[PULL V5][SRU][Jammy] Support Intel IPU6 MIPI camera on Alder Lake platforms
You-Sheng Yang
vicamo.yang at canonical.com
Tue Apr 12 03:39:17 UTC 2022
BugLink: https://bugs.launchpad.net/bugs/1955383
[Impact]
To support Intel IPU6 MIPI camera on Alder Lake platforms.
[Fix]
Initial support for Intel IPU6 MIPI camera on Tiger Lake platforms has
been addressed by bug 1921345 and 1939539. They are backported from
https://github.com/intel/ipu6-drivers.
Further works to enable IPU6 camera on Alder Lake platforms depend on a
few more fixes from same ipu6-drivers repository, as well as an extra
https://github.com/intel/ivsc-driver for Intel Vision Sensing
Controller(IVSC).
[Test Case]
This depends on an integral of enablement components inclusive of the
kernel drivers that are being proposed, firmware, updates for the
userspace camera hardware abstration layer library and a gstreamer
element as what we have for Tiger Lake platforms.
[Where problems could occur]
It's confirmed Intel IPU6 MIPI camera doesn't support suspend at
streaming.
[Other Info]
Before this, we did not submit IPU6 driver for generic kernel due to
the lack of a solid commitment from the vendor to upstream this
before kernel camera API is out. There is still no such commitment,
but during the process we've been able to address version migration
issues and we would continue to do so. We're getting to have the
confidence that it's possible to maintain and share the support for
generic Ubuntu users.
Fixes for oem-5.14 have been merged, so here we nominate for Jammy
only. This patchset is almost identical to that for oem-5.14 except
one additioanl fix for 5.15 kernel API change in "UBUNTU: SAUCE: Fix
build error for kernel 5.15".
V2: no change rebase only.
V3: build only on amd64 and add config annotations
V4: drop obsoleted cflags manipulation and fix UBSAN warnings
V5: correct wrong branch/repo generated in previous rev
----------------------------------------------------------------
The following changes since commit 121c072c840d6dd6854288dc24e85b16235f45e6:
UBUNTU: [Config] updateconfigs after AMX patchset (2022-04-07 11:51:15 +0200)
are available in the Git repository at:
https://git.launchpad.net/~vicamo/+git/ubuntu-kernel bug-1955383/intel-ipu6/jammy-pull
for you to fetch changes up to 8e952cebc24f22edbc586440c2f37091bdf7898e:
UBUNTU: SAUCE: IPU6: drop unnecessary cflags manipulation (2022-04-08 21:04:08 +0800)
----------------------------------------------------------------
Hao Yao (1):
UBUNTU: SAUCE: IPU6 driver release for kernel 5.14 on 2021-11-01
Ignacio Hernandez (1):
UBUNTU: SAUCE: Fix build error for kernel 5.15
Wang Yating (14):
UBUNTU: SAUCE: intel ipu drivers first release
UBUNTU: SAUCE: IPU driver release WW48
UBUNTU: SAUCE: IPU driver release WW48 with MCU
UBUNTU: SAUCE: IPU driver release WW52
UBUNTU: SAUCE: IPU driver release WW04
UBUNTU: SAUCE: IPU driver release WW14
UBUNTU: SAUCE: Fix ov01a1s output mirror issue
UBUNTU: SAUCE: integrate IPU6 builds
UBUNTU: SAUCE: Fix ov01a1s IQ issues
UBUNTU: SAUCE: intel/ipu6: Remove unnecessary video devices
UBUNTU: SAUCE: change power control driver to acpi driver
UBUNTU: SAUCE: IPU6 driver release for kernel 5.13
UBUNTU: SAUCE: sensor HM11b1 brightness bugfix
UBUNTU: SAUCE: Fix build error on Kernel 5.13
Wentong Wu (4):
UBUNTU: SAUCE: intel visual sensing controller(VSC) driver first release
UBUNTU: SAUCE: ivsc: return error when device not ready
UBUNTU: SAUCE: ivsc: add soft dependencies for intel_vsc module
UBUNTU: SAUCE: ivsc: add delay for acquire camera to wait firmware ready
Ye Xiang (7):
UBUNTU: SAUCE: ljca: switch wait event to uninterruptible
UBUNTU: SAUCE: mei-vsc: switch wait event to uninterruptible
UBUNTU: SAUCE: mei_vsc: add ACPI HID for ADL
UBUNTU: SAUCE: ljca: add multi ACPI HID support
UBUNTU: SAUCE: mei_vsc: distinguish platform with different camera sensor
UBUNTU: SAUCE: i2c-ljca: fix a potential issue
UBUNTU: SAUCE: ljca: disable autosuspend by default
You-Sheng Yang (5):
UBUNTU: [Config] updateconfigs for IPU6 driver
UBUNTU: [Config] IPU6: enable OV01A10 sensor
UBUNTU: [Config] ivsc: enable Intel VSC drivers
UBUNTU: [Config] make Intel IPU6 modules amd64 only
UBUNTU: SAUCE: IPU6: drop unnecessary cflags manipulation
debian.master/config/amd64/config.common.amd64 | 8 +
debian.master/config/annotations | 16 +
debian.master/config/arm64/config.common.arm64 | 8 +
debian.master/config/armhf/config.common.armhf | 5 +
debian.master/config/config.common.ubuntu | 8 +
debian.master/config/ppc64el/config.common.ppc64el | 5 +
debian.master/config/s390x/config.common.s390x | 3 +
drivers/gpio/Kconfig | 11 +
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-ljca.c | 468 ++++++
drivers/i2c/busses/Kconfig | 10 +
drivers/i2c/busses/Makefile | 1 +
drivers/i2c/busses/i2c-ljca.c | 422 +++++
drivers/media/i2c/Kconfig | 55 +
drivers/media/i2c/Makefile | 5 +
drivers/media/i2c/hm11b1.c | 1102 ++++++++++++
drivers/media/i2c/ov01a10.c | 934 +++++++++++
drivers/media/i2c/ov01a1s.c | 949 +++++++++++
drivers/media/i2c/power_ctrl_logic.c | 147 ++
drivers/media/i2c/power_ctrl_logic.h | 9 +
drivers/media/pci/Kconfig | 2 +-
drivers/media/pci/intel/Kconfig | 20 +
drivers/media/pci/intel/Makefile | 3 +-
drivers/media/pci/intel/ipu-bus.c | 254 +++
drivers/media/pci/intel/ipu-bus.h | 67 +
drivers/media/pci/intel/ipu-buttress.c | 1372 +++++++++++++++
drivers/media/pci/intel/ipu-buttress.h | 128 ++
drivers/media/pci/intel/ipu-cpd.c | 465 ++++++
drivers/media/pci/intel/ipu-cpd.h | 110 ++
drivers/media/pci/intel/ipu-dma.c | 406 +++++
drivers/media/pci/intel/ipu-dma.h | 19 +
drivers/media/pci/intel/ipu-fw-com.c | 496 ++++++
drivers/media/pci/intel/ipu-fw-com.h | 48 +
drivers/media/pci/intel/ipu-fw-isys.c | 600 +++++++
drivers/media/pci/intel/ipu-fw-isys.h | 816 +++++++++
drivers/media/pci/intel/ipu-fw-psys.c | 430 +++++
drivers/media/pci/intel/ipu-fw-psys.h | 382 +++++
drivers/media/pci/intel/ipu-isys-csi2-be-soc.c | 341 ++++
drivers/media/pci/intel/ipu-isys-csi2-be.c | 325 ++++
drivers/media/pci/intel/ipu-isys-csi2-be.h | 63 +
drivers/media/pci/intel/ipu-isys-csi2.c | 655 ++++++++
drivers/media/pci/intel/ipu-isys-csi2.h | 164 ++
drivers/media/pci/intel/ipu-isys-media.h | 77 +
drivers/media/pci/intel/ipu-isys-queue.c | 1063 ++++++++++++
drivers/media/pci/intel/ipu-isys-queue.h | 142 ++
drivers/media/pci/intel/ipu-isys-subdev.c | 650 ++++++++
drivers/media/pci/intel/ipu-isys-subdev.h | 152 ++
drivers/media/pci/intel/ipu-isys-tpg.c | 311 ++++
drivers/media/pci/intel/ipu-isys-tpg.h | 99 ++
drivers/media/pci/intel/ipu-isys-video.c | 1748 ++++++++++++++++++++
drivers/media/pci/intel/ipu-isys-video.h | 178 ++
drivers/media/pci/intel/ipu-isys.c | 1355 +++++++++++++++
drivers/media/pci/intel/ipu-isys.h | 227 +++
drivers/media/pci/intel/ipu-mmu.c | 858 ++++++++++
drivers/media/pci/intel/ipu-mmu.h | 76 +
drivers/media/pci/intel/ipu-pdata.h | 242 +++
drivers/media/pci/intel/ipu-psys-compat32.c | 225 +++
drivers/media/pci/intel/ipu-psys.c | 1618 ++++++++++++++++++
drivers/media/pci/intel/ipu-psys.h | 217 +++
drivers/media/pci/intel/ipu-trace.c | 869 ++++++++++
drivers/media/pci/intel/ipu-trace.h | 146 ++
drivers/media/pci/intel/ipu.c | 823 +++++++++
drivers/media/pci/intel/ipu.h | 109 ++
drivers/media/pci/intel/ipu6/Makefile | 58 +
drivers/media/pci/intel/ipu6/ipu-fw-resources.c | 103 ++
.../pci/intel/ipu6/ipu-platform-buttress-regs.h | 317 ++++
.../pci/intel/ipu6/ipu-platform-isys-csi2-reg.h | 277 ++++
drivers/media/pci/intel/ipu6/ipu-platform-isys.h | 26 +
drivers/media/pci/intel/ipu6/ipu-platform-psys.h | 78 +
drivers/media/pci/intel/ipu6/ipu-platform-regs.h | 333 ++++
.../media/pci/intel/ipu6/ipu-platform-resources.h | 103 ++
drivers/media/pci/intel/ipu6/ipu-platform.h | 34 +
drivers/media/pci/intel/ipu6/ipu-resources.c | 851 ++++++++++
drivers/media/pci/intel/ipu6/ipu6-fw-resources.c | 608 +++++++
drivers/media/pci/intel/ipu6/ipu6-isys-csi2.c | 513 ++++++
drivers/media/pci/intel/ipu6/ipu6-isys-csi2.h | 14 +
drivers/media/pci/intel/ipu6/ipu6-isys-gpc.c | 203 +++
drivers/media/pci/intel/ipu6/ipu6-isys-phy.c | 595 +++++++
drivers/media/pci/intel/ipu6/ipu6-isys-phy.h | 159 ++
drivers/media/pci/intel/ipu6/ipu6-isys.c | 174 ++
drivers/media/pci/intel/ipu6/ipu6-l-scheduler.c | 615 +++++++
.../media/pci/intel/ipu6/ipu6-platform-resources.h | 196 +++
drivers/media/pci/intel/ipu6/ipu6-ppg.c | 560 +++++++
drivers/media/pci/intel/ipu6/ipu6-ppg.h | 38 +
drivers/media/pci/intel/ipu6/ipu6-psys-gpc.c | 210 +++
drivers/media/pci/intel/ipu6/ipu6-psys.c | 1032 ++++++++++++
drivers/media/pci/intel/ipu6/ipu6.c | 333 ++++
drivers/media/pci/intel/ipu6/ipu6ep-fw-resources.c | 393 +++++
.../pci/intel/ipu6/ipu6ep-platform-resources.h | 42 +
drivers/media/pci/intel/ipu6/ipu6se-fw-resources.c | 194 +++
.../pci/intel/ipu6/ipu6se-platform-resources.h | 103 ++
drivers/mfd/Kconfig | 10 +
drivers/mfd/Makefile | 2 +
drivers/mfd/ljca.c | 1191 +++++++++++++
drivers/misc/Kconfig | 1 +
drivers/misc/Makefile | 1 +
drivers/misc/ivsc/Kconfig | 40 +
drivers/misc/ivsc/Makefile | 9 +
drivers/misc/ivsc/intel_vsc.c | 250 +++
drivers/misc/ivsc/intel_vsc.h | 177 ++
drivers/misc/ivsc/mei_ace.c | 589 +++++++
drivers/misc/ivsc/mei_ace_debug.c | 696 ++++++++
drivers/misc/ivsc/mei_csi.c | 456 +++++
drivers/misc/ivsc/mei_pse.c | 944 +++++++++++
drivers/misc/mei/Kconfig | 7 +
drivers/misc/mei/Makefile | 4 +
drivers/misc/mei/hw-vsc.c | 1637 ++++++++++++++++++
drivers/misc/mei/hw-vsc.h | 378 +++++
drivers/misc/mei/spi-vsc.c | 293 ++++
drivers/spi/Kconfig | 10 +
drivers/spi/Makefile | 1 +
drivers/spi/spi-ljca.c | 328 ++++
drivers/usb/Kconfig | 2 +
drivers/usb/Makefile | 2 +
drivers/usb/intel_ulpss/Kconfig | 11 +
drivers/usb/intel_ulpss/Makefile | 3 +
drivers/usb/intel_ulpss/diag_stub.c | 116 ++
drivers/usb/intel_ulpss/diag_stub.h | 19 +
drivers/usb/intel_ulpss/gpio_stub.c | 459 +++++
drivers/usb/intel_ulpss/gpio_stub.h | 13 +
drivers/usb/intel_ulpss/i2c_stub.c | 456 +++++
drivers/usb/intel_ulpss/i2c_stub.h | 21 +
drivers/usb/intel_ulpss/mng_stub.c | 244 +++
drivers/usb/intel_ulpss/mng_stub.h | 18 +
drivers/usb/intel_ulpss/protocol_intel_ulpss.h | 173 ++
drivers/usb/intel_ulpss/ulpss_bridge.c | 529 ++++++
drivers/usb/intel_ulpss/ulpss_bridge.h | 77 +
drivers/usb/intel_ulpss/usb_stub.c | 285 ++++
drivers/usb/intel_ulpss/usb_stub.h | 49 +
include/linux/mfd/ljca.h | 47 +
include/linux/vsc.h | 83 +
include/media/ipu-isys.h | 44 +
include/uapi/linux/ipu-isys.h | 15 +
include/uapi/linux/ipu-psys.h | 121 ++
134 files changed, 40489 insertions(+), 2 deletions(-)
create mode 100644 drivers/gpio/gpio-ljca.c
create mode 100644 drivers/i2c/busses/i2c-ljca.c
create mode 100644 drivers/media/i2c/hm11b1.c
create mode 100644 drivers/media/i2c/ov01a10.c
create mode 100644 drivers/media/i2c/ov01a1s.c
create mode 100644 drivers/media/i2c/power_ctrl_logic.c
create mode 100644 drivers/media/i2c/power_ctrl_logic.h
create mode 100644 drivers/media/pci/intel/Kconfig
create mode 100644 drivers/media/pci/intel/ipu-bus.c
create mode 100644 drivers/media/pci/intel/ipu-bus.h
create mode 100644 drivers/media/pci/intel/ipu-buttress.c
create mode 100644 drivers/media/pci/intel/ipu-buttress.h
create mode 100644 drivers/media/pci/intel/ipu-cpd.c
create mode 100644 drivers/media/pci/intel/ipu-cpd.h
create mode 100644 drivers/media/pci/intel/ipu-dma.c
create mode 100644 drivers/media/pci/intel/ipu-dma.h
create mode 100644 drivers/media/pci/intel/ipu-fw-com.c
create mode 100644 drivers/media/pci/intel/ipu-fw-com.h
create mode 100644 drivers/media/pci/intel/ipu-fw-isys.c
create mode 100644 drivers/media/pci/intel/ipu-fw-isys.h
create mode 100644 drivers/media/pci/intel/ipu-fw-psys.c
create mode 100644 drivers/media/pci/intel/ipu-fw-psys.h
create mode 100644 drivers/media/pci/intel/ipu-isys-csi2-be-soc.c
create mode 100644 drivers/media/pci/intel/ipu-isys-csi2-be.c
create mode 100644 drivers/media/pci/intel/ipu-isys-csi2-be.h
create mode 100644 drivers/media/pci/intel/ipu-isys-csi2.c
create mode 100644 drivers/media/pci/intel/ipu-isys-csi2.h
create mode 100644 drivers/media/pci/intel/ipu-isys-media.h
create mode 100644 drivers/media/pci/intel/ipu-isys-queue.c
create mode 100644 drivers/media/pci/intel/ipu-isys-queue.h
create mode 100644 drivers/media/pci/intel/ipu-isys-subdev.c
create mode 100644 drivers/media/pci/intel/ipu-isys-subdev.h
create mode 100644 drivers/media/pci/intel/ipu-isys-tpg.c
create mode 100644 drivers/media/pci/intel/ipu-isys-tpg.h
create mode 100644 drivers/media/pci/intel/ipu-isys-video.c
create mode 100644 drivers/media/pci/intel/ipu-isys-video.h
create mode 100644 drivers/media/pci/intel/ipu-isys.c
create mode 100644 drivers/media/pci/intel/ipu-isys.h
create mode 100644 drivers/media/pci/intel/ipu-mmu.c
create mode 100644 drivers/media/pci/intel/ipu-mmu.h
create mode 100644 drivers/media/pci/intel/ipu-pdata.h
create mode 100644 drivers/media/pci/intel/ipu-psys-compat32.c
create mode 100644 drivers/media/pci/intel/ipu-psys.c
create mode 100644 drivers/media/pci/intel/ipu-psys.h
create mode 100644 drivers/media/pci/intel/ipu-trace.c
create mode 100644 drivers/media/pci/intel/ipu-trace.h
create mode 100644 drivers/media/pci/intel/ipu.c
create mode 100644 drivers/media/pci/intel/ipu.h
create mode 100644 drivers/media/pci/intel/ipu6/Makefile
create mode 100644 drivers/media/pci/intel/ipu6/ipu-fw-resources.c
create mode 100644 drivers/media/pci/intel/ipu6/ipu-platform-buttress-regs.h
create mode 100644 drivers/media/pci/intel/ipu6/ipu-platform-isys-csi2-reg.h
create mode 100644 drivers/media/pci/intel/ipu6/ipu-platform-isys.h
create mode 100644 drivers/media/pci/intel/ipu6/ipu-platform-psys.h
create mode 100644 drivers/media/pci/intel/ipu6/ipu-platform-regs.h
create mode 100644 drivers/media/pci/intel/ipu6/ipu-platform-resources.h
create mode 100644 drivers/media/pci/intel/ipu6/ipu-platform.h
create mode 100644 drivers/media/pci/intel/ipu6/ipu-resources.c
create mode 100644 drivers/media/pci/intel/ipu6/ipu6-fw-resources.c
create mode 100644 drivers/media/pci/intel/ipu6/ipu6-isys-csi2.c
create mode 100644 drivers/media/pci/intel/ipu6/ipu6-isys-csi2.h
create mode 100644 drivers/media/pci/intel/ipu6/ipu6-isys-gpc.c
create mode 100644 drivers/media/pci/intel/ipu6/ipu6-isys-phy.c
create mode 100644 drivers/media/pci/intel/ipu6/ipu6-isys-phy.h
create mode 100644 drivers/media/pci/intel/ipu6/ipu6-isys.c
create mode 100644 drivers/media/pci/intel/ipu6/ipu6-l-scheduler.c
create mode 100644 drivers/media/pci/intel/ipu6/ipu6-platform-resources.h
create mode 100644 drivers/media/pci/intel/ipu6/ipu6-ppg.c
create mode 100644 drivers/media/pci/intel/ipu6/ipu6-ppg.h
create mode 100644 drivers/media/pci/intel/ipu6/ipu6-psys-gpc.c
create mode 100644 drivers/media/pci/intel/ipu6/ipu6-psys.c
create mode 100644 drivers/media/pci/intel/ipu6/ipu6.c
create mode 100644 drivers/media/pci/intel/ipu6/ipu6ep-fw-resources.c
create mode 100644 drivers/media/pci/intel/ipu6/ipu6ep-platform-resources.h
create mode 100644 drivers/media/pci/intel/ipu6/ipu6se-fw-resources.c
create mode 100644 drivers/media/pci/intel/ipu6/ipu6se-platform-resources.h
create mode 100644 drivers/mfd/ljca.c
create mode 100644 drivers/misc/ivsc/Kconfig
create mode 100644 drivers/misc/ivsc/Makefile
create mode 100644 drivers/misc/ivsc/intel_vsc.c
create mode 100644 drivers/misc/ivsc/intel_vsc.h
create mode 100644 drivers/misc/ivsc/mei_ace.c
create mode 100644 drivers/misc/ivsc/mei_ace_debug.c
create mode 100644 drivers/misc/ivsc/mei_csi.c
create mode 100644 drivers/misc/ivsc/mei_pse.c
create mode 100644 drivers/misc/mei/hw-vsc.c
create mode 100644 drivers/misc/mei/hw-vsc.h
create mode 100644 drivers/misc/mei/spi-vsc.c
create mode 100644 drivers/spi/spi-ljca.c
create mode 100644 drivers/usb/intel_ulpss/Kconfig
create mode 100644 drivers/usb/intel_ulpss/Makefile
create mode 100644 drivers/usb/intel_ulpss/diag_stub.c
create mode 100644 drivers/usb/intel_ulpss/diag_stub.h
create mode 100644 drivers/usb/intel_ulpss/gpio_stub.c
create mode 100644 drivers/usb/intel_ulpss/gpio_stub.h
create mode 100644 drivers/usb/intel_ulpss/i2c_stub.c
create mode 100644 drivers/usb/intel_ulpss/i2c_stub.h
create mode 100644 drivers/usb/intel_ulpss/mng_stub.c
create mode 100644 drivers/usb/intel_ulpss/mng_stub.h
create mode 100644 drivers/usb/intel_ulpss/protocol_intel_ulpss.h
create mode 100644 drivers/usb/intel_ulpss/ulpss_bridge.c
create mode 100644 drivers/usb/intel_ulpss/ulpss_bridge.h
create mode 100644 drivers/usb/intel_ulpss/usb_stub.c
create mode 100644 drivers/usb/intel_ulpss/usb_stub.h
create mode 100644 include/linux/mfd/ljca.h
create mode 100644 include/linux/vsc.h
create mode 100644 include/media/ipu-isys.h
create mode 100644 include/uapi/linux/ipu-isys.h
create mode 100644 include/uapi/linux/ipu-psys.h
diff --git a/debian.master/config/amd64/config.common.amd64 b/debian.master/config/amd64/config.common.amd64
index c045fcb816e6d..d2a638c6091a5 100644
--- a/debian.master/config/amd64/config.common.amd64
+++ b/debian.master/config/amd64/config.common.amd64
@@ -272,6 +272,10 @@ CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_SPARSEKMAP=m
CONFIG_INPUT_TABLET=y
CONFIG_INPUT_TOUCHSCREEN=y
+CONFIG_INTEL_LPSS_USB=m
+CONFIG_INTEL_VSC=m
+CONFIG_INTEL_VSC_ACE_DEBUG=m
+CONFIG_INTEL_VSC_PSE=m
CONFIG_INTERCONNECT=y
CONFIG_IOMMU_DEFAULT_DMA_LAZY=y
# CONFIG_IOMMU_DEFAULT_DMA_STRICT is not set
@@ -336,6 +340,7 @@ CONFIG_MFD_INTEL_PMT=m
CONFIG_MFD_IQS62X=m
CONFIG_MFD_JANZ_CMODIO=m
CONFIG_MFD_KEMPLD=m
+CONFIG_MFD_LJCA=m
CONFIG_MFD_LM3533=m
CONFIG_MFD_LP3943=m
CONFIG_MFD_MADERA=m
@@ -484,6 +489,7 @@ CONFIG_PINCTRL=y
CONFIG_PMIC_OPREGION=y
CONFIG_PM_DEVFREQ=y
CONFIG_POWERCAP=y
+CONFIG_POWER_CTRL_LOGIC=m
CONFIG_POWER_SUPPLY=y
CONFIG_PPP=y
CONFIG_PPS=y
@@ -659,6 +665,8 @@ CONFIG_VFIO_IOMMU_TYPE1=y
CONFIG_VFIO_PCI=y
CONFIG_VFIO_PCI_CORE=y
CONFIG_VFIO_VIRQFD=y
+CONFIG_VIDEO_INTEL_IPU6=m
+CONFIG_VIDEO_OV01A10=m
CONFIG_VIRTIO_MMIO=y
CONFIG_VME_BUS=y
CONFIG_VMXNET3=m
diff --git a/debian.master/config/annotations b/debian.master/config/annotations
index bb9ca38e7ebaf..2dd8414d62a5c 100644
--- a/debian.master/config/annotations
+++ b/debian.master/config/annotations
@@ -1909,6 +1909,7 @@ CONFIG_GPIO_GRGPIO policy<{'arm64': 'm', 'armhf': '
CONFIG_GPIO_HISI policy<{'arm64': 'm'}>
CONFIG_GPIO_HLWD policy<{'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm'}>
CONFIG_GPIO_ICH policy<{'amd64': 'm'}>
+CONFIG_GPIO_LJCA policy<{'amd64': 'm'}>
CONFIG_GPIO_LOGICVC policy<{'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm'}>
CONFIG_GPIO_MB86S7X policy<{'amd64': 'm', 'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm', 's390x': 'n'}>
CONFIG_GPIO_MENZ127 policy<{'amd64': 'm', 'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm'}>
@@ -3182,6 +3183,7 @@ CONFIG_I2C_ROBOTFUZZ_OSIF policy<{'amd64': 'm', 'arm64': '
CONFIG_I2C_TAOS_EVM policy<{'amd64': 'm', 'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm', 's390x': 'n'}>
CONFIG_I2C_TINY_USB policy<{'amd64': 'm', 'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm'}>
CONFIG_I2C_VIPERBOARD policy<{'amd64': 'm', 'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm'}>
+CONFIG_I2C_LJCA policy<{'amd64': 'm'}>
CONFIG_I2C_MLXCPLD policy<{'amd64': 'm'}>
CONFIG_I2C_CROS_EC_TUNNEL policy<{'amd64': 'm', 'arm64': 'm', 'armhf': 'm'}>
CONFIG_I2C_XGENE_SLIMPRO policy<{'arm64': 'm'}>
@@ -4764,6 +4766,12 @@ CONFIG_INTEL_MEI policy<{'amd64': 'm'}>
CONFIG_INTEL_MEI_ME policy<{'amd64': 'm'}>
CONFIG_INTEL_MEI_TXE policy<{'amd64': 'm'}>
CONFIG_INTEL_MEI_HDCP policy<{'amd64': 'm'}>
+CONFIG_INTEL_VSC policy<{'amd64': 'm', 'arm64': 'n', 'armhf': 'n', 'ppc64el': 'n', 's390x': 'n'}>
+CONFIG_INTEL_VSC_ACE policy<{'amd64': 'm'}>
+CONFIG_INTEL_VSC_ACE_DEBUG policy<{'amd64': 'm', 'arm64': 'n', 'armhf': 'n', 'ppc64el': 'n', 's390x': 'n'}>
+CONFIG_INTEL_VSC_CSI policy<{'amd64': 'm'}>
+CONFIG_INTEL_VSC_PSE policy<{'amd64': 'm', 'arm64': 'n', 'armhf': 'n', 'ppc64el': 'n', 's390x': 'n'}>
+CONFIG_INTEL_MEI_VSC policy<{'amd64': 'm'}>
CONFIG_VMWARE_VMCI policy<{'amd64': 'm'}>
CONFIG_ECHO policy<{'amd64': 'm', 'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm', 's390x': 'n'}>
CONFIG_CXL policy<{'ppc64el': 'm'}>
@@ -4959,6 +4967,7 @@ CONFIG_RAVE_SP_CORE policy<{'amd64': 'm', 'arm64': '
CONFIG_MFD_INTEL_M10_BMC policy<{'amd64': 'm', 'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm'}>
CONFIG_MFD_RSMU_I2C policy<{'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm'}>
CONFIG_MFD_RSMU_SPI policy<{'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm'}>
+CONFIG_MFD_LJCA policy<{'amd64': 'm', 'arm64': 'n', 'armhf': 'n', 'ppc64el': 'n'}>
#
CONFIG_MFD_SM501 note<boot essential on OMAP4>
CONFIG_MFD_TPS65217 mark<ENFORCED> note<boot essential on AM335x>
@@ -5083,6 +5092,10 @@ CONFIG_VIDEO_S5K5BAF policy<{'amd64': 'm', 'arm64': '
CONFIG_VIDEO_CCS policy<{'amd64': 'm', 'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm'}>
CONFIG_VIDEO_ET8EK8 policy<{'amd64': 'm', 'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm'}>
CONFIG_VIDEO_S5C73M3 policy<{'amd64': 'm', 'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm'}>
+CONFIG_POWER_CTRL_LOGIC policy<{'amd64': 'm', 'arm64': 'n'}>
+CONFIG_VIDEO_OV01A10 policy<{'amd64': 'm', 'arm64': 'n'}>
+CONFIG_VIDEO_OV01A1S policy<{'amd64': 'm'}>
+CONFIG_VIDEO_HM11B1 policy<{'amd64': 'm'}>
# Menu: Device Drivers >> Multimedia support >> Media ancillary drivers >> Customise DVB Frontends
CONFIG_DVB_STB0899 policy<{'amd64': 'm', 'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm'}>
@@ -5380,6 +5393,7 @@ CONFIG_DVB_DDBRIDGE policy<{'amd64': 'm', 'arm64': '
CONFIG_DVB_DDBRIDGE_MSIENABLE policy<{'amd64': 'n', 'arm64': 'n', 'armhf': 'n', 'ppc64el': 'n'}>
CONFIG_DVB_SMIPCIE policy<{'amd64': 'm', 'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm'}>
CONFIG_DVB_NETUP_UNIDVB policy<{'amd64': 'm', 'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm'}>
+CONFIG_VIDEO_INTEL_IPU6 policy<{'amd64': 'm', 'arm64': 'n'}>
CONFIG_VIDEO_IPU3_CIO2 policy<{'amd64': 'm'}>
CONFIG_CIO2_BRIDGE policy<{'amd64': 'y'}>
CONFIG_VIDEO_PCI_SKELETON policy<{'amd64': 'n', 'arm64': 'n', 'armhf': 'n', 'ppc64el': 'n'}>
@@ -8448,6 +8462,7 @@ CONFIG_SPI_HISI_SFC_V3XX policy<{'arm64': 'm'}>
CONFIG_SPI_NXP_FLEXSPI policy<{'amd64': 'm', 'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm'}>
CONFIG_SPI_GPIO policy<{'amd64': 'm', 'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm'}>
CONFIG_SPI_IMX policy<{'arm64': 'm', 'armhf-generic': 'm'}>
+CONFIG_SPI_LJCA policy<{'amd64': 'm'}>
CONFIG_SPI_LM70_LLP policy<{'amd64': 'm', 'arm64': 'm', 'armhf': 'm', 'ppc64el': 'm'}>
CONFIG_SPI_FSL_SPI policy<{'arm64': 'y', 'armhf': 'y', 'ppc64el': 'y'}>
CONFIG_SPI_FSL_DSPI policy<{'arm64': 'm', 'armhf-generic': 'm'}>
@@ -9667,6 +9682,7 @@ CONFIG_USB_PCI policy<{'amd64': 'y', 'arm64': '
CONFIG_USB_UHCI_HCD policy<{'amd64': 'y', 'arm64': 'y', 'armhf': 'y', 'ppc64el': 'y'}>
CONFIG_USB_ROLE_SWITCH policy<{'amd64': 'y', 'arm64': 'y', 'armhf': 'y', 'ppc64el': 'y'}>
CONFIG_USB_ROLES_INTEL_XHCI policy<{'amd64': 'm'}>
+CONFIG_INTEL_LPSS_USB policy<{'amd64': 'm', 'arm64': 'n', 'armhf': 'n', 'ppc64el': 'n'}>
#
CONFIG_USB_UHCI_HCD mark<ENFORCED> note<ensures USB 2.0/1.1 probe ordering> flag<REVIEW>
diff --git a/debian.master/config/arm64/config.common.arm64 b/debian.master/config/arm64/config.common.arm64
index 85871d9927141..d0354c8fa4046 100644
--- a/debian.master/config/arm64/config.common.arm64
+++ b/debian.master/config/arm64/config.common.arm64
@@ -286,6 +286,10 @@ CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_SPARSEKMAP=m
CONFIG_INPUT_TABLET=y
CONFIG_INPUT_TOUCHSCREEN=y
+# CONFIG_INTEL_LPSS_USB is not set
+# CONFIG_INTEL_VSC is not set
+# CONFIG_INTEL_VSC_ACE_DEBUG is not set
+# CONFIG_INTEL_VSC_PSE is not set
CONFIG_INTERCONNECT=y
# CONFIG_IOMMU_DEFAULT_DMA_LAZY is not set
CONFIG_IOMMU_DEFAULT_DMA_STRICT=y
@@ -350,6 +354,7 @@ CONFIG_MFD_INTEL_PMT=m
CONFIG_MFD_IQS62X=m
CONFIG_MFD_JANZ_CMODIO=m
CONFIG_MFD_KEMPLD=m
+# CONFIG_MFD_LJCA is not set
CONFIG_MFD_LM3533=m
CONFIG_MFD_LP3943=m
CONFIG_MFD_MADERA=m
@@ -503,6 +508,7 @@ CONFIG_PINCTRL=y
# CONFIG_PMIC_OPREGION is not set
CONFIG_PM_DEVFREQ=y
CONFIG_POWERCAP=y
+# CONFIG_POWER_CTRL_LOGIC is not set
CONFIG_POWER_SUPPLY=y
CONFIG_PPP=y
CONFIG_PPS=y
@@ -692,6 +698,8 @@ CONFIG_VFIO_IOMMU_TYPE1=m
CONFIG_VFIO_PCI=m
CONFIG_VFIO_PCI_CORE=m
CONFIG_VFIO_VIRQFD=m
+# CONFIG_VIDEO_INTEL_IPU6 is not set
+# CONFIG_VIDEO_OV01A10 is not set
CONFIG_VIDEO_TI_CAL_MC=y
CONFIG_VIRTIO_MMIO=y
CONFIG_VME_BUS=y
diff --git a/debian.master/config/armhf/config.common.armhf b/debian.master/config/armhf/config.common.armhf
index eee868930bb74..e648cf21b806c 100644
--- a/debian.master/config/armhf/config.common.armhf
+++ b/debian.master/config/armhf/config.common.armhf
@@ -280,6 +280,10 @@ CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_SPARSEKMAP=m
CONFIG_INPUT_TABLET=y
CONFIG_INPUT_TOUCHSCREEN=y
+# CONFIG_INTEL_LPSS_USB is not set
+# CONFIG_INTEL_VSC is not set
+# CONFIG_INTEL_VSC_ACE_DEBUG is not set
+# CONFIG_INTEL_VSC_PSE is not set
CONFIG_INTERCONNECT=y
# CONFIG_IOMMU_DEFAULT_DMA_LAZY is not set
CONFIG_IOMMU_DEFAULT_DMA_STRICT=y
@@ -342,6 +346,7 @@ CONFIG_MFD_INTEL_PMT=m
CONFIG_MFD_IQS62X=m
CONFIG_MFD_JANZ_CMODIO=m
CONFIG_MFD_KEMPLD=m
+# CONFIG_MFD_LJCA is not set
CONFIG_MFD_LM3533=m
CONFIG_MFD_LP3943=m
CONFIG_MFD_MADERA=m
diff --git a/debian.master/config/config.common.ubuntu b/debian.master/config/config.common.ubuntu
index 0addbd1d6386b..65f4f4ae63759 100644
--- a/debian.master/config/config.common.ubuntu
+++ b/debian.master/config/config.common.ubuntu
@@ -3978,6 +3978,7 @@ CONFIG_GPIO_ICH=m
CONFIG_GPIO_IT87=m
CONFIG_GPIO_JANZ_TTL=m
CONFIG_GPIO_KEMPLD=m
+CONFIG_GPIO_LJCA=m
CONFIG_GPIO_LOGICVC=m
CONFIG_GPIO_LP3943=m
CONFIG_GPIO_LP873X=m
@@ -4592,6 +4593,7 @@ CONFIG_I2C_HIX5HD2=m
CONFIG_I2C_IMX_LPI2C=m
CONFIG_I2C_ISMT=m
CONFIG_I2C_KEMPLD=m
+CONFIG_I2C_LJCA=m
CONFIG_I2C_MESON=m
CONFIG_I2C_MLXBF=m
CONFIG_I2C_MLXCPLD=m
@@ -4998,6 +5000,7 @@ CONFIG_INTEL_MEI=m
CONFIG_INTEL_MEI_HDCP=m
CONFIG_INTEL_MEI_ME=m
CONFIG_INTEL_MEI_TXE=m
+CONFIG_INTEL_MEI_VSC=m
CONFIG_INTEL_MEI_WDT=m
CONFIG_INTEL_MENLOW=m
CONFIG_INTEL_MRFLD_ADC=m
@@ -5046,6 +5049,8 @@ CONFIG_INTEL_TURBO_MAX_3=y
CONFIG_INTEL_TXT=y
CONFIG_INTEL_UNCORE_FREQ_CONTROL=m
CONFIG_INTEL_VBTN=m
+CONFIG_INTEL_VSC_ACE=m
+CONFIG_INTEL_VSC_CSI=m
CONFIG_INTEL_WMI=y
CONFIG_INTEL_WMI_SBL_FW_UPDATE=m
CONFIG_INTEL_WMI_THUNDERBOLT=m
@@ -10661,6 +10666,7 @@ CONFIG_SPI_IMX=m
# CONFIG_SPI_INTEL_SPI_PCI is not set
# CONFIG_SPI_INTEL_SPI_PLATFORM is not set
CONFIG_SPI_LANTIQ_SSC=m
+CONFIG_SPI_LJCA=m
CONFIG_SPI_LM70_LLP=m
CONFIG_SPI_LOOPBACK_TEST=m
CONFIG_SPI_MASTER=y
@@ -12143,6 +12149,7 @@ CONFIG_VIDEO_HDPVR=m
CONFIG_VIDEO_HEXIUM_GEMINI=m
CONFIG_VIDEO_HEXIUM_ORION=m
CONFIG_VIDEO_HI556=m
+CONFIG_VIDEO_HM11B1=m
CONFIG_VIDEO_I2C=m
CONFIG_VIDEO_IMX208=m
CONFIG_VIDEO_IMX214=m
@@ -12197,6 +12204,7 @@ CONFIG_VIDEO_OMAP2_VOUT_VRFB=y
CONFIG_VIDEO_OMAP3=m
# CONFIG_VIDEO_OMAP3_DEBUG is not set
CONFIG_VIDEO_OMAP4=m
+CONFIG_VIDEO_OV01A1S=m
CONFIG_VIDEO_OV02A10=m
CONFIG_VIDEO_OV13858=m
CONFIG_VIDEO_OV2640=m
diff --git a/debian.master/config/ppc64el/config.common.ppc64el b/debian.master/config/ppc64el/config.common.ppc64el
index a6f33a530c252..2a43f49df81f3 100644
--- a/debian.master/config/ppc64el/config.common.ppc64el
+++ b/debian.master/config/ppc64el/config.common.ppc64el
@@ -278,6 +278,10 @@ CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_SPARSEKMAP=m
CONFIG_INPUT_TABLET=y
CONFIG_INPUT_TOUCHSCREEN=y
+# CONFIG_INTEL_LPSS_USB is not set
+# CONFIG_INTEL_VSC is not set
+# CONFIG_INTEL_VSC_ACE_DEBUG is not set
+# CONFIG_INTEL_VSC_PSE is not set
CONFIG_INTERCONNECT=y
# CONFIG_IOMMU_DEFAULT_DMA_LAZY is not set
CONFIG_IOMMU_DEFAULT_DMA_STRICT=y
@@ -344,6 +348,7 @@ CONFIG_MFD_INTEL_PMT=m
CONFIG_MFD_IQS62X=m
CONFIG_MFD_JANZ_CMODIO=m
CONFIG_MFD_KEMPLD=m
+# CONFIG_MFD_LJCA is not set
CONFIG_MFD_LM3533=m
CONFIG_MFD_LP3943=m
CONFIG_MFD_MADERA=m
diff --git a/debian.master/config/s390x/config.common.s390x b/debian.master/config/s390x/config.common.s390x
index c91f2c92e4930..1fc583382a0ea 100644
--- a/debian.master/config/s390x/config.common.s390x
+++ b/debian.master/config/s390x/config.common.s390x
@@ -256,6 +256,9 @@ CONFIG_IMA_NG_TEMPLATE=y
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
+# CONFIG_INTEL_VSC is not set
+# CONFIG_INTEL_VSC_ACE_DEBUG is not set
+# CONFIG_INTEL_VSC_PSE is not set
# CONFIG_INTERCONNECT is not set
# CONFIG_IOMMU_DEFAULT_DMA_LAZY is not set
CONFIG_IOMMU_DEFAULT_DMA_STRICT=y
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 179c225298f5c..c1e8597e3227c 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -353,6 +353,17 @@ config GPIO_IXP4XX
IXP4xx series of chips.
If unsure, say N.
+
+config GPIO_LJCA
+ tristate "INTEL La Jolla Cove Adapter GPIO support"
+ depends on MFD_LJCA
+ help
+ Select this option to enable GPIO driver for the INTEL
+ La Jolla Cove Adapter (LJCA) board.
+
+ This driver can also be built as a module. If so, the module
+ will be called gpio-ljca.
+
config GPIO_LOGICVC
tristate "Xylon LogiCVC GPIO support"
depends on MFD_SYSCON && OF
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 086258d990911..9ef8d56a62327 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -75,6 +75,7 @@ obj-$(CONFIG_GPIO_IT87) += gpio-it87.o
obj-$(CONFIG_GPIO_IXP4XX) += gpio-ixp4xx.o
obj-$(CONFIG_GPIO_JANZ_TTL) += gpio-janz-ttl.o
obj-$(CONFIG_GPIO_KEMPLD) += gpio-kempld.o
+obj-$(CONFIG_GPIO_LJCA) += gpio-ljca.o
obj-$(CONFIG_GPIO_LOGICVC) += gpio-logicvc.o
obj-$(CONFIG_GPIO_LOONGSON1) += gpio-loongson1.o
obj-$(CONFIG_GPIO_LOONGSON) += gpio-loongson.o
diff --git a/drivers/gpio/gpio-ljca.c b/drivers/gpio/gpio-ljca.c
new file mode 100644
index 0000000000000..efaa690215bfd
--- /dev/null
+++ b/drivers/gpio/gpio-ljca.c
@@ -0,0 +1,468 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Intel La Jolla Cove Adapter USB-GPIO driver
+ *
+ * Copyright (c) 2021, Intel Corporation.
+ */
+
+#include <linux/acpi.h>
+#include <linux/gpio/driver.h>
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/kref.h>
+#include <linux/mfd/ljca.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/bitops.h>
+
+#define GPIO_PAYLOAD_LEN(pin_num) \
+ (sizeof(struct gpio_packet) + (pin_num) * sizeof(struct gpio_op))
+
+/* GPIO commands */
+#define GPIO_CONFIG 1
+#define GPIO_READ 2
+#define GPIO_WRITE 3
+#define GPIO_INT_EVENT 4
+#define GPIO_INT_MASK 5
+#define GPIO_INT_UNMASK 6
+
+#define GPIO_CONF_DISABLE BIT(0)
+#define GPIO_CONF_INPUT BIT(1)
+#define GPIO_CONF_OUTPUT BIT(2)
+#define GPIO_CONF_PULLUP BIT(3)
+#define GPIO_CONF_PULLDOWN BIT(4)
+#define GPIO_CONF_DEFAULT BIT(5)
+#define GPIO_CONF_INTERRUPT BIT(6)
+#define GPIO_INT_TYPE BIT(7)
+
+#define GPIO_CONF_EDGE (1 << 7)
+#define GPIO_CONF_LEVEL (0 << 7)
+
+/* Intentional overlap with PULLUP / PULLDOWN */
+#define GPIO_CONF_SET BIT(3)
+#define GPIO_CONF_CLR BIT(4)
+
+struct gpio_op {
+ u8 index;
+ u8 value;
+} __packed;
+
+struct gpio_packet {
+ u8 num;
+ struct gpio_op item[];
+} __packed;
+
+struct ljca_gpio_dev {
+ struct platform_device *pdev;
+ struct gpio_chip gc;
+ struct ljca_gpio_info *ctr_info;
+ DECLARE_BITMAP(unmasked_irqs, MAX_GPIO_NUM);
+ DECLARE_BITMAP(enabled_irqs, MAX_GPIO_NUM);
+ DECLARE_BITMAP(reenable_irqs, MAX_GPIO_NUM);
+ u8 *connect_mode;
+ struct mutex irq_lock;
+ struct work_struct work;
+ struct mutex trans_lock;
+
+ u8 obuf[256];
+ u8 ibuf[256];
+};
+
+static bool ljca_gpio_valid(struct ljca_gpio_dev *ljca_gpio, int gpio_id)
+{
+ if (gpio_id >= ljca_gpio->ctr_info->num ||
+ !test_bit(gpio_id, ljca_gpio->ctr_info->valid_pin_map)) {
+ dev_err(&ljca_gpio->pdev->dev,
+ "invalid gpio gpio_id gpio_id:%d\n", gpio_id);
+ return false;
+ }
+
+ return true;
+}
+
+static int gpio_config(struct ljca_gpio_dev *ljca_gpio, u8 gpio_id, u8 config)
+{
+ struct gpio_packet *packet = (struct gpio_packet *)ljca_gpio->obuf;
+ int ret;
+
+ if (!ljca_gpio_valid(ljca_gpio, gpio_id))
+ return -EINVAL;
+
+ mutex_lock(&ljca_gpio->trans_lock);
+ packet->item[0].index = gpio_id;
+ packet->item[0].value = config | ljca_gpio->connect_mode[gpio_id];
+ packet->num = 1;
+
+ ret = ljca_transfer(ljca_gpio->pdev, GPIO_CONFIG, packet,
+ GPIO_PAYLOAD_LEN(packet->num), NULL, NULL);
+ mutex_unlock(&ljca_gpio->trans_lock);
+ return ret;
+}
+
+static int ljca_gpio_read(struct ljca_gpio_dev *ljca_gpio, u8 gpio_id)
+{
+ struct gpio_packet *packet = (struct gpio_packet *)ljca_gpio->obuf;
+ struct gpio_packet *ack_packet;
+ int ret;
+ int ibuf_len;
+
+ if (!ljca_gpio_valid(ljca_gpio, gpio_id))
+ return -EINVAL;
+
+ mutex_lock(&ljca_gpio->trans_lock);
+ packet->num = 1;
+ packet->item[0].index = gpio_id;
+ ret = ljca_transfer(ljca_gpio->pdev, GPIO_READ, packet,
+ GPIO_PAYLOAD_LEN(packet->num), ljca_gpio->ibuf,
+ &ibuf_len);
+
+ ack_packet = (struct gpio_packet *)ljca_gpio->ibuf;
+ if (ret || !ibuf_len || ack_packet->num != packet->num) {
+ dev_err(&ljca_gpio->pdev->dev, "%s failed gpio_id:%d ret %d %d",
+ __func__, gpio_id, ret, ack_packet->num);
+ mutex_unlock(&ljca_gpio->trans_lock);
+ return -EIO;
+ }
+
+ mutex_unlock(&ljca_gpio->trans_lock);
+ return (ack_packet->item[0].value > 0) ? 1 : 0;
+}
+
+static int ljca_gpio_write(struct ljca_gpio_dev *ljca_gpio, u8 gpio_id,
+ int value)
+{
+ struct gpio_packet *packet = (struct gpio_packet *)ljca_gpio->obuf;
+ int ret;
+
+ mutex_lock(&ljca_gpio->trans_lock);
+ packet->num = 1;
+ packet->item[0].index = gpio_id;
+ packet->item[0].value = (value & 1);
+
+ ret = ljca_transfer(ljca_gpio->pdev, GPIO_WRITE, packet,
+ GPIO_PAYLOAD_LEN(packet->num), NULL, NULL);
+ mutex_unlock(&ljca_gpio->trans_lock);
+ return ret;
+}
+
+static int ljca_gpio_get_value(struct gpio_chip *chip, unsigned int offset)
+{
+ struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(chip);
+
+ return ljca_gpio_read(ljca_gpio, offset);
+}
+
+static void ljca_gpio_set_value(struct gpio_chip *chip, unsigned int offset,
+ int val)
+{
+ struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(chip);
+ int ret;
+
+ ret = ljca_gpio_write(ljca_gpio, offset, val);
+ if (ret)
+ dev_err(chip->parent,
+ "%s offset:%d val:%d set value failed %d\n", __func__,
+ offset, val, ret);
+}
+
+static int ljca_gpio_direction_input(struct gpio_chip *chip,
+ unsigned int offset)
+{
+ struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(chip);
+ u8 config = GPIO_CONF_INPUT | GPIO_CONF_CLR;
+
+ return gpio_config(ljca_gpio, offset, config);
+}
+
+static int ljca_gpio_direction_output(struct gpio_chip *chip,
+ unsigned int offset, int val)
+{
+ struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(chip);
+ u8 config = GPIO_CONF_OUTPUT | GPIO_CONF_CLR;
+ int ret;
+
+ ret = gpio_config(ljca_gpio, offset, config);
+ if (ret)
+ return ret;
+
+ ljca_gpio_set_value(chip, offset, val);
+ return 0;
+}
+
+static int ljca_gpio_set_config(struct gpio_chip *chip, unsigned int offset,
+ unsigned long config)
+{
+ struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(chip);
+
+ if (!ljca_gpio_valid(ljca_gpio, offset))
+ return -EINVAL;
+
+ ljca_gpio->connect_mode[offset] = 0;
+ switch (pinconf_to_config_param(config)) {
+ case PIN_CONFIG_BIAS_PULL_UP:
+ ljca_gpio->connect_mode[offset] |= GPIO_CONF_PULLUP;
+ break;
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ ljca_gpio->connect_mode[offset] |= GPIO_CONF_PULLDOWN;
+ break;
+ case PIN_CONFIG_DRIVE_PUSH_PULL:
+ case PIN_CONFIG_PERSIST_STATE:
+ break;
+ default:
+ return -ENOTSUPP;
+ }
+
+ return 0;
+}
+
+static int ljca_enable_irq(struct ljca_gpio_dev *ljca_gpio, int gpio_id,
+ bool enable)
+{
+ struct gpio_packet *packet = (struct gpio_packet *)ljca_gpio->obuf;
+ int ret;
+
+ mutex_lock(&ljca_gpio->trans_lock);
+ packet->num = 1;
+ packet->item[0].index = gpio_id;
+ packet->item[0].value = 0;
+
+ dev_dbg(ljca_gpio->gc.parent, "%s %d", __func__, gpio_id);
+
+ ret = ljca_transfer(ljca_gpio->pdev,
+ enable == true ? GPIO_INT_UNMASK : GPIO_INT_MASK,
+ packet, GPIO_PAYLOAD_LEN(packet->num), NULL, NULL);
+ mutex_unlock(&ljca_gpio->trans_lock);
+ return ret;
+}
+
+static void ljca_gpio_async(struct work_struct *work)
+{
+ struct ljca_gpio_dev *ljca_gpio =
+ container_of(work, struct ljca_gpio_dev, work);
+ int gpio_id;
+ int unmasked;
+
+ for_each_set_bit (gpio_id, ljca_gpio->reenable_irqs,
+ ljca_gpio->gc.ngpio) {
+ clear_bit(gpio_id, ljca_gpio->reenable_irqs);
+ unmasked = test_bit(gpio_id, ljca_gpio->unmasked_irqs);
+ if (unmasked)
+ ljca_enable_irq(ljca_gpio, gpio_id, true);
+ }
+}
+
+void ljca_gpio_event_cb(struct platform_device *pdev, u8 cmd,
+ const void *evt_data, int len)
+{
+ const struct gpio_packet *packet = evt_data;
+ struct ljca_gpio_dev *ljca_gpio = platform_get_drvdata(pdev);
+ int i;
+ int irq;
+
+ if (cmd != GPIO_INT_EVENT)
+ return;
+
+ for (i = 0; i < packet->num; i++) {
+ irq = irq_find_mapping(ljca_gpio->gc.irq.domain,
+ packet->item[i].index);
+ if (!irq) {
+ dev_err(ljca_gpio->gc.parent,
+ "gpio_id %d not mapped to IRQ\n",
+ packet->item[i].index);
+ return;
+ }
+
+ generic_handle_irq(irq);
+
+ set_bit(packet->item[i].index, ljca_gpio->reenable_irqs);
+ dev_dbg(ljca_gpio->gc.parent, "%s got one interrupt %d %d %d\n",
+ __func__, i, packet->item[i].index,
+ packet->item[i].value);
+ }
+
+ schedule_work(&ljca_gpio->work);
+}
+
+static void ljca_irq_unmask(struct irq_data *irqd)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
+ struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(gc);
+ int gpio_id = irqd_to_hwirq(irqd);
+
+ dev_dbg(ljca_gpio->gc.parent, "%s %d", __func__, gpio_id);
+ set_bit(gpio_id, ljca_gpio->unmasked_irqs);
+}
+
+static void ljca_irq_mask(struct irq_data *irqd)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
+ struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(gc);
+ int gpio_id = irqd_to_hwirq(irqd);
+
+ dev_dbg(ljca_gpio->gc.parent, "%s %d", __func__, gpio_id);
+ clear_bit(gpio_id, ljca_gpio->unmasked_irqs);
+}
+
+static int ljca_irq_set_type(struct irq_data *irqd, unsigned type)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
+ struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(gc);
+ int gpio_id = irqd_to_hwirq(irqd);
+
+ ljca_gpio->connect_mode[gpio_id] = GPIO_CONF_INTERRUPT;
+ switch (type) {
+ case IRQ_TYPE_LEVEL_HIGH:
+ ljca_gpio->connect_mode[gpio_id] |=
+ GPIO_CONF_LEVEL | GPIO_CONF_PULLUP;
+ break;
+ case IRQ_TYPE_LEVEL_LOW:
+ ljca_gpio->connect_mode[gpio_id] |=
+ GPIO_CONF_LEVEL | GPIO_CONF_PULLDOWN;
+ break;
+ case IRQ_TYPE_EDGE_BOTH:
+ break;
+ case IRQ_TYPE_EDGE_RISING:
+ ljca_gpio->connect_mode[gpio_id] |=
+ GPIO_CONF_EDGE | GPIO_CONF_PULLUP;
+ break;
+ case IRQ_TYPE_EDGE_FALLING:
+ ljca_gpio->connect_mode[gpio_id] |=
+ GPIO_CONF_EDGE | GPIO_CONF_PULLDOWN;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ dev_dbg(ljca_gpio->gc.parent, "%s %d %x\n", __func__, gpio_id,
+ ljca_gpio->connect_mode[gpio_id]);
+ return 0;
+}
+
+static void ljca_irq_bus_lock(struct irq_data *irqd)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
+ struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(gc);
+
+ mutex_lock(&ljca_gpio->irq_lock);
+}
+
+static void ljca_irq_bus_unlock(struct irq_data *irqd)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
+ struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(gc);
+ int gpio_id = irqd_to_hwirq(irqd);
+ int enabled;
+ int unmasked;
+
+ enabled = test_bit(gpio_id, ljca_gpio->enabled_irqs);
+ unmasked = test_bit(gpio_id, ljca_gpio->unmasked_irqs);
+ dev_dbg(ljca_gpio->gc.parent, "%s %d %d %d\n", __func__, gpio_id,
+ enabled, unmasked);
+
+ if (enabled != unmasked) {
+ if (unmasked) {
+ gpio_config(ljca_gpio, gpio_id, 0);
+ ljca_enable_irq(ljca_gpio, gpio_id, true);
+ set_bit(gpio_id, ljca_gpio->enabled_irqs);
+ } else {
+ ljca_enable_irq(ljca_gpio, gpio_id, false);
+ clear_bit(gpio_id, ljca_gpio->enabled_irqs);
+ }
+ }
+
+ mutex_unlock(&ljca_gpio->irq_lock);
+}
+
+static unsigned int ljca_irq_startup(struct irq_data *irqd)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
+
+ return gpiochip_lock_as_irq(gc, irqd_to_hwirq(irqd));
+}
+
+static void ljca_irq_shutdown(struct irq_data *irqd)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
+
+ gpiochip_unlock_as_irq(gc, irqd_to_hwirq(irqd));
+}
+
+static struct irq_chip ljca_gpio_irqchip = {
+ .name = "ljca-irq",
+ .irq_mask = ljca_irq_mask,
+ .irq_unmask = ljca_irq_unmask,
+ .irq_set_type = ljca_irq_set_type,
+ .irq_bus_lock = ljca_irq_bus_lock,
+ .irq_bus_sync_unlock = ljca_irq_bus_unlock,
+ .irq_startup = ljca_irq_startup,
+ .irq_shutdown = ljca_irq_shutdown,
+};
+
+static int ljca_gpio_probe(struct platform_device *pdev)
+{
+ struct ljca_gpio_dev *ljca_gpio;
+ struct ljca_platform_data *pdata = dev_get_platdata(&pdev->dev);
+ struct gpio_irq_chip *girq;
+
+ ljca_gpio = devm_kzalloc(&pdev->dev, sizeof(*ljca_gpio), GFP_KERNEL);
+ if (!ljca_gpio)
+ return -ENOMEM;
+
+ ljca_gpio->ctr_info = &pdata->gpio_info;
+ ljca_gpio->connect_mode =
+ devm_kcalloc(&pdev->dev, ljca_gpio->ctr_info->num,
+ sizeof(*ljca_gpio->connect_mode), GFP_KERNEL);
+ if (!ljca_gpio->connect_mode)
+ return -ENOMEM;
+
+ mutex_init(&ljca_gpio->irq_lock);
+ mutex_init(&ljca_gpio->trans_lock);
+ ljca_gpio->pdev = pdev;
+ ljca_gpio->gc.direction_input = ljca_gpio_direction_input;
+ ljca_gpio->gc.direction_output = ljca_gpio_direction_output;
+ ljca_gpio->gc.get = ljca_gpio_get_value;
+ ljca_gpio->gc.set = ljca_gpio_set_value;
+ ljca_gpio->gc.set_config = ljca_gpio_set_config;
+ ljca_gpio->gc.can_sleep = true;
+ ljca_gpio->gc.parent = &pdev->dev;
+
+ ljca_gpio->gc.base = -1;
+ ljca_gpio->gc.ngpio = ljca_gpio->ctr_info->num;
+ ljca_gpio->gc.label = "ljca-gpio";
+ ljca_gpio->gc.owner = THIS_MODULE;
+
+ platform_set_drvdata(pdev, ljca_gpio);
+ ljca_register_event_cb(pdev, ljca_gpio_event_cb);
+
+ girq = &ljca_gpio->gc.irq;
+ girq->chip = &ljca_gpio_irqchip;
+ girq->parent_handler = NULL;
+ girq->num_parents = 0;
+ girq->parents = NULL;
+ girq->default_type = IRQ_TYPE_NONE;
+ girq->handler = handle_simple_irq;
+
+ INIT_WORK(&ljca_gpio->work, ljca_gpio_async);
+ return devm_gpiochip_add_data(&pdev->dev, &ljca_gpio->gc, ljca_gpio);
+}
+
+static int ljca_gpio_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static struct platform_driver ljca_gpio_driver = {
+ .driver.name = "ljca-gpio",
+ .probe = ljca_gpio_probe,
+ .remove = ljca_gpio_remove,
+};
+
+module_platform_driver(ljca_gpio_driver);
+
+MODULE_AUTHOR("Ye Xiang <xiang.ye at intel.com>");
+MODULE_AUTHOR("Zhang Lixu <lixu.zhang at intel.com>");
+MODULE_DESCRIPTION("Intel La Jolla Cove Adapter USB-GPIO driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:ljca-gpio");
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index fea403431f228..906cd32485a05 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -1308,6 +1308,16 @@ config I2C_ICY
If you have a 2019 edition board with an LTC2990 sensor at address
0x4c, loading the module 'ltc2990' is sufficient to enable it.
+config I2C_LJCA
+ tristate "I2C functionality of INTEL La Jolla Cove Adapter"
+ depends on MFD_LJCA
+ help
+ If you say yes to this option, I2C functionality support of INTEL
+ La Jolla Cove Adapter (LJCA) will be included.
+
+ This driver can also be built as a module. If so, the module
+ will be called i2c-ljca.
+
config I2C_MLXCPLD
tristate "Mellanox I2C driver"
depends on X86_64 || COMPILE_TEST
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index 1336b04f40e2a..005dd321f5cff 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -137,6 +137,7 @@ obj-$(CONFIG_I2C_BRCMSTB) += i2c-brcmstb.o
obj-$(CONFIG_I2C_CROS_EC_TUNNEL) += i2c-cros-ec-tunnel.o
obj-$(CONFIG_I2C_ELEKTOR) += i2c-elektor.o
obj-$(CONFIG_I2C_ICY) += i2c-icy.o
+obj-$(CONFIG_I2C_LJCA) += i2c-ljca.o
obj-$(CONFIG_I2C_MLXBF) += i2c-mlxbf.o
obj-$(CONFIG_I2C_MLXCPLD) += i2c-mlxcpld.o
obj-$(CONFIG_I2C_OPAL) += i2c-opal.o
diff --git a/drivers/i2c/busses/i2c-ljca.c b/drivers/i2c/busses/i2c-ljca.c
new file mode 100644
index 0000000000000..3abf0df5254a8
--- /dev/null
+++ b/drivers/i2c/busses/i2c-ljca.c
@@ -0,0 +1,422 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Intel La Jolla Cove Adapter USB-I2C driver
+ *
+ * Copyright (c) 2021, Intel Corporation.
+ */
+
+#include <linux/acpi.h>
+#include <linux/i2c.h>
+#include <linux/mfd/ljca.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+/* I2C commands */
+enum i2c_cmd {
+ I2C_INIT = 1,
+ I2C_XFER,
+ I2C_START,
+ I2C_STOP,
+ I2C_READ,
+ I2C_WRITE,
+};
+
+enum i2c_address_mode {
+ I2C_ADDRESS_MODE_7BIT,
+ I2C_ADDRESS_MODE_10BIT,
+};
+
+enum xfer_type {
+ READ_XFER_TYPE,
+ WRITE_XFER_TYPE,
+};
+
+#define DEFAULT_I2C_CONTROLLER_ID 1
+#define DEFAULT_I2C_CAPACITY 0
+#define DEFAULT_I2C_INTR_PIN 0
+
+/* I2C r/w Flags */
+#define I2C_SLAVE_TRANSFER_WRITE (0)
+#define I2C_SLAVE_TRANSFER_READ (1)
+
+/* i2c init flags */
+#define I2C_INIT_FLAG_MODE_MASK (0x1 << 0)
+#define I2C_INIT_FLAG_MODE_POLLING (0x0 << 0)
+#define I2C_INIT_FLAG_MODE_INTERRUPT (0x1 << 0)
+
+#define I2C_FLAG_ADDR_16BIT (0x1 << 0)
+
+#define I2C_INIT_FLAG_FREQ_MASK (0x3 << 1)
+#define I2C_FLAG_FREQ_100K (0x0 << 1)
+#define I2C_FLAG_FREQ_400K (0x1 << 1)
+#define I2C_FLAG_FREQ_1M (0x2 << 1)
+
+/* I2C Transfer */
+struct i2c_xfer {
+ u8 id;
+ u8 slave;
+ u16 flag; /* speed, 8/16bit addr, addr increase, etc */
+ u16 addr;
+ u16 len;
+ u8 data[];
+} __packed;
+
+/* I2C raw commands: Init/Start/Read/Write/Stop */
+struct i2c_rw_packet {
+ u8 id;
+ __le16 len;
+ u8 data[];
+} __packed;
+
+#define LJCA_I2C_MAX_XFER_SIZE 256
+#define LJCA_I2C_BUF_SIZE \
+ (LJCA_I2C_MAX_XFER_SIZE + sizeof(struct i2c_rw_packet))
+
+struct ljca_i2c_dev {
+ struct platform_device *pdev;
+ struct ljca_i2c_info *ctr_info;
+ struct i2c_adapter adap;
+
+ u8 obuf[LJCA_I2C_BUF_SIZE];
+ u8 ibuf[LJCA_I2C_BUF_SIZE];
+};
+
+static u8 ljca_i2c_format_slave_addr(u8 slave_addr, enum i2c_address_mode mode)
+{
+ if (mode == I2C_ADDRESS_MODE_7BIT)
+ return slave_addr << 1;
+
+ return 0xFF;
+}
+
+static int ljca_i2c_init(struct ljca_i2c_dev *ljca_i2c, u8 id)
+{
+ struct i2c_rw_packet *w_packet = (struct i2c_rw_packet *)ljca_i2c->obuf;
+
+ memset(w_packet, 0, sizeof(*w_packet));
+ w_packet->id = id;
+ w_packet->len = cpu_to_le16(1);
+ w_packet->data[0] = I2C_FLAG_FREQ_400K;
+
+ return ljca_transfer(ljca_i2c->pdev, I2C_INIT, w_packet,
+ sizeof(*w_packet) + 1, NULL, NULL);
+}
+
+static int ljca_i2c_start(struct ljca_i2c_dev *ljca_i2c, u8 slave_addr,
+ enum xfer_type type)
+{
+ struct i2c_rw_packet *w_packet = (struct i2c_rw_packet *)ljca_i2c->obuf;
+ struct i2c_rw_packet *r_packet = (struct i2c_rw_packet *)ljca_i2c->ibuf;
+ int ret;
+ int ibuf_len;
+
+ memset(w_packet, 0, sizeof(*w_packet));
+ w_packet->id = ljca_i2c->ctr_info->id;
+ w_packet->len = cpu_to_le16(1);
+ w_packet->data[0] =
+ ljca_i2c_format_slave_addr(slave_addr, I2C_ADDRESS_MODE_7BIT);
+ w_packet->data[0] |= (type == READ_XFER_TYPE) ?
+ I2C_SLAVE_TRANSFER_READ :
+ I2C_SLAVE_TRANSFER_WRITE;
+
+ ret = ljca_transfer(ljca_i2c->pdev, I2C_START, w_packet,
+ sizeof(*w_packet) + 1, r_packet, &ibuf_len);
+
+ if (ret || ibuf_len < sizeof(*r_packet))
+ return -EIO;
+
+ if ((s16)le16_to_cpu(r_packet->len) < 0 ||
+ r_packet->id != w_packet->id) {
+ dev_err(&ljca_i2c->adap.dev,
+ "i2c start failed len:%d id:%d %d\n",
+ (s16)le16_to_cpu(r_packet->len), r_packet->id,
+ w_packet->id);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int ljca_i2c_stop(struct ljca_i2c_dev *ljca_i2c, u8 slave_addr)
+{
+ struct i2c_rw_packet *w_packet = (struct i2c_rw_packet *)ljca_i2c->obuf;
+ struct i2c_rw_packet *r_packet = (struct i2c_rw_packet *)ljca_i2c->ibuf;
+ int ret;
+ int ibuf_len;
+
+ memset(w_packet, 0, sizeof(*w_packet));
+ w_packet->id = ljca_i2c->ctr_info->id;
+ w_packet->len = cpu_to_le16(1);
+ w_packet->data[0] = 0;
+
+ ret = ljca_transfer(ljca_i2c->pdev, I2C_STOP, w_packet,
+ sizeof(*w_packet) + 1, r_packet, &ibuf_len);
+
+ if (ret || ibuf_len < sizeof(*r_packet))
+ return -EIO;
+
+ if ((s16)le16_to_cpu(r_packet->len) < 0 ||
+ r_packet->id != w_packet->id) {
+ dev_err(&ljca_i2c->adap.dev,
+ "i2c stop failed len:%d id:%d %d\n",
+ (s16)le16_to_cpu(r_packet->len), r_packet->id,
+ w_packet->id);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int ljca_i2c_pure_read(struct ljca_i2c_dev *ljca_i2c, u8 *data, int len)
+{
+ struct i2c_rw_packet *w_packet = (struct i2c_rw_packet *)ljca_i2c->obuf;
+ struct i2c_rw_packet *r_packet = (struct i2c_rw_packet *)ljca_i2c->ibuf;
+ int ibuf_len;
+ int ret;
+
+ if (len > LJCA_I2C_MAX_XFER_SIZE)
+ return -EINVAL;
+
+ memset(w_packet, 0, sizeof(*w_packet));
+ w_packet->id = ljca_i2c->ctr_info->id;
+ w_packet->len = cpu_to_le16(len);
+ ret = ljca_transfer(ljca_i2c->pdev, I2C_READ, w_packet,
+ sizeof(*w_packet) + 1, r_packet, &ibuf_len);
+ if (ret) {
+ dev_err(&ljca_i2c->adap.dev, "I2C_READ failed ret:%d\n", ret);
+ return ret;
+ }
+
+ if (ibuf_len < sizeof(*r_packet))
+ return -EIO;
+
+ if ((s16)le16_to_cpu(r_packet->len) != len ||
+ r_packet->id != w_packet->id) {
+ dev_err(&ljca_i2c->adap.dev,
+ "i2c raw read failed len:%d id:%d %d\n",
+ (s16)le16_to_cpu(r_packet->len), r_packet->id,
+ w_packet->id);
+ return -EIO;
+ }
+
+ memcpy(data, r_packet->data, len);
+
+ return 0;
+}
+
+static int ljca_i2c_read(struct ljca_i2c_dev *ljca_i2c, u8 slave_addr, u8 *data,
+ u8 len)
+{
+ int ret;
+
+ ret = ljca_i2c_start(ljca_i2c, slave_addr, READ_XFER_TYPE);
+ if (ret)
+ return ret;
+
+ ret = ljca_i2c_pure_read(ljca_i2c, data, len);
+ if (ret) {
+ dev_err(&ljca_i2c->adap.dev, "i2c raw read failed ret:%d\n",
+ ret);
+
+ return ret;
+ }
+
+ return ljca_i2c_stop(ljca_i2c, slave_addr);
+}
+
+static int ljca_i2c_pure_write(struct ljca_i2c_dev *ljca_i2c, u8 *data, u8 len)
+{
+ struct i2c_rw_packet *w_packet = (struct i2c_rw_packet *)ljca_i2c->obuf;
+ struct i2c_rw_packet *r_packet = (struct i2c_rw_packet *)ljca_i2c->ibuf;
+ int ret;
+ int ibuf_len;
+
+ if (len > LJCA_I2C_MAX_XFER_SIZE)
+ return -EINVAL;
+
+ memset(w_packet, 0, sizeof(*w_packet));
+ w_packet->id = ljca_i2c->ctr_info->id;
+ w_packet->len = cpu_to_le16(len);
+ memcpy(w_packet->data, data, len);
+
+ ret = ljca_transfer(ljca_i2c->pdev, I2C_WRITE, w_packet,
+ sizeof(*w_packet) + w_packet->len, r_packet,
+ &ibuf_len);
+
+ if (ret || ibuf_len < sizeof(*r_packet))
+ return -EIO;
+
+ if ((s16)le16_to_cpu(r_packet->len) != len ||
+ r_packet->id != w_packet->id) {
+ dev_err(&ljca_i2c->adap.dev,
+ "i2c write failed len:%d id:%d/%d\n",
+ (s16)le16_to_cpu(r_packet->len), r_packet->id,
+ w_packet->id);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int ljca_i2c_write(struct ljca_i2c_dev *ljca_i2c, u8 slave_addr,
+ u8 *data, u8 len)
+{
+ int ret;
+
+ if (!data)
+ return -EINVAL;
+
+ ret = ljca_i2c_start(ljca_i2c, slave_addr, WRITE_XFER_TYPE);
+ if (ret)
+ return ret;
+
+ ret = ljca_i2c_pure_write(ljca_i2c, data, len);
+ if (ret)
+ return ret;
+
+ return ljca_i2c_stop(ljca_i2c, slave_addr);
+}
+
+static int ljca_i2c_xfer(struct i2c_adapter *adapter, struct i2c_msg *msg,
+ int num)
+{
+ struct ljca_i2c_dev *ljca_i2c;
+ struct i2c_msg *cur_msg;
+ int i, ret;
+
+ ljca_i2c = i2c_get_adapdata(adapter);
+ if (!ljca_i2c)
+ return -EINVAL;
+
+ for (i = 0; i < num; i++) {
+ cur_msg = &msg[i];
+ dev_dbg(&adapter->dev, "i:%d msg:(%d %d)\n", i, cur_msg->flags,
+ cur_msg->len);
+ if (cur_msg->flags & I2C_M_RD)
+ ret = ljca_i2c_read(ljca_i2c, cur_msg->addr,
+ cur_msg->buf, cur_msg->len);
+
+ else
+ ret = ljca_i2c_write(ljca_i2c, cur_msg->addr,
+ cur_msg->buf, cur_msg->len);
+
+ if (ret)
+ return ret;
+ }
+
+ return num;
+}
+
+static u32 ljca_i2c_func(struct i2c_adapter *adap)
+{
+ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static const struct i2c_adapter_quirks ljca_i2c_quirks = {
+ .max_read_len = LJCA_I2C_MAX_XFER_SIZE,
+ .max_write_len = LJCA_I2C_MAX_XFER_SIZE,
+};
+
+static const struct i2c_algorithm ljca_i2c_algo = {
+ .master_xfer = ljca_i2c_xfer,
+ .functionality = ljca_i2c_func,
+};
+
+static void try_bind_acpi(struct platform_device *pdev,
+ struct ljca_i2c_dev *ljca_i2c)
+{
+ struct acpi_device *parent, *child;
+ struct acpi_device *cur = ACPI_COMPANION(&pdev->dev);
+ const char *hid1;
+ const char *uid1;
+ char uid2[2] = { 0 };
+
+ if (!cur)
+ return;
+
+ hid1 = acpi_device_hid(cur);
+ uid1 = acpi_device_uid(cur);
+ snprintf(uid2, sizeof(uid2), "%d", ljca_i2c->ctr_info->id);
+
+ dev_dbg(&pdev->dev, "hid %s uid %s new uid%s\n", hid1, uid1, uid2);
+ /*
+ * If the pdev is bound to the right acpi device, just forward it to the
+ * adapter. Otherwise, we find that of current adapter manually.
+ */
+ if (!strcmp(uid1, uid2)) {
+ ACPI_COMPANION_SET(&ljca_i2c->adap.dev, cur);
+ return;
+ }
+
+ parent = ACPI_COMPANION(pdev->dev.parent);
+ if (!parent)
+ return;
+
+ list_for_each_entry(child, &parent->children, node) {
+ if (acpi_dev_hid_uid_match(child, hid1, uid2)) {
+ ACPI_COMPANION_SET(&ljca_i2c->adap.dev, child);
+ return;
+ }
+ }
+}
+
+static int ljca_i2c_probe(struct platform_device *pdev)
+{
+ struct ljca_i2c_dev *ljca_i2c;
+ struct ljca_platform_data *pdata = dev_get_platdata(&pdev->dev);
+ int ret;
+
+ ljca_i2c = devm_kzalloc(&pdev->dev, sizeof(*ljca_i2c), GFP_KERNEL);
+ if (!ljca_i2c)
+ return -ENOMEM;
+
+ ljca_i2c->pdev = pdev;
+ ljca_i2c->ctr_info = &pdata->i2c_info;
+
+ ljca_i2c->adap.owner = THIS_MODULE;
+ ljca_i2c->adap.class = I2C_CLASS_HWMON;
+ ljca_i2c->adap.algo = &ljca_i2c_algo;
+ ljca_i2c->adap.dev.parent = &pdev->dev;
+
+ try_bind_acpi(pdev, ljca_i2c);
+
+ ljca_i2c->adap.dev.of_node = pdev->dev.of_node;
+ i2c_set_adapdata(&ljca_i2c->adap, ljca_i2c);
+ snprintf(ljca_i2c->adap.name, sizeof(ljca_i2c->adap.name), "%s-%s-%d",
+ "ljca-i2c", dev_name(pdev->dev.parent),
+ ljca_i2c->ctr_info->id);
+
+ platform_set_drvdata(pdev, ljca_i2c);
+
+ ret = ljca_i2c_init(ljca_i2c, ljca_i2c->ctr_info->id);
+ if (ret) {
+ dev_err(&pdev->dev, "i2c init failed id:%d\n",
+ ljca_i2c->ctr_info->id);
+ return -EIO;
+ }
+
+ return i2c_add_adapter(&ljca_i2c->adap);
+}
+
+static int ljca_i2c_remove(struct platform_device *pdev)
+{
+ struct ljca_i2c_dev *ljca_i2c = platform_get_drvdata(pdev);
+
+ i2c_del_adapter(&ljca_i2c->adap);
+
+ return 0;
+}
+
+static struct platform_driver ljca_i2c_driver = {
+ .driver.name = "ljca-i2c",
+ .probe = ljca_i2c_probe,
+ .remove = ljca_i2c_remove,
+};
+
+module_platform_driver(ljca_i2c_driver);
+
+MODULE_AUTHOR("Ye Xiang <xiang.ye at intel.com>");
+MODULE_AUTHOR("Zhang Lixu <lixu.zhang at intel.com>");
+MODULE_DESCRIPTION("Intel La Jolla Cove Adapter USB-I2C driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:ljca-i2c");
diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index 6157e73eef24e..53f2272554606 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -1390,6 +1390,61 @@ config VIDEO_S5C73M3
This is a V4L2 sensor driver for Samsung S5C73M3
8 Mpixel camera.
+config POWER_CTRL_LOGIC
+ tristate "power control logic driver"
+ depends on GPIO_ACPI
+ help
+ This is a power control logic driver for sensor, the design
+ depends on camera sensor connections.
+ This driver controls power by getting and using managed GPIO
+ pins from ACPI config for sensors, such as HM11B1, OV01A1S.
+
+ To compile this driver as a module, choose M here: the
+ module will be called power_ctrl_logic.
+
+config VIDEO_OV01A10
+ tristate "OmniVision OV01A10 sensor support"
+ depends on VIDEO_V4L2 && I2C
+ depends on ACPI || COMPILE_TEST
+ select MEDIA_CONTROLLER
+ select VIDEO_V4L2_SUBDEV_API
+ select V4L2_FWNODE
+ help
+ This is a Video4Linux2 sensor driver for the OmniVision
+ OV01A10 camera.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ov01a10.
+
+config VIDEO_OV01A1S
+ tristate "OmniVision OV01A1S sensor support"
+ depends on POWER_CTRL_LOGIC
+ depends on VIDEO_V4L2 && I2C
+ depends on ACPI || COMPILE_TEST
+ select MEDIA_CONTROLLER
+ select VIDEO_V4L2_SUBDEV_API
+ select V4L2_FWNODE
+ help
+ This is a Video4Linux2 sensor driver for the OmniVision
+ OV01A1S camera.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ov01a1s.
+
+config VIDEO_HM11B1
+ tristate "Himax HM11B1 sensor support"
+ depends on POWER_CTRL_LOGIC
+ depends on VIDEO_V4L2 && I2C
+ select MEDIA_CONTROLLER
+ select VIDEO_V4L2_SUBDEV_API
+ select V4L2_FWNODE
+ help
+ This is a Video4Linux2 sensor driver for the Himax
+ HM11B1 camera.
+
+ To compile this driver as a module, choose M here: the
+ module will be called hm11b1.
+
endmenu
menu "Lens drivers"
diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile
index 83268f20aa3ae..0a982ff282aef 100644
--- a/drivers/media/i2c/Makefile
+++ b/drivers/media/i2c/Makefile
@@ -134,3 +134,8 @@ obj-$(CONFIG_VIDEO_RDACM20) += rdacm20.o
obj-$(CONFIG_VIDEO_RDACM21) += rdacm21.o
obj-$(CONFIG_VIDEO_ST_MIPID02) += st-mipid02.o
obj-$(CONFIG_SDR_MAX2175) += max2175.o
+
+obj-$(CONFIG_VIDEO_HM11B1) += hm11b1.o
+obj-$(CONFIG_VIDEO_OV01A1S) += ov01a1s.o
+obj-$(CONFIG_VIDEO_OV01A10) += ov01a10.o
+obj-$(CONFIG_POWER_CTRL_LOGIC) += power_ctrl_logic.o
diff --git a/drivers/media/i2c/hm11b1.c b/drivers/media/i2c/hm11b1.c
new file mode 100644
index 0000000000000..27d5acebb73c3
--- /dev/null
+++ b/drivers/media/i2c/hm11b1.c
@@ -0,0 +1,1102 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020-2021 Intel Corporation.
+
+#include <asm/unaligned.h>
+#include <linux/acpi.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/version.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fwnode.h>
+#include "power_ctrl_logic.h"
+
+#define HM11B1_LINK_FREQ_384MHZ 384000000ULL
+#define HM11B1_SCLK 72000000LL
+#define HM11B1_MCLK 19200000
+#define HM11B1_DATA_LANES 1
+#define HM11B1_RGB_DEPTH 10
+
+#define HM11B1_REG_CHIP_ID 0x0000
+#define HM11B1_CHIP_ID 0x11B1
+
+#define HM11B1_REG_MODE_SELECT 0x0100
+#define HM11B1_MODE_STANDBY 0x00
+#define HM11B1_MODE_STREAMING 0x01
+
+/* vertical-timings from sensor */
+#define HM11B1_REG_VTS 0x3402
+#define HM11B1_VTS_DEF 0x037d
+#define HM11B1_VTS_MIN 0x0346
+#define HM11B1_VTS_MAX 0xffff
+
+/* horizontal-timings from sensor */
+#define HM11B1_REG_HTS 0x3404
+
+/* Exposure controls from sensor */
+#define HM11B1_REG_EXPOSURE 0x0202
+#define HM11B1_EXPOSURE_MIN 2
+#define HM11B1_EXPOSURE_MAX_MARGIN 2
+#define HM11B1_EXPOSURE_STEP 1
+
+/* Analog gain controls from sensor */
+#define HM11B1_REG_ANALOG_GAIN 0x0205
+#define HM11B1_REG_ANALOG_GAIN_IR 0x0206
+#define HM11B1_ANAL_GAIN_MIN 0
+#define HM11B1_ANAL_GAIN_MAX 0xFF
+#define HM11B1_ANAL_GAIN_STEP 1
+
+/* Digital gain controls from sensor */
+#define HM11B1_REG_DGTL_GAIN 0x0207
+#define HM11B1_REG_DGTL_GAIN_IR 0x0209
+#define HM11B1_DGTL_GAIN_MIN 0x0
+#define HM11B1_DGTL_GAIN_MAX 0x3FF
+#define HM11B1_DGTL_GAIN_STEP 1
+#define HM11B1_DGTL_GAIN_DEFAULT 0x100
+/* register update control */
+#define HM11B1_REG_COMMAND_UPDATE 0x104
+
+/* Test Pattern Control */
+#define HM11B1_REG_TEST_PATTERN 0x0601
+#define HM11B1_TEST_PATTERN_ENABLE 1
+#define HM11B1_TEST_PATTERN_BAR_SHIFT 1
+
+enum {
+ HM11B1_LINK_FREQ_384MHZ_INDEX,
+};
+
+struct hm11b1_reg {
+ u16 address;
+ u8 val;
+};
+
+struct hm11b1_reg_list {
+ u32 num_of_regs;
+ const struct hm11b1_reg *regs;
+};
+
+struct hm11b1_link_freq_config {
+ const struct hm11b1_reg_list reg_list;
+};
+
+struct hm11b1_mode {
+ /* Frame width in pixels */
+ u32 width;
+
+ /* Frame height in pixels */
+ u32 height;
+
+ /* Horizontal timining size */
+ u32 hts;
+
+ /* Default vertical timining size */
+ u32 vts_def;
+
+ /* Min vertical timining size */
+ u32 vts_min;
+
+ /* Link frequency needed for this resolution */
+ u32 link_freq_index;
+
+ /* Sensor register settings for this resolution */
+ const struct hm11b1_reg_list reg_list;
+};
+
+static const struct hm11b1_reg mipi_data_rate_384mbps[] = {
+};
+
+//RAW 10bit 1292x800_30fps_MIPI 384Mbps/lane
+static const struct hm11b1_reg sensor_1292x800_30fps_setting[] = {
+ {0x0103, 0x00},
+ {0x0102, 0x01},
+ {0x0202, 0x03},
+ {0x0203, 0x7C},
+ {0x0205, 0x20},
+ {0x0207, 0x01},
+ {0x0208, 0x00},
+ {0x0209, 0x01},
+ {0x020A, 0x00},
+ {0x0300, 0x91},
+ {0x0301, 0x0A},
+ {0x0302, 0x02},
+ {0x0303, 0x2E},
+ {0x0304, 0x43},
+ {0x0306, 0x00},
+ {0x0307, 0x00},
+ {0x0340, 0x03},
+ {0x0341, 0x60},
+ {0x0342, 0x05},
+ {0x0343, 0xA0},
+ {0x0344, 0x00},
+ {0x0345, 0x00},
+ {0x0346, 0x03},
+ {0x0347, 0x2F},
+ {0x0350, 0xFF},
+ {0x0351, 0x00},
+ {0x0352, 0x00},
+ {0x0370, 0x00},
+ {0x0371, 0x00},
+ {0x0380, 0x00},
+ {0x0381, 0x00},
+ {0x0382, 0x00},
+ {0x1000, 0xC3},
+ {0x1001, 0xD0},
+ {0x100A, 0x13},
+ {0x2000, 0x00},
+ {0x2061, 0x01},
+ {0x2062, 0x00},
+ {0x2063, 0xC8},
+ {0x2100, 0x03},
+ {0x2101, 0xF0},
+ {0x2102, 0xF0},
+ {0x2103, 0x01},
+ {0x2104, 0x10},
+ {0x2105, 0x10},
+ {0x2106, 0x02},
+ {0x2107, 0x0A},
+ {0x2108, 0x10},
+ {0x2109, 0x15},
+ {0x210A, 0x1A},
+ {0x210B, 0x20},
+ {0x210C, 0x08},
+ {0x210D, 0x0A},
+ {0x210E, 0x0F},
+ {0x210F, 0x12},
+ {0x2110, 0x1C},
+ {0x2111, 0x20},
+ {0x2112, 0x23},
+ {0x2113, 0x2A},
+ {0x2114, 0x30},
+ {0x2115, 0x10},
+ {0x2116, 0x00},
+ {0x2117, 0x01},
+ {0x2118, 0x00},
+ {0x2119, 0x06},
+ {0x211A, 0x00},
+ {0x211B, 0x00},
+ {0x2615, 0x08},
+ {0x2616, 0x00},
+ {0x2700, 0x01},
+ {0x2711, 0x01},
+ {0x272F, 0x01},
+ {0x2800, 0x29},
+ {0x2821, 0xCE},
+ {0x2839, 0x27},
+ {0x283A, 0x01},
+ {0x2842, 0x01},
+ {0x2843, 0x00},
+ {0x3022, 0x11},
+ {0x3024, 0x30},
+ {0x3025, 0x12},
+ {0x3026, 0x00},
+ {0x3027, 0x81},
+ {0x3028, 0x01},
+ {0x3029, 0x00},
+ {0x302A, 0x30},
+ {0x3030, 0x00},
+ {0x3032, 0x00},
+ {0x3035, 0x01},
+ {0x303E, 0x00},
+ {0x3051, 0x00},
+ {0x3082, 0x0E},
+ {0x3084, 0x0D},
+ {0x30A8, 0x03},
+ {0x30C4, 0xA0},
+ {0x30D5, 0xC1},
+ {0x30D8, 0x00},
+ {0x30D9, 0x0D},
+ {0x30DB, 0xC2},
+ {0x30DE, 0x25},
+ {0x30E1, 0xC3},
+ {0x30E4, 0x25},
+ {0x30E7, 0xC4},
+ {0x30EA, 0x25},
+ {0x30ED, 0xC5},
+ {0x30F0, 0x25},
+ {0x30F2, 0x0C},
+ {0x30F3, 0x85},
+ {0x30F6, 0x25},
+ {0x30F8, 0x0C},
+ {0x30F9, 0x05},
+ {0x30FB, 0x40},
+ {0x30FC, 0x25},
+ {0x30FD, 0x54},
+ {0x30FE, 0x0C},
+ {0x3100, 0xC2},
+ {0x3103, 0x00},
+ {0x3104, 0x2B},
+ {0x3106, 0xC3},
+ {0x3109, 0x25},
+ {0x310C, 0xC4},
+ {0x310F, 0x25},
+ {0x3112, 0xC5},
+ {0x3115, 0x25},
+ {0x3117, 0x0C},
+ {0x3118, 0x85},
+ {0x311B, 0x25},
+ {0x311D, 0x0C},
+ {0x311E, 0x05},
+ {0x3121, 0x25},
+ {0x3123, 0x0C},
+ {0x3124, 0x0D},
+ {0x3126, 0x40},
+ {0x3127, 0x25},
+ {0x3128, 0x54},
+ {0x3129, 0x0C},
+ {0x3130, 0x20},
+ {0x3134, 0x60},
+ {0x3135, 0xC2},
+ {0x3139, 0x12},
+ {0x313A, 0x07},
+ {0x313F, 0x52},
+ {0x3140, 0x34},
+ {0x3141, 0x2E},
+ {0x314F, 0x07},
+ {0x3151, 0x47},
+ {0x3153, 0xB0},
+ {0x3154, 0x4A},
+ {0x3155, 0xC0},
+ {0x3157, 0x55},
+ {0x3158, 0x01},
+ {0x3165, 0xFF},
+ {0x316B, 0x12},
+ {0x316E, 0x12},
+ {0x3176, 0x12},
+ {0x3178, 0x01},
+ {0x317C, 0x10},
+ {0x317D, 0x05},
+ {0x317F, 0x07},
+ {0x3182, 0x07},
+ {0x3183, 0x11},
+ {0x3184, 0x88},
+ {0x3186, 0x28},
+ {0x3191, 0x00},
+ {0x3192, 0x20},
+ {0x3400, 0x48},
+ {0x3401, 0x00},
+ {0x3402, 0x06},
+ {0x3403, 0xFA},
+ {0x3404, 0x05},
+ {0x3405, 0x40},
+ {0x3406, 0x00},
+ {0x3407, 0x00},
+ {0x3408, 0x03},
+ {0x3409, 0x2F},
+ {0x340A, 0x00},
+ {0x340B, 0x00},
+ {0x340C, 0x00},
+ {0x340D, 0x00},
+ {0x340E, 0x00},
+ {0x340F, 0x00},
+ {0x3410, 0x00},
+ {0x3411, 0x01},
+ {0x3412, 0x00},
+ {0x3413, 0x03},
+ {0x3414, 0xB0},
+ {0x3415, 0x4A},
+ {0x3416, 0xC0},
+ {0x3418, 0x55},
+ {0x3419, 0x03},
+ {0x341B, 0x7D},
+ {0x341C, 0x00},
+ {0x341F, 0x03},
+ {0x3420, 0x00},
+ {0x3421, 0x02},
+ {0x3422, 0x00},
+ {0x3423, 0x02},
+ {0x3424, 0x01},
+ {0x3425, 0x02},
+ {0x3426, 0x00},
+ {0x3427, 0xA2},
+ {0x3428, 0x01},
+ {0x3429, 0x06},
+ {0x342A, 0xF8},
+ {0x3440, 0x01},
+ {0x3441, 0xBE},
+ {0x3442, 0x02},
+ {0x3443, 0x18},
+ {0x3444, 0x03},
+ {0x3445, 0x0C},
+ {0x3446, 0x06},
+ {0x3447, 0x18},
+ {0x3448, 0x09},
+ {0x3449, 0x24},
+ {0x344A, 0x08},
+ {0x344B, 0x08},
+ {0x345C, 0x00},
+ {0x345D, 0x44},
+ {0x345E, 0x02},
+ {0x345F, 0x43},
+ {0x3460, 0x04},
+ {0x3461, 0x3B},
+ {0x3466, 0xF8},
+ {0x3467, 0x43},
+ {0x347D, 0x02},
+ {0x3483, 0x05},
+ {0x3484, 0x0C},
+ {0x3485, 0x03},
+ {0x3486, 0x20},
+ {0x3487, 0x00},
+ {0x3488, 0x00},
+ {0x3489, 0x00},
+ {0x348A, 0x09},
+ {0x348B, 0x00},
+ {0x348C, 0x00},
+ {0x348D, 0x02},
+ {0x348E, 0x01},
+ {0x348F, 0x40},
+ {0x3490, 0x00},
+ {0x3491, 0xC8},
+ {0x3492, 0x00},
+ {0x3493, 0x02},
+ {0x3494, 0x00},
+ {0x3495, 0x02},
+ {0x3496, 0x02},
+ {0x3497, 0x06},
+ {0x3498, 0x05},
+ {0x3499, 0x04},
+ {0x349A, 0x09},
+ {0x349B, 0x05},
+ {0x349C, 0x17},
+ {0x349D, 0x05},
+ {0x349E, 0x00},
+ {0x349F, 0x00},
+ {0x34A0, 0x00},
+ {0x34A1, 0x00},
+ {0x34A2, 0x08},
+ {0x34A3, 0x08},
+ {0x34A4, 0x00},
+ {0x34A5, 0x0B},
+ {0x34A6, 0x0C},
+ {0x34A7, 0x32},
+ {0x34A8, 0x10},
+ {0x34A9, 0xE0},
+ {0x34AA, 0x52},
+ {0x34AB, 0x00},
+ {0x34AC, 0x60},
+ {0x34AD, 0x2B},
+ {0x34AE, 0x25},
+ {0x34AF, 0x48},
+ {0x34B1, 0x06},
+ {0x34B2, 0xF8},
+ {0x34C3, 0xB0},
+ {0x34C4, 0x4A},
+ {0x34C5, 0xC0},
+ {0x34C7, 0x55},
+ {0x34C8, 0x03},
+ {0x34CB, 0x00},
+ {0x353A, 0x00},
+ {0x355E, 0x48},
+ {0x3572, 0xB0},
+ {0x3573, 0x4A},
+ {0x3574, 0xC0},
+ {0x3576, 0x55},
+ {0x3577, 0x03},
+ {0x357A, 0x00},
+ {0x35DA, 0x00},
+ {0x4003, 0x02},
+ {0x4004, 0x02},
+};
+
+static const char * const hm11b1_test_pattern_menu[] = {
+ "Disabled",
+ "Solid Color",
+ "Color Bar",
+ "Color Bar Blending",
+ "PN11",
+};
+
+static const s64 link_freq_menu_items[] = {
+ HM11B1_LINK_FREQ_384MHZ,
+};
+
+static const struct hm11b1_link_freq_config link_freq_configs[] = {
+ [HM11B1_LINK_FREQ_384MHZ_INDEX] = {
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mipi_data_rate_384mbps),
+ .regs = mipi_data_rate_384mbps,
+ }
+ },
+};
+
+static const struct hm11b1_mode supported_modes[] = {
+ {
+ .width = 1292,
+ .height = 800,
+ .hts = 1344,
+ .vts_def = HM11B1_VTS_DEF,
+ .vts_min = HM11B1_VTS_MIN,
+ .reg_list = {
+ .num_of_regs =
+ ARRAY_SIZE(sensor_1292x800_30fps_setting),
+ .regs = sensor_1292x800_30fps_setting,
+ },
+ .link_freq_index = HM11B1_LINK_FREQ_384MHZ_INDEX,
+ },
+};
+
+struct hm11b1 {
+ struct v4l2_subdev sd;
+ struct media_pad pad;
+ struct v4l2_ctrl_handler ctrl_handler;
+
+ /* V4L2 Controls */
+ struct v4l2_ctrl *link_freq;
+ struct v4l2_ctrl *pixel_rate;
+ struct v4l2_ctrl *vblank;
+ struct v4l2_ctrl *hblank;
+ struct v4l2_ctrl *exposure;
+
+ /* Current mode */
+ const struct hm11b1_mode *cur_mode;
+
+ /* To serialize asynchronus callbacks */
+ struct mutex mutex;
+
+ /* Streaming on/off */
+ bool streaming;
+};
+
+static inline struct hm11b1 *to_hm11b1(struct v4l2_subdev *subdev)
+{
+ return container_of(subdev, struct hm11b1, sd);
+}
+
+static u64 to_pixel_rate(u32 f_index)
+{
+ u64 pixel_rate = link_freq_menu_items[f_index] * 2 * HM11B1_DATA_LANES;
+
+ do_div(pixel_rate, HM11B1_RGB_DEPTH);
+
+ return pixel_rate;
+}
+
+static u64 to_pixels_per_line(u32 hts, u32 f_index)
+{
+ u64 ppl = hts * to_pixel_rate(f_index);
+
+ do_div(ppl, HM11B1_SCLK);
+
+ return ppl;
+}
+
+static int hm11b1_read_reg(struct hm11b1 *hm11b1, u16 reg, u16 len, u32 *val)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&hm11b1->sd);
+ struct i2c_msg msgs[2];
+ u8 addr_buf[2];
+ u8 data_buf[4] = {0};
+ int ret = 0;
+
+ if (len > sizeof(data_buf))
+ return -EINVAL;
+
+ put_unaligned_be16(reg, addr_buf);
+ msgs[0].addr = client->addr;
+ msgs[0].flags = 0;
+ msgs[0].len = sizeof(addr_buf);
+ msgs[0].buf = addr_buf;
+ msgs[1].addr = client->addr;
+ msgs[1].flags = I2C_M_RD;
+ msgs[1].len = len;
+ msgs[1].buf = &data_buf[sizeof(data_buf) - len];
+
+ ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
+ if (ret != ARRAY_SIZE(msgs))
+ return ret < 0 ? ret : -EIO;
+
+ *val = get_unaligned_be32(data_buf);
+
+ return 0;
+}
+
+static int hm11b1_write_reg(struct hm11b1 *hm11b1, u16 reg, u16 len, u32 val)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&hm11b1->sd);
+ u8 buf[6];
+ int ret = 0;
+
+ if (len > 4)
+ return -EINVAL;
+
+ put_unaligned_be16(reg, buf);
+ put_unaligned_be32(val << 8 * (4 - len), buf + 2);
+
+ ret = i2c_master_send(client, buf, len + 2);
+ if (ret != len + 2)
+ return ret < 0 ? ret : -EIO;
+
+ return 0;
+}
+
+static int hm11b1_write_reg_list(struct hm11b1 *hm11b1,
+ const struct hm11b1_reg_list *r_list)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&hm11b1->sd);
+ unsigned int i;
+ int ret = 0;
+
+ for (i = 0; i < r_list->num_of_regs; i++) {
+ ret = hm11b1_write_reg(hm11b1, r_list->regs[i].address, 1,
+ r_list->regs[i].val);
+ if (ret) {
+ dev_err_ratelimited(&client->dev,
+ "write reg 0x%4.4x return err = %d",
+ r_list->regs[i].address, ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int hm11b1_update_digital_gain(struct hm11b1 *hm11b1, u32 d_gain)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&hm11b1->sd);
+ int ret = 0;
+
+ ret = hm11b1_write_reg(hm11b1, HM11B1_REG_DGTL_GAIN, 2, d_gain);
+ if (ret) {
+ dev_err(&client->dev, "failed to set HM11B1_REG_DGTL_GAIN");
+ return ret;
+ }
+
+ ret = hm11b1_write_reg(hm11b1, HM11B1_REG_DGTL_GAIN_IR, 2, d_gain);
+ if (ret) {
+ dev_err(&client->dev, "failed to set HM11B1_REG_DGTL_GAIN_IR");
+ return ret;
+ }
+
+ return ret;
+}
+
+static int hm11b1_test_pattern(struct hm11b1 *hm11b1, u32 pattern)
+{
+ if (pattern)
+ pattern = pattern << HM11B1_TEST_PATTERN_BAR_SHIFT |
+ HM11B1_TEST_PATTERN_ENABLE;
+
+ return hm11b1_write_reg(hm11b1, HM11B1_REG_TEST_PATTERN, 1, pattern);
+}
+
+static int hm11b1_set_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct hm11b1 *hm11b1 = container_of(ctrl->handler,
+ struct hm11b1, ctrl_handler);
+ struct i2c_client *client = v4l2_get_subdevdata(&hm11b1->sd);
+ s64 exposure_max;
+ int ret = 0;
+
+ /* Propagate change of current control to all related controls */
+ if (ctrl->id == V4L2_CID_VBLANK) {
+ /* Update max exposure while meeting expected vblanking */
+ exposure_max = hm11b1->cur_mode->height + ctrl->val -
+ HM11B1_EXPOSURE_MAX_MARGIN;
+ __v4l2_ctrl_modify_range(hm11b1->exposure,
+ hm11b1->exposure->minimum,
+ exposure_max, hm11b1->exposure->step,
+ exposure_max);
+ }
+
+ /* V4L2 controls values will be applied only when power is already up */
+ if (!pm_runtime_get_if_in_use(&client->dev))
+ return 0;
+
+ ret = hm11b1_write_reg(hm11b1, HM11B1_REG_COMMAND_UPDATE, 1, 1);
+ if (ret) {
+ dev_err(&client->dev, "failed to enable HM11B1_REG_COMMAND_UPDATE");
+ pm_runtime_put(&client->dev);
+ return ret;
+ }
+ switch (ctrl->id) {
+ case V4L2_CID_ANALOGUE_GAIN:
+ ret = hm11b1_write_reg(hm11b1, HM11B1_REG_ANALOG_GAIN, 1,
+ ctrl->val);
+ ret |= hm11b1_write_reg(hm11b1, HM11B1_REG_ANALOG_GAIN_IR, 1,
+ ctrl->val);
+ break;
+
+ case V4L2_CID_DIGITAL_GAIN:
+ ret = hm11b1_update_digital_gain(hm11b1, ctrl->val);
+ break;
+
+ case V4L2_CID_EXPOSURE:
+ /* 4 least significant bits of expsoure are fractional part */
+ ret = hm11b1_write_reg(hm11b1, HM11B1_REG_EXPOSURE, 2,
+ ctrl->val);
+ break;
+
+ case V4L2_CID_VBLANK:
+ ret = hm11b1_write_reg(hm11b1, HM11B1_REG_VTS, 2,
+ hm11b1->cur_mode->height + ctrl->val);
+ break;
+
+ case V4L2_CID_TEST_PATTERN:
+ ret = hm11b1_test_pattern(hm11b1, ctrl->val);
+ break;
+
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ ret |= hm11b1_write_reg(hm11b1, HM11B1_REG_COMMAND_UPDATE, 1, 0);
+ pm_runtime_put(&client->dev);
+
+ return ret;
+}
+
+static const struct v4l2_ctrl_ops hm11b1_ctrl_ops = {
+ .s_ctrl = hm11b1_set_ctrl,
+};
+
+static int hm11b1_init_controls(struct hm11b1 *hm11b1)
+{
+ struct v4l2_ctrl_handler *ctrl_hdlr;
+ const struct hm11b1_mode *cur_mode;
+ s64 exposure_max, h_blank, pixel_rate;
+ u32 vblank_min, vblank_max, vblank_default;
+ int size;
+ int ret = 0;
+
+ ctrl_hdlr = &hm11b1->ctrl_handler;
+ ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8);
+ if (ret)
+ return ret;
+
+ ctrl_hdlr->lock = &hm11b1->mutex;
+ cur_mode = hm11b1->cur_mode;
+ size = ARRAY_SIZE(link_freq_menu_items);
+
+ hm11b1->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, &hm11b1_ctrl_ops,
+ V4L2_CID_LINK_FREQ,
+ size - 1, 0,
+ link_freq_menu_items);
+ if (hm11b1->link_freq)
+ hm11b1->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ pixel_rate = to_pixel_rate(HM11B1_LINK_FREQ_384MHZ_INDEX);
+ hm11b1->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &hm11b1_ctrl_ops,
+ V4L2_CID_PIXEL_RATE, 0,
+ pixel_rate, 1, pixel_rate);
+
+ vblank_min = cur_mode->vts_min - cur_mode->height;
+ vblank_max = HM11B1_VTS_MAX - cur_mode->height;
+ vblank_default = cur_mode->vts_def - cur_mode->height;
+ hm11b1->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &hm11b1_ctrl_ops,
+ V4L2_CID_VBLANK, vblank_min,
+ vblank_max, 1, vblank_default);
+
+ h_blank = to_pixels_per_line(cur_mode->hts, cur_mode->link_freq_index);
+ h_blank -= cur_mode->width;
+ hm11b1->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &hm11b1_ctrl_ops,
+ V4L2_CID_HBLANK, h_blank, h_blank, 1,
+ h_blank);
+ if (hm11b1->hblank)
+ hm11b1->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ v4l2_ctrl_new_std(ctrl_hdlr, &hm11b1_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
+ HM11B1_ANAL_GAIN_MIN, HM11B1_ANAL_GAIN_MAX,
+ HM11B1_ANAL_GAIN_STEP, HM11B1_ANAL_GAIN_MIN);
+ v4l2_ctrl_new_std(ctrl_hdlr, &hm11b1_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
+ HM11B1_DGTL_GAIN_MIN, HM11B1_DGTL_GAIN_MAX,
+ HM11B1_DGTL_GAIN_STEP, HM11B1_DGTL_GAIN_DEFAULT);
+ exposure_max = cur_mode->vts_def - HM11B1_EXPOSURE_MAX_MARGIN;
+ hm11b1->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &hm11b1_ctrl_ops,
+ V4L2_CID_EXPOSURE,
+ HM11B1_EXPOSURE_MIN, exposure_max,
+ HM11B1_EXPOSURE_STEP,
+ exposure_max);
+ v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &hm11b1_ctrl_ops,
+ V4L2_CID_TEST_PATTERN,
+ ARRAY_SIZE(hm11b1_test_pattern_menu) - 1,
+ 0, 0, hm11b1_test_pattern_menu);
+ if (ctrl_hdlr->error)
+ return ctrl_hdlr->error;
+
+ hm11b1->sd.ctrl_handler = ctrl_hdlr;
+
+ return 0;
+}
+
+static void hm11b1_update_pad_format(const struct hm11b1_mode *mode,
+ struct v4l2_mbus_framefmt *fmt)
+{
+ fmt->width = mode->width;
+ fmt->height = mode->height;
+ fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
+ fmt->field = V4L2_FIELD_NONE;
+}
+
+static int hm11b1_start_streaming(struct hm11b1 *hm11b1)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&hm11b1->sd);
+ const struct hm11b1_reg_list *reg_list;
+ int link_freq_index;
+ int ret = 0;
+
+ power_ctrl_logic_set_power(1);
+ link_freq_index = hm11b1->cur_mode->link_freq_index;
+ reg_list = &link_freq_configs[link_freq_index].reg_list;
+ ret = hm11b1_write_reg_list(hm11b1, reg_list);
+ if (ret) {
+ dev_err(&client->dev, "failed to set plls");
+ return ret;
+ }
+
+ reg_list = &hm11b1->cur_mode->reg_list;
+ ret = hm11b1_write_reg_list(hm11b1, reg_list);
+ if (ret) {
+ dev_err(&client->dev, "failed to set mode");
+ return ret;
+ }
+
+ ret = __v4l2_ctrl_handler_setup(hm11b1->sd.ctrl_handler);
+ if (ret)
+ return ret;
+
+ ret = hm11b1_write_reg(hm11b1, HM11B1_REG_MODE_SELECT, 1,
+ HM11B1_MODE_STREAMING);
+ if (ret)
+ dev_err(&client->dev, "failed to start streaming");
+
+ return ret;
+}
+
+static void hm11b1_stop_streaming(struct hm11b1 *hm11b1)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&hm11b1->sd);
+
+ if (hm11b1_write_reg(hm11b1, HM11B1_REG_MODE_SELECT, 1,
+ HM11B1_MODE_STANDBY))
+ dev_err(&client->dev, "failed to stop streaming");
+ power_ctrl_logic_set_power(0);
+}
+
+static int hm11b1_set_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct hm11b1 *hm11b1 = to_hm11b1(sd);
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ int ret = 0;
+
+ if (hm11b1->streaming == enable)
+ return 0;
+
+ mutex_lock(&hm11b1->mutex);
+ if (enable) {
+ ret = pm_runtime_get_sync(&client->dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(&client->dev);
+ mutex_unlock(&hm11b1->mutex);
+ return ret;
+ }
+
+ ret = hm11b1_start_streaming(hm11b1);
+ if (ret) {
+ enable = 0;
+ hm11b1_stop_streaming(hm11b1);
+ pm_runtime_put(&client->dev);
+ }
+ } else {
+ hm11b1_stop_streaming(hm11b1);
+ pm_runtime_put(&client->dev);
+ }
+
+ hm11b1->streaming = enable;
+ mutex_unlock(&hm11b1->mutex);
+
+ return ret;
+}
+
+static int __maybe_unused hm11b1_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct hm11b1 *hm11b1 = to_hm11b1(sd);
+
+ mutex_lock(&hm11b1->mutex);
+ if (hm11b1->streaming)
+ hm11b1_stop_streaming(hm11b1);
+
+ mutex_unlock(&hm11b1->mutex);
+
+ return 0;
+}
+
+static int __maybe_unused hm11b1_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct hm11b1 *hm11b1 = to_hm11b1(sd);
+ int ret = 0;
+
+ mutex_lock(&hm11b1->mutex);
+ if (!hm11b1->streaming)
+ goto exit;
+
+ ret = hm11b1_start_streaming(hm11b1);
+ if (ret) {
+ hm11b1->streaming = false;
+ hm11b1_stop_streaming(hm11b1);
+ }
+
+exit:
+ mutex_unlock(&hm11b1->mutex);
+ return ret;
+}
+
+static int hm11b1_set_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct hm11b1 *hm11b1 = to_hm11b1(sd);
+ const struct hm11b1_mode *mode;
+ s32 vblank_def, h_blank;
+
+ mode = v4l2_find_nearest_size(supported_modes,
+ ARRAY_SIZE(supported_modes), width,
+ height, fmt->format.width,
+ fmt->format.height);
+
+ mutex_lock(&hm11b1->mutex);
+ hm11b1_update_pad_format(mode, &fmt->format);
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+ *v4l2_subdev_get_try_format(sd, sd_state, fmt->pad) = fmt->format;
+ } else {
+ hm11b1->cur_mode = mode;
+ __v4l2_ctrl_s_ctrl(hm11b1->link_freq, mode->link_freq_index);
+ __v4l2_ctrl_s_ctrl_int64(hm11b1->pixel_rate,
+ to_pixel_rate(mode->link_freq_index));
+
+ /* Update limits and set FPS to default */
+ vblank_def = mode->vts_def - mode->height;
+ __v4l2_ctrl_modify_range(hm11b1->vblank,
+ mode->vts_min - mode->height,
+ HM11B1_VTS_MAX - mode->height, 1,
+ vblank_def);
+ __v4l2_ctrl_s_ctrl(hm11b1->vblank, vblank_def);
+ h_blank = to_pixels_per_line(mode->hts, mode->link_freq_index) -
+ mode->width;
+ __v4l2_ctrl_modify_range(hm11b1->hblank, h_blank, h_blank, 1,
+ h_blank);
+ }
+ mutex_unlock(&hm11b1->mutex);
+
+ return 0;
+}
+
+static int hm11b1_get_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct hm11b1 *hm11b1 = to_hm11b1(sd);
+
+ mutex_lock(&hm11b1->mutex);
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
+ fmt->format = *v4l2_subdev_get_try_format(&hm11b1->sd,
+ sd_state, fmt->pad);
+ else
+ hm11b1_update_pad_format(hm11b1->cur_mode, &fmt->format);
+
+ mutex_unlock(&hm11b1->mutex);
+
+ return 0;
+}
+
+static int hm11b1_enum_mbus_code(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_mbus_code_enum *code)
+{
+ if (code->index > 0)
+ return -EINVAL;
+
+ code->code = MEDIA_BUS_FMT_SGRBG10_1X10;
+
+ return 0;
+}
+
+static int hm11b1_enum_frame_size(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_frame_size_enum *fse)
+{
+ if (fse->index >= ARRAY_SIZE(supported_modes))
+ return -EINVAL;
+
+ if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10)
+ return -EINVAL;
+
+ fse->min_width = supported_modes[fse->index].width;
+ fse->max_width = fse->min_width;
+ fse->min_height = supported_modes[fse->index].height;
+ fse->max_height = fse->min_height;
+
+ return 0;
+}
+
+static int hm11b1_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+ struct hm11b1 *hm11b1 = to_hm11b1(sd);
+
+ mutex_lock(&hm11b1->mutex);
+ hm11b1_update_pad_format(&supported_modes[0],
+ v4l2_subdev_get_try_format(sd, fh->state, 0));
+ mutex_unlock(&hm11b1->mutex);
+
+ return 0;
+}
+
+static const struct v4l2_subdev_video_ops hm11b1_video_ops = {
+ .s_stream = hm11b1_set_stream,
+};
+
+static const struct v4l2_subdev_pad_ops hm11b1_pad_ops = {
+ .set_fmt = hm11b1_set_format,
+ .get_fmt = hm11b1_get_format,
+ .enum_mbus_code = hm11b1_enum_mbus_code,
+ .enum_frame_size = hm11b1_enum_frame_size,
+};
+
+static const struct v4l2_subdev_ops hm11b1_subdev_ops = {
+ .video = &hm11b1_video_ops,
+ .pad = &hm11b1_pad_ops,
+};
+
+static const struct media_entity_operations hm11b1_subdev_entity_ops = {
+ .link_validate = v4l2_subdev_link_validate,
+};
+
+static const struct v4l2_subdev_internal_ops hm11b1_internal_ops = {
+ .open = hm11b1_open,
+};
+
+static int hm11b1_identify_module(struct hm11b1 *hm11b1)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&hm11b1->sd);
+ int ret;
+ u32 val;
+
+ ret = hm11b1_read_reg(hm11b1, HM11B1_REG_CHIP_ID, 2, &val);
+ if (ret)
+ return ret;
+
+ if (val != HM11B1_CHIP_ID) {
+ dev_err(&client->dev, "chip id mismatch: %x!=%x",
+ HM11B1_CHIP_ID, val);
+ return -ENXIO;
+ }
+
+ return 0;
+}
+
+static int hm11b1_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct hm11b1 *hm11b1 = to_hm11b1(sd);
+
+ v4l2_async_unregister_subdev(sd);
+ media_entity_cleanup(&sd->entity);
+ v4l2_ctrl_handler_free(sd->ctrl_handler);
+ pm_runtime_disable(&client->dev);
+ mutex_destroy(&hm11b1->mutex);
+
+ return 0;
+}
+
+static int hm11b1_probe(struct i2c_client *client)
+{
+ struct hm11b1 *hm11b1;
+ int ret = 0;
+
+ hm11b1 = devm_kzalloc(&client->dev, sizeof(*hm11b1), GFP_KERNEL);
+ if (!hm11b1)
+ return -ENOMEM;
+
+ v4l2_i2c_subdev_init(&hm11b1->sd, client, &hm11b1_subdev_ops);
+ power_ctrl_logic_set_power(0);
+ power_ctrl_logic_set_power(1);
+ ret = hm11b1_identify_module(hm11b1);
+ if (ret) {
+ dev_err(&client->dev, "failed to find sensor: %d", ret);
+ return ret;
+ }
+
+ mutex_init(&hm11b1->mutex);
+ hm11b1->cur_mode = &supported_modes[0];
+ ret = hm11b1_init_controls(hm11b1);
+ if (ret) {
+ dev_err(&client->dev, "failed to init controls: %d", ret);
+ goto probe_error_v4l2_ctrl_handler_free;
+ }
+
+ hm11b1->sd.internal_ops = &hm11b1_internal_ops;
+ hm11b1->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+ hm11b1->sd.entity.ops = &hm11b1_subdev_entity_ops;
+ hm11b1->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
+ hm11b1->pad.flags = MEDIA_PAD_FL_SOURCE;
+ ret = media_entity_pads_init(&hm11b1->sd.entity, 1, &hm11b1->pad);
+ if (ret) {
+ dev_err(&client->dev, "failed to init entity pads: %d", ret);
+ goto probe_error_v4l2_ctrl_handler_free;
+ }
+
+ ret = v4l2_async_register_subdev_sensor(&hm11b1->sd);
+ if (ret < 0) {
+ dev_err(&client->dev, "failed to register V4L2 subdev: %d",
+ ret);
+ goto probe_error_media_entity_cleanup;
+ }
+
+ /*
+ * Device is already turned on by i2c-core with ACPI domain PM.
+ * Enable runtime PM and turn off the device.
+ */
+ pm_runtime_set_active(&client->dev);
+ pm_runtime_enable(&client->dev);
+ pm_runtime_idle(&client->dev);
+
+ power_ctrl_logic_set_power(0);
+ return 0;
+
+probe_error_media_entity_cleanup:
+ media_entity_cleanup(&hm11b1->sd.entity);
+
+probe_error_v4l2_ctrl_handler_free:
+ v4l2_ctrl_handler_free(hm11b1->sd.ctrl_handler);
+ mutex_destroy(&hm11b1->mutex);
+
+ return ret;
+}
+
+static const struct dev_pm_ops hm11b1_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(hm11b1_suspend, hm11b1_resume)
+};
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id hm11b1_acpi_ids[] = {
+ {"HIMX11B1"},
+ {}
+};
+
+MODULE_DEVICE_TABLE(acpi, hm11b1_acpi_ids);
+#endif
+
+static struct i2c_driver hm11b1_i2c_driver = {
+ .driver = {
+ .name = "hm11b1",
+ .pm = &hm11b1_pm_ops,
+ .acpi_match_table = ACPI_PTR(hm11b1_acpi_ids),
+ },
+ .probe_new = hm11b1_probe,
+ .remove = hm11b1_remove,
+};
+
+module_i2c_driver(hm11b1_i2c_driver);
+
+MODULE_AUTHOR("Qiu, Tianshu <tian.shu.qiu at intel.com>");
+MODULE_AUTHOR("Shawn Tu <shawnx.tu at intel.com>");
+MODULE_AUTHOR("Bingbu Cao <bingbu.cao at intel.com>");
+MODULE_AUTHOR("Lai, Jim <jim.lai at intel.com>");
+MODULE_DESCRIPTION("Himax HM11B1 sensor driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/media/i2c/ov01a10.c b/drivers/media/i2c/ov01a10.c
new file mode 100644
index 0000000000000..54968bbe15980
--- /dev/null
+++ b/drivers/media/i2c/ov01a10.c
@@ -0,0 +1,934 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020-2021 Intel Corporation.
+
+#include <asm/unaligned.h>
+#include <linux/acpi.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/version.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fwnode.h>
+#include <linux/vsc.h>
+
+#define OV01A10_LINK_FREQ_400MHZ 400000000ULL
+#define OV01A10_SCLK 40000000LL
+#define OV01A10_MCLK 19200000
+#define OV01A10_DATA_LANES 1
+#define OV01A10_RGB_DEPTH 10
+
+#define OV01A10_REG_CHIP_ID 0x300a
+#define OV01A10_CHIP_ID 0x560141
+
+#define OV01A10_REG_MODE_SELECT 0x0100
+#define OV01A10_MODE_STANDBY 0x00
+#define OV01A10_MODE_STREAMING 0x01
+
+/* vertical-timings from sensor */
+#define OV01A10_REG_VTS 0x380e
+#define OV01A10_VTS_DEF 0x0380
+#define OV01A10_VTS_MIN 0x0380
+#define OV01A10_VTS_MAX 0xffff
+
+/* Exposure controls from sensor */
+#define OV01A10_REG_EXPOSURE 0x3501
+#define OV01A10_EXPOSURE_MIN 4
+#define OV01A10_EXPOSURE_MAX_MARGIN 8
+#define OV01A10_EXPOSURE_STEP 1
+
+/* Analog gain controls from sensor */
+#define OV01A10_REG_ANALOG_GAIN 0x3508
+#define OV01A10_ANAL_GAIN_MIN 0x100
+#define OV01A10_ANAL_GAIN_MAX 0xffff
+#define OV01A10_ANAL_GAIN_STEP 1
+
+/* Digital gain controls from sensor */
+#define OV01A10_REG_DIGILAL_GAIN_B 0x350A
+#define OV01A10_REG_DIGITAL_GAIN_GB 0x3510
+#define OV01A10_REG_DIGITAL_GAIN_GR 0x3513
+#define OV01A10_REG_DIGITAL_GAIN_R 0x3516
+#define OV01A10_DGTL_GAIN_MIN 0
+#define OV01A10_DGTL_GAIN_MAX 0x3ffff
+#define OV01A10_DGTL_GAIN_STEP 1
+#define OV01A10_DGTL_GAIN_DEFAULT 1024
+
+/* Test Pattern Control */
+#define OV01A10_REG_TEST_PATTERN 0x4503
+#define OV01A10_TEST_PATTERN_ENABLE BIT(7)
+#define OV01A10_TEST_PATTERN_BAR_SHIFT 0
+
+enum {
+ OV01A10_LINK_FREQ_400MHZ_INDEX,
+};
+
+struct ov01a10_reg {
+ u16 address;
+ u8 val;
+};
+
+struct ov01a10_reg_list {
+ u32 num_of_regs;
+ const struct ov01a10_reg *regs;
+};
+
+struct ov01a10_link_freq_config {
+ const struct ov01a10_reg_list reg_list;
+};
+
+struct ov01a10_mode {
+ /* Frame width in pixels */
+ u32 width;
+
+ /* Frame height in pixels */
+ u32 height;
+
+ /* Horizontal timining size */
+ u32 hts;
+
+ /* Default vertical timining size */
+ u32 vts_def;
+
+ /* Min vertical timining size */
+ u32 vts_min;
+
+ /* Link frequency needed for this resolution */
+ u32 link_freq_index;
+
+ /* Sensor register settings for this resolution */
+ const struct ov01a10_reg_list reg_list;
+};
+
+static const struct ov01a10_reg mipi_data_rate_720mbps[] = {
+};
+
+static const struct ov01a10_reg sensor_1280x800_setting[] = {
+ {0x0103, 0x01},
+ {0x0302, 0x00},
+ {0x0303, 0x06},
+ {0x0304, 0x01},
+ {0x0305, 0xe0},
+ {0x0306, 0x00},
+ {0x0308, 0x01},
+ {0x0309, 0x00},
+ {0x030c, 0x01},
+ {0x0322, 0x01},
+ {0x0323, 0x06},
+ {0x0324, 0x01},
+ {0x0325, 0x68},
+ {0x3002, 0xa1},
+ {0x301e, 0xf0},
+ {0x3022, 0x01},
+ {0x3501, 0x03},
+ {0x3502, 0x78},
+ {0x3504, 0x0c},
+ {0x3508, 0x01},
+ {0x3509, 0x00},
+ {0x3601, 0xc0},
+ {0x3603, 0x71},
+ {0x3610, 0x68},
+ {0x3611, 0x86},
+ {0x3640, 0x10},
+ {0x3641, 0x80},
+ {0x3642, 0xdc},
+ {0x3646, 0x55},
+ {0x3647, 0x57},
+ {0x364b, 0x00},
+ {0x3653, 0x10},
+ {0x3655, 0x00},
+ {0x3656, 0x00},
+ {0x365f, 0x0f},
+ {0x3661, 0x45},
+ {0x3662, 0x24},
+ {0x3663, 0x11},
+ {0x3664, 0x07},
+ {0x3709, 0x34},
+ {0x370b, 0x6f},
+ {0x3714, 0x22},
+ {0x371b, 0x27},
+ {0x371c, 0x67},
+ {0x371d, 0xa7},
+ {0x371e, 0xe7},
+ {0x3730, 0x81},
+ {0x3733, 0x10},
+ {0x3734, 0x40},
+ {0x3737, 0x04},
+ {0x3739, 0x1c},
+ {0x3767, 0x00},
+ {0x376c, 0x81},
+ {0x3772, 0x14},
+ {0x37c2, 0x04},
+ {0x37d8, 0x03},
+ {0x37d9, 0x0c},
+ {0x37e0, 0x00},
+ {0x37e1, 0x08},
+ {0x37e2, 0x10},
+ {0x37e3, 0x04},
+ {0x37e4, 0x04},
+ {0x37e5, 0x03},
+ {0x37e6, 0x04},
+ {0x3800, 0x00},
+ {0x3801, 0x00},
+ {0x3802, 0x00},
+ {0x3803, 0x00},
+ {0x3804, 0x05},
+ {0x3805, 0x0f},
+ {0x3806, 0x03},
+ {0x3807, 0x2f},
+ {0x3808, 0x05},
+ {0x3809, 0x00},
+ {0x380a, 0x03},
+ {0x380b, 0x20},
+ {0x380c, 0x02},
+ {0x380d, 0xe8},
+ {0x380e, 0x03},
+ {0x380f, 0x80},
+ {0x3810, 0x00},
+ {0x3811, 0x09},
+ {0x3812, 0x00},
+ {0x3813, 0x08},
+ {0x3814, 0x01},
+ {0x3815, 0x01},
+ {0x3816, 0x01},
+ {0x3817, 0x01},
+ {0x3820, 0xa8},
+ {0x3822, 0x13},
+ {0x3832, 0x28},
+ {0x3833, 0x10},
+ {0x3b00, 0x00},
+ {0x3c80, 0x00},
+ {0x3c88, 0x02},
+ {0x3c8c, 0x07},
+ {0x3c8d, 0x40},
+ {0x3cc7, 0x80},
+ {0x4000, 0xc3},
+ {0x4001, 0xe0},
+ {0x4003, 0x40},
+ {0x4008, 0x02},
+ {0x4009, 0x19},
+ {0x400a, 0x01},
+ {0x400b, 0x6c},
+ {0x4011, 0x00},
+ {0x4041, 0x00},
+ {0x4300, 0xff},
+ {0x4301, 0x00},
+ {0x4302, 0x0f},
+ {0x4503, 0x00},
+ {0x4601, 0x50},
+ {0x4800, 0x64},
+ {0x481f, 0x34},
+ {0x4825, 0x33},
+ {0x4837, 0x11},
+ {0x4881, 0x40},
+ {0x4883, 0x01},
+ {0x4890, 0x00},
+ {0x4901, 0x00},
+ {0x4902, 0x00},
+ {0x4b00, 0x2a},
+ {0x4b0d, 0x00},
+ {0x450a, 0x04},
+ {0x450b, 0x00},
+ {0x5000, 0x65},
+ {0x5200, 0x18},
+ {0x5004, 0x00},
+ {0x5080, 0x40},
+ {0x0305, 0xf4},
+ {0x0325, 0xc2},
+ {0x380c, 0x05},
+ {0x380d, 0xd0},
+};
+
+static const char * const ov01a10_test_pattern_menu[] = {
+ "Disabled",
+ "Color Bar",
+ "Top-Bottom Darker Color Bar",
+ "Right-Left Darker Color Bar",
+ "Color Bar type 4",
+};
+
+static const s64 link_freq_menu_items[] = {
+ OV01A10_LINK_FREQ_400MHZ,
+};
+
+static const struct ov01a10_link_freq_config link_freq_configs[] = {
+ [OV01A10_LINK_FREQ_400MHZ_INDEX] = {
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mipi_data_rate_720mbps),
+ .regs = mipi_data_rate_720mbps,
+ }
+ },
+};
+
+static const struct ov01a10_mode supported_modes[] = {
+ {
+ .width = 1280,
+ .height = 800,
+ .hts = 1488,
+ .vts_def = OV01A10_VTS_DEF,
+ .vts_min = OV01A10_VTS_MIN,
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(sensor_1280x800_setting),
+ .regs = sensor_1280x800_setting,
+ },
+ .link_freq_index = OV01A10_LINK_FREQ_400MHZ_INDEX,
+ },
+};
+
+struct ov01a10 {
+ struct v4l2_subdev sd;
+ struct media_pad pad;
+ struct v4l2_ctrl_handler ctrl_handler;
+
+ /* V4L2 Controls */
+ struct v4l2_ctrl *link_freq;
+ struct v4l2_ctrl *pixel_rate;
+ struct v4l2_ctrl *vblank;
+ struct v4l2_ctrl *hblank;
+ struct v4l2_ctrl *exposure;
+
+ /* Current mode */
+ const struct ov01a10_mode *cur_mode;
+
+ /* To serialize asynchronus callbacks */
+ struct mutex mutex;
+
+ /* Streaming on/off */
+ bool streaming;
+};
+
+static inline struct ov01a10 *to_ov01a10(struct v4l2_subdev *subdev)
+{
+ return container_of(subdev, struct ov01a10, sd);
+}
+
+static int ov01a10_read_reg(struct ov01a10 *ov01a10, u16 reg, u16 len, u32 *val)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov01a10->sd);
+ struct i2c_msg msgs[2];
+ u8 addr_buf[2];
+ u8 data_buf[4] = {0};
+ int ret = 0;
+
+ if (len > sizeof(data_buf))
+ return -EINVAL;
+
+ put_unaligned_be16(reg, addr_buf);
+ msgs[0].addr = client->addr;
+ msgs[0].flags = 0;
+ msgs[0].len = sizeof(addr_buf);
+ msgs[0].buf = addr_buf;
+ msgs[1].addr = client->addr;
+ msgs[1].flags = I2C_M_RD;
+ msgs[1].len = len;
+ msgs[1].buf = &data_buf[sizeof(data_buf) - len];
+
+ ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
+
+ if (ret != ARRAY_SIZE(msgs))
+ return ret < 0 ? ret : -EIO;
+
+ *val = get_unaligned_be32(data_buf);
+
+ return 0;
+}
+
+static int ov01a10_write_reg(struct ov01a10 *ov01a10, u16 reg, u16 len, u32 val)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov01a10->sd);
+ u8 buf[6];
+ int ret = 0;
+
+ if (len > 4)
+ return -EINVAL;
+
+ put_unaligned_be16(reg, buf);
+ put_unaligned_be32(val << 8 * (4 - len), buf + 2);
+
+ ret = i2c_master_send(client, buf, len + 2);
+ if (ret != len + 2)
+ return ret < 0 ? ret : -EIO;
+
+ return 0;
+}
+
+static int ov01a10_write_reg_list(struct ov01a10 *ov01a10,
+ const struct ov01a10_reg_list *r_list)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov01a10->sd);
+ unsigned int i;
+ int ret = 0;
+
+ for (i = 0; i < r_list->num_of_regs; i++) {
+ ret = ov01a10_write_reg(ov01a10, r_list->regs[i].address, 1,
+ r_list->regs[i].val);
+ if (ret) {
+ dev_err_ratelimited(&client->dev,
+ "write reg 0x%4.4x return err = %d",
+ r_list->regs[i].address, ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int ov01a10_update_digital_gain(struct ov01a10 *ov01a10, u32 d_gain)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov01a10->sd);
+ u32 real = d_gain << 6;
+ int ret = 0;
+
+ ret = ov01a10_write_reg(ov01a10, OV01A10_REG_DIGILAL_GAIN_B, 3, real);
+ if (ret) {
+ dev_err(&client->dev, "failed to set OV01A10_REG_DIGITAL_GAIN_B");
+ return ret;
+ }
+ ret = ov01a10_write_reg(ov01a10, OV01A10_REG_DIGITAL_GAIN_GB, 3, real);
+ if (ret) {
+ dev_err(&client->dev, "failed to set OV01A10_REG_DIGITAL_GAIN_GB");
+ return ret;
+ }
+ ret = ov01a10_write_reg(ov01a10, OV01A10_REG_DIGITAL_GAIN_GR, 3, real);
+ if (ret) {
+ dev_err(&client->dev, "failed to set OV01A10_REG_DIGITAL_GAIN_GR");
+ return ret;
+ }
+
+ ret = ov01a10_write_reg(ov01a10, OV01A10_REG_DIGITAL_GAIN_R, 3, real);
+ if (ret) {
+ dev_err(&client->dev, "failed to set OV01A10_REG_DIGITAL_GAIN_R");
+ return ret;
+ }
+ return ret;
+}
+
+static int ov01a10_test_pattern(struct ov01a10 *ov01a10, u32 pattern)
+{
+ if (pattern)
+ pattern = (pattern - 1) << OV01A10_TEST_PATTERN_BAR_SHIFT |
+ OV01A10_TEST_PATTERN_ENABLE;
+
+ return ov01a10_write_reg(ov01a10, OV01A10_REG_TEST_PATTERN, 1, pattern);
+}
+
+static int ov01a10_set_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct ov01a10 *ov01a10 = container_of(ctrl->handler,
+ struct ov01a10, ctrl_handler);
+ struct i2c_client *client = v4l2_get_subdevdata(&ov01a10->sd);
+ s64 exposure_max;
+ int ret = 0;
+
+ /* Propagate change of current control to all related controls */
+ if (ctrl->id == V4L2_CID_VBLANK) {
+ /* Update max exposure while meeting expected vblanking */
+ exposure_max = ov01a10->cur_mode->height + ctrl->val -
+ OV01A10_EXPOSURE_MAX_MARGIN;
+ __v4l2_ctrl_modify_range(ov01a10->exposure,
+ ov01a10->exposure->minimum,
+ exposure_max, ov01a10->exposure->step,
+ exposure_max);
+ }
+
+ /* V4L2 controls values will be applied only when power is already up */
+ if (!pm_runtime_get_if_in_use(&client->dev))
+ return 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_ANALOGUE_GAIN:
+ ret = ov01a10_write_reg(ov01a10, OV01A10_REG_ANALOG_GAIN, 2,
+ ctrl->val);
+ break;
+
+ case V4L2_CID_DIGITAL_GAIN:
+ ret = ov01a10_update_digital_gain(ov01a10, ctrl->val);
+ break;
+
+ case V4L2_CID_EXPOSURE:
+ ret = ov01a10_write_reg(ov01a10, OV01A10_REG_EXPOSURE, 2,
+ ctrl->val);
+ break;
+
+ case V4L2_CID_VBLANK:
+ ret = ov01a10_write_reg(ov01a10, OV01A10_REG_VTS, 2,
+ ov01a10->cur_mode->height + ctrl->val);
+ break;
+
+ case V4L2_CID_TEST_PATTERN:
+ ret = ov01a10_test_pattern(ov01a10, ctrl->val);
+ break;
+
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ pm_runtime_put(&client->dev);
+
+ return ret;
+}
+
+static const struct v4l2_ctrl_ops ov01a10_ctrl_ops = {
+ .s_ctrl = ov01a10_set_ctrl,
+};
+
+static int ov01a10_init_controls(struct ov01a10 *ov01a10)
+{
+ struct v4l2_ctrl_handler *ctrl_hdlr;
+ const struct ov01a10_mode *cur_mode;
+ s64 exposure_max, h_blank;
+ u32 vblank_min, vblank_max, vblank_default;
+ int size;
+ int ret = 0;
+
+ ctrl_hdlr = &ov01a10->ctrl_handler;
+ ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8);
+ if (ret)
+ return ret;
+
+ ctrl_hdlr->lock = &ov01a10->mutex;
+ cur_mode = ov01a10->cur_mode;
+ size = ARRAY_SIZE(link_freq_menu_items);
+
+ ov01a10->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr,
+ &ov01a10_ctrl_ops,
+ V4L2_CID_LINK_FREQ,
+ size - 1, 0,
+ link_freq_menu_items);
+ if (ov01a10->link_freq)
+ ov01a10->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ ov01a10->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov01a10_ctrl_ops,
+ V4L2_CID_PIXEL_RATE, 0,
+ OV01A10_SCLK, 1, OV01A10_SCLK);
+
+ vblank_min = cur_mode->vts_min - cur_mode->height;
+ vblank_max = OV01A10_VTS_MAX - cur_mode->height;
+ vblank_default = cur_mode->vts_def - cur_mode->height;
+ ov01a10->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov01a10_ctrl_ops,
+ V4L2_CID_VBLANK, vblank_min,
+ vblank_max, 1, vblank_default);
+
+ h_blank = cur_mode->hts - cur_mode->width;
+ ov01a10->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov01a10_ctrl_ops,
+ V4L2_CID_HBLANK, h_blank, h_blank,
+ 1, h_blank);
+ if (ov01a10->hblank)
+ ov01a10->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ v4l2_ctrl_new_std(ctrl_hdlr, &ov01a10_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
+ OV01A10_ANAL_GAIN_MIN, OV01A10_ANAL_GAIN_MAX,
+ OV01A10_ANAL_GAIN_STEP, OV01A10_ANAL_GAIN_MIN);
+ v4l2_ctrl_new_std(ctrl_hdlr, &ov01a10_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
+ OV01A10_DGTL_GAIN_MIN, OV01A10_DGTL_GAIN_MAX,
+ OV01A10_DGTL_GAIN_STEP, OV01A10_DGTL_GAIN_DEFAULT);
+ exposure_max = cur_mode->vts_def - OV01A10_EXPOSURE_MAX_MARGIN;
+ ov01a10->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &ov01a10_ctrl_ops,
+ V4L2_CID_EXPOSURE,
+ OV01A10_EXPOSURE_MIN,
+ exposure_max,
+ OV01A10_EXPOSURE_STEP,
+ exposure_max);
+ v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &ov01a10_ctrl_ops,
+ V4L2_CID_TEST_PATTERN,
+ ARRAY_SIZE(ov01a10_test_pattern_menu) - 1,
+ 0, 0, ov01a10_test_pattern_menu);
+ if (ctrl_hdlr->error)
+ return ctrl_hdlr->error;
+
+ ov01a10->sd.ctrl_handler = ctrl_hdlr;
+
+ return 0;
+}
+
+static void ov01a10_update_pad_format(const struct ov01a10_mode *mode,
+ struct v4l2_mbus_framefmt *fmt)
+{
+ fmt->width = mode->width;
+ fmt->height = mode->height;
+ fmt->code = MEDIA_BUS_FMT_SBGGR10_1X10;
+ fmt->field = V4L2_FIELD_NONE;
+}
+
+static int ov01a10_start_streaming(struct ov01a10 *ov01a10)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov01a10->sd);
+ const struct ov01a10_reg_list *reg_list;
+ int link_freq_index;
+ int ret = 0;
+
+ link_freq_index = ov01a10->cur_mode->link_freq_index;
+ reg_list = &link_freq_configs[link_freq_index].reg_list;
+ ret = ov01a10_write_reg_list(ov01a10, reg_list);
+ if (ret) {
+ dev_err(&client->dev, "failed to set plls");
+ return ret;
+ }
+
+ reg_list = &ov01a10->cur_mode->reg_list;
+ ret = ov01a10_write_reg_list(ov01a10, reg_list);
+ if (ret) {
+ dev_err(&client->dev, "failed to set mode");
+ return ret;
+ }
+
+ ret = __v4l2_ctrl_handler_setup(ov01a10->sd.ctrl_handler);
+ if (ret)
+ return ret;
+
+ ret = ov01a10_write_reg(ov01a10, OV01A10_REG_MODE_SELECT, 1,
+ OV01A10_MODE_STREAMING);
+ if (ret)
+ dev_err(&client->dev, "failed to start streaming");
+
+ return ret;
+}
+
+static void ov01a10_stop_streaming(struct ov01a10 *ov01a10)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov01a10->sd);
+ int ret = 0;
+
+ ret = ov01a10_write_reg(ov01a10, OV01A10_REG_MODE_SELECT, 1,
+ OV01A10_MODE_STANDBY);
+ if (ret)
+ dev_err(&client->dev, "failed to stop streaming");
+}
+
+static int ov01a10_set_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct ov01a10 *ov01a10 = to_ov01a10(sd);
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ int ret = 0;
+
+ if (ov01a10->streaming == enable)
+ return 0;
+
+ mutex_lock(&ov01a10->mutex);
+ if (enable) {
+ ret = pm_runtime_get_sync(&client->dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(&client->dev);
+ mutex_unlock(&ov01a10->mutex);
+ return ret;
+ }
+
+ ret = ov01a10_start_streaming(ov01a10);
+ if (ret) {
+ enable = 0;
+ ov01a10_stop_streaming(ov01a10);
+ pm_runtime_put(&client->dev);
+ }
+ } else {
+ ov01a10_stop_streaming(ov01a10);
+ pm_runtime_put(&client->dev);
+ }
+
+ ov01a10->streaming = enable;
+ mutex_unlock(&ov01a10->mutex);
+
+ return ret;
+}
+
+static int __maybe_unused ov01a10_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct ov01a10 *ov01a10 = to_ov01a10(sd);
+
+ mutex_lock(&ov01a10->mutex);
+ if (ov01a10->streaming)
+ ov01a10_stop_streaming(ov01a10);
+
+ mutex_unlock(&ov01a10->mutex);
+
+ return 0;
+}
+
+static int __maybe_unused ov01a10_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct ov01a10 *ov01a10 = to_ov01a10(sd);
+ int ret = 0;
+
+ mutex_lock(&ov01a10->mutex);
+ if (!ov01a10->streaming)
+ goto exit;
+
+ ret = ov01a10_start_streaming(ov01a10);
+ if (ret) {
+ ov01a10->streaming = false;
+ ov01a10_stop_streaming(ov01a10);
+ }
+
+exit:
+ mutex_unlock(&ov01a10->mutex);
+ return ret;
+}
+
+static int ov01a10_set_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct ov01a10 *ov01a10 = to_ov01a10(sd);
+ const struct ov01a10_mode *mode;
+ s32 vblank_def, h_blank;
+
+ mode = v4l2_find_nearest_size(supported_modes,
+ ARRAY_SIZE(supported_modes), width,
+ height, fmt->format.width,
+ fmt->format.height);
+
+ mutex_lock(&ov01a10->mutex);
+ ov01a10_update_pad_format(mode, &fmt->format);
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+ *v4l2_subdev_get_try_format(sd, sd_state, fmt->pad) = fmt->format;
+ } else {
+ ov01a10->cur_mode = mode;
+ __v4l2_ctrl_s_ctrl(ov01a10->link_freq, mode->link_freq_index);
+ __v4l2_ctrl_s_ctrl_int64(ov01a10->pixel_rate, OV01A10_SCLK);
+
+ /* Update limits and set FPS to default */
+ vblank_def = mode->vts_def - mode->height;
+ __v4l2_ctrl_modify_range(ov01a10->vblank,
+ mode->vts_min - mode->height,
+ OV01A10_VTS_MAX - mode->height, 1,
+ vblank_def);
+ __v4l2_ctrl_s_ctrl(ov01a10->vblank, vblank_def);
+ h_blank = mode->hts - mode->width;
+ __v4l2_ctrl_modify_range(ov01a10->hblank, h_blank, h_blank, 1,
+ h_blank);
+ }
+ mutex_unlock(&ov01a10->mutex);
+
+ return 0;
+}
+
+static int ov01a10_get_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct ov01a10 *ov01a10 = to_ov01a10(sd);
+
+ mutex_lock(&ov01a10->mutex);
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
+ fmt->format = *v4l2_subdev_get_try_format(&ov01a10->sd,
+ sd_state, fmt->pad);
+ else
+ ov01a10_update_pad_format(ov01a10->cur_mode, &fmt->format);
+
+ mutex_unlock(&ov01a10->mutex);
+
+ return 0;
+}
+
+static int ov01a10_enum_mbus_code(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_mbus_code_enum *code)
+{
+ if (code->index > 0)
+ return -EINVAL;
+
+ code->code = MEDIA_BUS_FMT_SBGGR10_1X10;
+
+ return 0;
+}
+
+static int ov01a10_enum_frame_size(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_frame_size_enum *fse)
+{
+ if (fse->index >= ARRAY_SIZE(supported_modes))
+ return -EINVAL;
+
+ if (fse->code != MEDIA_BUS_FMT_SBGGR10_1X10)
+ return -EINVAL;
+
+ fse->min_width = supported_modes[fse->index].width;
+ fse->max_width = fse->min_width;
+ fse->min_height = supported_modes[fse->index].height;
+ fse->max_height = fse->min_height;
+
+ return 0;
+}
+
+static int ov01a10_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+ struct ov01a10 *ov01a10 = to_ov01a10(sd);
+
+ mutex_lock(&ov01a10->mutex);
+ ov01a10_update_pad_format(&supported_modes[0],
+ v4l2_subdev_get_try_format(sd, fh->state, 0));
+ mutex_unlock(&ov01a10->mutex);
+
+ return 0;
+}
+
+static const struct v4l2_subdev_video_ops ov01a10_video_ops = {
+ .s_stream = ov01a10_set_stream,
+};
+
+static const struct v4l2_subdev_pad_ops ov01a10_pad_ops = {
+ .set_fmt = ov01a10_set_format,
+ .get_fmt = ov01a10_get_format,
+ .enum_mbus_code = ov01a10_enum_mbus_code,
+ .enum_frame_size = ov01a10_enum_frame_size,
+};
+
+static const struct v4l2_subdev_ops ov01a10_subdev_ops = {
+ .video = &ov01a10_video_ops,
+ .pad = &ov01a10_pad_ops,
+};
+
+static const struct media_entity_operations ov01a10_subdev_entity_ops = {
+ .link_validate = v4l2_subdev_link_validate,
+};
+
+static const struct v4l2_subdev_internal_ops ov01a10_internal_ops = {
+ .open = ov01a10_open,
+};
+
+static int ov01a10_identify_module(struct ov01a10 *ov01a10)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov01a10->sd);
+ int ret;
+ u32 val;
+
+ ret = ov01a10_read_reg(ov01a10, OV01A10_REG_CHIP_ID, 3, &val);
+ if (ret)
+ return ret;
+
+ if (val != OV01A10_CHIP_ID) {
+ dev_err(&client->dev, "chip id mismatch: %x!=%x",
+ OV01A10_CHIP_ID, val);
+ return -ENXIO;
+ }
+
+ return 0;
+}
+
+static int ov01a10_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct ov01a10 *ov01a10 = to_ov01a10(sd);
+
+ v4l2_async_unregister_subdev(sd);
+ media_entity_cleanup(&sd->entity);
+ v4l2_ctrl_handler_free(sd->ctrl_handler);
+ pm_runtime_disable(&client->dev);
+ mutex_destroy(&ov01a10->mutex);
+
+ return 0;
+}
+
+static int ov01a10_probe(struct i2c_client *client)
+{
+ struct ov01a10 *ov01a10;
+ int ret = 0;
+ struct vsc_mipi_config conf;
+ struct vsc_camera_status status;
+ s64 link_freq;
+
+ conf.lane_num = OV01A10_DATA_LANES;
+ /* frequency unit 100k */
+ conf.freq = OV01A10_LINK_FREQ_400MHZ / 100000;
+ ret = vsc_acquire_camera_sensor(&conf, NULL, NULL, &status);
+ if (ret == -EAGAIN)
+ return -EPROBE_DEFER;
+ else if (ret) {
+ dev_err(&client->dev, "Acquire VSC failed.\n");
+ return ret;
+ }
+ ov01a10 = devm_kzalloc(&client->dev, sizeof(*ov01a10), GFP_KERNEL);
+ if (!ov01a10) {
+ ret = -ENOMEM;
+ goto probe_error_ret;
+ }
+
+ v4l2_i2c_subdev_init(&ov01a10->sd, client, &ov01a10_subdev_ops);
+
+ ret = ov01a10_identify_module(ov01a10);
+ if (ret) {
+ dev_err(&client->dev, "failed to find sensor: %d", ret);
+ goto probe_error_ret;
+ }
+
+ mutex_init(&ov01a10->mutex);
+ ov01a10->cur_mode = &supported_modes[0];
+ ret = ov01a10_init_controls(ov01a10);
+ if (ret) {
+ dev_err(&client->dev, "failed to init controls: %d", ret);
+ goto probe_error_v4l2_ctrl_handler_free;
+ }
+
+ ov01a10->sd.internal_ops = &ov01a10_internal_ops;
+ ov01a10->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+ ov01a10->sd.entity.ops = &ov01a10_subdev_entity_ops;
+ ov01a10->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
+ ov01a10->pad.flags = MEDIA_PAD_FL_SOURCE;
+ ret = media_entity_pads_init(&ov01a10->sd.entity, 1, &ov01a10->pad);
+ if (ret) {
+ dev_err(&client->dev, "failed to init entity pads: %d", ret);
+ goto probe_error_v4l2_ctrl_handler_free;
+ }
+
+ ret = v4l2_async_register_subdev_sensor(&ov01a10->sd);
+ if (ret < 0) {
+ dev_err(&client->dev, "failed to register V4L2 subdev: %d",
+ ret);
+ goto probe_error_media_entity_cleanup;
+ }
+
+ vsc_release_camera_sensor(&status);
+ /*
+ * Device is already turned on by i2c-core with ACPI domain PM.
+ * Enable runtime PM and turn off the device.
+ */
+ pm_runtime_set_active(&client->dev);
+ pm_runtime_enable(&client->dev);
+ pm_runtime_idle(&client->dev);
+
+ return 0;
+
+probe_error_media_entity_cleanup:
+ media_entity_cleanup(&ov01a10->sd.entity);
+
+probe_error_v4l2_ctrl_handler_free:
+ v4l2_ctrl_handler_free(ov01a10->sd.ctrl_handler);
+ mutex_destroy(&ov01a10->mutex);
+
+probe_error_ret:
+ vsc_release_camera_sensor(&status);
+ return ret;
+}
+
+static const struct dev_pm_ops ov01a10_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(ov01a10_suspend, ov01a10_resume)
+};
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id ov01a10_acpi_ids[] = {
+ {"OVTI01A0"},
+ {}
+};
+
+MODULE_DEVICE_TABLE(acpi, ov01a10_acpi_ids);
+#endif
+
+static struct i2c_driver ov01a10_i2c_driver = {
+ .driver = {
+ .name = "ov01a10",
+ .pm = &ov01a10_pm_ops,
+ .acpi_match_table = ACPI_PTR(ov01a10_acpi_ids),
+ },
+ .probe_new = ov01a10_probe,
+ .remove = ov01a10_remove,
+};
+
+module_i2c_driver(ov01a10_i2c_driver);
+
+MODULE_AUTHOR("Wang Yating <yating.wang at intel.com>");
+MODULE_DESCRIPTION("OmniVision OV01A10 sensor driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/media/i2c/ov01a1s.c b/drivers/media/i2c/ov01a1s.c
new file mode 100644
index 0000000000000..2bda3122ff47c
--- /dev/null
+++ b/drivers/media/i2c/ov01a1s.c
@@ -0,0 +1,949 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020-2021 Intel Corporation.
+
+#include <asm/unaligned.h>
+#include <linux/acpi.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/version.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fwnode.h>
+#include "power_ctrl_logic.h"
+#include <linux/vsc.h>
+
+#define OV01A1S_LINK_FREQ_400MHZ 400000000ULL
+#define OV01A1S_SCLK 40000000LL
+#define OV01A1S_MCLK 19200000
+#define OV01A1S_DATA_LANES 1
+#define OV01A1S_RGB_DEPTH 10
+
+#define OV01A1S_REG_CHIP_ID 0x300a
+#define OV01A1S_CHIP_ID 0x560141
+
+#define OV01A1S_REG_MODE_SELECT 0x0100
+#define OV01A1S_MODE_STANDBY 0x00
+#define OV01A1S_MODE_STREAMING 0x01
+
+/* vertical-timings from sensor */
+#define OV01A1S_REG_VTS 0x380e
+#define OV01A1S_VTS_DEF 0x0380
+#define OV01A1S_VTS_MIN 0x0380
+#define OV01A1S_VTS_MAX 0xffff
+
+/* Exposure controls from sensor */
+#define OV01A1S_REG_EXPOSURE 0x3501
+#define OV01A1S_EXPOSURE_MIN 4
+#define OV01A1S_EXPOSURE_MAX_MARGIN 8
+#define OV01A1S_EXPOSURE_STEP 1
+
+/* Analog gain controls from sensor */
+#define OV01A1S_REG_ANALOG_GAIN 0x3508
+#define OV01A1S_ANAL_GAIN_MIN 0x100
+#define OV01A1S_ANAL_GAIN_MAX 0xffff
+#define OV01A1S_ANAL_GAIN_STEP 1
+
+/* Digital gain controls from sensor */
+#define OV01A1S_REG_DIGILAL_GAIN_B 0x350A
+#define OV01A1S_REG_DIGITAL_GAIN_GB 0x3510
+#define OV01A1S_REG_DIGITAL_GAIN_GR 0x3513
+#define OV01A1S_REG_DIGITAL_GAIN_R 0x3516
+#define OV01A1S_DGTL_GAIN_MIN 0
+#define OV01A1S_DGTL_GAIN_MAX 0x3ffff
+#define OV01A1S_DGTL_GAIN_STEP 1
+#define OV01A1S_DGTL_GAIN_DEFAULT 1024
+
+/* Test Pattern Control */
+#define OV01A1S_REG_TEST_PATTERN 0x4503
+#define OV01A1S_TEST_PATTERN_ENABLE BIT(7)
+#define OV01A1S_TEST_PATTERN_BAR_SHIFT 0
+
+enum {
+ OV01A1S_LINK_FREQ_400MHZ_INDEX,
+};
+
+struct ov01a1s_reg {
+ u16 address;
+ u8 val;
+};
+
+struct ov01a1s_reg_list {
+ u32 num_of_regs;
+ const struct ov01a1s_reg *regs;
+};
+
+struct ov01a1s_link_freq_config {
+ const struct ov01a1s_reg_list reg_list;
+};
+
+struct ov01a1s_mode {
+ /* Frame width in pixels */
+ u32 width;
+
+ /* Frame height in pixels */
+ u32 height;
+
+ /* Horizontal timining size */
+ u32 hts;
+
+ /* Default vertical timining size */
+ u32 vts_def;
+
+ /* Min vertical timining size */
+ u32 vts_min;
+
+ /* Link frequency needed for this resolution */
+ u32 link_freq_index;
+
+ /* Sensor register settings for this resolution */
+ const struct ov01a1s_reg_list reg_list;
+};
+
+static const struct ov01a1s_reg mipi_data_rate_720mbps[] = {
+};
+
+static const struct ov01a1s_reg sensor_1296x800_setting[] = {
+ {0x0103, 0x01},
+ {0x0302, 0x00},
+ {0x0303, 0x06},
+ {0x0304, 0x01},
+ {0x0305, 0x90},
+ {0x0306, 0x00},
+ {0x0308, 0x01},
+ {0x0309, 0x00},
+ {0x030c, 0x01},
+ {0x0322, 0x01},
+ {0x0323, 0x06},
+ {0x0324, 0x01},
+ {0x0325, 0x68},
+ {0x3002, 0xa1},
+ {0x301e, 0xf0},
+ {0x3022, 0x01},
+ {0x3501, 0x03},
+ {0x3502, 0x78},
+ {0x3504, 0x0c},
+ {0x3508, 0x01},
+ {0x3509, 0x00},
+ {0x3601, 0xc0},
+ {0x3603, 0x71},
+ {0x3610, 0x68},
+ {0x3611, 0x86},
+ {0x3640, 0x10},
+ {0x3641, 0x80},
+ {0x3642, 0xdc},
+ {0x3646, 0x55},
+ {0x3647, 0x57},
+ {0x364b, 0x00},
+ {0x3653, 0x10},
+ {0x3655, 0x00},
+ {0x3656, 0x00},
+ {0x365f, 0x0f},
+ {0x3661, 0x45},
+ {0x3662, 0x24},
+ {0x3663, 0x11},
+ {0x3664, 0x07},
+ {0x3709, 0x34},
+ {0x370b, 0x6f},
+ {0x3714, 0x22},
+ {0x371b, 0x27},
+ {0x371c, 0x67},
+ {0x371d, 0xa7},
+ {0x371e, 0xe7},
+ {0x3730, 0x81},
+ {0x3733, 0x10},
+ {0x3734, 0x40},
+ {0x3737, 0x04},
+ {0x3739, 0x1c},
+ {0x3767, 0x00},
+ {0x376c, 0x81},
+ {0x3772, 0x14},
+ {0x37c2, 0x04},
+ {0x37d8, 0x03},
+ {0x37d9, 0x0c},
+ {0x37e0, 0x00},
+ {0x37e1, 0x08},
+ {0x37e2, 0x10},
+ {0x37e3, 0x04},
+ {0x37e4, 0x04},
+ {0x37e5, 0x03},
+ {0x37e6, 0x04},
+ {0x3800, 0x00},
+ {0x3801, 0x00},
+ {0x3802, 0x00},
+ {0x3803, 0x00},
+ {0x3804, 0x05},
+ {0x3805, 0x0f},
+ {0x3806, 0x03},
+ {0x3807, 0x2f},
+ {0x3808, 0x05},
+ {0x3809, 0x00},
+ {0x380a, 0x03},
+ {0x380b, 0x1e},
+ {0x380c, 0x05},
+ {0x380d, 0xd0},
+ {0x380e, 0x03},
+ {0x380f, 0x80},
+ {0x3810, 0x00},
+ {0x3811, 0x09},
+ {0x3812, 0x00},
+ {0x3813, 0x08},
+ {0x3814, 0x01},
+ {0x3815, 0x01},
+ {0x3816, 0x01},
+ {0x3817, 0x01},
+ {0x3820, 0xa8},
+ {0x3822, 0x03},
+ {0x3832, 0x28},
+ {0x3833, 0x10},
+ {0x3b00, 0x00},
+ {0x3c80, 0x00},
+ {0x3c88, 0x02},
+ {0x3c8c, 0x07},
+ {0x3c8d, 0x40},
+ {0x3cc7, 0x80},
+ {0x4000, 0xc3},
+ {0x4001, 0xe0},
+ {0x4003, 0x40},
+ {0x4008, 0x02},
+ {0x4009, 0x19},
+ {0x400a, 0x01},
+ {0x400b, 0x6c},
+ {0x4011, 0x00},
+ {0x4041, 0x00},
+ {0x4300, 0xff},
+ {0x4301, 0x00},
+ {0x4302, 0x0f},
+ {0x4503, 0x00},
+ {0x4601, 0x50},
+ {0x481f, 0x34},
+ {0x4825, 0x33},
+ {0x4837, 0x14},
+ {0x4881, 0x40},
+ {0x4883, 0x01},
+ {0x4890, 0x00},
+ {0x4901, 0x00},
+ {0x4902, 0x00},
+ {0x4b00, 0x2a},
+ {0x4b0d, 0x00},
+ {0x450a, 0x04},
+ {0x450b, 0x00},
+ {0x5000, 0x65},
+ {0x5004, 0x00},
+ {0x5080, 0x40},
+ {0x5200, 0x18},
+ {0x4837, 0x14},
+ {0x0305, 0xf4},
+ {0x0325, 0xc2},
+ {0x3808, 0x05},
+ {0x3809, 0x10},
+ {0x380a, 0x03},
+ {0x380b, 0x1e},
+ {0x3810, 0x00},
+ {0x3811, 0x00},
+ {0x3812, 0x00},
+ {0x3813, 0x09},
+ {0x3820, 0x88},
+ {0x373d, 0x24},
+};
+
+static const char * const ov01a1s_test_pattern_menu[] = {
+ "Disabled",
+ "Color Bar",
+ "Top-Bottom Darker Color Bar",
+ "Right-Left Darker Color Bar",
+ "Color Bar type 4",
+};
+
+static const s64 link_freq_menu_items[] = {
+ OV01A1S_LINK_FREQ_400MHZ,
+};
+
+static const struct ov01a1s_link_freq_config link_freq_configs[] = {
+ [OV01A1S_LINK_FREQ_400MHZ_INDEX] = {
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mipi_data_rate_720mbps),
+ .regs = mipi_data_rate_720mbps,
+ }
+ },
+};
+
+static const struct ov01a1s_mode supported_modes[] = {
+ {
+ .width = 1296,
+ .height = 798,
+ .hts = 1488,
+ .vts_def = OV01A1S_VTS_DEF,
+ .vts_min = OV01A1S_VTS_MIN,
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(sensor_1296x800_setting),
+ .regs = sensor_1296x800_setting,
+ },
+ .link_freq_index = OV01A1S_LINK_FREQ_400MHZ_INDEX,
+ },
+};
+
+struct ov01a1s {
+ struct v4l2_subdev sd;
+ struct media_pad pad;
+ struct v4l2_ctrl_handler ctrl_handler;
+
+ /* V4L2 Controls */
+ struct v4l2_ctrl *link_freq;
+ struct v4l2_ctrl *pixel_rate;
+ struct v4l2_ctrl *vblank;
+ struct v4l2_ctrl *hblank;
+ struct v4l2_ctrl *exposure;
+
+ /* Current mode */
+ const struct ov01a1s_mode *cur_mode;
+
+ /* To serialize asynchronus callbacks */
+ struct mutex mutex;
+
+ /* Streaming on/off */
+ bool streaming;
+};
+
+static inline struct ov01a1s *to_ov01a1s(struct v4l2_subdev *subdev)
+{
+ return container_of(subdev, struct ov01a1s, sd);
+}
+
+static int ov01a1s_read_reg(struct ov01a1s *ov01a1s, u16 reg, u16 len, u32 *val)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov01a1s->sd);
+ struct i2c_msg msgs[2];
+ u8 addr_buf[2];
+ u8 data_buf[4] = {0};
+ int ret = 0;
+
+ if (len > sizeof(data_buf))
+ return -EINVAL;
+
+ put_unaligned_be16(reg, addr_buf);
+ msgs[0].addr = client->addr;
+ msgs[0].flags = 0;
+ msgs[0].len = sizeof(addr_buf);
+ msgs[0].buf = addr_buf;
+ msgs[1].addr = client->addr;
+ msgs[1].flags = I2C_M_RD;
+ msgs[1].len = len;
+ msgs[1].buf = &data_buf[sizeof(data_buf) - len];
+
+ ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
+ if (ret != ARRAY_SIZE(msgs))
+ return ret < 0 ? ret : -EIO;
+
+ *val = get_unaligned_be32(data_buf);
+
+ return 0;
+}
+
+static int ov01a1s_write_reg(struct ov01a1s *ov01a1s, u16 reg, u16 len, u32 val)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov01a1s->sd);
+ u8 buf[6];
+ int ret = 0;
+
+ if (len > 4)
+ return -EINVAL;
+
+ put_unaligned_be16(reg, buf);
+ put_unaligned_be32(val << 8 * (4 - len), buf + 2);
+
+ ret = i2c_master_send(client, buf, len + 2);
+ if (ret != len + 2)
+ return ret < 0 ? ret : -EIO;
+
+ return 0;
+}
+
+static int ov01a1s_write_reg_list(struct ov01a1s *ov01a1s,
+ const struct ov01a1s_reg_list *r_list)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov01a1s->sd);
+ unsigned int i;
+ int ret = 0;
+
+ for (i = 0; i < r_list->num_of_regs; i++) {
+ ret = ov01a1s_write_reg(ov01a1s, r_list->regs[i].address, 1,
+ r_list->regs[i].val);
+ if (ret) {
+ dev_err_ratelimited(&client->dev,
+ "write reg 0x%4.4x return err = %d",
+ r_list->regs[i].address, ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int ov01a1s_update_digital_gain(struct ov01a1s *ov01a1s, u32 d_gain)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov01a1s->sd);
+ u32 real = d_gain << 6;
+ int ret = 0;
+
+ ret = ov01a1s_write_reg(ov01a1s, OV01A1S_REG_DIGILAL_GAIN_B, 3, real);
+ if (ret) {
+ dev_err(&client->dev, "failed to set OV01A1S_REG_DIGITAL_GAIN_B");
+ return ret;
+ }
+ ret = ov01a1s_write_reg(ov01a1s, OV01A1S_REG_DIGITAL_GAIN_GB, 3, real);
+ if (ret) {
+ dev_err(&client->dev, "failed to set OV01A1S_REG_DIGITAL_GAIN_GB");
+ return ret;
+ }
+ ret = ov01a1s_write_reg(ov01a1s, OV01A1S_REG_DIGITAL_GAIN_GR, 3, real);
+ if (ret) {
+ dev_err(&client->dev, "failed to set OV01A1S_REG_DIGITAL_GAIN_GR");
+ return ret;
+ }
+
+ ret = ov01a1s_write_reg(ov01a1s, OV01A1S_REG_DIGITAL_GAIN_R, 3, real);
+ if (ret) {
+ dev_err(&client->dev, "failed to set OV01A1S_REG_DIGITAL_GAIN_R");
+ return ret;
+ }
+ return ret;
+}
+
+static int ov01a1s_test_pattern(struct ov01a1s *ov01a1s, u32 pattern)
+{
+ if (pattern)
+ pattern = (pattern - 1) << OV01A1S_TEST_PATTERN_BAR_SHIFT |
+ OV01A1S_TEST_PATTERN_ENABLE;
+
+ return ov01a1s_write_reg(ov01a1s, OV01A1S_REG_TEST_PATTERN, 1, pattern);
+}
+
+static int ov01a1s_set_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct ov01a1s *ov01a1s = container_of(ctrl->handler,
+ struct ov01a1s, ctrl_handler);
+ struct i2c_client *client = v4l2_get_subdevdata(&ov01a1s->sd);
+ s64 exposure_max;
+ int ret = 0;
+
+ /* Propagate change of current control to all related controls */
+ if (ctrl->id == V4L2_CID_VBLANK) {
+ /* Update max exposure while meeting expected vblanking */
+ exposure_max = ov01a1s->cur_mode->height + ctrl->val -
+ OV01A1S_EXPOSURE_MAX_MARGIN;
+ __v4l2_ctrl_modify_range(ov01a1s->exposure,
+ ov01a1s->exposure->minimum,
+ exposure_max, ov01a1s->exposure->step,
+ exposure_max);
+ }
+
+ /* V4L2 controls values will be applied only when power is already up */
+ if (!pm_runtime_get_if_in_use(&client->dev))
+ return 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_ANALOGUE_GAIN:
+ ret = ov01a1s_write_reg(ov01a1s, OV01A1S_REG_ANALOG_GAIN, 2,
+ ctrl->val);
+ break;
+
+ case V4L2_CID_DIGITAL_GAIN:
+ ret = ov01a1s_update_digital_gain(ov01a1s, ctrl->val);
+ break;
+
+ case V4L2_CID_EXPOSURE:
+ ret = ov01a1s_write_reg(ov01a1s, OV01A1S_REG_EXPOSURE, 2,
+ ctrl->val);
+ break;
+
+ case V4L2_CID_VBLANK:
+ ret = ov01a1s_write_reg(ov01a1s, OV01A1S_REG_VTS, 2,
+ ov01a1s->cur_mode->height + ctrl->val);
+ break;
+
+ case V4L2_CID_TEST_PATTERN:
+ ret = ov01a1s_test_pattern(ov01a1s, ctrl->val);
+ break;
+
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ pm_runtime_put(&client->dev);
+
+ return ret;
+}
+
+static const struct v4l2_ctrl_ops ov01a1s_ctrl_ops = {
+ .s_ctrl = ov01a1s_set_ctrl,
+};
+
+static int ov01a1s_init_controls(struct ov01a1s *ov01a1s)
+{
+ struct v4l2_ctrl_handler *ctrl_hdlr;
+ const struct ov01a1s_mode *cur_mode;
+ s64 exposure_max, h_blank;
+ u32 vblank_min, vblank_max, vblank_default;
+ int size;
+ int ret = 0;
+
+ ctrl_hdlr = &ov01a1s->ctrl_handler;
+ ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8);
+ if (ret)
+ return ret;
+
+ ctrl_hdlr->lock = &ov01a1s->mutex;
+ cur_mode = ov01a1s->cur_mode;
+ size = ARRAY_SIZE(link_freq_menu_items);
+
+ ov01a1s->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr,
+ &ov01a1s_ctrl_ops,
+ V4L2_CID_LINK_FREQ,
+ size - 1, 0,
+ link_freq_menu_items);
+ if (ov01a1s->link_freq)
+ ov01a1s->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ ov01a1s->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov01a1s_ctrl_ops,
+ V4L2_CID_PIXEL_RATE, 0,
+ OV01A1S_SCLK, 1, OV01A1S_SCLK);
+
+ vblank_min = cur_mode->vts_min - cur_mode->height;
+ vblank_max = OV01A1S_VTS_MAX - cur_mode->height;
+ vblank_default = cur_mode->vts_def - cur_mode->height;
+ ov01a1s->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov01a1s_ctrl_ops,
+ V4L2_CID_VBLANK, vblank_min,
+ vblank_max, 1, vblank_default);
+
+ h_blank = cur_mode->hts - cur_mode->width;
+ ov01a1s->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov01a1s_ctrl_ops,
+ V4L2_CID_HBLANK, h_blank, h_blank,
+ 1, h_blank);
+ if (ov01a1s->hblank)
+ ov01a1s->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ v4l2_ctrl_new_std(ctrl_hdlr, &ov01a1s_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
+ OV01A1S_ANAL_GAIN_MIN, OV01A1S_ANAL_GAIN_MAX,
+ OV01A1S_ANAL_GAIN_STEP, OV01A1S_ANAL_GAIN_MIN);
+ v4l2_ctrl_new_std(ctrl_hdlr, &ov01a1s_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
+ OV01A1S_DGTL_GAIN_MIN, OV01A1S_DGTL_GAIN_MAX,
+ OV01A1S_DGTL_GAIN_STEP, OV01A1S_DGTL_GAIN_DEFAULT);
+ exposure_max = cur_mode->vts_def - OV01A1S_EXPOSURE_MAX_MARGIN;
+ ov01a1s->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &ov01a1s_ctrl_ops,
+ V4L2_CID_EXPOSURE,
+ OV01A1S_EXPOSURE_MIN,
+ exposure_max,
+ OV01A1S_EXPOSURE_STEP,
+ exposure_max);
+ v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &ov01a1s_ctrl_ops,
+ V4L2_CID_TEST_PATTERN,
+ ARRAY_SIZE(ov01a1s_test_pattern_menu) - 1,
+ 0, 0, ov01a1s_test_pattern_menu);
+ if (ctrl_hdlr->error)
+ return ctrl_hdlr->error;
+
+ ov01a1s->sd.ctrl_handler = ctrl_hdlr;
+
+ return 0;
+}
+
+static void ov01a1s_update_pad_format(const struct ov01a1s_mode *mode,
+ struct v4l2_mbus_framefmt *fmt)
+{
+ fmt->width = mode->width;
+ fmt->height = mode->height;
+ fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
+ fmt->field = V4L2_FIELD_NONE;
+}
+
+static int ov01a1s_start_streaming(struct ov01a1s *ov01a1s)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov01a1s->sd);
+ const struct ov01a1s_reg_list *reg_list;
+ int link_freq_index;
+ int ret = 0;
+
+ power_ctrl_logic_set_power(1);
+ link_freq_index = ov01a1s->cur_mode->link_freq_index;
+ reg_list = &link_freq_configs[link_freq_index].reg_list;
+ ret = ov01a1s_write_reg_list(ov01a1s, reg_list);
+ if (ret) {
+ dev_err(&client->dev, "failed to set plls");
+ return ret;
+ }
+
+ reg_list = &ov01a1s->cur_mode->reg_list;
+ ret = ov01a1s_write_reg_list(ov01a1s, reg_list);
+ if (ret) {
+ dev_err(&client->dev, "failed to set mode");
+ return ret;
+ }
+
+ ret = __v4l2_ctrl_handler_setup(ov01a1s->sd.ctrl_handler);
+ if (ret)
+ return ret;
+
+ ret = ov01a1s_write_reg(ov01a1s, OV01A1S_REG_MODE_SELECT, 1,
+ OV01A1S_MODE_STREAMING);
+ if (ret)
+ dev_err(&client->dev, "failed to start streaming");
+
+ return ret;
+}
+
+static void ov01a1s_stop_streaming(struct ov01a1s *ov01a1s)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov01a1s->sd);
+ int ret = 0;
+
+ ret = ov01a1s_write_reg(ov01a1s, OV01A1S_REG_MODE_SELECT, 1,
+ OV01A1S_MODE_STANDBY);
+ if (ret)
+ dev_err(&client->dev, "failed to stop streaming");
+ power_ctrl_logic_set_power(0);
+}
+
+static int ov01a1s_set_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct ov01a1s *ov01a1s = to_ov01a1s(sd);
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ int ret = 0;
+
+ if (ov01a1s->streaming == enable)
+ return 0;
+
+ mutex_lock(&ov01a1s->mutex);
+ if (enable) {
+ ret = pm_runtime_get_sync(&client->dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(&client->dev);
+ mutex_unlock(&ov01a1s->mutex);
+ return ret;
+ }
+
+ ret = ov01a1s_start_streaming(ov01a1s);
+ if (ret) {
+ enable = 0;
+ ov01a1s_stop_streaming(ov01a1s);
+ pm_runtime_put(&client->dev);
+ }
+ } else {
+ ov01a1s_stop_streaming(ov01a1s);
+ pm_runtime_put(&client->dev);
+ }
+
+ ov01a1s->streaming = enable;
+ mutex_unlock(&ov01a1s->mutex);
+
+ return ret;
+}
+
+static int __maybe_unused ov01a1s_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct ov01a1s *ov01a1s = to_ov01a1s(sd);
+
+ mutex_lock(&ov01a1s->mutex);
+ if (ov01a1s->streaming)
+ ov01a1s_stop_streaming(ov01a1s);
+
+ mutex_unlock(&ov01a1s->mutex);
+
+ return 0;
+}
+
+static int __maybe_unused ov01a1s_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct ov01a1s *ov01a1s = to_ov01a1s(sd);
+ int ret = 0;
+
+ mutex_lock(&ov01a1s->mutex);
+ if (!ov01a1s->streaming)
+ goto exit;
+
+ ret = ov01a1s_start_streaming(ov01a1s);
+ if (ret) {
+ ov01a1s->streaming = false;
+ ov01a1s_stop_streaming(ov01a1s);
+ }
+
+exit:
+ mutex_unlock(&ov01a1s->mutex);
+ return ret;
+}
+
+static int ov01a1s_set_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct ov01a1s *ov01a1s = to_ov01a1s(sd);
+ const struct ov01a1s_mode *mode;
+ s32 vblank_def, h_blank;
+
+ mode = v4l2_find_nearest_size(supported_modes,
+ ARRAY_SIZE(supported_modes), width,
+ height, fmt->format.width,
+ fmt->format.height);
+
+ mutex_lock(&ov01a1s->mutex);
+ ov01a1s_update_pad_format(mode, &fmt->format);
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+ *v4l2_subdev_get_try_format(sd, sd_state, fmt->pad) = fmt->format;
+ } else {
+ ov01a1s->cur_mode = mode;
+ __v4l2_ctrl_s_ctrl(ov01a1s->link_freq, mode->link_freq_index);
+ __v4l2_ctrl_s_ctrl_int64(ov01a1s->pixel_rate, OV01A1S_SCLK);
+
+ /* Update limits and set FPS to default */
+ vblank_def = mode->vts_def - mode->height;
+ __v4l2_ctrl_modify_range(ov01a1s->vblank,
+ mode->vts_min - mode->height,
+ OV01A1S_VTS_MAX - mode->height, 1,
+ vblank_def);
+ __v4l2_ctrl_s_ctrl(ov01a1s->vblank, vblank_def);
+ h_blank = mode->hts - mode->width;
+ __v4l2_ctrl_modify_range(ov01a1s->hblank, h_blank, h_blank, 1,
+ h_blank);
+ }
+ mutex_unlock(&ov01a1s->mutex);
+
+ return 0;
+}
+
+static int ov01a1s_get_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct ov01a1s *ov01a1s = to_ov01a1s(sd);
+
+ mutex_lock(&ov01a1s->mutex);
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
+ fmt->format = *v4l2_subdev_get_try_format(&ov01a1s->sd,
+ sd_state, fmt->pad);
+ else
+ ov01a1s_update_pad_format(ov01a1s->cur_mode, &fmt->format);
+
+ mutex_unlock(&ov01a1s->mutex);
+
+ return 0;
+}
+
+static int ov01a1s_enum_mbus_code(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_mbus_code_enum *code)
+{
+ if (code->index > 0)
+ return -EINVAL;
+
+ code->code = MEDIA_BUS_FMT_SGRBG10_1X10;
+
+ return 0;
+}
+
+static int ov01a1s_enum_frame_size(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_frame_size_enum *fse)
+{
+ if (fse->index >= ARRAY_SIZE(supported_modes))
+ return -EINVAL;
+
+ if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10)
+ return -EINVAL;
+
+ fse->min_width = supported_modes[fse->index].width;
+ fse->max_width = fse->min_width;
+ fse->min_height = supported_modes[fse->index].height;
+ fse->max_height = fse->min_height;
+
+ return 0;
+}
+
+static int ov01a1s_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+ struct ov01a1s *ov01a1s = to_ov01a1s(sd);
+
+ mutex_lock(&ov01a1s->mutex);
+ ov01a1s_update_pad_format(&supported_modes[0],
+ v4l2_subdev_get_try_format(sd, fh->state, 0));
+ mutex_unlock(&ov01a1s->mutex);
+
+ return 0;
+}
+
+static const struct v4l2_subdev_video_ops ov01a1s_video_ops = {
+ .s_stream = ov01a1s_set_stream,
+};
+
+static const struct v4l2_subdev_pad_ops ov01a1s_pad_ops = {
+ .set_fmt = ov01a1s_set_format,
+ .get_fmt = ov01a1s_get_format,
+ .enum_mbus_code = ov01a1s_enum_mbus_code,
+ .enum_frame_size = ov01a1s_enum_frame_size,
+};
+
+static const struct v4l2_subdev_ops ov01a1s_subdev_ops = {
+ .video = &ov01a1s_video_ops,
+ .pad = &ov01a1s_pad_ops,
+};
+
+static const struct media_entity_operations ov01a1s_subdev_entity_ops = {
+ .link_validate = v4l2_subdev_link_validate,
+};
+
+static const struct v4l2_subdev_internal_ops ov01a1s_internal_ops = {
+ .open = ov01a1s_open,
+};
+
+static int ov01a1s_identify_module(struct ov01a1s *ov01a1s)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov01a1s->sd);
+ int ret;
+ u32 val;
+
+ ret = ov01a1s_read_reg(ov01a1s, OV01A1S_REG_CHIP_ID, 3, &val);
+ if (ret)
+ return ret;
+
+ if (val != OV01A1S_CHIP_ID) {
+ dev_err(&client->dev, "chip id mismatch: %x!=%x",
+ OV01A1S_CHIP_ID, val);
+ return -ENXIO;
+ }
+
+ return 0;
+}
+
+static int ov01a1s_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct ov01a1s *ov01a1s = to_ov01a1s(sd);
+
+ v4l2_async_unregister_subdev(sd);
+ media_entity_cleanup(&sd->entity);
+ v4l2_ctrl_handler_free(sd->ctrl_handler);
+ pm_runtime_disable(&client->dev);
+ mutex_destroy(&ov01a1s->mutex);
+
+ return 0;
+}
+
+static int ov01a1s_probe(struct i2c_client *client)
+{
+ struct ov01a1s *ov01a1s;
+ int ret = 0;
+ struct vsc_mipi_config conf;
+ struct vsc_camera_status status;
+ s64 link_freq;
+
+ conf.lane_num = OV01A1S_DATA_LANES;
+ /* frequency unit 100k */
+ conf.freq = OV01A1S_LINK_FREQ_400MHZ / 100000;
+ ret = vsc_acquire_camera_sensor(&conf, NULL, NULL, &status);
+ if (ret == -EAGAIN)
+ ret = power_ctrl_logic_set_power(1);
+ if (ret == -EAGAIN)
+ return -EPROBE_DEFER;
+ else if (ret)
+ return ret;
+ ov01a1s = devm_kzalloc(&client->dev, sizeof(*ov01a1s), GFP_KERNEL);
+ if (!ov01a1s) {
+ ret = -ENOMEM;
+ goto probe_error_ret;
+ }
+
+ v4l2_i2c_subdev_init(&ov01a1s->sd, client, &ov01a1s_subdev_ops);
+ ret = ov01a1s_identify_module(ov01a1s);
+ if (ret) {
+ dev_err(&client->dev, "failed to find sensor: %d", ret);
+ goto probe_error_ret;
+ }
+
+ mutex_init(&ov01a1s->mutex);
+ ov01a1s->cur_mode = &supported_modes[0];
+ ret = ov01a1s_init_controls(ov01a1s);
+ if (ret) {
+ dev_err(&client->dev, "failed to init controls: %d", ret);
+ goto probe_error_v4l2_ctrl_handler_free;
+ }
+
+ ov01a1s->sd.internal_ops = &ov01a1s_internal_ops;
+ ov01a1s->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+ ov01a1s->sd.entity.ops = &ov01a1s_subdev_entity_ops;
+ ov01a1s->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
+ ov01a1s->pad.flags = MEDIA_PAD_FL_SOURCE;
+ ret = media_entity_pads_init(&ov01a1s->sd.entity, 1, &ov01a1s->pad);
+ if (ret) {
+ dev_err(&client->dev, "failed to init entity pads: %d", ret);
+ goto probe_error_v4l2_ctrl_handler_free;
+ }
+
+ ret = v4l2_async_register_subdev_sensor(&ov01a1s->sd);
+ if (ret < 0) {
+ dev_err(&client->dev, "failed to register V4L2 subdev: %d",
+ ret);
+ goto probe_error_media_entity_cleanup;
+ }
+
+ vsc_release_camera_sensor(&status);
+ /*
+ * Device is already turned on by i2c-core with ACPI domain PM.
+ * Enable runtime PM and turn off the device.
+ */
+ pm_runtime_set_active(&client->dev);
+ pm_runtime_enable(&client->dev);
+ pm_runtime_idle(&client->dev);
+
+ power_ctrl_logic_set_power(0);
+ return 0;
+
+probe_error_media_entity_cleanup:
+ media_entity_cleanup(&ov01a1s->sd.entity);
+
+probe_error_v4l2_ctrl_handler_free:
+ v4l2_ctrl_handler_free(ov01a1s->sd.ctrl_handler);
+ mutex_destroy(&ov01a1s->mutex);
+
+probe_error_ret:
+ power_ctrl_logic_set_power(0);
+ vsc_release_camera_sensor(&status);
+ return ret;
+}
+
+static const struct dev_pm_ops ov01a1s_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(ov01a1s_suspend, ov01a1s_resume)
+};
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id ov01a1s_acpi_ids[] = {
+ { "OVTI01AS" },
+ {}
+};
+
+MODULE_DEVICE_TABLE(acpi, ov01a1s_acpi_ids);
+#endif
+
+static struct i2c_driver ov01a1s_i2c_driver = {
+ .driver = {
+ .name = "ov01a1s",
+ .pm = &ov01a1s_pm_ops,
+ .acpi_match_table = ACPI_PTR(ov01a1s_acpi_ids),
+ },
+ .probe_new = ov01a1s_probe,
+ .remove = ov01a1s_remove,
+};
+
+module_i2c_driver(ov01a1s_i2c_driver);
+
+MODULE_AUTHOR("Xu, Chongyang <chongyang.xu at intel.com>");
+MODULE_AUTHOR("Lai, Jim <jim.lai at intel.com>");
+MODULE_AUTHOR("Qiu, Tianshu <tian.shu.qiu at intel.com>");
+MODULE_AUTHOR("Shawn Tu <shawnx.tu at intel.com>");
+MODULE_AUTHOR("Bingbu Cao <bingbu.cao at intel.com>");
+MODULE_DESCRIPTION("OmniVision OV01A1S sensor driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/media/i2c/power_ctrl_logic.c b/drivers/media/i2c/power_ctrl_logic.c
new file mode 100644
index 0000000000000..90ee1e23d6ea2
--- /dev/null
+++ b/drivers/media/i2c/power_ctrl_logic.c
@@ -0,0 +1,147 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020-2021 Intel Corporation.
+
+#include <linux/acpi.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/mutex.h>
+#include <linux/gpio/consumer.h>
+
+#define PCL_DRV_NAME "power_ctrl_logic"
+
+struct power_ctrl_logic {
+ /* gpio resource*/
+ struct gpio_desc *reset_gpio;
+ struct gpio_desc *powerdn_gpio;
+ struct gpio_desc *clocken_gpio;
+ struct gpio_desc *indled_gpio;
+ /* status */
+ struct mutex status_lock;
+ bool power_on;
+ bool gpio_ready;
+};
+
+struct power_ctrl_gpio {
+ const char *name;
+ struct gpio_desc **pin;
+};
+
+/* mcu gpio resources*/
+static const struct acpi_gpio_params camreset_gpio = { 0, 0, false };
+static const struct acpi_gpio_params campwdn_gpio = { 1, 0, false };
+static const struct acpi_gpio_params midmclken_gpio = { 2, 0, false };
+static const struct acpi_gpio_params led_gpio = { 3, 0, false };
+static const struct acpi_gpio_mapping dsc1_acpi_gpios[] = {
+ { "camreset-gpios", &camreset_gpio, 1 },
+ { "campwdn-gpios", &campwdn_gpio, 1 },
+ { "midmclken-gpios", &midmclken_gpio, 1 },
+ { "indled-gpios", &led_gpio, 1 },
+ { }
+};
+
+static struct power_ctrl_logic pcl = {
+ .reset_gpio = NULL,
+ .powerdn_gpio = NULL,
+ .clocken_gpio = NULL,
+ .indled_gpio = NULL,
+ .power_on = false,
+ .gpio_ready = false,
+};
+
+static struct power_ctrl_gpio pcl_gpios[] = {
+ { "camreset", &pcl.reset_gpio },
+ { "campwdn", &pcl.powerdn_gpio },
+ { "midmclken", &pcl.clocken_gpio},
+ { "indled", &pcl.indled_gpio},
+};
+
+static int power_ctrl_logic_add(struct acpi_device *adev)
+{
+ int i, ret;
+
+ dev_dbg(&adev->dev, "@%s, enter\n", __func__);
+ set_primary_fwnode(&adev->dev, &adev->fwnode);
+
+ ret = acpi_dev_add_driver_gpios(adev, dsc1_acpi_gpios);
+ if (ret) {
+ dev_err(&adev->dev, "@%s: --111---fail to add gpio. ret %d\n", __func__, ret);
+ return -EBUSY;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(pcl_gpios); i++) {
+ *pcl_gpios[i].pin = gpiod_get(&adev->dev, pcl_gpios[i].name, GPIOD_OUT_LOW);
+ if (IS_ERR(*pcl_gpios[i].pin)) {
+ dev_dbg(&adev->dev, "failed to get gpio %s\n", pcl_gpios[i].name);
+ return -EPROBE_DEFER;
+ }
+ }
+
+ mutex_lock(&pcl.status_lock);
+ pcl.gpio_ready = true;
+ mutex_unlock(&pcl.status_lock);
+
+ dev_dbg(&adev->dev, "@%s, exit\n", __func__);
+ return ret;
+}
+
+static int power_ctrl_logic_remove(struct acpi_device *adev)
+{
+ dev_dbg(&adev->dev, "@%s, enter\n", __func__);
+ mutex_lock(&pcl.status_lock);
+ pcl.gpio_ready = false;
+ gpiod_set_value_cansleep(pcl.reset_gpio, 0);
+ gpiod_put(pcl.reset_gpio);
+ gpiod_set_value_cansleep(pcl.powerdn_gpio, 0);
+ gpiod_put(pcl.powerdn_gpio);
+ gpiod_set_value_cansleep(pcl.clocken_gpio, 0);
+ gpiod_put(pcl.clocken_gpio);
+ gpiod_set_value_cansleep(pcl.indled_gpio, 0);
+ gpiod_put(pcl.indled_gpio);
+ mutex_unlock(&pcl.status_lock);
+ dev_dbg(&adev->dev, "@%s, exit\n", __func__);
+ return 0;
+}
+
+static struct acpi_device_id acpi_ids[] = {
+ { "INT3472", 0 },
+ { },
+};
+MODULE_DEVICE_TABLE(acpi, acpi_ids);
+
+static struct acpi_driver _driver = {
+ .name = PCL_DRV_NAME,
+ .class = PCL_DRV_NAME,
+ .ids = acpi_ids,
+ .ops = {
+ .add = power_ctrl_logic_add,
+ .remove = power_ctrl_logic_remove,
+ },
+};
+module_acpi_driver(_driver);
+
+int power_ctrl_logic_set_power(int on)
+{
+ mutex_lock(&pcl.status_lock);
+ if (!pcl.gpio_ready) {
+ pr_debug("@%s,failed to set power, gpio_ready=%d, on=%d\n",
+ __func__, pcl.gpio_ready, on);
+ mutex_unlock(&pcl.status_lock);
+ return -EAGAIN;
+ }
+ if (pcl.power_on != on) {
+ gpiod_set_value_cansleep(pcl.reset_gpio, on);
+ gpiod_set_value_cansleep(pcl.powerdn_gpio, on);
+ gpiod_set_value_cansleep(pcl.clocken_gpio, on);
+ gpiod_set_value_cansleep(pcl.indled_gpio, on);
+ pcl.power_on = on;
+ }
+ mutex_unlock(&pcl.status_lock);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(power_ctrl_logic_set_power);
+
+MODULE_AUTHOR("Bingbu Cao <bingbu.cao at intel.com>");
+MODULE_AUTHOR("Qiu, Tianshu <tian.shu.qiu at intel.com>");
+MODULE_AUTHOR("Xu, Chongyang <chongyang.xu at intel.com>");
+MODULE_DESCRIPTION("Power Control Logic Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/media/i2c/power_ctrl_logic.h b/drivers/media/i2c/power_ctrl_logic.h
new file mode 100644
index 0000000000000..a7967858fbe95
--- /dev/null
+++ b/drivers/media/i2c/power_ctrl_logic.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2020-2021 Intel Corporation. */
+
+#ifndef _POWER_CTRL_LOGIC_H_
+#define _POWER_CTRL_LOGIC_H_
+
+/* exported function for extern module */
+int power_ctrl_logic_set_power(int on);
+#endif
diff --git a/drivers/media/pci/Kconfig b/drivers/media/pci/Kconfig
index 2cd8e328dda92..d144663debda8 100644
--- a/drivers/media/pci/Kconfig
+++ b/drivers/media/pci/Kconfig
@@ -55,7 +55,7 @@ source "drivers/media/pci/smipcie/Kconfig"
source "drivers/media/pci/netup_unidvb/Kconfig"
endif
-source "drivers/media/pci/intel/ipu3/Kconfig"
+source "drivers/media/pci/intel/Kconfig"
config VIDEO_PCI_SKELETON
tristate "Skeleton PCI V4L2 driver"
diff --git a/drivers/media/pci/intel/Kconfig b/drivers/media/pci/intel/Kconfig
new file mode 100644
index 0000000000000..ee4a77acb66f3
--- /dev/null
+++ b/drivers/media/pci/intel/Kconfig
@@ -0,0 +1,20 @@
+config VIDEO_INTEL_IPU6
+ tristate "Intel IPU driver"
+ depends on ACPI
+ depends on MEDIA_SUPPORT
+ depends on MEDIA_PCI_SUPPORT
+ select IOMMU_API
+ select IOMMU_IOVA
+ select X86_DEV_DMA_OPS if X86
+ select VIDEOBUF2_DMA_CONTIG
+ select V4L2_FWNODE
+ select PHYS_ADDR_T_64BIT
+ select COMMON_CLK
+ help
+ This is the Intel imaging processing unit, found in Intel SoCs and
+ used for capturing images and video from a camera sensor.
+
+ To compile this driver, say Y here! It contains 3 modules -
+ intel_ipu6, intel_ipu6_isys and intel_ipu6_psys.
+
+source "drivers/media/pci/intel/ipu3/Kconfig"
diff --git a/drivers/media/pci/intel/Makefile b/drivers/media/pci/intel/Makefile
index 0b4236c4db49a..6e1b92ef63d44 100644
--- a/drivers/media/pci/intel/Makefile
+++ b/drivers/media/pci/intel/Makefile
@@ -3,4 +3,5 @@
# Makefile for the IPU3 cio2 and ImGU drivers
#
-obj-y += ipu3/
+obj-$(CONFIG_VIDEO_IPU3_CIO2) += ipu3/
+obj-$(CONFIG_VIDEO_INTEL_IPU6) += ipu6/
diff --git a/drivers/media/pci/intel/ipu-bus.c b/drivers/media/pci/intel/ipu-bus.c
new file mode 100644
index 0000000000000..d3b7f44c0e8a0
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-bus.c
@@ -0,0 +1,254 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2013 - 2020 Intel Corporation
+
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/pci.h>
+#include <linux/pm_runtime.h>
+#include <linux/sizes.h>
+
+#include "ipu.h"
+#include "ipu-platform.h"
+#include "ipu-dma.h"
+
+#ifdef CONFIG_PM
+static struct bus_type ipu_bus;
+
+static int bus_pm_runtime_suspend(struct device *dev)
+{
+ struct ipu_bus_device *adev = to_ipu_bus_device(dev);
+ int rval;
+
+ rval = pm_generic_runtime_suspend(dev);
+ if (rval)
+ return rval;
+
+ rval = ipu_buttress_power(dev, adev->ctrl, false);
+ dev_dbg(dev, "%s: buttress power down %d\n", __func__, rval);
+ if (!rval)
+ return 0;
+
+ dev_err(dev, "power down failed!\n");
+
+ /* Powering down failed, attempt to resume device now */
+ rval = pm_generic_runtime_resume(dev);
+ if (!rval)
+ return -EBUSY;
+
+ return -EIO;
+}
+
+static int bus_pm_runtime_resume(struct device *dev)
+{
+ struct ipu_bus_device *adev = to_ipu_bus_device(dev);
+ int rval;
+
+ rval = ipu_buttress_power(dev, adev->ctrl, true);
+ dev_dbg(dev, "%s: buttress power up %d\n", __func__, rval);
+ if (rval)
+ return rval;
+
+ rval = pm_generic_runtime_resume(dev);
+ dev_dbg(dev, "%s: resume %d\n", __func__, rval);
+ if (rval)
+ goto out_err;
+
+ return 0;
+
+out_err:
+ ipu_buttress_power(dev, adev->ctrl, false);
+
+ return -EBUSY;
+}
+
+static const struct dev_pm_ops ipu_bus_pm_ops = {
+ .runtime_suspend = bus_pm_runtime_suspend,
+ .runtime_resume = bus_pm_runtime_resume,
+};
+
+#define IPU_BUS_PM_OPS (&ipu_bus_pm_ops)
+#else
+#define IPU_BUS_PM_OPS NULL
+#endif
+
+static int ipu_bus_match(struct device *dev, struct device_driver *drv)
+{
+ struct ipu_bus_driver *adrv = to_ipu_bus_driver(drv);
+
+ dev_dbg(dev, "bus match: \"%s\" --- \"%s\"\n", dev_name(dev),
+ adrv->wanted);
+
+ return !strncmp(dev_name(dev), adrv->wanted, strlen(adrv->wanted));
+}
+
+static int ipu_bus_probe(struct device *dev)
+{
+ struct ipu_bus_device *adev = to_ipu_bus_device(dev);
+ struct ipu_bus_driver *adrv = to_ipu_bus_driver(dev->driver);
+ int rval;
+
+ dev_dbg(dev, "bus probe dev %s\n", dev_name(dev));
+
+ adev->adrv = adrv;
+ if (!adrv->probe) {
+ rval = -ENODEV;
+ goto out_err;
+ }
+ rval = pm_runtime_get_sync(&adev->dev);
+ if (rval < 0) {
+ dev_err(&adev->dev, "Failed to get runtime PM\n");
+ goto out_err;
+ }
+
+ rval = adrv->probe(adev);
+ pm_runtime_put(&adev->dev);
+
+ if (rval)
+ goto out_err;
+
+ return 0;
+
+out_err:
+ ipu_bus_set_drvdata(adev, NULL);
+ adev->adrv = NULL;
+
+ return rval;
+}
+
+static void ipu_bus_remove(struct device *dev)
+{
+ struct ipu_bus_device *adev = to_ipu_bus_device(dev);
+ struct ipu_bus_driver *adrv = to_ipu_bus_driver(dev->driver);
+
+ if (adrv->remove)
+ adrv->remove(adev);
+}
+
+static struct bus_type ipu_bus = {
+ .name = IPU_BUS_NAME,
+ .match = ipu_bus_match,
+ .probe = ipu_bus_probe,
+ .remove = ipu_bus_remove,
+ .pm = IPU_BUS_PM_OPS,
+};
+
+static struct mutex ipu_bus_mutex;
+
+static void ipu_bus_release(struct device *dev)
+{
+}
+
+struct ipu_bus_device *ipu_bus_add_device(struct pci_dev *pdev,
+ struct device *parent, void *pdata,
+ struct ipu_buttress_ctrl *ctrl,
+ char *name, unsigned int nr)
+{
+ struct ipu_bus_device *adev;
+ struct ipu_device *isp = pci_get_drvdata(pdev);
+ int rval;
+
+ adev = devm_kzalloc(&pdev->dev, sizeof(*adev), GFP_KERNEL);
+ if (!adev)
+ return ERR_PTR(-ENOMEM);
+
+ adev->dev.parent = parent;
+ adev->dev.bus = &ipu_bus;
+ adev->dev.release = ipu_bus_release;
+ adev->dev.dma_ops = &ipu_dma_ops;
+ adev->dma_mask = DMA_BIT_MASK(isp->secure_mode ?
+ IPU_MMU_ADDRESS_BITS :
+ IPU_MMU_ADDRESS_BITS_NON_SECURE);
+ adev->dev.dma_mask = &adev->dma_mask;
+ adev->dev.dma_parms = pdev->dev.dma_parms;
+ adev->dev.coherent_dma_mask = adev->dma_mask;
+ adev->ctrl = ctrl;
+ adev->pdata = pdata;
+ adev->isp = isp;
+ mutex_init(&adev->resume_lock);
+ dev_set_name(&adev->dev, "%s%d", name, nr);
+
+ rval = device_register(&adev->dev);
+ if (rval) {
+ put_device(&adev->dev);
+ return ERR_PTR(rval);
+ }
+
+ mutex_lock(&ipu_bus_mutex);
+ list_add(&adev->list, &isp->devices);
+ mutex_unlock(&ipu_bus_mutex);
+
+ pm_runtime_allow(&adev->dev);
+ pm_runtime_enable(&adev->dev);
+
+ return adev;
+}
+
+void ipu_bus_del_devices(struct pci_dev *pdev)
+{
+ struct ipu_device *isp = pci_get_drvdata(pdev);
+ struct ipu_bus_device *adev, *save;
+
+ mutex_lock(&ipu_bus_mutex);
+
+ list_for_each_entry_safe(adev, save, &isp->devices, list) {
+ pm_runtime_disable(&adev->dev);
+ list_del(&adev->list);
+ device_unregister(&adev->dev);
+ }
+
+ mutex_unlock(&ipu_bus_mutex);
+}
+
+int ipu_bus_register_driver(struct ipu_bus_driver *adrv)
+{
+ adrv->drv.bus = &ipu_bus;
+ return driver_register(&adrv->drv);
+}
+EXPORT_SYMBOL(ipu_bus_register_driver);
+
+int ipu_bus_unregister_driver(struct ipu_bus_driver *adrv)
+{
+ driver_unregister(&adrv->drv);
+ return 0;
+}
+EXPORT_SYMBOL(ipu_bus_unregister_driver);
+
+int ipu_bus_register(void)
+{
+ mutex_init(&ipu_bus_mutex);
+ return bus_register(&ipu_bus);
+}
+
+void ipu_bus_unregister(void)
+{
+ mutex_destroy(&ipu_bus_mutex);
+ return bus_unregister(&ipu_bus);
+}
+
+static int flr_rpm_recovery(struct device *dev, void *p)
+{
+ dev_dbg(dev, "FLR recovery call\n");
+ /*
+ * We are not necessarily going through device from child to
+ * parent. runtime PM refuses to change state for parent if the child
+ * is still active. At FLR (full reset for whole IPU) that doesn't
+ * matter. Everything has been power gated by HW during the FLR cycle
+ * and we are just cleaning up SW state. Thus, ignore child during
+ * set_suspended.
+ */
+ pm_suspend_ignore_children(dev, true);
+ pm_runtime_set_suspended(dev);
+ pm_suspend_ignore_children(dev, false);
+
+ return 0;
+}
+
+int ipu_bus_flr_recovery(void)
+{
+ bus_for_each_dev(&ipu_bus, NULL, NULL, flr_rpm_recovery);
+ return 0;
+}
diff --git a/drivers/media/pci/intel/ipu-bus.h b/drivers/media/pci/intel/ipu-bus.h
new file mode 100644
index 0000000000000..1108cd377705d
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-bus.h
@@ -0,0 +1,67 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2013 - 2020 Intel Corporation */
+
+#ifndef IPU_BUS_H
+#define IPU_BUS_H
+
+#include <linux/device.h>
+#include <linux/irqreturn.h>
+#include <linux/list.h>
+#include <linux/mm.h>
+#include <linux/pci.h>
+
+#define IPU_BUS_NAME IPU_NAME "-bus"
+
+struct ipu_buttress_ctrl;
+struct ipu_subsystem_trace_config;
+
+struct ipu_bus_device {
+ struct device dev;
+ struct list_head list;
+ void *pdata;
+ struct ipu_bus_driver *adrv;
+ struct ipu_mmu *mmu;
+ struct ipu_device *isp;
+ struct ipu_subsystem_trace_config *trace_cfg;
+ struct ipu_buttress_ctrl *ctrl;
+ u64 dma_mask;
+ /* Protect runtime_resume calls on the dev */
+ struct mutex resume_lock;
+};
+
+#define to_ipu_bus_device(_dev) container_of(_dev, struct ipu_bus_device, dev)
+
+struct ipu_bus_driver {
+ struct device_driver drv;
+ const char *wanted;
+ int (*probe)(struct ipu_bus_device *adev);
+ void (*remove)(struct ipu_bus_device *adev);
+ irqreturn_t (*isr)(struct ipu_bus_device *adev);
+ irqreturn_t (*isr_threaded)(struct ipu_bus_device *adev);
+ bool wake_isr_thread;
+};
+
+#define to_ipu_bus_driver(_drv) container_of(_drv, struct ipu_bus_driver, drv)
+
+struct ipu_bus_device *ipu_bus_add_device(struct pci_dev *pdev,
+ struct device *parent, void *pdata,
+ struct ipu_buttress_ctrl *ctrl,
+ char *name, unsigned int nr);
+void ipu_bus_del_devices(struct pci_dev *pdev);
+
+int ipu_bus_register_driver(struct ipu_bus_driver *adrv);
+int ipu_bus_unregister_driver(struct ipu_bus_driver *adrv);
+
+int ipu_bus_register(void);
+void ipu_bus_unregister(void);
+
+#define module_ipu_bus_driver(drv) \
+ module_driver(drv, ipu_bus_register_driver, \
+ ipu_bus_unregister_driver)
+
+#define ipu_bus_set_drvdata(adev, data) dev_set_drvdata(&(adev)->dev, data)
+#define ipu_bus_get_drvdata(adev) dev_get_drvdata(&(adev)->dev)
+
+int ipu_bus_flr_recovery(void);
+
+#endif
diff --git a/drivers/media/pci/intel/ipu-buttress.c b/drivers/media/pci/intel/ipu-buttress.c
new file mode 100644
index 0000000000000..bf0b7916b381a
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-buttress.c
@@ -0,0 +1,1372 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2013 - 2020 Intel Corporation
+
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/completion.h>
+#include <linux/debugfs.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/elf.h>
+#include <linux/errno.h>
+#include <linux/firmware.h>
+#include <linux/iopoll.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/pm_runtime.h>
+
+#include <media/ipu-isys.h>
+
+#include "ipu.h"
+#include "ipu-bus.h"
+#include "ipu-buttress.h"
+#include "ipu-platform-buttress-regs.h"
+#include "ipu-cpd.h"
+
+#define BOOTLOADER_STATUS_OFFSET 0x15c
+
+#define BOOTLOADER_MAGIC_KEY 0xb00710ad
+
+#define ENTRY BUTTRESS_IU2CSECSR_IPC_PEER_COMP_ACTIONS_RST_PHASE1
+#define EXIT BUTTRESS_IU2CSECSR_IPC_PEER_COMP_ACTIONS_RST_PHASE2
+#define QUERY BUTTRESS_IU2CSECSR_IPC_PEER_QUERIED_IP_COMP_ACTIONS_RST_PHASE
+
+#define BUTTRESS_TSC_SYNC_RESET_TRIAL_MAX 10
+
+#define BUTTRESS_CSE_BOOTLOAD_TIMEOUT 5000000
+#define BUTTRESS_CSE_AUTHENTICATE_TIMEOUT 10000000
+#define BUTTRESS_CSE_FWRESET_TIMEOUT 100000
+
+#define BUTTRESS_IPC_TX_TIMEOUT 1000
+#define BUTTRESS_IPC_RESET_TIMEOUT 2000
+#define BUTTRESS_IPC_RX_TIMEOUT 1000
+#define BUTTRESS_IPC_VALIDITY_TIMEOUT 1000000
+#define BUTTRESS_TSC_SYNC_TIMEOUT 5000
+
+#define IPU_BUTTRESS_TSC_LIMIT 500 /* 26 us @ 19.2 MHz */
+#define IPU_BUTTRESS_TSC_RETRY 10
+
+#define BUTTRESS_CSE_IPC_RESET_RETRY 4
+
+#define BUTTRESS_IPC_CMD_SEND_RETRY 1
+
+static const u32 ipu_adev_irq_mask[] = {
+ BUTTRESS_ISR_IS_IRQ, BUTTRESS_ISR_PS_IRQ
+};
+
+int ipu_buttress_ipc_reset(struct ipu_device *isp, struct ipu_buttress_ipc *ipc)
+{
+ struct ipu_buttress *b = &isp->buttress;
+ unsigned int retries = BUTTRESS_IPC_RESET_TIMEOUT;
+ u32 val = 0, csr_in_clr;
+
+ if (!isp->secure_mode) {
+ dev_info(&isp->pdev->dev, "Skip ipc reset for non-secure mode");
+ return 0;
+ }
+
+ mutex_lock(&b->ipc_mutex);
+
+ /* Clear-by-1 CSR (all bits), corresponding internal states. */
+ val = readl(isp->base + ipc->csr_in);
+ writel(val, isp->base + ipc->csr_in);
+
+ /* Set peer CSR bit IPC_PEER_COMP_ACTIONS_RST_PHASE1 */
+ writel(ENTRY, isp->base + ipc->csr_out);
+ /*
+ * Clear-by-1 all CSR bits EXCEPT following
+ * bits:
+ * A. IPC_PEER_COMP_ACTIONS_RST_PHASE1.
+ * B. IPC_PEER_COMP_ACTIONS_RST_PHASE2.
+ * C. Possibly custom bits, depending on
+ * their role.
+ */
+ csr_in_clr = BUTTRESS_IU2CSECSR_IPC_PEER_DEASSERTED_REG_VALID_REQ |
+ BUTTRESS_IU2CSECSR_IPC_PEER_ACKED_REG_VALID |
+ BUTTRESS_IU2CSECSR_IPC_PEER_ASSERTED_REG_VALID_REQ | QUERY;
+
+ while (retries--) {
+ usleep_range(400, 500);
+ val = readl(isp->base + ipc->csr_in);
+ switch (val) {
+ case (ENTRY | EXIT):
+ case (ENTRY | EXIT | QUERY):
+ dev_dbg(&isp->pdev->dev,
+ "%s:%s & %s\n", __func__,
+ "IPC_PEER_COMP_ACTIONS_RST_PHASE1",
+ "IPC_PEER_COMP_ACTIONS_RST_PHASE2");
+ /*
+ * 1) Clear-by-1 CSR bits
+ * (IPC_PEER_COMP_ACTIONS_RST_PHASE1,
+ * IPC_PEER_COMP_ACTIONS_RST_PHASE2).
+ * 2) Set peer CSR bit
+ * IPC_PEER_QUERIED_IP_COMP_ACTIONS_RST_PHASE.
+ */
+ writel(ENTRY | EXIT, isp->base + ipc->csr_in);
+ writel(QUERY, isp->base + ipc->csr_out);
+ break;
+ case ENTRY:
+ case (ENTRY | QUERY):
+ dev_dbg(&isp->pdev->dev,
+ "%s:IPC_PEER_COMP_ACTIONS_RST_PHASE1\n",
+ __func__);
+ /*
+ * 1) Clear-by-1 CSR bits
+ * (IPC_PEER_COMP_ACTIONS_RST_PHASE1,
+ * IPC_PEER_QUERIED_IP_COMP_ACTIONS_RST_PHASE).
+ * 2) Set peer CSR bit
+ * IPC_PEER_COMP_ACTIONS_RST_PHASE1.
+ */
+ writel(ENTRY | QUERY, isp->base + ipc->csr_in);
+ writel(ENTRY, isp->base + ipc->csr_out);
+ break;
+ case EXIT:
+ case (EXIT | QUERY):
+ dev_dbg(&isp->pdev->dev,
+ "%s: IPC_PEER_COMP_ACTIONS_RST_PHASE2\n",
+ __func__);
+ /*
+ * Clear-by-1 CSR bit
+ * IPC_PEER_COMP_ACTIONS_RST_PHASE2.
+ * 1) Clear incoming doorbell.
+ * 2) Clear-by-1 all CSR bits EXCEPT following
+ * bits:
+ * A. IPC_PEER_COMP_ACTIONS_RST_PHASE1.
+ * B. IPC_PEER_COMP_ACTIONS_RST_PHASE2.
+ * C. Possibly custom bits, depending on
+ * their role.
+ * 3) Set peer CSR bit
+ * IPC_PEER_COMP_ACTIONS_RST_PHASE2.
+ */
+ writel(EXIT, isp->base + ipc->csr_in);
+ writel(0, isp->base + ipc->db0_in);
+ writel(csr_in_clr, isp->base + ipc->csr_in);
+ writel(EXIT, isp->base + ipc->csr_out);
+
+ /*
+ * Read csr_in again to make sure if RST_PHASE2 is done.
+ * If csr_in is QUERY, it should be handled again.
+ */
+ usleep_range(200, 300);
+ val = readl(isp->base + ipc->csr_in);
+ if (val & QUERY) {
+ dev_dbg(&isp->pdev->dev,
+ "%s: RST_PHASE2 retry csr_in = %x\n",
+ __func__, val);
+ break;
+ }
+ mutex_unlock(&b->ipc_mutex);
+ return 0;
+ case QUERY:
+ dev_dbg(&isp->pdev->dev,
+ "%s: %s\n", __func__,
+ "IPC_PEER_QUERIED_IP_COMP_ACTIONS_RST_PHASE");
+ /*
+ * 1) Clear-by-1 CSR bit
+ * IPC_PEER_QUERIED_IP_COMP_ACTIONS_RST_PHASE.
+ * 2) Set peer CSR bit
+ * IPC_PEER_COMP_ACTIONS_RST_PHASE1
+ */
+ writel(QUERY, isp->base + ipc->csr_in);
+ writel(ENTRY, isp->base + ipc->csr_out);
+ break;
+ default:
+ dev_dbg_ratelimited(&isp->pdev->dev,
+ "%s: unexpected CSR 0x%x\n",
+ __func__, val);
+ break;
+ }
+ }
+
+ mutex_unlock(&b->ipc_mutex);
+ dev_err(&isp->pdev->dev, "Timed out while waiting for CSE\n");
+
+ return -ETIMEDOUT;
+}
+
+static void
+ipu_buttress_ipc_validity_close(struct ipu_device *isp,
+ struct ipu_buttress_ipc *ipc)
+{
+ /* Set bit 5 in CSE CSR */
+ writel(BUTTRESS_IU2CSECSR_IPC_PEER_DEASSERTED_REG_VALID_REQ,
+ isp->base + ipc->csr_out);
+}
+
+static int
+ipu_buttress_ipc_validity_open(struct ipu_device *isp,
+ struct ipu_buttress_ipc *ipc)
+{
+ unsigned int mask = BUTTRESS_IU2CSECSR_IPC_PEER_ACKED_REG_VALID;
+ unsigned int tout = BUTTRESS_IPC_VALIDITY_TIMEOUT;
+ void __iomem *addr;
+ int ret;
+ u32 val;
+
+ /* Set bit 3 in CSE CSR */
+ writel(BUTTRESS_IU2CSECSR_IPC_PEER_ASSERTED_REG_VALID_REQ,
+ isp->base + ipc->csr_out);
+
+ addr = isp->base + ipc->csr_in;
+ ret = readl_poll_timeout(addr, val, val & mask, 200, tout);
+ if (ret) {
+ val = readl(addr);
+ dev_err(&isp->pdev->dev, "CSE validity timeout 0x%x\n", val);
+ ipu_buttress_ipc_validity_close(isp, ipc);
+ }
+
+ return ret;
+}
+
+static void ipu_buttress_ipc_recv(struct ipu_device *isp,
+ struct ipu_buttress_ipc *ipc, u32 *ipc_msg)
+{
+ if (ipc_msg)
+ *ipc_msg = readl(isp->base + ipc->data0_in);
+ writel(0, isp->base + ipc->db0_in);
+}
+
+static int ipu_buttress_ipc_send_bulk(struct ipu_device *isp,
+ enum ipu_buttress_ipc_domain ipc_domain,
+ struct ipu_ipc_buttress_bulk_msg *msgs,
+ u32 size)
+{
+ struct ipu_buttress *b = &isp->buttress;
+ struct ipu_buttress_ipc *ipc;
+ unsigned long tx_timeout_jiffies, rx_timeout_jiffies;
+ u32 val;
+ int ret;
+ int tout;
+ unsigned int i, retry = BUTTRESS_IPC_CMD_SEND_RETRY;
+
+ ipc = ipc_domain == IPU_BUTTRESS_IPC_CSE ? &b->cse : &b->ish;
+
+ mutex_lock(&b->ipc_mutex);
+
+ ret = ipu_buttress_ipc_validity_open(isp, ipc);
+ if (ret) {
+ dev_err(&isp->pdev->dev, "IPC validity open failed\n");
+ goto out;
+ }
+
+ tx_timeout_jiffies = msecs_to_jiffies(BUTTRESS_IPC_TX_TIMEOUT);
+ rx_timeout_jiffies = msecs_to_jiffies(BUTTRESS_IPC_RX_TIMEOUT);
+
+ for (i = 0; i < size; i++) {
+ reinit_completion(&ipc->send_complete);
+ if (msgs[i].require_resp)
+ reinit_completion(&ipc->recv_complete);
+
+ dev_dbg(&isp->pdev->dev, "bulk IPC command: 0x%x\n",
+ msgs[i].cmd);
+ writel(msgs[i].cmd, isp->base + ipc->data0_out);
+
+ val = BUTTRESS_IU2CSEDB0_BUSY | msgs[i].cmd_size;
+
+ writel(val, isp->base + ipc->db0_out);
+
+ tout = wait_for_completion_timeout(&ipc->send_complete,
+ tx_timeout_jiffies);
+ if (!tout) {
+ dev_err(&isp->pdev->dev, "send IPC response timeout\n");
+ if (!retry--) {
+ ret = -ETIMEDOUT;
+ goto out;
+ }
+
+ /*
+ * WORKAROUND: Sometimes CSE is not
+ * responding on first try, try again.
+ */
+ writel(0, isp->base + ipc->db0_out);
+ i--;
+ continue;
+ }
+
+ retry = BUTTRESS_IPC_CMD_SEND_RETRY;
+
+ if (!msgs[i].require_resp)
+ continue;
+
+ tout = wait_for_completion_timeout(&ipc->recv_complete,
+ rx_timeout_jiffies);
+ if (!tout) {
+ dev_err(&isp->pdev->dev, "recv IPC response timeout\n");
+ ret = -ETIMEDOUT;
+ goto out;
+ }
+
+ if (ipc->nack_mask &&
+ (ipc->recv_data & ipc->nack_mask) == ipc->nack) {
+ dev_err(&isp->pdev->dev,
+ "IPC NACK for cmd 0x%x\n", msgs[i].cmd);
+ ret = -ENODEV;
+ goto out;
+ }
+
+ if (ipc->recv_data != msgs[i].expected_resp) {
+ dev_err(&isp->pdev->dev,
+ "expected resp: 0x%x, IPC response: 0x%x ",
+ msgs[i].expected_resp, ipc->recv_data);
+ ret = -EIO;
+ goto out;
+ }
+ }
+
+ dev_dbg(&isp->pdev->dev, "bulk IPC commands done\n");
+
+out:
+ ipu_buttress_ipc_validity_close(isp, ipc);
+ mutex_unlock(&b->ipc_mutex);
+ return ret;
+}
+
+static int
+ipu_buttress_ipc_send(struct ipu_device *isp,
+ enum ipu_buttress_ipc_domain ipc_domain,
+ u32 ipc_msg, u32 size, bool require_resp,
+ u32 expected_resp)
+{
+ struct ipu_ipc_buttress_bulk_msg msg = {
+ .cmd = ipc_msg,
+ .cmd_size = size,
+ .require_resp = require_resp,
+ .expected_resp = expected_resp,
+ };
+
+ return ipu_buttress_ipc_send_bulk(isp, ipc_domain, &msg, 1);
+}
+
+static irqreturn_t ipu_buttress_call_isr(struct ipu_bus_device *adev)
+{
+ irqreturn_t ret = IRQ_WAKE_THREAD;
+
+ if (!adev || !adev->adrv)
+ return IRQ_NONE;
+
+ if (adev->adrv->isr)
+ ret = adev->adrv->isr(adev);
+
+ if (ret == IRQ_WAKE_THREAD && !adev->adrv->isr_threaded)
+ ret = IRQ_NONE;
+
+ adev->adrv->wake_isr_thread = (ret == IRQ_WAKE_THREAD);
+
+ return ret;
+}
+
+irqreturn_t ipu_buttress_isr(int irq, void *isp_ptr)
+{
+ struct ipu_device *isp = isp_ptr;
+ struct ipu_bus_device *adev[] = { isp->isys, isp->psys };
+ struct ipu_buttress *b = &isp->buttress;
+ irqreturn_t ret = IRQ_NONE;
+ u32 disable_irqs = 0;
+ u32 irq_status;
+ u32 reg_irq_sts = BUTTRESS_REG_ISR_STATUS;
+ unsigned int i;
+
+ pm_runtime_get(&isp->pdev->dev);
+
+ if (!pm_runtime_active(&isp->pdev->dev)) {
+ irq_status = readl(isp->base + reg_irq_sts);
+ writel(irq_status, isp->base + BUTTRESS_REG_ISR_CLEAR);
+ pm_runtime_put(&isp->pdev->dev);
+ return IRQ_HANDLED;
+ }
+
+ irq_status = readl(isp->base + reg_irq_sts);
+ if (!irq_status) {
+ pm_runtime_put(&isp->pdev->dev);
+ return IRQ_NONE;
+ }
+
+ do {
+ writel(irq_status, isp->base + BUTTRESS_REG_ISR_CLEAR);
+
+ for (i = 0; i < ARRAY_SIZE(ipu_adev_irq_mask); i++) {
+ if (irq_status & ipu_adev_irq_mask[i]) {
+ irqreturn_t r = ipu_buttress_call_isr(adev[i]);
+
+ if (r == IRQ_WAKE_THREAD) {
+ ret = IRQ_WAKE_THREAD;
+ disable_irqs |= ipu_adev_irq_mask[i];
+ } else if (ret == IRQ_NONE &&
+ r == IRQ_HANDLED) {
+ ret = IRQ_HANDLED;
+ }
+ }
+ }
+
+ if (irq_status & (BUTTRESS_ISR_IPC_FROM_CSE_IS_WAITING |
+ BUTTRESS_ISR_IPC_FROM_ISH_IS_WAITING |
+ BUTTRESS_ISR_IPC_EXEC_DONE_BY_CSE |
+ BUTTRESS_ISR_IPC_EXEC_DONE_BY_ISH |
+ BUTTRESS_ISR_SAI_VIOLATION) &&
+ ret == IRQ_NONE)
+ ret = IRQ_HANDLED;
+
+ if (irq_status & BUTTRESS_ISR_IPC_FROM_CSE_IS_WAITING) {
+ dev_dbg(&isp->pdev->dev,
+ "BUTTRESS_ISR_IPC_FROM_CSE_IS_WAITING\n");
+ ipu_buttress_ipc_recv(isp, &b->cse, &b->cse.recv_data);
+ complete(&b->cse.recv_complete);
+ }
+
+ if (irq_status & BUTTRESS_ISR_IPC_FROM_ISH_IS_WAITING) {
+ dev_dbg(&isp->pdev->dev,
+ "BUTTRESS_ISR_IPC_FROM_ISH_IS_WAITING\n");
+ ipu_buttress_ipc_recv(isp, &b->ish, &b->ish.recv_data);
+ complete(&b->ish.recv_complete);
+ }
+
+ if (irq_status & BUTTRESS_ISR_IPC_EXEC_DONE_BY_CSE) {
+ dev_dbg(&isp->pdev->dev,
+ "BUTTRESS_ISR_IPC_EXEC_DONE_BY_CSE\n");
+ complete(&b->cse.send_complete);
+ }
+
+ if (irq_status & BUTTRESS_ISR_IPC_EXEC_DONE_BY_ISH) {
+ dev_dbg(&isp->pdev->dev,
+ "BUTTRESS_ISR_IPC_EXEC_DONE_BY_CSE\n");
+ complete(&b->ish.send_complete);
+ }
+
+ if (irq_status & BUTTRESS_ISR_SAI_VIOLATION &&
+ ipu_buttress_get_secure_mode(isp)) {
+ dev_err(&isp->pdev->dev,
+ "BUTTRESS_ISR_SAI_VIOLATION\n");
+ WARN_ON(1);
+ }
+
+ irq_status = readl(isp->base + reg_irq_sts);
+ } while (irq_status && !isp->flr_done);
+
+ if (disable_irqs)
+ writel(BUTTRESS_IRQS & ~disable_irqs,
+ isp->base + BUTTRESS_REG_ISR_ENABLE);
+
+ pm_runtime_put(&isp->pdev->dev);
+
+ return ret;
+}
+
+irqreturn_t ipu_buttress_isr_threaded(int irq, void *isp_ptr)
+{
+ struct ipu_device *isp = isp_ptr;
+ struct ipu_bus_device *adev[] = { isp->isys, isp->psys };
+ irqreturn_t ret = IRQ_NONE;
+ unsigned int i;
+
+ dev_dbg(&isp->pdev->dev, "isr: Buttress threaded interrupt handler\n");
+
+ for (i = 0; i < ARRAY_SIZE(ipu_adev_irq_mask); i++) {
+ if (adev[i] && adev[i]->adrv &&
+ adev[i]->adrv->wake_isr_thread &&
+ adev[i]->adrv->isr_threaded(adev[i]) == IRQ_HANDLED)
+ ret = IRQ_HANDLED;
+ }
+
+ writel(BUTTRESS_IRQS, isp->base + BUTTRESS_REG_ISR_ENABLE);
+
+ return ret;
+}
+
+int ipu_buttress_power(struct device *dev,
+ struct ipu_buttress_ctrl *ctrl, bool on)
+{
+ struct ipu_device *isp = to_ipu_bus_device(dev)->isp;
+ u32 pwr_sts, val;
+ int ret = 0;
+
+ if (!ctrl)
+ return 0;
+
+ /* Until FLR completion nothing is expected to work */
+ if (isp->flr_done)
+ return 0;
+
+ mutex_lock(&isp->buttress.power_mutex);
+
+ if (!on) {
+ val = 0;
+ pwr_sts = ctrl->pwr_sts_off << ctrl->pwr_sts_shift;
+ } else {
+ val = BUTTRESS_FREQ_CTL_START |
+ ctrl->divisor << ctrl->divisor_shift |
+ ctrl->qos_floor << BUTTRESS_FREQ_CTL_QOS_FLOOR_SHIFT |
+ BUTTRESS_FREQ_CTL_ICCMAX_LEVEL;
+
+ pwr_sts = ctrl->pwr_sts_on << ctrl->pwr_sts_shift;
+ }
+
+ writel(val, isp->base + ctrl->freq_ctl);
+
+ ret = readl_poll_timeout(isp->base + BUTTRESS_REG_PWR_STATE,
+ val, ((val & ctrl->pwr_sts_mask) == pwr_sts),
+ 100, BUTTRESS_POWER_TIMEOUT);
+ if (ret)
+ dev_err(&isp->pdev->dev,
+ "Change power status timeout with 0x%x\n", val);
+
+ ctrl->started = !ret && on;
+
+ mutex_unlock(&isp->buttress.power_mutex);
+
+ return ret;
+}
+
+static bool secure_mode_enable = 1;
+module_param(secure_mode_enable, bool, 0660);
+MODULE_PARM_DESC(secure_mode, "IPU secure mode enable");
+
+void ipu_buttress_set_secure_mode(struct ipu_device *isp)
+{
+ u8 retry = 100;
+ u32 val, read;
+
+ /*
+ * HACK to disable possible secure mode. This can be
+ * reverted when CSE is disabling the secure mode
+ */
+ read = readl(isp->base + BUTTRESS_REG_SECURITY_CTL);
+
+ if (secure_mode_enable)
+ val = read |= BUTTRESS_SECURITY_CTL_FW_SECURE_MODE;
+ else
+ val = read & ~BUTTRESS_SECURITY_CTL_FW_SECURE_MODE;
+
+ if (val == read)
+ return;
+
+ writel(val, isp->base + BUTTRESS_REG_SECURITY_CTL);
+
+ /* In B0, for some registers in buttress, because of a hw bug, write
+ * might not succeed at first attempt. Write twice until the
+ * write is successful
+ */
+ writel(val, isp->base + BUTTRESS_REG_SECURITY_CTL);
+
+ while (retry--) {
+ read = readl(isp->base + BUTTRESS_REG_SECURITY_CTL);
+ if (read == val)
+ break;
+
+ writel(val, isp->base + BUTTRESS_REG_SECURITY_CTL);
+
+ if (retry == 0)
+ dev_err(&isp->pdev->dev,
+ "update security control register failed\n");
+ }
+}
+
+bool ipu_buttress_get_secure_mode(struct ipu_device *isp)
+{
+ u32 val;
+
+ val = readl(isp->base + BUTTRESS_REG_SECURITY_CTL);
+
+ return val & BUTTRESS_SECURITY_CTL_FW_SECURE_MODE;
+}
+
+bool ipu_buttress_auth_done(struct ipu_device *isp)
+{
+ u32 val;
+
+ if (!isp->secure_mode)
+ return 1;
+
+ val = readl(isp->base + BUTTRESS_REG_SECURITY_CTL);
+
+ return (val & BUTTRESS_SECURITY_CTL_FW_SETUP_MASK) ==
+ BUTTRESS_SECURITY_CTL_AUTH_DONE;
+}
+EXPORT_SYMBOL(ipu_buttress_auth_done);
+
+static void ipu_buttress_set_psys_ratio(struct ipu_device *isp,
+ unsigned int psys_divisor,
+ unsigned int psys_qos_floor)
+{
+ struct ipu_buttress_ctrl *ctrl = isp->psys->ctrl;
+
+ mutex_lock(&isp->buttress.power_mutex);
+
+ if (ctrl->divisor == psys_divisor && ctrl->qos_floor == psys_qos_floor)
+ goto out_mutex_unlock;
+
+ ctrl->divisor = psys_divisor;
+ ctrl->qos_floor = psys_qos_floor;
+
+ if (ctrl->started) {
+ /*
+ * According to documentation driver initiates DVFS
+ * transition by writing wanted ratio, floor ratio and start
+ * bit. No need to stop PS first
+ */
+ writel(BUTTRESS_FREQ_CTL_START |
+ ctrl->qos_floor << BUTTRESS_FREQ_CTL_QOS_FLOOR_SHIFT |
+ psys_divisor, isp->base + BUTTRESS_REG_PS_FREQ_CTL);
+ }
+
+out_mutex_unlock:
+ mutex_unlock(&isp->buttress.power_mutex);
+}
+
+static void ipu_buttress_set_isys_ratio(struct ipu_device *isp,
+ unsigned int isys_divisor)
+{
+ struct ipu_buttress_ctrl *ctrl = isp->isys->ctrl;
+
+ mutex_lock(&isp->buttress.power_mutex);
+
+ if (ctrl->divisor == isys_divisor)
+ goto out_mutex_unlock;
+
+ ctrl->divisor = isys_divisor;
+
+ if (ctrl->started) {
+ writel(BUTTRESS_FREQ_CTL_START |
+ ctrl->qos_floor << BUTTRESS_FREQ_CTL_QOS_FLOOR_SHIFT |
+ isys_divisor, isp->base + BUTTRESS_REG_IS_FREQ_CTL);
+ }
+
+out_mutex_unlock:
+ mutex_unlock(&isp->buttress.power_mutex);
+}
+
+static void ipu_buttress_set_psys_freq(struct ipu_device *isp,
+ unsigned int freq)
+{
+ unsigned int psys_ratio = freq / BUTTRESS_PS_FREQ_STEP;
+
+ if (isp->buttress.psys_force_ratio)
+ return;
+
+ ipu_buttress_set_psys_ratio(isp, psys_ratio, psys_ratio);
+}
+
+void
+ipu_buttress_add_psys_constraint(struct ipu_device *isp,
+ struct ipu_buttress_constraint *constraint)
+{
+ struct ipu_buttress *b = &isp->buttress;
+
+ mutex_lock(&b->cons_mutex);
+ list_add(&constraint->list, &b->constraints);
+
+ if (constraint->min_freq > b->psys_min_freq) {
+ isp->buttress.psys_min_freq = min(constraint->min_freq,
+ b->psys_fused_freqs.max_freq);
+ ipu_buttress_set_psys_freq(isp, b->psys_min_freq);
+ }
+ mutex_unlock(&b->cons_mutex);
+}
+EXPORT_SYMBOL_GPL(ipu_buttress_add_psys_constraint);
+
+void
+ipu_buttress_remove_psys_constraint(struct ipu_device *isp,
+ struct ipu_buttress_constraint *constraint)
+{
+ struct ipu_buttress *b = &isp->buttress;
+ struct ipu_buttress_constraint *c;
+ unsigned int min_freq = 0;
+
+ mutex_lock(&b->cons_mutex);
+ list_del(&constraint->list);
+
+ if (constraint->min_freq >= b->psys_min_freq) {
+ list_for_each_entry(c, &b->constraints, list)
+ if (c->min_freq > min_freq)
+ min_freq = c->min_freq;
+
+ b->psys_min_freq = clamp(min_freq,
+ b->psys_fused_freqs.efficient_freq,
+ b->psys_fused_freqs.max_freq);
+ ipu_buttress_set_psys_freq(isp, b->psys_min_freq);
+ }
+ mutex_unlock(&b->cons_mutex);
+}
+EXPORT_SYMBOL_GPL(ipu_buttress_remove_psys_constraint);
+
+int ipu_buttress_reset_authentication(struct ipu_device *isp)
+{
+ int ret;
+ u32 val;
+
+ if (!isp->secure_mode) {
+ dev_dbg(&isp->pdev->dev,
+ "Non-secure mode -> skip authentication\n");
+ return 0;
+ }
+
+ writel(BUTTRESS_FW_RESET_CTL_START, isp->base +
+ BUTTRESS_REG_FW_RESET_CTL);
+
+ ret = readl_poll_timeout(isp->base + BUTTRESS_REG_FW_RESET_CTL, val,
+ val & BUTTRESS_FW_RESET_CTL_DONE, 500,
+ BUTTRESS_CSE_FWRESET_TIMEOUT);
+ if (ret) {
+ dev_err(&isp->pdev->dev,
+ "Time out while resetting authentication state\n");
+ } else {
+ dev_info(&isp->pdev->dev,
+ "FW reset for authentication done\n");
+ writel(0, isp->base + BUTTRESS_REG_FW_RESET_CTL);
+ /* leave some time for HW restore */
+ usleep_range(800, 1000);
+ }
+
+ return ret;
+}
+
+int ipu_buttress_map_fw_image(struct ipu_bus_device *sys,
+ const struct firmware *fw, struct sg_table *sgt)
+{
+ struct page **pages;
+ const void *addr;
+ unsigned long n_pages, i;
+ int rval;
+
+ n_pages = PAGE_ALIGN(fw->size) >> PAGE_SHIFT;
+
+ pages = kmalloc_array(n_pages, sizeof(*pages), GFP_KERNEL);
+ if (!pages)
+ return -ENOMEM;
+
+ addr = fw->data;
+ for (i = 0; i < n_pages; i++) {
+ struct page *p = vmalloc_to_page(addr);
+
+ if (!p) {
+ rval = -ENODEV;
+ goto out;
+ }
+ pages[i] = p;
+ addr += PAGE_SIZE;
+ }
+
+ rval = sg_alloc_table_from_pages(sgt, pages, n_pages, 0, fw->size,
+ GFP_KERNEL);
+ if (rval) {
+ rval = -ENOMEM;
+ goto out;
+ }
+
+ n_pages = dma_map_sg(&sys->dev, sgt->sgl, sgt->nents, DMA_TO_DEVICE);
+ if (n_pages != sgt->nents) {
+ rval = -ENOMEM;
+ sg_free_table(sgt);
+ goto out;
+ }
+
+ dma_sync_sg_for_device(&sys->dev, sgt->sgl, sgt->nents, DMA_TO_DEVICE);
+
+out:
+ kfree(pages);
+
+ return rval;
+}
+EXPORT_SYMBOL_GPL(ipu_buttress_map_fw_image);
+
+int ipu_buttress_unmap_fw_image(struct ipu_bus_device *sys,
+ struct sg_table *sgt)
+{
+ dma_unmap_sg(&sys->dev, sgt->sgl, sgt->nents, DMA_TO_DEVICE);
+ sg_free_table(sgt);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_buttress_unmap_fw_image);
+
+int ipu_buttress_authenticate(struct ipu_device *isp)
+{
+ struct ipu_psys_pdata *psys_pdata;
+ struct ipu_buttress *b = &isp->buttress;
+ u32 data, mask, done, fail;
+ int rval;
+
+ if (!isp->secure_mode) {
+ dev_dbg(&isp->pdev->dev,
+ "Non-secure mode -> skip authentication\n");
+ return 0;
+ }
+
+ psys_pdata = isp->psys->pdata;
+
+ mutex_lock(&b->auth_mutex);
+
+ if (ipu_buttress_auth_done(isp)) {
+ rval = 0;
+ goto iunit_power_off;
+ }
+
+ /*
+ * Write address of FIT table to FW_SOURCE register
+ * Let's use fw address. I.e. not using FIT table yet
+ */
+ data = lower_32_bits(isp->pkg_dir_dma_addr);
+ writel(data, isp->base + BUTTRESS_REG_FW_SOURCE_BASE_LO);
+
+ data = upper_32_bits(isp->pkg_dir_dma_addr);
+ writel(data, isp->base + BUTTRESS_REG_FW_SOURCE_BASE_HI);
+
+ /*
+ * Write boot_load into IU2CSEDATA0
+ * Write sizeof(boot_load) | 0x2 << CLIENT_ID to
+ * IU2CSEDB.IU2CSECMD and set IU2CSEDB.IU2CSEBUSY as
+ */
+ dev_info(&isp->pdev->dev, "Sending BOOT_LOAD to CSE\n");
+ rval = ipu_buttress_ipc_send(isp, IPU_BUTTRESS_IPC_CSE,
+ BUTTRESS_IU2CSEDATA0_IPC_BOOT_LOAD,
+ 1, 1,
+ BUTTRESS_CSE2IUDATA0_IPC_BOOT_LOAD_DONE);
+ if (rval) {
+ dev_err(&isp->pdev->dev, "CSE boot_load failed\n");
+ goto iunit_power_off;
+ }
+
+ mask = BUTTRESS_SECURITY_CTL_FW_SETUP_MASK;
+ done = BUTTRESS_SECURITY_CTL_FW_SETUP_DONE;
+ fail = BUTTRESS_SECURITY_CTL_AUTH_FAILED;
+ rval = readl_poll_timeout(isp->base + BUTTRESS_REG_SECURITY_CTL, data,
+ ((data & mask) == done ||
+ (data & mask) == fail), 500,
+ BUTTRESS_CSE_BOOTLOAD_TIMEOUT);
+ if (rval) {
+ dev_err(&isp->pdev->dev, "CSE boot_load timeout\n");
+ goto iunit_power_off;
+ }
+
+ data = readl(isp->base + BUTTRESS_REG_SECURITY_CTL) & mask;
+ if (data == fail) {
+ dev_err(&isp->pdev->dev, "CSE auth failed\n");
+ rval = -EINVAL;
+ goto iunit_power_off;
+ }
+
+ rval = readl_poll_timeout(psys_pdata->base + BOOTLOADER_STATUS_OFFSET,
+ data, data == BOOTLOADER_MAGIC_KEY, 500,
+ BUTTRESS_CSE_BOOTLOAD_TIMEOUT);
+ if (rval) {
+ dev_err(&isp->pdev->dev, "Expect magic number timeout 0x%x\n",
+ data);
+ goto iunit_power_off;
+ }
+
+ /*
+ * Write authenticate_run into IU2CSEDATA0
+ * Write sizeof(boot_load) | 0x2 << CLIENT_ID to
+ * IU2CSEDB.IU2CSECMD and set IU2CSEDB.IU2CSEBUSY as
+ */
+ dev_info(&isp->pdev->dev, "Sending AUTHENTICATE_RUN to CSE\n");
+ rval = ipu_buttress_ipc_send(isp, IPU_BUTTRESS_IPC_CSE,
+ BUTTRESS_IU2CSEDATA0_IPC_AUTH_RUN,
+ 1, 1,
+ BUTTRESS_CSE2IUDATA0_IPC_AUTH_RUN_DONE);
+ if (rval) {
+ dev_err(&isp->pdev->dev, "CSE authenticate_run failed\n");
+ goto iunit_power_off;
+ }
+
+ done = BUTTRESS_SECURITY_CTL_AUTH_DONE;
+ rval = readl_poll_timeout(isp->base + BUTTRESS_REG_SECURITY_CTL, data,
+ ((data & mask) == done ||
+ (data & mask) == fail), 500,
+ BUTTRESS_CSE_AUTHENTICATE_TIMEOUT);
+ if (rval) {
+ dev_err(&isp->pdev->dev, "CSE authenticate timeout\n");
+ goto iunit_power_off;
+ }
+
+ data = readl(isp->base + BUTTRESS_REG_SECURITY_CTL) & mask;
+ if (data == fail) {
+ dev_err(&isp->pdev->dev, "CSE boot_load failed\n");
+ rval = -EINVAL;
+ goto iunit_power_off;
+ }
+
+ dev_info(&isp->pdev->dev, "CSE authenticate_run done\n");
+
+iunit_power_off:
+ mutex_unlock(&b->auth_mutex);
+
+ return rval;
+}
+
+static int ipu_buttress_send_tsc_request(struct ipu_device *isp)
+{
+ u32 val, mask, shift, done;
+ int ret;
+
+ mask = BUTTRESS_PWR_STATE_HH_STATUS_MASK;
+ shift = BUTTRESS_PWR_STATE_HH_STATUS_SHIFT;
+
+ writel(BUTTRESS_FABRIC_CMD_START_TSC_SYNC,
+ isp->base + BUTTRESS_REG_FABRIC_CMD);
+
+ val = readl(isp->base + BUTTRESS_REG_PWR_STATE);
+ val = (val & mask) >> shift;
+ if (val == BUTTRESS_PWR_STATE_HH_STATE_ERR) {
+ dev_err(&isp->pdev->dev, "Start tsc sync failed\n");
+ return -EINVAL;
+ }
+
+ done = BUTTRESS_PWR_STATE_HH_STATE_DONE;
+ ret = readl_poll_timeout(isp->base + BUTTRESS_REG_PWR_STATE, val,
+ ((val & mask) >> shift == done), 500,
+ BUTTRESS_TSC_SYNC_TIMEOUT);
+ if (ret)
+ dev_err(&isp->pdev->dev, "Start tsc sync timeout\n");
+
+ return ret;
+}
+
+int ipu_buttress_start_tsc_sync(struct ipu_device *isp)
+{
+ unsigned int i;
+
+ for (i = 0; i < BUTTRESS_TSC_SYNC_RESET_TRIAL_MAX; i++) {
+ int ret;
+
+ ret = ipu_buttress_send_tsc_request(isp);
+ if (ret == -ETIMEDOUT) {
+ u32 val;
+ /* set tsw soft reset */
+ val = readl(isp->base + BUTTRESS_REG_TSW_CTL);
+ val = val | BUTTRESS_TSW_CTL_SOFT_RESET;
+ writel(val, isp->base + BUTTRESS_REG_TSW_CTL);
+ /* clear tsw soft reset */
+ val = val & (~BUTTRESS_TSW_CTL_SOFT_RESET);
+ writel(val, isp->base + BUTTRESS_REG_TSW_CTL);
+
+ continue;
+ }
+ return ret;
+ }
+
+ dev_err(&isp->pdev->dev, "TSC sync failed(timeout)\n");
+
+ return -ETIMEDOUT;
+}
+EXPORT_SYMBOL(ipu_buttress_start_tsc_sync);
+
+struct clk_ipu_sensor {
+ struct ipu_device *isp;
+ struct clk_hw hw;
+ unsigned int id;
+ unsigned long rate;
+};
+
+#define to_clk_ipu_sensor(_hw) container_of(_hw, struct clk_ipu_sensor, hw)
+
+int ipu_buttress_tsc_read(struct ipu_device *isp, u64 *val)
+{
+ u32 tsc_hi_1, tsc_hi_2, tsc_lo;
+ unsigned long flags;
+
+ local_irq_save(flags);
+ tsc_hi_1 = readl(isp->base + BUTTRESS_REG_TSC_HI);
+ tsc_lo = readl(isp->base + BUTTRESS_REG_TSC_LO);
+ tsc_hi_2 = readl(isp->base + BUTTRESS_REG_TSC_HI);
+ if (tsc_hi_1 == tsc_hi_2) {
+ *val = (u64)tsc_hi_1 << 32 | tsc_lo;
+ } else {
+ /* Check if TSC has rolled over */
+ if (tsc_lo & BIT(31))
+ *val = (u64)tsc_hi_1 << 32 | tsc_lo;
+ else
+ *val = (u64)tsc_hi_2 << 32 | tsc_lo;
+ }
+ local_irq_restore(flags);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_buttress_tsc_read);
+
+#ifdef CONFIG_DEBUG_FS
+
+static int ipu_buttress_reg_open(struct inode *inode, struct file *file)
+{
+ if (!inode->i_private)
+ return -EACCES;
+
+ file->private_data = inode->i_private;
+ return 0;
+}
+
+static ssize_t ipu_buttress_reg_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct debugfs_reg32 *reg = file->private_data;
+ u8 tmp[11];
+ u32 val = readl((void __iomem *)reg->offset);
+ int len = scnprintf(tmp, sizeof(tmp), "0x%08x", val);
+
+ return simple_read_from_buffer(buf, len, ppos, &tmp, len);
+}
+
+static ssize_t ipu_buttress_reg_write(struct file *file,
+ const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct debugfs_reg32 *reg = file->private_data;
+ u32 val;
+ int rval;
+
+ rval = kstrtou32_from_user(buf, count, 0, &val);
+ if (rval)
+ return rval;
+
+ writel(val, (void __iomem *)reg->offset);
+
+ return count;
+}
+
+static struct debugfs_reg32 buttress_regs[] = {
+ {"IU2CSEDB0", BUTTRESS_REG_IU2CSEDB0},
+ {"IU2CSEDATA0", BUTTRESS_REG_IU2CSEDATA0},
+ {"CSE2IUDB0", BUTTRESS_REG_CSE2IUDB0},
+ {"CSE2IUDATA0", BUTTRESS_REG_CSE2IUDATA0},
+ {"CSE2IUCSR", BUTTRESS_REG_CSE2IUCSR},
+ {"IU2CSECSR", BUTTRESS_REG_IU2CSECSR},
+};
+
+static const struct file_operations ipu_buttress_reg_fops = {
+ .owner = THIS_MODULE,
+ .open = ipu_buttress_reg_open,
+ .read = ipu_buttress_reg_read,
+ .write = ipu_buttress_reg_write,
+};
+
+static int ipu_buttress_start_tsc_sync_set(void *data, u64 val)
+{
+ struct ipu_device *isp = data;
+
+ return ipu_buttress_start_tsc_sync(isp);
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(ipu_buttress_start_tsc_sync_fops, NULL,
+ ipu_buttress_start_tsc_sync_set, "%llu\n");
+
+static int ipu_buttress_tsc_get(void *data, u64 *val)
+{
+ return ipu_buttress_tsc_read(data, val);
+}
+DEFINE_SIMPLE_ATTRIBUTE(ipu_buttress_tsc_fops, ipu_buttress_tsc_get,
+ NULL, "%llu\n");
+
+static int ipu_buttress_psys_force_freq_get(void *data, u64 *val)
+{
+ struct ipu_device *isp = data;
+
+ *val = isp->buttress.psys_force_ratio * BUTTRESS_PS_FREQ_STEP;
+
+ return 0;
+}
+
+static int ipu_buttress_psys_force_freq_set(void *data, u64 val)
+{
+ struct ipu_device *isp = data;
+
+ if (val && (val < BUTTRESS_MIN_FORCE_PS_FREQ ||
+ val > BUTTRESS_MAX_FORCE_PS_FREQ))
+ return -EINVAL;
+
+ do_div(val, BUTTRESS_PS_FREQ_STEP);
+ isp->buttress.psys_force_ratio = val;
+
+ if (isp->buttress.psys_force_ratio)
+ ipu_buttress_set_psys_ratio(isp,
+ isp->buttress.psys_force_ratio,
+ isp->buttress.psys_force_ratio);
+ else
+ ipu_buttress_set_psys_freq(isp, isp->buttress.psys_min_freq);
+
+ return 0;
+}
+
+static int ipu_buttress_isys_freq_get(void *data, u64 *val)
+{
+ struct ipu_device *isp = data;
+ u32 reg_val;
+ int rval;
+
+ rval = pm_runtime_get_sync(&isp->isys->dev);
+ if (rval < 0) {
+ pm_runtime_put(&isp->isys->dev);
+ dev_err(&isp->pdev->dev, "Runtime PM failed (%d)\n", rval);
+ return rval;
+ }
+
+ reg_val = readl(isp->base + BUTTRESS_REG_IS_FREQ_CTL);
+
+ pm_runtime_put(&isp->isys->dev);
+
+ *val = IPU_IS_FREQ_RATIO_BASE *
+ (reg_val & IPU_BUTTRESS_IS_FREQ_CTL_DIVISOR_MASK);
+
+ return 0;
+}
+
+static int ipu_buttress_isys_freq_set(void *data, u64 val)
+{
+ struct ipu_device *isp = data;
+ int rval;
+
+ if (val < BUTTRESS_MIN_FORCE_IS_FREQ ||
+ val > BUTTRESS_MAX_FORCE_IS_FREQ)
+ return -EINVAL;
+
+ rval = pm_runtime_get_sync(&isp->isys->dev);
+ if (rval < 0) {
+ pm_runtime_put(&isp->isys->dev);
+ dev_err(&isp->pdev->dev, "Runtime PM failed (%d)\n", rval);
+ return rval;
+ }
+
+ do_div(val, BUTTRESS_IS_FREQ_STEP);
+ if (val)
+ ipu_buttress_set_isys_ratio(isp, val);
+
+ pm_runtime_put(&isp->isys->dev);
+
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(ipu_buttress_psys_force_freq_fops,
+ ipu_buttress_psys_force_freq_get,
+ ipu_buttress_psys_force_freq_set, "%llu\n");
+
+DEFINE_SIMPLE_ATTRIBUTE(ipu_buttress_psys_freq_fops,
+ ipu_buttress_psys_freq_get, NULL, "%llu\n");
+
+DEFINE_SIMPLE_ATTRIBUTE(ipu_buttress_isys_freq_fops,
+ ipu_buttress_isys_freq_get,
+ ipu_buttress_isys_freq_set, "%llu\n");
+
+int ipu_buttress_debugfs_init(struct ipu_device *isp)
+{
+ struct debugfs_reg32 *reg =
+ devm_kcalloc(&isp->pdev->dev, ARRAY_SIZE(buttress_regs),
+ sizeof(*reg), GFP_KERNEL);
+ struct dentry *dir, *file;
+ int i;
+
+ if (!reg)
+ return -ENOMEM;
+
+ dir = debugfs_create_dir("buttress", isp->ipu_dir);
+ if (!dir)
+ return -ENOMEM;
+
+ for (i = 0; i < ARRAY_SIZE(buttress_regs); i++, reg++) {
+ reg->offset = (unsigned long)isp->base +
+ buttress_regs[i].offset;
+ reg->name = buttress_regs[i].name;
+ file = debugfs_create_file(reg->name, 0700,
+ dir, reg, &ipu_buttress_reg_fops);
+ if (!file)
+ goto err;
+ }
+
+ file = debugfs_create_file("start_tsc_sync", 0200, dir, isp,
+ &ipu_buttress_start_tsc_sync_fops);
+ if (!file)
+ goto err;
+ file = debugfs_create_file("tsc", 0400, dir, isp,
+ &ipu_buttress_tsc_fops);
+ if (!file)
+ goto err;
+ file = debugfs_create_file("psys_force_freq", 0700, dir, isp,
+ &ipu_buttress_psys_force_freq_fops);
+ if (!file)
+ goto err;
+
+ file = debugfs_create_file("psys_freq", 0400, dir, isp,
+ &ipu_buttress_psys_freq_fops);
+ if (!file)
+ goto err;
+
+ file = debugfs_create_file("isys_freq", 0700, dir, isp,
+ &ipu_buttress_isys_freq_fops);
+ if (!file)
+ goto err;
+
+ return 0;
+err:
+ debugfs_remove_recursive(dir);
+ return -ENOMEM;
+}
+
+#endif /* CONFIG_DEBUG_FS */
+
+u64 ipu_buttress_tsc_ticks_to_ns(u64 ticks)
+{
+ u64 ns = ticks * 10000;
+ /*
+ * TSC clock frequency is 19.2MHz,
+ * converting TSC tick count to ns is calculated by:
+ * ns = ticks * 1000 000 000 / 19.2Mhz
+ * = ticks * 1000 000 000 / 19200000Hz
+ * = ticks * 10000 / 192 ns
+ */
+ do_div(ns, 192);
+
+ return ns;
+}
+EXPORT_SYMBOL_GPL(ipu_buttress_tsc_ticks_to_ns);
+
+static ssize_t psys_fused_min_freq_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct ipu_device *isp = pci_get_drvdata(to_pci_dev(dev));
+
+ return snprintf(buf, PAGE_SIZE, "%u\n",
+ isp->buttress.psys_fused_freqs.min_freq);
+}
+
+static DEVICE_ATTR_RO(psys_fused_min_freq);
+
+static ssize_t psys_fused_max_freq_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct ipu_device *isp = pci_get_drvdata(to_pci_dev(dev));
+
+ return snprintf(buf, PAGE_SIZE, "%u\n",
+ isp->buttress.psys_fused_freqs.max_freq);
+}
+
+static DEVICE_ATTR_RO(psys_fused_max_freq);
+
+static ssize_t psys_fused_efficient_freq_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct ipu_device *isp = pci_get_drvdata(to_pci_dev(dev));
+
+ return snprintf(buf, PAGE_SIZE, "%u\n",
+ isp->buttress.psys_fused_freqs.efficient_freq);
+}
+
+static DEVICE_ATTR_RO(psys_fused_efficient_freq);
+
+int ipu_buttress_restore(struct ipu_device *isp)
+{
+ struct ipu_buttress *b = &isp->buttress;
+
+ writel(BUTTRESS_IRQS, isp->base + BUTTRESS_REG_ISR_CLEAR);
+ writel(BUTTRESS_IRQS, isp->base + BUTTRESS_REG_ISR_ENABLE);
+ writel(b->wdt_cached_value, isp->base + BUTTRESS_REG_WDT);
+
+ return 0;
+}
+
+int ipu_buttress_init(struct ipu_device *isp)
+{
+ struct ipu_buttress *b = &isp->buttress;
+ int rval, ipc_reset_retry = BUTTRESS_CSE_IPC_RESET_RETRY;
+
+ mutex_init(&b->power_mutex);
+ mutex_init(&b->auth_mutex);
+ mutex_init(&b->cons_mutex);
+ mutex_init(&b->ipc_mutex);
+ init_completion(&b->ish.send_complete);
+ init_completion(&b->cse.send_complete);
+ init_completion(&b->ish.recv_complete);
+ init_completion(&b->cse.recv_complete);
+
+ b->cse.nack = BUTTRESS_CSE2IUDATA0_IPC_NACK;
+ b->cse.nack_mask = BUTTRESS_CSE2IUDATA0_IPC_NACK_MASK;
+ b->cse.csr_in = BUTTRESS_REG_CSE2IUCSR;
+ b->cse.csr_out = BUTTRESS_REG_IU2CSECSR;
+ b->cse.db0_in = BUTTRESS_REG_CSE2IUDB0;
+ b->cse.db0_out = BUTTRESS_REG_IU2CSEDB0;
+ b->cse.data0_in = BUTTRESS_REG_CSE2IUDATA0;
+ b->cse.data0_out = BUTTRESS_REG_IU2CSEDATA0;
+
+ /* no ISH on IPU6 */
+ memset(&b->ish, 0, sizeof(b->ish));
+ INIT_LIST_HEAD(&b->constraints);
+
+ ipu_buttress_set_secure_mode(isp);
+ isp->secure_mode = ipu_buttress_get_secure_mode(isp);
+ if (isp->secure_mode != secure_mode_enable)
+ dev_warn(&isp->pdev->dev, "Unable to set secure mode\n");
+
+ dev_info(&isp->pdev->dev, "IPU in %s mode\n",
+ isp->secure_mode ? "secure" : "non-secure");
+
+ b->wdt_cached_value = readl(isp->base + BUTTRESS_REG_WDT);
+ writel(BUTTRESS_IRQS, isp->base + BUTTRESS_REG_ISR_CLEAR);
+ writel(BUTTRESS_IRQS, isp->base + BUTTRESS_REG_ISR_ENABLE);
+
+ rval = device_create_file(&isp->pdev->dev,
+ &dev_attr_psys_fused_min_freq);
+ if (rval) {
+ dev_err(&isp->pdev->dev, "Create min freq file failed\n");
+ goto err_mutex_destroy;
+ }
+
+ rval = device_create_file(&isp->pdev->dev,
+ &dev_attr_psys_fused_max_freq);
+ if (rval) {
+ dev_err(&isp->pdev->dev, "Create max freq file failed\n");
+ goto err_remove_min_freq_file;
+ }
+
+ rval = device_create_file(&isp->pdev->dev,
+ &dev_attr_psys_fused_efficient_freq);
+ if (rval) {
+ dev_err(&isp->pdev->dev, "Create efficient freq file failed\n");
+ goto err_remove_max_freq_file;
+ }
+
+ /*
+ * We want to retry couple of time in case CSE initialization
+ * is delayed for reason or another.
+ */
+ do {
+ rval = ipu_buttress_ipc_reset(isp, &b->cse);
+ if (rval) {
+ dev_warn(&isp->pdev->dev,
+ "IPC reset protocol failed, retrying\n");
+ } else {
+ dev_info(&isp->pdev->dev, "IPC reset done\n");
+ return 0;
+ }
+ } while (ipc_reset_retry--);
+
+ dev_err(&isp->pdev->dev, "IPC reset protocol failed\n");
+
+err_remove_max_freq_file:
+ device_remove_file(&isp->pdev->dev, &dev_attr_psys_fused_max_freq);
+err_remove_min_freq_file:
+ device_remove_file(&isp->pdev->dev, &dev_attr_psys_fused_min_freq);
+err_mutex_destroy:
+ mutex_destroy(&b->power_mutex);
+ mutex_destroy(&b->auth_mutex);
+ mutex_destroy(&b->cons_mutex);
+ mutex_destroy(&b->ipc_mutex);
+
+ return rval;
+}
+
+void ipu_buttress_exit(struct ipu_device *isp)
+{
+ struct ipu_buttress *b = &isp->buttress;
+
+ writel(0, isp->base + BUTTRESS_REG_ISR_ENABLE);
+
+ device_remove_file(&isp->pdev->dev,
+ &dev_attr_psys_fused_efficient_freq);
+ device_remove_file(&isp->pdev->dev, &dev_attr_psys_fused_max_freq);
+ device_remove_file(&isp->pdev->dev, &dev_attr_psys_fused_min_freq);
+
+ mutex_destroy(&b->power_mutex);
+ mutex_destroy(&b->auth_mutex);
+ mutex_destroy(&b->cons_mutex);
+ mutex_destroy(&b->ipc_mutex);
+}
diff --git a/drivers/media/pci/intel/ipu-buttress.h b/drivers/media/pci/intel/ipu-buttress.h
new file mode 100644
index 0000000000000..b57f4aaffa571
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-buttress.h
@@ -0,0 +1,128 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2013 - 2020 Intel Corporation */
+
+#ifndef IPU_BUTTRESS_H
+#define IPU_BUTTRESS_H
+
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include "ipu.h"
+
+#define IPU_BUTTRESS_NUM_OF_SENS_CKS 3
+#define IPU_BUTTRESS_NUM_OF_PLL_CKS 3
+#define IPU_BUTTRESS_TSC_CLK 19200000
+
+#define BUTTRESS_POWER_TIMEOUT 200000
+
+#define BUTTRESS_PS_FREQ_STEP 25U
+#define BUTTRESS_MIN_FORCE_PS_FREQ (BUTTRESS_PS_FREQ_STEP * 8)
+#define BUTTRESS_MAX_FORCE_PS_FREQ (BUTTRESS_PS_FREQ_STEP * 32)
+
+#define BUTTRESS_IS_FREQ_STEP 25U
+#define BUTTRESS_MIN_FORCE_IS_FREQ (BUTTRESS_IS_FREQ_STEP * 8)
+#define BUTTRESS_MAX_FORCE_IS_FREQ (BUTTRESS_IS_FREQ_STEP * 16)
+
+struct ipu_buttress_ctrl {
+ u32 freq_ctl, pwr_sts_shift, pwr_sts_mask, pwr_sts_on, pwr_sts_off;
+ union {
+ unsigned int divisor;
+ unsigned int ratio;
+ };
+ union {
+ unsigned int divisor_shift;
+ unsigned int ratio_shift;
+ };
+ unsigned int qos_floor;
+ bool started;
+};
+
+struct ipu_buttress_fused_freqs {
+ unsigned int min_freq;
+ unsigned int max_freq;
+ unsigned int efficient_freq;
+};
+
+struct ipu_buttress_ipc {
+ struct completion send_complete;
+ struct completion recv_complete;
+ u32 nack;
+ u32 nack_mask;
+ u32 recv_data;
+ u32 csr_out;
+ u32 csr_in;
+ u32 db0_in;
+ u32 db0_out;
+ u32 data0_out;
+ u32 data0_in;
+};
+
+struct ipu_buttress {
+ struct mutex power_mutex, auth_mutex, cons_mutex, ipc_mutex;
+ struct ipu_buttress_ipc cse;
+ struct ipu_buttress_ipc ish;
+ struct list_head constraints;
+ struct ipu_buttress_fused_freqs psys_fused_freqs;
+ unsigned int psys_min_freq;
+ u32 wdt_cached_value;
+ u8 psys_force_ratio;
+ bool force_suspend;
+};
+
+struct ipu_buttress_sensor_clk_freq {
+ unsigned int rate;
+ unsigned int val;
+};
+
+struct firmware;
+
+enum ipu_buttress_ipc_domain {
+ IPU_BUTTRESS_IPC_CSE,
+ IPU_BUTTRESS_IPC_ISH,
+};
+
+struct ipu_buttress_constraint {
+ struct list_head list;
+ unsigned int min_freq;
+};
+
+struct ipu_ipc_buttress_bulk_msg {
+ u32 cmd;
+ u32 expected_resp;
+ bool require_resp;
+ u8 cmd_size;
+};
+
+int ipu_buttress_ipc_reset(struct ipu_device *isp,
+ struct ipu_buttress_ipc *ipc);
+int ipu_buttress_map_fw_image(struct ipu_bus_device *sys,
+ const struct firmware *fw, struct sg_table *sgt);
+int ipu_buttress_unmap_fw_image(struct ipu_bus_device *sys,
+ struct sg_table *sgt);
+int ipu_buttress_power(struct device *dev,
+ struct ipu_buttress_ctrl *ctrl, bool on);
+void
+ipu_buttress_add_psys_constraint(struct ipu_device *isp,
+ struct ipu_buttress_constraint *constraint);
+void
+ipu_buttress_remove_psys_constraint(struct ipu_device *isp,
+ struct ipu_buttress_constraint *constraint);
+void ipu_buttress_set_secure_mode(struct ipu_device *isp);
+bool ipu_buttress_get_secure_mode(struct ipu_device *isp);
+int ipu_buttress_authenticate(struct ipu_device *isp);
+int ipu_buttress_reset_authentication(struct ipu_device *isp);
+bool ipu_buttress_auth_done(struct ipu_device *isp);
+int ipu_buttress_start_tsc_sync(struct ipu_device *isp);
+int ipu_buttress_tsc_read(struct ipu_device *isp, u64 *val);
+u64 ipu_buttress_tsc_ticks_to_ns(u64 ticks);
+
+irqreturn_t ipu_buttress_isr(int irq, void *isp_ptr);
+irqreturn_t ipu_buttress_isr_threaded(int irq, void *isp_ptr);
+int ipu_buttress_debugfs_init(struct ipu_device *isp);
+int ipu_buttress_init(struct ipu_device *isp);
+void ipu_buttress_exit(struct ipu_device *isp);
+void ipu_buttress_csi_port_config(struct ipu_device *isp,
+ u32 legacy, u32 combo);
+int ipu_buttress_restore(struct ipu_device *isp);
+
+int ipu_buttress_psys_freq_get(void *data, u64 *val);
+#endif /* IPU_BUTTRESS_H */
diff --git a/drivers/media/pci/intel/ipu-cpd.c b/drivers/media/pci/intel/ipu-cpd.c
new file mode 100644
index 0000000000000..3833f3f0bd8df
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-cpd.c
@@ -0,0 +1,465 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2015 - 2020 Intel Corporation
+
+#include <linux/dma-mapping.h>
+#include <linux/module.h>
+
+#include "ipu.h"
+#include "ipu-cpd.h"
+
+/* 15 entries + header*/
+#define MAX_PKG_DIR_ENT_CNT 16
+/* 2 qword per entry/header */
+#define PKG_DIR_ENT_LEN 2
+/* PKG_DIR size in bytes */
+#define PKG_DIR_SIZE ((MAX_PKG_DIR_ENT_CNT) * \
+ (PKG_DIR_ENT_LEN) * sizeof(u64))
+#define PKG_DIR_ID_SHIFT 48
+#define PKG_DIR_ID_MASK 0x7f
+#define PKG_DIR_VERSION_SHIFT 32
+#define PKG_DIR_SIZE_MASK 0xfffff
+/* _IUPKDR_ */
+#define PKG_DIR_HDR_MARK 0x5f4955504b44525f
+
+/* $CPD */
+#define CPD_HDR_MARK 0x44504324
+
+/* Maximum size is 2K DWORDs */
+#define MAX_MANIFEST_SIZE (2 * 1024 * sizeof(u32))
+
+/* Maximum size is 64k */
+#define MAX_METADATA_SIZE (64 * 1024)
+
+#define MAX_COMPONENT_ID 127
+#define MAX_COMPONENT_VERSION 0xffff
+
+#define CPD_MANIFEST_IDX 0
+#define CPD_METADATA_IDX 1
+#define CPD_MODULEDATA_IDX 2
+
+static inline struct ipu_cpd_ent *ipu_cpd_get_entries(const void *cpd)
+{
+ const struct ipu_cpd_hdr *cpd_hdr = cpd;
+
+ return (struct ipu_cpd_ent *)((u8 *)cpd + cpd_hdr->hdr_len);
+}
+
+#define ipu_cpd_get_entry(cpd, idx) (&ipu_cpd_get_entries(cpd)[idx])
+#define ipu_cpd_get_manifest(cpd) ipu_cpd_get_entry(cpd, CPD_MANIFEST_IDX)
+#define ipu_cpd_get_metadata(cpd) ipu_cpd_get_entry(cpd, CPD_METADATA_IDX)
+#define ipu_cpd_get_moduledata(cpd) ipu_cpd_get_entry(cpd, CPD_MODULEDATA_IDX)
+
+static const struct ipu_cpd_metadata_cmpnt *
+ipu_cpd_metadata_get_cmpnt(struct ipu_device *isp,
+ const void *metadata,
+ unsigned int metadata_size,
+ u8 idx)
+{
+ const struct ipu_cpd_metadata_extn *extn;
+ const struct ipu_cpd_metadata_cmpnt *cmpnts;
+ int cmpnt_count;
+
+ extn = metadata;
+ cmpnts = metadata + sizeof(*extn);
+ cmpnt_count = (metadata_size - sizeof(*extn)) / sizeof(*cmpnts);
+
+ if (idx > MAX_COMPONENT_ID || idx >= cmpnt_count) {
+ dev_err(&isp->pdev->dev, "Component index out of range (%d)\n",
+ idx);
+ return ERR_PTR(-EINVAL);
+ }
+
+ return &cmpnts[idx];
+}
+
+static u32 ipu_cpd_metadata_cmpnt_version(struct ipu_device *isp,
+ const void *metadata,
+ unsigned int metadata_size, u8 idx)
+{
+ const struct ipu_cpd_metadata_cmpnt *cmpnt =
+ ipu_cpd_metadata_get_cmpnt(isp, metadata,
+ metadata_size, idx);
+
+ if (IS_ERR(cmpnt))
+ return PTR_ERR(cmpnt);
+
+ return cmpnt->ver;
+}
+
+static int ipu_cpd_metadata_get_cmpnt_id(struct ipu_device *isp,
+ const void *metadata,
+ unsigned int metadata_size, u8 idx)
+{
+ const struct ipu_cpd_metadata_cmpnt *cmpnt =
+ ipu_cpd_metadata_get_cmpnt(isp, metadata,
+ metadata_size, idx);
+
+ if (IS_ERR(cmpnt))
+ return PTR_ERR(cmpnt);
+
+ return cmpnt->id;
+}
+
+static const struct ipu6_cpd_metadata_cmpnt *
+ipu6_cpd_metadata_get_cmpnt(struct ipu_device *isp,
+ const void *metadata,
+ unsigned int metadata_size,
+ u8 idx)
+{
+ const struct ipu_cpd_metadata_extn *extn = metadata;
+ const struct ipu6_cpd_metadata_cmpnt *cmpnts = metadata + sizeof(*extn);
+ int cmpnt_count;
+
+ cmpnt_count = (metadata_size - sizeof(*extn)) / sizeof(*cmpnts);
+ if (idx > MAX_COMPONENT_ID || idx >= cmpnt_count) {
+ dev_err(&isp->pdev->dev, "Component index out of range (%d)\n",
+ idx);
+ return ERR_PTR(-EINVAL);
+ }
+
+ return &cmpnts[idx];
+}
+
+static u32 ipu6_cpd_metadata_cmpnt_version(struct ipu_device *isp,
+ const void *metadata,
+ unsigned int metadata_size, u8 idx)
+{
+ const struct ipu6_cpd_metadata_cmpnt *cmpnt =
+ ipu6_cpd_metadata_get_cmpnt(isp, metadata,
+ metadata_size, idx);
+
+ if (IS_ERR(cmpnt))
+ return PTR_ERR(cmpnt);
+
+ return cmpnt->ver;
+}
+
+static int ipu6_cpd_metadata_get_cmpnt_id(struct ipu_device *isp,
+ const void *metadata,
+ unsigned int metadata_size, u8 idx)
+{
+ const struct ipu6_cpd_metadata_cmpnt *cmpnt =
+ ipu6_cpd_metadata_get_cmpnt(isp, metadata,
+ metadata_size, idx);
+
+ if (IS_ERR(cmpnt))
+ return PTR_ERR(cmpnt);
+
+ return cmpnt->id;
+}
+
+static int ipu_cpd_parse_module_data(struct ipu_device *isp,
+ const void *module_data,
+ unsigned int module_data_size,
+ dma_addr_t dma_addr_module_data,
+ u64 *pkg_dir,
+ const void *metadata,
+ unsigned int metadata_size)
+{
+ const struct ipu_cpd_module_data_hdr *module_data_hdr;
+ const struct ipu_cpd_hdr *dir_hdr;
+ const struct ipu_cpd_ent *dir_ent;
+ int i;
+ u8 len;
+
+ if (!module_data)
+ return -EINVAL;
+
+ module_data_hdr = module_data;
+ dir_hdr = module_data + module_data_hdr->hdr_len;
+ len = dir_hdr->hdr_len;
+ dir_ent = (struct ipu_cpd_ent *)(((u8 *)dir_hdr) + len);
+
+ pkg_dir[0] = PKG_DIR_HDR_MARK;
+ /* pkg_dir entry count = component count + pkg_dir header */
+ pkg_dir[1] = dir_hdr->ent_cnt + 1;
+
+ for (i = 0; i < dir_hdr->ent_cnt; i++, dir_ent++) {
+ u64 *p = &pkg_dir[PKG_DIR_ENT_LEN + i * PKG_DIR_ENT_LEN];
+ int ver, id;
+
+ *p++ = dma_addr_module_data + dir_ent->offset;
+
+ if (ipu_ver == IPU_VER_6 || ipu_ver == IPU_VER_6EP)
+ id = ipu6_cpd_metadata_get_cmpnt_id(isp, metadata,
+ metadata_size, i);
+ else
+ id = ipu_cpd_metadata_get_cmpnt_id(isp, metadata,
+ metadata_size, i);
+
+ if (id < 0 || id > MAX_COMPONENT_ID) {
+ dev_err(&isp->pdev->dev,
+ "Failed to parse component id\n");
+ return -EINVAL;
+ }
+
+ if (ipu_ver == IPU_VER_6 || ipu_ver == IPU_VER_6EP)
+ ver = ipu6_cpd_metadata_cmpnt_version(isp, metadata,
+ metadata_size, i);
+ else
+ ver = ipu_cpd_metadata_cmpnt_version(isp, metadata,
+ metadata_size, i);
+
+ if (ver < 0 || ver > MAX_COMPONENT_VERSION) {
+ dev_err(&isp->pdev->dev,
+ "Failed to parse component version\n");
+ return -EINVAL;
+ }
+
+ /*
+ * PKG_DIR Entry (type == id)
+ * 63:56 55 54:48 47:32 31:24 23:0
+ * Rsvd Rsvd Type Version Rsvd Size
+ */
+ *p = dir_ent->len | (u64)id << PKG_DIR_ID_SHIFT |
+ (u64)ver << PKG_DIR_VERSION_SHIFT;
+ }
+
+ return 0;
+}
+
+void *ipu_cpd_create_pkg_dir(struct ipu_bus_device *adev,
+ const void *src,
+ dma_addr_t dma_addr_src,
+ dma_addr_t *dma_addr, unsigned int *pkg_dir_size)
+{
+ struct ipu_device *isp = adev->isp;
+ const struct ipu_cpd_ent *ent, *man_ent, *met_ent;
+ u64 *pkg_dir;
+ unsigned int man_sz, met_sz;
+ void *pkg_dir_pos;
+ int ret;
+
+ man_ent = ipu_cpd_get_manifest(src);
+ man_sz = man_ent->len;
+
+ met_ent = ipu_cpd_get_metadata(src);
+ met_sz = met_ent->len;
+
+ *pkg_dir_size = PKG_DIR_SIZE + man_sz + met_sz;
+ pkg_dir = dma_alloc_attrs(&adev->dev, *pkg_dir_size, dma_addr,
+ GFP_KERNEL,
+ 0);
+ if (!pkg_dir)
+ return pkg_dir;
+
+ /*
+ * pkg_dir entry/header:
+ * qword | 63:56 | 55 | 54:48 | 47:32 | 31:24 | 23:0
+ * N Address/Offset/"_IUPKDR_"
+ * N + 1 | rsvd | rsvd | type | ver | rsvd | size
+ *
+ * We can ignore other fields that size in N + 1 qword as they
+ * are 0 anyway. Just setting size for now.
+ */
+
+ ent = ipu_cpd_get_moduledata(src);
+
+ ret = ipu_cpd_parse_module_data(isp, src + ent->offset,
+ ent->len,
+ dma_addr_src + ent->offset,
+ pkg_dir,
+ src + met_ent->offset, met_ent->len);
+ if (ret) {
+ dev_err(&isp->pdev->dev,
+ "Unable to parse module data section!\n");
+ dma_free_attrs(&isp->psys->dev, *pkg_dir_size, pkg_dir,
+ *dma_addr,
+ 0);
+ return NULL;
+ }
+
+ /* Copy manifest after pkg_dir */
+ pkg_dir_pos = pkg_dir + PKG_DIR_ENT_LEN * MAX_PKG_DIR_ENT_CNT;
+ memcpy(pkg_dir_pos, src + man_ent->offset, man_sz);
+
+ /* Copy metadata after manifest */
+ pkg_dir_pos += man_sz;
+ memcpy(pkg_dir_pos, src + met_ent->offset, met_sz);
+
+ dma_sync_single_range_for_device(&adev->dev, *dma_addr,
+ 0, *pkg_dir_size, DMA_TO_DEVICE);
+
+ return pkg_dir;
+}
+EXPORT_SYMBOL_GPL(ipu_cpd_create_pkg_dir);
+
+void ipu_cpd_free_pkg_dir(struct ipu_bus_device *adev,
+ u64 *pkg_dir,
+ dma_addr_t dma_addr, unsigned int pkg_dir_size)
+{
+ dma_free_attrs(&adev->dev, pkg_dir_size, pkg_dir, dma_addr, 0);
+}
+EXPORT_SYMBOL_GPL(ipu_cpd_free_pkg_dir);
+
+static int ipu_cpd_validate_cpd(struct ipu_device *isp,
+ const void *cpd,
+ unsigned long cpd_size, unsigned long data_size)
+{
+ const struct ipu_cpd_hdr *cpd_hdr = cpd;
+ struct ipu_cpd_ent *ent;
+ unsigned int i;
+ u8 len;
+
+ len = cpd_hdr->hdr_len;
+
+ /* Ensure cpd hdr is within moduledata */
+ if (cpd_size < len) {
+ dev_err(&isp->pdev->dev, "Invalid CPD moduledata size\n");
+ return -EINVAL;
+ }
+
+ /* Sanity check for CPD header */
+ if ((cpd_size - len) / sizeof(*ent) < cpd_hdr->ent_cnt) {
+ dev_err(&isp->pdev->dev, "Invalid CPD header\n");
+ return -EINVAL;
+ }
+
+ /* Ensure that all entries are within moduledata */
+ ent = (struct ipu_cpd_ent *)(((u8 *)cpd_hdr) + len);
+ for (i = 0; i < cpd_hdr->ent_cnt; i++, ent++) {
+ if (data_size < ent->offset ||
+ data_size - ent->offset < ent->len) {
+ dev_err(&isp->pdev->dev, "Invalid CPD entry (%d)\n", i);
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static int ipu_cpd_validate_moduledata(struct ipu_device *isp,
+ const void *moduledata,
+ u32 moduledata_size)
+{
+ const struct ipu_cpd_module_data_hdr *mod_hdr = moduledata;
+ int rval;
+
+ /* Ensure moduledata hdr is within moduledata */
+ if (moduledata_size < sizeof(*mod_hdr) ||
+ moduledata_size < mod_hdr->hdr_len) {
+ dev_err(&isp->pdev->dev, "Invalid moduledata size\n");
+ return -EINVAL;
+ }
+
+ dev_info(&isp->pdev->dev, "FW version: %x\n", mod_hdr->fw_pkg_date);
+ rval = ipu_cpd_validate_cpd(isp, moduledata +
+ mod_hdr->hdr_len,
+ moduledata_size -
+ mod_hdr->hdr_len, moduledata_size);
+ if (rval) {
+ dev_err(&isp->pdev->dev, "Invalid CPD in moduledata\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int ipu_cpd_validate_metadata(struct ipu_device *isp,
+ const void *metadata, u32 meta_size)
+{
+ const struct ipu_cpd_metadata_extn *extn = metadata;
+ unsigned int size;
+
+ /* Sanity check for metadata size */
+ if (meta_size < sizeof(*extn) || meta_size > MAX_METADATA_SIZE) {
+ dev_err(&isp->pdev->dev, "%s: Invalid metadata\n", __func__);
+ return -EINVAL;
+ }
+
+ /* Validate extension and image types */
+ if (extn->extn_type != IPU_CPD_METADATA_EXTN_TYPE_IUNIT ||
+ extn->img_type != IPU_CPD_METADATA_IMAGE_TYPE_MAIN_FIRMWARE) {
+ dev_err(&isp->pdev->dev,
+ "Invalid metadata descriptor img_type (%d)\n",
+ extn->img_type);
+ return -EINVAL;
+ }
+
+ /* Validate metadata size multiple of metadata components */
+ if (ipu_ver == IPU_VER_6 || ipu_ver == IPU_VER_6EP)
+ size = sizeof(struct ipu6_cpd_metadata_cmpnt);
+ else
+ size = sizeof(struct ipu_cpd_metadata_cmpnt);
+
+ if ((meta_size - sizeof(*extn)) % size) {
+ dev_err(&isp->pdev->dev, "%s: Invalid metadata size\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int ipu_cpd_validate_cpd_file(struct ipu_device *isp,
+ const void *cpd_file, unsigned long cpd_file_size)
+{
+ const struct ipu_cpd_hdr *hdr = cpd_file;
+ struct ipu_cpd_ent *ent;
+ int rval;
+
+ rval = ipu_cpd_validate_cpd(isp, cpd_file,
+ cpd_file_size, cpd_file_size);
+ if (rval) {
+ dev_err(&isp->pdev->dev, "Invalid CPD in file\n");
+ return -EINVAL;
+ }
+
+ /* Check for CPD file marker */
+ if (hdr->hdr_mark != CPD_HDR_MARK) {
+ dev_err(&isp->pdev->dev, "Invalid CPD header\n");
+ return -EINVAL;
+ }
+
+ /* Sanity check for manifest size */
+ ent = ipu_cpd_get_manifest(cpd_file);
+ if (ent->len > MAX_MANIFEST_SIZE) {
+ dev_err(&isp->pdev->dev, "Invalid manifest size\n");
+ return -EINVAL;
+ }
+
+ /* Validate metadata */
+ ent = ipu_cpd_get_metadata(cpd_file);
+ rval = ipu_cpd_validate_metadata(isp, cpd_file + ent->offset, ent->len);
+ if (rval) {
+ dev_err(&isp->pdev->dev, "Invalid metadata\n");
+ return rval;
+ }
+
+ /* Validate moduledata */
+ ent = ipu_cpd_get_moduledata(cpd_file);
+ rval = ipu_cpd_validate_moduledata(isp, cpd_file + ent->offset,
+ ent->len);
+ if (rval) {
+ dev_err(&isp->pdev->dev, "Invalid moduledata\n");
+ return rval;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_cpd_validate_cpd_file);
+
+unsigned int ipu_cpd_pkg_dir_get_address(const u64 *pkg_dir, int pkg_dir_idx)
+{
+ return pkg_dir[++pkg_dir_idx * PKG_DIR_ENT_LEN];
+}
+EXPORT_SYMBOL_GPL(ipu_cpd_pkg_dir_get_address);
+
+unsigned int ipu_cpd_pkg_dir_get_num_entries(const u64 *pkg_dir)
+{
+ return pkg_dir[1];
+}
+EXPORT_SYMBOL_GPL(ipu_cpd_pkg_dir_get_num_entries);
+
+unsigned int ipu_cpd_pkg_dir_get_size(const u64 *pkg_dir, int pkg_dir_idx)
+{
+ return pkg_dir[++pkg_dir_idx * PKG_DIR_ENT_LEN + 1] & PKG_DIR_SIZE_MASK;
+}
+EXPORT_SYMBOL_GPL(ipu_cpd_pkg_dir_get_size);
+
+unsigned int ipu_cpd_pkg_dir_get_type(const u64 *pkg_dir, int pkg_dir_idx)
+{
+ return pkg_dir[++pkg_dir_idx * PKG_DIR_ENT_LEN + 1] >>
+ PKG_DIR_ID_SHIFT & PKG_DIR_ID_MASK;
+}
+EXPORT_SYMBOL_GPL(ipu_cpd_pkg_dir_get_type);
diff --git a/drivers/media/pci/intel/ipu-cpd.h b/drivers/media/pci/intel/ipu-cpd.h
new file mode 100644
index 0000000000000..6e8fd5a9e51f7
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-cpd.h
@@ -0,0 +1,110 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2015 - 2020 Intel Corporation */
+
+#ifndef IPU_CPD_H
+#define IPU_CPD_H
+
+#define IPU_CPD_SIZE_OF_FW_ARCH_VERSION 7
+#define IPU_CPD_SIZE_OF_SYSTEM_VERSION 11
+#define IPU_CPD_SIZE_OF_COMPONENT_NAME 12
+
+#define IPU_CPD_METADATA_EXTN_TYPE_IUNIT 0x10
+
+#define IPU_CPD_METADATA_IMAGE_TYPE_RESERVED 0
+#define IPU_CPD_METADATA_IMAGE_TYPE_BOOTLOADER 1
+#define IPU_CPD_METADATA_IMAGE_TYPE_MAIN_FIRMWARE 2
+
+#define IPU_CPD_PKG_DIR_PSYS_SERVER_IDX 0
+#define IPU_CPD_PKG_DIR_ISYS_SERVER_IDX 1
+
+#define IPU_CPD_PKG_DIR_CLIENT_PG_TYPE 3
+
+#define IPU6_CPD_METADATA_HASH_KEY_SIZE 48
+#define IPU_CPD_METADATA_HASH_KEY_SIZE 32
+
+struct __packed ipu_cpd_module_data_hdr {
+ u32 hdr_len;
+ u32 endian;
+ u32 fw_pkg_date;
+ u32 hive_sdk_date;
+ u32 compiler_date;
+ u32 target_platform_type;
+ u8 sys_ver[IPU_CPD_SIZE_OF_SYSTEM_VERSION];
+ u8 fw_arch_ver[IPU_CPD_SIZE_OF_FW_ARCH_VERSION];
+ u8 rsvd[2];
+};
+
+/* ipu_cpd_hdr structure updated as the chksum and
+ * sub_partition_name is unused on host side
+ * CSE layout version 1.6 for ipu6se (hdr_len = 0x10)
+ * CSE layout version 1.7 for ipu6 (hdr_len = 0x14)
+ */
+struct __packed ipu_cpd_hdr {
+ u32 hdr_mark;
+ u32 ent_cnt;
+ u8 hdr_ver;
+ u8 ent_ver;
+ u8 hdr_len;
+};
+
+struct __packed ipu_cpd_ent {
+ u8 name[IPU_CPD_SIZE_OF_COMPONENT_NAME];
+ u32 offset;
+ u32 len;
+ u8 rsvd[4];
+};
+
+struct __packed ipu_cpd_metadata_cmpnt {
+ u32 id;
+ u32 size;
+ u32 ver;
+ u8 sha2_hash[IPU_CPD_METADATA_HASH_KEY_SIZE];
+ u32 entry_point;
+ u32 icache_base_offs;
+ u8 attrs[16];
+};
+
+struct __packed ipu6_cpd_metadata_cmpnt {
+ u32 id;
+ u32 size;
+ u32 ver;
+ u8 sha2_hash[IPU6_CPD_METADATA_HASH_KEY_SIZE];
+ u32 entry_point;
+ u32 icache_base_offs;
+ u8 attrs[16];
+};
+
+struct __packed ipu_cpd_metadata_extn {
+ u32 extn_type;
+ u32 len;
+ u32 img_type;
+ u8 rsvd[16];
+};
+
+struct __packed ipu_cpd_client_pkg_hdr {
+ u32 prog_list_offs;
+ u32 prog_list_size;
+ u32 prog_desc_offs;
+ u32 prog_desc_size;
+ u32 pg_manifest_offs;
+ u32 pg_manifest_size;
+ u32 prog_bin_offs;
+ u32 prog_bin_size;
+};
+
+void *ipu_cpd_create_pkg_dir(struct ipu_bus_device *adev,
+ const void *src,
+ dma_addr_t dma_addr_src,
+ dma_addr_t *dma_addr, unsigned int *pkg_dir_size);
+void ipu_cpd_free_pkg_dir(struct ipu_bus_device *adev,
+ u64 *pkg_dir,
+ dma_addr_t dma_addr, unsigned int pkg_dir_size);
+int ipu_cpd_validate_cpd_file(struct ipu_device *isp,
+ const void *cpd_file,
+ unsigned long cpd_file_size);
+unsigned int ipu_cpd_pkg_dir_get_address(const u64 *pkg_dir, int pkg_dir_idx);
+unsigned int ipu_cpd_pkg_dir_get_num_entries(const u64 *pkg_dir);
+unsigned int ipu_cpd_pkg_dir_get_size(const u64 *pkg_dir, int pkg_dir_idx);
+unsigned int ipu_cpd_pkg_dir_get_type(const u64 *pkg_dir, int pkg_dir_idx);
+
+#endif /* IPU_CPD_H */
diff --git a/drivers/media/pci/intel/ipu-dma.c b/drivers/media/pci/intel/ipu-dma.c
new file mode 100644
index 0000000000000..a661257a30de4
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-dma.c
@@ -0,0 +1,406 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2013 - 2021 Intel Corporation
+
+#include <asm/cacheflush.h>
+
+#include <linux/slab.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/gfp.h>
+#include <linux/highmem.h>
+#include <linux/iova.h>
+#include <linux/module.h>
+#include <linux/scatterlist.h>
+#include <linux/version.h>
+#include <linux/vmalloc.h>
+#include <linux/dma-map-ops.h>
+
+#include "ipu-dma.h"
+#include "ipu-bus.h"
+#include "ipu-mmu.h"
+
+struct vm_info {
+ struct list_head list;
+ struct page **pages;
+ void *vaddr;
+ unsigned long size;
+};
+
+static struct vm_info *get_vm_info(struct ipu_mmu *mmu, void *vaddr)
+{
+ struct vm_info *info, *save;
+
+ list_for_each_entry_safe(info, save, &mmu->vma_list, list) {
+ if (info->vaddr == vaddr)
+ return info;
+ }
+
+ return NULL;
+}
+
+/* Begin of things adapted from arch/arm/mm/dma-mapping.c */
+static void __dma_clear_buffer(struct page *page, size_t size,
+ unsigned long attrs)
+{
+ /*
+ * Ensure that the allocated pages are zeroed, and that any data
+ * lurking in the kernel direct-mapped region is invalidated.
+ */
+ void *ptr = page_address(page);
+
+ memset(ptr, 0, size);
+ if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
+ clflush_cache_range(ptr, size);
+}
+
+static struct page **__dma_alloc_buffer(struct device *dev, size_t size,
+ gfp_t gfp,
+ unsigned long attrs)
+{
+ struct page **pages;
+ int count = size >> PAGE_SHIFT;
+ int array_size = count * sizeof(struct page *);
+ int i = 0;
+
+ pages = kvzalloc(array_size, GFP_KERNEL);
+ if (!pages)
+ return NULL;
+
+ gfp |= __GFP_NOWARN;
+
+ while (count) {
+ int j, order = __fls(count);
+
+ pages[i] = alloc_pages(gfp, order);
+ while (!pages[i] && order)
+ pages[i] = alloc_pages(gfp, --order);
+ if (!pages[i])
+ goto error;
+
+ if (order) {
+ split_page(pages[i], order);
+ j = 1 << order;
+ while (--j)
+ pages[i + j] = pages[i] + j;
+ }
+
+ __dma_clear_buffer(pages[i], PAGE_SIZE << order, attrs);
+ i += 1 << order;
+ count -= 1 << order;
+ }
+
+ return pages;
+error:
+ while (i--)
+ if (pages[i])
+ __free_pages(pages[i], 0);
+ kvfree(pages);
+ return NULL;
+}
+
+static int __dma_free_buffer(struct device *dev, struct page **pages,
+ size_t size,
+ unsigned long attrs)
+{
+ int count = size >> PAGE_SHIFT;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ if (pages[i]) {
+ __dma_clear_buffer(pages[i], PAGE_SIZE, attrs);
+ __free_pages(pages[i], 0);
+ }
+ }
+
+ kvfree(pages);
+ return 0;
+}
+
+/* End of things adapted from arch/arm/mm/dma-mapping.c */
+
+static void ipu_dma_sync_single_for_cpu(struct device *dev,
+ dma_addr_t dma_handle,
+ size_t size,
+ enum dma_data_direction dir)
+{
+ struct ipu_mmu *mmu = to_ipu_bus_device(dev)->mmu;
+ unsigned long pa = ipu_mmu_iova_to_phys(mmu->dmap->mmu_info,
+ dma_handle);
+
+ clflush_cache_range(phys_to_virt(pa), size);
+}
+
+static void ipu_dma_sync_sg_for_cpu(struct device *dev,
+ struct scatterlist *sglist,
+ int nents, enum dma_data_direction dir)
+{
+ struct scatterlist *sg;
+ int i;
+
+ for_each_sg(sglist, sg, nents, i)
+ clflush_cache_range(page_to_virt(sg_page(sg)), sg->length);
+}
+
+static void *ipu_dma_alloc(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t gfp,
+ unsigned long attrs)
+{
+ struct ipu_mmu *mmu = to_ipu_bus_device(dev)->mmu;
+ struct page **pages;
+ struct iova *iova;
+ struct vm_info *info;
+ int i;
+ int rval;
+ unsigned long count;
+
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return NULL;
+
+ size = PAGE_ALIGN(size);
+ count = size >> PAGE_SHIFT;
+
+ iova = alloc_iova(&mmu->dmap->iovad, count,
+ dma_get_mask(dev) >> PAGE_SHIFT, 0);
+ if (!iova)
+ goto out_kfree;
+
+ pages = __dma_alloc_buffer(dev, size, gfp, attrs);
+ if (!pages)
+ goto out_free_iova;
+
+ for (i = 0; iova->pfn_lo + i <= iova->pfn_hi; i++) {
+ rval = ipu_mmu_map(mmu->dmap->mmu_info,
+ (iova->pfn_lo + i) << PAGE_SHIFT,
+ page_to_phys(pages[i]), PAGE_SIZE);
+ if (rval)
+ goto out_unmap;
+ }
+
+ info->vaddr = vmap(pages, count, VM_USERMAP, PAGE_KERNEL);
+ if (!info->vaddr)
+ goto out_unmap;
+
+ *dma_handle = iova->pfn_lo << PAGE_SHIFT;
+
+ info->pages = pages;
+ info->size = size;
+ list_add(&info->list, &mmu->vma_list);
+
+ return info->vaddr;
+
+out_unmap:
+ for (i--; i >= 0; i--) {
+ ipu_mmu_unmap(mmu->dmap->mmu_info,
+ (iova->pfn_lo + i) << PAGE_SHIFT, PAGE_SIZE);
+ }
+ __dma_free_buffer(dev, pages, size, attrs);
+
+out_free_iova:
+ __free_iova(&mmu->dmap->iovad, iova);
+out_kfree:
+ kfree(info);
+
+ return NULL;
+}
+
+static void ipu_dma_free(struct device *dev, size_t size, void *vaddr,
+ dma_addr_t dma_handle,
+ unsigned long attrs)
+{
+ struct ipu_mmu *mmu = to_ipu_bus_device(dev)->mmu;
+ struct page **pages;
+ struct vm_info *info;
+ struct iova *iova = find_iova(&mmu->dmap->iovad,
+ dma_handle >> PAGE_SHIFT);
+
+ if (WARN_ON(!iova))
+ return;
+
+ info = get_vm_info(mmu, vaddr);
+ if (WARN_ON(!info))
+ return;
+
+ if (WARN_ON(!info->vaddr))
+ return;
+
+ if (WARN_ON(!info->pages))
+ return;
+
+ list_del(&info->list);
+
+ size = PAGE_ALIGN(size);
+
+ pages = info->pages;
+
+ vunmap(vaddr);
+
+ ipu_mmu_unmap(mmu->dmap->mmu_info, iova->pfn_lo << PAGE_SHIFT,
+ (iova->pfn_hi - iova->pfn_lo + 1) << PAGE_SHIFT);
+
+ __dma_free_buffer(dev, pages, size, attrs);
+
+ mmu->tlb_invalidate(mmu);
+
+ __free_iova(&mmu->dmap->iovad, iova);
+
+ kfree(info);
+}
+
+static int ipu_dma_mmap(struct device *dev, struct vm_area_struct *vma,
+ void *addr, dma_addr_t iova, size_t size,
+ unsigned long attrs)
+{
+ struct ipu_mmu *mmu = to_ipu_bus_device(dev)->mmu;
+ struct vm_info *info;
+ size_t count = PAGE_ALIGN(size) >> PAGE_SHIFT;
+ size_t i;
+
+ info = get_vm_info(mmu, addr);
+ if (!info)
+ return -EFAULT;
+
+ if (!info->vaddr)
+ return -EFAULT;
+
+ if (vma->vm_start & ~PAGE_MASK)
+ return -EINVAL;
+
+ if (size > info->size)
+ return -EFAULT;
+
+ for (i = 0; i < count; i++)
+ vm_insert_page(vma, vma->vm_start + (i << PAGE_SHIFT),
+ info->pages[i]);
+
+ return 0;
+}
+
+static void ipu_dma_unmap_sg(struct device *dev,
+ struct scatterlist *sglist,
+ int nents, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ struct ipu_mmu *mmu = to_ipu_bus_device(dev)->mmu;
+ struct iova *iova = find_iova(&mmu->dmap->iovad,
+ sg_dma_address(sglist) >> PAGE_SHIFT);
+
+ if (!nents)
+ return;
+
+ if (WARN_ON(!iova))
+ return;
+
+ if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
+ ipu_dma_sync_sg_for_cpu(dev, sglist, nents, DMA_BIDIRECTIONAL);
+
+ ipu_mmu_unmap(mmu->dmap->mmu_info, iova->pfn_lo << PAGE_SHIFT,
+ (iova->pfn_hi - iova->pfn_lo + 1) << PAGE_SHIFT);
+
+ mmu->tlb_invalidate(mmu);
+
+ __free_iova(&mmu->dmap->iovad, iova);
+}
+
+static int ipu_dma_map_sg(struct device *dev, struct scatterlist *sglist,
+ int nents, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ struct ipu_mmu *mmu = to_ipu_bus_device(dev)->mmu;
+ struct scatterlist *sg;
+ struct iova *iova;
+ size_t size = 0;
+ u32 iova_addr;
+ int i;
+
+ for_each_sg(sglist, sg, nents, i)
+ size += PAGE_ALIGN(sg->length) >> PAGE_SHIFT;
+
+ dev_dbg(dev, "dmamap: mapping sg %d entries, %zu pages\n", nents, size);
+
+ iova = alloc_iova(&mmu->dmap->iovad, size,
+ dma_get_mask(dev) >> PAGE_SHIFT, 0);
+ if (!iova)
+ return 0;
+
+ dev_dbg(dev, "dmamap: iova low pfn %lu, high pfn %lu\n", iova->pfn_lo,
+ iova->pfn_hi);
+
+ iova_addr = iova->pfn_lo;
+
+ for_each_sg(sglist, sg, nents, i) {
+ int rval;
+
+ dev_dbg(dev, "mapping entry %d: iova 0x%8.8x,phy 0x%16.16llx\n",
+ i, iova_addr << PAGE_SHIFT,
+ (unsigned long long)page_to_phys(sg_page(sg)));
+ rval = ipu_mmu_map(mmu->dmap->mmu_info, iova_addr << PAGE_SHIFT,
+ page_to_phys(sg_page(sg)),
+ PAGE_ALIGN(sg->length));
+ if (rval)
+ goto out_fail;
+ sg_dma_address(sg) = iova_addr << PAGE_SHIFT;
+#ifdef CONFIG_NEED_SG_DMA_LENGTH
+ sg_dma_len(sg) = sg->length;
+#endif /* CONFIG_NEED_SG_DMA_LENGTH */
+
+ iova_addr += PAGE_ALIGN(sg->length) >> PAGE_SHIFT;
+ }
+
+ if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
+ ipu_dma_sync_sg_for_cpu(dev, sglist, nents, DMA_BIDIRECTIONAL);
+
+ mmu->tlb_invalidate(mmu);
+
+ return nents;
+
+out_fail:
+ ipu_dma_unmap_sg(dev, sglist, i, dir, attrs);
+
+ return 0;
+}
+
+/*
+ * Create scatter-list for the already allocated DMA buffer
+ */
+static int ipu_dma_get_sgtable(struct device *dev, struct sg_table *sgt,
+ void *cpu_addr, dma_addr_t handle, size_t size,
+ unsigned long attrs)
+{
+ struct ipu_mmu *mmu = to_ipu_bus_device(dev)->mmu;
+ struct vm_info *info;
+ int n_pages;
+ int ret = 0;
+
+ info = get_vm_info(mmu, cpu_addr);
+ if (!info)
+ return -EFAULT;
+
+ if (!info->vaddr)
+ return -EFAULT;
+
+ if (WARN_ON(!info->pages))
+ return -ENOMEM;
+
+ n_pages = PAGE_ALIGN(size) >> PAGE_SHIFT;
+
+ ret = sg_alloc_table_from_pages(sgt, info->pages, n_pages, 0, size,
+ GFP_KERNEL);
+ if (ret)
+ dev_dbg(dev, "IPU get sgt table fail\n");
+
+ return ret;
+}
+
+const struct dma_map_ops ipu_dma_ops = {
+ .alloc = ipu_dma_alloc,
+ .free = ipu_dma_free,
+ .mmap = ipu_dma_mmap,
+ .map_sg = ipu_dma_map_sg,
+ .unmap_sg = ipu_dma_unmap_sg,
+ .sync_single_for_cpu = ipu_dma_sync_single_for_cpu,
+ .sync_single_for_device = ipu_dma_sync_single_for_cpu,
+ .sync_sg_for_cpu = ipu_dma_sync_sg_for_cpu,
+ .sync_sg_for_device = ipu_dma_sync_sg_for_cpu,
+ .get_sgtable = ipu_dma_get_sgtable,
+};
diff --git a/drivers/media/pci/intel/ipu-dma.h b/drivers/media/pci/intel/ipu-dma.h
new file mode 100644
index 0000000000000..e3a68aa5adec6
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-dma.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2013 - 2020 Intel Corporation */
+
+#ifndef IPU_DMA_H
+#define IPU_DMA_H
+
+#include <linux/iova.h>
+
+struct ipu_mmu_info;
+
+struct ipu_dma_mapping {
+ struct ipu_mmu_info *mmu_info;
+ struct iova_domain iovad;
+ struct kref ref;
+};
+
+extern const struct dma_map_ops ipu_dma_ops;
+
+#endif /* IPU_DMA_H */
diff --git a/drivers/media/pci/intel/ipu-fw-com.c b/drivers/media/pci/intel/ipu-fw-com.c
new file mode 100644
index 0000000000000..59d69ea6110c6
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-fw-com.c
@@ -0,0 +1,496 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2013 - 2020 Intel Corporation
+
+#include <asm/cacheflush.h>
+
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/dma-mapping.h>
+
+#include "ipu.h"
+#include "ipu-fw-com.h"
+#include "ipu-bus.h"
+
+/*
+ * FWCOM layer is a shared resource between FW and driver. It consist
+ * of token queues to both send and receive directions. Queue is simply
+ * an array of structures with read and write indexes to the queue.
+ * There are 1...n queues to both directions. Queues locates in
+ * system ram and are mapped to ISP MMU so that both CPU and ISP can
+ * see the same buffer. Indexes are located in ISP DMEM so that FW code
+ * can poll those with very low latency and cost. CPU access to indexes is
+ * more costly but that happens only at message sending time and
+ * interrupt trigged message handling. CPU doesn't need to poll indexes.
+ * wr_reg / rd_reg are offsets to those dmem location. They are not
+ * the indexes itself.
+ */
+
+/* Shared structure between driver and FW - do not modify */
+struct ipu_fw_sys_queue {
+ u64 host_address;
+ u32 vied_address;
+ u32 size;
+ u32 token_size;
+ u32 wr_reg; /* reg no in subsystem's regmem */
+ u32 rd_reg;
+ u32 _align;
+};
+
+struct ipu_fw_sys_queue_res {
+ u64 host_address;
+ u32 vied_address;
+ u32 reg;
+};
+
+enum syscom_state {
+ /* Program load or explicit host setting should init to this */
+ SYSCOM_STATE_UNINIT = 0x57A7E000,
+ /* SP Syscom sets this when it is ready for use */
+ SYSCOM_STATE_READY = 0x57A7E001,
+ /* SP Syscom sets this when no more syscom accesses will happen */
+ SYSCOM_STATE_INACTIVE = 0x57A7E002
+};
+
+enum syscom_cmd {
+ /* Program load or explicit host setting should init to this */
+ SYSCOM_COMMAND_UNINIT = 0x57A7F000,
+ /* Host Syscom requests syscom to become inactive */
+ SYSCOM_COMMAND_INACTIVE = 0x57A7F001
+};
+
+/* firmware config: data that sent from the host to SP via DDR */
+/* Cell copies data into a context */
+
+struct ipu_fw_syscom_config {
+ u32 firmware_address;
+
+ u32 num_input_queues;
+ u32 num_output_queues;
+
+ /* ISP pointers to an array of ipu_fw_sys_queue structures */
+ u32 input_queue;
+ u32 output_queue;
+
+ /* ISYS / PSYS private data */
+ u32 specific_addr;
+ u32 specific_size;
+};
+
+/* End of shared structures / data */
+
+struct ipu_fw_com_context {
+ struct ipu_bus_device *adev;
+ void __iomem *dmem_addr;
+ int (*cell_ready)(struct ipu_bus_device *adev);
+ void (*cell_start)(struct ipu_bus_device *adev);
+
+ void *dma_buffer;
+ dma_addr_t dma_addr;
+ unsigned int dma_size;
+ unsigned long attrs;
+
+ unsigned int num_input_queues;
+ unsigned int num_output_queues;
+
+ struct ipu_fw_sys_queue *input_queue; /* array of host to SP queues */
+ struct ipu_fw_sys_queue *output_queue; /* array of SP to host */
+
+ void *config_host_addr;
+ void *specific_host_addr;
+ u64 ibuf_host_addr;
+ u64 obuf_host_addr;
+
+ u32 config_vied_addr;
+ u32 input_queue_vied_addr;
+ u32 output_queue_vied_addr;
+ u32 specific_vied_addr;
+ u32 ibuf_vied_addr;
+ u32 obuf_vied_addr;
+
+ unsigned int buttress_boot_offset;
+ void __iomem *base_addr;
+};
+
+#define FW_COM_WR_REG 0
+#define FW_COM_RD_REG 4
+
+#define REGMEM_OFFSET 0
+#define TUNIT_MAGIC_PATTERN 0x5a5a5a5a
+
+enum regmem_id {
+ /* pass pkg_dir address to SPC in non-secure mode */
+ PKG_DIR_ADDR_REG = 0,
+ /* Tunit CFG blob for secure - provided by host.*/
+ TUNIT_CFG_DWR_REG = 1,
+ /* syscom commands - modified by the host */
+ SYSCOM_COMMAND_REG = 2,
+ /* Store interrupt status - updated by SP */
+ SYSCOM_IRQ_REG = 3,
+ /* first syscom queue pointer register */
+ SYSCOM_QPR_BASE_REG = 4
+};
+
+enum message_direction {
+ DIR_RECV = 0,
+ DIR_SEND
+};
+
+#define BUTRESS_FW_BOOT_PARAMS_0 0x4000
+#define BUTTRESS_FW_BOOT_PARAM_REG(base, offset, id) ((base) \
+ + BUTRESS_FW_BOOT_PARAMS_0 + ((offset) + (id)) * 4)
+
+enum buttress_syscom_id {
+ /* pass syscom configuration to SPC */
+ SYSCOM_CONFIG_ID = 0,
+ /* syscom state - modified by SP */
+ SYSCOM_STATE_ID = 1,
+ /* syscom vtl0 addr mask */
+ SYSCOM_VTL0_ADDR_MASK_ID = 2,
+ SYSCOM_ID_MAX
+};
+
+static unsigned int num_messages(unsigned int wr, unsigned int rd,
+ unsigned int size)
+{
+ if (wr < rd)
+ wr += size;
+ return wr - rd;
+}
+
+static unsigned int num_free(unsigned int wr, unsigned int rd,
+ unsigned int size)
+{
+ return size - num_messages(wr, rd, size);
+}
+
+static unsigned int curr_index(void __iomem *q_dmem,
+ enum message_direction dir)
+{
+ return readl(q_dmem +
+ (dir == DIR_RECV ? FW_COM_RD_REG : FW_COM_WR_REG));
+}
+
+static unsigned int inc_index(void __iomem *q_dmem, struct ipu_fw_sys_queue *q,
+ enum message_direction dir)
+{
+ unsigned int index;
+
+ index = curr_index(q_dmem, dir) + 1;
+ return index >= q->size ? 0 : index;
+}
+
+static unsigned int ipu_sys_queue_buf_size(unsigned int size,
+ unsigned int token_size)
+{
+ return (size + 1) * token_size;
+}
+
+static void ipu_sys_queue_init(struct ipu_fw_sys_queue *q, unsigned int size,
+ unsigned int token_size,
+ struct ipu_fw_sys_queue_res *res)
+{
+ unsigned int buf_size;
+
+ q->size = size + 1;
+ q->token_size = token_size;
+ buf_size = ipu_sys_queue_buf_size(size, token_size);
+
+ /* acquire the shared buffer space */
+ q->host_address = res->host_address;
+ res->host_address += buf_size;
+ q->vied_address = res->vied_address;
+ res->vied_address += buf_size;
+
+ /* acquire the shared read and writer pointers */
+ q->wr_reg = res->reg;
+ res->reg++;
+ q->rd_reg = res->reg;
+ res->reg++;
+}
+
+void *ipu_fw_com_prepare(struct ipu_fw_com_cfg *cfg,
+ struct ipu_bus_device *adev, void __iomem *base)
+{
+ struct ipu_fw_com_context *ctx;
+ struct ipu_fw_syscom_config *fw_cfg;
+ unsigned int i;
+ unsigned int sizeall, offset;
+ unsigned int sizeinput = 0, sizeoutput = 0;
+ unsigned long attrs = 0;
+ struct ipu_fw_sys_queue_res res;
+
+ /* error handling */
+ if (!cfg || !cfg->cell_start || !cfg->cell_ready)
+ return NULL;
+
+ ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return NULL;
+ ctx->dmem_addr = base + cfg->dmem_addr + REGMEM_OFFSET;
+ ctx->adev = adev;
+ ctx->cell_start = cfg->cell_start;
+ ctx->cell_ready = cfg->cell_ready;
+ ctx->buttress_boot_offset = cfg->buttress_boot_offset;
+ ctx->base_addr = base;
+
+ ctx->num_input_queues = cfg->num_input_queues;
+ ctx->num_output_queues = cfg->num_output_queues;
+
+ /*
+ * Allocate DMA mapped memory. Allocate one big chunk.
+ */
+ sizeall =
+ /* Base cfg for FW */
+ roundup(sizeof(struct ipu_fw_syscom_config), 8) +
+ /* Descriptions of the queues */
+ cfg->num_input_queues * sizeof(struct ipu_fw_sys_queue) +
+ cfg->num_output_queues * sizeof(struct ipu_fw_sys_queue) +
+ /* FW specific information structure */
+ roundup(cfg->specific_size, 8);
+
+ for (i = 0; i < cfg->num_input_queues; i++)
+ sizeinput += ipu_sys_queue_buf_size(cfg->input[i].queue_size,
+ cfg->input[i].token_size);
+
+ for (i = 0; i < cfg->num_output_queues; i++)
+ sizeoutput += ipu_sys_queue_buf_size(cfg->output[i].queue_size,
+ cfg->output[i].token_size);
+
+ sizeall += sizeinput + sizeoutput;
+
+ ctx->dma_buffer = dma_alloc_attrs(&ctx->adev->dev, sizeall,
+ &ctx->dma_addr, GFP_KERNEL,
+ attrs);
+ ctx->attrs = attrs;
+ if (!ctx->dma_buffer) {
+ dev_err(&ctx->adev->dev, "failed to allocate dma memory\n");
+ kfree(ctx);
+ return NULL;
+ }
+
+ ctx->dma_size = sizeall;
+
+ /* This is the address where FW starts to parse allocations */
+ ctx->config_host_addr = ctx->dma_buffer;
+ ctx->config_vied_addr = ctx->dma_addr;
+ fw_cfg = (struct ipu_fw_syscom_config *)ctx->config_host_addr;
+ offset = roundup(sizeof(struct ipu_fw_syscom_config), 8);
+
+ ctx->input_queue = ctx->dma_buffer + offset;
+ ctx->input_queue_vied_addr = ctx->dma_addr + offset;
+ offset += cfg->num_input_queues * sizeof(struct ipu_fw_sys_queue);
+
+ ctx->output_queue = ctx->dma_buffer + offset;
+ ctx->output_queue_vied_addr = ctx->dma_addr + offset;
+ offset += cfg->num_output_queues * sizeof(struct ipu_fw_sys_queue);
+
+ ctx->specific_host_addr = ctx->dma_buffer + offset;
+ ctx->specific_vied_addr = ctx->dma_addr + offset;
+ offset += roundup(cfg->specific_size, 8);
+
+ ctx->ibuf_host_addr = (uintptr_t)(ctx->dma_buffer + offset);
+ ctx->ibuf_vied_addr = ctx->dma_addr + offset;
+ offset += sizeinput;
+
+ ctx->obuf_host_addr = (uintptr_t)(ctx->dma_buffer + offset);
+ ctx->obuf_vied_addr = ctx->dma_addr + offset;
+ offset += sizeoutput;
+
+ /* initialize input queues */
+ res.reg = SYSCOM_QPR_BASE_REG;
+ res.host_address = ctx->ibuf_host_addr;
+ res.vied_address = ctx->ibuf_vied_addr;
+ for (i = 0; i < cfg->num_input_queues; i++) {
+ ipu_sys_queue_init(ctx->input_queue + i,
+ cfg->input[i].queue_size,
+ cfg->input[i].token_size, &res);
+ }
+
+ /* initialize output queues */
+ res.host_address = ctx->obuf_host_addr;
+ res.vied_address = ctx->obuf_vied_addr;
+ for (i = 0; i < cfg->num_output_queues; i++) {
+ ipu_sys_queue_init(ctx->output_queue + i,
+ cfg->output[i].queue_size,
+ cfg->output[i].token_size, &res);
+ }
+
+ /* copy firmware specific data */
+ if (cfg->specific_addr && cfg->specific_size) {
+ memcpy((void *)ctx->specific_host_addr,
+ cfg->specific_addr, cfg->specific_size);
+ }
+
+ fw_cfg->num_input_queues = cfg->num_input_queues;
+ fw_cfg->num_output_queues = cfg->num_output_queues;
+ fw_cfg->input_queue = ctx->input_queue_vied_addr;
+ fw_cfg->output_queue = ctx->output_queue_vied_addr;
+ fw_cfg->specific_addr = ctx->specific_vied_addr;
+ fw_cfg->specific_size = cfg->specific_size;
+ return ctx;
+}
+EXPORT_SYMBOL_GPL(ipu_fw_com_prepare);
+
+int ipu_fw_com_open(struct ipu_fw_com_context *ctx)
+{
+ /*
+ * Disable tunit configuration by FW.
+ * This feature is used to configure tunit in secure mode.
+ */
+ writel(TUNIT_MAGIC_PATTERN, ctx->dmem_addr + TUNIT_CFG_DWR_REG * 4);
+ /* Check if SP is in valid state */
+ if (!ctx->cell_ready(ctx->adev))
+ return -EIO;
+
+ /* store syscom uninitialized command */
+ writel(SYSCOM_COMMAND_UNINIT,
+ ctx->dmem_addr + SYSCOM_COMMAND_REG * 4);
+
+ /* store syscom uninitialized state */
+ writel(SYSCOM_STATE_UNINIT,
+ BUTTRESS_FW_BOOT_PARAM_REG(ctx->base_addr,
+ ctx->buttress_boot_offset,
+ SYSCOM_STATE_ID));
+
+ /* store firmware configuration address */
+ writel(ctx->config_vied_addr,
+ BUTTRESS_FW_BOOT_PARAM_REG(ctx->base_addr,
+ ctx->buttress_boot_offset,
+ SYSCOM_CONFIG_ID));
+ ctx->cell_start(ctx->adev);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_fw_com_open);
+
+int ipu_fw_com_close(struct ipu_fw_com_context *ctx)
+{
+ int state;
+
+ state = readl(BUTTRESS_FW_BOOT_PARAM_REG(ctx->base_addr,
+ ctx->buttress_boot_offset,
+ SYSCOM_STATE_ID));
+ if (state != SYSCOM_STATE_READY)
+ return -EBUSY;
+
+ /* set close request flag */
+ writel(SYSCOM_COMMAND_INACTIVE, ctx->dmem_addr +
+ SYSCOM_COMMAND_REG * 4);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_fw_com_close);
+
+int ipu_fw_com_release(struct ipu_fw_com_context *ctx, unsigned int force)
+{
+ /* check if release is forced, an verify cell state if it is not */
+ if (!force && !ctx->cell_ready(ctx->adev))
+ return -EBUSY;
+
+ dma_free_attrs(&ctx->adev->dev, ctx->dma_size,
+ ctx->dma_buffer, ctx->dma_addr,
+ ctx->attrs);
+ kfree(ctx);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_fw_com_release);
+
+int ipu_fw_com_ready(struct ipu_fw_com_context *ctx)
+{
+ int state;
+
+ state = readl(BUTTRESS_FW_BOOT_PARAM_REG(ctx->base_addr,
+ ctx->buttress_boot_offset,
+ SYSCOM_STATE_ID));
+ if (state != SYSCOM_STATE_READY)
+ return -EBUSY; /* SPC is not ready to handle messages yet */
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_fw_com_ready);
+
+static bool is_index_valid(struct ipu_fw_sys_queue *q, unsigned int index)
+{
+ if (index >= q->size)
+ return false;
+ return true;
+}
+
+void *ipu_send_get_token(struct ipu_fw_com_context *ctx, int q_nbr)
+{
+ struct ipu_fw_sys_queue *q = &ctx->input_queue[q_nbr];
+ void __iomem *q_dmem = ctx->dmem_addr + q->wr_reg * 4;
+ unsigned int wr, rd;
+ unsigned int packets;
+ unsigned int index;
+
+ wr = readl(q_dmem + FW_COM_WR_REG);
+ rd = readl(q_dmem + FW_COM_RD_REG);
+
+ /* Catch indexes in dmem */
+ if (!is_index_valid(q, wr) || !is_index_valid(q, rd))
+ return NULL;
+
+ packets = num_free(wr + 1, rd, q->size);
+ if (!packets)
+ return NULL;
+
+ index = curr_index(q_dmem, DIR_SEND);
+
+ return (void *)(unsigned long)q->host_address + (index * q->token_size);
+}
+EXPORT_SYMBOL_GPL(ipu_send_get_token);
+
+void ipu_send_put_token(struct ipu_fw_com_context *ctx, int q_nbr)
+{
+ struct ipu_fw_sys_queue *q = &ctx->input_queue[q_nbr];
+ void __iomem *q_dmem = ctx->dmem_addr + q->wr_reg * 4;
+ int index = curr_index(q_dmem, DIR_SEND);
+
+ /* Increment index */
+ index = inc_index(q_dmem, q, DIR_SEND);
+
+ writel(index, q_dmem + FW_COM_WR_REG);
+}
+EXPORT_SYMBOL_GPL(ipu_send_put_token);
+
+void *ipu_recv_get_token(struct ipu_fw_com_context *ctx, int q_nbr)
+{
+ struct ipu_fw_sys_queue *q = &ctx->output_queue[q_nbr];
+ void __iomem *q_dmem = ctx->dmem_addr + q->wr_reg * 4;
+ unsigned int wr, rd;
+ unsigned int packets;
+ void *addr;
+
+ wr = readl(q_dmem + FW_COM_WR_REG);
+ rd = readl(q_dmem + FW_COM_RD_REG);
+
+ /* Catch indexes in dmem? */
+ if (!is_index_valid(q, wr) || !is_index_valid(q, rd))
+ return NULL;
+
+ packets = num_messages(wr, rd, q->size);
+ if (!packets)
+ return NULL;
+
+ addr = (void *)(unsigned long)q->host_address + (rd * q->token_size);
+
+ return addr;
+}
+EXPORT_SYMBOL_GPL(ipu_recv_get_token);
+
+void ipu_recv_put_token(struct ipu_fw_com_context *ctx, int q_nbr)
+{
+ struct ipu_fw_sys_queue *q = &ctx->output_queue[q_nbr];
+ void __iomem *q_dmem = ctx->dmem_addr + q->wr_reg * 4;
+ unsigned int rd = inc_index(q_dmem, q, DIR_RECV);
+
+ /* Release index */
+ writel(rd, q_dmem + FW_COM_RD_REG);
+}
+EXPORT_SYMBOL_GPL(ipu_recv_put_token);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Intel ipu fw comm library");
diff --git a/drivers/media/pci/intel/ipu-fw-com.h b/drivers/media/pci/intel/ipu-fw-com.h
new file mode 100644
index 0000000000000..855dba6673724
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-fw-com.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2013 - 2020 Intel Corporation */
+
+#ifndef IPU_FW_COM_H
+#define IPU_FW_COM_H
+
+struct ipu_fw_com_context;
+struct ipu_bus_device;
+
+struct ipu_fw_syscom_queue_config {
+ unsigned int queue_size; /* tokens per queue */
+ unsigned int token_size; /* bytes per token */
+};
+
+#define SYSCOM_BUTTRESS_FW_PARAMS_ISYS_OFFSET 0
+#define SYSCOM_BUTTRESS_FW_PARAMS_PSYS_OFFSET 7
+
+struct ipu_fw_com_cfg {
+ unsigned int num_input_queues;
+ unsigned int num_output_queues;
+ struct ipu_fw_syscom_queue_config *input;
+ struct ipu_fw_syscom_queue_config *output;
+
+ unsigned int dmem_addr;
+
+ /* firmware-specific configuration data */
+ void *specific_addr;
+ unsigned int specific_size;
+ int (*cell_ready)(struct ipu_bus_device *adev);
+ void (*cell_start)(struct ipu_bus_device *adev);
+
+ unsigned int buttress_boot_offset;
+};
+
+void *ipu_fw_com_prepare(struct ipu_fw_com_cfg *cfg,
+ struct ipu_bus_device *adev, void __iomem *base);
+
+int ipu_fw_com_open(struct ipu_fw_com_context *ctx);
+int ipu_fw_com_ready(struct ipu_fw_com_context *ctx);
+int ipu_fw_com_close(struct ipu_fw_com_context *ctx);
+int ipu_fw_com_release(struct ipu_fw_com_context *ctx, unsigned int force);
+
+void *ipu_recv_get_token(struct ipu_fw_com_context *ctx, int q_nbr);
+void ipu_recv_put_token(struct ipu_fw_com_context *ctx, int q_nbr);
+void *ipu_send_get_token(struct ipu_fw_com_context *ctx, int q_nbr);
+void ipu_send_put_token(struct ipu_fw_com_context *ctx, int q_nbr);
+
+#endif
diff --git a/drivers/media/pci/intel/ipu-fw-isys.c b/drivers/media/pci/intel/ipu-fw-isys.c
new file mode 100644
index 0000000000000..fb03a9183025d
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-fw-isys.c
@@ -0,0 +1,600 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2013 - 2021 Intel Corporation
+
+#include <asm/cacheflush.h>
+
+#include <linux/kernel.h>
+#include <linux/delay.h>
+
+#include "ipu.h"
+#include "ipu-trace.h"
+#include "ipu-platform-regs.h"
+#include "ipu-platform.h"
+#include "ipu-fw-isys.h"
+#include "ipu-fw-com.h"
+#include "ipu-isys.h"
+
+#define IPU_FW_UNSUPPORTED_DATA_TYPE 0
+static const uint32_t
+extracted_bits_per_pixel_per_mipi_data_type[N_IPU_FW_ISYS_MIPI_DATA_TYPE] = {
+ 64, /* [0x00] IPU_FW_ISYS_MIPI_DATA_TYPE_FRAME_START_CODE */
+ 64, /* [0x01] IPU_FW_ISYS_MIPI_DATA_TYPE_FRAME_END_CODE */
+ 64, /* [0x02] IPU_FW_ISYS_MIPI_DATA_TYPE_LINE_START_CODE */
+ 64, /* [0x03] IPU_FW_ISYS_MIPI_DATA_TYPE_LINE_END_CODE */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x04] */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x05] */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x06] */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x07] */
+ 64, /* [0x08] IPU_FW_ISYS_MIPI_DATA_TYPE_GENERIC_SHORT1 */
+ 64, /* [0x09] IPU_FW_ISYS_MIPI_DATA_TYPE_GENERIC_SHORT2 */
+ 64, /* [0x0A] IPU_FW_ISYS_MIPI_DATA_TYPE_GENERIC_SHORT3 */
+ 64, /* [0x0B] IPU_FW_ISYS_MIPI_DATA_TYPE_GENERIC_SHORT4 */
+ 64, /* [0x0C] IPU_FW_ISYS_MIPI_DATA_TYPE_GENERIC_SHORT5 */
+ 64, /* [0x0D] IPU_FW_ISYS_MIPI_DATA_TYPE_GENERIC_SHORT6 */
+ 64, /* [0x0E] IPU_FW_ISYS_MIPI_DATA_TYPE_GENERIC_SHORT7 */
+ 64, /* [0x0F] IPU_FW_ISYS_MIPI_DATA_TYPE_GENERIC_SHORT8 */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x10] */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x11] */
+ 8, /* [0x12] IPU_FW_ISYS_MIPI_DATA_TYPE_EMBEDDED */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x13] */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x14] */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x15] */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x16] */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x17] */
+ 12, /* [0x18] IPU_FW_ISYS_MIPI_DATA_TYPE_YUV420_8 */
+ 15, /* [0x19] IPU_FW_ISYS_MIPI_DATA_TYPE_YUV420_10 */
+ 12, /* [0x1A] IPU_FW_ISYS_MIPI_DATA_TYPE_YUV420_8_LEGACY */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x1B] */
+ 12, /* [0x1C] IPU_FW_ISYS_MIPI_DATA_TYPE_YUV420_8_SHIFT */
+ 15, /* [0x1D] IPU_FW_ISYS_MIPI_DATA_TYPE_YUV420_10_SHIFT */
+ 16, /* [0x1E] IPU_FW_ISYS_MIPI_DATA_TYPE_YUV422_8 */
+ 20, /* [0x1F] IPU_FW_ISYS_MIPI_DATA_TYPE_YUV422_10 */
+ 16, /* [0x20] IPU_FW_ISYS_MIPI_DATA_TYPE_RGB_444 */
+ 16, /* [0x21] IPU_FW_ISYS_MIPI_DATA_TYPE_RGB_555 */
+ 16, /* [0x22] IPU_FW_ISYS_MIPI_DATA_TYPE_RGB_565 */
+ 18, /* [0x23] IPU_FW_ISYS_MIPI_DATA_TYPE_RGB_666 */
+ 24, /* [0x24] IPU_FW_ISYS_MIPI_DATA_TYPE_RGB_888 */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x25] */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x26] */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x27] */
+ 6, /* [0x28] IPU_FW_ISYS_MIPI_DATA_TYPE_RAW_6 */
+ 7, /* [0x29] IPU_FW_ISYS_MIPI_DATA_TYPE_RAW_7 */
+ 8, /* [0x2A] IPU_FW_ISYS_MIPI_DATA_TYPE_RAW_8 */
+ 10, /* [0x2B] IPU_FW_ISYS_MIPI_DATA_TYPE_RAW_10 */
+ 12, /* [0x2C] IPU_FW_ISYS_MIPI_DATA_TYPE_RAW_12 */
+ 14, /* [0x2D] IPU_FW_ISYS_MIPI_DATA_TYPE_RAW_14 */
+ 16, /* [0x2E] IPU_FW_ISYS_MIPI_DATA_TYPE_RAW_16 */
+ 8, /* [0x2F] IPU_FW_ISYS_MIPI_DATA_TYPE_BINARY_8 */
+ 8, /* [0x30] IPU_FW_ISYS_MIPI_DATA_TYPE_USER_DEF1 */
+ 8, /* [0x31] IPU_FW_ISYS_MIPI_DATA_TYPE_USER_DEF2 */
+ 8, /* [0x32] IPU_FW_ISYS_MIPI_DATA_TYPE_USER_DEF3 */
+ 8, /* [0x33] IPU_FW_ISYS_MIPI_DATA_TYPE_USER_DEF4 */
+ 8, /* [0x34] IPU_FW_ISYS_MIPI_DATA_TYPE_USER_DEF5 */
+ 8, /* [0x35] IPU_FW_ISYS_MIPI_DATA_TYPE_USER_DEF6 */
+ 8, /* [0x36] IPU_FW_ISYS_MIPI_DATA_TYPE_USER_DEF7 */
+ 8, /* [0x37] IPU_FW_ISYS_MIPI_DATA_TYPE_USER_DEF8 */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x38] */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x39] */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x3A] */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x3B] */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x3C] */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x3D] */
+ IPU_FW_UNSUPPORTED_DATA_TYPE, /* [0x3E] */
+ IPU_FW_UNSUPPORTED_DATA_TYPE /* [0x3F] */
+};
+
+static const char send_msg_types[N_IPU_FW_ISYS_SEND_TYPE][32] = {
+ "STREAM_OPEN",
+ "STREAM_START",
+ "STREAM_START_AND_CAPTURE",
+ "STREAM_CAPTURE",
+ "STREAM_STOP",
+ "STREAM_FLUSH",
+ "STREAM_CLOSE"
+};
+
+static int handle_proxy_response(struct ipu_isys *isys, unsigned int req_id)
+{
+ struct ipu_fw_isys_proxy_resp_info_abi *resp;
+ int rval = -EIO;
+
+ resp = (struct ipu_fw_isys_proxy_resp_info_abi *)
+ ipu_recv_get_token(isys->fwcom, IPU_BASE_PROXY_RECV_QUEUES);
+ if (!resp)
+ return 1;
+
+ dev_dbg(&isys->adev->dev,
+ "Proxy response: id 0x%x, error %d, details %d\n",
+ resp->request_id, resp->error_info.error,
+ resp->error_info.error_details);
+
+ if (req_id == resp->request_id)
+ rval = 0;
+
+ ipu_recv_put_token(isys->fwcom, IPU_BASE_PROXY_RECV_QUEUES);
+ return rval;
+}
+
+/* Simple blocking proxy send function */
+int ipu_fw_isys_send_proxy_token(struct ipu_isys *isys,
+ unsigned int req_id,
+ unsigned int index,
+ unsigned int offset, u32 value)
+{
+ struct ipu_fw_com_context *ctx = isys->fwcom;
+ struct ipu_fw_proxy_send_queue_token *token;
+ unsigned int timeout = 1000;
+ int rval = -EBUSY;
+
+ dev_dbg(&isys->adev->dev,
+ "proxy send token: req_id 0x%x, index %d, offset 0x%x, value 0x%x\n",
+ req_id, index, offset, value);
+
+ token = ipu_send_get_token(ctx, IPU_BASE_PROXY_SEND_QUEUES);
+ if (!token)
+ goto leave;
+
+ token->request_id = req_id;
+ token->region_index = index;
+ token->offset = offset;
+ token->value = value;
+ ipu_send_put_token(ctx, IPU_BASE_PROXY_SEND_QUEUES);
+
+ /* Currently proxy doesn't support irq based service. Poll */
+ do {
+ usleep_range(100, 110);
+ rval = handle_proxy_response(isys, req_id);
+ if (!rval)
+ break;
+ if (rval == -EIO) {
+ dev_err(&isys->adev->dev,
+ "Proxy response received with unexpected id\n");
+ break;
+ }
+ timeout--;
+ } while (rval && timeout);
+
+ if (!timeout)
+ dev_err(&isys->adev->dev, "Proxy response timed out\n");
+leave:
+ return rval;
+}
+
+int
+ipu_fw_isys_complex_cmd(struct ipu_isys *isys,
+ const unsigned int stream_handle,
+ void *cpu_mapped_buf,
+ dma_addr_t dma_mapped_buf,
+ size_t size, enum ipu_fw_isys_send_type send_type)
+{
+ struct ipu_fw_com_context *ctx = isys->fwcom;
+ struct ipu_fw_send_queue_token *token;
+
+ if (send_type >= N_IPU_FW_ISYS_SEND_TYPE)
+ return -EINVAL;
+
+ dev_dbg(&isys->adev->dev, "send_token: %s\n",
+ send_msg_types[send_type]);
+
+ /*
+ * Time to flush cache in case we have some payload. Not all messages
+ * have that
+ */
+ if (cpu_mapped_buf)
+ clflush_cache_range(cpu_mapped_buf, size);
+
+ token = ipu_send_get_token(ctx,
+ stream_handle + IPU_BASE_MSG_SEND_QUEUES);
+ if (!token)
+ return -EBUSY;
+
+ token->payload = dma_mapped_buf;
+ token->buf_handle = (unsigned long)cpu_mapped_buf;
+ token->send_type = send_type;
+
+ ipu_send_put_token(ctx, stream_handle + IPU_BASE_MSG_SEND_QUEUES);
+
+ return 0;
+}
+
+int ipu_fw_isys_simple_cmd(struct ipu_isys *isys,
+ const unsigned int stream_handle,
+ enum ipu_fw_isys_send_type send_type)
+{
+ return ipu_fw_isys_complex_cmd(isys, stream_handle, NULL, 0, 0,
+ send_type);
+}
+
+int ipu_fw_isys_close(struct ipu_isys *isys)
+{
+ struct device *dev = &isys->adev->dev;
+ int timeout = IPU_ISYS_TURNOFF_TIMEOUT;
+ int rval;
+ unsigned long flags;
+ void *fwcom;
+
+ /*
+ * Stop the isys fw. Actual close takes
+ * some time as the FW must stop its actions including code fetch
+ * to SP icache.
+ * spinlock to wait the interrupt handler to be finished
+ */
+ spin_lock_irqsave(&isys->power_lock, flags);
+ rval = ipu_fw_com_close(isys->fwcom);
+ fwcom = isys->fwcom;
+ isys->fwcom = NULL;
+ spin_unlock_irqrestore(&isys->power_lock, flags);
+ if (rval)
+ dev_err(dev, "Device close failure: %d\n", rval);
+
+ /* release probably fails if the close failed. Let's try still */
+ do {
+ usleep_range(IPU_ISYS_TURNOFF_DELAY_US,
+ 2 * IPU_ISYS_TURNOFF_DELAY_US);
+ rval = ipu_fw_com_release(fwcom, 0);
+ timeout--;
+ } while (rval != 0 && timeout);
+
+ if (rval) {
+ dev_err(dev, "Device release time out %d\n", rval);
+ spin_lock_irqsave(&isys->power_lock, flags);
+ isys->fwcom = fwcom;
+ spin_unlock_irqrestore(&isys->power_lock, flags);
+ }
+
+ return rval;
+}
+
+void ipu_fw_isys_cleanup(struct ipu_isys *isys)
+{
+ int ret;
+
+ ret = ipu_fw_com_release(isys->fwcom, 1);
+ if (ret < 0)
+ dev_err(&isys->adev->dev,
+ "Device busy, fw_com release failed.");
+ isys->fwcom = NULL;
+}
+
+static void start_sp(struct ipu_bus_device *adev)
+{
+ struct ipu_isys *isys = ipu_bus_get_drvdata(adev);
+ void __iomem *spc_regs_base = isys->pdata->base +
+ isys->pdata->ipdata->hw_variant.spc_offset;
+ u32 val = 0;
+
+ val |= IPU_ISYS_SPC_STATUS_START |
+ IPU_ISYS_SPC_STATUS_RUN |
+ IPU_ISYS_SPC_STATUS_CTRL_ICACHE_INVALIDATE;
+ val |= isys->icache_prefetch ? IPU_ISYS_SPC_STATUS_ICACHE_PREFETCH : 0;
+
+ writel(val, spc_regs_base + IPU_ISYS_REG_SPC_STATUS_CTRL);
+}
+
+static int query_sp(struct ipu_bus_device *adev)
+{
+ struct ipu_isys *isys = ipu_bus_get_drvdata(adev);
+ void __iomem *spc_regs_base = isys->pdata->base +
+ isys->pdata->ipdata->hw_variant.spc_offset;
+ u32 val = readl(spc_regs_base + IPU_ISYS_REG_SPC_STATUS_CTRL);
+
+ /* return true when READY == 1, START == 0 */
+ val &= IPU_ISYS_SPC_STATUS_READY | IPU_ISYS_SPC_STATUS_START;
+
+ return val == IPU_ISYS_SPC_STATUS_READY;
+}
+
+static int ipu6_isys_fwcom_cfg_init(struct ipu_isys *isys,
+ struct ipu_fw_com_cfg *fwcom,
+ unsigned int num_streams)
+{
+ int i;
+ unsigned int size;
+ struct ipu_fw_syscom_queue_config *input_queue_cfg;
+ struct ipu_fw_syscom_queue_config *output_queue_cfg;
+ struct ipu6_fw_isys_fw_config *isys_fw_cfg;
+ int num_out_message_queues = 1;
+ int type_proxy = IPU_FW_ISYS_QUEUE_TYPE_PROXY;
+ int type_dev = IPU_FW_ISYS_QUEUE_TYPE_DEV;
+ int type_msg = IPU_FW_ISYS_QUEUE_TYPE_MSG;
+ int base_dev_send = IPU_BASE_DEV_SEND_QUEUES;
+ int base_msg_send = IPU_BASE_MSG_SEND_QUEUES;
+ int base_msg_recv = IPU_BASE_MSG_RECV_QUEUES;
+ int num_in_message_queues;
+ unsigned int max_streams;
+ unsigned int max_send_queues, max_sram_blocks, max_devq_size;
+
+ max_streams = IPU6_ISYS_NUM_STREAMS;
+ max_send_queues = IPU6_N_MAX_SEND_QUEUES;
+ max_sram_blocks = IPU6_NOF_SRAM_BLOCKS_MAX;
+ max_devq_size = IPU6_DEV_SEND_QUEUE_SIZE;
+ if (ipu_ver == IPU_VER_6SE) {
+ max_streams = IPU6SE_ISYS_NUM_STREAMS;
+ max_send_queues = IPU6SE_N_MAX_SEND_QUEUES;
+ max_sram_blocks = IPU6SE_NOF_SRAM_BLOCKS_MAX;
+ max_devq_size = IPU6SE_DEV_SEND_QUEUE_SIZE;
+ }
+
+ num_in_message_queues = clamp_t(unsigned int, num_streams, 1,
+ max_streams);
+ isys_fw_cfg = devm_kzalloc(&isys->adev->dev, sizeof(*isys_fw_cfg),
+ GFP_KERNEL);
+ if (!isys_fw_cfg)
+ return -ENOMEM;
+
+ isys_fw_cfg->num_send_queues[IPU_FW_ISYS_QUEUE_TYPE_PROXY] =
+ IPU_N_MAX_PROXY_SEND_QUEUES;
+ isys_fw_cfg->num_send_queues[IPU_FW_ISYS_QUEUE_TYPE_DEV] =
+ IPU_N_MAX_DEV_SEND_QUEUES;
+ isys_fw_cfg->num_send_queues[IPU_FW_ISYS_QUEUE_TYPE_MSG] =
+ num_in_message_queues;
+ isys_fw_cfg->num_recv_queues[IPU_FW_ISYS_QUEUE_TYPE_PROXY] =
+ IPU_N_MAX_PROXY_RECV_QUEUES;
+ /* Common msg/dev return queue */
+ isys_fw_cfg->num_recv_queues[IPU_FW_ISYS_QUEUE_TYPE_DEV] = 0;
+ isys_fw_cfg->num_recv_queues[IPU_FW_ISYS_QUEUE_TYPE_MSG] =
+ num_out_message_queues;
+
+ size = sizeof(*input_queue_cfg) * max_send_queues;
+ input_queue_cfg = devm_kzalloc(&isys->adev->dev, size, GFP_KERNEL);
+ if (!input_queue_cfg)
+ return -ENOMEM;
+
+ size = sizeof(*output_queue_cfg) * IPU_N_MAX_RECV_QUEUES;
+ output_queue_cfg = devm_kzalloc(&isys->adev->dev, size, GFP_KERNEL);
+ if (!output_queue_cfg)
+ return -ENOMEM;
+
+ fwcom->input = input_queue_cfg;
+ fwcom->output = output_queue_cfg;
+
+ fwcom->num_input_queues =
+ isys_fw_cfg->num_send_queues[type_proxy] +
+ isys_fw_cfg->num_send_queues[type_dev] +
+ isys_fw_cfg->num_send_queues[type_msg];
+
+ fwcom->num_output_queues =
+ isys_fw_cfg->num_recv_queues[type_proxy] +
+ isys_fw_cfg->num_recv_queues[type_dev] +
+ isys_fw_cfg->num_recv_queues[type_msg];
+
+ /* SRAM partitioning. Equal partitioning is set. */
+ for (i = 0; i < max_sram_blocks; i++) {
+ if (i < num_in_message_queues)
+ isys_fw_cfg->buffer_partition.num_gda_pages[i] =
+ (IPU_DEVICE_GDA_NR_PAGES *
+ IPU_DEVICE_GDA_VIRT_FACTOR) /
+ num_in_message_queues;
+ else
+ isys_fw_cfg->buffer_partition.num_gda_pages[i] = 0;
+ }
+
+ /* FW assumes proxy interface at fwcom queue 0 */
+ for (i = 0; i < isys_fw_cfg->num_send_queues[type_proxy]; i++) {
+ input_queue_cfg[i].token_size =
+ sizeof(struct ipu_fw_proxy_send_queue_token);
+ input_queue_cfg[i].queue_size = IPU_ISYS_SIZE_PROXY_SEND_QUEUE;
+ }
+
+ for (i = 0; i < isys_fw_cfg->num_send_queues[type_dev]; i++) {
+ input_queue_cfg[base_dev_send + i].token_size =
+ sizeof(struct ipu_fw_send_queue_token);
+ input_queue_cfg[base_dev_send + i].queue_size = max_devq_size;
+ }
+
+ for (i = 0; i < isys_fw_cfg->num_send_queues[type_msg]; i++) {
+ input_queue_cfg[base_msg_send + i].token_size =
+ sizeof(struct ipu_fw_send_queue_token);
+ input_queue_cfg[base_msg_send + i].queue_size =
+ IPU_ISYS_SIZE_SEND_QUEUE;
+ }
+
+ for (i = 0; i < isys_fw_cfg->num_recv_queues[type_proxy]; i++) {
+ output_queue_cfg[i].token_size =
+ sizeof(struct ipu_fw_proxy_resp_queue_token);
+ output_queue_cfg[i].queue_size = IPU_ISYS_SIZE_PROXY_RECV_QUEUE;
+ }
+ /* There is no recv DEV queue */
+ for (i = 0; i < isys_fw_cfg->num_recv_queues[type_msg]; i++) {
+ output_queue_cfg[base_msg_recv + i].token_size =
+ sizeof(struct ipu_fw_resp_queue_token);
+ output_queue_cfg[base_msg_recv + i].queue_size =
+ IPU_ISYS_SIZE_RECV_QUEUE;
+ }
+
+ fwcom->dmem_addr = isys->pdata->ipdata->hw_variant.dmem_offset;
+ fwcom->specific_addr = isys_fw_cfg;
+ fwcom->specific_size = sizeof(*isys_fw_cfg);
+
+ return 0;
+}
+
+int ipu_fw_isys_init(struct ipu_isys *isys, unsigned int num_streams)
+{
+ int retry = IPU_ISYS_OPEN_RETRY;
+
+ struct ipu_fw_com_cfg fwcom = {
+ .cell_start = start_sp,
+ .cell_ready = query_sp,
+ .buttress_boot_offset = SYSCOM_BUTTRESS_FW_PARAMS_ISYS_OFFSET,
+ };
+
+ struct device *dev = &isys->adev->dev;
+ int rval;
+
+ ipu6_isys_fwcom_cfg_init(isys, &fwcom, num_streams);
+
+ isys->fwcom = ipu_fw_com_prepare(&fwcom, isys->adev, isys->pdata->base);
+ if (!isys->fwcom) {
+ dev_err(dev, "isys fw com prepare failed\n");
+ return -EIO;
+ }
+
+ rval = ipu_fw_com_open(isys->fwcom);
+ if (rval) {
+ dev_err(dev, "isys fw com open failed %d\n", rval);
+ return rval;
+ }
+
+ do {
+ usleep_range(IPU_ISYS_OPEN_TIMEOUT_US,
+ IPU_ISYS_OPEN_TIMEOUT_US + 10);
+ rval = ipu_fw_com_ready(isys->fwcom);
+ if (!rval)
+ break;
+ retry--;
+ } while (retry > 0);
+
+ if (!retry && rval) {
+ dev_err(dev, "isys port open ready failed %d\n", rval);
+ ipu_fw_isys_close(isys);
+ }
+
+ return rval;
+}
+
+struct ipu_fw_isys_resp_info_abi *
+ipu_fw_isys_get_resp(void *context, unsigned int queue,
+ struct ipu_fw_isys_resp_info_abi *response)
+{
+ return (struct ipu_fw_isys_resp_info_abi *)
+ ipu_recv_get_token(context, queue);
+}
+
+void ipu_fw_isys_put_resp(void *context, unsigned int queue)
+{
+ ipu_recv_put_token(context, queue);
+}
+
+void ipu_fw_isys_set_params(struct ipu_fw_isys_stream_cfg_data_abi *stream_cfg)
+{
+ unsigned int i;
+ unsigned int idx;
+
+ for (i = 0; i < stream_cfg->nof_input_pins; i++) {
+ idx = stream_cfg->input_pins[i].dt;
+ stream_cfg->input_pins[i].bits_per_pix =
+ extracted_bits_per_pixel_per_mipi_data_type[idx];
+ stream_cfg->input_pins[i].mapped_dt =
+ N_IPU_FW_ISYS_MIPI_DATA_TYPE;
+ stream_cfg->input_pins[i].mipi_decompression =
+ IPU_FW_ISYS_MIPI_COMPRESSION_TYPE_NO_COMPRESSION;
+ /*
+ * CSI BE can be used to crop and change bayer order.
+ * NOTE: currently it only crops first and last lines in height.
+ */
+ if (stream_cfg->crop.top_offset & 1)
+ stream_cfg->input_pins[i].crop_first_and_last_lines = 1;
+ stream_cfg->input_pins[i].capture_mode =
+ IPU_FW_ISYS_CAPTURE_MODE_REGULAR;
+ }
+}
+
+void
+ipu_fw_isys_dump_stream_cfg(struct device *dev,
+ struct ipu_fw_isys_stream_cfg_data_abi *stream_cfg)
+{
+ unsigned int i;
+
+ dev_dbg(dev, "---------------------------\n");
+ dev_dbg(dev, "IPU_FW_ISYS_STREAM_CFG_DATA\n");
+ dev_dbg(dev, "---------------------------\n");
+
+ dev_dbg(dev, "Source %d\n", stream_cfg->src);
+ dev_dbg(dev, "VC %d\n", stream_cfg->vc);
+ dev_dbg(dev, "Nof input pins %d\n", stream_cfg->nof_input_pins);
+ dev_dbg(dev, "Nof output pins %d\n", stream_cfg->nof_output_pins);
+
+ for (i = 0; i < stream_cfg->nof_input_pins; i++) {
+ dev_dbg(dev, "Input pin %d\n", i);
+ dev_dbg(dev, "Mipi data type 0x%0x\n",
+ stream_cfg->input_pins[i].dt);
+ dev_dbg(dev, "Mipi store mode %d\n",
+ stream_cfg->input_pins[i].mipi_store_mode);
+ dev_dbg(dev, "Bits per pixel %d\n",
+ stream_cfg->input_pins[i].bits_per_pix);
+ dev_dbg(dev, "Mapped data type 0x%0x\n",
+ stream_cfg->input_pins[i].mapped_dt);
+ dev_dbg(dev, "Input res width %d\n",
+ stream_cfg->input_pins[i].input_res.width);
+ dev_dbg(dev, "Input res height %d\n",
+ stream_cfg->input_pins[i].input_res.height);
+ dev_dbg(dev, "mipi decompression %d\n",
+ stream_cfg->input_pins[i].mipi_decompression);
+ dev_dbg(dev, "capture_mode %d\n",
+ stream_cfg->input_pins[i].capture_mode);
+ }
+
+ dev_dbg(dev, "Crop info\n");
+ dev_dbg(dev, "Crop.top_offset %d\n", stream_cfg->crop.top_offset);
+ dev_dbg(dev, "Crop.left_offset %d\n", stream_cfg->crop.left_offset);
+ dev_dbg(dev, "Crop.bottom_offset %d\n",
+ stream_cfg->crop.bottom_offset);
+ dev_dbg(dev, "Crop.right_offset %d\n", stream_cfg->crop.right_offset);
+ dev_dbg(dev, "----------------\n");
+
+ for (i = 0; i < stream_cfg->nof_output_pins; i++) {
+ dev_dbg(dev, "Output pin %d\n", i);
+ dev_dbg(dev, "Output input pin id %d\n",
+ stream_cfg->output_pins[i].input_pin_id);
+ dev_dbg(dev, "Output res width %d\n",
+ stream_cfg->output_pins[i].output_res.width);
+ dev_dbg(dev, "Output res height %d\n",
+ stream_cfg->output_pins[i].output_res.height);
+ dev_dbg(dev, "Stride %d\n", stream_cfg->output_pins[i].stride);
+ dev_dbg(dev, "Pin type %d\n", stream_cfg->output_pins[i].pt);
+ dev_dbg(dev, "Payload %d\n",
+ stream_cfg->output_pins[i].payload_buf_size);
+ dev_dbg(dev, "Ft %d\n", stream_cfg->output_pins[i].ft);
+ dev_dbg(dev, "Watermar in lines %d\n",
+ stream_cfg->output_pins[i].watermark_in_lines);
+ dev_dbg(dev, "Send irq %d\n",
+ stream_cfg->output_pins[i].send_irq);
+ dev_dbg(dev, "Reserve compression %d\n",
+ stream_cfg->output_pins[i].reserve_compression);
+ dev_dbg(dev, "snoopable %d\n",
+ stream_cfg->output_pins[i].snoopable);
+ dev_dbg(dev, "error_handling_enable %d\n",
+ stream_cfg->output_pins[i].error_handling_enable);
+ dev_dbg(dev, "sensor type %d\n",
+ stream_cfg->output_pins[i].sensor_type);
+ dev_dbg(dev, "----------------\n");
+ }
+
+ dev_dbg(dev, "Isl_use %d\n", stream_cfg->isl_use);
+ dev_dbg(dev, "stream sensor_type %d\n", stream_cfg->sensor_type);
+
+}
+
+void ipu_fw_isys_dump_frame_buff_set(struct device *dev,
+ struct ipu_fw_isys_frame_buff_set_abi *buf,
+ unsigned int outputs)
+{
+ unsigned int i;
+
+ dev_dbg(dev, "--------------------------\n");
+ dev_dbg(dev, "IPU_FW_ISYS_FRAME_BUFF_SET\n");
+ dev_dbg(dev, "--------------------------\n");
+
+ for (i = 0; i < outputs; i++) {
+ dev_dbg(dev, "Output pin %d\n", i);
+ dev_dbg(dev, "out_buf_id %llu\n",
+ buf->output_pins[i].out_buf_id);
+ dev_dbg(dev, "addr 0x%x\n", buf->output_pins[i].addr);
+ dev_dbg(dev, "compress %u\n", buf->output_pins[i].compress);
+
+ dev_dbg(dev, "----------------\n");
+ }
+
+ dev_dbg(dev, "send_irq_sof 0x%x\n", buf->send_irq_sof);
+ dev_dbg(dev, "send_irq_eof 0x%x\n", buf->send_irq_eof);
+ dev_dbg(dev, "send_resp_sof 0x%x\n", buf->send_resp_sof);
+ dev_dbg(dev, "send_resp_eof 0x%x\n", buf->send_resp_eof);
+ dev_dbg(dev, "send_irq_capture_ack 0x%x\n", buf->send_irq_capture_ack);
+ dev_dbg(dev, "send_irq_capture_done 0x%x\n",
+ buf->send_irq_capture_done);
+ dev_dbg(dev, "send_resp_capture_ack 0x%x\n",
+ buf->send_resp_capture_ack);
+ dev_dbg(dev, "send_resp_capture_done 0x%x\n",
+ buf->send_resp_capture_done);
+}
diff --git a/drivers/media/pci/intel/ipu-fw-isys.h b/drivers/media/pci/intel/ipu-fw-isys.h
new file mode 100644
index 0000000000000..0dc320474b77a
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-fw-isys.h
@@ -0,0 +1,816 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2013 - 2020 Intel Corporation */
+
+#ifndef IPU_FW_ISYS_H
+#define IPU_FW_ISYS_H
+
+#include "ipu-fw-com.h"
+
+/* Max number of Input/Output Pins */
+#define IPU_MAX_IPINS 4
+
+#define IPU_MAX_OPINS ((IPU_MAX_IPINS) + 1)
+
+#define IPU6_STREAM_ID_MAX 16
+#define IPU6_NONSECURE_STREAM_ID_MAX 12
+#define IPU6_DEV_SEND_QUEUE_SIZE (IPU6_STREAM_ID_MAX)
+#define IPU6_NOF_SRAM_BLOCKS_MAX (IPU6_STREAM_ID_MAX)
+#define IPU6_N_MAX_MSG_SEND_QUEUES (IPU6_STREAM_ID_MAX)
+#define IPU6SE_STREAM_ID_MAX 8
+#define IPU6SE_NONSECURE_STREAM_ID_MAX 4
+#define IPU6SE_DEV_SEND_QUEUE_SIZE (IPU6SE_STREAM_ID_MAX)
+#define IPU6SE_NOF_SRAM_BLOCKS_MAX (IPU6SE_STREAM_ID_MAX)
+#define IPU6SE_N_MAX_MSG_SEND_QUEUES (IPU6SE_STREAM_ID_MAX)
+
+/* Single return queue for all streams/commands type */
+#define IPU_N_MAX_MSG_RECV_QUEUES 1
+/* Single device queue for high priority commands (bypass in-order queue) */
+#define IPU_N_MAX_DEV_SEND_QUEUES 1
+/* Single dedicated send queue for proxy interface */
+#define IPU_N_MAX_PROXY_SEND_QUEUES 1
+/* Single dedicated recv queue for proxy interface */
+#define IPU_N_MAX_PROXY_RECV_QUEUES 1
+/* Send queues layout */
+#define IPU_BASE_PROXY_SEND_QUEUES 0
+#define IPU_BASE_DEV_SEND_QUEUES \
+ (IPU_BASE_PROXY_SEND_QUEUES + IPU_N_MAX_PROXY_SEND_QUEUES)
+#define IPU_BASE_MSG_SEND_QUEUES \
+ (IPU_BASE_DEV_SEND_QUEUES + IPU_N_MAX_DEV_SEND_QUEUES)
+/* Recv queues layout */
+#define IPU_BASE_PROXY_RECV_QUEUES 0
+#define IPU_BASE_MSG_RECV_QUEUES \
+ (IPU_BASE_PROXY_RECV_QUEUES + IPU_N_MAX_PROXY_RECV_QUEUES)
+#define IPU_N_MAX_RECV_QUEUES \
+ (IPU_BASE_MSG_RECV_QUEUES + IPU_N_MAX_MSG_RECV_QUEUES)
+
+#define IPU6_N_MAX_SEND_QUEUES \
+ (IPU_BASE_MSG_SEND_QUEUES + IPU6_N_MAX_MSG_SEND_QUEUES)
+#define IPU6SE_N_MAX_SEND_QUEUES \
+ (IPU_BASE_MSG_SEND_QUEUES + IPU6SE_N_MAX_MSG_SEND_QUEUES)
+
+/* Max number of supported input pins routed in ISL */
+#define IPU_MAX_IPINS_IN_ISL 2
+
+/* Max number of planes for frame formats supported by the FW */
+#define IPU_PIN_PLANES_MAX 4
+
+/**
+ * enum ipu_fw_isys_resp_type
+ */
+enum ipu_fw_isys_resp_type {
+ IPU_FW_ISYS_RESP_TYPE_STREAM_OPEN_DONE = 0,
+ IPU_FW_ISYS_RESP_TYPE_STREAM_START_ACK,
+ IPU_FW_ISYS_RESP_TYPE_STREAM_START_AND_CAPTURE_ACK,
+ IPU_FW_ISYS_RESP_TYPE_STREAM_CAPTURE_ACK,
+ IPU_FW_ISYS_RESP_TYPE_STREAM_STOP_ACK,
+ IPU_FW_ISYS_RESP_TYPE_STREAM_FLUSH_ACK,
+ IPU_FW_ISYS_RESP_TYPE_STREAM_CLOSE_ACK,
+ IPU_FW_ISYS_RESP_TYPE_PIN_DATA_READY,
+ IPU_FW_ISYS_RESP_TYPE_PIN_DATA_WATERMARK,
+ IPU_FW_ISYS_RESP_TYPE_FRAME_SOF,
+ IPU_FW_ISYS_RESP_TYPE_FRAME_EOF,
+ IPU_FW_ISYS_RESP_TYPE_STREAM_START_AND_CAPTURE_DONE,
+ IPU_FW_ISYS_RESP_TYPE_STREAM_CAPTURE_DONE,
+ IPU_FW_ISYS_RESP_TYPE_PIN_DATA_SKIPPED,
+ IPU_FW_ISYS_RESP_TYPE_STREAM_CAPTURE_SKIPPED,
+ IPU_FW_ISYS_RESP_TYPE_FRAME_SOF_DISCARDED,
+ IPU_FW_ISYS_RESP_TYPE_FRAME_EOF_DISCARDED,
+ IPU_FW_ISYS_RESP_TYPE_STATS_DATA_READY,
+ N_IPU_FW_ISYS_RESP_TYPE
+};
+
+/**
+ * enum ipu_fw_isys_send_type
+ */
+enum ipu_fw_isys_send_type {
+ IPU_FW_ISYS_SEND_TYPE_STREAM_OPEN = 0,
+ IPU_FW_ISYS_SEND_TYPE_STREAM_START,
+ IPU_FW_ISYS_SEND_TYPE_STREAM_START_AND_CAPTURE,
+ IPU_FW_ISYS_SEND_TYPE_STREAM_CAPTURE,
+ IPU_FW_ISYS_SEND_TYPE_STREAM_STOP,
+ IPU_FW_ISYS_SEND_TYPE_STREAM_FLUSH,
+ IPU_FW_ISYS_SEND_TYPE_STREAM_CLOSE,
+ N_IPU_FW_ISYS_SEND_TYPE
+};
+
+/**
+ * enum ipu_fw_isys_queue_type
+ */
+enum ipu_fw_isys_queue_type {
+ IPU_FW_ISYS_QUEUE_TYPE_PROXY = 0,
+ IPU_FW_ISYS_QUEUE_TYPE_DEV,
+ IPU_FW_ISYS_QUEUE_TYPE_MSG,
+ N_IPU_FW_ISYS_QUEUE_TYPE
+};
+
+/**
+ * enum ipu_fw_isys_stream_source: Specifies a source for a stream
+ */
+enum ipu_fw_isys_stream_source {
+ IPU_FW_ISYS_STREAM_SRC_PORT_0 = 0,
+ IPU_FW_ISYS_STREAM_SRC_PORT_1,
+ IPU_FW_ISYS_STREAM_SRC_PORT_2,
+ IPU_FW_ISYS_STREAM_SRC_PORT_3,
+ IPU_FW_ISYS_STREAM_SRC_PORT_4,
+ IPU_FW_ISYS_STREAM_SRC_PORT_5,
+ IPU_FW_ISYS_STREAM_SRC_PORT_6,
+ IPU_FW_ISYS_STREAM_SRC_PORT_7,
+ IPU_FW_ISYS_STREAM_SRC_PORT_8,
+ IPU_FW_ISYS_STREAM_SRC_PORT_9,
+ IPU_FW_ISYS_STREAM_SRC_PORT_10,
+ IPU_FW_ISYS_STREAM_SRC_PORT_11,
+ IPU_FW_ISYS_STREAM_SRC_PORT_12,
+ IPU_FW_ISYS_STREAM_SRC_PORT_13,
+ IPU_FW_ISYS_STREAM_SRC_PORT_14,
+ IPU_FW_ISYS_STREAM_SRC_PORT_15,
+ IPU_FW_ISYS_STREAM_SRC_MIPIGEN_0,
+ IPU_FW_ISYS_STREAM_SRC_MIPIGEN_1,
+ IPU_FW_ISYS_STREAM_SRC_MIPIGEN_2,
+ IPU_FW_ISYS_STREAM_SRC_MIPIGEN_3,
+ IPU_FW_ISYS_STREAM_SRC_MIPIGEN_4,
+ IPU_FW_ISYS_STREAM_SRC_MIPIGEN_5,
+ IPU_FW_ISYS_STREAM_SRC_MIPIGEN_6,
+ IPU_FW_ISYS_STREAM_SRC_MIPIGEN_7,
+ IPU_FW_ISYS_STREAM_SRC_MIPIGEN_8,
+ IPU_FW_ISYS_STREAM_SRC_MIPIGEN_9,
+ N_IPU_FW_ISYS_STREAM_SRC
+};
+
+enum ipu_fw_isys_sensor_type {
+ /* non-snoopable to PSYS */
+ IPU_FW_ISYS_VC1_SENSOR_DATA = 0,
+ /* non-snoopable for PDAF */
+ IPU_FW_ISYS_VC1_SENSOR_PDAF,
+ /* snoopable to CPU */
+ IPU_FW_ISYS_VC0_SENSOR_METADATA,
+ /* snoopable to CPU */
+ IPU_FW_ISYS_VC0_SENSOR_DATA,
+ N_IPU_FW_ISYS_SENSOR_TYPE
+};
+
+enum ipu6se_fw_isys_sensor_info {
+ /* VC1 */
+ IPU6SE_FW_ISYS_SENSOR_DATA_1 = 1,
+ IPU6SE_FW_ISYS_SENSOR_DATA_2 = 2,
+ IPU6SE_FW_ISYS_SENSOR_DATA_3 = 3,
+ IPU6SE_FW_ISYS_SENSOR_PDAF_1 = 4,
+ IPU6SE_FW_ISYS_SENSOR_PDAF_2 = 4,
+ /* VC0 */
+ IPU6SE_FW_ISYS_SENSOR_METADATA = 5,
+ IPU6SE_FW_ISYS_SENSOR_DATA_4 = 6,
+ IPU6SE_FW_ISYS_SENSOR_DATA_5 = 7,
+ IPU6SE_FW_ISYS_SENSOR_DATA_6 = 8,
+ IPU6SE_FW_ISYS_SENSOR_DATA_7 = 9,
+ IPU6SE_FW_ISYS_SENSOR_DATA_8 = 10,
+ IPU6SE_FW_ISYS_SENSOR_DATA_9 = 11,
+ N_IPU6SE_FW_ISYS_SENSOR_INFO,
+ IPU6SE_FW_ISYS_VC1_SENSOR_DATA_START = IPU6SE_FW_ISYS_SENSOR_DATA_1,
+ IPU6SE_FW_ISYS_VC1_SENSOR_DATA_END = IPU6SE_FW_ISYS_SENSOR_DATA_3,
+ IPU6SE_FW_ISYS_VC0_SENSOR_DATA_START = IPU6SE_FW_ISYS_SENSOR_DATA_4,
+ IPU6SE_FW_ISYS_VC0_SENSOR_DATA_END = IPU6SE_FW_ISYS_SENSOR_DATA_9,
+ IPU6SE_FW_ISYS_VC1_SENSOR_PDAF_START = IPU6SE_FW_ISYS_SENSOR_PDAF_1,
+ IPU6SE_FW_ISYS_VC1_SENSOR_PDAF_END = IPU6SE_FW_ISYS_SENSOR_PDAF_2,
+};
+
+enum ipu6_fw_isys_sensor_info {
+ /* VC1 */
+ IPU6_FW_ISYS_SENSOR_DATA_1 = 1,
+ IPU6_FW_ISYS_SENSOR_DATA_2 = 2,
+ IPU6_FW_ISYS_SENSOR_DATA_3 = 3,
+ IPU6_FW_ISYS_SENSOR_DATA_4 = 4,
+ IPU6_FW_ISYS_SENSOR_DATA_5 = 5,
+ IPU6_FW_ISYS_SENSOR_DATA_6 = 6,
+ IPU6_FW_ISYS_SENSOR_DATA_7 = 7,
+ IPU6_FW_ISYS_SENSOR_DATA_8 = 8,
+ IPU6_FW_ISYS_SENSOR_DATA_9 = 9,
+ IPU6_FW_ISYS_SENSOR_DATA_10 = 10,
+ IPU6_FW_ISYS_SENSOR_PDAF_1 = 11,
+ IPU6_FW_ISYS_SENSOR_PDAF_2 = 12,
+ /* VC0 */
+ IPU6_FW_ISYS_SENSOR_METADATA = 13,
+ IPU6_FW_ISYS_SENSOR_DATA_11 = 14,
+ IPU6_FW_ISYS_SENSOR_DATA_12 = 15,
+ IPU6_FW_ISYS_SENSOR_DATA_13 = 16,
+ IPU6_FW_ISYS_SENSOR_DATA_14 = 17,
+ IPU6_FW_ISYS_SENSOR_DATA_15 = 18,
+ IPU6_FW_ISYS_SENSOR_DATA_16 = 19,
+ N_IPU6_FW_ISYS_SENSOR_INFO,
+ IPU6_FW_ISYS_VC1_SENSOR_DATA_START = IPU6_FW_ISYS_SENSOR_DATA_1,
+ IPU6_FW_ISYS_VC1_SENSOR_DATA_END = IPU6_FW_ISYS_SENSOR_DATA_10,
+ IPU6_FW_ISYS_VC0_SENSOR_DATA_START = IPU6_FW_ISYS_SENSOR_DATA_11,
+ IPU6_FW_ISYS_VC0_SENSOR_DATA_END = IPU6_FW_ISYS_SENSOR_DATA_16,
+ IPU6_FW_ISYS_VC1_SENSOR_PDAF_START = IPU6_FW_ISYS_SENSOR_PDAF_1,
+ IPU6_FW_ISYS_VC1_SENSOR_PDAF_END = IPU6_FW_ISYS_SENSOR_PDAF_2,
+};
+
+#define IPU_FW_ISYS_STREAM_SRC_CSI2_PORT0 IPU_FW_ISYS_STREAM_SRC_PORT_0
+#define IPU_FW_ISYS_STREAM_SRC_CSI2_PORT1 IPU_FW_ISYS_STREAM_SRC_PORT_1
+#define IPU_FW_ISYS_STREAM_SRC_CSI2_PORT2 IPU_FW_ISYS_STREAM_SRC_PORT_2
+#define IPU_FW_ISYS_STREAM_SRC_CSI2_PORT3 IPU_FW_ISYS_STREAM_SRC_PORT_3
+
+#define IPU_FW_ISYS_STREAM_SRC_CSI2_3PH_PORTA IPU_FW_ISYS_STREAM_SRC_PORT_4
+#define IPU_FW_ISYS_STREAM_SRC_CSI2_3PH_PORTB IPU_FW_ISYS_STREAM_SRC_PORT_5
+#define IPU_FW_ISYS_STREAM_SRC_CSI2_3PH_CPHY_PORT0 IPU_FW_ISYS_STREAM_SRC_PORT_6
+#define IPU_FW_ISYS_STREAM_SRC_CSI2_3PH_CPHY_PORT1 IPU_FW_ISYS_STREAM_SRC_PORT_7
+#define IPU_FW_ISYS_STREAM_SRC_CSI2_3PH_CPHY_PORT2 IPU_FW_ISYS_STREAM_SRC_PORT_8
+#define IPU_FW_ISYS_STREAM_SRC_CSI2_3PH_CPHY_PORT3 IPU_FW_ISYS_STREAM_SRC_PORT_9
+
+#define IPU_FW_ISYS_STREAM_SRC_MIPIGEN_PORT0 IPU_FW_ISYS_STREAM_SRC_MIPIGEN_0
+#define IPU_FW_ISYS_STREAM_SRC_MIPIGEN_PORT1 IPU_FW_ISYS_STREAM_SRC_MIPIGEN_1
+
+/**
+ * enum ipu_fw_isys_mipi_vc: MIPI csi2 spec
+ * supports up to 4 virtual per physical channel
+ */
+enum ipu_fw_isys_mipi_vc {
+ IPU_FW_ISYS_MIPI_VC_0 = 0,
+ IPU_FW_ISYS_MIPI_VC_1,
+ IPU_FW_ISYS_MIPI_VC_2,
+ IPU_FW_ISYS_MIPI_VC_3,
+ N_IPU_FW_ISYS_MIPI_VC
+};
+
+/**
+ * Supported Pixel Frame formats. Expandable if needed
+ */
+enum ipu_fw_isys_frame_format_type {
+ IPU_FW_ISYS_FRAME_FORMAT_NV11 = 0, /* 12 bit YUV 411, Y, UV plane */
+ IPU_FW_ISYS_FRAME_FORMAT_NV12, /* 12 bit YUV 420, Y, UV plane */
+ IPU_FW_ISYS_FRAME_FORMAT_NV12_16, /* 16 bit YUV 420, Y, UV plane */
+ IPU_FW_ISYS_FRAME_FORMAT_NV12_TILEY, /* 12 bit YUV 420,
+ * Intel proprietary tiled format,
+ * TileY
+ */
+ IPU_FW_ISYS_FRAME_FORMAT_NV16, /* 16 bit YUV 422, Y, UV plane */
+ IPU_FW_ISYS_FRAME_FORMAT_NV21, /* 12 bit YUV 420, Y, VU plane */
+ IPU_FW_ISYS_FRAME_FORMAT_NV61, /* 16 bit YUV 422, Y, VU plane */
+ IPU_FW_ISYS_FRAME_FORMAT_YV12, /* 12 bit YUV 420, Y, V, U plane */
+ IPU_FW_ISYS_FRAME_FORMAT_YV16, /* 16 bit YUV 422, Y, V, U plane */
+ IPU_FW_ISYS_FRAME_FORMAT_YUV420, /* 12 bit YUV 420, Y, U, V plane */
+ IPU_FW_ISYS_FRAME_FORMAT_YUV420_10, /* yuv420, 10 bits per subpixel */
+ IPU_FW_ISYS_FRAME_FORMAT_YUV420_12, /* yuv420, 12 bits per subpixel */
+ IPU_FW_ISYS_FRAME_FORMAT_YUV420_14, /* yuv420, 14 bits per subpixel */
+ IPU_FW_ISYS_FRAME_FORMAT_YUV420_16, /* yuv420, 16 bits per subpixel */
+ IPU_FW_ISYS_FRAME_FORMAT_YUV422, /* 16 bit YUV 422, Y, U, V plane */
+ IPU_FW_ISYS_FRAME_FORMAT_YUV422_16, /* yuv422, 16 bits per subpixel */
+ IPU_FW_ISYS_FRAME_FORMAT_UYVY, /* 16 bit YUV 422, UYVY interleaved */
+ IPU_FW_ISYS_FRAME_FORMAT_YUYV, /* 16 bit YUV 422, YUYV interleaved */
+ IPU_FW_ISYS_FRAME_FORMAT_YUV444, /* 24 bit YUV 444, Y, U, V plane */
+ IPU_FW_ISYS_FRAME_FORMAT_YUV_LINE, /* Internal format, 2 y lines
+ * followed by a uvinterleaved line
+ */
+ IPU_FW_ISYS_FRAME_FORMAT_RAW8, /* RAW8, 1 plane */
+ IPU_FW_ISYS_FRAME_FORMAT_RAW10, /* RAW10, 1 plane */
+ IPU_FW_ISYS_FRAME_FORMAT_RAW12, /* RAW12, 1 plane */
+ IPU_FW_ISYS_FRAME_FORMAT_RAW14, /* RAW14, 1 plane */
+ IPU_FW_ISYS_FRAME_FORMAT_RAW16, /* RAW16, 1 plane */
+ IPU_FW_ISYS_FRAME_FORMAT_RGB565, /* 16 bit RGB, 1 plane. Each 3 sub
+ * pixels are packed into one 16 bit
+ * value, 5 bits for R, 6 bits
+ * for G and 5 bits for B.
+ */
+
+ IPU_FW_ISYS_FRAME_FORMAT_PLANAR_RGB888, /* 24 bit RGB, 3 planes */
+ IPU_FW_ISYS_FRAME_FORMAT_RGBA888, /* 32 bit RGBA, 1 plane,
+ * A=Alpha (alpha is unused)
+ */
+ IPU_FW_ISYS_FRAME_FORMAT_QPLANE6, /* Internal, for advanced ISP */
+ IPU_FW_ISYS_FRAME_FORMAT_BINARY_8, /* byte stream, used for jpeg. */
+ N_IPU_FW_ISYS_FRAME_FORMAT
+};
+
+/* Temporary for driver compatibility */
+#define IPU_FW_ISYS_FRAME_FORMAT_RAW (IPU_FW_ISYS_FRAME_FORMAT_RAW16)
+
+enum ipu_fw_isys_mipi_compression_type {
+ IPU_FW_ISYS_MIPI_COMPRESSION_TYPE_NO_COMPRESSION = 0,
+ IPU_FW_ISYS_MIPI_COMPRESSION_TYPE_10_8_10_TYPE1,
+ IPU_FW_ISYS_MIPI_COMPRESSION_TYPE_10_8_10_TYPE2,
+ IPU_FW_ISYS_MIPI_COMPRESSION_TYPE_10_7_10_TYPE1,
+ IPU_FW_ISYS_MIPI_COMPRESSION_TYPE_10_7_10_TYPE2,
+ IPU_FW_ISYS_MIPI_COMPRESSION_TYPE_10_6_10_TYPE1,
+ IPU_FW_ISYS_MIPI_COMPRESSION_TYPE_10_6_10_TYPE2,
+ IPU_FW_ISYS_MIPI_COMPRESSION_TYPE_12_8_12_TYPE1,
+ IPU_FW_ISYS_MIPI_COMPRESSION_TYPE_12_8_12_TYPE2,
+ IPU_FW_ISYS_MIPI_COMPRESSION_TYPE_12_7_12_TYPE1,
+ IPU_FW_ISYS_MIPI_COMPRESSION_TYPE_12_7_12_TYPE2,
+ IPU_FW_ISYS_MIPI_COMPRESSION_TYPE_12_6_12_TYPE1,
+ IPU_FW_ISYS_MIPI_COMPRESSION_TYPE_12_6_12_TYPE2,
+ IPU_FW_ISYS_MIPI_COMPRESSION_TYPE_12_10_12_TYPE1,
+ IPU_FW_ISYS_MIPI_COMPRESSION_TYPE_12_10_12_TYPE2,
+ N_IPU_FW_ISYS_MIPI_COMPRESSION_TYPE,
+};
+
+/**
+ * Supported MIPI data type. Keep in sync array in ipu_fw_isys_private.c
+ */
+enum ipu_fw_isys_mipi_data_type {
+ /** SYNCHRONIZATION SHORT PACKET DATA TYPES */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_FRAME_START_CODE = 0x00,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_FRAME_END_CODE = 0x01,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_LINE_START_CODE = 0x02, /* Optional */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_LINE_END_CODE = 0x03, /* Optional */
+ /** Reserved 0x04-0x07 */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x04 = 0x04,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x05 = 0x05,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x06 = 0x06,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x07 = 0x07,
+ /** GENERIC SHORT PACKET DATA TYPES */
+ /** They are used to keep the timing information for
+ * the opening/closing of shutters,
+ * triggering of flashes and etc.
+ */
+ /* Generic Short Packet Codes 1 - 8 */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_GENERIC_SHORT1 = 0x08,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_GENERIC_SHORT2 = 0x09,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_GENERIC_SHORT3 = 0x0A,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_GENERIC_SHORT4 = 0x0B,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_GENERIC_SHORT5 = 0x0C,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_GENERIC_SHORT6 = 0x0D,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_GENERIC_SHORT7 = 0x0E,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_GENERIC_SHORT8 = 0x0F,
+ /** GENERIC LONG PACKET DATA TYPES */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_NULL = 0x10,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_BLANKING_DATA = 0x11,
+ /* Embedded 8-bit non Image Data */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_EMBEDDED = 0x12,
+ /** Reserved 0x13-0x17 */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x13 = 0x13,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x14 = 0x14,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x15 = 0x15,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x16 = 0x16,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x17 = 0x17,
+ /** YUV DATA TYPES */
+ /* 8 bits per subpixel */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_YUV420_8 = 0x18,
+ /* 10 bits per subpixel */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_YUV420_10 = 0x19,
+ /* 8 bits per subpixel */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_YUV420_8_LEGACY = 0x1A,
+ /** Reserved 0x1B */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x1B = 0x1B,
+ /* YUV420 8-bit Chroma Shifted Pixel Sampling) */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_YUV420_8_SHIFT = 0x1C,
+ /* YUV420 8-bit (Chroma Shifted Pixel Sampling) */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_YUV420_10_SHIFT = 0x1D,
+ /* UYVY..UVYV, 8 bits per subpixel */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_YUV422_8 = 0x1E,
+ /* UYVY..UVYV, 10 bits per subpixel */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_YUV422_10 = 0x1F,
+ /** RGB DATA TYPES */
+ /* BGR..BGR, 4 bits per subpixel */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RGB_444 = 0x20,
+ /* BGR..BGR, 5 bits per subpixel */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RGB_555 = 0x21,
+ /* BGR..BGR, 5 bits B and R, 6 bits G */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RGB_565 = 0x22,
+ /* BGR..BGR, 6 bits per subpixel */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RGB_666 = 0x23,
+ /* BGR..BGR, 8 bits per subpixel */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RGB_888 = 0x24,
+ /** Reserved 0x25-0x27 */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x25 = 0x25,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x26 = 0x26,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x27 = 0x27,
+ /** RAW DATA TYPES */
+ /* RAW data, 6 - 14 bits per pixel */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RAW_6 = 0x28,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RAW_7 = 0x29,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RAW_8 = 0x2A,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RAW_10 = 0x2B,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RAW_12 = 0x2C,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RAW_14 = 0x2D,
+ /** Reserved 0x2E-2F are used with assigned meaning */
+ /* RAW data, 16 bits per pixel, not specified in CSI-MIPI standard */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RAW_16 = 0x2E,
+ /* Binary byte stream, which is target at JPEG,
+ * not specified in CSI-MIPI standard
+ */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_BINARY_8 = 0x2F,
+
+ /** USER DEFINED 8-BIT DATA TYPES */
+ /** For example, the data transmitter (e.g. the SoC sensor)
+ * can keep the JPEG data as
+ * the User Defined Data Type 4 and the MPEG data as the
+ * User Defined Data Type 7.
+ */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_USER_DEF1 = 0x30,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_USER_DEF2 = 0x31,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_USER_DEF3 = 0x32,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_USER_DEF4 = 0x33,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_USER_DEF5 = 0x34,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_USER_DEF6 = 0x35,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_USER_DEF7 = 0x36,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_USER_DEF8 = 0x37,
+ /** Reserved 0x38-0x3F */
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x38 = 0x38,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x39 = 0x39,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x3A = 0x3A,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x3B = 0x3B,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x3C = 0x3C,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x3D = 0x3D,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x3E = 0x3E,
+ IPU_FW_ISYS_MIPI_DATA_TYPE_RESERVED_0x3F = 0x3F,
+
+ /* Keep always last and max value */
+ N_IPU_FW_ISYS_MIPI_DATA_TYPE = 0x40
+};
+
+/** enum ipu_fw_isys_pin_type: output pin buffer types.
+ * Buffers can be queued and de-queued to hand them over between IA and ISYS
+ */
+enum ipu_fw_isys_pin_type {
+ /* Captured as MIPI packets */
+ IPU_FW_ISYS_PIN_TYPE_MIPI = 0,
+ /* Captured through the RAW path */
+ IPU_FW_ISYS_PIN_TYPE_RAW_NS = 1,
+ /* Captured through the SoC path */
+ IPU_FW_ISYS_PIN_TYPE_RAW_SOC = 3,
+ /* Reserved for future use, maybe short packets */
+ IPU_FW_ISYS_PIN_TYPE_METADATA_0 = 4,
+ /* Reserved for future use */
+ IPU_FW_ISYS_PIN_TYPE_METADATA_1 = 5,
+ /* Keep always last and max value */
+ N_IPU_FW_ISYS_PIN_TYPE
+};
+
+/**
+ * enum ipu_fw_isys_mipi_store_mode. Describes if long MIPI packets reach
+ * MIPI SRAM with the long packet header or
+ * if not, then only option is to capture it with pin type MIPI.
+ */
+enum ipu_fw_isys_mipi_store_mode {
+ IPU_FW_ISYS_MIPI_STORE_MODE_NORMAL = 0,
+ IPU_FW_ISYS_MIPI_STORE_MODE_DISCARD_LONG_HEADER,
+ N_IPU_FW_ISYS_MIPI_STORE_MODE
+};
+
+/**
+ * ISYS capture mode and sensor enums
+ * Used for Tobii sensor, if doubt, use default value 0
+ */
+
+enum ipu_fw_isys_capture_mode {
+ IPU_FW_ISYS_CAPTURE_MODE_REGULAR = 0,
+ IPU_FW_ISYS_CAPTURE_MODE_BURST,
+ N_IPU_FW_ISYS_CAPTURE_MODE,
+};
+
+enum ipu_fw_isys_sensor_mode {
+ IPU_FW_ISYS_SENSOR_MODE_NORMAL = 0,
+ IPU_FW_ISYS_SENSOR_MODE_TOBII,
+ N_IPU_FW_ISYS_SENSOR_MODE,
+};
+
+/**
+ * enum ipu_fw_isys_error. Describes the error type detected by the FW
+ */
+enum ipu_fw_isys_error {
+ IPU_FW_ISYS_ERROR_NONE = 0, /* No details */
+ IPU_FW_ISYS_ERROR_FW_INTERNAL_CONSISTENCY, /* enum */
+ IPU_FW_ISYS_ERROR_HW_CONSISTENCY, /* enum */
+ IPU_FW_ISYS_ERROR_DRIVER_INVALID_COMMAND_SEQUENCE, /* enum */
+ IPU_FW_ISYS_ERROR_DRIVER_INVALID_DEVICE_CONFIGURATION, /* enum */
+ IPU_FW_ISYS_ERROR_DRIVER_INVALID_STREAM_CONFIGURATION, /* enum */
+ IPU_FW_ISYS_ERROR_DRIVER_INVALID_FRAME_CONFIGURATION, /* enum */
+ IPU_FW_ISYS_ERROR_INSUFFICIENT_RESOURCES, /* enum */
+ IPU_FW_ISYS_ERROR_HW_REPORTED_STR2MMIO, /* HW code */
+ IPU_FW_ISYS_ERROR_HW_REPORTED_SIG2CIO, /* HW code */
+ IPU_FW_ISYS_ERROR_SENSOR_FW_SYNC, /* enum */
+ IPU_FW_ISYS_ERROR_STREAM_IN_SUSPENSION, /* FW code */
+ IPU_FW_ISYS_ERROR_RESPONSE_QUEUE_FULL, /* FW code */
+ N_IPU_FW_ISYS_ERROR
+};
+
+/**
+ * enum ipu_fw_proxy_error. Describes the error type for
+ * the proxy detected by the FW
+ */
+enum ipu_fw_proxy_error {
+ IPU_FW_PROXY_ERROR_NONE = 0,
+ IPU_FW_PROXY_ERROR_INVALID_WRITE_REGION,
+ IPU_FW_PROXY_ERROR_INVALID_WRITE_OFFSET,
+ N_IPU_FW_PROXY_ERROR
+};
+
+struct ipu_isys;
+
+struct ipu6_fw_isys_buffer_partition_abi {
+ u32 num_gda_pages[IPU6_STREAM_ID_MAX];
+};
+
+struct ipu6_fw_isys_fw_config {
+ struct ipu6_fw_isys_buffer_partition_abi buffer_partition;
+ u32 num_send_queues[N_IPU_FW_ISYS_QUEUE_TYPE];
+ u32 num_recv_queues[N_IPU_FW_ISYS_QUEUE_TYPE];
+};
+
+/**
+ * struct ipu_fw_isys_resolution_abi: Generic resolution structure.
+ * @Width
+ * @Height
+ */
+struct ipu_fw_isys_resolution_abi {
+ u32 width;
+ u32 height;
+};
+
+/**
+ * struct ipu_fw_isys_output_pin_payload_abi
+ * @out_buf_id: Points to output pin buffer - buffer identifier
+ * @addr: Points to output pin buffer - CSS Virtual Address
+ * @compress: Request frame compression (1), or not (0)
+ */
+struct ipu_fw_isys_output_pin_payload_abi {
+ u64 out_buf_id;
+ u32 addr;
+ u32 compress;
+};
+
+/**
+ * struct ipu_fw_isys_output_pin_info_abi
+ * @output_res: output pin resolution
+ * @stride: output stride in Bytes (not valid for statistics)
+ * @watermark_in_lines: pin watermark level in lines
+ * @payload_buf_size: minimum size in Bytes of all buffers that will be
+ * supplied for capture on this pin
+ * @send_irq: assert if pin event should trigger irq
+ * @pt: pin type -real format "enum ipu_fw_isys_pin_type"
+ * @ft: frame format type -real format "enum ipu_fw_isys_frame_format_type"
+ * @input_pin_id: related input pin id
+ * @reserve_compression: reserve compression resources for pin
+ */
+struct ipu_fw_isys_output_pin_info_abi {
+ struct ipu_fw_isys_resolution_abi output_res;
+ u32 stride;
+ u32 watermark_in_lines;
+ u32 payload_buf_size;
+ u32 ts_offsets[IPU_PIN_PLANES_MAX];
+ u32 s2m_pixel_soc_pixel_remapping;
+ u32 csi_be_soc_pixel_remapping;
+ u8 send_irq;
+ u8 input_pin_id;
+ u8 pt;
+ u8 ft;
+ u8 reserved;
+ u8 reserve_compression;
+ u8 snoopable;
+ u8 error_handling_enable;
+ u32 sensor_type;
+};
+
+/**
+ * struct ipu_fw_isys_param_pin_abi
+ * @param_buf_id: Points to param port buffer - buffer identifier
+ * @addr: Points to param pin buffer - CSS Virtual Address
+ */
+struct ipu_fw_isys_param_pin_abi {
+ u64 param_buf_id;
+ u32 addr;
+};
+
+/**
+ * struct ipu_fw_isys_input_pin_info_abi
+ * @input_res: input resolution
+ * @dt: mipi data type ((enum ipu_fw_isys_mipi_data_type)
+ * @mipi_store_mode: defines if legacy long packet header will be stored or
+ * discarded if discarded, output pin type for this
+ * input pin can only be MIPI
+ * (enum ipu_fw_isys_mipi_store_mode)
+ * @bits_per_pix: native bits per pixel
+ * @mapped_dt: actual data type from sensor
+ * @mipi_decompression: defines which compression will be in mipi backend
+
+ * @crop_first_and_last_lines Control whether to crop the
+ * first and last line of the
+ * input image. Crop done by HW
+ * device.
+ * @capture_mode: mode of capture, regular or burst, default value is regular
+ */
+struct ipu_fw_isys_input_pin_info_abi {
+ struct ipu_fw_isys_resolution_abi input_res;
+ u8 dt;
+ u8 mipi_store_mode;
+ u8 bits_per_pix;
+ u8 mapped_dt;
+ u8 mipi_decompression;
+ u8 crop_first_and_last_lines;
+ u8 capture_mode;
+};
+
+/**
+ * struct ipu_fw_isys_cropping_abi - cropping coordinates
+ */
+struct ipu_fw_isys_cropping_abi {
+ s32 top_offset;
+ s32 left_offset;
+ s32 bottom_offset;
+ s32 right_offset;
+};
+
+/**
+ * struct ipu_fw_isys_stream_cfg_data_abi
+ * ISYS stream configuration data structure
+ * @crop: defines cropping resolution for the
+ * maximum number of input pins which can be cropped,
+ * it is directly mapped to the HW devices
+ * @input_pins: input pin descriptors
+ * @output_pins: output pin descriptors
+ * @compfmt: de-compression setting for User Defined Data
+ * @nof_input_pins: number of input pins
+ * @nof_output_pins: number of output pins
+ * @send_irq_sof_discarded: send irq on discarded frame sof response
+ * - if '1' it will override the send_resp_sof_discarded
+ * and send the response
+ * - if '0' the send_resp_sof_discarded will determine
+ * whether to send the response
+ * @send_irq_eof_discarded: send irq on discarded frame eof response
+ * - if '1' it will override the send_resp_eof_discarded
+ * and send the response
+ * - if '0' the send_resp_eof_discarded will determine
+ * whether to send the response
+ * @send_resp_sof_discarded: send response for discarded frame sof detected,
+ * used only when send_irq_sof_discarded is '0'
+ * @send_resp_eof_discarded: send response for discarded frame eof detected,
+ * used only when send_irq_eof_discarded is '0'
+ * @src: Stream source index e.g. MIPI_generator_0, CSI2-rx_1
+ * @vc: MIPI Virtual Channel (up to 4 virtual per physical channel)
+ * @isl_use: indicates whether stream requires ISL and how
+ * @sensor_type: type of connected sensor, tobii or others, default is 0
+ */
+struct ipu_fw_isys_stream_cfg_data_abi {
+ struct ipu_fw_isys_cropping_abi crop;
+ struct ipu_fw_isys_input_pin_info_abi input_pins[IPU_MAX_IPINS];
+ struct ipu_fw_isys_output_pin_info_abi output_pins[IPU_MAX_OPINS];
+ u32 compfmt;
+ u8 nof_input_pins;
+ u8 nof_output_pins;
+ u8 send_irq_sof_discarded;
+ u8 send_irq_eof_discarded;
+ u8 send_resp_sof_discarded;
+ u8 send_resp_eof_discarded;
+ u8 src;
+ u8 vc;
+ u8 isl_use;
+ u8 sensor_type;
+};
+
+/**
+ * struct ipu_fw_isys_frame_buff_set - frame buffer set
+ * @output_pins: output pin addresses
+ * @send_irq_sof: send irq on frame sof response
+ * - if '1' it will override the send_resp_sof and
+ * send the response
+ * - if '0' the send_resp_sof will determine whether to
+ * send the response
+ * @send_irq_eof: send irq on frame eof response
+ * - if '1' it will override the send_resp_eof and
+ * send the response
+ * - if '0' the send_resp_eof will determine whether to
+ * send the response
+ * @send_resp_sof: send response for frame sof detected,
+ * used only when send_irq_sof is '0'
+ * @send_resp_eof: send response for frame eof detected,
+ * used only when send_irq_eof is '0'
+ * @send_resp_capture_ack: send response for capture ack event
+ * @send_resp_capture_done: send response for capture done event
+ */
+struct ipu_fw_isys_frame_buff_set_abi {
+ struct ipu_fw_isys_output_pin_payload_abi output_pins[IPU_MAX_OPINS];
+ u8 send_irq_sof;
+ u8 send_irq_eof;
+ u8 send_irq_capture_ack;
+ u8 send_irq_capture_done;
+ u8 send_resp_sof;
+ u8 send_resp_eof;
+ u8 send_resp_capture_ack;
+ u8 send_resp_capture_done;
+ u8 reserved;
+};
+
+/**
+ * struct ipu_fw_isys_error_info_abi
+ * @error: error code if something went wrong
+ * @error_details: depending on error code, it may contain additional error info
+ */
+struct ipu_fw_isys_error_info_abi {
+ enum ipu_fw_isys_error error;
+ u32 error_details;
+};
+
+/**
+ * struct ipu_fw_isys_resp_info_comm
+ * @pin: this var is only valid for pin event related responses,
+ * contains pin addresses
+ * @error_info: error information from the FW
+ * @timestamp: Time information for event if available
+ * @stream_handle: stream id the response corresponds to
+ * @type: response type (enum ipu_fw_isys_resp_type)
+ * @pin_id: pin id that the pin payload corresponds to
+ */
+struct ipu_fw_isys_resp_info_abi {
+ u64 buf_id;
+ struct ipu_fw_isys_output_pin_payload_abi pin;
+ struct ipu_fw_isys_error_info_abi error_info;
+ u32 timestamp[2];
+ u8 stream_handle;
+ u8 type;
+ u8 pin_id;
+ u16 reserved;
+};
+
+/**
+ * struct ipu_fw_isys_proxy_error_info_comm
+ * @proxy_error: error code if something went wrong
+ * @proxy_error_details: depending on error code, it may contain additional
+ * error info
+ */
+struct ipu_fw_isys_proxy_error_info_abi {
+ enum ipu_fw_proxy_error error;
+ u32 error_details;
+};
+
+struct ipu_fw_isys_proxy_resp_info_abi {
+ u32 request_id;
+ struct ipu_fw_isys_proxy_error_info_abi error_info;
+};
+
+/**
+ * struct ipu_fw_proxy_write_queue_token
+ * @request_id: update id for the specific proxy write request
+ * @region_index: Region id for the proxy write request
+ * @offset: Offset of the write request according to the base address
+ * of the region
+ * @value: Value that is requested to be written with the proxy write request
+ */
+struct ipu_fw_proxy_write_queue_token {
+ u32 request_id;
+ u32 region_index;
+ u32 offset;
+ u32 value;
+};
+
+/* From here on type defines not coming from the ISYSAPI interface */
+
+/**
+ * struct ipu_fw_resp_queue_token
+ */
+struct ipu_fw_resp_queue_token {
+ struct ipu_fw_isys_resp_info_abi resp_info;
+};
+
+/**
+ * struct ipu_fw_send_queue_token
+ */
+struct ipu_fw_send_queue_token {
+ u64 buf_handle;
+ u32 payload;
+ u16 send_type;
+ u16 stream_id;
+};
+
+/**
+ * struct ipu_fw_proxy_resp_queue_token
+ */
+struct ipu_fw_proxy_resp_queue_token {
+ struct ipu_fw_isys_proxy_resp_info_abi proxy_resp_info;
+};
+
+/**
+ * struct ipu_fw_proxy_send_queue_token
+ */
+struct ipu_fw_proxy_send_queue_token {
+ u32 request_id;
+ u32 region_index;
+ u32 offset;
+ u32 value;
+};
+
+void ipu_fw_isys_set_params(struct ipu_fw_isys_stream_cfg_data_abi *stream_cfg);
+
+void ipu_fw_isys_dump_stream_cfg(struct device *dev,
+ struct ipu_fw_isys_stream_cfg_data_abi
+ *stream_cfg);
+void ipu_fw_isys_dump_frame_buff_set(struct device *dev,
+ struct ipu_fw_isys_frame_buff_set_abi *buf,
+ unsigned int outputs);
+int ipu_fw_isys_init(struct ipu_isys *isys, unsigned int num_streams);
+int ipu_fw_isys_close(struct ipu_isys *isys);
+int ipu_fw_isys_simple_cmd(struct ipu_isys *isys,
+ const unsigned int stream_handle,
+ enum ipu_fw_isys_send_type send_type);
+int ipu_fw_isys_complex_cmd(struct ipu_isys *isys,
+ const unsigned int stream_handle,
+ void *cpu_mapped_buf,
+ dma_addr_t dma_mapped_buf,
+ size_t size, enum ipu_fw_isys_send_type send_type);
+int ipu_fw_isys_send_proxy_token(struct ipu_isys *isys,
+ unsigned int req_id,
+ unsigned int index,
+ unsigned int offset, u32 value);
+void ipu_fw_isys_cleanup(struct ipu_isys *isys);
+struct ipu_fw_isys_resp_info_abi *
+ipu_fw_isys_get_resp(void *context, unsigned int queue,
+ struct ipu_fw_isys_resp_info_abi *response);
+void ipu_fw_isys_put_resp(void *context, unsigned int queue);
+#endif
diff --git a/drivers/media/pci/intel/ipu-fw-psys.c b/drivers/media/pci/intel/ipu-fw-psys.c
new file mode 100644
index 0000000000000..68da73fa5c7a1
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-fw-psys.c
@@ -0,0 +1,430 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2016 - 2020 Intel Corporation
+
+#include <linux/delay.h>
+
+#include <uapi/linux/ipu-psys.h>
+
+#include "ipu-fw-com.h"
+#include "ipu-fw-psys.h"
+#include "ipu-psys.h"
+
+int ipu_fw_psys_pg_start(struct ipu_psys_kcmd *kcmd)
+{
+ kcmd->kpg->pg->state = IPU_FW_PSYS_PROCESS_GROUP_STARTED;
+ return 0;
+}
+
+int ipu_fw_psys_pg_disown(struct ipu_psys_kcmd *kcmd)
+{
+ struct ipu_fw_psys_cmd *psys_cmd;
+ int ret = 0;
+
+ psys_cmd = ipu_send_get_token(kcmd->fh->psys->fwcom, 0);
+ if (!psys_cmd) {
+ dev_err(&kcmd->fh->psys->adev->dev,
+ "%s failed to get token!\n", __func__);
+ kcmd->pg_user = NULL;
+ ret = -ENODATA;
+ goto out;
+ }
+ psys_cmd->command = IPU_FW_PSYS_PROCESS_GROUP_CMD_START;
+ psys_cmd->msg = 0;
+ psys_cmd->context_handle = kcmd->kpg->pg->ipu_virtual_address;
+ ipu_send_put_token(kcmd->fh->psys->fwcom, 0);
+
+out:
+ return ret;
+}
+
+int ipu_fw_psys_ppg_suspend(struct ipu_psys_kcmd *kcmd)
+{
+ struct ipu_fw_psys_cmd *psys_cmd;
+ int ret = 0;
+
+ /* ppg suspend cmd uses QUEUE_DEVICE_ID instead of QUEUE_COMMAND_ID */
+ psys_cmd = ipu_send_get_token(kcmd->fh->psys->fwcom, 1);
+ if (!psys_cmd) {
+ dev_err(&kcmd->fh->psys->adev->dev,
+ "%s failed to get token!\n", __func__);
+ kcmd->pg_user = NULL;
+ ret = -ENODATA;
+ goto out;
+ }
+ psys_cmd->command = IPU_FW_PSYS_PROCESS_GROUP_CMD_SUSPEND;
+ psys_cmd->msg = 0;
+ psys_cmd->context_handle = kcmd->kpg->pg->ipu_virtual_address;
+ ipu_send_put_token(kcmd->fh->psys->fwcom, 1);
+
+out:
+ return ret;
+}
+
+int ipu_fw_psys_ppg_resume(struct ipu_psys_kcmd *kcmd)
+{
+ struct ipu_fw_psys_cmd *psys_cmd;
+ int ret = 0;
+
+ psys_cmd = ipu_send_get_token(kcmd->fh->psys->fwcom, 0);
+ if (!psys_cmd) {
+ dev_err(&kcmd->fh->psys->adev->dev,
+ "%s failed to get token!\n", __func__);
+ kcmd->pg_user = NULL;
+ ret = -ENODATA;
+ goto out;
+ }
+ psys_cmd->command = IPU_FW_PSYS_PROCESS_GROUP_CMD_RESUME;
+ psys_cmd->msg = 0;
+ psys_cmd->context_handle = kcmd->kpg->pg->ipu_virtual_address;
+ ipu_send_put_token(kcmd->fh->psys->fwcom, 0);
+
+out:
+ return ret;
+}
+
+int ipu_fw_psys_pg_abort(struct ipu_psys_kcmd *kcmd)
+{
+ struct ipu_fw_psys_cmd *psys_cmd;
+ int ret = 0;
+
+ psys_cmd = ipu_send_get_token(kcmd->fh->psys->fwcom, 0);
+ if (!psys_cmd) {
+ dev_err(&kcmd->fh->psys->adev->dev,
+ "%s failed to get token!\n", __func__);
+ kcmd->pg_user = NULL;
+ ret = -ENODATA;
+ goto out;
+ }
+ psys_cmd->command = IPU_FW_PSYS_PROCESS_GROUP_CMD_STOP;
+ psys_cmd->msg = 0;
+ psys_cmd->context_handle = kcmd->kpg->pg->ipu_virtual_address;
+ ipu_send_put_token(kcmd->fh->psys->fwcom, 0);
+
+out:
+ return ret;
+}
+
+int ipu_fw_psys_pg_submit(struct ipu_psys_kcmd *kcmd)
+{
+ kcmd->kpg->pg->state = IPU_FW_PSYS_PROCESS_GROUP_BLOCKED;
+ return 0;
+}
+
+int ipu_fw_psys_rcv_event(struct ipu_psys *psys,
+ struct ipu_fw_psys_event *event)
+{
+ void *rcv;
+
+ rcv = ipu_recv_get_token(psys->fwcom, 0);
+ if (!rcv)
+ return 0;
+
+ memcpy(event, rcv, sizeof(*event));
+ ipu_recv_put_token(psys->fwcom, 0);
+ return 1;
+}
+
+int ipu_fw_psys_terminal_set(struct ipu_fw_psys_terminal *terminal,
+ int terminal_idx,
+ struct ipu_psys_kcmd *kcmd,
+ u32 buffer, unsigned int size)
+{
+ u32 type;
+ u32 buffer_state;
+
+ type = terminal->terminal_type;
+
+ switch (type) {
+ case IPU_FW_PSYS_TERMINAL_TYPE_PARAM_CACHED_IN:
+ case IPU_FW_PSYS_TERMINAL_TYPE_PARAM_CACHED_OUT:
+ case IPU_FW_PSYS_TERMINAL_TYPE_PARAM_SPATIAL_IN:
+ case IPU_FW_PSYS_TERMINAL_TYPE_PARAM_SPATIAL_OUT:
+ case IPU_FW_PSYS_TERMINAL_TYPE_PARAM_SLICED_IN:
+ case IPU_FW_PSYS_TERMINAL_TYPE_PARAM_SLICED_OUT:
+ case IPU_FW_PSYS_TERMINAL_TYPE_PROGRAM:
+ case IPU_FW_PSYS_TERMINAL_TYPE_PROGRAM_CONTROL_INIT:
+ buffer_state = IPU_FW_PSYS_BUFFER_UNDEFINED;
+ break;
+ case IPU_FW_PSYS_TERMINAL_TYPE_PARAM_STREAM:
+ case IPU_FW_PSYS_TERMINAL_TYPE_DATA_IN:
+ case IPU_FW_PSYS_TERMINAL_TYPE_STATE_IN:
+ buffer_state = IPU_FW_PSYS_BUFFER_FULL;
+ break;
+ case IPU_FW_PSYS_TERMINAL_TYPE_DATA_OUT:
+ case IPU_FW_PSYS_TERMINAL_TYPE_STATE_OUT:
+ buffer_state = IPU_FW_PSYS_BUFFER_EMPTY;
+ break;
+ default:
+ dev_err(&kcmd->fh->psys->adev->dev,
+ "unknown terminal type: 0x%x\n", type);
+ return -EAGAIN;
+ }
+
+ if (type == IPU_FW_PSYS_TERMINAL_TYPE_DATA_IN ||
+ type == IPU_FW_PSYS_TERMINAL_TYPE_DATA_OUT) {
+ struct ipu_fw_psys_data_terminal *dterminal =
+ (struct ipu_fw_psys_data_terminal *)terminal;
+ dterminal->connection_type = IPU_FW_PSYS_CONNECTION_MEMORY;
+ dterminal->frame.data_bytes = size;
+ if (!ipu_fw_psys_pg_get_protocol(kcmd))
+ dterminal->frame.data = buffer;
+ else
+ dterminal->frame.data_index = terminal_idx;
+ dterminal->frame.buffer_state = buffer_state;
+ } else {
+ struct ipu_fw_psys_param_terminal *pterminal =
+ (struct ipu_fw_psys_param_terminal *)terminal;
+ if (!ipu_fw_psys_pg_get_protocol(kcmd))
+ pterminal->param_payload.buffer = buffer;
+ else
+ pterminal->param_payload.terminal_index = terminal_idx;
+ }
+ return 0;
+}
+
+void ipu_fw_psys_pg_dump(struct ipu_psys *psys,
+ struct ipu_psys_kcmd *kcmd, const char *note)
+{
+ ipu6_fw_psys_pg_dump(psys, kcmd, note);
+}
+
+int ipu_fw_psys_pg_get_id(struct ipu_psys_kcmd *kcmd)
+{
+ return kcmd->kpg->pg->ID;
+}
+
+int ipu_fw_psys_pg_get_terminal_count(struct ipu_psys_kcmd *kcmd)
+{
+ return kcmd->kpg->pg->terminal_count;
+}
+
+int ipu_fw_psys_pg_get_size(struct ipu_psys_kcmd *kcmd)
+{
+ return kcmd->kpg->pg->size;
+}
+
+int ipu_fw_psys_pg_set_ipu_vaddress(struct ipu_psys_kcmd *kcmd,
+ dma_addr_t vaddress)
+{
+ kcmd->kpg->pg->ipu_virtual_address = vaddress;
+ return 0;
+}
+
+struct ipu_fw_psys_terminal *ipu_fw_psys_pg_get_terminal(struct ipu_psys_kcmd
+ *kcmd, int index)
+{
+ struct ipu_fw_psys_terminal *terminal;
+ u16 *terminal_offset_table;
+
+ terminal_offset_table =
+ (uint16_t *)((char *)kcmd->kpg->pg +
+ kcmd->kpg->pg->terminals_offset);
+ terminal = (struct ipu_fw_psys_terminal *)
+ ((char *)kcmd->kpg->pg + terminal_offset_table[index]);
+ return terminal;
+}
+
+void ipu_fw_psys_pg_set_token(struct ipu_psys_kcmd *kcmd, u64 token)
+{
+ kcmd->kpg->pg->token = (u64)token;
+}
+
+u64 ipu_fw_psys_pg_get_token(struct ipu_psys_kcmd *kcmd)
+{
+ return kcmd->kpg->pg->token;
+}
+
+int ipu_fw_psys_pg_get_protocol(struct ipu_psys_kcmd *kcmd)
+{
+ return kcmd->kpg->pg->protocol_version;
+}
+
+int ipu_fw_psys_ppg_set_buffer_set(struct ipu_psys_kcmd *kcmd,
+ struct ipu_fw_psys_terminal *terminal,
+ int terminal_idx, u32 buffer)
+{
+ u32 type;
+ u32 buffer_state;
+ u32 *buffer_ptr;
+ struct ipu_fw_psys_buffer_set *buf_set = kcmd->kbuf_set->buf_set;
+
+ type = terminal->terminal_type;
+
+ switch (type) {
+ case IPU_FW_PSYS_TERMINAL_TYPE_PARAM_CACHED_IN:
+ case IPU_FW_PSYS_TERMINAL_TYPE_PARAM_CACHED_OUT:
+ case IPU_FW_PSYS_TERMINAL_TYPE_PARAM_SPATIAL_IN:
+ case IPU_FW_PSYS_TERMINAL_TYPE_PARAM_SPATIAL_OUT:
+ case IPU_FW_PSYS_TERMINAL_TYPE_PARAM_SLICED_IN:
+ case IPU_FW_PSYS_TERMINAL_TYPE_PARAM_SLICED_OUT:
+ case IPU_FW_PSYS_TERMINAL_TYPE_PROGRAM:
+ case IPU_FW_PSYS_TERMINAL_TYPE_PROGRAM_CONTROL_INIT:
+ buffer_state = IPU_FW_PSYS_BUFFER_UNDEFINED;
+ break;
+ case IPU_FW_PSYS_TERMINAL_TYPE_PARAM_STREAM:
+ case IPU_FW_PSYS_TERMINAL_TYPE_DATA_IN:
+ case IPU_FW_PSYS_TERMINAL_TYPE_STATE_IN:
+ buffer_state = IPU_FW_PSYS_BUFFER_FULL;
+ break;
+ case IPU_FW_PSYS_TERMINAL_TYPE_DATA_OUT:
+ case IPU_FW_PSYS_TERMINAL_TYPE_STATE_OUT:
+ buffer_state = IPU_FW_PSYS_BUFFER_EMPTY;
+ break;
+ default:
+ dev_err(&kcmd->fh->psys->adev->dev,
+ "unknown terminal type: 0x%x\n", type);
+ return -EAGAIN;
+ }
+
+ buffer_ptr = (u32 *)((char *)buf_set + sizeof(*buf_set) +
+ terminal_idx * sizeof(*buffer_ptr));
+
+ *buffer_ptr = buffer;
+
+ if (type == IPU_FW_PSYS_TERMINAL_TYPE_DATA_IN ||
+ type == IPU_FW_PSYS_TERMINAL_TYPE_DATA_OUT) {
+ struct ipu_fw_psys_data_terminal *dterminal =
+ (struct ipu_fw_psys_data_terminal *)terminal;
+ dterminal->frame.buffer_state = buffer_state;
+ }
+
+ return 0;
+}
+
+size_t ipu_fw_psys_ppg_get_buffer_set_size(struct ipu_psys_kcmd *kcmd)
+{
+ return (sizeof(struct ipu_fw_psys_buffer_set) +
+ kcmd->kpg->pg->terminal_count * sizeof(u32));
+}
+
+int
+ipu_fw_psys_ppg_buffer_set_vaddress(struct ipu_fw_psys_buffer_set *buf_set,
+ u32 vaddress)
+{
+ buf_set->ipu_virtual_address = vaddress;
+ return 0;
+}
+
+int ipu_fw_psys_ppg_buffer_set_set_kernel_enable_bitmap(
+ struct ipu_fw_psys_buffer_set *buf_set,
+ u32 *kernel_enable_bitmap)
+{
+ memcpy(buf_set->kernel_enable_bitmap, (u8 *)kernel_enable_bitmap,
+ sizeof(buf_set->kernel_enable_bitmap));
+ return 0;
+}
+
+struct ipu_fw_psys_buffer_set *
+ipu_fw_psys_ppg_create_buffer_set(struct ipu_psys_kcmd *kcmd,
+ void *kaddr, u32 frame_counter)
+{
+ struct ipu_fw_psys_buffer_set *buffer_set = NULL;
+ unsigned int i;
+
+ buffer_set = (struct ipu_fw_psys_buffer_set *)kaddr;
+
+ /*
+ * Set base struct members
+ */
+ buffer_set->ipu_virtual_address = 0;
+ buffer_set->process_group_handle = kcmd->kpg->pg->ipu_virtual_address;
+ buffer_set->frame_counter = frame_counter;
+ buffer_set->terminal_count = kcmd->kpg->pg->terminal_count;
+
+ /*
+ * Initialize adjacent buffer addresses
+ */
+ for (i = 0; i < buffer_set->terminal_count; i++) {
+ u32 *buffer =
+ (u32 *)((char *)buffer_set +
+ sizeof(*buffer_set) + sizeof(u32) * i);
+
+ *buffer = 0;
+ }
+
+ return buffer_set;
+}
+
+int ipu_fw_psys_ppg_enqueue_bufs(struct ipu_psys_kcmd *kcmd)
+{
+ struct ipu_fw_psys_cmd *psys_cmd;
+ unsigned int queue_id;
+ int ret = 0;
+ unsigned int size;
+
+ if (ipu_ver == IPU_VER_6SE)
+ size = IPU6SE_FW_PSYS_N_PSYS_CMD_QUEUE_ID;
+ else
+ size = IPU6_FW_PSYS_N_PSYS_CMD_QUEUE_ID;
+ queue_id = kcmd->kpg->pg->base_queue_id;
+
+ if (queue_id >= size)
+ return -EINVAL;
+
+ psys_cmd = ipu_send_get_token(kcmd->fh->psys->fwcom, queue_id);
+ if (!psys_cmd) {
+ dev_err(&kcmd->fh->psys->adev->dev,
+ "%s failed to get token!\n", __func__);
+ kcmd->pg_user = NULL;
+ return -ENODATA;
+ }
+
+ psys_cmd->command = IPU_FW_PSYS_PROCESS_GROUP_CMD_RUN;
+ psys_cmd->msg = 0;
+ psys_cmd->context_handle = kcmd->kbuf_set->buf_set->ipu_virtual_address;
+
+ ipu_send_put_token(kcmd->fh->psys->fwcom, queue_id);
+
+ return ret;
+}
+
+u8 ipu_fw_psys_ppg_get_base_queue_id(struct ipu_psys_kcmd *kcmd)
+{
+ return kcmd->kpg->pg->base_queue_id;
+}
+
+void ipu_fw_psys_ppg_set_base_queue_id(struct ipu_psys_kcmd *kcmd, u8 queue_id)
+{
+ kcmd->kpg->pg->base_queue_id = queue_id;
+}
+
+int ipu_fw_psys_open(struct ipu_psys *psys)
+{
+ int retry = IPU_PSYS_OPEN_RETRY, retval;
+
+ retval = ipu_fw_com_open(psys->fwcom);
+ if (retval) {
+ dev_err(&psys->adev->dev, "fw com open failed.\n");
+ return retval;
+ }
+
+ do {
+ usleep_range(IPU_PSYS_OPEN_TIMEOUT_US,
+ IPU_PSYS_OPEN_TIMEOUT_US + 10);
+ retval = ipu_fw_com_ready(psys->fwcom);
+ if (!retval) {
+ dev_dbg(&psys->adev->dev, "psys port open ready!\n");
+ break;
+ }
+ } while (retry-- > 0);
+
+ if (!retry && retval) {
+ dev_err(&psys->adev->dev, "psys port open ready failed %d\n",
+ retval);
+ ipu_fw_com_close(psys->fwcom);
+ return retval;
+ }
+ return 0;
+}
+
+int ipu_fw_psys_close(struct ipu_psys *psys)
+{
+ int retval;
+
+ retval = ipu_fw_com_close(psys->fwcom);
+ if (retval) {
+ dev_err(&psys->adev->dev, "fw com close failed.\n");
+ return retval;
+ }
+ return retval;
+}
diff --git a/drivers/media/pci/intel/ipu-fw-psys.h b/drivers/media/pci/intel/ipu-fw-psys.h
new file mode 100644
index 0000000000000..912a0986c060d
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-fw-psys.h
@@ -0,0 +1,382 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2016 - 2020 Intel Corporation */
+
+#ifndef IPU_FW_PSYS_H
+#define IPU_FW_PSYS_H
+
+#include "ipu6-platform-resources.h"
+#include "ipu6se-platform-resources.h"
+#include "ipu6ep-platform-resources.h"
+
+#define IPU_FW_PSYS_CMD_QUEUE_SIZE 0x20
+#define IPU_FW_PSYS_EVENT_QUEUE_SIZE 0x40
+
+#define IPU_FW_PSYS_CMD_BITS 64
+#define IPU_FW_PSYS_EVENT_BITS 128
+
+enum {
+ IPU_FW_PSYS_EVENT_TYPE_SUCCESS = 0,
+ IPU_FW_PSYS_EVENT_TYPE_UNKNOWN_ERROR = 1,
+ IPU_FW_PSYS_EVENT_TYPE_RET_REM_OBJ_NOT_FOUND = 2,
+ IPU_FW_PSYS_EVENT_TYPE_RET_REM_OBJ_TOO_BIG = 3,
+ IPU_FW_PSYS_EVENT_TYPE_RET_REM_OBJ_DDR_TRANS_ERR = 4,
+ IPU_FW_PSYS_EVENT_TYPE_RET_REM_OBJ_NULL_PKG_DIR_ADDR = 5,
+ IPU_FW_PSYS_EVENT_TYPE_PROC_GRP_LOAD_FRAME_ERR = 6,
+ IPU_FW_PSYS_EVENT_TYPE_PROC_GRP_LOAD_FRAGMENT_ERR = 7,
+ IPU_FW_PSYS_EVENT_TYPE_PROC_GRP_PROCESS_COUNT_ZERO = 8,
+ IPU_FW_PSYS_EVENT_TYPE_PROC_GRP_PROCESS_INIT_ERR = 9,
+ IPU_FW_PSYS_EVENT_TYPE_PROC_GRP_ABORT = 10,
+ IPU_FW_PSYS_EVENT_TYPE_PROC_GRP_NULL = 11,
+ IPU_FW_PSYS_EVENT_TYPE_PROC_GRP_VALIDATION_ERR = 12,
+ IPU_FW_PSYS_EVENT_TYPE_PROC_GRP_INVALID_FRAME = 13
+};
+
+enum {
+ IPU_FW_PSYS_EVENT_QUEUE_MAIN_ID,
+ IPU_FW_PSYS_N_PSYS_EVENT_QUEUE_ID
+};
+
+enum {
+ IPU_FW_PSYS_PROCESS_GROUP_ERROR = 0,
+ IPU_FW_PSYS_PROCESS_GROUP_CREATED,
+ IPU_FW_PSYS_PROCESS_GROUP_READY,
+ IPU_FW_PSYS_PROCESS_GROUP_BLOCKED,
+ IPU_FW_PSYS_PROCESS_GROUP_STARTED,
+ IPU_FW_PSYS_PROCESS_GROUP_RUNNING,
+ IPU_FW_PSYS_PROCESS_GROUP_STALLED,
+ IPU_FW_PSYS_PROCESS_GROUP_STOPPED,
+ IPU_FW_PSYS_N_PROCESS_GROUP_STATES
+};
+
+enum {
+ IPU_FW_PSYS_CONNECTION_MEMORY = 0,
+ IPU_FW_PSYS_CONNECTION_MEMORY_STREAM,
+ IPU_FW_PSYS_CONNECTION_STREAM,
+ IPU_FW_PSYS_N_CONNECTION_TYPES
+};
+
+enum {
+ IPU_FW_PSYS_BUFFER_NULL = 0,
+ IPU_FW_PSYS_BUFFER_UNDEFINED,
+ IPU_FW_PSYS_BUFFER_EMPTY,
+ IPU_FW_PSYS_BUFFER_NONEMPTY,
+ IPU_FW_PSYS_BUFFER_FULL,
+ IPU_FW_PSYS_N_BUFFER_STATES
+};
+
+enum {
+ IPU_FW_PSYS_TERMINAL_TYPE_DATA_IN = 0,
+ IPU_FW_PSYS_TERMINAL_TYPE_DATA_OUT,
+ IPU_FW_PSYS_TERMINAL_TYPE_PARAM_STREAM,
+ IPU_FW_PSYS_TERMINAL_TYPE_PARAM_CACHED_IN,
+ IPU_FW_PSYS_TERMINAL_TYPE_PARAM_CACHED_OUT,
+ IPU_FW_PSYS_TERMINAL_TYPE_PARAM_SPATIAL_IN,
+ IPU_FW_PSYS_TERMINAL_TYPE_PARAM_SPATIAL_OUT,
+ IPU_FW_PSYS_TERMINAL_TYPE_PARAM_SLICED_IN,
+ IPU_FW_PSYS_TERMINAL_TYPE_PARAM_SLICED_OUT,
+ IPU_FW_PSYS_TERMINAL_TYPE_STATE_IN,
+ IPU_FW_PSYS_TERMINAL_TYPE_STATE_OUT,
+ IPU_FW_PSYS_TERMINAL_TYPE_PROGRAM,
+ IPU_FW_PSYS_TERMINAL_TYPE_PROGRAM_CONTROL_INIT,
+ IPU_FW_PSYS_N_TERMINAL_TYPES
+};
+
+enum {
+ IPU_FW_PSYS_COL_DIMENSION = 0,
+ IPU_FW_PSYS_ROW_DIMENSION = 1,
+ IPU_FW_PSYS_N_DATA_DIMENSION = 2
+};
+
+enum {
+ IPU_FW_PSYS_PROCESS_GROUP_CMD_NOP = 0,
+ IPU_FW_PSYS_PROCESS_GROUP_CMD_SUBMIT,
+ IPU_FW_PSYS_PROCESS_GROUP_CMD_ATTACH,
+ IPU_FW_PSYS_PROCESS_GROUP_CMD_DETACH,
+ IPU_FW_PSYS_PROCESS_GROUP_CMD_START,
+ IPU_FW_PSYS_PROCESS_GROUP_CMD_DISOWN,
+ IPU_FW_PSYS_PROCESS_GROUP_CMD_RUN,
+ IPU_FW_PSYS_PROCESS_GROUP_CMD_STOP,
+ IPU_FW_PSYS_PROCESS_GROUP_CMD_SUSPEND,
+ IPU_FW_PSYS_PROCESS_GROUP_CMD_RESUME,
+ IPU_FW_PSYS_PROCESS_GROUP_CMD_ABORT,
+ IPU_FW_PSYS_PROCESS_GROUP_CMD_RESET,
+ IPU_FW_PSYS_N_PROCESS_GROUP_CMDS
+};
+
+enum {
+ IPU_FW_PSYS_PROCESS_GROUP_PROTOCOL_LEGACY = 0,
+ IPU_FW_PSYS_PROCESS_GROUP_PROTOCOL_PPG,
+ IPU_FW_PSYS_PROCESS_GROUP_N_PROTOCOLS
+};
+
+struct __packed ipu_fw_psys_process_group {
+ u64 token;
+ u64 private_token;
+ u32 routing_bitmap[IPU_FW_PSYS_RBM_NOF_ELEMS];
+ u32 kernel_bitmap[IPU_FW_PSYS_KBM_NOF_ELEMS];
+ u32 size;
+ u32 psys_server_init_cycles;
+ u32 pg_load_start_ts;
+ u32 pg_load_cycles;
+ u32 pg_init_cycles;
+ u32 pg_processing_cycles;
+ u32 pg_next_frame_init_cycles;
+ u32 pg_complete_cycles;
+ u32 ID;
+ u32 state;
+ u32 ipu_virtual_address;
+ u32 resource_bitmap;
+ u16 fragment_count;
+ u16 fragment_state;
+ u16 fragment_limit;
+ u16 processes_offset;
+ u16 terminals_offset;
+ u8 process_count;
+ u8 terminal_count;
+ u8 subgraph_count;
+ u8 protocol_version;
+ u8 base_queue_id;
+ u8 num_queues;
+ u8 mask_irq;
+ u8 error_handling_enable;
+ u8 padding[IPU_FW_PSYS_N_PADDING_UINT8_IN_PROCESS_GROUP_STRUCT];
+};
+
+struct ipu_fw_psys_srv_init {
+ void *host_ddr_pkg_dir;
+ u32 ddr_pkg_dir_address;
+ u32 pkg_dir_size;
+
+ u32 icache_prefetch_sp;
+ u32 icache_prefetch_isp;
+};
+
+struct __packed ipu_fw_psys_cmd {
+ u16 command;
+ u16 msg;
+ u32 context_handle;
+};
+
+struct __packed ipu_fw_psys_event {
+ u16 status;
+ u16 command;
+ u32 context_handle;
+ u64 token;
+};
+
+struct ipu_fw_psys_terminal {
+ u32 terminal_type;
+ s16 parent_offset;
+ u16 size;
+ u16 tm_index;
+ u8 ID;
+ u8 padding[IPU_FW_PSYS_N_PADDING_UINT8_IN_TERMINAL_STRUCT];
+};
+
+struct ipu_fw_psys_param_payload {
+ u64 host_buffer;
+ u32 buffer;
+ u32 terminal_index;
+};
+
+struct ipu_fw_psys_param_terminal {
+ struct ipu_fw_psys_terminal base;
+ struct ipu_fw_psys_param_payload param_payload;
+ u16 param_section_desc_offset;
+ u8 padding[IPU_FW_PSYS_N_PADDING_UINT8_IN_PARAM_TERMINAL_STRUCT];
+};
+
+struct ipu_fw_psys_frame {
+ u32 buffer_state;
+ u32 access_type;
+ u32 pointer_state;
+ u32 access_scope;
+ u32 data;
+ u32 data_index;
+ u32 data_bytes;
+ u8 padding[IPU_FW_PSYS_N_PADDING_UINT8_IN_FRAME_STRUCT];
+};
+
+struct ipu_fw_psys_frame_descriptor {
+ u32 frame_format_type;
+ u32 plane_count;
+ u32 plane_offsets[IPU_FW_PSYS_N_FRAME_PLANES];
+ u32 stride[1];
+ u32 ts_offsets[IPU_FW_PSYS_N_FRAME_PLANES];
+ u16 dimension[2];
+ u16 size;
+ u8 bpp;
+ u8 bpe;
+ u8 is_compressed;
+ u8 padding[IPU_FW_PSYS_N_PADDING_UINT8_IN_FRAME_DESC_STRUCT];
+};
+
+struct ipu_fw_psys_stream {
+ u64 dummy;
+};
+
+struct ipu_fw_psys_data_terminal {
+ struct ipu_fw_psys_terminal base;
+ struct ipu_fw_psys_frame_descriptor frame_descriptor;
+ struct ipu_fw_psys_frame frame;
+ struct ipu_fw_psys_stream stream;
+ u32 reserved;
+ u32 connection_type;
+ u16 fragment_descriptor_offset;
+ u8 kernel_id;
+ u8 subgraph_id;
+ u8 padding[IPU_FW_PSYS_N_PADDING_UINT8_IN_DATA_TERMINAL_STRUCT];
+};
+
+struct ipu_fw_psys_buffer_set {
+ u64 token;
+ u32 kernel_enable_bitmap[IPU_FW_PSYS_KERNEL_BITMAP_NOF_ELEMS];
+ u32 terminal_enable_bitmap[IPU_FW_PSYS_KERNEL_BITMAP_NOF_ELEMS];
+ u32 routing_enable_bitmap[IPU_FW_PSYS_KERNEL_BITMAP_NOF_ELEMS];
+ u32 rbm[IPU_FW_PSYS_RBM_NOF_ELEMS];
+ u32 ipu_virtual_address;
+ u32 process_group_handle;
+ u16 terminal_count;
+ u8 frame_counter;
+ u8 padding[IPU_FW_PSYS_N_PADDING_UINT8_IN_BUFFER_SET_STRUCT];
+};
+
+struct ipu_fw_psys_program_group_manifest {
+ u32 kernel_bitmap[IPU_FW_PSYS_KERNEL_BITMAP_NOF_ELEMS];
+ u32 ID;
+ u16 program_manifest_offset;
+ u16 terminal_manifest_offset;
+ u16 private_data_offset;
+ u16 rbm_manifest_offset;
+ u16 size;
+ u8 alignment;
+ u8 kernel_count;
+ u8 program_count;
+ u8 terminal_count;
+ u8 subgraph_count;
+ u8 reserved[5];
+};
+
+struct ipu_fw_generic_program_manifest {
+ u16 *dev_chn_size;
+ u16 *dev_chn_offset;
+ u16 *ext_mem_size;
+ u16 *ext_mem_offset;
+ u8 cell_id;
+ u8 cells[IPU_FW_PSYS_PROCESS_MAX_CELLS];
+ u8 cell_type_id;
+ u8 *is_dfm_relocatable;
+ u32 *dfm_port_bitmap;
+ u32 *dfm_active_port_bitmap;
+};
+
+struct ipu_fw_resource_definitions {
+ u32 num_cells;
+ u32 num_cells_type;
+ const u8 *cells;
+ u32 num_dev_channels;
+ const u16 *dev_channels;
+
+ u32 num_ext_mem_types;
+ u32 num_ext_mem_ids;
+ const u16 *ext_mem_ids;
+
+ u32 num_dfm_ids;
+ const u16 *dfms;
+
+ u32 cell_mem_row;
+ const u8 *cell_mem;
+};
+
+struct ipu6_psys_hw_res_variant {
+ unsigned int queue_num;
+ unsigned int cell_num;
+ int (*set_proc_dev_chn)(struct ipu_fw_psys_process *ptr, u16 offset,
+ u16 value);
+ int (*set_proc_dfm_bitmap)(struct ipu_fw_psys_process *ptr,
+ u16 id, u32 bitmap, u32 active_bitmap);
+ int (*set_proc_ext_mem)(struct ipu_fw_psys_process *ptr,
+ u16 type_id, u16 mem_id, u16 offset);
+ int (*get_pgm_by_proc)(struct ipu_fw_generic_program_manifest *gen_pm,
+ const struct ipu_fw_psys_program_group_manifest
+ *pg_manifest,
+ struct ipu_fw_psys_process *process);
+};
+struct ipu_psys_kcmd;
+struct ipu_psys;
+int ipu_fw_psys_pg_start(struct ipu_psys_kcmd *kcmd);
+int ipu_fw_psys_pg_disown(struct ipu_psys_kcmd *kcmd);
+int ipu_fw_psys_pg_abort(struct ipu_psys_kcmd *kcmd);
+int ipu_fw_psys_pg_submit(struct ipu_psys_kcmd *kcmd);
+int ipu_fw_psys_ppg_suspend(struct ipu_psys_kcmd *kcmd);
+int ipu_fw_psys_ppg_resume(struct ipu_psys_kcmd *kcmd);
+int ipu_fw_psys_pg_load_cycles(struct ipu_psys_kcmd *kcmd);
+int ipu_fw_psys_pg_init_cycles(struct ipu_psys_kcmd *kcmd);
+int ipu_fw_psys_pg_processing_cycles(struct ipu_psys_kcmd *kcmd);
+int ipu_fw_psys_pg_server_init_cycles(struct ipu_psys_kcmd *kcmd);
+int ipu_fw_psys_pg_next_frame_init_cycles(struct ipu_psys_kcmd *kcmd);
+int ipu_fw_psys_pg_complete_cycles(struct ipu_psys_kcmd *kcmd);
+int ipu_fw_psys_rcv_event(struct ipu_psys *psys,
+ struct ipu_fw_psys_event *event);
+int ipu_fw_psys_terminal_set(struct ipu_fw_psys_terminal *terminal,
+ int terminal_idx,
+ struct ipu_psys_kcmd *kcmd,
+ u32 buffer, unsigned int size);
+void ipu_fw_psys_pg_dump(struct ipu_psys *psys,
+ struct ipu_psys_kcmd *kcmd, const char *note);
+int ipu_fw_psys_pg_get_id(struct ipu_psys_kcmd *kcmd);
+int ipu_fw_psys_pg_get_terminal_count(struct ipu_psys_kcmd *kcmd);
+int ipu_fw_psys_pg_get_size(struct ipu_psys_kcmd *kcmd);
+int ipu_fw_psys_pg_set_ipu_vaddress(struct ipu_psys_kcmd *kcmd,
+ dma_addr_t vaddress);
+struct ipu_fw_psys_terminal *ipu_fw_psys_pg_get_terminal(struct ipu_psys_kcmd
+ *kcmd, int index);
+void ipu_fw_psys_pg_set_token(struct ipu_psys_kcmd *kcmd, u64 token);
+u64 ipu_fw_psys_pg_get_token(struct ipu_psys_kcmd *kcmd);
+int ipu_fw_psys_ppg_set_buffer_set(struct ipu_psys_kcmd *kcmd,
+ struct ipu_fw_psys_terminal *terminal,
+ int terminal_idx, u32 buffer);
+size_t ipu_fw_psys_ppg_get_buffer_set_size(struct ipu_psys_kcmd *kcmd);
+int
+ipu_fw_psys_ppg_buffer_set_vaddress(struct ipu_fw_psys_buffer_set *buf_set,
+ u32 vaddress);
+int ipu_fw_psys_ppg_buffer_set_set_kernel_enable_bitmap(
+ struct ipu_fw_psys_buffer_set *buf_set, u32 *kernel_enable_bitmap);
+struct ipu_fw_psys_buffer_set *
+ipu_fw_psys_ppg_create_buffer_set(struct ipu_psys_kcmd *kcmd,
+ void *kaddr, u32 frame_counter);
+int ipu_fw_psys_ppg_enqueue_bufs(struct ipu_psys_kcmd *kcmd);
+u8 ipu_fw_psys_ppg_get_base_queue_id(struct ipu_psys_kcmd *kcmd);
+void ipu_fw_psys_ppg_set_base_queue_id(struct ipu_psys_kcmd *kcmd, u8 queue_id);
+int ipu_fw_psys_pg_get_protocol(struct ipu_psys_kcmd *kcmd);
+int ipu_fw_psys_open(struct ipu_psys *psys);
+int ipu_fw_psys_close(struct ipu_psys *psys);
+
+/* common resource interface for both abi and api mode */
+int ipu_fw_psys_set_process_cell_id(struct ipu_fw_psys_process *ptr, u8 index,
+ u8 value);
+u8 ipu_fw_psys_get_process_cell_id(struct ipu_fw_psys_process *ptr, u8 index);
+int ipu_fw_psys_clear_process_cell(struct ipu_fw_psys_process *ptr);
+int ipu_fw_psys_set_proc_dev_chn(struct ipu_fw_psys_process *ptr, u16 offset,
+ u16 value);
+int ipu_fw_psys_set_process_ext_mem(struct ipu_fw_psys_process *ptr,
+ u16 type_id, u16 mem_id, u16 offset);
+int ipu_fw_psys_get_program_manifest_by_process(
+ struct ipu_fw_generic_program_manifest *gen_pm,
+ const struct ipu_fw_psys_program_group_manifest *pg_manifest,
+ struct ipu_fw_psys_process *process);
+int ipu6_fw_psys_set_proc_dev_chn(struct ipu_fw_psys_process *ptr, u16 offset,
+ u16 value);
+int ipu6_fw_psys_set_proc_dfm_bitmap(struct ipu_fw_psys_process *ptr,
+ u16 id, u32 bitmap,
+ u32 active_bitmap);
+int ipu6_fw_psys_set_process_ext_mem(struct ipu_fw_psys_process *ptr,
+ u16 type_id, u16 mem_id, u16 offset);
+int ipu6_fw_psys_get_program_manifest_by_process(
+ struct ipu_fw_generic_program_manifest *gen_pm,
+ const struct ipu_fw_psys_program_group_manifest *pg_manifest,
+ struct ipu_fw_psys_process *process);
+void ipu6_fw_psys_pg_dump(struct ipu_psys *psys,
+ struct ipu_psys_kcmd *kcmd, const char *note);
+void ipu6_psys_hw_res_variant_init(void);
+#endif /* IPU_FW_PSYS_H */
diff --git a/drivers/media/pci/intel/ipu-isys-csi2-be-soc.c b/drivers/media/pci/intel/ipu-isys-csi2-be-soc.c
new file mode 100644
index 0000000000000..7072500d930a9
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-isys-csi2-be-soc.c
@@ -0,0 +1,341 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2014 - 2021 Intel Corporation
+
+#include <linux/device.h>
+#include <linux/module.h>
+
+#include <media/ipu-isys.h>
+#include <media/media-entity.h>
+#include <media/v4l2-device.h>
+
+#include "ipu.h"
+#include "ipu-bus.h"
+#include "ipu-isys.h"
+#include "ipu-isys-csi2-be.h"
+#include "ipu-isys-subdev.h"
+#include "ipu-isys-video.h"
+
+/*
+ * Raw bayer format pixel order MUST BE MAINTAINED in groups of four codes.
+ * Otherwise pixel order calculation below WILL BREAK!
+ */
+static const u32 csi2_be_soc_supported_codes_pad[] = {
+ MEDIA_BUS_FMT_Y10_1X10,
+ MEDIA_BUS_FMT_RGB565_1X16,
+ MEDIA_BUS_FMT_RGB888_1X24,
+ MEDIA_BUS_FMT_UYVY8_1X16,
+ MEDIA_BUS_FMT_YUYV8_1X16,
+ MEDIA_BUS_FMT_SBGGR12_1X12,
+ MEDIA_BUS_FMT_SGBRG12_1X12,
+ MEDIA_BUS_FMT_SGRBG12_1X12,
+ MEDIA_BUS_FMT_SRGGB12_1X12,
+ MEDIA_BUS_FMT_SBGGR10_1X10,
+ MEDIA_BUS_FMT_SGBRG10_1X10,
+ MEDIA_BUS_FMT_SGRBG10_1X10,
+ MEDIA_BUS_FMT_SRGGB10_1X10,
+ MEDIA_BUS_FMT_SBGGR8_1X8,
+ MEDIA_BUS_FMT_SGBRG8_1X8,
+ MEDIA_BUS_FMT_SGRBG8_1X8,
+ MEDIA_BUS_FMT_SRGGB8_1X8,
+ 0,
+};
+
+/*
+ * Raw bayer format pixel order MUST BE MAINTAINED in groups of four codes.
+ * Otherwise pixel order calculation below WILL BREAK!
+ */
+static const u32 csi2_be_soc_supported_raw_bayer_codes_pad[] = {
+ MEDIA_BUS_FMT_SBGGR12_1X12,
+ MEDIA_BUS_FMT_SGBRG12_1X12,
+ MEDIA_BUS_FMT_SGRBG12_1X12,
+ MEDIA_BUS_FMT_SRGGB12_1X12,
+ MEDIA_BUS_FMT_SBGGR10_1X10,
+ MEDIA_BUS_FMT_SGBRG10_1X10,
+ MEDIA_BUS_FMT_SGRBG10_1X10,
+ MEDIA_BUS_FMT_SRGGB10_1X10,
+ MEDIA_BUS_FMT_SBGGR8_1X8,
+ MEDIA_BUS_FMT_SGBRG8_1X8,
+ MEDIA_BUS_FMT_SGRBG8_1X8,
+ MEDIA_BUS_FMT_SRGGB8_1X8,
+ 0,
+};
+
+static int get_supported_code_index(u32 code)
+{
+ int i;
+
+ for (i = 0; csi2_be_soc_supported_raw_bayer_codes_pad[i]; i++) {
+ if (csi2_be_soc_supported_raw_bayer_codes_pad[i] == code)
+ return i;
+ }
+ return -EINVAL;
+}
+
+static const u32 *csi2_be_soc_supported_codes[NR_OF_CSI2_BE_SOC_PADS];
+
+static struct v4l2_subdev_internal_ops csi2_be_soc_sd_internal_ops = {
+ .open = ipu_isys_subdev_open,
+ .close = ipu_isys_subdev_close,
+};
+
+static const struct v4l2_subdev_core_ops csi2_be_soc_sd_core_ops = {
+};
+
+static const struct v4l2_ctrl_config compression_ctrl_cfg = {
+ .ops = NULL,
+ .id = V4L2_CID_IPU_ISYS_COMPRESSION,
+ .name = "ISYS BE-SOC compression",
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .min = 0,
+ .max = 1,
+ .step = 1,
+ .def = 0,
+};
+
+static int set_stream(struct v4l2_subdev *sd, int enable)
+{
+ return 0;
+}
+
+static const struct v4l2_subdev_video_ops csi2_be_soc_sd_video_ops = {
+ .s_stream = set_stream,
+};
+
+static int
+__subdev_link_validate(struct v4l2_subdev *sd, struct media_link *link,
+ struct v4l2_subdev_format *source_fmt,
+ struct v4l2_subdev_format *sink_fmt)
+{
+ struct ipu_isys_pipeline *ip = container_of(sd->entity.pipe,
+ struct ipu_isys_pipeline,
+ pipe);
+
+ ip->csi2_be_soc = to_ipu_isys_csi2_be_soc(sd);
+ return ipu_isys_subdev_link_validate(sd, link, source_fmt, sink_fmt);
+}
+
+static int
+ipu_isys_csi2_be_soc_set_sel(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_selection *sel)
+{
+ struct ipu_isys_subdev *asd = to_ipu_isys_subdev(sd);
+ struct media_pad *pad = &asd->sd.entity.pads[sel->pad];
+
+ if (sel->target == V4L2_SEL_TGT_CROP &&
+ pad->flags & MEDIA_PAD_FL_SOURCE &&
+ asd->valid_tgts[sel->pad].crop) {
+ enum isys_subdev_prop_tgt tgt =
+ IPU_ISYS_SUBDEV_PROP_TGT_SOURCE_CROP;
+ struct v4l2_mbus_framefmt *ffmt =
+ __ipu_isys_get_ffmt(sd, sd_state, sel->pad, sel->which);
+
+ if (get_supported_code_index(ffmt->code) < 0) {
+ /* Non-bayer formats can't be odd lines cropped */
+ sel->r.left &= ~1;
+ sel->r.top &= ~1;
+ }
+
+ sel->r.width = clamp(sel->r.width, IPU_ISYS_MIN_WIDTH,
+ IPU_ISYS_MAX_WIDTH);
+
+ sel->r.height = clamp(sel->r.height, IPU_ISYS_MIN_HEIGHT,
+ IPU_ISYS_MAX_HEIGHT);
+
+ *__ipu_isys_get_selection(sd, sd_state, sel->target, sel->pad,
+ sel->which) = sel->r;
+ ipu_isys_subdev_fmt_propagate(sd, sd_state, NULL, &sel->r,
+ tgt, sel->pad, sel->which);
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static const struct v4l2_subdev_pad_ops csi2_be_soc_sd_pad_ops = {
+ .link_validate = __subdev_link_validate,
+ .get_fmt = ipu_isys_subdev_get_ffmt,
+ .set_fmt = ipu_isys_subdev_set_ffmt,
+ .get_selection = ipu_isys_subdev_get_sel,
+ .set_selection = ipu_isys_csi2_be_soc_set_sel,
+ .enum_mbus_code = ipu_isys_subdev_enum_mbus_code,
+};
+
+static struct v4l2_subdev_ops csi2_be_soc_sd_ops = {
+ .core = &csi2_be_soc_sd_core_ops,
+ .video = &csi2_be_soc_sd_video_ops,
+ .pad = &csi2_be_soc_sd_pad_ops,
+};
+
+static struct media_entity_operations csi2_be_soc_entity_ops = {
+ .link_validate = v4l2_subdev_link_validate,
+};
+
+static void csi2_be_soc_set_ffmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct v4l2_mbus_framefmt *ffmt =
+ __ipu_isys_get_ffmt(sd, sd_state, fmt->pad,
+ fmt->which);
+
+ if (sd->entity.pads[fmt->pad].flags & MEDIA_PAD_FL_SINK) {
+ if (fmt->format.field != V4L2_FIELD_ALTERNATE)
+ fmt->format.field = V4L2_FIELD_NONE;
+ *ffmt = fmt->format;
+
+ ipu_isys_subdev_fmt_propagate(sd, sd_state, &fmt->format,
+ NULL,
+ IPU_ISYS_SUBDEV_PROP_TGT_SINK_FMT,
+ fmt->pad, fmt->which);
+ } else if (sd->entity.pads[fmt->pad].flags & MEDIA_PAD_FL_SOURCE) {
+ struct v4l2_mbus_framefmt *sink_ffmt;
+ struct v4l2_rect *r = __ipu_isys_get_selection(sd, sd_state,
+ V4L2_SEL_TGT_CROP, fmt->pad, fmt->which);
+ struct ipu_isys_subdev *asd = to_ipu_isys_subdev(sd);
+ u32 code;
+ int idx;
+
+ sink_ffmt = __ipu_isys_get_ffmt(sd, sd_state, 0, fmt->which);
+ code = sink_ffmt->code;
+ idx = get_supported_code_index(code);
+
+ if (asd->valid_tgts[fmt->pad].crop && idx >= 0) {
+ int crop_info = 0;
+
+ /* Only croping odd line at top side. */
+ if (r->top & 1)
+ crop_info |= CSI2_BE_CROP_VER;
+
+ code = csi2_be_soc_supported_raw_bayer_codes_pad
+ [((idx & CSI2_BE_CROP_MASK) ^ crop_info)
+ + (idx & ~CSI2_BE_CROP_MASK)];
+
+ }
+ ffmt->code = code;
+ ffmt->width = r->width;
+ ffmt->height = r->height;
+ ffmt->field = sink_ffmt->field;
+
+ }
+}
+
+void ipu_isys_csi2_be_soc_cleanup(struct ipu_isys_csi2_be_soc *csi2_be_soc)
+{
+ v4l2_device_unregister_subdev(&csi2_be_soc->asd.sd);
+ ipu_isys_subdev_cleanup(&csi2_be_soc->asd);
+ v4l2_ctrl_handler_free(&csi2_be_soc->av.ctrl_handler);
+ ipu_isys_video_cleanup(&csi2_be_soc->av);
+}
+
+int ipu_isys_csi2_be_soc_init(struct ipu_isys_csi2_be_soc *csi2_be_soc,
+ struct ipu_isys *isys, int index)
+{
+ struct v4l2_subdev_format fmt = {
+ .which = V4L2_SUBDEV_FORMAT_ACTIVE,
+ .pad = CSI2_BE_SOC_PAD_SINK,
+ .format = {
+ .width = 4096,
+ .height = 3072,
+ },
+ };
+ int rval, i;
+
+ csi2_be_soc->asd.sd.entity.ops = &csi2_be_soc_entity_ops;
+ csi2_be_soc->asd.isys = isys;
+
+ rval = ipu_isys_subdev_init(&csi2_be_soc->asd,
+ &csi2_be_soc_sd_ops, 0,
+ NR_OF_CSI2_BE_SOC_PADS,
+ NR_OF_CSI2_BE_SOC_SOURCE_PADS,
+ NR_OF_CSI2_BE_SOC_SINK_PADS, 0);
+ if (rval)
+ goto fail;
+
+ csi2_be_soc->asd.pad[CSI2_BE_SOC_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
+ csi2_be_soc->asd.pad[CSI2_BE_SOC_PAD_SOURCE].flags =
+ MEDIA_PAD_FL_SOURCE;
+ csi2_be_soc->asd.valid_tgts[CSI2_BE_SOC_PAD_SOURCE].crop = true;
+
+ for (i = 0; i < NR_OF_CSI2_BE_SOC_PADS; i++)
+ csi2_be_soc_supported_codes[i] =
+ csi2_be_soc_supported_codes_pad;
+ csi2_be_soc->asd.supported_codes = csi2_be_soc_supported_codes;
+ csi2_be_soc->asd.be_mode = IPU_BE_SOC;
+ csi2_be_soc->asd.isl_mode = IPU_ISL_OFF;
+ csi2_be_soc->asd.set_ffmt = csi2_be_soc_set_ffmt;
+
+ fmt.pad = CSI2_BE_SOC_PAD_SINK;
+ ipu_isys_subdev_set_ffmt(&csi2_be_soc->asd.sd, NULL, &fmt);
+ fmt.pad = CSI2_BE_SOC_PAD_SOURCE;
+ ipu_isys_subdev_set_ffmt(&csi2_be_soc->asd.sd, NULL, &fmt);
+ csi2_be_soc->asd.sd.internal_ops = &csi2_be_soc_sd_internal_ops;
+
+ snprintf(csi2_be_soc->asd.sd.name, sizeof(csi2_be_soc->asd.sd.name),
+ IPU_ISYS_ENTITY_PREFIX " CSI2 BE SOC %d", index);
+ v4l2_set_subdevdata(&csi2_be_soc->asd.sd, &csi2_be_soc->asd);
+
+ rval = v4l2_device_register_subdev(&isys->v4l2_dev,
+ &csi2_be_soc->asd.sd);
+ if (rval) {
+ dev_info(&isys->adev->dev, "can't register v4l2 subdev\n");
+ goto fail;
+ }
+
+ snprintf(csi2_be_soc->av.vdev.name, sizeof(csi2_be_soc->av.vdev.name),
+ IPU_ISYS_ENTITY_PREFIX " BE SOC capture %d", index);
+
+ /*
+ * Pin type could be overwritten for YUV422 to I420 case, at
+ * set_format phase
+ */
+ csi2_be_soc->av.aq.css_pin_type = IPU_FW_ISYS_PIN_TYPE_RAW_SOC;
+ csi2_be_soc->av.isys = isys;
+ csi2_be_soc->av.pfmts = ipu_isys_pfmts_be_soc;
+ csi2_be_soc->av.try_fmt_vid_mplane =
+ ipu_isys_video_try_fmt_vid_mplane_default;
+ csi2_be_soc->av.prepare_fw_stream =
+ ipu_isys_prepare_fw_cfg_default;
+ csi2_be_soc->av.aq.buf_prepare = ipu_isys_buf_prepare;
+ csi2_be_soc->av.aq.fill_frame_buff_set_pin =
+ ipu_isys_buffer_to_fw_frame_buff_pin;
+ csi2_be_soc->av.aq.link_fmt_validate = ipu_isys_link_fmt_validate;
+ csi2_be_soc->av.aq.vbq.buf_struct_size =
+ sizeof(struct ipu_isys_video_buffer);
+
+ /* create v4l2 ctrl for be-soc video node */
+ rval = v4l2_ctrl_handler_init(&csi2_be_soc->av.ctrl_handler, 0);
+ if (rval) {
+ dev_err(&isys->adev->dev,
+ "failed to init v4l2 ctrl handler for be_soc\n");
+ goto fail;
+ }
+
+ csi2_be_soc->av.compression_ctrl =
+ v4l2_ctrl_new_custom(&csi2_be_soc->av.ctrl_handler,
+ &compression_ctrl_cfg, NULL);
+ if (!csi2_be_soc->av.compression_ctrl) {
+ dev_err(&isys->adev->dev,
+ "failed to create BE-SOC cmprs ctrl\n");
+ goto fail;
+ }
+ csi2_be_soc->av.compression = 0;
+ csi2_be_soc->av.vdev.ctrl_handler =
+ &csi2_be_soc->av.ctrl_handler;
+
+ rval = ipu_isys_video_init(&csi2_be_soc->av,
+ &csi2_be_soc->asd.sd.entity,
+ CSI2_BE_SOC_PAD_SOURCE,
+ MEDIA_PAD_FL_SINK,
+ MEDIA_LNK_FL_DYNAMIC);
+ if (rval) {
+ dev_info(&isys->adev->dev, "can't init video node\n");
+ goto fail;
+ }
+
+ return 0;
+
+fail:
+ ipu_isys_csi2_be_soc_cleanup(csi2_be_soc);
+
+ return rval;
+}
diff --git a/drivers/media/pci/intel/ipu-isys-csi2-be.c b/drivers/media/pci/intel/ipu-isys-csi2-be.c
new file mode 100644
index 0000000000000..1ef87fe3dee88
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-isys-csi2-be.c
@@ -0,0 +1,325 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2014 - 2020 Intel Corporation
+
+#include <linux/device.h>
+#include <linux/module.h>
+
+#include <media/ipu-isys.h>
+#include <media/media-entity.h>
+#include <media/v4l2-device.h>
+
+#include "ipu.h"
+#include "ipu-bus.h"
+#include "ipu-isys.h"
+#include "ipu-isys-csi2-be.h"
+#include "ipu-isys-subdev.h"
+#include "ipu-isys-video.h"
+
+/*
+ * Raw bayer format pixel order MUST BE MAINTAINED in groups of four codes.
+ * Otherwise pixel order calculation below WILL BREAK!
+ */
+static const u32 csi2_be_supported_codes_pad[] = {
+ MEDIA_BUS_FMT_SBGGR12_1X12,
+ MEDIA_BUS_FMT_SGBRG12_1X12,
+ MEDIA_BUS_FMT_SGRBG12_1X12,
+ MEDIA_BUS_FMT_SRGGB12_1X12,
+ MEDIA_BUS_FMT_SBGGR10_1X10,
+ MEDIA_BUS_FMT_SGBRG10_1X10,
+ MEDIA_BUS_FMT_SGRBG10_1X10,
+ MEDIA_BUS_FMT_SRGGB10_1X10,
+ MEDIA_BUS_FMT_SBGGR8_1X8,
+ MEDIA_BUS_FMT_SGBRG8_1X8,
+ MEDIA_BUS_FMT_SGRBG8_1X8,
+ MEDIA_BUS_FMT_SRGGB8_1X8,
+ 0,
+};
+
+static const u32 *csi2_be_supported_codes[] = {
+ csi2_be_supported_codes_pad,
+ csi2_be_supported_codes_pad,
+};
+
+static struct v4l2_subdev_internal_ops csi2_be_sd_internal_ops = {
+ .open = ipu_isys_subdev_open,
+ .close = ipu_isys_subdev_close,
+};
+
+static const struct v4l2_subdev_core_ops csi2_be_sd_core_ops = {
+};
+
+static const struct v4l2_ctrl_config compression_ctrl_cfg = {
+ .ops = NULL,
+ .id = V4L2_CID_IPU_ISYS_COMPRESSION,
+ .name = "ISYS CSI-BE compression",
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .min = 0,
+ .max = 1,
+ .step = 1,
+ .def = 0,
+};
+
+static int set_stream(struct v4l2_subdev *sd, int enable)
+{
+ return 0;
+}
+
+static const struct v4l2_subdev_video_ops csi2_be_sd_video_ops = {
+ .s_stream = set_stream,
+};
+
+static int __subdev_link_validate(struct v4l2_subdev *sd,
+ struct media_link *link,
+ struct v4l2_subdev_format *source_fmt,
+ struct v4l2_subdev_format *sink_fmt)
+{
+ struct ipu_isys_pipeline *ip = container_of(sd->entity.pipe,
+ struct ipu_isys_pipeline,
+ pipe);
+
+ ip->csi2_be = to_ipu_isys_csi2_be(sd);
+ return ipu_isys_subdev_link_validate(sd, link, source_fmt, sink_fmt);
+}
+
+static int get_supported_code_index(u32 code)
+{
+ int i;
+
+ for (i = 0; csi2_be_supported_codes_pad[i]; i++) {
+ if (csi2_be_supported_codes_pad[i] == code)
+ return i;
+ }
+ return -EINVAL;
+}
+
+static int ipu_isys_csi2_be_set_sel(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_selection *sel)
+{
+ struct ipu_isys_subdev *asd = to_ipu_isys_subdev(sd);
+ struct media_pad *pad = &asd->sd.entity.pads[sel->pad];
+
+ if (sel->target == V4L2_SEL_TGT_CROP &&
+ pad->flags & MEDIA_PAD_FL_SOURCE &&
+ asd->valid_tgts[CSI2_BE_PAD_SOURCE].crop) {
+ struct v4l2_mbus_framefmt *ffmt =
+ __ipu_isys_get_ffmt(sd, sd_state, sel->pad, sel->which);
+ struct v4l2_rect *r = __ipu_isys_get_selection
+ (sd, sd_state, sel->target, CSI2_BE_PAD_SINK, sel->which);
+
+ if (get_supported_code_index(ffmt->code) < 0) {
+ /* Non-bayer formats can't be single line cropped */
+ sel->r.left &= ~1;
+ sel->r.top &= ~1;
+
+ /* Non-bayer formats can't pe padded at all */
+ sel->r.width = clamp(sel->r.width,
+ IPU_ISYS_MIN_WIDTH, r->width);
+ } else {
+ sel->r.width = clamp(sel->r.width,
+ IPU_ISYS_MIN_WIDTH,
+ IPU_ISYS_MAX_WIDTH);
+ }
+
+ /*
+ * Vertical padding is not supported, height is
+ * restricted by sink pad resolution.
+ */
+ sel->r.height = clamp(sel->r.height, IPU_ISYS_MIN_HEIGHT,
+ r->height);
+ *__ipu_isys_get_selection(sd, sd_state, sel->target,
+ sel->pad, sel->which) = sel->r;
+ ipu_isys_subdev_fmt_propagate
+ (sd, sd_state, NULL, &sel->r,
+ IPU_ISYS_SUBDEV_PROP_TGT_SOURCE_CROP,
+ sel->pad, sel->which);
+ return 0;
+ }
+ return ipu_isys_subdev_set_sel(sd, sd_state, sel);
+}
+
+static const struct v4l2_subdev_pad_ops csi2_be_sd_pad_ops = {
+ .link_validate = __subdev_link_validate,
+ .get_fmt = ipu_isys_subdev_get_ffmt,
+ .set_fmt = ipu_isys_subdev_set_ffmt,
+ .get_selection = ipu_isys_subdev_get_sel,
+ .set_selection = ipu_isys_csi2_be_set_sel,
+ .enum_mbus_code = ipu_isys_subdev_enum_mbus_code,
+};
+
+static struct v4l2_subdev_ops csi2_be_sd_ops = {
+ .core = &csi2_be_sd_core_ops,
+ .video = &csi2_be_sd_video_ops,
+ .pad = &csi2_be_sd_pad_ops,
+};
+
+static struct media_entity_operations csi2_be_entity_ops = {
+ .link_validate = v4l2_subdev_link_validate,
+};
+
+static void csi2_be_set_ffmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct ipu_isys_csi2 *csi2 = to_ipu_isys_csi2(sd);
+ struct v4l2_mbus_framefmt *ffmt =
+ __ipu_isys_get_ffmt(sd, sd_state, fmt->pad, fmt->which);
+
+ switch (fmt->pad) {
+ case CSI2_BE_PAD_SINK:
+ if (fmt->format.field != V4L2_FIELD_ALTERNATE)
+ fmt->format.field = V4L2_FIELD_NONE;
+ *ffmt = fmt->format;
+
+ ipu_isys_subdev_fmt_propagate
+ (sd, sd_state, &fmt->format, NULL,
+ IPU_ISYS_SUBDEV_PROP_TGT_SINK_FMT, fmt->pad, fmt->which);
+ return;
+ case CSI2_BE_PAD_SOURCE: {
+ struct v4l2_mbus_framefmt *sink_ffmt =
+ __ipu_isys_get_ffmt(sd, sd_state, CSI2_BE_PAD_SINK,
+ fmt->which);
+ struct v4l2_rect *r =
+ __ipu_isys_get_selection(sd, sd_state, V4L2_SEL_TGT_CROP,
+ CSI2_BE_PAD_SOURCE,
+ fmt->which);
+ struct ipu_isys_subdev *asd = to_ipu_isys_subdev(sd);
+ u32 code = sink_ffmt->code;
+ int idx = get_supported_code_index(code);
+
+ if (asd->valid_tgts[CSI2_BE_PAD_SOURCE].crop && idx >= 0) {
+ int crop_info = 0;
+
+ if (r->top & 1)
+ crop_info |= CSI2_BE_CROP_VER;
+ if (r->left & 1)
+ crop_info |= CSI2_BE_CROP_HOR;
+ code = csi2_be_supported_codes_pad
+ [((idx & CSI2_BE_CROP_MASK) ^ crop_info)
+ + (idx & ~CSI2_BE_CROP_MASK)];
+ }
+ ffmt->width = r->width;
+ ffmt->height = r->height;
+ ffmt->code = code;
+ ffmt->field = sink_ffmt->field;
+ return;
+ }
+ default:
+ dev_err(&csi2->isys->adev->dev, "Unknown pad type\n");
+ WARN_ON(1);
+ }
+}
+
+void ipu_isys_csi2_be_cleanup(struct ipu_isys_csi2_be *csi2_be)
+{
+ v4l2_ctrl_handler_free(&csi2_be->av.ctrl_handler);
+ v4l2_device_unregister_subdev(&csi2_be->asd.sd);
+ ipu_isys_subdev_cleanup(&csi2_be->asd);
+ ipu_isys_video_cleanup(&csi2_be->av);
+}
+
+int ipu_isys_csi2_be_init(struct ipu_isys_csi2_be *csi2_be,
+ struct ipu_isys *isys)
+{
+ struct v4l2_subdev_format fmt = {
+ .which = V4L2_SUBDEV_FORMAT_ACTIVE,
+ .pad = CSI2_BE_PAD_SINK,
+ .format = {
+ .width = 4096,
+ .height = 3072,
+ },
+ };
+ struct v4l2_subdev_selection sel = {
+ .which = V4L2_SUBDEV_FORMAT_ACTIVE,
+ .pad = CSI2_BE_PAD_SOURCE,
+ .target = V4L2_SEL_TGT_CROP,
+ .r = {
+ .width = fmt.format.width,
+ .height = fmt.format.height,
+ },
+ };
+ int rval;
+
+ csi2_be->asd.sd.entity.ops = &csi2_be_entity_ops;
+ csi2_be->asd.isys = isys;
+
+ rval = ipu_isys_subdev_init(&csi2_be->asd, &csi2_be_sd_ops, 0,
+ NR_OF_CSI2_BE_PADS,
+ NR_OF_CSI2_BE_SOURCE_PADS,
+ NR_OF_CSI2_BE_SINK_PADS, 0);
+ if (rval)
+ goto fail;
+
+ csi2_be->asd.pad[CSI2_BE_PAD_SINK].flags = MEDIA_PAD_FL_SINK
+ | MEDIA_PAD_FL_MUST_CONNECT;
+ csi2_be->asd.pad[CSI2_BE_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
+ csi2_be->asd.valid_tgts[CSI2_BE_PAD_SOURCE].crop = true;
+ csi2_be->asd.set_ffmt = csi2_be_set_ffmt;
+
+ BUILD_BUG_ON(ARRAY_SIZE(csi2_be_supported_codes) != NR_OF_CSI2_BE_PADS);
+ csi2_be->asd.supported_codes = csi2_be_supported_codes;
+ csi2_be->asd.be_mode = IPU_BE_RAW;
+ csi2_be->asd.isl_mode = IPU_ISL_CSI2_BE;
+
+ ipu_isys_subdev_set_ffmt(&csi2_be->asd.sd, NULL, &fmt);
+ ipu_isys_csi2_be_set_sel(&csi2_be->asd.sd, NULL, &sel);
+
+ csi2_be->asd.sd.internal_ops = &csi2_be_sd_internal_ops;
+ snprintf(csi2_be->asd.sd.name, sizeof(csi2_be->asd.sd.name),
+ IPU_ISYS_ENTITY_PREFIX " CSI2 BE");
+ snprintf(csi2_be->av.vdev.name, sizeof(csi2_be->av.vdev.name),
+ IPU_ISYS_ENTITY_PREFIX " CSI2 BE capture");
+ csi2_be->av.aq.css_pin_type = IPU_FW_ISYS_PIN_TYPE_RAW_NS;
+ v4l2_set_subdevdata(&csi2_be->asd.sd, &csi2_be->asd);
+ rval = v4l2_device_register_subdev(&isys->v4l2_dev, &csi2_be->asd.sd);
+ if (rval) {
+ dev_info(&isys->adev->dev, "can't register v4l2 subdev\n");
+ goto fail;
+ }
+
+ csi2_be->av.isys = isys;
+ csi2_be->av.pfmts = ipu_isys_pfmts;
+ csi2_be->av.try_fmt_vid_mplane =
+ ipu_isys_video_try_fmt_vid_mplane_default;
+ csi2_be->av.prepare_fw_stream =
+ ipu_isys_prepare_fw_cfg_default;
+ csi2_be->av.aq.buf_prepare = ipu_isys_buf_prepare;
+ csi2_be->av.aq.fill_frame_buff_set_pin =
+ ipu_isys_buffer_to_fw_frame_buff_pin;
+ csi2_be->av.aq.link_fmt_validate = ipu_isys_link_fmt_validate;
+ csi2_be->av.aq.vbq.buf_struct_size =
+ sizeof(struct ipu_isys_video_buffer);
+
+ /* create v4l2 ctrl for csi-be video node */
+ rval = v4l2_ctrl_handler_init(&csi2_be->av.ctrl_handler, 0);
+ if (rval) {
+ dev_err(&isys->adev->dev,
+ "failed to init v4l2 ctrl handler for csi2_be\n");
+ goto fail;
+ }
+
+ csi2_be->av.compression_ctrl =
+ v4l2_ctrl_new_custom(&csi2_be->av.ctrl_handler,
+ &compression_ctrl_cfg, NULL);
+ if (!csi2_be->av.compression_ctrl) {
+ dev_err(&isys->adev->dev,
+ "failed to create CSI-BE cmprs ctrl\n");
+ goto fail;
+ }
+ csi2_be->av.compression = 0;
+ csi2_be->av.vdev.ctrl_handler = &csi2_be->av.ctrl_handler;
+
+ rval = ipu_isys_video_init(&csi2_be->av, &csi2_be->asd.sd.entity,
+ CSI2_BE_PAD_SOURCE, MEDIA_PAD_FL_SINK, 0);
+ if (rval) {
+ dev_info(&isys->adev->dev, "can't init video node\n");
+ goto fail;
+ }
+
+ return 0;
+
+fail:
+ ipu_isys_csi2_be_cleanup(csi2_be);
+
+ return rval;
+}
diff --git a/drivers/media/pci/intel/ipu-isys-csi2-be.h b/drivers/media/pci/intel/ipu-isys-csi2-be.h
new file mode 100644
index 0000000000000..a9f5880f33946
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-isys-csi2-be.h
@@ -0,0 +1,63 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2014 - 2020 Intel Corporation */
+
+#ifndef IPU_ISYS_CSI2_BE_H
+#define IPU_ISYS_CSI2_BE_H
+
+#include <media/media-entity.h>
+#include <media/v4l2-device.h>
+
+#include "ipu-isys-queue.h"
+#include "ipu-isys-subdev.h"
+#include "ipu-isys-video.h"
+#include "ipu-platform-isys.h"
+
+struct ipu_isys_csi2_be_pdata;
+struct ipu_isys;
+
+#define CSI2_BE_PAD_SINK 0
+#define CSI2_BE_PAD_SOURCE 1
+
+#define NR_OF_CSI2_BE_PADS 2
+#define NR_OF_CSI2_BE_SOURCE_PADS 1
+#define NR_OF_CSI2_BE_SINK_PADS 1
+
+#define NR_OF_CSI2_BE_SOC_SOURCE_PADS 1
+#define NR_OF_CSI2_BE_SOC_SINK_PADS 1
+#define CSI2_BE_SOC_PAD_SINK 0
+#define CSI2_BE_SOC_PAD_SOURCE 1
+#define NR_OF_CSI2_BE_SOC_PADS \
+ (NR_OF_CSI2_BE_SOC_SOURCE_PADS + NR_OF_CSI2_BE_SOC_SINK_PADS)
+
+#define CSI2_BE_CROP_HOR BIT(0)
+#define CSI2_BE_CROP_VER BIT(1)
+#define CSI2_BE_CROP_MASK (CSI2_BE_CROP_VER | CSI2_BE_CROP_HOR)
+
+/*
+ * struct ipu_isys_csi2_be
+ */
+struct ipu_isys_csi2_be {
+ struct ipu_isys_csi2_be_pdata *pdata;
+ struct ipu_isys_subdev asd;
+ struct ipu_isys_video av;
+};
+
+struct ipu_isys_csi2_be_soc {
+ struct ipu_isys_csi2_be_pdata *pdata;
+ struct ipu_isys_subdev asd;
+ struct ipu_isys_video av;
+};
+
+#define to_ipu_isys_csi2_be(sd) \
+ container_of(to_ipu_isys_subdev(sd), \
+ struct ipu_isys_csi2_be, asd)
+
+#define to_ipu_isys_csi2_be_soc(sd) \
+ container_of(to_ipu_isys_subdev(sd), \
+ struct ipu_isys_csi2_be_soc, asd)
+
+int ipu_isys_csi2_be_soc_init(struct ipu_isys_csi2_be_soc *csi2_be_soc,
+ struct ipu_isys *isys, int index);
+void ipu_isys_csi2_be_soc_cleanup(struct ipu_isys_csi2_be_soc *csi2_be);
+
+#endif /* IPU_ISYS_CSI2_BE_H */
diff --git a/drivers/media/pci/intel/ipu-isys-csi2.c b/drivers/media/pci/intel/ipu-isys-csi2.c
new file mode 100644
index 0000000000000..e206200b6f4d9
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-isys-csi2.c
@@ -0,0 +1,655 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2013 - 2021 Intel Corporation
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/vsc.h>
+
+#include <media/ipu-isys.h>
+#include <media/media-entity.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-event.h>
+
+#include "ipu.h"
+#include "ipu-bus.h"
+#include "ipu-buttress.h"
+#include "ipu-isys.h"
+#include "ipu-isys-subdev.h"
+#include "ipu-isys-video.h"
+#include "ipu-platform-regs.h"
+
+static const u32 csi2_supported_codes_pad_sink[] = {
+ MEDIA_BUS_FMT_Y10_1X10,
+ MEDIA_BUS_FMT_RGB565_1X16,
+ MEDIA_BUS_FMT_RGB888_1X24,
+ MEDIA_BUS_FMT_UYVY8_1X16,
+ MEDIA_BUS_FMT_YUYV8_1X16,
+ MEDIA_BUS_FMT_YUYV10_1X20,
+ MEDIA_BUS_FMT_SBGGR10_1X10,
+ MEDIA_BUS_FMT_SGBRG10_1X10,
+ MEDIA_BUS_FMT_SGRBG10_1X10,
+ MEDIA_BUS_FMT_SRGGB10_1X10,
+ MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8,
+ MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8,
+ MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8,
+ MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8,
+ MEDIA_BUS_FMT_SBGGR12_1X12,
+ MEDIA_BUS_FMT_SGBRG12_1X12,
+ MEDIA_BUS_FMT_SGRBG12_1X12,
+ MEDIA_BUS_FMT_SRGGB12_1X12,
+ MEDIA_BUS_FMT_SBGGR8_1X8,
+ MEDIA_BUS_FMT_SGBRG8_1X8,
+ MEDIA_BUS_FMT_SGRBG8_1X8,
+ MEDIA_BUS_FMT_SRGGB8_1X8,
+ 0,
+};
+
+static const u32 csi2_supported_codes_pad_source[] = {
+ MEDIA_BUS_FMT_Y10_1X10,
+ MEDIA_BUS_FMT_RGB565_1X16,
+ MEDIA_BUS_FMT_RGB888_1X24,
+ MEDIA_BUS_FMT_UYVY8_1X16,
+ MEDIA_BUS_FMT_YUYV8_1X16,
+ MEDIA_BUS_FMT_YUYV10_1X20,
+ MEDIA_BUS_FMT_SBGGR10_1X10,
+ MEDIA_BUS_FMT_SGBRG10_1X10,
+ MEDIA_BUS_FMT_SGRBG10_1X10,
+ MEDIA_BUS_FMT_SRGGB10_1X10,
+ MEDIA_BUS_FMT_SBGGR12_1X12,
+ MEDIA_BUS_FMT_SGBRG12_1X12,
+ MEDIA_BUS_FMT_SGRBG12_1X12,
+ MEDIA_BUS_FMT_SRGGB12_1X12,
+ MEDIA_BUS_FMT_SBGGR8_1X8,
+ MEDIA_BUS_FMT_SGBRG8_1X8,
+ MEDIA_BUS_FMT_SGRBG8_1X8,
+ MEDIA_BUS_FMT_SRGGB8_1X8,
+ 0,
+};
+
+static const u32 *csi2_supported_codes[NR_OF_CSI2_PADS];
+
+static struct v4l2_subdev_internal_ops csi2_sd_internal_ops = {
+ .open = ipu_isys_subdev_open,
+ .close = ipu_isys_subdev_close,
+};
+
+int ipu_isys_csi2_get_link_freq(struct ipu_isys_csi2 *csi2, __s64 *link_freq)
+{
+ struct ipu_isys_pipeline *pipe = container_of(csi2->asd.sd.entity.pipe,
+ struct ipu_isys_pipeline,
+ pipe);
+ struct v4l2_subdev *ext_sd =
+ media_entity_to_v4l2_subdev(pipe->external->entity);
+ struct v4l2_ext_control c = {.id = V4L2_CID_LINK_FREQ, };
+ struct v4l2_ext_controls cs = {.count = 1,
+ .controls = &c,
+ };
+ struct v4l2_querymenu qm = {.id = c.id, };
+ int rval;
+
+ if (!ext_sd) {
+ WARN_ON(1);
+ return -ENODEV;
+ }
+ rval = v4l2_g_ext_ctrls(ext_sd->ctrl_handler,
+ ext_sd->devnode,
+ ext_sd->v4l2_dev->mdev,
+ &cs);
+ if (rval) {
+ dev_info(&csi2->isys->adev->dev, "can't get link frequency\n");
+ return rval;
+ }
+
+ qm.index = c.value;
+
+ rval = v4l2_querymenu(ext_sd->ctrl_handler, &qm);
+ if (rval) {
+ dev_info(&csi2->isys->adev->dev, "can't get menu item\n");
+ return rval;
+ }
+
+ dev_dbg(&csi2->isys->adev->dev, "%s: link frequency %lld\n", __func__,
+ qm.value);
+
+ if (!qm.value)
+ return -EINVAL;
+ *link_freq = qm.value;
+ return 0;
+}
+
+static int subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
+ struct v4l2_event_subscription *sub)
+{
+ struct ipu_isys_csi2 *csi2 = to_ipu_isys_csi2(sd);
+
+ dev_dbg(&csi2->isys->adev->dev, "subscribe event(type %u id %u)\n",
+ sub->type, sub->id);
+
+ switch (sub->type) {
+ case V4L2_EVENT_FRAME_SYNC:
+ return v4l2_event_subscribe(fh, sub, 10, NULL);
+ case V4L2_EVENT_CTRL:
+ return v4l2_ctrl_subscribe_event(fh, sub);
+ default:
+ return -EINVAL;
+ }
+}
+
+static const struct v4l2_subdev_core_ops csi2_sd_core_ops = {
+ .subscribe_event = subscribe_event,
+ .unsubscribe_event = v4l2_event_subdev_unsubscribe,
+};
+
+/*
+ * The input system CSI2+ receiver has several
+ * parameters affecting the receiver timings. These depend
+ * on the MIPI bus frequency F in Hz (sensor transmitter rate)
+ * as follows:
+ * register value = (A/1e9 + B * UI) / COUNT_ACC
+ * where
+ * UI = 1 / (2 * F) in seconds
+ * COUNT_ACC = counter accuracy in seconds
+ * For legacy IPU, COUNT_ACC = 0.125 ns
+ *
+ * A and B are coefficients from the table below,
+ * depending whether the register minimum or maximum value is
+ * calculated.
+ * Minimum Maximum
+ * Clock lane A B A B
+ * reg_rx_csi_dly_cnt_termen_clane 0 0 38 0
+ * reg_rx_csi_dly_cnt_settle_clane 95 -8 300 -16
+ * Data lanes
+ * reg_rx_csi_dly_cnt_termen_dlane0 0 0 35 4
+ * reg_rx_csi_dly_cnt_settle_dlane0 85 -2 145 -6
+ * reg_rx_csi_dly_cnt_termen_dlane1 0 0 35 4
+ * reg_rx_csi_dly_cnt_settle_dlane1 85 -2 145 -6
+ * reg_rx_csi_dly_cnt_termen_dlane2 0 0 35 4
+ * reg_rx_csi_dly_cnt_settle_dlane2 85 -2 145 -6
+ * reg_rx_csi_dly_cnt_termen_dlane3 0 0 35 4
+ * reg_rx_csi_dly_cnt_settle_dlane3 85 -2 145 -6
+ *
+ * We use the minimum values of both A and B.
+ */
+
+#define DIV_SHIFT 8
+
+static uint32_t calc_timing(s32 a, int32_t b, int64_t link_freq, int32_t accinv)
+{
+ return accinv * a + (accinv * b * (500000000 >> DIV_SHIFT)
+ / (int32_t)(link_freq >> DIV_SHIFT));
+}
+
+static int
+ipu_isys_csi2_calc_timing(struct ipu_isys_csi2 *csi2,
+ struct ipu_isys_csi2_timing *timing, uint32_t accinv)
+{
+ __s64 link_freq;
+ int rval;
+
+ rval = ipu_isys_csi2_get_link_freq(csi2, &link_freq);
+ if (rval)
+ return rval;
+
+ timing->ctermen = calc_timing(CSI2_CSI_RX_DLY_CNT_TERMEN_CLANE_A,
+ CSI2_CSI_RX_DLY_CNT_TERMEN_CLANE_B,
+ link_freq, accinv);
+ timing->csettle = calc_timing(CSI2_CSI_RX_DLY_CNT_SETTLE_CLANE_A,
+ CSI2_CSI_RX_DLY_CNT_SETTLE_CLANE_B,
+ link_freq, accinv);
+ dev_dbg(&csi2->isys->adev->dev, "ctermen %u\n", timing->ctermen);
+ dev_dbg(&csi2->isys->adev->dev, "csettle %u\n", timing->csettle);
+
+ timing->dtermen = calc_timing(CSI2_CSI_RX_DLY_CNT_TERMEN_DLANE_A,
+ CSI2_CSI_RX_DLY_CNT_TERMEN_DLANE_B,
+ link_freq, accinv);
+ timing->dsettle = calc_timing(CSI2_CSI_RX_DLY_CNT_SETTLE_DLANE_A,
+ CSI2_CSI_RX_DLY_CNT_SETTLE_DLANE_B,
+ link_freq, accinv);
+ dev_dbg(&csi2->isys->adev->dev, "dtermen %u\n", timing->dtermen);
+ dev_dbg(&csi2->isys->adev->dev, "dsettle %u\n", timing->dsettle);
+
+ return 0;
+}
+
+#define CSI2_ACCINV 8
+
+static int set_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct ipu_isys_csi2 *csi2 = to_ipu_isys_csi2(sd);
+ struct ipu_isys_pipeline *ip = container_of(sd->entity.pipe,
+ struct ipu_isys_pipeline,
+ pipe);
+ struct ipu_isys_csi2_config *cfg;
+ struct v4l2_subdev *ext_sd;
+ struct ipu_isys_csi2_timing timing = {0};
+ unsigned int nlanes;
+ int rval;
+ struct vsc_mipi_config conf;
+ struct vsc_camera_status status;
+ s64 link_freq;
+
+ dev_dbg(&csi2->isys->adev->dev, "csi2 s_stream %d\n", enable);
+
+ if (!ip->external->entity) {
+ WARN_ON(1);
+ return -ENODEV;
+ }
+ ext_sd = media_entity_to_v4l2_subdev(ip->external->entity);
+ cfg = v4l2_get_subdev_hostdata(ext_sd);
+
+ if (!enable) {
+ ipu_isys_csi2_set_stream(sd, timing, 0, enable);
+ rval = vsc_release_camera_sensor(&status);
+ if (rval && rval != -EAGAIN) {
+ dev_err(&csi2->isys->adev->dev,
+ "Release VSC failed.\n");
+ return rval;
+ }
+ return 0;
+ }
+
+ ip->has_sof = true;
+
+ nlanes = cfg->nlanes;
+
+ dev_dbg(&csi2->isys->adev->dev, "lane nr %d.\n", nlanes);
+
+ rval = ipu_isys_csi2_calc_timing(csi2, &timing, CSI2_ACCINV);
+ if (rval)
+ return rval;
+
+ rval = ipu_isys_csi2_set_stream(sd, timing, nlanes, enable);
+ rval = ipu_isys_csi2_get_link_freq(csi2, &link_freq);
+ if (rval)
+ return rval;
+
+ conf.lane_num = nlanes;
+ /* frequency unit 100k */
+ conf.freq = link_freq / 100000;
+ rval = vsc_acquire_camera_sensor(&conf, NULL, NULL, &status);
+ if (rval && rval != -EAGAIN) {
+ dev_err(&csi2->isys->adev->dev, "Acquire VSC failed.\n");
+ return rval;
+ } else {
+ return 0;
+ }
+
+ return rval;
+}
+
+static void csi2_capture_done(struct ipu_isys_pipeline *ip,
+ struct ipu_fw_isys_resp_info_abi *info)
+{
+ if (ip->interlaced && ip->isys->short_packet_source ==
+ IPU_ISYS_SHORT_PACKET_FROM_RECEIVER) {
+ struct ipu_isys_buffer *ib;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ip->short_packet_queue_lock, flags);
+ if (!list_empty(&ip->short_packet_active)) {
+ ib = list_last_entry(&ip->short_packet_active,
+ struct ipu_isys_buffer, head);
+ list_move(&ib->head, &ip->short_packet_incoming);
+ }
+ spin_unlock_irqrestore(&ip->short_packet_queue_lock, flags);
+ }
+}
+
+static int csi2_link_validate(struct media_link *link)
+{
+ struct ipu_isys_csi2 *csi2;
+ struct ipu_isys_pipeline *ip;
+ int rval;
+
+ if (!link->sink->entity ||
+ !link->sink->entity->pipe || !link->source->entity)
+ return -EINVAL;
+ csi2 =
+ to_ipu_isys_csi2(media_entity_to_v4l2_subdev(link->sink->entity));
+ ip = to_ipu_isys_pipeline(link->sink->entity->pipe);
+ csi2->receiver_errors = 0;
+ ip->csi2 = csi2;
+ ipu_isys_video_add_capture_done(to_ipu_isys_pipeline
+ (link->sink->entity->pipe),
+ csi2_capture_done);
+
+ rval = v4l2_subdev_link_validate(link);
+ if (rval)
+ return rval;
+
+ if (!v4l2_ctrl_g_ctrl(csi2->store_csi2_header)) {
+ struct media_pad *remote_pad =
+ media_entity_remote_pad(&csi2->asd.pad[CSI2_PAD_SOURCE]);
+
+ if (remote_pad &&
+ is_media_entity_v4l2_subdev(remote_pad->entity)) {
+ dev_err(&csi2->isys->adev->dev,
+ "CSI2 BE requires CSI2 headers.\n");
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static const struct v4l2_subdev_video_ops csi2_sd_video_ops = {
+ .s_stream = set_stream,
+};
+
+static int ipu_isys_csi2_get_fmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ return ipu_isys_subdev_get_ffmt(sd, sd_state, fmt);
+}
+
+static int ipu_isys_csi2_set_fmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ return ipu_isys_subdev_set_ffmt(sd, sd_state, fmt);
+}
+
+static int __subdev_link_validate(struct v4l2_subdev *sd,
+ struct media_link *link,
+ struct v4l2_subdev_format *source_fmt,
+ struct v4l2_subdev_format *sink_fmt)
+{
+ struct ipu_isys_pipeline *ip = container_of(sd->entity.pipe,
+ struct ipu_isys_pipeline,
+ pipe);
+
+ if (source_fmt->format.field == V4L2_FIELD_ALTERNATE)
+ ip->interlaced = true;
+
+ return ipu_isys_subdev_link_validate(sd, link, source_fmt, sink_fmt);
+}
+
+static const struct v4l2_subdev_pad_ops csi2_sd_pad_ops = {
+ .link_validate = __subdev_link_validate,
+ .get_fmt = ipu_isys_csi2_get_fmt,
+ .set_fmt = ipu_isys_csi2_set_fmt,
+ .enum_mbus_code = ipu_isys_subdev_enum_mbus_code,
+};
+
+static struct v4l2_subdev_ops csi2_sd_ops = {
+ .core = &csi2_sd_core_ops,
+ .video = &csi2_sd_video_ops,
+ .pad = &csi2_sd_pad_ops,
+};
+
+static struct media_entity_operations csi2_entity_ops = {
+ .link_validate = csi2_link_validate,
+};
+
+static void csi2_set_ffmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ enum isys_subdev_prop_tgt tgt = IPU_ISYS_SUBDEV_PROP_TGT_SINK_FMT;
+ struct v4l2_mbus_framefmt *ffmt =
+ __ipu_isys_get_ffmt(sd, sd_state, fmt->pad,
+ fmt->which);
+
+ if (fmt->format.field != V4L2_FIELD_ALTERNATE)
+ fmt->format.field = V4L2_FIELD_NONE;
+
+ if (fmt->pad == CSI2_PAD_SINK) {
+ *ffmt = fmt->format;
+ ipu_isys_subdev_fmt_propagate(sd, sd_state, &fmt->format, NULL,
+ tgt, fmt->pad, fmt->which);
+ return;
+ }
+
+ if (sd->entity.pads[fmt->pad].flags & MEDIA_PAD_FL_SOURCE) {
+ ffmt->width = fmt->format.width;
+ ffmt->height = fmt->format.height;
+ ffmt->field = fmt->format.field;
+ ffmt->code =
+ ipu_isys_subdev_code_to_uncompressed(fmt->format.code);
+ return;
+ }
+
+ WARN_ON(1);
+}
+
+static const struct ipu_isys_pixelformat *
+csi2_try_fmt(struct ipu_isys_video *av,
+ struct v4l2_pix_format_mplane *mpix)
+{
+ struct media_link *link = list_first_entry(&av->vdev.entity.links,
+ struct media_link, list);
+ struct v4l2_subdev *sd =
+ media_entity_to_v4l2_subdev(link->source->entity);
+ struct ipu_isys_csi2 *csi2;
+
+ if (!sd)
+ return NULL;
+
+ csi2 = to_ipu_isys_csi2(sd);
+
+ return ipu_isys_video_try_fmt_vid_mplane(av, mpix,
+ v4l2_ctrl_g_ctrl(csi2->store_csi2_header));
+}
+
+void ipu_isys_csi2_cleanup(struct ipu_isys_csi2 *csi2)
+{
+ if (!csi2->isys)
+ return;
+
+ v4l2_device_unregister_subdev(&csi2->asd.sd);
+ ipu_isys_subdev_cleanup(&csi2->asd);
+ csi2->isys = NULL;
+}
+
+static void csi_ctrl_init(struct v4l2_subdev *sd)
+{
+ struct ipu_isys_csi2 *csi2 = to_ipu_isys_csi2(sd);
+
+ static const struct v4l2_ctrl_config cfg = {
+ .id = V4L2_CID_IPU_STORE_CSI2_HEADER,
+ .name = "Store CSI-2 Headers",
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .min = 0,
+ .max = 1,
+ .step = 1,
+ .def = 1,
+ };
+
+ csi2->store_csi2_header = v4l2_ctrl_new_custom(&csi2->asd.ctrl_handler,
+ &cfg, NULL);
+}
+
+int ipu_isys_csi2_init(struct ipu_isys_csi2 *csi2,
+ struct ipu_isys *isys,
+ void __iomem *base, unsigned int index)
+{
+ struct v4l2_subdev_format fmt = {
+ .which = V4L2_SUBDEV_FORMAT_ACTIVE,
+ .pad = CSI2_PAD_SINK,
+ .format = {
+ .width = 4096,
+ .height = 3072,
+ },
+ };
+ int i, rval, src;
+
+ dev_dbg(&isys->adev->dev, "csi-%d base = 0x%lx\n", index,
+ (unsigned long)base);
+ csi2->isys = isys;
+ csi2->base = base;
+ csi2->index = index;
+
+ csi2->asd.sd.entity.ops = &csi2_entity_ops;
+ csi2->asd.ctrl_init = csi_ctrl_init;
+ csi2->asd.isys = isys;
+ init_completion(&csi2->eof_completion);
+ rval = ipu_isys_subdev_init(&csi2->asd, &csi2_sd_ops, 0,
+ NR_OF_CSI2_PADS,
+ NR_OF_CSI2_SOURCE_PADS,
+ NR_OF_CSI2_SINK_PADS,
+ 0);
+ if (rval)
+ goto fail;
+
+ csi2->asd.pad[CSI2_PAD_SINK].flags = MEDIA_PAD_FL_SINK
+ | MEDIA_PAD_FL_MUST_CONNECT;
+ csi2->asd.pad[CSI2_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
+
+ src = index;
+ csi2->asd.source = IPU_FW_ISYS_STREAM_SRC_CSI2_PORT0 + src;
+ csi2_supported_codes[CSI2_PAD_SINK] = csi2_supported_codes_pad_sink;
+
+ for (i = 0; i < NR_OF_CSI2_SOURCE_PADS; i++)
+ csi2_supported_codes[i + 1] = csi2_supported_codes_pad_source;
+ csi2->asd.supported_codes = csi2_supported_codes;
+ csi2->asd.set_ffmt = csi2_set_ffmt;
+
+ csi2->asd.sd.flags |= V4L2_SUBDEV_FL_HAS_EVENTS;
+ csi2->asd.sd.internal_ops = &csi2_sd_internal_ops;
+ snprintf(csi2->asd.sd.name, sizeof(csi2->asd.sd.name),
+ IPU_ISYS_ENTITY_PREFIX " CSI-2 %u", index);
+ v4l2_set_subdevdata(&csi2->asd.sd, &csi2->asd);
+
+ rval = v4l2_device_register_subdev(&isys->v4l2_dev, &csi2->asd.sd);
+ if (rval) {
+ dev_info(&isys->adev->dev, "can't register v4l2 subdev\n");
+ goto fail;
+ }
+
+ mutex_lock(&csi2->asd.mutex);
+ __ipu_isys_subdev_set_ffmt(&csi2->asd.sd, NULL, &fmt);
+ mutex_unlock(&csi2->asd.mutex);
+
+ return 0;
+
+fail:
+ ipu_isys_csi2_cleanup(csi2);
+
+ return rval;
+}
+
+void ipu_isys_csi2_sof_event(struct ipu_isys_csi2 *csi2)
+{
+ struct ipu_isys_pipeline *ip = NULL;
+ struct v4l2_event ev = {
+ .type = V4L2_EVENT_FRAME_SYNC,
+ };
+ struct video_device *vdev = csi2->asd.sd.devnode;
+ unsigned long flags;
+ unsigned int i;
+
+ spin_lock_irqsave(&csi2->isys->lock, flags);
+ csi2->in_frame = true;
+
+ for (i = 0; i < IPU_ISYS_MAX_STREAMS; i++) {
+ if (csi2->isys->pipes[i] &&
+ csi2->isys->pipes[i]->csi2 == csi2) {
+ ip = csi2->isys->pipes[i];
+ break;
+ }
+ }
+
+ /* Pipe already vanished */
+ if (!ip) {
+ spin_unlock_irqrestore(&csi2->isys->lock, flags);
+ return;
+ }
+
+ ev.u.frame_sync.frame_sequence = atomic_inc_return(&ip->sequence) - 1;
+ spin_unlock_irqrestore(&csi2->isys->lock, flags);
+
+ v4l2_event_queue(vdev, &ev);
+ dev_dbg(&csi2->isys->adev->dev,
+ "sof_event::csi2-%i sequence: %i\n",
+ csi2->index, ev.u.frame_sync.frame_sequence);
+}
+
+void ipu_isys_csi2_eof_event(struct ipu_isys_csi2 *csi2)
+{
+ struct ipu_isys_pipeline *ip = NULL;
+ unsigned long flags;
+ unsigned int i;
+ u32 frame_sequence;
+
+ spin_lock_irqsave(&csi2->isys->lock, flags);
+ csi2->in_frame = false;
+ if (csi2->wait_for_sync)
+ complete(&csi2->eof_completion);
+
+ for (i = 0; i < IPU_ISYS_MAX_STREAMS; i++) {
+ if (csi2->isys->pipes[i] &&
+ csi2->isys->pipes[i]->csi2 == csi2) {
+ ip = csi2->isys->pipes[i];
+ break;
+ }
+ }
+
+ if (ip) {
+ frame_sequence = atomic_read(&ip->sequence);
+ spin_unlock_irqrestore(&csi2->isys->lock, flags);
+
+ dev_dbg(&csi2->isys->adev->dev,
+ "eof_event::csi2-%i sequence: %i\n",
+ csi2->index, frame_sequence);
+ return;
+ }
+
+ spin_unlock_irqrestore(&csi2->isys->lock, flags);
+}
+
+/* Call this function only _after_ the sensor has been stopped */
+void ipu_isys_csi2_wait_last_eof(struct ipu_isys_csi2 *csi2)
+{
+ unsigned long flags, tout;
+
+ spin_lock_irqsave(&csi2->isys->lock, flags);
+
+ if (!csi2->in_frame) {
+ spin_unlock_irqrestore(&csi2->isys->lock, flags);
+ return;
+ }
+
+ reinit_completion(&csi2->eof_completion);
+ csi2->wait_for_sync = true;
+ spin_unlock_irqrestore(&csi2->isys->lock, flags);
+ tout = wait_for_completion_timeout(&csi2->eof_completion,
+ IPU_EOF_TIMEOUT_JIFFIES);
+ if (!tout)
+ dev_err(&csi2->isys->adev->dev,
+ "csi2-%d: timeout at sync to eof\n",
+ csi2->index);
+ csi2->wait_for_sync = false;
+}
+
+struct ipu_isys_buffer *
+ipu_isys_csi2_get_short_packet_buffer(struct ipu_isys_pipeline *ip,
+ struct ipu_isys_buffer_list *bl)
+{
+ struct ipu_isys_buffer *ib;
+ struct ipu_isys_private_buffer *pb;
+ struct ipu_isys_mipi_packet_header *ph;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ip->short_packet_queue_lock, flags);
+ if (list_empty(&ip->short_packet_incoming)) {
+ spin_unlock_irqrestore(&ip->short_packet_queue_lock, flags);
+ return NULL;
+ }
+ ib = list_last_entry(&ip->short_packet_incoming,
+ struct ipu_isys_buffer, head);
+ pb = ipu_isys_buffer_to_private_buffer(ib);
+ ph = (struct ipu_isys_mipi_packet_header *)pb->buffer;
+
+ /* Fill the packet header with magic number. */
+ ph->word_count = 0xffff;
+ ph->dtype = 0xff;
+
+ dma_sync_single_for_cpu(&ip->isys->adev->dev, pb->dma_addr,
+ sizeof(*ph), DMA_BIDIRECTIONAL);
+ spin_unlock_irqrestore(&ip->short_packet_queue_lock, flags);
+ list_move(&ib->head, &bl->head);
+
+ return ib;
+}
diff --git a/drivers/media/pci/intel/ipu-isys-csi2.h b/drivers/media/pci/intel/ipu-isys-csi2.h
new file mode 100644
index 0000000000000..04c45571e9e10
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-isys-csi2.h
@@ -0,0 +1,164 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2013 - 2020 Intel Corporation */
+
+#ifndef IPU_ISYS_CSI2_H
+#define IPU_ISYS_CSI2_H
+
+#include <media/media-entity.h>
+#include <media/v4l2-device.h>
+
+#include "ipu-isys-queue.h"
+#include "ipu-isys-subdev.h"
+#include "ipu-isys-video.h"
+#include "ipu-platform-isys.h"
+
+struct ipu_isys_csi2_timing;
+struct ipu_isys_csi2_pdata;
+struct ipu_isys;
+
+#define NR_OF_CSI2_SINK_PADS 1
+#define CSI2_PAD_SINK 0
+#define NR_OF_CSI2_SOURCE_PADS 1
+#define CSI2_PAD_SOURCE 1
+#define NR_OF_CSI2_PADS (NR_OF_CSI2_SINK_PADS + NR_OF_CSI2_SOURCE_PADS)
+
+#define IPU_ISYS_SHORT_PACKET_BUFFER_NUM VIDEO_MAX_FRAME
+#define IPU_ISYS_SHORT_PACKET_WIDTH 32
+#define IPU_ISYS_SHORT_PACKET_FRAME_PACKETS 2
+#define IPU_ISYS_SHORT_PACKET_EXTRA_PACKETS 64
+#define IPU_ISYS_SHORT_PACKET_UNITSIZE 8
+#define IPU_ISYS_SHORT_PACKET_GENERAL_DT 0
+#define IPU_ISYS_SHORT_PACKET_PT 0
+#define IPU_ISYS_SHORT_PACKET_FT 0
+
+#define IPU_ISYS_SHORT_PACKET_STRIDE \
+ (IPU_ISYS_SHORT_PACKET_WIDTH * \
+ IPU_ISYS_SHORT_PACKET_UNITSIZE)
+#define IPU_ISYS_SHORT_PACKET_NUM(num_lines) \
+ ((num_lines) * 2 + IPU_ISYS_SHORT_PACKET_FRAME_PACKETS + \
+ IPU_ISYS_SHORT_PACKET_EXTRA_PACKETS)
+#define IPU_ISYS_SHORT_PACKET_PKT_LINES(num_lines) \
+ DIV_ROUND_UP(IPU_ISYS_SHORT_PACKET_NUM(num_lines) * \
+ IPU_ISYS_SHORT_PACKET_UNITSIZE, \
+ IPU_ISYS_SHORT_PACKET_STRIDE)
+#define IPU_ISYS_SHORT_PACKET_BUF_SIZE(num_lines) \
+ (IPU_ISYS_SHORT_PACKET_WIDTH * \
+ IPU_ISYS_SHORT_PACKET_PKT_LINES(num_lines) * \
+ IPU_ISYS_SHORT_PACKET_UNITSIZE)
+
+#define IPU_ISYS_SHORT_PACKET_TRACE_MSG_NUMBER 256
+#define IPU_ISYS_SHORT_PACKET_TRACE_MSG_SIZE 16
+#define IPU_ISYS_SHORT_PACKET_TRACE_BUFFER_SIZE \
+ (IPU_ISYS_SHORT_PACKET_TRACE_MSG_NUMBER * \
+ IPU_ISYS_SHORT_PACKET_TRACE_MSG_SIZE)
+
+#define IPU_ISYS_SHORT_PACKET_FROM_RECEIVER 0
+#define IPU_ISYS_SHORT_PACKET_FROM_TUNIT 1
+
+#define IPU_ISYS_SHORT_PACKET_TRACE_MAX_TIMESHIFT 100
+#define IPU_ISYS_SHORT_PACKET_TRACE_EVENT_MASK 0x2082
+#define IPU_SKEW_CAL_LIMIT_HZ (1500000000ul / 2)
+
+#define CSI2_CSI_RX_DLY_CNT_TERMEN_CLANE_A 0
+#define CSI2_CSI_RX_DLY_CNT_TERMEN_CLANE_B 0
+#define CSI2_CSI_RX_DLY_CNT_SETTLE_CLANE_A 95
+#define CSI2_CSI_RX_DLY_CNT_SETTLE_CLANE_B -8
+
+#define CSI2_CSI_RX_DLY_CNT_TERMEN_DLANE_A 0
+#define CSI2_CSI_RX_DLY_CNT_TERMEN_DLANE_B 0
+#define CSI2_CSI_RX_DLY_CNT_SETTLE_DLANE_A 85
+#define CSI2_CSI_RX_DLY_CNT_SETTLE_DLANE_B -2
+
+#define IPU_EOF_TIMEOUT 300
+#define IPU_EOF_TIMEOUT_JIFFIES msecs_to_jiffies(IPU_EOF_TIMEOUT)
+
+/*
+ * struct ipu_isys_csi2
+ *
+ * @nlanes: number of lanes in the receiver
+ */
+struct ipu_isys_csi2 {
+ struct ipu_isys_csi2_pdata *pdata;
+ struct ipu_isys *isys;
+ struct ipu_isys_subdev asd;
+ struct ipu_isys_video av;
+ struct completion eof_completion;
+
+ void __iomem *base;
+ u32 receiver_errors;
+ unsigned int nlanes;
+ unsigned int index;
+ atomic_t sof_sequence;
+ bool in_frame;
+ bool wait_for_sync;
+
+ struct v4l2_ctrl *store_csi2_header;
+};
+
+struct ipu_isys_csi2_timing {
+ u32 ctermen;
+ u32 csettle;
+ u32 dtermen;
+ u32 dsettle;
+};
+
+/*
+ * This structure defines the MIPI packet header output
+ * from IPU MIPI receiver. Due to hardware conversion,
+ * this structure is not the same as defined in CSI-2 spec.
+ */
+struct ipu_isys_mipi_packet_header {
+ u32 word_count:16, dtype:13, sync:2, stype:1;
+ u32 sid:4, port_id:4, reserved:23, odd_even:1;
+} __packed;
+
+/*
+ * This structure defines the trace message content
+ * for CSI2 receiver monitor messages.
+ */
+struct ipu_isys_csi2_monitor_message {
+ u64 fe:1,
+ fs:1,
+ pe:1,
+ ps:1,
+ le:1,
+ ls:1,
+ reserved1:2,
+ sequence:2,
+ reserved2:2,
+ flash_shutter:4,
+ error_cause:12,
+ fifo_overrun:1,
+ crc_error:2,
+ reserved3:1,
+ timestamp_l:16,
+ port:4, vc:2, reserved4:2, frame_sync:4, reserved5:4;
+ u64 reserved6:3,
+ cmd:2, reserved7:1, monitor_id:7, reserved8:1, timestamp_h:50;
+} __packed;
+
+#define to_ipu_isys_csi2(sd) container_of(to_ipu_isys_subdev(sd), \
+ struct ipu_isys_csi2, asd)
+
+int ipu_isys_csi2_get_link_freq(struct ipu_isys_csi2 *csi2, __s64 *link_freq);
+int ipu_isys_csi2_init(struct ipu_isys_csi2 *csi2,
+ struct ipu_isys *isys,
+ void __iomem *base, unsigned int index);
+void ipu_isys_csi2_cleanup(struct ipu_isys_csi2 *csi2);
+struct ipu_isys_buffer *
+ipu_isys_csi2_get_short_packet_buffer(struct ipu_isys_pipeline *ip,
+ struct ipu_isys_buffer_list *bl);
+void ipu_isys_csi2_sof_event(struct ipu_isys_csi2 *csi2);
+void ipu_isys_csi2_eof_event(struct ipu_isys_csi2 *csi2);
+void ipu_isys_csi2_wait_last_eof(struct ipu_isys_csi2 *csi2);
+
+/* interface for platform specific */
+int ipu_isys_csi2_set_stream(struct v4l2_subdev *sd,
+ struct ipu_isys_csi2_timing timing,
+ unsigned int nlanes, int enable);
+unsigned int ipu_isys_csi2_get_current_field(struct ipu_isys_pipeline *ip,
+ unsigned int *timestamp);
+void ipu_isys_csi2_isr(struct ipu_isys_csi2 *csi2);
+void ipu_isys_csi2_error(struct ipu_isys_csi2 *csi2);
+
+#endif /* IPU_ISYS_CSI2_H */
diff --git a/drivers/media/pci/intel/ipu-isys-media.h b/drivers/media/pci/intel/ipu-isys-media.h
new file mode 100644
index 0000000000000..72b48bcbf7f10
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-isys-media.h
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2016 - 2020 Intel Corporation */
+
+#ifndef IPU_ISYS_MEDIA_H
+#define IPU_ISYS_MEDIA_H
+
+#include <linux/slab.h>
+#include <media/media-entity.h>
+
+struct __packed media_request_cmd {
+ __u32 cmd;
+ __u32 request;
+ __u32 flags;
+};
+
+struct __packed media_event_request_complete {
+ __u32 id;
+};
+
+#define MEDIA_EVENT_TYPE_REQUEST_COMPLETE 1
+
+struct __packed media_event {
+ __u32 type;
+ __u32 sequence;
+ __u32 reserved[4];
+
+ union {
+ struct media_event_request_complete req_complete;
+ };
+};
+
+enum media_device_request_state {
+ MEDIA_DEVICE_REQUEST_STATE_IDLE,
+ MEDIA_DEVICE_REQUEST_STATE_QUEUED,
+ MEDIA_DEVICE_REQUEST_STATE_DELETED,
+ MEDIA_DEVICE_REQUEST_STATE_COMPLETE,
+};
+
+struct media_kevent {
+ struct list_head list;
+ struct media_event ev;
+};
+
+struct media_device_request {
+ u32 id;
+ struct media_device *mdev;
+ struct file *filp;
+ struct media_kevent *kev;
+ struct kref kref;
+ struct list_head list;
+ struct list_head fh_list;
+ enum media_device_request_state state;
+ struct list_head data;
+ u32 flags;
+};
+
+static inline struct media_device_request *
+media_device_request_find(struct media_device *mdev, u16 reqid)
+{
+ return NULL;
+}
+
+static inline void media_device_request_get(struct media_device_request *req)
+{
+}
+
+static inline void media_device_request_put(struct media_device_request *req)
+{
+}
+
+static inline void
+media_device_request_complete(struct media_device *mdev,
+ struct media_device_request *req)
+{
+}
+
+#endif /* IPU_ISYS_MEDIA_H */
diff --git a/drivers/media/pci/intel/ipu-isys-queue.c b/drivers/media/pci/intel/ipu-isys-queue.c
new file mode 100644
index 0000000000000..ce217e84cc539
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-isys-queue.c
@@ -0,0 +1,1063 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2013 - 2020 Intel Corporation
+
+#include <linux/completion.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/string.h>
+
+#include <media/media-entity.h>
+#include <media/videobuf2-dma-contig.h>
+#include <media/v4l2-ioctl.h>
+
+#include "ipu.h"
+#include "ipu-bus.h"
+#include "ipu-buttress.h"
+#include "ipu-isys.h"
+#include "ipu-isys-csi2.h"
+#include "ipu-isys-video.h"
+
+static bool wall_clock_ts_on;
+module_param(wall_clock_ts_on, bool, 0660);
+MODULE_PARM_DESC(wall_clock_ts_on, "Timestamp based on REALTIME clock");
+
+static int queue_setup(struct vb2_queue *q,
+ unsigned int *num_buffers, unsigned int *num_planes,
+ unsigned int sizes[],
+ struct device *alloc_devs[])
+{
+ struct ipu_isys_queue *aq = vb2_queue_to_ipu_isys_queue(q);
+ struct ipu_isys_video *av = ipu_isys_queue_to_video(aq);
+ bool use_fmt = false;
+ unsigned int i;
+
+ /* num_planes == 0: we're being called through VIDIOC_REQBUFS */
+ if (!*num_planes) {
+ use_fmt = true;
+ *num_planes = av->mpix.num_planes;
+ }
+
+ for (i = 0; i < *num_planes; i++) {
+ if (use_fmt)
+ sizes[i] = av->mpix.plane_fmt[i].sizeimage;
+ alloc_devs[i] = aq->dev;
+ dev_dbg(&av->isys->adev->dev,
+ "%s: queue setup: plane %d size %u\n",
+ av->vdev.name, i, sizes[i]);
+ }
+
+ return 0;
+}
+
+static void ipu_isys_queue_lock(struct vb2_queue *q)
+{
+ struct ipu_isys_queue *aq = vb2_queue_to_ipu_isys_queue(q);
+ struct ipu_isys_video *av = ipu_isys_queue_to_video(aq);
+
+ dev_dbg(&av->isys->adev->dev, "%s: queue lock\n", av->vdev.name);
+ mutex_lock(&av->mutex);
+}
+
+static void ipu_isys_queue_unlock(struct vb2_queue *q)
+{
+ struct ipu_isys_queue *aq = vb2_queue_to_ipu_isys_queue(q);
+ struct ipu_isys_video *av = ipu_isys_queue_to_video(aq);
+
+ dev_dbg(&av->isys->adev->dev, "%s: queue unlock\n", av->vdev.name);
+ mutex_unlock(&av->mutex);
+}
+
+static int buf_init(struct vb2_buffer *vb)
+{
+ struct ipu_isys_queue *aq = vb2_queue_to_ipu_isys_queue(vb->vb2_queue);
+ struct ipu_isys_video *av = ipu_isys_queue_to_video(aq);
+
+ dev_dbg(&av->isys->adev->dev, "buffer: %s: %s\n", av->vdev.name,
+ __func__);
+
+ if (aq->buf_init)
+ return aq->buf_init(vb);
+
+ return 0;
+}
+
+int ipu_isys_buf_prepare(struct vb2_buffer *vb)
+{
+ struct ipu_isys_queue *aq = vb2_queue_to_ipu_isys_queue(vb->vb2_queue);
+ struct ipu_isys_video *av = ipu_isys_queue_to_video(aq);
+
+ dev_dbg(&av->isys->adev->dev,
+ "buffer: %s: configured size %u, buffer size %lu\n",
+ av->vdev.name,
+ av->mpix.plane_fmt[0].sizeimage, vb2_plane_size(vb, 0));
+
+ if (av->mpix.plane_fmt[0].sizeimage > vb2_plane_size(vb, 0))
+ return -EINVAL;
+
+ vb2_set_plane_payload(vb, 0, av->mpix.plane_fmt[0].bytesperline *
+ av->mpix.height);
+ vb->planes[0].data_offset = av->line_header_length / BITS_PER_BYTE;
+
+ return 0;
+}
+
+static int buf_prepare(struct vb2_buffer *vb)
+{
+ struct ipu_isys_queue *aq = vb2_queue_to_ipu_isys_queue(vb->vb2_queue);
+ struct ipu_isys_video *av = ipu_isys_queue_to_video(aq);
+ int rval;
+
+ if (av->isys->adev->isp->flr_done)
+ return -EIO;
+
+ rval = aq->buf_prepare(vb);
+ return rval;
+}
+
+static void buf_finish(struct vb2_buffer *vb)
+{
+ struct ipu_isys_queue *aq = vb2_queue_to_ipu_isys_queue(vb->vb2_queue);
+ struct ipu_isys_video *av = ipu_isys_queue_to_video(aq);
+
+ dev_dbg(&av->isys->adev->dev, "buffer: %s: %s\n", av->vdev.name,
+ __func__);
+
+}
+
+static void buf_cleanup(struct vb2_buffer *vb)
+{
+ struct ipu_isys_queue *aq = vb2_queue_to_ipu_isys_queue(vb->vb2_queue);
+ struct ipu_isys_video *av = ipu_isys_queue_to_video(aq);
+
+ dev_dbg(&av->isys->adev->dev, "buffer: %s: %s\n", av->vdev.name,
+ __func__);
+
+ if (aq->buf_cleanup)
+ return aq->buf_cleanup(vb);
+}
+
+/*
+ * Queue a buffer list back to incoming or active queues. The buffers
+ * are removed from the buffer list.
+ */
+void ipu_isys_buffer_list_queue(struct ipu_isys_buffer_list *bl,
+ unsigned long op_flags,
+ enum vb2_buffer_state state)
+{
+ struct ipu_isys_buffer *ib, *ib_safe;
+ unsigned long flags;
+ bool first = true;
+
+ if (!bl)
+ return;
+
+ WARN_ON(!bl->nbufs);
+ WARN_ON(op_flags & IPU_ISYS_BUFFER_LIST_FL_ACTIVE &&
+ op_flags & IPU_ISYS_BUFFER_LIST_FL_INCOMING);
+
+ list_for_each_entry_safe(ib, ib_safe, &bl->head, head) {
+ struct ipu_isys_video *av;
+
+ if (ib->type == IPU_ISYS_VIDEO_BUFFER) {
+ struct vb2_buffer *vb =
+ ipu_isys_buffer_to_vb2_buffer(ib);
+ struct ipu_isys_queue *aq =
+ vb2_queue_to_ipu_isys_queue(vb->vb2_queue);
+
+ av = ipu_isys_queue_to_video(aq);
+ spin_lock_irqsave(&aq->lock, flags);
+ list_del(&ib->head);
+ if (op_flags & IPU_ISYS_BUFFER_LIST_FL_ACTIVE)
+ list_add(&ib->head, &aq->active);
+ else if (op_flags & IPU_ISYS_BUFFER_LIST_FL_INCOMING)
+ list_add_tail(&ib->head, &aq->incoming);
+ spin_unlock_irqrestore(&aq->lock, flags);
+
+ if (op_flags & IPU_ISYS_BUFFER_LIST_FL_SET_STATE)
+ vb2_buffer_done(vb, state);
+ } else if (ib->type == IPU_ISYS_SHORT_PACKET_BUFFER) {
+ struct ipu_isys_private_buffer *pb =
+ ipu_isys_buffer_to_private_buffer(ib);
+ struct ipu_isys_pipeline *ip = pb->ip;
+
+ av = container_of(ip, struct ipu_isys_video, ip);
+ spin_lock_irqsave(&ip->short_packet_queue_lock, flags);
+ list_del(&ib->head);
+ if (op_flags & IPU_ISYS_BUFFER_LIST_FL_ACTIVE)
+ list_add(&ib->head, &ip->short_packet_active);
+ else if (op_flags & IPU_ISYS_BUFFER_LIST_FL_INCOMING)
+ list_add(&ib->head, &ip->short_packet_incoming);
+ spin_unlock_irqrestore(&ip->short_packet_queue_lock,
+ flags);
+ } else {
+ WARN_ON(1);
+ return;
+ }
+
+ if (first) {
+ dev_dbg(&av->isys->adev->dev,
+ "queue buf list %p flags %lx, s %d, %d bufs\n",
+ bl, op_flags, state, bl->nbufs);
+ first = false;
+ }
+
+ bl->nbufs--;
+ }
+
+ WARN_ON(bl->nbufs);
+}
+
+/*
+ * flush_firmware_streamon_fail() - Flush in cases where requests may
+ * have been queued to firmware and the *firmware streamon fails for a
+ * reason or another.
+ */
+static void flush_firmware_streamon_fail(struct ipu_isys_pipeline *ip)
+{
+ struct ipu_isys_video *pipe_av =
+ container_of(ip, struct ipu_isys_video, ip);
+ struct ipu_isys_queue *aq;
+ unsigned long flags;
+
+ lockdep_assert_held(&pipe_av->mutex);
+
+ list_for_each_entry(aq, &ip->queues, node) {
+ struct ipu_isys_video *av = ipu_isys_queue_to_video(aq);
+ struct ipu_isys_buffer *ib, *ib_safe;
+
+ spin_lock_irqsave(&aq->lock, flags);
+ list_for_each_entry_safe(ib, ib_safe, &aq->active, head) {
+ struct vb2_buffer *vb =
+ ipu_isys_buffer_to_vb2_buffer(ib);
+
+ list_del(&ib->head);
+ if (av->streaming) {
+ dev_dbg(&av->isys->adev->dev,
+ "%s: queue buffer %u back to incoming\n",
+ av->vdev.name,
+ vb->index);
+ /* Queue already streaming, return to driver. */
+ list_add(&ib->head, &aq->incoming);
+ continue;
+ }
+ /* Queue not yet streaming, return to user. */
+ dev_dbg(&av->isys->adev->dev,
+ "%s: return %u back to videobuf2\n",
+ av->vdev.name,
+ vb->index);
+ vb2_buffer_done(ipu_isys_buffer_to_vb2_buffer(ib),
+ VB2_BUF_STATE_QUEUED);
+ }
+ spin_unlock_irqrestore(&aq->lock, flags);
+ }
+}
+
+/*
+ * Attempt obtaining a buffer list from the incoming queues, a list of
+ * buffers that contains one entry from each video buffer queue. If
+ * all queues have no buffers, the buffers that were already dequeued
+ * are returned to their queues.
+ */
+static int buffer_list_get(struct ipu_isys_pipeline *ip,
+ struct ipu_isys_buffer_list *bl)
+{
+ struct ipu_isys_queue *aq;
+ struct ipu_isys_buffer *ib;
+ unsigned long flags;
+ int ret = 0;
+
+ bl->nbufs = 0;
+ INIT_LIST_HEAD(&bl->head);
+
+ list_for_each_entry(aq, &ip->queues, node) {
+ struct ipu_isys_buffer *ib;
+
+ spin_lock_irqsave(&aq->lock, flags);
+ if (list_empty(&aq->incoming)) {
+ spin_unlock_irqrestore(&aq->lock, flags);
+ ret = -ENODATA;
+ goto error;
+ }
+
+ ib = list_last_entry(&aq->incoming,
+ struct ipu_isys_buffer, head);
+ if (ib->req) {
+ spin_unlock_irqrestore(&aq->lock, flags);
+ ret = -ENODATA;
+ goto error;
+ }
+
+ dev_dbg(&ip->isys->adev->dev, "buffer: %s: buffer %u\n",
+ ipu_isys_queue_to_video(aq)->vdev.name,
+ ipu_isys_buffer_to_vb2_buffer(ib)->index
+ );
+ list_del(&ib->head);
+ list_add(&ib->head, &bl->head);
+ spin_unlock_irqrestore(&aq->lock, flags);
+
+ bl->nbufs++;
+ }
+
+ list_for_each_entry(ib, &bl->head, head) {
+ struct vb2_buffer *vb = ipu_isys_buffer_to_vb2_buffer(ib);
+
+ aq = vb2_queue_to_ipu_isys_queue(vb->vb2_queue);
+ if (aq->prepare_frame_buff_set)
+ aq->prepare_frame_buff_set(vb);
+ }
+
+ /* Get short packet buffer. */
+ if (ip->interlaced && ip->isys->short_packet_source ==
+ IPU_ISYS_SHORT_PACKET_FROM_RECEIVER) {
+ ib = ipu_isys_csi2_get_short_packet_buffer(ip, bl);
+ if (!ib) {
+ ret = -ENODATA;
+ dev_err(&ip->isys->adev->dev,
+ "No more short packet buffers. Driver bug?");
+ WARN_ON(1);
+ goto error;
+ }
+ bl->nbufs++;
+ }
+
+ dev_dbg(&ip->isys->adev->dev, "get buffer list %p, %u buffers\n", bl,
+ bl->nbufs);
+ return ret;
+
+error:
+ if (!list_empty(&bl->head))
+ ipu_isys_buffer_list_queue(bl,
+ IPU_ISYS_BUFFER_LIST_FL_INCOMING, 0);
+ return ret;
+}
+
+void
+ipu_isys_buffer_to_fw_frame_buff_pin(struct vb2_buffer *vb,
+ struct ipu_fw_isys_frame_buff_set_abi *set)
+{
+ struct ipu_isys_queue *aq = vb2_queue_to_ipu_isys_queue(vb->vb2_queue);
+ struct ipu_isys_video *av = container_of(aq, struct ipu_isys_video, aq);
+
+ if (av->compression)
+ set->output_pins[aq->fw_output].compress = 1;
+
+ set->output_pins[aq->fw_output].addr =
+ vb2_dma_contig_plane_dma_addr(vb, 0);
+ set->output_pins[aq->fw_output].out_buf_id =
+ vb->index + 1;
+}
+
+/*
+ * Convert a buffer list to a isys fw ABI framebuffer set. The
+ * buffer list is not modified.
+ */
+#define IPU_ISYS_FRAME_NUM_THRESHOLD (30)
+void
+ipu_isys_buffer_to_fw_frame_buff(struct ipu_fw_isys_frame_buff_set_abi *set,
+ struct ipu_isys_pipeline *ip,
+ struct ipu_isys_buffer_list *bl)
+{
+ struct ipu_isys_buffer *ib;
+
+ WARN_ON(!bl->nbufs);
+
+ set->send_irq_sof = 1;
+ set->send_resp_sof = 1;
+ set->send_irq_eof = 0;
+ set->send_resp_eof = 0;
+
+ if (ip->streaming)
+ set->send_irq_capture_ack = 0;
+ else
+ set->send_irq_capture_ack = 1;
+ set->send_irq_capture_done = 0;
+
+ set->send_resp_capture_ack = 1;
+ set->send_resp_capture_done = 1;
+ if (!ip->interlaced &&
+ atomic_read(&ip->sequence) >= IPU_ISYS_FRAME_NUM_THRESHOLD) {
+ set->send_resp_capture_ack = 0;
+ set->send_resp_capture_done = 0;
+ }
+
+ list_for_each_entry(ib, &bl->head, head) {
+ if (ib->type == IPU_ISYS_VIDEO_BUFFER) {
+ struct vb2_buffer *vb =
+ ipu_isys_buffer_to_vb2_buffer(ib);
+ struct ipu_isys_queue *aq =
+ vb2_queue_to_ipu_isys_queue(vb->vb2_queue);
+
+ if (aq->fill_frame_buff_set_pin)
+ aq->fill_frame_buff_set_pin(vb, set);
+ } else if (ib->type == IPU_ISYS_SHORT_PACKET_BUFFER) {
+ struct ipu_isys_private_buffer *pb =
+ ipu_isys_buffer_to_private_buffer(ib);
+ struct ipu_fw_isys_output_pin_payload_abi *output_pin =
+ &set->output_pins[ip->short_packet_output_pin];
+
+ output_pin->addr = pb->dma_addr;
+ output_pin->out_buf_id = pb->index + 1;
+ } else {
+ WARN_ON(1);
+ }
+ }
+}
+
+/* Start streaming for real. The buffer list must be available. */
+static int ipu_isys_stream_start(struct ipu_isys_pipeline *ip,
+ struct ipu_isys_buffer_list *bl, bool error)
+{
+ struct ipu_isys_video *pipe_av =
+ container_of(ip, struct ipu_isys_video, ip);
+ struct ipu_isys_buffer_list __bl;
+ int rval;
+
+ mutex_lock(&pipe_av->isys->stream_mutex);
+
+ rval = ipu_isys_video_set_streaming(pipe_av, 1, bl);
+ if (rval) {
+ mutex_unlock(&pipe_av->isys->stream_mutex);
+ goto out_requeue;
+ }
+
+ ip->streaming = 1;
+
+ mutex_unlock(&pipe_av->isys->stream_mutex);
+
+ bl = &__bl;
+
+ do {
+ struct ipu_fw_isys_frame_buff_set_abi *buf = NULL;
+ struct isys_fw_msgs *msg;
+ enum ipu_fw_isys_send_type send_type =
+ IPU_FW_ISYS_SEND_TYPE_STREAM_CAPTURE;
+
+ rval = buffer_list_get(ip, bl);
+ if (rval == -EINVAL)
+ goto out_requeue;
+ else if (rval < 0)
+ break;
+
+ msg = ipu_get_fw_msg_buf(ip);
+ if (!msg)
+ return -ENOMEM;
+
+ buf = to_frame_msg_buf(msg);
+
+ ipu_isys_buffer_to_fw_frame_buff(buf, ip, bl);
+
+ ipu_fw_isys_dump_frame_buff_set(&pipe_av->isys->adev->dev, buf,
+ ip->nr_output_pins);
+
+ ipu_isys_buffer_list_queue(bl,
+ IPU_ISYS_BUFFER_LIST_FL_ACTIVE, 0);
+
+ rval = ipu_fw_isys_complex_cmd(pipe_av->isys,
+ ip->stream_handle,
+ buf, to_dma_addr(msg),
+ sizeof(*buf),
+ send_type);
+ ipu_put_fw_mgs_buf(pipe_av->isys, (uintptr_t)buf);
+ } while (!WARN_ON(rval));
+
+ return 0;
+
+out_requeue:
+ if (bl && bl->nbufs)
+ ipu_isys_buffer_list_queue(bl,
+ IPU_ISYS_BUFFER_LIST_FL_INCOMING |
+ (error ?
+ IPU_ISYS_BUFFER_LIST_FL_SET_STATE :
+ 0),
+ error ? VB2_BUF_STATE_ERROR :
+ VB2_BUF_STATE_QUEUED);
+ flush_firmware_streamon_fail(ip);
+
+ return rval;
+}
+
+static void __buf_queue(struct vb2_buffer *vb, bool force)
+{
+ struct ipu_isys_queue *aq = vb2_queue_to_ipu_isys_queue(vb->vb2_queue);
+ struct ipu_isys_video *av = ipu_isys_queue_to_video(aq);
+ struct ipu_isys_buffer *ib = vb2_buffer_to_ipu_isys_buffer(vb);
+ struct ipu_isys_pipeline *ip =
+ to_ipu_isys_pipeline(av->vdev.entity.pipe);
+ struct ipu_isys_buffer_list bl;
+
+ struct ipu_fw_isys_frame_buff_set_abi *buf = NULL;
+ struct isys_fw_msgs *msg;
+
+ struct ipu_isys_video *pipe_av =
+ container_of(ip, struct ipu_isys_video, ip);
+ unsigned long flags;
+ unsigned int i;
+ int rval;
+
+ dev_dbg(&av->isys->adev->dev, "buffer: %s: buf_queue %u\n",
+ av->vdev.name,
+ vb->index
+ );
+
+ for (i = 0; i < vb->num_planes; i++)
+ dev_dbg(&av->isys->adev->dev, "iova: plane %u iova 0x%x\n", i,
+ (u32)vb2_dma_contig_plane_dma_addr(vb, i));
+
+ spin_lock_irqsave(&aq->lock, flags);
+ list_add(&ib->head, &aq->incoming);
+ spin_unlock_irqrestore(&aq->lock, flags);
+
+ if (ib->req)
+ return;
+
+ if (!pipe_av || !vb->vb2_queue->streaming) {
+ dev_dbg(&av->isys->adev->dev,
+ "not pipe_av set, adding to incoming\n");
+ return;
+ }
+
+ mutex_unlock(&av->mutex);
+ mutex_lock(&pipe_av->mutex);
+
+ if (!force && ip->nr_streaming != ip->nr_queues) {
+ dev_dbg(&av->isys->adev->dev,
+ "not streaming yet, adding to incoming\n");
+ goto out;
+ }
+
+ /*
+ * We just put one buffer to the incoming list of this queue
+ * (above). Let's see whether all queues in the pipeline would
+ * have a buffer.
+ */
+ rval = buffer_list_get(ip, &bl);
+ if (rval < 0) {
+ if (rval == -EINVAL) {
+ dev_err(&av->isys->adev->dev,
+ "error: should not happen\n");
+ WARN_ON(1);
+ } else {
+ dev_dbg(&av->isys->adev->dev,
+ "not enough buffers available\n");
+ }
+ goto out;
+ }
+
+ msg = ipu_get_fw_msg_buf(ip);
+ if (!msg) {
+ rval = -ENOMEM;
+ goto out;
+ }
+ buf = to_frame_msg_buf(msg);
+
+ ipu_isys_buffer_to_fw_frame_buff(buf, ip, &bl);
+
+ ipu_fw_isys_dump_frame_buff_set(&pipe_av->isys->adev->dev, buf,
+ ip->nr_output_pins);
+
+ if (!ip->streaming) {
+ dev_dbg(&av->isys->adev->dev,
+ "got a buffer to start streaming!\n");
+ rval = ipu_isys_stream_start(ip, &bl, true);
+ if (rval)
+ dev_err(&av->isys->adev->dev,
+ "stream start failed.\n");
+ goto out;
+ }
+
+ /*
+ * We must queue the buffers in the buffer list to the
+ * appropriate video buffer queues BEFORE passing them to the
+ * firmware since we could get a buffer event back before we
+ * have queued them ourselves to the active queue.
+ */
+ ipu_isys_buffer_list_queue(&bl, IPU_ISYS_BUFFER_LIST_FL_ACTIVE, 0);
+
+ rval = ipu_fw_isys_complex_cmd(pipe_av->isys,
+ ip->stream_handle,
+ buf, to_dma_addr(msg),
+ sizeof(*buf),
+ IPU_FW_ISYS_SEND_TYPE_STREAM_CAPTURE);
+ ipu_put_fw_mgs_buf(pipe_av->isys, (uintptr_t)buf);
+ if (!WARN_ON(rval < 0))
+ dev_dbg(&av->isys->adev->dev, "queued buffer\n");
+
+out:
+ mutex_unlock(&pipe_av->mutex);
+ mutex_lock(&av->mutex);
+}
+
+static void buf_queue(struct vb2_buffer *vb)
+{
+ __buf_queue(vb, false);
+}
+
+int ipu_isys_link_fmt_validate(struct ipu_isys_queue *aq)
+{
+ struct ipu_isys_video *av = ipu_isys_queue_to_video(aq);
+ struct v4l2_subdev_format fmt = { 0 };
+ struct media_pad *pad = media_entity_remote_pad(av->vdev.entity.pads);
+ struct v4l2_subdev *sd;
+ int rval;
+
+ if (!pad) {
+ dev_dbg(&av->isys->adev->dev,
+ "video node %s pad not connected\n", av->vdev.name);
+ return -ENOTCONN;
+ }
+
+ sd = media_entity_to_v4l2_subdev(pad->entity);
+
+ fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ fmt.pad = pad->index;
+ rval = v4l2_subdev_call(sd, pad, get_fmt, NULL, &fmt);
+ if (rval)
+ return rval;
+
+ if (fmt.format.width != av->mpix.width ||
+ fmt.format.height != av->mpix.height) {
+ dev_dbg(&av->isys->adev->dev,
+ "wrong width or height %ux%u (%ux%u expected)\n",
+ av->mpix.width, av->mpix.height,
+ fmt.format.width, fmt.format.height);
+ return -EINVAL;
+ }
+
+ if (fmt.format.field != av->mpix.field) {
+ dev_dbg(&av->isys->adev->dev,
+ "wrong field value 0x%8.8x (0x%8.8x expected)\n",
+ av->mpix.field, fmt.format.field);
+ return -EINVAL;
+ }
+
+ if (fmt.format.code != av->pfmt->code) {
+ dev_dbg(&av->isys->adev->dev,
+ "wrong media bus code 0x%8.8x (0x%8.8x expected)\n",
+ av->pfmt->code, fmt.format.code);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* Return buffers back to videobuf2. */
+static void return_buffers(struct ipu_isys_queue *aq,
+ enum vb2_buffer_state state)
+{
+ struct ipu_isys_video *av = ipu_isys_queue_to_video(aq);
+ int reset_needed = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&aq->lock, flags);
+ while (!list_empty(&aq->incoming)) {
+ struct ipu_isys_buffer *ib = list_first_entry(&aq->incoming,
+ struct
+ ipu_isys_buffer,
+ head);
+ struct vb2_buffer *vb = ipu_isys_buffer_to_vb2_buffer(ib);
+
+ list_del(&ib->head);
+ spin_unlock_irqrestore(&aq->lock, flags);
+
+ vb2_buffer_done(vb, state);
+
+ dev_dbg(&av->isys->adev->dev,
+ "%s: stop_streaming incoming %u\n",
+ ipu_isys_queue_to_video(vb2_queue_to_ipu_isys_queue
+ (vb->vb2_queue))->vdev.name,
+ vb->index);
+
+ spin_lock_irqsave(&aq->lock, flags);
+ }
+
+ /*
+ * Something went wrong (FW crash / HW hang / not all buffers
+ * returned from isys) if there are still buffers queued in active
+ * queue. We have to clean up places a bit.
+ */
+ while (!list_empty(&aq->active)) {
+ struct ipu_isys_buffer *ib = list_first_entry(&aq->active,
+ struct
+ ipu_isys_buffer,
+ head);
+ struct vb2_buffer *vb = ipu_isys_buffer_to_vb2_buffer(ib);
+
+ list_del(&ib->head);
+ spin_unlock_irqrestore(&aq->lock, flags);
+
+ vb2_buffer_done(vb, state);
+
+ dev_warn(&av->isys->adev->dev, "%s: cleaning active queue %u\n",
+ ipu_isys_queue_to_video(vb2_queue_to_ipu_isys_queue
+ (vb->vb2_queue))->vdev.name,
+ vb->index);
+
+ spin_lock_irqsave(&aq->lock, flags);
+ reset_needed = 1;
+ }
+
+ spin_unlock_irqrestore(&aq->lock, flags);
+
+ if (reset_needed) {
+ mutex_lock(&av->isys->mutex);
+ av->isys->reset_needed = true;
+ mutex_unlock(&av->isys->mutex);
+ }
+}
+
+static int start_streaming(struct vb2_queue *q, unsigned int count)
+{
+ struct ipu_isys_queue *aq = vb2_queue_to_ipu_isys_queue(q);
+ struct ipu_isys_video *av = ipu_isys_queue_to_video(aq);
+ struct ipu_isys_video *pipe_av;
+ struct ipu_isys_pipeline *ip;
+ struct ipu_isys_buffer_list __bl, *bl = NULL;
+ bool first;
+ int rval;
+
+ dev_dbg(&av->isys->adev->dev,
+ "stream: %s: width %u, height %u, css pixelformat %u\n",
+ av->vdev.name, av->mpix.width, av->mpix.height,
+ av->pfmt->css_pixelformat);
+
+ mutex_lock(&av->isys->stream_mutex);
+
+ first = !av->vdev.entity.pipe;
+
+ if (first) {
+ rval = ipu_isys_video_prepare_streaming(av, 1);
+ if (rval)
+ goto out_return_buffers;
+ }
+
+ mutex_unlock(&av->isys->stream_mutex);
+
+ rval = aq->link_fmt_validate(aq);
+ if (rval) {
+ dev_dbg(&av->isys->adev->dev,
+ "%s: link format validation failed (%d)\n",
+ av->vdev.name, rval);
+ goto out_unprepare_streaming;
+ }
+
+ ip = to_ipu_isys_pipeline(av->vdev.entity.pipe);
+ pipe_av = container_of(ip, struct ipu_isys_video, ip);
+ mutex_unlock(&av->mutex);
+
+ mutex_lock(&pipe_av->mutex);
+ ip->nr_streaming++;
+ dev_dbg(&av->isys->adev->dev, "queue %u of %u\n", ip->nr_streaming,
+ ip->nr_queues);
+ list_add(&aq->node, &ip->queues);
+ if (ip->nr_streaming != ip->nr_queues)
+ goto out;
+
+ if (list_empty(&av->isys->requests)) {
+ bl = &__bl;
+ rval = buffer_list_get(ip, bl);
+ if (rval == -EINVAL) {
+ goto out_stream_start;
+ } else if (rval < 0) {
+ dev_dbg(&av->isys->adev->dev,
+ "no request available, postponing streamon\n");
+ goto out;
+ }
+ }
+
+ rval = ipu_isys_stream_start(ip, bl, false);
+ if (rval)
+ goto out_stream_start;
+
+out:
+ mutex_unlock(&pipe_av->mutex);
+ mutex_lock(&av->mutex);
+
+ return 0;
+
+out_stream_start:
+ list_del(&aq->node);
+ ip->nr_streaming--;
+ mutex_unlock(&pipe_av->mutex);
+ mutex_lock(&av->mutex);
+
+out_unprepare_streaming:
+ mutex_lock(&av->isys->stream_mutex);
+ if (first)
+ ipu_isys_video_prepare_streaming(av, 0);
+
+out_return_buffers:
+ mutex_unlock(&av->isys->stream_mutex);
+ return_buffers(aq, VB2_BUF_STATE_QUEUED);
+
+ return rval;
+}
+
+static void stop_streaming(struct vb2_queue *q)
+{
+ struct ipu_isys_queue *aq = vb2_queue_to_ipu_isys_queue(q);
+ struct ipu_isys_video *av = ipu_isys_queue_to_video(aq);
+ struct ipu_isys_pipeline *ip =
+ to_ipu_isys_pipeline(av->vdev.entity.pipe);
+ struct ipu_isys_video *pipe_av =
+ container_of(ip, struct ipu_isys_video, ip);
+
+ if (pipe_av != av) {
+ mutex_unlock(&av->mutex);
+ mutex_lock(&pipe_av->mutex);
+ }
+
+ mutex_lock(&av->isys->stream_mutex);
+ if (ip->nr_streaming == ip->nr_queues && ip->streaming)
+ ipu_isys_video_set_streaming(av, 0, NULL);
+ if (ip->nr_streaming == 1)
+ ipu_isys_video_prepare_streaming(av, 0);
+ mutex_unlock(&av->isys->stream_mutex);
+
+ ip->nr_streaming--;
+ list_del(&aq->node);
+ ip->streaming = 0;
+
+ if (pipe_av != av) {
+ mutex_unlock(&pipe_av->mutex);
+ mutex_lock(&av->mutex);
+ }
+
+ return_buffers(aq, VB2_BUF_STATE_ERROR);
+}
+
+static unsigned int
+get_sof_sequence_by_timestamp(struct ipu_isys_pipeline *ip,
+ struct ipu_fw_isys_resp_info_abi *info)
+{
+ struct ipu_isys *isys =
+ container_of(ip, struct ipu_isys_video, ip)->isys;
+ u64 time = (u64)info->timestamp[1] << 32 | info->timestamp[0];
+ unsigned int i;
+
+ /*
+ * The timestamp is invalid as no TSC in some FPGA platform,
+ * so get the sequence from pipeline directly in this case.
+ */
+ if (time == 0)
+ return atomic_read(&ip->sequence) - 1;
+
+ for (i = 0; i < IPU_ISYS_MAX_PARALLEL_SOF; i++)
+ if (time == ip->seq[i].timestamp) {
+ dev_dbg(&isys->adev->dev,
+ "sof: using seq nr %u for ts 0x%16.16llx\n",
+ ip->seq[i].sequence, time);
+ return ip->seq[i].sequence;
+ }
+
+ dev_dbg(&isys->adev->dev, "SOF: looking for 0x%16.16llx\n", time);
+ for (i = 0; i < IPU_ISYS_MAX_PARALLEL_SOF; i++)
+ dev_dbg(&isys->adev->dev,
+ "SOF: sequence %u, timestamp value 0x%16.16llx\n",
+ ip->seq[i].sequence, ip->seq[i].timestamp);
+ dev_dbg(&isys->adev->dev, "SOF sequence number not found\n");
+
+ return 0;
+}
+
+static u64 get_sof_ns_delta(struct ipu_isys_video *av,
+ struct ipu_fw_isys_resp_info_abi *info)
+{
+ struct ipu_bus_device *adev = to_ipu_bus_device(&av->isys->adev->dev);
+ struct ipu_device *isp = adev->isp;
+ u64 delta, tsc_now;
+
+ if (!ipu_buttress_tsc_read(isp, &tsc_now))
+ delta = tsc_now -
+ ((u64)info->timestamp[1] << 32 | info->timestamp[0]);
+ else
+ delta = 0;
+
+ return ipu_buttress_tsc_ticks_to_ns(delta);
+}
+
+void
+ipu_isys_buf_calc_sequence_time(struct ipu_isys_buffer *ib,
+ struct ipu_fw_isys_resp_info_abi *info)
+{
+ struct vb2_buffer *vb = ipu_isys_buffer_to_vb2_buffer(ib);
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct ipu_isys_queue *aq = vb2_queue_to_ipu_isys_queue(vb->vb2_queue);
+ struct ipu_isys_video *av = ipu_isys_queue_to_video(aq);
+ struct device *dev = &av->isys->adev->dev;
+ struct ipu_isys_pipeline *ip =
+ to_ipu_isys_pipeline(av->vdev.entity.pipe);
+ u64 ns;
+ u32 sequence;
+
+ if (ip->has_sof) {
+ ns = (wall_clock_ts_on) ? ktime_get_real_ns() : ktime_get_ns();
+ ns -= get_sof_ns_delta(av, info);
+ sequence = get_sof_sequence_by_timestamp(ip, info);
+ } else {
+ ns = ((wall_clock_ts_on) ? ktime_get_real_ns() :
+ ktime_get_ns());
+ sequence = (atomic_inc_return(&ip->sequence) - 1)
+ / ip->nr_queues;
+ }
+
+ vbuf->vb2_buf.timestamp = ns;
+ vbuf->sequence = sequence;
+
+ dev_dbg(dev, "buf: %s: buffer done, CPU-timestamp:%lld, sequence:%d\n",
+ av->vdev.name, ktime_get_ns(), sequence);
+ dev_dbg(dev, "index:%d, vbuf timestamp:%lld, endl\n",
+ vb->index, vbuf->vb2_buf.timestamp);
+}
+
+void ipu_isys_queue_buf_done(struct ipu_isys_buffer *ib)
+{
+ struct vb2_buffer *vb = ipu_isys_buffer_to_vb2_buffer(ib);
+
+ if (atomic_read(&ib->str2mmio_flag)) {
+ vb2_buffer_done(vb, VB2_BUF_STATE_ERROR);
+ /*
+ * Operation on buffer is ended with error and will be reported
+ * to the userspace when it is de-queued
+ */
+ atomic_set(&ib->str2mmio_flag, 0);
+ } else {
+ vb2_buffer_done(vb, VB2_BUF_STATE_DONE);
+ }
+}
+
+void ipu_isys_queue_buf_ready(struct ipu_isys_pipeline *ip,
+ struct ipu_fw_isys_resp_info_abi *info)
+{
+ struct ipu_isys *isys =
+ container_of(ip, struct ipu_isys_video, ip)->isys;
+ struct ipu_isys_queue *aq = ip->output_pins[info->pin_id].aq;
+ struct ipu_isys_buffer *ib;
+ struct vb2_buffer *vb;
+ unsigned long flags;
+ bool first = true;
+ struct vb2_v4l2_buffer *buf;
+
+ dev_dbg(&isys->adev->dev, "buffer: %s: received buffer %8.8x\n",
+ ipu_isys_queue_to_video(aq)->vdev.name, info->pin.addr);
+
+ spin_lock_irqsave(&aq->lock, flags);
+ if (list_empty(&aq->active)) {
+ spin_unlock_irqrestore(&aq->lock, flags);
+ dev_err(&isys->adev->dev, "active queue empty\n");
+ return;
+ }
+
+ list_for_each_entry_reverse(ib, &aq->active, head) {
+ dma_addr_t addr;
+
+ vb = ipu_isys_buffer_to_vb2_buffer(ib);
+ addr = vb2_dma_contig_plane_dma_addr(vb, 0);
+
+ if (info->pin.addr != addr) {
+ if (first)
+ dev_err(&isys->adev->dev,
+ "WARN: buffer address %pad expected!\n",
+ &addr);
+ first = false;
+ continue;
+ }
+
+ if (info->error_info.error ==
+ IPU_FW_ISYS_ERROR_HW_REPORTED_STR2MMIO) {
+ /*
+ * Check for error message:
+ * 'IPU_FW_ISYS_ERROR_HW_REPORTED_STR2MMIO'
+ */
+ atomic_set(&ib->str2mmio_flag, 1);
+ }
+ dev_dbg(&isys->adev->dev, "buffer: found buffer %pad\n", &addr);
+
+ buf = to_vb2_v4l2_buffer(vb);
+ buf->field = V4L2_FIELD_NONE;
+
+ list_del(&ib->head);
+ spin_unlock_irqrestore(&aq->lock, flags);
+
+ ipu_isys_buf_calc_sequence_time(ib, info);
+
+ /*
+ * For interlaced buffers, the notification to user space
+ * is postponed to capture_done event since the field
+ * information is available only at that time.
+ */
+ if (ip->interlaced) {
+ spin_lock_irqsave(&ip->short_packet_queue_lock, flags);
+ list_add(&ib->head, &ip->pending_interlaced_bufs);
+ spin_unlock_irqrestore(&ip->short_packet_queue_lock,
+ flags);
+ } else {
+ ipu_isys_queue_buf_done(ib);
+ }
+
+ return;
+ }
+
+ dev_err(&isys->adev->dev,
+ "WARNING: cannot find a matching video buffer!\n");
+
+ spin_unlock_irqrestore(&aq->lock, flags);
+}
+
+void
+ipu_isys_queue_short_packet_ready(struct ipu_isys_pipeline *ip,
+ struct ipu_fw_isys_resp_info_abi *info)
+{
+ struct ipu_isys *isys =
+ container_of(ip, struct ipu_isys_video, ip)->isys;
+ unsigned long flags;
+
+ dev_dbg(&isys->adev->dev, "receive short packet buffer %8.8x\n",
+ info->pin.addr);
+ spin_lock_irqsave(&ip->short_packet_queue_lock, flags);
+ ip->cur_field = ipu_isys_csi2_get_current_field(ip, info->timestamp);
+ spin_unlock_irqrestore(&ip->short_packet_queue_lock, flags);
+}
+
+struct vb2_ops ipu_isys_queue_ops = {
+ .queue_setup = queue_setup,
+ .wait_prepare = ipu_isys_queue_unlock,
+ .wait_finish = ipu_isys_queue_lock,
+ .buf_init = buf_init,
+ .buf_prepare = buf_prepare,
+ .buf_finish = buf_finish,
+ .buf_cleanup = buf_cleanup,
+ .start_streaming = start_streaming,
+ .stop_streaming = stop_streaming,
+ .buf_queue = buf_queue,
+};
+
+int ipu_isys_queue_init(struct ipu_isys_queue *aq)
+{
+ struct ipu_isys *isys = ipu_isys_queue_to_video(aq)->isys;
+ int rval;
+
+ if (!aq->vbq.io_modes)
+ aq->vbq.io_modes = VB2_USERPTR | VB2_MMAP | VB2_DMABUF;
+ aq->vbq.drv_priv = aq;
+ aq->vbq.ops = &ipu_isys_queue_ops;
+ aq->vbq.mem_ops = &vb2_dma_contig_memops;
+ aq->vbq.timestamp_flags = (wall_clock_ts_on) ?
+ V4L2_BUF_FLAG_TIMESTAMP_UNKNOWN : V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+
+ rval = vb2_queue_init(&aq->vbq);
+ if (rval)
+ return rval;
+
+ aq->dev = &isys->adev->dev;
+ aq->vbq.dev = &isys->adev->dev;
+ spin_lock_init(&aq->lock);
+ INIT_LIST_HEAD(&aq->active);
+ INIT_LIST_HEAD(&aq->incoming);
+
+ return 0;
+}
+
+void ipu_isys_queue_cleanup(struct ipu_isys_queue *aq)
+{
+ vb2_queue_release(&aq->vbq);
+}
diff --git a/drivers/media/pci/intel/ipu-isys-queue.h b/drivers/media/pci/intel/ipu-isys-queue.h
new file mode 100644
index 0000000000000..99be2989a088c
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-isys-queue.h
@@ -0,0 +1,142 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2013 - 2020 Intel Corporation */
+
+#ifndef IPU_ISYS_QUEUE_H
+#define IPU_ISYS_QUEUE_H
+
+#include <linux/list.h>
+#include <linux/spinlock.h>
+
+#include <media/videobuf2-v4l2.h>
+
+#include "ipu-isys-media.h"
+
+struct ipu_isys_video;
+struct ipu_isys_pipeline;
+struct ipu_fw_isys_resp_info_abi;
+struct ipu_fw_isys_frame_buff_set_abi;
+
+enum ipu_isys_buffer_type {
+ IPU_ISYS_VIDEO_BUFFER,
+ IPU_ISYS_SHORT_PACKET_BUFFER,
+};
+
+struct ipu_isys_queue {
+ struct list_head node; /* struct ipu_isys_pipeline.queues */
+ struct vb2_queue vbq;
+ struct device *dev;
+ /*
+ * @lock: serialise access to queued and pre_streamon_queued
+ */
+ spinlock_t lock;
+ struct list_head active;
+ struct list_head incoming;
+ u32 css_pin_type;
+ unsigned int fw_output;
+ int (*buf_init)(struct vb2_buffer *vb);
+ void (*buf_cleanup)(struct vb2_buffer *vb);
+ int (*buf_prepare)(struct vb2_buffer *vb);
+ void (*prepare_frame_buff_set)(struct vb2_buffer *vb);
+ void (*fill_frame_buff_set_pin)(struct vb2_buffer *vb,
+ struct ipu_fw_isys_frame_buff_set_abi *
+ set);
+ int (*link_fmt_validate)(struct ipu_isys_queue *aq);
+};
+
+struct ipu_isys_buffer {
+ struct list_head head;
+ enum ipu_isys_buffer_type type;
+ struct list_head req_head;
+ struct media_device_request *req;
+ atomic_t str2mmio_flag;
+};
+
+struct ipu_isys_video_buffer {
+ struct vb2_v4l2_buffer vb_v4l2;
+ struct ipu_isys_buffer ib;
+};
+
+struct ipu_isys_private_buffer {
+ struct ipu_isys_buffer ib;
+ struct ipu_isys_pipeline *ip;
+ unsigned int index;
+ unsigned int bytesused;
+ dma_addr_t dma_addr;
+ void *buffer;
+};
+
+#define IPU_ISYS_BUFFER_LIST_FL_INCOMING BIT(0)
+#define IPU_ISYS_BUFFER_LIST_FL_ACTIVE BIT(1)
+#define IPU_ISYS_BUFFER_LIST_FL_SET_STATE BIT(2)
+
+struct ipu_isys_buffer_list {
+ struct list_head head;
+ unsigned int nbufs;
+};
+
+#define vb2_queue_to_ipu_isys_queue(__vb2) \
+ container_of(__vb2, struct ipu_isys_queue, vbq)
+
+#define ipu_isys_to_isys_video_buffer(__ib) \
+ container_of(__ib, struct ipu_isys_video_buffer, ib)
+
+#define vb2_buffer_to_ipu_isys_video_buffer(__vb) \
+ container_of(to_vb2_v4l2_buffer(__vb), \
+ struct ipu_isys_video_buffer, vb_v4l2)
+
+#define ipu_isys_buffer_to_vb2_buffer(__ib) \
+ (&ipu_isys_to_isys_video_buffer(__ib)->vb_v4l2.vb2_buf)
+
+#define vb2_buffer_to_ipu_isys_buffer(__vb) \
+ (&vb2_buffer_to_ipu_isys_video_buffer(__vb)->ib)
+
+#define ipu_isys_buffer_to_private_buffer(__ib) \
+ container_of(__ib, struct ipu_isys_private_buffer, ib)
+
+struct ipu_isys_request {
+ struct media_device_request req;
+ /* serialise access to buffers */
+ spinlock_t lock;
+ struct list_head buffers; /* struct ipu_isys_buffer.head */
+ bool dispatched;
+ /*
+ * struct ipu_isys.requests;
+ * struct ipu_isys_pipeline.struct.*
+ */
+ struct list_head head;
+};
+
+#define to_ipu_isys_request(__req) \
+ container_of(__req, struct ipu_isys_request, req)
+
+int ipu_isys_buf_prepare(struct vb2_buffer *vb);
+
+void ipu_isys_buffer_list_queue(struct ipu_isys_buffer_list *bl,
+ unsigned long op_flags,
+ enum vb2_buffer_state state);
+struct ipu_isys_request *
+ipu_isys_next_queued_request(struct ipu_isys_pipeline *ip);
+void
+ipu_isys_buffer_to_fw_frame_buff_pin(struct vb2_buffer *vb,
+ struct ipu_fw_isys_frame_buff_set_abi *
+ set);
+void
+ipu_isys_buffer_to_fw_frame_buff(struct ipu_fw_isys_frame_buff_set_abi *set,
+ struct ipu_isys_pipeline *ip,
+ struct ipu_isys_buffer_list *bl);
+int ipu_isys_link_fmt_validate(struct ipu_isys_queue *aq);
+
+void
+ipu_isys_buf_calc_sequence_time(struct ipu_isys_buffer *ib,
+ struct ipu_fw_isys_resp_info_abi *info);
+void ipu_isys_queue_buf_done(struct ipu_isys_buffer *ib);
+void ipu_isys_queue_buf_ready(struct ipu_isys_pipeline *ip,
+ struct ipu_fw_isys_resp_info_abi *info);
+void
+ipu_isys_queue_short_packet_ready(struct ipu_isys_pipeline *ip,
+ struct ipu_fw_isys_resp_info_abi *inf);
+
+int ipu_isys_queue_init(struct ipu_isys_queue *aq);
+void ipu_isys_queue_cleanup(struct ipu_isys_queue *aq);
+
+#endif /* IPU_ISYS_QUEUE_H */
diff --git a/drivers/media/pci/intel/ipu-isys-subdev.c b/drivers/media/pci/intel/ipu-isys-subdev.c
new file mode 100644
index 0000000000000..7f00fa8172524
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-isys-subdev.c
@@ -0,0 +1,650 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2013 - 2020 Intel Corporation
+
+#include <linux/types.h>
+#include <linux/videodev2.h>
+
+#include <media/media-entity.h>
+
+#include <uapi/linux/media-bus-format.h>
+
+#include "ipu-isys.h"
+#include "ipu-isys-video.h"
+#include "ipu-isys-subdev.h"
+
+unsigned int ipu_isys_mbus_code_to_bpp(u32 code)
+{
+ switch (code) {
+ case MEDIA_BUS_FMT_RGB888_1X24:
+ return 24;
+ case MEDIA_BUS_FMT_YUYV10_1X20:
+ return 20;
+ case MEDIA_BUS_FMT_Y10_1X10:
+ case MEDIA_BUS_FMT_RGB565_1X16:
+ case MEDIA_BUS_FMT_UYVY8_1X16:
+ case MEDIA_BUS_FMT_YUYV8_1X16:
+ return 16;
+ case MEDIA_BUS_FMT_SBGGR12_1X12:
+ case MEDIA_BUS_FMT_SGBRG12_1X12:
+ case MEDIA_BUS_FMT_SGRBG12_1X12:
+ case MEDIA_BUS_FMT_SRGGB12_1X12:
+ return 12;
+ case MEDIA_BUS_FMT_SBGGR10_1X10:
+ case MEDIA_BUS_FMT_SGBRG10_1X10:
+ case MEDIA_BUS_FMT_SGRBG10_1X10:
+ case MEDIA_BUS_FMT_SRGGB10_1X10:
+ return 10;
+ case MEDIA_BUS_FMT_SBGGR8_1X8:
+ case MEDIA_BUS_FMT_SGBRG8_1X8:
+ case MEDIA_BUS_FMT_SGRBG8_1X8:
+ case MEDIA_BUS_FMT_SRGGB8_1X8:
+ case MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8:
+ case MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8:
+ case MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8:
+ case MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8:
+ return 8;
+ default:
+ WARN_ON(1);
+ return -EINVAL;
+ }
+}
+
+unsigned int ipu_isys_mbus_code_to_mipi(u32 code)
+{
+ switch (code) {
+ case MEDIA_BUS_FMT_RGB565_1X16:
+ return IPU_ISYS_MIPI_CSI2_TYPE_RGB565;
+ case MEDIA_BUS_FMT_RGB888_1X24:
+ return IPU_ISYS_MIPI_CSI2_TYPE_RGB888;
+ case MEDIA_BUS_FMT_YUYV10_1X20:
+ return IPU_ISYS_MIPI_CSI2_TYPE_YUV422_10;
+ case MEDIA_BUS_FMT_UYVY8_1X16:
+ case MEDIA_BUS_FMT_YUYV8_1X16:
+ return IPU_ISYS_MIPI_CSI2_TYPE_YUV422_8;
+ case MEDIA_BUS_FMT_SBGGR12_1X12:
+ case MEDIA_BUS_FMT_SGBRG12_1X12:
+ case MEDIA_BUS_FMT_SGRBG12_1X12:
+ case MEDIA_BUS_FMT_SRGGB12_1X12:
+ return IPU_ISYS_MIPI_CSI2_TYPE_RAW12;
+ case MEDIA_BUS_FMT_Y10_1X10:
+ case MEDIA_BUS_FMT_SBGGR10_1X10:
+ case MEDIA_BUS_FMT_SGBRG10_1X10:
+ case MEDIA_BUS_FMT_SGRBG10_1X10:
+ case MEDIA_BUS_FMT_SRGGB10_1X10:
+ return IPU_ISYS_MIPI_CSI2_TYPE_RAW10;
+ case MEDIA_BUS_FMT_SBGGR8_1X8:
+ case MEDIA_BUS_FMT_SGBRG8_1X8:
+ case MEDIA_BUS_FMT_SGRBG8_1X8:
+ case MEDIA_BUS_FMT_SRGGB8_1X8:
+ return IPU_ISYS_MIPI_CSI2_TYPE_RAW8;
+ case MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8:
+ case MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8:
+ case MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8:
+ case MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8:
+ return IPU_ISYS_MIPI_CSI2_TYPE_USER_DEF(1);
+ default:
+ WARN_ON(1);
+ return -EINVAL;
+ }
+}
+
+enum ipu_isys_subdev_pixelorder ipu_isys_subdev_get_pixelorder(u32 code)
+{
+ switch (code) {
+ case MEDIA_BUS_FMT_SBGGR12_1X12:
+ case MEDIA_BUS_FMT_SBGGR10_1X10:
+ case MEDIA_BUS_FMT_SBGGR8_1X8:
+ case MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8:
+ return IPU_ISYS_SUBDEV_PIXELORDER_BGGR;
+ case MEDIA_BUS_FMT_SGBRG12_1X12:
+ case MEDIA_BUS_FMT_SGBRG10_1X10:
+ case MEDIA_BUS_FMT_SGBRG8_1X8:
+ case MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8:
+ return IPU_ISYS_SUBDEV_PIXELORDER_GBRG;
+ case MEDIA_BUS_FMT_SGRBG12_1X12:
+ case MEDIA_BUS_FMT_SGRBG10_1X10:
+ case MEDIA_BUS_FMT_SGRBG8_1X8:
+ case MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8:
+ return IPU_ISYS_SUBDEV_PIXELORDER_GRBG;
+ case MEDIA_BUS_FMT_SRGGB12_1X12:
+ case MEDIA_BUS_FMT_SRGGB10_1X10:
+ case MEDIA_BUS_FMT_SRGGB8_1X8:
+ case MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8:
+ return IPU_ISYS_SUBDEV_PIXELORDER_RGGB;
+ default:
+ WARN_ON(1);
+ return -EINVAL;
+ }
+}
+
+u32 ipu_isys_subdev_code_to_uncompressed(u32 sink_code)
+{
+ switch (sink_code) {
+ case MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8:
+ return MEDIA_BUS_FMT_SBGGR10_1X10;
+ case MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8:
+ return MEDIA_BUS_FMT_SGBRG10_1X10;
+ case MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8:
+ return MEDIA_BUS_FMT_SGRBG10_1X10;
+ case MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8:
+ return MEDIA_BUS_FMT_SRGGB10_1X10;
+ default:
+ return sink_code;
+ }
+}
+
+struct v4l2_mbus_framefmt *__ipu_isys_get_ffmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ unsigned int pad,
+ unsigned int which)
+{
+ struct ipu_isys_subdev *asd = to_ipu_isys_subdev(sd);
+
+ if (which == V4L2_SUBDEV_FORMAT_ACTIVE)
+ return &asd->ffmt[pad];
+ else
+ return v4l2_subdev_get_try_format(sd, sd_state, pad);
+}
+
+struct v4l2_rect *__ipu_isys_get_selection(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ unsigned int target,
+ unsigned int pad, unsigned int which)
+{
+ struct ipu_isys_subdev *asd = to_ipu_isys_subdev(sd);
+
+ if (which == V4L2_SUBDEV_FORMAT_ACTIVE) {
+ switch (target) {
+ case V4L2_SEL_TGT_CROP:
+ return &asd->crop[pad];
+ case V4L2_SEL_TGT_COMPOSE:
+ return &asd->compose[pad];
+ }
+ } else {
+ switch (target) {
+ case V4L2_SEL_TGT_CROP:
+ return v4l2_subdev_get_try_crop(sd, sd_state, pad);
+ case V4L2_SEL_TGT_COMPOSE:
+ return v4l2_subdev_get_try_compose(sd, sd_state, pad);
+ }
+ }
+ WARN_ON(1);
+ return NULL;
+}
+
+static int target_valid(struct v4l2_subdev *sd, unsigned int target,
+ unsigned int pad)
+{
+ struct ipu_isys_subdev *asd = to_ipu_isys_subdev(sd);
+
+ switch (target) {
+ case V4L2_SEL_TGT_CROP:
+ return asd->valid_tgts[pad].crop;
+ case V4L2_SEL_TGT_COMPOSE:
+ return asd->valid_tgts[pad].compose;
+ default:
+ return 0;
+ }
+}
+
+int ipu_isys_subdev_fmt_propagate(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_mbus_framefmt *ffmt,
+ struct v4l2_rect *r,
+ enum isys_subdev_prop_tgt tgt,
+ unsigned int pad, unsigned int which)
+{
+ struct ipu_isys_subdev *asd = to_ipu_isys_subdev(sd);
+ struct v4l2_mbus_framefmt **ffmts = NULL;
+ struct v4l2_rect **crops = NULL;
+ struct v4l2_rect **compose = NULL;
+ unsigned int i;
+ int rval = 0;
+
+ if (tgt == IPU_ISYS_SUBDEV_PROP_TGT_NR_OF)
+ return 0;
+
+ if (WARN_ON(pad >= sd->entity.num_pads))
+ return -EINVAL;
+
+ ffmts = kcalloc(sd->entity.num_pads,
+ sizeof(*ffmts), GFP_KERNEL);
+ if (!ffmts) {
+ rval = -ENOMEM;
+ goto out_subdev_fmt_propagate;
+ }
+ crops = kcalloc(sd->entity.num_pads,
+ sizeof(*crops), GFP_KERNEL);
+ if (!crops) {
+ rval = -ENOMEM;
+ goto out_subdev_fmt_propagate;
+ }
+ compose = kcalloc(sd->entity.num_pads,
+ sizeof(*compose), GFP_KERNEL);
+ if (!compose) {
+ rval = -ENOMEM;
+ goto out_subdev_fmt_propagate;
+ }
+
+ for (i = 0; i < sd->entity.num_pads; i++) {
+ ffmts[i] = __ipu_isys_get_ffmt(sd, sd_state, i, which);
+ crops[i] = __ipu_isys_get_selection(sd, sd_state,
+ V4L2_SEL_TGT_CROP, i, which);
+ compose[i] = __ipu_isys_get_selection(sd, sd_state,
+ V4L2_SEL_TGT_COMPOSE, i, which);
+ }
+
+ switch (tgt) {
+ case IPU_ISYS_SUBDEV_PROP_TGT_SINK_FMT:
+ crops[pad]->left = 0;
+ crops[pad]->top = 0;
+ crops[pad]->width = ffmt->width;
+ crops[pad]->height = ffmt->height;
+ rval = ipu_isys_subdev_fmt_propagate(sd, sd_state, ffmt,
+ crops[pad], tgt + 1, pad, which);
+ goto out_subdev_fmt_propagate;
+ case IPU_ISYS_SUBDEV_PROP_TGT_SINK_CROP:
+ if (WARN_ON(sd->entity.pads[pad].flags & MEDIA_PAD_FL_SOURCE))
+ goto out_subdev_fmt_propagate;
+
+ compose[pad]->left = 0;
+ compose[pad]->top = 0;
+ compose[pad]->width = r->width;
+ compose[pad]->height = r->height;
+ rval = ipu_isys_subdev_fmt_propagate(sd, sd_state, ffmt,
+ compose[pad], tgt + 1, pad, which);
+ goto out_subdev_fmt_propagate;
+ case IPU_ISYS_SUBDEV_PROP_TGT_SINK_COMPOSE:
+ if (WARN_ON(sd->entity.pads[pad].flags & MEDIA_PAD_FL_SOURCE)) {
+ rval = -EINVAL;
+ goto out_subdev_fmt_propagate;
+ }
+
+ for (i = 1; i < sd->entity.num_pads; i++) {
+ if (!(sd->entity.pads[i].flags &
+ MEDIA_PAD_FL_SOURCE))
+ continue;
+
+ compose[i]->left = 0;
+ compose[i]->top = 0;
+ compose[i]->width = r->width;
+ compose[i]->height = r->height;
+ rval = ipu_isys_subdev_fmt_propagate(sd, sd_state,
+ ffmt, compose[i], tgt + 1, i, which);
+ if (rval)
+ goto out_subdev_fmt_propagate;
+ }
+ goto out_subdev_fmt_propagate;
+ case IPU_ISYS_SUBDEV_PROP_TGT_SOURCE_COMPOSE:
+ if (WARN_ON(sd->entity.pads[pad].flags & MEDIA_PAD_FL_SINK)) {
+ rval = -EINVAL;
+ goto out_subdev_fmt_propagate;
+ }
+
+ crops[pad]->left = 0;
+ crops[pad]->top = 0;
+ crops[pad]->width = r->width;
+ crops[pad]->height = r->height;
+ rval = ipu_isys_subdev_fmt_propagate(sd, sd_state, ffmt,
+ crops[pad], tgt + 1, pad, which);
+ goto out_subdev_fmt_propagate;
+ case IPU_ISYS_SUBDEV_PROP_TGT_SOURCE_CROP:{
+ struct v4l2_subdev_format fmt = {
+ .which = which,
+ .pad = pad,
+ .format = {
+ .width = r->width,
+ .height = r->height,
+ /*
+ * Either use the code from sink pad
+ * or the current one.
+ */
+ .code = ffmt ? ffmt->code :
+ ffmts[pad]->code,
+ .field = ffmt ? ffmt->field :
+ ffmts[pad]->field,
+ },
+ };
+
+ asd->set_ffmt(sd, sd_state, &fmt);
+ goto out_subdev_fmt_propagate;
+ }
+ }
+
+out_subdev_fmt_propagate:
+ kfree(ffmts);
+ kfree(crops);
+ kfree(compose);
+ return rval;
+}
+
+int ipu_isys_subdev_set_ffmt_default(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct v4l2_mbus_framefmt *ffmt =
+ __ipu_isys_get_ffmt(sd, sd_state, fmt->pad, fmt->which);
+
+ /* No propagation for non-zero pads. */
+ if (fmt->pad) {
+ struct v4l2_mbus_framefmt *sink_ffmt =
+ __ipu_isys_get_ffmt(sd, sd_state, 0, fmt->which);
+
+ ffmt->width = sink_ffmt->width;
+ ffmt->height = sink_ffmt->height;
+ ffmt->code = sink_ffmt->code;
+ ffmt->field = sink_ffmt->field;
+
+ return 0;
+ }
+
+ ffmt->width = fmt->format.width;
+ ffmt->height = fmt->format.height;
+ ffmt->code = fmt->format.code;
+ ffmt->field = fmt->format.field;
+
+ return ipu_isys_subdev_fmt_propagate(sd, sd_state, &fmt->format, NULL,
+ IPU_ISYS_SUBDEV_PROP_TGT_SINK_FMT,
+ fmt->pad, fmt->which);
+}
+
+int __ipu_isys_subdev_set_ffmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct ipu_isys_subdev *asd = to_ipu_isys_subdev(sd);
+ struct v4l2_mbus_framefmt *ffmt =
+ __ipu_isys_get_ffmt(sd, sd_state, fmt->pad, fmt->which);
+ u32 code = asd->supported_codes[fmt->pad][0];
+ unsigned int i;
+
+ WARN_ON(!mutex_is_locked(&asd->mutex));
+
+ fmt->format.width = clamp(fmt->format.width, IPU_ISYS_MIN_WIDTH,
+ IPU_ISYS_MAX_WIDTH);
+ fmt->format.height = clamp(fmt->format.height,
+ IPU_ISYS_MIN_HEIGHT, IPU_ISYS_MAX_HEIGHT);
+
+ for (i = 0; asd->supported_codes[fmt->pad][i]; i++) {
+ if (asd->supported_codes[fmt->pad][i] == fmt->format.code) {
+ code = asd->supported_codes[fmt->pad][i];
+ break;
+ }
+ }
+
+ fmt->format.code = code;
+
+ asd->set_ffmt(sd, sd_state, fmt);
+
+ fmt->format = *ffmt;
+
+ return 0;
+}
+
+int ipu_isys_subdev_set_ffmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct ipu_isys_subdev *asd = to_ipu_isys_subdev(sd);
+ int rval;
+
+ mutex_lock(&asd->mutex);
+ rval = __ipu_isys_subdev_set_ffmt(sd, sd_state, fmt);
+ mutex_unlock(&asd->mutex);
+
+ return rval;
+}
+
+int ipu_isys_subdev_get_ffmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct ipu_isys_subdev *asd = to_ipu_isys_subdev(sd);
+
+ mutex_lock(&asd->mutex);
+ fmt->format = *__ipu_isys_get_ffmt(sd, sd_state, fmt->pad,
+ fmt->which);
+ mutex_unlock(&asd->mutex);
+
+ return 0;
+}
+
+int ipu_isys_subdev_set_sel(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_selection *sel)
+{
+ struct ipu_isys_subdev *asd = to_ipu_isys_subdev(sd);
+ struct media_pad *pad = &asd->sd.entity.pads[sel->pad];
+ struct v4l2_rect *r, __r = { 0 };
+ unsigned int tgt;
+
+ if (!target_valid(sd, sel->target, sel->pad))
+ return -EINVAL;
+
+ switch (sel->target) {
+ case V4L2_SEL_TGT_CROP:
+ if (pad->flags & MEDIA_PAD_FL_SINK) {
+ struct v4l2_mbus_framefmt *ffmt =
+ __ipu_isys_get_ffmt(sd, sd_state, sel->pad,
+ sel->which);
+
+ __r.width = ffmt->width;
+ __r.height = ffmt->height;
+ r = &__r;
+ tgt = IPU_ISYS_SUBDEV_PROP_TGT_SINK_CROP;
+ } else {
+ /* 0 is the sink pad. */
+ r = __ipu_isys_get_selection(sd, sd_state, sel->target, 0,
+ sel->which);
+ tgt = IPU_ISYS_SUBDEV_PROP_TGT_SOURCE_CROP;
+ }
+
+ break;
+ case V4L2_SEL_TGT_COMPOSE:
+ if (pad->flags & MEDIA_PAD_FL_SINK) {
+ r = __ipu_isys_get_selection(sd, sd_state, V4L2_SEL_TGT_CROP,
+ sel->pad, sel->which);
+ tgt = IPU_ISYS_SUBDEV_PROP_TGT_SINK_COMPOSE;
+ } else {
+ r = __ipu_isys_get_selection(sd, sd_state,
+ V4L2_SEL_TGT_COMPOSE, 0,
+ sel->which);
+ tgt = IPU_ISYS_SUBDEV_PROP_TGT_SOURCE_COMPOSE;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ sel->r.width = clamp(sel->r.width, IPU_ISYS_MIN_WIDTH, r->width);
+ sel->r.height = clamp(sel->r.height, IPU_ISYS_MIN_HEIGHT, r->height);
+ *__ipu_isys_get_selection(sd, sd_state, sel->target, sel->pad,
+ sel->which) = sel->r;
+ return ipu_isys_subdev_fmt_propagate(sd, sd_state, NULL, &sel->r, tgt,
+ sel->pad, sel->which);
+}
+
+int ipu_isys_subdev_get_sel(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_selection *sel)
+{
+ if (!target_valid(sd, sel->target, sel->pad))
+ return -EINVAL;
+
+ sel->r = *__ipu_isys_get_selection(sd, sd_state, sel->target,
+ sel->pad, sel->which);
+
+ return 0;
+}
+
+int ipu_isys_subdev_enum_mbus_code(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_mbus_code_enum *code)
+{
+ struct ipu_isys_subdev *asd = to_ipu_isys_subdev(sd);
+ const u32 *supported_codes = asd->supported_codes[code->pad];
+ u32 index;
+
+ for (index = 0; supported_codes[index]; index++) {
+ if (index == code->index) {
+ code->code = supported_codes[index];
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
+/*
+ * Besides validating the link, figure out the external pad and the
+ * ISYS FW ABI source.
+ */
+int ipu_isys_subdev_link_validate(struct v4l2_subdev *sd,
+ struct media_link *link,
+ struct v4l2_subdev_format *source_fmt,
+ struct v4l2_subdev_format *sink_fmt)
+{
+ struct v4l2_subdev *source_sd =
+ media_entity_to_v4l2_subdev(link->source->entity);
+ struct ipu_isys_pipeline *ip = container_of(sd->entity.pipe,
+ struct ipu_isys_pipeline,
+ pipe);
+ struct ipu_isys_subdev *asd = to_ipu_isys_subdev(sd);
+
+ if (!source_sd)
+ return -ENODEV;
+ if (strncmp(source_sd->name, IPU_ISYS_ENTITY_PREFIX,
+ strlen(IPU_ISYS_ENTITY_PREFIX)) != 0) {
+ /*
+ * source_sd isn't ours --- sd must be the external
+ * sub-device.
+ */
+ ip->external = link->source;
+ ip->source = to_ipu_isys_subdev(sd)->source;
+ dev_dbg(&asd->isys->adev->dev, "%s: using source %d\n",
+ sd->entity.name, ip->source);
+ } else if (source_sd->entity.num_pads == 1) {
+ /* All internal sources have a single pad. */
+ ip->external = link->source;
+ ip->source = to_ipu_isys_subdev(source_sd)->source;
+
+ dev_dbg(&asd->isys->adev->dev, "%s: using source %d\n",
+ sd->entity.name, ip->source);
+ }
+
+ if (asd->isl_mode != IPU_ISL_OFF)
+ ip->isl_mode = asd->isl_mode;
+
+ return v4l2_subdev_link_validate_default(sd, link, source_fmt,
+ sink_fmt);
+}
+
+int ipu_isys_subdev_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+ struct ipu_isys_subdev *asd = to_ipu_isys_subdev(sd);
+ unsigned int i;
+
+ mutex_lock(&asd->mutex);
+
+ for (i = 0; i < asd->sd.entity.num_pads; i++) {
+ struct v4l2_mbus_framefmt *try_fmt =
+ v4l2_subdev_get_try_format(sd, fh->state, i);
+ struct v4l2_rect *try_crop =
+ v4l2_subdev_get_try_crop(sd, fh->state, i);
+ struct v4l2_rect *try_compose =
+ v4l2_subdev_get_try_compose(sd, fh->state, i);
+
+ *try_fmt = asd->ffmt[i];
+ *try_crop = asd->crop[i];
+ *try_compose = asd->compose[i];
+ }
+
+ mutex_unlock(&asd->mutex);
+
+ return 0;
+}
+
+int ipu_isys_subdev_close(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+ return 0;
+}
+
+int ipu_isys_subdev_init(struct ipu_isys_subdev *asd,
+ struct v4l2_subdev_ops *ops,
+ unsigned int nr_ctrls,
+ unsigned int num_pads,
+ unsigned int num_source,
+ unsigned int num_sink,
+ unsigned int sd_flags)
+{
+ int rval = -EINVAL;
+
+ mutex_init(&asd->mutex);
+
+ v4l2_subdev_init(&asd->sd, ops);
+
+ asd->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | sd_flags;
+ asd->sd.owner = THIS_MODULE;
+ asd->sd.entity.function = MEDIA_ENT_F_VID_IF_BRIDGE;
+
+ asd->nsources = num_source;
+ asd->nsinks = num_sink;
+
+ asd->pad = devm_kcalloc(&asd->isys->adev->dev, num_pads,
+ sizeof(*asd->pad), GFP_KERNEL);
+
+ asd->ffmt = devm_kcalloc(&asd->isys->adev->dev, num_pads,
+ sizeof(*asd->ffmt), GFP_KERNEL);
+
+ asd->crop = devm_kcalloc(&asd->isys->adev->dev, num_pads,
+ sizeof(*asd->crop), GFP_KERNEL);
+
+ asd->compose = devm_kcalloc(&asd->isys->adev->dev, num_pads,
+ sizeof(*asd->compose), GFP_KERNEL);
+
+ asd->valid_tgts = devm_kcalloc(&asd->isys->adev->dev, num_pads,
+ sizeof(*asd->valid_tgts), GFP_KERNEL);
+ if (!asd->pad || !asd->ffmt || !asd->crop || !asd->compose ||
+ !asd->valid_tgts)
+ return -ENOMEM;
+
+ rval = media_entity_pads_init(&asd->sd.entity, num_pads, asd->pad);
+ if (rval)
+ goto out_mutex_destroy;
+
+ if (asd->ctrl_init) {
+ rval = v4l2_ctrl_handler_init(&asd->ctrl_handler, nr_ctrls);
+ if (rval)
+ goto out_media_entity_cleanup;
+
+ asd->ctrl_init(&asd->sd);
+ if (asd->ctrl_handler.error) {
+ rval = asd->ctrl_handler.error;
+ goto out_v4l2_ctrl_handler_free;
+ }
+
+ asd->sd.ctrl_handler = &asd->ctrl_handler;
+ }
+
+ asd->source = -1;
+
+ return 0;
+
+out_v4l2_ctrl_handler_free:
+ v4l2_ctrl_handler_free(&asd->ctrl_handler);
+
+out_media_entity_cleanup:
+ media_entity_cleanup(&asd->sd.entity);
+
+out_mutex_destroy:
+ mutex_destroy(&asd->mutex);
+
+ return rval;
+}
+
+void ipu_isys_subdev_cleanup(struct ipu_isys_subdev *asd)
+{
+ media_entity_cleanup(&asd->sd.entity);
+ v4l2_ctrl_handler_free(&asd->ctrl_handler);
+ mutex_destroy(&asd->mutex);
+}
diff --git a/drivers/media/pci/intel/ipu-isys-subdev.h b/drivers/media/pci/intel/ipu-isys-subdev.h
new file mode 100644
index 0000000000000..053ac094642d5
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-isys-subdev.h
@@ -0,0 +1,152 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2013 - 2020 Intel Corporation */
+
+#ifndef IPU_ISYS_SUBDEV_H
+#define IPU_ISYS_SUBDEV_H
+
+#include <linux/mutex.h>
+
+#include <media/media-entity.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+
+#include "ipu-isys-queue.h"
+
+#define IPU_ISYS_MIPI_CSI2_TYPE_NULL 0x10
+#define IPU_ISYS_MIPI_CSI2_TYPE_BLANKING 0x11
+#define IPU_ISYS_MIPI_CSI2_TYPE_EMBEDDED8 0x12
+#define IPU_ISYS_MIPI_CSI2_TYPE_YUV422_8 0x1e
+#define IPU_ISYS_MIPI_CSI2_TYPE_YUV422_10 0x1f
+#define IPU_ISYS_MIPI_CSI2_TYPE_RGB565 0x22
+#define IPU_ISYS_MIPI_CSI2_TYPE_RGB888 0x24
+#define IPU_ISYS_MIPI_CSI2_TYPE_RAW6 0x28
+#define IPU_ISYS_MIPI_CSI2_TYPE_RAW7 0x29
+#define IPU_ISYS_MIPI_CSI2_TYPE_RAW8 0x2a
+#define IPU_ISYS_MIPI_CSI2_TYPE_RAW10 0x2b
+#define IPU_ISYS_MIPI_CSI2_TYPE_RAW12 0x2c
+#define IPU_ISYS_MIPI_CSI2_TYPE_RAW14 0x2d
+/* 1-8 */
+#define IPU_ISYS_MIPI_CSI2_TYPE_USER_DEF(i) (0x30 + (i) - 1)
+
+#define FMT_ENTRY (struct ipu_isys_fmt_entry [])
+
+enum isys_subdev_prop_tgt {
+ IPU_ISYS_SUBDEV_PROP_TGT_SINK_FMT,
+ IPU_ISYS_SUBDEV_PROP_TGT_SINK_CROP,
+ IPU_ISYS_SUBDEV_PROP_TGT_SINK_COMPOSE,
+ IPU_ISYS_SUBDEV_PROP_TGT_SOURCE_COMPOSE,
+ IPU_ISYS_SUBDEV_PROP_TGT_SOURCE_CROP,
+};
+
+#define IPU_ISYS_SUBDEV_PROP_TGT_NR_OF \
+ (IPU_ISYS_SUBDEV_PROP_TGT_SOURCE_CROP + 1)
+
+enum ipu_isl_mode {
+ IPU_ISL_OFF = 0, /* SOC BE */
+ IPU_ISL_CSI2_BE, /* RAW BE */
+};
+
+enum ipu_be_mode {
+ IPU_BE_RAW = 0,
+ IPU_BE_SOC
+};
+
+enum ipu_isys_subdev_pixelorder {
+ IPU_ISYS_SUBDEV_PIXELORDER_BGGR = 0,
+ IPU_ISYS_SUBDEV_PIXELORDER_GBRG,
+ IPU_ISYS_SUBDEV_PIXELORDER_GRBG,
+ IPU_ISYS_SUBDEV_PIXELORDER_RGGB,
+};
+
+struct ipu_isys;
+
+struct ipu_isys_subdev {
+ /* Serialise access to any other field in the struct */
+ struct mutex mutex;
+ struct v4l2_subdev sd;
+ struct ipu_isys *isys;
+ u32 const *const *supported_codes;
+ struct media_pad *pad;
+ struct v4l2_mbus_framefmt *ffmt;
+ struct v4l2_rect *crop;
+ struct v4l2_rect *compose;
+ unsigned int nsinks;
+ unsigned int nsources;
+ struct v4l2_ctrl_handler ctrl_handler;
+ void (*ctrl_init)(struct v4l2_subdev *sd);
+ void (*set_ffmt)(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt);
+ struct {
+ bool crop;
+ bool compose;
+ } *valid_tgts;
+ enum ipu_isl_mode isl_mode;
+ enum ipu_be_mode be_mode;
+ int source; /* SSI stream source; -1 if unset */
+};
+
+#define to_ipu_isys_subdev(__sd) \
+ container_of(__sd, struct ipu_isys_subdev, sd)
+
+struct v4l2_mbus_framefmt *__ipu_isys_get_ffmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ unsigned int pad,
+ unsigned int which);
+
+unsigned int ipu_isys_mbus_code_to_bpp(u32 code);
+unsigned int ipu_isys_mbus_code_to_mipi(u32 code);
+u32 ipu_isys_subdev_code_to_uncompressed(u32 sink_code);
+
+enum ipu_isys_subdev_pixelorder ipu_isys_subdev_get_pixelorder(u32 code);
+
+int ipu_isys_subdev_fmt_propagate(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_mbus_framefmt *ffmt,
+ struct v4l2_rect *r,
+ enum isys_subdev_prop_tgt tgt,
+ unsigned int pad, unsigned int which);
+
+int ipu_isys_subdev_set_ffmt_default(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt);
+int __ipu_isys_subdev_set_ffmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt);
+struct v4l2_rect *__ipu_isys_get_selection(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ unsigned int target,
+ unsigned int pad,
+ unsigned int which);
+int ipu_isys_subdev_set_ffmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt);
+int ipu_isys_subdev_get_ffmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt);
+int ipu_isys_subdev_get_sel(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_selection *sel);
+int ipu_isys_subdev_set_sel(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_selection *sel);
+int ipu_isys_subdev_enum_mbus_code(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_mbus_code_enum
+ *code);
+int ipu_isys_subdev_link_validate(struct v4l2_subdev *sd,
+ struct media_link *link,
+ struct v4l2_subdev_format *source_fmt,
+ struct v4l2_subdev_format *sink_fmt);
+
+int ipu_isys_subdev_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh);
+int ipu_isys_subdev_close(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh);
+int ipu_isys_subdev_init(struct ipu_isys_subdev *asd,
+ struct v4l2_subdev_ops *ops,
+ unsigned int nr_ctrls,
+ unsigned int num_pads,
+ unsigned int num_source,
+ unsigned int num_sink,
+ unsigned int sd_flags);
+void ipu_isys_subdev_cleanup(struct ipu_isys_subdev *asd);
+#endif /* IPU_ISYS_SUBDEV_H */
diff --git a/drivers/media/pci/intel/ipu-isys-tpg.c b/drivers/media/pci/intel/ipu-isys-tpg.c
new file mode 100644
index 0000000000000..b77ea5d558815
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-isys-tpg.c
@@ -0,0 +1,311 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2013 - 2020 Intel Corporation
+
+#include <linux/device.h>
+#include <linux/module.h>
+
+#include <media/media-entity.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-event.h>
+
+#include "ipu.h"
+#include "ipu-bus.h"
+#include "ipu-isys.h"
+#include "ipu-isys-subdev.h"
+#include "ipu-isys-tpg.h"
+#include "ipu-isys-video.h"
+#include "ipu-platform-isys-csi2-reg.h"
+
+static const u32 tpg_supported_codes_pad[] = {
+ MEDIA_BUS_FMT_SBGGR8_1X8,
+ MEDIA_BUS_FMT_SGBRG8_1X8,
+ MEDIA_BUS_FMT_SGRBG8_1X8,
+ MEDIA_BUS_FMT_SRGGB8_1X8,
+ MEDIA_BUS_FMT_SBGGR10_1X10,
+ MEDIA_BUS_FMT_SGBRG10_1X10,
+ MEDIA_BUS_FMT_SGRBG10_1X10,
+ MEDIA_BUS_FMT_SRGGB10_1X10,
+ 0,
+};
+
+static const u32 *tpg_supported_codes[] = {
+ tpg_supported_codes_pad,
+};
+
+static struct v4l2_subdev_internal_ops tpg_sd_internal_ops = {
+ .open = ipu_isys_subdev_open,
+ .close = ipu_isys_subdev_close,
+};
+
+static const struct v4l2_subdev_video_ops tpg_sd_video_ops = {
+ .s_stream = tpg_set_stream,
+};
+
+static int ipu_isys_tpg_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct ipu_isys_tpg *tpg = container_of(container_of(ctrl->handler,
+ struct
+ ipu_isys_subdev,
+ ctrl_handler),
+ struct ipu_isys_tpg, asd);
+
+ switch (ctrl->id) {
+ case V4L2_CID_HBLANK:
+ writel(ctrl->val, tpg->base + MIPI_GEN_REG_SYNG_HBLANK_CYC);
+ break;
+ case V4L2_CID_VBLANK:
+ writel(ctrl->val, tpg->base + MIPI_GEN_REG_SYNG_VBLANK_CYC);
+ break;
+ case V4L2_CID_TEST_PATTERN:
+ writel(ctrl->val, tpg->base + MIPI_GEN_REG_TPG_MODE);
+ break;
+ }
+
+ return 0;
+}
+
+static const struct v4l2_ctrl_ops ipu_isys_tpg_ctrl_ops = {
+ .s_ctrl = ipu_isys_tpg_s_ctrl,
+};
+
+static s64 ipu_isys_tpg_rate(struct ipu_isys_tpg *tpg, unsigned int bpp)
+{
+ return MIPI_GEN_PPC * IPU_ISYS_FREQ / bpp;
+}
+
+static const char *const tpg_mode_items[] = {
+ "Ramp",
+ "Checkerboard", /* Does not work, disabled. */
+ "Frame Based Colour",
+};
+
+static struct v4l2_ctrl_config tpg_mode = {
+ .ops = &ipu_isys_tpg_ctrl_ops,
+ .id = V4L2_CID_TEST_PATTERN,
+ .name = "Test Pattern",
+ .type = V4L2_CTRL_TYPE_MENU,
+ .min = 0,
+ .max = ARRAY_SIZE(tpg_mode_items) - 1,
+ .def = 0,
+ .menu_skip_mask = 0x2,
+ .qmenu = tpg_mode_items,
+};
+
+static const struct v4l2_ctrl_config csi2_header_cfg = {
+ .id = V4L2_CID_IPU_STORE_CSI2_HEADER,
+ .name = "Store CSI-2 Headers",
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .min = 0,
+ .max = 1,
+ .step = 1,
+ .def = 1,
+};
+
+static void ipu_isys_tpg_init_controls(struct v4l2_subdev *sd)
+{
+ struct ipu_isys_tpg *tpg = to_ipu_isys_tpg(sd);
+ int hblank;
+ u64 default_pixel_rate;
+
+ hblank = 1024;
+
+ tpg->hblank = v4l2_ctrl_new_std(&tpg->asd.ctrl_handler,
+ &ipu_isys_tpg_ctrl_ops,
+ V4L2_CID_HBLANK, 8, 65535, 1, hblank);
+
+ tpg->vblank = v4l2_ctrl_new_std(&tpg->asd.ctrl_handler,
+ &ipu_isys_tpg_ctrl_ops,
+ V4L2_CID_VBLANK, 8, 65535, 1, 1024);
+
+ default_pixel_rate = ipu_isys_tpg_rate(tpg, 8);
+ tpg->pixel_rate = v4l2_ctrl_new_std(&tpg->asd.ctrl_handler,
+ &ipu_isys_tpg_ctrl_ops,
+ V4L2_CID_PIXEL_RATE,
+ default_pixel_rate,
+ default_pixel_rate,
+ 1, default_pixel_rate);
+ if (tpg->pixel_rate) {
+ tpg->pixel_rate->cur.val = default_pixel_rate;
+ tpg->pixel_rate->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+ }
+
+ v4l2_ctrl_new_custom(&tpg->asd.ctrl_handler, &tpg_mode, NULL);
+ tpg->store_csi2_header =
+ v4l2_ctrl_new_custom(&tpg->asd.ctrl_handler,
+ &csi2_header_cfg, NULL);
+}
+
+static void tpg_set_ffmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ fmt->format.field = V4L2_FIELD_NONE;
+ *__ipu_isys_get_ffmt(sd, sd_state, fmt->pad, fmt->which) = fmt->format;
+}
+
+static int ipu_isys_tpg_set_ffmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct ipu_isys_tpg *tpg = to_ipu_isys_tpg(sd);
+ __u32 code = tpg->asd.ffmt[TPG_PAD_SOURCE].code;
+ unsigned int bpp = ipu_isys_mbus_code_to_bpp(code);
+ s64 tpg_rate = ipu_isys_tpg_rate(tpg, bpp);
+ int rval;
+
+ mutex_lock(&tpg->asd.mutex);
+ rval = __ipu_isys_subdev_set_ffmt(sd, sd_state, fmt);
+ mutex_unlock(&tpg->asd.mutex);
+
+ if (rval || fmt->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return rval;
+
+ v4l2_ctrl_s_ctrl_int64(tpg->pixel_rate, tpg_rate);
+
+ return 0;
+}
+
+static const struct ipu_isys_pixelformat *
+ipu_isys_tpg_try_fmt(struct ipu_isys_video *av,
+ struct v4l2_pix_format_mplane *mpix)
+{
+ struct media_link *link = list_first_entry(&av->vdev.entity.links,
+ struct media_link, list);
+ struct v4l2_subdev *sd =
+ media_entity_to_v4l2_subdev(link->source->entity);
+ struct ipu_isys_tpg *tpg;
+
+ if (!sd)
+ return NULL;
+
+ tpg = to_ipu_isys_tpg(sd);
+
+ return ipu_isys_video_try_fmt_vid_mplane(av, mpix,
+ v4l2_ctrl_g_ctrl(tpg->store_csi2_header));
+}
+
+static const struct v4l2_subdev_pad_ops tpg_sd_pad_ops = {
+ .get_fmt = ipu_isys_subdev_get_ffmt,
+ .set_fmt = ipu_isys_tpg_set_ffmt,
+ .enum_mbus_code = ipu_isys_subdev_enum_mbus_code,
+};
+
+static int subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
+ struct v4l2_event_subscription *sub)
+{
+ switch (sub->type) {
+#ifdef IPU_TPG_FRAME_SYNC
+ case V4L2_EVENT_FRAME_SYNC:
+ return v4l2_event_subscribe(fh, sub, 10, NULL);
+#endif
+ case V4L2_EVENT_CTRL:
+ return v4l2_ctrl_subscribe_event(fh, sub);
+ default:
+ return -EINVAL;
+ }
+};
+
+/* V4L2 subdev core operations */
+static const struct v4l2_subdev_core_ops tpg_sd_core_ops = {
+ .subscribe_event = subscribe_event,
+ .unsubscribe_event = v4l2_event_subdev_unsubscribe,
+};
+
+static struct v4l2_subdev_ops tpg_sd_ops = {
+ .core = &tpg_sd_core_ops,
+ .video = &tpg_sd_video_ops,
+ .pad = &tpg_sd_pad_ops,
+};
+
+static struct media_entity_operations tpg_entity_ops = {
+ .link_validate = v4l2_subdev_link_validate,
+};
+
+void ipu_isys_tpg_cleanup(struct ipu_isys_tpg *tpg)
+{
+ v4l2_device_unregister_subdev(&tpg->asd.sd);
+ ipu_isys_subdev_cleanup(&tpg->asd);
+ ipu_isys_video_cleanup(&tpg->av);
+}
+
+int ipu_isys_tpg_init(struct ipu_isys_tpg *tpg,
+ struct ipu_isys *isys,
+ void __iomem *base, void __iomem *sel,
+ unsigned int index)
+{
+ struct v4l2_subdev_format fmt = {
+ .which = V4L2_SUBDEV_FORMAT_ACTIVE,
+ .pad = TPG_PAD_SOURCE,
+ .format = {
+ .width = 4096,
+ .height = 3072,
+ },
+ };
+ int rval;
+
+ tpg->isys = isys;
+ tpg->base = base;
+ tpg->sel = sel;
+ tpg->index = index;
+
+ tpg->asd.sd.entity.ops = &tpg_entity_ops;
+ tpg->asd.ctrl_init = ipu_isys_tpg_init_controls;
+ tpg->asd.isys = isys;
+
+ rval = ipu_isys_subdev_init(&tpg->asd, &tpg_sd_ops, 5,
+ NR_OF_TPG_PADS,
+ NR_OF_TPG_SOURCE_PADS,
+ NR_OF_TPG_SINK_PADS,
+ V4L2_SUBDEV_FL_HAS_EVENTS);
+ if (rval)
+ return rval;
+
+ tpg->asd.sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
+ tpg->asd.pad[TPG_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
+
+ tpg->asd.source = IPU_FW_ISYS_STREAM_SRC_MIPIGEN_PORT0 + index;
+ tpg->asd.supported_codes = tpg_supported_codes;
+ tpg->asd.set_ffmt = tpg_set_ffmt;
+ ipu_isys_subdev_set_ffmt(&tpg->asd.sd, NULL, &fmt);
+
+ tpg->asd.sd.internal_ops = &tpg_sd_internal_ops;
+ snprintf(tpg->asd.sd.name, sizeof(tpg->asd.sd.name),
+ IPU_ISYS_ENTITY_PREFIX " TPG %u", index);
+ v4l2_set_subdevdata(&tpg->asd.sd, &tpg->asd);
+ rval = v4l2_device_register_subdev(&isys->v4l2_dev, &tpg->asd.sd);
+ if (rval) {
+ dev_info(&isys->adev->dev, "can't register v4l2 subdev\n");
+ goto fail;
+ }
+
+ snprintf(tpg->av.vdev.name, sizeof(tpg->av.vdev.name),
+ IPU_ISYS_ENTITY_PREFIX " TPG %u capture", index);
+ tpg->av.isys = isys;
+ tpg->av.aq.css_pin_type = IPU_FW_ISYS_PIN_TYPE_MIPI;
+ tpg->av.pfmts = ipu_isys_pfmts_packed;
+ tpg->av.try_fmt_vid_mplane = ipu_isys_tpg_try_fmt;
+ tpg->av.prepare_fw_stream =
+ ipu_isys_prepare_fw_cfg_default;
+ tpg->av.packed = true;
+ tpg->av.line_header_length = IPU_ISYS_CSI2_LONG_PACKET_HEADER_SIZE;
+ tpg->av.line_footer_length = IPU_ISYS_CSI2_LONG_PACKET_FOOTER_SIZE;
+ tpg->av.aq.buf_prepare = ipu_isys_buf_prepare;
+ tpg->av.aq.fill_frame_buff_set_pin =
+ ipu_isys_buffer_to_fw_frame_buff_pin;
+ tpg->av.aq.link_fmt_validate = ipu_isys_link_fmt_validate;
+ tpg->av.aq.vbq.buf_struct_size = sizeof(struct ipu_isys_video_buffer);
+
+ rval = ipu_isys_video_init(&tpg->av, &tpg->asd.sd.entity,
+ TPG_PAD_SOURCE, MEDIA_PAD_FL_SINK, 0);
+ if (rval) {
+ dev_info(&isys->adev->dev, "can't init video node\n");
+ goto fail;
+ }
+
+ return 0;
+
+fail:
+ ipu_isys_tpg_cleanup(tpg);
+
+ return rval;
+}
diff --git a/drivers/media/pci/intel/ipu-isys-tpg.h b/drivers/media/pci/intel/ipu-isys-tpg.h
new file mode 100644
index 0000000000000..332f087ed7748
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-isys-tpg.h
@@ -0,0 +1,99 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2013 - 2020 Intel Corporation */
+
+#ifndef IPU_ISYS_TPG_H
+#define IPU_ISYS_TPG_H
+
+#include <media/media-entity.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+
+#include "ipu-isys-subdev.h"
+#include "ipu-isys-video.h"
+#include "ipu-isys-queue.h"
+
+struct ipu_isys_tpg_pdata;
+struct ipu_isys;
+
+#define TPG_PAD_SOURCE 0
+#define NR_OF_TPG_PADS 1
+#define NR_OF_TPG_SOURCE_PADS 1
+#define NR_OF_TPG_SINK_PADS 0
+#define NR_OF_TPG_STREAMS 1
+
+/*
+ * PPC is 4 pixels for clock for RAW8, RAW10 and RAW12.
+ * Source: FW validation test code.
+ */
+#define MIPI_GEN_PPC 4
+
+#define MIPI_GEN_REG_COM_ENABLE 0x0
+#define MIPI_GEN_REG_COM_DTYPE 0x4
+/* RAW8, RAW10 or RAW12 */
+#define MIPI_GEN_COM_DTYPE_RAW(n) (((n) - 8) / 2)
+#define MIPI_GEN_REG_COM_VTYPE 0x8
+#define MIPI_GEN_REG_COM_VCHAN 0xc
+#define MIPI_GEN_REG_COM_WCOUNT 0x10
+#define MIPI_GEN_REG_PRBS_RSTVAL0 0x14
+#define MIPI_GEN_REG_PRBS_RSTVAL1 0x18
+#define MIPI_GEN_REG_SYNG_FREE_RUN 0x1c
+#define MIPI_GEN_REG_SYNG_PAUSE 0x20
+#define MIPI_GEN_REG_SYNG_NOF_FRAMES 0x24
+#define MIPI_GEN_REG_SYNG_NOF_PIXELS 0x28
+#define MIPI_GEN_REG_SYNG_NOF_LINES 0x2c
+#define MIPI_GEN_REG_SYNG_HBLANK_CYC 0x30
+#define MIPI_GEN_REG_SYNG_VBLANK_CYC 0x34
+#define MIPI_GEN_REG_SYNG_STAT_HCNT 0x38
+#define MIPI_GEN_REG_SYNG_STAT_VCNT 0x3c
+#define MIPI_GEN_REG_SYNG_STAT_FCNT 0x40
+#define MIPI_GEN_REG_SYNG_STAT_DONE 0x44
+#define MIPI_GEN_REG_TPG_MODE 0x48
+#define MIPI_GEN_REG_TPG_HCNT_MASK 0x4c
+#define MIPI_GEN_REG_TPG_VCNT_MASK 0x50
+#define MIPI_GEN_REG_TPG_XYCNT_MASK 0x54
+#define MIPI_GEN_REG_TPG_HCNT_DELTA 0x58
+#define MIPI_GEN_REG_TPG_VCNT_DELTA 0x5c
+#define MIPI_GEN_REG_TPG_R1 0x60
+#define MIPI_GEN_REG_TPG_G1 0x64
+#define MIPI_GEN_REG_TPG_B1 0x68
+#define MIPI_GEN_REG_TPG_R2 0x6c
+#define MIPI_GEN_REG_TPG_G2 0x70
+#define MIPI_GEN_REG_TPG_B2 0x74
+
+/*
+ * struct ipu_isys_tpg
+ *
+ * @nlanes: number of lanes in the receiver
+ */
+struct ipu_isys_tpg {
+ struct ipu_isys_tpg_pdata *pdata;
+ struct ipu_isys *isys;
+ struct ipu_isys_subdev asd;
+ struct ipu_isys_video av;
+
+ void __iomem *base;
+ void __iomem *sel;
+ unsigned int index;
+ int streaming;
+
+ struct v4l2_ctrl *hblank;
+ struct v4l2_ctrl *vblank;
+ struct v4l2_ctrl *pixel_rate;
+ struct v4l2_ctrl *store_csi2_header;
+};
+
+#define to_ipu_isys_tpg(sd) \
+ container_of(to_ipu_isys_subdev(sd), \
+ struct ipu_isys_tpg, asd)
+#ifdef IPU_TPG_FRAME_SYNC
+void ipu_isys_tpg_sof_event(struct ipu_isys_tpg *tpg);
+void ipu_isys_tpg_eof_event(struct ipu_isys_tpg *tpg);
+#endif
+int ipu_isys_tpg_init(struct ipu_isys_tpg *tpg,
+ struct ipu_isys *isys,
+ void __iomem *base, void __iomem *sel,
+ unsigned int index);
+void ipu_isys_tpg_cleanup(struct ipu_isys_tpg *tpg);
+int tpg_set_stream(struct v4l2_subdev *sd, int enable);
+
+#endif /* IPU_ISYS_TPG_H */
diff --git a/drivers/media/pci/intel/ipu-isys-video.c b/drivers/media/pci/intel/ipu-isys-video.c
new file mode 100644
index 0000000000000..a168929485757
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-isys-video.c
@@ -0,0 +1,1748 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2013 - 2021 Intel Corporation
+
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/init_task.h>
+#include <linux/kthread.h>
+#include <linux/pm_runtime.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/compat.h>
+
+#include <uapi/linux/sched/types.h>
+
+#include <media/media-entity.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-mc.h>
+
+#include "ipu.h"
+#include "ipu-bus.h"
+#include "ipu-cpd.h"
+#include "ipu-isys.h"
+#include "ipu-isys-video.h"
+#include "ipu-platform.h"
+#include "ipu-platform-regs.h"
+#include "ipu-platform-buttress-regs.h"
+#include "ipu-trace.h"
+#include "ipu-fw-isys.h"
+#include "ipu-fw-com.h"
+
+/* use max resolution pixel rate by default */
+#define DEFAULT_PIXEL_RATE (360000000ULL * 2 * 4 / 10)
+
+const struct ipu_isys_pixelformat ipu_isys_pfmts_be_soc[] = {
+ {V4L2_PIX_FMT_Y10, 16, 10, 0, MEDIA_BUS_FMT_Y10_1X10,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW16},
+ {V4L2_PIX_FMT_UYVY, 16, 16, 0, MEDIA_BUS_FMT_UYVY8_1X16,
+ IPU_FW_ISYS_FRAME_FORMAT_UYVY},
+ {V4L2_PIX_FMT_YUYV, 16, 16, 0, MEDIA_BUS_FMT_YUYV8_1X16,
+ IPU_FW_ISYS_FRAME_FORMAT_YUYV},
+ {V4L2_PIX_FMT_NV16, 16, 16, 8, MEDIA_BUS_FMT_UYVY8_1X16,
+ IPU_FW_ISYS_FRAME_FORMAT_NV16},
+ {V4L2_PIX_FMT_XRGB32, 32, 32, 0, MEDIA_BUS_FMT_RGB565_1X16,
+ IPU_FW_ISYS_FRAME_FORMAT_RGBA888},
+ {V4L2_PIX_FMT_XBGR32, 32, 32, 0, MEDIA_BUS_FMT_RGB888_1X24,
+ IPU_FW_ISYS_FRAME_FORMAT_RGBA888},
+ /* Raw bayer formats. */
+ {V4L2_PIX_FMT_SBGGR12, 16, 12, 0, MEDIA_BUS_FMT_SBGGR12_1X12,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW16},
+ {V4L2_PIX_FMT_SGBRG12, 16, 12, 0, MEDIA_BUS_FMT_SGBRG12_1X12,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW16},
+ {V4L2_PIX_FMT_SGRBG12, 16, 12, 0, MEDIA_BUS_FMT_SGRBG12_1X12,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW16},
+ {V4L2_PIX_FMT_SRGGB12, 16, 12, 0, MEDIA_BUS_FMT_SRGGB12_1X12,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW16},
+ {V4L2_PIX_FMT_SBGGR10, 16, 10, 0, MEDIA_BUS_FMT_SBGGR10_1X10,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW16},
+ {V4L2_PIX_FMT_SGBRG10, 16, 10, 0, MEDIA_BUS_FMT_SGBRG10_1X10,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW16},
+ {V4L2_PIX_FMT_SGRBG10, 16, 10, 0, MEDIA_BUS_FMT_SGRBG10_1X10,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW16},
+ {V4L2_PIX_FMT_SRGGB10, 16, 10, 0, MEDIA_BUS_FMT_SRGGB10_1X10,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW16},
+ {V4L2_PIX_FMT_SBGGR8, 8, 8, 0, MEDIA_BUS_FMT_SBGGR8_1X8,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW8},
+ {V4L2_PIX_FMT_SGBRG8, 8, 8, 0, MEDIA_BUS_FMT_SGBRG8_1X8,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW8},
+ {V4L2_PIX_FMT_SGRBG8, 8, 8, 0, MEDIA_BUS_FMT_SGRBG8_1X8,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW8},
+ {V4L2_PIX_FMT_SRGGB8, 8, 8, 0, MEDIA_BUS_FMT_SRGGB8_1X8,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW8},
+ {}
+};
+
+const struct ipu_isys_pixelformat ipu_isys_pfmts_packed[] = {
+ {V4L2_PIX_FMT_Y10, 10, 10, 0, MEDIA_BUS_FMT_Y10_1X10,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW10},
+#ifdef V4L2_PIX_FMT_Y210
+ {V4L2_PIX_FMT_Y210, 20, 20, 0, MEDIA_BUS_FMT_YUYV10_1X20,
+ IPU_FW_ISYS_FRAME_FORMAT_YUYV},
+#endif
+ {V4L2_PIX_FMT_UYVY, 16, 16, 0, MEDIA_BUS_FMT_UYVY8_1X16,
+ IPU_FW_ISYS_FRAME_FORMAT_UYVY},
+ {V4L2_PIX_FMT_YUYV, 16, 16, 0, MEDIA_BUS_FMT_YUYV8_1X16,
+ IPU_FW_ISYS_FRAME_FORMAT_YUYV},
+ {V4L2_PIX_FMT_RGB565, 16, 16, 0, MEDIA_BUS_FMT_RGB565_1X16,
+ IPU_FW_ISYS_FRAME_FORMAT_RGB565},
+ {V4L2_PIX_FMT_BGR24, 24, 24, 0, MEDIA_BUS_FMT_RGB888_1X24,
+ IPU_FW_ISYS_FRAME_FORMAT_RGBA888},
+#ifndef V4L2_PIX_FMT_SBGGR12P
+ {V4L2_PIX_FMT_SBGGR12, 12, 12, 0, MEDIA_BUS_FMT_SBGGR12_1X12,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW12},
+ {V4L2_PIX_FMT_SGBRG12, 12, 12, 0, MEDIA_BUS_FMT_SGBRG12_1X12,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW12},
+ {V4L2_PIX_FMT_SGRBG12, 12, 12, 0, MEDIA_BUS_FMT_SGRBG12_1X12,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW12},
+ {V4L2_PIX_FMT_SRGGB12, 12, 12, 0, MEDIA_BUS_FMT_SRGGB12_1X12,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW12},
+#else /* V4L2_PIX_FMT_SBGGR12P */
+ {V4L2_PIX_FMT_SBGGR12P, 12, 12, 0, MEDIA_BUS_FMT_SBGGR12_1X12,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW12},
+ {V4L2_PIX_FMT_SGBRG12P, 12, 12, 0, MEDIA_BUS_FMT_SGBRG12_1X12,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW12},
+ {V4L2_PIX_FMT_SGRBG12P, 12, 12, 0, MEDIA_BUS_FMT_SGRBG12_1X12,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW12},
+ {V4L2_PIX_FMT_SRGGB12P, 12, 12, 0, MEDIA_BUS_FMT_SRGGB12_1X12,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW12},
+#endif /* V4L2_PIX_FMT_SBGGR12P */
+ {V4L2_PIX_FMT_SBGGR10P, 10, 10, 0, MEDIA_BUS_FMT_SBGGR10_1X10,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW10},
+ {V4L2_PIX_FMT_SGBRG10P, 10, 10, 0, MEDIA_BUS_FMT_SGBRG10_1X10,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW10},
+ {V4L2_PIX_FMT_SGRBG10P, 10, 10, 0, MEDIA_BUS_FMT_SGRBG10_1X10,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW10},
+ {V4L2_PIX_FMT_SRGGB10P, 10, 10, 0, MEDIA_BUS_FMT_SRGGB10_1X10,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW10},
+ {V4L2_PIX_FMT_SBGGR8, 8, 8, 0, MEDIA_BUS_FMT_SBGGR8_1X8,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW8},
+ {V4L2_PIX_FMT_SGBRG8, 8, 8, 0, MEDIA_BUS_FMT_SGBRG8_1X8,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW8},
+ {V4L2_PIX_FMT_SGRBG8, 8, 8, 0, MEDIA_BUS_FMT_SGRBG8_1X8,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW8},
+ {V4L2_PIX_FMT_SRGGB8, 8, 8, 0, MEDIA_BUS_FMT_SRGGB8_1X8,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW8},
+ {}
+};
+
+static int video_open(struct file *file)
+{
+ struct ipu_isys_video *av = video_drvdata(file);
+ struct ipu_isys *isys = av->isys;
+ struct ipu_bus_device *adev = to_ipu_bus_device(&isys->adev->dev);
+ struct ipu_device *isp = adev->isp;
+ int rval;
+ const struct ipu_isys_internal_pdata *ipdata;
+
+ mutex_lock(&isys->mutex);
+
+ if (isys->reset_needed || isp->flr_done) {
+ mutex_unlock(&isys->mutex);
+ dev_warn(&isys->adev->dev, "isys power cycle required\n");
+ return -EIO;
+ }
+ mutex_unlock(&isys->mutex);
+
+ rval = pm_runtime_get_sync(&isys->adev->dev);
+ if (rval < 0) {
+ pm_runtime_put_noidle(&isys->adev->dev);
+ return rval;
+ }
+
+ rval = v4l2_fh_open(file);
+ if (rval)
+ goto out_power_down;
+
+ rval = v4l2_pipeline_pm_get(&av->vdev.entity);
+ if (rval)
+ goto out_v4l2_fh_release;
+
+ mutex_lock(&isys->mutex);
+
+ if (isys->video_opened++) {
+ /* Already open */
+ mutex_unlock(&isys->mutex);
+ return 0;
+ }
+
+ ipdata = isys->pdata->ipdata;
+ ipu_configure_spc(adev->isp,
+ &ipdata->hw_variant,
+ IPU_CPD_PKG_DIR_ISYS_SERVER_IDX,
+ isys->pdata->base, isys->pkg_dir,
+ isys->pkg_dir_dma_addr);
+
+ /*
+ * Buffers could have been left to wrong queue at last closure.
+ * Move them now back to empty buffer queue.
+ */
+ ipu_cleanup_fw_msg_bufs(isys);
+
+ if (isys->fwcom) {
+ /*
+ * Something went wrong in previous shutdown. As we are now
+ * restarting isys we can safely delete old context.
+ */
+ dev_err(&isys->adev->dev, "Clearing old context\n");
+ ipu_fw_isys_cleanup(isys);
+ }
+
+ rval = ipu_fw_isys_init(av->isys, ipdata->num_parallel_streams);
+ if (rval < 0)
+ goto out_lib_init;
+
+ mutex_unlock(&isys->mutex);
+
+ return 0;
+
+out_lib_init:
+ isys->video_opened--;
+ mutex_unlock(&isys->mutex);
+ v4l2_pipeline_pm_put(&av->vdev.entity);
+
+out_v4l2_fh_release:
+ v4l2_fh_release(file);
+out_power_down:
+ pm_runtime_put(&isys->adev->dev);
+
+ return rval;
+}
+
+static int video_release(struct file *file)
+{
+ struct ipu_isys_video *av = video_drvdata(file);
+ int ret = 0;
+
+ vb2_fop_release(file);
+
+ mutex_lock(&av->isys->mutex);
+
+ if (!--av->isys->video_opened) {
+ ipu_fw_isys_close(av->isys);
+ if (av->isys->fwcom) {
+ av->isys->reset_needed = true;
+ ret = -EIO;
+ }
+ }
+
+ mutex_unlock(&av->isys->mutex);
+
+ v4l2_pipeline_pm_put(&av->vdev.entity);
+
+ if (av->isys->reset_needed)
+ pm_runtime_put_sync(&av->isys->adev->dev);
+ else
+ pm_runtime_put(&av->isys->adev->dev);
+
+ return ret;
+}
+
+static struct media_pad *other_pad(struct media_pad *pad)
+{
+ struct media_link *link;
+
+ list_for_each_entry(link, &pad->entity->links, list) {
+ if ((link->flags & MEDIA_LNK_FL_LINK_TYPE)
+ != MEDIA_LNK_FL_DATA_LINK)
+ continue;
+
+ return link->source == pad ? link->sink : link->source;
+ }
+
+ WARN_ON(1);
+ return NULL;
+}
+
+const struct ipu_isys_pixelformat *
+ipu_isys_get_pixelformat(struct ipu_isys_video *av, u32 pixelformat)
+{
+ struct media_pad *pad = other_pad(&av->vdev.entity.pads[0]);
+ struct v4l2_subdev *sd;
+ const u32 *supported_codes;
+ const struct ipu_isys_pixelformat *pfmt;
+
+ if (!pad || !pad->entity) {
+ WARN_ON(1);
+ return NULL;
+ }
+
+ sd = media_entity_to_v4l2_subdev(pad->entity);
+ supported_codes = to_ipu_isys_subdev(sd)->supported_codes[pad->index];
+
+ for (pfmt = av->pfmts; pfmt->bpp; pfmt++) {
+ unsigned int i;
+
+ if (pfmt->pixelformat != pixelformat)
+ continue;
+
+ for (i = 0; supported_codes[i]; i++) {
+ if (pfmt->code == supported_codes[i])
+ return pfmt;
+ }
+ }
+
+ /* Not found. Get the default, i.e. the first defined one. */
+ for (pfmt = av->pfmts; pfmt->bpp; pfmt++) {
+ if (pfmt->code == *supported_codes)
+ return pfmt;
+ }
+
+ WARN_ON(1);
+ return NULL;
+}
+
+int ipu_isys_vidioc_querycap(struct file *file, void *fh,
+ struct v4l2_capability *cap)
+{
+ struct ipu_isys_video *av = video_drvdata(file);
+
+ strlcpy(cap->driver, IPU_ISYS_NAME, sizeof(cap->driver));
+ strlcpy(cap->card, av->isys->media_dev.model, sizeof(cap->card));
+ snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
+ av->isys->media_dev.bus_info);
+ return 0;
+}
+
+int ipu_isys_vidioc_enum_fmt(struct file *file, void *fh,
+ struct v4l2_fmtdesc *f)
+{
+ struct ipu_isys_video *av = video_drvdata(file);
+ struct media_pad *pad = other_pad(&av->vdev.entity.pads[0]);
+ struct v4l2_subdev *sd;
+ const u32 *supported_codes;
+ const struct ipu_isys_pixelformat *pfmt;
+ u32 index;
+
+ if (!pad || !pad->entity)
+ return -EINVAL;
+ sd = media_entity_to_v4l2_subdev(pad->entity);
+ supported_codes = to_ipu_isys_subdev(sd)->supported_codes[pad->index];
+
+ /* Walk the 0-terminated array for the f->index-th code. */
+ for (index = f->index; *supported_codes && index;
+ index--, supported_codes++) {
+ };
+
+ if (!*supported_codes)
+ return -EINVAL;
+
+ f->flags = 0;
+
+ /* Code found */
+ for (pfmt = av->pfmts; pfmt->bpp; pfmt++)
+ if (pfmt->code == *supported_codes)
+ break;
+
+ if (!pfmt->bpp) {
+ dev_warn(&av->isys->adev->dev,
+ "Format not found in mapping table.");
+ return -EINVAL;
+ }
+
+ f->pixelformat = pfmt->pixelformat;
+
+ return 0;
+}
+
+static int vidioc_g_fmt_vid_cap_mplane(struct file *file, void *fh,
+ struct v4l2_format *fmt)
+{
+ struct ipu_isys_video *av = video_drvdata(file);
+
+ fmt->fmt.pix_mp = av->mpix;
+
+ return 0;
+}
+
+const struct ipu_isys_pixelformat *
+ipu_isys_video_try_fmt_vid_mplane_default(struct ipu_isys_video *av,
+ struct v4l2_pix_format_mplane *mpix)
+{
+ return ipu_isys_video_try_fmt_vid_mplane(av, mpix, 0);
+}
+
+const struct ipu_isys_pixelformat *
+ipu_isys_video_try_fmt_vid_mplane(struct ipu_isys_video *av,
+ struct v4l2_pix_format_mplane *mpix,
+ int store_csi2_header)
+{
+ const struct ipu_isys_pixelformat *pfmt =
+ ipu_isys_get_pixelformat(av, mpix->pixelformat);
+
+ if (!pfmt)
+ return NULL;
+ mpix->pixelformat = pfmt->pixelformat;
+ mpix->num_planes = 1;
+
+ mpix->width = clamp(mpix->width, IPU_ISYS_MIN_WIDTH,
+ IPU_ISYS_MAX_WIDTH);
+ mpix->height = clamp(mpix->height, IPU_ISYS_MIN_HEIGHT,
+ IPU_ISYS_MAX_HEIGHT);
+
+ if (!av->packed)
+ mpix->plane_fmt[0].bytesperline =
+ mpix->width * DIV_ROUND_UP(pfmt->bpp_planar ?
+ pfmt->bpp_planar : pfmt->bpp,
+ BITS_PER_BYTE);
+ else if (store_csi2_header)
+ mpix->plane_fmt[0].bytesperline =
+ DIV_ROUND_UP(av->line_header_length +
+ av->line_footer_length +
+ (unsigned int)mpix->width * pfmt->bpp,
+ BITS_PER_BYTE);
+ else
+ mpix->plane_fmt[0].bytesperline =
+ DIV_ROUND_UP((unsigned int)mpix->width * pfmt->bpp,
+ BITS_PER_BYTE);
+
+ mpix->plane_fmt[0].bytesperline = ALIGN(mpix->plane_fmt[0].bytesperline,
+ av->isys->line_align);
+
+ if (pfmt->bpp_planar)
+ mpix->plane_fmt[0].bytesperline =
+ mpix->plane_fmt[0].bytesperline *
+ pfmt->bpp / pfmt->bpp_planar;
+ /*
+ * (height + 1) * bytesperline due to a hardware issue: the DMA unit
+ * is a power of two, and a line should be transferred as few units
+ * as possible. The result is that up to line length more data than
+ * the image size may be transferred to memory after the image.
+ * Another limition is the GDA allocation unit size. For low
+ * resolution it gives a bigger number. Use larger one to avoid
+ * memory corruption.
+ */
+ mpix->plane_fmt[0].sizeimage =
+ max(max(mpix->plane_fmt[0].sizeimage,
+ mpix->plane_fmt[0].bytesperline * mpix->height +
+ max(mpix->plane_fmt[0].bytesperline,
+ av->isys->pdata->ipdata->isys_dma_overshoot)), 1U);
+
+ if (av->compression_ctrl)
+ av->compression = v4l2_ctrl_g_ctrl(av->compression_ctrl);
+
+ /* overwrite bpl/height with compression alignment */
+ if (av->compression) {
+ u32 planar_tile_status_size, tile_status_size;
+
+ mpix->plane_fmt[0].bytesperline =
+ ALIGN(mpix->plane_fmt[0].bytesperline,
+ IPU_ISYS_COMPRESSION_LINE_ALIGN);
+ mpix->height = ALIGN(mpix->height,
+ IPU_ISYS_COMPRESSION_HEIGHT_ALIGN);
+
+ mpix->plane_fmt[0].sizeimage =
+ ALIGN(mpix->plane_fmt[0].bytesperline * mpix->height,
+ IPU_ISYS_COMPRESSION_PAGE_ALIGN);
+
+ /* ISYS compression only for RAW and single plannar */
+ planar_tile_status_size =
+ DIV_ROUND_UP_ULL((mpix->plane_fmt[0].bytesperline *
+ mpix->height /
+ IPU_ISYS_COMPRESSION_TILE_SIZE_BYTES) *
+ IPU_ISYS_COMPRESSION_TILE_STATUS_BITS,
+ BITS_PER_BYTE);
+ tile_status_size = ALIGN(planar_tile_status_size,
+ IPU_ISYS_COMPRESSION_PAGE_ALIGN);
+
+ /* tile status buffer offsets relative to buffer base address */
+ av->ts_offsets[0] = mpix->plane_fmt[0].sizeimage;
+ mpix->plane_fmt[0].sizeimage += tile_status_size;
+
+ dev_dbg(&av->isys->adev->dev,
+ "cmprs: bpl:%d, height:%d img size:%d, ts_sz:%d\n",
+ mpix->plane_fmt[0].bytesperline, mpix->height,
+ av->ts_offsets[0], tile_status_size);
+ }
+
+ memset(mpix->plane_fmt[0].reserved, 0,
+ sizeof(mpix->plane_fmt[0].reserved));
+
+ if (mpix->field == V4L2_FIELD_ANY)
+ mpix->field = V4L2_FIELD_NONE;
+ /* Use defaults */
+ mpix->colorspace = V4L2_COLORSPACE_RAW;
+ mpix->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
+ mpix->quantization = V4L2_QUANTIZATION_DEFAULT;
+ mpix->xfer_func = V4L2_XFER_FUNC_DEFAULT;
+
+ return pfmt;
+}
+
+static int vidioc_s_fmt_vid_cap_mplane(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct ipu_isys_video *av = video_drvdata(file);
+
+ if (av->aq.vbq.streaming)
+ return -EBUSY;
+
+ av->pfmt = av->try_fmt_vid_mplane(av, &f->fmt.pix_mp);
+ av->mpix = f->fmt.pix_mp;
+
+ return 0;
+}
+
+static int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct ipu_isys_video *av = video_drvdata(file);
+
+ av->try_fmt_vid_mplane(av, &f->fmt.pix_mp);
+
+ return 0;
+}
+
+static long ipu_isys_vidioc_private(struct file *file, void *fh,
+ bool valid_prio, unsigned int cmd,
+ void *arg)
+{
+ struct ipu_isys_video *av = video_drvdata(file);
+ int ret = 0;
+
+ switch (cmd) {
+ case VIDIOC_IPU_GET_DRIVER_VERSION:
+ *(u32 *)arg = IPU_DRIVER_VERSION;
+ break;
+
+ default:
+ dev_dbg(&av->isys->adev->dev, "unsupported private ioctl %x\n",
+ cmd);
+ }
+
+ return ret;
+}
+
+static int vidioc_enum_input(struct file *file, void *fh,
+ struct v4l2_input *input)
+{
+ if (input->index > 0)
+ return -EINVAL;
+ strlcpy(input->name, "camera", sizeof(input->name));
+ input->type = V4L2_INPUT_TYPE_CAMERA;
+
+ return 0;
+}
+
+static int vidioc_g_input(struct file *file, void *fh, unsigned int *input)
+{
+ *input = 0;
+
+ return 0;
+}
+
+static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
+{
+ return input == 0 ? 0 : -EINVAL;
+}
+
+/*
+ * Return true if an entity directly connected to an Iunit entity is
+ * an image source for the ISP. This can be any external directly
+ * connected entity or any of the test pattern generators in the
+ * Iunit.
+ */
+static bool is_external(struct ipu_isys_video *av, struct media_entity *entity)
+{
+ struct v4l2_subdev *sd;
+
+ /* All video nodes are ours. */
+ if (!is_media_entity_v4l2_subdev(entity))
+ return false;
+
+ sd = media_entity_to_v4l2_subdev(entity);
+ if (strncmp(sd->name, IPU_ISYS_ENTITY_PREFIX,
+ strlen(IPU_ISYS_ENTITY_PREFIX)) != 0)
+ return true;
+
+ return false;
+}
+
+static int link_validate(struct media_link *link)
+{
+ struct ipu_isys_video *av =
+ container_of(link->sink, struct ipu_isys_video, pad);
+ /* All sub-devices connected to a video node are ours. */
+ struct ipu_isys_pipeline *ip =
+ to_ipu_isys_pipeline(av->vdev.entity.pipe);
+ struct v4l2_subdev *sd;
+
+ if (!link->source->entity)
+ return -EINVAL;
+ sd = media_entity_to_v4l2_subdev(link->source->entity);
+ if (is_external(av, link->source->entity)) {
+ ip->external = media_entity_remote_pad(av->vdev.entity.pads);
+ ip->source = to_ipu_isys_subdev(sd)->source;
+ }
+
+ ip->nr_queues++;
+
+ return 0;
+}
+
+static void get_stream_opened(struct ipu_isys_video *av)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&av->isys->lock, flags);
+ av->isys->stream_opened++;
+ spin_unlock_irqrestore(&av->isys->lock, flags);
+}
+
+static void put_stream_opened(struct ipu_isys_video *av)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&av->isys->lock, flags);
+ av->isys->stream_opened--;
+ spin_unlock_irqrestore(&av->isys->lock, flags);
+}
+
+static int get_stream_handle(struct ipu_isys_video *av)
+{
+ struct ipu_isys_pipeline *ip =
+ to_ipu_isys_pipeline(av->vdev.entity.pipe);
+ unsigned int stream_handle;
+ unsigned long flags;
+
+ spin_lock_irqsave(&av->isys->lock, flags);
+ for (stream_handle = 0;
+ stream_handle < IPU_ISYS_MAX_STREAMS; stream_handle++)
+ if (!av->isys->pipes[stream_handle])
+ break;
+ if (stream_handle == IPU_ISYS_MAX_STREAMS) {
+ spin_unlock_irqrestore(&av->isys->lock, flags);
+ return -EBUSY;
+ }
+ av->isys->pipes[stream_handle] = ip;
+ ip->stream_handle = stream_handle;
+ spin_unlock_irqrestore(&av->isys->lock, flags);
+ return 0;
+}
+
+static void put_stream_handle(struct ipu_isys_video *av)
+{
+ struct ipu_isys_pipeline *ip =
+ to_ipu_isys_pipeline(av->vdev.entity.pipe);
+ unsigned long flags;
+
+ spin_lock_irqsave(&av->isys->lock, flags);
+ av->isys->pipes[ip->stream_handle] = NULL;
+ ip->stream_handle = -1;
+ spin_unlock_irqrestore(&av->isys->lock, flags);
+}
+
+static int get_external_facing_format(struct ipu_isys_pipeline *ip,
+ struct v4l2_subdev_format *format)
+{
+ struct ipu_isys_video *av = container_of(ip, struct ipu_isys_video, ip);
+ struct v4l2_subdev *sd;
+ struct media_pad *external_facing;
+
+ if (!ip->external->entity) {
+ WARN_ON(1);
+ return -ENODEV;
+ }
+ sd = media_entity_to_v4l2_subdev(ip->external->entity);
+ external_facing = (strncmp(sd->name, IPU_ISYS_ENTITY_PREFIX,
+ strlen(IPU_ISYS_ENTITY_PREFIX)) == 0) ?
+ ip->external :
+ media_entity_remote_pad(ip->external);
+ if (WARN_ON(!external_facing)) {
+ dev_warn(&av->isys->adev->dev,
+ "no external facing pad --- driver bug?\n");
+ return -EINVAL;
+ }
+
+ format->which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ format->pad = 0;
+ sd = media_entity_to_v4l2_subdev(external_facing->entity);
+
+ return v4l2_subdev_call(sd, pad, get_fmt, NULL, format);
+}
+
+static void short_packet_queue_destroy(struct ipu_isys_pipeline *ip)
+{
+ struct ipu_isys_video *av = container_of(ip, struct ipu_isys_video, ip);
+ unsigned int i;
+
+ if (!ip->short_packet_bufs)
+ return;
+ for (i = 0; i < IPU_ISYS_SHORT_PACKET_BUFFER_NUM; i++) {
+ if (ip->short_packet_bufs[i].buffer)
+ dma_free_coherent(&av->isys->adev->dev,
+ ip->short_packet_buffer_size,
+ ip->short_packet_bufs[i].buffer,
+ ip->short_packet_bufs[i].dma_addr);
+ }
+ kfree(ip->short_packet_bufs);
+ ip->short_packet_bufs = NULL;
+}
+
+static int short_packet_queue_setup(struct ipu_isys_pipeline *ip)
+{
+ struct ipu_isys_video *av = container_of(ip, struct ipu_isys_video, ip);
+ struct v4l2_subdev_format source_fmt = { 0 };
+ unsigned int i;
+ int rval;
+ size_t buf_size;
+
+ INIT_LIST_HEAD(&ip->pending_interlaced_bufs);
+ ip->cur_field = V4L2_FIELD_TOP;
+
+ if (ip->isys->short_packet_source == IPU_ISYS_SHORT_PACKET_FROM_TUNIT) {
+ ip->short_packet_trace_index = 0;
+ return 0;
+ }
+
+ rval = get_external_facing_format(ip, &source_fmt);
+ if (rval)
+ return rval;
+ buf_size = IPU_ISYS_SHORT_PACKET_BUF_SIZE(source_fmt.format.height);
+ ip->short_packet_buffer_size = buf_size;
+ ip->num_short_packet_lines =
+ IPU_ISYS_SHORT_PACKET_PKT_LINES(source_fmt.format.height);
+
+ /* Initialize short packet queue. */
+ INIT_LIST_HEAD(&ip->short_packet_incoming);
+ INIT_LIST_HEAD(&ip->short_packet_active);
+
+ ip->short_packet_bufs =
+ kzalloc(sizeof(struct ipu_isys_private_buffer) *
+ IPU_ISYS_SHORT_PACKET_BUFFER_NUM, GFP_KERNEL);
+ if (!ip->short_packet_bufs)
+ return -ENOMEM;
+
+ for (i = 0; i < IPU_ISYS_SHORT_PACKET_BUFFER_NUM; i++) {
+ struct ipu_isys_private_buffer *buf = &ip->short_packet_bufs[i];
+
+ buf->index = (unsigned int)i;
+ buf->ip = ip;
+ buf->ib.type = IPU_ISYS_SHORT_PACKET_BUFFER;
+ buf->bytesused = buf_size;
+ buf->buffer = dma_alloc_coherent(&av->isys->adev->dev, buf_size,
+ &buf->dma_addr, GFP_KERNEL);
+ if (!buf->buffer) {
+ short_packet_queue_destroy(ip);
+ return -ENOMEM;
+ }
+ list_add(&buf->ib.head, &ip->short_packet_incoming);
+ }
+
+ return 0;
+}
+
+static void
+csi_short_packet_prepare_fw_cfg(struct ipu_isys_pipeline *ip,
+ struct ipu_fw_isys_stream_cfg_data_abi *cfg)
+{
+ int input_pin = cfg->nof_input_pins++;
+ int output_pin = cfg->nof_output_pins++;
+ struct ipu_fw_isys_input_pin_info_abi *input_info =
+ &cfg->input_pins[input_pin];
+ struct ipu_fw_isys_output_pin_info_abi *output_info =
+ &cfg->output_pins[output_pin];
+ struct ipu_isys *isys = ip->isys;
+
+ /*
+ * Setting dt as IPU_ISYS_SHORT_PACKET_GENERAL_DT will cause
+ * MIPI receiver to receive all MIPI short packets.
+ */
+ input_info->dt = IPU_ISYS_SHORT_PACKET_GENERAL_DT;
+ input_info->input_res.width = IPU_ISYS_SHORT_PACKET_WIDTH;
+ input_info->input_res.height = ip->num_short_packet_lines;
+
+ ip->output_pins[output_pin].pin_ready =
+ ipu_isys_queue_short_packet_ready;
+ ip->output_pins[output_pin].aq = NULL;
+ ip->short_packet_output_pin = output_pin;
+
+ output_info->input_pin_id = input_pin;
+ output_info->output_res.width = IPU_ISYS_SHORT_PACKET_WIDTH;
+ output_info->output_res.height = ip->num_short_packet_lines;
+ output_info->stride = IPU_ISYS_SHORT_PACKET_WIDTH *
+ IPU_ISYS_SHORT_PACKET_UNITSIZE;
+ output_info->pt = IPU_ISYS_SHORT_PACKET_PT;
+ output_info->ft = IPU_ISYS_SHORT_PACKET_FT;
+ output_info->send_irq = 1;
+ memset(output_info->ts_offsets, 0, sizeof(output_info->ts_offsets));
+ output_info->s2m_pixel_soc_pixel_remapping =
+ S2M_PIXEL_SOC_PIXEL_REMAPPING_FLAG_NO_REMAPPING;
+ output_info->csi_be_soc_pixel_remapping =
+ CSI_BE_SOC_PIXEL_REMAPPING_FLAG_NO_REMAPPING;
+ output_info->sensor_type = isys->sensor_info.sensor_metadata;
+ output_info->snoopable = true;
+ output_info->error_handling_enable = false;
+}
+
+void
+ipu_isys_prepare_fw_cfg_default(struct ipu_isys_video *av,
+ struct ipu_fw_isys_stream_cfg_data_abi *cfg)
+{
+ struct ipu_isys_pipeline *ip =
+ to_ipu_isys_pipeline(av->vdev.entity.pipe);
+ struct ipu_isys_queue *aq = &av->aq;
+ struct ipu_fw_isys_output_pin_info_abi *pin_info;
+ struct ipu_isys *isys = av->isys;
+ unsigned int type_index, type;
+ int pin = cfg->nof_output_pins++;
+
+ aq->fw_output = pin;
+ ip->output_pins[pin].pin_ready = ipu_isys_queue_buf_ready;
+ ip->output_pins[pin].aq = aq;
+
+ pin_info = &cfg->output_pins[pin];
+ pin_info->input_pin_id = 0;
+ pin_info->output_res.width = av->mpix.width;
+ pin_info->output_res.height = av->mpix.height;
+
+ if (!av->pfmt->bpp_planar)
+ pin_info->stride = av->mpix.plane_fmt[0].bytesperline;
+ else
+ pin_info->stride = ALIGN(DIV_ROUND_UP(av->mpix.width *
+ av->pfmt->bpp_planar,
+ BITS_PER_BYTE),
+ av->isys->line_align);
+
+ pin_info->pt = aq->css_pin_type;
+ pin_info->ft = av->pfmt->css_pixelformat;
+ pin_info->send_irq = 1;
+ memset(pin_info->ts_offsets, 0, sizeof(pin_info->ts_offsets));
+ pin_info->s2m_pixel_soc_pixel_remapping =
+ S2M_PIXEL_SOC_PIXEL_REMAPPING_FLAG_NO_REMAPPING;
+ pin_info->csi_be_soc_pixel_remapping =
+ CSI_BE_SOC_PIXEL_REMAPPING_FLAG_NO_REMAPPING;
+ cfg->vc = 0;
+
+ switch (pin_info->pt) {
+ /* non-snoopable sensor data to PSYS */
+ case IPU_FW_ISYS_PIN_TYPE_RAW_NS:
+ type_index = IPU_FW_ISYS_VC1_SENSOR_DATA;
+ pin_info->sensor_type = isys->sensor_types[type_index]++;
+ pin_info->snoopable = false;
+ pin_info->error_handling_enable = false;
+ type = isys->sensor_types[type_index];
+ if (type > isys->sensor_info.vc1_data_end)
+ isys->sensor_types[type_index] =
+ isys->sensor_info.vc1_data_start;
+
+ break;
+ /* snoopable META/Stats data to CPU */
+ case IPU_FW_ISYS_PIN_TYPE_METADATA_0:
+ case IPU_FW_ISYS_PIN_TYPE_METADATA_1:
+ pin_info->sensor_type = isys->sensor_info.sensor_metadata;
+ pin_info->snoopable = true;
+ pin_info->error_handling_enable = false;
+ break;
+ case IPU_FW_ISYS_PIN_TYPE_RAW_SOC:
+ if (av->compression) {
+ type_index = IPU_FW_ISYS_VC1_SENSOR_DATA;
+ pin_info->sensor_type
+ = isys->sensor_types[type_index]++;
+ pin_info->snoopable = false;
+ pin_info->error_handling_enable = false;
+ type = isys->sensor_types[type_index];
+ if (type > isys->sensor_info.vc1_data_end)
+ isys->sensor_types[type_index] =
+ isys->sensor_info.vc1_data_start;
+ } else {
+ type_index = IPU_FW_ISYS_VC0_SENSOR_DATA;
+ pin_info->sensor_type
+ = isys->sensor_types[type_index]++;
+ pin_info->snoopable = true;
+ pin_info->error_handling_enable = false;
+ type = isys->sensor_types[type_index];
+ if (type > isys->sensor_info.vc0_data_end)
+ isys->sensor_types[type_index] =
+ isys->sensor_info.vc0_data_start;
+ }
+ break;
+ case IPU_FW_ISYS_PIN_TYPE_MIPI:
+ type_index = IPU_FW_ISYS_VC0_SENSOR_DATA;
+ pin_info->sensor_type = isys->sensor_types[type_index]++;
+ pin_info->snoopable = true;
+ pin_info->error_handling_enable = false;
+ type = isys->sensor_types[type_index];
+ if (type > isys->sensor_info.vc0_data_end)
+ isys->sensor_types[type_index] =
+ isys->sensor_info.vc0_data_start;
+
+ break;
+
+ default:
+ dev_err(&av->isys->adev->dev,
+ "Unknown pin type, use metadata type as default\n");
+
+ pin_info->sensor_type = isys->sensor_info.sensor_metadata;
+ pin_info->snoopable = true;
+ pin_info->error_handling_enable = false;
+ }
+ if (av->compression) {
+ pin_info->payload_buf_size = av->mpix.plane_fmt[0].sizeimage;
+ pin_info->reserve_compression = av->compression;
+ pin_info->ts_offsets[0] = av->ts_offsets[0];
+ }
+}
+
+static unsigned int ipu_isys_get_compression_scheme(u32 code)
+{
+ switch (code) {
+ case MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8:
+ case MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8:
+ case MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8:
+ case MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8:
+ return 3;
+ default:
+ return 0;
+ }
+}
+
+static unsigned int get_comp_format(u32 code)
+{
+ unsigned int predictor = 0; /* currently hard coded */
+ unsigned int udt = ipu_isys_mbus_code_to_mipi(code);
+ unsigned int scheme = ipu_isys_get_compression_scheme(code);
+
+ /* if data type is not user defined return here */
+ if (udt < IPU_ISYS_MIPI_CSI2_TYPE_USER_DEF(1) ||
+ udt > IPU_ISYS_MIPI_CSI2_TYPE_USER_DEF(8))
+ return 0;
+
+ /*
+ * For each user defined type (1..8) there is configuration bitfield for
+ * decompression.
+ *
+ * | bit 3 | bits 2:0 |
+ * | predictor | scheme |
+ * compression schemes:
+ * 000 = no compression
+ * 001 = 10 - 6 - 10
+ * 010 = 10 - 7 - 10
+ * 011 = 10 - 8 - 10
+ * 100 = 12 - 6 - 12
+ * 101 = 12 - 7 - 12
+ * 110 = 12 - 8 - 12
+ */
+
+ return ((predictor << 3) | scheme) <<
+ ((udt - IPU_ISYS_MIPI_CSI2_TYPE_USER_DEF(1)) * 4);
+}
+
+/* Create stream and start it using the CSS FW ABI. */
+static int start_stream_firmware(struct ipu_isys_video *av,
+ struct ipu_isys_buffer_list *bl)
+{
+ struct ipu_isys_pipeline *ip =
+ to_ipu_isys_pipeline(av->vdev.entity.pipe);
+ struct device *dev = &av->isys->adev->dev;
+ struct v4l2_subdev_selection sel_fmt = {
+ .which = V4L2_SUBDEV_FORMAT_ACTIVE,
+ .target = V4L2_SEL_TGT_CROP,
+ .pad = CSI2_BE_PAD_SOURCE,
+ };
+ struct ipu_fw_isys_stream_cfg_data_abi *stream_cfg;
+ struct isys_fw_msgs *msg = NULL;
+ struct ipu_fw_isys_frame_buff_set_abi *buf = NULL;
+ struct ipu_isys_queue *aq;
+ struct ipu_isys_video *isl_av = NULL;
+ struct v4l2_subdev_format source_fmt = { 0 };
+ struct v4l2_subdev *be_sd = NULL;
+ struct media_pad *source_pad = media_entity_remote_pad(&av->pad);
+ struct ipu_fw_isys_cropping_abi *crop;
+ enum ipu_fw_isys_send_type send_type;
+ int rval, rvalout, tout;
+
+ rval = get_external_facing_format(ip, &source_fmt);
+ if (rval)
+ return rval;
+
+ msg = ipu_get_fw_msg_buf(ip);
+ if (!msg)
+ return -ENOMEM;
+
+ stream_cfg = to_stream_cfg_msg_buf(msg);
+ stream_cfg->compfmt = get_comp_format(source_fmt.format.code);
+ stream_cfg->input_pins[0].input_res.width = source_fmt.format.width;
+ stream_cfg->input_pins[0].input_res.height = source_fmt.format.height;
+ stream_cfg->input_pins[0].dt =
+ ipu_isys_mbus_code_to_mipi(source_fmt.format.code);
+ stream_cfg->input_pins[0].mapped_dt = N_IPU_FW_ISYS_MIPI_DATA_TYPE;
+ stream_cfg->input_pins[0].mipi_decompression =
+ IPU_FW_ISYS_MIPI_COMPRESSION_TYPE_NO_COMPRESSION;
+ stream_cfg->input_pins[0].capture_mode =
+ IPU_FW_ISYS_CAPTURE_MODE_REGULAR;
+ if (ip->csi2 && !v4l2_ctrl_g_ctrl(ip->csi2->store_csi2_header))
+ stream_cfg->input_pins[0].mipi_store_mode =
+ IPU_FW_ISYS_MIPI_STORE_MODE_DISCARD_LONG_HEADER;
+
+ stream_cfg->src = ip->source;
+ stream_cfg->vc = 0;
+ stream_cfg->isl_use = ip->isl_mode;
+ stream_cfg->nof_input_pins = 1;
+ stream_cfg->sensor_type = IPU_FW_ISYS_SENSOR_MODE_NORMAL;
+
+ /*
+ * Only CSI2-BE and SOC BE has the capability to do crop,
+ * so get the crop info from csi2-be or csi2-be-soc.
+ */
+ if (ip->csi2_be) {
+ be_sd = &ip->csi2_be->asd.sd;
+ } else if (ip->csi2_be_soc) {
+ be_sd = &ip->csi2_be_soc->asd.sd;
+ if (source_pad)
+ sel_fmt.pad = source_pad->index;
+ }
+ crop = &stream_cfg->crop;
+ if (be_sd &&
+ !v4l2_subdev_call(be_sd, pad, get_selection, NULL, &sel_fmt)) {
+ crop->left_offset = sel_fmt.r.left;
+ crop->top_offset = sel_fmt.r.top;
+ crop->right_offset = sel_fmt.r.left + sel_fmt.r.width;
+ crop->bottom_offset = sel_fmt.r.top + sel_fmt.r.height;
+
+ } else {
+ crop->right_offset = source_fmt.format.width;
+ crop->bottom_offset = source_fmt.format.height;
+ }
+
+ /*
+ * If the CSI-2 backend's video node is part of the pipeline
+ * it must be arranged first in the output pin list. This is
+ * the most probably a firmware requirement.
+ */
+ if (ip->isl_mode == IPU_ISL_CSI2_BE)
+ isl_av = &ip->csi2_be->av;
+
+ if (isl_av) {
+ struct ipu_isys_queue *safe;
+
+ list_for_each_entry_safe(aq, safe, &ip->queues, node) {
+ struct ipu_isys_video *av = ipu_isys_queue_to_video(aq);
+
+ if (av != isl_av)
+ continue;
+
+ list_del(&aq->node);
+ list_add(&aq->node, &ip->queues);
+ break;
+ }
+ }
+
+ list_for_each_entry(aq, &ip->queues, node) {
+ struct ipu_isys_video *__av = ipu_isys_queue_to_video(aq);
+
+ __av->prepare_fw_stream(__av, stream_cfg);
+ }
+
+ if (ip->interlaced && ip->isys->short_packet_source ==
+ IPU_ISYS_SHORT_PACKET_FROM_RECEIVER)
+ csi_short_packet_prepare_fw_cfg(ip, stream_cfg);
+
+ ipu_fw_isys_dump_stream_cfg(dev, stream_cfg);
+
+ ip->nr_output_pins = stream_cfg->nof_output_pins;
+
+ rval = get_stream_handle(av);
+ if (rval) {
+ dev_dbg(dev, "Can't get stream_handle\n");
+ return rval;
+ }
+
+ reinit_completion(&ip->stream_open_completion);
+
+ ipu_fw_isys_set_params(stream_cfg);
+
+ rval = ipu_fw_isys_complex_cmd(av->isys,
+ ip->stream_handle,
+ stream_cfg,
+ to_dma_addr(msg),
+ sizeof(*stream_cfg),
+ IPU_FW_ISYS_SEND_TYPE_STREAM_OPEN);
+ ipu_put_fw_mgs_buf(av->isys, (uintptr_t)stream_cfg);
+
+ if (rval < 0) {
+ dev_err(dev, "can't open stream (%d)\n", rval);
+ goto out_put_stream_handle;
+ }
+
+ get_stream_opened(av);
+
+ tout = wait_for_completion_timeout(&ip->stream_open_completion,
+ IPU_LIB_CALL_TIMEOUT_JIFFIES);
+ if (!tout) {
+ dev_err(dev, "stream open time out\n");
+ rval = -ETIMEDOUT;
+ goto out_put_stream_opened;
+ }
+ if (ip->error) {
+ dev_err(dev, "stream open error: %d\n", ip->error);
+ rval = -EIO;
+ goto out_put_stream_opened;
+ }
+ dev_dbg(dev, "start stream: open complete\n");
+
+ if (bl) {
+ msg = ipu_get_fw_msg_buf(ip);
+ if (!msg) {
+ rval = -ENOMEM;
+ goto out_put_stream_opened;
+ }
+ buf = to_frame_msg_buf(msg);
+ }
+
+ if (bl) {
+ ipu_isys_buffer_to_fw_frame_buff(buf, ip, bl);
+ ipu_isys_buffer_list_queue(bl,
+ IPU_ISYS_BUFFER_LIST_FL_ACTIVE, 0);
+ }
+
+ reinit_completion(&ip->stream_start_completion);
+
+ if (bl) {
+ send_type = IPU_FW_ISYS_SEND_TYPE_STREAM_START_AND_CAPTURE;
+ ipu_fw_isys_dump_frame_buff_set(dev, buf,
+ stream_cfg->nof_output_pins);
+ rval = ipu_fw_isys_complex_cmd(av->isys,
+ ip->stream_handle,
+ buf, to_dma_addr(msg),
+ sizeof(*buf),
+ send_type);
+ ipu_put_fw_mgs_buf(av->isys, (uintptr_t)buf);
+ } else {
+ send_type = IPU_FW_ISYS_SEND_TYPE_STREAM_START;
+ rval = ipu_fw_isys_simple_cmd(av->isys,
+ ip->stream_handle,
+ send_type);
+ }
+
+ if (rval < 0) {
+ dev_err(dev, "can't start streaming (%d)\n", rval);
+ goto out_stream_close;
+ }
+
+ tout = wait_for_completion_timeout(&ip->stream_start_completion,
+ IPU_LIB_CALL_TIMEOUT_JIFFIES);
+ if (!tout) {
+ dev_err(dev, "stream start time out\n");
+ rval = -ETIMEDOUT;
+ goto out_stream_close;
+ }
+ if (ip->error) {
+ dev_err(dev, "stream start error: %d\n", ip->error);
+ rval = -EIO;
+ goto out_stream_close;
+ }
+ dev_dbg(dev, "start stream: complete\n");
+
+ return 0;
+
+out_stream_close:
+ reinit_completion(&ip->stream_close_completion);
+
+ rvalout = ipu_fw_isys_simple_cmd(av->isys,
+ ip->stream_handle,
+ IPU_FW_ISYS_SEND_TYPE_STREAM_CLOSE);
+ if (rvalout < 0) {
+ dev_dbg(dev, "can't close stream (%d)\n", rvalout);
+ goto out_put_stream_opened;
+ }
+
+ tout = wait_for_completion_timeout(&ip->stream_close_completion,
+ IPU_LIB_CALL_TIMEOUT_JIFFIES);
+ if (!tout)
+ dev_err(dev, "stream close time out\n");
+ else if (ip->error)
+ dev_err(dev, "stream close error: %d\n", ip->error);
+ else
+ dev_dbg(dev, "stream close complete\n");
+
+out_put_stream_opened:
+ put_stream_opened(av);
+
+out_put_stream_handle:
+ put_stream_handle(av);
+ return rval;
+}
+
+static void stop_streaming_firmware(struct ipu_isys_video *av)
+{
+ struct ipu_isys_pipeline *ip =
+ to_ipu_isys_pipeline(av->vdev.entity.pipe);
+ struct device *dev = &av->isys->adev->dev;
+ int rval, tout;
+ enum ipu_fw_isys_send_type send_type =
+ IPU_FW_ISYS_SEND_TYPE_STREAM_FLUSH;
+
+ reinit_completion(&ip->stream_stop_completion);
+
+ rval = ipu_fw_isys_simple_cmd(av->isys, ip->stream_handle,
+ send_type);
+
+ if (rval < 0) {
+ dev_err(dev, "can't stop stream (%d)\n", rval);
+ return;
+ }
+
+ tout = wait_for_completion_timeout(&ip->stream_stop_completion,
+ IPU_LIB_CALL_TIMEOUT_JIFFIES);
+ if (!tout)
+ dev_err(dev, "stream stop time out\n");
+ else if (ip->error)
+ dev_err(dev, "stream stop error: %d\n", ip->error);
+ else
+ dev_dbg(dev, "stop stream: complete\n");
+}
+
+static void close_streaming_firmware(struct ipu_isys_video *av)
+{
+ struct ipu_isys_pipeline *ip =
+ to_ipu_isys_pipeline(av->vdev.entity.pipe);
+ struct device *dev = &av->isys->adev->dev;
+ int rval, tout;
+
+ reinit_completion(&ip->stream_close_completion);
+
+ rval = ipu_fw_isys_simple_cmd(av->isys, ip->stream_handle,
+ IPU_FW_ISYS_SEND_TYPE_STREAM_CLOSE);
+ if (rval < 0) {
+ dev_err(dev, "can't close stream (%d)\n", rval);
+ return;
+ }
+
+ tout = wait_for_completion_timeout(&ip->stream_close_completion,
+ IPU_LIB_CALL_TIMEOUT_JIFFIES);
+ if (!tout)
+ dev_err(dev, "stream close time out\n");
+ else if (ip->error)
+ dev_err(dev, "stream close error: %d\n", ip->error);
+ else
+ dev_dbg(dev, "close stream: complete\n");
+
+ put_stream_opened(av);
+ put_stream_handle(av);
+}
+
+void
+ipu_isys_video_add_capture_done(struct ipu_isys_pipeline *ip,
+ void (*capture_done)
+ (struct ipu_isys_pipeline *ip,
+ struct ipu_fw_isys_resp_info_abi *resp))
+{
+ unsigned int i;
+
+ /* Different instances may register same function. Add only once */
+ for (i = 0; i < IPU_NUM_CAPTURE_DONE; i++)
+ if (ip->capture_done[i] == capture_done)
+ return;
+
+ for (i = 0; i < IPU_NUM_CAPTURE_DONE; i++) {
+ if (!ip->capture_done[i]) {
+ ip->capture_done[i] = capture_done;
+ return;
+ }
+ }
+ /*
+ * Too many call backs registered. Change to IPU_NUM_CAPTURE_DONE
+ * constant probably required.
+ */
+ WARN_ON(1);
+}
+
+int ipu_isys_video_prepare_streaming(struct ipu_isys_video *av,
+ unsigned int state)
+{
+ struct ipu_isys *isys = av->isys;
+ struct device *dev = &isys->adev->dev;
+ struct ipu_isys_pipeline *ip;
+ struct media_graph graph;
+ struct media_entity *entity;
+ struct media_device *mdev = &av->isys->media_dev;
+ int rval;
+ unsigned int i;
+
+ dev_dbg(dev, "prepare stream: %d\n", state);
+
+ if (!state) {
+ ip = to_ipu_isys_pipeline(av->vdev.entity.pipe);
+
+ if (ip->interlaced && isys->short_packet_source ==
+ IPU_ISYS_SHORT_PACKET_FROM_RECEIVER)
+ short_packet_queue_destroy(ip);
+ media_pipeline_stop(&av->vdev.entity);
+ media_entity_enum_cleanup(&ip->entity_enum);
+ return 0;
+ }
+
+ ip = &av->ip;
+
+ WARN_ON(ip->nr_streaming);
+ ip->has_sof = false;
+ ip->nr_queues = 0;
+ ip->external = NULL;
+ atomic_set(&ip->sequence, 0);
+ ip->isl_mode = IPU_ISL_OFF;
+
+ for (i = 0; i < IPU_NUM_CAPTURE_DONE; i++)
+ ip->capture_done[i] = NULL;
+ ip->csi2_be = NULL;
+ ip->csi2_be_soc = NULL;
+ ip->csi2 = NULL;
+ ip->seq_index = 0;
+ memset(ip->seq, 0, sizeof(ip->seq));
+
+ WARN_ON(!list_empty(&ip->queues));
+ ip->interlaced = false;
+
+ rval = media_entity_enum_init(&ip->entity_enum, mdev);
+ if (rval)
+ return rval;
+
+ rval = media_pipeline_start(&av->vdev.entity, &ip->pipe);
+ if (rval < 0) {
+ dev_dbg(dev, "pipeline start failed\n");
+ goto out_enum_cleanup;
+ }
+
+ if (!ip->external) {
+ dev_err(dev, "no external entity set! Driver bug?\n");
+ rval = -EINVAL;
+ goto out_pipeline_stop;
+ }
+
+ rval = media_graph_walk_init(&graph, mdev);
+ if (rval)
+ goto out_pipeline_stop;
+
+ /* Gather all entities in the graph. */
+ mutex_lock(&mdev->graph_mutex);
+ media_graph_walk_start(&graph, &av->vdev.entity);
+ while ((entity = media_graph_walk_next(&graph)))
+ media_entity_enum_set(&ip->entity_enum, entity);
+
+ mutex_unlock(&mdev->graph_mutex);
+
+ media_graph_walk_cleanup(&graph);
+
+ if (ip->interlaced) {
+ rval = short_packet_queue_setup(ip);
+ if (rval) {
+ dev_err(&isys->adev->dev,
+ "Failed to setup short packet buffer.\n");
+ goto out_pipeline_stop;
+ }
+ }
+
+ dev_dbg(dev, "prepare stream: external entity %s\n",
+ ip->external->entity->name);
+
+ return 0;
+
+out_pipeline_stop:
+ media_pipeline_stop(&av->vdev.entity);
+
+out_enum_cleanup:
+ media_entity_enum_cleanup(&ip->entity_enum);
+
+ return rval;
+}
+
+static void configure_stream_watermark(struct ipu_isys_video *av)
+{
+ u32 vblank, hblank;
+ u64 pixel_rate;
+ int ret = 0;
+ struct v4l2_subdev *esd;
+ struct v4l2_ctrl *ctrl;
+ struct ipu_isys_pipeline *ip;
+ struct isys_iwake_watermark *iwake_watermark;
+ struct v4l2_control vb = { .id = V4L2_CID_VBLANK, .value = 0 };
+ struct v4l2_control hb = { .id = V4L2_CID_HBLANK, .value = 0 };
+
+ ip = to_ipu_isys_pipeline(av->vdev.entity.pipe);
+ if (!ip->external->entity) {
+ WARN_ON(1);
+ return;
+ }
+ esd = media_entity_to_v4l2_subdev(ip->external->entity);
+
+ av->watermark->width = av->mpix.width;
+ av->watermark->height = av->mpix.height;
+
+ ret = v4l2_g_ctrl(esd->ctrl_handler, &vb);
+ if (!ret && vb.value >= 0)
+ vblank = vb.value;
+ else
+ vblank = 0;
+
+ ret = v4l2_g_ctrl(esd->ctrl_handler, &hb);
+ if (!ret && hb.value >= 0)
+ hblank = hb.value;
+ else
+ hblank = 0;
+
+ ctrl = v4l2_ctrl_find(esd->ctrl_handler, V4L2_CID_PIXEL_RATE);
+
+ if (!ctrl)
+ pixel_rate = DEFAULT_PIXEL_RATE;
+ else
+ pixel_rate = v4l2_ctrl_g_ctrl_int64(ctrl);
+
+ av->watermark->vblank = vblank;
+ av->watermark->hblank = hblank;
+ av->watermark->pixel_rate = pixel_rate;
+ if (!pixel_rate) {
+ iwake_watermark = av->isys->iwake_watermark;
+ mutex_lock(&iwake_watermark->mutex);
+ iwake_watermark->force_iwake_disable = true;
+ mutex_unlock(&iwake_watermark->mutex);
+ WARN(1, "%s Invalid pixel_rate, disable iwake.\n", __func__);
+ return;
+ }
+}
+
+static void calculate_stream_datarate(struct video_stream_watermark *watermark)
+{
+ u64 pixels_per_line, bytes_per_line, line_time_ns;
+ u64 pages_per_line, pb_bytes_per_line, stream_data_rate;
+ u16 sram_granulrity_shift =
+ (ipu_ver == IPU_VER_6 || ipu_ver == IPU_VER_6EP) ?
+ IPU6_SRAM_GRANULRITY_SHIFT : IPU6SE_SRAM_GRANULRITY_SHIFT;
+ u16 sram_granulrity_size =
+ (ipu_ver == IPU_VER_6 || ipu_ver == IPU_VER_6EP) ?
+ IPU6_SRAM_GRANULRITY_SIZE : IPU6SE_SRAM_GRANULRITY_SIZE;
+
+ pixels_per_line = watermark->width + watermark->hblank;
+ line_time_ns =
+ pixels_per_line * 1000 / (watermark->pixel_rate / 1000000);
+ /* 2 bytes per Bayer pixel */
+ bytes_per_line = watermark->width << 1;
+ /* bytes to IS pixel buffer pages */
+ pages_per_line = bytes_per_line >> sram_granulrity_shift;
+
+ /* pages for each line */
+ pages_per_line = DIV_ROUND_UP(bytes_per_line,
+ sram_granulrity_size);
+ pb_bytes_per_line = pages_per_line << sram_granulrity_shift;
+
+ /* data rate MB/s */
+ stream_data_rate = (pb_bytes_per_line * 1000) / line_time_ns;
+ watermark->stream_data_rate = stream_data_rate;
+}
+
+static void update_stream_watermark(struct ipu_isys_video *av, bool state)
+{
+ struct isys_iwake_watermark *iwake_watermark;
+
+ iwake_watermark = av->isys->iwake_watermark;
+ if (state) {
+ calculate_stream_datarate(av->watermark);
+ mutex_lock(&iwake_watermark->mutex);
+ list_add(&av->watermark->stream_node,
+ &iwake_watermark->video_list);
+ mutex_unlock(&iwake_watermark->mutex);
+ } else {
+ av->watermark->stream_data_rate = 0;
+ mutex_lock(&iwake_watermark->mutex);
+ list_del(&av->watermark->stream_node);
+ mutex_unlock(&iwake_watermark->mutex);
+ }
+ update_watermark_setting(av->isys);
+}
+
+int ipu_isys_video_set_streaming(struct ipu_isys_video *av,
+ unsigned int state,
+ struct ipu_isys_buffer_list *bl)
+{
+ struct device *dev = &av->isys->adev->dev;
+ struct media_device *mdev = av->vdev.entity.graph_obj.mdev;
+ struct media_entity_enum entities;
+
+ struct media_entity *entity, *entity2;
+ struct ipu_isys_pipeline *ip =
+ to_ipu_isys_pipeline(av->vdev.entity.pipe);
+ struct v4l2_subdev *sd, *esd;
+ int rval = 0;
+
+ dev_dbg(dev, "set stream: %d\n", state);
+
+ if (!ip->external->entity) {
+ WARN_ON(1);
+ return -ENODEV;
+ }
+ esd = media_entity_to_v4l2_subdev(ip->external->entity);
+
+ if (state) {
+ rval = media_graph_walk_init(&ip->graph, mdev);
+ if (rval)
+ return rval;
+ rval = media_entity_enum_init(&entities, mdev);
+ if (rval)
+ goto out_media_entity_graph_init;
+ }
+
+ if (!state) {
+ stop_streaming_firmware(av);
+
+ /* stop external sub-device now. */
+ dev_info(dev, "stream off %s\n", ip->external->entity->name);
+
+ v4l2_subdev_call(esd, video, s_stream, state);
+ }
+
+ mutex_lock(&mdev->graph_mutex);
+
+ media_graph_walk_start(&ip->graph,
+ &av->vdev.entity);
+
+ while ((entity = media_graph_walk_next(&ip->graph))) {
+ sd = media_entity_to_v4l2_subdev(entity);
+
+ /* Non-subdev nodes can be safely ignored here. */
+ if (!is_media_entity_v4l2_subdev(entity))
+ continue;
+
+ /* Don't start truly external devices quite yet. */
+ if (strncmp(sd->name, IPU_ISYS_ENTITY_PREFIX,
+ strlen(IPU_ISYS_ENTITY_PREFIX)) != 0 ||
+ ip->external->entity == entity)
+ continue;
+
+ dev_dbg(dev, "s_stream %s entity %s\n", state ? "on" : "off",
+ entity->name);
+ rval = v4l2_subdev_call(sd, video, s_stream, state);
+ if (!state)
+ continue;
+ if (rval && rval != -ENOIOCTLCMD) {
+ mutex_unlock(&mdev->graph_mutex);
+ goto out_media_entity_stop_streaming;
+ }
+
+ media_entity_enum_set(&entities, entity);
+ }
+
+ mutex_unlock(&mdev->graph_mutex);
+
+ if (av->aq.css_pin_type == IPU_FW_ISYS_PIN_TYPE_RAW_SOC) {
+ if (state)
+ configure_stream_watermark(av);
+ update_stream_watermark(av, state);
+ }
+
+ /* Oh crap */
+ if (state) {
+ rval = start_stream_firmware(av, bl);
+ if (rval)
+ goto out_media_entity_stop_streaming;
+
+ dev_dbg(dev, "set stream: source %d, stream_handle %d\n",
+ ip->source, ip->stream_handle);
+
+ /* Start external sub-device now. */
+ dev_info(dev, "stream on %s\n", ip->external->entity->name);
+
+ rval = v4l2_subdev_call(esd, video, s_stream, state);
+ if (rval)
+ goto out_media_entity_stop_streaming_firmware;
+ } else {
+ close_streaming_firmware(av);
+ }
+
+ if (state)
+ media_entity_enum_cleanup(&entities);
+ else
+ media_graph_walk_cleanup(&ip->graph);
+ av->streaming = state;
+
+ return 0;
+
+out_media_entity_stop_streaming_firmware:
+ stop_streaming_firmware(av);
+
+out_media_entity_stop_streaming:
+ mutex_lock(&mdev->graph_mutex);
+
+ media_graph_walk_start(&ip->graph,
+ &av->vdev.entity);
+
+ while (state && (entity2 = media_graph_walk_next(&ip->graph)) &&
+ entity2 != entity) {
+ sd = media_entity_to_v4l2_subdev(entity2);
+
+ if (!media_entity_enum_test(&entities, entity2))
+ continue;
+
+ v4l2_subdev_call(sd, video, s_stream, 0);
+ }
+
+ mutex_unlock(&mdev->graph_mutex);
+
+ media_entity_enum_cleanup(&entities);
+
+out_media_entity_graph_init:
+ media_graph_walk_cleanup(&ip->graph);
+
+ return rval;
+}
+
+#ifdef CONFIG_COMPAT
+static long ipu_isys_compat_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ long ret = -ENOIOCTLCMD;
+ void __user *up = compat_ptr(arg);
+
+ /*
+ * at present, there is not any private IOCTL need to compat handle
+ */
+ if (file->f_op->unlocked_ioctl)
+ ret = file->f_op->unlocked_ioctl(file, cmd, (unsigned long)up);
+
+ return ret;
+}
+#endif
+
+static const struct v4l2_ioctl_ops ioctl_ops_mplane = {
+ .vidioc_querycap = ipu_isys_vidioc_querycap,
+ .vidioc_enum_fmt_vid_cap = ipu_isys_vidioc_enum_fmt,
+ .vidioc_g_fmt_vid_cap_mplane = vidioc_g_fmt_vid_cap_mplane,
+ .vidioc_s_fmt_vid_cap_mplane = vidioc_s_fmt_vid_cap_mplane,
+ .vidioc_try_fmt_vid_cap_mplane = vidioc_try_fmt_vid_cap_mplane,
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_create_bufs = vb2_ioctl_create_bufs,
+ .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
+ .vidioc_expbuf = vb2_ioctl_expbuf,
+ .vidioc_default = ipu_isys_vidioc_private,
+ .vidioc_enum_input = vidioc_enum_input,
+ .vidioc_g_input = vidioc_g_input,
+ .vidioc_s_input = vidioc_s_input,
+};
+
+static const struct media_entity_operations entity_ops = {
+ .link_validate = link_validate,
+};
+
+static const struct v4l2_file_operations isys_fops = {
+ .owner = THIS_MODULE,
+ .poll = vb2_fop_poll,
+ .unlocked_ioctl = video_ioctl2,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl32 = ipu_isys_compat_ioctl,
+#endif
+ .mmap = vb2_fop_mmap,
+ .open = video_open,
+ .release = video_release,
+};
+
+/*
+ * Do everything that's needed to initialise things related to video
+ * buffer queue, video node, and the related media entity. The caller
+ * is expected to assign isys field and set the name of the video
+ * device.
+ */
+int ipu_isys_video_init(struct ipu_isys_video *av,
+ struct media_entity *entity,
+ unsigned int pad, unsigned long pad_flags,
+ unsigned int flags)
+{
+ const struct v4l2_ioctl_ops *ioctl_ops = NULL;
+ int rval;
+
+ mutex_init(&av->mutex);
+ init_completion(&av->ip.stream_open_completion);
+ init_completion(&av->ip.stream_close_completion);
+ init_completion(&av->ip.stream_start_completion);
+ init_completion(&av->ip.stream_stop_completion);
+ INIT_LIST_HEAD(&av->ip.queues);
+ spin_lock_init(&av->ip.short_packet_queue_lock);
+ av->ip.isys = av->isys;
+
+ if (!av->watermark) {
+ av->watermark = kzalloc(sizeof(*av->watermark), GFP_KERNEL);
+ if (!av->watermark) {
+ rval = -ENOMEM;
+ goto out_mutex_destroy;
+ }
+ }
+
+ av->vdev.device_caps = V4L2_CAP_STREAMING;
+ if (pad_flags & MEDIA_PAD_FL_SINK) {
+ av->aq.vbq.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+ ioctl_ops = &ioctl_ops_mplane;
+ av->vdev.device_caps |= V4L2_CAP_VIDEO_CAPTURE_MPLANE;
+ av->vdev.vfl_dir = VFL_DIR_RX;
+ } else {
+ av->aq.vbq.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+ av->vdev.vfl_dir = VFL_DIR_TX;
+ av->vdev.device_caps |= V4L2_CAP_VIDEO_OUTPUT_MPLANE;
+ }
+ rval = ipu_isys_queue_init(&av->aq);
+ if (rval)
+ goto out_mutex_destroy;
+
+ av->pad.flags = pad_flags | MEDIA_PAD_FL_MUST_CONNECT;
+ rval = media_entity_pads_init(&av->vdev.entity, 1, &av->pad);
+ if (rval)
+ goto out_ipu_isys_queue_cleanup;
+
+ av->vdev.entity.ops = &entity_ops;
+ av->vdev.release = video_device_release_empty;
+ av->vdev.fops = &isys_fops;
+ av->vdev.v4l2_dev = &av->isys->v4l2_dev;
+ if (!av->vdev.ioctl_ops)
+ av->vdev.ioctl_ops = ioctl_ops;
+ av->vdev.queue = &av->aq.vbq;
+ av->vdev.lock = &av->mutex;
+ set_bit(V4L2_FL_USES_V4L2_FH, &av->vdev.flags);
+ video_set_drvdata(&av->vdev, av);
+
+ mutex_lock(&av->mutex);
+
+ rval = video_register_device(&av->vdev, VFL_TYPE_VIDEO, -1);
+ if (rval)
+ goto out_media_entity_cleanup;
+
+ if (pad_flags & MEDIA_PAD_FL_SINK)
+ rval = media_create_pad_link(entity, pad,
+ &av->vdev.entity, 0, flags);
+ else
+ rval = media_create_pad_link(&av->vdev.entity, 0, entity,
+ pad, flags);
+ if (rval) {
+ dev_info(&av->isys->adev->dev, "can't create link\n");
+ goto out_media_entity_cleanup;
+ }
+
+ av->pfmt = av->try_fmt_vid_mplane(av, &av->mpix);
+
+ mutex_unlock(&av->mutex);
+
+ return rval;
+
+out_media_entity_cleanup:
+ video_unregister_device(&av->vdev);
+ mutex_unlock(&av->mutex);
+ media_entity_cleanup(&av->vdev.entity);
+
+out_ipu_isys_queue_cleanup:
+ ipu_isys_queue_cleanup(&av->aq);
+
+out_mutex_destroy:
+ kfree(av->watermark);
+ mutex_destroy(&av->mutex);
+
+ return rval;
+}
+
+void ipu_isys_video_cleanup(struct ipu_isys_video *av)
+{
+ kfree(av->watermark);
+ video_unregister_device(&av->vdev);
+ media_entity_cleanup(&av->vdev.entity);
+ mutex_destroy(&av->mutex);
+ ipu_isys_queue_cleanup(&av->aq);
+}
diff --git a/drivers/media/pci/intel/ipu-isys-video.h b/drivers/media/pci/intel/ipu-isys-video.h
new file mode 100644
index 0000000000000..6ed17cb9e93d9
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-isys-video.h
@@ -0,0 +1,178 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2013 - 2020 Intel Corporation */
+
+#ifndef IPU_ISYS_VIDEO_H
+#define IPU_ISYS_VIDEO_H
+
+#include <linux/mutex.h>
+#include <linux/list.h>
+#include <linux/videodev2.h>
+#include <media/media-entity.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-subdev.h>
+
+#include "ipu-isys-queue.h"
+
+#define IPU_ISYS_OUTPUT_PINS 11
+#define IPU_NUM_CAPTURE_DONE 2
+#define IPU_ISYS_MAX_PARALLEL_SOF 2
+
+struct ipu_isys;
+struct ipu_isys_csi2_be_soc;
+struct ipu_fw_isys_stream_cfg_data_abi;
+
+struct ipu_isys_pixelformat {
+ u32 pixelformat;
+ u32 bpp;
+ u32 bpp_packed;
+ u32 bpp_planar;
+ u32 code;
+ u32 css_pixelformat;
+};
+
+struct sequence_info {
+ unsigned int sequence;
+ u64 timestamp;
+};
+
+struct output_pin_data {
+ void (*pin_ready)(struct ipu_isys_pipeline *ip,
+ struct ipu_fw_isys_resp_info_abi *info);
+ struct ipu_isys_queue *aq;
+};
+
+struct ipu_isys_pipeline {
+ struct media_pipeline pipe;
+ struct media_pad *external;
+ atomic_t sequence;
+ unsigned int seq_index;
+ struct sequence_info seq[IPU_ISYS_MAX_PARALLEL_SOF];
+ int source; /* SSI stream source */
+ int stream_handle; /* stream handle for CSS API */
+ unsigned int nr_output_pins; /* How many firmware pins? */
+ enum ipu_isl_mode isl_mode;
+ struct ipu_isys_csi2_be *csi2_be;
+ struct ipu_isys_csi2_be_soc *csi2_be_soc;
+ struct ipu_isys_csi2 *csi2;
+
+ /*
+ * Number of capture queues, write access serialised using struct
+ * ipu_isys.stream_mutex
+ */
+ int nr_queues;
+ int nr_streaming; /* Number of capture queues streaming */
+ int streaming; /* Has streaming been really started? */
+ struct list_head queues;
+ struct completion stream_open_completion;
+ struct completion stream_close_completion;
+ struct completion stream_start_completion;
+ struct completion stream_stop_completion;
+ struct ipu_isys *isys;
+
+ void (*capture_done[IPU_NUM_CAPTURE_DONE])
+ (struct ipu_isys_pipeline *ip,
+ struct ipu_fw_isys_resp_info_abi *resp);
+ struct output_pin_data output_pins[IPU_ISYS_OUTPUT_PINS];
+ bool has_sof;
+ bool interlaced;
+ int error;
+ struct ipu_isys_private_buffer *short_packet_bufs;
+ size_t short_packet_buffer_size;
+ unsigned int num_short_packet_lines;
+ unsigned int short_packet_output_pin;
+ unsigned int cur_field;
+ struct list_head short_packet_incoming;
+ struct list_head short_packet_active;
+ /* Serialize access to short packet active and incoming lists */
+ spinlock_t short_packet_queue_lock;
+ struct list_head pending_interlaced_bufs;
+ unsigned int short_packet_trace_index;
+ struct media_graph graph;
+ struct media_entity_enum entity_enum;
+};
+
+#define to_ipu_isys_pipeline(__pipe) \
+ container_of((__pipe), struct ipu_isys_pipeline, pipe)
+
+struct video_stream_watermark {
+ u32 width;
+ u32 height;
+ u32 vblank;
+ u32 hblank;
+ u32 frame_rate;
+ u64 pixel_rate;
+ u64 stream_data_rate;
+ struct list_head stream_node;
+};
+
+struct ipu_isys_video {
+ /* Serialise access to other fields in the struct. */
+ struct mutex mutex;
+ struct media_pad pad;
+ struct video_device vdev;
+ struct v4l2_pix_format_mplane mpix;
+ const struct ipu_isys_pixelformat *pfmts;
+ const struct ipu_isys_pixelformat *pfmt;
+ struct ipu_isys_queue aq;
+ struct ipu_isys *isys;
+ struct ipu_isys_pipeline ip;
+ unsigned int streaming;
+ bool packed;
+ bool compression;
+ struct v4l2_ctrl_handler ctrl_handler;
+ struct v4l2_ctrl *compression_ctrl;
+ unsigned int ts_offsets[VIDEO_MAX_PLANES];
+ unsigned int line_header_length; /* bits */
+ unsigned int line_footer_length; /* bits */
+
+ struct video_stream_watermark *watermark;
+
+ const struct ipu_isys_pixelformat *
+ (*try_fmt_vid_mplane)(struct ipu_isys_video *av,
+ struct v4l2_pix_format_mplane *mpix);
+ void (*prepare_fw_stream)(struct ipu_isys_video *av,
+ struct ipu_fw_isys_stream_cfg_data_abi *cfg);
+};
+
+#define ipu_isys_queue_to_video(__aq) \
+ container_of(__aq, struct ipu_isys_video, aq)
+
+extern const struct ipu_isys_pixelformat ipu_isys_pfmts[];
+extern const struct ipu_isys_pixelformat ipu_isys_pfmts_be_soc[];
+extern const struct ipu_isys_pixelformat ipu_isys_pfmts_packed[];
+
+const struct ipu_isys_pixelformat *
+ipu_isys_get_pixelformat(struct ipu_isys_video *av, u32 pixelformat);
+
+int ipu_isys_vidioc_querycap(struct file *file, void *fh,
+ struct v4l2_capability *cap);
+
+int ipu_isys_vidioc_enum_fmt(struct file *file, void *fh,
+ struct v4l2_fmtdesc *f);
+
+const struct ipu_isys_pixelformat *
+ipu_isys_video_try_fmt_vid_mplane_default(struct ipu_isys_video *av,
+ struct v4l2_pix_format_mplane *mpix);
+
+const struct ipu_isys_pixelformat *
+ipu_isys_video_try_fmt_vid_mplane(struct ipu_isys_video *av,
+ struct v4l2_pix_format_mplane *mpix,
+ int store_csi2_header);
+
+void
+ipu_isys_prepare_fw_cfg_default(struct ipu_isys_video *av,
+ struct ipu_fw_isys_stream_cfg_data_abi *cfg);
+int ipu_isys_video_prepare_streaming(struct ipu_isys_video *av,
+ unsigned int state);
+int ipu_isys_video_set_streaming(struct ipu_isys_video *av, unsigned int state,
+ struct ipu_isys_buffer_list *bl);
+int ipu_isys_video_init(struct ipu_isys_video *av, struct media_entity *source,
+ unsigned int source_pad, unsigned long pad_flags,
+ unsigned int flags);
+void ipu_isys_video_cleanup(struct ipu_isys_video *av);
+void ipu_isys_video_add_capture_done(struct ipu_isys_pipeline *ip,
+ void (*capture_done)
+ (struct ipu_isys_pipeline *ip,
+ struct ipu_fw_isys_resp_info_abi *resp));
+
+#endif /* IPU_ISYS_VIDEO_H */
diff --git a/drivers/media/pci/intel/ipu-isys.c b/drivers/media/pci/intel/ipu-isys.c
new file mode 100644
index 0000000000000..69df93bf7b021
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-isys.c
@@ -0,0 +1,1355 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2013 - 2021 Intel Corporation
+
+#include <linux/debugfs.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/firmware.h>
+#include <linux/kthread.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/string.h>
+#include <linux/sched.h>
+#include <linux/version.h>
+
+#include <media/ipu-isys.h>
+#include <media/v4l2-mc.h>
+#include <media/v4l2-subdev.h>
+#include <media/v4l2-fwnode.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-async.h>
+#include "ipu.h"
+#include "ipu-bus.h"
+#include "ipu-cpd.h"
+#include "ipu-mmu.h"
+#include "ipu-dma.h"
+#include "ipu-isys.h"
+#include "ipu-isys-csi2.h"
+#include "ipu-isys-video.h"
+#include "ipu-platform-regs.h"
+#include "ipu-buttress.h"
+#include "ipu-platform.h"
+#include "ipu-platform-buttress-regs.h"
+
+#define ISYS_PM_QOS_VALUE 300
+
+#define IPU_BUTTRESS_FABIC_CONTROL 0x68
+#define GDA_ENABLE_IWAKE_INDEX 2
+#define GDA_IWAKE_THRESHOLD_INDEX 1
+#define GDA_IRQ_CRITICAL_THRESHOLD_INDEX 0
+
+/* LTR & DID value are 10 bit at most */
+#define LTR_DID_VAL_MAX 1023
+#define LTR_DEFAULT_VALUE 0x70503C19
+#define FILL_TIME_DEFAULT_VALUE 0xFFF0783C
+#define LTR_DID_PKGC_2R 20
+#define LTR_DID_PKGC_8 100
+#define LTR_SCALE_DEFAULT 5
+#define LTR_SCALE_1024NS 2
+#define REG_PKGC_PMON_CFG 0xB00
+
+#define VAL_PKGC_PMON_CFG_RESET 0x38
+#define VAL_PKGC_PMON_CFG_START 0x7
+
+#define IS_PIXEL_BUFFER_PAGES 0x80
+/* BIOS provides the driver the LTR and threshold information in IPU,
+ * IS pixel buffer is 256KB, MaxSRAMSize is 200KB on IPU6.
+ */
+#define IPU6_MAX_SRAM_SIZE (200 << 10)
+/* IS pixel buffer is 128KB, MaxSRAMSize is 96KB on IPU6SE.
+ */
+#define IPU6SE_MAX_SRAM_SIZE (96 << 10)
+/* When iwake mode is disabled the critical threshold is statically set to 75%
+ * of the IS pixel buffer criticalThreshold = (128 * 3) / 4
+ */
+#define CRITICAL_THRESHOLD_IWAKE_DISABLE (IS_PIXEL_BUFFER_PAGES * 3 / 4)
+
+union fabric_ctrl {
+ struct {
+ u16 ltr_val : 10;
+ u16 ltr_scale : 3;
+ u16 RSVD1 : 3;
+ u16 did_val : 10;
+ u16 did_scale : 3;
+ u16 RSVD2 : 1;
+ u16 keep_power_in_D0 : 1;
+ u16 keep_power_override : 1;
+ } bits;
+ u32 value;
+};
+
+enum ltr_did_type {
+ LTR_IWAKE_ON,
+ LTR_IWAKE_OFF,
+ LTR_ISYS_ON,
+ LTR_ISYS_OFF,
+ LTR_TYPE_MAX
+};
+
+static int
+isys_complete_ext_device_registration(struct ipu_isys *isys,
+ struct v4l2_subdev *sd,
+ struct ipu_isys_csi2_config *csi2)
+{
+ unsigned int i;
+ int rval;
+
+ v4l2_set_subdev_hostdata(sd, csi2);
+
+ for (i = 0; i < sd->entity.num_pads; i++) {
+ if (sd->entity.pads[i].flags & MEDIA_PAD_FL_SOURCE)
+ break;
+ }
+
+ if (i == sd->entity.num_pads) {
+ dev_warn(&isys->adev->dev,
+ "no source pad in external entity\n");
+ rval = -ENOENT;
+ goto skip_unregister_subdev;
+ }
+
+ rval = media_create_pad_link(&sd->entity, i,
+ &isys->csi2[csi2->port].asd.sd.entity,
+ 0, 0);
+ if (rval) {
+ dev_warn(&isys->adev->dev, "can't create link\n");
+ goto skip_unregister_subdev;
+ }
+
+ isys->csi2[csi2->port].nlanes = csi2->nlanes;
+ return 0;
+
+skip_unregister_subdev:
+ v4l2_device_unregister_subdev(sd);
+ return rval;
+}
+
+static void isys_unregister_subdevices(struct ipu_isys *isys)
+{
+ const struct ipu_isys_internal_csi2_pdata *csi2 =
+ &isys->pdata->ipdata->csi2;
+ unsigned int i;
+
+ for (i = 0; i < NR_OF_CSI2_BE_SOC_DEV; i++)
+ ipu_isys_csi2_be_soc_cleanup(&isys->csi2_be_soc[i]);
+
+ for (i = 0; i < csi2->nports; i++)
+ ipu_isys_csi2_cleanup(&isys->csi2[i]);
+}
+
+static int isys_register_subdevices(struct ipu_isys *isys)
+{
+ const struct ipu_isys_internal_csi2_pdata *csi2 =
+ &isys->pdata->ipdata->csi2;
+ struct ipu_isys_csi2_be_soc *csi2_be_soc;
+ unsigned int i, k;
+ int rval;
+
+ isys->csi2 = devm_kcalloc(&isys->adev->dev, csi2->nports,
+ sizeof(*isys->csi2), GFP_KERNEL);
+ if (!isys->csi2) {
+ rval = -ENOMEM;
+ goto fail;
+ }
+
+ for (i = 0; i < csi2->nports; i++) {
+ rval = ipu_isys_csi2_init(&isys->csi2[i], isys,
+ isys->pdata->base +
+ csi2->offsets[i], i);
+ if (rval)
+ goto fail;
+
+ isys->isr_csi2_bits |= IPU_ISYS_UNISPART_IRQ_CSI2(i);
+ }
+
+ for (k = 0; k < NR_OF_CSI2_BE_SOC_DEV; k++) {
+ rval = ipu_isys_csi2_be_soc_init(&isys->csi2_be_soc[k],
+ isys, k);
+ if (rval) {
+ dev_info(&isys->adev->dev,
+ "can't register csi2 soc be device %d\n", k);
+ goto fail;
+ }
+ }
+
+ for (i = 0; i < csi2->nports; i++) {
+ for (k = 0; k < NR_OF_CSI2_BE_SOC_DEV; k++) {
+ csi2_be_soc = &isys->csi2_be_soc[k];
+ rval =
+ media_create_pad_link(&isys->csi2[i].asd.sd.entity,
+ CSI2_PAD_SOURCE,
+ &csi2_be_soc->asd.sd.entity,
+ CSI2_BE_SOC_PAD_SINK, 0);
+ if (rval) {
+ dev_info(&isys->adev->dev,
+ "can't create link csi2->be_soc\n");
+ goto fail;
+ }
+ }
+ }
+
+ return 0;
+
+fail:
+ isys_unregister_subdevices(isys);
+ return rval;
+}
+
+/* read ltrdid threshold values from BIOS or system configuration */
+static void get_lut_ltrdid(struct ipu_isys *isys, struct ltr_did *pltr_did)
+{
+ struct isys_iwake_watermark *iwake_watermark = isys->iwake_watermark;
+ /* default values*/
+ struct ltr_did ltrdid_default;
+
+ ltrdid_default.lut_ltr.value = LTR_DEFAULT_VALUE;
+ ltrdid_default.lut_fill_time.value = FILL_TIME_DEFAULT_VALUE;
+
+ if (iwake_watermark->ltrdid.lut_ltr.value)
+ *pltr_did = iwake_watermark->ltrdid;
+ else
+ *pltr_did = ltrdid_default;
+}
+
+static int set_iwake_register(struct ipu_isys *isys, u32 index, u32 value)
+{
+ int ret = 0;
+ u32 req_id = index;
+ u32 offset = 0;
+
+ ret = ipu_fw_isys_send_proxy_token(isys, req_id, index, offset, value);
+ if (ret)
+ dev_err(&isys->adev->dev, "write %d failed %d", index, ret);
+
+ return ret;
+}
+
+/*
+ * When input system is powered up and before enabling any new sensor capture,
+ * or after disabling any sensor capture the following values need to be set:
+ * LTR_value = LTR(usec) from calculation;
+ * LTR_scale = 2;
+ * DID_value = DID(usec) from calculation;
+ * DID_scale = 2;
+ *
+ * When input system is powered down, the LTR and DID values
+ * must be returned to the default values:
+ * LTR_value = 1023;
+ * LTR_scale = 5;
+ * DID_value = 1023;
+ * DID_scale = 2;
+ */
+static void set_iwake_ltrdid(struct ipu_isys *isys,
+ u16 ltr,
+ u16 did,
+ enum ltr_did_type use)
+{
+ /* did_scale will set to 2= 1us */
+ u16 ltr_val, ltr_scale, did_val;
+ union fabric_ctrl fc;
+ struct ipu_device *isp = isys->adev->isp;
+
+ switch (use) {
+ case LTR_IWAKE_ON:
+ ltr_val = min_t(u16, ltr, (u16)LTR_DID_VAL_MAX);
+ did_val = min_t(u16, did, (u16)LTR_DID_VAL_MAX);
+ ltr_scale = (ltr == LTR_DID_VAL_MAX &&
+ did == LTR_DID_VAL_MAX) ?
+ LTR_SCALE_DEFAULT : LTR_SCALE_1024NS;
+ break;
+ case LTR_ISYS_ON:
+ case LTR_IWAKE_OFF:
+ ltr_val = LTR_DID_PKGC_2R;
+ did_val = LTR_DID_PKGC_2R;
+ ltr_scale = LTR_SCALE_1024NS;
+ break;
+ case LTR_ISYS_OFF:
+ ltr_val = LTR_DID_VAL_MAX;
+ did_val = LTR_DID_VAL_MAX;
+ ltr_scale = LTR_SCALE_DEFAULT;
+ break;
+ default:
+ return;
+ }
+
+ fc.value = readl(isp->base + IPU_BUTTRESS_FABIC_CONTROL);
+ fc.bits.ltr_val = ltr_val;
+ fc.bits.ltr_scale = ltr_scale;
+ fc.bits.did_val = did_val;
+ fc.bits.did_scale = 2;
+ dev_dbg(&isys->adev->dev,
+ "%s ltr: %d did: %d", __func__, ltr_val, did_val);
+ writel(fc.value, isp->base + IPU_BUTTRESS_FABIC_CONTROL);
+}
+
+/* SW driver may clear register GDA_ENABLE_IWAKE before the FW configures the
+ * stream for debug purposes. Otherwise SW should not access this register.
+ */
+static int enable_iwake(struct ipu_isys *isys, bool enable)
+{
+ int ret = 0;
+ struct isys_iwake_watermark *iwake_watermark = isys->iwake_watermark;
+
+ mutex_lock(&iwake_watermark->mutex);
+ if (iwake_watermark->iwake_enabled == enable) {
+ mutex_unlock(&iwake_watermark->mutex);
+ return ret;
+ }
+ ret = set_iwake_register(isys, GDA_ENABLE_IWAKE_INDEX, enable);
+ if (!ret)
+ iwake_watermark->iwake_enabled = enable;
+ mutex_unlock(&iwake_watermark->mutex);
+ return ret;
+}
+
+void update_watermark_setting(struct ipu_isys *isys)
+{
+ struct isys_iwake_watermark *iwake_watermark = isys->iwake_watermark;
+ struct list_head *stream_node;
+ struct video_stream_watermark *p_watermark;
+ struct ltr_did ltrdid;
+ u16 calc_fill_time_us = 0;
+ u16 ltr = 0;
+ u16 did = 0;
+ u32 iwake_threshold, iwake_critical_threshold;
+ u64 threshold_bytes;
+ u64 isys_pb_datarate_mbs = 0;
+ u16 sram_granulrity_shift =
+ (ipu_ver == IPU_VER_6 || ipu_ver == IPU_VER_6EP) ?
+ IPU6_SRAM_GRANULRITY_SHIFT : IPU6SE_SRAM_GRANULRITY_SHIFT;
+ int max_sram_size =
+ (ipu_ver == IPU_VER_6 || ipu_ver == IPU_VER_6EP) ?
+ IPU6_MAX_SRAM_SIZE : IPU6SE_MAX_SRAM_SIZE;
+
+ mutex_lock(&iwake_watermark->mutex);
+ if (iwake_watermark->force_iwake_disable) {
+ set_iwake_ltrdid(isys, 0, 0, LTR_IWAKE_OFF);
+ set_iwake_register(isys, GDA_IRQ_CRITICAL_THRESHOLD_INDEX,
+ CRITICAL_THRESHOLD_IWAKE_DISABLE);
+ mutex_unlock(&iwake_watermark->mutex);
+ return;
+ }
+
+ if (list_empty(&iwake_watermark->video_list)) {
+ isys_pb_datarate_mbs = 0;
+ } else {
+ list_for_each(stream_node, &iwake_watermark->video_list)
+ {
+ p_watermark = list_entry(stream_node,
+ struct video_stream_watermark,
+ stream_node);
+ isys_pb_datarate_mbs += p_watermark->stream_data_rate;
+ }
+ }
+ mutex_unlock(&iwake_watermark->mutex);
+
+ if (!isys_pb_datarate_mbs) {
+ enable_iwake(isys, false);
+ set_iwake_ltrdid(isys, 0, 0, LTR_IWAKE_OFF);
+ mutex_lock(&iwake_watermark->mutex);
+ set_iwake_register(isys, GDA_IRQ_CRITICAL_THRESHOLD_INDEX,
+ CRITICAL_THRESHOLD_IWAKE_DISABLE);
+ mutex_unlock(&iwake_watermark->mutex);
+ } else {
+ /* should enable iwake by default according to FW */
+ enable_iwake(isys, true);
+ calc_fill_time_us = (u16)(max_sram_size / isys_pb_datarate_mbs);
+ get_lut_ltrdid(isys, <rdid);
+
+ if (calc_fill_time_us <= ltrdid.lut_fill_time.bits.th0)
+ ltr = 0;
+ else if (calc_fill_time_us <= ltrdid.lut_fill_time.bits.th1)
+ ltr = ltrdid.lut_ltr.bits.val0;
+ else if (calc_fill_time_us <= ltrdid.lut_fill_time.bits.th2)
+ ltr = ltrdid.lut_ltr.bits.val1;
+ else if (calc_fill_time_us <= ltrdid.lut_fill_time.bits.th3)
+ ltr = ltrdid.lut_ltr.bits.val2;
+ else
+ ltr = ltrdid.lut_ltr.bits.val3;
+
+ did = calc_fill_time_us - ltr;
+
+ threshold_bytes = did * isys_pb_datarate_mbs;
+ /* calculate iwake threshold with 2KB granularity pages */
+ iwake_threshold =
+ max_t(u32, 1, threshold_bytes >> sram_granulrity_shift);
+
+ iwake_threshold = min_t(u32, iwake_threshold, max_sram_size);
+
+ /* set the critical threshold to halfway between
+ * iwake threshold and the full buffer.
+ */
+ iwake_critical_threshold = iwake_threshold +
+ (IS_PIXEL_BUFFER_PAGES - iwake_threshold) / 2;
+
+ dev_dbg(&isys->adev->dev, "%s threshold: %u critical: %u",
+ __func__, iwake_threshold, iwake_critical_threshold);
+ set_iwake_ltrdid(isys, ltr, did, LTR_IWAKE_ON);
+ mutex_lock(&iwake_watermark->mutex);
+ set_iwake_register(isys,
+ GDA_IWAKE_THRESHOLD_INDEX, iwake_threshold);
+
+ set_iwake_register(isys,
+ GDA_IRQ_CRITICAL_THRESHOLD_INDEX,
+ iwake_critical_threshold);
+ mutex_unlock(&iwake_watermark->mutex);
+
+ writel(VAL_PKGC_PMON_CFG_RESET,
+ isys->adev->isp->base + REG_PKGC_PMON_CFG);
+ writel(VAL_PKGC_PMON_CFG_START,
+ isys->adev->isp->base + REG_PKGC_PMON_CFG);
+ }
+}
+
+static int isys_iwake_watermark_init(struct ipu_isys *isys)
+{
+ struct isys_iwake_watermark *iwake_watermark;
+
+ if (isys->iwake_watermark)
+ return 0;
+
+ iwake_watermark = devm_kzalloc(&isys->adev->dev,
+ sizeof(*iwake_watermark), GFP_KERNEL);
+ if (!iwake_watermark)
+ return -ENOMEM;
+ INIT_LIST_HEAD(&iwake_watermark->video_list);
+ mutex_init(&iwake_watermark->mutex);
+
+ iwake_watermark->ltrdid.lut_ltr.value = 0;
+ isys->iwake_watermark = iwake_watermark;
+ iwake_watermark->isys = isys;
+ iwake_watermark->iwake_enabled = false;
+ iwake_watermark->force_iwake_disable = false;
+ return 0;
+}
+
+static int isys_iwake_watermark_cleanup(struct ipu_isys *isys)
+{
+ struct isys_iwake_watermark *iwake_watermark = isys->iwake_watermark;
+
+ if (!iwake_watermark)
+ return -EINVAL;
+ mutex_lock(&iwake_watermark->mutex);
+ list_del(&iwake_watermark->video_list);
+ mutex_unlock(&iwake_watermark->mutex);
+ mutex_destroy(&iwake_watermark->mutex);
+ isys->iwake_watermark = NULL;
+ return 0;
+}
+
+/* The .bound() notifier callback when a match is found */
+static int isys_notifier_bound(struct v4l2_async_notifier *notifier,
+ struct v4l2_subdev *sd,
+ struct v4l2_async_subdev *asd)
+{
+ struct ipu_isys *isys = container_of(notifier,
+ struct ipu_isys, notifier);
+ struct sensor_async_subdev *s_asd = container_of(asd,
+ struct sensor_async_subdev, asd);
+
+ dev_info(&isys->adev->dev, "bind %s nlanes is %d port is %d\n",
+ sd->name, s_asd->csi2.nlanes, s_asd->csi2.port);
+ isys_complete_ext_device_registration(isys, sd, &s_asd->csi2);
+
+ return v4l2_device_register_subdev_nodes(&isys->v4l2_dev);
+}
+
+static void isys_notifier_unbind(struct v4l2_async_notifier *notifier,
+ struct v4l2_subdev *sd,
+ struct v4l2_async_subdev *asd)
+{
+ struct ipu_isys *isys = container_of(notifier,
+ struct ipu_isys, notifier);
+
+ dev_info(&isys->adev->dev, "unbind %s\n", sd->name);
+}
+
+static int isys_notifier_complete(struct v4l2_async_notifier *notifier)
+{
+ struct ipu_isys *isys = container_of(notifier,
+ struct ipu_isys, notifier);
+
+ dev_info(&isys->adev->dev, "All sensor registration completed.\n");
+
+ return v4l2_device_register_subdev_nodes(&isys->v4l2_dev);
+}
+
+static const struct v4l2_async_notifier_operations isys_async_ops = {
+ .bound = isys_notifier_bound,
+ .unbind = isys_notifier_unbind,
+ .complete = isys_notifier_complete,
+};
+
+static int isys_fwnode_parse(struct device *dev,
+ struct v4l2_fwnode_endpoint *vep,
+ struct v4l2_async_subdev *asd)
+{
+ struct sensor_async_subdev *s_asd =
+ container_of(asd, struct sensor_async_subdev, asd);
+
+ s_asd->csi2.port = vep->base.port;
+ s_asd->csi2.nlanes = vep->bus.mipi_csi2.num_data_lanes;
+
+ return 0;
+}
+
+static int isys_notifier_init(struct ipu_isys *isys)
+{
+ struct ipu_device *isp = isys->adev->isp;
+ size_t asd_struct_size = sizeof(struct sensor_async_subdev);
+ int ret;
+
+ v4l2_async_notifier_init(&isys->notifier);
+ ret = v4l2_async_notifier_parse_fwnode_endpoints(&isp->pdev->dev,
+ &isys->notifier,
+ asd_struct_size,
+ isys_fwnode_parse);
+
+ if (ret < 0) {
+ dev_err(&isys->adev->dev,
+ "v4l2 parse_fwnode_endpoints() failed: %d\n", ret);
+ return ret;
+ }
+
+ if (list_empty(&isys->notifier.asd_list)) {
+ /* isys probe could continue with async subdevs missing */
+ dev_warn(&isys->adev->dev, "no subdev found in graph\n");
+ return 0;
+ }
+
+ isys->notifier.ops = &isys_async_ops;
+ ret = v4l2_async_notifier_register(&isys->v4l2_dev, &isys->notifier);
+ if (ret) {
+ dev_err(&isys->adev->dev,
+ "failed to register async notifier : %d\n", ret);
+ v4l2_async_notifier_cleanup(&isys->notifier);
+ }
+
+ return ret;
+}
+
+static void isys_notifier_cleanup(struct ipu_isys *isys)
+{
+ v4l2_async_notifier_unregister(&isys->notifier);
+ v4l2_async_notifier_cleanup(&isys->notifier);
+}
+
+static struct media_device_ops isys_mdev_ops = {
+ .link_notify = v4l2_pipeline_link_notify,
+};
+
+static int isys_register_devices(struct ipu_isys *isys)
+{
+ int rval;
+
+ isys->media_dev.dev = &isys->adev->dev;
+ isys->media_dev.ops = &isys_mdev_ops;
+ strlcpy(isys->media_dev.model,
+ IPU_MEDIA_DEV_MODEL_NAME, sizeof(isys->media_dev.model));
+ snprintf(isys->media_dev.bus_info, sizeof(isys->media_dev.bus_info),
+ "pci:%s", dev_name(isys->adev->dev.parent->parent));
+ strlcpy(isys->v4l2_dev.name, isys->media_dev.model,
+ sizeof(isys->v4l2_dev.name));
+
+ media_device_init(&isys->media_dev);
+
+ rval = media_device_register(&isys->media_dev);
+ if (rval < 0) {
+ dev_info(&isys->adev->dev, "can't register media device\n");
+ goto out_media_device_unregister;
+ }
+
+ isys->v4l2_dev.mdev = &isys->media_dev;
+
+ rval = v4l2_device_register(&isys->adev->dev, &isys->v4l2_dev);
+ if (rval < 0) {
+ dev_info(&isys->adev->dev, "can't register v4l2 device\n");
+ goto out_media_device_unregister;
+ }
+
+ rval = isys_register_subdevices(isys);
+ if (rval)
+ goto out_v4l2_device_unregister;
+
+ rval = isys_notifier_init(isys);
+ if (rval)
+ goto out_isys_unregister_subdevices;
+
+ rval = v4l2_device_register_subdev_nodes(&isys->v4l2_dev);
+ if (rval)
+ goto out_isys_notifier_cleanup;
+
+ return 0;
+
+out_isys_notifier_cleanup:
+ isys_notifier_cleanup(isys);
+
+out_isys_unregister_subdevices:
+ isys_unregister_subdevices(isys);
+
+out_v4l2_device_unregister:
+ v4l2_device_unregister(&isys->v4l2_dev);
+
+out_media_device_unregister:
+ media_device_unregister(&isys->media_dev);
+ media_device_cleanup(&isys->media_dev);
+
+ return rval;
+}
+
+static void isys_unregister_devices(struct ipu_isys *isys)
+{
+ isys_unregister_subdevices(isys);
+ v4l2_device_unregister(&isys->v4l2_dev);
+ media_device_unregister(&isys->media_dev);
+ media_device_cleanup(&isys->media_dev);
+}
+
+#ifdef CONFIG_PM
+static int isys_runtime_pm_resume(struct device *dev)
+{
+ struct ipu_bus_device *adev = to_ipu_bus_device(dev);
+ struct ipu_device *isp = adev->isp;
+ struct ipu_isys *isys = ipu_bus_get_drvdata(adev);
+ unsigned long flags;
+ int ret;
+
+ if (!isys)
+ return 0;
+
+ ret = ipu_mmu_hw_init(adev->mmu);
+ if (ret)
+ return ret;
+
+ ipu_trace_restore(dev);
+
+ cpu_latency_qos_update_request(&isys->pm_qos, ISYS_PM_QOS_VALUE);
+
+ ret = ipu_buttress_start_tsc_sync(isp);
+ if (ret)
+ return ret;
+
+ spin_lock_irqsave(&isys->power_lock, flags);
+ isys->power = 1;
+ spin_unlock_irqrestore(&isys->power_lock, flags);
+
+ if (isys->short_packet_source == IPU_ISYS_SHORT_PACKET_FROM_TUNIT) {
+ mutex_lock(&isys->short_packet_tracing_mutex);
+ isys->short_packet_tracing_count = 0;
+ mutex_unlock(&isys->short_packet_tracing_mutex);
+ }
+ isys_setup_hw(isys);
+
+ set_iwake_ltrdid(isys, 0, 0, LTR_ISYS_ON);
+ return 0;
+}
+
+static int isys_runtime_pm_suspend(struct device *dev)
+{
+ struct ipu_bus_device *adev = to_ipu_bus_device(dev);
+ struct ipu_isys *isys = ipu_bus_get_drvdata(adev);
+ unsigned long flags;
+
+ if (!isys)
+ return 0;
+
+ spin_lock_irqsave(&isys->power_lock, flags);
+ isys->power = 0;
+ spin_unlock_irqrestore(&isys->power_lock, flags);
+
+ ipu_trace_stop(dev);
+ mutex_lock(&isys->mutex);
+ isys->reset_needed = false;
+ mutex_unlock(&isys->mutex);
+
+ cpu_latency_qos_update_request(&isys->pm_qos, PM_QOS_DEFAULT_VALUE);
+
+ ipu_mmu_hw_cleanup(adev->mmu);
+
+ set_iwake_ltrdid(isys, 0, 0, LTR_ISYS_OFF);
+ return 0;
+}
+
+static int isys_suspend(struct device *dev)
+{
+ struct ipu_bus_device *adev = to_ipu_bus_device(dev);
+ struct ipu_isys *isys = ipu_bus_get_drvdata(adev);
+
+ /* If stream is open, refuse to suspend */
+ if (isys->stream_opened)
+ return -EBUSY;
+
+ return 0;
+}
+
+static int isys_resume(struct device *dev)
+{
+ return 0;
+}
+
+static const struct dev_pm_ops isys_pm_ops = {
+ .runtime_suspend = isys_runtime_pm_suspend,
+ .runtime_resume = isys_runtime_pm_resume,
+ .suspend = isys_suspend,
+ .resume = isys_resume,
+};
+
+#define ISYS_PM_OPS (&isys_pm_ops)
+#else
+#define ISYS_PM_OPS NULL
+#endif
+
+static void isys_remove(struct ipu_bus_device *adev)
+{
+ struct ipu_isys *isys = ipu_bus_get_drvdata(adev);
+ struct ipu_device *isp = adev->isp;
+ struct isys_fw_msgs *fwmsg, *safe;
+
+ dev_info(&adev->dev, "removed\n");
+#ifdef CONFIG_DEBUG_FS
+ if (isp->ipu_dir)
+ debugfs_remove_recursive(isys->debugfsdir);
+#endif
+
+ list_for_each_entry_safe(fwmsg, safe, &isys->framebuflist, head) {
+ dma_free_attrs(&adev->dev, sizeof(struct isys_fw_msgs),
+ fwmsg, fwmsg->dma_addr,
+ 0);
+ }
+
+ list_for_each_entry_safe(fwmsg, safe, &isys->framebuflist_fw, head) {
+ dma_free_attrs(&adev->dev, sizeof(struct isys_fw_msgs),
+ fwmsg, fwmsg->dma_addr,
+ 0
+ );
+ }
+
+ isys_iwake_watermark_cleanup(isys);
+
+ ipu_trace_uninit(&adev->dev);
+ isys_notifier_cleanup(isys);
+ isys_unregister_devices(isys);
+
+ cpu_latency_qos_remove_request(&isys->pm_qos);
+
+ if (!isp->secure_mode) {
+ ipu_cpd_free_pkg_dir(adev, isys->pkg_dir,
+ isys->pkg_dir_dma_addr,
+ isys->pkg_dir_size);
+ ipu_buttress_unmap_fw_image(adev, &isys->fw_sgt);
+ release_firmware(isys->fw);
+ }
+
+ mutex_destroy(&isys->stream_mutex);
+ mutex_destroy(&isys->mutex);
+
+ if (isys->short_packet_source == IPU_ISYS_SHORT_PACKET_FROM_TUNIT) {
+ u32 trace_size = IPU_ISYS_SHORT_PACKET_TRACE_BUFFER_SIZE;
+
+ dma_free_coherent(&adev->dev, trace_size,
+ isys->short_packet_trace_buffer,
+ isys->short_packet_trace_buffer_dma_addr);
+ }
+}
+
+#ifdef CONFIG_DEBUG_FS
+static int ipu_isys_icache_prefetch_get(void *data, u64 *val)
+{
+ struct ipu_isys *isys = data;
+
+ *val = isys->icache_prefetch;
+ return 0;
+}
+
+static int ipu_isys_icache_prefetch_set(void *data, u64 val)
+{
+ struct ipu_isys *isys = data;
+
+ if (val != !!val)
+ return -EINVAL;
+
+ isys->icache_prefetch = val;
+
+ return 0;
+}
+
+static int isys_iwake_control_get(void *data, u64 *val)
+{
+ struct ipu_isys *isys = data;
+ struct isys_iwake_watermark *iwake_watermark = isys->iwake_watermark;
+
+ mutex_lock(&iwake_watermark->mutex);
+ *val = isys->iwake_watermark->force_iwake_disable;
+ mutex_unlock(&iwake_watermark->mutex);
+ return 0;
+}
+
+static int isys_iwake_control_set(void *data, u64 val)
+{
+ struct ipu_isys *isys = data;
+ struct isys_iwake_watermark *iwake_watermark;
+
+ if (val != !!val)
+ return -EINVAL;
+ /* If stream is open, refuse to set iwake */
+ if (isys->stream_opened)
+ return -EBUSY;
+
+ iwake_watermark = isys->iwake_watermark;
+ mutex_lock(&iwake_watermark->mutex);
+ isys->iwake_watermark->force_iwake_disable = !!val;
+ mutex_unlock(&iwake_watermark->mutex);
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(isys_icache_prefetch_fops,
+ ipu_isys_icache_prefetch_get,
+ ipu_isys_icache_prefetch_set, "%llu\n");
+
+DEFINE_SIMPLE_ATTRIBUTE(isys_iwake_control_fops,
+ isys_iwake_control_get,
+ isys_iwake_control_set, "%llu\n");
+
+static int ipu_isys_init_debugfs(struct ipu_isys *isys)
+{
+ struct dentry *file;
+ struct dentry *dir;
+#ifdef IPU_ISYS_GPC
+ int ret;
+#endif
+
+ dir = debugfs_create_dir("isys", isys->adev->isp->ipu_dir);
+ if (IS_ERR(dir))
+ return -ENOMEM;
+
+ file = debugfs_create_file("icache_prefetch", 0600,
+ dir, isys, &isys_icache_prefetch_fops);
+ if (IS_ERR(file))
+ goto err;
+
+ file = debugfs_create_file("iwake_disable", 0600,
+ dir, isys, &isys_iwake_control_fops);
+ if (IS_ERR(file))
+ goto err;
+
+ isys->debugfsdir = dir;
+
+#ifdef IPU_ISYS_GPC
+ ret = ipu_isys_gpc_init_debugfs(isys);
+ if (ret)
+ return ret;
+#endif
+
+ return 0;
+err:
+ debugfs_remove_recursive(dir);
+ return -ENOMEM;
+}
+#endif
+
+static int alloc_fw_msg_bufs(struct ipu_isys *isys, int amount)
+{
+ dma_addr_t dma_addr;
+ struct isys_fw_msgs *addr;
+ unsigned int i;
+ unsigned long flags;
+
+ for (i = 0; i < amount; i++) {
+ addr = dma_alloc_attrs(&isys->adev->dev,
+ sizeof(struct isys_fw_msgs),
+ &dma_addr, GFP_KERNEL,
+ 0);
+ if (!addr)
+ break;
+ addr->dma_addr = dma_addr;
+
+ spin_lock_irqsave(&isys->listlock, flags);
+ list_add(&addr->head, &isys->framebuflist);
+ spin_unlock_irqrestore(&isys->listlock, flags);
+ }
+ if (i == amount)
+ return 0;
+ spin_lock_irqsave(&isys->listlock, flags);
+ while (!list_empty(&isys->framebuflist)) {
+ addr = list_first_entry(&isys->framebuflist,
+ struct isys_fw_msgs, head);
+ list_del(&addr->head);
+ spin_unlock_irqrestore(&isys->listlock, flags);
+ dma_free_attrs(&isys->adev->dev,
+ sizeof(struct isys_fw_msgs),
+ addr, addr->dma_addr,
+ 0);
+ spin_lock_irqsave(&isys->listlock, flags);
+ }
+ spin_unlock_irqrestore(&isys->listlock, flags);
+ return -ENOMEM;
+}
+
+struct isys_fw_msgs *ipu_get_fw_msg_buf(struct ipu_isys_pipeline *ip)
+{
+ struct ipu_isys_video *pipe_av =
+ container_of(ip, struct ipu_isys_video, ip);
+ struct ipu_isys *isys;
+ struct isys_fw_msgs *msg;
+ unsigned long flags;
+
+ isys = pipe_av->isys;
+
+ spin_lock_irqsave(&isys->listlock, flags);
+ if (list_empty(&isys->framebuflist)) {
+ spin_unlock_irqrestore(&isys->listlock, flags);
+ dev_dbg(&isys->adev->dev, "Frame list empty - Allocate more");
+
+ alloc_fw_msg_bufs(isys, 5);
+
+ spin_lock_irqsave(&isys->listlock, flags);
+ if (list_empty(&isys->framebuflist)) {
+ spin_unlock_irqrestore(&isys->listlock, flags);
+ dev_err(&isys->adev->dev, "Frame list empty");
+ return NULL;
+ }
+ }
+ msg = list_last_entry(&isys->framebuflist, struct isys_fw_msgs, head);
+ list_move(&msg->head, &isys->framebuflist_fw);
+ spin_unlock_irqrestore(&isys->listlock, flags);
+ memset(&msg->fw_msg, 0, sizeof(msg->fw_msg));
+
+ return msg;
+}
+
+void ipu_cleanup_fw_msg_bufs(struct ipu_isys *isys)
+{
+ struct isys_fw_msgs *fwmsg, *fwmsg0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&isys->listlock, flags);
+ list_for_each_entry_safe(fwmsg, fwmsg0, &isys->framebuflist_fw, head)
+ list_move(&fwmsg->head, &isys->framebuflist);
+ spin_unlock_irqrestore(&isys->listlock, flags);
+}
+
+void ipu_put_fw_mgs_buf(struct ipu_isys *isys, u64 data)
+{
+ struct isys_fw_msgs *msg;
+ unsigned long flags;
+ u64 *ptr = (u64 *)(unsigned long)data;
+
+ if (!ptr)
+ return;
+
+ spin_lock_irqsave(&isys->listlock, flags);
+ msg = container_of(ptr, struct isys_fw_msgs, fw_msg.dummy);
+ list_move(&msg->head, &isys->framebuflist);
+ spin_unlock_irqrestore(&isys->listlock, flags);
+}
+
+static int isys_probe(struct ipu_bus_device *adev)
+{
+ struct ipu_isys *isys;
+ struct ipu_device *isp = adev->isp;
+ const struct firmware *fw;
+ int rval = 0;
+
+ isys = devm_kzalloc(&adev->dev, sizeof(*isys), GFP_KERNEL);
+ if (!isys)
+ return -ENOMEM;
+
+ rval = ipu_mmu_hw_init(adev->mmu);
+ if (rval)
+ return rval;
+
+ /* By default, short packet is captured from T-Unit. */
+ isys->short_packet_source = IPU_ISYS_SHORT_PACKET_FROM_RECEIVER;
+ isys->adev = adev;
+ isys->pdata = adev->pdata;
+
+ /* initial streamID for different sensor types */
+ if (ipu_ver == IPU_VER_6 || ipu_ver == IPU_VER_6EP) {
+ isys->sensor_info.vc1_data_start =
+ IPU6_FW_ISYS_VC1_SENSOR_DATA_START;
+ isys->sensor_info.vc1_data_end =
+ IPU6_FW_ISYS_VC1_SENSOR_DATA_END;
+ isys->sensor_info.vc0_data_start =
+ IPU6_FW_ISYS_VC0_SENSOR_DATA_START;
+ isys->sensor_info.vc0_data_end =
+ IPU6_FW_ISYS_VC0_SENSOR_DATA_END;
+ isys->sensor_info.vc1_pdaf_start =
+ IPU6_FW_ISYS_VC1_SENSOR_PDAF_START;
+ isys->sensor_info.vc1_pdaf_end =
+ IPU6_FW_ISYS_VC1_SENSOR_PDAF_END;
+ isys->sensor_info.sensor_metadata =
+ IPU6_FW_ISYS_SENSOR_METADATA;
+
+ isys->sensor_types[IPU_FW_ISYS_VC1_SENSOR_DATA] =
+ IPU6_FW_ISYS_VC1_SENSOR_DATA_START;
+ isys->sensor_types[IPU_FW_ISYS_VC1_SENSOR_PDAF] =
+ IPU6_FW_ISYS_VC1_SENSOR_PDAF_START;
+ isys->sensor_types[IPU_FW_ISYS_VC0_SENSOR_DATA] =
+ IPU6_FW_ISYS_VC0_SENSOR_DATA_START;
+ } else if (ipu_ver == IPU_VER_6SE) {
+ isys->sensor_info.vc1_data_start =
+ IPU6SE_FW_ISYS_VC1_SENSOR_DATA_START;
+ isys->sensor_info.vc1_data_end =
+ IPU6SE_FW_ISYS_VC1_SENSOR_DATA_END;
+ isys->sensor_info.vc0_data_start =
+ IPU6SE_FW_ISYS_VC0_SENSOR_DATA_START;
+ isys->sensor_info.vc0_data_end =
+ IPU6SE_FW_ISYS_VC0_SENSOR_DATA_END;
+ isys->sensor_info.vc1_pdaf_start =
+ IPU6SE_FW_ISYS_VC1_SENSOR_PDAF_START;
+ isys->sensor_info.vc1_pdaf_end =
+ IPU6SE_FW_ISYS_VC1_SENSOR_PDAF_END;
+ isys->sensor_info.sensor_metadata =
+ IPU6SE_FW_ISYS_SENSOR_METADATA;
+
+ isys->sensor_types[IPU_FW_ISYS_VC1_SENSOR_DATA] =
+ IPU6SE_FW_ISYS_VC1_SENSOR_DATA_START;
+ isys->sensor_types[IPU_FW_ISYS_VC1_SENSOR_PDAF] =
+ IPU6SE_FW_ISYS_VC1_SENSOR_PDAF_START;
+ isys->sensor_types[IPU_FW_ISYS_VC0_SENSOR_DATA] =
+ IPU6SE_FW_ISYS_VC0_SENSOR_DATA_START;
+ }
+
+ INIT_LIST_HEAD(&isys->requests);
+
+ spin_lock_init(&isys->lock);
+ spin_lock_init(&isys->power_lock);
+ isys->power = 0;
+
+ mutex_init(&isys->mutex);
+ mutex_init(&isys->stream_mutex);
+ mutex_init(&isys->lib_mutex);
+
+ spin_lock_init(&isys->listlock);
+ INIT_LIST_HEAD(&isys->framebuflist);
+ INIT_LIST_HEAD(&isys->framebuflist_fw);
+
+ dev_dbg(&adev->dev, "isys probe %p %p\n", adev, &adev->dev);
+ ipu_bus_set_drvdata(adev, isys);
+
+ isys->line_align = IPU_ISYS_2600_MEM_LINE_ALIGN;
+ isys->icache_prefetch = 0;
+
+#ifndef CONFIG_PM
+ isys_setup_hw(isys);
+#endif
+
+ if (!isp->secure_mode) {
+ fw = isp->cpd_fw;
+ rval = ipu_buttress_map_fw_image(adev, fw, &isys->fw_sgt);
+ if (rval)
+ goto release_firmware;
+
+ isys->pkg_dir =
+ ipu_cpd_create_pkg_dir(adev, isp->cpd_fw->data,
+ sg_dma_address(isys->fw_sgt.sgl),
+ &isys->pkg_dir_dma_addr,
+ &isys->pkg_dir_size);
+ if (!isys->pkg_dir) {
+ rval = -ENOMEM;
+ goto remove_shared_buffer;
+ }
+ }
+
+#ifdef CONFIG_DEBUG_FS
+ /* Debug fs failure is not fatal. */
+ ipu_isys_init_debugfs(isys);
+#endif
+
+ ipu_trace_init(adev->isp, isys->pdata->base, &adev->dev,
+ isys_trace_blocks);
+
+ cpu_latency_qos_add_request(&isys->pm_qos, PM_QOS_DEFAULT_VALUE);
+ alloc_fw_msg_bufs(isys, 20);
+
+ rval = isys_register_devices(isys);
+ if (rval)
+ goto out_remove_pkg_dir_shared_buffer;
+ rval = isys_iwake_watermark_init(isys);
+ if (rval)
+ goto out_unregister_devices;
+
+ ipu_mmu_hw_cleanup(adev->mmu);
+
+ return 0;
+
+out_unregister_devices:
+ isys_iwake_watermark_cleanup(isys);
+ isys_unregister_devices(isys);
+out_remove_pkg_dir_shared_buffer:
+ if (!isp->secure_mode)
+ ipu_cpd_free_pkg_dir(adev, isys->pkg_dir,
+ isys->pkg_dir_dma_addr,
+ isys->pkg_dir_size);
+remove_shared_buffer:
+ if (!isp->secure_mode)
+ ipu_buttress_unmap_fw_image(adev, &isys->fw_sgt);
+release_firmware:
+ if (!isp->secure_mode)
+ release_firmware(isys->fw);
+ ipu_trace_uninit(&adev->dev);
+
+ mutex_destroy(&isys->mutex);
+ mutex_destroy(&isys->stream_mutex);
+
+ if (isys->short_packet_source == IPU_ISYS_SHORT_PACKET_FROM_TUNIT)
+ mutex_destroy(&isys->short_packet_tracing_mutex);
+
+ ipu_mmu_hw_cleanup(adev->mmu);
+
+ return rval;
+}
+
+struct fwmsg {
+ int type;
+ char *msg;
+ bool valid_ts;
+};
+
+static const struct fwmsg fw_msg[] = {
+ {IPU_FW_ISYS_RESP_TYPE_STREAM_OPEN_DONE, "STREAM_OPEN_DONE", 0},
+ {IPU_FW_ISYS_RESP_TYPE_STREAM_CLOSE_ACK, "STREAM_CLOSE_ACK", 0},
+ {IPU_FW_ISYS_RESP_TYPE_STREAM_START_ACK, "STREAM_START_ACK", 0},
+ {IPU_FW_ISYS_RESP_TYPE_STREAM_START_AND_CAPTURE_ACK,
+ "STREAM_START_AND_CAPTURE_ACK", 0},
+ {IPU_FW_ISYS_RESP_TYPE_STREAM_STOP_ACK, "STREAM_STOP_ACK", 0},
+ {IPU_FW_ISYS_RESP_TYPE_STREAM_FLUSH_ACK, "STREAM_FLUSH_ACK", 0},
+ {IPU_FW_ISYS_RESP_TYPE_PIN_DATA_READY, "PIN_DATA_READY", 1},
+ {IPU_FW_ISYS_RESP_TYPE_STREAM_CAPTURE_ACK, "STREAM_CAPTURE_ACK", 0},
+ {IPU_FW_ISYS_RESP_TYPE_STREAM_START_AND_CAPTURE_DONE,
+ "STREAM_START_AND_CAPTURE_DONE", 1},
+ {IPU_FW_ISYS_RESP_TYPE_STREAM_CAPTURE_DONE, "STREAM_CAPTURE_DONE", 1},
+ {IPU_FW_ISYS_RESP_TYPE_FRAME_SOF, "FRAME_SOF", 1},
+ {IPU_FW_ISYS_RESP_TYPE_FRAME_EOF, "FRAME_EOF", 1},
+ {IPU_FW_ISYS_RESP_TYPE_STATS_DATA_READY, "STATS_READY", 1},
+ {-1, "UNKNOWN MESSAGE", 0},
+};
+
+static int resp_type_to_index(int type)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(fw_msg); i++)
+ if (fw_msg[i].type == type)
+ return i;
+
+ return i - 1;
+}
+
+int isys_isr_one(struct ipu_bus_device *adev)
+{
+ struct ipu_isys *isys = ipu_bus_get_drvdata(adev);
+ struct ipu_fw_isys_resp_info_abi resp_data;
+ struct ipu_fw_isys_resp_info_abi *resp;
+ struct ipu_isys_pipeline *pipe;
+ u64 ts;
+ unsigned int i;
+
+ if (!isys->fwcom)
+ return 0;
+
+ resp = ipu_fw_isys_get_resp(isys->fwcom, IPU_BASE_MSG_RECV_QUEUES,
+ &resp_data);
+ if (!resp)
+ return 1;
+
+ ts = (u64)resp->timestamp[1] << 32 | resp->timestamp[0];
+
+ if (resp->error_info.error == IPU_FW_ISYS_ERROR_STREAM_IN_SUSPENSION)
+ /* Suspension is kind of special case: not enough buffers */
+ dev_dbg(&adev->dev,
+ "hostlib: error resp %02d %s, stream %u, error SUSPENSION, details %d, timestamp 0x%16.16llx, pin %d\n",
+ resp->type,
+ fw_msg[resp_type_to_index(resp->type)].msg,
+ resp->stream_handle,
+ resp->error_info.error_details,
+ fw_msg[resp_type_to_index(resp->type)].valid_ts ?
+ ts : 0, resp->pin_id);
+ else if (resp->error_info.error)
+ dev_dbg(&adev->dev,
+ "hostlib: error resp %02d %s, stream %u, error %d, details %d, timestamp 0x%16.16llx, pin %d\n",
+ resp->type,
+ fw_msg[resp_type_to_index(resp->type)].msg,
+ resp->stream_handle,
+ resp->error_info.error, resp->error_info.error_details,
+ fw_msg[resp_type_to_index(resp->type)].valid_ts ?
+ ts : 0, resp->pin_id);
+ else
+ dev_dbg(&adev->dev,
+ "hostlib: resp %02d %s, stream %u, timestamp 0x%16.16llx, pin %d\n",
+ resp->type,
+ fw_msg[resp_type_to_index(resp->type)].msg,
+ resp->stream_handle,
+ fw_msg[resp_type_to_index(resp->type)].valid_ts ?
+ ts : 0, resp->pin_id);
+
+ if (resp->stream_handle >= IPU_ISYS_MAX_STREAMS) {
+ dev_err(&adev->dev, "bad stream handle %u\n",
+ resp->stream_handle);
+ goto leave;
+ }
+
+ pipe = isys->pipes[resp->stream_handle];
+ if (!pipe) {
+ dev_err(&adev->dev, "no pipeline for stream %u\n",
+ resp->stream_handle);
+ goto leave;
+ }
+ pipe->error = resp->error_info.error;
+
+ switch (resp->type) {
+ case IPU_FW_ISYS_RESP_TYPE_STREAM_OPEN_DONE:
+ ipu_put_fw_mgs_buf(ipu_bus_get_drvdata(adev), resp->buf_id);
+ complete(&pipe->stream_open_completion);
+ break;
+ case IPU_FW_ISYS_RESP_TYPE_STREAM_CLOSE_ACK:
+ complete(&pipe->stream_close_completion);
+ break;
+ case IPU_FW_ISYS_RESP_TYPE_STREAM_START_ACK:
+ complete(&pipe->stream_start_completion);
+ break;
+ case IPU_FW_ISYS_RESP_TYPE_STREAM_START_AND_CAPTURE_ACK:
+ ipu_put_fw_mgs_buf(ipu_bus_get_drvdata(adev), resp->buf_id);
+ complete(&pipe->stream_start_completion);
+ break;
+ case IPU_FW_ISYS_RESP_TYPE_STREAM_STOP_ACK:
+ complete(&pipe->stream_stop_completion);
+ break;
+ case IPU_FW_ISYS_RESP_TYPE_STREAM_FLUSH_ACK:
+ complete(&pipe->stream_stop_completion);
+ break;
+ case IPU_FW_ISYS_RESP_TYPE_PIN_DATA_READY:
+ if (resp->pin_id < IPU_ISYS_OUTPUT_PINS &&
+ pipe->output_pins[resp->pin_id].pin_ready)
+ pipe->output_pins[resp->pin_id].pin_ready(pipe, resp);
+ else
+ dev_err(&adev->dev,
+ "%d:No data pin ready handler for pin id %d\n",
+ resp->stream_handle, resp->pin_id);
+ if (pipe->csi2)
+ ipu_isys_csi2_error(pipe->csi2);
+
+ break;
+ case IPU_FW_ISYS_RESP_TYPE_STREAM_CAPTURE_ACK:
+ break;
+ case IPU_FW_ISYS_RESP_TYPE_STREAM_START_AND_CAPTURE_DONE:
+ case IPU_FW_ISYS_RESP_TYPE_STREAM_CAPTURE_DONE:
+ if (pipe->interlaced) {
+ struct ipu_isys_buffer *ib, *ib_safe;
+ struct list_head list;
+ unsigned long flags;
+ unsigned int *ts = resp->timestamp;
+
+ if (pipe->isys->short_packet_source ==
+ IPU_ISYS_SHORT_PACKET_FROM_TUNIT)
+ pipe->cur_field =
+ ipu_isys_csi2_get_current_field(pipe, ts);
+
+ /*
+ * Move the pending buffers to a local temp list.
+ * Then we do not need to handle the lock during
+ * the loop.
+ */
+ spin_lock_irqsave(&pipe->short_packet_queue_lock,
+ flags);
+ list_cut_position(&list,
+ &pipe->pending_interlaced_bufs,
+ pipe->pending_interlaced_bufs.prev);
+ spin_unlock_irqrestore(&pipe->short_packet_queue_lock,
+ flags);
+
+ list_for_each_entry_safe(ib, ib_safe, &list, head) {
+ struct vb2_buffer *vb;
+
+ vb = ipu_isys_buffer_to_vb2_buffer(ib);
+ to_vb2_v4l2_buffer(vb)->field = pipe->cur_field;
+ list_del(&ib->head);
+
+ ipu_isys_queue_buf_done(ib);
+ }
+ }
+ for (i = 0; i < IPU_NUM_CAPTURE_DONE; i++)
+ if (pipe->capture_done[i])
+ pipe->capture_done[i] (pipe, resp);
+
+ break;
+ case IPU_FW_ISYS_RESP_TYPE_FRAME_SOF:
+ if (pipe->csi2)
+ ipu_isys_csi2_sof_event(pipe->csi2);
+
+ pipe->seq[pipe->seq_index].sequence =
+ atomic_read(&pipe->sequence) - 1;
+ pipe->seq[pipe->seq_index].timestamp = ts;
+ dev_dbg(&adev->dev,
+ "sof: handle %d: (index %u), timestamp 0x%16.16llx\n",
+ resp->stream_handle,
+ pipe->seq[pipe->seq_index].sequence, ts);
+ pipe->seq_index = (pipe->seq_index + 1)
+ % IPU_ISYS_MAX_PARALLEL_SOF;
+ break;
+ case IPU_FW_ISYS_RESP_TYPE_FRAME_EOF:
+ if (pipe->csi2)
+ ipu_isys_csi2_eof_event(pipe->csi2);
+
+ dev_dbg(&adev->dev,
+ "eof: handle %d: (index %u), timestamp 0x%16.16llx\n",
+ resp->stream_handle,
+ pipe->seq[pipe->seq_index].sequence, ts);
+ break;
+ case IPU_FW_ISYS_RESP_TYPE_STATS_DATA_READY:
+ break;
+ default:
+ dev_err(&adev->dev, "%d:unknown response type %u\n",
+ resp->stream_handle, resp->type);
+ break;
+ }
+
+leave:
+ ipu_fw_isys_put_resp(isys->fwcom, IPU_BASE_MSG_RECV_QUEUES);
+ return 0;
+}
+
+static struct ipu_bus_driver isys_driver = {
+ .probe = isys_probe,
+ .remove = isys_remove,
+ .isr = isys_isr,
+ .wanted = IPU_ISYS_NAME,
+ .drv = {
+ .name = IPU_ISYS_NAME,
+ .owner = THIS_MODULE,
+ .pm = ISYS_PM_OPS,
+ },
+};
+
+module_ipu_bus_driver(isys_driver);
+
+static const struct pci_device_id ipu_pci_tbl[] = {
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, IPU6_PCI_ID)},
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, IPU6SE_PCI_ID)},
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, IPU6EP_ADL_P_PCI_ID)},
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, IPU6EP_ADL_N_PCI_ID)},
+ {0,}
+};
+MODULE_DEVICE_TABLE(pci, ipu_pci_tbl);
+
+MODULE_AUTHOR("Sakari Ailus <sakari.ailus at linux.intel.com>");
+MODULE_AUTHOR("Samu Onkalo <samu.onkalo at intel.com>");
+MODULE_AUTHOR("Jouni Högander <jouni.hogander at intel.com>");
+MODULE_AUTHOR("Jouni Ukkonen <jouni.ukkonen at intel.com>");
+MODULE_AUTHOR("Jianxu Zheng <jian.xu.zheng at intel.com>");
+MODULE_AUTHOR("Tianshu Qiu <tian.shu.qiu at intel.com>");
+MODULE_AUTHOR("Renwei Wu <renwei.wu at intel.com>");
+MODULE_AUTHOR("Bingbu Cao <bingbu.cao at intel.com>");
+MODULE_AUTHOR("Yunliang Ding <yunliang.ding at intel.com>");
+MODULE_AUTHOR("Zaikuo Wang <zaikuo.wang at intel.com>");
+MODULE_AUTHOR("Leifu Zhao <leifu.zhao at intel.com>");
+MODULE_AUTHOR("Xia Wu <xia.wu at intel.com>");
+MODULE_AUTHOR("Kun Jiang <kun.jiang at intel.com>");
+MODULE_AUTHOR("Yu Xia <yu.y.xia at intel.com>");
+MODULE_AUTHOR("Jerry Hu <jerry.w.hu at intel.com>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Intel ipu input system driver");
diff --git a/drivers/media/pci/intel/ipu-isys.h b/drivers/media/pci/intel/ipu-isys.h
new file mode 100644
index 0000000000000..8b1228febdf63
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-isys.h
@@ -0,0 +1,227 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2013 - 2020 Intel Corporation */
+
+#ifndef IPU_ISYS_H
+#define IPU_ISYS_H
+
+#include <linux/pm_qos.h>
+#include <linux/spinlock.h>
+
+#include <media/v4l2-device.h>
+#include <media/media-device.h>
+
+#include <uapi/linux/ipu-isys.h>
+
+#include "ipu.h"
+#include "ipu-isys-media.h"
+#include "ipu-isys-csi2.h"
+#include "ipu-isys-csi2-be.h"
+#include "ipu-isys-video.h"
+#include "ipu-pdata.h"
+#include "ipu-fw-isys.h"
+#include "ipu-platform-isys.h"
+
+#define IPU_ISYS_2600_MEM_LINE_ALIGN 64
+
+/* for TPG */
+#define IPU_ISYS_FREQ 533000000UL
+
+/*
+ * Current message queue configuration. These must be big enough
+ * so that they never gets full. Queues are located in system memory
+ */
+#define IPU_ISYS_SIZE_RECV_QUEUE 40
+#define IPU_ISYS_SIZE_SEND_QUEUE 40
+#define IPU_ISYS_SIZE_PROXY_RECV_QUEUE 5
+#define IPU_ISYS_SIZE_PROXY_SEND_QUEUE 5
+#define IPU_ISYS_NUM_RECV_QUEUE 1
+
+/*
+ * Device close takes some time from last ack message to actual stopping
+ * of the SP processor. As long as the SP processor runs we can't proceed with
+ * clean up of resources.
+ */
+#define IPU_ISYS_OPEN_TIMEOUT_US 1000
+#define IPU_ISYS_OPEN_RETRY 1000
+#define IPU_ISYS_TURNOFF_DELAY_US 1000
+#define IPU_ISYS_TURNOFF_TIMEOUT 1000
+#define IPU_LIB_CALL_TIMEOUT_JIFFIES \
+ msecs_to_jiffies(IPU_LIB_CALL_TIMEOUT_MS)
+
+#define IPU_ISYS_CSI2_LONG_PACKET_HEADER_SIZE 32
+#define IPU_ISYS_CSI2_LONG_PACKET_FOOTER_SIZE 32
+
+#define IPU_ISYS_MIN_WIDTH 1U
+#define IPU_ISYS_MIN_HEIGHT 1U
+#define IPU_ISYS_MAX_WIDTH 16384U
+#define IPU_ISYS_MAX_HEIGHT 16384U
+
+#define NR_OF_CSI2_BE_SOC_DEV 1
+
+/* the threshold granularity is 2KB on IPU6 */
+#define IPU6_SRAM_GRANULRITY_SHIFT 11
+#define IPU6_SRAM_GRANULRITY_SIZE 2048
+/* the threshold granularity is 1KB on IPU6SE */
+#define IPU6SE_SRAM_GRANULRITY_SHIFT 10
+#define IPU6SE_SRAM_GRANULRITY_SIZE 1024
+
+struct task_struct;
+
+struct ltr_did {
+ union {
+ u32 value;
+ struct {
+ u8 val0;
+ u8 val1;
+ u8 val2;
+ u8 val3;
+ } bits;
+ } lut_ltr;
+ union {
+ u32 value;
+ struct {
+ u8 th0;
+ u8 th1;
+ u8 th2;
+ u8 th3;
+ } bits;
+ } lut_fill_time;
+};
+
+struct isys_iwake_watermark {
+ bool iwake_enabled;
+ bool force_iwake_disable;
+ u32 iwake_threshold;
+ u64 isys_pixelbuffer_datarate;
+ struct ltr_did ltrdid;
+ struct mutex mutex; /* protect whole struct */
+ struct ipu_isys *isys;
+ struct list_head video_list;
+};
+struct ipu_isys_sensor_info {
+ unsigned int vc1_data_start;
+ unsigned int vc1_data_end;
+ unsigned int vc0_data_start;
+ unsigned int vc0_data_end;
+ unsigned int vc1_pdaf_start;
+ unsigned int vc1_pdaf_end;
+ unsigned int sensor_metadata;
+};
+
+/*
+ * struct ipu_isys
+ *
+ * @media_dev: Media device
+ * @v4l2_dev: V4L2 device
+ * @adev: ISYS bus device
+ * @power: Is ISYS powered on or not?
+ * @isr_bits: Which bits does the ISR handle?
+ * @power_lock: Serialise access to power (power state in general)
+ * @csi2_rx_ctrl_cached: cached shared value between all CSI2 receivers
+ * @lock: serialise access to pipes
+ * @pipes: pipelines per stream ID
+ * @fwcom: fw communication layer private pointer
+ * or optional external library private pointer
+ * @line_align: line alignment in memory
+ * @reset_needed: Isys requires d0i0->i3 transition
+ * @video_opened: total number of opened file handles on video nodes
+ * @mutex: serialise access isys video open/release related operations
+ * @stream_mutex: serialise stream start and stop, queueing requests
+ * @lib_mutex: optional external library mutex
+ * @pdata: platform data pointer
+ * @csi2: CSI-2 receivers
+ * @csi2_be: CSI-2 back-ends
+ * @fw: ISYS firmware binary (unsecure firmware)
+ * @fw_sgt: fw scatterlist
+ * @pkg_dir: host pointer to pkg_dir
+ * @pkg_dir_dma_addr: I/O virtual address for pkg_dir
+ * @pkg_dir_size: size of pkg_dir in bytes
+ * @short_packet_source: select short packet capture mode
+ */
+struct ipu_isys {
+ struct media_device media_dev;
+ struct v4l2_device v4l2_dev;
+ struct ipu_bus_device *adev;
+
+ int power;
+ spinlock_t power_lock; /* Serialise access to power */
+ u32 isr_csi2_bits;
+ u32 csi2_rx_ctrl_cached;
+ spinlock_t lock; /* Serialise access to pipes */
+ struct ipu_isys_pipeline *pipes[IPU_ISYS_MAX_STREAMS];
+ void *fwcom;
+ unsigned int line_align;
+ bool reset_needed;
+ bool icache_prefetch;
+ bool csi2_cse_ipc_not_supported;
+ unsigned int video_opened;
+ unsigned int stream_opened;
+ struct ipu_isys_sensor_info sensor_info;
+ unsigned int sensor_types[N_IPU_FW_ISYS_SENSOR_TYPE];
+
+#ifdef CONFIG_DEBUG_FS
+ struct dentry *debugfsdir;
+#endif
+ struct mutex mutex; /* Serialise isys video open/release related */
+ struct mutex stream_mutex; /* Stream start, stop, queueing reqs */
+ struct mutex lib_mutex; /* Serialise optional external library mutex */
+
+ struct ipu_isys_pdata *pdata;
+
+ struct ipu_isys_csi2 *csi2;
+ struct ipu_isys_csi2_be csi2_be;
+ struct ipu_isys_csi2_be_soc csi2_be_soc[NR_OF_CSI2_BE_SOC_DEV];
+ const struct firmware *fw;
+ struct sg_table fw_sgt;
+
+ u64 *pkg_dir;
+ dma_addr_t pkg_dir_dma_addr;
+ unsigned int pkg_dir_size;
+
+ struct list_head requests;
+ struct pm_qos_request pm_qos;
+ unsigned int short_packet_source;
+ struct ipu_isys_csi2_monitor_message *short_packet_trace_buffer;
+ dma_addr_t short_packet_trace_buffer_dma_addr;
+ unsigned int short_packet_tracing_count;
+ struct mutex short_packet_tracing_mutex; /* For tracing count */
+ u64 tsc_timer_base;
+ u64 tunit_timer_base;
+ spinlock_t listlock; /* Protect framebuflist */
+ struct list_head framebuflist;
+ struct list_head framebuflist_fw;
+ struct v4l2_async_notifier notifier;
+ struct isys_iwake_watermark *iwake_watermark;
+
+};
+
+void update_watermark_setting(struct ipu_isys *isys);
+
+struct isys_fw_msgs {
+ union {
+ u64 dummy;
+ struct ipu_fw_isys_frame_buff_set_abi frame;
+ struct ipu_fw_isys_stream_cfg_data_abi stream;
+ } fw_msg;
+ struct list_head head;
+ dma_addr_t dma_addr;
+};
+
+#define to_frame_msg_buf(a) (&(a)->fw_msg.frame)
+#define to_stream_cfg_msg_buf(a) (&(a)->fw_msg.stream)
+#define to_dma_addr(a) ((a)->dma_addr)
+
+struct isys_fw_msgs *ipu_get_fw_msg_buf(struct ipu_isys_pipeline *ip);
+void ipu_put_fw_mgs_buf(struct ipu_isys *isys, u64 data);
+void ipu_cleanup_fw_msg_bufs(struct ipu_isys *isys);
+
+extern const struct v4l2_ioctl_ops ipu_isys_ioctl_ops;
+
+void isys_setup_hw(struct ipu_isys *isys);
+int isys_isr_one(struct ipu_bus_device *adev);
+irqreturn_t isys_isr(struct ipu_bus_device *adev);
+#ifdef IPU_ISYS_GPC
+int ipu_isys_gpc_init_debugfs(struct ipu_isys *isys);
+#endif
+
+#endif /* IPU_ISYS_H */
diff --git a/drivers/media/pci/intel/ipu-mmu.c b/drivers/media/pci/intel/ipu-mmu.c
new file mode 100644
index 0000000000000..7d38529820b14
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-mmu.c
@@ -0,0 +1,858 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2013 - 2021 Intel Corporation
+
+#include <asm/cacheflush.h>
+
+#include <linux/device.h>
+#include <linux/iova.h>
+#include <linux/module.h>
+#include <linux/sizes.h>
+
+#include "ipu.h"
+#include "ipu-platform.h"
+#include "ipu-dma.h"
+#include "ipu-mmu.h"
+#include "ipu-platform-regs.h"
+
+#define ISP_PAGE_SHIFT 12
+#define ISP_PAGE_SIZE BIT(ISP_PAGE_SHIFT)
+#define ISP_PAGE_MASK (~(ISP_PAGE_SIZE - 1))
+
+#define ISP_L1PT_SHIFT 22
+#define ISP_L1PT_MASK (~((1U << ISP_L1PT_SHIFT) - 1))
+
+#define ISP_L2PT_SHIFT 12
+#define ISP_L2PT_MASK (~(ISP_L1PT_MASK | (~(ISP_PAGE_MASK))))
+
+#define ISP_L1PT_PTES 1024
+#define ISP_L2PT_PTES 1024
+
+#define ISP_PADDR_SHIFT 12
+
+#define REG_TLB_INVALIDATE 0x0000
+
+#define REG_L1_PHYS 0x0004 /* 27-bit pfn */
+#define REG_INFO 0x0008
+
+/* The range of stream ID i in L1 cache is from 0 to 15 */
+#define MMUV2_REG_L1_STREAMID(i) (0x0c + ((i) * 4))
+
+/* The range of stream ID i in L2 cache is from 0 to 15 */
+#define MMUV2_REG_L2_STREAMID(i) (0x4c + ((i) * 4))
+
+#define TBL_PHYS_ADDR(a) ((phys_addr_t)(a) << ISP_PADDR_SHIFT)
+
+static void tlb_invalidate(struct ipu_mmu *mmu)
+{
+ unsigned int i;
+ unsigned long flags;
+
+ spin_lock_irqsave(&mmu->ready_lock, flags);
+ if (!mmu->ready) {
+ spin_unlock_irqrestore(&mmu->ready_lock, flags);
+ return;
+ }
+
+ for (i = 0; i < mmu->nr_mmus; i++) {
+ /*
+ * To avoid the HW bug induced dead lock in some of the IPU
+ * MMUs on successive invalidate calls, we need to first do a
+ * read to the page table base before writing the invalidate
+ * register. MMUs which need to implement this WA, will have
+ * the insert_read_before_invalidate flags set as true.
+ * Disregard the return value of the read.
+ */
+ if (mmu->mmu_hw[i].insert_read_before_invalidate)
+ readl(mmu->mmu_hw[i].base + REG_L1_PHYS);
+
+ writel(0xffffffff, mmu->mmu_hw[i].base +
+ REG_TLB_INVALIDATE);
+ /*
+ * The TLB invalidation is a "single cycle" (IOMMU clock cycles)
+ * When the actual MMIO write reaches the IPU TLB Invalidate
+ * register, wmb() will force the TLB invalidate out if the CPU
+ * attempts to update the IOMMU page table (or sooner).
+ */
+ wmb();
+ }
+ spin_unlock_irqrestore(&mmu->ready_lock, flags);
+}
+
+#ifdef DEBUG
+static void page_table_dump(struct ipu_mmu_info *mmu_info)
+{
+ u32 l1_idx;
+
+ dev_dbg(mmu_info->dev, "begin IOMMU page table dump\n");
+
+ for (l1_idx = 0; l1_idx < ISP_L1PT_PTES; l1_idx++) {
+ u32 l2_idx;
+ u32 iova = (phys_addr_t)l1_idx << ISP_L1PT_SHIFT;
+
+ if (mmu_info->l1_pt[l1_idx] == mmu_info->dummy_l2_pteval)
+ continue;
+ dev_dbg(mmu_info->dev,
+ "l1 entry %u; iovas 0x%8.8x-0x%8.8x, at %p\n",
+ l1_idx, iova, iova + ISP_PAGE_SIZE,
+ (void *)TBL_PHYS_ADDR(mmu_info->l1_pt[l1_idx]));
+
+ for (l2_idx = 0; l2_idx < ISP_L2PT_PTES; l2_idx++) {
+ u32 *l2_pt = mmu_info->l2_pts[l1_idx];
+ u32 iova2 = iova + (l2_idx << ISP_L2PT_SHIFT);
+
+ if (l2_pt[l2_idx] == mmu_info->dummy_page_pteval)
+ continue;
+
+ dev_dbg(mmu_info->dev,
+ "\tl2 entry %u; iova 0x%8.8x, phys %p\n",
+ l2_idx, iova2,
+ (void *)TBL_PHYS_ADDR(l2_pt[l2_idx]));
+ }
+ }
+
+ dev_dbg(mmu_info->dev, "end IOMMU page table dump\n");
+}
+#endif /* DEBUG */
+
+static dma_addr_t map_single(struct ipu_mmu_info *mmu_info, void *ptr)
+{
+ dma_addr_t dma;
+
+ dma = dma_map_single(mmu_info->dev, ptr, PAGE_SIZE, DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(mmu_info->dev, dma))
+ return 0;
+
+ return dma;
+}
+
+static int get_dummy_page(struct ipu_mmu_info *mmu_info)
+{
+ dma_addr_t dma;
+ void *pt = (void *)get_zeroed_page(GFP_ATOMIC | GFP_DMA32);
+
+ if (!pt)
+ return -ENOMEM;
+
+ dev_dbg(mmu_info->dev, "%s get_zeroed_page() == %p\n", __func__, pt);
+
+ dma = map_single(mmu_info, pt);
+ if (!dma) {
+ dev_err(mmu_info->dev, "Failed to map dummy page\n");
+ goto err_free_page;
+ }
+
+ mmu_info->dummy_page = pt;
+ mmu_info->dummy_page_pteval = dma >> ISP_PAGE_SHIFT;
+
+ return 0;
+
+err_free_page:
+ free_page((unsigned long)pt);
+ return -ENOMEM;
+}
+
+static void free_dummy_page(struct ipu_mmu_info *mmu_info)
+{
+ dma_unmap_single(mmu_info->dev,
+ TBL_PHYS_ADDR(mmu_info->dummy_page_pteval),
+ PAGE_SIZE, DMA_BIDIRECTIONAL);
+ free_page((unsigned long)mmu_info->dummy_page);
+}
+
+static int alloc_dummy_l2_pt(struct ipu_mmu_info *mmu_info)
+{
+ dma_addr_t dma;
+ u32 *pt = (u32 *)get_zeroed_page(GFP_ATOMIC | GFP_DMA32);
+ int i;
+
+ if (!pt)
+ return -ENOMEM;
+
+ dev_dbg(mmu_info->dev, "%s get_zeroed_page() == %p\n", __func__, pt);
+
+ dma = map_single(mmu_info, pt);
+ if (!dma) {
+ dev_err(mmu_info->dev, "Failed to map l2pt page\n");
+ goto err_free_page;
+ }
+
+ for (i = 0; i < ISP_L2PT_PTES; i++)
+ pt[i] = mmu_info->dummy_page_pteval;
+
+ mmu_info->dummy_l2_pt = pt;
+ mmu_info->dummy_l2_pteval = dma >> ISP_PAGE_SHIFT;
+
+ return 0;
+
+err_free_page:
+ free_page((unsigned long)pt);
+ return -ENOMEM;
+}
+
+static void free_dummy_l2_pt(struct ipu_mmu_info *mmu_info)
+{
+ dma_unmap_single(mmu_info->dev,
+ TBL_PHYS_ADDR(mmu_info->dummy_l2_pteval),
+ PAGE_SIZE, DMA_BIDIRECTIONAL);
+ free_page((unsigned long)mmu_info->dummy_l2_pt);
+}
+
+static u32 *alloc_l1_pt(struct ipu_mmu_info *mmu_info)
+{
+ dma_addr_t dma;
+ u32 *pt = (u32 *)get_zeroed_page(GFP_ATOMIC | GFP_DMA32);
+ int i;
+
+ if (!pt)
+ return NULL;
+
+ dev_dbg(mmu_info->dev, "%s get_zeroed_page() == %p\n", __func__, pt);
+
+ for (i = 0; i < ISP_L1PT_PTES; i++)
+ pt[i] = mmu_info->dummy_l2_pteval;
+
+ dma = map_single(mmu_info, pt);
+ if (!dma) {
+ dev_err(mmu_info->dev, "Failed to map l1pt page\n");
+ goto err_free_page;
+ }
+
+ mmu_info->l1_pt_dma = dma >> ISP_PADDR_SHIFT;
+ dev_dbg(mmu_info->dev, "l1 pt %p mapped at %llx\n", pt, dma);
+
+ return pt;
+
+err_free_page:
+ free_page((unsigned long)pt);
+ return NULL;
+}
+
+static u32 *alloc_l2_pt(struct ipu_mmu_info *mmu_info)
+{
+ u32 *pt = (u32 *)get_zeroed_page(GFP_ATOMIC | GFP_DMA32);
+ int i;
+
+ if (!pt)
+ return NULL;
+
+ dev_dbg(mmu_info->dev, "%s get_zeroed_page() == %p\n", __func__, pt);
+
+ for (i = 0; i < ISP_L1PT_PTES; i++)
+ pt[i] = mmu_info->dummy_page_pteval;
+
+ return pt;
+}
+
+static int l2_map(struct ipu_mmu_info *mmu_info, unsigned long iova,
+ phys_addr_t paddr, size_t size)
+{
+ u32 l1_idx = iova >> ISP_L1PT_SHIFT;
+ u32 l1_entry;
+ u32 *l2_pt, *l2_virt;
+ u32 iova_start = iova;
+ unsigned int l2_idx;
+ unsigned long flags;
+ dma_addr_t dma;
+
+ dev_dbg(mmu_info->dev,
+ "mapping l2 page table for l1 index %u (iova %8.8x)\n",
+ l1_idx, (u32)iova);
+
+ spin_lock_irqsave(&mmu_info->lock, flags);
+ l1_entry = mmu_info->l1_pt[l1_idx];
+ if (l1_entry == mmu_info->dummy_l2_pteval) {
+ l2_virt = mmu_info->l2_pts[l1_idx];
+ if (likely(!l2_virt)) {
+ l2_virt = alloc_l2_pt(mmu_info);
+ if (!l2_virt) {
+ spin_unlock_irqrestore(&mmu_info->lock, flags);
+ return -ENOMEM;
+ }
+ }
+
+ dma = map_single(mmu_info, l2_virt);
+ if (!dma) {
+ dev_err(mmu_info->dev, "Failed to map l2pt page\n");
+ free_page((unsigned long)l2_virt);
+ spin_unlock_irqrestore(&mmu_info->lock, flags);
+ return -EINVAL;
+ }
+
+ l1_entry = dma >> ISP_PADDR_SHIFT;
+
+ dev_dbg(mmu_info->dev, "page for l1_idx %u %p allocated\n",
+ l1_idx, l2_virt);
+ mmu_info->l1_pt[l1_idx] = l1_entry;
+ mmu_info->l2_pts[l1_idx] = l2_virt;
+ clflush_cache_range(&mmu_info->l1_pt[l1_idx],
+ sizeof(mmu_info->l1_pt[l1_idx]));
+ }
+
+ l2_pt = mmu_info->l2_pts[l1_idx];
+
+ dev_dbg(mmu_info->dev, "l2_pt at %p with dma 0x%x\n", l2_pt, l1_entry);
+
+ paddr = ALIGN(paddr, ISP_PAGE_SIZE);
+
+ l2_idx = (iova_start & ISP_L2PT_MASK) >> ISP_L2PT_SHIFT;
+
+ dev_dbg(mmu_info->dev, "l2_idx %u, phys 0x%8.8x\n", l2_idx,
+ l2_pt[l2_idx]);
+ if (l2_pt[l2_idx] != mmu_info->dummy_page_pteval) {
+ spin_unlock_irqrestore(&mmu_info->lock, flags);
+ return -EINVAL;
+ }
+
+ l2_pt[l2_idx] = paddr >> ISP_PADDR_SHIFT;
+
+ clflush_cache_range(&l2_pt[l2_idx], sizeof(l2_pt[l2_idx]));
+ spin_unlock_irqrestore(&mmu_info->lock, flags);
+
+ dev_dbg(mmu_info->dev, "l2 index %u mapped as 0x%8.8x\n", l2_idx,
+ l2_pt[l2_idx]);
+
+ return 0;
+}
+
+static int __ipu_mmu_map(struct ipu_mmu_info *mmu_info, unsigned long iova,
+ phys_addr_t paddr, size_t size)
+{
+ u32 iova_start = round_down(iova, ISP_PAGE_SIZE);
+ u32 iova_end = ALIGN(iova + size, ISP_PAGE_SIZE);
+
+ dev_dbg(mmu_info->dev,
+ "mapping iova 0x%8.8x--0x%8.8x, size %zu at paddr 0x%10.10llx\n",
+ iova_start, iova_end, size, paddr);
+
+ return l2_map(mmu_info, iova_start, paddr, size);
+}
+
+static size_t l2_unmap(struct ipu_mmu_info *mmu_info, unsigned long iova,
+ phys_addr_t dummy, size_t size)
+{
+ u32 l1_idx = iova >> ISP_L1PT_SHIFT;
+ u32 *l2_pt;
+ u32 iova_start = iova;
+ unsigned int l2_idx;
+ size_t unmapped = 0;
+ unsigned long flags;
+
+ dev_dbg(mmu_info->dev, "unmapping l2 page table for l1 index %u (iova 0x%8.8lx)\n",
+ l1_idx, iova);
+
+ spin_lock_irqsave(&mmu_info->lock, flags);
+ if (mmu_info->l1_pt[l1_idx] == mmu_info->dummy_l2_pteval) {
+ spin_unlock_irqrestore(&mmu_info->lock, flags);
+ dev_err(mmu_info->dev,
+ "unmap iova 0x%8.8lx l1 idx %u which was not mapped\n",
+ iova, l1_idx);
+ return 0;
+ }
+
+ for (l2_idx = (iova_start & ISP_L2PT_MASK) >> ISP_L2PT_SHIFT;
+ (iova_start & ISP_L1PT_MASK) + (l2_idx << ISP_PAGE_SHIFT)
+ < iova_start + size && l2_idx < ISP_L2PT_PTES; l2_idx++) {
+ l2_pt = mmu_info->l2_pts[l1_idx];
+ dev_dbg(mmu_info->dev,
+ "unmap l2 index %u with pteval 0x%10.10llx\n",
+ l2_idx, TBL_PHYS_ADDR(l2_pt[l2_idx]));
+ l2_pt[l2_idx] = mmu_info->dummy_page_pteval;
+
+ clflush_cache_range(&l2_pt[l2_idx], sizeof(l2_pt[l2_idx]));
+ unmapped++;
+ }
+ spin_unlock_irqrestore(&mmu_info->lock, flags);
+
+ return unmapped << ISP_PAGE_SHIFT;
+}
+
+static size_t __ipu_mmu_unmap(struct ipu_mmu_info *mmu_info,
+ unsigned long iova, size_t size)
+{
+ return l2_unmap(mmu_info, iova, 0, size);
+}
+
+static int allocate_trash_buffer(struct ipu_mmu *mmu)
+{
+ unsigned int n_pages = PAGE_ALIGN(IPU_MMUV2_TRASH_RANGE) >> PAGE_SHIFT;
+ struct iova *iova;
+ u32 iova_addr;
+ unsigned int i;
+ dma_addr_t dma;
+ int ret;
+
+ /* Allocate 8MB in iova range */
+ iova = alloc_iova(&mmu->dmap->iovad, n_pages,
+ mmu->dmap->mmu_info->aperture_end >> PAGE_SHIFT, 0);
+ if (!iova) {
+ dev_err(mmu->dev, "cannot allocate iova range for trash\n");
+ return -ENOMEM;
+ }
+
+ dma = dma_map_page(mmu->dmap->mmu_info->dev, mmu->trash_page, 0,
+ PAGE_SIZE, DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(mmu->dmap->mmu_info->dev, dma)) {
+ dev_err(mmu->dmap->mmu_info->dev, "Failed to map trash page\n");
+ ret = -ENOMEM;
+ goto out_free_iova;
+ }
+
+ mmu->pci_trash_page = dma;
+
+ /*
+ * Map the 8MB iova address range to the same physical trash page
+ * mmu->trash_page which is already reserved at the probe
+ */
+ iova_addr = iova->pfn_lo;
+ for (i = 0; i < n_pages; i++) {
+ ret = ipu_mmu_map(mmu->dmap->mmu_info, iova_addr << PAGE_SHIFT,
+ mmu->pci_trash_page, PAGE_SIZE);
+ if (ret) {
+ dev_err(mmu->dev,
+ "mapping trash buffer range failed\n");
+ goto out_unmap;
+ }
+
+ iova_addr++;
+ }
+
+ mmu->iova_trash_page = iova->pfn_lo << PAGE_SHIFT;
+ dev_dbg(mmu->dev, "iova trash buffer for MMUID: %d is %u\n",
+ mmu->mmid, (unsigned int)mmu->iova_trash_page);
+ return 0;
+
+out_unmap:
+ ipu_mmu_unmap(mmu->dmap->mmu_info, iova->pfn_lo << PAGE_SHIFT,
+ (iova->pfn_hi - iova->pfn_lo + 1) << PAGE_SHIFT);
+ dma_unmap_page(mmu->dmap->mmu_info->dev, mmu->pci_trash_page,
+ PAGE_SIZE, DMA_BIDIRECTIONAL);
+out_free_iova:
+ __free_iova(&mmu->dmap->iovad, iova);
+ return ret;
+}
+
+int ipu_mmu_hw_init(struct ipu_mmu *mmu)
+{
+ unsigned int i;
+ unsigned long flags;
+ struct ipu_mmu_info *mmu_info;
+
+ dev_dbg(mmu->dev, "mmu hw init\n");
+
+ mmu_info = mmu->dmap->mmu_info;
+
+ /* Initialise the each MMU HW block */
+ for (i = 0; i < mmu->nr_mmus; i++) {
+ struct ipu_mmu_hw *mmu_hw = &mmu->mmu_hw[i];
+ unsigned int j;
+ u16 block_addr;
+
+ /* Write page table address per MMU */
+ writel((phys_addr_t)mmu_info->l1_pt_dma,
+ mmu->mmu_hw[i].base + REG_L1_PHYS);
+
+ /* Set info bits per MMU */
+ writel(mmu->mmu_hw[i].info_bits,
+ mmu->mmu_hw[i].base + REG_INFO);
+
+ /* Configure MMU TLB stream configuration for L1 */
+ for (j = 0, block_addr = 0; j < mmu_hw->nr_l1streams;
+ block_addr += mmu->mmu_hw[i].l1_block_sz[j], j++) {
+ if (block_addr > IPU_MAX_LI_BLOCK_ADDR) {
+ dev_err(mmu->dev, "invalid L1 configuration\n");
+ return -EINVAL;
+ }
+
+ /* Write block start address for each streams */
+ writel(block_addr, mmu_hw->base +
+ mmu_hw->l1_stream_id_reg_offset + 4 * j);
+ }
+
+ /* Configure MMU TLB stream configuration for L2 */
+ for (j = 0, block_addr = 0; j < mmu_hw->nr_l2streams;
+ block_addr += mmu->mmu_hw[i].l2_block_sz[j], j++) {
+ if (block_addr > IPU_MAX_L2_BLOCK_ADDR) {
+ dev_err(mmu->dev, "invalid L2 configuration\n");
+ return -EINVAL;
+ }
+
+ writel(block_addr, mmu_hw->base +
+ mmu_hw->l2_stream_id_reg_offset + 4 * j);
+ }
+ }
+
+ if (!mmu->trash_page) {
+ int ret;
+
+ mmu->trash_page = alloc_page(GFP_KERNEL);
+ if (!mmu->trash_page) {
+ dev_err(mmu->dev, "insufficient memory for trash buffer\n");
+ return -ENOMEM;
+ }
+
+ ret = allocate_trash_buffer(mmu);
+ if (ret) {
+ __free_page(mmu->trash_page);
+ mmu->trash_page = NULL;
+ dev_err(mmu->dev, "trash buffer allocation failed\n");
+ return ret;
+ }
+ }
+
+ spin_lock_irqsave(&mmu->ready_lock, flags);
+ mmu->ready = true;
+ spin_unlock_irqrestore(&mmu->ready_lock, flags);
+
+ return 0;
+}
+EXPORT_SYMBOL(ipu_mmu_hw_init);
+
+static struct ipu_mmu_info *ipu_mmu_alloc(struct ipu_device *isp)
+{
+ struct ipu_mmu_info *mmu_info;
+ int ret;
+
+ mmu_info = kzalloc(sizeof(*mmu_info), GFP_KERNEL);
+ if (!mmu_info)
+ return NULL;
+
+ mmu_info->aperture_start = 0;
+ mmu_info->aperture_end = DMA_BIT_MASK(isp->secure_mode ?
+ IPU_MMU_ADDRESS_BITS :
+ IPU_MMU_ADDRESS_BITS_NON_SECURE);
+ mmu_info->pgsize_bitmap = SZ_4K;
+ mmu_info->dev = &isp->pdev->dev;
+
+ ret = get_dummy_page(mmu_info);
+ if (ret)
+ goto err_free_info;
+
+ ret = alloc_dummy_l2_pt(mmu_info);
+ if (ret)
+ goto err_free_dummy_page;
+
+ mmu_info->l2_pts = vzalloc(ISP_L2PT_PTES * sizeof(*mmu_info->l2_pts));
+ if (!mmu_info->l2_pts)
+ goto err_free_dummy_l2_pt;
+
+ /*
+ * We always map the L1 page table (a single page as well as
+ * the L2 page tables).
+ */
+ mmu_info->l1_pt = alloc_l1_pt(mmu_info);
+ if (!mmu_info->l1_pt)
+ goto err_free_l2_pts;
+
+ spin_lock_init(&mmu_info->lock);
+
+ dev_dbg(mmu_info->dev, "domain initialised\n");
+
+ return mmu_info;
+
+err_free_l2_pts:
+ vfree(mmu_info->l2_pts);
+err_free_dummy_l2_pt:
+ free_dummy_l2_pt(mmu_info);
+err_free_dummy_page:
+ free_dummy_page(mmu_info);
+err_free_info:
+ kfree(mmu_info);
+
+ return NULL;
+}
+
+int ipu_mmu_hw_cleanup(struct ipu_mmu *mmu)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&mmu->ready_lock, flags);
+ mmu->ready = false;
+ spin_unlock_irqrestore(&mmu->ready_lock, flags);
+
+ return 0;
+}
+EXPORT_SYMBOL(ipu_mmu_hw_cleanup);
+
+static struct ipu_dma_mapping *alloc_dma_mapping(struct ipu_device *isp)
+{
+ struct ipu_dma_mapping *dmap;
+
+ dmap = kzalloc(sizeof(*dmap), GFP_KERNEL);
+ if (!dmap)
+ return NULL;
+
+ dmap->mmu_info = ipu_mmu_alloc(isp);
+ if (!dmap->mmu_info) {
+ kfree(dmap);
+ return NULL;
+ }
+ init_iova_domain(&dmap->iovad, SZ_4K, 1);
+ dmap->mmu_info->dmap = dmap;
+
+ kref_init(&dmap->ref);
+
+ dev_dbg(&isp->pdev->dev, "alloc mapping\n");
+
+ iova_cache_get();
+
+ return dmap;
+}
+
+phys_addr_t ipu_mmu_iova_to_phys(struct ipu_mmu_info *mmu_info,
+ dma_addr_t iova)
+{
+ unsigned long flags;
+ u32 *l2_pt;
+ phys_addr_t phy_addr;
+
+ spin_lock_irqsave(&mmu_info->lock, flags);
+ l2_pt = mmu_info->l2_pts[iova >> ISP_L1PT_SHIFT];
+ phy_addr = (phys_addr_t)l2_pt[(iova & ISP_L2PT_MASK) >> ISP_L2PT_SHIFT];
+ phy_addr <<= ISP_PAGE_SHIFT;
+ spin_unlock_irqrestore(&mmu_info->lock, flags);
+
+ return phy_addr;
+}
+
+/*
+ * The following four functions are implemented based on iommu.c
+ * drivers/iommu/iommu.c:iommu_pgsize().
+ */
+static size_t ipu_mmu_pgsize(unsigned long pgsize_bitmap,
+ unsigned long addr_merge, size_t size)
+{
+ unsigned int pgsize_idx;
+ size_t pgsize;
+
+ /* Max page size that still fits into 'size' */
+ pgsize_idx = __fls(size);
+
+ /* need to consider alignment requirements ? */
+ if (likely(addr_merge)) {
+ /* Max page size allowed by address */
+ unsigned int align_pgsize_idx = __ffs(addr_merge);
+
+ pgsize_idx = min(pgsize_idx, align_pgsize_idx);
+ }
+
+ /* build a mask of acceptable page sizes */
+ pgsize = (1UL << (pgsize_idx + 1)) - 1;
+
+ /* throw away page sizes not supported by the hardware */
+ pgsize &= pgsize_bitmap;
+
+ /* make sure we're still sane */
+ WARN_ON(!pgsize);
+
+ /* pick the biggest page */
+ pgsize_idx = __fls(pgsize);
+ pgsize = 1UL << pgsize_idx;
+
+ return pgsize;
+}
+
+/* drivers/iommu/iommu.c:iommu_unmap() */
+size_t ipu_mmu_unmap(struct ipu_mmu_info *mmu_info, unsigned long iova,
+ size_t size)
+{
+ size_t unmapped_page, unmapped = 0;
+ unsigned int min_pagesz;
+
+ /* find out the minimum page size supported */
+ min_pagesz = 1 << __ffs(mmu_info->pgsize_bitmap);
+
+ /*
+ * The virtual address, as well as the size of the mapping, must be
+ * aligned (at least) to the size of the smallest page supported
+ * by the hardware
+ */
+ if (!IS_ALIGNED(iova | size, min_pagesz)) {
+ dev_err(NULL, "unaligned: iova 0x%lx size 0x%zx min_pagesz 0x%x\n",
+ iova, size, min_pagesz);
+ return -EINVAL;
+ }
+
+ /*
+ * Keep iterating until we either unmap 'size' bytes (or more)
+ * or we hit an area that isn't mapped.
+ */
+ while (unmapped < size) {
+ size_t pgsize = ipu_mmu_pgsize(mmu_info->pgsize_bitmap,
+ iova, size - unmapped);
+
+ unmapped_page = __ipu_mmu_unmap(mmu_info, iova, pgsize);
+ if (!unmapped_page)
+ break;
+
+ dev_dbg(mmu_info->dev, "unmapped: iova 0x%lx size 0x%zx\n",
+ iova, unmapped_page);
+
+ iova += unmapped_page;
+ unmapped += unmapped_page;
+ }
+
+ return unmapped;
+}
+
+/* drivers/iommu/iommu.c:iommu_map() */
+int ipu_mmu_map(struct ipu_mmu_info *mmu_info, unsigned long iova,
+ phys_addr_t paddr, size_t size)
+{
+ unsigned long orig_iova = iova;
+ unsigned int min_pagesz;
+ size_t orig_size = size;
+ int ret = 0;
+
+ if (mmu_info->pgsize_bitmap == 0UL)
+ return -ENODEV;
+
+ /* find out the minimum page size supported */
+ min_pagesz = 1 << __ffs(mmu_info->pgsize_bitmap);
+
+ /*
+ * both the virtual address and the physical one, as well as
+ * the size of the mapping, must be aligned (at least) to the
+ * size of the smallest page supported by the hardware
+ */
+ if (!IS_ALIGNED(iova | paddr | size, min_pagesz)) {
+ dev_err(mmu_info->dev,
+ "unaligned: iova 0x%lx pa %pa size 0x%zx min_pagesz 0x%x\n",
+ iova, &paddr, size, min_pagesz);
+ return -EINVAL;
+ }
+
+ dev_dbg(mmu_info->dev, "map: iova 0x%lx pa %pa size 0x%zx\n",
+ iova, &paddr, size);
+
+ while (size) {
+ size_t pgsize = ipu_mmu_pgsize(mmu_info->pgsize_bitmap,
+ iova | paddr, size);
+
+ dev_dbg(mmu_info->dev,
+ "mapping: iova 0x%lx pa %pa pgsize 0x%zx\n",
+ iova, &paddr, pgsize);
+
+ ret = __ipu_mmu_map(mmu_info, iova, paddr, pgsize);
+ if (ret)
+ break;
+
+ iova += pgsize;
+ paddr += pgsize;
+ size -= pgsize;
+ }
+
+ /* unroll mapping in case something went wrong */
+ if (ret)
+ ipu_mmu_unmap(mmu_info, orig_iova, orig_size - size);
+
+ return ret;
+}
+
+static void ipu_mmu_destroy(struct ipu_mmu *mmu)
+{
+ struct ipu_dma_mapping *dmap = mmu->dmap;
+ struct ipu_mmu_info *mmu_info = dmap->mmu_info;
+ struct iova *iova;
+ u32 l1_idx;
+
+ if (mmu->iova_trash_page) {
+ iova = find_iova(&dmap->iovad,
+ mmu->iova_trash_page >> PAGE_SHIFT);
+ if (iova) {
+ /* unmap and free the trash buffer iova */
+ ipu_mmu_unmap(mmu_info, iova->pfn_lo << PAGE_SHIFT,
+ (iova->pfn_hi - iova->pfn_lo + 1) <<
+ PAGE_SHIFT);
+ __free_iova(&dmap->iovad, iova);
+ } else {
+ dev_err(mmu->dev, "trash buffer iova not found.\n");
+ }
+
+ mmu->iova_trash_page = 0;
+ dma_unmap_page(mmu_info->dev, mmu->pci_trash_page,
+ PAGE_SIZE, DMA_BIDIRECTIONAL);
+ mmu->pci_trash_page = 0;
+ __free_page(mmu->trash_page);
+ }
+
+ for (l1_idx = 0; l1_idx < ISP_L1PT_PTES; l1_idx++) {
+ if (mmu_info->l1_pt[l1_idx] != mmu_info->dummy_l2_pteval) {
+ dma_unmap_single(mmu_info->dev,
+ TBL_PHYS_ADDR(mmu_info->l1_pt[l1_idx]),
+ PAGE_SIZE, DMA_BIDIRECTIONAL);
+ free_page((unsigned long)mmu_info->l2_pts[l1_idx]);
+ }
+ }
+
+ free_dummy_page(mmu_info);
+ dma_unmap_single(mmu_info->dev, mmu_info->l1_pt_dma << ISP_PADDR_SHIFT,
+ PAGE_SIZE, DMA_BIDIRECTIONAL);
+ free_page((unsigned long)mmu_info->dummy_l2_pt);
+ free_page((unsigned long)mmu_info->l1_pt);
+ kfree(mmu_info);
+}
+
+struct ipu_mmu *ipu_mmu_init(struct device *dev,
+ void __iomem *base, int mmid,
+ const struct ipu_hw_variants *hw)
+{
+ struct ipu_mmu *mmu;
+ struct ipu_mmu_pdata *pdata;
+ struct ipu_device *isp = pci_get_drvdata(to_pci_dev(dev));
+ unsigned int i;
+
+ if (hw->nr_mmus > IPU_MMU_MAX_DEVICES)
+ return ERR_PTR(-EINVAL);
+
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return ERR_PTR(-ENOMEM);
+
+ for (i = 0; i < hw->nr_mmus; i++) {
+ struct ipu_mmu_hw *pdata_mmu = &pdata->mmu_hw[i];
+ const struct ipu_mmu_hw *src_mmu = &hw->mmu_hw[i];
+
+ if (src_mmu->nr_l1streams > IPU_MMU_MAX_TLB_L1_STREAMS ||
+ src_mmu->nr_l2streams > IPU_MMU_MAX_TLB_L2_STREAMS)
+ return ERR_PTR(-EINVAL);
+
+ *pdata_mmu = *src_mmu;
+ pdata_mmu->base = base + src_mmu->offset;
+ }
+
+ mmu = devm_kzalloc(dev, sizeof(*mmu), GFP_KERNEL);
+ if (!mmu)
+ return ERR_PTR(-ENOMEM);
+
+ mmu->mmid = mmid;
+ mmu->mmu_hw = pdata->mmu_hw;
+ mmu->nr_mmus = hw->nr_mmus;
+ mmu->tlb_invalidate = tlb_invalidate;
+ mmu->ready = false;
+ INIT_LIST_HEAD(&mmu->vma_list);
+ spin_lock_init(&mmu->ready_lock);
+
+ mmu->dmap = alloc_dma_mapping(isp);
+ if (!mmu->dmap) {
+ dev_err(dev, "can't alloc dma mapping\n");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ return mmu;
+}
+
+void ipu_mmu_cleanup(struct ipu_mmu *mmu)
+{
+ struct ipu_dma_mapping *dmap = mmu->dmap;
+
+ ipu_mmu_destroy(mmu);
+ mmu->dmap = NULL;
+ iova_cache_put();
+ put_iova_domain(&dmap->iovad);
+ kfree(dmap);
+}
+
+MODULE_AUTHOR("Sakari Ailus <sakari.ailus at linux.intel.com>");
+MODULE_AUTHOR("Samu Onkalo <samu.onkalo at intel.com>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Intel ipu mmu driver");
diff --git a/drivers/media/pci/intel/ipu-mmu.h b/drivers/media/pci/intel/ipu-mmu.h
new file mode 100644
index 0000000000000..5f55d6b831fa1
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-mmu.h
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2013 - 2021 Intel Corporation */
+
+#ifndef IPU_MMU_H
+#define IPU_MMU_H
+
+#include <linux/dma-mapping.h>
+
+#include "ipu.h"
+#include "ipu-pdata.h"
+
+#define ISYS_MMID 1
+#define PSYS_MMID 0
+
+/*
+ * @pgtbl: virtual address of the l1 page table (one page)
+ */
+struct ipu_mmu_info {
+ struct device *dev;
+
+ u32 __iomem *l1_pt;
+ u32 l1_pt_dma;
+ u32 **l2_pts;
+
+ u32 *dummy_l2_pt;
+ u32 dummy_l2_pteval;
+ void *dummy_page;
+ u32 dummy_page_pteval;
+
+ dma_addr_t aperture_start;
+ dma_addr_t aperture_end;
+ unsigned long pgsize_bitmap;
+
+ spinlock_t lock; /* Serialize access to users */
+ struct ipu_dma_mapping *dmap;
+};
+
+/*
+ * @pgtbl: physical address of the l1 page table
+ */
+struct ipu_mmu {
+ struct list_head node;
+
+ struct ipu_mmu_hw *mmu_hw;
+ unsigned int nr_mmus;
+ int mmid;
+
+ phys_addr_t pgtbl;
+ struct device *dev;
+
+ struct ipu_dma_mapping *dmap;
+ struct list_head vma_list;
+
+ struct page *trash_page;
+ dma_addr_t pci_trash_page; /* IOVA from PCI DMA services (parent) */
+ dma_addr_t iova_trash_page; /* IOVA for IPU child nodes to use */
+
+ bool ready;
+ spinlock_t ready_lock; /* Serialize access to bool ready */
+
+ void (*tlb_invalidate)(struct ipu_mmu *mmu);
+};
+
+struct ipu_mmu *ipu_mmu_init(struct device *dev,
+ void __iomem *base, int mmid,
+ const struct ipu_hw_variants *hw);
+void ipu_mmu_cleanup(struct ipu_mmu *mmu);
+int ipu_mmu_hw_init(struct ipu_mmu *mmu);
+int ipu_mmu_hw_cleanup(struct ipu_mmu *mmu);
+int ipu_mmu_map(struct ipu_mmu_info *mmu_info, unsigned long iova,
+ phys_addr_t paddr, size_t size);
+size_t ipu_mmu_unmap(struct ipu_mmu_info *mmu_info, unsigned long iova,
+ size_t size);
+phys_addr_t ipu_mmu_iova_to_phys(struct ipu_mmu_info *mmu_info,
+ dma_addr_t iova);
+#endif
diff --git a/drivers/media/pci/intel/ipu-pdata.h b/drivers/media/pci/intel/ipu-pdata.h
new file mode 100644
index 0000000000000..a8f21f81da6df
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-pdata.h
@@ -0,0 +1,242 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2013 - 2021 Intel Corporation */
+
+#ifndef IPU_PDATA_H
+#define IPU_PDATA_H
+
+#define IPU_MMU_NAME IPU_NAME "-mmu"
+#define IPU_ISYS_CSI2_NAME IPU_NAME "-csi2"
+#define IPU_ISYS_NAME IPU_NAME "-isys"
+#define IPU_PSYS_NAME IPU_NAME "-psys"
+#define IPU_BUTTRESS_NAME IPU_NAME "-buttress"
+
+#define IPU_MMU_MAX_DEVICES 4
+#define IPU_MMU_ADDRESS_BITS 32
+/* The firmware is accessible within the first 2 GiB only in non-secure mode. */
+#define IPU_MMU_ADDRESS_BITS_NON_SECURE 31
+
+#define IPU_MMU_MAX_TLB_L1_STREAMS 32
+#define IPU_MMU_MAX_TLB_L2_STREAMS 32
+#define IPU_MAX_LI_BLOCK_ADDR 128
+#define IPU_MAX_L2_BLOCK_ADDR 64
+
+#define IPU_ISYS_MAX_CSI2_LEGACY_PORTS 4
+#define IPU_ISYS_MAX_CSI2_COMBO_PORTS 2
+
+#define IPU_MAX_FRAME_COUNTER 0xff
+
+/*
+ * To maximize the IOSF utlization, IPU need to send requests in bursts.
+ * At the DMA interface with the buttress, there are CDC FIFOs with burst
+ * collection capability. CDC FIFO burst collectors have a configurable
+ * threshold and is configured based on the outcome of performance measurements.
+ *
+ * isys has 3 ports with IOSF interface for VC0, VC1 and VC2
+ * psys has 4 ports with IOSF interface for VC0, VC1w, VC1r and VC2
+ *
+ * Threshold values are pre-defined and are arrived at after performance
+ * evaluations on a type of IPU
+ */
+#define IPU_MAX_VC_IOSF_PORTS 4
+
+/*
+ * IPU must configure correct arbitration mechanism related to the IOSF VC
+ * requests. There are two options per VC0 and VC1 - > 0 means rearbitrate on
+ * stall and 1 means stall until the request is completed.
+ */
+#define IPU_BTRS_ARB_MODE_TYPE_REARB 0
+#define IPU_BTRS_ARB_MODE_TYPE_STALL 1
+
+/* Currently chosen arbitration mechanism for VC0 */
+#define IPU_BTRS_ARB_STALL_MODE_VC0 \
+ IPU_BTRS_ARB_MODE_TYPE_REARB
+
+/* Currently chosen arbitration mechanism for VC1 */
+#define IPU_BTRS_ARB_STALL_MODE_VC1 \
+ IPU_BTRS_ARB_MODE_TYPE_REARB
+
+struct ipu_isys_subdev_pdata;
+
+/*
+ * MMU Invalidation HW bug workaround by ZLW mechanism
+ *
+ * Old IPU MMUV2 has a bug in the invalidation mechanism which might result in
+ * wrong translation or replication of the translation. This will cause data
+ * corruption. So we cannot directly use the MMU V2 invalidation registers
+ * to invalidate the MMU. Instead, whenever an invalidate is called, we need to
+ * clear the TLB by evicting all the valid translations by filling it with trash
+ * buffer (which is guaranteed not to be used by any other processes). ZLW is
+ * used to fill the L1 and L2 caches with the trash buffer translations. ZLW
+ * or Zero length write, is pre-fetch mechanism to pre-fetch the pages in
+ * advance to the L1 and L2 caches without triggering any memory operations.
+ *
+ * In MMU V2, L1 -> 16 streams and 64 blocks, maximum 16 blocks per stream
+ * One L1 block has 16 entries, hence points to 16 * 4K pages
+ * L2 -> 16 streams and 32 blocks. 2 blocks per streams
+ * One L2 block maps to 1024 L1 entries, hence points to 4MB address range
+ * 2 blocks per L2 stream means, 1 stream points to 8MB range
+ *
+ * As we need to clear the caches and 8MB being the biggest cache size, we need
+ * to have trash buffer which points to 8MB address range. As these trash
+ * buffers are not used for any memory transactions, we need only the least
+ * amount of physical memory. So we reserve 8MB IOVA address range but only
+ * one page is reserved from physical memory. Each of this 8MB IOVA address
+ * range is then mapped to the same physical memory page.
+ */
+/* One L2 entry maps 1024 L1 entries and one L1 entry per page */
+#define IPU_MMUV2_L2_RANGE (1024 * PAGE_SIZE)
+/* Max L2 blocks per stream */
+#define IPU_MMUV2_MAX_L2_BLOCKS 2
+/* Max L1 blocks per stream */
+#define IPU_MMUV2_MAX_L1_BLOCKS 16
+#define IPU_MMUV2_TRASH_RANGE (IPU_MMUV2_L2_RANGE * \
+ IPU_MMUV2_MAX_L2_BLOCKS)
+/* Entries per L1 block */
+#define MMUV2_ENTRIES_PER_L1_BLOCK 16
+#define MMUV2_TRASH_L1_BLOCK_OFFSET (MMUV2_ENTRIES_PER_L1_BLOCK * \
+ PAGE_SIZE)
+#define MMUV2_TRASH_L2_BLOCK_OFFSET IPU_MMUV2_L2_RANGE
+
+/*
+ * In some of the IPU MMUs, there is provision to configure L1 and L2 page
+ * table caches. Both these L1 and L2 caches are divided into multiple sections
+ * called streams. There is maximum 16 streams for both caches. Each of these
+ * sections are subdivided into multiple blocks. When nr_l1streams = 0 and
+ * nr_l2streams = 0, means the MMU is of type MMU_V1 and do not support
+ * L1/L2 page table caches.
+ *
+ * L1 stream per block sizes are configurable and varies per usecase.
+ * L2 has constant block sizes - 2 blocks per stream.
+ *
+ * MMU1 support pre-fetching of the pages to have less cache lookup misses. To
+ * enable the pre-fetching, MMU1 AT (Address Translator) device registers
+ * need to be configured.
+ *
+ * There are four types of memory accesses which requires ZLW configuration.
+ * ZLW(Zero Length Write) is a mechanism to enable VT-d pre-fetching on IOMMU.
+ *
+ * 1. Sequential Access or 1D mode
+ * Set ZLW_EN -> 1
+ * set ZLW_PAGE_CROSS_1D -> 1
+ * Set ZLW_N to "N" pages so that ZLW will be inserte N pages ahead where
+ * N is pre-defined and hardcoded in the platform data
+ * Set ZLW_2D -> 0
+ *
+ * 2. ZLW 2D mode
+ * Set ZLW_EN -> 1
+ * set ZLW_PAGE_CROSS_1D -> 1,
+ * Set ZLW_N -> 0
+ * Set ZLW_2D -> 1
+ *
+ * 3. ZLW Enable (no 1D or 2D mode)
+ * Set ZLW_EN -> 1
+ * set ZLW_PAGE_CROSS_1D -> 0,
+ * Set ZLW_N -> 0
+ * Set ZLW_2D -> 0
+ *
+ * 4. ZLW disable
+ * Set ZLW_EN -> 0
+ * set ZLW_PAGE_CROSS_1D -> 0,
+ * Set ZLW_N -> 0
+ * Set ZLW_2D -> 0
+ *
+ * To configure the ZLW for the above memory access, four registers are
+ * available. Hence to track these four settings, we have the following entries
+ * in the struct ipu_mmu_hw. Each of these entries are per stream and
+ * available only for the L1 streams.
+ *
+ * a. l1_zlw_en -> To track zlw enabled per stream (ZLW_EN)
+ * b. l1_zlw_1d_mode -> Track 1D mode per stream. ZLW inserted at page boundary
+ * c. l1_ins_zlw_ahead_pages -> to track how advance the ZLW need to be inserted
+ * Insert ZLW request N pages ahead address.
+ * d. l1_zlw_2d_mode -> To track 2D mode per stream (ZLW_2D)
+ *
+ *
+ * Currently L1/L2 streams, blocks, AT ZLW configurations etc. are pre-defined
+ * as per the usecase specific calculations. Any change to this pre-defined
+ * table has to happen in sync with IPU FW.
+ */
+struct ipu_mmu_hw {
+ union {
+ unsigned long offset;
+ void __iomem *base;
+ };
+ unsigned int info_bits;
+ u8 nr_l1streams;
+ /*
+ * L1 has variable blocks per stream - total of 64 blocks and maximum of
+ * 16 blocks per stream. Configurable by using the block start address
+ * per stream. Block start address is calculated from the block size
+ */
+ u8 l1_block_sz[IPU_MMU_MAX_TLB_L1_STREAMS];
+ /* Is ZLW is enabled in each stream */
+ bool l1_zlw_en[IPU_MMU_MAX_TLB_L1_STREAMS];
+ bool l1_zlw_1d_mode[IPU_MMU_MAX_TLB_L1_STREAMS];
+ u8 l1_ins_zlw_ahead_pages[IPU_MMU_MAX_TLB_L1_STREAMS];
+ bool l1_zlw_2d_mode[IPU_MMU_MAX_TLB_L1_STREAMS];
+
+ u32 l1_stream_id_reg_offset;
+ u32 l2_stream_id_reg_offset;
+
+ u8 nr_l2streams;
+ /*
+ * L2 has fixed 2 blocks per stream. Block address is calculated
+ * from the block size
+ */
+ u8 l2_block_sz[IPU_MMU_MAX_TLB_L2_STREAMS];
+ /* flag to track if WA is needed for successive invalidate HW bug */
+ bool insert_read_before_invalidate;
+};
+
+struct ipu_mmu_pdata {
+ unsigned int nr_mmus;
+ struct ipu_mmu_hw mmu_hw[IPU_MMU_MAX_DEVICES];
+ int mmid;
+};
+
+struct ipu_isys_csi2_pdata {
+ void __iomem *base;
+};
+
+#define IPU_EV_AUTO 0xff
+
+struct ipu_isys_internal_csi2_pdata {
+ unsigned int nports;
+ unsigned int *offsets;
+};
+
+/*
+ * One place to handle all the IPU HW variations
+ */
+struct ipu_hw_variants {
+ unsigned long offset;
+ unsigned int nr_mmus;
+ struct ipu_mmu_hw mmu_hw[IPU_MMU_MAX_DEVICES];
+ u8 cdc_fifos;
+ u8 cdc_fifo_threshold[IPU_MAX_VC_IOSF_PORTS];
+ u32 dmem_offset;
+ u32 spc_offset; /* SPC offset from psys base */
+};
+
+struct ipu_isys_internal_pdata {
+ struct ipu_isys_internal_csi2_pdata csi2;
+ struct ipu_hw_variants hw_variant;
+ u32 num_parallel_streams;
+ u32 isys_dma_overshoot;
+};
+
+struct ipu_isys_pdata {
+ void __iomem *base;
+ const struct ipu_isys_internal_pdata *ipdata;
+};
+
+struct ipu_psys_internal_pdata {
+ struct ipu_hw_variants hw_variant;
+};
+
+struct ipu_psys_pdata {
+ void __iomem *base;
+ const struct ipu_psys_internal_pdata *ipdata;
+};
+
+#endif
diff --git a/drivers/media/pci/intel/ipu-psys-compat32.c b/drivers/media/pci/intel/ipu-psys-compat32.c
new file mode 100644
index 0000000000000..763ebc2c1a9f9
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-psys-compat32.c
@@ -0,0 +1,225 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2013 - 2020 Intel Corporation
+
+#include <linux/compat.h>
+#include <linux/errno.h>
+#include <linux/uaccess.h>
+
+#include <uapi/linux/ipu-psys.h>
+
+#include "ipu-psys.h"
+
+static long native_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ long ret = -ENOTTY;
+
+ if (file->f_op->unlocked_ioctl)
+ ret = file->f_op->unlocked_ioctl(file, cmd, arg);
+
+ return ret;
+}
+
+struct ipu_psys_buffer32 {
+ u64 len;
+ union {
+ int fd;
+ compat_uptr_t userptr;
+ u64 reserved;
+ } base;
+ u32 data_offset;
+ u32 bytes_used;
+ u32 flags;
+ u32 reserved[2];
+} __packed;
+
+struct ipu_psys_command32 {
+ u64 issue_id;
+ u64 user_token;
+ u32 priority;
+ compat_uptr_t pg_manifest;
+ compat_uptr_t buffers;
+ int pg;
+ u32 pg_manifest_size;
+ u32 bufcount;
+ u32 min_psys_freq;
+ u32 frame_counter;
+ u32 reserved[2];
+} __packed;
+
+struct ipu_psys_manifest32 {
+ u32 index;
+ u32 size;
+ compat_uptr_t manifest;
+ u32 reserved[5];
+} __packed;
+
+static int
+get_ipu_psys_command32(struct ipu_psys_command *kp,
+ struct ipu_psys_command32 __user *up)
+{
+ compat_uptr_t pgm, bufs;
+ bool access_ok;
+
+ access_ok = access_ok(up, sizeof(struct ipu_psys_command32));
+ if (!access_ok || get_user(kp->issue_id, &up->issue_id) ||
+ get_user(kp->user_token, &up->user_token) ||
+ get_user(kp->priority, &up->priority) ||
+ get_user(pgm, &up->pg_manifest) ||
+ get_user(bufs, &up->buffers) ||
+ get_user(kp->pg, &up->pg) ||
+ get_user(kp->pg_manifest_size, &up->pg_manifest_size) ||
+ get_user(kp->bufcount, &up->bufcount) ||
+ get_user(kp->min_psys_freq, &up->min_psys_freq) ||
+ get_user(kp->frame_counter, &up->frame_counter)
+ )
+ return -EFAULT;
+
+ kp->pg_manifest = compat_ptr(pgm);
+ kp->buffers = compat_ptr(bufs);
+
+ return 0;
+}
+
+static int
+get_ipu_psys_buffer32(struct ipu_psys_buffer *kp,
+ struct ipu_psys_buffer32 __user *up)
+{
+ compat_uptr_t ptr;
+ bool access_ok;
+
+ access_ok = access_ok(up, sizeof(struct ipu_psys_buffer32));
+ if (!access_ok || get_user(kp->len, &up->len) ||
+ get_user(ptr, &up->base.userptr) ||
+ get_user(kp->data_offset, &up->data_offset) ||
+ get_user(kp->bytes_used, &up->bytes_used) ||
+ get_user(kp->flags, &up->flags))
+ return -EFAULT;
+
+ kp->base.userptr = compat_ptr(ptr);
+
+ return 0;
+}
+
+static int
+put_ipu_psys_buffer32(struct ipu_psys_buffer *kp,
+ struct ipu_psys_buffer32 __user *up)
+{
+ bool access_ok;
+
+ access_ok = access_ok(up, sizeof(struct ipu_psys_buffer32));
+ if (!access_ok || put_user(kp->len, &up->len) ||
+ put_user(kp->base.fd, &up->base.fd) ||
+ put_user(kp->data_offset, &up->data_offset) ||
+ put_user(kp->bytes_used, &up->bytes_used) ||
+ put_user(kp->flags, &up->flags))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int
+get_ipu_psys_manifest32(struct ipu_psys_manifest *kp,
+ struct ipu_psys_manifest32 __user *up)
+{
+ compat_uptr_t ptr;
+ bool access_ok;
+
+ access_ok = access_ok(up, sizeof(struct ipu_psys_manifest32));
+ if (!access_ok || get_user(kp->index, &up->index) ||
+ get_user(kp->size, &up->size) || get_user(ptr, &up->manifest))
+ return -EFAULT;
+
+ kp->manifest = compat_ptr(ptr);
+
+ return 0;
+}
+
+static int
+put_ipu_psys_manifest32(struct ipu_psys_manifest *kp,
+ struct ipu_psys_manifest32 __user *up)
+{
+ compat_uptr_t ptr = (u32)((unsigned long)kp->manifest);
+ bool access_ok;
+
+ access_ok = access_ok(up, sizeof(struct ipu_psys_manifest32));
+ if (!access_ok || put_user(kp->index, &up->index) ||
+ put_user(kp->size, &up->size) || put_user(ptr, &up->manifest))
+ return -EFAULT;
+
+ return 0;
+}
+
+#define IPU_IOC_GETBUF32 _IOWR('A', 4, struct ipu_psys_buffer32)
+#define IPU_IOC_PUTBUF32 _IOWR('A', 5, struct ipu_psys_buffer32)
+#define IPU_IOC_QCMD32 _IOWR('A', 6, struct ipu_psys_command32)
+#define IPU_IOC_CMD_CANCEL32 _IOWR('A', 8, struct ipu_psys_command32)
+#define IPU_IOC_GET_MANIFEST32 _IOWR('A', 9, struct ipu_psys_manifest32)
+
+long ipu_psys_compat_ioctl32(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ union {
+ struct ipu_psys_buffer buf;
+ struct ipu_psys_command cmd;
+ struct ipu_psys_event ev;
+ struct ipu_psys_manifest m;
+ } karg;
+ int compatible_arg = 1;
+ int err = 0;
+ void __user *up = compat_ptr(arg);
+
+ switch (cmd) {
+ case IPU_IOC_GETBUF32:
+ cmd = IPU_IOC_GETBUF;
+ break;
+ case IPU_IOC_PUTBUF32:
+ cmd = IPU_IOC_PUTBUF;
+ break;
+ case IPU_IOC_QCMD32:
+ cmd = IPU_IOC_QCMD;
+ break;
+ case IPU_IOC_GET_MANIFEST32:
+ cmd = IPU_IOC_GET_MANIFEST;
+ break;
+ }
+
+ switch (cmd) {
+ case IPU_IOC_GETBUF:
+ case IPU_IOC_PUTBUF:
+ err = get_ipu_psys_buffer32(&karg.buf, up);
+ compatible_arg = 0;
+ break;
+ case IPU_IOC_QCMD:
+ err = get_ipu_psys_command32(&karg.cmd, up);
+ compatible_arg = 0;
+ break;
+ case IPU_IOC_GET_MANIFEST:
+ err = get_ipu_psys_manifest32(&karg.m, up);
+ compatible_arg = 0;
+ break;
+ }
+ if (err)
+ return err;
+
+ if (compatible_arg) {
+ err = native_ioctl(file, cmd, (unsigned long)up);
+ } else {
+ mm_segment_t old_fs = force_uaccess_begin();
+
+ err = native_ioctl(file, cmd, (unsigned long)&karg);
+ force_uaccess_end(old_fs);
+ }
+
+ if (err)
+ return err;
+
+ switch (cmd) {
+ case IPU_IOC_GETBUF:
+ err = put_ipu_psys_buffer32(&karg.buf, up);
+ break;
+ case IPU_IOC_GET_MANIFEST:
+ err = put_ipu_psys_manifest32(&karg.m, up);
+ break;
+ }
+ return err;
+}
diff --git a/drivers/media/pci/intel/ipu-psys.c b/drivers/media/pci/intel/ipu-psys.c
new file mode 100644
index 0000000000000..0774ebc8bc9c0
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-psys.c
@@ -0,0 +1,1618 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2013 - 2020 Intel Corporation
+
+#include <linux/debugfs.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/dma-buf.h>
+#include <linux/firmware.h>
+#include <linux/fs.h>
+#include <linux/highmem.h>
+#include <linux/init_task.h>
+#include <linux/kthread.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/version.h>
+#include <linux/poll.h>
+#include <uapi/linux/sched/types.h>
+#include <linux/uaccess.h>
+#include <linux/vmalloc.h>
+#include <linux/dma-mapping.h>
+
+#include <uapi/linux/ipu-psys.h>
+
+#include "ipu.h"
+#include "ipu-mmu.h"
+#include "ipu-bus.h"
+#include "ipu-platform.h"
+#include "ipu-buttress.h"
+#include "ipu-cpd.h"
+#include "ipu-fw-psys.h"
+#include "ipu-psys.h"
+#include "ipu-platform-psys.h"
+#include "ipu-platform-regs.h"
+#include "ipu-fw-com.h"
+
+static bool async_fw_init;
+module_param(async_fw_init, bool, 0664);
+MODULE_PARM_DESC(async_fw_init, "Enable asynchronous firmware initialization");
+
+#define IPU_PSYS_NUM_DEVICES 4
+#define IPU_PSYS_AUTOSUSPEND_DELAY 2000
+
+#ifdef CONFIG_PM
+static int psys_runtime_pm_resume(struct device *dev);
+static int psys_runtime_pm_suspend(struct device *dev);
+#else
+#define pm_runtime_dont_use_autosuspend(d)
+#define pm_runtime_use_autosuspend(d)
+#define pm_runtime_set_autosuspend_delay(d, f) 0
+#define pm_runtime_get_sync(d) 0
+#define pm_runtime_put(d) 0
+#define pm_runtime_put_sync(d) 0
+#define pm_runtime_put_noidle(d) 0
+#define pm_runtime_put_autosuspend(d) 0
+#endif
+
+static dev_t ipu_psys_dev_t;
+static DECLARE_BITMAP(ipu_psys_devices, IPU_PSYS_NUM_DEVICES);
+static DEFINE_MUTEX(ipu_psys_mutex);
+
+static struct fw_init_task {
+ struct delayed_work work;
+ struct ipu_psys *psys;
+} fw_init_task;
+
+static void ipu_psys_remove(struct ipu_bus_device *adev);
+
+static struct bus_type ipu_psys_bus = {
+ .name = IPU_PSYS_NAME,
+};
+
+struct ipu_psys_pg *__get_pg_buf(struct ipu_psys *psys, size_t pg_size)
+{
+ struct ipu_psys_pg *kpg;
+ unsigned long flags;
+
+ spin_lock_irqsave(&psys->pgs_lock, flags);
+ list_for_each_entry(kpg, &psys->pgs, list) {
+ if (!kpg->pg_size && kpg->size >= pg_size) {
+ kpg->pg_size = pg_size;
+ spin_unlock_irqrestore(&psys->pgs_lock, flags);
+ return kpg;
+ }
+ }
+ spin_unlock_irqrestore(&psys->pgs_lock, flags);
+ /* no big enough buffer available, allocate new one */
+ kpg = kzalloc(sizeof(*kpg), GFP_KERNEL);
+ if (!kpg)
+ return NULL;
+
+ kpg->pg = dma_alloc_attrs(&psys->adev->dev, pg_size,
+ &kpg->pg_dma_addr, GFP_KERNEL, 0);
+ if (!kpg->pg) {
+ kfree(kpg);
+ return NULL;
+ }
+
+ kpg->pg_size = pg_size;
+ kpg->size = pg_size;
+ spin_lock_irqsave(&psys->pgs_lock, flags);
+ list_add(&kpg->list, &psys->pgs);
+ spin_unlock_irqrestore(&psys->pgs_lock, flags);
+
+ return kpg;
+}
+
+static int ipu_psys_unmapbuf_locked(int fd, struct ipu_psys_fh *fh,
+ struct ipu_psys_kbuffer *kbuf);
+struct ipu_psys_kbuffer *ipu_psys_lookup_kbuffer(struct ipu_psys_fh *fh, int fd)
+{
+ struct ipu_psys_kbuffer *kbuf;
+
+ list_for_each_entry(kbuf, &fh->bufmap, list) {
+ if (kbuf->fd == fd)
+ return kbuf;
+ }
+
+ return NULL;
+}
+
+struct ipu_psys_kbuffer *
+ipu_psys_lookup_kbuffer_by_kaddr(struct ipu_psys_fh *fh, void *kaddr)
+{
+ struct ipu_psys_kbuffer *kbuffer;
+
+ list_for_each_entry(kbuffer, &fh->bufmap, list) {
+ if (kbuffer->kaddr == kaddr)
+ return kbuffer;
+ }
+
+ return NULL;
+}
+
+static int ipu_psys_get_userpages(struct ipu_dma_buf_attach *attach)
+{
+ struct vm_area_struct *vma;
+ unsigned long start, end;
+ int npages, array_size;
+ struct page **pages;
+ struct sg_table *sgt;
+ int nr = 0;
+ int ret = -ENOMEM;
+
+ start = (unsigned long)attach->userptr;
+ end = PAGE_ALIGN(start + attach->len);
+ npages = (end - (start & PAGE_MASK)) >> PAGE_SHIFT;
+ array_size = npages * sizeof(struct page *);
+
+ sgt = kzalloc(sizeof(*sgt), GFP_KERNEL);
+ if (!sgt)
+ return -ENOMEM;
+
+ if (attach->npages != 0) {
+ pages = attach->pages;
+ npages = attach->npages;
+ attach->vma_is_io = 1;
+ goto skip_pages;
+ }
+
+ pages = kvzalloc(array_size, GFP_KERNEL);
+ if (!pages)
+ goto free_sgt;
+
+ mmap_read_lock(current->mm);
+ vma = find_vma(current->mm, start);
+ if (!vma) {
+ ret = -EFAULT;
+ goto error_up_read;
+ }
+
+ /*
+ * For buffers from Gralloc, VM_PFNMAP is expected,
+ * but VM_IO is set. Possibly bug in Gralloc.
+ */
+ attach->vma_is_io = vma->vm_flags & (VM_IO | VM_PFNMAP);
+
+ if (attach->vma_is_io) {
+ unsigned long io_start = start;
+
+ if (vma->vm_end < start + attach->len) {
+ dev_err(attach->dev,
+ "vma at %lu is too small for %llu bytes\n",
+ start, attach->len);
+ ret = -EFAULT;
+ goto error_up_read;
+ }
+
+ for (nr = 0; nr < npages; nr++, io_start += PAGE_SIZE) {
+ unsigned long pfn;
+
+ ret = follow_pfn(vma, io_start, &pfn);
+ if (ret)
+ goto error_up_read;
+ pages[nr] = pfn_to_page(pfn);
+ }
+ } else {
+ nr = get_user_pages(start & PAGE_MASK, npages,
+ FOLL_WRITE,
+ pages, NULL);
+ if (nr < npages)
+ goto error_up_read;
+ }
+ mmap_read_unlock(current->mm);
+
+ attach->pages = pages;
+ attach->npages = npages;
+
+skip_pages:
+ ret = sg_alloc_table_from_pages(sgt, pages, npages,
+ start & ~PAGE_MASK, attach->len,
+ GFP_KERNEL);
+ if (ret < 0)
+ goto error;
+
+ attach->sgt = sgt;
+
+ return 0;
+
+error_up_read:
+ mmap_read_unlock(current->mm);
+error:
+ if (!attach->vma_is_io)
+ while (nr > 0)
+ put_page(pages[--nr]);
+
+ if (array_size <= PAGE_SIZE)
+ kfree(pages);
+ else
+ vfree(pages);
+free_sgt:
+ kfree(sgt);
+
+ dev_err(attach->dev, "failed to get userpages:%d\n", ret);
+
+ return ret;
+}
+
+static void ipu_psys_put_userpages(struct ipu_dma_buf_attach *attach)
+{
+ if (!attach || !attach->userptr || !attach->sgt)
+ return;
+
+ if (!attach->vma_is_io) {
+ int i = attach->npages;
+
+ while (--i >= 0) {
+ set_page_dirty_lock(attach->pages[i]);
+ put_page(attach->pages[i]);
+ }
+ }
+
+ kvfree(attach->pages);
+
+ sg_free_table(attach->sgt);
+ kfree(attach->sgt);
+ attach->sgt = NULL;
+}
+
+static int ipu_dma_buf_attach(struct dma_buf *dbuf,
+ struct dma_buf_attachment *attach)
+{
+ struct ipu_psys_kbuffer *kbuf = dbuf->priv;
+ struct ipu_dma_buf_attach *ipu_attach;
+
+ ipu_attach = kzalloc(sizeof(*ipu_attach), GFP_KERNEL);
+ if (!ipu_attach)
+ return -ENOMEM;
+
+ ipu_attach->len = kbuf->len;
+ ipu_attach->userptr = kbuf->userptr;
+
+ attach->priv = ipu_attach;
+ return 0;
+}
+
+static void ipu_dma_buf_detach(struct dma_buf *dbuf,
+ struct dma_buf_attachment *attach)
+{
+ struct ipu_dma_buf_attach *ipu_attach = attach->priv;
+
+ kfree(ipu_attach);
+ attach->priv = NULL;
+}
+
+static struct sg_table *ipu_dma_buf_map(struct dma_buf_attachment *attach,
+ enum dma_data_direction dir)
+{
+ struct ipu_dma_buf_attach *ipu_attach = attach->priv;
+ unsigned long attrs;
+ int ret;
+
+ ret = ipu_psys_get_userpages(ipu_attach);
+ if (ret)
+ return NULL;
+
+ attrs = DMA_ATTR_SKIP_CPU_SYNC;
+ ret = dma_map_sg_attrs(attach->dev, ipu_attach->sgt->sgl,
+ ipu_attach->sgt->orig_nents, dir, attrs);
+ if (ret < ipu_attach->sgt->orig_nents) {
+ ipu_psys_put_userpages(ipu_attach);
+ dev_dbg(attach->dev, "buf map failed\n");
+
+ return ERR_PTR(-EIO);
+ }
+
+ /*
+ * Initial cache flush to avoid writing dirty pages for buffers which
+ * are later marked as IPU_BUFFER_FLAG_NO_FLUSH.
+ */
+ dma_sync_sg_for_device(attach->dev, ipu_attach->sgt->sgl,
+ ipu_attach->sgt->orig_nents, DMA_BIDIRECTIONAL);
+
+ return ipu_attach->sgt;
+}
+
+static void ipu_dma_buf_unmap(struct dma_buf_attachment *attach,
+ struct sg_table *sg, enum dma_data_direction dir)
+{
+ struct ipu_dma_buf_attach *ipu_attach = attach->priv;
+
+ dma_unmap_sg(attach->dev, sg->sgl, sg->orig_nents, dir);
+ ipu_psys_put_userpages(ipu_attach);
+}
+
+static int ipu_dma_buf_mmap(struct dma_buf *dbuf, struct vm_area_struct *vma)
+{
+ return -ENOTTY;
+}
+
+static void ipu_dma_buf_release(struct dma_buf *buf)
+{
+ struct ipu_psys_kbuffer *kbuf = buf->priv;
+
+ if (!kbuf)
+ return;
+
+ if (kbuf->db_attach) {
+ dev_dbg(kbuf->db_attach->dev,
+ "releasing buffer %d\n", kbuf->fd);
+ ipu_psys_put_userpages(kbuf->db_attach->priv);
+ }
+ kfree(kbuf);
+}
+
+static int ipu_dma_buf_begin_cpu_access(struct dma_buf *dma_buf,
+ enum dma_data_direction dir)
+{
+ return -ENOTTY;
+}
+
+static int ipu_dma_buf_vmap(struct dma_buf *dmabuf, struct dma_buf_map *map)
+{
+ struct dma_buf_attachment *attach;
+ struct ipu_dma_buf_attach *ipu_attach;
+
+ if (list_empty(&dmabuf->attachments))
+ return -EINVAL;
+
+ attach = list_last_entry(&dmabuf->attachments,
+ struct dma_buf_attachment, node);
+ ipu_attach = attach->priv;
+
+ if (!ipu_attach || !ipu_attach->pages || !ipu_attach->npages)
+ return -EINVAL;
+
+ map->vaddr = vm_map_ram(ipu_attach->pages, ipu_attach->npages, 0);
+ map->is_iomem = false;
+ if (!map->vaddr)
+ return -EINVAL;
+
+ return 0;
+}
+
+static void ipu_dma_buf_vunmap(struct dma_buf *dmabuf, struct dma_buf_map *map)
+{
+ struct dma_buf_attachment *attach;
+ struct ipu_dma_buf_attach *ipu_attach;
+
+ if (WARN_ON(list_empty(&dmabuf->attachments)))
+ return;
+
+ attach = list_last_entry(&dmabuf->attachments,
+ struct dma_buf_attachment, node);
+ ipu_attach = attach->priv;
+
+ if (WARN_ON(!ipu_attach || !ipu_attach->pages || !ipu_attach->npages))
+ return;
+
+ vm_unmap_ram(map->vaddr, ipu_attach->npages);
+}
+
+struct dma_buf_ops ipu_dma_buf_ops = {
+ .attach = ipu_dma_buf_attach,
+ .detach = ipu_dma_buf_detach,
+ .map_dma_buf = ipu_dma_buf_map,
+ .unmap_dma_buf = ipu_dma_buf_unmap,
+ .release = ipu_dma_buf_release,
+ .begin_cpu_access = ipu_dma_buf_begin_cpu_access,
+ .mmap = ipu_dma_buf_mmap,
+ .vmap = ipu_dma_buf_vmap,
+ .vunmap = ipu_dma_buf_vunmap,
+};
+
+static int ipu_psys_open(struct inode *inode, struct file *file)
+{
+ struct ipu_psys *psys = inode_to_ipu_psys(inode);
+ struct ipu_device *isp = psys->adev->isp;
+ struct ipu_psys_fh *fh;
+ int rval;
+
+ if (isp->flr_done)
+ return -EIO;
+
+ fh = kzalloc(sizeof(*fh), GFP_KERNEL);
+ if (!fh)
+ return -ENOMEM;
+
+ fh->psys = psys;
+
+ file->private_data = fh;
+
+ mutex_init(&fh->mutex);
+ INIT_LIST_HEAD(&fh->bufmap);
+ init_waitqueue_head(&fh->wait);
+
+ rval = ipu_psys_fh_init(fh);
+ if (rval)
+ goto open_failed;
+
+ mutex_lock(&psys->mutex);
+ list_add_tail(&fh->list, &psys->fhs);
+ mutex_unlock(&psys->mutex);
+
+ return 0;
+
+open_failed:
+ mutex_destroy(&fh->mutex);
+ kfree(fh);
+ return rval;
+}
+
+static inline void ipu_psys_kbuf_unmap(struct ipu_psys_kbuffer *kbuf)
+{
+ if (!kbuf)
+ return;
+
+ kbuf->valid = false;
+ if (kbuf->kaddr) {
+ struct dma_buf_map dmap;
+
+ dma_buf_map_set_vaddr(&dmap, kbuf->kaddr);
+ dma_buf_vunmap(kbuf->dbuf, &dmap);
+ }
+ if (kbuf->sgt)
+ dma_buf_unmap_attachment(kbuf->db_attach,
+ kbuf->sgt,
+ DMA_BIDIRECTIONAL);
+ if (kbuf->db_attach)
+ dma_buf_detach(kbuf->dbuf, kbuf->db_attach);
+ dma_buf_put(kbuf->dbuf);
+
+ kbuf->db_attach = NULL;
+ kbuf->dbuf = NULL;
+ kbuf->sgt = NULL;
+}
+
+static int ipu_psys_release(struct inode *inode, struct file *file)
+{
+ struct ipu_psys *psys = inode_to_ipu_psys(inode);
+ struct ipu_psys_fh *fh = file->private_data;
+ struct ipu_psys_kbuffer *kbuf, *kbuf0;
+ struct dma_buf_attachment *db_attach;
+
+ mutex_lock(&fh->mutex);
+ /* clean up buffers */
+ if (!list_empty(&fh->bufmap)) {
+ list_for_each_entry_safe(kbuf, kbuf0, &fh->bufmap, list) {
+ list_del(&kbuf->list);
+ db_attach = kbuf->db_attach;
+
+ /* Unmap and release buffers */
+ if (kbuf->dbuf && db_attach) {
+
+ ipu_psys_kbuf_unmap(kbuf);
+ } else {
+ if (db_attach)
+ ipu_psys_put_userpages(db_attach->priv);
+ kfree(kbuf);
+ }
+ }
+ }
+ mutex_unlock(&fh->mutex);
+
+ mutex_lock(&psys->mutex);
+ list_del(&fh->list);
+
+ mutex_unlock(&psys->mutex);
+ ipu_psys_fh_deinit(fh);
+
+ mutex_lock(&psys->mutex);
+ if (list_empty(&psys->fhs))
+ psys->power_gating = 0;
+ mutex_unlock(&psys->mutex);
+ mutex_destroy(&fh->mutex);
+ kfree(fh);
+
+ return 0;
+}
+
+static int ipu_psys_getbuf(struct ipu_psys_buffer *buf, struct ipu_psys_fh *fh)
+{
+ struct ipu_psys_kbuffer *kbuf;
+ struct ipu_psys *psys = fh->psys;
+
+ DEFINE_DMA_BUF_EXPORT_INFO(exp_info);
+ struct dma_buf *dbuf;
+ int ret;
+
+ if (!buf->base.userptr) {
+ dev_err(&psys->adev->dev, "Buffer allocation not supported\n");
+ return -EINVAL;
+ }
+
+ kbuf = kzalloc(sizeof(*kbuf), GFP_KERNEL);
+ if (!kbuf)
+ return -ENOMEM;
+
+ kbuf->len = buf->len;
+ kbuf->userptr = buf->base.userptr;
+ kbuf->flags = buf->flags;
+
+ exp_info.ops = &ipu_dma_buf_ops;
+ exp_info.size = kbuf->len;
+ exp_info.flags = O_RDWR;
+ exp_info.priv = kbuf;
+
+ dbuf = dma_buf_export(&exp_info);
+ if (IS_ERR(dbuf)) {
+ kfree(kbuf);
+ return PTR_ERR(dbuf);
+ }
+
+ ret = dma_buf_fd(dbuf, 0);
+ if (ret < 0) {
+ kfree(kbuf);
+ dma_buf_put(dbuf);
+ return ret;
+ }
+
+ kbuf->fd = ret;
+ buf->base.fd = ret;
+ kbuf->flags = buf->flags &= ~IPU_BUFFER_FLAG_USERPTR;
+ kbuf->flags = buf->flags |= IPU_BUFFER_FLAG_DMA_HANDLE;
+
+ mutex_lock(&fh->mutex);
+ list_add(&kbuf->list, &fh->bufmap);
+ mutex_unlock(&fh->mutex);
+
+ dev_dbg(&psys->adev->dev, "IOC_GETBUF: userptr %p size %llu to fd %d",
+ buf->base.userptr, buf->len, buf->base.fd);
+
+ return 0;
+}
+
+static int ipu_psys_putbuf(struct ipu_psys_buffer *buf, struct ipu_psys_fh *fh)
+{
+ return 0;
+}
+
+int ipu_psys_mapbuf_locked(int fd, struct ipu_psys_fh *fh,
+ struct ipu_psys_kbuffer *kbuf)
+{
+ struct ipu_psys *psys = fh->psys;
+ struct dma_buf *dbuf;
+ struct dma_buf_map dmap;
+ int ret;
+
+ dbuf = dma_buf_get(fd);
+ if (IS_ERR(dbuf))
+ return -EINVAL;
+
+ if (!kbuf) {
+ /* This fd isn't generated by ipu_psys_getbuf, it
+ * is a new fd. Create a new kbuf item for this fd, and
+ * add this kbuf to bufmap list.
+ */
+ kbuf = kzalloc(sizeof(*kbuf), GFP_KERNEL);
+ if (!kbuf) {
+ ret = -ENOMEM;
+ goto mapbuf_fail;
+ }
+
+ list_add(&kbuf->list, &fh->bufmap);
+ }
+
+ /* fd valid and found, need remap */
+ if (kbuf->dbuf && (kbuf->dbuf != dbuf || kbuf->len != dbuf->size)) {
+ dev_dbg(&psys->adev->dev,
+ "dmabuf fd %d with kbuf %p changed, need remap.\n",
+ fd, kbuf);
+ ret = ipu_psys_unmapbuf_locked(fd, fh, kbuf);
+ if (ret)
+ goto mapbuf_fail;
+
+ kbuf = ipu_psys_lookup_kbuffer(fh, fd);
+ /* changed external dmabuf */
+ if (!kbuf) {
+ kbuf = kzalloc(sizeof(*kbuf), GFP_KERNEL);
+ if (!kbuf) {
+ ret = -ENOMEM;
+ goto mapbuf_fail;
+ }
+ list_add(&kbuf->list, &fh->bufmap);
+ }
+ }
+
+ if (kbuf->sgt) {
+ dev_dbg(&psys->adev->dev, "fd %d has been mapped!\n", fd);
+ dma_buf_put(dbuf);
+ goto mapbuf_end;
+ }
+
+ kbuf->dbuf = dbuf;
+
+ if (kbuf->len == 0)
+ kbuf->len = kbuf->dbuf->size;
+
+ kbuf->fd = fd;
+
+ kbuf->db_attach = dma_buf_attach(kbuf->dbuf, &psys->adev->dev);
+ if (IS_ERR(kbuf->db_attach)) {
+ ret = PTR_ERR(kbuf->db_attach);
+ dev_dbg(&psys->adev->dev, "dma buf attach failed\n");
+ goto kbuf_map_fail;
+ }
+
+ kbuf->sgt = dma_buf_map_attachment(kbuf->db_attach, DMA_BIDIRECTIONAL);
+ if (IS_ERR_OR_NULL(kbuf->sgt)) {
+ ret = -EINVAL;
+ kbuf->sgt = NULL;
+ dev_dbg(&psys->adev->dev, "dma buf map attachment failed\n");
+ goto kbuf_map_fail;
+ }
+
+ kbuf->dma_addr = sg_dma_address(kbuf->sgt->sgl);
+
+ ret = dma_buf_vmap(kbuf->dbuf, &dmap);
+ if (ret) {
+ dev_dbg(&psys->adev->dev, "dma buf vmap failed\n");
+ goto kbuf_map_fail;
+ }
+ kbuf->kaddr = dmap.vaddr;
+
+ dev_dbg(&psys->adev->dev, "%s kbuf %p fd %d with len %llu mapped\n",
+ __func__, kbuf, fd, kbuf->len);
+mapbuf_end:
+
+ kbuf->valid = true;
+
+ return 0;
+
+kbuf_map_fail:
+ ipu_psys_kbuf_unmap(kbuf);
+
+ list_del(&kbuf->list);
+ if (!kbuf->userptr)
+ kfree(kbuf);
+ return ret;
+
+mapbuf_fail:
+ dma_buf_put(dbuf);
+
+ dev_err(&psys->adev->dev, "%s failed for fd %d\n", __func__, fd);
+ return ret;
+}
+
+static long ipu_psys_mapbuf(int fd, struct ipu_psys_fh *fh)
+{
+ long ret;
+ struct ipu_psys_kbuffer *kbuf;
+
+ mutex_lock(&fh->mutex);
+ kbuf = ipu_psys_lookup_kbuffer(fh, fd);
+ ret = ipu_psys_mapbuf_locked(fd, fh, kbuf);
+ mutex_unlock(&fh->mutex);
+
+ dev_dbg(&fh->psys->adev->dev, "IOC_MAPBUF ret %ld\n", ret);
+
+ return ret;
+}
+
+static int ipu_psys_unmapbuf_locked(int fd, struct ipu_psys_fh *fh,
+ struct ipu_psys_kbuffer *kbuf)
+{
+ struct ipu_psys *psys = fh->psys;
+
+ if (!kbuf || fd != kbuf->fd) {
+ dev_err(&psys->adev->dev, "invalid kbuffer\n");
+ return -EINVAL;
+ }
+
+ /* From now on it is not safe to use this kbuffer */
+ ipu_psys_kbuf_unmap(kbuf);
+
+ list_del(&kbuf->list);
+
+ if (!kbuf->userptr)
+ kfree(kbuf);
+
+ dev_dbg(&psys->adev->dev, "%s fd %d unmapped\n", __func__, fd);
+
+ return 0;
+}
+
+static long ipu_psys_unmapbuf(int fd, struct ipu_psys_fh *fh)
+{
+ struct ipu_psys_kbuffer *kbuf;
+ long ret;
+
+ mutex_lock(&fh->mutex);
+ kbuf = ipu_psys_lookup_kbuffer(fh, fd);
+ if (!kbuf) {
+ dev_err(&fh->psys->adev->dev,
+ "buffer with fd %d not found\n", fd);
+ mutex_unlock(&fh->mutex);
+ return -EINVAL;
+ }
+ ret = ipu_psys_unmapbuf_locked(fd, fh, kbuf);
+ mutex_unlock(&fh->mutex);
+
+ dev_dbg(&fh->psys->adev->dev, "IOC_UNMAPBUF\n");
+
+ return ret;
+}
+
+static unsigned int ipu_psys_poll(struct file *file,
+ struct poll_table_struct *wait)
+{
+ struct ipu_psys_fh *fh = file->private_data;
+ struct ipu_psys *psys = fh->psys;
+ unsigned int res = 0;
+
+ dev_dbg(&psys->adev->dev, "ipu psys poll\n");
+
+ poll_wait(file, &fh->wait, wait);
+
+ if (ipu_get_completed_kcmd(fh))
+ res = POLLIN;
+
+ dev_dbg(&psys->adev->dev, "ipu psys poll res %u\n", res);
+
+ return res;
+}
+
+static long ipu_get_manifest(struct ipu_psys_manifest *manifest,
+ struct ipu_psys_fh *fh)
+{
+ struct ipu_psys *psys = fh->psys;
+ struct ipu_device *isp = psys->adev->isp;
+ struct ipu_cpd_client_pkg_hdr *client_pkg;
+ u32 entries;
+ void *host_fw_data;
+ dma_addr_t dma_fw_data;
+ u32 client_pkg_offset;
+
+ host_fw_data = (void *)isp->cpd_fw->data;
+ dma_fw_data = sg_dma_address(psys->fw_sgt.sgl);
+
+ entries = ipu_cpd_pkg_dir_get_num_entries(psys->pkg_dir);
+ if (!manifest || manifest->index > entries - 1) {
+ dev_err(&psys->adev->dev, "invalid argument\n");
+ return -EINVAL;
+ }
+
+ if (!ipu_cpd_pkg_dir_get_size(psys->pkg_dir, manifest->index) ||
+ ipu_cpd_pkg_dir_get_type(psys->pkg_dir, manifest->index) <
+ IPU_CPD_PKG_DIR_CLIENT_PG_TYPE) {
+ dev_dbg(&psys->adev->dev, "invalid pkg dir entry\n");
+ return -ENOENT;
+ }
+
+ client_pkg_offset = ipu_cpd_pkg_dir_get_address(psys->pkg_dir,
+ manifest->index);
+ client_pkg_offset -= dma_fw_data;
+
+ client_pkg = host_fw_data + client_pkg_offset;
+ manifest->size = client_pkg->pg_manifest_size;
+
+ if (!manifest->manifest)
+ return 0;
+
+ if (copy_to_user(manifest->manifest,
+ (uint8_t *)client_pkg + client_pkg->pg_manifest_offs,
+ manifest->size)) {
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static long ipu_psys_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ union {
+ struct ipu_psys_buffer buf;
+ struct ipu_psys_command cmd;
+ struct ipu_psys_event ev;
+ struct ipu_psys_capability caps;
+ struct ipu_psys_manifest m;
+ } karg;
+ struct ipu_psys_fh *fh = file->private_data;
+ long err = 0;
+ void __user *up = (void __user *)arg;
+ bool copy = (cmd != IPU_IOC_MAPBUF && cmd != IPU_IOC_UNMAPBUF);
+
+ if (copy) {
+ if (_IOC_SIZE(cmd) > sizeof(karg))
+ return -ENOTTY;
+
+ if (_IOC_DIR(cmd) & _IOC_WRITE) {
+ err = copy_from_user(&karg, up, _IOC_SIZE(cmd));
+ if (err)
+ return -EFAULT;
+ }
+ }
+
+ switch (cmd) {
+ case IPU_IOC_MAPBUF:
+ err = ipu_psys_mapbuf(arg, fh);
+ break;
+ case IPU_IOC_UNMAPBUF:
+ err = ipu_psys_unmapbuf(arg, fh);
+ break;
+ case IPU_IOC_QUERYCAP:
+ karg.caps = fh->psys->caps;
+ break;
+ case IPU_IOC_GETBUF:
+ err = ipu_psys_getbuf(&karg.buf, fh);
+ break;
+ case IPU_IOC_PUTBUF:
+ err = ipu_psys_putbuf(&karg.buf, fh);
+ break;
+ case IPU_IOC_QCMD:
+ err = ipu_psys_kcmd_new(&karg.cmd, fh);
+ break;
+ case IPU_IOC_DQEVENT:
+ err = ipu_ioctl_dqevent(&karg.ev, fh, file->f_flags);
+ break;
+ case IPU_IOC_GET_MANIFEST:
+ err = ipu_get_manifest(&karg.m, fh);
+ break;
+ default:
+ err = -ENOTTY;
+ break;
+ }
+
+ if (err)
+ return err;
+
+ if (copy && _IOC_DIR(cmd) & _IOC_READ)
+ if (copy_to_user(up, &karg, _IOC_SIZE(cmd)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static const struct file_operations ipu_psys_fops = {
+ .open = ipu_psys_open,
+ .release = ipu_psys_release,
+ .unlocked_ioctl = ipu_psys_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = ipu_psys_compat_ioctl32,
+#endif
+ .poll = ipu_psys_poll,
+ .owner = THIS_MODULE,
+};
+
+static void ipu_psys_dev_release(struct device *dev)
+{
+}
+
+#ifdef CONFIG_PM
+static int psys_runtime_pm_resume(struct device *dev)
+{
+ struct ipu_bus_device *adev = to_ipu_bus_device(dev);
+ struct ipu_psys *psys = ipu_bus_get_drvdata(adev);
+ unsigned long flags;
+ int retval;
+
+ if (!psys)
+ return 0;
+
+ /*
+ * In runtime autosuspend mode, if the psys is in power on state, no
+ * need to resume again.
+ */
+ spin_lock_irqsave(&psys->ready_lock, flags);
+ if (psys->ready) {
+ spin_unlock_irqrestore(&psys->ready_lock, flags);
+ return 0;
+ }
+ spin_unlock_irqrestore(&psys->ready_lock, flags);
+
+ retval = ipu_mmu_hw_init(adev->mmu);
+ if (retval)
+ return retval;
+
+ if (async_fw_init && !psys->fwcom) {
+ dev_err(dev,
+ "%s: asynchronous firmware init not finished, skipping\n",
+ __func__);
+ return 0;
+ }
+
+ if (!ipu_buttress_auth_done(adev->isp)) {
+ dev_dbg(dev, "%s: not yet authenticated, skipping\n", __func__);
+ return 0;
+ }
+
+ ipu_psys_setup_hw(psys);
+
+ ipu_psys_subdomains_power(psys, 1);
+ ipu_trace_restore(&psys->adev->dev);
+
+ ipu_configure_spc(adev->isp,
+ &psys->pdata->ipdata->hw_variant,
+ IPU_CPD_PKG_DIR_PSYS_SERVER_IDX,
+ psys->pdata->base, psys->pkg_dir,
+ psys->pkg_dir_dma_addr);
+
+ retval = ipu_fw_psys_open(psys);
+ if (retval) {
+ dev_err(&psys->adev->dev, "Failed to open abi.\n");
+ return retval;
+ }
+
+ spin_lock_irqsave(&psys->ready_lock, flags);
+ psys->ready = 1;
+ spin_unlock_irqrestore(&psys->ready_lock, flags);
+
+ return 0;
+}
+
+static int psys_runtime_pm_suspend(struct device *dev)
+{
+ struct ipu_bus_device *adev = to_ipu_bus_device(dev);
+ struct ipu_psys *psys = ipu_bus_get_drvdata(adev);
+ unsigned long flags;
+ int rval;
+
+ if (!psys)
+ return 0;
+
+ if (!psys->ready)
+ return 0;
+
+ spin_lock_irqsave(&psys->ready_lock, flags);
+ psys->ready = 0;
+ spin_unlock_irqrestore(&psys->ready_lock, flags);
+
+ /*
+ * We can trace failure but better to not return an error.
+ * At suspend we are progressing towards psys power gated state.
+ * Any hang / failure inside psys will be forgotten soon.
+ */
+ rval = ipu_fw_psys_close(psys);
+ if (rval)
+ dev_err(dev, "Device close failure: %d\n", rval);
+
+ ipu_psys_subdomains_power(psys, 0);
+
+ ipu_mmu_hw_cleanup(adev->mmu);
+
+ return 0;
+}
+
+/* The following PM callbacks are needed to enable runtime PM in IPU PCI
+ * device resume, otherwise, runtime PM can't work in PCI resume from
+ * S3 state.
+ */
+static int psys_resume(struct device *dev)
+{
+ return 0;
+}
+
+static int psys_suspend(struct device *dev)
+{
+ return 0;
+}
+
+static const struct dev_pm_ops psys_pm_ops = {
+ .runtime_suspend = psys_runtime_pm_suspend,
+ .runtime_resume = psys_runtime_pm_resume,
+ .suspend = psys_suspend,
+ .resume = psys_resume,
+};
+
+#define PSYS_PM_OPS (&psys_pm_ops)
+#else
+#define PSYS_PM_OPS NULL
+#endif
+
+static int cpd_fw_reload(struct ipu_device *isp)
+{
+ struct ipu_psys *psys = ipu_bus_get_drvdata(isp->psys);
+ int rval;
+
+ if (!isp->secure_mode) {
+ dev_warn(&isp->pdev->dev,
+ "CPD firmware reload was only supported for secure mode.\n");
+ return -EINVAL;
+ }
+
+ if (isp->cpd_fw) {
+ ipu_cpd_free_pkg_dir(isp->psys, psys->pkg_dir,
+ psys->pkg_dir_dma_addr,
+ psys->pkg_dir_size);
+
+ ipu_buttress_unmap_fw_image(isp->psys, &psys->fw_sgt);
+ release_firmware(isp->cpd_fw);
+ isp->cpd_fw = NULL;
+ dev_info(&isp->pdev->dev, "Old FW removed\n");
+ }
+
+ rval = request_cpd_fw(&isp->cpd_fw, isp->cpd_fw_name,
+ &isp->pdev->dev);
+ if (rval) {
+ dev_err(&isp->pdev->dev, "Requesting firmware(%s) failed\n",
+ isp->cpd_fw_name);
+ return rval;
+ }
+
+ rval = ipu_cpd_validate_cpd_file(isp, isp->cpd_fw->data,
+ isp->cpd_fw->size);
+ if (rval) {
+ dev_err(&isp->pdev->dev, "Failed to validate cpd file\n");
+ goto out_release_firmware;
+ }
+
+ rval = ipu_buttress_map_fw_image(isp->psys, isp->cpd_fw, &psys->fw_sgt);
+ if (rval)
+ goto out_release_firmware;
+
+ psys->pkg_dir = ipu_cpd_create_pkg_dir(isp->psys,
+ isp->cpd_fw->data,
+ sg_dma_address(psys->fw_sgt.sgl),
+ &psys->pkg_dir_dma_addr,
+ &psys->pkg_dir_size);
+
+ if (!psys->pkg_dir) {
+ rval = -EINVAL;
+ goto out_unmap_fw_image;
+ }
+
+ isp->pkg_dir = psys->pkg_dir;
+ isp->pkg_dir_dma_addr = psys->pkg_dir_dma_addr;
+ isp->pkg_dir_size = psys->pkg_dir_size;
+
+ if (!isp->secure_mode)
+ return 0;
+
+ rval = ipu_fw_authenticate(isp, 1);
+ if (rval)
+ goto out_free_pkg_dir;
+
+ return 0;
+
+out_free_pkg_dir:
+ ipu_cpd_free_pkg_dir(isp->psys, psys->pkg_dir,
+ psys->pkg_dir_dma_addr, psys->pkg_dir_size);
+out_unmap_fw_image:
+ ipu_buttress_unmap_fw_image(isp->psys, &psys->fw_sgt);
+out_release_firmware:
+ release_firmware(isp->cpd_fw);
+ isp->cpd_fw = NULL;
+
+ return rval;
+}
+
+#ifdef CONFIG_DEBUG_FS
+static int ipu_psys_icache_prefetch_sp_get(void *data, u64 *val)
+{
+ struct ipu_psys *psys = data;
+
+ *val = psys->icache_prefetch_sp;
+ return 0;
+}
+
+static int ipu_psys_icache_prefetch_sp_set(void *data, u64 val)
+{
+ struct ipu_psys *psys = data;
+
+ if (val != !!val)
+ return -EINVAL;
+
+ psys->icache_prefetch_sp = val;
+
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(psys_icache_prefetch_sp_fops,
+ ipu_psys_icache_prefetch_sp_get,
+ ipu_psys_icache_prefetch_sp_set, "%llu\n");
+
+static int ipu_psys_icache_prefetch_isp_get(void *data, u64 *val)
+{
+ struct ipu_psys *psys = data;
+
+ *val = psys->icache_prefetch_isp;
+ return 0;
+}
+
+static int ipu_psys_icache_prefetch_isp_set(void *data, u64 val)
+{
+ struct ipu_psys *psys = data;
+
+ if (val != !!val)
+ return -EINVAL;
+
+ psys->icache_prefetch_isp = val;
+
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(psys_icache_prefetch_isp_fops,
+ ipu_psys_icache_prefetch_isp_get,
+ ipu_psys_icache_prefetch_isp_set, "%llu\n");
+
+static int ipu_psys_init_debugfs(struct ipu_psys *psys)
+{
+ struct dentry *file;
+ struct dentry *dir;
+
+ dir = debugfs_create_dir("psys", psys->adev->isp->ipu_dir);
+ if (IS_ERR(dir))
+ return -ENOMEM;
+
+ file = debugfs_create_file("icache_prefetch_sp", 0600,
+ dir, psys, &psys_icache_prefetch_sp_fops);
+ if (IS_ERR(file))
+ goto err;
+
+ file = debugfs_create_file("icache_prefetch_isp", 0600,
+ dir, psys, &psys_icache_prefetch_isp_fops);
+ if (IS_ERR(file))
+ goto err;
+
+ psys->debugfsdir = dir;
+
+#ifdef IPU_PSYS_GPC
+ if (ipu_psys_gpc_init_debugfs(psys))
+ return -ENOMEM;
+#endif
+
+ return 0;
+err:
+ debugfs_remove_recursive(dir);
+ return -ENOMEM;
+}
+#endif
+
+static int ipu_psys_sched_cmd(void *ptr)
+{
+ struct ipu_psys *psys = ptr;
+ size_t pending = 0;
+
+ while (1) {
+ wait_event_interruptible(psys->sched_cmd_wq,
+ (kthread_should_stop() ||
+ (pending =
+ atomic_read(&psys->wakeup_count))));
+
+ if (kthread_should_stop())
+ break;
+
+ if (pending == 0)
+ continue;
+
+ mutex_lock(&psys->mutex);
+ atomic_set(&psys->wakeup_count, 0);
+ ipu_psys_run_next(psys);
+ mutex_unlock(&psys->mutex);
+ }
+
+ return 0;
+}
+
+static void start_sp(struct ipu_bus_device *adev)
+{
+ struct ipu_psys *psys = ipu_bus_get_drvdata(adev);
+ void __iomem *spc_regs_base = psys->pdata->base +
+ psys->pdata->ipdata->hw_variant.spc_offset;
+ u32 val = 0;
+
+ val |= IPU_PSYS_SPC_STATUS_START |
+ IPU_PSYS_SPC_STATUS_RUN |
+ IPU_PSYS_SPC_STATUS_CTRL_ICACHE_INVALIDATE;
+ val |= psys->icache_prefetch_sp ?
+ IPU_PSYS_SPC_STATUS_ICACHE_PREFETCH : 0;
+ writel(val, spc_regs_base + IPU_PSYS_REG_SPC_STATUS_CTRL);
+}
+
+static int query_sp(struct ipu_bus_device *adev)
+{
+ struct ipu_psys *psys = ipu_bus_get_drvdata(adev);
+ void __iomem *spc_regs_base = psys->pdata->base +
+ psys->pdata->ipdata->hw_variant.spc_offset;
+ u32 val = readl(spc_regs_base + IPU_PSYS_REG_SPC_STATUS_CTRL);
+
+ /* return true when READY == 1, START == 0 */
+ val &= IPU_PSYS_SPC_STATUS_READY | IPU_PSYS_SPC_STATUS_START;
+
+ return val == IPU_PSYS_SPC_STATUS_READY;
+}
+
+static int ipu_psys_fw_init(struct ipu_psys *psys)
+{
+ unsigned int size;
+ struct ipu_fw_syscom_queue_config *queue_cfg;
+ struct ipu_fw_syscom_queue_config fw_psys_event_queue_cfg[] = {
+ {
+ IPU_FW_PSYS_EVENT_QUEUE_SIZE,
+ sizeof(struct ipu_fw_psys_event)
+ }
+ };
+ struct ipu_fw_psys_srv_init server_init = {
+ .ddr_pkg_dir_address = 0,
+ .host_ddr_pkg_dir = NULL,
+ .pkg_dir_size = 0,
+ .icache_prefetch_sp = psys->icache_prefetch_sp,
+ .icache_prefetch_isp = psys->icache_prefetch_isp,
+ };
+ struct ipu_fw_com_cfg fwcom = {
+ .num_output_queues = IPU_FW_PSYS_N_PSYS_EVENT_QUEUE_ID,
+ .output = fw_psys_event_queue_cfg,
+ .specific_addr = &server_init,
+ .specific_size = sizeof(server_init),
+ .cell_start = start_sp,
+ .cell_ready = query_sp,
+ .buttress_boot_offset = SYSCOM_BUTTRESS_FW_PARAMS_PSYS_OFFSET,
+ };
+ int i;
+
+ size = IPU6SE_FW_PSYS_N_PSYS_CMD_QUEUE_ID;
+ if (ipu_ver == IPU_VER_6 || ipu_ver == IPU_VER_6EP)
+ size = IPU6_FW_PSYS_N_PSYS_CMD_QUEUE_ID;
+
+ queue_cfg = devm_kzalloc(&psys->adev->dev, sizeof(*queue_cfg) * size,
+ GFP_KERNEL);
+ if (!queue_cfg)
+ return -ENOMEM;
+
+ for (i = 0; i < size; i++) {
+ queue_cfg[i].queue_size = IPU_FW_PSYS_CMD_QUEUE_SIZE;
+ queue_cfg[i].token_size = sizeof(struct ipu_fw_psys_cmd);
+ }
+
+ fwcom.input = queue_cfg;
+ fwcom.num_input_queues = size;
+ fwcom.dmem_addr = psys->pdata->ipdata->hw_variant.dmem_offset;
+
+ psys->fwcom = ipu_fw_com_prepare(&fwcom, psys->adev, psys->pdata->base);
+ if (!psys->fwcom) {
+ dev_err(&psys->adev->dev, "psys fw com prepare failed\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static void run_fw_init_work(struct work_struct *work)
+{
+ struct fw_init_task *task = (struct fw_init_task *)work;
+ struct ipu_psys *psys = task->psys;
+ int rval;
+
+ rval = ipu_psys_fw_init(psys);
+
+ if (rval) {
+ dev_err(&psys->adev->dev, "FW init failed(%d)\n", rval);
+ ipu_psys_remove(psys->adev);
+ } else {
+ dev_info(&psys->adev->dev, "FW init done\n");
+ }
+}
+
+static int ipu_psys_probe(struct ipu_bus_device *adev)
+{
+ struct ipu_device *isp = adev->isp;
+ struct ipu_psys_pg *kpg, *kpg0;
+ struct ipu_psys *psys;
+ unsigned int minor;
+ int i, rval = -E2BIG;
+
+ rval = ipu_mmu_hw_init(adev->mmu);
+ if (rval)
+ return rval;
+
+ mutex_lock(&ipu_psys_mutex);
+
+ minor = find_next_zero_bit(ipu_psys_devices, IPU_PSYS_NUM_DEVICES, 0);
+ if (minor == IPU_PSYS_NUM_DEVICES) {
+ dev_err(&adev->dev, "too many devices\n");
+ goto out_unlock;
+ }
+
+ psys = devm_kzalloc(&adev->dev, sizeof(*psys), GFP_KERNEL);
+ if (!psys) {
+ rval = -ENOMEM;
+ goto out_unlock;
+ }
+
+ psys->adev = adev;
+ psys->pdata = adev->pdata;
+ psys->icache_prefetch_sp = 0;
+
+ psys->power_gating = 0;
+
+ ipu_trace_init(adev->isp, psys->pdata->base, &adev->dev,
+ psys_trace_blocks);
+
+ cdev_init(&psys->cdev, &ipu_psys_fops);
+ psys->cdev.owner = ipu_psys_fops.owner;
+
+ rval = cdev_add(&psys->cdev, MKDEV(MAJOR(ipu_psys_dev_t), minor), 1);
+ if (rval) {
+ dev_err(&adev->dev, "cdev_add failed (%d)\n", rval);
+ goto out_unlock;
+ }
+
+ set_bit(minor, ipu_psys_devices);
+
+ spin_lock_init(&psys->ready_lock);
+ spin_lock_init(&psys->pgs_lock);
+ psys->ready = 0;
+ psys->timeout = IPU_PSYS_CMD_TIMEOUT_MS;
+
+ mutex_init(&psys->mutex);
+ INIT_LIST_HEAD(&psys->fhs);
+ INIT_LIST_HEAD(&psys->pgs);
+ INIT_LIST_HEAD(&psys->started_kcmds_list);
+
+ init_waitqueue_head(&psys->sched_cmd_wq);
+ atomic_set(&psys->wakeup_count, 0);
+ /*
+ * Create a thread to schedule commands sent to IPU firmware.
+ * The thread reduces the coupling between the command scheduler
+ * and queueing commands from the user to driver.
+ */
+ psys->sched_cmd_thread = kthread_run(ipu_psys_sched_cmd, psys,
+ "psys_sched_cmd");
+
+ if (IS_ERR(psys->sched_cmd_thread)) {
+ psys->sched_cmd_thread = NULL;
+ mutex_destroy(&psys->mutex);
+ goto out_unlock;
+ }
+
+ ipu_bus_set_drvdata(adev, psys);
+
+ rval = ipu_psys_resource_pool_init(&psys->resource_pool_running);
+ if (rval < 0) {
+ dev_err(&psys->dev,
+ "unable to alloc process group resources\n");
+ goto out_mutex_destroy;
+ }
+
+ ipu6_psys_hw_res_variant_init();
+ psys->pkg_dir = isp->pkg_dir;
+ psys->pkg_dir_dma_addr = isp->pkg_dir_dma_addr;
+ psys->pkg_dir_size = isp->pkg_dir_size;
+ psys->fw_sgt = isp->fw_sgt;
+
+ /* allocate and map memory for process groups */
+ for (i = 0; i < IPU_PSYS_PG_POOL_SIZE; i++) {
+ kpg = kzalloc(sizeof(*kpg), GFP_KERNEL);
+ if (!kpg)
+ goto out_free_pgs;
+ kpg->pg = dma_alloc_attrs(&adev->dev,
+ IPU_PSYS_PG_MAX_SIZE,
+ &kpg->pg_dma_addr,
+ GFP_KERNEL, 0);
+ if (!kpg->pg) {
+ kfree(kpg);
+ goto out_free_pgs;
+ }
+ kpg->size = IPU_PSYS_PG_MAX_SIZE;
+ list_add(&kpg->list, &psys->pgs);
+ }
+
+ psys->caps.pg_count = ipu_cpd_pkg_dir_get_num_entries(psys->pkg_dir);
+
+ dev_info(&adev->dev, "pkg_dir entry count:%d\n", psys->caps.pg_count);
+ if (async_fw_init) {
+ INIT_DELAYED_WORK((struct delayed_work *)&fw_init_task,
+ run_fw_init_work);
+ fw_init_task.psys = psys;
+ schedule_delayed_work((struct delayed_work *)&fw_init_task, 0);
+ } else {
+ rval = ipu_psys_fw_init(psys);
+ }
+
+ if (rval) {
+ dev_err(&adev->dev, "FW init failed(%d)\n", rval);
+ goto out_free_pgs;
+ }
+
+ psys->dev.parent = &adev->dev;
+ psys->dev.bus = &ipu_psys_bus;
+ psys->dev.devt = MKDEV(MAJOR(ipu_psys_dev_t), minor);
+ psys->dev.release = ipu_psys_dev_release;
+ dev_set_name(&psys->dev, "ipu-psys%d", minor);
+ rval = device_register(&psys->dev);
+ if (rval < 0) {
+ dev_err(&psys->dev, "psys device_register failed\n");
+ goto out_release_fw_com;
+ }
+
+ /* Add the hw stepping information to caps */
+ strlcpy(psys->caps.dev_model, IPU_MEDIA_DEV_MODEL_NAME,
+ sizeof(psys->caps.dev_model));
+
+ pm_runtime_set_autosuspend_delay(&psys->adev->dev,
+ IPU_PSYS_AUTOSUSPEND_DELAY);
+ pm_runtime_use_autosuspend(&psys->adev->dev);
+ pm_runtime_mark_last_busy(&psys->adev->dev);
+
+ mutex_unlock(&ipu_psys_mutex);
+
+#ifdef CONFIG_DEBUG_FS
+ /* Debug fs failure is not fatal. */
+ ipu_psys_init_debugfs(psys);
+#endif
+
+ adev->isp->cpd_fw_reload = &cpd_fw_reload;
+
+ dev_info(&adev->dev, "psys probe minor: %d\n", minor);
+
+ ipu_mmu_hw_cleanup(adev->mmu);
+
+ return 0;
+
+out_release_fw_com:
+ ipu_fw_com_release(psys->fwcom, 1);
+out_free_pgs:
+ list_for_each_entry_safe(kpg, kpg0, &psys->pgs, list) {
+ dma_free_attrs(&adev->dev, kpg->size, kpg->pg,
+ kpg->pg_dma_addr, 0);
+ kfree(kpg);
+ }
+
+ ipu_psys_resource_pool_cleanup(&psys->resource_pool_running);
+out_mutex_destroy:
+ mutex_destroy(&psys->mutex);
+ cdev_del(&psys->cdev);
+ if (psys->sched_cmd_thread) {
+ kthread_stop(psys->sched_cmd_thread);
+ psys->sched_cmd_thread = NULL;
+ }
+out_unlock:
+ /* Safe to call even if the init is not called */
+ ipu_trace_uninit(&adev->dev);
+ mutex_unlock(&ipu_psys_mutex);
+
+ ipu_mmu_hw_cleanup(adev->mmu);
+
+ return rval;
+}
+
+static void ipu_psys_remove(struct ipu_bus_device *adev)
+{
+ struct ipu_device *isp = adev->isp;
+ struct ipu_psys *psys = ipu_bus_get_drvdata(adev);
+ struct ipu_psys_pg *kpg, *kpg0;
+
+#ifdef CONFIG_DEBUG_FS
+ if (isp->ipu_dir)
+ debugfs_remove_recursive(psys->debugfsdir);
+#endif
+
+ flush_workqueue(IPU_PSYS_WORK_QUEUE);
+
+ if (psys->sched_cmd_thread) {
+ kthread_stop(psys->sched_cmd_thread);
+ psys->sched_cmd_thread = NULL;
+ }
+
+ pm_runtime_dont_use_autosuspend(&psys->adev->dev);
+
+ mutex_lock(&ipu_psys_mutex);
+
+ list_for_each_entry_safe(kpg, kpg0, &psys->pgs, list) {
+ dma_free_attrs(&adev->dev, kpg->size, kpg->pg,
+ kpg->pg_dma_addr, 0);
+ kfree(kpg);
+ }
+
+ if (psys->fwcom && ipu_fw_com_release(psys->fwcom, 1))
+ dev_err(&adev->dev, "fw com release failed.\n");
+
+ kfree(psys->server_init);
+ kfree(psys->syscom_config);
+
+ ipu_trace_uninit(&adev->dev);
+
+ ipu_psys_resource_pool_cleanup(&psys->resource_pool_running);
+
+ device_unregister(&psys->dev);
+
+ clear_bit(MINOR(psys->cdev.dev), ipu_psys_devices);
+ cdev_del(&psys->cdev);
+
+ mutex_unlock(&ipu_psys_mutex);
+
+ mutex_destroy(&psys->mutex);
+
+ dev_info(&adev->dev, "removed\n");
+}
+
+static irqreturn_t psys_isr_threaded(struct ipu_bus_device *adev)
+{
+ struct ipu_psys *psys = ipu_bus_get_drvdata(adev);
+ void __iomem *base = psys->pdata->base;
+ u32 status;
+ int r;
+
+ mutex_lock(&psys->mutex);
+#ifdef CONFIG_PM
+ r = pm_runtime_get_if_in_use(&psys->adev->dev);
+ if (!r || WARN_ON_ONCE(r < 0)) {
+ mutex_unlock(&psys->mutex);
+ return IRQ_NONE;
+ }
+#endif
+
+ status = readl(base + IPU_REG_PSYS_GPDEV_IRQ_STATUS);
+ writel(status, base + IPU_REG_PSYS_GPDEV_IRQ_CLEAR);
+
+ if (status & IPU_PSYS_GPDEV_IRQ_FWIRQ(IPU_PSYS_GPDEV_FWIRQ0)) {
+ writel(0, base + IPU_REG_PSYS_GPDEV_FWIRQ(0));
+ ipu_psys_handle_events(psys);
+ }
+
+ pm_runtime_mark_last_busy(&psys->adev->dev);
+ pm_runtime_put_autosuspend(&psys->adev->dev);
+ mutex_unlock(&psys->mutex);
+
+ return status ? IRQ_HANDLED : IRQ_NONE;
+}
+
+static struct ipu_bus_driver ipu_psys_driver = {
+ .probe = ipu_psys_probe,
+ .remove = ipu_psys_remove,
+ .isr_threaded = psys_isr_threaded,
+ .wanted = IPU_PSYS_NAME,
+ .drv = {
+ .name = IPU_PSYS_NAME,
+ .owner = THIS_MODULE,
+ .pm = PSYS_PM_OPS,
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
+ },
+};
+
+static int __init ipu_psys_init(void)
+{
+ int rval = alloc_chrdev_region(&ipu_psys_dev_t, 0,
+ IPU_PSYS_NUM_DEVICES, IPU_PSYS_NAME);
+ if (rval) {
+ pr_err("can't alloc psys chrdev region (%d)\n", rval);
+ return rval;
+ }
+
+ rval = bus_register(&ipu_psys_bus);
+ if (rval) {
+ pr_warn("can't register psys bus (%d)\n", rval);
+ goto out_bus_register;
+ }
+
+ ipu_bus_register_driver(&ipu_psys_driver);
+
+ return rval;
+
+out_bus_register:
+ unregister_chrdev_region(ipu_psys_dev_t, IPU_PSYS_NUM_DEVICES);
+
+ return rval;
+}
+
+static void __exit ipu_psys_exit(void)
+{
+ ipu_bus_unregister_driver(&ipu_psys_driver);
+ bus_unregister(&ipu_psys_bus);
+ unregister_chrdev_region(ipu_psys_dev_t, IPU_PSYS_NUM_DEVICES);
+}
+
+static const struct pci_device_id ipu_pci_tbl[] = {
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, IPU6_PCI_ID)},
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, IPU6SE_PCI_ID)},
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, IPU6EP_ADL_P_PCI_ID)},
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, IPU6EP_ADL_N_PCI_ID)},
+ {0,}
+};
+MODULE_DEVICE_TABLE(pci, ipu_pci_tbl);
+
+module_init(ipu_psys_init);
+module_exit(ipu_psys_exit);
+
+MODULE_AUTHOR("Antti Laakso <antti.laakso at intel.com>");
+MODULE_AUTHOR("Bin Han <bin.b.han at intel.com>");
+MODULE_AUTHOR("Renwei Wu <renwei.wu at intel.com>");
+MODULE_AUTHOR("Jianxu Zheng <jian.xu.zheng at intel.com>");
+MODULE_AUTHOR("Xia Wu <xia.wu at intel.com>");
+MODULE_AUTHOR("Bingbu Cao <bingbu.cao at intel.com>");
+MODULE_AUTHOR("Zaikuo Wang <zaikuo.wang at intel.com>");
+MODULE_AUTHOR("Yunliang Ding <yunliang.ding at intel.com>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Intel ipu processing system driver");
diff --git a/drivers/media/pci/intel/ipu-psys.h b/drivers/media/pci/intel/ipu-psys.h
new file mode 100644
index 0000000000000..80d70f2ef3cef
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-psys.h
@@ -0,0 +1,217 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2013 - 2020 Intel Corporation */
+
+#ifndef IPU_PSYS_H
+#define IPU_PSYS_H
+
+#include <linux/cdev.h>
+#include <linux/workqueue.h>
+
+#include "ipu.h"
+#include "ipu-pdata.h"
+#include "ipu-fw-psys.h"
+#include "ipu-platform-psys.h"
+
+#define IPU_PSYS_PG_POOL_SIZE 16
+#define IPU_PSYS_PG_MAX_SIZE 8192
+#define IPU_MAX_PSYS_CMD_BUFFERS 32
+#define IPU_PSYS_EVENT_CMD_COMPLETE IPU_FW_PSYS_EVENT_TYPE_SUCCESS
+#define IPU_PSYS_EVENT_FRAGMENT_COMPLETE IPU_FW_PSYS_EVENT_TYPE_SUCCESS
+#define IPU_PSYS_CLOSE_TIMEOUT_US 50
+#define IPU_PSYS_CLOSE_TIMEOUT (100000 / IPU_PSYS_CLOSE_TIMEOUT_US)
+#define IPU_PSYS_WORK_QUEUE system_power_efficient_wq
+#define IPU_MAX_RESOURCES 128
+
+/* Opaque structure. Do not access fields. */
+struct ipu_resource {
+ u32 id;
+ int elements; /* Number of elements available to allocation */
+ unsigned long *bitmap; /* Allocation bitmap, a bit for each element */
+};
+
+enum ipu_resource_type {
+ IPU_RESOURCE_DEV_CHN = 0,
+ IPU_RESOURCE_EXT_MEM,
+ IPU_RESOURCE_DFM
+};
+
+/* Allocation of resource(s) */
+/* Opaque structure. Do not access fields. */
+struct ipu_resource_alloc {
+ enum ipu_resource_type type;
+ struct ipu_resource *resource;
+ int elements;
+ int pos;
+};
+
+/*
+ * This struct represents all of the currently allocated
+ * resources from IPU model. It is used also for allocating
+ * resources for the next set of PGs to be run on IPU
+ * (ie. those PGs which are not yet being run and which don't
+ * yet reserve real IPU resources).
+ * Use larger array to cover existing resource quantity
+ */
+
+/* resource size may need expand for new resource model */
+struct ipu_psys_resource_pool {
+ u32 cells; /* Bitmask of cells allocated */
+ struct ipu_resource dev_channels[16];
+ struct ipu_resource ext_memory[32];
+ struct ipu_resource dfms[16];
+ DECLARE_BITMAP(cmd_queues, 32);
+ /* Protects cmd_queues bitmap */
+ spinlock_t queues_lock;
+};
+
+/*
+ * This struct keeps book of the resources allocated for a specific PG.
+ * It is used for freeing up resources from struct ipu_psys_resources
+ * when the PG is released from IPU (or model of IPU).
+ */
+struct ipu_psys_resource_alloc {
+ u32 cells; /* Bitmask of cells needed */
+ struct ipu_resource_alloc
+ resource_alloc[IPU_MAX_RESOURCES];
+ int resources;
+};
+
+struct task_struct;
+struct ipu_psys {
+ struct ipu_psys_capability caps;
+ struct cdev cdev;
+ struct device dev;
+
+ struct mutex mutex; /* Psys various */
+ int ready; /* psys fw status */
+ bool icache_prefetch_sp;
+ bool icache_prefetch_isp;
+ spinlock_t ready_lock; /* protect psys firmware state */
+ spinlock_t pgs_lock; /* Protect pgs list access */
+ struct list_head fhs;
+ struct list_head pgs;
+ struct list_head started_kcmds_list;
+ struct ipu_psys_pdata *pdata;
+ struct ipu_bus_device *adev;
+ struct ia_css_syscom_context *dev_ctx;
+ struct ia_css_syscom_config *syscom_config;
+ struct ia_css_psys_server_init *server_init;
+ struct task_struct *sched_cmd_thread;
+ wait_queue_head_t sched_cmd_wq;
+ atomic_t wakeup_count; /* Psys schedule thread wakeup count */
+#ifdef CONFIG_DEBUG_FS
+ struct dentry *debugfsdir;
+#endif
+
+ /* Resources needed to be managed for process groups */
+ struct ipu_psys_resource_pool resource_pool_running;
+
+ const struct firmware *fw;
+ struct sg_table fw_sgt;
+ u64 *pkg_dir;
+ dma_addr_t pkg_dir_dma_addr;
+ unsigned int pkg_dir_size;
+ unsigned long timeout;
+
+ int active_kcmds, started_kcmds;
+ void *fwcom;
+
+ int power_gating;
+};
+
+struct ipu_psys_fh {
+ struct ipu_psys *psys;
+ struct mutex mutex; /* Protects bufmap & kcmds fields */
+ struct list_head list;
+ struct list_head bufmap;
+ wait_queue_head_t wait;
+ struct ipu_psys_scheduler sched;
+};
+
+struct ipu_psys_pg {
+ struct ipu_fw_psys_process_group *pg;
+ size_t size;
+ size_t pg_size;
+ dma_addr_t pg_dma_addr;
+ struct list_head list;
+ struct ipu_psys_resource_alloc resource_alloc;
+};
+
+struct ipu_psys_kcmd {
+ struct ipu_psys_fh *fh;
+ struct list_head list;
+ struct ipu_psys_buffer_set *kbuf_set;
+ enum ipu_psys_cmd_state state;
+ void *pg_manifest;
+ size_t pg_manifest_size;
+ struct ipu_psys_kbuffer **kbufs;
+ struct ipu_psys_buffer *buffers;
+ size_t nbuffers;
+ struct ipu_fw_psys_process_group *pg_user;
+ struct ipu_psys_pg *kpg;
+ u64 user_token;
+ u64 issue_id;
+ u32 priority;
+ u32 kernel_enable_bitmap[4];
+ u32 terminal_enable_bitmap[4];
+ u32 routing_enable_bitmap[4];
+ u32 rbm[5];
+ struct ipu_buttress_constraint constraint;
+ struct ipu_psys_event ev;
+ struct timer_list watchdog;
+};
+
+struct ipu_dma_buf_attach {
+ struct device *dev;
+ u64 len;
+ void *userptr;
+ struct sg_table *sgt;
+ bool vma_is_io;
+ struct page **pages;
+ size_t npages;
+};
+
+struct ipu_psys_kbuffer {
+ u64 len;
+ void *userptr;
+ u32 flags;
+ int fd;
+ void *kaddr;
+ struct list_head list;
+ dma_addr_t dma_addr;
+ struct sg_table *sgt;
+ struct dma_buf_attachment *db_attach;
+ struct dma_buf *dbuf;
+ bool valid; /* True when buffer is usable */
+};
+
+#define inode_to_ipu_psys(inode) \
+ container_of((inode)->i_cdev, struct ipu_psys, cdev)
+
+#ifdef CONFIG_COMPAT
+long ipu_psys_compat_ioctl32(struct file *file, unsigned int cmd,
+ unsigned long arg);
+#endif
+
+void ipu_psys_setup_hw(struct ipu_psys *psys);
+void ipu_psys_subdomains_power(struct ipu_psys *psys, bool on);
+void ipu_psys_handle_events(struct ipu_psys *psys);
+int ipu_psys_kcmd_new(struct ipu_psys_command *cmd, struct ipu_psys_fh *fh);
+void ipu_psys_run_next(struct ipu_psys *psys);
+struct ipu_psys_pg *__get_pg_buf(struct ipu_psys *psys, size_t pg_size);
+struct ipu_psys_kbuffer *
+ipu_psys_lookup_kbuffer(struct ipu_psys_fh *fh, int fd);
+int ipu_psys_mapbuf_locked(int fd, struct ipu_psys_fh *fh,
+ struct ipu_psys_kbuffer *kbuf);
+struct ipu_psys_kbuffer *
+ipu_psys_lookup_kbuffer_by_kaddr(struct ipu_psys_fh *fh, void *kaddr);
+#ifdef IPU_PSYS_GPC
+int ipu_psys_gpc_init_debugfs(struct ipu_psys *psys);
+#endif
+int ipu_psys_resource_pool_init(struct ipu_psys_resource_pool *pool);
+void ipu_psys_resource_pool_cleanup(struct ipu_psys_resource_pool *pool);
+struct ipu_psys_kcmd *ipu_get_completed_kcmd(struct ipu_psys_fh *fh);
+long ipu_ioctl_dqevent(struct ipu_psys_event *event,
+ struct ipu_psys_fh *fh, unsigned int f_flags);
+
+#endif /* IPU_PSYS_H */
diff --git a/drivers/media/pci/intel/ipu-trace.c b/drivers/media/pci/intel/ipu-trace.c
new file mode 100644
index 0000000000000..4e7ee02a423bf
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-trace.c
@@ -0,0 +1,869 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2014 - 2021 Intel Corporation
+
+#include <linux/debugfs.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/sizes.h>
+#include <linux/uaccess.h>
+#include <linux/vmalloc.h>
+
+#include "ipu.h"
+#include "ipu-platform-regs.h"
+#include "ipu-trace.h"
+
+struct trace_register_range {
+ u32 start;
+ u32 end;
+};
+
+#define MEMORY_RING_BUFFER_SIZE (SZ_1M * 32)
+#define TRACE_MESSAGE_SIZE 16
+/*
+ * It looks that the trace unit sometimes writes outside the given buffer.
+ * To avoid memory corruption one extra page is reserved at the end
+ * of the buffer. Read also the extra area since it may contain valid data.
+ */
+#define MEMORY_RING_BUFFER_GUARD PAGE_SIZE
+#define MEMORY_RING_BUFFER_OVERREAD MEMORY_RING_BUFFER_GUARD
+#define MAX_TRACE_REGISTERS 200
+#define TRACE_CONF_DUMP_BUFFER_SIZE (MAX_TRACE_REGISTERS * 2 * 32)
+#define TRACE_CONF_DATA_MAX_LEN (1024 * 4)
+#define WPT_TRACE_CONF_DATA_MAX_LEN (1024 * 64)
+
+struct config_value {
+ u32 reg;
+ u32 value;
+};
+
+struct ipu_trace_buffer {
+ dma_addr_t dma_handle;
+ void *memory_buffer;
+};
+
+struct ipu_subsystem_wptrace_config {
+ bool open;
+ char *conf_dump_buffer;
+ int size_conf_dump;
+ unsigned int fill_level;
+ struct config_value config[MAX_TRACE_REGISTERS];
+};
+
+struct ipu_subsystem_trace_config {
+ u32 offset;
+ void __iomem *base;
+ struct ipu_trace_buffer memory; /* ring buffer */
+ struct device *dev;
+ struct ipu_trace_block *blocks;
+ unsigned int fill_level; /* Nbr of regs in config table below */
+ bool running;
+ /* Cached register values */
+ struct config_value config[MAX_TRACE_REGISTERS];
+ /* watchpoint trace info */
+ struct ipu_subsystem_wptrace_config wpt;
+};
+
+struct ipu_trace {
+ struct mutex lock; /* Protect ipu trace operations */
+ bool open;
+ char *conf_dump_buffer;
+ int size_conf_dump;
+
+ struct ipu_subsystem_trace_config isys;
+ struct ipu_subsystem_trace_config psys;
+};
+
+static void __ipu_trace_restore(struct device *dev)
+{
+ struct ipu_bus_device *adev = to_ipu_bus_device(dev);
+ struct ipu_device *isp = adev->isp;
+ struct ipu_trace *trace = isp->trace;
+ struct config_value *config;
+ struct ipu_subsystem_trace_config *sys = adev->trace_cfg;
+ struct ipu_trace_block *blocks;
+ u32 mapped_trace_buffer;
+ void __iomem *addr = NULL;
+ int i;
+
+ if (trace->open) {
+ dev_info(dev, "Trace control file open. Skipping update\n");
+ return;
+ }
+
+ if (!sys)
+ return;
+
+ /* leave if no trace configuration for this subsystem */
+ if (sys->fill_level == 0)
+ return;
+
+ /* Find trace unit base address */
+ blocks = sys->blocks;
+ while (blocks->type != IPU_TRACE_BLOCK_END) {
+ if (blocks->type == IPU_TRACE_BLOCK_TUN) {
+ addr = sys->base + blocks->offset;
+ break;
+ }
+ blocks++;
+ }
+ if (!addr)
+ return;
+
+ if (!sys->memory.memory_buffer) {
+ sys->memory.memory_buffer =
+ dma_alloc_coherent(dev, MEMORY_RING_BUFFER_SIZE +
+ MEMORY_RING_BUFFER_GUARD,
+ &sys->memory.dma_handle,
+ GFP_KERNEL);
+ }
+
+ if (!sys->memory.memory_buffer) {
+ dev_err(dev, "No memory for tracing. Trace unit disabled\n");
+ return;
+ }
+
+ config = sys->config;
+ mapped_trace_buffer = sys->memory.dma_handle;
+
+ /* ring buffer base */
+ writel(mapped_trace_buffer, addr + TRACE_REG_TUN_DRAM_BASE_ADDR);
+
+ /* ring buffer end */
+ writel(mapped_trace_buffer + MEMORY_RING_BUFFER_SIZE -
+ TRACE_MESSAGE_SIZE, addr + TRACE_REG_TUN_DRAM_END_ADDR);
+
+ /* Infobits for ddr trace */
+ writel(IPU_INFO_REQUEST_DESTINATION_PRIMARY,
+ addr + TRACE_REG_TUN_DDR_INFO_VAL);
+
+ /* Find trace timer reset address */
+ addr = NULL;
+ blocks = sys->blocks;
+ while (blocks->type != IPU_TRACE_BLOCK_END) {
+ if (blocks->type == IPU_TRACE_TIMER_RST) {
+ addr = sys->base + blocks->offset;
+ break;
+ }
+ blocks++;
+ }
+ if (!addr) {
+ dev_err(dev, "No trace reset addr\n");
+ return;
+ }
+
+ /* Remove reset from trace timers */
+ writel(TRACE_REG_GPREG_TRACE_TIMER_RST_OFF, addr);
+
+ /* Register config received from userspace */
+ for (i = 0; i < sys->fill_level; i++) {
+ dev_dbg(dev,
+ "Trace restore: reg 0x%08x, value 0x%08x\n",
+ config[i].reg, config[i].value);
+ writel(config[i].value, isp->base + config[i].reg);
+ }
+
+ /* Register wpt config received from userspace, and only psys has wpt */
+ config = sys->wpt.config;
+ for (i = 0; i < sys->wpt.fill_level; i++) {
+ dev_dbg(dev, "Trace restore: reg 0x%08x, value 0x%08x\n",
+ config[i].reg, config[i].value);
+ writel(config[i].value, isp->base + config[i].reg);
+ }
+ sys->running = true;
+}
+
+void ipu_trace_restore(struct device *dev)
+{
+ struct ipu_trace *trace = to_ipu_bus_device(dev)->isp->trace;
+
+ if (!trace)
+ return;
+
+ mutex_lock(&trace->lock);
+ __ipu_trace_restore(dev);
+ mutex_unlock(&trace->lock);
+}
+EXPORT_SYMBOL_GPL(ipu_trace_restore);
+
+static void __ipu_trace_stop(struct device *dev)
+{
+ struct ipu_subsystem_trace_config *sys =
+ to_ipu_bus_device(dev)->trace_cfg;
+ struct ipu_trace_block *blocks;
+
+ if (!sys)
+ return;
+
+ if (!sys->running)
+ return;
+ sys->running = false;
+
+ /* Turn off all the gpc blocks */
+ blocks = sys->blocks;
+ while (blocks->type != IPU_TRACE_BLOCK_END) {
+ if (blocks->type == IPU_TRACE_BLOCK_GPC) {
+ writel(0, sys->base + blocks->offset +
+ TRACE_REG_GPC_OVERALL_ENABLE);
+ }
+ blocks++;
+ }
+
+ /* Turn off all the trace monitors */
+ blocks = sys->blocks;
+ while (blocks->type != IPU_TRACE_BLOCK_END) {
+ if (blocks->type == IPU_TRACE_BLOCK_TM) {
+ writel(0, sys->base + blocks->offset +
+ TRACE_REG_TM_TRACE_ENABLE_NPK);
+
+ writel(0, sys->base + blocks->offset +
+ TRACE_REG_TM_TRACE_ENABLE_DDR);
+ }
+ blocks++;
+ }
+
+ /* Turn off trace units */
+ blocks = sys->blocks;
+ while (blocks->type != IPU_TRACE_BLOCK_END) {
+ if (blocks->type == IPU_TRACE_BLOCK_TUN) {
+ writel(0, sys->base + blocks->offset +
+ TRACE_REG_TUN_DDR_ENABLE);
+ writel(0, sys->base + blocks->offset +
+ TRACE_REG_TUN_NPK_ENABLE);
+ }
+ blocks++;
+ }
+}
+
+void ipu_trace_stop(struct device *dev)
+{
+ struct ipu_trace *trace = to_ipu_bus_device(dev)->isp->trace;
+
+ if (!trace)
+ return;
+
+ mutex_lock(&trace->lock);
+ __ipu_trace_stop(dev);
+ mutex_unlock(&trace->lock);
+}
+EXPORT_SYMBOL_GPL(ipu_trace_stop);
+
+static int update_register_cache(struct ipu_device *isp, u32 reg, u32 value)
+{
+ struct ipu_trace *dctrl = isp->trace;
+ struct ipu_subsystem_trace_config *sys;
+ int rval = -EINVAL;
+
+ if (dctrl->isys.offset == dctrl->psys.offset) {
+ /* For the IPU with uniform address space */
+ if (reg >= IPU_ISYS_OFFSET &&
+ reg < IPU_ISYS_OFFSET + TRACE_REG_MAX_ISYS_OFFSET)
+ sys = &dctrl->isys;
+ else if (reg >= IPU_PSYS_OFFSET &&
+ reg < IPU_PSYS_OFFSET + TRACE_REG_MAX_PSYS_OFFSET)
+ sys = &dctrl->psys;
+ else
+ goto error;
+ } else {
+ if (dctrl->isys.offset &&
+ reg >= dctrl->isys.offset &&
+ reg < dctrl->isys.offset + TRACE_REG_MAX_ISYS_OFFSET)
+ sys = &dctrl->isys;
+ else if (dctrl->psys.offset &&
+ reg >= dctrl->psys.offset &&
+ reg < dctrl->psys.offset + TRACE_REG_MAX_PSYS_OFFSET)
+ sys = &dctrl->psys;
+ else
+ goto error;
+ }
+
+ if (sys->fill_level < MAX_TRACE_REGISTERS) {
+ dev_dbg(sys->dev,
+ "Trace reg addr 0x%08x value 0x%08x\n", reg, value);
+ sys->config[sys->fill_level].reg = reg;
+ sys->config[sys->fill_level].value = value;
+ sys->fill_level++;
+ } else {
+ rval = -ENOMEM;
+ goto error;
+ }
+ return 0;
+error:
+ dev_info(&isp->pdev->dev,
+ "Trace register address 0x%08x ignored as invalid register\n",
+ reg);
+ return rval;
+}
+
+static void traceconf_dump(struct ipu_device *isp)
+{
+ struct ipu_subsystem_trace_config *sys[2] = {
+ &isp->trace->isys,
+ &isp->trace->psys
+ };
+ int i, j, rem_size;
+ char *out;
+
+ isp->trace->size_conf_dump = 0;
+ out = isp->trace->conf_dump_buffer;
+ rem_size = TRACE_CONF_DUMP_BUFFER_SIZE;
+
+ for (j = 0; j < ARRAY_SIZE(sys); j++) {
+ for (i = 0; i < sys[j]->fill_level && rem_size > 0; i++) {
+ int bytes_print;
+ int n = snprintf(out, rem_size, "0x%08x = 0x%08x\n",
+ sys[j]->config[i].reg,
+ sys[j]->config[i].value);
+
+ bytes_print = min(n, rem_size - 1);
+ rem_size -= bytes_print;
+ out += bytes_print;
+ }
+ }
+ isp->trace->size_conf_dump = out - isp->trace->conf_dump_buffer;
+}
+
+static void clear_trace_buffer(struct ipu_subsystem_trace_config *sys)
+{
+ if (!sys->memory.memory_buffer)
+ return;
+
+ memset(sys->memory.memory_buffer, 0, MEMORY_RING_BUFFER_SIZE +
+ MEMORY_RING_BUFFER_OVERREAD);
+
+ dma_sync_single_for_device(sys->dev,
+ sys->memory.dma_handle,
+ MEMORY_RING_BUFFER_SIZE +
+ MEMORY_RING_BUFFER_GUARD, DMA_FROM_DEVICE);
+}
+
+static int traceconf_open(struct inode *inode, struct file *file)
+{
+ int ret;
+ struct ipu_device *isp;
+
+ if (!inode->i_private)
+ return -EACCES;
+
+ isp = inode->i_private;
+
+ ret = mutex_trylock(&isp->trace->lock);
+ if (!ret)
+ return -EBUSY;
+
+ if (isp->trace->open) {
+ mutex_unlock(&isp->trace->lock);
+ return -EBUSY;
+ }
+
+ file->private_data = isp;
+ isp->trace->open = 1;
+ if (file->f_mode & FMODE_WRITE) {
+ /* TBD: Allocate temp buffer for processing.
+ * Push validated buffer to active config
+ */
+
+ /* Forget old config if opened for write */
+ isp->trace->isys.fill_level = 0;
+ isp->trace->psys.fill_level = 0;
+ isp->trace->psys.wpt.fill_level = 0;
+ }
+
+ if (file->f_mode & FMODE_READ) {
+ isp->trace->conf_dump_buffer =
+ vzalloc(TRACE_CONF_DUMP_BUFFER_SIZE);
+ if (!isp->trace->conf_dump_buffer) {
+ isp->trace->open = 0;
+ mutex_unlock(&isp->trace->lock);
+ return -ENOMEM;
+ }
+ traceconf_dump(isp);
+ }
+ mutex_unlock(&isp->trace->lock);
+ return 0;
+}
+
+static ssize_t traceconf_read(struct file *file, char __user *buf,
+ size_t len, loff_t *ppos)
+{
+ struct ipu_device *isp = file->private_data;
+
+ return simple_read_from_buffer(buf, len, ppos,
+ isp->trace->conf_dump_buffer,
+ isp->trace->size_conf_dump);
+}
+
+static ssize_t traceconf_write(struct file *file, const char __user *buf,
+ size_t len, loff_t *ppos)
+{
+ int i;
+ struct ipu_device *isp = file->private_data;
+ ssize_t bytes = 0;
+ char *ipu_trace_buffer = NULL;
+ size_t buffer_size = 0;
+ u32 ipu_trace_number = 0;
+ struct config_value *cfg_buffer = NULL;
+
+ if ((*ppos < 0) || (len > TRACE_CONF_DATA_MAX_LEN) ||
+ (len < sizeof(ipu_trace_number))) {
+ dev_info(&isp->pdev->dev,
+ "length is error, len:%ld, loff:%lld\n",
+ len, *ppos);
+ return -EINVAL;
+ }
+
+ ipu_trace_buffer = vzalloc(len);
+ if (!ipu_trace_buffer)
+ return -ENOMEM;
+
+ bytes = copy_from_user(ipu_trace_buffer, buf, len);
+ if (bytes != 0) {
+ vfree(ipu_trace_buffer);
+ return -EFAULT;
+ }
+
+ memcpy(&ipu_trace_number, ipu_trace_buffer, sizeof(u32));
+ buffer_size = ipu_trace_number * sizeof(struct config_value);
+ if ((buffer_size + sizeof(ipu_trace_number)) != len) {
+ dev_info(&isp->pdev->dev,
+ "File size is not right, len:%ld, buffer_size:%zu\n",
+ len, buffer_size);
+ vfree(ipu_trace_buffer);
+ return -EFAULT;
+ }
+
+ mutex_lock(&isp->trace->lock);
+ cfg_buffer = (struct config_value *)(ipu_trace_buffer + sizeof(u32));
+ for (i = 0; i < ipu_trace_number; i++) {
+ update_register_cache(isp, cfg_buffer[i].reg,
+ cfg_buffer[i].value);
+ }
+ mutex_unlock(&isp->trace->lock);
+ vfree(ipu_trace_buffer);
+
+ return len;
+}
+
+static int traceconf_release(struct inode *inode, struct file *file)
+{
+ struct ipu_device *isp = file->private_data;
+ struct device *psys_dev = isp->psys ? &isp->psys->dev : NULL;
+ struct device *isys_dev = isp->isys ? &isp->isys->dev : NULL;
+ int pm_rval = -EINVAL;
+
+ /*
+ * Turn devices on outside trace->lock mutex. PM transition may
+ * cause call to function which tries to take the same lock.
+ * Also do this before trace->open is set back to 0 to avoid
+ * double restore (one here and one in pm transition). We can't
+ * rely purely on the restore done by pm call backs since trace
+ * configuration can occur in any phase compared to other activity.
+ */
+
+ if (file->f_mode & FMODE_WRITE) {
+ if (isys_dev)
+ pm_rval = pm_runtime_get_sync(isys_dev);
+
+ if (pm_rval >= 0) {
+ /* ISYS ok or missing */
+ if (psys_dev)
+ pm_rval = pm_runtime_get_sync(psys_dev);
+
+ if (pm_rval < 0) {
+ pm_runtime_put_noidle(psys_dev);
+ if (isys_dev)
+ pm_runtime_put(isys_dev);
+ }
+ } else {
+ pm_runtime_put_noidle(&isp->isys->dev);
+ }
+ }
+
+ mutex_lock(&isp->trace->lock);
+ isp->trace->open = 0;
+ vfree(isp->trace->conf_dump_buffer);
+ isp->trace->conf_dump_buffer = NULL;
+
+ if (pm_rval >= 0) {
+ /* Update new cfg to HW */
+ if (isys_dev) {
+ __ipu_trace_stop(isys_dev);
+ clear_trace_buffer(isp->isys->trace_cfg);
+ __ipu_trace_restore(isys_dev);
+ }
+
+ if (psys_dev) {
+ __ipu_trace_stop(psys_dev);
+ clear_trace_buffer(isp->psys->trace_cfg);
+ __ipu_trace_restore(psys_dev);
+ }
+ }
+
+ mutex_unlock(&isp->trace->lock);
+
+ if (pm_rval >= 0) {
+ /* Again - this must be done with trace->lock not taken */
+ if (psys_dev)
+ pm_runtime_put(psys_dev);
+ if (isys_dev)
+ pm_runtime_put(isys_dev);
+ }
+ return 0;
+}
+
+static const struct file_operations ipu_traceconf_fops = {
+ .owner = THIS_MODULE,
+ .open = traceconf_open,
+ .release = traceconf_release,
+ .read = traceconf_read,
+ .write = traceconf_write,
+ .llseek = no_llseek,
+};
+
+static void wptraceconf_dump(struct ipu_device *isp)
+{
+ struct ipu_subsystem_wptrace_config *sys = &isp->trace->psys.wpt;
+ int i, rem_size;
+ char *out;
+
+ sys->size_conf_dump = 0;
+ out = sys->conf_dump_buffer;
+ rem_size = TRACE_CONF_DUMP_BUFFER_SIZE;
+
+ for (i = 0; i < sys->fill_level && rem_size > 0; i++) {
+ int bytes_print;
+ int n = snprintf(out, rem_size, "0x%08x = 0x%08x\n",
+ sys->config[i].reg,
+ sys->config[i].value);
+
+ bytes_print = min(n, rem_size - 1);
+ rem_size -= bytes_print;
+ out += bytes_print;
+ }
+ sys->size_conf_dump = out - sys->conf_dump_buffer;
+}
+
+static int wptraceconf_open(struct inode *inode, struct file *file)
+{
+ int ret;
+ struct ipu_device *isp;
+
+ if (!inode->i_private)
+ return -EACCES;
+
+ isp = inode->i_private;
+ ret = mutex_trylock(&isp->trace->lock);
+ if (!ret)
+ return -EBUSY;
+
+ if (isp->trace->psys.wpt.open) {
+ mutex_unlock(&isp->trace->lock);
+ return -EBUSY;
+ }
+
+ file->private_data = isp;
+ if (file->f_mode & FMODE_WRITE) {
+ /* TBD: Allocate temp buffer for processing.
+ * Push validated buffer to active config
+ */
+ /* Forget old config if opened for write */
+ isp->trace->psys.wpt.fill_level = 0;
+ }
+
+ if (file->f_mode & FMODE_READ) {
+ isp->trace->psys.wpt.conf_dump_buffer =
+ vzalloc(TRACE_CONF_DUMP_BUFFER_SIZE);
+ if (!isp->trace->psys.wpt.conf_dump_buffer) {
+ mutex_unlock(&isp->trace->lock);
+ return -ENOMEM;
+ }
+ wptraceconf_dump(isp);
+ }
+ mutex_unlock(&isp->trace->lock);
+ return 0;
+}
+
+static ssize_t wptraceconf_read(struct file *file, char __user *buf,
+ size_t len, loff_t *ppos)
+{
+ struct ipu_device *isp = file->private_data;
+
+ return simple_read_from_buffer(buf, len, ppos,
+ isp->trace->psys.wpt.conf_dump_buffer,
+ isp->trace->psys.wpt.size_conf_dump);
+}
+
+static ssize_t wptraceconf_write(struct file *file, const char __user *buf,
+ size_t len, loff_t *ppos)
+{
+ int i;
+ struct ipu_device *isp = file->private_data;
+ ssize_t bytes = 0;
+ char *wpt_info_buffer = NULL;
+ size_t buffer_size = 0;
+ u32 wp_node_number = 0;
+ struct config_value *wpt_buffer = NULL;
+ struct ipu_subsystem_wptrace_config *wpt = &isp->trace->psys.wpt;
+
+ if ((*ppos < 0) || (len > WPT_TRACE_CONF_DATA_MAX_LEN) ||
+ (len < sizeof(wp_node_number))) {
+ dev_info(&isp->pdev->dev,
+ "length is error, len:%ld, loff:%lld\n",
+ len, *ppos);
+ return -EINVAL;
+ }
+
+ wpt_info_buffer = vzalloc(len);
+ if (!wpt_info_buffer)
+ return -ENOMEM;
+
+ bytes = copy_from_user(wpt_info_buffer, buf, len);
+ if (bytes != 0) {
+ vfree(wpt_info_buffer);
+ return -EFAULT;
+ }
+
+ memcpy(&wp_node_number, wpt_info_buffer, sizeof(u32));
+ buffer_size = wp_node_number * sizeof(struct config_value);
+ if ((buffer_size + sizeof(wp_node_number)) != len) {
+ dev_info(&isp->pdev->dev,
+ "File size is not right, len:%ld, buffer_size:%zu\n",
+ len, buffer_size);
+ vfree(wpt_info_buffer);
+ return -EFAULT;
+ }
+
+ mutex_lock(&isp->trace->lock);
+ wpt_buffer = (struct config_value *)(wpt_info_buffer + sizeof(u32));
+ for (i = 0; i < wp_node_number; i++) {
+ if (wpt->fill_level < MAX_TRACE_REGISTERS) {
+ wpt->config[wpt->fill_level].reg = wpt_buffer[i].reg;
+ wpt->config[wpt->fill_level].value =
+ wpt_buffer[i].value;
+ wpt->fill_level++;
+ } else {
+ dev_info(&isp->pdev->dev,
+ "Address 0x%08x ignored as invalid register\n",
+ wpt_buffer[i].reg);
+ break;
+ }
+ }
+ mutex_unlock(&isp->trace->lock);
+ vfree(wpt_info_buffer);
+
+ return len;
+}
+
+static int wptraceconf_release(struct inode *inode, struct file *file)
+{
+ struct ipu_device *isp = file->private_data;
+
+ mutex_lock(&isp->trace->lock);
+ isp->trace->open = 0;
+ vfree(isp->trace->psys.wpt.conf_dump_buffer);
+ isp->trace->psys.wpt.conf_dump_buffer = NULL;
+ mutex_unlock(&isp->trace->lock);
+
+ return 0;
+}
+
+static const struct file_operations ipu_wptraceconf_fops = {
+ .owner = THIS_MODULE,
+ .open = wptraceconf_open,
+ .release = wptraceconf_release,
+ .read = wptraceconf_read,
+ .write = wptraceconf_write,
+ .llseek = no_llseek,
+};
+
+static int gettrace_open(struct inode *inode, struct file *file)
+{
+ struct ipu_subsystem_trace_config *sys = inode->i_private;
+
+ if (!sys)
+ return -EACCES;
+
+ if (!sys->memory.memory_buffer)
+ return -EACCES;
+
+ dma_sync_single_for_cpu(sys->dev,
+ sys->memory.dma_handle,
+ MEMORY_RING_BUFFER_SIZE +
+ MEMORY_RING_BUFFER_GUARD, DMA_FROM_DEVICE);
+
+ file->private_data = sys;
+ return 0;
+};
+
+static ssize_t gettrace_read(struct file *file, char __user *buf,
+ size_t len, loff_t *ppos)
+{
+ struct ipu_subsystem_trace_config *sys = file->private_data;
+
+ return simple_read_from_buffer(buf, len, ppos,
+ sys->memory.memory_buffer,
+ MEMORY_RING_BUFFER_SIZE +
+ MEMORY_RING_BUFFER_OVERREAD);
+}
+
+static ssize_t gettrace_write(struct file *file, const char __user *buf,
+ size_t len, loff_t *ppos)
+{
+ struct ipu_subsystem_trace_config *sys = file->private_data;
+ static const char str[] = "clear";
+ char buffer[sizeof(str)] = { 0 };
+ ssize_t ret;
+
+ ret = simple_write_to_buffer(buffer, sizeof(buffer), ppos, buf, len);
+ if (ret < 0)
+ return ret;
+
+ if (ret < sizeof(str) - 1)
+ return -EINVAL;
+
+ if (!strncmp(str, buffer, sizeof(str) - 1)) {
+ clear_trace_buffer(sys);
+ return len;
+ }
+
+ return -EINVAL;
+}
+
+static int gettrace_release(struct inode *inode, struct file *file)
+{
+ return 0;
+}
+
+static const struct file_operations ipu_gettrace_fops = {
+ .owner = THIS_MODULE,
+ .open = gettrace_open,
+ .release = gettrace_release,
+ .read = gettrace_read,
+ .write = gettrace_write,
+ .llseek = no_llseek,
+};
+
+int ipu_trace_init(struct ipu_device *isp, void __iomem *base,
+ struct device *dev, struct ipu_trace_block *blocks)
+{
+ struct ipu_bus_device *adev = to_ipu_bus_device(dev);
+ struct ipu_trace *trace = isp->trace;
+ struct ipu_subsystem_trace_config *sys;
+ int ret = 0;
+
+ if (!isp->trace)
+ return 0;
+
+ mutex_lock(&isp->trace->lock);
+
+ if (dev == &isp->isys->dev) {
+ sys = &trace->isys;
+ } else if (dev == &isp->psys->dev) {
+ sys = &trace->psys;
+ } else {
+ ret = -EINVAL;
+ goto leave;
+ }
+
+ adev->trace_cfg = sys;
+ sys->dev = dev;
+ sys->offset = base - isp->base; /* sub system offset */
+ sys->base = base;
+ sys->blocks = blocks;
+
+leave:
+ mutex_unlock(&isp->trace->lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(ipu_trace_init);
+
+void ipu_trace_uninit(struct device *dev)
+{
+ struct ipu_bus_device *adev = to_ipu_bus_device(dev);
+ struct ipu_device *isp = adev->isp;
+ struct ipu_trace *trace = isp->trace;
+ struct ipu_subsystem_trace_config *sys = adev->trace_cfg;
+
+ if (!trace || !sys)
+ return;
+
+ mutex_lock(&trace->lock);
+
+ if (sys->memory.memory_buffer)
+ dma_free_coherent(sys->dev,
+ MEMORY_RING_BUFFER_SIZE +
+ MEMORY_RING_BUFFER_GUARD,
+ sys->memory.memory_buffer,
+ sys->memory.dma_handle);
+
+ sys->dev = NULL;
+ sys->memory.memory_buffer = NULL;
+
+ mutex_unlock(&trace->lock);
+}
+EXPORT_SYMBOL_GPL(ipu_trace_uninit);
+
+int ipu_trace_debugfs_add(struct ipu_device *isp, struct dentry *dir)
+{
+ struct dentry *files[4];
+ int i = 0;
+
+ files[i] = debugfs_create_file("traceconf", 0644,
+ dir, isp, &ipu_traceconf_fops);
+ if (!files[i])
+ return -ENOMEM;
+ i++;
+
+ files[i] = debugfs_create_file("wptraceconf", 0644,
+ dir, isp, &ipu_wptraceconf_fops);
+ if (!files[i])
+ goto error;
+ i++;
+
+ files[i] = debugfs_create_file("getisystrace", 0444,
+ dir,
+ &isp->trace->isys, &ipu_gettrace_fops);
+
+ if (!files[i])
+ goto error;
+ i++;
+
+ files[i] = debugfs_create_file("getpsystrace", 0444,
+ dir,
+ &isp->trace->psys, &ipu_gettrace_fops);
+ if (!files[i])
+ goto error;
+
+ return 0;
+
+error:
+ for (; i > 0; i--)
+ debugfs_remove(files[i - 1]);
+ return -ENOMEM;
+}
+
+int ipu_trace_add(struct ipu_device *isp)
+{
+ isp->trace = devm_kzalloc(&isp->pdev->dev,
+ sizeof(struct ipu_trace), GFP_KERNEL);
+ if (!isp->trace)
+ return -ENOMEM;
+
+ mutex_init(&isp->trace->lock);
+
+ return 0;
+}
+
+void ipu_trace_release(struct ipu_device *isp)
+{
+ if (!isp->trace)
+ return;
+ mutex_destroy(&isp->trace->lock);
+}
+
+MODULE_AUTHOR("Samu Onkalo <samu.onkalo at intel.com>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Intel ipu trace support");
diff --git a/drivers/media/pci/intel/ipu-trace.h b/drivers/media/pci/intel/ipu-trace.h
new file mode 100644
index 0000000000000..f1233a3065193
--- /dev/null
+++ b/drivers/media/pci/intel/ipu-trace.h
@@ -0,0 +1,146 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2014 - 2021 Intel Corporation */
+
+#ifndef IPU_TRACE_H
+#define IPU_TRACE_H
+#include <linux/debugfs.h>
+
+/* Trace unit register offsets */
+#define TRACE_REG_TUN_DDR_ENABLE 0x000
+#define TRACE_REG_TUN_NPK_ENABLE 0x004
+#define TRACE_REG_TUN_DDR_INFO_VAL 0x008
+#define TRACE_REG_TUN_NPK_ADDR 0x00C
+#define TRACE_REG_TUN_DRAM_BASE_ADDR 0x010
+#define TRACE_REG_TUN_DRAM_END_ADDR 0x014
+#define TRACE_REG_TUN_LOCAL_TIMER0 0x018
+#define TRACE_REG_TUN_LOCAL_TIMER1 0x01C
+#define TRACE_REG_TUN_WR_PTR 0x020
+#define TRACE_REG_TUN_RD_PTR 0x024
+
+/*
+ * Following registers are left out on purpose:
+ * TUN_LOCAL_TIMER0, TUN_LOCAL_TIMER1, TUN_DRAM_BASE_ADDR
+ * TUN_DRAM_END_ADDR, TUN_WR_PTR, TUN_RD_PTR
+ */
+
+/* Trace monitor register offsets */
+#define TRACE_REG_TM_TRACE_ADDR_A 0x0900
+#define TRACE_REG_TM_TRACE_ADDR_B 0x0904
+#define TRACE_REG_TM_TRACE_ADDR_C 0x0908
+#define TRACE_REG_TM_TRACE_ADDR_D 0x090c
+#define TRACE_REG_TM_TRACE_ENABLE_NPK 0x0910
+#define TRACE_REG_TM_TRACE_ENABLE_DDR 0x0914
+#define TRACE_REG_TM_TRACE_PER_PC 0x0918
+#define TRACE_REG_TM_TRACE_PER_BRANCH 0x091c
+#define TRACE_REG_TM_TRACE_HEADER 0x0920
+#define TRACE_REG_TM_TRACE_CFG 0x0924
+#define TRACE_REG_TM_TRACE_LOST_PACKETS 0x0928
+#define TRACE_REG_TM_TRACE_LP_CLEAR 0x092c
+#define TRACE_REG_TM_TRACE_LMRUN_MASK 0x0930
+#define TRACE_REG_TM_TRACE_LMRUN_PC_LOW 0x0934
+#define TRACE_REG_TM_TRACE_LMRUN_PC_HIGH 0x0938
+#define TRACE_REG_TM_TRACE_MMIO_SEL 0x093c
+#define TRACE_REG_TM_TRACE_MMIO_WP0_LOW 0x0940
+#define TRACE_REG_TM_TRACE_MMIO_WP1_LOW 0x0944
+#define TRACE_REG_TM_TRACE_MMIO_WP2_LOW 0x0948
+#define TRACE_REG_TM_TRACE_MMIO_WP3_LOW 0x094c
+#define TRACE_REG_TM_TRACE_MMIO_WP0_HIGH 0x0950
+#define TRACE_REG_TM_TRACE_MMIO_WP1_HIGH 0x0954
+#define TRACE_REG_TM_TRACE_MMIO_WP2_HIGH 0x0958
+#define TRACE_REG_TM_TRACE_MMIO_WP3_HIGH 0x095c
+#define TRACE_REG_TM_FWTRACE_FIRST 0x0A00
+#define TRACE_REG_TM_FWTRACE_MIDDLE 0x0A04
+#define TRACE_REG_TM_FWTRACE_LAST 0x0A08
+
+/*
+ * Following exists only in (I)SP address space:
+ * TM_FWTRACE_FIRST, TM_FWTRACE_MIDDLE, TM_FWTRACE_LAST
+ */
+
+#define TRACE_REG_GPC_RESET 0x000
+#define TRACE_REG_GPC_OVERALL_ENABLE 0x004
+#define TRACE_REG_GPC_TRACE_HEADER 0x008
+#define TRACE_REG_GPC_TRACE_ADDRESS 0x00C
+#define TRACE_REG_GPC_TRACE_NPK_EN 0x010
+#define TRACE_REG_GPC_TRACE_DDR_EN 0x014
+#define TRACE_REG_GPC_TRACE_LPKT_CLEAR 0x018
+#define TRACE_REG_GPC_TRACE_LPKT 0x01C
+
+#define TRACE_REG_GPC_ENABLE_ID0 0x020
+#define TRACE_REG_GPC_ENABLE_ID1 0x024
+#define TRACE_REG_GPC_ENABLE_ID2 0x028
+#define TRACE_REG_GPC_ENABLE_ID3 0x02c
+
+#define TRACE_REG_GPC_VALUE_ID0 0x030
+#define TRACE_REG_GPC_VALUE_ID1 0x034
+#define TRACE_REG_GPC_VALUE_ID2 0x038
+#define TRACE_REG_GPC_VALUE_ID3 0x03c
+
+#define TRACE_REG_GPC_CNT_INPUT_SELECT_ID0 0x040
+#define TRACE_REG_GPC_CNT_INPUT_SELECT_ID1 0x044
+#define TRACE_REG_GPC_CNT_INPUT_SELECT_ID2 0x048
+#define TRACE_REG_GPC_CNT_INPUT_SELECT_ID3 0x04c
+
+#define TRACE_REG_GPC_CNT_START_SELECT_ID0 0x050
+#define TRACE_REG_GPC_CNT_START_SELECT_ID1 0x054
+#define TRACE_REG_GPC_CNT_START_SELECT_ID2 0x058
+#define TRACE_REG_GPC_CNT_START_SELECT_ID3 0x05c
+
+#define TRACE_REG_GPC_CNT_STOP_SELECT_ID0 0x060
+#define TRACE_REG_GPC_CNT_STOP_SELECT_ID1 0x064
+#define TRACE_REG_GPC_CNT_STOP_SELECT_ID2 0x068
+#define TRACE_REG_GPC_CNT_STOP_SELECT_ID3 0x06c
+
+#define TRACE_REG_GPC_CNT_MSG_SELECT_ID0 0x070
+#define TRACE_REG_GPC_CNT_MSG_SELECT_ID1 0x074
+#define TRACE_REG_GPC_CNT_MSG_SELECT_ID2 0x078
+#define TRACE_REG_GPC_CNT_MSG_SELECT_ID3 0x07c
+
+#define TRACE_REG_GPC_CNT_MSG_PLOAD_SELECT_ID0 0x080
+#define TRACE_REG_GPC_CNT_MSG_PLOAD_SELECT_ID1 0x084
+#define TRACE_REG_GPC_CNT_MSG_PLOAD_SELECT_ID2 0x088
+#define TRACE_REG_GPC_CNT_MSG_PLOAD_SELECT_ID3 0x08c
+
+#define TRACE_REG_GPC_IRQ_TRIGGER_VALUE_ID0 0x090
+#define TRACE_REG_GPC_IRQ_TRIGGER_VALUE_ID1 0x094
+#define TRACE_REG_GPC_IRQ_TRIGGER_VALUE_ID2 0x098
+#define TRACE_REG_GPC_IRQ_TRIGGER_VALUE_ID3 0x09c
+
+#define TRACE_REG_GPC_IRQ_TIMER_SELECT_ID0 0x0a0
+#define TRACE_REG_GPC_IRQ_TIMER_SELECT_ID1 0x0a4
+#define TRACE_REG_GPC_IRQ_TIMER_SELECT_ID2 0x0a8
+#define TRACE_REG_GPC_IRQ_TIMER_SELECT_ID3 0x0ac
+
+#define TRACE_REG_GPC_IRQ_ENABLE_ID0 0x0b0
+#define TRACE_REG_GPC_IRQ_ENABLE_ID1 0x0b4
+#define TRACE_REG_GPC_IRQ_ENABLE_ID2 0x0b8
+#define TRACE_REG_GPC_IRQ_ENABLE_ID3 0x0bc
+
+struct ipu_trace;
+struct ipu_subsystem_trace_config;
+
+enum ipu_trace_block_type {
+ IPU_TRACE_BLOCK_TUN = 0, /* Trace unit */
+ IPU_TRACE_BLOCK_TM, /* Trace monitor */
+ IPU_TRACE_BLOCK_GPC, /* General purpose control */
+ IPU_TRACE_CSI2, /* CSI2 legacy receiver */
+ IPU_TRACE_CSI2_3PH, /* CSI2 combo receiver */
+ IPU_TRACE_SIG2CIOS,
+ IPU_TRACE_TIMER_RST, /* Trace reset control timer */
+ IPU_TRACE_BLOCK_END /* End of list */
+};
+
+struct ipu_trace_block {
+ u32 offset; /* Offset to block inside subsystem */
+ enum ipu_trace_block_type type;
+};
+
+int ipu_trace_add(struct ipu_device *isp);
+int ipu_trace_debugfs_add(struct ipu_device *isp, struct dentry *dir);
+void ipu_trace_release(struct ipu_device *isp);
+int ipu_trace_init(struct ipu_device *isp, void __iomem *base,
+ struct device *dev, struct ipu_trace_block *blocks);
+void ipu_trace_restore(struct device *dev);
+void ipu_trace_uninit(struct device *dev);
+void ipu_trace_stop(struct device *dev);
+#endif
diff --git a/drivers/media/pci/intel/ipu.c b/drivers/media/pci/intel/ipu.c
new file mode 100644
index 0000000000000..691907561e9af
--- /dev/null
+++ b/drivers/media/pci/intel/ipu.c
@@ -0,0 +1,823 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2013 - 2020 Intel Corporation
+
+#include <linux/debugfs.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/firmware.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/pci.h>
+#include <linux/pm_qos.h>
+#include <linux/pm_runtime.h>
+#include <linux/timer.h>
+#include <linux/sched.h>
+
+#include "ipu.h"
+#include "ipu-buttress.h"
+#include "ipu-platform.h"
+#include "ipu-platform-buttress-regs.h"
+#include "ipu-cpd.h"
+#include "ipu-pdata.h"
+#include "ipu-bus.h"
+#include "ipu-mmu.h"
+#include "ipu-platform-regs.h"
+#include "ipu-platform-isys-csi2-reg.h"
+#include "ipu-trace.h"
+
+#define IPU_PCI_BAR 0
+enum ipu_version ipu_ver;
+EXPORT_SYMBOL(ipu_ver);
+
+static struct ipu_bus_device *ipu_isys_init(struct pci_dev *pdev,
+ struct device *parent,
+ struct ipu_buttress_ctrl *ctrl,
+ void __iomem *base,
+ const struct ipu_isys_internal_pdata
+ *ipdata,
+ unsigned int nr)
+{
+ struct ipu_bus_device *isys;
+ struct ipu_isys_pdata *pdata;
+
+ pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return ERR_PTR(-ENOMEM);
+
+ pdata->base = base;
+ pdata->ipdata = ipdata;
+
+ /* Use 250MHz for ipu6 se */
+ if (ipu_ver == IPU_VER_6SE)
+ ctrl->ratio = IPU6SE_IS_FREQ_CTL_DEFAULT_RATIO;
+
+ isys = ipu_bus_add_device(pdev, parent, pdata, ctrl,
+ IPU_ISYS_NAME, nr);
+ if (IS_ERR(isys))
+ return ERR_PTR(-ENOMEM);
+
+ isys->mmu = ipu_mmu_init(&pdev->dev, base, ISYS_MMID,
+ &ipdata->hw_variant);
+ if (IS_ERR(isys->mmu))
+ return ERR_PTR(-ENOMEM);
+
+ isys->mmu->dev = &isys->dev;
+
+ return isys;
+}
+
+static struct ipu_bus_device *ipu_psys_init(struct pci_dev *pdev,
+ struct device *parent,
+ struct ipu_buttress_ctrl *ctrl,
+ void __iomem *base,
+ const struct ipu_psys_internal_pdata
+ *ipdata, unsigned int nr)
+{
+ struct ipu_bus_device *psys;
+ struct ipu_psys_pdata *pdata;
+
+ pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return ERR_PTR(-ENOMEM);
+
+ pdata->base = base;
+ pdata->ipdata = ipdata;
+
+ psys = ipu_bus_add_device(pdev, parent, pdata, ctrl,
+ IPU_PSYS_NAME, nr);
+ if (IS_ERR(psys))
+ return ERR_PTR(-ENOMEM);
+
+ psys->mmu = ipu_mmu_init(&pdev->dev, base, PSYS_MMID,
+ &ipdata->hw_variant);
+ if (IS_ERR(psys->mmu))
+ return ERR_PTR(-ENOMEM);
+
+ psys->mmu->dev = &psys->dev;
+
+ return psys;
+}
+
+int ipu_fw_authenticate(void *data, u64 val)
+{
+ struct ipu_device *isp = data;
+ int ret;
+
+ if (!isp->secure_mode)
+ return -EINVAL;
+
+ ret = ipu_buttress_reset_authentication(isp);
+ if (ret) {
+ dev_err(&isp->pdev->dev, "Failed to reset authentication!\n");
+ return ret;
+ }
+
+ ret = pm_runtime_get_sync(&isp->psys->dev);
+ if (ret < 0) {
+ dev_err(&isp->pdev->dev, "Runtime PM failed (%d)\n", ret);
+ return ret;
+ }
+
+ ret = ipu_buttress_authenticate(isp);
+ if (ret) {
+ dev_err(&isp->pdev->dev, "FW authentication failed\n");
+ return ret;
+ }
+
+ pm_runtime_put(&isp->psys->dev);
+
+ return 0;
+}
+EXPORT_SYMBOL(ipu_fw_authenticate);
+DEFINE_SIMPLE_ATTRIBUTE(authenticate_fops, NULL, ipu_fw_authenticate, "%llu\n");
+
+#ifdef CONFIG_DEBUG_FS
+static int resume_ipu_bus_device(struct ipu_bus_device *adev)
+{
+ struct device *dev = &adev->dev;
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ if (!pm || !pm->resume)
+ return -EIO;
+
+ return pm->resume(dev);
+}
+
+static int suspend_ipu_bus_device(struct ipu_bus_device *adev)
+{
+ struct device *dev = &adev->dev;
+ const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+
+ if (!pm || !pm->suspend)
+ return -EIO;
+
+ return pm->suspend(dev);
+}
+
+static int force_suspend_get(void *data, u64 *val)
+{
+ struct ipu_device *isp = data;
+ struct ipu_buttress *b = &isp->buttress;
+
+ *val = b->force_suspend;
+ return 0;
+}
+
+static int force_suspend_set(void *data, u64 val)
+{
+ struct ipu_device *isp = data;
+ struct ipu_buttress *b = &isp->buttress;
+ int ret = 0;
+
+ if (val == b->force_suspend)
+ return 0;
+
+ if (val) {
+ b->force_suspend = 1;
+ ret = suspend_ipu_bus_device(isp->psys);
+ if (ret) {
+ dev_err(&isp->pdev->dev, "Failed to suspend psys\n");
+ return ret;
+ }
+ ret = suspend_ipu_bus_device(isp->isys);
+ if (ret) {
+ dev_err(&isp->pdev->dev, "Failed to suspend isys\n");
+ return ret;
+ }
+ ret = pci_set_power_state(isp->pdev, PCI_D3hot);
+ if (ret) {
+ dev_err(&isp->pdev->dev,
+ "Failed to suspend IUnit PCI device\n");
+ return ret;
+ }
+ } else {
+ ret = pci_set_power_state(isp->pdev, PCI_D0);
+ if (ret) {
+ dev_err(&isp->pdev->dev,
+ "Failed to suspend IUnit PCI device\n");
+ return ret;
+ }
+ ret = resume_ipu_bus_device(isp->isys);
+ if (ret) {
+ dev_err(&isp->pdev->dev, "Failed to resume isys\n");
+ return ret;
+ }
+ ret = resume_ipu_bus_device(isp->psys);
+ if (ret) {
+ dev_err(&isp->pdev->dev, "Failed to resume psys\n");
+ return ret;
+ }
+ b->force_suspend = 0;
+ }
+
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(force_suspend_fops, force_suspend_get,
+ force_suspend_set, "%llu\n");
+/*
+ * The sysfs interface for reloading cpd fw is there only for debug purpose,
+ * and it must not be used when either isys or psys is in use.
+ */
+static int cpd_fw_reload(void *data, u64 val)
+{
+ struct ipu_device *isp = data;
+ int rval = -EINVAL;
+
+ if (isp->cpd_fw_reload)
+ rval = isp->cpd_fw_reload(isp);
+
+ return rval;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(cpd_fw_fops, NULL, cpd_fw_reload, "%llu\n");
+
+static int ipu_init_debugfs(struct ipu_device *isp)
+{
+ struct dentry *file;
+ struct dentry *dir;
+
+ dir = debugfs_create_dir(pci_name(isp->pdev), NULL);
+ if (!dir)
+ return -ENOMEM;
+
+ file = debugfs_create_file("force_suspend", 0700, dir, isp,
+ &force_suspend_fops);
+ if (!file)
+ goto err;
+ file = debugfs_create_file("authenticate", 0700, dir, isp,
+ &authenticate_fops);
+ if (!file)
+ goto err;
+
+ file = debugfs_create_file("cpd_fw_reload", 0700, dir, isp,
+ &cpd_fw_fops);
+ if (!file)
+ goto err;
+
+ if (ipu_trace_debugfs_add(isp, dir))
+ goto err;
+
+ isp->ipu_dir = dir;
+
+ if (ipu_buttress_debugfs_init(isp))
+ goto err;
+
+ return 0;
+err:
+ debugfs_remove_recursive(dir);
+ return -ENOMEM;
+}
+
+static void ipu_remove_debugfs(struct ipu_device *isp)
+{
+ /*
+ * Since isys and psys debugfs dir will be created under ipu root dir,
+ * mark its dentry to NULL to avoid duplicate removal.
+ */
+ debugfs_remove_recursive(isp->ipu_dir);
+ isp->ipu_dir = NULL;
+}
+#endif /* CONFIG_DEBUG_FS */
+
+static int ipu_pci_config_setup(struct pci_dev *dev)
+{
+ u16 pci_command;
+ int rval;
+
+ pci_read_config_word(dev, PCI_COMMAND, &pci_command);
+ pci_command |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
+ pci_write_config_word(dev, PCI_COMMAND, pci_command);
+ if (ipu_ver == IPU_VER_6EP) {
+ /* likely do nothing as msi not enabled by default */
+ pci_disable_msi(dev);
+ return 0;
+ }
+
+ rval = pci_enable_msi(dev);
+ if (rval)
+ dev_err(&dev->dev, "Failed to enable msi (%d)\n", rval);
+
+ return rval;
+}
+
+static void ipu_configure_vc_mechanism(struct ipu_device *isp)
+{
+ u32 val = readl(isp->base + BUTTRESS_REG_BTRS_CTRL);
+
+ if (IPU_BTRS_ARB_STALL_MODE_VC0 == IPU_BTRS_ARB_MODE_TYPE_STALL)
+ val |= BUTTRESS_REG_BTRS_CTRL_STALL_MODE_VC0;
+ else
+ val &= ~BUTTRESS_REG_BTRS_CTRL_STALL_MODE_VC0;
+
+ if (IPU_BTRS_ARB_STALL_MODE_VC1 == IPU_BTRS_ARB_MODE_TYPE_STALL)
+ val |= BUTTRESS_REG_BTRS_CTRL_STALL_MODE_VC1;
+ else
+ val &= ~BUTTRESS_REG_BTRS_CTRL_STALL_MODE_VC1;
+
+ writel(val, isp->base + BUTTRESS_REG_BTRS_CTRL);
+}
+
+int request_cpd_fw(const struct firmware **firmware_p, const char *name,
+ struct device *device)
+{
+ const struct firmware *fw;
+ struct firmware *tmp;
+ int ret;
+
+ ret = request_firmware(&fw, name, device);
+ if (ret)
+ return ret;
+
+ if (is_vmalloc_addr(fw->data)) {
+ *firmware_p = fw;
+ } else {
+ tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
+ if (!tmp) {
+ release_firmware(fw);
+ return -ENOMEM;
+ }
+ tmp->size = fw->size;
+ tmp->data = vmalloc(fw->size);
+ if (!tmp->data) {
+ kfree(tmp);
+ release_firmware(fw);
+ return -ENOMEM;
+ }
+ memcpy((void *)tmp->data, fw->data, fw->size);
+ *firmware_p = tmp;
+ release_firmware(fw);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(request_cpd_fw);
+
+static int ipu_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ struct ipu_device *isp;
+ phys_addr_t phys;
+ void __iomem *const *iomap;
+ void __iomem *isys_base = NULL;
+ void __iomem *psys_base = NULL;
+ struct ipu_buttress_ctrl *isys_ctrl = NULL, *psys_ctrl = NULL;
+ unsigned int dma_mask = IPU_DMA_MASK;
+ int rval;
+
+ isp = devm_kzalloc(&pdev->dev, sizeof(*isp), GFP_KERNEL);
+ if (!isp)
+ return -ENOMEM;
+
+ dev_set_name(&pdev->dev, "intel-ipu");
+ isp->pdev = pdev;
+ INIT_LIST_HEAD(&isp->devices);
+
+ rval = pcim_enable_device(pdev);
+ if (rval) {
+ dev_err(&pdev->dev, "Failed to enable CI ISP device (%d)\n",
+ rval);
+ return rval;
+ }
+
+ dev_info(&pdev->dev, "Device 0x%x (rev: 0x%x)\n",
+ pdev->device, pdev->revision);
+
+ phys = pci_resource_start(pdev, IPU_PCI_BAR);
+
+ rval = pcim_iomap_regions(pdev,
+ 1 << IPU_PCI_BAR,
+ pci_name(pdev));
+ if (rval) {
+ dev_err(&pdev->dev, "Failed to I/O memory remapping (%d)\n",
+ rval);
+ return rval;
+ }
+ dev_info(&pdev->dev, "physical base address 0x%llx\n", phys);
+
+ iomap = pcim_iomap_table(pdev);
+ if (!iomap) {
+ dev_err(&pdev->dev, "Failed to iomap table (%d)\n", rval);
+ return -ENODEV;
+ }
+
+ isp->base = iomap[IPU_PCI_BAR];
+ dev_info(&pdev->dev, "mapped as: 0x%p\n", isp->base);
+
+ pci_set_drvdata(pdev, isp);
+ pci_set_master(pdev);
+
+ switch (id->device) {
+ case IPU6_PCI_ID:
+ ipu_ver = IPU_VER_6;
+ isp->cpd_fw_name = IPU6_FIRMWARE_NAME;
+ break;
+ case IPU6SE_PCI_ID:
+ ipu_ver = IPU_VER_6SE;
+ isp->cpd_fw_name = IPU6SE_FIRMWARE_NAME;
+ break;
+ case IPU6EP_ADL_P_PCI_ID:
+ case IPU6EP_ADL_N_PCI_ID:
+ ipu_ver = IPU_VER_6EP;
+ isp->cpd_fw_name = IPU6EP_FIRMWARE_NAME;
+ break;
+ default:
+ WARN(1, "Unsupported IPU device");
+ return -ENODEV;
+ }
+
+ ipu_internal_pdata_init();
+
+ isys_base = isp->base + isys_ipdata.hw_variant.offset;
+ psys_base = isp->base + psys_ipdata.hw_variant.offset;
+
+ dev_dbg(&pdev->dev, "isys_base: 0x%lx\n", (unsigned long)isys_base);
+ dev_dbg(&pdev->dev, "psys_base: 0x%lx\n", (unsigned long)psys_base);
+
+ rval = pci_set_dma_mask(pdev, DMA_BIT_MASK(dma_mask));
+ if (!rval)
+ rval = pci_set_consistent_dma_mask(pdev,
+ DMA_BIT_MASK(dma_mask));
+ if (rval) {
+ dev_err(&pdev->dev, "Failed to set DMA mask (%d)\n", rval);
+ return rval;
+ }
+
+ dma_set_max_seg_size(&pdev->dev, UINT_MAX);
+
+ rval = ipu_pci_config_setup(pdev);
+ if (rval)
+ return rval;
+
+ rval = devm_request_threaded_irq(&pdev->dev, pdev->irq,
+ ipu_buttress_isr,
+ ipu_buttress_isr_threaded,
+ IRQF_SHARED, IPU_NAME, isp);
+ if (rval) {
+ dev_err(&pdev->dev, "Requesting irq failed(%d)\n", rval);
+ return rval;
+ }
+
+ rval = ipu_buttress_init(isp);
+ if (rval)
+ return rval;
+
+ dev_info(&pdev->dev, "cpd file name: %s\n", isp->cpd_fw_name);
+
+ rval = request_cpd_fw(&isp->cpd_fw, isp->cpd_fw_name, &pdev->dev);
+ if (rval) {
+ dev_err(&isp->pdev->dev, "Requesting signed firmware failed\n");
+ return rval;
+ }
+
+ rval = ipu_cpd_validate_cpd_file(isp, isp->cpd_fw->data,
+ isp->cpd_fw->size);
+ if (rval) {
+ dev_err(&isp->pdev->dev, "Failed to validate cpd\n");
+ goto out_ipu_bus_del_devices;
+ }
+
+ rval = ipu_trace_add(isp);
+ if (rval)
+ dev_err(&pdev->dev, "Trace support not available\n");
+
+ pm_runtime_put_noidle(&pdev->dev);
+ pm_runtime_allow(&pdev->dev);
+
+ /*
+ * NOTE Device hierarchy below is important to ensure proper
+ * runtime suspend and resume order.
+ * Also registration order is important to ensure proper
+ * suspend and resume order during system
+ * suspend. Registration order is as follows:
+ * isys->psys
+ */
+ isys_ctrl = devm_kzalloc(&pdev->dev, sizeof(*isys_ctrl), GFP_KERNEL);
+ if (!isys_ctrl) {
+ rval = -ENOMEM;
+ goto out_ipu_bus_del_devices;
+ }
+
+ /* Init butress control with default values based on the HW */
+ memcpy(isys_ctrl, &isys_buttress_ctrl, sizeof(*isys_ctrl));
+
+ isp->isys = ipu_isys_init(pdev, &pdev->dev,
+ isys_ctrl, isys_base,
+ &isys_ipdata,
+ 0);
+ if (IS_ERR(isp->isys)) {
+ rval = PTR_ERR(isp->isys);
+ goto out_ipu_bus_del_devices;
+ }
+
+ psys_ctrl = devm_kzalloc(&pdev->dev, sizeof(*psys_ctrl), GFP_KERNEL);
+ if (!psys_ctrl) {
+ rval = -ENOMEM;
+ goto out_ipu_bus_del_devices;
+ }
+
+ /* Init butress control with default values based on the HW */
+ memcpy(psys_ctrl, &psys_buttress_ctrl, sizeof(*psys_ctrl));
+
+ isp->psys = ipu_psys_init(pdev, &isp->isys->dev,
+ psys_ctrl, psys_base,
+ &psys_ipdata, 0);
+ if (IS_ERR(isp->psys)) {
+ rval = PTR_ERR(isp->psys);
+ goto out_ipu_bus_del_devices;
+ }
+
+ rval = pm_runtime_get_sync(&isp->psys->dev);
+ if (rval < 0) {
+ dev_err(&isp->psys->dev, "Failed to get runtime PM\n");
+ goto out_ipu_bus_del_devices;
+ }
+
+ rval = ipu_mmu_hw_init(isp->psys->mmu);
+ if (rval) {
+ dev_err(&isp->pdev->dev, "Failed to set mmu hw\n");
+ goto out_ipu_bus_del_devices;
+ }
+
+ rval = ipu_buttress_map_fw_image(isp->psys, isp->cpd_fw,
+ &isp->fw_sgt);
+ if (rval) {
+ dev_err(&isp->pdev->dev, "failed to map fw image\n");
+ goto out_ipu_bus_del_devices;
+ }
+
+ isp->pkg_dir = ipu_cpd_create_pkg_dir(isp->psys,
+ isp->cpd_fw->data,
+ sg_dma_address(isp->fw_sgt.sgl),
+ &isp->pkg_dir_dma_addr,
+ &isp->pkg_dir_size);
+ if (!isp->pkg_dir) {
+ rval = -ENOMEM;
+ dev_err(&isp->pdev->dev, "failed to create pkg dir\n");
+ goto out_ipu_bus_del_devices;
+ }
+
+ rval = ipu_buttress_authenticate(isp);
+ if (rval) {
+ dev_err(&isp->pdev->dev, "FW authentication failed(%d)\n",
+ rval);
+ goto out_ipu_bus_del_devices;
+ }
+
+ ipu_mmu_hw_cleanup(isp->psys->mmu);
+ pm_runtime_put(&isp->psys->dev);
+
+#ifdef CONFIG_DEBUG_FS
+ rval = ipu_init_debugfs(isp);
+ if (rval) {
+ dev_err(&pdev->dev, "Failed to initialize debugfs");
+ goto out_ipu_bus_del_devices;
+ }
+#endif
+
+ /* Configure the arbitration mechanisms for VC requests */
+ ipu_configure_vc_mechanism(isp);
+
+ dev_info(&pdev->dev, "IPU driver version %d.%d\n", IPU_MAJOR_VERSION,
+ IPU_MINOR_VERSION);
+
+ return 0;
+
+out_ipu_bus_del_devices:
+ if (isp->pkg_dir) {
+ ipu_cpd_free_pkg_dir(isp->psys, isp->pkg_dir,
+ isp->pkg_dir_dma_addr,
+ isp->pkg_dir_size);
+ ipu_buttress_unmap_fw_image(isp->psys, &isp->fw_sgt);
+ isp->pkg_dir = NULL;
+ }
+ if (isp->psys && isp->psys->mmu)
+ ipu_mmu_cleanup(isp->psys->mmu);
+ if (isp->isys && isp->isys->mmu)
+ ipu_mmu_cleanup(isp->isys->mmu);
+ if (isp->psys)
+ pm_runtime_put(&isp->psys->dev);
+ ipu_bus_del_devices(pdev);
+ ipu_buttress_exit(isp);
+ release_firmware(isp->cpd_fw);
+
+ return rval;
+}
+
+static void ipu_pci_remove(struct pci_dev *pdev)
+{
+ struct ipu_device *isp = pci_get_drvdata(pdev);
+
+#ifdef CONFIG_DEBUG_FS
+ ipu_remove_debugfs(isp);
+#endif
+ ipu_trace_release(isp);
+
+ ipu_cpd_free_pkg_dir(isp->psys, isp->pkg_dir, isp->pkg_dir_dma_addr,
+ isp->pkg_dir_size);
+
+ ipu_buttress_unmap_fw_image(isp->psys, &isp->fw_sgt);
+
+ isp->pkg_dir = NULL;
+ isp->pkg_dir_dma_addr = 0;
+ isp->pkg_dir_size = 0;
+
+ ipu_bus_del_devices(pdev);
+
+ pm_runtime_forbid(&pdev->dev);
+ pm_runtime_get_noresume(&pdev->dev);
+
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+
+ ipu_buttress_exit(isp);
+
+ release_firmware(isp->cpd_fw);
+
+ ipu_mmu_cleanup(isp->psys->mmu);
+ ipu_mmu_cleanup(isp->isys->mmu);
+}
+
+static void ipu_pci_reset_prepare(struct pci_dev *pdev)
+{
+ struct ipu_device *isp = pci_get_drvdata(pdev);
+
+ dev_warn(&pdev->dev, "FLR prepare\n");
+ pm_runtime_forbid(&isp->pdev->dev);
+ isp->flr_done = true;
+}
+
+static void ipu_pci_reset_done(struct pci_dev *pdev)
+{
+ struct ipu_device *isp = pci_get_drvdata(pdev);
+
+ ipu_buttress_restore(isp);
+ if (isp->secure_mode)
+ ipu_buttress_reset_authentication(isp);
+
+ ipu_bus_flr_recovery();
+ isp->ipc_reinit = true;
+ pm_runtime_allow(&isp->pdev->dev);
+
+ dev_warn(&pdev->dev, "FLR completed\n");
+}
+
+#ifdef CONFIG_PM
+
+/*
+ * PCI base driver code requires driver to provide these to enable
+ * PCI device level PM state transitions (D0<->D3)
+ */
+static int ipu_suspend(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct ipu_device *isp = pci_get_drvdata(pdev);
+
+ isp->flr_done = false;
+
+ return 0;
+}
+
+static int ipu_resume(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct ipu_device *isp = pci_get_drvdata(pdev);
+ struct ipu_buttress *b = &isp->buttress;
+ int rval;
+
+ /* Configure the arbitration mechanisms for VC requests */
+ ipu_configure_vc_mechanism(isp);
+
+ ipu_buttress_set_secure_mode(isp);
+ isp->secure_mode = ipu_buttress_get_secure_mode(isp);
+ dev_info(dev, "IPU in %s mode\n",
+ isp->secure_mode ? "secure" : "non-secure");
+
+ ipu_buttress_restore(isp);
+
+ rval = ipu_buttress_ipc_reset(isp, &b->cse);
+ if (rval)
+ dev_err(&isp->pdev->dev, "IPC reset protocol failed!\n");
+
+ rval = pm_runtime_get_sync(&isp->psys->dev);
+ if (rval < 0) {
+ dev_err(&isp->psys->dev, "Failed to get runtime PM\n");
+ return 0;
+ }
+
+ rval = ipu_buttress_authenticate(isp);
+ if (rval)
+ dev_err(&isp->pdev->dev, "FW authentication failed(%d)\n",
+ rval);
+
+ pm_runtime_put(&isp->psys->dev);
+
+ return 0;
+}
+
+static int ipu_runtime_resume(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct ipu_device *isp = pci_get_drvdata(pdev);
+ int rval;
+
+ ipu_configure_vc_mechanism(isp);
+ ipu_buttress_restore(isp);
+
+ if (isp->ipc_reinit) {
+ struct ipu_buttress *b = &isp->buttress;
+
+ isp->ipc_reinit = false;
+ rval = ipu_buttress_ipc_reset(isp, &b->cse);
+ if (rval)
+ dev_err(&isp->pdev->dev,
+ "IPC reset protocol failed!\n");
+ }
+
+ return 0;
+}
+
+static const struct dev_pm_ops ipu_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(&ipu_suspend, &ipu_resume)
+ SET_RUNTIME_PM_OPS(&ipu_suspend, /* Same as in suspend flow */
+ &ipu_runtime_resume,
+ NULL)
+};
+
+#define IPU_PM (&ipu_pm_ops)
+#else
+#define IPU_PM NULL
+#endif
+
+static const struct pci_device_id ipu_pci_tbl[] = {
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, IPU6_PCI_ID)},
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, IPU6SE_PCI_ID)},
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, IPU6EP_ADL_P_PCI_ID)},
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, IPU6EP_ADL_N_PCI_ID)},
+ {0,}
+};
+MODULE_DEVICE_TABLE(pci, ipu_pci_tbl);
+
+static const struct pci_error_handlers pci_err_handlers = {
+ .reset_prepare = ipu_pci_reset_prepare,
+ .reset_done = ipu_pci_reset_done,
+};
+
+static struct pci_driver ipu_pci_driver = {
+ .name = IPU_NAME,
+ .id_table = ipu_pci_tbl,
+ .probe = ipu_pci_probe,
+ .remove = ipu_pci_remove,
+ .driver = {
+ .pm = IPU_PM,
+ },
+ .err_handler = &pci_err_handlers,
+};
+
+static int __init ipu_init(void)
+{
+ int rval = ipu_bus_register();
+
+ if (rval) {
+ pr_warn("can't register ipu bus (%d)\n", rval);
+ return rval;
+ }
+
+ rval = pci_register_driver(&ipu_pci_driver);
+ if (rval) {
+ pr_warn("can't register pci driver (%d)\n", rval);
+ goto out_pci_register_driver;
+ }
+
+ return 0;
+
+out_pci_register_driver:
+ ipu_bus_unregister();
+
+ return rval;
+}
+
+static void __exit ipu_exit(void)
+{
+ pci_unregister_driver(&ipu_pci_driver);
+ ipu_bus_unregister();
+}
+
+module_init(ipu_init);
+module_exit(ipu_exit);
+
+MODULE_AUTHOR("Sakari Ailus <sakari.ailus at linux.intel.com>");
+MODULE_AUTHOR("Jouni Högander <jouni.hogander at intel.com>");
+MODULE_AUTHOR("Antti Laakso <antti.laakso at intel.com>");
+MODULE_AUTHOR("Samu Onkalo <samu.onkalo at intel.com>");
+MODULE_AUTHOR("Jianxu Zheng <jian.xu.zheng at intel.com>");
+MODULE_AUTHOR("Tianshu Qiu <tian.shu.qiu at intel.com>");
+MODULE_AUTHOR("Renwei Wu <renwei.wu at intel.com>");
+MODULE_AUTHOR("Bingbu Cao <bingbu.cao at intel.com>");
+MODULE_AUTHOR("Yunliang Ding <yunliang.ding at intel.com>");
+MODULE_AUTHOR("Zaikuo Wang <zaikuo.wang at intel.com>");
+MODULE_AUTHOR("Leifu Zhao <leifu.zhao at intel.com>");
+MODULE_AUTHOR("Xia Wu <xia.wu at intel.com>");
+MODULE_AUTHOR("Kun Jiang <kun.jiang at intel.com>");
+MODULE_AUTHOR("Intel");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Intel ipu pci driver");
diff --git a/drivers/media/pci/intel/ipu.h b/drivers/media/pci/intel/ipu.h
new file mode 100644
index 0000000000000..4ef08954dceaa
--- /dev/null
+++ b/drivers/media/pci/intel/ipu.h
@@ -0,0 +1,109 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2013 - 2020 Intel Corporation */
+
+#ifndef IPU_H
+#define IPU_H
+
+#include <linux/ioport.h>
+#include <linux/list.h>
+#include <uapi/linux/media.h>
+#include <linux/version.h>
+
+#include "ipu-pdata.h"
+#include "ipu-bus.h"
+#include "ipu-buttress.h"
+#include "ipu-trace.h"
+
+#define IPU6_PCI_ID 0x9a19
+#define IPU6SE_PCI_ID 0x4e19
+#define IPU6EP_ADL_P_PCI_ID 0x465d
+#define IPU6EP_ADL_N_PCI_ID 0x462e
+
+enum ipu_version {
+ IPU_VER_INVALID = 0,
+ IPU_VER_6,
+ IPU_VER_6SE,
+ IPU_VER_6EP,
+};
+
+/*
+ * IPU version definitions to reflect the IPU driver changes.
+ * Both ISYS and PSYS share the same version.
+ */
+#define IPU_MAJOR_VERSION 1
+#define IPU_MINOR_VERSION 0
+#define IPU_DRIVER_VERSION (IPU_MAJOR_VERSION << 16 | IPU_MINOR_VERSION)
+
+/* processing system frequency: 25Mhz x ratio, Legal values [8,32] */
+#define PS_FREQ_CTL_DEFAULT_RATIO 0x12
+
+/* input system frequency: 1600Mhz / divisor. Legal values [2,8] */
+#define IS_FREQ_SOURCE 1600000000
+#define IS_FREQ_CTL_DIVISOR 0x4
+
+/*
+ * ISYS DMA can overshoot. For higher resolutions over allocation is one line
+ * but it must be at minimum 1024 bytes. Value could be different in
+ * different versions / generations thus provide it via platform data.
+ */
+#define IPU_ISYS_OVERALLOC_MIN 1024
+
+/*
+ * Physical pages in GDA is 128, page size is 2K for IPU6, 1K for others.
+ */
+#define IPU_DEVICE_GDA_NR_PAGES 128
+
+/*
+ * Virtualization factor to calculate the available virtual pages.
+ */
+#define IPU_DEVICE_GDA_VIRT_FACTOR 32
+
+struct pci_dev;
+struct list_head;
+struct firmware;
+
+#define NR_OF_MMU_RESOURCES 2
+
+struct ipu_device {
+ struct pci_dev *pdev;
+ struct list_head devices;
+ struct ipu_bus_device *isys;
+ struct ipu_bus_device *psys;
+ struct ipu_buttress buttress;
+
+ const struct firmware *cpd_fw;
+ const char *cpd_fw_name;
+ u64 *pkg_dir;
+ dma_addr_t pkg_dir_dma_addr;
+ unsigned int pkg_dir_size;
+ struct sg_table fw_sgt;
+
+ void __iomem *base;
+#ifdef CONFIG_DEBUG_FS
+ struct dentry *ipu_dir;
+#endif
+ struct ipu_trace *trace;
+ bool flr_done;
+ bool ipc_reinit;
+ bool secure_mode;
+
+ int (*cpd_fw_reload)(struct ipu_device *isp);
+};
+
+#define IPU_DMA_MASK 39
+#define IPU_LIB_CALL_TIMEOUT_MS 2000
+#define IPU_PSYS_CMD_TIMEOUT_MS 2000
+#define IPU_PSYS_OPEN_TIMEOUT_US 50
+#define IPU_PSYS_OPEN_RETRY (10000 / IPU_PSYS_OPEN_TIMEOUT_US)
+
+int ipu_fw_authenticate(void *data, u64 val);
+void ipu_configure_spc(struct ipu_device *isp,
+ const struct ipu_hw_variants *hw_variant,
+ int pkg_dir_idx, void __iomem *base, u64 *pkg_dir,
+ dma_addr_t pkg_dir_dma_addr);
+int request_cpd_fw(const struct firmware **firmware_p, const char *name,
+ struct device *device);
+extern enum ipu_version ipu_ver;
+void ipu_internal_pdata_init(void);
+
+#endif /* IPU_H */
diff --git a/drivers/media/pci/intel/ipu6/Makefile b/drivers/media/pci/intel/ipu6/Makefile
new file mode 100644
index 0000000000000..11464fd482d5a
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/Makefile
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2017 - 2020 Intel Corporation.
+
+ifneq ($(EXTERNAL_BUILD), 1)
+srcpath := $(srctree)
+endif
+
+ccflags-y += -DIPU_TPG_FRAME_SYNC -DIPU_PSYS_GPC \
+ -DIPU_ISYS_GPC
+
+intel-ipu6-objs += ../ipu.o \
+ ../ipu-bus.o \
+ ../ipu-dma.o \
+ ../ipu-mmu.o \
+ ../ipu-buttress.o \
+ ../ipu-trace.o \
+ ../ipu-cpd.o \
+ ipu6.o \
+ ../ipu-fw-com.o
+
+obj-$(CONFIG_VIDEO_INTEL_IPU6) += intel-ipu6.o
+
+intel-ipu6-isys-objs += ../ipu-isys.o \
+ ../ipu-isys-csi2.o \
+ ipu6-isys.o \
+ ipu6-isys-phy.o \
+ ipu6-isys-csi2.o \
+ ipu6-isys-gpc.o \
+ ../ipu-isys-csi2-be-soc.o \
+ ../ipu-fw-isys.o \
+ ../ipu-isys-video.o \
+ ../ipu-isys-queue.o \
+ ../ipu-isys-subdev.o
+
+obj-$(CONFIG_VIDEO_INTEL_IPU6) += intel-ipu6-isys.o
+
+intel-ipu6-psys-objs += ../ipu-psys.o \
+ ipu6-psys.o \
+ ipu-resources.o \
+ ipu6-psys-gpc.o \
+ ipu6-l-scheduler.o \
+ ipu6-ppg.o
+
+intel-ipu6-psys-objs += ipu-fw-resources.o \
+ ipu6-fw-resources.o \
+ ipu6se-fw-resources.o \
+ ipu6ep-fw-resources.o \
+ ../ipu-fw-psys.o
+
+ifeq ($(CONFIG_COMPAT),y)
+intel-ipu6-psys-objs += ../ipu-psys-compat32.o
+endif
+
+obj-$(CONFIG_VIDEO_INTEL_IPU6) += intel-ipu6-psys.o
+
+ccflags-y += -I$(srcpath)/$(src)/../../../../../include/
+ccflags-y += -I$(srcpath)/$(src)/../
+ccflags-y += -I$(srcpath)/$(src)/
diff --git a/drivers/media/pci/intel/ipu6/ipu-fw-resources.c b/drivers/media/pci/intel/ipu6/ipu-fw-resources.c
new file mode 100644
index 0000000000000..ab663ead07ad2
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu-fw-resources.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2015 - 2019 Intel Corporation
+
+#include <linux/err.h>
+#include <linux/string.h>
+
+#include "ipu-psys.h"
+#include "ipu-fw-psys.h"
+#include "ipu6-platform-resources.h"
+#include "ipu6se-platform-resources.h"
+
+/********** Generic resource handling **********/
+
+/*
+ * Extension library gives byte offsets to its internal structures.
+ * use those offsets to update fields. Without extension lib access
+ * structures directly.
+ */
+const struct ipu6_psys_hw_res_variant *var = &hw_var;
+
+int ipu_fw_psys_set_process_cell_id(struct ipu_fw_psys_process *ptr, u8 index,
+ u8 value)
+{
+ struct ipu_fw_psys_process_group *parent =
+ (struct ipu_fw_psys_process_group *)((char *)ptr +
+ ptr->parent_offset);
+
+ ptr->cells[index] = value;
+ parent->resource_bitmap |= 1 << value;
+
+ return 0;
+}
+
+u8 ipu_fw_psys_get_process_cell_id(struct ipu_fw_psys_process *ptr, u8 index)
+{
+ return ptr->cells[index];
+}
+
+int ipu_fw_psys_clear_process_cell(struct ipu_fw_psys_process *ptr)
+{
+ struct ipu_fw_psys_process_group *parent;
+ u8 cell_id = ipu_fw_psys_get_process_cell_id(ptr, 0);
+ int retval = -1;
+ u8 value;
+
+ parent = (struct ipu_fw_psys_process_group *)((char *)ptr +
+ ptr->parent_offset);
+
+ value = var->cell_num;
+ if ((1 << cell_id) != 0 &&
+ ((1 << cell_id) & parent->resource_bitmap)) {
+ ipu_fw_psys_set_process_cell_id(ptr, 0, value);
+ parent->resource_bitmap &= ~(1 << cell_id);
+ retval = 0;
+ }
+
+ return retval;
+}
+
+int ipu_fw_psys_set_proc_dev_chn(struct ipu_fw_psys_process *ptr, u16 offset,
+ u16 value)
+{
+ if (var->set_proc_dev_chn)
+ return var->set_proc_dev_chn(ptr, offset, value);
+
+ WARN(1, "ipu6 psys res var is not initialised correctly.");
+ return 0;
+}
+
+int ipu_fw_psys_set_proc_dfm_bitmap(struct ipu_fw_psys_process *ptr,
+ u16 id, u32 bitmap,
+ u32 active_bitmap)
+{
+ if (var->set_proc_dfm_bitmap)
+ return var->set_proc_dfm_bitmap(ptr, id, bitmap,
+ active_bitmap);
+
+ WARN(1, "ipu6 psys res var is not initialised correctly.");
+ return 0;
+}
+
+int ipu_fw_psys_set_process_ext_mem(struct ipu_fw_psys_process *ptr,
+ u16 type_id, u16 mem_id, u16 offset)
+{
+ if (var->set_proc_ext_mem)
+ return var->set_proc_ext_mem(ptr, type_id, mem_id, offset);
+
+ WARN(1, "ipu6 psys res var is not initialised correctly.");
+ return 0;
+}
+
+int ipu_fw_psys_get_program_manifest_by_process(
+ struct ipu_fw_generic_program_manifest *gen_pm,
+ const struct ipu_fw_psys_program_group_manifest *pg_manifest,
+ struct ipu_fw_psys_process *process)
+{
+ if (var->get_pgm_by_proc)
+ return var->get_pgm_by_proc(gen_pm, pg_manifest, process);
+
+ WARN(1, "ipu6 psys res var is not initialised correctly.");
+ return 0;
+}
+
diff --git a/drivers/media/pci/intel/ipu6/ipu-platform-buttress-regs.h b/drivers/media/pci/intel/ipu6/ipu-platform-buttress-regs.h
new file mode 100644
index 0000000000000..343d75bd4cc67
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu-platform-buttress-regs.h
@@ -0,0 +1,317 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2020 Intel Corporation */
+
+#ifndef IPU_PLATFORM_BUTTRESS_REGS_H
+#define IPU_PLATFORM_BUTTRESS_REGS_H
+
+/* IS_WORKPOINT_REQ */
+#define IPU_BUTTRESS_REG_IS_FREQ_CTL 0x34
+/* PS_WORKPOINT_REQ */
+#define IPU_BUTTRESS_REG_PS_FREQ_CTL 0x38
+
+#define IPU_BUTTRESS_IS_FREQ_RATIO_MASK 0xff
+#define IPU_BUTTRESS_PS_FREQ_RATIO_MASK 0xff
+
+#define IPU_IS_FREQ_MAX 533
+#define IPU_IS_FREQ_MIN 200
+#define IPU_PS_FREQ_MAX 450
+#define IPU_IS_FREQ_RATIO_BASE 25
+#define IPU_PS_FREQ_RATIO_BASE 25
+#define IPU_BUTTRESS_IS_FREQ_CTL_DIVISOR_MASK 0xff
+#define IPU_BUTTRESS_PS_FREQ_CTL_DIVISOR_MASK 0xff
+
+/* should be tuned for real silicon */
+#define IPU_IS_FREQ_CTL_DEFAULT_RATIO 0x08
+#define IPU6SE_IS_FREQ_CTL_DEFAULT_RATIO 0x0a
+#define IPU_PS_FREQ_CTL_DEFAULT_RATIO 0x10
+
+#define IPU_IS_FREQ_CTL_DEFAULT_QOS_FLOOR_RATIO 0x10
+#define IPU_PS_FREQ_CTL_DEFAULT_QOS_FLOOR_RATIO 0x0708
+
+#define IPU_BUTTRESS_PWR_STATE_IS_PWR_SHIFT 3
+#define IPU_BUTTRESS_PWR_STATE_IS_PWR_MASK \
+ (0x3 << IPU_BUTTRESS_PWR_STATE_IS_PWR_SHIFT)
+
+#define IPU_BUTTRESS_PWR_STATE_PS_PWR_SHIFT 6
+#define IPU_BUTTRESS_PWR_STATE_PS_PWR_MASK \
+ (0x3 << IPU_BUTTRESS_PWR_STATE_PS_PWR_SHIFT)
+
+#define IPU_BUTTRESS_PWR_STATE_DN_DONE 0x0
+#define IPU_BUTTRESS_PWR_STATE_UP_PROCESS 0x1
+#define IPU_BUTTRESS_PWR_STATE_DN_PROCESS 0x2
+#define IPU_BUTTRESS_PWR_STATE_UP_DONE 0x3
+
+#define IPU_BUTTRESS_REG_FPGA_SUPPORT_0 0x270
+#define IPU_BUTTRESS_REG_FPGA_SUPPORT_1 0x274
+#define IPU_BUTTRESS_REG_FPGA_SUPPORT_2 0x278
+#define IPU_BUTTRESS_REG_FPGA_SUPPORT_3 0x27c
+#define IPU_BUTTRESS_REG_FPGA_SUPPORT_4 0x280
+#define IPU_BUTTRESS_REG_FPGA_SUPPORT_5 0x284
+#define IPU_BUTTRESS_REG_FPGA_SUPPORT_6 0x288
+#define IPU_BUTTRESS_REG_FPGA_SUPPORT_7 0x28c
+
+#define BUTTRESS_REG_WDT 0x8
+#define BUTTRESS_REG_BTRS_CTRL 0xc
+#define BUTTRESS_REG_BTRS_CTRL_STALL_MODE_VC0 BIT(0)
+#define BUTTRESS_REG_BTRS_CTRL_STALL_MODE_VC1 BIT(1)
+
+#define BUTTRESS_REG_FW_RESET_CTL 0x30
+#define BUTTRESS_FW_RESET_CTL_START BIT(0)
+#define BUTTRESS_FW_RESET_CTL_DONE BIT(1)
+
+#define BUTTRESS_REG_IS_FREQ_CTL 0x34
+
+#define BUTTRESS_IS_FREQ_CTL_DIVISOR_MASK 0xf
+
+#define BUTTRESS_REG_PS_FREQ_CTL 0x38
+
+#define BUTTRESS_PS_FREQ_CTL_RATIO_MASK 0xff
+
+#define BUTTRESS_FREQ_CTL_START BIT(31)
+#define BUTTRESS_FREQ_CTL_START_SHIFT 31
+#define BUTTRESS_FREQ_CTL_QOS_FLOOR_SHIFT 8
+#define BUTTRESS_FREQ_CTL_ICCMAX_LEVEL (GENMASK(19, 16))
+#define BUTTRESS_FREQ_CTL_QOS_FLOOR_MASK (0xff << 8)
+
+#define BUTTRESS_REG_PWR_STATE 0x5c
+
+#define BUTTRESS_PWR_STATE_IS_PWR_SHIFT 3
+#define BUTTRESS_PWR_STATE_IS_PWR_MASK (0x3 << 3)
+
+#define BUTTRESS_PWR_STATE_PS_PWR_SHIFT 6
+#define BUTTRESS_PWR_STATE_PS_PWR_MASK (0x3 << 6)
+
+#define BUTTRESS_PWR_STATE_RESET 0x0
+#define BUTTRESS_PWR_STATE_PWR_ON_DONE 0x1
+#define BUTTRESS_PWR_STATE_PWR_RDY 0x3
+#define BUTTRESS_PWR_STATE_PWR_IDLE 0x4
+
+#define BUTTRESS_PWR_STATE_HH_STATUS_SHIFT 11
+#define BUTTRESS_PWR_STATE_HH_STATUS_MASK (0x3 << 11)
+
+enum {
+ BUTTRESS_PWR_STATE_HH_STATE_IDLE,
+ BUTTRESS_PWR_STATE_HH_STATE_IN_PRGS,
+ BUTTRESS_PWR_STATE_HH_STATE_DONE,
+ BUTTRESS_PWR_STATE_HH_STATE_ERR,
+};
+
+#define BUTTRESS_PWR_STATE_IS_PWR_FSM_SHIFT 19
+#define BUTTRESS_PWR_STATE_IS_PWR_FSM_MASK (0xf << 19)
+
+#define BUTTRESS_PWR_STATE_IS_PWR_FSM_IDLE 0x0
+#define BUTTRESS_PWR_STATE_IS_PWR_FSM_WAIT_4_PLL_CMP 0x1
+#define BUTTRESS_PWR_STATE_IS_PWR_FSM_WAIT_4_CLKACK 0x2
+#define BUTTRESS_PWR_STATE_IS_PWR_FSM_WAIT_4_PG_ACK 0x3
+#define BUTTRESS_PWR_STATE_IS_PWR_FSM_RST_ASSRT_CYCLES 0x4
+#define BUTTRESS_PWR_STATE_IS_PWR_FSM_STOP_CLK_CYCLES1 0x5
+#define BUTTRESS_PWR_STATE_IS_PWR_FSM_STOP_CLK_CYCLES2 0x6
+#define BUTTRESS_PWR_STATE_IS_PWR_FSM_RST_DEASSRT_CYCLES 0x7
+#define BUTTRESS_PWR_STATE_IS_PWR_FSM_WAIT_4_FUSE_WR_CMP 0x8
+#define BUTTRESS_PWR_STATE_IS_PWR_FSM_BRK_POINT 0x9
+#define BUTTRESS_PWR_STATE_IS_PWR_FSM_IS_RDY 0xa
+#define BUTTRESS_PWR_STATE_IS_PWR_FSM_HALT_HALTED 0xb
+#define BUTTRESS_PWR_STATE_IS_PWR_FSM_RST_DURATION_CNT3 0xc
+#define BUTTRESS_PWR_STATE_IS_PWR_FSM_WAIT_4_CLKACK_PD 0xd
+#define BUTTRESS_PWR_STATE_IS_PWR_FSM_PD_BRK_POINT 0xe
+#define BUTTRESS_PWR_STATE_IS_PWR_FSM_WAIT_4_PD_PG_ACK0 0xf
+
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_SHIFT 24
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_MASK (0x1f << 24)
+
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_IDLE 0x0
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_WAIT_PU_PLL_IP_RDY 0x1
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_WAIT_RO_PRE_CNT_EXH 0x2
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_WAIT_PU_VGI_PWRGOOD 0x3
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_WAIT_RO_POST_CNT_EXH 0x4
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_WR_PLL_RATIO 0x5
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_WAIT_PU_PLL_CMP 0x6
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_WAIT_PU_CLKACK 0x7
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_RST_ASSRT_CYCLES 0x8
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_STOP_CLK_CYCLES1 0x9
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_STOP_CLK_CYCLES2 0xa
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_RST_DEASSRT_CYCLES 0xb
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_PU_BRK_PNT 0xc
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_WAIT_FUSE_ACCPT 0xd
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_PS_PWR_UP 0xf
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_WAIT_4_HALTED 0x10
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_RESET_CNT3 0x11
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_WAIT_PD_CLKACK 0x12
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_WAIT_PD_OFF_IND 0x13
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_WAIT_DVFS_PH4 0x14
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_WAIT_DVFS_PLL_CMP 0x15
+#define BUTTRESS_PWR_STATE_PS_PWR_FSM_WAIT_DVFS_CLKACK 0x16
+
+#define BUTTRESS_REG_SECURITY_CTL 0x300
+
+#define BUTTRESS_SECURITY_CTL_FW_SECURE_MODE BIT(16)
+#define BUTTRESS_SECURITY_CTL_FW_SETUP_SHIFT 0
+#define BUTTRESS_SECURITY_CTL_FW_SETUP_MASK 0x1f
+
+#define BUTTRESS_SECURITY_CTL_FW_SETUP_DONE 0x1
+#define BUTTRESS_SECURITY_CTL_AUTH_DONE 0x2
+#define BUTTRESS_SECURITY_CTL_AUTH_FAILED 0x8
+
+#define BUTTRESS_REG_SENSOR_FREQ_CTL 0x16c
+
+#define BUTTRESS_SENSOR_FREQ_CTL_OSC_OUT_FREQ_DEFAULT(i) \
+ (0x1b << ((i) * 10))
+#define BUTTRESS_SENSOR_FREQ_CTL_OSC_OUT_FREQ_SHIFT(i) ((i) * 10)
+#define BUTTRESS_SENSOR_FREQ_CTL_OSC_OUT_FREQ_MASK(i) \
+ (0x1ff << ((i) * 10))
+
+#define BUTTRESS_SENSOR_CLK_FREQ_6P75MHZ 0x176
+#define BUTTRESS_SENSOR_CLK_FREQ_8MHZ 0x164
+#define BUTTRESS_SENSOR_CLK_FREQ_9P6MHZ 0x2
+#define BUTTRESS_SENSOR_CLK_FREQ_12MHZ 0x1b2
+#define BUTTRESS_SENSOR_CLK_FREQ_13P6MHZ 0x1ac
+#define BUTTRESS_SENSOR_CLK_FREQ_14P4MHZ 0x1cc
+#define BUTTRESS_SENSOR_CLK_FREQ_15P8MHZ 0x1a6
+#define BUTTRESS_SENSOR_CLK_FREQ_16P2MHZ 0xca
+#define BUTTRESS_SENSOR_CLK_FREQ_17P3MHZ 0x12e
+#define BUTTRESS_SENSOR_CLK_FREQ_18P6MHZ 0x1c0
+#define BUTTRESS_SENSOR_CLK_FREQ_19P2MHZ 0x0
+#define BUTTRESS_SENSOR_CLK_FREQ_24MHZ 0xb2
+#define BUTTRESS_SENSOR_CLK_FREQ_26MHZ 0xae
+#define BUTTRESS_SENSOR_CLK_FREQ_27MHZ 0x196
+
+#define BUTTRESS_SENSOR_FREQ_CTL_LJPLL_FB_RATIO_MASK 0xff
+#define BUTTRESS_SENSOR_FREQ_CTL_SEL_MIPICLK_A_SHIFT 8
+#define BUTTRESS_SENSOR_FREQ_CTL_SEL_MIPICLK_A_MASK (0x2 << 8)
+#define BUTTRESS_SENSOR_FREQ_CTL_SEL_MIPICLK_C_SHIFT 10
+#define BUTTRESS_SENSOR_FREQ_CTL_SEL_MIPICLK_C_MASK (0x2 << 10)
+#define BUTTRESS_SENSOR_FREQ_CTL_LJPLL_FORCE_OFF_SHIFT 12
+#define BUTTRESS_SENSOR_FREQ_CTL_LJPLL_REF_RATIO_SHIFT 14
+#define BUTTRESS_SENSOR_FREQ_CTL_LJPLL_REF_RATIO_MASK (0x2 << 14)
+#define BUTTRESS_SENSOR_FREQ_CTL_LJPLL_PVD_RATIO_SHIFT 16
+#define BUTTRESS_SENSOR_FREQ_CTL_LJPLL_PVD_RATIO_MASK (0x2 << 16)
+#define BUTTRESS_SENSOR_FREQ_CTL_LJPLL_OUTPUT_RATIO_SHIFT 18
+#define BUTTRESS_SENSOR_FREQ_CTL_LJPLL_OUTPUT_RATIO_MASK (0x2 << 18)
+#define BUTTRESS_SENSOR_FREQ_CTL_START_SHIFT 31
+
+#define BUTTRESS_REG_SENSOR_CLK_CTL 0x170
+
+/* 0 <= i <= 2 */
+#define BUTTRESS_SENSOR_CLK_CTL_OSC_CLK_OUT_EN_SHIFT(i) ((i) * 2)
+#define BUTTRESS_SENSOR_CLK_CTL_OSC_CLK_OUT_SEL_SHIFT(i) ((i) * 2 + 1)
+
+#define BUTTRESS_REG_FW_SOURCE_BASE_LO 0x78
+#define BUTTRESS_REG_FW_SOURCE_BASE_HI 0x7C
+#define BUTTRESS_REG_FW_SOURCE_SIZE 0x80
+
+#define BUTTRESS_REG_ISR_STATUS 0x90
+#define BUTTRESS_REG_ISR_ENABLED_STATUS 0x94
+#define BUTTRESS_REG_ISR_ENABLE 0x98
+#define BUTTRESS_REG_ISR_CLEAR 0x9C
+
+#define BUTTRESS_ISR_IS_IRQ BIT(0)
+#define BUTTRESS_ISR_PS_IRQ BIT(1)
+#define BUTTRESS_ISR_IPC_EXEC_DONE_BY_CSE BIT(2)
+#define BUTTRESS_ISR_IPC_EXEC_DONE_BY_ISH BIT(3)
+#define BUTTRESS_ISR_IPC_FROM_CSE_IS_WAITING BIT(4)
+#define BUTTRESS_ISR_IPC_FROM_ISH_IS_WAITING BIT(5)
+#define BUTTRESS_ISR_CSE_CSR_SET BIT(6)
+#define BUTTRESS_ISR_ISH_CSR_SET BIT(7)
+#define BUTTRESS_ISR_SPURIOUS_CMP BIT(8)
+#define BUTTRESS_ISR_WATCHDOG_EXPIRED BIT(9)
+#define BUTTRESS_ISR_PUNIT_2_IUNIT_IRQ BIT(10)
+#define BUTTRESS_ISR_SAI_VIOLATION BIT(11)
+#define BUTTRESS_ISR_HW_ASSERTION BIT(12)
+
+#define BUTTRESS_REG_IU2CSEDB0 0x100
+
+#define BUTTRESS_IU2CSEDB0_BUSY BIT(31)
+#define BUTTRESS_IU2CSEDB0_SHORT_FORMAT_SHIFT 27
+#define BUTTRESS_IU2CSEDB0_CLIENT_ID_SHIFT 10
+#define BUTTRESS_IU2CSEDB0_IPC_CLIENT_ID_VAL 2
+
+#define BUTTRESS_REG_IU2CSEDATA0 0x104
+
+#define BUTTRESS_IU2CSEDATA0_IPC_BOOT_LOAD 1
+#define BUTTRESS_IU2CSEDATA0_IPC_AUTH_RUN 2
+#define BUTTRESS_IU2CSEDATA0_IPC_AUTH_REPLACE 3
+#define BUTTRESS_IU2CSEDATA0_IPC_UPDATE_SECURE_TOUCH 16
+
+#define BUTTRESS_CSE2IUDATA0_IPC_BOOT_LOAD_DONE 1
+#define BUTTRESS_CSE2IUDATA0_IPC_AUTH_RUN_DONE 2
+#define BUTTRESS_CSE2IUDATA0_IPC_AUTH_REPLACE_DONE 4
+#define BUTTRESS_CSE2IUDATA0_IPC_UPDATE_SECURE_TOUCH_DONE 16
+
+#define BUTTRESS_REG_IU2CSECSR 0x108
+
+#define BUTTRESS_IU2CSECSR_IPC_PEER_COMP_ACTIONS_RST_PHASE1 BIT(0)
+#define BUTTRESS_IU2CSECSR_IPC_PEER_COMP_ACTIONS_RST_PHASE2 BIT(1)
+#define BUTTRESS_IU2CSECSR_IPC_PEER_QUERIED_IP_COMP_ACTIONS_RST_PHASE BIT(2)
+#define BUTTRESS_IU2CSECSR_IPC_PEER_ASSERTED_REG_VALID_REQ BIT(3)
+#define BUTTRESS_IU2CSECSR_IPC_PEER_ACKED_REG_VALID BIT(4)
+#define BUTTRESS_IU2CSECSR_IPC_PEER_DEASSERTED_REG_VALID_REQ BIT(5)
+
+#define BUTTRESS_REG_CSE2IUDB0 0x304
+#define BUTTRESS_REG_CSE2IUCSR 0x30C
+#define BUTTRESS_REG_CSE2IUDATA0 0x308
+
+/* 0x20 == NACK, 0xf == unknown command */
+#define BUTTRESS_CSE2IUDATA0_IPC_NACK 0xf20
+#define BUTTRESS_CSE2IUDATA0_IPC_NACK_MASK 0xffff
+
+#define BUTTRESS_REG_ISH2IUCSR 0x50
+#define BUTTRESS_REG_ISH2IUDB0 0x54
+#define BUTTRESS_REG_ISH2IUDATA0 0x58
+
+#define BUTTRESS_REG_IU2ISHDB0 0x10C
+#define BUTTRESS_REG_IU2ISHDATA0 0x110
+#define BUTTRESS_REG_IU2ISHDATA1 0x114
+#define BUTTRESS_REG_IU2ISHCSR 0x118
+
+#define BUTTRESS_REG_ISH_START_DETECT 0x198
+#define BUTTRESS_REG_ISH_START_DETECT_MASK 0x19C
+
+#define BUTTRESS_REG_FABRIC_CMD 0x88
+
+#define BUTTRESS_FABRIC_CMD_START_TSC_SYNC BIT(0)
+#define BUTTRESS_FABRIC_CMD_IS_DRAIN BIT(4)
+
+#define BUTTRESS_REG_TSW_CTL 0x120
+#define BUTTRESS_TSW_CTL_SOFT_RESET BIT(8)
+
+#define BUTTRESS_REG_TSC_LO 0x164
+#define BUTTRESS_REG_TSC_HI 0x168
+
+#define BUTTRESS_REG_CSI2_PORT_CONFIG_AB 0x200
+#define BUTTRESS_CSI2_PORT_CONFIG_AB_MUX_MASK 0x1f
+#define BUTTRESS_CSI2_PORT_CONFIG_AB_COMBO_SHIFT_B0 16
+
+#define BUTTRESS_REG_PS_FREQ_CAPABILITIES 0xf7498
+
+#define BUTTRESS_PS_FREQ_CAPABILITIES_LAST_RESOLVED_RATIO_SHIFT 24
+#define BUTTRESS_PS_FREQ_CAPABILITIES_LAST_RESOLVED_RATIO_MASK (0xff << 24)
+#define BUTTRESS_PS_FREQ_CAPABILITIES_MAX_RATIO_SHIFT 16
+#define BUTTRESS_PS_FREQ_CAPABILITIES_MAX_RATIO_MASK (0xff << 16)
+#define BUTTRESS_PS_FREQ_CAPABILITIES_EFFICIENT_RATIO_SHIFT 8
+#define BUTTRESS_PS_FREQ_CAPABILITIES_EFFICIENT_RATIO_MASK (0xff << 8)
+#define BUTTRESS_PS_FREQ_CAPABILITIES_MIN_RATIO_SHIFT 0
+#define BUTTRESS_PS_FREQ_CAPABILITIES_MIN_RATIO_MASK (0xff)
+
+#define BUTTRESS_IRQS (BUTTRESS_ISR_IPC_FROM_CSE_IS_WAITING | \
+ BUTTRESS_ISR_IPC_EXEC_DONE_BY_CSE | \
+ BUTTRESS_ISR_IS_IRQ | \
+ BUTTRESS_ISR_PS_IRQ)
+
+#define IPU6SE_ISYS_PHY_0_BASE 0x10000
+
+/* only use BB0, BB2, BB4, and BB6 on PHY0 */
+#define IPU6SE_ISYS_PHY_BB_NUM 4
+
+/* offset from PHY base */
+#define PHY_CSI_CFG 0xc0
+#define PHY_CSI_RCOMP_CONTROL 0xc8
+#define PHY_CSI_BSCAN_EXCLUDE 0xd8
+
+#define PHY_CPHY_DLL_OVRD(x) (0x100 + 0x100 * (x))
+#define PHY_DPHY_DLL_OVRD(x) (0x14c + 0x100 * (x))
+#define PHY_CPHY_RX_CONTROL1(x) (0x110 + 0x100 * (x))
+#define PHY_CPHY_RX_CONTROL2(x) (0x114 + 0x100 * (x))
+#define PHY_DPHY_CFG(x) (0x148 + 0x100 * (x))
+#define PHY_BB_AFE_CONFIG(x) (0x174 + 0x100 * (x))
+
+#endif /* IPU_PLATFORM_BUTTRESS_REGS_H */
diff --git a/drivers/media/pci/intel/ipu6/ipu-platform-isys-csi2-reg.h b/drivers/media/pci/intel/ipu6/ipu-platform-isys-csi2-reg.h
new file mode 100644
index 0000000000000..80f7ac0b0c7f7
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu-platform-isys-csi2-reg.h
@@ -0,0 +1,277 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2020 Intel Corporation */
+
+#ifndef IPU_PLATFORM_ISYS_CSI2_REG_H
+#define IPU_PLATFORM_ISYS_CSI2_REG_H
+
+#define CSI_REG_BASE 0x220000
+#define CSI_REG_BASE_PORT(id) ((id) * 0x1000)
+
+#define IPU_CSI_PORT_A_ADDR_OFFSET \
+ (CSI_REG_BASE + CSI_REG_BASE_PORT(0))
+#define IPU_CSI_PORT_B_ADDR_OFFSET \
+ (CSI_REG_BASE + CSI_REG_BASE_PORT(1))
+#define IPU_CSI_PORT_C_ADDR_OFFSET \
+ (CSI_REG_BASE + CSI_REG_BASE_PORT(2))
+#define IPU_CSI_PORT_D_ADDR_OFFSET \
+ (CSI_REG_BASE + CSI_REG_BASE_PORT(3))
+#define IPU_CSI_PORT_E_ADDR_OFFSET \
+ (CSI_REG_BASE + CSI_REG_BASE_PORT(4))
+#define IPU_CSI_PORT_F_ADDR_OFFSET \
+ (CSI_REG_BASE + CSI_REG_BASE_PORT(5))
+#define IPU_CSI_PORT_G_ADDR_OFFSET \
+ (CSI_REG_BASE + CSI_REG_BASE_PORT(6))
+#define IPU_CSI_PORT_H_ADDR_OFFSET \
+ (CSI_REG_BASE + CSI_REG_BASE_PORT(7))
+
+/* CSI Port Genral Purpose Registers */
+#define CSI_REG_PORT_GPREG_SRST 0x0
+#define CSI_REG_PORT_GPREG_CSI2_SLV_REG_SRST 0x4
+#define CSI_REG_PORT_GPREG_CSI2_PORT_CONTROL 0x8
+
+/*
+ * Port IRQs mapping events:
+ * IRQ0 - CSI_FE event
+ * IRQ1 - CSI_SYNC
+ * IRQ2 - S2M_SIDS0TO7
+ * IRQ3 - S2M_SIDS8TO15
+ */
+#define CSI_PORT_REG_BASE_IRQ_CSI 0x80
+#define CSI_PORT_REG_BASE_IRQ_CSI_SYNC 0xA0
+#define CSI_PORT_REG_BASE_IRQ_S2M_SIDS0TOS7 0xC0
+#define CSI_PORT_REG_BASE_IRQ_S2M_SIDS8TOS15 0xE0
+
+#define CSI_PORT_REG_BASE_IRQ_EDGE_OFFSET 0x0
+#define CSI_PORT_REG_BASE_IRQ_MASK_OFFSET 0x4
+#define CSI_PORT_REG_BASE_IRQ_STATUS_OFFSET 0x8
+#define CSI_PORT_REG_BASE_IRQ_CLEAR_OFFSET 0xc
+#define CSI_PORT_REG_BASE_IRQ_ENABLE_OFFSET 0x10
+#define CSI_PORT_REG_BASE_IRQ_LEVEL_NOT_PULSE_OFFSET 0x14
+
+#define IPU6SE_CSI_RX_ERROR_IRQ_MASK 0x7ffff
+#define IPU6_CSI_RX_ERROR_IRQ_MASK 0xfffff
+
+#define CSI_RX_NUM_ERRORS_IN_IRQ 20
+#define CSI_RX_NUM_IRQ 32
+
+#define IPU_CSI_RX_IRQ_FS_VC 1
+#define IPU_CSI_RX_IRQ_FE_VC 2
+
+/* PPI2CSI */
+#define CSI_REG_PPI2CSI_ENABLE 0x200
+#define CSI_REG_PPI2CSI_CONFIG_PPI_INTF 0x204
+#define PPI_INTF_CONFIG_NOF_ENABLED_DATALANES_SHIFT 3
+#define PPI_INTF_CONFIG_RX_AUTO_CLKGATING_SHIFT 5
+#define CSI_REG_PPI2CSI_CONFIG_CSI_FEATURE 0x208
+
+enum CSI_PPI2CSI_CTRL {
+ CSI_PPI2CSI_DISABLE = 0,
+ CSI_PPI2CSI_ENABLE = 1,
+};
+
+/* CSI_FE */
+#define CSI_REG_CSI_FE_ENABLE 0x280
+#define CSI_REG_CSI_FE_MODE 0x284
+#define CSI_REG_CSI_FE_MUX_CTRL 0x288
+#define CSI_REG_CSI_FE_SYNC_CNTR_SEL 0x290
+
+enum CSI_FE_ENABLE_TYPE {
+ CSI_FE_DISABLE = 0,
+ CSI_FE_ENABLE = 1,
+};
+
+enum CSI_FE_MODE_TYPE {
+ CSI_FE_DPHY_MODE = 0,
+ CSI_FE_CPHY_MODE = 1,
+};
+
+enum CSI_FE_INPUT_SELECTOR {
+ CSI_SENSOR_INPUT = 0,
+ CSI_MIPIGEN_INPUT = 1,
+};
+
+enum CSI_FE_SYNC_CNTR_SEL_TYPE {
+ CSI_CNTR_SENSOR_LINE_ID = (1 << 0),
+ CSI_CNTR_INT_LINE_PKT_ID = ~CSI_CNTR_SENSOR_LINE_ID,
+ CSI_CNTR_SENSOR_FRAME_ID = (1 << 1),
+ CSI_CNTR_INT_FRAME_PKT_ID = ~CSI_CNTR_SENSOR_FRAME_ID,
+};
+
+/* MIPI_PKT_GEN */
+#define CSI_REG_PIXGEN_COM_BASE_OFFSET 0x300
+
+#define IPU_CSI_PORT_A_PIXGEN_ADDR_OFFSET \
+ (CSI_REG_BASE + CSI_REG_BASE_PORT(0) + CSI_REG_PIXGEN_COM_BASE_OFFSET)
+#define IPU_CSI_PORT_B_PIXGEN_ADDR_OFFSET \
+ (CSI_REG_BASE + CSI_REG_BASE_PORT(1) + CSI_REG_PIXGEN_COM_BASE_OFFSET)
+#define IPU_CSI_PORT_C_PIXGEN_ADDR_OFFSET \
+ (CSI_REG_BASE + CSI_REG_BASE_PORT(2) + CSI_REG_PIXGEN_COM_BASE_OFFSET)
+#define IPU_CSI_PORT_D_PIXGEN_ADDR_OFFSET \
+ (CSI_REG_BASE + CSI_REG_BASE_PORT(3) + CSI_REG_PIXGEN_COM_BASE_OFFSET)
+#define IPU_CSI_PORT_E_PIXGEN_ADDR_OFFSET \
+ (CSI_REG_BASE + CSI_REG_BASE_PORT(4) + CSI_REG_PIXGEN_COM_BASE_OFFSET)
+#define IPU_CSI_PORT_F_PIXGEN_ADDR_OFFSET \
+ (CSI_REG_BASE + CSI_REG_BASE_PORT(5) + CSI_REG_PIXGEN_COM_BASE_OFFSET)
+#define IPU_CSI_PORT_G_PIXGEN_ADDR_OFFSET \
+ (CSI_REG_BASE + CSI_REG_BASE_PORT(6) + CSI_REG_PIXGEN_COM_BASE_OFFSET)
+#define IPU_CSI_PORT_H_PIXGEN_ADDR_OFFSET \
+ (CSI_REG_BASE + CSI_REG_BASE_PORT(7) + CSI_REG_PIXGEN_COM_BASE_OFFSET)
+
+#define CSI_REG_PIXGEN_COM_ENABLE_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x300)
+#define CSI_REG_PIXGEN_COM_DTYPE_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x304)
+#define CSI_REG_PIXGEN_COM_VTYPE_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x308)
+#define CSI_REG_PIXGEN_COM_VCHAN_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x30C)
+#define CSI_REG_PIXGEN_COM_WCOUNT_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x310)
+/* PRBS */
+#define CSI_REG_PIXGEN_PRBS_RSTVAL_REG0_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x314)
+#define CSI_REG_PIXGEN_PRBS_RSTVAL_REG1_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x318)
+/* SYNC_GENERATOR_CONFIG */
+#define CSI_REG_PIXGEN_SYNG_FREE_RUN_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x31C)
+#define CSI_REG_PIXGEN_SYNG_PAUSE_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x320)
+#define CSI_REG_PIXGEN_SYNG_NOF_FRAME_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x324)
+#define CSI_REG_PIXGEN_SYNG_NOF_PIXEL_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x328)
+#define CSI_REG_PIXGEN_SYNG_NOF_LINE_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x32C)
+#define CSI_REG_PIXGEN_SYNG_HBLANK_CYC_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x330)
+#define CSI_REG_PIXGEN_SYNG_VBLANK_CYC_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x334)
+#define CSI_REG_PIXGEN_SYNG_STAT_HCNT_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x338)
+#define CSI_REG_PIXGEN_SYNG_STAT_VCNT_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x33C)
+#define CSI_REG_PIXGEN_SYNG_STAT_FCNT_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x340)
+#define CSI_REG_PIXGEN_SYNG_STAT_DONE_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x344)
+/* TPG */
+#define CSI_REG_PIXGEN_TPG_MODE_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x348)
+/* TPG: mask_cfg */
+#define CSI_REG_PIXGEN_TPG_HCNT_MASK_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x34C)
+#define CSI_REG_PIXGEN_TPG_VCNT_MASK_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x350)
+#define CSI_REG_PIXGEN_TPG_XYCNT_MASK_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x354)
+/* TPG: delta_cfg */
+#define CSI_REG_PIXGEN_TPG_HCNT_DELTA_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x358)
+#define CSI_REG_PIXGEN_TPG_VCNT_DELTA_REG_IDX(id) \
+ (CSI_REG_BASE_PORT(id) + 0x35C)
+/* TPG: color_cfg */
+#define CSI_REG_PIXGEN_TPG_R1_REG_IDX(id) (CSI_REG_BASE_PORT(id) + 0x360)
+#define CSI_REG_PIXGEN_TPG_G1_REG_IDX(id) (CSI_REG_BASE_PORT(id) + 0x364)
+#define CSI_REG_PIXGEN_TPG_B1_REG_IDX(id) (CSI_REG_BASE_PORT(id) + 0x368)
+#define CSI_REG_PIXGEN_TPG_R2_REG_IDX(id) (CSI_REG_BASE_PORT(id) + 0x36C)
+#define CSI_REG_PIXGEN_TPG_G2_REG_IDX(id) (CSI_REG_BASE_PORT(id) + 0x370)
+#define CSI_REG_PIXGEN_TPG_B2_REG_IDX(id) (CSI_REG_BASE_PORT(id) + 0x374)
+
+#define CSI_REG_PIXGEN_PRBS_RSTVAL_REG0 CSI_REG_PIXGEN_PRBS_RSTVAL_REG0_IDX(0)
+#define CSI_REG_PIXGEN_PRBS_RSTVAL_REG1 CSI_REG_PIXGEN_PRBS_RSTVAL_REG1_IDX(0)
+#define CSI_REG_PIXGEN_COM_ENABLE_REG CSI_REG_PIXGEN_COM_ENABLE_REG_IDX(0)
+#define CSI_REG_PIXGEN_TPG_MODE_REG CSI_REG_PIXGEN_TPG_MODE_REG_IDX(0)
+#define CSI_REG_PIXGEN_TPG_R1_REG CSI_REG_PIXGEN_TPG_R1_REG_IDX(0)
+#define CSI_REG_PIXGEN_TPG_G1_REG CSI_REG_PIXGEN_TPG_G1_REG_IDX(0)
+#define CSI_REG_PIXGEN_TPG_B1_REG CSI_REG_PIXGEN_TPG_B1_REG_IDX(0)
+#define CSI_REG_PIXGEN_TPG_R2_REG CSI_REG_PIXGEN_TPG_R2_REG_IDX(0)
+#define CSI_REG_PIXGEN_TPG_G2_REG CSI_REG_PIXGEN_TPG_G2_REG_IDX(0)
+#define CSI_REG_PIXGEN_TPG_B2_REG CSI_REG_PIXGEN_TPG_B2_REG_IDX(0)
+#define CSI_REG_PIXGEN_TPG_HCNT_MASK_REG CSI_REG_PIXGEN_TPG_HCNT_MASK_REG_IDX(0)
+#define CSI_REG_PIXGEN_TPG_VCNT_MASK_REG CSI_REG_PIXGEN_TPG_VCNT_MASK_REG_IDX(0)
+#define CSI_REG_PIXGEN_TPG_XYCNT_MASK_REG \
+ CSI_REG_PIXGEN_TPG_XYCNT_MASK_REG_IDX(0)
+
+#define CSI_REG_PIXGEN_SYNG_NOF_FRAME_REG \
+ CSI_REG_PIXGEN_SYNG_NOF_FRAME_REG_IDX(0)
+#define CSI_REG_PIXGEN_SYNG_NOF_LINE_REG \
+ CSI_REG_PIXGEN_SYNG_NOF_LINE_REG_IDX(0)
+#define CSI_REG_PIXGEN_SYNG_HBLANK_CYC_REG \
+ CSI_REG_PIXGEN_SYNG_HBLANK_CYC_REG_IDX(0)
+#define CSI_REG_PIXGEN_SYNG_VBLANK_CYC_REG \
+ CSI_REG_PIXGEN_SYNG_VBLANK_CYC_REG_IDX(0)
+#define CSI_REG_PIXGEN_SYNG_NOF_PIXEL_REG \
+ CSI_REG_PIXGEN_SYNG_NOF_PIXEL_REG_IDX(0)
+#define CSI_REG_PIXGEN_COM_WCOUNT_REG CSI_REG_PIXGEN_COM_WCOUNT_REG_IDX(0)
+#define CSI_REG_PIXGEN_COM_DTYPE_REG CSI_REG_PIXGEN_COM_DTYPE_REG_IDX(0)
+#define CSI_REG_PIXGEN_COM_VTYPE_REG CSI_REG_PIXGEN_COM_VTYPE_REG_IDX(0)
+#define CSI_REG_PIXGEN_COM_VCHAN_REG CSI_REG_PIXGEN_COM_VCHAN_REG_IDX(0)
+#define CSI_REG_PIXGEN_TPG_HCNT_DELTA_REG \
+ CSI_REG_PIXGEN_TPG_HCNT_DELTA_REG_IDX(0)
+#define CSI_REG_PIXGEN_TPG_VCNT_DELTA_REG \
+ CSI_REG_PIXGEN_TPG_VCNT_DELTA_REG_IDX(0)
+
+/* CSI HUB General Purpose Registers */
+#define CSI_REG_HUB_GPREG_SRST (CSI_REG_BASE + 0x18000)
+#define CSI_REG_HUB_GPREG_SLV_REG_SRST (CSI_REG_BASE + 0x18004)
+#define CSI_REG_HUB_GPREG_PHY_CONTROL(id) \
+ (CSI_REG_BASE + 0x18008 + (id) * 0x8)
+#define CSI_REG_HUB_GPREG_PHY_CONTROL_RESET BIT(4)
+#define CSI_REG_HUB_GPREG_PHY_CONTROL_PWR_EN BIT(0)
+#define CSI_REG_HUB_GPREG_PHY_STATUS(id) \
+ (CSI_REG_BASE + 0x1800c + (id) * 0x8)
+#define CSI_REG_HUB_GPREG_PHY_STATUS_POWER_ACK BIT(0)
+#define CSI_REG_HUB_GPREG_PHY_STATUS_PHY_READY BIT(4)
+
+#define CSI_REG_HUB_DRV_ACCESS_PORT(id) (CSI_REG_BASE + 0x18018 + (id) * 4)
+#define CSI_REG_HUB_FW_ACCESS_PORT(id) (CSI_REG_BASE + 0x17000 + (id) * 4)
+
+enum CSI_PORT_CLK_GATING_SWITCH {
+ CSI_PORT_CLK_GATING_OFF = 0,
+ CSI_PORT_CLK_GATING_ON = 1,
+};
+
+#define CSI_REG_BASE_HUB_IRQ 0x18200
+
+#define IPU_NUM_OF_DLANE_REG_PORT0 2
+#define IPU_NUM_OF_DLANE_REG_PORT1 4
+#define IPU_NUM_OF_DLANE_REG_PORT2 4
+#define IPU_NUM_OF_DLANE_REG_PORT3 2
+#define IPU_NUM_OF_DLANE_REG_PORT4 2
+#define IPU_NUM_OF_DLANE_REG_PORT5 4
+#define IPU_NUM_OF_DLANE_REG_PORT6 4
+#define IPU_NUM_OF_DLANE_REG_PORT7 2
+
+/* ipu6se support 2 SIPs, 2 port per SIP, 4 ports 0..3
+ * sip0 - 0, 1
+ * sip1 - 2, 3
+ * 0 and 2 support 4 data lanes, 1 and 3 support 2 data lanes
+ * all offset are base from isys base address
+ */
+
+#define CSI2_HUB_GPREG_SIP_SRST(sip) (0x238038 + (sip) * 4)
+#define CSI2_HUB_GPREG_SIP_FB_PORT_CFG(sip) (0x238050 + (sip) * 4)
+
+#define CSI2_HUB_GPREG_DPHY_TIMER_INCR (0x238040)
+#define CSI2_HUB_GPREG_HPLL_FREQ (0x238044)
+#define CSI2_HUB_GPREG_IS_CLK_RATIO (0x238048)
+#define CSI2_HUB_GPREG_HPLL_FREQ_ISCLK_RATE_OVERRIDE (0x23804c)
+#define CSI2_HUB_GPREG_PORT_CLKGATING_DISABLE (0x238058)
+#define CSI2_HUB_GPREG_SIP0_CSI_RX_A_CONTROL (0x23805c)
+#define CSI2_HUB_GPREG_SIP0_CSI_RX_B_CONTROL (0x238088)
+#define CSI2_HUB_GPREG_SIP1_CSI_RX_A_CONTROL (0x2380a4)
+#define CSI2_HUB_GPREG_SIP1_CSI_RX_B_CONTROL (0x2380d0)
+
+#define CSI2_SIP_TOP_CSI_RX_BASE(sip) (0x23805c + (sip) * 0x48)
+#define CSI2_SIP_TOP_CSI_RX_PORT_BASE_0(port) (0x23805c + ((port) / 2) * 0x48)
+#define CSI2_SIP_TOP_CSI_RX_PORT_BASE_1(port) (0x238088 + ((port) / 2) * 0x48)
+
+/* offset from port base */
+#define CSI2_SIP_TOP_CSI_RX_PORT_CONTROL (0x0)
+#define CSI2_SIP_TOP_CSI_RX_DLY_CNT_TERMEN_CLANE (0x4)
+#define CSI2_SIP_TOP_CSI_RX_DLY_CNT_SETTLE_CLANE (0x8)
+#define CSI2_SIP_TOP_CSI_RX_DLY_CNT_TERMEN_DLANE(lane) (0xc + (lane) * 8)
+#define CSI2_SIP_TOP_CSI_RX_DLY_CNT_SETTLE_DLANE(lane) (0x10 + (lane) * 8)
+
+#endif /* IPU6_ISYS_CSI2_REG_H */
diff --git a/drivers/media/pci/intel/ipu6/ipu-platform-isys.h b/drivers/media/pci/intel/ipu6/ipu-platform-isys.h
new file mode 100644
index 0000000000000..82ca971cd9963
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu-platform-isys.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2020 Intel Corporation */
+
+#ifndef IPU_PLATFORM_ISYS_H
+#define IPU_PLATFORM_ISYS_H
+
+#define IPU_ISYS_ENTITY_PREFIX "Intel IPU6"
+
+/*
+ * FW support max 16 streams
+ */
+#define IPU_ISYS_MAX_STREAMS 16
+
+#define ISYS_UNISPART_IRQS (IPU_ISYS_UNISPART_IRQ_SW | \
+ IPU_ISYS_UNISPART_IRQ_CSI0 | \
+ IPU_ISYS_UNISPART_IRQ_CSI1)
+
+/* IPU6 ISYS compression alignment */
+#define IPU_ISYS_COMPRESSION_LINE_ALIGN 512
+#define IPU_ISYS_COMPRESSION_HEIGHT_ALIGN 1
+#define IPU_ISYS_COMPRESSION_TILE_SIZE_BYTES 512
+#define IPU_ISYS_COMPRESSION_PAGE_ALIGN 0x1000
+#define IPU_ISYS_COMPRESSION_TILE_STATUS_BITS 4
+#define IPU_ISYS_COMPRESSION_MAX 3
+
+#endif
diff --git a/drivers/media/pci/intel/ipu6/ipu-platform-psys.h b/drivers/media/pci/intel/ipu6/ipu-platform-psys.h
new file mode 100644
index 0000000000000..e44eaf3b580f3
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu-platform-psys.h
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2020 Intel Corporation */
+
+#ifndef IPU_PLATFORM_PSYS_H
+#define IPU_PLATFORM_PSYS_H
+
+#include "ipu-psys.h"
+#include <uapi/linux/ipu-psys.h>
+
+#define IPU_PSYS_BUF_SET_POOL_SIZE 8
+#define IPU_PSYS_BUF_SET_MAX_SIZE 1024
+
+struct ipu_fw_psys_buffer_set;
+
+enum ipu_psys_cmd_state {
+ KCMD_STATE_PPG_NEW,
+ KCMD_STATE_PPG_START,
+ KCMD_STATE_PPG_ENQUEUE,
+ KCMD_STATE_PPG_STOP,
+ KCMD_STATE_PPG_COMPLETE
+};
+
+struct ipu_psys_scheduler {
+ struct list_head ppgs;
+ struct mutex bs_mutex; /* Protects buf_set field */
+ struct list_head buf_sets;
+};
+
+enum ipu_psys_ppg_state {
+ PPG_STATE_START = (1 << 0),
+ PPG_STATE_STARTING = (1 << 1),
+ PPG_STATE_STARTED = (1 << 2),
+ PPG_STATE_RUNNING = (1 << 3),
+ PPG_STATE_SUSPEND = (1 << 4),
+ PPG_STATE_SUSPENDING = (1 << 5),
+ PPG_STATE_SUSPENDED = (1 << 6),
+ PPG_STATE_RESUME = (1 << 7),
+ PPG_STATE_RESUMING = (1 << 8),
+ PPG_STATE_RESUMED = (1 << 9),
+ PPG_STATE_STOP = (1 << 10),
+ PPG_STATE_STOPPING = (1 << 11),
+ PPG_STATE_STOPPED = (1 << 12),
+};
+
+struct ipu_psys_ppg {
+ struct ipu_psys_pg *kpg;
+ struct ipu_psys_fh *fh;
+ struct list_head list;
+ struct list_head sched_list;
+ u64 token;
+ void *manifest;
+ struct mutex mutex; /* Protects kcmd and ppg state field */
+ struct list_head kcmds_new_list;
+ struct list_head kcmds_processing_list;
+ struct list_head kcmds_finished_list;
+ enum ipu_psys_ppg_state state;
+ u32 pri_base;
+ int pri_dynamic;
+};
+
+struct ipu_psys_buffer_set {
+ struct list_head list;
+ struct ipu_fw_psys_buffer_set *buf_set;
+ size_t size;
+ size_t buf_set_size;
+ dma_addr_t dma_addr;
+ void *kaddr;
+ struct ipu_psys_kcmd *kcmd;
+};
+
+int ipu_psys_kcmd_start(struct ipu_psys *psys, struct ipu_psys_kcmd *kcmd);
+void ipu_psys_kcmd_complete(struct ipu_psys_ppg *kppg,
+ struct ipu_psys_kcmd *kcmd,
+ int error);
+int ipu_psys_fh_init(struct ipu_psys_fh *fh);
+int ipu_psys_fh_deinit(struct ipu_psys_fh *fh);
+
+#endif /* IPU_PLATFORM_PSYS_H */
diff --git a/drivers/media/pci/intel/ipu6/ipu-platform-regs.h b/drivers/media/pci/intel/ipu6/ipu-platform-regs.h
new file mode 100644
index 0000000000000..be6c7f298e6db
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu-platform-regs.h
@@ -0,0 +1,333 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2018 - 2020 Intel Corporation */
+
+#ifndef IPU_PLATFORM_REGS_H
+#define IPU_PLATFORM_REGS_H
+
+/*
+ * IPU6 uses uniform address within IPU, therefore all subsystem registers
+ * locates in one signle space starts from 0 but in different sctions with
+ * different addresses, the subsystem offsets are defined to 0 as the
+ * register definition will have the address offset to 0.
+ */
+#define IPU_UNIFIED_OFFSET 0
+
+#define IPU_ISYS_IOMMU0_OFFSET 0x2E0000
+#define IPU_ISYS_IOMMU1_OFFSET 0x2E0500
+#define IPU_ISYS_IOMMUI_OFFSET 0x2E0A00
+
+#define IPU_PSYS_IOMMU0_OFFSET 0x1B0000
+#define IPU_PSYS_IOMMU1_OFFSET 0x1B0700
+#define IPU_PSYS_IOMMU1R_OFFSET 0x1B0E00
+#define IPU_PSYS_IOMMUI_OFFSET 0x1B1500
+
+/* the offset from IOMMU base register */
+#define IPU_MMU_L1_STREAM_ID_REG_OFFSET 0x0c
+#define IPU_MMU_L2_STREAM_ID_REG_OFFSET 0x4c
+#define IPU_PSYS_MMU1W_L2_STREAM_ID_REG_OFFSET 0x8c
+
+#define IPU_MMU_INFO_OFFSET 0x8
+
+#define IPU_ISYS_SPC_OFFSET 0x210000
+
+#define IPU6SE_PSYS_SPC_OFFSET 0x110000
+#define IPU6_PSYS_SPC_OFFSET 0x118000
+
+#define IPU_ISYS_DMEM_OFFSET 0x200000
+#define IPU_PSYS_DMEM_OFFSET 0x100000
+
+#define IPU_REG_ISYS_CSI_TOP_CTRL0_IRQ_EDGE 0x238200
+#define IPU_REG_ISYS_CSI_TOP_CTRL0_IRQ_MASK 0x238204
+#define IPU_REG_ISYS_CSI_TOP_CTRL0_IRQ_STATUS 0x238208
+#define IPU_REG_ISYS_CSI_TOP_CTRL0_IRQ_CLEAR 0x23820c
+#define IPU_REG_ISYS_CSI_TOP_CTRL0_IRQ_ENABLE 0x238210
+#define IPU_REG_ISYS_CSI_TOP_CTRL0_IRQ_LEVEL_NOT_PULSE 0x238214
+
+#define IPU_REG_ISYS_CSI_TOP_CTRL1_IRQ_EDGE 0x238220
+#define IPU_REG_ISYS_CSI_TOP_CTRL1_IRQ_MASK 0x238224
+#define IPU_REG_ISYS_CSI_TOP_CTRL1_IRQ_STATUS 0x238228
+#define IPU_REG_ISYS_CSI_TOP_CTRL1_IRQ_CLEAR 0x23822c
+#define IPU_REG_ISYS_CSI_TOP_CTRL1_IRQ_ENABLE 0x238230
+#define IPU_REG_ISYS_CSI_TOP_CTRL1_IRQ_LEVEL_NOT_PULSE 0x238234
+
+#define IPU_REG_ISYS_UNISPART_IRQ_EDGE 0x27c000
+#define IPU_REG_ISYS_UNISPART_IRQ_MASK 0x27c004
+#define IPU_REG_ISYS_UNISPART_IRQ_STATUS 0x27c008
+#define IPU_REG_ISYS_UNISPART_IRQ_CLEAR 0x27c00c
+#define IPU_REG_ISYS_UNISPART_IRQ_ENABLE 0x27c010
+#define IPU_REG_ISYS_UNISPART_IRQ_LEVEL_NOT_PULSE 0x27c014
+#define IPU_REG_ISYS_UNISPART_SW_IRQ_REG 0x27c414
+#define IPU_REG_ISYS_UNISPART_SW_IRQ_MUX_REG 0x27c418
+#define IPU_ISYS_UNISPART_IRQ_CSI0 BIT(2)
+#define IPU_ISYS_UNISPART_IRQ_CSI1 BIT(3)
+#define IPU_ISYS_UNISPART_IRQ_SW BIT(22)
+
+#define IPU_REG_ISYS_ISL_TOP_IRQ_EDGE 0x2b0200
+#define IPU_REG_ISYS_ISL_TOP_IRQ_MASK 0x2b0204
+#define IPU_REG_ISYS_ISL_TOP_IRQ_STATUS 0x2b0208
+#define IPU_REG_ISYS_ISL_TOP_IRQ_CLEAR 0x2b020c
+#define IPU_REG_ISYS_ISL_TOP_IRQ_ENABLE 0x2b0210
+#define IPU_REG_ISYS_ISL_TOP_IRQ_LEVEL_NOT_PULSE 0x2b0214
+
+#define IPU_REG_ISYS_CMPR_TOP_IRQ_EDGE 0x2d2100
+#define IPU_REG_ISYS_CMPR_TOP_IRQ_MASK 0x2d2104
+#define IPU_REG_ISYS_CMPR_TOP_IRQ_STATUS 0x2d2108
+#define IPU_REG_ISYS_CMPR_TOP_IRQ_CLEAR 0x2d210c
+#define IPU_REG_ISYS_CMPR_TOP_IRQ_ENABLE 0x2d2110
+#define IPU_REG_ISYS_CMPR_TOP_IRQ_LEVEL_NOT_PULSE 0x2d2114
+
+/* CDC Burst collector thresholds for isys - 3 FIFOs i = 0..2 */
+#define IPU_REG_ISYS_CDC_THRESHOLD(i) (0x27c400 + ((i) * 4))
+
+#define IPU_ISYS_CSI_PHY_NUM 2
+#define IPU_CSI_IRQ_NUM_PER_PIPE 4
+#define IPU6SE_ISYS_CSI_PORT_NUM 4
+#define IPU6_ISYS_CSI_PORT_NUM 8
+
+#define IPU_ISYS_CSI_PORT_IRQ(irq_num) (1 << (irq_num))
+
+/* PSYS Info bits*/
+#define IPU_REG_PSYS_INFO_SEG_CMEM_MASTER(a) (0x2C + ((a) * 12))
+#define IPU_REG_PSYS_INFO_SEG_XMEM_MASTER(a) (0x5C + ((a) * 12))
+
+/* PKG DIR OFFSET in IMR in secure mode */
+#define IPU_PKG_DIR_IMR_OFFSET 0x40
+
+#define IPU_ISYS_REG_SPC_STATUS_CTRL 0x0
+
+#define IPU_ISYS_SPC_STATUS_START BIT(1)
+#define IPU_ISYS_SPC_STATUS_RUN BIT(3)
+#define IPU_ISYS_SPC_STATUS_READY BIT(5)
+#define IPU_ISYS_SPC_STATUS_CTRL_ICACHE_INVALIDATE BIT(12)
+#define IPU_ISYS_SPC_STATUS_ICACHE_PREFETCH BIT(13)
+
+#define IPU_PSYS_REG_SPC_STATUS_CTRL 0x0
+#define IPU_PSYS_REG_SPC_START_PC 0x4
+#define IPU_PSYS_REG_SPC_ICACHE_BASE 0x10
+#define IPU_REG_PSYS_INFO_SEG_0_CONFIG_ICACHE_MASTER 0x14
+
+#define IPU_PSYS_SPC_STATUS_START BIT(1)
+#define IPU_PSYS_SPC_STATUS_RUN BIT(3)
+#define IPU_PSYS_SPC_STATUS_READY BIT(5)
+#define IPU_PSYS_SPC_STATUS_CTRL_ICACHE_INVALIDATE BIT(12)
+#define IPU_PSYS_SPC_STATUS_ICACHE_PREFETCH BIT(13)
+
+#define IPU_PSYS_REG_SPP0_STATUS_CTRL 0x20000
+
+#define IPU_INFO_ENABLE_SNOOP BIT(0)
+#define IPU_INFO_DEC_FORCE_FLUSH BIT(1)
+#define IPU_INFO_DEC_PASS_THRU BIT(2)
+#define IPU_INFO_ZLW BIT(3)
+#define IPU_INFO_STREAM_ID_SET(id) (((id) & 0x1F) << 4)
+#define IPU_INFO_REQUEST_DESTINATION_IOSF BIT(9)
+#define IPU_INFO_IMR_BASE BIT(10)
+#define IPU_INFO_IMR_DESTINED BIT(11)
+
+#define IPU_INFO_REQUEST_DESTINATION_PRIMARY IPU_INFO_REQUEST_DESTINATION_IOSF
+
+/* Trace unit related register definitions */
+#define TRACE_REG_MAX_ISYS_OFFSET 0xfffff
+#define TRACE_REG_MAX_PSYS_OFFSET 0xfffff
+#define IPU_ISYS_OFFSET IPU_ISYS_DMEM_OFFSET
+#define IPU_PSYS_OFFSET IPU_PSYS_DMEM_OFFSET
+/* ISYS trace unit registers */
+/* Trace unit base offset */
+#define IPU_TRACE_REG_IS_TRACE_UNIT_BASE 0x27d000
+/* Trace monitors */
+#define IPU_TRACE_REG_IS_SP_EVQ_BASE 0x211000
+/* GPC blocks */
+#define IPU_TRACE_REG_IS_SP_GPC_BASE 0x210800
+#define IPU_TRACE_REG_IS_ISL_GPC_BASE 0x2b0a00
+#define IPU_TRACE_REG_IS_MMU_GPC_BASE 0x2e0f00
+/* each CSI2 port has a dedicated trace monitor, index 0..7 */
+#define IPU_TRACE_REG_CSI2_TM_BASE(port) (0x220400 + 0x1000 * (port))
+
+/* Trace timers */
+#define IPU_TRACE_REG_IS_GPREG_TRACE_TIMER_RST_N 0x27c410
+#define TRACE_REG_GPREG_TRACE_TIMER_RST_OFF BIT(0)
+
+/* SIG2CIO */
+#define IPU_TRACE_REG_CSI2_PORT_SIG2SIO_GR_BASE(port) \
+ (0x220e00 + (port) * 0x1000)
+
+/* PSYS trace unit registers */
+/* Trace unit base offset */
+#define IPU_TRACE_REG_PS_TRACE_UNIT_BASE 0x1b4000
+/* Trace monitors */
+#define IPU_TRACE_REG_PS_SPC_EVQ_BASE 0x119000
+#define IPU_TRACE_REG_PS_SPP0_EVQ_BASE 0x139000
+
+/* GPC blocks */
+#define IPU_TRACE_REG_PS_SPC_GPC_BASE 0x118800
+#define IPU_TRACE_REG_PS_SPP0_GPC_BASE 0x138800
+#define IPU_TRACE_REG_PS_MMU_GPC_BASE 0x1b1b00
+
+/* Trace timers */
+#define IPU_TRACE_REG_PS_GPREG_TRACE_TIMER_RST_N 0x1aa714
+
+/*
+ * s2m_pixel_soc_pixel_remapping is dedicated for the enableing of the
+ * pixel s2m remp ability.Remap here means that s2m rearange the order
+ * of the pixels in each 4 pixels group.
+ * For examle, mirroring remping means that if input's 4 first pixels
+ * are 1 2 3 4 then in output we should see 4 3 2 1 in this 4 first pixels.
+ * 0xE4 is from s2m MAS document. It means no remaping.
+ */
+#define S2M_PIXEL_SOC_PIXEL_REMAPPING_FLAG_NO_REMAPPING 0xE4
+/*
+ * csi_be_soc_pixel_remapping is for the enabling of the csi\mipi be pixel
+ * remapping feature. This remapping is exactly like the stream2mmio remapping.
+ */
+#define CSI_BE_SOC_PIXEL_REMAPPING_FLAG_NO_REMAPPING 0xE4
+
+#define IPU_REG_DMA_TOP_AB_GROUP1_BASE_ADDR 0x1AE000
+#define IPU_REG_DMA_TOP_AB_GROUP2_BASE_ADDR 0x1AF000
+#define IPU_REG_DMA_TOP_AB_RING_MIN_OFFSET(n) (0x4 + (n) * 0xC)
+#define IPU_REG_DMA_TOP_AB_RING_MAX_OFFSET(n) (0x8 + (n) * 0xC)
+#define IPU_REG_DMA_TOP_AB_RING_ACCESS_OFFSET(n) (0xC + (n) * 0xC)
+
+enum ipu_device_ab_group1_target_id {
+ IPU_DEVICE_AB_GROUP1_TARGET_ID_R0_SPC_DMEM,
+ IPU_DEVICE_AB_GROUP1_TARGET_ID_R1_SPC_DMEM,
+ IPU_DEVICE_AB_GROUP1_TARGET_ID_R2_SPC_DMEM,
+ IPU_DEVICE_AB_GROUP1_TARGET_ID_R3_SPC_STATUS_REG,
+ IPU_DEVICE_AB_GROUP1_TARGET_ID_R4_SPC_MASTER_BASE_ADDR,
+ IPU_DEVICE_AB_GROUP1_TARGET_ID_R5_SPC_PC_STALL,
+ IPU_DEVICE_AB_GROUP1_TARGET_ID_R6_SPC_EQ,
+ IPU_DEVICE_AB_GROUP1_TARGET_ID_R7_SPC_RESERVED,
+ IPU_DEVICE_AB_GROUP1_TARGET_ID_R8_SPC_RESERVED,
+ IPU_DEVICE_AB_GROUP1_TARGET_ID_R9_SPP0,
+ IPU_DEVICE_AB_GROUP1_TARGET_ID_R10_SPP1,
+ IPU_DEVICE_AB_GROUP1_TARGET_ID_R11_CENTRAL_R1,
+ IPU_DEVICE_AB_GROUP1_TARGET_ID_R12_IRQ,
+ IPU_DEVICE_AB_GROUP1_TARGET_ID_R13_CENTRAL_R2,
+ IPU_DEVICE_AB_GROUP1_TARGET_ID_R14_DMA,
+ IPU_DEVICE_AB_GROUP1_TARGET_ID_R15_DMA,
+ IPU_DEVICE_AB_GROUP1_TARGET_ID_R16_GP,
+ IPU_DEVICE_AB_GROUP1_TARGET_ID_R17_ZLW_INSERTER,
+ IPU_DEVICE_AB_GROUP1_TARGET_ID_R18_AB,
+};
+
+enum nci_ab_access_mode {
+ NCI_AB_ACCESS_MODE_RW, /* read & write */
+ NCI_AB_ACCESS_MODE_RO, /* read only */
+ NCI_AB_ACCESS_MODE_WO, /* write only */
+ NCI_AB_ACCESS_MODE_NA /* No access at all */
+};
+
+/*
+ * 3:0 CSI_PORT.irq_out[3:0] CSI_PORT_CTRL0 IRQ outputs (4bits)
+ * [0] CSI_PORT.IRQ_CTRL0_csi
+ * [1] CSI_PORT.IRQ_CTRL1_csi_sync
+ * [2] CSI_PORT.IRQ_CTRL2_s2m_sids0to7
+ * [3] CSI_PORT.IRQ_CTRL3_s2m_sids8to15
+ */
+#define IPU_ISYS_UNISPART_IRQ_CSI2(port) \
+ (0x3 << ((port) * IPU_CSI_IRQ_NUM_PER_PIPE))
+
+/* IRQ-related registers in PSYS */
+#define IPU_REG_PSYS_GPDEV_IRQ_EDGE 0x1aa200
+#define IPU_REG_PSYS_GPDEV_IRQ_MASK 0x1aa204
+#define IPU_REG_PSYS_GPDEV_IRQ_STATUS 0x1aa208
+#define IPU_REG_PSYS_GPDEV_IRQ_CLEAR 0x1aa20c
+#define IPU_REG_PSYS_GPDEV_IRQ_ENABLE 0x1aa210
+#define IPU_REG_PSYS_GPDEV_IRQ_LEVEL_NOT_PULSE 0x1aa214
+/* There are 8 FW interrupts, n = 0..7 */
+#define IPU_PSYS_GPDEV_FWIRQ0 5
+#define IPU_PSYS_GPDEV_FWIRQ1 6
+#define IPU_PSYS_GPDEV_FWIRQ2 7
+#define IPU_PSYS_GPDEV_FWIRQ3 8
+#define IPU_PSYS_GPDEV_FWIRQ4 9
+#define IPU_PSYS_GPDEV_FWIRQ5 10
+#define IPU_PSYS_GPDEV_FWIRQ6 11
+#define IPU_PSYS_GPDEV_FWIRQ7 12
+#define IPU_PSYS_GPDEV_IRQ_FWIRQ(n) (1 << (n))
+#define IPU_REG_PSYS_GPDEV_FWIRQ(n) (4 * (n) + 0x1aa100)
+
+/*
+ * ISYS GPC (Gerneral Performance Counters) Registers
+ */
+#define IPU_ISYS_GPC_BASE 0x2E0000
+#define IPU_ISYS_GPREG_TRACE_TIMER_RST 0x27C410
+enum ipu_isf_cdc_mmu_gpc_registers {
+ IPU_ISF_CDC_MMU_GPC_SOFT_RESET = 0x0F00,
+ IPU_ISF_CDC_MMU_GPC_OVERALL_ENABLE = 0x0F04,
+ IPU_ISF_CDC_MMU_GPC_ENABLE0 = 0x0F20,
+ IPU_ISF_CDC_MMU_GPC_VALUE0 = 0x0F60,
+ IPU_ISF_CDC_MMU_GPC_CNT_SEL0 = 0x0FA0,
+};
+
+/*
+ * GPC (Gerneral Performance Counters) Registers
+ */
+#define IPU_GPC_BASE 0x1B0000
+#define IPU_GPREG_TRACE_TIMER_RST 0x1AA714
+enum ipu_cdc_mmu_gpc_registers {
+ IPU_CDC_MMU_GPC_SOFT_RESET = 0x1B00,
+ IPU_CDC_MMU_GPC_OVERALL_ENABLE = 0x1B04,
+ IPU_CDC_MMU_GPC_TRACE_HEADER = 0x1B08,
+ IPU_CDC_MMU_GPC_TRACE_ADDR = 0x1B0C,
+ IPU_CDC_MMU_GPC_TRACE_ENABLE_NPK = 0x1B10,
+ IPU_CDC_MMU_GPC_TRACE_ENABLE_DDR = 0x1B14,
+ IPU_CDC_MMU_GPC_LP_CLEAR = 0x1B18,
+ IPU_CDC_MMU_GPC_LOST_PACKET = 0x1B1C,
+ IPU_CDC_MMU_GPC_ENABLE0 = 0x1B20,
+ IPU_CDC_MMU_GPC_VALUE0 = 0x1B60,
+ IPU_CDC_MMU_GPC_CNT_SEL0 = 0x1BA0,
+ IPU_CDC_MMU_GPC_START_SEL0 = 0x1BE0,
+ IPU_CDC_MMU_GPC_STOP_SEL0 = 0x1C20,
+ IPU_CDC_MMU_GPC_MSG_SEL0 = 0x1C60,
+ IPU_CDC_MMU_GPC_PLOAD_SEL0 = 0x1CA0,
+ IPU_CDC_MMU_GPC_IRQ_TRIGGER_VALUE0 = 0x1CE0,
+ IPU_CDC_MMU_GPC_IRQ_TIMER_SEL0 = 0x1D20,
+ IPU_CDC_MMU_GPC_IRQ_ENABLE0 = 0x1D60,
+ IPU_CDC_MMU_GPC_END = 0x1D9C
+};
+
+#define IPU_GPC_SENSE_OFFSET 7
+#define IPU_GPC_ROUTE_OFFSET 5
+#define IPU_GPC_SOURCE_OFFSET 0
+
+/*
+ * Signals monitored by GPC
+ */
+#define IPU_GPC_TRACE_TLB_MISS_MMU_LB_IDX 0
+#define IPU_GPC_TRACE_FULL_WRITE_LB_IDX 1
+#define IPU_GPC_TRACE_NOFULL_WRITE_LB_IDX 2
+#define IPU_GPC_TRACE_FULL_READ_LB_IDX 3
+#define IPU_GPC_TRACE_NOFULL_READ_LB_IDX 4
+#define IPU_GPC_TRACE_STALL_LB_IDX 5
+#define IPU_GPC_TRACE_ZLW_LB_IDX 6
+#define IPU_GPC_TRACE_TLB_MISS_MMU_HBTX_IDX 7
+#define IPU_GPC_TRACE_FULL_WRITE_HBTX_IDX 8
+#define IPU_GPC_TRACE_NOFULL_WRITE_HBTX_IDX 9
+#define IPU_GPC_TRACE_FULL_READ_HBTX_IDX 10
+#define IPU_GPC_TRACE_STALL_HBTX_IDX 11
+#define IPU_GPC_TRACE_ZLW_HBTX_IDX 12
+#define IPU_GPC_TRACE_TLB_MISS_MMU_HBFRX_IDX 13
+#define IPU_GPC_TRACE_FULL_READ_HBFRX_IDX 14
+#define IPU_GPC_TRACE_NOFULL_READ_HBFRX_IDX 15
+#define IPU_GPC_TRACE_STALL_HBFRX_IDX 16
+#define IPU_GPC_TRACE_ZLW_HBFRX_IDX 17
+#define IPU_GPC_TRACE_TLB_MISS_ICACHE_IDX 18
+#define IPU_GPC_TRACE_FULL_READ_ICACHE_IDX 19
+#define IPU_GPC_TRACE_STALL_ICACHE_IDX 20
+/*
+ * psys subdomains power request regs
+ */
+enum ipu_device_buttress_psys_domain_pos {
+ IPU_PSYS_SUBDOMAIN_ISA = 0,
+ IPU_PSYS_SUBDOMAIN_PSA = 1,
+ IPU_PSYS_SUBDOMAIN_BB = 2,
+ IPU_PSYS_SUBDOMAIN_IDSP1 = 3, /* only in IPU6M */
+ IPU_PSYS_SUBDOMAIN_IDSP2 = 4, /* only in IPU6M */
+};
+
+#define IPU_PSYS_SUBDOMAINS_POWER_MASK (BIT(IPU_PSYS_SUBDOMAIN_ISA) | \
+ BIT(IPU_PSYS_SUBDOMAIN_PSA) | \
+ BIT(IPU_PSYS_SUBDOMAIN_BB))
+
+#define IPU_PSYS_SUBDOMAINS_POWER_REQ 0xa0
+#define IPU_PSYS_SUBDOMAINS_POWER_STATUS 0xa4
+
+#endif /* IPU_PLATFORM_REGS_H */
diff --git a/drivers/media/pci/intel/ipu6/ipu-platform-resources.h b/drivers/media/pci/intel/ipu6/ipu-platform-resources.h
new file mode 100644
index 0000000000000..1f3554c0e5afa
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu-platform-resources.h
@@ -0,0 +1,103 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2018 - 2020 Intel Corporation */
+
+#ifndef IPU_PLATFORM_RESOURCES_COMMON_H
+#define IPU_PLATFORM_RESOURCES_COMMON_H
+
+#define IPU_FW_PSYS_N_PADDING_UINT8_IN_PROGRAM_MANIFEST 0
+
+#define IPU_FW_PSYS_N_PADDING_UINT8_IN_PROCESS_STRUCT 0
+#define IPU_FW_PSYS_N_PADDING_UINT8_IN_PROCESS_GROUP_STRUCT 2
+#define IPU_FW_PSYS_N_PADDING_UINT8_IN_PROGRAM_MANIFEST_EXT 2
+
+#define IPU_FW_PSYS_N_PADDING_UINT8_IN_TERMINAL_STRUCT 5
+
+#define IPU_FW_PSYS_N_PADDING_UINT8_IN_PARAM_TERMINAL_STRUCT 6
+
+#define IPU_FW_PSYS_N_PADDING_UINT8_IN_DATA_TERMINAL_STRUCT 3
+
+#define IPU_FW_PSYS_N_PADDING_UINT8_IN_FRAME_DESC_STRUCT 3
+#define IPU_FW_PSYS_N_FRAME_PLANES 6
+#define IPU_FW_PSYS_N_PADDING_UINT8_IN_FRAME_STRUCT 4
+
+#define IPU_FW_PSYS_N_PADDING_UINT8_IN_BUFFER_SET_STRUCT 1
+
+#define IPU_FW_PSYS_MAX_INPUT_DEC_RESOURCES 4
+#define IPU_FW_PSYS_MAX_OUTPUT_DEC_RESOURCES 4
+
+#define IPU_FW_PSYS_PROCESS_MAX_CELLS 1
+#define IPU_FW_PSYS_KERNEL_BITMAP_NOF_ELEMS 4
+#define IPU_FW_PSYS_RBM_NOF_ELEMS 5
+#define IPU_FW_PSYS_KBM_NOF_ELEMS 4
+
+struct ipu_fw_psys_process {
+ s16 parent_offset;
+ u8 size;
+ u8 cell_dependencies_offset;
+ u8 terminal_dependencies_offset;
+ u8 process_extension_offset;
+ u8 ID;
+ u8 program_idx;
+ u8 state;
+ u8 cells[IPU_FW_PSYS_PROCESS_MAX_CELLS];
+ u8 cell_dependency_count;
+ u8 terminal_dependency_count;
+};
+
+struct ipu_fw_psys_program_manifest {
+ u32 kernel_bitmap[IPU_FW_PSYS_KERNEL_BITMAP_NOF_ELEMS];
+ s16 parent_offset;
+ u8 program_dependency_offset;
+ u8 terminal_dependency_offset;
+ u8 size;
+ u8 program_extension_offset;
+ u8 program_type;
+ u8 ID;
+ u8 cells[IPU_FW_PSYS_PROCESS_MAX_CELLS];
+ u8 cell_type_id;
+ u8 program_dependency_count;
+ u8 terminal_dependency_count;
+};
+
+/* platform specific resource interface */
+struct ipu_psys_resource_pool;
+struct ipu_psys_resource_alloc;
+struct ipu_fw_psys_process_group;
+int ipu_psys_allocate_resources(const struct device *dev,
+ struct ipu_fw_psys_process_group *pg,
+ void *pg_manifest,
+ struct ipu_psys_resource_alloc *alloc,
+ struct ipu_psys_resource_pool *pool);
+int ipu_psys_move_resources(const struct device *dev,
+ struct ipu_psys_resource_alloc *alloc,
+ struct ipu_psys_resource_pool *source_pool,
+ struct ipu_psys_resource_pool *target_pool);
+
+void ipu_psys_resource_copy(struct ipu_psys_resource_pool *src,
+ struct ipu_psys_resource_pool *dest);
+
+int ipu_psys_try_allocate_resources(struct device *dev,
+ struct ipu_fw_psys_process_group *pg,
+ void *pg_manifest,
+ struct ipu_psys_resource_pool *pool);
+
+void ipu_psys_reset_process_cell(const struct device *dev,
+ struct ipu_fw_psys_process_group *pg,
+ void *pg_manifest,
+ int process_count);
+void ipu_psys_free_resources(struct ipu_psys_resource_alloc *alloc,
+ struct ipu_psys_resource_pool *pool);
+
+int ipu_fw_psys_set_proc_dfm_bitmap(struct ipu_fw_psys_process *ptr,
+ u16 id, u32 bitmap,
+ u32 active_bitmap);
+
+int ipu_psys_allocate_cmd_queue_resource(struct ipu_psys_resource_pool *pool);
+void ipu_psys_free_cmd_queue_resource(struct ipu_psys_resource_pool *pool,
+ u8 queue_id);
+
+extern const struct ipu_fw_resource_definitions *ipu6_res_defs;
+extern const struct ipu_fw_resource_definitions *ipu6se_res_defs;
+extern const struct ipu_fw_resource_definitions *ipu6ep_res_defs;
+extern struct ipu6_psys_hw_res_variant hw_var;
+#endif /* IPU_PLATFORM_RESOURCES_COMMON_H */
diff --git a/drivers/media/pci/intel/ipu6/ipu-platform.h b/drivers/media/pci/intel/ipu6/ipu-platform.h
new file mode 100644
index 0000000000000..dfb3d570ed6bc
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu-platform.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2013 - 2020 Intel Corporation */
+
+#ifndef IPU_PLATFORM_H
+#define IPU_PLATFORM_H
+
+#define IPU_NAME "intel-ipu6"
+
+#define IPU6SE_FIRMWARE_NAME "intel/ipu6se_fw.bin"
+#define IPU6EP_FIRMWARE_NAME "intel/ipu6ep_fw.bin"
+#define IPU6_FIRMWARE_NAME "intel/ipu6_fw.bin"
+
+/*
+ * The following definitions are encoded to the media_device's model field so
+ * that the software components which uses IPU driver can get the hw stepping
+ * information.
+ */
+#define IPU_MEDIA_DEV_MODEL_NAME "ipu6"
+
+#define IPU6SE_ISYS_NUM_STREAMS IPU6SE_NONSECURE_STREAM_ID_MAX
+#define IPU6_ISYS_NUM_STREAMS IPU6_NONSECURE_STREAM_ID_MAX
+
+/* declearations, definitions in ipu6.c */
+extern struct ipu_isys_internal_pdata isys_ipdata;
+extern struct ipu_psys_internal_pdata psys_ipdata;
+extern const struct ipu_buttress_ctrl isys_buttress_ctrl;
+extern const struct ipu_buttress_ctrl psys_buttress_ctrl;
+
+/* definitions in ipu6-isys.c */
+extern struct ipu_trace_block isys_trace_blocks[];
+/* definitions in ipu6-psys.c */
+extern struct ipu_trace_block psys_trace_blocks[];
+
+#endif
diff --git a/drivers/media/pci/intel/ipu6/ipu-resources.c b/drivers/media/pci/intel/ipu6/ipu-resources.c
new file mode 100644
index 0000000000000..dfe4fde7e83f3
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu-resources.c
@@ -0,0 +1,851 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2015 - 2020 Intel Corporation
+
+#include <linux/bitmap.h>
+#include <linux/errno.h>
+#include <linux/gfp.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+
+#include <uapi/linux/ipu-psys.h>
+
+#include "ipu-fw-psys.h"
+#include "ipu-psys.h"
+
+struct ipu6_psys_hw_res_variant hw_var;
+void ipu6_psys_hw_res_variant_init(void)
+{
+ if (ipu_ver == IPU_VER_6SE) {
+ hw_var.queue_num = IPU6SE_FW_PSYS_N_PSYS_CMD_QUEUE_ID;
+ hw_var.cell_num = IPU6SE_FW_PSYS_N_CELL_ID;
+ } else if (ipu_ver == IPU_VER_6) {
+ hw_var.queue_num = IPU6_FW_PSYS_N_PSYS_CMD_QUEUE_ID;
+ hw_var.cell_num = IPU6_FW_PSYS_N_CELL_ID;
+ } else if (ipu_ver == IPU_VER_6EP) {
+ hw_var.queue_num = IPU6_FW_PSYS_N_PSYS_CMD_QUEUE_ID;
+ hw_var.cell_num = IPU6EP_FW_PSYS_N_CELL_ID;
+ } else {
+ WARN(1, "ipu6 psys res var is not initialised correctly.");
+ }
+
+ hw_var.set_proc_dev_chn = ipu6_fw_psys_set_proc_dev_chn;
+ hw_var.set_proc_dfm_bitmap = ipu6_fw_psys_set_proc_dfm_bitmap;
+ hw_var.set_proc_ext_mem = ipu6_fw_psys_set_process_ext_mem;
+ hw_var.get_pgm_by_proc =
+ ipu6_fw_psys_get_program_manifest_by_process;
+ return;
+}
+
+static const struct ipu_fw_resource_definitions *get_res(void)
+{
+ if (ipu_ver == IPU_VER_6SE)
+ return ipu6se_res_defs;
+
+ if (ipu_ver == IPU_VER_6EP)
+ return ipu6ep_res_defs;
+
+ return ipu6_res_defs;
+}
+
+static int ipu_resource_init(struct ipu_resource *res, u32 id, int elements)
+{
+ if (elements <= 0) {
+ res->bitmap = NULL;
+ return 0;
+ }
+
+ res->bitmap = bitmap_zalloc(elements, GFP_KERNEL);
+ if (!res->bitmap)
+ return -ENOMEM;
+ res->elements = elements;
+ res->id = id;
+ return 0;
+}
+
+static unsigned long
+ipu_resource_alloc_with_pos(struct ipu_resource *res, int n,
+ int pos,
+ struct ipu_resource_alloc *alloc,
+ enum ipu_resource_type type)
+{
+ unsigned long p;
+
+ if (n <= 0) {
+ alloc->elements = 0;
+ return 0;
+ }
+
+ if (!res->bitmap || pos >= res->elements)
+ return (unsigned long)(-ENOSPC);
+
+ p = bitmap_find_next_zero_area(res->bitmap, res->elements, pos, n, 0);
+ alloc->resource = NULL;
+
+ if (p != pos)
+ return (unsigned long)(-ENOSPC);
+ bitmap_set(res->bitmap, p, n);
+ alloc->resource = res;
+ alloc->elements = n;
+ alloc->pos = p;
+ alloc->type = type;
+
+ return pos;
+}
+
+static unsigned long
+ipu_resource_alloc(struct ipu_resource *res, int n,
+ struct ipu_resource_alloc *alloc,
+ enum ipu_resource_type type)
+{
+ unsigned long p;
+
+ if (n <= 0) {
+ alloc->elements = 0;
+ return 0;
+ }
+
+ if (!res->bitmap)
+ return (unsigned long)(-ENOSPC);
+
+ p = bitmap_find_next_zero_area(res->bitmap, res->elements, 0, n, 0);
+ alloc->resource = NULL;
+
+ if (p >= res->elements)
+ return (unsigned long)(-ENOSPC);
+ bitmap_set(res->bitmap, p, n);
+ alloc->resource = res;
+ alloc->elements = n;
+ alloc->pos = p;
+ alloc->type = type;
+
+ return p;
+}
+
+static void ipu_resource_free(struct ipu_resource_alloc *alloc)
+{
+ if (alloc->elements <= 0)
+ return;
+
+ if (alloc->type == IPU_RESOURCE_DFM)
+ *alloc->resource->bitmap &= ~(unsigned long)(alloc->elements);
+ else
+ bitmap_clear(alloc->resource->bitmap, alloc->pos,
+ alloc->elements);
+ alloc->resource = NULL;
+}
+
+static void ipu_resource_cleanup(struct ipu_resource *res)
+{
+ bitmap_free(res->bitmap);
+ res->bitmap = NULL;
+}
+
+/********** IPU PSYS-specific resource handling **********/
+int ipu_psys_resource_pool_init(struct ipu_psys_resource_pool *pool)
+{
+ int i, j, k, ret;
+ const struct ipu_fw_resource_definitions *res_defs;
+
+ res_defs = get_res();
+
+ spin_lock_init(&pool->queues_lock);
+ pool->cells = 0;
+
+ for (i = 0; i < res_defs->num_dev_channels; i++) {
+ ret = ipu_resource_init(&pool->dev_channels[i], i,
+ res_defs->dev_channels[i]);
+ if (ret)
+ goto error;
+ }
+
+ for (j = 0; j < res_defs->num_ext_mem_ids; j++) {
+ ret = ipu_resource_init(&pool->ext_memory[j], j,
+ res_defs->ext_mem_ids[j]);
+ if (ret)
+ goto memory_error;
+ }
+
+ for (k = 0; k < res_defs->num_dfm_ids; k++) {
+ ret = ipu_resource_init(&pool->dfms[k], k, res_defs->dfms[k]);
+ if (ret)
+ goto dfm_error;
+ }
+
+ spin_lock(&pool->queues_lock);
+ if (ipu_ver == IPU_VER_6SE)
+ bitmap_zero(pool->cmd_queues,
+ IPU6SE_FW_PSYS_N_PSYS_CMD_QUEUE_ID);
+ else
+ bitmap_zero(pool->cmd_queues,
+ IPU6_FW_PSYS_N_PSYS_CMD_QUEUE_ID);
+ spin_unlock(&pool->queues_lock);
+
+ return 0;
+
+dfm_error:
+ for (k--; k >= 0; k--)
+ ipu_resource_cleanup(&pool->dfms[k]);
+
+memory_error:
+ for (j--; j >= 0; j--)
+ ipu_resource_cleanup(&pool->ext_memory[j]);
+
+error:
+ for (i--; i >= 0; i--)
+ ipu_resource_cleanup(&pool->dev_channels[i]);
+ return ret;
+}
+
+void ipu_psys_resource_copy(struct ipu_psys_resource_pool *src,
+ struct ipu_psys_resource_pool *dest)
+{
+ int i;
+ const struct ipu_fw_resource_definitions *res_defs;
+
+ res_defs = get_res();
+
+ dest->cells = src->cells;
+ for (i = 0; i < res_defs->num_dev_channels; i++)
+ *dest->dev_channels[i].bitmap = *src->dev_channels[i].bitmap;
+
+ for (i = 0; i < res_defs->num_ext_mem_ids; i++)
+ *dest->ext_memory[i].bitmap = *src->ext_memory[i].bitmap;
+
+ for (i = 0; i < res_defs->num_dfm_ids; i++)
+ *dest->dfms[i].bitmap = *src->dfms[i].bitmap;
+}
+
+void ipu_psys_resource_pool_cleanup(struct ipu_psys_resource_pool
+ *pool)
+{
+ u32 i;
+ const struct ipu_fw_resource_definitions *res_defs;
+
+ res_defs = get_res();
+ for (i = 0; i < res_defs->num_dev_channels; i++)
+ ipu_resource_cleanup(&pool->dev_channels[i]);
+
+ for (i = 0; i < res_defs->num_ext_mem_ids; i++)
+ ipu_resource_cleanup(&pool->ext_memory[i]);
+
+ for (i = 0; i < res_defs->num_dfm_ids; i++)
+ ipu_resource_cleanup(&pool->dfms[i]);
+}
+
+static int __alloc_one_resrc(const struct device *dev,
+ struct ipu_fw_psys_process *process,
+ struct ipu_resource *resource,
+ struct ipu_fw_generic_program_manifest *pm,
+ u32 resource_id,
+ struct ipu_psys_resource_alloc *alloc)
+{
+ const u16 resource_req = pm->dev_chn_size[resource_id];
+ const u16 resource_offset_req = pm->dev_chn_offset[resource_id];
+ unsigned long retl;
+
+ if (resource_req <= 0)
+ return 0;
+
+ if (alloc->resources >= IPU_MAX_RESOURCES) {
+ dev_err(dev, "out of resource handles\n");
+ return -ENOSPC;
+ }
+ if (resource_offset_req != (u16)(-1))
+ retl = ipu_resource_alloc_with_pos
+ (resource,
+ resource_req,
+ resource_offset_req,
+ &alloc->resource_alloc[alloc->resources],
+ IPU_RESOURCE_DEV_CHN);
+ else
+ retl = ipu_resource_alloc
+ (resource, resource_req,
+ &alloc->resource_alloc[alloc->resources],
+ IPU_RESOURCE_DEV_CHN);
+ if (IS_ERR_VALUE(retl)) {
+ dev_dbg(dev, "out of device channel resources\n");
+ return (int)retl;
+ }
+ alloc->resources++;
+
+ return 0;
+}
+
+static int ipu_psys_allocate_one_dfm(const struct device *dev,
+ struct ipu_fw_psys_process *process,
+ struct ipu_resource *resource,
+ struct ipu_fw_generic_program_manifest *pm,
+ u32 resource_id,
+ struct ipu_psys_resource_alloc *alloc)
+{
+ u32 dfm_bitmap_req = pm->dfm_port_bitmap[resource_id];
+ u32 active_dfm_bitmap_req = pm->dfm_active_port_bitmap[resource_id];
+ const u8 is_relocatable = pm->is_dfm_relocatable[resource_id];
+ struct ipu_resource_alloc *alloc_resource;
+ unsigned long p = 0;
+
+ if (dfm_bitmap_req == 0)
+ return 0;
+
+ if (alloc->resources >= IPU_MAX_RESOURCES) {
+ dev_err(dev, "out of resource handles\n");
+ return -ENOSPC;
+ }
+
+ if (!resource->bitmap)
+ return -ENOSPC;
+
+ if (!is_relocatable) {
+ if (*resource->bitmap & dfm_bitmap_req) {
+ dev_warn(dev,
+ "out of dfm resources, req 0x%x, get 0x%lx\n",
+ dfm_bitmap_req, *resource->bitmap);
+ return -ENOSPC;
+ }
+ *resource->bitmap |= dfm_bitmap_req;
+ } else {
+ unsigned int n = hweight32(dfm_bitmap_req);
+
+ p = bitmap_find_next_zero_area(resource->bitmap,
+ resource->elements, 0, n, 0);
+
+ if (p >= resource->elements)
+ return -ENOSPC;
+
+ bitmap_set(resource->bitmap, p, n);
+ dfm_bitmap_req = dfm_bitmap_req << p;
+ active_dfm_bitmap_req = active_dfm_bitmap_req << p;
+ }
+
+ alloc_resource = &alloc->resource_alloc[alloc->resources];
+ alloc_resource->resource = resource;
+ /* Using elements to indicate the bitmap */
+ alloc_resource->elements = dfm_bitmap_req;
+ alloc_resource->pos = p;
+ alloc_resource->type = IPU_RESOURCE_DFM;
+
+ alloc->resources++;
+
+ return 0;
+}
+
+/*
+ * ext_mem_type_id is a generic type id for memory (like DMEM, VMEM)
+ * ext_mem_bank_id is detailed type id for memory (like DMEM0, DMEM1 etc.)
+ */
+static int __alloc_mem_resrc(const struct device *dev,
+ struct ipu_fw_psys_process *process,
+ struct ipu_resource *resource,
+ struct ipu_fw_generic_program_manifest *pm,
+ u32 ext_mem_type_id, u32 ext_mem_bank_id,
+ struct ipu_psys_resource_alloc *alloc)
+{
+ const u16 memory_resource_req = pm->ext_mem_size[ext_mem_type_id];
+ const u16 memory_offset_req = pm->ext_mem_offset[ext_mem_type_id];
+
+ unsigned long retl;
+
+ if (memory_resource_req <= 0)
+ return 0;
+
+ if (alloc->resources >= IPU_MAX_RESOURCES) {
+ dev_err(dev, "out of resource handles\n");
+ return -ENOSPC;
+ }
+ if (memory_offset_req != (u16)(-1))
+ retl = ipu_resource_alloc_with_pos
+ (resource,
+ memory_resource_req, memory_offset_req,
+ &alloc->resource_alloc[alloc->resources],
+ IPU_RESOURCE_EXT_MEM);
+ else
+ retl = ipu_resource_alloc
+ (resource, memory_resource_req,
+ &alloc->resource_alloc[alloc->resources],
+ IPU_RESOURCE_EXT_MEM);
+ if (IS_ERR_VALUE(retl)) {
+ dev_dbg(dev, "out of memory resources\n");
+ return (int)retl;
+ }
+
+ alloc->resources++;
+
+ return 0;
+}
+
+int ipu_psys_allocate_cmd_queue_resource(struct ipu_psys_resource_pool *pool)
+{
+ unsigned long p;
+ int size, start;
+
+ size = IPU6_FW_PSYS_N_PSYS_CMD_QUEUE_ID;
+ start = IPU6_FW_PSYS_CMD_QUEUE_PPG0_COMMAND_ID;
+
+ if (ipu_ver == IPU_VER_6SE) {
+ size = IPU6SE_FW_PSYS_N_PSYS_CMD_QUEUE_ID;
+ start = IPU6SE_FW_PSYS_CMD_QUEUE_PPG0_COMMAND_ID;
+ }
+
+ spin_lock(&pool->queues_lock);
+ /* find available cmd queue from ppg0_cmd_id */
+ p = bitmap_find_next_zero_area(pool->cmd_queues, size, start, 1, 0);
+
+ if (p >= size) {
+ spin_unlock(&pool->queues_lock);
+ return -ENOSPC;
+ }
+
+ bitmap_set(pool->cmd_queues, p, 1);
+ spin_unlock(&pool->queues_lock);
+
+ return p;
+}
+
+void ipu_psys_free_cmd_queue_resource(struct ipu_psys_resource_pool *pool,
+ u8 queue_id)
+{
+ spin_lock(&pool->queues_lock);
+ bitmap_clear(pool->cmd_queues, queue_id, 1);
+ spin_unlock(&pool->queues_lock);
+}
+
+int ipu_psys_try_allocate_resources(struct device *dev,
+ struct ipu_fw_psys_process_group *pg,
+ void *pg_manifest,
+ struct ipu_psys_resource_pool *pool)
+{
+ u32 id, idx;
+ u32 mem_type_id;
+ int ret, i;
+ u16 *process_offset_table;
+ u8 processes;
+ u32 cells = 0;
+ struct ipu_psys_resource_alloc *alloc;
+ const struct ipu_fw_resource_definitions *res_defs;
+
+ if (!pg)
+ return -EINVAL;
+ process_offset_table = (u16 *)((u8 *)pg + pg->processes_offset);
+ processes = pg->process_count;
+
+ alloc = kzalloc(sizeof(*alloc), GFP_KERNEL);
+ if (!alloc)
+ return -ENOMEM;
+
+ res_defs = get_res();
+ for (i = 0; i < processes; i++) {
+ u32 cell;
+ struct ipu_fw_psys_process *process =
+ (struct ipu_fw_psys_process *)
+ ((char *)pg + process_offset_table[i]);
+ struct ipu_fw_generic_program_manifest pm;
+
+ memset(&pm, 0, sizeof(pm));
+
+ if (!process) {
+ dev_err(dev, "can not get process\n");
+ ret = -ENOENT;
+ goto free_out;
+ }
+
+ ret = ipu_fw_psys_get_program_manifest_by_process
+ (&pm, pg_manifest, process);
+ if (ret < 0) {
+ dev_err(dev, "can not get manifest\n");
+ goto free_out;
+ }
+
+ if (pm.cell_id == res_defs->num_cells &&
+ pm.cell_type_id == res_defs->num_cells_type) {
+ cell = res_defs->num_cells;
+ } else if ((pm.cell_id != res_defs->num_cells &&
+ pm.cell_type_id == res_defs->num_cells_type)) {
+ cell = pm.cell_id;
+ } else {
+ /* Find a free cell of desired type */
+ u32 type = pm.cell_type_id;
+
+ for (cell = 0; cell < res_defs->num_cells; cell++)
+ if (res_defs->cells[cell] == type &&
+ ((pool->cells | cells) & (1 << cell)) == 0)
+ break;
+ if (cell >= res_defs->num_cells) {
+ dev_dbg(dev, "no free cells of right type\n");
+ ret = -ENOSPC;
+ goto free_out;
+ }
+ }
+ if (cell < res_defs->num_cells)
+ cells |= 1 << cell;
+ if (pool->cells & cells) {
+ dev_dbg(dev, "out of cell resources\n");
+ ret = -ENOSPC;
+ goto free_out;
+ }
+
+ if (pm.dev_chn_size) {
+ for (id = 0; id < res_defs->num_dev_channels; id++) {
+ ret = __alloc_one_resrc(dev, process,
+ &pool->dev_channels[id],
+ &pm, id, alloc);
+ if (ret)
+ goto free_out;
+ }
+ }
+
+ if (pm.dfm_port_bitmap) {
+ for (id = 0; id < res_defs->num_dfm_ids; id++) {
+ ret = ipu_psys_allocate_one_dfm
+ (dev, process,
+ &pool->dfms[id], &pm, id, alloc);
+ if (ret)
+ goto free_out;
+ }
+ }
+
+ if (pm.ext_mem_size) {
+ for (mem_type_id = 0;
+ mem_type_id < res_defs->num_ext_mem_types;
+ mem_type_id++) {
+ u32 bank = res_defs->num_ext_mem_ids;
+
+ if (cell != res_defs->num_cells) {
+ idx = res_defs->cell_mem_row * cell +
+ mem_type_id;
+ bank = res_defs->cell_mem[idx];
+ }
+
+ if (bank == res_defs->num_ext_mem_ids)
+ continue;
+
+ ret = __alloc_mem_resrc(dev, process,
+ &pool->ext_memory[bank],
+ &pm, mem_type_id, bank,
+ alloc);
+ if (ret)
+ goto free_out;
+ }
+ }
+ }
+ alloc->cells |= cells;
+ pool->cells |= cells;
+
+ kfree(alloc);
+ return 0;
+
+free_out:
+ dev_dbg(dev, "failed to try_allocate resource\n");
+ kfree(alloc);
+ return ret;
+}
+
+/*
+ * Allocate resources for pg from `pool'. Mark the allocated
+ * resources into `alloc'. Returns 0 on success, -ENOSPC
+ * if there are no enough resources, in which cases resources
+ * are not allocated at all, or some other error on other conditions.
+ */
+int ipu_psys_allocate_resources(const struct device *dev,
+ struct ipu_fw_psys_process_group *pg,
+ void *pg_manifest,
+ struct ipu_psys_resource_alloc
+ *alloc, struct ipu_psys_resource_pool
+ *pool)
+{
+ u32 id;
+ u32 mem_type_id;
+ int ret, i;
+ u16 *process_offset_table;
+ u8 processes;
+ u32 cells = 0;
+ int p, idx;
+ u32 bmp, a_bmp;
+ const struct ipu_fw_resource_definitions *res_defs;
+
+ if (!pg)
+ return -EINVAL;
+
+ res_defs = get_res();
+ process_offset_table = (u16 *)((u8 *)pg + pg->processes_offset);
+ processes = pg->process_count;
+
+ for (i = 0; i < processes; i++) {
+ u32 cell;
+ struct ipu_fw_psys_process *process =
+ (struct ipu_fw_psys_process *)
+ ((char *)pg + process_offset_table[i]);
+ struct ipu_fw_generic_program_manifest pm;
+
+ memset(&pm, 0, sizeof(pm));
+ if (!process) {
+ dev_err(dev, "can not get process\n");
+ ret = -ENOENT;
+ goto free_out;
+ }
+
+ ret = ipu_fw_psys_get_program_manifest_by_process
+ (&pm, pg_manifest, process);
+ if (ret < 0) {
+ dev_err(dev, "can not get manifest\n");
+ goto free_out;
+ }
+
+ if (pm.cell_id == res_defs->num_cells &&
+ pm.cell_type_id == res_defs->num_cells_type) {
+ cell = res_defs->num_cells;
+ } else if ((pm.cell_id != res_defs->num_cells &&
+ pm.cell_type_id == res_defs->num_cells_type)) {
+ cell = pm.cell_id;
+ } else {
+ /* Find a free cell of desired type */
+ u32 type = pm.cell_type_id;
+
+ for (cell = 0; cell < res_defs->num_cells; cell++)
+ if (res_defs->cells[cell] == type &&
+ ((pool->cells | cells) & (1 << cell)) == 0)
+ break;
+ if (cell >= res_defs->num_cells) {
+ dev_dbg(dev, "no free cells of right type\n");
+ ret = -ENOSPC;
+ goto free_out;
+ }
+ ret = ipu_fw_psys_set_process_cell_id(process, 0, cell);
+ if (ret)
+ goto free_out;
+ }
+ if (cell < res_defs->num_cells)
+ cells |= 1 << cell;
+ if (pool->cells & cells) {
+ dev_dbg(dev, "out of cell resources\n");
+ ret = -ENOSPC;
+ goto free_out;
+ }
+
+ if (pm.dev_chn_size) {
+ for (id = 0; id < res_defs->num_dev_channels; id++) {
+ ret = __alloc_one_resrc(dev, process,
+ &pool->dev_channels[id],
+ &pm, id, alloc);
+ if (ret)
+ goto free_out;
+
+ idx = alloc->resources - 1;
+ p = alloc->resource_alloc[idx].pos;
+ ret = ipu_fw_psys_set_proc_dev_chn(process, id,
+ p);
+ if (ret)
+ goto free_out;
+ }
+ }
+
+ if (pm.dfm_port_bitmap) {
+ for (id = 0; id < res_defs->num_dfm_ids; id++) {
+ ret = ipu_psys_allocate_one_dfm(dev, process,
+ &pool->dfms[id],
+ &pm, id, alloc);
+ if (ret)
+ goto free_out;
+
+ idx = alloc->resources - 1;
+ p = alloc->resource_alloc[idx].pos;
+ bmp = pm.dfm_port_bitmap[id];
+ bmp = bmp << p;
+ a_bmp = pm.dfm_active_port_bitmap[id];
+ a_bmp = a_bmp << p;
+ ret = ipu_fw_psys_set_proc_dfm_bitmap(process,
+ id, bmp,
+ a_bmp);
+ if (ret)
+ goto free_out;
+ }
+ }
+
+ if (pm.ext_mem_size) {
+ for (mem_type_id = 0;
+ mem_type_id < res_defs->num_ext_mem_types;
+ mem_type_id++) {
+ u32 bank = res_defs->num_ext_mem_ids;
+
+ if (cell != res_defs->num_cells) {
+ idx = res_defs->cell_mem_row * cell +
+ mem_type_id;
+ bank = res_defs->cell_mem[idx];
+ }
+ if (bank == res_defs->num_ext_mem_ids)
+ continue;
+
+ ret = __alloc_mem_resrc(dev, process,
+ &pool->ext_memory[bank],
+ &pm, mem_type_id,
+ bank, alloc);
+ if (ret)
+ goto free_out;
+
+ /* no return value check here because fw api
+ * will do some checks, and would return
+ * non-zero except mem_type_id == 0.
+ * This maybe caused by that above flow of
+ * allocating mem_bank_id is improper.
+ */
+ idx = alloc->resources - 1;
+ p = alloc->resource_alloc[idx].pos;
+ ipu_fw_psys_set_process_ext_mem(process,
+ mem_type_id,
+ bank, p);
+ }
+ }
+ }
+ alloc->cells |= cells;
+ pool->cells |= cells;
+ return 0;
+
+free_out:
+ dev_err(dev, "failed to allocate resources, ret %d\n", ret);
+ ipu_psys_reset_process_cell(dev, pg, pg_manifest, i + 1);
+ ipu_psys_free_resources(alloc, pool);
+ return ret;
+}
+
+int ipu_psys_move_resources(const struct device *dev,
+ struct ipu_psys_resource_alloc *alloc,
+ struct ipu_psys_resource_pool
+ *source_pool, struct ipu_psys_resource_pool
+ *target_pool)
+{
+ int i;
+
+ if (target_pool->cells & alloc->cells) {
+ dev_dbg(dev, "out of cell resources\n");
+ return -ENOSPC;
+ }
+
+ for (i = 0; i < alloc->resources; i++) {
+ unsigned long bitmap = 0;
+ unsigned int id = alloc->resource_alloc[i].resource->id;
+ unsigned long fbit, end;
+
+ switch (alloc->resource_alloc[i].type) {
+ case IPU_RESOURCE_DEV_CHN:
+ bitmap_set(&bitmap, alloc->resource_alloc[i].pos,
+ alloc->resource_alloc[i].elements);
+ if (*target_pool->dev_channels[id].bitmap & bitmap)
+ return -ENOSPC;
+ break;
+ case IPU_RESOURCE_EXT_MEM:
+ end = alloc->resource_alloc[i].elements +
+ alloc->resource_alloc[i].pos;
+
+ fbit = find_next_bit(target_pool->ext_memory[id].bitmap,
+ end, alloc->resource_alloc[i].pos);
+ /* if find_next_bit returns "end" it didn't find 1bit */
+ if (end != fbit)
+ return -ENOSPC;
+ break;
+ case IPU_RESOURCE_DFM:
+ bitmap = alloc->resource_alloc[i].elements;
+ if (*target_pool->dfms[id].bitmap & bitmap)
+ return -ENOSPC;
+ break;
+ default:
+ dev_err(dev, "Illegal resource type\n");
+ return -EINVAL;
+ }
+ }
+
+ for (i = 0; i < alloc->resources; i++) {
+ u32 id = alloc->resource_alloc[i].resource->id;
+
+ switch (alloc->resource_alloc[i].type) {
+ case IPU_RESOURCE_DEV_CHN:
+ bitmap_set(target_pool->dev_channels[id].bitmap,
+ alloc->resource_alloc[i].pos,
+ alloc->resource_alloc[i].elements);
+ ipu_resource_free(&alloc->resource_alloc[i]);
+ alloc->resource_alloc[i].resource =
+ &target_pool->dev_channels[id];
+ break;
+ case IPU_RESOURCE_EXT_MEM:
+ bitmap_set(target_pool->ext_memory[id].bitmap,
+ alloc->resource_alloc[i].pos,
+ alloc->resource_alloc[i].elements);
+ ipu_resource_free(&alloc->resource_alloc[i]);
+ alloc->resource_alloc[i].resource =
+ &target_pool->ext_memory[id];
+ break;
+ case IPU_RESOURCE_DFM:
+ *target_pool->dfms[id].bitmap |=
+ alloc->resource_alloc[i].elements;
+ *alloc->resource_alloc[i].resource->bitmap &=
+ ~(alloc->resource_alloc[i].elements);
+ alloc->resource_alloc[i].resource =
+ &target_pool->dfms[id];
+ break;
+ default:
+ /*
+ * Just keep compiler happy. This case failed already
+ * in above loop.
+ */
+ break;
+ }
+ }
+
+ target_pool->cells |= alloc->cells;
+ source_pool->cells &= ~alloc->cells;
+
+ return 0;
+}
+
+void ipu_psys_reset_process_cell(const struct device *dev,
+ struct ipu_fw_psys_process_group *pg,
+ void *pg_manifest,
+ int process_count)
+{
+ int i;
+ u16 *process_offset_table;
+ const struct ipu_fw_resource_definitions *res_defs;
+
+ if (!pg)
+ return;
+
+ res_defs = get_res();
+ process_offset_table = (u16 *)((u8 *)pg + pg->processes_offset);
+ for (i = 0; i < process_count; i++) {
+ struct ipu_fw_psys_process *process =
+ (struct ipu_fw_psys_process *)
+ ((char *)pg + process_offset_table[i]);
+ struct ipu_fw_generic_program_manifest pm;
+ int ret;
+
+ if (!process)
+ break;
+
+ ret = ipu_fw_psys_get_program_manifest_by_process(&pm,
+ pg_manifest,
+ process);
+ if (ret < 0) {
+ dev_err(dev, "can not get manifest\n");
+ break;
+ }
+ if ((pm.cell_id != res_defs->num_cells &&
+ pm.cell_type_id == res_defs->num_cells_type))
+ continue;
+ /* no return value check here because if finding free cell
+ * failed, process cell would not set then calling clear_cell
+ * will return non-zero.
+ */
+ ipu_fw_psys_clear_process_cell(process);
+ }
+}
+
+/* Free resources marked in `alloc' from `resources' */
+void ipu_psys_free_resources(struct ipu_psys_resource_alloc
+ *alloc, struct ipu_psys_resource_pool *pool)
+{
+ unsigned int i;
+
+ pool->cells &= ~alloc->cells;
+ alloc->cells = 0;
+ for (i = 0; i < alloc->resources; i++)
+ ipu_resource_free(&alloc->resource_alloc[i]);
+ alloc->resources = 0;
+}
diff --git a/drivers/media/pci/intel/ipu6/ipu6-fw-resources.c b/drivers/media/pci/intel/ipu6/ipu6-fw-resources.c
new file mode 100644
index 0000000000000..338e90d8f29b5
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu6-fw-resources.c
@@ -0,0 +1,608 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2015 - 2021 Intel Corporation
+
+#include <linux/err.h>
+#include <linux/string.h>
+
+#include "ipu-psys.h"
+#include "ipu-fw-psys.h"
+#include "ipu6-platform-resources.h"
+
+/* resources table */
+
+/*
+ * Cell types by cell IDs
+ */
+static const u8 ipu6_fw_psys_cell_types[IPU6_FW_PSYS_N_CELL_ID] = {
+ IPU6_FW_PSYS_SP_CTRL_TYPE_ID,
+ IPU6_FW_PSYS_VP_TYPE_ID,
+ IPU6_FW_PSYS_ACC_PSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_PSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_PSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_PSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_OSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_OSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_OSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_PSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_PSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_PSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_PSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID, /* X2B_MD */
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID, /* ICA_MEDIUM */
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID, /* X2B_SVE_RGBIR */
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID, /* PAF */
+ IPU6_FW_PSYS_GDC_TYPE_ID,
+ IPU6_FW_PSYS_TNR_TYPE_ID,
+};
+
+static const u16 ipu6_fw_num_dev_channels[IPU6_FW_PSYS_N_DEV_CHN_ID] = {
+ IPU6_FW_PSYS_DEV_CHN_DMA_EXT0_MAX_SIZE,
+ IPU6_FW_PSYS_DEV_CHN_DMA_EXT1_READ_MAX_SIZE,
+ IPU6_FW_PSYS_DEV_CHN_DMA_EXT1_WRITE_MAX_SIZE,
+ IPU6_FW_PSYS_DEV_CHN_DMA_INTERNAL_MAX_SIZE,
+ IPU6_FW_PSYS_DEV_CHN_DMA_ISA_MAX_SIZE,
+};
+
+static const u16 ipu6_fw_psys_mem_size[IPU6_FW_PSYS_N_MEM_ID] = {
+ IPU6_FW_PSYS_VMEM0_MAX_SIZE,
+ IPU6_FW_PSYS_TRANSFER_VMEM0_MAX_SIZE,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_MAX_SIZE,
+ IPU6_FW_PSYS_LB_VMEM_MAX_SIZE,
+ IPU6_FW_PSYS_BAMEM0_MAX_SIZE,
+ IPU6_FW_PSYS_DMEM0_MAX_SIZE,
+ IPU6_FW_PSYS_DMEM1_MAX_SIZE,
+ IPU6_FW_PSYS_DMEM2_MAX_SIZE,
+ IPU6_FW_PSYS_DMEM3_MAX_SIZE,
+ IPU6_FW_PSYS_PMEM0_MAX_SIZE
+};
+
+static const u16 ipu6_fw_psys_dfms[IPU6_FW_PSYS_N_DEV_DFM_ID] = {
+ IPU6_FW_PSYS_DEV_DFM_BB_FULL_PORT_ID_MAX_SIZE,
+ IPU6_FW_PSYS_DEV_DFM_BB_EMPTY_PORT_ID_MAX_SIZE,
+ IPU6_FW_PSYS_DEV_DFM_ISL_FULL_PORT_ID_MAX_SIZE,
+ IPU6_FW_PSYS_DEV_DFM_ISL_EMPTY_PORT_ID_MAX_SIZE,
+ IPU6_FW_PSYS_DEV_DFM_LB_FULL_PORT_ID_MAX_SIZE,
+ IPU6_FW_PSYS_DEV_DFM_LB_EMPTY_PORT_ID_MAX_SIZE,
+};
+
+static const u8
+ipu6_fw_psys_c_mem[IPU6_FW_PSYS_N_CELL_ID][IPU6_FW_PSYS_N_MEM_TYPE_ID] = {
+ {
+ /* IPU6_FW_PSYS_SP0_ID */
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_DMEM0_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_SP1_ID */
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_DMEM1_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_VP0_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_DMEM3_ID,
+ IPU6_FW_PSYS_VMEM0_ID,
+ IPU6_FW_PSYS_BAMEM0_ID,
+ IPU6_FW_PSYS_PMEM0_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC1_ID BNLM */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC2_ID DM */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC3_ID ACM */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC4_ID GTC YUV1 */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC5_ID OFS pin main */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC6_ID OFS pin display */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC7_ID OFS pin pp */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC8_ID GAMMASTAR */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC9_ID GLTM */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC10_ID XNR */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_ICA_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_LSC_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_DPC_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_SIS_A_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_SIS_B_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_B2B_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_B2R_ID and ISA_R2I_SIE */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_R2I_DS_A_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_R2I_DS_B_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_AWB_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_AE_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_AF_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_DOL_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_X2B_MD_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_ICA_MEDIUM_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_X2B_SVE_RGBIR_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_PAF_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_BB_ACC_GDC0_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_BB_ACC_TNR_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ }
+};
+
+static const struct ipu_fw_resource_definitions ipu6_defs = {
+ .cells = ipu6_fw_psys_cell_types,
+ .num_cells = IPU6_FW_PSYS_N_CELL_ID,
+ .num_cells_type = IPU6_FW_PSYS_N_CELL_TYPE_ID,
+
+ .dev_channels = ipu6_fw_num_dev_channels,
+ .num_dev_channels = IPU6_FW_PSYS_N_DEV_CHN_ID,
+
+ .num_ext_mem_types = IPU6_FW_PSYS_N_DATA_MEM_TYPE_ID,
+ .num_ext_mem_ids = IPU6_FW_PSYS_N_MEM_ID,
+ .ext_mem_ids = ipu6_fw_psys_mem_size,
+
+ .num_dfm_ids = IPU6_FW_PSYS_N_DEV_DFM_ID,
+
+ .dfms = ipu6_fw_psys_dfms,
+
+ .cell_mem_row = IPU6_FW_PSYS_N_MEM_TYPE_ID,
+ .cell_mem = &ipu6_fw_psys_c_mem[0][0],
+};
+
+const struct ipu_fw_resource_definitions *ipu6_res_defs = &ipu6_defs;
+
+/********** Generic resource handling **********/
+
+int ipu6_fw_psys_set_proc_dev_chn(struct ipu_fw_psys_process *ptr, u16 offset,
+ u16 value)
+{
+ struct ipu6_fw_psys_process_ext *pm_ext;
+ u8 ps_ext_offset;
+
+ ps_ext_offset = ptr->process_extension_offset;
+ if (!ps_ext_offset)
+ return -EINVAL;
+
+ pm_ext = (struct ipu6_fw_psys_process_ext *)((u8 *)ptr + ps_ext_offset);
+
+ pm_ext->dev_chn_offset[offset] = value;
+
+ return 0;
+}
+
+int ipu6_fw_psys_set_proc_dfm_bitmap(struct ipu_fw_psys_process *ptr,
+ u16 id, u32 bitmap,
+ u32 active_bitmap)
+{
+ struct ipu6_fw_psys_process_ext *pm_ext;
+ u8 ps_ext_offset;
+
+ ps_ext_offset = ptr->process_extension_offset;
+ if (!ps_ext_offset)
+ return -EINVAL;
+
+ pm_ext = (struct ipu6_fw_psys_process_ext *)((u8 *)ptr + ps_ext_offset);
+
+ pm_ext->dfm_port_bitmap[id] = bitmap;
+ pm_ext->dfm_active_port_bitmap[id] = active_bitmap;
+
+ return 0;
+}
+
+int ipu6_fw_psys_set_process_ext_mem(struct ipu_fw_psys_process *ptr,
+ u16 type_id, u16 mem_id, u16 offset)
+{
+ struct ipu6_fw_psys_process_ext *pm_ext;
+ u8 ps_ext_offset;
+
+ ps_ext_offset = ptr->process_extension_offset;
+ if (!ps_ext_offset)
+ return -EINVAL;
+
+ pm_ext = (struct ipu6_fw_psys_process_ext *)((u8 *)ptr + ps_ext_offset);
+
+ pm_ext->ext_mem_offset[type_id] = offset;
+ pm_ext->ext_mem_id[type_id] = mem_id;
+
+ return 0;
+}
+
+static struct ipu_fw_psys_program_manifest *
+get_program_manifest(const struct ipu_fw_psys_program_group_manifest *manifest,
+ const unsigned int program_index)
+{
+ struct ipu_fw_psys_program_manifest *prg_manifest_base;
+ u8 *program_manifest = NULL;
+ u8 program_count;
+ unsigned int i;
+
+ program_count = manifest->program_count;
+
+ prg_manifest_base = (struct ipu_fw_psys_program_manifest *)
+ ((char *)manifest + manifest->program_manifest_offset);
+ if (program_index < program_count) {
+ program_manifest = (u8 *)prg_manifest_base;
+ for (i = 0; i < program_index; i++)
+ program_manifest +=
+ ((struct ipu_fw_psys_program_manifest *)
+ program_manifest)->size;
+ }
+
+ return (struct ipu_fw_psys_program_manifest *)program_manifest;
+}
+
+int ipu6_fw_psys_get_program_manifest_by_process(
+ struct ipu_fw_generic_program_manifest *gen_pm,
+ const struct ipu_fw_psys_program_group_manifest *pg_manifest,
+ struct ipu_fw_psys_process *process)
+{
+ u32 program_id = process->program_idx;
+ struct ipu_fw_psys_program_manifest *pm;
+ struct ipu6_fw_psys_program_manifest_ext *pm_ext;
+
+ pm = get_program_manifest(pg_manifest, program_id);
+
+ if (!pm)
+ return -ENOENT;
+
+ if (pm->program_extension_offset) {
+ pm_ext = (struct ipu6_fw_psys_program_manifest_ext *)
+ ((u8 *)pm + pm->program_extension_offset);
+
+ gen_pm->dev_chn_size = pm_ext->dev_chn_size;
+ gen_pm->dev_chn_offset = pm_ext->dev_chn_offset;
+ gen_pm->ext_mem_size = pm_ext->ext_mem_size;
+ gen_pm->ext_mem_offset = (u16 *)pm_ext->ext_mem_offset;
+ gen_pm->is_dfm_relocatable = pm_ext->is_dfm_relocatable;
+ gen_pm->dfm_port_bitmap = pm_ext->dfm_port_bitmap;
+ gen_pm->dfm_active_port_bitmap =
+ pm_ext->dfm_active_port_bitmap;
+ }
+
+ memcpy(gen_pm->cells, pm->cells, sizeof(pm->cells));
+ gen_pm->cell_id = pm->cells[0];
+ gen_pm->cell_type_id = pm->cell_type_id;
+
+ return 0;
+}
+
+#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) || \
+ (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))
+void ipu6_fw_psys_pg_dump(struct ipu_psys *psys,
+ struct ipu_psys_kcmd *kcmd, const char *note)
+{
+ struct ipu_fw_psys_process_group *pg = kcmd->kpg->pg;
+ u32 pgid = pg->ID;
+ u8 processes = pg->process_count;
+ u16 *process_offset_table = (u16 *)((char *)pg + pg->processes_offset);
+ unsigned int p, chn, mem, mem_id;
+ unsigned int mem_type, max_mem_id, dev_chn;
+
+ if (ipu_ver == IPU_VER_6SE) {
+ mem_type = IPU6SE_FW_PSYS_N_DATA_MEM_TYPE_ID;
+ max_mem_id = IPU6SE_FW_PSYS_N_MEM_ID;
+ dev_chn = IPU6SE_FW_PSYS_N_DEV_CHN_ID;
+ } else if (ipu_ver == IPU_VER_6 || ipu_ver == IPU_VER_6EP) {
+ mem_type = IPU6_FW_PSYS_N_DATA_MEM_TYPE_ID;
+ max_mem_id = IPU6_FW_PSYS_N_MEM_ID;
+ dev_chn = IPU6_FW_PSYS_N_DEV_CHN_ID;
+ } else {
+ WARN(1, "%s ipu_ver:[%u] is unsupported!\n", __func__, ipu_ver);
+ return;
+ }
+
+ dev_dbg(&psys->adev->dev, "%s %s pgid %i has %i processes:\n",
+ __func__, note, pgid, processes);
+
+ for (p = 0; p < processes; p++) {
+ struct ipu_fw_psys_process *process =
+ (struct ipu_fw_psys_process *)
+ ((char *)pg + process_offset_table[p]);
+ struct ipu6_fw_psys_process_ext *pm_ext =
+ (struct ipu6_fw_psys_process_ext *)((u8 *)process
+ + process->process_extension_offset);
+ dev_dbg(&psys->adev->dev, "\t process %i size=%u",
+ p, process->size);
+ if (!process->process_extension_offset)
+ continue;
+
+ for (mem = 0; mem < mem_type; mem++) {
+ mem_id = pm_ext->ext_mem_id[mem];
+ if (mem_id != max_mem_id)
+ dev_dbg(&psys->adev->dev,
+ "\t mem type %u id %d offset=0x%x",
+ mem, mem_id,
+ pm_ext->ext_mem_offset[mem]);
+ }
+ for (chn = 0; chn < dev_chn; chn++) {
+ if (pm_ext->dev_chn_offset[chn] != (u16)(-1))
+ dev_dbg(&psys->adev->dev,
+ "\t dev_chn[%u]=0x%x\n",
+ chn, pm_ext->dev_chn_offset[chn]);
+ }
+ }
+}
+#else
+void ipu6_fw_psys_pg_dump(struct ipu_psys *psys,
+ struct ipu_psys_kcmd *kcmd, const char *note)
+{
+ if (ipu_ver == IPU_VER_6SE || ipu_ver == IPU_VER_6 ||
+ ipu_ver == IPU_VER_6EP)
+ return;
+
+ WARN(1, "%s ipu_ver:[%u] is unsupported!\n", __func__, ipu_ver);
+}
+#endif
diff --git a/drivers/media/pci/intel/ipu6/ipu6-isys-csi2.c b/drivers/media/pci/intel/ipu6/ipu6-isys-csi2.c
new file mode 100644
index 0000000000000..b0f39586256bd
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu6-isys-csi2.c
@@ -0,0 +1,513 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 Intel Corporation
+
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <media/ipu-isys.h>
+#include "ipu.h"
+#include "ipu-buttress.h"
+#include "ipu-isys.h"
+#include "ipu-platform-buttress-regs.h"
+#include "ipu-platform-regs.h"
+#include "ipu-platform-isys-csi2-reg.h"
+#include "ipu6-isys-csi2.h"
+#include "ipu6-isys-phy.h"
+#include "ipu-isys-csi2.h"
+
+struct ipu6_csi2_error {
+ const char *error_string;
+ bool is_info_only;
+};
+
+struct ipu6_csi_irq_info_map {
+ u32 irq_error_mask;
+ u32 irq_num;
+ unsigned int irq_base;
+ unsigned int irq_base_ctrl2;
+ struct ipu6_csi2_error *errors;
+};
+
+/*
+ * Strings corresponding to CSI-2 receiver errors are here.
+ * Corresponding macros are defined in the header file.
+ */
+static struct ipu6_csi2_error dphy_rx_errors[] = {
+ {"Single packet header error corrected", true},
+ {"Multiple packet header errors detected", true},
+ {"Payload checksum (CRC) error", true},
+ {"Transfer FIFO overflow", false},
+ {"Reserved short packet data type detected", true},
+ {"Reserved long packet data type detected", true},
+ {"Incomplete long packet detected", false},
+ {"Frame sync error", false},
+ {"Line sync error", false},
+ {"DPHY recoverable synchronization error", true},
+ {"DPHY fatal error", false},
+ {"DPHY elastic FIFO overflow", false},
+ {"Inter-frame short packet discarded", true},
+ {"Inter-frame long packet discarded", true},
+ {"MIPI pktgen overflow", false},
+ {"MIPI pktgen data loss", false},
+ {"FIFO overflow", false},
+ {"Lane deskew", false},
+ {"SOT sync error", false},
+ {"HSIDLE detected", false}
+};
+
+static refcount_t phy_power_ref_count[IPU_ISYS_CSI_PHY_NUM];
+
+static int ipu6_csi2_phy_power_set(struct ipu_isys *isys,
+ struct ipu_isys_csi2_config *cfg, bool on)
+{
+ int ret = 0;
+ unsigned int port, phy_id;
+ refcount_t *ref;
+ void __iomem *isys_base = isys->pdata->base;
+ unsigned int nr;
+
+ port = cfg->port;
+ phy_id = port / 4;
+ ref = &phy_power_ref_count[phy_id];
+ dev_dbg(&isys->adev->dev, "for phy %d port %d, lanes: %d\n",
+ phy_id, port, cfg->nlanes);
+
+ nr = (ipu_ver == IPU_VER_6 || ipu_ver == IPU_VER_6EP) ?
+ IPU6_ISYS_CSI_PORT_NUM : IPU6SE_ISYS_CSI_PORT_NUM;
+
+ if (!isys_base || port >= nr) {
+ dev_warn(&isys->adev->dev, "invalid port ID %d\n", port);
+ return -EINVAL;
+ }
+
+ if (on) {
+ if (refcount_read(ref)) {
+ /* already up */
+ dev_warn(&isys->adev->dev, "for phy %d is already UP",
+ phy_id);
+ refcount_inc(ref);
+ return 0;
+ }
+
+ ret = ipu6_isys_phy_powerup_ack(isys, phy_id);
+ if (ret)
+ return ret;
+
+ ipu6_isys_phy_reset(isys, phy_id, 0);
+ ipu6_isys_phy_common_init(isys);
+
+ ret = ipu6_isys_phy_config(isys);
+ if (ret)
+ return ret;
+
+ ipu6_isys_phy_reset(isys, phy_id, 1);
+ ret = ipu6_isys_phy_ready(isys, phy_id);
+ if (ret)
+ return ret;
+
+ refcount_set(ref, 1);
+ return 0;
+ }
+
+ /* power off process */
+ if (refcount_dec_and_test(ref))
+ ret = ipu6_isys_phy_powerdown_ack(isys, phy_id);
+ if (ret)
+ dev_err(&isys->adev->dev, "phy poweroff failed!");
+
+ return ret;
+}
+
+static void ipu6_isys_register_errors(struct ipu_isys_csi2 *csi2)
+{
+ u32 mask = 0;
+ u32 irq = readl(csi2->base + CSI_PORT_REG_BASE_IRQ_CSI +
+ CSI_PORT_REG_BASE_IRQ_STATUS_OFFSET);
+
+ mask = (ipu_ver == IPU_VER_6 || ipu_ver == IPU_VER_6EP) ?
+ IPU6_CSI_RX_ERROR_IRQ_MASK : IPU6SE_CSI_RX_ERROR_IRQ_MASK;
+
+ writel(irq & mask,
+ csi2->base + CSI_PORT_REG_BASE_IRQ_CSI +
+ CSI_PORT_REG_BASE_IRQ_CLEAR_OFFSET);
+ csi2->receiver_errors |= irq & mask;
+}
+
+void ipu_isys_csi2_error(struct ipu_isys_csi2 *csi2)
+{
+ struct ipu6_csi2_error *errors;
+ u32 status;
+ unsigned int i;
+
+ /* Register errors once more in case of error interrupts are disabled */
+ ipu6_isys_register_errors(csi2);
+ status = csi2->receiver_errors;
+ csi2->receiver_errors = 0;
+ errors = dphy_rx_errors;
+
+ for (i = 0; i < CSI_RX_NUM_ERRORS_IN_IRQ; i++) {
+ if (status & BIT(i))
+ dev_err_ratelimited(&csi2->isys->adev->dev,
+ "csi2-%i error: %s\n",
+ csi2->index,
+ errors[i].error_string);
+ }
+}
+
+const unsigned int csi2_port_cfg[][3] = {
+ {0, 0, 0x1f}, /* no link */
+ {4, 0, 0x10}, /* x4 + x4 config */
+ {2, 0, 0x12}, /* x2 + x2 config */
+ {1, 0, 0x13}, /* x1 + x1 config */
+ {2, 1, 0x15}, /* x2x1 + x2x1 config */
+ {1, 1, 0x16}, /* x1x1 + x1x1 config */
+ {2, 2, 0x18}, /* x2x2 + x2x2 config */
+ {1, 2, 0x19}, /* x1x2 + x1x2 config */
+};
+
+const unsigned int phy_port_cfg[][4] = {
+ /* port, nlanes, bbindex, portcfg */
+ /* sip0 */
+ {0, 1, 0, 0x15},
+ {0, 2, 0, 0x15},
+ {0, 4, 0, 0x15},
+ {0, 4, 2, 0x22},
+ /* sip1 */
+ {2, 1, 4, 0x15},
+ {2, 2, 4, 0x15},
+ {2, 4, 4, 0x15},
+ {2, 4, 6, 0x22},
+};
+
+static int ipu_isys_csi2_phy_config_by_port(struct ipu_isys *isys,
+ unsigned int port,
+ unsigned int nlanes)
+{
+ void __iomem *base = isys->adev->isp->base;
+ u32 val, reg, i;
+ unsigned int bbnum;
+
+ dev_dbg(&isys->adev->dev, "%s port %u with %u lanes", __func__,
+ port, nlanes);
+
+ /* hard code for x2x2 + x2x2 with <1.5Gbps */
+ for (i = 0; i < IPU6SE_ISYS_PHY_BB_NUM; i++) {
+ /* cphy_dll_ovrd.crcdc_fsm_dlane0 = 13 */
+ reg = IPU6SE_ISYS_PHY_0_BASE + PHY_CPHY_DLL_OVRD(i);
+ val = readl(base + reg);
+ val |= 13 << 1;
+ /* val &= ~0x1; */
+ writel(val, base + reg);
+
+ /* cphy_rx_control1.en_crc1 = 1 */
+ reg = IPU6SE_ISYS_PHY_0_BASE + PHY_CPHY_RX_CONTROL1(i);
+ val = readl(base + reg);
+ val |= 0x1 << 31;
+ writel(val, base + reg);
+
+ /* dphy_cfg.reserved = 1
+ * dphy_cfg.lden_from_dll_ovrd_0 = 1
+ */
+ reg = IPU6SE_ISYS_PHY_0_BASE + PHY_DPHY_CFG(i);
+ val = readl(base + reg);
+ val |= 0x1 << 25;
+ val |= 0x1 << 26;
+ writel(val, base + reg);
+
+ /* cphy_dll_ovrd.lden_crcdc_fsm_dlane0 = 1 */
+ reg = IPU6SE_ISYS_PHY_0_BASE + PHY_CPHY_DLL_OVRD(i);
+ val = readl(base + reg);
+ val |= 1;
+ writel(val, base + reg);
+ }
+
+ /* bb afe config, use minimal channel loss */
+ for (i = 0; i < ARRAY_SIZE(phy_port_cfg); i++) {
+ if (phy_port_cfg[i][0] == port &&
+ phy_port_cfg[i][1] == nlanes) {
+ bbnum = phy_port_cfg[i][2] / 2;
+ reg = IPU6SE_ISYS_PHY_0_BASE + PHY_BB_AFE_CONFIG(bbnum);
+ val = readl(base + reg);
+ val |= phy_port_cfg[i][3];
+ writel(val, base + reg);
+ }
+ }
+
+ return 0;
+}
+
+static void ipu_isys_csi2_rx_control(struct ipu_isys *isys)
+{
+ void __iomem *base = isys->adev->isp->base;
+ u32 val, reg;
+
+ /* lp11 release */
+ reg = CSI2_HUB_GPREG_SIP0_CSI_RX_A_CONTROL;
+ val = readl(base + reg);
+ val |= 0x1;
+ writel(0x1, base + CSI2_HUB_GPREG_SIP0_CSI_RX_A_CONTROL);
+
+ reg = CSI2_HUB_GPREG_SIP0_CSI_RX_B_CONTROL;
+ val = readl(base + reg);
+ val |= 0x1;
+ writel(0x1, base + CSI2_HUB_GPREG_SIP0_CSI_RX_B_CONTROL);
+
+ reg = CSI2_HUB_GPREG_SIP1_CSI_RX_A_CONTROL;
+ val = readl(base + reg);
+ val |= 0x1;
+ writel(0x1, base + CSI2_HUB_GPREG_SIP1_CSI_RX_A_CONTROL);
+
+ reg = CSI2_HUB_GPREG_SIP1_CSI_RX_B_CONTROL;
+ val = readl(base + reg);
+ val |= 0x1;
+ writel(0x1, base + CSI2_HUB_GPREG_SIP1_CSI_RX_B_CONTROL);
+}
+
+static int ipu_isys_csi2_set_port_cfg(struct v4l2_subdev *sd, unsigned int port,
+ unsigned int nlanes)
+{
+ struct ipu_isys_csi2 *csi2 = to_ipu_isys_csi2(sd);
+ struct ipu_isys *isys = csi2->isys;
+ unsigned int sip = port / 2;
+ unsigned int index;
+
+ switch (nlanes) {
+ case 1:
+ index = 5;
+ break;
+ case 2:
+ index = 6;
+ break;
+ case 4:
+ index = 1;
+ break;
+ default:
+ dev_err(&isys->adev->dev, "lanes nr %u is unsupported\n",
+ nlanes);
+ return -EINVAL;
+ }
+
+ dev_dbg(&isys->adev->dev, "port config for port %u with %u lanes\n",
+ port, nlanes);
+ writel(csi2_port_cfg[index][2],
+ isys->pdata->base + CSI2_HUB_GPREG_SIP_FB_PORT_CFG(sip));
+
+ return 0;
+}
+
+static void ipu_isys_csi2_set_timing(struct v4l2_subdev *sd,
+ struct ipu_isys_csi2_timing timing,
+ unsigned int port,
+ unsigned int nlanes)
+{
+ u32 port_base;
+ void __iomem *reg;
+ struct ipu_isys_csi2 *csi2 = to_ipu_isys_csi2(sd);
+ struct ipu_isys *isys = csi2->isys;
+ unsigned int i;
+
+ port_base = (port % 2) ? CSI2_SIP_TOP_CSI_RX_PORT_BASE_1(port) :
+ CSI2_SIP_TOP_CSI_RX_PORT_BASE_0(port);
+
+ dev_dbg(&isys->adev->dev,
+ "set timing for port %u base 0x%x with %u lanes\n",
+ port, port_base, nlanes);
+
+ reg = isys->pdata->base + port_base;
+ reg += CSI2_SIP_TOP_CSI_RX_DLY_CNT_TERMEN_CLANE;
+
+ writel(timing.ctermen, reg);
+
+ reg = isys->pdata->base + port_base;
+ reg += CSI2_SIP_TOP_CSI_RX_DLY_CNT_SETTLE_CLANE;
+ writel(timing.csettle, reg);
+
+ for (i = 0; i < nlanes; i++) {
+ reg = isys->pdata->base + port_base;
+ reg += CSI2_SIP_TOP_CSI_RX_DLY_CNT_TERMEN_DLANE(i);
+ writel(timing.dtermen, reg);
+
+ reg = isys->pdata->base + port_base;
+ reg += CSI2_SIP_TOP_CSI_RX_DLY_CNT_SETTLE_DLANE(i);
+ writel(timing.dsettle, reg);
+ }
+}
+
+int ipu_isys_csi2_set_stream(struct v4l2_subdev *sd,
+ struct ipu_isys_csi2_timing timing,
+ unsigned int nlanes, int enable)
+{
+ struct ipu_isys_csi2 *csi2 = to_ipu_isys_csi2(sd);
+ struct ipu_isys *isys = csi2->isys;
+ struct ipu_isys_pipeline *ip = container_of(sd->entity.pipe,
+ struct ipu_isys_pipeline,
+ pipe);
+ struct ipu_isys_csi2_config *cfg =
+ v4l2_get_subdev_hostdata(media_entity_to_v4l2_subdev
+ (ip->external->entity));
+ unsigned int port;
+ int ret;
+ u32 mask = 0;
+
+ port = cfg->port;
+ dev_dbg(&isys->adev->dev, "for port %u\n", port);
+
+ mask = (ipu_ver == IPU_VER_6 || ipu_ver == IPU_VER_6EP) ?
+ IPU6_CSI_RX_ERROR_IRQ_MASK : IPU6SE_CSI_RX_ERROR_IRQ_MASK;
+
+ if (!enable) {
+
+ writel(0, csi2->base + CSI_REG_CSI_FE_ENABLE);
+ writel(0, csi2->base + CSI_REG_PPI2CSI_ENABLE);
+
+ /* Disable interrupts */
+ writel(0,
+ csi2->base + CSI_PORT_REG_BASE_IRQ_CSI +
+ CSI_PORT_REG_BASE_IRQ_ENABLE_OFFSET);
+ writel(mask,
+ csi2->base + CSI_PORT_REG_BASE_IRQ_CSI +
+ CSI_PORT_REG_BASE_IRQ_CLEAR_OFFSET);
+ writel(0,
+ csi2->base + CSI_PORT_REG_BASE_IRQ_CSI_SYNC +
+ CSI_PORT_REG_BASE_IRQ_ENABLE_OFFSET);
+ writel(0xffffffff,
+ csi2->base + CSI_PORT_REG_BASE_IRQ_CSI_SYNC +
+ CSI_PORT_REG_BASE_IRQ_CLEAR_OFFSET);
+
+ /* Disable clock */
+ writel(0, isys->pdata->base +
+ CSI_REG_HUB_FW_ACCESS_PORT(port));
+ writel(0, isys->pdata->base +
+ CSI_REG_HUB_DRV_ACCESS_PORT(port));
+
+ if (ipu_ver == IPU_VER_6SE)
+ return 0;
+
+ /* power down */
+ return ipu6_csi2_phy_power_set(isys, cfg, false);
+ }
+
+ if (ipu_ver == IPU_VER_6 || ipu_ver == IPU_VER_6EP) {
+ /* Enable DPHY power */
+ ret = ipu6_csi2_phy_power_set(isys, cfg, true);
+ if (ret) {
+ dev_err(&isys->adev->dev,
+ "CSI-%d PHY power up failed %d\n",
+ cfg->port, ret);
+ return ret;
+ }
+ }
+
+ /* reset port reset */
+ writel(0x1, csi2->base + CSI_REG_PORT_GPREG_SRST);
+ usleep_range(100, 200);
+ writel(0x0, csi2->base + CSI_REG_PORT_GPREG_SRST);
+
+ /* Enable port clock */
+ writel(1, isys->pdata->base + CSI_REG_HUB_DRV_ACCESS_PORT(port));
+ writel(1, isys->pdata->base + CSI_REG_HUB_FW_ACCESS_PORT(port));
+
+ if (ipu_ver == IPU_VER_6SE) {
+ ipu_isys_csi2_phy_config_by_port(isys, port, nlanes);
+
+ /* 9'b00010.1000 for 400Mhz isys freqency */
+ writel(0x28,
+ isys->pdata->base + CSI2_HUB_GPREG_DPHY_TIMER_INCR);
+ /* set port cfg and rx timing */
+ ipu_isys_csi2_set_timing(sd, timing, port, nlanes);
+
+ ret = ipu_isys_csi2_set_port_cfg(sd, port, nlanes);
+ if (ret)
+ return ret;
+
+ ipu_isys_csi2_rx_control(isys);
+ }
+
+ /* enable all error related irq */
+ writel(mask,
+ csi2->base + CSI_PORT_REG_BASE_IRQ_CSI +
+ CSI_PORT_REG_BASE_IRQ_STATUS_OFFSET);
+ writel(mask,
+ csi2->base + CSI_PORT_REG_BASE_IRQ_CSI +
+ CSI_PORT_REG_BASE_IRQ_MASK_OFFSET);
+ writel(mask,
+ csi2->base + CSI_PORT_REG_BASE_IRQ_CSI +
+ CSI_PORT_REG_BASE_IRQ_CLEAR_OFFSET);
+ writel(mask,
+ csi2->base + CSI_PORT_REG_BASE_IRQ_CSI +
+ CSI_PORT_REG_BASE_IRQ_LEVEL_NOT_PULSE_OFFSET);
+ writel(mask,
+ csi2->base + CSI_PORT_REG_BASE_IRQ_CSI +
+ CSI_PORT_REG_BASE_IRQ_ENABLE_OFFSET);
+
+ /* To save CPU wakeups, disable CSI SOF/EOF irq */
+ writel(0xffffffff, csi2->base + CSI_PORT_REG_BASE_IRQ_CSI_SYNC +
+ CSI_PORT_REG_BASE_IRQ_STATUS_OFFSET);
+ writel(0, csi2->base + CSI_PORT_REG_BASE_IRQ_CSI_SYNC +
+ CSI_PORT_REG_BASE_IRQ_MASK_OFFSET);
+ writel(0xffffffff, csi2->base + CSI_PORT_REG_BASE_IRQ_CSI_SYNC +
+ CSI_PORT_REG_BASE_IRQ_CLEAR_OFFSET);
+ writel(0, csi2->base + CSI_PORT_REG_BASE_IRQ_CSI_SYNC +
+ CSI_PORT_REG_BASE_IRQ_LEVEL_NOT_PULSE_OFFSET);
+ writel(0xffffffff, csi2->base + CSI_PORT_REG_BASE_IRQ_CSI_SYNC +
+ CSI_PORT_REG_BASE_IRQ_ENABLE_OFFSET);
+
+ /* Configure FE/PPI2CSI and enable FE/ PPI2CSI */
+ writel(0, csi2->base + CSI_REG_CSI_FE_MODE);
+ writel(CSI_SENSOR_INPUT, csi2->base + CSI_REG_CSI_FE_MUX_CTRL);
+ writel(CSI_CNTR_SENSOR_LINE_ID | CSI_CNTR_SENSOR_FRAME_ID,
+ csi2->base + CSI_REG_CSI_FE_SYNC_CNTR_SEL);
+ writel(((nlanes - 1) <<
+ PPI_INTF_CONFIG_NOF_ENABLED_DATALANES_SHIFT) |
+ (0 << PPI_INTF_CONFIG_RX_AUTO_CLKGATING_SHIFT),
+ csi2->base + CSI_REG_PPI2CSI_CONFIG_PPI_INTF);
+ writel(0x06, csi2->base + CSI_REG_PPI2CSI_CONFIG_CSI_FEATURE);
+ writel(1, csi2->base + CSI_REG_PPI2CSI_ENABLE);
+ writel(1, csi2->base + CSI_REG_CSI_FE_ENABLE);
+
+ return 0;
+}
+
+void ipu_isys_csi2_isr(struct ipu_isys_csi2 *csi2)
+{
+ u32 status;
+
+ ipu6_isys_register_errors(csi2);
+
+ status = readl(csi2->base + CSI_PORT_REG_BASE_IRQ_CSI_SYNC +
+ CSI_PORT_REG_BASE_IRQ_STATUS_OFFSET);
+
+ writel(status, csi2->base + CSI_PORT_REG_BASE_IRQ_CSI_SYNC +
+ CSI_PORT_REG_BASE_IRQ_CLEAR_OFFSET);
+
+ if (status & IPU_CSI_RX_IRQ_FS_VC)
+ ipu_isys_csi2_sof_event(csi2);
+ if (status & IPU_CSI_RX_IRQ_FE_VC)
+ ipu_isys_csi2_eof_event(csi2);
+}
+
+unsigned int ipu_isys_csi2_get_current_field(struct ipu_isys_pipeline *ip,
+ unsigned int *timestamp)
+{
+ struct ipu_isys_video *av = container_of(ip, struct ipu_isys_video, ip);
+ struct ipu_isys *isys = av->isys;
+ unsigned int field = V4L2_FIELD_TOP;
+
+ struct ipu_isys_buffer *short_packet_ib =
+ list_last_entry(&ip->short_packet_active,
+ struct ipu_isys_buffer, head);
+ struct ipu_isys_private_buffer *pb =
+ ipu_isys_buffer_to_private_buffer(short_packet_ib);
+ struct ipu_isys_mipi_packet_header *ph =
+ (struct ipu_isys_mipi_packet_header *)
+ pb->buffer;
+
+ /* Check if the first SOF packet is received. */
+ if ((ph->dtype & IPU_ISYS_SHORT_PACKET_DTYPE_MASK) != 0)
+ dev_warn(&isys->adev->dev, "First short packet is not SOF.\n");
+ field = (ph->word_count % 2) ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
+ dev_dbg(&isys->adev->dev,
+ "Interlaced field ready. frame_num = %d field = %d\n",
+ ph->word_count, field);
+
+ return field;
+}
diff --git a/drivers/media/pci/intel/ipu6/ipu6-isys-csi2.h b/drivers/media/pci/intel/ipu6/ipu6-isys-csi2.h
new file mode 100644
index 0000000000000..9db3ef6f88690
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu6-isys-csi2.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2020 Intel Corporation */
+
+#ifndef IPU6_ISYS_CSI2_H
+#define IPU6_ISYS_CSI2_H
+
+struct ipu_isys_csi2_timing;
+struct ipu_isys_csi2;
+struct ipu_isys_pipeline;
+struct v4l2_subdev;
+
+#define IPU_ISYS_SHORT_PACKET_DTYPE_MASK 0x3f
+
+#endif /* IPU6_ISYS_CSI2_H */
diff --git a/drivers/media/pci/intel/ipu6/ipu6-isys-gpc.c b/drivers/media/pci/intel/ipu6/ipu6-isys-gpc.c
new file mode 100644
index 0000000000000..a305c0c3e2cf9
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu6-isys-gpc.c
@@ -0,0 +1,203 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 Intel Corporation
+
+#ifdef CONFIG_DEBUG_FS
+#include <linux/debugfs.h>
+#include <linux/pm_runtime.h>
+
+#include "ipu-isys.h"
+#include "ipu-platform-regs.h"
+
+#define IPU_ISYS_GPC_NUM 16
+
+#ifndef CONFIG_PM
+#define pm_runtime_get_sync(d) 0
+#define pm_runtime_put(d) 0
+#endif
+
+struct ipu_isys_gpc {
+ bool enable;
+ unsigned int route;
+ unsigned int source;
+ unsigned int sense;
+ unsigned int gpcindex;
+ void *prit;
+};
+
+struct ipu_isys_gpcs {
+ bool gpc_enable;
+ struct ipu_isys_gpc gpc[IPU_ISYS_GPC_NUM];
+ void *prit;
+};
+
+static int ipu6_isys_gpc_global_enable_get(void *data, u64 *val)
+{
+ struct ipu_isys_gpcs *isys_gpcs = data;
+ struct ipu_isys *isys = isys_gpcs->prit;
+
+ mutex_lock(&isys->mutex);
+
+ *val = isys_gpcs->gpc_enable;
+
+ mutex_unlock(&isys->mutex);
+ return 0;
+}
+
+static int ipu6_isys_gpc_global_enable_set(void *data, u64 val)
+{
+ struct ipu_isys_gpcs *isys_gpcs = data;
+ struct ipu_isys *isys = isys_gpcs->prit;
+ void __iomem *base;
+ int i, ret;
+
+ if (val != 0 && val != 1)
+ return -EINVAL;
+
+ if (!isys || !isys->pdata || !isys->pdata->base)
+ return -EINVAL;
+
+ mutex_lock(&isys->mutex);
+
+ base = isys->pdata->base + IPU_ISYS_GPC_BASE;
+
+ ret = pm_runtime_get_sync(&isys->adev->dev);
+ if (ret < 0) {
+ pm_runtime_put(&isys->adev->dev);
+ mutex_unlock(&isys->mutex);
+ return ret;
+ }
+
+ if (!val) {
+ writel(0x0, base + IPU_ISYS_GPREG_TRACE_TIMER_RST);
+ writel(0x0, base + IPU_ISF_CDC_MMU_GPC_OVERALL_ENABLE);
+ writel(0xffff, base + IPU_ISF_CDC_MMU_GPC_SOFT_RESET);
+ isys_gpcs->gpc_enable = false;
+ for (i = 0; i < IPU_ISYS_GPC_NUM; i++) {
+ isys_gpcs->gpc[i].enable = 0;
+ isys_gpcs->gpc[i].sense = 0;
+ isys_gpcs->gpc[i].route = 0;
+ isys_gpcs->gpc[i].source = 0;
+ }
+ pm_runtime_mark_last_busy(&isys->adev->dev);
+ pm_runtime_put_autosuspend(&isys->adev->dev);
+ } else {
+ /*
+ * Set gpc reg and start all gpc here.
+ * RST free running local timer.
+ */
+ writel(0x0, base + IPU_ISYS_GPREG_TRACE_TIMER_RST);
+ writel(0x1, base + IPU_ISYS_GPREG_TRACE_TIMER_RST);
+
+ for (i = 0; i < IPU_ISYS_GPC_NUM; i++) {
+ /* Enable */
+ writel(isys_gpcs->gpc[i].enable,
+ base + IPU_ISF_CDC_MMU_GPC_ENABLE0 + 4 * i);
+ /* Setting (route/source/sense) */
+ writel((isys_gpcs->gpc[i].sense
+ << IPU_GPC_SENSE_OFFSET)
+ + (isys_gpcs->gpc[i].route
+ << IPU_GPC_ROUTE_OFFSET)
+ + (isys_gpcs->gpc[i].source
+ << IPU_GPC_SOURCE_OFFSET),
+ base + IPU_ISF_CDC_MMU_GPC_CNT_SEL0 + 4 * i);
+ }
+
+ /* Soft reset and Overall Enable. */
+ writel(0x0, base + IPU_ISF_CDC_MMU_GPC_OVERALL_ENABLE);
+ writel(0xffff, base + IPU_ISF_CDC_MMU_GPC_SOFT_RESET);
+ writel(0x1, base + IPU_ISF_CDC_MMU_GPC_OVERALL_ENABLE);
+
+ isys_gpcs->gpc_enable = true;
+ }
+
+ mutex_unlock(&isys->mutex);
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(isys_gpc_globe_enable_fops,
+ ipu6_isys_gpc_global_enable_get,
+ ipu6_isys_gpc_global_enable_set, "%llu\n");
+
+static int ipu6_isys_gpc_count_get(void *data, u64 *val)
+{
+ struct ipu_isys_gpc *isys_gpc = data;
+ struct ipu_isys *isys = isys_gpc->prit;
+ void __iomem *base;
+
+ if (!isys || !isys->pdata || !isys->pdata->base)
+ return -EINVAL;
+
+ spin_lock(&isys->power_lock);
+ if (isys->power) {
+ base = isys->pdata->base + IPU_ISYS_GPC_BASE;
+ *val = readl(base + IPU_ISF_CDC_MMU_GPC_VALUE0
+ + 4 * isys_gpc->gpcindex);
+ } else {
+ *val = 0;
+ }
+ spin_unlock(&isys->power_lock);
+
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(isys_gpc_count_fops, ipu6_isys_gpc_count_get,
+ NULL, "%llu\n");
+
+int ipu_isys_gpc_init_debugfs(struct ipu_isys *isys)
+{
+ struct dentry *gpcdir;
+ struct dentry *dir;
+ struct dentry *file;
+ int i;
+ char gpcname[10];
+ struct ipu_isys_gpcs *isys_gpcs;
+
+ isys_gpcs = devm_kzalloc(&isys->adev->dev, sizeof(*isys_gpcs),
+ GFP_KERNEL);
+ if (!isys_gpcs)
+ return -ENOMEM;
+
+ gpcdir = debugfs_create_dir("gpcs", isys->debugfsdir);
+ if (IS_ERR(gpcdir))
+ return -ENOMEM;
+
+ isys_gpcs->prit = isys;
+ file = debugfs_create_file("enable", 0600, gpcdir, isys_gpcs,
+ &isys_gpc_globe_enable_fops);
+ if (IS_ERR(file))
+ goto err;
+
+ for (i = 0; i < IPU_ISYS_GPC_NUM; i++) {
+ sprintf(gpcname, "gpc%d", i);
+ dir = debugfs_create_dir(gpcname, gpcdir);
+ if (IS_ERR(dir))
+ goto err;
+
+ debugfs_create_bool("enable", 0600, dir,
+ &isys_gpcs->gpc[i].enable);
+
+ debugfs_create_u32("source", 0600, dir,
+ &isys_gpcs->gpc[i].source);
+
+ debugfs_create_u32("route", 0600, dir,
+ &isys_gpcs->gpc[i].route);
+
+ debugfs_create_u32("sense", 0600, dir,
+ &isys_gpcs->gpc[i].sense);
+
+ isys_gpcs->gpc[i].gpcindex = i;
+ isys_gpcs->gpc[i].prit = isys;
+ file = debugfs_create_file("count", 0400, dir,
+ &isys_gpcs->gpc[i],
+ &isys_gpc_count_fops);
+ if (IS_ERR(file))
+ goto err;
+ }
+
+ return 0;
+
+err:
+ debugfs_remove_recursive(gpcdir);
+ return -ENOMEM;
+}
+#endif
diff --git a/drivers/media/pci/intel/ipu6/ipu6-isys-phy.c b/drivers/media/pci/intel/ipu6/ipu6-isys-phy.c
new file mode 100644
index 0000000000000..c26780106c78f
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu6-isys-phy.c
@@ -0,0 +1,595 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2013 - 2020 Intel Corporation
+ */
+
+#include <linux/delay.h>
+#include <media/ipu-isys.h>
+#include <media/v4l2-device.h>
+#include "ipu.h"
+#include "ipu-buttress.h"
+#include "ipu-isys.h"
+#include "ipu-isys-csi2.h"
+#include "ipu-platform-regs.h"
+#include "ipu-platform-isys-csi2-reg.h"
+#include "ipu6-isys-csi2.h"
+#include "ipu6-isys-phy.h"
+
+#define LOOP (2000)
+
+#define PHY_REG_INIT_CTL 0x00000694
+#define PHY_REG_INIT_CTL_PORT_OFFSET 0x00000600
+
+struct phy_reg {
+ u32 reg;
+ u32 val;
+};
+
+static const struct phy_reg common_init_regs[] = {
+ /* for TGL-U, use 0x80000000 */
+ {0x00000040, 0x80000000},
+ {0x00000044, 0x00a80880},
+ {0x00000044, 0x00b80880},
+ {0x00000010, 0x0000078c},
+ {0x00000344, 0x2f4401e2},
+ {0x00000544, 0x924401e2},
+ {0x00000744, 0x594401e2},
+ {0x00000944, 0x624401e2},
+ {0x00000b44, 0xfc4401e2},
+ {0x00000d44, 0xc54401e2},
+ {0x00000f44, 0x034401e2},
+ {0x00001144, 0x8f4401e2},
+ {0x00001344, 0x754401e2},
+ {0x00001544, 0xe94401e2},
+ {0x00001744, 0xcb4401e2},
+ {0x00001944, 0xfa4401e2}
+};
+
+static const struct phy_reg x1_port0_config_regs[] = {
+ {0x00000694, 0xc80060fa},
+ {0x00000680, 0x3d4f78ea},
+ {0x00000690, 0x10a0140b},
+ {0x000006a8, 0xdf04010a},
+ {0x00000700, 0x57050060},
+ {0x00000710, 0x0030001c},
+ {0x00000738, 0x5f004444},
+ {0x0000073c, 0x78464204},
+ {0x00000748, 0x7821f940},
+ {0x0000074c, 0xb2000433},
+ {0x00000494, 0xfe6030fa},
+ {0x00000480, 0x29ef5ed0},
+ {0x00000490, 0x10a0540b},
+ {0x000004a8, 0x7a01010a},
+ {0x00000500, 0xef053460},
+ {0x00000510, 0xe030101c},
+ {0x00000538, 0xdf808444},
+ {0x0000053c, 0xc8422204},
+ {0x00000540, 0x0180088c},
+ {0x00000574, 0x00000000},
+ {0x00000000, 0x00000000}
+};
+
+static const struct phy_reg x1_port1_config_regs[] = {
+ {0x00000c94, 0xc80060fa},
+ {0x00000c80, 0xcf47abea},
+ {0x00000c90, 0x10a0840b},
+ {0x00000ca8, 0xdf04010a},
+ {0x00000d00, 0x57050060},
+ {0x00000d10, 0x0030001c},
+ {0x00000d38, 0x5f004444},
+ {0x00000d3c, 0x78464204},
+ {0x00000d48, 0x7821f940},
+ {0x00000d4c, 0xb2000433},
+ {0x00000a94, 0xc91030fa},
+ {0x00000a80, 0x5a166ed0},
+ {0x00000a90, 0x10a0540b},
+ {0x00000aa8, 0x5d060100},
+ {0x00000b00, 0xef053460},
+ {0x00000b10, 0xa030101c},
+ {0x00000b38, 0xdf808444},
+ {0x00000b3c, 0xc8422204},
+ {0x00000b40, 0x0180088c},
+ {0x00000b74, 0x00000000},
+ {0x00000000, 0x00000000}
+};
+
+static const struct phy_reg x1_port2_config_regs[] = {
+ {0x00001294, 0x28f000fa},
+ {0x00001280, 0x08130cea},
+ {0x00001290, 0x10a0140b},
+ {0x000012a8, 0xd704010a},
+ {0x00001300, 0x8d050060},
+ {0x00001310, 0x0030001c},
+ {0x00001338, 0xdf008444},
+ {0x0000133c, 0x78422204},
+ {0x00001348, 0x7821f940},
+ {0x0000134c, 0x5a000433},
+ {0x00001094, 0x2d20b0fa},
+ {0x00001080, 0xade75dd0},
+ {0x00001090, 0x10a0540b},
+ {0x000010a8, 0xb101010a},
+ {0x00001100, 0x33053460},
+ {0x00001110, 0x0030101c},
+ {0x00001138, 0xdf808444},
+ {0x0000113c, 0xc8422204},
+ {0x00001140, 0x8180088c},
+ {0x00001174, 0x00000000},
+ {0x00000000, 0x00000000}
+};
+
+static const struct phy_reg x1_port3_config_regs[] = {
+ {0x00001894, 0xc80060fa},
+ {0x00001880, 0x0f90fd6a},
+ {0x00001890, 0x10a0840b},
+ {0x000018a8, 0xdf04010a},
+ {0x00001900, 0x57050060},
+ {0x00001910, 0x0030001c},
+ {0x00001938, 0x5f004444},
+ {0x0000193c, 0x78464204},
+ {0x00001948, 0x7821f940},
+ {0x0000194c, 0xb2000433},
+ {0x00001694, 0x3050d0fa},
+ {0x00001680, 0x0ef6d050},
+ {0x00001690, 0x10a0540b},
+ {0x000016a8, 0xe301010a},
+ {0x00001700, 0x69053460},
+ {0x00001710, 0xa030101c},
+ {0x00001738, 0xdf808444},
+ {0x0000173c, 0xc8422204},
+ {0x00001740, 0x0180088c},
+ {0x00001774, 0x00000000},
+ {0x00000000, 0x00000000}
+};
+
+static const struct phy_reg x2_port0_config_regs[] = {
+ {0x00000694, 0xc80060fa},
+ {0x00000680, 0x3d4f78ea},
+ {0x00000690, 0x10a0140b},
+ {0x000006a8, 0xdf04010a},
+ {0x00000700, 0x57050060},
+ {0x00000710, 0x0030001c},
+ {0x00000738, 0x5f004444},
+ {0x0000073c, 0x78464204},
+ {0x00000748, 0x7821f940},
+ {0x0000074c, 0xb2000433},
+ {0x00000494, 0xc80060fa},
+ {0x00000480, 0x29ef5ed8},
+ {0x00000490, 0x10a0540b},
+ {0x000004a8, 0x7a01010a},
+ {0x00000500, 0xef053460},
+ {0x00000510, 0xe030101c},
+ {0x00000538, 0xdf808444},
+ {0x0000053c, 0xc8422204},
+ {0x00000540, 0x0180088c},
+ {0x00000574, 0x00000000},
+ {0x00000294, 0xc80060fa},
+ {0x00000280, 0xcb45b950},
+ {0x00000290, 0x10a0540b},
+ {0x000002a8, 0x8c01010a},
+ {0x00000300, 0xef053460},
+ {0x00000310, 0x8030101c},
+ {0x00000338, 0x41808444},
+ {0x0000033c, 0x32422204},
+ {0x00000340, 0x0180088c},
+ {0x00000374, 0x00000000},
+ {0x00000000, 0x00000000}
+};
+
+static const struct phy_reg x2_port1_config_regs[] = {
+ {0x00000c94, 0xc80060fa},
+ {0x00000c80, 0xcf47abea},
+ {0x00000c90, 0x10a0840b},
+ {0x00000ca8, 0xdf04010a},
+ {0x00000d00, 0x57050060},
+ {0x00000d10, 0x0030001c},
+ {0x00000d38, 0x5f004444},
+ {0x00000d3c, 0x78464204},
+ {0x00000d48, 0x7821f940},
+ {0x00000d4c, 0xb2000433},
+ {0x00000a94, 0xc80060fa},
+ {0x00000a80, 0x5a166ed8},
+ {0x00000a90, 0x10a0540b},
+ {0x00000aa8, 0x7a01010a},
+ {0x00000b00, 0xef053460},
+ {0x00000b10, 0xa030101c},
+ {0x00000b38, 0xdf808444},
+ {0x00000b3c, 0xc8422204},
+ {0x00000b40, 0x0180088c},
+ {0x00000b74, 0x00000000},
+ {0x00000894, 0xc80060fa},
+ {0x00000880, 0x4d4f21d0},
+ {0x00000890, 0x10a0540b},
+ {0x000008a8, 0x5601010a},
+ {0x00000900, 0xef053460},
+ {0x00000910, 0x8030101c},
+ {0x00000938, 0xdf808444},
+ {0x0000093c, 0xc8422204},
+ {0x00000940, 0x0180088c},
+ {0x00000974, 0x00000000},
+ {0x00000000, 0x00000000}
+};
+
+static const struct phy_reg x2_port2_config_regs[] = {
+ {0x00001294, 0xc80060fa},
+ {0x00001280, 0x08130cea},
+ {0x00001290, 0x10a0140b},
+ {0x000012a8, 0xd704010a},
+ {0x00001300, 0x8d050060},
+ {0x00001310, 0x0030001c},
+ {0x00001338, 0xdf008444},
+ {0x0000133c, 0x78422204},
+ {0x00001348, 0x7821f940},
+ {0x0000134c, 0x5a000433},
+ {0x00001094, 0xc80060fa},
+ {0x00001080, 0xade75dd8},
+ {0x00001090, 0x10a0540b},
+ {0x000010a8, 0xb101010a},
+ {0x00001100, 0x33053460},
+ {0x00001110, 0x0030101c},
+ {0x00001138, 0xdf808444},
+ {0x0000113c, 0xc8422204},
+ {0x00001140, 0x8180088c},
+ {0x00001174, 0x00000000},
+ {0x00000e94, 0xc80060fa},
+ {0x00000e80, 0x0fbf16d0},
+ {0x00000e90, 0x10a0540b},
+ {0x00000ea8, 0x7a01010a},
+ {0x00000f00, 0xf5053460},
+ {0x00000f10, 0xc030101c},
+ {0x00000f38, 0xdf808444},
+ {0x00000f3c, 0xc8422204},
+ {0x00000f40, 0x8180088c},
+ {0x00000000, 0x00000000}
+};
+
+static const struct phy_reg x2_port3_config_regs[] = {
+ {0x00001894, 0xc80060fa},
+ {0x00001880, 0x0f90fd6a},
+ {0x00001890, 0x10a0840b},
+ {0x000018a8, 0xdf04010a},
+ {0x00001900, 0x57050060},
+ {0x00001910, 0x0030001c},
+ {0x00001938, 0x5f004444},
+ {0x0000193c, 0x78464204},
+ {0x00001948, 0x7821f940},
+ {0x0000194c, 0xb2000433},
+ {0x00001694, 0xc80060fa},
+ {0x00001680, 0x0ef6d058},
+ {0x00001690, 0x10a0540b},
+ {0x000016a8, 0x7a01010a},
+ {0x00001700, 0x69053460},
+ {0x00001710, 0xa030101c},
+ {0x00001738, 0xdf808444},
+ {0x0000173c, 0xc8422204},
+ {0x00001740, 0x0180088c},
+ {0x00001774, 0x00000000},
+ {0x00001494, 0xc80060fa},
+ {0x00001480, 0xf9d34bd0},
+ {0x00001490, 0x10a0540b},
+ {0x000014a8, 0x7a01010a},
+ {0x00001500, 0x1b053460},
+ {0x00001510, 0x0030101c},
+ {0x00001538, 0xdf808444},
+ {0x0000153c, 0xc8422204},
+ {0x00001540, 0x8180088c},
+ {0x00001574, 0x00000000},
+ {0x00000000, 0x00000000}
+};
+
+static const struct phy_reg x4_port0_config_regs[] = {
+ {0x00000694, 0xc80060fa},
+ {0x00000680, 0x3d4f78fa},
+ {0x00000690, 0x10a0140b},
+ {0x000006a8, 0xdf04010a},
+ {0x00000700, 0x57050060},
+ {0x00000710, 0x0030001c},
+ {0x00000738, 0x5f004444},
+ {0x0000073c, 0x78464204},
+ {0x00000748, 0x7821f940},
+ {0x0000074c, 0xb2000433},
+ {0x00000494, 0xfe6030fa},
+ {0x00000480, 0x29ef5ed8},
+ {0x00000490, 0x10a0540b},
+ {0x000004a8, 0x7a01010a},
+ {0x00000500, 0xef053460},
+ {0x00000510, 0xe030101c},
+ {0x00000538, 0xdf808444},
+ {0x0000053c, 0xc8422204},
+ {0x00000540, 0x0180088c},
+ {0x00000574, 0x00000004},
+ {0x00000294, 0x23e030fa},
+ {0x00000280, 0xcb45b950},
+ {0x00000290, 0x10a0540b},
+ {0x000002a8, 0x8c01010a},
+ {0x00000300, 0xef053460},
+ {0x00000310, 0x8030101c},
+ {0x00000338, 0x41808444},
+ {0x0000033c, 0x32422204},
+ {0x00000340, 0x0180088c},
+ {0x00000374, 0x00000004},
+ {0x00000894, 0x5620b0fa},
+ {0x00000880, 0x4d4f21dc},
+ {0x00000890, 0x10a0540b},
+ {0x000008a8, 0x5601010a},
+ {0x00000900, 0xef053460},
+ {0x00000910, 0x8030101c},
+ {0x00000938, 0xdf808444},
+ {0x0000093c, 0xc8422204},
+ {0x00000940, 0x0180088c},
+ {0x00000974, 0x00000004},
+ {0x00000a94, 0xc91030fa},
+ {0x00000a80, 0x5a166ecc},
+ {0x00000a90, 0x10a0540b},
+ {0x00000aa8, 0x5d01010a},
+ {0x00000b00, 0xef053460},
+ {0x00000b10, 0xa030101c},
+ {0x00000b38, 0xdf808444},
+ {0x00000b3c, 0xc8422204},
+ {0x00000b40, 0x0180088c},
+ {0x00000b74, 0x00000004},
+ {0x00000000, 0x00000000}
+};
+
+static const struct phy_reg x4_port1_config_regs[] = {
+ {0x00000000, 0x00000000}
+};
+
+static const struct phy_reg x4_port2_config_regs[] = {
+ {0x00001294, 0x28f000fa},
+ {0x00001280, 0x08130cfa},
+ {0x00001290, 0x10c0140b},
+ {0x000012a8, 0xd704010a},
+ {0x00001300, 0x8d050060},
+ {0x00001310, 0x0030001c},
+ {0x00001338, 0xdf008444},
+ {0x0000133c, 0x78422204},
+ {0x00001348, 0x7821f940},
+ {0x0000134c, 0x5a000433},
+ {0x00001094, 0x2d20b0fa},
+ {0x00001080, 0xade75dd8},
+ {0x00001090, 0x10a0540b},
+ {0x000010a8, 0xb101010a},
+ {0x00001100, 0x33053460},
+ {0x00001110, 0x0030101c},
+ {0x00001138, 0xdf808444},
+ {0x0000113c, 0xc8422204},
+ {0x00001140, 0x8180088c},
+ {0x00001174, 0x00000004},
+ {0x00000e94, 0xd308d0fa},
+ {0x00000e80, 0x0fbf16d0},
+ {0x00000e90, 0x10a0540b},
+ {0x00000ea8, 0x2c01010a},
+ {0x00000f00, 0xf5053460},
+ {0x00000f10, 0xc030101c},
+ {0x00000f38, 0xdf808444},
+ {0x00000f3c, 0xc8422204},
+ {0x00000f40, 0x8180088c},
+ {0x00000f74, 0x00000004},
+ {0x00001494, 0x136850fa},
+ {0x00001480, 0xf9d34bdc},
+ {0x00001490, 0x10a0540b},
+ {0x000014a8, 0x5a01010a},
+ {0x00001500, 0x1b053460},
+ {0x00001510, 0x0030101c},
+ {0x00001538, 0xdf808444},
+ {0x0000153c, 0xc8422204},
+ {0x00001540, 0x8180088c},
+ {0x00001574, 0x00000004},
+ {0x00001694, 0x3050d0fa},
+ {0x00001680, 0x0ef6d04c},
+ {0x00001690, 0x10a0540b},
+ {0x000016a8, 0xe301010a},
+ {0x00001700, 0x69053460},
+ {0x00001710, 0xa030101c},
+ {0x00001738, 0xdf808444},
+ {0x0000173c, 0xc8422204},
+ {0x00001740, 0x0180088c},
+ {0x00001774, 0x00000004},
+ {0x00000000, 0x00000000}
+};
+
+static const struct phy_reg x4_port3_config_regs[] = {
+ {0x00000000, 0x00000000}
+};
+
+static const struct phy_reg *x1_config_regs[4] = {
+ x1_port0_config_regs,
+ x1_port1_config_regs,
+ x1_port2_config_regs,
+ x1_port3_config_regs
+};
+
+static const struct phy_reg *x2_config_regs[4] = {
+ x2_port0_config_regs,
+ x2_port1_config_regs,
+ x2_port2_config_regs,
+ x2_port3_config_regs
+};
+
+static const struct phy_reg *x4_config_regs[4] = {
+ x4_port0_config_regs,
+ x4_port1_config_regs,
+ x4_port2_config_regs,
+ x4_port3_config_regs
+};
+
+static const struct phy_reg **config_regs[3] = {
+ x1_config_regs,
+ x2_config_regs,
+ x4_config_regs,
+};
+
+int ipu6_isys_phy_powerup_ack(struct ipu_isys *isys, unsigned int phy_id)
+{
+ unsigned int i;
+ u32 val;
+ void __iomem *isys_base = isys->pdata->base;
+
+ val = readl(isys_base + CSI_REG_HUB_GPREG_PHY_CONTROL(phy_id));
+ val |= CSI_REG_HUB_GPREG_PHY_CONTROL_PWR_EN;
+ writel(val, isys_base + CSI_REG_HUB_GPREG_PHY_CONTROL(phy_id));
+
+ for (i = 0; i < LOOP; i++) {
+ if (readl(isys_base + CSI_REG_HUB_GPREG_PHY_STATUS(phy_id)) &
+ CSI_REG_HUB_GPREG_PHY_STATUS_POWER_ACK)
+ return 0;
+ usleep_range(100, 200);
+ }
+
+ dev_warn(&isys->adev->dev, "PHY%d powerup ack timeout", phy_id);
+
+ return -ETIMEDOUT;
+}
+
+int ipu6_isys_phy_powerdown_ack(struct ipu_isys *isys, unsigned int phy_id)
+{
+ unsigned int i;
+ u32 val;
+ void __iomem *isys_base = isys->pdata->base;
+
+ writel(0, isys_base + CSI_REG_HUB_GPREG_PHY_CONTROL(phy_id));
+ for (i = 0; i < LOOP; i++) {
+ usleep_range(10, 20);
+ val = readl(isys_base + CSI_REG_HUB_GPREG_PHY_STATUS(phy_id));
+ if (!(val & CSI_REG_HUB_GPREG_PHY_STATUS_POWER_ACK))
+ return 0;
+ }
+
+ dev_warn(&isys->adev->dev, "PHY %d poweroff ack timeout.\n", phy_id);
+
+ return -ETIMEDOUT;
+}
+
+int ipu6_isys_phy_reset(struct ipu_isys *isys, unsigned int phy_id,
+ bool assert)
+{
+ void __iomem *isys_base = isys->pdata->base;
+ u32 val;
+
+ val = readl(isys_base + CSI_REG_HUB_GPREG_PHY_CONTROL(phy_id));
+ if (assert)
+ val |= CSI_REG_HUB_GPREG_PHY_CONTROL_RESET;
+ else
+ val &= ~(CSI_REG_HUB_GPREG_PHY_CONTROL_RESET);
+
+ writel(val, isys_base + CSI_REG_HUB_GPREG_PHY_CONTROL(phy_id));
+
+ return 0;
+}
+
+int ipu6_isys_phy_ready(struct ipu_isys *isys, unsigned int phy_id)
+{
+ unsigned int i;
+ u32 val;
+ void __iomem *isys_base = isys->pdata->base;
+
+ for (i = 0; i < LOOP; i++) {
+ val = readl(isys_base + CSI_REG_HUB_GPREG_PHY_STATUS(phy_id));
+ dev_dbg(&isys->adev->dev, "PHY%d ready status 0x%x\n",
+ phy_id, val);
+ if (val & CSI_REG_HUB_GPREG_PHY_STATUS_PHY_READY)
+ return 0;
+ usleep_range(10, 20);
+ }
+
+ dev_warn(&isys->adev->dev, "PHY%d ready timeout\n", phy_id);
+
+ return -ETIMEDOUT;
+}
+
+int ipu6_isys_phy_common_init(struct ipu_isys *isys)
+{
+ unsigned int phy_id;
+ void __iomem *phy_base;
+ struct ipu_bus_device *adev = to_ipu_bus_device(&isys->adev->dev);
+ struct ipu_device *isp = adev->isp;
+ void __iomem *isp_base = isp->base;
+ struct v4l2_async_subdev *asd;
+ struct sensor_async_subdev *s_asd;
+ unsigned int i;
+
+ list_for_each_entry(asd, &isys->notifier.asd_list, asd_list) {
+ s_asd = container_of(asd, struct sensor_async_subdev, asd);
+ phy_id = s_asd->csi2.port / 4;
+ phy_base = isp_base + IPU6_ISYS_PHY_BASE(phy_id);
+
+ for (i = 0 ; i < ARRAY_SIZE(common_init_regs); i++) {
+ writel(common_init_regs[i].val,
+ phy_base + common_init_regs[i].reg);
+ }
+ }
+
+ return 0;
+}
+
+static int ipu6_isys_driver_port_to_phy_port(struct ipu_isys_csi2_config *cfg)
+{
+ int phy_port;
+ int ret;
+
+ if (!(cfg->nlanes == 4 || cfg->nlanes == 2 || cfg->nlanes == 1))
+ return -EINVAL;
+
+ /* B,F -> C0 A,E -> C1 C,G -> C2 D,H -> C4 */
+ /* normalize driver port number */
+ phy_port = cfg->port % 4;
+
+ /* swap port number only for A and B */
+ if (phy_port == 0)
+ phy_port = 1;
+ else if (phy_port == 1)
+ phy_port = 0;
+
+ ret = phy_port;
+
+ /* check validity per lane configuration */
+ if ((cfg->nlanes == 4) &&
+ !(phy_port == 0 || phy_port == 2))
+ ret = -EINVAL;
+ else if ((cfg->nlanes == 2 || cfg->nlanes == 1) &&
+ !(phy_port >= 0 && phy_port <= 3))
+ ret = -EINVAL;
+
+ return ret;
+}
+
+int ipu6_isys_phy_config(struct ipu_isys *isys)
+{
+ int phy_port;
+ unsigned int phy_id;
+ void __iomem *phy_base;
+ struct ipu_bus_device *adev = to_ipu_bus_device(&isys->adev->dev);
+ struct ipu_device *isp = adev->isp;
+ void __iomem *isp_base = isp->base;
+ const struct phy_reg **phy_config_regs;
+ struct v4l2_async_subdev *asd;
+ struct sensor_async_subdev *s_asd;
+ struct ipu_isys_csi2_config cfg;
+ int i;
+
+ list_for_each_entry(asd, &isys->notifier.asd_list, asd_list) {
+ s_asd = container_of(asd, struct sensor_async_subdev, asd);
+ cfg.port = s_asd->csi2.port;
+ cfg.nlanes = s_asd->csi2.nlanes;
+ phy_port = ipu6_isys_driver_port_to_phy_port(&cfg);
+ if (phy_port < 0) {
+ dev_err(&isys->adev->dev, "invalid port %d for lane %d",
+ cfg.port, cfg.nlanes);
+ return -ENXIO;
+ }
+
+ phy_id = cfg.port / 4;
+ phy_base = isp_base + IPU6_ISYS_PHY_BASE(phy_id);
+ dev_dbg(&isys->adev->dev, "port%d PHY%u lanes %u\n",
+ cfg.port, phy_id, cfg.nlanes);
+
+ phy_config_regs = config_regs[cfg.nlanes/2];
+ cfg.port = phy_port;
+ for (i = 0; phy_config_regs[cfg.port][i].reg; i++) {
+ writel(phy_config_regs[cfg.port][i].val,
+ phy_base + phy_config_regs[cfg.port][i].reg);
+ }
+ }
+
+ return 0;
+}
diff --git a/drivers/media/pci/intel/ipu6/ipu6-isys-phy.h b/drivers/media/pci/intel/ipu6/ipu6-isys-phy.h
new file mode 100644
index 0000000000000..10a1d88c3088d
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu6-isys-phy.h
@@ -0,0 +1,159 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2013 - 2020 Intel Corporation
+ */
+
+#ifndef IPU6_ISYS_PHY_H
+#define IPU6_ISYS_PHY_H
+
+/* bridge to phy in buttress reg map, each phy has 16 kbytes
+ * for tgl u/y, only 2 phys
+ */
+#define IPU6_ISYS_PHY_0_BASE 0x10000
+#define IPU6_ISYS_PHY_1_BASE 0x14000
+#define IPU6_ISYS_PHY_2_BASE 0x18000
+#define IPU6_ISYS_PHY_BASE(i) (0x10000 + (i) * 0x4000)
+
+/* ppi mapping per phy :
+ *
+ * x4x4:
+ * port0 - PPI range {0, 1, 2, 3, 4}
+ * port2 - PPI range {6, 7, 8, 9, 10}
+ *
+ * x4x2:
+ * port0 - PPI range {0, 1, 2, 3, 4}
+ * port2 - PPI range {6, 7, 8}
+ *
+ * x2x4:
+ * port0 - PPI range {0, 1, 2}
+ * port2 - PPI range {6, 7, 8, 9, 10}
+ *
+ * x2x2:
+ * port0 - PPI range {0, 1, 2}
+ * port1 - PPI range {3, 4, 5}
+ * port2 - PPI range {6, 7, 8}
+ * port3 - PPI range {9, 10, 11}
+ */
+
+/* cbbs config regs */
+#define PHY_CBBS1_BASE 0x0
+/* register offset */
+#define PHY_CBBS1_DFX_VMISCCTL 0x0
+#define PHY_CBBS1_DFX_VBYTESEL0 0x4
+#define PHY_CBBS1_DFX_VBYTESEL1 0x8
+#define PHY_CBBS1_VISA2OBS_CTRL_REG 0xc
+#define PHY_CBBS1_PGL_CTRL_REG 0x10
+#define PHY_CBBS1_RCOMP_CTRL_REG_1 0x14
+#define PHY_CBBS1_RCOMP_CTRL_REG_2 0x18
+#define PHY_CBBS1_RCOMP_CTRL_REG_3 0x1c
+#define PHY_CBBS1_RCOMP_CTRL_REG_4 0x20
+#define PHY_CBBS1_RCOMP_CTRL_REG_5 0x24
+#define PHY_CBBS1_RCOMP_STATUS_REG_1 0x28
+#define PHY_CBBS1_RCOMP_STATUS_REG_2 0x2c
+#define PHY_CBBS1_CLOCK_CTRL_REG 0x30
+#define PHY_CBBS1_CBB_ISOLATION_REG 0x34
+#define PHY_CBBS1_CBB_PLL_CONTROL 0x38
+#define PHY_CBBS1_CBB_STATUS_REG 0x3c
+#define PHY_CBBS1_AFE_CONTROL_REG_1 0x40
+#define PHY_CBBS1_AFE_CONTROL_REG_2 0x44
+#define PHY_CBBS1_CBB_SPARE 0x48
+#define PHY_CBBS1_CRI_CLK_CONTROL 0x4c
+
+/* dbbs shared, i = [0..11] */
+#define PHY_DBBS_SHARED(ppi) ((ppi) * 0x200 + 0x200)
+/* register offset */
+#define PHY_DBBDFE_DFX_V1MISCCTL 0x0
+#define PHY_DBBDFE_DFX_V1BYTESEL0 0x4
+#define PHY_DBBDFE_DFX_V1BYTESEL1 0x8
+#define PHY_DBBDFE_DFX_V2MISCCTL 0xc
+#define PHY_DBBDFE_DFX_V2BYTESEL0 0x10
+#define PHY_DBBDFE_DFX_V2BYTESEL1 0x14
+#define PHY_DBBDFE_GBLCTL 0x18
+#define PHY_DBBDFE_GBL_STATUS 0x1c
+
+/* dbbs udln, i = [0..11] */
+#define IPU6_ISYS_PHY_DBBS_UDLN(ppi) ((ppi) * 0x200 + 0x280)
+/* register offset */
+#define PHY_DBBUDLN_CTL 0x0
+#define PHY_DBBUDLN_CLK_CTL 0x4
+#define PHY_DBBUDLN_SOFT_RST_CTL 0x8
+#define PHY_DBBUDLN_STRAP_VALUES 0xc
+#define PHY_DBBUDLN_TXRX_CTL 0x10
+#define PHY_DBBUDLN_MST_SLV_INIT_CTL 0x14
+#define PHY_DBBUDLN_TX_TIMING_CTL0 0x18
+#define PHY_DBBUDLN_TX_TIMING_CTL1 0x1c
+#define PHY_DBBUDLN_TX_TIMING_CTL2 0x20
+#define PHY_DBBUDLN_TX_TIMING_CTL3 0x24
+#define PHY_DBBUDLN_RX_TIMING_CTL 0x28
+#define PHY_DBBUDLN_PPI_STATUS_CTL 0x2c
+#define PHY_DBBUDLN_PPI_STATUS 0x30
+#define PHY_DBBUDLN_ERR_CTL 0x34
+#define PHY_DBBUDLN_ERR_STATUS 0x38
+#define PHY_DBBUDLN_DFX_LPBK_CTL 0x3c
+#define PHY_DBBUDLN_DFX_PPI_CTL 0x40
+#define PHY_DBBUDLN_DFX_TX_DPHY_CTL 0x44
+#define PHY_DBBUDLN_DFX_TXRX_PRBSPAT_CTL 0x48
+#define PHY_DBBUDLN_DFX_TXRX_PRBSPAT_SEED 0x4c
+#define PHY_DBBUDLN_DFX_PRBSPAT_MAX_WRD_CNT 0x50
+#define PHY_DBBUDLN_DFX_PRBSPAT_STATUS 0x54
+#define PHY_DBBUDLN_DFX_PRBSPAT_WRD_CNT0_STATUS 0x58
+#define PHY_DBBUDLN_DFX_PRBSPAT_WRD_CNT1_STATUS 0x5c
+#define PHY_DBBUDLN_DFX_PRBSPAT_FF_ERR_STATUS 0x60
+#define PHY_DBBUDLN_DFX_PRBSPAT_FF_REF_STATUS 0x64
+#define PHY_DBBUDLN_DFX_PRBSPAT_FF_WRD_CNT0_STATUS 0x68
+#define PHY_DBBUDLN_DFX_PRBSPAT_FF_WRD_CNT1_STATUS 0x6c
+#define PHY_DBBUDLN_RSVD_CTL 0x70
+#define PHY_DBBUDLN_TINIT_DONE BIT(27)
+
+/* dbbs supar, i = [0..11] */
+#define IPU6_ISYS_PHY_DBBS_SUPAR(ppi) ((ppi) * 0x200 + 0x300)
+/* register offset */
+#define PHY_DBBSUPAR_TXRX_FUPAR_CTL 0x0
+#define PHY_DBBSUPAR_TXHS_AFE_CTL 0x4
+#define PHY_DBBSUPAR_TXHS_AFE_LEGDIS_CTL 0x8
+#define PHY_DBBSUPAR_TXHS_AFE_EQ_CTL 0xc
+#define PHY_DBBSUPAR_RXHS_AFE_CTL1 0x10
+#define PHY_DBBSUPAR_RXHS_AFE_PICTL1 0x14
+#define PHY_DBBSUPAR_TXRXLP_AFE_CTL 0x18
+#define PHY_DBBSUPAR_DFX_TXRX_STATUS 0x1c
+#define PHY_DBBSUPAR_DFX_TXRX_CTL 0x20
+#define PHY_DBBSUPAR_DFX_DIGMON_CTL 0x24
+#define PHY_DBBSUPAR_DFX_LOCMON_CTL 0x28
+#define PHY_DBBSUPAR_DFX_RCOMP_CTL1 0x2c
+#define PHY_DBBSUPAR_DFX_RCOMP_CTL2 0x30
+#define PHY_DBBSUPAR_CAL_TOP1 0x34
+#define PHY_DBBSUPAR_CAL_SHARED1 0x38
+#define PHY_DBBSUPAR_CAL_SHARED2 0x3c
+#define PHY_DBBSUPAR_CAL_CDR1 0x40
+#define PHY_DBBSUPAR_CAL_OCAL1 0x44
+#define PHY_DBBSUPAR_CAL_DCC_DLL1 0x48
+#define PHY_DBBSUPAR_CAL_DLL2 0x4c
+#define PHY_DBBSUPAR_CAL_DFX1 0x50
+#define PHY_DBBSUPAR_CAL_DFX2 0x54
+#define PHY_DBBSUPAR_CAL_DFX3 0x58
+#define PHY_BBSUPAR_CAL_DFX4 0x5c
+#define PHY_DBBSUPAR_CAL_DFX5 0x60
+#define PHY_DBBSUPAR_CAL_DFX6 0x64
+#define PHY_DBBSUPAR_CAL_DFX7 0x68
+#define PHY_DBBSUPAR_DFX_AFE_SPARE_CTL1 0x6c
+#define PHY_DBBSUPAR_DFX_AFE_SPARE_CTL2 0x70
+#define PHY_DBBSUPAR_SPARE 0x74
+
+/* sai, i = [0..11] */
+#define IPU6_ISYS_PHY_SAI 0xf800
+/* register offset */
+#define PHY_SAI_CTRL_REG0 0x40
+#define PHY_SAI_CTRL_REG0_1 0x44
+#define PHY_SAI_WR_REG0 0x48
+#define PHY_SAI_WR_REG0_1 0x4c
+#define PHY_SAI_RD_REG0 0x50
+#define PHY_SAI_RD_REG0_1 0x54
+
+int ipu6_isys_phy_powerup_ack(struct ipu_isys *isys, unsigned int phy_id);
+int ipu6_isys_phy_powerdown_ack(struct ipu_isys *isys, unsigned int phy_id);
+int ipu6_isys_phy_reset(struct ipu_isys *isys, unsigned int phy_id,
+ bool assert);
+int ipu6_isys_phy_ready(struct ipu_isys *isys, unsigned int phy_id);
+int ipu6_isys_phy_common_init(struct ipu_isys *isys);
+int ipu6_isys_phy_config(struct ipu_isys *isys);
+#endif
diff --git a/drivers/media/pci/intel/ipu6/ipu6-isys.c b/drivers/media/pci/intel/ipu6/ipu6-isys.c
new file mode 100644
index 0000000000000..b5a9e81db108a
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu6-isys.c
@@ -0,0 +1,174 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 Intel Corporation
+
+#include <linux/module.h>
+#include <media/v4l2-event.h>
+
+#include "ipu.h"
+#include "ipu-platform-regs.h"
+#include "ipu-trace.h"
+#include "ipu-isys.h"
+#include "ipu-platform-isys-csi2-reg.h"
+
+const struct ipu_isys_pixelformat ipu_isys_pfmts[] = {
+ {V4L2_PIX_FMT_SBGGR12, 16, 12, 0, MEDIA_BUS_FMT_SBGGR12_1X12,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW16},
+ {V4L2_PIX_FMT_SGBRG12, 16, 12, 0, MEDIA_BUS_FMT_SGBRG12_1X12,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW16},
+ {V4L2_PIX_FMT_SGRBG12, 16, 12, 0, MEDIA_BUS_FMT_SGRBG12_1X12,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW16},
+ {V4L2_PIX_FMT_SRGGB12, 16, 12, 0, MEDIA_BUS_FMT_SRGGB12_1X12,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW16},
+ {V4L2_PIX_FMT_SBGGR10, 16, 10, 0, MEDIA_BUS_FMT_SBGGR10_1X10,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW16},
+ {V4L2_PIX_FMT_SGBRG10, 16, 10, 0, MEDIA_BUS_FMT_SGBRG10_1X10,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW16},
+ {V4L2_PIX_FMT_SGRBG10, 16, 10, 0, MEDIA_BUS_FMT_SGRBG10_1X10,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW16},
+ {V4L2_PIX_FMT_SRGGB10, 16, 10, 0, MEDIA_BUS_FMT_SRGGB10_1X10,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW16},
+ {V4L2_PIX_FMT_SBGGR8, 8, 8, 0, MEDIA_BUS_FMT_SBGGR8_1X8,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW8},
+ {V4L2_PIX_FMT_SGBRG8, 8, 8, 0, MEDIA_BUS_FMT_SGBRG8_1X8,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW8},
+ {V4L2_PIX_FMT_SGRBG8, 8, 8, 0, MEDIA_BUS_FMT_SGRBG8_1X8,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW8},
+ {V4L2_PIX_FMT_SRGGB8, 8, 8, 0, MEDIA_BUS_FMT_SRGGB8_1X8,
+ IPU_FW_ISYS_FRAME_FORMAT_RAW8},
+ {}
+};
+
+struct ipu_trace_block isys_trace_blocks[] = {
+ {
+ .offset = IPU_TRACE_REG_IS_TRACE_UNIT_BASE,
+ .type = IPU_TRACE_BLOCK_TUN,
+ },
+ {
+ .offset = IPU_TRACE_REG_IS_SP_EVQ_BASE,
+ .type = IPU_TRACE_BLOCK_TM,
+ },
+ {
+ .offset = IPU_TRACE_REG_IS_SP_GPC_BASE,
+ .type = IPU_TRACE_BLOCK_GPC,
+ },
+ {
+ .offset = IPU_TRACE_REG_IS_ISL_GPC_BASE,
+ .type = IPU_TRACE_BLOCK_GPC,
+ },
+ {
+ .offset = IPU_TRACE_REG_IS_MMU_GPC_BASE,
+ .type = IPU_TRACE_BLOCK_GPC,
+ },
+ {
+ /* Note! this covers all 8 blocks */
+ .offset = IPU_TRACE_REG_CSI2_TM_BASE(0),
+ .type = IPU_TRACE_CSI2,
+ },
+ {
+ /* Note! this covers all 11 blocks */
+ .offset = IPU_TRACE_REG_CSI2_PORT_SIG2SIO_GR_BASE(0),
+ .type = IPU_TRACE_SIG2CIOS,
+ },
+ {
+ .offset = IPU_TRACE_REG_IS_GPREG_TRACE_TIMER_RST_N,
+ .type = IPU_TRACE_TIMER_RST,
+ },
+ {
+ .type = IPU_TRACE_BLOCK_END,
+ }
+};
+
+void isys_setup_hw(struct ipu_isys *isys)
+{
+ void __iomem *base = isys->pdata->base;
+ const u8 *thd = isys->pdata->ipdata->hw_variant.cdc_fifo_threshold;
+ u32 irqs = 0;
+ unsigned int i, nr;
+
+ nr = (ipu_ver == IPU_VER_6 || ipu_ver == IPU_VER_6EP) ?
+ IPU6_ISYS_CSI_PORT_NUM : IPU6SE_ISYS_CSI_PORT_NUM;
+
+ /* Enable irqs for all MIPI ports */
+ for (i = 0; i < nr; i++)
+ irqs |= IPU_ISYS_UNISPART_IRQ_CSI2(i);
+
+ writel(irqs, base + IPU_REG_ISYS_CSI_TOP_CTRL0_IRQ_EDGE);
+ writel(irqs, base + IPU_REG_ISYS_CSI_TOP_CTRL0_IRQ_LEVEL_NOT_PULSE);
+ writel(0xffffffff, base + IPU_REG_ISYS_CSI_TOP_CTRL0_IRQ_CLEAR);
+ writel(irqs, base + IPU_REG_ISYS_CSI_TOP_CTRL0_IRQ_MASK);
+ writel(irqs, base + IPU_REG_ISYS_CSI_TOP_CTRL0_IRQ_ENABLE);
+
+ irqs = ISYS_UNISPART_IRQS;
+ writel(irqs, base + IPU_REG_ISYS_UNISPART_IRQ_EDGE);
+ writel(irqs, base + IPU_REG_ISYS_UNISPART_IRQ_LEVEL_NOT_PULSE);
+ writel(0xffffffff, base + IPU_REG_ISYS_UNISPART_IRQ_CLEAR);
+ writel(irqs, base + IPU_REG_ISYS_UNISPART_IRQ_MASK);
+ writel(irqs, base + IPU_REG_ISYS_UNISPART_IRQ_ENABLE);
+
+ writel(0, base + IPU_REG_ISYS_UNISPART_SW_IRQ_REG);
+ writel(0, base + IPU_REG_ISYS_UNISPART_SW_IRQ_MUX_REG);
+
+ /* Write CDC FIFO threshold values for isys */
+ for (i = 0; i < isys->pdata->ipdata->hw_variant.cdc_fifos; i++)
+ writel(thd[i], base + IPU_REG_ISYS_CDC_THRESHOLD(i));
+}
+
+irqreturn_t isys_isr(struct ipu_bus_device *adev)
+{
+ struct ipu_isys *isys = ipu_bus_get_drvdata(adev);
+ void __iomem *base = isys->pdata->base;
+ u32 status_sw, status_csi;
+
+ spin_lock(&isys->power_lock);
+ if (!isys->power) {
+ spin_unlock(&isys->power_lock);
+ return IRQ_NONE;
+ }
+
+ status_csi = readl(isys->pdata->base +
+ IPU_REG_ISYS_CSI_TOP_CTRL0_IRQ_STATUS);
+ status_sw = readl(isys->pdata->base + IPU_REG_ISYS_UNISPART_IRQ_STATUS);
+
+ writel(ISYS_UNISPART_IRQS & ~IPU_ISYS_UNISPART_IRQ_SW,
+ base + IPU_REG_ISYS_UNISPART_IRQ_MASK);
+
+ do {
+ writel(status_csi, isys->pdata->base +
+ IPU_REG_ISYS_CSI_TOP_CTRL0_IRQ_CLEAR);
+ writel(status_sw, isys->pdata->base +
+ IPU_REG_ISYS_UNISPART_IRQ_CLEAR);
+
+ if (isys->isr_csi2_bits & status_csi) {
+ unsigned int i;
+
+ for (i = 0; i < isys->pdata->ipdata->csi2.nports; i++) {
+ /* irq from not enabled port */
+ if (!isys->csi2[i].base)
+ continue;
+ if (status_csi & IPU_ISYS_UNISPART_IRQ_CSI2(i))
+ ipu_isys_csi2_isr(&isys->csi2[i]);
+ }
+ }
+
+ writel(0, base + IPU_REG_ISYS_UNISPART_SW_IRQ_REG);
+
+ if (!isys_isr_one(adev))
+ status_sw = IPU_ISYS_UNISPART_IRQ_SW;
+ else
+ status_sw = 0;
+
+ status_csi = readl(isys->pdata->base +
+ IPU_REG_ISYS_CSI_TOP_CTRL0_IRQ_STATUS);
+ status_sw |= readl(isys->pdata->base +
+ IPU_REG_ISYS_UNISPART_IRQ_STATUS);
+ } while (((status_csi & isys->isr_csi2_bits) ||
+ (status_sw & IPU_ISYS_UNISPART_IRQ_SW)) &&
+ !isys->adev->isp->flr_done);
+
+ writel(ISYS_UNISPART_IRQS, base + IPU_REG_ISYS_UNISPART_IRQ_MASK);
+
+ spin_unlock(&isys->power_lock);
+
+ return IRQ_HANDLED;
+}
+
diff --git a/drivers/media/pci/intel/ipu6/ipu6-l-scheduler.c b/drivers/media/pci/intel/ipu6/ipu6-l-scheduler.c
new file mode 100644
index 0000000000000..77677ef75ae72
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu6-l-scheduler.c
@@ -0,0 +1,615 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 Intel Corporation
+
+#include "ipu-psys.h"
+#include "ipu6-ppg.h"
+
+extern bool enable_power_gating;
+
+struct sched_list {
+ struct list_head list;
+ /* to protect the list */
+ struct mutex lock;
+};
+
+static struct sched_list start_list = {
+ .list = LIST_HEAD_INIT(start_list.list),
+ .lock = __MUTEX_INITIALIZER(start_list.lock),
+};
+
+static struct sched_list stop_list = {
+ .list = LIST_HEAD_INIT(stop_list.list),
+ .lock = __MUTEX_INITIALIZER(stop_list.lock),
+};
+
+static struct sched_list *get_sc_list(enum SCHED_LIST type)
+{
+ /* for debug purposes */
+ WARN_ON(type != SCHED_START_LIST && type != SCHED_STOP_LIST);
+
+ if (type == SCHED_START_LIST)
+ return &start_list;
+ return &stop_list;
+}
+
+static bool is_kppg_in_list(struct ipu_psys_ppg *kppg, struct list_head *head)
+{
+ struct ipu_psys_ppg *tmp;
+
+ list_for_each_entry(tmp, head, sched_list) {
+ if (kppg == tmp)
+ return true;
+ }
+
+ return false;
+}
+
+void ipu_psys_scheduler_remove_kppg(struct ipu_psys_ppg *kppg,
+ enum SCHED_LIST type)
+{
+ struct sched_list *sc_list = get_sc_list(type);
+ struct ipu_psys_ppg *tmp0, *tmp1;
+ struct ipu_psys *psys = kppg->fh->psys;
+
+ mutex_lock(&sc_list->lock);
+ list_for_each_entry_safe(tmp0, tmp1, &sc_list->list, sched_list) {
+ if (tmp0 == kppg) {
+ dev_dbg(&psys->adev->dev,
+ "remove from %s list, kppg(%d 0x%p) state %d\n",
+ type == SCHED_START_LIST ? "start" : "stop",
+ kppg->kpg->pg->ID, kppg, kppg->state);
+ list_del_init(&kppg->sched_list);
+ }
+ }
+ mutex_unlock(&sc_list->lock);
+}
+
+void ipu_psys_scheduler_add_kppg(struct ipu_psys_ppg *kppg,
+ enum SCHED_LIST type)
+{
+ int cur_pri = kppg->pri_base + kppg->pri_dynamic;
+ struct sched_list *sc_list = get_sc_list(type);
+ struct ipu_psys *psys = kppg->fh->psys;
+ struct ipu_psys_ppg *tmp0, *tmp1;
+
+ dev_dbg(&psys->adev->dev,
+ "add to %s list, kppg(%d 0x%p) state %d prio(%d %d) fh 0x%p\n",
+ type == SCHED_START_LIST ? "start" : "stop",
+ kppg->kpg->pg->ID, kppg, kppg->state,
+ kppg->pri_base, kppg->pri_dynamic, kppg->fh);
+
+ mutex_lock(&sc_list->lock);
+ if (list_empty(&sc_list->list)) {
+ list_add(&kppg->sched_list, &sc_list->list);
+ goto out;
+ }
+
+ if (is_kppg_in_list(kppg, &sc_list->list)) {
+ dev_dbg(&psys->adev->dev, "kppg already in list\n");
+ goto out;
+ }
+
+ list_for_each_entry_safe(tmp0, tmp1, &sc_list->list, sched_list) {
+ int tmp_pri = tmp0->pri_base + tmp0->pri_dynamic;
+
+ dev_dbg(&psys->adev->dev,
+ "found kppg(%d 0x%p), state %d pri(%d %d) fh 0x%p\n",
+ tmp0->kpg->pg->ID, tmp0, tmp0->state,
+ tmp0->pri_base, tmp0->pri_dynamic, tmp0->fh);
+
+ if (type == SCHED_START_LIST && tmp_pri > cur_pri) {
+ list_add(&kppg->sched_list, tmp0->sched_list.prev);
+ goto out;
+ } else if (type == SCHED_STOP_LIST && tmp_pri < cur_pri) {
+ list_add(&kppg->sched_list, tmp0->sched_list.prev);
+ goto out;
+ }
+ }
+
+ list_add_tail(&kppg->sched_list, &sc_list->list);
+out:
+ mutex_unlock(&sc_list->lock);
+}
+
+static int ipu_psys_detect_resource_contention(struct ipu_psys_ppg *kppg)
+{
+ struct ipu_psys_resource_pool *try_res_pool;
+ struct ipu_psys *psys = kppg->fh->psys;
+ int ret = 0;
+ int state;
+
+ try_res_pool = kzalloc(sizeof(*try_res_pool), GFP_KERNEL);
+ if (IS_ERR_OR_NULL(try_res_pool))
+ return -ENOMEM;
+
+ mutex_lock(&kppg->mutex);
+ state = kppg->state;
+ mutex_unlock(&kppg->mutex);
+ if (state == PPG_STATE_STARTED || state == PPG_STATE_RUNNING ||
+ state == PPG_STATE_RESUMED)
+ goto exit;
+
+ ret = ipu_psys_resource_pool_init(try_res_pool);
+ if (ret < 0) {
+ dev_err(&psys->adev->dev, "unable to alloc pg resources\n");
+ WARN_ON(1);
+ goto exit;
+ }
+
+ ipu_psys_resource_copy(&psys->resource_pool_running, try_res_pool);
+ ret = ipu_psys_try_allocate_resources(&psys->adev->dev,
+ kppg->kpg->pg,
+ kppg->manifest,
+ try_res_pool);
+
+ ipu_psys_resource_pool_cleanup(try_res_pool);
+exit:
+ kfree(try_res_pool);
+
+ return ret;
+}
+
+static void ipu_psys_scheduler_ppg_sort(struct ipu_psys *psys, bool *stopping)
+{
+ struct ipu_psys_ppg *kppg, *tmp;
+ struct ipu_psys_scheduler *sched;
+ struct ipu_psys_fh *fh;
+
+ list_for_each_entry(fh, &psys->fhs, list) {
+ mutex_lock(&fh->mutex);
+ sched = &fh->sched;
+
+ if (list_empty(&sched->ppgs)) {
+ mutex_unlock(&fh->mutex);
+ continue;
+ }
+
+ list_for_each_entry_safe(kppg, tmp, &sched->ppgs, list) {
+ mutex_lock(&kppg->mutex);
+ if (kppg->state == PPG_STATE_START ||
+ kppg->state == PPG_STATE_RESUME) {
+ ipu_psys_scheduler_add_kppg(kppg,
+ SCHED_START_LIST);
+ } else if (kppg->state == PPG_STATE_RUNNING) {
+ ipu_psys_scheduler_add_kppg(kppg,
+ SCHED_STOP_LIST);
+ } else if (kppg->state == PPG_STATE_SUSPENDING ||
+ kppg->state == PPG_STATE_STOPPING) {
+ /* there are some suspending/stopping ppgs */
+ *stopping = true;
+ } else if (kppg->state == PPG_STATE_RESUMING ||
+ kppg->state == PPG_STATE_STARTING) {
+ /* how about kppg are resuming/starting? */
+ }
+ mutex_unlock(&kppg->mutex);
+ }
+ mutex_unlock(&fh->mutex);
+ }
+}
+
+static void ipu_psys_scheduler_update_start_ppg_priority(void)
+{
+ struct sched_list *sc_list = get_sc_list(SCHED_START_LIST);
+ struct ipu_psys_ppg *kppg, *tmp;
+
+ mutex_lock(&sc_list->lock);
+ if (!list_empty(&sc_list->list))
+ list_for_each_entry_safe(kppg, tmp, &sc_list->list, sched_list)
+ kppg->pri_dynamic--;
+ mutex_unlock(&sc_list->lock);
+}
+
+static bool ipu_psys_scheduler_switch_ppg(struct ipu_psys *psys)
+{
+ struct sched_list *sc_list = get_sc_list(SCHED_STOP_LIST);
+ struct ipu_psys_ppg *kppg;
+ bool resched = false;
+
+ mutex_lock(&sc_list->lock);
+ if (list_empty(&sc_list->list)) {
+ /* some ppgs are RESUMING/STARTING */
+ dev_dbg(&psys->adev->dev, "no candidated stop ppg\n");
+ mutex_unlock(&sc_list->lock);
+ return false;
+ }
+ kppg = list_first_entry(&sc_list->list, struct ipu_psys_ppg,
+ sched_list);
+ mutex_unlock(&sc_list->lock);
+
+ mutex_lock(&kppg->mutex);
+ if (!(kppg->state & PPG_STATE_STOP)) {
+ dev_dbg(&psys->adev->dev, "s_change:%s: %p %d -> %d\n",
+ __func__, kppg, kppg->state, PPG_STATE_SUSPEND);
+ kppg->state = PPG_STATE_SUSPEND;
+ resched = true;
+ }
+ mutex_unlock(&kppg->mutex);
+
+ return resched;
+}
+
+/*
+ * search all kppgs and sort them into start_list and stop_list, alway start
+ * first kppg(high priority) in start_list;
+ * if there is resource contention, it would switch kppgs in stop_list
+ * to suspend state one by one
+ */
+static bool ipu_psys_scheduler_ppg_start(struct ipu_psys *psys)
+{
+ struct sched_list *sc_list = get_sc_list(SCHED_START_LIST);
+ struct ipu_psys_ppg *kppg, *kppg0;
+ bool stopping_existed = false;
+ int ret;
+
+ ipu_psys_scheduler_ppg_sort(psys, &stopping_existed);
+
+ mutex_lock(&sc_list->lock);
+ if (list_empty(&sc_list->list)) {
+ dev_dbg(&psys->adev->dev, "no ppg to start\n");
+ mutex_unlock(&sc_list->lock);
+ return false;
+ }
+
+ list_for_each_entry_safe(kppg, kppg0,
+ &sc_list->list, sched_list) {
+ mutex_unlock(&sc_list->lock);
+
+ ret = ipu_psys_detect_resource_contention(kppg);
+ if (ret < 0) {
+ dev_dbg(&psys->adev->dev,
+ "ppg %d resource detect failed(%d)\n",
+ kppg->kpg->pg->ID, ret);
+ /*
+ * switch out other ppg in 2 cases:
+ * 1. resource contention
+ * 2. no suspending/stopping ppg
+ */
+ if (ret == -ENOSPC) {
+ if (!stopping_existed &&
+ ipu_psys_scheduler_switch_ppg(psys)) {
+ return true;
+ }
+ dev_dbg(&psys->adev->dev,
+ "ppg is suspending/stopping\n");
+ } else {
+ dev_err(&psys->adev->dev,
+ "detect resource error %d\n", ret);
+ }
+ } else {
+ kppg->pri_dynamic = 0;
+
+ mutex_lock(&kppg->mutex);
+ if (kppg->state == PPG_STATE_START)
+ ipu_psys_ppg_start(kppg);
+ else
+ ipu_psys_ppg_resume(kppg);
+ mutex_unlock(&kppg->mutex);
+
+ ipu_psys_scheduler_remove_kppg(kppg,
+ SCHED_START_LIST);
+ ipu_psys_scheduler_update_start_ppg_priority();
+ }
+ mutex_lock(&sc_list->lock);
+ }
+ mutex_unlock(&sc_list->lock);
+
+ return false;
+}
+
+static bool ipu_psys_scheduler_ppg_enqueue_bufset(struct ipu_psys *psys)
+{
+ struct ipu_psys_scheduler *sched;
+ struct ipu_psys_ppg *kppg;
+ struct ipu_psys_fh *fh;
+ bool resched = false;
+
+ list_for_each_entry(fh, &psys->fhs, list) {
+ mutex_lock(&fh->mutex);
+ sched = &fh->sched;
+ if (list_empty(&sched->ppgs)) {
+ mutex_unlock(&fh->mutex);
+ continue;
+ }
+
+ list_for_each_entry(kppg, &sched->ppgs, list) {
+ if (ipu_psys_ppg_enqueue_bufsets(kppg))
+ resched = true;
+ }
+ mutex_unlock(&fh->mutex);
+ }
+
+ return resched;
+}
+
+/*
+ * This function will check all kppgs within fhs, and if kppg state
+ * is STOP or SUSPEND, l-scheduler will call ppg function to stop
+ * or suspend it and update stop list
+ */
+
+static bool ipu_psys_scheduler_ppg_halt(struct ipu_psys *psys)
+{
+ struct ipu_psys_scheduler *sched;
+ struct ipu_psys_ppg *kppg, *tmp;
+ struct ipu_psys_fh *fh;
+ bool stopping_exit = false;
+
+ list_for_each_entry(fh, &psys->fhs, list) {
+ mutex_lock(&fh->mutex);
+ sched = &fh->sched;
+ if (list_empty(&sched->ppgs)) {
+ mutex_unlock(&fh->mutex);
+ continue;
+ }
+
+ list_for_each_entry_safe(kppg, tmp, &sched->ppgs, list) {
+ mutex_lock(&kppg->mutex);
+ if (kppg->state & PPG_STATE_STOP) {
+ ipu_psys_ppg_stop(kppg);
+ ipu_psys_scheduler_remove_kppg(kppg,
+ SCHED_STOP_LIST);
+ } else if (kppg->state == PPG_STATE_SUSPEND) {
+ ipu_psys_ppg_suspend(kppg);
+ ipu_psys_scheduler_remove_kppg(kppg,
+ SCHED_STOP_LIST);
+ } else if (kppg->state == PPG_STATE_SUSPENDING ||
+ kppg->state == PPG_STATE_STOPPING) {
+ stopping_exit = true;
+ }
+ mutex_unlock(&kppg->mutex);
+ }
+ mutex_unlock(&fh->mutex);
+ }
+ return stopping_exit;
+}
+
+static void ipu_psys_update_ppg_state_by_kcmd(struct ipu_psys *psys,
+ struct ipu_psys_ppg *kppg,
+ struct ipu_psys_kcmd *kcmd)
+{
+ int old_ppg_state = kppg->state;
+
+ /*
+ * Respond kcmd when ppg is in stable state:
+ * STARTED/RESUMED/RUNNING/SUSPENDED/STOPPED
+ */
+ if (kppg->state == PPG_STATE_STARTED ||
+ kppg->state == PPG_STATE_RESUMED ||
+ kppg->state == PPG_STATE_RUNNING) {
+ if (kcmd->state == KCMD_STATE_PPG_START)
+ ipu_psys_kcmd_complete(kppg, kcmd, 0);
+ else if (kcmd->state == KCMD_STATE_PPG_STOP)
+ kppg->state = PPG_STATE_STOP;
+ } else if (kppg->state == PPG_STATE_SUSPENDED) {
+ if (kcmd->state == KCMD_STATE_PPG_START)
+ ipu_psys_kcmd_complete(kppg, kcmd, 0);
+ else if (kcmd->state == KCMD_STATE_PPG_STOP)
+ /*
+ * Record the previous state
+ * because here need resume at first
+ */
+ kppg->state |= PPG_STATE_STOP;
+ else if (kcmd->state == KCMD_STATE_PPG_ENQUEUE)
+ kppg->state = PPG_STATE_RESUME;
+ } else if (kppg->state == PPG_STATE_STOPPED) {
+ if (kcmd->state == KCMD_STATE_PPG_START)
+ kppg->state = PPG_STATE_START;
+ else if (kcmd->state == KCMD_STATE_PPG_STOP)
+ ipu_psys_kcmd_complete(kppg, kcmd, 0);
+ else if (kcmd->state == KCMD_STATE_PPG_ENQUEUE) {
+ dev_err(&psys->adev->dev, "ppg %p stopped!\n", kppg);
+ ipu_psys_kcmd_complete(kppg, kcmd, -EIO);
+ }
+ }
+
+ if (old_ppg_state != kppg->state)
+ dev_dbg(&psys->adev->dev, "s_change:%s: %p %d -> %d\n",
+ __func__, kppg, old_ppg_state, kppg->state);
+}
+
+static void ipu_psys_scheduler_kcmd_set(struct ipu_psys *psys)
+{
+ struct ipu_psys_kcmd *kcmd;
+ struct ipu_psys_scheduler *sched;
+ struct ipu_psys_ppg *kppg, *tmp;
+ struct ipu_psys_fh *fh;
+
+ list_for_each_entry(fh, &psys->fhs, list) {
+ mutex_lock(&fh->mutex);
+ sched = &fh->sched;
+ if (list_empty(&sched->ppgs)) {
+ mutex_unlock(&fh->mutex);
+ continue;
+ }
+
+ list_for_each_entry_safe(kppg, tmp, &sched->ppgs, list) {
+ mutex_lock(&kppg->mutex);
+ if (list_empty(&kppg->kcmds_new_list)) {
+ mutex_unlock(&kppg->mutex);
+ continue;
+ };
+
+ kcmd = list_first_entry(&kppg->kcmds_new_list,
+ struct ipu_psys_kcmd, list);
+ ipu_psys_update_ppg_state_by_kcmd(psys, kppg, kcmd);
+ mutex_unlock(&kppg->mutex);
+ }
+ mutex_unlock(&fh->mutex);
+ }
+}
+
+static bool is_ready_to_enter_power_gating(struct ipu_psys *psys)
+{
+ struct ipu_psys_scheduler *sched;
+ struct ipu_psys_ppg *kppg, *tmp;
+ struct ipu_psys_fh *fh;
+
+ list_for_each_entry(fh, &psys->fhs, list) {
+ mutex_lock(&fh->mutex);
+ sched = &fh->sched;
+ if (list_empty(&sched->ppgs)) {
+ mutex_unlock(&fh->mutex);
+ continue;
+ }
+
+ list_for_each_entry_safe(kppg, tmp, &sched->ppgs, list) {
+ mutex_lock(&kppg->mutex);
+ if (!list_empty(&kppg->kcmds_new_list) ||
+ !list_empty(&kppg->kcmds_processing_list)) {
+ mutex_unlock(&kppg->mutex);
+ mutex_unlock(&fh->mutex);
+ return false;
+ }
+ if (!(kppg->state == PPG_STATE_RUNNING ||
+ kppg->state == PPG_STATE_STOPPED ||
+ kppg->state == PPG_STATE_SUSPENDED)) {
+ mutex_unlock(&kppg->mutex);
+ mutex_unlock(&fh->mutex);
+ return false;
+ }
+ mutex_unlock(&kppg->mutex);
+ }
+ mutex_unlock(&fh->mutex);
+ }
+
+ return true;
+}
+
+static bool has_pending_kcmd(struct ipu_psys *psys)
+{
+ struct ipu_psys_scheduler *sched;
+ struct ipu_psys_ppg *kppg, *tmp;
+ struct ipu_psys_fh *fh;
+
+ list_for_each_entry(fh, &psys->fhs, list) {
+ mutex_lock(&fh->mutex);
+ sched = &fh->sched;
+ if (list_empty(&sched->ppgs)) {
+ mutex_unlock(&fh->mutex);
+ continue;
+ }
+
+ list_for_each_entry_safe(kppg, tmp, &sched->ppgs, list) {
+ mutex_lock(&kppg->mutex);
+ if (!list_empty(&kppg->kcmds_new_list) ||
+ !list_empty(&kppg->kcmds_processing_list)) {
+ mutex_unlock(&kppg->mutex);
+ mutex_unlock(&fh->mutex);
+ return true;
+ }
+ mutex_unlock(&kppg->mutex);
+ }
+ mutex_unlock(&fh->mutex);
+ }
+
+ return false;
+}
+
+static bool ipu_psys_scheduler_exit_power_gating(struct ipu_psys *psys)
+{
+ /* Assume power gating process can be aborted directly during START */
+ if (psys->power_gating == PSYS_POWER_GATED) {
+ dev_dbg(&psys->adev->dev, "powergating: exit ---\n");
+ ipu_psys_exit_power_gating(psys);
+ }
+ psys->power_gating = PSYS_POWER_NORMAL;
+ return false;
+}
+
+static bool ipu_psys_scheduler_enter_power_gating(struct ipu_psys *psys)
+{
+ struct ipu_psys_scheduler *sched;
+ struct ipu_psys_ppg *kppg, *tmp;
+ struct ipu_psys_fh *fh;
+
+ if (!enable_power_gating)
+ return false;
+
+ if (psys->power_gating == PSYS_POWER_NORMAL &&
+ is_ready_to_enter_power_gating(psys)) {
+ /* Enter power gating */
+ dev_dbg(&psys->adev->dev, "powergating: enter +++\n");
+ psys->power_gating = PSYS_POWER_GATING;
+ }
+
+ if (psys->power_gating != PSYS_POWER_GATING)
+ return false;
+
+ /* Suspend ppgs one by one */
+ list_for_each_entry(fh, &psys->fhs, list) {
+ mutex_lock(&fh->mutex);
+ sched = &fh->sched;
+ if (list_empty(&sched->ppgs)) {
+ mutex_unlock(&fh->mutex);
+ continue;
+ }
+
+ list_for_each_entry_safe(kppg, tmp, &sched->ppgs, list) {
+ mutex_lock(&kppg->mutex);
+ if (kppg->state == PPG_STATE_RUNNING) {
+ kppg->state = PPG_STATE_SUSPEND;
+ mutex_unlock(&kppg->mutex);
+ mutex_unlock(&fh->mutex);
+ return true;
+ }
+
+ if (kppg->state != PPG_STATE_SUSPENDED &&
+ kppg->state != PPG_STATE_STOPPED) {
+ /* Can't enter power gating */
+ mutex_unlock(&kppg->mutex);
+ mutex_unlock(&fh->mutex);
+ /* Need re-run l-scheduler to suspend ppg? */
+ return (kppg->state & PPG_STATE_STOP ||
+ kppg->state == PPG_STATE_SUSPEND);
+ }
+ mutex_unlock(&kppg->mutex);
+ }
+ mutex_unlock(&fh->mutex);
+ }
+
+ psys->power_gating = PSYS_POWER_GATED;
+ ipu_psys_enter_power_gating(psys);
+
+ return false;
+}
+
+void ipu_psys_run_next(struct ipu_psys *psys)
+{
+ /* Wake up scheduler due to unfinished work */
+ bool need_trigger = false;
+ /* Wait FW callback if there are stopping/suspending/running ppg */
+ bool wait_fw_finish = false;
+ /*
+ * Code below will crash if fhs is empty. Normally this
+ * shouldn't happen.
+ */
+ if (list_empty(&psys->fhs)) {
+ WARN_ON(1);
+ return;
+ }
+
+ /* Abort power gating process */
+ if (psys->power_gating != PSYS_POWER_NORMAL &&
+ has_pending_kcmd(psys))
+ need_trigger = ipu_psys_scheduler_exit_power_gating(psys);
+
+ /* Handle kcmd and related ppg switch */
+ if (psys->power_gating == PSYS_POWER_NORMAL) {
+ ipu_psys_scheduler_kcmd_set(psys);
+ wait_fw_finish = ipu_psys_scheduler_ppg_halt(psys);
+ need_trigger |= ipu_psys_scheduler_ppg_start(psys);
+ need_trigger |= ipu_psys_scheduler_ppg_enqueue_bufset(psys);
+ }
+ if (!(need_trigger || wait_fw_finish)) {
+ /* Nothing to do, enter power gating */
+ need_trigger = ipu_psys_scheduler_enter_power_gating(psys);
+ if (psys->power_gating == PSYS_POWER_GATING)
+ wait_fw_finish = ipu_psys_scheduler_ppg_halt(psys);
+ }
+
+ if (need_trigger && !wait_fw_finish) {
+ dev_dbg(&psys->adev->dev, "scheduler: wake up\n");
+ atomic_set(&psys->wakeup_count, 1);
+ wake_up_interruptible(&psys->sched_cmd_wq);
+ }
+}
diff --git a/drivers/media/pci/intel/ipu6/ipu6-platform-resources.h b/drivers/media/pci/intel/ipu6/ipu6-platform-resources.h
new file mode 100644
index 0000000000000..329901ac3acb6
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu6-platform-resources.h
@@ -0,0 +1,196 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2018 - 2020 Intel Corporation */
+
+#ifndef IPU6_PLATFORM_RESOURCES_H
+#define IPU6_PLATFORM_RESOURCES_H
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include "ipu-platform-resources.h"
+
+#define IPU6_FW_PSYS_N_PADDING_UINT8_IN_PROCESS_EXT_STRUCT 0
+
+enum {
+ IPU6_FW_PSYS_CMD_QUEUE_COMMAND_ID = 0,
+ IPU6_FW_PSYS_CMD_QUEUE_DEVICE_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG0_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG1_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG2_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG3_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG4_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG5_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG6_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG7_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG8_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG9_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG10_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG11_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG12_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG13_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG14_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG15_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG16_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG17_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG18_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG19_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG20_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG21_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG22_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG23_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG24_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG25_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG26_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG27_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG28_COMMAND_ID,
+ IPU6_FW_PSYS_CMD_QUEUE_PPG29_COMMAND_ID,
+ IPU6_FW_PSYS_N_PSYS_CMD_QUEUE_ID
+};
+
+enum {
+ IPU6_FW_PSYS_TRANSFER_VMEM0_TYPE_ID = 0,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_TYPE_ID,
+ IPU6_FW_PSYS_LB_VMEM_TYPE_ID,
+ IPU6_FW_PSYS_DMEM_TYPE_ID,
+ IPU6_FW_PSYS_VMEM_TYPE_ID,
+ IPU6_FW_PSYS_BAMEM_TYPE_ID,
+ IPU6_FW_PSYS_PMEM_TYPE_ID,
+ IPU6_FW_PSYS_N_MEM_TYPE_ID
+};
+
+enum ipu6_mem_id {
+ IPU6_FW_PSYS_VMEM0_ID = 0, /* ISP0 VMEM */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID, /* TRANSFER VMEM 0 */
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID, /* TRANSFER VMEM 1 */
+ IPU6_FW_PSYS_LB_VMEM_ID, /* LB VMEM */
+ IPU6_FW_PSYS_BAMEM0_ID, /* ISP0 BAMEM */
+ IPU6_FW_PSYS_DMEM0_ID, /* SPC0 Dmem */
+ IPU6_FW_PSYS_DMEM1_ID, /* SPP0 Dmem */
+ IPU6_FW_PSYS_DMEM2_ID, /* SPP1 Dmem */
+ IPU6_FW_PSYS_DMEM3_ID, /* ISP0 Dmem */
+ IPU6_FW_PSYS_PMEM0_ID, /* ISP0 PMEM */
+ IPU6_FW_PSYS_N_MEM_ID
+};
+
+enum {
+ IPU6_FW_PSYS_DEV_CHN_DMA_EXT0_ID = 0,
+ IPU6_FW_PSYS_DEV_CHN_DMA_EXT1_READ_ID,
+ IPU6_FW_PSYS_DEV_CHN_DMA_EXT1_WRITE_ID,
+ IPU6_FW_PSYS_DEV_CHN_DMA_INTERNAL_ID,
+ IPU6_FW_PSYS_DEV_CHN_DMA_ISA_ID,
+ IPU6_FW_PSYS_N_DEV_CHN_ID
+};
+
+enum {
+ IPU6_FW_PSYS_SP_CTRL_TYPE_ID = 0,
+ IPU6_FW_PSYS_SP_SERVER_TYPE_ID,
+ IPU6_FW_PSYS_VP_TYPE_ID,
+ IPU6_FW_PSYS_ACC_PSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_OSA_TYPE_ID,
+ IPU6_FW_PSYS_GDC_TYPE_ID,
+ IPU6_FW_PSYS_TNR_TYPE_ID,
+ IPU6_FW_PSYS_N_CELL_TYPE_ID
+};
+
+enum {
+ IPU6_FW_PSYS_SP0_ID = 0,
+ IPU6_FW_PSYS_VP0_ID,
+ IPU6_FW_PSYS_PSA_ACC_BNLM_ID,
+ IPU6_FW_PSYS_PSA_ACC_DM_ID,
+ IPU6_FW_PSYS_PSA_ACC_ACM_ID,
+ IPU6_FW_PSYS_PSA_ACC_GTC_YUV1_ID,
+ IPU6_FW_PSYS_BB_ACC_OFS_PIN_MAIN_ID,
+ IPU6_FW_PSYS_BB_ACC_OFS_PIN_DISPLAY_ID,
+ IPU6_FW_PSYS_BB_ACC_OFS_PIN_PP_ID,
+ IPU6_FW_PSYS_PSA_ACC_GAMMASTAR_ID,
+ IPU6_FW_PSYS_PSA_ACC_GLTM_ID,
+ IPU6_FW_PSYS_PSA_ACC_XNR_ID,
+ IPU6_FW_PSYS_PSA_VCSC_ID, /* VCSC */
+ IPU6_FW_PSYS_ISA_ICA_ID,
+ IPU6_FW_PSYS_ISA_LSC_ID,
+ IPU6_FW_PSYS_ISA_DPC_ID,
+ IPU6_FW_PSYS_ISA_SIS_A_ID,
+ IPU6_FW_PSYS_ISA_SIS_B_ID,
+ IPU6_FW_PSYS_ISA_B2B_ID,
+ IPU6_FW_PSYS_ISA_B2R_R2I_SIE_ID,
+ IPU6_FW_PSYS_ISA_R2I_DS_A_ID,
+ IPU6_FW_PSYS_ISA_R2I_DS_B_ID,
+ IPU6_FW_PSYS_ISA_AWB_ID,
+ IPU6_FW_PSYS_ISA_AE_ID,
+ IPU6_FW_PSYS_ISA_AF_ID,
+ IPU6_FW_PSYS_ISA_DOL_ID,
+ IPU6_FW_PSYS_ISA_ICA_MEDIUM_ID,
+ IPU6_FW_PSYS_ISA_X2B_MD_ID,
+ IPU6_FW_PSYS_ISA_X2B_SVE_RGBIR_ID,
+ IPU6_FW_PSYS_ISA_PAF_ID,
+ IPU6_FW_PSYS_BB_ACC_GDC0_ID,
+ IPU6_FW_PSYS_BB_ACC_TNR_ID,
+ IPU6_FW_PSYS_N_CELL_ID
+};
+
+enum {
+ IPU6_FW_PSYS_DEV_DFM_BB_FULL_PORT_ID = 0,
+ IPU6_FW_PSYS_DEV_DFM_BB_EMPTY_PORT_ID,
+ IPU6_FW_PSYS_DEV_DFM_ISL_FULL_PORT_ID,
+ IPU6_FW_PSYS_DEV_DFM_ISL_EMPTY_PORT_ID,
+ IPU6_FW_PSYS_DEV_DFM_LB_FULL_PORT_ID,
+ IPU6_FW_PSYS_DEV_DFM_LB_EMPTY_PORT_ID,
+};
+
+/* Excluding PMEM */
+#define IPU6_FW_PSYS_N_DATA_MEM_TYPE_ID (IPU6_FW_PSYS_N_MEM_TYPE_ID - 1)
+#define IPU6_FW_PSYS_N_DEV_DFM_ID \
+ (IPU6_FW_PSYS_DEV_DFM_LB_EMPTY_PORT_ID + 1)
+
+#define IPU6_FW_PSYS_VMEM0_MAX_SIZE 0x0800
+/* Transfer VMEM0 words, ref HAS Transfer*/
+#define IPU6_FW_PSYS_TRANSFER_VMEM0_MAX_SIZE 0x0800
+/* Transfer VMEM1 words, ref HAS Transfer*/
+#define IPU6_FW_PSYS_TRANSFER_VMEM1_MAX_SIZE 0x0800
+#define IPU6_FW_PSYS_LB_VMEM_MAX_SIZE 0x0400 /* LB VMEM words */
+#define IPU6_FW_PSYS_BAMEM0_MAX_SIZE 0x0800
+#define IPU6_FW_PSYS_DMEM0_MAX_SIZE 0x4000
+#define IPU6_FW_PSYS_DMEM1_MAX_SIZE 0x1000
+#define IPU6_FW_PSYS_DMEM2_MAX_SIZE 0x1000
+#define IPU6_FW_PSYS_DMEM3_MAX_SIZE 0x1000
+#define IPU6_FW_PSYS_PMEM0_MAX_SIZE 0x0500
+
+#define IPU6_FW_PSYS_DEV_CHN_DMA_EXT0_MAX_SIZE 30
+#define IPU6_FW_PSYS_DEV_CHN_GDC_MAX_SIZE 0
+#define IPU6_FW_PSYS_DEV_CHN_DMA_EXT1_READ_MAX_SIZE 30
+#define IPU6_FW_PSYS_DEV_CHN_DMA_EXT1_WRITE_MAX_SIZE 43
+#define IPU6_FW_PSYS_DEV_CHN_DMA_INTERNAL_MAX_SIZE 8
+#define IPU6_FW_PSYS_DEV_CHN_DMA_IPFD_MAX_SIZE 0
+#define IPU6_FW_PSYS_DEV_CHN_DMA_ISA_MAX_SIZE 2
+
+#define IPU6_FW_PSYS_DEV_DFM_BB_FULL_PORT_ID_MAX_SIZE 32
+#define IPU6_FW_PSYS_DEV_DFM_ISL_FULL_PORT_ID_MAX_SIZE 32
+#define IPU6_FW_PSYS_DEV_DFM_LB_FULL_PORT_ID_MAX_SIZE 32
+#define IPU6_FW_PSYS_DEV_DFM_BB_EMPTY_PORT_ID_MAX_SIZE 32
+#define IPU6_FW_PSYS_DEV_DFM_ISL_EMPTY_PORT_ID_MAX_SIZE 32
+#define IPU6_FW_PSYS_DEV_DFM_LB_EMPTY_PORT_ID_MAX_SIZE 32
+
+struct ipu6_fw_psys_program_manifest_ext {
+ u32 dfm_port_bitmap[IPU6_FW_PSYS_N_DEV_DFM_ID];
+ u32 dfm_active_port_bitmap[IPU6_FW_PSYS_N_DEV_DFM_ID];
+ u16 ext_mem_size[IPU6_FW_PSYS_N_DATA_MEM_TYPE_ID];
+ u16 ext_mem_offset[IPU6_FW_PSYS_N_DATA_MEM_TYPE_ID];
+ u16 dev_chn_size[IPU6_FW_PSYS_N_DEV_CHN_ID];
+ u16 dev_chn_offset[IPU6_FW_PSYS_N_DEV_CHN_ID];
+ u8 is_dfm_relocatable[IPU6_FW_PSYS_N_DEV_DFM_ID];
+ u8 dec_resources_input[IPU_FW_PSYS_MAX_INPUT_DEC_RESOURCES];
+ u8 dec_resources_input_terminal[IPU_FW_PSYS_MAX_INPUT_DEC_RESOURCES];
+ u8 dec_resources_output[IPU_FW_PSYS_MAX_OUTPUT_DEC_RESOURCES];
+ u8 dec_resources_output_terminal[IPU_FW_PSYS_MAX_OUTPUT_DEC_RESOURCES];
+ u8 padding[IPU_FW_PSYS_N_PADDING_UINT8_IN_PROGRAM_MANIFEST_EXT];
+};
+
+struct ipu6_fw_psys_process_ext {
+ u32 dfm_port_bitmap[IPU6_FW_PSYS_N_DEV_DFM_ID];
+ u32 dfm_active_port_bitmap[IPU6_FW_PSYS_N_DEV_DFM_ID];
+ u16 ext_mem_offset[IPU6_FW_PSYS_N_DATA_MEM_TYPE_ID];
+ u16 dev_chn_offset[IPU6_FW_PSYS_N_DEV_CHN_ID];
+ u8 ext_mem_id[IPU6_FW_PSYS_N_DATA_MEM_TYPE_ID];
+};
+
+#endif /* IPU6_PLATFORM_RESOURCES_H */
diff --git a/drivers/media/pci/intel/ipu6/ipu6-ppg.c b/drivers/media/pci/intel/ipu6/ipu6-ppg.c
new file mode 100644
index 0000000000000..8f6f413c03933
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu6-ppg.c
@@ -0,0 +1,560 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 Intel Corporation
+
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+
+#include <asm/cacheflush.h>
+
+#include "ipu6-ppg.h"
+
+static bool enable_suspend_resume;
+module_param(enable_suspend_resume, bool, 0664);
+MODULE_PARM_DESC(enable_suspend_resume, "enable fw ppg suspend/resume api");
+
+static struct ipu_psys_kcmd *
+ipu_psys_ppg_get_kcmd(struct ipu_psys_ppg *kppg, enum ipu_psys_cmd_state state)
+{
+ struct ipu_psys_kcmd *kcmd;
+
+ if (list_empty(&kppg->kcmds_new_list))
+ return NULL;
+
+ list_for_each_entry(kcmd, &kppg->kcmds_new_list, list) {
+ if (kcmd->state == state)
+ return kcmd;
+ }
+
+ return NULL;
+}
+
+struct ipu_psys_kcmd *ipu_psys_ppg_get_stop_kcmd(struct ipu_psys_ppg *kppg)
+{
+ struct ipu_psys_kcmd *kcmd;
+
+ WARN(!mutex_is_locked(&kppg->mutex), "ppg locking error");
+
+ if (list_empty(&kppg->kcmds_processing_list))
+ return NULL;
+
+ list_for_each_entry(kcmd, &kppg->kcmds_processing_list, list) {
+ if (kcmd->state == KCMD_STATE_PPG_STOP)
+ return kcmd;
+ }
+
+ return NULL;
+}
+
+static struct ipu_psys_buffer_set *
+__get_buf_set(struct ipu_psys_fh *fh, size_t buf_set_size)
+{
+ struct ipu_psys_buffer_set *kbuf_set;
+ struct ipu_psys_scheduler *sched = &fh->sched;
+
+ mutex_lock(&sched->bs_mutex);
+ list_for_each_entry(kbuf_set, &sched->buf_sets, list) {
+ if (!kbuf_set->buf_set_size &&
+ kbuf_set->size >= buf_set_size) {
+ kbuf_set->buf_set_size = buf_set_size;
+ mutex_unlock(&sched->bs_mutex);
+ return kbuf_set;
+ }
+ }
+
+ mutex_unlock(&sched->bs_mutex);
+ /* no suitable buffer available, allocate new one */
+ kbuf_set = kzalloc(sizeof(*kbuf_set), GFP_KERNEL);
+ if (!kbuf_set)
+ return NULL;
+
+ kbuf_set->kaddr = dma_alloc_attrs(&fh->psys->adev->dev,
+ buf_set_size, &kbuf_set->dma_addr,
+ GFP_KERNEL, 0);
+ if (!kbuf_set->kaddr) {
+ kfree(kbuf_set);
+ return NULL;
+ }
+
+ kbuf_set->buf_set_size = buf_set_size;
+ kbuf_set->size = buf_set_size;
+ mutex_lock(&sched->bs_mutex);
+ list_add(&kbuf_set->list, &sched->buf_sets);
+ mutex_unlock(&sched->bs_mutex);
+
+ return kbuf_set;
+}
+
+static struct ipu_psys_buffer_set *
+ipu_psys_create_buffer_set(struct ipu_psys_kcmd *kcmd,
+ struct ipu_psys_ppg *kppg)
+{
+ struct ipu_psys_fh *fh = kcmd->fh;
+ struct ipu_psys *psys = fh->psys;
+ struct ipu_psys_buffer_set *kbuf_set;
+ size_t buf_set_size;
+ u32 *keb;
+
+ buf_set_size = ipu_fw_psys_ppg_get_buffer_set_size(kcmd);
+
+ kbuf_set = __get_buf_set(fh, buf_set_size);
+ if (!kbuf_set) {
+ dev_err(&psys->adev->dev, "failed to create buffer set\n");
+ return NULL;
+ }
+
+ kbuf_set->buf_set = ipu_fw_psys_ppg_create_buffer_set(kcmd,
+ kbuf_set->kaddr,
+ 0);
+
+ ipu_fw_psys_ppg_buffer_set_vaddress(kbuf_set->buf_set,
+ kbuf_set->dma_addr);
+ keb = kcmd->kernel_enable_bitmap;
+ ipu_fw_psys_ppg_buffer_set_set_kernel_enable_bitmap(kbuf_set->buf_set,
+ keb);
+
+ return kbuf_set;
+}
+
+int ipu_psys_ppg_get_bufset(struct ipu_psys_kcmd *kcmd,
+ struct ipu_psys_ppg *kppg)
+{
+ struct ipu_psys *psys = kppg->fh->psys;
+ struct ipu_psys_buffer_set *kbuf_set;
+ unsigned int i;
+ int ret;
+
+ kbuf_set = ipu_psys_create_buffer_set(kcmd, kppg);
+ if (!kbuf_set) {
+ ret = -EINVAL;
+ goto error;
+ }
+ kcmd->kbuf_set = kbuf_set;
+ kbuf_set->kcmd = kcmd;
+
+ for (i = 0; i < kcmd->nbuffers; i++) {
+ struct ipu_fw_psys_terminal *terminal;
+ u32 buffer;
+
+ terminal = ipu_fw_psys_pg_get_terminal(kcmd, i);
+ if (!terminal)
+ continue;
+
+ buffer = (u32)kcmd->kbufs[i]->dma_addr +
+ kcmd->buffers[i].data_offset;
+
+ ret = ipu_fw_psys_ppg_set_buffer_set(kcmd, terminal, i, buffer);
+ if (ret) {
+ dev_err(&psys->adev->dev, "Unable to set bufset\n");
+ goto error;
+ }
+ }
+
+ return 0;
+
+error:
+ dev_err(&psys->adev->dev, "failed to get buffer set\n");
+ return ret;
+}
+
+void ipu_psys_ppg_complete(struct ipu_psys *psys, struct ipu_psys_ppg *kppg)
+{
+ u8 queue_id;
+ int old_ppg_state;
+
+ if (!psys || !kppg)
+ return;
+
+ mutex_lock(&kppg->mutex);
+ old_ppg_state = kppg->state;
+ if (kppg->state == PPG_STATE_STOPPING) {
+ struct ipu_psys_kcmd tmp_kcmd = {
+ .kpg = kppg->kpg,
+ };
+
+ kppg->state = PPG_STATE_STOPPED;
+ ipu_psys_free_resources(&kppg->kpg->resource_alloc,
+ &psys->resource_pool_running);
+ queue_id = ipu_fw_psys_ppg_get_base_queue_id(&tmp_kcmd);
+ ipu_psys_free_cmd_queue_resource(&psys->resource_pool_running,
+ queue_id);
+ pm_runtime_put(&psys->adev->dev);
+ } else {
+ if (kppg->state == PPG_STATE_SUSPENDING) {
+ kppg->state = PPG_STATE_SUSPENDED;
+ ipu_psys_free_resources(&kppg->kpg->resource_alloc,
+ &psys->resource_pool_running);
+ } else if (kppg->state == PPG_STATE_STARTED ||
+ kppg->state == PPG_STATE_RESUMED) {
+ kppg->state = PPG_STATE_RUNNING;
+ }
+
+ /* Kick l-scheduler thread for FW callback,
+ * also for checking if need to enter power gating
+ */
+ atomic_set(&psys->wakeup_count, 1);
+ wake_up_interruptible(&psys->sched_cmd_wq);
+ }
+ if (old_ppg_state != kppg->state)
+ dev_dbg(&psys->adev->dev, "s_change:%s: %p %d -> %d\n",
+ __func__, kppg, old_ppg_state, kppg->state);
+
+ mutex_unlock(&kppg->mutex);
+}
+
+int ipu_psys_ppg_start(struct ipu_psys_ppg *kppg)
+{
+ struct ipu_psys *psys = kppg->fh->psys;
+ struct ipu_psys_kcmd *kcmd = ipu_psys_ppg_get_kcmd(kppg,
+ KCMD_STATE_PPG_START);
+ unsigned int i;
+ int ret;
+
+ if (!kcmd) {
+ dev_err(&psys->adev->dev, "failed to find start kcmd!\n");
+ return -EINVAL;
+ }
+
+ dev_dbg(&psys->adev->dev, "start ppg id %d, addr 0x%p\n",
+ ipu_fw_psys_pg_get_id(kcmd), kppg);
+
+ kppg->state = PPG_STATE_STARTING;
+ for (i = 0; i < kcmd->nbuffers; i++) {
+ struct ipu_fw_psys_terminal *terminal;
+
+ terminal = ipu_fw_psys_pg_get_terminal(kcmd, i);
+ if (!terminal)
+ continue;
+
+ ret = ipu_fw_psys_terminal_set(terminal, i, kcmd, 0,
+ kcmd->buffers[i].len);
+ if (ret) {
+ dev_err(&psys->adev->dev, "Unable to set terminal\n");
+ return ret;
+ }
+ }
+
+ ret = ipu_fw_psys_pg_submit(kcmd);
+ if (ret) {
+ dev_err(&psys->adev->dev, "failed to submit kcmd!\n");
+ return ret;
+ }
+
+ ret = ipu_psys_allocate_resources(&psys->adev->dev,
+ kcmd->kpg->pg,
+ kcmd->pg_manifest,
+ &kcmd->kpg->resource_alloc,
+ &psys->resource_pool_running);
+ if (ret) {
+ dev_err(&psys->adev->dev, "alloc resources failed!\n");
+ return ret;
+ }
+
+ ret = pm_runtime_get_sync(&psys->adev->dev);
+ if (ret < 0) {
+ dev_err(&psys->adev->dev, "failed to power on psys\n");
+ goto error;
+ }
+
+ ret = ipu_psys_kcmd_start(psys, kcmd);
+ if (ret) {
+ ipu_psys_kcmd_complete(kppg, kcmd, -EIO);
+ goto error;
+ }
+
+ dev_dbg(&psys->adev->dev, "s_change:%s: %p %d -> %d\n",
+ __func__, kppg, kppg->state, PPG_STATE_STARTED);
+ kppg->state = PPG_STATE_STARTED;
+ ipu_psys_kcmd_complete(kppg, kcmd, 0);
+
+ return 0;
+
+error:
+ pm_runtime_put_noidle(&psys->adev->dev);
+ ipu_psys_reset_process_cell(&psys->adev->dev,
+ kcmd->kpg->pg,
+ kcmd->pg_manifest,
+ kcmd->kpg->pg->process_count);
+ ipu_psys_free_resources(&kppg->kpg->resource_alloc,
+ &psys->resource_pool_running);
+
+ dev_err(&psys->adev->dev, "failed to start ppg\n");
+ return ret;
+}
+
+int ipu_psys_ppg_resume(struct ipu_psys_ppg *kppg)
+{
+ struct ipu_psys *psys = kppg->fh->psys;
+ struct ipu_psys_kcmd tmp_kcmd = {
+ .kpg = kppg->kpg,
+ .fh = kppg->fh,
+ };
+ int ret;
+
+ dev_dbg(&psys->adev->dev, "resume ppg id %d, addr 0x%p\n",
+ ipu_fw_psys_pg_get_id(&tmp_kcmd), kppg);
+
+ kppg->state = PPG_STATE_RESUMING;
+ if (enable_suspend_resume) {
+ ret = ipu_psys_allocate_resources(&psys->adev->dev,
+ kppg->kpg->pg,
+ kppg->manifest,
+ &kppg->kpg->resource_alloc,
+ &psys->resource_pool_running);
+ if (ret) {
+ dev_err(&psys->adev->dev, "failed to allocate res\n");
+ return -EIO;
+ }
+
+ ret = ipu_fw_psys_ppg_resume(&tmp_kcmd);
+ if (ret) {
+ dev_err(&psys->adev->dev, "failed to resume ppg\n");
+ goto error;
+ }
+ } else {
+ kppg->kpg->pg->state = IPU_FW_PSYS_PROCESS_GROUP_READY;
+ ret = ipu_fw_psys_pg_submit(&tmp_kcmd);
+ if (ret) {
+ dev_err(&psys->adev->dev, "failed to submit kcmd!\n");
+ return ret;
+ }
+
+ ret = ipu_psys_allocate_resources(&psys->adev->dev,
+ kppg->kpg->pg,
+ kppg->manifest,
+ &kppg->kpg->resource_alloc,
+ &psys->resource_pool_running);
+ if (ret) {
+ dev_err(&psys->adev->dev, "failed to allocate res\n");
+ return ret;
+ }
+
+ ret = ipu_psys_kcmd_start(psys, &tmp_kcmd);
+ if (ret) {
+ dev_err(&psys->adev->dev, "failed to start kcmd!\n");
+ goto error;
+ }
+ }
+ dev_dbg(&psys->adev->dev, "s_change:%s: %p %d -> %d\n",
+ __func__, kppg, kppg->state, PPG_STATE_RESUMED);
+ kppg->state = PPG_STATE_RESUMED;
+
+ return 0;
+
+error:
+ ipu_psys_reset_process_cell(&psys->adev->dev,
+ kppg->kpg->pg,
+ kppg->manifest,
+ kppg->kpg->pg->process_count);
+ ipu_psys_free_resources(&kppg->kpg->resource_alloc,
+ &psys->resource_pool_running);
+
+ return ret;
+}
+
+int ipu_psys_ppg_stop(struct ipu_psys_ppg *kppg)
+{
+ struct ipu_psys_kcmd *kcmd = ipu_psys_ppg_get_kcmd(kppg,
+ KCMD_STATE_PPG_STOP);
+ struct ipu_psys *psys = kppg->fh->psys;
+ struct ipu_psys_kcmd kcmd_temp;
+ int ppg_id, ret = 0;
+
+ if (kcmd) {
+ list_move_tail(&kcmd->list, &kppg->kcmds_processing_list);
+ } else {
+ dev_dbg(&psys->adev->dev, "Exceptional stop happened!\n");
+ kcmd_temp.kpg = kppg->kpg;
+ kcmd_temp.fh = kppg->fh;
+ kcmd = &kcmd_temp;
+ /* delete kppg in stop list to avoid this ppg resuming */
+ ipu_psys_scheduler_remove_kppg(kppg, SCHED_STOP_LIST);
+ }
+
+ ppg_id = ipu_fw_psys_pg_get_id(kcmd);
+ dev_dbg(&psys->adev->dev, "stop ppg(%d, addr 0x%p)\n", ppg_id, kppg);
+
+ if (kppg->state & PPG_STATE_SUSPENDED) {
+ if (enable_suspend_resume) {
+ dev_dbg(&psys->adev->dev, "need resume before stop!\n");
+ kcmd_temp.kpg = kppg->kpg;
+ kcmd_temp.fh = kppg->fh;
+ ret = ipu_fw_psys_ppg_resume(&kcmd_temp);
+ if (ret)
+ dev_err(&psys->adev->dev,
+ "ppg(%d) failed to resume\n", ppg_id);
+ } else if (kcmd != &kcmd_temp) {
+ ipu_psys_free_cmd_queue_resource(
+ &psys->resource_pool_running,
+ ipu_fw_psys_ppg_get_base_queue_id(kcmd));
+ ipu_psys_kcmd_complete(kppg, kcmd, 0);
+ dev_dbg(&psys->adev->dev,
+ "s_change:%s %p %d -> %d\n", __func__,
+ kppg, kppg->state, PPG_STATE_STOPPED);
+ pm_runtime_put(&psys->adev->dev);
+ kppg->state = PPG_STATE_STOPPED;
+ return 0;
+ } else {
+ return 0;
+ }
+ }
+ dev_dbg(&psys->adev->dev, "s_change:%s %p %d -> %d\n",
+ __func__, kppg, kppg->state, PPG_STATE_STOPPING);
+ kppg->state = PPG_STATE_STOPPING;
+ ret = ipu_fw_psys_pg_abort(kcmd);
+ if (ret)
+ dev_err(&psys->adev->dev, "ppg(%d) failed to abort\n", ppg_id);
+
+ return ret;
+}
+
+int ipu_psys_ppg_suspend(struct ipu_psys_ppg *kppg)
+{
+ struct ipu_psys *psys = kppg->fh->psys;
+ struct ipu_psys_kcmd tmp_kcmd = {
+ .kpg = kppg->kpg,
+ .fh = kppg->fh,
+ };
+ int ppg_id = ipu_fw_psys_pg_get_id(&tmp_kcmd);
+ int ret = 0;
+
+ dev_dbg(&psys->adev->dev, "suspend ppg(%d, addr 0x%p)\n", ppg_id, kppg);
+
+ dev_dbg(&psys->adev->dev, "s_change:%s %p %d -> %d\n",
+ __func__, kppg, kppg->state, PPG_STATE_SUSPENDING);
+ kppg->state = PPG_STATE_SUSPENDING;
+ if (enable_suspend_resume)
+ ret = ipu_fw_psys_ppg_suspend(&tmp_kcmd);
+ else
+ ret = ipu_fw_psys_pg_abort(&tmp_kcmd);
+ if (ret)
+ dev_err(&psys->adev->dev, "failed to %s ppg(%d)\n",
+ enable_suspend_resume ? "suspend" : "stop", ret);
+
+ return ret;
+}
+
+static bool ipu_psys_ppg_is_bufset_existing(struct ipu_psys_ppg *kppg)
+{
+ return !list_empty(&kppg->kcmds_new_list);
+}
+
+/*
+ * ipu_psys_ppg_enqueue_bufsets - enqueue buffer sets to firmware
+ * Sometimes, if the ppg is at suspended state, this function will return true
+ * to reschedule and let the resume command scheduled before the buffer sets
+ * enqueuing.
+ */
+bool ipu_psys_ppg_enqueue_bufsets(struct ipu_psys_ppg *kppg)
+{
+ struct ipu_psys_kcmd *kcmd, *kcmd0;
+ struct ipu_psys *psys = kppg->fh->psys;
+ bool need_resume = false;
+
+ mutex_lock(&kppg->mutex);
+
+ if (kppg->state & (PPG_STATE_STARTED | PPG_STATE_RESUMED |
+ PPG_STATE_RUNNING)) {
+ if (ipu_psys_ppg_is_bufset_existing(kppg)) {
+ list_for_each_entry_safe(kcmd, kcmd0,
+ &kppg->kcmds_new_list, list) {
+ int ret;
+
+ if (kcmd->state != KCMD_STATE_PPG_ENQUEUE) {
+ need_resume = true;
+ break;
+ }
+
+ ret = ipu_fw_psys_ppg_enqueue_bufs(kcmd);
+ if (ret) {
+ dev_err(&psys->adev->dev,
+ "kppg 0x%p fail to qbufset %d",
+ kppg, ret);
+ break;
+ }
+ list_move_tail(&kcmd->list,
+ &kppg->kcmds_processing_list);
+ dev_dbg(&psys->adev->dev,
+ "kppg %d %p queue kcmd 0x%p fh 0x%p\n",
+ ipu_fw_psys_pg_get_id(kcmd),
+ kppg, kcmd, kcmd->fh);
+ }
+ }
+ }
+
+ mutex_unlock(&kppg->mutex);
+ return need_resume;
+}
+
+void ipu_psys_enter_power_gating(struct ipu_psys *psys)
+{
+ struct ipu_psys_scheduler *sched;
+ struct ipu_psys_ppg *kppg, *tmp;
+ struct ipu_psys_fh *fh;
+ int ret = 0;
+
+ list_for_each_entry(fh, &psys->fhs, list) {
+ mutex_lock(&fh->mutex);
+ sched = &fh->sched;
+ if (list_empty(&sched->ppgs)) {
+ mutex_unlock(&fh->mutex);
+ continue;
+ }
+
+ list_for_each_entry_safe(kppg, tmp, &sched->ppgs, list) {
+ mutex_lock(&kppg->mutex);
+ /*
+ * Only for SUSPENDED kppgs, STOPPED kppgs has already
+ * power down and new kppgs might come now.
+ */
+ if (kppg->state != PPG_STATE_SUSPENDED) {
+ mutex_unlock(&kppg->mutex);
+ continue;
+ }
+
+ ret = pm_runtime_put_autosuspend(&psys->adev->dev);
+ if (ret < 0) {
+ dev_err(&psys->adev->dev,
+ "failed to power gating off\n");
+ pm_runtime_get_sync(&psys->adev->dev);
+
+ }
+ mutex_unlock(&kppg->mutex);
+ }
+ mutex_unlock(&fh->mutex);
+ }
+}
+
+void ipu_psys_exit_power_gating(struct ipu_psys *psys)
+{
+ struct ipu_psys_scheduler *sched;
+ struct ipu_psys_ppg *kppg, *tmp;
+ struct ipu_psys_fh *fh;
+ int ret = 0;
+
+ list_for_each_entry(fh, &psys->fhs, list) {
+ mutex_lock(&fh->mutex);
+ sched = &fh->sched;
+ if (list_empty(&sched->ppgs)) {
+ mutex_unlock(&fh->mutex);
+ continue;
+ }
+
+ list_for_each_entry_safe(kppg, tmp, &sched->ppgs, list) {
+ mutex_lock(&kppg->mutex);
+ /* Only for SUSPENDED kppgs */
+ if (kppg->state != PPG_STATE_SUSPENDED) {
+ mutex_unlock(&kppg->mutex);
+ continue;
+ }
+
+ ret = pm_runtime_get_sync(&psys->adev->dev);
+ if (ret < 0) {
+ dev_err(&psys->adev->dev,
+ "failed to power gating\n");
+ pm_runtime_put_noidle(&psys->adev->dev);
+ }
+ mutex_unlock(&kppg->mutex);
+ }
+ mutex_unlock(&fh->mutex);
+ }
+}
diff --git a/drivers/media/pci/intel/ipu6/ipu6-ppg.h b/drivers/media/pci/intel/ipu6/ipu6-ppg.h
new file mode 100644
index 0000000000000..9ec1baf786313
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu6-ppg.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2020 Intel Corporation
+ */
+
+#ifndef IPU6_PPG_H
+#define IPU6_PPG_H
+
+#include "ipu-psys.h"
+/* starting from '2' in case of someone passes true or false */
+enum SCHED_LIST {
+ SCHED_START_LIST = 2,
+ SCHED_STOP_LIST
+};
+
+enum ipu_psys_power_gating_state {
+ PSYS_POWER_NORMAL = 0,
+ PSYS_POWER_GATING,
+ PSYS_POWER_GATED
+};
+
+int ipu_psys_ppg_get_bufset(struct ipu_psys_kcmd *kcmd,
+ struct ipu_psys_ppg *kppg);
+struct ipu_psys_kcmd *ipu_psys_ppg_get_stop_kcmd(struct ipu_psys_ppg *kppg);
+void ipu_psys_scheduler_remove_kppg(struct ipu_psys_ppg *kppg,
+ enum SCHED_LIST type);
+void ipu_psys_scheduler_add_kppg(struct ipu_psys_ppg *kppg,
+ enum SCHED_LIST type);
+int ipu_psys_ppg_start(struct ipu_psys_ppg *kppg);
+int ipu_psys_ppg_resume(struct ipu_psys_ppg *kppg);
+int ipu_psys_ppg_stop(struct ipu_psys_ppg *kppg);
+int ipu_psys_ppg_suspend(struct ipu_psys_ppg *kppg);
+void ipu_psys_ppg_complete(struct ipu_psys *psys, struct ipu_psys_ppg *kppg);
+bool ipu_psys_ppg_enqueue_bufsets(struct ipu_psys_ppg *kppg);
+void ipu_psys_enter_power_gating(struct ipu_psys *psys);
+void ipu_psys_exit_power_gating(struct ipu_psys *psys);
+
+#endif /* IPU6_PPG_H */
diff --git a/drivers/media/pci/intel/ipu6/ipu6-psys-gpc.c b/drivers/media/pci/intel/ipu6/ipu6-psys-gpc.c
new file mode 100644
index 0000000000000..b6b850a68398e
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu6-psys-gpc.c
@@ -0,0 +1,210 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 Intel Corporation
+
+#ifdef CONFIG_DEBUG_FS
+#include <linux/debugfs.h>
+#include <linux/pm_runtime.h>
+
+#include "ipu-psys.h"
+#include "ipu-platform-regs.h"
+
+/*
+ * GPC (Gerneral Performance Counters)
+ */
+#define IPU_PSYS_GPC_NUM 16
+
+#ifndef CONFIG_PM
+#define pm_runtime_get_sync(d) 0
+#define pm_runtime_put(d) 0
+#endif
+
+struct ipu_psys_gpc {
+ bool enable;
+ unsigned int route;
+ unsigned int source;
+ unsigned int sense;
+ unsigned int gpcindex;
+ void *prit;
+};
+
+struct ipu_psys_gpcs {
+ bool gpc_enable;
+ struct ipu_psys_gpc gpc[IPU_PSYS_GPC_NUM];
+ void *prit;
+};
+
+static int ipu6_psys_gpc_global_enable_get(void *data, u64 *val)
+{
+ struct ipu_psys_gpcs *psys_gpcs = data;
+ struct ipu_psys *psys = psys_gpcs->prit;
+
+ mutex_lock(&psys->mutex);
+
+ *val = psys_gpcs->gpc_enable;
+
+ mutex_unlock(&psys->mutex);
+ return 0;
+}
+
+static int ipu6_psys_gpc_global_enable_set(void *data, u64 val)
+{
+ struct ipu_psys_gpcs *psys_gpcs = data;
+ struct ipu_psys *psys = psys_gpcs->prit;
+ void __iomem *base;
+ int idx, res;
+
+ if (val != 0 && val != 1)
+ return -EINVAL;
+
+ if (!psys || !psys->pdata || !psys->pdata->base)
+ return -EINVAL;
+
+ mutex_lock(&psys->mutex);
+
+ base = psys->pdata->base + IPU_GPC_BASE;
+
+ res = pm_runtime_get_sync(&psys->adev->dev);
+ if (res < 0) {
+ pm_runtime_put(&psys->adev->dev);
+ mutex_unlock(&psys->mutex);
+ return res;
+ }
+
+ if (val == 0) {
+ writel(0x0, base + IPU_GPREG_TRACE_TIMER_RST);
+ writel(0x0, base + IPU_CDC_MMU_GPC_OVERALL_ENABLE);
+ writel(0xffff, base + IPU_CDC_MMU_GPC_SOFT_RESET);
+ psys_gpcs->gpc_enable = false;
+ for (idx = 0; idx < IPU_PSYS_GPC_NUM; idx++) {
+ psys_gpcs->gpc[idx].enable = 0;
+ psys_gpcs->gpc[idx].sense = 0;
+ psys_gpcs->gpc[idx].route = 0;
+ psys_gpcs->gpc[idx].source = 0;
+ }
+ pm_runtime_mark_last_busy(&psys->adev->dev);
+ pm_runtime_put_autosuspend(&psys->adev->dev);
+ } else {
+ /* Set gpc reg and start all gpc here.
+ * RST free running local timer.
+ */
+ writel(0x0, base + IPU_GPREG_TRACE_TIMER_RST);
+ writel(0x1, base + IPU_GPREG_TRACE_TIMER_RST);
+
+ for (idx = 0; idx < IPU_PSYS_GPC_NUM; idx++) {
+ /* Enable */
+ writel(psys_gpcs->gpc[idx].enable,
+ base + IPU_CDC_MMU_GPC_ENABLE0 + 4 * idx);
+ /* Setting (route/source/sense) */
+ writel((psys_gpcs->gpc[idx].sense
+ << IPU_GPC_SENSE_OFFSET)
+ + (psys_gpcs->gpc[idx].route
+ << IPU_GPC_ROUTE_OFFSET)
+ + (psys_gpcs->gpc[idx].source
+ << IPU_GPC_SOURCE_OFFSET),
+ base + IPU_CDC_MMU_GPC_CNT_SEL0 + 4 * idx);
+ }
+
+ /* Soft reset and Overall Enable. */
+ writel(0x0, base + IPU_CDC_MMU_GPC_OVERALL_ENABLE);
+ writel(0xffff, base + IPU_CDC_MMU_GPC_SOFT_RESET);
+ writel(0x1, base + IPU_CDC_MMU_GPC_OVERALL_ENABLE);
+
+ psys_gpcs->gpc_enable = true;
+ }
+
+ mutex_unlock(&psys->mutex);
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(psys_gpc_globe_enable_fops,
+ ipu6_psys_gpc_global_enable_get,
+ ipu6_psys_gpc_global_enable_set, "%llu\n");
+
+static int ipu6_psys_gpc_count_get(void *data, u64 *val)
+{
+ struct ipu_psys_gpc *psys_gpc = data;
+ struct ipu_psys *psys = psys_gpc->prit;
+ void __iomem *base;
+ int res;
+
+ if (!psys || !psys->pdata || !psys->pdata->base)
+ return -EINVAL;
+
+ mutex_lock(&psys->mutex);
+
+ base = psys->pdata->base + IPU_GPC_BASE;
+
+ res = pm_runtime_get_sync(&psys->adev->dev);
+ if (res < 0) {
+ pm_runtime_put(&psys->adev->dev);
+ mutex_unlock(&psys->mutex);
+ return res;
+ }
+
+ *val = readl(base + IPU_CDC_MMU_GPC_VALUE0 + 4 * psys_gpc->gpcindex);
+
+ mutex_unlock(&psys->mutex);
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(psys_gpc_count_fops,
+ ipu6_psys_gpc_count_get,
+ NULL, "%llu\n");
+
+int ipu_psys_gpc_init_debugfs(struct ipu_psys *psys)
+{
+ struct dentry *gpcdir;
+ struct dentry *dir;
+ struct dentry *file;
+ int idx;
+ char gpcname[10];
+ struct ipu_psys_gpcs *psys_gpcs;
+
+ psys_gpcs = devm_kzalloc(&psys->dev, sizeof(*psys_gpcs), GFP_KERNEL);
+ if (!psys_gpcs)
+ return -ENOMEM;
+
+ gpcdir = debugfs_create_dir("gpc", psys->debugfsdir);
+ if (IS_ERR(gpcdir))
+ return -ENOMEM;
+
+ psys_gpcs->prit = psys;
+ file = debugfs_create_file("enable", 0600, gpcdir, psys_gpcs,
+ &psys_gpc_globe_enable_fops);
+ if (IS_ERR(file))
+ goto err;
+
+ for (idx = 0; idx < IPU_PSYS_GPC_NUM; idx++) {
+ sprintf(gpcname, "gpc%d", idx);
+ dir = debugfs_create_dir(gpcname, gpcdir);
+ if (IS_ERR(dir))
+ goto err;
+
+ debugfs_create_bool("enable", 0600, dir,
+ &psys_gpcs->gpc[idx].enable);
+
+ debugfs_create_u32("source", 0600, dir,
+ &psys_gpcs->gpc[idx].source);
+
+ debugfs_create_u32("route", 0600, dir,
+ &psys_gpcs->gpc[idx].route);
+
+ debugfs_create_u32("sense", 0600, dir,
+ &psys_gpcs->gpc[idx].sense);
+
+ psys_gpcs->gpc[idx].gpcindex = idx;
+ psys_gpcs->gpc[idx].prit = psys;
+ file = debugfs_create_file("count", 0400, dir,
+ &psys_gpcs->gpc[idx],
+ &psys_gpc_count_fops);
+ if (IS_ERR(file))
+ goto err;
+ }
+
+ return 0;
+
+err:
+ debugfs_remove_recursive(gpcdir);
+ return -ENOMEM;
+}
+#endif
diff --git a/drivers/media/pci/intel/ipu6/ipu6-psys.c b/drivers/media/pci/intel/ipu6/ipu6-psys.c
new file mode 100644
index 0000000000000..294a6f1638e50
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu6-psys.c
@@ -0,0 +1,1032 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 Intel Corporation
+
+#include <linux/uaccess.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/highmem.h>
+#include <linux/mm.h>
+#include <linux/pm_runtime.h>
+#include <linux/kthread.h>
+#include <linux/init_task.h>
+#include <linux/version.h>
+#include <uapi/linux/sched/types.h>
+#include <linux/module.h>
+#include <linux/fs.h>
+
+#include "ipu.h"
+#include "ipu-psys.h"
+#include "ipu6-ppg.h"
+#include "ipu-platform-regs.h"
+#include "ipu-trace.h"
+
+static bool early_pg_transfer;
+module_param(early_pg_transfer, bool, 0664);
+MODULE_PARM_DESC(early_pg_transfer,
+ "Copy PGs back to user after resource allocation");
+
+bool enable_power_gating = true;
+module_param(enable_power_gating, bool, 0664);
+MODULE_PARM_DESC(enable_power_gating, "enable power gating");
+
+struct ipu_trace_block psys_trace_blocks[] = {
+ {
+ .offset = IPU_TRACE_REG_PS_TRACE_UNIT_BASE,
+ .type = IPU_TRACE_BLOCK_TUN,
+ },
+ {
+ .offset = IPU_TRACE_REG_PS_SPC_EVQ_BASE,
+ .type = IPU_TRACE_BLOCK_TM,
+ },
+ {
+ .offset = IPU_TRACE_REG_PS_SPP0_EVQ_BASE,
+ .type = IPU_TRACE_BLOCK_TM,
+ },
+ {
+ .offset = IPU_TRACE_REG_PS_SPC_GPC_BASE,
+ .type = IPU_TRACE_BLOCK_GPC,
+ },
+ {
+ .offset = IPU_TRACE_REG_PS_SPP0_GPC_BASE,
+ .type = IPU_TRACE_BLOCK_GPC,
+ },
+ {
+ .offset = IPU_TRACE_REG_PS_MMU_GPC_BASE,
+ .type = IPU_TRACE_BLOCK_GPC,
+ },
+ {
+ .offset = IPU_TRACE_REG_PS_GPREG_TRACE_TIMER_RST_N,
+ .type = IPU_TRACE_TIMER_RST,
+ },
+ {
+ .type = IPU_TRACE_BLOCK_END,
+ }
+};
+
+static void ipu6_set_sp_info_bits(void *base)
+{
+ int i;
+
+ writel(IPU_INFO_REQUEST_DESTINATION_IOSF,
+ base + IPU_REG_PSYS_INFO_SEG_0_CONFIG_ICACHE_MASTER);
+
+ for (i = 0; i < 4; i++)
+ writel(IPU_INFO_REQUEST_DESTINATION_IOSF,
+ base + IPU_REG_PSYS_INFO_SEG_CMEM_MASTER(i));
+ for (i = 0; i < 4; i++)
+ writel(IPU_INFO_REQUEST_DESTINATION_IOSF,
+ base + IPU_REG_PSYS_INFO_SEG_XMEM_MASTER(i));
+}
+
+#define PSYS_SUBDOMAINS_STATUS_WAIT_COUNT 1000
+void ipu_psys_subdomains_power(struct ipu_psys *psys, bool on)
+{
+ unsigned int i;
+ u32 val;
+
+ /* power domain req */
+ dev_dbg(&psys->adev->dev, "power %s psys sub-domains",
+ on ? "UP" : "DOWN");
+ if (on)
+ writel(IPU_PSYS_SUBDOMAINS_POWER_MASK,
+ psys->adev->isp->base + IPU_PSYS_SUBDOMAINS_POWER_REQ);
+ else
+ writel(0x0,
+ psys->adev->isp->base + IPU_PSYS_SUBDOMAINS_POWER_REQ);
+
+ i = 0;
+ do {
+ usleep_range(10, 20);
+ val = readl(psys->adev->isp->base +
+ IPU_PSYS_SUBDOMAINS_POWER_STATUS);
+ if (!(val & BIT(31))) {
+ dev_dbg(&psys->adev->dev,
+ "PS sub-domains req done with status 0x%x",
+ val);
+ break;
+ }
+ i++;
+ } while (i < PSYS_SUBDOMAINS_STATUS_WAIT_COUNT);
+
+ if (i == PSYS_SUBDOMAINS_STATUS_WAIT_COUNT)
+ dev_warn(&psys->adev->dev, "Psys sub-domains %s req timeout!",
+ on ? "UP" : "DOWN");
+}
+
+void ipu_psys_setup_hw(struct ipu_psys *psys)
+{
+ void __iomem *base = psys->pdata->base;
+ void __iomem *spc_regs_base =
+ base + psys->pdata->ipdata->hw_variant.spc_offset;
+ void *psys_iommu0_ctrl;
+ u32 irqs;
+ const u8 r3 = IPU_DEVICE_AB_GROUP1_TARGET_ID_R3_SPC_STATUS_REG;
+ const u8 r4 = IPU_DEVICE_AB_GROUP1_TARGET_ID_R4_SPC_MASTER_BASE_ADDR;
+ const u8 r5 = IPU_DEVICE_AB_GROUP1_TARGET_ID_R5_SPC_PC_STALL;
+
+ if (!psys->adev->isp->secure_mode) {
+ /* configure access blocker for non-secure mode */
+ writel(NCI_AB_ACCESS_MODE_RW,
+ base + IPU_REG_DMA_TOP_AB_GROUP1_BASE_ADDR +
+ IPU_REG_DMA_TOP_AB_RING_ACCESS_OFFSET(r3));
+ writel(NCI_AB_ACCESS_MODE_RW,
+ base + IPU_REG_DMA_TOP_AB_GROUP1_BASE_ADDR +
+ IPU_REG_DMA_TOP_AB_RING_ACCESS_OFFSET(r4));
+ writel(NCI_AB_ACCESS_MODE_RW,
+ base + IPU_REG_DMA_TOP_AB_GROUP1_BASE_ADDR +
+ IPU_REG_DMA_TOP_AB_RING_ACCESS_OFFSET(r5));
+ }
+ psys_iommu0_ctrl = base +
+ psys->pdata->ipdata->hw_variant.mmu_hw[0].offset +
+ IPU_MMU_INFO_OFFSET;
+ writel(IPU_INFO_REQUEST_DESTINATION_IOSF, psys_iommu0_ctrl);
+
+ ipu6_set_sp_info_bits(spc_regs_base + IPU_PSYS_REG_SPC_STATUS_CTRL);
+ ipu6_set_sp_info_bits(spc_regs_base + IPU_PSYS_REG_SPP0_STATUS_CTRL);
+
+ /* Enable FW interrupt #0 */
+ writel(0, base + IPU_REG_PSYS_GPDEV_FWIRQ(0));
+ irqs = IPU_PSYS_GPDEV_IRQ_FWIRQ(IPU_PSYS_GPDEV_FWIRQ0);
+ writel(irqs, base + IPU_REG_PSYS_GPDEV_IRQ_EDGE);
+ writel(irqs, base + IPU_REG_PSYS_GPDEV_IRQ_LEVEL_NOT_PULSE);
+ writel(0xffffffff, base + IPU_REG_PSYS_GPDEV_IRQ_CLEAR);
+ writel(irqs, base + IPU_REG_PSYS_GPDEV_IRQ_MASK);
+ writel(irqs, base + IPU_REG_PSYS_GPDEV_IRQ_ENABLE);
+}
+
+static struct ipu_psys_ppg *ipu_psys_identify_kppg(struct ipu_psys_kcmd *kcmd)
+{
+ struct ipu_psys_scheduler *sched = &kcmd->fh->sched;
+ struct ipu_psys_ppg *kppg, *tmp;
+
+ mutex_lock(&kcmd->fh->mutex);
+ if (list_empty(&sched->ppgs))
+ goto not_found;
+
+ list_for_each_entry_safe(kppg, tmp, &sched->ppgs, list) {
+ if (ipu_fw_psys_pg_get_token(kcmd)
+ != kppg->token)
+ continue;
+ mutex_unlock(&kcmd->fh->mutex);
+ return kppg;
+ }
+
+not_found:
+ mutex_unlock(&kcmd->fh->mutex);
+ return NULL;
+}
+
+/*
+ * Called to free up all resources associated with a kcmd.
+ * After this the kcmd doesn't anymore exist in the driver.
+ */
+static void ipu_psys_kcmd_free(struct ipu_psys_kcmd *kcmd)
+{
+ struct ipu_psys_ppg *kppg;
+ struct ipu_psys_scheduler *sched;
+
+ if (!kcmd)
+ return;
+
+ kppg = ipu_psys_identify_kppg(kcmd);
+ sched = &kcmd->fh->sched;
+
+ if (kcmd->kbuf_set) {
+ mutex_lock(&sched->bs_mutex);
+ kcmd->kbuf_set->buf_set_size = 0;
+ mutex_unlock(&sched->bs_mutex);
+ kcmd->kbuf_set = NULL;
+ }
+
+ if (kppg) {
+ mutex_lock(&kppg->mutex);
+ if (!list_empty(&kcmd->list))
+ list_del(&kcmd->list);
+ mutex_unlock(&kppg->mutex);
+ }
+
+ kfree(kcmd->pg_manifest);
+ kfree(kcmd->kbufs);
+ kfree(kcmd->buffers);
+ kfree(kcmd);
+}
+
+static struct ipu_psys_kcmd *ipu_psys_copy_cmd(struct ipu_psys_command *cmd,
+ struct ipu_psys_fh *fh)
+{
+ struct ipu_psys *psys = fh->psys;
+ struct ipu_psys_kcmd *kcmd;
+ struct ipu_psys_kbuffer *kpgbuf;
+ unsigned int i;
+ int ret, prevfd, fd;
+
+ fd = prevfd = -1;
+
+ if (cmd->bufcount > IPU_MAX_PSYS_CMD_BUFFERS)
+ return NULL;
+
+ if (!cmd->pg_manifest_size)
+ return NULL;
+
+ kcmd = kzalloc(sizeof(*kcmd), GFP_KERNEL);
+ if (!kcmd)
+ return NULL;
+
+ kcmd->state = KCMD_STATE_PPG_NEW;
+ kcmd->fh = fh;
+ INIT_LIST_HEAD(&kcmd->list);
+
+ mutex_lock(&fh->mutex);
+ fd = cmd->pg;
+ kpgbuf = ipu_psys_lookup_kbuffer(fh, fd);
+ if (!kpgbuf || !kpgbuf->sgt) {
+ dev_err(&psys->adev->dev, "%s kbuf %p with fd %d not found.\n",
+ __func__, kpgbuf, fd);
+ mutex_unlock(&fh->mutex);
+ goto error;
+ }
+
+ /* check and remap if possibe */
+ ret = ipu_psys_mapbuf_locked(fd, fh, kpgbuf);
+ if (ret) {
+ dev_err(&psys->adev->dev, "%s remap failed\n", __func__);
+ mutex_unlock(&fh->mutex);
+ goto error;
+ }
+
+ kpgbuf = ipu_psys_lookup_kbuffer(fh, fd);
+ if (!kpgbuf || !kpgbuf->sgt) {
+ WARN(1, "kbuf not found or unmapped.\n");
+ mutex_unlock(&fh->mutex);
+ goto error;
+ }
+ mutex_unlock(&fh->mutex);
+
+ kcmd->pg_user = kpgbuf->kaddr;
+ kcmd->kpg = __get_pg_buf(psys, kpgbuf->len);
+ if (!kcmd->kpg)
+ goto error;
+
+ memcpy(kcmd->kpg->pg, kcmd->pg_user, kcmd->kpg->pg_size);
+
+ kcmd->pg_manifest = kzalloc(cmd->pg_manifest_size, GFP_KERNEL);
+ if (!kcmd->pg_manifest)
+ goto error;
+
+ ret = copy_from_user(kcmd->pg_manifest, cmd->pg_manifest,
+ cmd->pg_manifest_size);
+ if (ret)
+ goto error;
+
+ kcmd->pg_manifest_size = cmd->pg_manifest_size;
+
+ kcmd->user_token = cmd->user_token;
+ kcmd->issue_id = cmd->issue_id;
+ kcmd->priority = cmd->priority;
+ if (kcmd->priority >= IPU_PSYS_CMD_PRIORITY_NUM)
+ goto error;
+
+ /*
+ * Kenel enable bitmap be used only.
+ */
+ memcpy(kcmd->kernel_enable_bitmap, cmd->kernel_enable_bitmap,
+ sizeof(cmd->kernel_enable_bitmap));
+
+ kcmd->nbuffers = ipu_fw_psys_pg_get_terminal_count(kcmd);
+ kcmd->buffers = kcalloc(kcmd->nbuffers, sizeof(*kcmd->buffers),
+ GFP_KERNEL);
+ if (!kcmd->buffers)
+ goto error;
+
+ kcmd->kbufs = kcalloc(kcmd->nbuffers, sizeof(kcmd->kbufs[0]),
+ GFP_KERNEL);
+ if (!kcmd->kbufs)
+ goto error;
+
+ /* should be stop cmd for ppg */
+ if (!cmd->buffers) {
+ kcmd->state = KCMD_STATE_PPG_STOP;
+ return kcmd;
+ }
+
+ if (!cmd->bufcount || kcmd->nbuffers > cmd->bufcount)
+ goto error;
+
+ ret = copy_from_user(kcmd->buffers, cmd->buffers,
+ kcmd->nbuffers * sizeof(*kcmd->buffers));
+ if (ret)
+ goto error;
+
+ for (i = 0; i < kcmd->nbuffers; i++) {
+ struct ipu_fw_psys_terminal *terminal;
+
+ terminal = ipu_fw_psys_pg_get_terminal(kcmd, i);
+ if (!terminal)
+ continue;
+
+ if (!(kcmd->buffers[i].flags & IPU_BUFFER_FLAG_DMA_HANDLE)) {
+ kcmd->state = KCMD_STATE_PPG_START;
+ continue;
+ }
+ if (kcmd->state == KCMD_STATE_PPG_START) {
+ dev_err(&psys->adev->dev,
+ "err: all buffer.flags&DMA_HANDLE must 0\n");
+ goto error;
+ }
+
+ mutex_lock(&fh->mutex);
+ fd = kcmd->buffers[i].base.fd;
+ kpgbuf = ipu_psys_lookup_kbuffer(fh, fd);
+ if (!kpgbuf || !kpgbuf->sgt) {
+ dev_err(&psys->adev->dev,
+ "%s kcmd->buffers[%d] %p fd %d not found.\n",
+ __func__, i, kpgbuf, fd);
+ mutex_unlock(&fh->mutex);
+ goto error;
+ }
+
+ ret = ipu_psys_mapbuf_locked(fd, fh, kpgbuf);
+ if (ret) {
+ dev_err(&psys->adev->dev, "%s remap failed\n",
+ __func__);
+ mutex_unlock(&fh->mutex);
+ goto error;
+ }
+
+ kpgbuf = ipu_psys_lookup_kbuffer(fh, fd);
+ if (!kpgbuf || !kpgbuf->sgt) {
+ WARN(1, "kbuf not found or unmapped.\n");
+ mutex_unlock(&fh->mutex);
+ goto error;
+ }
+ mutex_unlock(&fh->mutex);
+ kcmd->kbufs[i] = kpgbuf;
+ if (!kcmd->kbufs[i] || !kcmd->kbufs[i]->sgt ||
+ kcmd->kbufs[i]->len < kcmd->buffers[i].bytes_used)
+ goto error;
+ if ((kcmd->kbufs[i]->flags &
+ IPU_BUFFER_FLAG_NO_FLUSH) ||
+ (kcmd->buffers[i].flags &
+ IPU_BUFFER_FLAG_NO_FLUSH) ||
+ prevfd == kcmd->buffers[i].base.fd)
+ continue;
+
+ prevfd = kcmd->buffers[i].base.fd;
+ dma_sync_sg_for_device(&psys->adev->dev,
+ kcmd->kbufs[i]->sgt->sgl,
+ kcmd->kbufs[i]->sgt->orig_nents,
+ DMA_BIDIRECTIONAL);
+ }
+
+ if (kcmd->state != KCMD_STATE_PPG_START)
+ kcmd->state = KCMD_STATE_PPG_ENQUEUE;
+
+ return kcmd;
+error:
+ ipu_psys_kcmd_free(kcmd);
+
+ dev_dbg(&psys->adev->dev, "failed to copy cmd\n");
+
+ return NULL;
+}
+
+static struct ipu_psys_buffer_set *
+ipu_psys_lookup_kbuffer_set(struct ipu_psys *psys, u32 addr)
+{
+ struct ipu_psys_fh *fh;
+ struct ipu_psys_buffer_set *kbuf_set;
+ struct ipu_psys_scheduler *sched;
+
+ list_for_each_entry(fh, &psys->fhs, list) {
+ sched = &fh->sched;
+ mutex_lock(&sched->bs_mutex);
+ list_for_each_entry(kbuf_set, &sched->buf_sets, list) {
+ if (kbuf_set->buf_set &&
+ kbuf_set->buf_set->ipu_virtual_address == addr) {
+ mutex_unlock(&sched->bs_mutex);
+ return kbuf_set;
+ }
+ }
+ mutex_unlock(&sched->bs_mutex);
+ }
+
+ return NULL;
+}
+
+static struct ipu_psys_ppg *ipu_psys_lookup_ppg(struct ipu_psys *psys,
+ dma_addr_t pg_addr)
+{
+ struct ipu_psys_scheduler *sched;
+ struct ipu_psys_ppg *kppg, *tmp;
+ struct ipu_psys_fh *fh;
+
+ list_for_each_entry(fh, &psys->fhs, list) {
+ sched = &fh->sched;
+ mutex_lock(&fh->mutex);
+ if (list_empty(&sched->ppgs)) {
+ mutex_unlock(&fh->mutex);
+ continue;
+ }
+
+ list_for_each_entry_safe(kppg, tmp, &sched->ppgs, list) {
+ if (pg_addr != kppg->kpg->pg_dma_addr)
+ continue;
+ mutex_unlock(&fh->mutex);
+ return kppg;
+ }
+ mutex_unlock(&fh->mutex);
+ }
+
+ return NULL;
+}
+
+/*
+ * Move kcmd into completed state (due to running finished or failure).
+ * Fill up the event struct and notify waiters.
+ */
+void ipu_psys_kcmd_complete(struct ipu_psys_ppg *kppg,
+ struct ipu_psys_kcmd *kcmd, int error)
+{
+ struct ipu_psys_fh *fh = kcmd->fh;
+ struct ipu_psys *psys = fh->psys;
+
+ kcmd->ev.type = IPU_PSYS_EVENT_TYPE_CMD_COMPLETE;
+ kcmd->ev.user_token = kcmd->user_token;
+ kcmd->ev.issue_id = kcmd->issue_id;
+ kcmd->ev.error = error;
+ list_move_tail(&kcmd->list, &kppg->kcmds_finished_list);
+
+ if (kcmd->constraint.min_freq)
+ ipu_buttress_remove_psys_constraint(psys->adev->isp,
+ &kcmd->constraint);
+
+ if (!early_pg_transfer && kcmd->pg_user && kcmd->kpg->pg) {
+ struct ipu_psys_kbuffer *kbuf;
+
+ kbuf = ipu_psys_lookup_kbuffer_by_kaddr(kcmd->fh,
+ kcmd->pg_user);
+ if (kbuf && kbuf->valid)
+ memcpy(kcmd->pg_user,
+ kcmd->kpg->pg, kcmd->kpg->pg_size);
+ else
+ dev_dbg(&psys->adev->dev, "Skipping unmapped buffer\n");
+ }
+
+ kcmd->state = KCMD_STATE_PPG_COMPLETE;
+ wake_up_interruptible(&fh->wait);
+}
+
+/*
+ * Submit kcmd into psys queue. If running fails, complete the kcmd
+ * with an error.
+ *
+ * Found a runnable PG. Move queue to the list tail for round-robin
+ * scheduling and run the PG. Start the watchdog timer if the PG was
+ * started successfully. Enable PSYS power if requested.
+ */
+int ipu_psys_kcmd_start(struct ipu_psys *psys, struct ipu_psys_kcmd *kcmd)
+{
+ int ret;
+
+ if (psys->adev->isp->flr_done)
+ return -EIO;
+
+ if (early_pg_transfer && kcmd->pg_user && kcmd->kpg->pg)
+ memcpy(kcmd->pg_user, kcmd->kpg->pg, kcmd->kpg->pg_size);
+
+ ret = ipu_fw_psys_pg_start(kcmd);
+ if (ret) {
+ dev_err(&psys->adev->dev, "failed to start kcmd!\n");
+ return ret;
+ }
+
+ ipu_fw_psys_pg_dump(psys, kcmd, "run");
+
+ ret = ipu_fw_psys_pg_disown(kcmd);
+ if (ret) {
+ dev_err(&psys->adev->dev, "failed to start kcmd!\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int ipu_psys_kcmd_send_to_ppg_start(struct ipu_psys_kcmd *kcmd)
+{
+ struct ipu_psys_fh *fh = kcmd->fh;
+ struct ipu_psys_scheduler *sched = &fh->sched;
+ struct ipu_psys *psys = fh->psys;
+ struct ipu_psys_ppg *kppg;
+ struct ipu_psys_resource_pool *rpr;
+ int queue_id;
+ int ret;
+
+ rpr = &psys->resource_pool_running;
+
+ kppg = kzalloc(sizeof(*kppg), GFP_KERNEL);
+ if (!kppg)
+ return -ENOMEM;
+
+ kppg->fh = fh;
+ kppg->kpg = kcmd->kpg;
+ kppg->state = PPG_STATE_START;
+ kppg->pri_base = kcmd->priority;
+ kppg->pri_dynamic = 0;
+ INIT_LIST_HEAD(&kppg->list);
+
+ mutex_init(&kppg->mutex);
+ INIT_LIST_HEAD(&kppg->kcmds_new_list);
+ INIT_LIST_HEAD(&kppg->kcmds_processing_list);
+ INIT_LIST_HEAD(&kppg->kcmds_finished_list);
+ INIT_LIST_HEAD(&kppg->sched_list);
+
+ kppg->manifest = kzalloc(kcmd->pg_manifest_size, GFP_KERNEL);
+ if (!kppg->manifest) {
+ kfree(kppg);
+ return -ENOMEM;
+ }
+ memcpy(kppg->manifest, kcmd->pg_manifest,
+ kcmd->pg_manifest_size);
+
+ queue_id = ipu_psys_allocate_cmd_queue_resource(rpr);
+ if (queue_id == -ENOSPC) {
+ dev_err(&psys->adev->dev, "no available queue\n");
+ kfree(kppg->manifest);
+ kfree(kppg);
+ mutex_unlock(&psys->mutex);
+ return -ENOMEM;
+ }
+
+ /*
+ * set token as start cmd will immediately be followed by a
+ * enqueue cmd so that kppg could be retrieved.
+ */
+ kppg->token = (u64)kcmd->kpg;
+ ipu_fw_psys_pg_set_token(kcmd, kppg->token);
+ ipu_fw_psys_ppg_set_base_queue_id(kcmd, queue_id);
+ ret = ipu_fw_psys_pg_set_ipu_vaddress(kcmd,
+ kcmd->kpg->pg_dma_addr);
+ if (ret) {
+ ipu_psys_free_cmd_queue_resource(rpr, queue_id);
+ kfree(kppg->manifest);
+ kfree(kppg);
+ return -EIO;
+ }
+ memcpy(kcmd->pg_user, kcmd->kpg->pg, kcmd->kpg->pg_size);
+
+ mutex_lock(&fh->mutex);
+ list_add_tail(&kppg->list, &sched->ppgs);
+ mutex_unlock(&fh->mutex);
+
+ mutex_lock(&kppg->mutex);
+ list_add(&kcmd->list, &kppg->kcmds_new_list);
+ mutex_unlock(&kppg->mutex);
+
+ dev_dbg(&psys->adev->dev,
+ "START ppg(%d, 0x%p) kcmd 0x%p, queue %d\n",
+ ipu_fw_psys_pg_get_id(kcmd), kppg, kcmd, queue_id);
+
+ /* Kick l-scheduler thread */
+ atomic_set(&psys->wakeup_count, 1);
+ wake_up_interruptible(&psys->sched_cmd_wq);
+
+ return 0;
+}
+
+static int ipu_psys_kcmd_send_to_ppg(struct ipu_psys_kcmd *kcmd)
+{
+ struct ipu_psys_fh *fh = kcmd->fh;
+ struct ipu_psys *psys = fh->psys;
+ struct ipu_psys_ppg *kppg;
+ struct ipu_psys_resource_pool *rpr;
+ unsigned long flags;
+ u8 id;
+ bool resche = true;
+
+ rpr = &psys->resource_pool_running;
+ if (kcmd->state == KCMD_STATE_PPG_START)
+ return ipu_psys_kcmd_send_to_ppg_start(kcmd);
+
+ kppg = ipu_psys_identify_kppg(kcmd);
+ spin_lock_irqsave(&psys->pgs_lock, flags);
+ kcmd->kpg->pg_size = 0;
+ spin_unlock_irqrestore(&psys->pgs_lock, flags);
+ if (!kppg) {
+ dev_err(&psys->adev->dev, "token not match\n");
+ return -EINVAL;
+ }
+
+ kcmd->kpg = kppg->kpg;
+
+ dev_dbg(&psys->adev->dev, "%s ppg(%d, 0x%p) kcmd %p\n",
+ (kcmd->state == KCMD_STATE_PPG_STOP) ?
+ "STOP" : "ENQUEUE",
+ ipu_fw_psys_pg_get_id(kcmd), kppg, kcmd);
+
+ if (kcmd->state == KCMD_STATE_PPG_STOP) {
+ mutex_lock(&kppg->mutex);
+ if (kppg->state == PPG_STATE_STOPPED) {
+ dev_dbg(&psys->adev->dev,
+ "kppg 0x%p stopped!\n", kppg);
+ id = ipu_fw_psys_ppg_get_base_queue_id(kcmd);
+ ipu_psys_free_cmd_queue_resource(rpr, id);
+ ipu_psys_kcmd_complete(kppg, kcmd, 0);
+ pm_runtime_put(&psys->adev->dev);
+ resche = false;
+ } else {
+ list_add(&kcmd->list, &kppg->kcmds_new_list);
+ }
+ mutex_unlock(&kppg->mutex);
+ } else {
+ int ret;
+
+ ret = ipu_psys_ppg_get_bufset(kcmd, kppg);
+ if (ret)
+ return ret;
+
+ mutex_lock(&kppg->mutex);
+ list_add_tail(&kcmd->list, &kppg->kcmds_new_list);
+ mutex_unlock(&kppg->mutex);
+ }
+
+ if (resche) {
+ /* Kick l-scheduler thread */
+ atomic_set(&psys->wakeup_count, 1);
+ wake_up_interruptible(&psys->sched_cmd_wq);
+ }
+ return 0;
+}
+
+int ipu_psys_kcmd_new(struct ipu_psys_command *cmd, struct ipu_psys_fh *fh)
+{
+ struct ipu_psys *psys = fh->psys;
+ struct ipu_psys_kcmd *kcmd;
+ size_t pg_size;
+ int ret;
+
+ if (psys->adev->isp->flr_done)
+ return -EIO;
+
+ kcmd = ipu_psys_copy_cmd(cmd, fh);
+ if (!kcmd)
+ return -EINVAL;
+
+ pg_size = ipu_fw_psys_pg_get_size(kcmd);
+ if (pg_size > kcmd->kpg->pg_size) {
+ dev_dbg(&psys->adev->dev, "pg size mismatch %lu %lu\n",
+ pg_size, kcmd->kpg->pg_size);
+ ret = -EINVAL;
+ goto error;
+ }
+
+ if (ipu_fw_psys_pg_get_protocol(kcmd) !=
+ IPU_FW_PSYS_PROCESS_GROUP_PROTOCOL_PPG) {
+ dev_err(&psys->adev->dev, "No support legacy pg now\n");
+ ret = -EINVAL;
+ goto error;
+ }
+
+ if (cmd->min_psys_freq) {
+ kcmd->constraint.min_freq = cmd->min_psys_freq;
+ ipu_buttress_add_psys_constraint(psys->adev->isp,
+ &kcmd->constraint);
+ }
+
+ ret = ipu_psys_kcmd_send_to_ppg(kcmd);
+ if (ret)
+ goto error;
+
+ dev_dbg(&psys->adev->dev,
+ "IOC_QCMD: user_token:%llx issue_id:0x%llx pri:%d\n",
+ cmd->user_token, cmd->issue_id, cmd->priority);
+
+ return 0;
+
+error:
+ ipu_psys_kcmd_free(kcmd);
+
+ return ret;
+}
+
+static bool ipu_psys_kcmd_is_valid(struct ipu_psys *psys,
+ struct ipu_psys_kcmd *kcmd)
+{
+ struct ipu_psys_fh *fh;
+ struct ipu_psys_kcmd *kcmd0;
+ struct ipu_psys_ppg *kppg, *tmp;
+ struct ipu_psys_scheduler *sched;
+
+ list_for_each_entry(fh, &psys->fhs, list) {
+ sched = &fh->sched;
+ mutex_lock(&fh->mutex);
+ if (list_empty(&sched->ppgs)) {
+ mutex_unlock(&fh->mutex);
+ continue;
+ }
+ list_for_each_entry_safe(kppg, tmp, &sched->ppgs, list) {
+ mutex_lock(&kppg->mutex);
+ list_for_each_entry(kcmd0,
+ &kppg->kcmds_processing_list,
+ list) {
+ if (kcmd0 == kcmd) {
+ mutex_unlock(&kppg->mutex);
+ mutex_unlock(&fh->mutex);
+ return true;
+ }
+ }
+ mutex_unlock(&kppg->mutex);
+ }
+ mutex_unlock(&fh->mutex);
+ }
+
+ return false;
+}
+
+void ipu_psys_handle_events(struct ipu_psys *psys)
+{
+ struct ipu_psys_kcmd *kcmd;
+ struct ipu_fw_psys_event event;
+ struct ipu_psys_ppg *kppg;
+ bool error;
+ u32 hdl;
+ u16 cmd, status;
+ int res;
+
+ do {
+ memset(&event, 0, sizeof(event));
+ if (!ipu_fw_psys_rcv_event(psys, &event))
+ break;
+
+ if (!event.context_handle)
+ break;
+
+ dev_dbg(&psys->adev->dev, "ppg event: 0x%x, %d, status %d\n",
+ event.context_handle, event.command, event.status);
+
+ error = false;
+ /*
+ * event.command == CMD_RUN shows this is fw processing frame
+ * done as pPG mode, and event.context_handle should be pointer
+ * of buffer set; so we make use of this pointer to lookup
+ * kbuffer_set and kcmd
+ */
+ hdl = event.context_handle;
+ cmd = event.command;
+ status = event.status;
+
+ kppg = NULL;
+ kcmd = NULL;
+ if (cmd == IPU_FW_PSYS_PROCESS_GROUP_CMD_RUN) {
+ struct ipu_psys_buffer_set *kbuf_set;
+ /*
+ * Need change ppg state when the 1st running is done
+ * (after PPG started/resumed)
+ */
+ kbuf_set = ipu_psys_lookup_kbuffer_set(psys, hdl);
+ if (kbuf_set)
+ kcmd = kbuf_set->kcmd;
+ if (!kbuf_set || !kcmd)
+ error = true;
+ else
+ kppg = ipu_psys_identify_kppg(kcmd);
+ } else if (cmd == IPU_FW_PSYS_PROCESS_GROUP_CMD_STOP ||
+ cmd == IPU_FW_PSYS_PROCESS_GROUP_CMD_SUSPEND ||
+ cmd == IPU_FW_PSYS_PROCESS_GROUP_CMD_RESUME) {
+ /*
+ * STOP/SUSPEND/RESUME cmd event would run this branch;
+ * only stop cmd queued by user has stop_kcmd and need
+ * to notify user to dequeue.
+ */
+ kppg = ipu_psys_lookup_ppg(psys, hdl);
+ if (kppg) {
+ mutex_lock(&kppg->mutex);
+ if (kppg->state == PPG_STATE_STOPPING) {
+ kcmd = ipu_psys_ppg_get_stop_kcmd(kppg);
+ if (!kcmd)
+ error = true;
+ }
+ mutex_unlock(&kppg->mutex);
+ }
+ } else {
+ dev_err(&psys->adev->dev, "invalid event\n");
+ continue;
+ }
+
+ if (error || !kppg) {
+ dev_err(&psys->adev->dev, "event error, command %d\n",
+ cmd);
+ break;
+ }
+
+ dev_dbg(&psys->adev->dev, "event to kppg 0x%p, kcmd 0x%p\n",
+ kppg, kcmd);
+
+ ipu_psys_ppg_complete(psys, kppg);
+
+ if (kcmd && ipu_psys_kcmd_is_valid(psys, kcmd)) {
+ res = (status == IPU_PSYS_EVENT_CMD_COMPLETE ||
+ status == IPU_PSYS_EVENT_FRAGMENT_COMPLETE) ?
+ 0 : -EIO;
+ mutex_lock(&kppg->mutex);
+ ipu_psys_kcmd_complete(kppg, kcmd, res);
+ mutex_unlock(&kppg->mutex);
+ }
+ } while (1);
+}
+
+int ipu_psys_fh_init(struct ipu_psys_fh *fh)
+{
+ struct ipu_psys *psys = fh->psys;
+ struct ipu_psys_buffer_set *kbuf_set, *kbuf_set_tmp;
+ struct ipu_psys_scheduler *sched = &fh->sched;
+ int i;
+
+ mutex_init(&sched->bs_mutex);
+ INIT_LIST_HEAD(&sched->buf_sets);
+ INIT_LIST_HEAD(&sched->ppgs);
+ pm_runtime_dont_use_autosuspend(&psys->adev->dev);
+ /* allocate and map memory for buf_sets */
+ for (i = 0; i < IPU_PSYS_BUF_SET_POOL_SIZE; i++) {
+ kbuf_set = kzalloc(sizeof(*kbuf_set), GFP_KERNEL);
+ if (!kbuf_set)
+ goto out_free_buf_sets;
+ kbuf_set->kaddr = dma_alloc_attrs(&psys->adev->dev,
+ IPU_PSYS_BUF_SET_MAX_SIZE,
+ &kbuf_set->dma_addr,
+ GFP_KERNEL,
+ 0);
+ if (!kbuf_set->kaddr) {
+ kfree(kbuf_set);
+ goto out_free_buf_sets;
+ }
+ kbuf_set->size = IPU_PSYS_BUF_SET_MAX_SIZE;
+ list_add(&kbuf_set->list, &sched->buf_sets);
+ }
+
+ return 0;
+
+out_free_buf_sets:
+ list_for_each_entry_safe(kbuf_set, kbuf_set_tmp,
+ &sched->buf_sets, list) {
+ dma_free_attrs(&psys->adev->dev,
+ kbuf_set->size, kbuf_set->kaddr,
+ kbuf_set->dma_addr, 0);
+ list_del(&kbuf_set->list);
+ kfree(kbuf_set);
+ }
+ mutex_destroy(&sched->bs_mutex);
+
+ return -ENOMEM;
+}
+
+int ipu_psys_fh_deinit(struct ipu_psys_fh *fh)
+{
+ struct ipu_psys *psys = fh->psys;
+ struct ipu_psys_ppg *kppg, *kppg0;
+ struct ipu_psys_kcmd *kcmd, *kcmd0;
+ struct ipu_psys_buffer_set *kbuf_set, *kbuf_set0;
+ struct ipu_psys_scheduler *sched = &fh->sched;
+ struct ipu_psys_resource_pool *rpr;
+ struct ipu_psys_resource_alloc *alloc;
+ u8 id;
+
+ mutex_lock(&fh->mutex);
+ if (!list_empty(&sched->ppgs)) {
+ list_for_each_entry_safe(kppg, kppg0, &sched->ppgs, list) {
+ unsigned long flags;
+
+ mutex_lock(&kppg->mutex);
+ if (!(kppg->state &
+ (PPG_STATE_STOPPED |
+ PPG_STATE_STOPPING))) {
+ struct ipu_psys_kcmd tmp = {
+ .kpg = kppg->kpg,
+ };
+
+ rpr = &psys->resource_pool_running;
+ alloc = &kppg->kpg->resource_alloc;
+ id = ipu_fw_psys_ppg_get_base_queue_id(&tmp);
+ ipu_psys_ppg_stop(kppg);
+ ipu_psys_free_resources(alloc, rpr);
+ ipu_psys_free_cmd_queue_resource(rpr, id);
+ dev_dbg(&psys->adev->dev,
+ "s_change:%s %p %d -> %d\n", __func__,
+ kppg, kppg->state, PPG_STATE_STOPPED);
+ kppg->state = PPG_STATE_STOPPED;
+ if (psys->power_gating != PSYS_POWER_GATED)
+ pm_runtime_put(&psys->adev->dev);
+ }
+ list_del(&kppg->list);
+ mutex_unlock(&kppg->mutex);
+
+ list_for_each_entry_safe(kcmd, kcmd0,
+ &kppg->kcmds_new_list, list) {
+ kcmd->pg_user = NULL;
+ mutex_unlock(&fh->mutex);
+ ipu_psys_kcmd_free(kcmd);
+ mutex_lock(&fh->mutex);
+ }
+
+ list_for_each_entry_safe(kcmd, kcmd0,
+ &kppg->kcmds_processing_list,
+ list) {
+ kcmd->pg_user = NULL;
+ mutex_unlock(&fh->mutex);
+ ipu_psys_kcmd_free(kcmd);
+ mutex_lock(&fh->mutex);
+ }
+
+ list_for_each_entry_safe(kcmd, kcmd0,
+ &kppg->kcmds_finished_list,
+ list) {
+ kcmd->pg_user = NULL;
+ mutex_unlock(&fh->mutex);
+ ipu_psys_kcmd_free(kcmd);
+ mutex_lock(&fh->mutex);
+ }
+
+ spin_lock_irqsave(&psys->pgs_lock, flags);
+ kppg->kpg->pg_size = 0;
+ spin_unlock_irqrestore(&psys->pgs_lock, flags);
+
+ mutex_destroy(&kppg->mutex);
+ kfree(kppg->manifest);
+ kfree(kppg);
+ }
+ }
+ mutex_unlock(&fh->mutex);
+
+ mutex_lock(&sched->bs_mutex);
+ list_for_each_entry_safe(kbuf_set, kbuf_set0, &sched->buf_sets, list) {
+ dma_free_attrs(&psys->adev->dev,
+ kbuf_set->size, kbuf_set->kaddr,
+ kbuf_set->dma_addr, 0);
+ list_del(&kbuf_set->list);
+ kfree(kbuf_set);
+ }
+ mutex_unlock(&sched->bs_mutex);
+ mutex_destroy(&sched->bs_mutex);
+
+ return 0;
+}
+
+struct ipu_psys_kcmd *ipu_get_completed_kcmd(struct ipu_psys_fh *fh)
+{
+ struct ipu_psys_scheduler *sched = &fh->sched;
+ struct ipu_psys_kcmd *kcmd;
+ struct ipu_psys_ppg *kppg;
+
+ mutex_lock(&fh->mutex);
+ if (list_empty(&sched->ppgs)) {
+ mutex_unlock(&fh->mutex);
+ return NULL;
+ }
+
+ list_for_each_entry(kppg, &sched->ppgs, list) {
+ mutex_lock(&kppg->mutex);
+ if (list_empty(&kppg->kcmds_finished_list)) {
+ mutex_unlock(&kppg->mutex);
+ continue;
+ }
+
+ kcmd = list_first_entry(&kppg->kcmds_finished_list,
+ struct ipu_psys_kcmd, list);
+ mutex_unlock(&fh->mutex);
+ mutex_unlock(&kppg->mutex);
+ dev_dbg(&fh->psys->adev->dev,
+ "get completed kcmd 0x%p\n", kcmd);
+ return kcmd;
+ }
+ mutex_unlock(&fh->mutex);
+
+ return NULL;
+}
+
+long ipu_ioctl_dqevent(struct ipu_psys_event *event,
+ struct ipu_psys_fh *fh, unsigned int f_flags)
+{
+ struct ipu_psys *psys = fh->psys;
+ struct ipu_psys_kcmd *kcmd = NULL;
+ int rval;
+
+ dev_dbg(&psys->adev->dev, "IOC_DQEVENT\n");
+
+ if (!(f_flags & O_NONBLOCK)) {
+ rval = wait_event_interruptible(fh->wait,
+ (kcmd =
+ ipu_get_completed_kcmd(fh)));
+ if (rval == -ERESTARTSYS)
+ return rval;
+ }
+
+ if (!kcmd) {
+ kcmd = ipu_get_completed_kcmd(fh);
+ if (!kcmd)
+ return -ENODATA;
+ }
+
+ *event = kcmd->ev;
+ ipu_psys_kcmd_free(kcmd);
+
+ return 0;
+}
diff --git a/drivers/media/pci/intel/ipu6/ipu6.c b/drivers/media/pci/intel/ipu6/ipu6.c
new file mode 100644
index 0000000000000..ad89abd8bd2ed
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu6.c
@@ -0,0 +1,333 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2018 - 2021 Intel Corporation
+
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+
+#include "ipu.h"
+#include "ipu-cpd.h"
+#include "ipu-isys.h"
+#include "ipu-psys.h"
+#include "ipu-platform.h"
+#include "ipu-platform-regs.h"
+#include "ipu-platform-buttress-regs.h"
+#include "ipu-platform-isys-csi2-reg.h"
+
+struct ipu_cell_program_t {
+ unsigned int magic_number;
+
+ unsigned int blob_offset;
+ unsigned int blob_size;
+
+ unsigned int start[3];
+
+ unsigned int icache_source;
+ unsigned int icache_target;
+ unsigned int icache_size;
+
+ unsigned int pmem_source;
+ unsigned int pmem_target;
+ unsigned int pmem_size;
+
+ unsigned int data_source;
+ unsigned int data_target;
+ unsigned int data_size;
+
+ unsigned int bss_target;
+ unsigned int bss_size;
+
+ unsigned int cell_id;
+ unsigned int regs_addr;
+
+ unsigned int cell_pmem_data_bus_address;
+ unsigned int cell_dmem_data_bus_address;
+ unsigned int cell_pmem_control_bus_address;
+ unsigned int cell_dmem_control_bus_address;
+
+ unsigned int next;
+ unsigned int dummy[2];
+};
+
+static unsigned int ipu6se_csi_offsets[] = {
+ IPU_CSI_PORT_A_ADDR_OFFSET,
+ IPU_CSI_PORT_B_ADDR_OFFSET,
+ IPU_CSI_PORT_C_ADDR_OFFSET,
+ IPU_CSI_PORT_D_ADDR_OFFSET,
+};
+
+static unsigned int ipu6_csi_offsets[] = {
+ IPU_CSI_PORT_A_ADDR_OFFSET,
+ IPU_CSI_PORT_B_ADDR_OFFSET,
+ IPU_CSI_PORT_C_ADDR_OFFSET,
+ IPU_CSI_PORT_D_ADDR_OFFSET,
+ IPU_CSI_PORT_E_ADDR_OFFSET,
+ IPU_CSI_PORT_F_ADDR_OFFSET,
+ IPU_CSI_PORT_G_ADDR_OFFSET,
+ IPU_CSI_PORT_H_ADDR_OFFSET
+};
+
+struct ipu_isys_internal_pdata isys_ipdata = {
+ .hw_variant = {
+ .offset = IPU_UNIFIED_OFFSET,
+ .nr_mmus = 3,
+ .mmu_hw = {
+ {
+ .offset = IPU_ISYS_IOMMU0_OFFSET,
+ .info_bits =
+ IPU_INFO_REQUEST_DESTINATION_IOSF,
+ .nr_l1streams = 16,
+ .l1_block_sz = {
+ 3, 8, 2, 2, 2, 2, 2, 2, 1, 1,
+ 1, 1, 1, 1, 1, 1
+ },
+ .nr_l2streams = 16,
+ .l2_block_sz = {
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2
+ },
+ .insert_read_before_invalidate = false,
+ .l1_stream_id_reg_offset =
+ IPU_MMU_L1_STREAM_ID_REG_OFFSET,
+ .l2_stream_id_reg_offset =
+ IPU_MMU_L2_STREAM_ID_REG_OFFSET,
+ },
+ {
+ .offset = IPU_ISYS_IOMMU1_OFFSET,
+ .info_bits = IPU_INFO_STREAM_ID_SET(0),
+ .nr_l1streams = 16,
+ .l1_block_sz = {
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 1, 1, 4
+ },
+ .nr_l2streams = 16,
+ .l2_block_sz = {
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2
+ },
+ .insert_read_before_invalidate = false,
+ .l1_stream_id_reg_offset =
+ IPU_MMU_L1_STREAM_ID_REG_OFFSET,
+ .l2_stream_id_reg_offset =
+ IPU_MMU_L2_STREAM_ID_REG_OFFSET,
+ },
+ {
+ .offset = IPU_ISYS_IOMMUI_OFFSET,
+ .info_bits = IPU_INFO_STREAM_ID_SET(0),
+ .nr_l1streams = 0,
+ .nr_l2streams = 0,
+ .insert_read_before_invalidate = false,
+ },
+ },
+ .cdc_fifos = 3,
+ .cdc_fifo_threshold = {6, 8, 2},
+ .dmem_offset = IPU_ISYS_DMEM_OFFSET,
+ .spc_offset = IPU_ISYS_SPC_OFFSET,
+ },
+ .isys_dma_overshoot = IPU_ISYS_OVERALLOC_MIN,
+};
+
+struct ipu_psys_internal_pdata psys_ipdata = {
+ .hw_variant = {
+ .offset = IPU_UNIFIED_OFFSET,
+ .nr_mmus = 4,
+ .mmu_hw = {
+ {
+ .offset = IPU_PSYS_IOMMU0_OFFSET,
+ .info_bits =
+ IPU_INFO_REQUEST_DESTINATION_IOSF,
+ .nr_l1streams = 16,
+ .l1_block_sz = {
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2
+ },
+ .nr_l2streams = 16,
+ .l2_block_sz = {
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2
+ },
+ .insert_read_before_invalidate = false,
+ .l1_stream_id_reg_offset =
+ IPU_MMU_L1_STREAM_ID_REG_OFFSET,
+ .l2_stream_id_reg_offset =
+ IPU_MMU_L2_STREAM_ID_REG_OFFSET,
+ },
+ {
+ .offset = IPU_PSYS_IOMMU1_OFFSET,
+ .info_bits = IPU_INFO_STREAM_ID_SET(0),
+ .nr_l1streams = 32,
+ .l1_block_sz = {
+ 1, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 10,
+ 5, 4, 14, 6, 4, 14, 6, 4, 8,
+ 4, 2, 1, 1, 1, 1, 14
+ },
+ .nr_l2streams = 32,
+ .l2_block_sz = {
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2
+ },
+ .insert_read_before_invalidate = false,
+ .l1_stream_id_reg_offset =
+ IPU_MMU_L1_STREAM_ID_REG_OFFSET,
+ .l2_stream_id_reg_offset =
+ IPU_PSYS_MMU1W_L2_STREAM_ID_REG_OFFSET,
+ },
+ {
+ .offset = IPU_PSYS_IOMMU1R_OFFSET,
+ .info_bits = IPU_INFO_STREAM_ID_SET(0),
+ .nr_l1streams = 16,
+ .l1_block_sz = {
+ 1, 4, 4, 4, 4, 16, 8, 4, 32,
+ 16, 16, 2, 2, 2, 1, 12
+ },
+ .nr_l2streams = 16,
+ .l2_block_sz = {
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2
+ },
+ .insert_read_before_invalidate = false,
+ .l1_stream_id_reg_offset =
+ IPU_MMU_L1_STREAM_ID_REG_OFFSET,
+ .l2_stream_id_reg_offset =
+ IPU_MMU_L2_STREAM_ID_REG_OFFSET,
+ },
+ {
+ .offset = IPU_PSYS_IOMMUI_OFFSET,
+ .info_bits = IPU_INFO_STREAM_ID_SET(0),
+ .nr_l1streams = 0,
+ .nr_l2streams = 0,
+ .insert_read_before_invalidate = false,
+ },
+ },
+ .dmem_offset = IPU_PSYS_DMEM_OFFSET,
+ },
+};
+
+const struct ipu_buttress_ctrl isys_buttress_ctrl = {
+ .ratio = IPU_IS_FREQ_CTL_DEFAULT_RATIO,
+ .qos_floor = IPU_IS_FREQ_CTL_DEFAULT_QOS_FLOOR_RATIO,
+ .freq_ctl = IPU_BUTTRESS_REG_IS_FREQ_CTL,
+ .pwr_sts_shift = IPU_BUTTRESS_PWR_STATE_IS_PWR_SHIFT,
+ .pwr_sts_mask = IPU_BUTTRESS_PWR_STATE_IS_PWR_MASK,
+ .pwr_sts_on = IPU_BUTTRESS_PWR_STATE_UP_DONE,
+ .pwr_sts_off = IPU_BUTTRESS_PWR_STATE_DN_DONE,
+};
+
+const struct ipu_buttress_ctrl psys_buttress_ctrl = {
+ .ratio = IPU_PS_FREQ_CTL_DEFAULT_RATIO,
+ .qos_floor = IPU_PS_FREQ_CTL_DEFAULT_QOS_FLOOR_RATIO,
+ .freq_ctl = IPU_BUTTRESS_REG_PS_FREQ_CTL,
+ .pwr_sts_shift = IPU_BUTTRESS_PWR_STATE_PS_PWR_SHIFT,
+ .pwr_sts_mask = IPU_BUTTRESS_PWR_STATE_PS_PWR_MASK,
+ .pwr_sts_on = IPU_BUTTRESS_PWR_STATE_UP_DONE,
+ .pwr_sts_off = IPU_BUTTRESS_PWR_STATE_DN_DONE,
+};
+
+static void ipu6_pkg_dir_configure_spc(struct ipu_device *isp,
+ const struct ipu_hw_variants *hw_variant,
+ int pkg_dir_idx, void __iomem *base,
+ u64 *pkg_dir,
+ dma_addr_t pkg_dir_vied_address)
+{
+ struct ipu_psys *psys = ipu_bus_get_drvdata(isp->psys);
+ struct ipu_isys *isys = ipu_bus_get_drvdata(isp->isys);
+ unsigned int server_fw_virtaddr;
+ struct ipu_cell_program_t *prog;
+ void __iomem *spc_base;
+ dma_addr_t dma_addr;
+
+ if (!pkg_dir || !isp->cpd_fw) {
+ dev_err(&isp->pdev->dev, "invalid addr\n");
+ return;
+ }
+
+ server_fw_virtaddr = *(pkg_dir + (pkg_dir_idx + 1) * 2);
+ if (pkg_dir_idx == IPU_CPD_PKG_DIR_ISYS_SERVER_IDX) {
+ dma_addr = sg_dma_address(isys->fw_sgt.sgl);
+ prog = (struct ipu_cell_program_t *)((u64)isp->cpd_fw->data +
+ (server_fw_virtaddr -
+ dma_addr));
+ } else {
+ dma_addr = sg_dma_address(psys->fw_sgt.sgl);
+ prog = (struct ipu_cell_program_t *)((u64)isp->cpd_fw->data +
+ (server_fw_virtaddr -
+ dma_addr));
+ }
+
+ spc_base = base + prog->regs_addr;
+ if (spc_base != (base + hw_variant->spc_offset))
+ dev_warn(&isp->pdev->dev,
+ "SPC reg addr 0x%p not matching value from CPD 0x%p\n",
+ base + hw_variant->spc_offset, spc_base);
+ writel(server_fw_virtaddr + prog->blob_offset +
+ prog->icache_source, spc_base + IPU_PSYS_REG_SPC_ICACHE_BASE);
+ writel(IPU_INFO_REQUEST_DESTINATION_IOSF,
+ spc_base + IPU_REG_PSYS_INFO_SEG_0_CONFIG_ICACHE_MASTER);
+ writel(prog->start[1], spc_base + IPU_PSYS_REG_SPC_START_PC);
+ writel(pkg_dir_vied_address, base + hw_variant->dmem_offset);
+}
+
+void ipu_configure_spc(struct ipu_device *isp,
+ const struct ipu_hw_variants *hw_variant,
+ int pkg_dir_idx, void __iomem *base, u64 *pkg_dir,
+ dma_addr_t pkg_dir_dma_addr)
+{
+ u32 val;
+ void __iomem *dmem_base = base + hw_variant->dmem_offset;
+ void __iomem *spc_regs_base = base + hw_variant->spc_offset;
+
+ val = readl(spc_regs_base + IPU_PSYS_REG_SPC_STATUS_CTRL);
+ val |= IPU_PSYS_SPC_STATUS_CTRL_ICACHE_INVALIDATE;
+ writel(val, spc_regs_base + IPU_PSYS_REG_SPC_STATUS_CTRL);
+
+ if (isp->secure_mode)
+ writel(IPU_PKG_DIR_IMR_OFFSET, dmem_base);
+ else
+ ipu6_pkg_dir_configure_spc(isp, hw_variant, pkg_dir_idx, base,
+ pkg_dir, pkg_dir_dma_addr);
+}
+EXPORT_SYMBOL(ipu_configure_spc);
+
+int ipu_buttress_psys_freq_get(void *data, u64 *val)
+{
+ struct ipu_device *isp = data;
+ u32 reg_val;
+ int rval;
+
+ rval = pm_runtime_get_sync(&isp->psys->dev);
+ if (rval < 0) {
+ pm_runtime_put(&isp->psys->dev);
+ dev_err(&isp->pdev->dev, "Runtime PM failed (%d)\n", rval);
+ return rval;
+ }
+
+ reg_val = readl(isp->base + BUTTRESS_REG_PS_FREQ_CTL);
+
+ pm_runtime_put(&isp->psys->dev);
+
+ *val = IPU_PS_FREQ_RATIO_BASE *
+ (reg_val & IPU_BUTTRESS_PS_FREQ_CTL_DIVISOR_MASK);
+
+ return 0;
+}
+
+void ipu_internal_pdata_init(void)
+{
+ if (ipu_ver == IPU_VER_6 || ipu_ver == IPU_VER_6EP) {
+ isys_ipdata.csi2.nports = ARRAY_SIZE(ipu6_csi_offsets);
+ isys_ipdata.csi2.offsets = ipu6_csi_offsets;
+ isys_ipdata.num_parallel_streams = IPU6_ISYS_NUM_STREAMS;
+ psys_ipdata.hw_variant.spc_offset = IPU6_PSYS_SPC_OFFSET;
+
+ } else if (ipu_ver == IPU_VER_6SE) {
+ isys_ipdata.csi2.nports = ARRAY_SIZE(ipu6se_csi_offsets);
+ isys_ipdata.csi2.offsets = ipu6se_csi_offsets;
+ isys_ipdata.num_parallel_streams = IPU6SE_ISYS_NUM_STREAMS;
+ psys_ipdata.hw_variant.spc_offset = IPU6SE_PSYS_SPC_OFFSET;
+ }
+}
diff --git a/drivers/media/pci/intel/ipu6/ipu6ep-fw-resources.c b/drivers/media/pci/intel/ipu6/ipu6ep-fw-resources.c
new file mode 100644
index 0000000000000..7b1ee7c6dc4ef
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu6ep-fw-resources.c
@@ -0,0 +1,393 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 Intel Corporation
+
+#include <linux/err.h>
+#include <linux/string.h>
+
+#include "ipu-psys.h"
+#include "ipu-fw-psys.h"
+#include "ipu6-platform-resources.h"
+#include "ipu6ep-platform-resources.h"
+
+/* resources table */
+
+/*
+ * Cell types by cell IDs
+ */
+static const u8 ipu6ep_fw_psys_cell_types[IPU6EP_FW_PSYS_N_CELL_ID] = {
+ IPU6_FW_PSYS_SP_CTRL_TYPE_ID,
+ IPU6_FW_PSYS_VP_TYPE_ID,
+ IPU6_FW_PSYS_ACC_PSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_PSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_PSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_PSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_OSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_OSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_OSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_PSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_PSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_PSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_PSA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID, /* AF */
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID, /* X2B_MD */
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID, /* X2B_SVE_RGBIR */
+ IPU6_FW_PSYS_ACC_ISA_TYPE_ID, /* PAF */
+ IPU6_FW_PSYS_GDC_TYPE_ID,
+ IPU6_FW_PSYS_TNR_TYPE_ID,
+};
+
+static const u16 ipu6ep_fw_num_dev_channels[IPU6_FW_PSYS_N_DEV_CHN_ID] = {
+ IPU6_FW_PSYS_DEV_CHN_DMA_EXT0_MAX_SIZE,
+ IPU6_FW_PSYS_DEV_CHN_DMA_EXT1_READ_MAX_SIZE,
+ IPU6_FW_PSYS_DEV_CHN_DMA_EXT1_WRITE_MAX_SIZE,
+ IPU6_FW_PSYS_DEV_CHN_DMA_INTERNAL_MAX_SIZE,
+ IPU6_FW_PSYS_DEV_CHN_DMA_ISA_MAX_SIZE,
+};
+
+static const u16 ipu6ep_fw_psys_mem_size[IPU6_FW_PSYS_N_MEM_ID] = {
+ IPU6_FW_PSYS_VMEM0_MAX_SIZE,
+ IPU6_FW_PSYS_TRANSFER_VMEM0_MAX_SIZE,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_MAX_SIZE,
+ IPU6_FW_PSYS_LB_VMEM_MAX_SIZE,
+ IPU6_FW_PSYS_BAMEM0_MAX_SIZE,
+ IPU6_FW_PSYS_DMEM0_MAX_SIZE,
+ IPU6_FW_PSYS_DMEM1_MAX_SIZE,
+ IPU6_FW_PSYS_DMEM2_MAX_SIZE,
+ IPU6_FW_PSYS_DMEM3_MAX_SIZE,
+ IPU6_FW_PSYS_PMEM0_MAX_SIZE
+};
+
+static const u16 ipu6ep_fw_psys_dfms[IPU6_FW_PSYS_N_DEV_DFM_ID] = {
+ IPU6_FW_PSYS_DEV_DFM_BB_FULL_PORT_ID_MAX_SIZE,
+ IPU6_FW_PSYS_DEV_DFM_BB_EMPTY_PORT_ID_MAX_SIZE,
+ IPU6_FW_PSYS_DEV_DFM_ISL_FULL_PORT_ID_MAX_SIZE,
+ IPU6_FW_PSYS_DEV_DFM_ISL_EMPTY_PORT_ID_MAX_SIZE,
+ IPU6_FW_PSYS_DEV_DFM_LB_FULL_PORT_ID_MAX_SIZE,
+ IPU6_FW_PSYS_DEV_DFM_LB_EMPTY_PORT_ID_MAX_SIZE,
+};
+
+static const u8
+ipu6ep_fw_psys_c_mem[IPU6EP_FW_PSYS_N_CELL_ID][IPU6_FW_PSYS_N_MEM_TYPE_ID] = {
+ {
+ /* IPU6_FW_PSYS_SP0_ID */
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_DMEM0_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_SP1_ID */
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_DMEM1_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_VP0_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_DMEM3_ID,
+ IPU6_FW_PSYS_VMEM0_ID,
+ IPU6_FW_PSYS_BAMEM0_ID,
+ IPU6_FW_PSYS_PMEM0_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC1_ID BNLM */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC2_ID DM */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC3_ID ACM */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC4_ID GTC YUV1 */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC5_ID OFS pin main */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC6_ID OFS pin display */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC7_ID OFS pin pp */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC8_ID GAMMASTAR */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC9_ID GLTM */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ACC10_ID XNR */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_ICA_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_LSC_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_DPC_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_SIS_A_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_SIS_B_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_B2B_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_B2R_ID and ISA_R2I_SIE */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_R2I_DS_A_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_AWB_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_AE_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_AF_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_X2B_MD_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_X2B_SVE_RGBIR_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_ISA_PAF_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_LB_VMEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_BB_ACC_GDC0_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ },
+ {
+ /* IPU6_FW_PSYS_BB_ACC_TNR_ID */
+ IPU6_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6_FW_PSYS_TRANSFER_VMEM1_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ IPU6_FW_PSYS_N_MEM_ID,
+ }
+};
+
+static const struct ipu_fw_resource_definitions ipu6ep_defs = {
+ .cells = ipu6ep_fw_psys_cell_types,
+ .num_cells = IPU6EP_FW_PSYS_N_CELL_ID,
+ .num_cells_type = IPU6_FW_PSYS_N_CELL_TYPE_ID,
+
+ .dev_channels = ipu6ep_fw_num_dev_channels,
+ .num_dev_channels = IPU6_FW_PSYS_N_DEV_CHN_ID,
+
+ .num_ext_mem_types = IPU6_FW_PSYS_N_DATA_MEM_TYPE_ID,
+ .num_ext_mem_ids = IPU6_FW_PSYS_N_MEM_ID,
+ .ext_mem_ids = ipu6ep_fw_psys_mem_size,
+
+ .num_dfm_ids = IPU6_FW_PSYS_N_DEV_DFM_ID,
+
+ .dfms = ipu6ep_fw_psys_dfms,
+
+ .cell_mem_row = IPU6_FW_PSYS_N_MEM_TYPE_ID,
+ .cell_mem = &ipu6ep_fw_psys_c_mem[0][0],
+};
+
+const struct ipu_fw_resource_definitions *ipu6ep_res_defs = &ipu6ep_defs;
diff --git a/drivers/media/pci/intel/ipu6/ipu6ep-platform-resources.h b/drivers/media/pci/intel/ipu6/ipu6ep-platform-resources.h
new file mode 100644
index 0000000000000..7776ea9869406
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu6ep-platform-resources.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2020 Intel Corporation */
+
+#ifndef IPU6EP_PLATFORM_RESOURCES_H
+#define IPU6EP_PLATFORM_RESOURCES_H
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+
+enum {
+ IPU6EP_FW_PSYS_SP0_ID = 0,
+ IPU6EP_FW_PSYS_VP0_ID,
+ IPU6EP_FW_PSYS_PSA_ACC_BNLM_ID,
+ IPU6EP_FW_PSYS_PSA_ACC_DM_ID,
+ IPU6EP_FW_PSYS_PSA_ACC_ACM_ID,
+ IPU6EP_FW_PSYS_PSA_ACC_GTC_YUV1_ID,
+ IPU6EP_FW_PSYS_BB_ACC_OFS_PIN_MAIN_ID,
+ IPU6EP_FW_PSYS_BB_ACC_OFS_PIN_DISPLAY_ID,
+ IPU6EP_FW_PSYS_BB_ACC_OFS_PIN_PP_ID,
+ IPU6EP_FW_PSYS_PSA_ACC_GAMMASTAR_ID,
+ IPU6EP_FW_PSYS_PSA_ACC_GLTM_ID,
+ IPU6EP_FW_PSYS_PSA_ACC_XNR_ID,
+ IPU6EP_FW_PSYS_PSA_VCSC_ID, /* VCSC */
+ IPU6EP_FW_PSYS_ISA_ICA_ID,
+ IPU6EP_FW_PSYS_ISA_LSC_ID,
+ IPU6EP_FW_PSYS_ISA_DPC_ID,
+ IPU6EP_FW_PSYS_ISA_SIS_A_ID,
+ IPU6EP_FW_PSYS_ISA_SIS_B_ID,
+ IPU6EP_FW_PSYS_ISA_B2B_ID,
+ IPU6EP_FW_PSYS_ISA_B2R_R2I_SIE_ID,
+ IPU6EP_FW_PSYS_ISA_R2I_DS_A_ID,
+ IPU6EP_FW_PSYS_ISA_AWB_ID,
+ IPU6EP_FW_PSYS_ISA_AE_ID,
+ IPU6EP_FW_PSYS_ISA_AF_ID,
+ IPU6EP_FW_PSYS_ISA_X2B_MD_ID,
+ IPU6EP_FW_PSYS_ISA_X2B_SVE_RGBIR_ID,
+ IPU6EP_FW_PSYS_ISA_PAF_ID,
+ IPU6EP_FW_PSYS_BB_ACC_GDC0_ID,
+ IPU6EP_FW_PSYS_BB_ACC_TNR_ID,
+ IPU6EP_FW_PSYS_N_CELL_ID
+};
+#endif /* IPU6EP_PLATFORM_RESOURCES_H */
diff --git a/drivers/media/pci/intel/ipu6/ipu6se-fw-resources.c b/drivers/media/pci/intel/ipu6/ipu6se-fw-resources.c
new file mode 100644
index 0000000000000..f94df275b37c1
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu6se-fw-resources.c
@@ -0,0 +1,194 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2015 - 2019 Intel Corporation
+
+#include <linux/err.h>
+#include <linux/string.h>
+
+#include "ipu-psys.h"
+#include "ipu-fw-psys.h"
+#include "ipu6se-platform-resources.h"
+
+/* resources table */
+
+/*
+ * Cell types by cell IDs
+ */
+/* resources table */
+
+/*
+ * Cell types by cell IDs
+ */
+const u8 ipu6se_fw_psys_cell_types[IPU6SE_FW_PSYS_N_CELL_ID] = {
+ IPU6SE_FW_PSYS_SP_CTRL_TYPE_ID,
+ IPU6SE_FW_PSYS_ACC_ISA_TYPE_ID, /* IPU6SE_FW_PSYS_ISA_ICA_ID */
+ IPU6SE_FW_PSYS_ACC_ISA_TYPE_ID, /* IPU6SE_FW_PSYS_ISA_LSC_ID */
+ IPU6SE_FW_PSYS_ACC_ISA_TYPE_ID, /* IPU6SE_FW_PSYS_ISA_DPC_ID */
+ IPU6SE_FW_PSYS_ACC_ISA_TYPE_ID, /* IPU6SE_FW_PSYS_ISA_B2B_ID */
+ IPU6SE_FW_PSYS_ACC_ISA_TYPE_ID, /* IPU6SE_FW_PSYS_ISA_BNLM_ID */
+ IPU6SE_FW_PSYS_ACC_ISA_TYPE_ID, /* IPU6SE_FW_PSYS_ISA_DM_ID */
+ IPU6SE_FW_PSYS_ACC_ISA_TYPE_ID, /* IPU6SE_FW_PSYS_ISA_R2I_SIE_ID */
+ IPU6SE_FW_PSYS_ACC_ISA_TYPE_ID, /* IPU6SE_FW_PSYS_ISA_R2I_DS_A_ID */
+ IPU6SE_FW_PSYS_ACC_ISA_TYPE_ID, /* IPU6SE_FW_PSYS_ISA_R2I_DS_B_ID */
+ IPU6SE_FW_PSYS_ACC_ISA_TYPE_ID, /* IPU6SE_FW_PSYS_ISA_AWB_ID */
+ IPU6SE_FW_PSYS_ACC_ISA_TYPE_ID, /* IPU6SE_FW_PSYS_ISA_AE_ID */
+ IPU6SE_FW_PSYS_ACC_ISA_TYPE_ID, /* IPU6SE_FW_PSYS_ISA_AF_ID*/
+ IPU6SE_FW_PSYS_ACC_ISA_TYPE_ID /* PAF */
+};
+
+const u16 ipu6se_fw_num_dev_channels[IPU6SE_FW_PSYS_N_DEV_CHN_ID] = {
+ IPU6SE_FW_PSYS_DEV_CHN_DMA_EXT0_MAX_SIZE,
+ IPU6SE_FW_PSYS_DEV_CHN_DMA_EXT1_READ_MAX_SIZE,
+ IPU6SE_FW_PSYS_DEV_CHN_DMA_EXT1_WRITE_MAX_SIZE,
+ IPU6SE_FW_PSYS_DEV_CHN_DMA_ISA_MAX_SIZE,
+};
+
+const u16 ipu6se_fw_psys_mem_size[IPU6SE_FW_PSYS_N_MEM_ID] = {
+ IPU6SE_FW_PSYS_TRANSFER_VMEM0_MAX_SIZE,
+ IPU6SE_FW_PSYS_LB_VMEM_MAX_SIZE,
+ IPU6SE_FW_PSYS_DMEM0_MAX_SIZE,
+ IPU6SE_FW_PSYS_DMEM1_MAX_SIZE
+};
+
+const u16 ipu6se_fw_psys_dfms[IPU6SE_FW_PSYS_N_DEV_DFM_ID] = {
+ IPU6SE_FW_PSYS_DEV_DFM_ISL_FULL_PORT_ID_MAX_SIZE,
+ IPU6SE_FW_PSYS_DEV_DFM_ISL_EMPTY_PORT_ID_MAX_SIZE
+};
+
+const u8
+ipu6se_fw_psys_c_mem[IPU6SE_FW_PSYS_N_CELL_ID][IPU6SE_FW_PSYS_N_MEM_TYPE_ID] = {
+ { /* IPU6SE_FW_PSYS_SP0_ID */
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_DMEM0_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ },
+ { /* IPU6SE_FW_PSYS_ISA_ICA_ID */
+ IPU6SE_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6SE_FW_PSYS_LB_VMEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ },
+ { /* IPU6SE_FW_PSYS_ISA_LSC_ID */
+ IPU6SE_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6SE_FW_PSYS_LB_VMEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ },
+ { /* IPU6SE_FW_PSYS_ISA_DPC_ID */
+ IPU6SE_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6SE_FW_PSYS_LB_VMEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ },
+ { /* IPU6SE_FW_PSYS_ISA_B2B_ID */
+ IPU6SE_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6SE_FW_PSYS_LB_VMEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ },
+
+ { /* IPU6SE_FW_PSYS_ISA_BNLM_ID */
+ IPU6SE_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6SE_FW_PSYS_LB_VMEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ },
+ { /* IPU6SE_FW_PSYS_ISA_DM_ID */
+ IPU6SE_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6SE_FW_PSYS_LB_VMEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ },
+ { /* IPU6SE_FW_PSYS_ISA_R2I_SIE_ID */
+ IPU6SE_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6SE_FW_PSYS_LB_VMEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ },
+ { /* IPU6SE_FW_PSYS_ISA_R2I_DS_A_ID */
+ IPU6SE_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6SE_FW_PSYS_LB_VMEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ },
+ { /* IPU6SE_FW_PSYS_ISA_R2I_DS_B_ID */
+ IPU6SE_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6SE_FW_PSYS_LB_VMEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ },
+ { /* IPU6SE_FW_PSYS_ISA_AWB_ID */
+ IPU6SE_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6SE_FW_PSYS_LB_VMEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ },
+ { /* IPU6SE_FW_PSYS_ISA_AE_ID */
+ IPU6SE_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6SE_FW_PSYS_LB_VMEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ },
+ { /* IPU6SE_FW_PSYS_ISA_AF_ID */
+ IPU6SE_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6SE_FW_PSYS_LB_VMEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ },
+ { /* IPU6SE_FW_PSYS_ISA_PAF_ID */
+ IPU6SE_FW_PSYS_TRANSFER_VMEM0_ID,
+ IPU6SE_FW_PSYS_LB_VMEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ IPU6SE_FW_PSYS_N_MEM_ID,
+ }
+};
+
+static const struct ipu_fw_resource_definitions ipu6se_defs = {
+ .cells = ipu6se_fw_psys_cell_types,
+ .num_cells = IPU6SE_FW_PSYS_N_CELL_ID,
+ .num_cells_type = IPU6SE_FW_PSYS_N_CELL_TYPE_ID,
+
+ .dev_channels = ipu6se_fw_num_dev_channels,
+ .num_dev_channels = IPU6SE_FW_PSYS_N_DEV_CHN_ID,
+
+ .num_ext_mem_types = IPU6SE_FW_PSYS_N_DATA_MEM_TYPE_ID,
+ .num_ext_mem_ids = IPU6SE_FW_PSYS_N_MEM_ID,
+ .ext_mem_ids = ipu6se_fw_psys_mem_size,
+
+ .num_dfm_ids = IPU6SE_FW_PSYS_N_DEV_DFM_ID,
+
+ .dfms = ipu6se_fw_psys_dfms,
+
+ .cell_mem_row = IPU6SE_FW_PSYS_N_MEM_TYPE_ID,
+ .cell_mem = &ipu6se_fw_psys_c_mem[0][0],
+};
+
+const struct ipu_fw_resource_definitions *ipu6se_res_defs = &ipu6se_defs;
diff --git a/drivers/media/pci/intel/ipu6/ipu6se-platform-resources.h b/drivers/media/pci/intel/ipu6/ipu6se-platform-resources.h
new file mode 100644
index 0000000000000..fcb52da3d65bf
--- /dev/null
+++ b/drivers/media/pci/intel/ipu6/ipu6se-platform-resources.h
@@ -0,0 +1,103 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2018 - 2020 Intel Corporation */
+
+#ifndef IPU6SE_PLATFORM_RESOURCES_H
+#define IPU6SE_PLATFORM_RESOURCES_H
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include "ipu-platform-resources.h"
+
+#define IPU6SE_FW_PSYS_N_PADDING_UINT8_IN_PROCESS_EXT_STRUCT 1
+
+enum {
+ IPU6SE_FW_PSYS_CMD_QUEUE_COMMAND_ID = 0,
+ IPU6SE_FW_PSYS_CMD_QUEUE_DEVICE_ID,
+ IPU6SE_FW_PSYS_CMD_QUEUE_PPG0_COMMAND_ID,
+ IPU6SE_FW_PSYS_CMD_QUEUE_PPG1_COMMAND_ID,
+ IPU6SE_FW_PSYS_CMD_QUEUE_PPG2_COMMAND_ID,
+ IPU6SE_FW_PSYS_CMD_QUEUE_PPG3_COMMAND_ID,
+ IPU6SE_FW_PSYS_CMD_QUEUE_PPG4_COMMAND_ID,
+ IPU6SE_FW_PSYS_CMD_QUEUE_PPG5_COMMAND_ID,
+ IPU6SE_FW_PSYS_N_PSYS_CMD_QUEUE_ID
+};
+
+enum {
+ IPU6SE_FW_PSYS_TRANSFER_VMEM0_TYPE_ID = 0,
+ IPU6SE_FW_PSYS_LB_VMEM_TYPE_ID,
+ IPU6SE_FW_PSYS_DMEM_TYPE_ID,
+ IPU6SE_FW_PSYS_VMEM_TYPE_ID,
+ IPU6SE_FW_PSYS_BAMEM_TYPE_ID,
+ IPU6SE_FW_PSYS_PMEM_TYPE_ID,
+ IPU6SE_FW_PSYS_N_MEM_TYPE_ID
+};
+
+enum ipu6se_mem_id {
+ IPU6SE_FW_PSYS_TRANSFER_VMEM0_ID = 0, /* TRANSFER VMEM 0 */
+ IPU6SE_FW_PSYS_LB_VMEM_ID, /* LB VMEM */
+ IPU6SE_FW_PSYS_DMEM0_ID, /* SPC0 Dmem */
+ IPU6SE_FW_PSYS_DMEM1_ID, /* SPP0 Dmem */
+ IPU6SE_FW_PSYS_N_MEM_ID
+};
+
+enum {
+ IPU6SE_FW_PSYS_DEV_CHN_DMA_EXT0_ID = 0,
+ IPU6SE_FW_PSYS_DEV_CHN_DMA_EXT1_READ_ID,
+ IPU6SE_FW_PSYS_DEV_CHN_DMA_EXT1_WRITE_ID,
+ IPU6SE_FW_PSYS_DEV_CHN_DMA_ISA_ID,
+ IPU6SE_FW_PSYS_N_DEV_CHN_ID
+};
+
+enum {
+ IPU6SE_FW_PSYS_SP_CTRL_TYPE_ID = 0,
+ IPU6SE_FW_PSYS_SP_SERVER_TYPE_ID,
+ IPU6SE_FW_PSYS_ACC_ISA_TYPE_ID,
+ IPU6SE_FW_PSYS_N_CELL_TYPE_ID
+};
+
+enum {
+ IPU6SE_FW_PSYS_SP0_ID = 0,
+ IPU6SE_FW_PSYS_ISA_ICA_ID,
+ IPU6SE_FW_PSYS_ISA_LSC_ID,
+ IPU6SE_FW_PSYS_ISA_DPC_ID,
+ IPU6SE_FW_PSYS_ISA_B2B_ID,
+ IPU6SE_FW_PSYS_ISA_BNLM_ID,
+ IPU6SE_FW_PSYS_ISA_DM_ID,
+ IPU6SE_FW_PSYS_ISA_R2I_SIE_ID,
+ IPU6SE_FW_PSYS_ISA_R2I_DS_A_ID,
+ IPU6SE_FW_PSYS_ISA_R2I_DS_B_ID,
+ IPU6SE_FW_PSYS_ISA_AWB_ID,
+ IPU6SE_FW_PSYS_ISA_AE_ID,
+ IPU6SE_FW_PSYS_ISA_AF_ID,
+ IPU6SE_FW_PSYS_ISA_PAF_ID,
+ IPU6SE_FW_PSYS_N_CELL_ID
+};
+
+enum {
+ IPU6SE_FW_PSYS_DEV_DFM_ISL_FULL_PORT_ID = 0,
+ IPU6SE_FW_PSYS_DEV_DFM_ISL_EMPTY_PORT_ID,
+};
+
+/* Excluding PMEM */
+#define IPU6SE_FW_PSYS_N_DATA_MEM_TYPE_ID (IPU6SE_FW_PSYS_N_MEM_TYPE_ID - 1)
+#define IPU6SE_FW_PSYS_N_DEV_DFM_ID \
+ (IPU6SE_FW_PSYS_DEV_DFM_ISL_EMPTY_PORT_ID + 1)
+#define IPU6SE_FW_PSYS_VMEM0_MAX_SIZE 0x0800
+/* Transfer VMEM0 words, ref HAS Transfer*/
+#define IPU6SE_FW_PSYS_TRANSFER_VMEM0_MAX_SIZE 0x0800
+#define IPU6SE_FW_PSYS_LB_VMEM_MAX_SIZE 0x0400 /* LB VMEM words */
+#define IPU6SE_FW_PSYS_DMEM0_MAX_SIZE 0x4000
+#define IPU6SE_FW_PSYS_DMEM1_MAX_SIZE 0x1000
+
+#define IPU6SE_FW_PSYS_DEV_CHN_DMA_EXT0_MAX_SIZE 22
+#define IPU6SE_FW_PSYS_DEV_CHN_DMA_EXT1_READ_MAX_SIZE 22
+#define IPU6SE_FW_PSYS_DEV_CHN_DMA_EXT1_WRITE_MAX_SIZE 22
+#define IPU6SE_FW_PSYS_DEV_CHN_DMA_IPFD_MAX_SIZE 0
+#define IPU6SE_FW_PSYS_DEV_CHN_DMA_ISA_MAX_SIZE 2
+
+#define IPU6SE_FW_PSYS_DEV_DFM_ISL_FULL_PORT_ID_MAX_SIZE 32
+#define IPU6SE_FW_PSYS_DEV_DFM_LB_FULL_PORT_ID_MAX_SIZE 32
+#define IPU6SE_FW_PSYS_DEV_DFM_ISL_EMPTY_PORT_ID_MAX_SIZE 32
+#define IPU6SE_FW_PSYS_DEV_DFM_LB_EMPTY_PORT_ID_MAX_SIZE 32
+
+#endif /* IPU6SE_PLATFORM_RESOURCES_H */
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 4d408c819686d..484b14da43e0b 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -2240,5 +2240,15 @@ config MFD_RSMU_SPI
Additional drivers must be enabled in order to use the functionality
of the device.
+config MFD_LJCA
+ tristate "Intel La Jolla Cove Adapter support"
+ select MFD_CORE
+ depends on USB
+ help
+ This adds support for Intel La Jolla Cove USB-I2C/SPI/GPIO
+ Adapter (LJCA). Additional drivers such as I2C_LJCA,
+ GPIO_LJCA, etc. must be enabled in order to use the
+ functionality of the device.
+
endmenu
endif
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index da51bb7a85a1b..bc71be68b2808 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -279,3 +279,5 @@ rsmu-i2c-objs := rsmu_core.o rsmu_i2c.o
rsmu-spi-objs := rsmu_core.o rsmu_spi.o
obj-$(CONFIG_MFD_RSMU_I2C) += rsmu-i2c.o
obj-$(CONFIG_MFD_RSMU_SPI) += rsmu-spi.o
+
+obj-$(CONFIG_MFD_LJCA) += ljca.o
diff --git a/drivers/mfd/ljca.c b/drivers/mfd/ljca.c
new file mode 100644
index 0000000000000..621fc048c9113
--- /dev/null
+++ b/drivers/mfd/ljca.c
@@ -0,0 +1,1191 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Intel La Jolla Cove Adapter USB driver
+ *
+ * Copyright (c) 2021, Intel Corporation.
+ */
+
+#include <linux/acpi.h>
+#include <linux/kernel.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/ljca.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/uaccess.h>
+#include <linux/usb.h>
+
+enum ljca_acpi_match_adr {
+ LJCA_ACPI_MATCH_GPIO,
+ LJCA_ACPI_MATCH_I2C1,
+ LJCA_ACPI_MATCH_I2C2,
+ LJCA_ACPI_MATCH_SPI1,
+};
+
+static char *gpio_hids[] = {
+ "INTC1074",
+ "INTC1096",
+};
+static struct mfd_cell_acpi_match ljca_acpi_match_gpio;
+
+static char *i2c_hids[] = {
+ "INTC1075",
+ "INTC1097",
+};
+static struct mfd_cell_acpi_match ljca_acpi_match_i2cs[2];
+
+static char *spi_hids[] = {
+ "INTC1091",
+ "INTC1098",
+};
+static struct mfd_cell_acpi_match ljca_acpi_match_spis[1];
+
+struct ljca_msg {
+ u8 type;
+ u8 cmd;
+ u8 flags;
+ u8 len;
+ u8 data[];
+} __packed;
+
+struct fw_version {
+ u8 major;
+ u8 minor;
+ u16 patch;
+ u16 build;
+} __packed;
+
+/* stub types */
+enum stub_type {
+ MNG_STUB = 1,
+ DIAG_STUB,
+ GPIO_STUB,
+ I2C_STUB,
+ SPI_STUB,
+};
+
+/* command Flags */
+#define ACK_FLAG BIT(0)
+#define RESP_FLAG BIT(1)
+#define CMPL_FLAG BIT(2)
+
+/* MNG stub commands */
+enum ljca_mng_cmd {
+ MNG_GET_VERSION = 1,
+ MNG_RESET_NOTIFY,
+ MNG_RESET,
+ MNG_ENUM_GPIO,
+ MNG_ENUM_I2C,
+ MNG_POWER_STATE_CHANGE,
+ MNG_SET_DFU_MODE,
+ MNG_ENUM_SPI,
+};
+
+/* DIAG commands */
+enum diag_cmd {
+ DIAG_GET_STATE = 1,
+ DIAG_GET_STATISTIC,
+ DIAG_SET_TRACE_LEVEL,
+ DIAG_SET_ECHO_MODE,
+ DIAG_GET_FW_LOG,
+ DIAG_GET_FW_COREDUMP,
+ DIAG_TRIGGER_WDT,
+ DIAG_TRIGGER_FAULT,
+ DIAG_FEED_WDT,
+ DIAG_GET_SECURE_STATE,
+};
+
+struct ljca_i2c_ctr_info {
+ u8 id;
+ u8 capacity;
+ u8 intr_pin;
+} __packed;
+
+struct ljca_i2c_descriptor {
+ u8 num;
+ struct ljca_i2c_ctr_info info[];
+} __packed;
+
+struct ljca_spi_ctr_info {
+ u8 id;
+ u8 capacity;
+} __packed;
+
+struct ljca_spi_descriptor {
+ u8 num;
+ struct ljca_spi_ctr_info info[];
+} __packed;
+
+struct ljca_bank_descriptor {
+ u8 bank_id;
+ u8 pin_num;
+
+ /* 1 bit for each gpio, 1 means valid */
+ u32 valid_pins;
+} __packed;
+
+struct ljca_gpio_descriptor {
+ u8 pins_per_bank;
+ u8 bank_num;
+ struct ljca_bank_descriptor bank_desc[];
+} __packed;
+
+#define MAX_PACKET_SIZE 64
+#define MAX_PAYLOAD_SIZE (MAX_PACKET_SIZE - sizeof(struct ljca_msg))
+#define USB_WRITE_TIMEOUT 200
+#define USB_WRITE_ACK_TIMEOUT 500
+
+struct ljca_event_cb_entry {
+ struct platform_device *pdev;
+ ljca_event_cb_t notify;
+};
+
+struct ljca_stub_packet {
+ u8 *ibuf;
+ u32 ibuf_len;
+};
+
+struct ljca_stub {
+ struct list_head list;
+ u8 type;
+ struct usb_interface *intf;
+ struct mutex mutex;
+ spinlock_t event_cb_lock;
+
+ struct ljca_stub_packet ipacket;
+
+ /* for identify ack */
+ bool acked;
+ int cur_cmd;
+
+ struct ljca_event_cb_entry event_entry;
+};
+
+static inline void *ljca_priv(const struct ljca_stub *stub)
+{
+ return (char *)stub + sizeof(struct ljca_stub);
+}
+
+enum ljca_state {
+ LJCA_STOPPED,
+ LJCA_INITED,
+ LJCA_RESET_HANDSHAKE,
+ LJCA_RESET_SYNCED,
+ LJCA_ENUM_GPIO_COMPLETE,
+ LJCA_ENUM_I2C_COMPLETE,
+ LJCA_ENUM_SPI_COMPLETE,
+ LJCA_SUSPEND,
+ LJCA_STARTED,
+ LJCA_FAILED,
+};
+
+struct ljca_dev {
+ struct usb_device *udev;
+ struct usb_interface *intf;
+ u8 in_ep; /* the address of the bulk in endpoint */
+ u8 out_ep; /* the address of the bulk out endpoint */
+
+ /* the urb/buffer for read */
+ struct urb *in_urb;
+ unsigned char *ibuf;
+ size_t ibuf_len;
+
+ int state;
+
+ atomic_t active_transfers;
+ wait_queue_head_t disconnect_wq;
+
+ struct list_head stubs_list;
+
+ /* to wait for an ongoing write ack */
+ wait_queue_head_t ack_wq;
+
+ struct mfd_cell *cells;
+ int cell_count;
+};
+
+static int try_match_acpi_hid(struct acpi_device *child,
+ struct mfd_cell_acpi_match *match, char **hids,
+ int hids_num)
+{
+ struct acpi_device_id ids[2] = {};
+ int i;
+
+ for (i = 0; i < hids_num; i++) {
+ strlcpy(ids[0].id, hids[i], sizeof(ids[0].id));
+ if (!acpi_match_device_ids(child, ids)) {
+ match->pnpid = hids[i];
+ break;
+ }
+ }
+
+ return 0;
+}
+
+static int precheck_acpi_hid(struct usb_interface *intf)
+{
+ struct acpi_device *parent, *child;
+
+ parent = ACPI_COMPANION(&intf->dev);
+ if (!parent)
+ return -ENODEV;
+
+ list_for_each_entry (child, &parent->children, node) {
+ try_match_acpi_hid(child,
+ &ljca_acpi_match_gpio,
+ gpio_hids, ARRAY_SIZE(gpio_hids));
+ try_match_acpi_hid(child,
+ &ljca_acpi_match_i2cs[0],
+ i2c_hids, ARRAY_SIZE(i2c_hids));
+ try_match_acpi_hid(child,
+ &ljca_acpi_match_i2cs[1],
+ i2c_hids, ARRAY_SIZE(i2c_hids));
+ try_match_acpi_hid(child,
+ &ljca_acpi_match_spis[0],
+ spi_hids, ARRAY_SIZE(spi_hids));
+ }
+
+ return 0;
+}
+
+static bool ljca_validate(void *data, u32 data_len)
+{
+ struct ljca_msg *header = (struct ljca_msg *)data;
+
+ return (header->len + sizeof(*header) == data_len);
+}
+
+
+void ljca_dump(struct ljca_dev *ljca, void *buf, int len)
+{
+ int i;
+ u8 tmp[256] = { 0 };
+ int n = 0;
+
+ if (!len)
+ return;
+
+ for (i = 0; i < len; i++)
+ n += scnprintf(tmp + n, sizeof(tmp) - n - 1, "%02x ", ((u8*)buf)[i]);
+
+ dev_dbg(&ljca->intf->dev, "%s\n", tmp);
+}
+
+static struct ljca_stub *ljca_stub_alloc(struct ljca_dev *ljca, int priv_size)
+{
+ struct ljca_stub *stub;
+
+ stub = kzalloc(sizeof(*stub) + priv_size, GFP_KERNEL);
+ if (!stub)
+ return ERR_PTR(-ENOMEM);
+
+ mutex_init(&stub->mutex);
+ spin_lock_init(&stub->event_cb_lock);
+ INIT_LIST_HEAD(&stub->list);
+ list_add_tail(&stub->list, &ljca->stubs_list);
+ dev_dbg(&ljca->intf->dev, "enuming a stub success\n");
+ return stub;
+}
+
+static struct ljca_stub *ljca_stub_find(struct ljca_dev *ljca, u8 type)
+{
+ struct ljca_stub *stub;
+
+ list_for_each_entry (stub, &ljca->stubs_list, list) {
+ if (stub->type == type)
+ return stub;
+ }
+
+ dev_err(&ljca->intf->dev, "usb stub not find, type: %d", type);
+ return ERR_PTR(-ENODEV);
+}
+
+static void ljca_stub_notify(struct ljca_stub *stub, u8 cmd,
+ const void *evt_data, int len)
+{
+ unsigned long flags;
+ spin_lock_irqsave(&stub->event_cb_lock, flags);
+ if (stub->event_entry.notify && stub->event_entry.pdev)
+ stub->event_entry.notify(stub->event_entry.pdev, cmd, evt_data,
+ len);
+ spin_unlock_irqrestore(&stub->event_cb_lock, flags);
+}
+
+static int ljca_parse(struct ljca_dev *ljca, struct ljca_msg *header)
+{
+ struct ljca_stub *stub;
+
+ stub = ljca_stub_find(ljca, header->type);
+ if (IS_ERR(stub))
+ return PTR_ERR(stub);
+
+ if (!(header->flags & ACK_FLAG)) {
+ ljca_stub_notify(stub, header->cmd, header->data, header->len);
+ return 0;
+ }
+
+ if (stub->cur_cmd != header->cmd) {
+ dev_err(&ljca->intf->dev, "header->cmd:%x != stub->cur_cmd:%x",
+ header->cmd, stub->cur_cmd);
+ return -EINVAL;
+ }
+
+ stub->ipacket.ibuf_len = header->len;
+ if (stub->ipacket.ibuf)
+ memcpy(stub->ipacket.ibuf, header->data, header->len);
+
+ stub->acked = true;
+ wake_up(&ljca->ack_wq);
+
+ return 0;
+}
+
+static int ljca_stub_write(struct ljca_stub *stub, u8 cmd, const void *obuf,
+ int obuf_len, void *ibuf, int *ibuf_len, bool wait_ack)
+{
+ struct ljca_msg *header;
+ struct ljca_dev *ljca = usb_get_intfdata(stub->intf);
+ int ret;
+ u8 flags = CMPL_FLAG;
+ int actual;
+
+ atomic_inc(&ljca->active_transfers);
+ if (ljca->state == LJCA_STOPPED)
+ return -ENODEV;
+
+ if (obuf_len > MAX_PAYLOAD_SIZE)
+ return -EINVAL;
+
+ if (wait_ack)
+ flags |= ACK_FLAG;
+
+ stub->ipacket.ibuf_len = 0;
+ header = kmalloc(sizeof(*header) + obuf_len, GFP_KERNEL);
+ if (!header)
+ return -ENOMEM;
+
+ header->type = stub->type;
+ header->cmd = cmd;
+ header->flags = flags;
+ header->len = obuf_len;
+
+ memcpy(header->data, obuf, obuf_len);
+ dev_dbg(&ljca->intf->dev, "send: type:%d cmd:%d flags:%d len:%d\n",
+ header->type, header->cmd, header->flags, header->len);
+ ljca_dump(ljca, header->data, header->len);
+
+ mutex_lock(&stub->mutex);
+ stub->cur_cmd = cmd;
+ stub->ipacket.ibuf = ibuf;
+ stub->acked = false;
+ usb_autopm_get_interface(ljca->intf);
+ ret = usb_bulk_msg(ljca->udev,
+ usb_sndbulkpipe(ljca->udev, ljca->out_ep), header,
+ sizeof(struct ljca_msg) + obuf_len, &actual,
+ USB_WRITE_TIMEOUT);
+ kfree(header);
+ if (ret || actual != sizeof(struct ljca_msg) + obuf_len) {
+ dev_err(&ljca->intf->dev,
+ "bridge write failed ret:%d total_len:%d\n ", ret,
+ actual);
+ goto error;
+ }
+
+ usb_autopm_put_interface(ljca->intf);
+
+ if (wait_ack) {
+ ret = wait_event_timeout(
+ ljca->ack_wq, stub->acked,
+ msecs_to_jiffies(USB_WRITE_ACK_TIMEOUT));
+ if (!ret || !stub->acked) {
+ dev_err(&ljca->intf->dev,
+ "acked sem wait timed out ret:%d timeout:%d ack:%d\n",
+ ret, USB_WRITE_ACK_TIMEOUT, stub->acked);
+ ret = -ETIMEDOUT;
+ goto error;
+ }
+ }
+
+ if (ibuf_len)
+ *ibuf_len = stub->ipacket.ibuf_len;
+
+ stub->ipacket.ibuf = NULL;
+ stub->ipacket.ibuf_len = 0;
+ ret = 0;
+error:
+ atomic_dec(&ljca->active_transfers);
+ if (ljca->state == LJCA_STOPPED)
+ wake_up(&ljca->disconnect_wq);
+
+ mutex_unlock(&stub->mutex);
+ return ret;
+}
+
+static int ljca_transfer_internal(struct platform_device *pdev, u8 cmd, const void *obuf,
+ int obuf_len, void *ibuf, int *ibuf_len, bool wait_ack)
+{
+ struct ljca_platform_data *ljca_pdata;
+ struct ljca_dev *ljca;
+ struct ljca_stub *stub;
+
+ if (!pdev)
+ return -EINVAL;
+
+ ljca = dev_get_drvdata(pdev->dev.parent);
+ ljca_pdata = dev_get_platdata(&pdev->dev);
+ stub = ljca_stub_find(ljca, ljca_pdata->type);
+ if (IS_ERR(stub))
+ return PTR_ERR(stub);
+
+ return ljca_stub_write(stub, cmd, obuf, obuf_len, ibuf, ibuf_len, wait_ack);
+}
+
+int ljca_transfer(struct platform_device *pdev, u8 cmd, const void *obuf,
+ int obuf_len, void *ibuf, int *ibuf_len)
+{
+ return ljca_transfer_internal(pdev, cmd, obuf, obuf_len, ibuf, ibuf_len,
+ true);
+}
+EXPORT_SYMBOL_GPL(ljca_transfer);
+
+int ljca_transfer_noack(struct platform_device *pdev, u8 cmd, const void *obuf,
+ int obuf_len)
+{
+ return ljca_transfer_internal(pdev, cmd, obuf, obuf_len, NULL, NULL,
+ false);
+}
+EXPORT_SYMBOL_GPL(ljca_transfer_noack);
+
+int ljca_register_event_cb(struct platform_device *pdev,
+ ljca_event_cb_t event_cb)
+{
+ struct ljca_platform_data *ljca_pdata;
+ struct ljca_dev *ljca;
+ struct ljca_stub *stub;
+ unsigned long flags;
+
+ if (!pdev)
+ return -EINVAL;
+
+ ljca = dev_get_drvdata(pdev->dev.parent);
+ ljca_pdata = dev_get_platdata(&pdev->dev);
+ stub = ljca_stub_find(ljca, ljca_pdata->type);
+ if (IS_ERR(stub))
+ return PTR_ERR(stub);
+
+ spin_lock_irqsave(&stub->event_cb_lock, flags);
+ stub->event_entry.notify = event_cb;
+ stub->event_entry.pdev = pdev;
+ spin_unlock_irqrestore(&stub->event_cb_lock, flags);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ljca_register_event_cb);
+
+void ljca_unregister_event_cb(struct platform_device *pdev)
+{
+ struct ljca_platform_data *ljca_pdata;
+ struct ljca_dev *ljca;
+ struct ljca_stub *stub;
+ unsigned long flags;
+
+ ljca = dev_get_drvdata(pdev->dev.parent);
+ ljca_pdata = dev_get_platdata(&pdev->dev);
+ stub = ljca_stub_find(ljca, ljca_pdata->type);
+ if (IS_ERR(stub))
+ return;
+
+ spin_lock_irqsave(&stub->event_cb_lock, flags);
+ stub->event_entry.notify = NULL;
+ stub->event_entry.pdev = NULL;
+ spin_unlock_irqrestore(&stub->event_cb_lock, flags);
+}
+EXPORT_SYMBOL_GPL(ljca_unregister_event_cb);
+
+static void ljca_stub_cleanup(struct ljca_dev *ljca)
+{
+ struct ljca_stub *stub;
+ struct ljca_stub *next;
+
+ list_for_each_entry_safe (stub, next, &ljca->stubs_list, list) {
+ list_del_init(&stub->list);
+ mutex_destroy(&stub->mutex);
+ kfree(stub);
+ }
+}
+
+static void ljca_read_complete(struct urb *urb)
+{
+ struct ljca_dev *ljca = urb->context;
+ struct ljca_msg *header = urb->transfer_buffer;
+ int len = urb->actual_length;
+ int ret;
+
+ dev_dbg(&ljca->intf->dev,
+ "bulk read urb got message from fw, status:%d data_len:%d\n",
+ urb->status, urb->actual_length);
+
+ if (urb->status) {
+ /* sync/async unlink faults aren't errors */
+ if (urb->status == -ENOENT || urb->status == -ECONNRESET ||
+ urb->status == -ESHUTDOWN)
+ return;
+
+ dev_err(&ljca->intf->dev, "read bulk urb transfer failed: %d\n",
+ urb->status);
+ goto resubmit;
+ }
+
+ dev_dbg(&ljca->intf->dev, "receive: type:%d cmd:%d flags:%d len:%d\n",
+ header->type, header->cmd, header->flags, header->len);
+ ljca_dump(ljca, header->data, header->len);
+
+ if (!ljca_validate(header, len)) {
+ dev_err(&ljca->intf->dev,
+ "data not correct header->len:%d payload_len:%d\n ",
+ header->len, len);
+ goto resubmit;
+ }
+
+ ret = ljca_parse(ljca, header);
+ if (ret)
+ dev_err(&ljca->intf->dev,
+ "failed to parse data: ret:%d type:%d len: %d", ret,
+ header->type, header->len);
+
+resubmit:
+ ret = usb_submit_urb(urb, GFP_KERNEL);
+ if (ret)
+ dev_err(&ljca->intf->dev,
+ "failed submitting read urb, error %d\n", ret);
+}
+
+static int ljca_start(struct ljca_dev *ljca)
+{
+ int ret;
+
+ usb_fill_bulk_urb(ljca->in_urb, ljca->udev,
+ usb_rcvbulkpipe(ljca->udev, ljca->in_ep), ljca->ibuf,
+ ljca->ibuf_len, ljca_read_complete, ljca);
+
+ ret = usb_submit_urb(ljca->in_urb, GFP_KERNEL);
+ if (ret) {
+ dev_err(&ljca->intf->dev,
+ "failed submitting read urb, error %d\n", ret);
+ }
+ return ret;
+}
+
+struct ljca_mng_priv {
+ long reset_id;
+};
+
+static int ljca_mng_reset_handshake(struct ljca_stub *stub)
+{
+ int ret;
+ struct ljca_mng_priv *priv;
+ __le32 reset_id;
+ __le32 reset_id_ret = 0;
+ int ilen;
+
+ priv = ljca_priv(stub);
+ reset_id = cpu_to_le32(priv->reset_id++);
+ ret = ljca_stub_write(stub, MNG_RESET_NOTIFY, &reset_id,
+ sizeof(reset_id), &reset_id_ret, &ilen, true);
+ if (ret || ilen != sizeof(reset_id_ret) || reset_id_ret != reset_id) {
+ dev_err(&stub->intf->dev,
+ "MNG_RESET_NOTIFY failed reset_id:%d/%d ret:%d\n",
+ le32_to_cpu(reset_id_ret), le32_to_cpu(reset_id), ret);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static inline int ljca_mng_reset(struct ljca_stub *stub)
+{
+ return ljca_stub_write(stub, MNG_RESET, NULL, 0, NULL, NULL, true);
+}
+
+static int ljca_add_mfd_cell(struct ljca_dev *ljca, struct mfd_cell *cell)
+{
+ struct mfd_cell *new_cells;
+
+ /* Enumerate the device even if it does not appear in DSDT */
+ if (!cell->acpi_match->pnpid)
+ dev_warn(&ljca->intf->dev,
+ "The HID of cell %s does not exist in DSDT\n",
+ cell->name);
+
+ new_cells = krealloc_array(ljca->cells, (ljca->cell_count + 1),
+ sizeof(struct mfd_cell), GFP_KERNEL);
+ if (!new_cells)
+ return -ENOMEM;
+
+ memcpy(&new_cells[ljca->cell_count], cell, sizeof(*cell));
+ ljca->cells = new_cells;
+ ljca->cell_count++;
+
+ return 0;
+}
+
+static int ljca_gpio_stub_init(struct ljca_dev *ljca,
+ struct ljca_gpio_descriptor *desc)
+{
+ struct ljca_stub *stub;
+ struct mfd_cell cell = { 0 };
+ struct ljca_platform_data *pdata;
+ int gpio_num = desc->pins_per_bank * desc->bank_num;
+ int i;
+ u32 valid_pin[MAX_GPIO_NUM / (sizeof(u32) * BITS_PER_BYTE)];
+
+ if (gpio_num > MAX_GPIO_NUM)
+ return -EINVAL;
+
+ stub = ljca_stub_alloc(ljca, sizeof(*pdata));
+ if (IS_ERR(stub))
+ return PTR_ERR(stub);
+
+ stub->type = GPIO_STUB;
+ stub->intf = ljca->intf;
+
+ pdata = ljca_priv(stub);
+ pdata->type = stub->type;
+ pdata->gpio_info.num = gpio_num;
+
+ for (i = 0; i < desc->bank_num; i++)
+ valid_pin[i] = desc->bank_desc[i].valid_pins;
+
+ bitmap_from_arr32(pdata->gpio_info.valid_pin_map, valid_pin, gpio_num);
+
+ cell.name = "ljca-gpio";
+ cell.platform_data = pdata;
+ cell.pdata_size = sizeof(*pdata);
+ cell.acpi_match = &ljca_acpi_match_gpio;
+
+ return ljca_add_mfd_cell(ljca, &cell);
+}
+
+static int ljca_mng_enum_gpio(struct ljca_stub *stub)
+{
+ struct ljca_dev *ljca = usb_get_intfdata(stub->intf);
+ struct ljca_gpio_descriptor *desc;
+ int ret;
+ int len;
+
+ desc = kzalloc(MAX_PAYLOAD_SIZE, GFP_KERNEL);
+ if (!desc)
+ return -ENOMEM;
+
+ ret = ljca_stub_write(stub, MNG_ENUM_GPIO, NULL, 0, desc, &len, true);
+ if (ret || len != sizeof(*desc) + desc->bank_num *
+ sizeof(desc->bank_desc[0])) {
+ dev_err(&stub->intf->dev,
+ "enum gpio failed ret:%d len:%d bank_num:%d\n", ret,
+ len, desc->bank_num);
+ }
+
+ ret = ljca_gpio_stub_init(ljca, desc);
+ kfree(desc);
+ return ret;
+}
+
+static int ljca_i2c_stub_init(struct ljca_dev *ljca,
+ struct ljca_i2c_descriptor *desc)
+{
+ struct ljca_stub *stub;
+ struct ljca_platform_data *pdata;
+ int i;
+ int ret;
+
+ stub = ljca_stub_alloc(ljca, desc->num * sizeof(*pdata));
+ if (IS_ERR(stub))
+ return PTR_ERR(stub);
+
+ stub->type = I2C_STUB;
+ stub->intf = ljca->intf;
+ pdata = ljca_priv(stub);
+
+ for (i = 0; i < desc->num; i++) {
+ struct mfd_cell cell = { 0 };
+ pdata[i].type = stub->type;
+
+ pdata[i].i2c_info.id = desc->info[i].id;
+ pdata[i].i2c_info.capacity = desc->info[i].capacity;
+ pdata[i].i2c_info.intr_pin = desc->info[i].intr_pin;
+
+ cell.name = "ljca-i2c";
+ cell.platform_data = &pdata[i];
+ cell.pdata_size = sizeof(pdata[i]);
+ if (i < ARRAY_SIZE(ljca_acpi_match_i2cs))
+ cell.acpi_match = &ljca_acpi_match_i2cs[i];
+
+ ret = ljca_add_mfd_cell(ljca, &cell);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int ljca_mng_enum_i2c(struct ljca_stub *stub)
+{
+ struct ljca_dev *ljca = usb_get_intfdata(stub->intf);
+ struct ljca_i2c_descriptor *desc;
+ int ret;
+ int len;
+
+ desc = kzalloc(MAX_PAYLOAD_SIZE, GFP_KERNEL);
+ if (!desc)
+ return -ENOMEM;
+
+ ret = ljca_stub_write(stub, MNG_ENUM_I2C, NULL, 0, desc, &len, true);
+ if (ret) {
+ dev_err(&stub->intf->dev,
+ "MNG_ENUM_I2C failed ret:%d len:%d num:%d\n", ret, len,
+ desc->num);
+ kfree(desc);
+ return -EIO;
+ }
+
+ ret = ljca_i2c_stub_init(ljca, desc);
+ kfree(desc);
+ return ret;
+}
+
+static int ljca_spi_stub_init(struct ljca_dev *ljca,
+ struct ljca_spi_descriptor *desc)
+{
+ struct ljca_stub *stub;
+ struct ljca_platform_data *pdata;
+ int i;
+ int ret;
+
+ stub = ljca_stub_alloc(ljca, desc->num * sizeof(*pdata));
+ if (IS_ERR(stub))
+ return PTR_ERR(stub);
+
+ stub->type = SPI_STUB;
+ stub->intf = ljca->intf;
+ pdata = ljca_priv(stub);
+
+ for (i = 0; i < desc->num; i++) {
+ struct mfd_cell cell = { 0 };
+ pdata[i].type = stub->type;
+
+ pdata[i].spi_info.id = desc->info[i].id;
+ pdata[i].spi_info.capacity = desc->info[i].capacity;
+
+ cell.name = "ljca-spi";
+ cell.platform_data = &pdata[i];
+ cell.pdata_size = sizeof(pdata[i]);
+ if (i < ARRAY_SIZE(ljca_acpi_match_spis))
+ cell.acpi_match = &ljca_acpi_match_spis[i];
+
+ ret = ljca_add_mfd_cell(ljca, &cell);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int ljca_mng_enum_spi(struct ljca_stub *stub)
+{
+ struct ljca_dev *ljca = usb_get_intfdata(stub->intf);
+ struct ljca_spi_descriptor *desc;
+ int ret;
+ int len;
+
+ desc = kzalloc(MAX_PAYLOAD_SIZE, GFP_KERNEL);
+ if (!desc)
+ return -ENOMEM;
+
+ ret = ljca_stub_write(stub, MNG_ENUM_SPI, NULL, 0, desc, &len, true);
+ if (ret) {
+ dev_err(&stub->intf->dev,
+ "MNG_ENUM_I2C failed ret:%d len:%d num:%d\n", ret, len,
+ desc->num);
+ kfree(desc);
+ return -EIO;
+ }
+
+ ret = ljca_spi_stub_init(ljca, desc);
+ kfree(desc);
+ return ret;
+}
+
+static int ljca_mng_get_version(struct ljca_stub *stub, char *buf)
+{
+ struct fw_version version = {0};
+ int ret;
+ int len;
+
+ if (!buf)
+ return -EINVAL;
+
+ ret = ljca_stub_write(stub, MNG_GET_VERSION, NULL, 0, &version, &len, true);
+ if (ret || len < sizeof(struct fw_version)) {
+ dev_err(&stub->intf->dev,
+ "MNG_GET_VERSION failed ret:%d len:%d\n", ret, len);
+ return ret;
+ }
+
+ return sysfs_emit(buf, "%d.%d.%d.%d\n", version.major, version.minor,
+ le16_to_cpu(version.patch), le16_to_cpu(version.build));
+}
+
+static inline int ljca_mng_set_dfu_mode(struct ljca_stub *stub)
+{
+ return ljca_stub_write(stub, MNG_SET_DFU_MODE, NULL, 0, NULL, NULL, true);
+}
+
+static int ljca_mng_link(struct ljca_dev *ljca, struct ljca_stub *stub)
+{
+ int ret;
+
+ ret = ljca_mng_reset_handshake(stub);
+ if (ret)
+ return ret;
+
+ ljca->state = LJCA_RESET_SYNCED;
+
+ ret = ljca_mng_enum_gpio(stub);
+ if (ret)
+ return ret;
+
+ ljca->state = LJCA_ENUM_GPIO_COMPLETE;
+
+ ret = ljca_mng_enum_i2c(stub);
+ if (ret)
+ return ret;
+
+ ljca->state = LJCA_ENUM_I2C_COMPLETE;
+
+ ret = ljca_mng_enum_spi(stub);
+ if (ret)
+ return ret;
+
+ ljca->state = LJCA_ENUM_SPI_COMPLETE;
+ return ret;
+}
+
+static int ljca_mng_init(struct ljca_dev *ljca)
+{
+ struct ljca_stub *stub;
+ struct ljca_mng_priv *priv;
+ int ret;
+
+ stub = ljca_stub_alloc(ljca, sizeof(*priv));
+ if (IS_ERR(stub))
+ return PTR_ERR(stub);
+
+ priv = ljca_priv(stub);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->reset_id = 0;
+ stub->type = MNG_STUB;
+ stub->intf = ljca->intf;
+
+ ret = ljca_mng_link(ljca, stub);
+ if (ret)
+ dev_err(&ljca->intf->dev,
+ "mng stub link done ret:%d state:%d\n", ret,
+ ljca->state);
+
+ return ret;
+}
+
+static inline int ljca_diag_get_fw_log(struct ljca_stub *stub, void *buf)
+{
+ int ret;
+ int len;
+
+ if (!buf)
+ return -EINVAL;
+
+ ret = ljca_stub_write(stub, DIAG_GET_FW_LOG, NULL, 0, buf, &len, true);
+ if (ret)
+ return ret;
+
+ return len;
+}
+
+static inline int ljca_diag_get_coredump(struct ljca_stub *stub, void *buf)
+{
+ int ret;
+ int len;
+
+ if (!buf)
+ return -EINVAL;
+
+ ret = ljca_stub_write(stub, DIAG_GET_FW_COREDUMP, NULL, 0, buf, &len, true);
+ if (ret)
+ return ret;
+
+ return len;
+}
+
+static inline int ljca_diag_set_trace_level(struct ljca_stub *stub, u8 level)
+{
+ return ljca_stub_write(stub, DIAG_SET_TRACE_LEVEL, &level,
+ sizeof(level), NULL, NULL, true);
+}
+
+static int ljca_diag_init(struct ljca_dev *ljca)
+{
+ struct ljca_stub *stub;
+
+ stub = ljca_stub_alloc(ljca, 0);
+ if (IS_ERR(stub))
+ return PTR_ERR(stub);
+
+ stub->type = DIAG_STUB;
+ stub->intf = ljca->intf;
+ return 0;
+}
+
+static void ljca_delete(struct ljca_dev *ljca)
+{
+ usb_free_urb(ljca->in_urb);
+ usb_put_intf(ljca->intf);
+ usb_put_dev(ljca->udev);
+ kfree(ljca->ibuf);
+ kfree(ljca->cells);
+ kfree(ljca);
+}
+
+static int ljca_init(struct ljca_dev *ljca)
+{
+ init_waitqueue_head(&ljca->ack_wq);
+ init_waitqueue_head(&ljca->disconnect_wq);
+ INIT_LIST_HEAD(&ljca->stubs_list);
+
+ ljca->state = LJCA_INITED;
+
+ return 0;
+}
+
+static void ljca_stop(struct ljca_dev *ljca)
+{
+ ljca->state = LJCA_STOPPED;
+ wait_event_interruptible(ljca->disconnect_wq,
+ !atomic_read(&ljca->active_transfers));
+ usb_kill_urb(ljca->in_urb);
+}
+
+static ssize_t cmd_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct ljca_dev *ljca = usb_get_intfdata(intf);
+ struct ljca_stub *mng_stub = ljca_stub_find(ljca, MNG_STUB);
+ struct ljca_stub *diag_stub = ljca_stub_find(ljca, DIAG_STUB);
+
+ if (sysfs_streq(buf, "dfu"))
+ ljca_mng_set_dfu_mode(mng_stub);
+ else if (sysfs_streq(buf, "reset"))
+ ljca_mng_reset(mng_stub);
+ else if (sysfs_streq(buf, "debug"))
+ ljca_diag_set_trace_level(diag_stub, 3);
+
+ return count;
+}
+
+static ssize_t cmd_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ return sysfs_emit(buf, "%s\n", "supported cmd: [dfu, reset, debug]");
+}
+static DEVICE_ATTR_RW(cmd);
+
+static ssize_t version_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct ljca_dev *ljca = usb_get_intfdata(intf);
+ struct ljca_stub *stub = ljca_stub_find(ljca, MNG_STUB);
+
+ return ljca_mng_get_version(stub, buf);
+}
+static DEVICE_ATTR_RO(version);
+
+static ssize_t log_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct ljca_dev *ljca = usb_get_intfdata(intf);
+ struct ljca_stub *diag_stub = ljca_stub_find(ljca, DIAG_STUB);
+
+ return ljca_diag_get_fw_log(diag_stub, buf);
+}
+static DEVICE_ATTR_RO(log);
+
+static ssize_t coredump_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct ljca_dev *ljca = usb_get_intfdata(intf);
+ struct ljca_stub *diag_stub = ljca_stub_find(ljca, DIAG_STUB);
+
+ return ljca_diag_get_coredump(diag_stub, buf);
+}
+static DEVICE_ATTR_RO(coredump);
+
+static struct attribute *ljca_attrs[] = {
+ &dev_attr_version.attr,
+ &dev_attr_cmd.attr,
+ &dev_attr_log.attr,
+ &dev_attr_coredump.attr,
+ NULL,
+};
+ATTRIBUTE_GROUPS(ljca);
+
+static int ljca_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct ljca_dev *ljca;
+ struct usb_endpoint_descriptor *bulk_in, *bulk_out;
+ int ret;
+
+ ret = precheck_acpi_hid(intf);
+ if(ret)
+ return ret;
+
+
+ /* allocate memory for our device state and initialize it */
+ ljca = kzalloc(sizeof(*ljca), GFP_KERNEL);
+ if (!ljca)
+ return -ENOMEM;
+
+ ljca_init(ljca);
+ ljca->udev = usb_get_dev(interface_to_usbdev(intf));
+ ljca->intf = usb_get_intf(intf);
+
+ /* set up the endpoint information use only the first bulk-in and bulk-out endpoints */
+ ret = usb_find_common_endpoints(intf->cur_altsetting, &bulk_in,
+ &bulk_out, NULL, NULL);
+ if (ret) {
+ dev_err(&intf->dev,
+ "Could not find both bulk-in and bulk-out endpoints\n");
+ goto error;
+ }
+
+ ljca->ibuf_len = usb_endpoint_maxp(bulk_in);
+ ljca->in_ep = bulk_in->bEndpointAddress;
+ ljca->ibuf = kzalloc(ljca->ibuf_len, GFP_KERNEL);
+ if (!ljca->ibuf) {
+ ret = -ENOMEM;
+ goto error;
+ }
+
+ ljca->in_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!ljca->in_urb) {
+ ret = -ENOMEM;
+ goto error;
+ }
+
+ ljca->out_ep = bulk_out->bEndpointAddress;
+ dev_dbg(&intf->dev, "bulk_in size:%zu addr:%d bulk_out addr:%d\n",
+ ljca->ibuf_len, ljca->in_ep, ljca->out_ep);
+
+ /* save our data pointer in this intf device */
+ usb_set_intfdata(intf, ljca);
+ ret = ljca_start(ljca);
+ if (ret) {
+ dev_err(&intf->dev, "bridge read start failed ret %d\n", ret);
+ goto error;
+ }
+
+ ret = ljca_mng_init(ljca);
+ if (ret) {
+ dev_err(&intf->dev, "register mng stub failed ret %d\n", ret);
+ goto error;
+ }
+
+ ret = ljca_diag_init(ljca);
+ if (ret) {
+ dev_err(&intf->dev, "register diag stub failed ret %d\n", ret);
+ goto error;
+ }
+
+ ret = mfd_add_hotplug_devices(&intf->dev, ljca->cells,
+ ljca->cell_count);
+ if (ret) {
+ dev_err(&intf->dev, "failed to add mfd devices to core %d\n",
+ ljca->cell_count);
+ goto error;
+ }
+
+ ljca->state = LJCA_STARTED;
+ dev_info(&intf->dev, "LJCA USB device init success\n");
+ return 0;
+
+error:
+ dev_err(&intf->dev, "LJCA USB device init failed\n");
+ /* this frees allocated memory */
+ ljca_stub_cleanup(ljca);
+ ljca_delete(ljca);
+ return ret;
+}
+
+static void ljca_disconnect(struct usb_interface *intf)
+{
+ struct ljca_dev *ljca;
+
+ ljca = usb_get_intfdata(intf);
+
+ ljca_stop(ljca);
+ mfd_remove_devices(&intf->dev);
+ ljca_stub_cleanup(ljca);
+ usb_set_intfdata(intf, NULL);
+ ljca_delete(ljca);
+ dev_dbg(&intf->dev, "LJCA disconnected\n");
+}
+
+static int ljca_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct ljca_dev *ljca = usb_get_intfdata(intf);
+
+ ljca_stop(ljca);
+ ljca->state = LJCA_SUSPEND;
+
+ dev_dbg(&intf->dev, "LJCA suspend\n");
+ return 0;
+}
+
+static int ljca_resume(struct usb_interface *intf)
+{
+ struct ljca_dev *ljca = usb_get_intfdata(intf);
+
+ ljca->state = LJCA_STARTED;
+ dev_dbg(&intf->dev, "LJCA resume\n");
+ return ljca_start(ljca);
+}
+
+static const struct usb_device_id ljca_table[] = {
+ {USB_DEVICE(0x8086, 0x0b63)},
+ {}
+};
+MODULE_DEVICE_TABLE(usb, ljca_table);
+
+static struct usb_driver ljca_driver = {
+ .name = "ljca",
+ .probe = ljca_probe,
+ .disconnect = ljca_disconnect,
+ .suspend = ljca_suspend,
+ .resume = ljca_resume,
+ .id_table = ljca_table,
+ .dev_groups = ljca_groups,
+ .supports_autosuspend = 1,
+};
+
+module_usb_driver(ljca_driver);
+
+MODULE_AUTHOR("Ye Xiang <xiang.ye at intel.com>");
+MODULE_AUTHOR("Zhang Lixu <lixu.zhang at intel.com>");
+MODULE_DESCRIPTION("Intel La Jolla Cove Adapter USB driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 0f5a49fc7c9e0..6208afacd747e 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -477,6 +477,7 @@ source "drivers/misc/ti-st/Kconfig"
source "drivers/misc/lis3lv02d/Kconfig"
source "drivers/misc/altera-stapl/Kconfig"
source "drivers/misc/mei/Kconfig"
+source "drivers/misc/ivsc/Kconfig"
source "drivers/misc/vmw_vmci/Kconfig"
source "drivers/misc/genwqe/Kconfig"
source "drivers/misc/echo/Kconfig"
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index a086197af5447..5be7fe9d36872 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -41,6 +41,7 @@ obj-y += ti-st/
obj-y += lis3lv02d/
obj-$(CONFIG_ALTERA_STAPL) +=altera-stapl/
obj-$(CONFIG_INTEL_MEI) += mei/
+obj-$(CONFIG_INTEL_VSC) += ivsc/
obj-$(CONFIG_VMWARE_VMCI) += vmw_vmci/
obj-$(CONFIG_LATTICE_ECP3_CONFIG) += lattice-ecp3-config.o
obj-$(CONFIG_SRAM) += sram.o
diff --git a/drivers/misc/ivsc/Kconfig b/drivers/misc/ivsc/Kconfig
new file mode 100644
index 0000000000000..b46b72c7a0d3d
--- /dev/null
+++ b/drivers/misc/ivsc/Kconfig
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2021, Intel Corporation. All rights reserved.
+
+config INTEL_VSC
+ tristate "Intel VSC"
+ select INTEL_MEI_VSC
+ help
+ Add support of Intel Visual Sensing Controller (IVSC).
+
+config INTEL_VSC_CSI
+ tristate "Intel VSC CSI client"
+ depends on INTEL_VSC
+ select INTEL_MEI
+ help
+ Add CSI support for Intel Visual Sensing Controller (IVSC).
+
+config INTEL_VSC_ACE
+ tristate "Intel VSC ACE client"
+ depends on INTEL_VSC
+ select INTEL_MEI
+ help
+ Add ACE support for Intel Visual Sensing Controller (IVSC).
+
+config INTEL_VSC_PSE
+ tristate "Intel VSC PSE client"
+ depends on DEBUG_FS
+ select INTEL_MEI
+ select INTEL_MEI_VSC
+ help
+ Add PSE support for Intel Visual Sensing Controller (IVSC) to
+ expose debugging information in files under /sys/kernel/debug/.
+
+config INTEL_VSC_ACE_DEBUG
+ tristate "Intel VSC ACE debug client"
+ depends on DEBUG_FS
+ select INTEL_MEI
+ select INTEL_MEI_VSC
+ help
+ Add ACE debug support for Intel Visual Sensing Controller (IVSC)
+ to expose debugging information in files under /sys/kernel/debug/.
diff --git a/drivers/misc/ivsc/Makefile b/drivers/misc/ivsc/Makefile
new file mode 100644
index 0000000000000..809707404cf92
--- /dev/null
+++ b/drivers/misc/ivsc/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2021, Intel Corporation. All rights reserved.
+
+obj-$(CONFIG_INTEL_VSC) += intel_vsc.o
+obj-$(CONFIG_INTEL_VSC_CSI) += mei_csi.o
+obj-$(CONFIG_INTEL_VSC_ACE) += mei_ace.o
+obj-$(CONFIG_INTEL_VSC_PSE) += mei_pse.o
+obj-$(CONFIG_INTEL_VSC_ACE_DEBUG) += mei_ace_debug.o
diff --git a/drivers/misc/ivsc/intel_vsc.c b/drivers/misc/ivsc/intel_vsc.c
new file mode 100644
index 0000000000000..40ec0d5ef7c4c
--- /dev/null
+++ b/drivers/misc/ivsc/intel_vsc.c
@@ -0,0 +1,250 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2021 Intel Corporation */
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/vsc.h>
+
+#include "intel_vsc.h"
+
+#define ACE_PRIVACY_ON 2
+
+struct intel_vsc {
+ spinlock_t lock;
+ struct mutex mutex;
+
+ void *csi;
+ struct vsc_csi_ops *csi_ops;
+ uint16_t csi_registerred;
+
+ void *ace;
+ struct vsc_ace_ops *ace_ops;
+ uint16_t ace_registerred;
+};
+
+static struct intel_vsc vsc;
+
+static int check_component_ready(void)
+{
+ int ret = -1;
+ unsigned long flags;
+
+ spin_lock_irqsave(&vsc.lock, flags);
+
+ if (vsc.ace_registerred && vsc.csi_registerred)
+ ret = 0;
+
+ spin_unlock_irqrestore(&vsc.lock, flags);
+
+ return ret;
+}
+
+static void update_camera_status(struct vsc_camera_status *status,
+ struct camera_status *s)
+{
+ if (status && s) {
+ status->owner = s->camera_owner;
+ status->exposure_level = s->exposure_level;
+ status->status = VSC_PRIVACY_OFF;
+
+ if (s->privacy_stat == ACE_PRIVACY_ON)
+ status->status = VSC_PRIVACY_ON;
+ }
+}
+
+int vsc_register_ace(void *ace, struct vsc_ace_ops *ops)
+{
+ unsigned long flags;
+
+ if (ace && ops) {
+ if (ops->ipu_own_camera && ops->ace_own_camera) {
+ spin_lock_irqsave(&vsc.lock, flags);
+
+ vsc.ace = ace;
+ vsc.ace_ops = ops;
+ vsc.ace_registerred = true;
+
+ spin_unlock_irqrestore(&vsc.lock, flags);
+
+ return 0;
+ }
+ }
+
+ pr_err("register ace failed\n");
+ return -1;
+}
+EXPORT_SYMBOL_GPL(vsc_register_ace);
+
+void vsc_unregister_ace(void)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&vsc.lock, flags);
+
+ vsc.ace_registerred = false;
+
+ spin_unlock_irqrestore(&vsc.lock, flags);
+}
+EXPORT_SYMBOL_GPL(vsc_unregister_ace);
+
+int vsc_register_csi(void *csi, struct vsc_csi_ops *ops)
+{
+ unsigned long flags;
+
+ if (csi && ops) {
+ if (ops->set_privacy_callback &&
+ ops->set_owner && ops->set_mipi_conf) {
+ spin_lock_irqsave(&vsc.lock, flags);
+
+ vsc.csi = csi;
+ vsc.csi_ops = ops;
+ vsc.csi_registerred = true;
+
+ spin_unlock_irqrestore(&vsc.lock, flags);
+
+ return 0;
+ }
+ }
+
+ pr_err("register csi failed\n");
+ return -1;
+}
+EXPORT_SYMBOL_GPL(vsc_register_csi);
+
+void vsc_unregister_csi(void)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&vsc.lock, flags);
+
+ vsc.csi_registerred = false;
+
+ spin_unlock_irqrestore(&vsc.lock, flags);
+}
+EXPORT_SYMBOL_GPL(vsc_unregister_csi);
+
+int vsc_acquire_camera_sensor(struct vsc_mipi_config *config,
+ vsc_privacy_callback_t callback,
+ void *handle,
+ struct vsc_camera_status *status)
+{
+ int ret;
+ struct camera_status s;
+ struct mipi_conf conf = { 0 };
+
+ struct vsc_csi_ops *csi_ops;
+ struct vsc_ace_ops *ace_ops;
+
+ if (!config)
+ return -EINVAL;
+
+ ret = check_component_ready();
+ if (ret < 0) {
+ pr_info("intel vsc not ready\n");
+ return -EAGAIN;
+ }
+
+ mutex_lock(&vsc.mutex);
+ /* no need check component again here */
+
+ csi_ops = vsc.csi_ops;
+ ace_ops = vsc.ace_ops;
+
+ csi_ops->set_privacy_callback(vsc.csi, callback, handle);
+
+ ret = ace_ops->ipu_own_camera(vsc.ace, &s);
+ if (ret) {
+ pr_err("ipu own camera failed\n");
+ goto err;
+ }
+ update_camera_status(status, &s);
+
+ ret = csi_ops->set_owner(vsc.csi, CSI_IPU);
+ if (ret) {
+ pr_err("ipu own csi failed\n");
+ goto err;
+ }
+
+ conf.lane_num = config->lane_num;
+ conf.freq = config->freq;
+ ret = csi_ops->set_mipi_conf(vsc.csi, &conf);
+ if (ret) {
+ pr_err("config mipi failed\n");
+ goto err;
+ }
+
+err:
+ mutex_unlock(&vsc.mutex);
+ msleep(100);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(vsc_acquire_camera_sensor);
+
+int vsc_release_camera_sensor(struct vsc_camera_status *status)
+{
+ int ret;
+ struct camera_status s;
+
+ struct vsc_csi_ops *csi_ops;
+ struct vsc_ace_ops *ace_ops;
+
+ ret = check_component_ready();
+ if (ret < 0) {
+ pr_info("intel vsc not ready\n");
+ return -EAGAIN;
+ }
+
+ mutex_lock(&vsc.mutex);
+ /* no need check component again here */
+
+ csi_ops = vsc.csi_ops;
+ ace_ops = vsc.ace_ops;
+
+ csi_ops->set_privacy_callback(vsc.csi, NULL, NULL);
+
+ ret = csi_ops->set_owner(vsc.csi, CSI_FW);
+ if (ret) {
+ pr_err("vsc own csi failed\n");
+ goto err;
+ }
+
+ ret = ace_ops->ace_own_camera(vsc.ace, &s);
+ if (ret) {
+ pr_err("vsc own camera failed\n");
+ goto err;
+ }
+ update_camera_status(status, &s);
+
+err:
+ mutex_unlock(&vsc.mutex);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(vsc_release_camera_sensor);
+
+static int __init intel_vsc_init(void)
+{
+ memset(&vsc, 0, sizeof(struct intel_vsc));
+
+ spin_lock_init(&vsc.lock);
+ mutex_init(&vsc.mutex);
+
+ vsc.csi_registerred = false;
+ vsc.ace_registerred = false;
+
+ return 0;
+}
+
+static void __exit intel_vsc_exit(void)
+{
+}
+
+module_init(intel_vsc_init);
+module_exit(intel_vsc_exit);
+
+MODULE_AUTHOR("Intel Corporation");
+MODULE_LICENSE("GPL v2");
+MODULE_SOFTDEP("post: mei_csi mei_ace");
+MODULE_DESCRIPTION("Device driver for Intel VSC");
diff --git a/drivers/misc/ivsc/intel_vsc.h b/drivers/misc/ivsc/intel_vsc.h
new file mode 100644
index 0000000000000..6c17b95e40669
--- /dev/null
+++ b/drivers/misc/ivsc/intel_vsc.h
@@ -0,0 +1,177 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _INTEL_VSC_H_
+#define _INTEL_VSC_H_
+
+#include <linux/types.h>
+
+/* csi power state definition */
+enum csi_power_state {
+ POWER_OFF = 0,
+ POWER_ON,
+};
+
+/* csi ownership definition */
+enum csi_owner {
+ CSI_FW = 0,
+ CSI_IPU,
+};
+
+/* mipi configuration structure */
+struct mipi_conf {
+ uint32_t lane_num;
+ uint32_t freq;
+
+ /* for future use */
+ uint32_t rsvd[2];
+} __packed;
+
+/* camera status structure */
+struct camera_status {
+ uint8_t camera_owner : 2;
+ uint8_t privacy_stat : 2;
+
+ /* for future use */
+ uint8_t rsvd : 4;
+
+ uint32_t exposure_level;
+} __packed;
+
+struct vsc_ace_ops {
+ /**
+ * @brief ace own camera ownership
+ *
+ * @param ace The pointer of ace client device
+ * @param status The pointer of camera status
+ *
+ * @return 0 on success, negative on failure
+ */
+ int (*ace_own_camera)(void *ace, struct camera_status *status);
+
+ /**
+ * @brief ipu own camera ownership
+ *
+ * @param ace The pointer of ace client device
+ * @param status The pointer of camera status
+ *
+ * @return 0 on success, negative on failure
+ */
+ int (*ipu_own_camera)(void *ace, struct camera_status *status);
+
+ /**
+ * @brief get current camera status
+ *
+ * @param ace The pointer of ace client device
+ * @param status The pointer of camera status
+ *
+ * @return 0 on success, negative on failure
+ */
+ int (*get_camera_status)(void *ace, struct camera_status *status);
+};
+
+struct vsc_csi_ops {
+ /**
+ * @brief set csi ownership
+ *
+ * @param csi The pointer of csi client device
+ * @param owner The csi ownership going to set
+ *
+ * @return 0 on success, negative on failure
+ */
+ int (*set_owner)(void *csi, enum csi_owner owner);
+
+ /**
+ * @brief get current csi ownership
+ *
+ * @param csi The pointer of csi client device
+ * @param owner The pointer of csi ownership
+ *
+ * @return 0 on success, negative on failure
+ */
+ int (*get_owner)(void *csi, enum csi_owner *owner);
+
+ /**
+ * @brief configure csi with provided parameter
+ *
+ * @param csi The pointer of csi client device
+ * @param config The pointer of csi configuration
+ * parameter going to set
+ *
+ * @return 0 on success, negative on failure
+ */
+ int (*set_mipi_conf)(void *csi, struct mipi_conf *conf);
+
+ /**
+ * @brief get the current csi configuration
+ *
+ * @param csi The pointer of csi client device
+ * @param config The pointer of csi configuration parameter
+ * holding the returned result
+ *
+ * @return 0 on success, negative on failure
+ */
+ int (*get_mipi_conf)(void *csi, struct mipi_conf *conf);
+
+ /**
+ * @brief set csi power state
+ *
+ * @param csi The pointer of csi client device
+ * @param status csi power status going to set
+ *
+ * @return 0 on success, negative on failure
+ */
+ int (*set_power_state)(void *csi, enum csi_power_state state);
+
+ /**
+ * @brief get csi power state
+ *
+ * @param csi The pointer of csi client device
+ * @param status The pointer of variable holding csi power status
+ *
+ * @return 0 on success, negative on failure
+ */
+ int (*get_power_state)(void *csi, enum csi_power_state *state);
+
+ /**
+ * @brief set csi privacy callback
+ *
+ * @param csi The pointer of csi client device
+ * @param callback The pointer of privacy callback function
+ * @param handle Privacy callback runtime context
+ */
+ void (*set_privacy_callback)(void *csi,
+ vsc_privacy_callback_t callback,
+ void *handle);
+};
+
+/**
+ * @brief register ace client
+ *
+ * @param ace The pointer of ace client device
+ * @param ops The pointer of ace ops
+ *
+ * @return 0 on success, negative on failure
+ */
+int vsc_register_ace(void *ace, struct vsc_ace_ops *ops);
+
+/**
+ * @brief unregister ace client
+ */
+void vsc_unregister_ace(void);
+
+/**
+ * @brief register csi client
+ *
+ * @param csi The pointer of csi client device
+ * @param ops The pointer of csi ops
+ *
+ * @return 0 on success, negative on failure
+ */
+int vsc_register_csi(void *csi, struct vsc_csi_ops *ops);
+
+/**
+ * @brief unregister csi client
+ */
+void vsc_unregister_csi(void);
+
+#endif
diff --git a/drivers/misc/ivsc/mei_ace.c b/drivers/misc/ivsc/mei_ace.c
new file mode 100644
index 0000000000000..9fe65791cc51b
--- /dev/null
+++ b/drivers/misc/ivsc/mei_ace.c
@@ -0,0 +1,589 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2021 Intel Corporation */
+
+#include <linux/completion.h>
+#include <linux/kernel.h>
+#include <linux/mei_cl_bus.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/uuid.h>
+#include <linux/vsc.h>
+
+#include "intel_vsc.h"
+
+#define ACE_TIMEOUT (5 * HZ)
+#define MEI_ACE_DRIVER_NAME "vsc_ace"
+
+#define UUID_GET_FW_ID UUID_LE(0x6167DCFB, 0x72F1, 0x4584, \
+ 0xBF, 0xE3, 0x84, 0x17, 0x71, 0xAA, 0x79, 0x0B)
+
+enum notif_rsp {
+ NOTIF = 0,
+ REPLY = 1,
+};
+
+enum notify_type {
+ FW_READY = 8,
+ EXCEPTION = 10,
+ WATCHDOG_TIMEOUT = 15,
+ MANAGEMENT_NOTIF = 16,
+ NOTIFICATION = 27,
+};
+
+enum message_source {
+ FW_MSG = 0,
+ DRV_MSG = 1,
+};
+
+enum notify_event_type {
+ STATE_NOTIF = 0x1,
+ CTRL_NOTIF = 0x2,
+ DPHY_NOTIF = 0x3,
+};
+
+enum ace_cmd_type {
+ ACE_CMD_GET = 3,
+ ACE_CMD_SET = 4,
+};
+
+enum ace_cmd_id {
+ IPU_OWN_CAMERA = 0x13,
+ ACE_OWN_CAMERA = 0x14,
+ GET_CAMERA_STATUS = 0x15,
+ GET_FW_ID = 0x1A,
+};
+
+struct ace_cmd_hdr {
+ uint32_t module_id : 16;
+ uint32_t instance_id : 8;
+ uint32_t type : 5;
+ uint32_t rsp : 1;
+ uint32_t msg_tgt : 1;
+ uint32_t _hw_rsvd_0 : 1;
+
+ uint32_t param_size : 20;
+ uint32_t cmd_id : 8;
+ uint32_t final_block : 1;
+ uint32_t init_block : 1;
+ uint32_t _hw_rsvd_2 : 2;
+} __packed;
+
+union ace_cmd_param {
+ uuid_le uuid;
+ uint32_t param;
+};
+
+struct ace_cmd {
+ struct ace_cmd_hdr hdr;
+ union ace_cmd_param param;
+} __packed;
+
+union ace_notif_hdr {
+ struct _response {
+ uint32_t status : 24;
+ uint32_t type : 5;
+ uint32_t rsp : 1;
+ uint32_t msg_tgt : 1;
+ uint32_t _hw_rsvd_0 : 1;
+
+ uint32_t param_size : 20;
+ uint32_t cmd_id : 8;
+ uint32_t final_block : 1;
+ uint32_t init_block : 1;
+
+ uint32_t _hw_rsvd_2 : 2;
+ } __packed response;
+
+ struct _notify {
+ uint32_t rsvd2 : 16;
+ uint32_t notif_type : 8;
+ uint32_t type : 5;
+ uint32_t rsp : 1;
+ uint32_t msg_tgt : 1;
+ uint32_t _hw_rsvd_0 : 1;
+
+ uint32_t rsvd1 : 30;
+ uint32_t _hw_rsvd_2 : 2;
+ } __packed notify;
+
+ struct _management {
+ uint32_t event_id : 16;
+ uint32_t notif_type : 8;
+ uint32_t type : 5;
+ uint32_t rsp : 1;
+ uint32_t msg_tgt : 1;
+ uint32_t _hw_rsvd_0 : 1;
+
+ uint32_t event_data_size : 16;
+ uint32_t request_target : 1;
+ uint32_t request_type : 5;
+ uint32_t request_id : 8;
+ uint32_t _hw_rsvd_2 : 2;
+ } __packed management;
+};
+
+union ace_notif_cont {
+ uint16_t module_id;
+ uint8_t state_notif;
+ struct camera_status stat;
+};
+
+struct ace_notif {
+ union ace_notif_hdr hdr;
+ union ace_notif_cont cont;
+} __packed;
+
+struct mei_ace {
+ struct mei_cl_device *cldev;
+
+ struct mutex cmd_mutex;
+ struct ace_notif *cmd_resp;
+ struct completion response;
+
+ struct completion reply;
+ struct ace_notif *reply_notif;
+
+ uint16_t module_id;
+ uint16_t init_wait_q_woken;
+ wait_queue_head_t init_wait_q;
+};
+
+static inline void init_cmd_hdr(struct ace_cmd_hdr *hdr)
+{
+ memset(hdr, 0, sizeof(struct ace_cmd_hdr));
+
+ hdr->type = ACE_CMD_SET;
+ hdr->msg_tgt = DRV_MSG;
+ hdr->init_block = 1;
+ hdr->final_block = 1;
+}
+
+static uint16_t get_fw_id(struct mei_ace *ace)
+{
+ int ret;
+
+ ret = wait_event_interruptible(ace->init_wait_q,
+ ace->init_wait_q_woken);
+ if (ret < 0)
+ dev_warn(&ace->cldev->dev,
+ "incorrect fw id sent to fw\n");
+
+ return ace->module_id;
+}
+
+static int construct_command(struct mei_ace *ace, struct ace_cmd *cmd,
+ enum ace_cmd_id cmd_id)
+{
+ struct ace_cmd_hdr *hdr = &cmd->hdr;
+ union ace_cmd_param *param = &cmd->param;
+
+ init_cmd_hdr(hdr);
+
+ hdr->cmd_id = cmd_id;
+ switch (cmd_id) {
+ case GET_FW_ID:
+ param->uuid = UUID_GET_FW_ID;
+ hdr->param_size = sizeof(param->uuid);
+ break;
+ case ACE_OWN_CAMERA:
+ param->param = 0;
+ hdr->module_id = get_fw_id(ace);
+ hdr->param_size = sizeof(param->param);
+ break;
+ case IPU_OWN_CAMERA:
+ case GET_CAMERA_STATUS:
+ hdr->module_id = get_fw_id(ace);
+ break;
+ default:
+ dev_err(&ace->cldev->dev,
+ "sending not supported command");
+ break;
+ }
+
+ return hdr->param_size + sizeof(cmd->hdr);
+}
+
+static int send_command_sync(struct mei_ace *ace,
+ struct ace_cmd *cmd, size_t len)
+{
+ int ret;
+ struct ace_cmd_hdr *cmd_hdr = &cmd->hdr;
+ union ace_notif_hdr *resp_hdr = &ace->cmd_resp->hdr;
+ union ace_notif_hdr *reply_hdr = &ace->reply_notif->hdr;
+
+ reinit_completion(&ace->response);
+ reinit_completion(&ace->reply);
+
+ ret = mei_cldev_send(ace->cldev, (uint8_t *)cmd, len);
+ if (ret < 0) {
+ dev_err(&ace->cldev->dev,
+ "send command fail %d\n", ret);
+ return ret;
+ }
+
+ ret = wait_for_completion_killable_timeout(&ace->reply, ACE_TIMEOUT);
+ if (ret < 0) {
+ dev_err(&ace->cldev->dev,
+ "command %d notify reply error\n", cmd_hdr->cmd_id);
+ return ret;
+ } else if (ret == 0) {
+ dev_err(&ace->cldev->dev,
+ "command %d notify reply timeout\n", cmd_hdr->cmd_id);
+ ret = -ETIMEDOUT;
+ return ret;
+ }
+
+ if (reply_hdr->response.cmd_id != cmd_hdr->cmd_id) {
+ dev_err(&ace->cldev->dev,
+ "reply notify mismatch, sent %d but got %d\n",
+ cmd_hdr->cmd_id, reply_hdr->response.cmd_id);
+ return -1;
+ }
+
+ ret = reply_hdr->response.status;
+ if (ret) {
+ dev_err(&ace->cldev->dev,
+ "command %d reply wrong status = %d\n",
+ cmd_hdr->cmd_id, ret);
+ return -1;
+ }
+
+ ret = wait_for_completion_killable_timeout(&ace->response, ACE_TIMEOUT);
+ if (ret < 0) {
+ dev_err(&ace->cldev->dev,
+ "command %d response error\n", cmd_hdr->cmd_id);
+ return ret;
+ } else if (ret == 0) {
+ dev_err(&ace->cldev->dev,
+ "command %d response timeout\n", cmd_hdr->cmd_id);
+ ret = -ETIMEDOUT;
+ return ret;
+ }
+
+ if (resp_hdr->management.request_id != cmd_hdr->cmd_id) {
+ dev_err(&ace->cldev->dev,
+ "command response mismatch, sent %d but got %d\n",
+ cmd_hdr->cmd_id, resp_hdr->management.request_id);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int trigger_get_fw_id(struct mei_ace *ace)
+{
+ int ret;
+ struct ace_cmd cmd;
+ size_t cmd_len;
+
+ cmd_len = construct_command(ace, &cmd, GET_FW_ID);
+
+ ret = mei_cldev_send(ace->cldev, (uint8_t *)&cmd, cmd_len);
+ if (ret < 0)
+ dev_err(&ace->cldev->dev,
+ "send get fw id command fail %d\n", ret);
+
+ return ret;
+}
+
+static int set_camera_ownership(struct mei_ace *ace,
+ enum ace_cmd_id cmd_id,
+ struct camera_status *status)
+{
+ struct ace_cmd cmd;
+ size_t cmd_len;
+ union ace_notif_cont *cont;
+ int ret;
+
+ cmd_len = construct_command(ace, &cmd, cmd_id);
+
+ mutex_lock(&ace->cmd_mutex);
+
+ ret = send_command_sync(ace, &cmd, cmd_len);
+ if (!ret) {
+ cont = &ace->cmd_resp->cont;
+ memcpy(status, &cont->stat, sizeof(*status));
+ }
+
+ mutex_unlock(&ace->cmd_mutex);
+
+ return ret;
+}
+
+int ipu_own_camera(void *ace, struct camera_status *status)
+{
+ struct mei_ace *p_ace = (struct mei_ace *)ace;
+
+ return set_camera_ownership(p_ace, IPU_OWN_CAMERA, status);
+}
+
+int ace_own_camera(void *ace, struct camera_status *status)
+{
+ struct mei_ace *p_ace = (struct mei_ace *)ace;
+
+ return set_camera_ownership(p_ace, ACE_OWN_CAMERA, status);
+}
+
+int get_camera_status(void *ace, struct camera_status *status)
+{
+ int ret;
+ struct ace_cmd cmd;
+ size_t cmd_len;
+ union ace_notif_cont *cont;
+ struct mei_ace *p_ace = (struct mei_ace *)ace;
+
+ cmd_len = construct_command(p_ace, &cmd, GET_CAMERA_STATUS);
+
+ mutex_lock(&p_ace->cmd_mutex);
+
+ ret = send_command_sync(p_ace, &cmd, cmd_len);
+ if (!ret) {
+ cont = &p_ace->cmd_resp->cont;
+ memcpy(status, &cont->stat, sizeof(*status));
+ }
+
+ mutex_unlock(&p_ace->cmd_mutex);
+
+ return ret;
+}
+
+static struct vsc_ace_ops ace_ops = {
+ .ace_own_camera = ace_own_camera,
+ .ipu_own_camera = ipu_own_camera,
+ .get_camera_status = get_camera_status,
+};
+
+static void handle_notify(struct mei_ace *ace, struct ace_notif *resp, int len)
+{
+ union ace_notif_hdr *hdr = &resp->hdr;
+ struct mei_cl_device *cldev = ace->cldev;
+
+ if (hdr->notify.msg_tgt != FW_MSG ||
+ hdr->notify.type != NOTIFICATION) {
+ dev_err(&cldev->dev, "recv incorrect notification\n");
+ return;
+ }
+
+ switch (hdr->notify.notif_type) {
+ /* firmware ready notification sent to driver
+ * after HECI client connected with firmware.
+ */
+ case FW_READY:
+ dev_info(&cldev->dev, "firmware ready\n");
+
+ trigger_get_fw_id(ace);
+ break;
+
+ case MANAGEMENT_NOTIF:
+ if (hdr->management.event_id == CTRL_NOTIF) {
+ switch (hdr->management.request_id) {
+ case GET_FW_ID:
+ dev_warn(&cldev->dev,
+ "shouldn't reach here\n");
+ break;
+
+ case ACE_OWN_CAMERA:
+ case IPU_OWN_CAMERA:
+ case GET_CAMERA_STATUS:
+ memcpy(ace->cmd_resp, resp, len);
+
+ if (!completion_done(&ace->response))
+ complete(&ace->response);
+ break;
+
+ default:
+ dev_err(&cldev->dev,
+ "incorrect command id notif\n");
+ break;
+ }
+ }
+ break;
+
+ case EXCEPTION:
+ dev_err(&cldev->dev, "firmware exception\n");
+ break;
+
+ case WATCHDOG_TIMEOUT:
+ dev_err(&cldev->dev, "firmware watchdog timeout\n");
+ break;
+
+ default:
+ dev_err(&cldev->dev,
+ "recv unknown notification(%d)\n",
+ hdr->notify.notif_type);
+ break;
+ }
+}
+
+ /* callback for command response receive */
+static void mei_ace_rx(struct mei_cl_device *cldev)
+{
+ struct mei_ace *ace = mei_cldev_get_drvdata(cldev);
+ int ret;
+ struct ace_notif resp;
+ union ace_notif_hdr *hdr = &resp.hdr;
+
+ ret = mei_cldev_recv(cldev, (uint8_t *)&resp, sizeof(resp));
+ if (ret < 0) {
+ dev_err(&cldev->dev, "failure in recv %d\n", ret);
+ return;
+ } else if (ret < sizeof(union ace_notif_hdr)) {
+ dev_err(&cldev->dev, "recv small data %d\n", ret);
+ return;
+ }
+
+ switch (hdr->notify.rsp) {
+ case REPLY:
+ if (hdr->response.cmd_id == GET_FW_ID) {
+ ace->module_id = resp.cont.module_id;
+
+ ace->init_wait_q_woken = true;
+ wake_up_all(&ace->init_wait_q);
+
+ dev_info(&cldev->dev, "recv firmware id\n");
+ } else {
+ memcpy(ace->reply_notif, &resp, ret);
+
+ if (!completion_done(&ace->reply))
+ complete(&ace->reply);
+ }
+ break;
+
+ case NOTIF:
+ handle_notify(ace, &resp, ret);
+ break;
+
+ default:
+ dev_err(&cldev->dev,
+ "recv unknown response(%d)\n", hdr->notify.rsp);
+ break;
+ }
+}
+
+static int mei_ace_probe(struct mei_cl_device *cldev,
+ const struct mei_cl_device_id *id)
+{
+ struct mei_ace *ace;
+ int ret;
+ uint8_t *addr;
+ size_t ace_size = sizeof(struct mei_ace);
+ size_t reply_size = sizeof(struct ace_notif);
+ size_t response_size = sizeof(struct ace_notif);
+
+ ace = kzalloc(ace_size + response_size + reply_size, GFP_KERNEL);
+ if (!ace)
+ return -ENOMEM;
+
+ addr = (uint8_t *)ace;
+ ace->cmd_resp = (struct ace_notif *)(addr + ace_size);
+
+ addr = (uint8_t *)ace->cmd_resp;
+ ace->reply_notif = (struct ace_notif *)(addr + response_size);
+
+ ace->cldev = cldev;
+
+ ace->init_wait_q_woken = false;
+ init_waitqueue_head(&ace->init_wait_q);
+
+ mutex_init(&ace->cmd_mutex);
+ init_completion(&ace->response);
+ init_completion(&ace->reply);
+
+ mei_cldev_set_drvdata(cldev, ace);
+
+ ret = mei_cldev_enable(cldev);
+ if (ret < 0) {
+ dev_err(&cldev->dev,
+ "couldn't enable ace client ret=%d\n", ret);
+ goto err_out;
+ }
+
+ ret = mei_cldev_register_rx_cb(cldev, mei_ace_rx);
+ if (ret) {
+ dev_err(&cldev->dev,
+ "couldn't register rx cb ret=%d\n", ret);
+ goto err_disable;
+ }
+
+ trigger_get_fw_id(ace);
+
+ vsc_register_ace(ace, &ace_ops);
+ return 0;
+
+err_disable:
+ mei_cldev_disable(cldev);
+
+err_out:
+ kfree(ace);
+
+ return ret;
+}
+
+static void mei_ace_remove(struct mei_cl_device *cldev)
+{
+ struct mei_ace *ace = mei_cldev_get_drvdata(cldev);
+
+ vsc_unregister_ace();
+
+ if (!completion_done(&ace->response))
+ complete(&ace->response);
+
+ if (!completion_done(&ace->reply))
+ complete(&ace->reply);
+
+ if (wq_has_sleeper(&ace->init_wait_q))
+ wake_up_all(&ace->init_wait_q);
+
+ mei_cldev_disable(cldev);
+
+ /* wait until no buffer access */
+ mutex_lock(&ace->cmd_mutex);
+ mutex_unlock(&ace->cmd_mutex);
+
+ kfree(ace);
+}
+
+#define MEI_UUID_ACE UUID_LE(0x5DB76CF6, 0x0A68, 0x4ED6, \
+ 0x9B, 0x78, 0x03, 0x61, 0x63, 0x5E, 0x24, 0x47)
+
+static const struct mei_cl_device_id mei_ace_tbl[] = {
+ { MEI_ACE_DRIVER_NAME, MEI_UUID_ACE, MEI_CL_VERSION_ANY },
+
+ /* required last entry */
+ { }
+};
+MODULE_DEVICE_TABLE(mei, mei_ace_tbl);
+
+static struct mei_cl_driver mei_ace_driver = {
+ .id_table = mei_ace_tbl,
+ .name = MEI_ACE_DRIVER_NAME,
+
+ .probe = mei_ace_probe,
+ .remove = mei_ace_remove,
+};
+
+static int __init mei_ace_init(void)
+{
+ int ret;
+
+ ret = mei_cldev_driver_register(&mei_ace_driver);
+ if (ret) {
+ pr_err("mei ace driver registration failed: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void __exit mei_ace_exit(void)
+{
+ mei_cldev_driver_unregister(&mei_ace_driver);
+}
+
+module_init(mei_ace_init);
+module_exit(mei_ace_exit);
+
+MODULE_AUTHOR("Intel Corporation");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Device driver for Intel VSC ACE client");
diff --git a/drivers/misc/ivsc/mei_ace_debug.c b/drivers/misc/ivsc/mei_ace_debug.c
new file mode 100644
index 0000000000000..4ae850658ecb1
--- /dev/null
+++ b/drivers/misc/ivsc/mei_ace_debug.c
@@ -0,0 +1,696 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2021 Intel Corporation */
+
+#include <linux/completion.h>
+#include <linux/debugfs.h>
+#include <linux/fs.h>
+#include <linux/gfp.h>
+#include <linux/kernel.h>
+#include <linux/mei_cl_bus.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/timekeeping.h>
+#include <linux/uuid.h>
+
+#define MAX_RECV_SIZE 8192
+#define MAX_LOG_SIZE 0x40000000
+#define LOG_CONFIG_PARAM_COUNT 7
+#define COMMAND_TIMEOUT (5 * HZ)
+#define ACE_LOG_FILE "/var/log/vsc_ace.log"
+#define MEI_ACE_DEBUG_DRIVER_NAME "vsc_ace_debug"
+
+enum notif_rsp {
+ NOTIF = 0,
+ REPLY = 1,
+};
+
+enum message_source {
+ FW_MSG = 0,
+ DRV_MSG = 1,
+};
+
+enum notify_type {
+ LOG_BUFFER_STATUS = 6,
+ FW_READY = 8,
+ MANAGEMENT_NOTIF = 16,
+ NOTIFICATION = 27,
+};
+
+enum notify_event_type {
+ STATE_NOTIF = 1,
+ CTRL_NOTIF = 2,
+};
+
+enum ace_cmd_id {
+ GET_FW_VER = 0,
+ LOG_CONFIG = 6,
+ SET_SYS_TIME = 20,
+ GET_FW_ID = 26,
+};
+
+enum ace_cmd_type {
+ ACE_CMD_GET = 3,
+ ACE_CMD_SET = 4,
+};
+
+struct firmware_version {
+ uint32_t type;
+ uint32_t len;
+
+ uint16_t major;
+ uint16_t minor;
+ uint16_t hotfix;
+ uint16_t build;
+} __packed;
+
+union tracing_config {
+ struct _uart_config {
+ uint32_t instance;
+ uint32_t baudrate;
+ } __packed uart;
+
+ struct _i2c_config {
+ uint32_t instance;
+ uint32_t speed;
+ uint32_t address;
+ uint32_t reg;
+ } __packed i2c;
+};
+
+struct log_config {
+ uint32_t aging_period;
+ uint32_t fifo_period;
+ uint32_t enable;
+ uint32_t priority_mask[16];
+ uint32_t tracing_method;
+ uint32_t tracing_format;
+ union tracing_config config;
+} __packed;
+
+struct ace_cmd_hdr {
+ uint32_t module_id : 16;
+ uint32_t instance_id : 8;
+ uint32_t type : 5;
+ uint32_t rsp : 1;
+ uint32_t msg_tgt : 1;
+ uint32_t _hw_rsvd_0 : 1;
+
+ uint32_t param_size : 20;
+ uint32_t cmd_id : 8;
+ uint32_t final_block : 1;
+ uint32_t init_block : 1;
+ uint32_t _hw_rsvd_2 : 2;
+} __packed;
+
+union ace_cmd_param {
+ uuid_le uuid;
+ uint64_t time;
+ struct log_config config;
+};
+
+struct ace_cmd {
+ struct ace_cmd_hdr hdr;
+ union ace_cmd_param param;
+} __packed;
+
+union ace_notif_hdr {
+ struct _response {
+ uint32_t status : 24;
+ uint32_t type : 5;
+ uint32_t rsp : 1;
+ uint32_t msg_tgt : 1;
+ uint32_t _hw_rsvd_0 : 1;
+
+ uint32_t param_size : 20;
+ uint32_t cmd_id : 8;
+ uint32_t final_block : 1;
+ uint32_t init_block : 1;
+
+ uint32_t _hw_rsvd_2 : 2;
+ } __packed response;
+
+ struct _notify {
+ uint32_t rsvd2 : 16;
+ uint32_t notif_type : 8;
+ uint32_t type : 5;
+ uint32_t rsp : 1;
+ uint32_t msg_tgt : 1;
+ uint32_t _hw_rsvd_0 : 1;
+
+ uint32_t rsvd1 : 30;
+ uint32_t _hw_rsvd_2 : 2;
+ } __packed notify;
+
+ struct _log_notify {
+ uint32_t rsvd0 : 12;
+ uint32_t source_core : 4;
+ uint32_t notif_type : 8;
+ uint32_t type : 5;
+ uint32_t rsp : 1;
+ uint32_t msg_tgt : 1;
+ uint32_t _hw_rsvd_0 : 1;
+
+ uint32_t rsvd1 : 30;
+ uint32_t _hw_rsvd_2 : 2;
+ } __packed log_notify;
+
+ struct _management {
+ uint32_t event_id : 16;
+ uint32_t notif_type : 8;
+ uint32_t type : 5;
+ uint32_t rsp : 1;
+ uint32_t msg_tgt : 1;
+ uint32_t _hw_rsvd_0 : 1;
+
+ uint32_t event_data_size : 16;
+ uint32_t request_target : 1;
+ uint32_t request_type : 5;
+ uint32_t request_id : 8;
+ uint32_t _hw_rsvd_2 : 2;
+ } __packed management;
+};
+
+union ace_notif_cont {
+ uint16_t module_id;
+ struct firmware_version version;
+};
+
+struct ace_notif {
+ union ace_notif_hdr hdr;
+ union ace_notif_cont cont;
+} __packed;
+
+struct mei_ace_debug {
+ struct mei_cl_device *cldev;
+
+ struct mutex cmd_mutex;
+ struct ace_notif cmd_resp;
+ struct completion response;
+
+ struct completion reply;
+ struct ace_notif reply_notif;
+
+ loff_t pos;
+ struct file *ace_file;
+
+ uint8_t *recv_buf;
+
+ struct dentry *dfs_dir;
+};
+
+static inline void init_cmd_hdr(struct ace_cmd_hdr *hdr)
+{
+ memset(hdr, 0, sizeof(struct ace_cmd_hdr));
+
+ hdr->type = ACE_CMD_SET;
+ hdr->msg_tgt = DRV_MSG;
+ hdr->init_block = 1;
+ hdr->final_block = 1;
+}
+
+static int construct_command(struct mei_ace_debug *ad,
+ struct ace_cmd *cmd,
+ enum ace_cmd_id cmd_id,
+ void *user_data)
+{
+ struct ace_cmd_hdr *hdr = &cmd->hdr;
+ union ace_cmd_param *param = &cmd->param;
+
+ init_cmd_hdr(hdr);
+
+ hdr->cmd_id = cmd_id;
+ switch (cmd_id) {
+ case GET_FW_VER:
+ hdr->type = ACE_CMD_GET;
+ break;
+ case SET_SYS_TIME:
+ param->time = ktime_get_ns();
+ hdr->param_size = sizeof(param->time);
+ break;
+ case GET_FW_ID:
+ memcpy(¶m->uuid, user_data, sizeof(param->uuid));
+ hdr->param_size = sizeof(param->uuid);
+ break;
+ case LOG_CONFIG:
+ memcpy(¶m->config, user_data, sizeof(param->config));
+ hdr->param_size = sizeof(param->config);
+ break;
+ default:
+ dev_err(&ad->cldev->dev,
+ "sending not supported command");
+ break;
+ }
+
+ return hdr->param_size + sizeof(cmd->hdr);
+}
+
+static int send_command_sync(struct mei_ace_debug *ad,
+ struct ace_cmd *cmd, size_t len)
+{
+ int ret;
+ struct ace_cmd_hdr *cmd_hdr = &cmd->hdr;
+ union ace_notif_hdr *reply_hdr = &ad->reply_notif.hdr;
+
+ reinit_completion(&ad->reply);
+
+ ret = mei_cldev_send(ad->cldev, (uint8_t *)cmd, len);
+ if (ret < 0) {
+ dev_err(&ad->cldev->dev,
+ "send command fail %d\n", ret);
+ return ret;
+ }
+
+ ret = wait_for_completion_killable_timeout(&ad->reply, COMMAND_TIMEOUT);
+ if (ret < 0) {
+ dev_err(&ad->cldev->dev,
+ "command %d notify reply error\n", cmd_hdr->cmd_id);
+ return ret;
+ } else if (ret == 0) {
+ dev_err(&ad->cldev->dev,
+ "command %d notify reply timeout\n", cmd_hdr->cmd_id);
+ ret = -ETIMEDOUT;
+ return ret;
+ }
+
+ if (reply_hdr->response.cmd_id != cmd_hdr->cmd_id) {
+ dev_err(&ad->cldev->dev,
+ "reply notify mismatch, sent %d but got %d\n",
+ cmd_hdr->cmd_id, reply_hdr->response.cmd_id);
+ return -1;
+ }
+
+ ret = reply_hdr->response.status;
+ if (ret) {
+ dev_err(&ad->cldev->dev,
+ "command %d reply wrong status = %d\n",
+ cmd_hdr->cmd_id, ret);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int set_system_time(struct mei_ace_debug *ad)
+{
+ struct ace_cmd cmd;
+ size_t cmd_len;
+ int ret;
+
+ cmd_len = construct_command(ad, &cmd, SET_SYS_TIME, NULL);
+
+ mutex_lock(&ad->cmd_mutex);
+ ret = send_command_sync(ad, &cmd, cmd_len);
+ mutex_unlock(&ad->cmd_mutex);
+
+ return ret;
+}
+
+static ssize_t ad_time_write(struct file *file,
+ const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct mei_ace_debug *ad = file->private_data;
+ int ret;
+
+ ret = set_system_time(ad);
+ if (ret)
+ return ret;
+
+ return count;
+}
+
+static int config_log(struct mei_ace_debug *ad, struct log_config *config)
+{
+ struct ace_cmd cmd;
+ size_t cmd_len;
+ int ret;
+
+ cmd_len = construct_command(ad, &cmd, LOG_CONFIG, config);
+
+ mutex_lock(&ad->cmd_mutex);
+ ret = send_command_sync(ad, &cmd, cmd_len);
+ mutex_unlock(&ad->cmd_mutex);
+
+ return ret;
+}
+
+static ssize_t ad_log_config_write(struct file *file,
+ const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct mei_ace_debug *ad = file->private_data;
+ int ret;
+ uint8_t *buf;
+ struct log_config config = {0};
+
+ buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
+ if (IS_ERR(buf))
+ return PTR_ERR(buf);
+
+ ret = sscanf(buf, "%u %u %u %u %u %u %u",
+ &config.aging_period,
+ &config.fifo_period,
+ &config.enable,
+ &config.priority_mask[0],
+ &config.priority_mask[1],
+ &config.tracing_format,
+ &config.tracing_method);
+ if (ret != LOG_CONFIG_PARAM_COUNT) {
+ dev_err(&ad->cldev->dev,
+ "please input all the required parameters\n");
+ return -EINVAL;
+ }
+
+ ret = config_log(ad, &config);
+ if (ret)
+ return ret;
+
+ return count;
+}
+
+static int get_firmware_version(struct mei_ace_debug *ad,
+ struct firmware_version *version)
+{
+ struct ace_cmd cmd;
+ size_t cmd_len;
+ union ace_notif_cont *cont;
+ int ret;
+
+ cmd_len = construct_command(ad, &cmd, GET_FW_VER, NULL);
+
+ mutex_lock(&ad->cmd_mutex);
+ ret = send_command_sync(ad, &cmd, cmd_len);
+ if (!ret) {
+ cont = &ad->reply_notif.cont;
+ memcpy(version, &cont->version, sizeof(*version));
+ }
+ mutex_unlock(&ad->cmd_mutex);
+
+ return ret;
+}
+
+static ssize_t ad_firmware_version_read(struct file *file,
+ char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct mei_ace_debug *ad = file->private_data;
+ int ret, pos;
+ struct firmware_version version;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+
+ if (!addr)
+ return -ENOMEM;
+
+ ret = get_firmware_version(ad, &version);
+ if (ret)
+ goto out;
+
+ pos = snprintf((char *)addr, PAGE_SIZE,
+ "firmware version: %u.%u.%u.%u\n",
+ version.major, version.minor,
+ version.hotfix, version.build);
+
+ ret = simple_read_from_buffer(buf, count, ppos, (char *)addr, pos);
+
+out:
+ free_page(addr);
+ return ret;
+}
+
+#define AD_DFS_ADD_FILE(name) \
+ debugfs_create_file(#name, 0644, ad->dfs_dir, ad, \
+ &ad_dfs_##name##_fops)
+
+#define AD_DFS_FILE_OPS(name) \
+static const struct file_operations ad_dfs_##name##_fops = { \
+ .read = ad_##name##_read, \
+ .write = ad_##name##_write, \
+ .open = simple_open, \
+}
+
+#define AD_DFS_FILE_READ_OPS(name) \
+static const struct file_operations ad_dfs_##name##_fops = { \
+ .read = ad_##name##_read, \
+ .open = simple_open, \
+}
+
+#define AD_DFS_FILE_WRITE_OPS(name) \
+static const struct file_operations ad_dfs_##name##_fops = { \
+ .write = ad_##name##_write, \
+ .open = simple_open, \
+}
+
+AD_DFS_FILE_WRITE_OPS(time);
+AD_DFS_FILE_WRITE_OPS(log_config);
+
+AD_DFS_FILE_READ_OPS(firmware_version);
+
+static void handle_notify(struct mei_ace_debug *ad,
+ struct ace_notif *notif, int len)
+{
+ int ret;
+ struct file *file;
+ loff_t *pos;
+ union ace_notif_hdr *hdr = ¬if->hdr;
+ struct mei_cl_device *cldev = ad->cldev;
+
+ if (hdr->notify.msg_tgt != FW_MSG ||
+ hdr->notify.type != NOTIFICATION) {
+ dev_err(&cldev->dev, "recv wrong notification\n");
+ return;
+ }
+
+ switch (hdr->notify.notif_type) {
+ case FW_READY:
+ /* firmware ready notification sent to driver
+ * after HECI client connected with firmware.
+ */
+ dev_info(&cldev->dev, "firmware ready\n");
+ break;
+
+ case LOG_BUFFER_STATUS:
+ if (ad->pos < MAX_LOG_SIZE) {
+ pos = &ad->pos;
+ file = ad->ace_file;
+
+ ret = kernel_write(file,
+ (uint8_t *)notif + sizeof(*hdr),
+ len - sizeof(*hdr),
+ pos);
+ if (ret < 0)
+ dev_err(&cldev->dev,
+ "error in writing log %d\n", ret);
+ else
+ *pos += ret;
+ } else
+ dev_warn(&cldev->dev,
+ "already exceed max log size\n");
+ break;
+
+ case MANAGEMENT_NOTIF:
+ if (hdr->management.event_id == CTRL_NOTIF) {
+ switch (hdr->management.request_id) {
+ case GET_FW_VER:
+ case LOG_CONFIG:
+ case SET_SYS_TIME:
+ case GET_FW_ID:
+ memcpy(&ad->cmd_resp, notif, len);
+
+ if (!completion_done(&ad->response))
+ complete(&ad->response);
+ break;
+
+ default:
+ dev_err(&cldev->dev,
+ "wrong command id(%d) notif\n",
+ hdr->management.request_id);
+ break;
+ }
+ }
+ break;
+
+ default:
+ dev_info(&cldev->dev,
+ "unexpected notify(%d)\n", hdr->notify.notif_type);
+ break;
+ }
+}
+
+/* callback for command response receive */
+static void mei_ace_debug_rx(struct mei_cl_device *cldev)
+{
+ struct mei_ace_debug *ad = mei_cldev_get_drvdata(cldev);
+ int ret;
+ struct ace_notif *notif;
+ union ace_notif_hdr *hdr;
+
+ ret = mei_cldev_recv(cldev, ad->recv_buf, MAX_RECV_SIZE);
+ if (ret < 0) {
+ dev_err(&cldev->dev, "failure in recv %d\n", ret);
+ return;
+ } else if (ret < sizeof(union ace_notif_hdr)) {
+ dev_err(&cldev->dev, "recv small data %d\n", ret);
+ return;
+ }
+ notif = (struct ace_notif *)ad->recv_buf;
+ hdr = ¬if->hdr;
+
+ switch (hdr->notify.rsp) {
+ case REPLY:
+ memcpy(&ad->reply_notif, notif, sizeof(struct ace_notif));
+
+ if (!completion_done(&ad->reply))
+ complete(&ad->reply);
+ break;
+
+ case NOTIF:
+ handle_notify(ad, notif, ret);
+ break;
+
+ default:
+ dev_err(&cldev->dev,
+ "unexpected response(%d)\n", hdr->notify.rsp);
+ break;
+ }
+}
+
+static int mei_ace_debug_probe(struct mei_cl_device *cldev,
+ const struct mei_cl_device_id *id)
+{
+ struct mei_ace_debug *ad;
+ int ret;
+ uint32_t order = get_order(MAX_RECV_SIZE);
+
+ ad = kzalloc(sizeof(struct mei_ace_debug), GFP_KERNEL);
+ if (!ad)
+ return -ENOMEM;
+
+ ad->recv_buf = (uint8_t *)__get_free_pages(GFP_KERNEL, order);
+ if (!ad->recv_buf) {
+ kfree(ad);
+ return -ENOMEM;
+ }
+
+ ad->cldev = cldev;
+
+ mutex_init(&ad->cmd_mutex);
+ init_completion(&ad->response);
+ init_completion(&ad->reply);
+
+ mei_cldev_set_drvdata(cldev, ad);
+
+ ret = mei_cldev_enable(cldev);
+ if (ret < 0) {
+ dev_err(&cldev->dev,
+ "couldn't enable ace debug client ret=%d\n", ret);
+ goto err_out;
+ }
+
+ ret = mei_cldev_register_rx_cb(cldev, mei_ace_debug_rx);
+ if (ret) {
+ dev_err(&cldev->dev,
+ "couldn't register ace debug rx cb ret=%d\n", ret);
+ goto err_disable;
+ }
+
+ ad->ace_file = filp_open(ACE_LOG_FILE,
+ O_CREAT | O_RDWR | O_LARGEFILE | O_TRUNC,
+ 0600);
+ if (IS_ERR(ad->ace_file)) {
+ dev_err(&cldev->dev,
+ "filp_open(%s) failed\n", ACE_LOG_FILE);
+ ret = PTR_ERR(ad->ace_file);
+ goto err_disable;
+ }
+ ad->pos = 0;
+
+ ad->dfs_dir = debugfs_create_dir("vsc_ace", NULL);
+ if (ad->dfs_dir) {
+ AD_DFS_ADD_FILE(log_config);
+ AD_DFS_ADD_FILE(time);
+ AD_DFS_ADD_FILE(firmware_version);
+ }
+
+ return 0;
+
+err_disable:
+ mei_cldev_disable(cldev);
+
+err_out:
+ free_pages((unsigned long)ad->recv_buf, order);
+
+ kfree(ad);
+
+ return ret;
+}
+
+static void mei_ace_debug_remove(struct mei_cl_device *cldev)
+{
+ uint32_t order = get_order(MAX_RECV_SIZE);
+ struct mei_ace_debug *ad = mei_cldev_get_drvdata(cldev);
+
+ if (!completion_done(&ad->response))
+ complete(&ad->response);
+
+ if (!completion_done(&ad->reply))
+ complete(&ad->reply);
+
+ mei_cldev_disable(cldev);
+
+ debugfs_remove_recursive(ad->dfs_dir);
+
+ filp_close(ad->ace_file, NULL);
+
+ /* wait until no buffer access */
+ mutex_lock(&ad->cmd_mutex);
+ mutex_unlock(&ad->cmd_mutex);
+
+ free_pages((unsigned long)ad->recv_buf, order);
+
+ kfree(ad);
+}
+
+#define MEI_UUID_ACE_DEBUG UUID_LE(0xFB285857, 0xFC24, 0x4BF3, 0xBD, \
+ 0x80, 0x2A, 0xBC, 0x44, 0xE3, 0xC2, 0x0B)
+
+static const struct mei_cl_device_id mei_ace_debug_tbl[] = {
+ { MEI_ACE_DEBUG_DRIVER_NAME, MEI_UUID_ACE_DEBUG, MEI_CL_VERSION_ANY },
+
+ /* required last entry */
+ { }
+};
+MODULE_DEVICE_TABLE(mei, mei_ace_debug_tbl);
+
+static struct mei_cl_driver mei_ace_debug_driver = {
+ .id_table = mei_ace_debug_tbl,
+ .name = MEI_ACE_DEBUG_DRIVER_NAME,
+
+ .probe = mei_ace_debug_probe,
+ .remove = mei_ace_debug_remove,
+};
+
+static int __init mei_ace_debug_init(void)
+{
+ int ret;
+
+ ret = mei_cldev_driver_register(&mei_ace_debug_driver);
+ if (ret) {
+ pr_err("mei ace debug driver registration failed: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void __exit mei_ace_debug_exit(void)
+{
+ mei_cldev_driver_unregister(&mei_ace_debug_driver);
+}
+
+module_init(mei_ace_debug_init);
+module_exit(mei_ace_debug_exit);
+
+MODULE_AUTHOR("Intel Corporation");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Device driver for Intel VSC ACE debug client");
diff --git a/drivers/misc/ivsc/mei_csi.c b/drivers/misc/ivsc/mei_csi.c
new file mode 100644
index 0000000000000..ebac873c36eb7
--- /dev/null
+++ b/drivers/misc/ivsc/mei_csi.c
@@ -0,0 +1,456 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2021 Intel Corporation */
+
+#include <linux/completion.h>
+#include <linux/kernel.h>
+#include <linux/mei_cl_bus.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/uuid.h>
+#include <linux/vsc.h>
+
+#include "intel_vsc.h"
+
+#define CSI_TIMEOUT (5 * HZ)
+#define MEI_CSI_DRIVER_NAME "vsc_csi"
+
+/**
+ * Identify the command id that can be downloaded
+ * to firmware, as well as the privacy notify id
+ * used when processing privacy actions.
+ *
+ * This enumeration is local to the mei csi.
+ */
+enum csi_cmd_id {
+ /* used to set csi ownership */
+ CSI_SET_OWNER,
+
+ /* used to get csi ownership */
+ CSI_GET_OWNER,
+
+ /* used to configurate mipi */
+ CSI_SET_MIPI_CONF,
+
+ /* used to get current mipi configuration */
+ CSI_GET_MIPI_CONF,
+
+ /* used to set csi power state */
+ CSI_SET_POWER_STATE,
+
+ /* used to get csi power state */
+ CSI_GET_POWER_STATE,
+
+ /* privacy notification id used when privacy state changes */
+ CSI_PRIVACY_NOTIF,
+};
+
+enum privacy_state {
+ PRIVACY_OFF = 0,
+ PRIVACY_ON,
+};
+
+/**
+ * CSI command structure.
+ */
+struct csi_cmd {
+ uint32_t cmd_id;
+ union _cmd_param {
+ uint32_t param;
+ struct mipi_conf conf;
+ } param;
+} __packed;
+
+/**
+ * CSI command response structure.
+ */
+struct csi_notif {
+ uint32_t cmd_id;
+ int status;
+ union _resp_cont {
+ uint32_t cont;
+ struct mipi_conf conf;
+ } cont;
+} __packed;
+
+struct mei_csi {
+ struct mei_cl_device *cldev;
+
+ struct mutex cmd_mutex;
+ struct csi_notif *notif;
+ struct completion response;
+
+ spinlock_t privacy_lock;
+ void *handle;
+ vsc_privacy_callback_t callback;
+};
+
+static int mei_csi_send(struct mei_csi *csi, uint8_t *buf, size_t len)
+{
+ struct csi_cmd *cmd = (struct csi_cmd *)buf;
+ int ret;
+
+ reinit_completion(&csi->response);
+
+ ret = mei_cldev_send(csi->cldev, buf, len);
+ if (ret < 0) {
+ dev_err(&csi->cldev->dev,
+ "send command fail %d\n", ret);
+ return ret;
+ }
+
+ ret = wait_for_completion_killable_timeout(&csi->response, CSI_TIMEOUT);
+ if (ret < 0) {
+ dev_err(&csi->cldev->dev,
+ "command %d response error\n", cmd->cmd_id);
+ return ret;
+ } else if (ret == 0) {
+ dev_err(&csi->cldev->dev,
+ "command %d response timeout\n", cmd->cmd_id);
+ ret = -ETIMEDOUT;
+ return ret;
+ }
+
+ ret = csi->notif->status;
+ if (ret == -1) {
+ dev_info(&csi->cldev->dev,
+ "privacy on, command id = %d\n", cmd->cmd_id);
+ ret = 0;
+ } else if (ret) {
+ dev_err(&csi->cldev->dev,
+ "command %d response fail %d\n", cmd->cmd_id, ret);
+ return ret;
+ }
+
+ if (csi->notif->cmd_id != cmd->cmd_id) {
+ dev_err(&csi->cldev->dev,
+ "command response id mismatch, sent %d but got %d\n",
+ cmd->cmd_id, csi->notif->cmd_id);
+ ret = -1;
+ }
+
+ return ret;
+}
+
+static int csi_set_owner(void *csi, enum csi_owner owner)
+{
+ struct csi_cmd cmd;
+ size_t cmd_len = sizeof(cmd.cmd_id);
+ int ret;
+ struct mei_csi *p_csi = (struct mei_csi *)csi;
+
+ cmd.cmd_id = CSI_SET_OWNER;
+ cmd.param.param = owner;
+ cmd_len += sizeof(cmd.param.param);
+
+ mutex_lock(&p_csi->cmd_mutex);
+ ret = mei_csi_send(p_csi, (uint8_t *)&cmd, cmd_len);
+ mutex_unlock(&p_csi->cmd_mutex);
+
+ return ret;
+}
+
+static int csi_get_owner(void *csi, enum csi_owner *owner)
+{
+ struct csi_cmd cmd;
+ size_t cmd_len = sizeof(cmd.cmd_id);
+ int ret;
+ struct mei_csi *p_csi = (struct mei_csi *)csi;
+
+ cmd.cmd_id = CSI_GET_OWNER;
+
+ mutex_lock(&p_csi->cmd_mutex);
+ ret = mei_csi_send(p_csi, (uint8_t *)&cmd, cmd_len);
+ if (!ret)
+ *owner = p_csi->notif->cont.cont;
+ mutex_unlock(&p_csi->cmd_mutex);
+
+ return ret;
+}
+
+static int csi_set_mipi_conf(void *csi, struct mipi_conf *conf)
+{
+ struct csi_cmd cmd;
+ size_t cmd_len = sizeof(cmd.cmd_id);
+ int ret;
+ struct mei_csi *p_csi = (struct mei_csi *)csi;
+
+ cmd.cmd_id = CSI_SET_MIPI_CONF;
+ cmd.param.conf.freq = conf->freq;
+ cmd.param.conf.lane_num = conf->lane_num;
+ cmd_len += sizeof(cmd.param.conf);
+
+ mutex_lock(&p_csi->cmd_mutex);
+ ret = mei_csi_send(p_csi, (uint8_t *)&cmd, cmd_len);
+ mutex_unlock(&p_csi->cmd_mutex);
+
+ return ret;
+}
+
+static int csi_get_mipi_conf(void *csi, struct mipi_conf *conf)
+{
+ struct csi_cmd cmd;
+ size_t cmd_len = sizeof(cmd.cmd_id);
+ struct mipi_conf *res;
+ int ret;
+ struct mei_csi *p_csi = (struct mei_csi *)csi;
+
+ cmd.cmd_id = CSI_GET_MIPI_CONF;
+
+ mutex_lock(&p_csi->cmd_mutex);
+ ret = mei_csi_send(p_csi, (uint8_t *)&cmd, cmd_len);
+ if (!ret) {
+ res = &p_csi->notif->cont.conf;
+ conf->freq = res->freq;
+ conf->lane_num = res->lane_num;
+ }
+ mutex_unlock(&p_csi->cmd_mutex);
+
+ return ret;
+}
+
+static int csi_set_power_state(void *csi, enum csi_power_state state)
+{
+ struct csi_cmd cmd;
+ size_t cmd_len = sizeof(cmd.cmd_id);
+ int ret;
+ struct mei_csi *p_csi = (struct mei_csi *)csi;
+
+ cmd.cmd_id = CSI_SET_POWER_STATE;
+ cmd.param.param = state;
+ cmd_len += sizeof(cmd.param.param);
+
+ mutex_lock(&p_csi->cmd_mutex);
+ ret = mei_csi_send(p_csi, (uint8_t *)&cmd, cmd_len);
+ mutex_unlock(&p_csi->cmd_mutex);
+
+ return ret;
+}
+
+static int csi_get_power_state(void *csi, enum csi_power_state *state)
+{
+ struct csi_cmd cmd;
+ size_t cmd_len = sizeof(cmd.cmd_id);
+ int ret;
+ struct mei_csi *p_csi = (struct mei_csi *)csi;
+
+ cmd.cmd_id = CSI_GET_POWER_STATE;
+
+ mutex_lock(&p_csi->cmd_mutex);
+ ret = mei_csi_send(p_csi, (uint8_t *)&cmd, cmd_len);
+ if (!ret)
+ *state = p_csi->notif->cont.cont;
+ mutex_unlock(&p_csi->cmd_mutex);
+
+ return ret;
+}
+
+static void csi_set_privacy_callback(void *csi,
+ vsc_privacy_callback_t callback,
+ void *handle)
+{
+ unsigned long flags;
+ struct mei_csi *p_csi = (struct mei_csi *)csi;
+
+ spin_lock_irqsave(&p_csi->privacy_lock, flags);
+ p_csi->callback = callback;
+ p_csi->handle = handle;
+ spin_unlock_irqrestore(&p_csi->privacy_lock, flags);
+}
+
+static struct vsc_csi_ops csi_ops = {
+ .set_owner = csi_set_owner,
+ .get_owner = csi_get_owner,
+ .set_mipi_conf = csi_set_mipi_conf,
+ .get_mipi_conf = csi_get_mipi_conf,
+ .set_power_state = csi_set_power_state,
+ .get_power_state = csi_get_power_state,
+ .set_privacy_callback = csi_set_privacy_callback,
+};
+
+static void privacy_notify(struct mei_csi *csi, uint8_t state)
+{
+ unsigned long flags;
+ void *handle;
+ vsc_privacy_callback_t callback;
+
+ spin_lock_irqsave(&csi->privacy_lock, flags);
+ callback = csi->callback;
+ handle = csi->handle;
+ spin_unlock_irqrestore(&csi->privacy_lock, flags);
+
+ if (callback)
+ callback(handle, state);
+}
+
+/**
+ * callback for command response receive
+ */
+static void mei_csi_rx(struct mei_cl_device *cldev)
+{
+ int ret;
+ struct csi_notif notif = {0};
+ struct mei_csi *csi = mei_cldev_get_drvdata(cldev);
+
+ ret = mei_cldev_recv(cldev, (uint8_t *)¬if,
+ sizeof(struct csi_notif));
+ if (ret < 0) {
+ dev_err(&cldev->dev, "failure in recv %d\n", ret);
+ return;
+ }
+
+ switch (notif.cmd_id) {
+ case CSI_PRIVACY_NOTIF:
+ switch (notif.cont.cont) {
+ case PRIVACY_ON:
+ privacy_notify(csi, 0);
+
+ dev_info(&cldev->dev, "privacy on\n");
+ break;
+
+ case PRIVACY_OFF:
+ privacy_notify(csi, 1);
+
+ dev_info(&cldev->dev, "privacy off\n");
+ break;
+
+ default:
+ dev_err(&cldev->dev,
+ "recv privacy wrong state\n");
+ break;
+ }
+ break;
+
+ case CSI_SET_OWNER:
+ case CSI_GET_OWNER:
+ case CSI_SET_MIPI_CONF:
+ case CSI_GET_MIPI_CONF:
+ case CSI_SET_POWER_STATE:
+ case CSI_GET_POWER_STATE:
+ memcpy(csi->notif, ¬if, ret);
+
+ if (!completion_done(&csi->response))
+ complete(&csi->response);
+ break;
+
+ default:
+ dev_err(&cldev->dev,
+ "recv not supported notification(%d)\n",
+ notif.cmd_id);
+ break;
+ }
+}
+
+static int mei_csi_probe(struct mei_cl_device *cldev,
+ const struct mei_cl_device_id *id)
+{
+ struct mei_csi *csi;
+ int ret;
+ uint8_t *p;
+ size_t csi_size = sizeof(struct mei_csi);
+
+ p = kzalloc(csi_size + sizeof(struct csi_notif), GFP_KERNEL);
+ if (!p)
+ return -ENOMEM;
+
+ csi = (struct mei_csi *)p;
+ csi->notif = (struct csi_notif *)(p + csi_size);
+
+ csi->cldev = cldev;
+
+ mutex_init(&csi->cmd_mutex);
+ init_completion(&csi->response);
+
+ spin_lock_init(&csi->privacy_lock);
+
+ mei_cldev_set_drvdata(cldev, csi);
+
+ ret = mei_cldev_enable(cldev);
+ if (ret < 0) {
+ dev_err(&cldev->dev,
+ "couldn't enable csi client ret=%d\n", ret);
+ goto err_out;
+ }
+
+ ret = mei_cldev_register_rx_cb(cldev, mei_csi_rx);
+ if (ret) {
+ dev_err(&cldev->dev,
+ "couldn't register rx event ret=%d\n", ret);
+ goto err_disable;
+ }
+
+ vsc_register_csi(csi, &csi_ops);
+
+ return 0;
+
+err_disable:
+ mei_cldev_disable(cldev);
+
+err_out:
+ kfree(csi);
+
+ return ret;
+}
+
+static void mei_csi_remove(struct mei_cl_device *cldev)
+{
+ struct mei_csi *csi = mei_cldev_get_drvdata(cldev);
+
+ vsc_unregister_csi();
+
+ if (!completion_done(&csi->response))
+ complete(&csi->response);
+
+ mei_cldev_disable(cldev);
+
+ /* wait until no buffer access */
+ mutex_lock(&csi->cmd_mutex);
+ mutex_unlock(&csi->cmd_mutex);
+
+ kfree(csi);
+}
+
+#define MEI_UUID_CSI UUID_LE(0x92335FCF, 0x3203, 0x4472, \
+ 0xAF, 0x93, 0x7b, 0x44, 0x53, 0xAC, 0x29, 0xDA)
+
+static const struct mei_cl_device_id mei_csi_tbl[] = {
+ { MEI_CSI_DRIVER_NAME, MEI_UUID_CSI, MEI_CL_VERSION_ANY },
+
+ /* required last entry */
+ { }
+};
+MODULE_DEVICE_TABLE(mei, mei_csi_tbl);
+
+static struct mei_cl_driver mei_csi_driver = {
+ .id_table = mei_csi_tbl,
+ .name = MEI_CSI_DRIVER_NAME,
+
+ .probe = mei_csi_probe,
+ .remove = mei_csi_remove,
+};
+
+static int __init mei_csi_init(void)
+{
+ int ret;
+
+ ret = mei_cldev_driver_register(&mei_csi_driver);
+ if (ret) {
+ pr_err("mei csi driver registration failed: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void __exit mei_csi_exit(void)
+{
+ mei_cldev_driver_unregister(&mei_csi_driver);
+}
+
+module_init(mei_csi_init);
+module_exit(mei_csi_exit);
+
+MODULE_AUTHOR("Intel Corporation");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Device driver for Intel VSC CSI client");
diff --git a/drivers/misc/ivsc/mei_pse.c b/drivers/misc/ivsc/mei_pse.c
new file mode 100644
index 0000000000000..fc9049515d78b
--- /dev/null
+++ b/drivers/misc/ivsc/mei_pse.c
@@ -0,0 +1,944 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2021 Intel Corporation */
+
+#include <linux/completion.h>
+#include <linux/debugfs.h>
+#include <linux/fs.h>
+#include <linux/gfp.h>
+#include <linux/kernel.h>
+#include <linux/mei_cl_bus.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/timekeeping.h>
+#include <linux/uuid.h>
+
+#define MEI_PSE_DRIVER_NAME "vsc_pse"
+
+#define PSE_TIMEOUT (5 * HZ)
+
+#define CONT_OFFSET offsetof(struct pse_notif, cont)
+#define NOTIF_HEADER_LEN 8
+
+#define MAX_RECV_SIZE 8192
+#define MAX_LOG_SIZE 0x40000000
+#define EM_LOG_FILE "/var/log/vsc_em.log"
+#define SEM_LOG_FILE "/var/log/vsc_sem.log"
+
+#define PM_SUBSYS_MAX 2
+#define PM_STATE_NAME_LEN 16
+#define DEV_NUM 64
+#define DEV_NAME_LEN 32
+
+#define FORMAT "|%16.32s |%12u "
+#define FORMAT_TAIL "|\n"
+#define CONSTRUCTED_FORMAT (FORMAT FORMAT FORMAT FORMAT FORMAT_TAIL)
+#define TITLE "| Device Name | Block Count "
+#define TITLE_TAIL "|"
+#define CONSTRUCTED_TITLE (TITLE TITLE TITLE TITLE TITLE_TAIL)
+
+enum pse_cmd_id {
+ LOG_ONOFF = 0,
+ SET_WATERMARK = 1,
+ DUMP_TRACE = 2,
+ SET_TIMEOUT = 3,
+ SET_LOG_LEVEL = 4,
+ SET_TIME = 5,
+ GET_TIME = 6,
+ DUMP_POWER_DATA = 7,
+ TRACE_DATA_NOTIF = 8,
+ GET_FW_VER = 10,
+};
+
+enum pm_state {
+ ACTIVE = 0,
+ CORE_HALT,
+ CORE_CLK_GATE,
+ DEEP_SLEEP,
+ STATE_MAX,
+};
+
+struct fw_version {
+ uint32_t major;
+ uint32_t minor;
+ uint32_t hotfix;
+ uint32_t build;
+} __packed;
+
+struct dev_info {
+ char name[DEV_NAME_LEN];
+ uint32_t block_cnt;
+} __packed;
+
+struct dev_list {
+ struct dev_info dev[DEV_NUM];
+ uint32_t dev_cnt;
+} __packed;
+
+struct pm_status {
+ char name[PM_STATE_NAME_LEN];
+ uint64_t start;
+ uint64_t end;
+ uint64_t duration;
+ uint64_t count;
+} __packed;
+
+struct pm_subsys {
+ uint64_t total;
+ struct pm_status status[STATE_MAX];
+ struct dev_list dev;
+ uint16_t crc;
+} __packed;
+
+struct pm_data {
+ struct pm_subsys subsys[PM_SUBSYS_MAX];
+} __packed;
+
+struct pse_cmd {
+ uint32_t cmd_id;
+ union _cmd_param {
+ uint32_t param;
+ uint64_t time;
+ } param;
+} __packed;
+
+struct pse_notif {
+ uint32_t cmd_id;
+ int8_t status;
+ uint8_t source;
+ int16_t size;
+ union _resp_cont {
+ uint64_t time;
+ struct fw_version ver;
+ } cont;
+} __packed;
+
+struct mei_pse {
+ struct mei_cl_device *cldev;
+
+ struct mutex cmd_mutex;
+ struct pse_notif notif;
+ struct completion response;
+
+ uint8_t *recv_buf;
+
+ uint8_t *pm_data;
+ uint32_t pm_data_pos;
+
+ loff_t em_pos;
+ struct file *em_file;
+
+ loff_t sem_pos;
+ struct file *sem_file;
+
+ struct dentry *dfs_dir;
+};
+
+static int mei_pse_send(struct mei_pse *pse, struct pse_cmd *cmd, size_t len)
+{
+ int ret;
+
+ reinit_completion(&pse->response);
+
+ ret = mei_cldev_send(pse->cldev, (uint8_t *)cmd, len);
+ if (ret < 0) {
+ dev_err(&pse->cldev->dev,
+ "send command fail %d\n", ret);
+ return ret;
+ }
+
+ ret = wait_for_completion_killable_timeout(&pse->response, PSE_TIMEOUT);
+ if (ret < 0) {
+ dev_err(&pse->cldev->dev,
+ "command %d response error\n", cmd->cmd_id);
+ return ret;
+ } else if (ret == 0) {
+ dev_err(&pse->cldev->dev,
+ "command %d response timeout\n", cmd->cmd_id);
+ ret = -ETIMEDOUT;
+ return ret;
+ }
+
+ ret = pse->notif.status;
+ if (ret) {
+ dev_err(&pse->cldev->dev,
+ "command %d response fail %d\n", cmd->cmd_id, ret);
+ return ret;
+ }
+
+ if (pse->notif.cmd_id != cmd->cmd_id) {
+ dev_err(&pse->cldev->dev,
+ "command response id mismatch, sent %d but got %d\n",
+ cmd->cmd_id, pse->notif.cmd_id);
+ ret = -1;
+ }
+
+ return ret;
+}
+
+static int pse_log_onoff(struct mei_pse *pse, uint8_t onoff)
+{
+ struct pse_cmd cmd;
+ size_t cmd_len = sizeof(cmd.cmd_id);
+ int ret;
+
+ cmd.cmd_id = LOG_ONOFF;
+ cmd.param.param = onoff;
+ cmd_len += sizeof(cmd.param.param);
+
+ mutex_lock(&pse->cmd_mutex);
+ ret = mei_pse_send(pse, &cmd, cmd_len);
+ mutex_unlock(&pse->cmd_mutex);
+
+ return ret;
+}
+
+static ssize_t pse_log_onoff_write(struct file *file,
+ const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct mei_pse *pse = file->private_data;
+ int ret;
+ uint8_t state;
+
+ ret = kstrtou8_from_user(buf, count, 0, &state);
+ if (ret)
+ return ret;
+
+ pse_log_onoff(pse, state);
+
+ return count;
+}
+
+static int pse_set_watermark(struct mei_pse *pse, int val)
+{
+ struct pse_cmd cmd;
+ size_t cmd_len = sizeof(cmd.cmd_id);
+ int ret;
+
+ if (val < -1 || val > 100) {
+ dev_err(&pse->cldev->dev, "error water mark value\n");
+ return -1;
+ }
+
+ cmd.cmd_id = SET_WATERMARK;
+ cmd.param.param = val;
+ cmd_len += sizeof(cmd.param.param);
+
+ mutex_lock(&pse->cmd_mutex);
+ ret = mei_pse_send(pse, &cmd, cmd_len);
+ mutex_unlock(&pse->cmd_mutex);
+
+ return ret;
+}
+
+static ssize_t pse_watermark_write(struct file *file,
+ const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct mei_pse *pse = file->private_data;
+ int ret, val;
+
+ ret = kstrtoint_from_user(buf, count, 0, &val);
+ if (ret)
+ return ret;
+
+ pse_set_watermark(pse, val);
+
+ return count;
+}
+
+static int pse_dump_trace(struct mei_pse *pse)
+{
+ struct pse_cmd cmd;
+ size_t cmd_len = sizeof(cmd.cmd_id);
+ int ret;
+
+ cmd.cmd_id = DUMP_TRACE;
+
+ mutex_lock(&pse->cmd_mutex);
+ ret = mei_pse_send(pse, &cmd, cmd_len);
+ mutex_unlock(&pse->cmd_mutex);
+
+ return ret;
+}
+
+static ssize_t pse_dump_trace_write(struct file *file,
+ const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct mei_pse *pse = file->private_data;
+ int ret;
+ uint8_t val;
+
+ ret = kstrtou8_from_user(buf, count, 0, &val);
+ if (ret)
+ return ret;
+
+ if (!val)
+ return -EINVAL;
+
+ pse_dump_trace(pse);
+
+ return count;
+}
+
+static int pse_set_timeout(struct mei_pse *pse, int val)
+{
+ struct pse_cmd cmd;
+ size_t cmd_len = sizeof(cmd.cmd_id);
+ int ret;
+
+ if (val < -1 || val > 999) {
+ dev_err(&pse->cldev->dev, "error timeout value\n");
+ return -1;
+ }
+
+ cmd.cmd_id = SET_TIMEOUT;
+ cmd.param.param = val;
+ cmd_len += sizeof(cmd.param.param);
+
+ mutex_lock(&pse->cmd_mutex);
+ ret = mei_pse_send(pse, &cmd, cmd_len);
+ mutex_unlock(&pse->cmd_mutex);
+
+ return ret;
+}
+
+static ssize_t pse_timeout_write(struct file *file,
+ const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct mei_pse *pse = file->private_data;
+ int ret, val;
+
+ ret = kstrtoint_from_user(buf, count, 0, &val);
+ if (ret)
+ return ret;
+
+ pse_set_timeout(pse, val);
+
+ return count;
+}
+
+static int pse_set_log_level(struct mei_pse *pse, int val)
+{
+ struct pse_cmd cmd;
+ size_t cmd_len = sizeof(cmd.cmd_id);
+ int ret;
+
+ if (val < 0 || val > 4) {
+ dev_err(&pse->cldev->dev, "unsupported log level\n");
+ return -1;
+ }
+
+ cmd.cmd_id = SET_LOG_LEVEL;
+ cmd.param.param = val;
+ cmd_len += sizeof(cmd.param.param);
+
+ mutex_lock(&pse->cmd_mutex);
+ ret = mei_pse_send(pse, &cmd, cmd_len);
+ mutex_unlock(&pse->cmd_mutex);
+
+ return ret;
+}
+
+static ssize_t pse_log_level_write(struct file *file,
+ const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct mei_pse *pse = file->private_data;
+ int ret, val;
+
+ ret = kstrtoint_from_user(buf, count, 0, &val);
+ if (ret)
+ return ret;
+
+ pse_set_log_level(pse, val);
+
+ return count;
+}
+
+static int pse_set_time(struct mei_pse *pse)
+{
+ struct pse_cmd cmd;
+ size_t cmd_len = sizeof(cmd.cmd_id);
+ int ret;
+
+ cmd.cmd_id = SET_TIME;
+ cmd.param.time = ktime_get_ns();
+ cmd_len += sizeof(cmd.param.time);
+
+ mutex_lock(&pse->cmd_mutex);
+ ret = mei_pse_send(pse, &cmd, cmd_len);
+ mutex_unlock(&pse->cmd_mutex);
+
+ return ret;
+}
+
+static ssize_t pse_time_write(struct file *file,
+ const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct mei_pse *pse = file->private_data;
+ int ret;
+
+ ret = pse_set_time(pse);
+ if (ret)
+ return ret;
+
+ return count;
+}
+
+static int pse_get_time(struct mei_pse *pse, uint64_t *val)
+{
+ struct pse_cmd cmd;
+ size_t cmd_len = sizeof(cmd.cmd_id);
+ int ret;
+
+ cmd.cmd_id = GET_TIME;
+
+ mutex_lock(&pse->cmd_mutex);
+ ret = mei_pse_send(pse, &cmd, cmd_len);
+ mutex_unlock(&pse->cmd_mutex);
+ if (!ret) {
+ *val = pse->notif.cont.time;
+
+ dev_info(&pse->cldev->dev,
+ "time = (%llu) nanoseconds\n", *val);
+ }
+
+ return ret;
+}
+
+static ssize_t pse_time_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct mei_pse *pse = file->private_data;
+ int ret, pos;
+ uint64_t val;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+
+ if (!addr)
+ return -ENOMEM;
+
+ ret = pse_get_time(pse, &val);
+ if (ret)
+ goto out;
+
+ pos = snprintf((char *)addr, PAGE_SIZE,
+ "pse time = (%llu) nanoseconds\n", val);
+
+ ret = simple_read_from_buffer(buf, count, ppos, (char *)addr, pos);
+
+out:
+ free_page(addr);
+ return ret;
+}
+
+static int pse_dump_power_data(struct mei_pse *pse)
+{
+ struct pse_cmd cmd;
+ size_t cmd_len = sizeof(cmd.cmd_id);
+ int ret;
+
+ cmd.cmd_id = DUMP_POWER_DATA;
+
+ mutex_lock(&pse->cmd_mutex);
+ ret = mei_pse_send(pse, &cmd, cmd_len);
+ mutex_unlock(&pse->cmd_mutex);
+
+ return ret;
+}
+
+static int dump_power_state_data(struct mei_pse *pse,
+ char *addr, int pos, int len)
+{
+ const char * const names[] = {"EM7D", "SEM"};
+ const char *title =
+ "| power states | duration(ms) | count | percentage(%) |";
+ struct pm_subsys *subsys;
+ uint64_t total_duration, duration, num, frac;
+ int i, j;
+
+ for (i = 0; i < PM_SUBSYS_MAX; i++) {
+ subsys = &((struct pm_data *)pse->pm_data)->subsys[i];
+
+ pos += snprintf((char *)addr + pos,
+ len - pos,
+ "power state of %s:\n",
+ names[i]);
+
+ pos += snprintf((char *)addr + pos,
+ len - pos,
+ "%s\n",
+ title);
+
+ total_duration = 0;
+ for (j = 0; j < STATE_MAX; j++)
+ total_duration += subsys->status[j].duration;
+
+ for (j = 0; j < STATE_MAX; j++) {
+ duration = subsys->status[j].duration * 100;
+ num = duration / total_duration;
+ frac = (duration % total_duration *
+ 10000000 / total_duration + 5) / 10;
+
+ pos += snprintf((char *)addr + pos,
+ len - pos,
+ "|%13.16s |%13llu |%6llu |%7u.%06u |\n",
+ subsys->status[j].name,
+ subsys->status[j].duration,
+ subsys->status[j].count,
+ (uint32_t)num,
+ (uint32_t)frac);
+ }
+
+ pos += snprintf((char *)addr + pos, len - pos, "\n");
+ }
+
+ return pos;
+}
+
+static int dump_dev_power_data(struct mei_pse *pse,
+ char *addr, int pos, int len)
+{
+ const char * const names[] = {"EM7D", "SEM"};
+ struct pm_subsys *subsys;
+ int i, j;
+ const char *title = CONSTRUCTED_TITLE;
+ const char *format = CONSTRUCTED_FORMAT;
+
+ for (i = 0; i < PM_SUBSYS_MAX; i++) {
+ subsys = &((struct pm_data *)pse->pm_data)->subsys[i];
+
+ pos += snprintf((char *)addr + pos,
+ len - pos,
+ "device list of %s:\n",
+ names[i]);
+
+ pos += snprintf((char *)addr + pos,
+ len - pos,
+ "%s\n",
+ title);
+
+ for (j = 0; j < subsys->dev.dev_cnt; j += 4) {
+ switch (subsys->dev.dev_cnt - j) {
+ case 1:
+ pos += snprintf((char *)addr + pos,
+ len - pos,
+ format,
+ subsys->dev.dev[j].name,
+ subsys->dev.dev[j].block_cnt,
+ "", 0,
+ "", 0,
+ "", 0);
+ break;
+
+ case 2:
+ pos += snprintf((char *)addr + pos,
+ len - pos,
+ format,
+ subsys->dev.dev[j].name,
+ subsys->dev.dev[j].block_cnt,
+ subsys->dev.dev[j+1].name,
+ subsys->dev.dev[j+1].block_cnt,
+ "", 0,
+ "", 0);
+ break;
+
+ case 3:
+ pos += snprintf((char *)addr + pos,
+ len - pos,
+ format,
+ subsys->dev.dev[j].name,
+ subsys->dev.dev[j].block_cnt,
+ subsys->dev.dev[j+1].name,
+ subsys->dev.dev[j+1].block_cnt,
+ subsys->dev.dev[j+2].name,
+ subsys->dev.dev[j+2].block_cnt,
+ "", 0);
+ break;
+
+ default:
+ pos += snprintf((char *)addr + pos,
+ len - pos,
+ format,
+ subsys->dev.dev[j].name,
+ subsys->dev.dev[j].block_cnt,
+ subsys->dev.dev[j+1].name,
+ subsys->dev.dev[j+1].block_cnt,
+ subsys->dev.dev[j+2].name,
+ subsys->dev.dev[j+2].block_cnt,
+ subsys->dev.dev[j+3].name,
+ subsys->dev.dev[j+3].block_cnt);
+ break;
+ }
+ }
+
+ if (i < PM_SUBSYS_MAX - 1)
+ pos += snprintf((char *)addr + pos, len - pos, "\n");
+ }
+
+ return pos;
+}
+
+static ssize_t pse_power_data_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct mei_pse *pse = file->private_data;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+ int ret, pos = 0;
+
+ if (!addr)
+ return -ENOMEM;
+
+ ret = pse_dump_power_data(pse);
+ if (ret)
+ goto out;
+
+ pos = dump_power_state_data(pse, (char *)addr, pos, PAGE_SIZE);
+ pos = dump_dev_power_data(pse, (char *)addr, pos, PAGE_SIZE);
+
+ ret = simple_read_from_buffer(buf, count, ppos, (char *)addr, pos);
+
+out:
+ free_page(addr);
+ return ret;
+}
+
+static int pse_get_fw_ver(struct mei_pse *pse, struct fw_version *ver)
+{
+ struct pse_cmd cmd;
+ size_t cmd_len = sizeof(cmd.cmd_id);
+ int ret;
+
+ cmd.cmd_id = GET_FW_VER;
+
+ mutex_lock(&pse->cmd_mutex);
+ ret = mei_pse_send(pse, &cmd, cmd_len);
+ if (!ret) {
+ memcpy(ver, &pse->notif.cont.ver, sizeof(*ver));
+
+ dev_info(&pse->cldev->dev,
+ "fw version: %u.%u.%u.%u\n",
+ ver->major, ver->minor, ver->hotfix, ver->build);
+ }
+ mutex_unlock(&pse->cmd_mutex);
+
+ return ret;
+}
+
+static ssize_t pse_fw_ver_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct mei_pse *pse = file->private_data;
+ int ret, pos;
+ struct fw_version ver;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+
+ if (!addr)
+ return -ENOMEM;
+
+ ret = pse_get_fw_ver(pse, &ver);
+ if (ret)
+ goto out;
+
+ pos = snprintf((char *)addr, PAGE_SIZE,
+ "fw version: %u.%u.%u.%u\n",
+ ver.major, ver.minor, ver.hotfix, ver.build);
+
+ ret = simple_read_from_buffer(buf, count, ppos, (char *)addr, pos);
+
+out:
+ free_page(addr);
+ return ret;
+}
+
+#define PSE_DFS_ADD_FILE(name) \
+ debugfs_create_file(#name, 0644, pse->dfs_dir, pse, \
+ &pse_dfs_##name##_fops)
+
+#define PSE_DFS_FILE_OPS(name) \
+static const struct file_operations pse_dfs_##name##_fops = { \
+ .read = pse_##name##_read, \
+ .write = pse_##name##_write, \
+ .open = simple_open, \
+}
+
+#define PSE_DFS_FILE_READ_OPS(name) \
+static const struct file_operations pse_dfs_##name##_fops = { \
+ .read = pse_##name##_read, \
+ .open = simple_open, \
+}
+
+#define PSE_DFS_FILE_WRITE_OPS(name) \
+static const struct file_operations pse_dfs_##name##_fops = { \
+ .write = pse_##name##_write, \
+ .open = simple_open, \
+}
+
+PSE_DFS_FILE_WRITE_OPS(log_onoff);
+PSE_DFS_FILE_WRITE_OPS(watermark);
+PSE_DFS_FILE_WRITE_OPS(dump_trace);
+PSE_DFS_FILE_WRITE_OPS(timeout);
+PSE_DFS_FILE_WRITE_OPS(log_level);
+
+PSE_DFS_FILE_OPS(time);
+
+PSE_DFS_FILE_READ_OPS(fw_ver);
+PSE_DFS_FILE_READ_OPS(power_data);
+
+/* callback for command response receive */
+static void mei_pse_rx(struct mei_cl_device *cldev)
+{
+ int ret;
+ struct pse_notif *notif;
+ struct mei_pse *pse = mei_cldev_get_drvdata(cldev);
+ struct file *file;
+ loff_t *pos;
+
+ ret = mei_cldev_recv(cldev, pse->recv_buf, MAX_RECV_SIZE);
+ if (ret < 0) {
+ dev_err(&cldev->dev, "failure in recv %d\n", ret);
+ return;
+ }
+ notif = (struct pse_notif *)pse->recv_buf;
+
+ switch (notif->cmd_id) {
+ case TRACE_DATA_NOTIF:
+ if (notif->source) {
+ file = pse->sem_file;
+ pos = &pse->sem_pos;
+ } else {
+ file = pse->em_file;
+ pos = &pse->em_pos;
+ }
+
+ if (*pos < MAX_LOG_SIZE) {
+ ret = kernel_write(file,
+ pse->recv_buf + CONT_OFFSET,
+ ret - CONT_OFFSET,
+ pos);
+ if (ret < 0)
+ dev_err(&cldev->dev,
+ "error in writing log %d\n", ret);
+ else
+ *pos += ret;
+ } else
+ dev_warn(&cldev->dev,
+ "already exceed max log size\n");
+ break;
+
+ case LOG_ONOFF:
+ case SET_WATERMARK:
+ case DUMP_TRACE:
+ case SET_TIMEOUT:
+ case SET_LOG_LEVEL:
+ case SET_TIME:
+ case GET_TIME:
+ case GET_FW_VER:
+ memcpy(&pse->notif, notif, ret);
+
+ if (!completion_done(&pse->response))
+ complete(&pse->response);
+ break;
+
+ case DUMP_POWER_DATA:
+ if (notif->status == 0) {
+ memcpy(pse->pm_data + pse->pm_data_pos,
+ pse->recv_buf + NOTIF_HEADER_LEN,
+ ret - NOTIF_HEADER_LEN);
+ pse->pm_data_pos += ret - NOTIF_HEADER_LEN;
+
+ if (pse->pm_data_pos >= sizeof(struct pm_data)) {
+ pse->pm_data_pos = 0;
+ memcpy(&pse->notif, notif, NOTIF_HEADER_LEN);
+
+ if (!completion_done(&pse->response))
+ complete(&pse->response);
+ }
+ } else {
+ dev_err(&cldev->dev, "error in recving power data\n");
+
+ pse->pm_data_pos = 0;
+ memcpy(&pse->notif, notif, NOTIF_HEADER_LEN);
+
+ if (!completion_done(&pse->response))
+ complete(&pse->response);
+ }
+ break;
+
+ default:
+ dev_err(&cldev->dev,
+ "recv not supported notification\n");
+ break;
+ }
+}
+
+static int mei_pse_probe(struct mei_cl_device *cldev,
+ const struct mei_cl_device_id *id)
+{
+ struct mei_pse *pse;
+ int ret;
+ uint32_t order = get_order(MAX_RECV_SIZE);
+
+ pse = kzalloc(sizeof(struct mei_pse), GFP_KERNEL);
+ if (!pse)
+ return -ENOMEM;
+
+ pse->recv_buf = (uint8_t *)__get_free_pages(GFP_KERNEL, order);
+ if (!pse->recv_buf) {
+ kfree(pse);
+ return -ENOMEM;
+ }
+
+ pse->pm_data = (uint8_t *)__get_free_pages(GFP_KERNEL, order);
+ if (!pse->pm_data) {
+ free_pages((unsigned long)pse->recv_buf, order);
+ kfree(pse);
+ return -ENOMEM;
+ }
+ pse->pm_data_pos = 0;
+
+ pse->cldev = cldev;
+ mutex_init(&pse->cmd_mutex);
+ init_completion(&pse->response);
+
+ mei_cldev_set_drvdata(cldev, pse);
+
+ ret = mei_cldev_enable(cldev);
+ if (ret < 0) {
+ dev_err(&cldev->dev,
+ "couldn't enable pse client ret=%d\n", ret);
+ goto err_out;
+ }
+
+ ret = mei_cldev_register_rx_cb(cldev, mei_pse_rx);
+ if (ret) {
+ dev_err(&cldev->dev,
+ "couldn't register rx event ret=%d\n", ret);
+ goto err_disable;
+ }
+
+ pse->em_file = filp_open(EM_LOG_FILE,
+ O_CREAT | O_RDWR | O_LARGEFILE | O_TRUNC,
+ 0600);
+ if (IS_ERR(pse->em_file)) {
+ dev_err(&cldev->dev,
+ "filp_open(%s) failed\n", EM_LOG_FILE);
+ ret = PTR_ERR(pse->em_file);
+ goto err_disable;
+ }
+ pse->em_pos = 0;
+
+ pse->sem_file = filp_open(SEM_LOG_FILE,
+ O_CREAT | O_RDWR | O_LARGEFILE | O_TRUNC,
+ 0600);
+ if (IS_ERR(pse->sem_file)) {
+ dev_err(&cldev->dev,
+ "filp_open(%s) failed\n", SEM_LOG_FILE);
+ ret = PTR_ERR(pse->sem_file);
+ goto err_close;
+ }
+ pse->sem_pos = 0;
+
+ pse->dfs_dir = debugfs_create_dir("vsc_pse", NULL);
+ if (pse->dfs_dir) {
+ PSE_DFS_ADD_FILE(log_onoff);
+ PSE_DFS_ADD_FILE(watermark);
+ PSE_DFS_ADD_FILE(dump_trace);
+ PSE_DFS_ADD_FILE(timeout);
+ PSE_DFS_ADD_FILE(log_level);
+ PSE_DFS_ADD_FILE(time);
+ PSE_DFS_ADD_FILE(fw_ver);
+ PSE_DFS_ADD_FILE(power_data);
+ }
+
+ return 0;
+
+err_close:
+ filp_close(pse->em_file, NULL);
+
+err_disable:
+ mei_cldev_disable(cldev);
+
+err_out:
+ free_pages((unsigned long)pse->pm_data, order);
+
+ free_pages((unsigned long)pse->recv_buf, order);
+
+ kfree(pse);
+
+ return ret;
+}
+
+static void mei_pse_remove(struct mei_cl_device *cldev)
+{
+ struct mei_pse *pse = mei_cldev_get_drvdata(cldev);
+ uint32_t order = get_order(MAX_RECV_SIZE);
+
+ if (!completion_done(&pse->response))
+ complete(&pse->response);
+
+ mei_cldev_disable(cldev);
+
+ debugfs_remove_recursive(pse->dfs_dir);
+
+ filp_close(pse->em_file, NULL);
+ filp_close(pse->sem_file, NULL);
+
+ /* wait until no buffer acccess */
+ mutex_lock(&pse->cmd_mutex);
+ mutex_unlock(&pse->cmd_mutex);
+
+ free_pages((unsigned long)pse->pm_data, order);
+
+ free_pages((unsigned long)pse->recv_buf, order);
+
+ kfree(pse);
+}
+
+#define MEI_UUID_PSE UUID_LE(0xD035E00C, 0x6DAE, 0x4B6D, \
+ 0xB4, 0x7A, 0xF8, 0x8E, 0x30, 0x2A, 0x40, 0x4E)
+
+static const struct mei_cl_device_id mei_pse_tbl[] = {
+ { MEI_PSE_DRIVER_NAME, MEI_UUID_PSE, MEI_CL_VERSION_ANY },
+
+ /* required last entry */
+ { }
+};
+MODULE_DEVICE_TABLE(mei, mei_pse_tbl);
+
+static struct mei_cl_driver mei_pse_driver = {
+ .id_table = mei_pse_tbl,
+ .name = MEI_PSE_DRIVER_NAME,
+
+ .probe = mei_pse_probe,
+ .remove = mei_pse_remove,
+};
+
+static int __init mei_pse_init(void)
+{
+ int ret;
+
+ ret = mei_cldev_driver_register(&mei_pse_driver);
+ if (ret) {
+ pr_err("mei pse driver registration failed: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void __exit mei_pse_exit(void)
+{
+ mei_cldev_driver_unregister(&mei_pse_driver);
+}
+
+module_init(mei_pse_init);
+module_exit(mei_pse_exit);
+
+MODULE_AUTHOR("Intel Corporation");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Device driver for Intel VSC PSE client");
diff --git a/drivers/misc/mei/Kconfig b/drivers/misc/mei/Kconfig
index f5fd5b7866073..559858e56de98 100644
--- a/drivers/misc/mei/Kconfig
+++ b/drivers/misc/mei/Kconfig
@@ -46,4 +46,11 @@ config INTEL_MEI_TXE
Supported SoCs:
Intel Bay Trail
+config INTEL_MEI_VSC
+ tristate "Intel Vision Sensing Controller device with ME interface"
+ select INTEL_MEI
+ depends on X86 && SPI
+ help
+ MEI over SPI for Intel Vision Sensing Controller device
+
source "drivers/misc/mei/hdcp/Kconfig"
diff --git a/drivers/misc/mei/Makefile b/drivers/misc/mei/Makefile
index f1c76f7ee8042..a692dedee4d24 100644
--- a/drivers/misc/mei/Makefile
+++ b/drivers/misc/mei/Makefile
@@ -22,6 +22,10 @@ obj-$(CONFIG_INTEL_MEI_TXE) += mei-txe.o
mei-txe-objs := pci-txe.o
mei-txe-objs += hw-txe.o
+obj-$(CONFIG_INTEL_MEI_VSC) += mei-vsc.o
+mei-vsc-objs := spi-vsc.o
+mei-vsc-objs += hw-vsc.o
+
mei-$(CONFIG_EVENT_TRACING) += mei-trace.o
CFLAGS_mei-trace.o = -I$(src)
diff --git a/drivers/misc/mei/hw-vsc.c b/drivers/misc/mei/hw-vsc.c
new file mode 100644
index 0000000000000..818d03b0d5dcf
--- /dev/null
+++ b/drivers/misc/mei/hw-vsc.c
@@ -0,0 +1,1637 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2021, Intel Corporation. All rights reserved.
+ * Intel Management Engine Interface (Intel MEI) Linux driver
+ */
+#include <linux/crc32.h>
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/interrupt.h>
+#include <linux/kthread.h>
+#include <linux/pci.h>
+#include <linux/pm_runtime.h>
+#include <linux/sizes.h>
+#include <linux/swap.h>
+#include <linux/types.h>
+
+#include "hbm.h"
+#include "hw-vsc.h"
+#include "mei_dev.h"
+#include "mei-trace.h"
+
+static int spi_dev_xfer(struct mei_vsc_hw *hw, void *out_data, void *in_data,
+ int len)
+{
+ hw->xfer.tx_buf = out_data;
+ hw->xfer.rx_buf = in_data;
+ hw->xfer.len = len;
+
+ spi_message_init_with_transfers(&hw->msg, &hw->xfer, 1);
+ return spi_sync_locked(hw->spi, &hw->msg);
+}
+
+#define SPI_XFER_PACKET_CRC(pkt) (*(u32 *)(pkt->buf + pkt->hdr.len))
+static int spi_validate_packet(struct mei_vsc_hw *hw,
+ struct spi_xfer_packet *pkt)
+{
+ u32 base_crc;
+ u32 crc;
+ struct spi_xfer_hdr *hdr = &pkt->hdr;
+
+ base_crc = SPI_XFER_PACKET_CRC(pkt);
+ crc = ~crc32(~0, (u8 *)pkt, sizeof(struct spi_xfer_hdr) + pkt->hdr.len);
+
+ if (base_crc != crc) {
+ dev_err(&hw->spi->dev, "%s crc error cmd %x 0x%x 0x%x\n",
+ __func__, hdr->cmd, base_crc, crc);
+ return -EINVAL;
+ }
+
+ if (hdr->cmd == CMD_SPI_FATAL_ERR) {
+ dev_err(&hw->spi->dev,
+ "receive fatal error from FW cmd %d %d %d.\nCore dump: %s\n",
+ hdr->cmd, hdr->seq, hw->seq, (char *)pkt->buf);
+ return -EIO;
+ } else if (hdr->cmd == CMD_SPI_NACK || hdr->cmd == CMD_SPI_BUSY ||
+ hdr->seq != hw->seq) {
+ dev_err(&hw->spi->dev, "receive error from FW cmd %d %d %d\n",
+ hdr->cmd, hdr->seq, hw->seq);
+ return -EAGAIN;
+ }
+
+ return 0;
+}
+
+static inline bool spi_rom_xfer_asserted(struct mei_vsc_hw *hw)
+{
+ return gpiod_get_value_cansleep(hw->wakeuphost);
+}
+
+static inline bool spi_xfer_asserted(struct mei_vsc_hw *hw)
+{
+ return atomic_read(&hw->lock_cnt) > 0 &&
+ gpiod_get_value_cansleep(hw->wakeuphost);
+}
+
+static void spi_xfer_lock(struct mei_vsc_hw *hw)
+{
+ gpiod_set_value_cansleep(hw->wakeupfw, 0);
+}
+
+static void spi_xfer_unlock(struct mei_vsc_hw *hw)
+{
+ atomic_dec_if_positive(&hw->lock_cnt);
+ gpiod_set_value_cansleep(hw->wakeupfw, 1);
+}
+
+static bool spi_xfer_locked(struct mei_vsc_hw *hw)
+{
+ return !gpiod_get_value_cansleep(hw->wakeupfw);
+}
+
+static bool spi_need_read(struct mei_vsc_hw *hw)
+{
+ return spi_xfer_asserted(hw) && !spi_xfer_locked(hw);
+}
+
+#define WAIT_FW_ASSERTED_TIMEOUT (2 * HZ)
+static int spi_xfer_wait_asserted(struct mei_vsc_hw *hw)
+{
+ wait_event_timeout(hw->xfer_wait, spi_xfer_asserted(hw),
+ WAIT_FW_ASSERTED_TIMEOUT);
+
+ dev_dbg(&hw->spi->dev, "%s %d %d %d\n", __func__,
+ atomic_read(&hw->lock_cnt),
+ gpiod_get_value_cansleep(hw->wakeupfw),
+ gpiod_get_value_cansleep(hw->wakeuphost));
+ if (!spi_xfer_asserted(hw))
+ return -ETIME;
+ else
+ return 0;
+}
+
+static int spi_wakeup_request(struct mei_vsc_hw *hw)
+{
+ /* wakeup spi slave and wait for response */
+ spi_xfer_lock(hw);
+ return spi_xfer_wait_asserted(hw);
+}
+
+static void spi_wakeup_release(struct mei_vsc_hw *hw)
+{
+ return spi_xfer_unlock(hw);
+}
+
+static int find_sync_byte(u8 *buf, int len)
+{
+ int i;
+
+ for (i = 0; i < len; i++)
+ if (buf[i] == PACKET_SYNC)
+ return i;
+
+ return -1;
+}
+
+#define PACKET_PADDING_SIZE 1
+#define MAX_XFER_COUNT 5
+static int mei_vsc_xfer_internal(struct mei_vsc_hw *hw,
+ struct spi_xfer_packet *pkt,
+ struct spi_xfer_packet *ack_pkt)
+{
+ u8 *rx_buf = hw->rx_buf1;
+ u8 *tx_buf = hw->tx_buf1;
+ int next_xfer_len = PACKET_SIZE(pkt) + XFER_TIMEOUT_BYTES;
+ int offset = 0;
+ bool synced = false;
+ int len;
+ int count_down = MAX_XFER_COUNT;
+ int ret = 0;
+ int i;
+
+ dev_dbg(&hw->spi->dev, "spi tx pkt begin: %s %d %d\n", __func__,
+ spi_xfer_asserted(hw), gpiod_get_value_cansleep(hw->wakeupfw));
+ memcpy(tx_buf, pkt, PACKET_SIZE(pkt));
+ memset(rx_buf, 0, MAX_XFER_BUFFER_SIZE);
+
+ do {
+ dev_dbg(&hw->spi->dev,
+ "spi tx pkt partial ing: %s %d %d %d %d\n", __func__,
+ spi_xfer_asserted(hw),
+ gpiod_get_value_cansleep(hw->wakeupfw), next_xfer_len,
+ synced);
+
+ count_down--;
+ ret = spi_dev_xfer(hw, tx_buf, rx_buf, next_xfer_len);
+ if (ret)
+ return ret;
+
+ memset(tx_buf, 0, MAX_XFER_BUFFER_SIZE);
+ if (!synced) {
+ i = find_sync_byte(rx_buf, next_xfer_len);
+ if (i >= 0) {
+ synced = true;
+ len = next_xfer_len - i;
+ } else {
+ continue;
+ }
+
+ } else {
+ i = 0;
+ len = min_t(int, next_xfer_len,
+ sizeof(*ack_pkt) - offset);
+ }
+
+ memcpy(&ack_pkt[offset], &rx_buf[i], len);
+ offset += len;
+
+ if (offset >= sizeof(ack_pkt->hdr))
+ next_xfer_len = PACKET_SIZE(ack_pkt) - offset +
+ PACKET_PADDING_SIZE;
+
+ } while (next_xfer_len > 0 && count_down > 0);
+
+ dev_dbg(&hw->spi->dev, "spi tx pkt done: %s %d %d cmd %d %d %d %d\n",
+ __func__, next_xfer_len, count_down, ack_pkt->hdr.sync,
+ ack_pkt->hdr.cmd, ack_pkt->hdr.len, ack_pkt->hdr.seq);
+
+ if (next_xfer_len > 0)
+ return -EAGAIN;
+
+ return spi_validate_packet(hw, ack_pkt);
+}
+
+static int mei_vsc_xfer(struct mei_vsc_hw *hw, u8 cmd, void *tx, u32 tx_len,
+ void *rx, int rx_max_len, u32 *rx_len)
+{
+ struct spi_xfer_packet *pkt;
+ struct spi_xfer_packet *ack_pkt;
+ u32 *crc;
+ int ret;
+
+ if (!tx || !rx || tx_len > MAX_SPI_MSG_SIZE)
+ return -EINVAL;
+
+ if (rx_len)
+ *rx_len = 0;
+
+ pkt = kzalloc(sizeof(*pkt) + sizeof(*ack_pkt), GFP_KERNEL);
+ ack_pkt = pkt + 1;
+ if (!pkt || !ack_pkt)
+ return -ENOMEM;
+
+ pkt->hdr.sync = PACKET_SYNC;
+ pkt->hdr.cmd = cmd;
+ pkt->hdr.seq = ++hw->seq;
+ pkt->hdr.len = tx_len;
+
+ memcpy(pkt->buf, tx, tx_len);
+ crc = (u32 *)(pkt->buf + tx_len);
+ *crc = ~crc32(~0, (u8 *)pkt, sizeof(pkt->hdr) + tx_len);
+
+ mutex_lock(&hw->mutex);
+
+ ret = spi_wakeup_request(hw);
+ if (ret) {
+ dev_err(&hw->spi->dev, "wakeup vsc FW failed\n");
+ goto out;
+ }
+
+ ret = mei_vsc_xfer_internal(hw, pkt, ack_pkt);
+ if (ret)
+ goto out;
+
+ if (ack_pkt->hdr.len > 0) {
+ int len;
+
+ len = (ack_pkt->hdr.len < rx_max_len) ? ack_pkt->hdr.len :
+ rx_max_len;
+ memcpy(rx, ack_pkt->buf, len);
+ if (rx_len)
+ *rx_len = len;
+ }
+
+out:
+ spi_wakeup_release(hw);
+ mutex_unlock(&hw->mutex);
+ kfree(pkt);
+ return ret;
+}
+
+static int mei_vsc_read_raw(struct mei_vsc_hw *hw, u8 *buf, u32 max_len,
+ u32 *len)
+{
+ struct host_timestamp ts = { 0 };
+
+ ts.realtime = ktime_to_ns(ktime_get_real());
+ ts.boottime = ktime_to_ns(ktime_get_boottime());
+
+ return mei_vsc_xfer(hw, CMD_SPI_READ, &ts, sizeof(ts), buf, max_len,
+ len);
+}
+
+static int mei_vsc_write_raw(struct mei_vsc_hw *hw, u8 *buf, u32 len)
+{
+ u8 status = 0;
+ int rx_len;
+
+ return mei_vsc_xfer(hw, CMD_SPI_WRITE, buf, len, &status,
+ sizeof(status), &rx_len);
+}
+
+#define LOADER_XFER_RETRY_COUNT 25
+static int spi_rom_dev_xfer(struct mei_vsc_hw *hw, void *out_data,
+ void *in_data, int len)
+{
+ int ret;
+ int i;
+ u32 *tmp = out_data;
+ int retry = 0;
+
+ if (len % 4 != 0)
+ return -EINVAL;
+
+ for (i = 0; i < len / 4; i++)
+ tmp[i] = ___constant_swab32(tmp[i]);
+
+ mutex_lock(&hw->mutex);
+ while (retry < LOADER_XFER_RETRY_COUNT) {
+ if (!spi_rom_xfer_asserted(hw))
+ break;
+
+ msleep(20);
+ retry++;
+ }
+
+ if (retry >= LOADER_XFER_RETRY_COUNT) {
+ dev_err(&hw->spi->dev, "%s retry %d times gpio %d\n", __func__,
+ retry, spi_rom_xfer_asserted(hw));
+ mutex_unlock(&hw->mutex);
+ return -EAGAIN;
+ }
+
+ ret = spi_dev_xfer(hw, out_data, in_data, len);
+ mutex_unlock(&hw->mutex);
+ if (!in_data || ret)
+ return ret;
+
+ tmp = in_data;
+ for (i = 0; i < len / 4; i++)
+ tmp[i] = ___constant_swab32(tmp[i]);
+
+ return 0;
+}
+
+#define VSC_RESET_PIN_TOGGLE_INTERVAL 20
+#define VSC_ROM_BOOTUP_DELAY_TIME 10
+static int vsc_reset(struct mei_device *dev)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+
+ gpiod_set_value_cansleep(hw->resetfw, 1);
+ msleep(VSC_RESET_PIN_TOGGLE_INTERVAL);
+ gpiod_set_value_cansleep(hw->resetfw, 0);
+ msleep(VSC_RESET_PIN_TOGGLE_INTERVAL);
+ gpiod_set_value_cansleep(hw->resetfw, 1);
+ msleep(VSC_ROM_BOOTUP_DELAY_TIME);
+ /* set default host wake pin to 1, which try to avoid unexpected host irq interrupt */
+ gpiod_set_value_cansleep(hw->wakeupfw, 1);
+ return 0;
+}
+
+/* %s is sensor name, need to be get and format in runtime */
+static char *fw_name_template[][3] = {
+ {
+ "vsc/soc_a1/ivsc_fw_a1.bin",
+ "vsc/soc_a1/ivsc_pkg_%s_0_a1.bin",
+ "vsc/soc_a1/ivsc_skucfg_%s_0_1_a1.bin",
+ },
+ {
+ "vsc/soc_a1_prod/ivsc_fw_a1_prod.bin",
+ "vsc/soc_a1_prod/ivsc_pkg_%s_0_a1_prod.bin",
+ "vsc/soc_a1_prod/ivsc_skucfg_%s_0_1_a1_prod.bin",
+ },
+};
+
+static int check_silicon(struct mei_device *dev)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+ struct vsc_rom_master_frame *frame =
+ (struct vsc_rom_master_frame *)hw->fw.tx_buf;
+ struct vsc_rom_slave_token *token =
+ (struct vsc_rom_slave_token *)hw->fw.rx_buf;
+ int ret;
+ u32 efuse1;
+ u32 strap;
+
+ dev_dbg(dev->dev, "%s size %zu %zu\n", __func__, sizeof(*frame),
+ sizeof(*token));
+ frame->magic = VSC_MAGIC_NUM;
+ frame->cmd = VSC_CMD_DUMP_MEM;
+
+ frame->data.dump_mem.addr = EFUSE1_ADDR;
+ frame->data.dump_mem.len = 4;
+
+ ret = spi_rom_dev_xfer(hw, frame, token, VSC_ROM_SPI_PKG_SIZE);
+ if (ret || token->token == VSC_TOKEN_ERROR) {
+ dev_err(dev->dev, "%s %d %d %d\n", __func__, __LINE__, ret,
+ token->token);
+ return ret;
+ }
+
+ memset(frame, 0, sizeof(*frame));
+ memset(token, 0, sizeof(*token));
+ frame->magic = VSC_MAGIC_NUM;
+ frame->cmd = VSC_CMD_RESERVED;
+ ret = spi_rom_dev_xfer(hw, frame, token, VSC_ROM_SPI_PKG_SIZE);
+ if (ret || token->token == VSC_TOKEN_ERROR ||
+ token->token != VSC_TOKEN_DUMP_RESP) {
+ dev_err(dev->dev, "%s %d %d %d\n", __func__, __LINE__, ret,
+ token->token);
+ return -EIO;
+ }
+
+ efuse1 = *(u32 *)token->payload;
+ dev_dbg(dev->dev, "%s efuse1=%d\n", __func__, efuse1);
+
+ /* to check the silicon main and sub version */
+ hw->fw.main_ver = (efuse1 >> SI_MAINSTEPPING_VERSION_OFFSET) &
+ SI_MAINSTEPPING_VERSION_MASK;
+ hw->fw.sub_ver = (efuse1 >> SI_SUBSTEPPING_VERSION_OFFSET) &
+ SI_SUBSTEPPING_VERSION_MASK;
+ if (hw->fw.main_ver != SI_MAINSTEPPING_VERSION_A) {
+ dev_err(dev->dev, "%s: silicon main version error(%d)\n",
+ __func__, hw->fw.main_ver);
+ return -EINVAL;
+ }
+ if (hw->fw.sub_ver != SI_SUBSTEPPING_VERSION_0 &&
+ hw->fw.sub_ver != SI_SUBSTEPPING_VERSION_1) {
+ dev_dbg(dev->dev, "%s: silicon sub version error(%d)\n", __func__,
+ hw->fw.sub_ver);
+ return -EINVAL;
+ }
+
+ /* to get the silicon strap key: debug or production ? */
+ memset(frame, 0, sizeof(*frame));
+ memset(token, 0, sizeof(*token));
+ frame->magic = VSC_MAGIC_NUM;
+ frame->cmd = VSC_CMD_DUMP_MEM;
+ frame->data.dump_mem.addr = STRAP_ADDR;
+ frame->data.dump_mem.len = 4;
+
+ ret = spi_rom_dev_xfer(hw, frame, token, VSC_ROM_SPI_PKG_SIZE);
+ if (ret || token->token == VSC_TOKEN_ERROR) {
+ dev_err(dev->dev, "%s: transfer failed or invalid token\n",
+ __func__);
+ return ret;
+ }
+
+ frame->magic = VSC_MAGIC_NUM;
+ frame->cmd = VSC_CMD_RESERVED;
+ ret = spi_rom_dev_xfer(hw, frame, token, VSC_ROM_SPI_PKG_SIZE);
+ if (ret || token->token == VSC_TOKEN_ERROR ||
+ token->token != VSC_TOKEN_DUMP_RESP) {
+ dev_err(dev->dev,
+ "%s: transfer failed or invalid token-> (token = %d)\n",
+ __func__, token->token);
+ return -EINVAL;
+ }
+
+ dev_dbg(dev->dev,
+ "%s: getting the memory(0x%0x), step 2 payload: 0x%0x\n",
+ __func__, STRAP_ADDR, *(u32 *)token->payload);
+
+ strap = *(u32 *)token->payload;
+ dev_dbg(dev->dev, "%s: strap = 0x%x\n", __func__, strap);
+
+ /* to check the silicon strap key source */
+ hw->fw.key_src =
+ (strap >> SI_STRAP_KEY_SRC_OFFSET) & SI_STRAP_KEY_SRC_MASK;
+
+ dev_dbg(dev->dev, "%s: silicon version check done: %s%s\n", __func__,
+ hw->fw.sub_ver == SI_SUBSTEPPING_VERSION_0 ? "A0" : "A1",
+ hw->fw.key_src == SI_STRAP_KEY_SRC_DEBUG ? "" : "-prod");
+ if (hw->fw.sub_ver == SI_SUBSTEPPING_VERSION_1) {
+ if (hw->fw.key_src == SI_STRAP_KEY_SRC_DEBUG) {
+ snprintf(hw->fw.fw_file_name,
+ sizeof(hw->fw.fw_file_name),
+ fw_name_template[0][0]);
+ snprintf(hw->fw.sensor_file_name,
+ sizeof(hw->fw.sensor_file_name),
+ fw_name_template[0][1], hw->cam_sensor_name);
+ snprintf(hw->fw.sku_cnf_file_name,
+ sizeof(hw->fw.sku_cnf_file_name),
+ fw_name_template[0][2], hw->cam_sensor_name);
+ } else {
+ snprintf(hw->fw.fw_file_name,
+ sizeof(hw->fw.fw_file_name),
+ fw_name_template[1][0]);
+ snprintf(hw->fw.sensor_file_name,
+ sizeof(hw->fw.sensor_file_name),
+ fw_name_template[1][1], hw->cam_sensor_name);
+ snprintf(hw->fw.sku_cnf_file_name,
+ sizeof(hw->fw.sku_cnf_file_name),
+ fw_name_template[1][2], hw->cam_sensor_name);
+ }
+ }
+
+ return 0;
+}
+
+static int parse_main_fw(struct mei_device *dev, const struct firmware *fw)
+{
+ struct bootloader_sign *bootloader = NULL;
+ struct firmware_sign *arc_sem = NULL;
+ struct firmware_sign *em7d = NULL;
+ struct firmware_sign *ace_run = NULL;
+ struct firmware_sign *ace_vis = NULL;
+ struct firmware_sign *ace_conf = NULL;
+ struct vsc_boot_img *img = (struct vsc_boot_img *)fw->data;
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+ struct manifest *man = NULL;
+ struct fragment *bootl_frag = &hw->fw.frags[BOOT_IMAGE_TYPE];
+ struct fragment *arcsem_frag = &hw->fw.frags[ARC_SEM_IMG_TYPE];
+ struct fragment *acer_frag = &hw->fw.frags[ACER_IMG_TYPE];
+ struct fragment *acev_frag = &hw->fw.frags[ACEV_IMG_TYPE];
+ struct fragment *acec_frag = &hw->fw.frags[ACEC_IMG_TYPE];
+ struct fragment *em7d_frag = &hw->fw.frags[EM7D_IMG_TYPE];
+ struct firmware_sign *firmwares[IMG_CNT_MAX];
+ int i;
+
+ if (!img || img->magic != VSC_FILE_MAGIC) {
+ dev_err(dev->dev, "image file error\n");
+ return -EINVAL;
+ }
+
+ if (img->image_count < IMG_BOOT_ARC_EM7D ||
+ img->image_count > IMG_CNT_MAX) {
+ dev_err(dev->dev, "%s: image count error: image_count=0x%x\n",
+ __func__, img->image_count);
+ return -EINVAL;
+ }
+
+ dev_dbg(dev->dev, "%s: img->image_count=%d\n", __func__,
+ img->image_count);
+
+ /* only two lower bytes are used */
+ hw->fw.fw_option = img->option & 0xFFFF;
+ /* image not include bootloader */
+ hw->fw.fw_cnt = img->image_count - 1;
+
+ bootloader =
+ (struct bootloader_sign *)(img->image_loc + img->image_count);
+ if ((u8 *)bootloader > (fw->data + fw->size))
+ return -EINVAL;
+
+ if (bootloader->magic != VSC_FW_MAGIC) {
+ dev_err(dev->dev,
+ "bootloader signed magic error! magic number 0x%08x, image size 0x%08x\n",
+ bootloader->magic, bootloader->image_size);
+ return -EINVAL;
+ }
+
+ man = (struct manifest *)((char *)bootloader->image +
+ bootloader->image_size - SIG_SIZE -
+ sizeof(struct manifest) - CSSHEADER_SIZE);
+ if (man->svn == MAX_SVN_VALUE)
+ hw->fw.svn = MAX_SVN_VALUE;
+ else if (hw->fw.svn == 0)
+ hw->fw.svn = man->svn;
+
+ dev_dbg(dev->dev, "%s: svn: 0x%08X", __func__, hw->fw.svn);
+ /* currently only support silicon versoin A0 | A1 */
+ if ((hw->fw.sub_ver == SI_SUBSTEPPING_VERSION_0 &&
+ hw->fw.svn != MAX_SVN_VALUE) ||
+ (hw->fw.sub_ver == SI_SUBSTEPPING_VERSION_1 &&
+ hw->fw.svn == MAX_SVN_VALUE)) {
+ dev_err(dev->dev,
+ "silicon version and image svn not matched(A%s:0x%x)\n",
+ hw->fw.sub_ver == SI_SUBSTEPPING_VERSION_0 ? "0" : "1",
+ hw->fw.svn);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < img->image_count - 1; i++) {
+ if (i == 0) {
+ firmwares[i] =
+ (struct firmware_sign *)(bootloader->image +
+ bootloader->image_size);
+ dev_dbg(dev->dev,
+ "FW (%d/%d) magic number 0x%08x, image size 0x%08x\n",
+ i, img->image_count, firmwares[i]->magic,
+ firmwares[i]->image_size);
+ continue;
+ }
+
+ firmwares[i] =
+ (struct firmware_sign *)(firmwares[i - 1]->image +
+ firmwares[i - 1]->image_size);
+
+ if ((u8 *)firmwares[i] > fw->data + fw->size)
+ return -EINVAL;
+
+ dev_dbg(dev->dev,
+ "FW (%d/%d) magic number 0x%08x, image size 0x%08x\n", i,
+ img->image_count, firmwares[i]->magic,
+ firmwares[i]->image_size);
+ if (firmwares[i]->magic != VSC_FW_MAGIC) {
+ dev_err(dev->dev,
+ "FW (%d/%d) magic error! magic number 0x%08x, image size 0x%08x\n",
+ i, img->image_count, firmwares[i]->magic,
+ firmwares[i]->image_size);
+
+ return -EINVAL;
+ }
+ }
+
+ arc_sem = firmwares[0];
+ if (img->image_count >= IMG_BOOT_ARC_EM7D)
+ em7d = firmwares[img->image_count - 2];
+
+ if (img->image_count >= IMG_BOOT_ARC_ACER_EM7D)
+ ace_run = firmwares[1];
+
+ if (img->image_count >= IMG_BOOT_ARC_ACER_ACEV_EM7D)
+ ace_vis = firmwares[2];
+
+ if (img->image_count >= IMG_BOOT_ARC_ACER_ACEV_ACECNF_EM7D)
+ ace_conf = firmwares[3];
+
+ bootl_frag->data = bootloader->image;
+ bootl_frag->size = bootloader->image_size;
+ bootl_frag->location = img->image_loc[0];
+ if (!bootl_frag->location)
+ return -EINVAL;
+
+ if (!arc_sem)
+ return -EINVAL;
+ arcsem_frag->data = arc_sem->image;
+ arcsem_frag->size = arc_sem->image_size;
+ arcsem_frag->location = img->image_loc[1];
+ if (!arcsem_frag->location)
+ return -EINVAL;
+
+ if (ace_run) {
+ acer_frag->data = ace_run->image;
+ acer_frag->size = ace_run->image_size;
+ acer_frag->location = img->image_loc[2];
+ if (!acer_frag->location)
+ return -EINVAL;
+
+ if (ace_vis) {
+ acev_frag->data = ace_vis->image;
+ acev_frag->size = ace_vis->image_size;
+ /* Align to 4K boundary */
+ acev_frag->location = ((acer_frag->location +
+ acer_frag->size + 0xFFF) &
+ ~(0xFFF));
+ if (img->image_loc[3] &&
+ acer_frag->location != img->image_loc[3]) {
+ dev_err(dev->dev,
+ "ACE vision image location error. img->image_loc[3] = 0x%x, calculated is 0x%x\n",
+ img->image_loc[3], acev_frag->location);
+ /* when location mismatch, use the one from image file. */
+ acev_frag->location = img->image_loc[3];
+ }
+ }
+
+ if (ace_conf) {
+ acec_frag->data = ace_conf->image;
+ acec_frag->size = ace_conf->image_size;
+ /* Align to 4K boundary */
+ acec_frag->location = ((acev_frag->location +
+ acev_frag->size + 0xFFF) &
+ ~(0xFFF));
+ if (img->image_loc[4] &&
+ acec_frag->location != img->image_loc[4]) {
+ dev_err(dev->dev,
+ "ACE vision image location error. img->image_loc[4] = 0x%x, calculated is 0x%x\n",
+ img->image_loc[4], acec_frag->location);
+ /* when location mismatch, use the one from image file. */
+ acec_frag->location = img->image_loc[4];
+ }
+ }
+ }
+
+ em7d_frag->data = em7d->image;
+ em7d_frag->size = em7d->image_size;
+ /* em7d is the last firmware */
+ em7d_frag->location = img->image_loc[img->image_count - 1];
+ if (!em7d_frag->location)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int parse_sensor_fw(struct mei_device *dev, const struct firmware *fw)
+{
+ struct firmware_sign *ace_vis = NULL;
+ struct firmware_sign *ace_conf = NULL;
+ struct vsc_boot_img *img = (struct vsc_boot_img *)fw->data;
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+ struct fragment *acer_frag = &hw->fw.frags[ACER_IMG_TYPE];
+ struct fragment *acev_frag = &hw->fw.frags[ACEV_IMG_TYPE];
+ struct fragment *acec_frag = &hw->fw.frags[ACEC_IMG_TYPE];
+
+ if (!img || img->magic != VSC_FILE_MAGIC ||
+ img->image_count < IMG_ACEV_ACECNF ||
+ img->image_count > IMG_CNT_MAX)
+ return -EINVAL;
+
+ dev_dbg(dev->dev, "%s: img->image_count=%d\n", __func__,
+ img->image_count);
+
+ hw->fw.fw_cnt += img->image_count;
+ if (hw->fw.fw_cnt > IMG_CNT_MAX)
+ return -EINVAL;
+
+ ace_vis = (struct firmware_sign *)(img->image_loc + img->image_count);
+ ace_conf =
+ (struct firmware_sign *)(ace_vis->image + ace_vis->image_size);
+
+ dev_dbg(dev->dev,
+ "ACE vision signed magic number 0x%08x, image size 0x%08x\n",
+ ace_vis->magic, ace_vis->image_size);
+ if (ace_vis->magic != VSC_FW_MAGIC) {
+ dev_err(dev->dev,
+ "ACE vision signed magic error! magic number 0x%08x, image size 0x%08x\n",
+ ace_vis->magic, ace_vis->image_size);
+ return -EINVAL;
+ }
+
+ acev_frag->data = ace_vis->image;
+ acev_frag->size = ace_vis->image_size;
+ /* Align to 4K boundary */
+ acev_frag->location =
+ ((acer_frag->location + acer_frag->size + 0xFFF) & ~(0xFFF));
+ if (img->image_loc[0] && acer_frag->location != img->image_loc[0]) {
+ dev_err(dev->dev,
+ "ACE vision image location error. img->image_loc[0] = 0x%x, calculated is 0x%x\n",
+ img->image_loc[0], acev_frag->location);
+ /* when location mismatch, use the one from image file. */
+ acev_frag->location = img->image_loc[0];
+ }
+
+ dev_dbg(dev->dev,
+ "ACE config signed magic number 0x%08x, image size 0x%08x\n",
+ ace_conf->magic, ace_conf->image_size);
+ if (ace_conf->magic != VSC_FW_MAGIC) {
+ dev_err(dev->dev,
+ "ACE config signed magic error! magic number 0x%08x, image size 0x%08x\n",
+ ace_conf->magic, ace_conf->image_size);
+ return -EINVAL;
+ }
+
+ acec_frag->data = ace_conf->image;
+ acec_frag->size = ace_conf->image_size;
+ /* Align to 4K boundary */
+ acec_frag->location =
+ ((acev_frag->location + acev_frag->size + 0xFFF) & ~(0xFFF));
+ if (img->image_loc[1] && acec_frag->location != img->image_loc[1]) {
+ dev_err(dev->dev,
+ "ACE vision image location error. img->image_loc[1] = 0x%x, calculated is 0x%x\n",
+ img->image_loc[1], acec_frag->location);
+ /* when location mismatch, use the one from image file. */
+ acec_frag->location = img->image_loc[1];
+ }
+
+ return 0;
+}
+
+static int parse_sku_cnf_fw(struct mei_device *dev, const struct firmware *fw)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+ struct fragment *skucnf_frag = &hw->fw.frags[SKU_CONF_TYPE];
+
+ if (fw->size <= sizeof(u32))
+ return -EINVAL;
+
+ skucnf_frag->data = fw->data;
+ skucnf_frag->size = *((u32 *)fw->data) + sizeof(u32);
+ /* SKU config use fixed location */
+ skucnf_frag->location = SKU_CONFIG_LOC;
+ if (fw->size != skucnf_frag->size || fw->size > SKU_MAX_SIZE) {
+ dev_err(dev->dev,
+ "sku config file size is not config size + 4, config size = 0x%x, file size=0x%zx\n",
+ skucnf_frag->size, fw->size);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static u32 sum_CRC(void *data, int size)
+{
+ int i;
+ u32 crc = 0;
+
+ for (i = 0; i < size; i++)
+ crc += *((u8 *)data + i);
+
+ return crc;
+}
+
+static int load_boot(struct mei_device *dev, const void *data, int size)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+ struct vsc_rom_master_frame *frame =
+ (struct vsc_rom_master_frame *)hw->fw.tx_buf;
+ struct vsc_rom_slave_token *token =
+ (struct vsc_rom_slave_token *)hw->fw.rx_buf;
+ const u8 *ptr = data;
+ u32 remain;
+ int ret;
+
+ if (!data || !size)
+ return -EINVAL;
+
+ dev_dbg(dev->dev, "==== %s: image payload size : %d\n", __func__, size);
+ remain = size;
+ while (remain > 0) {
+ u32 max_len = sizeof(frame->data.dl_cont.payload);
+ u32 len = remain > max_len ? max_len : remain;
+
+ memset(frame, 0, sizeof(*frame));
+ memset(token, 0, sizeof(*token));
+ frame->magic = VSC_MAGIC_NUM;
+ frame->cmd = VSC_CMD_DL_CONT;
+
+ frame->data.dl_cont.len = (u16)len;
+ frame->data.dl_cont.end_flag = (remain == len ? 1 : 0);
+ memcpy(frame->data.dl_cont.payload, ptr, len);
+
+ ret = spi_rom_dev_xfer(hw, frame, NULL, VSC_ROM_SPI_PKG_SIZE);
+ if (ret) {
+ dev_err(dev->dev, "%s: transfer failed\n", __func__);
+ break;
+ }
+
+ ptr += len;
+ remain -= len;
+ }
+
+ return ret;
+}
+
+static int load_bootloader(struct mei_device *dev)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+ struct vsc_rom_master_frame *frame =
+ (struct vsc_rom_master_frame *)hw->fw.tx_buf;
+ struct vsc_rom_slave_token *token =
+ (struct vsc_rom_slave_token *)hw->fw.rx_buf;
+ struct fragment *fragment = &hw->fw.frags[BOOT_IMAGE_TYPE];
+ int ret;
+
+ if (!fragment->size)
+ return -EINVAL;
+
+ dev_dbg(dev->dev, "verify bootloader token ...\n");
+ frame->magic = VSC_MAGIC_NUM;
+ frame->cmd = VSC_CMD_QUERY;
+ ret = spi_rom_dev_xfer(hw, frame, token, VSC_ROM_SPI_PKG_SIZE);
+ if (ret)
+ return ret;
+
+ if (token->token != VSC_TOKEN_BOOTLOADER_REQ &&
+ token->token != VSC_TOKEN_DUMP_RESP) {
+ dev_err(dev->dev,
+ "failed to load bootloader, invalid token 0x%x\n",
+ token->token);
+ return -EINVAL;
+ }
+ dev_dbg(dev->dev, "bootloader token has been verified\n");
+
+ dev_dbg(dev->dev, "start download, image len: %u ...\n", fragment->size);
+ memset(frame, 0, sizeof(*frame));
+ memset(token, 0, sizeof(*token));
+
+ frame->magic = VSC_MAGIC_NUM;
+ frame->cmd = VSC_CMD_DL_START;
+ frame->data.dl_start.img_type = IMG_BOOTLOADER;
+ frame->data.dl_start.img_len = fragment->size;
+ frame->data.dl_start.img_loc = fragment->location;
+ frame->data.dl_start.option = (u16)hw->fw.fw_option;
+ frame->data.dl_start.crc =
+ sum_CRC(frame, (int)offsetof(struct vsc_rom_master_frame,
+ data.dl_start.crc));
+ ret = spi_rom_dev_xfer(hw, frame, NULL, VSC_ROM_SPI_PKG_SIZE);
+ if (ret)
+ return ret;
+
+ dev_dbg(dev->dev, "load bootloader payload ...\n");
+ ret = load_boot(dev, fragment->data, fragment->size);
+ if (ret)
+ dev_err(dev->dev, "failed to load bootloader, err : 0x%0x\n",
+ ret);
+
+ return ret;
+}
+
+static int load_fw_bin(struct mei_device *dev, const void *data, int size)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+ struct vsc_master_frame_fw_cont *frame =
+ (struct vsc_master_frame_fw_cont *)hw->fw.tx_buf;
+ struct vsc_bol_slave_token *token =
+ (struct vsc_bol_slave_token *)hw->fw.rx_buf;
+ const u8 *ptr = data;
+ int ret;
+ u32 remain;
+
+ if (!data || !size)
+ return -EINVAL;
+
+ dev_dbg(dev->dev, "==== %s: image payload size : %d\n", __func__, size);
+ remain = size;
+ while (remain > 0) {
+ u32 len = remain > FW_SPI_PKG_SIZE ? FW_SPI_PKG_SIZE : remain;
+
+ memset(frame, 0, sizeof(*frame));
+ memset(token, 0, sizeof(*token));
+ memcpy(frame->payload, ptr, len);
+
+ ret = spi_rom_dev_xfer(hw, frame, NULL, FW_SPI_PKG_SIZE);
+ if (ret) {
+ dev_err(dev->dev, "transfer failed\n");
+ break;
+ }
+
+ ptr += len;
+ remain -= len;
+ }
+
+ return ret;
+}
+
+static int load_fw_frag(struct mei_device *dev, struct fragment *frag, int type)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+ struct vsc_fw_master_frame *frame =
+ (struct vsc_fw_master_frame *)hw->fw.tx_buf;
+ struct vsc_bol_slave_token *token =
+ (struct vsc_bol_slave_token *)hw->rx_buf;
+ int ret;
+
+ dev_dbg(dev->dev,
+ "start download firmware type %d ... loc:0x%08x, size:0x%08x\n",
+ type, frag->location, frag->size);
+ memset(frame, 0, sizeof(*frame));
+ memset(token, 0, sizeof(*token));
+ frame->magic = VSC_MAGIC_NUM;
+ frame->cmd = VSC_CMD_DL_START;
+ frame->data.dl_start.img_type = type;
+ frame->data.dl_start.img_len = frag->size;
+ frame->data.dl_start.img_loc = frag->location;
+ frame->data.dl_start.option = (u16)hw->fw.fw_option;
+ frame->data.dl_start.crc = sum_CRC(
+ frame, offsetof(struct vsc_fw_master_frame, data.dl_start.crc));
+ ret = spi_rom_dev_xfer(hw, frame, NULL, FW_SPI_PKG_SIZE);
+ if (ret)
+ return ret;
+
+ return load_fw_bin(dev, frag->data, frag->size);
+}
+
+static int load_fw(struct mei_device *dev)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+ struct vsc_fw_master_frame *frame =
+ (struct vsc_fw_master_frame *)hw->fw.tx_buf;
+ struct vsc_bol_slave_token *token =
+ (struct vsc_bol_slave_token *)hw->rx_buf;
+ struct fragment *arcsem_frag = NULL;
+ struct fragment *em7d_frag = NULL;
+ struct fragment *acer_frag = NULL;
+ struct fragment *acev_frag = NULL;
+ struct fragment *acec_frag = NULL;
+ struct fragment *skucnf_frag = NULL;
+ int index = 0;
+ int ret;
+
+ if (hw->fw.frags[ARC_SEM_IMG_TYPE].size > 0)
+ arcsem_frag = &hw->fw.frags[ARC_SEM_IMG_TYPE];
+
+ if (hw->fw.frags[EM7D_IMG_TYPE].size > 0)
+ em7d_frag = &hw->fw.frags[EM7D_IMG_TYPE];
+
+ if (hw->fw.frags[ACER_IMG_TYPE].size > 0)
+ acer_frag = &hw->fw.frags[ACER_IMG_TYPE];
+
+ if (hw->fw.frags[ACEV_IMG_TYPE].size > 0)
+ acev_frag = &hw->fw.frags[ACEV_IMG_TYPE];
+
+ if (hw->fw.frags[ACEC_IMG_TYPE].size > 0)
+ acec_frag = &hw->fw.frags[ACEC_IMG_TYPE];
+
+ if (hw->fw.frags[SKU_CONF_TYPE].size > 0)
+ skucnf_frag = &hw->fw.frags[SKU_CONF_TYPE];
+
+ if (!arcsem_frag || !em7d_frag) {
+ dev_err(dev->dev, "invalid image or signature data\n");
+ return -EINVAL;
+ }
+
+ /* send dl_set frame */
+ dev_dbg(dev->dev, "send dl_set frame ...\n");
+ memset(frame, 0, sizeof(*frame));
+ memset(token, 0, sizeof(*token));
+
+ frame->magic = VSC_MAGIC_NUM;
+ frame->cmd = VSC_CMD_DL_SET;
+ frame->data.dl_set.option = (u16)hw->fw.fw_option;
+ frame->data.dl_set.img_cnt = (u8)hw->fw.fw_cnt;
+ dev_dbg(dev->dev, "%s: img_cnt = %d ...\n", __func__,
+ frame->data.dl_set.img_cnt);
+
+ frame->data.dl_set.payload[index++] = arcsem_frag->location;
+ frame->data.dl_set.payload[index++] = arcsem_frag->size;
+ if (acer_frag) {
+ frame->data.dl_set.payload[index++] = acer_frag->location;
+ frame->data.dl_set.payload[index++] = acer_frag->size;
+ if (acev_frag) {
+ frame->data.dl_set.payload[index++] =
+ acev_frag->location;
+ frame->data.dl_set.payload[index++] = acev_frag->size;
+ }
+ if (acec_frag) {
+ frame->data.dl_set.payload[index++] =
+ acec_frag->location;
+ frame->data.dl_set.payload[index++] = acec_frag->size;
+ }
+ }
+ frame->data.dl_set.payload[index++] = em7d_frag->location;
+ frame->data.dl_set.payload[index++] = em7d_frag->size;
+ frame->data.dl_set.payload[hw->fw.fw_cnt * 2] = sum_CRC(
+ frame, (int)offsetof(struct vsc_fw_master_frame,
+ data.dl_set.payload[hw->fw.fw_cnt * 2]));
+
+ ret = spi_rom_dev_xfer(hw, frame, NULL, FW_SPI_PKG_SIZE);
+ if (ret)
+ return ret;
+
+ /* load ARC-SEM FW image */
+ if (arcsem_frag) {
+ ret = load_fw_frag(dev, arcsem_frag, IMG_ARCSEM);
+ if (ret)
+ return ret;
+ }
+
+ /* load ACE FW image */
+ if (acer_frag) {
+ ret = load_fw_frag(dev, acer_frag, IMG_ACE_RUNTIME);
+ if (ret)
+ return ret;
+ }
+
+ if (acev_frag) {
+ ret = load_fw_frag(dev, acev_frag, IMG_ACE_VISION);
+ if (ret)
+ return ret;
+ }
+
+ if (acec_frag) {
+ ret = load_fw_frag(dev, acec_frag, IMG_ACE_CONFIG);
+ if (ret)
+ return ret;
+ }
+
+ /* load EM7D FW image */
+ if (em7d_frag) {
+ ret = load_fw_frag(dev, em7d_frag, IMG_EM7D);
+ if (ret)
+ return ret;
+ }
+
+ /* load SKU Config */
+ if (skucnf_frag) {
+ ret = load_fw_frag(dev, skucnf_frag, IMG_SKU_CONFIG);
+ if (ret)
+ return ret;
+ }
+
+ memset(frame, 0, sizeof(*frame));
+ frame->magic = VSC_MAGIC_NUM;
+ frame->cmd = VSC_TOKEN_CAM_BOOT;
+ frame->data.boot.check_sum = sum_CRC(
+ frame, offsetof(struct vsc_fw_master_frame, data.dl_start.crc));
+ ret = spi_rom_dev_xfer(hw, frame, NULL, FW_SPI_PKG_SIZE);
+ if (ret)
+ dev_err(dev->dev, "failed to boot fw, err : 0x%x\n", ret);
+
+ return ret;
+}
+
+static int init_hw(struct mei_device *dev)
+{
+ int ret;
+ const struct firmware *fw = NULL;
+ const struct firmware *sensor_fw = NULL;
+ const struct firmware *sku_cnf_fw = NULL;
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+
+ ret = check_silicon(dev);
+ if (ret)
+ return ret;
+
+ dev_dbg(dev->dev,
+ "%s: FW files. Firmware Boot File: %s, Sensor FW File: %s, Sku Config File: %s\n",
+ __func__, hw->fw.fw_file_name, hw->fw.sensor_file_name,
+ hw->fw.sku_cnf_file_name);
+ ret = request_firmware(&fw, hw->fw.fw_file_name, dev->dev);
+ if (ret < 0 || !fw) {
+ dev_err(&hw->spi->dev, "file not found %s\n",
+ hw->fw.fw_file_name);
+ return ret;
+ }
+
+ ret = parse_main_fw(dev, fw);
+ if (ret || !fw) {
+ dev_err(&hw->spi->dev, "parse fw %s failed\n",
+ hw->fw.fw_file_name);
+ goto release;
+ }
+
+ if (hw->fw.fw_cnt < IMG_ARC_ACER_ACEV_ACECNF_EM7D) {
+ ret = request_firmware(&sensor_fw, hw->fw.sensor_file_name,
+ dev->dev);
+ if (ret < 0 || !sensor_fw) {
+ dev_err(&hw->spi->dev, "file not found %s\n",
+ hw->fw.sensor_file_name);
+ goto release;
+ }
+ ret = parse_sensor_fw(dev, sensor_fw);
+ if (ret) {
+ dev_err(&hw->spi->dev, "parse fw %s failed\n",
+ hw->fw.sensor_file_name);
+ goto release_sensor;
+ }
+ }
+
+ ret = request_firmware(&sku_cnf_fw, hw->fw.sku_cnf_file_name, dev->dev);
+ if (ret < 0 || !sku_cnf_fw) {
+ dev_err(&hw->spi->dev, "file not found %s\n",
+ hw->fw.sku_cnf_file_name);
+ goto release_sensor;
+ }
+
+ ret = parse_sku_cnf_fw(dev, sku_cnf_fw);
+ if (ret) {
+ dev_err(&hw->spi->dev, "parse fw %s failed\n",
+ hw->fw.sensor_file_name);
+ goto release_cnf;
+ }
+
+ ret = load_bootloader(dev);
+ if (ret)
+ goto release_cnf;
+
+ ret = load_fw(dev);
+ if (ret)
+ goto release_cnf;
+
+ return 0;
+
+release_cnf:
+ release_firmware(sku_cnf_fw);
+release_sensor:
+ release_firmware(sensor_fw);
+release:
+ release_firmware(fw);
+ return ret;
+}
+
+/**
+ * mei_vsc_fw_status - read fw status register from pci config space
+ *
+ * @dev: mei device
+ * @fw_status: fw status
+ *
+ * Return: 0 on success, error otherwise
+ */
+static int mei_vsc_fw_status(struct mei_device *dev,
+ struct mei_fw_status *fw_status)
+{
+ if (!fw_status)
+ return -EINVAL;
+
+ fw_status->count = 0;
+ return 0;
+}
+
+/**
+ * mei_vsc_pg_state - translate internal pg state
+ * to the mei power gating state
+ *
+ * @dev: mei device
+ *
+ * Return: MEI_PG_OFF if aliveness is on and MEI_PG_ON otherwise
+ */
+static inline enum mei_pg_state mei_vsc_pg_state(struct mei_device *dev)
+{
+ return MEI_PG_OFF;
+}
+
+/**
+ * mei_vsc_intr_enable - enables mei device interrupts
+ *
+ * @dev: the device structure
+ */
+static void mei_vsc_intr_enable(struct mei_device *dev)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+
+ enable_irq(hw->wakeuphostint);
+}
+
+/**
+ * mei_vsc_intr_disable - disables mei device interrupts
+ *
+ * @dev: the device structure
+ */
+static void mei_vsc_intr_disable(struct mei_device *dev)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+
+ disable_irq(hw->wakeuphostint);
+}
+
+/**
+ * mei_vsc_intr_clear - clear and stop interrupts
+ *
+ * @dev: the device structure
+ */
+static void mei_vsc_intr_clear(struct mei_device *dev)
+{
+ ;
+}
+
+/**
+ * mei_vsc_synchronize_irq - wait for pending IRQ handlers
+ *
+ * @dev: the device structure
+ */
+static void mei_vsc_synchronize_irq(struct mei_device *dev)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+
+ synchronize_irq(hw->wakeuphostint);
+}
+
+/**
+ * mei_vsc_hw_config - configure hw dependent settings
+ *
+ * @dev: mei device
+ *
+ * Return:
+ * * -EINVAL when read_fws is not set
+ * * 0 on success
+ *
+ */
+static int mei_vsc_hw_config(struct mei_device *dev)
+{
+ return 0;
+}
+
+/**
+ * mei_vsc_host_set_ready - enable device
+ *
+ * @dev: mei device
+ */
+static void mei_vsc_host_set_ready(struct mei_device *dev)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+
+ hw->host_ready = true;
+}
+
+/**
+ * mei_vsc_host_is_ready - check whether the host has turned ready
+ *
+ * @dev: mei device
+ * Return: bool
+ */
+static bool mei_vsc_host_is_ready(struct mei_device *dev)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+
+ return hw->host_ready;
+}
+
+/**
+ * mei_vsc_hw_is_ready - check whether the me(hw) has turned ready
+ *
+ * @dev: mei device
+ * Return: bool
+ */
+static bool mei_vsc_hw_is_ready(struct mei_device *dev)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+
+ return hw->fw_ready;
+}
+
+/**
+ * mei_vsc_hw_start - hw start routine
+ *
+ * @dev: mei device
+ * Return: 0 on success, error otherwise
+ */
+#define MEI_SPI_START_TIMEOUT 200
+static int mei_vsc_hw_start(struct mei_device *dev)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+ u8 buf;
+ int len;
+ int ret;
+ int timeout = MEI_SPI_START_TIMEOUT;
+
+ mei_vsc_host_set_ready(dev);
+ atomic_set(&hw->lock_cnt, 0);
+ mei_vsc_intr_enable(dev);
+
+ /* wait for FW ready */
+ while (timeout > 0) {
+ msleep(50);
+ timeout -= 50;
+ ret = mei_vsc_read_raw(hw, &buf, sizeof(buf), &len);
+ if (!ret && ret != -EAGAIN)
+ break;
+ }
+
+ if (timeout <= 0)
+ return -ENODEV;
+
+ dev_dbg(dev->dev, "hw is ready\n");
+ hw->fw_ready = true;
+ return 0;
+}
+
+/**
+ * mei_vsc_hbuf_is_ready - checks if host buf is empty.
+ *
+ * @dev: the device structure
+ *
+ * Return: true if empty, false - otherwise.
+ */
+static bool mei_vsc_hbuf_is_ready(struct mei_device *dev)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+
+ return hw->write_lock_cnt == 0;
+}
+
+/**
+ * mei_vsc_hbuf_empty_slots - counts write empty slots.
+ *
+ * @dev: the device structure
+ *
+ * Return: empty slots count
+ */
+static int mei_vsc_hbuf_empty_slots(struct mei_device *dev)
+{
+ return MAX_MEI_MSG_SIZE / MEI_SLOT_SIZE;
+}
+
+/**
+ * mei_vsc_hbuf_depth - returns depth of the hw buf.
+ *
+ * @dev: the device structure
+ *
+ * Return: size of hw buf in slots
+ */
+static u32 mei_vsc_hbuf_depth(const struct mei_device *dev)
+{
+ return MAX_MEI_MSG_SIZE / MEI_SLOT_SIZE;
+}
+
+/**
+ * mei_vsc_write - writes a message to FW.
+ *
+ * @dev: the device structure
+ * @hdr: header of message
+ * @hdr_len: header length in bytes: must be multiplication of a slot (4bytes)
+ * @data: payload
+ * @data_len: payload length in bytes
+ *
+ * Return: 0 if success, < 0 - otherwise.
+ */
+static int mei_vsc_write(struct mei_device *dev, const void *hdr,
+ size_t hdr_len, const void *data, size_t data_len)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+ int ret;
+ char *buf = hw->tx_buf;
+
+ if (WARN_ON(!hdr || !data || hdr_len & 0x3 ||
+ data_len > MAX_SPI_MSG_SIZE)) {
+ dev_err(dev->dev,
+ "%s error write msg hdr_len %zu data_len %zu\n",
+ __func__, hdr_len, data_len);
+ return -EINVAL;
+ }
+
+ hw->write_lock_cnt++;
+ memcpy(buf, hdr, hdr_len);
+ memcpy(buf + hdr_len, data, data_len);
+ dev_dbg(dev->dev, "%s %d" MEI_HDR_FMT, __func__, hw->write_lock_cnt,
+ MEI_HDR_PRM((struct mei_msg_hdr *)hdr));
+
+ ret = mei_vsc_write_raw(hw, buf, hdr_len + data_len);
+ if (ret)
+ dev_err(dev->dev, MEI_HDR_FMT "hdr_len %zu data len %zu\n",
+ MEI_HDR_PRM((struct mei_msg_hdr *)hdr), hdr_len,
+ data_len);
+
+ hw->write_lock_cnt--;
+ return ret;
+}
+
+/**
+ * mei_vsc_read
+ * read spi message
+ *
+ * @dev: the device structure
+ *
+ * Return: mei hdr value (u32)
+ */
+static inline u32 mei_vsc_read(const struct mei_device *dev)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+ int ret;
+
+ ret = mei_vsc_read_raw(hw, hw->rx_buf, sizeof(hw->rx_buf), &hw->rx_len);
+ if (ret || hw->rx_len < sizeof(u32))
+ return 0;
+
+ return *(u32 *)hw->rx_buf;
+}
+
+/**
+ * mei_vsc_count_full_read_slots - counts read full slots.
+ *
+ * @dev: the device structure
+ *
+ * Return: -EOVERFLOW if overflow, otherwise filled slots count
+ */
+static int mei_vsc_count_full_read_slots(struct mei_device *dev)
+{
+ return MAX_MEI_MSG_SIZE / MEI_SLOT_SIZE;
+}
+
+/**
+ * mei_vsc_read_slots - reads a message from mei device.
+ *
+ * @dev: the device structure
+ * @buf: message buf will be written
+ * @len: message size will be read
+ *
+ * Return: always 0
+ */
+static int mei_vsc_read_slots(struct mei_device *dev, unsigned char *buf,
+ unsigned long len)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+ struct mei_msg_hdr *hdr;
+
+ hdr = (struct mei_msg_hdr *)hw->rx_buf;
+ WARN_ON(len != hdr->length || hdr->length + sizeof(*hdr) != hw->rx_len);
+ memcpy(buf, hw->rx_buf + sizeof(*hdr), len);
+ return 0;
+}
+
+/**
+ * mei_vsc_pg_in_transition - is device now in pg transition
+ *
+ * @dev: the device structure
+ *
+ * Return: true if in pg transition, false otherwise
+ */
+static bool mei_vsc_pg_in_transition(struct mei_device *dev)
+{
+ return dev->pg_event >= MEI_PG_EVENT_WAIT &&
+ dev->pg_event <= MEI_PG_EVENT_INTR_WAIT;
+}
+
+/**
+ * mei_vsc_pg_is_enabled - detect if PG is supported by HW
+ *
+ * @dev: the device structure
+ *
+ * Return: true is pg supported, false otherwise
+ */
+static bool mei_vsc_pg_is_enabled(struct mei_device *dev)
+{
+ return false;
+}
+
+/**
+ * mei_vsc_hw_reset - resets fw.
+ *
+ * @dev: the device structure
+ * @intr_enable: if interrupt should be enabled after reset.
+ *
+ * Return: 0 on success an error code otherwise
+ */
+static int mei_vsc_hw_reset(struct mei_device *dev, bool intr_enable)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+ int ret;
+
+ mei_vsc_intr_disable(dev);
+ ret = vsc_reset(dev);
+ if (ret)
+ return ret;
+
+ if (hw->disconnect)
+ return 0;
+
+ ret = init_hw(dev);
+ if (ret)
+ return -ENODEV;
+
+ hw->seq = 0;
+ return 0;
+}
+
+/**
+ * mei_vsc_irq_quick_handler - The ISR of the MEI device
+ *
+ * @irq: The irq number
+ * @dev_id: pointer to the device structure
+ *
+ * Return: irqreturn_t
+ */
+irqreturn_t mei_vsc_irq_quick_handler(int irq, void *dev_id)
+{
+ struct mei_device *dev = (struct mei_device *)dev_id;
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+
+ dev_dbg(dev->dev, "interrupt top half lock_cnt %d state %d\n",
+ atomic_read(&hw->lock_cnt), dev->dev_state);
+
+ atomic_inc(&hw->lock_cnt);
+ wake_up(&hw->xfer_wait);
+ if (dev->dev_state == MEI_DEV_INITIALIZING ||
+ dev->dev_state == MEI_DEV_RESETTING)
+ return IRQ_HANDLED;
+
+ return IRQ_WAKE_THREAD;
+}
+
+/**
+ * mei_vsc_irq_thread_handler - function called after ISR to handle the interrupt
+ * processing.
+ *
+ * @irq: The irq number
+ * @dev_id: pointer to the device structure
+ *
+ * Return: irqreturn_t
+ *
+ */
+irqreturn_t mei_vsc_irq_thread_handler(int irq, void *dev_id)
+{
+ struct mei_device *dev = (struct mei_device *)dev_id;
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+ struct list_head cmpl_list;
+ s32 slots;
+ int rets = 0;
+
+ dev_dbg(dev->dev,
+ "function called after ISR to handle the interrupt processing dev->dev_state=%d.\n",
+ dev->dev_state);
+
+ /* initialize our complete list */
+ mutex_lock(&dev->device_lock);
+ INIT_LIST_HEAD(&cmpl_list);
+
+ /* check slots available for reading */
+ slots = mei_count_full_read_slots(dev);
+ dev_dbg(dev->dev, "slots to read = %08x\n", slots);
+
+reread:
+ while (spi_need_read(hw)) {
+ dev_dbg(dev->dev, "slots to read in = %08x\n", slots);
+ rets = mei_irq_read_handler(dev, &cmpl_list, &slots);
+ /* There is a race between ME write and interrupt delivery:
+ * Not all data is always available immediately after the
+ * interrupt, so try to read again on the next interrupt.
+ */
+ if (rets == -ENODATA)
+ break;
+
+ if (rets && (dev->dev_state != MEI_DEV_RESETTING &&
+ dev->dev_state != MEI_DEV_POWER_DOWN)) {
+ dev_err(dev->dev, "mei_irq_read_handler ret = %d.\n",
+ rets);
+ schedule_work(&dev->reset_work);
+ goto end;
+ }
+ }
+ dev_dbg(dev->dev, "slots to read out = %08x\n", slots);
+
+ dev->hbuf_is_ready = mei_hbuf_is_ready(dev);
+ rets = mei_irq_write_handler(dev, &cmpl_list);
+
+ dev->hbuf_is_ready = mei_hbuf_is_ready(dev);
+ mei_irq_compl_handler(dev, &cmpl_list);
+
+ if (spi_need_read(hw))
+ goto reread;
+
+end:
+ dev_dbg(dev->dev, "interrupt thread end ret = %d\n", rets);
+ mutex_unlock(&dev->device_lock);
+ return IRQ_HANDLED;
+}
+
+static const struct mei_hw_ops mei_vsc_hw_ops = {
+
+ .fw_status = mei_vsc_fw_status,
+ .pg_state = mei_vsc_pg_state,
+
+ .host_is_ready = mei_vsc_host_is_ready,
+
+ .hw_is_ready = mei_vsc_hw_is_ready,
+ .hw_reset = mei_vsc_hw_reset,
+ .hw_config = mei_vsc_hw_config,
+ .hw_start = mei_vsc_hw_start,
+
+ .pg_in_transition = mei_vsc_pg_in_transition,
+ .pg_is_enabled = mei_vsc_pg_is_enabled,
+
+ .intr_clear = mei_vsc_intr_clear,
+ .intr_enable = mei_vsc_intr_enable,
+ .intr_disable = mei_vsc_intr_disable,
+ .synchronize_irq = mei_vsc_synchronize_irq,
+
+ .hbuf_free_slots = mei_vsc_hbuf_empty_slots,
+ .hbuf_is_ready = mei_vsc_hbuf_is_ready,
+ .hbuf_depth = mei_vsc_hbuf_depth,
+ .write = mei_vsc_write,
+
+ .rdbuf_full_slots = mei_vsc_count_full_read_slots,
+ .read_hdr = mei_vsc_read,
+ .read = mei_vsc_read_slots
+};
+
+/**
+ * mei_vsc_dev_init - allocates and initializes the mei device structure
+ *
+ * @parent: device associated with physical device (spi/platform)
+ *
+ * Return: The mei_device pointer on success, NULL on failure.
+ */
+struct mei_device *mei_vsc_dev_init(struct device *parent)
+{
+ struct mei_device *dev;
+ struct mei_vsc_hw *hw;
+
+ dev = devm_kzalloc(parent, sizeof(*dev) + sizeof(*hw), GFP_KERNEL);
+ if (!dev)
+ return NULL;
+
+ mei_device_init(dev, parent, &mei_vsc_hw_ops);
+ dev->fw_f_fw_ver_supported = 0;
+ dev->kind = 0;
+ return dev;
+}
diff --git a/drivers/misc/mei/hw-vsc.h b/drivers/misc/mei/hw-vsc.h
new file mode 100644
index 0000000000000..0bdc879e5ca49
--- /dev/null
+++ b/drivers/misc/mei/hw-vsc.h
@@ -0,0 +1,378 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2021, Intel Corporation. All rights reserved.
+ * Intel Management Engine Interface (Intel MEI) Linux driver
+ */
+
+#ifndef _MEI_HW_SPI_H_
+#define _MEI_HW_SPI_H_
+
+#include <linux/irqreturn.h>
+#include <linux/spi/spi.h>
+#include <linux/mei.h>
+#include <linux/types.h>
+
+#include "mei_dev.h"
+#include "client.h"
+
+struct mei_cfg {
+ const struct mei_fw_status fw_status;
+ const char *kind;
+ u32 fw_ver_supported : 1;
+ u32 hw_trc_supported : 1;
+};
+
+enum FRAG_TYPE {
+ BOOT_IMAGE_TYPE,
+ ARC_SEM_IMG_TYPE,
+ EM7D_IMG_TYPE,
+ ACER_IMG_TYPE,
+ ACEV_IMG_TYPE,
+ ACEC_IMG_TYPE,
+ SKU_CONF_TYPE,
+ FRAGMENT_TYPE_MAX,
+};
+
+struct fragment {
+ enum FRAG_TYPE type;
+ u32 location;
+ const u8 *data;
+ u32 size;
+};
+
+irqreturn_t mei_vsc_irq_quick_handler(int irq, void *dev_id);
+irqreturn_t mei_vsc_irq_thread_handler(int irq, void *dev_id);
+struct mei_device *mei_vsc_dev_init(struct device *parent);
+
+#define VSC_MAGIC_NUM 0x49505343
+#define VSC_FILE_MAGIC 0x46564353
+#define VSC_FW_MAGIC 0x49574653
+#define VSC_ROM_SPI_PKG_SIZE 256
+#define FW_SPI_PKG_SIZE 512
+
+#define IMG_MAX_LOC (0x50FFFFFF)
+#define FW_MAX_SIZE (0x200000)
+#define SKU_CONFIG_LOC (0x5001A000)
+#define SKU_MAX_SIZE (4100)
+
+#define IMG_DMA_ENABLE_OPTION (1 << 0)
+
+#define SIG_SIZE 384
+#define PUBKEY_SIZE 384
+#define CSSHEADER_SIZE 128
+
+#define VSC_CMD_QUERY 0
+#define VSC_CMD_DL_SET 1
+#define VSC_CMD_DL_START 2
+#define VSC_CMD_DL_CONT 3
+#define VSC_CMD_DUMP_MEM 4
+#define VSC_CMD_SET_REG 5
+#define VSC_CMD_PRINT_ROM_VERSION 6
+#define VSC_CMD_WRITE_FLASH 7
+#define VSC_CMD_RESERVED 8
+
+enum IMAGE_TYPE {
+ IMG_DEBUG,
+ IMG_BOOTLOADER,
+ IMG_EM7D,
+ IMG_ARCSEM,
+ IMG_ACE_RUNTIME,
+ IMG_ACE_VISION,
+ IMG_ACE_CONFIG,
+ IMG_SKU_CONFIG
+};
+
+/*image count define, refer to Clover Fall Boot ROM HLD 1.0*/
+#define IMG_ACEV_ACECNF 2
+#define IMG_BOOT_ARC_EM7D 3
+#define IMG_BOOT_ARC_ACER_EM7D 4
+#define IMG_BOOT_ARC_ACER_ACEV_EM7D 5
+#define IMG_BOOT_ARC_ACER_ACEV_ACECNF_EM7D 6
+#define IMG_ARC_ACER_ACEV_ACECNF_EM7D (IMG_BOOT_ARC_ACER_ACEV_ACECNF_EM7D - 1)
+#define IMG_CNT_MAX IMG_BOOT_ARC_ACER_ACEV_ACECNF_EM7D
+
+#define VSC_TOKEN_BOOTLOADER_REQ 1
+#define VSC_TOKEN_FIRMWARE_REQ 2
+#define VSC_TOKEN_DOWNLOAD_CONT 3
+#define VSC_TOKEN_DUMP_RESP 4
+#define VSC_TOKEN_DUMP_CONT 5
+#define VSC_TOKEN_SKU_CONFIG_REQ 6
+#define VSC_TOKEN_ERROR 7
+#define VSC_TOKEN_DUMMY 8
+#define VSC_TOKEN_CAM_STATUS_RESP 9
+#define VSC_TOKEN_CAM_BOOT 10
+
+#define MAX_SVN_VALUE (0xFFFFFFFE)
+
+#define EFUSE1_ADDR (0xE0030000 + 0x38)
+#define STRAP_ADDR (0xE0030000 + 0x100)
+
+#define SI_MAINSTEPPING_VERSION_OFFSET (4)
+#define SI_MAINSTEPPING_VERSION_MASK (0xF)
+#define SI_MAINSTEPPING_VERSION_A (0x0)
+#define SI_MAINSTEPPING_VERSION_B (0x1)
+#define SI_MAINSTEPPING_VERSION_C (0x2)
+
+#define SI_SUBSTEPPING_VERSION_OFFSET (0x0)
+#define SI_SUBSTEPPING_VERSION_MASK (0xF)
+#define SI_SUBSTEPPING_VERSION_0 (0x0)
+#define SI_SUBSTEPPING_VERSION_0_PRIME (0x1)
+#define SI_SUBSTEPPING_VERSION_1 (0x2)
+#define SI_SUBSTEPPING_VERSION_1_PRIME (0x3)
+
+#define SI_STRAP_KEY_SRC_OFFSET (16)
+#define SI_STRAP_KEY_SRC_MASK (0x1)
+
+#define SI_STRAP_KEY_SRC_DEBUG (0x0)
+#define SI_STRAP_KEY_SRC_PRODUCT (0x1)
+
+struct vsc_rom_master_frame {
+ u32 magic;
+ u8 cmd;
+ union {
+ struct {
+ u8 img_type;
+ u16 option;
+ u32 img_len;
+ u32 img_loc;
+ u32 crc;
+ u8 res[0];
+ } __packed dl_start;
+ struct {
+ u8 option;
+ u16 img_cnt;
+ u32 payload[(VSC_ROM_SPI_PKG_SIZE - 8) / 4];
+ } __packed dl_set;
+ struct {
+ u8 end_flag;
+ u16 len;
+ u8 payload[VSC_ROM_SPI_PKG_SIZE - 8];
+ } __packed dl_cont;
+ struct {
+ u8 res;
+ u16 len;
+ u32 addr;
+#define ROM_DUMP_MEM_RESERVE_SIZE 12
+ u8 payload[VSC_ROM_SPI_PKG_SIZE -
+ ROM_DUMP_MEM_RESERVE_SIZE];
+ } __packed dump_mem;
+ struct {
+ u8 res[3];
+ u32 addr;
+ u32 val;
+#define ROM_SET_REG_RESERVE_SIZE 16
+ u8 payload[VSC_ROM_SPI_PKG_SIZE -
+ ROM_SET_REG_RESERVE_SIZE];
+ } __packed set_reg;
+ struct {
+ u8 ins[0];
+ } __packed undoc_f1;
+ struct {
+ u32 addr;
+ u32 len;
+ u8 payload[0];
+ } __packed os_dump_mem;
+ u8 reserve[VSC_ROM_SPI_PKG_SIZE - 5];
+ } data;
+} __packed;
+
+struct vsc_fw_master_frame {
+ u32 magic;
+ u8 cmd;
+ union {
+ struct {
+ u16 option;
+ u8 img_type;
+ u32 img_len;
+ u32 img_loc;
+ u32 crc;
+ u8 res[0];
+ } __packed dl_start;
+ struct {
+ u16 option;
+ u8 img_cnt;
+ u32 payload[(FW_SPI_PKG_SIZE - 8) / 4];
+ } __packed dl_set;
+ struct {
+ u8 end_flag;
+ u16 len;
+ u8 payload[FW_SPI_PKG_SIZE - 8];
+ } __packed dl_cont;
+ struct {
+ u32 addr;
+ u8 len;
+ u8 payload[0];
+ } __packed dump_mem;
+ struct {
+ u32 addr;
+ u32 val;
+ u8 payload[0];
+ } __packed set_reg;
+ struct {
+ u8 ins[0];
+ } __packed undoc_f1;
+ struct {
+ u32 addr;
+ u32 len;
+ u8 payload[0];
+ } __packed os_dump_mem;
+ struct {
+ u8 resv[3];
+ u32 check_sum;
+#define LOADER_BOOT_RESERVE_SIZE 12
+ u8 payload[FW_SPI_PKG_SIZE - LOADER_BOOT_RESERVE_SIZE];
+ } __packed boot;
+ u8 reserve[FW_SPI_PKG_SIZE - 5];
+ } data;
+} __packed;
+
+struct vsc_master_frame_fw_cont {
+ u8 payload[FW_SPI_PKG_SIZE];
+} __packed;
+
+struct vsc_rom_slave_token {
+ u32 magic;
+ u8 token;
+ u8 type;
+ u8 res[2];
+ u8 payload[VSC_ROM_SPI_PKG_SIZE - 8];
+} __packed;
+
+struct vsc_bol_slave_token {
+ u32 magic;
+ u8 token;
+ u8 type;
+ u8 res[2];
+ u8 payload[FW_SPI_PKG_SIZE - 8];
+} __packed;
+
+struct vsc_boot_img {
+ u32 magic;
+ u32 option;
+ u32 image_count;
+ u32 image_loc[IMG_CNT_MAX];
+} __packed;
+
+struct vsc_sensor_img_t {
+ u32 magic;
+ u32 option;
+ u32 image_count;
+ u32 image_loc[IMG_ACEV_ACECNF];
+} __packed;
+
+struct bootloader_sign {
+ u32 magic;
+ u32 image_size;
+ u8 image[0];
+} __packed;
+
+struct manifest {
+ u32 svn;
+ u32 header_ver;
+ u32 comp_flags;
+ u32 comp_name;
+ u32 comp_vendor_name;
+ u32 module_size;
+ u32 module_addr;
+} __packed;
+
+struct firmware_sign {
+ u32 magic;
+ u32 image_size;
+ u8 image[1];
+} __packed;
+
+/* spi transport layer */
+#define PACKET_SYNC 0x31
+#define MAX_SPI_MSG_SIZE 2048
+#define MAX_MEI_MSG_SIZE 512
+
+#define CRC_SIZE sizeof(u32)
+#define PACKET_SIZE(pkt) (sizeof(pkt->hdr) + (pkt->hdr.len) + (CRC_SIZE))
+#define MAX_PACKET_SIZE \
+ (sizeof(struct spi_xfer_hdr) + MAX_SPI_MSG_SIZE + (CRC_SIZE))
+
+/* SPI xfer timeout size definition */
+#define XFER_TIMEOUT_BYTES 700
+#define MAX_XFER_BUFFER_SIZE ((MAX_PACKET_SIZE) + (XFER_TIMEOUT_BYTES))
+
+struct spi_xfer_hdr {
+ u8 sync;
+ u8 cmd;
+ u16 len;
+ u32 seq;
+} __packed;
+
+struct spi_xfer_packet {
+ struct spi_xfer_hdr hdr;
+ u8 buf[MAX_XFER_BUFFER_SIZE - sizeof(struct spi_xfer_hdr)];
+} __packed;
+
+#define CMD_SPI_WRITE 0x01
+#define CMD_SPI_READ 0x02
+#define CMD_SPI_RESET_NOTIFY 0x04
+
+#define CMD_SPI_ACK 0x10
+#define CMD_SPI_NACK 0x11
+#define CMD_SPI_BUSY 0x12
+#define CMD_SPI_FATAL_ERR 0x13
+
+struct host_timestamp {
+ u64 realtime;
+ u64 boottime;
+} __packed;
+
+struct vsc_boot_fw {
+ u32 main_ver;
+ u32 sub_ver;
+ u32 key_src;
+ u32 svn;
+
+ u8 tx_buf[FW_SPI_PKG_SIZE];
+ u8 rx_buf[FW_SPI_PKG_SIZE];
+
+ /* FirmwareBootFile */
+ char fw_file_name[256];
+ /* PkgBootFile */
+ char sensor_file_name[256];
+ /* SkuConfigBootFile */
+ char sku_cnf_file_name[256];
+
+ u32 fw_option;
+ u32 fw_cnt;
+ struct fragment frags[FRAGMENT_TYPE_MAX];
+};
+
+struct mei_vsc_hw {
+ struct spi_device *spi;
+ struct spi_transfer xfer;
+ struct spi_message msg;
+ u8 rx_buf[MAX_SPI_MSG_SIZE];
+ u8 tx_buf[MAX_SPI_MSG_SIZE];
+ u32 rx_len;
+
+ int wakeuphostint;
+ struct gpio_desc *wakeuphost;
+ struct gpio_desc *resetfw;
+ struct gpio_desc *wakeupfw;
+
+ struct vsc_boot_fw fw;
+ bool host_ready;
+ bool fw_ready;
+
+ /* mei transport layer */
+ u32 seq;
+ u8 tx_buf1[MAX_XFER_BUFFER_SIZE];
+ u8 rx_buf1[MAX_XFER_BUFFER_SIZE];
+
+ struct mutex mutex;
+ bool disconnect;
+ atomic_t lock_cnt;
+ int write_lock_cnt;
+ wait_queue_head_t xfer_wait;
+ char cam_sensor_name[32];
+};
+
+#define to_vsc_hw(dev) ((struct mei_vsc_hw *)((dev)->hw))
+
+#endif
diff --git a/drivers/misc/mei/spi-vsc.c b/drivers/misc/mei/spi-vsc.c
new file mode 100644
index 0000000000000..f759006179af5
--- /dev/null
+++ b/drivers/misc/mei/spi-vsc.c
@@ -0,0 +1,293 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2021, Intel Corporation. All rights reserved.
+ * Intel Management Engine Interface (Intel MEI) Linux driver
+ */
+#include <linux/acpi.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/mei.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/spi/spi.h>
+
+#include "client.h"
+#include "hw-vsc.h"
+#include "mei_dev.h"
+
+#define CVFD_ACPI_ID_TGL "INTC1059"
+#define CVFD_ACPI_ID_ADL "INTC1095"
+#define LINK_NUMBER (1)
+#define METHOD_NAME_SID "SID"
+
+/* gpio resources */
+static const struct acpi_gpio_params wakeuphost_gpio = { 0, 0, false };
+static const struct acpi_gpio_params wakeuphostint_gpio = { 1, 0, false };
+static const struct acpi_gpio_params resetfw_gpio = { 2, 0, false };
+static const struct acpi_gpio_params wakeupfw = { 3, 0, false };
+static const struct acpi_gpio_mapping mei_vsc_acpi_gpios[] = {
+ { "wakeuphost-gpios", &wakeuphost_gpio, 1 },
+ { "wakeuphostint-gpios", &wakeuphostint_gpio, 1 },
+ { "resetfw-gpios", &resetfw_gpio, 1 },
+ { "wakeupfw-gpios", &wakeupfw, 1 },
+ {}
+};
+
+static struct acpi_device *find_cvfd_child_adev(struct acpi_device *parent)
+{
+ struct acpi_device *adev;
+
+ if (!parent)
+ return NULL;
+
+ list_for_each_entry (adev, &parent->children, node) {
+ if (!strcmp(CVFD_ACPI_ID_TGL, acpi_device_hid(adev)) ||
+ !strcmp(CVFD_ACPI_ID_ADL, acpi_device_hid(adev)))
+ return adev;
+ }
+
+ return NULL;
+}
+
+static int get_sensor_name(struct mei_device *dev)
+{
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+ struct spi_device *spi = hw->spi;
+ struct acpi_device *adev;
+ union acpi_object obj = { .type = ACPI_TYPE_INTEGER };
+ union acpi_object *ret_obj;
+ struct acpi_object_list arg_list = {
+ .count = 1,
+ .pointer = &obj,
+ };
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ acpi_status status;
+ char *c;
+
+ adev = find_cvfd_child_adev(ACPI_COMPANION(&spi->dev));
+ if (!adev) {
+ dev_err(&spi->dev, "ACPI not found CVFD device\n");
+ return -ENODEV;
+ }
+
+ obj.integer.value = LINK_NUMBER;
+ status = acpi_evaluate_object(adev->handle, METHOD_NAME_SID, &arg_list,
+ &buffer);
+ if (ACPI_FAILURE(status)) {
+ dev_err(&spi->dev, "can't evaluate SID method: %d\n", status);
+ return -ENODEV;
+ }
+
+ ret_obj = buffer.pointer;
+ dev_dbg(&spi->dev, "SID status %d %lld %d - %d %s %d\n", status,
+ buffer.length, ret_obj->type, ret_obj->string.length,
+ ret_obj->string.pointer,
+ acpi_has_method(adev->handle, METHOD_NAME_SID));
+
+ if (ret_obj->string.length > sizeof(hw->cam_sensor_name)) {
+ ACPI_FREE(buffer.pointer);
+ return -EINVAL;
+ }
+ memcpy(hw->cam_sensor_name, ret_obj->string.pointer,
+ ret_obj->string.length);
+
+ /* camera sensor name are all in lower case */
+ for (c = hw->cam_sensor_name; *c != '\0'; c++)
+ *c = tolower(*c);
+
+ ACPI_FREE(buffer.pointer);
+ return 0;
+}
+
+static int mei_vsc_probe(struct spi_device *spi)
+{
+ struct mei_vsc_hw *hw;
+ struct mei_device *dev;
+ int ret;
+
+ dev = mei_vsc_dev_init(&spi->dev);
+ if (!dev)
+ return -ENOMEM;
+
+ hw = to_vsc_hw(dev);
+ mutex_init(&hw->mutex);
+ init_waitqueue_head(&hw->xfer_wait);
+ hw->spi = spi;
+ spi_set_drvdata(spi, dev);
+
+ ret = get_sensor_name(dev);
+ if (ret)
+ return ret;
+
+ ret = devm_acpi_dev_add_driver_gpios(&spi->dev, mei_vsc_acpi_gpios);
+ if (ret) {
+ dev_err(&spi->dev, "%s: fail to add gpio\n", __func__);
+ return -EBUSY;
+ }
+
+ hw->wakeuphost = devm_gpiod_get(&spi->dev, "wakeuphost", GPIOD_IN);
+ if (IS_ERR(hw->wakeuphost)) {
+ dev_err(&spi->dev, "gpio get irq failed\n");
+ return -EINVAL;
+ }
+ hw->resetfw = devm_gpiod_get(&spi->dev, "resetfw", GPIOD_OUT_HIGH);
+ if (IS_ERR(hw->resetfw)) {
+ dev_err(&spi->dev, "gpio get resetfw failed\n");
+ return -EINVAL;
+ }
+ hw->wakeupfw = devm_gpiod_get(&spi->dev, "wakeupfw", GPIOD_OUT_HIGH);
+ if (IS_ERR(hw->wakeupfw)) {
+ dev_err(&spi->dev, "gpio get wakeupfw failed\n");
+ return -EINVAL;
+ }
+
+ ret = acpi_dev_gpio_irq_get_by(ACPI_COMPANION(&spi->dev),
+ "wakeuphostint-gpios", 0);
+ if (ret < 0)
+ return ret;
+
+ hw->wakeuphostint = ret;
+ irq_set_status_flags(hw->wakeuphostint, IRQ_DISABLE_UNLAZY);
+ ret = request_threaded_irq(hw->wakeuphostint, mei_vsc_irq_quick_handler,
+ mei_vsc_irq_thread_handler,
+ IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ KBUILD_MODNAME, dev);
+ if (mei_start(dev)) {
+ dev_err(&spi->dev, "init hw failure.\n");
+ ret = -ENODEV;
+ goto release_irq;
+ }
+
+ ret = mei_register(dev, &spi->dev);
+ if (ret)
+ goto stop;
+
+ pm_runtime_enable(dev->dev);
+ dev_dbg(&spi->dev, "initialization successful.\n");
+ return 0;
+
+stop:
+ mei_stop(dev);
+release_irq:
+ mei_cancel_work(dev);
+ mei_disable_interrupts(dev);
+ free_irq(hw->wakeuphostint, dev);
+ return ret;
+}
+
+static int __maybe_unused mei_vsc_suspend(struct device *device)
+{
+ struct spi_device *spi = to_spi_device(device);
+ struct mei_device *dev = spi_get_drvdata(spi);
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+
+ if (!dev)
+ return -ENODEV;
+
+ dev_dbg(dev->dev, "%s\n", __func__);
+
+ hw->disconnect = true;
+ mei_stop(dev);
+ mei_disable_interrupts(dev);
+ free_irq(hw->wakeuphostint, dev);
+ return 0;
+}
+
+static int __maybe_unused mei_vsc_resume(struct device *device)
+{
+ struct spi_device *spi = to_spi_device(device);
+ struct mei_device *dev = spi_get_drvdata(spi);
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+ int ret;
+
+ dev_dbg(dev->dev, "%s\n", __func__);
+ irq_set_status_flags(hw->wakeuphostint, IRQ_DISABLE_UNLAZY);
+ ret = request_threaded_irq(hw->wakeuphostint, mei_vsc_irq_quick_handler,
+ mei_vsc_irq_thread_handler,
+ IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ KBUILD_MODNAME, dev);
+ if (ret) {
+ dev_err(device, "request_threaded_irq failed: irq = %d.\n",
+ hw->wakeuphostint);
+ return ret;
+ }
+
+ hw->disconnect = false;
+ ret = mei_restart(dev);
+ if (ret)
+ return ret;
+
+ /* Start timer if stopped in suspend */
+ schedule_delayed_work(&dev->timer_work, HZ);
+ return 0;
+}
+
+static int mei_vsc_remove(struct spi_device *spi)
+{
+ struct mei_device *dev = spi_get_drvdata(spi);
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+
+ dev_info(&spi->dev, "%s %d", __func__, hw->wakeuphostint);
+
+ pm_runtime_disable(dev->dev);
+ hw->disconnect = true;
+ mei_stop(dev);
+ mei_disable_interrupts(dev);
+ free_irq(hw->wakeuphostint, dev);
+ mei_deregister(dev);
+ mutex_destroy(&hw->mutex);
+ return 0;
+}
+
+/**
+ * mei_vsc_shutdown - Device Removal Routine
+ *
+ * @spi: SPI device structure
+ *
+ * mei_vsc_shutdown is called from the reboot notifier
+ * it's a simplified version of remove so we go down
+ * faster.
+ */
+static void mei_vsc_shutdown(struct spi_device *spi)
+{
+ struct mei_device *dev = spi_get_drvdata(spi);
+ struct mei_vsc_hw *hw = to_vsc_hw(dev);
+
+ dev_dbg(dev->dev, "shutdown\n");
+ hw->disconnect = true;
+ mei_stop(dev);
+
+ mei_disable_interrupts(dev);
+ free_irq(hw->wakeuphostint, dev);
+}
+
+static const struct dev_pm_ops mei_vsc_pm_ops = {
+
+ SET_SYSTEM_SLEEP_PM_OPS(mei_vsc_suspend, mei_vsc_resume)
+};
+
+static const struct acpi_device_id mei_vsc_acpi_ids[] = {
+ { "INTC1058", 1 },
+ { "INTC1094", 1 },
+ {},
+};
+MODULE_DEVICE_TABLE(acpi, mei_vsc_acpi_ids);
+
+static struct spi_driver mei_vsc_driver = {
+ .driver = {
+ .name = KBUILD_MODNAME,
+ .acpi_match_table = ACPI_PTR(mei_vsc_acpi_ids),
+ .pm = &mei_vsc_pm_ops,
+ },
+ .probe = mei_vsc_probe,
+ .remove = mei_vsc_remove,
+ .shutdown = mei_vsc_shutdown,
+ .driver.probe_type = PROBE_PREFER_ASYNCHRONOUS,
+};
+module_spi_driver(mei_vsc_driver);
+
+MODULE_AUTHOR("Ye Xiang <xiang.ye at intel.com>");
+MODULE_DESCRIPTION("Intel MEI VSC driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 83e352b0c8f9a..b2feae29781cd 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -413,6 +413,16 @@ config SPI_JCORE
This enables support for the SPI master controller in the J-Core
synthesizable, open source SoC.
+config SPI_LJCA
+ tristate "INTEL La Jolla Cove Adapter SPI support"
+ depends on MFD_LJCA
+ help
+ Select this option to enable SPI driver for the INTEL
+ La Jolla Cove Adapter (LJCA) board.
+
+ This driver can also be built as a module. If so, the module
+ will be called spi-ljca.
+
config SPI_LM70_LLP
tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
depends on PARPORT
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
index 699db95c84416..e441fb6f4a849 100644
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -61,6 +61,7 @@ obj-$(CONFIG_SPI_IMG_SPFI) += spi-img-spfi.o
obj-$(CONFIG_SPI_IMX) += spi-imx.o
obj-$(CONFIG_SPI_LANTIQ_SSC) += spi-lantiq-ssc.o
obj-$(CONFIG_SPI_JCORE) += spi-jcore.o
+obj-$(CONFIG_SPI_LJCA) += spi-ljca.o
obj-$(CONFIG_SPI_LM70_LLP) += spi-lm70llp.o
obj-$(CONFIG_SPI_LP8841_RTC) += spi-lp8841-rtc.o
obj-$(CONFIG_SPI_MESON_SPICC) += spi-meson-spicc.o
diff --git a/drivers/spi/spi-ljca.c b/drivers/spi/spi-ljca.c
new file mode 100644
index 0000000000000..0ff3eea406876
--- /dev/null
+++ b/drivers/spi/spi-ljca.c
@@ -0,0 +1,328 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Intel La Jolla Cove Adapter USB-SPI driver
+ *
+ * Copyright (c) 2021, Intel Corporation.
+ */
+
+#include <linux/acpi.h>
+#include <linux/mfd/ljca.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
+
+/* SPI commands */
+enum ljca_spi_cmd {
+ LJCA_SPI_INIT = 1,
+ LJCA_SPI_READ,
+ LJCA_SPI_WRITE,
+ LJCA_SPI_WRITEREAD,
+ LJCA_SPI_DEINIT,
+};
+
+#define LJCA_SPI_BUS_MAX_HZ 48000000
+enum {
+ LJCA_SPI_BUS_SPEED_24M,
+ LJCA_SPI_BUS_SPEED_12M,
+ LJCA_SPI_BUS_SPEED_8M,
+ LJCA_SPI_BUS_SPEED_6M,
+ LJCA_SPI_BUS_SPEED_4_8M, /*4.8MHz*/
+ LJCA_SPI_BUS_SPEED_MIN = LJCA_SPI_BUS_SPEED_4_8M,
+};
+
+enum {
+ LJCA_SPI_CLOCK_LOW_POLARITY,
+ LJCA_SPI_CLOCK_HIGH_POLARITY,
+};
+
+enum {
+ LJCA_SPI_CLOCK_FIRST_PHASE,
+ LJCA_SPI_CLOCK_SECOND_PHASE,
+};
+
+#define LJCA_SPI_BUF_SIZE 60
+#define LJCA_SPI_MAX_XFER_SIZE \
+ (LJCA_SPI_BUF_SIZE - sizeof(struct spi_xfer_packet))
+union spi_clock_mode {
+ struct {
+ u8 polarity : 1;
+ u8 phrase : 1;
+ u8 reserved : 6;
+ } u;
+
+ u8 mode;
+} __packed;
+
+struct spi_init_packet {
+ u8 index;
+ u8 speed;
+ union spi_clock_mode mode;
+} __packed;
+
+struct spi_xfer_indicator {
+ u8 id : 6;
+ u8 cmpl : 1;
+ u8 index : 1;
+};
+
+struct spi_xfer_packet {
+ struct spi_xfer_indicator indicator;
+ s8 len;
+ u8 data[];
+} __packed;
+
+struct ljca_spi_dev {
+ struct platform_device *pdev;
+ struct ljca_spi_info *ctr_info;
+ struct spi_master *master;
+ u8 speed;
+ u8 mode;
+
+ u8 obuf[LJCA_SPI_BUF_SIZE];
+ u8 ibuf[LJCA_SPI_BUF_SIZE];
+};
+
+static int ljca_spi_read_write(struct ljca_spi_dev *ljca_spi, const u8 *w_data,
+ u8 *r_data, int len, int id, int complete,
+ int cmd)
+{
+ struct spi_xfer_packet *w_packet =
+ (struct spi_xfer_packet *)ljca_spi->obuf;
+ struct spi_xfer_packet *r_packet =
+ (struct spi_xfer_packet *)ljca_spi->ibuf;
+ int ret;
+ int ibuf_len;
+
+ w_packet->indicator.index = ljca_spi->ctr_info->id;
+ w_packet->indicator.id = id;
+ w_packet->indicator.cmpl = complete;
+
+ if (cmd == LJCA_SPI_READ) {
+ w_packet->len = sizeof(u16);
+ *(u16 *)&w_packet->data[0] = len;
+ } else {
+ w_packet->len = len;
+ memcpy(w_packet->data, w_data, len);
+ }
+
+ ret = ljca_transfer(ljca_spi->pdev, cmd, w_packet,
+ sizeof(*w_packet) + w_packet->len, r_packet,
+ &ibuf_len);
+ if (ret)
+ return ret;
+
+ if (ibuf_len < sizeof(*r_packet) || r_packet->len <= 0) {
+ dev_err(&ljca_spi->pdev->dev, "receive patcket error len %d\n",
+ r_packet->len);
+ return -EIO;
+ }
+
+ if (r_data)
+ memcpy(r_data, r_packet->data, r_packet->len);
+
+ return 0;
+}
+
+static int ljca_spi_init(struct ljca_spi_dev *ljca_spi, int div, int mode)
+{
+ struct spi_init_packet w_packet = { 0 };
+ int ret;
+
+ if (ljca_spi->mode == mode && ljca_spi->speed == div)
+ return 0;
+
+ if (mode & SPI_CPOL)
+ w_packet.mode.u.polarity = LJCA_SPI_CLOCK_HIGH_POLARITY;
+ else
+ w_packet.mode.u.polarity = LJCA_SPI_CLOCK_LOW_POLARITY;
+
+ if (mode & SPI_CPHA)
+ w_packet.mode.u.phrase = LJCA_SPI_CLOCK_SECOND_PHASE;
+ else
+ w_packet.mode.u.phrase = LJCA_SPI_CLOCK_FIRST_PHASE;
+
+ w_packet.index = ljca_spi->ctr_info->id;
+ w_packet.speed = div;
+ ret = ljca_transfer(ljca_spi->pdev, LJCA_SPI_INIT, &w_packet,
+ sizeof(w_packet), NULL, NULL);
+ if (ret)
+ return ret;
+
+ ljca_spi->mode = mode;
+ ljca_spi->speed = div;
+ return 0;
+}
+
+static int ljca_spi_deinit(struct ljca_spi_dev *ljca_spi)
+{
+ struct spi_init_packet w_packet = { 0 };
+
+ w_packet.index = ljca_spi->ctr_info->id;
+ return ljca_transfer(ljca_spi->pdev, LJCA_SPI_DEINIT, &w_packet,
+ sizeof(w_packet), NULL, NULL);
+}
+
+static int ljca_spi_transfer(struct ljca_spi_dev *ljca_spi, const u8 *tx_data,
+ u8 *rx_data, u16 len)
+{
+ int ret;
+ int remaining = len;
+ int offset = 0;
+ int cur_len;
+ int complete = 0;
+ int i;
+
+ for (i = 0; remaining > 0;
+ offset += cur_len, remaining -= cur_len, i++) {
+ dev_dbg(&ljca_spi->pdev->dev,
+ "fragment %d offset %d remaining %d ret %d\n", i,
+ offset, remaining, ret);
+
+ if (remaining > LJCA_SPI_MAX_XFER_SIZE) {
+ cur_len = LJCA_SPI_MAX_XFER_SIZE;
+ } else {
+ cur_len = remaining;
+ complete = 1;
+ }
+
+ if (tx_data && rx_data)
+ ret = ljca_spi_read_write(ljca_spi, tx_data + offset,
+ rx_data + offset, cur_len, i,
+ complete, LJCA_SPI_WRITEREAD);
+ else if (tx_data)
+ ret = ljca_spi_read_write(ljca_spi, tx_data + offset,
+ NULL, cur_len, i, complete,
+ LJCA_SPI_WRITE);
+ else if (rx_data)
+ ret = ljca_spi_read_write(ljca_spi, NULL,
+ rx_data + offset, cur_len, i,
+ complete, LJCA_SPI_READ);
+ else
+ return -EINVAL;
+ }
+
+ return ret;
+}
+
+static int ljca_spi_prepare_message(struct spi_master *master,
+ struct spi_message *message)
+{
+ struct ljca_spi_dev *ljca_spi = spi_master_get_devdata(master);
+ struct spi_device *spi = message->spi;
+
+ dev_dbg(&ljca_spi->pdev->dev, "cs %d\n", spi->chip_select);
+ return 0;
+}
+
+static int ljca_spi_transfer_one(struct spi_master *master,
+ struct spi_device *spi,
+ struct spi_transfer *xfer)
+{
+ struct ljca_spi_dev *ljca_spi = spi_master_get_devdata(master);
+ int ret;
+ int div;
+
+ div = DIV_ROUND_UP(master->max_speed_hz, xfer->speed_hz) / 2 - 1;
+ if (div > LJCA_SPI_BUS_SPEED_MIN)
+ div = LJCA_SPI_BUS_SPEED_MIN;
+
+ ret = ljca_spi_init(ljca_spi, div, spi->mode);
+ if (ret < 0) {
+ dev_err(&ljca_spi->pdev->dev,
+ "cannot initialize transfer ret %d\n", ret);
+ return ret;
+ }
+
+ ret = ljca_spi_transfer(ljca_spi, xfer->tx_buf, xfer->rx_buf,
+ xfer->len);
+ if (ret < 0)
+ dev_err(&ljca_spi->pdev->dev, "ljca spi transfer failed!\n");
+
+ return ret;
+}
+
+static int ljca_spi_probe(struct platform_device *pdev)
+{
+ struct spi_master *master;
+ struct ljca_spi_dev *ljca_spi;
+ struct ljca_platform_data *pdata = dev_get_platdata(&pdev->dev);
+ int ret;
+
+ master = spi_alloc_master(&pdev->dev, sizeof(*ljca_spi));
+ if (!master)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, master);
+ ljca_spi = spi_master_get_devdata(master);
+
+ ljca_spi->ctr_info = &pdata->spi_info;
+ ljca_spi->master = master;
+ ljca_spi->master->dev.of_node = pdev->dev.of_node;
+ ljca_spi->pdev = pdev;
+
+ ACPI_COMPANION_SET(&ljca_spi->master->dev, ACPI_COMPANION(&pdev->dev));
+
+ master->bus_num = -1;
+ master->mode_bits = SPI_CPHA | SPI_CPOL;
+ master->prepare_message = ljca_spi_prepare_message;
+ master->transfer_one = ljca_spi_transfer_one;
+ master->auto_runtime_pm = false;
+ master->max_speed_hz = LJCA_SPI_BUS_MAX_HZ;
+
+ ret = devm_spi_register_master(&pdev->dev, master);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to register master\n");
+ goto exit_free_master;
+ }
+
+ return ret;
+
+exit_free_master:
+ spi_master_put(master);
+ return ret;
+}
+
+static int ljca_spi_dev_remove(struct platform_device *pdev)
+{
+ struct spi_master *master = spi_master_get(platform_get_drvdata(pdev));
+ struct ljca_spi_dev *ljca_spi = spi_master_get_devdata(master);
+
+ ljca_spi_deinit(ljca_spi);
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int ljca_spi_dev_suspend(struct device *dev)
+{
+ struct spi_master *master = dev_get_drvdata(dev);
+
+ return spi_master_suspend(master);
+}
+
+static int ljca_spi_dev_resume(struct device *dev)
+{
+ struct spi_master *master = dev_get_drvdata(dev);
+
+ return spi_master_resume(master);
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static const struct dev_pm_ops ljca_spi_pm = {
+ SET_SYSTEM_SLEEP_PM_OPS(ljca_spi_dev_suspend, ljca_spi_dev_resume)
+};
+
+static struct platform_driver spi_ljca_driver = {
+ .driver = {
+ .name = "ljca-spi",
+ .pm = &ljca_spi_pm,
+ },
+ .probe = ljca_spi_probe,
+ .remove = ljca_spi_dev_remove,
+};
+
+module_platform_driver(spi_ljca_driver);
+
+MODULE_AUTHOR("Ye Xiang <xiang.ye at intel.com>");
+MODULE_DESCRIPTION("Intel La Jolla Cove Adapter USB-SPI driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:ljca-spi");
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index 578a439e71b57..d57aa7aa45e5a 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -174,4 +174,6 @@ source "drivers/usb/typec/Kconfig"
source "drivers/usb/roles/Kconfig"
+source "drivers/usb/intel_ulpss/Kconfig"
+
endif # USB_SUPPORT
diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile
index 643edf5fe18c6..ebce8603cd375 100644
--- a/drivers/usb/Makefile
+++ b/drivers/usb/Makefile
@@ -66,3 +66,5 @@ obj-$(CONFIG_USBIP_CORE) += usbip/
obj-$(CONFIG_TYPEC) += typec/
obj-$(CONFIG_USB_ROLE_SWITCH) += roles/
+
+obj-$(CONFIG_INTEL_LPSS_USB) += intel_ulpss/
diff --git a/drivers/usb/intel_ulpss/Kconfig b/drivers/usb/intel_ulpss/Kconfig
new file mode 100644
index 0000000000000..565f1750df201
--- /dev/null
+++ b/drivers/usb/intel_ulpss/Kconfig
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0
+
+config INTEL_LPSS_USB
+ tristate "Intel Low Power Subsystem support as USB devices"
+ depends on USB
+ help
+ This driver supports USB-interfaced Intel Low Power Subsystem
+ (LPSS) devices such as I2C, GPIO.
+ Say Y or M here if you have LPSS USB devices.
+ To compile this driver as a module, choose M here: the
+ module will be called intel_lpss_usb.ko.
diff --git a/drivers/usb/intel_ulpss/Makefile b/drivers/usb/intel_ulpss/Makefile
new file mode 100644
index 0000000000000..fbda28bd676f5
--- /dev/null
+++ b/drivers/usb/intel_ulpss/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_INTEL_LPSS_USB) += intel_lpss_usb.o
+intel_lpss_usb-y := ulpss_bridge.o usb_stub.o mng_stub.o i2c_stub.o gpio_stub.o diag_stub.o
diff --git a/drivers/usb/intel_ulpss/diag_stub.c b/drivers/usb/intel_ulpss/diag_stub.c
new file mode 100644
index 0000000000000..dcf7ac46f3a92
--- /dev/null
+++ b/drivers/usb/intel_ulpss/diag_stub.c
@@ -0,0 +1,116 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Intel LPSS USB driver
+ *
+ * Copyright (c) 2020, Intel Corporation.
+ */
+
+#include <linux/types.h>
+
+#include "diag_stub.h"
+
+struct diag_stub_priv {
+ struct usb_stub *stub;
+};
+
+int diag_get_state(struct usb_stub *stub)
+{
+ if (!stub)
+ return -EINVAL;
+
+ return usb_stub_write(stub, DIAG_GET_STATE, NULL, 0, true,
+ USB_WRITE_ACK_TIMEOUT);
+}
+
+int diag_get_fw_log(struct usb_stub *stub, u8 *buf, ssize_t *len)
+{
+ int ret;
+
+ mutex_lock(&stub->stub_mutex);
+ ret = usb_stub_write(stub, DIAG_GET_FW_LOG, NULL, 0, true,
+ USB_WRITE_ACK_TIMEOUT);
+
+ *len = stub->len;
+ if (!ret && stub->len > 0)
+ memcpy(buf, stub->buf, stub->len);
+
+ mutex_unlock(&stub->stub_mutex);
+ return ret;
+}
+
+int diag_get_coredump(struct usb_stub *stub, u8 *buf, ssize_t *len)
+{
+ int ret;
+
+ mutex_lock(&stub->stub_mutex);
+ ret = usb_stub_write(stub, DIAG_GET_FW_COREDUMP, NULL, 0, true,
+ USB_WRITE_ACK_TIMEOUT);
+
+ *len = stub->len;
+ if (!ret && !stub->len)
+ memcpy(buf, stub->buf, stub->len);
+
+ mutex_unlock(&stub->stub_mutex);
+
+ return ret;
+}
+
+int diag_get_statistic_info(struct usb_stub *stub)
+{
+ int ret;
+
+ if (stub == NULL)
+ return -EINVAL;
+
+ mutex_lock(&stub->stub_mutex);
+ ret = usb_stub_write(stub, DIAG_GET_STATISTIC, NULL, 0, true,
+ USB_WRITE_ACK_TIMEOUT);
+ mutex_unlock(&stub->stub_mutex);
+
+ return ret;
+}
+
+int diag_set_trace_level(struct usb_stub *stub, u8 level)
+{
+ int ret;
+
+ if (stub == NULL)
+ return -EINVAL;
+
+ mutex_lock(&stub->stub_mutex);
+ ret = usb_stub_write(stub, DIAG_SET_TRACE_LEVEL, &level, sizeof(level),
+ true, USB_WRITE_ACK_TIMEOUT);
+ mutex_unlock(&stub->stub_mutex);
+
+ return ret;
+}
+
+static void diag_stub_cleanup(struct usb_stub *stub)
+{
+ BUG_ON(!stub);
+ if (stub->priv)
+ kfree(stub->priv);
+
+ return;
+}
+
+int diag_stub_init(struct usb_interface *intf, void *cookie, u8 len)
+{
+ struct usb_stub *stub = usb_stub_alloc(intf);
+ struct diag_stub_priv *priv;
+
+ if (!intf || !stub)
+ return -EINVAL;
+
+ priv = kzalloc(sizeof(struct diag_stub_priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->stub = stub;
+
+ stub->priv = priv;
+ stub->type = DIAG_CMD_TYPE;
+ stub->intf = intf;
+ stub->cleanup = diag_stub_cleanup;
+ return 0;
+}
diff --git a/drivers/usb/intel_ulpss/diag_stub.h b/drivers/usb/intel_ulpss/diag_stub.h
new file mode 100644
index 0000000000000..b52b11e85ec75
--- /dev/null
+++ b/drivers/usb/intel_ulpss/diag_stub.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Intel LPSS USB driver
+ *
+ * Copyright (c) 2020, Intel Corporation.
+ */
+
+#ifndef __DIAG_STUB_H__
+#define __DIAG_STUB_H__
+
+#include "usb_stub.h"
+
+int diag_set_trace_level(struct usb_stub *stub, u8 level);
+int diag_get_statistic_info(struct usb_stub *stub);
+int diag_stub_init(struct usb_interface *intf, void *cookie, u8 len);
+int diag_get_state(struct usb_stub *stub);
+int diag_get_fw_log(struct usb_stub *stub, u8 *buf, ssize_t *len);
+int diag_get_coredump(struct usb_stub *stub, u8 *buf, ssize_t *len);
+#endif
diff --git a/drivers/usb/intel_ulpss/gpio_stub.c b/drivers/usb/intel_ulpss/gpio_stub.c
new file mode 100644
index 0000000000000..fd0aee9b8466b
--- /dev/null
+++ b/drivers/usb/intel_ulpss/gpio_stub.c
@@ -0,0 +1,459 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Intel LPSS USB driver
+ *
+ * Copyright (c) 2020, Intel Corporation.
+ */
+
+#include <linux/acpi.h>
+#include <linux/gpio/driver.h>
+#include <linux/kernel.h>
+#include <linux/kref.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/usb.h>
+
+#include "gpio_stub.h"
+#include "protocol_intel_ulpss.h"
+#include "usb_stub.h"
+
+#define USB_BRIDGE_GPIO_HID "INTC1074"
+struct pin_info {
+ u8 bank_id;
+ bool valid;
+ u8 connect_mode;
+};
+
+struct gpio_stub_priv {
+ u32 id;
+ struct usb_stub *stub;
+
+ /** gpio descriptor */
+ struct gpio_descriptor descriptor;
+ struct pin_info *pin_info_table;
+
+ struct device dev;
+ u32 valid_gpio_num;
+ u32 total_gpio_num;
+ struct gpio_chip gpio_chip;
+
+ bool ready;
+};
+
+/** stub function */
+static int gpio_stub_parse(struct usb_stub *stub, u8 cmd, u8 flags, u8 *data,
+ u32 len)
+{
+ if (!stub)
+ return -EINVAL;
+
+ if (cmd == GPIO_INTR_NOTIFY)
+ if (stub->notify)
+ stub->notify(stub, GPIO_INTR_EVENT, NULL);
+
+ return 0;
+}
+
+static void gpio_stub_cleanup(struct usb_stub *stub)
+{
+ struct gpio_stub_priv *priv = stub->priv;
+
+ if (!stub || !priv)
+ return;
+
+ dev_dbg(&stub->intf->dev, "%s unregister gpio dev\n", __func__);
+
+ if (priv->ready) {
+ gpiochip_remove(&priv->gpio_chip);
+ device_unregister(&priv->dev);
+ }
+
+ if (priv->pin_info_table) {
+ kfree(priv->pin_info_table);
+ priv->pin_info_table = NULL;
+ }
+ kfree(priv);
+
+ return;
+}
+
+static int gpio_stub_update_descriptor(struct usb_stub *stub,
+ struct gpio_descriptor *descriptor,
+ u8 len)
+{
+ struct gpio_stub_priv *priv = stub->priv;
+ u32 i, j;
+ int pin_id;
+
+ if (!priv || !descriptor ||
+ len != offsetof(struct gpio_descriptor, bank_table) +
+ sizeof(struct bank_descriptor) *
+ descriptor->banks ||
+ len > sizeof(priv->descriptor))
+ return -EINVAL;
+
+ if ((descriptor->pins_per_bank <= 0) || (descriptor->banks <= 0)) {
+ dev_err(&stub->intf->dev, "%s pins_per_bank:%d bans:%d\n",
+ __func__, descriptor->pins_per_bank, descriptor->banks);
+ return -EINVAL;
+ }
+
+ priv->total_gpio_num = descriptor->pins_per_bank * descriptor->banks;
+ memcpy(&priv->descriptor, descriptor, len);
+
+ priv->pin_info_table =
+ kzalloc(sizeof(struct pin_info) * descriptor->pins_per_bank *
+ descriptor->banks,
+ GFP_KERNEL);
+ if (!priv->pin_info_table)
+ return -ENOMEM;
+
+ for (i = 0; i < descriptor->banks; i++) {
+ for (j = 0; j < descriptor->pins_per_bank; j++) {
+ pin_id = descriptor->pins_per_bank * i + j;
+ if ((descriptor->bank_table[i].bitmap & (1 << j))) {
+ priv->pin_info_table[pin_id].valid = true;
+ priv->valid_gpio_num++;
+ dev_dbg(&stub->intf->dev,
+ "%s found one valid pin (%d %d %d %d %d)\n",
+ __func__, i, j,
+ descriptor->bank_table[i].pin_num,
+ descriptor->pins_per_bank,
+ priv->valid_gpio_num);
+ } else {
+ priv->pin_info_table[pin_id].valid = false;
+ }
+ priv->pin_info_table[pin_id].bank_id = i;
+ }
+ }
+
+ dev_dbg(&stub->intf->dev, "%s valid_gpio_num:%d total_gpio_num:%d\n",
+ __func__, priv->valid_gpio_num, priv->total_gpio_num);
+ return 0;
+}
+
+static struct pin_info *gpio_stub_get_pin_info(struct usb_stub *stub, u8 pin_id)
+{
+ struct pin_info *pin_info = NULL;
+ struct gpio_stub_priv *priv = stub->priv;
+
+ BUG_ON(!priv);
+
+ if (!(pin_id <
+ priv->descriptor.banks * priv->descriptor.pins_per_bank)) {
+ dev_err(&stub->intf->dev,
+ "pin_id:%d banks:%d, pins_per_bank:%d\n", pin_id,
+ priv->descriptor.banks, priv->descriptor.pins_per_bank);
+ return NULL;
+ }
+
+ pin_info = &priv->pin_info_table[pin_id];
+ if (!pin_info || !pin_info->valid) {
+ dev_err(&stub->intf->dev,
+ "%s pin_id:%d banks:%d, pins_per_bank:%d valid:%d",
+ __func__, pin_id, priv->descriptor.banks,
+ priv->descriptor.pins_per_bank, pin_info->valid);
+
+ return NULL;
+ }
+
+ return pin_info;
+}
+
+static int gpio_stub_ready(struct usb_stub *stub, void *cookie, u8 len);
+int gpio_stub_init(struct usb_interface *intf, void *cookie, u8 len)
+{
+ struct usb_stub *stub = usb_stub_alloc(intf);
+ struct gpio_stub_priv *priv;
+
+ if (!intf || !stub)
+ return -EINVAL;
+
+ priv = kzalloc(sizeof(struct gpio_stub_priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->stub = stub;
+ priv->id = DEFAULT_GPIO_CONTROLLER_ID;
+
+ stub->priv = priv;
+ stub->type = GPIO_CMD_TYPE;
+ stub->intf = intf;
+ stub->parse = gpio_stub_parse;
+ stub->cleanup = gpio_stub_cleanup;
+
+ return gpio_stub_ready(stub, cookie, len);
+}
+
+/** gpio function */
+static u8 gpio_get_payload_len(u8 pin_num)
+{
+ return sizeof(struct gpio_packet) + pin_num * sizeof(struct gpio_op);
+}
+
+static int gpio_config(struct usb_stub *stub, u8 pin_id, u8 config)
+{
+ struct gpio_packet *packet;
+ struct pin_info *pin_info;
+ u8 buf[MAX_PAYLOAD_SIZE] = { 0 };
+
+ if (!stub)
+ return -EINVAL;
+
+ dev_dbg(&stub->intf->dev, "%s pin_id:%u\n", __func__, pin_id);
+
+ packet = (struct gpio_packet *)buf;
+
+ pin_info = gpio_stub_get_pin_info(stub, pin_id);
+ if (!pin_info) {
+ dev_err(&stub->intf->dev, "invalid gpio pin pin_id:%d\n",
+ pin_id);
+ return -EINVAL;
+ }
+
+ packet->item[0].index = pin_id;
+ packet->item[0].value = config | pin_info->connect_mode;
+ packet->num = 1;
+
+ return usb_stub_write(stub, GPIO_CONFIG, (u8 *)packet,
+ (u8)gpio_get_payload_len(packet->num), true,
+ USB_WRITE_ACK_TIMEOUT);
+}
+
+static int intel_ulpss_gpio_read(struct usb_stub *stub, u8 pin_id, int *data)
+{
+ struct gpio_packet *packet;
+ struct pin_info *pin_info;
+ struct gpio_packet *ack_packet;
+ u8 buf[MAX_PAYLOAD_SIZE] = { 0 };
+ int ret;
+
+ if (!stub)
+ return -EINVAL;
+
+ packet = (struct gpio_packet *)buf;
+ packet->num = 1;
+
+ pin_info = gpio_stub_get_pin_info(stub, pin_id);
+ if (!pin_info) {
+ dev_err(&stub->intf->dev, "invalid gpio pin_id:[%u]", pin_id);
+ return -EINVAL;
+ }
+
+ packet->item[0].index = pin_id;
+ ret = usb_stub_write(stub, GPIO_READ, (u8 *)packet,
+ (u8)gpio_get_payload_len(packet->num), true,
+ USB_WRITE_ACK_TIMEOUT);
+
+ ack_packet = (struct gpio_packet *)stub->buf;
+
+ BUG_ON(!ack_packet);
+ if (ret || !stub->len || ack_packet->num != packet->num) {
+ dev_err(&stub->intf->dev,
+ "%s usb_stub_write failed pin_id:%d ret %d", __func__,
+ pin_id, ret);
+ return -EIO;
+ }
+
+ *data = (ack_packet->item[0].value > 0) ? 1 : 0;
+
+ return ret;
+}
+
+static int intel_ulpss_gpio_write(struct usb_stub *stub, u8 pin_id, int value)
+{
+ struct gpio_packet *packet;
+ u8 buf[MAX_PAYLOAD_SIZE] = { 0 };
+
+ BUG_ON(!stub);
+
+ packet = (struct gpio_packet *)buf;
+ packet->num = 1;
+
+ packet->item[0].index = pin_id;
+ packet->item[0].value = (value & 1);
+
+ return usb_stub_write(stub, GPIO_WRITE, buf,
+ gpio_get_payload_len(packet->num), true,
+ USB_WRITE_ACK_TIMEOUT);
+}
+
+/* gpio chip*/
+static int intel_ulpss_gpio_get_value(struct gpio_chip *chip, unsigned off)
+{
+ struct gpio_stub_priv *priv = gpiochip_get_data(chip);
+ int value = 0;
+ int ret;
+
+ dev_dbg(chip->parent, "%s off:%u\n", __func__, off);
+ ret = intel_ulpss_gpio_read(priv->stub, off, &value);
+ if (ret) {
+ dev_err(chip->parent, "%s off:%d get vaule failed %d\n",
+ __func__, off, ret);
+ }
+ return value;
+}
+
+static void intel_ulpss_gpio_set_value(struct gpio_chip *chip, unsigned off, int val)
+{
+ struct gpio_stub_priv *priv = gpiochip_get_data(chip);
+ int ret;
+
+ dev_dbg(chip->parent, "%s off:%u val:%d\n", __func__, off, val);
+ ret = intel_ulpss_gpio_write(priv->stub, off, val);
+ if (ret) {
+ dev_err(chip->parent, "%s off:%d val:%d set vaule failed %d\n",
+ __func__, off, val, ret);
+ }
+}
+
+static int intel_ulpss_gpio_direction_input(struct gpio_chip *chip, unsigned off)
+{
+ struct gpio_stub_priv *priv = gpiochip_get_data(chip);
+ u8 config = GPIO_CONF_INPUT | GPIO_CONF_CLR;
+
+ dev_dbg(chip->parent, "%s off:%u\n", __func__, off);
+ return gpio_config(priv->stub, off, config);
+}
+
+static int intel_ulpss_gpio_direction_output(struct gpio_chip *chip, unsigned off,
+ int val)
+{
+ struct gpio_stub_priv *priv = gpiochip_get_data(chip);
+ u8 config = GPIO_CONF_OUTPUT | GPIO_CONF_CLR;
+ int ret;
+
+ dev_dbg(chip->parent, "%s off:%u\n", __func__, off);
+ ret = gpio_config(priv->stub, off, config);
+ if (ret)
+ return ret;
+
+ intel_ulpss_gpio_set_value(chip, off, val);
+ return ret;
+}
+
+static int intel_ulpss_gpio_set_config(struct gpio_chip *chip, unsigned int off,
+ unsigned long config)
+{
+ struct gpio_stub_priv *priv = gpiochip_get_data(chip);
+ struct pin_info *pin_info;
+
+ dev_dbg(chip->parent, "%s off:%d\n", __func__, off);
+
+ pin_info = gpio_stub_get_pin_info(priv->stub, off);
+ if (!pin_info) {
+ dev_err(chip->parent, "invalid gpio pin off:%d pin_id:%d\n",
+ off, off);
+
+ return -EINVAL;
+ }
+
+ dev_dbg(chip->parent, " %s off:%d config:%d\n", __func__, off,
+ pinconf_to_config_param(config));
+
+ pin_info->connect_mode = 0;
+ switch (pinconf_to_config_param(config)) {
+ case PIN_CONFIG_BIAS_PULL_UP:
+ pin_info->connect_mode |= GPIO_CONF_PULLUP;
+ break;
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ pin_info->connect_mode |= GPIO_CONF_PULLDOWN;
+ break;
+ case PIN_CONFIG_DRIVE_PUSH_PULL:
+ break;
+ default:
+ return -ENOTSUPP;
+ }
+
+ dev_dbg(chip->parent, " %s off:%d connect_mode:%d\n", __func__, off,
+ pin_info->connect_mode);
+ return 0;
+}
+
+static void gpio_dev_release(struct device *dev)
+{
+ dev_dbg(dev, "%s\n", __func__);
+}
+
+static int intel_ulpss_gpio_chip_setup(struct usb_interface *intf,
+ struct usb_stub *stub)
+{
+ struct gpio_stub_priv *priv;
+ struct gpio_chip *gc;
+ struct acpi_device *adev;
+ int ret;
+
+ priv = stub->priv;
+ priv->dev.parent = &intf->dev;
+ priv->dev.init_name = "intel-ulpss-gpio";
+ priv->dev.release = gpio_dev_release;
+ adev = find_adev_by_hid(
+ ACPI_COMPANION(&(interface_to_usbdev(intf)->dev)),
+ USB_BRIDGE_GPIO_HID);
+ if (adev) {
+ ACPI_COMPANION_SET(&priv->dev, adev);
+ dev_info(&intf->dev, "found: %s -> %s\n", dev_name(&intf->dev),
+ acpi_device_hid(adev));
+ } else {
+ dev_err(&intf->dev, "not found: %s\n", USB_BRIDGE_GPIO_HID);
+ }
+
+ ret = device_register(&priv->dev);
+ if (ret) {
+ dev_err(&intf->dev, "device register failed\n");
+ device_unregister(&priv->dev);
+
+ return ret;
+ }
+
+ gc = &priv->gpio_chip;
+ gc->direction_input = intel_ulpss_gpio_direction_input;
+ gc->direction_output = intel_ulpss_gpio_direction_output;
+ gc->get = intel_ulpss_gpio_get_value;
+ gc->set = intel_ulpss_gpio_set_value;
+ gc->set_config = intel_ulpss_gpio_set_config;
+ gc->can_sleep = true;
+ gc->parent = &priv->dev;
+
+ gc->base = -1;
+ gc->ngpio = priv->total_gpio_num;
+ gc->label = "intel_ulpss gpiochip";
+ gc->owner = THIS_MODULE;
+
+ ret = gpiochip_add_data(gc, priv);
+ if (ret) {
+ dev_err(&intf->dev, "%s gpiochip add failed ret:%d\n", __func__,
+ ret);
+ } else {
+ priv->ready = true;
+ dev_info(&intf->dev,
+ "%s gpiochip add success, base:%d ngpio:%d\n",
+ __func__, gc->base, gc->ngpio);
+ }
+
+ return ret;
+}
+
+static int gpio_stub_ready(struct usb_stub *stub, void *cookie, u8 len)
+{
+ struct gpio_descriptor *descriptor = cookie;
+ int ret;
+
+ if (!descriptor || (descriptor->pins_per_bank <= 0) ||
+ (descriptor->banks <= 0)) {
+ dev_err(&stub->intf->dev,
+ "%s gpio stub descriptor not correct\n", __func__);
+ return -EINVAL;
+ }
+
+ ret = gpio_stub_update_descriptor(stub, descriptor, len);
+ if (ret) {
+ dev_err(&stub->intf->dev,
+ "%s gpio stub update descriptor failed\n", __func__);
+ return ret;
+ }
+
+ ret = intel_ulpss_gpio_chip_setup(stub->intf, stub);
+
+ return ret;
+}
diff --git a/drivers/usb/intel_ulpss/gpio_stub.h b/drivers/usb/intel_ulpss/gpio_stub.h
new file mode 100644
index 0000000000000..a4ddb618c83b3
--- /dev/null
+++ b/drivers/usb/intel_ulpss/gpio_stub.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Intel LPSS USB driver
+ *
+ * Copyright (c) 2020, Intel Corporation.
+ */
+
+#ifndef __GPIO_STUB_H__
+#define __GPIO_STUB_H__
+
+int gpio_stub_init(struct usb_interface *intf, void *cookie, u8 len);
+
+#endif
diff --git a/drivers/usb/intel_ulpss/i2c_stub.c b/drivers/usb/intel_ulpss/i2c_stub.c
new file mode 100644
index 0000000000000..f0dcf6413016e
--- /dev/null
+++ b/drivers/usb/intel_ulpss/i2c_stub.c
@@ -0,0 +1,456 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Intel LPSS USB driver
+ *
+ * Copyright (c) 2020, Intel Corporation.
+ */
+
+#include <linux/acpi.h>
+#include <linux/bug.h>
+#include <linux/i2c.h>
+#include <linux/types.h>
+#include <linux/usb.h>
+
+#include "i2c_stub.h"
+#include "protocol_intel_ulpss.h"
+#include "usb_stub.h"
+
+#define USB_BRIDGE_I2C_HID_0 "INTC1075"
+#define USB_BRIDGE_I2C_HID_1 "INTC1076"
+
+static char *usb_bridge_i2c_hids[] = { USB_BRIDGE_I2C_HID_0,
+ USB_BRIDGE_I2C_HID_1 };
+
+struct i2c_stub_priv {
+ struct usb_stub *stub;
+ struct i2c_descriptor descriptor;
+ struct i2c_adapter *adap;
+
+ bool ready;
+};
+
+static u8 i2c_format_slave_addr(u8 slave_addr, enum i2c_address_mode mode)
+{
+ if (mode == I2C_ADDRESS_MODE_7Bit)
+ return slave_addr << 1;
+
+ return 0xFF;
+}
+
+static void i2c_stub_cleanup(struct usb_stub *stub)
+{
+ struct i2c_stub_priv *priv = stub->priv;
+ int i;
+
+ if (!priv)
+ return;
+
+ if (priv->ready) {
+ for (i = 0; i < priv->descriptor.num; i++)
+ if (priv->adap[i].nr != -1)
+ i2c_del_adapter(&priv->adap[i]);
+
+ if (priv->adap)
+ kfree(priv->adap);
+ }
+
+ kfree(priv);
+}
+
+static int i2c_stub_update_descriptor(struct usb_stub *stub,
+ struct i2c_descriptor *descriptor, u8 len)
+{
+ struct i2c_stub_priv *priv = stub->priv;
+
+ if (!priv || !descriptor ||
+ len != offsetof(struct i2c_descriptor, info) +
+ descriptor->num *
+ sizeof(struct i2c_controller_info) ||
+ len > sizeof(priv->descriptor))
+ return -EINVAL;
+
+ memcpy(&priv->descriptor, descriptor, len);
+
+ return 0;
+}
+
+static int i2c_stub_ready(struct usb_stub *stub, void *cookie, u8 len);
+int i2c_stub_init(struct usb_interface *intf, void *cookie, u8 len)
+{
+ struct usb_stub *stub = usb_stub_alloc(intf);
+ struct i2c_stub_priv *priv;
+
+ if (!intf || !stub)
+ return -EINVAL;
+
+ priv = kzalloc(sizeof(struct i2c_stub_priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ stub->priv = priv;
+ stub->type = I2C_CMD_TYPE;
+ stub->intf = intf;
+ stub->cleanup = i2c_stub_cleanup;
+
+ priv->stub = stub;
+
+ return i2c_stub_ready(stub, cookie, len);
+}
+
+/** i2c intf */
+static int intel_ulpss_i2c_init(struct usb_stub *stub, u8 id)
+{
+ struct i2c_raw_io *i2c_config;
+ u8 buf[MAX_PAYLOAD_SIZE] = { 0 };
+ int ret;
+
+ i2c_config = (struct i2c_raw_io *)buf;
+
+ i2c_config->id = id;
+ i2c_config->len = 1;
+ i2c_config->data[0] = I2C_FLAG_FREQ_400K;
+
+ ret = usb_stub_write(stub, I2C_INIT, (u8 *)i2c_config,
+ sizeof(struct i2c_raw_io) + i2c_config->len, true,
+ USB_WRITE_ACK_TIMEOUT);
+
+ return ret;
+}
+
+static int intel_ulpss_i2c_start(struct usb_stub *stub, u8 id, u8 slave_addr,
+ enum xfer_type type)
+{
+ struct i2c_raw_io *raw_io;
+ u8 buf[MAX_PAYLOAD_SIZE] = { 0 };
+ int ret;
+
+ BUG_ON(!stub);
+
+ raw_io = (struct i2c_raw_io *)buf;
+ raw_io->id = id;
+ raw_io->len = 1;
+ raw_io->data[0] =
+ i2c_format_slave_addr(slave_addr, I2C_ADDRESS_MODE_7Bit);
+ raw_io->data[0] |= (type == READ_XFER_TYPE) ? I2C_SLAVE_TRANSFER_READ :
+ I2C_SLAVE_TRANSFER_WRITE;
+
+ ret = usb_stub_write(stub, I2C_START, (u8 *)raw_io,
+ sizeof(struct i2c_raw_io) + raw_io->len, true,
+ USB_WRITE_ACK_TIMEOUT);
+
+ if (stub->len < sizeof(struct i2c_raw_io))
+ return -EIO;
+
+ raw_io = (struct i2c_raw_io *)stub->buf;
+ if (raw_io->len < 0 || raw_io->id != id) {
+ dev_err(&stub->intf->dev,
+ "%s i2c start failed len:%d id:%d %d\n", __func__,
+ raw_io->len, raw_io->id, id);
+ return -EIO;
+ }
+
+ return ret;
+}
+
+static int intel_ulpss_i2c_stop(struct usb_stub *stub, u8 id, u8 slave_addr)
+{
+ struct i2c_raw_io *raw_io;
+ u8 buf[MAX_PAYLOAD_SIZE] = { 0 };
+ int ret;
+
+ BUG_ON(!stub);
+
+ raw_io = (struct i2c_raw_io *)buf;
+ raw_io->id = id;
+ raw_io->len = 1;
+ raw_io->data[0] = 0;
+
+ ret = usb_stub_write(stub, I2C_STOP, (u8 *)raw_io,
+ sizeof(struct i2c_raw_io) + 1, true,
+ USB_WRITE_ACK_TIMEOUT);
+
+ if (stub->len < sizeof(struct i2c_raw_io))
+ return -EIO;
+
+ raw_io = (struct i2c_raw_io *)stub->buf;
+ if (raw_io->len < 0 || raw_io->id != id) {
+ dev_err(&stub->intf->dev,
+ "%s i2c stop failed len:%d id:%d %d\n", __func__,
+ raw_io->len, raw_io->id, id);
+ return -EIO;
+ }
+
+ return ret;
+}
+
+static int intel_ulpss_i2c_pure_read(struct usb_stub *stub, u8 id, u8 *data,
+ u8 len)
+{
+ struct i2c_raw_io *raw_io;
+ u8 buf[MAX_PAYLOAD_SIZE] = { 0 };
+ int ret;
+
+ raw_io = (struct i2c_raw_io *)buf;
+
+ BUG_ON(!stub);
+ if (len > MAX_PAYLOAD_SIZE - sizeof(struct i2c_raw_io)) {
+ return -EINVAL;
+ }
+
+ raw_io->id = id;
+ raw_io->len = len;
+ raw_io->data[0] = 0;
+ ret = usb_stub_write(stub, I2C_READ, (u8 *)raw_io,
+ sizeof(struct i2c_raw_io) + 1, true,
+ USB_WRITE_ACK_TIMEOUT);
+ if (ret) {
+ dev_err(&stub->intf->dev, "%s ret:%d\n", __func__, ret);
+ return ret;
+ }
+
+ if (stub->len < sizeof(struct i2c_raw_io))
+ return -EIO;
+
+ raw_io = (struct i2c_raw_io *)stub->buf;
+ if (raw_io->len < 0 || raw_io->id != id) {
+ dev_err(&stub->intf->dev,
+ "%s i2 raw read failed len:%d id:%d %d\n", __func__,
+ raw_io->len, raw_io->id, id);
+ return -EIO;
+ }
+
+ BUG_ON(raw_io->len != len);
+ memcpy(data, raw_io->data, raw_io->len);
+
+ return 0;
+}
+
+static int intel_ulpss_i2c_read(struct usb_stub *stub, u8 id, u8 slave_addr,
+ u8 *data, u8 len)
+{
+ int ret;
+
+ BUG_ON(!stub);
+ ret = intel_ulpss_i2c_start(stub, id, slave_addr, READ_XFER_TYPE);
+ if (ret) {
+ dev_err(&stub->intf->dev, "%s i2c start failed ret:%d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = intel_ulpss_i2c_pure_read(stub, id, data, len);
+ if (ret) {
+ dev_err(&stub->intf->dev, "%s i2c raw read failed ret:%d\n",
+ __func__, ret);
+
+ return ret;
+ }
+
+ ret = intel_ulpss_i2c_stop(stub, id, slave_addr);
+ if (ret) {
+ dev_err(&stub->intf->dev, "%s i2c stop failed ret:%d\n",
+ __func__, ret);
+
+ return ret;
+ }
+
+ return ret;
+}
+
+static int intel_ulpss_i2c_pure_write(struct usb_stub *stub, u8 id, u8 *data,
+ u8 len)
+{
+ struct i2c_raw_io *raw_io;
+ u8 buf[MAX_PAYLOAD_SIZE] = { 0 };
+ int ret;
+
+ if (len > MAX_PAYLOAD_SIZE - sizeof(struct i2c_raw_io)) {
+ dev_err(&stub->intf->dev, "%s unexpected long data, len: %d",
+ __func__, len);
+ return -EINVAL;
+ }
+
+ raw_io = (struct i2c_raw_io *)buf;
+ raw_io->id = id;
+ raw_io->len = len;
+ memcpy(raw_io->data, data, len);
+
+ ret = usb_stub_write(stub, I2C_WRITE, (u8 *)raw_io,
+ sizeof(struct i2c_raw_io) + raw_io->len, true,
+ USB_WRITE_ACK_TIMEOUT);
+
+ if (stub->len < sizeof(struct i2c_raw_io))
+ return -EIO;
+
+ raw_io = (struct i2c_raw_io *)stub->buf;
+ if (raw_io->len < 0 || raw_io->id != id) {
+ dev_err(&stub->intf->dev,
+ "%s i2c write failed len:%d id:%d %d\n", __func__,
+ raw_io->len, raw_io->id, id);
+ return -EIO;
+ }
+ return ret;
+}
+
+static int intel_ulpss_i2c_write(struct usb_stub *stub, u8 id, u8 slave_addr,
+ u8 *data, u8 len)
+{
+ int ret;
+ BUG_ON(!stub);
+
+ ret = intel_ulpss_i2c_start(stub, id, slave_addr, WRITE_XFER_TYPE);
+ if (ret)
+ return ret;
+
+ ret = intel_ulpss_i2c_pure_write(stub, id, data, len);
+ if (ret)
+ return ret;
+
+ ret = intel_ulpss_i2c_stop(stub, id, slave_addr);
+
+ return ret;
+}
+
+static int intel_ulpss_i2c_xfer(struct i2c_adapter *adapter,
+ struct i2c_msg *msg, int num)
+{
+ struct i2c_stub_priv *priv;
+ struct i2c_msg *cur_msg;
+ struct usb_stub *stub;
+ int id = -1;
+ int i, ret;
+
+ priv = i2c_get_adapdata(adapter);
+ stub = priv->stub;
+
+ if (!stub || !priv) {
+ dev_err(&adapter->dev, "%s num:%d stub:0x%lx priv:0x%lx\n",
+ __func__, num, (long)stub, (long)priv);
+ return 0;
+ }
+
+ for (i = 0; i < priv->descriptor.num; i++)
+ if (&priv->adap[i] == adapter)
+ id = i;
+
+ mutex_lock(&stub->stub_mutex);
+ ret = intel_ulpss_i2c_init(stub, id);
+ if (ret) {
+ dev_err(&adapter->dev, "%s i2c init failed id:%d\n", __func__,
+ adapter->nr);
+ mutex_unlock(&stub->stub_mutex);
+ return 0;
+ }
+
+ for (i = 0; !ret && i < num && id >= 0; i++) {
+ cur_msg = &msg[i];
+ dev_dbg(&adapter->dev, "%s i:%d id:%d msg:(%d %d)\n", __func__,
+ i, id, cur_msg->flags, cur_msg->len);
+ if (cur_msg->flags & I2C_M_RD)
+ ret = intel_ulpss_i2c_read(priv->stub, id,
+ cur_msg->addr, cur_msg->buf,
+ cur_msg->len);
+
+ else
+ ret = intel_ulpss_i2c_write(priv->stub, id,
+ cur_msg->addr, cur_msg->buf,
+ cur_msg->len);
+ }
+
+ mutex_unlock(&stub->stub_mutex);
+ dev_dbg(&adapter->dev, "%s id:%d ret:%d\n", __func__, id, ret);
+
+ /* return the number of messages processed, or the error code */
+ if (ret)
+ return ret;
+ return num;
+}
+
+static u32 intel_ulpss_i2c_func(struct i2c_adapter *adap)
+{
+ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+static const struct i2c_algorithm intel_ulpss_i2c_algo = {
+ .master_xfer = intel_ulpss_i2c_xfer,
+ .functionality = intel_ulpss_i2c_func,
+};
+
+static int intel_ulpss_i2c_adapter_register(struct usb_interface *intf,
+ struct i2c_adapter *adap, int index)
+{
+ struct acpi_device *adev;
+
+ if (!adap || index < 0 || index > sizeof(usb_bridge_i2c_hids))
+ return -EINVAL;
+
+ adev = find_adev_by_hid(
+ ACPI_COMPANION(&(interface_to_usbdev(intf)->dev)),
+ usb_bridge_i2c_hids[index]);
+ if (adev) {
+ dev_info(&intf->dev, "Found: %s -> %s\n", dev_name(&intf->dev),
+ acpi_device_hid(adev));
+ ACPI_COMPANION_SET(&adap->dev, adev);
+ } else {
+ dev_err(&intf->dev, "Not Found: %s\n",
+ usb_bridge_i2c_hids[index]);
+ }
+
+ return i2c_add_adapter(adap);
+}
+
+static int intel_ulpss_i2c_adapter_setup(struct usb_interface *intf,
+ struct usb_stub *stub)
+{
+ struct i2c_stub_priv *priv;
+ int ret;
+ int i;
+
+ if (!intf || !stub)
+ return -EINVAL;
+
+ priv = stub->priv;
+ if (!priv)
+ return -EINVAL;
+
+ priv->adap = kzalloc(sizeof(struct i2c_adapter) * priv->descriptor.num,
+ GFP_KERNEL);
+
+ for (i = 0; i < priv->descriptor.num; i++) {
+ priv->adap[i].owner = THIS_MODULE;
+ snprintf(priv->adap[i].name, sizeof(priv->adap[i].name),
+ "intel-ulpss-i2c-%d", i);
+ priv->adap[i].algo = &intel_ulpss_i2c_algo;
+ priv->adap[i].dev.parent = &intf->dev;
+
+ i2c_set_adapdata(&priv->adap[i], priv);
+
+ ret = intel_ulpss_i2c_adapter_register(intf, &priv->adap[i], i);
+ if (ret)
+ return ret;
+ }
+
+ priv->ready = true;
+ return ret;
+}
+
+static int i2c_stub_ready(struct usb_stub *stub, void *cookie, u8 len)
+{
+ struct i2c_descriptor *descriptor = cookie;
+ int ret;
+
+ if (!descriptor || descriptor->num <= 0) {
+ dev_err(&stub->intf->dev,
+ "%s i2c stub descriptor not correct\n", __func__);
+ return -EINVAL;
+ }
+
+ ret = i2c_stub_update_descriptor(stub, descriptor, len);
+ if (ret) {
+ dev_err(&stub->intf->dev,
+ "%s i2c stub update descriptor failed\n", __func__);
+ return ret;
+ }
+
+ ret = intel_ulpss_i2c_adapter_setup(stub->intf, stub);
+ return ret;
+}
diff --git a/drivers/usb/intel_ulpss/i2c_stub.h b/drivers/usb/intel_ulpss/i2c_stub.h
new file mode 100644
index 0000000000000..2049af4aa05db
--- /dev/null
+++ b/drivers/usb/intel_ulpss/i2c_stub.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Intel LPSS USB driver
+ *
+ * Copyright (c) 2020, Intel Corporation.
+ */
+
+#ifndef __I2C_STUB_H__
+#define __I2C_STUB_H__
+
+#include <linux/types.h>
+
+enum i2c_address_mode { I2C_ADDRESS_MODE_7Bit, I2C_ADDRESS_MODE_10Bit };
+enum xfer_type {
+ READ_XFER_TYPE,
+ WRITE_XFER_TYPE,
+};
+
+int i2c_stub_init(struct usb_interface *intf, void *cookie, u8 len);
+
+#endif
diff --git a/drivers/usb/intel_ulpss/mng_stub.c b/drivers/usb/intel_ulpss/mng_stub.c
new file mode 100644
index 0000000000000..ad949471c53c4
--- /dev/null
+++ b/drivers/usb/intel_ulpss/mng_stub.c
@@ -0,0 +1,244 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Intel LPSS USB driver
+ *
+ * Copyright (c) 2020, Intel Corporation.
+ */
+
+#include "ulpss_bridge.h"
+#include "mng_stub.h"
+#include "protocol_intel_ulpss.h"
+#include "usb_stub.h"
+#include "i2c_stub.h"
+#include "gpio_stub.h"
+
+struct mng_stub_priv {
+ long reset_id;
+ struct usb_stub *stub;
+ bool synced;
+};
+
+static void mng_cleanup(struct usb_stub *stub)
+{
+ struct mng_stub_priv *priv = stub->priv;
+
+ if (priv)
+ kfree(priv);
+}
+
+static int mng_reset_ack(struct usb_stub *stub, u32 reset_id)
+{
+ return usb_stub_write(stub, MNG_RESET_NOTIFY, (u8 *)&reset_id,
+ (u8)sizeof(reset_id), false,
+ USB_WRITE_ACK_TIMEOUT);
+}
+
+static int mng_stub_parse(struct usb_stub *stub, u8 cmd, u8 ack, u8 *data,
+ u32 len)
+{
+ struct mng_stub_priv *priv = stub->priv;
+ int ret = 0;
+
+ if (!stub || !stub->intf)
+ return -EINVAL;
+
+ switch (cmd) {
+ case MNG_RESET_NOTIFY:
+ if (data && (len >= sizeof(u32))) {
+ u32 reset_id = *(u32 *)data;
+
+ if (!ack)
+ ret = mng_reset_ack(stub, reset_id);
+
+ priv->synced = (!ret) ? true : false;
+ }
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+}
+
+int mng_stub_init(struct usb_interface *intf, void *cookie, u8 len)
+{
+ struct usb_stub *stub = usb_stub_alloc(intf);
+ struct mng_stub_priv *priv;
+
+ if (!intf || !stub)
+ return -EINVAL;
+
+ priv = kzalloc(sizeof(struct mng_stub_priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->reset_id = 0;
+ priv->stub = stub;
+
+ stub->priv = priv;
+ stub->type = MNG_CMD_TYPE;
+ stub->intf = intf;
+ stub->parse = mng_stub_parse;
+ stub->cleanup = mng_cleanup;
+
+ return 0;
+}
+
+static int mng_reset_handshake(struct usb_stub *stub)
+{
+ int ret;
+ struct mng_stub_priv *priv = stub->priv;
+ long reset_id;
+
+ if (!stub)
+ return -EINVAL;
+
+ reset_id = priv->reset_id++;
+ ret = usb_stub_write(stub, MNG_RESET_NOTIFY, (u8 *)&reset_id,
+ (u8)sizeof(reset_id), true, USB_WRITE_ACK_TIMEOUT);
+
+ if (ret || !priv->synced) {
+ dev_err(&stub->intf->dev, "%s priv->synced:%d ret:%d\n",
+ __func__, priv->synced, ret);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+int mng_reset(struct usb_stub *stub)
+{
+ if (!stub)
+ return -EINVAL;
+
+ return usb_stub_write(stub, MNG_RESET, NULL, 0, true,
+ USB_WRITE_ACK_TIMEOUT);
+}
+
+static int mng_enum_gpio(struct usb_stub *stub)
+{
+ int ret;
+
+ if (!stub)
+ return -EINVAL;
+
+ ret = usb_stub_write(stub, MNG_ENUM_GPIO, NULL, 0, true,
+ USB_WRITE_ACK_TIMEOUT);
+ if (ret || stub->len <= 0) {
+ dev_err(&stub->intf->dev, "%s enum gpio failed ret:%d len:%d\n",
+ __func__, ret, stub->len);
+ return ret;
+ }
+
+ return gpio_stub_init(stub->intf, stub->buf, stub->len);
+}
+
+static int mng_enum_i2c(struct usb_stub *stub)
+{
+ int ret;
+
+ if (!stub)
+ return -EINVAL;
+
+ ret = usb_stub_write(stub, MNG_ENUM_I2C, NULL, 0, true,
+ USB_WRITE_ACK_TIMEOUT);
+ if (ret || stub->len <= 0) {
+ dev_err(&stub->intf->dev, "%s enum gpio failed ret:%d len:%d\n",
+ __func__, ret, stub->len);
+ ret = -EIO;
+ return ret;
+ }
+
+ ret = i2c_stub_init(stub->intf, stub->buf, stub->len);
+ return ret;
+}
+
+int mng_get_version(struct usb_stub *stub, struct fw_version *version)
+{
+ int ret;
+
+ if (!stub || !version)
+ return -EINVAL;
+
+ mutex_lock(&stub->stub_mutex);
+ ret = usb_stub_write(stub, MNG_GET_VERSION, NULL, 0, true,
+ USB_WRITE_ACK_TIMEOUT);
+ if (ret || stub->len < sizeof(struct fw_version)) {
+ mutex_unlock(&stub->stub_mutex);
+ dev_err(&stub->intf->dev,
+ "%s MNG_GET_VERSION failed ret:%d len:%d\n", __func__,
+ ret, stub->len);
+ ret = -EIO;
+ return ret;
+ }
+
+ memcpy(version, stub->buf, sizeof(struct fw_version));
+ mutex_unlock(&stub->stub_mutex);
+
+ return 0;
+}
+
+int mng_get_version_string(struct usb_stub *stub, char *buf)
+{
+ int ret;
+ struct fw_version version;
+ if (!buf)
+ return -EINVAL;
+
+ ret = mng_get_version(stub, &version);
+ if (ret) {
+ dev_err(&stub->intf->dev, "%s mng get fw version failed ret:%d",
+ __func__, ret);
+
+ ret = sprintf(buf, "%d.%d.%d.%d\n", 1, 1, 1, 1);
+ return ret;
+ }
+
+ ret = sprintf(buf, "%d.%d.%d.%d\n", version.major, version.minor,
+ version.patch, version.build);
+
+ return ret;
+}
+
+int mng_set_dfu_mode(struct usb_stub *stub)
+{
+ int ret;
+ struct mng_stub_priv *priv = NULL;
+ if (!stub)
+ return -EINVAL;
+
+ priv = stub->priv;
+
+ mutex_lock(&stub->stub_mutex);
+ ret = usb_stub_write(stub, MNG_SET_DFU_MODE, NULL, 0, false,
+ USB_WRITE_ACK_TIMEOUT);
+ mutex_unlock(&stub->stub_mutex);
+
+ return ret;
+}
+
+int mng_stub_link(struct usb_interface *intf, struct usb_stub *mng_stub)
+{
+ int ret;
+ struct usb_bridge *intel_ulpss_dev = usb_get_intfdata(intf);
+
+ BUG_ON(!intel_ulpss_dev || !mng_stub);
+
+ ret = mng_reset_handshake(mng_stub);
+ if (ret)
+ return ret;
+ intel_ulpss_dev->state = USB_BRIDGE_RESET_SYNCED;
+
+ ret = mng_enum_gpio(mng_stub);
+ if (ret)
+ return ret;
+ intel_ulpss_dev->state = USB_BRIDGE_ENUM_GPIO_COMPLETE;
+
+ ret = mng_enum_i2c(mng_stub);
+ if (ret)
+ return ret;
+ intel_ulpss_dev->state = USB_BRIDGE_ENUM_I2C_COMPLETE;
+ intel_ulpss_dev->state = USB_BRIDGE_STARTED;
+
+ return ret;
+}
diff --git a/drivers/usb/intel_ulpss/mng_stub.h b/drivers/usb/intel_ulpss/mng_stub.h
new file mode 100644
index 0000000000000..1a7a49304c753
--- /dev/null
+++ b/drivers/usb/intel_ulpss/mng_stub.h
@@ -0,0 +1,18 @@
+
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Intel LPSS USB driver
+ *
+ * Copyright (c) 2020, Intel Corporation.
+ */
+
+#ifndef __MNG_STUB_H__
+#define __MNG_STUB_H__
+#include "usb_stub.h"
+
+int mng_stub_init(struct usb_interface *intf, void *cookie, u8 len);
+int mng_get_version_string(struct usb_stub *stub, char *buf);
+int mng_set_dfu_mode(struct usb_stub *stub);
+int mng_stub_link(struct usb_interface *intf, struct usb_stub *mng_stub);
+int mng_reset(struct usb_stub *stub);
+#endif
diff --git a/drivers/usb/intel_ulpss/protocol_intel_ulpss.h b/drivers/usb/intel_ulpss/protocol_intel_ulpss.h
new file mode 100644
index 0000000000000..50a5e24d9f8fb
--- /dev/null
+++ b/drivers/usb/intel_ulpss/protocol_intel_ulpss.h
@@ -0,0 +1,173 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Intel LPSS USB driver
+ *
+ * Copyright (c) 2020, Intel Corporation.
+ */
+
+#ifndef __PROTOCOL_INTEL_ULPSS_H__
+#define __PROTOCOL_INTEL_ULPSS_H__
+
+#include <linux/types.h>
+
+/*
+* Define FW Communication protocol
+*/
+#define MAX_GPIO_NUM 20
+#define MAX_GPIO_BANK_NUM 5
+
+#define MAX_I2C_CONTROLLER_NUM 2
+
+/* command types */
+#define MNG_CMD_TYPE 1
+#define DIAG_CMD_TYPE 2
+#define GPIO_CMD_TYPE 3
+#define I2C_CMD_TYPE 4
+#define SPI_CMD_TYPE 5
+
+/* command Flags */
+#define ACK_FLAG BIT(0)
+#define RESP_FLAG BIT(1)
+#define CMPL_FLAG BIT(2)
+
+/* MNG commands */
+#define MNG_GET_VERSION 1
+#define MNG_RESET_NOTIFY 2
+#define MNG_RESET 3
+#define MNG_ENUM_GPIO 4
+#define MNG_ENUM_I2C 5
+#define MNG_POWER_STATE_CHANGE 6
+#define MNG_SET_DFU_MODE 7
+
+/* DIAG commands */
+#define DIAG_GET_STATE 0x01
+#define DIAG_GET_STATISTIC 0x02
+#define DIAG_SET_TRACE_LEVEL 0x03
+#define DIAG_SET_ECHO_MODE 0x04
+#define DIAG_GET_FW_LOG 0x05
+#define DIAG_GET_FW_COREDUMP 0x06
+#define DIAG_TRIGGER_WDT 0x07
+#define DIAG_TRIGGER_FAULT 0x08
+#define DIAG_FEED_WDT 0x09
+#define DIAG_GET_SECURE_STATE 0x0A
+
+/* GPIO commands */
+#define GPIO_CONFIG 1
+#define GPIO_READ 2
+#define GPIO_WRITE 3
+#define GPIO_INTR_NOTIFY 4
+
+/* I2C commands */
+#define I2C_INIT 1
+#define I2C_XFER 2
+#define I2C_START 3
+#define I2C_STOP 4
+#define I2C_READ 5
+#define I2C_WRITE 6
+
+#define GPIO_CONF_DISABLE BIT(0)
+#define GPIO_CONF_INPUT BIT(1)
+#define GPIO_CONF_OUTPUT BIT(2)
+#define GPIO_CONF_PULLUP BIT(3)
+#define GPIO_CONF_PULLDOWN BIT(4)
+
+/* Intentional overlap with PULLUP / PULLDOWN */
+#define GPIO_CONF_SET BIT(3)
+#define GPIO_CONF_CLR BIT(4)
+
+struct cmd_header {
+ u8 type;
+ u8 cmd;
+ u8 flags;
+ u8 len;
+ u8 data[];
+} __attribute__((packed));
+
+struct fw_version {
+ u8 major;
+ u8 minor;
+ u16 patch;
+ u16 build;
+} __attribute__((packed));
+
+struct bank_descriptor {
+ u8 bank_id;
+ u8 pin_num;
+
+ /* 1 bit for each gpio, 1 means valid */
+ u32 bitmap;
+} __attribute__((packed));
+
+struct gpio_descriptor {
+ u8 pins_per_bank;
+ u8 banks;
+ struct bank_descriptor bank_table[MAX_GPIO_BANK_NUM];
+} __attribute__((packed));
+
+struct i2c_controller_info {
+ u8 id;
+ u8 capacity;
+ u8 intr_pin;
+} __attribute__((packed));
+
+struct i2c_descriptor {
+ u8 num;
+ struct i2c_controller_info info[MAX_I2C_CONTROLLER_NUM];
+} __attribute__((packed));
+
+struct gpio_op {
+ u8 index;
+ u8 value;
+} __attribute__((packed));
+
+struct gpio_packet {
+ u8 num;
+ struct gpio_op item[0];
+} __attribute__((packed));
+
+/* I2C Transfer */
+struct i2c_xfer {
+ u8 id;
+ u8 slave;
+ u16 flag; /* speed, 8/16bit addr, addr increase, etc */
+ u16 addr;
+ u16 len;
+ u8 data[0];
+} __attribute__((packed));
+
+/* I2C raw commands: Init/Start/Read/Write/Stop */
+struct i2c_raw_io {
+ u8 id;
+ s16 len;
+ u8 data[0];
+} __attribute__((packed));
+
+#define MAX_PACKET_SIZE 64
+#define MAX_PAYLOAD_SIZE (MAX_PACKET_SIZE - sizeof(struct cmd_header))
+
+#define USB_WRITE_TIMEOUT 20
+#define USB_WRITE_ACK_TIMEOUT 100
+
+#define DEFAULT_GPIO_CONTROLLER_ID 1
+#define DEFAULT_GPIO_PIN_COUNT_PER_BANK 32
+
+#define DEFAULT_I2C_CONTROLLER_ID 1
+#define DEFAULT_I2C_CAPACITY 0
+#define DEFAULT_I2C_INTR_PIN 0
+
+/* I2C r/w Flags */
+#define I2C_SLAVE_TRANSFER_WRITE (0)
+#define I2C_SLAVE_TRANSFER_READ (1)
+
+/* i2c init flags */
+#define I2C_INIT_FLAG_MODE_MASK (1 << 0)
+#define I2C_INIT_FLAG_MODE_POLLING (0 << 0)
+#define I2C_INIT_FLAG_MODE_INTERRUPT (1 << 0)
+
+#define I2C_FLAG_ADDR_16BIT (1 << 0)
+#define I2C_INIT_FLAG_FREQ_MASK (3 << 1)
+#define I2C_FLAG_FREQ_100K (0 << 1)
+#define I2C_FLAG_FREQ_400K (1 << 1)
+#define I2C_FLAG_FREQ_1M (2 << 1)
+
+#endif
diff --git a/drivers/usb/intel_ulpss/ulpss_bridge.c b/drivers/usb/intel_ulpss/ulpss_bridge.c
new file mode 100644
index 0000000000000..55a29f2edad2b
--- /dev/null
+++ b/drivers/usb/intel_ulpss/ulpss_bridge.c
@@ -0,0 +1,529 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Intel LPSS USB driver
+ *
+ * Copyright (c) 2020, Intel Corporation.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/kfifo.h>
+#include <linux/kthread.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/uaccess.h>
+#include <linux/usb.h>
+
+#include "diag_stub.h"
+#include "i2c_stub.h"
+#include "mng_stub.h"
+#include "ulpss_bridge.h"
+
+/* Define these values to match your devices */
+#define USB_BRIDGE_VENDOR_ID 0x8086
+#define USB_BRIDGE_PRODUCT_ID 0x0b63
+
+/* table of devices that work with this driver */
+static const struct usb_device_id intel_ulpss_bridge_table[] = {
+ { USB_DEVICE(USB_BRIDGE_VENDOR_ID, USB_BRIDGE_PRODUCT_ID) },
+ {} /* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, intel_ulpss_bridge_table);
+
+static void intel_ulpss_bridge_read_cb(struct urb *urb)
+{
+ struct usb_bridge *intel_ulpss_dev;
+ struct bridge_msg msg;
+ unsigned long flags;
+ bool need_sched;
+ int ret;
+
+ intel_ulpss_dev = urb->context;
+ BUG_ON(!intel_ulpss_dev);
+ dev_dbg(&intel_ulpss_dev->intf->dev,
+ "%s bulk read urb got message from fw, status:%d data_len:%d\n",
+ __func__, urb->status, urb->actual_length);
+
+ if (urb->status || intel_ulpss_dev->errors) {
+ /* sync/async unlink faults aren't errors */
+ if (urb->status == -ENOENT || urb->status == -ECONNRESET ||
+ urb->status == -ESHUTDOWN) {
+ dev_dbg(&intel_ulpss_dev->intf->dev,
+ "%s read bulk urb unlink: %d %d\n", __func__,
+ urb->status, intel_ulpss_dev->errors);
+ return;
+ } else {
+ dev_err(&intel_ulpss_dev->intf->dev,
+ "%s read bulk urb transfer failed: %d %d\n",
+ __func__, urb->status, intel_ulpss_dev->errors);
+ goto resubmmit;
+ }
+ }
+
+ msg.len = urb->actual_length;
+ memcpy(msg.buf, intel_ulpss_dev->bulk_in_buffer, urb->actual_length);
+
+ spin_lock_irqsave(&intel_ulpss_dev->msg_fifo_spinlock, flags);
+ need_sched = kfifo_is_empty(&intel_ulpss_dev->msg_fifo);
+
+ if (kfifo_put(&intel_ulpss_dev->msg_fifo, msg)) {
+ if (need_sched)
+ schedule_work(&intel_ulpss_dev->event_work);
+ } else {
+ dev_err(&intel_ulpss_dev->intf->dev,
+ "%s put msg faild full:%d\n", __func__,
+ kfifo_is_full(&intel_ulpss_dev->msg_fifo));
+ }
+
+ spin_unlock_irqrestore(&intel_ulpss_dev->msg_fifo_spinlock, flags);
+
+resubmmit:
+ /* resubmmit urb to receive fw msg */
+ ret = usb_submit_urb(intel_ulpss_dev->bulk_in_urb, GFP_KERNEL);
+ if (ret) {
+ dev_err(&intel_ulpss_dev->intf->dev,
+ "%s failed submitting read urb, error %d\n", __func__,
+ ret);
+ }
+}
+
+static int intel_ulpss_bridge_read_start(struct usb_bridge *intel_ulpss_dev)
+{
+ int ret;
+
+ /* prepare a read */
+ usb_fill_bulk_urb(
+ intel_ulpss_dev->bulk_in_urb, intel_ulpss_dev->udev,
+ usb_rcvbulkpipe(intel_ulpss_dev->udev,
+ intel_ulpss_dev->bulk_in_endpointAddr),
+ intel_ulpss_dev->bulk_in_buffer, intel_ulpss_dev->bulk_in_size,
+ intel_ulpss_bridge_read_cb, intel_ulpss_dev);
+
+ /* submit read urb */
+ ret = usb_submit_urb(intel_ulpss_dev->bulk_in_urb, GFP_KERNEL);
+ if (ret) {
+ dev_err(&intel_ulpss_dev->intf->dev,
+ "%s - failed submitting read urb, error %d\n", __func__,
+ ret);
+ }
+ return ret;
+}
+
+static void intel_ulpss_bridge_write_cb(struct urb *urb)
+{
+ struct usb_bridge *intel_ulpss_dev;
+
+ intel_ulpss_dev = urb->context;
+
+ if (!intel_ulpss_dev)
+ return;
+
+ if (urb->status) {
+ /* sync/async unlink faults aren't errors */
+ if (urb->status == -ENOENT || urb->status == -ECONNRESET ||
+ urb->status == -ESHUTDOWN) {
+ dev_warn(&intel_ulpss_dev->intf->dev,
+ "%s write bulk urb unlink: %d\n", __func__,
+ urb->status);
+ } else {
+ dev_err(&intel_ulpss_dev->intf->dev,
+ "%s write bulk urb transfer failed: %d\n",
+ __func__, urb->status);
+
+ intel_ulpss_dev->errors = urb->status;
+ }
+ }
+
+ /* free up our allocated buffer */
+ usb_free_coherent(urb->dev, urb->transfer_buffer_length,
+ urb->transfer_buffer, urb->transfer_dma);
+
+ dev_dbg(&intel_ulpss_dev->intf->dev, "%s write callback out\n",
+ __func__);
+}
+
+ssize_t intel_ulpss_bridge_write(struct usb_interface *intf, void *data,
+ size_t len, unsigned int timeout)
+{
+ struct urb *urb = NULL;
+ struct usb_bridge *intel_ulpss_dev = usb_get_intfdata(intf);
+ char *buf = NULL;
+ int time;
+ int ret;
+
+ if (!len || len > MAX_PACKET_SIZE) {
+ dev_err(&intf->dev, "%s write len not correct len:%ld\n",
+ __func__, len);
+ return -EINVAL;
+ }
+
+ mutex_lock(&intel_ulpss_dev->write_mutex);
+ usb_autopm_get_interface(intf);
+
+ if (intel_ulpss_dev->errors) {
+ dev_err(&intf->dev, "%s dev error %d\n", __func__,
+ intel_ulpss_dev->errors);
+ intel_ulpss_dev->errors = 0;
+ ret = -EINVAL;
+ goto error;
+ }
+
+ /* create a urb, and a buffer for it, and copy the data to the urb */
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!urb) {
+ ret = -ENOMEM;
+ goto error;
+ }
+
+ buf = usb_alloc_coherent(intel_ulpss_dev->udev, len, GFP_KERNEL,
+ &urb->transfer_dma);
+
+ if (!buf) {
+ ret = -ENOMEM;
+ goto error;
+ }
+
+ memcpy(buf, data, len);
+
+ if (intel_ulpss_dev->disconnected) { /* disconnect() was called */
+ ret = -ENODEV;
+ goto error;
+ }
+
+ /* initialize the urb properly */
+ usb_fill_bulk_urb(
+ urb, intel_ulpss_dev->udev,
+ usb_sndbulkpipe(intel_ulpss_dev->udev,
+ intel_ulpss_dev->bulk_out_endpointAddr),
+ buf, len, intel_ulpss_bridge_write_cb, intel_ulpss_dev);
+ urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ usb_anchor_urb(urb, &intel_ulpss_dev->write_submitted);
+ /* send the data out the bulk port */
+ ret = usb_submit_urb(urb, GFP_KERNEL);
+ if (ret) {
+ dev_err(&intel_ulpss_dev->intf->dev,
+ "%s - failed submitting write urb, error %d\n",
+ __func__, ret);
+ goto error_unanchor;
+ }
+
+ /*
+ * release our reference to this urb, the USB core will eventually free
+ * it entirely
+ */
+ usb_free_urb(urb);
+
+ time = usb_wait_anchor_empty_timeout(&intel_ulpss_dev->write_submitted,
+ timeout);
+ if (!time) {
+ usb_kill_anchored_urbs(&intel_ulpss_dev->write_submitted);
+ dev_err(&intel_ulpss_dev->intf->dev,
+ "%s waiting out urb sending timeout, error %d %d\n",
+ __func__, time, timeout);
+ }
+
+ usb_autopm_put_interface(intf);
+ mutex_unlock(&intel_ulpss_dev->write_mutex);
+ return len;
+
+error_unanchor:
+ usb_unanchor_urb(urb);
+error:
+ if (urb) {
+ /* free up our allocated buffer */
+ usb_free_coherent(urb->dev, urb->transfer_buffer_length,
+ urb->transfer_buffer, urb->transfer_dma);
+ usb_free_urb(urb);
+ }
+
+ usb_autopm_put_interface(intf);
+ mutex_unlock(&intel_ulpss_dev->write_mutex);
+ return ret;
+}
+
+static void intel_ulpss_bridge_delete(struct usb_bridge *intel_ulpss_dev)
+{
+ usb_free_urb(intel_ulpss_dev->bulk_in_urb);
+ usb_put_intf(intel_ulpss_dev->intf);
+ usb_put_dev(intel_ulpss_dev->udev);
+ kfree(intel_ulpss_dev->bulk_in_buffer);
+ kfree(intel_ulpss_dev);
+}
+
+static int intel_ulpss_bridge_init(struct usb_bridge *intel_ulpss_dev)
+{
+ mutex_init(&intel_ulpss_dev->write_mutex);
+ init_usb_anchor(&intel_ulpss_dev->write_submitted);
+ init_waitqueue_head(&intel_ulpss_dev->bulk_out_ack);
+ INIT_LIST_HEAD(&intel_ulpss_dev->stubs_list);
+ INIT_KFIFO(intel_ulpss_dev->msg_fifo);
+ spin_lock_init(&intel_ulpss_dev->msg_fifo_spinlock);
+
+ intel_ulpss_dev->state = USB_BRIDGE_INITED;
+
+ return 0;
+}
+
+static ssize_t cmd_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct usb_stub *mng_stub = usb_stub_find(intf, MNG_CMD_TYPE);
+ struct usb_stub *diag_stub = usb_stub_find(intf, DIAG_CMD_TYPE);
+ int ret;
+
+ dev_dbg(dev, "%s:%u %s\n", __func__, __LINE__, buf);
+ if (sysfs_streq(buf, "dfu")) {
+ ret = mng_set_dfu_mode(mng_stub);
+ } else if (sysfs_streq(buf, "reset")) {
+ ret = mng_reset(mng_stub);
+ } else if (sysfs_streq(buf, "debug")) {
+ ret = diag_set_trace_level(diag_stub, 3);
+ }
+
+ return count;
+}
+
+static ssize_t cmd_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ dev_dbg(dev, "%s:%u \n", __func__, __LINE__);
+
+ return sprintf(buf, "%s\n", "supported cmd: [dfu, reset, debug]");
+}
+static DEVICE_ATTR_RW(cmd);
+
+static ssize_t version_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct usb_stub *mng_stub = usb_stub_find(intf, MNG_CMD_TYPE);
+
+ dev_dbg(dev, "%s:%u\n", __func__, __LINE__);
+ return mng_get_version_string(mng_stub, buf);
+}
+static DEVICE_ATTR_RO(version);
+
+static ssize_t log_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ int ret;
+ ssize_t len;
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct usb_stub *diag_stub = usb_stub_find(intf, DIAG_CMD_TYPE);
+
+ ret = diag_get_fw_log(diag_stub, buf, &len);
+ dev_dbg(dev, "%s:%u len %ld\n", __func__, __LINE__, len);
+
+ if (ret)
+ return ret;
+ else
+ return len;
+}
+static DEVICE_ATTR_RO(log);
+
+static ssize_t coredump_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ int ret;
+ ssize_t len;
+ struct usb_interface *intf = to_usb_interface(dev);
+ struct usb_stub *diag_stub = usb_stub_find(intf, DIAG_CMD_TYPE);
+
+ ret = diag_get_coredump(diag_stub, buf, &len);
+ dev_dbg(dev, "%s:%u len %ld\n", __func__, __LINE__, len);
+
+ if (ret)
+ return ret;
+ else
+ return len;
+}
+static DEVICE_ATTR_RO(coredump);
+
+static struct attribute *intel_ulpss_bridge_attrs[] = {
+ &dev_attr_version.attr,
+ &dev_attr_cmd.attr,
+ &dev_attr_log.attr,
+ &dev_attr_coredump.attr,
+ NULL,
+};
+ATTRIBUTE_GROUPS(intel_ulpss_bridge);
+
+static int intel_ulpss_bridge_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usb_bridge *intel_ulpss_dev;
+ struct usb_endpoint_descriptor *bulk_in, *bulk_out;
+ struct usb_stub *stub;
+ int ret;
+
+ /* allocate memory for our device state and initialize it */
+ intel_ulpss_dev = kzalloc(sizeof(*intel_ulpss_dev), GFP_KERNEL);
+ if (!intel_ulpss_dev)
+ return -ENOMEM;
+
+ intel_ulpss_bridge_init(intel_ulpss_dev);
+ intel_ulpss_dev->udev = usb_get_dev(interface_to_usbdev(intf));
+ intel_ulpss_dev->intf = usb_get_intf(intf);
+
+ /* set up the endpoint information */
+ /* use only the first bulk-in and bulk-out endpoints */
+ ret = usb_find_common_endpoints(intf->cur_altsetting, &bulk_in,
+ &bulk_out, NULL, NULL);
+ if (ret) {
+ dev_err(&intf->dev,
+ "Could not find both bulk-in and bulk-out endpoints\n");
+ goto error;
+ }
+
+ intel_ulpss_dev->bulk_in_size = usb_endpoint_maxp(bulk_in);
+ intel_ulpss_dev->bulk_in_endpointAddr = bulk_in->bEndpointAddress;
+ intel_ulpss_dev->bulk_in_buffer =
+ kzalloc(intel_ulpss_dev->bulk_in_size, GFP_KERNEL);
+ if (!intel_ulpss_dev->bulk_in_buffer) {
+ ret = -ENOMEM;
+ goto error;
+ }
+ intel_ulpss_dev->bulk_in_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!intel_ulpss_dev->bulk_in_urb) {
+ ret = -ENOMEM;
+ goto error;
+ }
+ intel_ulpss_dev->bulk_out_endpointAddr = bulk_out->bEndpointAddress;
+
+ dev_dbg(&intf->dev, "bulk_in size:%ld addr:%d bulk_out addr:%d\n",
+ intel_ulpss_dev->bulk_in_size,
+ intel_ulpss_dev->bulk_in_endpointAddr,
+ intel_ulpss_dev->bulk_out_endpointAddr);
+
+ /* save our data pointer in this intf device */
+ usb_set_intfdata(intf, intel_ulpss_dev);
+
+ ret = intel_ulpss_bridge_read_start(intel_ulpss_dev);
+ if (ret) {
+ dev_err(&intf->dev, "%s bridge read start failed ret %d\n",
+ __func__, ret);
+ goto error;
+ }
+
+ ret = usb_stub_init(intf);
+ if (ret) {
+ dev_err(&intf->dev, "%s usb stub init failed ret %d\n",
+ __func__, ret);
+ usb_set_intfdata(intf, NULL);
+ goto error;
+ }
+
+ ret = mng_stub_init(intf, NULL, 0);
+ if (ret) {
+ dev_err(&intf->dev, "%s register mng stub failed ret %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = diag_stub_init(intf, NULL, 0);
+ if (ret) {
+ dev_err(&intf->dev, "%s register diag stub failed ret %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ stub = usb_stub_find(intf, MNG_CMD_TYPE);
+ if (!stub) {
+ ret = -EINVAL;
+ return ret;
+ }
+
+ ret = mng_stub_link(intf, stub);
+ if (intel_ulpss_dev->state != USB_BRIDGE_STARTED) {
+ dev_err(&intf->dev, "%s mng stub link done ret:%d state:%d\n",
+ __func__, ret, intel_ulpss_dev->state);
+ return ret;
+ }
+
+ usb_enable_autosuspend(intel_ulpss_dev->udev);
+ dev_info(&intf->dev, "intel_ulpss USB bridge device init success\n");
+ return 0;
+
+error:
+ /* this frees allocated memory */
+ intel_ulpss_bridge_delete(intel_ulpss_dev);
+
+ return ret;
+}
+
+static void intel_ulpss_bridge_disconnect(struct usb_interface *intf)
+{
+ struct usb_bridge *intel_ulpss_dev;
+
+ intel_ulpss_dev = usb_get_intfdata(intf);
+ intel_ulpss_dev->disconnected = 1;
+
+ usb_kill_urb(intel_ulpss_dev->bulk_in_urb);
+ usb_kill_anchored_urbs(&intel_ulpss_dev->write_submitted);
+
+ usb_stub_cleanup(intf);
+ intel_ulpss_dev->state = USB_BRIDGE_STOPPED;
+
+ cancel_work_sync(&intel_ulpss_dev->event_work);
+
+ usb_set_intfdata(intf, NULL);
+ /* decrement our usage len */
+ intel_ulpss_bridge_delete(intel_ulpss_dev);
+
+ dev_dbg(&intf->dev, "USB bridge now disconnected\n");
+}
+
+static void intel_ulpss_bridge_draw_down(struct usb_bridge *intel_ulpss_dev)
+{
+ int time;
+
+ time = usb_wait_anchor_empty_timeout(&intel_ulpss_dev->write_submitted,
+ 1000);
+ if (!time)
+ usb_kill_anchored_urbs(&intel_ulpss_dev->write_submitted);
+ usb_kill_urb(intel_ulpss_dev->bulk_in_urb);
+}
+
+static int intel_ulpss_bridge_suspend(struct usb_interface *intf,
+ pm_message_t message)
+{
+ struct usb_bridge *intel_ulpss_dev = usb_get_intfdata(intf);
+ dev_dbg(&intf->dev, "USB bridge now suspend\n");
+
+ intel_ulpss_bridge_draw_down(intel_ulpss_dev);
+ return 0;
+}
+
+static int intel_ulpss_bridge_resume(struct usb_interface *intf)
+{
+ int ret;
+ struct usb_bridge *intel_ulpss_dev = usb_get_intfdata(intf);
+ dev_dbg(&intf->dev, "USB bridge now resume\n");
+
+ ret = intel_ulpss_bridge_read_start(intel_ulpss_dev);
+ if (ret) {
+ dev_err(&intf->dev, "%s bridge read start failed ret %d\n",
+ __func__, ret);
+ }
+ return ret;
+}
+static struct usb_driver bridge_driver = {
+ .name = "intel_ulpss",
+ .probe = intel_ulpss_bridge_probe,
+ .disconnect = intel_ulpss_bridge_disconnect,
+ .suspend = intel_ulpss_bridge_suspend,
+ .resume = intel_ulpss_bridge_resume,
+ .id_table = intel_ulpss_bridge_table,
+ .dev_groups = intel_ulpss_bridge_groups,
+ .supports_autosuspend = 1,
+};
+
+module_usb_driver(bridge_driver);
+
+MODULE_AUTHOR("Ye Xiang <xiang.ye at intel.com>");
+MODULE_AUTHOR("Zhang Lixu <lixu.zhang at intel.com>");
+MODULE_DESCRIPTION("Intel LPSS USB driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/intel_ulpss/ulpss_bridge.h b/drivers/usb/intel_ulpss/ulpss_bridge.h
new file mode 100644
index 0000000000000..bcdf15e79f3c5
--- /dev/null
+++ b/drivers/usb/intel_ulpss/ulpss_bridge.h
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Intel LPSS USB driver
+ *
+ * Copyright (c) 2020, Intel Corporation.
+ */
+
+#ifndef __ULPSS_BRIDGE_H__
+#define __ULPSS_BRIDGE_H__
+
+#include <linux/kfifo.h>
+#include <linux/types.h>
+#include <linux/usb.h>
+#include "usb_stub.h"
+
+struct bridge_msg {
+ size_t len;
+ u8 buf[MAX_PACKET_SIZE];
+ unsigned long read_time;
+};
+
+enum USB_BRIDGE_STATE {
+ USB_BRIDGE_STOPPED = 0,
+ USB_BRIDGE_INITED,
+ USB_BRIDGE_START_SYNCING,
+ USB_BRIDGE_START_DISPATCH_STARTED,
+ USB_BRIDGE_START_READ_STARTED,
+ USB_BRIDGE_RESET_HANDSHAKE,
+ USB_BRIDGE_RESET_SYNCED,
+ USB_BRIDGE_ENUM_GPIO_PENDING,
+ USB_BRIDGE_ENUM_GPIO_COMPLETE,
+ USB_BRIDGE_ENUM_I2C_PENDING,
+ USB_BRIDGE_ENUM_I2C_COMPLETE,
+ USB_BRIDGE_STARTED,
+ USB_BRIDGE_FAILED,
+};
+
+struct usb_bridge {
+ struct usb_device *udev;
+ struct usb_interface *intf;
+ u8 bulk_in_endpointAddr; /* the address of the bulk in endpoint */
+ u8 bulk_out_endpointAddr; /* the address of the bulk out endpoint */
+ /* in case we need to retract our submissions */
+ struct usb_anchor write_submitted;
+
+ /* the urb to read data with */
+ struct urb *bulk_in_urb;
+ /* the buffer to receive data */
+ unsigned char *bulk_in_buffer;
+ size_t bulk_in_size;
+
+ /* bridge status */
+ int errors; /* the last request tanked */
+ unsigned int disconnected;
+ int state;
+
+ struct mutex write_mutex;
+
+ /* stub */
+ size_t stub_count;
+ struct list_head stubs_list;
+
+ /* buffers to store bridge msg temporary */
+ DECLARE_KFIFO(msg_fifo, struct bridge_msg, 16);
+ spinlock_t msg_fifo_spinlock;
+
+ /* dispatch message from fw */
+ struct work_struct event_work;
+
+ /* to wait for an ongoing write ack */
+ wait_queue_head_t bulk_out_ack;
+};
+
+ssize_t intel_ulpss_bridge_write(struct usb_interface *intf, void *data, size_t len,
+ unsigned int timeout);
+
+#endif /* __ULPSS_BRIDGE_H__ */
diff --git a/drivers/usb/intel_ulpss/usb_stub.c b/drivers/usb/intel_ulpss/usb_stub.c
new file mode 100644
index 0000000000000..77fd3ef1f53ab
--- /dev/null
+++ b/drivers/usb/intel_ulpss/usb_stub.c
@@ -0,0 +1,285 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Intel LPSS USB driver
+ *
+ * Copyright (c) 2020, Intel Corporation.
+ */
+
+#include <linux/acpi.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+
+#include "protocol_intel_ulpss.h"
+#include "ulpss_bridge.h"
+
+#define MAKE_CMD_ID(type, cmd) ((type << 8) | cmd)
+static bool usb_stub_validate(u8 *data, u32 data_len)
+{
+ bool is_valid = true;
+ struct cmd_header *header = (struct cmd_header *)data;
+
+ /* verify the respone flag */
+ if (header->cmd != GPIO_INTR_NOTIFY &&
+ ((header->flags & RESP_FLAG) == 0))
+ is_valid = false;
+
+ /* verify the payload len */
+ is_valid = is_valid && (header->len + sizeof(*header) == data_len);
+
+ return is_valid;
+}
+
+static int usb_stub_parse(struct usb_stub *stub, struct cmd_header *header)
+{
+ int ret = 0;
+
+ if (!stub || !header || (header->len < 0))
+ return -EINVAL;
+
+ stub->len = header->len;
+
+ if (header->len == 0)
+ return 0;
+
+ memcpy(stub->buf, header->data, header->len);
+ if (stub->parse)
+ ret = stub->parse(stub, header->cmd, header->flags,
+ header->data, header->len);
+
+ return ret;
+}
+
+/*
+ * Bottom half processing work function (instead of thread handler)
+ * for processing fw messages
+ */
+static void event_work_cb(struct work_struct *work)
+{
+ struct usb_bridge *intel_ulpss_dev;
+ struct bridge_msg msg_in_proc = { 0 };
+ struct usb_stub *stub;
+ struct cmd_header *header;
+ int rcv_cmd_id;
+ int ret;
+
+ intel_ulpss_dev = container_of(work, struct usb_bridge, event_work);
+ BUG_ON(!intel_ulpss_dev);
+
+ while (kfifo_get(&intel_ulpss_dev->msg_fifo, &msg_in_proc)) {
+ if (!msg_in_proc.len)
+ continue;
+
+ header = (struct cmd_header *)msg_in_proc.buf;
+
+ dev_dbg(&intel_ulpss_dev->intf->dev,
+ "receive: type:%d cmd:%d flags:%d len:%d\n",
+ header->type, header->cmd, header->flags, header->len);
+
+ /* verify the data */
+ if (!usb_stub_validate(msg_in_proc.buf, msg_in_proc.len)) {
+ dev_err(&intel_ulpss_dev->intf->dev,
+ "%s header->len:%d payload_len:%ld\n ",
+ __func__, header->len, msg_in_proc.len);
+ continue;
+ }
+
+ stub = usb_stub_find(intel_ulpss_dev->intf, header->type);
+ ret = usb_stub_parse(stub, header);
+ if (ret) {
+ dev_err(&intel_ulpss_dev->intf->dev,
+ "%s failed to parse data: ret:%d type:%d len: %d",
+ __func__, ret, header->type, header->len);
+ continue;
+ }
+
+ rcv_cmd_id = MAKE_CMD_ID(stub->type, header->cmd);
+ if (rcv_cmd_id == stub->cmd_id) {
+ stub->acked = true;
+ wake_up_interruptible(&intel_ulpss_dev->bulk_out_ack);
+
+ } else {
+ dev_warn(&intel_ulpss_dev->intf->dev,
+ "%s rcv_cmd_id:%x != stub->cmd_id:%x",
+ __func__, rcv_cmd_id, stub->cmd_id);
+ }
+ }
+}
+
+struct usb_stub *usb_stub_alloc(struct usb_interface *intf)
+{
+ struct usb_bridge *intel_ulpss_dev = usb_get_intfdata(intf);
+ struct usb_stub *cur_stub;
+
+ cur_stub = kzalloc(sizeof(struct usb_stub), GFP_KERNEL);
+ if (!cur_stub) {
+ dev_err(&intf->dev, "%s no memory for new stub", __func__);
+ return NULL;
+ }
+
+ mutex_init(&cur_stub->stub_mutex);
+ INIT_LIST_HEAD(&cur_stub->list);
+
+ list_add_tail(&cur_stub->list, &intel_ulpss_dev->stubs_list);
+ intel_ulpss_dev->stub_count++;
+ dev_dbg(&intf->dev,
+ "%s enuming stub intel_ulpss_dev->stub_count:%ld type:%d success\n",
+ __func__, intel_ulpss_dev->stub_count, cur_stub->type);
+
+ return cur_stub;
+}
+
+int usb_stub_init(struct usb_interface *intf)
+{
+ struct usb_bridge *intel_ulpss_dev = usb_get_intfdata(intf);
+
+ if (!intel_ulpss_dev)
+ return -EINVAL;
+
+ INIT_WORK(&intel_ulpss_dev->event_work, event_work_cb);
+
+ return 0;
+}
+
+struct usb_stub *usb_stub_find(struct usb_interface *intf, u8 type)
+{
+ struct usb_bridge *intel_ulpss_dev = usb_get_intfdata(intf);
+ struct usb_stub *cur_stub;
+
+ if (!intel_ulpss_dev)
+ return NULL;
+
+ list_for_each_entry (cur_stub, &intel_ulpss_dev->stubs_list, list) {
+ if (cur_stub->type == type)
+ return cur_stub;
+ }
+
+ dev_err(&intf->dev, "%s usb stub not find, type: %d", __func__, type);
+ return NULL;
+}
+
+int usb_stub_write(struct usb_stub *stub, u8 cmd, u8 *data, u8 len,
+ bool wait_ack, long timeout)
+{
+ int ret;
+ u8 flags = 0;
+ u8 buff[MAX_PACKET_SIZE] = { 0 };
+
+ struct cmd_header *header;
+ struct usb_bridge *intel_ulpss_dev = usb_get_intfdata(stub->intf);
+
+ if (!stub || !intel_ulpss_dev)
+ return -EINVAL;
+
+ header = (struct cmd_header *)buff;
+ if (len >= MAX_PAYLOAD_SIZE)
+ return -ENOMEM;
+
+ if (wait_ack)
+ flags |= ACK_FLAG;
+
+ flags |= CMPL_FLAG;
+
+ header->type = stub->type;
+ header->cmd = cmd;
+ header->flags = flags;
+ header->len = len;
+
+ memcpy(header->data, data, len);
+ dev_dbg(&intel_ulpss_dev->intf->dev,
+ "send: type:%d cmd:%d flags:%d len:%d\n", header->type,
+ header->cmd, header->flags, header->len);
+
+ stub->cmd_id = MAKE_CMD_ID(stub->type, cmd);
+
+ ret = intel_ulpss_bridge_write(
+ stub->intf, header, sizeof(struct cmd_header) + len, timeout);
+
+ if (ret != sizeof(struct cmd_header) + len) {
+ dev_err(&intel_ulpss_dev->intf->dev,
+ "%s bridge write failed ret:%d total_len:%ld\n ",
+ __func__, ret, sizeof(struct cmd_header) + len);
+ return -EIO;
+ }
+
+ if (flags & ACK_FLAG) {
+ ret = wait_event_interruptible_timeout(
+ intel_ulpss_dev->bulk_out_ack, (stub->acked), timeout);
+ stub->acked = false;
+
+ if (ret < 0) {
+ dev_err(&intel_ulpss_dev->intf->dev,
+ "acked wait interrupted ret:%d timeout:%ld ack:%d\n",
+ ret, timeout, stub->acked);
+ return ret;
+
+ } else if (ret == 0) {
+ dev_err(&intel_ulpss_dev->intf->dev,
+ "acked sem wait timed out ret:%d timeout:%ld ack:%d\n",
+ ret, timeout, stub->acked);
+ return -ETIMEDOUT;
+ }
+ }
+
+ return 0;
+}
+
+void usb_stub_broadcast(struct usb_interface *intf, long event,
+ void *event_data)
+{
+ int ret = 0;
+ struct usb_stub *cur_stub = NULL;
+ struct usb_bridge *intel_ulpss_dev = usb_get_intfdata(intf);
+
+ if (!intel_ulpss_dev)
+ return;
+
+ list_for_each_entry (cur_stub, &intel_ulpss_dev->stubs_list, list) {
+ if (cur_stub && cur_stub->notify) {
+ ret = cur_stub->notify(cur_stub, event, event_data);
+ if (ret)
+ continue;
+ }
+ }
+}
+
+void usb_stub_cleanup(struct usb_interface *intf)
+{
+ struct usb_stub *cur_stub = NULL;
+ struct usb_stub *next = NULL;
+ struct usb_bridge *intel_ulpss_dev = usb_get_intfdata(intf);
+
+ if (!intel_ulpss_dev)
+ return;
+
+ list_for_each_entry_safe (cur_stub, next, &intel_ulpss_dev->stubs_list,
+ list) {
+ if (!cur_stub)
+ continue;
+
+ list_del_init(&cur_stub->list);
+ dev_dbg(&intf->dev, "%s type:%d\n ", __func__, cur_stub->type);
+ if (cur_stub->cleanup)
+ cur_stub->cleanup(cur_stub);
+
+ mutex_destroy(&cur_stub->stub_mutex);
+ kfree(cur_stub);
+
+ intel_ulpss_dev->stub_count--;
+ }
+}
+
+struct acpi_device *find_adev_by_hid(struct acpi_device *parent,
+ const char *hid)
+{
+ struct acpi_device *adev;
+
+ if (!parent)
+ return NULL;
+
+ list_for_each_entry (adev, &parent->children, node) {
+ if (!strcmp(hid, acpi_device_hid(adev)))
+ return adev;
+ }
+
+ return NULL;
+}
diff --git a/drivers/usb/intel_ulpss/usb_stub.h b/drivers/usb/intel_ulpss/usb_stub.h
new file mode 100644
index 0000000000000..9efa047079ca5
--- /dev/null
+++ b/drivers/usb/intel_ulpss/usb_stub.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Intel LPSS USB driver
+ *
+ * Copyright (c) 2020, Intel Corporation.
+ */
+
+#ifndef __USB_STUB_H__
+#define __USB_STUB_H__
+
+#include <linux/acpi.h>
+#include <linux/types.h>
+
+#include "protocol_intel_ulpss.h"
+
+#define GPIO_INTR_EVENT 2
+
+struct usb_stub {
+ struct list_head list;
+ u8 type;
+ struct usb_interface *intf;
+
+ struct mutex stub_mutex;
+ u8 buf[MAX_PAYLOAD_SIZE];
+ u32 len;
+
+ bool acked;
+ /** for identify ack */
+ int cmd_id;
+
+ int (*parse)(struct usb_stub *stub, u8 cmd, u8 flags, u8 *data,
+ u32 len);
+ int (*notify)(struct usb_stub *stub, long event, void *evt_data);
+ void (*cleanup)(struct usb_stub *stub);
+ void *priv;
+};
+
+int usb_stub_init(struct usb_interface *intf);
+struct usb_stub *usb_stub_find(struct usb_interface *intf, u8 type);
+int usb_stub_write(struct usb_stub *stub, u8 cmd, u8 *data, u8 len,
+ bool wait_ack, long timeout);
+void usb_stub_broadcast(struct usb_interface *intf, long event,
+ void *event_data);
+void usb_stub_cleanup(struct usb_interface *intf);
+struct usb_stub *usb_stub_alloc(struct usb_interface *intf);
+
+struct acpi_device *find_adev_by_hid(struct acpi_device *parent,
+ const char *hid);
+#endif
diff --git a/include/linux/mfd/ljca.h b/include/linux/mfd/ljca.h
new file mode 100644
index 0000000000000..2c19f2de58ce8
--- /dev/null
+++ b/include/linux/mfd/ljca.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __LINUX_USB_LJCA_H
+#define __LINUX_USB_LJCA_H
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/types.h>
+
+#define MAX_GPIO_NUM 64
+
+struct ljca_gpio_info {
+ int num;
+ DECLARE_BITMAP(valid_pin_map, MAX_GPIO_NUM);
+};
+
+struct ljca_i2c_info {
+ u8 id;
+ u8 capacity;
+ u8 intr_pin;
+};
+
+struct ljca_spi_info {
+ u8 id;
+ u8 capacity;
+};
+
+struct ljca_platform_data {
+ int type;
+ union {
+ struct ljca_gpio_info gpio_info;
+ struct ljca_i2c_info i2c_info;
+ struct ljca_spi_info spi_info;
+ };
+};
+
+typedef void (*ljca_event_cb_t)(struct platform_device *pdev, u8 cmd,
+ const void *evt_data, int len);
+
+int ljca_register_event_cb(struct platform_device *pdev,
+ ljca_event_cb_t event_cb);
+void ljca_unregister_event_cb(struct platform_device *pdev);
+int ljca_transfer(struct platform_device *pdev, u8 cmd, const void *obuf,
+ int obuf_len, void *ibuf, int *ibuf_len);
+int ljca_transfer_noack(struct platform_device *pdev, u8 cmd, const void *obuf,
+ int obuf_len);
+
+#endif
diff --git a/include/linux/vsc.h b/include/linux/vsc.h
new file mode 100644
index 0000000000000..8f8d40493dc65
--- /dev/null
+++ b/include/linux/vsc.h
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _LINUX_VSC_H_
+#define _LINUX_VSC_H_
+
+#include <linux/types.h>
+
+/**
+ * @brief VSC camera ownership definition
+ */
+enum vsc_camera_owner {
+ VSC_CAMERA_NONE = 0,
+ VSC_CAMERA_CVF,
+ VSC_CAMERA_IPU,
+};
+
+/**
+ * @brief VSC privacy status definition
+ */
+enum vsc_privacy_status {
+ VSC_PRIVACY_ON = 0,
+ VSC_PRIVACY_OFF,
+};
+
+/**
+ * @brief VSC MIPI configuration definition
+ */
+struct vsc_mipi_config {
+ uint32_t freq;
+ uint32_t lane_num;
+};
+
+/**
+ * @brief VSC camera status definition
+ */
+struct vsc_camera_status {
+ enum vsc_camera_owner owner;
+ enum vsc_privacy_status status;
+ uint32_t exposure_level;
+};
+
+/**
+ * @brief VSC privacy callback type definition
+ *
+ * @param context Privacy callback handle
+ * @param status Current privacy status
+ */
+typedef void (*vsc_privacy_callback_t)(void *handle,
+ enum vsc_privacy_status status);
+
+/**
+ * @brief Acquire camera sensor ownership to IPU
+ *
+ * @param config[IN] The pointer of MIPI configuration going to set
+ * @param callback[IN] The pointer of privacy callback function
+ * @param handle[IN] Privacy callback function runtime handle from IPU driver
+ * @param status[OUT] The pointer of camera status after the acquire
+ *
+ * @retval 0 If success
+ * @retval -EIO IO error
+ * @retval -EINVAL Invalid argument
+ * @retval -EAGAIN VSC device not ready
+ * @retval negative values for other errors
+ */
+int vsc_acquire_camera_sensor(struct vsc_mipi_config *config,
+ vsc_privacy_callback_t callback,
+ void *handle,
+ struct vsc_camera_status *status);
+
+/**
+ * @brief Release camera sensor ownership
+ *
+ * @param status[OUT] Camera status after the release
+ *
+ * @retval 0 If success
+ * @retval -EIO IO error
+ * @retval -EINVAL Invalid argument
+ * @retval -EAGAIN VSC device not ready
+ * @retval negative values for other errors
+ */
+int vsc_release_camera_sensor(struct vsc_camera_status *status);
+
+#endif
diff --git a/include/media/ipu-isys.h b/include/media/ipu-isys.h
new file mode 100644
index 0000000000000..ed202c7c6134a
--- /dev/null
+++ b/include/media/ipu-isys.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2014 - 2020 Intel Corporation */
+
+#ifndef MEDIA_IPU_H
+#define MEDIA_IPU_H
+
+#include <linux/i2c.h>
+#include <linux/clkdev.h>
+#include <media/v4l2-async.h>
+
+#define IPU_ISYS_MAX_CSI2_LANES 4
+
+struct ipu_isys_csi2_config {
+ unsigned int nlanes;
+ unsigned int port;
+};
+
+struct ipu_isys_subdev_i2c_info {
+ struct i2c_board_info board_info;
+ int i2c_adapter_id;
+ char i2c_adapter_bdf[32];
+};
+
+struct ipu_isys_subdev_info {
+ struct ipu_isys_csi2_config *csi2;
+ struct ipu_isys_subdev_i2c_info i2c;
+};
+
+struct ipu_isys_clk_mapping {
+ struct clk_lookup clkdev_data;
+ char *platform_clock_name;
+};
+
+struct ipu_isys_subdev_pdata {
+ struct ipu_isys_subdev_info **subdevs;
+ struct ipu_isys_clk_mapping *clk_map;
+};
+
+struct sensor_async_subdev {
+ struct v4l2_async_subdev asd;
+ struct ipu_isys_csi2_config csi2;
+};
+
+#endif /* MEDIA_IPU_H */
diff --git a/include/uapi/linux/ipu-isys.h b/include/uapi/linux/ipu-isys.h
new file mode 100644
index 0000000000000..4aabb14328a52
--- /dev/null
+++ b/include/uapi/linux/ipu-isys.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/* Copyright (C) 2016 - 2020 Intel Corporation */
+
+#ifndef UAPI_LINUX_IPU_ISYS_H
+#define UAPI_LINUX_IPU_ISYS_H
+
+#define V4L2_CID_IPU_BASE (V4L2_CID_USER_BASE + 0x1080)
+
+#define V4L2_CID_IPU_STORE_CSI2_HEADER (V4L2_CID_IPU_BASE + 2)
+#define V4L2_CID_IPU_ISYS_COMPRESSION (V4L2_CID_IPU_BASE + 3)
+
+#define VIDIOC_IPU_GET_DRIVER_VERSION \
+ _IOWR('v', BASE_VIDIOC_PRIVATE + 3, uint32_t)
+
+#endif /* UAPI_LINUX_IPU_ISYS_H */
diff --git a/include/uapi/linux/ipu-psys.h b/include/uapi/linux/ipu-psys.h
new file mode 100644
index 0000000000000..30538e7060629
--- /dev/null
+++ b/include/uapi/linux/ipu-psys.h
@@ -0,0 +1,121 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/* Copyright (C) 2013 - 2020 Intel Corporation */
+
+#ifndef _UAPI_IPU_PSYS_H
+#define _UAPI_IPU_PSYS_H
+
+#ifdef __KERNEL__
+#include <linux/types.h>
+#else
+#include <stdint.h>
+#endif
+
+struct ipu_psys_capability {
+ uint32_t version;
+ uint8_t driver[20];
+ uint32_t pg_count;
+ uint8_t dev_model[32];
+ uint32_t reserved[17];
+} __attribute__ ((packed));
+
+struct ipu_psys_event {
+ uint32_t type; /* IPU_PSYS_EVENT_TYPE_ */
+ uint64_t user_token;
+ uint64_t issue_id;
+ uint32_t buffer_idx;
+ uint32_t error;
+ int32_t reserved[2];
+} __attribute__ ((packed));
+
+#define IPU_PSYS_EVENT_TYPE_CMD_COMPLETE 1
+#define IPU_PSYS_EVENT_TYPE_BUFFER_COMPLETE 2
+
+/**
+ * struct ipu_psys_buffer - for input/output terminals
+ * @len: total allocated size @ base address
+ * @userptr: user pointer
+ * @fd: DMA-BUF handle
+ * @data_offset:offset to valid data
+ * @bytes_used: amount of valid data including offset
+ * @flags: flags
+ */
+struct ipu_psys_buffer {
+ uint64_t len;
+ union {
+ int fd;
+ void __user *userptr;
+ uint64_t reserved;
+ } base;
+ uint32_t data_offset;
+ uint32_t bytes_used;
+ uint32_t flags;
+ uint32_t reserved[2];
+} __attribute__ ((packed));
+
+#define IPU_BUFFER_FLAG_INPUT (1 << 0)
+#define IPU_BUFFER_FLAG_OUTPUT (1 << 1)
+#define IPU_BUFFER_FLAG_MAPPED (1 << 2)
+#define IPU_BUFFER_FLAG_NO_FLUSH (1 << 3)
+#define IPU_BUFFER_FLAG_DMA_HANDLE (1 << 4)
+#define IPU_BUFFER_FLAG_USERPTR (1 << 5)
+
+#define IPU_PSYS_CMD_PRIORITY_HIGH 0
+#define IPU_PSYS_CMD_PRIORITY_MED 1
+#define IPU_PSYS_CMD_PRIORITY_LOW 2
+#define IPU_PSYS_CMD_PRIORITY_NUM 3
+
+/**
+ * struct ipu_psys_command - processing command
+ * @issue_id: unique id for the command set by user
+ * @user_token: token of the command
+ * @priority: priority of the command
+ * @pg_manifest: userspace pointer to program group manifest
+ * @buffers: userspace pointers to array of psys dma buf structs
+ * @pg: process group DMA-BUF handle
+ * @pg_manifest_size: size of program group manifest
+ * @bufcount: number of buffers in buffers array
+ * @min_psys_freq: minimum psys frequency in MHz used for this cmd
+ * @frame_counter: counter of current frame synced between isys and psys
+ * @kernel_enable_bitmap: enable bits for each individual kernel
+ * @terminal_enable_bitmap: enable bits for each individual terminals
+ * @routing_enable_bitmap: enable bits for each individual routing
+ * @rbm: enable bits for routing
+ *
+ * Specifies a processing command with input and output buffers.
+ */
+struct ipu_psys_command {
+ uint64_t issue_id;
+ uint64_t user_token;
+ uint32_t priority;
+ void __user *pg_manifest;
+ struct ipu_psys_buffer __user *buffers;
+ int pg;
+ uint32_t pg_manifest_size;
+ uint32_t bufcount;
+ uint32_t min_psys_freq;
+ uint32_t frame_counter;
+ uint32_t kernel_enable_bitmap[4];
+ uint32_t terminal_enable_bitmap[4];
+ uint32_t routing_enable_bitmap[4];
+ uint32_t rbm[5];
+ uint32_t reserved[2];
+} __attribute__ ((packed));
+
+struct ipu_psys_manifest {
+ uint32_t index;
+ uint32_t size;
+ void __user *manifest;
+ uint32_t reserved[5];
+} __attribute__ ((packed));
+
+#define IPU_IOC_QUERYCAP _IOR('A', 1, struct ipu_psys_capability)
+#define IPU_IOC_MAPBUF _IOWR('A', 2, int)
+#define IPU_IOC_UNMAPBUF _IOWR('A', 3, int)
+#define IPU_IOC_GETBUF _IOWR('A', 4, struct ipu_psys_buffer)
+#define IPU_IOC_PUTBUF _IOWR('A', 5, struct ipu_psys_buffer)
+#define IPU_IOC_QCMD _IOWR('A', 6, struct ipu_psys_command)
+#define IPU_IOC_DQEVENT _IOWR('A', 7, struct ipu_psys_event)
+#define IPU_IOC_CMD_CANCEL _IOWR('A', 8, struct ipu_psys_command)
+#define IPU_IOC_GET_MANIFEST _IOWR('A', 9, struct ipu_psys_manifest)
+
+#endif /* _UAPI_IPU_PSYS_H */
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