[Saucy][PATCH 1/5] UBUNTU: SAUCE: Bluetooth: Support for loading broadcom patchram firmware
Wen-chien Jesse Sung
jesse.sung at canonical.com
Fri Sep 6 12:07:28 UTC 2013
BugLink: https://launchpad.net/bugs/1065400
There is an user space firmware loading tool which can be found at
http://marc.info/?l=linux-bluetooth&m=132039175324993&w=2
The supported firmware is in hcd format, which is a collection of
hci commands. The download process would be:
1. reset command
2. download command
3. firmware image in hcd file
4. reset command
/sys/kernel/debug/usb/devices before loading firmware:
T: Bus=01 Lev=02 Prnt=02 Port=04 Cnt=02 Dev#= 4 Spd=12 MxCh= 0
D: Ver= 2.00 Cls=ff(vend.) Sub=01 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=0a5c ProdID=21d3 Rev= 1.12
S: Manufacturer=Broadcom Corp
S: Product=BCM43142A0
S: SerialNumber=3859F9D6199A
C:* #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none)
E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none)
E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms
I: If#= 1 Alt= 1 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none)
E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms
I: If#= 1 Alt= 2 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none)
E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms
I: If#= 1 Alt= 3 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none)
E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms
I: If#= 1 Alt= 4 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none)
E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms
I: If#= 1 Alt= 5 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none)
E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E: Ad=84(I) Atr=02(Bulk) MxPS= 32 Ivl=0ms
E: Ad=04(O) Atr=02(Bulk) MxPS= 32 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=01 Driver=(none)
/sys/kernel/debug/usb/devices after loading firmware:
T: Bus=01 Lev=02 Prnt=02 Port=04 Cnt=02 Dev#= 4 Spd=12 MxCh= 0
D: Ver= 2.00 Cls=ff(vend.) Sub=01 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=0a5c ProdID=21d3 Rev= 1.12
S: Manufacturer=Broadcom Corp
S: Product=BCM43142A0
S: SerialNumber=3859F9D6199A
C:* #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb
E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb
E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms
I: If#= 1 Alt= 1 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb
E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms
I: If#= 1 Alt= 2 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb
E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms
I: If#= 1 Alt= 3 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb
E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms
I: If#= 1 Alt= 4 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb
E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms
I: If#= 1 Alt= 5 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb
E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E: Ad=84(I) Atr=02(Bulk) MxPS= 32 Ivl=0ms
E: Ad=04(O) Atr=02(Bulk) MxPS= 32 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=01 Driver=(none)
Signed-off-by: Wen-chien Jesse Sung <jesse.sung at canonical.com>
---
drivers/bluetooth/btusb.c | 76 +++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 73 insertions(+), 3 deletions(-)
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 8e16f0a..09117b8 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -24,6 +24,7 @@
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/firmware.h>
+#include <linux/delay.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
@@ -49,6 +50,7 @@ static struct usb_driver btusb_driver;
#define BTUSB_WRONG_SCO_MTU 0x40
#define BTUSB_ATH3012 0x80
#define BTUSB_INTEL 0x100
+#define BTUSB_BCM_PATCHRAM 0x800
static struct usb_device_id btusb_table[] = {
/* Generic Bluetooth USB device */
@@ -104,13 +106,13 @@ static struct usb_device_id btusb_table[] = {
{ USB_DEVICE(0x0b05, 0x17b5) },
{ USB_DEVICE(0x04ca, 0x2003) },
{ USB_DEVICE(0x0489, 0xe042) },
- { USB_DEVICE(0x413c, 0x8197) },
+ { USB_DEVICE(0x413c, 0x8197), .driver_info = BTUSB_BCM_PATCHRAM },
/* Foxconn - Hon Hai */
- { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
+ { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), .driver_info = BTUSB_BCM_PATCHRAM },
/*Broadcom devices with vendor specific id */
- { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
+ { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), .driver_info = BTUSB_BCM_PATCHRAM },
{ } /* Terminating entry */
};
@@ -1324,6 +1326,71 @@ exit_mfg_deactivate:
return 0;
}
+static int btusb_setup_patchram_packet(struct hci_dev *hdev, u16 opcode, u32 plen, const void *param)
+{
+ struct sk_buff *skb;
+
+ skb = __hci_cmd_sync(hdev, opcode, plen, param, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb))
+ return PTR_ERR(skb);
+ kfree_skb(skb);
+ return 0;
+}
+
+#define PATCHRAM_NAME_LEN 20
+
+static int btusb_setup_patchram(struct hci_dev *hdev)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct usb_device *udev = data->udev;
+ size_t pos = 0;
+ int err = 0;
+ char filename[PATCHRAM_NAME_LEN];
+ const struct firmware *fw;
+ u8 val = 0x00;
+
+ snprintf(filename, PATCHRAM_NAME_LEN, "fw-%04x_%04x.hcd",
+ le16_to_cpu(udev->descriptor.idVendor),
+ le16_to_cpu(udev->descriptor.idProduct));
+ if (request_firmware(&fw, (const char *) filename, &udev->dev) < 0) {
+ BT_INFO("can't load firmware, may not work correctly");
+ return 0;
+ }
+
+ err = btusb_setup_patchram_packet(hdev, 0x0c03, 1, &val);
+ if (err)
+ goto out;
+
+ err = btusb_setup_patchram_packet(hdev, 0xfc2e, 1, &val);
+ if (err)
+ goto out;
+
+ msleep(1000);
+ while (pos < fw->size) {
+ size_t len;
+ len = fw->data[pos + 2] + 3;
+ if (pos + len > fw->size) {
+ err = -EINVAL;
+ goto out;
+ }
+ err = btusb_setup_patchram_packet(hdev, le16_to_cpu(*(u16*)(fw->data + pos)),
+ fw->data[pos + 2] , &fw->data[pos + 3]);
+ if (err)
+ goto out;
+ pos += len;
+ }
+
+ err = btusb_setup_patchram_packet(hdev, 0x0c03, 1, &val);
+out:
+ release_firmware(fw);
+ if (err) {
+ BT_INFO("fail to load firmware");
+ return err;
+ }
+ BT_INFO("firmware loaded");
+ return 0;
+}
+
static int btusb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
@@ -1432,6 +1499,9 @@ static int btusb_probe(struct usb_interface *intf,
if (id->driver_info & BTUSB_INTEL)
hdev->setup = btusb_setup_intel;
+ if (id->driver_info & BTUSB_BCM_PATCHRAM)
+ hdev->setup = btusb_setup_patchram;
+
/* Interface numbers are hardcoded in the specification */
data->isoc = usb_ifnum_to_if(data->udev, 1);
--
1.8.1.2
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