[linux-oem][PATCH] UBUNTU: SAUCE: Support fw upgrade for CAC Reader BCM58102
Timo Aaltonen
tjaalton at ubuntu.com
Tue Jan 23 12:08:27 UTC 2018
On 18.01.2018 14:41, Wen-chien Jesse Sung wrote:
> BugLink: https://launchpad.net/bugs/1744041
>
> Import usb-cv from Broadcom's release 4.8.005.2-1.0.0.
>
> Signed-off-by: Wen-chien Jesse Sung <jesse.sung at canonical.com>
> ---
> ubuntu/Makefile | 6 +
> ubuntu/usb-cv/Makefile | 1 +
> ubuntu/usb-cv/usb-cv.c | 1106 ++++++++++++++++++++++++++++++++++++++++++++++++
> ubuntu/usb-cv/usb-cv.h | 192 +++++++++
> 4 files changed, 1305 insertions(+)
> create mode 100644 ubuntu/usb-cv/Makefile
> create mode 100644 ubuntu/usb-cv/usb-cv.c
> create mode 100644 ubuntu/usb-cv/usb-cv.h
>
> diff --git a/ubuntu/Makefile b/ubuntu/Makefile
> index 934baef..d9a36cb 100644
> --- a/ubuntu/Makefile
> +++ b/ubuntu/Makefile
> @@ -37,6 +37,12 @@ endif
> ##
> ##
> ##
> +ifeq ($(ARCH),x86)
> +obj-y += usb-cv/
> +endif
> +##
> +##
> +##
> ##
> ##
> ##
> diff --git a/ubuntu/usb-cv/Makefile b/ubuntu/usb-cv/Makefile
> new file mode 100644
> index 0000000..40654ab
> --- /dev/null
> +++ b/ubuntu/usb-cv/Makefile
> @@ -0,0 +1 @@
> +obj-m += usb-cv.o
> diff --git a/ubuntu/usb-cv/usb-cv.c b/ubuntu/usb-cv/usb-cv.c
> new file mode 100644
> index 0000000..86020dd
> --- /dev/null
> +++ b/ubuntu/usb-cv/usb-cv.c
> @@ -0,0 +1,1106 @@
> +/******************************************************************************
> + *
> + * Copyright 2017
> + * Broadcom Limited
> + * 1 Yishun Avenue 7, Singapore 768923, Singapore
> + *
> + *****************************************************************************/
> +
> +#include <linux/string.h>
> +#include <linux/mm.h>
> +#include "usb-cv.h"
> +#include <linux/fs.h>
> +#include <linux/sched.h>
> +#include <linux/uaccess.h>
> +
> +
> +volatile int int_urb_status = -1;
> +volatile int tx_bulk_in_sig = 0;
> +volatile int rx_bulk_in_sig = 0;
> +volatile int ush_is_in_sbl = 0;
> +volatile int reply_received_ush_is_in_sbl = 0;
> +
> +int packet_for_sbi_in_sbl = 0;
> +
> +struct write_buffer {
> + unsigned int cmd_length; //Use int for both 32 and 64 bit kernel
> + unsigned char cmd_buffer[1];
> +};
> +
> +typedef unsigned int cv_transport_type;
> +typedef unsigned short cv_command_id;
> +
> +typedef struct td_cv_host_control_get_request {
> + cv_transport_type transportType; /* CV_TRANS_TYPE_HOST_CONTROL */
> + uint32_t transportLen; /* length of entire transport block in bytes */
> + cv_command_id commandID; /* CV_HOST_CONTROL_GET_REQUEST */
> +} /*__attribute__((__packed__))*/ cv_host_control_get_request;
> +
> +/* table of devices that work with this driver */
> +static struct usb_device_id cv_dev_table [] = {
> + { USB_DEVICE(USB_CV_VENDOR_ID, USB_CV_PID_0000) },
> + { USB_DEVICE(USB_CV_VENDOR_ID, USB_CV_PID_5800) },
> + { USB_DEVICE(USB_CV_VENDOR_ID, USB_CV_PID_5801) },
> + { USB_DEVICE(USB_CV_VENDOR_ID, USB_CV_PID_5802) },
> + { USB_DEVICE(USB_CV_VENDOR_ID, USB_CV_PID_5804) },
> + { USB_DEVICE(USB_CV_VENDOR_ID, USB_CV_PID_5805) },
> + { USB_DEVICE(USB_CV_VENDOR_ID, USB_CV_PID_5821) },
> + { USB_DEVICE(USB_CV_VENDOR_ID, USB_CV_PID_5822) },
> + { USB_DEVICE(USB_CV_VENDOR_ID, USB_CV_PID_5823) },
> + { USB_DEVICE(USB_CV_VENDOR_ID, USB_CV_PID_5824) },
> + { USB_DEVICE(USB_CV_VENDOR_ID, USB_CV_PID_5825) },
> + { USB_DEVICE(USB_CV_VENDOR_ID, USB_CV_PID_5826) },
> + { USB_DEVICE(USB_CV_VENDOR_ID, USB_CV_PID_5830) },
> + { USB_DEVICE(USB_CV_VENDOR_ID, USB_CV_PID_5831) },
> + { USB_DEVICE(USB_CV_VENDOR_ID, USB_CV_PID_5832) },
> + { USB_DEVICE(USB_CV_VENDOR_ID, USB_CV_PID_5833) },
> + { USB_DEVICE(USB_CV_VENDOR_ID, USB_CV_PID_5834) },
> + { } /* Terminating entry */
> +};
> +
> +MODULE_DEVICE_TABLE (usb, cv_dev_table);
> +
> +static DEFINE_MUTEX(cv_dev_usb_mutex);
> +
> +static struct usb_driver cv_dev_driver;
> +
> +
> +void* KMalloc(size_t size, int flags)
> +{
> + void *pMem;
> + pMem = kmalloc(size, flags);
> + DBG_PRINT(INFO_DBG, "kmalloc: 0x%x (0x%x) bytes at: %p\n", (int)size, flags, pMem);
> + return pMem;
> +}
> +
> +
> +void KFree(void* pMem)
> +{
> + DBG_PRINT(INFO_DBG, "kfree: %p\n", pMem);
> + kfree(pMem);
> +}
> +
> +
> +
> +int txCmdOk(struct usb_cv *dev)
> +{
> + unsigned long start;
> + unsigned long cur;
> + unsigned long deltaTime;
> + int txstatus;
> +
> + DBG_PRINT(INFO_DBG, "TX cmd in progress\n");
> + start = jiffies;
> + while (!tx_bulk_in_sig) {
> + txstatus = (dev->bulk_out_urb)->status;
> +
> + if(!packet_for_sbi_in_sbl) msleep(2);
> +
> + cur = jiffies;
> + deltaTime = cur - start;
> +
> + if (deltaTime > MAX_WAIT_TX_TIME*HZ) {
> + DBG_PRINT(ERR_DBG, "TX timeout, waited %d seconds\n", (unsigned int)(deltaTime/HZ));
> + return 0;
> + }
> + }
> +
> + // check if status error
> + txstatus = dev->tx_status;
> + if (txstatus) {
> + DBG_PRINT(ERR_DBG, "tx error 0x%x\n", txstatus);
> + return 0;
> + }
> +
> + DBG_PRINT(INFO_DBG, "TX cmd done, urb->status: 0x%x\n", txstatus);
> +
> + // tx ok
> + return 1;
> +}
> +
> +
> +void waitForResponse(struct usb_cv *dev)
> +{
> + unsigned long start;
> + unsigned long cur;
> + unsigned long deltaTime;
> +
> + DBG_PRINT(INFO_DBG, "Waiting for RX response in progress\n");
> + start = jiffies;
> + while (!rx_bulk_in_sig) {
> +
> + if(!packet_for_sbi_in_sbl) msleep(10);
> +
> + cur = jiffies;
> + deltaTime = cur - start;
> +
> + if (deltaTime > MAX_WAIT_RX_TIME*HZ) {
> + DBG_PRINT(ERR_DBG, "RX timeout, waited %d seconds\n", (unsigned int)(deltaTime/HZ));
> + break;
> + }
> + }
> +}
> +
> +
> +void displayDump(int outLen, unsigned char *buf)
> +{
> + char tmp[4] = "";
> + char tmpl[4] = "";
> + int i = 0, j = 0;
> + int k = 0;
> + char content[DISPLEN*3+1], display[DISPLEN+1];
> + char contentl[DISPLEN*3+1];//, displayl[DISPLEN+1];
> +
> + if((NULL==buf)||(0==outLen)) {
> + DBG_PRINT(ERR_DBG, "Wrong input to the functions check at %d, in %s\n", __LINE__-2, __FILE__);
> + }
> +
> + content[0] = display[0] = display[DISPLEN] = '\0';
> + contentl[0] = '\0';
> +
> + // check length
> + if (outLen>0x100) {
> + DBG_PRINT(INFO_DBG,"Buffer Length: 0x%x, only printing 0x100\n", outLen);
> + outLen=0x100;
> + }
> +
> + do{
> + sprintf(tmp, "%02x ", buf[i]);
> + sprintf(tmpl, "%02x ", buf[i]);
> + strcat(content, tmp);
> +
> + /* printk adds new line, don't print now */
> + /* DBG_PRINT(ERR_DBG,tmp); */
> + display[i%DISPLEN] = '.';
> +
> + if((buf[i]>31)&&(buf[i]<127))
> + display[i%DISPLEN] = buf[i];
> +
> + i++;
> + k++;
> +
> + if(k%8 == 0) {
> + /* Print this way due to new line added by printk */
> + DBG_PRINT(INFO_DBG,"%s\t\t%s",content,display);
> + /*
> + DBG_PRINT(INFO_DBG,"%s",display);
> + DBG_PRINT(INFO_DBG,"\n");
> + */
> + }
> +
> + if (0 == (i%DISPLEN)) {
> + display[DISPLEN] = '\0';
> + content[0] = display[0] = '\0';
> + continue;
> + }
> +
> + if (i == outLen) {
> + display[i%DISPLEN] = '\0';
> + for(j = (i%DISPLEN); j < DISPLEN; j++) {
> + /* Each byte takes 3 spaces */
> + strcat(contentl, " ");
> + }
> +
> + /* Print this way due to new line added by printk */
> + DBG_PRINT(INFO_DBG,"%s%s\t\t%s",content, contentl, display);
> + /*
> + DBG_PRINT(ERR_DBG,"\t%s",contentl);
> + DBG_PRINT(ERR_DBG,"\t%s\n",display);
> + */
> + }
> +
> + } while(i<outLen);
> +
> + DBG_PRINT(INFO_DBG,"\n");
> +}
> +
> +
> +static void cv_dev_delete(struct kref *kref)
> +{
> + struct usb_cv *dev = to_cv_dev(kref);
> +
> + /* free memory allocated for interrupt buffer */
> +
> + if(dev->udev != NULL)
> + usb_put_dev(dev->udev);
> +
> + if(dev != NULL)
> + KFree (dev);
> +}
> +
> +
> +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)
> +static void cv_dev_read_interrupt_callback (struct urb *urb, struct pt_regs *regs)
> +#else
> +static void cv_dev_read_interrupt_callback (struct urb *urb)
> +#endif
> +
> +{
> + struct usb_cv *dev;
> + dev = (struct usb_cv *)urb->context;
> + int_urb_status = urb->status;
> +
> + DBG_PRINT(INFO_DBG, "In cv_dev_read_interrupt_callback: %d, actual_length: 0x%x\n", urb->status, urb->actual_length);
> +
> + switch (urb->status) {
> + case 0: /* success */
> + break;
> + case -ECONNRESET: /* unlink */
> + case -ENOENT:
> + case -ESHUTDOWN:
> + //case -EPROTO: /* This happens before disconnecting (USH rebooting), still submitting here */
> + return;
> + /* -EPIPE: should clear the halt */
> + default: /* error */
> + DBG_PRINT(ERR_DBG, "resubmitting the urb in interrupt_callback :%d\n",
> + urb->status);
> + }
> +
> + int_urb_status = usb_submit_urb (urb, GFP_ATOMIC);
> + if (int_urb_status)
> + DBG_PRINT(ERR_DBG,"can't resubmit urb in read interrupt callback\n");
> +
> + return;
> +}
> +
> +
> +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)
> +static void cv_dev_read_bulk_callback (struct urb *urb, struct pt_regs *regs)
> +#else
> +static void cv_dev_read_bulk_callback (struct urb *urb)
> +#endif
> +{
> + struct usb_cv *dev = urb->context;
> + int status, len;
> + int submit_urb = 0;
> +
> + DBG_PRINT(INFO_DBG, "CV, In cv_dev_read_bulk_callback()\n");
> +
> + if(ush_is_in_sbl && reply_received_ush_is_in_sbl)
> + {
> + DBG_PRINT(INFO_DBG, "Reply in SBL has been received, don't process in cv_dev_read_bulk_callback\n");
> + return;
> + }
> +
> + status = urb->status;
> +
> + if(status == -EPROTO)
> + {
> + /* This happens before disconnecting (USH rebooting), don't destroy the data received previously */
> + DBG_PRINT(INFO_DBG, "EPROTO, don't process in cv_dev_read_bulk_callback\n");
> + return;
> + }
> +
> + dev->actual_length = urb->actual_length;
> + dev->rx_status = urb->status;
> +
> + DBG_PRINT(INFO_DBG, "In cv_dev_read_bulk_callback: %d, actual_length: 0x%x\n", status, urb->actual_length);
> + len = urb->actual_length;
> +
> + switch (status) {
> + case 0: /* success */
> + break;
> + case -ECONNRESET: /* unlink */
> + case -ENOENT:
> + case -ESHUTDOWN:
> + memset(dev->bulk_in_buffer, '\0', IN_BUFFER_SIZE);
> + rx_bulk_in_sig = 1;
> + return;
> + /* -EPIPE: should clear the halt */
> + default: /* error */
> + memset(dev->bulk_in_buffer, '\0', IN_BUFFER_SIZE);
> + DBG_PRINT(ERR_DBG, "resubmitting the urb in read bulk callback :%d\n", status);
> + }
> +
> + if(ush_is_in_sbl)
> + {
> + // Don't submit if reply has been received when in SBL mode
> + if(!reply_received_ush_is_in_sbl)
> + {
> + submit_urb = 1;
> + reply_received_ush_is_in_sbl = 1;
> + }
> + }
> + else
> + {
> + submit_urb = 1;
> + }
> +
> + if(submit_urb)
> + {
> + status = usb_submit_urb(urb, GFP_ATOMIC);
> + if (status)
> + DBG_PRINT(ERR_DBG,"can't resubmit read urb \n");
> + }
> +
> + rx_bulk_in_sig = 1;
> +}
> +
> +
> +static int cv_dev_open(struct inode *inode, struct file *file)
> +{
> + struct usb_cv *dev;
> + struct usb_interface *interface;
> + int subminor;
> + int retval = 0;
> + int_urb_status = -1;
> +
> + DBG_PRINT(INFO_DBG,"CV, In cv_dev_open()\n");
> +
> + mutex_lock(&cv_dev_usb_mutex);
> +
> + subminor = iminor(inode);
> +
> + interface = usb_find_interface(&cv_dev_driver, subminor);
> +
> + if (!interface) {
> + DBG_PRINT(ERR_DBG,"%s - error, can't find device for minor %d\n", __FUNCTION__, subminor);
> + retval = -ENODEV;
> + goto exit;
> + }
> +
> + dev = usb_get_intfdata(interface);
> +
> + if (!dev) {
> + retval = -ENODEV;
> + goto exit;
> + }
> +
> + spin_lock(&dev->cv_lock);
> +
> + /* increment our usage count for the device */
> + kref_get(&dev->kref);
> +
> + spin_unlock(&dev->cv_lock);
> +
> + /* save our object in the file's private structure */
> + file->private_data = dev;
> +
> +exit:
> + mutex_unlock(&cv_dev_usb_mutex);
> + return retval;
> +}
> +
> +
> +static int cv_dev_release(struct inode *inode, struct file *file)
> +{
> + struct usb_cv *dev;
> +
> + DBG_PRINT(INFO_DBG, "CV, In cv_dev_release()\n");
> +
> + dev = (struct usb_cv *)file->private_data;
> +
> + if (dev == NULL) {
> + return -ENODEV;
> + }
> +
> + spin_lock(&dev->cv_lock);
> +
> + /* decrement the count on our device */
> + kref_put(&dev->kref, cv_dev_delete);
> +
> + spin_unlock(&dev->cv_lock);
> +
> + return 0;
> +}
> +
> +
> +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)
> +static void cv_dev_write_bulk_callback(struct urb *urb, struct pt_regs *regs)
> +#else
> +static void cv_dev_write_bulk_callback(struct urb *urb)
> +#endif
> +{
> + struct usb_cv *dev = urb->context;
> + int status;
> +
> + DBG_PRINT(INFO_DBG, "CV, In cv_dev_write_bulk_callback()\n");
> +
> + int_urb_status = -1;
> +
> + status = urb->status;
> +
> + DBG_PRINT(INFO_DBG, "In cv_dev_write_bulk_callback, status: %d, actual_length: %d\n", status, urb->actual_length);
> +
> + /* sync/async unlink faults aren't errors */
> + if (status) {
> + if (status == -ENOENT ||
> + status == -ECONNRESET ||
> + status == -ESHUTDOWN) {
> + goto exit;
> + } else {
> + DBG_PRINT(ERR_DBG, "nonzero status received: %d\n", status);
> + }
> + }
> +
> +exit:
> +
> + dev->tx_status = status;
> +
> + if(dev->bulk_out_buffer != NULL) {
> + KFree(dev->bulk_out_buffer);
> + dev->bulk_out_buffer=NULL;
> + }
> +
> + if(dev->bulk_out_urb != NULL)
> + usb_free_urb(dev->bulk_out_urb);
> +
> + // signal that the tx has completed
> + tx_bulk_in_sig = 1;
> +}
> +
> +
> +static void cv_dev_submit_cmd_tasklet(unsigned long data)
> +{
> + struct usb_cv *dev;
> + int retval;
> +
> + DBG_PRINT(INFO_DBG, "CV, In cv_dev_submit_cmd_tasklet()\n");
> +
> + dev = (struct usb_cv *)data;
> +
> + spin_lock(&dev->cv_lock);
> +
> + /* create a urb, and a buffer for it, and copy the data to the urb */
> + dev->bulk_out_urb = usb_alloc_urb(0, GFP_ATOMIC);
> +
> + if (!dev->bulk_out_urb) {
> + retval = -ENOMEM;
> + spin_unlock(&dev->cv_lock);
> + return;
> + }
> +
> + /* initialize the urb properly */
> + usb_fill_bulk_urb(dev->bulk_out_urb,
> + dev->udev,
> + usb_sndbulkpipe(dev->udev, dev->bulk_out_endpointAddr),
> + dev->bulk_out_buffer,
> + dev->write_count,
> + cv_dev_write_bulk_callback,
> + dev);
> +
> + /* send the data out the bulk port */
> + retval = usb_submit_urb(dev->bulk_out_urb, GFP_ATOMIC);
> + if (retval) {
> + DBG_PRINT(ERR_DBG,"%s - failed submitting write urb, error %d\n", __FUNCTION__, retval);
> + }
> +
> + spin_unlock(&dev->cv_lock);
> +}
> +
> +
> +static ssize_t cv_dev_submit_cmd(struct file *file, struct usb_cv *dev, const char __user *user_buffer)
> +{
> + int retval=0;
> + int count;
> + void __user *argp = (void __user *)user_buffer;
> + struct write_buffer *wbuffer = NULL;
> + struct write_buffer *rbuffer = (struct write_buffer *)argp;
> + int curr_buf_size;
> + unsigned char *curr_buf_ptr;
> + bool last_packet_for_sbi_in_sbl = 0;
> +
> + DBG_PRINT(INFO_DBG, "CV, In cv_dev_submit_cmd()\n");
> +
> + spin_lock(&dev->cv_lock);
> +
> + // Get length at beginning of the user_buffer
> + if (copy_from_user(&count, argp, sizeof(int))) {
> + DBG_PRINT(ERR_DBG,"Copy length failed in %s\n",__FUNCTION__);
> + retval = -EFAULT;
> + goto error;
> + }
> +
> + //FW Upgrade packets for SBI in SBL
> + if(count & FW_UPGRADE_IN_SBL_MASK)
> + {
> + //Clear the flag
> + count &= ~FW_UPGRADE_IN_SBL_MASK;
> + packet_for_sbi_in_sbl = 1;
> + }
> + else
> + {
> + packet_for_sbi_in_sbl = 0;
> + }
> +
> + if(count & FW_UPGRADE_IN_SBL_LAST_PKT_MASK)
> + {
> + DBG_PRINT(INFO_DBG,"Last pkt received in SBL\n");
> +
> + //Clear the flag
> + count &= ~FW_UPGRADE_IN_SBL_LAST_PKT_MASK;
> + last_packet_for_sbi_in_sbl = 1;
> + }
> + else
> + {
> + last_packet_for_sbi_in_sbl = 0;
> + }
> +
> + DBG_PRINT(INFO_DBG,"Received write request of %d bytes\n",(int)count);
> +
> + if (count > OUT_BUFFER_SIZE_LIMIT)
> + {
> + DBG_PRINT(ERR_DBG,"Write request length %d too long in %s\n", count, __FUNCTION__);
> + retval = -EFAULT;
> + goto error;
> + }
> +
> + //wbuffer = (struct write_buffer *)KMalloc(sizeof(struct write_buffer) + OUT_BUFFER_SIZE - sizeof(unsigned char),GFP_ATOMIC);
> + wbuffer = (struct write_buffer *)KMalloc(sizeof(struct write_buffer) + count - sizeof(unsigned char),GFP_ATOMIC);
> + if(wbuffer == NULL) {
> + DBG_PRINT(ERR_DBG,"Failed to KMalloc memory in %s\n",__FUNCTION__);
> + retval = -ENOMEM;
> + goto error;
> + }
> +
> + if (copy_from_user(wbuffer, argp, sizeof(struct write_buffer) + count - sizeof(unsigned char))) {
> + DBG_PRINT(ERR_DBG,"Copy failed in %s\n",__FUNCTION__);
> + retval = -EFAULT;
> + KFree(wbuffer);
> + goto error;
> + }
> +
> + DBG_PRINT(INFO_DBG,"In %s\n",__FUNCTION__);
> +
> +
> + if(packet_for_sbi_in_sbl)
> + {
> + wbuffer->cmd_length &= ~FW_UPGRADE_IN_SBL_MASK;
> + }
> +
> + if(last_packet_for_sbi_in_sbl)
> + {
> + wbuffer->cmd_length &= ~FW_UPGRADE_IN_SBL_LAST_PKT_MASK;
> + }
> +
> + curr_buf_size = wbuffer->cmd_length;
> + curr_buf_ptr = wbuffer->cmd_buffer;
> +
> + /* Increase alloc size to avoid errors when size is too small here */
> + dev->bulk_out_buffer = (char *)KMalloc(curr_buf_size < 512 ? 512 : curr_buf_size,GFP_ATOMIC);
> + dev->write_count = curr_buf_size;
> +
> + if (!dev->bulk_out_buffer) {
> + DBG_PRINT(ERR_DBG,"Failed to KMalloc memory in %s\n",__FUNCTION__);
> + retval = -ENOMEM;
> + KFree(wbuffer);
> + goto error;
> + }
> +
> + /* verify that we actually have some data to write */
> + if (curr_buf_size == 0) {
> + DBG_PRINT(ERR_DBG,"The Length of data to be written is zero\n");
> + KFree(wbuffer);
> + goto error;
> + }
> +
> + DBG_PRINT(INFO_DBG,"Current write request of %d bytes\n", curr_buf_size);
> +
> + memcpy(dev->bulk_out_buffer, curr_buf_ptr, curr_buf_size);
> +
> + DBG_PRINT(INFO_DBG, "Conforming write of \n");
> + displayDump(curr_buf_size, dev->bulk_out_buffer);
> +
> + if(file->f_flags & O_NONBLOCK) {
> +
> + spin_unlock(&dev->cv_lock);
> + tasklet_init(&dev->cv_dev_tl, cv_dev_submit_cmd_tasklet, (unsigned long)dev);
> + tasklet_schedule(&dev->cv_dev_tl);
> + tasklet_kill(&dev->cv_dev_tl);
> +
> + msleep(200);
> +
> + retval = dev->actual_length;
> + if (copy_to_user((void __user *)rbuffer->cmd_buffer, dev->bulk_in_buffer,dev->actual_length)) {
> + DBG_PRINT(ERR_DBG,"Copy to user failed in %s\n", __FUNCTION__);
> + retval = -EFAULT;
> + }
> +
> + DBG_PRINT(INFO_DBG, "Date read from device \n");
> + displayDump(dev->actual_length, dev->bulk_in_buffer);
> + goto error;
> +
> + } else {
> +
> + /* create a urb, and a buffer for it, and copy the data to the urb */
> + dev->bulk_out_urb = usb_alloc_urb(0, GFP_ATOMIC);
> + if (!dev->bulk_out_urb) {
> + DBG_PRINT(ERR_DBG,"Failed to allocate urb in %s\n", __FUNCTION__);
> + retval = -ENOMEM;
> + goto error;
> + }
> +
> + /* initialize the urb properly */
> + usb_fill_bulk_urb(dev->bulk_out_urb,
> + dev->udev,
> + usb_sndbulkpipe(dev->udev, dev->bulk_out_endpointAddr),
> + dev->bulk_out_buffer,
> + dev->write_count,
> + cv_dev_write_bulk_callback,
> + dev);
> +
> + // initialize bulk in parameters
> + memset(dev->bulk_in_buffer, '\0', IN_BUFFER_SIZE);
> + dev->actual_length = 0;
> + tx_bulk_in_sig = 0; // reset tx signal
> + rx_bulk_in_sig = 0; // reset rx signal
> +
> + /* send the data out the bulk port */
> + retval = usb_submit_urb(dev->bulk_out_urb, GFP_ATOMIC);
> + if (retval) {
> + DBG_PRINT(ERR_DBG,"%s - failed submitting write urb, error %d\n", __FUNCTION__, retval);
> + goto error;
> + }
> +
> + DBG_PRINT(INFO_DBG, "URB Submitted OK, waiting for tx complete\n");
> + if (!txCmdOk(dev)) {
> + DBG_PRINT(ERR_DBG,"Tx failed\n");
> + retval = -EFAULT;
> + goto error;
> + }
> +
> + if(packet_for_sbi_in_sbl && !last_packet_for_sbi_in_sbl)
> + {
> + DBG_PRINT(INFO_DBG,"SBI load in SBL, no response from USH expected\n");
> + retval = 0;
> + goto error;
> + }
> + }
> +
> + if(wbuffer != NULL)
> + KFree(wbuffer);
> +
> + if(!(file->f_flags & O_NONBLOCK))
> + {
> + DBG_PRINT(INFO_DBG, "Transmitted command, waiting for rx\n");
> + waitForResponse(dev);
> + if (dev->rx_status != 0) {
> + DBG_PRINT(ERR_DBG,"rx error: 0x%x\n", dev->rx_status);
> + retval = -EFAULT;
> + goto error;
> + }
> +
> + DBG_PRINT(INFO_DBG, "Completed the Bulk read request with %d bytes\n", dev->actual_length);
> + if (dev->actual_length == 0) {
> + DBG_PRINT(ERR_DBG,"failed to rx data\n");
> + retval = -EFAULT;
> + goto error;
> + }
> +
> + if (copy_to_user((void __user *)rbuffer->cmd_buffer, dev->bulk_in_buffer, dev->actual_length)) {
> + DBG_PRINT(ERR_DBG,"Copy to user failed in %s\n", __FUNCTION__);
> + retval = -EFAULT;
> + goto error;
> + }
> +
> + DBG_PRINT(INFO_DBG, "Data read from device \n");
> + displayDump(dev->actual_length, dev->bulk_in_buffer);
> +
> + retval = dev->actual_length;
> + }
> +
> +error:
> +
> + if (dev->bulk_out_buffer != NULL) {
> + KFree(dev->bulk_out_buffer);
> + dev->bulk_out_buffer=NULL;
> + }
> +
> + spin_unlock(&dev->cv_lock);
> + return retval;
> +}
> +
> +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36)
> +static int cv_dev_ioctl(struct inode *inode, struct file *file, unsigned int code, unsigned long value)
> +#else
> +/* Changed from static int to static long to get rid of compilation errors on Ubuntu 16.04 */
> +static long cv_dev_ioctl(struct file *file, unsigned int code, unsigned long value)
> +#endif
> +{
> + struct usb_cv *dev;
> + struct usb_interface *iface;
> + struct usb_device *udev;
> + int retval = 0;
> +
> + /*
> + * extract the type and number bitfields, and don't decode
> + * wrong cmds: return ENOTTY before verify_area()
> + */
> +
> + DBG_PRINT(INFO_DBG,"CV, In cv_dev_ioctl()\n");
> +
> + if(_IOC_TYPE(code) != CV_IOC_MAGIC) return -ENOTTY;
> + if(_IOC_NR(code) > CV_IOC_MAXNR) return -ENOTTY;
> +
> + dev = (struct usb_cv *)file->private_data;
> + iface = dev->interface;
> + udev = interface_to_usbdev (iface);
> +
> + switch(code) {
> +
> + case CV_SUBMIT_CMD:
> + DBG_PRINT(INFO_DBG,"Received CV_SUBMIT_COMMAND\n");
> + if(dev->bulk_in_buffer)
> + {
> + memset(dev->bulk_in_buffer, '\0', IN_BUFFER_SIZE);
> + retval = cv_dev_submit_cmd(file, dev, (void __user *)value);
> + }
> + else
> + {
> + DBG_PRINT(ERR_DBG,"dev->bulk_in_buffer is NULL\n");
> + retval = -EFAULT;
> + }
> + break;
> +
> + case CV_GET_COMMAND_STATUS:
> + DBG_PRINT(INFO_DBG,"Received CV_GET_COMMAND_STATUS\n");
> + if(dev->bulk_in_buffer)
> + {
> + memset(dev->bulk_in_buffer, '\0', IN_BUFFER_SIZE);
> + retval = cv_dev_submit_cmd(file, dev, (void __user *)value);
> + }
> + else
> + {
> + DBG_PRINT(ERR_DBG,"dev->bulk_in_buffer is NULL\n");
> + retval = -EFAULT;
> + }
> + break;
> +
> + default :
> + DBG_PRINT(ERR_DBG,"Unknown IOCTL request received\n");
> + break;
> + }
> +
> + return retval;
> +}
> +
> +
> +static struct file_operations cv_dev_fops = {
> + .owner = THIS_MODULE,
> + .open = cv_dev_open,
> + //.write = cv_dev_write,
> + .release = cv_dev_release,
> +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36)
> + .ioctl = cv_dev_ioctl,
> +#else
> + /* compat_ioctl is for 32 bit user space applications. */
> + /* .unlocked_ioctl = cv_dev_ioctl, */
> + .compat_ioctl = cv_dev_ioctl,
> +#endif
> +};
> +
> +
> +/*
> + * usb class driver info in order to get a minor number from the usb core,
> + * and to have the device registered with devfs and the driver core
> + */
> +
> +static struct usb_class_driver cv_dev_class = {
> + .name = DEVICE_NAME"%d",
> + .fops = &cv_dev_fops,
> + //.mode = S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH,
> + .minor_base = USB_CV_MINOR_BASE,
> +};
> +
> +
> +static int cv_dev_probe(struct usb_interface *interface, const struct usb_device_id *id)
> +{
> + struct usb_cv *dev = NULL;
> + struct usb_host_interface *iface_desc;
> + struct usb_endpoint_descriptor *endpoint;
> + struct usb_device_descriptor descriptor;
> + int i;
> + int retval = -ENOMEM;
> + static int probe_on = 0;
> + int pipe;
> +
> + probe_on++;
> +
> + DBG_PRINT(INFO_DBG, "Interface Minor :%d\n",interface->minor);
> + DBG_PRINT(INFO_DBG, "BRCM CV_USB Device Driver First Cut \n");
> + /* Comment out to get built with Ubuntu 16.04 */
> + /* DBG_PRINT(INFO_DBG, "Built is %s %s\n",__DATE__,__TIME__); */
> +
> + /* allocate memory for our device state and initialize it */
> + dev = (struct usb_cv *)KMalloc(sizeof(struct usb_cv), GFP_ATOMIC);
> + if (dev == NULL) {
> + goto error;
> + }
> +
> + memset(dev, 0x00, sizeof (*dev));
> + kref_init(&dev->kref);
> +
> + dev->udev = usb_get_dev(interface_to_usbdev(interface));
> + dev->interface = interface;
> + descriptor = dev->udev->descriptor;
> +
> + /* Validate the VENDOR ID & PRODUCT ID */
> + if ( (descriptor.idVendor != USB_CV_VENDOR_ID) ||
> + ((descriptor.idProduct != USB_CV_PID_0000) &&
> + (descriptor.idProduct != USB_CV_PID_5800) &&
> + (descriptor.idProduct != USB_CV_PID_5801) &&
> + (descriptor.idProduct != USB_CV_PID_5802) &&
> + (descriptor.idProduct != USB_CV_PID_5804) &&
> + (descriptor.idProduct != USB_CV_PID_5805) &&
> + (descriptor.idProduct != USB_CV_PID_5821) &&
> + (descriptor.idProduct != USB_CV_PID_5822) &&
> + (descriptor.idProduct != USB_CV_PID_5823) &&
> + (descriptor.idProduct != USB_CV_PID_5824) &&
> + (descriptor.idProduct != USB_CV_PID_5825) &&
> + (descriptor.idProduct != USB_CV_PID_5826) &&
> + (descriptor.idProduct != USB_CV_PID_5830) &&
> + (descriptor.idProduct != USB_CV_PID_5831) &&
> + (descriptor.idProduct != USB_CV_PID_5832) &&
> + (descriptor.idProduct != USB_CV_PID_5833) &&
> + (descriptor.idProduct != USB_CV_PID_5834)) )
> + {
> + /* This is not an error case, so returning ZERO */
> + /* We need to free the memory allocated as this device is
> + no supported by this driver */
> + KFree(dev);
> + DBG_PRINT(INFO_DBG, "Probe on CV Driver for VENDOR:%X\tPRODUCT:%X\n",
> + descriptor.idVendor,descriptor.idProduct);
> + return 0;
> + }
> +
> + if(descriptor.idProduct == USB_CV_PID_5830)
> + {
> + ush_is_in_sbl = 1;
> + reply_received_ush_is_in_sbl = 0;
> + }
> + else
> + {
> + ush_is_in_sbl = 0;
> + }
> +
> + /* set up the endpoint information */
> + /* use only the first bulk-in and bulk-out endpoints */
> + iface_desc = interface->cur_altsetting;
> +
> + DBG_PRINT(ERR_DBG, " bLength = 0x%02x \n bDescriptorType = 0x%02x \n bcdUSB = 0x%02x \n bDeviceClass = 0x%02x \n bDeviceProtocol = 0x%02x \n bMaxPacketSize = 0x%02x \n idVendor = 0x%02x \n idProduct = 0x%02x \n bcdDevice = 0x%02x \n iManufacturer = 0x%02x \n iProduct = 0x%02x \n iSerialNumber = 0x%02x \n bNumConfigurations = 0x%02x \n",
> + descriptor.bLength, descriptor.bDescriptorType, descriptor.bcdUSB, descriptor.bDeviceClass,
> + descriptor.bDeviceProtocol, descriptor.bMaxPacketSize0, descriptor.idVendor, descriptor.idProduct,
> + descriptor.bcdDevice, descriptor.iManufacturer, descriptor.iProduct, descriptor.iSerialNumber,
> + descriptor.bNumConfigurations);
> +
> + if( (descriptor.bDeviceClass) || (descriptor.bDeviceSubClass) || (descriptor.bDeviceProtocol)) {
> + DBG_PRINT(ERR_DBG, "Non Zero values of Class/SubClass/Protocol. Not a Composite device \n");
> + }
> +
> + DBG_PRINT(INFO_DBG, " bNumEndpoints = %d\n", iface_desc->desc.bNumEndpoints);
> +
> + for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
> + endpoint = &iface_desc->endpoint[i].desc;
> +
> + if (!dev->bulk_in_endpointAddr &&
> + (endpoint->bEndpointAddress & USB_DIR_IN) &&
> + ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK))
> + {
> + /* we found a bulk in endpoint */
> + DBG_PRINT(INFO_DBG, " found a bulk in endpoint %d\n", i);
> + dev->bulk_in_size = endpoint->wMaxPacketSize;
> + dev->bulk_in_endpointAddr = endpoint->bEndpointAddress;
> + }
> +
> + /* Changed USB_DIR_IN to USB_DIR_OUT */
> + if (!dev->bulk_out_endpointAddr &&
> + !(endpoint->bEndpointAddress & USB_DIR_OUT) &&
> + ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK))
> + {
> + /* we found a bulk out endpoint */
> + DBG_PRINT(INFO_DBG, " found a bulk out endpoint %d\n", i);
> + dev->bulk_out_endpointAddr = endpoint->bEndpointAddress;
> + dev->bulk_out_size = endpoint->wMaxPacketSize;
> + }
> +
> + if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) &&
> + ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT))
> + {
> + DBG_PRINT(INFO_DBG, " found a interrupt endpoint %d\n", i);
> + dev->interrupt_in_endpoint = endpoint;
> + dev->interrupt_in_size = endpoint->wMaxPacketSize;
> + }
> + }
> +
> + if (probe_on%2 == 1) {
> +
> + if ( !(dev->bulk_in_endpointAddr && dev->bulk_out_endpointAddr)) {
> + DBG_PRINT(ERR_DBG,"Could not find both bulk-in and bulk-out endpoints\n");
> + goto error;
> + }
> +
> + if( !dev->interrupt_in_endpoint ) {
> + DBG_PRINT(ERR_DBG,"Could not find interrupt_in_endpoint \n");
> + goto error;
> + }
> +
> + dev->interrupt_in_urb = usb_alloc_urb(0, GFP_ATOMIC);
> +
> + if (!dev->interrupt_in_urb) {
> + retval = -ENOMEM;
> + goto error;
> + }
> +
> + dev->interrupt_in_buffer = (unsigned char *)KMalloc(dev->interrupt_in_size, GFP_ATOMIC);
> + if (!dev->interrupt_in_buffer) {
> + retval = -ENOMEM;
> + usb_free_urb(dev->interrupt_in_urb);
> + goto error;
> + }
> +
> + memset(dev->interrupt_in_buffer, '\0',8);
> +
> + pipe = usb_rcvintpipe(dev->udev, dev->interrupt_in_endpoint->bEndpointAddress);
> +
> + usb_fill_int_urb(dev->interrupt_in_urb, dev->udev,pipe,
> + dev->interrupt_in_buffer, 8,
> + cv_dev_read_interrupt_callback, dev,
> + dev->interrupt_in_endpoint->bInterval);
> +
> + retval = usb_submit_urb(dev->interrupt_in_urb, GFP_ATOMIC);
> + if (retval) {
> + retval = -ENOMEM;
> + DBG_PRINT(ERR_DBG,"%s - failed submitting interrupt urb, error %d\n", __FUNCTION__, retval);
> + goto error;
> + }
> +
> + dev->bulk_in_urb = usb_alloc_urb(0, GFP_ATOMIC);
> +
> + if (!dev->bulk_in_urb) {
> + retval = -ENOMEM;
> + DBG_PRINT(ERR_DBG,"%s - failed to alloc_urb %d\n", __FUNCTION__, retval);
> + goto error;
> + }
> +
> + dev->bulk_in_buffer = (unsigned char *)KMalloc(IN_BUFFER_SIZE, GFP_ATOMIC);
> +
> + if(!dev->bulk_in_buffer) {
> + retval = -ENOMEM;
> + DBG_PRINT(ERR_DBG,"%s - failed to allocate memory %d\n", __FUNCTION__, retval);
> + usb_free_urb(dev->bulk_in_urb);
> + goto error;
> + }
> +
> + memset(dev->bulk_in_buffer, '\0', IN_BUFFER_SIZE);
> +
> + usb_fill_bulk_urb(dev->bulk_in_urb,
> + dev->udev,
> + usb_rcvbulkpipe(dev->udev, dev->bulk_in_endpointAddr),
> + dev->bulk_in_buffer,
> + IN_BUFFER_SIZE,
> + cv_dev_read_bulk_callback,
> + dev);
> +
> + retval = usb_submit_urb(dev->bulk_in_urb, GFP_ATOMIC);
> + if (retval) {
> + DBG_PRINT(ERR_DBG,"%s - failed submitting bulk urb, error %d\n", __FUNCTION__, retval);
> + goto error;
> + }
> +
> + spin_lock_init(&dev->cv_lock);
> +
> + }
> +
> + /* save our data pointer in this interface device */
> + usb_set_intfdata(interface, dev);
> +
> + /* we can register the device now, as it is ready */
> + retval = usb_register_dev(interface, &cv_dev_class);
> +
> + if (retval) {
> + /* something prevented us from registering this driver */
> + DBG_PRINT(ERR_DBG,"Not able to get a minor for this device.\n");
> + usb_set_intfdata(interface, NULL);
> + goto error;
> + }
> + /* let the user know what node this device is now attached to */
> + DBG_PRINT(ERR_DBG,"USB Credential Vault device now attached to USBCv-%d\n", interface->minor);
> + return 0;
> +
> +error:
> + if (dev)
> + kref_put(&dev->kref, cv_dev_delete);
> + return retval;
> +}
> +
> +
> +static void cv_dev_disconnect(struct usb_interface *interface)
> +{
> + struct usb_cv *dev;
> + int minor = interface->minor;
> +
> + if(interface != NULL) {
> +
> + /* prevent cv_dev_open() from racing cv_dev_disconnect() */
> + mutex_lock(&cv_dev_usb_mutex);
> +
> + dev = usb_get_intfdata(interface);
> +
> + if(dev!=NULL) {
> +
> + if(dev->interrupt_in_urb != NULL)
> + usb_kill_urb(dev->interrupt_in_urb);
> +
> + if(dev->interrupt_in_buffer != NULL)
> + KFree(dev->interrupt_in_buffer);
> +
> + if(dev->interrupt_in_urb != NULL)
> + usb_free_urb(dev->interrupt_in_urb);
> +
> + if(dev->bulk_in_urb != NULL)
> + usb_kill_urb(dev->bulk_in_urb);
> +
> + if(dev->bulk_in_buffer != NULL)
> + KFree(dev->bulk_in_buffer);
> +
> + if(dev->bulk_in_urb != NULL)
> + usb_free_urb(dev->bulk_in_urb);
> +
> + }
> +
> + usb_set_intfdata(interface, NULL);
> + /* give back our minor */
> + usb_deregister_dev(interface, &cv_dev_class);
> + mutex_unlock(&cv_dev_usb_mutex);
> +
> + /* decrement our usage count */
> + kref_put(&dev->kref, cv_dev_delete);
> + DBG_PRINT(ERR_DBG,"USB Credential Vault #%d now disconnected\n", minor);
> + }
> +
> +}
> +
> +
> +static struct usb_driver cv_dev_driver = {
> + .name = "Credential Vault",
> + .id_table = cv_dev_table,
> + .probe = cv_dev_probe,
> + .disconnect = cv_dev_disconnect,
> +};
> +
> +
> +static int __init usb_cv_dev_init(void)
> +{
> + int result;
> +
> + /* register this driver with the USB subsystem */
> + result = usb_register(&cv_dev_driver);
> + if (result)
> + DBG_PRINT(ERR_DBG,"usb_register failed. Error number %d\n", result);
> +
> + return result;
> +}
> +
> +
> +static void __exit usb_cv_dev_exit(void)
> +{
> + /* deregister this driver with the USB subsystem */
> + usb_deregister(&cv_dev_driver);
> +}
> +
> +module_init (usb_cv_dev_init);
> +module_exit (usb_cv_dev_exit);
> +
> +module_param(interval, int, S_IRUGO | S_IWUSR);
> +MODULE_PARM_DESC(interval, "Overrides interrupt interval");
> +MODULE_LICENSE("GPL");
> diff --git a/ubuntu/usb-cv/usb-cv.h b/ubuntu/usb-cv/usb-cv.h
> new file mode 100644
> index 0000000..65b2a16
> --- /dev/null
> +++ b/ubuntu/usb-cv/usb-cv.h
> @@ -0,0 +1,192 @@
> +/******************************************************************************
> + *
> + * Copyright 2017
> + * Broadcom Limited
> + * 1 Yishun Avenue 7, Singapore 768923, Singapore
> + *
> + *****************************************************************************/
> +#ifndef _USB_CV_H_
> +#define _USB_CV_H_
> +
> +#ifdef __KERNEL__
> +#include <linux/kernel.h>
> +#include <linux/errno.h>
> +#include <linux/init.h>
> +#include <linux/slab.h>
> +#include <linux/module.h>
> +#include <linux/kref.h>
> +#include <linux/usb.h>
> +#include <asm/uaccess.h>
> +#include <linux/version.h>
> +#include <linux/fs.h>
> +
> +
> +/* Define these values to match your devices */
> +#define USB_CV_VENDOR_ID 0x0a5c
> +
> +#define USB_CV_PID_0000 0x0000
> +
> +#define USB_CV_PID_5800 0x5800
> +#define USB_CV_PID_5801 0x5801
> +#define USB_CV_PID_5802 0x5802
> +#define USB_CV_PID_5804 0x5804
> +#define USB_CV_PID_5805 0x5805
> +#define USB_CV_PID_5821 0x5821
> +#define USB_CV_PID_5822 0x5822
> +#define USB_CV_PID_5823 0x5823
> +#define USB_CV_PID_5824 0x5824
> +#define USB_CV_PID_5825 0x5825
> +#define USB_CV_PID_5826 0x5826
> +#define USB_CV_PID_5830 0x5830
> +#define USB_CV_PID_5831 0x5831
> +#define USB_CV_PID_5832 0x5832
> +#define USB_CV_PID_5833 0x5833
> +#define USB_CV_PID_5834 0x5834
> +#endif
> +
> +#define CMD_BUF_SIZE 16*sizeof(unsigned char)
> +
> +#define CV_IOC_MAGIC 'k'
> +
> +#define CV_GET_LAST_COMMAND_STATUS _IOR(CV_IOC_MAGIC,1,int)
> +
> +#define CV_GET_LATEST_COMMAND_STATUS _IOR(CV_IOC_MAGIC,2,int)
> +
> +#define CV_GET_COMMAND_STATUS _IOR(CV_IOC_MAGIC,3,int)
> +
> +#define CV_GET_CONFIG_DESCRIPTOR _IOR(CV_IOC_MAGIC,4,int)
> +
> +#define CV_SUBMIT_CMD _IOW(CV_IOC_MAGIC,5,int)
> +
> +#define CV_BURN_FW _IOWR(CV_IOC_MAGIC,6,int)
> +
> +#define CV_HOST_CTL _IOWR(CV_IOC_MAGIC,7,int)
> +
> +
> +#define CV_IOC_MAXNR 7
> +
> +
> +#define GET_STATUS 0
> +
> +#define GET_DESCRIPTOR 0x06
> +
> +#define GET_CONFIGURATION 0x08
> +
> +
> +#define VENDOR_WRITE_REQUEST_TYPE 0x42 // 0100 0010
> +
> +#define VENDOR_READ_REQUEST_TYPE 0xC2 // 1100 0010
> +
> +
> +#define ERR_DBG 0
> +
> +#define INIT_DBG 1
> +
> +#define INFO_DBG 2
> +
> +#define TX_DBG 3
> +
> +#define INTR_DBG 4
> +
> +typedef unsigned short cv_command_id;
> +
> +#define FW_UPGRADE_IN_SBL_MASK 0x80000000
> +#define FW_UPGRADE_IN_SBL_LAST_PKT_MASK 0x40000000
> +
> +/* Get a minor range for your devices from the usb maintainer */
> +#define USB_CV_MINOR_BASE 192
> +#define BUFFER_SIZE 4096
> +#define IN_BUFFER_SIZE 99000
> +
> +#define OUT_BUFFER_SIZE 4096
> +#define OUT_BUFFER_SIZE_LIMIT 524288 /* 512 KB */
> +
> +#define DISPLEN 0x08
> +
> +
> +#define to_cv_dev(d) container_of(d, struct usb_cv, kref)
> +
> +#define DEVICE_NAME "usb/cv"
> +
> +#define MAX_WAIT_TX_TIME 10
> +#define MAX_WAIT_RX_TIME 10
> +
> +#ifdef __KERNEL__
> +/* Structure to hold all of our device specific stuff */
> +struct usb_cv {
> + spinlock_t cv_lock;
> + struct usb_device* udev; /* the usb device for this device */
> + struct usb_interface* interface; /* the interface for this device */
> +
> + size_t bulk_in_size; /* the size of the receive buffer */
> +
> + size_t bulk_out_size; /* the size of the maximum transmit buffer */
> +
> + size_t interrupt_in_size; /* the size of the interrupt buffer */
> +
> + __u8 bulk_in_endpointAddr; /* the address of the bulk in endpoint */
> +
> + __u8 bulk_out_endpointAddr; /* the address of the bulk out endpoint */
> +
> +
> +
> + struct usb_endpoint_descriptor* interrupt_in_endpoint;
> +
> +
> + struct urb* interrupt_in_urb;
> +
> + struct urb* bulk_in_urb;
> +
> + struct urb* bulk_out_urb;
> +
> + struct urb* descriptor_in_urb;
> +
> +
> +
> + unsigned char* interrupt_in_buffer;
> +
> + unsigned char* bulk_out_buffer;
> +
> + unsigned char* bulk_in_buffer;
> +
> + unsigned char* descriptor_in_buffer;
> +
> + unsigned char* cmd_in_buffer;
> +
> + unsigned char* out_buffer;
> +
> + unsigned char* in_buffer;
> +
> +
> +
> + struct usb_ctrlrequest* cr_desc;
> +
> + struct usb_ctrlrequest* cr_submit_cmd;
> +
> + struct usb_ctrlrequest* cr_get_cmd;
> +
> +
> +
> + int probe_done;
> +
> + int actual_length;
> +
> + struct tasklet_struct cv_dev_tl;
> +
> + int write_count;
> +
> + struct kref kref;
> +
> + int tx_status;
> +
> + int rx_status;
> +
> +};
> +#endif
> +
> +/* Global variable that defines the present debug level of the driver. */
> +static int debug_level = ERR_DBG;
> +static int interval = 1;
> +#define DBG_PRINT(dbg_level, args...) if(!(debug_level<dbg_level)) printk(args)
> +
> +#endif /* _USB_CV_H_ */
>
applied to linux-oem, thanks
--
t
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