static ssize_t pwc_video_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos);
static unsigned int pwc_video_poll(struct file *file, poll_table *wait);
-static long pwc_video_ioctl(struct file *file,
- unsigned int ioctlnr, unsigned long arg);
static int pwc_video_mmap(struct file *file, struct vm_area_struct *vma);
static const struct v4l2_file_operations pwc_fops = {
.read = pwc_video_read,
.poll = pwc_video_poll,
.mmap = pwc_video_mmap,
- .unlocked_ioctl = pwc_video_ioctl,
+ .unlocked_ioctl = video_ioctl2,
};
static struct video_device pwc_template = {
.name = "Philips Webcam", /* Filled in later */
return -EBUSY;
}
- mutex_lock(&pdev->modlock);
pwc_construct(pdev); /* set min/max sizes correct */
if (!pdev->usb_init) {
PWC_DEBUG_OPEN("Doing first time initialization.\n");
if (i < 0) {
PWC_DEBUG_OPEN("Failed to allocate buffers memory.\n");
pwc_free_buffers(pdev);
- mutex_unlock(&pdev->modlock);
return i;
}
if (i) {
PWC_DEBUG_OPEN("Second attempt at set_video_mode failed.\n");
pwc_free_buffers(pdev);
- mutex_unlock(&pdev->modlock);
return i;
}
pdev->vopen++;
file->private_data = vdev;
- mutex_unlock(&pdev->modlock);
PWC_DEBUG_OPEN("<< video_open() returns 0.\n");
return 0;
}
PWC_DEBUG_OPEN(">> video_close called(vdev = 0x%p).\n", vdev);
pdev = video_get_drvdata(vdev);
- mutex_lock(&pdev->modlock);
if (pdev->vopen == 0)
PWC_DEBUG_MODULE("video_close() called on closed device?\n");
if (device_hint[hint].pdev == pdev)
device_hint[hint].pdev = NULL;
}
- mutex_unlock(&pdev->modlock);
return 0;
}
if (pdev == NULL)
return -EFAULT;
- mutex_lock(&pdev->modlock);
if (pdev->error_status) {
rv = -pdev->error_status; /* Something happened, report what. */
goto err_out;
rv = -ERESTARTSYS;
goto err_out;
}
+ mutex_unlock(&pdev->modlock);
schedule();
set_current_state(TASK_INTERRUPTIBLE);
+ mutex_lock(&pdev->modlock);
}
remove_wait_queue(&pdev->frameq, &wait);
set_current_state(TASK_RUNNING);
pdev->image_read_pos = 0;
pwc_next_image(pdev);
}
- mutex_unlock(&pdev->modlock);
return count;
err_out:
- mutex_unlock(&pdev->modlock);
return rv;
}
return -EFAULT;
/* Start the stream (if not already started) */
- mutex_lock(&pdev->modlock);
ret = pwc_isoc_init(pdev);
- mutex_unlock(&pdev->modlock);
if (ret)
return ret;
return 0;
}
-static long pwc_video_ioctl(struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct video_device *vdev = file->private_data;
- struct pwc_device *pdev;
- long r = -ENODEV;
-
- if (!vdev)
- goto out;
- pdev = video_get_drvdata(vdev);
-
- mutex_lock(&pdev->modlock);
- if (!pdev->unplugged)
- r = video_usercopy(file, cmd, arg, pwc_video_do_ioctl);
- mutex_unlock(&pdev->modlock);
-out:
- return r;
-}
-
static int pwc_video_mmap(struct file *file, struct vm_area_struct *vma)
{
struct video_device *vdev = file->private_data;
}
memcpy(pdev->vdev, &pwc_template, sizeof(pwc_template));
pdev->vdev->parent = &intf->dev;
+ pdev->vdev->lock = &pdev->modlock;
+ pdev->vdev->ioctl_ops = &pwc_ioctl_ops;
strcpy(pdev->vdev->name, name);
video_set_drvdata(pdev->vdev, pdev);