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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-10 15:09:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-10 15:09:54 -0700
commit7ae0dea900b027cd90e8a3e14deca9a19e17638b (patch)
tree428cbe411bba90f6580ae21338276c949e91f23a /drivers/media/video/uvc/uvc_queue.c
parent6c74700fdb8e3bc34c31790384a8ec16c4fefd97 (diff)
parent560afa7d85bdfb294506afd3032c315e6827824f (diff)
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (94 commits) V4L/DVB: tvp7002: fix write to H-PLL Feedback Divider LSB register V4L/DVB: dvb: siano: free spinlock before schedule() V4L/DVB: media: video: pvrusb2: remove custom hex_to_bin() V4L/DVB: drivers: usbvideo: remove custom implementation of hex_to_bin() V4L/DVB: Report supported QAM modes on bt8xx V4L/DVB: media: ir-keytable: null dereference in debug code V4L/DVB: ivtv: convert to the new control framework V4L/DVB: ivtv: convert gpio subdev to new control framework V4L/DVB: wm8739: convert to the new control framework V4L/DVB: cs53l32a: convert to new control framework V4L/DVB: wm8775: convert to the new control framework V4L/DVB: cx2341x: convert to the control framework V4L/DVB: cx25840: convert to the new control framework V4L/DVB: cx25840/ivtv: replace ugly priv control with s_config V4L/DVB: saa717x: convert to the new control framework V4L/DVB: msp3400: convert to the new control framework V4L/DVB: saa7115: convert to the new control framework V4L/DVB: v4l2: hook up the new control framework into the core framework V4L/DVB: Documentation: add v4l2-controls.txt documenting the new controls API V4L/DVB: v4l2-ctrls: Whitespace cleanups ...
Diffstat (limited to 'drivers/media/video/uvc/uvc_queue.c')
-rw-r--r--drivers/media/video/uvc/uvc_queue.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/media/video/uvc/uvc_queue.c b/drivers/media/video/uvc/uvc_queue.c
index 133c78d113ac..e9928a415086 100644
--- a/drivers/media/video/uvc/uvc_queue.c
+++ b/drivers/media/video/uvc/uvc_queue.c
@@ -78,12 +78,14 @@
*
*/
-void uvc_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type)
+void uvc_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type,
+ int drop_corrupted)
{
mutex_init(&queue->mutex);
spin_lock_init(&queue->irqlock);
INIT_LIST_HEAD(&queue->mainqueue);
INIT_LIST_HEAD(&queue->irqqueue);
+ queue->flags = drop_corrupted ? UVC_QUEUE_DROP_CORRUPTED : 0;
queue->type = type;
}
@@ -435,8 +437,10 @@ int uvc_queue_enable(struct uvc_video_queue *queue, int enable)
uvc_queue_cancel(queue, 0);
INIT_LIST_HEAD(&queue->mainqueue);
- for (i = 0; i < queue->count; ++i)
+ for (i = 0; i < queue->count; ++i) {
+ queue->buffer[i].error = 0;
queue->buffer[i].state = UVC_BUF_STATE_IDLE;
+ }
queue->flags &= ~UVC_QUEUE_STREAMING;
}
@@ -488,8 +492,8 @@ struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue,
struct uvc_buffer *nextbuf;
unsigned long flags;
- if ((queue->flags & UVC_QUEUE_DROP_INCOMPLETE) &&
- buf->buf.length != buf->buf.bytesused) {
+ if ((queue->flags & UVC_QUEUE_DROP_CORRUPTED) && buf->error) {
+ buf->error = 0;
buf->state = UVC_BUF_STATE_QUEUED;
buf->buf.bytesused = 0;
return buf;
@@ -497,6 +501,7 @@ struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue,
spin_lock_irqsave(&queue->irqlock, flags);
list_del(&buf->queue);
+ buf->error = 0;
buf->state = UVC_BUF_STATE_DONE;
if (!list_empty(&queue->irqqueue))
nextbuf = list_first_entry(&queue->irqqueue, struct uvc_buffer,