diff options
Diffstat (limited to 'drivers/usb/gadget/uvc_queue.c')
| -rw-r--r-- | drivers/usb/gadget/uvc_queue.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/usb/gadget/uvc_queue.c b/drivers/usb/gadget/uvc_queue.c index e6170478ea9..1c29bc954db 100644 --- a/drivers/usb/gadget/uvc_queue.c +++ b/drivers/usb/gadget/uvc_queue.c @@ -20,6 +20,7 @@ #include <linux/vmalloc.h> #include <linux/wait.h> +#include <media/v4l2-common.h> #include <media/videobuf2-vmalloc.h> #include "uvc.h" @@ -136,6 +137,8 @@ static int uvc_queue_init(struct uvc_video_queue *queue, queue->queue.buf_struct_size = sizeof(struct uvc_buffer); queue->queue.ops = &uvc_queue_qops; queue->queue.mem_ops = &vb2_vmalloc_memops; + queue->queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC + | V4L2_BUF_FLAG_TSTAMP_SRC_EOF; ret = vb2_queue_init(&queue->queue); if (ret) return ret; @@ -193,12 +196,16 @@ static int uvc_queue_buffer(struct uvc_video_queue *queue, mutex_lock(&queue->mutex); ret = vb2_qbuf(&queue->queue, buf); + if (ret < 0) + goto done; + spin_lock_irqsave(&queue->irqlock, flags); ret = (queue->flags & UVC_QUEUE_PAUSED) != 0; queue->flags &= ~UVC_QUEUE_PAUSED; spin_unlock_irqrestore(&queue->irqlock, flags); - mutex_unlock(&queue->mutex); +done: + mutex_unlock(&queue->mutex); return ret; } @@ -375,14 +382,9 @@ static struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue, else nextbuf = NULL; - /* - * FIXME: with videobuf2, the sequence number or timestamp fields - * are valid only for video capture devices and the UVC gadget usually - * is a video output device. Keeping these until the specs are clear on - * this aspect. - */ + buf->buf.v4l2_buf.field = V4L2_FIELD_NONE; buf->buf.v4l2_buf.sequence = queue->sequence++; - do_gettimeofday(&buf->buf.v4l2_buf.timestamp); + v4l2_get_timestamp(&buf->buf.v4l2_buf.timestamp); vb2_set_plane_payload(&buf->buf, 0, buf->bytesused); vb2_buffer_done(&buf->buf, VB2_BUF_STATE_DONE); |