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| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2014-03-23 16:25:09 +0100 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2014-05-15 11:07:47 -0500 |
| commit | 16bf900f50ec7fd2f45dc3a297d7936075cdae55 (patch) | |
| tree | cbb9167b509269731fdd9023c104d7f2a04bfdea | |
| parent | 79cb5b533aa9dbb05123b3b7d170e686da558a35 (diff) | |
| download | op-kernel-dev-16bf900f50ec7fd2f45dc3a297d7936075cdae55.zip op-kernel-dev-16bf900f50ec7fd2f45dc3a297d7936075cdae55.tar.gz | |
usb: gadget: uvc: Switch to monotonic clock for buffer timestamps
The wall time clock isn't useful for applications as it can jump around
due to time adjustement. Switch to the monotonic clock.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
| -rw-r--r-- | drivers/usb/gadget/uvc_queue.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/drivers/usb/gadget/uvc_queue.c b/drivers/usb/gadget/uvc_queue.c index 0bb5d50..9ac4ffe1 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" @@ -379,14 +380,8 @@ 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.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); |
