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authorHans Verkuil <hverkuil-cisco@xs4all.nl>2019-01-21 16:32:27 +0300
committerMauro Carvalho Chehab <mchehab+samsung@kernel.org>2019-02-07 20:19:05 +0300
commit459d2a5d1e696b6fb029df1be041380daff94032 (patch)
treea54bce0351b2092351d963cae36eae46d7b9de8f /drivers/media/usb
parentbbd217a44a7024018abdd2aee63c991ad3b01e4b (diff)
downloadlinux-459d2a5d1e696b6fb029df1be041380daff94032.tar.xz
media: usbvision: use u64 for the timestamp internally
Just like vb2 does, use u64 internally to store the timestamps of the buffers. Only convert to timeval when interfacing with userspace. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/usb')
-rw-r--r--drivers/media/usb/usbvision/usbvision-core.c2
-rw-r--r--drivers/media/usb/usbvision/usbvision-video.c4
-rw-r--r--drivers/media/usb/usbvision/usbvision.h2
3 files changed, 4 insertions, 4 deletions
diff --git a/drivers/media/usb/usbvision/usbvision-core.c b/drivers/media/usb/usbvision/usbvision-core.c
index 31e0e98d6daf..2b843a7b27a4 100644
--- a/drivers/media/usb/usbvision/usbvision-core.c
+++ b/drivers/media/usb/usbvision/usbvision-core.c
@@ -1160,7 +1160,7 @@ static void usbvision_parse_data(struct usb_usbvision *usbvision)
if (newstate == parse_state_next_frame) {
frame->grabstate = frame_state_done;
- v4l2_get_timestamp(&(frame->timestamp));
+ frame->ts = ktime_get_ns();
frame->sequence = usbvision->frame_num;
spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
diff --git a/drivers/media/usb/usbvision/usbvision-video.c b/drivers/media/usb/usbvision/usbvision-video.c
index dd2ff8ed6c6a..e611052ebf59 100644
--- a/drivers/media/usb/usbvision/usbvision-video.c
+++ b/drivers/media/usb/usbvision/usbvision-video.c
@@ -706,7 +706,7 @@ static int vidioc_querybuf(struct file *file,
vb->length = usbvision->curwidth *
usbvision->curheight *
usbvision->palette.bytes_per_pixel;
- vb->timestamp = usbvision->frame[vb->index].timestamp;
+ vb->timestamp = ns_to_timeval(usbvision->frame[vb->index].ts);
vb->sequence = usbvision->frame[vb->index].sequence;
return 0;
}
@@ -775,7 +775,7 @@ static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *vb)
V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
vb->index = f->index;
vb->sequence = f->sequence;
- vb->timestamp = f->timestamp;
+ vb->timestamp = ns_to_timeval(f->ts);
vb->field = V4L2_FIELD_NONE;
vb->bytesused = f->scanlength;
diff --git a/drivers/media/usb/usbvision/usbvision.h b/drivers/media/usb/usbvision/usbvision.h
index 017e7baf5747..d55088b4fd63 100644
--- a/drivers/media/usb/usbvision/usbvision.h
+++ b/drivers/media/usb/usbvision/usbvision.h
@@ -316,7 +316,7 @@ struct usbvision_frame {
long bytes_read; /* amount of scanlength that has been read from data */
struct usbvision_v4l2_format_st v4l2_format; /* format the user needs*/
int v4l2_linesize; /* bytes for one videoline*/
- struct timeval timestamp;
+ u64 ts;
int sequence; /* How many video frames we send to user */
};