diff options
| author | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2019-01-21 14:32:25 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-02-07 18:12:43 +0100 |
| commit | 597f8e9c13644e4fcf4c1d01c2317c78b2e2df92 (patch) | |
| tree | 65bc70b1d4ea12dea892f0a0950564cc9a93a093 /drivers/media/usb/cpia2 | |
| parent | media: meye: use u64 for the timestamp internally (diff) | |
| download | linux-597f8e9c13644e4fcf4c1d01c2317c78b2e2df92.tar.xz linux-597f8e9c13644e4fcf4c1d01c2317c78b2e2df92.zip | |
media: cpia2: 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/cpia2')
| -rw-r--r-- | drivers/media/usb/cpia2/cpia2.h | 2 | ||||
| -rw-r--r-- | drivers/media/usb/cpia2/cpia2_usb.c | 2 | ||||
| -rw-r--r-- | drivers/media/usb/cpia2/cpia2_v4l.c | 11 |
3 files changed, 5 insertions, 10 deletions
diff --git a/drivers/media/usb/cpia2/cpia2.h b/drivers/media/usb/cpia2/cpia2.h index ab238ac8bfc0..d0a464882510 100644 --- a/drivers/media/usb/cpia2/cpia2.h +++ b/drivers/media/usb/cpia2/cpia2.h @@ -350,7 +350,7 @@ struct cpia2_sbuf { }; struct framebuf { - struct timeval timestamp; + u64 ts; unsigned long seq; int num; int length; diff --git a/drivers/media/usb/cpia2/cpia2_usb.c b/drivers/media/usb/cpia2/cpia2_usb.c index a771e0a52610..e5d8dee38fe4 100644 --- a/drivers/media/usb/cpia2/cpia2_usb.c +++ b/drivers/media/usb/cpia2/cpia2_usb.c @@ -324,7 +324,7 @@ static void cpia2_usb_complete(struct urb *urb) continue; } DBG("Start of frame pattern found\n"); - v4l2_get_timestamp(&cam->workbuff->timestamp); + cam->workbuff->ts = ktime_get_ns(); cam->workbuff->seq = cam->frame_count++; cam->workbuff->data[0] = 0xFF; cam->workbuff->data[1] = 0xD8; diff --git a/drivers/media/usb/cpia2/cpia2_v4l.c b/drivers/media/usb/cpia2/cpia2_v4l.c index 748739c2b8b2..95c0bd4a19dc 100644 --- a/drivers/media/usb/cpia2/cpia2_v4l.c +++ b/drivers/media/usb/cpia2/cpia2_v4l.c @@ -833,7 +833,7 @@ static int cpia2_querybuf(struct file *file, void *fh, struct v4l2_buffer *buf) break; case FRAME_READY: buf->bytesused = cam->buffers[buf->index].length; - buf->timestamp = cam->buffers[buf->index].timestamp; + buf->timestamp = ns_to_timeval(cam->buffers[buf->index].ts); buf->sequence = cam->buffers[buf->index].seq; buf->flags = V4L2_BUF_FLAG_DONE; break; @@ -889,12 +889,7 @@ static int find_earliest_filled_buffer(struct camera_data *cam) found = i; } else { /* find which buffer is earlier */ - struct timeval *tv1, *tv2; - tv1 = &cam->buffers[i].timestamp; - tv2 = &cam->buffers[found].timestamp; - if(tv1->tv_sec < tv2->tv_sec || - (tv1->tv_sec == tv2->tv_sec && - tv1->tv_usec < tv2->tv_usec)) + if (cam->buffers[i].ts < cam->buffers[found].ts) found = i; } } @@ -945,7 +940,7 @@ static int cpia2_dqbuf(struct file *file, void *fh, struct v4l2_buffer *buf) buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_DONE | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; buf->field = V4L2_FIELD_NONE; - buf->timestamp = cam->buffers[buf->index].timestamp; + buf->timestamp = ns_to_timeval(cam->buffers[buf->index].ts); buf->sequence = cam->buffers[buf->index].seq; buf->m.offset = cam->buffers[buf->index].data - cam->frame_buffer; buf->length = cam->frame_size; |