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authorHans Verkuil <hverkuil-cisco@xs4all.nl>2019-01-21 16:32:25 +0300
committerMauro Carvalho Chehab <mchehab+samsung@kernel.org>2019-02-07 20:12:43 +0300
commit597f8e9c13644e4fcf4c1d01c2317c78b2e2df92 (patch)
tree65bc70b1d4ea12dea892f0a0950564cc9a93a093 /drivers/media/usb
parentcb7130ea67c4319bbf2d810f245ee6f89bbf6ae7 (diff)
downloadlinux-597f8e9c13644e4fcf4c1d01c2317c78b2e2df92.tar.xz
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')
-rw-r--r--drivers/media/usb/cpia2/cpia2.h2
-rw-r--r--drivers/media/usb/cpia2/cpia2_usb.c2
-rw-r--r--drivers/media/usb/cpia2/cpia2_v4l.c11
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;