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authorSakari Ailus <sakari.ailus@iki.fi>2011-06-15 15:58:48 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-08-29 12:38:51 -0300
commit69d232ae8e95a229e7544989d6014e875deeb121 (patch)
tree62cf4402ced27602fc1c7d2be90d6b8d4d4aa3aa /drivers/media/video/omap3isp/ispccdc.c
parenteab00a0da292fa7118aaf20da78e834866de00ae (diff)
[media] omap3isp: ccdc: Use generic frame sync event instead of private HS_VS event
The ccdc block in the omap3isp produces events whenever it starts receiving a new frame. A private HS_VS event was used for this previously. Now, the generic V4L2_EVENT_FRAME_SYNC event is being used for the purpose. This patch also provides the frame sequence number to user space. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/omap3isp/ispccdc.c')
-rw-r--r--drivers/media/video/omap3isp/ispccdc.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/media/video/omap3isp/ispccdc.c b/drivers/media/video/omap3isp/ispccdc.c
index 9d3459de04b..40b141c86c6 100644
--- a/drivers/media/video/omap3isp/ispccdc.c
+++ b/drivers/media/video/omap3isp/ispccdc.c
@@ -1404,11 +1404,14 @@ static int __ccdc_handle_stopping(struct isp_ccdc_device *ccdc, u32 event)
static void ccdc_hs_vs_isr(struct isp_ccdc_device *ccdc)
{
+ struct isp_pipeline *pipe =
+ to_isp_pipeline(&ccdc->video_out.video.entity);
struct video_device *vdev = &ccdc->subdev.devnode;
struct v4l2_event event;
memset(&event, 0, sizeof(event));
- event.type = V4L2_EVENT_OMAP3ISP_HS_VS;
+ event.type = V4L2_EVENT_FRAME_SYNC;
+ event.u.frame_sync.frame_sequence = atomic_read(&pipe->frame_number);
v4l2_event_queue(vdev, &event);
}
@@ -1690,7 +1693,11 @@ static long ccdc_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
static int ccdc_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
struct v4l2_event_subscription *sub)
{
- if (sub->type != V4L2_EVENT_OMAP3ISP_HS_VS)
+ if (sub->type != V4L2_EVENT_FRAME_SYNC)
+ return -EINVAL;
+
+ /* line number is zero at frame start */
+ if (sub->id != 0)
return -EINVAL;
return v4l2_event_subscribe(fh, sub, OMAP3ISP_CCDC_NEVENTS);