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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2010-12-29 17:36:50 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-03-22 20:37:56 +0100 |
| commit | fc5602be7ca5b55174c5d6595089718779b28dfa (patch) | |
| tree | 135b5632bb714d8786abb1a96fe50d7dd5a794a3 | |
| parent | [media] v4l2: add v4l2_prio_state to v4l2_device and video_device (diff) | |
| download | linux-fc5602be7ca5b55174c5d6595089718779b28dfa.tar.xz linux-fc5602be7ca5b55174c5d6595089718779b28dfa.zip | |
[media] v4l2-fh: implement v4l2_priority support
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/video/v4l2-fh.c | 4 | ||||
| -rw-r--r-- | include/media/v4l2-fh.h | 1 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/media/video/v4l2-fh.c b/drivers/media/video/v4l2-fh.c index d78f184f40c5..78a1608a09d6 100644 --- a/drivers/media/video/v4l2-fh.c +++ b/drivers/media/video/v4l2-fh.c @@ -33,6 +33,8 @@ int v4l2_fh_init(struct v4l2_fh *fh, struct video_device *vdev) fh->vdev = vdev; INIT_LIST_HEAD(&fh->list); set_bit(V4L2_FL_USES_V4L2_FH, &fh->vdev->flags); + fh->prio = V4L2_PRIORITY_UNSET; + BUG_ON(vdev->prio == NULL); /* * fh->events only needs to be initialized if the driver @@ -51,6 +53,7 @@ void v4l2_fh_add(struct v4l2_fh *fh) { unsigned long flags; + v4l2_prio_open(fh->vdev->prio, &fh->prio); spin_lock_irqsave(&fh->vdev->fh_lock, flags); list_add(&fh->list, &fh->vdev->fh_list); spin_unlock_irqrestore(&fh->vdev->fh_lock, flags); @@ -64,6 +67,7 @@ void v4l2_fh_del(struct v4l2_fh *fh) spin_lock_irqsave(&fh->vdev->fh_lock, flags); list_del_init(&fh->list); spin_unlock_irqrestore(&fh->vdev->fh_lock, flags); + v4l2_prio_close(fh->vdev->prio, fh->prio); } EXPORT_SYMBOL_GPL(v4l2_fh_del); diff --git a/include/media/v4l2-fh.h b/include/media/v4l2-fh.h index 1d72dde320bf..5fc5ba96e1d2 100644 --- a/include/media/v4l2-fh.h +++ b/include/media/v4l2-fh.h @@ -35,6 +35,7 @@ struct v4l2_fh { struct list_head list; struct video_device *vdev; struct v4l2_events *events; /* events, pending and subscribed */ + enum v4l2_priority prio; }; /* |