From: Hans Verkuil Date: Wed, 29 Dec 2010 16:36:50 +0000 (-0300) Subject: [media] v4l2-fh: implement v4l2_priority support X-Git-Tag: firefly_0821_release~7613^2~1709^2~74 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=fc5602be7ca5b55174c5d6595089718779b28dfa;p=firefly-linux-kernel-4.4.55.git [media] v4l2-fh: implement v4l2_priority support Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- 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; }; /*