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| author | Sakari Ailus <sakari.ailus@iki.fi> | 2012-01-11 10:25:15 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-05-14 13:44:11 +0200 |
| commit | af88be3887c1a0b20d0792c3c237a67c73ef3286 (patch) | |
| tree | 79047160436c63bab20241807a61d8030b6a0527 /include/media | |
| parent | [media] v4l: Add DPCM compressed raw bayer pixel formats (diff) | |
| download | linux-af88be3887c1a0b20d0792c3c237a67c73ef3286.tar.xz linux-af88be3887c1a0b20d0792c3c237a67c73ef3286.zip | |
[media] media: Add link_validate() op to check links to the sink pad
The purpose of the link_validate() op is to allow an entity driver to ensure
that the properties of the pads at the both ends of the link are suitable
for starting the pipeline. link_validate is called on sink pads on active
links which belong to the active part of the graph.
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 'include/media')
| -rw-r--r-- | include/media/media-entity.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/media/media-entity.h b/include/media/media-entity.h index 29e7bba78ffe..0c16f518ee09 100644 --- a/include/media/media-entity.h +++ b/include/media/media-entity.h @@ -46,6 +46,7 @@ struct media_entity_operations { int (*link_setup)(struct media_entity *entity, const struct media_pad *local, const struct media_pad *remote, u32 flags); + int (*link_validate)(struct media_link *link); }; struct media_entity { @@ -140,8 +141,8 @@ void media_entity_graph_walk_start(struct media_entity_graph *graph, struct media_entity *entity); struct media_entity * media_entity_graph_walk_next(struct media_entity_graph *graph); -void media_entity_pipeline_start(struct media_entity *entity, - struct media_pipeline *pipe); +__must_check int media_entity_pipeline_start(struct media_entity *entity, + struct media_pipeline *pipe); void media_entity_pipeline_stop(struct media_entity *entity); #define media_entity_call(entity, operation, args...) \ |