diff options
Diffstat (limited to 'drivers/media/media-entity.c')
| -rw-r--r-- | drivers/media/media-entity.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/media/media-entity.c b/drivers/media/media-entity.c index 3498551e618e..0b1cb3559140 100644 --- a/drivers/media/media-entity.c +++ b/drivers/media/media-entity.c @@ -662,6 +662,32 @@ static void __media_entity_remove_link(struct media_entity *entity, kfree(link); } +int media_get_pad_index(struct media_entity *entity, bool is_sink, + enum media_pad_signal_type sig_type) +{ + int i; + bool pad_is_sink; + + if (!entity) + return -EINVAL; + + for (i = 0; i < entity->num_pads; i++) { + if (entity->pads[i].flags == MEDIA_PAD_FL_SINK) + pad_is_sink = true; + else if (entity->pads[i].flags == MEDIA_PAD_FL_SOURCE) + pad_is_sink = false; + else + continue; /* This is an error! */ + + if (pad_is_sink != is_sink) + continue; + if (entity->pads[i].sig_type == sig_type) + return i; + } + return -EINVAL; +} +EXPORT_SYMBOL_GPL(media_get_pad_index); + int media_create_pad_link(struct media_entity *source, u16 source_pad, struct media_entity *sink, u16 sink_pad, u32 flags) |