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author | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-08-14 12:50:08 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2016-01-11 12:18:42 -0200 |
commit | 18710dc67a433ed2c3ecaaffefd8e34502e53262 (patch) | |
tree | 641ab8210e297bb165a53536035d23d3e1df7dd5 | |
parent | bfab2aacccfc144e2cceccb71ec89f1eff1b8c51 (diff) | |
download | op-kernel-dev-18710dc67a433ed2c3ecaaffefd8e34502e53262.zip op-kernel-dev-18710dc67a433ed2c3ecaaffefd8e34502e53262.tar.gz |
[media] media: use media_gobj inside pads
PADs also need unique object IDs that won't conflict with
the entity object IDs.
The pad objects are currently created via media_entity_init()
and, once created, never change.
While this will likely change in the future in order to
support dynamic changes, for now we'll keep PADs as arrays
and initialize the media_gobj embedded structs when
registering the entity.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
-rw-r--r-- | drivers/media/media-device.c | 11 | ||||
-rw-r--r-- | drivers/media/media-entity.c | 3 | ||||
-rw-r--r-- | include/media/media-device.h | 2 | ||||
-rw-r--r-- | include/media/media-entity.h | 3 |
4 files changed, 19 insertions, 0 deletions
diff --git a/drivers/media/media-device.c b/drivers/media/media-device.c index 81d6a13..3bdda16 100644 --- a/drivers/media/media-device.c +++ b/drivers/media/media-device.c @@ -427,6 +427,8 @@ EXPORT_SYMBOL_GPL(media_device_unregister); int __must_check media_device_register_entity(struct media_device *mdev, struct media_entity *entity) { + int i; + /* Warn if we apparently re-register an entity */ WARN_ON(entity->parent != NULL); entity->parent = mdev; @@ -435,6 +437,12 @@ int __must_check media_device_register_entity(struct media_device *mdev, /* Initialize media_gobj embedded at the entity */ media_gobj_init(mdev, MEDIA_GRAPH_ENTITY, &entity->graph_obj); list_add_tail(&entity->list, &mdev->entities); + + /* Initialize objects at the pads */ + for (i = 0; i < entity->num_pads; i++) + media_gobj_init(mdev, MEDIA_GRAPH_PAD, + &entity->pads[i].graph_obj); + spin_unlock(&mdev->lock); return 0; @@ -450,12 +458,15 @@ EXPORT_SYMBOL_GPL(media_device_register_entity); */ void media_device_unregister_entity(struct media_entity *entity) { + int i; struct media_device *mdev = entity->parent; if (mdev == NULL) return; spin_lock(&mdev->lock); + for (i = 0; i < entity->num_pads; i++) + media_gobj_remove(&entity->pads[i].graph_obj); media_gobj_remove(&entity->graph_obj); list_del(&entity->list); spin_unlock(&mdev->lock); diff --git a/drivers/media/media-entity.c b/drivers/media/media-entity.c index 9f6f056..2d94c85 100644 --- a/drivers/media/media-entity.c +++ b/drivers/media/media-entity.c @@ -48,6 +48,9 @@ void media_gobj_init(struct media_device *mdev, case MEDIA_GRAPH_ENTITY: gobj->id = media_gobj_gen_id(type, ++mdev->entity_id); break; + case MEDIA_GRAPH_PAD: + gobj->id = media_gobj_gen_id(type, ++mdev->pad_id); + break; } } diff --git a/include/media/media-device.h b/include/media/media-device.h index f6deef6..9493721 100644 --- a/include/media/media-device.h +++ b/include/media/media-device.h @@ -42,6 +42,7 @@ struct device; * @hw_revision: Hardware device revision * @driver_version: Device driver version * @entity_id: Unique ID used on the last entity registered + * @pad_id: Unique ID used on the last pad registered * @entities: List of registered entities * @lock: Entities list lock * @graph_mutex: Entities graph operation lock @@ -69,6 +70,7 @@ struct media_device { u32 driver_version; u32 entity_id; + u32 pad_id; struct list_head entities; diff --git a/include/media/media-entity.h b/include/media/media-entity.h index 4faa4d8..b91c78d 100644 --- a/include/media/media-entity.h +++ b/include/media/media-entity.h @@ -34,9 +34,11 @@ * enum media_gobj_type - type of a graph object * * @MEDIA_GRAPH_ENTITY: Identify a media entity + * @MEDIA_GRAPH_PAD: Identify a media pad */ enum media_gobj_type { MEDIA_GRAPH_ENTITY, + MEDIA_GRAPH_PAD, }; #define MEDIA_BITS_PER_TYPE 8 @@ -72,6 +74,7 @@ struct media_link { }; struct media_pad { + struct media_gobj graph_obj; struct media_entity *entity; /* Entity this pad belongs to */ u16 index; /* Pad index in the entity pads array */ unsigned long flags; /* Pad flags (MEDIA_PAD_FL_*) */ |