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authorMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-08-21 18:17:40 +0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2016-01-11 17:18:49 +0300
commitfa17b46a6a01013f48c33934c09e02f51f099f2b (patch)
tree393357396df1b838139c53315c61550c235f92c2 /include/media
parentfef486a07d69cbcae81bf65a6817ff7383104a24 (diff)
downloadlinux-fa17b46a6a01013f48c33934c09e02f51f099f2b.tar.xz
[media] media: add macros to check if subdev or V4L2 DMA
As we'll be removing entity subtypes from the Kernel, we need to provide a way for drivers and core to check if a given entity is represented by a V4L2 subdev or if it is an V4L2 I/O entity (typically with DMA). Drivers that create entities that don't belong to any defined subdev category should use MEDIA_ENT_T_V4L2_SUBDEV_UNKNOWN. Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'include/media')
-rw-r--r--include/media/media-entity.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/include/media/media-entity.h b/include/media/media-entity.h
index ca35e07d9348..2596878f4b9f 100644
--- a/include/media/media-entity.h
+++ b/include/media/media-entity.h
@@ -220,6 +220,40 @@ static inline u32 media_gobj_gen_id(enum media_gobj_type type, u32 local_id)
return id;
}
+static inline bool is_media_entity_v4l2_io(struct media_entity *entity)
+{
+ if (!entity)
+ return false;
+
+ switch (entity->type) {
+ case MEDIA_ENT_T_V4L2_VIDEO:
+ case MEDIA_ENT_T_V4L2_VBI:
+ case MEDIA_ENT_T_V4L2_SWRADIO:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static inline bool is_media_entity_v4l2_subdev(struct media_entity *entity)
+{
+ if (!entity)
+ return false;
+
+ switch (entity->type) {
+ case MEDIA_ENT_T_V4L2_SUBDEV_UNKNOWN:
+ case MEDIA_ENT_T_V4L2_SUBDEV_SENSOR:
+ case MEDIA_ENT_T_V4L2_SUBDEV_FLASH:
+ case MEDIA_ENT_T_V4L2_SUBDEV_LENS:
+ case MEDIA_ENT_T_V4L2_SUBDEV_DECODER:
+ case MEDIA_ENT_T_V4L2_SUBDEV_TUNER:
+ return true;
+
+ default:
+ return false;
+ }
+}
+
#define MEDIA_ENTITY_ENUM_MAX_DEPTH 16
#define MEDIA_ENTITY_ENUM_MAX_ID 64