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| author | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-08-21 18:17:40 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2016-01-11 17:18:49 +0300 |
| commit | fa17b46a6a01013f48c33934c09e02f51f099f2b (patch) | |
| tree | 393357396df1b838139c53315c61550c235f92c2 | |
| parent | fef486a07d69cbcae81bf65a6817ff7383104a24 (diff) | |
| download | linux-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>
| -rw-r--r-- | include/media/media-entity.h | 34 | ||||
| -rw-r--r-- | include/uapi/linux/media.h | 3 |
2 files changed, 37 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 diff --git a/include/uapi/linux/media.h b/include/uapi/linux/media.h index 8e9896820bee..c9314645d933 100644 --- a/include/uapi/linux/media.h +++ b/include/uapi/linux/media.h @@ -75,6 +75,9 @@ struct media_device_info { #define MEDIA_ENT_T_V4L2_SWRADIO (MEDIA_ENT_T_V4L2_BASE + 6) /* V4L2 Sub-device entities */ + +#define MEDIA_ENT_T_V4L2_SUBDEV_UNKNOWN MEDIA_ENT_T_V4L2_SUBDEV_BASE + #define MEDIA_ENT_T_V4L2_SUBDEV_SENSOR (MEDIA_ENT_T_V4L2_SUBDEV_BASE + 1) #define MEDIA_ENT_T_V4L2_SUBDEV_FLASH (MEDIA_ENT_T_V4L2_SUBDEV_BASE + 2) #define MEDIA_ENT_T_V4L2_SUBDEV_LENS (MEDIA_ENT_T_V4L2_SUBDEV_BASE + 3) |