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[media] v4l2: allow v4l2_subdev_edid to be used with video nodes

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Struct v4l2_subdev_edid and the VIDIOC_SUBDEV_G/S_EDID ioctls were
specific for subdevices, but for hardware with a simple video pipeline
you do not need/want to create subdevice nodes to just get/set the EDID.

Move the v4l2_subdev_edid struct to v4l2-common.h and rename as
v4l2_edid. Add the same ioctls to videodev2.h as well, thus allowing
this API to be used with both video nodes and v4l-subdev nodes.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Hans Verkuil 2014-03-04 07:46:47 -03:00 committed by Mauro Carvalho Chehab
parent bc826d6e39
commit 254a477701
3 changed files with 15 additions and 9 deletions
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8
include/uapi/linux/v4l2-common.h
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@ -68,4 +68,12 @@
#define V4L2_SUBDEV_SEL_FLAG_SIZE_LE V4L2_SEL_FLAG_LE #define V4L2_SUBDEV_SEL_FLAG_SIZE_LE V4L2_SEL_FLAG_LE
#define V4L2_SUBDEV_SEL_FLAG_KEEP_CONFIG V4L2_SEL_FLAG_KEEP_CONFIG #define V4L2_SUBDEV_SEL_FLAG_KEEP_CONFIG V4L2_SEL_FLAG_KEEP_CONFIG
struct v4l2_edid {
__u32 pad;
__u32 start_block;
__u32 blocks;
__u32 reserved[5];
__u8 __user *edid;
};
#endif /* __V4L2_COMMON__ */ #endif /* __V4L2_COMMON__ */

14
include/uapi/linux/v4l2-subdev.h
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@ -148,13 +148,8 @@ struct v4l2_subdev_selection {
__u32 reserved[8]; __u32 reserved[8];
}; };
struct v4l2_subdev_edid { /* Backwards compatibility define --- to be removed */
__u32 pad; #define v4l2_subdev_edid v4l2_edid
__u32 start_block;
__u32 blocks;
__u32 reserved[5];
__u8 __user *edid;
};
#define VIDIOC_SUBDEV_G_FMT _IOWR('V', 4, struct v4l2_subdev_format) #define VIDIOC_SUBDEV_G_FMT _IOWR('V', 4, struct v4l2_subdev_format)
#define VIDIOC_SUBDEV_S_FMT _IOWR('V', 5, struct v4l2_subdev_format) #define VIDIOC_SUBDEV_S_FMT _IOWR('V', 5, struct v4l2_subdev_format)
@ -174,7 +169,8 @@ struct v4l2_subdev_edid {
_IOWR('V', 61, struct v4l2_subdev_selection) _IOWR('V', 61, struct v4l2_subdev_selection)
#define VIDIOC_SUBDEV_S_SELECTION \ #define VIDIOC_SUBDEV_S_SELECTION \
_IOWR('V', 62, struct v4l2_subdev_selection) _IOWR('V', 62, struct v4l2_subdev_selection)
#define VIDIOC_SUBDEV_G_EDID _IOWR('V', 40, struct v4l2_subdev_edid) /* These two G/S_EDID ioctls are identical to the ioctls in videodev2.h */
#define VIDIOC_SUBDEV_S_EDID _IOWR('V', 41, struct v4l2_subdev_edid) #define VIDIOC_SUBDEV_G_EDID _IOWR('V', 40, struct v4l2_edid)
#define VIDIOC_SUBDEV_S_EDID _IOWR('V', 41, struct v4l2_edid)
#endif #endif

2
include/uapi/linux/videodev2.h
View File

@ -1913,6 +1913,8 @@ struct v4l2_create_buffers {
#define VIDIOC_QUERYMENU _IOWR('V', 37, struct v4l2_querymenu) #define VIDIOC_QUERYMENU _IOWR('V', 37, struct v4l2_querymenu)
#define VIDIOC_G_INPUT _IOR('V', 38, int) #define VIDIOC_G_INPUT _IOR('V', 38, int)
#define VIDIOC_S_INPUT _IOWR('V', 39, int) #define VIDIOC_S_INPUT _IOWR('V', 39, int)
#define VIDIOC_G_EDID _IOWR('V', 40, struct v4l2_edid)
#define VIDIOC_S_EDID _IOWR('V', 41, struct v4l2_edid)
#define VIDIOC_G_OUTPUT _IOR('V', 46, int) #define VIDIOC_G_OUTPUT _IOR('V', 46, int)
#define VIDIOC_S_OUTPUT _IOWR('V', 47, int) #define VIDIOC_S_OUTPUT _IOWR('V', 47, int)
#define VIDIOC_ENUMOUTPUT _IOWR('V', 48, struct v4l2_output) #define VIDIOC_ENUMOUTPUT _IOWR('V', 48, struct v4l2_output)