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| author | Sakari Ailus <sakari.ailus@iki.fi> | 2011-10-14 14:14:26 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-04-10 15:00:41 -0300 |
| commit | ae184cda8d0eebfea6cf217abc3f94a7cfffe24d (patch) | |
| tree | b158537e0b4f894578748784f581a18af5b2cc0c /include/linux/v4l2-subdev.h | |
| parent | c520331a52094182d6682fa7d6f630bdfbfc2974 (diff) | |
| download | linux-ae184cda8d0eebfea6cf217abc3f94a7cfffe24d.tar.gz linux-ae184cda8d0eebfea6cf217abc3f94a7cfffe24d.tar.bz2 linux-ae184cda8d0eebfea6cf217abc3f94a7cfffe24d.zip | |
[media] v4l: VIDIOC_SUBDEV_S_SELECTION and VIDIOC_SUBDEV_G_SELECTION IOCTLs
Add support for VIDIOC_SUBDEV_S_SELECTION and VIDIOC_SUBDEV_G_SELECTION
IOCTLs. They replace functionality provided by VIDIOC_SUBDEV_S_CROP and
VIDIOC_SUBDEV_G_CROP IOCTLs and also add new functionality (composing).
VIDIOC_SUBDEV_G_CROP and VIDIOC_SUBDEV_S_CROP continue to be supported.
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/linux/v4l2-subdev.h')
| -rw-r--r-- | include/linux/v4l2-subdev.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/include/linux/v4l2-subdev.h b/include/linux/v4l2-subdev.h index ed29cbbebfef..812019ee1e06 100644 --- a/include/linux/v4l2-subdev.h +++ b/include/linux/v4l2-subdev.h @@ -123,6 +123,43 @@ struct v4l2_subdev_frame_interval_enum { __u32 reserved[9]; }; +#define V4L2_SUBDEV_SEL_FLAG_SIZE_GE (1 << 0) +#define V4L2_SUBDEV_SEL_FLAG_SIZE_LE (1 << 1) +#define V4L2_SUBDEV_SEL_FLAG_KEEP_CONFIG (1 << 2) + +/* active cropping area */ +#define V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL 0x0000 +/* cropping bounds */ +#define V4L2_SUBDEV_SEL_TGT_CROP_BOUNDS 0x0002 +/* current composing area */ +#define V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL 0x0100 +/* composing bounds */ +#define V4L2_SUBDEV_SEL_TGT_COMPOSE_BOUNDS 0x0102 + + +/** + * struct v4l2_subdev_selection - selection info + * + * @which: either V4L2_SUBDEV_FORMAT_ACTIVE or V4L2_SUBDEV_FORMAT_TRY + * @pad: pad number, as reported by the media API + * @target: selection target, used to choose one of possible rectangles + * @flags: constraint flags + * @r: coordinates of the selection window + * @reserved: for future use, set to zero for now + * + * Hardware may use multiple helper windows to process a video stream. + * The structure is used to exchange this selection areas between + * an application and a driver. + */ +struct v4l2_subdev_selection { + __u32 which; + __u32 pad; + __u32 target; + __u32 flags; + struct v4l2_rect r; + __u32 reserved[8]; +}; + #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_G_FRAME_INTERVAL \ @@ -137,5 +174,9 @@ struct v4l2_subdev_frame_interval_enum { _IOWR('V', 75, struct v4l2_subdev_frame_interval_enum) #define VIDIOC_SUBDEV_G_CROP _IOWR('V', 59, struct v4l2_subdev_crop) #define VIDIOC_SUBDEV_S_CROP _IOWR('V', 60, struct v4l2_subdev_crop) +#define VIDIOC_SUBDEV_G_SELECTION \ + _IOWR('V', 61, struct v4l2_subdev_selection) +#define VIDIOC_SUBDEV_S_SELECTION \ + _IOWR('V', 62, struct v4l2_subdev_selection) #endif |