/** * enum v4l2_subdev_format_whence - Media bus format type * @V4L2_SUBDEV_FORMAT_TRY: try format, for negotiation only * @V4L2_SUBDEV_FORMAT_ACTIVE: active format, applied to the device
*/ enum v4l2_subdev_format_whence {
V4L2_SUBDEV_FORMAT_TRY = 0,
V4L2_SUBDEV_FORMAT_ACTIVE = 1,
};
/** * struct v4l2_subdev_format - Pad-level media bus format * @which: format type (from enum v4l2_subdev_format_whence) * @pad: pad number, as reported by the media API * @format: media bus format (format code and frame size) * @stream: stream number, defined in subdev routing * @reserved: drivers and applications must zero this array
*/ struct v4l2_subdev_format {
__u32 which;
__u32 pad; struct v4l2_mbus_framefmt format;
__u32 stream;
__u32 reserved[7];
};
/** * struct v4l2_subdev_crop - Pad-level crop settings * @which: format type (from enum v4l2_subdev_format_whence) * @pad: pad number, as reported by the media API * @rect: pad crop rectangle boundaries * @stream: stream number, defined in subdev routing * @reserved: drivers and applications must zero this array * * The subdev crop API is an obsolete interface and may be removed in the * future. It is superseded by the selection API. No new extensions to this * structure will be accepted.
*/ struct v4l2_subdev_crop {
__u32 which;
__u32 pad; struct v4l2_rect rect;
__u32 stream;
__u32 reserved[7];
};
/** * struct v4l2_subdev_mbus_code_enum - Media bus format enumeration * @pad: pad number, as reported by the media API * @index: format index during enumeration * @code: format code (MEDIA_BUS_FMT_ definitions) * @which: format type (from enum v4l2_subdev_format_whence) * @flags: flags set by the driver, (V4L2_SUBDEV_MBUS_CODE_*) * @stream: stream number, defined in subdev routing * @reserved: drivers and applications must zero this array
*/ struct v4l2_subdev_mbus_code_enum {
__u32 pad;
__u32 index;
__u32 code;
__u32 which;
__u32 flags;
__u32 stream;
__u32 reserved[6];
};
/** * struct v4l2_subdev_frame_size_enum - Media bus format enumeration * @index: format index during enumeration * @pad: pad number, as reported by the media API * @code: format code (MEDIA_BUS_FMT_ definitions) * @min_width: minimum frame width, in pixels * @max_width: maximum frame width, in pixels * @min_height: minimum frame height, in pixels * @max_height: maximum frame height, in pixels * @which: format type (from enum v4l2_subdev_format_whence) * @stream: stream number, defined in subdev routing * @reserved: drivers and applications must zero this array
*/ struct v4l2_subdev_frame_size_enum {
__u32 index;
__u32 pad;
__u32 code;
__u32 min_width;
__u32 max_width;
__u32 min_height;
__u32 max_height;
__u32 which;
__u32 stream;
__u32 reserved[7];
};
/** * struct v4l2_subdev_frame_interval - Pad-level frame rate * @pad: pad number, as reported by the media API * @interval: frame interval in seconds * @stream: stream number, defined in subdev routing * @which: interval type (from enum v4l2_subdev_format_whence) * @reserved: drivers and applications must zero this array
*/ struct v4l2_subdev_frame_interval {
__u32 pad; struct v4l2_fract interval;
__u32 stream;
__u32 which;
__u32 reserved[7];
};
/** * struct v4l2_subdev_frame_interval_enum - Frame interval enumeration * @pad: pad number, as reported by the media API * @index: frame interval index during enumeration * @code: format code (MEDIA_BUS_FMT_ definitions) * @width: frame width in pixels * @height: frame height in pixels * @interval: frame interval in seconds * @which: interval type (from enum v4l2_subdev_format_whence) * @stream: stream number, defined in subdev routing * @reserved: drivers and applications must zero this array
*/ struct v4l2_subdev_frame_interval_enum {
__u32 index;
__u32 pad;
__u32 code;
__u32 width;
__u32 height; struct v4l2_fract interval;
__u32 which;
__u32 stream;
__u32 reserved[7];
};
/** * 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, * defined in v4l2-common.h; V4L2_SEL_TGT_* . * @flags: constraint flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*. * @r: coordinates of the selection window * @stream: stream number, defined in subdev routing * @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 stream;
__u32 reserved[7];
};
/** * struct v4l2_subdev_capability - subdev capabilities * @version: the driver versioning number * @capabilities: the subdev capabilities, see V4L2_SUBDEV_CAP_* * @reserved: for future use, set to zero for now
*/ struct v4l2_subdev_capability {
__u32 version;
__u32 capabilities;
__u32 reserved[14];
};
/* The v4l2 sub-device video device node is registered in read-only mode. */ #define V4L2_SUBDEV_CAP_RO_SUBDEV 0x00000001
/* The v4l2 sub-device supports routing and multiplexed streams. */ #define V4L2_SUBDEV_CAP_STREAMS 0x00000002
/* * Is the route active? An active route will start when streaming is enabled * on a video node.
*/ #define V4L2_SUBDEV_ROUTE_FL_ACTIVE (1U << 0)
/** * struct v4l2_subdev_route - A route inside a subdev * * @sink_pad: the sink pad index * @sink_stream: the sink stream identifier * @source_pad: the source pad index * @source_stream: the source stream identifier * @flags: route flags V4L2_SUBDEV_ROUTE_FL_* * @reserved: drivers and applications must zero this array
*/ struct v4l2_subdev_route {
__u32 sink_pad;
__u32 sink_stream;
__u32 source_pad;
__u32 source_stream;
__u32 flags;
__u32 reserved[5];
};
/** * struct v4l2_subdev_routing - Subdev routing information * * @which: configuration type (from enum v4l2_subdev_format_whence) * @len_routes: the length of the routes array, in routes; set by the user, not * modified by the kernel * @routes: pointer to the routes array * @num_routes: the total number of routes, possibly more than fits in the * routes array * @reserved: drivers and applications must zero this array
*/ struct v4l2_subdev_routing {
__u32 which;
__u32 len_routes;
__u64 routes;
__u32 num_routes;
__u32 reserved[11];
};
/* * The client is aware of streams. Setting this flag enables the use of 'stream' * fields (referring to the stream number) with various ioctls. If this is not * set (which is the default), the 'stream' fields will be forced to 0 by the * kernel.
*/ #define V4L2_SUBDEV_CLIENT_CAP_STREAMS (1ULL << 0)
/* * The client is aware of the struct v4l2_subdev_frame_interval which field. If * this is not set (which is the default), the which field is forced to * V4L2_SUBDEV_FORMAT_ACTIVE by the kernel.
*/ #define V4L2_SUBDEV_CLIENT_CAP_INTERVAL_USES_WHICH (1ULL << 1)
/** * struct v4l2_subdev_client_capability - Capabilities of the client accessing * the subdev * * @capabilities: A bitmask of V4L2_SUBDEV_CLIENT_CAP_* flags.
*/ struct v4l2_subdev_client_capability {
__u64 capabilities;
};
/* Backwards compatibility define --- to be removed */ #define v4l2_subdev_edid v4l2_edid
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