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v4l2-subdev.h
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * V4L2 subdev userspace API * * Copyright (C) 2010 Nokia Corporation * * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com> * Sakari Ailus <sakari.ailus@iki.fi> */ #ifndef __LINUX_V4L2_SUBDEV_H #define __LINUX_V4L2_SUBDEV_H #include <linux/const.h> #include <linux/ioctl.h> #include <linux/types.h> #include <linux/v4l2-common.h> #include <linux/v4l2-mediabus.h> /** * 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 */ struct v4l2_subdev_crop { __u32 which; __u32 pad; struct v4l2_rect rect; __u32 stream; __u32 reserved[7]; }; #define V4L2_SUBDEV_MBUS_CODE_CSC_COLORSPACE 0x00000001 #define V4L2_SUBDEV_MBUS_CODE_CSC_XFER_FUNC 0x00000002 #define V4L2_SUBDEV_MBUS_CODE_CSC_YCBCR_ENC 0x00000004 #define V4L2_SUBDEV_MBUS_CODE_CSC_HSV_ENC V4L2_SUBDEV_MBUS_CODE_CSC_YCBCR_ENC #define V4L2_SUBDEV_MBUS_CODE_CSC_QUANTIZATION 0x00000008 /** * 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) * @num_routes: the total number of routes in the routes array * @routes: pointer to the routes array * @reserved: drivers and applications must zero this array */ struct v4l2_subdev_routing { __u32 which; __u32 num_routes; __u64 routes; __u32 reserved[6]; }; /* * 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 #define VIDIOC_SUBDEV_QUERYCAP _IOR('V', 0, struct v4l2_subdev_capability) #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 _IOWR('V', 21, struct v4l2_subdev_frame_interval) #define VIDIOC_SUBDEV_S_FRAME_INTERVAL _IOWR('V', 22, struct v4l2_subdev_frame_interval) #define VIDIOC_SUBDEV_ENUM_MBUS_CODE _IOWR('V', 2, struct v4l2_subdev_mbus_code_enum) #define VIDIOC_SUBDEV_ENUM_FRAME_SIZE _IOWR('V', 74, struct v4l2_subdev_frame_size_enum) #define VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL _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) #define VIDIOC_SUBDEV_G_ROUTING _IOWR('V', 38, struct v4l2_subdev_routing) #define VIDIOC_SUBDEV_S_ROUTING _IOWR('V', 39, struct v4l2_subdev_routing) #define VIDIOC_SUBDEV_G_CLIENT_CAP _IOR('V', 101, struct v4l2_subdev_client_capability) #define VIDIOC_SUBDEV_S_CLIENT_CAP _IOWR('V', 102, struct v4l2_subdev_client_capability) /* The following ioctls are identical to the ioctls in videodev2.h */ #define VIDIOC_SUBDEV_G_STD _IOR('V', 23, v4l2_std_id) #define VIDIOC_SUBDEV_S_STD _IOW('V', 24, v4l2_std_id) #define VIDIOC_SUBDEV_ENUMSTD _IOWR('V', 25, struct v4l2_standard) #define VIDIOC_SUBDEV_G_EDID _IOWR('V', 40, struct v4l2_edid) #define VIDIOC_SUBDEV_S_EDID _IOWR('V', 41, struct v4l2_edid) #define VIDIOC_SUBDEV_QUERYSTD _IOR('V', 63, v4l2_std_id) #define VIDIOC_SUBDEV_S_DV_TIMINGS _IOWR('V', 87, struct v4l2_dv_timings) #define VIDIOC_SUBDEV_G_DV_TIMINGS _IOWR('V', 88, struct v4l2_dv_timings) #define VIDIOC_SUBDEV_ENUM_DV_TIMINGS _IOWR('V', 98, struct v4l2_enum_dv_timings) #define VIDIOC_SUBDEV_QUERY_DV_TIMINGS _IOR('V', 99, struct v4l2_dv_timings) #define VIDIOC_SUBDEV_DV_TIMINGS_CAP _IOWR('V', 100, struct v4l2_dv_timings_cap) #endif