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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305/* 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 * * 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];};
#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) * @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
#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