288 lines
9.4 KiB
C
288 lines
9.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* V4L2 subdev userspace API
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*
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* Copyright (C) 2010 Nokia Corporation
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*
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* Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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* Sakari Ailus <sakari.ailus@iki.fi>
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*/
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#ifndef __LINUX_V4L2_SUBDEV_H
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#define __LINUX_V4L2_SUBDEV_H
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#include <linux/const.h>
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#include <linux/ioctl.h>
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#include <linux/types.h>
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#include <linux/v4l2-common.h>
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#include <linux/v4l2-mediabus.h>
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/**
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* enum v4l2_subdev_format_whence - Media bus format type
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* @V4L2_SUBDEV_FORMAT_TRY: try format, for negotiation only
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* @V4L2_SUBDEV_FORMAT_ACTIVE: active format, applied to the device
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*/
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enum v4l2_subdev_format_whence {
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V4L2_SUBDEV_FORMAT_TRY = 0,
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V4L2_SUBDEV_FORMAT_ACTIVE = 1,
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};
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/**
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* struct v4l2_subdev_format - Pad-level media bus format
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* @which: format type (from enum v4l2_subdev_format_whence)
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* @pad: pad number, as reported by the media API
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* @format: media bus format (format code and frame size)
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* @stream: stream number, defined in subdev routing
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* @reserved: drivers and applications must zero this array
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*/
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struct v4l2_subdev_format {
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__u32 which;
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__u32 pad;
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struct v4l2_mbus_framefmt format;
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__u32 stream;
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__u32 reserved[7];
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};
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/**
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* struct v4l2_subdev_crop - Pad-level crop settings
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* @which: format type (from enum v4l2_subdev_format_whence)
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* @pad: pad number, as reported by the media API
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* @rect: pad crop rectangle boundaries
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* @stream: stream number, defined in subdev routing
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* @reserved: drivers and applications must zero this array
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*/
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struct v4l2_subdev_crop {
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__u32 which;
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__u32 pad;
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struct v4l2_rect rect;
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__u32 stream;
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__u32 reserved[7];
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};
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#define V4L2_SUBDEV_MBUS_CODE_CSC_COLORSPACE 0x00000001
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#define V4L2_SUBDEV_MBUS_CODE_CSC_XFER_FUNC 0x00000002
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#define V4L2_SUBDEV_MBUS_CODE_CSC_YCBCR_ENC 0x00000004
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#define V4L2_SUBDEV_MBUS_CODE_CSC_HSV_ENC V4L2_SUBDEV_MBUS_CODE_CSC_YCBCR_ENC
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#define V4L2_SUBDEV_MBUS_CODE_CSC_QUANTIZATION 0x00000008
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/**
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* struct v4l2_subdev_mbus_code_enum - Media bus format enumeration
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* @pad: pad number, as reported by the media API
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* @index: format index during enumeration
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* @code: format code (MEDIA_BUS_FMT_ definitions)
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* @which: format type (from enum v4l2_subdev_format_whence)
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* @flags: flags set by the driver, (V4L2_SUBDEV_MBUS_CODE_*)
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* @stream: stream number, defined in subdev routing
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* @reserved: drivers and applications must zero this array
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*/
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struct v4l2_subdev_mbus_code_enum {
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__u32 pad;
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__u32 index;
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__u32 code;
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__u32 which;
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__u32 flags;
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__u32 stream;
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__u32 reserved[6];
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};
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/**
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* struct v4l2_subdev_frame_size_enum - Media bus format enumeration
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* @index: format index during enumeration
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* @pad: pad number, as reported by the media API
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* @code: format code (MEDIA_BUS_FMT_ definitions)
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* @min_width: minimum frame width, in pixels
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* @max_width: maximum frame width, in pixels
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* @min_height: minimum frame height, in pixels
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* @max_height: maximum frame height, in pixels
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* @which: format type (from enum v4l2_subdev_format_whence)
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* @stream: stream number, defined in subdev routing
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* @reserved: drivers and applications must zero this array
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*/
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struct v4l2_subdev_frame_size_enum {
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__u32 index;
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__u32 pad;
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__u32 code;
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__u32 min_width;
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__u32 max_width;
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__u32 min_height;
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__u32 max_height;
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__u32 which;
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__u32 stream;
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__u32 reserved[7];
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};
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/**
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* struct v4l2_subdev_frame_interval - Pad-level frame rate
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* @pad: pad number, as reported by the media API
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* @interval: frame interval in seconds
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* @stream: stream number, defined in subdev routing
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* @reserved: drivers and applications must zero this array
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*/
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struct v4l2_subdev_frame_interval {
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__u32 pad;
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struct v4l2_fract interval;
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__u32 stream;
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__u32 reserved[8];
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};
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/**
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* struct v4l2_subdev_frame_interval_enum - Frame interval enumeration
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* @pad: pad number, as reported by the media API
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* @index: frame interval index during enumeration
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* @code: format code (MEDIA_BUS_FMT_ definitions)
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* @width: frame width in pixels
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* @height: frame height in pixels
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* @interval: frame interval in seconds
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* @which: format type (from enum v4l2_subdev_format_whence)
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* @stream: stream number, defined in subdev routing
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* @reserved: drivers and applications must zero this array
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*/
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struct v4l2_subdev_frame_interval_enum {
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__u32 index;
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__u32 pad;
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__u32 code;
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__u32 width;
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__u32 height;
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struct v4l2_fract interval;
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__u32 which;
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__u32 stream;
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__u32 reserved[7];
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};
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/**
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* struct v4l2_subdev_selection - selection info
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*
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* @which: either V4L2_SUBDEV_FORMAT_ACTIVE or V4L2_SUBDEV_FORMAT_TRY
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* @pad: pad number, as reported by the media API
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* @target: Selection target, used to choose one of possible rectangles,
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* defined in v4l2-common.h; V4L2_SEL_TGT_* .
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* @flags: constraint flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*.
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* @r: coordinates of the selection window
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* @stream: stream number, defined in subdev routing
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* @reserved: for future use, set to zero for now
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*
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* Hardware may use multiple helper windows to process a video stream.
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* The structure is used to exchange this selection areas between
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* an application and a driver.
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*/
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struct v4l2_subdev_selection {
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__u32 which;
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__u32 pad;
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__u32 target;
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__u32 flags;
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struct v4l2_rect r;
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__u32 stream;
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__u32 reserved[7];
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};
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/**
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* struct v4l2_subdev_capability - subdev capabilities
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* @version: the driver versioning number
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* @capabilities: the subdev capabilities, see V4L2_SUBDEV_CAP_*
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* @reserved: for future use, set to zero for now
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*/
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struct v4l2_subdev_capability {
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__u32 version;
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__u32 capabilities;
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__u32 reserved[14];
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};
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/* The v4l2 sub-device video device node is registered in read-only mode. */
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#define V4L2_SUBDEV_CAP_RO_SUBDEV 0x00000001
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/* The v4l2 sub-device supports routing and multiplexed streams. */
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#define V4L2_SUBDEV_CAP_STREAMS 0x00000002
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/*
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* Is the route active? An active route will start when streaming is enabled
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* on a video node.
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*/
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#define V4L2_SUBDEV_ROUTE_FL_ACTIVE (1U << 0)
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/**
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* struct v4l2_subdev_route - A route inside a subdev
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*
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* @sink_pad: the sink pad index
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* @sink_stream: the sink stream identifier
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* @source_pad: the source pad index
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* @source_stream: the source stream identifier
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* @flags: route flags V4L2_SUBDEV_ROUTE_FL_*
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* @reserved: drivers and applications must zero this array
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*/
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struct v4l2_subdev_route {
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__u32 sink_pad;
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__u32 sink_stream;
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__u32 source_pad;
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__u32 source_stream;
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__u32 flags;
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__u32 reserved[5];
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};
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/**
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* struct v4l2_subdev_routing - Subdev routing information
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*
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* @which: configuration type (from enum v4l2_subdev_format_whence)
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* @num_routes: the total number of routes in the routes array
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* @routes: pointer to the routes array
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* @reserved: drivers and applications must zero this array
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*/
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struct v4l2_subdev_routing {
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__u32 which;
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__u32 num_routes;
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__u64 routes;
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__u32 reserved[6];
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};
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/*
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* The client is aware of streams. Setting this flag enables the use of 'stream'
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* fields (referring to the stream number) with various ioctls. If this is not
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* set (which is the default), the 'stream' fields will be forced to 0 by the
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* kernel.
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*/
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#define V4L2_SUBDEV_CLIENT_CAP_STREAMS (1U << 0)
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/**
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* struct v4l2_subdev_client_capability - Capabilities of the client accessing
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* the subdev
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*
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* @capabilities: A bitmask of V4L2_SUBDEV_CLIENT_CAP_* flags.
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*/
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struct v4l2_subdev_client_capability {
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__u64 capabilities;
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};
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/* Backwards compatibility define --- to be removed */
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#define v4l2_subdev_edid v4l2_edid
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#define VIDIOC_SUBDEV_QUERYCAP _IOR('V', 0, struct v4l2_subdev_capability)
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#define VIDIOC_SUBDEV_G_FMT _IOWR('V', 4, struct v4l2_subdev_format)
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#define VIDIOC_SUBDEV_S_FMT _IOWR('V', 5, struct v4l2_subdev_format)
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#define VIDIOC_SUBDEV_G_FRAME_INTERVAL _IOWR('V', 21, struct v4l2_subdev_frame_interval)
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#define VIDIOC_SUBDEV_S_FRAME_INTERVAL _IOWR('V', 22, struct v4l2_subdev_frame_interval)
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#define VIDIOC_SUBDEV_ENUM_MBUS_CODE _IOWR('V', 2, struct v4l2_subdev_mbus_code_enum)
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#define VIDIOC_SUBDEV_ENUM_FRAME_SIZE _IOWR('V', 74, struct v4l2_subdev_frame_size_enum)
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#define VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL _IOWR('V', 75, struct v4l2_subdev_frame_interval_enum)
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#define VIDIOC_SUBDEV_G_CROP _IOWR('V', 59, struct v4l2_subdev_crop)
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#define VIDIOC_SUBDEV_S_CROP _IOWR('V', 60, struct v4l2_subdev_crop)
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#define VIDIOC_SUBDEV_G_SELECTION _IOWR('V', 61, struct v4l2_subdev_selection)
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#define VIDIOC_SUBDEV_S_SELECTION _IOWR('V', 62, struct v4l2_subdev_selection)
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#define VIDIOC_SUBDEV_G_ROUTING _IOWR('V', 38, struct v4l2_subdev_routing)
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#define VIDIOC_SUBDEV_S_ROUTING _IOWR('V', 39, struct v4l2_subdev_routing)
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#define VIDIOC_SUBDEV_G_CLIENT_CAP _IOR('V', 101, struct v4l2_subdev_client_capability)
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#define VIDIOC_SUBDEV_S_CLIENT_CAP _IOWR('V', 102, struct v4l2_subdev_client_capability)
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/* The following ioctls are identical to the ioctls in videodev2.h */
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#define VIDIOC_SUBDEV_G_STD _IOR('V', 23, v4l2_std_id)
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#define VIDIOC_SUBDEV_S_STD _IOW('V', 24, v4l2_std_id)
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#define VIDIOC_SUBDEV_ENUMSTD _IOWR('V', 25, struct v4l2_standard)
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#define VIDIOC_SUBDEV_G_EDID _IOWR('V', 40, struct v4l2_edid)
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#define VIDIOC_SUBDEV_S_EDID _IOWR('V', 41, struct v4l2_edid)
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#define VIDIOC_SUBDEV_QUERYSTD _IOR('V', 63, v4l2_std_id)
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#define VIDIOC_SUBDEV_S_DV_TIMINGS _IOWR('V', 87, struct v4l2_dv_timings)
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#define VIDIOC_SUBDEV_G_DV_TIMINGS _IOWR('V', 88, struct v4l2_dv_timings)
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#define VIDIOC_SUBDEV_ENUM_DV_TIMINGS _IOWR('V', 98, struct v4l2_enum_dv_timings)
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#define VIDIOC_SUBDEV_QUERY_DV_TIMINGS _IOR('V', 99, struct v4l2_dv_timings)
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#define VIDIOC_SUBDEV_DV_TIMINGS_CAP _IOWR('V', 100, struct v4l2_dv_timings_cap)
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#endif
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