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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
 *
 * 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 It is superseded by the selection API.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)