text: /* 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>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  
  #ifndef __LINUX_V4L2_SUBDEV_H
  #define __LINUX_V4L2_SUBDEV_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)
   */
  struct v4l2_subdev_format {
  	__u32 which;
  	__u32 pad;
  	struct v4l2_mbus_framefmt format;
  	__u32 reserved[8];
  };
  
  /**
   * 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
   */
  struct v4l2_subdev_crop {
  	__u32 which;
  	__u32 pad;
  	struct v4l2_rect rect;
  	__u32 reserved[8];
  };
  
  /**
   * 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)
   */
  struct v4l2_subdev_mbus_code_enum {
  	__u32 pad;
  	__u32 index;
  	__u32 code;
  	__u32 which;
  	__u32 reserved[8];
  };
  
  /**
   * struct v4l2_subdev_frame_size_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)
   */
  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 reserved[8];
  };
  
  /**
   * struct v4l2_subdev_frame_interval - Pad-level frame rate
   * @pad: pad number, as reported by the media API
   * @interval: frame interval in seconds
   */
  struct v4l2_subdev_frame_interval {
  	__u32 pad;
  	struct v4l2_fract interval;
  	__u32 reserved[9];
  };
  
  /**
   * 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: format type (from enum v4l2_subdev_format_whence)
   */
  struct v4l2_subdev_frame_interval_enum {
  	__u32 index;
  	__u32 pad;
  	__u32 code;
  	__u32 width;
  	__u32 height;
  	struct v4l2_fract interval;
  	__u32 which;
  	__u32 reserved[8];
  };
  
  /**
   * 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
   * @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 reserved[8];
  };
  
  
  /**
   * struct v4l2_subdev_route - A signal route inside a subdev
   * @sink: the sink pad
   * @source: the source pad
   */
  struct v4l2_subdev_route {
  	__u32 sink;
  	__u32 source;
  };
  
  /**
   * struct v4l2_subdev_routing - Routing information
   * @num_routes: the total number of routes in the routes array
   * @routes: the routes array
   */
  struct v4l2_subdev_routing {
  	__u32 num_routes;
  	struct v4l2_subdev_route *routes;
  };
  
  /* Backwards compatibility define --- to be removed */
  #define v4l2_subdev_edid v4l2_edid
  
  #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)
  /* 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)
  #define VIDIOC_SUBDEV_G_ROUTING			_IOWR('V', 38, struct v4l2_subdev_routing)
  #define VIDIOC_SUBDEV_S_ROUTING			_IOWR('V', 39, struct v4l2_subdev_routing)
  
  #endif
  