1/* 2 * V4L2 subdev userspace API 3 * 4 * Copyright (C) 2010 Nokia Corporation 5 * 6 * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com> 7 * Sakari Ailus <sakari.ailus@iki.fi> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as 11 * published by the Free Software Foundation. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 */ 22 23#ifndef __LINUX_V4L2_SUBDEV_H 24#define __LINUX_V4L2_SUBDEV_H 25 26#include <linux/ioctl.h> 27#include <linux/types.h> 28#include <linux/v4l2-common.h> 29#include <linux/v4l2-mediabus.h> 30 31/** 32 * enum v4l2_subdev_format_whence - Media bus format type 33 * @V4L2_SUBDEV_FORMAT_TRY: try format, for negotiation only 34 * @V4L2_SUBDEV_FORMAT_ACTIVE: active format, applied to the device 35 */ 36enum v4l2_subdev_format_whence { 37 V4L2_SUBDEV_FORMAT_TRY = 0, 38 V4L2_SUBDEV_FORMAT_ACTIVE = 1, 39}; 40 41/** 42 * struct v4l2_subdev_format - Pad-level media bus format 43 * @which: format type (from enum v4l2_subdev_format_whence) 44 * @pad: pad number, as reported by the media API 45 * @format: media bus format (format code and frame size) 46 */ 47struct v4l2_subdev_format { 48 __u32 which; 49 __u32 pad; 50 struct v4l2_mbus_framefmt format; 51 __u32 reserved[8]; 52}; 53 54/** 55 * struct v4l2_subdev_crop - Pad-level crop settings 56 * @which: format type (from enum v4l2_subdev_format_whence) 57 * @pad: pad number, as reported by the media API 58 * @rect: pad crop rectangle boundaries 59 */ 60struct v4l2_subdev_crop { 61 __u32 which; 62 __u32 pad; 63 struct v4l2_rect rect; 64 __u32 reserved[8]; 65}; 66 67/** 68 * struct v4l2_subdev_mbus_code_enum - Media bus format enumeration 69 * @pad: pad number, as reported by the media API 70 * @index: format index during enumeration 71 * @code: format code (from enum v4l2_mbus_pixelcode) 72 */ 73struct v4l2_subdev_mbus_code_enum { 74 __u32 pad; 75 __u32 index; 76 __u32 code; 77 __u32 reserved[9]; 78}; 79 80/** 81 * struct v4l2_subdev_frame_size_enum - Media bus format enumeration 82 * @pad: pad number, as reported by the media API 83 * @index: format index during enumeration 84 * @code: format code (from enum v4l2_mbus_pixelcode) 85 */ 86struct v4l2_subdev_frame_size_enum { 87 __u32 index; 88 __u32 pad; 89 __u32 code; 90 __u32 min_width; 91 __u32 max_width; 92 __u32 min_height; 93 __u32 max_height; 94 __u32 reserved[9]; 95}; 96 97/** 98 * struct v4l2_subdev_frame_interval - Pad-level frame rate 99 * @pad: pad number, as reported by the media API 100 * @interval: frame interval in seconds 101 */ 102struct v4l2_subdev_frame_interval { 103 __u32 pad; 104 struct v4l2_fract interval; 105 __u32 reserved[9]; 106}; 107 108/** 109 * struct v4l2_subdev_frame_interval_enum - Frame interval enumeration 110 * @pad: pad number, as reported by the media API 111 * @index: frame interval index during enumeration 112 * @code: format code (from enum v4l2_mbus_pixelcode) 113 * @width: frame width in pixels 114 * @height: frame height in pixels 115 * @interval: frame interval in seconds 116 */ 117struct v4l2_subdev_frame_interval_enum { 118 __u32 index; 119 __u32 pad; 120 __u32 code; 121 __u32 width; 122 __u32 height; 123 struct v4l2_fract interval; 124 __u32 reserved[9]; 125}; 126 127/** 128 * struct v4l2_subdev_selection - selection info 129 * 130 * @which: either V4L2_SUBDEV_FORMAT_ACTIVE or V4L2_SUBDEV_FORMAT_TRY 131 * @pad: pad number, as reported by the media API 132 * @target: Selection target, used to choose one of possible rectangles, 133 * defined in v4l2-common.h; V4L2_SEL_TGT_* . 134 * @flags: constraint flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*. 135 * @r: coordinates of the selection window 136 * @reserved: for future use, set to zero for now 137 * 138 * Hardware may use multiple helper windows to process a video stream. 139 * The structure is used to exchange this selection areas between 140 * an application and a driver. 141 */ 142struct v4l2_subdev_selection { 143 __u32 which; 144 __u32 pad; 145 __u32 target; 146 __u32 flags; 147 struct v4l2_rect r; 148 __u32 reserved[8]; 149}; 150 151struct v4l2_subdev_edid { 152 __u32 pad; 153 __u32 start_block; 154 __u32 blocks; 155 __u32 reserved[5]; 156 __u8 __user *edid; 157}; 158 159#define VIDIOC_SUBDEV_G_FMT _IOWR('V', 4, struct v4l2_subdev_format) 160#define VIDIOC_SUBDEV_S_FMT _IOWR('V', 5, struct v4l2_subdev_format) 161#define VIDIOC_SUBDEV_G_FRAME_INTERVAL \ 162 _IOWR('V', 21, struct v4l2_subdev_frame_interval) 163#define VIDIOC_SUBDEV_S_FRAME_INTERVAL \ 164 _IOWR('V', 22, struct v4l2_subdev_frame_interval) 165#define VIDIOC_SUBDEV_ENUM_MBUS_CODE \ 166 _IOWR('V', 2, struct v4l2_subdev_mbus_code_enum) 167#define VIDIOC_SUBDEV_ENUM_FRAME_SIZE \ 168 _IOWR('V', 74, struct v4l2_subdev_frame_size_enum) 169#define VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL \ 170 _IOWR('V', 75, struct v4l2_subdev_frame_interval_enum) 171#define VIDIOC_SUBDEV_G_CROP _IOWR('V', 59, struct v4l2_subdev_crop) 172#define VIDIOC_SUBDEV_S_CROP _IOWR('V', 60, struct v4l2_subdev_crop) 173#define VIDIOC_SUBDEV_G_SELECTION \ 174 _IOWR('V', 61, struct v4l2_subdev_selection) 175#define VIDIOC_SUBDEV_S_SELECTION \ 176 _IOWR('V', 62, struct v4l2_subdev_selection) 177#define VIDIOC_SUBDEV_G_EDID _IOWR('V', 40, struct v4l2_subdev_edid) 178#define VIDIOC_SUBDEV_S_EDID _IOWR('V', 41, struct v4l2_subdev_edid) 179 180#endif 181