include/uapi/linux/v4l2-subdev.h

   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  */
  36 enum 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  */
  47 struct 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  */
  60 struct 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 (MEDIA_BUS_FMT_ definitions)
  72  * @which: format type (from enum v4l2_subdev_format_whence)
  73  */
  74 struct v4l2_subdev_mbus_code_enum {
  75         __u32 pad;
  76         __u32 index;
  77         __u32 code;
  78         __u32 which;
  79         __u32 reserved[8];
  80 };
  81
  82 /**
  83  * struct v4l2_subdev_frame_size_enum - Media bus format enumeration
  84  * @pad: pad number, as reported by the media API
  85  * @index: format index during enumeration
  86  * @code: format code (MEDIA_BUS_FMT_ definitions)
  87  * @which: format type (from enum v4l2_subdev_format_whence)
  88  */
  89 struct v4l2_subdev_frame_size_enum {
  90         __u32 index;
  91         __u32 pad;
  92         __u32 code;
  93         __u32 min_width;
  94         __u32 max_width;
  95         __u32 min_height;
  96         __u32 max_height;
  97         __u32 which;
  98         __u32 reserved[8];
  99 };
 100
 101 /**
 102  * struct v4l2_subdev_frame_interval - Pad-level frame rate
 103  * @pad: pad number, as reported by the media API
 104  * @interval: frame interval in seconds
 105  */
 106 struct v4l2_subdev_frame_interval {
 107         __u32 pad;
 108         struct v4l2_fract interval;
 109         __u32 reserved[9];
 110 };
 111
 112 /**
 113  * struct v4l2_subdev_frame_interval_enum - Frame interval enumeration
 114  * @pad: pad number, as reported by the media API
 115  * @index: frame interval index during enumeration
 116  * @code: format code (MEDIA_BUS_FMT_ definitions)
 117  * @width: frame width in pixels
 118  * @height: frame height in pixels
 119  * @interval: frame interval in seconds
 120  * @which: format type (from enum v4l2_subdev_format_whence)
 121  */
 122 struct v4l2_subdev_frame_interval_enum {
 123         __u32 index;
 124         __u32 pad;
 125         __u32 code;
 126         __u32 width;
 127         __u32 height;
 128         struct v4l2_fract interval;
 129         __u32 which;
 130         __u32 reserved[8];
 131 };
 132
 133 /**
 134  * struct v4l2_subdev_selection - selection info
 135  *
 136  * @which: either V4L2_SUBDEV_FORMAT_ACTIVE or V4L2_SUBDEV_FORMAT_TRY
 137  * @pad: pad number, as reported by the media API
 138  * @target: Selection target, used to choose one of possible rectangles,
 139  *          defined in v4l2-common.h; V4L2_SEL_TGT_* .
 140  * @flags: constraint flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*.
 141  * @r: coordinates of the selection window
 142  * @reserved: for future use, set to zero for now
 143  *
 144  * Hardware may use multiple helper windows to process a video stream.
 145  * The structure is used to exchange this selection areas between
 146  * an application and a driver.
 147  */
 148 struct v4l2_subdev_selection {
 149         __u32 which;
 150         __u32 pad;
 151         __u32 target;
 152         __u32 flags;
 153         struct v4l2_rect r;
 154         __u32 reserved[8];
 155 };
 156
 157 /* Backwards compatibility define --- to be removed */
 158 #define v4l2_subdev_edid v4l2_edid
 159
 160 #define VIDIOC_SUBDEV_G_FMT                     _IOWR('V',  4, struct v4l2_subdev_format)
 161 #define VIDIOC_SUBDEV_S_FMT                     _IOWR('V',  5, struct v4l2_subdev_format)
 162 #define VIDIOC_SUBDEV_G_FRAME_INTERVAL          _IOWR('V', 21, struct v4l2_subdev_frame_interval)
 163 #define VIDIOC_SUBDEV_S_FRAME_INTERVAL          _IOWR('V', 22, struct v4l2_subdev_frame_interval)
 164 #define VIDIOC_SUBDEV_ENUM_MBUS_CODE            _IOWR('V',  2, struct v4l2_subdev_mbus_code_enum)
 165 #define VIDIOC_SUBDEV_ENUM_FRAME_SIZE           _IOWR('V', 74, struct v4l2_subdev_frame_size_enum)
 166 #define VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL       _IOWR('V', 75, struct v4l2_subdev_frame_interval_enum)
 167 #define VIDIOC_SUBDEV_G_CROP                    _IOWR('V', 59, struct v4l2_subdev_crop)
 168 #define VIDIOC_SUBDEV_S_CROP                    _IOWR('V', 60, struct v4l2_subdev_crop)
 169 #define VIDIOC_SUBDEV_G_SELECTION               _IOWR('V', 61, struct v4l2_subdev_selection)
 170 #define VIDIOC_SUBDEV_S_SELECTION               _IOWR('V', 62, struct v4l2_subdev_selection)
 171 /* The following ioctls are identical to the ioctls in videodev2.h */
 172 #define VIDIOC_SUBDEV_G_EDID                    _IOWR('V', 40, struct v4l2_edid)
 173 #define VIDIOC_SUBDEV_S_EDID                    _IOWR('V', 41, struct v4l2_edid)
 174 #define VIDIOC_SUBDEV_S_DV_TIMINGS              _IOWR('V', 87, struct v4l2_dv_timings)
 175 #define VIDIOC_SUBDEV_G_DV_TIMINGS              _IOWR('V', 88, struct v4l2_dv_timings)
 176 #define VIDIOC_SUBDEV_ENUM_DV_TIMINGS           _IOWR('V', 98, struct v4l2_enum_dv_timings)
 177 #define VIDIOC_SUBDEV_QUERY_DV_TIMINGS          _IOR('V', 99, struct v4l2_dv_timings)
 178 #define VIDIOC_SUBDEV_DV_TIMINGS_CAP            _IOWR('V', 100, struct v4l2_dv_timings_cap)
 179
 180 #endif