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      1 /*
      2  *  Video for Linux Two header file
      3  *
      4  *  Copyright (C) 1999-2012 the contributors
      5  *
      6  *  This program is free software; you can redistribute it and/or modify
      7  *  it under the terms of the GNU General Public License as published by
      8  *  the Free Software Foundation; either version 2 of the License, or
      9  *  (at your option) any later version.
     10  *
     11  *  This program is distributed in the hope that it will be useful,
     12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14  *  GNU General Public License for more details.
     15  *
     16  *  Alternatively you can redistribute this file under the terms of the
     17  *  BSD license as stated below:
     18  *
     19  *  Redistribution and use in source and binary forms, with or without
     20  *  modification, are permitted provided that the following conditions
     21  *  are met:
     22  *  1. Redistributions of source code must retain the above copyright
     23  *     notice, this list of conditions and the following disclaimer.
     24  *  2. Redistributions in binary form must reproduce the above copyright
     25  *     notice, this list of conditions and the following disclaimer in
     26  *     the documentation and/or other materials provided with the
     27  *     distribution.
     28  *  3. The names of its contributors may not be used to endorse or promote
     29  *     products derived from this software without specific prior written
     30  *     permission.
     31  *
     32  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     33  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     34  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     35  *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     36  *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     37  *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
     38  *  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     39  *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
     40  *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     41  *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     42  *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     43  *
     44  *	Header file for v4l or V4L2 drivers and applications
     45  * with public API.
     46  * All kernel-specific stuff were moved to media/v4l2-dev.h, so
     47  * no #if __KERNEL tests are allowed here
     48  *
     49  *	See http://linuxtv.org for more info
     50  *
     51  *	Author: Bill Dirks <bill (at) thedirks.org>
     52  *		Justin Schoeman
     53  *              Hans Verkuil <hverkuil (at) xs4all.nl>
     54  *		et al.
     55  */
     56 #ifndef _UAPI__LINUX_VIDEODEV2_H
     57 #define _UAPI__LINUX_VIDEODEV2_H
     58 
     59 #ifndef __KERNEL__
     60 #include <sys/time.h>
     61 #endif
     62 #include <linux/compiler.h>
     63 #include <linux/ioctl.h>
     64 #include <linux/types.h>
     65 #include <linux/v4l2-common.h>
     66 #include <linux/v4l2-controls.h>
     67 
     68 /*
     69  * Common stuff for both V4L1 and V4L2
     70  * Moved from videodev.h
     71  */
     72 #define VIDEO_MAX_FRAME               32
     73 #define VIDEO_MAX_PLANES               8
     74 
     75 /*
     76  *	M I S C E L L A N E O U S
     77  */
     78 
     79 /*  Four-character-code (FOURCC) */
     80 #define v4l2_fourcc(a, b, c, d)\
     81 	((__u32)(a) | ((__u32)(b) << 8) | ((__u32)(c) << 16) | ((__u32)(d) << 24))
     82 
     83 /*
     84  *	E N U M S
     85  */
     86 enum v4l2_field {
     87 	V4L2_FIELD_ANY           = 0, /* driver can choose from none,
     88 					 top, bottom, interlaced
     89 					 depending on whatever it thinks
     90 					 is approximate ... */
     91 	V4L2_FIELD_NONE          = 1, /* this device has no fields ... */
     92 	V4L2_FIELD_TOP           = 2, /* top field only */
     93 	V4L2_FIELD_BOTTOM        = 3, /* bottom field only */
     94 	V4L2_FIELD_INTERLACED    = 4, /* both fields interlaced */
     95 	V4L2_FIELD_SEQ_TB        = 5, /* both fields sequential into one
     96 					 buffer, top-bottom order */
     97 	V4L2_FIELD_SEQ_BT        = 6, /* same as above + bottom-top order */
     98 	V4L2_FIELD_ALTERNATE     = 7, /* both fields alternating into
     99 					 separate buffers */
    100 	V4L2_FIELD_INTERLACED_TB = 8, /* both fields interlaced, top field
    101 					 first and the top field is
    102 					 transmitted first */
    103 	V4L2_FIELD_INTERLACED_BT = 9, /* both fields interlaced, top field
    104 					 first and the bottom field is
    105 					 transmitted first */
    106 };
    107 #define V4L2_FIELD_HAS_TOP(field)	\
    108 	((field) == V4L2_FIELD_TOP 	||\
    109 	 (field) == V4L2_FIELD_INTERLACED ||\
    110 	 (field) == V4L2_FIELD_INTERLACED_TB ||\
    111 	 (field) == V4L2_FIELD_INTERLACED_BT ||\
    112 	 (field) == V4L2_FIELD_SEQ_TB	||\
    113 	 (field) == V4L2_FIELD_SEQ_BT)
    114 #define V4L2_FIELD_HAS_BOTTOM(field)	\
    115 	((field) == V4L2_FIELD_BOTTOM 	||\
    116 	 (field) == V4L2_FIELD_INTERLACED ||\
    117 	 (field) == V4L2_FIELD_INTERLACED_TB ||\
    118 	 (field) == V4L2_FIELD_INTERLACED_BT ||\
    119 	 (field) == V4L2_FIELD_SEQ_TB	||\
    120 	 (field) == V4L2_FIELD_SEQ_BT)
    121 #define V4L2_FIELD_HAS_BOTH(field)	\
    122 	((field) == V4L2_FIELD_INTERLACED ||\
    123 	 (field) == V4L2_FIELD_INTERLACED_TB ||\
    124 	 (field) == V4L2_FIELD_INTERLACED_BT ||\
    125 	 (field) == V4L2_FIELD_SEQ_TB ||\
    126 	 (field) == V4L2_FIELD_SEQ_BT)
    127 
    128 enum v4l2_buf_type {
    129 	V4L2_BUF_TYPE_VIDEO_CAPTURE        = 1,
    130 	V4L2_BUF_TYPE_VIDEO_OUTPUT         = 2,
    131 	V4L2_BUF_TYPE_VIDEO_OVERLAY        = 3,
    132 	V4L2_BUF_TYPE_VBI_CAPTURE          = 4,
    133 	V4L2_BUF_TYPE_VBI_OUTPUT           = 5,
    134 	V4L2_BUF_TYPE_SLICED_VBI_CAPTURE   = 6,
    135 	V4L2_BUF_TYPE_SLICED_VBI_OUTPUT    = 7,
    136 #if 1
    137 	/* Experimental */
    138 	V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY = 8,
    139 #endif
    140 	V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE = 9,
    141 	V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE  = 10,
    142 	/* Deprecated, do not use */
    143 	V4L2_BUF_TYPE_PRIVATE              = 0x80,
    144 };
    145 
    146 #define V4L2_TYPE_IS_MULTIPLANAR(type)			\
    147 	((type) == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE	\
    148 	 || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
    149 
    150 #define V4L2_TYPE_IS_OUTPUT(type)				\
    151 	((type) == V4L2_BUF_TYPE_VIDEO_OUTPUT			\
    152 	 || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE		\
    153 	 || (type) == V4L2_BUF_TYPE_VIDEO_OVERLAY		\
    154 	 || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY	\
    155 	 || (type) == V4L2_BUF_TYPE_VBI_OUTPUT			\
    156 	 || (type) == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT)
    157 
    158 enum v4l2_tuner_type {
    159 	V4L2_TUNER_RADIO	     = 1,
    160 	V4L2_TUNER_ANALOG_TV	     = 2,
    161 	V4L2_TUNER_DIGITAL_TV	     = 3,
    162 };
    163 
    164 enum v4l2_memory {
    165 	V4L2_MEMORY_MMAP             = 1,
    166 	V4L2_MEMORY_USERPTR          = 2,
    167 	V4L2_MEMORY_OVERLAY          = 3,
    168 	V4L2_MEMORY_DMABUF           = 4,
    169 };
    170 
    171 /* see also http://vektor.theorem.ca/graphics/ycbcr/ */
    172 enum v4l2_colorspace {
    173 	/* ITU-R 601 -- broadcast NTSC/PAL */
    174 	V4L2_COLORSPACE_SMPTE170M     = 1,
    175 
    176 	/* 1125-Line (US) HDTV */
    177 	V4L2_COLORSPACE_SMPTE240M     = 2,
    178 
    179 	/* HD and modern captures. */
    180 	V4L2_COLORSPACE_REC709        = 3,
    181 
    182 	/* broken BT878 extents (601, luma range 16-253 instead of 16-235) */
    183 	V4L2_COLORSPACE_BT878         = 4,
    184 
    185 	/* These should be useful.  Assume 601 extents. */
    186 	V4L2_COLORSPACE_470_SYSTEM_M  = 5,
    187 	V4L2_COLORSPACE_470_SYSTEM_BG = 6,
    188 
    189 	/* I know there will be cameras that send this.  So, this is
    190 	 * unspecified chromaticities and full 0-255 on each of the
    191 	 * Y'CbCr components
    192 	 */
    193 	V4L2_COLORSPACE_JPEG          = 7,
    194 
    195 	/* For RGB colourspaces, this is probably a good start. */
    196 	V4L2_COLORSPACE_SRGB          = 8,
    197 };
    198 
    199 enum v4l2_priority {
    200 	V4L2_PRIORITY_UNSET       = 0,  /* not initialized */
    201 	V4L2_PRIORITY_BACKGROUND  = 1,
    202 	V4L2_PRIORITY_INTERACTIVE = 2,
    203 	V4L2_PRIORITY_RECORD      = 3,
    204 	V4L2_PRIORITY_DEFAULT     = V4L2_PRIORITY_INTERACTIVE,
    205 };
    206 
    207 struct v4l2_rect {
    208 	__s32   left;
    209 	__s32   top;
    210 	__u32   width;
    211 	__u32   height;
    212 };
    213 
    214 struct v4l2_fract {
    215 	__u32   numerator;
    216 	__u32   denominator;
    217 };
    218 
    219 /**
    220   * struct v4l2_capability - Describes V4L2 device caps returned by VIDIOC_QUERYCAP
    221   *
    222   * @driver:	   name of the driver module (e.g. "bttv")
    223   * @card:	   name of the card (e.g. "Hauppauge WinTV")
    224   * @bus_info:	   name of the bus (e.g. "PCI:" + pci_name(pci_dev) )
    225   * @version:	   KERNEL_VERSION
    226   * @capabilities: capabilities of the physical device as a whole
    227   * @device_caps:  capabilities accessed via this particular device (node)
    228   * @reserved:	   reserved fields for future extensions
    229   */
    230 struct v4l2_capability {
    231 	__u8	driver[16];
    232 	__u8	card[32];
    233 	__u8	bus_info[32];
    234 	__u32   version;
    235 	__u32	capabilities;
    236 	__u32	device_caps;
    237 	__u32	reserved[3];
    238 };
    239 
    240 /* Values for 'capabilities' field */
    241 #define V4L2_CAP_VIDEO_CAPTURE		0x00000001  /* Is a video capture device */
    242 #define V4L2_CAP_VIDEO_OUTPUT		0x00000002  /* Is a video output device */
    243 #define V4L2_CAP_VIDEO_OVERLAY		0x00000004  /* Can do video overlay */
    244 #define V4L2_CAP_VBI_CAPTURE		0x00000010  /* Is a raw VBI capture device */
    245 #define V4L2_CAP_VBI_OUTPUT		0x00000020  /* Is a raw VBI output device */
    246 #define V4L2_CAP_SLICED_VBI_CAPTURE	0x00000040  /* Is a sliced VBI capture device */
    247 #define V4L2_CAP_SLICED_VBI_OUTPUT	0x00000080  /* Is a sliced VBI output device */
    248 #define V4L2_CAP_RDS_CAPTURE		0x00000100  /* RDS data capture */
    249 #define V4L2_CAP_VIDEO_OUTPUT_OVERLAY	0x00000200  /* Can do video output overlay */
    250 #define V4L2_CAP_HW_FREQ_SEEK		0x00000400  /* Can do hardware frequency seek  */
    251 #define V4L2_CAP_RDS_OUTPUT		0x00000800  /* Is an RDS encoder */
    252 
    253 /* Is a video capture device that supports multiplanar formats */
    254 #define V4L2_CAP_VIDEO_CAPTURE_MPLANE	0x00001000
    255 /* Is a video output device that supports multiplanar formats */
    256 #define V4L2_CAP_VIDEO_OUTPUT_MPLANE	0x00002000
    257 /* Is a video mem-to-mem device that supports multiplanar formats */
    258 #define V4L2_CAP_VIDEO_M2M_MPLANE	0x00004000
    259 /* Is a video mem-to-mem device */
    260 #define V4L2_CAP_VIDEO_M2M		0x00008000
    261 
    262 #define V4L2_CAP_TUNER			0x00010000  /* has a tuner */
    263 #define V4L2_CAP_AUDIO			0x00020000  /* has audio support */
    264 #define V4L2_CAP_RADIO			0x00040000  /* is a radio device */
    265 #define V4L2_CAP_MODULATOR		0x00080000  /* has a modulator */
    266 
    267 #define V4L2_CAP_READWRITE              0x01000000  /* read/write systemcalls */
    268 #define V4L2_CAP_ASYNCIO                0x02000000  /* async I/O */
    269 #define V4L2_CAP_STREAMING              0x04000000  /* streaming I/O ioctls */
    270 
    271 #define V4L2_CAP_DEVICE_CAPS            0x80000000  /* sets device capabilities field */
    272 
    273 /*
    274  *	V I D E O   I M A G E   F O R M A T
    275  */
    276 struct v4l2_pix_format {
    277 	__u32         		width;
    278 	__u32			height;
    279 	__u32			pixelformat;
    280 	__u32			field;		/* enum v4l2_field */
    281 	__u32            	bytesperline;	/* for padding, zero if unused */
    282 	__u32          		sizeimage;
    283 	__u32			colorspace;	/* enum v4l2_colorspace */
    284 	__u32			priv;		/* private data, depends on pixelformat */
    285 };
    286 
    287 /*      Pixel format         FOURCC                          depth  Description  */
    288 
    289 /* RGB formats */
    290 #define V4L2_PIX_FMT_RGB332  v4l2_fourcc('R', 'G', 'B', '1') /*  8  RGB-3-3-2     */
    291 #define V4L2_PIX_FMT_RGB444  v4l2_fourcc('R', '4', '4', '4') /* 16  xxxxrrrr ggggbbbb */
    292 #define V4L2_PIX_FMT_RGB555  v4l2_fourcc('R', 'G', 'B', 'O') /* 16  RGB-5-5-5     */
    293 #define V4L2_PIX_FMT_RGB565  v4l2_fourcc('R', 'G', 'B', 'P') /* 16  RGB-5-6-5     */
    294 #define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R', 'G', 'B', 'Q') /* 16  RGB-5-5-5 BE  */
    295 #define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R', 'G', 'B', 'R') /* 16  RGB-5-6-5 BE  */
    296 #define V4L2_PIX_FMT_BGR666  v4l2_fourcc('B', 'G', 'R', 'H') /* 18  BGR-6-6-6	  */
    297 #define V4L2_PIX_FMT_BGR24   v4l2_fourcc('B', 'G', 'R', '3') /* 24  BGR-8-8-8     */
    298 #define V4L2_PIX_FMT_RGB24   v4l2_fourcc('R', 'G', 'B', '3') /* 24  RGB-8-8-8     */
    299 #define V4L2_PIX_FMT_BGR32   v4l2_fourcc('B', 'G', 'R', '4') /* 32  BGR-8-8-8-8   */
    300 #define V4L2_PIX_FMT_RGB32   v4l2_fourcc('R', 'G', 'B', '4') /* 32  RGB-8-8-8-8   */
    301 
    302 /* Grey formats */
    303 #define V4L2_PIX_FMT_GREY    v4l2_fourcc('G', 'R', 'E', 'Y') /*  8  Greyscale     */
    304 #define V4L2_PIX_FMT_Y4      v4l2_fourcc('Y', '0', '4', ' ') /*  4  Greyscale     */
    305 #define V4L2_PIX_FMT_Y6      v4l2_fourcc('Y', '0', '6', ' ') /*  6  Greyscale     */
    306 #define V4L2_PIX_FMT_Y10     v4l2_fourcc('Y', '1', '0', ' ') /* 10  Greyscale     */
    307 #define V4L2_PIX_FMT_Y12     v4l2_fourcc('Y', '1', '2', ' ') /* 12  Greyscale     */
    308 #define V4L2_PIX_FMT_Y16     v4l2_fourcc('Y', '1', '6', ' ') /* 16  Greyscale     */
    309 
    310 /* Grey bit-packed formats */
    311 #define V4L2_PIX_FMT_Y10BPACK    v4l2_fourcc('Y', '1', '0', 'B') /* 10  Greyscale bit-packed */
    312 
    313 /* Palette formats */
    314 #define V4L2_PIX_FMT_PAL8    v4l2_fourcc('P', 'A', 'L', '8') /*  8  8-bit palette */
    315 
    316 /* Chrominance formats */
    317 #define V4L2_PIX_FMT_UV8     v4l2_fourcc('U', 'V', '8', ' ') /*  8  UV 4:4 */
    318 
    319 /* Luminance+Chrominance formats */
    320 #define V4L2_PIX_FMT_YVU410  v4l2_fourcc('Y', 'V', 'U', '9') /*  9  YVU 4:1:0     */
    321 #define V4L2_PIX_FMT_YVU420  v4l2_fourcc('Y', 'V', '1', '2') /* 12  YVU 4:2:0     */
    322 #define V4L2_PIX_FMT_YUYV    v4l2_fourcc('Y', 'U', 'Y', 'V') /* 16  YUV 4:2:2     */
    323 #define V4L2_PIX_FMT_YYUV    v4l2_fourcc('Y', 'Y', 'U', 'V') /* 16  YUV 4:2:2     */
    324 #define V4L2_PIX_FMT_YVYU    v4l2_fourcc('Y', 'V', 'Y', 'U') /* 16 YVU 4:2:2 */
    325 #define V4L2_PIX_FMT_UYVY    v4l2_fourcc('U', 'Y', 'V', 'Y') /* 16  YUV 4:2:2     */
    326 #define V4L2_PIX_FMT_VYUY    v4l2_fourcc('V', 'Y', 'U', 'Y') /* 16  YUV 4:2:2     */
    327 #define V4L2_PIX_FMT_YUV422P v4l2_fourcc('4', '2', '2', 'P') /* 16  YVU422 planar */
    328 #define V4L2_PIX_FMT_YUV411P v4l2_fourcc('4', '1', '1', 'P') /* 16  YVU411 planar */
    329 #define V4L2_PIX_FMT_Y41P    v4l2_fourcc('Y', '4', '1', 'P') /* 12  YUV 4:1:1     */
    330 #define V4L2_PIX_FMT_YUV444  v4l2_fourcc('Y', '4', '4', '4') /* 16  xxxxyyyy uuuuvvvv */
    331 #define V4L2_PIX_FMT_YUV555  v4l2_fourcc('Y', 'U', 'V', 'O') /* 16  YUV-5-5-5     */
    332 #define V4L2_PIX_FMT_YUV565  v4l2_fourcc('Y', 'U', 'V', 'P') /* 16  YUV-5-6-5     */
    333 #define V4L2_PIX_FMT_YUV32   v4l2_fourcc('Y', 'U', 'V', '4') /* 32  YUV-8-8-8-8   */
    334 #define V4L2_PIX_FMT_YUV410  v4l2_fourcc('Y', 'U', 'V', '9') /*  9  YUV 4:1:0     */
    335 #define V4L2_PIX_FMT_YUV420  v4l2_fourcc('Y', 'U', '1', '2') /* 12  YUV 4:2:0     */
    336 #define V4L2_PIX_FMT_HI240   v4l2_fourcc('H', 'I', '2', '4') /*  8  8-bit color   */
    337 #define V4L2_PIX_FMT_HM12    v4l2_fourcc('H', 'M', '1', '2') /*  8  YUV 4:2:0 16x16 macroblocks */
    338 #define V4L2_PIX_FMT_M420    v4l2_fourcc('M', '4', '2', '0') /* 12  YUV 4:2:0 2 lines y, 1 line uv interleaved */
    339 
    340 /* two planes -- one Y, one Cr + Cb interleaved  */
    341 #define V4L2_PIX_FMT_NV12    v4l2_fourcc('N', 'V', '1', '2') /* 12  Y/CbCr 4:2:0  */
    342 #define V4L2_PIX_FMT_NV21    v4l2_fourcc('N', 'V', '2', '1') /* 12  Y/CrCb 4:2:0  */
    343 #define V4L2_PIX_FMT_NV16    v4l2_fourcc('N', 'V', '1', '6') /* 16  Y/CbCr 4:2:2  */
    344 #define V4L2_PIX_FMT_NV61    v4l2_fourcc('N', 'V', '6', '1') /* 16  Y/CrCb 4:2:2  */
    345 #define V4L2_PIX_FMT_NV24    v4l2_fourcc('N', 'V', '2', '4') /* 24  Y/CbCr 4:4:4  */
    346 #define V4L2_PIX_FMT_NV42    v4l2_fourcc('N', 'V', '4', '2') /* 24  Y/CrCb 4:4:4  */
    347 
    348 /* two non contiguous planes - one Y, one Cr + Cb interleaved  */
    349 #define V4L2_PIX_FMT_NV12M   v4l2_fourcc('N', 'M', '1', '2') /* 12  Y/CbCr 4:2:0  */
    350 #define V4L2_PIX_FMT_NV21M   v4l2_fourcc('N', 'M', '2', '1') /* 21  Y/CrCb 4:2:0  */
    351 #define V4L2_PIX_FMT_NV16M   v4l2_fourcc('N', 'M', '1', '6') /* 16  Y/CbCr 4:2:2  */
    352 #define V4L2_PIX_FMT_NV61M   v4l2_fourcc('N', 'M', '6', '1') /* 16  Y/CrCb 4:2:2  */
    353 #define V4L2_PIX_FMT_NV12MT  v4l2_fourcc('T', 'M', '1', '2') /* 12  Y/CbCr 4:2:0 64x32 macroblocks */
    354 #define V4L2_PIX_FMT_NV12MT_16X16 v4l2_fourcc('V', 'M', '1', '2') /* 12  Y/CbCr 4:2:0 16x16 macroblocks */
    355 
    356 /* three non contiguous planes - Y, Cb, Cr */
    357 #define V4L2_PIX_FMT_YUV420M v4l2_fourcc('Y', 'M', '1', '2') /* 12  YUV420 planar */
    358 #define V4L2_PIX_FMT_YVU420M v4l2_fourcc('Y', 'M', '2', '1') /* 12  YVU420 planar */
    359 
    360 /* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */
    361 #define V4L2_PIX_FMT_SBGGR8  v4l2_fourcc('B', 'A', '8', '1') /*  8  BGBG.. GRGR.. */
    362 #define V4L2_PIX_FMT_SGBRG8  v4l2_fourcc('G', 'B', 'R', 'G') /*  8  GBGB.. RGRG.. */
    363 #define V4L2_PIX_FMT_SGRBG8  v4l2_fourcc('G', 'R', 'B', 'G') /*  8  GRGR.. BGBG.. */
    364 #define V4L2_PIX_FMT_SRGGB8  v4l2_fourcc('R', 'G', 'G', 'B') /*  8  RGRG.. GBGB.. */
    365 #define V4L2_PIX_FMT_SBGGR10 v4l2_fourcc('B', 'G', '1', '0') /* 10  BGBG.. GRGR.. */
    366 #define V4L2_PIX_FMT_SGBRG10 v4l2_fourcc('G', 'B', '1', '0') /* 10  GBGB.. RGRG.. */
    367 #define V4L2_PIX_FMT_SGRBG10 v4l2_fourcc('B', 'A', '1', '0') /* 10  GRGR.. BGBG.. */
    368 #define V4L2_PIX_FMT_SRGGB10 v4l2_fourcc('R', 'G', '1', '0') /* 10  RGRG.. GBGB.. */
    369 #define V4L2_PIX_FMT_SBGGR12 v4l2_fourcc('B', 'G', '1', '2') /* 12  BGBG.. GRGR.. */
    370 #define V4L2_PIX_FMT_SGBRG12 v4l2_fourcc('G', 'B', '1', '2') /* 12  GBGB.. RGRG.. */
    371 #define V4L2_PIX_FMT_SGRBG12 v4l2_fourcc('B', 'A', '1', '2') /* 12  GRGR.. BGBG.. */
    372 #define V4L2_PIX_FMT_SRGGB12 v4l2_fourcc('R', 'G', '1', '2') /* 12  RGRG.. GBGB.. */
    373 	/* 10bit raw bayer a-law compressed to 8 bits */
    374 #define V4L2_PIX_FMT_SBGGR10ALAW8 v4l2_fourcc('a', 'B', 'A', '8')
    375 #define V4L2_PIX_FMT_SGBRG10ALAW8 v4l2_fourcc('a', 'G', 'A', '8')
    376 #define V4L2_PIX_FMT_SGRBG10ALAW8 v4l2_fourcc('a', 'g', 'A', '8')
    377 #define V4L2_PIX_FMT_SRGGB10ALAW8 v4l2_fourcc('a', 'R', 'A', '8')
    378 	/* 10bit raw bayer DPCM compressed to 8 bits */
    379 #define V4L2_PIX_FMT_SBGGR10DPCM8 v4l2_fourcc('b', 'B', 'A', '8')
    380 #define V4L2_PIX_FMT_SGBRG10DPCM8 v4l2_fourcc('b', 'G', 'A', '8')
    381 #define V4L2_PIX_FMT_SGRBG10DPCM8 v4l2_fourcc('B', 'D', '1', '0')
    382 #define V4L2_PIX_FMT_SRGGB10DPCM8 v4l2_fourcc('b', 'R', 'A', '8')
    383 	/*
    384 	 * 10bit raw bayer, expanded to 16 bits
    385 	 * xxxxrrrrrrrrrrxxxxgggggggggg xxxxggggggggggxxxxbbbbbbbbbb...
    386 	 */
    387 #define V4L2_PIX_FMT_SBGGR16 v4l2_fourcc('B', 'Y', 'R', '2') /* 16  BGBG.. GRGR.. */
    388 
    389 /* compressed formats */
    390 #define V4L2_PIX_FMT_MJPEG    v4l2_fourcc('M', 'J', 'P', 'G') /* Motion-JPEG   */
    391 #define V4L2_PIX_FMT_JPEG     v4l2_fourcc('J', 'P', 'E', 'G') /* JFIF JPEG     */
    392 #define V4L2_PIX_FMT_DV       v4l2_fourcc('d', 'v', 's', 'd') /* 1394          */
    393 #define V4L2_PIX_FMT_MPEG     v4l2_fourcc('M', 'P', 'E', 'G') /* MPEG-1/2/4 Multiplexed */
    394 #define V4L2_PIX_FMT_H264     v4l2_fourcc('H', '2', '6', '4') /* H264 with start codes */
    395 #define V4L2_PIX_FMT_H264_NO_SC v4l2_fourcc('A', 'V', 'C', '1') /* H264 without start codes */
    396 #define V4L2_PIX_FMT_H264_MVC v4l2_fourcc('M', '2', '6', '4') /* H264 MVC */
    397 #define V4L2_PIX_FMT_H263     v4l2_fourcc('H', '2', '6', '3') /* H263          */
    398 #define V4L2_PIX_FMT_MPEG1    v4l2_fourcc('M', 'P', 'G', '1') /* MPEG-1 ES     */
    399 #define V4L2_PIX_FMT_MPEG2    v4l2_fourcc('M', 'P', 'G', '2') /* MPEG-2 ES     */
    400 #define V4L2_PIX_FMT_MPEG4    v4l2_fourcc('M', 'P', 'G', '4') /* MPEG-4 part 2 ES */
    401 #define V4L2_PIX_FMT_XVID     v4l2_fourcc('X', 'V', 'I', 'D') /* Xvid           */
    402 #define V4L2_PIX_FMT_VC1_ANNEX_G v4l2_fourcc('V', 'C', '1', 'G') /* SMPTE 421M Annex G compliant stream */
    403 #define V4L2_PIX_FMT_VC1_ANNEX_L v4l2_fourcc('V', 'C', '1', 'L') /* SMPTE 421M Annex L compliant stream */
    404 #define V4L2_PIX_FMT_VP8      v4l2_fourcc('V', 'P', '8', '0') /* VP8 */
    405 
    406 /*  Vendor-specific formats   */
    407 #define V4L2_PIX_FMT_CPIA1    v4l2_fourcc('C', 'P', 'I', 'A') /* cpia1 YUV */
    408 #define V4L2_PIX_FMT_WNVA     v4l2_fourcc('W', 'N', 'V', 'A') /* Winnov hw compress */
    409 #define V4L2_PIX_FMT_SN9C10X  v4l2_fourcc('S', '9', '1', '0') /* SN9C10x compression */
    410 #define V4L2_PIX_FMT_SN9C20X_I420 v4l2_fourcc('S', '9', '2', '0') /* SN9C20x YUV 4:2:0 */
    411 #define V4L2_PIX_FMT_PWC1     v4l2_fourcc('P', 'W', 'C', '1') /* pwc older webcam */
    412 #define V4L2_PIX_FMT_PWC2     v4l2_fourcc('P', 'W', 'C', '2') /* pwc newer webcam */
    413 #define V4L2_PIX_FMT_ET61X251 v4l2_fourcc('E', '6', '2', '5') /* ET61X251 compression */
    414 #define V4L2_PIX_FMT_SPCA501  v4l2_fourcc('S', '5', '0', '1') /* YUYV per line */
    415 #define V4L2_PIX_FMT_SPCA505  v4l2_fourcc('S', '5', '0', '5') /* YYUV per line */
    416 #define V4L2_PIX_FMT_SPCA508  v4l2_fourcc('S', '5', '0', '8') /* YUVY per line */
    417 #define V4L2_PIX_FMT_SPCA561  v4l2_fourcc('S', '5', '6', '1') /* compressed GBRG bayer */
    418 #define V4L2_PIX_FMT_PAC207   v4l2_fourcc('P', '2', '0', '7') /* compressed BGGR bayer */
    419 #define V4L2_PIX_FMT_MR97310A v4l2_fourcc('M', '3', '1', '0') /* compressed BGGR bayer */
    420 #define V4L2_PIX_FMT_JL2005BCD v4l2_fourcc('J', 'L', '2', '0') /* compressed RGGB bayer */
    421 #define V4L2_PIX_FMT_SN9C2028 v4l2_fourcc('S', 'O', 'N', 'X') /* compressed GBRG bayer */
    422 #define V4L2_PIX_FMT_SQ905C   v4l2_fourcc('9', '0', '5', 'C') /* compressed RGGB bayer */
    423 #define V4L2_PIX_FMT_PJPG     v4l2_fourcc('P', 'J', 'P', 'G') /* Pixart 73xx JPEG */
    424 #define V4L2_PIX_FMT_OV511    v4l2_fourcc('O', '5', '1', '1') /* ov511 JPEG */
    425 #define V4L2_PIX_FMT_OV518    v4l2_fourcc('O', '5', '1', '8') /* ov518 JPEG */
    426 #define V4L2_PIX_FMT_STV0680  v4l2_fourcc('S', '6', '8', '0') /* stv0680 bayer */
    427 #define V4L2_PIX_FMT_TM6000   v4l2_fourcc('T', 'M', '6', '0') /* tm5600/tm60x0 */
    428 #define V4L2_PIX_FMT_CIT_YYVYUY v4l2_fourcc('C', 'I', 'T', 'V') /* one line of Y then 1 line of VYUY */
    429 #define V4L2_PIX_FMT_KONICA420  v4l2_fourcc('K', 'O', 'N', 'I') /* YUV420 planar in blocks of 256 pixels */
    430 #define V4L2_PIX_FMT_JPGL	v4l2_fourcc('J', 'P', 'G', 'L') /* JPEG-Lite */
    431 #define V4L2_PIX_FMT_SE401      v4l2_fourcc('S', '4', '0', '1') /* se401 janggu compressed rgb */
    432 #define V4L2_PIX_FMT_S5C_UYVY_JPG v4l2_fourcc('S', '5', 'C', 'I') /* S5C73M3 interleaved UYVY/JPEG */
    433 
    434 /*
    435  *	F O R M A T   E N U M E R A T I O N
    436  */
    437 struct v4l2_fmtdesc {
    438 	__u32		    index;             /* Format number      */
    439 	__u32		    type;              /* enum v4l2_buf_type */
    440 	__u32               flags;
    441 	__u8		    description[32];   /* Description string */
    442 	__u32		    pixelformat;       /* Format fourcc      */
    443 	__u32		    reserved[4];
    444 };
    445 
    446 #define V4L2_FMT_FLAG_COMPRESSED 0x0001
    447 #define V4L2_FMT_FLAG_EMULATED   0x0002
    448 
    449 #if 1
    450 	/* Experimental Frame Size and frame rate enumeration */
    451 /*
    452  *	F R A M E   S I Z E   E N U M E R A T I O N
    453  */
    454 enum v4l2_frmsizetypes {
    455 	V4L2_FRMSIZE_TYPE_DISCRETE	= 1,
    456 	V4L2_FRMSIZE_TYPE_CONTINUOUS	= 2,
    457 	V4L2_FRMSIZE_TYPE_STEPWISE	= 3,
    458 };
    459 
    460 struct v4l2_frmsize_discrete {
    461 	__u32			width;		/* Frame width [pixel] */
    462 	__u32			height;		/* Frame height [pixel] */
    463 };
    464 
    465 struct v4l2_frmsize_stepwise {
    466 	__u32			min_width;	/* Minimum frame width [pixel] */
    467 	__u32			max_width;	/* Maximum frame width [pixel] */
    468 	__u32			step_width;	/* Frame width step size [pixel] */
    469 	__u32			min_height;	/* Minimum frame height [pixel] */
    470 	__u32			max_height;	/* Maximum frame height [pixel] */
    471 	__u32			step_height;	/* Frame height step size [pixel] */
    472 };
    473 
    474 struct v4l2_frmsizeenum {
    475 	__u32			index;		/* Frame size number */
    476 	__u32			pixel_format;	/* Pixel format */
    477 	__u32			type;		/* Frame size type the device supports. */
    478 
    479 	union {					/* Frame size */
    480 		struct v4l2_frmsize_discrete	discrete;
    481 		struct v4l2_frmsize_stepwise	stepwise;
    482 	};
    483 
    484 	__u32   reserved[2];			/* Reserved space for future use */
    485 };
    486 
    487 /*
    488  *	F R A M E   R A T E   E N U M E R A T I O N
    489  */
    490 enum v4l2_frmivaltypes {
    491 	V4L2_FRMIVAL_TYPE_DISCRETE	= 1,
    492 	V4L2_FRMIVAL_TYPE_CONTINUOUS	= 2,
    493 	V4L2_FRMIVAL_TYPE_STEPWISE	= 3,
    494 };
    495 
    496 struct v4l2_frmival_stepwise {
    497 	struct v4l2_fract	min;		/* Minimum frame interval [s] */
    498 	struct v4l2_fract	max;		/* Maximum frame interval [s] */
    499 	struct v4l2_fract	step;		/* Frame interval step size [s] */
    500 };
    501 
    502 struct v4l2_frmivalenum {
    503 	__u32			index;		/* Frame format index */
    504 	__u32			pixel_format;	/* Pixel format */
    505 	__u32			width;		/* Frame width */
    506 	__u32			height;		/* Frame height */
    507 	__u32			type;		/* Frame interval type the device supports. */
    508 
    509 	union {					/* Frame interval */
    510 		struct v4l2_fract		discrete;
    511 		struct v4l2_frmival_stepwise	stepwise;
    512 	};
    513 
    514 	__u32	reserved[2];			/* Reserved space for future use */
    515 };
    516 #endif
    517 
    518 /*
    519  *	T I M E C O D E
    520  */
    521 struct v4l2_timecode {
    522 	__u32	type;
    523 	__u32	flags;
    524 	__u8	frames;
    525 	__u8	seconds;
    526 	__u8	minutes;
    527 	__u8	hours;
    528 	__u8	userbits[4];
    529 };
    530 
    531 /*  Type  */
    532 #define V4L2_TC_TYPE_24FPS		1
    533 #define V4L2_TC_TYPE_25FPS		2
    534 #define V4L2_TC_TYPE_30FPS		3
    535 #define V4L2_TC_TYPE_50FPS		4
    536 #define V4L2_TC_TYPE_60FPS		5
    537 
    538 /*  Flags  */
    539 #define V4L2_TC_FLAG_DROPFRAME		0x0001 /* "drop-frame" mode */
    540 #define V4L2_TC_FLAG_COLORFRAME		0x0002
    541 #define V4L2_TC_USERBITS_field		0x000C
    542 #define V4L2_TC_USERBITS_USERDEFINED	0x0000
    543 #define V4L2_TC_USERBITS_8BITCHARS	0x0008
    544 /* The above is based on SMPTE timecodes */
    545 
    546 struct v4l2_jpegcompression {
    547 	int quality;
    548 
    549 	int  APPn;              /* Number of APP segment to be written,
    550 				 * must be 0..15 */
    551 	int  APP_len;           /* Length of data in JPEG APPn segment */
    552 	char APP_data[60];      /* Data in the JPEG APPn segment. */
    553 
    554 	int  COM_len;           /* Length of data in JPEG COM segment */
    555 	char COM_data[60];      /* Data in JPEG COM segment */
    556 
    557 	__u32 jpeg_markers;     /* Which markers should go into the JPEG
    558 				 * output. Unless you exactly know what
    559 				 * you do, leave them untouched.
    560 				 * Including less markers will make the
    561 				 * resulting code smaller, but there will
    562 				 * be fewer applications which can read it.
    563 				 * The presence of the APP and COM marker
    564 				 * is influenced by APP_len and COM_len
    565 				 * ONLY, not by this property! */
    566 
    567 #define V4L2_JPEG_MARKER_DHT (1<<3)    /* Define Huffman Tables */
    568 #define V4L2_JPEG_MARKER_DQT (1<<4)    /* Define Quantization Tables */
    569 #define V4L2_JPEG_MARKER_DRI (1<<5)    /* Define Restart Interval */
    570 #define V4L2_JPEG_MARKER_COM (1<<6)    /* Comment segment */
    571 #define V4L2_JPEG_MARKER_APP (1<<7)    /* App segment, driver will
    572 					* always use APP0 */
    573 };
    574 
    575 /*
    576  *	M E M O R Y - M A P P I N G   B U F F E R S
    577  */
    578 struct v4l2_requestbuffers {
    579 	__u32			count;
    580 	__u32			type;		/* enum v4l2_buf_type */
    581 	__u32			memory;		/* enum v4l2_memory */
    582 	__u32			reserved[2];
    583 };
    584 
    585 /**
    586  * struct v4l2_plane - plane info for multi-planar buffers
    587  * @bytesused:		number of bytes occupied by data in the plane (payload)
    588  * @length:		size of this plane (NOT the payload) in bytes
    589  * @mem_offset:		when memory in the associated struct v4l2_buffer is
    590  *			V4L2_MEMORY_MMAP, equals the offset from the start of
    591  *			the device memory for this plane (or is a "cookie" that
    592  *			should be passed to mmap() called on the video node)
    593  * @userptr:		when memory is V4L2_MEMORY_USERPTR, a userspace pointer
    594  *			pointing to this plane
    595  * @fd:			when memory is V4L2_MEMORY_DMABUF, a userspace file
    596  *			descriptor associated with this plane
    597  * @data_offset:	offset in the plane to the start of data; usually 0,
    598  *			unless there is a header in front of the data
    599  *
    600  * Multi-planar buffers consist of one or more planes, e.g. an YCbCr buffer
    601  * with two planes can have one plane for Y, and another for interleaved CbCr
    602  * components. Each plane can reside in a separate memory buffer, or even in
    603  * a completely separate memory node (e.g. in embedded devices).
    604  */
    605 struct v4l2_plane {
    606 	__u32			bytesused;
    607 	__u32			length;
    608 	union {
    609 		__u32		mem_offset;
    610 		unsigned long	userptr;
    611 		__s32		fd;
    612 	} m;
    613 	__u32			data_offset;
    614 	__u32			reserved[11];
    615 };
    616 
    617 /**
    618  * struct v4l2_buffer - video buffer info
    619  * @index:	id number of the buffer
    620  * @type:	enum v4l2_buf_type; buffer type (type == *_MPLANE for
    621  *		multiplanar buffers);
    622  * @bytesused:	number of bytes occupied by data in the buffer (payload);
    623  *		unused (set to 0) for multiplanar buffers
    624  * @flags:	buffer informational flags
    625  * @field:	enum v4l2_field; field order of the image in the buffer
    626  * @timestamp:	frame timestamp
    627  * @timecode:	frame timecode
    628  * @sequence:	sequence count of this frame
    629  * @memory:	enum v4l2_memory; the method, in which the actual video data is
    630  *		passed
    631  * @offset:	for non-multiplanar buffers with memory == V4L2_MEMORY_MMAP;
    632  *		offset from the start of the device memory for this plane,
    633  *		(or a "cookie" that should be passed to mmap() as offset)
    634  * @userptr:	for non-multiplanar buffers with memory == V4L2_MEMORY_USERPTR;
    635  *		a userspace pointer pointing to this buffer
    636  * @fd:		for non-multiplanar buffers with memory == V4L2_MEMORY_DMABUF;
    637  *		a userspace file descriptor associated with this buffer
    638  * @planes:	for multiplanar buffers; userspace pointer to the array of plane
    639  *		info structs for this buffer
    640  * @length:	size in bytes of the buffer (NOT its payload) for single-plane
    641  *		buffers (when type != *_MPLANE); number of elements in the
    642  *		planes array for multi-plane buffers
    643  * @input:	input number from which the video data has has been captured
    644  *
    645  * Contains data exchanged by application and driver using one of the Streaming
    646  * I/O methods.
    647  */
    648 struct v4l2_buffer {
    649 	__u32			index;
    650 	__u32			type;
    651 	__u32			bytesused;
    652 	__u32			flags;
    653 	__u32			field;
    654 	struct timeval		timestamp;
    655 	struct v4l2_timecode	timecode;
    656 	__u32			sequence;
    657 
    658 	/* memory location */
    659 	__u32			memory;
    660 	union {
    661 		__u32           offset;
    662 		unsigned long   userptr;
    663 		struct v4l2_plane *planes;
    664 		__s32		fd;
    665 	} m;
    666 	__u32			length;
    667 	__u32			reserved2;
    668 	__u32			reserved;
    669 };
    670 
    671 /*  Flags for 'flags' field */
    672 #define V4L2_BUF_FLAG_MAPPED	0x0001  /* Buffer is mapped (flag) */
    673 #define V4L2_BUF_FLAG_QUEUED	0x0002	/* Buffer is queued for processing */
    674 #define V4L2_BUF_FLAG_DONE	0x0004	/* Buffer is ready */
    675 #define V4L2_BUF_FLAG_KEYFRAME	0x0008	/* Image is a keyframe (I-frame) */
    676 #define V4L2_BUF_FLAG_PFRAME	0x0010	/* Image is a P-frame */
    677 #define V4L2_BUF_FLAG_BFRAME	0x0020	/* Image is a B-frame */
    678 /* Buffer is ready, but the data contained within is corrupted. */
    679 #define V4L2_BUF_FLAG_ERROR	0x0040
    680 #define V4L2_BUF_FLAG_TIMECODE	0x0100	/* timecode field is valid */
    681 #define V4L2_BUF_FLAG_PREPARED	0x0400	/* Buffer is prepared for queuing */
    682 /* Cache handling flags */
    683 #define V4L2_BUF_FLAG_NO_CACHE_INVALIDATE	0x0800
    684 #define V4L2_BUF_FLAG_NO_CACHE_CLEAN		0x1000
    685 /* Timestamp type */
    686 #define V4L2_BUF_FLAG_TIMESTAMP_MASK		0xe000
    687 #define V4L2_BUF_FLAG_TIMESTAMP_UNKNOWN		0x0000
    688 #define V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC	0x2000
    689 #define V4L2_BUF_FLAG_TIMESTAMP_COPY		0x4000
    690 
    691 /**
    692  * struct v4l2_exportbuffer - export of video buffer as DMABUF file descriptor
    693  *
    694  * @index:	id number of the buffer
    695  * @type:	enum v4l2_buf_type; buffer type (type == *_MPLANE for
    696  *		multiplanar buffers);
    697  * @plane:	index of the plane to be exported, 0 for single plane queues
    698  * @flags:	flags for newly created file, currently only O_CLOEXEC is
    699  *		supported, refer to manual of open syscall for more details
    700  * @fd:		file descriptor associated with DMABUF (set by driver)
    701  *
    702  * Contains data used for exporting a video buffer as DMABUF file descriptor.
    703  * The buffer is identified by a 'cookie' returned by VIDIOC_QUERYBUF
    704  * (identical to the cookie used to mmap() the buffer to userspace). All
    705  * reserved fields must be set to zero. The field reserved0 is expected to
    706  * become a structure 'type' allowing an alternative layout of the structure
    707  * content. Therefore this field should not be used for any other extensions.
    708  */
    709 struct v4l2_exportbuffer {
    710 	__u32		type; /* enum v4l2_buf_type */
    711 	__u32		index;
    712 	__u32		plane;
    713 	__u32		flags;
    714 	__s32		fd;
    715 	__u32		reserved[11];
    716 };
    717 
    718 /*
    719  *	O V E R L A Y   P R E V I E W
    720  */
    721 struct v4l2_framebuffer {
    722 	__u32			capability;
    723 	__u32			flags;
    724 /* FIXME: in theory we should pass something like PCI device + memory
    725  * region + offset instead of some physical address */
    726 	void                    *base;
    727 	struct v4l2_pix_format	fmt;
    728 };
    729 /*  Flags for the 'capability' field. Read only */
    730 #define V4L2_FBUF_CAP_EXTERNOVERLAY	0x0001
    731 #define V4L2_FBUF_CAP_CHROMAKEY		0x0002
    732 #define V4L2_FBUF_CAP_LIST_CLIPPING     0x0004
    733 #define V4L2_FBUF_CAP_BITMAP_CLIPPING	0x0008
    734 #define V4L2_FBUF_CAP_LOCAL_ALPHA	0x0010
    735 #define V4L2_FBUF_CAP_GLOBAL_ALPHA	0x0020
    736 #define V4L2_FBUF_CAP_LOCAL_INV_ALPHA	0x0040
    737 #define V4L2_FBUF_CAP_SRC_CHROMAKEY	0x0080
    738 /*  Flags for the 'flags' field. */
    739 #define V4L2_FBUF_FLAG_PRIMARY		0x0001
    740 #define V4L2_FBUF_FLAG_OVERLAY		0x0002
    741 #define V4L2_FBUF_FLAG_CHROMAKEY	0x0004
    742 #define V4L2_FBUF_FLAG_LOCAL_ALPHA	0x0008
    743 #define V4L2_FBUF_FLAG_GLOBAL_ALPHA	0x0010
    744 #define V4L2_FBUF_FLAG_LOCAL_INV_ALPHA	0x0020
    745 #define V4L2_FBUF_FLAG_SRC_CHROMAKEY	0x0040
    746 
    747 struct v4l2_clip {
    748 	struct v4l2_rect        c;
    749 	struct v4l2_clip	__user *next;
    750 };
    751 
    752 struct v4l2_window {
    753 	struct v4l2_rect        w;
    754 	__u32			field;	 /* enum v4l2_field */
    755 	__u32			chromakey;
    756 	struct v4l2_clip	__user *clips;
    757 	__u32			clipcount;
    758 	void			__user *bitmap;
    759 	__u8                    global_alpha;
    760 };
    761 
    762 /*
    763  *	C A P T U R E   P A R A M E T E R S
    764  */
    765 struct v4l2_captureparm {
    766 	__u32		   capability;	  /*  Supported modes */
    767 	__u32		   capturemode;	  /*  Current mode */
    768 	struct v4l2_fract  timeperframe;  /*  Time per frame in seconds */
    769 	__u32		   extendedmode;  /*  Driver-specific extensions */
    770 	__u32              readbuffers;   /*  # of buffers for read */
    771 	__u32		   reserved[4];
    772 };
    773 
    774 /*  Flags for 'capability' and 'capturemode' fields */
    775 #define V4L2_MODE_HIGHQUALITY	0x0001	/*  High quality imaging mode */
    776 #define V4L2_CAP_TIMEPERFRAME	0x1000	/*  timeperframe field is supported */
    777 
    778 struct v4l2_outputparm {
    779 	__u32		   capability;	 /*  Supported modes */
    780 	__u32		   outputmode;	 /*  Current mode */
    781 	struct v4l2_fract  timeperframe; /*  Time per frame in seconds */
    782 	__u32		   extendedmode; /*  Driver-specific extensions */
    783 	__u32              writebuffers; /*  # of buffers for write */
    784 	__u32		   reserved[4];
    785 };
    786 
    787 /*
    788  *	I N P U T   I M A G E   C R O P P I N G
    789  */
    790 struct v4l2_cropcap {
    791 	__u32			type;	/* enum v4l2_buf_type */
    792 	struct v4l2_rect        bounds;
    793 	struct v4l2_rect        defrect;
    794 	struct v4l2_fract       pixelaspect;
    795 };
    796 
    797 struct v4l2_crop {
    798 	__u32			type;	/* enum v4l2_buf_type */
    799 	struct v4l2_rect        c;
    800 };
    801 
    802 /**
    803  * struct v4l2_selection - selection info
    804  * @type:	buffer type (do not use *_MPLANE types)
    805  * @target:	Selection target, used to choose one of possible rectangles;
    806  *		defined in v4l2-common.h; V4L2_SEL_TGT_* .
    807  * @flags:	constraints flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*.
    808  * @r:		coordinates of selection window
    809  * @reserved:	for future use, rounds structure size to 64 bytes, set to zero
    810  *
    811  * Hardware may use multiple helper windows to process a video stream.
    812  * The structure is used to exchange this selection areas between
    813  * an application and a driver.
    814  */
    815 struct v4l2_selection {
    816 	__u32			type;
    817 	__u32			target;
    818 	__u32                   flags;
    819 	struct v4l2_rect        r;
    820 	__u32                   reserved[9];
    821 };
    822 
    823 
    824 /*
    825  *      A N A L O G   V I D E O   S T A N D A R D
    826  */
    827 
    828 typedef __u64 v4l2_std_id;
    829 
    830 /* one bit for each */
    831 #define V4L2_STD_PAL_B          ((v4l2_std_id)0x00000001)
    832 #define V4L2_STD_PAL_B1         ((v4l2_std_id)0x00000002)
    833 #define V4L2_STD_PAL_G          ((v4l2_std_id)0x00000004)
    834 #define V4L2_STD_PAL_H          ((v4l2_std_id)0x00000008)
    835 #define V4L2_STD_PAL_I          ((v4l2_std_id)0x00000010)
    836 #define V4L2_STD_PAL_D          ((v4l2_std_id)0x00000020)
    837 #define V4L2_STD_PAL_D1         ((v4l2_std_id)0x00000040)
    838 #define V4L2_STD_PAL_K          ((v4l2_std_id)0x00000080)
    839 
    840 #define V4L2_STD_PAL_M          ((v4l2_std_id)0x00000100)
    841 #define V4L2_STD_PAL_N          ((v4l2_std_id)0x00000200)
    842 #define V4L2_STD_PAL_Nc         ((v4l2_std_id)0x00000400)
    843 #define V4L2_STD_PAL_60         ((v4l2_std_id)0x00000800)
    844 
    845 #define V4L2_STD_NTSC_M         ((v4l2_std_id)0x00001000)	/* BTSC */
    846 #define V4L2_STD_NTSC_M_JP      ((v4l2_std_id)0x00002000)	/* EIA-J */
    847 #define V4L2_STD_NTSC_443       ((v4l2_std_id)0x00004000)
    848 #define V4L2_STD_NTSC_M_KR      ((v4l2_std_id)0x00008000)	/* FM A2 */
    849 
    850 #define V4L2_STD_SECAM_B        ((v4l2_std_id)0x00010000)
    851 #define V4L2_STD_SECAM_D        ((v4l2_std_id)0x00020000)
    852 #define V4L2_STD_SECAM_G        ((v4l2_std_id)0x00040000)
    853 #define V4L2_STD_SECAM_H        ((v4l2_std_id)0x00080000)
    854 #define V4L2_STD_SECAM_K        ((v4l2_std_id)0x00100000)
    855 #define V4L2_STD_SECAM_K1       ((v4l2_std_id)0x00200000)
    856 #define V4L2_STD_SECAM_L        ((v4l2_std_id)0x00400000)
    857 #define V4L2_STD_SECAM_LC       ((v4l2_std_id)0x00800000)
    858 
    859 /* ATSC/HDTV */
    860 #define V4L2_STD_ATSC_8_VSB     ((v4l2_std_id)0x01000000)
    861 #define V4L2_STD_ATSC_16_VSB    ((v4l2_std_id)0x02000000)
    862 
    863 /* FIXME:
    864    Although std_id is 64 bits, there is an issue on PPC32 architecture that
    865    makes switch(__u64) to break. So, there's a hack on v4l2-common.c rounding
    866    this value to 32 bits.
    867    As, currently, the max value is for V4L2_STD_ATSC_16_VSB (30 bits wide),
    868    it should work fine. However, if needed to add more than two standards,
    869    v4l2-common.c should be fixed.
    870  */
    871 
    872 /*
    873  * Some macros to merge video standards in order to make live easier for the
    874  * drivers and V4L2 applications
    875  */
    876 
    877 /*
    878  * "Common" NTSC/M - It should be noticed that V4L2_STD_NTSC_443 is
    879  * Missing here.
    880  */
    881 #define V4L2_STD_NTSC           (V4L2_STD_NTSC_M	|\
    882 				 V4L2_STD_NTSC_M_JP     |\
    883 				 V4L2_STD_NTSC_M_KR)
    884 /* Secam macros */
    885 #define V4L2_STD_SECAM_DK      	(V4L2_STD_SECAM_D	|\
    886 				 V4L2_STD_SECAM_K	|\
    887 				 V4L2_STD_SECAM_K1)
    888 /* All Secam Standards */
    889 #define V4L2_STD_SECAM		(V4L2_STD_SECAM_B	|\
    890 				 V4L2_STD_SECAM_G	|\
    891 				 V4L2_STD_SECAM_H	|\
    892 				 V4L2_STD_SECAM_DK	|\
    893 				 V4L2_STD_SECAM_L       |\
    894 				 V4L2_STD_SECAM_LC)
    895 /* PAL macros */
    896 #define V4L2_STD_PAL_BG		(V4L2_STD_PAL_B		|\
    897 				 V4L2_STD_PAL_B1	|\
    898 				 V4L2_STD_PAL_G)
    899 #define V4L2_STD_PAL_DK		(V4L2_STD_PAL_D		|\
    900 				 V4L2_STD_PAL_D1	|\
    901 				 V4L2_STD_PAL_K)
    902 /*
    903  * "Common" PAL - This macro is there to be compatible with the old
    904  * V4L1 concept of "PAL": /BGDKHI.
    905  * Several PAL standards are missing here: /M, /N and /Nc
    906  */
    907 #define V4L2_STD_PAL		(V4L2_STD_PAL_BG	|\
    908 				 V4L2_STD_PAL_DK	|\
    909 				 V4L2_STD_PAL_H		|\
    910 				 V4L2_STD_PAL_I)
    911 /* Chroma "agnostic" standards */
    912 #define V4L2_STD_B		(V4L2_STD_PAL_B		|\
    913 				 V4L2_STD_PAL_B1	|\
    914 				 V4L2_STD_SECAM_B)
    915 #define V4L2_STD_G		(V4L2_STD_PAL_G		|\
    916 				 V4L2_STD_SECAM_G)
    917 #define V4L2_STD_H		(V4L2_STD_PAL_H		|\
    918 				 V4L2_STD_SECAM_H)
    919 #define V4L2_STD_L		(V4L2_STD_SECAM_L	|\
    920 				 V4L2_STD_SECAM_LC)
    921 #define V4L2_STD_GH		(V4L2_STD_G		|\
    922 				 V4L2_STD_H)
    923 #define V4L2_STD_DK		(V4L2_STD_PAL_DK	|\
    924 				 V4L2_STD_SECAM_DK)
    925 #define V4L2_STD_BG		(V4L2_STD_B		|\
    926 				 V4L2_STD_G)
    927 #define V4L2_STD_MN		(V4L2_STD_PAL_M		|\
    928 				 V4L2_STD_PAL_N		|\
    929 				 V4L2_STD_PAL_Nc	|\
    930 				 V4L2_STD_NTSC)
    931 
    932 /* Standards where MTS/BTSC stereo could be found */
    933 #define V4L2_STD_MTS		(V4L2_STD_NTSC_M	|\
    934 				 V4L2_STD_PAL_M		|\
    935 				 V4L2_STD_PAL_N		|\
    936 				 V4L2_STD_PAL_Nc)
    937 
    938 /* Standards for Countries with 60Hz Line frequency */
    939 #define V4L2_STD_525_60		(V4L2_STD_PAL_M		|\
    940 				 V4L2_STD_PAL_60	|\
    941 				 V4L2_STD_NTSC		|\
    942 				 V4L2_STD_NTSC_443)
    943 /* Standards for Countries with 50Hz Line frequency */
    944 #define V4L2_STD_625_50		(V4L2_STD_PAL		|\
    945 				 V4L2_STD_PAL_N		|\
    946 				 V4L2_STD_PAL_Nc	|\
    947 				 V4L2_STD_SECAM)
    948 
    949 #define V4L2_STD_ATSC           (V4L2_STD_ATSC_8_VSB    |\
    950 				 V4L2_STD_ATSC_16_VSB)
    951 /* Macros with none and all analog standards */
    952 #define V4L2_STD_UNKNOWN        0
    953 #define V4L2_STD_ALL            (V4L2_STD_525_60	|\
    954 				 V4L2_STD_625_50)
    955 
    956 struct v4l2_standard {
    957 	__u32		     index;
    958 	v4l2_std_id          id;
    959 	__u8		     name[24];
    960 	struct v4l2_fract    frameperiod; /* Frames, not fields */
    961 	__u32		     framelines;
    962 	__u32		     reserved[4];
    963 };
    964 
    965 /*
    966  *	D V 	B T	T I M I N G S
    967  */
    968 
    969 /** struct v4l2_bt_timings - BT.656/BT.1120 timing data
    970  * @width:	total width of the active video in pixels
    971  * @height:	total height of the active video in lines
    972  * @interlaced:	Interlaced or progressive
    973  * @polarities:	Positive or negative polarities
    974  * @pixelclock:	Pixel clock in HZ. Ex. 74.25MHz->74250000
    975  * @hfrontporch:Horizontal front porch in pixels
    976  * @hsync:	Horizontal Sync length in pixels
    977  * @hbackporch:	Horizontal back porch in pixels
    978  * @vfrontporch:Vertical front porch in lines
    979  * @vsync:	Vertical Sync length in lines
    980  * @vbackporch:	Vertical back porch in lines
    981  * @il_vfrontporch:Vertical front porch for the even field
    982  *		(aka field 2) of interlaced field formats
    983  * @il_vsync:	Vertical Sync length for the even field
    984  *		(aka field 2) of interlaced field formats
    985  * @il_vbackporch:Vertical back porch for the even field
    986  *		(aka field 2) of interlaced field formats
    987  * @standards:	Standards the timing belongs to
    988  * @flags:	Flags
    989  * @reserved:	Reserved fields, must be zeroed.
    990  *
    991  * A note regarding vertical interlaced timings: height refers to the total
    992  * height of the active video frame (= two fields). The blanking timings refer
    993  * to the blanking of each field. So the height of the total frame is
    994  * calculated as follows:
    995  *
    996  * tot_height = height + vfrontporch + vsync + vbackporch +
    997  *                       il_vfrontporch + il_vsync + il_vbackporch
    998  *
    999  * The active height of each field is height / 2.
   1000  */
   1001 struct v4l2_bt_timings {
   1002 	__u32	width;
   1003 	__u32	height;
   1004 	__u32	interlaced;
   1005 	__u32	polarities;
   1006 	__u64	pixelclock;
   1007 	__u32	hfrontporch;
   1008 	__u32	hsync;
   1009 	__u32	hbackporch;
   1010 	__u32	vfrontporch;
   1011 	__u32	vsync;
   1012 	__u32	vbackporch;
   1013 	__u32	il_vfrontporch;
   1014 	__u32	il_vsync;
   1015 	__u32	il_vbackporch;
   1016 	__u32	standards;
   1017 	__u32	flags;
   1018 	__u32	reserved[14];
   1019 } __attribute__ ((packed));
   1020 
   1021 /* Interlaced or progressive format */
   1022 #define	V4L2_DV_PROGRESSIVE	0
   1023 #define	V4L2_DV_INTERLACED	1
   1024 
   1025 /* Polarities. If bit is not set, it is assumed to be negative polarity */
   1026 #define V4L2_DV_VSYNC_POS_POL	0x00000001
   1027 #define V4L2_DV_HSYNC_POS_POL	0x00000002
   1028 
   1029 /* Timings standards */
   1030 #define V4L2_DV_BT_STD_CEA861	(1 << 0)  /* CEA-861 Digital TV Profile */
   1031 #define V4L2_DV_BT_STD_DMT	(1 << 1)  /* VESA Discrete Monitor Timings */
   1032 #define V4L2_DV_BT_STD_CVT	(1 << 2)  /* VESA Coordinated Video Timings */
   1033 #define V4L2_DV_BT_STD_GTF	(1 << 3)  /* VESA Generalized Timings Formula */
   1034 
   1035 /* Flags */
   1036 
   1037 /* CVT/GTF specific: timing uses reduced blanking (CVT) or the 'Secondary
   1038    GTF' curve (GTF). In both cases the horizontal and/or vertical blanking
   1039    intervals are reduced, allowing a higher resolution over the same
   1040    bandwidth. This is a read-only flag. */
   1041 #define V4L2_DV_FL_REDUCED_BLANKING		(1 << 0)
   1042 /* CEA-861 specific: set for CEA-861 formats with a framerate of a multiple
   1043    of six. These formats can be optionally played at 1 / 1.001 speed.
   1044    This is a read-only flag. */
   1045 #define V4L2_DV_FL_CAN_REDUCE_FPS		(1 << 1)
   1046 /* CEA-861 specific: only valid for video transmitters, the flag is cleared
   1047    by receivers.
   1048    If the framerate of the format is a multiple of six, then the pixelclock
   1049    used to set up the transmitter is divided by 1.001 to make it compatible
   1050    with 60 Hz based standards such as NTSC and PAL-M that use a framerate of
   1051    29.97 Hz. Otherwise this flag is cleared. If the transmitter can't generate
   1052    such frequencies, then the flag will also be cleared. */
   1053 #define V4L2_DV_FL_REDUCED_FPS			(1 << 2)
   1054 /* Specific to interlaced formats: if set, then field 1 is really one half-line
   1055    longer and field 2 is really one half-line shorter, so each field has
   1056    exactly the same number of half-lines. Whether half-lines can be detected
   1057    or used depends on the hardware. */
   1058 #define V4L2_DV_FL_HALF_LINE			(1 << 3)
   1059 
   1060 /* A few useful defines to calculate the total blanking and frame sizes */
   1061 #define V4L2_DV_BT_BLANKING_WIDTH(bt) \
   1062 	(bt->hfrontporch + bt->hsync + bt->hbackporch)
   1063 #define V4L2_DV_BT_FRAME_WIDTH(bt) \
   1064 	(bt->width + V4L2_DV_BT_BLANKING_WIDTH(bt))
   1065 #define V4L2_DV_BT_BLANKING_HEIGHT(bt) \
   1066 	(bt->vfrontporch + bt->vsync + bt->vbackporch + \
   1067 	 bt->il_vfrontporch + bt->il_vsync + bt->il_vbackporch)
   1068 #define V4L2_DV_BT_FRAME_HEIGHT(bt) \
   1069 	(bt->height + V4L2_DV_BT_BLANKING_HEIGHT(bt))
   1070 
   1071 /** struct v4l2_dv_timings - DV timings
   1072  * @type:	the type of the timings
   1073  * @bt:	BT656/1120 timings
   1074  */
   1075 struct v4l2_dv_timings {
   1076 	__u32 type;
   1077 	union {
   1078 		struct v4l2_bt_timings	bt;
   1079 		__u32	reserved[32];
   1080 	};
   1081 } __attribute__ ((packed));
   1082 
   1083 /* Values for the type field */
   1084 #define V4L2_DV_BT_656_1120	0	/* BT.656/1120 timing type */
   1085 
   1086 
   1087 /** struct v4l2_enum_dv_timings - DV timings enumeration
   1088  * @index:	enumeration index
   1089  * @reserved:	must be zeroed
   1090  * @timings:	the timings for the given index
   1091  */
   1092 struct v4l2_enum_dv_timings {
   1093 	__u32 index;
   1094 	__u32 reserved[3];
   1095 	struct v4l2_dv_timings timings;
   1096 };
   1097 
   1098 /** struct v4l2_bt_timings_cap - BT.656/BT.1120 timing capabilities
   1099  * @min_width:		width in pixels
   1100  * @max_width:		width in pixels
   1101  * @min_height:		height in lines
   1102  * @max_height:		height in lines
   1103  * @min_pixelclock:	Pixel clock in HZ. Ex. 74.25MHz->74250000
   1104  * @max_pixelclock:	Pixel clock in HZ. Ex. 74.25MHz->74250000
   1105  * @standards:		Supported standards
   1106  * @capabilities:	Supported capabilities
   1107  * @reserved:		Must be zeroed
   1108  */
   1109 struct v4l2_bt_timings_cap {
   1110 	__u32	min_width;
   1111 	__u32	max_width;
   1112 	__u32	min_height;
   1113 	__u32	max_height;
   1114 	__u64	min_pixelclock;
   1115 	__u64	max_pixelclock;
   1116 	__u32	standards;
   1117 	__u32	capabilities;
   1118 	__u32	reserved[16];
   1119 } __attribute__ ((packed));
   1120 
   1121 /* Supports interlaced formats */
   1122 #define V4L2_DV_BT_CAP_INTERLACED	(1 << 0)
   1123 /* Supports progressive formats */
   1124 #define V4L2_DV_BT_CAP_PROGRESSIVE	(1 << 1)
   1125 /* Supports CVT/GTF reduced blanking */
   1126 #define V4L2_DV_BT_CAP_REDUCED_BLANKING	(1 << 2)
   1127 /* Supports custom formats */
   1128 #define V4L2_DV_BT_CAP_CUSTOM		(1 << 3)
   1129 
   1130 /** struct v4l2_dv_timings_cap - DV timings capabilities
   1131  * @type:	the type of the timings (same as in struct v4l2_dv_timings)
   1132  * @bt:		the BT656/1120 timings capabilities
   1133  */
   1134 struct v4l2_dv_timings_cap {
   1135 	__u32 type;
   1136 	__u32 reserved[3];
   1137 	union {
   1138 		struct v4l2_bt_timings_cap bt;
   1139 		__u32 raw_data[32];
   1140 	};
   1141 };
   1142 
   1143 
   1144 /*
   1145  *	V I D E O   I N P U T S
   1146  */
   1147 struct v4l2_input {
   1148 	__u32	     index;		/*  Which input */
   1149 	__u8	     name[32];		/*  Label */
   1150 	__u32	     type;		/*  Type of input */
   1151 	__u32	     audioset;		/*  Associated audios (bitfield) */
   1152 	__u32        tuner;             /*  enum v4l2_tuner_type */
   1153 	v4l2_std_id  std;
   1154 	__u32	     status;
   1155 	__u32	     capabilities;
   1156 	__u32	     reserved[3];
   1157 };
   1158 
   1159 /*  Values for the 'type' field */
   1160 #define V4L2_INPUT_TYPE_TUNER		1
   1161 #define V4L2_INPUT_TYPE_CAMERA		2
   1162 
   1163 /* field 'status' - general */
   1164 #define V4L2_IN_ST_NO_POWER    0x00000001  /* Attached device is off */
   1165 #define V4L2_IN_ST_NO_SIGNAL   0x00000002
   1166 #define V4L2_IN_ST_NO_COLOR    0x00000004
   1167 
   1168 /* field 'status' - sensor orientation */
   1169 /* If sensor is mounted upside down set both bits */
   1170 #define V4L2_IN_ST_HFLIP       0x00000010 /* Frames are flipped horizontally */
   1171 #define V4L2_IN_ST_VFLIP       0x00000020 /* Frames are flipped vertically */
   1172 
   1173 /* field 'status' - analog */
   1174 #define V4L2_IN_ST_NO_H_LOCK   0x00000100  /* No horizontal sync lock */
   1175 #define V4L2_IN_ST_COLOR_KILL  0x00000200  /* Color killer is active */
   1176 
   1177 /* field 'status' - digital */
   1178 #define V4L2_IN_ST_NO_SYNC     0x00010000  /* No synchronization lock */
   1179 #define V4L2_IN_ST_NO_EQU      0x00020000  /* No equalizer lock */
   1180 #define V4L2_IN_ST_NO_CARRIER  0x00040000  /* Carrier recovery failed */
   1181 
   1182 /* field 'status' - VCR and set-top box */
   1183 #define V4L2_IN_ST_MACROVISION 0x01000000  /* Macrovision detected */
   1184 #define V4L2_IN_ST_NO_ACCESS   0x02000000  /* Conditional access denied */
   1185 #define V4L2_IN_ST_VTR         0x04000000  /* VTR time constant */
   1186 
   1187 /* capabilities flags */
   1188 #define V4L2_IN_CAP_DV_TIMINGS		0x00000002 /* Supports S_DV_TIMINGS */
   1189 #define V4L2_IN_CAP_CUSTOM_TIMINGS	V4L2_IN_CAP_DV_TIMINGS /* For compatibility */
   1190 #define V4L2_IN_CAP_STD			0x00000004 /* Supports S_STD */
   1191 
   1192 /*
   1193  *	V I D E O   O U T P U T S
   1194  */
   1195 struct v4l2_output {
   1196 	__u32	     index;		/*  Which output */
   1197 	__u8	     name[32];		/*  Label */
   1198 	__u32	     type;		/*  Type of output */
   1199 	__u32	     audioset;		/*  Associated audios (bitfield) */
   1200 	__u32	     modulator;         /*  Associated modulator */
   1201 	v4l2_std_id  std;
   1202 	__u32	     capabilities;
   1203 	__u32	     reserved[3];
   1204 };
   1205 /*  Values for the 'type' field */
   1206 #define V4L2_OUTPUT_TYPE_MODULATOR		1
   1207 #define V4L2_OUTPUT_TYPE_ANALOG			2
   1208 #define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY	3
   1209 
   1210 /* capabilities flags */
   1211 #define V4L2_OUT_CAP_DV_TIMINGS		0x00000002 /* Supports S_DV_TIMINGS */
   1212 #define V4L2_OUT_CAP_CUSTOM_TIMINGS	V4L2_OUT_CAP_DV_TIMINGS /* For compatibility */
   1213 #define V4L2_OUT_CAP_STD		0x00000004 /* Supports S_STD */
   1214 
   1215 /*
   1216  *	C O N T R O L S
   1217  */
   1218 struct v4l2_control {
   1219 	__u32		     id;
   1220 	__s32		     value;
   1221 };
   1222 
   1223 struct v4l2_ext_control {
   1224 	__u32 id;
   1225 	__u32 size;
   1226 	__u32 reserved2[1];
   1227 	union {
   1228 		__s32 value;
   1229 		__s64 value64;
   1230 		char *string;
   1231 	};
   1232 } __attribute__ ((packed));
   1233 
   1234 struct v4l2_ext_controls {
   1235 	__u32 ctrl_class;
   1236 	__u32 count;
   1237 	__u32 error_idx;
   1238 	__u32 reserved[2];
   1239 	struct v4l2_ext_control *controls;
   1240 };
   1241 
   1242 #define V4L2_CTRL_ID_MASK      	  (0x0fffffff)
   1243 #define V4L2_CTRL_ID2CLASS(id)    ((id) & 0x0fff0000UL)
   1244 #define V4L2_CTRL_DRIVER_PRIV(id) (((id) & 0xffff) >= 0x1000)
   1245 
   1246 enum v4l2_ctrl_type {
   1247 	V4L2_CTRL_TYPE_INTEGER	     = 1,
   1248 	V4L2_CTRL_TYPE_BOOLEAN	     = 2,
   1249 	V4L2_CTRL_TYPE_MENU	     = 3,
   1250 	V4L2_CTRL_TYPE_BUTTON	     = 4,
   1251 	V4L2_CTRL_TYPE_INTEGER64     = 5,
   1252 	V4L2_CTRL_TYPE_CTRL_CLASS    = 6,
   1253 	V4L2_CTRL_TYPE_STRING        = 7,
   1254 	V4L2_CTRL_TYPE_BITMASK       = 8,
   1255 	V4L2_CTRL_TYPE_INTEGER_MENU = 9,
   1256 };
   1257 
   1258 /*  Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
   1259 struct v4l2_queryctrl {
   1260 	__u32		     id;
   1261 	__u32		     type;	/* enum v4l2_ctrl_type */
   1262 	__u8		     name[32];	/* Whatever */
   1263 	__s32		     minimum;	/* Note signedness */
   1264 	__s32		     maximum;
   1265 	__s32		     step;
   1266 	__s32		     default_value;
   1267 	__u32                flags;
   1268 	__u32		     reserved[2];
   1269 };
   1270 
   1271 /*  Used in the VIDIOC_QUERYMENU ioctl for querying menu items */
   1272 struct v4l2_querymenu {
   1273 	__u32		id;
   1274 	__u32		index;
   1275 	union {
   1276 		__u8	name[32];	/* Whatever */
   1277 		__s64	value;
   1278 	};
   1279 	__u32		reserved;
   1280 } __attribute__ ((packed));
   1281 
   1282 /*  Control flags  */
   1283 #define V4L2_CTRL_FLAG_DISABLED		0x0001
   1284 #define V4L2_CTRL_FLAG_GRABBED		0x0002
   1285 #define V4L2_CTRL_FLAG_READ_ONLY 	0x0004
   1286 #define V4L2_CTRL_FLAG_UPDATE 		0x0008
   1287 #define V4L2_CTRL_FLAG_INACTIVE 	0x0010
   1288 #define V4L2_CTRL_FLAG_SLIDER 		0x0020
   1289 #define V4L2_CTRL_FLAG_WRITE_ONLY 	0x0040
   1290 #define V4L2_CTRL_FLAG_VOLATILE		0x0080
   1291 
   1292 /*  Query flag, to be ORed with the control ID */
   1293 #define V4L2_CTRL_FLAG_NEXT_CTRL	0x80000000
   1294 
   1295 /*  User-class control IDs defined by V4L2 */
   1296 #define V4L2_CID_MAX_CTRLS		1024
   1297 /*  IDs reserved for driver specific controls */
   1298 #define V4L2_CID_PRIVATE_BASE		0x08000000
   1299 
   1300 
   1301 /*
   1302  *	T U N I N G
   1303  */
   1304 struct v4l2_tuner {
   1305 	__u32                   index;
   1306 	__u8			name[32];
   1307 	__u32			type;	/* enum v4l2_tuner_type */
   1308 	__u32			capability;
   1309 	__u32			rangelow;
   1310 	__u32			rangehigh;
   1311 	__u32			rxsubchans;
   1312 	__u32			audmode;
   1313 	__s32			signal;
   1314 	__s32			afc;
   1315 	__u32			reserved[4];
   1316 };
   1317 
   1318 struct v4l2_modulator {
   1319 	__u32			index;
   1320 	__u8			name[32];
   1321 	__u32			capability;
   1322 	__u32			rangelow;
   1323 	__u32			rangehigh;
   1324 	__u32			txsubchans;
   1325 	__u32			reserved[4];
   1326 };
   1327 
   1328 /*  Flags for the 'capability' field */
   1329 #define V4L2_TUNER_CAP_LOW		0x0001
   1330 #define V4L2_TUNER_CAP_NORM		0x0002
   1331 #define V4L2_TUNER_CAP_HWSEEK_BOUNDED	0x0004
   1332 #define V4L2_TUNER_CAP_HWSEEK_WRAP	0x0008
   1333 #define V4L2_TUNER_CAP_STEREO		0x0010
   1334 #define V4L2_TUNER_CAP_LANG2		0x0020
   1335 #define V4L2_TUNER_CAP_SAP		0x0020
   1336 #define V4L2_TUNER_CAP_LANG1		0x0040
   1337 #define V4L2_TUNER_CAP_RDS		0x0080
   1338 #define V4L2_TUNER_CAP_RDS_BLOCK_IO	0x0100
   1339 #define V4L2_TUNER_CAP_RDS_CONTROLS	0x0200
   1340 #define V4L2_TUNER_CAP_FREQ_BANDS	0x0400
   1341 #define V4L2_TUNER_CAP_HWSEEK_PROG_LIM	0x0800
   1342 
   1343 /*  Flags for the 'rxsubchans' field */
   1344 #define V4L2_TUNER_SUB_MONO		0x0001
   1345 #define V4L2_TUNER_SUB_STEREO		0x0002
   1346 #define V4L2_TUNER_SUB_LANG2		0x0004
   1347 #define V4L2_TUNER_SUB_SAP		0x0004
   1348 #define V4L2_TUNER_SUB_LANG1		0x0008
   1349 #define V4L2_TUNER_SUB_RDS		0x0010
   1350 
   1351 /*  Values for the 'audmode' field */
   1352 #define V4L2_TUNER_MODE_MONO		0x0000
   1353 #define V4L2_TUNER_MODE_STEREO		0x0001
   1354 #define V4L2_TUNER_MODE_LANG2		0x0002
   1355 #define V4L2_TUNER_MODE_SAP		0x0002
   1356 #define V4L2_TUNER_MODE_LANG1		0x0003
   1357 #define V4L2_TUNER_MODE_LANG1_LANG2	0x0004
   1358 
   1359 struct v4l2_frequency {
   1360 	__u32	tuner;
   1361 	__u32	type;	/* enum v4l2_tuner_type */
   1362 	__u32	frequency;
   1363 	__u32	reserved[8];
   1364 };
   1365 
   1366 #define V4L2_BAND_MODULATION_VSB	(1 << 1)
   1367 #define V4L2_BAND_MODULATION_FM		(1 << 2)
   1368 #define V4L2_BAND_MODULATION_AM		(1 << 3)
   1369 
   1370 struct v4l2_frequency_band {
   1371 	__u32	tuner;
   1372 	__u32	type;	/* enum v4l2_tuner_type */
   1373 	__u32	index;
   1374 	__u32	capability;
   1375 	__u32	rangelow;
   1376 	__u32	rangehigh;
   1377 	__u32	modulation;
   1378 	__u32	reserved[9];
   1379 };
   1380 
   1381 struct v4l2_hw_freq_seek {
   1382 	__u32	tuner;
   1383 	__u32	type;	/* enum v4l2_tuner_type */
   1384 	__u32	seek_upward;
   1385 	__u32	wrap_around;
   1386 	__u32	spacing;
   1387 	__u32	rangelow;
   1388 	__u32	rangehigh;
   1389 	__u32	reserved[5];
   1390 };
   1391 
   1392 /*
   1393  *	R D S
   1394  */
   1395 
   1396 struct v4l2_rds_data {
   1397 	__u8 	lsb;
   1398 	__u8 	msb;
   1399 	__u8 	block;
   1400 } __attribute__ ((packed));
   1401 
   1402 #define V4L2_RDS_BLOCK_MSK 	 0x7
   1403 #define V4L2_RDS_BLOCK_A 	 0
   1404 #define V4L2_RDS_BLOCK_B 	 1
   1405 #define V4L2_RDS_BLOCK_C 	 2
   1406 #define V4L2_RDS_BLOCK_D 	 3
   1407 #define V4L2_RDS_BLOCK_C_ALT 	 4
   1408 #define V4L2_RDS_BLOCK_INVALID 	 7
   1409 
   1410 #define V4L2_RDS_BLOCK_CORRECTED 0x40
   1411 #define V4L2_RDS_BLOCK_ERROR 	 0x80
   1412 
   1413 /*
   1414  *	A U D I O
   1415  */
   1416 struct v4l2_audio {
   1417 	__u32	index;
   1418 	__u8	name[32];
   1419 	__u32	capability;
   1420 	__u32	mode;
   1421 	__u32	reserved[2];
   1422 };
   1423 
   1424 /*  Flags for the 'capability' field */
   1425 #define V4L2_AUDCAP_STEREO		0x00001
   1426 #define V4L2_AUDCAP_AVL			0x00002
   1427 
   1428 /*  Flags for the 'mode' field */
   1429 #define V4L2_AUDMODE_AVL		0x00001
   1430 
   1431 struct v4l2_audioout {
   1432 	__u32	index;
   1433 	__u8	name[32];
   1434 	__u32	capability;
   1435 	__u32	mode;
   1436 	__u32	reserved[2];
   1437 };
   1438 
   1439 /*
   1440  *	M P E G   S E R V I C E S
   1441  *
   1442  *	NOTE: EXPERIMENTAL API
   1443  */
   1444 #if 1
   1445 #define V4L2_ENC_IDX_FRAME_I    (0)
   1446 #define V4L2_ENC_IDX_FRAME_P    (1)
   1447 #define V4L2_ENC_IDX_FRAME_B    (2)
   1448 #define V4L2_ENC_IDX_FRAME_MASK (0xf)
   1449 
   1450 struct v4l2_enc_idx_entry {
   1451 	__u64 offset;
   1452 	__u64 pts;
   1453 	__u32 length;
   1454 	__u32 flags;
   1455 	__u32 reserved[2];
   1456 };
   1457 
   1458 #define V4L2_ENC_IDX_ENTRIES (64)
   1459 struct v4l2_enc_idx {
   1460 	__u32 entries;
   1461 	__u32 entries_cap;
   1462 	__u32 reserved[4];
   1463 	struct v4l2_enc_idx_entry entry[V4L2_ENC_IDX_ENTRIES];
   1464 };
   1465 
   1466 
   1467 #define V4L2_ENC_CMD_START      (0)
   1468 #define V4L2_ENC_CMD_STOP       (1)
   1469 #define V4L2_ENC_CMD_PAUSE      (2)
   1470 #define V4L2_ENC_CMD_RESUME     (3)
   1471 
   1472 /* Flags for V4L2_ENC_CMD_STOP */
   1473 #define V4L2_ENC_CMD_STOP_AT_GOP_END    (1 << 0)
   1474 
   1475 struct v4l2_encoder_cmd {
   1476 	__u32 cmd;
   1477 	__u32 flags;
   1478 	union {
   1479 		struct {
   1480 			__u32 data[8];
   1481 		} raw;
   1482 	};
   1483 };
   1484 
   1485 /* Decoder commands */
   1486 #define V4L2_DEC_CMD_START       (0)
   1487 #define V4L2_DEC_CMD_STOP        (1)
   1488 #define V4L2_DEC_CMD_PAUSE       (2)
   1489 #define V4L2_DEC_CMD_RESUME      (3)
   1490 
   1491 /* Flags for V4L2_DEC_CMD_START */
   1492 #define V4L2_DEC_CMD_START_MUTE_AUDIO	(1 << 0)
   1493 
   1494 /* Flags for V4L2_DEC_CMD_PAUSE */
   1495 #define V4L2_DEC_CMD_PAUSE_TO_BLACK	(1 << 0)
   1496 
   1497 /* Flags for V4L2_DEC_CMD_STOP */
   1498 #define V4L2_DEC_CMD_STOP_TO_BLACK	(1 << 0)
   1499 #define V4L2_DEC_CMD_STOP_IMMEDIATELY	(1 << 1)
   1500 
   1501 /* Play format requirements (returned by the driver): */
   1502 
   1503 /* The decoder has no special format requirements */
   1504 #define V4L2_DEC_START_FMT_NONE		(0)
   1505 /* The decoder requires full GOPs */
   1506 #define V4L2_DEC_START_FMT_GOP		(1)
   1507 
   1508 /* The structure must be zeroed before use by the application
   1509    This ensures it can be extended safely in the future. */
   1510 struct v4l2_decoder_cmd {
   1511 	__u32 cmd;
   1512 	__u32 flags;
   1513 	union {
   1514 		struct {
   1515 			__u64 pts;
   1516 		} stop;
   1517 
   1518 		struct {
   1519 			/* 0 or 1000 specifies normal speed,
   1520 			   1 specifies forward single stepping,
   1521 			   -1 specifies backward single stepping,
   1522 			   >1: playback at speed/1000 of the normal speed,
   1523 			   <-1: reverse playback at (-speed/1000) of the normal speed. */
   1524 			__s32 speed;
   1525 			__u32 format;
   1526 		} start;
   1527 
   1528 		struct {
   1529 			__u32 data[16];
   1530 		} raw;
   1531 	};
   1532 };
   1533 #endif
   1534 
   1535 
   1536 /*
   1537  *	D A T A   S E R V I C E S   ( V B I )
   1538  *
   1539  *	Data services API by Michael Schimek
   1540  */
   1541 
   1542 /* Raw VBI */
   1543 struct v4l2_vbi_format {
   1544 	__u32	sampling_rate;		/* in 1 Hz */
   1545 	__u32	offset;
   1546 	__u32	samples_per_line;
   1547 	__u32	sample_format;		/* V4L2_PIX_FMT_* */
   1548 	__s32	start[2];
   1549 	__u32	count[2];
   1550 	__u32	flags;			/* V4L2_VBI_* */
   1551 	__u32	reserved[2];		/* must be zero */
   1552 };
   1553 
   1554 /*  VBI flags  */
   1555 #define V4L2_VBI_UNSYNC		(1 << 0)
   1556 #define V4L2_VBI_INTERLACED	(1 << 1)
   1557 
   1558 /* Sliced VBI
   1559  *
   1560  *    This implements is a proposal V4L2 API to allow SLICED VBI
   1561  * required for some hardware encoders. It should change without
   1562  * notice in the definitive implementation.
   1563  */
   1564 
   1565 struct v4l2_sliced_vbi_format {
   1566 	__u16   service_set;
   1567 	/* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
   1568 	   service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
   1569 				 (equals frame lines 313-336 for 625 line video
   1570 				  standards, 263-286 for 525 line standards) */
   1571 	__u16   service_lines[2][24];
   1572 	__u32   io_size;
   1573 	__u32   reserved[2];            /* must be zero */
   1574 };
   1575 
   1576 /* Teletext World System Teletext
   1577    (WST), defined on ITU-R BT.653-2 */
   1578 #define V4L2_SLICED_TELETEXT_B          (0x0001)
   1579 /* Video Program System, defined on ETS 300 231*/
   1580 #define V4L2_SLICED_VPS                 (0x0400)
   1581 /* Closed Caption, defined on EIA-608 */
   1582 #define V4L2_SLICED_CAPTION_525         (0x1000)
   1583 /* Wide Screen System, defined on ITU-R BT1119.1 */
   1584 #define V4L2_SLICED_WSS_625             (0x4000)
   1585 
   1586 #define V4L2_SLICED_VBI_525             (V4L2_SLICED_CAPTION_525)
   1587 #define V4L2_SLICED_VBI_625             (V4L2_SLICED_TELETEXT_B | V4L2_SLICED_VPS | V4L2_SLICED_WSS_625)
   1588 
   1589 struct v4l2_sliced_vbi_cap {
   1590 	__u16   service_set;
   1591 	/* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
   1592 	   service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
   1593 				 (equals frame lines 313-336 for 625 line video
   1594 				  standards, 263-286 for 525 line standards) */
   1595 	__u16   service_lines[2][24];
   1596 	__u32	type;		/* enum v4l2_buf_type */
   1597 	__u32   reserved[3];    /* must be 0 */
   1598 };
   1599 
   1600 struct v4l2_sliced_vbi_data {
   1601 	__u32   id;
   1602 	__u32   field;          /* 0: first field, 1: second field */
   1603 	__u32   line;           /* 1-23 */
   1604 	__u32   reserved;       /* must be 0 */
   1605 	__u8    data[48];
   1606 };
   1607 
   1608 /*
   1609  * Sliced VBI data inserted into MPEG Streams
   1610  */
   1611 
   1612 /*
   1613  * V4L2_MPEG_STREAM_VBI_FMT_IVTV:
   1614  *
   1615  * Structure of payload contained in an MPEG 2 Private Stream 1 PES Packet in an
   1616  * MPEG-2 Program Pack that contains V4L2_MPEG_STREAM_VBI_FMT_IVTV Sliced VBI
   1617  * data
   1618  *
   1619  * Note, the MPEG-2 Program Pack and Private Stream 1 PES packet header
   1620  * definitions are not included here.  See the MPEG-2 specifications for details
   1621  * on these headers.
   1622  */
   1623 
   1624 /* Line type IDs */
   1625 #define V4L2_MPEG_VBI_IVTV_TELETEXT_B     (1)
   1626 #define V4L2_MPEG_VBI_IVTV_CAPTION_525    (4)
   1627 #define V4L2_MPEG_VBI_IVTV_WSS_625        (5)
   1628 #define V4L2_MPEG_VBI_IVTV_VPS            (7)
   1629 
   1630 struct v4l2_mpeg_vbi_itv0_line {
   1631 	__u8 id;	/* One of V4L2_MPEG_VBI_IVTV_* above */
   1632 	__u8 data[42];	/* Sliced VBI data for the line */
   1633 } __attribute__ ((packed));
   1634 
   1635 struct v4l2_mpeg_vbi_itv0 {
   1636 	__le32 linemask[2]; /* Bitmasks of VBI service lines present */
   1637 	struct v4l2_mpeg_vbi_itv0_line line[35];
   1638 } __attribute__ ((packed));
   1639 
   1640 struct v4l2_mpeg_vbi_ITV0 {
   1641 	struct v4l2_mpeg_vbi_itv0_line line[36];
   1642 } __attribute__ ((packed));
   1643 
   1644 #define V4L2_MPEG_VBI_IVTV_MAGIC0	"itv0"
   1645 #define V4L2_MPEG_VBI_IVTV_MAGIC1	"ITV0"
   1646 
   1647 struct v4l2_mpeg_vbi_fmt_ivtv {
   1648 	__u8 magic[4];
   1649 	union {
   1650 		struct v4l2_mpeg_vbi_itv0 itv0;
   1651 		struct v4l2_mpeg_vbi_ITV0 ITV0;
   1652 	};
   1653 } __attribute__ ((packed));
   1654 
   1655 /*
   1656  *	A G G R E G A T E   S T R U C T U R E S
   1657  */
   1658 
   1659 /**
   1660  * struct v4l2_plane_pix_format - additional, per-plane format definition
   1661  * @sizeimage:		maximum size in bytes required for data, for which
   1662  *			this plane will be used
   1663  * @bytesperline:	distance in bytes between the leftmost pixels in two
   1664  *			adjacent lines
   1665  */
   1666 struct v4l2_plane_pix_format {
   1667 	__u32		sizeimage;
   1668 	__u16		bytesperline;
   1669 	__u16		reserved[7];
   1670 } __attribute__ ((packed));
   1671 
   1672 /**
   1673  * struct v4l2_pix_format_mplane - multiplanar format definition
   1674  * @width:		image width in pixels
   1675  * @height:		image height in pixels
   1676  * @pixelformat:	little endian four character code (fourcc)
   1677  * @field:		enum v4l2_field; field order (for interlaced video)
   1678  * @colorspace:		enum v4l2_colorspace; supplemental to pixelformat
   1679  * @plane_fmt:		per-plane information
   1680  * @num_planes:		number of planes for this format
   1681  */
   1682 struct v4l2_pix_format_mplane {
   1683 	__u32				width;
   1684 	__u32				height;
   1685 	__u32				pixelformat;
   1686 	__u32				field;
   1687 	__u32				colorspace;
   1688 
   1689 	struct v4l2_plane_pix_format	plane_fmt[VIDEO_MAX_PLANES];
   1690 	__u8				num_planes;
   1691 	__u8				reserved[11];
   1692 } __attribute__ ((packed));
   1693 
   1694 /**
   1695  * struct v4l2_format - stream data format
   1696  * @type:	enum v4l2_buf_type; type of the data stream
   1697  * @pix:	definition of an image format
   1698  * @pix_mp:	definition of a multiplanar image format
   1699  * @win:	definition of an overlaid image
   1700  * @vbi:	raw VBI capture or output parameters
   1701  * @sliced:	sliced VBI capture or output parameters
   1702  * @raw_data:	placeholder for future extensions and custom formats
   1703  */
   1704 struct v4l2_format {
   1705 	__u32	 type;
   1706 	union {
   1707 		struct v4l2_pix_format		pix;     /* V4L2_BUF_TYPE_VIDEO_CAPTURE */
   1708 		struct v4l2_pix_format_mplane	pix_mp;  /* V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE */
   1709 		struct v4l2_window		win;     /* V4L2_BUF_TYPE_VIDEO_OVERLAY */
   1710 		struct v4l2_vbi_format		vbi;     /* V4L2_BUF_TYPE_VBI_CAPTURE */
   1711 		struct v4l2_sliced_vbi_format	sliced;  /* V4L2_BUF_TYPE_SLICED_VBI_CAPTURE */
   1712 		__u8	raw_data[200];                   /* user-defined */
   1713 	} fmt;
   1714 };
   1715 
   1716 /*	Stream type-dependent parameters
   1717  */
   1718 struct v4l2_streamparm {
   1719 	__u32	 type;			/* enum v4l2_buf_type */
   1720 	union {
   1721 		struct v4l2_captureparm	capture;
   1722 		struct v4l2_outputparm	output;
   1723 		__u8	raw_data[200];  /* user-defined */
   1724 	} parm;
   1725 };
   1726 
   1727 /*
   1728  *	E V E N T S
   1729  */
   1730 
   1731 #define V4L2_EVENT_ALL				0
   1732 #define V4L2_EVENT_VSYNC			1
   1733 #define V4L2_EVENT_EOS				2
   1734 #define V4L2_EVENT_CTRL				3
   1735 #define V4L2_EVENT_FRAME_SYNC			4
   1736 #define V4L2_EVENT_PRIVATE_START		0x08000000
   1737 
   1738 /* Payload for V4L2_EVENT_VSYNC */
   1739 struct v4l2_event_vsync {
   1740 	/* Can be V4L2_FIELD_ANY, _NONE, _TOP or _BOTTOM */
   1741 	__u8 field;
   1742 } __attribute__ ((packed));
   1743 
   1744 /* Payload for V4L2_EVENT_CTRL */
   1745 #define V4L2_EVENT_CTRL_CH_VALUE		(1 << 0)
   1746 #define V4L2_EVENT_CTRL_CH_FLAGS		(1 << 1)
   1747 #define V4L2_EVENT_CTRL_CH_RANGE		(1 << 2)
   1748 
   1749 struct v4l2_event_ctrl {
   1750 	__u32 changes;
   1751 	__u32 type;
   1752 	union {
   1753 		__s32 value;
   1754 		__s64 value64;
   1755 	};
   1756 	__u32 flags;
   1757 	__s32 minimum;
   1758 	__s32 maximum;
   1759 	__s32 step;
   1760 	__s32 default_value;
   1761 };
   1762 
   1763 struct v4l2_event_frame_sync {
   1764 	__u32 frame_sequence;
   1765 };
   1766 
   1767 struct v4l2_event {
   1768 	__u32				type;
   1769 	union {
   1770 		struct v4l2_event_vsync		vsync;
   1771 		struct v4l2_event_ctrl		ctrl;
   1772 		struct v4l2_event_frame_sync	frame_sync;
   1773 		__u8				data[64];
   1774 	} u;
   1775 	__u32				pending;
   1776 	__u32				sequence;
   1777 	struct timespec			timestamp;
   1778 	__u32				id;
   1779 	__u32				reserved[8];
   1780 };
   1781 
   1782 #define V4L2_EVENT_SUB_FL_SEND_INITIAL		(1 << 0)
   1783 #define V4L2_EVENT_SUB_FL_ALLOW_FEEDBACK	(1 << 1)
   1784 
   1785 struct v4l2_event_subscription {
   1786 	__u32				type;
   1787 	__u32				id;
   1788 	__u32				flags;
   1789 	__u32				reserved[5];
   1790 };
   1791 
   1792 /*
   1793  *	A D V A N C E D   D E B U G G I N G
   1794  *
   1795  *	NOTE: EXPERIMENTAL API, NEVER RELY ON THIS IN APPLICATIONS!
   1796  *	FOR DEBUGGING, TESTING AND INTERNAL USE ONLY!
   1797  */
   1798 
   1799 /* VIDIOC_DBG_G_REGISTER and VIDIOC_DBG_S_REGISTER */
   1800 
   1801 #define V4L2_CHIP_MATCH_BRIDGE      0  /* Match against chip ID on the bridge (0 for the bridge) */
   1802 #define V4L2_CHIP_MATCH_SUBDEV      4  /* Match against subdev index */
   1803 
   1804 /* The following four defines are no longer in use */
   1805 #define V4L2_CHIP_MATCH_HOST V4L2_CHIP_MATCH_BRIDGE
   1806 #define V4L2_CHIP_MATCH_I2C_DRIVER  1  /* Match against I2C driver name */
   1807 #define V4L2_CHIP_MATCH_I2C_ADDR    2  /* Match against I2C 7-bit address */
   1808 #define V4L2_CHIP_MATCH_AC97        3  /* Match against ancillary AC97 chip */
   1809 
   1810 struct v4l2_dbg_match {
   1811 	__u32 type; /* Match type */
   1812 	union {     /* Match this chip, meaning determined by type */
   1813 		__u32 addr;
   1814 		char name[32];
   1815 	};
   1816 } __attribute__ ((packed));
   1817 
   1818 struct v4l2_dbg_register {
   1819 	struct v4l2_dbg_match match;
   1820 	__u32 size;	/* register size in bytes */
   1821 	__u64 reg;
   1822 	__u64 val;
   1823 } __attribute__ ((packed));
   1824 
   1825 #define V4L2_CHIP_FL_READABLE (1 << 0)
   1826 #define V4L2_CHIP_FL_WRITABLE (1 << 1)
   1827 
   1828 /* VIDIOC_DBG_G_CHIP_INFO */
   1829 struct v4l2_dbg_chip_info {
   1830 	struct v4l2_dbg_match match;
   1831 	char name[32];
   1832 	__u32 flags;
   1833 	__u32 reserved[32];
   1834 } __attribute__ ((packed));
   1835 
   1836 /**
   1837  * struct v4l2_create_buffers - VIDIOC_CREATE_BUFS argument
   1838  * @index:	on return, index of the first created buffer
   1839  * @count:	entry: number of requested buffers,
   1840  *		return: number of created buffers
   1841  * @memory:	enum v4l2_memory; buffer memory type
   1842  * @format:	frame format, for which buffers are requested
   1843  * @reserved:	future extensions
   1844  */
   1845 struct v4l2_create_buffers {
   1846 	__u32			index;
   1847 	__u32			count;
   1848 	__u32			memory;
   1849 	struct v4l2_format	format;
   1850 	__u32			reserved[8];
   1851 };
   1852 
   1853 /*
   1854  *	I O C T L   C O D E S   F O R   V I D E O   D E V I C E S
   1855  *
   1856  */
   1857 #define VIDIOC_QUERYCAP		 _IOR('V',  0, struct v4l2_capability)
   1858 #define VIDIOC_RESERVED		  _IO('V',  1)
   1859 #define VIDIOC_ENUM_FMT         _IOWR('V',  2, struct v4l2_fmtdesc)
   1860 #define VIDIOC_G_FMT		_IOWR('V',  4, struct v4l2_format)
   1861 #define VIDIOC_S_FMT		_IOWR('V',  5, struct v4l2_format)
   1862 #define VIDIOC_REQBUFS		_IOWR('V',  8, struct v4l2_requestbuffers)
   1863 #define VIDIOC_QUERYBUF		_IOWR('V',  9, struct v4l2_buffer)
   1864 #define VIDIOC_G_FBUF		 _IOR('V', 10, struct v4l2_framebuffer)
   1865 #define VIDIOC_S_FBUF		 _IOW('V', 11, struct v4l2_framebuffer)
   1866 #define VIDIOC_OVERLAY		 _IOW('V', 14, int)
   1867 #define VIDIOC_QBUF		_IOWR('V', 15, struct v4l2_buffer)
   1868 #define VIDIOC_EXPBUF		_IOWR('V', 16, struct v4l2_exportbuffer)
   1869 #define VIDIOC_DQBUF		_IOWR('V', 17, struct v4l2_buffer)
   1870 #define VIDIOC_STREAMON		 _IOW('V', 18, int)
   1871 #define VIDIOC_STREAMOFF	 _IOW('V', 19, int)
   1872 #define VIDIOC_G_PARM		_IOWR('V', 21, struct v4l2_streamparm)
   1873 #define VIDIOC_S_PARM		_IOWR('V', 22, struct v4l2_streamparm)
   1874 #define VIDIOC_G_STD		 _IOR('V', 23, v4l2_std_id)
   1875 #define VIDIOC_S_STD		 _IOW('V', 24, v4l2_std_id)
   1876 #define VIDIOC_ENUMSTD		_IOWR('V', 25, struct v4l2_standard)
   1877 #define VIDIOC_ENUMINPUT	_IOWR('V', 26, struct v4l2_input)
   1878 #define VIDIOC_G_CTRL		_IOWR('V', 27, struct v4l2_control)
   1879 #define VIDIOC_S_CTRL		_IOWR('V', 28, struct v4l2_control)
   1880 #define VIDIOC_G_TUNER		_IOWR('V', 29, struct v4l2_tuner)
   1881 #define VIDIOC_S_TUNER		 _IOW('V', 30, struct v4l2_tuner)
   1882 #define VIDIOC_G_AUDIO		 _IOR('V', 33, struct v4l2_audio)
   1883 #define VIDIOC_S_AUDIO		 _IOW('V', 34, struct v4l2_audio)
   1884 #define VIDIOC_QUERYCTRL	_IOWR('V', 36, struct v4l2_queryctrl)
   1885 #define VIDIOC_QUERYMENU	_IOWR('V', 37, struct v4l2_querymenu)
   1886 #define VIDIOC_G_INPUT		 _IOR('V', 38, int)
   1887 #define VIDIOC_S_INPUT		_IOWR('V', 39, int)
   1888 #define VIDIOC_G_OUTPUT		 _IOR('V', 46, int)
   1889 #define VIDIOC_S_OUTPUT		_IOWR('V', 47, int)
   1890 #define VIDIOC_ENUMOUTPUT	_IOWR('V', 48, struct v4l2_output)
   1891 #define VIDIOC_G_AUDOUT		 _IOR('V', 49, struct v4l2_audioout)
   1892 #define VIDIOC_S_AUDOUT		 _IOW('V', 50, struct v4l2_audioout)
   1893 #define VIDIOC_G_MODULATOR	_IOWR('V', 54, struct v4l2_modulator)
   1894 #define VIDIOC_S_MODULATOR	 _IOW('V', 55, struct v4l2_modulator)
   1895 #define VIDIOC_G_FREQUENCY	_IOWR('V', 56, struct v4l2_frequency)
   1896 #define VIDIOC_S_FREQUENCY	 _IOW('V', 57, struct v4l2_frequency)
   1897 #define VIDIOC_CROPCAP		_IOWR('V', 58, struct v4l2_cropcap)
   1898 #define VIDIOC_G_CROP		_IOWR('V', 59, struct v4l2_crop)
   1899 #define VIDIOC_S_CROP		 _IOW('V', 60, struct v4l2_crop)
   1900 #define VIDIOC_G_JPEGCOMP	 _IOR('V', 61, struct v4l2_jpegcompression)
   1901 #define VIDIOC_S_JPEGCOMP	 _IOW('V', 62, struct v4l2_jpegcompression)
   1902 #define VIDIOC_QUERYSTD      	 _IOR('V', 63, v4l2_std_id)
   1903 #define VIDIOC_TRY_FMT      	_IOWR('V', 64, struct v4l2_format)
   1904 #define VIDIOC_ENUMAUDIO	_IOWR('V', 65, struct v4l2_audio)
   1905 #define VIDIOC_ENUMAUDOUT	_IOWR('V', 66, struct v4l2_audioout)
   1906 #define VIDIOC_G_PRIORITY	 _IOR('V', 67, __u32) /* enum v4l2_priority */
   1907 #define VIDIOC_S_PRIORITY	 _IOW('V', 68, __u32) /* enum v4l2_priority */
   1908 #define VIDIOC_G_SLICED_VBI_CAP _IOWR('V', 69, struct v4l2_sliced_vbi_cap)
   1909 #define VIDIOC_LOG_STATUS         _IO('V', 70)
   1910 #define VIDIOC_G_EXT_CTRLS	_IOWR('V', 71, struct v4l2_ext_controls)
   1911 #define VIDIOC_S_EXT_CTRLS	_IOWR('V', 72, struct v4l2_ext_controls)
   1912 #define VIDIOC_TRY_EXT_CTRLS	_IOWR('V', 73, struct v4l2_ext_controls)
   1913 #define VIDIOC_ENUM_FRAMESIZES	_IOWR('V', 74, struct v4l2_frmsizeenum)
   1914 #define VIDIOC_ENUM_FRAMEINTERVALS _IOWR('V', 75, struct v4l2_frmivalenum)
   1915 #define VIDIOC_G_ENC_INDEX       _IOR('V', 76, struct v4l2_enc_idx)
   1916 #define VIDIOC_ENCODER_CMD      _IOWR('V', 77, struct v4l2_encoder_cmd)
   1917 #define VIDIOC_TRY_ENCODER_CMD  _IOWR('V', 78, struct v4l2_encoder_cmd)
   1918 
   1919 /* Experimental, meant for debugging, testing and internal use.
   1920    Only implemented if CONFIG_VIDEO_ADV_DEBUG is defined.
   1921    You must be root to use these ioctls. Never use these in applications! */
   1922 #define	VIDIOC_DBG_S_REGISTER 	 _IOW('V', 79, struct v4l2_dbg_register)
   1923 #define	VIDIOC_DBG_G_REGISTER 	_IOWR('V', 80, struct v4l2_dbg_register)
   1924 
   1925 #define VIDIOC_S_HW_FREQ_SEEK	 _IOW('V', 82, struct v4l2_hw_freq_seek)
   1926 
   1927 #define	VIDIOC_S_DV_TIMINGS	_IOWR('V', 87, struct v4l2_dv_timings)
   1928 #define	VIDIOC_G_DV_TIMINGS	_IOWR('V', 88, struct v4l2_dv_timings)
   1929 #define	VIDIOC_DQEVENT		 _IOR('V', 89, struct v4l2_event)
   1930 #define	VIDIOC_SUBSCRIBE_EVENT	 _IOW('V', 90, struct v4l2_event_subscription)
   1931 #define	VIDIOC_UNSUBSCRIBE_EVENT _IOW('V', 91, struct v4l2_event_subscription)
   1932 
   1933 /* Experimental, the below two ioctls may change over the next couple of kernel
   1934    versions */
   1935 #define VIDIOC_CREATE_BUFS	_IOWR('V', 92, struct v4l2_create_buffers)
   1936 #define VIDIOC_PREPARE_BUF	_IOWR('V', 93, struct v4l2_buffer)
   1937 
   1938 /* Experimental selection API */
   1939 #define VIDIOC_G_SELECTION	_IOWR('V', 94, struct v4l2_selection)
   1940 #define VIDIOC_S_SELECTION	_IOWR('V', 95, struct v4l2_selection)
   1941 
   1942 /* Experimental, these two ioctls may change over the next couple of kernel
   1943    versions. */
   1944 #define VIDIOC_DECODER_CMD	_IOWR('V', 96, struct v4l2_decoder_cmd)
   1945 #define VIDIOC_TRY_DECODER_CMD	_IOWR('V', 97, struct v4l2_decoder_cmd)
   1946 
   1947 /* Experimental, these three ioctls may change over the next couple of kernel
   1948    versions. */
   1949 #define VIDIOC_ENUM_DV_TIMINGS  _IOWR('V', 98, struct v4l2_enum_dv_timings)
   1950 #define VIDIOC_QUERY_DV_TIMINGS  _IOR('V', 99, struct v4l2_dv_timings)
   1951 #define VIDIOC_DV_TIMINGS_CAP   _IOWR('V', 100, struct v4l2_dv_timings_cap)
   1952 
   1953 /* Experimental, this ioctl may change over the next couple of kernel
   1954    versions. */
   1955 #define VIDIOC_ENUM_FREQ_BANDS	_IOWR('V', 101, struct v4l2_frequency_band)
   1956 
   1957 /* Experimental, meant for debugging, testing and internal use.
   1958    Never use these in applications! */
   1959 #define VIDIOC_DBG_G_CHIP_INFO  _IOWR('V', 102, struct v4l2_dbg_chip_info)
   1960 
   1961 /* Reminder: when adding new ioctls please add support for them to
   1962    drivers/media/video/v4l2-compat-ioctl32.c as well! */
   1963 
   1964 #define BASE_VIDIOC_PRIVATE	192		/* 192-255 are private */
   1965 
   1966 #endif /* _UAPI__LINUX_VIDEODEV2_H */
   1967