include/uapi/linux/videodev2.h

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This source file includes following definitions.
v4l2_timeval_to_ns
   1 /* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) */
   2 /*
   3  *  Video for Linux Two header file
   4  *
   5  *  Copyright (C) 1999-2012 the contributors
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  Alternatively you can redistribute this file under the terms of the
  18  *  BSD license as stated below:
  19  *
  20  *  Redistribution and use in source and binary forms, with or without
  21  *  modification, are permitted provided that the following conditions
  22  *  are met:
  23  *  1. Redistributions of source code must retain the above copyright
  24  *     notice, this list of conditions and the following disclaimer.
  25  *  2. Redistributions in binary form must reproduce the above copyright
  26  *     notice, this list of conditions and the following disclaimer in
  27  *     the documentation and/or other materials provided with the
  28  *     distribution.
  29  *  3. The names of its contributors may not be used to endorse or promote
  30  *     products derived from this software without specific prior written
  31  *     permission.
  32  *
  33  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  34  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  35  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  36  *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  37  *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  38  *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
  39  *  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  40  *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  41  *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  42  *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  43  *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  44  *
  45  *      Header file for v4l or V4L2 drivers and applications
  46  * with public API.
  47  * All kernel-specific stuff were moved to media/v4l2-dev.h, so
  48  * no #if __KERNEL tests are allowed here
  49  *
  50  *      See https://linuxtv.org for more info
  51  *
  52  *      Author: Bill Dirks <bill@thedirks.org>
  53  *              Justin Schoeman
  54  *              Hans Verkuil <hverkuil@xs4all.nl>
  55  *              et al.
  56  */
  57 #ifndef _UAPI__LINUX_VIDEODEV2_H
  58 #define _UAPI__LINUX_VIDEODEV2_H
  59 
  60 #ifndef __KERNEL__
  61 #include <sys/time.h>
  62 #endif
  63 #include <linux/compiler.h>
  64 #include <linux/ioctl.h>
  65 #include <linux/types.h>
  66 #include <linux/v4l2-common.h>
  67 #include <linux/v4l2-controls.h>
  68 
  69 /*
  70  * Common stuff for both V4L1 and V4L2
  71  * Moved from videodev.h
  72  */
  73 #define VIDEO_MAX_FRAME               32
  74 #define VIDEO_MAX_PLANES               8
  75 
  76 /*
  77  *      M I S C E L L A N E O U S
  78  */
  79 
  80 /*  Four-character-code (FOURCC) */
  81 #define v4l2_fourcc(a, b, c, d)\
  82         ((__u32)(a) | ((__u32)(b) << 8) | ((__u32)(c) << 16) | ((__u32)(d) << 24))
  83 #define v4l2_fourcc_be(a, b, c, d)      (v4l2_fourcc(a, b, c, d) | (1U << 31))
  84 
  85 /*
  86  *      E N U M S
  87  */
  88 enum v4l2_field {
  89         V4L2_FIELD_ANY           = 0, /* driver can choose from none,
  90                                          top, bottom, interlaced
  91                                          depending on whatever it thinks
  92                                          is approximate ... */
  93         V4L2_FIELD_NONE          = 1, /* this device has no fields ... */
  94         V4L2_FIELD_TOP           = 2, /* top field only */
  95         V4L2_FIELD_BOTTOM        = 3, /* bottom field only */
  96         V4L2_FIELD_INTERLACED    = 4, /* both fields interlaced */
  97         V4L2_FIELD_SEQ_TB        = 5, /* both fields sequential into one
  98                                          buffer, top-bottom order */
  99         V4L2_FIELD_SEQ_BT        = 6, /* same as above + bottom-top order */
 100         V4L2_FIELD_ALTERNATE     = 7, /* both fields alternating into
 101                                          separate buffers */
 102         V4L2_FIELD_INTERLACED_TB = 8, /* both fields interlaced, top field
 103                                          first and the top field is
 104                                          transmitted first */
 105         V4L2_FIELD_INTERLACED_BT = 9, /* both fields interlaced, top field
 106                                          first and the bottom field is
 107                                          transmitted first */
 108 };
 109 #define V4L2_FIELD_HAS_TOP(field)       \
 110         ((field) == V4L2_FIELD_TOP      ||\
 111          (field) == V4L2_FIELD_INTERLACED ||\
 112          (field) == V4L2_FIELD_INTERLACED_TB ||\
 113          (field) == V4L2_FIELD_INTERLACED_BT ||\
 114          (field) == V4L2_FIELD_SEQ_TB   ||\
 115          (field) == V4L2_FIELD_SEQ_BT)
 116 #define V4L2_FIELD_HAS_BOTTOM(field)    \
 117         ((field) == V4L2_FIELD_BOTTOM   ||\
 118          (field) == V4L2_FIELD_INTERLACED ||\
 119          (field) == V4L2_FIELD_INTERLACED_TB ||\
 120          (field) == V4L2_FIELD_INTERLACED_BT ||\
 121          (field) == V4L2_FIELD_SEQ_TB   ||\
 122          (field) == V4L2_FIELD_SEQ_BT)
 123 #define V4L2_FIELD_HAS_BOTH(field)      \
 124         ((field) == V4L2_FIELD_INTERLACED ||\
 125          (field) == V4L2_FIELD_INTERLACED_TB ||\
 126          (field) == V4L2_FIELD_INTERLACED_BT ||\
 127          (field) == V4L2_FIELD_SEQ_TB ||\
 128          (field) == V4L2_FIELD_SEQ_BT)
 129 #define V4L2_FIELD_HAS_T_OR_B(field)    \
 130         ((field) == V4L2_FIELD_BOTTOM ||\
 131          (field) == V4L2_FIELD_TOP ||\
 132          (field) == V4L2_FIELD_ALTERNATE)
 133 #define V4L2_FIELD_IS_INTERLACED(field) \
 134         ((field) == V4L2_FIELD_INTERLACED ||\
 135          (field) == V4L2_FIELD_INTERLACED_TB ||\
 136          (field) == V4L2_FIELD_INTERLACED_BT)
 137 #define V4L2_FIELD_IS_SEQUENTIAL(field) \
 138         ((field) == V4L2_FIELD_SEQ_TB ||\
 139          (field) == V4L2_FIELD_SEQ_BT)
 140 
 141 enum v4l2_buf_type {
 142         V4L2_BUF_TYPE_VIDEO_CAPTURE        = 1,
 143         V4L2_BUF_TYPE_VIDEO_OUTPUT         = 2,
 144         V4L2_BUF_TYPE_VIDEO_OVERLAY        = 3,
 145         V4L2_BUF_TYPE_VBI_CAPTURE          = 4,
 146         V4L2_BUF_TYPE_VBI_OUTPUT           = 5,
 147         V4L2_BUF_TYPE_SLICED_VBI_CAPTURE   = 6,
 148         V4L2_BUF_TYPE_SLICED_VBI_OUTPUT    = 7,
 149         V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY = 8,
 150         V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE = 9,
 151         V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE  = 10,
 152         V4L2_BUF_TYPE_SDR_CAPTURE          = 11,
 153         V4L2_BUF_TYPE_SDR_OUTPUT           = 12,
 154         V4L2_BUF_TYPE_META_CAPTURE         = 13,
 155         V4L2_BUF_TYPE_META_OUTPUT          = 14,
 156         /* Deprecated, do not use */
 157         V4L2_BUF_TYPE_PRIVATE              = 0x80,
 158 };
 159 
 160 #define V4L2_TYPE_IS_MULTIPLANAR(type)                  \
 161         ((type) == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE   \
 162          || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 163 
 164 #define V4L2_TYPE_IS_OUTPUT(type)                               \
 165         ((type) == V4L2_BUF_TYPE_VIDEO_OUTPUT                   \
 166          || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE         \
 167          || (type) == V4L2_BUF_TYPE_VIDEO_OVERLAY               \
 168          || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY        \
 169          || (type) == V4L2_BUF_TYPE_VBI_OUTPUT                  \
 170          || (type) == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT           \
 171          || (type) == V4L2_BUF_TYPE_SDR_OUTPUT                  \
 172          || (type) == V4L2_BUF_TYPE_META_OUTPUT)
 173 
 174 enum v4l2_tuner_type {
 175         V4L2_TUNER_RADIO             = 1,
 176         V4L2_TUNER_ANALOG_TV         = 2,
 177         V4L2_TUNER_DIGITAL_TV        = 3,
 178         V4L2_TUNER_SDR               = 4,
 179         V4L2_TUNER_RF                = 5,
 180 };
 181 
 182 /* Deprecated, do not use */
 183 #define V4L2_TUNER_ADC  V4L2_TUNER_SDR
 184 
 185 enum v4l2_memory {
 186         V4L2_MEMORY_MMAP             = 1,
 187         V4L2_MEMORY_USERPTR          = 2,
 188         V4L2_MEMORY_OVERLAY          = 3,
 189         V4L2_MEMORY_DMABUF           = 4,
 190 };
 191 
 192 /* see also http://vektor.theorem.ca/graphics/ycbcr/ */
 193 enum v4l2_colorspace {
 194         /*
 195          * Default colorspace, i.e. let the driver figure it out.
 196          * Can only be used with video capture.
 197          */
 198         V4L2_COLORSPACE_DEFAULT       = 0,
 199 
 200         /* SMPTE 170M: used for broadcast NTSC/PAL SDTV */
 201         V4L2_COLORSPACE_SMPTE170M     = 1,
 202 
 203         /* Obsolete pre-1998 SMPTE 240M HDTV standard, superseded by Rec 709 */
 204         V4L2_COLORSPACE_SMPTE240M     = 2,
 205 
 206         /* Rec.709: used for HDTV */
 207         V4L2_COLORSPACE_REC709        = 3,
 208 
 209         /*
 210          * Deprecated, do not use. No driver will ever return this. This was
 211          * based on a misunderstanding of the bt878 datasheet.
 212          */
 213         V4L2_COLORSPACE_BT878         = 4,
 214 
 215         /*
 216          * NTSC 1953 colorspace. This only makes sense when dealing with
 217          * really, really old NTSC recordings. Superseded by SMPTE 170M.
 218          */
 219         V4L2_COLORSPACE_470_SYSTEM_M  = 5,
 220 
 221         /*
 222          * EBU Tech 3213 PAL/SECAM colorspace. This only makes sense when
 223          * dealing with really old PAL/SECAM recordings. Superseded by
 224          * SMPTE 170M.
 225          */
 226         V4L2_COLORSPACE_470_SYSTEM_BG = 6,
 227 
 228         /*
 229          * Effectively shorthand for V4L2_COLORSPACE_SRGB, V4L2_YCBCR_ENC_601
 230          * and V4L2_QUANTIZATION_FULL_RANGE. To be used for (Motion-)JPEG.
 231          */
 232         V4L2_COLORSPACE_JPEG          = 7,
 233 
 234         /* For RGB colorspaces such as produces by most webcams. */
 235         V4L2_COLORSPACE_SRGB          = 8,
 236 
 237         /* opRGB colorspace */
 238         V4L2_COLORSPACE_OPRGB         = 9,
 239 
 240         /* BT.2020 colorspace, used for UHDTV. */
 241         V4L2_COLORSPACE_BT2020        = 10,
 242 
 243         /* Raw colorspace: for RAW unprocessed images */
 244         V4L2_COLORSPACE_RAW           = 11,
 245 
 246         /* DCI-P3 colorspace, used by cinema projectors */
 247         V4L2_COLORSPACE_DCI_P3        = 12,
 248 };
 249 
 250 /*
 251  * Determine how COLORSPACE_DEFAULT should map to a proper colorspace.
 252  * This depends on whether this is a SDTV image (use SMPTE 170M), an
 253  * HDTV image (use Rec. 709), or something else (use sRGB).
 254  */
 255 #define V4L2_MAP_COLORSPACE_DEFAULT(is_sdtv, is_hdtv) \
 256         ((is_sdtv) ? V4L2_COLORSPACE_SMPTE170M : \
 257          ((is_hdtv) ? V4L2_COLORSPACE_REC709 : V4L2_COLORSPACE_SRGB))
 258 
 259 enum v4l2_xfer_func {
 260         /*
 261          * Mapping of V4L2_XFER_FUNC_DEFAULT to actual transfer functions
 262          * for the various colorspaces:
 263          *
 264          * V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M,
 265          * V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_REC709 and
 266          * V4L2_COLORSPACE_BT2020: V4L2_XFER_FUNC_709
 267          *
 268          * V4L2_COLORSPACE_SRGB, V4L2_COLORSPACE_JPEG: V4L2_XFER_FUNC_SRGB
 269          *
 270          * V4L2_COLORSPACE_OPRGB: V4L2_XFER_FUNC_OPRGB
 271          *
 272          * V4L2_COLORSPACE_SMPTE240M: V4L2_XFER_FUNC_SMPTE240M
 273          *
 274          * V4L2_COLORSPACE_RAW: V4L2_XFER_FUNC_NONE
 275          *
 276          * V4L2_COLORSPACE_DCI_P3: V4L2_XFER_FUNC_DCI_P3
 277          */
 278         V4L2_XFER_FUNC_DEFAULT     = 0,
 279         V4L2_XFER_FUNC_709         = 1,
 280         V4L2_XFER_FUNC_SRGB        = 2,
 281         V4L2_XFER_FUNC_OPRGB       = 3,
 282         V4L2_XFER_FUNC_SMPTE240M   = 4,
 283         V4L2_XFER_FUNC_NONE        = 5,
 284         V4L2_XFER_FUNC_DCI_P3      = 6,
 285         V4L2_XFER_FUNC_SMPTE2084   = 7,
 286 };
 287 
 288 /*
 289  * Determine how XFER_FUNC_DEFAULT should map to a proper transfer function.
 290  * This depends on the colorspace.
 291  */
 292 #define V4L2_MAP_XFER_FUNC_DEFAULT(colsp) \
 293         ((colsp) == V4L2_COLORSPACE_OPRGB ? V4L2_XFER_FUNC_OPRGB : \
 294          ((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_XFER_FUNC_SMPTE240M : \
 295           ((colsp) == V4L2_COLORSPACE_DCI_P3 ? V4L2_XFER_FUNC_DCI_P3 : \
 296            ((colsp) == V4L2_COLORSPACE_RAW ? V4L2_XFER_FUNC_NONE : \
 297             ((colsp) == V4L2_COLORSPACE_SRGB || (colsp) == V4L2_COLORSPACE_JPEG ? \
 298              V4L2_XFER_FUNC_SRGB : V4L2_XFER_FUNC_709)))))
 299 
 300 enum v4l2_ycbcr_encoding {
 301         /*
 302          * Mapping of V4L2_YCBCR_ENC_DEFAULT to actual encodings for the
 303          * various colorspaces:
 304          *
 305          * V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M,
 306          * V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_SRGB,
 307          * V4L2_COLORSPACE_OPRGB and V4L2_COLORSPACE_JPEG: V4L2_YCBCR_ENC_601
 308          *
 309          * V4L2_COLORSPACE_REC709 and V4L2_COLORSPACE_DCI_P3: V4L2_YCBCR_ENC_709
 310          *
 311          * V4L2_COLORSPACE_BT2020: V4L2_YCBCR_ENC_BT2020
 312          *
 313          * V4L2_COLORSPACE_SMPTE240M: V4L2_YCBCR_ENC_SMPTE240M
 314          */
 315         V4L2_YCBCR_ENC_DEFAULT        = 0,
 316 
 317         /* ITU-R 601 -- SDTV */
 318         V4L2_YCBCR_ENC_601            = 1,
 319 
 320         /* Rec. 709 -- HDTV */
 321         V4L2_YCBCR_ENC_709            = 2,
 322 
 323         /* ITU-R 601/EN 61966-2-4 Extended Gamut -- SDTV */
 324         V4L2_YCBCR_ENC_XV601          = 3,
 325 
 326         /* Rec. 709/EN 61966-2-4 Extended Gamut -- HDTV */
 327         V4L2_YCBCR_ENC_XV709          = 4,
 328 
 329 #ifndef __KERNEL__
 330         /*
 331          * sYCC (Y'CbCr encoding of sRGB), identical to ENC_601. It was added
 332          * originally due to a misunderstanding of the sYCC standard. It should
 333          * not be used, instead use V4L2_YCBCR_ENC_601.
 334          */
 335         V4L2_YCBCR_ENC_SYCC           = 5,
 336 #endif
 337 
 338         /* BT.2020 Non-constant Luminance Y'CbCr */
 339         V4L2_YCBCR_ENC_BT2020         = 6,
 340 
 341         /* BT.2020 Constant Luminance Y'CbcCrc */
 342         V4L2_YCBCR_ENC_BT2020_CONST_LUM = 7,
 343 
 344         /* SMPTE 240M -- Obsolete HDTV */
 345         V4L2_YCBCR_ENC_SMPTE240M      = 8,
 346 };
 347 
 348 /*
 349  * enum v4l2_hsv_encoding values should not collide with the ones from
 350  * enum v4l2_ycbcr_encoding.
 351  */
 352 enum v4l2_hsv_encoding {
 353 
 354         /* Hue mapped to 0 - 179 */
 355         V4L2_HSV_ENC_180                = 128,
 356 
 357         /* Hue mapped to 0-255 */
 358         V4L2_HSV_ENC_256                = 129,
 359 };
 360 
 361 /*
 362  * Determine how YCBCR_ENC_DEFAULT should map to a proper Y'CbCr encoding.
 363  * This depends on the colorspace.
 364  */
 365 #define V4L2_MAP_YCBCR_ENC_DEFAULT(colsp) \
 366         (((colsp) == V4L2_COLORSPACE_REC709 || \
 367           (colsp) == V4L2_COLORSPACE_DCI_P3) ? V4L2_YCBCR_ENC_709 : \
 368          ((colsp) == V4L2_COLORSPACE_BT2020 ? V4L2_YCBCR_ENC_BT2020 : \
 369           ((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_YCBCR_ENC_SMPTE240M : \
 370            V4L2_YCBCR_ENC_601)))
 371 
 372 enum v4l2_quantization {
 373         /*
 374          * The default for R'G'B' quantization is always full range, except
 375          * for the BT2020 colorspace. For Y'CbCr the quantization is always
 376          * limited range, except for COLORSPACE_JPEG: this is full range.
 377          */
 378         V4L2_QUANTIZATION_DEFAULT     = 0,
 379         V4L2_QUANTIZATION_FULL_RANGE  = 1,
 380         V4L2_QUANTIZATION_LIM_RANGE   = 2,
 381 };
 382 
 383 /*
 384  * Determine how QUANTIZATION_DEFAULT should map to a proper quantization.
 385  * This depends on whether the image is RGB or not, the colorspace and the
 386  * Y'CbCr encoding.
 387  */
 388 #define V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb_or_hsv, colsp, ycbcr_enc) \
 389         (((is_rgb_or_hsv) && (colsp) == V4L2_COLORSPACE_BT2020) ? \
 390          V4L2_QUANTIZATION_LIM_RANGE : \
 391          (((is_rgb_or_hsv) || (colsp) == V4L2_COLORSPACE_JPEG) ? \
 392          V4L2_QUANTIZATION_FULL_RANGE : V4L2_QUANTIZATION_LIM_RANGE))
 393 
 394 /*
 395  * Deprecated names for opRGB colorspace (IEC 61966-2-5)
 396  *
 397  * WARNING: Please don't use these deprecated defines in your code, as
 398  * there is a chance we have to remove them in the future.
 399  */
 400 #ifndef __KERNEL__
 401 #define V4L2_COLORSPACE_ADOBERGB V4L2_COLORSPACE_OPRGB
 402 #define V4L2_XFER_FUNC_ADOBERGB  V4L2_XFER_FUNC_OPRGB
 403 #endif
 404 
 405 enum v4l2_priority {
 406         V4L2_PRIORITY_UNSET       = 0,  /* not initialized */
 407         V4L2_PRIORITY_BACKGROUND  = 1,
 408         V4L2_PRIORITY_INTERACTIVE = 2,
 409         V4L2_PRIORITY_RECORD      = 3,
 410         V4L2_PRIORITY_DEFAULT     = V4L2_PRIORITY_INTERACTIVE,
 411 };
 412 
 413 struct v4l2_rect {
 414         __s32   left;
 415         __s32   top;
 416         __u32   width;
 417         __u32   height;
 418 };
 419 
 420 struct v4l2_fract {
 421         __u32   numerator;
 422         __u32   denominator;
 423 };
 424 
 425 /**
 426   * struct v4l2_capability - Describes V4L2 device caps returned by VIDIOC_QUERYCAP
 427   *
 428   * @driver:       name of the driver module (e.g. "bttv")
 429   * @card:         name of the card (e.g. "Hauppauge WinTV")
 430   * @bus_info:     name of the bus (e.g. "PCI:" + pci_name(pci_dev) )
 431   * @version:      KERNEL_VERSION
 432   * @capabilities: capabilities of the physical device as a whole
 433   * @device_caps:  capabilities accessed via this particular device (node)
 434   * @reserved:     reserved fields for future extensions
 435   */
 436 struct v4l2_capability {
 437         __u8    driver[16];
 438         __u8    card[32];
 439         __u8    bus_info[32];
 440         __u32   version;
 441         __u32   capabilities;
 442         __u32   device_caps;
 443         __u32   reserved[3];
 444 };
 445 
 446 /* Values for 'capabilities' field */
 447 #define V4L2_CAP_VIDEO_CAPTURE          0x00000001  /* Is a video capture device */
 448 #define V4L2_CAP_VIDEO_OUTPUT           0x00000002  /* Is a video output device */
 449 #define V4L2_CAP_VIDEO_OVERLAY          0x00000004  /* Can do video overlay */
 450 #define V4L2_CAP_VBI_CAPTURE            0x00000010  /* Is a raw VBI capture device */
 451 #define V4L2_CAP_VBI_OUTPUT             0x00000020  /* Is a raw VBI output device */
 452 #define V4L2_CAP_SLICED_VBI_CAPTURE     0x00000040  /* Is a sliced VBI capture device */
 453 #define V4L2_CAP_SLICED_VBI_OUTPUT      0x00000080  /* Is a sliced VBI output device */
 454 #define V4L2_CAP_RDS_CAPTURE            0x00000100  /* RDS data capture */
 455 #define V4L2_CAP_VIDEO_OUTPUT_OVERLAY   0x00000200  /* Can do video output overlay */
 456 #define V4L2_CAP_HW_FREQ_SEEK           0x00000400  /* Can do hardware frequency seek  */
 457 #define V4L2_CAP_RDS_OUTPUT             0x00000800  /* Is an RDS encoder */
 458 
 459 /* Is a video capture device that supports multiplanar formats */
 460 #define V4L2_CAP_VIDEO_CAPTURE_MPLANE   0x00001000
 461 /* Is a video output device that supports multiplanar formats */
 462 #define V4L2_CAP_VIDEO_OUTPUT_MPLANE    0x00002000
 463 /* Is a video mem-to-mem device that supports multiplanar formats */
 464 #define V4L2_CAP_VIDEO_M2M_MPLANE       0x00004000
 465 /* Is a video mem-to-mem device */
 466 #define V4L2_CAP_VIDEO_M2M              0x00008000
 467 
 468 #define V4L2_CAP_TUNER                  0x00010000  /* has a tuner */
 469 #define V4L2_CAP_AUDIO                  0x00020000  /* has audio support */
 470 #define V4L2_CAP_RADIO                  0x00040000  /* is a radio device */
 471 #define V4L2_CAP_MODULATOR              0x00080000  /* has a modulator */
 472 
 473 #define V4L2_CAP_SDR_CAPTURE            0x00100000  /* Is a SDR capture device */
 474 #define V4L2_CAP_EXT_PIX_FORMAT         0x00200000  /* Supports the extended pixel format */
 475 #define V4L2_CAP_SDR_OUTPUT             0x00400000  /* Is a SDR output device */
 476 #define V4L2_CAP_META_CAPTURE           0x00800000  /* Is a metadata capture device */
 477 
 478 #define V4L2_CAP_READWRITE              0x01000000  /* read/write systemcalls */
 479 #define V4L2_CAP_ASYNCIO                0x02000000  /* async I/O */
 480 #define V4L2_CAP_STREAMING              0x04000000  /* streaming I/O ioctls */
 481 #define V4L2_CAP_META_OUTPUT            0x08000000  /* Is a metadata output device */
 482 
 483 #define V4L2_CAP_TOUCH                  0x10000000  /* Is a touch device */
 484 
 485 #define V4L2_CAP_DEVICE_CAPS            0x80000000  /* sets device capabilities field */
 486 
 487 /*
 488  *      V I D E O   I M A G E   F O R M A T
 489  */
 490 struct v4l2_pix_format {
 491         __u32                   width;
 492         __u32                   height;
 493         __u32                   pixelformat;
 494         __u32                   field;          /* enum v4l2_field */
 495         __u32                   bytesperline;   /* for padding, zero if unused */
 496         __u32                   sizeimage;
 497         __u32                   colorspace;     /* enum v4l2_colorspace */
 498         __u32                   priv;           /* private data, depends on pixelformat */
 499         __u32                   flags;          /* format flags (V4L2_PIX_FMT_FLAG_*) */
 500         union {
 501                 /* enum v4l2_ycbcr_encoding */
 502                 __u32                   ycbcr_enc;
 503                 /* enum v4l2_hsv_encoding */
 504                 __u32                   hsv_enc;
 505         };
 506         __u32                   quantization;   /* enum v4l2_quantization */
 507         __u32                   xfer_func;      /* enum v4l2_xfer_func */
 508 };
 509 
 510 /*      Pixel format         FOURCC                          depth  Description  */
 511 
 512 /* RGB formats */
 513 #define V4L2_PIX_FMT_RGB332  v4l2_fourcc('R', 'G', 'B', '1') /*  8  RGB-3-3-2     */
 514 #define V4L2_PIX_FMT_RGB444  v4l2_fourcc('R', '4', '4', '4') /* 16  xxxxrrrr ggggbbbb */
 515 #define V4L2_PIX_FMT_ARGB444 v4l2_fourcc('A', 'R', '1', '2') /* 16  aaaarrrr ggggbbbb */
 516 #define V4L2_PIX_FMT_XRGB444 v4l2_fourcc('X', 'R', '1', '2') /* 16  xxxxrrrr ggggbbbb */
 517 #define V4L2_PIX_FMT_RGBA444 v4l2_fourcc('R', 'A', '1', '2') /* 16  rrrrgggg bbbbaaaa */
 518 #define V4L2_PIX_FMT_RGBX444 v4l2_fourcc('R', 'X', '1', '2') /* 16  rrrrgggg bbbbxxxx */
 519 #define V4L2_PIX_FMT_ABGR444 v4l2_fourcc('A', 'B', '1', '2') /* 16  aaaabbbb ggggrrrr */
 520 #define V4L2_PIX_FMT_XBGR444 v4l2_fourcc('X', 'B', '1', '2') /* 16  xxxxbbbb ggggrrrr */
 521 
 522 /*
 523  * Originally this had 'BA12' as fourcc, but this clashed with the older
 524  * V4L2_PIX_FMT_SGRBG12 which inexplicably used that same fourcc.
 525  * So use 'GA12' instead for V4L2_PIX_FMT_BGRA444.
 526  */
 527 #define V4L2_PIX_FMT_BGRA444 v4l2_fourcc('G', 'A', '1', '2') /* 16  bbbbgggg rrrraaaa */
 528 #define V4L2_PIX_FMT_BGRX444 v4l2_fourcc('B', 'X', '1', '2') /* 16  bbbbgggg rrrrxxxx */
 529 #define V4L2_PIX_FMT_RGB555  v4l2_fourcc('R', 'G', 'B', 'O') /* 16  RGB-5-5-5     */
 530 #define V4L2_PIX_FMT_ARGB555 v4l2_fourcc('A', 'R', '1', '5') /* 16  ARGB-1-5-5-5  */
 531 #define V4L2_PIX_FMT_XRGB555 v4l2_fourcc('X', 'R', '1', '5') /* 16  XRGB-1-5-5-5  */
 532 #define V4L2_PIX_FMT_RGBA555 v4l2_fourcc('R', 'A', '1', '5') /* 16  RGBA-5-5-5-1  */
 533 #define V4L2_PIX_FMT_RGBX555 v4l2_fourcc('R', 'X', '1', '5') /* 16  RGBX-5-5-5-1  */
 534 #define V4L2_PIX_FMT_ABGR555 v4l2_fourcc('A', 'B', '1', '5') /* 16  ABGR-1-5-5-5  */
 535 #define V4L2_PIX_FMT_XBGR555 v4l2_fourcc('X', 'B', '1', '5') /* 16  XBGR-1-5-5-5  */
 536 #define V4L2_PIX_FMT_BGRA555 v4l2_fourcc('B', 'A', '1', '5') /* 16  BGRA-5-5-5-1  */
 537 #define V4L2_PIX_FMT_BGRX555 v4l2_fourcc('B', 'X', '1', '5') /* 16  BGRX-5-5-5-1  */
 538 #define V4L2_PIX_FMT_RGB565  v4l2_fourcc('R', 'G', 'B', 'P') /* 16  RGB-5-6-5     */
 539 #define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R', 'G', 'B', 'Q') /* 16  RGB-5-5-5 BE  */
 540 #define V4L2_PIX_FMT_ARGB555X v4l2_fourcc_be('A', 'R', '1', '5') /* 16  ARGB-5-5-5 BE */
 541 #define V4L2_PIX_FMT_XRGB555X v4l2_fourcc_be('X', 'R', '1', '5') /* 16  XRGB-5-5-5 BE */
 542 #define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R', 'G', 'B', 'R') /* 16  RGB-5-6-5 BE  */
 543 #define V4L2_PIX_FMT_BGR666  v4l2_fourcc('B', 'G', 'R', 'H') /* 18  BGR-6-6-6     */
 544 #define V4L2_PIX_FMT_BGR24   v4l2_fourcc('B', 'G', 'R', '3') /* 24  BGR-8-8-8     */
 545 #define V4L2_PIX_FMT_RGB24   v4l2_fourcc('R', 'G', 'B', '3') /* 24  RGB-8-8-8     */
 546 #define V4L2_PIX_FMT_BGR32   v4l2_fourcc('B', 'G', 'R', '4') /* 32  BGR-8-8-8-8   */
 547 #define V4L2_PIX_FMT_ABGR32  v4l2_fourcc('A', 'R', '2', '4') /* 32  BGRA-8-8-8-8  */
 548 #define V4L2_PIX_FMT_XBGR32  v4l2_fourcc('X', 'R', '2', '4') /* 32  BGRX-8-8-8-8  */
 549 #define V4L2_PIX_FMT_BGRA32  v4l2_fourcc('R', 'A', '2', '4') /* 32  ABGR-8-8-8-8  */
 550 #define V4L2_PIX_FMT_BGRX32  v4l2_fourcc('R', 'X', '2', '4') /* 32  XBGR-8-8-8-8  */
 551 #define V4L2_PIX_FMT_RGB32   v4l2_fourcc('R', 'G', 'B', '4') /* 32  RGB-8-8-8-8   */
 552 #define V4L2_PIX_FMT_RGBA32  v4l2_fourcc('A', 'B', '2', '4') /* 32  RGBA-8-8-8-8  */
 553 #define V4L2_PIX_FMT_RGBX32  v4l2_fourcc('X', 'B', '2', '4') /* 32  RGBX-8-8-8-8  */
 554 #define V4L2_PIX_FMT_ARGB32  v4l2_fourcc('B', 'A', '2', '4') /* 32  ARGB-8-8-8-8  */
 555 #define V4L2_PIX_FMT_XRGB32  v4l2_fourcc('B', 'X', '2', '4') /* 32  XRGB-8-8-8-8  */
 556 
 557 /* Grey formats */
 558 #define V4L2_PIX_FMT_GREY    v4l2_fourcc('G', 'R', 'E', 'Y') /*  8  Greyscale     */
 559 #define V4L2_PIX_FMT_Y4      v4l2_fourcc('Y', '0', '4', ' ') /*  4  Greyscale     */
 560 #define V4L2_PIX_FMT_Y6      v4l2_fourcc('Y', '0', '6', ' ') /*  6  Greyscale     */
 561 #define V4L2_PIX_FMT_Y10     v4l2_fourcc('Y', '1', '0', ' ') /* 10  Greyscale     */
 562 #define V4L2_PIX_FMT_Y12     v4l2_fourcc('Y', '1', '2', ' ') /* 12  Greyscale     */
 563 #define V4L2_PIX_FMT_Y16     v4l2_fourcc('Y', '1', '6', ' ') /* 16  Greyscale     */
 564 #define V4L2_PIX_FMT_Y16_BE  v4l2_fourcc_be('Y', '1', '6', ' ') /* 16  Greyscale BE  */
 565 
 566 /* Grey bit-packed formats */
 567 #define V4L2_PIX_FMT_Y10BPACK    v4l2_fourcc('Y', '1', '0', 'B') /* 10  Greyscale bit-packed */
 568 #define V4L2_PIX_FMT_Y10P    v4l2_fourcc('Y', '1', '0', 'P') /* 10  Greyscale, MIPI RAW10 packed */
 569 
 570 /* Palette formats */
 571 #define V4L2_PIX_FMT_PAL8    v4l2_fourcc('P', 'A', 'L', '8') /*  8  8-bit palette */
 572 
 573 /* Chrominance formats */
 574 #define V4L2_PIX_FMT_UV8     v4l2_fourcc('U', 'V', '8', ' ') /*  8  UV 4:4 */
 575 
 576 /* Luminance+Chrominance formats */
 577 #define V4L2_PIX_FMT_YUYV    v4l2_fourcc('Y', 'U', 'Y', 'V') /* 16  YUV 4:2:2     */
 578 #define V4L2_PIX_FMT_YYUV    v4l2_fourcc('Y', 'Y', 'U', 'V') /* 16  YUV 4:2:2     */
 579 #define V4L2_PIX_FMT_YVYU    v4l2_fourcc('Y', 'V', 'Y', 'U') /* 16 YVU 4:2:2 */
 580 #define V4L2_PIX_FMT_UYVY    v4l2_fourcc('U', 'Y', 'V', 'Y') /* 16  YUV 4:2:2     */
 581 #define V4L2_PIX_FMT_VYUY    v4l2_fourcc('V', 'Y', 'U', 'Y') /* 16  YUV 4:2:2     */
 582 #define V4L2_PIX_FMT_Y41P    v4l2_fourcc('Y', '4', '1', 'P') /* 12  YUV 4:1:1     */
 583 #define V4L2_PIX_FMT_YUV444  v4l2_fourcc('Y', '4', '4', '4') /* 16  xxxxyyyy uuuuvvvv */
 584 #define V4L2_PIX_FMT_YUV555  v4l2_fourcc('Y', 'U', 'V', 'O') /* 16  YUV-5-5-5     */
 585 #define V4L2_PIX_FMT_YUV565  v4l2_fourcc('Y', 'U', 'V', 'P') /* 16  YUV-5-6-5     */
 586 #define V4L2_PIX_FMT_YUV32   v4l2_fourcc('Y', 'U', 'V', '4') /* 32  YUV-8-8-8-8   */
 587 #define V4L2_PIX_FMT_AYUV32  v4l2_fourcc('A', 'Y', 'U', 'V') /* 32  AYUV-8-8-8-8  */
 588 #define V4L2_PIX_FMT_XYUV32  v4l2_fourcc('X', 'Y', 'U', 'V') /* 32  XYUV-8-8-8-8  */
 589 #define V4L2_PIX_FMT_VUYA32  v4l2_fourcc('V', 'U', 'Y', 'A') /* 32  VUYA-8-8-8-8  */
 590 #define V4L2_PIX_FMT_VUYX32  v4l2_fourcc('V', 'U', 'Y', 'X') /* 32  VUYX-8-8-8-8  */
 591 #define V4L2_PIX_FMT_HI240   v4l2_fourcc('H', 'I', '2', '4') /*  8  8-bit color   */
 592 #define V4L2_PIX_FMT_HM12    v4l2_fourcc('H', 'M', '1', '2') /*  8  YUV 4:2:0 16x16 macroblocks */
 593 #define V4L2_PIX_FMT_M420    v4l2_fourcc('M', '4', '2', '0') /* 12  YUV 4:2:0 2 lines y, 1 line uv interleaved */
 594 
 595 /* two planes -- one Y, one Cr + Cb interleaved  */
 596 #define V4L2_PIX_FMT_NV12    v4l2_fourcc('N', 'V', '1', '2') /* 12  Y/CbCr 4:2:0  */
 597 #define V4L2_PIX_FMT_NV21    v4l2_fourcc('N', 'V', '2', '1') /* 12  Y/CrCb 4:2:0  */
 598 #define V4L2_PIX_FMT_NV16    v4l2_fourcc('N', 'V', '1', '6') /* 16  Y/CbCr 4:2:2  */
 599 #define V4L2_PIX_FMT_NV61    v4l2_fourcc('N', 'V', '6', '1') /* 16  Y/CrCb 4:2:2  */
 600 #define V4L2_PIX_FMT_NV24    v4l2_fourcc('N', 'V', '2', '4') /* 24  Y/CbCr 4:4:4  */
 601 #define V4L2_PIX_FMT_NV42    v4l2_fourcc('N', 'V', '4', '2') /* 24  Y/CrCb 4:4:4  */
 602 
 603 /* two non contiguous planes - one Y, one Cr + Cb interleaved  */
 604 #define V4L2_PIX_FMT_NV12M   v4l2_fourcc('N', 'M', '1', '2') /* 12  Y/CbCr 4:2:0  */
 605 #define V4L2_PIX_FMT_NV21M   v4l2_fourcc('N', 'M', '2', '1') /* 21  Y/CrCb 4:2:0  */
 606 #define V4L2_PIX_FMT_NV16M   v4l2_fourcc('N', 'M', '1', '6') /* 16  Y/CbCr 4:2:2  */
 607 #define V4L2_PIX_FMT_NV61M   v4l2_fourcc('N', 'M', '6', '1') /* 16  Y/CrCb 4:2:2  */
 608 #define V4L2_PIX_FMT_NV12MT  v4l2_fourcc('T', 'M', '1', '2') /* 12  Y/CbCr 4:2:0 64x32 macroblocks */
 609 #define V4L2_PIX_FMT_NV12MT_16X16 v4l2_fourcc('V', 'M', '1', '2') /* 12  Y/CbCr 4:2:0 16x16 macroblocks */
 610 
 611 /* three planes - Y Cb, Cr */
 612 #define V4L2_PIX_FMT_YUV410  v4l2_fourcc('Y', 'U', 'V', '9') /*  9  YUV 4:1:0     */
 613 #define V4L2_PIX_FMT_YVU410  v4l2_fourcc('Y', 'V', 'U', '9') /*  9  YVU 4:1:0     */
 614 #define V4L2_PIX_FMT_YUV411P v4l2_fourcc('4', '1', '1', 'P') /* 12  YVU411 planar */
 615 #define V4L2_PIX_FMT_YUV420  v4l2_fourcc('Y', 'U', '1', '2') /* 12  YUV 4:2:0     */
 616 #define V4L2_PIX_FMT_YVU420  v4l2_fourcc('Y', 'V', '1', '2') /* 12  YVU 4:2:0     */
 617 #define V4L2_PIX_FMT_YUV422P v4l2_fourcc('4', '2', '2', 'P') /* 16  YVU422 planar */
 618 
 619 /* three non contiguous planes - Y, Cb, Cr */
 620 #define V4L2_PIX_FMT_YUV420M v4l2_fourcc('Y', 'M', '1', '2') /* 12  YUV420 planar */
 621 #define V4L2_PIX_FMT_YVU420M v4l2_fourcc('Y', 'M', '2', '1') /* 12  YVU420 planar */
 622 #define V4L2_PIX_FMT_YUV422M v4l2_fourcc('Y', 'M', '1', '6') /* 16  YUV422 planar */
 623 #define V4L2_PIX_FMT_YVU422M v4l2_fourcc('Y', 'M', '6', '1') /* 16  YVU422 planar */
 624 #define V4L2_PIX_FMT_YUV444M v4l2_fourcc('Y', 'M', '2', '4') /* 24  YUV444 planar */
 625 #define V4L2_PIX_FMT_YVU444M v4l2_fourcc('Y', 'M', '4', '2') /* 24  YVU444 planar */
 626 
 627 /* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */
 628 #define V4L2_PIX_FMT_SBGGR8  v4l2_fourcc('B', 'A', '8', '1') /*  8  BGBG.. GRGR.. */
 629 #define V4L2_PIX_FMT_SGBRG8  v4l2_fourcc('G', 'B', 'R', 'G') /*  8  GBGB.. RGRG.. */
 630 #define V4L2_PIX_FMT_SGRBG8  v4l2_fourcc('G', 'R', 'B', 'G') /*  8  GRGR.. BGBG.. */
 631 #define V4L2_PIX_FMT_SRGGB8  v4l2_fourcc('R', 'G', 'G', 'B') /*  8  RGRG.. GBGB.. */
 632 #define V4L2_PIX_FMT_SBGGR10 v4l2_fourcc('B', 'G', '1', '0') /* 10  BGBG.. GRGR.. */
 633 #define V4L2_PIX_FMT_SGBRG10 v4l2_fourcc('G', 'B', '1', '0') /* 10  GBGB.. RGRG.. */
 634 #define V4L2_PIX_FMT_SGRBG10 v4l2_fourcc('B', 'A', '1', '0') /* 10  GRGR.. BGBG.. */
 635 #define V4L2_PIX_FMT_SRGGB10 v4l2_fourcc('R', 'G', '1', '0') /* 10  RGRG.. GBGB.. */
 636         /* 10bit raw bayer packed, 5 bytes for every 4 pixels */
 637 #define V4L2_PIX_FMT_SBGGR10P v4l2_fourcc('p', 'B', 'A', 'A')
 638 #define V4L2_PIX_FMT_SGBRG10P v4l2_fourcc('p', 'G', 'A', 'A')
 639 #define V4L2_PIX_FMT_SGRBG10P v4l2_fourcc('p', 'g', 'A', 'A')
 640 #define V4L2_PIX_FMT_SRGGB10P v4l2_fourcc('p', 'R', 'A', 'A')
 641         /* 10bit raw bayer a-law compressed to 8 bits */
 642 #define V4L2_PIX_FMT_SBGGR10ALAW8 v4l2_fourcc('a', 'B', 'A', '8')
 643 #define V4L2_PIX_FMT_SGBRG10ALAW8 v4l2_fourcc('a', 'G', 'A', '8')
 644 #define V4L2_PIX_FMT_SGRBG10ALAW8 v4l2_fourcc('a', 'g', 'A', '8')
 645 #define V4L2_PIX_FMT_SRGGB10ALAW8 v4l2_fourcc('a', 'R', 'A', '8')
 646         /* 10bit raw bayer DPCM compressed to 8 bits */
 647 #define V4L2_PIX_FMT_SBGGR10DPCM8 v4l2_fourcc('b', 'B', 'A', '8')
 648 #define V4L2_PIX_FMT_SGBRG10DPCM8 v4l2_fourcc('b', 'G', 'A', '8')
 649 #define V4L2_PIX_FMT_SGRBG10DPCM8 v4l2_fourcc('B', 'D', '1', '0')
 650 #define V4L2_PIX_FMT_SRGGB10DPCM8 v4l2_fourcc('b', 'R', 'A', '8')
 651 #define V4L2_PIX_FMT_SBGGR12 v4l2_fourcc('B', 'G', '1', '2') /* 12  BGBG.. GRGR.. */
 652 #define V4L2_PIX_FMT_SGBRG12 v4l2_fourcc('G', 'B', '1', '2') /* 12  GBGB.. RGRG.. */
 653 #define V4L2_PIX_FMT_SGRBG12 v4l2_fourcc('B', 'A', '1', '2') /* 12  GRGR.. BGBG.. */
 654 #define V4L2_PIX_FMT_SRGGB12 v4l2_fourcc('R', 'G', '1', '2') /* 12  RGRG.. GBGB.. */
 655         /* 12bit raw bayer packed, 6 bytes for every 4 pixels */
 656 #define V4L2_PIX_FMT_SBGGR12P v4l2_fourcc('p', 'B', 'C', 'C')
 657 #define V4L2_PIX_FMT_SGBRG12P v4l2_fourcc('p', 'G', 'C', 'C')
 658 #define V4L2_PIX_FMT_SGRBG12P v4l2_fourcc('p', 'g', 'C', 'C')
 659 #define V4L2_PIX_FMT_SRGGB12P v4l2_fourcc('p', 'R', 'C', 'C')
 660         /* 14bit raw bayer packed, 7 bytes for every 4 pixels */
 661 #define V4L2_PIX_FMT_SBGGR14P v4l2_fourcc('p', 'B', 'E', 'E')
 662 #define V4L2_PIX_FMT_SGBRG14P v4l2_fourcc('p', 'G', 'E', 'E')
 663 #define V4L2_PIX_FMT_SGRBG14P v4l2_fourcc('p', 'g', 'E', 'E')
 664 #define V4L2_PIX_FMT_SRGGB14P v4l2_fourcc('p', 'R', 'E', 'E')
 665 #define V4L2_PIX_FMT_SBGGR16 v4l2_fourcc('B', 'Y', 'R', '2') /* 16  BGBG.. GRGR.. */
 666 #define V4L2_PIX_FMT_SGBRG16 v4l2_fourcc('G', 'B', '1', '6') /* 16  GBGB.. RGRG.. */
 667 #define V4L2_PIX_FMT_SGRBG16 v4l2_fourcc('G', 'R', '1', '6') /* 16  GRGR.. BGBG.. */
 668 #define V4L2_PIX_FMT_SRGGB16 v4l2_fourcc('R', 'G', '1', '6') /* 16  RGRG.. GBGB.. */
 669 
 670 /* HSV formats */
 671 #define V4L2_PIX_FMT_HSV24 v4l2_fourcc('H', 'S', 'V', '3')
 672 #define V4L2_PIX_FMT_HSV32 v4l2_fourcc('H', 'S', 'V', '4')
 673 
 674 /* compressed formats */
 675 #define V4L2_PIX_FMT_MJPEG    v4l2_fourcc('M', 'J', 'P', 'G') /* Motion-JPEG   */
 676 #define V4L2_PIX_FMT_JPEG     v4l2_fourcc('J', 'P', 'E', 'G') /* JFIF JPEG     */
 677 #define V4L2_PIX_FMT_DV       v4l2_fourcc('d', 'v', 's', 'd') /* 1394          */
 678 #define V4L2_PIX_FMT_MPEG     v4l2_fourcc('M', 'P', 'E', 'G') /* MPEG-1/2/4 Multiplexed */
 679 #define V4L2_PIX_FMT_H264     v4l2_fourcc('H', '2', '6', '4') /* H264 with start codes */
 680 #define V4L2_PIX_FMT_H264_NO_SC v4l2_fourcc('A', 'V', 'C', '1') /* H264 without start codes */
 681 #define V4L2_PIX_FMT_H264_MVC v4l2_fourcc('M', '2', '6', '4') /* H264 MVC */
 682 #define V4L2_PIX_FMT_H263     v4l2_fourcc('H', '2', '6', '3') /* H263          */
 683 #define V4L2_PIX_FMT_MPEG1    v4l2_fourcc('M', 'P', 'G', '1') /* MPEG-1 ES     */
 684 #define V4L2_PIX_FMT_MPEG2    v4l2_fourcc('M', 'P', 'G', '2') /* MPEG-2 ES     */
 685 #define V4L2_PIX_FMT_MPEG2_SLICE v4l2_fourcc('M', 'G', '2', 'S') /* MPEG-2 parsed slice data */
 686 #define V4L2_PIX_FMT_MPEG4    v4l2_fourcc('M', 'P', 'G', '4') /* MPEG-4 part 2 ES */
 687 #define V4L2_PIX_FMT_XVID     v4l2_fourcc('X', 'V', 'I', 'D') /* Xvid           */
 688 #define V4L2_PIX_FMT_VC1_ANNEX_G v4l2_fourcc('V', 'C', '1', 'G') /* SMPTE 421M Annex G compliant stream */
 689 #define V4L2_PIX_FMT_VC1_ANNEX_L v4l2_fourcc('V', 'C', '1', 'L') /* SMPTE 421M Annex L compliant stream */
 690 #define V4L2_PIX_FMT_VP8      v4l2_fourcc('V', 'P', '8', '0') /* VP8 */
 691 #define V4L2_PIX_FMT_VP9      v4l2_fourcc('V', 'P', '9', '0') /* VP9 */
 692 #define V4L2_PIX_FMT_HEVC     v4l2_fourcc('H', 'E', 'V', 'C') /* HEVC aka H.265 */
 693 #define V4L2_PIX_FMT_FWHT     v4l2_fourcc('F', 'W', 'H', 'T') /* Fast Walsh Hadamard Transform (vicodec) */
 694 #define V4L2_PIX_FMT_FWHT_STATELESS     v4l2_fourcc('S', 'F', 'W', 'H') /* Stateless FWHT (vicodec) */
 695 
 696 /*  Vendor-specific formats   */
 697 #define V4L2_PIX_FMT_CPIA1    v4l2_fourcc('C', 'P', 'I', 'A') /* cpia1 YUV */
 698 #define V4L2_PIX_FMT_WNVA     v4l2_fourcc('W', 'N', 'V', 'A') /* Winnov hw compress */
 699 #define V4L2_PIX_FMT_SN9C10X  v4l2_fourcc('S', '9', '1', '0') /* SN9C10x compression */
 700 #define V4L2_PIX_FMT_SN9C20X_I420 v4l2_fourcc('S', '9', '2', '0') /* SN9C20x YUV 4:2:0 */
 701 #define V4L2_PIX_FMT_PWC1     v4l2_fourcc('P', 'W', 'C', '1') /* pwc older webcam */
 702 #define V4L2_PIX_FMT_PWC2     v4l2_fourcc('P', 'W', 'C', '2') /* pwc newer webcam */
 703 #define V4L2_PIX_FMT_ET61X251 v4l2_fourcc('E', '6', '2', '5') /* ET61X251 compression */
 704 #define V4L2_PIX_FMT_SPCA501  v4l2_fourcc('S', '5', '0', '1') /* YUYV per line */
 705 #define V4L2_PIX_FMT_SPCA505  v4l2_fourcc('S', '5', '0', '5') /* YYUV per line */
 706 #define V4L2_PIX_FMT_SPCA508  v4l2_fourcc('S', '5', '0', '8') /* YUVY per line */
 707 #define V4L2_PIX_FMT_SPCA561  v4l2_fourcc('S', '5', '6', '1') /* compressed GBRG bayer */
 708 #define V4L2_PIX_FMT_PAC207   v4l2_fourcc('P', '2', '0', '7') /* compressed BGGR bayer */
 709 #define V4L2_PIX_FMT_MR97310A v4l2_fourcc('M', '3', '1', '0') /* compressed BGGR bayer */
 710 #define V4L2_PIX_FMT_JL2005BCD v4l2_fourcc('J', 'L', '2', '0') /* compressed RGGB bayer */
 711 #define V4L2_PIX_FMT_SN9C2028 v4l2_fourcc('S', 'O', 'N', 'X') /* compressed GBRG bayer */
 712 #define V4L2_PIX_FMT_SQ905C   v4l2_fourcc('9', '0', '5', 'C') /* compressed RGGB bayer */
 713 #define V4L2_PIX_FMT_PJPG     v4l2_fourcc('P', 'J', 'P', 'G') /* Pixart 73xx JPEG */
 714 #define V4L2_PIX_FMT_OV511    v4l2_fourcc('O', '5', '1', '1') /* ov511 JPEG */
 715 #define V4L2_PIX_FMT_OV518    v4l2_fourcc('O', '5', '1', '8') /* ov518 JPEG */
 716 #define V4L2_PIX_FMT_STV0680  v4l2_fourcc('S', '6', '8', '0') /* stv0680 bayer */
 717 #define V4L2_PIX_FMT_TM6000   v4l2_fourcc('T', 'M', '6', '0') /* tm5600/tm60x0 */
 718 #define V4L2_PIX_FMT_CIT_YYVYUY v4l2_fourcc('C', 'I', 'T', 'V') /* one line of Y then 1 line of VYUY */
 719 #define V4L2_PIX_FMT_KONICA420  v4l2_fourcc('K', 'O', 'N', 'I') /* YUV420 planar in blocks of 256 pixels */
 720 #define V4L2_PIX_FMT_JPGL       v4l2_fourcc('J', 'P', 'G', 'L') /* JPEG-Lite */
 721 #define V4L2_PIX_FMT_SE401      v4l2_fourcc('S', '4', '0', '1') /* se401 janggu compressed rgb */
 722 #define V4L2_PIX_FMT_S5C_UYVY_JPG v4l2_fourcc('S', '5', 'C', 'I') /* S5C73M3 interleaved UYVY/JPEG */
 723 #define V4L2_PIX_FMT_Y8I      v4l2_fourcc('Y', '8', 'I', ' ') /* Greyscale 8-bit L/R interleaved */
 724 #define V4L2_PIX_FMT_Y12I     v4l2_fourcc('Y', '1', '2', 'I') /* Greyscale 12-bit L/R interleaved */
 725 #define V4L2_PIX_FMT_Z16      v4l2_fourcc('Z', '1', '6', ' ') /* Depth data 16-bit */
 726 #define V4L2_PIX_FMT_MT21C    v4l2_fourcc('M', 'T', '2', '1') /* Mediatek compressed block mode  */
 727 #define V4L2_PIX_FMT_INZI     v4l2_fourcc('I', 'N', 'Z', 'I') /* Intel Planar Greyscale 10-bit and Depth 16-bit */
 728 #define V4L2_PIX_FMT_SUNXI_TILED_NV12 v4l2_fourcc('S', 'T', '1', '2') /* Sunxi Tiled NV12 Format */
 729 #define V4L2_PIX_FMT_CNF4     v4l2_fourcc('C', 'N', 'F', '4') /* Intel 4-bit packed depth confidence information */
 730 
 731 /* 10bit raw bayer packed, 32 bytes for every 25 pixels, last LSB 6 bits unused */
 732 #define V4L2_PIX_FMT_IPU3_SBGGR10       v4l2_fourcc('i', 'p', '3', 'b') /* IPU3 packed 10-bit BGGR bayer */
 733 #define V4L2_PIX_FMT_IPU3_SGBRG10       v4l2_fourcc('i', 'p', '3', 'g') /* IPU3 packed 10-bit GBRG bayer */
 734 #define V4L2_PIX_FMT_IPU3_SGRBG10       v4l2_fourcc('i', 'p', '3', 'G') /* IPU3 packed 10-bit GRBG bayer */
 735 #define V4L2_PIX_FMT_IPU3_SRGGB10       v4l2_fourcc('i', 'p', '3', 'r') /* IPU3 packed 10-bit RGGB bayer */
 736 
 737 /* SDR formats - used only for Software Defined Radio devices */
 738 #define V4L2_SDR_FMT_CU8          v4l2_fourcc('C', 'U', '0', '8') /* IQ u8 */
 739 #define V4L2_SDR_FMT_CU16LE       v4l2_fourcc('C', 'U', '1', '6') /* IQ u16le */
 740 #define V4L2_SDR_FMT_CS8          v4l2_fourcc('C', 'S', '0', '8') /* complex s8 */
 741 #define V4L2_SDR_FMT_CS14LE       v4l2_fourcc('C', 'S', '1', '4') /* complex s14le */
 742 #define V4L2_SDR_FMT_RU12LE       v4l2_fourcc('R', 'U', '1', '2') /* real u12le */
 743 #define V4L2_SDR_FMT_PCU16BE      v4l2_fourcc('P', 'C', '1', '6') /* planar complex u16be */
 744 #define V4L2_SDR_FMT_PCU18BE      v4l2_fourcc('P', 'C', '1', '8') /* planar complex u18be */
 745 #define V4L2_SDR_FMT_PCU20BE      v4l2_fourcc('P', 'C', '2', '0') /* planar complex u20be */
 746 
 747 /* Touch formats - used for Touch devices */
 748 #define V4L2_TCH_FMT_DELTA_TD16 v4l2_fourcc('T', 'D', '1', '6') /* 16-bit signed deltas */
 749 #define V4L2_TCH_FMT_DELTA_TD08 v4l2_fourcc('T', 'D', '0', '8') /* 8-bit signed deltas */
 750 #define V4L2_TCH_FMT_TU16       v4l2_fourcc('T', 'U', '1', '6') /* 16-bit unsigned touch data */
 751 #define V4L2_TCH_FMT_TU08       v4l2_fourcc('T', 'U', '0', '8') /* 8-bit unsigned touch data */
 752 
 753 /* Meta-data formats */
 754 #define V4L2_META_FMT_VSP1_HGO    v4l2_fourcc('V', 'S', 'P', 'H') /* R-Car VSP1 1-D Histogram */
 755 #define V4L2_META_FMT_VSP1_HGT    v4l2_fourcc('V', 'S', 'P', 'T') /* R-Car VSP1 2-D Histogram */
 756 #define V4L2_META_FMT_UVC         v4l2_fourcc('U', 'V', 'C', 'H') /* UVC Payload Header metadata */
 757 #define V4L2_META_FMT_D4XX        v4l2_fourcc('D', '4', 'X', 'X') /* D4XX Payload Header metadata */
 758 
 759 /* priv field value to indicates that subsequent fields are valid. */
 760 #define V4L2_PIX_FMT_PRIV_MAGIC         0xfeedcafe
 761 
 762 /* Flags */
 763 #define V4L2_PIX_FMT_FLAG_PREMUL_ALPHA  0x00000001
 764 
 765 /*
 766  *      F O R M A T   E N U M E R A T I O N
 767  */
 768 struct v4l2_fmtdesc {
 769         __u32               index;             /* Format number      */
 770         __u32               type;              /* enum v4l2_buf_type */
 771         __u32               flags;
 772         __u8                description[32];   /* Description string */
 773         __u32               pixelformat;       /* Format fourcc      */
 774         __u32               reserved[4];
 775 };
 776 
 777 #define V4L2_FMT_FLAG_COMPRESSED                0x0001
 778 #define V4L2_FMT_FLAG_EMULATED                  0x0002
 779 #define V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM     0x0004
 780 #define V4L2_FMT_FLAG_DYN_RESOLUTION            0x0008
 781 
 782         /* Frame Size and frame rate enumeration */
 783 /*
 784  *      F R A M E   S I Z E   E N U M E R A T I O N
 785  */
 786 enum v4l2_frmsizetypes {
 787         V4L2_FRMSIZE_TYPE_DISCRETE      = 1,
 788         V4L2_FRMSIZE_TYPE_CONTINUOUS    = 2,
 789         V4L2_FRMSIZE_TYPE_STEPWISE      = 3,
 790 };
 791 
 792 struct v4l2_frmsize_discrete {
 793         __u32                   width;          /* Frame width [pixel] */
 794         __u32                   height;         /* Frame height [pixel] */
 795 };
 796 
 797 struct v4l2_frmsize_stepwise {
 798         __u32                   min_width;      /* Minimum frame width [pixel] */
 799         __u32                   max_width;      /* Maximum frame width [pixel] */
 800         __u32                   step_width;     /* Frame width step size [pixel] */
 801         __u32                   min_height;     /* Minimum frame height [pixel] */
 802         __u32                   max_height;     /* Maximum frame height [pixel] */
 803         __u32                   step_height;    /* Frame height step size [pixel] */
 804 };
 805 
 806 struct v4l2_frmsizeenum {
 807         __u32                   index;          /* Frame size number */
 808         __u32                   pixel_format;   /* Pixel format */
 809         __u32                   type;           /* Frame size type the device supports. */
 810 
 811         union {                                 /* Frame size */
 812                 struct v4l2_frmsize_discrete    discrete;
 813                 struct v4l2_frmsize_stepwise    stepwise;
 814         };
 815 
 816         __u32   reserved[2];                    /* Reserved space for future use */
 817 };
 818 
 819 /*
 820  *      F R A M E   R A T E   E N U M E R A T I O N
 821  */
 822 enum v4l2_frmivaltypes {
 823         V4L2_FRMIVAL_TYPE_DISCRETE      = 1,
 824         V4L2_FRMIVAL_TYPE_CONTINUOUS    = 2,
 825         V4L2_FRMIVAL_TYPE_STEPWISE      = 3,
 826 };
 827 
 828 struct v4l2_frmival_stepwise {
 829         struct v4l2_fract       min;            /* Minimum frame interval [s] */
 830         struct v4l2_fract       max;            /* Maximum frame interval [s] */
 831         struct v4l2_fract       step;           /* Frame interval step size [s] */
 832 };
 833 
 834 struct v4l2_frmivalenum {
 835         __u32                   index;          /* Frame format index */
 836         __u32                   pixel_format;   /* Pixel format */
 837         __u32                   width;          /* Frame width */
 838         __u32                   height;         /* Frame height */
 839         __u32                   type;           /* Frame interval type the device supports. */
 840 
 841         union {                                 /* Frame interval */
 842                 struct v4l2_fract               discrete;
 843                 struct v4l2_frmival_stepwise    stepwise;
 844         };
 845 
 846         __u32   reserved[2];                    /* Reserved space for future use */
 847 };
 848 
 849 /*
 850  *      T I M E C O D E
 851  */
 852 struct v4l2_timecode {
 853         __u32   type;
 854         __u32   flags;
 855         __u8    frames;
 856         __u8    seconds;
 857         __u8    minutes;
 858         __u8    hours;
 859         __u8    userbits[4];
 860 };
 861 
 862 /*  Type  */
 863 #define V4L2_TC_TYPE_24FPS              1
 864 #define V4L2_TC_TYPE_25FPS              2
 865 #define V4L2_TC_TYPE_30FPS              3
 866 #define V4L2_TC_TYPE_50FPS              4
 867 #define V4L2_TC_TYPE_60FPS              5
 868 
 869 /*  Flags  */
 870 #define V4L2_TC_FLAG_DROPFRAME          0x0001 /* "drop-frame" mode */
 871 #define V4L2_TC_FLAG_COLORFRAME         0x0002
 872 #define V4L2_TC_USERBITS_field          0x000C
 873 #define V4L2_TC_USERBITS_USERDEFINED    0x0000
 874 #define V4L2_TC_USERBITS_8BITCHARS      0x0008
 875 /* The above is based on SMPTE timecodes */
 876 
 877 struct v4l2_jpegcompression {
 878         int quality;
 879 
 880         int  APPn;              /* Number of APP segment to be written,
 881                                  * must be 0..15 */
 882         int  APP_len;           /* Length of data in JPEG APPn segment */
 883         char APP_data[60];      /* Data in the JPEG APPn segment. */
 884 
 885         int  COM_len;           /* Length of data in JPEG COM segment */
 886         char COM_data[60];      /* Data in JPEG COM segment */
 887 
 888         __u32 jpeg_markers;     /* Which markers should go into the JPEG
 889                                  * output. Unless you exactly know what
 890                                  * you do, leave them untouched.
 891                                  * Including less markers will make the
 892                                  * resulting code smaller, but there will
 893                                  * be fewer applications which can read it.
 894                                  * The presence of the APP and COM marker
 895                                  * is influenced by APP_len and COM_len
 896                                  * ONLY, not by this property! */
 897 
 898 #define V4L2_JPEG_MARKER_DHT (1<<3)    /* Define Huffman Tables */
 899 #define V4L2_JPEG_MARKER_DQT (1<<4)    /* Define Quantization Tables */
 900 #define V4L2_JPEG_MARKER_DRI (1<<5)    /* Define Restart Interval */
 901 #define V4L2_JPEG_MARKER_COM (1<<6)    /* Comment segment */
 902 #define V4L2_JPEG_MARKER_APP (1<<7)    /* App segment, driver will
 903                                         * always use APP0 */
 904 };
 905 
 906 /*
 907  *      M E M O R Y - M A P P I N G   B U F F E R S
 908  */
 909 struct v4l2_requestbuffers {
 910         __u32                   count;
 911         __u32                   type;           /* enum v4l2_buf_type */
 912         __u32                   memory;         /* enum v4l2_memory */
 913         __u32                   capabilities;
 914         __u32                   reserved[1];
 915 };
 916 
 917 /* capabilities for struct v4l2_requestbuffers and v4l2_create_buffers */
 918 #define V4L2_BUF_CAP_SUPPORTS_MMAP      (1 << 0)
 919 #define V4L2_BUF_CAP_SUPPORTS_USERPTR   (1 << 1)
 920 #define V4L2_BUF_CAP_SUPPORTS_DMABUF    (1 << 2)
 921 #define V4L2_BUF_CAP_SUPPORTS_REQUESTS  (1 << 3)
 922 #define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)
 923 
 924 /**
 925  * struct v4l2_plane - plane info for multi-planar buffers
 926  * @bytesused:          number of bytes occupied by data in the plane (payload)
 927  * @length:             size of this plane (NOT the payload) in bytes
 928  * @mem_offset:         when memory in the associated struct v4l2_buffer is
 929  *                      V4L2_MEMORY_MMAP, equals the offset from the start of
 930  *                      the device memory for this plane (or is a "cookie" that
 931  *                      should be passed to mmap() called on the video node)
 932  * @userptr:            when memory is V4L2_MEMORY_USERPTR, a userspace pointer
 933  *                      pointing to this plane
 934  * @fd:                 when memory is V4L2_MEMORY_DMABUF, a userspace file
 935  *                      descriptor associated with this plane
 936  * @data_offset:        offset in the plane to the start of data; usually 0,
 937  *                      unless there is a header in front of the data
 938  *
 939  * Multi-planar buffers consist of one or more planes, e.g. an YCbCr buffer
 940  * with two planes can have one plane for Y, and another for interleaved CbCr
 941  * components. Each plane can reside in a separate memory buffer, or even in
 942  * a completely separate memory node (e.g. in embedded devices).
 943  */
 944 struct v4l2_plane {
 945         __u32                   bytesused;
 946         __u32                   length;
 947         union {
 948                 __u32           mem_offset;
 949                 unsigned long   userptr;
 950                 __s32           fd;
 951         } m;
 952         __u32                   data_offset;
 953         __u32                   reserved[11];
 954 };
 955 
 956 /**
 957  * struct v4l2_buffer - video buffer info
 958  * @index:      id number of the buffer
 959  * @type:       enum v4l2_buf_type; buffer type (type == *_MPLANE for
 960  *              multiplanar buffers);
 961  * @bytesused:  number of bytes occupied by data in the buffer (payload);
 962  *              unused (set to 0) for multiplanar buffers
 963  * @flags:      buffer informational flags
 964  * @field:      enum v4l2_field; field order of the image in the buffer
 965  * @timestamp:  frame timestamp
 966  * @timecode:   frame timecode
 967  * @sequence:   sequence count of this frame
 968  * @memory:     enum v4l2_memory; the method, in which the actual video data is
 969  *              passed
 970  * @offset:     for non-multiplanar buffers with memory == V4L2_MEMORY_MMAP;
 971  *              offset from the start of the device memory for this plane,
 972  *              (or a "cookie" that should be passed to mmap() as offset)
 973  * @userptr:    for non-multiplanar buffers with memory == V4L2_MEMORY_USERPTR;
 974  *              a userspace pointer pointing to this buffer
 975  * @fd:         for non-multiplanar buffers with memory == V4L2_MEMORY_DMABUF;
 976  *              a userspace file descriptor associated with this buffer
 977  * @planes:     for multiplanar buffers; userspace pointer to the array of plane
 978  *              info structs for this buffer
 979  * @length:     size in bytes of the buffer (NOT its payload) for single-plane
 980  *              buffers (when type != *_MPLANE); number of elements in the
 981  *              planes array for multi-plane buffers
 982  * @request_fd: fd of the request that this buffer should use
 983  *
 984  * Contains data exchanged by application and driver using one of the Streaming
 985  * I/O methods.
 986  */
 987 struct v4l2_buffer {
 988         __u32                   index;
 989         __u32                   type;
 990         __u32                   bytesused;
 991         __u32                   flags;
 992         __u32                   field;
 993         struct timeval          timestamp;
 994         struct v4l2_timecode    timecode;
 995         __u32                   sequence;
 996 
 997         /* memory location */
 998         __u32                   memory;
 999         union {
1000                 __u32           offset;
1001                 unsigned long   userptr;
1002                 struct v4l2_plane *planes;
1003                 __s32           fd;
1004         } m;
1005         __u32                   length;
1006         __u32                   reserved2;
1007         union {
1008                 __s32           request_fd;
1009                 __u32           reserved;
1010         };
1011 };
1012 
1013 /**
1014  * v4l2_timeval_to_ns - Convert timeval to nanoseconds
1015  * @ts:         pointer to the timeval variable to be converted
1016  *
1017  * Returns the scalar nanosecond representation of the timeval
1018  * parameter.
1019  */
1020 static inline __u64 v4l2_timeval_to_ns(const struct timeval *tv)
1021 {
1022         return (__u64)tv->tv_sec * 1000000000ULL + tv->tv_usec * 1000;
1023 }
1024 
1025 /*  Flags for 'flags' field */
1026 /* Buffer is mapped (flag) */
1027 #define V4L2_BUF_FLAG_MAPPED                    0x00000001
1028 /* Buffer is queued for processing */
1029 #define V4L2_BUF_FLAG_QUEUED                    0x00000002
1030 /* Buffer is ready */
1031 #define V4L2_BUF_FLAG_DONE                      0x00000004
1032 /* Image is a keyframe (I-frame) */
1033 #define V4L2_BUF_FLAG_KEYFRAME                  0x00000008
1034 /* Image is a P-frame */
1035 #define V4L2_BUF_FLAG_PFRAME                    0x00000010
1036 /* Image is a B-frame */
1037 #define V4L2_BUF_FLAG_BFRAME                    0x00000020
1038 /* Buffer is ready, but the data contained within is corrupted. */
1039 #define V4L2_BUF_FLAG_ERROR                     0x00000040
1040 /* Buffer is added to an unqueued request */
1041 #define V4L2_BUF_FLAG_IN_REQUEST                0x00000080
1042 /* timecode field is valid */
1043 #define V4L2_BUF_FLAG_TIMECODE                  0x00000100
1044 /* Buffer is prepared for queuing */
1045 #define V4L2_BUF_FLAG_PREPARED                  0x00000400
1046 /* Cache handling flags */
1047 #define V4L2_BUF_FLAG_NO_CACHE_INVALIDATE       0x00000800
1048 #define V4L2_BUF_FLAG_NO_CACHE_CLEAN            0x00001000
1049 /* Timestamp type */
1050 #define V4L2_BUF_FLAG_TIMESTAMP_MASK            0x0000e000
1051 #define V4L2_BUF_FLAG_TIMESTAMP_UNKNOWN         0x00000000
1052 #define V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC       0x00002000
1053 #define V4L2_BUF_FLAG_TIMESTAMP_COPY            0x00004000
1054 /* Timestamp sources. */
1055 #define V4L2_BUF_FLAG_TSTAMP_SRC_MASK           0x00070000
1056 #define V4L2_BUF_FLAG_TSTAMP_SRC_EOF            0x00000000
1057 #define V4L2_BUF_FLAG_TSTAMP_SRC_SOE            0x00010000
1058 /* mem2mem encoder/decoder */
1059 #define V4L2_BUF_FLAG_LAST                      0x00100000
1060 /* request_fd is valid */
1061 #define V4L2_BUF_FLAG_REQUEST_FD                0x00800000
1062 
1063 /**
1064  * struct v4l2_exportbuffer - export of video buffer as DMABUF file descriptor
1065  *
1066  * @index:      id number of the buffer
1067  * @type:       enum v4l2_buf_type; buffer type (type == *_MPLANE for
1068  *              multiplanar buffers);
1069  * @plane:      index of the plane to be exported, 0 for single plane queues
1070  * @flags:      flags for newly created file, currently only O_CLOEXEC is
1071  *              supported, refer to manual of open syscall for more details
1072  * @fd:         file descriptor associated with DMABUF (set by driver)
1073  *
1074  * Contains data used for exporting a video buffer as DMABUF file descriptor.
1075  * The buffer is identified by a 'cookie' returned by VIDIOC_QUERYBUF
1076  * (identical to the cookie used to mmap() the buffer to userspace). All
1077  * reserved fields must be set to zero. The field reserved0 is expected to
1078  * become a structure 'type' allowing an alternative layout of the structure
1079  * content. Therefore this field should not be used for any other extensions.
1080  */
1081 struct v4l2_exportbuffer {
1082         __u32           type; /* enum v4l2_buf_type */
1083         __u32           index;
1084         __u32           plane;
1085         __u32           flags;
1086         __s32           fd;
1087         __u32           reserved[11];
1088 };
1089 
1090 /*
1091  *      O V E R L A Y   P R E V I E W
1092  */
1093 struct v4l2_framebuffer {
1094         __u32                   capability;
1095         __u32                   flags;
1096 /* FIXME: in theory we should pass something like PCI device + memory
1097  * region + offset instead of some physical address */
1098         void                    *base;
1099         struct {
1100                 __u32           width;
1101                 __u32           height;
1102                 __u32           pixelformat;
1103                 __u32           field;          /* enum v4l2_field */
1104                 __u32           bytesperline;   /* for padding, zero if unused */
1105                 __u32           sizeimage;
1106                 __u32           colorspace;     /* enum v4l2_colorspace */
1107                 __u32           priv;           /* reserved field, set to 0 */
1108         } fmt;
1109 };
1110 /*  Flags for the 'capability' field. Read only */
1111 #define V4L2_FBUF_CAP_EXTERNOVERLAY     0x0001
1112 #define V4L2_FBUF_CAP_CHROMAKEY         0x0002
1113 #define V4L2_FBUF_CAP_LIST_CLIPPING     0x0004
1114 #define V4L2_FBUF_CAP_BITMAP_CLIPPING   0x0008
1115 #define V4L2_FBUF_CAP_LOCAL_ALPHA       0x0010
1116 #define V4L2_FBUF_CAP_GLOBAL_ALPHA      0x0020
1117 #define V4L2_FBUF_CAP_LOCAL_INV_ALPHA   0x0040
1118 #define V4L2_FBUF_CAP_SRC_CHROMAKEY     0x0080
1119 /*  Flags for the 'flags' field. */
1120 #define V4L2_FBUF_FLAG_PRIMARY          0x0001
1121 #define V4L2_FBUF_FLAG_OVERLAY          0x0002
1122 #define V4L2_FBUF_FLAG_CHROMAKEY        0x0004
1123 #define V4L2_FBUF_FLAG_LOCAL_ALPHA      0x0008
1124 #define V4L2_FBUF_FLAG_GLOBAL_ALPHA     0x0010
1125 #define V4L2_FBUF_FLAG_LOCAL_INV_ALPHA  0x0020
1126 #define V4L2_FBUF_FLAG_SRC_CHROMAKEY    0x0040
1127 
1128 struct v4l2_clip {
1129         struct v4l2_rect        c;
1130         struct v4l2_clip        __user *next;
1131 };
1132 
1133 struct v4l2_window {
1134         struct v4l2_rect        w;
1135         __u32                   field;   /* enum v4l2_field */
1136         __u32                   chromakey;
1137         struct v4l2_clip        __user *clips;
1138         __u32                   clipcount;
1139         void                    __user *bitmap;
1140         __u8                    global_alpha;
1141 };
1142 
1143 /*
1144  *      C A P T U R E   P A R A M E T E R S
1145  */
1146 struct v4l2_captureparm {
1147         __u32              capability;    /*  Supported modes */
1148         __u32              capturemode;   /*  Current mode */
1149         struct v4l2_fract  timeperframe;  /*  Time per frame in seconds */
1150         __u32              extendedmode;  /*  Driver-specific extensions */
1151         __u32              readbuffers;   /*  # of buffers for read */
1152         __u32              reserved[4];
1153 };
1154 
1155 /*  Flags for 'capability' and 'capturemode' fields */
1156 #define V4L2_MODE_HIGHQUALITY   0x0001  /*  High quality imaging mode */
1157 #define V4L2_CAP_TIMEPERFRAME   0x1000  /*  timeperframe field is supported */
1158 
1159 struct v4l2_outputparm {
1160         __u32              capability;   /*  Supported modes */
1161         __u32              outputmode;   /*  Current mode */
1162         struct v4l2_fract  timeperframe; /*  Time per frame in seconds */
1163         __u32              extendedmode; /*  Driver-specific extensions */
1164         __u32              writebuffers; /*  # of buffers for write */
1165         __u32              reserved[4];
1166 };
1167 
1168 /*
1169  *      I N P U T   I M A G E   C R O P P I N G
1170  */
1171 struct v4l2_cropcap {
1172         __u32                   type;   /* enum v4l2_buf_type */
1173         struct v4l2_rect        bounds;
1174         struct v4l2_rect        defrect;
1175         struct v4l2_fract       pixelaspect;
1176 };
1177 
1178 struct v4l2_crop {
1179         __u32                   type;   /* enum v4l2_buf_type */
1180         struct v4l2_rect        c;
1181 };
1182 
1183 /**
1184  * struct v4l2_selection - selection info
1185  * @type:       buffer type (do not use *_MPLANE types)
1186  * @target:     Selection target, used to choose one of possible rectangles;
1187  *              defined in v4l2-common.h; V4L2_SEL_TGT_* .
1188  * @flags:      constraints flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*.
1189  * @r:          coordinates of selection window
1190  * @reserved:   for future use, rounds structure size to 64 bytes, set to zero
1191  *
1192  * Hardware may use multiple helper windows to process a video stream.
1193  * The structure is used to exchange this selection areas between
1194  * an application and a driver.
1195  */
1196 struct v4l2_selection {
1197         __u32                   type;
1198         __u32                   target;
1199         __u32                   flags;
1200         struct v4l2_rect        r;
1201         __u32                   reserved[9];
1202 };
1203 
1204 
1205 /*
1206  *      A N A L O G   V I D E O   S T A N D A R D
1207  */
1208 
1209 typedef __u64 v4l2_std_id;
1210 
1211 /* one bit for each */
1212 #define V4L2_STD_PAL_B          ((v4l2_std_id)0x00000001)
1213 #define V4L2_STD_PAL_B1         ((v4l2_std_id)0x00000002)
1214 #define V4L2_STD_PAL_G          ((v4l2_std_id)0x00000004)
1215 #define V4L2_STD_PAL_H          ((v4l2_std_id)0x00000008)
1216 #define V4L2_STD_PAL_I          ((v4l2_std_id)0x00000010)
1217 #define V4L2_STD_PAL_D          ((v4l2_std_id)0x00000020)
1218 #define V4L2_STD_PAL_D1         ((v4l2_std_id)0x00000040)
1219 #define V4L2_STD_PAL_K          ((v4l2_std_id)0x00000080)
1220 
1221 #define V4L2_STD_PAL_M          ((v4l2_std_id)0x00000100)
1222 #define V4L2_STD_PAL_N          ((v4l2_std_id)0x00000200)
1223 #define V4L2_STD_PAL_Nc         ((v4l2_std_id)0x00000400)
1224 #define V4L2_STD_PAL_60         ((v4l2_std_id)0x00000800)
1225 
1226 #define V4L2_STD_NTSC_M         ((v4l2_std_id)0x00001000)       /* BTSC */
1227 #define V4L2_STD_NTSC_M_JP      ((v4l2_std_id)0x00002000)       /* EIA-J */
1228 #define V4L2_STD_NTSC_443       ((v4l2_std_id)0x00004000)
1229 #define V4L2_STD_NTSC_M_KR      ((v4l2_std_id)0x00008000)       /* FM A2 */
1230 
1231 #define V4L2_STD_SECAM_B        ((v4l2_std_id)0x00010000)
1232 #define V4L2_STD_SECAM_D        ((v4l2_std_id)0x00020000)
1233 #define V4L2_STD_SECAM_G        ((v4l2_std_id)0x00040000)
1234 #define V4L2_STD_SECAM_H        ((v4l2_std_id)0x00080000)
1235 #define V4L2_STD_SECAM_K        ((v4l2_std_id)0x00100000)
1236 #define V4L2_STD_SECAM_K1       ((v4l2_std_id)0x00200000)
1237 #define V4L2_STD_SECAM_L        ((v4l2_std_id)0x00400000)
1238 #define V4L2_STD_SECAM_LC       ((v4l2_std_id)0x00800000)
1239 
1240 /* ATSC/HDTV */
1241 #define V4L2_STD_ATSC_8_VSB     ((v4l2_std_id)0x01000000)
1242 #define V4L2_STD_ATSC_16_VSB    ((v4l2_std_id)0x02000000)
1243 
1244 /* FIXME:
1245    Although std_id is 64 bits, there is an issue on PPC32 architecture that
1246    makes switch(__u64) to break. So, there's a hack on v4l2-common.c rounding
1247    this value to 32 bits.
1248    As, currently, the max value is for V4L2_STD_ATSC_16_VSB (30 bits wide),
1249    it should work fine. However, if needed to add more than two standards,
1250    v4l2-common.c should be fixed.
1251  */
1252 
1253 /*
1254  * Some macros to merge video standards in order to make live easier for the
1255  * drivers and V4L2 applications
1256  */
1257 
1258 /*
1259  * "Common" NTSC/M - It should be noticed that V4L2_STD_NTSC_443 is
1260  * Missing here.
1261  */
1262 #define V4L2_STD_NTSC           (V4L2_STD_NTSC_M        |\
1263                                  V4L2_STD_NTSC_M_JP     |\
1264                                  V4L2_STD_NTSC_M_KR)
1265 /* Secam macros */
1266 #define V4L2_STD_SECAM_DK       (V4L2_STD_SECAM_D       |\
1267                                  V4L2_STD_SECAM_K       |\
1268                                  V4L2_STD_SECAM_K1)
1269 /* All Secam Standards */
1270 #define V4L2_STD_SECAM          (V4L2_STD_SECAM_B       |\
1271                                  V4L2_STD_SECAM_G       |\
1272                                  V4L2_STD_SECAM_H       |\
1273                                  V4L2_STD_SECAM_DK      |\
1274                                  V4L2_STD_SECAM_L       |\
1275                                  V4L2_STD_SECAM_LC)
1276 /* PAL macros */
1277 #define V4L2_STD_PAL_BG         (V4L2_STD_PAL_B         |\
1278                                  V4L2_STD_PAL_B1        |\
1279                                  V4L2_STD_PAL_G)
1280 #define V4L2_STD_PAL_DK         (V4L2_STD_PAL_D         |\
1281                                  V4L2_STD_PAL_D1        |\
1282                                  V4L2_STD_PAL_K)
1283 /*
1284  * "Common" PAL - This macro is there to be compatible with the old
1285  * V4L1 concept of "PAL": /BGDKHI.
1286  * Several PAL standards are missing here: /M, /N and /Nc
1287  */
1288 #define V4L2_STD_PAL            (V4L2_STD_PAL_BG        |\
1289                                  V4L2_STD_PAL_DK        |\
1290                                  V4L2_STD_PAL_H         |\
1291                                  V4L2_STD_PAL_I)
1292 /* Chroma "agnostic" standards */
1293 #define V4L2_STD_B              (V4L2_STD_PAL_B         |\
1294                                  V4L2_STD_PAL_B1        |\
1295                                  V4L2_STD_SECAM_B)
1296 #define V4L2_STD_G              (V4L2_STD_PAL_G         |\
1297                                  V4L2_STD_SECAM_G)
1298 #define V4L2_STD_H              (V4L2_STD_PAL_H         |\
1299                                  V4L2_STD_SECAM_H)
1300 #define V4L2_STD_L              (V4L2_STD_SECAM_L       |\
1301                                  V4L2_STD_SECAM_LC)
1302 #define V4L2_STD_GH             (V4L2_STD_G             |\
1303                                  V4L2_STD_H)
1304 #define V4L2_STD_DK             (V4L2_STD_PAL_DK        |\
1305                                  V4L2_STD_SECAM_DK)
1306 #define V4L2_STD_BG             (V4L2_STD_B             |\
1307                                  V4L2_STD_G)
1308 #define V4L2_STD_MN             (V4L2_STD_PAL_M         |\
1309                                  V4L2_STD_PAL_N         |\
1310                                  V4L2_STD_PAL_Nc        |\
1311                                  V4L2_STD_NTSC)
1312 
1313 /* Standards where MTS/BTSC stereo could be found */
1314 #define V4L2_STD_MTS            (V4L2_STD_NTSC_M        |\
1315                                  V4L2_STD_PAL_M         |\
1316                                  V4L2_STD_PAL_N         |\
1317                                  V4L2_STD_PAL_Nc)
1318 
1319 /* Standards for Countries with 60Hz Line frequency */
1320 #define V4L2_STD_525_60         (V4L2_STD_PAL_M         |\
1321                                  V4L2_STD_PAL_60        |\
1322                                  V4L2_STD_NTSC          |\
1323                                  V4L2_STD_NTSC_443)
1324 /* Standards for Countries with 50Hz Line frequency */
1325 #define V4L2_STD_625_50         (V4L2_STD_PAL           |\
1326                                  V4L2_STD_PAL_N         |\
1327                                  V4L2_STD_PAL_Nc        |\
1328                                  V4L2_STD_SECAM)
1329 
1330 #define V4L2_STD_ATSC           (V4L2_STD_ATSC_8_VSB    |\
1331                                  V4L2_STD_ATSC_16_VSB)
1332 /* Macros with none and all analog standards */
1333 #define V4L2_STD_UNKNOWN        0
1334 #define V4L2_STD_ALL            (V4L2_STD_525_60        |\
1335                                  V4L2_STD_625_50)
1336 
1337 struct v4l2_standard {
1338         __u32                index;
1339         v4l2_std_id          id;
1340         __u8                 name[24];
1341         struct v4l2_fract    frameperiod; /* Frames, not fields */
1342         __u32                framelines;
1343         __u32                reserved[4];
1344 };
1345 
1346 /*
1347  *      D V     B T     T I M I N G S
1348  */
1349 
1350 /** struct v4l2_bt_timings - BT.656/BT.1120 timing data
1351  * @width:      total width of the active video in pixels
1352  * @height:     total height of the active video in lines
1353  * @interlaced: Interlaced or progressive
1354  * @polarities: Positive or negative polarities
1355  * @pixelclock: Pixel clock in HZ. Ex. 74.25MHz->74250000
1356  * @hfrontporch:Horizontal front porch in pixels
1357  * @hsync:      Horizontal Sync length in pixels
1358  * @hbackporch: Horizontal back porch in pixels
1359  * @vfrontporch:Vertical front porch in lines
1360  * @vsync:      Vertical Sync length in lines
1361  * @vbackporch: Vertical back porch in lines
1362  * @il_vfrontporch:Vertical front porch for the even field
1363  *              (aka field 2) of interlaced field formats
1364  * @il_vsync:   Vertical Sync length for the even field
1365  *              (aka field 2) of interlaced field formats
1366  * @il_vbackporch:Vertical back porch for the even field
1367  *              (aka field 2) of interlaced field formats
1368  * @standards:  Standards the timing belongs to
1369  * @flags:      Flags
1370  * @picture_aspect: The picture aspect ratio (hor/vert).
1371  * @cea861_vic: VIC code as per the CEA-861 standard.
1372  * @hdmi_vic:   VIC code as per the HDMI standard.
1373  * @reserved:   Reserved fields, must be zeroed.
1374  *
1375  * A note regarding vertical interlaced timings: height refers to the total
1376  * height of the active video frame (= two fields). The blanking timings refer
1377  * to the blanking of each field. So the height of the total frame is
1378  * calculated as follows:
1379  *
1380  * tot_height = height + vfrontporch + vsync + vbackporch +
1381  *                       il_vfrontporch + il_vsync + il_vbackporch
1382  *
1383  * The active height of each field is height / 2.
1384  */
1385 struct v4l2_bt_timings {
1386         __u32   width;
1387         __u32   height;
1388         __u32   interlaced;
1389         __u32   polarities;
1390         __u64   pixelclock;
1391         __u32   hfrontporch;
1392         __u32   hsync;
1393         __u32   hbackporch;
1394         __u32   vfrontporch;
1395         __u32   vsync;
1396         __u32   vbackporch;
1397         __u32   il_vfrontporch;
1398         __u32   il_vsync;
1399         __u32   il_vbackporch;
1400         __u32   standards;
1401         __u32   flags;
1402         struct v4l2_fract picture_aspect;
1403         __u8    cea861_vic;
1404         __u8    hdmi_vic;
1405         __u8    reserved[46];
1406 } __attribute__ ((packed));
1407 
1408 /* Interlaced or progressive format */
1409 #define V4L2_DV_PROGRESSIVE     0
1410 #define V4L2_DV_INTERLACED      1
1411 
1412 /* Polarities. If bit is not set, it is assumed to be negative polarity */
1413 #define V4L2_DV_VSYNC_POS_POL   0x00000001
1414 #define V4L2_DV_HSYNC_POS_POL   0x00000002
1415 
1416 /* Timings standards */
1417 #define V4L2_DV_BT_STD_CEA861   (1 << 0)  /* CEA-861 Digital TV Profile */
1418 #define V4L2_DV_BT_STD_DMT      (1 << 1)  /* VESA Discrete Monitor Timings */
1419 #define V4L2_DV_BT_STD_CVT      (1 << 2)  /* VESA Coordinated Video Timings */
1420 #define V4L2_DV_BT_STD_GTF      (1 << 3)  /* VESA Generalized Timings Formula */
1421 #define V4L2_DV_BT_STD_SDI      (1 << 4)  /* SDI Timings */
1422 
1423 /* Flags */
1424 
1425 /*
1426  * CVT/GTF specific: timing uses reduced blanking (CVT) or the 'Secondary
1427  * GTF' curve (GTF). In both cases the horizontal and/or vertical blanking
1428  * intervals are reduced, allowing a higher resolution over the same
1429  * bandwidth. This is a read-only flag.
1430  */
1431 #define V4L2_DV_FL_REDUCED_BLANKING             (1 << 0)
1432 /*
1433  * CEA-861 specific: set for CEA-861 formats with a framerate of a multiple
1434  * of six. These formats can be optionally played at 1 / 1.001 speed.
1435  * This is a read-only flag.
1436  */
1437 #define V4L2_DV_FL_CAN_REDUCE_FPS               (1 << 1)
1438 /*
1439  * CEA-861 specific: only valid for video transmitters, the flag is cleared
1440  * by receivers.
1441  * If the framerate of the format is a multiple of six, then the pixelclock
1442  * used to set up the transmitter is divided by 1.001 to make it compatible
1443  * with 60 Hz based standards such as NTSC and PAL-M that use a framerate of
1444  * 29.97 Hz. Otherwise this flag is cleared. If the transmitter can't generate
1445  * such frequencies, then the flag will also be cleared.
1446  */
1447 #define V4L2_DV_FL_REDUCED_FPS                  (1 << 2)
1448 /*
1449  * Specific to interlaced formats: if set, then field 1 is really one half-line
1450  * longer and field 2 is really one half-line shorter, so each field has
1451  * exactly the same number of half-lines. Whether half-lines can be detected
1452  * or used depends on the hardware.
1453  */
1454 #define V4L2_DV_FL_HALF_LINE                    (1 << 3)
1455 /*
1456  * If set, then this is a Consumer Electronics (CE) video format. Such formats
1457  * differ from other formats (commonly called IT formats) in that if RGB
1458  * encoding is used then by default the RGB values use limited range (i.e.
1459  * use the range 16-235) as opposed to 0-255. All formats defined in CEA-861
1460  * except for the 640x480 format are CE formats.
1461  */
1462 #define V4L2_DV_FL_IS_CE_VIDEO                  (1 << 4)
1463 /* Some formats like SMPTE-125M have an interlaced signal with a odd
1464  * total height. For these formats, if this flag is set, the first
1465  * field has the extra line. If not, it is the second field.
1466  */
1467 #define V4L2_DV_FL_FIRST_FIELD_EXTRA_LINE       (1 << 5)
1468 /*
1469  * If set, then the picture_aspect field is valid. Otherwise assume that the
1470  * pixels are square, so the picture aspect ratio is the same as the width to
1471  * height ratio.
1472  */
1473 #define V4L2_DV_FL_HAS_PICTURE_ASPECT           (1 << 6)
1474 /*
1475  * If set, then the cea861_vic field is valid and contains the Video
1476  * Identification Code as per the CEA-861 standard.
1477  */
1478 #define V4L2_DV_FL_HAS_CEA861_VIC               (1 << 7)
1479 /*
1480  * If set, then the hdmi_vic field is valid and contains the Video
1481  * Identification Code as per the HDMI standard (HDMI Vendor Specific
1482  * InfoFrame).
1483  */
1484 #define V4L2_DV_FL_HAS_HDMI_VIC                 (1 << 8)
1485 /*
1486  * CEA-861 specific: only valid for video receivers.
1487  * If set, then HW can detect the difference between regular FPS and
1488  * 1000/1001 FPS. Note: This flag is only valid for HDMI VIC codes with
1489  * the V4L2_DV_FL_CAN_REDUCE_FPS flag set.
1490  */
1491 #define V4L2_DV_FL_CAN_DETECT_REDUCED_FPS       (1 << 9)
1492 
1493 /* A few useful defines to calculate the total blanking and frame sizes */
1494 #define V4L2_DV_BT_BLANKING_WIDTH(bt) \
1495         ((bt)->hfrontporch + (bt)->hsync + (bt)->hbackporch)
1496 #define V4L2_DV_BT_FRAME_WIDTH(bt) \
1497         ((bt)->width + V4L2_DV_BT_BLANKING_WIDTH(bt))
1498 #define V4L2_DV_BT_BLANKING_HEIGHT(bt) \
1499         ((bt)->vfrontporch + (bt)->vsync + (bt)->vbackporch + \
1500          (bt)->il_vfrontporch + (bt)->il_vsync + (bt)->il_vbackporch)
1501 #define V4L2_DV_BT_FRAME_HEIGHT(bt) \
1502         ((bt)->height + V4L2_DV_BT_BLANKING_HEIGHT(bt))
1503 
1504 /** struct v4l2_dv_timings - DV timings
1505  * @type:       the type of the timings
1506  * @bt: BT656/1120 timings
1507  */
1508 struct v4l2_dv_timings {
1509         __u32 type;
1510         union {
1511                 struct v4l2_bt_timings  bt;
1512                 __u32   reserved[32];
1513         };
1514 } __attribute__ ((packed));
1515 
1516 /* Values for the type field */
1517 #define V4L2_DV_BT_656_1120     0       /* BT.656/1120 timing type */
1518 
1519 
1520 /** struct v4l2_enum_dv_timings - DV timings enumeration
1521  * @index:      enumeration index
1522  * @pad:        the pad number for which to enumerate timings (used with
1523  *              v4l-subdev nodes only)
1524  * @reserved:   must be zeroed
1525  * @timings:    the timings for the given index
1526  */
1527 struct v4l2_enum_dv_timings {
1528         __u32 index;
1529         __u32 pad;
1530         __u32 reserved[2];
1531         struct v4l2_dv_timings timings;
1532 };
1533 
1534 /** struct v4l2_bt_timings_cap - BT.656/BT.1120 timing capabilities
1535  * @min_width:          width in pixels
1536  * @max_width:          width in pixels
1537  * @min_height:         height in lines
1538  * @max_height:         height in lines
1539  * @min_pixelclock:     Pixel clock in HZ. Ex. 74.25MHz->74250000
1540  * @max_pixelclock:     Pixel clock in HZ. Ex. 74.25MHz->74250000
1541  * @standards:          Supported standards
1542  * @capabilities:       Supported capabilities
1543  * @reserved:           Must be zeroed
1544  */
1545 struct v4l2_bt_timings_cap {
1546         __u32   min_width;
1547         __u32   max_width;
1548         __u32   min_height;
1549         __u32   max_height;
1550         __u64   min_pixelclock;
1551         __u64   max_pixelclock;
1552         __u32   standards;
1553         __u32   capabilities;
1554         __u32   reserved[16];
1555 } __attribute__ ((packed));
1556 
1557 /* Supports interlaced formats */
1558 #define V4L2_DV_BT_CAP_INTERLACED       (1 << 0)
1559 /* Supports progressive formats */
1560 #define V4L2_DV_BT_CAP_PROGRESSIVE      (1 << 1)
1561 /* Supports CVT/GTF reduced blanking */
1562 #define V4L2_DV_BT_CAP_REDUCED_BLANKING (1 << 2)
1563 /* Supports custom formats */
1564 #define V4L2_DV_BT_CAP_CUSTOM           (1 << 3)
1565 
1566 /** struct v4l2_dv_timings_cap - DV timings capabilities
1567  * @type:       the type of the timings (same as in struct v4l2_dv_timings)
1568  * @pad:        the pad number for which to query capabilities (used with
1569  *              v4l-subdev nodes only)
1570  * @bt:         the BT656/1120 timings capabilities
1571  */
1572 struct v4l2_dv_timings_cap {
1573         __u32 type;
1574         __u32 pad;
1575         __u32 reserved[2];
1576         union {
1577                 struct v4l2_bt_timings_cap bt;
1578                 __u32 raw_data[32];
1579         };
1580 };
1581 
1582 
1583 /*
1584  *      V I D E O   I N P U T S
1585  */
1586 struct v4l2_input {
1587         __u32        index;             /*  Which input */
1588         __u8         name[32];          /*  Label */
1589         __u32        type;              /*  Type of input */
1590         __u32        audioset;          /*  Associated audios (bitfield) */
1591         __u32        tuner;             /*  enum v4l2_tuner_type */
1592         v4l2_std_id  std;
1593         __u32        status;
1594         __u32        capabilities;
1595         __u32        reserved[3];
1596 };
1597 
1598 /*  Values for the 'type' field */
1599 #define V4L2_INPUT_TYPE_TUNER           1
1600 #define V4L2_INPUT_TYPE_CAMERA          2
1601 #define V4L2_INPUT_TYPE_TOUCH           3
1602 
1603 /* field 'status' - general */
1604 #define V4L2_IN_ST_NO_POWER    0x00000001  /* Attached device is off */
1605 #define V4L2_IN_ST_NO_SIGNAL   0x00000002
1606 #define V4L2_IN_ST_NO_COLOR    0x00000004
1607 
1608 /* field 'status' - sensor orientation */
1609 /* If sensor is mounted upside down set both bits */
1610 #define V4L2_IN_ST_HFLIP       0x00000010 /* Frames are flipped horizontally */
1611 #define V4L2_IN_ST_VFLIP       0x00000020 /* Frames are flipped vertically */
1612 
1613 /* field 'status' - analog */
1614 #define V4L2_IN_ST_NO_H_LOCK   0x00000100  /* No horizontal sync lock */
1615 #define V4L2_IN_ST_COLOR_KILL  0x00000200  /* Color killer is active */
1616 #define V4L2_IN_ST_NO_V_LOCK   0x00000400  /* No vertical sync lock */
1617 #define V4L2_IN_ST_NO_STD_LOCK 0x00000800  /* No standard format lock */
1618 
1619 /* field 'status' - digital */
1620 #define V4L2_IN_ST_NO_SYNC     0x00010000  /* No synchronization lock */
1621 #define V4L2_IN_ST_NO_EQU      0x00020000  /* No equalizer lock */
1622 #define V4L2_IN_ST_NO_CARRIER  0x00040000  /* Carrier recovery failed */
1623 
1624 /* field 'status' - VCR and set-top box */
1625 #define V4L2_IN_ST_MACROVISION 0x01000000  /* Macrovision detected */
1626 #define V4L2_IN_ST_NO_ACCESS   0x02000000  /* Conditional access denied */
1627 #define V4L2_IN_ST_VTR         0x04000000  /* VTR time constant */
1628 
1629 /* capabilities flags */
1630 #define V4L2_IN_CAP_DV_TIMINGS          0x00000002 /* Supports S_DV_TIMINGS */
1631 #define V4L2_IN_CAP_CUSTOM_TIMINGS      V4L2_IN_CAP_DV_TIMINGS /* For compatibility */
1632 #define V4L2_IN_CAP_STD                 0x00000004 /* Supports S_STD */
1633 #define V4L2_IN_CAP_NATIVE_SIZE         0x00000008 /* Supports setting native size */
1634 
1635 /*
1636  *      V I D E O   O U T P U T S
1637  */
1638 struct v4l2_output {
1639         __u32        index;             /*  Which output */
1640         __u8         name[32];          /*  Label */
1641         __u32        type;              /*  Type of output */
1642         __u32        audioset;          /*  Associated audios (bitfield) */
1643         __u32        modulator;         /*  Associated modulator */
1644         v4l2_std_id  std;
1645         __u32        capabilities;
1646         __u32        reserved[3];
1647 };
1648 /*  Values for the 'type' field */
1649 #define V4L2_OUTPUT_TYPE_MODULATOR              1
1650 #define V4L2_OUTPUT_TYPE_ANALOG                 2
1651 #define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY       3
1652 
1653 /* capabilities flags */
1654 #define V4L2_OUT_CAP_DV_TIMINGS         0x00000002 /* Supports S_DV_TIMINGS */
1655 #define V4L2_OUT_CAP_CUSTOM_TIMINGS     V4L2_OUT_CAP_DV_TIMINGS /* For compatibility */
1656 #define V4L2_OUT_CAP_STD                0x00000004 /* Supports S_STD */
1657 #define V4L2_OUT_CAP_NATIVE_SIZE        0x00000008 /* Supports setting native size */
1658 
1659 /*
1660  *      C O N T R O L S
1661  */
1662 struct v4l2_control {
1663         __u32                id;
1664         __s32                value;
1665 };
1666 
1667 struct v4l2_ext_control {
1668         __u32 id;
1669         __u32 size;
1670         __u32 reserved2[1];
1671         union {
1672                 __s32 value;
1673                 __s64 value64;
1674                 char __user *string;
1675                 __u8 __user *p_u8;
1676                 __u16 __user *p_u16;
1677                 __u32 __user *p_u32;
1678                 void __user *ptr;
1679         };
1680 } __attribute__ ((packed));
1681 
1682 struct v4l2_ext_controls {
1683         union {
1684 #ifndef __KERNEL__
1685                 __u32 ctrl_class;
1686 #endif
1687                 __u32 which;
1688         };
1689         __u32 count;
1690         __u32 error_idx;
1691         __s32 request_fd;
1692         __u32 reserved[1];
1693         struct v4l2_ext_control *controls;
1694 };
1695 
1696 #define V4L2_CTRL_ID_MASK         (0x0fffffff)
1697 #ifndef __KERNEL__
1698 #define V4L2_CTRL_ID2CLASS(id)    ((id) & 0x0fff0000UL)
1699 #endif
1700 #define V4L2_CTRL_ID2WHICH(id)    ((id) & 0x0fff0000UL)
1701 #define V4L2_CTRL_DRIVER_PRIV(id) (((id) & 0xffff) >= 0x1000)
1702 #define V4L2_CTRL_MAX_DIMS        (4)
1703 #define V4L2_CTRL_WHICH_CUR_VAL   0
1704 #define V4L2_CTRL_WHICH_DEF_VAL   0x0f000000
1705 #define V4L2_CTRL_WHICH_REQUEST_VAL 0x0f010000
1706 
1707 enum v4l2_ctrl_type {
1708         V4L2_CTRL_TYPE_INTEGER       = 1,
1709         V4L2_CTRL_TYPE_BOOLEAN       = 2,
1710         V4L2_CTRL_TYPE_MENU          = 3,
1711         V4L2_CTRL_TYPE_BUTTON        = 4,
1712         V4L2_CTRL_TYPE_INTEGER64     = 5,
1713         V4L2_CTRL_TYPE_CTRL_CLASS    = 6,
1714         V4L2_CTRL_TYPE_STRING        = 7,
1715         V4L2_CTRL_TYPE_BITMASK       = 8,
1716         V4L2_CTRL_TYPE_INTEGER_MENU  = 9,
1717 
1718         /* Compound types are >= 0x0100 */
1719         V4L2_CTRL_COMPOUND_TYPES     = 0x0100,
1720         V4L2_CTRL_TYPE_U8            = 0x0100,
1721         V4L2_CTRL_TYPE_U16           = 0x0101,
1722         V4L2_CTRL_TYPE_U32           = 0x0102,
1723 };
1724 
1725 /*  Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
1726 struct v4l2_queryctrl {
1727         __u32                id;
1728         __u32                type;      /* enum v4l2_ctrl_type */
1729         __u8                 name[32];  /* Whatever */
1730         __s32                minimum;   /* Note signedness */
1731         __s32                maximum;
1732         __s32                step;
1733         __s32                default_value;
1734         __u32                flags;
1735         __u32                reserved[2];
1736 };
1737 
1738 /*  Used in the VIDIOC_QUERY_EXT_CTRL ioctl for querying extended controls */
1739 struct v4l2_query_ext_ctrl {
1740         __u32                id;
1741         __u32                type;
1742         char                 name[32];
1743         __s64                minimum;
1744         __s64                maximum;
1745         __u64                step;
1746         __s64                default_value;
1747         __u32                flags;
1748         __u32                elem_size;
1749         __u32                elems;
1750         __u32                nr_of_dims;
1751         __u32                dims[V4L2_CTRL_MAX_DIMS];
1752         __u32                reserved[32];
1753 };
1754 
1755 /*  Used in the VIDIOC_QUERYMENU ioctl for querying menu items */
1756 struct v4l2_querymenu {
1757         __u32           id;
1758         __u32           index;
1759         union {
1760                 __u8    name[32];       /* Whatever */
1761                 __s64   value;
1762         };
1763         __u32           reserved;
1764 } __attribute__ ((packed));
1765 
1766 /*  Control flags  */
1767 #define V4L2_CTRL_FLAG_DISABLED         0x0001
1768 #define V4L2_CTRL_FLAG_GRABBED          0x0002
1769 #define V4L2_CTRL_FLAG_READ_ONLY        0x0004
1770 #define V4L2_CTRL_FLAG_UPDATE           0x0008
1771 #define V4L2_CTRL_FLAG_INACTIVE         0x0010
1772 #define V4L2_CTRL_FLAG_SLIDER           0x0020
1773 #define V4L2_CTRL_FLAG_WRITE_ONLY       0x0040
1774 #define V4L2_CTRL_FLAG_VOLATILE         0x0080
1775 #define V4L2_CTRL_FLAG_HAS_PAYLOAD      0x0100
1776 #define V4L2_CTRL_FLAG_EXECUTE_ON_WRITE 0x0200
1777 #define V4L2_CTRL_FLAG_MODIFY_LAYOUT    0x0400
1778 
1779 /*  Query flags, to be ORed with the control ID */
1780 #define V4L2_CTRL_FLAG_NEXT_CTRL        0x80000000
1781 #define V4L2_CTRL_FLAG_NEXT_COMPOUND    0x40000000
1782 
1783 /*  User-class control IDs defined by V4L2 */
1784 #define V4L2_CID_MAX_CTRLS              1024
1785 /*  IDs reserved for driver specific controls */
1786 #define V4L2_CID_PRIVATE_BASE           0x08000000
1787 
1788 
1789 /*
1790  *      T U N I N G
1791  */
1792 struct v4l2_tuner {
1793         __u32                   index;
1794         __u8                    name[32];
1795         __u32                   type;   /* enum v4l2_tuner_type */
1796         __u32                   capability;
1797         __u32                   rangelow;
1798         __u32                   rangehigh;
1799         __u32                   rxsubchans;
1800         __u32                   audmode;
1801         __s32                   signal;
1802         __s32                   afc;
1803         __u32                   reserved[4];
1804 };
1805 
1806 struct v4l2_modulator {
1807         __u32                   index;
1808         __u8                    name[32];
1809         __u32                   capability;
1810         __u32                   rangelow;
1811         __u32                   rangehigh;
1812         __u32                   txsubchans;
1813         __u32                   type;   /* enum v4l2_tuner_type */
1814         __u32                   reserved[3];
1815 };
1816 
1817 /*  Flags for the 'capability' field */
1818 #define V4L2_TUNER_CAP_LOW              0x0001
1819 #define V4L2_TUNER_CAP_NORM             0x0002
1820 #define V4L2_TUNER_CAP_HWSEEK_BOUNDED   0x0004
1821 #define V4L2_TUNER_CAP_HWSEEK_WRAP      0x0008
1822 #define V4L2_TUNER_CAP_STEREO           0x0010
1823 #define V4L2_TUNER_CAP_LANG2            0x0020
1824 #define V4L2_TUNER_CAP_SAP              0x0020
1825 #define V4L2_TUNER_CAP_LANG1            0x0040
1826 #define V4L2_TUNER_CAP_RDS              0x0080
1827 #define V4L2_TUNER_CAP_RDS_BLOCK_IO     0x0100
1828 #define V4L2_TUNER_CAP_RDS_CONTROLS     0x0200
1829 #define V4L2_TUNER_CAP_FREQ_BANDS       0x0400
1830 #define V4L2_TUNER_CAP_HWSEEK_PROG_LIM  0x0800
1831 #define V4L2_TUNER_CAP_1HZ              0x1000
1832 
1833 /*  Flags for the 'rxsubchans' field */
1834 #define V4L2_TUNER_SUB_MONO             0x0001
1835 #define V4L2_TUNER_SUB_STEREO           0x0002
1836 #define V4L2_TUNER_SUB_LANG2            0x0004
1837 #define V4L2_TUNER_SUB_SAP              0x0004
1838 #define V4L2_TUNER_SUB_LANG1            0x0008
1839 #define V4L2_TUNER_SUB_RDS              0x0010
1840 
1841 /*  Values for the 'audmode' field */
1842 #define V4L2_TUNER_MODE_MONO            0x0000
1843 #define V4L2_TUNER_MODE_STEREO          0x0001
1844 #define V4L2_TUNER_MODE_LANG2           0x0002
1845 #define V4L2_TUNER_MODE_SAP             0x0002
1846 #define V4L2_TUNER_MODE_LANG1           0x0003
1847 #define V4L2_TUNER_MODE_LANG1_LANG2     0x0004
1848 
1849 struct v4l2_frequency {
1850         __u32   tuner;
1851         __u32   type;   /* enum v4l2_tuner_type */
1852         __u32   frequency;
1853         __u32   reserved[8];
1854 };
1855 
1856 #define V4L2_BAND_MODULATION_VSB        (1 << 1)
1857 #define V4L2_BAND_MODULATION_FM         (1 << 2)
1858 #define V4L2_BAND_MODULATION_AM         (1 << 3)
1859 
1860 struct v4l2_frequency_band {
1861         __u32   tuner;
1862         __u32   type;   /* enum v4l2_tuner_type */
1863         __u32   index;
1864         __u32   capability;
1865         __u32   rangelow;
1866         __u32   rangehigh;
1867         __u32   modulation;
1868         __u32   reserved[9];
1869 };
1870 
1871 struct v4l2_hw_freq_seek {
1872         __u32   tuner;
1873         __u32   type;   /* enum v4l2_tuner_type */
1874         __u32   seek_upward;
1875         __u32   wrap_around;
1876         __u32   spacing;
1877         __u32   rangelow;
1878         __u32   rangehigh;
1879         __u32   reserved[5];
1880 };
1881 
1882 /*
1883  *      R D S
1884  */
1885 
1886 struct v4l2_rds_data {
1887         __u8    lsb;
1888         __u8    msb;
1889         __u8    block;
1890 } __attribute__ ((packed));
1891 
1892 #define V4L2_RDS_BLOCK_MSK       0x7
1893 #define V4L2_RDS_BLOCK_A         0
1894 #define V4L2_RDS_BLOCK_B         1
1895 #define V4L2_RDS_BLOCK_C         2
1896 #define V4L2_RDS_BLOCK_D         3
1897 #define V4L2_RDS_BLOCK_C_ALT     4
1898 #define V4L2_RDS_BLOCK_INVALID   7
1899 
1900 #define V4L2_RDS_BLOCK_CORRECTED 0x40
1901 #define V4L2_RDS_BLOCK_ERROR     0x80
1902 
1903 /*
1904  *      A U D I O
1905  */
1906 struct v4l2_audio {
1907         __u32   index;
1908         __u8    name[32];
1909         __u32   capability;
1910         __u32   mode;
1911         __u32   reserved[2];
1912 };
1913 
1914 /*  Flags for the 'capability' field */
1915 #define V4L2_AUDCAP_STEREO              0x00001
1916 #define V4L2_AUDCAP_AVL                 0x00002
1917 
1918 /*  Flags for the 'mode' field */
1919 #define V4L2_AUDMODE_AVL                0x00001
1920 
1921 struct v4l2_audioout {
1922         __u32   index;
1923         __u8    name[32];
1924         __u32   capability;
1925         __u32   mode;
1926         __u32   reserved[2];
1927 };
1928 
1929 /*
1930  *      M P E G   S E R V I C E S
1931  */
1932 #if 1
1933 #define V4L2_ENC_IDX_FRAME_I    (0)
1934 #define V4L2_ENC_IDX_FRAME_P    (1)
1935 #define V4L2_ENC_IDX_FRAME_B    (2)
1936 #define V4L2_ENC_IDX_FRAME_MASK (0xf)
1937 
1938 struct v4l2_enc_idx_entry {
1939         __u64 offset;
1940         __u64 pts;
1941         __u32 length;
1942         __u32 flags;
1943         __u32 reserved[2];
1944 };
1945 
1946 #define V4L2_ENC_IDX_ENTRIES (64)
1947 struct v4l2_enc_idx {
1948         __u32 entries;
1949         __u32 entries_cap;
1950         __u32 reserved[4];
1951         struct v4l2_enc_idx_entry entry[V4L2_ENC_IDX_ENTRIES];
1952 };
1953 
1954 
1955 #define V4L2_ENC_CMD_START      (0)
1956 #define V4L2_ENC_CMD_STOP       (1)
1957 #define V4L2_ENC_CMD_PAUSE      (2)
1958 #define V4L2_ENC_CMD_RESUME     (3)
1959 
1960 /* Flags for V4L2_ENC_CMD_STOP */
1961 #define V4L2_ENC_CMD_STOP_AT_GOP_END    (1 << 0)
1962 
1963 struct v4l2_encoder_cmd {
1964         __u32 cmd;
1965         __u32 flags;
1966         union {
1967                 struct {
1968                         __u32 data[8];
1969                 } raw;
1970         };
1971 };
1972 
1973 /* Decoder commands */
1974 #define V4L2_DEC_CMD_START       (0)
1975 #define V4L2_DEC_CMD_STOP        (1)
1976 #define V4L2_DEC_CMD_PAUSE       (2)
1977 #define V4L2_DEC_CMD_RESUME      (3)
1978 
1979 /* Flags for V4L2_DEC_CMD_START */
1980 #define V4L2_DEC_CMD_START_MUTE_AUDIO   (1 << 0)
1981 
1982 /* Flags for V4L2_DEC_CMD_PAUSE */
1983 #define V4L2_DEC_CMD_PAUSE_TO_BLACK     (1 << 0)
1984 
1985 /* Flags for V4L2_DEC_CMD_STOP */
1986 #define V4L2_DEC_CMD_STOP_TO_BLACK      (1 << 0)
1987 #define V4L2_DEC_CMD_STOP_IMMEDIATELY   (1 << 1)
1988 
1989 /* Play format requirements (returned by the driver): */
1990 
1991 /* The decoder has no special format requirements */
1992 #define V4L2_DEC_START_FMT_NONE         (0)
1993 /* The decoder requires full GOPs */
1994 #define V4L2_DEC_START_FMT_GOP          (1)
1995 
1996 /* The structure must be zeroed before use by the application
1997    This ensures it can be extended safely in the future. */
1998 struct v4l2_decoder_cmd {
1999         __u32 cmd;
2000         __u32 flags;
2001         union {
2002                 struct {
2003                         __u64 pts;
2004                 } stop;
2005 
2006                 struct {
2007                         /* 0 or 1000 specifies normal speed,
2008                            1 specifies forward single stepping,
2009                            -1 specifies backward single stepping,
2010                            >1: playback at speed/1000 of the normal speed,
2011                            <-1: reverse playback at (-speed/1000) of the normal speed. */
2012                         __s32 speed;
2013                         __u32 format;
2014                 } start;
2015 
2016                 struct {
2017                         __u32 data[16];
2018                 } raw;
2019         };
2020 };
2021 #endif
2022 
2023 
2024 /*
2025  *      D A T A   S E R V I C E S   ( V B I )
2026  *
2027  *      Data services API by Michael Schimek
2028  */
2029 
2030 /* Raw VBI */
2031 struct v4l2_vbi_format {
2032         __u32   sampling_rate;          /* in 1 Hz */
2033         __u32   offset;
2034         __u32   samples_per_line;
2035         __u32   sample_format;          /* V4L2_PIX_FMT_* */
2036         __s32   start[2];
2037         __u32   count[2];
2038         __u32   flags;                  /* V4L2_VBI_* */
2039         __u32   reserved[2];            /* must be zero */
2040 };
2041 
2042 /*  VBI flags  */
2043 #define V4L2_VBI_UNSYNC         (1 << 0)
2044 #define V4L2_VBI_INTERLACED     (1 << 1)
2045 
2046 /* ITU-R start lines for each field */
2047 #define V4L2_VBI_ITU_525_F1_START (1)
2048 #define V4L2_VBI_ITU_525_F2_START (264)
2049 #define V4L2_VBI_ITU_625_F1_START (1)
2050 #define V4L2_VBI_ITU_625_F2_START (314)
2051 
2052 /* Sliced VBI
2053  *
2054  *    This implements is a proposal V4L2 API to allow SLICED VBI
2055  * required for some hardware encoders. It should change without
2056  * notice in the definitive implementation.
2057  */
2058 
2059 struct v4l2_sliced_vbi_format {
2060         __u16   service_set;
2061         /* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
2062            service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
2063                                  (equals frame lines 313-336 for 625 line video
2064                                   standards, 263-286 for 525 line standards) */
2065         __u16   service_lines[2][24];
2066         __u32   io_size;
2067         __u32   reserved[2];            /* must be zero */
2068 };
2069 
2070 /* Teletext World System Teletext
2071    (WST), defined on ITU-R BT.653-2 */
2072 #define V4L2_SLICED_TELETEXT_B          (0x0001)
2073 /* Video Program System, defined on ETS 300 231*/
2074 #define V4L2_SLICED_VPS                 (0x0400)
2075 /* Closed Caption, defined on EIA-608 */
2076 #define V4L2_SLICED_CAPTION_525         (0x1000)
2077 /* Wide Screen System, defined on ITU-R BT1119.1 */
2078 #define V4L2_SLICED_WSS_625             (0x4000)
2079 
2080 #define V4L2_SLICED_VBI_525             (V4L2_SLICED_CAPTION_525)
2081 #define V4L2_SLICED_VBI_625             (V4L2_SLICED_TELETEXT_B | V4L2_SLICED_VPS | V4L2_SLICED_WSS_625)
2082 
2083 struct v4l2_sliced_vbi_cap {
2084         __u16   service_set;
2085         /* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
2086            service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
2087                                  (equals frame lines 313-336 for 625 line video
2088                                   standards, 263-286 for 525 line standards) */
2089         __u16   service_lines[2][24];
2090         __u32   type;           /* enum v4l2_buf_type */
2091         __u32   reserved[3];    /* must be 0 */
2092 };
2093 
2094 struct v4l2_sliced_vbi_data {
2095         __u32   id;
2096         __u32   field;          /* 0: first field, 1: second field */
2097         __u32   line;           /* 1-23 */
2098         __u32   reserved;       /* must be 0 */
2099         __u8    data[48];
2100 };
2101 
2102 /*
2103  * Sliced VBI data inserted into MPEG Streams
2104  */
2105 
2106 /*
2107  * V4L2_MPEG_STREAM_VBI_FMT_IVTV:
2108  *
2109  * Structure of payload contained in an MPEG 2 Private Stream 1 PES Packet in an
2110  * MPEG-2 Program Pack that contains V4L2_MPEG_STREAM_VBI_FMT_IVTV Sliced VBI
2111  * data
2112  *
2113  * Note, the MPEG-2 Program Pack and Private Stream 1 PES packet header
2114  * definitions are not included here.  See the MPEG-2 specifications for details
2115  * on these headers.
2116  */
2117 
2118 /* Line type IDs */
2119 #define V4L2_MPEG_VBI_IVTV_TELETEXT_B     (1)
2120 #define V4L2_MPEG_VBI_IVTV_CAPTION_525    (4)
2121 #define V4L2_MPEG_VBI_IVTV_WSS_625        (5)
2122 #define V4L2_MPEG_VBI_IVTV_VPS            (7)
2123 
2124 struct v4l2_mpeg_vbi_itv0_line {
2125         __u8 id;        /* One of V4L2_MPEG_VBI_IVTV_* above */
2126         __u8 data[42];  /* Sliced VBI data for the line */
2127 } __attribute__ ((packed));
2128 
2129 struct v4l2_mpeg_vbi_itv0 {
2130         __le32 linemask[2]; /* Bitmasks of VBI service lines present */
2131         struct v4l2_mpeg_vbi_itv0_line line[35];
2132 } __attribute__ ((packed));
2133 
2134 struct v4l2_mpeg_vbi_ITV0 {
2135         struct v4l2_mpeg_vbi_itv0_line line[36];
2136 } __attribute__ ((packed));
2137 
2138 #define V4L2_MPEG_VBI_IVTV_MAGIC0       "itv0"
2139 #define V4L2_MPEG_VBI_IVTV_MAGIC1       "ITV0"
2140 
2141 struct v4l2_mpeg_vbi_fmt_ivtv {
2142         __u8 magic[4];
2143         union {
2144                 struct v4l2_mpeg_vbi_itv0 itv0;
2145                 struct v4l2_mpeg_vbi_ITV0 ITV0;
2146         };
2147 } __attribute__ ((packed));
2148 
2149 /*
2150  *      A G G R E G A T E   S T R U C T U R E S
2151  */
2152 
2153 /**
2154  * struct v4l2_plane_pix_format - additional, per-plane format definition
2155  * @sizeimage:          maximum size in bytes required for data, for which
2156  *                      this plane will be used
2157  * @bytesperline:       distance in bytes between the leftmost pixels in two
2158  *                      adjacent lines
2159  */
2160 struct v4l2_plane_pix_format {
2161         __u32           sizeimage;
2162         __u32           bytesperline;
2163         __u16           reserved[6];
2164 } __attribute__ ((packed));
2165 
2166 /**
2167  * struct v4l2_pix_format_mplane - multiplanar format definition
2168  * @width:              image width in pixels
2169  * @height:             image height in pixels
2170  * @pixelformat:        little endian four character code (fourcc)
2171  * @field:              enum v4l2_field; field order (for interlaced video)
2172  * @colorspace:         enum v4l2_colorspace; supplemental to pixelformat
2173  * @plane_fmt:          per-plane information
2174  * @num_planes:         number of planes for this format
2175  * @flags:              format flags (V4L2_PIX_FMT_FLAG_*)
2176  * @ycbcr_enc:          enum v4l2_ycbcr_encoding, Y'CbCr encoding
2177  * @quantization:       enum v4l2_quantization, colorspace quantization
2178  * @xfer_func:          enum v4l2_xfer_func, colorspace transfer function
2179  */
2180 struct v4l2_pix_format_mplane {
2181         __u32                           width;
2182         __u32                           height;
2183         __u32                           pixelformat;
2184         __u32                           field;
2185         __u32                           colorspace;
2186 
2187         struct v4l2_plane_pix_format    plane_fmt[VIDEO_MAX_PLANES];
2188         __u8                            num_planes;
2189         __u8                            flags;
2190          union {
2191                 __u8                            ycbcr_enc;
2192                 __u8                            hsv_enc;
2193         };
2194         __u8                            quantization;
2195         __u8                            xfer_func;
2196         __u8                            reserved[7];
2197 } __attribute__ ((packed));
2198 
2199 /**
2200  * struct v4l2_sdr_format - SDR format definition
2201  * @pixelformat:        little endian four character code (fourcc)
2202  * @buffersize:         maximum size in bytes required for data
2203  */
2204 struct v4l2_sdr_format {
2205         __u32                           pixelformat;
2206         __u32                           buffersize;
2207         __u8                            reserved[24];
2208 } __attribute__ ((packed));
2209 
2210 /**
2211  * struct v4l2_meta_format - metadata format definition
2212  * @dataformat:         little endian four character code (fourcc)
2213  * @buffersize:         maximum size in bytes required for data
2214  */
2215 struct v4l2_meta_format {
2216         __u32                           dataformat;
2217         __u32                           buffersize;
2218 } __attribute__ ((packed));
2219 
2220 /**
2221  * struct v4l2_format - stream data format
2222  * @type:       enum v4l2_buf_type; type of the data stream
2223  * @pix:        definition of an image format
2224  * @pix_mp:     definition of a multiplanar image format
2225  * @win:        definition of an overlaid image
2226  * @vbi:        raw VBI capture or output parameters
2227  * @sliced:     sliced VBI capture or output parameters
2228  * @raw_data:   placeholder for future extensions and custom formats
2229  */
2230 struct v4l2_format {
2231         __u32    type;
2232         union {
2233                 struct v4l2_pix_format          pix;     /* V4L2_BUF_TYPE_VIDEO_CAPTURE */
2234                 struct v4l2_pix_format_mplane   pix_mp;  /* V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE */
2235                 struct v4l2_window              win;     /* V4L2_BUF_TYPE_VIDEO_OVERLAY */
2236                 struct v4l2_vbi_format          vbi;     /* V4L2_BUF_TYPE_VBI_CAPTURE */
2237                 struct v4l2_sliced_vbi_format   sliced;  /* V4L2_BUF_TYPE_SLICED_VBI_CAPTURE */
2238                 struct v4l2_sdr_format          sdr;     /* V4L2_BUF_TYPE_SDR_CAPTURE */
2239                 struct v4l2_meta_format         meta;    /* V4L2_BUF_TYPE_META_CAPTURE */
2240                 __u8    raw_data[200];                   /* user-defined */
2241         } fmt;
2242 };
2243 
2244 /*      Stream type-dependent parameters
2245  */
2246 struct v4l2_streamparm {
2247         __u32    type;                  /* enum v4l2_buf_type */
2248         union {
2249                 struct v4l2_captureparm capture;
2250                 struct v4l2_outputparm  output;
2251                 __u8    raw_data[200];  /* user-defined */
2252         } parm;
2253 };
2254 
2255 /*
2256  *      E V E N T S
2257  */
2258 
2259 #define V4L2_EVENT_ALL                          0
2260 #define V4L2_EVENT_VSYNC                        1
2261 #define V4L2_EVENT_EOS                          2
2262 #define V4L2_EVENT_CTRL                         3
2263 #define V4L2_EVENT_FRAME_SYNC                   4
2264 #define V4L2_EVENT_SOURCE_CHANGE                5
2265 #define V4L2_EVENT_MOTION_DET                   6
2266 #define V4L2_EVENT_PRIVATE_START                0x08000000
2267 
2268 /* Payload for V4L2_EVENT_VSYNC */
2269 struct v4l2_event_vsync {
2270         /* Can be V4L2_FIELD_ANY, _NONE, _TOP or _BOTTOM */
2271         __u8 field;
2272 } __attribute__ ((packed));
2273 
2274 /* Payload for V4L2_EVENT_CTRL */
2275 #define V4L2_EVENT_CTRL_CH_VALUE                (1 << 0)
2276 #define V4L2_EVENT_CTRL_CH_FLAGS                (1 << 1)
2277 #define V4L2_EVENT_CTRL_CH_RANGE                (1 << 2)
2278 
2279 struct v4l2_event_ctrl {
2280         __u32 changes;
2281         __u32 type;
2282         union {
2283                 __s32 value;
2284                 __s64 value64;
2285         };
2286         __u32 flags;
2287         __s32 minimum;
2288         __s32 maximum;
2289         __s32 step;
2290         __s32 default_value;
2291 };
2292 
2293 struct v4l2_event_frame_sync {
2294         __u32 frame_sequence;
2295 };
2296 
2297 #define V4L2_EVENT_SRC_CH_RESOLUTION            (1 << 0)
2298 
2299 struct v4l2_event_src_change {
2300         __u32 changes;
2301 };
2302 
2303 #define V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ (1 << 0)
2304 
2305 /**
2306  * struct v4l2_event_motion_det - motion detection event
2307  * @flags:             if V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ is set, then the
2308  *                     frame_sequence field is valid.
2309  * @frame_sequence:    the frame sequence number associated with this event.
2310  * @region_mask:       which regions detected motion.
2311  */
2312 struct v4l2_event_motion_det {
2313         __u32 flags;
2314         __u32 frame_sequence;
2315         __u32 region_mask;
2316 };
2317 
2318 struct v4l2_event {
2319         __u32                           type;
2320         union {
2321                 struct v4l2_event_vsync         vsync;
2322                 struct v4l2_event_ctrl          ctrl;
2323                 struct v4l2_event_frame_sync    frame_sync;
2324                 struct v4l2_event_src_change    src_change;
2325                 struct v4l2_event_motion_det    motion_det;
2326                 __u8                            data[64];
2327         } u;
2328         __u32                           pending;
2329         __u32                           sequence;
2330         struct timespec                 timestamp;
2331         __u32                           id;
2332         __u32                           reserved[8];
2333 };
2334 
2335 #define V4L2_EVENT_SUB_FL_SEND_INITIAL          (1 << 0)
2336 #define V4L2_EVENT_SUB_FL_ALLOW_FEEDBACK        (1 << 1)
2337 
2338 struct v4l2_event_subscription {
2339         __u32                           type;
2340         __u32                           id;
2341         __u32                           flags;
2342         __u32                           reserved[5];
2343 };
2344 
2345 /*
2346  *      A D V A N C E D   D E B U G G I N G
2347  *
2348  *      NOTE: EXPERIMENTAL API, NEVER RELY ON THIS IN APPLICATIONS!
2349  *      FOR DEBUGGING, TESTING AND INTERNAL USE ONLY!
2350  */
2351 
2352 /* VIDIOC_DBG_G_REGISTER and VIDIOC_DBG_S_REGISTER */
2353 
2354 #define V4L2_CHIP_MATCH_BRIDGE      0  /* Match against chip ID on the bridge (0 for the bridge) */
2355 #define V4L2_CHIP_MATCH_SUBDEV      4  /* Match against subdev index */
2356 
2357 /* The following four defines are no longer in use */
2358 #define V4L2_CHIP_MATCH_HOST V4L2_CHIP_MATCH_BRIDGE
2359 #define V4L2_CHIP_MATCH_I2C_DRIVER  1  /* Match against I2C driver name */
2360 #define V4L2_CHIP_MATCH_I2C_ADDR    2  /* Match against I2C 7-bit address */
2361 #define V4L2_CHIP_MATCH_AC97        3  /* Match against ancillary AC97 chip */
2362 
2363 struct v4l2_dbg_match {
2364         __u32 type; /* Match type */
2365         union {     /* Match this chip, meaning determined by type */
2366                 __u32 addr;
2367                 char name[32];
2368         };
2369 } __attribute__ ((packed));
2370 
2371 struct v4l2_dbg_register {
2372         struct v4l2_dbg_match match;
2373         __u32 size;     /* register size in bytes */
2374         __u64 reg;
2375         __u64 val;
2376 } __attribute__ ((packed));
2377 
2378 #define V4L2_CHIP_FL_READABLE (1 << 0)
2379 #define V4L2_CHIP_FL_WRITABLE (1 << 1)
2380 
2381 /* VIDIOC_DBG_G_CHIP_INFO */
2382 struct v4l2_dbg_chip_info {
2383         struct v4l2_dbg_match match;
2384         char name[32];
2385         __u32 flags;
2386         __u32 reserved[32];
2387 } __attribute__ ((packed));
2388 
2389 /**
2390  * struct v4l2_create_buffers - VIDIOC_CREATE_BUFS argument
2391  * @index:      on return, index of the first created buffer
2392  * @count:      entry: number of requested buffers,
2393  *              return: number of created buffers
2394  * @memory:     enum v4l2_memory; buffer memory type
2395  * @format:     frame format, for which buffers are requested
2396  * @capabilities: capabilities of this buffer type.
2397  * @reserved:   future extensions
2398  */
2399 struct v4l2_create_buffers {
2400         __u32                   index;
2401         __u32                   count;
2402         __u32                   memory;
2403         struct v4l2_format      format;
2404         __u32                   capabilities;
2405         __u32                   reserved[7];
2406 };
2407 
2408 /*
2409  *      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
2410  *
2411  */
2412 #define VIDIOC_QUERYCAP          _IOR('V',  0, struct v4l2_capability)
2413 #define VIDIOC_ENUM_FMT         _IOWR('V',  2, struct v4l2_fmtdesc)
2414 #define VIDIOC_G_FMT            _IOWR('V',  4, struct v4l2_format)
2415 #define VIDIOC_S_FMT            _IOWR('V',  5, struct v4l2_format)
2416 #define VIDIOC_REQBUFS          _IOWR('V',  8, struct v4l2_requestbuffers)
2417 #define VIDIOC_QUERYBUF         _IOWR('V',  9, struct v4l2_buffer)
2418 #define VIDIOC_G_FBUF            _IOR('V', 10, struct v4l2_framebuffer)
2419 #define VIDIOC_S_FBUF            _IOW('V', 11, struct v4l2_framebuffer)
2420 #define VIDIOC_OVERLAY           _IOW('V', 14, int)
2421 #define VIDIOC_QBUF             _IOWR('V', 15, struct v4l2_buffer)
2422 #define VIDIOC_EXPBUF           _IOWR('V', 16, struct v4l2_exportbuffer)
2423 #define VIDIOC_DQBUF            _IOWR('V', 17, struct v4l2_buffer)
2424 #define VIDIOC_STREAMON          _IOW('V', 18, int)
2425 #define VIDIOC_STREAMOFF         _IOW('V', 19, int)
2426 #define VIDIOC_G_PARM           _IOWR('V', 21, struct v4l2_streamparm)
2427 #define VIDIOC_S_PARM           _IOWR('V', 22, struct v4l2_streamparm)
2428 #define VIDIOC_G_STD             _IOR('V', 23, v4l2_std_id)
2429 #define VIDIOC_S_STD             _IOW('V', 24, v4l2_std_id)
2430 #define VIDIOC_ENUMSTD          _IOWR('V', 25, struct v4l2_standard)
2431 #define VIDIOC_ENUMINPUT        _IOWR('V', 26, struct v4l2_input)
2432 #define VIDIOC_G_CTRL           _IOWR('V', 27, struct v4l2_control)
2433 #define VIDIOC_S_CTRL           _IOWR('V', 28, struct v4l2_control)
2434 #define VIDIOC_G_TUNER          _IOWR('V', 29, struct v4l2_tuner)
2435 #define VIDIOC_S_TUNER           _IOW('V', 30, struct v4l2_tuner)
2436 #define VIDIOC_G_AUDIO           _IOR('V', 33, struct v4l2_audio)
2437 #define VIDIOC_S_AUDIO           _IOW('V', 34, struct v4l2_audio)
2438 #define VIDIOC_QUERYCTRL        _IOWR('V', 36, struct v4l2_queryctrl)
2439 #define VIDIOC_QUERYMENU        _IOWR('V', 37, struct v4l2_querymenu)
2440 #define VIDIOC_G_INPUT           _IOR('V', 38, int)
2441 #define VIDIOC_S_INPUT          _IOWR('V', 39, int)
2442 #define VIDIOC_G_EDID           _IOWR('V', 40, struct v4l2_edid)
2443 #define VIDIOC_S_EDID           _IOWR('V', 41, struct v4l2_edid)
2444 #define VIDIOC_G_OUTPUT          _IOR('V', 46, int)
2445 #define VIDIOC_S_OUTPUT         _IOWR('V', 47, int)
2446 #define VIDIOC_ENUMOUTPUT       _IOWR('V', 48, struct v4l2_output)
2447 #define VIDIOC_G_AUDOUT          _IOR('V', 49, struct v4l2_audioout)
2448 #define VIDIOC_S_AUDOUT          _IOW('V', 50, struct v4l2_audioout)
2449 #define VIDIOC_G_MODULATOR      _IOWR('V', 54, struct v4l2_modulator)
2450 #define VIDIOC_S_MODULATOR       _IOW('V', 55, struct v4l2_modulator)
2451 #define VIDIOC_G_FREQUENCY      _IOWR('V', 56, struct v4l2_frequency)
2452 #define VIDIOC_S_FREQUENCY       _IOW('V', 57, struct v4l2_frequency)
2453 #define VIDIOC_CROPCAP          _IOWR('V', 58, struct v4l2_cropcap)
2454 #define VIDIOC_G_CROP           _IOWR('V', 59, struct v4l2_crop)
2455 #define VIDIOC_S_CROP            _IOW('V', 60, struct v4l2_crop)
2456 #define VIDIOC_G_JPEGCOMP        _IOR('V', 61, struct v4l2_jpegcompression)
2457 #define VIDIOC_S_JPEGCOMP        _IOW('V', 62, struct v4l2_jpegcompression)
2458 #define VIDIOC_QUERYSTD          _IOR('V', 63, v4l2_std_id)
2459 #define VIDIOC_TRY_FMT          _IOWR('V', 64, struct v4l2_format)
2460 #define VIDIOC_ENUMAUDIO        _IOWR('V', 65, struct v4l2_audio)
2461 #define VIDIOC_ENUMAUDOUT       _IOWR('V', 66, struct v4l2_audioout)
2462 #define VIDIOC_G_PRIORITY        _IOR('V', 67, __u32) /* enum v4l2_priority */
2463 #define VIDIOC_S_PRIORITY        _IOW('V', 68, __u32) /* enum v4l2_priority */
2464 #define VIDIOC_G_SLICED_VBI_CAP _IOWR('V', 69, struct v4l2_sliced_vbi_cap)
2465 #define VIDIOC_LOG_STATUS         _IO('V', 70)
2466 #define VIDIOC_G_EXT_CTRLS      _IOWR('V', 71, struct v4l2_ext_controls)
2467 #define VIDIOC_S_EXT_CTRLS      _IOWR('V', 72, struct v4l2_ext_controls)
2468 #define VIDIOC_TRY_EXT_CTRLS    _IOWR('V', 73, struct v4l2_ext_controls)
2469 #define VIDIOC_ENUM_FRAMESIZES  _IOWR('V', 74, struct v4l2_frmsizeenum)
2470 #define VIDIOC_ENUM_FRAMEINTERVALS _IOWR('V', 75, struct v4l2_frmivalenum)
2471 #define VIDIOC_G_ENC_INDEX       _IOR('V', 76, struct v4l2_enc_idx)
2472 #define VIDIOC_ENCODER_CMD      _IOWR('V', 77, struct v4l2_encoder_cmd)
2473 #define VIDIOC_TRY_ENCODER_CMD  _IOWR('V', 78, struct v4l2_encoder_cmd)
2474 
2475 /*
2476  * Experimental, meant for debugging, testing and internal use.
2477  * Only implemented if CONFIG_VIDEO_ADV_DEBUG is defined.
2478  * You must be root to use these ioctls. Never use these in applications!
2479  */
2480 #define VIDIOC_DBG_S_REGISTER    _IOW('V', 79, struct v4l2_dbg_register)
2481 #define VIDIOC_DBG_G_REGISTER   _IOWR('V', 80, struct v4l2_dbg_register)
2482 
2483 #define VIDIOC_S_HW_FREQ_SEEK    _IOW('V', 82, struct v4l2_hw_freq_seek)
2484 #define VIDIOC_S_DV_TIMINGS     _IOWR('V', 87, struct v4l2_dv_timings)
2485 #define VIDIOC_G_DV_TIMINGS     _IOWR('V', 88, struct v4l2_dv_timings)
2486 #define VIDIOC_DQEVENT           _IOR('V', 89, struct v4l2_event)
2487 #define VIDIOC_SUBSCRIBE_EVENT   _IOW('V', 90, struct v4l2_event_subscription)
2488 #define VIDIOC_UNSUBSCRIBE_EVENT _IOW('V', 91, struct v4l2_event_subscription)
2489 #define VIDIOC_CREATE_BUFS      _IOWR('V', 92, struct v4l2_create_buffers)
2490 #define VIDIOC_PREPARE_BUF      _IOWR('V', 93, struct v4l2_buffer)
2491 #define VIDIOC_G_SELECTION      _IOWR('V', 94, struct v4l2_selection)
2492 #define VIDIOC_S_SELECTION      _IOWR('V', 95, struct v4l2_selection)
2493 #define VIDIOC_DECODER_CMD      _IOWR('V', 96, struct v4l2_decoder_cmd)
2494 #define VIDIOC_TRY_DECODER_CMD  _IOWR('V', 97, struct v4l2_decoder_cmd)
2495 #define VIDIOC_ENUM_DV_TIMINGS  _IOWR('V', 98, struct v4l2_enum_dv_timings)
2496 #define VIDIOC_QUERY_DV_TIMINGS  _IOR('V', 99, struct v4l2_dv_timings)
2497 #define VIDIOC_DV_TIMINGS_CAP   _IOWR('V', 100, struct v4l2_dv_timings_cap)
2498 #define VIDIOC_ENUM_FREQ_BANDS  _IOWR('V', 101, struct v4l2_frequency_band)
2499 
2500 /*
2501  * Experimental, meant for debugging, testing and internal use.
2502  * Never use this in applications!
2503  */
2504 #define VIDIOC_DBG_G_CHIP_INFO  _IOWR('V', 102, struct v4l2_dbg_chip_info)
2505 
2506 #define VIDIOC_QUERY_EXT_CTRL   _IOWR('V', 103, struct v4l2_query_ext_ctrl)
2507 
2508 /* Reminder: when adding new ioctls please add support for them to
2509    drivers/media/v4l2-core/v4l2-compat-ioctl32.c as well! */
2510 
2511 #define BASE_VIDIOC_PRIVATE     192             /* 192-255 are private */
2512 
2513 #endif /* _UAPI__LINUX_VIDEODEV2_H */
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root/include/uapi/linux/videodev2.h

INCLUDED FROM

DEFINITIONS
