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