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TOMOYO Linux Cross Reference
Linux/include/uapi/linux/videodev2.h

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

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