1 /* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) */
2 /*
3  *  Video for Linux Two header file
4  *
5  *  Copyright (C) 1999-2012 the contributors
6  *
7  *  This program is free software; you can redistribute it and/or modify
8  *  it under the terms of the GNU General Public License as published by
9  *  the Free Software Foundation; either version 2 of the License, or
10  *  (at your option) any later version.
11  *
12  *  This program is distributed in the hope that it will be useful,
13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  *  GNU General Public License for more details.
16  *
17  *  Alternatively you can redistribute this file under the terms of the
18  *  BSD license as stated below:
19  *
20  *  Redistribution and use in source and binary forms, with or without
21  *  modification, are permitted provided that the following conditions
22  *  are met:
23  *  1. Redistributions of source code must retain the above copyright
24  *     notice, this list of conditions and the following disclaimer.
25  *  2. Redistributions in binary form must reproduce the above copyright
26  *     notice, this list of conditions and the following disclaimer in
27  *     the documentation and/or other materials provided with the
28  *     distribution.
29  *  3. The names of its contributors may not be used to endorse or promote
30  *     products derived from this software without specific prior written
31  *     permission.
32  *
33  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
34  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
35  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
36  *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
37  *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
38  *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
39  *  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
40  *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
41  *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
42  *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
43  *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
44  *
45  *	Header file for v4l or V4L2 drivers and applications
46  * with public API.
47  * All kernel-specific stuff were moved to media/v4l2-dev.h, so
48  * no #if __KERNEL tests are allowed here
49  *
50  *	See https://linuxtv.org for more info
51  *
52  *	Author: Bill Dirks <bill@thedirks.org>
53  *		Justin Schoeman
54  *              Hans Verkuil <hverkuil@xs4all.nl>
55  *		et al.
56  */
57 #ifndef _UAPI__LINUX_VIDEODEV2_H
58 #define _UAPI__LINUX_VIDEODEV2_H
59 
60 #ifndef __KERNEL__
61 #include <sys/time.h>
62 #endif
63 #include <linux/compiler.h>
64 #include <linux/ioctl.h>
65 #include <linux/types.h>
66 #include <linux/v4l2-common.h>
67 #include <linux/v4l2-controls.h>
68 
69 /*
70  * Common stuff for both V4L1 and V4L2
71  * Moved from videodev.h
72  */
73 #define VIDEO_MAX_FRAME               32
74 #define VIDEO_MAX_PLANES               8
75 
76 /*
77  *	M I S C E L L A N E O U S
78  */
79 
80 /*  Four-character-code (FOURCC) */
81 #define v4l2_fourcc(a, b, c, d)\
82 	((__u32)(a) | ((__u32)(b) << 8) | ((__u32)(c) << 16) | ((__u32)(d) << 24))
83 #define v4l2_fourcc_be(a, b, c, d)	(v4l2_fourcc(a, b, c, d) | (1U << 31))
84 
85 /*
86  *	E N U M S
87  */
88 enum v4l2_field {
89 	V4L2_FIELD_ANY           = 0, /* driver can choose from none,
90 					 top, bottom, interlaced
91 					 depending on whatever it thinks
92 					 is approximate ... */
93 	V4L2_FIELD_NONE          = 1, /* this device has no fields ... */
94 	V4L2_FIELD_TOP           = 2, /* top field only */
95 	V4L2_FIELD_BOTTOM        = 3, /* bottom field only */
96 	V4L2_FIELD_INTERLACED    = 4, /* both fields interlaced */
97 	V4L2_FIELD_SEQ_TB        = 5, /* both fields sequential into one
98 					 buffer, top-bottom order */
99 	V4L2_FIELD_SEQ_BT        = 6, /* same as above + bottom-top order */
100 	V4L2_FIELD_ALTERNATE     = 7, /* both fields alternating into
101 					 separate buffers */
102 	V4L2_FIELD_INTERLACED_TB = 8, /* both fields interlaced, top field
103 					 first and the top field is
104 					 transmitted first */
105 	V4L2_FIELD_INTERLACED_BT = 9, /* both fields interlaced, top field
106 					 first and the bottom field is
107 					 transmitted first */
108 };
109 #define V4L2_FIELD_HAS_TOP(field)	\
110 	((field) == V4L2_FIELD_TOP	||\
111 	 (field) == V4L2_FIELD_INTERLACED ||\
112 	 (field) == V4L2_FIELD_INTERLACED_TB ||\
113 	 (field) == V4L2_FIELD_INTERLACED_BT ||\
114 	 (field) == V4L2_FIELD_SEQ_TB	||\
115 	 (field) == V4L2_FIELD_SEQ_BT)
116 #define V4L2_FIELD_HAS_BOTTOM(field)	\
117 	((field) == V4L2_FIELD_BOTTOM	||\
118 	 (field) == V4L2_FIELD_INTERLACED ||\
119 	 (field) == V4L2_FIELD_INTERLACED_TB ||\
120 	 (field) == V4L2_FIELD_INTERLACED_BT ||\
121 	 (field) == V4L2_FIELD_SEQ_TB	||\
122 	 (field) == V4L2_FIELD_SEQ_BT)
123 #define V4L2_FIELD_HAS_BOTH(field)	\
124 	((field) == V4L2_FIELD_INTERLACED ||\
125 	 (field) == V4L2_FIELD_INTERLACED_TB ||\
126 	 (field) == V4L2_FIELD_INTERLACED_BT ||\
127 	 (field) == V4L2_FIELD_SEQ_TB ||\
128 	 (field) == V4L2_FIELD_SEQ_BT)
129 #define V4L2_FIELD_HAS_T_OR_B(field)	\
130 	((field) == V4L2_FIELD_BOTTOM ||\
131 	 (field) == V4L2_FIELD_TOP ||\
132 	 (field) == V4L2_FIELD_ALTERNATE)
133 #define V4L2_FIELD_IS_INTERLACED(field) \
134 	((field) == V4L2_FIELD_INTERLACED ||\
135 	 (field) == V4L2_FIELD_INTERLACED_TB ||\
136 	 (field) == V4L2_FIELD_INTERLACED_BT)
137 #define V4L2_FIELD_IS_SEQUENTIAL(field) \
138 	((field) == V4L2_FIELD_SEQ_TB ||\
139 	 (field) == V4L2_FIELD_SEQ_BT)
140 
141 enum v4l2_buf_type {
142 	V4L2_BUF_TYPE_VIDEO_CAPTURE        = 1,
143 	V4L2_BUF_TYPE_VIDEO_OUTPUT         = 2,
144 	V4L2_BUF_TYPE_VIDEO_OVERLAY        = 3,
145 	V4L2_BUF_TYPE_VBI_CAPTURE          = 4,
146 	V4L2_BUF_TYPE_VBI_OUTPUT           = 5,
147 	V4L2_BUF_TYPE_SLICED_VBI_CAPTURE   = 6,
148 	V4L2_BUF_TYPE_SLICED_VBI_OUTPUT    = 7,
149 	V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY = 8,
150 	V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE = 9,
151 	V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE  = 10,
152 	V4L2_BUF_TYPE_SDR_CAPTURE          = 11,
153 	V4L2_BUF_TYPE_SDR_OUTPUT           = 12,
154 	V4L2_BUF_TYPE_META_CAPTURE         = 13,
155 	V4L2_BUF_TYPE_META_OUTPUT	   = 14,
156 	/* Deprecated, do not use */
157 	V4L2_BUF_TYPE_PRIVATE              = 0x80,
158 };
159 
160 #define V4L2_TYPE_IS_MULTIPLANAR(type)			\
161 	((type) == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE	\
162 	 || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
163 
164 #define V4L2_TYPE_IS_OUTPUT(type)				\
165 	((type) == V4L2_BUF_TYPE_VIDEO_OUTPUT			\
166 	 || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE		\
167 	 || (type) == V4L2_BUF_TYPE_VIDEO_OVERLAY		\
168 	 || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY	\
169 	 || (type) == V4L2_BUF_TYPE_VBI_OUTPUT			\
170 	 || (type) == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT		\
171 	 || (type) == V4L2_BUF_TYPE_SDR_OUTPUT			\
172 	 || (type) == V4L2_BUF_TYPE_META_OUTPUT)
173 
174 #define V4L2_TYPE_IS_CAPTURE(type) (!V4L2_TYPE_IS_OUTPUT(type))
175 
176 enum v4l2_tuner_type {
177 	V4L2_TUNER_RADIO	     = 1,
178 	V4L2_TUNER_ANALOG_TV	     = 2,
179 	V4L2_TUNER_DIGITAL_TV	     = 3,
180 	V4L2_TUNER_SDR               = 4,
181 	V4L2_TUNER_RF                = 5,
182 };
183 
184 /* Deprecated, do not use */
185 #define V4L2_TUNER_ADC  V4L2_TUNER_SDR
186 
187 enum v4l2_memory {
188 	V4L2_MEMORY_MMAP             = 1,
189 	V4L2_MEMORY_USERPTR          = 2,
190 	V4L2_MEMORY_OVERLAY          = 3,
191 	V4L2_MEMORY_DMABUF           = 4,
192 };
193 
194 /* see also http://vektor.theorem.ca/graphics/ycbcr/ */
195 enum v4l2_colorspace {
196 	/*
197 	 * Default colorspace, i.e. let the driver figure it out.
198 	 * Can only be used with video capture.
199 	 */
200 	V4L2_COLORSPACE_DEFAULT       = 0,
201 
202 	/* SMPTE 170M: used for broadcast NTSC/PAL SDTV */
203 	V4L2_COLORSPACE_SMPTE170M     = 1,
204 
205 	/* Obsolete pre-1998 SMPTE 240M HDTV standard, superseded by Rec 709 */
206 	V4L2_COLORSPACE_SMPTE240M     = 2,
207 
208 	/* Rec.709: used for HDTV */
209 	V4L2_COLORSPACE_REC709        = 3,
210 
211 	/*
212 	 * Deprecated, do not use. No driver will ever return this. This was
213 	 * based on a misunderstanding of the bt878 datasheet.
214 	 */
215 	V4L2_COLORSPACE_BT878         = 4,
216 
217 	/*
218 	 * NTSC 1953 colorspace. This only makes sense when dealing with
219 	 * really, really old NTSC recordings. Superseded by SMPTE 170M.
220 	 */
221 	V4L2_COLORSPACE_470_SYSTEM_M  = 5,
222 
223 	/*
224 	 * EBU Tech 3213 PAL/SECAM colorspace.
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 #ifdef __KERNEL__
250 	/*
251 	 * Largest supported colorspace value, assigned by the compiler, used
252 	 * by the framework to check for invalid values.
253 	 */
254 	V4L2_COLORSPACE_LAST,
255 #endif
256 };
257 
258 /*
259  * Determine how COLORSPACE_DEFAULT should map to a proper colorspace.
260  * This depends on whether this is a SDTV image (use SMPTE 170M), an
261  * HDTV image (use Rec. 709), or something else (use sRGB).
262  */
263 #define V4L2_MAP_COLORSPACE_DEFAULT(is_sdtv, is_hdtv) \
264 	((is_sdtv) ? V4L2_COLORSPACE_SMPTE170M : \
265 	 ((is_hdtv) ? V4L2_COLORSPACE_REC709 : V4L2_COLORSPACE_SRGB))
266 
267 enum v4l2_xfer_func {
268 	/*
269 	 * Mapping of V4L2_XFER_FUNC_DEFAULT to actual transfer functions
270 	 * for the various colorspaces:
271 	 *
272 	 * V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M,
273 	 * V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_REC709 and
274 	 * V4L2_COLORSPACE_BT2020: V4L2_XFER_FUNC_709
275 	 *
276 	 * V4L2_COLORSPACE_SRGB, V4L2_COLORSPACE_JPEG: V4L2_XFER_FUNC_SRGB
277 	 *
278 	 * V4L2_COLORSPACE_OPRGB: V4L2_XFER_FUNC_OPRGB
279 	 *
280 	 * V4L2_COLORSPACE_SMPTE240M: V4L2_XFER_FUNC_SMPTE240M
281 	 *
282 	 * V4L2_COLORSPACE_RAW: V4L2_XFER_FUNC_NONE
283 	 *
284 	 * V4L2_COLORSPACE_DCI_P3: V4L2_XFER_FUNC_DCI_P3
285 	 */
286 	V4L2_XFER_FUNC_DEFAULT     = 0,
287 	V4L2_XFER_FUNC_709         = 1,
288 	V4L2_XFER_FUNC_SRGB        = 2,
289 	V4L2_XFER_FUNC_OPRGB       = 3,
290 	V4L2_XFER_FUNC_SMPTE240M   = 4,
291 	V4L2_XFER_FUNC_NONE        = 5,
292 	V4L2_XFER_FUNC_DCI_P3      = 6,
293 	V4L2_XFER_FUNC_SMPTE2084   = 7,
294 #ifdef __KERNEL__
295 	/*
296 	 * Largest supported transfer function value, assigned by the compiler,
297 	 * used by the framework to check for invalid values.
298 	 */
299 	V4L2_XFER_FUNC_LAST,
300 #endif
301 };
302 
303 /*
304  * Determine how XFER_FUNC_DEFAULT should map to a proper transfer function.
305  * This depends on the colorspace.
306  */
307 #define V4L2_MAP_XFER_FUNC_DEFAULT(colsp) \
308 	((colsp) == V4L2_COLORSPACE_OPRGB ? V4L2_XFER_FUNC_OPRGB : \
309 	 ((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_XFER_FUNC_SMPTE240M : \
310 	  ((colsp) == V4L2_COLORSPACE_DCI_P3 ? V4L2_XFER_FUNC_DCI_P3 : \
311 	   ((colsp) == V4L2_COLORSPACE_RAW ? V4L2_XFER_FUNC_NONE : \
312 	    ((colsp) == V4L2_COLORSPACE_SRGB || (colsp) == V4L2_COLORSPACE_JPEG ? \
313 	     V4L2_XFER_FUNC_SRGB : V4L2_XFER_FUNC_709)))))
314 
315 enum v4l2_ycbcr_encoding {
316 	/*
317 	 * Mapping of V4L2_YCBCR_ENC_DEFAULT to actual encodings for the
318 	 * various colorspaces:
319 	 *
320 	 * V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M,
321 	 * V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_SRGB,
322 	 * V4L2_COLORSPACE_OPRGB and V4L2_COLORSPACE_JPEG: V4L2_YCBCR_ENC_601
323 	 *
324 	 * V4L2_COLORSPACE_REC709 and V4L2_COLORSPACE_DCI_P3: V4L2_YCBCR_ENC_709
325 	 *
326 	 * V4L2_COLORSPACE_BT2020: V4L2_YCBCR_ENC_BT2020
327 	 *
328 	 * V4L2_COLORSPACE_SMPTE240M: V4L2_YCBCR_ENC_SMPTE240M
329 	 */
330 	V4L2_YCBCR_ENC_DEFAULT        = 0,
331 
332 	/* ITU-R 601 -- SDTV */
333 	V4L2_YCBCR_ENC_601            = 1,
334 
335 	/* Rec. 709 -- HDTV */
336 	V4L2_YCBCR_ENC_709            = 2,
337 
338 	/* ITU-R 601/EN 61966-2-4 Extended Gamut -- SDTV */
339 	V4L2_YCBCR_ENC_XV601          = 3,
340 
341 	/* Rec. 709/EN 61966-2-4 Extended Gamut -- HDTV */
342 	V4L2_YCBCR_ENC_XV709          = 4,
343 
344 #ifndef __KERNEL__
345 	/*
346 	 * sYCC (Y'CbCr encoding of sRGB), identical to ENC_601. It was added
347 	 * originally due to a misunderstanding of the sYCC standard. It should
348 	 * not be used, instead use V4L2_YCBCR_ENC_601.
349 	 */
350 	V4L2_YCBCR_ENC_SYCC           = 5,
351 #endif
352 
353 	/* BT.2020 Non-constant Luminance Y'CbCr */
354 	V4L2_YCBCR_ENC_BT2020         = 6,
355 
356 	/* BT.2020 Constant Luminance Y'CbcCrc */
357 	V4L2_YCBCR_ENC_BT2020_CONST_LUM = 7,
358 
359 	/* SMPTE 240M -- Obsolete HDTV */
360 	V4L2_YCBCR_ENC_SMPTE240M      = 8,
361 #ifdef __KERNEL__
362 	/*
363 	 * Largest supported encoding value, assigned by the compiler, used by
364 	 * the framework to check for invalid values.
365 	 */
366 	V4L2_YCBCR_ENC_LAST,
367 #endif
368 };
369 
370 /*
371  * enum v4l2_hsv_encoding values should not collide with the ones from
372  * enum v4l2_ycbcr_encoding.
373  */
374 enum v4l2_hsv_encoding {
375 
376 	/* Hue mapped to 0 - 179 */
377 	V4L2_HSV_ENC_180		= 128,
378 
379 	/* Hue mapped to 0-255 */
380 	V4L2_HSV_ENC_256		= 129,
381 };
382 
383 /*
384  * Determine how YCBCR_ENC_DEFAULT should map to a proper Y'CbCr encoding.
385  * This depends on the colorspace.
386  */
387 #define V4L2_MAP_YCBCR_ENC_DEFAULT(colsp) \
388 	(((colsp) == V4L2_COLORSPACE_REC709 || \
389 	  (colsp) == V4L2_COLORSPACE_DCI_P3) ? V4L2_YCBCR_ENC_709 : \
390 	 ((colsp) == V4L2_COLORSPACE_BT2020 ? V4L2_YCBCR_ENC_BT2020 : \
391 	  ((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_YCBCR_ENC_SMPTE240M : \
392 	   V4L2_YCBCR_ENC_601)))
393 
394 enum v4l2_quantization {
395 	/*
396 	 * The default for R'G'B' quantization is always full range.
397 	 * For Y'CbCr the quantization is always limited range, except
398 	 * for COLORSPACE_JPEG: this is full range.
399 	 */
400 	V4L2_QUANTIZATION_DEFAULT     = 0,
401 	V4L2_QUANTIZATION_FULL_RANGE  = 1,
402 	V4L2_QUANTIZATION_LIM_RANGE   = 2,
403 };
404 
405 /*
406  * Determine how QUANTIZATION_DEFAULT should map to a proper quantization.
407  * This depends on whether the image is RGB or not, the colorspace.
408  * The Y'CbCr encoding is not used anymore, but is still there for backwards
409  * compatibility.
410  */
411 #define V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb_or_hsv, colsp, ycbcr_enc) \
412 	(((is_rgb_or_hsv) || (colsp) == V4L2_COLORSPACE_JPEG) ? \
413 	 V4L2_QUANTIZATION_FULL_RANGE : V4L2_QUANTIZATION_LIM_RANGE)
414 
415 /*
416  * Deprecated names for opRGB colorspace (IEC 61966-2-5)
417  *
418  * WARNING: Please don't use these deprecated defines in your code, as
419  * there is a chance we have to remove them in the future.
420  */
421 #ifndef __KERNEL__
422 #define V4L2_COLORSPACE_ADOBERGB V4L2_COLORSPACE_OPRGB
423 #define V4L2_XFER_FUNC_ADOBERGB  V4L2_XFER_FUNC_OPRGB
424 #endif
425 
426 enum v4l2_priority {
427 	V4L2_PRIORITY_UNSET       = 0,  /* not initialized */
428 	V4L2_PRIORITY_BACKGROUND  = 1,
429 	V4L2_PRIORITY_INTERACTIVE = 2,
430 	V4L2_PRIORITY_RECORD      = 3,
431 	V4L2_PRIORITY_DEFAULT     = V4L2_PRIORITY_INTERACTIVE,
432 };
433 
434 struct v4l2_rect {
435 	__s32   left;
436 	__s32   top;
437 	__u32   width;
438 	__u32   height;
439 };
440 
441 struct v4l2_fract {
442 	__u32   numerator;
443 	__u32   denominator;
444 };
445 
446 struct v4l2_area {
447 	__u32   width;
448 	__u32   height;
449 };
450 
451 /**
452   * struct v4l2_capability - Describes V4L2 device caps returned by VIDIOC_QUERYCAP
453   *
454   * @driver:	   name of the driver module (e.g. "bttv")
455   * @card:	   name of the card (e.g. "Hauppauge WinTV")
456   * @bus_info:	   name of the bus (e.g. "PCI:" + pci_name(pci_dev) )
457   * @version:	   KERNEL_VERSION
458   * @capabilities: capabilities of the physical device as a whole
459   * @device_caps:  capabilities accessed via this particular device (node)
460   * @reserved:	   reserved fields for future extensions
461   */
462 struct v4l2_capability {
463 	__u8	driver[16];
464 	__u8	card[32];
465 	__u8	bus_info[32];
466 	__u32   version;
467 	__u32	capabilities;
468 	__u32	device_caps;
469 	__u32	reserved[3];
470 };
471 
472 /* Values for 'capabilities' field */
473 #define V4L2_CAP_VIDEO_CAPTURE		0x00000001  /* Is a video capture device */
474 #define V4L2_CAP_VIDEO_OUTPUT		0x00000002  /* Is a video output device */
475 #define V4L2_CAP_VIDEO_OVERLAY		0x00000004  /* Can do video overlay */
476 #define V4L2_CAP_VBI_CAPTURE		0x00000010  /* Is a raw VBI capture device */
477 #define V4L2_CAP_VBI_OUTPUT		0x00000020  /* Is a raw VBI output device */
478 #define V4L2_CAP_SLICED_VBI_CAPTURE	0x00000040  /* Is a sliced VBI capture device */
479 #define V4L2_CAP_SLICED_VBI_OUTPUT	0x00000080  /* Is a sliced VBI output device */
480 #define V4L2_CAP_RDS_CAPTURE		0x00000100  /* RDS data capture */
481 #define V4L2_CAP_VIDEO_OUTPUT_OVERLAY	0x00000200  /* Can do video output overlay */
482 #define V4L2_CAP_HW_FREQ_SEEK		0x00000400  /* Can do hardware frequency seek  */
483 #define V4L2_CAP_RDS_OUTPUT		0x00000800  /* Is an RDS encoder */
484 
485 /* Is a video capture device that supports multiplanar formats */
486 #define V4L2_CAP_VIDEO_CAPTURE_MPLANE	0x00001000
487 /* Is a video output device that supports multiplanar formats */
488 #define V4L2_CAP_VIDEO_OUTPUT_MPLANE	0x00002000
489 /* Is a video mem-to-mem device that supports multiplanar formats */
490 #define V4L2_CAP_VIDEO_M2M_MPLANE	0x00004000
491 /* Is a video mem-to-mem device */
492 #define V4L2_CAP_VIDEO_M2M		0x00008000
493 
494 #define V4L2_CAP_TUNER			0x00010000  /* has a tuner */
495 #define V4L2_CAP_AUDIO			0x00020000  /* has audio support */
496 #define V4L2_CAP_RADIO			0x00040000  /* is a radio device */
497 #define V4L2_CAP_MODULATOR		0x00080000  /* has a modulator */
498 
499 #define V4L2_CAP_SDR_CAPTURE		0x00100000  /* Is a SDR capture device */
500 #define V4L2_CAP_EXT_PIX_FORMAT		0x00200000  /* Supports the extended pixel format */
501 #define V4L2_CAP_SDR_OUTPUT		0x00400000  /* Is a SDR output device */
502 #define V4L2_CAP_META_CAPTURE		0x00800000  /* Is a metadata capture device */
503 
504 #define V4L2_CAP_READWRITE              0x01000000  /* read/write systemcalls */
505 #define V4L2_CAP_STREAMING              0x04000000  /* streaming I/O ioctls */
506 #define V4L2_CAP_META_OUTPUT		0x08000000  /* Is a metadata output device */
507 
508 #define V4L2_CAP_TOUCH                  0x10000000  /* Is a touch device */
509 
510 #define V4L2_CAP_IO_MC			0x20000000  /* Is input/output controlled by the media controller */
511 
512 #define V4L2_CAP_DEVICE_CAPS            0x80000000  /* sets device capabilities field */
513 
514 /*
515  *	V I D E O   I M A G E   F O R M A T
516  */
517 struct v4l2_pix_format {
518 	__u32			width;
519 	__u32			height;
520 	__u32			pixelformat;
521 	__u32			field;		/* enum v4l2_field */
522 	__u32			bytesperline;	/* for padding, zero if unused */
523 	__u32			sizeimage;
524 	__u32			colorspace;	/* enum v4l2_colorspace */
525 	__u32			priv;		/* private data, depends on pixelformat */
526 	__u32			flags;		/* format flags (V4L2_PIX_FMT_FLAG_*) */
527 	union {
528 		/* enum v4l2_ycbcr_encoding */
529 		__u32			ycbcr_enc;
530 		/* enum v4l2_hsv_encoding */
531 		__u32			hsv_enc;
532 	};
533 	__u32			quantization;	/* enum v4l2_quantization */
534 	__u32			xfer_func;	/* enum v4l2_xfer_func */
535 };
536 
537 /*      Pixel format         FOURCC                          depth  Description  */
538 
539 /* RGB formats (1 or 2 bytes per pixel) */
540 #define V4L2_PIX_FMT_RGB332  v4l2_fourcc('R', 'G', 'B', '1') /*  8  RGB-3-3-2     */
541 #define V4L2_PIX_FMT_RGB444  v4l2_fourcc('R', '4', '4', '4') /* 16  xxxxrrrr ggggbbbb */
542 #define V4L2_PIX_FMT_ARGB444 v4l2_fourcc('A', 'R', '1', '2') /* 16  aaaarrrr ggggbbbb */
543 #define V4L2_PIX_FMT_XRGB444 v4l2_fourcc('X', 'R', '1', '2') /* 16  xxxxrrrr ggggbbbb */
544 #define V4L2_PIX_FMT_RGBA444 v4l2_fourcc('R', 'A', '1', '2') /* 16  rrrrgggg bbbbaaaa */
545 #define V4L2_PIX_FMT_RGBX444 v4l2_fourcc('R', 'X', '1', '2') /* 16  rrrrgggg bbbbxxxx */
546 #define V4L2_PIX_FMT_ABGR444 v4l2_fourcc('A', 'B', '1', '2') /* 16  aaaabbbb ggggrrrr */
547 #define V4L2_PIX_FMT_XBGR444 v4l2_fourcc('X', 'B', '1', '2') /* 16  xxxxbbbb ggggrrrr */
548 #define V4L2_PIX_FMT_BGRA444 v4l2_fourcc('G', 'A', '1', '2') /* 16  bbbbgggg rrrraaaa */
549 #define V4L2_PIX_FMT_BGRX444 v4l2_fourcc('B', 'X', '1', '2') /* 16  bbbbgggg rrrrxxxx */
550 #define V4L2_PIX_FMT_RGB555  v4l2_fourcc('R', 'G', 'B', 'O') /* 16  RGB-5-5-5     */
551 #define V4L2_PIX_FMT_ARGB555 v4l2_fourcc('A', 'R', '1', '5') /* 16  ARGB-1-5-5-5  */
552 #define V4L2_PIX_FMT_XRGB555 v4l2_fourcc('X', 'R', '1', '5') /* 16  XRGB-1-5-5-5  */
553 #define V4L2_PIX_FMT_RGBA555 v4l2_fourcc('R', 'A', '1', '5') /* 16  RGBA-5-5-5-1  */
554 #define V4L2_PIX_FMT_RGBX555 v4l2_fourcc('R', 'X', '1', '5') /* 16  RGBX-5-5-5-1  */
555 #define V4L2_PIX_FMT_ABGR555 v4l2_fourcc('A', 'B', '1', '5') /* 16  ABGR-1-5-5-5  */
556 #define V4L2_PIX_FMT_XBGR555 v4l2_fourcc('X', 'B', '1', '5') /* 16  XBGR-1-5-5-5  */
557 #define V4L2_PIX_FMT_BGRA555 v4l2_fourcc('B', 'A', '1', '5') /* 16  BGRA-5-5-5-1  */
558 #define V4L2_PIX_FMT_BGRX555 v4l2_fourcc('B', 'X', '1', '5') /* 16  BGRX-5-5-5-1  */
559 #define V4L2_PIX_FMT_RGB565  v4l2_fourcc('R', 'G', 'B', 'P') /* 16  RGB-5-6-5     */
560 #define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R', 'G', 'B', 'Q') /* 16  RGB-5-5-5 BE  */
561 #define V4L2_PIX_FMT_ARGB555X v4l2_fourcc_be('A', 'R', '1', '5') /* 16  ARGB-5-5-5 BE */
562 #define V4L2_PIX_FMT_XRGB555X v4l2_fourcc_be('X', 'R', '1', '5') /* 16  XRGB-5-5-5 BE */
563 #define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R', 'G', 'B', 'R') /* 16  RGB-5-6-5 BE  */
564 
565 /* RGB formats (3 or 4 bytes per pixel) */
566 #define V4L2_PIX_FMT_BGR666  v4l2_fourcc('B', 'G', 'R', 'H') /* 18  BGR-6-6-6	  */
567 #define V4L2_PIX_FMT_BGR24   v4l2_fourcc('B', 'G', 'R', '3') /* 24  BGR-8-8-8     */
568 #define V4L2_PIX_FMT_RGB24   v4l2_fourcc('R', 'G', 'B', '3') /* 24  RGB-8-8-8     */
569 #define V4L2_PIX_FMT_BGR32   v4l2_fourcc('B', 'G', 'R', '4') /* 32  BGR-8-8-8-8   */
570 #define V4L2_PIX_FMT_ABGR32  v4l2_fourcc('A', 'R', '2', '4') /* 32  BGRA-8-8-8-8  */
571 #define V4L2_PIX_FMT_XBGR32  v4l2_fourcc('X', 'R', '2', '4') /* 32  BGRX-8-8-8-8  */
572 #define V4L2_PIX_FMT_BGRA32  v4l2_fourcc('R', 'A', '2', '4') /* 32  ABGR-8-8-8-8  */
573 #define V4L2_PIX_FMT_BGRX32  v4l2_fourcc('R', 'X', '2', '4') /* 32  XBGR-8-8-8-8  */
574 #define V4L2_PIX_FMT_RGB32   v4l2_fourcc('R', 'G', 'B', '4') /* 32  RGB-8-8-8-8   */
575 #define V4L2_PIX_FMT_RGBA32  v4l2_fourcc('A', 'B', '2', '4') /* 32  RGBA-8-8-8-8  */
576 #define V4L2_PIX_FMT_RGBX32  v4l2_fourcc('X', 'B', '2', '4') /* 32  RGBX-8-8-8-8  */
577 #define V4L2_PIX_FMT_ARGB32  v4l2_fourcc('B', 'A', '2', '4') /* 32  ARGB-8-8-8-8  */
578 #define V4L2_PIX_FMT_XRGB32  v4l2_fourcc('B', 'X', '2', '4') /* 32  XRGB-8-8-8-8  */
579 
580 /* Grey formats */
581 #define V4L2_PIX_FMT_GREY    v4l2_fourcc('G', 'R', 'E', 'Y') /*  8  Greyscale     */
582 #define V4L2_PIX_FMT_Y4      v4l2_fourcc('Y', '0', '4', ' ') /*  4  Greyscale     */
583 #define V4L2_PIX_FMT_Y6      v4l2_fourcc('Y', '0', '6', ' ') /*  6  Greyscale     */
584 #define V4L2_PIX_FMT_Y10     v4l2_fourcc('Y', '1', '0', ' ') /* 10  Greyscale     */
585 #define V4L2_PIX_FMT_Y12     v4l2_fourcc('Y', '1', '2', ' ') /* 12  Greyscale     */
586 #define V4L2_PIX_FMT_Y14     v4l2_fourcc('Y', '1', '4', ' ') /* 14  Greyscale     */
587 #define V4L2_PIX_FMT_Y16     v4l2_fourcc('Y', '1', '6', ' ') /* 16  Greyscale     */
588 #define V4L2_PIX_FMT_Y16_BE  v4l2_fourcc_be('Y', '1', '6', ' ') /* 16  Greyscale BE  */
589 
590 /* Grey bit-packed formats */
591 #define V4L2_PIX_FMT_Y10BPACK    v4l2_fourcc('Y', '1', '0', 'B') /* 10  Greyscale bit-packed */
592 #define V4L2_PIX_FMT_Y10P    v4l2_fourcc('Y', '1', '0', 'P') /* 10  Greyscale, MIPI RAW10 packed */
593 #define V4L2_PIX_FMT_IPU3_Y10		v4l2_fourcc('i', 'p', '3', 'y') /* IPU3 packed 10-bit greyscale */
594 
595 /* Palette formats */
596 #define V4L2_PIX_FMT_PAL8    v4l2_fourcc('P', 'A', 'L', '8') /*  8  8-bit palette */
597 
598 /* Chrominance formats */
599 #define V4L2_PIX_FMT_UV8     v4l2_fourcc('U', 'V', '8', ' ') /*  8  UV 4:4 */
600 
601 /* Luminance+Chrominance formats */
602 #define V4L2_PIX_FMT_YUYV    v4l2_fourcc('Y', 'U', 'Y', 'V') /* 16  YUV 4:2:2     */
603 #define V4L2_PIX_FMT_YYUV    v4l2_fourcc('Y', 'Y', 'U', 'V') /* 16  YUV 4:2:2     */
604 #define V4L2_PIX_FMT_YVYU    v4l2_fourcc('Y', 'V', 'Y', 'U') /* 16 YVU 4:2:2 */
605 #define V4L2_PIX_FMT_UYVY    v4l2_fourcc('U', 'Y', 'V', 'Y') /* 16  YUV 4:2:2     */
606 #define V4L2_PIX_FMT_VYUY    v4l2_fourcc('V', 'Y', 'U', 'Y') /* 16  YUV 4:2:2     */
607 #define V4L2_PIX_FMT_Y41P    v4l2_fourcc('Y', '4', '1', 'P') /* 12  YUV 4:1:1     */
608 #define V4L2_PIX_FMT_YUV444  v4l2_fourcc('Y', '4', '4', '4') /* 16  xxxxyyyy uuuuvvvv */
609 #define V4L2_PIX_FMT_YUV555  v4l2_fourcc('Y', 'U', 'V', 'O') /* 16  YUV-5-5-5     */
610 #define V4L2_PIX_FMT_YUV565  v4l2_fourcc('Y', 'U', 'V', 'P') /* 16  YUV-5-6-5     */
611 #define V4L2_PIX_FMT_YUV24   v4l2_fourcc('Y', 'U', 'V', '3') /* 24  YUV-8-8-8     */
612 #define V4L2_PIX_FMT_YUV32   v4l2_fourcc('Y', 'U', 'V', '4') /* 32  YUV-8-8-8-8   */
613 #define V4L2_PIX_FMT_AYUV32  v4l2_fourcc('A', 'Y', 'U', 'V') /* 32  AYUV-8-8-8-8  */
614 #define V4L2_PIX_FMT_XYUV32  v4l2_fourcc('X', 'Y', 'U', 'V') /* 32  XYUV-8-8-8-8  */
615 #define V4L2_PIX_FMT_VUYA32  v4l2_fourcc('V', 'U', 'Y', 'A') /* 32  VUYA-8-8-8-8  */
616 #define V4L2_PIX_FMT_VUYX32  v4l2_fourcc('V', 'U', 'Y', 'X') /* 32  VUYX-8-8-8-8  */
617 #define V4L2_PIX_FMT_YUVA32  v4l2_fourcc('Y', 'U', 'V', 'A') /* 32  YUVA-8-8-8-8  */
618 #define V4L2_PIX_FMT_YUVX32  v4l2_fourcc('Y', 'U', 'V', 'X') /* 32  YUVX-8-8-8-8  */
619 #define V4L2_PIX_FMT_M420    v4l2_fourcc('M', '4', '2', '0') /* 12  YUV 4:2:0 2 lines y, 1 line uv interleaved */
620 
621 /* two planes -- one Y, one Cr + Cb interleaved  */
622 #define V4L2_PIX_FMT_NV12    v4l2_fourcc('N', 'V', '1', '2') /* 12  Y/CbCr 4:2:0  */
623 #define V4L2_PIX_FMT_NV21    v4l2_fourcc('N', 'V', '2', '1') /* 12  Y/CrCb 4:2:0  */
624 #define V4L2_PIX_FMT_NV16    v4l2_fourcc('N', 'V', '1', '6') /* 16  Y/CbCr 4:2:2  */
625 #define V4L2_PIX_FMT_NV61    v4l2_fourcc('N', 'V', '6', '1') /* 16  Y/CrCb 4:2:2  */
626 #define V4L2_PIX_FMT_NV24    v4l2_fourcc('N', 'V', '2', '4') /* 24  Y/CbCr 4:4:4  */
627 #define V4L2_PIX_FMT_NV42    v4l2_fourcc('N', 'V', '4', '2') /* 24  Y/CrCb 4:4:4  */
628 #define V4L2_PIX_FMT_P010    v4l2_fourcc('P', '0', '1', '0') /* 24  Y/CbCr 4:2:0 10-bit per component */
629 
630 /* two non contiguous planes - one Y, one Cr + Cb interleaved  */
631 #define V4L2_PIX_FMT_NV12M   v4l2_fourcc('N', 'M', '1', '2') /* 12  Y/CbCr 4:2:0  */
632 #define V4L2_PIX_FMT_NV21M   v4l2_fourcc('N', 'M', '2', '1') /* 21  Y/CrCb 4:2:0  */
633 #define V4L2_PIX_FMT_NV16M   v4l2_fourcc('N', 'M', '1', '6') /* 16  Y/CbCr 4:2:2  */
634 #define V4L2_PIX_FMT_NV61M   v4l2_fourcc('N', 'M', '6', '1') /* 16  Y/CrCb 4:2:2  */
635 
636 /* three planes - Y Cb, Cr */
637 #define V4L2_PIX_FMT_YUV410  v4l2_fourcc('Y', 'U', 'V', '9') /*  9  YUV 4:1:0     */
638 #define V4L2_PIX_FMT_YVU410  v4l2_fourcc('Y', 'V', 'U', '9') /*  9  YVU 4:1:0     */
639 #define V4L2_PIX_FMT_YUV411P v4l2_fourcc('4', '1', '1', 'P') /* 12  YVU411 planar */
640 #define V4L2_PIX_FMT_YUV420  v4l2_fourcc('Y', 'U', '1', '2') /* 12  YUV 4:2:0     */
641 #define V4L2_PIX_FMT_YVU420  v4l2_fourcc('Y', 'V', '1', '2') /* 12  YVU 4:2:0     */
642 #define V4L2_PIX_FMT_YUV422P v4l2_fourcc('4', '2', '2', 'P') /* 16  YVU422 planar */
643 
644 /* three non contiguous planes - Y, Cb, Cr */
645 #define V4L2_PIX_FMT_YUV420M v4l2_fourcc('Y', 'M', '1', '2') /* 12  YUV420 planar */
646 #define V4L2_PIX_FMT_YVU420M v4l2_fourcc('Y', 'M', '2', '1') /* 12  YVU420 planar */
647 #define V4L2_PIX_FMT_YUV422M v4l2_fourcc('Y', 'M', '1', '6') /* 16  YUV422 planar */
648 #define V4L2_PIX_FMT_YVU422M v4l2_fourcc('Y', 'M', '6', '1') /* 16  YVU422 planar */
649 #define V4L2_PIX_FMT_YUV444M v4l2_fourcc('Y', 'M', '2', '4') /* 24  YUV444 planar */
650 #define V4L2_PIX_FMT_YVU444M v4l2_fourcc('Y', 'M', '4', '2') /* 24  YVU444 planar */
651 
652 /* Tiled YUV formats */
653 #define V4L2_PIX_FMT_NV12_4L4 v4l2_fourcc('V', 'T', '1', '2')   /* 12  Y/CbCr 4:2:0  4x4 tiles */
654 #define V4L2_PIX_FMT_NV12_16L16 v4l2_fourcc('H', 'M', '1', '2') /* 12  Y/CbCr 4:2:0 16x16 tiles */
655 #define V4L2_PIX_FMT_NV12_32L32 v4l2_fourcc('S', 'T', '1', '2') /* 12  Y/CbCr 4:2:0 32x32 tiles */
656 #define V4L2_PIX_FMT_P010_4L4 v4l2_fourcc('T', '0', '1', '0') /* 12  Y/CbCr 4:2:0 10-bit 4x4 macroblocks */
657 
658 /* Tiled YUV formats, non contiguous planes */
659 #define V4L2_PIX_FMT_NV12MT  v4l2_fourcc('T', 'M', '1', '2') /* 12  Y/CbCr 4:2:0 64x32 tiles */
660 #define V4L2_PIX_FMT_NV12MT_16X16 v4l2_fourcc('V', 'M', '1', '2') /* 12  Y/CbCr 4:2:0 16x16 tiles */
661 #define V4L2_PIX_FMT_NV12M_8L128      v4l2_fourcc('N', 'A', '1', '2') /* Y/CbCr 4:2:0 8x128 tiles */
662 #define V4L2_PIX_FMT_NV12M_10BE_8L128 v4l2_fourcc_be('N', 'T', '1', '2') /* Y/CbCr 4:2:0 10-bit 8x128 tiles */
663 
664 /* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */
665 #define V4L2_PIX_FMT_SBGGR8  v4l2_fourcc('B', 'A', '8', '1') /*  8  BGBG.. GRGR.. */
666 #define V4L2_PIX_FMT_SGBRG8  v4l2_fourcc('G', 'B', 'R', 'G') /*  8  GBGB.. RGRG.. */
667 #define V4L2_PIX_FMT_SGRBG8  v4l2_fourcc('G', 'R', 'B', 'G') /*  8  GRGR.. BGBG.. */
668 #define V4L2_PIX_FMT_SRGGB8  v4l2_fourcc('R', 'G', 'G', 'B') /*  8  RGRG.. GBGB.. */
669 #define V4L2_PIX_FMT_SBGGR10 v4l2_fourcc('B', 'G', '1', '0') /* 10  BGBG.. GRGR.. */
670 #define V4L2_PIX_FMT_SGBRG10 v4l2_fourcc('G', 'B', '1', '0') /* 10  GBGB.. RGRG.. */
671 #define V4L2_PIX_FMT_SGRBG10 v4l2_fourcc('B', 'A', '1', '0') /* 10  GRGR.. BGBG.. */
672 #define V4L2_PIX_FMT_SRGGB10 v4l2_fourcc('R', 'G', '1', '0') /* 10  RGRG.. GBGB.. */
673 	/* 10bit raw bayer packed, 5 bytes for every 4 pixels */
674 #define V4L2_PIX_FMT_SBGGR10P v4l2_fourcc('p', 'B', 'A', 'A')
675 #define V4L2_PIX_FMT_SGBRG10P v4l2_fourcc('p', 'G', 'A', 'A')
676 #define V4L2_PIX_FMT_SGRBG10P v4l2_fourcc('p', 'g', 'A', 'A')
677 #define V4L2_PIX_FMT_SRGGB10P v4l2_fourcc('p', 'R', 'A', 'A')
678 	/* 10bit raw bayer a-law compressed to 8 bits */
679 #define V4L2_PIX_FMT_SBGGR10ALAW8 v4l2_fourcc('a', 'B', 'A', '8')
680 #define V4L2_PIX_FMT_SGBRG10ALAW8 v4l2_fourcc('a', 'G', 'A', '8')
681 #define V4L2_PIX_FMT_SGRBG10ALAW8 v4l2_fourcc('a', 'g', 'A', '8')
682 #define V4L2_PIX_FMT_SRGGB10ALAW8 v4l2_fourcc('a', 'R', 'A', '8')
683 	/* 10bit raw bayer DPCM compressed to 8 bits */
684 #define V4L2_PIX_FMT_SBGGR10DPCM8 v4l2_fourcc('b', 'B', 'A', '8')
685 #define V4L2_PIX_FMT_SGBRG10DPCM8 v4l2_fourcc('b', 'G', 'A', '8')
686 #define V4L2_PIX_FMT_SGRBG10DPCM8 v4l2_fourcc('B', 'D', '1', '0')
687 #define V4L2_PIX_FMT_SRGGB10DPCM8 v4l2_fourcc('b', 'R', 'A', '8')
688 #define V4L2_PIX_FMT_SBGGR12 v4l2_fourcc('B', 'G', '1', '2') /* 12  BGBG.. GRGR.. */
689 #define V4L2_PIX_FMT_SGBRG12 v4l2_fourcc('G', 'B', '1', '2') /* 12  GBGB.. RGRG.. */
690 #define V4L2_PIX_FMT_SGRBG12 v4l2_fourcc('B', 'A', '1', '2') /* 12  GRGR.. BGBG.. */
691 #define V4L2_PIX_FMT_SRGGB12 v4l2_fourcc('R', 'G', '1', '2') /* 12  RGRG.. GBGB.. */
692 	/* 12bit raw bayer packed, 6 bytes for every 4 pixels */
693 #define V4L2_PIX_FMT_SBGGR12P v4l2_fourcc('p', 'B', 'C', 'C')
694 #define V4L2_PIX_FMT_SGBRG12P v4l2_fourcc('p', 'G', 'C', 'C')
695 #define V4L2_PIX_FMT_SGRBG12P v4l2_fourcc('p', 'g', 'C', 'C')
696 #define V4L2_PIX_FMT_SRGGB12P v4l2_fourcc('p', 'R', 'C', 'C')
697 #define V4L2_PIX_FMT_SBGGR14 v4l2_fourcc('B', 'G', '1', '4') /* 14  BGBG.. GRGR.. */
698 #define V4L2_PIX_FMT_SGBRG14 v4l2_fourcc('G', 'B', '1', '4') /* 14  GBGB.. RGRG.. */
699 #define V4L2_PIX_FMT_SGRBG14 v4l2_fourcc('G', 'R', '1', '4') /* 14  GRGR.. BGBG.. */
700 #define V4L2_PIX_FMT_SRGGB14 v4l2_fourcc('R', 'G', '1', '4') /* 14  RGRG.. GBGB.. */
701 	/* 14bit raw bayer packed, 7 bytes for every 4 pixels */
702 #define V4L2_PIX_FMT_SBGGR14P v4l2_fourcc('p', 'B', 'E', 'E')
703 #define V4L2_PIX_FMT_SGBRG14P v4l2_fourcc('p', 'G', 'E', 'E')
704 #define V4L2_PIX_FMT_SGRBG14P v4l2_fourcc('p', 'g', 'E', 'E')
705 #define V4L2_PIX_FMT_SRGGB14P v4l2_fourcc('p', 'R', 'E', 'E')
706 #define V4L2_PIX_FMT_SBGGR16 v4l2_fourcc('B', 'Y', 'R', '2') /* 16  BGBG.. GRGR.. */
707 #define V4L2_PIX_FMT_SGBRG16 v4l2_fourcc('G', 'B', '1', '6') /* 16  GBGB.. RGRG.. */
708 #define V4L2_PIX_FMT_SGRBG16 v4l2_fourcc('G', 'R', '1', '6') /* 16  GRGR.. BGBG.. */
709 #define V4L2_PIX_FMT_SRGGB16 v4l2_fourcc('R', 'G', '1', '6') /* 16  RGRG.. GBGB.. */
710 
711 /* HSV formats */
712 #define V4L2_PIX_FMT_HSV24 v4l2_fourcc('H', 'S', 'V', '3')
713 #define V4L2_PIX_FMT_HSV32 v4l2_fourcc('H', 'S', 'V', '4')
714 
715 /* compressed formats */
716 #define V4L2_PIX_FMT_MJPEG    v4l2_fourcc('M', 'J', 'P', 'G') /* Motion-JPEG   */
717 #define V4L2_PIX_FMT_JPEG     v4l2_fourcc('J', 'P', 'E', 'G') /* JFIF JPEG     */
718 #define V4L2_PIX_FMT_DV       v4l2_fourcc('d', 'v', 's', 'd') /* 1394          */
719 #define V4L2_PIX_FMT_MPEG     v4l2_fourcc('M', 'P', 'E', 'G') /* MPEG-1/2/4 Multiplexed */
720 #define V4L2_PIX_FMT_H264     v4l2_fourcc('H', '2', '6', '4') /* H264 with start codes */
721 #define V4L2_PIX_FMT_H264_NO_SC v4l2_fourcc('A', 'V', 'C', '1') /* H264 without start codes */
722 #define V4L2_PIX_FMT_H264_MVC v4l2_fourcc('M', '2', '6', '4') /* H264 MVC */
723 #define V4L2_PIX_FMT_H263     v4l2_fourcc('H', '2', '6', '3') /* H263          */
724 #define V4L2_PIX_FMT_MPEG1    v4l2_fourcc('M', 'P', 'G', '1') /* MPEG-1 ES     */
725 #define V4L2_PIX_FMT_MPEG2    v4l2_fourcc('M', 'P', 'G', '2') /* MPEG-2 ES     */
726 #define V4L2_PIX_FMT_MPEG2_SLICE v4l2_fourcc('M', 'G', '2', 'S') /* MPEG-2 parsed slice data */
727 #define V4L2_PIX_FMT_MPEG4    v4l2_fourcc('M', 'P', 'G', '4') /* MPEG-4 part 2 ES */
728 #define V4L2_PIX_FMT_XVID     v4l2_fourcc('X', 'V', 'I', 'D') /* Xvid           */
729 #define V4L2_PIX_FMT_VC1_ANNEX_G v4l2_fourcc('V', 'C', '1', 'G') /* SMPTE 421M Annex G compliant stream */
730 #define V4L2_PIX_FMT_VC1_ANNEX_L v4l2_fourcc('V', 'C', '1', 'L') /* SMPTE 421M Annex L compliant stream */
731 #define V4L2_PIX_FMT_VP8      v4l2_fourcc('V', 'P', '8', '0') /* VP8 */
732 #define V4L2_PIX_FMT_VP8_FRAME v4l2_fourcc('V', 'P', '8', 'F') /* VP8 parsed frame */
733 #define V4L2_PIX_FMT_VP9      v4l2_fourcc('V', 'P', '9', '0') /* VP9 */
734 #define V4L2_PIX_FMT_VP9_FRAME v4l2_fourcc('V', 'P', '9', 'F') /* VP9 parsed frame */
735 #define V4L2_PIX_FMT_HEVC     v4l2_fourcc('H', 'E', 'V', 'C') /* HEVC aka H.265 */
736 #define V4L2_PIX_FMT_FWHT     v4l2_fourcc('F', 'W', 'H', 'T') /* Fast Walsh Hadamard Transform (vicodec) */
737 #define V4L2_PIX_FMT_FWHT_STATELESS     v4l2_fourcc('S', 'F', 'W', 'H') /* Stateless FWHT (vicodec) */
738 #define V4L2_PIX_FMT_H264_SLICE v4l2_fourcc('S', '2', '6', '4') /* H264 parsed slices */
739 #define V4L2_PIX_FMT_HEVC_SLICE v4l2_fourcc('S', '2', '6', '5') /* HEVC parsed slices */
740 
741 /*  Vendor-specific formats   */
742 #define V4L2_PIX_FMT_CPIA1    v4l2_fourcc('C', 'P', 'I', 'A') /* cpia1 YUV */
743 #define V4L2_PIX_FMT_WNVA     v4l2_fourcc('W', 'N', 'V', 'A') /* Winnov hw compress */
744 #define V4L2_PIX_FMT_SN9C10X  v4l2_fourcc('S', '9', '1', '0') /* SN9C10x compression */
745 #define V4L2_PIX_FMT_SN9C20X_I420 v4l2_fourcc('S', '9', '2', '0') /* SN9C20x YUV 4:2:0 */
746 #define V4L2_PIX_FMT_PWC1     v4l2_fourcc('P', 'W', 'C', '1') /* pwc older webcam */
747 #define V4L2_PIX_FMT_PWC2     v4l2_fourcc('P', 'W', 'C', '2') /* pwc newer webcam */
748 #define V4L2_PIX_FMT_ET61X251 v4l2_fourcc('E', '6', '2', '5') /* ET61X251 compression */
749 #define V4L2_PIX_FMT_SPCA501  v4l2_fourcc('S', '5', '0', '1') /* YUYV per line */
750 #define V4L2_PIX_FMT_SPCA505  v4l2_fourcc('S', '5', '0', '5') /* YYUV per line */
751 #define V4L2_PIX_FMT_SPCA508  v4l2_fourcc('S', '5', '0', '8') /* YUVY per line */
752 #define V4L2_PIX_FMT_SPCA561  v4l2_fourcc('S', '5', '6', '1') /* compressed GBRG bayer */
753 #define V4L2_PIX_FMT_PAC207   v4l2_fourcc('P', '2', '0', '7') /* compressed BGGR bayer */
754 #define V4L2_PIX_FMT_MR97310A v4l2_fourcc('M', '3', '1', '0') /* compressed BGGR bayer */
755 #define V4L2_PIX_FMT_JL2005BCD v4l2_fourcc('J', 'L', '2', '0') /* compressed RGGB bayer */
756 #define V4L2_PIX_FMT_SN9C2028 v4l2_fourcc('S', 'O', 'N', 'X') /* compressed GBRG bayer */
757 #define V4L2_PIX_FMT_SQ905C   v4l2_fourcc('9', '0', '5', 'C') /* compressed RGGB bayer */
758 #define V4L2_PIX_FMT_PJPG     v4l2_fourcc('P', 'J', 'P', 'G') /* Pixart 73xx JPEG */
759 #define V4L2_PIX_FMT_OV511    v4l2_fourcc('O', '5', '1', '1') /* ov511 JPEG */
760 #define V4L2_PIX_FMT_OV518    v4l2_fourcc('O', '5', '1', '8') /* ov518 JPEG */
761 #define V4L2_PIX_FMT_STV0680  v4l2_fourcc('S', '6', '8', '0') /* stv0680 bayer */
762 #define V4L2_PIX_FMT_TM6000   v4l2_fourcc('T', 'M', '6', '0') /* tm5600/tm60x0 */
763 #define V4L2_PIX_FMT_CIT_YYVYUY v4l2_fourcc('C', 'I', 'T', 'V') /* one line of Y then 1 line of VYUY */
764 #define V4L2_PIX_FMT_KONICA420  v4l2_fourcc('K', 'O', 'N', 'I') /* YUV420 planar in blocks of 256 pixels */
765 #define V4L2_PIX_FMT_JPGL	v4l2_fourcc('J', 'P', 'G', 'L') /* JPEG-Lite */
766 #define V4L2_PIX_FMT_SE401      v4l2_fourcc('S', '4', '0', '1') /* se401 janggu compressed rgb */
767 #define V4L2_PIX_FMT_S5C_UYVY_JPG v4l2_fourcc('S', '5', 'C', 'I') /* S5C73M3 interleaved UYVY/JPEG */
768 #define V4L2_PIX_FMT_Y8I      v4l2_fourcc('Y', '8', 'I', ' ') /* Greyscale 8-bit L/R interleaved */
769 #define V4L2_PIX_FMT_Y12I     v4l2_fourcc('Y', '1', '2', 'I') /* Greyscale 12-bit L/R interleaved */
770 #define V4L2_PIX_FMT_Z16      v4l2_fourcc('Z', '1', '6', ' ') /* Depth data 16-bit */
771 #define V4L2_PIX_FMT_MT21C    v4l2_fourcc('M', 'T', '2', '1') /* Mediatek compressed block mode  */
772 #define V4L2_PIX_FMT_MM21     v4l2_fourcc('M', 'M', '2', '1') /* Mediatek 8-bit block mode, two non-contiguous planes */
773 #define V4L2_PIX_FMT_INZI     v4l2_fourcc('I', 'N', 'Z', 'I') /* Intel Planar Greyscale 10-bit and Depth 16-bit */
774 #define V4L2_PIX_FMT_CNF4     v4l2_fourcc('C', 'N', 'F', '4') /* Intel 4-bit packed depth confidence information */
775 #define V4L2_PIX_FMT_HI240    v4l2_fourcc('H', 'I', '2', '4') /* BTTV 8-bit dithered RGB */
776 #define V4L2_PIX_FMT_QC08C    v4l2_fourcc('Q', '0', '8', 'C') /* Qualcomm 8-bit compressed */
777 #define V4L2_PIX_FMT_QC10C    v4l2_fourcc('Q', '1', '0', 'C') /* Qualcomm 10-bit compressed */
778 
779 /* 10bit raw packed, 32 bytes for every 25 pixels, last LSB 6 bits unused */
780 #define V4L2_PIX_FMT_IPU3_SBGGR10	v4l2_fourcc('i', 'p', '3', 'b') /* IPU3 packed 10-bit BGGR bayer */
781 #define V4L2_PIX_FMT_IPU3_SGBRG10	v4l2_fourcc('i', 'p', '3', 'g') /* IPU3 packed 10-bit GBRG bayer */
782 #define V4L2_PIX_FMT_IPU3_SGRBG10	v4l2_fourcc('i', 'p', '3', 'G') /* IPU3 packed 10-bit GRBG bayer */
783 #define V4L2_PIX_FMT_IPU3_SRGGB10	v4l2_fourcc('i', 'p', '3', 'r') /* IPU3 packed 10-bit RGGB bayer */
784 
785 /* SDR formats - used only for Software Defined Radio devices */
786 #define V4L2_SDR_FMT_CU8          v4l2_fourcc('C', 'U', '0', '8') /* IQ u8 */
787 #define V4L2_SDR_FMT_CU16LE       v4l2_fourcc('C', 'U', '1', '6') /* IQ u16le */
788 #define V4L2_SDR_FMT_CS8          v4l2_fourcc('C', 'S', '0', '8') /* complex s8 */
789 #define V4L2_SDR_FMT_CS14LE       v4l2_fourcc('C', 'S', '1', '4') /* complex s14le */
790 #define V4L2_SDR_FMT_RU12LE       v4l2_fourcc('R', 'U', '1', '2') /* real u12le */
791 #define V4L2_SDR_FMT_PCU16BE	  v4l2_fourcc('P', 'C', '1', '6') /* planar complex u16be */
792 #define V4L2_SDR_FMT_PCU18BE	  v4l2_fourcc('P', 'C', '1', '8') /* planar complex u18be */
793 #define V4L2_SDR_FMT_PCU20BE	  v4l2_fourcc('P', 'C', '2', '0') /* planar complex u20be */
794 
795 /* Touch formats - used for Touch devices */
796 #define V4L2_TCH_FMT_DELTA_TD16	v4l2_fourcc('T', 'D', '1', '6') /* 16-bit signed deltas */
797 #define V4L2_TCH_FMT_DELTA_TD08	v4l2_fourcc('T', 'D', '0', '8') /* 8-bit signed deltas */
798 #define V4L2_TCH_FMT_TU16	v4l2_fourcc('T', 'U', '1', '6') /* 16-bit unsigned touch data */
799 #define V4L2_TCH_FMT_TU08	v4l2_fourcc('T', 'U', '0', '8') /* 8-bit unsigned touch data */
800 
801 /* Meta-data formats */
802 #define V4L2_META_FMT_VSP1_HGO    v4l2_fourcc('V', 'S', 'P', 'H') /* R-Car VSP1 1-D Histogram */
803 #define V4L2_META_FMT_VSP1_HGT    v4l2_fourcc('V', 'S', 'P', 'T') /* R-Car VSP1 2-D Histogram */
804 #define V4L2_META_FMT_UVC         v4l2_fourcc('U', 'V', 'C', 'H') /* UVC Payload Header metadata */
805 #define V4L2_META_FMT_D4XX        v4l2_fourcc('D', '4', 'X', 'X') /* D4XX Payload Header metadata */
806 #define V4L2_META_FMT_VIVID	  v4l2_fourcc('V', 'I', 'V', 'D') /* Vivid Metadata */
807 
808 /* Vendor specific - used for RK_ISP1 camera sub-system */
809 #define V4L2_META_FMT_RK_ISP1_PARAMS	v4l2_fourcc('R', 'K', '1', 'P') /* Rockchip ISP1 3A Parameters */
810 #define V4L2_META_FMT_RK_ISP1_STAT_3A	v4l2_fourcc('R', 'K', '1', 'S') /* Rockchip ISP1 3A Statistics */
811 
812 /* priv field value to indicates that subsequent fields are valid. */
813 #define V4L2_PIX_FMT_PRIV_MAGIC		0xfeedcafe
814 
815 /* Flags */
816 #define V4L2_PIX_FMT_FLAG_PREMUL_ALPHA	0x00000001
817 #define V4L2_PIX_FMT_FLAG_SET_CSC	0x00000002
818 
819 /*
820  *	F O R M A T   E N U M E R A T I O N
821  */
822 struct v4l2_fmtdesc {
823 	__u32		    index;             /* Format number      */
824 	__u32		    type;              /* enum v4l2_buf_type */
825 	__u32               flags;
826 	__u8		    description[32];   /* Description string */
827 	__u32		    pixelformat;       /* Format fourcc      */
828 	__u32		    mbus_code;		/* Media bus code    */
829 	__u32		    reserved[3];
830 };
831 
832 #define V4L2_FMT_FLAG_COMPRESSED		0x0001
833 #define V4L2_FMT_FLAG_EMULATED			0x0002
834 #define V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM	0x0004
835 #define V4L2_FMT_FLAG_DYN_RESOLUTION		0x0008
836 #define V4L2_FMT_FLAG_ENC_CAP_FRAME_INTERVAL	0x0010
837 #define V4L2_FMT_FLAG_CSC_COLORSPACE		0x0020
838 #define V4L2_FMT_FLAG_CSC_XFER_FUNC		0x0040
839 #define V4L2_FMT_FLAG_CSC_YCBCR_ENC		0x0080
840 #define V4L2_FMT_FLAG_CSC_HSV_ENC		V4L2_FMT_FLAG_CSC_YCBCR_ENC
841 #define V4L2_FMT_FLAG_CSC_QUANTIZATION		0x0100
842 
843 	/* Frame Size and frame rate enumeration */
844 /*
845  *	F R A M E   S I Z E   E N U M E R A T I O N
846  */
847 enum v4l2_frmsizetypes {
848 	V4L2_FRMSIZE_TYPE_DISCRETE	= 1,
849 	V4L2_FRMSIZE_TYPE_CONTINUOUS	= 2,
850 	V4L2_FRMSIZE_TYPE_STEPWISE	= 3,
851 };
852 
853 struct v4l2_frmsize_discrete {
854 	__u32			width;		/* Frame width [pixel] */
855 	__u32			height;		/* Frame height [pixel] */
856 };
857 
858 struct v4l2_frmsize_stepwise {
859 	__u32			min_width;	/* Minimum frame width [pixel] */
860 	__u32			max_width;	/* Maximum frame width [pixel] */
861 	__u32			step_width;	/* Frame width step size [pixel] */
862 	__u32			min_height;	/* Minimum frame height [pixel] */
863 	__u32			max_height;	/* Maximum frame height [pixel] */
864 	__u32			step_height;	/* Frame height step size [pixel] */
865 };
866 
867 struct v4l2_frmsizeenum {
868 	__u32			index;		/* Frame size number */
869 	__u32			pixel_format;	/* Pixel format */
870 	__u32			type;		/* Frame size type the device supports. */
871 
872 	union {					/* Frame size */
873 		struct v4l2_frmsize_discrete	discrete;
874 		struct v4l2_frmsize_stepwise	stepwise;
875 	};
876 
877 	__u32   reserved[2];			/* Reserved space for future use */
878 };
879 
880 /*
881  *	F R A M E   R A T E   E N U M E R A T I O N
882  */
883 enum v4l2_frmivaltypes {
884 	V4L2_FRMIVAL_TYPE_DISCRETE	= 1,
885 	V4L2_FRMIVAL_TYPE_CONTINUOUS	= 2,
886 	V4L2_FRMIVAL_TYPE_STEPWISE	= 3,
887 };
888 
889 struct v4l2_frmival_stepwise {
890 	struct v4l2_fract	min;		/* Minimum frame interval [s] */
891 	struct v4l2_fract	max;		/* Maximum frame interval [s] */
892 	struct v4l2_fract	step;		/* Frame interval step size [s] */
893 };
894 
895 struct v4l2_frmivalenum {
896 	__u32			index;		/* Frame format index */
897 	__u32			pixel_format;	/* Pixel format */
898 	__u32			width;		/* Frame width */
899 	__u32			height;		/* Frame height */
900 	__u32			type;		/* Frame interval type the device supports. */
901 
902 	union {					/* Frame interval */
903 		struct v4l2_fract		discrete;
904 		struct v4l2_frmival_stepwise	stepwise;
905 	};
906 
907 	__u32	reserved[2];			/* Reserved space for future use */
908 };
909 
910 /*
911  *	T I M E C O D E
912  */
913 struct v4l2_timecode {
914 	__u32	type;
915 	__u32	flags;
916 	__u8	frames;
917 	__u8	seconds;
918 	__u8	minutes;
919 	__u8	hours;
920 	__u8	userbits[4];
921 };
922 
923 /*  Type  */
924 #define V4L2_TC_TYPE_24FPS		1
925 #define V4L2_TC_TYPE_25FPS		2
926 #define V4L2_TC_TYPE_30FPS		3
927 #define V4L2_TC_TYPE_50FPS		4
928 #define V4L2_TC_TYPE_60FPS		5
929 
930 /*  Flags  */
931 #define V4L2_TC_FLAG_DROPFRAME		0x0001 /* "drop-frame" mode */
932 #define V4L2_TC_FLAG_COLORFRAME		0x0002
933 #define V4L2_TC_USERBITS_field		0x000C
934 #define V4L2_TC_USERBITS_USERDEFINED	0x0000
935 #define V4L2_TC_USERBITS_8BITCHARS	0x0008
936 /* The above is based on SMPTE timecodes */
937 
938 struct v4l2_jpegcompression {
939 	int quality;
940 
941 	int  APPn;              /* Number of APP segment to be written,
942 				 * must be 0..15 */
943 	int  APP_len;           /* Length of data in JPEG APPn segment */
944 	char APP_data[60];      /* Data in the JPEG APPn segment. */
945 
946 	int  COM_len;           /* Length of data in JPEG COM segment */
947 	char COM_data[60];      /* Data in JPEG COM segment */
948 
949 	__u32 jpeg_markers;     /* Which markers should go into the JPEG
950 				 * output. Unless you exactly know what
951 				 * you do, leave them untouched.
952 				 * Including less markers will make the
953 				 * resulting code smaller, but there will
954 				 * be fewer applications which can read it.
955 				 * The presence of the APP and COM marker
956 				 * is influenced by APP_len and COM_len
957 				 * ONLY, not by this property! */
958 
959 #define V4L2_JPEG_MARKER_DHT (1<<3)    /* Define Huffman Tables */
960 #define V4L2_JPEG_MARKER_DQT (1<<4)    /* Define Quantization Tables */
961 #define V4L2_JPEG_MARKER_DRI (1<<5)    /* Define Restart Interval */
962 #define V4L2_JPEG_MARKER_COM (1<<6)    /* Comment segment */
963 #define V4L2_JPEG_MARKER_APP (1<<7)    /* App segment, driver will
964 					* always use APP0 */
965 };
966 
967 /*
968  *	M E M O R Y - M A P P I N G   B U F F E R S
969  */
970 
971 #ifdef __KERNEL__
972 /*
973  * This corresponds to the user space version of timeval
974  * for 64-bit time_t. sparc64 is different from everyone
975  * else, using the microseconds in the wrong half of the
976  * second 64-bit word.
977  */
978 struct __kernel_v4l2_timeval {
979 	long long	tv_sec;
980 #if defined(__sparc__) && defined(__arch64__)
981 	int		tv_usec;
982 	int		__pad;
983 #else
984 	long long	tv_usec;
985 #endif
986 };
987 #endif
988 
989 struct v4l2_requestbuffers {
990 	__u32			count;
991 	__u32			type;		/* enum v4l2_buf_type */
992 	__u32			memory;		/* enum v4l2_memory */
993 	__u32			capabilities;
994 	__u8			flags;
995 	__u8			reserved[3];
996 };
997 
998 #define V4L2_MEMORY_FLAG_NON_COHERENT			(1 << 0)
999 
1000 /* capabilities for struct v4l2_requestbuffers and v4l2_create_buffers */
1001 #define V4L2_BUF_CAP_SUPPORTS_MMAP			(1 << 0)
1002 #define V4L2_BUF_CAP_SUPPORTS_USERPTR			(1 << 1)
1003 #define V4L2_BUF_CAP_SUPPORTS_DMABUF			(1 << 2)
1004 #define V4L2_BUF_CAP_SUPPORTS_REQUESTS			(1 << 3)
1005 #define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS		(1 << 4)
1006 #define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF	(1 << 5)
1007 #define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS		(1 << 6)
1008 
1009 /**
1010  * struct v4l2_plane - plane info for multi-planar buffers
1011  * @bytesused:		number of bytes occupied by data in the plane (payload)
1012  * @length:		size of this plane (NOT the payload) in bytes
1013  * @mem_offset:		when memory in the associated struct v4l2_buffer is
1014  *			V4L2_MEMORY_MMAP, equals the offset from the start of
1015  *			the device memory for this plane (or is a "cookie" that
1016  *			should be passed to mmap() called on the video node)
1017  * @userptr:		when memory is V4L2_MEMORY_USERPTR, a userspace pointer
1018  *			pointing to this plane
1019  * @fd:			when memory is V4L2_MEMORY_DMABUF, a userspace file
1020  *			descriptor associated with this plane
1021  * @m:			union of @mem_offset, @userptr and @fd
1022  * @data_offset:	offset in the plane to the start of data; usually 0,
1023  *			unless there is a header in front of the data
1024  * @reserved:		drivers and applications must zero this array
1025  *
1026  * Multi-planar buffers consist of one or more planes, e.g. an YCbCr buffer
1027  * with two planes can have one plane for Y, and another for interleaved CbCr
1028  * components. Each plane can reside in a separate memory buffer, or even in
1029  * a completely separate memory node (e.g. in embedded devices).
1030  */
1031 struct v4l2_plane {
1032 	__u32			bytesused;
1033 	__u32			length;
1034 	union {
1035 		__u32		mem_offset;
1036 		unsigned long	userptr;
1037 		__s32		fd;
1038 	} m;
1039 	__u32			data_offset;
1040 	__u32			reserved[11];
1041 };
1042 
1043 /**
1044  * struct v4l2_buffer - video buffer info
1045  * @index:	id number of the buffer
1046  * @type:	enum v4l2_buf_type; buffer type (type == *_MPLANE for
1047  *		multiplanar buffers);
1048  * @bytesused:	number of bytes occupied by data in the buffer (payload);
1049  *		unused (set to 0) for multiplanar buffers
1050  * @flags:	buffer informational flags
1051  * @field:	enum v4l2_field; field order of the image in the buffer
1052  * @timestamp:	frame timestamp
1053  * @timecode:	frame timecode
1054  * @sequence:	sequence count of this frame
1055  * @memory:	enum v4l2_memory; the method, in which the actual video data is
1056  *		passed
1057  * @offset:	for non-multiplanar buffers with memory == V4L2_MEMORY_MMAP;
1058  *		offset from the start of the device memory for this plane,
1059  *		(or a "cookie" that should be passed to mmap() as offset)
1060  * @userptr:	for non-multiplanar buffers with memory == V4L2_MEMORY_USERPTR;
1061  *		a userspace pointer pointing to this buffer
1062  * @fd:		for non-multiplanar buffers with memory == V4L2_MEMORY_DMABUF;
1063  *		a userspace file descriptor associated with this buffer
1064  * @planes:	for multiplanar buffers; userspace pointer to the array of plane
1065  *		info structs for this buffer
1066  * @m:		union of @offset, @userptr, @planes and @fd
1067  * @length:	size in bytes of the buffer (NOT its payload) for single-plane
1068  *		buffers (when type != *_MPLANE); number of elements in the
1069  *		planes array for multi-plane buffers
1070  * @reserved2:	drivers and applications must zero this field
1071  * @request_fd: fd of the request that this buffer should use
1072  * @reserved:	for backwards compatibility with applications that do not know
1073  *		about @request_fd
1074  *
1075  * Contains data exchanged by application and driver using one of the Streaming
1076  * I/O methods.
1077  */
1078 struct v4l2_buffer {
1079 	__u32			index;
1080 	__u32			type;
1081 	__u32			bytesused;
1082 	__u32			flags;
1083 	__u32			field;
1084 #ifdef __KERNEL__
1085 	struct __kernel_v4l2_timeval timestamp;
1086 #else
1087 	struct timeval		timestamp;
1088 #endif
1089 	struct v4l2_timecode	timecode;
1090 	__u32			sequence;
1091 
1092 	/* memory location */
1093 	__u32			memory;
1094 	union {
1095 		__u32           offset;
1096 		unsigned long   userptr;
1097 		struct v4l2_plane *planes;
1098 		__s32		fd;
1099 	} m;
1100 	__u32			length;
1101 	__u32			reserved2;
1102 	union {
1103 		__s32		request_fd;
1104 		__u32		reserved;
1105 	};
1106 };
1107 
1108 #ifndef __KERNEL__
1109 /**
1110  * v4l2_timeval_to_ns - Convert timeval to nanoseconds
1111  * @tv:		pointer to the timeval variable to be converted
1112  *
1113  * Returns the scalar nanosecond representation of the timeval
1114  * parameter.
1115  */
v4l2_timeval_to_ns(const struct timeval * tv)1116 static inline __u64 v4l2_timeval_to_ns(const struct timeval *tv)
1117 {
1118 	return (__u64)tv->tv_sec * 1000000000ULL + tv->tv_usec * 1000;
1119 }
1120 #endif
1121 
1122 /*  Flags for 'flags' field */
1123 /* Buffer is mapped (flag) */
1124 #define V4L2_BUF_FLAG_MAPPED			0x00000001
1125 /* Buffer is queued for processing */
1126 #define V4L2_BUF_FLAG_QUEUED			0x00000002
1127 /* Buffer is ready */
1128 #define V4L2_BUF_FLAG_DONE			0x00000004
1129 /* Image is a keyframe (I-frame) */
1130 #define V4L2_BUF_FLAG_KEYFRAME			0x00000008
1131 /* Image is a P-frame */
1132 #define V4L2_BUF_FLAG_PFRAME			0x00000010
1133 /* Image is a B-frame */
1134 #define V4L2_BUF_FLAG_BFRAME			0x00000020
1135 /* Buffer is ready, but the data contained within is corrupted. */
1136 #define V4L2_BUF_FLAG_ERROR			0x00000040
1137 /* Buffer is added to an unqueued request */
1138 #define V4L2_BUF_FLAG_IN_REQUEST		0x00000080
1139 /* timecode field is valid */
1140 #define V4L2_BUF_FLAG_TIMECODE			0x00000100
1141 /* Don't return the capture buffer until OUTPUT timestamp changes */
1142 #define V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF	0x00000200
1143 /* Buffer is prepared for queuing */
1144 #define V4L2_BUF_FLAG_PREPARED			0x00000400
1145 /* Cache handling flags */
1146 #define V4L2_BUF_FLAG_NO_CACHE_INVALIDATE	0x00000800
1147 #define V4L2_BUF_FLAG_NO_CACHE_CLEAN		0x00001000
1148 /* Timestamp type */
1149 #define V4L2_BUF_FLAG_TIMESTAMP_MASK		0x0000e000
1150 #define V4L2_BUF_FLAG_TIMESTAMP_UNKNOWN		0x00000000
1151 #define V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC	0x00002000
1152 #define V4L2_BUF_FLAG_TIMESTAMP_COPY		0x00004000
1153 /* Timestamp sources. */
1154 #define V4L2_BUF_FLAG_TSTAMP_SRC_MASK		0x00070000
1155 #define V4L2_BUF_FLAG_TSTAMP_SRC_EOF		0x00000000
1156 #define V4L2_BUF_FLAG_TSTAMP_SRC_SOE		0x00010000
1157 /* mem2mem encoder/decoder */
1158 #define V4L2_BUF_FLAG_LAST			0x00100000
1159 /* request_fd is valid */
1160 #define V4L2_BUF_FLAG_REQUEST_FD		0x00800000
1161 
1162 /**
1163  * struct v4l2_exportbuffer - export of video buffer as DMABUF file descriptor
1164  *
1165  * @index:	id number of the buffer
1166  * @type:	enum v4l2_buf_type; buffer type (type == *_MPLANE for
1167  *		multiplanar buffers);
1168  * @plane:	index of the plane to be exported, 0 for single plane queues
1169  * @flags:	flags for newly created file, currently only O_CLOEXEC is
1170  *		supported, refer to manual of open syscall for more details
1171  * @fd:		file descriptor associated with DMABUF (set by driver)
1172  * @reserved:	drivers and applications must zero this array
1173  *
1174  * Contains data used for exporting a video buffer as DMABUF file descriptor.
1175  * The buffer is identified by a 'cookie' returned by VIDIOC_QUERYBUF
1176  * (identical to the cookie used to mmap() the buffer to userspace). All
1177  * reserved fields must be set to zero. The field reserved0 is expected to
1178  * become a structure 'type' allowing an alternative layout of the structure
1179  * content. Therefore this field should not be used for any other extensions.
1180  */
1181 struct v4l2_exportbuffer {
1182 	__u32		type; /* enum v4l2_buf_type */
1183 	__u32		index;
1184 	__u32		plane;
1185 	__u32		flags;
1186 	__s32		fd;
1187 	__u32		reserved[11];
1188 };
1189 
1190 /*
1191  *	O V E R L A Y   P R E V I E W
1192  */
1193 struct v4l2_framebuffer {
1194 	__u32			capability;
1195 	__u32			flags;
1196 /* FIXME: in theory we should pass something like PCI device + memory
1197  * region + offset instead of some physical address */
1198 	void                    *base;
1199 	struct {
1200 		__u32		width;
1201 		__u32		height;
1202 		__u32		pixelformat;
1203 		__u32		field;		/* enum v4l2_field */
1204 		__u32		bytesperline;	/* for padding, zero if unused */
1205 		__u32		sizeimage;
1206 		__u32		colorspace;	/* enum v4l2_colorspace */
1207 		__u32		priv;		/* reserved field, set to 0 */
1208 	} fmt;
1209 };
1210 /*  Flags for the 'capability' field. Read only */
1211 #define V4L2_FBUF_CAP_EXTERNOVERLAY	0x0001
1212 #define V4L2_FBUF_CAP_CHROMAKEY		0x0002
1213 #define V4L2_FBUF_CAP_LIST_CLIPPING     0x0004
1214 #define V4L2_FBUF_CAP_BITMAP_CLIPPING	0x0008
1215 #define V4L2_FBUF_CAP_LOCAL_ALPHA	0x0010
1216 #define V4L2_FBUF_CAP_GLOBAL_ALPHA	0x0020
1217 #define V4L2_FBUF_CAP_LOCAL_INV_ALPHA	0x0040
1218 #define V4L2_FBUF_CAP_SRC_CHROMAKEY	0x0080
1219 /*  Flags for the 'flags' field. */
1220 #define V4L2_FBUF_FLAG_PRIMARY		0x0001
1221 #define V4L2_FBUF_FLAG_OVERLAY		0x0002
1222 #define V4L2_FBUF_FLAG_CHROMAKEY	0x0004
1223 #define V4L2_FBUF_FLAG_LOCAL_ALPHA	0x0008
1224 #define V4L2_FBUF_FLAG_GLOBAL_ALPHA	0x0010
1225 #define V4L2_FBUF_FLAG_LOCAL_INV_ALPHA	0x0020
1226 #define V4L2_FBUF_FLAG_SRC_CHROMAKEY	0x0040
1227 
1228 struct v4l2_clip {
1229 	struct v4l2_rect        c;
1230 	struct v4l2_clip	__user *next;
1231 };
1232 
1233 struct v4l2_window {
1234 	struct v4l2_rect        w;
1235 	__u32			field;	 /* enum v4l2_field */
1236 	__u32			chromakey;
1237 	struct v4l2_clip	*clips;
1238 	__u32			clipcount;
1239 	void			__user *bitmap;
1240 	__u8                    global_alpha;
1241 };
1242 
1243 /*
1244  *	C A P T U R E   P A R A M E T E R S
1245  */
1246 struct v4l2_captureparm {
1247 	__u32		   capability;	  /*  Supported modes */
1248 	__u32		   capturemode;	  /*  Current mode */
1249 	struct v4l2_fract  timeperframe;  /*  Time per frame in seconds */
1250 	__u32		   extendedmode;  /*  Driver-specific extensions */
1251 	__u32              readbuffers;   /*  # of buffers for read */
1252 	__u32		   reserved[4];
1253 };
1254 
1255 /*  Flags for 'capability' and 'capturemode' fields */
1256 #define V4L2_MODE_HIGHQUALITY	0x0001	/*  High quality imaging mode */
1257 #define V4L2_CAP_TIMEPERFRAME	0x1000	/*  timeperframe field is supported */
1258 
1259 struct v4l2_outputparm {
1260 	__u32		   capability;	 /*  Supported modes */
1261 	__u32		   outputmode;	 /*  Current mode */
1262 	struct v4l2_fract  timeperframe; /*  Time per frame in seconds */
1263 	__u32		   extendedmode; /*  Driver-specific extensions */
1264 	__u32              writebuffers; /*  # of buffers for write */
1265 	__u32		   reserved[4];
1266 };
1267 
1268 /*
1269  *	I N P U T   I M A G E   C R O P P I N G
1270  */
1271 struct v4l2_cropcap {
1272 	__u32			type;	/* enum v4l2_buf_type */
1273 	struct v4l2_rect        bounds;
1274 	struct v4l2_rect        defrect;
1275 	struct v4l2_fract       pixelaspect;
1276 };
1277 
1278 struct v4l2_crop {
1279 	__u32			type;	/* enum v4l2_buf_type */
1280 	struct v4l2_rect        c;
1281 };
1282 
1283 /**
1284  * struct v4l2_selection - selection info
1285  * @type:	buffer type (do not use *_MPLANE types)
1286  * @target:	Selection target, used to choose one of possible rectangles;
1287  *		defined in v4l2-common.h; V4L2_SEL_TGT_* .
1288  * @flags:	constraints flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*.
1289  * @r:		coordinates of selection window
1290  * @reserved:	for future use, rounds structure size to 64 bytes, set to zero
1291  *
1292  * Hardware may use multiple helper windows to process a video stream.
1293  * The structure is used to exchange this selection areas between
1294  * an application and a driver.
1295  */
1296 struct v4l2_selection {
1297 	__u32			type;
1298 	__u32			target;
1299 	__u32                   flags;
1300 	struct v4l2_rect        r;
1301 	__u32                   reserved[9];
1302 };
1303 
1304 
1305 /*
1306  *      A N A L O G   V I D E O   S T A N D A R D
1307  */
1308 
1309 typedef __u64 v4l2_std_id;
1310 
1311 /*
1312  * Attention: Keep the V4L2_STD_* bit definitions in sync with
1313  * include/dt-bindings/display/sdtv-standards.h SDTV_STD_* bit definitions.
1314  */
1315 /* one bit for each */
1316 #define V4L2_STD_PAL_B          ((v4l2_std_id)0x00000001)
1317 #define V4L2_STD_PAL_B1         ((v4l2_std_id)0x00000002)
1318 #define V4L2_STD_PAL_G          ((v4l2_std_id)0x00000004)
1319 #define V4L2_STD_PAL_H          ((v4l2_std_id)0x00000008)
1320 #define V4L2_STD_PAL_I          ((v4l2_std_id)0x00000010)
1321 #define V4L2_STD_PAL_D          ((v4l2_std_id)0x00000020)
1322 #define V4L2_STD_PAL_D1         ((v4l2_std_id)0x00000040)
1323 #define V4L2_STD_PAL_K          ((v4l2_std_id)0x00000080)
1324 
1325 #define V4L2_STD_PAL_M          ((v4l2_std_id)0x00000100)
1326 #define V4L2_STD_PAL_N          ((v4l2_std_id)0x00000200)
1327 #define V4L2_STD_PAL_Nc         ((v4l2_std_id)0x00000400)
1328 #define V4L2_STD_PAL_60         ((v4l2_std_id)0x00000800)
1329 
1330 #define V4L2_STD_NTSC_M         ((v4l2_std_id)0x00001000)	/* BTSC */
1331 #define V4L2_STD_NTSC_M_JP      ((v4l2_std_id)0x00002000)	/* EIA-J */
1332 #define V4L2_STD_NTSC_443       ((v4l2_std_id)0x00004000)
1333 #define V4L2_STD_NTSC_M_KR      ((v4l2_std_id)0x00008000)	/* FM A2 */
1334 
1335 #define V4L2_STD_SECAM_B        ((v4l2_std_id)0x00010000)
1336 #define V4L2_STD_SECAM_D        ((v4l2_std_id)0x00020000)
1337 #define V4L2_STD_SECAM_G        ((v4l2_std_id)0x00040000)
1338 #define V4L2_STD_SECAM_H        ((v4l2_std_id)0x00080000)
1339 #define V4L2_STD_SECAM_K        ((v4l2_std_id)0x00100000)
1340 #define V4L2_STD_SECAM_K1       ((v4l2_std_id)0x00200000)
1341 #define V4L2_STD_SECAM_L        ((v4l2_std_id)0x00400000)
1342 #define V4L2_STD_SECAM_LC       ((v4l2_std_id)0x00800000)
1343 
1344 /* ATSC/HDTV */
1345 #define V4L2_STD_ATSC_8_VSB     ((v4l2_std_id)0x01000000)
1346 #define V4L2_STD_ATSC_16_VSB    ((v4l2_std_id)0x02000000)
1347 
1348 /* FIXME:
1349    Although std_id is 64 bits, there is an issue on PPC32 architecture that
1350    makes switch(__u64) to break. So, there's a hack on v4l2-common.c rounding
1351    this value to 32 bits.
1352    As, currently, the max value is for V4L2_STD_ATSC_16_VSB (30 bits wide),
1353    it should work fine. However, if needed to add more than two standards,
1354    v4l2-common.c should be fixed.
1355  */
1356 
1357 /*
1358  * Some macros to merge video standards in order to make live easier for the
1359  * drivers and V4L2 applications
1360  */
1361 
1362 /*
1363  * "Common" NTSC/M - It should be noticed that V4L2_STD_NTSC_443 is
1364  * Missing here.
1365  */
1366 #define V4L2_STD_NTSC           (V4L2_STD_NTSC_M	|\
1367 				 V4L2_STD_NTSC_M_JP     |\
1368 				 V4L2_STD_NTSC_M_KR)
1369 /* Secam macros */
1370 #define V4L2_STD_SECAM_DK	(V4L2_STD_SECAM_D	|\
1371 				 V4L2_STD_SECAM_K	|\
1372 				 V4L2_STD_SECAM_K1)
1373 /* All Secam Standards */
1374 #define V4L2_STD_SECAM		(V4L2_STD_SECAM_B	|\
1375 				 V4L2_STD_SECAM_G	|\
1376 				 V4L2_STD_SECAM_H	|\
1377 				 V4L2_STD_SECAM_DK	|\
1378 				 V4L2_STD_SECAM_L       |\
1379 				 V4L2_STD_SECAM_LC)
1380 /* PAL macros */
1381 #define V4L2_STD_PAL_BG		(V4L2_STD_PAL_B		|\
1382 				 V4L2_STD_PAL_B1	|\
1383 				 V4L2_STD_PAL_G)
1384 #define V4L2_STD_PAL_DK		(V4L2_STD_PAL_D		|\
1385 				 V4L2_STD_PAL_D1	|\
1386 				 V4L2_STD_PAL_K)
1387 /*
1388  * "Common" PAL - This macro is there to be compatible with the old
1389  * V4L1 concept of "PAL": /BGDKHI.
1390  * Several PAL standards are missing here: /M, /N and /Nc
1391  */
1392 #define V4L2_STD_PAL		(V4L2_STD_PAL_BG	|\
1393 				 V4L2_STD_PAL_DK	|\
1394 				 V4L2_STD_PAL_H		|\
1395 				 V4L2_STD_PAL_I)
1396 /* Chroma "agnostic" standards */
1397 #define V4L2_STD_B		(V4L2_STD_PAL_B		|\
1398 				 V4L2_STD_PAL_B1	|\
1399 				 V4L2_STD_SECAM_B)
1400 #define V4L2_STD_G		(V4L2_STD_PAL_G		|\
1401 				 V4L2_STD_SECAM_G)
1402 #define V4L2_STD_H		(V4L2_STD_PAL_H		|\
1403 				 V4L2_STD_SECAM_H)
1404 #define V4L2_STD_L		(V4L2_STD_SECAM_L	|\
1405 				 V4L2_STD_SECAM_LC)
1406 #define V4L2_STD_GH		(V4L2_STD_G		|\
1407 				 V4L2_STD_H)
1408 #define V4L2_STD_DK		(V4L2_STD_PAL_DK	|\
1409 				 V4L2_STD_SECAM_DK)
1410 #define V4L2_STD_BG		(V4L2_STD_B		|\
1411 				 V4L2_STD_G)
1412 #define V4L2_STD_MN		(V4L2_STD_PAL_M		|\
1413 				 V4L2_STD_PAL_N		|\
1414 				 V4L2_STD_PAL_Nc	|\
1415 				 V4L2_STD_NTSC)
1416 
1417 /* Standards where MTS/BTSC stereo could be found */
1418 #define V4L2_STD_MTS		(V4L2_STD_NTSC_M	|\
1419 				 V4L2_STD_PAL_M		|\
1420 				 V4L2_STD_PAL_N		|\
1421 				 V4L2_STD_PAL_Nc)
1422 
1423 /* Standards for Countries with 60Hz Line frequency */
1424 #define V4L2_STD_525_60		(V4L2_STD_PAL_M		|\
1425 				 V4L2_STD_PAL_60	|\
1426 				 V4L2_STD_NTSC		|\
1427 				 V4L2_STD_NTSC_443)
1428 /* Standards for Countries with 50Hz Line frequency */
1429 #define V4L2_STD_625_50		(V4L2_STD_PAL		|\
1430 				 V4L2_STD_PAL_N		|\
1431 				 V4L2_STD_PAL_Nc	|\
1432 				 V4L2_STD_SECAM)
1433 
1434 #define V4L2_STD_ATSC           (V4L2_STD_ATSC_8_VSB    |\
1435 				 V4L2_STD_ATSC_16_VSB)
1436 /* Macros with none and all analog standards */
1437 #define V4L2_STD_UNKNOWN        0
1438 #define V4L2_STD_ALL            (V4L2_STD_525_60	|\
1439 				 V4L2_STD_625_50)
1440 
1441 struct v4l2_standard {
1442 	__u32		     index;
1443 	v4l2_std_id          id;
1444 	__u8		     name[24];
1445 	struct v4l2_fract    frameperiod; /* Frames, not fields */
1446 	__u32		     framelines;
1447 	__u32		     reserved[4];
1448 };
1449 
1450 /*
1451  *	D V	B T	T I M I N G S
1452  */
1453 
1454 /** struct v4l2_bt_timings - BT.656/BT.1120 timing data
1455  * @width:	total width of the active video in pixels
1456  * @height:	total height of the active video in lines
1457  * @interlaced:	Interlaced or progressive
1458  * @polarities:	Positive or negative polarities
1459  * @pixelclock:	Pixel clock in HZ. Ex. 74.25MHz->74250000
1460  * @hfrontporch:Horizontal front porch in pixels
1461  * @hsync:	Horizontal Sync length in pixels
1462  * @hbackporch:	Horizontal back porch in pixels
1463  * @vfrontporch:Vertical front porch in lines
1464  * @vsync:	Vertical Sync length in lines
1465  * @vbackporch:	Vertical back porch in lines
1466  * @il_vfrontporch:Vertical front porch for the even field
1467  *		(aka field 2) of interlaced field formats
1468  * @il_vsync:	Vertical Sync length for the even field
1469  *		(aka field 2) of interlaced field formats
1470  * @il_vbackporch:Vertical back porch for the even field
1471  *		(aka field 2) of interlaced field formats
1472  * @standards:	Standards the timing belongs to
1473  * @flags:	Flags
1474  * @picture_aspect: The picture aspect ratio (hor/vert).
1475  * @cea861_vic:	VIC code as per the CEA-861 standard.
1476  * @hdmi_vic:	VIC code as per the HDMI standard.
1477  * @reserved:	Reserved fields, must be zeroed.
1478  *
1479  * A note regarding vertical interlaced timings: height refers to the total
1480  * height of the active video frame (= two fields). The blanking timings refer
1481  * to the blanking of each field. So the height of the total frame is
1482  * calculated as follows:
1483  *
1484  * tot_height = height + vfrontporch + vsync + vbackporch +
1485  *                       il_vfrontporch + il_vsync + il_vbackporch
1486  *
1487  * The active height of each field is height / 2.
1488  */
1489 struct v4l2_bt_timings {
1490 	__u32	width;
1491 	__u32	height;
1492 	__u32	interlaced;
1493 	__u32	polarities;
1494 	__u64	pixelclock;
1495 	__u32	hfrontporch;
1496 	__u32	hsync;
1497 	__u32	hbackporch;
1498 	__u32	vfrontporch;
1499 	__u32	vsync;
1500 	__u32	vbackporch;
1501 	__u32	il_vfrontporch;
1502 	__u32	il_vsync;
1503 	__u32	il_vbackporch;
1504 	__u32	standards;
1505 	__u32	flags;
1506 	struct v4l2_fract picture_aspect;
1507 	__u8	cea861_vic;
1508 	__u8	hdmi_vic;
1509 	__u8	reserved[46];
1510 } __attribute__ ((packed));
1511 
1512 /* Interlaced or progressive format */
1513 #define	V4L2_DV_PROGRESSIVE	0
1514 #define	V4L2_DV_INTERLACED	1
1515 
1516 /* Polarities. If bit is not set, it is assumed to be negative polarity */
1517 #define V4L2_DV_VSYNC_POS_POL	0x00000001
1518 #define V4L2_DV_HSYNC_POS_POL	0x00000002
1519 
1520 /* Timings standards */
1521 #define V4L2_DV_BT_STD_CEA861	(1 << 0)  /* CEA-861 Digital TV Profile */
1522 #define V4L2_DV_BT_STD_DMT	(1 << 1)  /* VESA Discrete Monitor Timings */
1523 #define V4L2_DV_BT_STD_CVT	(1 << 2)  /* VESA Coordinated Video Timings */
1524 #define V4L2_DV_BT_STD_GTF	(1 << 3)  /* VESA Generalized Timings Formula */
1525 #define V4L2_DV_BT_STD_SDI	(1 << 4)  /* SDI Timings */
1526 
1527 /* Flags */
1528 
1529 /*
1530  * CVT/GTF specific: timing uses reduced blanking (CVT) or the 'Secondary
1531  * GTF' curve (GTF). In both cases the horizontal and/or vertical blanking
1532  * intervals are reduced, allowing a higher resolution over the same
1533  * bandwidth. This is a read-only flag.
1534  */
1535 #define V4L2_DV_FL_REDUCED_BLANKING		(1 << 0)
1536 /*
1537  * CEA-861 specific: set for CEA-861 formats with a framerate of a multiple
1538  * of six. These formats can be optionally played at 1 / 1.001 speed.
1539  * This is a read-only flag.
1540  */
1541 #define V4L2_DV_FL_CAN_REDUCE_FPS		(1 << 1)
1542 /*
1543  * CEA-861 specific: only valid for video transmitters, the flag is cleared
1544  * by receivers.
1545  * If the framerate of the format is a multiple of six, then the pixelclock
1546  * used to set up the transmitter is divided by 1.001 to make it compatible
1547  * with 60 Hz based standards such as NTSC and PAL-M that use a framerate of
1548  * 29.97 Hz. Otherwise this flag is cleared. If the transmitter can't generate
1549  * such frequencies, then the flag will also be cleared.
1550  */
1551 #define V4L2_DV_FL_REDUCED_FPS			(1 << 2)
1552 /*
1553  * Specific to interlaced formats: if set, then field 1 is really one half-line
1554  * longer and field 2 is really one half-line shorter, so each field has
1555  * exactly the same number of half-lines. Whether half-lines can be detected
1556  * or used depends on the hardware.
1557  */
1558 #define V4L2_DV_FL_HALF_LINE			(1 << 3)
1559 /*
1560  * If set, then this is a Consumer Electronics (CE) video format. Such formats
1561  * differ from other formats (commonly called IT formats) in that if RGB
1562  * encoding is used then by default the RGB values use limited range (i.e.
1563  * use the range 16-235) as opposed to 0-255. All formats defined in CEA-861
1564  * except for the 640x480 format are CE formats.
1565  */
1566 #define V4L2_DV_FL_IS_CE_VIDEO			(1 << 4)
1567 /* Some formats like SMPTE-125M have an interlaced signal with a odd
1568  * total height. For these formats, if this flag is set, the first
1569  * field has the extra line. If not, it is the second field.
1570  */
1571 #define V4L2_DV_FL_FIRST_FIELD_EXTRA_LINE	(1 << 5)
1572 /*
1573  * If set, then the picture_aspect field is valid. Otherwise assume that the
1574  * pixels are square, so the picture aspect ratio is the same as the width to
1575  * height ratio.
1576  */
1577 #define V4L2_DV_FL_HAS_PICTURE_ASPECT		(1 << 6)
1578 /*
1579  * If set, then the cea861_vic field is valid and contains the Video
1580  * Identification Code as per the CEA-861 standard.
1581  */
1582 #define V4L2_DV_FL_HAS_CEA861_VIC		(1 << 7)
1583 /*
1584  * If set, then the hdmi_vic field is valid and contains the Video
1585  * Identification Code as per the HDMI standard (HDMI Vendor Specific
1586  * InfoFrame).
1587  */
1588 #define V4L2_DV_FL_HAS_HDMI_VIC			(1 << 8)
1589 /*
1590  * CEA-861 specific: only valid for video receivers.
1591  * If set, then HW can detect the difference between regular FPS and
1592  * 1000/1001 FPS. Note: This flag is only valid for HDMI VIC codes with
1593  * the V4L2_DV_FL_CAN_REDUCE_FPS flag set.
1594  */
1595 #define V4L2_DV_FL_CAN_DETECT_REDUCED_FPS	(1 << 9)
1596 
1597 /* A few useful defines to calculate the total blanking and frame sizes */
1598 #define V4L2_DV_BT_BLANKING_WIDTH(bt) \
1599 	((bt)->hfrontporch + (bt)->hsync + (bt)->hbackporch)
1600 #define V4L2_DV_BT_FRAME_WIDTH(bt) \
1601 	((bt)->width + V4L2_DV_BT_BLANKING_WIDTH(bt))
1602 #define V4L2_DV_BT_BLANKING_HEIGHT(bt) \
1603 	((bt)->vfrontporch + (bt)->vsync + (bt)->vbackporch + \
1604 	 ((bt)->interlaced ? \
1605 	  ((bt)->il_vfrontporch + (bt)->il_vsync + (bt)->il_vbackporch) : 0))
1606 #define V4L2_DV_BT_FRAME_HEIGHT(bt) \
1607 	((bt)->height + V4L2_DV_BT_BLANKING_HEIGHT(bt))
1608 
1609 /** struct v4l2_dv_timings - DV timings
1610  * @type:	the type of the timings
1611  * @bt:	BT656/1120 timings
1612  */
1613 struct v4l2_dv_timings {
1614 	__u32 type;
1615 	union {
1616 		struct v4l2_bt_timings	bt;
1617 		__u32	reserved[32];
1618 	};
1619 } __attribute__ ((packed));
1620 
1621 /* Values for the type field */
1622 #define V4L2_DV_BT_656_1120	0	/* BT.656/1120 timing type */
1623 
1624 
1625 /** struct v4l2_enum_dv_timings - DV timings enumeration
1626  * @index:	enumeration index
1627  * @pad:	the pad number for which to enumerate timings (used with
1628  *		v4l-subdev nodes only)
1629  * @reserved:	must be zeroed
1630  * @timings:	the timings for the given index
1631  */
1632 struct v4l2_enum_dv_timings {
1633 	__u32 index;
1634 	__u32 pad;
1635 	__u32 reserved[2];
1636 	struct v4l2_dv_timings timings;
1637 };
1638 
1639 /** struct v4l2_bt_timings_cap - BT.656/BT.1120 timing capabilities
1640  * @min_width:		width in pixels
1641  * @max_width:		width in pixels
1642  * @min_height:		height in lines
1643  * @max_height:		height in lines
1644  * @min_pixelclock:	Pixel clock in HZ. Ex. 74.25MHz->74250000
1645  * @max_pixelclock:	Pixel clock in HZ. Ex. 74.25MHz->74250000
1646  * @standards:		Supported standards
1647  * @capabilities:	Supported capabilities
1648  * @reserved:		Must be zeroed
1649  */
1650 struct v4l2_bt_timings_cap {
1651 	__u32	min_width;
1652 	__u32	max_width;
1653 	__u32	min_height;
1654 	__u32	max_height;
1655 	__u64	min_pixelclock;
1656 	__u64	max_pixelclock;
1657 	__u32	standards;
1658 	__u32	capabilities;
1659 	__u32	reserved[16];
1660 } __attribute__ ((packed));
1661 
1662 /* Supports interlaced formats */
1663 #define V4L2_DV_BT_CAP_INTERLACED	(1 << 0)
1664 /* Supports progressive formats */
1665 #define V4L2_DV_BT_CAP_PROGRESSIVE	(1 << 1)
1666 /* Supports CVT/GTF reduced blanking */
1667 #define V4L2_DV_BT_CAP_REDUCED_BLANKING	(1 << 2)
1668 /* Supports custom formats */
1669 #define V4L2_DV_BT_CAP_CUSTOM		(1 << 3)
1670 
1671 /** struct v4l2_dv_timings_cap - DV timings capabilities
1672  * @type:	the type of the timings (same as in struct v4l2_dv_timings)
1673  * @pad:	the pad number for which to query capabilities (used with
1674  *		v4l-subdev nodes only)
1675  * @bt:		the BT656/1120 timings capabilities
1676  */
1677 struct v4l2_dv_timings_cap {
1678 	__u32 type;
1679 	__u32 pad;
1680 	__u32 reserved[2];
1681 	union {
1682 		struct v4l2_bt_timings_cap bt;
1683 		__u32 raw_data[32];
1684 	};
1685 };
1686 
1687 
1688 /*
1689  *	V I D E O   I N P U T S
1690  */
1691 struct v4l2_input {
1692 	__u32	     index;		/*  Which input */
1693 	__u8	     name[32];		/*  Label */
1694 	__u32	     type;		/*  Type of input */
1695 	__u32	     audioset;		/*  Associated audios (bitfield) */
1696 	__u32        tuner;             /*  enum v4l2_tuner_type */
1697 	v4l2_std_id  std;
1698 	__u32	     status;
1699 	__u32	     capabilities;
1700 	__u32	     reserved[3];
1701 };
1702 
1703 /*  Values for the 'type' field */
1704 #define V4L2_INPUT_TYPE_TUNER		1
1705 #define V4L2_INPUT_TYPE_CAMERA		2
1706 #define V4L2_INPUT_TYPE_TOUCH		3
1707 
1708 /* field 'status' - general */
1709 #define V4L2_IN_ST_NO_POWER    0x00000001  /* Attached device is off */
1710 #define V4L2_IN_ST_NO_SIGNAL   0x00000002
1711 #define V4L2_IN_ST_NO_COLOR    0x00000004
1712 
1713 /* field 'status' - sensor orientation */
1714 /* If sensor is mounted upside down set both bits */
1715 #define V4L2_IN_ST_HFLIP       0x00000010 /* Frames are flipped horizontally */
1716 #define V4L2_IN_ST_VFLIP       0x00000020 /* Frames are flipped vertically */
1717 
1718 /* field 'status' - analog */
1719 #define V4L2_IN_ST_NO_H_LOCK   0x00000100  /* No horizontal sync lock */
1720 #define V4L2_IN_ST_COLOR_KILL  0x00000200  /* Color killer is active */
1721 #define V4L2_IN_ST_NO_V_LOCK   0x00000400  /* No vertical sync lock */
1722 #define V4L2_IN_ST_NO_STD_LOCK 0x00000800  /* No standard format lock */
1723 
1724 /* field 'status' - digital */
1725 #define V4L2_IN_ST_NO_SYNC     0x00010000  /* No synchronization lock */
1726 #define V4L2_IN_ST_NO_EQU      0x00020000  /* No equalizer lock */
1727 #define V4L2_IN_ST_NO_CARRIER  0x00040000  /* Carrier recovery failed */
1728 
1729 /* field 'status' - VCR and set-top box */
1730 #define V4L2_IN_ST_MACROVISION 0x01000000  /* Macrovision detected */
1731 #define V4L2_IN_ST_NO_ACCESS   0x02000000  /* Conditional access denied */
1732 #define V4L2_IN_ST_VTR         0x04000000  /* VTR time constant */
1733 
1734 /* capabilities flags */
1735 #define V4L2_IN_CAP_DV_TIMINGS		0x00000002 /* Supports S_DV_TIMINGS */
1736 #define V4L2_IN_CAP_CUSTOM_TIMINGS	V4L2_IN_CAP_DV_TIMINGS /* For compatibility */
1737 #define V4L2_IN_CAP_STD			0x00000004 /* Supports S_STD */
1738 #define V4L2_IN_CAP_NATIVE_SIZE		0x00000008 /* Supports setting native size */
1739 
1740 /*
1741  *	V I D E O   O U T P U T S
1742  */
1743 struct v4l2_output {
1744 	__u32	     index;		/*  Which output */
1745 	__u8	     name[32];		/*  Label */
1746 	__u32	     type;		/*  Type of output */
1747 	__u32	     audioset;		/*  Associated audios (bitfield) */
1748 	__u32	     modulator;         /*  Associated modulator */
1749 	v4l2_std_id  std;
1750 	__u32	     capabilities;
1751 	__u32	     reserved[3];
1752 };
1753 /*  Values for the 'type' field */
1754 #define V4L2_OUTPUT_TYPE_MODULATOR		1
1755 #define V4L2_OUTPUT_TYPE_ANALOG			2
1756 #define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY	3
1757 
1758 /* capabilities flags */
1759 #define V4L2_OUT_CAP_DV_TIMINGS		0x00000002 /* Supports S_DV_TIMINGS */
1760 #define V4L2_OUT_CAP_CUSTOM_TIMINGS	V4L2_OUT_CAP_DV_TIMINGS /* For compatibility */
1761 #define V4L2_OUT_CAP_STD		0x00000004 /* Supports S_STD */
1762 #define V4L2_OUT_CAP_NATIVE_SIZE	0x00000008 /* Supports setting native size */
1763 
1764 /*
1765  *	C O N T R O L S
1766  */
1767 struct v4l2_control {
1768 	__u32		     id;
1769 	__s32		     value;
1770 };
1771 
1772 struct v4l2_ext_control {
1773 	__u32 id;
1774 	__u32 size;
1775 	__u32 reserved2[1];
1776 	union {
1777 		__s32 value;
1778 		__s64 value64;
1779 		char __user *string;
1780 		__u8 __user *p_u8;
1781 		__u16 __user *p_u16;
1782 		__u32 __user *p_u32;
1783 		struct v4l2_area __user *p_area;
1784 		struct v4l2_ctrl_h264_sps __user *p_h264_sps;
1785 		struct v4l2_ctrl_h264_pps *p_h264_pps;
1786 		struct v4l2_ctrl_h264_scaling_matrix __user *p_h264_scaling_matrix;
1787 		struct v4l2_ctrl_h264_pred_weights __user *p_h264_pred_weights;
1788 		struct v4l2_ctrl_h264_slice_params __user *p_h264_slice_params;
1789 		struct v4l2_ctrl_h264_decode_params __user *p_h264_decode_params;
1790 		struct v4l2_ctrl_fwht_params __user *p_fwht_params;
1791 		struct v4l2_ctrl_vp8_frame __user *p_vp8_frame;
1792 		struct v4l2_ctrl_mpeg2_sequence __user *p_mpeg2_sequence;
1793 		struct v4l2_ctrl_mpeg2_picture __user *p_mpeg2_picture;
1794 		struct v4l2_ctrl_mpeg2_quantisation __user *p_mpeg2_quantisation;
1795 		struct v4l2_ctrl_vp9_compressed_hdr __user *p_vp9_compressed_hdr_probs;
1796 		struct v4l2_ctrl_vp9_frame __user *p_vp9_frame;
1797 		struct v4l2_ctrl_hevc_sps __user *p_hevc_sps;
1798 		struct v4l2_ctrl_hevc_pps __user *p_hevc_pps;
1799 		struct v4l2_ctrl_hevc_slice_params __user *p_hevc_slice_params;
1800 		struct v4l2_ctrl_hevc_scaling_matrix __user *p_hevc_scaling_matrix;
1801 		struct v4l2_ctrl_hevc_decode_params __user *p_hevc_decode_params;
1802 		void __user *ptr;
1803 	};
1804 } __attribute__ ((packed));
1805 
1806 struct v4l2_ext_controls {
1807 	union {
1808 #ifndef __KERNEL__
1809 		__u32 ctrl_class;
1810 #endif
1811 		__u32 which;
1812 	};
1813 	__u32 count;
1814 	__u32 error_idx;
1815 	__s32 request_fd;
1816 	__u32 reserved[1];
1817 	struct v4l2_ext_control *controls;
1818 };
1819 
1820 #define V4L2_CTRL_ID_MASK	  (0x0fffffff)
1821 #ifndef __KERNEL__
1822 #define V4L2_CTRL_ID2CLASS(id)    ((id) & 0x0fff0000UL)
1823 #endif
1824 #define V4L2_CTRL_ID2WHICH(id)    ((id) & 0x0fff0000UL)
1825 #define V4L2_CTRL_DRIVER_PRIV(id) (((id) & 0xffff) >= 0x1000)
1826 #define V4L2_CTRL_MAX_DIMS	  (4)
1827 #define V4L2_CTRL_WHICH_CUR_VAL   0
1828 #define V4L2_CTRL_WHICH_DEF_VAL   0x0f000000
1829 #define V4L2_CTRL_WHICH_REQUEST_VAL 0x0f010000
1830 
1831 enum v4l2_ctrl_type {
1832 	V4L2_CTRL_TYPE_INTEGER	     = 1,
1833 	V4L2_CTRL_TYPE_BOOLEAN	     = 2,
1834 	V4L2_CTRL_TYPE_MENU	     = 3,
1835 	V4L2_CTRL_TYPE_BUTTON	     = 4,
1836 	V4L2_CTRL_TYPE_INTEGER64     = 5,
1837 	V4L2_CTRL_TYPE_CTRL_CLASS    = 6,
1838 	V4L2_CTRL_TYPE_STRING        = 7,
1839 	V4L2_CTRL_TYPE_BITMASK       = 8,
1840 	V4L2_CTRL_TYPE_INTEGER_MENU  = 9,
1841 
1842 	/* Compound types are >= 0x0100 */
1843 	V4L2_CTRL_COMPOUND_TYPES     = 0x0100,
1844 	V4L2_CTRL_TYPE_U8	     = 0x0100,
1845 	V4L2_CTRL_TYPE_U16	     = 0x0101,
1846 	V4L2_CTRL_TYPE_U32	     = 0x0102,
1847 	V4L2_CTRL_TYPE_AREA          = 0x0106,
1848 
1849 	V4L2_CTRL_TYPE_HDR10_CLL_INFO		= 0x0110,
1850 	V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY	= 0x0111,
1851 
1852 	V4L2_CTRL_TYPE_H264_SPS             = 0x0200,
1853 	V4L2_CTRL_TYPE_H264_PPS		    = 0x0201,
1854 	V4L2_CTRL_TYPE_H264_SCALING_MATRIX  = 0x0202,
1855 	V4L2_CTRL_TYPE_H264_SLICE_PARAMS    = 0x0203,
1856 	V4L2_CTRL_TYPE_H264_DECODE_PARAMS   = 0x0204,
1857 	V4L2_CTRL_TYPE_H264_PRED_WEIGHTS    = 0x0205,
1858 
1859 	V4L2_CTRL_TYPE_FWHT_PARAMS	    = 0x0220,
1860 
1861 	V4L2_CTRL_TYPE_VP8_FRAME            = 0x0240,
1862 
1863 	V4L2_CTRL_TYPE_MPEG2_QUANTISATION   = 0x0250,
1864 	V4L2_CTRL_TYPE_MPEG2_SEQUENCE       = 0x0251,
1865 	V4L2_CTRL_TYPE_MPEG2_PICTURE        = 0x0252,
1866 
1867 	V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR	= 0x0260,
1868 	V4L2_CTRL_TYPE_VP9_FRAME		= 0x0261,
1869 
1870 	V4L2_CTRL_TYPE_HEVC_SPS			= 0x0270,
1871 	V4L2_CTRL_TYPE_HEVC_PPS			= 0x0271,
1872 	V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS	= 0x0272,
1873 	V4L2_CTRL_TYPE_HEVC_SCALING_MATRIX	= 0x0273,
1874 	V4L2_CTRL_TYPE_HEVC_DECODE_PARAMS	= 0x0274,
1875 };
1876 
1877 /*  Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
1878 struct v4l2_queryctrl {
1879 	__u32		     id;
1880 	__u32		     type;	/* enum v4l2_ctrl_type */
1881 	__u8		     name[32];	/* Whatever */
1882 	__s32		     minimum;	/* Note signedness */
1883 	__s32		     maximum;
1884 	__s32		     step;
1885 	__s32		     default_value;
1886 	__u32                flags;
1887 	__u32		     reserved[2];
1888 };
1889 
1890 /*  Used in the VIDIOC_QUERY_EXT_CTRL ioctl for querying extended controls */
1891 struct v4l2_query_ext_ctrl {
1892 	__u32		     id;
1893 	__u32		     type;
1894 	char		     name[32];
1895 	__s64		     minimum;
1896 	__s64		     maximum;
1897 	__u64		     step;
1898 	__s64		     default_value;
1899 	__u32                flags;
1900 	__u32                elem_size;
1901 	__u32                elems;
1902 	__u32                nr_of_dims;
1903 	__u32                dims[V4L2_CTRL_MAX_DIMS];
1904 	__u32		     reserved[32];
1905 };
1906 
1907 /*  Used in the VIDIOC_QUERYMENU ioctl for querying menu items */
1908 struct v4l2_querymenu {
1909 	__u32		id;
1910 	__u32		index;
1911 	union {
1912 		__u8	name[32];	/* Whatever */
1913 		__s64	value;
1914 	};
1915 	__u32		reserved;
1916 } __attribute__ ((packed));
1917 
1918 /*  Control flags  */
1919 #define V4L2_CTRL_FLAG_DISABLED		0x0001
1920 #define V4L2_CTRL_FLAG_GRABBED		0x0002
1921 #define V4L2_CTRL_FLAG_READ_ONLY	0x0004
1922 #define V4L2_CTRL_FLAG_UPDATE		0x0008
1923 #define V4L2_CTRL_FLAG_INACTIVE		0x0010
1924 #define V4L2_CTRL_FLAG_SLIDER		0x0020
1925 #define V4L2_CTRL_FLAG_WRITE_ONLY	0x0040
1926 #define V4L2_CTRL_FLAG_VOLATILE		0x0080
1927 #define V4L2_CTRL_FLAG_HAS_PAYLOAD	0x0100
1928 #define V4L2_CTRL_FLAG_EXECUTE_ON_WRITE	0x0200
1929 #define V4L2_CTRL_FLAG_MODIFY_LAYOUT	0x0400
1930 #define V4L2_CTRL_FLAG_DYNAMIC_ARRAY	0x0800
1931 
1932 /*  Query flags, to be ORed with the control ID */
1933 #define V4L2_CTRL_FLAG_NEXT_CTRL	0x80000000
1934 #define V4L2_CTRL_FLAG_NEXT_COMPOUND	0x40000000
1935 
1936 /*  User-class control IDs defined by V4L2 */
1937 #define V4L2_CID_MAX_CTRLS		1024
1938 /*  IDs reserved for driver specific controls */
1939 #define V4L2_CID_PRIVATE_BASE		0x08000000
1940 
1941 
1942 /*
1943  *	T U N I N G
1944  */
1945 struct v4l2_tuner {
1946 	__u32                   index;
1947 	__u8			name[32];
1948 	__u32			type;	/* enum v4l2_tuner_type */
1949 	__u32			capability;
1950 	__u32			rangelow;
1951 	__u32			rangehigh;
1952 	__u32			rxsubchans;
1953 	__u32			audmode;
1954 	__s32			signal;
1955 	__s32			afc;
1956 	__u32			reserved[4];
1957 };
1958 
1959 struct v4l2_modulator {
1960 	__u32			index;
1961 	__u8			name[32];
1962 	__u32			capability;
1963 	__u32			rangelow;
1964 	__u32			rangehigh;
1965 	__u32			txsubchans;
1966 	__u32			type;	/* enum v4l2_tuner_type */
1967 	__u32			reserved[3];
1968 };
1969 
1970 /*  Flags for the 'capability' field */
1971 #define V4L2_TUNER_CAP_LOW		0x0001
1972 #define V4L2_TUNER_CAP_NORM		0x0002
1973 #define V4L2_TUNER_CAP_HWSEEK_BOUNDED	0x0004
1974 #define V4L2_TUNER_CAP_HWSEEK_WRAP	0x0008
1975 #define V4L2_TUNER_CAP_STEREO		0x0010
1976 #define V4L2_TUNER_CAP_LANG2		0x0020
1977 #define V4L2_TUNER_CAP_SAP		0x0020
1978 #define V4L2_TUNER_CAP_LANG1		0x0040
1979 #define V4L2_TUNER_CAP_RDS		0x0080
1980 #define V4L2_TUNER_CAP_RDS_BLOCK_IO	0x0100
1981 #define V4L2_TUNER_CAP_RDS_CONTROLS	0x0200
1982 #define V4L2_TUNER_CAP_FREQ_BANDS	0x0400
1983 #define V4L2_TUNER_CAP_HWSEEK_PROG_LIM	0x0800
1984 #define V4L2_TUNER_CAP_1HZ		0x1000
1985 
1986 /*  Flags for the 'rxsubchans' field */
1987 #define V4L2_TUNER_SUB_MONO		0x0001
1988 #define V4L2_TUNER_SUB_STEREO		0x0002
1989 #define V4L2_TUNER_SUB_LANG2		0x0004
1990 #define V4L2_TUNER_SUB_SAP		0x0004
1991 #define V4L2_TUNER_SUB_LANG1		0x0008
1992 #define V4L2_TUNER_SUB_RDS		0x0010
1993 
1994 /*  Values for the 'audmode' field */
1995 #define V4L2_TUNER_MODE_MONO		0x0000
1996 #define V4L2_TUNER_MODE_STEREO		0x0001
1997 #define V4L2_TUNER_MODE_LANG2		0x0002
1998 #define V4L2_TUNER_MODE_SAP		0x0002
1999 #define V4L2_TUNER_MODE_LANG1		0x0003
2000 #define V4L2_TUNER_MODE_LANG1_LANG2	0x0004
2001 
2002 struct v4l2_frequency {
2003 	__u32	tuner;
2004 	__u32	type;	/* enum v4l2_tuner_type */
2005 	__u32	frequency;
2006 	__u32	reserved[8];
2007 };
2008 
2009 #define V4L2_BAND_MODULATION_VSB	(1 << 1)
2010 #define V4L2_BAND_MODULATION_FM		(1 << 2)
2011 #define V4L2_BAND_MODULATION_AM		(1 << 3)
2012 
2013 struct v4l2_frequency_band {
2014 	__u32	tuner;
2015 	__u32	type;	/* enum v4l2_tuner_type */
2016 	__u32	index;
2017 	__u32	capability;
2018 	__u32	rangelow;
2019 	__u32	rangehigh;
2020 	__u32	modulation;
2021 	__u32	reserved[9];
2022 };
2023 
2024 struct v4l2_hw_freq_seek {
2025 	__u32	tuner;
2026 	__u32	type;	/* enum v4l2_tuner_type */
2027 	__u32	seek_upward;
2028 	__u32	wrap_around;
2029 	__u32	spacing;
2030 	__u32	rangelow;
2031 	__u32	rangehigh;
2032 	__u32	reserved[5];
2033 };
2034 
2035 /*
2036  *	R D S
2037  */
2038 
2039 struct v4l2_rds_data {
2040 	__u8	lsb;
2041 	__u8	msb;
2042 	__u8	block;
2043 } __attribute__ ((packed));
2044 
2045 #define V4L2_RDS_BLOCK_MSK	 0x7
2046 #define V4L2_RDS_BLOCK_A	 0
2047 #define V4L2_RDS_BLOCK_B	 1
2048 #define V4L2_RDS_BLOCK_C	 2
2049 #define V4L2_RDS_BLOCK_D	 3
2050 #define V4L2_RDS_BLOCK_C_ALT	 4
2051 #define V4L2_RDS_BLOCK_INVALID	 7
2052 
2053 #define V4L2_RDS_BLOCK_CORRECTED 0x40
2054 #define V4L2_RDS_BLOCK_ERROR	 0x80
2055 
2056 /*
2057  *	A U D I O
2058  */
2059 struct v4l2_audio {
2060 	__u32	index;
2061 	__u8	name[32];
2062 	__u32	capability;
2063 	__u32	mode;
2064 	__u32	reserved[2];
2065 };
2066 
2067 /*  Flags for the 'capability' field */
2068 #define V4L2_AUDCAP_STEREO		0x00001
2069 #define V4L2_AUDCAP_AVL			0x00002
2070 
2071 /*  Flags for the 'mode' field */
2072 #define V4L2_AUDMODE_AVL		0x00001
2073 
2074 struct v4l2_audioout {
2075 	__u32	index;
2076 	__u8	name[32];
2077 	__u32	capability;
2078 	__u32	mode;
2079 	__u32	reserved[2];
2080 };
2081 
2082 /*
2083  *	M P E G   S E R V I C E S
2084  */
2085 #if 1
2086 #define V4L2_ENC_IDX_FRAME_I    (0)
2087 #define V4L2_ENC_IDX_FRAME_P    (1)
2088 #define V4L2_ENC_IDX_FRAME_B    (2)
2089 #define V4L2_ENC_IDX_FRAME_MASK (0xf)
2090 
2091 struct v4l2_enc_idx_entry {
2092 	__u64 offset;
2093 	__u64 pts;
2094 	__u32 length;
2095 	__u32 flags;
2096 	__u32 reserved[2];
2097 };
2098 
2099 #define V4L2_ENC_IDX_ENTRIES (64)
2100 struct v4l2_enc_idx {
2101 	__u32 entries;
2102 	__u32 entries_cap;
2103 	__u32 reserved[4];
2104 	struct v4l2_enc_idx_entry entry[V4L2_ENC_IDX_ENTRIES];
2105 };
2106 
2107 
2108 #define V4L2_ENC_CMD_START      (0)
2109 #define V4L2_ENC_CMD_STOP       (1)
2110 #define V4L2_ENC_CMD_PAUSE      (2)
2111 #define V4L2_ENC_CMD_RESUME     (3)
2112 
2113 /* Flags for V4L2_ENC_CMD_STOP */
2114 #define V4L2_ENC_CMD_STOP_AT_GOP_END    (1 << 0)
2115 
2116 struct v4l2_encoder_cmd {
2117 	__u32 cmd;
2118 	__u32 flags;
2119 	union {
2120 		struct {
2121 			__u32 data[8];
2122 		} raw;
2123 	};
2124 };
2125 
2126 /* Decoder commands */
2127 #define V4L2_DEC_CMD_START       (0)
2128 #define V4L2_DEC_CMD_STOP        (1)
2129 #define V4L2_DEC_CMD_PAUSE       (2)
2130 #define V4L2_DEC_CMD_RESUME      (3)
2131 #define V4L2_DEC_CMD_FLUSH       (4)
2132 
2133 /* Flags for V4L2_DEC_CMD_START */
2134 #define V4L2_DEC_CMD_START_MUTE_AUDIO	(1 << 0)
2135 
2136 /* Flags for V4L2_DEC_CMD_PAUSE */
2137 #define V4L2_DEC_CMD_PAUSE_TO_BLACK	(1 << 0)
2138 
2139 /* Flags for V4L2_DEC_CMD_STOP */
2140 #define V4L2_DEC_CMD_STOP_TO_BLACK	(1 << 0)
2141 #define V4L2_DEC_CMD_STOP_IMMEDIATELY	(1 << 1)
2142 
2143 /* Play format requirements (returned by the driver): */
2144 
2145 /* The decoder has no special format requirements */
2146 #define V4L2_DEC_START_FMT_NONE		(0)
2147 /* The decoder requires full GOPs */
2148 #define V4L2_DEC_START_FMT_GOP		(1)
2149 
2150 /* The structure must be zeroed before use by the application
2151    This ensures it can be extended safely in the future. */
2152 struct v4l2_decoder_cmd {
2153 	__u32 cmd;
2154 	__u32 flags;
2155 	union {
2156 		struct {
2157 			__u64 pts;
2158 		} stop;
2159 
2160 		struct {
2161 			/* 0 or 1000 specifies normal speed,
2162 			   1 specifies forward single stepping,
2163 			   -1 specifies backward single stepping,
2164 			   >1: playback at speed/1000 of the normal speed,
2165 			   <-1: reverse playback at (-speed/1000) of the normal speed. */
2166 			__s32 speed;
2167 			__u32 format;
2168 		} start;
2169 
2170 		struct {
2171 			__u32 data[16];
2172 		} raw;
2173 	};
2174 };
2175 #endif
2176 
2177 
2178 /*
2179  *	D A T A   S E R V I C E S   ( V B I )
2180  *
2181  *	Data services API by Michael Schimek
2182  */
2183 
2184 /* Raw VBI */
2185 struct v4l2_vbi_format {
2186 	__u32	sampling_rate;		/* in 1 Hz */
2187 	__u32	offset;
2188 	__u32	samples_per_line;
2189 	__u32	sample_format;		/* V4L2_PIX_FMT_* */
2190 	__s32	start[2];
2191 	__u32	count[2];
2192 	__u32	flags;			/* V4L2_VBI_* */
2193 	__u32	reserved[2];		/* must be zero */
2194 };
2195 
2196 /*  VBI flags  */
2197 #define V4L2_VBI_UNSYNC		(1 << 0)
2198 #define V4L2_VBI_INTERLACED	(1 << 1)
2199 
2200 /* ITU-R start lines for each field */
2201 #define V4L2_VBI_ITU_525_F1_START (1)
2202 #define V4L2_VBI_ITU_525_F2_START (264)
2203 #define V4L2_VBI_ITU_625_F1_START (1)
2204 #define V4L2_VBI_ITU_625_F2_START (314)
2205 
2206 /* Sliced VBI
2207  *
2208  *    This implements is a proposal V4L2 API to allow SLICED VBI
2209  * required for some hardware encoders. It should change without
2210  * notice in the definitive implementation.
2211  */
2212 
2213 struct v4l2_sliced_vbi_format {
2214 	__u16   service_set;
2215 	/* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
2216 	   service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
2217 				 (equals frame lines 313-336 for 625 line video
2218 				  standards, 263-286 for 525 line standards) */
2219 	__u16   service_lines[2][24];
2220 	__u32   io_size;
2221 	__u32   reserved[2];            /* must be zero */
2222 };
2223 
2224 /* Teletext World System Teletext
2225    (WST), defined on ITU-R BT.653-2 */
2226 #define V4L2_SLICED_TELETEXT_B          (0x0001)
2227 /* Video Program System, defined on ETS 300 231*/
2228 #define V4L2_SLICED_VPS                 (0x0400)
2229 /* Closed Caption, defined on EIA-608 */
2230 #define V4L2_SLICED_CAPTION_525         (0x1000)
2231 /* Wide Screen System, defined on ITU-R BT1119.1 */
2232 #define V4L2_SLICED_WSS_625             (0x4000)
2233 
2234 #define V4L2_SLICED_VBI_525             (V4L2_SLICED_CAPTION_525)
2235 #define V4L2_SLICED_VBI_625             (V4L2_SLICED_TELETEXT_B | V4L2_SLICED_VPS | V4L2_SLICED_WSS_625)
2236 
2237 struct v4l2_sliced_vbi_cap {
2238 	__u16   service_set;
2239 	/* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
2240 	   service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
2241 				 (equals frame lines 313-336 for 625 line video
2242 				  standards, 263-286 for 525 line standards) */
2243 	__u16   service_lines[2][24];
2244 	__u32	type;		/* enum v4l2_buf_type */
2245 	__u32   reserved[3];    /* must be 0 */
2246 };
2247 
2248 struct v4l2_sliced_vbi_data {
2249 	__u32   id;
2250 	__u32   field;          /* 0: first field, 1: second field */
2251 	__u32   line;           /* 1-23 */
2252 	__u32   reserved;       /* must be 0 */
2253 	__u8    data[48];
2254 };
2255 
2256 /*
2257  * Sliced VBI data inserted into MPEG Streams
2258  */
2259 
2260 /*
2261  * V4L2_MPEG_STREAM_VBI_FMT_IVTV:
2262  *
2263  * Structure of payload contained in an MPEG 2 Private Stream 1 PES Packet in an
2264  * MPEG-2 Program Pack that contains V4L2_MPEG_STREAM_VBI_FMT_IVTV Sliced VBI
2265  * data
2266  *
2267  * Note, the MPEG-2 Program Pack and Private Stream 1 PES packet header
2268  * definitions are not included here.  See the MPEG-2 specifications for details
2269  * on these headers.
2270  */
2271 
2272 /* Line type IDs */
2273 #define V4L2_MPEG_VBI_IVTV_TELETEXT_B     (1)
2274 #define V4L2_MPEG_VBI_IVTV_CAPTION_525    (4)
2275 #define V4L2_MPEG_VBI_IVTV_WSS_625        (5)
2276 #define V4L2_MPEG_VBI_IVTV_VPS            (7)
2277 
2278 struct v4l2_mpeg_vbi_itv0_line {
2279 	__u8 id;	/* One of V4L2_MPEG_VBI_IVTV_* above */
2280 	__u8 data[42];	/* Sliced VBI data for the line */
2281 } __attribute__ ((packed));
2282 
2283 struct v4l2_mpeg_vbi_itv0 {
2284 	__le32 linemask[2]; /* Bitmasks of VBI service lines present */
2285 	struct v4l2_mpeg_vbi_itv0_line line[35];
2286 } __attribute__ ((packed));
2287 
2288 struct v4l2_mpeg_vbi_ITV0 {
2289 	struct v4l2_mpeg_vbi_itv0_line line[36];
2290 } __attribute__ ((packed));
2291 
2292 #define V4L2_MPEG_VBI_IVTV_MAGIC0	"itv0"
2293 #define V4L2_MPEG_VBI_IVTV_MAGIC1	"ITV0"
2294 
2295 struct v4l2_mpeg_vbi_fmt_ivtv {
2296 	__u8 magic[4];
2297 	union {
2298 		struct v4l2_mpeg_vbi_itv0 itv0;
2299 		struct v4l2_mpeg_vbi_ITV0 ITV0;
2300 	};
2301 } __attribute__ ((packed));
2302 
2303 /*
2304  *	A G G R E G A T E   S T R U C T U R E S
2305  */
2306 
2307 /**
2308  * struct v4l2_plane_pix_format - additional, per-plane format definition
2309  * @sizeimage:		maximum size in bytes required for data, for which
2310  *			this plane will be used
2311  * @bytesperline:	distance in bytes between the leftmost pixels in two
2312  *			adjacent lines
2313  * @reserved:		drivers and applications must zero this array
2314  */
2315 struct v4l2_plane_pix_format {
2316 	__u32		sizeimage;
2317 	__u32		bytesperline;
2318 	__u16		reserved[6];
2319 } __attribute__ ((packed));
2320 
2321 /**
2322  * struct v4l2_pix_format_mplane - multiplanar format definition
2323  * @width:		image width in pixels
2324  * @height:		image height in pixels
2325  * @pixelformat:	little endian four character code (fourcc)
2326  * @field:		enum v4l2_field; field order (for interlaced video)
2327  * @colorspace:		enum v4l2_colorspace; supplemental to pixelformat
2328  * @plane_fmt:		per-plane information
2329  * @num_planes:		number of planes for this format
2330  * @flags:		format flags (V4L2_PIX_FMT_FLAG_*)
2331  * @ycbcr_enc:		enum v4l2_ycbcr_encoding, Y'CbCr encoding
2332  * @hsv_enc:		enum v4l2_hsv_encoding, HSV encoding
2333  * @quantization:	enum v4l2_quantization, colorspace quantization
2334  * @xfer_func:		enum v4l2_xfer_func, colorspace transfer function
2335  * @reserved:		drivers and applications must zero this array
2336  */
2337 struct v4l2_pix_format_mplane {
2338 	__u32				width;
2339 	__u32				height;
2340 	__u32				pixelformat;
2341 	__u32				field;
2342 	__u32				colorspace;
2343 
2344 	struct v4l2_plane_pix_format	plane_fmt[VIDEO_MAX_PLANES];
2345 	__u8				num_planes;
2346 	__u8				flags;
2347 	 union {
2348 		__u8				ycbcr_enc;
2349 		__u8				hsv_enc;
2350 	};
2351 	__u8				quantization;
2352 	__u8				xfer_func;
2353 	__u8				reserved[7];
2354 } __attribute__ ((packed));
2355 
2356 /**
2357  * struct v4l2_sdr_format - SDR format definition
2358  * @pixelformat:	little endian four character code (fourcc)
2359  * @buffersize:		maximum size in bytes required for data
2360  * @reserved:		drivers and applications must zero this array
2361  */
2362 struct v4l2_sdr_format {
2363 	__u32				pixelformat;
2364 	__u32				buffersize;
2365 	__u8				reserved[24];
2366 } __attribute__ ((packed));
2367 
2368 /**
2369  * struct v4l2_meta_format - metadata format definition
2370  * @dataformat:		little endian four character code (fourcc)
2371  * @buffersize:		maximum size in bytes required for data
2372  */
2373 struct v4l2_meta_format {
2374 	__u32				dataformat;
2375 	__u32				buffersize;
2376 } __attribute__ ((packed));
2377 
2378 /**
2379  * struct v4l2_format - stream data format
2380  * @type:	enum v4l2_buf_type; type of the data stream
2381  * @pix:	definition of an image format
2382  * @pix_mp:	definition of a multiplanar image format
2383  * @win:	definition of an overlaid image
2384  * @vbi:	raw VBI capture or output parameters
2385  * @sliced:	sliced VBI capture or output parameters
2386  * @raw_data:	placeholder for future extensions and custom formats
2387  * @fmt:	union of @pix, @pix_mp, @win, @vbi, @sliced, @sdr, @meta
2388  *		and @raw_data
2389  */
2390 struct v4l2_format {
2391 	__u32	 type;
2392 	union {
2393 		struct v4l2_pix_format		pix;     /* V4L2_BUF_TYPE_VIDEO_CAPTURE */
2394 		struct v4l2_pix_format_mplane	pix_mp;  /* V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE */
2395 		struct v4l2_window		win;     /* V4L2_BUF_TYPE_VIDEO_OVERLAY */
2396 		struct v4l2_vbi_format		vbi;     /* V4L2_BUF_TYPE_VBI_CAPTURE */
2397 		struct v4l2_sliced_vbi_format	sliced;  /* V4L2_BUF_TYPE_SLICED_VBI_CAPTURE */
2398 		struct v4l2_sdr_format		sdr;     /* V4L2_BUF_TYPE_SDR_CAPTURE */
2399 		struct v4l2_meta_format		meta;    /* V4L2_BUF_TYPE_META_CAPTURE */
2400 		__u8	raw_data[200];                   /* user-defined */
2401 	} fmt;
2402 };
2403 
2404 /*	Stream type-dependent parameters
2405  */
2406 struct v4l2_streamparm {
2407 	__u32	 type;			/* enum v4l2_buf_type */
2408 	union {
2409 		struct v4l2_captureparm	capture;
2410 		struct v4l2_outputparm	output;
2411 		__u8	raw_data[200];  /* user-defined */
2412 	} parm;
2413 };
2414 
2415 /*
2416  *	E V E N T S
2417  */
2418 
2419 #define V4L2_EVENT_ALL				0
2420 #define V4L2_EVENT_VSYNC			1
2421 #define V4L2_EVENT_EOS				2
2422 #define V4L2_EVENT_CTRL				3
2423 #define V4L2_EVENT_FRAME_SYNC			4
2424 #define V4L2_EVENT_SOURCE_CHANGE		5
2425 #define V4L2_EVENT_MOTION_DET			6
2426 #define V4L2_EVENT_PRIVATE_START		0x08000000
2427 
2428 /* Payload for V4L2_EVENT_VSYNC */
2429 struct v4l2_event_vsync {
2430 	/* Can be V4L2_FIELD_ANY, _NONE, _TOP or _BOTTOM */
2431 	__u8 field;
2432 } __attribute__ ((packed));
2433 
2434 /* Payload for V4L2_EVENT_CTRL */
2435 #define V4L2_EVENT_CTRL_CH_VALUE		(1 << 0)
2436 #define V4L2_EVENT_CTRL_CH_FLAGS		(1 << 1)
2437 #define V4L2_EVENT_CTRL_CH_RANGE		(1 << 2)
2438 #define V4L2_EVENT_CTRL_CH_DIMENSIONS		(1 << 3)
2439 
2440 struct v4l2_event_ctrl {
2441 	__u32 changes;
2442 	__u32 type;
2443 	union {
2444 		__s32 value;
2445 		__s64 value64;
2446 	};
2447 	__u32 flags;
2448 	__s32 minimum;
2449 	__s32 maximum;
2450 	__s32 step;
2451 	__s32 default_value;
2452 };
2453 
2454 struct v4l2_event_frame_sync {
2455 	__u32 frame_sequence;
2456 };
2457 
2458 #define V4L2_EVENT_SRC_CH_RESOLUTION		(1 << 0)
2459 
2460 struct v4l2_event_src_change {
2461 	__u32 changes;
2462 };
2463 
2464 #define V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ	(1 << 0)
2465 
2466 /**
2467  * struct v4l2_event_motion_det - motion detection event
2468  * @flags:             if V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ is set, then the
2469  *                     frame_sequence field is valid.
2470  * @frame_sequence:    the frame sequence number associated with this event.
2471  * @region_mask:       which regions detected motion.
2472  */
2473 struct v4l2_event_motion_det {
2474 	__u32 flags;
2475 	__u32 frame_sequence;
2476 	__u32 region_mask;
2477 };
2478 
2479 struct v4l2_event {
2480 	__u32				type;
2481 	union {
2482 		struct v4l2_event_vsync		vsync;
2483 		struct v4l2_event_ctrl		ctrl;
2484 		struct v4l2_event_frame_sync	frame_sync;
2485 		struct v4l2_event_src_change	src_change;
2486 		struct v4l2_event_motion_det	motion_det;
2487 		__u8				data[64];
2488 	} u;
2489 	__u32				pending;
2490 	__u32				sequence;
2491 #ifdef __KERNEL__
2492 	struct __kernel_timespec	timestamp;
2493 #else
2494 	struct timespec			timestamp;
2495 #endif
2496 	__u32				id;
2497 	__u32				reserved[8];
2498 };
2499 
2500 #define V4L2_EVENT_SUB_FL_SEND_INITIAL		(1 << 0)
2501 #define V4L2_EVENT_SUB_FL_ALLOW_FEEDBACK	(1 << 1)
2502 
2503 struct v4l2_event_subscription {
2504 	__u32				type;
2505 	__u32				id;
2506 	__u32				flags;
2507 	__u32				reserved[5];
2508 };
2509 
2510 /*
2511  *	A D V A N C E D   D E B U G G I N G
2512  *
2513  *	NOTE: EXPERIMENTAL API, NEVER RELY ON THIS IN APPLICATIONS!
2514  *	FOR DEBUGGING, TESTING AND INTERNAL USE ONLY!
2515  */
2516 
2517 /* VIDIOC_DBG_G_REGISTER and VIDIOC_DBG_S_REGISTER */
2518 
2519 #define V4L2_CHIP_MATCH_BRIDGE      0  /* Match against chip ID on the bridge (0 for the bridge) */
2520 #define V4L2_CHIP_MATCH_SUBDEV      4  /* Match against subdev index */
2521 
2522 /* The following four defines are no longer in use */
2523 #define V4L2_CHIP_MATCH_HOST V4L2_CHIP_MATCH_BRIDGE
2524 #define V4L2_CHIP_MATCH_I2C_DRIVER  1  /* Match against I2C driver name */
2525 #define V4L2_CHIP_MATCH_I2C_ADDR    2  /* Match against I2C 7-bit address */
2526 #define V4L2_CHIP_MATCH_AC97        3  /* Match against ancillary AC97 chip */
2527 
2528 struct v4l2_dbg_match {
2529 	__u32 type; /* Match type */
2530 	union {     /* Match this chip, meaning determined by type */
2531 		__u32 addr;
2532 		char name[32];
2533 	};
2534 } __attribute__ ((packed));
2535 
2536 struct v4l2_dbg_register {
2537 	struct v4l2_dbg_match match;
2538 	__u32 size;	/* register size in bytes */
2539 	__u64 reg;
2540 	__u64 val;
2541 } __attribute__ ((packed));
2542 
2543 #define V4L2_CHIP_FL_READABLE (1 << 0)
2544 #define V4L2_CHIP_FL_WRITABLE (1 << 1)
2545 
2546 /* VIDIOC_DBG_G_CHIP_INFO */
2547 struct v4l2_dbg_chip_info {
2548 	struct v4l2_dbg_match match;
2549 	char name[32];
2550 	__u32 flags;
2551 	__u32 reserved[32];
2552 } __attribute__ ((packed));
2553 
2554 /**
2555  * struct v4l2_create_buffers - VIDIOC_CREATE_BUFS argument
2556  * @index:	on return, index of the first created buffer
2557  * @count:	entry: number of requested buffers,
2558  *		return: number of created buffers
2559  * @memory:	enum v4l2_memory; buffer memory type
2560  * @format:	frame format, for which buffers are requested
2561  * @capabilities: capabilities of this buffer type.
2562  * @flags:	additional buffer management attributes (ignored unless the
2563  *		queue has V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS capability
2564  *		and configured for MMAP streaming I/O).
2565  * @reserved:	future extensions
2566  */
2567 struct v4l2_create_buffers {
2568 	__u32			index;
2569 	__u32			count;
2570 	__u32			memory;
2571 	struct v4l2_format	format;
2572 	__u32			capabilities;
2573 	__u32			flags;
2574 	__u32			reserved[6];
2575 };
2576 
2577 /*
2578  *	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
2579  *
2580  */
2581 #define VIDIOC_QUERYCAP		 _IOR('V',  0, struct v4l2_capability)
2582 #define VIDIOC_ENUM_FMT         _IOWR('V',  2, struct v4l2_fmtdesc)
2583 #define VIDIOC_G_FMT		_IOWR('V',  4, struct v4l2_format)
2584 #define VIDIOC_S_FMT		_IOWR('V',  5, struct v4l2_format)
2585 #define VIDIOC_REQBUFS		_IOWR('V',  8, struct v4l2_requestbuffers)
2586 #define VIDIOC_QUERYBUF		_IOWR('V',  9, struct v4l2_buffer)
2587 #define VIDIOC_G_FBUF		 _IOR('V', 10, struct v4l2_framebuffer)
2588 #define VIDIOC_S_FBUF		 _IOW('V', 11, struct v4l2_framebuffer)
2589 #define VIDIOC_OVERLAY		 _IOW('V', 14, int)
2590 #define VIDIOC_QBUF		_IOWR('V', 15, struct v4l2_buffer)
2591 #define VIDIOC_EXPBUF		_IOWR('V', 16, struct v4l2_exportbuffer)
2592 #define VIDIOC_DQBUF		_IOWR('V', 17, struct v4l2_buffer)
2593 #define VIDIOC_STREAMON		 _IOW('V', 18, int)
2594 #define VIDIOC_STREAMOFF	 _IOW('V', 19, int)
2595 #define VIDIOC_G_PARM		_IOWR('V', 21, struct v4l2_streamparm)
2596 #define VIDIOC_S_PARM		_IOWR('V', 22, struct v4l2_streamparm)
2597 #define VIDIOC_G_STD		 _IOR('V', 23, v4l2_std_id)
2598 #define VIDIOC_S_STD		 _IOW('V', 24, v4l2_std_id)
2599 #define VIDIOC_ENUMSTD		_IOWR('V', 25, struct v4l2_standard)
2600 #define VIDIOC_ENUMINPUT	_IOWR('V', 26, struct v4l2_input)
2601 #define VIDIOC_G_CTRL		_IOWR('V', 27, struct v4l2_control)
2602 #define VIDIOC_S_CTRL		_IOWR('V', 28, struct v4l2_control)
2603 #define VIDIOC_G_TUNER		_IOWR('V', 29, struct v4l2_tuner)
2604 #define VIDIOC_S_TUNER		 _IOW('V', 30, struct v4l2_tuner)
2605 #define VIDIOC_G_AUDIO		 _IOR('V', 33, struct v4l2_audio)
2606 #define VIDIOC_S_AUDIO		 _IOW('V', 34, struct v4l2_audio)
2607 #define VIDIOC_QUERYCTRL	_IOWR('V', 36, struct v4l2_queryctrl)
2608 #define VIDIOC_QUERYMENU	_IOWR('V', 37, struct v4l2_querymenu)
2609 #define VIDIOC_G_INPUT		 _IOR('V', 38, int)
2610 #define VIDIOC_S_INPUT		_IOWR('V', 39, int)
2611 #define VIDIOC_G_EDID		_IOWR('V', 40, struct v4l2_edid)
2612 #define VIDIOC_S_EDID		_IOWR('V', 41, struct v4l2_edid)
2613 #define VIDIOC_G_OUTPUT		 _IOR('V', 46, int)
2614 #define VIDIOC_S_OUTPUT		_IOWR('V', 47, int)
2615 #define VIDIOC_ENUMOUTPUT	_IOWR('V', 48, struct v4l2_output)
2616 #define VIDIOC_G_AUDOUT		 _IOR('V', 49, struct v4l2_audioout)
2617 #define VIDIOC_S_AUDOUT		 _IOW('V', 50, struct v4l2_audioout)
2618 #define VIDIOC_G_MODULATOR	_IOWR('V', 54, struct v4l2_modulator)
2619 #define VIDIOC_S_MODULATOR	 _IOW('V', 55, struct v4l2_modulator)
2620 #define VIDIOC_G_FREQUENCY	_IOWR('V', 56, struct v4l2_frequency)
2621 #define VIDIOC_S_FREQUENCY	 _IOW('V', 57, struct v4l2_frequency)
2622 #define VIDIOC_CROPCAP		_IOWR('V', 58, struct v4l2_cropcap)
2623 #define VIDIOC_G_CROP		_IOWR('V', 59, struct v4l2_crop)
2624 #define VIDIOC_S_CROP		 _IOW('V', 60, struct v4l2_crop)
2625 #define VIDIOC_G_JPEGCOMP	 _IOR('V', 61, struct v4l2_jpegcompression)
2626 #define VIDIOC_S_JPEGCOMP	 _IOW('V', 62, struct v4l2_jpegcompression)
2627 #define VIDIOC_QUERYSTD		 _IOR('V', 63, v4l2_std_id)
2628 #define VIDIOC_TRY_FMT		_IOWR('V', 64, struct v4l2_format)
2629 #define VIDIOC_ENUMAUDIO	_IOWR('V', 65, struct v4l2_audio)
2630 #define VIDIOC_ENUMAUDOUT	_IOWR('V', 66, struct v4l2_audioout)
2631 #define VIDIOC_G_PRIORITY	 _IOR('V', 67, __u32) /* enum v4l2_priority */
2632 #define VIDIOC_S_PRIORITY	 _IOW('V', 68, __u32) /* enum v4l2_priority */
2633 #define VIDIOC_G_SLICED_VBI_CAP _IOWR('V', 69, struct v4l2_sliced_vbi_cap)
2634 #define VIDIOC_LOG_STATUS         _IO('V', 70)
2635 #define VIDIOC_G_EXT_CTRLS	_IOWR('V', 71, struct v4l2_ext_controls)
2636 #define VIDIOC_S_EXT_CTRLS	_IOWR('V', 72, struct v4l2_ext_controls)
2637 #define VIDIOC_TRY_EXT_CTRLS	_IOWR('V', 73, struct v4l2_ext_controls)
2638 #define VIDIOC_ENUM_FRAMESIZES	_IOWR('V', 74, struct v4l2_frmsizeenum)
2639 #define VIDIOC_ENUM_FRAMEINTERVALS _IOWR('V', 75, struct v4l2_frmivalenum)
2640 #define VIDIOC_G_ENC_INDEX       _IOR('V', 76, struct v4l2_enc_idx)
2641 #define VIDIOC_ENCODER_CMD      _IOWR('V', 77, struct v4l2_encoder_cmd)
2642 #define VIDIOC_TRY_ENCODER_CMD  _IOWR('V', 78, struct v4l2_encoder_cmd)
2643 
2644 /*
2645  * Experimental, meant for debugging, testing and internal use.
2646  * Only implemented if CONFIG_VIDEO_ADV_DEBUG is defined.
2647  * You must be root to use these ioctls. Never use these in applications!
2648  */
2649 #define	VIDIOC_DBG_S_REGISTER	 _IOW('V', 79, struct v4l2_dbg_register)
2650 #define	VIDIOC_DBG_G_REGISTER	_IOWR('V', 80, struct v4l2_dbg_register)
2651 
2652 #define VIDIOC_S_HW_FREQ_SEEK	 _IOW('V', 82, struct v4l2_hw_freq_seek)
2653 #define	VIDIOC_S_DV_TIMINGS	_IOWR('V', 87, struct v4l2_dv_timings)
2654 #define	VIDIOC_G_DV_TIMINGS	_IOWR('V', 88, struct v4l2_dv_timings)
2655 #define	VIDIOC_DQEVENT		 _IOR('V', 89, struct v4l2_event)
2656 #define	VIDIOC_SUBSCRIBE_EVENT	 _IOW('V', 90, struct v4l2_event_subscription)
2657 #define	VIDIOC_UNSUBSCRIBE_EVENT _IOW('V', 91, struct v4l2_event_subscription)
2658 #define VIDIOC_CREATE_BUFS	_IOWR('V', 92, struct v4l2_create_buffers)
2659 #define VIDIOC_PREPARE_BUF	_IOWR('V', 93, struct v4l2_buffer)
2660 #define VIDIOC_G_SELECTION	_IOWR('V', 94, struct v4l2_selection)
2661 #define VIDIOC_S_SELECTION	_IOWR('V', 95, struct v4l2_selection)
2662 #define VIDIOC_DECODER_CMD	_IOWR('V', 96, struct v4l2_decoder_cmd)
2663 #define VIDIOC_TRY_DECODER_CMD	_IOWR('V', 97, struct v4l2_decoder_cmd)
2664 #define VIDIOC_ENUM_DV_TIMINGS  _IOWR('V', 98, struct v4l2_enum_dv_timings)
2665 #define VIDIOC_QUERY_DV_TIMINGS  _IOR('V', 99, struct v4l2_dv_timings)
2666 #define VIDIOC_DV_TIMINGS_CAP   _IOWR('V', 100, struct v4l2_dv_timings_cap)
2667 #define VIDIOC_ENUM_FREQ_BANDS	_IOWR('V', 101, struct v4l2_frequency_band)
2668 
2669 /*
2670  * Experimental, meant for debugging, testing and internal use.
2671  * Never use this in applications!
2672  */
2673 #define VIDIOC_DBG_G_CHIP_INFO  _IOWR('V', 102, struct v4l2_dbg_chip_info)
2674 
2675 #define VIDIOC_QUERY_EXT_CTRL	_IOWR('V', 103, struct v4l2_query_ext_ctrl)
2676 
2677 /* Reminder: when adding new ioctls please add support for them to
2678    drivers/media/v4l2-core/v4l2-compat-ioctl32.c as well! */
2679 
2680 #define BASE_VIDIOC_PRIVATE	192		/* 192-255 are private */
2681 
2682 /* Deprecated definitions kept for backwards compatibility */
2683 #ifndef __KERNEL__
2684 #define V4L2_PIX_FMT_HM12 V4L2_PIX_FMT_NV12_16L16
2685 #define V4L2_PIX_FMT_SUNXI_TILED_NV12 V4L2_PIX_FMT_NV12_32L32
2686 /*
2687  * This capability was never implemented, anyone using this cap should drop it
2688  * from their code.
2689  */
2690 #define V4L2_CAP_ASYNCIO 0x02000000
2691 #endif
2692 
2693 #endif /* _UAPI__LINUX_VIDEODEV2_H */
2694