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