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