xref: /linux-6.15/include/uapi/linux/videodev2.h (revision db181ce0)
1 /*
2  *  Video for Linux Two header file
3  *
4  *  Copyright (C) 1999-2012 the contributors
5  *
6  *  This program is free software; you can redistribute it and/or modify
7  *  it under the terms of the GNU General Public License as published by
8  *  the Free Software Foundation; either version 2 of the License, or
9  *  (at your option) any later version.
10  *
11  *  This program is distributed in the hope that it will be useful,
12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *  GNU General Public License for more details.
15  *
16  *  Alternatively you can redistribute this file under the terms of the
17  *  BSD license as stated below:
18  *
19  *  Redistribution and use in source and binary forms, with or without
20  *  modification, are permitted provided that the following conditions
21  *  are met:
22  *  1. Redistributions of source code must retain the above copyright
23  *     notice, this list of conditions and the following disclaimer.
24  *  2. Redistributions in binary form must reproduce the above copyright
25  *     notice, this list of conditions and the following disclaimer in
26  *     the documentation and/or other materials provided with the
27  *     distribution.
28  *  3. The names of its contributors may not be used to endorse or promote
29  *     products derived from this software without specific prior written
30  *     permission.
31  *
32  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
33  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
34  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
35  *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
36  *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
37  *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
38  *  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
39  *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
40  *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
41  *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
42  *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
43  *
44  *	Header file for v4l or V4L2 drivers and applications
45  * with public API.
46  * All kernel-specific stuff were moved to media/v4l2-dev.h, so
47  * no #if __KERNEL tests are allowed here
48  *
49  *	See http://linuxtv.org for more info
50  *
51  *	Author: Bill Dirks <[email protected]>
52  *		Justin Schoeman
53  *              Hans Verkuil <[email protected]>
54  *		et al.
55  */
56 #ifndef _UAPI__LINUX_VIDEODEV2_H
57 #define _UAPI__LINUX_VIDEODEV2_H
58 
59 #ifndef __KERNEL__
60 #include <sys/time.h>
61 #endif
62 #include <linux/compiler.h>
63 #include <linux/ioctl.h>
64 #include <linux/types.h>
65 #include <linux/v4l2-common.h>
66 #include <linux/v4l2-controls.h>
67 
68 /*
69  * Common stuff for both V4L1 and V4L2
70  * Moved from videodev.h
71  */
72 #define VIDEO_MAX_FRAME               32
73 #define VIDEO_MAX_PLANES               8
74 
75 /*
76  *	M I S C E L L A N E O U S
77  */
78 
79 /*  Four-character-code (FOURCC) */
80 #define v4l2_fourcc(a, b, c, d)\
81 	((__u32)(a) | ((__u32)(b) << 8) | ((__u32)(c) << 16) | ((__u32)(d) << 24))
82 
83 /*
84  *	E N U M S
85  */
86 enum v4l2_field {
87 	V4L2_FIELD_ANY           = 0, /* driver can choose from none,
88 					 top, bottom, interlaced
89 					 depending on whatever it thinks
90 					 is approximate ... */
91 	V4L2_FIELD_NONE          = 1, /* this device has no fields ... */
92 	V4L2_FIELD_TOP           = 2, /* top field only */
93 	V4L2_FIELD_BOTTOM        = 3, /* bottom field only */
94 	V4L2_FIELD_INTERLACED    = 4, /* both fields interlaced */
95 	V4L2_FIELD_SEQ_TB        = 5, /* both fields sequential into one
96 					 buffer, top-bottom order */
97 	V4L2_FIELD_SEQ_BT        = 6, /* same as above + bottom-top order */
98 	V4L2_FIELD_ALTERNATE     = 7, /* both fields alternating into
99 					 separate buffers */
100 	V4L2_FIELD_INTERLACED_TB = 8, /* both fields interlaced, top field
101 					 first and the top field is
102 					 transmitted first */
103 	V4L2_FIELD_INTERLACED_BT = 9, /* both fields interlaced, top field
104 					 first and the bottom field is
105 					 transmitted first */
106 };
107 #define V4L2_FIELD_HAS_TOP(field)	\
108 	((field) == V4L2_FIELD_TOP 	||\
109 	 (field) == V4L2_FIELD_INTERLACED ||\
110 	 (field) == V4L2_FIELD_INTERLACED_TB ||\
111 	 (field) == V4L2_FIELD_INTERLACED_BT ||\
112 	 (field) == V4L2_FIELD_SEQ_TB	||\
113 	 (field) == V4L2_FIELD_SEQ_BT)
114 #define V4L2_FIELD_HAS_BOTTOM(field)	\
115 	((field) == V4L2_FIELD_BOTTOM 	||\
116 	 (field) == V4L2_FIELD_INTERLACED ||\
117 	 (field) == V4L2_FIELD_INTERLACED_TB ||\
118 	 (field) == V4L2_FIELD_INTERLACED_BT ||\
119 	 (field) == V4L2_FIELD_SEQ_TB	||\
120 	 (field) == V4L2_FIELD_SEQ_BT)
121 #define V4L2_FIELD_HAS_BOTH(field)	\
122 	((field) == V4L2_FIELD_INTERLACED ||\
123 	 (field) == V4L2_FIELD_INTERLACED_TB ||\
124 	 (field) == V4L2_FIELD_INTERLACED_BT ||\
125 	 (field) == V4L2_FIELD_SEQ_TB ||\
126 	 (field) == V4L2_FIELD_SEQ_BT)
127 
128 enum v4l2_buf_type {
129 	V4L2_BUF_TYPE_VIDEO_CAPTURE        = 1,
130 	V4L2_BUF_TYPE_VIDEO_OUTPUT         = 2,
131 	V4L2_BUF_TYPE_VIDEO_OVERLAY        = 3,
132 	V4L2_BUF_TYPE_VBI_CAPTURE          = 4,
133 	V4L2_BUF_TYPE_VBI_OUTPUT           = 5,
134 	V4L2_BUF_TYPE_SLICED_VBI_CAPTURE   = 6,
135 	V4L2_BUF_TYPE_SLICED_VBI_OUTPUT    = 7,
136 #if 1
137 	/* Experimental */
138 	V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY = 8,
139 #endif
140 	V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE = 9,
141 	V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE  = 10,
142 	V4L2_BUF_TYPE_SDR_CAPTURE          = 11,
143 	/* Deprecated, do not use */
144 	V4L2_BUF_TYPE_PRIVATE              = 0x80,
145 };
146 
147 #define V4L2_TYPE_IS_MULTIPLANAR(type)			\
148 	((type) == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE	\
149 	 || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
150 
151 #define V4L2_TYPE_IS_OUTPUT(type)				\
152 	((type) == V4L2_BUF_TYPE_VIDEO_OUTPUT			\
153 	 || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE		\
154 	 || (type) == V4L2_BUF_TYPE_VIDEO_OVERLAY		\
155 	 || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY	\
156 	 || (type) == V4L2_BUF_TYPE_VBI_OUTPUT			\
157 	 || (type) == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT)
158 
159 enum v4l2_tuner_type {
160 	V4L2_TUNER_RADIO	     = 1,
161 	V4L2_TUNER_ANALOG_TV	     = 2,
162 	V4L2_TUNER_DIGITAL_TV	     = 3,
163 	V4L2_TUNER_ADC               = 4,
164 	V4L2_TUNER_RF                = 5,
165 };
166 
167 enum v4l2_memory {
168 	V4L2_MEMORY_MMAP             = 1,
169 	V4L2_MEMORY_USERPTR          = 2,
170 	V4L2_MEMORY_OVERLAY          = 3,
171 	V4L2_MEMORY_DMABUF           = 4,
172 };
173 
174 /* see also http://vektor.theorem.ca/graphics/ycbcr/ */
175 enum v4l2_colorspace {
176 	/* ITU-R 601 -- broadcast NTSC/PAL */
177 	V4L2_COLORSPACE_SMPTE170M     = 1,
178 
179 	/* 1125-Line (US) HDTV */
180 	V4L2_COLORSPACE_SMPTE240M     = 2,
181 
182 	/* HD and modern captures. */
183 	V4L2_COLORSPACE_REC709        = 3,
184 
185 	/* broken BT878 extents (601, luma range 16-253 instead of 16-235) */
186 	V4L2_COLORSPACE_BT878         = 4,
187 
188 	/* These should be useful.  Assume 601 extents. */
189 	V4L2_COLORSPACE_470_SYSTEM_M  = 5,
190 	V4L2_COLORSPACE_470_SYSTEM_BG = 6,
191 
192 	/* I know there will be cameras that send this.  So, this is
193 	 * unspecified chromaticities and full 0-255 on each of the
194 	 * Y'CbCr components
195 	 */
196 	V4L2_COLORSPACE_JPEG          = 7,
197 
198 	/* For RGB colourspaces, this is probably a good start. */
199 	V4L2_COLORSPACE_SRGB          = 8,
200 };
201 
202 enum v4l2_priority {
203 	V4L2_PRIORITY_UNSET       = 0,  /* not initialized */
204 	V4L2_PRIORITY_BACKGROUND  = 1,
205 	V4L2_PRIORITY_INTERACTIVE = 2,
206 	V4L2_PRIORITY_RECORD      = 3,
207 	V4L2_PRIORITY_DEFAULT     = V4L2_PRIORITY_INTERACTIVE,
208 };
209 
210 struct v4l2_rect {
211 	__s32   left;
212 	__s32   top;
213 	__u32   width;
214 	__u32   height;
215 };
216 
217 struct v4l2_fract {
218 	__u32   numerator;
219 	__u32   denominator;
220 };
221 
222 /**
223   * struct v4l2_capability - Describes V4L2 device caps returned by VIDIOC_QUERYCAP
224   *
225   * @driver:	   name of the driver module (e.g. "bttv")
226   * @card:	   name of the card (e.g. "Hauppauge WinTV")
227   * @bus_info:	   name of the bus (e.g. "PCI:" + pci_name(pci_dev) )
228   * @version:	   KERNEL_VERSION
229   * @capabilities: capabilities of the physical device as a whole
230   * @device_caps:  capabilities accessed via this particular device (node)
231   * @reserved:	   reserved fields for future extensions
232   */
233 struct v4l2_capability {
234 	__u8	driver[16];
235 	__u8	card[32];
236 	__u8	bus_info[32];
237 	__u32   version;
238 	__u32	capabilities;
239 	__u32	device_caps;
240 	__u32	reserved[3];
241 };
242 
243 /* Values for 'capabilities' field */
244 #define V4L2_CAP_VIDEO_CAPTURE		0x00000001  /* Is a video capture device */
245 #define V4L2_CAP_VIDEO_OUTPUT		0x00000002  /* Is a video output device */
246 #define V4L2_CAP_VIDEO_OVERLAY		0x00000004  /* Can do video overlay */
247 #define V4L2_CAP_VBI_CAPTURE		0x00000010  /* Is a raw VBI capture device */
248 #define V4L2_CAP_VBI_OUTPUT		0x00000020  /* Is a raw VBI output device */
249 #define V4L2_CAP_SLICED_VBI_CAPTURE	0x00000040  /* Is a sliced VBI capture device */
250 #define V4L2_CAP_SLICED_VBI_OUTPUT	0x00000080  /* Is a sliced VBI output device */
251 #define V4L2_CAP_RDS_CAPTURE		0x00000100  /* RDS data capture */
252 #define V4L2_CAP_VIDEO_OUTPUT_OVERLAY	0x00000200  /* Can do video output overlay */
253 #define V4L2_CAP_HW_FREQ_SEEK		0x00000400  /* Can do hardware frequency seek  */
254 #define V4L2_CAP_RDS_OUTPUT		0x00000800  /* Is an RDS encoder */
255 
256 /* Is a video capture device that supports multiplanar formats */
257 #define V4L2_CAP_VIDEO_CAPTURE_MPLANE	0x00001000
258 /* Is a video output device that supports multiplanar formats */
259 #define V4L2_CAP_VIDEO_OUTPUT_MPLANE	0x00002000
260 /* Is a video mem-to-mem device that supports multiplanar formats */
261 #define V4L2_CAP_VIDEO_M2M_MPLANE	0x00004000
262 /* Is a video mem-to-mem device */
263 #define V4L2_CAP_VIDEO_M2M		0x00008000
264 
265 #define V4L2_CAP_TUNER			0x00010000  /* has a tuner */
266 #define V4L2_CAP_AUDIO			0x00020000  /* has audio support */
267 #define V4L2_CAP_RADIO			0x00040000  /* is a radio device */
268 #define V4L2_CAP_MODULATOR		0x00080000  /* has a modulator */
269 
270 #define V4L2_CAP_SDR_CAPTURE		0x00100000  /* Is a SDR capture device */
271 
272 #define V4L2_CAP_READWRITE              0x01000000  /* read/write systemcalls */
273 #define V4L2_CAP_ASYNCIO                0x02000000  /* async I/O */
274 #define V4L2_CAP_STREAMING              0x04000000  /* streaming I/O ioctls */
275 
276 #define V4L2_CAP_DEVICE_CAPS            0x80000000  /* sets device capabilities field */
277 
278 /*
279  *	V I D E O   I M A G E   F O R M A T
280  */
281 struct v4l2_pix_format {
282 	__u32         		width;
283 	__u32			height;
284 	__u32			pixelformat;
285 	__u32			field;		/* enum v4l2_field */
286 	__u32            	bytesperline;	/* for padding, zero if unused */
287 	__u32          		sizeimage;
288 	__u32			colorspace;	/* enum v4l2_colorspace */
289 	__u32			priv;		/* private data, depends on pixelformat */
290 };
291 
292 /*      Pixel format         FOURCC                          depth  Description  */
293 
294 /* RGB formats */
295 #define V4L2_PIX_FMT_RGB332  v4l2_fourcc('R', 'G', 'B', '1') /*  8  RGB-3-3-2     */
296 #define V4L2_PIX_FMT_RGB444  v4l2_fourcc('R', '4', '4', '4') /* 16  xxxxrrrr ggggbbbb */
297 #define V4L2_PIX_FMT_RGB555  v4l2_fourcc('R', 'G', 'B', 'O') /* 16  RGB-5-5-5     */
298 #define V4L2_PIX_FMT_RGB565  v4l2_fourcc('R', 'G', 'B', 'P') /* 16  RGB-5-6-5     */
299 #define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R', 'G', 'B', 'Q') /* 16  RGB-5-5-5 BE  */
300 #define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R', 'G', 'B', 'R') /* 16  RGB-5-6-5 BE  */
301 #define V4L2_PIX_FMT_BGR666  v4l2_fourcc('B', 'G', 'R', 'H') /* 18  BGR-6-6-6	  */
302 #define V4L2_PIX_FMT_BGR24   v4l2_fourcc('B', 'G', 'R', '3') /* 24  BGR-8-8-8     */
303 #define V4L2_PIX_FMT_RGB24   v4l2_fourcc('R', 'G', 'B', '3') /* 24  RGB-8-8-8     */
304 #define V4L2_PIX_FMT_BGR32   v4l2_fourcc('B', 'G', 'R', '4') /* 32  BGR-8-8-8-8   */
305 #define V4L2_PIX_FMT_RGB32   v4l2_fourcc('R', 'G', 'B', '4') /* 32  RGB-8-8-8-8   */
306 
307 /* Grey formats */
308 #define V4L2_PIX_FMT_GREY    v4l2_fourcc('G', 'R', 'E', 'Y') /*  8  Greyscale     */
309 #define V4L2_PIX_FMT_Y4      v4l2_fourcc('Y', '0', '4', ' ') /*  4  Greyscale     */
310 #define V4L2_PIX_FMT_Y6      v4l2_fourcc('Y', '0', '6', ' ') /*  6  Greyscale     */
311 #define V4L2_PIX_FMT_Y10     v4l2_fourcc('Y', '1', '0', ' ') /* 10  Greyscale     */
312 #define V4L2_PIX_FMT_Y12     v4l2_fourcc('Y', '1', '2', ' ') /* 12  Greyscale     */
313 #define V4L2_PIX_FMT_Y16     v4l2_fourcc('Y', '1', '6', ' ') /* 16  Greyscale     */
314 
315 /* Grey bit-packed formats */
316 #define V4L2_PIX_FMT_Y10BPACK    v4l2_fourcc('Y', '1', '0', 'B') /* 10  Greyscale bit-packed */
317 
318 /* Palette formats */
319 #define V4L2_PIX_FMT_PAL8    v4l2_fourcc('P', 'A', 'L', '8') /*  8  8-bit palette */
320 
321 /* Chrominance formats */
322 #define V4L2_PIX_FMT_UV8     v4l2_fourcc('U', 'V', '8', ' ') /*  8  UV 4:4 */
323 
324 /* Luminance+Chrominance formats */
325 #define V4L2_PIX_FMT_YVU410  v4l2_fourcc('Y', 'V', 'U', '9') /*  9  YVU 4:1:0     */
326 #define V4L2_PIX_FMT_YVU420  v4l2_fourcc('Y', 'V', '1', '2') /* 12  YVU 4:2:0     */
327 #define V4L2_PIX_FMT_YUYV    v4l2_fourcc('Y', 'U', 'Y', 'V') /* 16  YUV 4:2:2     */
328 #define V4L2_PIX_FMT_YYUV    v4l2_fourcc('Y', 'Y', 'U', 'V') /* 16  YUV 4:2:2     */
329 #define V4L2_PIX_FMT_YVYU    v4l2_fourcc('Y', 'V', 'Y', 'U') /* 16 YVU 4:2:2 */
330 #define V4L2_PIX_FMT_UYVY    v4l2_fourcc('U', 'Y', 'V', 'Y') /* 16  YUV 4:2:2     */
331 #define V4L2_PIX_FMT_VYUY    v4l2_fourcc('V', 'Y', 'U', 'Y') /* 16  YUV 4:2:2     */
332 #define V4L2_PIX_FMT_YUV422P v4l2_fourcc('4', '2', '2', 'P') /* 16  YVU422 planar */
333 #define V4L2_PIX_FMT_YUV411P v4l2_fourcc('4', '1', '1', 'P') /* 16  YVU411 planar */
334 #define V4L2_PIX_FMT_Y41P    v4l2_fourcc('Y', '4', '1', 'P') /* 12  YUV 4:1:1     */
335 #define V4L2_PIX_FMT_YUV444  v4l2_fourcc('Y', '4', '4', '4') /* 16  xxxxyyyy uuuuvvvv */
336 #define V4L2_PIX_FMT_YUV555  v4l2_fourcc('Y', 'U', 'V', 'O') /* 16  YUV-5-5-5     */
337 #define V4L2_PIX_FMT_YUV565  v4l2_fourcc('Y', 'U', 'V', 'P') /* 16  YUV-5-6-5     */
338 #define V4L2_PIX_FMT_YUV32   v4l2_fourcc('Y', 'U', 'V', '4') /* 32  YUV-8-8-8-8   */
339 #define V4L2_PIX_FMT_YUV410  v4l2_fourcc('Y', 'U', 'V', '9') /*  9  YUV 4:1:0     */
340 #define V4L2_PIX_FMT_YUV420  v4l2_fourcc('Y', 'U', '1', '2') /* 12  YUV 4:2:0     */
341 #define V4L2_PIX_FMT_HI240   v4l2_fourcc('H', 'I', '2', '4') /*  8  8-bit color   */
342 #define V4L2_PIX_FMT_HM12    v4l2_fourcc('H', 'M', '1', '2') /*  8  YUV 4:2:0 16x16 macroblocks */
343 #define V4L2_PIX_FMT_M420    v4l2_fourcc('M', '4', '2', '0') /* 12  YUV 4:2:0 2 lines y, 1 line uv interleaved */
344 
345 /* two planes -- one Y, one Cr + Cb interleaved  */
346 #define V4L2_PIX_FMT_NV12    v4l2_fourcc('N', 'V', '1', '2') /* 12  Y/CbCr 4:2:0  */
347 #define V4L2_PIX_FMT_NV21    v4l2_fourcc('N', 'V', '2', '1') /* 12  Y/CrCb 4:2:0  */
348 #define V4L2_PIX_FMT_NV16    v4l2_fourcc('N', 'V', '1', '6') /* 16  Y/CbCr 4:2:2  */
349 #define V4L2_PIX_FMT_NV61    v4l2_fourcc('N', 'V', '6', '1') /* 16  Y/CrCb 4:2:2  */
350 #define V4L2_PIX_FMT_NV24    v4l2_fourcc('N', 'V', '2', '4') /* 24  Y/CbCr 4:4:4  */
351 #define V4L2_PIX_FMT_NV42    v4l2_fourcc('N', 'V', '4', '2') /* 24  Y/CrCb 4:4:4  */
352 
353 /* two non contiguous planes - one Y, one Cr + Cb interleaved  */
354 #define V4L2_PIX_FMT_NV12M   v4l2_fourcc('N', 'M', '1', '2') /* 12  Y/CbCr 4:2:0  */
355 #define V4L2_PIX_FMT_NV21M   v4l2_fourcc('N', 'M', '2', '1') /* 21  Y/CrCb 4:2:0  */
356 #define V4L2_PIX_FMT_NV16M   v4l2_fourcc('N', 'M', '1', '6') /* 16  Y/CbCr 4:2:2  */
357 #define V4L2_PIX_FMT_NV61M   v4l2_fourcc('N', 'M', '6', '1') /* 16  Y/CrCb 4:2:2  */
358 #define V4L2_PIX_FMT_NV12MT  v4l2_fourcc('T', 'M', '1', '2') /* 12  Y/CbCr 4:2:0 64x32 macroblocks */
359 #define V4L2_PIX_FMT_NV12MT_16X16 v4l2_fourcc('V', 'M', '1', '2') /* 12  Y/CbCr 4:2:0 16x16 macroblocks */
360 
361 /* three non contiguous planes - Y, Cb, Cr */
362 #define V4L2_PIX_FMT_YUV420M v4l2_fourcc('Y', 'M', '1', '2') /* 12  YUV420 planar */
363 #define V4L2_PIX_FMT_YVU420M v4l2_fourcc('Y', 'M', '2', '1') /* 12  YVU420 planar */
364 
365 /* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */
366 #define V4L2_PIX_FMT_SBGGR8  v4l2_fourcc('B', 'A', '8', '1') /*  8  BGBG.. GRGR.. */
367 #define V4L2_PIX_FMT_SGBRG8  v4l2_fourcc('G', 'B', 'R', 'G') /*  8  GBGB.. RGRG.. */
368 #define V4L2_PIX_FMT_SGRBG8  v4l2_fourcc('G', 'R', 'B', 'G') /*  8  GRGR.. BGBG.. */
369 #define V4L2_PIX_FMT_SRGGB8  v4l2_fourcc('R', 'G', 'G', 'B') /*  8  RGRG.. GBGB.. */
370 #define V4L2_PIX_FMT_SBGGR10 v4l2_fourcc('B', 'G', '1', '0') /* 10  BGBG.. GRGR.. */
371 #define V4L2_PIX_FMT_SGBRG10 v4l2_fourcc('G', 'B', '1', '0') /* 10  GBGB.. RGRG.. */
372 #define V4L2_PIX_FMT_SGRBG10 v4l2_fourcc('B', 'A', '1', '0') /* 10  GRGR.. BGBG.. */
373 #define V4L2_PIX_FMT_SRGGB10 v4l2_fourcc('R', 'G', '1', '0') /* 10  RGRG.. GBGB.. */
374 #define V4L2_PIX_FMT_SBGGR12 v4l2_fourcc('B', 'G', '1', '2') /* 12  BGBG.. GRGR.. */
375 #define V4L2_PIX_FMT_SGBRG12 v4l2_fourcc('G', 'B', '1', '2') /* 12  GBGB.. RGRG.. */
376 #define V4L2_PIX_FMT_SGRBG12 v4l2_fourcc('B', 'A', '1', '2') /* 12  GRGR.. BGBG.. */
377 #define V4L2_PIX_FMT_SRGGB12 v4l2_fourcc('R', 'G', '1', '2') /* 12  RGRG.. GBGB.. */
378 	/* 10bit raw bayer a-law compressed to 8 bits */
379 #define V4L2_PIX_FMT_SBGGR10ALAW8 v4l2_fourcc('a', 'B', 'A', '8')
380 #define V4L2_PIX_FMT_SGBRG10ALAW8 v4l2_fourcc('a', 'G', 'A', '8')
381 #define V4L2_PIX_FMT_SGRBG10ALAW8 v4l2_fourcc('a', 'g', 'A', '8')
382 #define V4L2_PIX_FMT_SRGGB10ALAW8 v4l2_fourcc('a', 'R', 'A', '8')
383 	/* 10bit raw bayer DPCM compressed to 8 bits */
384 #define V4L2_PIX_FMT_SBGGR10DPCM8 v4l2_fourcc('b', 'B', 'A', '8')
385 #define V4L2_PIX_FMT_SGBRG10DPCM8 v4l2_fourcc('b', 'G', 'A', '8')
386 #define V4L2_PIX_FMT_SGRBG10DPCM8 v4l2_fourcc('B', 'D', '1', '0')
387 #define V4L2_PIX_FMT_SRGGB10DPCM8 v4l2_fourcc('b', 'R', 'A', '8')
388 	/*
389 	 * 10bit raw bayer, expanded to 16 bits
390 	 * xxxxrrrrrrrrrrxxxxgggggggggg xxxxggggggggggxxxxbbbbbbbbbb...
391 	 */
392 #define V4L2_PIX_FMT_SBGGR16 v4l2_fourcc('B', 'Y', 'R', '2') /* 16  BGBG.. GRGR.. */
393 
394 /* compressed formats */
395 #define V4L2_PIX_FMT_MJPEG    v4l2_fourcc('M', 'J', 'P', 'G') /* Motion-JPEG   */
396 #define V4L2_PIX_FMT_JPEG     v4l2_fourcc('J', 'P', 'E', 'G') /* JFIF JPEG     */
397 #define V4L2_PIX_FMT_DV       v4l2_fourcc('d', 'v', 's', 'd') /* 1394          */
398 #define V4L2_PIX_FMT_MPEG     v4l2_fourcc('M', 'P', 'E', 'G') /* MPEG-1/2/4 Multiplexed */
399 #define V4L2_PIX_FMT_H264     v4l2_fourcc('H', '2', '6', '4') /* H264 with start codes */
400 #define V4L2_PIX_FMT_H264_NO_SC v4l2_fourcc('A', 'V', 'C', '1') /* H264 without start codes */
401 #define V4L2_PIX_FMT_H264_MVC v4l2_fourcc('M', '2', '6', '4') /* H264 MVC */
402 #define V4L2_PIX_FMT_H263     v4l2_fourcc('H', '2', '6', '3') /* H263          */
403 #define V4L2_PIX_FMT_MPEG1    v4l2_fourcc('M', 'P', 'G', '1') /* MPEG-1 ES     */
404 #define V4L2_PIX_FMT_MPEG2    v4l2_fourcc('M', 'P', 'G', '2') /* MPEG-2 ES     */
405 #define V4L2_PIX_FMT_MPEG4    v4l2_fourcc('M', 'P', 'G', '4') /* MPEG-4 part 2 ES */
406 #define V4L2_PIX_FMT_XVID     v4l2_fourcc('X', 'V', 'I', 'D') /* Xvid           */
407 #define V4L2_PIX_FMT_VC1_ANNEX_G v4l2_fourcc('V', 'C', '1', 'G') /* SMPTE 421M Annex G compliant stream */
408 #define V4L2_PIX_FMT_VC1_ANNEX_L v4l2_fourcc('V', 'C', '1', 'L') /* SMPTE 421M Annex L compliant stream */
409 #define V4L2_PIX_FMT_VP8      v4l2_fourcc('V', 'P', '8', '0') /* VP8 */
410 
411 /*  Vendor-specific formats   */
412 #define V4L2_PIX_FMT_CPIA1    v4l2_fourcc('C', 'P', 'I', 'A') /* cpia1 YUV */
413 #define V4L2_PIX_FMT_WNVA     v4l2_fourcc('W', 'N', 'V', 'A') /* Winnov hw compress */
414 #define V4L2_PIX_FMT_SN9C10X  v4l2_fourcc('S', '9', '1', '0') /* SN9C10x compression */
415 #define V4L2_PIX_FMT_SN9C20X_I420 v4l2_fourcc('S', '9', '2', '0') /* SN9C20x YUV 4:2:0 */
416 #define V4L2_PIX_FMT_PWC1     v4l2_fourcc('P', 'W', 'C', '1') /* pwc older webcam */
417 #define V4L2_PIX_FMT_PWC2     v4l2_fourcc('P', 'W', 'C', '2') /* pwc newer webcam */
418 #define V4L2_PIX_FMT_ET61X251 v4l2_fourcc('E', '6', '2', '5') /* ET61X251 compression */
419 #define V4L2_PIX_FMT_SPCA501  v4l2_fourcc('S', '5', '0', '1') /* YUYV per line */
420 #define V4L2_PIX_FMT_SPCA505  v4l2_fourcc('S', '5', '0', '5') /* YYUV per line */
421 #define V4L2_PIX_FMT_SPCA508  v4l2_fourcc('S', '5', '0', '8') /* YUVY per line */
422 #define V4L2_PIX_FMT_SPCA561  v4l2_fourcc('S', '5', '6', '1') /* compressed GBRG bayer */
423 #define V4L2_PIX_FMT_PAC207   v4l2_fourcc('P', '2', '0', '7') /* compressed BGGR bayer */
424 #define V4L2_PIX_FMT_MR97310A v4l2_fourcc('M', '3', '1', '0') /* compressed BGGR bayer */
425 #define V4L2_PIX_FMT_JL2005BCD v4l2_fourcc('J', 'L', '2', '0') /* compressed RGGB bayer */
426 #define V4L2_PIX_FMT_SN9C2028 v4l2_fourcc('S', 'O', 'N', 'X') /* compressed GBRG bayer */
427 #define V4L2_PIX_FMT_SQ905C   v4l2_fourcc('9', '0', '5', 'C') /* compressed RGGB bayer */
428 #define V4L2_PIX_FMT_PJPG     v4l2_fourcc('P', 'J', 'P', 'G') /* Pixart 73xx JPEG */
429 #define V4L2_PIX_FMT_OV511    v4l2_fourcc('O', '5', '1', '1') /* ov511 JPEG */
430 #define V4L2_PIX_FMT_OV518    v4l2_fourcc('O', '5', '1', '8') /* ov518 JPEG */
431 #define V4L2_PIX_FMT_STV0680  v4l2_fourcc('S', '6', '8', '0') /* stv0680 bayer */
432 #define V4L2_PIX_FMT_TM6000   v4l2_fourcc('T', 'M', '6', '0') /* tm5600/tm60x0 */
433 #define V4L2_PIX_FMT_CIT_YYVYUY v4l2_fourcc('C', 'I', 'T', 'V') /* one line of Y then 1 line of VYUY */
434 #define V4L2_PIX_FMT_KONICA420  v4l2_fourcc('K', 'O', 'N', 'I') /* YUV420 planar in blocks of 256 pixels */
435 #define V4L2_PIX_FMT_JPGL	v4l2_fourcc('J', 'P', 'G', 'L') /* JPEG-Lite */
436 #define V4L2_PIX_FMT_SE401      v4l2_fourcc('S', '4', '0', '1') /* se401 janggu compressed rgb */
437 #define V4L2_PIX_FMT_S5C_UYVY_JPG v4l2_fourcc('S', '5', 'C', 'I') /* S5C73M3 interleaved UYVY/JPEG */
438 
439 /* SDR formats - used only for Software Defined Radio devices */
440 #define V4L2_SDR_FMT_CU8          v4l2_fourcc('C', 'U', '0', '8') /* IQ u8 */
441 #define V4L2_SDR_FMT_CU16LE       v4l2_fourcc('C', 'U', '1', '6') /* IQ u16le */
442 
443 /*
444  *	F O R M A T   E N U M E R A T I O N
445  */
446 struct v4l2_fmtdesc {
447 	__u32		    index;             /* Format number      */
448 	__u32		    type;              /* enum v4l2_buf_type */
449 	__u32               flags;
450 	__u8		    description[32];   /* Description string */
451 	__u32		    pixelformat;       /* Format fourcc      */
452 	__u32		    reserved[4];
453 };
454 
455 #define V4L2_FMT_FLAG_COMPRESSED 0x0001
456 #define V4L2_FMT_FLAG_EMULATED   0x0002
457 
458 #if 1
459 	/* Experimental Frame Size and frame rate enumeration */
460 /*
461  *	F R A M E   S I Z E   E N U M E R A T I O N
462  */
463 enum v4l2_frmsizetypes {
464 	V4L2_FRMSIZE_TYPE_DISCRETE	= 1,
465 	V4L2_FRMSIZE_TYPE_CONTINUOUS	= 2,
466 	V4L2_FRMSIZE_TYPE_STEPWISE	= 3,
467 };
468 
469 struct v4l2_frmsize_discrete {
470 	__u32			width;		/* Frame width [pixel] */
471 	__u32			height;		/* Frame height [pixel] */
472 };
473 
474 struct v4l2_frmsize_stepwise {
475 	__u32			min_width;	/* Minimum frame width [pixel] */
476 	__u32			max_width;	/* Maximum frame width [pixel] */
477 	__u32			step_width;	/* Frame width step size [pixel] */
478 	__u32			min_height;	/* Minimum frame height [pixel] */
479 	__u32			max_height;	/* Maximum frame height [pixel] */
480 	__u32			step_height;	/* Frame height step size [pixel] */
481 };
482 
483 struct v4l2_frmsizeenum {
484 	__u32			index;		/* Frame size number */
485 	__u32			pixel_format;	/* Pixel format */
486 	__u32			type;		/* Frame size type the device supports. */
487 
488 	union {					/* Frame size */
489 		struct v4l2_frmsize_discrete	discrete;
490 		struct v4l2_frmsize_stepwise	stepwise;
491 	};
492 
493 	__u32   reserved[2];			/* Reserved space for future use */
494 };
495 
496 /*
497  *	F R A M E   R A T E   E N U M E R A T I O N
498  */
499 enum v4l2_frmivaltypes {
500 	V4L2_FRMIVAL_TYPE_DISCRETE	= 1,
501 	V4L2_FRMIVAL_TYPE_CONTINUOUS	= 2,
502 	V4L2_FRMIVAL_TYPE_STEPWISE	= 3,
503 };
504 
505 struct v4l2_frmival_stepwise {
506 	struct v4l2_fract	min;		/* Minimum frame interval [s] */
507 	struct v4l2_fract	max;		/* Maximum frame interval [s] */
508 	struct v4l2_fract	step;		/* Frame interval step size [s] */
509 };
510 
511 struct v4l2_frmivalenum {
512 	__u32			index;		/* Frame format index */
513 	__u32			pixel_format;	/* Pixel format */
514 	__u32			width;		/* Frame width */
515 	__u32			height;		/* Frame height */
516 	__u32			type;		/* Frame interval type the device supports. */
517 
518 	union {					/* Frame interval */
519 		struct v4l2_fract		discrete;
520 		struct v4l2_frmival_stepwise	stepwise;
521 	};
522 
523 	__u32	reserved[2];			/* Reserved space for future use */
524 };
525 #endif
526 
527 /*
528  *	T I M E C O D E
529  */
530 struct v4l2_timecode {
531 	__u32	type;
532 	__u32	flags;
533 	__u8	frames;
534 	__u8	seconds;
535 	__u8	minutes;
536 	__u8	hours;
537 	__u8	userbits[4];
538 };
539 
540 /*  Type  */
541 #define V4L2_TC_TYPE_24FPS		1
542 #define V4L2_TC_TYPE_25FPS		2
543 #define V4L2_TC_TYPE_30FPS		3
544 #define V4L2_TC_TYPE_50FPS		4
545 #define V4L2_TC_TYPE_60FPS		5
546 
547 /*  Flags  */
548 #define V4L2_TC_FLAG_DROPFRAME		0x0001 /* "drop-frame" mode */
549 #define V4L2_TC_FLAG_COLORFRAME		0x0002
550 #define V4L2_TC_USERBITS_field		0x000C
551 #define V4L2_TC_USERBITS_USERDEFINED	0x0000
552 #define V4L2_TC_USERBITS_8BITCHARS	0x0008
553 /* The above is based on SMPTE timecodes */
554 
555 struct v4l2_jpegcompression {
556 	int quality;
557 
558 	int  APPn;              /* Number of APP segment to be written,
559 				 * must be 0..15 */
560 	int  APP_len;           /* Length of data in JPEG APPn segment */
561 	char APP_data[60];      /* Data in the JPEG APPn segment. */
562 
563 	int  COM_len;           /* Length of data in JPEG COM segment */
564 	char COM_data[60];      /* Data in JPEG COM segment */
565 
566 	__u32 jpeg_markers;     /* Which markers should go into the JPEG
567 				 * output. Unless you exactly know what
568 				 * you do, leave them untouched.
569 				 * Including less markers will make the
570 				 * resulting code smaller, but there will
571 				 * be fewer applications which can read it.
572 				 * The presence of the APP and COM marker
573 				 * is influenced by APP_len and COM_len
574 				 * ONLY, not by this property! */
575 
576 #define V4L2_JPEG_MARKER_DHT (1<<3)    /* Define Huffman Tables */
577 #define V4L2_JPEG_MARKER_DQT (1<<4)    /* Define Quantization Tables */
578 #define V4L2_JPEG_MARKER_DRI (1<<5)    /* Define Restart Interval */
579 #define V4L2_JPEG_MARKER_COM (1<<6)    /* Comment segment */
580 #define V4L2_JPEG_MARKER_APP (1<<7)    /* App segment, driver will
581 					* always use APP0 */
582 };
583 
584 /*
585  *	M E M O R Y - M A P P I N G   B U F F E R S
586  */
587 struct v4l2_requestbuffers {
588 	__u32			count;
589 	__u32			type;		/* enum v4l2_buf_type */
590 	__u32			memory;		/* enum v4l2_memory */
591 	__u32			reserved[2];
592 };
593 
594 /**
595  * struct v4l2_plane - plane info for multi-planar buffers
596  * @bytesused:		number of bytes occupied by data in the plane (payload)
597  * @length:		size of this plane (NOT the payload) in bytes
598  * @mem_offset:		when memory in the associated struct v4l2_buffer is
599  *			V4L2_MEMORY_MMAP, equals the offset from the start of
600  *			the device memory for this plane (or is a "cookie" that
601  *			should be passed to mmap() called on the video node)
602  * @userptr:		when memory is V4L2_MEMORY_USERPTR, a userspace pointer
603  *			pointing to this plane
604  * @fd:			when memory is V4L2_MEMORY_DMABUF, a userspace file
605  *			descriptor associated with this plane
606  * @data_offset:	offset in the plane to the start of data; usually 0,
607  *			unless there is a header in front of the data
608  *
609  * Multi-planar buffers consist of one or more planes, e.g. an YCbCr buffer
610  * with two planes can have one plane for Y, and another for interleaved CbCr
611  * components. Each plane can reside in a separate memory buffer, or even in
612  * a completely separate memory node (e.g. in embedded devices).
613  */
614 struct v4l2_plane {
615 	__u32			bytesused;
616 	__u32			length;
617 	union {
618 		__u32		mem_offset;
619 		unsigned long	userptr;
620 		__s32		fd;
621 	} m;
622 	__u32			data_offset;
623 	__u32			reserved[11];
624 };
625 
626 /**
627  * struct v4l2_buffer - video buffer info
628  * @index:	id number of the buffer
629  * @type:	enum v4l2_buf_type; buffer type (type == *_MPLANE for
630  *		multiplanar buffers);
631  * @bytesused:	number of bytes occupied by data in the buffer (payload);
632  *		unused (set to 0) for multiplanar buffers
633  * @flags:	buffer informational flags
634  * @field:	enum v4l2_field; field order of the image in the buffer
635  * @timestamp:	frame timestamp
636  * @timecode:	frame timecode
637  * @sequence:	sequence count of this frame
638  * @memory:	enum v4l2_memory; the method, in which the actual video data is
639  *		passed
640  * @offset:	for non-multiplanar buffers with memory == V4L2_MEMORY_MMAP;
641  *		offset from the start of the device memory for this plane,
642  *		(or a "cookie" that should be passed to mmap() as offset)
643  * @userptr:	for non-multiplanar buffers with memory == V4L2_MEMORY_USERPTR;
644  *		a userspace pointer pointing to this buffer
645  * @fd:		for non-multiplanar buffers with memory == V4L2_MEMORY_DMABUF;
646  *		a userspace file descriptor associated with this buffer
647  * @planes:	for multiplanar buffers; userspace pointer to the array of plane
648  *		info structs for this buffer
649  * @length:	size in bytes of the buffer (NOT its payload) for single-plane
650  *		buffers (when type != *_MPLANE); number of elements in the
651  *		planes array for multi-plane buffers
652  *
653  * Contains data exchanged by application and driver using one of the Streaming
654  * I/O methods.
655  */
656 struct v4l2_buffer {
657 	__u32			index;
658 	__u32			type;
659 	__u32			bytesused;
660 	__u32			flags;
661 	__u32			field;
662 	struct timeval		timestamp;
663 	struct v4l2_timecode	timecode;
664 	__u32			sequence;
665 
666 	/* memory location */
667 	__u32			memory;
668 	union {
669 		__u32           offset;
670 		unsigned long   userptr;
671 		struct v4l2_plane *planes;
672 		__s32		fd;
673 	} m;
674 	__u32			length;
675 	__u32			reserved2;
676 	__u32			reserved;
677 };
678 
679 /*  Flags for 'flags' field */
680 /* Buffer is mapped (flag) */
681 #define V4L2_BUF_FLAG_MAPPED			0x00000001
682 /* Buffer is queued for processing */
683 #define V4L2_BUF_FLAG_QUEUED			0x00000002
684 /* Buffer is ready */
685 #define V4L2_BUF_FLAG_DONE			0x00000004
686 /* Image is a keyframe (I-frame) */
687 #define V4L2_BUF_FLAG_KEYFRAME			0x00000008
688 /* Image is a P-frame */
689 #define V4L2_BUF_FLAG_PFRAME			0x00000010
690 /* Image is a B-frame */
691 #define V4L2_BUF_FLAG_BFRAME			0x00000020
692 /* Buffer is ready, but the data contained within is corrupted. */
693 #define V4L2_BUF_FLAG_ERROR			0x00000040
694 /* timecode field is valid */
695 #define V4L2_BUF_FLAG_TIMECODE			0x00000100
696 /* Buffer is prepared for queuing */
697 #define V4L2_BUF_FLAG_PREPARED			0x00000400
698 /* Cache handling flags */
699 #define V4L2_BUF_FLAG_NO_CACHE_INVALIDATE	0x00000800
700 #define V4L2_BUF_FLAG_NO_CACHE_CLEAN		0x00001000
701 /* Timestamp type */
702 #define V4L2_BUF_FLAG_TIMESTAMP_MASK		0x0000e000
703 #define V4L2_BUF_FLAG_TIMESTAMP_UNKNOWN		0x00000000
704 #define V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC	0x00002000
705 #define V4L2_BUF_FLAG_TIMESTAMP_COPY		0x00004000
706 /* Timestamp sources. */
707 #define V4L2_BUF_FLAG_TSTAMP_SRC_MASK		0x00070000
708 #define V4L2_BUF_FLAG_TSTAMP_SRC_EOF		0x00000000
709 #define V4L2_BUF_FLAG_TSTAMP_SRC_SOE		0x00010000
710 
711 /**
712  * struct v4l2_exportbuffer - export of video buffer as DMABUF file descriptor
713  *
714  * @index:	id number of the buffer
715  * @type:	enum v4l2_buf_type; buffer type (type == *_MPLANE for
716  *		multiplanar buffers);
717  * @plane:	index of the plane to be exported, 0 for single plane queues
718  * @flags:	flags for newly created file, currently only O_CLOEXEC is
719  *		supported, refer to manual of open syscall for more details
720  * @fd:		file descriptor associated with DMABUF (set by driver)
721  *
722  * Contains data used for exporting a video buffer as DMABUF file descriptor.
723  * The buffer is identified by a 'cookie' returned by VIDIOC_QUERYBUF
724  * (identical to the cookie used to mmap() the buffer to userspace). All
725  * reserved fields must be set to zero. The field reserved0 is expected to
726  * become a structure 'type' allowing an alternative layout of the structure
727  * content. Therefore this field should not be used for any other extensions.
728  */
729 struct v4l2_exportbuffer {
730 	__u32		type; /* enum v4l2_buf_type */
731 	__u32		index;
732 	__u32		plane;
733 	__u32		flags;
734 	__s32		fd;
735 	__u32		reserved[11];
736 };
737 
738 /*
739  *	O V E R L A Y   P R E V I E W
740  */
741 struct v4l2_framebuffer {
742 	__u32			capability;
743 	__u32			flags;
744 /* FIXME: in theory we should pass something like PCI device + memory
745  * region + offset instead of some physical address */
746 	void                    *base;
747 	struct v4l2_pix_format	fmt;
748 };
749 /*  Flags for the 'capability' field. Read only */
750 #define V4L2_FBUF_CAP_EXTERNOVERLAY	0x0001
751 #define V4L2_FBUF_CAP_CHROMAKEY		0x0002
752 #define V4L2_FBUF_CAP_LIST_CLIPPING     0x0004
753 #define V4L2_FBUF_CAP_BITMAP_CLIPPING	0x0008
754 #define V4L2_FBUF_CAP_LOCAL_ALPHA	0x0010
755 #define V4L2_FBUF_CAP_GLOBAL_ALPHA	0x0020
756 #define V4L2_FBUF_CAP_LOCAL_INV_ALPHA	0x0040
757 #define V4L2_FBUF_CAP_SRC_CHROMAKEY	0x0080
758 /*  Flags for the 'flags' field. */
759 #define V4L2_FBUF_FLAG_PRIMARY		0x0001
760 #define V4L2_FBUF_FLAG_OVERLAY		0x0002
761 #define V4L2_FBUF_FLAG_CHROMAKEY	0x0004
762 #define V4L2_FBUF_FLAG_LOCAL_ALPHA	0x0008
763 #define V4L2_FBUF_FLAG_GLOBAL_ALPHA	0x0010
764 #define V4L2_FBUF_FLAG_LOCAL_INV_ALPHA	0x0020
765 #define V4L2_FBUF_FLAG_SRC_CHROMAKEY	0x0040
766 
767 struct v4l2_clip {
768 	struct v4l2_rect        c;
769 	struct v4l2_clip	__user *next;
770 };
771 
772 struct v4l2_window {
773 	struct v4l2_rect        w;
774 	__u32			field;	 /* enum v4l2_field */
775 	__u32			chromakey;
776 	struct v4l2_clip	__user *clips;
777 	__u32			clipcount;
778 	void			__user *bitmap;
779 	__u8                    global_alpha;
780 };
781 
782 /*
783  *	C A P T U R E   P A R A M E T E R S
784  */
785 struct v4l2_captureparm {
786 	__u32		   capability;	  /*  Supported modes */
787 	__u32		   capturemode;	  /*  Current mode */
788 	struct v4l2_fract  timeperframe;  /*  Time per frame in seconds */
789 	__u32		   extendedmode;  /*  Driver-specific extensions */
790 	__u32              readbuffers;   /*  # of buffers for read */
791 	__u32		   reserved[4];
792 };
793 
794 /*  Flags for 'capability' and 'capturemode' fields */
795 #define V4L2_MODE_HIGHQUALITY	0x0001	/*  High quality imaging mode */
796 #define V4L2_CAP_TIMEPERFRAME	0x1000	/*  timeperframe field is supported */
797 
798 struct v4l2_outputparm {
799 	__u32		   capability;	 /*  Supported modes */
800 	__u32		   outputmode;	 /*  Current mode */
801 	struct v4l2_fract  timeperframe; /*  Time per frame in seconds */
802 	__u32		   extendedmode; /*  Driver-specific extensions */
803 	__u32              writebuffers; /*  # of buffers for write */
804 	__u32		   reserved[4];
805 };
806 
807 /*
808  *	I N P U T   I M A G E   C R O P P I N G
809  */
810 struct v4l2_cropcap {
811 	__u32			type;	/* enum v4l2_buf_type */
812 	struct v4l2_rect        bounds;
813 	struct v4l2_rect        defrect;
814 	struct v4l2_fract       pixelaspect;
815 };
816 
817 struct v4l2_crop {
818 	__u32			type;	/* enum v4l2_buf_type */
819 	struct v4l2_rect        c;
820 };
821 
822 /**
823  * struct v4l2_selection - selection info
824  * @type:	buffer type (do not use *_MPLANE types)
825  * @target:	Selection target, used to choose one of possible rectangles;
826  *		defined in v4l2-common.h; V4L2_SEL_TGT_* .
827  * @flags:	constraints flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*.
828  * @r:		coordinates of selection window
829  * @reserved:	for future use, rounds structure size to 64 bytes, set to zero
830  *
831  * Hardware may use multiple helper windows to process a video stream.
832  * The structure is used to exchange this selection areas between
833  * an application and a driver.
834  */
835 struct v4l2_selection {
836 	__u32			type;
837 	__u32			target;
838 	__u32                   flags;
839 	struct v4l2_rect        r;
840 	__u32                   reserved[9];
841 };
842 
843 
844 /*
845  *      A N A L O G   V I D E O   S T A N D A R D
846  */
847 
848 typedef __u64 v4l2_std_id;
849 
850 /* one bit for each */
851 #define V4L2_STD_PAL_B          ((v4l2_std_id)0x00000001)
852 #define V4L2_STD_PAL_B1         ((v4l2_std_id)0x00000002)
853 #define V4L2_STD_PAL_G          ((v4l2_std_id)0x00000004)
854 #define V4L2_STD_PAL_H          ((v4l2_std_id)0x00000008)
855 #define V4L2_STD_PAL_I          ((v4l2_std_id)0x00000010)
856 #define V4L2_STD_PAL_D          ((v4l2_std_id)0x00000020)
857 #define V4L2_STD_PAL_D1         ((v4l2_std_id)0x00000040)
858 #define V4L2_STD_PAL_K          ((v4l2_std_id)0x00000080)
859 
860 #define V4L2_STD_PAL_M          ((v4l2_std_id)0x00000100)
861 #define V4L2_STD_PAL_N          ((v4l2_std_id)0x00000200)
862 #define V4L2_STD_PAL_Nc         ((v4l2_std_id)0x00000400)
863 #define V4L2_STD_PAL_60         ((v4l2_std_id)0x00000800)
864 
865 #define V4L2_STD_NTSC_M         ((v4l2_std_id)0x00001000)	/* BTSC */
866 #define V4L2_STD_NTSC_M_JP      ((v4l2_std_id)0x00002000)	/* EIA-J */
867 #define V4L2_STD_NTSC_443       ((v4l2_std_id)0x00004000)
868 #define V4L2_STD_NTSC_M_KR      ((v4l2_std_id)0x00008000)	/* FM A2 */
869 
870 #define V4L2_STD_SECAM_B        ((v4l2_std_id)0x00010000)
871 #define V4L2_STD_SECAM_D        ((v4l2_std_id)0x00020000)
872 #define V4L2_STD_SECAM_G        ((v4l2_std_id)0x00040000)
873 #define V4L2_STD_SECAM_H        ((v4l2_std_id)0x00080000)
874 #define V4L2_STD_SECAM_K        ((v4l2_std_id)0x00100000)
875 #define V4L2_STD_SECAM_K1       ((v4l2_std_id)0x00200000)
876 #define V4L2_STD_SECAM_L        ((v4l2_std_id)0x00400000)
877 #define V4L2_STD_SECAM_LC       ((v4l2_std_id)0x00800000)
878 
879 /* ATSC/HDTV */
880 #define V4L2_STD_ATSC_8_VSB     ((v4l2_std_id)0x01000000)
881 #define V4L2_STD_ATSC_16_VSB    ((v4l2_std_id)0x02000000)
882 
883 /* FIXME:
884    Although std_id is 64 bits, there is an issue on PPC32 architecture that
885    makes switch(__u64) to break. So, there's a hack on v4l2-common.c rounding
886    this value to 32 bits.
887    As, currently, the max value is for V4L2_STD_ATSC_16_VSB (30 bits wide),
888    it should work fine. However, if needed to add more than two standards,
889    v4l2-common.c should be fixed.
890  */
891 
892 /*
893  * Some macros to merge video standards in order to make live easier for the
894  * drivers and V4L2 applications
895  */
896 
897 /*
898  * "Common" NTSC/M - It should be noticed that V4L2_STD_NTSC_443 is
899  * Missing here.
900  */
901 #define V4L2_STD_NTSC           (V4L2_STD_NTSC_M	|\
902 				 V4L2_STD_NTSC_M_JP     |\
903 				 V4L2_STD_NTSC_M_KR)
904 /* Secam macros */
905 #define V4L2_STD_SECAM_DK      	(V4L2_STD_SECAM_D	|\
906 				 V4L2_STD_SECAM_K	|\
907 				 V4L2_STD_SECAM_K1)
908 /* All Secam Standards */
909 #define V4L2_STD_SECAM		(V4L2_STD_SECAM_B	|\
910 				 V4L2_STD_SECAM_G	|\
911 				 V4L2_STD_SECAM_H	|\
912 				 V4L2_STD_SECAM_DK	|\
913 				 V4L2_STD_SECAM_L       |\
914 				 V4L2_STD_SECAM_LC)
915 /* PAL macros */
916 #define V4L2_STD_PAL_BG		(V4L2_STD_PAL_B		|\
917 				 V4L2_STD_PAL_B1	|\
918 				 V4L2_STD_PAL_G)
919 #define V4L2_STD_PAL_DK		(V4L2_STD_PAL_D		|\
920 				 V4L2_STD_PAL_D1	|\
921 				 V4L2_STD_PAL_K)
922 /*
923  * "Common" PAL - This macro is there to be compatible with the old
924  * V4L1 concept of "PAL": /BGDKHI.
925  * Several PAL standards are missing here: /M, /N and /Nc
926  */
927 #define V4L2_STD_PAL		(V4L2_STD_PAL_BG	|\
928 				 V4L2_STD_PAL_DK	|\
929 				 V4L2_STD_PAL_H		|\
930 				 V4L2_STD_PAL_I)
931 /* Chroma "agnostic" standards */
932 #define V4L2_STD_B		(V4L2_STD_PAL_B		|\
933 				 V4L2_STD_PAL_B1	|\
934 				 V4L2_STD_SECAM_B)
935 #define V4L2_STD_G		(V4L2_STD_PAL_G		|\
936 				 V4L2_STD_SECAM_G)
937 #define V4L2_STD_H		(V4L2_STD_PAL_H		|\
938 				 V4L2_STD_SECAM_H)
939 #define V4L2_STD_L		(V4L2_STD_SECAM_L	|\
940 				 V4L2_STD_SECAM_LC)
941 #define V4L2_STD_GH		(V4L2_STD_G		|\
942 				 V4L2_STD_H)
943 #define V4L2_STD_DK		(V4L2_STD_PAL_DK	|\
944 				 V4L2_STD_SECAM_DK)
945 #define V4L2_STD_BG		(V4L2_STD_B		|\
946 				 V4L2_STD_G)
947 #define V4L2_STD_MN		(V4L2_STD_PAL_M		|\
948 				 V4L2_STD_PAL_N		|\
949 				 V4L2_STD_PAL_Nc	|\
950 				 V4L2_STD_NTSC)
951 
952 /* Standards where MTS/BTSC stereo could be found */
953 #define V4L2_STD_MTS		(V4L2_STD_NTSC_M	|\
954 				 V4L2_STD_PAL_M		|\
955 				 V4L2_STD_PAL_N		|\
956 				 V4L2_STD_PAL_Nc)
957 
958 /* Standards for Countries with 60Hz Line frequency */
959 #define V4L2_STD_525_60		(V4L2_STD_PAL_M		|\
960 				 V4L2_STD_PAL_60	|\
961 				 V4L2_STD_NTSC		|\
962 				 V4L2_STD_NTSC_443)
963 /* Standards for Countries with 50Hz Line frequency */
964 #define V4L2_STD_625_50		(V4L2_STD_PAL		|\
965 				 V4L2_STD_PAL_N		|\
966 				 V4L2_STD_PAL_Nc	|\
967 				 V4L2_STD_SECAM)
968 
969 #define V4L2_STD_ATSC           (V4L2_STD_ATSC_8_VSB    |\
970 				 V4L2_STD_ATSC_16_VSB)
971 /* Macros with none and all analog standards */
972 #define V4L2_STD_UNKNOWN        0
973 #define V4L2_STD_ALL            (V4L2_STD_525_60	|\
974 				 V4L2_STD_625_50)
975 
976 struct v4l2_standard {
977 	__u32		     index;
978 	v4l2_std_id          id;
979 	__u8		     name[24];
980 	struct v4l2_fract    frameperiod; /* Frames, not fields */
981 	__u32		     framelines;
982 	__u32		     reserved[4];
983 };
984 
985 /*
986  *	D V 	B T	T I M I N G S
987  */
988 
989 /** struct v4l2_bt_timings - BT.656/BT.1120 timing data
990  * @width:	total width of the active video in pixels
991  * @height:	total height of the active video in lines
992  * @interlaced:	Interlaced or progressive
993  * @polarities:	Positive or negative polarities
994  * @pixelclock:	Pixel clock in HZ. Ex. 74.25MHz->74250000
995  * @hfrontporch:Horizontal front porch in pixels
996  * @hsync:	Horizontal Sync length in pixels
997  * @hbackporch:	Horizontal back porch in pixels
998  * @vfrontporch:Vertical front porch in lines
999  * @vsync:	Vertical Sync length in lines
1000  * @vbackporch:	Vertical back porch in lines
1001  * @il_vfrontporch:Vertical front porch for the even field
1002  *		(aka field 2) of interlaced field formats
1003  * @il_vsync:	Vertical Sync length for the even field
1004  *		(aka field 2) of interlaced field formats
1005  * @il_vbackporch:Vertical back porch for the even field
1006  *		(aka field 2) of interlaced field formats
1007  * @standards:	Standards the timing belongs to
1008  * @flags:	Flags
1009  * @reserved:	Reserved fields, must be zeroed.
1010  *
1011  * A note regarding vertical interlaced timings: height refers to the total
1012  * height of the active video frame (= two fields). The blanking timings refer
1013  * to the blanking of each field. So the height of the total frame is
1014  * calculated as follows:
1015  *
1016  * tot_height = height + vfrontporch + vsync + vbackporch +
1017  *                       il_vfrontporch + il_vsync + il_vbackporch
1018  *
1019  * The active height of each field is height / 2.
1020  */
1021 struct v4l2_bt_timings {
1022 	__u32	width;
1023 	__u32	height;
1024 	__u32	interlaced;
1025 	__u32	polarities;
1026 	__u64	pixelclock;
1027 	__u32	hfrontporch;
1028 	__u32	hsync;
1029 	__u32	hbackporch;
1030 	__u32	vfrontporch;
1031 	__u32	vsync;
1032 	__u32	vbackporch;
1033 	__u32	il_vfrontporch;
1034 	__u32	il_vsync;
1035 	__u32	il_vbackporch;
1036 	__u32	standards;
1037 	__u32	flags;
1038 	__u32	reserved[14];
1039 } __attribute__ ((packed));
1040 
1041 /* Interlaced or progressive format */
1042 #define	V4L2_DV_PROGRESSIVE	0
1043 #define	V4L2_DV_INTERLACED	1
1044 
1045 /* Polarities. If bit is not set, it is assumed to be negative polarity */
1046 #define V4L2_DV_VSYNC_POS_POL	0x00000001
1047 #define V4L2_DV_HSYNC_POS_POL	0x00000002
1048 
1049 /* Timings standards */
1050 #define V4L2_DV_BT_STD_CEA861	(1 << 0)  /* CEA-861 Digital TV Profile */
1051 #define V4L2_DV_BT_STD_DMT	(1 << 1)  /* VESA Discrete Monitor Timings */
1052 #define V4L2_DV_BT_STD_CVT	(1 << 2)  /* VESA Coordinated Video Timings */
1053 #define V4L2_DV_BT_STD_GTF	(1 << 3)  /* VESA Generalized Timings Formula */
1054 
1055 /* Flags */
1056 
1057 /* CVT/GTF specific: timing uses reduced blanking (CVT) or the 'Secondary
1058    GTF' curve (GTF). In both cases the horizontal and/or vertical blanking
1059    intervals are reduced, allowing a higher resolution over the same
1060    bandwidth. This is a read-only flag. */
1061 #define V4L2_DV_FL_REDUCED_BLANKING		(1 << 0)
1062 /* CEA-861 specific: set for CEA-861 formats with a framerate of a multiple
1063    of six. These formats can be optionally played at 1 / 1.001 speed.
1064    This is a read-only flag. */
1065 #define V4L2_DV_FL_CAN_REDUCE_FPS		(1 << 1)
1066 /* CEA-861 specific: only valid for video transmitters, the flag is cleared
1067    by receivers.
1068    If the framerate of the format is a multiple of six, then the pixelclock
1069    used to set up the transmitter is divided by 1.001 to make it compatible
1070    with 60 Hz based standards such as NTSC and PAL-M that use a framerate of
1071    29.97 Hz. Otherwise this flag is cleared. If the transmitter can't generate
1072    such frequencies, then the flag will also be cleared. */
1073 #define V4L2_DV_FL_REDUCED_FPS			(1 << 2)
1074 /* Specific to interlaced formats: if set, then field 1 is really one half-line
1075    longer and field 2 is really one half-line shorter, so each field has
1076    exactly the same number of half-lines. Whether half-lines can be detected
1077    or used depends on the hardware. */
1078 #define V4L2_DV_FL_HALF_LINE			(1 << 3)
1079 
1080 /* A few useful defines to calculate the total blanking and frame sizes */
1081 #define V4L2_DV_BT_BLANKING_WIDTH(bt) \
1082 	((bt)->hfrontporch + (bt)->hsync + (bt)->hbackporch)
1083 #define V4L2_DV_BT_FRAME_WIDTH(bt) \
1084 	((bt)->width + V4L2_DV_BT_BLANKING_WIDTH(bt))
1085 #define V4L2_DV_BT_BLANKING_HEIGHT(bt) \
1086 	((bt)->vfrontporch + (bt)->vsync + (bt)->vbackporch + \
1087 	 (bt)->il_vfrontporch + (bt)->il_vsync + (bt)->il_vbackporch)
1088 #define V4L2_DV_BT_FRAME_HEIGHT(bt) \
1089 	((bt)->height + V4L2_DV_BT_BLANKING_HEIGHT(bt))
1090 
1091 /** struct v4l2_dv_timings - DV timings
1092  * @type:	the type of the timings
1093  * @bt:	BT656/1120 timings
1094  */
1095 struct v4l2_dv_timings {
1096 	__u32 type;
1097 	union {
1098 		struct v4l2_bt_timings	bt;
1099 		__u32	reserved[32];
1100 	};
1101 } __attribute__ ((packed));
1102 
1103 /* Values for the type field */
1104 #define V4L2_DV_BT_656_1120	0	/* BT.656/1120 timing type */
1105 
1106 
1107 /** struct v4l2_enum_dv_timings - DV timings enumeration
1108  * @index:	enumeration index
1109  * @pad:	the pad number for which to enumerate timings (used with
1110  *		v4l-subdev nodes only)
1111  * @reserved:	must be zeroed
1112  * @timings:	the timings for the given index
1113  */
1114 struct v4l2_enum_dv_timings {
1115 	__u32 index;
1116 	__u32 pad;
1117 	__u32 reserved[2];
1118 	struct v4l2_dv_timings timings;
1119 };
1120 
1121 /** struct v4l2_bt_timings_cap - BT.656/BT.1120 timing capabilities
1122  * @min_width:		width in pixels
1123  * @max_width:		width in pixels
1124  * @min_height:		height in lines
1125  * @max_height:		height in lines
1126  * @min_pixelclock:	Pixel clock in HZ. Ex. 74.25MHz->74250000
1127  * @max_pixelclock:	Pixel clock in HZ. Ex. 74.25MHz->74250000
1128  * @standards:		Supported standards
1129  * @capabilities:	Supported capabilities
1130  * @reserved:		Must be zeroed
1131  */
1132 struct v4l2_bt_timings_cap {
1133 	__u32	min_width;
1134 	__u32	max_width;
1135 	__u32	min_height;
1136 	__u32	max_height;
1137 	__u64	min_pixelclock;
1138 	__u64	max_pixelclock;
1139 	__u32	standards;
1140 	__u32	capabilities;
1141 	__u32	reserved[16];
1142 } __attribute__ ((packed));
1143 
1144 /* Supports interlaced formats */
1145 #define V4L2_DV_BT_CAP_INTERLACED	(1 << 0)
1146 /* Supports progressive formats */
1147 #define V4L2_DV_BT_CAP_PROGRESSIVE	(1 << 1)
1148 /* Supports CVT/GTF reduced blanking */
1149 #define V4L2_DV_BT_CAP_REDUCED_BLANKING	(1 << 2)
1150 /* Supports custom formats */
1151 #define V4L2_DV_BT_CAP_CUSTOM		(1 << 3)
1152 
1153 /** struct v4l2_dv_timings_cap - DV timings capabilities
1154  * @type:	the type of the timings (same as in struct v4l2_dv_timings)
1155  * @pad:	the pad number for which to query capabilities (used with
1156  *		v4l-subdev nodes only)
1157  * @bt:		the BT656/1120 timings capabilities
1158  */
1159 struct v4l2_dv_timings_cap {
1160 	__u32 type;
1161 	__u32 pad;
1162 	__u32 reserved[2];
1163 	union {
1164 		struct v4l2_bt_timings_cap bt;
1165 		__u32 raw_data[32];
1166 	};
1167 };
1168 
1169 
1170 /*
1171  *	V I D E O   I N P U T S
1172  */
1173 struct v4l2_input {
1174 	__u32	     index;		/*  Which input */
1175 	__u8	     name[32];		/*  Label */
1176 	__u32	     type;		/*  Type of input */
1177 	__u32	     audioset;		/*  Associated audios (bitfield) */
1178 	__u32        tuner;             /*  enum v4l2_tuner_type */
1179 	v4l2_std_id  std;
1180 	__u32	     status;
1181 	__u32	     capabilities;
1182 	__u32	     reserved[3];
1183 };
1184 
1185 /*  Values for the 'type' field */
1186 #define V4L2_INPUT_TYPE_TUNER		1
1187 #define V4L2_INPUT_TYPE_CAMERA		2
1188 
1189 /* field 'status' - general */
1190 #define V4L2_IN_ST_NO_POWER    0x00000001  /* Attached device is off */
1191 #define V4L2_IN_ST_NO_SIGNAL   0x00000002
1192 #define V4L2_IN_ST_NO_COLOR    0x00000004
1193 
1194 /* field 'status' - sensor orientation */
1195 /* If sensor is mounted upside down set both bits */
1196 #define V4L2_IN_ST_HFLIP       0x00000010 /* Frames are flipped horizontally */
1197 #define V4L2_IN_ST_VFLIP       0x00000020 /* Frames are flipped vertically */
1198 
1199 /* field 'status' - analog */
1200 #define V4L2_IN_ST_NO_H_LOCK   0x00000100  /* No horizontal sync lock */
1201 #define V4L2_IN_ST_COLOR_KILL  0x00000200  /* Color killer is active */
1202 
1203 /* field 'status' - digital */
1204 #define V4L2_IN_ST_NO_SYNC     0x00010000  /* No synchronization lock */
1205 #define V4L2_IN_ST_NO_EQU      0x00020000  /* No equalizer lock */
1206 #define V4L2_IN_ST_NO_CARRIER  0x00040000  /* Carrier recovery failed */
1207 
1208 /* field 'status' - VCR and set-top box */
1209 #define V4L2_IN_ST_MACROVISION 0x01000000  /* Macrovision detected */
1210 #define V4L2_IN_ST_NO_ACCESS   0x02000000  /* Conditional access denied */
1211 #define V4L2_IN_ST_VTR         0x04000000  /* VTR time constant */
1212 
1213 /* capabilities flags */
1214 #define V4L2_IN_CAP_DV_TIMINGS		0x00000002 /* Supports S_DV_TIMINGS */
1215 #define V4L2_IN_CAP_CUSTOM_TIMINGS	V4L2_IN_CAP_DV_TIMINGS /* For compatibility */
1216 #define V4L2_IN_CAP_STD			0x00000004 /* Supports S_STD */
1217 
1218 /*
1219  *	V I D E O   O U T P U T S
1220  */
1221 struct v4l2_output {
1222 	__u32	     index;		/*  Which output */
1223 	__u8	     name[32];		/*  Label */
1224 	__u32	     type;		/*  Type of output */
1225 	__u32	     audioset;		/*  Associated audios (bitfield) */
1226 	__u32	     modulator;         /*  Associated modulator */
1227 	v4l2_std_id  std;
1228 	__u32	     capabilities;
1229 	__u32	     reserved[3];
1230 };
1231 /*  Values for the 'type' field */
1232 #define V4L2_OUTPUT_TYPE_MODULATOR		1
1233 #define V4L2_OUTPUT_TYPE_ANALOG			2
1234 #define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY	3
1235 
1236 /* capabilities flags */
1237 #define V4L2_OUT_CAP_DV_TIMINGS		0x00000002 /* Supports S_DV_TIMINGS */
1238 #define V4L2_OUT_CAP_CUSTOM_TIMINGS	V4L2_OUT_CAP_DV_TIMINGS /* For compatibility */
1239 #define V4L2_OUT_CAP_STD		0x00000004 /* Supports S_STD */
1240 
1241 /*
1242  *	C O N T R O L S
1243  */
1244 struct v4l2_control {
1245 	__u32		     id;
1246 	__s32		     value;
1247 };
1248 
1249 struct v4l2_ext_control {
1250 	__u32 id;
1251 	__u32 size;
1252 	__u32 reserved2[1];
1253 	union {
1254 		__s32 value;
1255 		__s64 value64;
1256 		char *string;
1257 	};
1258 } __attribute__ ((packed));
1259 
1260 struct v4l2_ext_controls {
1261 	__u32 ctrl_class;
1262 	__u32 count;
1263 	__u32 error_idx;
1264 	__u32 reserved[2];
1265 	struct v4l2_ext_control *controls;
1266 };
1267 
1268 #define V4L2_CTRL_ID_MASK      	  (0x0fffffff)
1269 #define V4L2_CTRL_ID2CLASS(id)    ((id) & 0x0fff0000UL)
1270 #define V4L2_CTRL_DRIVER_PRIV(id) (((id) & 0xffff) >= 0x1000)
1271 
1272 enum v4l2_ctrl_type {
1273 	V4L2_CTRL_TYPE_INTEGER	     = 1,
1274 	V4L2_CTRL_TYPE_BOOLEAN	     = 2,
1275 	V4L2_CTRL_TYPE_MENU	     = 3,
1276 	V4L2_CTRL_TYPE_BUTTON	     = 4,
1277 	V4L2_CTRL_TYPE_INTEGER64     = 5,
1278 	V4L2_CTRL_TYPE_CTRL_CLASS    = 6,
1279 	V4L2_CTRL_TYPE_STRING        = 7,
1280 	V4L2_CTRL_TYPE_BITMASK       = 8,
1281 	V4L2_CTRL_TYPE_INTEGER_MENU = 9,
1282 };
1283 
1284 /*  Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
1285 struct v4l2_queryctrl {
1286 	__u32		     id;
1287 	__u32		     type;	/* enum v4l2_ctrl_type */
1288 	__u8		     name[32];	/* Whatever */
1289 	__s32		     minimum;	/* Note signedness */
1290 	__s32		     maximum;
1291 	__s32		     step;
1292 	__s32		     default_value;
1293 	__u32                flags;
1294 	__u32		     reserved[2];
1295 };
1296 
1297 /*  Used in the VIDIOC_QUERYMENU ioctl for querying menu items */
1298 struct v4l2_querymenu {
1299 	__u32		id;
1300 	__u32		index;
1301 	union {
1302 		__u8	name[32];	/* Whatever */
1303 		__s64	value;
1304 	};
1305 	__u32		reserved;
1306 } __attribute__ ((packed));
1307 
1308 /*  Control flags  */
1309 #define V4L2_CTRL_FLAG_DISABLED		0x0001
1310 #define V4L2_CTRL_FLAG_GRABBED		0x0002
1311 #define V4L2_CTRL_FLAG_READ_ONLY 	0x0004
1312 #define V4L2_CTRL_FLAG_UPDATE 		0x0008
1313 #define V4L2_CTRL_FLAG_INACTIVE 	0x0010
1314 #define V4L2_CTRL_FLAG_SLIDER 		0x0020
1315 #define V4L2_CTRL_FLAG_WRITE_ONLY 	0x0040
1316 #define V4L2_CTRL_FLAG_VOLATILE		0x0080
1317 
1318 /*  Query flag, to be ORed with the control ID */
1319 #define V4L2_CTRL_FLAG_NEXT_CTRL	0x80000000
1320 
1321 /*  User-class control IDs defined by V4L2 */
1322 #define V4L2_CID_MAX_CTRLS		1024
1323 /*  IDs reserved for driver specific controls */
1324 #define V4L2_CID_PRIVATE_BASE		0x08000000
1325 
1326 
1327 /*
1328  *	T U N I N G
1329  */
1330 struct v4l2_tuner {
1331 	__u32                   index;
1332 	__u8			name[32];
1333 	__u32			type;	/* enum v4l2_tuner_type */
1334 	__u32			capability;
1335 	__u32			rangelow;
1336 	__u32			rangehigh;
1337 	__u32			rxsubchans;
1338 	__u32			audmode;
1339 	__s32			signal;
1340 	__s32			afc;
1341 	__u32			reserved[4];
1342 };
1343 
1344 struct v4l2_modulator {
1345 	__u32			index;
1346 	__u8			name[32];
1347 	__u32			capability;
1348 	__u32			rangelow;
1349 	__u32			rangehigh;
1350 	__u32			txsubchans;
1351 	__u32			reserved[4];
1352 };
1353 
1354 /*  Flags for the 'capability' field */
1355 #define V4L2_TUNER_CAP_LOW		0x0001
1356 #define V4L2_TUNER_CAP_NORM		0x0002
1357 #define V4L2_TUNER_CAP_HWSEEK_BOUNDED	0x0004
1358 #define V4L2_TUNER_CAP_HWSEEK_WRAP	0x0008
1359 #define V4L2_TUNER_CAP_STEREO		0x0010
1360 #define V4L2_TUNER_CAP_LANG2		0x0020
1361 #define V4L2_TUNER_CAP_SAP		0x0020
1362 #define V4L2_TUNER_CAP_LANG1		0x0040
1363 #define V4L2_TUNER_CAP_RDS		0x0080
1364 #define V4L2_TUNER_CAP_RDS_BLOCK_IO	0x0100
1365 #define V4L2_TUNER_CAP_RDS_CONTROLS	0x0200
1366 #define V4L2_TUNER_CAP_FREQ_BANDS	0x0400
1367 #define V4L2_TUNER_CAP_HWSEEK_PROG_LIM	0x0800
1368 #define V4L2_TUNER_CAP_1HZ		0x1000
1369 
1370 /*  Flags for the 'rxsubchans' field */
1371 #define V4L2_TUNER_SUB_MONO		0x0001
1372 #define V4L2_TUNER_SUB_STEREO		0x0002
1373 #define V4L2_TUNER_SUB_LANG2		0x0004
1374 #define V4L2_TUNER_SUB_SAP		0x0004
1375 #define V4L2_TUNER_SUB_LANG1		0x0008
1376 #define V4L2_TUNER_SUB_RDS		0x0010
1377 
1378 /*  Values for the 'audmode' field */
1379 #define V4L2_TUNER_MODE_MONO		0x0000
1380 #define V4L2_TUNER_MODE_STEREO		0x0001
1381 #define V4L2_TUNER_MODE_LANG2		0x0002
1382 #define V4L2_TUNER_MODE_SAP		0x0002
1383 #define V4L2_TUNER_MODE_LANG1		0x0003
1384 #define V4L2_TUNER_MODE_LANG1_LANG2	0x0004
1385 
1386 struct v4l2_frequency {
1387 	__u32	tuner;
1388 	__u32	type;	/* enum v4l2_tuner_type */
1389 	__u32	frequency;
1390 	__u32	reserved[8];
1391 };
1392 
1393 #define V4L2_BAND_MODULATION_VSB	(1 << 1)
1394 #define V4L2_BAND_MODULATION_FM		(1 << 2)
1395 #define V4L2_BAND_MODULATION_AM		(1 << 3)
1396 
1397 struct v4l2_frequency_band {
1398 	__u32	tuner;
1399 	__u32	type;	/* enum v4l2_tuner_type */
1400 	__u32	index;
1401 	__u32	capability;
1402 	__u32	rangelow;
1403 	__u32	rangehigh;
1404 	__u32	modulation;
1405 	__u32	reserved[9];
1406 };
1407 
1408 struct v4l2_hw_freq_seek {
1409 	__u32	tuner;
1410 	__u32	type;	/* enum v4l2_tuner_type */
1411 	__u32	seek_upward;
1412 	__u32	wrap_around;
1413 	__u32	spacing;
1414 	__u32	rangelow;
1415 	__u32	rangehigh;
1416 	__u32	reserved[5];
1417 };
1418 
1419 /*
1420  *	R D S
1421  */
1422 
1423 struct v4l2_rds_data {
1424 	__u8 	lsb;
1425 	__u8 	msb;
1426 	__u8 	block;
1427 } __attribute__ ((packed));
1428 
1429 #define V4L2_RDS_BLOCK_MSK 	 0x7
1430 #define V4L2_RDS_BLOCK_A 	 0
1431 #define V4L2_RDS_BLOCK_B 	 1
1432 #define V4L2_RDS_BLOCK_C 	 2
1433 #define V4L2_RDS_BLOCK_D 	 3
1434 #define V4L2_RDS_BLOCK_C_ALT 	 4
1435 #define V4L2_RDS_BLOCK_INVALID 	 7
1436 
1437 #define V4L2_RDS_BLOCK_CORRECTED 0x40
1438 #define V4L2_RDS_BLOCK_ERROR 	 0x80
1439 
1440 /*
1441  *	A U D I O
1442  */
1443 struct v4l2_audio {
1444 	__u32	index;
1445 	__u8	name[32];
1446 	__u32	capability;
1447 	__u32	mode;
1448 	__u32	reserved[2];
1449 };
1450 
1451 /*  Flags for the 'capability' field */
1452 #define V4L2_AUDCAP_STEREO		0x00001
1453 #define V4L2_AUDCAP_AVL			0x00002
1454 
1455 /*  Flags for the 'mode' field */
1456 #define V4L2_AUDMODE_AVL		0x00001
1457 
1458 struct v4l2_audioout {
1459 	__u32	index;
1460 	__u8	name[32];
1461 	__u32	capability;
1462 	__u32	mode;
1463 	__u32	reserved[2];
1464 };
1465 
1466 /*
1467  *	M P E G   S E R V I C E S
1468  *
1469  *	NOTE: EXPERIMENTAL API
1470  */
1471 #if 1
1472 #define V4L2_ENC_IDX_FRAME_I    (0)
1473 #define V4L2_ENC_IDX_FRAME_P    (1)
1474 #define V4L2_ENC_IDX_FRAME_B    (2)
1475 #define V4L2_ENC_IDX_FRAME_MASK (0xf)
1476 
1477 struct v4l2_enc_idx_entry {
1478 	__u64 offset;
1479 	__u64 pts;
1480 	__u32 length;
1481 	__u32 flags;
1482 	__u32 reserved[2];
1483 };
1484 
1485 #define V4L2_ENC_IDX_ENTRIES (64)
1486 struct v4l2_enc_idx {
1487 	__u32 entries;
1488 	__u32 entries_cap;
1489 	__u32 reserved[4];
1490 	struct v4l2_enc_idx_entry entry[V4L2_ENC_IDX_ENTRIES];
1491 };
1492 
1493 
1494 #define V4L2_ENC_CMD_START      (0)
1495 #define V4L2_ENC_CMD_STOP       (1)
1496 #define V4L2_ENC_CMD_PAUSE      (2)
1497 #define V4L2_ENC_CMD_RESUME     (3)
1498 
1499 /* Flags for V4L2_ENC_CMD_STOP */
1500 #define V4L2_ENC_CMD_STOP_AT_GOP_END    (1 << 0)
1501 
1502 struct v4l2_encoder_cmd {
1503 	__u32 cmd;
1504 	__u32 flags;
1505 	union {
1506 		struct {
1507 			__u32 data[8];
1508 		} raw;
1509 	};
1510 };
1511 
1512 /* Decoder commands */
1513 #define V4L2_DEC_CMD_START       (0)
1514 #define V4L2_DEC_CMD_STOP        (1)
1515 #define V4L2_DEC_CMD_PAUSE       (2)
1516 #define V4L2_DEC_CMD_RESUME      (3)
1517 
1518 /* Flags for V4L2_DEC_CMD_START */
1519 #define V4L2_DEC_CMD_START_MUTE_AUDIO	(1 << 0)
1520 
1521 /* Flags for V4L2_DEC_CMD_PAUSE */
1522 #define V4L2_DEC_CMD_PAUSE_TO_BLACK	(1 << 0)
1523 
1524 /* Flags for V4L2_DEC_CMD_STOP */
1525 #define V4L2_DEC_CMD_STOP_TO_BLACK	(1 << 0)
1526 #define V4L2_DEC_CMD_STOP_IMMEDIATELY	(1 << 1)
1527 
1528 /* Play format requirements (returned by the driver): */
1529 
1530 /* The decoder has no special format requirements */
1531 #define V4L2_DEC_START_FMT_NONE		(0)
1532 /* The decoder requires full GOPs */
1533 #define V4L2_DEC_START_FMT_GOP		(1)
1534 
1535 /* The structure must be zeroed before use by the application
1536    This ensures it can be extended safely in the future. */
1537 struct v4l2_decoder_cmd {
1538 	__u32 cmd;
1539 	__u32 flags;
1540 	union {
1541 		struct {
1542 			__u64 pts;
1543 		} stop;
1544 
1545 		struct {
1546 			/* 0 or 1000 specifies normal speed,
1547 			   1 specifies forward single stepping,
1548 			   -1 specifies backward single stepping,
1549 			   >1: playback at speed/1000 of the normal speed,
1550 			   <-1: reverse playback at (-speed/1000) of the normal speed. */
1551 			__s32 speed;
1552 			__u32 format;
1553 		} start;
1554 
1555 		struct {
1556 			__u32 data[16];
1557 		} raw;
1558 	};
1559 };
1560 #endif
1561 
1562 
1563 /*
1564  *	D A T A   S E R V I C E S   ( V B I )
1565  *
1566  *	Data services API by Michael Schimek
1567  */
1568 
1569 /* Raw VBI */
1570 struct v4l2_vbi_format {
1571 	__u32	sampling_rate;		/* in 1 Hz */
1572 	__u32	offset;
1573 	__u32	samples_per_line;
1574 	__u32	sample_format;		/* V4L2_PIX_FMT_* */
1575 	__s32	start[2];
1576 	__u32	count[2];
1577 	__u32	flags;			/* V4L2_VBI_* */
1578 	__u32	reserved[2];		/* must be zero */
1579 };
1580 
1581 /*  VBI flags  */
1582 #define V4L2_VBI_UNSYNC		(1 << 0)
1583 #define V4L2_VBI_INTERLACED	(1 << 1)
1584 
1585 /* Sliced VBI
1586  *
1587  *    This implements is a proposal V4L2 API to allow SLICED VBI
1588  * required for some hardware encoders. It should change without
1589  * notice in the definitive implementation.
1590  */
1591 
1592 struct v4l2_sliced_vbi_format {
1593 	__u16   service_set;
1594 	/* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
1595 	   service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
1596 				 (equals frame lines 313-336 for 625 line video
1597 				  standards, 263-286 for 525 line standards) */
1598 	__u16   service_lines[2][24];
1599 	__u32   io_size;
1600 	__u32   reserved[2];            /* must be zero */
1601 };
1602 
1603 /* Teletext World System Teletext
1604    (WST), defined on ITU-R BT.653-2 */
1605 #define V4L2_SLICED_TELETEXT_B          (0x0001)
1606 /* Video Program System, defined on ETS 300 231*/
1607 #define V4L2_SLICED_VPS                 (0x0400)
1608 /* Closed Caption, defined on EIA-608 */
1609 #define V4L2_SLICED_CAPTION_525         (0x1000)
1610 /* Wide Screen System, defined on ITU-R BT1119.1 */
1611 #define V4L2_SLICED_WSS_625             (0x4000)
1612 
1613 #define V4L2_SLICED_VBI_525             (V4L2_SLICED_CAPTION_525)
1614 #define V4L2_SLICED_VBI_625             (V4L2_SLICED_TELETEXT_B | V4L2_SLICED_VPS | V4L2_SLICED_WSS_625)
1615 
1616 struct v4l2_sliced_vbi_cap {
1617 	__u16   service_set;
1618 	/* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
1619 	   service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
1620 				 (equals frame lines 313-336 for 625 line video
1621 				  standards, 263-286 for 525 line standards) */
1622 	__u16   service_lines[2][24];
1623 	__u32	type;		/* enum v4l2_buf_type */
1624 	__u32   reserved[3];    /* must be 0 */
1625 };
1626 
1627 struct v4l2_sliced_vbi_data {
1628 	__u32   id;
1629 	__u32   field;          /* 0: first field, 1: second field */
1630 	__u32   line;           /* 1-23 */
1631 	__u32   reserved;       /* must be 0 */
1632 	__u8    data[48];
1633 };
1634 
1635 /*
1636  * Sliced VBI data inserted into MPEG Streams
1637  */
1638 
1639 /*
1640  * V4L2_MPEG_STREAM_VBI_FMT_IVTV:
1641  *
1642  * Structure of payload contained in an MPEG 2 Private Stream 1 PES Packet in an
1643  * MPEG-2 Program Pack that contains V4L2_MPEG_STREAM_VBI_FMT_IVTV Sliced VBI
1644  * data
1645  *
1646  * Note, the MPEG-2 Program Pack and Private Stream 1 PES packet header
1647  * definitions are not included here.  See the MPEG-2 specifications for details
1648  * on these headers.
1649  */
1650 
1651 /* Line type IDs */
1652 #define V4L2_MPEG_VBI_IVTV_TELETEXT_B     (1)
1653 #define V4L2_MPEG_VBI_IVTV_CAPTION_525    (4)
1654 #define V4L2_MPEG_VBI_IVTV_WSS_625        (5)
1655 #define V4L2_MPEG_VBI_IVTV_VPS            (7)
1656 
1657 struct v4l2_mpeg_vbi_itv0_line {
1658 	__u8 id;	/* One of V4L2_MPEG_VBI_IVTV_* above */
1659 	__u8 data[42];	/* Sliced VBI data for the line */
1660 } __attribute__ ((packed));
1661 
1662 struct v4l2_mpeg_vbi_itv0 {
1663 	__le32 linemask[2]; /* Bitmasks of VBI service lines present */
1664 	struct v4l2_mpeg_vbi_itv0_line line[35];
1665 } __attribute__ ((packed));
1666 
1667 struct v4l2_mpeg_vbi_ITV0 {
1668 	struct v4l2_mpeg_vbi_itv0_line line[36];
1669 } __attribute__ ((packed));
1670 
1671 #define V4L2_MPEG_VBI_IVTV_MAGIC0	"itv0"
1672 #define V4L2_MPEG_VBI_IVTV_MAGIC1	"ITV0"
1673 
1674 struct v4l2_mpeg_vbi_fmt_ivtv {
1675 	__u8 magic[4];
1676 	union {
1677 		struct v4l2_mpeg_vbi_itv0 itv0;
1678 		struct v4l2_mpeg_vbi_ITV0 ITV0;
1679 	};
1680 } __attribute__ ((packed));
1681 
1682 /*
1683  *	A G G R E G A T E   S T R U C T U R E S
1684  */
1685 
1686 /**
1687  * struct v4l2_plane_pix_format - additional, per-plane format definition
1688  * @sizeimage:		maximum size in bytes required for data, for which
1689  *			this plane will be used
1690  * @bytesperline:	distance in bytes between the leftmost pixels in two
1691  *			adjacent lines
1692  */
1693 struct v4l2_plane_pix_format {
1694 	__u32		sizeimage;
1695 	__u16		bytesperline;
1696 	__u16		reserved[7];
1697 } __attribute__ ((packed));
1698 
1699 /**
1700  * struct v4l2_pix_format_mplane - multiplanar format definition
1701  * @width:		image width in pixels
1702  * @height:		image height in pixels
1703  * @pixelformat:	little endian four character code (fourcc)
1704  * @field:		enum v4l2_field; field order (for interlaced video)
1705  * @colorspace:		enum v4l2_colorspace; supplemental to pixelformat
1706  * @plane_fmt:		per-plane information
1707  * @num_planes:		number of planes for this format
1708  */
1709 struct v4l2_pix_format_mplane {
1710 	__u32				width;
1711 	__u32				height;
1712 	__u32				pixelformat;
1713 	__u32				field;
1714 	__u32				colorspace;
1715 
1716 	struct v4l2_plane_pix_format	plane_fmt[VIDEO_MAX_PLANES];
1717 	__u8				num_planes;
1718 	__u8				reserved[11];
1719 } __attribute__ ((packed));
1720 
1721 /**
1722  * struct v4l2_sdr_format - SDR format definition
1723  * @pixelformat:	little endian four character code (fourcc)
1724  */
1725 struct v4l2_sdr_format {
1726 	__u32				pixelformat;
1727 	__u8				reserved[28];
1728 } __attribute__ ((packed));
1729 
1730 /**
1731  * struct v4l2_format - stream data format
1732  * @type:	enum v4l2_buf_type; type of the data stream
1733  * @pix:	definition of an image format
1734  * @pix_mp:	definition of a multiplanar image format
1735  * @win:	definition of an overlaid image
1736  * @vbi:	raw VBI capture or output parameters
1737  * @sliced:	sliced VBI capture or output parameters
1738  * @raw_data:	placeholder for future extensions and custom formats
1739  */
1740 struct v4l2_format {
1741 	__u32	 type;
1742 	union {
1743 		struct v4l2_pix_format		pix;     /* V4L2_BUF_TYPE_VIDEO_CAPTURE */
1744 		struct v4l2_pix_format_mplane	pix_mp;  /* V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE */
1745 		struct v4l2_window		win;     /* V4L2_BUF_TYPE_VIDEO_OVERLAY */
1746 		struct v4l2_vbi_format		vbi;     /* V4L2_BUF_TYPE_VBI_CAPTURE */
1747 		struct v4l2_sliced_vbi_format	sliced;  /* V4L2_BUF_TYPE_SLICED_VBI_CAPTURE */
1748 		struct v4l2_sdr_format		sdr;     /* V4L2_BUF_TYPE_SDR_CAPTURE */
1749 		__u8	raw_data[200];                   /* user-defined */
1750 	} fmt;
1751 };
1752 
1753 /*	Stream type-dependent parameters
1754  */
1755 struct v4l2_streamparm {
1756 	__u32	 type;			/* enum v4l2_buf_type */
1757 	union {
1758 		struct v4l2_captureparm	capture;
1759 		struct v4l2_outputparm	output;
1760 		__u8	raw_data[200];  /* user-defined */
1761 	} parm;
1762 };
1763 
1764 /*
1765  *	E V E N T S
1766  */
1767 
1768 #define V4L2_EVENT_ALL				0
1769 #define V4L2_EVENT_VSYNC			1
1770 #define V4L2_EVENT_EOS				2
1771 #define V4L2_EVENT_CTRL				3
1772 #define V4L2_EVENT_FRAME_SYNC			4
1773 #define V4L2_EVENT_SOURCE_CHANGE		5
1774 #define V4L2_EVENT_PRIVATE_START		0x08000000
1775 
1776 /* Payload for V4L2_EVENT_VSYNC */
1777 struct v4l2_event_vsync {
1778 	/* Can be V4L2_FIELD_ANY, _NONE, _TOP or _BOTTOM */
1779 	__u8 field;
1780 } __attribute__ ((packed));
1781 
1782 /* Payload for V4L2_EVENT_CTRL */
1783 #define V4L2_EVENT_CTRL_CH_VALUE		(1 << 0)
1784 #define V4L2_EVENT_CTRL_CH_FLAGS		(1 << 1)
1785 #define V4L2_EVENT_CTRL_CH_RANGE		(1 << 2)
1786 
1787 struct v4l2_event_ctrl {
1788 	__u32 changes;
1789 	__u32 type;
1790 	union {
1791 		__s32 value;
1792 		__s64 value64;
1793 	};
1794 	__u32 flags;
1795 	__s32 minimum;
1796 	__s32 maximum;
1797 	__s32 step;
1798 	__s32 default_value;
1799 };
1800 
1801 struct v4l2_event_frame_sync {
1802 	__u32 frame_sequence;
1803 };
1804 
1805 #define V4L2_EVENT_SRC_CH_RESOLUTION		(1 << 0)
1806 
1807 struct v4l2_event_src_change {
1808 	__u32 changes;
1809 };
1810 
1811 struct v4l2_event {
1812 	__u32				type;
1813 	union {
1814 		struct v4l2_event_vsync		vsync;
1815 		struct v4l2_event_ctrl		ctrl;
1816 		struct v4l2_event_frame_sync	frame_sync;
1817 		struct v4l2_event_src_change	src_change;
1818 		__u8				data[64];
1819 	} u;
1820 	__u32				pending;
1821 	__u32				sequence;
1822 	struct timespec			timestamp;
1823 	__u32				id;
1824 	__u32				reserved[8];
1825 };
1826 
1827 #define V4L2_EVENT_SUB_FL_SEND_INITIAL		(1 << 0)
1828 #define V4L2_EVENT_SUB_FL_ALLOW_FEEDBACK	(1 << 1)
1829 
1830 struct v4l2_event_subscription {
1831 	__u32				type;
1832 	__u32				id;
1833 	__u32				flags;
1834 	__u32				reserved[5];
1835 };
1836 
1837 /*
1838  *	A D V A N C E D   D E B U G G I N G
1839  *
1840  *	NOTE: EXPERIMENTAL API, NEVER RELY ON THIS IN APPLICATIONS!
1841  *	FOR DEBUGGING, TESTING AND INTERNAL USE ONLY!
1842  */
1843 
1844 /* VIDIOC_DBG_G_REGISTER and VIDIOC_DBG_S_REGISTER */
1845 
1846 #define V4L2_CHIP_MATCH_BRIDGE      0  /* Match against chip ID on the bridge (0 for the bridge) */
1847 #define V4L2_CHIP_MATCH_SUBDEV      4  /* Match against subdev index */
1848 
1849 /* The following four defines are no longer in use */
1850 #define V4L2_CHIP_MATCH_HOST V4L2_CHIP_MATCH_BRIDGE
1851 #define V4L2_CHIP_MATCH_I2C_DRIVER  1  /* Match against I2C driver name */
1852 #define V4L2_CHIP_MATCH_I2C_ADDR    2  /* Match against I2C 7-bit address */
1853 #define V4L2_CHIP_MATCH_AC97        3  /* Match against ancillary AC97 chip */
1854 
1855 struct v4l2_dbg_match {
1856 	__u32 type; /* Match type */
1857 	union {     /* Match this chip, meaning determined by type */
1858 		__u32 addr;
1859 		char name[32];
1860 	};
1861 } __attribute__ ((packed));
1862 
1863 struct v4l2_dbg_register {
1864 	struct v4l2_dbg_match match;
1865 	__u32 size;	/* register size in bytes */
1866 	__u64 reg;
1867 	__u64 val;
1868 } __attribute__ ((packed));
1869 
1870 #define V4L2_CHIP_FL_READABLE (1 << 0)
1871 #define V4L2_CHIP_FL_WRITABLE (1 << 1)
1872 
1873 /* VIDIOC_DBG_G_CHIP_INFO */
1874 struct v4l2_dbg_chip_info {
1875 	struct v4l2_dbg_match match;
1876 	char name[32];
1877 	__u32 flags;
1878 	__u32 reserved[32];
1879 } __attribute__ ((packed));
1880 
1881 /**
1882  * struct v4l2_create_buffers - VIDIOC_CREATE_BUFS argument
1883  * @index:	on return, index of the first created buffer
1884  * @count:	entry: number of requested buffers,
1885  *		return: number of created buffers
1886  * @memory:	enum v4l2_memory; buffer memory type
1887  * @format:	frame format, for which buffers are requested
1888  * @reserved:	future extensions
1889  */
1890 struct v4l2_create_buffers {
1891 	__u32			index;
1892 	__u32			count;
1893 	__u32			memory;
1894 	struct v4l2_format	format;
1895 	__u32			reserved[8];
1896 };
1897 
1898 /*
1899  *	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
1900  *
1901  */
1902 #define VIDIOC_QUERYCAP		 _IOR('V',  0, struct v4l2_capability)
1903 #define VIDIOC_RESERVED		  _IO('V',  1)
1904 #define VIDIOC_ENUM_FMT         _IOWR('V',  2, struct v4l2_fmtdesc)
1905 #define VIDIOC_G_FMT		_IOWR('V',  4, struct v4l2_format)
1906 #define VIDIOC_S_FMT		_IOWR('V',  5, struct v4l2_format)
1907 #define VIDIOC_REQBUFS		_IOWR('V',  8, struct v4l2_requestbuffers)
1908 #define VIDIOC_QUERYBUF		_IOWR('V',  9, struct v4l2_buffer)
1909 #define VIDIOC_G_FBUF		 _IOR('V', 10, struct v4l2_framebuffer)
1910 #define VIDIOC_S_FBUF		 _IOW('V', 11, struct v4l2_framebuffer)
1911 #define VIDIOC_OVERLAY		 _IOW('V', 14, int)
1912 #define VIDIOC_QBUF		_IOWR('V', 15, struct v4l2_buffer)
1913 #define VIDIOC_EXPBUF		_IOWR('V', 16, struct v4l2_exportbuffer)
1914 #define VIDIOC_DQBUF		_IOWR('V', 17, struct v4l2_buffer)
1915 #define VIDIOC_STREAMON		 _IOW('V', 18, int)
1916 #define VIDIOC_STREAMOFF	 _IOW('V', 19, int)
1917 #define VIDIOC_G_PARM		_IOWR('V', 21, struct v4l2_streamparm)
1918 #define VIDIOC_S_PARM		_IOWR('V', 22, struct v4l2_streamparm)
1919 #define VIDIOC_G_STD		 _IOR('V', 23, v4l2_std_id)
1920 #define VIDIOC_S_STD		 _IOW('V', 24, v4l2_std_id)
1921 #define VIDIOC_ENUMSTD		_IOWR('V', 25, struct v4l2_standard)
1922 #define VIDIOC_ENUMINPUT	_IOWR('V', 26, struct v4l2_input)
1923 #define VIDIOC_G_CTRL		_IOWR('V', 27, struct v4l2_control)
1924 #define VIDIOC_S_CTRL		_IOWR('V', 28, struct v4l2_control)
1925 #define VIDIOC_G_TUNER		_IOWR('V', 29, struct v4l2_tuner)
1926 #define VIDIOC_S_TUNER		 _IOW('V', 30, struct v4l2_tuner)
1927 #define VIDIOC_G_AUDIO		 _IOR('V', 33, struct v4l2_audio)
1928 #define VIDIOC_S_AUDIO		 _IOW('V', 34, struct v4l2_audio)
1929 #define VIDIOC_QUERYCTRL	_IOWR('V', 36, struct v4l2_queryctrl)
1930 #define VIDIOC_QUERYMENU	_IOWR('V', 37, struct v4l2_querymenu)
1931 #define VIDIOC_G_INPUT		 _IOR('V', 38, int)
1932 #define VIDIOC_S_INPUT		_IOWR('V', 39, int)
1933 #define VIDIOC_G_EDID		_IOWR('V', 40, struct v4l2_edid)
1934 #define VIDIOC_S_EDID		_IOWR('V', 41, struct v4l2_edid)
1935 #define VIDIOC_G_OUTPUT		 _IOR('V', 46, int)
1936 #define VIDIOC_S_OUTPUT		_IOWR('V', 47, int)
1937 #define VIDIOC_ENUMOUTPUT	_IOWR('V', 48, struct v4l2_output)
1938 #define VIDIOC_G_AUDOUT		 _IOR('V', 49, struct v4l2_audioout)
1939 #define VIDIOC_S_AUDOUT		 _IOW('V', 50, struct v4l2_audioout)
1940 #define VIDIOC_G_MODULATOR	_IOWR('V', 54, struct v4l2_modulator)
1941 #define VIDIOC_S_MODULATOR	 _IOW('V', 55, struct v4l2_modulator)
1942 #define VIDIOC_G_FREQUENCY	_IOWR('V', 56, struct v4l2_frequency)
1943 #define VIDIOC_S_FREQUENCY	 _IOW('V', 57, struct v4l2_frequency)
1944 #define VIDIOC_CROPCAP		_IOWR('V', 58, struct v4l2_cropcap)
1945 #define VIDIOC_G_CROP		_IOWR('V', 59, struct v4l2_crop)
1946 #define VIDIOC_S_CROP		 _IOW('V', 60, struct v4l2_crop)
1947 #define VIDIOC_G_JPEGCOMP	 _IOR('V', 61, struct v4l2_jpegcompression)
1948 #define VIDIOC_S_JPEGCOMP	 _IOW('V', 62, struct v4l2_jpegcompression)
1949 #define VIDIOC_QUERYSTD      	 _IOR('V', 63, v4l2_std_id)
1950 #define VIDIOC_TRY_FMT      	_IOWR('V', 64, struct v4l2_format)
1951 #define VIDIOC_ENUMAUDIO	_IOWR('V', 65, struct v4l2_audio)
1952 #define VIDIOC_ENUMAUDOUT	_IOWR('V', 66, struct v4l2_audioout)
1953 #define VIDIOC_G_PRIORITY	 _IOR('V', 67, __u32) /* enum v4l2_priority */
1954 #define VIDIOC_S_PRIORITY	 _IOW('V', 68, __u32) /* enum v4l2_priority */
1955 #define VIDIOC_G_SLICED_VBI_CAP _IOWR('V', 69, struct v4l2_sliced_vbi_cap)
1956 #define VIDIOC_LOG_STATUS         _IO('V', 70)
1957 #define VIDIOC_G_EXT_CTRLS	_IOWR('V', 71, struct v4l2_ext_controls)
1958 #define VIDIOC_S_EXT_CTRLS	_IOWR('V', 72, struct v4l2_ext_controls)
1959 #define VIDIOC_TRY_EXT_CTRLS	_IOWR('V', 73, struct v4l2_ext_controls)
1960 #define VIDIOC_ENUM_FRAMESIZES	_IOWR('V', 74, struct v4l2_frmsizeenum)
1961 #define VIDIOC_ENUM_FRAMEINTERVALS _IOWR('V', 75, struct v4l2_frmivalenum)
1962 #define VIDIOC_G_ENC_INDEX       _IOR('V', 76, struct v4l2_enc_idx)
1963 #define VIDIOC_ENCODER_CMD      _IOWR('V', 77, struct v4l2_encoder_cmd)
1964 #define VIDIOC_TRY_ENCODER_CMD  _IOWR('V', 78, struct v4l2_encoder_cmd)
1965 
1966 /* Experimental, meant for debugging, testing and internal use.
1967    Only implemented if CONFIG_VIDEO_ADV_DEBUG is defined.
1968    You must be root to use these ioctls. Never use these in applications! */
1969 #define	VIDIOC_DBG_S_REGISTER 	 _IOW('V', 79, struct v4l2_dbg_register)
1970 #define	VIDIOC_DBG_G_REGISTER 	_IOWR('V', 80, struct v4l2_dbg_register)
1971 
1972 #define VIDIOC_S_HW_FREQ_SEEK	 _IOW('V', 82, struct v4l2_hw_freq_seek)
1973 
1974 #define	VIDIOC_S_DV_TIMINGS	_IOWR('V', 87, struct v4l2_dv_timings)
1975 #define	VIDIOC_G_DV_TIMINGS	_IOWR('V', 88, struct v4l2_dv_timings)
1976 #define	VIDIOC_DQEVENT		 _IOR('V', 89, struct v4l2_event)
1977 #define	VIDIOC_SUBSCRIBE_EVENT	 _IOW('V', 90, struct v4l2_event_subscription)
1978 #define	VIDIOC_UNSUBSCRIBE_EVENT _IOW('V', 91, struct v4l2_event_subscription)
1979 
1980 /* Experimental, the below two ioctls may change over the next couple of kernel
1981    versions */
1982 #define VIDIOC_CREATE_BUFS	_IOWR('V', 92, struct v4l2_create_buffers)
1983 #define VIDIOC_PREPARE_BUF	_IOWR('V', 93, struct v4l2_buffer)
1984 
1985 /* Experimental selection API */
1986 #define VIDIOC_G_SELECTION	_IOWR('V', 94, struct v4l2_selection)
1987 #define VIDIOC_S_SELECTION	_IOWR('V', 95, struct v4l2_selection)
1988 
1989 /* Experimental, these two ioctls may change over the next couple of kernel
1990    versions. */
1991 #define VIDIOC_DECODER_CMD	_IOWR('V', 96, struct v4l2_decoder_cmd)
1992 #define VIDIOC_TRY_DECODER_CMD	_IOWR('V', 97, struct v4l2_decoder_cmd)
1993 
1994 /* Experimental, these three ioctls may change over the next couple of kernel
1995    versions. */
1996 #define VIDIOC_ENUM_DV_TIMINGS  _IOWR('V', 98, struct v4l2_enum_dv_timings)
1997 #define VIDIOC_QUERY_DV_TIMINGS  _IOR('V', 99, struct v4l2_dv_timings)
1998 #define VIDIOC_DV_TIMINGS_CAP   _IOWR('V', 100, struct v4l2_dv_timings_cap)
1999 
2000 /* Experimental, this ioctl may change over the next couple of kernel
2001    versions. */
2002 #define VIDIOC_ENUM_FREQ_BANDS	_IOWR('V', 101, struct v4l2_frequency_band)
2003 
2004 /* Experimental, meant for debugging, testing and internal use.
2005    Never use these in applications! */
2006 #define VIDIOC_DBG_G_CHIP_INFO  _IOWR('V', 102, struct v4l2_dbg_chip_info)
2007 
2008 /* Reminder: when adding new ioctls please add support for them to
2009    drivers/media/video/v4l2-compat-ioctl32.c as well! */
2010 
2011 #define BASE_VIDIOC_PRIVATE	192		/* 192-255 are private */
2012 
2013 #endif /* _UAPI__LINUX_VIDEODEV2_H */
2014