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

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  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 https://linuxtv.org for more info
 50  *
 51  *      Author: Bill Dirks <bill@thedirks.org>
 52  *              Justin Schoeman
 53  *              Hans Verkuil <hverkuil@xs4all.nl>
 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 #define v4l2_fourcc_be(a, b, c, d)      (v4l2_fourcc(a, b, c, d) | (1 << 31))
 83 
 84 /*
 85  *      E N U M S
 86  */
 87 enum v4l2_field {
 88         V4L2_FIELD_ANY           = 0, /* driver can choose from none,
 89                                          top, bottom, interlaced
 90                                          depending on whatever it thinks
 91                                          is approximate ... */
 92         V4L2_FIELD_NONE          = 1, /* this device has no fields ... */
 93         V4L2_FIELD_TOP           = 2, /* top field only */
 94         V4L2_FIELD_BOTTOM        = 3, /* bottom field only */
 95         V4L2_FIELD_INTERLACED    = 4, /* both fields interlaced */
 96         V4L2_FIELD_SEQ_TB        = 5, /* both fields sequential into one
 97                                          buffer, top-bottom order */
 98         V4L2_FIELD_SEQ_BT        = 6, /* same as above + bottom-top order */
 99         V4L2_FIELD_ALTERNATE     = 7, /* both fields alternating into
100                                          separate buffers */
101         V4L2_FIELD_INTERLACED_TB = 8, /* both fields interlaced, top field
102                                          first and the top field is
103                                          transmitted first */
104         V4L2_FIELD_INTERLACED_BT = 9, /* both fields interlaced, top field
105                                          first and the bottom field is
106                                          transmitted first */
107 };
108 #define V4L2_FIELD_HAS_TOP(field)       \
109         ((field) == V4L2_FIELD_TOP      ||\
110          (field) == V4L2_FIELD_INTERLACED ||\
111          (field) == V4L2_FIELD_INTERLACED_TB ||\
112          (field) == V4L2_FIELD_INTERLACED_BT ||\
113          (field) == V4L2_FIELD_SEQ_TB   ||\
114          (field) == V4L2_FIELD_SEQ_BT)
115 #define V4L2_FIELD_HAS_BOTTOM(field)    \
116         ((field) == V4L2_FIELD_BOTTOM   ||\
117          (field) == V4L2_FIELD_INTERLACED ||\
118          (field) == V4L2_FIELD_INTERLACED_TB ||\
119          (field) == V4L2_FIELD_INTERLACED_BT ||\
120          (field) == V4L2_FIELD_SEQ_TB   ||\
121          (field) == V4L2_FIELD_SEQ_BT)
122 #define V4L2_FIELD_HAS_BOTH(field)      \
123         ((field) == V4L2_FIELD_INTERLACED ||\
124          (field) == V4L2_FIELD_INTERLACED_TB ||\
125          (field) == V4L2_FIELD_INTERLACED_BT ||\
126          (field) == V4L2_FIELD_SEQ_TB ||\
127          (field) == V4L2_FIELD_SEQ_BT)
128 #define V4L2_FIELD_HAS_T_OR_B(field)    \
129         ((field) == V4L2_FIELD_BOTTOM ||\
130          (field) == V4L2_FIELD_TOP ||\
131          (field) == V4L2_FIELD_ALTERNATE)
132 
133 enum v4l2_buf_type {
134         V4L2_BUF_TYPE_VIDEO_CAPTURE        = 1,
135         V4L2_BUF_TYPE_VIDEO_OUTPUT         = 2,
136         V4L2_BUF_TYPE_VIDEO_OVERLAY        = 3,
137         V4L2_BUF_TYPE_VBI_CAPTURE          = 4,
138         V4L2_BUF_TYPE_VBI_OUTPUT           = 5,
139         V4L2_BUF_TYPE_SLICED_VBI_CAPTURE   = 6,
140         V4L2_BUF_TYPE_SLICED_VBI_OUTPUT    = 7,
141 #if 1
142         /* Experimental */
143         V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY = 8,
144 #endif
145         V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE = 9,
146         V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE  = 10,
147         V4L2_BUF_TYPE_SDR_CAPTURE          = 11,
148         V4L2_BUF_TYPE_SDR_OUTPUT           = 12,
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         /* AdobeRGB colorspace */
230         V4L2_COLORSPACE_ADOBERGB      = 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_ADOBERGB: V4L2_XFER_FUNC_ADOBERGB
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_ADOBERGB    = 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_ADOBERGB ? V4L2_XFER_FUNC_ADOBERGB : \
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_ADOBERGB and
299          * 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_SRGB: V4L2_YCBCR_ENC_SYCC
304          *
305          * V4L2_COLORSPACE_BT2020: V4L2_YCBCR_ENC_BT2020
306          *
307          * V4L2_COLORSPACE_SMPTE240M: V4L2_YCBCR_ENC_SMPTE240M
308          */
309         V4L2_YCBCR_ENC_DEFAULT        = 0,
310 
311         /* ITU-R 601 -- SDTV */
312         V4L2_YCBCR_ENC_601            = 1,
313 
314         /* Rec. 709 -- HDTV */
315         V4L2_YCBCR_ENC_709            = 2,
316 
317         /* ITU-R 601/EN 61966-2-4 Extended Gamut -- SDTV */
318         V4L2_YCBCR_ENC_XV601          = 3,
319 
320         /* Rec. 709/EN 61966-2-4 Extended Gamut -- HDTV */
321         V4L2_YCBCR_ENC_XV709          = 4,
322 
323         /* sYCC (Y'CbCr encoding of sRGB) */
324         V4L2_YCBCR_ENC_SYCC           = 5,
325 
326         /* BT.2020 Non-constant Luminance Y'CbCr */
327         V4L2_YCBCR_ENC_BT2020         = 6,
328 
329         /* BT.2020 Constant Luminance Y'CbcCrc */
330         V4L2_YCBCR_ENC_BT2020_CONST_LUM = 7,
331 
332         /* SMPTE 240M -- Obsolete HDTV */
333         V4L2_YCBCR_ENC_SMPTE240M      = 8,
334 };
335 
336 /*
337  * Determine how YCBCR_ENC_DEFAULT should map to a proper Y'CbCr encoding.
338  * This depends on the colorspace.
339  */
340 #define V4L2_MAP_YCBCR_ENC_DEFAULT(colsp) \
341         (((colsp) == V4L2_COLORSPACE_REC709 || \
342           (colsp) == V4L2_COLORSPACE_DCI_P3) ? V4L2_YCBCR_ENC_709 : \
343          ((colsp) == V4L2_COLORSPACE_BT2020 ? V4L2_YCBCR_ENC_BT2020 : \
344           ((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_YCBCR_ENC_SMPTE240M : \
345            V4L2_YCBCR_ENC_601)))
346 
347 enum v4l2_quantization {
348         /*
349          * The default for R'G'B' quantization is always full range, except
350          * for the BT2020 colorspace. For Y'CbCr the quantization is always
351          * limited range, except for COLORSPACE_JPEG, SYCC, XV601 or XV709:
352          * those are full range.
353          */
354         V4L2_QUANTIZATION_DEFAULT     = 0,
355         V4L2_QUANTIZATION_FULL_RANGE  = 1,
356         V4L2_QUANTIZATION_LIM_RANGE   = 2,
357 };
358 
359 /*
360  * Determine how QUANTIZATION_DEFAULT should map to a proper quantization.
361  * This depends on whether the image is RGB or not, the colorspace and the
362  * Y'CbCr encoding.
363  */
364 #define V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb, colsp, ycbcr_enc) \
365         (((is_rgb) && (colsp) == V4L2_COLORSPACE_BT2020) ? V4L2_QUANTIZATION_LIM_RANGE : \
366          (((is_rgb) || (ycbcr_enc) == V4L2_YCBCR_ENC_XV601 || \
367           (ycbcr_enc) == V4L2_YCBCR_ENC_XV709 || (colsp) == V4L2_COLORSPACE_JPEG) ? \
368          V4L2_QUANTIZATION_FULL_RANGE : V4L2_QUANTIZATION_LIM_RANGE))
369 
370 enum v4l2_priority {
371         V4L2_PRIORITY_UNSET       = 0,  /* not initialized */
372         V4L2_PRIORITY_BACKGROUND  = 1,
373         V4L2_PRIORITY_INTERACTIVE = 2,
374         V4L2_PRIORITY_RECORD      = 3,
375         V4L2_PRIORITY_DEFAULT     = V4L2_PRIORITY_INTERACTIVE,
376 };
377 
378 struct v4l2_rect {
379         __s32   left;
380         __s32   top;
381         __u32   width;
382         __u32   height;
383 };
384 
385 struct v4l2_fract {
386         __u32   numerator;
387         __u32   denominator;
388 };
389 
390 /**
391   * struct v4l2_capability - Describes V4L2 device caps returned by VIDIOC_QUERYCAP
392   *
393   * @driver:       name of the driver module (e.g. "bttv")
394   * @card:         name of the card (e.g. "Hauppauge WinTV")
395   * @bus_info:     name of the bus (e.g. "PCI:" + pci_name(pci_dev) )
396   * @version:      KERNEL_VERSION
397   * @capabilities: capabilities of the physical device as a whole
398   * @device_caps:  capabilities accessed via this particular device (node)
399   * @reserved:     reserved fields for future extensions
400   */
401 struct v4l2_capability {
402         __u8    driver[16];
403         __u8    card[32];
404         __u8    bus_info[32];
405         __u32   version;
406         __u32   capabilities;
407         __u32   device_caps;
408         __u32   reserved[3];
409 };
410 
411 /* Values for 'capabilities' field */
412 #define V4L2_CAP_VIDEO_CAPTURE          0x00000001  /* Is a video capture device */
413 #define V4L2_CAP_VIDEO_OUTPUT           0x00000002  /* Is a video output device */
414 #define V4L2_CAP_VIDEO_OVERLAY          0x00000004  /* Can do video overlay */
415 #define V4L2_CAP_VBI_CAPTURE            0x00000010  /* Is a raw VBI capture device */
416 #define V4L2_CAP_VBI_OUTPUT             0x00000020  /* Is a raw VBI output device */
417 #define V4L2_CAP_SLICED_VBI_CAPTURE     0x00000040  /* Is a sliced VBI capture device */
418 #define V4L2_CAP_SLICED_VBI_OUTPUT      0x00000080  /* Is a sliced VBI output device */
419 #define V4L2_CAP_RDS_CAPTURE            0x00000100  /* RDS data capture */
420 #define V4L2_CAP_VIDEO_OUTPUT_OVERLAY   0x00000200  /* Can do video output overlay */
421 #define V4L2_CAP_HW_FREQ_SEEK           0x00000400  /* Can do hardware frequency seek  */
422 #define V4L2_CAP_RDS_OUTPUT             0x00000800  /* Is an RDS encoder */
423 
424 /* Is a video capture device that supports multiplanar formats */
425 #define V4L2_CAP_VIDEO_CAPTURE_MPLANE   0x00001000
426 /* Is a video output device that supports multiplanar formats */
427 #define V4L2_CAP_VIDEO_OUTPUT_MPLANE    0x00002000
428 /* Is a video mem-to-mem device that supports multiplanar formats */
429 #define V4L2_CAP_VIDEO_M2M_MPLANE       0x00004000
430 /* Is a video mem-to-mem device */
431 #define V4L2_CAP_VIDEO_M2M              0x00008000
432 
433 #define V4L2_CAP_TUNER                  0x00010000  /* has a tuner */
434 #define V4L2_CAP_AUDIO                  0x00020000  /* has audio support */
435 #define V4L2_CAP_RADIO                  0x00040000  /* is a radio device */
436 #define V4L2_CAP_MODULATOR              0x00080000  /* has a modulator */
437 
438 #define V4L2_CAP_SDR_CAPTURE            0x00100000  /* Is a SDR capture device */
439 #define V4L2_CAP_EXT_PIX_FORMAT         0x00200000  /* Supports the extended pixel format */
440 #define V4L2_CAP_SDR_OUTPUT             0x00400000  /* Is a SDR output device */
441 
442 #define V4L2_CAP_READWRITE              0x01000000  /* read/write systemcalls */
443 #define V4L2_CAP_ASYNCIO                0x02000000  /* async I/O */
444 #define V4L2_CAP_STREAMING              0x04000000  /* streaming I/O ioctls */
445 
446 #define V4L2_CAP_DEVICE_CAPS            0x80000000  /* sets device capabilities field */
447 
448 /*
449  *      V I D E O   I M A G E   F O R M A T
450  */
451 struct v4l2_pix_format {
452         __u32                   width;
453         __u32                   height;
454         __u32                   pixelformat;
455         __u32                   field;          /* enum v4l2_field */
456         __u32                   bytesperline;   /* for padding, zero if unused */
457         __u32                   sizeimage;
458         __u32                   colorspace;     /* enum v4l2_colorspace */
459         __u32                   priv;           /* private data, depends on pixelformat */
460         __u32                   flags;          /* format flags (V4L2_PIX_FMT_FLAG_*) */
461         __u32                   ycbcr_enc;      /* enum v4l2_ycbcr_encoding */
462         __u32                   quantization;   /* enum v4l2_quantization */
463         __u32                   xfer_func;      /* enum v4l2_xfer_func */
464 };
465 
466 /*      Pixel format         FOURCC                          depth  Description  */
467 
468 /* RGB formats */
469 #define V4L2_PIX_FMT_RGB332  v4l2_fourcc('R', 'G', 'B', '1') /*  8  RGB-3-3-2     */
470 #define V4L2_PIX_FMT_RGB444  v4l2_fourcc('R', '4', '4', '4') /* 16  xxxxrrrr ggggbbbb */
471 #define V4L2_PIX_FMT_ARGB444 v4l2_fourcc('A', 'R', '1', '2') /* 16  aaaarrrr ggggbbbb */
472 #define V4L2_PIX_FMT_XRGB444 v4l2_fourcc('X', 'R', '1', '2') /* 16  xxxxrrrr ggggbbbb */
473 #define V4L2_PIX_FMT_RGB555  v4l2_fourcc('R', 'G', 'B', 'O') /* 16  RGB-5-5-5     */
474 #define V4L2_PIX_FMT_ARGB555 v4l2_fourcc('A', 'R', '1', '5') /* 16  ARGB-1-5-5-5  */
475 #define V4L2_PIX_FMT_XRGB555 v4l2_fourcc('X', 'R', '1', '5') /* 16  XRGB-1-5-5-5  */
476 #define V4L2_PIX_FMT_RGB565  v4l2_fourcc('R', 'G', 'B', 'P') /* 16  RGB-5-6-5     */
477 #define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R', 'G', 'B', 'Q') /* 16  RGB-5-5-5 BE  */
478 #define V4L2_PIX_FMT_ARGB555X v4l2_fourcc_be('A', 'R', '1', '5') /* 16  ARGB-5-5-5 BE */
479 #define V4L2_PIX_FMT_XRGB555X v4l2_fourcc_be('X', 'R', '1', '5') /* 16  XRGB-5-5-5 BE */
480 #define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R', 'G', 'B', 'R') /* 16  RGB-5-6-5 BE  */
481 #define V4L2_PIX_FMT_BGR666  v4l2_fourcc('B', 'G', 'R', 'H') /* 18  BGR-6-6-6     */
482 #define V4L2_PIX_FMT_BGR24   v4l2_fourcc('B', 'G', 'R', '3') /* 24  BGR-8-8-8     */
483 #define V4L2_PIX_FMT_RGB24   v4l2_fourcc('R', 'G', 'B', '3') /* 24  RGB-8-8-8     */
484 #define V4L2_PIX_FMT_BGR32   v4l2_fourcc('B', 'G', 'R', '4') /* 32  BGR-8-8-8-8   */
485 #define V4L2_PIX_FMT_ABGR32  v4l2_fourcc('A', 'R', '2', '4') /* 32  BGRA-8-8-8-8  */
486 #define V4L2_PIX_FMT_XBGR32  v4l2_fourcc('X', 'R', '2', '4') /* 32  BGRX-8-8-8-8  */
487 #define V4L2_PIX_FMT_RGB32   v4l2_fourcc('R', 'G', 'B', '4') /* 32  RGB-8-8-8-8   */
488 #define V4L2_PIX_FMT_ARGB32  v4l2_fourcc('B', 'A', '2', '4') /* 32  ARGB-8-8-8-8  */
489 #define V4L2_PIX_FMT_XRGB32  v4l2_fourcc('B', 'X', '2', '4') /* 32  XRGB-8-8-8-8  */
490 
491 /* Grey formats */
492 #define V4L2_PIX_FMT_GREY    v4l2_fourcc('G', 'R', 'E', 'Y') /*  8  Greyscale     */
493 #define V4L2_PIX_FMT_Y4      v4l2_fourcc('Y', '', '4', ' ') /*  4  Greyscale     */
494 #define V4L2_PIX_FMT_Y6      v4l2_fourcc('Y', '', '6', ' ') /*  6  Greyscale     */
495 #define V4L2_PIX_FMT_Y10     v4l2_fourcc('Y', '1', '', ' ') /* 10  Greyscale     */
496 #define V4L2_PIX_FMT_Y12     v4l2_fourcc('Y', '1', '2', ' ') /* 12  Greyscale     */
497 #define V4L2_PIX_FMT_Y16     v4l2_fourcc('Y', '1', '6', ' ') /* 16  Greyscale     */
498 #define V4L2_PIX_FMT_Y16_BE  v4l2_fourcc_be('Y', '1', '6', ' ') /* 16  Greyscale BE  */
499 
500 /* Grey bit-packed formats */
501 #define V4L2_PIX_FMT_Y10BPACK    v4l2_fourcc('Y', '1', '', 'B') /* 10  Greyscale bit-packed */
502 
503 /* Palette formats */
504 #define V4L2_PIX_FMT_PAL8    v4l2_fourcc('P', 'A', 'L', '8') /*  8  8-bit palette */
505 
506 /* Chrominance formats */
507 #define V4L2_PIX_FMT_UV8     v4l2_fourcc('U', 'V', '8', ' ') /*  8  UV 4:4 */
508 
509 /* Luminance+Chrominance formats */
510 #define V4L2_PIX_FMT_YVU410  v4l2_fourcc('Y', 'V', 'U', '9') /*  9  YVU 4:1:0     */
511 #define V4L2_PIX_FMT_YVU420  v4l2_fourcc('Y', 'V', '1', '2') /* 12  YVU 4:2:0     */
512 #define V4L2_PIX_FMT_YUYV    v4l2_fourcc('Y', 'U', 'Y', 'V') /* 16  YUV 4:2:2     */
513 #define V4L2_PIX_FMT_YYUV    v4l2_fourcc('Y', 'Y', 'U', 'V') /* 16  YUV 4:2:2     */
514 #define V4L2_PIX_FMT_YVYU    v4l2_fourcc('Y', 'V', 'Y', 'U') /* 16 YVU 4:2:2 */
515 #define V4L2_PIX_FMT_UYVY    v4l2_fourcc('U', 'Y', 'V', 'Y') /* 16  YUV 4:2:2     */
516 #define V4L2_PIX_FMT_VYUY    v4l2_fourcc('V', 'Y', 'U', 'Y') /* 16  YUV 4:2:2     */
517 #define V4L2_PIX_FMT_YUV422P v4l2_fourcc('4', '2', '2', 'P') /* 16  YVU422 planar */
518 #define V4L2_PIX_FMT_YUV411P v4l2_fourcc('4', '1', '1', 'P') /* 16  YVU411 planar */
519 #define V4L2_PIX_FMT_Y41P    v4l2_fourcc('Y', '4', '1', 'P') /* 12  YUV 4:1:1     */
520 #define V4L2_PIX_FMT_YUV444  v4l2_fourcc('Y', '4', '4', '4') /* 16  xxxxyyyy uuuuvvvv */
521 #define V4L2_PIX_FMT_YUV555  v4l2_fourcc('Y', 'U', 'V', 'O') /* 16  YUV-5-5-5     */
522 #define V4L2_PIX_FMT_YUV565  v4l2_fourcc('Y', 'U', 'V', 'P') /* 16  YUV-5-6-5     */
523 #define V4L2_PIX_FMT_YUV32   v4l2_fourcc('Y', 'U', 'V', '4') /* 32  YUV-8-8-8-8   */
524 #define V4L2_PIX_FMT_YUV410  v4l2_fourcc('Y', 'U', 'V', '9') /*  9  YUV 4:1:0     */
525 #define V4L2_PIX_FMT_YUV420  v4l2_fourcc('Y', 'U', '1', '2') /* 12  YUV 4:2:0     */
526 #define V4L2_PIX_FMT_HI240   v4l2_fourcc('H', 'I', '2', '4') /*  8  8-bit color   */
527 #define V4L2_PIX_FMT_HM12    v4l2_fourcc('H', 'M', '1', '2') /*  8  YUV 4:2:0 16x16 macroblocks */
528 #define V4L2_PIX_FMT_M420    v4l2_fourcc('M', '4', '2', '') /* 12  YUV 4:2:0 2 lines y, 1 line uv interleaved */
529 
530 /* two planes -- one Y, one Cr + Cb interleaved  */
531 #define V4L2_PIX_FMT_NV12    v4l2_fourcc('N', 'V', '1', '2') /* 12  Y/CbCr 4:2:0  */
532 #define V4L2_PIX_FMT_NV21    v4l2_fourcc('N', 'V', '2', '1') /* 12  Y/CrCb 4:2:0  */
533 #define V4L2_PIX_FMT_NV16    v4l2_fourcc('N', 'V', '1', '6') /* 16  Y/CbCr 4:2:2  */
534 #define V4L2_PIX_FMT_NV61    v4l2_fourcc('N', 'V', '6', '1') /* 16  Y/CrCb 4:2:2  */
535 #define V4L2_PIX_FMT_NV24    v4l2_fourcc('N', 'V', '2', '4') /* 24  Y/CbCr 4:4:4  */
536 #define V4L2_PIX_FMT_NV42    v4l2_fourcc('N', 'V', '4', '2') /* 24  Y/CrCb 4:4:4  */
537 
538 /* two non contiguous planes - one Y, one Cr + Cb interleaved  */
539 #define V4L2_PIX_FMT_NV12M   v4l2_fourcc('N', 'M', '1', '2') /* 12  Y/CbCr 4:2:0  */
540 #define V4L2_PIX_FMT_NV21M   v4l2_fourcc('N', 'M', '2', '1') /* 21  Y/CrCb 4:2:0  */
541 #define V4L2_PIX_FMT_NV16M   v4l2_fourcc('N', 'M', '1', '6') /* 16  Y/CbCr 4:2:2  */
542 #define V4L2_PIX_FMT_NV61M   v4l2_fourcc('N', 'M', '6', '1') /* 16  Y/CrCb 4:2:2  */
543 #define V4L2_PIX_FMT_NV12MT  v4l2_fourcc('T', 'M', '1', '2') /* 12  Y/CbCr 4:2:0 64x32 macroblocks */
544 #define V4L2_PIX_FMT_NV12MT_16X16 v4l2_fourcc('V', 'M', '1', '2') /* 12  Y/CbCr 4:2:0 16x16 macroblocks */
545 
546 /* three non contiguous planes - Y, Cb, Cr */
547 #define V4L2_PIX_FMT_YUV420M v4l2_fourcc('Y', 'M', '1', '2') /* 12  YUV420 planar */
548 #define V4L2_PIX_FMT_YVU420M v4l2_fourcc('Y', 'M', '2', '1') /* 12  YVU420 planar */
549 #define V4L2_PIX_FMT_YUV422M v4l2_fourcc('Y', 'M', '1', '6') /* 16  YUV422 planar */
550 #define V4L2_PIX_FMT_YVU422M v4l2_fourcc('Y', 'M', '6', '1') /* 16  YVU422 planar */
551 #define V4L2_PIX_FMT_YUV444M v4l2_fourcc('Y', 'M', '2', '4') /* 24  YUV444 planar */
552 #define V4L2_PIX_FMT_YVU444M v4l2_fourcc('Y', 'M', '4', '2') /* 24  YVU444 planar */
553 
554 /* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */
555 #define V4L2_PIX_FMT_SBGGR8  v4l2_fourcc('B', 'A', '8', '1') /*  8  BGBG.. GRGR.. */
556 #define V4L2_PIX_FMT_SGBRG8  v4l2_fourcc('G', 'B', 'R', 'G') /*  8  GBGB.. RGRG.. */
557 #define V4L2_PIX_FMT_SGRBG8  v4l2_fourcc('G', 'R', 'B', 'G') /*  8  GRGR.. BGBG.. */
558 #define V4L2_PIX_FMT_SRGGB8  v4l2_fourcc('R', 'G', 'G', 'B') /*  8  RGRG.. GBGB.. */
559 #define V4L2_PIX_FMT_SBGGR10 v4l2_fourcc('B', 'G', '1', '') /* 10  BGBG.. GRGR.. */
560 #define V4L2_PIX_FMT_SGBRG10 v4l2_fourcc('G', 'B', '1', '') /* 10  GBGB.. RGRG.. */
561 #define V4L2_PIX_FMT_SGRBG10 v4l2_fourcc('B', 'A', '1', '') /* 10  GRGR.. BGBG.. */
562 #define V4L2_PIX_FMT_SRGGB10 v4l2_fourcc('R', 'G', '1', '') /* 10  RGRG.. GBGB.. */
563         /* 10bit raw bayer packed, 5 bytes for every 4 pixels */
564 #define V4L2_PIX_FMT_SBGGR10P v4l2_fourcc('p', 'B', 'A', 'A')
565 #define V4L2_PIX_FMT_SGBRG10P v4l2_fourcc('p', 'G', 'A', 'A')
566 #define V4L2_PIX_FMT_SGRBG10P v4l2_fourcc('p', 'g', 'A', 'A')
567 #define V4L2_PIX_FMT_SRGGB10P v4l2_fourcc('p', 'R', 'A', 'A')
568         /* 10bit raw bayer a-law compressed to 8 bits */
569 #define V4L2_PIX_FMT_SBGGR10ALAW8 v4l2_fourcc('a', 'B', 'A', '8')
570 #define V4L2_PIX_FMT_SGBRG10ALAW8 v4l2_fourcc('a', 'G', 'A', '8')
571 #define V4L2_PIX_FMT_SGRBG10ALAW8 v4l2_fourcc('a', 'g', 'A', '8')
572 #define V4L2_PIX_FMT_SRGGB10ALAW8 v4l2_fourcc('a', 'R', 'A', '8')
573         /* 10bit raw bayer DPCM compressed to 8 bits */
574 #define V4L2_PIX_FMT_SBGGR10DPCM8 v4l2_fourcc('b', 'B', 'A', '8')
575 #define V4L2_PIX_FMT_SGBRG10DPCM8 v4l2_fourcc('b', 'G', 'A', '8')
576 #define V4L2_PIX_FMT_SGRBG10DPCM8 v4l2_fourcc('B', 'D', '1', '')
577 #define V4L2_PIX_FMT_SRGGB10DPCM8 v4l2_fourcc('b', 'R', 'A', '8')
578 #define V4L2_PIX_FMT_SBGGR12 v4l2_fourcc('B', 'G', '1', '2') /* 12  BGBG.. GRGR.. */
579 #define V4L2_PIX_FMT_SGBRG12 v4l2_fourcc('G', 'B', '1', '2') /* 12  GBGB.. RGRG.. */
580 #define V4L2_PIX_FMT_SGRBG12 v4l2_fourcc('B', 'A', '1', '2') /* 12  GRGR.. BGBG.. */
581 #define V4L2_PIX_FMT_SRGGB12 v4l2_fourcc('R', 'G', '1', '2') /* 12  RGRG.. GBGB.. */
582 #define V4L2_PIX_FMT_SBGGR16 v4l2_fourcc('B', 'Y', 'R', '2') /* 16  BGBG.. GRGR.. */
583 
584 /* compressed formats */
585 #define V4L2_PIX_FMT_MJPEG    v4l2_fourcc('M', 'J', 'P', 'G') /* Motion-JPEG   */
586 #define V4L2_PIX_FMT_JPEG     v4l2_fourcc('J', 'P', 'E', 'G') /* JFIF JPEG     */
587 #define V4L2_PIX_FMT_DV       v4l2_fourcc('d', 'v', 's', 'd') /* 1394          */
588 #define V4L2_PIX_FMT_MPEG     v4l2_fourcc('M', 'P', 'E', 'G') /* MPEG-1/2/4 Multiplexed */
589 #define V4L2_PIX_FMT_H264     v4l2_fourcc('H', '2', '6', '4') /* H264 with start codes */
590 #define V4L2_PIX_FMT_H264_NO_SC v4l2_fourcc('A', 'V', 'C', '1') /* H264 without start codes */
591 #define V4L2_PIX_FMT_H264_MVC v4l2_fourcc('M', '2', '6', '4') /* H264 MVC */
592 #define V4L2_PIX_FMT_H263     v4l2_fourcc('H', '2', '6', '3') /* H263          */
593 #define V4L2_PIX_FMT_MPEG1    v4l2_fourcc('M', 'P', 'G', '1') /* MPEG-1 ES     */
594 #define V4L2_PIX_FMT_MPEG2    v4l2_fourcc('M', 'P', 'G', '2') /* MPEG-2 ES     */
595 #define V4L2_PIX_FMT_MPEG4    v4l2_fourcc('M', 'P', 'G', '4') /* MPEG-4 part 2 ES */
596 #define V4L2_PIX_FMT_XVID     v4l2_fourcc('X', 'V', 'I', 'D') /* Xvid           */
597 #define V4L2_PIX_FMT_VC1_ANNEX_G v4l2_fourcc('V', 'C', '1', 'G') /* SMPTE 421M Annex G compliant stream */
598 #define V4L2_PIX_FMT_VC1_ANNEX_L v4l2_fourcc('V', 'C', '1', 'L') /* SMPTE 421M Annex L compliant stream */
599 #define V4L2_PIX_FMT_VP8      v4l2_fourcc('V', 'P', '8', '') /* VP8 */
600 
601 /*  Vendor-specific formats   */
602 #define V4L2_PIX_FMT_CPIA1    v4l2_fourcc('C', 'P', 'I', 'A') /* cpia1 YUV */
603 #define V4L2_PIX_FMT_WNVA     v4l2_fourcc('W', 'N', 'V', 'A') /* Winnov hw compress */
604 #define V4L2_PIX_FMT_SN9C10X  v4l2_fourcc('S', '9', '1', '') /* SN9C10x compression */
605 #define V4L2_PIX_FMT_SN9C20X_I420 v4l2_fourcc('S', '9', '2', '') /* SN9C20x YUV 4:2:0 */
606 #define V4L2_PIX_FMT_PWC1     v4l2_fourcc('P', 'W', 'C', '1') /* pwc older webcam */
607 #define V4L2_PIX_FMT_PWC2     v4l2_fourcc('P', 'W', 'C', '2') /* pwc newer webcam */
608 #define V4L2_PIX_FMT_ET61X251 v4l2_fourcc('E', '6', '2', '5') /* ET61X251 compression */
609 #define V4L2_PIX_FMT_SPCA501  v4l2_fourcc('S', '5', '', '1') /* YUYV per line */
610 #define V4L2_PIX_FMT_SPCA505  v4l2_fourcc('S', '5', '', '5') /* YYUV per line */
611 #define V4L2_PIX_FMT_SPCA508  v4l2_fourcc('S', '5', '', '8') /* YUVY per line */
612 #define V4L2_PIX_FMT_SPCA561  v4l2_fourcc('S', '5', '6', '1') /* compressed GBRG bayer */
613 #define V4L2_PIX_FMT_PAC207   v4l2_fourcc('P', '2', '', '7') /* compressed BGGR bayer */
614 #define V4L2_PIX_FMT_MR97310A v4l2_fourcc('M', '3', '1', '') /* compressed BGGR bayer */
615 #define V4L2_PIX_FMT_JL2005BCD v4l2_fourcc('J', 'L', '2', '') /* compressed RGGB bayer */
616 #define V4L2_PIX_FMT_SN9C2028 v4l2_fourcc('S', 'O', 'N', 'X') /* compressed GBRG bayer */
617 #define V4L2_PIX_FMT_SQ905C   v4l2_fourcc('9', '', '5', 'C') /* compressed RGGB bayer */
618 #define V4L2_PIX_FMT_PJPG     v4l2_fourcc('P', 'J', 'P', 'G') /* Pixart 73xx JPEG */
619 #define V4L2_PIX_FMT_OV511    v4l2_fourcc('O', '5', '1', '1') /* ov511 JPEG */
620 #define V4L2_PIX_FMT_OV518    v4l2_fourcc('O', '5', '1', '8') /* ov518 JPEG */
621 #define V4L2_PIX_FMT_STV0680  v4l2_fourcc('S', '6', '8', '') /* stv0680 bayer */
622 #define V4L2_PIX_FMT_TM6000   v4l2_fourcc('T', 'M', '6', '') /* tm5600/tm60x0 */
623 #define V4L2_PIX_FMT_CIT_YYVYUY v4l2_fourcc('C', 'I', 'T', 'V') /* one line of Y then 1 line of VYUY */
624 #define V4L2_PIX_FMT_KONICA420  v4l2_fourcc('K', 'O', 'N', 'I') /* YUV420 planar in blocks of 256 pixels */
625 #define V4L2_PIX_FMT_JPGL       v4l2_fourcc('J', 'P', 'G', 'L') /* JPEG-Lite */
626 #define V4L2_PIX_FMT_SE401      v4l2_fourcc('S', '4', '', '1') /* se401 janggu compressed rgb */
627 #define V4L2_PIX_FMT_S5C_UYVY_JPG v4l2_fourcc('S', '5', 'C', 'I') /* S5C73M3 interleaved UYVY/JPEG */
628 #define V4L2_PIX_FMT_Y8I      v4l2_fourcc('Y', '8', 'I', ' ') /* Greyscale 8-bit L/R interleaved */
629 #define V4L2_PIX_FMT_Y12I     v4l2_fourcc('Y', '1', '2', 'I') /* Greyscale 12-bit L/R interleaved */
630 #define V4L2_PIX_FMT_Z16      v4l2_fourcc('Z', '1', '6', ' ') /* Depth data 16-bit */
631 
632 /* SDR formats - used only for Software Defined Radio devices */
633 #define V4L2_SDR_FMT_CU8          v4l2_fourcc('C', 'U', '', '8') /* IQ u8 */
634 #define V4L2_SDR_FMT_CU16LE       v4l2_fourcc('C', 'U', '1', '6') /* IQ u16le */
635 #define V4L2_SDR_FMT_CS8          v4l2_fourcc('C', 'S', '', '8') /* complex s8 */
636 #define V4L2_SDR_FMT_CS14LE       v4l2_fourcc('C', 'S', '1', '4') /* complex s14le */
637 #define V4L2_SDR_FMT_RU12LE       v4l2_fourcc('R', 'U', '1', '2') /* real u12le */
638 
639 /* priv field value to indicates that subsequent fields are valid. */
640 #define V4L2_PIX_FMT_PRIV_MAGIC         0xfeedcafe
641 
642 /* Flags */
643 #define V4L2_PIX_FMT_FLAG_PREMUL_ALPHA  0x00000001
644 
645 /*
646  *      F O R M A T   E N U M E R A T I O N
647  */
648 struct v4l2_fmtdesc {
649         __u32               index;             /* Format number      */
650         __u32               type;              /* enum v4l2_buf_type */
651         __u32               flags;
652         __u8                description[32];   /* Description string */
653         __u32               pixelformat;       /* Format fourcc      */
654         __u32               reserved[4];
655 };
656 
657 #define V4L2_FMT_FLAG_COMPRESSED 0x0001
658 #define V4L2_FMT_FLAG_EMULATED   0x0002
659 
660 #if 1
661         /* Experimental Frame Size and frame rate enumeration */
662 /*
663  *      F R A M E   S I Z E   E N U M E R A T I O N
664  */
665 enum v4l2_frmsizetypes {
666         V4L2_FRMSIZE_TYPE_DISCRETE      = 1,
667         V4L2_FRMSIZE_TYPE_CONTINUOUS    = 2,
668         V4L2_FRMSIZE_TYPE_STEPWISE      = 3,
669 };
670 
671 struct v4l2_frmsize_discrete {
672         __u32                   width;          /* Frame width [pixel] */
673         __u32                   height;         /* Frame height [pixel] */
674 };
675 
676 struct v4l2_frmsize_stepwise {
677         __u32                   min_width;      /* Minimum frame width [pixel] */
678         __u32                   max_width;      /* Maximum frame width [pixel] */
679         __u32                   step_width;     /* Frame width step size [pixel] */
680         __u32                   min_height;     /* Minimum frame height [pixel] */
681         __u32                   max_height;     /* Maximum frame height [pixel] */
682         __u32                   step_height;    /* Frame height step size [pixel] */
683 };
684 
685 struct v4l2_frmsizeenum {
686         __u32                   index;          /* Frame size number */
687         __u32                   pixel_format;   /* Pixel format */
688         __u32                   type;           /* Frame size type the device supports. */
689 
690         union {                                 /* Frame size */
691                 struct v4l2_frmsize_discrete    discrete;
692                 struct v4l2_frmsize_stepwise    stepwise;
693         };
694 
695         __u32   reserved[2];                    /* Reserved space for future use */
696 };
697 
698 /*
699  *      F R A M E   R A T E   E N U M E R A T I O N
700  */
701 enum v4l2_frmivaltypes {
702         V4L2_FRMIVAL_TYPE_DISCRETE      = 1,
703         V4L2_FRMIVAL_TYPE_CONTINUOUS    = 2,
704         V4L2_FRMIVAL_TYPE_STEPWISE      = 3,
705 };
706 
707 struct v4l2_frmival_stepwise {
708         struct v4l2_fract       min;            /* Minimum frame interval [s] */
709         struct v4l2_fract       max;            /* Maximum frame interval [s] */
710         struct v4l2_fract       step;           /* Frame interval step size [s] */
711 };
712 
713 struct v4l2_frmivalenum {
714         __u32                   index;          /* Frame format index */
715         __u32                   pixel_format;   /* Pixel format */
716         __u32                   width;          /* Frame width */
717         __u32                   height;         /* Frame height */
718         __u32                   type;           /* Frame interval type the device supports. */
719 
720         union {                                 /* Frame interval */
721                 struct v4l2_fract               discrete;
722                 struct v4l2_frmival_stepwise    stepwise;
723         };
724 
725         __u32   reserved[2];                    /* Reserved space for future use */
726 };
727 #endif
728 
729 /*
730  *      T I M E C O D E
731  */
732 struct v4l2_timecode {
733         __u32   type;
734         __u32   flags;
735         __u8    frames;
736         __u8    seconds;
737         __u8    minutes;
738         __u8    hours;
739         __u8    userbits[4];
740 };
741 
742 /*  Type  */
743 #define V4L2_TC_TYPE_24FPS              1
744 #define V4L2_TC_TYPE_25FPS              2
745 #define V4L2_TC_TYPE_30FPS              3
746 #define V4L2_TC_TYPE_50FPS              4
747 #define V4L2_TC_TYPE_60FPS              5
748 
749 /*  Flags  */
750 #define V4L2_TC_FLAG_DROPFRAME          0x0001 /* "drop-frame" mode */
751 #define V4L2_TC_FLAG_COLORFRAME         0x0002
752 #define V4L2_TC_USERBITS_field          0x000C
753 #define V4L2_TC_USERBITS_USERDEFINED    0x0000
754 #define V4L2_TC_USERBITS_8BITCHARS      0x0008
755 /* The above is based on SMPTE timecodes */
756 
757 struct v4l2_jpegcompression {
758         int quality;
759 
760         int  APPn;              /* Number of APP segment to be written,
761                                  * must be 0..15 */
762         int  APP_len;           /* Length of data in JPEG APPn segment */
763         char APP_data[60];      /* Data in the JPEG APPn segment. */
764 
765         int  COM_len;           /* Length of data in JPEG COM segment */
766         char COM_data[60];      /* Data in JPEG COM segment */
767 
768         __u32 jpeg_markers;     /* Which markers should go into the JPEG
769                                  * output. Unless you exactly know what
770                                  * you do, leave them untouched.
771                                  * Including less markers will make the
772                                  * resulting code smaller, but there will
773                                  * be fewer applications which can read it.
774                                  * The presence of the APP and COM marker
775                                  * is influenced by APP_len and COM_len
776                                  * ONLY, not by this property! */
777 
778 #define V4L2_JPEG_MARKER_DHT (1<<3)    /* Define Huffman Tables */
779 #define V4L2_JPEG_MARKER_DQT (1<<4)    /* Define Quantization Tables */
780 #define V4L2_JPEG_MARKER_DRI (1<<5)    /* Define Restart Interval */
781 #define V4L2_JPEG_MARKER_COM (1<<6)    /* Comment segment */
782 #define V4L2_JPEG_MARKER_APP (1<<7)    /* App segment, driver will
783                                         * always use APP0 */
784 };
785 
786 /*
787  *      M E M O R Y - M A P P I N G   B U F F E R S
788  */
789 struct v4l2_requestbuffers {
790         __u32                   count;
791         __u32                   type;           /* enum v4l2_buf_type */
792         __u32                   memory;         /* enum v4l2_memory */
793         __u32                   reserved[2];
794 };
795 
796 /**
797  * struct v4l2_plane - plane info for multi-planar buffers
798  * @bytesused:          number of bytes occupied by data in the plane (payload)
799  * @length:             size of this plane (NOT the payload) in bytes
800  * @mem_offset:         when memory in the associated struct v4l2_buffer is
801  *                      V4L2_MEMORY_MMAP, equals the offset from the start of
802  *                      the device memory for this plane (or is a "cookie" that
803  *                      should be passed to mmap() called on the video node)
804  * @userptr:            when memory is V4L2_MEMORY_USERPTR, a userspace pointer
805  *                      pointing to this plane
806  * @fd:                 when memory is V4L2_MEMORY_DMABUF, a userspace file
807  *                      descriptor associated with this plane
808  * @data_offset:        offset in the plane to the start of data; usually 0,
809  *                      unless there is a header in front of the data
810  *
811  * Multi-planar buffers consist of one or more planes, e.g. an YCbCr buffer
812  * with two planes can have one plane for Y, and another for interleaved CbCr
813  * components. Each plane can reside in a separate memory buffer, or even in
814  * a completely separate memory node (e.g. in embedded devices).
815  */
816 struct v4l2_plane {
817         __u32                   bytesused;
818         __u32                   length;
819         union {
820                 __u32           mem_offset;
821                 unsigned long   userptr;
822                 __s32           fd;
823         } m;
824         __u32                   data_offset;
825         __u32                   reserved[11];
826 };
827 
828 /**
829  * struct v4l2_buffer - video buffer info
830  * @index:      id number of the buffer
831  * @type:       enum v4l2_buf_type; buffer type (type == *_MPLANE for
832  *              multiplanar buffers);
833  * @bytesused:  number of bytes occupied by data in the buffer (payload);
834  *              unused (set to 0) for multiplanar buffers
835  * @flags:      buffer informational flags
836  * @field:      enum v4l2_field; field order of the image in the buffer
837  * @timestamp:  frame timestamp
838  * @timecode:   frame timecode
839  * @sequence:   sequence count of this frame
840  * @memory:     enum v4l2_memory; the method, in which the actual video data is
841  *              passed
842  * @offset:     for non-multiplanar buffers with memory == V4L2_MEMORY_MMAP;
843  *              offset from the start of the device memory for this plane,
844  *              (or a "cookie" that should be passed to mmap() as offset)
845  * @userptr:    for non-multiplanar buffers with memory == V4L2_MEMORY_USERPTR;
846  *              a userspace pointer pointing to this buffer
847  * @fd:         for non-multiplanar buffers with memory == V4L2_MEMORY_DMABUF;
848  *              a userspace file descriptor associated with this buffer
849  * @planes:     for multiplanar buffers; userspace pointer to the array of plane
850  *              info structs for this buffer
851  * @length:     size in bytes of the buffer (NOT its payload) for single-plane
852  *              buffers (when type != *_MPLANE); number of elements in the
853  *              planes array for multi-plane buffers
854  *
855  * Contains data exchanged by application and driver using one of the Streaming
856  * I/O methods.
857  */
858 struct v4l2_buffer {
859         __u32                   index;
860         __u32                   type;
861         __u32                   bytesused;
862         __u32                   flags;
863         __u32                   field;
864         struct timeval          timestamp;
865         struct v4l2_timecode    timecode;
866         __u32                   sequence;
867 
868         /* memory location */
869         __u32                   memory;
870         union {
871                 __u32           offset;
872                 unsigned long   userptr;
873                 struct v4l2_plane *planes;
874                 __s32           fd;
875         } m;
876         __u32                   length;
877         __u32                   reserved2;
878         __u32                   reserved;
879 };
880 
881 /*  Flags for 'flags' field */
882 /* Buffer is mapped (flag) */
883 #define V4L2_BUF_FLAG_MAPPED                    0x00000001
884 /* Buffer is queued for processing */
885 #define V4L2_BUF_FLAG_QUEUED                    0x00000002
886 /* Buffer is ready */
887 #define V4L2_BUF_FLAG_DONE                      0x00000004
888 /* Image is a keyframe (I-frame) */
889 #define V4L2_BUF_FLAG_KEYFRAME                  0x00000008
890 /* Image is a P-frame */
891 #define V4L2_BUF_FLAG_PFRAME                    0x00000010
892 /* Image is a B-frame */
893 #define V4L2_BUF_FLAG_BFRAME                    0x00000020
894 /* Buffer is ready, but the data contained within is corrupted. */
895 #define V4L2_BUF_FLAG_ERROR                     0x00000040
896 /* timecode field is valid */
897 #define V4L2_BUF_FLAG_TIMECODE                  0x00000100
898 /* Buffer is prepared for queuing */
899 #define V4L2_BUF_FLAG_PREPARED                  0x00000400
900 /* Cache handling flags */
901 #define V4L2_BUF_FLAG_NO_CACHE_INVALIDATE       0x00000800
902 #define V4L2_BUF_FLAG_NO_CACHE_CLEAN            0x00001000
903 /* Timestamp type */
904 #define V4L2_BUF_FLAG_TIMESTAMP_MASK            0x0000e000
905 #define V4L2_BUF_FLAG_TIMESTAMP_UNKNOWN         0x00000000
906 #define V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC       0x00002000
907 #define V4L2_BUF_FLAG_TIMESTAMP_COPY            0x00004000
908 /* Timestamp sources. */
909 #define V4L2_BUF_FLAG_TSTAMP_SRC_MASK           0x00070000
910 #define V4L2_BUF_FLAG_TSTAMP_SRC_EOF            0x00000000
911 #define V4L2_BUF_FLAG_TSTAMP_SRC_SOE            0x00010000
912 /* mem2mem encoder/decoder */
913 #define V4L2_BUF_FLAG_LAST                      0x00100000
914 
915 /**
916  * struct v4l2_exportbuffer - export of video buffer as DMABUF file descriptor
917  *
918  * @index:      id number of the buffer
919  * @type:       enum v4l2_buf_type; buffer type (type == *_MPLANE for
920  *              multiplanar buffers);
921  * @plane:      index of the plane to be exported, 0 for single plane queues
922  * @flags:      flags for newly created file, currently only O_CLOEXEC is
923  *              supported, refer to manual of open syscall for more details
924  * @fd:         file descriptor associated with DMABUF (set by driver)
925  *
926  * Contains data used for exporting a video buffer as DMABUF file descriptor.
927  * The buffer is identified by a 'cookie' returned by VIDIOC_QUERYBUF
928  * (identical to the cookie used to mmap() the buffer to userspace). All
929  * reserved fields must be set to zero. The field reserved0 is expected to
930  * become a structure 'type' allowing an alternative layout of the structure
931  * content. Therefore this field should not be used for any other extensions.
932  */
933 struct v4l2_exportbuffer {
934         __u32           type; /* enum v4l2_buf_type */
935         __u32           index;
936         __u32           plane;
937         __u32           flags;
938         __s32           fd;
939         __u32           reserved[11];
940 };
941 
942 /*
943  *      O V E R L A Y   P R E V I E W
944  */
945 struct v4l2_framebuffer {
946         __u32                   capability;
947         __u32                   flags;
948 /* FIXME: in theory we should pass something like PCI device + memory
949  * region + offset instead of some physical address */
950         void                    *base;
951         struct {
952                 __u32           width;
953                 __u32           height;
954                 __u32           pixelformat;
955                 __u32           field;          /* enum v4l2_field */
956                 __u32           bytesperline;   /* for padding, zero if unused */
957                 __u32           sizeimage;
958                 __u32           colorspace;     /* enum v4l2_colorspace */
959                 __u32           priv;           /* reserved field, set to 0 */
960         } fmt;
961 };
962 /*  Flags for the 'capability' field. Read only */
963 #define V4L2_FBUF_CAP_EXTERNOVERLAY     0x0001
964 #define V4L2_FBUF_CAP_CHROMAKEY         0x0002
965 #define V4L2_FBUF_CAP_LIST_CLIPPING     0x0004
966 #define V4L2_FBUF_CAP_BITMAP_CLIPPING   0x0008
967 #define V4L2_FBUF_CAP_LOCAL_ALPHA       0x0010
968 #define V4L2_FBUF_CAP_GLOBAL_ALPHA      0x0020
969 #define V4L2_FBUF_CAP_LOCAL_INV_ALPHA   0x0040
970 #define V4L2_FBUF_CAP_SRC_CHROMAKEY     0x0080
971 /*  Flags for the 'flags' field. */
972 #define V4L2_FBUF_FLAG_PRIMARY          0x0001
973 #define V4L2_FBUF_FLAG_OVERLAY          0x0002
974 #define V4L2_FBUF_FLAG_CHROMAKEY        0x0004
975 #define V4L2_FBUF_FLAG_LOCAL_ALPHA      0x0008
976 #define V4L2_FBUF_FLAG_GLOBAL_ALPHA     0x0010
977 #define V4L2_FBUF_FLAG_LOCAL_INV_ALPHA  0x0020
978 #define V4L2_FBUF_FLAG_SRC_CHROMAKEY    0x0040
979 
980 struct v4l2_clip {
981         struct v4l2_rect        c;
982         struct v4l2_clip        __user *next;
983 };
984 
985 struct v4l2_window {
986         struct v4l2_rect        w;
987         __u32                   field;   /* enum v4l2_field */
988         __u32                   chromakey;
989         struct v4l2_clip        __user *clips;
990         __u32                   clipcount;
991         void                    __user *bitmap;
992         __u8                    global_alpha;
993 };
994 
995 /*
996  *      C A P T U R E   P A R A M E T E R S
997  */
998 struct v4l2_captureparm {
999         __u32              capability;    /*  Supported modes */
1000         __u32              capturemode;   /*  Current mode */
1001         struct v4l2_fract  timeperframe;  /*  Time per frame in seconds */
1002         __u32              extendedmode;  /*  Driver-specific extensions */
1003         __u32              readbuffers;   /*  # of buffers for read */
1004         __u32              reserved[4];
1005 };
1006 
1007 /*  Flags for 'capability' and 'capturemode' fields */
1008 #define V4L2_MODE_HIGHQUALITY   0x0001  /*  High quality imaging mode */
1009 #define V4L2_CAP_TIMEPERFRAME   0x1000  /*  timeperframe field is supported */
1010 
1011 struct v4l2_outputparm {
1012         __u32              capability;   /*  Supported modes */
1013         __u32              outputmode;   /*  Current mode */
1014         struct v4l2_fract  timeperframe; /*  Time per frame in seconds */
1015         __u32              extendedmode; /*  Driver-specific extensions */
1016         __u32              writebuffers; /*  # of buffers for write */
1017         __u32              reserved[4];
1018 };
1019 
1020 /*
1021  *      I N P U T   I M A G E   C R O P P I N G
1022  */
1023 struct v4l2_cropcap {
1024         __u32                   type;   /* enum v4l2_buf_type */
1025         struct v4l2_rect        bounds;
1026         struct v4l2_rect        defrect;
1027         struct v4l2_fract       pixelaspect;
1028 };
1029 
1030 struct v4l2_crop {
1031         __u32                   type;   /* enum v4l2_buf_type */
1032         struct v4l2_rect        c;
1033 };
1034 
1035 /**
1036  * struct v4l2_selection - selection info
1037  * @type:       buffer type (do not use *_MPLANE types)
1038  * @target:     Selection target, used to choose one of possible rectangles;
1039  *              defined in v4l2-common.h; V4L2_SEL_TGT_* .
1040  * @flags:      constraints flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*.
1041  * @r:          coordinates of selection window
1042  * @reserved:   for future use, rounds structure size to 64 bytes, set to zero
1043  *
1044  * Hardware may use multiple helper windows to process a video stream.
1045  * The structure is used to exchange this selection areas between
1046  * an application and a driver.
1047  */
1048 struct v4l2_selection {
1049         __u32                   type;
1050         __u32                   target;
1051         __u32                   flags;
1052         struct v4l2_rect        r;
1053         __u32                   reserved[9];
1054 };
1055 
1056 
1057 /*
1058  *      A N A L O G   V I D E O   S T A N D A R D
1059  */
1060 
1061 typedef __u64 v4l2_std_id;
1062 
1063 /* one bit for each */
1064 #define V4L2_STD_PAL_B          ((v4l2_std_id)0x00000001)
1065 #define V4L2_STD_PAL_B1         ((v4l2_std_id)0x00000002)
1066 #define V4L2_STD_PAL_G          ((v4l2_std_id)0x00000004)
1067 #define V4L2_STD_PAL_H          ((v4l2_std_id)0x00000008)
1068 #define V4L2_STD_PAL_I          ((v4l2_std_id)0x00000010)
1069 #define V4L2_STD_PAL_D          ((v4l2_std_id)0x00000020)
1070 #define V4L2_STD_PAL_D1         ((v4l2_std_id)0x00000040)
1071 #define V4L2_STD_PAL_K          ((v4l2_std_id)0x00000080)
1072 
1073 #define V4L2_STD_PAL_M          ((v4l2_std_id)0x00000100)
1074 #define V4L2_STD_PAL_N          ((v4l2_std_id)0x00000200)
1075 #define V4L2_STD_PAL_Nc         ((v4l2_std_id)0x00000400)
1076 #define V4L2_STD_PAL_60         ((v4l2_std_id)0x00000800)
1077 
1078 #define V4L2_STD_NTSC_M         ((v4l2_std_id)0x00001000)       /* BTSC */
1079 #define V4L2_STD_NTSC_M_JP      ((v4l2_std_id)0x00002000)       /* EIA-J */
1080 #define V4L2_STD_NTSC_443       ((v4l2_std_id)0x00004000)
1081 #define V4L2_STD_NTSC_M_KR      ((v4l2_std_id)0x00008000)       /* FM A2 */
1082 
1083 #define V4L2_STD_SECAM_B        ((v4l2_std_id)0x00010000)
1084 #define V4L2_STD_SECAM_D        ((v4l2_std_id)0x00020000)
1085 #define V4L2_STD_SECAM_G        ((v4l2_std_id)0x00040000)
1086 #define V4L2_STD_SECAM_H        ((v4l2_std_id)0x00080000)
1087 #define V4L2_STD_SECAM_K        ((v4l2_std_id)0x00100000)
1088 #define V4L2_STD_SECAM_K1       ((v4l2_std_id)0x00200000)
1089 #define V4L2_STD_SECAM_L        ((v4l2_std_id)0x00400000)
1090 #define V4L2_STD_SECAM_LC       ((v4l2_std_id)0x00800000)
1091 
1092 /* ATSC/HDTV */
1093 #define V4L2_STD_ATSC_8_VSB     ((v4l2_std_id)0x01000000)
1094 #define V4L2_STD_ATSC_16_VSB    ((v4l2_std_id)0x02000000)
1095 
1096 /* FIXME:
1097    Although std_id is 64 bits, there is an issue on PPC32 architecture that
1098    makes switch(__u64) to break. So, there's a hack on v4l2-common.c rounding
1099    this value to 32 bits.
1100    As, currently, the max value is for V4L2_STD_ATSC_16_VSB (30 bits wide),
1101    it should work fine. However, if needed to add more than two standards,
1102    v4l2-common.c should be fixed.
1103  */
1104 
1105 /*
1106  * Some macros to merge video standards in order to make live easier for the
1107  * drivers and V4L2 applications
1108  */
1109 
1110 /*
1111  * "Common" NTSC/M - It should be noticed that V4L2_STD_NTSC_443 is
1112  * Missing here.
1113  */
1114 #define V4L2_STD_NTSC           (V4L2_STD_NTSC_M        |\
1115                                  V4L2_STD_NTSC_M_JP     |\
1116                                  V4L2_STD_NTSC_M_KR)
1117 /* Secam macros */
1118 #define V4L2_STD_SECAM_DK       (V4L2_STD_SECAM_D       |\
1119                                  V4L2_STD_SECAM_K       |\
1120                                  V4L2_STD_SECAM_K1)
1121 /* All Secam Standards */
1122 #define V4L2_STD_SECAM          (V4L2_STD_SECAM_B       |\
1123                                  V4L2_STD_SECAM_G       |\
1124                                  V4L2_STD_SECAM_H       |\
1125                                  V4L2_STD_SECAM_DK      |\
1126                                  V4L2_STD_SECAM_L       |\
1127                                  V4L2_STD_SECAM_LC)
1128 /* PAL macros */
1129 #define V4L2_STD_PAL_BG         (V4L2_STD_PAL_B         |\
1130                                  V4L2_STD_PAL_B1        |\
1131                                  V4L2_STD_PAL_G)
1132 #define V4L2_STD_PAL_DK         (V4L2_STD_PAL_D         |\
1133                                  V4L2_STD_PAL_D1        |\
1134                                  V4L2_STD_PAL_K)
1135 /*
1136  * "Common" PAL - This macro is there to be compatible with the old
1137  * V4L1 concept of "PAL": /BGDKHI.
1138  * Several PAL standards are missing here: /M, /N and /Nc
1139  */
1140 #define V4L2_STD_PAL            (V4L2_STD_PAL_BG        |\
1141                                  V4L2_STD_PAL_DK        |\
1142                                  V4L2_STD_PAL_H         |\
1143                                  V4L2_STD_PAL_I)
1144 /* Chroma "agnostic" standards */
1145 #define V4L2_STD_B              (V4L2_STD_PAL_B         |\
1146                                  V4L2_STD_PAL_B1        |\
1147                                  V4L2_STD_SECAM_B)
1148 #define V4L2_STD_G              (V4L2_STD_PAL_G         |\
1149                                  V4L2_STD_SECAM_G)
1150 #define V4L2_STD_H              (V4L2_STD_PAL_H         |\
1151                                  V4L2_STD_SECAM_H)
1152 #define V4L2_STD_L              (V4L2_STD_SECAM_L       |\
1153                                  V4L2_STD_SECAM_LC)
1154 #define V4L2_STD_GH             (V4L2_STD_G             |\
1155                                  V4L2_STD_H)
1156 #define V4L2_STD_DK             (V4L2_STD_PAL_DK        |\
1157                                  V4L2_STD_SECAM_DK)
1158 #define V4L2_STD_BG             (V4L2_STD_B             |\
1159                                  V4L2_STD_G)
1160 #define V4L2_STD_MN             (V4L2_STD_PAL_M         |\
1161                                  V4L2_STD_PAL_N         |\
1162                                  V4L2_STD_PAL_Nc        |\
1163                                  V4L2_STD_NTSC)
1164 
1165 /* Standards where MTS/BTSC stereo could be found */
1166 #define V4L2_STD_MTS            (V4L2_STD_NTSC_M        |\
1167                                  V4L2_STD_PAL_M         |\
1168                                  V4L2_STD_PAL_N         |\
1169                                  V4L2_STD_PAL_Nc)
1170 
1171 /* Standards for Countries with 60Hz Line frequency */
1172 #define V4L2_STD_525_60         (V4L2_STD_PAL_M         |\
1173                                  V4L2_STD_PAL_60        |\
1174                                  V4L2_STD_NTSC          |\
1175                                  V4L2_STD_NTSC_443)
1176 /* Standards for Countries with 50Hz Line frequency */
1177 #define V4L2_STD_625_50         (V4L2_STD_PAL           |\
1178                                  V4L2_STD_PAL_N         |\
1179                                  V4L2_STD_PAL_Nc        |\
1180                                  V4L2_STD_SECAM)
1181 
1182 #define V4L2_STD_ATSC           (V4L2_STD_ATSC_8_VSB    |\
1183                                  V4L2_STD_ATSC_16_VSB)
1184 /* Macros with none and all analog standards */
1185 #define V4L2_STD_UNKNOWN        0
1186 #define V4L2_STD_ALL            (V4L2_STD_525_60        |\
1187                                  V4L2_STD_625_50)
1188 
1189 struct v4l2_standard {
1190         __u32                index;
1191         v4l2_std_id          id;
1192         __u8                 name[24];
1193         struct v4l2_fract    frameperiod; /* Frames, not fields */
1194         __u32                framelines;
1195         __u32                reserved[4];
1196 };
1197 
1198 /*
1199  *      D V     B T     T I M I N G S
1200  */
1201 
1202 /** struct v4l2_bt_timings - BT.656/BT.1120 timing data
1203  * @width:      total width of the active video in pixels
1204  * @height:     total height of the active video in lines
1205  * @interlaced: Interlaced or progressive
1206  * @polarities: Positive or negative polarities
1207  * @pixelclock: Pixel clock in HZ. Ex. 74.25MHz->74250000
1208  * @hfrontporch:Horizontal front porch in pixels
1209  * @hsync:      Horizontal Sync length in pixels
1210  * @hbackporch: Horizontal back porch in pixels
1211  * @vfrontporch:Vertical front porch in lines
1212  * @vsync:      Vertical Sync length in lines
1213  * @vbackporch: Vertical back porch in lines
1214  * @il_vfrontporch:Vertical front porch for the even field
1215  *              (aka field 2) of interlaced field formats
1216  * @il_vsync:   Vertical Sync length for the even field
1217  *              (aka field 2) of interlaced field formats
1218  * @il_vbackporch:Vertical back porch for the even field
1219  *              (aka field 2) of interlaced field formats
1220  * @standards:  Standards the timing belongs to
1221  * @flags:      Flags
1222  * @reserved:   Reserved fields, must be zeroed.
1223  *
1224  * A note regarding vertical interlaced timings: height refers to the total
1225  * height of the active video frame (= two fields). The blanking timings refer
1226  * to the blanking of each field. So the height of the total frame is
1227  * calculated as follows:
1228  *
1229  * tot_height = height + vfrontporch + vsync + vbackporch +
1230  *                       il_vfrontporch + il_vsync + il_vbackporch
1231  *
1232  * The active height of each field is height / 2.
1233  */
1234 struct v4l2_bt_timings {
1235         __u32   width;
1236         __u32   height;
1237         __u32   interlaced;
1238         __u32   polarities;
1239         __u64   pixelclock;
1240         __u32   hfrontporch;
1241         __u32   hsync;
1242         __u32   hbackporch;
1243         __u32   vfrontporch;
1244         __u32   vsync;
1245         __u32   vbackporch;
1246         __u32   il_vfrontporch;
1247         __u32   il_vsync;
1248         __u32   il_vbackporch;
1249         __u32   standards;
1250         __u32   flags;
1251         __u32   reserved[14];
1252 } __attribute__ ((packed));
1253 
1254 /* Interlaced or progressive format */
1255 #define V4L2_DV_PROGRESSIVE     0
1256 #define V4L2_DV_INTERLACED      1
1257 
1258 /* Polarities. If bit is not set, it is assumed to be negative polarity */
1259 #define V4L2_DV_VSYNC_POS_POL   0x00000001
1260 #define V4L2_DV_HSYNC_POS_POL   0x00000002
1261 
1262 /* Timings standards */
1263 #define V4L2_DV_BT_STD_CEA861   (1 << 0)  /* CEA-861 Digital TV Profile */
1264 #define V4L2_DV_BT_STD_DMT      (1 << 1)  /* VESA Discrete Monitor Timings */
1265 #define V4L2_DV_BT_STD_CVT      (1 << 2)  /* VESA Coordinated Video Timings */
1266 #define V4L2_DV_BT_STD_GTF      (1 << 3)  /* VESA Generalized Timings Formula */
1267 
1268 /* Flags */
1269 
1270 /* CVT/GTF specific: timing uses reduced blanking (CVT) or the 'Secondary
1271    GTF' curve (GTF). In both cases the horizontal and/or vertical blanking
1272    intervals are reduced, allowing a higher resolution over the same
1273    bandwidth. This is a read-only flag. */
1274 #define V4L2_DV_FL_REDUCED_BLANKING             (1 << 0)
1275 /* CEA-861 specific: set for CEA-861 formats with a framerate of a multiple
1276    of six. These formats can be optionally played at 1 / 1.001 speed.
1277    This is a read-only flag. */
1278 #define V4L2_DV_FL_CAN_REDUCE_FPS               (1 << 1)
1279 /* CEA-861 specific: only valid for video transmitters, the flag is cleared
1280    by receivers.
1281    If the framerate of the format is a multiple of six, then the pixelclock
1282    used to set up the transmitter is divided by 1.001 to make it compatible
1283    with 60 Hz based standards such as NTSC and PAL-M that use a framerate of
1284    29.97 Hz. Otherwise this flag is cleared. If the transmitter can't generate
1285    such frequencies, then the flag will also be cleared. */
1286 #define V4L2_DV_FL_REDUCED_FPS                  (1 << 2)
1287 /* Specific to interlaced formats: if set, then field 1 is really one half-line
1288    longer and field 2 is really one half-line shorter, so each field has
1289    exactly the same number of half-lines. Whether half-lines can be detected
1290    or used depends on the hardware. */
1291 #define V4L2_DV_FL_HALF_LINE                    (1 << 3)
1292 /* If set, then this is a Consumer Electronics (CE) video format. Such formats
1293  * differ from other formats (commonly called IT formats) in that if RGB
1294  * encoding is used then by default the RGB values use limited range (i.e.
1295  * use the range 16-235) as opposed to 0-255. All formats defined in CEA-861
1296  * except for the 640x480 format are CE formats. */
1297 #define V4L2_DV_FL_IS_CE_VIDEO                  (1 << 4)
1298 
1299 /* A few useful defines to calculate the total blanking and frame sizes */
1300 #define V4L2_DV_BT_BLANKING_WIDTH(bt) \
1301         ((bt)->hfrontporch + (bt)->hsync + (bt)->hbackporch)
1302 #define V4L2_DV_BT_FRAME_WIDTH(bt) \
1303         ((bt)->width + V4L2_DV_BT_BLANKING_WIDTH(bt))
1304 #define V4L2_DV_BT_BLANKING_HEIGHT(bt) \
1305         ((bt)->vfrontporch + (bt)->vsync + (bt)->vbackporch + \
1306          (bt)->il_vfrontporch + (bt)->il_vsync + (bt)->il_vbackporch)
1307 #define V4L2_DV_BT_FRAME_HEIGHT(bt) \
1308         ((bt)->height + V4L2_DV_BT_BLANKING_HEIGHT(bt))
1309 
1310 /** struct v4l2_dv_timings - DV timings
1311  * @type:       the type of the timings
1312  * @bt: BT656/1120 timings
1313  */
1314 struct v4l2_dv_timings {
1315         __u32 type;
1316         union {
1317                 struct v4l2_bt_timings  bt;
1318                 __u32   reserved[32];
1319         };
1320 } __attribute__ ((packed));
1321 
1322 /* Values for the type field */
1323 #define V4L2_DV_BT_656_1120     0       /* BT.656/1120 timing type */
1324 
1325 
1326 /** struct v4l2_enum_dv_timings - DV timings enumeration
1327  * @index:      enumeration index
1328  * @pad:        the pad number for which to enumerate timings (used with
1329  *              v4l-subdev nodes only)
1330  * @reserved:   must be zeroed
1331  * @timings:    the timings for the given index
1332  */
1333 struct v4l2_enum_dv_timings {
1334         __u32 index;
1335         __u32 pad;
1336         __u32 reserved[2];
1337         struct v4l2_dv_timings timings;
1338 };
1339 
1340 /** struct v4l2_bt_timings_cap - BT.656/BT.1120 timing capabilities
1341  * @min_width:          width in pixels
1342  * @max_width:          width in pixels
1343  * @min_height:         height in lines
1344  * @max_height:         height in lines
1345  * @min_pixelclock:     Pixel clock in HZ. Ex. 74.25MHz->74250000
1346  * @max_pixelclock:     Pixel clock in HZ. Ex. 74.25MHz->74250000
1347  * @standards:          Supported standards
1348  * @capabilities:       Supported capabilities
1349  * @reserved:           Must be zeroed
1350  */
1351 struct v4l2_bt_timings_cap {
1352         __u32   min_width;
1353         __u32   max_width;
1354         __u32   min_height;
1355         __u32   max_height;
1356         __u64   min_pixelclock;
1357         __u64   max_pixelclock;
1358         __u32   standards;
1359         __u32   capabilities;
1360         __u32   reserved[16];
1361 } __attribute__ ((packed));
1362 
1363 /* Supports interlaced formats */
1364 #define V4L2_DV_BT_CAP_INTERLACED       (1 << 0)
1365 /* Supports progressive formats */
1366 #define V4L2_DV_BT_CAP_PROGRESSIVE      (1 << 1)
1367 /* Supports CVT/GTF reduced blanking */
1368 #define V4L2_DV_BT_CAP_REDUCED_BLANKING (1 << 2)
1369 /* Supports custom formats */
1370 #define V4L2_DV_BT_CAP_CUSTOM           (1 << 3)
1371 
1372 /** struct v4l2_dv_timings_cap - DV timings capabilities
1373  * @type:       the type of the timings (same as in struct v4l2_dv_timings)
1374  * @pad:        the pad number for which to query capabilities (used with
1375  *              v4l-subdev nodes only)
1376  * @bt:         the BT656/1120 timings capabilities
1377  */
1378 struct v4l2_dv_timings_cap {
1379         __u32 type;
1380         __u32 pad;
1381         __u32 reserved[2];
1382         union {
1383                 struct v4l2_bt_timings_cap bt;
1384                 __u32 raw_data[32];
1385         };
1386 };
1387 
1388 
1389 /*
1390  *      V I D E O   I N P U T S
1391  */
1392 struct v4l2_input {
1393         __u32        index;             /*  Which input */
1394         __u8         name[32];          /*  Label */
1395         __u32        type;              /*  Type of input */
1396         __u32        audioset;          /*  Associated audios (bitfield) */
1397         __u32        tuner;             /*  enum v4l2_tuner_type */
1398         v4l2_std_id  std;
1399         __u32        status;
1400         __u32        capabilities;
1401         __u32        reserved[3];
1402 };
1403 
1404 /*  Values for the 'type' field */
1405 #define V4L2_INPUT_TYPE_TUNER           1
1406 #define V4L2_INPUT_TYPE_CAMERA          2
1407 
1408 /* field 'status' - general */
1409 #define V4L2_IN_ST_NO_POWER    0x00000001  /* Attached device is off */
1410 #define V4L2_IN_ST_NO_SIGNAL   0x00000002
1411 #define V4L2_IN_ST_NO_COLOR    0x00000004
1412 
1413 /* field 'status' - sensor orientation */
1414 /* If sensor is mounted upside down set both bits */
1415 #define V4L2_IN_ST_HFLIP       0x00000010 /* Frames are flipped horizontally */
1416 #define V4L2_IN_ST_VFLIP       0x00000020 /* Frames are flipped vertically */
1417 
1418 /* field 'status' - analog */
1419 #define V4L2_IN_ST_NO_H_LOCK   0x00000100  /* No horizontal sync lock */
1420 #define V4L2_IN_ST_COLOR_KILL  0x00000200  /* Color killer is active */
1421 
1422 /* field 'status' - digital */
1423 #define V4L2_IN_ST_NO_SYNC     0x00010000  /* No synchronization lock */
1424 #define V4L2_IN_ST_NO_EQU      0x00020000  /* No equalizer lock */
1425 #define V4L2_IN_ST_NO_CARRIER  0x00040000  /* Carrier recovery failed */
1426 
1427 /* field 'status' - VCR and set-top box */
1428 #define V4L2_IN_ST_MACROVISION 0x01000000  /* Macrovision detected */
1429 #define V4L2_IN_ST_NO_ACCESS   0x02000000  /* Conditional access denied */
1430 #define V4L2_IN_ST_VTR         0x04000000  /* VTR time constant */
1431 
1432 /* capabilities flags */
1433 #define V4L2_IN_CAP_DV_TIMINGS          0x00000002 /* Supports S_DV_TIMINGS */
1434 #define V4L2_IN_CAP_CUSTOM_TIMINGS      V4L2_IN_CAP_DV_TIMINGS /* For compatibility */
1435 #define V4L2_IN_CAP_STD                 0x00000004 /* Supports S_STD */
1436 #define V4L2_IN_CAP_NATIVE_SIZE         0x00000008 /* Supports setting native size */
1437 
1438 /*
1439  *      V I D E O   O U T P U T S
1440  */
1441 struct v4l2_output {
1442         __u32        index;             /*  Which output */
1443         __u8         name[32];          /*  Label */
1444         __u32        type;              /*  Type of output */
1445         __u32        audioset;          /*  Associated audios (bitfield) */
1446         __u32        modulator;         /*  Associated modulator */
1447         v4l2_std_id  std;
1448         __u32        capabilities;
1449         __u32        reserved[3];
1450 };
1451 /*  Values for the 'type' field */
1452 #define V4L2_OUTPUT_TYPE_MODULATOR              1
1453 #define V4L2_OUTPUT_TYPE_ANALOG                 2
1454 #define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY       3
1455 
1456 /* capabilities flags */
1457 #define V4L2_OUT_CAP_DV_TIMINGS         0x00000002 /* Supports S_DV_TIMINGS */
1458 #define V4L2_OUT_CAP_CUSTOM_TIMINGS     V4L2_OUT_CAP_DV_TIMINGS /* For compatibility */
1459 #define V4L2_OUT_CAP_STD                0x00000004 /* Supports S_STD */
1460 #define V4L2_OUT_CAP_NATIVE_SIZE        0x00000008 /* Supports setting native size */
1461 
1462 /*
1463  *      C O N T R O L S
1464  */
1465 struct v4l2_control {
1466         __u32                id;
1467         __s32                value;
1468 };
1469 
1470 struct v4l2_ext_control {
1471         __u32 id;
1472         __u32 size;
1473         __u32 reserved2[1];
1474         union {
1475                 __s32 value;
1476                 __s64 value64;
1477                 char __user *string;
1478                 __u8 __user *p_u8;
1479                 __u16 __user *p_u16;
1480                 __u32 __user *p_u32;
1481                 void __user *ptr;
1482         };
1483 } __attribute__ ((packed));
1484 
1485 struct v4l2_ext_controls {
1486         union {
1487 #ifndef __KERNEL__
1488                 __u32 ctrl_class;
1489 #endif
1490                 __u32 which;
1491         };
1492         __u32 count;
1493         __u32 error_idx;
1494         __u32 reserved[2];
1495         struct v4l2_ext_control *controls;
1496 };
1497 
1498 #define V4L2_CTRL_ID_MASK         (0x0fffffff)
1499 #ifndef __KERNEL__
1500 #define V4L2_CTRL_ID2CLASS(id)    ((id) & 0x0fff0000UL)
1501 #endif
1502 #define V4L2_CTRL_ID2WHICH(id)    ((id) & 0x0fff0000UL)
1503 #define V4L2_CTRL_DRIVER_PRIV(id) (((id) & 0xffff) >= 0x1000)
1504 #define V4L2_CTRL_MAX_DIMS        (4)
1505 #define V4L2_CTRL_WHICH_CUR_VAL   0
1506 #define V4L2_CTRL_WHICH_DEF_VAL   0x0f000000
1507 
1508 enum v4l2_ctrl_type {
1509         V4L2_CTRL_TYPE_INTEGER       = 1,
1510         V4L2_CTRL_TYPE_BOOLEAN       = 2,
1511         V4L2_CTRL_TYPE_MENU          = 3,
1512         V4L2_CTRL_TYPE_BUTTON        = 4,
1513         V4L2_CTRL_TYPE_INTEGER64     = 5,
1514         V4L2_CTRL_TYPE_CTRL_CLASS    = 6,
1515         V4L2_CTRL_TYPE_STRING        = 7,
1516         V4L2_CTRL_TYPE_BITMASK       = 8,
1517         V4L2_CTRL_TYPE_INTEGER_MENU  = 9,
1518 
1519         /* Compound types are >= 0x0100 */
1520         V4L2_CTRL_COMPOUND_TYPES     = 0x0100,
1521         V4L2_CTRL_TYPE_U8            = 0x0100,
1522         V4L2_CTRL_TYPE_U16           = 0x0101,
1523         V4L2_CTRL_TYPE_U32           = 0x0102,
1524 };
1525 
1526 /*  Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
1527 struct v4l2_queryctrl {
1528         __u32                id;
1529         __u32                type;      /* enum v4l2_ctrl_type */
1530         __u8                 name[32];  /* Whatever */
1531         __s32                minimum;   /* Note signedness */
1532         __s32                maximum;
1533         __s32                step;
1534         __s32                default_value;
1535         __u32                flags;
1536         __u32                reserved[2];
1537 };
1538 
1539 /*  Used in the VIDIOC_QUERY_EXT_CTRL ioctl for querying extended controls */
1540 struct v4l2_query_ext_ctrl {
1541         __u32                id;
1542         __u32                type;
1543         char                 name[32];
1544         __s64                minimum;
1545         __s64                maximum;
1546         __u64                step;
1547         __s64                default_value;
1548         __u32                flags;
1549         __u32                elem_size;
1550         __u32                elems;
1551         __u32                nr_of_dims;
1552         __u32                dims[V4L2_CTRL_MAX_DIMS];
1553         __u32                reserved[32];
1554 };
1555 
1556 /*  Used in the VIDIOC_QUERYMENU ioctl for querying menu items */
1557 struct v4l2_querymenu {
1558         __u32           id;
1559         __u32           index;
1560         union {
1561                 __u8    name[32];       /* Whatever */
1562                 __s64   value;
1563         };
1564         __u32           reserved;
1565 } __attribute__ ((packed));
1566 
1567 /*  Control flags  */
1568 #define V4L2_CTRL_FLAG_DISABLED         0x0001
1569 #define V4L2_CTRL_FLAG_GRABBED          0x0002
1570 #define V4L2_CTRL_FLAG_READ_ONLY        0x0004
1571 #define V4L2_CTRL_FLAG_UPDATE           0x0008
1572 #define V4L2_CTRL_FLAG_INACTIVE         0x0010
1573 #define V4L2_CTRL_FLAG_SLIDER           0x0020
1574 #define V4L2_CTRL_FLAG_WRITE_ONLY       0x0040
1575 #define V4L2_CTRL_FLAG_VOLATILE         0x0080
1576 #define V4L2_CTRL_FLAG_HAS_PAYLOAD      0x0100
1577 #define V4L2_CTRL_FLAG_EXECUTE_ON_WRITE 0x0200
1578 
1579 /*  Query flags, to be ORed with the control ID */
1580 #define V4L2_CTRL_FLAG_NEXT_CTRL        0x80000000
1581 #define V4L2_CTRL_FLAG_NEXT_COMPOUND    0x40000000
1582 
1583 /*  User-class control IDs defined by V4L2 */
1584 #define V4L2_CID_MAX_CTRLS              1024
1585 /*  IDs reserved for driver specific controls */
1586 #define V4L2_CID_PRIVATE_BASE           0x08000000
1587 
1588 
1589 /*
1590  *      T U N I N G
1591  */
1592 struct v4l2_tuner {
1593         __u32                   index;
1594         __u8                    name[32];
1595         __u32                   type;   /* enum v4l2_tuner_type */
1596         __u32                   capability;
1597         __u32                   rangelow;
1598         __u32                   rangehigh;
1599         __u32                   rxsubchans;
1600         __u32                   audmode;
1601         __s32                   signal;
1602         __s32                   afc;
1603         __u32                   reserved[4];
1604 };
1605 
1606 struct v4l2_modulator {
1607         __u32                   index;
1608         __u8                    name[32];
1609         __u32                   capability;
1610         __u32                   rangelow;
1611         __u32                   rangehigh;
1612         __u32                   txsubchans;
1613         __u32                   type;   /* enum v4l2_tuner_type */
1614         __u32                   reserved[3];
1615 };
1616 
1617 /*  Flags for the 'capability' field */
1618 #define V4L2_TUNER_CAP_LOW              0x0001
1619 #define V4L2_TUNER_CAP_NORM             0x0002
1620 #define V4L2_TUNER_CAP_HWSEEK_BOUNDED   0x0004
1621 #define V4L2_TUNER_CAP_HWSEEK_WRAP      0x0008
1622 #define V4L2_TUNER_CAP_STEREO           0x0010
1623 #define V4L2_TUNER_CAP_LANG2            0x0020
1624 #define V4L2_TUNER_CAP_SAP              0x0020
1625 #define V4L2_TUNER_CAP_LANG1            0x0040
1626 #define V4L2_TUNER_CAP_RDS              0x0080
1627 #define V4L2_TUNER_CAP_RDS_BLOCK_IO     0x0100
1628 #define V4L2_TUNER_CAP_RDS_CONTROLS     0x0200
1629 #define V4L2_TUNER_CAP_FREQ_BANDS       0x0400
1630 #define V4L2_TUNER_CAP_HWSEEK_PROG_LIM  0x0800
1631 #define V4L2_TUNER_CAP_1HZ              0x1000
1632 
1633 /*  Flags for the 'rxsubchans' field */
1634 #define V4L2_TUNER_SUB_MONO             0x0001
1635 #define V4L2_TUNER_SUB_STEREO           0x0002
1636 #define V4L2_TUNER_SUB_LANG2            0x0004
1637 #define V4L2_TUNER_SUB_SAP              0x0004
1638 #define V4L2_TUNER_SUB_LANG1            0x0008
1639 #define V4L2_TUNER_SUB_RDS              0x0010
1640 
1641 /*  Values for the 'audmode' field */
1642 #define V4L2_TUNER_MODE_MONO            0x0000
1643 #define V4L2_TUNER_MODE_STEREO          0x0001
1644 #define V4L2_TUNER_MODE_LANG2           0x0002
1645 #define V4L2_TUNER_MODE_SAP             0x0002
1646 #define V4L2_TUNER_MODE_LANG1           0x0003
1647 #define V4L2_TUNER_MODE_LANG1_LANG2     0x0004
1648 
1649 struct v4l2_frequency {
1650         __u32   tuner;
1651         __u32   type;   /* enum v4l2_tuner_type */
1652         __u32   frequency;
1653         __u32   reserved[8];
1654 };
1655 
1656 #define V4L2_BAND_MODULATION_VSB        (1 << 1)
1657 #define V4L2_BAND_MODULATION_FM         (1 << 2)
1658 #define V4L2_BAND_MODULATION_AM         (1 << 3)
1659 
1660 struct v4l2_frequency_band {
1661         __u32   tuner;
1662         __u32   type;   /* enum v4l2_tuner_type */
1663         __u32   index;
1664         __u32   capability;
1665         __u32   rangelow;
1666         __u32   rangehigh;
1667         __u32   modulation;
1668         __u32   reserved[9];
1669 };
1670 
1671 struct v4l2_hw_freq_seek {
1672         __u32   tuner;
1673         __u32   type;   /* enum v4l2_tuner_type */
1674         __u32   seek_upward;
1675         __u32   wrap_around;
1676         __u32   spacing;
1677         __u32   rangelow;
1678         __u32   rangehigh;
1679         __u32   reserved[5];
1680 };
1681 
1682 /*
1683  *      R D S
1684  */
1685 
1686 struct v4l2_rds_data {
1687         __u8    lsb;
1688         __u8    msb;
1689         __u8    block;
1690 } __attribute__ ((packed));
1691 
1692 #define V4L2_RDS_BLOCK_MSK       0x7
1693 #define V4L2_RDS_BLOCK_A         0
1694 #define V4L2_RDS_BLOCK_B         1
1695 #define V4L2_RDS_BLOCK_C         2
1696 #define V4L2_RDS_BLOCK_D         3
1697 #define V4L2_RDS_BLOCK_C_ALT     4
1698 #define V4L2_RDS_BLOCK_INVALID   7
1699 
1700 #define V4L2_RDS_BLOCK_CORRECTED 0x40
1701 #define V4L2_RDS_BLOCK_ERROR     0x80
1702 
1703 /*
1704  *      A U D I O
1705  */
1706 struct v4l2_audio {
1707         __u32   index;
1708         __u8    name[32];
1709         __u32   capability;
1710         __u32   mode;
1711         __u32   reserved[2];
1712 };
1713 
1714 /*  Flags for the 'capability' field */
1715 #define V4L2_AUDCAP_STEREO              0x00001
1716 #define V4L2_AUDCAP_AVL                 0x00002
1717 
1718 /*  Flags for the 'mode' field */
1719 #define V4L2_AUDMODE_AVL                0x00001
1720 
1721 struct v4l2_audioout {
1722         __u32   index;
1723         __u8    name[32];
1724         __u32   capability;
1725         __u32   mode;
1726         __u32   reserved[2];
1727 };
1728 
1729 /*
1730  *      M P E G   S E R V I C E S
1731  *
1732  *      NOTE: EXPERIMENTAL API
1733  */
1734 #if 1
1735 #define V4L2_ENC_IDX_FRAME_I    (0)
1736 #define V4L2_ENC_IDX_FRAME_P    (1)
1737 #define V4L2_ENC_IDX_FRAME_B    (2)
1738 #define V4L2_ENC_IDX_FRAME_MASK (0xf)
1739 
1740 struct v4l2_enc_idx_entry {
1741         __u64 offset;
1742         __u64 pts;
1743         __u32 length;
1744         __u32 flags;
1745         __u32 reserved[2];
1746 };
1747 
1748 #define V4L2_ENC_IDX_ENTRIES (64)
1749 struct v4l2_enc_idx {
1750         __u32 entries;
1751         __u32 entries_cap;
1752         __u32 reserved[4];
1753         struct v4l2_enc_idx_entry entry[V4L2_ENC_IDX_ENTRIES];
1754 };
1755 
1756 
1757 #define V4L2_ENC_CMD_START      (0)
1758 #define V4L2_ENC_CMD_STOP       (1)
1759 #define V4L2_ENC_CMD_PAUSE      (2)
1760 #define V4L2_ENC_CMD_RESUME     (3)
1761 
1762 /* Flags for V4L2_ENC_CMD_STOP */
1763 #define V4L2_ENC_CMD_STOP_AT_GOP_END    (1 << 0)
1764 
1765 struct v4l2_encoder_cmd {
1766         __u32 cmd;
1767         __u32 flags;
1768         union {
1769                 struct {
1770                         __u32 data[8];
1771                 } raw;
1772         };
1773 };
1774 
1775 /* Decoder commands */
1776 #define V4L2_DEC_CMD_START       (0)
1777 #define V4L2_DEC_CMD_STOP        (1)
1778 #define V4L2_DEC_CMD_PAUSE       (2)
1779 #define V4L2_DEC_CMD_RESUME      (3)
1780 
1781 /* Flags for V4L2_DEC_CMD_START */
1782 #define V4L2_DEC_CMD_START_MUTE_AUDIO   (1 << 0)
1783 
1784 /* Flags for V4L2_DEC_CMD_PAUSE */
1785 #define V4L2_DEC_CMD_PAUSE_TO_BLACK     (1 << 0)
1786 
1787 /* Flags for V4L2_DEC_CMD_STOP */
1788 #define V4L2_DEC_CMD_STOP_TO_BLACK      (1 << 0)
1789 #define V4L2_DEC_CMD_STOP_IMMEDIATELY   (1 << 1)
1790 
1791 /* Play format requirements (returned by the driver): */
1792 
1793 /* The decoder has no special format requirements */
1794 #define V4L2_DEC_START_FMT_NONE         (0)
1795 /* The decoder requires full GOPs */
1796 #define V4L2_DEC_START_FMT_GOP          (1)
1797 
1798 /* The structure must be zeroed before use by the application
1799    This ensures it can be extended safely in the future. */
1800 struct v4l2_decoder_cmd {
1801         __u32 cmd;
1802         __u32 flags;
1803         union {
1804                 struct {
1805                         __u64 pts;
1806                 } stop;
1807 
1808                 struct {
1809                         /* 0 or 1000 specifies normal speed,
1810                            1 specifies forward single stepping,
1811                            -1 specifies backward single stepping,
1812                            >1: playback at speed/1000 of the normal speed,
1813                            <-1: reverse playback at (-speed/1000) of the normal speed. */
1814                         __s32 speed;
1815                         __u32 format;
1816                 } start;
1817 
1818                 struct {
1819                         __u32 data[16];
1820                 } raw;
1821         };
1822 };
1823 #endif
1824 
1825 
1826 /*
1827  *      D A T A   S E R V I C E S   ( V B I )
1828  *
1829  *      Data services API by Michael Schimek
1830  */
1831 
1832 /* Raw VBI */
1833 struct v4l2_vbi_format {
1834         __u32   sampling_rate;          /* in 1 Hz */
1835         __u32   offset;
1836         __u32   samples_per_line;
1837         __u32   sample_format;          /* V4L2_PIX_FMT_* */
1838         __s32   start[2];
1839         __u32   count[2];
1840         __u32   flags;                  /* V4L2_VBI_* */
1841         __u32   reserved[2];            /* must be zero */
1842 };
1843 
1844 /*  VBI flags  */
1845 #define V4L2_VBI_UNSYNC         (1 << 0)
1846 #define V4L2_VBI_INTERLACED     (1 << 1)
1847 
1848 /* ITU-R start lines for each field */
1849 #define V4L2_VBI_ITU_525_F1_START (1)
1850 #define V4L2_VBI_ITU_525_F2_START (264)
1851 #define V4L2_VBI_ITU_625_F1_START (1)
1852 #define V4L2_VBI_ITU_625_F2_START (314)
1853 
1854 /* Sliced VBI
1855  *
1856  *    This implements is a proposal V4L2 API to allow SLICED VBI
1857  * required for some hardware encoders. It should change without
1858  * notice in the definitive implementation.
1859  */
1860 
1861 struct v4l2_sliced_vbi_format {
1862         __u16   service_set;
1863         /* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
1864            service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
1865                                  (equals frame lines 313-336 for 625 line video
1866                                   standards, 263-286 for 525 line standards) */
1867         __u16   service_lines[2][24];
1868         __u32   io_size;
1869         __u32   reserved[2];            /* must be zero */
1870 };
1871 
1872 /* Teletext World System Teletext
1873    (WST), defined on ITU-R BT.653-2 */
1874 #define V4L2_SLICED_TELETEXT_B          (0x0001)
1875 /* Video Program System, defined on ETS 300 231*/
1876 #define V4L2_SLICED_VPS                 (0x0400)
1877 /* Closed Caption, defined on EIA-608 */
1878 #define V4L2_SLICED_CAPTION_525         (0x1000)
1879 /* Wide Screen System, defined on ITU-R BT1119.1 */
1880 #define V4L2_SLICED_WSS_625             (0x4000)
1881 
1882 #define V4L2_SLICED_VBI_525             (V4L2_SLICED_CAPTION_525)
1883 #define V4L2_SLICED_VBI_625             (V4L2_SLICED_TELETEXT_B | V4L2_SLICED_VPS | V4L2_SLICED_WSS_625)
1884 
1885 struct v4l2_sliced_vbi_cap {
1886         __u16   service_set;
1887         /* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
1888            service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
1889                                  (equals frame lines 313-336 for 625 line video
1890                                   standards, 263-286 for 525 line standards) */
1891         __u16   service_lines[2][24];
1892         __u32   type;           /* enum v4l2_buf_type */
1893         __u32   reserved[3];    /* must be 0 */
1894 };
1895 
1896 struct v4l2_sliced_vbi_data {
1897         __u32   id;
1898         __u32   field;          /* 0: first field, 1: second field */
1899         __u32   line;           /* 1-23 */
1900         __u32   reserved;       /* must be 0 */
1901         __u8    data[48];
1902 };
1903 
1904 /*
1905  * Sliced VBI data inserted into MPEG Streams
1906  */
1907 
1908 /*
1909  * V4L2_MPEG_STREAM_VBI_FMT_IVTV:
1910  *
1911  * Structure of payload contained in an MPEG 2 Private Stream 1 PES Packet in an
1912  * MPEG-2 Program Pack that contains V4L2_MPEG_STREAM_VBI_FMT_IVTV Sliced VBI
1913  * data
1914  *
1915  * Note, the MPEG-2 Program Pack and Private Stream 1 PES packet header
1916  * definitions are not included here.  See the MPEG-2 specifications for details
1917  * on these headers.
1918  */
1919 
1920 /* Line type IDs */
1921 #define V4L2_MPEG_VBI_IVTV_TELETEXT_B     (1)
1922 #define V4L2_MPEG_VBI_IVTV_CAPTION_525    (4)
1923 #define V4L2_MPEG_VBI_IVTV_WSS_625        (5)
1924 #define V4L2_MPEG_VBI_IVTV_VPS            (7)
1925 
1926 struct v4l2_mpeg_vbi_itv0_line {
1927         __u8 id;        /* One of V4L2_MPEG_VBI_IVTV_* above */
1928         __u8 data[42];  /* Sliced VBI data for the line */
1929 } __attribute__ ((packed));
1930 
1931 struct v4l2_mpeg_vbi_itv0 {
1932         __le32 linemask[2]; /* Bitmasks of VBI service lines present */
1933         struct v4l2_mpeg_vbi_itv0_line line[35];
1934 } __attribute__ ((packed));
1935 
1936 struct v4l2_mpeg_vbi_ITV0 {
1937         struct v4l2_mpeg_vbi_itv0_line line[36];
1938 } __attribute__ ((packed));
1939 
1940 #define V4L2_MPEG_VBI_IVTV_MAGIC0       "itv0"
1941 #define V4L2_MPEG_VBI_IVTV_MAGIC1       "ITV0"
1942 
1943 struct v4l2_mpeg_vbi_fmt_ivtv {
1944         __u8 magic[4];
1945         union {
1946                 struct v4l2_mpeg_vbi_itv0 itv0;
1947                 struct v4l2_mpeg_vbi_ITV0 ITV0;
1948         };
1949 } __attribute__ ((packed));
1950 
1951 /*
1952  *      A G G R E G A T E   S T R U C T U R E S
1953  */
1954 
1955 /**
1956  * struct v4l2_plane_pix_format - additional, per-plane format definition
1957  * @sizeimage:          maximum size in bytes required for data, for which
1958  *                      this plane will be used
1959  * @bytesperline:       distance in bytes between the leftmost pixels in two
1960  *                      adjacent lines
1961  */
1962 struct v4l2_plane_pix_format {
1963         __u32           sizeimage;
1964         __u32           bytesperline;
1965         __u16           reserved[6];
1966 } __attribute__ ((packed));
1967 
1968 /**
1969  * struct v4l2_pix_format_mplane - multiplanar format definition
1970  * @width:              image width in pixels
1971  * @height:             image height in pixels
1972  * @pixelformat:        little endian four character code (fourcc)
1973  * @field:              enum v4l2_field; field order (for interlaced video)
1974  * @colorspace:         enum v4l2_colorspace; supplemental to pixelformat
1975  * @plane_fmt:          per-plane information
1976  * @num_planes:         number of planes for this format
1977  * @flags:              format flags (V4L2_PIX_FMT_FLAG_*)
1978  * @ycbcr_enc:          enum v4l2_ycbcr_encoding, Y'CbCr encoding
1979  * @quantization:       enum v4l2_quantization, colorspace quantization
1980  * @xfer_func:          enum v4l2_xfer_func, colorspace transfer function
1981  */
1982 struct v4l2_pix_format_mplane {
1983         __u32                           width;
1984         __u32                           height;
1985         __u32                           pixelformat;
1986         __u32                           field;
1987         __u32                           colorspace;
1988 
1989         struct v4l2_plane_pix_format    plane_fmt[VIDEO_MAX_PLANES];
1990         __u8                            num_planes;
1991         __u8                            flags;
1992         __u8                            ycbcr_enc;
1993         __u8                            quantization;
1994         __u8                            xfer_func;
1995         __u8                            reserved[7];
1996 } __attribute__ ((packed));
1997 
1998 /**
1999  * struct v4l2_sdr_format - SDR format definition
2000  * @pixelformat:        little endian four character code (fourcc)
2001  * @buffersize:         maximum size in bytes required for data
2002  */
2003 struct v4l2_sdr_format {
2004         __u32                           pixelformat;
2005         __u32                           buffersize;
2006         __u8                            reserved[24];
2007 } __attribute__ ((packed));
2008 
2009 /**
2010  * struct v4l2_format - stream data format
2011  * @type:       enum v4l2_buf_type; type of the data stream
2012  * @pix:        definition of an image format
2013  * @pix_mp:     definition of a multiplanar image format
2014  * @win:        definition of an overlaid image
2015  * @vbi:        raw VBI capture or output parameters
2016  * @sliced:     sliced VBI capture or output parameters
2017  * @raw_data:   placeholder for future extensions and custom formats
2018  */
2019 struct v4l2_format {
2020         __u32    type;
2021         union {
2022                 struct v4l2_pix_format          pix;     /* V4L2_BUF_TYPE_VIDEO_CAPTURE */
2023                 struct v4l2_pix_format_mplane   pix_mp;  /* V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE */
2024                 struct v4l2_window              win;     /* V4L2_BUF_TYPE_VIDEO_OVERLAY */
2025                 struct v4l2_vbi_format          vbi;     /* V4L2_BUF_TYPE_VBI_CAPTURE */
2026                 struct v4l2_sliced_vbi_format   sliced;  /* V4L2_BUF_TYPE_SLICED_VBI_CAPTURE */
2027                 struct v4l2_sdr_format          sdr;     /* V4L2_BUF_TYPE_SDR_CAPTURE */
2028                 __u8    raw_data[200];                   /* user-defined */
2029         } fmt;
2030 };
2031 
2032 /*      Stream type-dependent parameters
2033  */
2034 struct v4l2_streamparm {
2035         __u32    type;                  /* enum v4l2_buf_type */
2036         union {
2037                 struct v4l2_captureparm capture;
2038                 struct v4l2_outputparm  output;
2039                 __u8    raw_data[200];  /* user-defined */
2040         } parm;
2041 };
2042 
2043 /*
2044  *      E V E N T S
2045  */
2046 
2047 #define V4L2_EVENT_ALL                          0
2048 #define V4L2_EVENT_VSYNC                        1
2049 #define V4L2_EVENT_EOS                          2
2050 #define V4L2_EVENT_CTRL                         3
2051 #define V4L2_EVENT_FRAME_SYNC                   4
2052 #define V4L2_EVENT_SOURCE_CHANGE                5
2053 #define V4L2_EVENT_MOTION_DET                   6
2054 #define V4L2_EVENT_PRIVATE_START                0x08000000
2055 
2056 /* Payload for V4L2_EVENT_VSYNC */
2057 struct v4l2_event_vsync {
2058         /* Can be V4L2_FIELD_ANY, _NONE, _TOP or _BOTTOM */
2059         __u8 field;
2060 } __attribute__ ((packed));
2061 
2062 /* Payload for V4L2_EVENT_CTRL */
2063 #define V4L2_EVENT_CTRL_CH_VALUE                (1 << 0)
2064 #define V4L2_EVENT_CTRL_CH_FLAGS                (1 << 1)
2065 #define V4L2_EVENT_CTRL_CH_RANGE                (1 << 2)
2066 
2067 struct v4l2_event_ctrl {
2068         __u32 changes;
2069         __u32 type;
2070         union {
2071                 __s32 value;
2072                 __s64 value64;
2073         };
2074         __u32 flags;
2075         __s32 minimum;
2076         __s32 maximum;
2077         __s32 step;
2078         __s32 default_value;
2079 };
2080 
2081 struct v4l2_event_frame_sync {
2082         __u32 frame_sequence;
2083 };
2084 
2085 #define V4L2_EVENT_SRC_CH_RESOLUTION            (1 << 0)
2086 
2087 struct v4l2_event_src_change {
2088         __u32 changes;
2089 };
2090 
2091 #define V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ (1 << 0)
2092 
2093 /**
2094  * struct v4l2_event_motion_det - motion detection event
2095  * @flags:             if V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ is set, then the
2096  *                     frame_sequence field is valid.
2097  * @frame_sequence:    the frame sequence number associated with this event.
2098  * @region_mask:       which regions detected motion.
2099  */
2100 struct v4l2_event_motion_det {
2101         __u32 flags;
2102         __u32 frame_sequence;
2103         __u32 region_mask;
2104 };
2105 
2106 struct v4l2_event {
2107         __u32                           type;
2108         union {
2109                 struct v4l2_event_vsync         vsync;
2110                 struct v4l2_event_ctrl          ctrl;
2111                 struct v4l2_event_frame_sync    frame_sync;
2112                 struct v4l2_event_src_change    src_change;
2113                 struct v4l2_event_motion_det    motion_det;
2114                 __u8                            data[64];
2115         } u;
2116         __u32                           pending;
2117         __u32                           sequence;
2118         struct timespec                 timestamp;
2119         __u32                           id;
2120         __u32                           reserved[8];
2121 };
2122 
2123 #define V4L2_EVENT_SUB_FL_SEND_INITIAL          (1 << 0)
2124 #define V4L2_EVENT_SUB_FL_ALLOW_FEEDBACK        (1 << 1)
2125 
2126 struct v4l2_event_subscription {
2127         __u32                           type;
2128         __u32                           id;
2129         __u32                           flags;
2130         __u32                           reserved[5];
2131 };
2132 
2133 /*
2134  *      A D V A N C E D   D E B U G G I N G
2135  *
2136  *      NOTE: EXPERIMENTAL API, NEVER RELY ON THIS IN APPLICATIONS!
2137  *      FOR DEBUGGING, TESTING AND INTERNAL USE ONLY!
2138  */
2139 
2140 /* VIDIOC_DBG_G_REGISTER and VIDIOC_DBG_S_REGISTER */
2141 
2142 #define V4L2_CHIP_MATCH_BRIDGE      0  /* Match against chip ID on the bridge (0 for the bridge) */
2143 #define V4L2_CHIP_MATCH_SUBDEV      4  /* Match against subdev index */
2144 
2145 /* The following four defines are no longer in use */
2146 #define V4L2_CHIP_MATCH_HOST V4L2_CHIP_MATCH_BRIDGE
2147 #define V4L2_CHIP_MATCH_I2C_DRIVER  1  /* Match against I2C driver name */
2148 #define V4L2_CHIP_MATCH_I2C_ADDR    2  /* Match against I2C 7-bit address */
2149 #define V4L2_CHIP_MATCH_AC97        3  /* Match against ancillary AC97 chip */
2150 
2151 struct v4l2_dbg_match {
2152         __u32 type; /* Match type */
2153         union {     /* Match this chip, meaning determined by type */
2154                 __u32 addr;
2155                 char name[32];
2156         };
2157 } __attribute__ ((packed));
2158 
2159 struct v4l2_dbg_register {
2160         struct v4l2_dbg_match match;
2161         __u32 size;     /* register size in bytes */
2162         __u64 reg;
2163         __u64 val;
2164 } __attribute__ ((packed));
2165 
2166 #define V4L2_CHIP_FL_READABLE (1 << 0)
2167 #define V4L2_CHIP_FL_WRITABLE (1 << 1)
2168 
2169 /* VIDIOC_DBG_G_CHIP_INFO */
2170 struct v4l2_dbg_chip_info {
2171         struct v4l2_dbg_match match;
2172         char name[32];
2173         __u32 flags;
2174         __u32 reserved[32];
2175 } __attribute__ ((packed));
2176 
2177 /**
2178  * struct v4l2_create_buffers - VIDIOC_CREATE_BUFS argument
2179  * @index:      on return, index of the first created buffer
2180  * @count:      entry: number of requested buffers,
2181  *              return: number of created buffers
2182  * @memory:     enum v4l2_memory; buffer memory type
2183  * @format:     frame format, for which buffers are requested
2184  * @reserved:   future extensions
2185  */
2186 struct v4l2_create_buffers {
2187         __u32                   index;
2188         __u32                   count;
2189         __u32                   memory;
2190         struct v4l2_format      format;
2191         __u32                   reserved[8];
2192 };
2193 
2194 /*
2195  *      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
2196  *
2197  */
2198 #define VIDIOC_QUERYCAP          _IOR('V',  0, struct v4l2_capability)
2199 #define VIDIOC_RESERVED           _IO('V',  1)
2200 #define VIDIOC_ENUM_FMT         _IOWR('V',  2, struct v4l2_fmtdesc)
2201 #define VIDIOC_G_FMT            _IOWR('V',  4, struct v4l2_format)
2202 #define VIDIOC_S_FMT            _IOWR('V',  5, struct v4l2_format)
2203 #define VIDIOC_REQBUFS          _IOWR('V',  8, struct v4l2_requestbuffers)
2204 #define VIDIOC_QUERYBUF         _IOWR('V',  9, struct v4l2_buffer)
2205 #define VIDIOC_G_FBUF            _IOR('V', 10, struct v4l2_framebuffer)
2206 #define VIDIOC_S_FBUF            _IOW('V', 11, struct v4l2_framebuffer)
2207 #define VIDIOC_OVERLAY           _IOW('V', 14, int)
2208 #define VIDIOC_QBUF             _IOWR('V', 15, struct v4l2_buffer)
2209 #define VIDIOC_EXPBUF           _IOWR('V', 16, struct v4l2_exportbuffer)
2210 #define VIDIOC_DQBUF            _IOWR('V', 17, struct v4l2_buffer)
2211 #define VIDIOC_STREAMON          _IOW('V', 18, int)
2212 #define VIDIOC_STREAMOFF         _IOW('V', 19, int)
2213 #define VIDIOC_G_PARM           _IOWR('V', 21, struct v4l2_streamparm)
2214 #define VIDIOC_S_PARM           _IOWR('V', 22, struct v4l2_streamparm)
2215 #define VIDIOC_G_STD             _IOR('V', 23, v4l2_std_id)
2216 #define VIDIOC_S_STD             _IOW('V', 24, v4l2_std_id)
2217 #define VIDIOC_ENUMSTD          _IOWR('V', 25, struct v4l2_standard)
2218 #define VIDIOC_ENUMINPUT        _IOWR('V', 26, struct v4l2_input)
2219 #define VIDIOC_G_CTRL           _IOWR('V', 27, struct v4l2_control)
2220 #define VIDIOC_S_CTRL           _IOWR('V', 28, struct v4l2_control)
2221 #define VIDIOC_G_TUNER          _IOWR('V', 29, struct v4l2_tuner)
2222 #define VIDIOC_S_TUNER           _IOW('V', 30, struct v4l2_tuner)
2223 #define VIDIOC_G_AUDIO           _IOR('V', 33, struct v4l2_audio)
2224 #define VIDIOC_S_AUDIO           _IOW('V', 34, struct v4l2_audio)
2225 #define VIDIOC_QUERYCTRL        _IOWR('V', 36, struct v4l2_queryctrl)
2226 #define VIDIOC_QUERYMENU        _IOWR('V', 37, struct v4l2_querymenu)
2227 #define VIDIOC_G_INPUT           _IOR('V', 38, int)
2228 #define VIDIOC_S_INPUT          _IOWR('V', 39, int)
2229 #define VIDIOC_G_EDID           _IOWR('V', 40, struct v4l2_edid)
2230 #define VIDIOC_S_EDID           _IOWR('V', 41, struct v4l2_edid)
2231 #define VIDIOC_G_OUTPUT          _IOR('V', 46, int)
2232 #define VIDIOC_S_OUTPUT         _IOWR('V', 47, int)
2233 #define VIDIOC_ENUMOUTPUT       _IOWR('V', 48, struct v4l2_output)
2234 #define VIDIOC_G_AUDOUT          _IOR('V', 49, struct v4l2_audioout)
2235 #define VIDIOC_S_AUDOUT          _IOW('V', 50, struct v4l2_audioout)
2236 #define VIDIOC_G_MODULATOR      _IOWR('V', 54, struct v4l2_modulator)
2237 #define VIDIOC_S_MODULATOR       _IOW('V', 55, struct v4l2_modulator)
2238 #define VIDIOC_G_FREQUENCY      _IOWR('V', 56, struct v4l2_frequency)
2239 #define VIDIOC_S_FREQUENCY       _IOW('V', 57, struct v4l2_frequency)
2240 #define VIDIOC_CROPCAP          _IOWR('V', 58, struct v4l2_cropcap)
2241 #define VIDIOC_G_CROP           _IOWR('V', 59, struct v4l2_crop)
2242 #define VIDIOC_S_CROP            _IOW('V', 60, struct v4l2_crop)
2243 #define VIDIOC_G_JPEGCOMP        _IOR('V', 61, struct v4l2_jpegcompression)
2244 #define VIDIOC_S_JPEGCOMP        _IOW('V', 62, struct v4l2_jpegcompression)
2245 #define VIDIOC_QUERYSTD          _IOR('V', 63, v4l2_std_id)
2246 #define VIDIOC_TRY_FMT          _IOWR('V', 64, struct v4l2_format)
2247 #define VIDIOC_ENUMAUDIO        _IOWR('V', 65, struct v4l2_audio)
2248 #define VIDIOC_ENUMAUDOUT       _IOWR('V', 66, struct v4l2_audioout)
2249 #define VIDIOC_G_PRIORITY        _IOR('V', 67, __u32) /* enum v4l2_priority */
2250 #define VIDIOC_S_PRIORITY        _IOW('V', 68, __u32) /* enum v4l2_priority */
2251 #define VIDIOC_G_SLICED_VBI_CAP _IOWR('V', 69, struct v4l2_sliced_vbi_cap)
2252 #define VIDIOC_LOG_STATUS         _IO('V', 70)
2253 #define VIDIOC_G_EXT_CTRLS      _IOWR('V', 71, struct v4l2_ext_controls)
2254 #define VIDIOC_S_EXT_CTRLS      _IOWR('V', 72, struct v4l2_ext_controls)
2255 #define VIDIOC_TRY_EXT_CTRLS    _IOWR('V', 73, struct v4l2_ext_controls)
2256 #define VIDIOC_ENUM_FRAMESIZES  _IOWR('V', 74, struct v4l2_frmsizeenum)
2257 #define VIDIOC_ENUM_FRAMEINTERVALS _IOWR('V', 75, struct v4l2_frmivalenum)
2258 #define VIDIOC_G_ENC_INDEX       _IOR('V', 76, struct v4l2_enc_idx)
2259 #define VIDIOC_ENCODER_CMD      _IOWR('V', 77, struct v4l2_encoder_cmd)
2260 #define VIDIOC_TRY_ENCODER_CMD  _IOWR('V', 78, struct v4l2_encoder_cmd)
2261 
2262 /* Experimental, meant for debugging, testing and internal use.
2263    Only implemented if CONFIG_VIDEO_ADV_DEBUG is defined.
2264    You must be root to use these ioctls. Never use these in applications! */
2265 #define VIDIOC_DBG_S_REGISTER    _IOW('V', 79, struct v4l2_dbg_register)
2266 #define VIDIOC_DBG_G_REGISTER   _IOWR('V', 80, struct v4l2_dbg_register)
2267 
2268 #define VIDIOC_S_HW_FREQ_SEEK    _IOW('V', 82, struct v4l2_hw_freq_seek)
2269 
2270 #define VIDIOC_S_DV_TIMINGS     _IOWR('V', 87, struct v4l2_dv_timings)
2271 #define VIDIOC_G_DV_TIMINGS     _IOWR('V', 88, struct v4l2_dv_timings)
2272 #define VIDIOC_DQEVENT           _IOR('V', 89, struct v4l2_event)
2273 #define VIDIOC_SUBSCRIBE_EVENT   _IOW('V', 90, struct v4l2_event_subscription)
2274 #define VIDIOC_UNSUBSCRIBE_EVENT _IOW('V', 91, struct v4l2_event_subscription)
2275 
2276 /* Experimental, the below two ioctls may change over the next couple of kernel
2277    versions */
2278 #define VIDIOC_CREATE_BUFS      _IOWR('V', 92, struct v4l2_create_buffers)
2279 #define VIDIOC_PREPARE_BUF      _IOWR('V', 93, struct v4l2_buffer)
2280 
2281 /* Experimental selection API */
2282 #define VIDIOC_G_SELECTION      _IOWR('V', 94, struct v4l2_selection)
2283 #define VIDIOC_S_SELECTION      _IOWR('V', 95, struct v4l2_selection)
2284 
2285 /* Experimental, these two ioctls may change over the next couple of kernel
2286    versions. */
2287 #define VIDIOC_DECODER_CMD      _IOWR('V', 96, struct v4l2_decoder_cmd)
2288 #define VIDIOC_TRY_DECODER_CMD  _IOWR('V', 97, struct v4l2_decoder_cmd)
2289 
2290 /* Experimental, these three ioctls may change over the next couple of kernel
2291    versions. */
2292 #define VIDIOC_ENUM_DV_TIMINGS  _IOWR('V', 98, struct v4l2_enum_dv_timings)
2293 #define VIDIOC_QUERY_DV_TIMINGS  _IOR('V', 99, struct v4l2_dv_timings)
2294 #define VIDIOC_DV_TIMINGS_CAP   _IOWR('V', 100, struct v4l2_dv_timings_cap)
2295 
2296 /* Experimental, this ioctl may change over the next couple of kernel
2297    versions. */
2298 #define VIDIOC_ENUM_FREQ_BANDS  _IOWR('V', 101, struct v4l2_frequency_band)
2299 
2300 /* Experimental, meant for debugging, testing and internal use.
2301    Never use these in applications! */
2302 #define VIDIOC_DBG_G_CHIP_INFO  _IOWR('V', 102, struct v4l2_dbg_chip_info)
2303 
2304 #define VIDIOC_QUERY_EXT_CTRL   _IOWR('V', 103, struct v4l2_query_ext_ctrl)
2305 
2306 /* Reminder: when adding new ioctls please add support for them to
2307    drivers/media/v4l2-core/v4l2-compat-ioctl32.c as well! */
2308 
2309 #define BASE_VIDIOC_PRIVATE     192             /* 192-255 are private */
2310 
2311 #endif /* _UAPI__LINUX_VIDEODEV2_H */
2312 

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