1  /* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) */
2  /*
3   *  Video for Linux Two header file
4   *
5   *  Copyright (C) 1999-2012 the contributors
6   *
7   *  This program is free software; you can redistribute it and/or modify
8   *  it under the terms of the GNU General Public License as published by
9   *  the Free Software Foundation; either version 2 of the License, or
10   *  (at your option) any later version.
11   *
12   *  This program is distributed in the hope that it will be useful,
13   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
14   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   *  GNU General Public License for more details.
16   *
17   *  Alternatively you can redistribute this file under the terms of the
18   *  BSD license as stated below:
19   *
20   *  Redistribution and use in source and binary forms, with or without
21   *  modification, are permitted provided that the following conditions
22   *  are met:
23   *  1. Redistributions of source code must retain the above copyright
24   *     notice, this list of conditions and the following disclaimer.
25   *  2. Redistributions in binary form must reproduce the above copyright
26   *     notice, this list of conditions and the following disclaimer in
27   *     the documentation and/or other materials provided with the
28   *     distribution.
29   *  3. The names of its contributors may not be used to endorse or promote
30   *     products derived from this software without specific prior written
31   *     permission.
32   *
33   *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
34   *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
35   *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
36   *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
37   *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
38   *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
39   *  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
40   *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
41   *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
42   *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
43   *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
44   *
45   *	Header file for v4l or V4L2 drivers and applications
46   * with public API.
47   * All kernel-specific stuff were moved to media/v4l2-dev.h, so
48   * no #if __KERNEL tests are allowed here
49   *
50   *	See https://linuxtv.org for more info
51   *
52   *	Author: Bill Dirks <bill@thedirks.org>
53   *		Justin Schoeman
54   *              Hans Verkuil <hverkuil@xs4all.nl>
55   *		et al.
56   */
57  #ifndef _UAPI__LINUX_VIDEODEV2_H
58  #define _UAPI__LINUX_VIDEODEV2_H
59  
60  #ifndef __KERNEL__
61  #include <sys/time.h>
62  #endif
63  #include <linux/compiler.h>
64  #include <linux/ioctl.h>
65  #include <linux/types.h>
66  #include <linux/v4l2-common.h>
67  #include <linux/v4l2-controls.h>
68  
69  /*
70   * Common stuff for both V4L1 and V4L2
71   * Moved from videodev.h
72   */
73  #define VIDEO_MAX_FRAME               32
74  #define VIDEO_MAX_PLANES               8
75  
76  /*
77   *	M I S C E L L A N E O U S
78   */
79  
80  /*  Four-character-code (FOURCC) */
81  #define v4l2_fourcc(a, b, c, d)\
82  	((__u32)(a) | ((__u32)(b) << 8) | ((__u32)(c) << 16) | ((__u32)(d) << 24))
83  #define v4l2_fourcc_be(a, b, c, d)	(v4l2_fourcc(a, b, c, d) | (1U << 31))
84  
85  /*
86   *	E N U M S
87   */
88  enum v4l2_field {
89  	V4L2_FIELD_ANY           = 0, /* driver can choose from none,
90  					 top, bottom, interlaced
91  					 depending on whatever it thinks
92  					 is approximate ... */
93  	V4L2_FIELD_NONE          = 1, /* this device has no fields ... */
94  	V4L2_FIELD_TOP           = 2, /* top field only */
95  	V4L2_FIELD_BOTTOM        = 3, /* bottom field only */
96  	V4L2_FIELD_INTERLACED    = 4, /* both fields interlaced */
97  	V4L2_FIELD_SEQ_TB        = 5, /* both fields sequential into one
98  					 buffer, top-bottom order */
99  	V4L2_FIELD_SEQ_BT        = 6, /* same as above + bottom-top order */
100  	V4L2_FIELD_ALTERNATE     = 7, /* both fields alternating into
101  					 separate buffers */
102  	V4L2_FIELD_INTERLACED_TB = 8, /* both fields interlaced, top field
103  					 first and the top field is
104  					 transmitted first */
105  	V4L2_FIELD_INTERLACED_BT = 9, /* both fields interlaced, top field
106  					 first and the bottom field is
107  					 transmitted first */
108  };
109  #define V4L2_FIELD_HAS_TOP(field)	\
110  	((field) == V4L2_FIELD_TOP	||\
111  	 (field) == V4L2_FIELD_INTERLACED ||\
112  	 (field) == V4L2_FIELD_INTERLACED_TB ||\
113  	 (field) == V4L2_FIELD_INTERLACED_BT ||\
114  	 (field) == V4L2_FIELD_SEQ_TB	||\
115  	 (field) == V4L2_FIELD_SEQ_BT)
116  #define V4L2_FIELD_HAS_BOTTOM(field)	\
117  	((field) == V4L2_FIELD_BOTTOM	||\
118  	 (field) == V4L2_FIELD_INTERLACED ||\
119  	 (field) == V4L2_FIELD_INTERLACED_TB ||\
120  	 (field) == V4L2_FIELD_INTERLACED_BT ||\
121  	 (field) == V4L2_FIELD_SEQ_TB	||\
122  	 (field) == V4L2_FIELD_SEQ_BT)
123  #define V4L2_FIELD_HAS_BOTH(field)	\
124  	((field) == V4L2_FIELD_INTERLACED ||\
125  	 (field) == V4L2_FIELD_INTERLACED_TB ||\
126  	 (field) == V4L2_FIELD_INTERLACED_BT ||\
127  	 (field) == V4L2_FIELD_SEQ_TB ||\
128  	 (field) == V4L2_FIELD_SEQ_BT)
129  #define V4L2_FIELD_HAS_T_OR_B(field)	\
130  	((field) == V4L2_FIELD_BOTTOM ||\
131  	 (field) == V4L2_FIELD_TOP ||\
132  	 (field) == V4L2_FIELD_ALTERNATE)
133  #define V4L2_FIELD_IS_INTERLACED(field) \
134  	((field) == V4L2_FIELD_INTERLACED ||\
135  	 (field) == V4L2_FIELD_INTERLACED_TB ||\
136  	 (field) == V4L2_FIELD_INTERLACED_BT)
137  #define V4L2_FIELD_IS_SEQUENTIAL(field) \
138  	((field) == V4L2_FIELD_SEQ_TB ||\
139  	 (field) == V4L2_FIELD_SEQ_BT)
140  
141  enum v4l2_buf_type {
142  	V4L2_BUF_TYPE_VIDEO_CAPTURE        = 1,
143  	V4L2_BUF_TYPE_VIDEO_OUTPUT         = 2,
144  	V4L2_BUF_TYPE_VIDEO_OVERLAY        = 3,
145  	V4L2_BUF_TYPE_VBI_CAPTURE          = 4,
146  	V4L2_BUF_TYPE_VBI_OUTPUT           = 5,
147  	V4L2_BUF_TYPE_SLICED_VBI_CAPTURE   = 6,
148  	V4L2_BUF_TYPE_SLICED_VBI_OUTPUT    = 7,
149  	V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY = 8,
150  	V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE = 9,
151  	V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE  = 10,
152  	V4L2_BUF_TYPE_SDR_CAPTURE          = 11,
153  	V4L2_BUF_TYPE_SDR_OUTPUT           = 12,
154  	V4L2_BUF_TYPE_META_CAPTURE         = 13,
155  	V4L2_BUF_TYPE_META_OUTPUT	   = 14,
156  	/* Deprecated, do not use */
157  	V4L2_BUF_TYPE_PRIVATE              = 0x80,
158  };
159  
160  #define V4L2_TYPE_IS_MULTIPLANAR(type)			\
161  	((type) == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE	\
162  	 || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
163  
164  #define V4L2_TYPE_IS_OUTPUT(type)				\
165  	((type) == V4L2_BUF_TYPE_VIDEO_OUTPUT			\
166  	 || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE		\
167  	 || (type) == V4L2_BUF_TYPE_VIDEO_OVERLAY		\
168  	 || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY	\
169  	 || (type) == V4L2_BUF_TYPE_VBI_OUTPUT			\
170  	 || (type) == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT		\
171  	 || (type) == V4L2_BUF_TYPE_SDR_OUTPUT			\
172  	 || (type) == V4L2_BUF_TYPE_META_OUTPUT)
173  
174  #define V4L2_TYPE_IS_CAPTURE(type) (!V4L2_TYPE_IS_OUTPUT(type))
175  
176  enum v4l2_tuner_type {
177  	V4L2_TUNER_RADIO	     = 1,
178  	V4L2_TUNER_ANALOG_TV	     = 2,
179  	V4L2_TUNER_DIGITAL_TV	     = 3,
180  	V4L2_TUNER_SDR               = 4,
181  	V4L2_TUNER_RF                = 5,
182  };
183  
184  /* Deprecated, do not use */
185  #define V4L2_TUNER_ADC  V4L2_TUNER_SDR
186  
187  enum v4l2_memory {
188  	V4L2_MEMORY_MMAP             = 1,
189  	V4L2_MEMORY_USERPTR          = 2,
190  	V4L2_MEMORY_OVERLAY          = 3,
191  	V4L2_MEMORY_DMABUF           = 4,
192  };
193  
194  /* see also http://vektor.theorem.ca/graphics/ycbcr/ */
195  enum v4l2_colorspace {
196  	/*
197  	 * Default colorspace, i.e. let the driver figure it out.
198  	 * Can only be used with video capture.
199  	 */
200  	V4L2_COLORSPACE_DEFAULT       = 0,
201  
202  	/* SMPTE 170M: used for broadcast NTSC/PAL SDTV */
203  	V4L2_COLORSPACE_SMPTE170M     = 1,
204  
205  	/* Obsolete pre-1998 SMPTE 240M HDTV standard, superseded by Rec 709 */
206  	V4L2_COLORSPACE_SMPTE240M     = 2,
207  
208  	/* Rec.709: used for HDTV */
209  	V4L2_COLORSPACE_REC709        = 3,
210  
211  	/*
212  	 * Deprecated, do not use. No driver will ever return this. This was
213  	 * based on a misunderstanding of the bt878 datasheet.
214  	 */
215  	V4L2_COLORSPACE_BT878         = 4,
216  
217  	/*
218  	 * NTSC 1953 colorspace. This only makes sense when dealing with
219  	 * really, really old NTSC recordings. Superseded by SMPTE 170M.
220  	 */
221  	V4L2_COLORSPACE_470_SYSTEM_M  = 5,
222  
223  	/*
224  	 * EBU Tech 3213 PAL/SECAM colorspace.
225  	 */
226  	V4L2_COLORSPACE_470_SYSTEM_BG = 6,
227  
228  	/*
229  	 * Effectively shorthand for V4L2_COLORSPACE_SRGB, V4L2_YCBCR_ENC_601
230  	 * and V4L2_QUANTIZATION_FULL_RANGE. To be used for (Motion-)JPEG.
231  	 */
232  	V4L2_COLORSPACE_JPEG          = 7,
233  
234  	/* For RGB colorspaces such as produces by most webcams. */
235  	V4L2_COLORSPACE_SRGB          = 8,
236  
237  	/* opRGB colorspace */
238  	V4L2_COLORSPACE_OPRGB         = 9,
239  
240  	/* BT.2020 colorspace, used for UHDTV. */
241  	V4L2_COLORSPACE_BT2020        = 10,
242  
243  	/* Raw colorspace: for RAW unprocessed images */
244  	V4L2_COLORSPACE_RAW           = 11,
245  
246  	/* DCI-P3 colorspace, used by cinema projectors */
247  	V4L2_COLORSPACE_DCI_P3        = 12,
248  
249  #ifdef __KERNEL__
250  	/*
251  	 * Largest supported colorspace value, assigned by the compiler, used
252  	 * by the framework to check for invalid values.
253  	 */
254  	V4L2_COLORSPACE_LAST,
255  #endif
256  };
257  
258  /*
259   * Determine how COLORSPACE_DEFAULT should map to a proper colorspace.
260   * This depends on whether this is a SDTV image (use SMPTE 170M), an
261   * HDTV image (use Rec. 709), or something else (use sRGB).
262   */
263  #define V4L2_MAP_COLORSPACE_DEFAULT(is_sdtv, is_hdtv) \
264  	((is_sdtv) ? V4L2_COLORSPACE_SMPTE170M : \
265  	 ((is_hdtv) ? V4L2_COLORSPACE_REC709 : V4L2_COLORSPACE_SRGB))
266  
267  enum v4l2_xfer_func {
268  	/*
269  	 * Mapping of V4L2_XFER_FUNC_DEFAULT to actual transfer functions
270  	 * for the various colorspaces:
271  	 *
272  	 * V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M,
273  	 * V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_REC709 and
274  	 * V4L2_COLORSPACE_BT2020: V4L2_XFER_FUNC_709
275  	 *
276  	 * V4L2_COLORSPACE_SRGB, V4L2_COLORSPACE_JPEG: V4L2_XFER_FUNC_SRGB
277  	 *
278  	 * V4L2_COLORSPACE_OPRGB: V4L2_XFER_FUNC_OPRGB
279  	 *
280  	 * V4L2_COLORSPACE_SMPTE240M: V4L2_XFER_FUNC_SMPTE240M
281  	 *
282  	 * V4L2_COLORSPACE_RAW: V4L2_XFER_FUNC_NONE
283  	 *
284  	 * V4L2_COLORSPACE_DCI_P3: V4L2_XFER_FUNC_DCI_P3
285  	 */
286  	V4L2_XFER_FUNC_DEFAULT     = 0,
287  	V4L2_XFER_FUNC_709         = 1,
288  	V4L2_XFER_FUNC_SRGB        = 2,
289  	V4L2_XFER_FUNC_OPRGB       = 3,
290  	V4L2_XFER_FUNC_SMPTE240M   = 4,
291  	V4L2_XFER_FUNC_NONE        = 5,
292  	V4L2_XFER_FUNC_DCI_P3      = 6,
293  	V4L2_XFER_FUNC_SMPTE2084   = 7,
294  #ifdef __KERNEL__
295  	/*
296  	 * Largest supported transfer function value, assigned by the compiler,
297  	 * used by the framework to check for invalid values.
298  	 */
299  	V4L2_XFER_FUNC_LAST,
300  #endif
301  };
302  
303  /*
304   * Determine how XFER_FUNC_DEFAULT should map to a proper transfer function.
305   * This depends on the colorspace.
306   */
307  #define V4L2_MAP_XFER_FUNC_DEFAULT(colsp) \
308  	((colsp) == V4L2_COLORSPACE_OPRGB ? V4L2_XFER_FUNC_OPRGB : \
309  	 ((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_XFER_FUNC_SMPTE240M : \
310  	  ((colsp) == V4L2_COLORSPACE_DCI_P3 ? V4L2_XFER_FUNC_DCI_P3 : \
311  	   ((colsp) == V4L2_COLORSPACE_RAW ? V4L2_XFER_FUNC_NONE : \
312  	    ((colsp) == V4L2_COLORSPACE_SRGB || (colsp) == V4L2_COLORSPACE_JPEG ? \
313  	     V4L2_XFER_FUNC_SRGB : V4L2_XFER_FUNC_709)))))
314  
315  enum v4l2_ycbcr_encoding {
316  	/*
317  	 * Mapping of V4L2_YCBCR_ENC_DEFAULT to actual encodings for the
318  	 * various colorspaces:
319  	 *
320  	 * V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M,
321  	 * V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_SRGB,
322  	 * V4L2_COLORSPACE_OPRGB and V4L2_COLORSPACE_JPEG: V4L2_YCBCR_ENC_601
323  	 *
324  	 * V4L2_COLORSPACE_REC709 and V4L2_COLORSPACE_DCI_P3: V4L2_YCBCR_ENC_709
325  	 *
326  	 * V4L2_COLORSPACE_BT2020: V4L2_YCBCR_ENC_BT2020
327  	 *
328  	 * V4L2_COLORSPACE_SMPTE240M: V4L2_YCBCR_ENC_SMPTE240M
329  	 */
330  	V4L2_YCBCR_ENC_DEFAULT        = 0,
331  
332  	/* ITU-R 601 -- SDTV */
333  	V4L2_YCBCR_ENC_601            = 1,
334  
335  	/* Rec. 709 -- HDTV */
336  	V4L2_YCBCR_ENC_709            = 2,
337  
338  	/* ITU-R 601/EN 61966-2-4 Extended Gamut -- SDTV */
339  	V4L2_YCBCR_ENC_XV601          = 3,
340  
341  	/* Rec. 709/EN 61966-2-4 Extended Gamut -- HDTV */
342  	V4L2_YCBCR_ENC_XV709          = 4,
343  
344  #ifndef __KERNEL__
345  	/*
346  	 * sYCC (Y'CbCr encoding of sRGB), identical to ENC_601. It was added
347  	 * originally due to a misunderstanding of the sYCC standard. It should
348  	 * not be used, instead use V4L2_YCBCR_ENC_601.
349  	 */
350  	V4L2_YCBCR_ENC_SYCC           = 5,
351  #endif
352  
353  	/* BT.2020 Non-constant Luminance Y'CbCr */
354  	V4L2_YCBCR_ENC_BT2020         = 6,
355  
356  	/* BT.2020 Constant Luminance Y'CbcCrc */
357  	V4L2_YCBCR_ENC_BT2020_CONST_LUM = 7,
358  
359  	/* SMPTE 240M -- Obsolete HDTV */
360  	V4L2_YCBCR_ENC_SMPTE240M      = 8,
361  #ifdef __KERNEL__
362  	/*
363  	 * Largest supported encoding value, assigned by the compiler, used by
364  	 * the framework to check for invalid values.
365  	 */
366  	V4L2_YCBCR_ENC_LAST,
367  #endif
368  };
369  
370  /*
371   * enum v4l2_hsv_encoding values should not collide with the ones from
372   * enum v4l2_ycbcr_encoding.
373   */
374  enum v4l2_hsv_encoding {
375  
376  	/* Hue mapped to 0 - 179 */
377  	V4L2_HSV_ENC_180		= 128,
378  
379  	/* Hue mapped to 0-255 */
380  	V4L2_HSV_ENC_256		= 129,
381  };
382  
383  /*
384   * Determine how YCBCR_ENC_DEFAULT should map to a proper Y'CbCr encoding.
385   * This depends on the colorspace.
386   */
387  #define V4L2_MAP_YCBCR_ENC_DEFAULT(colsp) \
388  	(((colsp) == V4L2_COLORSPACE_REC709 || \
389  	  (colsp) == V4L2_COLORSPACE_DCI_P3) ? V4L2_YCBCR_ENC_709 : \
390  	 ((colsp) == V4L2_COLORSPACE_BT2020 ? V4L2_YCBCR_ENC_BT2020 : \
391  	  ((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_YCBCR_ENC_SMPTE240M : \
392  	   V4L2_YCBCR_ENC_601)))
393  
394  enum v4l2_quantization {
395  	/*
396  	 * The default for R'G'B' quantization is always full range.
397  	 * For Y'CbCr the quantization is always limited range, except
398  	 * for COLORSPACE_JPEG: this is full range.
399  	 */
400  	V4L2_QUANTIZATION_DEFAULT     = 0,
401  	V4L2_QUANTIZATION_FULL_RANGE  = 1,
402  	V4L2_QUANTIZATION_LIM_RANGE   = 2,
403  };
404  
405  /*
406   * Determine how QUANTIZATION_DEFAULT should map to a proper quantization.
407   * This depends on whether the image is RGB or not, the colorspace.
408   * The Y'CbCr encoding is not used anymore, but is still there for backwards
409   * compatibility.
410   */
411  #define V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb_or_hsv, colsp, ycbcr_enc) \
412  	(((is_rgb_or_hsv) || (colsp) == V4L2_COLORSPACE_JPEG) ? \
413  	 V4L2_QUANTIZATION_FULL_RANGE : V4L2_QUANTIZATION_LIM_RANGE)
414  
415  /*
416   * Deprecated names for opRGB colorspace (IEC 61966-2-5)
417   *
418   * WARNING: Please don't use these deprecated defines in your code, as
419   * there is a chance we have to remove them in the future.
420   */
421  #ifndef __KERNEL__
422  #define V4L2_COLORSPACE_ADOBERGB V4L2_COLORSPACE_OPRGB
423  #define V4L2_XFER_FUNC_ADOBERGB  V4L2_XFER_FUNC_OPRGB
424  #endif
425  
426  enum v4l2_priority {
427  	V4L2_PRIORITY_UNSET       = 0,  /* not initialized */
428  	V4L2_PRIORITY_BACKGROUND  = 1,
429  	V4L2_PRIORITY_INTERACTIVE = 2,
430  	V4L2_PRIORITY_RECORD      = 3,
431  	V4L2_PRIORITY_DEFAULT     = V4L2_PRIORITY_INTERACTIVE,
432  };
433  
434  struct v4l2_rect {
435  	__s32   left;
436  	__s32   top;
437  	__u32   width;
438  	__u32   height;
439  };
440  
441  struct v4l2_fract {
442  	__u32   numerator;
443  	__u32   denominator;
444  };
445  
446  struct v4l2_area {
447  	__u32   width;
448  	__u32   height;
449  };
450  
451  /**
452    * struct v4l2_capability - Describes V4L2 device caps returned by VIDIOC_QUERYCAP
453    *
454    * @driver:	   name of the driver module (e.g. "bttv")
455    * @card:	   name of the card (e.g. "Hauppauge WinTV")
456    * @bus_info:	   name of the bus (e.g. "PCI:" + pci_name(pci_dev) )
457    * @version:	   KERNEL_VERSION
458    * @capabilities: capabilities of the physical device as a whole
459    * @device_caps:  capabilities accessed via this particular device (node)
460    * @reserved:	   reserved fields for future extensions
461    */
462  struct v4l2_capability {
463  	__u8	driver[16];
464  	__u8	card[32];
465  	__u8	bus_info[32];
466  	__u32   version;
467  	__u32	capabilities;
468  	__u32	device_caps;
469  	__u32	reserved[3];
470  };
471  
472  /* Values for 'capabilities' field */
473  #define V4L2_CAP_VIDEO_CAPTURE		0x00000001  /* Is a video capture device */
474  #define V4L2_CAP_VIDEO_OUTPUT		0x00000002  /* Is a video output device */
475  #define V4L2_CAP_VIDEO_OVERLAY		0x00000004  /* Can do video overlay */
476  #define V4L2_CAP_VBI_CAPTURE		0x00000010  /* Is a raw VBI capture device */
477  #define V4L2_CAP_VBI_OUTPUT		0x00000020  /* Is a raw VBI output device */
478  #define V4L2_CAP_SLICED_VBI_CAPTURE	0x00000040  /* Is a sliced VBI capture device */
479  #define V4L2_CAP_SLICED_VBI_OUTPUT	0x00000080  /* Is a sliced VBI output device */
480  #define V4L2_CAP_RDS_CAPTURE		0x00000100  /* RDS data capture */
481  #define V4L2_CAP_VIDEO_OUTPUT_OVERLAY	0x00000200  /* Can do video output overlay */
482  #define V4L2_CAP_HW_FREQ_SEEK		0x00000400  /* Can do hardware frequency seek  */
483  #define V4L2_CAP_RDS_OUTPUT		0x00000800  /* Is an RDS encoder */
484  
485  /* Is a video capture device that supports multiplanar formats */
486  #define V4L2_CAP_VIDEO_CAPTURE_MPLANE	0x00001000
487  /* Is a video output device that supports multiplanar formats */
488  #define V4L2_CAP_VIDEO_OUTPUT_MPLANE	0x00002000
489  /* Is a video mem-to-mem device that supports multiplanar formats */
490  #define V4L2_CAP_VIDEO_M2M_MPLANE	0x00004000
491  /* Is a video mem-to-mem device */
492  #define V4L2_CAP_VIDEO_M2M		0x00008000
493  
494  #define V4L2_CAP_TUNER			0x00010000  /* has a tuner */
495  #define V4L2_CAP_AUDIO			0x00020000  /* has audio support */
496  #define V4L2_CAP_RADIO			0x00040000  /* is a radio device */
497  #define V4L2_CAP_MODULATOR		0x00080000  /* has a modulator */
498  
499  #define V4L2_CAP_SDR_CAPTURE		0x00100000  /* Is a SDR capture device */
500  #define V4L2_CAP_EXT_PIX_FORMAT		0x00200000  /* Supports the extended pixel format */
501  #define V4L2_CAP_SDR_OUTPUT		0x00400000  /* Is a SDR output device */
502  #define V4L2_CAP_META_CAPTURE		0x00800000  /* Is a metadata capture device */
503  
504  #define V4L2_CAP_READWRITE              0x01000000  /* read/write systemcalls */
505  #define V4L2_CAP_EDID			0x02000000  /* Is an EDID-only device */
506  #define V4L2_CAP_STREAMING              0x04000000  /* streaming I/O ioctls */
507  #define V4L2_CAP_META_OUTPUT		0x08000000  /* Is a metadata output device */
508  
509  #define V4L2_CAP_TOUCH                  0x10000000  /* Is a touch device */
510  
511  #define V4L2_CAP_IO_MC			0x20000000  /* Is input/output controlled by the media controller */
512  
513  #define V4L2_CAP_DEVICE_CAPS            0x80000000  /* sets device capabilities field */
514  
515  /*
516   *	V I D E O   I M A G E   F O R M A T
517   */
518  struct v4l2_pix_format {
519  	__u32			width;
520  	__u32			height;
521  	__u32			pixelformat;
522  	__u32			field;		/* enum v4l2_field */
523  	__u32			bytesperline;	/* for padding, zero if unused */
524  	__u32			sizeimage;
525  	__u32			colorspace;	/* enum v4l2_colorspace */
526  	__u32			priv;		/* private data, depends on pixelformat */
527  	__u32			flags;		/* format flags (V4L2_PIX_FMT_FLAG_*) */
528  	union {
529  		/* enum v4l2_ycbcr_encoding */
530  		__u32			ycbcr_enc;
531  		/* enum v4l2_hsv_encoding */
532  		__u32			hsv_enc;
533  	};
534  	__u32			quantization;	/* enum v4l2_quantization */
535  	__u32			xfer_func;	/* enum v4l2_xfer_func */
536  };
537  
538  /*      Pixel format         FOURCC                          depth  Description  */
539  
540  /* RGB formats (1 or 2 bytes per pixel) */
541  #define V4L2_PIX_FMT_RGB332  v4l2_fourcc('R', 'G', 'B', '1') /*  8  RGB-3-3-2     */
542  #define V4L2_PIX_FMT_RGB444  v4l2_fourcc('R', '4', '4', '4') /* 16  xxxxrrrr ggggbbbb */
543  #define V4L2_PIX_FMT_ARGB444 v4l2_fourcc('A', 'R', '1', '2') /* 16  aaaarrrr ggggbbbb */
544  #define V4L2_PIX_FMT_XRGB444 v4l2_fourcc('X', 'R', '1', '2') /* 16  xxxxrrrr ggggbbbb */
545  #define V4L2_PIX_FMT_RGBA444 v4l2_fourcc('R', 'A', '1', '2') /* 16  rrrrgggg bbbbaaaa */
546  #define V4L2_PIX_FMT_RGBX444 v4l2_fourcc('R', 'X', '1', '2') /* 16  rrrrgggg bbbbxxxx */
547  #define V4L2_PIX_FMT_ABGR444 v4l2_fourcc('A', 'B', '1', '2') /* 16  aaaabbbb ggggrrrr */
548  #define V4L2_PIX_FMT_XBGR444 v4l2_fourcc('X', 'B', '1', '2') /* 16  xxxxbbbb ggggrrrr */
549  #define V4L2_PIX_FMT_BGRA444 v4l2_fourcc('G', 'A', '1', '2') /* 16  bbbbgggg rrrraaaa */
550  #define V4L2_PIX_FMT_BGRX444 v4l2_fourcc('B', 'X', '1', '2') /* 16  bbbbgggg rrrrxxxx */
551  #define V4L2_PIX_FMT_RGB555  v4l2_fourcc('R', 'G', 'B', 'O') /* 16  RGB-5-5-5     */
552  #define V4L2_PIX_FMT_ARGB555 v4l2_fourcc('A', 'R', '1', '5') /* 16  ARGB-1-5-5-5  */
553  #define V4L2_PIX_FMT_XRGB555 v4l2_fourcc('X', 'R', '1', '5') /* 16  XRGB-1-5-5-5  */
554  #define V4L2_PIX_FMT_RGBA555 v4l2_fourcc('R', 'A', '1', '5') /* 16  RGBA-5-5-5-1  */
555  #define V4L2_PIX_FMT_RGBX555 v4l2_fourcc('R', 'X', '1', '5') /* 16  RGBX-5-5-5-1  */
556  #define V4L2_PIX_FMT_ABGR555 v4l2_fourcc('A', 'B', '1', '5') /* 16  ABGR-1-5-5-5  */
557  #define V4L2_PIX_FMT_XBGR555 v4l2_fourcc('X', 'B', '1', '5') /* 16  XBGR-1-5-5-5  */
558  #define V4L2_PIX_FMT_BGRA555 v4l2_fourcc('B', 'A', '1', '5') /* 16  BGRA-5-5-5-1  */
559  #define V4L2_PIX_FMT_BGRX555 v4l2_fourcc('B', 'X', '1', '5') /* 16  BGRX-5-5-5-1  */
560  #define V4L2_PIX_FMT_RGB565  v4l2_fourcc('R', 'G', 'B', 'P') /* 16  RGB-5-6-5     */
561  #define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R', 'G', 'B', 'Q') /* 16  RGB-5-5-5 BE  */
562  #define V4L2_PIX_FMT_ARGB555X v4l2_fourcc_be('A', 'R', '1', '5') /* 16  ARGB-5-5-5 BE */
563  #define V4L2_PIX_FMT_XRGB555X v4l2_fourcc_be('X', 'R', '1', '5') /* 16  XRGB-5-5-5 BE */
564  #define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R', 'G', 'B', 'R') /* 16  RGB-5-6-5 BE  */
565  
566  /* RGB formats (3 or 4 bytes per pixel) */
567  #define V4L2_PIX_FMT_BGR666  v4l2_fourcc('B', 'G', 'R', 'H') /* 18  BGR-6-6-6	  */
568  #define V4L2_PIX_FMT_BGR24   v4l2_fourcc('B', 'G', 'R', '3') /* 24  BGR-8-8-8     */
569  #define V4L2_PIX_FMT_RGB24   v4l2_fourcc('R', 'G', 'B', '3') /* 24  RGB-8-8-8     */
570  #define V4L2_PIX_FMT_BGR32   v4l2_fourcc('B', 'G', 'R', '4') /* 32  BGR-8-8-8-8   */
571  #define V4L2_PIX_FMT_ABGR32  v4l2_fourcc('A', 'R', '2', '4') /* 32  BGRA-8-8-8-8  */
572  #define V4L2_PIX_FMT_XBGR32  v4l2_fourcc('X', 'R', '2', '4') /* 32  BGRX-8-8-8-8  */
573  #define V4L2_PIX_FMT_BGRA32  v4l2_fourcc('R', 'A', '2', '4') /* 32  ABGR-8-8-8-8  */
574  #define V4L2_PIX_FMT_BGRX32  v4l2_fourcc('R', 'X', '2', '4') /* 32  XBGR-8-8-8-8  */
575  #define V4L2_PIX_FMT_RGB32   v4l2_fourcc('R', 'G', 'B', '4') /* 32  RGB-8-8-8-8   */
576  #define V4L2_PIX_FMT_RGBA32  v4l2_fourcc('A', 'B', '2', '4') /* 32  RGBA-8-8-8-8  */
577  #define V4L2_PIX_FMT_RGBX32  v4l2_fourcc('X', 'B', '2', '4') /* 32  RGBX-8-8-8-8  */
578  #define V4L2_PIX_FMT_ARGB32  v4l2_fourcc('B', 'A', '2', '4') /* 32  ARGB-8-8-8-8  */
579  #define V4L2_PIX_FMT_XRGB32  v4l2_fourcc('B', 'X', '2', '4') /* 32  XRGB-8-8-8-8  */
580  #define V4L2_PIX_FMT_RGBX1010102 v4l2_fourcc('R', 'X', '3', '0') /* 32  RGBX-10-10-10-2 */
581  #define V4L2_PIX_FMT_RGBA1010102 v4l2_fourcc('R', 'A', '3', '0') /* 32  RGBA-10-10-10-2 */
582  #define V4L2_PIX_FMT_ARGB2101010 v4l2_fourcc('A', 'R', '3', '0') /* 32  ARGB-2-10-10-10 */
583  
584  /* RGB formats (6 or 8 bytes per pixel) */
585  #define V4L2_PIX_FMT_BGR48_12    v4l2_fourcc('B', '3', '1', '2') /* 48  BGR 12-bit per component */
586  #define V4L2_PIX_FMT_BGR48       v4l2_fourcc('B', 'G', 'R', '6') /* 48  BGR 16-bit per component */
587  #define V4L2_PIX_FMT_RGB48       v4l2_fourcc('R', 'G', 'B', '6') /* 48  RGB 16-bit per component */
588  #define V4L2_PIX_FMT_ABGR64_12   v4l2_fourcc('B', '4', '1', '2') /* 64  BGRA 12-bit per component */
589  
590  /* Grey formats */
591  #define V4L2_PIX_FMT_GREY    v4l2_fourcc('G', 'R', 'E', 'Y') /*  8  Greyscale     */
592  #define V4L2_PIX_FMT_Y4      v4l2_fourcc('Y', '0', '4', ' ') /*  4  Greyscale     */
593  #define V4L2_PIX_FMT_Y6      v4l2_fourcc('Y', '0', '6', ' ') /*  6  Greyscale     */
594  #define V4L2_PIX_FMT_Y10     v4l2_fourcc('Y', '1', '0', ' ') /* 10  Greyscale     */
595  #define V4L2_PIX_FMT_Y12     v4l2_fourcc('Y', '1', '2', ' ') /* 12  Greyscale     */
596  #define V4L2_PIX_FMT_Y012    v4l2_fourcc('Y', '0', '1', '2') /* 12  Greyscale     */
597  #define V4L2_PIX_FMT_Y14     v4l2_fourcc('Y', '1', '4', ' ') /* 14  Greyscale     */
598  #define V4L2_PIX_FMT_Y16     v4l2_fourcc('Y', '1', '6', ' ') /* 16  Greyscale     */
599  #define V4L2_PIX_FMT_Y16_BE  v4l2_fourcc_be('Y', '1', '6', ' ') /* 16  Greyscale BE  */
600  
601  /* Grey bit-packed formats */
602  #define V4L2_PIX_FMT_Y10BPACK    v4l2_fourcc('Y', '1', '0', 'B') /* 10  Greyscale bit-packed */
603  #define V4L2_PIX_FMT_Y10P    v4l2_fourcc('Y', '1', '0', 'P') /* 10  Greyscale, MIPI RAW10 packed */
604  #define V4L2_PIX_FMT_IPU3_Y10		v4l2_fourcc('i', 'p', '3', 'y') /* IPU3 packed 10-bit greyscale */
605  #define V4L2_PIX_FMT_Y12P    v4l2_fourcc('Y', '1', '2', 'P') /* 12  Greyscale, MIPI RAW12 packed */
606  #define V4L2_PIX_FMT_Y14P    v4l2_fourcc('Y', '1', '4', 'P') /* 14  Greyscale, MIPI RAW14 packed */
607  
608  /* Palette formats */
609  #define V4L2_PIX_FMT_PAL8    v4l2_fourcc('P', 'A', 'L', '8') /*  8  8-bit palette */
610  
611  /* Chrominance formats */
612  #define V4L2_PIX_FMT_UV8     v4l2_fourcc('U', 'V', '8', ' ') /*  8  UV 4:4 */
613  
614  /* Luminance+Chrominance formats */
615  #define V4L2_PIX_FMT_YUYV    v4l2_fourcc('Y', 'U', 'Y', 'V') /* 16  YUV 4:2:2     */
616  #define V4L2_PIX_FMT_YYUV    v4l2_fourcc('Y', 'Y', 'U', 'V') /* 16  YUV 4:2:2     */
617  #define V4L2_PIX_FMT_YVYU    v4l2_fourcc('Y', 'V', 'Y', 'U') /* 16 YVU 4:2:2 */
618  #define V4L2_PIX_FMT_UYVY    v4l2_fourcc('U', 'Y', 'V', 'Y') /* 16  YUV 4:2:2     */
619  #define V4L2_PIX_FMT_VYUY    v4l2_fourcc('V', 'Y', 'U', 'Y') /* 16  YUV 4:2:2     */
620  #define V4L2_PIX_FMT_Y41P    v4l2_fourcc('Y', '4', '1', 'P') /* 12  YUV 4:1:1     */
621  #define V4L2_PIX_FMT_YUV444  v4l2_fourcc('Y', '4', '4', '4') /* 16  xxxxyyyy uuuuvvvv */
622  #define V4L2_PIX_FMT_YUV555  v4l2_fourcc('Y', 'U', 'V', 'O') /* 16  YUV-5-5-5     */
623  #define V4L2_PIX_FMT_YUV565  v4l2_fourcc('Y', 'U', 'V', 'P') /* 16  YUV-5-6-5     */
624  #define V4L2_PIX_FMT_YUV24   v4l2_fourcc('Y', 'U', 'V', '3') /* 24  YUV-8-8-8     */
625  #define V4L2_PIX_FMT_YUV32   v4l2_fourcc('Y', 'U', 'V', '4') /* 32  YUV-8-8-8-8   */
626  #define V4L2_PIX_FMT_AYUV32  v4l2_fourcc('A', 'Y', 'U', 'V') /* 32  AYUV-8-8-8-8  */
627  #define V4L2_PIX_FMT_XYUV32  v4l2_fourcc('X', 'Y', 'U', 'V') /* 32  XYUV-8-8-8-8  */
628  #define V4L2_PIX_FMT_VUYA32  v4l2_fourcc('V', 'U', 'Y', 'A') /* 32  VUYA-8-8-8-8  */
629  #define V4L2_PIX_FMT_VUYX32  v4l2_fourcc('V', 'U', 'Y', 'X') /* 32  VUYX-8-8-8-8  */
630  #define V4L2_PIX_FMT_YUVA32  v4l2_fourcc('Y', 'U', 'V', 'A') /* 32  YUVA-8-8-8-8  */
631  #define V4L2_PIX_FMT_YUVX32  v4l2_fourcc('Y', 'U', 'V', 'X') /* 32  YUVX-8-8-8-8  */
632  #define V4L2_PIX_FMT_M420    v4l2_fourcc('M', '4', '2', '0') /* 12  YUV 4:2:0 2 lines y, 1 line uv interleaved */
633  #define V4L2_PIX_FMT_YUV48_12    v4l2_fourcc('Y', '3', '1', '2') /* 48  YUV 4:4:4 12-bit per component */
634  
635  /*
636   * YCbCr packed format. For each Y2xx format, xx bits of valid data occupy the MSBs
637   * of the 16 bit components, and 16-xx bits of zero padding occupy the LSBs.
638   */
639  #define V4L2_PIX_FMT_Y210    v4l2_fourcc('Y', '2', '1', '0') /* 32  YUYV 4:2:2 */
640  #define V4L2_PIX_FMT_Y212    v4l2_fourcc('Y', '2', '1', '2') /* 32  YUYV 4:2:2 */
641  #define V4L2_PIX_FMT_Y216    v4l2_fourcc('Y', '2', '1', '6') /* 32  YUYV 4:2:2 */
642  
643  /* two planes -- one Y, one Cr + Cb interleaved  */
644  #define V4L2_PIX_FMT_NV12    v4l2_fourcc('N', 'V', '1', '2') /* 12  Y/CbCr 4:2:0  */
645  #define V4L2_PIX_FMT_NV21    v4l2_fourcc('N', 'V', '2', '1') /* 12  Y/CrCb 4:2:0  */
646  #define V4L2_PIX_FMT_NV16    v4l2_fourcc('N', 'V', '1', '6') /* 16  Y/CbCr 4:2:2  */
647  #define V4L2_PIX_FMT_NV61    v4l2_fourcc('N', 'V', '6', '1') /* 16  Y/CrCb 4:2:2  */
648  #define V4L2_PIX_FMT_NV24    v4l2_fourcc('N', 'V', '2', '4') /* 24  Y/CbCr 4:4:4  */
649  #define V4L2_PIX_FMT_NV42    v4l2_fourcc('N', 'V', '4', '2') /* 24  Y/CrCb 4:4:4  */
650  #define V4L2_PIX_FMT_P010    v4l2_fourcc('P', '0', '1', '0') /* 24  Y/CbCr 4:2:0 10-bit per component */
651  #define V4L2_PIX_FMT_P012    v4l2_fourcc('P', '0', '1', '2') /* 24  Y/CbCr 4:2:0 12-bit per component */
652  
653  /* two non contiguous planes - one Y, one Cr + Cb interleaved  */
654  #define V4L2_PIX_FMT_NV12M   v4l2_fourcc('N', 'M', '1', '2') /* 12  Y/CbCr 4:2:0  */
655  #define V4L2_PIX_FMT_NV21M   v4l2_fourcc('N', 'M', '2', '1') /* 21  Y/CrCb 4:2:0  */
656  #define V4L2_PIX_FMT_NV16M   v4l2_fourcc('N', 'M', '1', '6') /* 16  Y/CbCr 4:2:2  */
657  #define V4L2_PIX_FMT_NV61M   v4l2_fourcc('N', 'M', '6', '1') /* 16  Y/CrCb 4:2:2  */
658  #define V4L2_PIX_FMT_P012M   v4l2_fourcc('P', 'M', '1', '2') /* 24  Y/CbCr 4:2:0 12-bit per component */
659  
660  /* three planes - Y Cb, Cr */
661  #define V4L2_PIX_FMT_YUV410  v4l2_fourcc('Y', 'U', 'V', '9') /*  9  YUV 4:1:0     */
662  #define V4L2_PIX_FMT_YVU410  v4l2_fourcc('Y', 'V', 'U', '9') /*  9  YVU 4:1:0     */
663  #define V4L2_PIX_FMT_YUV411P v4l2_fourcc('4', '1', '1', 'P') /* 12  YVU411 planar */
664  #define V4L2_PIX_FMT_YUV420  v4l2_fourcc('Y', 'U', '1', '2') /* 12  YUV 4:2:0     */
665  #define V4L2_PIX_FMT_YVU420  v4l2_fourcc('Y', 'V', '1', '2') /* 12  YVU 4:2:0     */
666  #define V4L2_PIX_FMT_YUV422P v4l2_fourcc('4', '2', '2', 'P') /* 16  YVU422 planar */
667  
668  /* three non contiguous planes - Y, Cb, Cr */
669  #define V4L2_PIX_FMT_YUV420M v4l2_fourcc('Y', 'M', '1', '2') /* 12  YUV420 planar */
670  #define V4L2_PIX_FMT_YVU420M v4l2_fourcc('Y', 'M', '2', '1') /* 12  YVU420 planar */
671  #define V4L2_PIX_FMT_YUV422M v4l2_fourcc('Y', 'M', '1', '6') /* 16  YUV422 planar */
672  #define V4L2_PIX_FMT_YVU422M v4l2_fourcc('Y', 'M', '6', '1') /* 16  YVU422 planar */
673  #define V4L2_PIX_FMT_YUV444M v4l2_fourcc('Y', 'M', '2', '4') /* 24  YUV444 planar */
674  #define V4L2_PIX_FMT_YVU444M v4l2_fourcc('Y', 'M', '4', '2') /* 24  YVU444 planar */
675  
676  /* Tiled YUV formats */
677  #define V4L2_PIX_FMT_NV12_4L4 v4l2_fourcc('V', 'T', '1', '2')   /* 12  Y/CbCr 4:2:0  4x4 tiles */
678  #define V4L2_PIX_FMT_NV12_16L16 v4l2_fourcc('H', 'M', '1', '2') /* 12  Y/CbCr 4:2:0 16x16 tiles */
679  #define V4L2_PIX_FMT_NV12_32L32 v4l2_fourcc('S', 'T', '1', '2') /* 12  Y/CbCr 4:2:0 32x32 tiles */
680  #define V4L2_PIX_FMT_NV15_4L4 v4l2_fourcc('V', 'T', '1', '5') /* 15 Y/CbCr 4:2:0 10-bit 4x4 tiles */
681  #define V4L2_PIX_FMT_P010_4L4 v4l2_fourcc('T', '0', '1', '0') /* 12  Y/CbCr 4:2:0 10-bit 4x4 macroblocks */
682  #define V4L2_PIX_FMT_NV12_8L128       v4l2_fourcc('A', 'T', '1', '2') /* Y/CbCr 4:2:0 8x128 tiles */
683  #define V4L2_PIX_FMT_NV12_10BE_8L128  v4l2_fourcc_be('A', 'X', '1', '2') /* Y/CbCr 4:2:0 10-bit 8x128 tiles */
684  
685  /* Tiled YUV formats, non contiguous planes */
686  #define V4L2_PIX_FMT_NV12MT  v4l2_fourcc('T', 'M', '1', '2') /* 12  Y/CbCr 4:2:0 64x32 tiles */
687  #define V4L2_PIX_FMT_NV12MT_16X16 v4l2_fourcc('V', 'M', '1', '2') /* 12  Y/CbCr 4:2:0 16x16 tiles */
688  #define V4L2_PIX_FMT_NV12M_8L128      v4l2_fourcc('N', 'A', '1', '2') /* Y/CbCr 4:2:0 8x128 tiles */
689  #define V4L2_PIX_FMT_NV12M_10BE_8L128 v4l2_fourcc_be('N', 'T', '1', '2') /* Y/CbCr 4:2:0 10-bit 8x128 tiles */
690  
691  /* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */
692  #define V4L2_PIX_FMT_SBGGR8  v4l2_fourcc('B', 'A', '8', '1') /*  8  BGBG.. GRGR.. */
693  #define V4L2_PIX_FMT_SGBRG8  v4l2_fourcc('G', 'B', 'R', 'G') /*  8  GBGB.. RGRG.. */
694  #define V4L2_PIX_FMT_SGRBG8  v4l2_fourcc('G', 'R', 'B', 'G') /*  8  GRGR.. BGBG.. */
695  #define V4L2_PIX_FMT_SRGGB8  v4l2_fourcc('R', 'G', 'G', 'B') /*  8  RGRG.. GBGB.. */
696  #define V4L2_PIX_FMT_SBGGR10 v4l2_fourcc('B', 'G', '1', '0') /* 10  BGBG.. GRGR.. */
697  #define V4L2_PIX_FMT_SGBRG10 v4l2_fourcc('G', 'B', '1', '0') /* 10  GBGB.. RGRG.. */
698  #define V4L2_PIX_FMT_SGRBG10 v4l2_fourcc('B', 'A', '1', '0') /* 10  GRGR.. BGBG.. */
699  #define V4L2_PIX_FMT_SRGGB10 v4l2_fourcc('R', 'G', '1', '0') /* 10  RGRG.. GBGB.. */
700  	/* 10bit raw bayer packed, 5 bytes for every 4 pixels */
701  #define V4L2_PIX_FMT_SBGGR10P v4l2_fourcc('p', 'B', 'A', 'A')
702  #define V4L2_PIX_FMT_SGBRG10P v4l2_fourcc('p', 'G', 'A', 'A')
703  #define V4L2_PIX_FMT_SGRBG10P v4l2_fourcc('p', 'g', 'A', 'A')
704  #define V4L2_PIX_FMT_SRGGB10P v4l2_fourcc('p', 'R', 'A', 'A')
705  	/* 10bit raw bayer a-law compressed to 8 bits */
706  #define V4L2_PIX_FMT_SBGGR10ALAW8 v4l2_fourcc('a', 'B', 'A', '8')
707  #define V4L2_PIX_FMT_SGBRG10ALAW8 v4l2_fourcc('a', 'G', 'A', '8')
708  #define V4L2_PIX_FMT_SGRBG10ALAW8 v4l2_fourcc('a', 'g', 'A', '8')
709  #define V4L2_PIX_FMT_SRGGB10ALAW8 v4l2_fourcc('a', 'R', 'A', '8')
710  	/* 10bit raw bayer DPCM compressed to 8 bits */
711  #define V4L2_PIX_FMT_SBGGR10DPCM8 v4l2_fourcc('b', 'B', 'A', '8')
712  #define V4L2_PIX_FMT_SGBRG10DPCM8 v4l2_fourcc('b', 'G', 'A', '8')
713  #define V4L2_PIX_FMT_SGRBG10DPCM8 v4l2_fourcc('B', 'D', '1', '0')
714  #define V4L2_PIX_FMT_SRGGB10DPCM8 v4l2_fourcc('b', 'R', 'A', '8')
715  #define V4L2_PIX_FMT_SBGGR12 v4l2_fourcc('B', 'G', '1', '2') /* 12  BGBG.. GRGR.. */
716  #define V4L2_PIX_FMT_SGBRG12 v4l2_fourcc('G', 'B', '1', '2') /* 12  GBGB.. RGRG.. */
717  #define V4L2_PIX_FMT_SGRBG12 v4l2_fourcc('B', 'A', '1', '2') /* 12  GRGR.. BGBG.. */
718  #define V4L2_PIX_FMT_SRGGB12 v4l2_fourcc('R', 'G', '1', '2') /* 12  RGRG.. GBGB.. */
719  	/* 12bit raw bayer packed, 6 bytes for every 4 pixels */
720  #define V4L2_PIX_FMT_SBGGR12P v4l2_fourcc('p', 'B', 'C', 'C')
721  #define V4L2_PIX_FMT_SGBRG12P v4l2_fourcc('p', 'G', 'C', 'C')
722  #define V4L2_PIX_FMT_SGRBG12P v4l2_fourcc('p', 'g', 'C', 'C')
723  #define V4L2_PIX_FMT_SRGGB12P v4l2_fourcc('p', 'R', 'C', 'C')
724  #define V4L2_PIX_FMT_SBGGR14 v4l2_fourcc('B', 'G', '1', '4') /* 14  BGBG.. GRGR.. */
725  #define V4L2_PIX_FMT_SGBRG14 v4l2_fourcc('G', 'B', '1', '4') /* 14  GBGB.. RGRG.. */
726  #define V4L2_PIX_FMT_SGRBG14 v4l2_fourcc('G', 'R', '1', '4') /* 14  GRGR.. BGBG.. */
727  #define V4L2_PIX_FMT_SRGGB14 v4l2_fourcc('R', 'G', '1', '4') /* 14  RGRG.. GBGB.. */
728  	/* 14bit raw bayer packed, 7 bytes for every 4 pixels */
729  #define V4L2_PIX_FMT_SBGGR14P v4l2_fourcc('p', 'B', 'E', 'E')
730  #define V4L2_PIX_FMT_SGBRG14P v4l2_fourcc('p', 'G', 'E', 'E')
731  #define V4L2_PIX_FMT_SGRBG14P v4l2_fourcc('p', 'g', 'E', 'E')
732  #define V4L2_PIX_FMT_SRGGB14P v4l2_fourcc('p', 'R', 'E', 'E')
733  #define V4L2_PIX_FMT_SBGGR16 v4l2_fourcc('B', 'Y', 'R', '2') /* 16  BGBG.. GRGR.. */
734  #define V4L2_PIX_FMT_SGBRG16 v4l2_fourcc('G', 'B', '1', '6') /* 16  GBGB.. RGRG.. */
735  #define V4L2_PIX_FMT_SGRBG16 v4l2_fourcc('G', 'R', '1', '6') /* 16  GRGR.. BGBG.. */
736  #define V4L2_PIX_FMT_SRGGB16 v4l2_fourcc('R', 'G', '1', '6') /* 16  RGRG.. GBGB.. */
737  
738  /* HSV formats */
739  #define V4L2_PIX_FMT_HSV24 v4l2_fourcc('H', 'S', 'V', '3')
740  #define V4L2_PIX_FMT_HSV32 v4l2_fourcc('H', 'S', 'V', '4')
741  
742  /* compressed formats */
743  #define V4L2_PIX_FMT_MJPEG    v4l2_fourcc('M', 'J', 'P', 'G') /* Motion-JPEG   */
744  #define V4L2_PIX_FMT_JPEG     v4l2_fourcc('J', 'P', 'E', 'G') /* JFIF JPEG     */
745  #define V4L2_PIX_FMT_DV       v4l2_fourcc('d', 'v', 's', 'd') /* 1394          */
746  #define V4L2_PIX_FMT_MPEG     v4l2_fourcc('M', 'P', 'E', 'G') /* MPEG-1/2/4 Multiplexed */
747  #define V4L2_PIX_FMT_H264     v4l2_fourcc('H', '2', '6', '4') /* H264 with start codes */
748  #define V4L2_PIX_FMT_H264_NO_SC v4l2_fourcc('A', 'V', 'C', '1') /* H264 without start codes */
749  #define V4L2_PIX_FMT_H264_MVC v4l2_fourcc('M', '2', '6', '4') /* H264 MVC */
750  #define V4L2_PIX_FMT_H263     v4l2_fourcc('H', '2', '6', '3') /* H263          */
751  #define V4L2_PIX_FMT_MPEG1    v4l2_fourcc('M', 'P', 'G', '1') /* MPEG-1 ES     */
752  #define V4L2_PIX_FMT_MPEG2    v4l2_fourcc('M', 'P', 'G', '2') /* MPEG-2 ES     */
753  #define V4L2_PIX_FMT_MPEG2_SLICE v4l2_fourcc('M', 'G', '2', 'S') /* MPEG-2 parsed slice data */
754  #define V4L2_PIX_FMT_MPEG4    v4l2_fourcc('M', 'P', 'G', '4') /* MPEG-4 part 2 ES */
755  #define V4L2_PIX_FMT_XVID     v4l2_fourcc('X', 'V', 'I', 'D') /* Xvid           */
756  #define V4L2_PIX_FMT_VC1_ANNEX_G v4l2_fourcc('V', 'C', '1', 'G') /* SMPTE 421M Annex G compliant stream */
757  #define V4L2_PIX_FMT_VC1_ANNEX_L v4l2_fourcc('V', 'C', '1', 'L') /* SMPTE 421M Annex L compliant stream */
758  #define V4L2_PIX_FMT_VP8      v4l2_fourcc('V', 'P', '8', '0') /* VP8 */
759  #define V4L2_PIX_FMT_VP8_FRAME v4l2_fourcc('V', 'P', '8', 'F') /* VP8 parsed frame */
760  #define V4L2_PIX_FMT_VP9      v4l2_fourcc('V', 'P', '9', '0') /* VP9 */
761  #define V4L2_PIX_FMT_VP9_FRAME v4l2_fourcc('V', 'P', '9', 'F') /* VP9 parsed frame */
762  #define V4L2_PIX_FMT_HEVC     v4l2_fourcc('H', 'E', 'V', 'C') /* HEVC aka H.265 */
763  #define V4L2_PIX_FMT_FWHT     v4l2_fourcc('F', 'W', 'H', 'T') /* Fast Walsh Hadamard Transform (vicodec) */
764  #define V4L2_PIX_FMT_FWHT_STATELESS     v4l2_fourcc('S', 'F', 'W', 'H') /* Stateless FWHT (vicodec) */
765  #define V4L2_PIX_FMT_H264_SLICE v4l2_fourcc('S', '2', '6', '4') /* H264 parsed slices */
766  #define V4L2_PIX_FMT_HEVC_SLICE v4l2_fourcc('S', '2', '6', '5') /* HEVC parsed slices */
767  #define V4L2_PIX_FMT_AV1_FRAME v4l2_fourcc('A', 'V', '1', 'F') /* AV1 parsed frame */
768  #define V4L2_PIX_FMT_SPK      v4l2_fourcc('S', 'P', 'K', '0') /* Sorenson Spark */
769  #define V4L2_PIX_FMT_RV30     v4l2_fourcc('R', 'V', '3', '0') /* RealVideo 8 */
770  #define V4L2_PIX_FMT_RV40     v4l2_fourcc('R', 'V', '4', '0') /* RealVideo 9 & 10 */
771  
772  /*  Vendor-specific formats   */
773  #define V4L2_PIX_FMT_CPIA1    v4l2_fourcc('C', 'P', 'I', 'A') /* cpia1 YUV */
774  #define V4L2_PIX_FMT_WNVA     v4l2_fourcc('W', 'N', 'V', 'A') /* Winnov hw compress */
775  #define V4L2_PIX_FMT_SN9C10X  v4l2_fourcc('S', '9', '1', '0') /* SN9C10x compression */
776  #define V4L2_PIX_FMT_SN9C20X_I420 v4l2_fourcc('S', '9', '2', '0') /* SN9C20x YUV 4:2:0 */
777  #define V4L2_PIX_FMT_PWC1     v4l2_fourcc('P', 'W', 'C', '1') /* pwc older webcam */
778  #define V4L2_PIX_FMT_PWC2     v4l2_fourcc('P', 'W', 'C', '2') /* pwc newer webcam */
779  #define V4L2_PIX_FMT_ET61X251 v4l2_fourcc('E', '6', '2', '5') /* ET61X251 compression */
780  #define V4L2_PIX_FMT_SPCA501  v4l2_fourcc('S', '5', '0', '1') /* YUYV per line */
781  #define V4L2_PIX_FMT_SPCA505  v4l2_fourcc('S', '5', '0', '5') /* YYUV per line */
782  #define V4L2_PIX_FMT_SPCA508  v4l2_fourcc('S', '5', '0', '8') /* YUVY per line */
783  #define V4L2_PIX_FMT_SPCA561  v4l2_fourcc('S', '5', '6', '1') /* compressed GBRG bayer */
784  #define V4L2_PIX_FMT_PAC207   v4l2_fourcc('P', '2', '0', '7') /* compressed BGGR bayer */
785  #define V4L2_PIX_FMT_MR97310A v4l2_fourcc('M', '3', '1', '0') /* compressed BGGR bayer */
786  #define V4L2_PIX_FMT_JL2005BCD v4l2_fourcc('J', 'L', '2', '0') /* compressed RGGB bayer */
787  #define V4L2_PIX_FMT_SN9C2028 v4l2_fourcc('S', 'O', 'N', 'X') /* compressed GBRG bayer */
788  #define V4L2_PIX_FMT_SQ905C   v4l2_fourcc('9', '0', '5', 'C') /* compressed RGGB bayer */
789  #define V4L2_PIX_FMT_PJPG     v4l2_fourcc('P', 'J', 'P', 'G') /* Pixart 73xx JPEG */
790  #define V4L2_PIX_FMT_OV511    v4l2_fourcc('O', '5', '1', '1') /* ov511 JPEG */
791  #define V4L2_PIX_FMT_OV518    v4l2_fourcc('O', '5', '1', '8') /* ov518 JPEG */
792  #define V4L2_PIX_FMT_STV0680  v4l2_fourcc('S', '6', '8', '0') /* stv0680 bayer */
793  #define V4L2_PIX_FMT_TM6000   v4l2_fourcc('T', 'M', '6', '0') /* tm5600/tm60x0 */
794  #define V4L2_PIX_FMT_CIT_YYVYUY v4l2_fourcc('C', 'I', 'T', 'V') /* one line of Y then 1 line of VYUY */
795  #define V4L2_PIX_FMT_KONICA420  v4l2_fourcc('K', 'O', 'N', 'I') /* YUV420 planar in blocks of 256 pixels */
796  #define V4L2_PIX_FMT_JPGL	v4l2_fourcc('J', 'P', 'G', 'L') /* JPEG-Lite */
797  #define V4L2_PIX_FMT_SE401      v4l2_fourcc('S', '4', '0', '1') /* se401 janggu compressed rgb */
798  #define V4L2_PIX_FMT_S5C_UYVY_JPG v4l2_fourcc('S', '5', 'C', 'I') /* S5C73M3 interleaved UYVY/JPEG */
799  #define V4L2_PIX_FMT_Y8I      v4l2_fourcc('Y', '8', 'I', ' ') /* Greyscale 8-bit L/R interleaved */
800  #define V4L2_PIX_FMT_Y12I     v4l2_fourcc('Y', '1', '2', 'I') /* Greyscale 12-bit L/R interleaved */
801  #define V4L2_PIX_FMT_Z16      v4l2_fourcc('Z', '1', '6', ' ') /* Depth data 16-bit */
802  #define V4L2_PIX_FMT_MT21C    v4l2_fourcc('M', 'T', '2', '1') /* Mediatek compressed block mode  */
803  #define V4L2_PIX_FMT_MM21     v4l2_fourcc('M', 'M', '2', '1') /* Mediatek 8-bit block mode, two non-contiguous planes */
804  #define V4L2_PIX_FMT_MT2110T  v4l2_fourcc('M', 'T', '2', 'T') /* Mediatek 10-bit block tile mode */
805  #define V4L2_PIX_FMT_MT2110R  v4l2_fourcc('M', 'T', '2', 'R') /* Mediatek 10-bit block raster mode */
806  #define V4L2_PIX_FMT_INZI     v4l2_fourcc('I', 'N', 'Z', 'I') /* Intel Planar Greyscale 10-bit and Depth 16-bit */
807  #define V4L2_PIX_FMT_CNF4     v4l2_fourcc('C', 'N', 'F', '4') /* Intel 4-bit packed depth confidence information */
808  #define V4L2_PIX_FMT_HI240    v4l2_fourcc('H', 'I', '2', '4') /* BTTV 8-bit dithered RGB */
809  #define V4L2_PIX_FMT_QC08C    v4l2_fourcc('Q', '0', '8', 'C') /* Qualcomm 8-bit compressed */
810  #define V4L2_PIX_FMT_QC10C    v4l2_fourcc('Q', '1', '0', 'C') /* Qualcomm 10-bit compressed */
811  #define V4L2_PIX_FMT_AJPG     v4l2_fourcc('A', 'J', 'P', 'G') /* Aspeed JPEG */
812  #define V4L2_PIX_FMT_HEXTILE  v4l2_fourcc('H', 'X', 'T', 'L') /* Hextile compressed */
813  
814  /* 10bit raw packed, 32 bytes for every 25 pixels, last LSB 6 bits unused */
815  #define V4L2_PIX_FMT_IPU3_SBGGR10	v4l2_fourcc('i', 'p', '3', 'b') /* IPU3 packed 10-bit BGGR bayer */
816  #define V4L2_PIX_FMT_IPU3_SGBRG10	v4l2_fourcc('i', 'p', '3', 'g') /* IPU3 packed 10-bit GBRG bayer */
817  #define V4L2_PIX_FMT_IPU3_SGRBG10	v4l2_fourcc('i', 'p', '3', 'G') /* IPU3 packed 10-bit GRBG bayer */
818  #define V4L2_PIX_FMT_IPU3_SRGGB10	v4l2_fourcc('i', 'p', '3', 'r') /* IPU3 packed 10-bit RGGB bayer */
819  
820  /* Raspberry Pi PiSP compressed formats. */
821  #define V4L2_PIX_FMT_PISP_COMP1_RGGB	v4l2_fourcc('P', 'C', '1', 'R') /* PiSP 8-bit mode 1 compressed RGGB bayer */
822  #define V4L2_PIX_FMT_PISP_COMP1_GRBG	v4l2_fourcc('P', 'C', '1', 'G') /* PiSP 8-bit mode 1 compressed GRBG bayer */
823  #define V4L2_PIX_FMT_PISP_COMP1_GBRG	v4l2_fourcc('P', 'C', '1', 'g') /* PiSP 8-bit mode 1 compressed GBRG bayer */
824  #define V4L2_PIX_FMT_PISP_COMP1_BGGR	v4l2_fourcc('P', 'C', '1', 'B') /* PiSP 8-bit mode 1 compressed BGGR bayer */
825  #define V4L2_PIX_FMT_PISP_COMP1_MONO	v4l2_fourcc('P', 'C', '1', 'M') /* PiSP 8-bit mode 1 compressed monochrome */
826  #define V4L2_PIX_FMT_PISP_COMP2_RGGB	v4l2_fourcc('P', 'C', '2', 'R') /* PiSP 8-bit mode 2 compressed RGGB bayer */
827  #define V4L2_PIX_FMT_PISP_COMP2_GRBG	v4l2_fourcc('P', 'C', '2', 'G') /* PiSP 8-bit mode 2 compressed GRBG bayer */
828  #define V4L2_PIX_FMT_PISP_COMP2_GBRG	v4l2_fourcc('P', 'C', '2', 'g') /* PiSP 8-bit mode 2 compressed GBRG bayer */
829  #define V4L2_PIX_FMT_PISP_COMP2_BGGR	v4l2_fourcc('P', 'C', '2', 'B') /* PiSP 8-bit mode 2 compressed BGGR bayer */
830  #define V4L2_PIX_FMT_PISP_COMP2_MONO	v4l2_fourcc('P', 'C', '2', 'M') /* PiSP 8-bit mode 2 compressed monochrome */
831  
832  /* SDR formats - used only for Software Defined Radio devices */
833  #define V4L2_SDR_FMT_CU8          v4l2_fourcc('C', 'U', '0', '8') /* IQ u8 */
834  #define V4L2_SDR_FMT_CU16LE       v4l2_fourcc('C', 'U', '1', '6') /* IQ u16le */
835  #define V4L2_SDR_FMT_CS8          v4l2_fourcc('C', 'S', '0', '8') /* complex s8 */
836  #define V4L2_SDR_FMT_CS14LE       v4l2_fourcc('C', 'S', '1', '4') /* complex s14le */
837  #define V4L2_SDR_FMT_RU12LE       v4l2_fourcc('R', 'U', '1', '2') /* real u12le */
838  #define V4L2_SDR_FMT_PCU16BE	  v4l2_fourcc('P', 'C', '1', '6') /* planar complex u16be */
839  #define V4L2_SDR_FMT_PCU18BE	  v4l2_fourcc('P', 'C', '1', '8') /* planar complex u18be */
840  #define V4L2_SDR_FMT_PCU20BE	  v4l2_fourcc('P', 'C', '2', '0') /* planar complex u20be */
841  
842  /* Touch formats - used for Touch devices */
843  #define V4L2_TCH_FMT_DELTA_TD16	v4l2_fourcc('T', 'D', '1', '6') /* 16-bit signed deltas */
844  #define V4L2_TCH_FMT_DELTA_TD08	v4l2_fourcc('T', 'D', '0', '8') /* 8-bit signed deltas */
845  #define V4L2_TCH_FMT_TU16	v4l2_fourcc('T', 'U', '1', '6') /* 16-bit unsigned touch data */
846  #define V4L2_TCH_FMT_TU08	v4l2_fourcc('T', 'U', '0', '8') /* 8-bit unsigned touch data */
847  
848  /* Meta-data formats */
849  #define V4L2_META_FMT_VSP1_HGO    v4l2_fourcc('V', 'S', 'P', 'H') /* R-Car VSP1 1-D Histogram */
850  #define V4L2_META_FMT_VSP1_HGT    v4l2_fourcc('V', 'S', 'P', 'T') /* R-Car VSP1 2-D Histogram */
851  #define V4L2_META_FMT_UVC         v4l2_fourcc('U', 'V', 'C', 'H') /* UVC Payload Header metadata */
852  #define V4L2_META_FMT_D4XX        v4l2_fourcc('D', '4', 'X', 'X') /* D4XX Payload Header metadata */
853  #define V4L2_META_FMT_VIVID	  v4l2_fourcc('V', 'I', 'V', 'D') /* Vivid Metadata */
854  
855  /* Vendor specific - used for RK_ISP1 camera sub-system */
856  #define V4L2_META_FMT_RK_ISP1_PARAMS	v4l2_fourcc('R', 'K', '1', 'P') /* Rockchip ISP1 3A Parameters */
857  #define V4L2_META_FMT_RK_ISP1_STAT_3A	v4l2_fourcc('R', 'K', '1', 'S') /* Rockchip ISP1 3A Statistics */
858  #define V4L2_META_FMT_RK_ISP1_EXT_PARAMS	v4l2_fourcc('R', 'K', '1', 'E') /* Rockchip ISP1 3a Extensible Parameters */
859  
860  /* Vendor specific - used for RaspberryPi PiSP */
861  #define V4L2_META_FMT_RPI_BE_CFG	v4l2_fourcc('R', 'P', 'B', 'C') /* PiSP BE configuration */
862  
863  #ifdef __KERNEL__
864  /*
865   * Line-based metadata formats. Remember to update v4l_fill_fmtdesc() when
866   * adding new ones!
867   */
868  #define V4L2_META_FMT_GENERIC_8		v4l2_fourcc('M', 'E', 'T', '8') /* Generic 8-bit metadata */
869  #define V4L2_META_FMT_GENERIC_CSI2_10	v4l2_fourcc('M', 'C', '1', 'A') /* 10-bit CSI-2 packed 8-bit metadata */
870  #define V4L2_META_FMT_GENERIC_CSI2_12	v4l2_fourcc('M', 'C', '1', 'C') /* 12-bit CSI-2 packed 8-bit metadata */
871  #define V4L2_META_FMT_GENERIC_CSI2_14	v4l2_fourcc('M', 'C', '1', 'E') /* 14-bit CSI-2 packed 8-bit metadata */
872  #define V4L2_META_FMT_GENERIC_CSI2_16	v4l2_fourcc('M', 'C', '1', 'G') /* 16-bit CSI-2 packed 8-bit metadata */
873  #define V4L2_META_FMT_GENERIC_CSI2_20	v4l2_fourcc('M', 'C', '1', 'K') /* 20-bit CSI-2 packed 8-bit metadata */
874  #define V4L2_META_FMT_GENERIC_CSI2_24	v4l2_fourcc('M', 'C', '1', 'O') /* 24-bit CSI-2 packed 8-bit metadata */
875  #endif
876  
877  /* priv field value to indicates that subsequent fields are valid. */
878  #define V4L2_PIX_FMT_PRIV_MAGIC		0xfeedcafe
879  
880  /* Flags */
881  #define V4L2_PIX_FMT_FLAG_PREMUL_ALPHA	0x00000001
882  #define V4L2_PIX_FMT_FLAG_SET_CSC	0x00000002
883  
884  /*
885   *	F O R M A T   E N U M E R A T I O N
886   */
887  struct v4l2_fmtdesc {
888  	__u32		    index;             /* Format number      */
889  	__u32		    type;              /* enum v4l2_buf_type */
890  	__u32               flags;
891  	__u8		    description[32];   /* Description string */
892  	__u32		    pixelformat;       /* Format fourcc      */
893  	__u32		    mbus_code;		/* Media bus code    */
894  	__u32		    reserved[3];
895  };
896  
897  #define V4L2_FMT_FLAG_COMPRESSED		0x0001
898  #define V4L2_FMT_FLAG_EMULATED			0x0002
899  #define V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM	0x0004
900  #define V4L2_FMT_FLAG_DYN_RESOLUTION		0x0008
901  #define V4L2_FMT_FLAG_ENC_CAP_FRAME_INTERVAL	0x0010
902  #define V4L2_FMT_FLAG_CSC_COLORSPACE		0x0020
903  #define V4L2_FMT_FLAG_CSC_XFER_FUNC		0x0040
904  #define V4L2_FMT_FLAG_CSC_YCBCR_ENC		0x0080
905  #define V4L2_FMT_FLAG_CSC_HSV_ENC		V4L2_FMT_FLAG_CSC_YCBCR_ENC
906  #define V4L2_FMT_FLAG_CSC_QUANTIZATION		0x0100
907  #define V4L2_FMT_FLAG_META_LINE_BASED		0x0200
908  
909  	/* Frame Size and frame rate enumeration */
910  /*
911   *	F R A M E   S I Z E   E N U M E R A T I O N
912   */
913  enum v4l2_frmsizetypes {
914  	V4L2_FRMSIZE_TYPE_DISCRETE	= 1,
915  	V4L2_FRMSIZE_TYPE_CONTINUOUS	= 2,
916  	V4L2_FRMSIZE_TYPE_STEPWISE	= 3,
917  };
918  
919  struct v4l2_frmsize_discrete {
920  	__u32			width;		/* Frame width [pixel] */
921  	__u32			height;		/* Frame height [pixel] */
922  };
923  
924  struct v4l2_frmsize_stepwise {
925  	__u32			min_width;	/* Minimum frame width [pixel] */
926  	__u32			max_width;	/* Maximum frame width [pixel] */
927  	__u32			step_width;	/* Frame width step size [pixel] */
928  	__u32			min_height;	/* Minimum frame height [pixel] */
929  	__u32			max_height;	/* Maximum frame height [pixel] */
930  	__u32			step_height;	/* Frame height step size [pixel] */
931  };
932  
933  struct v4l2_frmsizeenum {
934  	__u32			index;		/* Frame size number */
935  	__u32			pixel_format;	/* Pixel format */
936  	__u32			type;		/* Frame size type the device supports. */
937  
938  	union {					/* Frame size */
939  		struct v4l2_frmsize_discrete	discrete;
940  		struct v4l2_frmsize_stepwise	stepwise;
941  	};
942  
943  	__u32   reserved[2];			/* Reserved space for future use */
944  };
945  
946  /*
947   *	F R A M E   R A T E   E N U M E R A T I O N
948   */
949  enum v4l2_frmivaltypes {
950  	V4L2_FRMIVAL_TYPE_DISCRETE	= 1,
951  	V4L2_FRMIVAL_TYPE_CONTINUOUS	= 2,
952  	V4L2_FRMIVAL_TYPE_STEPWISE	= 3,
953  };
954  
955  struct v4l2_frmival_stepwise {
956  	struct v4l2_fract	min;		/* Minimum frame interval [s] */
957  	struct v4l2_fract	max;		/* Maximum frame interval [s] */
958  	struct v4l2_fract	step;		/* Frame interval step size [s] */
959  };
960  
961  struct v4l2_frmivalenum {
962  	__u32			index;		/* Frame format index */
963  	__u32			pixel_format;	/* Pixel format */
964  	__u32			width;		/* Frame width */
965  	__u32			height;		/* Frame height */
966  	__u32			type;		/* Frame interval type the device supports. */
967  
968  	union {					/* Frame interval */
969  		struct v4l2_fract		discrete;
970  		struct v4l2_frmival_stepwise	stepwise;
971  	};
972  
973  	__u32	reserved[2];			/* Reserved space for future use */
974  };
975  
976  /*
977   *	T I M E C O D E
978   */
979  struct v4l2_timecode {
980  	__u32	type;
981  	__u32	flags;
982  	__u8	frames;
983  	__u8	seconds;
984  	__u8	minutes;
985  	__u8	hours;
986  	__u8	userbits[4];
987  };
988  
989  /*  Type  */
990  #define V4L2_TC_TYPE_24FPS		1
991  #define V4L2_TC_TYPE_25FPS		2
992  #define V4L2_TC_TYPE_30FPS		3
993  #define V4L2_TC_TYPE_50FPS		4
994  #define V4L2_TC_TYPE_60FPS		5
995  
996  /*  Flags  */
997  #define V4L2_TC_FLAG_DROPFRAME		0x0001 /* "drop-frame" mode */
998  #define V4L2_TC_FLAG_COLORFRAME		0x0002
999  #define V4L2_TC_USERBITS_field		0x000C
1000  #define V4L2_TC_USERBITS_USERDEFINED	0x0000
1001  #define V4L2_TC_USERBITS_8BITCHARS	0x0008
1002  /* The above is based on SMPTE timecodes */
1003  
1004  struct v4l2_jpegcompression {
1005  	int quality;
1006  
1007  	int  APPn;              /* Number of APP segment to be written,
1008  				 * must be 0..15 */
1009  	int  APP_len;           /* Length of data in JPEG APPn segment */
1010  	char APP_data[60];      /* Data in the JPEG APPn segment. */
1011  
1012  	int  COM_len;           /* Length of data in JPEG COM segment */
1013  	char COM_data[60];      /* Data in JPEG COM segment */
1014  
1015  	__u32 jpeg_markers;     /* Which markers should go into the JPEG
1016  				 * output. Unless you exactly know what
1017  				 * you do, leave them untouched.
1018  				 * Including less markers will make the
1019  				 * resulting code smaller, but there will
1020  				 * be fewer applications which can read it.
1021  				 * The presence of the APP and COM marker
1022  				 * is influenced by APP_len and COM_len
1023  				 * ONLY, not by this property! */
1024  
1025  #define V4L2_JPEG_MARKER_DHT (1<<3)    /* Define Huffman Tables */
1026  #define V4L2_JPEG_MARKER_DQT (1<<4)    /* Define Quantization Tables */
1027  #define V4L2_JPEG_MARKER_DRI (1<<5)    /* Define Restart Interval */
1028  #define V4L2_JPEG_MARKER_COM (1<<6)    /* Comment segment */
1029  #define V4L2_JPEG_MARKER_APP (1<<7)    /* App segment, driver will
1030  					* always use APP0 */
1031  };
1032  
1033  /*
1034   *	M E M O R Y - M A P P I N G   B U F F E R S
1035   */
1036  
1037  #ifdef __KERNEL__
1038  /*
1039   * This corresponds to the user space version of timeval
1040   * for 64-bit time_t. sparc64 is different from everyone
1041   * else, using the microseconds in the wrong half of the
1042   * second 64-bit word.
1043   */
1044  struct __kernel_v4l2_timeval {
1045  	long long	tv_sec;
1046  #if defined(__sparc__) && defined(__arch64__)
1047  	int		tv_usec;
1048  	int		__pad;
1049  #else
1050  	long long	tv_usec;
1051  #endif
1052  };
1053  #endif
1054  
1055  struct v4l2_requestbuffers {
1056  	__u32			count;
1057  	__u32			type;		/* enum v4l2_buf_type */
1058  	__u32			memory;		/* enum v4l2_memory */
1059  	__u32			capabilities;
1060  	__u8			flags;
1061  	__u8			reserved[3];
1062  };
1063  
1064  #define V4L2_MEMORY_FLAG_NON_COHERENT			(1 << 0)
1065  
1066  /* capabilities for struct v4l2_requestbuffers and v4l2_create_buffers */
1067  #define V4L2_BUF_CAP_SUPPORTS_MMAP			(1 << 0)
1068  #define V4L2_BUF_CAP_SUPPORTS_USERPTR			(1 << 1)
1069  #define V4L2_BUF_CAP_SUPPORTS_DMABUF			(1 << 2)
1070  #define V4L2_BUF_CAP_SUPPORTS_REQUESTS			(1 << 3)
1071  #define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS		(1 << 4)
1072  #define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF	(1 << 5)
1073  #define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS		(1 << 6)
1074  #define V4L2_BUF_CAP_SUPPORTS_MAX_NUM_BUFFERS		(1 << 7)
1075  #define V4L2_BUF_CAP_SUPPORTS_REMOVE_BUFS		(1 << 8)
1076  
1077  /**
1078   * struct v4l2_plane - plane info for multi-planar buffers
1079   * @bytesused:		number of bytes occupied by data in the plane (payload)
1080   * @length:		size of this plane (NOT the payload) in bytes
1081   * @m.mem_offset:	when memory in the associated struct v4l2_buffer is
1082   *			V4L2_MEMORY_MMAP, equals the offset from the start of
1083   *			the device memory for this plane (or is a "cookie" that
1084   *			should be passed to mmap() called on the video node)
1085   * @m.userptr:		when memory is V4L2_MEMORY_USERPTR, a userspace pointer
1086   *			pointing to this plane
1087   * @m.fd:		when memory is V4L2_MEMORY_DMABUF, a userspace file
1088   *			descriptor associated with this plane
1089   * @m:			union of @mem_offset, @userptr and @fd
1090   * @data_offset:	offset in the plane to the start of data; usually 0,
1091   *			unless there is a header in front of the data
1092   * @reserved:		drivers and applications must zero this array
1093   *
1094   * Multi-planar buffers consist of one or more planes, e.g. an YCbCr buffer
1095   * with two planes can have one plane for Y, and another for interleaved CbCr
1096   * components. Each plane can reside in a separate memory buffer, or even in
1097   * a completely separate memory node (e.g. in embedded devices).
1098   */
1099  struct v4l2_plane {
1100  	__u32			bytesused;
1101  	__u32			length;
1102  	union {
1103  		__u32		mem_offset;
1104  		unsigned long	userptr;
1105  		__s32		fd;
1106  	} m;
1107  	__u32			data_offset;
1108  	__u32			reserved[11];
1109  };
1110  
1111  /**
1112   * struct v4l2_buffer - video buffer info
1113   * @index:	id number of the buffer
1114   * @type:	enum v4l2_buf_type; buffer type (type == *_MPLANE for
1115   *		multiplanar buffers);
1116   * @bytesused:	number of bytes occupied by data in the buffer (payload);
1117   *		unused (set to 0) for multiplanar buffers
1118   * @flags:	buffer informational flags
1119   * @field:	enum v4l2_field; field order of the image in the buffer
1120   * @timestamp:	frame timestamp
1121   * @timecode:	frame timecode
1122   * @sequence:	sequence count of this frame
1123   * @memory:	enum v4l2_memory; the method, in which the actual video data is
1124   *		passed
1125   * @m.offset:	for non-multiplanar buffers with memory == V4L2_MEMORY_MMAP;
1126   *		offset from the start of the device memory for this plane,
1127   *		(or a "cookie" that should be passed to mmap() as offset)
1128   * @m.userptr:	for non-multiplanar buffers with memory == V4L2_MEMORY_USERPTR;
1129   *		a userspace pointer pointing to this buffer
1130   * @m.fd:		for non-multiplanar buffers with memory == V4L2_MEMORY_DMABUF;
1131   *		a userspace file descriptor associated with this buffer
1132   * @m.planes:	for multiplanar buffers; userspace pointer to the array of plane
1133   *		info structs for this buffer
1134   * @m:		union of @offset, @userptr, @planes and @fd
1135   * @length:	size in bytes of the buffer (NOT its payload) for single-plane
1136   *		buffers (when type != *_MPLANE); number of elements in the
1137   *		planes array for multi-plane buffers
1138   * @reserved2:	drivers and applications must zero this field
1139   * @request_fd: fd of the request that this buffer should use
1140   * @reserved:	for backwards compatibility with applications that do not know
1141   *		about @request_fd
1142   *
1143   * Contains data exchanged by application and driver using one of the Streaming
1144   * I/O methods.
1145   */
1146  struct v4l2_buffer {
1147  	__u32			index;
1148  	__u32			type;
1149  	__u32			bytesused;
1150  	__u32			flags;
1151  	__u32			field;
1152  #ifdef __KERNEL__
1153  	struct __kernel_v4l2_timeval timestamp;
1154  #else
1155  	struct timeval		timestamp;
1156  #endif
1157  	struct v4l2_timecode	timecode;
1158  	__u32			sequence;
1159  
1160  	/* memory location */
1161  	__u32			memory;
1162  	union {
1163  		__u32           offset;
1164  		unsigned long   userptr;
1165  		struct v4l2_plane *planes;
1166  		__s32		fd;
1167  	} m;
1168  	__u32			length;
1169  	__u32			reserved2;
1170  	union {
1171  		__s32		request_fd;
1172  		__u32		reserved;
1173  	};
1174  };
1175  
1176  #ifndef __KERNEL__
1177  /**
1178   * v4l2_timeval_to_ns - Convert timeval to nanoseconds
1179   * @tv:		pointer to the timeval variable to be converted
1180   *
1181   * Returns the scalar nanosecond representation of the timeval
1182   * parameter.
1183   */
v4l2_timeval_to_ns(const struct timeval * tv)1184  static inline __u64 v4l2_timeval_to_ns(const struct timeval *tv)
1185  {
1186  	return (__u64)tv->tv_sec * 1000000000ULL + tv->tv_usec * 1000;
1187  }
1188  #endif
1189  
1190  /*  Flags for 'flags' field */
1191  /* Buffer is mapped (flag) */
1192  #define V4L2_BUF_FLAG_MAPPED			0x00000001
1193  /* Buffer is queued for processing */
1194  #define V4L2_BUF_FLAG_QUEUED			0x00000002
1195  /* Buffer is ready */
1196  #define V4L2_BUF_FLAG_DONE			0x00000004
1197  /* Image is a keyframe (I-frame) */
1198  #define V4L2_BUF_FLAG_KEYFRAME			0x00000008
1199  /* Image is a P-frame */
1200  #define V4L2_BUF_FLAG_PFRAME			0x00000010
1201  /* Image is a B-frame */
1202  #define V4L2_BUF_FLAG_BFRAME			0x00000020
1203  /* Buffer is ready, but the data contained within is corrupted. */
1204  #define V4L2_BUF_FLAG_ERROR			0x00000040
1205  /* Buffer is added to an unqueued request */
1206  #define V4L2_BUF_FLAG_IN_REQUEST		0x00000080
1207  /* timecode field is valid */
1208  #define V4L2_BUF_FLAG_TIMECODE			0x00000100
1209  /* Don't return the capture buffer until OUTPUT timestamp changes */
1210  #define V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF	0x00000200
1211  /* Buffer is prepared for queuing */
1212  #define V4L2_BUF_FLAG_PREPARED			0x00000400
1213  /* Cache handling flags */
1214  #define V4L2_BUF_FLAG_NO_CACHE_INVALIDATE	0x00000800
1215  #define V4L2_BUF_FLAG_NO_CACHE_CLEAN		0x00001000
1216  /* Timestamp type */
1217  #define V4L2_BUF_FLAG_TIMESTAMP_MASK		0x0000e000
1218  #define V4L2_BUF_FLAG_TIMESTAMP_UNKNOWN		0x00000000
1219  #define V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC	0x00002000
1220  #define V4L2_BUF_FLAG_TIMESTAMP_COPY		0x00004000
1221  /* Timestamp sources. */
1222  #define V4L2_BUF_FLAG_TSTAMP_SRC_MASK		0x00070000
1223  #define V4L2_BUF_FLAG_TSTAMP_SRC_EOF		0x00000000
1224  #define V4L2_BUF_FLAG_TSTAMP_SRC_SOE		0x00010000
1225  /* mem2mem encoder/decoder */
1226  #define V4L2_BUF_FLAG_LAST			0x00100000
1227  /* request_fd is valid */
1228  #define V4L2_BUF_FLAG_REQUEST_FD		0x00800000
1229  
1230  /**
1231   * struct v4l2_exportbuffer - export of video buffer as DMABUF file descriptor
1232   *
1233   * @index:	id number of the buffer
1234   * @type:	enum v4l2_buf_type; buffer type (type == *_MPLANE for
1235   *		multiplanar buffers);
1236   * @plane:	index of the plane to be exported, 0 for single plane queues
1237   * @flags:	flags for newly created file, currently only O_CLOEXEC is
1238   *		supported, refer to manual of open syscall for more details
1239   * @fd:		file descriptor associated with DMABUF (set by driver)
1240   * @reserved:	drivers and applications must zero this array
1241   *
1242   * Contains data used for exporting a video buffer as DMABUF file descriptor.
1243   * The buffer is identified by a 'cookie' returned by VIDIOC_QUERYBUF
1244   * (identical to the cookie used to mmap() the buffer to userspace). All
1245   * reserved fields must be set to zero. The field reserved0 is expected to
1246   * become a structure 'type' allowing an alternative layout of the structure
1247   * content. Therefore this field should not be used for any other extensions.
1248   */
1249  struct v4l2_exportbuffer {
1250  	__u32		type; /* enum v4l2_buf_type */
1251  	__u32		index;
1252  	__u32		plane;
1253  	__u32		flags;
1254  	__s32		fd;
1255  	__u32		reserved[11];
1256  };
1257  
1258  /*
1259   *	O V E R L A Y   P R E V I E W
1260   */
1261  struct v4l2_framebuffer {
1262  	__u32			capability;
1263  	__u32			flags;
1264  /* FIXME: in theory we should pass something like PCI device + memory
1265   * region + offset instead of some physical address */
1266  	void                    *base;
1267  	struct {
1268  		__u32		width;
1269  		__u32		height;
1270  		__u32		pixelformat;
1271  		__u32		field;		/* enum v4l2_field */
1272  		__u32		bytesperline;	/* for padding, zero if unused */
1273  		__u32		sizeimage;
1274  		__u32		colorspace;	/* enum v4l2_colorspace */
1275  		__u32		priv;		/* reserved field, set to 0 */
1276  	} fmt;
1277  };
1278  /*  Flags for the 'capability' field. Read only */
1279  #define V4L2_FBUF_CAP_EXTERNOVERLAY	0x0001
1280  #define V4L2_FBUF_CAP_CHROMAKEY		0x0002
1281  #ifndef __KERNEL__
1282  #define V4L2_FBUF_CAP_LIST_CLIPPING     0x0004
1283  #define V4L2_FBUF_CAP_BITMAP_CLIPPING	0x0008
1284  #endif
1285  #define V4L2_FBUF_CAP_LOCAL_ALPHA	0x0010
1286  #define V4L2_FBUF_CAP_GLOBAL_ALPHA	0x0020
1287  #define V4L2_FBUF_CAP_LOCAL_INV_ALPHA	0x0040
1288  #define V4L2_FBUF_CAP_SRC_CHROMAKEY	0x0080
1289  /*  Flags for the 'flags' field. */
1290  #define V4L2_FBUF_FLAG_PRIMARY		0x0001
1291  #define V4L2_FBUF_FLAG_OVERLAY		0x0002
1292  #define V4L2_FBUF_FLAG_CHROMAKEY	0x0004
1293  #define V4L2_FBUF_FLAG_LOCAL_ALPHA	0x0008
1294  #define V4L2_FBUF_FLAG_GLOBAL_ALPHA	0x0010
1295  #define V4L2_FBUF_FLAG_LOCAL_INV_ALPHA	0x0020
1296  #define V4L2_FBUF_FLAG_SRC_CHROMAKEY	0x0040
1297  
1298  struct v4l2_clip {
1299  	struct v4l2_rect        c;
1300  	struct v4l2_clip	__user *next;
1301  };
1302  
1303  struct v4l2_window {
1304  	struct v4l2_rect        w;
1305  	__u32			field;	 /* enum v4l2_field */
1306  	__u32			chromakey;
1307  	struct v4l2_clip	*clips;
1308  	__u32			clipcount;
1309  	void			__user *bitmap;
1310  	__u8                    global_alpha;
1311  };
1312  
1313  /*
1314   *	C A P T U R E   P A R A M E T E R S
1315   */
1316  struct v4l2_captureparm {
1317  	__u32		   capability;	  /*  Supported modes */
1318  	__u32		   capturemode;	  /*  Current mode */
1319  	struct v4l2_fract  timeperframe;  /*  Time per frame in seconds */
1320  	__u32		   extendedmode;  /*  Driver-specific extensions */
1321  	__u32              readbuffers;   /*  # of buffers for read */
1322  	__u32		   reserved[4];
1323  };
1324  
1325  /*  Flags for 'capability' and 'capturemode' fields */
1326  #define V4L2_MODE_HIGHQUALITY	0x0001	/*  High quality imaging mode */
1327  #define V4L2_CAP_TIMEPERFRAME	0x1000	/*  timeperframe field is supported */
1328  
1329  struct v4l2_outputparm {
1330  	__u32		   capability;	 /*  Supported modes */
1331  	__u32		   outputmode;	 /*  Current mode */
1332  	struct v4l2_fract  timeperframe; /*  Time per frame in seconds */
1333  	__u32		   extendedmode; /*  Driver-specific extensions */
1334  	__u32              writebuffers; /*  # of buffers for write */
1335  	__u32		   reserved[4];
1336  };
1337  
1338  /*
1339   *	I N P U T   I M A G E   C R O P P I N G
1340   */
1341  struct v4l2_cropcap {
1342  	__u32			type;	/* enum v4l2_buf_type */
1343  	struct v4l2_rect        bounds;
1344  	struct v4l2_rect        defrect;
1345  	struct v4l2_fract       pixelaspect;
1346  };
1347  
1348  struct v4l2_crop {
1349  	__u32			type;	/* enum v4l2_buf_type */
1350  	struct v4l2_rect        c;
1351  };
1352  
1353  /**
1354   * struct v4l2_selection - selection info
1355   * @type:	buffer type (do not use *_MPLANE types)
1356   * @target:	Selection target, used to choose one of possible rectangles;
1357   *		defined in v4l2-common.h; V4L2_SEL_TGT_* .
1358   * @flags:	constraints flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*.
1359   * @r:		coordinates of selection window
1360   * @reserved:	for future use, rounds structure size to 64 bytes, set to zero
1361   *
1362   * Hardware may use multiple helper windows to process a video stream.
1363   * The structure is used to exchange this selection areas between
1364   * an application and a driver.
1365   */
1366  struct v4l2_selection {
1367  	__u32			type;
1368  	__u32			target;
1369  	__u32                   flags;
1370  	struct v4l2_rect        r;
1371  	__u32                   reserved[9];
1372  };
1373  
1374  
1375  /*
1376   *      A N A L O G   V I D E O   S T A N D A R D
1377   */
1378  
1379  typedef __u64 v4l2_std_id;
1380  
1381  /*
1382   * Attention: Keep the V4L2_STD_* bit definitions in sync with
1383   * include/dt-bindings/display/sdtv-standards.h SDTV_STD_* bit definitions.
1384   */
1385  /* one bit for each */
1386  #define V4L2_STD_PAL_B          ((v4l2_std_id)0x00000001)
1387  #define V4L2_STD_PAL_B1         ((v4l2_std_id)0x00000002)
1388  #define V4L2_STD_PAL_G          ((v4l2_std_id)0x00000004)
1389  #define V4L2_STD_PAL_H          ((v4l2_std_id)0x00000008)
1390  #define V4L2_STD_PAL_I          ((v4l2_std_id)0x00000010)
1391  #define V4L2_STD_PAL_D          ((v4l2_std_id)0x00000020)
1392  #define V4L2_STD_PAL_D1         ((v4l2_std_id)0x00000040)
1393  #define V4L2_STD_PAL_K          ((v4l2_std_id)0x00000080)
1394  
1395  #define V4L2_STD_PAL_M          ((v4l2_std_id)0x00000100)
1396  #define V4L2_STD_PAL_N          ((v4l2_std_id)0x00000200)
1397  #define V4L2_STD_PAL_Nc         ((v4l2_std_id)0x00000400)
1398  #define V4L2_STD_PAL_60         ((v4l2_std_id)0x00000800)
1399  
1400  #define V4L2_STD_NTSC_M         ((v4l2_std_id)0x00001000)	/* BTSC */
1401  #define V4L2_STD_NTSC_M_JP      ((v4l2_std_id)0x00002000)	/* EIA-J */
1402  #define V4L2_STD_NTSC_443       ((v4l2_std_id)0x00004000)
1403  #define V4L2_STD_NTSC_M_KR      ((v4l2_std_id)0x00008000)	/* FM A2 */
1404  
1405  #define V4L2_STD_SECAM_B        ((v4l2_std_id)0x00010000)
1406  #define V4L2_STD_SECAM_D        ((v4l2_std_id)0x00020000)
1407  #define V4L2_STD_SECAM_G        ((v4l2_std_id)0x00040000)
1408  #define V4L2_STD_SECAM_H        ((v4l2_std_id)0x00080000)
1409  #define V4L2_STD_SECAM_K        ((v4l2_std_id)0x00100000)
1410  #define V4L2_STD_SECAM_K1       ((v4l2_std_id)0x00200000)
1411  #define V4L2_STD_SECAM_L        ((v4l2_std_id)0x00400000)
1412  #define V4L2_STD_SECAM_LC       ((v4l2_std_id)0x00800000)
1413  
1414  /* ATSC/HDTV */
1415  #define V4L2_STD_ATSC_8_VSB     ((v4l2_std_id)0x01000000)
1416  #define V4L2_STD_ATSC_16_VSB    ((v4l2_std_id)0x02000000)
1417  
1418  /* FIXME:
1419     Although std_id is 64 bits, there is an issue on PPC32 architecture that
1420     makes switch(__u64) to break. So, there's a hack on v4l2-common.c rounding
1421     this value to 32 bits.
1422     As, currently, the max value is for V4L2_STD_ATSC_16_VSB (30 bits wide),
1423     it should work fine. However, if needed to add more than two standards,
1424     v4l2-common.c should be fixed.
1425   */
1426  
1427  /*
1428   * Some macros to merge video standards in order to make live easier for the
1429   * drivers and V4L2 applications
1430   */
1431  
1432  /*
1433   * "Common" NTSC/M - It should be noticed that V4L2_STD_NTSC_443 is
1434   * Missing here.
1435   */
1436  #define V4L2_STD_NTSC           (V4L2_STD_NTSC_M	|\
1437  				 V4L2_STD_NTSC_M_JP     |\
1438  				 V4L2_STD_NTSC_M_KR)
1439  /* Secam macros */
1440  #define V4L2_STD_SECAM_DK	(V4L2_STD_SECAM_D	|\
1441  				 V4L2_STD_SECAM_K	|\
1442  				 V4L2_STD_SECAM_K1)
1443  /* All Secam Standards */
1444  #define V4L2_STD_SECAM		(V4L2_STD_SECAM_B	|\
1445  				 V4L2_STD_SECAM_G	|\
1446  				 V4L2_STD_SECAM_H	|\
1447  				 V4L2_STD_SECAM_DK	|\
1448  				 V4L2_STD_SECAM_L       |\
1449  				 V4L2_STD_SECAM_LC)
1450  /* PAL macros */
1451  #define V4L2_STD_PAL_BG		(V4L2_STD_PAL_B		|\
1452  				 V4L2_STD_PAL_B1	|\
1453  				 V4L2_STD_PAL_G)
1454  #define V4L2_STD_PAL_DK		(V4L2_STD_PAL_D		|\
1455  				 V4L2_STD_PAL_D1	|\
1456  				 V4L2_STD_PAL_K)
1457  /*
1458   * "Common" PAL - This macro is there to be compatible with the old
1459   * V4L1 concept of "PAL": /BGDKHI.
1460   * Several PAL standards are missing here: /M, /N and /Nc
1461   */
1462  #define V4L2_STD_PAL		(V4L2_STD_PAL_BG	|\
1463  				 V4L2_STD_PAL_DK	|\
1464  				 V4L2_STD_PAL_H		|\
1465  				 V4L2_STD_PAL_I)
1466  /* Chroma "agnostic" standards */
1467  #define V4L2_STD_B		(V4L2_STD_PAL_B		|\
1468  				 V4L2_STD_PAL_B1	|\
1469  				 V4L2_STD_SECAM_B)
1470  #define V4L2_STD_G		(V4L2_STD_PAL_G		|\
1471  				 V4L2_STD_SECAM_G)
1472  #define V4L2_STD_H		(V4L2_STD_PAL_H		|\
1473  				 V4L2_STD_SECAM_H)
1474  #define V4L2_STD_L		(V4L2_STD_SECAM_L	|\
1475  				 V4L2_STD_SECAM_LC)
1476  #define V4L2_STD_GH		(V4L2_STD_G		|\
1477  				 V4L2_STD_H)
1478  #define V4L2_STD_DK		(V4L2_STD_PAL_DK	|\
1479  				 V4L2_STD_SECAM_DK)
1480  #define V4L2_STD_BG		(V4L2_STD_B		|\
1481  				 V4L2_STD_G)
1482  #define V4L2_STD_MN		(V4L2_STD_PAL_M		|\
1483  				 V4L2_STD_PAL_N		|\
1484  				 V4L2_STD_PAL_Nc	|\
1485  				 V4L2_STD_NTSC)
1486  
1487  /* Standards where MTS/BTSC stereo could be found */
1488  #define V4L2_STD_MTS		(V4L2_STD_NTSC_M	|\
1489  				 V4L2_STD_PAL_M		|\
1490  				 V4L2_STD_PAL_N		|\
1491  				 V4L2_STD_PAL_Nc)
1492  
1493  /* Standards for Countries with 60Hz Line frequency */
1494  #define V4L2_STD_525_60		(V4L2_STD_PAL_M		|\
1495  				 V4L2_STD_PAL_60	|\
1496  				 V4L2_STD_NTSC		|\
1497  				 V4L2_STD_NTSC_443)
1498  /* Standards for Countries with 50Hz Line frequency */
1499  #define V4L2_STD_625_50		(V4L2_STD_PAL		|\
1500  				 V4L2_STD_PAL_N		|\
1501  				 V4L2_STD_PAL_Nc	|\
1502  				 V4L2_STD_SECAM)
1503  
1504  #define V4L2_STD_ATSC           (V4L2_STD_ATSC_8_VSB    |\
1505  				 V4L2_STD_ATSC_16_VSB)
1506  /* Macros with none and all analog standards */
1507  #define V4L2_STD_UNKNOWN        0
1508  #define V4L2_STD_ALL            (V4L2_STD_525_60	|\
1509  				 V4L2_STD_625_50)
1510  
1511  struct v4l2_standard {
1512  	__u32		     index;
1513  	v4l2_std_id          id;
1514  	__u8		     name[24];
1515  	struct v4l2_fract    frameperiod; /* Frames, not fields */
1516  	__u32		     framelines;
1517  	__u32		     reserved[4];
1518  };
1519  
1520  /*
1521   *	D V	B T	T I M I N G S
1522   */
1523  
1524  /** struct v4l2_bt_timings - BT.656/BT.1120 timing data
1525   * @width:	total width of the active video in pixels
1526   * @height:	total height of the active video in lines
1527   * @interlaced:	Interlaced or progressive
1528   * @polarities:	Positive or negative polarities
1529   * @pixelclock:	Pixel clock in HZ. Ex. 74.25MHz->74250000
1530   * @hfrontporch:Horizontal front porch in pixels
1531   * @hsync:	Horizontal Sync length in pixels
1532   * @hbackporch:	Horizontal back porch in pixels
1533   * @vfrontporch:Vertical front porch in lines
1534   * @vsync:	Vertical Sync length in lines
1535   * @vbackporch:	Vertical back porch in lines
1536   * @il_vfrontporch:Vertical front porch for the even field
1537   *		(aka field 2) of interlaced field formats
1538   * @il_vsync:	Vertical Sync length for the even field
1539   *		(aka field 2) of interlaced field formats
1540   * @il_vbackporch:Vertical back porch for the even field
1541   *		(aka field 2) of interlaced field formats
1542   * @standards:	Standards the timing belongs to
1543   * @flags:	Flags
1544   * @picture_aspect: The picture aspect ratio (hor/vert).
1545   * @cea861_vic:	VIC code as per the CEA-861 standard.
1546   * @hdmi_vic:	VIC code as per the HDMI standard.
1547   * @reserved:	Reserved fields, must be zeroed.
1548   *
1549   * A note regarding vertical interlaced timings: height refers to the total
1550   * height of the active video frame (= two fields). The blanking timings refer
1551   * to the blanking of each field. So the height of the total frame is
1552   * calculated as follows:
1553   *
1554   * tot_height = height + vfrontporch + vsync + vbackporch +
1555   *                       il_vfrontporch + il_vsync + il_vbackporch
1556   *
1557   * The active height of each field is height / 2.
1558   */
1559  struct v4l2_bt_timings {
1560  	__u32	width;
1561  	__u32	height;
1562  	__u32	interlaced;
1563  	__u32	polarities;
1564  	__u64	pixelclock;
1565  	__u32	hfrontporch;
1566  	__u32	hsync;
1567  	__u32	hbackporch;
1568  	__u32	vfrontporch;
1569  	__u32	vsync;
1570  	__u32	vbackporch;
1571  	__u32	il_vfrontporch;
1572  	__u32	il_vsync;
1573  	__u32	il_vbackporch;
1574  	__u32	standards;
1575  	__u32	flags;
1576  	struct v4l2_fract picture_aspect;
1577  	__u8	cea861_vic;
1578  	__u8	hdmi_vic;
1579  	__u8	reserved[46];
1580  } __attribute__ ((packed));
1581  
1582  /* Interlaced or progressive format */
1583  #define	V4L2_DV_PROGRESSIVE	0
1584  #define	V4L2_DV_INTERLACED	1
1585  
1586  /* Polarities. If bit is not set, it is assumed to be negative polarity */
1587  #define V4L2_DV_VSYNC_POS_POL	0x00000001
1588  #define V4L2_DV_HSYNC_POS_POL	0x00000002
1589  
1590  /* Timings standards */
1591  #define V4L2_DV_BT_STD_CEA861	(1 << 0)  /* CEA-861 Digital TV Profile */
1592  #define V4L2_DV_BT_STD_DMT	(1 << 1)  /* VESA Discrete Monitor Timings */
1593  #define V4L2_DV_BT_STD_CVT	(1 << 2)  /* VESA Coordinated Video Timings */
1594  #define V4L2_DV_BT_STD_GTF	(1 << 3)  /* VESA Generalized Timings Formula */
1595  #define V4L2_DV_BT_STD_SDI	(1 << 4)  /* SDI Timings */
1596  
1597  /* Flags */
1598  
1599  /*
1600   * CVT/GTF specific: timing uses reduced blanking (CVT) or the 'Secondary
1601   * GTF' curve (GTF). In both cases the horizontal and/or vertical blanking
1602   * intervals are reduced, allowing a higher resolution over the same
1603   * bandwidth. This is a read-only flag.
1604   */
1605  #define V4L2_DV_FL_REDUCED_BLANKING		(1 << 0)
1606  /*
1607   * CEA-861 specific: set for CEA-861 formats with a framerate of a multiple
1608   * of six. These formats can be optionally played at 1 / 1.001 speed.
1609   * This is a read-only flag.
1610   */
1611  #define V4L2_DV_FL_CAN_REDUCE_FPS		(1 << 1)
1612  /*
1613   * CEA-861 specific: only valid for video transmitters, the flag is cleared
1614   * by receivers.
1615   * If the framerate of the format is a multiple of six, then the pixelclock
1616   * used to set up the transmitter is divided by 1.001 to make it compatible
1617   * with 60 Hz based standards such as NTSC and PAL-M that use a framerate of
1618   * 29.97 Hz. Otherwise this flag is cleared. If the transmitter can't generate
1619   * such frequencies, then the flag will also be cleared.
1620   */
1621  #define V4L2_DV_FL_REDUCED_FPS			(1 << 2)
1622  /*
1623   * Specific to interlaced formats: if set, then field 1 is really one half-line
1624   * longer and field 2 is really one half-line shorter, so each field has
1625   * exactly the same number of half-lines. Whether half-lines can be detected
1626   * or used depends on the hardware.
1627   */
1628  #define V4L2_DV_FL_HALF_LINE			(1 << 3)
1629  /*
1630   * If set, then this is a Consumer Electronics (CE) video format. Such formats
1631   * differ from other formats (commonly called IT formats) in that if RGB
1632   * encoding is used then by default the RGB values use limited range (i.e.
1633   * use the range 16-235) as opposed to 0-255. All formats defined in CEA-861
1634   * except for the 640x480 format are CE formats.
1635   */
1636  #define V4L2_DV_FL_IS_CE_VIDEO			(1 << 4)
1637  /* Some formats like SMPTE-125M have an interlaced signal with a odd
1638   * total height. For these formats, if this flag is set, the first
1639   * field has the extra line. If not, it is the second field.
1640   */
1641  #define V4L2_DV_FL_FIRST_FIELD_EXTRA_LINE	(1 << 5)
1642  /*
1643   * If set, then the picture_aspect field is valid. Otherwise assume that the
1644   * pixels are square, so the picture aspect ratio is the same as the width to
1645   * height ratio.
1646   */
1647  #define V4L2_DV_FL_HAS_PICTURE_ASPECT		(1 << 6)
1648  /*
1649   * If set, then the cea861_vic field is valid and contains the Video
1650   * Identification Code as per the CEA-861 standard.
1651   */
1652  #define V4L2_DV_FL_HAS_CEA861_VIC		(1 << 7)
1653  /*
1654   * If set, then the hdmi_vic field is valid and contains the Video
1655   * Identification Code as per the HDMI standard (HDMI Vendor Specific
1656   * InfoFrame).
1657   */
1658  #define V4L2_DV_FL_HAS_HDMI_VIC			(1 << 8)
1659  /*
1660   * CEA-861 specific: only valid for video receivers.
1661   * If set, then HW can detect the difference between regular FPS and
1662   * 1000/1001 FPS. Note: This flag is only valid for HDMI VIC codes with
1663   * the V4L2_DV_FL_CAN_REDUCE_FPS flag set.
1664   */
1665  #define V4L2_DV_FL_CAN_DETECT_REDUCED_FPS	(1 << 9)
1666  
1667  /* A few useful defines to calculate the total blanking and frame sizes */
1668  #define V4L2_DV_BT_BLANKING_WIDTH(bt) \
1669  	((bt)->hfrontporch + (bt)->hsync + (bt)->hbackporch)
1670  #define V4L2_DV_BT_FRAME_WIDTH(bt) \
1671  	((bt)->width + V4L2_DV_BT_BLANKING_WIDTH(bt))
1672  #define V4L2_DV_BT_BLANKING_HEIGHT(bt) \
1673  	((bt)->vfrontporch + (bt)->vsync + (bt)->vbackporch + \
1674  	 ((bt)->interlaced ? \
1675  	  ((bt)->il_vfrontporch + (bt)->il_vsync + (bt)->il_vbackporch) : 0))
1676  #define V4L2_DV_BT_FRAME_HEIGHT(bt) \
1677  	((bt)->height + V4L2_DV_BT_BLANKING_HEIGHT(bt))
1678  
1679  /** struct v4l2_dv_timings - DV timings
1680   * @type:	the type of the timings
1681   * @bt:	BT656/1120 timings
1682   */
1683  struct v4l2_dv_timings {
1684  	__u32 type;
1685  	union {
1686  		struct v4l2_bt_timings	bt;
1687  		__u32	reserved[32];
1688  	};
1689  } __attribute__ ((packed));
1690  
1691  /* Values for the type field */
1692  #define V4L2_DV_BT_656_1120	0	/* BT.656/1120 timing type */
1693  
1694  
1695  /** struct v4l2_enum_dv_timings - DV timings enumeration
1696   * @index:	enumeration index
1697   * @pad:	the pad number for which to enumerate timings (used with
1698   *		v4l-subdev nodes only)
1699   * @reserved:	must be zeroed
1700   * @timings:	the timings for the given index
1701   */
1702  struct v4l2_enum_dv_timings {
1703  	__u32 index;
1704  	__u32 pad;
1705  	__u32 reserved[2];
1706  	struct v4l2_dv_timings timings;
1707  };
1708  
1709  /** struct v4l2_bt_timings_cap - BT.656/BT.1120 timing capabilities
1710   * @min_width:		width in pixels
1711   * @max_width:		width in pixels
1712   * @min_height:		height in lines
1713   * @max_height:		height in lines
1714   * @min_pixelclock:	Pixel clock in HZ. Ex. 74.25MHz->74250000
1715   * @max_pixelclock:	Pixel clock in HZ. Ex. 74.25MHz->74250000
1716   * @standards:		Supported standards
1717   * @capabilities:	Supported capabilities
1718   * @reserved:		Must be zeroed
1719   */
1720  struct v4l2_bt_timings_cap {
1721  	__u32	min_width;
1722  	__u32	max_width;
1723  	__u32	min_height;
1724  	__u32	max_height;
1725  	__u64	min_pixelclock;
1726  	__u64	max_pixelclock;
1727  	__u32	standards;
1728  	__u32	capabilities;
1729  	__u32	reserved[16];
1730  } __attribute__ ((packed));
1731  
1732  /* Supports interlaced formats */
1733  #define V4L2_DV_BT_CAP_INTERLACED	(1 << 0)
1734  /* Supports progressive formats */
1735  #define V4L2_DV_BT_CAP_PROGRESSIVE	(1 << 1)
1736  /* Supports CVT/GTF reduced blanking */
1737  #define V4L2_DV_BT_CAP_REDUCED_BLANKING	(1 << 2)
1738  /* Supports custom formats */
1739  #define V4L2_DV_BT_CAP_CUSTOM		(1 << 3)
1740  
1741  /** struct v4l2_dv_timings_cap - DV timings capabilities
1742   * @type:	the type of the timings (same as in struct v4l2_dv_timings)
1743   * @pad:	the pad number for which to query capabilities (used with
1744   *		v4l-subdev nodes only)
1745   * @bt:		the BT656/1120 timings capabilities
1746   */
1747  struct v4l2_dv_timings_cap {
1748  	__u32 type;
1749  	__u32 pad;
1750  	__u32 reserved[2];
1751  	union {
1752  		struct v4l2_bt_timings_cap bt;
1753  		__u32 raw_data[32];
1754  	};
1755  };
1756  
1757  
1758  /*
1759   *	V I D E O   I N P U T S
1760   */
1761  struct v4l2_input {
1762  	__u32	     index;		/*  Which input */
1763  	__u8	     name[32];		/*  Label */
1764  	__u32	     type;		/*  Type of input */
1765  	__u32	     audioset;		/*  Associated audios (bitfield) */
1766  	__u32        tuner;             /*  Tuner index */
1767  	v4l2_std_id  std;
1768  	__u32	     status;
1769  	__u32	     capabilities;
1770  	__u32	     reserved[3];
1771  };
1772  
1773  /*  Values for the 'type' field */
1774  #define V4L2_INPUT_TYPE_TUNER		1
1775  #define V4L2_INPUT_TYPE_CAMERA		2
1776  #define V4L2_INPUT_TYPE_TOUCH		3
1777  
1778  /* field 'status' - general */
1779  #define V4L2_IN_ST_NO_POWER    0x00000001  /* Attached device is off */
1780  #define V4L2_IN_ST_NO_SIGNAL   0x00000002
1781  #define V4L2_IN_ST_NO_COLOR    0x00000004
1782  
1783  /* field 'status' - sensor orientation */
1784  /* If sensor is mounted upside down set both bits */
1785  #define V4L2_IN_ST_HFLIP       0x00000010 /* Frames are flipped horizontally */
1786  #define V4L2_IN_ST_VFLIP       0x00000020 /* Frames are flipped vertically */
1787  
1788  /* field 'status' - analog */
1789  #define V4L2_IN_ST_NO_H_LOCK   0x00000100  /* No horizontal sync lock */
1790  #define V4L2_IN_ST_COLOR_KILL  0x00000200  /* Color killer is active */
1791  #define V4L2_IN_ST_NO_V_LOCK   0x00000400  /* No vertical sync lock */
1792  #define V4L2_IN_ST_NO_STD_LOCK 0x00000800  /* No standard format lock */
1793  
1794  /* field 'status' - digital */
1795  #define V4L2_IN_ST_NO_SYNC     0x00010000  /* No synchronization lock */
1796  #define V4L2_IN_ST_NO_EQU      0x00020000  /* No equalizer lock */
1797  #define V4L2_IN_ST_NO_CARRIER  0x00040000  /* Carrier recovery failed */
1798  
1799  /* field 'status' - VCR and set-top box */
1800  #define V4L2_IN_ST_MACROVISION 0x01000000  /* Macrovision detected */
1801  #define V4L2_IN_ST_NO_ACCESS   0x02000000  /* Conditional access denied */
1802  #define V4L2_IN_ST_VTR         0x04000000  /* VTR time constant */
1803  
1804  /* capabilities flags */
1805  #define V4L2_IN_CAP_DV_TIMINGS		0x00000002 /* Supports S_DV_TIMINGS */
1806  #define V4L2_IN_CAP_CUSTOM_TIMINGS	V4L2_IN_CAP_DV_TIMINGS /* For compatibility */
1807  #define V4L2_IN_CAP_STD			0x00000004 /* Supports S_STD */
1808  #define V4L2_IN_CAP_NATIVE_SIZE		0x00000008 /* Supports setting native size */
1809  
1810  /*
1811   *	V I D E O   O U T P U T S
1812   */
1813  struct v4l2_output {
1814  	__u32	     index;		/*  Which output */
1815  	__u8	     name[32];		/*  Label */
1816  	__u32	     type;		/*  Type of output */
1817  	__u32	     audioset;		/*  Associated audios (bitfield) */
1818  	__u32	     modulator;         /*  Associated modulator */
1819  	v4l2_std_id  std;
1820  	__u32	     capabilities;
1821  	__u32	     reserved[3];
1822  };
1823  /*  Values for the 'type' field */
1824  #define V4L2_OUTPUT_TYPE_MODULATOR		1
1825  #define V4L2_OUTPUT_TYPE_ANALOG			2
1826  #define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY	3
1827  
1828  /* capabilities flags */
1829  #define V4L2_OUT_CAP_DV_TIMINGS		0x00000002 /* Supports S_DV_TIMINGS */
1830  #define V4L2_OUT_CAP_CUSTOM_TIMINGS	V4L2_OUT_CAP_DV_TIMINGS /* For compatibility */
1831  #define V4L2_OUT_CAP_STD		0x00000004 /* Supports S_STD */
1832  #define V4L2_OUT_CAP_NATIVE_SIZE	0x00000008 /* Supports setting native size */
1833  
1834  /*
1835   *	C O N T R O L S
1836   */
1837  struct v4l2_control {
1838  	__u32		     id;
1839  	__s32		     value;
1840  };
1841  
1842  struct v4l2_ext_control {
1843  	__u32 id;
1844  	__u32 size;
1845  	__u32 reserved2[1];
1846  	union {
1847  		__s32 value;
1848  		__s64 value64;
1849  		char __user *string;
1850  		__u8 __user *p_u8;
1851  		__u16 __user *p_u16;
1852  		__u32 __user *p_u32;
1853  		__s32 __user *p_s32;
1854  		__s64 __user *p_s64;
1855  		struct v4l2_area __user *p_area;
1856  		struct v4l2_ctrl_h264_sps __user *p_h264_sps;
1857  		struct v4l2_ctrl_h264_pps __user *p_h264_pps;
1858  		struct v4l2_ctrl_h264_scaling_matrix __user *p_h264_scaling_matrix;
1859  		struct v4l2_ctrl_h264_pred_weights __user *p_h264_pred_weights;
1860  		struct v4l2_ctrl_h264_slice_params __user *p_h264_slice_params;
1861  		struct v4l2_ctrl_h264_decode_params __user *p_h264_decode_params;
1862  		struct v4l2_ctrl_fwht_params __user *p_fwht_params;
1863  		struct v4l2_ctrl_vp8_frame __user *p_vp8_frame;
1864  		struct v4l2_ctrl_mpeg2_sequence __user *p_mpeg2_sequence;
1865  		struct v4l2_ctrl_mpeg2_picture __user *p_mpeg2_picture;
1866  		struct v4l2_ctrl_mpeg2_quantisation __user *p_mpeg2_quantisation;
1867  		struct v4l2_ctrl_vp9_compressed_hdr __user *p_vp9_compressed_hdr_probs;
1868  		struct v4l2_ctrl_vp9_frame __user *p_vp9_frame;
1869  		struct v4l2_ctrl_hevc_sps __user *p_hevc_sps;
1870  		struct v4l2_ctrl_hevc_pps __user *p_hevc_pps;
1871  		struct v4l2_ctrl_hevc_slice_params __user *p_hevc_slice_params;
1872  		struct v4l2_ctrl_hevc_scaling_matrix __user *p_hevc_scaling_matrix;
1873  		struct v4l2_ctrl_hevc_decode_params __user *p_hevc_decode_params;
1874  		struct v4l2_ctrl_av1_sequence __user *p_av1_sequence;
1875  		struct v4l2_ctrl_av1_tile_group_entry __user *p_av1_tile_group_entry;
1876  		struct v4l2_ctrl_av1_frame __user *p_av1_frame;
1877  		struct v4l2_ctrl_av1_film_grain __user *p_av1_film_grain;
1878  		struct v4l2_ctrl_hdr10_cll_info __user *p_hdr10_cll_info;
1879  		struct v4l2_ctrl_hdr10_mastering_display __user *p_hdr10_mastering_display;
1880  		void __user *ptr;
1881  	} __attribute__ ((packed));
1882  } __attribute__ ((packed));
1883  
1884  struct v4l2_ext_controls {
1885  	union {
1886  #ifndef __KERNEL__
1887  		__u32 ctrl_class;
1888  #endif
1889  		__u32 which;
1890  	};
1891  	__u32 count;
1892  	__u32 error_idx;
1893  	__s32 request_fd;
1894  	__u32 reserved[1];
1895  	struct v4l2_ext_control *controls;
1896  };
1897  
1898  #define V4L2_CTRL_ID_MASK	  (0x0fffffff)
1899  #ifndef __KERNEL__
1900  #define V4L2_CTRL_ID2CLASS(id)    ((id) & 0x0fff0000UL)
1901  #endif
1902  #define V4L2_CTRL_ID2WHICH(id)    ((id) & 0x0fff0000UL)
1903  #define V4L2_CTRL_DRIVER_PRIV(id) (((id) & 0xffff) >= 0x1000)
1904  #define V4L2_CTRL_MAX_DIMS	  (4)
1905  #define V4L2_CTRL_WHICH_CUR_VAL   0
1906  #define V4L2_CTRL_WHICH_DEF_VAL   0x0f000000
1907  #define V4L2_CTRL_WHICH_REQUEST_VAL 0x0f010000
1908  
1909  enum v4l2_ctrl_type {
1910  	V4L2_CTRL_TYPE_INTEGER	     = 1,
1911  	V4L2_CTRL_TYPE_BOOLEAN	     = 2,
1912  	V4L2_CTRL_TYPE_MENU	     = 3,
1913  	V4L2_CTRL_TYPE_BUTTON	     = 4,
1914  	V4L2_CTRL_TYPE_INTEGER64     = 5,
1915  	V4L2_CTRL_TYPE_CTRL_CLASS    = 6,
1916  	V4L2_CTRL_TYPE_STRING        = 7,
1917  	V4L2_CTRL_TYPE_BITMASK       = 8,
1918  	V4L2_CTRL_TYPE_INTEGER_MENU  = 9,
1919  
1920  	/* Compound types are >= 0x0100 */
1921  	V4L2_CTRL_COMPOUND_TYPES     = 0x0100,
1922  	V4L2_CTRL_TYPE_U8	     = 0x0100,
1923  	V4L2_CTRL_TYPE_U16	     = 0x0101,
1924  	V4L2_CTRL_TYPE_U32	     = 0x0102,
1925  	V4L2_CTRL_TYPE_AREA          = 0x0106,
1926  
1927  	V4L2_CTRL_TYPE_HDR10_CLL_INFO		= 0x0110,
1928  	V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY	= 0x0111,
1929  
1930  	V4L2_CTRL_TYPE_H264_SPS             = 0x0200,
1931  	V4L2_CTRL_TYPE_H264_PPS		    = 0x0201,
1932  	V4L2_CTRL_TYPE_H264_SCALING_MATRIX  = 0x0202,
1933  	V4L2_CTRL_TYPE_H264_SLICE_PARAMS    = 0x0203,
1934  	V4L2_CTRL_TYPE_H264_DECODE_PARAMS   = 0x0204,
1935  	V4L2_CTRL_TYPE_H264_PRED_WEIGHTS    = 0x0205,
1936  
1937  	V4L2_CTRL_TYPE_FWHT_PARAMS	    = 0x0220,
1938  
1939  	V4L2_CTRL_TYPE_VP8_FRAME            = 0x0240,
1940  
1941  	V4L2_CTRL_TYPE_MPEG2_QUANTISATION   = 0x0250,
1942  	V4L2_CTRL_TYPE_MPEG2_SEQUENCE       = 0x0251,
1943  	V4L2_CTRL_TYPE_MPEG2_PICTURE        = 0x0252,
1944  
1945  	V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR	= 0x0260,
1946  	V4L2_CTRL_TYPE_VP9_FRAME		= 0x0261,
1947  
1948  	V4L2_CTRL_TYPE_HEVC_SPS			= 0x0270,
1949  	V4L2_CTRL_TYPE_HEVC_PPS			= 0x0271,
1950  	V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS	= 0x0272,
1951  	V4L2_CTRL_TYPE_HEVC_SCALING_MATRIX	= 0x0273,
1952  	V4L2_CTRL_TYPE_HEVC_DECODE_PARAMS	= 0x0274,
1953  
1954  	V4L2_CTRL_TYPE_AV1_SEQUENCE	    = 0x280,
1955  	V4L2_CTRL_TYPE_AV1_TILE_GROUP_ENTRY = 0x281,
1956  	V4L2_CTRL_TYPE_AV1_FRAME	    = 0x282,
1957  	V4L2_CTRL_TYPE_AV1_FILM_GRAIN	    = 0x283,
1958  };
1959  
1960  /*  Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
1961  struct v4l2_queryctrl {
1962  	__u32		     id;
1963  	__u32		     type;	/* enum v4l2_ctrl_type */
1964  	__u8		     name[32];	/* Whatever */
1965  	__s32		     minimum;	/* Note signedness */
1966  	__s32		     maximum;
1967  	__s32		     step;
1968  	__s32		     default_value;
1969  	__u32                flags;
1970  	__u32		     reserved[2];
1971  };
1972  
1973  /*  Used in the VIDIOC_QUERY_EXT_CTRL ioctl for querying extended controls */
1974  struct v4l2_query_ext_ctrl {
1975  	__u32		     id;
1976  	__u32		     type;
1977  	char		     name[32];
1978  	__s64		     minimum;
1979  	__s64		     maximum;
1980  	__u64		     step;
1981  	__s64		     default_value;
1982  	__u32                flags;
1983  	__u32                elem_size;
1984  	__u32                elems;
1985  	__u32                nr_of_dims;
1986  	__u32                dims[V4L2_CTRL_MAX_DIMS];
1987  	__u32		     reserved[32];
1988  };
1989  
1990  /*  Used in the VIDIOC_QUERYMENU ioctl for querying menu items */
1991  struct v4l2_querymenu {
1992  	__u32		id;
1993  	__u32		index;
1994  	union {
1995  		__u8	name[32];	/* Whatever */
1996  		__s64	value;
1997  	};
1998  	__u32		reserved;
1999  } __attribute__ ((packed));
2000  
2001  /*  Control flags  */
2002  #define V4L2_CTRL_FLAG_DISABLED		0x0001
2003  #define V4L2_CTRL_FLAG_GRABBED		0x0002
2004  #define V4L2_CTRL_FLAG_READ_ONLY	0x0004
2005  #define V4L2_CTRL_FLAG_UPDATE		0x0008
2006  #define V4L2_CTRL_FLAG_INACTIVE		0x0010
2007  #define V4L2_CTRL_FLAG_SLIDER		0x0020
2008  #define V4L2_CTRL_FLAG_WRITE_ONLY	0x0040
2009  #define V4L2_CTRL_FLAG_VOLATILE		0x0080
2010  #define V4L2_CTRL_FLAG_HAS_PAYLOAD	0x0100
2011  #define V4L2_CTRL_FLAG_EXECUTE_ON_WRITE	0x0200
2012  #define V4L2_CTRL_FLAG_MODIFY_LAYOUT	0x0400
2013  #define V4L2_CTRL_FLAG_DYNAMIC_ARRAY	0x0800
2014  
2015  /*  Query flags, to be ORed with the control ID */
2016  #define V4L2_CTRL_FLAG_NEXT_CTRL	0x80000000
2017  #define V4L2_CTRL_FLAG_NEXT_COMPOUND	0x40000000
2018  
2019  /*  User-class control IDs defined by V4L2 */
2020  #define V4L2_CID_MAX_CTRLS		1024
2021  /*  IDs reserved for driver specific controls */
2022  #define V4L2_CID_PRIVATE_BASE		0x08000000
2023  
2024  
2025  /*
2026   *	T U N I N G
2027   */
2028  struct v4l2_tuner {
2029  	__u32                   index;
2030  	__u8			name[32];
2031  	__u32			type;	/* enum v4l2_tuner_type */
2032  	__u32			capability;
2033  	__u32			rangelow;
2034  	__u32			rangehigh;
2035  	__u32			rxsubchans;
2036  	__u32			audmode;
2037  	__s32			signal;
2038  	__s32			afc;
2039  	__u32			reserved[4];
2040  };
2041  
2042  struct v4l2_modulator {
2043  	__u32			index;
2044  	__u8			name[32];
2045  	__u32			capability;
2046  	__u32			rangelow;
2047  	__u32			rangehigh;
2048  	__u32			txsubchans;
2049  	__u32			type;	/* enum v4l2_tuner_type */
2050  	__u32			reserved[3];
2051  };
2052  
2053  /*  Flags for the 'capability' field */
2054  #define V4L2_TUNER_CAP_LOW		0x0001
2055  #define V4L2_TUNER_CAP_NORM		0x0002
2056  #define V4L2_TUNER_CAP_HWSEEK_BOUNDED	0x0004
2057  #define V4L2_TUNER_CAP_HWSEEK_WRAP	0x0008
2058  #define V4L2_TUNER_CAP_STEREO		0x0010
2059  #define V4L2_TUNER_CAP_LANG2		0x0020
2060  #define V4L2_TUNER_CAP_SAP		0x0020
2061  #define V4L2_TUNER_CAP_LANG1		0x0040
2062  #define V4L2_TUNER_CAP_RDS		0x0080
2063  #define V4L2_TUNER_CAP_RDS_BLOCK_IO	0x0100
2064  #define V4L2_TUNER_CAP_RDS_CONTROLS	0x0200
2065  #define V4L2_TUNER_CAP_FREQ_BANDS	0x0400
2066  #define V4L2_TUNER_CAP_HWSEEK_PROG_LIM	0x0800
2067  #define V4L2_TUNER_CAP_1HZ		0x1000
2068  
2069  /*  Flags for the 'rxsubchans' field */
2070  #define V4L2_TUNER_SUB_MONO		0x0001
2071  #define V4L2_TUNER_SUB_STEREO		0x0002
2072  #define V4L2_TUNER_SUB_LANG2		0x0004
2073  #define V4L2_TUNER_SUB_SAP		0x0004
2074  #define V4L2_TUNER_SUB_LANG1		0x0008
2075  #define V4L2_TUNER_SUB_RDS		0x0010
2076  
2077  /*  Values for the 'audmode' field */
2078  #define V4L2_TUNER_MODE_MONO		0x0000
2079  #define V4L2_TUNER_MODE_STEREO		0x0001
2080  #define V4L2_TUNER_MODE_LANG2		0x0002
2081  #define V4L2_TUNER_MODE_SAP		0x0002
2082  #define V4L2_TUNER_MODE_LANG1		0x0003
2083  #define V4L2_TUNER_MODE_LANG1_LANG2	0x0004
2084  
2085  struct v4l2_frequency {
2086  	__u32	tuner;
2087  	__u32	type;	/* enum v4l2_tuner_type */
2088  	__u32	frequency;
2089  	__u32	reserved[8];
2090  };
2091  
2092  #define V4L2_BAND_MODULATION_VSB	(1 << 1)
2093  #define V4L2_BAND_MODULATION_FM		(1 << 2)
2094  #define V4L2_BAND_MODULATION_AM		(1 << 3)
2095  
2096  struct v4l2_frequency_band {
2097  	__u32	tuner;
2098  	__u32	type;	/* enum v4l2_tuner_type */
2099  	__u32	index;
2100  	__u32	capability;
2101  	__u32	rangelow;
2102  	__u32	rangehigh;
2103  	__u32	modulation;
2104  	__u32	reserved[9];
2105  };
2106  
2107  struct v4l2_hw_freq_seek {
2108  	__u32	tuner;
2109  	__u32	type;	/* enum v4l2_tuner_type */
2110  	__u32	seek_upward;
2111  	__u32	wrap_around;
2112  	__u32	spacing;
2113  	__u32	rangelow;
2114  	__u32	rangehigh;
2115  	__u32	reserved[5];
2116  };
2117  
2118  /*
2119   *	R D S
2120   */
2121  
2122  struct v4l2_rds_data {
2123  	__u8	lsb;
2124  	__u8	msb;
2125  	__u8	block;
2126  } __attribute__ ((packed));
2127  
2128  #define V4L2_RDS_BLOCK_MSK	 0x7
2129  #define V4L2_RDS_BLOCK_A	 0
2130  #define V4L2_RDS_BLOCK_B	 1
2131  #define V4L2_RDS_BLOCK_C	 2
2132  #define V4L2_RDS_BLOCK_D	 3
2133  #define V4L2_RDS_BLOCK_C_ALT	 4
2134  #define V4L2_RDS_BLOCK_INVALID	 7
2135  
2136  #define V4L2_RDS_BLOCK_CORRECTED 0x40
2137  #define V4L2_RDS_BLOCK_ERROR	 0x80
2138  
2139  /*
2140   *	A U D I O
2141   */
2142  struct v4l2_audio {
2143  	__u32	index;
2144  	__u8	name[32];
2145  	__u32	capability;
2146  	__u32	mode;
2147  	__u32	reserved[2];
2148  };
2149  
2150  /*  Flags for the 'capability' field */
2151  #define V4L2_AUDCAP_STEREO		0x00001
2152  #define V4L2_AUDCAP_AVL			0x00002
2153  
2154  /*  Flags for the 'mode' field */
2155  #define V4L2_AUDMODE_AVL		0x00001
2156  
2157  struct v4l2_audioout {
2158  	__u32	index;
2159  	__u8	name[32];
2160  	__u32	capability;
2161  	__u32	mode;
2162  	__u32	reserved[2];
2163  };
2164  
2165  /*
2166   *	M P E G   S E R V I C E S
2167   */
2168  #if 1
2169  #define V4L2_ENC_IDX_FRAME_I    (0)
2170  #define V4L2_ENC_IDX_FRAME_P    (1)
2171  #define V4L2_ENC_IDX_FRAME_B    (2)
2172  #define V4L2_ENC_IDX_FRAME_MASK (0xf)
2173  
2174  struct v4l2_enc_idx_entry {
2175  	__u64 offset;
2176  	__u64 pts;
2177  	__u32 length;
2178  	__u32 flags;
2179  	__u32 reserved[2];
2180  };
2181  
2182  #define V4L2_ENC_IDX_ENTRIES (64)
2183  struct v4l2_enc_idx {
2184  	__u32 entries;
2185  	__u32 entries_cap;
2186  	__u32 reserved[4];
2187  	struct v4l2_enc_idx_entry entry[V4L2_ENC_IDX_ENTRIES];
2188  };
2189  
2190  
2191  #define V4L2_ENC_CMD_START      (0)
2192  #define V4L2_ENC_CMD_STOP       (1)
2193  #define V4L2_ENC_CMD_PAUSE      (2)
2194  #define V4L2_ENC_CMD_RESUME     (3)
2195  
2196  /* Flags for V4L2_ENC_CMD_STOP */
2197  #define V4L2_ENC_CMD_STOP_AT_GOP_END    (1 << 0)
2198  
2199  struct v4l2_encoder_cmd {
2200  	__u32 cmd;
2201  	__u32 flags;
2202  	union {
2203  		struct {
2204  			__u32 data[8];
2205  		} raw;
2206  	};
2207  };
2208  
2209  /* Decoder commands */
2210  #define V4L2_DEC_CMD_START       (0)
2211  #define V4L2_DEC_CMD_STOP        (1)
2212  #define V4L2_DEC_CMD_PAUSE       (2)
2213  #define V4L2_DEC_CMD_RESUME      (3)
2214  #define V4L2_DEC_CMD_FLUSH       (4)
2215  
2216  /* Flags for V4L2_DEC_CMD_START */
2217  #define V4L2_DEC_CMD_START_MUTE_AUDIO	(1 << 0)
2218  
2219  /* Flags for V4L2_DEC_CMD_PAUSE */
2220  #define V4L2_DEC_CMD_PAUSE_TO_BLACK	(1 << 0)
2221  
2222  /* Flags for V4L2_DEC_CMD_STOP */
2223  #define V4L2_DEC_CMD_STOP_TO_BLACK	(1 << 0)
2224  #define V4L2_DEC_CMD_STOP_IMMEDIATELY	(1 << 1)
2225  
2226  /* Play format requirements (returned by the driver): */
2227  
2228  /* The decoder has no special format requirements */
2229  #define V4L2_DEC_START_FMT_NONE		(0)
2230  /* The decoder requires full GOPs */
2231  #define V4L2_DEC_START_FMT_GOP		(1)
2232  
2233  /* The structure must be zeroed before use by the application
2234     This ensures it can be extended safely in the future. */
2235  struct v4l2_decoder_cmd {
2236  	__u32 cmd;
2237  	__u32 flags;
2238  	union {
2239  		struct {
2240  			__u64 pts;
2241  		} stop;
2242  
2243  		struct {
2244  			/* 0 or 1000 specifies normal speed,
2245  			   1 specifies forward single stepping,
2246  			   -1 specifies backward single stepping,
2247  			   >1: playback at speed/1000 of the normal speed,
2248  			   <-1: reverse playback at (-speed/1000) of the normal speed. */
2249  			__s32 speed;
2250  			__u32 format;
2251  		} start;
2252  
2253  		struct {
2254  			__u32 data[16];
2255  		} raw;
2256  	};
2257  };
2258  #endif
2259  
2260  
2261  /*
2262   *	D A T A   S E R V I C E S   ( V B I )
2263   *
2264   *	Data services API by Michael Schimek
2265   */
2266  
2267  /* Raw VBI */
2268  struct v4l2_vbi_format {
2269  	__u32	sampling_rate;		/* in 1 Hz */
2270  	__u32	offset;
2271  	__u32	samples_per_line;
2272  	__u32	sample_format;		/* V4L2_PIX_FMT_* */
2273  	__s32	start[2];
2274  	__u32	count[2];
2275  	__u32	flags;			/* V4L2_VBI_* */
2276  	__u32	reserved[2];		/* must be zero */
2277  };
2278  
2279  /*  VBI flags  */
2280  #define V4L2_VBI_UNSYNC		(1 << 0)
2281  #define V4L2_VBI_INTERLACED	(1 << 1)
2282  
2283  /* ITU-R start lines for each field */
2284  #define V4L2_VBI_ITU_525_F1_START (1)
2285  #define V4L2_VBI_ITU_525_F2_START (264)
2286  #define V4L2_VBI_ITU_625_F1_START (1)
2287  #define V4L2_VBI_ITU_625_F2_START (314)
2288  
2289  /* Sliced VBI
2290   *
2291   *    This implements is a proposal V4L2 API to allow SLICED VBI
2292   * required for some hardware encoders. It should change without
2293   * notice in the definitive implementation.
2294   */
2295  
2296  struct v4l2_sliced_vbi_format {
2297  	__u16   service_set;
2298  	/* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
2299  	   service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
2300  				 (equals frame lines 313-336 for 625 line video
2301  				  standards, 263-286 for 525 line standards) */
2302  	__u16   service_lines[2][24];
2303  	__u32   io_size;
2304  	__u32   reserved[2];            /* must be zero */
2305  };
2306  
2307  /* Teletext World System Teletext
2308     (WST), defined on ITU-R BT.653-2 */
2309  #define V4L2_SLICED_TELETEXT_B          (0x0001)
2310  /* Video Program System, defined on ETS 300 231*/
2311  #define V4L2_SLICED_VPS                 (0x0400)
2312  /* Closed Caption, defined on EIA-608 */
2313  #define V4L2_SLICED_CAPTION_525         (0x1000)
2314  /* Wide Screen System, defined on ITU-R BT1119.1 */
2315  #define V4L2_SLICED_WSS_625             (0x4000)
2316  
2317  #define V4L2_SLICED_VBI_525             (V4L2_SLICED_CAPTION_525)
2318  #define V4L2_SLICED_VBI_625             (V4L2_SLICED_TELETEXT_B | V4L2_SLICED_VPS | V4L2_SLICED_WSS_625)
2319  
2320  struct v4l2_sliced_vbi_cap {
2321  	__u16   service_set;
2322  	/* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
2323  	   service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
2324  				 (equals frame lines 313-336 for 625 line video
2325  				  standards, 263-286 for 525 line standards) */
2326  	__u16   service_lines[2][24];
2327  	__u32	type;		/* enum v4l2_buf_type */
2328  	__u32   reserved[3];    /* must be 0 */
2329  };
2330  
2331  struct v4l2_sliced_vbi_data {
2332  	__u32   id;
2333  	__u32   field;          /* 0: first field, 1: second field */
2334  	__u32   line;           /* 1-23 */
2335  	__u32   reserved;       /* must be 0 */
2336  	__u8    data[48];
2337  };
2338  
2339  /*
2340   * Sliced VBI data inserted into MPEG Streams
2341   */
2342  
2343  /*
2344   * V4L2_MPEG_STREAM_VBI_FMT_IVTV:
2345   *
2346   * Structure of payload contained in an MPEG 2 Private Stream 1 PES Packet in an
2347   * MPEG-2 Program Pack that contains V4L2_MPEG_STREAM_VBI_FMT_IVTV Sliced VBI
2348   * data
2349   *
2350   * Note, the MPEG-2 Program Pack and Private Stream 1 PES packet header
2351   * definitions are not included here.  See the MPEG-2 specifications for details
2352   * on these headers.
2353   */
2354  
2355  /* Line type IDs */
2356  #define V4L2_MPEG_VBI_IVTV_TELETEXT_B     (1)
2357  #define V4L2_MPEG_VBI_IVTV_CAPTION_525    (4)
2358  #define V4L2_MPEG_VBI_IVTV_WSS_625        (5)
2359  #define V4L2_MPEG_VBI_IVTV_VPS            (7)
2360  
2361  struct v4l2_mpeg_vbi_itv0_line {
2362  	__u8 id;	/* One of V4L2_MPEG_VBI_IVTV_* above */
2363  	__u8 data[42];	/* Sliced VBI data for the line */
2364  } __attribute__ ((packed));
2365  
2366  struct v4l2_mpeg_vbi_itv0 {
2367  	__le32 linemask[2]; /* Bitmasks of VBI service lines present */
2368  	struct v4l2_mpeg_vbi_itv0_line line[35];
2369  } __attribute__ ((packed));
2370  
2371  struct v4l2_mpeg_vbi_ITV0 {
2372  	struct v4l2_mpeg_vbi_itv0_line line[36];
2373  } __attribute__ ((packed));
2374  
2375  #define V4L2_MPEG_VBI_IVTV_MAGIC0	"itv0"
2376  #define V4L2_MPEG_VBI_IVTV_MAGIC1	"ITV0"
2377  
2378  struct v4l2_mpeg_vbi_fmt_ivtv {
2379  	__u8 magic[4];
2380  	union {
2381  		struct v4l2_mpeg_vbi_itv0 itv0;
2382  		struct v4l2_mpeg_vbi_ITV0 ITV0;
2383  	};
2384  } __attribute__ ((packed));
2385  
2386  /*
2387   *	A G G R E G A T E   S T R U C T U R E S
2388   */
2389  
2390  /**
2391   * struct v4l2_plane_pix_format - additional, per-plane format definition
2392   * @sizeimage:		maximum size in bytes required for data, for which
2393   *			this plane will be used
2394   * @bytesperline:	distance in bytes between the leftmost pixels in two
2395   *			adjacent lines
2396   * @reserved:		drivers and applications must zero this array
2397   */
2398  struct v4l2_plane_pix_format {
2399  	__u32		sizeimage;
2400  	__u32		bytesperline;
2401  	__u16		reserved[6];
2402  } __attribute__ ((packed));
2403  
2404  /**
2405   * struct v4l2_pix_format_mplane - multiplanar format definition
2406   * @width:		image width in pixels
2407   * @height:		image height in pixels
2408   * @pixelformat:	little endian four character code (fourcc)
2409   * @field:		enum v4l2_field; field order (for interlaced video)
2410   * @colorspace:		enum v4l2_colorspace; supplemental to pixelformat
2411   * @plane_fmt:		per-plane information
2412   * @num_planes:		number of planes for this format
2413   * @flags:		format flags (V4L2_PIX_FMT_FLAG_*)
2414   * @ycbcr_enc:		enum v4l2_ycbcr_encoding, Y'CbCr encoding
2415   * @hsv_enc:		enum v4l2_hsv_encoding, HSV encoding
2416   * @quantization:	enum v4l2_quantization, colorspace quantization
2417   * @xfer_func:		enum v4l2_xfer_func, colorspace transfer function
2418   * @reserved:		drivers and applications must zero this array
2419   */
2420  struct v4l2_pix_format_mplane {
2421  	__u32				width;
2422  	__u32				height;
2423  	__u32				pixelformat;
2424  	__u32				field;
2425  	__u32				colorspace;
2426  
2427  	struct v4l2_plane_pix_format	plane_fmt[VIDEO_MAX_PLANES];
2428  	__u8				num_planes;
2429  	__u8				flags;
2430  	 union {
2431  		__u8				ycbcr_enc;
2432  		__u8				hsv_enc;
2433  	};
2434  	__u8				quantization;
2435  	__u8				xfer_func;
2436  	__u8				reserved[7];
2437  } __attribute__ ((packed));
2438  
2439  /**
2440   * struct v4l2_sdr_format - SDR format definition
2441   * @pixelformat:	little endian four character code (fourcc)
2442   * @buffersize:		maximum size in bytes required for data
2443   * @reserved:		drivers and applications must zero this array
2444   */
2445  struct v4l2_sdr_format {
2446  	__u32				pixelformat;
2447  	__u32				buffersize;
2448  	__u8				reserved[24];
2449  } __attribute__ ((packed));
2450  
2451  /**
2452   * struct v4l2_meta_format - metadata format definition
2453   * @dataformat:		little endian four character code (fourcc)
2454   * @buffersize:		maximum size in bytes required for data
2455   * @width:		number of data units of data per line (valid for line
2456   *			based formats only, see format documentation)
2457   * @height:		number of lines of data per buffer (valid for line based
2458   *			formats only)
2459   * @bytesperline:	offset between the beginnings of two adjacent lines in
2460   *			bytes (valid for line based formats only)
2461   */
2462  struct v4l2_meta_format {
2463  	__u32				dataformat;
2464  	__u32				buffersize;
2465  	__u32				width;
2466  	__u32				height;
2467  	__u32				bytesperline;
2468  } __attribute__ ((packed));
2469  
2470  /**
2471   * struct v4l2_format - stream data format
2472   * @type:		enum v4l2_buf_type; type of the data stream
2473   * @fmt.pix:		definition of an image format
2474   * @fmt.pix_mp:		definition of a multiplanar image format
2475   * @fmt.win:		definition of an overlaid image
2476   * @fmt.vbi:		raw VBI capture or output parameters
2477   * @fmt.sliced:		sliced VBI capture or output parameters
2478   * @fmt.raw_data:	placeholder for future extensions and custom formats
2479   * @fmt:		union of @pix, @pix_mp, @win, @vbi, @sliced, @sdr,
2480   *			@meta and @raw_data
2481   */
2482  struct v4l2_format {
2483  	__u32	 type;
2484  	union {
2485  		struct v4l2_pix_format		pix;     /* V4L2_BUF_TYPE_VIDEO_CAPTURE */
2486  		struct v4l2_pix_format_mplane	pix_mp;  /* V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE */
2487  		struct v4l2_window		win;     /* V4L2_BUF_TYPE_VIDEO_OVERLAY */
2488  		struct v4l2_vbi_format		vbi;     /* V4L2_BUF_TYPE_VBI_CAPTURE */
2489  		struct v4l2_sliced_vbi_format	sliced;  /* V4L2_BUF_TYPE_SLICED_VBI_CAPTURE */
2490  		struct v4l2_sdr_format		sdr;     /* V4L2_BUF_TYPE_SDR_CAPTURE */
2491  		struct v4l2_meta_format		meta;    /* V4L2_BUF_TYPE_META_CAPTURE */
2492  		__u8	raw_data[200];                   /* user-defined */
2493  	} fmt;
2494  };
2495  
2496  /*	Stream type-dependent parameters
2497   */
2498  struct v4l2_streamparm {
2499  	__u32	 type;			/* enum v4l2_buf_type */
2500  	union {
2501  		struct v4l2_captureparm	capture;
2502  		struct v4l2_outputparm	output;
2503  		__u8	raw_data[200];  /* user-defined */
2504  	} parm;
2505  };
2506  
2507  /*
2508   *	E V E N T S
2509   */
2510  
2511  #define V4L2_EVENT_ALL				0
2512  #define V4L2_EVENT_VSYNC			1
2513  #define V4L2_EVENT_EOS				2
2514  #define V4L2_EVENT_CTRL				3
2515  #define V4L2_EVENT_FRAME_SYNC			4
2516  #define V4L2_EVENT_SOURCE_CHANGE		5
2517  #define V4L2_EVENT_MOTION_DET			6
2518  #define V4L2_EVENT_PRIVATE_START		0x08000000
2519  
2520  /* Payload for V4L2_EVENT_VSYNC */
2521  struct v4l2_event_vsync {
2522  	/* Can be V4L2_FIELD_ANY, _NONE, _TOP or _BOTTOM */
2523  	__u8 field;
2524  } __attribute__ ((packed));
2525  
2526  /* Payload for V4L2_EVENT_CTRL */
2527  #define V4L2_EVENT_CTRL_CH_VALUE		(1 << 0)
2528  #define V4L2_EVENT_CTRL_CH_FLAGS		(1 << 1)
2529  #define V4L2_EVENT_CTRL_CH_RANGE		(1 << 2)
2530  #define V4L2_EVENT_CTRL_CH_DIMENSIONS		(1 << 3)
2531  
2532  struct v4l2_event_ctrl {
2533  	__u32 changes;
2534  	__u32 type;
2535  	union {
2536  		__s32 value;
2537  		__s64 value64;
2538  	};
2539  	__u32 flags;
2540  	__s32 minimum;
2541  	__s32 maximum;
2542  	__s32 step;
2543  	__s32 default_value;
2544  };
2545  
2546  struct v4l2_event_frame_sync {
2547  	__u32 frame_sequence;
2548  };
2549  
2550  #define V4L2_EVENT_SRC_CH_RESOLUTION		(1 << 0)
2551  
2552  struct v4l2_event_src_change {
2553  	__u32 changes;
2554  };
2555  
2556  #define V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ	(1 << 0)
2557  
2558  /**
2559   * struct v4l2_event_motion_det - motion detection event
2560   * @flags:             if V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ is set, then the
2561   *                     frame_sequence field is valid.
2562   * @frame_sequence:    the frame sequence number associated with this event.
2563   * @region_mask:       which regions detected motion.
2564   */
2565  struct v4l2_event_motion_det {
2566  	__u32 flags;
2567  	__u32 frame_sequence;
2568  	__u32 region_mask;
2569  };
2570  
2571  struct v4l2_event {
2572  	__u32				type;
2573  	union {
2574  		struct v4l2_event_vsync		vsync;
2575  		struct v4l2_event_ctrl		ctrl;
2576  		struct v4l2_event_frame_sync	frame_sync;
2577  		struct v4l2_event_src_change	src_change;
2578  		struct v4l2_event_motion_det	motion_det;
2579  		__u8				data[64];
2580  	} u;
2581  	__u32				pending;
2582  	__u32				sequence;
2583  #ifdef __KERNEL__
2584  	struct __kernel_timespec	timestamp;
2585  #else
2586  	struct timespec			timestamp;
2587  #endif
2588  	__u32				id;
2589  	__u32				reserved[8];
2590  };
2591  
2592  #define V4L2_EVENT_SUB_FL_SEND_INITIAL		(1 << 0)
2593  #define V4L2_EVENT_SUB_FL_ALLOW_FEEDBACK	(1 << 1)
2594  
2595  struct v4l2_event_subscription {
2596  	__u32				type;
2597  	__u32				id;
2598  	__u32				flags;
2599  	__u32				reserved[5];
2600  };
2601  
2602  /*
2603   *	A D V A N C E D   D E B U G G I N G
2604   *
2605   *	NOTE: EXPERIMENTAL API, NEVER RELY ON THIS IN APPLICATIONS!
2606   *	FOR DEBUGGING, TESTING AND INTERNAL USE ONLY!
2607   */
2608  
2609  /* VIDIOC_DBG_G_REGISTER and VIDIOC_DBG_S_REGISTER */
2610  
2611  #define V4L2_CHIP_MATCH_BRIDGE      0  /* Match against chip ID on the bridge (0 for the bridge) */
2612  #define V4L2_CHIP_MATCH_SUBDEV      4  /* Match against subdev index */
2613  
2614  /* The following four defines are no longer in use */
2615  #define V4L2_CHIP_MATCH_HOST V4L2_CHIP_MATCH_BRIDGE
2616  #define V4L2_CHIP_MATCH_I2C_DRIVER  1  /* Match against I2C driver name */
2617  #define V4L2_CHIP_MATCH_I2C_ADDR    2  /* Match against I2C 7-bit address */
2618  #define V4L2_CHIP_MATCH_AC97        3  /* Match against ancillary AC97 chip */
2619  
2620  struct v4l2_dbg_match {
2621  	__u32 type; /* Match type */
2622  	union {     /* Match this chip, meaning determined by type */
2623  		__u32 addr;
2624  		char name[32];
2625  	};
2626  } __attribute__ ((packed));
2627  
2628  struct v4l2_dbg_register {
2629  	struct v4l2_dbg_match match;
2630  	__u32 size;	/* register size in bytes */
2631  	__u64 reg;
2632  	__u64 val;
2633  } __attribute__ ((packed));
2634  
2635  #define V4L2_CHIP_FL_READABLE (1 << 0)
2636  #define V4L2_CHIP_FL_WRITABLE (1 << 1)
2637  
2638  /* VIDIOC_DBG_G_CHIP_INFO */
2639  struct v4l2_dbg_chip_info {
2640  	struct v4l2_dbg_match match;
2641  	char name[32];
2642  	__u32 flags;
2643  	__u32 reserved[32];
2644  } __attribute__ ((packed));
2645  
2646  /**
2647   * struct v4l2_create_buffers - VIDIOC_CREATE_BUFS argument
2648   * @index:	on return, index of the first created buffer
2649   * @count:	entry: number of requested buffers,
2650   *		return: number of created buffers
2651   * @memory:	enum v4l2_memory; buffer memory type
2652   * @format:	frame format, for which buffers are requested
2653   * @capabilities: capabilities of this buffer type.
2654   * @flags:	additional buffer management attributes (ignored unless the
2655   *		queue has V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS capability
2656   *		and configured for MMAP streaming I/O).
2657   * @max_num_buffers: if V4L2_BUF_CAP_SUPPORTS_MAX_NUM_BUFFERS capability flag is set
2658   *		this field indicate the maximum possible number of buffers
2659   *		for this queue.
2660   * @reserved:	future extensions
2661   */
2662  struct v4l2_create_buffers {
2663  	__u32			index;
2664  	__u32			count;
2665  	__u32			memory;
2666  	struct v4l2_format	format;
2667  	__u32			capabilities;
2668  	__u32			flags;
2669  	__u32			max_num_buffers;
2670  	__u32			reserved[5];
2671  };
2672  
2673  /**
2674   * struct v4l2_remove_buffers - VIDIOC_REMOVE_BUFS argument
2675   * @index:	the first buffer to be removed
2676   * @count:	number of buffers to removed
2677   * @type:	enum v4l2_buf_type
2678   * @reserved:	future extensions
2679   */
2680  struct v4l2_remove_buffers {
2681  	__u32			index;
2682  	__u32			count;
2683  	__u32			type;
2684  	__u32			reserved[13];
2685  };
2686  
2687  /*
2688   *	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
2689   *
2690   */
2691  #define VIDIOC_QUERYCAP		 _IOR('V',  0, struct v4l2_capability)
2692  #define VIDIOC_ENUM_FMT         _IOWR('V',  2, struct v4l2_fmtdesc)
2693  #define VIDIOC_G_FMT		_IOWR('V',  4, struct v4l2_format)
2694  #define VIDIOC_S_FMT		_IOWR('V',  5, struct v4l2_format)
2695  #define VIDIOC_REQBUFS		_IOWR('V',  8, struct v4l2_requestbuffers)
2696  #define VIDIOC_QUERYBUF		_IOWR('V',  9, struct v4l2_buffer)
2697  #define VIDIOC_G_FBUF		 _IOR('V', 10, struct v4l2_framebuffer)
2698  #define VIDIOC_S_FBUF		 _IOW('V', 11, struct v4l2_framebuffer)
2699  #define VIDIOC_OVERLAY		 _IOW('V', 14, int)
2700  #define VIDIOC_QBUF		_IOWR('V', 15, struct v4l2_buffer)
2701  #define VIDIOC_EXPBUF		_IOWR('V', 16, struct v4l2_exportbuffer)
2702  #define VIDIOC_DQBUF		_IOWR('V', 17, struct v4l2_buffer)
2703  #define VIDIOC_STREAMON		 _IOW('V', 18, int)
2704  #define VIDIOC_STREAMOFF	 _IOW('V', 19, int)
2705  #define VIDIOC_G_PARM		_IOWR('V', 21, struct v4l2_streamparm)
2706  #define VIDIOC_S_PARM		_IOWR('V', 22, struct v4l2_streamparm)
2707  #define VIDIOC_G_STD		 _IOR('V', 23, v4l2_std_id)
2708  #define VIDIOC_S_STD		 _IOW('V', 24, v4l2_std_id)
2709  #define VIDIOC_ENUMSTD		_IOWR('V', 25, struct v4l2_standard)
2710  #define VIDIOC_ENUMINPUT	_IOWR('V', 26, struct v4l2_input)
2711  #define VIDIOC_G_CTRL		_IOWR('V', 27, struct v4l2_control)
2712  #define VIDIOC_S_CTRL		_IOWR('V', 28, struct v4l2_control)
2713  #define VIDIOC_G_TUNER		_IOWR('V', 29, struct v4l2_tuner)
2714  #define VIDIOC_S_TUNER		 _IOW('V', 30, struct v4l2_tuner)
2715  #define VIDIOC_G_AUDIO		 _IOR('V', 33, struct v4l2_audio)
2716  #define VIDIOC_S_AUDIO		 _IOW('V', 34, struct v4l2_audio)
2717  #define VIDIOC_QUERYCTRL	_IOWR('V', 36, struct v4l2_queryctrl)
2718  #define VIDIOC_QUERYMENU	_IOWR('V', 37, struct v4l2_querymenu)
2719  #define VIDIOC_G_INPUT		 _IOR('V', 38, int)
2720  #define VIDIOC_S_INPUT		_IOWR('V', 39, int)
2721  #define VIDIOC_G_EDID		_IOWR('V', 40, struct v4l2_edid)
2722  #define VIDIOC_S_EDID		_IOWR('V', 41, struct v4l2_edid)
2723  #define VIDIOC_G_OUTPUT		 _IOR('V', 46, int)
2724  #define VIDIOC_S_OUTPUT		_IOWR('V', 47, int)
2725  #define VIDIOC_ENUMOUTPUT	_IOWR('V', 48, struct v4l2_output)
2726  #define VIDIOC_G_AUDOUT		 _IOR('V', 49, struct v4l2_audioout)
2727  #define VIDIOC_S_AUDOUT		 _IOW('V', 50, struct v4l2_audioout)
2728  #define VIDIOC_G_MODULATOR	_IOWR('V', 54, struct v4l2_modulator)
2729  #define VIDIOC_S_MODULATOR	 _IOW('V', 55, struct v4l2_modulator)
2730  #define VIDIOC_G_FREQUENCY	_IOWR('V', 56, struct v4l2_frequency)
2731  #define VIDIOC_S_FREQUENCY	 _IOW('V', 57, struct v4l2_frequency)
2732  #define VIDIOC_CROPCAP		_IOWR('V', 58, struct v4l2_cropcap)
2733  #define VIDIOC_G_CROP		_IOWR('V', 59, struct v4l2_crop)
2734  #define VIDIOC_S_CROP		 _IOW('V', 60, struct v4l2_crop)
2735  #define VIDIOC_G_JPEGCOMP	 _IOR('V', 61, struct v4l2_jpegcompression)
2736  #define VIDIOC_S_JPEGCOMP	 _IOW('V', 62, struct v4l2_jpegcompression)
2737  #define VIDIOC_QUERYSTD		 _IOR('V', 63, v4l2_std_id)
2738  #define VIDIOC_TRY_FMT		_IOWR('V', 64, struct v4l2_format)
2739  #define VIDIOC_ENUMAUDIO	_IOWR('V', 65, struct v4l2_audio)
2740  #define VIDIOC_ENUMAUDOUT	_IOWR('V', 66, struct v4l2_audioout)
2741  #define VIDIOC_G_PRIORITY	 _IOR('V', 67, __u32) /* enum v4l2_priority */
2742  #define VIDIOC_S_PRIORITY	 _IOW('V', 68, __u32) /* enum v4l2_priority */
2743  #define VIDIOC_G_SLICED_VBI_CAP _IOWR('V', 69, struct v4l2_sliced_vbi_cap)
2744  #define VIDIOC_LOG_STATUS         _IO('V', 70)
2745  #define VIDIOC_G_EXT_CTRLS	_IOWR('V', 71, struct v4l2_ext_controls)
2746  #define VIDIOC_S_EXT_CTRLS	_IOWR('V', 72, struct v4l2_ext_controls)
2747  #define VIDIOC_TRY_EXT_CTRLS	_IOWR('V', 73, struct v4l2_ext_controls)
2748  #define VIDIOC_ENUM_FRAMESIZES	_IOWR('V', 74, struct v4l2_frmsizeenum)
2749  #define VIDIOC_ENUM_FRAMEINTERVALS _IOWR('V', 75, struct v4l2_frmivalenum)
2750  #define VIDIOC_G_ENC_INDEX       _IOR('V', 76, struct v4l2_enc_idx)
2751  #define VIDIOC_ENCODER_CMD      _IOWR('V', 77, struct v4l2_encoder_cmd)
2752  #define VIDIOC_TRY_ENCODER_CMD  _IOWR('V', 78, struct v4l2_encoder_cmd)
2753  
2754  /*
2755   * Experimental, meant for debugging, testing and internal use.
2756   * Only implemented if CONFIG_VIDEO_ADV_DEBUG is defined.
2757   * You must be root to use these ioctls. Never use these in applications!
2758   */
2759  #define	VIDIOC_DBG_S_REGISTER	 _IOW('V', 79, struct v4l2_dbg_register)
2760  #define	VIDIOC_DBG_G_REGISTER	_IOWR('V', 80, struct v4l2_dbg_register)
2761  
2762  #define VIDIOC_S_HW_FREQ_SEEK	 _IOW('V', 82, struct v4l2_hw_freq_seek)
2763  #define	VIDIOC_S_DV_TIMINGS	_IOWR('V', 87, struct v4l2_dv_timings)
2764  #define	VIDIOC_G_DV_TIMINGS	_IOWR('V', 88, struct v4l2_dv_timings)
2765  #define	VIDIOC_DQEVENT		 _IOR('V', 89, struct v4l2_event)
2766  #define	VIDIOC_SUBSCRIBE_EVENT	 _IOW('V', 90, struct v4l2_event_subscription)
2767  #define	VIDIOC_UNSUBSCRIBE_EVENT _IOW('V', 91, struct v4l2_event_subscription)
2768  #define VIDIOC_CREATE_BUFS	_IOWR('V', 92, struct v4l2_create_buffers)
2769  #define VIDIOC_PREPARE_BUF	_IOWR('V', 93, struct v4l2_buffer)
2770  #define VIDIOC_G_SELECTION	_IOWR('V', 94, struct v4l2_selection)
2771  #define VIDIOC_S_SELECTION	_IOWR('V', 95, struct v4l2_selection)
2772  #define VIDIOC_DECODER_CMD	_IOWR('V', 96, struct v4l2_decoder_cmd)
2773  #define VIDIOC_TRY_DECODER_CMD	_IOWR('V', 97, struct v4l2_decoder_cmd)
2774  #define VIDIOC_ENUM_DV_TIMINGS  _IOWR('V', 98, struct v4l2_enum_dv_timings)
2775  #define VIDIOC_QUERY_DV_TIMINGS  _IOR('V', 99, struct v4l2_dv_timings)
2776  #define VIDIOC_DV_TIMINGS_CAP   _IOWR('V', 100, struct v4l2_dv_timings_cap)
2777  #define VIDIOC_ENUM_FREQ_BANDS	_IOWR('V', 101, struct v4l2_frequency_band)
2778  
2779  /*
2780   * Experimental, meant for debugging, testing and internal use.
2781   * Never use this in applications!
2782   */
2783  #define VIDIOC_DBG_G_CHIP_INFO  _IOWR('V', 102, struct v4l2_dbg_chip_info)
2784  
2785  #define VIDIOC_QUERY_EXT_CTRL	_IOWR('V', 103, struct v4l2_query_ext_ctrl)
2786  #define VIDIOC_REMOVE_BUFS	_IOWR('V', 104, struct v4l2_remove_buffers)
2787  
2788  
2789  /* Reminder: when adding new ioctls please add support for them to
2790     drivers/media/v4l2-core/v4l2-compat-ioctl32.c as well! */
2791  
2792  #define BASE_VIDIOC_PRIVATE	192		/* 192-255 are private */
2793  
2794  /* Deprecated definitions kept for backwards compatibility */
2795  #ifndef __KERNEL__
2796  #define V4L2_PIX_FMT_HM12 V4L2_PIX_FMT_NV12_16L16
2797  #define V4L2_PIX_FMT_SUNXI_TILED_NV12 V4L2_PIX_FMT_NV12_32L32
2798  /*
2799   * This capability was never implemented, anyone using this cap should drop it
2800   * from their code.
2801   */
2802  #define V4L2_CAP_ASYNCIO 0x02000000
2803  #endif
2804  
2805  #endif /* _UAPI__LINUX_VIDEODEV2_H */
2806