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1#ifndef __LINUX_VIDEODEV2_H
2#define __LINUX_VIDEODEV2_H
3/*
4 * Video for Linux Two
5 *
6 * Header file for v4l or V4L2 drivers and applications, for
7 * Linux kernels 2.2.x or 2.4.x.
8 *
9 * See http://bytesex.org/v4l/ for API specs and other
10 * v4l2 documentation.
11 *
12 * Author: Bill Dirks <bdirks@pacbell.net>
13 * Justin Schoeman
14 * et al.
15 */
16#ifdef __KERNEL__
17#include <linux/time.h> /* need struct timeval */
18#include <linux/poll.h>
19#include <linux/device.h>
20#endif
21#include <linux/compiler.h> /* need __user */
22
23
24#define OBSOLETE_OWNER 1 /* It will be removed for 2.6.15 */
25#define HAVE_V4L2 1
26
27/*
28 * Common stuff for both V4L1 and V4L2
29 * Moved from videodev.h
30 */
31
32#define VIDEO_MAX_FRAME 32
33
34#define VID_TYPE_CAPTURE 1 /* Can capture */
35#define VID_TYPE_TUNER 2 /* Can tune */
36#define VID_TYPE_TELETEXT 4 /* Does teletext */
37#define VID_TYPE_OVERLAY 8 /* Overlay onto frame buffer */
38#define VID_TYPE_CHROMAKEY 16 /* Overlay by chromakey */
39#define VID_TYPE_CLIPPING 32 /* Can clip */
40#define VID_TYPE_FRAMERAM 64 /* Uses the frame buffer memory */
41#define VID_TYPE_SCALES 128 /* Scalable */
42#define VID_TYPE_MONOCHROME 256 /* Monochrome only */
43#define VID_TYPE_SUBCAPTURE 512 /* Can capture subareas of the image */
44#define VID_TYPE_MPEG_DECODER 1024 /* Can decode MPEG streams */
45#define VID_TYPE_MPEG_ENCODER 2048 /* Can encode MPEG streams */
46#define VID_TYPE_MJPEG_DECODER 4096 /* Can decode MJPEG streams */
47#define VID_TYPE_MJPEG_ENCODER 8192 /* Can encode MJPEG streams */
48
49#ifdef __KERNEL__
50
51#define VFL_TYPE_GRABBER 0
52#define VFL_TYPE_VBI 1
53#define VFL_TYPE_RADIO 2
54#define VFL_TYPE_VTX 3
55
56struct video_device
57{
58 /* device info */
59 struct device *dev;
60 char name[32];
61 int type; /* v4l1 */
62 int type2; /* v4l2 */
63 int hardware;
64 int minor;
65
66 /* device ops + callbacks */
67 struct file_operations *fops;
68 void (*release)(struct video_device *vfd);
69
70
71#if OBSOLETE_OWNER /* to be removed in 2.6.15 */
72 /* obsolete -- fops->owner is used instead */
73 struct module *owner;
74 /* dev->driver_data will be used instead some day.
75 * Use the video_{get|set}_drvdata() helper functions,
76 * so the switch over will be transparent for you.
77 * Or use {pci|usb}_{get|set}_drvdata() directly. */
78 void *priv;
79#endif
80
81 /* for videodev.c intenal usage -- please don't touch */
82 int users; /* video_exclusive_{open|close} ... */
83 struct semaphore lock; /* ... helper function uses these */
84 char devfs_name[64]; /* devfs */
85 struct class_device class_dev; /* sysfs */
86};
87
88#define VIDEO_MAJOR 81
89
90extern int video_register_device(struct video_device *, int type, int nr);
91extern void video_unregister_device(struct video_device *);
92extern int video_usercopy(struct inode *inode, struct file *file,
93 unsigned int cmd, unsigned long arg,
94 int (*func)(struct inode *inode, struct file *file,
95 unsigned int cmd, void *arg));
96
97/* helper functions to alloc / release struct video_device, the
98 later can be used for video_device->release() */
99struct video_device *video_device_alloc(void);
100void video_device_release(struct video_device *vfd);
101
102#endif
103
104/*
105 * M I S C E L L A N E O U S
106 */
107
108/* Four-character-code (FOURCC) */
109#define v4l2_fourcc(a,b,c,d)\
110 (((__u32)(a)<<0)|((__u32)(b)<<8)|((__u32)(c)<<16)|((__u32)(d)<<24))
111
112/*
113 * E N U M S
114 */
115enum v4l2_field {
116 V4L2_FIELD_ANY = 0, /* driver can choose from none,
117 top, bottom, interlaced
118 depending on whatever it thinks
119 is approximate ... */
120 V4L2_FIELD_NONE = 1, /* this device has no fields ... */
121 V4L2_FIELD_TOP = 2, /* top field only */
122 V4L2_FIELD_BOTTOM = 3, /* bottom field only */
123 V4L2_FIELD_INTERLACED = 4, /* both fields interlaced */
124 V4L2_FIELD_SEQ_TB = 5, /* both fields sequential into one
125 buffer, top-bottom order */
126 V4L2_FIELD_SEQ_BT = 6, /* same as above + bottom-top order */
127 V4L2_FIELD_ALTERNATE = 7, /* both fields alternating into
128 separate buffers */
129};
130#define V4L2_FIELD_HAS_TOP(field) \
131 ((field) == V4L2_FIELD_TOP ||\
132 (field) == V4L2_FIELD_INTERLACED ||\
133 (field) == V4L2_FIELD_SEQ_TB ||\
134 (field) == V4L2_FIELD_SEQ_BT)
135#define V4L2_FIELD_HAS_BOTTOM(field) \
136 ((field) == V4L2_FIELD_BOTTOM ||\
137 (field) == V4L2_FIELD_INTERLACED ||\
138 (field) == V4L2_FIELD_SEQ_TB ||\
139 (field) == V4L2_FIELD_SEQ_BT)
140#define V4L2_FIELD_HAS_BOTH(field) \
141 ((field) == V4L2_FIELD_INTERLACED ||\
142 (field) == V4L2_FIELD_SEQ_TB ||\
143 (field) == V4L2_FIELD_SEQ_BT)
144
145enum v4l2_buf_type {
146 V4L2_BUF_TYPE_VIDEO_CAPTURE = 1,
147 V4L2_BUF_TYPE_VIDEO_OUTPUT = 2,
148 V4L2_BUF_TYPE_VIDEO_OVERLAY = 3,
149 V4L2_BUF_TYPE_VBI_CAPTURE = 4,
150 V4L2_BUF_TYPE_VBI_OUTPUT = 5,
151#if 1
152 /* Experimental Sliced VBI */
153 V4L2_BUF_TYPE_SLICED_VBI_CAPTURE = 6,
154 V4L2_BUF_TYPE_SLICED_VBI_OUTPUT = 7,
155#endif
156 V4L2_BUF_TYPE_PRIVATE = 0x80,
157};
158
159enum v4l2_ctrl_type {
160 V4L2_CTRL_TYPE_INTEGER = 1,
161 V4L2_CTRL_TYPE_BOOLEAN = 2,
162 V4L2_CTRL_TYPE_MENU = 3,
163 V4L2_CTRL_TYPE_BUTTON = 4,
164};
165
166enum v4l2_tuner_type {
167 V4L2_TUNER_RADIO = 1,
168 V4L2_TUNER_ANALOG_TV = 2,
169 V4L2_TUNER_DIGITAL_TV = 3,
170};
171
172enum v4l2_memory {
173 V4L2_MEMORY_MMAP = 1,
174 V4L2_MEMORY_USERPTR = 2,
175 V4L2_MEMORY_OVERLAY = 3,
176};
177
178/* see also http://vektor.theorem.ca/graphics/ycbcr/ */
179enum v4l2_colorspace {
180 /* ITU-R 601 -- broadcast NTSC/PAL */
181 V4L2_COLORSPACE_SMPTE170M = 1,
182
183 /* 1125-Line (US) HDTV */
184 V4L2_COLORSPACE_SMPTE240M = 2,
185
186 /* HD and modern captures. */
187 V4L2_COLORSPACE_REC709 = 3,
188
189 /* broken BT878 extents (601, luma range 16-253 instead of 16-235) */
190 V4L2_COLORSPACE_BT878 = 4,
191
192 /* These should be useful. Assume 601 extents. */
193 V4L2_COLORSPACE_470_SYSTEM_M = 5,
194 V4L2_COLORSPACE_470_SYSTEM_BG = 6,
195
196 /* I know there will be cameras that send this. So, this is
197 * unspecified chromaticities and full 0-255 on each of the
198 * Y'CbCr components
199 */
200 V4L2_COLORSPACE_JPEG = 7,
201
202 /* For RGB colourspaces, this is probably a good start. */
203 V4L2_COLORSPACE_SRGB = 8,
204};
205
206enum v4l2_priority {
207 V4L2_PRIORITY_UNSET = 0, /* not initialized */
208 V4L2_PRIORITY_BACKGROUND = 1,
209 V4L2_PRIORITY_INTERACTIVE = 2,
210 V4L2_PRIORITY_RECORD = 3,
211 V4L2_PRIORITY_DEFAULT = V4L2_PRIORITY_INTERACTIVE,
212};
213
214struct v4l2_rect {
215 __s32 left;
216 __s32 top;
217 __s32 width;
218 __s32 height;
219};
220
221struct v4l2_fract {
222 __u32 numerator;
223 __u32 denominator;
224};
225
226/*
227 * D R I V E R C A P A B I L I T I E S
228 */
229struct v4l2_capability
230{
231 __u8 driver[16]; /* i.e. "bttv" */
232 __u8 card[32]; /* i.e. "Hauppauge WinTV" */
233 __u8 bus_info[32]; /* "PCI:" + pci_name(pci_dev) */
234 __u32 version; /* should use KERNEL_VERSION() */
235 __u32 capabilities; /* Device capabilities */
236 __u32 reserved[4];
237};
238
239/* Values for 'capabilities' field */
240#define V4L2_CAP_VIDEO_CAPTURE 0x00000001 /* Is a video capture device */
241#define V4L2_CAP_VIDEO_OUTPUT 0x00000002 /* Is a video output device */
242#define V4L2_CAP_VIDEO_OVERLAY 0x00000004 /* Can do video overlay */
243#define V4L2_CAP_VBI_CAPTURE 0x00000010 /* Is a raw VBI capture device */
244#define V4L2_CAP_VBI_OUTPUT 0x00000020 /* Is a raw VBI output device */
245#if 1
246#define V4L2_CAP_SLICED_VBI_CAPTURE 0x00000040 /* Is a sliced VBI capture device */
247#define V4L2_CAP_SLICED_VBI_OUTPUT 0x00000080 /* Is a sliced VBI output device */
248#endif
249#define V4L2_CAP_RDS_CAPTURE 0x00000100 /* RDS data capture */
250
251#define V4L2_CAP_TUNER 0x00010000 /* has a tuner */
252#define V4L2_CAP_AUDIO 0x00020000 /* has audio support */
253#define V4L2_CAP_RADIO 0x00040000 /* is a radio device */
254
255#define V4L2_CAP_READWRITE 0x01000000 /* read/write systemcalls */
256#define V4L2_CAP_ASYNCIO 0x02000000 /* async I/O */
257#define V4L2_CAP_STREAMING 0x04000000 /* streaming I/O ioctls */
258
259/*
260 * V I D E O I M A G E F O R M A T
261 */
262
263struct v4l2_pix_format
264{
265 __u32 width;
266 __u32 height;
267 __u32 pixelformat;
268 enum v4l2_field field;
269 __u32 bytesperline; /* for padding, zero if unused */
270 __u32 sizeimage;
271 enum v4l2_colorspace colorspace;
272 __u32 priv; /* private data, depends on pixelformat */
273};
274
275/* Pixel format FOURCC depth Description */
276#define V4L2_PIX_FMT_RGB332 v4l2_fourcc('R','G','B','1') /* 8 RGB-3-3-2 */
277#define V4L2_PIX_FMT_RGB555 v4l2_fourcc('R','G','B','O') /* 16 RGB-5-5-5 */
278#define V4L2_PIX_FMT_RGB565 v4l2_fourcc('R','G','B','P') /* 16 RGB-5-6-5 */
279#define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R','G','B','Q') /* 16 RGB-5-5-5 BE */
280#define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R','G','B','R') /* 16 RGB-5-6-5 BE */
281#define V4L2_PIX_FMT_BGR24 v4l2_fourcc('B','G','R','3') /* 24 BGR-8-8-8 */
282#define V4L2_PIX_FMT_RGB24 v4l2_fourcc('R','G','B','3') /* 24 RGB-8-8-8 */
283#define V4L2_PIX_FMT_BGR32 v4l2_fourcc('B','G','R','4') /* 32 BGR-8-8-8-8 */
284#define V4L2_PIX_FMT_RGB32 v4l2_fourcc('R','G','B','4') /* 32 RGB-8-8-8-8 */
285#define V4L2_PIX_FMT_GREY v4l2_fourcc('G','R','E','Y') /* 8 Greyscale */
286#define V4L2_PIX_FMT_YVU410 v4l2_fourcc('Y','V','U','9') /* 9 YVU 4:1:0 */
287#define V4L2_PIX_FMT_YVU420 v4l2_fourcc('Y','V','1','2') /* 12 YVU 4:2:0 */
288#define V4L2_PIX_FMT_YUYV v4l2_fourcc('Y','U','Y','V') /* 16 YUV 4:2:2 */
289#define V4L2_PIX_FMT_UYVY v4l2_fourcc('U','Y','V','Y') /* 16 YUV 4:2:2 */
290#define V4L2_PIX_FMT_YUV422P v4l2_fourcc('4','2','2','P') /* 16 YVU422 planar */
291#define V4L2_PIX_FMT_YUV411P v4l2_fourcc('4','1','1','P') /* 16 YVU411 planar */
292#define V4L2_PIX_FMT_Y41P v4l2_fourcc('Y','4','1','P') /* 12 YUV 4:1:1 */
293
294/* two planes -- one Y, one Cr + Cb interleaved */
295#define V4L2_PIX_FMT_NV12 v4l2_fourcc('N','V','1','2') /* 12 Y/CbCr 4:2:0 */
296#define V4L2_PIX_FMT_NV21 v4l2_fourcc('N','V','2','1') /* 12 Y/CrCb 4:2:0 */
297
298/* The following formats are not defined in the V4L2 specification */
299#define V4L2_PIX_FMT_YUV410 v4l2_fourcc('Y','U','V','9') /* 9 YUV 4:1:0 */
300#define V4L2_PIX_FMT_YUV420 v4l2_fourcc('Y','U','1','2') /* 12 YUV 4:2:0 */
301#define V4L2_PIX_FMT_YYUV v4l2_fourcc('Y','Y','U','V') /* 16 YUV 4:2:2 */
302#define V4L2_PIX_FMT_HI240 v4l2_fourcc('H','I','2','4') /* 8 8-bit color */
303
304/* see http://www.siliconimaging.com/RGB%20Bayer.htm */
305#define V4L2_PIX_FMT_SBGGR8 v4l2_fourcc('B','A','8','1') /* 8 BGBG.. GRGR.. */
306
307/* compressed formats */
308#define V4L2_PIX_FMT_MJPEG v4l2_fourcc('M','J','P','G') /* Motion-JPEG */
309#define V4L2_PIX_FMT_JPEG v4l2_fourcc('J','P','E','G') /* JFIF JPEG */
310#define V4L2_PIX_FMT_DV v4l2_fourcc('d','v','s','d') /* 1394 */
311#define V4L2_PIX_FMT_MPEG v4l2_fourcc('M','P','E','G') /* MPEG */
312
313/* Vendor-specific formats */
314#define V4L2_PIX_FMT_WNVA v4l2_fourcc('W','N','V','A') /* Winnov hw compress */
315#define V4L2_PIX_FMT_SN9C10X v4l2_fourcc('S','9','1','0') /* SN9C10x compression */
316#define V4L2_PIX_FMT_PWC1 v4l2_fourcc('P','W','C','1') /* pwc older webcam */
317#define V4L2_PIX_FMT_PWC2 v4l2_fourcc('P','W','C','2') /* pwc newer webcam */
318#define V4L2_PIX_FMT_ET61X251 v4l2_fourcc('E','6','2','5') /* ET61X251 compression */
319
320/*
321 * F O R M A T E N U M E R A T I O N
322 */
323struct v4l2_fmtdesc
324{
325 __u32 index; /* Format number */
326 enum v4l2_buf_type type; /* buffer type */
327 __u32 flags;
328 __u8 description[32]; /* Description string */
329 __u32 pixelformat; /* Format fourcc */
330 __u32 reserved[4];
331};
332
333#define V4L2_FMT_FLAG_COMPRESSED 0x0001
334
335
336/*
337 * T I M E C O D E
338 */
339struct v4l2_timecode
340{
341 __u32 type;
342 __u32 flags;
343 __u8 frames;
344 __u8 seconds;
345 __u8 minutes;
346 __u8 hours;
347 __u8 userbits[4];
348};
349
350/* Type */
351#define V4L2_TC_TYPE_24FPS 1
352#define V4L2_TC_TYPE_25FPS 2
353#define V4L2_TC_TYPE_30FPS 3
354#define V4L2_TC_TYPE_50FPS 4
355#define V4L2_TC_TYPE_60FPS 5
356
357/* Flags */
358#define V4L2_TC_FLAG_DROPFRAME 0x0001 /* "drop-frame" mode */
359#define V4L2_TC_FLAG_COLORFRAME 0x0002
360#define V4L2_TC_USERBITS_field 0x000C
361#define V4L2_TC_USERBITS_USERDEFINED 0x0000
362#define V4L2_TC_USERBITS_8BITCHARS 0x0008
363/* The above is based on SMPTE timecodes */
364
365
366/*
367 * M P E G C O M P R E S S I O N P A R A M E T E R S
368 *
369 * ### WARNING: this is still work-in-progress right now, most likely
370 * ### there will be some incompatible changes.
371 *
372 */
373
374
375enum v4l2_bitrate_mode {
376 V4L2_BITRATE_NONE = 0, /* not specified */
377 V4L2_BITRATE_CBR, /* constant bitrate */
378 V4L2_BITRATE_VBR, /* variable bitrate */
379};
380struct v4l2_bitrate {
381 /* rates are specified in kbit/sec */
382 enum v4l2_bitrate_mode mode;
383 __u32 min;
384 __u32 target; /* use this one for CBR */
385 __u32 max;
386};
387
388enum v4l2_mpeg_streamtype {
389 V4L2_MPEG_SS_1, /* MPEG-1 system stream */
390 V4L2_MPEG_PS_2, /* MPEG-2 program stream */
391 V4L2_MPEG_TS_2, /* MPEG-2 transport stream */
392 V4L2_MPEG_PS_DVD, /* MPEG-2 program stream with DVD header fixups */
393};
394enum v4l2_mpeg_audiotype {
395 V4L2_MPEG_AU_2_I, /* MPEG-2 layer 1 */
396 V4L2_MPEG_AU_2_II, /* MPEG-2 layer 2 */
397 V4L2_MPEG_AU_2_III, /* MPEG-2 layer 3 */
398 V4L2_MPEG_AC3, /* AC3 */
399 V4L2_MPEG_LPCM, /* LPCM */
400};
401enum v4l2_mpeg_videotype {
402 V4L2_MPEG_VI_1, /* MPEG-1 */
403 V4L2_MPEG_VI_2, /* MPEG-2 */
404};
405enum v4l2_mpeg_aspectratio {
406 V4L2_MPEG_ASPECT_SQUARE = 1, /* square pixel */
407 V4L2_MPEG_ASPECT_4_3 = 2, /* 4 : 3 */
408 V4L2_MPEG_ASPECT_16_9 = 3, /* 16 : 9 */
409 V4L2_MPEG_ASPECT_1_221 = 4, /* 1 : 2,21 */
410};
411
412struct v4l2_mpeg_compression {
413 /* general */
414 enum v4l2_mpeg_streamtype st_type;
415 struct v4l2_bitrate st_bitrate;
416
417 /* transport streams */
418 __u16 ts_pid_pmt;
419 __u16 ts_pid_audio;
420 __u16 ts_pid_video;
421 __u16 ts_pid_pcr;
422
423 /* program stream */
424 __u16 ps_size;
425 __u16 reserved_1; /* align */
426
427 /* audio */
428 enum v4l2_mpeg_audiotype au_type;
429 struct v4l2_bitrate au_bitrate;
430 __u32 au_sample_rate;
431 __u8 au_pesid;
432 __u8 reserved_2[3]; /* align */
433
434 /* video */
435 enum v4l2_mpeg_videotype vi_type;
436 enum v4l2_mpeg_aspectratio vi_aspect_ratio;
437 struct v4l2_bitrate vi_bitrate;
438 __u32 vi_frame_rate;
439 __u16 vi_frames_per_gop;
440 __u16 vi_bframes_count;
441 __u8 vi_pesid;
442 __u8 reserved_3[3]; /* align */
443
444 /* misc flags */
445 __u32 closed_gops:1;
446 __u32 pulldown:1;
447 __u32 reserved_4:30; /* align */
448
449 /* I don't expect the above being perfect yet ;) */
450 __u32 reserved_5[8];
451};
452
453struct v4l2_jpegcompression
454{
455 int quality;
456
457 int APPn; /* Number of APP segment to be written,
458 * must be 0..15 */
459 int APP_len; /* Length of data in JPEG APPn segment */
460 char APP_data[60]; /* Data in the JPEG APPn segment. */
461
462 int COM_len; /* Length of data in JPEG COM segment */
463 char COM_data[60]; /* Data in JPEG COM segment */
464
465 __u32 jpeg_markers; /* Which markers should go into the JPEG
466 * output. Unless you exactly know what
467 * you do, leave them untouched.
468 * Inluding less markers will make the
469 * resulting code smaller, but there will
470 * be fewer aplications which can read it.
471 * The presence of the APP and COM marker
472 * is influenced by APP_len and COM_len
473 * ONLY, not by this property! */
474
475#define V4L2_JPEG_MARKER_DHT (1<<3) /* Define Huffman Tables */
476#define V4L2_JPEG_MARKER_DQT (1<<4) /* Define Quantization Tables */
477#define V4L2_JPEG_MARKER_DRI (1<<5) /* Define Restart Interval */
478#define V4L2_JPEG_MARKER_COM (1<<6) /* Comment segment */
479#define V4L2_JPEG_MARKER_APP (1<<7) /* App segment, driver will
480 * allways use APP0 */
481};
482
483
484/*
485 * M E M O R Y - M A P P I N G B U F F E R S
486 */
487struct v4l2_requestbuffers
488{
489 __u32 count;
490 enum v4l2_buf_type type;
491 enum v4l2_memory memory;
492 __u32 reserved[2];
493};
494
495struct v4l2_buffer
496{
497 __u32 index;
498 enum v4l2_buf_type type;
499 __u32 bytesused;
500 __u32 flags;
501 enum v4l2_field field;
502 struct timeval timestamp;
503 struct v4l2_timecode timecode;
504 __u32 sequence;
505
506 /* memory location */
507 enum v4l2_memory memory;
508 union {
509 __u32 offset;
510 unsigned long userptr;
511 } m;
512 __u32 length;
513 __u32 input;
514 __u32 reserved;
515};
516
517/* Flags for 'flags' field */
518#define V4L2_BUF_FLAG_MAPPED 0x0001 /* Buffer is mapped (flag) */
519#define V4L2_BUF_FLAG_QUEUED 0x0002 /* Buffer is queued for processing */
520#define V4L2_BUF_FLAG_DONE 0x0004 /* Buffer is ready */
521#define V4L2_BUF_FLAG_KEYFRAME 0x0008 /* Image is a keyframe (I-frame) */
522#define V4L2_BUF_FLAG_PFRAME 0x0010 /* Image is a P-frame */
523#define V4L2_BUF_FLAG_BFRAME 0x0020 /* Image is a B-frame */
524#define V4L2_BUF_FLAG_TIMECODE 0x0100 /* timecode field is valid */
525#define V4L2_BUF_FLAG_INPUT 0x0200 /* input field is valid */
526
527/*
528 * O V E R L A Y P R E V I E W
529 */
530struct v4l2_framebuffer
531{
532 __u32 capability;
533 __u32 flags;
534/* FIXME: in theory we should pass something like PCI device + memory
535 * region + offset instead of some physical address */
536 void* base;
537 struct v4l2_pix_format fmt;
538};
539/* Flags for the 'capability' field. Read only */
540#define V4L2_FBUF_CAP_EXTERNOVERLAY 0x0001
541#define V4L2_FBUF_CAP_CHROMAKEY 0x0002
542#define V4L2_FBUF_CAP_LIST_CLIPPING 0x0004
543#define V4L2_FBUF_CAP_BITMAP_CLIPPING 0x0008
544/* Flags for the 'flags' field. */
545#define V4L2_FBUF_FLAG_PRIMARY 0x0001
546#define V4L2_FBUF_FLAG_OVERLAY 0x0002
547#define V4L2_FBUF_FLAG_CHROMAKEY 0x0004
548
549struct v4l2_clip
550{
551 struct v4l2_rect c;
552 struct v4l2_clip __user *next;
553};
554
555struct v4l2_window
556{
557 struct v4l2_rect w;
558 enum v4l2_field field;
559 __u32 chromakey;
560 struct v4l2_clip __user *clips;
561 __u32 clipcount;
562 void __user *bitmap;
563};
564
565
566/*
567 * C A P T U R E P A R A M E T E R S
568 */
569struct v4l2_captureparm
570{
571 __u32 capability; /* Supported modes */
572 __u32 capturemode; /* Current mode */
573 struct v4l2_fract timeperframe; /* Time per frame in .1us units */
574 __u32 extendedmode; /* Driver-specific extensions */
575 __u32 readbuffers; /* # of buffers for read */
576 __u32 reserved[4];
577};
578/* Flags for 'capability' and 'capturemode' fields */
579#define V4L2_MODE_HIGHQUALITY 0x0001 /* High quality imaging mode */
580#define V4L2_CAP_TIMEPERFRAME 0x1000 /* timeperframe field is supported */
581
582struct v4l2_outputparm
583{
584 __u32 capability; /* Supported modes */
585 __u32 outputmode; /* Current mode */
586 struct v4l2_fract timeperframe; /* Time per frame in seconds */
587 __u32 extendedmode; /* Driver-specific extensions */
588 __u32 writebuffers; /* # of buffers for write */
589 __u32 reserved[4];
590};
591
592/*
593 * I N P U T I M A G E C R O P P I N G
594 */
595
596struct v4l2_cropcap {
597 enum v4l2_buf_type type;
598 struct v4l2_rect bounds;
599 struct v4l2_rect defrect;
600 struct v4l2_fract pixelaspect;
601};
602
603struct v4l2_crop {
604 enum v4l2_buf_type type;
605 struct v4l2_rect c;
606};
607
608/*
609 * A N A L O G V I D E O S T A N D A R D
610 */
611
612typedef __u64 v4l2_std_id;
613
614/* one bit for each */
615#define V4L2_STD_PAL_B ((v4l2_std_id)0x00000001)
616#define V4L2_STD_PAL_B1 ((v4l2_std_id)0x00000002)
617#define V4L2_STD_PAL_G ((v4l2_std_id)0x00000004)
618#define V4L2_STD_PAL_H ((v4l2_std_id)0x00000008)
619#define V4L2_STD_PAL_I ((v4l2_std_id)0x00000010)
620#define V4L2_STD_PAL_D ((v4l2_std_id)0x00000020)
621#define V4L2_STD_PAL_D1 ((v4l2_std_id)0x00000040)
622#define V4L2_STD_PAL_K ((v4l2_std_id)0x00000080)
623
624#define V4L2_STD_PAL_M ((v4l2_std_id)0x00000100)
625#define V4L2_STD_PAL_N ((v4l2_std_id)0x00000200)
626#define V4L2_STD_PAL_Nc ((v4l2_std_id)0x00000400)
627#define V4L2_STD_PAL_60 ((v4l2_std_id)0x00000800)
628
629#define V4L2_STD_NTSC_M ((v4l2_std_id)0x00001000)
630#define V4L2_STD_NTSC_M_JP ((v4l2_std_id)0x00002000)
631#define V4L2_STD_NTSC_443 ((v4l2_std_id)0x00004000)
632#define V4L2_STD_NTSC_M_KR ((v4l2_std_id)0x00008000)
633
634#define V4L2_STD_SECAM_B ((v4l2_std_id)0x00010000)
635#define V4L2_STD_SECAM_D ((v4l2_std_id)0x00020000)
636#define V4L2_STD_SECAM_G ((v4l2_std_id)0x00040000)
637#define V4L2_STD_SECAM_H ((v4l2_std_id)0x00080000)
638#define V4L2_STD_SECAM_K ((v4l2_std_id)0x00100000)
639#define V4L2_STD_SECAM_K1 ((v4l2_std_id)0x00200000)
640#define V4L2_STD_SECAM_L ((v4l2_std_id)0x00400000)
641#define V4L2_STD_SECAM_LC ((v4l2_std_id)0x00800000)
642
643/* ATSC/HDTV */
644#define V4L2_STD_ATSC_8_VSB ((v4l2_std_id)0x01000000)
645#define V4L2_STD_ATSC_16_VSB ((v4l2_std_id)0x02000000)
646
647/* some merged standards */
648#define V4L2_STD_MN (V4L2_STD_PAL_M|V4L2_STD_PAL_N|V4L2_STD_PAL_Nc|V4L2_STD_NTSC)
649#define V4L2_STD_B (V4L2_STD_PAL_B|V4L2_STD_PAL_B1|V4L2_STD_SECAM_B)
650#define V4L2_STD_GH (V4L2_STD_PAL_G|V4L2_STD_PAL_H|V4L2_STD_SECAM_G|V4L2_STD_SECAM_H)
651#define V4L2_STD_DK (V4L2_STD_PAL_DK|V4L2_STD_SECAM_DK)
652
653/* some common needed stuff */
654#define V4L2_STD_PAL_BG (V4L2_STD_PAL_B |\
655 V4L2_STD_PAL_B1 |\
656 V4L2_STD_PAL_G)
657#define V4L2_STD_PAL_DK (V4L2_STD_PAL_D |\
658 V4L2_STD_PAL_D1 |\
659 V4L2_STD_PAL_K)
660#define V4L2_STD_PAL (V4L2_STD_PAL_BG |\
661 V4L2_STD_PAL_DK |\
662 V4L2_STD_PAL_H |\
663 V4L2_STD_PAL_I)
664#define V4L2_STD_NTSC (V4L2_STD_NTSC_M |\
665 V4L2_STD_NTSC_M_JP |\
666 V4L2_STD_NTSC_M_KR)
667#define V4L2_STD_SECAM_DK (V4L2_STD_SECAM_D |\
668 V4L2_STD_SECAM_K |\
669 V4L2_STD_SECAM_K1)
670#define V4L2_STD_SECAM (V4L2_STD_SECAM_B |\
671 V4L2_STD_SECAM_G |\
672 V4L2_STD_SECAM_H |\
673 V4L2_STD_SECAM_DK |\
674 V4L2_STD_SECAM_L |\
675 V4L2_STD_SECAM_LC)
676
677#define V4L2_STD_525_60 (V4L2_STD_PAL_M |\
678 V4L2_STD_PAL_60 |\
679 V4L2_STD_NTSC |\
680 V4L2_STD_NTSC_443)
681#define V4L2_STD_625_50 (V4L2_STD_PAL |\
682 V4L2_STD_PAL_N |\
683 V4L2_STD_PAL_Nc |\
684 V4L2_STD_SECAM)
685#define V4L2_STD_ATSC (V4L2_STD_ATSC_8_VSB |\
686 V4L2_STD_ATSC_16_VSB)
687
688#define V4L2_STD_UNKNOWN 0
689#define V4L2_STD_ALL (V4L2_STD_525_60 |\
690 V4L2_STD_625_50)
691
692struct v4l2_standard
693{
694 __u32 index;
695 v4l2_std_id id;
696 __u8 name[24];
697 struct v4l2_fract frameperiod; /* Frames, not fields */
698 __u32 framelines;
699 __u32 reserved[4];
700};
701
702
703/*
704 * V I D E O I N P U T S
705 */
706struct v4l2_input
707{
708 __u32 index; /* Which input */
709 __u8 name[32]; /* Label */
710 __u32 type; /* Type of input */
711 __u32 audioset; /* Associated audios (bitfield) */
712 __u32 tuner; /* Associated tuner */
713 v4l2_std_id std;
714 __u32 status;
715 __u32 reserved[4];
716};
717/* Values for the 'type' field */
718#define V4L2_INPUT_TYPE_TUNER 1
719#define V4L2_INPUT_TYPE_CAMERA 2
720
721/* field 'status' - general */
722#define V4L2_IN_ST_NO_POWER 0x00000001 /* Attached device is off */
723#define V4L2_IN_ST_NO_SIGNAL 0x00000002
724#define V4L2_IN_ST_NO_COLOR 0x00000004
725
726/* field 'status' - analog */
727#define V4L2_IN_ST_NO_H_LOCK 0x00000100 /* No horizontal sync lock */
728#define V4L2_IN_ST_COLOR_KILL 0x00000200 /* Color killer is active */
729
730/* field 'status' - digital */
731#define V4L2_IN_ST_NO_SYNC 0x00010000 /* No synchronization lock */
732#define V4L2_IN_ST_NO_EQU 0x00020000 /* No equalizer lock */
733#define V4L2_IN_ST_NO_CARRIER 0x00040000 /* Carrier recovery failed */
734
735/* field 'status' - VCR and set-top box */
736#define V4L2_IN_ST_MACROVISION 0x01000000 /* Macrovision detected */
737#define V4L2_IN_ST_NO_ACCESS 0x02000000 /* Conditional access denied */
738#define V4L2_IN_ST_VTR 0x04000000 /* VTR time constant */
739
740/*
741 * V I D E O O U T P U T S
742 */
743struct v4l2_output
744{
745 __u32 index; /* Which output */
746 __u8 name[32]; /* Label */
747 __u32 type; /* Type of output */
748 __u32 audioset; /* Associated audios (bitfield) */
749 __u32 modulator; /* Associated modulator */
750 v4l2_std_id std;
751 __u32 reserved[4];
752};
753/* Values for the 'type' field */
754#define V4L2_OUTPUT_TYPE_MODULATOR 1
755#define V4L2_OUTPUT_TYPE_ANALOG 2
756#define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY 3
757
758/*
759 * C O N T R O L S
760 */
761struct v4l2_control
762{
763 __u32 id;
764 __s32 value;
765};
766
767/* Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
768struct v4l2_queryctrl
769{
770 __u32 id;
771 enum v4l2_ctrl_type type;
772 __u8 name[32]; /* Whatever */
773 __s32 minimum; /* Note signedness */
774 __s32 maximum;
775 __s32 step;
776 __s32 default_value;
777 __u32 flags;
778 __u32 reserved[2];
779};
780
781/* Used in the VIDIOC_QUERYMENU ioctl for querying menu items */
782struct v4l2_querymenu
783{
784 __u32 id;
785 __u32 index;
786 __u8 name[32]; /* Whatever */
787 __u32 reserved;
788};
789
790/* Control flags */
791#define V4L2_CTRL_FLAG_DISABLED 0x0001
792#define V4L2_CTRL_FLAG_GRABBED 0x0002
793
794/* Control IDs defined by V4L2 */
795#define V4L2_CID_BASE 0x00980900
796/* IDs reserved for driver specific controls */
797#define V4L2_CID_PRIVATE_BASE 0x08000000
798
799#define V4L2_CID_BRIGHTNESS (V4L2_CID_BASE+0)
800#define V4L2_CID_CONTRAST (V4L2_CID_BASE+1)
801#define V4L2_CID_SATURATION (V4L2_CID_BASE+2)
802#define V4L2_CID_HUE (V4L2_CID_BASE+3)
803#define V4L2_CID_AUDIO_VOLUME (V4L2_CID_BASE+5)
804#define V4L2_CID_AUDIO_BALANCE (V4L2_CID_BASE+6)
805#define V4L2_CID_AUDIO_BASS (V4L2_CID_BASE+7)
806#define V4L2_CID_AUDIO_TREBLE (V4L2_CID_BASE+8)
807#define V4L2_CID_AUDIO_MUTE (V4L2_CID_BASE+9)
808#define V4L2_CID_AUDIO_LOUDNESS (V4L2_CID_BASE+10)
809#define V4L2_CID_BLACK_LEVEL (V4L2_CID_BASE+11)
810#define V4L2_CID_AUTO_WHITE_BALANCE (V4L2_CID_BASE+12)
811#define V4L2_CID_DO_WHITE_BALANCE (V4L2_CID_BASE+13)
812#define V4L2_CID_RED_BALANCE (V4L2_CID_BASE+14)
813#define V4L2_CID_BLUE_BALANCE (V4L2_CID_BASE+15)
814#define V4L2_CID_GAMMA (V4L2_CID_BASE+16)
815#define V4L2_CID_WHITENESS (V4L2_CID_GAMMA) /* ? Not sure */
816#define V4L2_CID_EXPOSURE (V4L2_CID_BASE+17)
817#define V4L2_CID_AUTOGAIN (V4L2_CID_BASE+18)
818#define V4L2_CID_GAIN (V4L2_CID_BASE+19)
819#define V4L2_CID_HFLIP (V4L2_CID_BASE+20)
820#define V4L2_CID_VFLIP (V4L2_CID_BASE+21)
821#define V4L2_CID_HCENTER (V4L2_CID_BASE+22)
822#define V4L2_CID_VCENTER (V4L2_CID_BASE+23)
823#define V4L2_CID_LASTP1 (V4L2_CID_BASE+24) /* last CID + 1 */
824
825/*
826 * T U N I N G
827 */
828struct v4l2_tuner
829{
830 __u32 index;
831 __u8 name[32];
832 enum v4l2_tuner_type type;
833 __u32 capability;
834 __u32 rangelow;
835 __u32 rangehigh;
836 __u32 rxsubchans;
837 __u32 audmode;
838 __s32 signal;
839 __s32 afc;
840 __u32 reserved[4];
841};
842
843struct v4l2_modulator
844{
845 __u32 index;
846 __u8 name[32];
847 __u32 capability;
848 __u32 rangelow;
849 __u32 rangehigh;
850 __u32 txsubchans;
851 __u32 reserved[4];
852};
853
854/* Flags for the 'capability' field */
855#define V4L2_TUNER_CAP_LOW 0x0001
856#define V4L2_TUNER_CAP_NORM 0x0002
857#define V4L2_TUNER_CAP_STEREO 0x0010
858#define V4L2_TUNER_CAP_LANG2 0x0020
859#define V4L2_TUNER_CAP_SAP 0x0020
860#define V4L2_TUNER_CAP_LANG1 0x0040
861
862/* Flags for the 'rxsubchans' field */
863#define V4L2_TUNER_SUB_MONO 0x0001
864#define V4L2_TUNER_SUB_STEREO 0x0002
865#define V4L2_TUNER_SUB_LANG2 0x0004
866#define V4L2_TUNER_SUB_SAP 0x0004
867#define V4L2_TUNER_SUB_LANG1 0x0008
868
869/* Values for the 'audmode' field */
870#define V4L2_TUNER_MODE_MONO 0x0000
871#define V4L2_TUNER_MODE_STEREO 0x0001
872#define V4L2_TUNER_MODE_LANG2 0x0002
873#define V4L2_TUNER_MODE_SAP 0x0002
874#define V4L2_TUNER_MODE_LANG1 0x0003
875
876struct v4l2_frequency
877{
878 __u32 tuner;
879 enum v4l2_tuner_type type;
880 __u32 frequency;
881 __u32 reserved[8];
882};
883
884/*
885 * A U D I O
886 */
887struct v4l2_audio
888{
889 __u32 index;
890 __u8 name[32];
891 __u32 capability;
892 __u32 mode;
893 __u32 reserved[2];
894};
895/* Flags for the 'capability' field */
896#define V4L2_AUDCAP_STEREO 0x00001
897#define V4L2_AUDCAP_AVL 0x00002
898
899/* Flags for the 'mode' field */
900#define V4L2_AUDMODE_AVL 0x00001
901
902struct v4l2_audioout
903{
904 __u32 index;
905 __u8 name[32];
906 __u32 capability;
907 __u32 mode;
908 __u32 reserved[2];
909};
910
911/*
912 * D A T A S E R V I C E S ( V B I )
913 *
914 * Data services API by Michael Schimek
915 */
916
917/* Raw VBI */
918
919struct v4l2_vbi_format
920{
921 __u32 sampling_rate; /* in 1 Hz */
922 __u32 offset;
923 __u32 samples_per_line;
924 __u32 sample_format; /* V4L2_PIX_FMT_* */
925 __s32 start[2];
926 __u32 count[2];
927 __u32 flags; /* V4L2_VBI_* */
928 __u32 reserved[2]; /* must be zero */
929};
930
931/* VBI flags */
932#define V4L2_VBI_UNSYNC (1<< 0)
933#define V4L2_VBI_INTERLACED (1<< 1)
934
935#if 1
936/* Sliced VBI
937 *
938 * This implements is a proposal V4L2 API to allow SLICED VBI
939 * required for some hardware encoders. It should change without
940 * notice in the definitive implementation.
941 */
942
943struct v4l2_sliced_vbi_format
944{
945 __u16 service_set;
946 /* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
947 service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
948 (equals frame lines 313-336 for 625 line video
949 standards, 263-286 for 525 line standards) */
950 __u16 service_lines[2][24];
951 __u32 io_size;
952 __u32 reserved[2]; /* must be zero */
953};
954
955#define V4L2_SLICED_TELETEXT_B (0x0001)
956#define V4L2_SLICED_VPS (0x0400)
957#define V4L2_SLICED_CAPTION_525 (0x1000)
958#define V4L2_SLICED_WSS_625 (0x4000)
959
960#define V4L2_SLICED_VBI_525 (V4L2_SLICED_CAPTION_525)
961#define V4L2_SLICED_VBI_625 (V4L2_SLICED_TELETEXT_B | V4L2_SLICED_VPS | V4L2_SLICED_WSS_625)
962
963struct v4l2_sliced_vbi_cap
964{
965 __u16 service_set;
966 /* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
967 service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
968 (equals frame lines 313-336 for 625 line video
969 standards, 263-286 for 525 line standards) */
970 __u16 service_lines[2][24];
971 __u32 reserved[4]; /* must be 0 */
972};
973
974struct v4l2_sliced_vbi_data
975{
976 __u32 id;
977 __u32 field; /* 0: first field, 1: second field */
978 __u32 line; /* 1-23 */
979 __u32 reserved; /* must be 0 */
980 __u8 data[48];
981};
982#endif
983
984/*
985 * A G G R E G A T E S T R U C T U R E S
986 */
987
988/* Stream data format
989 */
990struct v4l2_format
991{
992 enum v4l2_buf_type type;
993 union
994 {
995 struct v4l2_pix_format pix; // V4L2_BUF_TYPE_VIDEO_CAPTURE
996 struct v4l2_window win; // V4L2_BUF_TYPE_VIDEO_OVERLAY
997 struct v4l2_vbi_format vbi; // V4L2_BUF_TYPE_VBI_CAPTURE
998#if 1
999 struct v4l2_sliced_vbi_format sliced; // V4L2_BUF_TYPE_SLICED_VBI_CAPTURE
1000#endif
1001 __u8 raw_data[200]; // user-defined
1002 } fmt;
1003};
1004
1005
1006/* Stream type-dependent parameters
1007 */
1008struct v4l2_streamparm
1009{
1010 enum v4l2_buf_type type;
1011 union
1012 {
1013 struct v4l2_captureparm capture;
1014 struct v4l2_outputparm output;
1015 __u8 raw_data[200]; /* user-defined */
1016 } parm;
1017};
1018
1019
1020
1021/*
1022 * 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
1023 *
1024 */
1025#define VIDIOC_QUERYCAP _IOR ('V', 0, struct v4l2_capability)
1026#define VIDIOC_RESERVED _IO ('V', 1)
1027#define VIDIOC_ENUM_FMT _IOWR ('V', 2, struct v4l2_fmtdesc)
1028#define VIDIOC_G_FMT _IOWR ('V', 4, struct v4l2_format)
1029#define VIDIOC_S_FMT _IOWR ('V', 5, struct v4l2_format)
1030#define VIDIOC_G_MPEGCOMP _IOR ('V', 6, struct v4l2_mpeg_compression)
1031#define VIDIOC_S_MPEGCOMP _IOW ('V', 7, struct v4l2_mpeg_compression)
1032#define VIDIOC_REQBUFS _IOWR ('V', 8, struct v4l2_requestbuffers)
1033#define VIDIOC_QUERYBUF _IOWR ('V', 9, struct v4l2_buffer)
1034#define VIDIOC_G_FBUF _IOR ('V', 10, struct v4l2_framebuffer)
1035#define VIDIOC_S_FBUF _IOW ('V', 11, struct v4l2_framebuffer)
1036#define VIDIOC_OVERLAY _IOW ('V', 14, int)
1037#define VIDIOC_QBUF _IOWR ('V', 15, struct v4l2_buffer)
1038#define VIDIOC_DQBUF _IOWR ('V', 17, struct v4l2_buffer)
1039#define VIDIOC_STREAMON _IOW ('V', 18, int)
1040#define VIDIOC_STREAMOFF _IOW ('V', 19, int)
1041#define VIDIOC_G_PARM _IOWR ('V', 21, struct v4l2_streamparm)
1042#define VIDIOC_S_PARM _IOWR ('V', 22, struct v4l2_streamparm)
1043#define VIDIOC_G_STD _IOR ('V', 23, v4l2_std_id)
1044#define VIDIOC_S_STD _IOW ('V', 24, v4l2_std_id)
1045#define VIDIOC_ENUMSTD _IOWR ('V', 25, struct v4l2_standard)
1046#define VIDIOC_ENUMINPUT _IOWR ('V', 26, struct v4l2_input)
1047#define VIDIOC_G_CTRL _IOWR ('V', 27, struct v4l2_control)
1048#define VIDIOC_S_CTRL _IOWR ('V', 28, struct v4l2_control)
1049#define VIDIOC_G_TUNER _IOWR ('V', 29, struct v4l2_tuner)
1050#define VIDIOC_S_TUNER _IOW ('V', 30, struct v4l2_tuner)
1051#define VIDIOC_G_AUDIO _IOR ('V', 33, struct v4l2_audio)
1052#define VIDIOC_S_AUDIO _IOW ('V', 34, struct v4l2_audio)
1053#define VIDIOC_QUERYCTRL _IOWR ('V', 36, struct v4l2_queryctrl)
1054#define VIDIOC_QUERYMENU _IOWR ('V', 37, struct v4l2_querymenu)
1055#define VIDIOC_G_INPUT _IOR ('V', 38, int)
1056#define VIDIOC_S_INPUT _IOWR ('V', 39, int)
1057#define VIDIOC_G_OUTPUT _IOR ('V', 46, int)
1058#define VIDIOC_S_OUTPUT _IOWR ('V', 47, int)
1059#define VIDIOC_ENUMOUTPUT _IOWR ('V', 48, struct v4l2_output)
1060#define VIDIOC_G_AUDOUT _IOR ('V', 49, struct v4l2_audioout)
1061#define VIDIOC_S_AUDOUT _IOW ('V', 50, struct v4l2_audioout)
1062#define VIDIOC_G_MODULATOR _IOWR ('V', 54, struct v4l2_modulator)
1063#define VIDIOC_S_MODULATOR _IOW ('V', 55, struct v4l2_modulator)
1064#define VIDIOC_G_FREQUENCY _IOWR ('V', 56, struct v4l2_frequency)
1065#define VIDIOC_S_FREQUENCY _IOW ('V', 57, struct v4l2_frequency)
1066#define VIDIOC_CROPCAP _IOWR ('V', 58, struct v4l2_cropcap)
1067#define VIDIOC_G_CROP _IOWR ('V', 59, struct v4l2_crop)
1068#define VIDIOC_S_CROP _IOW ('V', 60, struct v4l2_crop)
1069#define VIDIOC_G_JPEGCOMP _IOR ('V', 61, struct v4l2_jpegcompression)
1070#define VIDIOC_S_JPEGCOMP _IOW ('V', 62, struct v4l2_jpegcompression)
1071#define VIDIOC_QUERYSTD _IOR ('V', 63, v4l2_std_id)
1072#define VIDIOC_TRY_FMT _IOWR ('V', 64, struct v4l2_format)
1073#define VIDIOC_ENUMAUDIO _IOWR ('V', 65, struct v4l2_audio)
1074#define VIDIOC_ENUMAUDOUT _IOWR ('V', 66, struct v4l2_audioout)
1075#define VIDIOC_G_PRIORITY _IOR ('V', 67, enum v4l2_priority)
1076#define VIDIOC_S_PRIORITY _IOW ('V', 68, enum v4l2_priority)
1077#if 1
1078#define VIDIOC_G_SLICED_VBI_CAP _IOR ('V', 69, struct v4l2_sliced_vbi_cap)
1079#endif
1080#define VIDIOC_LOG_STATUS _IO ('V', 70)
1081
1082/* for compatibility, will go away some day */
1083#define VIDIOC_OVERLAY_OLD _IOWR ('V', 14, int)
1084#define VIDIOC_S_PARM_OLD _IOW ('V', 22, struct v4l2_streamparm)
1085#define VIDIOC_S_CTRL_OLD _IOW ('V', 28, struct v4l2_control)
1086#define VIDIOC_G_AUDIO_OLD _IOWR ('V', 33, struct v4l2_audio)
1087#define VIDIOC_G_AUDOUT_OLD _IOWR ('V', 49, struct v4l2_audioout)
1088#define VIDIOC_CROPCAP_OLD _IOR ('V', 58, struct v4l2_cropcap)
1089
1090#define BASE_VIDIOC_PRIVATE 192 /* 192-255 are private */
1091
1092
1093#ifdef __KERNEL__
1094/*
1095 *
1096 * V 4 L 2 D R I V E R H E L P E R A P I
1097 *
1098 * Some commonly needed functions for drivers (v4l2-common.o module)
1099 */
1100#include <linux/fs.h>
1101
1102/* Video standard functions */
1103extern unsigned int v4l2_video_std_fps(struct v4l2_standard *vs);
1104extern int v4l2_video_std_construct(struct v4l2_standard *vs,
1105 int id, char *name);
1106
1107/* prority handling */
1108struct v4l2_prio_state {
1109 atomic_t prios[4];
1110};
1111int v4l2_prio_init(struct v4l2_prio_state *global);
1112int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local,
1113 enum v4l2_priority new);
1114int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local);
1115int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local);
1116enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global);
1117int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local);
1118
1119/* names for fancy debug output */
1120extern char *v4l2_field_names[];
1121extern char *v4l2_type_names[];
1122
1123/* Compatibility layer interface -- v4l1-compat module */
1124typedef int (*v4l2_kioctl)(struct inode *inode, struct file *file,
1125 unsigned int cmd, void *arg);
1126int v4l_compat_translate_ioctl(struct inode *inode, struct file *file,
1127 int cmd, void *arg, v4l2_kioctl driver_ioctl);
1128
1129/* 32 Bits compatibility layer for 64 bits processors */
1130extern long v4l_compat_ioctl32(struct file *file, unsigned int cmd,
1131 unsigned long arg);
1132
1133
1134#endif /* __KERNEL__ */
1135#endif /* __LINUX_VIDEODEV2_H */
1136
1137/*
1138 * Local variables:
1139 * c-basic-offset: 8
1140 * End:
1141 */