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[PATCH] v4l: 826: unify whitespaces
[deliverable/linux.git] / include / linux / videodev2.h
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 #endif
19 #include <linux/compiler.h> /* need __user */
20
21 #include <linux/poll.h>
22 #include <linux/device.h>
23
24 #define HAVE_V4L2 1
25
26 /*
27 * Common stuff for both V4L1 and V4L2
28 * Moved from videodev.h
29 */
30
31 #define VIDEO_MAX_FRAME 32
32
33 #define VFL_TYPE_GRABBER 0
34 #define VFL_TYPE_VBI 1
35 #define VFL_TYPE_RADIO 2
36 #define VFL_TYPE_VTX 3
37
38 struct video_device
39 {
40 /* device info */
41 struct device *dev;
42 char name[32];
43 int type; /* v4l1 */
44 int type2; /* v4l2 */
45 int hardware;
46 int minor;
47
48 /* device ops + callbacks */
49 struct file_operations *fops;
50 void (*release)(struct video_device *vfd);
51
52
53
54 /* for videodev.c intenal usage -- please don't touch */
55 int users; /* video_exclusive_{open|close} ... */
56 struct semaphore lock; /* ... helper function uses these */
57 char devfs_name[64]; /* devfs */
58 struct class_device class_dev; /* sysfs */
59 };
60
61 #define VIDEO_MAJOR 81
62
63 #define VID_TYPE_CAPTURE 1 /* Can capture */
64 #define VID_TYPE_TUNER 2 /* Can tune */
65 #define VID_TYPE_TELETEXT 4 /* Does teletext */
66 #define VID_TYPE_OVERLAY 8 /* Overlay onto frame buffer */
67 #define VID_TYPE_CHROMAKEY 16 /* Overlay by chromakey */
68 #define VID_TYPE_CLIPPING 32 /* Can clip */
69 #define VID_TYPE_FRAMERAM 64 /* Uses the frame buffer memory */
70 #define VID_TYPE_SCALES 128 /* Scalable */
71 #define VID_TYPE_MONOCHROME 256 /* Monochrome only */
72 #define VID_TYPE_SUBCAPTURE 512 /* Can capture subareas of the image */
73 #define VID_TYPE_MPEG_DECODER 1024 /* Can decode MPEG streams */
74 #define VID_TYPE_MPEG_ENCODER 2048 /* Can encode MPEG streams */
75 #define VID_TYPE_MJPEG_DECODER 4096 /* Can decode MJPEG streams */
76 #define VID_TYPE_MJPEG_ENCODER 8192 /* Can encode MJPEG streams */
77
78 extern int video_register_device(struct video_device *, int type, int nr);
79 extern void video_unregister_device(struct video_device *);
80 extern int video_usercopy(struct inode *inode, struct file *file,
81 unsigned int cmd, unsigned long arg,
82 int (*func)(struct inode *inode, struct file *file,
83 unsigned int cmd, void *arg));
84
85 /* helper functions to alloc / release struct video_device, the
86 later can be used for video_device->release() */
87 struct video_device *video_device_alloc(void);
88 void video_device_release(struct video_device *vfd);
89
90 /*
91 * M I S C E L L A N E O U S
92 */
93
94 /* Four-character-code (FOURCC) */
95 #define v4l2_fourcc(a,b,c,d)\
96 (((__u32)(a)<<0)|((__u32)(b)<<8)|((__u32)(c)<<16)|((__u32)(d)<<24))
97
98 /*
99 * E N U M S
100 */
101 enum v4l2_field {
102 V4L2_FIELD_ANY = 0, /* driver can choose from none,
103 top, bottom, interlaced
104 depending on whatever it thinks
105 is approximate ... */
106 V4L2_FIELD_NONE = 1, /* this device has no fields ... */
107 V4L2_FIELD_TOP = 2, /* top field only */
108 V4L2_FIELD_BOTTOM = 3, /* bottom field only */
109 V4L2_FIELD_INTERLACED = 4, /* both fields interlaced */
110 V4L2_FIELD_SEQ_TB = 5, /* both fields sequential into one
111 buffer, top-bottom order */
112 V4L2_FIELD_SEQ_BT = 6, /* same as above + bottom-top order */
113 V4L2_FIELD_ALTERNATE = 7, /* both fields alternating into
114 separate buffers */
115 };
116 #define V4L2_FIELD_HAS_TOP(field) \
117 ((field) == V4L2_FIELD_TOP ||\
118 (field) == V4L2_FIELD_INTERLACED ||\
119 (field) == V4L2_FIELD_SEQ_TB ||\
120 (field) == V4L2_FIELD_SEQ_BT)
121 #define V4L2_FIELD_HAS_BOTTOM(field) \
122 ((field) == V4L2_FIELD_BOTTOM ||\
123 (field) == V4L2_FIELD_INTERLACED ||\
124 (field) == V4L2_FIELD_SEQ_TB ||\
125 (field) == V4L2_FIELD_SEQ_BT)
126 #define V4L2_FIELD_HAS_BOTH(field) \
127 ((field) == V4L2_FIELD_INTERLACED ||\
128 (field) == V4L2_FIELD_SEQ_TB ||\
129 (field) == V4L2_FIELD_SEQ_BT)
130
131 enum v4l2_buf_type {
132 V4L2_BUF_TYPE_VIDEO_CAPTURE = 1,
133 V4L2_BUF_TYPE_VIDEO_OUTPUT = 2,
134 V4L2_BUF_TYPE_VIDEO_OVERLAY = 3,
135 V4L2_BUF_TYPE_VBI_CAPTURE = 4,
136 V4L2_BUF_TYPE_VBI_OUTPUT = 5,
137 #if 1
138 /* Experimental Sliced VBI */
139 V4L2_BUF_TYPE_SLICED_VBI_CAPTURE = 6,
140 V4L2_BUF_TYPE_SLICED_VBI_OUTPUT = 7,
141 #endif
142 V4L2_BUF_TYPE_PRIVATE = 0x80,
143 };
144
145 enum v4l2_ctrl_type {
146 V4L2_CTRL_TYPE_INTEGER = 1,
147 V4L2_CTRL_TYPE_BOOLEAN = 2,
148 V4L2_CTRL_TYPE_MENU = 3,
149 V4L2_CTRL_TYPE_BUTTON = 4,
150 };
151
152 enum v4l2_tuner_type {
153 V4L2_TUNER_RADIO = 1,
154 V4L2_TUNER_ANALOG_TV = 2,
155 V4L2_TUNER_DIGITAL_TV = 3,
156 };
157
158 enum v4l2_memory {
159 V4L2_MEMORY_MMAP = 1,
160 V4L2_MEMORY_USERPTR = 2,
161 V4L2_MEMORY_OVERLAY = 3,
162 };
163
164 /* see also http://vektor.theorem.ca/graphics/ycbcr/ */
165 enum v4l2_colorspace {
166 /* ITU-R 601 -- broadcast NTSC/PAL */
167 V4L2_COLORSPACE_SMPTE170M = 1,
168
169 /* 1125-Line (US) HDTV */
170 V4L2_COLORSPACE_SMPTE240M = 2,
171
172 /* HD and modern captures. */
173 V4L2_COLORSPACE_REC709 = 3,
174
175 /* broken BT878 extents (601, luma range 16-253 instead of 16-235) */
176 V4L2_COLORSPACE_BT878 = 4,
177
178 /* These should be useful. Assume 601 extents. */
179 V4L2_COLORSPACE_470_SYSTEM_M = 5,
180 V4L2_COLORSPACE_470_SYSTEM_BG = 6,
181
182 /* I know there will be cameras that send this. So, this is
183 * unspecified chromaticities and full 0-255 on each of the
184 * Y'CbCr components
185 */
186 V4L2_COLORSPACE_JPEG = 7,
187
188 /* For RGB colourspaces, this is probably a good start. */
189 V4L2_COLORSPACE_SRGB = 8,
190 };
191
192 enum v4l2_priority {
193 V4L2_PRIORITY_UNSET = 0, /* not initialized */
194 V4L2_PRIORITY_BACKGROUND = 1,
195 V4L2_PRIORITY_INTERACTIVE = 2,
196 V4L2_PRIORITY_RECORD = 3,
197 V4L2_PRIORITY_DEFAULT = V4L2_PRIORITY_INTERACTIVE,
198 };
199
200 struct v4l2_rect {
201 __s32 left;
202 __s32 top;
203 __s32 width;
204 __s32 height;
205 };
206
207 struct v4l2_fract {
208 __u32 numerator;
209 __u32 denominator;
210 };
211
212 /*
213 * D R I V E R C A P A B I L I T I E S
214 */
215 struct v4l2_capability
216 {
217 __u8 driver[16]; /* i.e. "bttv" */
218 __u8 card[32]; /* i.e. "Hauppauge WinTV" */
219 __u8 bus_info[32]; /* "PCI:" + pci_name(pci_dev) */
220 __u32 version; /* should use KERNEL_VERSION() */
221 __u32 capabilities; /* Device capabilities */
222 __u32 reserved[4];
223 };
224
225 /* Values for 'capabilities' field */
226 #define V4L2_CAP_VIDEO_CAPTURE 0x00000001 /* Is a video capture device */
227 #define V4L2_CAP_VIDEO_OUTPUT 0x00000002 /* Is a video output device */
228 #define V4L2_CAP_VIDEO_OVERLAY 0x00000004 /* Can do video overlay */
229 #define V4L2_CAP_VBI_CAPTURE 0x00000010 /* Is a raw VBI capture device */
230 #define V4L2_CAP_VBI_OUTPUT 0x00000020 /* Is a raw VBI output device */
231 #if 1
232 #define V4L2_CAP_SLICED_VBI_CAPTURE 0x00000040 /* Is a sliced VBI capture device */
233 #define V4L2_CAP_SLICED_VBI_OUTPUT 0x00000080 /* Is a sliced VBI output device */
234 #endif
235 #define V4L2_CAP_RDS_CAPTURE 0x00000100 /* RDS data capture */
236
237 #define V4L2_CAP_TUNER 0x00010000 /* has a tuner */
238 #define V4L2_CAP_AUDIO 0x00020000 /* has audio support */
239 #define V4L2_CAP_RADIO 0x00040000 /* is a radio device */
240
241 #define V4L2_CAP_READWRITE 0x01000000 /* read/write systemcalls */
242 #define V4L2_CAP_ASYNCIO 0x02000000 /* async I/O */
243 #define V4L2_CAP_STREAMING 0x04000000 /* streaming I/O ioctls */
244
245 /*
246 * V I D E O I M A G E F O R M A T
247 */
248
249 struct v4l2_pix_format
250 {
251 __u32 width;
252 __u32 height;
253 __u32 pixelformat;
254 enum v4l2_field field;
255 __u32 bytesperline; /* for padding, zero if unused */
256 __u32 sizeimage;
257 enum v4l2_colorspace colorspace;
258 __u32 priv; /* private data, depends on pixelformat */
259 };
260
261 /* Pixel format FOURCC depth Description */
262 #define V4L2_PIX_FMT_RGB332 v4l2_fourcc('R','G','B','1') /* 8 RGB-3-3-2 */
263 #define V4L2_PIX_FMT_RGB555 v4l2_fourcc('R','G','B','O') /* 16 RGB-5-5-5 */
264 #define V4L2_PIX_FMT_RGB565 v4l2_fourcc('R','G','B','P') /* 16 RGB-5-6-5 */
265 #define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R','G','B','Q') /* 16 RGB-5-5-5 BE */
266 #define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R','G','B','R') /* 16 RGB-5-6-5 BE */
267 #define V4L2_PIX_FMT_BGR24 v4l2_fourcc('B','G','R','3') /* 24 BGR-8-8-8 */
268 #define V4L2_PIX_FMT_RGB24 v4l2_fourcc('R','G','B','3') /* 24 RGB-8-8-8 */
269 #define V4L2_PIX_FMT_BGR32 v4l2_fourcc('B','G','R','4') /* 32 BGR-8-8-8-8 */
270 #define V4L2_PIX_FMT_RGB32 v4l2_fourcc('R','G','B','4') /* 32 RGB-8-8-8-8 */
271 #define V4L2_PIX_FMT_GREY v4l2_fourcc('G','R','E','Y') /* 8 Greyscale */
272 #define V4L2_PIX_FMT_YVU410 v4l2_fourcc('Y','V','U','9') /* 9 YVU 4:1:0 */
273 #define V4L2_PIX_FMT_YVU420 v4l2_fourcc('Y','V','1','2') /* 12 YVU 4:2:0 */
274 #define V4L2_PIX_FMT_YUYV v4l2_fourcc('Y','U','Y','V') /* 16 YUV 4:2:2 */
275 #define V4L2_PIX_FMT_UYVY v4l2_fourcc('U','Y','V','Y') /* 16 YUV 4:2:2 */
276 #define V4L2_PIX_FMT_YUV422P v4l2_fourcc('4','2','2','P') /* 16 YVU422 planar */
277 #define V4L2_PIX_FMT_YUV411P v4l2_fourcc('4','1','1','P') /* 16 YVU411 planar */
278 #define V4L2_PIX_FMT_Y41P v4l2_fourcc('Y','4','1','P') /* 12 YUV 4:1:1 */
279
280 /* two planes -- one Y, one Cr + Cb interleaved */
281 #define V4L2_PIX_FMT_NV12 v4l2_fourcc('N','V','1','2') /* 12 Y/CbCr 4:2:0 */
282 #define V4L2_PIX_FMT_NV21 v4l2_fourcc('N','V','2','1') /* 12 Y/CrCb 4:2:0 */
283
284 /* The following formats are not defined in the V4L2 specification */
285 #define V4L2_PIX_FMT_YUV410 v4l2_fourcc('Y','U','V','9') /* 9 YUV 4:1:0 */
286 #define V4L2_PIX_FMT_YUV420 v4l2_fourcc('Y','U','1','2') /* 12 YUV 4:2:0 */
287 #define V4L2_PIX_FMT_YYUV v4l2_fourcc('Y','Y','U','V') /* 16 YUV 4:2:2 */
288 #define V4L2_PIX_FMT_HI240 v4l2_fourcc('H','I','2','4') /* 8 8-bit color */
289
290 /* see http://www.siliconimaging.com/RGB%20Bayer.htm */
291 #define V4L2_PIX_FMT_SBGGR8 v4l2_fourcc('B','A','8','1') /* 8 BGBG.. GRGR.. */
292
293 /* compressed formats */
294 #define V4L2_PIX_FMT_MJPEG v4l2_fourcc('M','J','P','G') /* Motion-JPEG */
295 #define V4L2_PIX_FMT_JPEG v4l2_fourcc('J','P','E','G') /* JFIF JPEG */
296 #define V4L2_PIX_FMT_DV v4l2_fourcc('d','v','s','d') /* 1394 */
297 #define V4L2_PIX_FMT_MPEG v4l2_fourcc('M','P','E','G') /* MPEG */
298
299 /* Vendor-specific formats */
300 #define V4L2_PIX_FMT_WNVA v4l2_fourcc('W','N','V','A') /* Winnov hw compress */
301 #define V4L2_PIX_FMT_SN9C10X v4l2_fourcc('S','9','1','0') /* SN9C10x compression */
302 #define V4L2_PIX_FMT_PWC1 v4l2_fourcc('P','W','C','1') /* pwc older webcam */
303 #define V4L2_PIX_FMT_PWC2 v4l2_fourcc('P','W','C','2') /* pwc newer webcam */
304
305 /*
306 * F O R M A T E N U M E R A T I O N
307 */
308 struct v4l2_fmtdesc
309 {
310 __u32 index; /* Format number */
311 enum v4l2_buf_type type; /* buffer type */
312 __u32 flags;
313 __u8 description[32]; /* Description string */
314 __u32 pixelformat; /* Format fourcc */
315 __u32 reserved[4];
316 };
317
318 #define V4L2_FMT_FLAG_COMPRESSED 0x0001
319
320
321 /*
322 * T I M E C O D E
323 */
324 struct v4l2_timecode
325 {
326 __u32 type;
327 __u32 flags;
328 __u8 frames;
329 __u8 seconds;
330 __u8 minutes;
331 __u8 hours;
332 __u8 userbits[4];
333 };
334
335 /* Type */
336 #define V4L2_TC_TYPE_24FPS 1
337 #define V4L2_TC_TYPE_25FPS 2
338 #define V4L2_TC_TYPE_30FPS 3
339 #define V4L2_TC_TYPE_50FPS 4
340 #define V4L2_TC_TYPE_60FPS 5
341
342 /* Flags */
343 #define V4L2_TC_FLAG_DROPFRAME 0x0001 /* "drop-frame" mode */
344 #define V4L2_TC_FLAG_COLORFRAME 0x0002
345 #define V4L2_TC_USERBITS_field 0x000C
346 #define V4L2_TC_USERBITS_USERDEFINED 0x0000
347 #define V4L2_TC_USERBITS_8BITCHARS 0x0008
348 /* The above is based on SMPTE timecodes */
349
350
351 /*
352 * 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
353 *
354 * ### WARNING: this is still work-in-progress right now, most likely
355 * ### there will be some incompatible changes.
356 *
357 */
358
359
360 enum v4l2_bitrate_mode {
361 V4L2_BITRATE_NONE = 0, /* not specified */
362 V4L2_BITRATE_CBR, /* constant bitrate */
363 V4L2_BITRATE_VBR, /* variable bitrate */
364 };
365 struct v4l2_bitrate {
366 /* rates are specified in kbit/sec */
367 enum v4l2_bitrate_mode mode;
368 __u32 min;
369 __u32 target; /* use this one for CBR */
370 __u32 max;
371 };
372
373 enum v4l2_mpeg_streamtype {
374 V4L2_MPEG_SS_1, /* MPEG-1 system stream */
375 V4L2_MPEG_PS_2, /* MPEG-2 program stream */
376 V4L2_MPEG_TS_2, /* MPEG-2 transport stream */
377 V4L2_MPEG_PS_DVD, /* MPEG-2 program stream with DVD header fixups */
378 };
379 enum v4l2_mpeg_audiotype {
380 V4L2_MPEG_AU_2_I, /* MPEG-2 layer 1 */
381 V4L2_MPEG_AU_2_II, /* MPEG-2 layer 2 */
382 V4L2_MPEG_AU_2_III, /* MPEG-2 layer 3 */
383 V4L2_MPEG_AC3, /* AC3 */
384 V4L2_MPEG_LPCM, /* LPCM */
385 };
386 enum v4l2_mpeg_videotype {
387 V4L2_MPEG_VI_1, /* MPEG-1 */
388 V4L2_MPEG_VI_2, /* MPEG-2 */
389 };
390 enum v4l2_mpeg_aspectratio {
391 V4L2_MPEG_ASPECT_SQUARE = 1, /* square pixel */
392 V4L2_MPEG_ASPECT_4_3 = 2, /* 4 : 3 */
393 V4L2_MPEG_ASPECT_16_9 = 3, /* 16 : 9 */
394 V4L2_MPEG_ASPECT_1_221 = 4, /* 1 : 2,21 */
395 };
396
397 struct v4l2_mpeg_compression {
398 /* general */
399 enum v4l2_mpeg_streamtype st_type;
400 struct v4l2_bitrate st_bitrate;
401
402 /* transport streams */
403 __u16 ts_pid_pmt;
404 __u16 ts_pid_audio;
405 __u16 ts_pid_video;
406 __u16 ts_pid_pcr;
407
408 /* program stream */
409 __u16 ps_size;
410 __u16 reserved_1; /* align */
411
412 /* audio */
413 enum v4l2_mpeg_audiotype au_type;
414 struct v4l2_bitrate au_bitrate;
415 __u32 au_sample_rate;
416 __u8 au_pesid;
417 __u8 reserved_2[3]; /* align */
418
419 /* video */
420 enum v4l2_mpeg_videotype vi_type;
421 enum v4l2_mpeg_aspectratio vi_aspect_ratio;
422 struct v4l2_bitrate vi_bitrate;
423 __u32 vi_frame_rate;
424 __u16 vi_frames_per_gop;
425 __u16 vi_bframes_count;
426 __u8 vi_pesid;
427 __u8 reserved_3[3]; /* align */
428
429 /* misc flags */
430 __u32 closed_gops:1;
431 __u32 pulldown:1;
432 __u32 reserved_4:30; /* align */
433
434 /* I don't expect the above being perfect yet ;) */
435 __u32 reserved_5[8];
436 };
437
438 struct v4l2_jpegcompression
439 {
440 int quality;
441
442 int APPn; /* Number of APP segment to be written,
443 * must be 0..15 */
444 int APP_len; /* Length of data in JPEG APPn segment */
445 char APP_data[60]; /* Data in the JPEG APPn segment. */
446
447 int COM_len; /* Length of data in JPEG COM segment */
448 char COM_data[60]; /* Data in JPEG COM segment */
449
450 __u32 jpeg_markers; /* Which markers should go into the JPEG
451 * output. Unless you exactly know what
452 * you do, leave them untouched.
453 * Inluding less markers will make the
454 * resulting code smaller, but there will
455 * be fewer aplications which can read it.
456 * The presence of the APP and COM marker
457 * is influenced by APP_len and COM_len
458 * ONLY, not by this property! */
459
460 #define V4L2_JPEG_MARKER_DHT (1<<3) /* Define Huffman Tables */
461 #define V4L2_JPEG_MARKER_DQT (1<<4) /* Define Quantization Tables */
462 #define V4L2_JPEG_MARKER_DRI (1<<5) /* Define Restart Interval */
463 #define V4L2_JPEG_MARKER_COM (1<<6) /* Comment segment */
464 #define V4L2_JPEG_MARKER_APP (1<<7) /* App segment, driver will
465 * allways use APP0 */
466 };
467
468
469 /*
470 * M E M O R Y - M A P P I N G B U F F E R S
471 */
472 struct v4l2_requestbuffers
473 {
474 __u32 count;
475 enum v4l2_buf_type type;
476 enum v4l2_memory memory;
477 __u32 reserved[2];
478 };
479
480 struct v4l2_buffer
481 {
482 __u32 index;
483 enum v4l2_buf_type type;
484 __u32 bytesused;
485 __u32 flags;
486 enum v4l2_field field;
487 struct timeval timestamp;
488 struct v4l2_timecode timecode;
489 __u32 sequence;
490
491 /* memory location */
492 enum v4l2_memory memory;
493 union {
494 __u32 offset;
495 unsigned long userptr;
496 } m;
497 __u32 length;
498 __u32 input;
499 __u32 reserved;
500 };
501
502 /* Flags for 'flags' field */
503 #define V4L2_BUF_FLAG_MAPPED 0x0001 /* Buffer is mapped (flag) */
504 #define V4L2_BUF_FLAG_QUEUED 0x0002 /* Buffer is queued for processing */
505 #define V4L2_BUF_FLAG_DONE 0x0004 /* Buffer is ready */
506 #define V4L2_BUF_FLAG_KEYFRAME 0x0008 /* Image is a keyframe (I-frame) */
507 #define V4L2_BUF_FLAG_PFRAME 0x0010 /* Image is a P-frame */
508 #define V4L2_BUF_FLAG_BFRAME 0x0020 /* Image is a B-frame */
509 #define V4L2_BUF_FLAG_TIMECODE 0x0100 /* timecode field is valid */
510 #define V4L2_BUF_FLAG_INPUT 0x0200 /* input field is valid */
511
512 /*
513 * O V E R L A Y P R E V I E W
514 */
515 struct v4l2_framebuffer
516 {
517 __u32 capability;
518 __u32 flags;
519 /* FIXME: in theory we should pass something like PCI device + memory
520 * region + offset instead of some physical address */
521 void* base;
522 struct v4l2_pix_format fmt;
523 };
524 /* Flags for the 'capability' field. Read only */
525 #define V4L2_FBUF_CAP_EXTERNOVERLAY 0x0001
526 #define V4L2_FBUF_CAP_CHROMAKEY 0x0002
527 #define V4L2_FBUF_CAP_LIST_CLIPPING 0x0004
528 #define V4L2_FBUF_CAP_BITMAP_CLIPPING 0x0008
529 /* Flags for the 'flags' field. */
530 #define V4L2_FBUF_FLAG_PRIMARY 0x0001
531 #define V4L2_FBUF_FLAG_OVERLAY 0x0002
532 #define V4L2_FBUF_FLAG_CHROMAKEY 0x0004
533
534 struct v4l2_clip
535 {
536 struct v4l2_rect c;
537 struct v4l2_clip *next;
538 };
539
540 struct v4l2_window
541 {
542 struct v4l2_rect w;
543 enum v4l2_field field;
544 __u32 chromakey;
545 struct v4l2_clip __user *clips;
546 __u32 clipcount;
547 void __user *bitmap;
548 };
549
550
551 /*
552 * C A P T U R E P A R A M E T E R S
553 */
554 struct v4l2_captureparm
555 {
556 __u32 capability; /* Supported modes */
557 __u32 capturemode; /* Current mode */
558 struct v4l2_fract timeperframe; /* Time per frame in .1us units */
559 __u32 extendedmode; /* Driver-specific extensions */
560 __u32 readbuffers; /* # of buffers for read */
561 __u32 reserved[4];
562 };
563 /* Flags for 'capability' and 'capturemode' fields */
564 #define V4L2_MODE_HIGHQUALITY 0x0001 /* High quality imaging mode */
565 #define V4L2_CAP_TIMEPERFRAME 0x1000 /* timeperframe field is supported */
566
567 struct v4l2_outputparm
568 {
569 __u32 capability; /* Supported modes */
570 __u32 outputmode; /* Current mode */
571 struct v4l2_fract timeperframe; /* Time per frame in seconds */
572 __u32 extendedmode; /* Driver-specific extensions */
573 __u32 writebuffers; /* # of buffers for write */
574 __u32 reserved[4];
575 };
576
577 /*
578 * I N P U T I M A G E C R O P P I N G
579 */
580
581 struct v4l2_cropcap {
582 enum v4l2_buf_type type;
583 struct v4l2_rect bounds;
584 struct v4l2_rect defrect;
585 struct v4l2_fract pixelaspect;
586 };
587
588 struct v4l2_crop {
589 enum v4l2_buf_type type;
590 struct v4l2_rect c;
591 };
592
593 /*
594 * A N A L O G V I D E O S T A N D A R D
595 */
596
597 typedef __u64 v4l2_std_id;
598
599 /* one bit for each */
600 #define V4L2_STD_PAL_B ((v4l2_std_id)0x00000001)
601 #define V4L2_STD_PAL_B1 ((v4l2_std_id)0x00000002)
602 #define V4L2_STD_PAL_G ((v4l2_std_id)0x00000004)
603 #define V4L2_STD_PAL_H ((v4l2_std_id)0x00000008)
604 #define V4L2_STD_PAL_I ((v4l2_std_id)0x00000010)
605 #define V4L2_STD_PAL_D ((v4l2_std_id)0x00000020)
606 #define V4L2_STD_PAL_D1 ((v4l2_std_id)0x00000040)
607 #define V4L2_STD_PAL_K ((v4l2_std_id)0x00000080)
608
609 #define V4L2_STD_PAL_M ((v4l2_std_id)0x00000100)
610 #define V4L2_STD_PAL_N ((v4l2_std_id)0x00000200)
611 #define V4L2_STD_PAL_Nc ((v4l2_std_id)0x00000400)
612 #define V4L2_STD_PAL_60 ((v4l2_std_id)0x00000800)
613
614 #define V4L2_STD_NTSC_M ((v4l2_std_id)0x00001000)
615 #define V4L2_STD_NTSC_M_JP ((v4l2_std_id)0x00002000)
616
617 #define V4L2_STD_SECAM_B ((v4l2_std_id)0x00010000)
618 #define V4L2_STD_SECAM_D ((v4l2_std_id)0x00020000)
619 #define V4L2_STD_SECAM_G ((v4l2_std_id)0x00040000)
620 #define V4L2_STD_SECAM_H ((v4l2_std_id)0x00080000)
621 #define V4L2_STD_SECAM_K ((v4l2_std_id)0x00100000)
622 #define V4L2_STD_SECAM_K1 ((v4l2_std_id)0x00200000)
623 #define V4L2_STD_SECAM_L ((v4l2_std_id)0x00400000)
624
625 /* ATSC/HDTV */
626 #define V4L2_STD_ATSC_8_VSB ((v4l2_std_id)0x01000000)
627 #define V4L2_STD_ATSC_16_VSB ((v4l2_std_id)0x02000000)
628
629 /* some common needed stuff */
630 #define V4L2_STD_PAL_BG (V4L2_STD_PAL_B |\
631 V4L2_STD_PAL_B1 |\
632 V4L2_STD_PAL_G)
633 #define V4L2_STD_PAL_DK (V4L2_STD_PAL_D |\
634 V4L2_STD_PAL_D1 |\
635 V4L2_STD_PAL_K)
636 #define V4L2_STD_PAL (V4L2_STD_PAL_BG |\
637 V4L2_STD_PAL_DK |\
638 V4L2_STD_PAL_H |\
639 V4L2_STD_PAL_I)
640 #define V4L2_STD_NTSC (V4L2_STD_NTSC_M |\
641 V4L2_STD_NTSC_M_JP)
642 #define V4L2_STD_SECAM_DK (V4L2_STD_SECAM_D |\
643 V4L2_STD_SECAM_K |\
644 V4L2_STD_SECAM_K1)
645 #define V4L2_STD_SECAM (V4L2_STD_SECAM_B |\
646 V4L2_STD_SECAM_G |\
647 V4L2_STD_SECAM_H |\
648 V4L2_STD_SECAM_DK |\
649 V4L2_STD_SECAM_L)
650
651 #define V4L2_STD_525_60 (V4L2_STD_PAL_M |\
652 V4L2_STD_PAL_60 |\
653 V4L2_STD_NTSC)
654 #define V4L2_STD_625_50 (V4L2_STD_PAL |\
655 V4L2_STD_PAL_N |\
656 V4L2_STD_PAL_Nc |\
657 V4L2_STD_SECAM)
658 #define V4L2_STD_ATSC (V4L2_STD_ATSC_8_VSB |\
659 V4L2_STD_ATSC_16_VSB)
660
661 #define V4L2_STD_UNKNOWN 0
662 #define V4L2_STD_ALL (V4L2_STD_525_60 |\
663 V4L2_STD_625_50)
664
665 struct v4l2_standard
666 {
667 __u32 index;
668 v4l2_std_id id;
669 __u8 name[24];
670 struct v4l2_fract frameperiod; /* Frames, not fields */
671 __u32 framelines;
672 __u32 reserved[4];
673 };
674
675
676 /*
677 * V I D E O I N P U T S
678 */
679 struct v4l2_input
680 {
681 __u32 index; /* Which input */
682 __u8 name[32]; /* Label */
683 __u32 type; /* Type of input */
684 __u32 audioset; /* Associated audios (bitfield) */
685 __u32 tuner; /* Associated tuner */
686 v4l2_std_id std;
687 __u32 status;
688 __u32 reserved[4];
689 };
690 /* Values for the 'type' field */
691 #define V4L2_INPUT_TYPE_TUNER 1
692 #define V4L2_INPUT_TYPE_CAMERA 2
693
694 /* field 'status' - general */
695 #define V4L2_IN_ST_NO_POWER 0x00000001 /* Attached device is off */
696 #define V4L2_IN_ST_NO_SIGNAL 0x00000002
697 #define V4L2_IN_ST_NO_COLOR 0x00000004
698
699 /* field 'status' - analog */
700 #define V4L2_IN_ST_NO_H_LOCK 0x00000100 /* No horizontal sync lock */
701 #define V4L2_IN_ST_COLOR_KILL 0x00000200 /* Color killer is active */
702
703 /* field 'status' - digital */
704 #define V4L2_IN_ST_NO_SYNC 0x00010000 /* No synchronization lock */
705 #define V4L2_IN_ST_NO_EQU 0x00020000 /* No equalizer lock */
706 #define V4L2_IN_ST_NO_CARRIER 0x00040000 /* Carrier recovery failed */
707
708 /* field 'status' - VCR and set-top box */
709 #define V4L2_IN_ST_MACROVISION 0x01000000 /* Macrovision detected */
710 #define V4L2_IN_ST_NO_ACCESS 0x02000000 /* Conditional access denied */
711 #define V4L2_IN_ST_VTR 0x04000000 /* VTR time constant */
712
713 /*
714 * V I D E O O U T P U T S
715 */
716 struct v4l2_output
717 {
718 __u32 index; /* Which output */
719 __u8 name[32]; /* Label */
720 __u32 type; /* Type of output */
721 __u32 audioset; /* Associated audios (bitfield) */
722 __u32 modulator; /* Associated modulator */
723 v4l2_std_id std;
724 __u32 reserved[4];
725 };
726 /* Values for the 'type' field */
727 #define V4L2_OUTPUT_TYPE_MODULATOR 1
728 #define V4L2_OUTPUT_TYPE_ANALOG 2
729 #define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY 3
730
731 /*
732 * C O N T R O L S
733 */
734 struct v4l2_control
735 {
736 __u32 id;
737 __s32 value;
738 };
739
740 /* Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
741 struct v4l2_queryctrl
742 {
743 __u32 id;
744 enum v4l2_ctrl_type type;
745 __u8 name[32]; /* Whatever */
746 __s32 minimum; /* Note signedness */
747 __s32 maximum;
748 __s32 step;
749 __s32 default_value;
750 __u32 flags;
751 __u32 reserved[2];
752 };
753
754 /* Used in the VIDIOC_QUERYMENU ioctl for querying menu items */
755 struct v4l2_querymenu
756 {
757 __u32 id;
758 __u32 index;
759 __u8 name[32]; /* Whatever */
760 __u32 reserved;
761 };
762
763 /* Control flags */
764 #define V4L2_CTRL_FLAG_DISABLED 0x0001
765 #define V4L2_CTRL_FLAG_GRABBED 0x0002
766
767 /* Control IDs defined by V4L2 */
768 #define V4L2_CID_BASE 0x00980900
769 /* IDs reserved for driver specific controls */
770 #define V4L2_CID_PRIVATE_BASE 0x08000000
771
772 #define V4L2_CID_BRIGHTNESS (V4L2_CID_BASE+0)
773 #define V4L2_CID_CONTRAST (V4L2_CID_BASE+1)
774 #define V4L2_CID_SATURATION (V4L2_CID_BASE+2)
775 #define V4L2_CID_HUE (V4L2_CID_BASE+3)
776 #define V4L2_CID_AUDIO_VOLUME (V4L2_CID_BASE+5)
777 #define V4L2_CID_AUDIO_BALANCE (V4L2_CID_BASE+6)
778 #define V4L2_CID_AUDIO_BASS (V4L2_CID_BASE+7)
779 #define V4L2_CID_AUDIO_TREBLE (V4L2_CID_BASE+8)
780 #define V4L2_CID_AUDIO_MUTE (V4L2_CID_BASE+9)
781 #define V4L2_CID_AUDIO_LOUDNESS (V4L2_CID_BASE+10)
782 #define V4L2_CID_BLACK_LEVEL (V4L2_CID_BASE+11)
783 #define V4L2_CID_AUTO_WHITE_BALANCE (V4L2_CID_BASE+12)
784 #define V4L2_CID_DO_WHITE_BALANCE (V4L2_CID_BASE+13)
785 #define V4L2_CID_RED_BALANCE (V4L2_CID_BASE+14)
786 #define V4L2_CID_BLUE_BALANCE (V4L2_CID_BASE+15)
787 #define V4L2_CID_GAMMA (V4L2_CID_BASE+16)
788 #define V4L2_CID_WHITENESS (V4L2_CID_GAMMA) /* ? Not sure */
789 #define V4L2_CID_EXPOSURE (V4L2_CID_BASE+17)
790 #define V4L2_CID_AUTOGAIN (V4L2_CID_BASE+18)
791 #define V4L2_CID_GAIN (V4L2_CID_BASE+19)
792 #define V4L2_CID_HFLIP (V4L2_CID_BASE+20)
793 #define V4L2_CID_VFLIP (V4L2_CID_BASE+21)
794 #define V4L2_CID_HCENTER (V4L2_CID_BASE+22)
795 #define V4L2_CID_VCENTER (V4L2_CID_BASE+23)
796 #define V4L2_CID_LASTP1 (V4L2_CID_BASE+24) /* last CID + 1 */
797
798 /*
799 * T U N I N G
800 */
801 struct v4l2_tuner
802 {
803 __u32 index;
804 __u8 name[32];
805 enum v4l2_tuner_type type;
806 __u32 capability;
807 __u32 rangelow;
808 __u32 rangehigh;
809 __u32 rxsubchans;
810 __u32 audmode;
811 __s32 signal;
812 __s32 afc;
813 __u32 reserved[4];
814 };
815
816 struct v4l2_modulator
817 {
818 __u32 index;
819 __u8 name[32];
820 __u32 capability;
821 __u32 rangelow;
822 __u32 rangehigh;
823 __u32 txsubchans;
824 __u32 reserved[4];
825 };
826
827 /* Flags for the 'capability' field */
828 #define V4L2_TUNER_CAP_LOW 0x0001
829 #define V4L2_TUNER_CAP_NORM 0x0002
830 #define V4L2_TUNER_CAP_STEREO 0x0010
831 #define V4L2_TUNER_CAP_LANG2 0x0020
832 #define V4L2_TUNER_CAP_SAP 0x0020
833 #define V4L2_TUNER_CAP_LANG1 0x0040
834
835 /* Flags for the 'rxsubchans' field */
836 #define V4L2_TUNER_SUB_MONO 0x0001
837 #define V4L2_TUNER_SUB_STEREO 0x0002
838 #define V4L2_TUNER_SUB_LANG2 0x0004
839 #define V4L2_TUNER_SUB_SAP 0x0004
840 #define V4L2_TUNER_SUB_LANG1 0x0008
841
842 /* Values for the 'audmode' field */
843 #define V4L2_TUNER_MODE_MONO 0x0000
844 #define V4L2_TUNER_MODE_STEREO 0x0001
845 #define V4L2_TUNER_MODE_LANG2 0x0002
846 #define V4L2_TUNER_MODE_SAP 0x0002
847 #define V4L2_TUNER_MODE_LANG1 0x0003
848
849 struct v4l2_frequency
850 {
851 __u32 tuner;
852 enum v4l2_tuner_type type;
853 __u32 frequency;
854 __u32 reserved[8];
855 };
856
857 /*
858 * A U D I O
859 */
860 struct v4l2_audio
861 {
862 __u32 index;
863 __u8 name[32];
864 __u32 capability;
865 __u32 mode;
866 __u32 reserved[2];
867 };
868 /* Flags for the 'capability' field */
869 #define V4L2_AUDCAP_STEREO 0x00001
870 #define V4L2_AUDCAP_AVL 0x00002
871
872 /* Flags for the 'mode' field */
873 #define V4L2_AUDMODE_AVL 0x00001
874
875 struct v4l2_audioout
876 {
877 __u32 index;
878 __u8 name[32];
879 __u32 capability;
880 __u32 mode;
881 __u32 reserved[2];
882 };
883
884 /*
885 * D A T A S E R V I C E S ( V B I )
886 *
887 * Data services API by Michael Schimek
888 */
889
890 /* Raw VBI */
891
892 struct v4l2_vbi_format
893 {
894 __u32 sampling_rate; /* in 1 Hz */
895 __u32 offset;
896 __u32 samples_per_line;
897 __u32 sample_format; /* V4L2_PIX_FMT_* */
898 __s32 start[2];
899 __u32 count[2];
900 __u32 flags; /* V4L2_VBI_* */
901 __u32 reserved[2]; /* must be zero */
902 };
903
904 /* VBI flags */
905 #define V4L2_VBI_UNSYNC (1<< 0)
906 #define V4L2_VBI_INTERLACED (1<< 1)
907
908 #if 1
909 /* Sliced VBI
910 *
911 * This implements is a proposal V4L2 API to allow SLICED VBI
912 * required for some hardware encoders. It should change without
913 * notice in the definitive implementation.
914 */
915
916 struct v4l2_sliced_vbi_format
917 {
918 __u16 service_set;
919 /* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
920 service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
921 (equals frame lines 313-336 for 625 line video
922 standards, 263-286 for 525 line standards) */
923 __u16 service_lines[2][24];
924 __u32 io_size;
925 __u32 reserved[2]; /* must be zero */
926 };
927
928 #define V4L2_SLICED_TELETEXT_B (0x0001)
929 #define V4L2_SLICED_VPS (0x0400)
930 #define V4L2_SLICED_CAPTION_525 (0x1000)
931 #define V4L2_SLICED_WSS_625 (0x4000)
932
933 #define V4L2_SLICED_VBI_525 (V4L2_SLICED_CAPTION_525)
934 #define V4L2_SLICED_VBI_625 (V4L2_SLICED_TELETEXT_B | V4L2_SLICED_VPS | V4L2_SLICED_WSS_625)
935
936 struct v4l2_sliced_vbi_cap
937 {
938 __u16 service_set;
939 /* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
940 service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
941 (equals frame lines 313-336 for 625 line video
942 standards, 263-286 for 525 line standards) */
943 __u16 service_lines[2][24];
944 __u32 reserved[4]; /* must be 0 */
945 };
946
947 struct v4l2_sliced_vbi_data
948 {
949 __u32 id;
950 __u32 field; /* 0: first field, 1: second field */
951 __u32 line; /* 1-23 */
952 __u32 reserved; /* must be 0 */
953 __u8 data[48];
954 };
955 #endif
956
957 /*
958 * A G G R E G A T E S T R U C T U R E S
959 */
960
961 /* Stream data format
962 */
963 struct v4l2_format
964 {
965 enum v4l2_buf_type type;
966 union
967 {
968 struct v4l2_pix_format pix; // V4L2_BUF_TYPE_VIDEO_CAPTURE
969 struct v4l2_window win; // V4L2_BUF_TYPE_VIDEO_OVERLAY
970 struct v4l2_vbi_format vbi; // V4L2_BUF_TYPE_VBI_CAPTURE
971 #if 1
972 struct v4l2_sliced_vbi_format sliced; // V4L2_BUF_TYPE_SLICED_VBI_CAPTURE
973 #endif
974 __u8 raw_data[200]; // user-defined
975 } fmt;
976 };
977
978
979 /* Stream type-dependent parameters
980 */
981 struct v4l2_streamparm
982 {
983 enum v4l2_buf_type type;
984 union
985 {
986 struct v4l2_captureparm capture;
987 struct v4l2_outputparm output;
988 __u8 raw_data[200]; /* user-defined */
989 } parm;
990 };
991
992
993
994 /*
995 * 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
996 *
997 */
998 #define VIDIOC_QUERYCAP _IOR ('V', 0, struct v4l2_capability)
999 #define VIDIOC_RESERVED _IO ('V', 1)
1000 #define VIDIOC_ENUM_FMT _IOWR ('V', 2, struct v4l2_fmtdesc)
1001 #define VIDIOC_G_FMT _IOWR ('V', 4, struct v4l2_format)
1002 #define VIDIOC_S_FMT _IOWR ('V', 5, struct v4l2_format)
1003 #define VIDIOC_G_MPEGCOMP _IOR ('V', 6, struct v4l2_mpeg_compression)
1004 #define VIDIOC_S_MPEGCOMP _IOW ('V', 7, struct v4l2_mpeg_compression)
1005 #define VIDIOC_REQBUFS _IOWR ('V', 8, struct v4l2_requestbuffers)
1006 #define VIDIOC_QUERYBUF _IOWR ('V', 9, struct v4l2_buffer)
1007 #define VIDIOC_G_FBUF _IOR ('V', 10, struct v4l2_framebuffer)
1008 #define VIDIOC_S_FBUF _IOW ('V', 11, struct v4l2_framebuffer)
1009 #define VIDIOC_OVERLAY _IOW ('V', 14, int)
1010 #define VIDIOC_QBUF _IOWR ('V', 15, struct v4l2_buffer)
1011 #define VIDIOC_DQBUF _IOWR ('V', 17, struct v4l2_buffer)
1012 #define VIDIOC_STREAMON _IOW ('V', 18, int)
1013 #define VIDIOC_STREAMOFF _IOW ('V', 19, int)
1014 #define VIDIOC_G_PARM _IOWR ('V', 21, struct v4l2_streamparm)
1015 #define VIDIOC_S_PARM _IOWR ('V', 22, struct v4l2_streamparm)
1016 #define VIDIOC_G_STD _IOR ('V', 23, v4l2_std_id)
1017 #define VIDIOC_S_STD _IOW ('V', 24, v4l2_std_id)
1018 #define VIDIOC_ENUMSTD _IOWR ('V', 25, struct v4l2_standard)
1019 #define VIDIOC_ENUMINPUT _IOWR ('V', 26, struct v4l2_input)
1020 #define VIDIOC_G_CTRL _IOWR ('V', 27, struct v4l2_control)
1021 #define VIDIOC_S_CTRL _IOWR ('V', 28, struct v4l2_control)
1022 #define VIDIOC_G_TUNER _IOWR ('V', 29, struct v4l2_tuner)
1023 #define VIDIOC_S_TUNER _IOW ('V', 30, struct v4l2_tuner)
1024 #define VIDIOC_G_AUDIO _IOR ('V', 33, struct v4l2_audio)
1025 #define VIDIOC_S_AUDIO _IOW ('V', 34, struct v4l2_audio)
1026 #define VIDIOC_QUERYCTRL _IOWR ('V', 36, struct v4l2_queryctrl)
1027 #define VIDIOC_QUERYMENU _IOWR ('V', 37, struct v4l2_querymenu)
1028 #define VIDIOC_G_INPUT _IOR ('V', 38, int)
1029 #define VIDIOC_S_INPUT _IOWR ('V', 39, int)
1030 #define VIDIOC_G_OUTPUT _IOR ('V', 46, int)
1031 #define VIDIOC_S_OUTPUT _IOWR ('V', 47, int)
1032 #define VIDIOC_ENUMOUTPUT _IOWR ('V', 48, struct v4l2_output)
1033 #define VIDIOC_G_AUDOUT _IOR ('V', 49, struct v4l2_audioout)
1034 #define VIDIOC_S_AUDOUT _IOW ('V', 50, struct v4l2_audioout)
1035 #define VIDIOC_G_MODULATOR _IOWR ('V', 54, struct v4l2_modulator)
1036 #define VIDIOC_S_MODULATOR _IOW ('V', 55, struct v4l2_modulator)
1037 #define VIDIOC_G_FREQUENCY _IOWR ('V', 56, struct v4l2_frequency)
1038 #define VIDIOC_S_FREQUENCY _IOW ('V', 57, struct v4l2_frequency)
1039 #define VIDIOC_CROPCAP _IOWR ('V', 58, struct v4l2_cropcap)
1040 #define VIDIOC_G_CROP _IOWR ('V', 59, struct v4l2_crop)
1041 #define VIDIOC_S_CROP _IOW ('V', 60, struct v4l2_crop)
1042 #define VIDIOC_G_JPEGCOMP _IOR ('V', 61, struct v4l2_jpegcompression)
1043 #define VIDIOC_S_JPEGCOMP _IOW ('V', 62, struct v4l2_jpegcompression)
1044 #define VIDIOC_QUERYSTD _IOR ('V', 63, v4l2_std_id)
1045 #define VIDIOC_TRY_FMT _IOWR ('V', 64, struct v4l2_format)
1046 #define VIDIOC_ENUMAUDIO _IOWR ('V', 65, struct v4l2_audio)
1047 #define VIDIOC_ENUMAUDOUT _IOWR ('V', 66, struct v4l2_audioout)
1048 #define VIDIOC_G_PRIORITY _IOR ('V', 67, enum v4l2_priority)
1049 #define VIDIOC_S_PRIORITY _IOW ('V', 68, enum v4l2_priority)
1050 #if 1
1051 #define VIDIOC_G_SLICED_VBI_CAP _IOR ('V', 69, struct v4l2_sliced_vbi_cap)
1052 #endif
1053 #define VIDIOC_LOG_STATUS _IO ('V', 70)
1054
1055 /* for compatibility, will go away some day */
1056 #define VIDIOC_OVERLAY_OLD _IOWR ('V', 14, int)
1057 #define VIDIOC_S_PARM_OLD _IOW ('V', 22, struct v4l2_streamparm)
1058 #define VIDIOC_S_CTRL_OLD _IOW ('V', 28, struct v4l2_control)
1059 #define VIDIOC_G_AUDIO_OLD _IOWR ('V', 33, struct v4l2_audio)
1060 #define VIDIOC_G_AUDOUT_OLD _IOWR ('V', 49, struct v4l2_audioout)
1061 #define VIDIOC_CROPCAP_OLD _IOR ('V', 58, struct v4l2_cropcap)
1062
1063 #define BASE_VIDIOC_PRIVATE 192 /* 192-255 are private */
1064
1065
1066 #ifdef __KERNEL__
1067 /*
1068 *
1069 * V 4 L 2 D R I V E R H E L P E R A P I
1070 *
1071 * Some commonly needed functions for drivers (v4l2-common.o module)
1072 */
1073 #include <linux/fs.h>
1074
1075 /* Video standard functions */
1076 extern unsigned int v4l2_video_std_fps(struct v4l2_standard *vs);
1077 extern int v4l2_video_std_construct(struct v4l2_standard *vs,
1078 int id, char *name);
1079
1080 /* prority handling */
1081 struct v4l2_prio_state {
1082 atomic_t prios[4];
1083 };
1084 int v4l2_prio_init(struct v4l2_prio_state *global);
1085 int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local,
1086 enum v4l2_priority new);
1087 int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local);
1088 int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local);
1089 enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global);
1090 int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local);
1091
1092 /* names for fancy debug output */
1093 extern char *v4l2_field_names[];
1094 extern char *v4l2_type_names[];
1095 extern char *v4l2_ioctl_names[];
1096
1097 /* Compatibility layer interface -- v4l1-compat module */
1098 typedef int (*v4l2_kioctl)(struct inode *inode, struct file *file,
1099 unsigned int cmd, void *arg);
1100 int v4l_compat_translate_ioctl(struct inode *inode, struct file *file,
1101 int cmd, void *arg, v4l2_kioctl driver_ioctl);
1102
1103 #endif /* __KERNEL__ */
1104 #endif /* __LINUX_VIDEODEV2_H */
1105
1106 /*
1107 * Local variables:
1108 * c-basic-offset: 8
1109 * End:
1110 */
Linux kernel - Deliverables
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