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 <[email protected]> 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 56 struct 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 90 extern int video_register_device(struct video_device *, int type, int nr); 91 extern void video_unregister_device(struct video_device *); 92 extern 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() */ 99 struct video_device *video_device_alloc(void); 100 void 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 */ 115 enum 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) 144 145 enum 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 }; 158 159 enum 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 }; 165 166 enum v4l2_tuner_type { 167 V4L2_TUNER_RADIO = 1, 168 V4L2_TUNER_ANALOG_TV = 2, 169 V4L2_TUNER_DIGITAL_TV = 3, 170 }; 171 172 enum 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/ */ 179 enum 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 }; 205 206 enum 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 }; 213 214 struct v4l2_rect { 215 __s32 left; 216 __s32 top; 217 __s32 width; 218 __s32 height; 219 }; 220 221 struct 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 */ 229 struct 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 */ 262 263 struct 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 */ 323 struct 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 */ 339 struct 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 */ 373 374 375 enum v4l2_bitrate_mode { 376 V4L2_BITRATE_NONE = 0, /* not specified */ 377 V4L2_BITRATE_CBR, /* constant bitrate */ 378 V4L2_BITRATE_VBR, /* variable bitrate */ 379 }; 380 struct 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 }; 387 388 enum 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 }; 394 enum 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 }; 401 enum v4l2_mpeg_videotype { 402 V4L2_MPEG_VI_1, /* MPEG-1 */ 403 V4L2_MPEG_VI_2, /* MPEG-2 */ 404 }; 405 enum 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 }; 411 412 struct 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 }; 452 453 struct 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 */ 487 struct v4l2_requestbuffers 488 { 489 __u32 count; 490 enum v4l2_buf_type type; 491 enum v4l2_memory memory; 492 __u32 reserved[2]; 493 }; 494 495 struct 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 */ 530 struct 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 548 549 struct v4l2_clip 550 { 551 struct v4l2_rect c; 552 struct v4l2_clip __user *next; 553 }; 554 555 struct 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 */ 569 struct 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 */ 581 582 struct 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 */ 595 596 struct v4l2_cropcap { 597 enum v4l2_buf_type type; 598 struct v4l2_rect bounds; 599 struct v4l2_rect defrect; 600 struct v4l2_fract pixelaspect; 601 }; 602 603 struct 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 */ 611 612 typedef __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) 691 692 struct 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 */ 706 struct 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 */ 743 struct 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 */ 761 struct v4l2_control 762 { 763 __u32 id; 764 __s32 value; 765 }; 766 767 /* Used in the VIDIOC_QUERYCTRL ioctl for querying controls */ 768 struct 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 */ 782 struct 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 */ 828 struct 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 }; 842 843 struct 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 875 876 struct 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 */ 887 struct 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 901 902 struct 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 */ 918 919 struct 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 */ 942 943 struct 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) 962 963 struct 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 }; 973 974 struct 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 */ 990 struct 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 */ 1008 struct 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 */ 1103 extern unsigned int v4l2_video_std_fps(struct v4l2_standard *vs); 1104 extern int v4l2_video_std_construct(struct v4l2_standard *vs, 1105 int id, char *name); 1106 1107 /* prority handling */ 1108 struct v4l2_prio_state { 1109 atomic_t prios[4]; 1110 }; 1111 int v4l2_prio_init(struct v4l2_prio_state *global); 1112 int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local, 1113 enum v4l2_priority new); 1114 int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local); 1115 int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local); 1116 enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global); 1117 int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local); 1118 1119 /* names for fancy debug output */ 1120 extern char *v4l2_field_names[]; 1121 extern char *v4l2_type_names[]; 1122 1123 /* Compatibility layer interface -- v4l1-compat module */ 1124 typedef int (*v4l2_kioctl)(struct inode *inode, struct file *file, 1125 unsigned int cmd, void *arg); 1126 int 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 */ 1130 extern 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 */ 1142