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