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