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 #include <linux/poll.h>
  19 #include <linux/device.h>
  20 #include <linux/mutex.h>
  21 #endif
  22 #include <linux/compiler.h> /* need __user */
  23
  24
  25 #define OBSOLETE_OWNER 1 /* It will be removed for 2.6.17 */
  26 #define HAVE_V4L2 1
  27
  28 /*
  29  * Common stuff for both V4L1 and V4L2
  30  * Moved from videodev.h
  31  */
  32
  33 #define VIDEO_MAX_FRAME               32
  34
  35 #define VID_TYPE_CAPTURE        1       /* Can capture */
  36 #define VID_TYPE_TUNER          2       /* Can tune */
  37 #define VID_TYPE_TELETEXT       4       /* Does teletext */
  38 #define VID_TYPE_OVERLAY        8       /* Overlay onto frame buffer */
  39 #define VID_TYPE_CHROMAKEY      16      /* Overlay by chromakey */
  40 #define VID_TYPE_CLIPPING       32      /* Can clip */
  41 #define VID_TYPE_FRAMERAM       64      /* Uses the frame buffer memory */
  42 #define VID_TYPE_SCALES         128     /* Scalable */
  43 #define VID_TYPE_MONOCHROME     256     /* Monochrome only */
  44 #define VID_TYPE_SUBCAPTURE     512     /* Can capture subareas of the image */
  45 #define VID_TYPE_MPEG_DECODER   1024    /* Can decode MPEG streams */
  46 #define VID_TYPE_MPEG_ENCODER   2048    /* Can encode MPEG streams */
  47 #define VID_TYPE_MJPEG_DECODER  4096    /* Can decode MJPEG streams */
  48 #define VID_TYPE_MJPEG_ENCODER  8192    /* Can encode MJPEG streams */
  49
  50 #ifdef __KERNEL__
  51
  52 /* Minor device allocation */
  53 #define MINOR_VFL_TYPE_GRABBER_MIN   0
  54 #define MINOR_VFL_TYPE_GRABBER_MAX  63
  55 #define MINOR_VFL_TYPE_RADIO_MIN    64
  56 #define MINOR_VFL_TYPE_RADIO_MAX   127
  57 #define MINOR_VFL_TYPE_VTX_MIN     192
  58 #define MINOR_VFL_TYPE_VTX_MAX     223
  59 #define MINOR_VFL_TYPE_VBI_MIN     224
  60 #define MINOR_VFL_TYPE_VBI_MAX     255
  61
  62 #define VFL_TYPE_GRABBER        0
  63 #define VFL_TYPE_VBI            1
  64 #define VFL_TYPE_RADIO          2
  65 #define VFL_TYPE_VTX            3
  66
  67 struct video_device
  68 {
  69         /* device info */
  70         struct device *dev;
  71         char name[32];
  72         int type;       /* v4l1 */
  73         int type2;      /* v4l2 */
  74         int hardware;
  75         int minor;
  76
  77         /* device ops + callbacks */
  78         const struct file_operations *fops;
  79         void (*release)(struct video_device *vfd);
  80
  81
  82 #if OBSOLETE_OWNER /* to be removed in 2.6.15 */
  83         /* obsolete -- fops->owner is used instead */
  84         struct module *owner;
  85         /* dev->driver_data will be used instead some day.
  86          * Use the video_{get|set}_drvdata() helper functions,
  87          * so the switch over will be transparent for you.
  88          * Or use {pci|usb}_{get|set}_drvdata() directly. */
  89         void *priv;
  90 #endif
  91
  92         /* for videodev.c intenal usage -- please don't touch */
  93         int users;                     /* video_exclusive_{open|close} ... */
  94         struct mutex lock;             /* ... helper function uses these   */
  95         char devfs_name[64];           /* devfs */
  96         struct class_device class_dev; /* sysfs */
  97 };
  98
  99 #define VIDEO_MAJOR     81
 100
 101 extern int video_register_device(struct video_device *, int type, int nr);
 102 extern void video_unregister_device(struct video_device *);
 103 extern int video_usercopy(struct inode *inode, struct file *file,
 104                           unsigned int cmd, unsigned long arg,
 105                           int (*func)(struct inode *inode, struct file *file,
 106                                       unsigned int cmd, void *arg));
 107
 108 /* helper functions to alloc / release struct video_device, the
 109    later can be used for video_device->release() */
 110 struct video_device *video_device_alloc(void);
 111 void video_device_release(struct video_device *vfd);
 112
 113 #endif
 114
 115 /*
 116  *      M I S C E L L A N E O U S
 117  */
 118
 119 /*  Four-character-code (FOURCC) */
 120 #define v4l2_fourcc(a,b,c,d)\
 121         (((__u32)(a)<<0)|((__u32)(b)<<8)|((__u32)(c)<<16)|((__u32)(d)<<24))
 122
 123 /*
 124  *      E N U M S
 125  */
 126 enum v4l2_field {
 127         V4L2_FIELD_ANY        = 0, /* driver can choose from none,
 128                                       top, bottom, interlaced
 129                                       depending on whatever it thinks
 130                                       is approximate ... */
 131         V4L2_FIELD_NONE       = 1, /* this device has no fields ... */
 132         V4L2_FIELD_TOP        = 2, /* top field only */
 133         V4L2_FIELD_BOTTOM     = 3, /* bottom field only */
 134         V4L2_FIELD_INTERLACED = 4, /* both fields interlaced */
 135         V4L2_FIELD_SEQ_TB     = 5, /* both fields sequential into one
 136                                       buffer, top-bottom order */
 137         V4L2_FIELD_SEQ_BT     = 6, /* same as above + bottom-top order */
 138         V4L2_FIELD_ALTERNATE  = 7, /* both fields alternating into
 139                                       separate buffers */
 140 };
 141 #define V4L2_FIELD_HAS_TOP(field)       \
 142         ((field) == V4L2_FIELD_TOP      ||\
 143          (field) == V4L2_FIELD_INTERLACED ||\
 144          (field) == V4L2_FIELD_SEQ_TB   ||\
 145          (field) == V4L2_FIELD_SEQ_BT)
 146 #define V4L2_FIELD_HAS_BOTTOM(field)    \
 147         ((field) == V4L2_FIELD_BOTTOM   ||\
 148          (field) == V4L2_FIELD_INTERLACED ||\
 149          (field) == V4L2_FIELD_SEQ_TB   ||\
 150          (field) == V4L2_FIELD_SEQ_BT)
 151 #define V4L2_FIELD_HAS_BOTH(field)      \
 152         ((field) == V4L2_FIELD_INTERLACED ||\
 153          (field) == V4L2_FIELD_SEQ_TB   ||\
 154          (field) == V4L2_FIELD_SEQ_BT)
 155
 156 enum v4l2_buf_type {
 157         V4L2_BUF_TYPE_VIDEO_CAPTURE      = 1,
 158         V4L2_BUF_TYPE_VIDEO_OUTPUT       = 2,
 159         V4L2_BUF_TYPE_VIDEO_OVERLAY      = 3,
 160         V4L2_BUF_TYPE_VBI_CAPTURE        = 4,
 161         V4L2_BUF_TYPE_VBI_OUTPUT         = 5,
 162 #if 1
 163         /* Experimental Sliced VBI */
 164         V4L2_BUF_TYPE_SLICED_VBI_CAPTURE = 6,
 165         V4L2_BUF_TYPE_SLICED_VBI_OUTPUT  = 7,
 166 #endif
 167         V4L2_BUF_TYPE_PRIVATE            = 0x80,
 168 };
 169
 170 enum v4l2_ctrl_type {
 171         V4L2_CTRL_TYPE_INTEGER       = 1,
 172         V4L2_CTRL_TYPE_BOOLEAN       = 2,
 173         V4L2_CTRL_TYPE_MENU          = 3,
 174         V4L2_CTRL_TYPE_BUTTON        = 4,
 175 };
 176
 177 enum v4l2_tuner_type {
 178         V4L2_TUNER_RADIO             = 1,
 179         V4L2_TUNER_ANALOG_TV         = 2,
 180         V4L2_TUNER_DIGITAL_TV        = 3,
 181 };
 182
 183 enum v4l2_memory {
 184         V4L2_MEMORY_MMAP             = 1,
 185         V4L2_MEMORY_USERPTR          = 2,
 186         V4L2_MEMORY_OVERLAY          = 3,
 187 };
 188
 189 /* see also http://vektor.theorem.ca/graphics/ycbcr/ */
 190 enum v4l2_colorspace {
 191         /* ITU-R 601 -- broadcast NTSC/PAL */
 192         V4L2_COLORSPACE_SMPTE170M     = 1,
 193
 194         /* 1125-Line (US) HDTV */
 195         V4L2_COLORSPACE_SMPTE240M     = 2,
 196
 197         /* HD and modern captures. */
 198         V4L2_COLORSPACE_REC709        = 3,
 199
 200         /* broken BT878 extents (601, luma range 16-253 instead of 16-235) */
 201         V4L2_COLORSPACE_BT878         = 4,
 202
 203         /* These should be useful.  Assume 601 extents. */
 204         V4L2_COLORSPACE_470_SYSTEM_M  = 5,
 205         V4L2_COLORSPACE_470_SYSTEM_BG = 6,
 206
 207         /* I know there will be cameras that send this.  So, this is
 208          * unspecified chromaticities and full 0-255 on each of the
 209          * Y'CbCr components
 210          */
 211         V4L2_COLORSPACE_JPEG          = 7,
 212
 213         /* For RGB colourspaces, this is probably a good start. */
 214         V4L2_COLORSPACE_SRGB          = 8,
 215 };
 216
 217 enum v4l2_priority {
 218         V4L2_PRIORITY_UNSET       = 0,  /* not initialized */
 219         V4L2_PRIORITY_BACKGROUND  = 1,
 220         V4L2_PRIORITY_INTERACTIVE = 2,
 221         V4L2_PRIORITY_RECORD      = 3,
 222         V4L2_PRIORITY_DEFAULT     = V4L2_PRIORITY_INTERACTIVE,
 223 };
 224
 225 struct v4l2_rect {
 226         __s32   left;
 227         __s32   top;
 228         __s32   width;
 229         __s32   height;
 230 };
 231
 232 struct v4l2_fract {
 233         __u32   numerator;
 234         __u32   denominator;
 235 };
 236
 237 /*
 238  *      D R I V E R   C A P A B I L I T I E S
 239  */
 240 struct v4l2_capability
 241 {
 242         __u8    driver[16];     /* i.e. "bttv" */
 243         __u8    card[32];       /* i.e. "Hauppauge WinTV" */
 244         __u8    bus_info[32];   /* "PCI:" + pci_name(pci_dev) */
 245         __u32   version;        /* should use KERNEL_VERSION() */
 246         __u32   capabilities;   /* Device capabilities */
 247         __u32   reserved[4];
 248 };
 249
 250 /* Values for 'capabilities' field */
 251 #define V4L2_CAP_VIDEO_CAPTURE          0x00000001  /* Is a video capture device */
 252 #define V4L2_CAP_VIDEO_OUTPUT           0x00000002  /* Is a video output device */
 253 #define V4L2_CAP_VIDEO_OVERLAY          0x00000004  /* Can do video overlay */
 254 #define V4L2_CAP_VBI_CAPTURE            0x00000010  /* Is a raw VBI capture device */
 255 #define V4L2_CAP_VBI_OUTPUT             0x00000020  /* Is a raw VBI output device */
 256 #if 1
 257 #define V4L2_CAP_SLICED_VBI_CAPTURE     0x00000040  /* Is a sliced VBI capture device */
 258 #define V4L2_CAP_SLICED_VBI_OUTPUT      0x00000080  /* Is a sliced VBI output device */
 259 #endif
 260 #define V4L2_CAP_RDS_CAPTURE            0x00000100  /* RDS data capture */
 261
 262 #define V4L2_CAP_TUNER                  0x00010000  /* has a tuner */
 263 #define V4L2_CAP_AUDIO                  0x00020000  /* has audio support */
 264 #define V4L2_CAP_RADIO                  0x00040000  /* is a radio device */
 265
 266 #define V4L2_CAP_READWRITE              0x01000000  /* read/write systemcalls */
 267 #define V4L2_CAP_ASYNCIO                0x02000000  /* async I/O */
 268 #define V4L2_CAP_STREAMING              0x04000000  /* streaming I/O ioctls */
 269
 270 /*
 271  *      V I D E O   I M A G E   F O R M A T
 272  */
 273
 274 struct v4l2_pix_format
 275 {
 276         __u32                   width;
 277         __u32                   height;
 278         __u32                   pixelformat;
 279         enum v4l2_field         field;
 280         __u32                   bytesperline;   /* for padding, zero if unused */
 281         __u32                   sizeimage;
 282         enum v4l2_colorspace    colorspace;
 283         __u32                   priv;           /* private data, depends on pixelformat */
 284 };
 285
 286 /*           Pixel format    FOURCC                  depth  Description   */
 287 #define V4L2_PIX_FMT_RGB332  v4l2_fourcc('R','G','B','1') /*  8  RGB-3-3-2     */
 288 #define V4L2_PIX_FMT_RGB555  v4l2_fourcc('R','G','B','O') /* 16  RGB-5-5-5     */
 289 #define V4L2_PIX_FMT_RGB565  v4l2_fourcc('R','G','B','P') /* 16  RGB-5-6-5     */
 290 #define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R','G','B','Q') /* 16  RGB-5-5-5 BE  */
 291 #define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R','G','B','R') /* 16  RGB-5-6-5 BE  */
 292 #define V4L2_PIX_FMT_BGR24   v4l2_fourcc('B','G','R','3') /* 24  BGR-8-8-8     */
 293 #define V4L2_PIX_FMT_RGB24   v4l2_fourcc('R','G','B','3') /* 24  RGB-8-8-8     */
 294 #define V4L2_PIX_FMT_BGR32   v4l2_fourcc('B','G','R','4') /* 32  BGR-8-8-8-8   */
 295 #define V4L2_PIX_FMT_RGB32   v4l2_fourcc('R','G','B','4') /* 32  RGB-8-8-8-8   */
 296 #define V4L2_PIX_FMT_GREY    v4l2_fourcc('G','R','E','Y') /*  8  Greyscale     */
 297 #define V4L2_PIX_FMT_YVU410  v4l2_fourcc('Y','V','U','9') /*  9  YVU 4:1:0     */
 298 #define V4L2_PIX_FMT_YVU420  v4l2_fourcc('Y','V','1','2') /* 12  YVU 4:2:0     */
 299 #define V4L2_PIX_FMT_YUYV    v4l2_fourcc('Y','U','Y','V') /* 16  YUV 4:2:2     */
 300 #define V4L2_PIX_FMT_UYVY    v4l2_fourcc('U','Y','V','Y') /* 16  YUV 4:2:2     */
 301 #define V4L2_PIX_FMT_YUV422P v4l2_fourcc('4','2','2','P') /* 16  YVU422 planar */
 302 #define V4L2_PIX_FMT_YUV411P v4l2_fourcc('4','1','1','P') /* 16  YVU411 planar */
 303 #define V4L2_PIX_FMT_Y41P    v4l2_fourcc('Y','4','1','P') /* 12  YUV 4:1:1     */
 304
 305 /* two planes -- one Y, one Cr + Cb interleaved  */
 306 #define V4L2_PIX_FMT_NV12    v4l2_fourcc('N','V','1','2') /* 12  Y/CbCr 4:2:0  */
 307 #define V4L2_PIX_FMT_NV21    v4l2_fourcc('N','V','2','1') /* 12  Y/CrCb 4:2:0  */
 308
 309 /*  The following formats are not defined in the V4L2 specification */
 310 #define V4L2_PIX_FMT_YUV410  v4l2_fourcc('Y','U','V','9') /*  9  YUV 4:1:0     */
 311 #define V4L2_PIX_FMT_YUV420  v4l2_fourcc('Y','U','1','2') /* 12  YUV 4:2:0     */
 312 #define V4L2_PIX_FMT_YYUV    v4l2_fourcc('Y','Y','U','V') /* 16  YUV 4:2:2     */
 313 #define V4L2_PIX_FMT_HI240   v4l2_fourcc('H','I','2','4') /*  8  8-bit color   */
 314
 315 /* see http://www.siliconimaging.com/RGB%20Bayer.htm */
 316 #define V4L2_PIX_FMT_SBGGR8  v4l2_fourcc('B','A','8','1') /*  8  BGBG.. GRGR.. */
 317
 318 /* compressed formats */
 319 #define V4L2_PIX_FMT_MJPEG    v4l2_fourcc('M','J','P','G') /* Motion-JPEG   */
 320 #define V4L2_PIX_FMT_JPEG     v4l2_fourcc('J','P','E','G') /* JFIF JPEG     */
 321 #define V4L2_PIX_FMT_DV       v4l2_fourcc('d','v','s','d') /* 1394          */
 322 #define V4L2_PIX_FMT_MPEG     v4l2_fourcc('M','P','E','G') /* MPEG          */
 323
 324 /*  Vendor-specific formats   */
 325 #define V4L2_PIX_FMT_WNVA     v4l2_fourcc('W','N','V','A') /* Winnov hw compress */
 326 #define V4L2_PIX_FMT_SN9C10X  v4l2_fourcc('S','9','1','0') /* SN9C10x compression */
 327 #define V4L2_PIX_FMT_PWC1     v4l2_fourcc('P','W','C','1') /* pwc older webcam */
 328 #define V4L2_PIX_FMT_PWC2     v4l2_fourcc('P','W','C','2') /* pwc newer webcam */
 329 #define V4L2_PIX_FMT_ET61X251 v4l2_fourcc('E','6','2','5') /* ET61X251 compression */
 330
 331 /*
 332  *      F O R M A T   E N U M E R A T I O N
 333  */
 334 struct v4l2_fmtdesc
 335 {
 336         __u32               index;             /* Format number      */
 337         enum v4l2_buf_type  type;              /* buffer type        */
 338         __u32               flags;
 339         __u8                description[32];   /* Description string */
 340         __u32               pixelformat;       /* Format fourcc      */
 341         __u32               reserved[4];
 342 };
 343
 344 #define V4L2_FMT_FLAG_COMPRESSED 0x0001
 345
 346
 347 /*
 348  *      T I M E C O D E
 349  */
 350 struct v4l2_timecode
 351 {
 352         __u32   type;
 353         __u32   flags;
 354         __u8    frames;
 355         __u8    seconds;
 356         __u8    minutes;
 357         __u8    hours;
 358         __u8    userbits[4];
 359 };
 360
 361 /*  Type  */
 362 #define V4L2_TC_TYPE_24FPS              1
 363 #define V4L2_TC_TYPE_25FPS              2
 364 #define V4L2_TC_TYPE_30FPS              3
 365 #define V4L2_TC_TYPE_50FPS              4
 366 #define V4L2_TC_TYPE_60FPS              5
 367
 368 /*  Flags  */
 369 #define V4L2_TC_FLAG_DROPFRAME          0x0001 /* "drop-frame" mode */
 370 #define V4L2_TC_FLAG_COLORFRAME         0x0002
 371 #define V4L2_TC_USERBITS_field          0x000C
 372 #define V4L2_TC_USERBITS_USERDEFINED    0x0000
 373 #define V4L2_TC_USERBITS_8BITCHARS      0x0008
 374 /* The above is based on SMPTE timecodes */
 375
 376
 377 /*
 378  *      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
 379  *
 380  *  ### WARNING: this is still work-in-progress right now, most likely
 381  *  ###          there will be some incompatible changes.
 382  *
 383  */
 384
 385
 386 enum v4l2_bitrate_mode {
 387         V4L2_BITRATE_NONE = 0,  /* not specified */
 388         V4L2_BITRATE_CBR,       /* constant bitrate */
 389         V4L2_BITRATE_VBR,       /* variable bitrate */
 390 };
 391 struct v4l2_bitrate {
 392         /* rates are specified in kbit/sec */
 393         enum v4l2_bitrate_mode  mode;
 394         __u32                   min;
 395         __u32                   target;  /* use this one for CBR */
 396         __u32                   max;
 397 };
 398
 399 enum v4l2_mpeg_streamtype {
 400         V4L2_MPEG_SS_1,         /* MPEG-1 system stream */
 401         V4L2_MPEG_PS_2,         /* MPEG-2 program stream */
 402         V4L2_MPEG_TS_2,         /* MPEG-2 transport stream */
 403         V4L2_MPEG_PS_DVD,       /* MPEG-2 program stream with DVD header fixups */
 404 };
 405 enum v4l2_mpeg_audiotype {
 406         V4L2_MPEG_AU_2_I,       /* MPEG-2 layer 1 */
 407         V4L2_MPEG_AU_2_II,      /* MPEG-2 layer 2 */
 408         V4L2_MPEG_AU_2_III,     /* MPEG-2 layer 3 */
 409         V4L2_MPEG_AC3,          /* AC3 */
 410         V4L2_MPEG_LPCM,         /* LPCM */
 411 };
 412 enum v4l2_mpeg_videotype {
 413         V4L2_MPEG_VI_1,         /* MPEG-1 */
 414         V4L2_MPEG_VI_2,         /* MPEG-2 */
 415 };
 416 enum v4l2_mpeg_aspectratio {
 417         V4L2_MPEG_ASPECT_SQUARE = 1,   /* square pixel */
 418         V4L2_MPEG_ASPECT_4_3    = 2,   /*  4 : 3       */
 419         V4L2_MPEG_ASPECT_16_9   = 3,   /* 16 : 9       */
 420         V4L2_MPEG_ASPECT_1_221  = 4,   /*  1 : 2,21    */
 421 };
 422
 423 struct v4l2_mpeg_compression {
 424         /* general */
 425         enum v4l2_mpeg_streamtype       st_type;
 426         struct v4l2_bitrate             st_bitrate;
 427
 428         /* transport streams */
 429         __u16                           ts_pid_pmt;
 430         __u16                           ts_pid_audio;
 431         __u16                           ts_pid_video;
 432         __u16                           ts_pid_pcr;
 433
 434         /* program stream */
 435         __u16                           ps_size;
 436         __u16                           reserved_1;    /* align */
 437
 438         /* audio */
 439         enum v4l2_mpeg_audiotype        au_type;
 440         struct v4l2_bitrate             au_bitrate;
 441         __u32                           au_sample_rate;
 442         __u8                            au_pesid;
 443         __u8                            reserved_2[3]; /* align */
 444
 445         /* video */
 446         enum v4l2_mpeg_videotype        vi_type;
 447         enum v4l2_mpeg_aspectratio      vi_aspect_ratio;
 448         struct v4l2_bitrate             vi_bitrate;
 449         __u32                           vi_frame_rate;
 450         __u16                           vi_frames_per_gop;
 451         __u16                           vi_bframes_count;
 452         __u8                            vi_pesid;
 453         __u8                            reserved_3[3]; /* align */
 454
 455         /* misc flags */
 456         __u32                           closed_gops:1;
 457         __u32                           pulldown:1;
 458         __u32                           reserved_4:30; /* align */
 459
 460         /* I don't expect the above being perfect yet ;) */
 461         __u32                           reserved_5[8];
 462 };
 463
 464 struct v4l2_jpegcompression
 465 {
 466         int quality;
 467
 468         int  APPn;              /* Number of APP segment to be written,
 469                                  * must be 0..15 */
 470         int  APP_len;           /* Length of data in JPEG APPn segment */
 471         char APP_data[60];      /* Data in the JPEG APPn segment. */
 472
 473         int  COM_len;           /* Length of data in JPEG COM segment */
 474         char COM_data[60];      /* Data in JPEG COM segment */
 475
 476         __u32 jpeg_markers;     /* Which markers should go into the JPEG
 477                                  * output. Unless you exactly know what
 478                                  * you do, leave them untouched.
 479                                  * Inluding less markers will make the
 480                                  * resulting code smaller, but there will
 481                                  * be fewer aplications which can read it.
 482                                  * The presence of the APP and COM marker
 483                                  * is influenced by APP_len and COM_len
 484                                  * ONLY, not by this property! */
 485
 486 #define V4L2_JPEG_MARKER_DHT (1<<3)    /* Define Huffman Tables */
 487 #define V4L2_JPEG_MARKER_DQT (1<<4)    /* Define Quantization Tables */
 488 #define V4L2_JPEG_MARKER_DRI (1<<5)    /* Define Restart Interval */
 489 #define V4L2_JPEG_MARKER_COM (1<<6)    /* Comment segment */
 490 #define V4L2_JPEG_MARKER_APP (1<<7)    /* App segment, driver will
 491                                         * allways use APP0 */
 492 };
 493
 494
 495 /*
 496  *      M E M O R Y - M A P P I N G   B U F F E R S
 497  */
 498 struct v4l2_requestbuffers
 499 {
 500         __u32                   count;
 501         enum v4l2_buf_type      type;
 502         enum v4l2_memory        memory;
 503         __u32                   reserved[2];
 504 };
 505
 506 struct v4l2_buffer
 507 {
 508         __u32                   index;
 509         enum v4l2_buf_type      type;
 510         __u32                   bytesused;
 511         __u32                   flags;
 512         enum v4l2_field         field;
 513         struct timeval          timestamp;
 514         struct v4l2_timecode    timecode;
 515         __u32                   sequence;
 516
 517         /* memory location */
 518         enum v4l2_memory        memory;
 519         union {
 520                 __u32           offset;
 521                 unsigned long   userptr;
 522         } m;
 523         __u32                   length;
 524         __u32                   input;
 525         __u32                   reserved;
 526 };
 527
 528 /*  Flags for 'flags' field */
 529 #define V4L2_BUF_FLAG_MAPPED    0x0001  /* Buffer is mapped (flag) */
 530 #define V4L2_BUF_FLAG_QUEUED    0x0002  /* Buffer is queued for processing */
 531 #define V4L2_BUF_FLAG_DONE      0x0004  /* Buffer is ready */
 532 #define V4L2_BUF_FLAG_KEYFRAME  0x0008  /* Image is a keyframe (I-frame) */
 533 #define V4L2_BUF_FLAG_PFRAME    0x0010  /* Image is a P-frame */
 534 #define V4L2_BUF_FLAG_BFRAME    0x0020  /* Image is a B-frame */
 535 #define V4L2_BUF_FLAG_TIMECODE  0x0100  /* timecode field is valid */
 536 #define V4L2_BUF_FLAG_INPUT     0x0200  /* input field is valid */
 537
 538 /*
 539  *      O V E R L A Y   P R E V I E W
 540  */
 541 struct v4l2_framebuffer
 542 {
 543         __u32                   capability;
 544         __u32                   flags;
 545 /* FIXME: in theory we should pass something like PCI device + memory
 546  * region + offset instead of some physical address */
 547         void*                   base;
 548         struct v4l2_pix_format  fmt;
 549 };
 550 /*  Flags for the 'capability' field. Read only */
 551 #define V4L2_FBUF_CAP_EXTERNOVERLAY     0x0001
 552 #define V4L2_FBUF_CAP_CHROMAKEY         0x0002
 553 #define V4L2_FBUF_CAP_LIST_CLIPPING     0x0004
 554 #define V4L2_FBUF_CAP_BITMAP_CLIPPING   0x0008
 555 /*  Flags for the 'flags' field. */
 556 #define V4L2_FBUF_FLAG_PRIMARY          0x0001
 557 #define V4L2_FBUF_FLAG_OVERLAY          0x0002
 558 #define V4L2_FBUF_FLAG_CHROMAKEY        0x0004
 559
 560 struct v4l2_clip
 561 {
 562         struct v4l2_rect        c;
 563         struct v4l2_clip        __user *next;
 564 };
 565
 566 struct v4l2_window
 567 {
 568         struct v4l2_rect        w;
 569         enum v4l2_field         field;
 570         __u32                   chromakey;
 571         struct v4l2_clip        __user *clips;
 572         __u32                   clipcount;
 573         void                    __user *bitmap;
 574 };
 575
 576
 577 /*
 578  *      C A P T U R E   P A R A M E T E R S
 579  */
 580 struct v4l2_captureparm
 581 {
 582         __u32              capability;    /*  Supported modes */
 583         __u32              capturemode;   /*  Current mode */
 584         struct v4l2_fract  timeperframe;  /*  Time per frame in .1us units */
 585         __u32              extendedmode;  /*  Driver-specific extensions */
 586         __u32              readbuffers;   /*  # of buffers for read */
 587         __u32              reserved[4];
 588 };
 589 /*  Flags for 'capability' and 'capturemode' fields */
 590 #define V4L2_MODE_HIGHQUALITY   0x0001  /*  High quality imaging mode */
 591 #define V4L2_CAP_TIMEPERFRAME   0x1000  /*  timeperframe field is supported */
 592
 593 struct v4l2_outputparm
 594 {
 595         __u32              capability;   /*  Supported modes */
 596         __u32              outputmode;   /*  Current mode */
 597         struct v4l2_fract  timeperframe; /*  Time per frame in seconds */
 598         __u32              extendedmode; /*  Driver-specific extensions */
 599         __u32              writebuffers; /*  # of buffers for write */
 600         __u32              reserved[4];
 601 };
 602
 603 /*
 604  *      I N P U T   I M A G E   C R O P P I N G
 605  */
 606
 607 struct v4l2_cropcap {
 608         enum v4l2_buf_type      type;
 609         struct v4l2_rect        bounds;
 610         struct v4l2_rect        defrect;
 611         struct v4l2_fract       pixelaspect;
 612 };
 613
 614 struct v4l2_crop {
 615         enum v4l2_buf_type      type;
 616         struct v4l2_rect        c;
 617 };
 618
 619 /*
 620  *      A N A L O G   V I D E O   S T A N D A R D
 621  */
 622
 623 typedef __u64 v4l2_std_id;
 624
 625 /* one bit for each */
 626 #define V4L2_STD_PAL_B          ((v4l2_std_id)0x00000001)
 627 #define V4L2_STD_PAL_B1         ((v4l2_std_id)0x00000002)
 628 #define V4L2_STD_PAL_G          ((v4l2_std_id)0x00000004)
 629 #define V4L2_STD_PAL_H          ((v4l2_std_id)0x00000008)
 630 #define V4L2_STD_PAL_I          ((v4l2_std_id)0x00000010)
 631 #define V4L2_STD_PAL_D          ((v4l2_std_id)0x00000020)
 632 #define V4L2_STD_PAL_D1         ((v4l2_std_id)0x00000040)
 633 #define V4L2_STD_PAL_K          ((v4l2_std_id)0x00000080)
 634
 635 #define V4L2_STD_PAL_M          ((v4l2_std_id)0x00000100)
 636 #define V4L2_STD_PAL_N          ((v4l2_std_id)0x00000200)
 637 #define V4L2_STD_PAL_Nc         ((v4l2_std_id)0x00000400)
 638 #define V4L2_STD_PAL_60         ((v4l2_std_id)0x00000800)
 639
 640 #define V4L2_STD_NTSC_M         ((v4l2_std_id)0x00001000)
 641 #define V4L2_STD_NTSC_M_JP      ((v4l2_std_id)0x00002000)
 642 #define V4L2_STD_NTSC_443       ((v4l2_std_id)0x00004000)
 643 #define V4L2_STD_NTSC_M_KR      ((v4l2_std_id)0x00008000)
 644
 645 #define V4L2_STD_SECAM_B        ((v4l2_std_id)0x00010000)
 646 #define V4L2_STD_SECAM_D        ((v4l2_std_id)0x00020000)
 647 #define V4L2_STD_SECAM_G        ((v4l2_std_id)0x00040000)
 648 #define V4L2_STD_SECAM_H        ((v4l2_std_id)0x00080000)
 649 #define V4L2_STD_SECAM_K        ((v4l2_std_id)0x00100000)
 650 #define V4L2_STD_SECAM_K1       ((v4l2_std_id)0x00200000)
 651 #define V4L2_STD_SECAM_L        ((v4l2_std_id)0x00400000)
 652 #define V4L2_STD_SECAM_LC       ((v4l2_std_id)0x00800000)
 653
 654 /* ATSC/HDTV */
 655 #define V4L2_STD_ATSC_8_VSB     ((v4l2_std_id)0x01000000)
 656 #define V4L2_STD_ATSC_16_VSB    ((v4l2_std_id)0x02000000)
 657
 658 /* some merged standards */
 659 #define V4L2_STD_MN     (V4L2_STD_PAL_M|V4L2_STD_PAL_N|V4L2_STD_PAL_Nc|V4L2_STD_NTSC)
 660 #define V4L2_STD_B      (V4L2_STD_PAL_B|V4L2_STD_PAL_B1|V4L2_STD_SECAM_B)
 661 #define V4L2_STD_GH     (V4L2_STD_PAL_G|V4L2_STD_PAL_H|V4L2_STD_SECAM_G|V4L2_STD_SECAM_H)
 662 #define V4L2_STD_DK     (V4L2_STD_PAL_DK|V4L2_STD_SECAM_DK)
 663
 664 /* some common needed stuff */
 665 #define V4L2_STD_PAL_BG         (V4L2_STD_PAL_B         |\
 666                                  V4L2_STD_PAL_B1        |\
 667                                  V4L2_STD_PAL_G)
 668 #define V4L2_STD_PAL_DK         (V4L2_STD_PAL_D         |\
 669                                  V4L2_STD_PAL_D1        |\
 670                                  V4L2_STD_PAL_K)
 671 #define V4L2_STD_PAL            (V4L2_STD_PAL_BG        |\
 672                                  V4L2_STD_PAL_DK        |\
 673                                  V4L2_STD_PAL_H         |\
 674                                  V4L2_STD_PAL_I)
 675 #define V4L2_STD_NTSC           (V4L2_STD_NTSC_M        |\
 676                                  V4L2_STD_NTSC_M_JP     |\
 677                                  V4L2_STD_NTSC_M_KR)
 678 #define V4L2_STD_SECAM_DK       (V4L2_STD_SECAM_D       |\
 679                                  V4L2_STD_SECAM_K       |\
 680                                  V4L2_STD_SECAM_K1)
 681 #define V4L2_STD_SECAM          (V4L2_STD_SECAM_B       |\
 682                                  V4L2_STD_SECAM_G       |\
 683                                  V4L2_STD_SECAM_H       |\
 684                                  V4L2_STD_SECAM_DK      |\
 685                                  V4L2_STD_SECAM_L       |\
 686                                  V4L2_STD_SECAM_LC)
 687
 688 #define V4L2_STD_525_60         (V4L2_STD_PAL_M         |\
 689                                  V4L2_STD_PAL_60        |\
 690                                  V4L2_STD_NTSC          |\
 691                                  V4L2_STD_NTSC_443)
 692 #define V4L2_STD_625_50         (V4L2_STD_PAL           |\
 693                                  V4L2_STD_PAL_N         |\
 694                                  V4L2_STD_PAL_Nc        |\
 695                                  V4L2_STD_SECAM)
 696 #define V4L2_STD_ATSC           (V4L2_STD_ATSC_8_VSB    |\
 697                                  V4L2_STD_ATSC_16_VSB)
 698
 699 #define V4L2_STD_UNKNOWN        0
 700 #define V4L2_STD_ALL            (V4L2_STD_525_60        |\
 701                                  V4L2_STD_625_50)
 702
 703 struct v4l2_standard
 704 {
 705         __u32                index;
 706         v4l2_std_id          id;
 707         __u8                 name[24];
 708         struct v4l2_fract    frameperiod; /* Frames, not fields */
 709         __u32                framelines;
 710         __u32                reserved[4];
 711 };
 712
 713
 714 /*
 715  *      V I D E O   I N P U T S
 716  */
 717 struct v4l2_input
 718 {
 719         __u32        index;             /*  Which input */
 720         __u8         name[32];          /*  Label */
 721         __u32        type;              /*  Type of input */
 722         __u32        audioset;          /*  Associated audios (bitfield) */
 723         __u32        tuner;             /*  Associated tuner */
 724         v4l2_std_id  std;
 725         __u32        status;
 726         __u32        reserved[4];
 727 };
 728 /*  Values for the 'type' field */
 729 #define V4L2_INPUT_TYPE_TUNER           1
 730 #define V4L2_INPUT_TYPE_CAMERA          2
 731
 732 /* field 'status' - general */
 733 #define V4L2_IN_ST_NO_POWER    0x00000001  /* Attached device is off */
 734 #define V4L2_IN_ST_NO_SIGNAL   0x00000002
 735 #define V4L2_IN_ST_NO_COLOR    0x00000004
 736
 737 /* field 'status' - analog */
 738 #define V4L2_IN_ST_NO_H_LOCK   0x00000100  /* No horizontal sync lock */
 739 #define V4L2_IN_ST_COLOR_KILL  0x00000200  /* Color killer is active */
 740
 741 /* field 'status' - digital */
 742 #define V4L2_IN_ST_NO_SYNC     0x00010000  /* No synchronization lock */
 743 #define V4L2_IN_ST_NO_EQU      0x00020000  /* No equalizer lock */
 744 #define V4L2_IN_ST_NO_CARRIER  0x00040000  /* Carrier recovery failed */
 745
 746 /* field 'status' - VCR and set-top box */
 747 #define V4L2_IN_ST_MACROVISION 0x01000000  /* Macrovision detected */
 748 #define V4L2_IN_ST_NO_ACCESS   0x02000000  /* Conditional access denied */
 749 #define V4L2_IN_ST_VTR         0x04000000  /* VTR time constant */
 750
 751 /*
 752  *      V I D E O   O U T P U T S
 753  */
 754 struct v4l2_output
 755 {
 756         __u32        index;             /*  Which output */
 757         __u8         name[32];          /*  Label */
 758         __u32        type;              /*  Type of output */
 759         __u32        audioset;          /*  Associated audios (bitfield) */
 760         __u32        modulator;         /*  Associated modulator */
 761         v4l2_std_id  std;
 762         __u32        reserved[4];
 763 };
 764 /*  Values for the 'type' field */
 765 #define V4L2_OUTPUT_TYPE_MODULATOR              1
 766 #define V4L2_OUTPUT_TYPE_ANALOG                 2
 767 #define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY       3
 768
 769 /*
 770  *      C O N T R O L S
 771  */
 772 struct v4l2_control
 773 {
 774         __u32                id;
 775         __s32                value;
 776 };
 777
 778 /*  Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
 779 struct v4l2_queryctrl
 780 {
 781         __u32                id;
 782         enum v4l2_ctrl_type  type;
 783         __u8                 name[32];  /* Whatever */
 784         __s32                minimum;   /* Note signedness */
 785         __s32                maximum;
 786         __s32                step;
 787         __s32                default_value;
 788         __u32                flags;
 789         __u32                reserved[2];
 790 };
 791
 792 /*  Used in the VIDIOC_QUERYMENU ioctl for querying menu items */
 793 struct v4l2_querymenu
 794 {
 795         __u32           id;
 796         __u32           index;
 797         __u8            name[32];       /* Whatever */
 798         __u32           reserved;
 799 };
 800
 801 /*  Control flags  */
 802 #define V4L2_CTRL_FLAG_DISABLED         0x0001
 803 #define V4L2_CTRL_FLAG_GRABBED          0x0002
 804
 805 /*  Control IDs defined by V4L2 */
 806 #define V4L2_CID_BASE                   0x00980900
 807 /*  IDs reserved for driver specific controls */
 808 #define V4L2_CID_PRIVATE_BASE           0x08000000
 809
 810 #define V4L2_CID_BRIGHTNESS             (V4L2_CID_BASE+0)
 811 #define V4L2_CID_CONTRAST               (V4L2_CID_BASE+1)
 812 #define V4L2_CID_SATURATION             (V4L2_CID_BASE+2)
 813 #define V4L2_CID_HUE                    (V4L2_CID_BASE+3)
 814 #define V4L2_CID_AUDIO_VOLUME           (V4L2_CID_BASE+5)
 815 #define V4L2_CID_AUDIO_BALANCE          (V4L2_CID_BASE+6)
 816 #define V4L2_CID_AUDIO_BASS             (V4L2_CID_BASE+7)
 817 #define V4L2_CID_AUDIO_TREBLE           (V4L2_CID_BASE+8)
 818 #define V4L2_CID_AUDIO_MUTE             (V4L2_CID_BASE+9)
 819 #define V4L2_CID_AUDIO_LOUDNESS         (V4L2_CID_BASE+10)
 820 #define V4L2_CID_BLACK_LEVEL            (V4L2_CID_BASE+11)
 821 #define V4L2_CID_AUTO_WHITE_BALANCE     (V4L2_CID_BASE+12)
 822 #define V4L2_CID_DO_WHITE_BALANCE       (V4L2_CID_BASE+13)
 823 #define V4L2_CID_RED_BALANCE            (V4L2_CID_BASE+14)
 824 #define V4L2_CID_BLUE_BALANCE           (V4L2_CID_BASE+15)
 825 #define V4L2_CID_GAMMA                  (V4L2_CID_BASE+16)
 826 #define V4L2_CID_WHITENESS              (V4L2_CID_GAMMA) /* ? Not sure */
 827 #define V4L2_CID_EXPOSURE               (V4L2_CID_BASE+17)
 828 #define V4L2_CID_AUTOGAIN               (V4L2_CID_BASE+18)
 829 #define V4L2_CID_GAIN                   (V4L2_CID_BASE+19)
 830 #define V4L2_CID_HFLIP                  (V4L2_CID_BASE+20)
 831 #define V4L2_CID_VFLIP                  (V4L2_CID_BASE+21)
 832 #define V4L2_CID_HCENTER                (V4L2_CID_BASE+22)
 833 #define V4L2_CID_VCENTER                (V4L2_CID_BASE+23)
 834 #define V4L2_CID_LASTP1                 (V4L2_CID_BASE+24) /* last CID + 1 */
 835
 836 /*
 837  *      T U N I N G
 838  */
 839 struct v4l2_tuner
 840 {
 841         __u32                   index;
 842         __u8                    name[32];
 843         enum v4l2_tuner_type    type;
 844         __u32                   capability;
 845         __u32                   rangelow;
 846         __u32                   rangehigh;
 847         __u32                   rxsubchans;
 848         __u32                   audmode;
 849         __s32                   signal;
 850         __s32                   afc;
 851         __u32                   reserved[4];
 852 };
 853
 854 struct v4l2_modulator
 855 {
 856         __u32                   index;
 857         __u8                    name[32];
 858         __u32                   capability;
 859         __u32                   rangelow;
 860         __u32                   rangehigh;
 861         __u32                   txsubchans;
 862         __u32                   reserved[4];
 863 };
 864
 865 /*  Flags for the 'capability' field */
 866 #define V4L2_TUNER_CAP_LOW              0x0001
 867 #define V4L2_TUNER_CAP_NORM             0x0002
 868 #define V4L2_TUNER_CAP_STEREO           0x0010
 869 #define V4L2_TUNER_CAP_LANG2            0x0020
 870 #define V4L2_TUNER_CAP_SAP              0x0020
 871 #define V4L2_TUNER_CAP_LANG1            0x0040
 872
 873 /*  Flags for the 'rxsubchans' field */
 874 #define V4L2_TUNER_SUB_MONO             0x0001
 875 #define V4L2_TUNER_SUB_STEREO           0x0002
 876 #define V4L2_TUNER_SUB_LANG2            0x0004
 877 #define V4L2_TUNER_SUB_SAP              0x0004
 878 #define V4L2_TUNER_SUB_LANG1            0x0008
 879
 880 /*  Values for the 'audmode' field */
 881 #define V4L2_TUNER_MODE_MONO            0x0000
 882 #define V4L2_TUNER_MODE_STEREO          0x0001
 883 #define V4L2_TUNER_MODE_LANG2           0x0002
 884 #define V4L2_TUNER_MODE_SAP             0x0002
 885 #define V4L2_TUNER_MODE_LANG1           0x0003
 886 #define V4L2_TUNER_MODE_LANG1_LANG2     0x0004
 887
 888 struct v4l2_frequency
 889 {
 890         __u32                 tuner;
 891         enum v4l2_tuner_type  type;
 892         __u32                 frequency;
 893         __u32                 reserved[8];
 894 };
 895
 896 /*
 897  *      A U D I O
 898  */
 899 struct v4l2_audio
 900 {
 901         __u32   index;
 902         __u8    name[32];
 903         __u32   capability;
 904         __u32   mode;
 905         __u32   reserved[2];
 906 };
 907 /*  Flags for the 'capability' field */
 908 #define V4L2_AUDCAP_STEREO              0x00001
 909 #define V4L2_AUDCAP_AVL                 0x00002
 910
 911 /*  Flags for the 'mode' field */
 912 #define V4L2_AUDMODE_AVL                0x00001
 913
 914 struct v4l2_audioout
 915 {
 916         __u32   index;
 917         __u8    name[32];
 918         __u32   capability;
 919         __u32   mode;
 920         __u32   reserved[2];
 921 };
 922
 923 /*
 924  *      D A T A   S E R V I C E S   ( V B I )
 925  *
 926  *      Data services API by Michael Schimek
 927  */
 928
 929 /* Raw VBI */
 930
 931 struct v4l2_vbi_format
 932 {
 933         __u32   sampling_rate;          /* in 1 Hz */
 934         __u32   offset;
 935         __u32   samples_per_line;
 936         __u32   sample_format;          /* V4L2_PIX_FMT_* */
 937         __s32   start[2];
 938         __u32   count[2];
 939         __u32   flags;                  /* V4L2_VBI_* */
 940         __u32   reserved[2];            /* must be zero */
 941 };
 942
 943 /*  VBI flags  */
 944 #define V4L2_VBI_UNSYNC         (1<< 0)
 945 #define V4L2_VBI_INTERLACED     (1<< 1)
 946
 947 #if 1
 948 /* Sliced VBI
 949  *
 950  *    This implements is a proposal V4L2 API to allow SLICED VBI
 951  * required for some hardware encoders. It should change without
 952  * notice in the definitive implementation.
 953  */
 954
 955 struct v4l2_sliced_vbi_format
 956 {
 957         __u16   service_set;
 958         /* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
 959            service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
 960                                  (equals frame lines 313-336 for 625 line video
 961                                   standards, 263-286 for 525 line standards) */
 962         __u16   service_lines[2][24];
 963         __u32   io_size;
 964         __u32   reserved[2];            /* must be zero */
 965 };
 966
 967 /* Teletext World System Teletext
 968    (WST), defined on ITU-R BT.653-2 */
 969 #define V4L2_SLICED_TELETEXT_B          (0x0001)
 970 /* Video Program System, defined on ETS 300 231*/
 971 #define V4L2_SLICED_VPS                 (0x0400)
 972 /* Closed Caption, defined on EIA-608 */
 973 #define V4L2_SLICED_CAPTION_525         (0x1000)
 974 /* Wide Screen System, defined on ITU-R BT1119.1 */
 975 #define V4L2_SLICED_WSS_625             (0x4000)
 976
 977 #define V4L2_SLICED_VBI_525             (V4L2_SLICED_CAPTION_525)
 978 #define V4L2_SLICED_VBI_625             (V4L2_SLICED_TELETEXT_B | V4L2_SLICED_VPS | V4L2_SLICED_WSS_625)
 979
 980
 981 struct v4l2_sliced_vbi_cap
 982 {
 983         __u16   service_set;
 984         /* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
 985            service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
 986                                  (equals frame lines 313-336 for 625 line video
 987                                   standards, 263-286 for 525 line standards) */
 988         __u16   service_lines[2][24];
 989         __u32   reserved[4];    /* must be 0 */
 990 };
 991
 992 struct v4l2_sliced_vbi_data
 993 {
 994         __u32   id;
 995         __u32   field;          /* 0: first field, 1: second field */
 996         __u32   line;           /* 1-23 */
 997         __u32   reserved;       /* must be 0 */
 998         __u8    data[48];
 999 };
1000 #endif
1001
1002 /*
1003  *      A G G R E G A T E   S T R U C T U R E S
1004  */
1005
1006 /*      Stream data format
1007  */
1008 struct v4l2_format
1009 {
1010         enum v4l2_buf_type type;
1011         union
1012         {
1013                 struct v4l2_pix_format          pix;     // V4L2_BUF_TYPE_VIDEO_CAPTURE
1014                 struct v4l2_window              win;     // V4L2_BUF_TYPE_VIDEO_OVERLAY
1015                 struct v4l2_vbi_format          vbi;     // V4L2_BUF_TYPE_VBI_CAPTURE
1016 #if 1
1017                 struct v4l2_sliced_vbi_format   sliced;  // V4L2_BUF_TYPE_SLICED_VBI_CAPTURE
1018 #endif
1019                 __u8    raw_data[200];                   // user-defined
1020         } fmt;
1021 };
1022
1023
1024 /*      Stream type-dependent parameters
1025  */
1026 struct v4l2_streamparm
1027 {
1028         enum v4l2_buf_type type;
1029         union
1030         {
1031                 struct v4l2_captureparm capture;
1032                 struct v4l2_outputparm  output;
1033                 __u8    raw_data[200];  /* user-defined */
1034         } parm;
1035 };
1036
1037
1038
1039 /*
1040  *      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
1041  *
1042  */
1043 #define VIDIOC_QUERYCAP         _IOR  ('V',  0, struct v4l2_capability)
1044 #define VIDIOC_RESERVED         _IO   ('V',  1)
1045 #define VIDIOC_ENUM_FMT         _IOWR ('V',  2, struct v4l2_fmtdesc)
1046 #define VIDIOC_G_FMT            _IOWR ('V',  4, struct v4l2_format)
1047 #define VIDIOC_S_FMT            _IOWR ('V',  5, struct v4l2_format)
1048 #define VIDIOC_G_MPEGCOMP       _IOR  ('V',  6, struct v4l2_mpeg_compression)
1049 #define VIDIOC_S_MPEGCOMP       _IOW  ('V',  7, struct v4l2_mpeg_compression)
1050 #define VIDIOC_REQBUFS          _IOWR ('V',  8, struct v4l2_requestbuffers)
1051 #define VIDIOC_QUERYBUF         _IOWR ('V',  9, struct v4l2_buffer)
1052 #define VIDIOC_G_FBUF           _IOR  ('V', 10, struct v4l2_framebuffer)
1053 #define VIDIOC_S_FBUF           _IOW  ('V', 11, struct v4l2_framebuffer)
1054 #define VIDIOC_OVERLAY          _IOW  ('V', 14, int)
1055 #define VIDIOC_QBUF             _IOWR ('V', 15, struct v4l2_buffer)
1056 #define VIDIOC_DQBUF            _IOWR ('V', 17, struct v4l2_buffer)
1057 #define VIDIOC_STREAMON         _IOW  ('V', 18, int)
1058 #define VIDIOC_STREAMOFF        _IOW  ('V', 19, int)
1059 #define VIDIOC_G_PARM           _IOWR ('V', 21, struct v4l2_streamparm)
1060 #define VIDIOC_S_PARM           _IOWR ('V', 22, struct v4l2_streamparm)
1061 #define VIDIOC_G_STD            _IOR  ('V', 23, v4l2_std_id)
1062 #define VIDIOC_S_STD            _IOW  ('V', 24, v4l2_std_id)
1063 #define VIDIOC_ENUMSTD          _IOWR ('V', 25, struct v4l2_standard)
1064 #define VIDIOC_ENUMINPUT        _IOWR ('V', 26, struct v4l2_input)
1065 #define VIDIOC_G_CTRL           _IOWR ('V', 27, struct v4l2_control)
1066 #define VIDIOC_S_CTRL           _IOWR ('V', 28, struct v4l2_control)
1067 #define VIDIOC_G_TUNER          _IOWR ('V', 29, struct v4l2_tuner)
1068 #define VIDIOC_S_TUNER          _IOW  ('V', 30, struct v4l2_tuner)
1069 #define VIDIOC_G_AUDIO          _IOR  ('V', 33, struct v4l2_audio)
1070 #define VIDIOC_S_AUDIO          _IOW  ('V', 34, struct v4l2_audio)
1071 #define VIDIOC_QUERYCTRL        _IOWR ('V', 36, struct v4l2_queryctrl)
1072 #define VIDIOC_QUERYMENU        _IOWR ('V', 37, struct v4l2_querymenu)
1073 #define VIDIOC_G_INPUT          _IOR  ('V', 38, int)
1074 #define VIDIOC_S_INPUT          _IOWR ('V', 39, int)
1075 #define VIDIOC_G_OUTPUT         _IOR  ('V', 46, int)
1076 #define VIDIOC_S_OUTPUT         _IOWR ('V', 47, int)
1077 #define VIDIOC_ENUMOUTPUT       _IOWR ('V', 48, struct v4l2_output)
1078 #define VIDIOC_G_AUDOUT         _IOR  ('V', 49, struct v4l2_audioout)
1079 #define VIDIOC_S_AUDOUT         _IOW  ('V', 50, struct v4l2_audioout)
1080 #define VIDIOC_G_MODULATOR      _IOWR ('V', 54, struct v4l2_modulator)
1081 #define VIDIOC_S_MODULATOR      _IOW  ('V', 55, struct v4l2_modulator)
1082 #define VIDIOC_G_FREQUENCY      _IOWR ('V', 56, struct v4l2_frequency)
1083 #define VIDIOC_S_FREQUENCY      _IOW  ('V', 57, struct v4l2_frequency)
1084 #define VIDIOC_CROPCAP          _IOWR ('V', 58, struct v4l2_cropcap)
1085 #define VIDIOC_G_CROP           _IOWR ('V', 59, struct v4l2_crop)
1086 #define VIDIOC_S_CROP           _IOW  ('V', 60, struct v4l2_crop)
1087 #define VIDIOC_G_JPEGCOMP       _IOR  ('V', 61, struct v4l2_jpegcompression)
1088 #define VIDIOC_S_JPEGCOMP       _IOW  ('V', 62, struct v4l2_jpegcompression)
1089 #define VIDIOC_QUERYSTD         _IOR  ('V', 63, v4l2_std_id)
1090 #define VIDIOC_TRY_FMT          _IOWR ('V', 64, struct v4l2_format)
1091 #define VIDIOC_ENUMAUDIO        _IOWR ('V', 65, struct v4l2_audio)
1092 #define VIDIOC_ENUMAUDOUT       _IOWR ('V', 66, struct v4l2_audioout)
1093 #define VIDIOC_G_PRIORITY       _IOR  ('V', 67, enum v4l2_priority)
1094 #define VIDIOC_S_PRIORITY       _IOW  ('V', 68, enum v4l2_priority)
1095 #if 1
1096 #define VIDIOC_G_SLICED_VBI_CAP _IOR  ('V', 69, struct v4l2_sliced_vbi_cap)
1097 #endif
1098 #define VIDIOC_LOG_STATUS       _IO   ('V', 70)
1099
1100 /* for compatibility, will go away some day */
1101 #define VIDIOC_OVERLAY_OLD      _IOWR ('V', 14, int)
1102 #define VIDIOC_S_PARM_OLD       _IOW  ('V', 22, struct v4l2_streamparm)
1103 #define VIDIOC_S_CTRL_OLD       _IOW  ('V', 28, struct v4l2_control)
1104 #define VIDIOC_G_AUDIO_OLD      _IOWR ('V', 33, struct v4l2_audio)
1105 #define VIDIOC_G_AUDOUT_OLD     _IOWR ('V', 49, struct v4l2_audioout)
1106 #define VIDIOC_CROPCAP_OLD      _IOR  ('V', 58, struct v4l2_cropcap)
1107
1108 #define BASE_VIDIOC_PRIVATE     192             /* 192-255 are private */
1109
1110
1111 #ifdef __KERNEL__
1112 /*
1113  *
1114  *      V 4 L 2   D R I V E R   H E L P E R   A P I
1115  *
1116  *      Some commonly needed functions for drivers (v4l2-common.o module)
1117  */
1118 #include <linux/fs.h>
1119
1120 /*  Video standard functions  */
1121 extern unsigned int v4l2_video_std_fps(struct v4l2_standard *vs);
1122 extern int v4l2_video_std_construct(struct v4l2_standard *vs,
1123                                     int id, char *name);
1124
1125 /* prority handling */
1126 struct v4l2_prio_state {
1127         atomic_t prios[4];
1128 };
1129 int v4l2_prio_init(struct v4l2_prio_state *global);
1130 int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local,
1131                      enum v4l2_priority new);
1132 int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local);
1133 int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local);
1134 enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global);
1135 int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local);
1136
1137 /* names for fancy debug output */
1138 extern char *v4l2_field_names[];
1139 extern char *v4l2_type_names[];
1140
1141 /*  Compatibility layer interface  --  v4l1-compat module */
1142 typedef int (*v4l2_kioctl)(struct inode *inode, struct file *file,
1143                            unsigned int cmd, void *arg);
1144
1145 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1146 int v4l_compat_translate_ioctl(struct inode *inode, struct file *file,
1147                                int cmd, void *arg, v4l2_kioctl driver_ioctl);
1148 #else
1149 #define v4l_compat_translate_ioctl(inode,file,cmd,arg,ioctl) -EINVAL
1150 #endif
1151
1152 /* 32 Bits compatibility layer for 64 bits processors */
1153 extern long v4l_compat_ioctl32(struct file *file, unsigned int cmd,
1154                                 unsigned long arg);
1155
1156
1157 #endif /* __KERNEL__ */
1158 #endif /* __LINUX_VIDEODEV2_H */
1159
1160 /*
1161  * Local variables:
1162  * c-basic-offset: 8
1163  * End:
1164  */