RobotFlow: Devices/include/videodev2.h Source File

00001 #ifndef __LINUX_VIDEODEV2_H
00002 #define __LINUX_VIDEODEV2_H
00003 /*
00004  *      Video for Linux Two
00005  *
00006  *      Header file for v4l or V4L2 drivers and applications, for
00007  *      Linux kernels 2.2.x or 2.4.x.
00008  *
00009  *      See http://bytesex.org/v4l/ for API specs and other
00010  *      v4l2 documentation.
00011  *
00012  *      Author: Bill Dirks <bdirks@pacbell.net>
00013  *              Justin Schoeman
00014  *              et al.
00015  */
00016 #ifdef __KERNEL__
00017 #include <linux/time.h> /* need struct timeval */
00018 #endif
00019 
00020 #include "videodevfix.h"
00021 
00022 /*
00023  *      M I S C E L L A N E O U S
00024  */
00025 
00026 /*  Four-character-code (FOURCC) */
00027 #define v4l2_fourcc(a,b,c,d)\
00028         (((__u32)(a)<<0)|((__u32)(b)<<8)|((__u32)(c)<<16)|((__u32)(d)<<24))
00029 
00030 /*
00031  *      E N U M S
00032  */
00033 enum v4l2_field {
00034         V4L2_FIELD_ANY        = 0, /* driver can choose from none,
00035                                       top, bottom, interlaced
00036                                       depending on whatever it thinks
00037                                       is approximate ... */
00038         V4L2_FIELD_NONE       = 1, /* this device has no fields ... */
00039         V4L2_FIELD_TOP        = 2, /* top field only */
00040         V4L2_FIELD_BOTTOM     = 3, /* bottom field only */
00041         V4L2_FIELD_INTERLACED = 4, /* both fields interlaced */
00042         V4L2_FIELD_SEQ_TB     = 5, /* both fields sequential into one
00043                                       buffer, top-bottom order */
00044         V4L2_FIELD_SEQ_BT     = 6, /* same as above + bottom-top order */
00045         V4L2_FIELD_ALTERNATE  = 7, /* both fields alternating into
00046                                       separate buffers */
00047 };
00048 #define V4L2_FIELD_HAS_TOP(field)       \
00049         ((field) == V4L2_FIELD_TOP      ||\
00050          (field) == V4L2_FIELD_INTERLACED ||\
00051          (field) == V4L2_FIELD_SEQ_TB   ||\
00052          (field) == V4L2_FIELD_SEQ_BT)
00053 #define V4L2_FIELD_HAS_BOTTOM(field)    \
00054         ((field) == V4L2_FIELD_BOTTOM   ||\
00055          (field) == V4L2_FIELD_INTERLACED ||\
00056          (field) == V4L2_FIELD_SEQ_TB   ||\
00057          (field) == V4L2_FIELD_SEQ_BT)
00058 #define V4L2_FIELD_HAS_BOTH(field)      \
00059         ((field) == V4L2_FIELD_INTERLACED ||\
00060          (field) == V4L2_FIELD_SEQ_TB   ||\
00061          (field) == V4L2_FIELD_SEQ_BT)
00062 
00063 enum v4l2_buf_type {
00064         V4L2_BUF_TYPE_VIDEO_CAPTURE  = 1,
00065         V4L2_BUF_TYPE_VIDEO_OUTPUT   = 2,
00066         V4L2_BUF_TYPE_VIDEO_OVERLAY  = 3,
00067         V4L2_BUF_TYPE_VBI_CAPTURE    = 4,
00068         V4L2_BUF_TYPE_VBI_OUTPUT     = 5,
00069         V4L2_BUF_TYPE_PRIVATE        = 0x80,
00070 };
00071 
00072 enum v4l2_ctrl_type {
00073         V4L2_CTRL_TYPE_INTEGER       = 1,
00074         V4L2_CTRL_TYPE_BOOLEAN       = 2,
00075         V4L2_CTRL_TYPE_MENU          = 3,
00076         V4L2_CTRL_TYPE_BUTTON        = 4,
00077 };
00078 
00079 enum v4l2_tuner_type {
00080         V4L2_TUNER_RADIO             = 1,
00081         V4L2_TUNER_ANALOG_TV         = 2,
00082 };
00083 
00084 enum v4l2_memory {
00085         V4L2_MEMORY_MMAP             = 1,
00086         V4L2_MEMORY_USERPTR          = 2,
00087         V4L2_MEMORY_OVERLAY          = 3,
00088 };
00089 
00090 /* see also http://vektor.theorem.ca/graphics/ycbcr/ */
00091 enum v4l2_colorspace {
00092         /* ITU-R 601 -- broadcast NTSC/PAL */
00093         V4L2_COLORSPACE_SMPTE170M     = 1,
00094 
00095         /* 1125-Line (US) HDTV */
00096         V4L2_COLORSPACE_SMPTE240M     = 2,
00097 
00098         /* HD and modern captures. */
00099         V4L2_COLORSPACE_REC709        = 3,
00100         
00101         /* broken BT878 extents (601, luma range 16-253 instead of 16-235) */
00102         V4L2_COLORSPACE_BT878         = 4,
00103         
00104         /* These should be useful.  Assume 601 extents. */
00105         V4L2_COLORSPACE_470_SYSTEM_M  = 5,
00106         V4L2_COLORSPACE_470_SYSTEM_BG = 6,
00107         
00108         /* I know there will be cameras that send this.  So, this is
00109          * unspecified chromaticities and full 0-255 on each of the
00110          * Y'CbCr components
00111          */
00112         V4L2_COLORSPACE_JPEG          = 7,
00113         
00114         /* For RGB colourspaces, this is probably a good start. */
00115         V4L2_COLORSPACE_SRGB          = 8,
00116 };
00117 
00118 enum v4l2_priority {
00119         V4L2_PRIORITY_UNSET       = 0,  /* not initialized */
00120         V4L2_PRIORITY_BACKGROUND  = 1,
00121         V4L2_PRIORITY_INTERACTIVE = 2,
00122         V4L2_PRIORITY_RECORD      = 3,
00123         V4L2_PRIORITY_DEFAULT     = V4L2_PRIORITY_INTERACTIVE,
00124 };
00125 
00126 struct v4l2_rect {
00127         __s32   left;
00128         __s32   top;
00129         __s32   width;
00130         __s32   height;
00131 };
00132 
00133 struct v4l2_fract {
00134         __u32   numerator;
00135         __u32   denominator;
00136 };
00137 
00138 /*
00139  *      D R I V E R   C A P A B I L I T I E S
00140  */
00141 struct v4l2_capability
00142 {
00143         __u8    driver[16];     /* i.e. "bttv" */
00144         __u8    card[32];       /* i.e. "Hauppauge WinTV" */
00145         __u8    bus_info[32];   /* "PCI:" + pci_name(pci_dev) */
00146         __u32   version;        /* should use KERNEL_VERSION() */
00147         __u32   capabilities;   /* Device capabilities */
00148         __u32   reserved[4];
00149 };
00150 
00151 /* Values for 'capabilities' field */
00152 #define V4L2_CAP_VIDEO_CAPTURE  0x00000001  /* Is a video capture device */
00153 #define V4L2_CAP_VIDEO_OUTPUT   0x00000002  /* Is a video output device */
00154 #define V4L2_CAP_VIDEO_OVERLAY  0x00000004  /* Can do video overlay */
00155 #define V4L2_CAP_VBI_CAPTURE    0x00000010  /* Is a VBI capture device */
00156 #define V4L2_CAP_VBI_OUTPUT     0x00000020  /* Is a VBI output device */
00157 #define V4L2_CAP_RDS_CAPTURE    0x00000100  /* RDS data capture */
00158 
00159 #define V4L2_CAP_TUNER          0x00010000  /* has a tuner */
00160 #define V4L2_CAP_AUDIO          0x00020000  /* has audio support */
00161 #define V4L2_CAP_RADIO          0x00040000  /* is a radio device */
00162 
00163 #define V4L2_CAP_READWRITE      0x01000000  /* read/write systemcalls */
00164 #define V4L2_CAP_ASYNCIO        0x02000000  /* async I/O */
00165 #define V4L2_CAP_STREAMING      0x04000000  /* streaming I/O ioctls */
00166 
00167 /*
00168  *      V I D E O   I M A G E   F O R M A T
00169  */
00170 
00171 struct v4l2_pix_format
00172 {
00173         __u32                   width;
00174         __u32                   height;
00175         __u32                   pixelformat;
00176         enum v4l2_field         field;
00177         __u32                   bytesperline;   /* for padding, zero if unused */
00178         __u32                   sizeimage;
00179         enum v4l2_colorspace    colorspace;
00180         __u32                   priv;           /* private data, depends on pixelformat */
00181 };
00182 
00183 /*           Pixel format    FOURCC                  depth  Description   */
00184 #define V4L2_PIX_FMT_RGB332  v4l2_fourcc('R','G','B','1') /*  8  RGB-3-3-2     */
00185 #define V4L2_PIX_FMT_RGB555  v4l2_fourcc('R','G','B','O') /* 16  RGB-5-5-5     */
00186 #define V4L2_PIX_FMT_RGB565  v4l2_fourcc('R','G','B','P') /* 16  RGB-5-6-5     */
00187 #define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R','G','B','Q') /* 16  RGB-5-5-5 BE  */
00188 #define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R','G','B','R') /* 16  RGB-5-6-5 BE  */
00189 #define V4L2_PIX_FMT_BGR24   v4l2_fourcc('B','G','R','3') /* 24  BGR-8-8-8     */
00190 #define V4L2_PIX_FMT_RGB24   v4l2_fourcc('R','G','B','3') /* 24  RGB-8-8-8     */
00191 #define V4L2_PIX_FMT_BGR32   v4l2_fourcc('B','G','R','4') /* 32  BGR-8-8-8-8   */
00192 #define V4L2_PIX_FMT_RGB32   v4l2_fourcc('R','G','B','4') /* 32  RGB-8-8-8-8   */
00193 #define V4L2_PIX_FMT_GREY    v4l2_fourcc('G','R','E','Y') /*  8  Greyscale     */
00194 #define V4L2_PIX_FMT_YVU410  v4l2_fourcc('Y','V','U','9') /*  9  YVU 4:1:0     */
00195 #define V4L2_PIX_FMT_YVU420  v4l2_fourcc('Y','V','1','2') /* 12  YVU 4:2:0     */
00196 #define V4L2_PIX_FMT_YUYV    v4l2_fourcc('Y','U','Y','V') /* 16  YUV 4:2:2     */
00197 #define V4L2_PIX_FMT_UYVY    v4l2_fourcc('U','Y','V','Y') /* 16  YUV 4:2:2     */
00198 #define V4L2_PIX_FMT_YUV422P v4l2_fourcc('4','2','2','P') /* 16  YVU422 planar */
00199 #define V4L2_PIX_FMT_YUV411P v4l2_fourcc('4','1','1','P') /* 16  YVU411 planar */
00200 #define V4L2_PIX_FMT_Y41P    v4l2_fourcc('Y','4','1','P') /* 12  YUV 4:1:1     */
00201 
00202 /* two planes -- one Y, one Cr + Cb interleaved  */
00203 #define V4L2_PIX_FMT_NV12    v4l2_fourcc('N','V','1','2') /* 12  Y/CbCr 4:2:0  */
00204 #define V4L2_PIX_FMT_NV21    v4l2_fourcc('N','V','2','1') /* 12  Y/CrCb 4:2:0  */
00205 
00206 /*  The following formats are not defined in the V4L2 specification */
00207 #define V4L2_PIX_FMT_YUV410  v4l2_fourcc('Y','U','V','9') /*  9  YUV 4:1:0     */
00208 #define V4L2_PIX_FMT_YUV420  v4l2_fourcc('Y','U','1','2') /* 12  YUV 4:2:0     */
00209 #define V4L2_PIX_FMT_YYUV    v4l2_fourcc('Y','Y','U','V') /* 16  YUV 4:2:2     */
00210 #define V4L2_PIX_FMT_HI240   v4l2_fourcc('H','I','2','4') /*  8  8-bit color   */
00211 
00212 /* compressed formats */
00213 #define V4L2_PIX_FMT_MJPEG    v4l2_fourcc('M','J','P','G') /* Motion-JPEG   */
00214 #define V4L2_PIX_FMT_JPEG     v4l2_fourcc('J','P','E','G') /* JFIF JPEG     */
00215 #define V4L2_PIX_FMT_DV       v4l2_fourcc('d','v','s','d') /* 1394          */
00216 #define V4L2_PIX_FMT_MPEG     v4l2_fourcc('M','P','E','G') /* MPEG          */
00217 
00218 /*  Vendor-specific formats   */
00219 #define V4L2_PIX_FMT_WNVA     v4l2_fourcc('W','N','V','A') /* Winnov hw compress */
00220 
00221 /*
00222  *      F O R M A T   E N U M E R A T I O N
00223  */
00224 struct v4l2_fmtdesc
00225 {
00226         __u32               index;             /* Format number      */
00227         enum v4l2_buf_type  type;              /* buffer type        */
00228         __u32               flags;
00229         __u8                description[32];   /* Description string */
00230         __u32               pixelformat;       /* Format fourcc      */
00231         __u32               reserved[4];
00232 };
00233 
00234 #define V4L2_FMT_FLAG_COMPRESSED 0x0001
00235 
00236 
00237 /*
00238  *      T I M E C O D E
00239  */
00240 struct v4l2_timecode
00241 {
00242         __u32   type;
00243         __u32   flags;
00244         __u8    frames;
00245         __u8    seconds;
00246         __u8    minutes;
00247         __u8    hours;
00248         __u8    userbits[4];
00249 };
00250 
00251 /*  Type  */
00252 #define V4L2_TC_TYPE_24FPS              1
00253 #define V4L2_TC_TYPE_25FPS              2
00254 #define V4L2_TC_TYPE_30FPS              3
00255 #define V4L2_TC_TYPE_50FPS              4
00256 #define V4L2_TC_TYPE_60FPS              5
00257 
00258 /*  Flags  */
00259 #define V4L2_TC_FLAG_DROPFRAME          0x0001 /* "drop-frame" mode */
00260 #define V4L2_TC_FLAG_COLORFRAME         0x0002
00261 #define V4L2_TC_USERBITS_field          0x000C
00262 #define V4L2_TC_USERBITS_USERDEFINED    0x0000
00263 #define V4L2_TC_USERBITS_8BITCHARS      0x0008
00264 /* The above is based on SMPTE timecodes */
00265 
00266 
00267 /*
00268  *      C O M P R E S S I O N   P A R A M E T E R S
00269  */
00270 #if 0
00271 /* ### generic compression settings don't work, there is too much
00272  * ### codec-specific stuff.  Maybe reuse that for MPEG codec settings
00273  * ### later ... */
00274 struct v4l2_compression
00275 {
00276         __u32   quality;
00277         __u32   keyframerate;
00278         __u32   pframerate;
00279         __u32   reserved[5];
00280 
00281 /*  what we'll need for MPEG, extracted from some postings on
00282     the v4l list (Gert Vervoort, PlasmaJohn).
00283 
00284 system stream:
00285   - type: elementary stream(ES), packatised elementary stream(s) (PES)
00286     program stream(PS), transport stream(TS)
00287   - system bitrate
00288   - PS packet size (DVD: 2048 bytes, VCD: 2324 bytes)
00289   - TS video PID
00290   - TS audio PID
00291   - TS PCR PID
00292   - TS system information tables (PAT, PMT, CAT, NIT and SIT)
00293   - (MPEG-1 systems stream vs. MPEG-2 program stream (TS not supported
00294     by MPEG-1 systems)
00295 
00296 audio:
00297   - type: MPEG (+Layer I,II,III), AC-3, LPCM
00298   - bitrate
00299   - sampling frequency (DVD: 48 Khz, VCD: 44.1 KHz, 32 kHz)
00300   - Trick Modes? (ff, rew)
00301   - Copyright
00302   - Inverse Telecine
00303 
00304 video:
00305   - picturesize (SIF, 1/2 D1, 2/3 D1, D1) and PAL/NTSC norm can be set
00306     through excisting V4L2 controls
00307   - noise reduction, parameters encoder specific?
00308   - MPEG video version: MPEG-1, MPEG-2
00309   - GOP (Group Of Pictures) definition:
00310     - N: number of frames per GOP
00311     - M: distance between reference (I,P) frames
00312     - open/closed GOP
00313   - quantiser matrix: inter Q matrix (64 bytes) and intra Q matrix (64 bytes)
00314   - quantiser scale: linear or logarithmic
00315   - scanning: alternate or zigzag
00316   - bitrate mode: CBR (constant bitrate) or VBR (variable bitrate).
00317   - target video bitrate for CBR
00318   - target video bitrate for VBR
00319   - maximum video bitrate for VBR - min. quantiser value for VBR
00320   - max. quantiser value for VBR
00321   - adaptive quantisation value
00322   - return the number of bytes per GOP or bitrate for bitrate monitoring
00323 
00324 */
00325 };
00326 #endif
00327 
00328 struct v4l2_jpegcompression
00329 {
00330         int quality;
00331 
00332         int  APPn;              /* Number of APP segment to be written,
00333                                  * must be 0..15 */
00334         int  APP_len;           /* Length of data in JPEG APPn segment */
00335         char APP_data[60];      /* Data in the JPEG APPn segment. */
00336         
00337         int  COM_len;           /* Length of data in JPEG COM segment */
00338         char COM_data[60];      /* Data in JPEG COM segment */
00339         
00340         __u32 jpeg_markers;     /* Which markers should go into the JPEG
00341                                  * output. Unless you exactly know what
00342                                  * you do, leave them untouched.
00343                                  * Inluding less markers will make the
00344                                  * resulting code smaller, but there will
00345                                  * be fewer aplications which can read it.
00346                                  * The presence of the APP and COM marker
00347                                  * is influenced by APP_len and COM_len
00348                                  * ONLY, not by this property! */
00349         
00350 #define V4L2_JPEG_MARKER_DHT (1<<3)    /* Define Huffman Tables */
00351 #define V4L2_JPEG_MARKER_DQT (1<<4)    /* Define Quantization Tables */
00352 #define V4L2_JPEG_MARKER_DRI (1<<5)    /* Define Restart Interval */
00353 #define V4L2_JPEG_MARKER_COM (1<<6)    /* Comment segment */
00354 #define V4L2_JPEG_MARKER_APP (1<<7)    /* App segment, driver will
00355                                         * allways use APP0 */
00356 };
00357 
00358 
00359 /*
00360  *      M E M O R Y - M A P P I N G   B U F F E R S
00361  */
00362 struct v4l2_requestbuffers
00363 {
00364         __u32                   count;
00365         enum v4l2_buf_type      type;
00366         enum v4l2_memory        memory;
00367         __u32                   reserved[2];
00368 };
00369 
00370 struct v4l2_buffer
00371 {
00372         __u32                   index;
00373         enum v4l2_buf_type      type;
00374         __u32                   bytesused;
00375         __u32                   flags;
00376         enum v4l2_field         field;
00377         struct timeval          timestamp;
00378         struct v4l2_timecode    timecode;
00379         __u32                   sequence;
00380 
00381         /* memory location */
00382         enum v4l2_memory        memory;
00383         union {
00384                 __u32           offset;
00385                 unsigned long   userptr;
00386         } m;
00387         __u32                   length;
00388 
00389         __u32                   reserved[2];
00390 };
00391 
00392 /*  Flags for 'flags' field */
00393 #define V4L2_BUF_FLAG_MAPPED    0x0001  /* Buffer is mapped (flag) */
00394 #define V4L2_BUF_FLAG_QUEUED    0x0002  /* Buffer is queued for processing */
00395 #define V4L2_BUF_FLAG_DONE      0x0004  /* Buffer is ready */
00396 #define V4L2_BUF_FLAG_KEYFRAME  0x0008  /* Image is a keyframe (I-frame) */
00397 #define V4L2_BUF_FLAG_PFRAME    0x0010  /* Image is a P-frame */
00398 #define V4L2_BUF_FLAG_BFRAME    0x0020  /* Image is a B-frame */
00399 #define V4L2_BUF_FLAG_TIMECODE  0x0100  /* timecode field is valid */
00400 
00401 /*
00402  *      O V E R L A Y   P R E V I E W
00403  */
00404 struct v4l2_framebuffer
00405 {
00406         __u32                   capability;
00407         __u32                   flags;
00408 /* FIXME: in theory we should pass something like PCI device + memory
00409  * region + offset instead of some physical address */
00410         void*                   base;
00411         struct v4l2_pix_format  fmt;
00412 };
00413 /*  Flags for the 'capability' field. Read only */
00414 #define V4L2_FBUF_CAP_EXTERNOVERLAY     0x0001
00415 #define V4L2_FBUF_CAP_CHROMAKEY         0x0002
00416 #define V4L2_FBUF_CAP_LIST_CLIPPING     0x0004
00417 #define V4L2_FBUF_CAP_BITMAP_CLIPPING   0x0008
00418 /*  Flags for the 'flags' field. */
00419 #define V4L2_FBUF_FLAG_PRIMARY          0x0001
00420 #define V4L2_FBUF_FLAG_OVERLAY          0x0002
00421 #define V4L2_FBUF_FLAG_CHROMAKEY        0x0004
00422 
00423 struct v4l2_clip
00424 {
00425         struct v4l2_rect        c;
00426         struct v4l2_clip        *next;
00427 };
00428 
00429 struct v4l2_window
00430 {
00431         struct v4l2_rect        w;
00432         enum v4l2_field         field;
00433         __u32                   chromakey;
00434         struct v4l2_clip        *clips;
00435         __u32                   clipcount;
00436         void                    *bitmap;
00437 };
00438 
00439 
00440 /*
00441  *      C A P T U R E   P A R A M E T E R S
00442  */
00443 struct v4l2_captureparm
00444 {
00445         __u32              capability;    /*  Supported modes */
00446         __u32              capturemode;   /*  Current mode */
00447         struct v4l2_fract  timeperframe;  /*  Time per frame in .1us units */
00448         __u32              extendedmode;  /*  Driver-specific extensions */
00449         __u32              readbuffers;   /*  # of buffers for read */
00450         __u32              reserved[4];
00451 };
00452 /*  Flags for 'capability' and 'capturemode' fields */
00453 #define V4L2_MODE_HIGHQUALITY   0x0001  /*  High quality imaging mode */
00454 #define V4L2_CAP_TIMEPERFRAME   0x1000  /*  timeperframe field is supported */
00455 
00456 struct v4l2_outputparm
00457 {
00458         __u32              capability;   /*  Supported modes */
00459         __u32              outputmode;   /*  Current mode */
00460         struct v4l2_fract  timeperframe; /*  Time per frame in seconds */
00461         __u32              extendedmode; /*  Driver-specific extensions */
00462         __u32              writebuffers; /*  # of buffers for write */
00463         __u32              reserved[4];
00464 };
00465 
00466 /*
00467  *      I N P U T   I M A G E   C R O P P I N G
00468  */
00469 
00470 struct v4l2_cropcap {
00471         enum v4l2_buf_type      type;   
00472         struct v4l2_rect        bounds;
00473         struct v4l2_rect        defrect;
00474         struct v4l2_fract       pixelaspect;
00475 };
00476 
00477 struct v4l2_crop {
00478         enum v4l2_buf_type      type;
00479         struct v4l2_rect        c;
00480 };
00481 
00482 /*
00483  *      A N A L O G   V I D E O   S T A N D A R D
00484  */
00485 
00486 typedef __u64 v4l2_std_id;
00487 
00488 /* one bit for each */
00489 #define V4L2_STD_PAL_B          ((v4l2_std_id)0x00000001)
00490 #define V4L2_STD_PAL_B1         ((v4l2_std_id)0x00000002)
00491 #define V4L2_STD_PAL_G          ((v4l2_std_id)0x00000004)
00492 #define V4L2_STD_PAL_H          ((v4l2_std_id)0x00000008)
00493 #define V4L2_STD_PAL_I          ((v4l2_std_id)0x00000010)
00494 #define V4L2_STD_PAL_D          ((v4l2_std_id)0x00000020)
00495 #define V4L2_STD_PAL_D1         ((v4l2_std_id)0x00000040)
00496 #define V4L2_STD_PAL_K          ((v4l2_std_id)0x00000080)
00497 
00498 #define V4L2_STD_PAL_M          ((v4l2_std_id)0x00000100)
00499 #define V4L2_STD_PAL_N          ((v4l2_std_id)0x00000200)
00500 #define V4L2_STD_PAL_Nc         ((v4l2_std_id)0x00000400)
00501 #define V4L2_STD_PAL_60         ((v4l2_std_id)0x00000800)
00502 
00503 #define V4L2_STD_NTSC_M         ((v4l2_std_id)0x00001000)
00504 #define V4L2_STD_NTSC_M_JP      ((v4l2_std_id)0x00002000)
00505 
00506 #define V4L2_STD_SECAM_B        ((v4l2_std_id)0x00010000)
00507 #define V4L2_STD_SECAM_D        ((v4l2_std_id)0x00020000)
00508 #define V4L2_STD_SECAM_G        ((v4l2_std_id)0x00040000)
00509 #define V4L2_STD_SECAM_H        ((v4l2_std_id)0x00080000)
00510 #define V4L2_STD_SECAM_K        ((v4l2_std_id)0x00100000)
00511 #define V4L2_STD_SECAM_K1       ((v4l2_std_id)0x00200000)
00512 #define V4L2_STD_SECAM_L        ((v4l2_std_id)0x00400000)
00513 
00514 /* ATSC/HDTV */
00515 #define V4L2_STD_ATSC_8_VSB     ((v4l2_std_id)0x01000000)
00516 #define V4L2_STD_ATSC_16_VSB    ((v4l2_std_id)0x02000000)
00517 
00518 /* some common needed stuff */
00519 #define V4L2_STD_PAL_BG         (V4L2_STD_PAL_B         |\
00520                                  V4L2_STD_PAL_B1        |\
00521                                  V4L2_STD_PAL_G)
00522 #define V4L2_STD_PAL_DK         (V4L2_STD_PAL_D         |\
00523                                  V4L2_STD_PAL_D1        |\
00524                                  V4L2_STD_PAL_K)
00525 #define V4L2_STD_PAL            (V4L2_STD_PAL_BG        |\
00526                                  V4L2_STD_PAL_DK        |\
00527                                  V4L2_STD_PAL_H         |\
00528                                  V4L2_STD_PAL_I)
00529 #define V4L2_STD_NTSC           (V4L2_STD_NTSC_M        |\
00530                                  V4L2_STD_NTSC_M_JP)
00531 #define V4L2_STD_SECAM          (V4L2_STD_SECAM_B       |\
00532                                  V4L2_STD_SECAM_D       |\
00533                                  V4L2_STD_SECAM_G       |\
00534                                  V4L2_STD_SECAM_H       |\
00535                                  V4L2_STD_SECAM_K       |\
00536                                  V4L2_STD_SECAM_K1      |\
00537                                  V4L2_STD_SECAM_L)
00538 
00539 #define V4L2_STD_525_60         (V4L2_STD_PAL_M         |\
00540                                  V4L2_STD_PAL_60        |\
00541                                  V4L2_STD_NTSC)
00542 #define V4L2_STD_625_50         (V4L2_STD_PAL           |\
00543                                  V4L2_STD_PAL_N         |\
00544                                  V4L2_STD_PAL_Nc        |\
00545                                  V4L2_STD_SECAM)
00546 
00547 #define V4L2_STD_UNKNOWN        0
00548 #define V4L2_STD_ALL            (V4L2_STD_525_60        |\
00549                                  V4L2_STD_625_50)
00550 
00551 struct v4l2_standard
00552 {
00553         __u32                index;
00554         v4l2_std_id          id;
00555         __u8                 name[24];
00556         struct v4l2_fract    frameperiod; /* Frames, not fields */
00557         __u32                framelines;
00558         __u32                reserved[4];
00559 };
00560 
00561 
00562 /*
00563  *      V I D E O   I N P U T S
00564  */
00565 struct v4l2_input
00566 {
00567         __u32        index;             /*  Which input */
00568         __u8         name[32];          /*  Label */
00569         __u32        type;              /*  Type of input */
00570         __u32        audioset;          /*  Associated audios (bitfield) */
00571         __u32        tuner;             /*  Associated tuner */
00572         v4l2_std_id  std;
00573         __u32        status;
00574         __u32        reserved[4];
00575 };
00576 /*  Values for the 'type' field */
00577 #define V4L2_INPUT_TYPE_TUNER           1
00578 #define V4L2_INPUT_TYPE_CAMERA          2
00579 
00580 /* field 'status' - general */
00581 #define V4L2_IN_ST_NO_POWER    0x00000001  /* Attached device is off */
00582 #define V4L2_IN_ST_NO_SIGNAL   0x00000002
00583 #define V4L2_IN_ST_NO_COLOR    0x00000004
00584 
00585 /* field 'status' - analog */
00586 #define V4L2_IN_ST_NO_H_LOCK   0x00000100  /* No horizontal sync lock */
00587 #define V4L2_IN_ST_COLOR_KILL  0x00000200  /* Color killer is active */
00588 
00589 /* field 'status' - digital */
00590 #define V4L2_IN_ST_NO_SYNC     0x00010000  /* No synchronization lock */
00591 #define V4L2_IN_ST_NO_EQU      0x00020000  /* No equalizer lock */
00592 #define V4L2_IN_ST_NO_CARRIER  0x00040000  /* Carrier recovery failed */
00593 
00594 /* field 'status' - VCR and set-top box */
00595 #define V4L2_IN_ST_MACROVISION 0x01000000  /* Macrovision detected */
00596 #define V4L2_IN_ST_NO_ACCESS   0x02000000  /* Conditional access denied */
00597 #define V4L2_IN_ST_VTR         0x04000000  /* VTR time constant */
00598 
00599 /*
00600  *      V I D E O   O U T P U T S
00601  */
00602 struct v4l2_output
00603 {
00604         __u32        index;             /*  Which output */
00605         __u8         name[32];          /*  Label */
00606         __u32        type;              /*  Type of output */
00607         __u32        audioset;          /*  Associated audios (bitfield) */
00608         __u32        modulator;         /*  Associated modulator */
00609         v4l2_std_id  std;
00610         __u32        reserved[4];
00611 };
00612 /*  Values for the 'type' field */
00613 #define V4L2_OUTPUT_TYPE_MODULATOR              1
00614 #define V4L2_OUTPUT_TYPE_ANALOG                 2
00615 #define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY       3
00616 
00617 /*
00618  *      C O N T R O L S
00619  */
00620 struct v4l2_control
00621 {
00622         __u32                id;
00623         __s32                value;
00624 };
00625 
00626 /*  Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
00627 struct v4l2_queryctrl
00628 {
00629         __u32                id;
00630         enum v4l2_ctrl_type  type;
00631         __u8                 name[32];  /* Whatever */
00632         __s32                minimum;   /* Note signedness */
00633         __s32                maximum;
00634         __s32                step;
00635         __s32                default_value;
00636         __u32                flags;
00637         __u32                reserved[2];
00638 };
00639 
00640 /*  Used in the VIDIOC_QUERYMENU ioctl for querying menu items */
00641 struct v4l2_querymenu
00642 {
00643         __u32           id;
00644         __u32           index;
00645         __u8            name[32];       /* Whatever */
00646         __u32           reserved;
00647 };
00648 
00649 /*  Control flags  */
00650 #define V4L2_CTRL_FLAG_DISABLED         0x0001
00651 #define V4L2_CTRL_FLAG_GRABBED          0x0002
00652 
00653 /*  Control IDs defined by V4L2 */
00654 #define V4L2_CID_BASE                   0x00980900
00655 /*  IDs reserved for driver specific controls */
00656 #define V4L2_CID_PRIVATE_BASE           0x08000000
00657 
00658 #define V4L2_CID_BRIGHTNESS             (V4L2_CID_BASE+0)
00659 #define V4L2_CID_CONTRAST               (V4L2_CID_BASE+1)
00660 #define V4L2_CID_SATURATION             (V4L2_CID_BASE+2)
00661 #define V4L2_CID_HUE                    (V4L2_CID_BASE+3)
00662 #define V4L2_CID_AUDIO_VOLUME           (V4L2_CID_BASE+5)
00663 #define V4L2_CID_AUDIO_BALANCE          (V4L2_CID_BASE+6)
00664 #define V4L2_CID_AUDIO_BASS             (V4L2_CID_BASE+7)
00665 #define V4L2_CID_AUDIO_TREBLE           (V4L2_CID_BASE+8)
00666 #define V4L2_CID_AUDIO_MUTE             (V4L2_CID_BASE+9)
00667 #define V4L2_CID_AUDIO_LOUDNESS         (V4L2_CID_BASE+10)
00668 #define V4L2_CID_BLACK_LEVEL            (V4L2_CID_BASE+11)
00669 #define V4L2_CID_AUTO_WHITE_BALANCE     (V4L2_CID_BASE+12)
00670 #define V4L2_CID_DO_WHITE_BALANCE       (V4L2_CID_BASE+13)
00671 #define V4L2_CID_RED_BALANCE            (V4L2_CID_BASE+14)
00672 #define V4L2_CID_BLUE_BALANCE           (V4L2_CID_BASE+15)
00673 #define V4L2_CID_GAMMA                  (V4L2_CID_BASE+16)
00674 #define V4L2_CID_WHITENESS              (V4L2_CID_GAMMA) /* ? Not sure */
00675 #define V4L2_CID_EXPOSURE               (V4L2_CID_BASE+17)
00676 #define V4L2_CID_AUTOGAIN               (V4L2_CID_BASE+18)
00677 #define V4L2_CID_GAIN                   (V4L2_CID_BASE+19)
00678 #define V4L2_CID_HFLIP                  (V4L2_CID_BASE+20)
00679 #define V4L2_CID_VFLIP                  (V4L2_CID_BASE+21)
00680 #define V4L2_CID_HCENTER                (V4L2_CID_BASE+22)
00681 #define V4L2_CID_VCENTER                (V4L2_CID_BASE+23)
00682 #define V4L2_CID_LASTP1                 (V4L2_CID_BASE+24) /* last CID + 1 */
00683 
00684 /*
00685  *      T U N I N G
00686  */
00687 struct v4l2_tuner
00688 {
00689         __u32                   index;
00690         __u8                    name[32];
00691         enum v4l2_tuner_type    type;
00692         __u32                   capability;
00693         __u32                   rangelow;
00694         __u32                   rangehigh;
00695         __u32                   rxsubchans;
00696         __u32                   audmode;
00697         __s32                   signal;
00698         __s32                   afc;
00699         __u32                   reserved[4];
00700 };
00701 
00702 struct v4l2_modulator
00703 {
00704         __u32                   index;
00705         __u8                    name[32];
00706         __u32                   capability;
00707         __u32                   rangelow;
00708         __u32                   rangehigh;
00709         __u32                   txsubchans;
00710         __u32                   reserved[4];
00711 };
00712 
00713 /*  Flags for the 'capability' field */
00714 #define V4L2_TUNER_CAP_LOW              0x0001
00715 #define V4L2_TUNER_CAP_NORM             0x0002
00716 #define V4L2_TUNER_CAP_STEREO           0x0010
00717 #define V4L2_TUNER_CAP_LANG2            0x0020
00718 #define V4L2_TUNER_CAP_SAP              0x0020
00719 #define V4L2_TUNER_CAP_LANG1            0x0040
00720 
00721 /*  Flags for the 'rxsubchans' field */
00722 #define V4L2_TUNER_SUB_MONO             0x0001
00723 #define V4L2_TUNER_SUB_STEREO           0x0002
00724 #define V4L2_TUNER_SUB_LANG2            0x0004
00725 #define V4L2_TUNER_SUB_SAP              0x0004
00726 #define V4L2_TUNER_SUB_LANG1            0x0008
00727 
00728 /*  Values for the 'audmode' field */
00729 #define V4L2_TUNER_MODE_MONO            0x0000
00730 #define V4L2_TUNER_MODE_STEREO          0x0001
00731 #define V4L2_TUNER_MODE_LANG2           0x0002
00732 #define V4L2_TUNER_MODE_SAP             0x0002
00733 #define V4L2_TUNER_MODE_LANG1           0x0003
00734 
00735 struct v4l2_frequency
00736 {
00737         __u32                 tuner;
00738         enum v4l2_tuner_type  type;
00739         __u32                 frequency;
00740         __u32                 reserved[8];
00741 };
00742 
00743 /*
00744  *      A U D I O
00745  */
00746 struct v4l2_audio
00747 {
00748         __u32   index;
00749         __u8    name[32];
00750         __u32   capability;
00751         __u32   mode;
00752         __u32   reserved[2];
00753 };
00754 /*  Flags for the 'capability' field */
00755 #define V4L2_AUDCAP_STEREO              0x00001
00756 #define V4L2_AUDCAP_AVL                 0x00002
00757 
00758 /*  Flags for the 'mode' field */
00759 #define V4L2_AUDMODE_AVL                0x00001
00760 
00761 struct v4l2_audioout
00762 {
00763         __u32   index;
00764         __u8    name[32];
00765         __u32   capability;
00766         __u32   mode;
00767         __u32   reserved[2];
00768 };
00769 
00770 /*
00771  *      D A T A   S E R V I C E S   ( V B I )
00772  *
00773  *      Data services API by Michael Schimek
00774  */
00775 
00776 struct v4l2_vbi_format
00777 {
00778         __u32   sampling_rate;          /* in 1 Hz */
00779         __u32   offset;
00780         __u32   samples_per_line;
00781         __u32   sample_format;          /* V4L2_PIX_FMT_* */
00782         __s32   start[2];
00783         __u32   count[2];
00784         __u32   flags;                  /* V4L2_VBI_* */
00785         __u32   reserved[2];            /* must be zero */
00786 };
00787 
00788 /*  VBI flags  */
00789 #define V4L2_VBI_UNSYNC         (1<< 0)
00790 #define V4L2_VBI_INTERLACED     (1<< 1)
00791 
00792 
00793 /*
00794  *      A G G R E G A T E   S T R U C T U R E S
00795  */
00796 
00797 /*      Stream data format
00798  */
00799 struct v4l2_format
00800 {
00801         enum v4l2_buf_type type;
00802         union
00803         {
00804                 struct v4l2_pix_format  pix;  // V4L2_BUF_TYPE_VIDEO_CAPTURE
00805                 struct v4l2_window      win;  // V4L2_BUF_TYPE_VIDEO_OVERLAY
00806                 struct v4l2_vbi_format  vbi;  // V4L2_BUF_TYPE_VBI_CAPTURE
00807                 __u8    raw_data[200];        // user-defined
00808         } fmt;
00809 };
00810 
00811 
00812 /*      Stream type-dependent parameters
00813  */
00814 struct v4l2_streamparm
00815 {
00816         enum v4l2_buf_type type;
00817         union
00818         {
00819                 struct v4l2_captureparm capture;
00820                 struct v4l2_outputparm  output;
00821                 __u8    raw_data[200];  /* user-defined */
00822         } parm;
00823 };
00824 
00825 
00826 
00827 /*
00828  *      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
00829  *
00830  */
00831 #define VIDIOC_QUERYCAP         _IOR  ('V',  0, struct v4l2_capability)
00832 #define VIDIOC_RESERVED         _IO   ('V',  1)
00833 #define VIDIOC_ENUM_FMT         _IOWR ('V',  2, struct v4l2_fmtdesc)
00834 #define VIDIOC_G_FMT            _IOWR ('V',  4, struct v4l2_format)
00835 #define VIDIOC_S_FMT            _IOWR ('V',  5, struct v4l2_format)
00836 #if 0
00837 #define VIDIOC_G_COMP           _IOR  ('V',  6, struct v4l2_compression)
00838 #define VIDIOC_S_COMP           _IOW  ('V',  7, struct v4l2_compression)
00839 #endif
00840 #define VIDIOC_REQBUFS          _IOWR ('V',  8, struct v4l2_requestbuffers)
00841 #define VIDIOC_QUERYBUF         _IOWR ('V',  9, struct v4l2_buffer)
00842 #define VIDIOC_G_FBUF           _IOR  ('V', 10, struct v4l2_framebuffer)
00843 #define VIDIOC_S_FBUF           _IOW  ('V', 11, struct v4l2_framebuffer)
00844 #define VIDIOC_OVERLAY          _IOW  ('V', 14, int)
00845 #define VIDIOC_QBUF             _IOWR ('V', 15, struct v4l2_buffer)
00846 #define VIDIOC_DQBUF            _IOWR ('V', 17, struct v4l2_buffer)
00847 #define VIDIOC_STREAMON         _IOW  ('V', 18, int)
00848 #define VIDIOC_STREAMOFF        _IOW  ('V', 19, int)
00849 #define VIDIOC_G_PARM           _IOWR ('V', 21, struct v4l2_streamparm)
00850 #define VIDIOC_S_PARM           _IOWR ('V', 22, struct v4l2_streamparm)
00851 #define VIDIOC_G_STD            _IOR  ('V', 23, v4l2_std_id)
00852 #define VIDIOC_S_STD            _IOW  ('V', 24, v4l2_std_id)
00853 #define VIDIOC_ENUMSTD          _IOWR ('V', 25, struct v4l2_standard)
00854 #define VIDIOC_ENUMINPUT        _IOWR ('V', 26, struct v4l2_input)
00855 #define VIDIOC_G_CTRL           _IOWR ('V', 27, struct v4l2_control)
00856 #define VIDIOC_S_CTRL           _IOWR ('V', 28, struct v4l2_control)
00857 #define VIDIOC_G_TUNER          _IOWR ('V', 29, struct v4l2_tuner)
00858 #define VIDIOC_S_TUNER          _IOW  ('V', 30, struct v4l2_tuner)
00859 #define VIDIOC_G_AUDIO          _IOR  ('V', 33, struct v4l2_audio)
00860 #define VIDIOC_S_AUDIO          _IOW  ('V', 34, struct v4l2_audio)
00861 #define VIDIOC_QUERYCTRL        _IOWR ('V', 36, struct v4l2_queryctrl)
00862 #define VIDIOC_QUERYMENU        _IOWR ('V', 37, struct v4l2_querymenu)
00863 #define VIDIOC_G_INPUT          _IOR  ('V', 38, int)
00864 #define VIDIOC_S_INPUT          _IOWR ('V', 39, int)
00865 #define VIDIOC_G_OUTPUT         _IOR  ('V', 46, int)
00866 #define VIDIOC_S_OUTPUT         _IOWR ('V', 47, int)
00867 #define VIDIOC_ENUMOUTPUT       _IOWR ('V', 48, struct v4l2_output)
00868 #define VIDIOC_G_AUDOUT         _IOR  ('V', 49, struct v4l2_audioout)
00869 #define VIDIOC_S_AUDOUT         _IOW  ('V', 50, struct v4l2_audioout)
00870 #define VIDIOC_G_MODULATOR      _IOWR ('V', 54, struct v4l2_modulator)
00871 #define VIDIOC_S_MODULATOR      _IOW  ('V', 55, struct v4l2_modulator)
00872 #define VIDIOC_G_FREQUENCY      _IOWR ('V', 56, struct v4l2_frequency)
00873 #define VIDIOC_S_FREQUENCY      _IOW  ('V', 57, struct v4l2_frequency)
00874 #define VIDIOC_CROPCAP          _IOR  ('V', 58, struct v4l2_cropcap)
00875 #define VIDIOC_G_CROP           _IOWR ('V', 59, struct v4l2_crop)
00876 #define VIDIOC_S_CROP           _IOW  ('V', 60, struct v4l2_crop)
00877 #define VIDIOC_G_JPEGCOMP       _IOR  ('V', 61, struct v4l2_jpegcompression)
00878 #define VIDIOC_S_JPEGCOMP       _IOW  ('V', 62, struct v4l2_jpegcompression)
00879 #define VIDIOC_QUERYSTD         _IOR  ('V', 63, v4l2_std_id)
00880 #define VIDIOC_TRY_FMT          _IOWR ('V', 64, struct v4l2_format)
00881 #define VIDIOC_ENUMAUDIO        _IOWR ('V', 65, struct v4l2_audio)
00882 #define VIDIOC_ENUMAUDOUT       _IOWR ('V', 66, struct v4l2_audioout)
00883 #define VIDIOC_G_PRIORITY       _IOR  ('V', 67, enum v4l2_priority)
00884 #define VIDIOC_S_PRIORITY       _IOW  ('V', 68, enum v4l2_priority)
00885 
00886 /* for compatibility, will go away some day */
00887 #define VIDIOC_OVERLAY_OLD      _IOWR ('V', 14, int)
00888 #define VIDIOC_S_PARM_OLD       _IOW  ('V', 22, struct v4l2_streamparm)
00889 #define VIDIOC_S_CTRL_OLD       _IOW  ('V', 28, struct v4l2_control)
00890 #define VIDIOC_G_AUDIO_OLD      _IOWR ('V', 33, struct v4l2_audio)
00891 #define VIDIOC_G_AUDOUT_OLD     _IOWR ('V', 49, struct v4l2_audioout)
00892 
00893 #define BASE_VIDIOC_PRIVATE     192             /* 192-255 are private */
00894 
00895 
00896 #ifdef __KERNEL__
00897 /*
00898  *
00899  *      V 4 L 2   D R I V E R   H E L P E R   A P I
00900  *
00901  *      Some commonly needed functions for drivers (v4l2-common.o module)
00902  */
00903 #include <linux/fs.h>
00904 
00905 /*  Video standard functions  */
00906 extern unsigned int v4l2_video_std_fps(struct v4l2_standard *vs);
00907 extern int v4l2_video_std_construct(struct v4l2_standard *vs,
00908                                     int id, char *name);
00909 
00910 /* prority handling */
00911 struct v4l2_prio_state {
00912         atomic_t prios[4];
00913 };
00914 int v4l2_prio_init(struct v4l2_prio_state *global);
00915 int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local,
00916                      enum v4l2_priority new);
00917 int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local);
00918 int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local);
00919 enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global);
00920 int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local);
00921 
00922 /* names for fancy debug output */
00923 extern char *v4l2_field_names[];
00924 extern char *v4l2_type_names[];
00925 extern char *v4l2_ioctl_names[];
00926 
00927 /*  Compatibility layer interface  --  v4l1-compat module */
00928 typedef int (*v4l2_kioctl)(struct inode *inode, struct file *file,
00929                            unsigned int cmd, void *arg);
00930 int v4l_compat_translate_ioctl(struct inode *inode, struct file *file,
00931                                int cmd, void *arg, v4l2_kioctl driver_ioctl);
00932 
00933 #endif /* __KERNEL__ */
00934 #endif /* __LINUX_VIDEODEV2_H */
00935 
00936 /*
00937  * Local variables:
00938  * c-basic-offset: 8
00939  * End:
00940  */