drivers/usb/cpia.h

   1 #ifndef __LINUX_CPIA_H
   2 #define __LINUX_CPIA_H
   3
   4 #include <linux/list.h>
   5
   6 #define USB_REQ_CPIA_GET_VERSION                0x01
   7 #define USB_REQ_CPIA_GET_PNP_ID                 0x02
   8 #define USB_REQ_CPIA_GET_CAMERA_STATUS          0x03
   9 #define USB_REQ_CPIA_GOTO_HI_POWER              0x04
  10 #define USB_REQ_CPIA_GOTO_LO_POWER              0x05
  11 /* No 0x06 */
  12 #define USB_REQ_CPIA_GOTO_SUSPEND               0x07
  13 #define USB_REQ_CPIA_GOTO_PASS_THROUGH          0x08
  14 /* No 0x09 */
  15 #define USB_REQ_CPIA_MODIFY_CAMERA_STATUS       0x0A
  16
  17 #define USB_REQ_CPIA_READ_VC_REGS               0x21
  18 #define USB_REQ_CPIA_WRITE_BC_REG               0x22
  19 #define USB_REQ_CPIA_READ_MC_PORTS              0x23
  20 #define USB_REQ_CPIA_WRITE_MC_PORT              0x24
  21 #define USB_REQ_CPIA_SET_BAUD_RATE              0x25
  22 #define USB_REQ_CPIA_SET_ECP_TIMING             0x26
  23 #define USB_REQ_CPIA_READ_IDATA                 0x27
  24 #define USB_REQ_CPIA_WRITE_IDATA                0x28
  25 #define USB_REQ_CPIA_GENERIC_CALL               0x29
  26 #define USB_REQ_CPIA_I2CSTART                   0x2A
  27 #define USB_REQ_CPIA_I2CSTOP                    0x2B
  28 #define USB_REQ_CPIA_I2CWRITE                   0x2C
  29 #define USB_REQ_CPIA_I2CREAD                    0x2D
  30
  31 #define USB_REQ_CPIA_GET_VP_VERSION             0xA1
  32 #define USB_REQ_CPIA_SET_COLOUR_PARAMS          0xA3
  33 #define USB_REQ_CPIA_SET_EXPOSURE               0xA4
  34 /* No 0xA5 */
  35 #define USB_REQ_CPIA_SET_COLOUR_BALANCE         0xA6
  36 #define USB_REQ_CPIA_SET_SENSOR_FPS             0xA7
  37 #define USB_REQ_CPIA_SET_VP_DEFAULTS            0xA8
  38 #define USB_REQ_CPIA_SET_APCOR                  0xA9
  39 #define USB_REQ_CPIA_SET_FLICKER_CTRL           0xAA
  40 #define USB_REQ_CPIA_SET_VL_OFFSET              0xAB
  41
  42 #define USB_REQ_CPIA_GET_COLOUR_PARAMETERS      0xB0
  43 #define USB_REQ_CPIA_GET_COLOUR_BALANCE         0xB1
  44 #define USB_REQ_CPIA_GET_EXPOSURE               0xB2
  45 #define USB_REQ_CPIA_SET_SENSOR_MATRIX          0xB3
  46
  47 #define USB_REQ_CPIA_COLOUR_BARS                0xBD
  48 #define USB_REQ_CPIA_READ_VP_REGS               0xBE
  49 #define USB_REQ_CPIA_WRITE_VP_REGS              0xBF
  50
  51 #define USB_REQ_CPIA_GRAB_FRAME                 0xC1
  52 #define USB_REQ_CPIA_UPLOAD_FRAME               0xC2
  53 #define USB_REQ_CPIA_SET_GRAB_MODE              0xC3
  54 #define USB_REQ_CPIA_INIT_STREAM_CAP            0xC4
  55 #define USB_REQ_CPIA_FINI_STREAM_CAP            0xC5
  56 #define USB_REQ_CPIA_START_STREAM_CAP           0xC6
  57 #define USB_REQ_CPIA_END_STREAM_CAP             0xC7
  58 #define USB_REQ_CPIA_SET_FORMAT                 0xC8
  59 #define USB_REQ_CPIA_SET_ROI                    0xC9
  60 #define USB_REQ_CPIA_SET_COMPRESSION            0xCA
  61 #define USB_REQ_CPIA_SET_COMPRESSION_TARGET     0xCB
  62 #define USB_REQ_CPIA_SET_YUV_THRESH             0xCC
  63 #define USB_REQ_CPIA_SET_COMPRESSION_PARAMS     0xCD
  64 #define USB_REQ_CPIA_DISCARD_FRAME              0xCE
  65
  66 #define USB_REQ_CPIA_OUTPUT_RS232               0xE1
  67 #define USB_REQ_CPIA_ABORT_PROCESS              0xE4
  68 #define USB_REQ_CPIA_SET_DRAM_PAGE              0xE5
  69 #define USB_REQ_CPIA_START_DRAM_UPLOAD          0xE6
  70 #define USB_REQ_CPIA_START_DUMMY_STREAM         0xE8
  71 #define USB_REQ_CPIA_ABORT_STREAM               0xE9
  72 #define USB_REQ_CPIA_DOWNLOAD_DRAM              0xEA
  73 /* #define USB_REQ_CPIA_NULL_CMD                0x?? */
  74
  75 #define CPIA_QCIF       0
  76 #define CPIA_CIF        1
  77
  78 #define CPIA_YUYV       0
  79 #define CPIA_UYVY       1
  80
  81 #define STREAM_BUF_SIZE         (PAGE_SIZE * 4)
  82 /* #define STREAM_BUF_SIZE      (FRAMES_PER_DESC * FRAME_SIZE_PER_DESC) */
  83
  84 #define SCRATCH_BUF_SIZE        (STREAM_BUF_SIZE * 2)
  85
  86 #define FRAMES_PER_DESC         10
  87 #define FRAME_SIZE_PER_DESC     960     /* Shouldn't be hardcoded */
  88
  89 enum {
  90         STATE_SCANNING,         /* Scanning for start */
  91         STATE_HEADER,           /* Parsing header */
  92         STATE_LINES,            /* Parsing lines */
  93 };
  94
  95 #define CPIA_MAGIC      0x1968
  96 struct cpia_frame_header {
  97         __u16 magic;            /* 0 - 1 */
  98         __u16 timestamp;        /* 2 - 3 */
  99         __u16 unused;           /* 4 - 5 */
 100         __u16 timestamp1;       /* 6 - 7 */
 101         __u8  unused1[8];       /* 8 - 15 */
 102         __u8  video_size;       /* 16 0 = QCIF, 1 = CIF */
 103         __u8  sub_sample;       /* 17 0 = 4:2:0, 1 = 4:2:2 */
 104         __u8  yuv_order;        /* 18 0 = YUYV, 1 = UYVY */
 105         __u8  unused2[5];       /* 19 - 23 */
 106         __u8  col_start;        /* 24 */
 107         __u8  col_end;          /* 25 */
 108         __u8  row_start;        /* 26 */
 109         __u8  row_end;          /* 27 */
 110         __u8  comp_enable;      /* 28 0 = non compressed, 1 = compressed */
 111         __u8  decimation;       /* 29 0 = no decimation, 1 = decimation */
 112         __u8  y_thresh;         /* 30 */
 113         __u8  uv_thresh;        /* 31 */
 114         __u8  system_state;     /* 32 */
 115         __u8  grab_state;       /* 33 */
 116         __u8  stream_state;     /* 34 */
 117         __u8  fatal_error;      /* 35 */
 118         __u8  cmd_error;        /* 36 */
 119         __u8  debug_flags;      /* 37 */
 120         __u8  camera_state_7;   /* 38 */
 121         __u8  camera_state_8;   /* 39 */
 122         __u8  cr_achieved;      /* 40 */
 123         __u8  fr_achieved;      /* 41 */
 124         __u8  unused3[22];      /* 42 - 63 */
 125 };
 126
 127 struct usb_device;
 128
 129 struct cpia_sbuf {
 130         char *data;
 131         struct usb_isoc_desc *isodesc;
 132 };
 133
 134 enum {
 135         FRAME_UNUSED,           /* Unused (no MCAPTURE) */
 136         FRAME_READY,            /* Ready to start grabbing */
 137         FRAME_GRABBING,         /* In the process of being grabbed into */
 138         FRAME_DONE,             /* Finished grabbing, but not been synced yet */
 139         FRAME_ERROR,            /* Something bad happened while processing */
 140 };
 141
 142 struct cpia_frame {
 143         char *data;             /* Frame buffer */
 144
 145         struct cpia_frame_header header;        /* Header from stream */
 146
 147         int width;              /* Width application is expecting */
 148         int height;             /* Height */
 149
 150         int hdrwidth;           /* Width the frame actually is */
 151         int hdrheight;          /* Height */
 152
 153         int grabstate;          /* State of grabbing */
 154         int scanstate;          /* State of scanning */
 155
 156         int curline;            /* Line of frame we're working on */
 157
 158         wait_queue_head_t wq;   /* Processes waiting */
 159 };
 160
 161 #define CPIA_NUMFRAMES  2
 162 #define CPIA_NUMSBUF    2
 163
 164 struct usb_cpia {
 165         struct video_device vdev;
 166
 167         /* Device structure */
 168         struct usb_device *dev;
 169
 170         int streaming;          /* Are we streaming Isochronous? */
 171         int grabbing;           /* Are we grabbing? */
 172
 173         int compress;           /* Should the next frame be compressed? */
 174
 175         char *fbuf;             /* Videodev buffer area */
 176
 177         int curframe;
 178         struct cpia_frame frame[CPIA_NUMFRAMES];        /* Double buffering */
 179
 180         int cursbuf;            /* Current receiving sbuf */
 181         struct cpia_sbuf sbuf[CPIA_NUMSBUF];            /* Double buffering */
 182
 183         /* Scratch space from the Isochronous pipe */
 184         unsigned char scratch[SCRATCH_BUF_SIZE];
 185         int scratchlen;
 186 };
 187
 188 #endif
 189