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
  83 #define SCRATCH_BUF_SIZE (STREAM_BUF_SIZE * 2)
  84
  85 enum {
  86         STATE_SCANNING,         /* Scanning for start */
  87         STATE_HEADER,           /* Parsing header */
  88         STATE_LINES,            /* Parsing lines */
  89 };
  90
  91 struct usb_device;
  92
  93 struct cpia_sbuf {
  94         char *data;
  95         int len;
  96         void *isodesc;
  97 };
  98
  99 enum {
 100         FRAME_READY,            /* Ready to grab into */
 101         FRAME_GRABBING,         /* In the process of being grabbed into */
 102         FRAME_DONE,             /* Finished grabbing, but not been synced yet */
 103         FRAME_UNUSED,           /* Unused (no MCAPTURE) */
 104 };
 105
 106 struct cpia_frame {
 107         char *data;
 108         int width;
 109         int height;
 110         int state;
 111 };
 112
 113 struct usb_cpia {
 114         struct video_device vdev;
 115
 116         /* Device structure */
 117         struct usb_device *dev;
 118
 119         int streaming;
 120
 121         char *fbuf;                     /* Videodev buffer area */
 122
 123         int curframe;
 124         struct cpia_frame frame[2];     /* Double buffering */
 125
 126         int receivesbuf;                /* Current receiving sbuf */
 127         struct cpia_sbuf sbuf[3];       /* Triple buffering */
 128
 129         int state;                      /* Current scanning state */
 130         int curline;
 131
 132         char scratch[SCRATCH_BUF_SIZE];
 133         int scratchlen;
 134
 135         wait_queue_head_t wq;
 136 };
 137
 138 #endif
 139