LXR linux/drivers/media/video/se401.h

   1
   2#ifndef __LINUX_se401_H
   3#define __LINUX_se401_H
   4
   5#include <asm/uaccess.h>
   6#include <linux/videodev.h>
   7#include <media/v4l2-common.h>
   8#include <linux/mutex.h>
   9
  10#define se401_DEBUG     /* Turn on debug messages */
  11
  12#ifdef se401_DEBUG
  13#  define PDEBUG(level, fmt, args...) \
  14if (debug >= level) info("[" __PRETTY_FUNCTION__ ":%d] " fmt, __LINE__ , ## args)
  15#else
  16#  define PDEBUG(level, fmt, args...) do {} while(0)
  17#endif
  18
  19/* An almost drop-in replacement for sleep_on_interruptible */
  20#define wait_interruptible(test, queue, wait) \
  21{ \
  22        add_wait_queue(queue, wait); \
  23        set_current_state(TASK_INTERRUPTIBLE); \
  24        if (test) \
  25                schedule(); \
  26        remove_wait_queue(queue, wait); \
  27        set_current_state(TASK_RUNNING); \
  28        if (signal_pending(current)) \
  29                break; \
  30}
  31
  32#define SE401_REQ_GET_CAMERA_DESCRIPTOR         0x06
  33#define SE401_REQ_START_CONTINUOUS_CAPTURE      0x41
  34#define SE401_REQ_STOP_CONTINUOUS_CAPTURE       0x42
  35#define SE401_REQ_CAPTURE_FRAME                 0x43
  36#define SE401_REQ_GET_BRT                       0x44
  37#define SE401_REQ_SET_BRT                       0x45
  38#define SE401_REQ_GET_WIDTH                     0x4c
  39#define SE401_REQ_SET_WIDTH                     0x4d
  40#define SE401_REQ_GET_HEIGHT                    0x4e
  41#define SE401_REQ_SET_HEIGHT                    0x4f
  42#define SE401_REQ_GET_OUTPUT_MODE               0x50
  43#define SE401_REQ_SET_OUTPUT_MODE               0x51
  44#define SE401_REQ_GET_EXT_FEATURE               0x52
  45#define SE401_REQ_SET_EXT_FEATURE               0x53
  46#define SE401_REQ_CAMERA_POWER                  0x56
  47#define SE401_REQ_LED_CONTROL                   0x57
  48#define SE401_REQ_BIOS                          0xff
  49
  50#define SE401_BIOS_READ                         0x07
  51
  52#define SE401_FORMAT_BAYER      0x40
  53
  54/* Hyundai hv7131b registers
  55   7121 and 7141 should be the same (haven't really checked...) */
  56/* Mode registers: */
  57#define HV7131_REG_MODE_A               0x00
  58#define HV7131_REG_MODE_B               0x01
  59#define HV7131_REG_MODE_C               0x02
  60/* Frame registers: */
  61#define HV7131_REG_FRSU         0x10
  62#define HV7131_REG_FRSL         0x11
  63#define HV7131_REG_FCSU         0x12
  64#define HV7131_REG_FCSL         0x13
  65#define HV7131_REG_FWHU         0x14
  66#define HV7131_REG_FWHL         0x15
  67#define HV7131_REG_FWWU         0x16
  68#define HV7131_REG_FWWL         0x17
  69/* Timing registers: */
  70#define HV7131_REG_THBU         0x20
  71#define HV7131_REG_THBL         0x21
  72#define HV7131_REG_TVBU         0x22
  73#define HV7131_REG_TVBL         0x23
  74#define HV7131_REG_TITU         0x25
  75#define HV7131_REG_TITM         0x26
  76#define HV7131_REG_TITL         0x27
  77#define HV7131_REG_TMCD         0x28
  78/* Adjust Registers: */
  79#define HV7131_REG_ARLV         0x30
  80#define HV7131_REG_ARCG         0x31
  81#define HV7131_REG_AGCG         0x32
  82#define HV7131_REG_ABCG         0x33
  83#define HV7131_REG_APBV         0x34
  84#define HV7131_REG_ASLP         0x54
  85/* Offset Registers: */
  86#define HV7131_REG_OFSR         0x50
  87#define HV7131_REG_OFSG         0x51
  88#define HV7131_REG_OFSB         0x52
  89/* REset level statistics registers: */
  90#define HV7131_REG_LOREFNOH     0x57
  91#define HV7131_REG_LOREFNOL     0x58
  92#define HV7131_REG_HIREFNOH     0x59
  93#define HV7131_REG_HIREFNOL     0x5a
  94
  95/* se401 registers */
  96#define SE401_OPERATINGMODE     0x2000
  97
  98
  99/* size of usb transfers */
 100#define SE401_PACKETSIZE        4096
 101/* number of queued bulk transfers to use, should be about 8 */
 102#define SE401_NUMSBUF           1
 103/* read the usb specs for this one :) */
 104#define SE401_VIDEO_ENDPOINT    1
 105#define SE401_BUTTON_ENDPOINT   2
 106/* number of frames supported by the v4l part */
 107#define SE401_NUMFRAMES         2
 108/* scratch buffers for passing data to the decoders */
 109#define SE401_NUMSCRATCH        32
 110/* maximum amount of data in a JangGu packet */
 111#define SE401_VLCDATALEN        1024
 112/* number of nul sized packets to receive before kicking the camera */
 113#define SE401_MAX_NULLPACKETS   4000
 114/* number of decoding errors before kicking the camera */
 115#define SE401_MAX_ERRORS        200
 116
 117struct usb_device;
 118
 119struct se401_sbuf {
 120        unsigned char *data;
 121};
 122
 123enum {
 124        FRAME_UNUSED,           /* Unused (no MCAPTURE) */
 125        FRAME_READY,            /* Ready to start grabbing */
 126        FRAME_GRABBING,         /* In the process of being grabbed into */
 127        FRAME_DONE,             /* Finished grabbing, but not been synced yet */
 128        FRAME_ERROR,            /* Something bad happened while processing */
 129};
 130
 131enum {
 132        FMT_BAYER,
 133        FMT_JANGGU,
 134};
 135
 136enum {
 137        BUFFER_UNUSED,
 138        BUFFER_READY,
 139        BUFFER_BUSY,
 140        BUFFER_DONE,
 141};
 142
 143struct se401_scratch {
 144        unsigned char *data;
 145        volatile int state;
 146        int offset;
 147        int length;
 148};
 149
 150struct se401_frame {
 151        unsigned char *data;            /* Frame buffer */
 152
 153        volatile int grabstate; /* State of grabbing */
 154
 155        unsigned char *curline;
 156        int curlinepix;
 157        int curpix;
 158};
 159
 160struct usb_se401 {
 161        struct video_device vdev;
 162
 163        /* Device structure */
 164        struct usb_device *dev;
 165
 166        unsigned char iface;
 167
 168        char *camera_name;
 169
 170        int change;
 171        int brightness;
 172        int hue;
 173        int rgain;
 174        int ggain;
 175        int bgain;
 176        int expose_h;
 177        int expose_m;
 178        int expose_l;
 179        int resetlevel;
 180
 181        int enhance;
 182
 183        int format;
 184        int sizes;
 185        int *width;
 186        int *height;
 187        int cwidth;             /* current width */
 188        int cheight;            /* current height */
 189        int palette;
 190        int maxframesize;
 191        int cframesize;         /* current framesize */
 192
 193        struct mutex lock;
 194        int user;               /* user count for exclusive use */
 195        int removed;            /* device disconnected */
 196
 197        int streaming;          /* Are we streaming video? */
 198
 199        char *fbuf;             /* Videodev buffer area */
 200
 201        struct urb *urb[SE401_NUMSBUF];
 202        struct urb *inturb;
 203
 204        int button;
 205        int buttonpressed;
 206
 207        int curframe;           /* Current receiving frame */
 208        struct se401_frame frame[SE401_NUMFRAMES];
 209        int readcount;
 210        int framecount;
 211        int error;
 212        int dropped;
 213
 214        int scratch_next;
 215        int scratch_use;
 216        int scratch_overflow;
 217        struct se401_scratch scratch[SE401_NUMSCRATCH];
 218
 219        /* Decoder specific data: */
 220        unsigned char vlcdata[SE401_VLCDATALEN];
 221        int vlcdatapos;
 222        int bayeroffset;
 223
 224        struct se401_sbuf sbuf[SE401_NUMSBUF];
 225
 226        wait_queue_head_t wq;   /* Processes waiting */
 227
 228        int nullpackets;
 229};
 230
 231
 232
 233#endif
 234
 235