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