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