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...) \
  14 if (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
 117 struct usb_device;
 118
 119 struct se401_sbuf {
 120         unsigned char *data;
 121 };
 122
 123 enum {
 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
 131 enum {
 132         FMT_BAYER,
 133         FMT_JANGGU,
 134 };
 135
 136 enum {
 137         BUFFER_UNUSED,
 138         BUFFER_READY,
 139         BUFFER_BUSY,
 140         BUFFER_DONE,
 141 };
 142
 143 struct se401_scratch {
 144         unsigned char *data;
 145         volatile int state;
 146         int offset;
 147         int length;
 148 };
 149
 150 struct 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
 160 struct 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