drivers/media/video/se401.h

   1
   2 #ifndef __LINUX_se401_H
   3 #define __LINUX_se401_H
   4
   5 #include <linux/uaccess.h>
   6 #include <linux/videodev.h>
   7 #include <media/v4l2-common.h>
   8 #include <media/v4l2-ioctl.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) \
  16         info("[" __PRETTY_FUNCTION__ ":%d] " fmt, __LINE__ , ## args)
  17 #else
  18 #  define PDEBUG(level, fmt, args...) do {} while (0)
  19 #endif
  20
  21 /* An almost drop-in replacement for sleep_on_interruptible */
  22 #define wait_interruptible(test, queue, wait) \
  23 { \
  24         add_wait_queue(queue, wait); \
  25         set_current_state(TASK_INTERRUPTIBLE); \
  26         if (test) \
  27                 schedule(); \
  28         remove_wait_queue(queue, wait); \
  29         set_current_state(TASK_RUNNING); \
  30         if (signal_pending(current)) \
  31                 break; \
  32 }
  33
  34 #define SE401_REQ_GET_CAMERA_DESCRIPTOR         0x06
  35 #define SE401_REQ_START_CONTINUOUS_CAPTURE      0x41
  36 #define SE401_REQ_STOP_CONTINUOUS_CAPTURE       0x42
  37 #define SE401_REQ_CAPTURE_FRAME                 0x43
  38 #define SE401_REQ_GET_BRT                       0x44
  39 #define SE401_REQ_SET_BRT                       0x45
  40 #define SE401_REQ_GET_WIDTH                     0x4c
  41 #define SE401_REQ_SET_WIDTH                     0x4d
  42 #define SE401_REQ_GET_HEIGHT                    0x4e
  43 #define SE401_REQ_SET_HEIGHT                    0x4f
  44 #define SE401_REQ_GET_OUTPUT_MODE               0x50
  45 #define SE401_REQ_SET_OUTPUT_MODE               0x51
  46 #define SE401_REQ_GET_EXT_FEATURE               0x52
  47 #define SE401_REQ_SET_EXT_FEATURE               0x53
  48 #define SE401_REQ_CAMERA_POWER                  0x56
  49 #define SE401_REQ_LED_CONTROL                   0x57
  50 #define SE401_REQ_BIOS                          0xff
  51
  52 #define SE401_BIOS_READ                         0x07
  53
  54 #define SE401_FORMAT_BAYER      0x40
  55
  56 /* Hyundai hv7131b registers
  57    7121 and 7141 should be the same (haven't really checked...) */
  58 /* Mode registers: */
  59 #define HV7131_REG_MODE_A               0x00
  60 #define HV7131_REG_MODE_B               0x01
  61 #define HV7131_REG_MODE_C               0x02
  62 /* Frame registers: */
  63 #define HV7131_REG_FRSU         0x10
  64 #define HV7131_REG_FRSL         0x11
  65 #define HV7131_REG_FCSU         0x12
  66 #define HV7131_REG_FCSL         0x13
  67 #define HV7131_REG_FWHU         0x14
  68 #define HV7131_REG_FWHL         0x15
  69 #define HV7131_REG_FWWU         0x16
  70 #define HV7131_REG_FWWL         0x17
  71 /* Timing registers: */
  72 #define HV7131_REG_THBU         0x20
  73 #define HV7131_REG_THBL         0x21
  74 #define HV7131_REG_TVBU         0x22
  75 #define HV7131_REG_TVBL         0x23
  76 #define HV7131_REG_TITU         0x25
  77 #define HV7131_REG_TITM         0x26
  78 #define HV7131_REG_TITL         0x27
  79 #define HV7131_REG_TMCD         0x28
  80 /* Adjust Registers: */
  81 #define HV7131_REG_ARLV         0x30
  82 #define HV7131_REG_ARCG         0x31
  83 #define HV7131_REG_AGCG         0x32
  84 #define HV7131_REG_ABCG         0x33
  85 #define HV7131_REG_APBV         0x34
  86 #define HV7131_REG_ASLP         0x54
  87 /* Offset Registers: */
  88 #define HV7131_REG_OFSR         0x50
  89 #define HV7131_REG_OFSG         0x51
  90 #define HV7131_REG_OFSB         0x52
  91 /* REset level statistics registers: */
  92 #define HV7131_REG_LOREFNOH     0x57
  93 #define HV7131_REG_LOREFNOL     0x58
  94 #define HV7131_REG_HIREFNOH     0x59
  95 #define HV7131_REG_HIREFNOL     0x5a
  96
  97 /* se401 registers */
  98 #define SE401_OPERATINGMODE     0x2000
  99
 100
 101 /* size of usb transfers */
 102 #define SE401_PACKETSIZE        4096
 103 /* number of queued bulk transfers to use, should be about 8 */
 104 #define SE401_NUMSBUF           1
 105 /* read the usb specs for this one :) */
 106 #define SE401_VIDEO_ENDPOINT    1
 107 #define SE401_BUTTON_ENDPOINT   2
 108 /* number of frames supported by the v4l part */
 109 #define SE401_NUMFRAMES         2
 110 /* scratch buffers for passing data to the decoders */
 111 #define SE401_NUMSCRATCH        32
 112 /* maximum amount of data in a JangGu packet */
 113 #define SE401_VLCDATALEN        1024
 114 /* number of nul sized packets to receive before kicking the camera */
 115 #define SE401_MAX_NULLPACKETS   4000
 116 /* number of decoding errors before kicking the camera */
 117 #define SE401_MAX_ERRORS        200
 118
 119 struct usb_device;
 120
 121 struct se401_sbuf {
 122         unsigned char *data;
 123 };
 124
 125 enum {
 126         FRAME_UNUSED,           /* Unused (no MCAPTURE) */
 127         FRAME_READY,            /* Ready to start grabbing */
 128         FRAME_GRABBING,         /* In the process of being grabbed into */
 129         FRAME_DONE,             /* Finished grabbing, but not been synced yet */
 130         FRAME_ERROR,            /* Something bad happened while processing */
 131 };
 132
 133 enum {
 134         FMT_BAYER,
 135         FMT_JANGGU,
 136 };
 137
 138 enum {
 139         BUFFER_UNUSED,
 140         BUFFER_READY,
 141         BUFFER_BUSY,
 142         BUFFER_DONE,
 143 };
 144
 145 struct se401_scratch {
 146         unsigned char *data;
 147         volatile int state;
 148         int offset;
 149         int length;
 150 };
 151
 152 struct se401_frame {
 153         unsigned char *data;            /* Frame buffer */
 154
 155         volatile int grabstate; /* State of grabbing */
 156
 157         unsigned char *curline;
 158         int curlinepix;
 159         int curpix;
 160 };
 161
 162 struct usb_se401 {
 163         struct video_device vdev;
 164
 165         /* Device structure */
 166         struct usb_device *dev;
 167
 168         unsigned char iface;
 169
 170         char *camera_name;
 171
 172         int change;
 173         int brightness;
 174         int hue;
 175         int rgain;
 176         int ggain;
 177         int bgain;
 178         int expose_h;
 179         int expose_m;
 180         int expose_l;
 181         int resetlevel;
 182
 183         int enhance;
 184
 185         int format;
 186         int sizes;
 187         int *width;
 188         int *height;
 189         int cwidth;             /* current width */
 190         int cheight;            /* current height */
 191         int palette;
 192         int maxframesize;
 193         int cframesize;         /* current framesize */
 194
 195         struct mutex lock;
 196         int user;               /* user count for exclusive use */
 197         int removed;            /* device disconnected */
 198
 199         int streaming;          /* Are we streaming video? */
 200
 201         char *fbuf;             /* Videodev buffer area */
 202
 203         struct urb *urb[SE401_NUMSBUF];
 204         struct urb *inturb;
 205
 206         int button;
 207         int buttonpressed;
 208
 209         int curframe;           /* Current receiving frame */
 210         struct se401_frame frame[SE401_NUMFRAMES];
 211         int readcount;
 212         int framecount;
 213         int error;
 214         int dropped;
 215
 216         int scratch_next;
 217         int scratch_use;
 218         int scratch_overflow;
 219         struct se401_scratch scratch[SE401_NUMSCRATCH];
 220
 221         /* Decoder specific data: */
 222         unsigned char vlcdata[SE401_VLCDATALEN];
 223         int vlcdatapos;
 224         int bayeroffset;
 225
 226         struct se401_sbuf sbuf[SE401_NUMSBUF];
 227
 228         wait_queue_head_t wq;   /* Processes waiting */
 229
 230         int nullpackets;
 231 };
 232
 233
 234
 235 #endif
 236