LXR linux/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...) \
  15if (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
 119struct usb_device;
 120
 121struct se401_sbuf {
 122        unsigned char *data;
 123};
 124
 125enum {
 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
 133enum {
 134        FMT_BAYER,
 135        FMT_JANGGU,
 136};
 137
 138enum {
 139        BUFFER_UNUSED,
 140        BUFFER_READY,
 141        BUFFER_BUSY,
 142        BUFFER_DONE,
 143};
 144
 145struct se401_scratch {
 146        unsigned char *data;
 147        volatile int state;
 148        int offset;
 149        int length;
 150};
 151
 152struct 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
 162struct 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
 237