lib/gdi/lcd.cpp

   1 #include <lib/gdi/lcd.h>
   2
   3 #include <unistd.h>
   4 #include <fcntl.h>
   5 #include <sys/ioctl.h>
   6
   7 #include <dbox/fp.h>
   8 #include <dbox/lcd-ks0713.h>
   9
  10 #include <lib/gdi/esize.h>
  11 #include <lib/base/init.h>
  12 #include <lib/base/init_num.h>
  13 #include <lib/gdi/glcddc.h>
  14
  15 eDBoxLCD *eDBoxLCD::instance;
  16
  17 eLCD::eLCD(eSize size): res(size)
  18 {
  19         locked=0;
  20         _buffer=new unsigned char[res.height()*res.width()];
  21         _stride=res.width();
  22 }
  23
  24 eLCD::~eLCD()
  25 {
  26         delete [] _buffer;
  27 }
  28
  29 int eLCD::lock()
  30 {
  31         if (locked)
  32                 return -1;
  33
  34         locked=1;
  35         return lcdfd;
  36 }
  37
  38 void eLCD::unlock()
  39 {
  40         read( lcdfd, NULL, 0);
  41         if ( errno == 9 )
  42         {
  43                 eDebug("reopen lcd");
  44                 lcdfd=open("/dev/dbox/lcd0", O_RDWR);  // reopen device
  45         }
  46         else
  47                 eDebug("do not reopen lcd.. errno = %d", errno);
  48
  49         locked=0;
  50 }
  51
  52 eDBoxLCD::eDBoxLCD(): eLCD(eSize(128, 64))
  53 {
  54 #ifndef NO_LCD
  55         lcdfd=open("/dev/dbox/lcd0", O_RDWR);
  56 #else
  57         lcdfd=-1;
  58 #endif
  59         instance=this;
  60
  61         if (lcdfd<0)
  62                 eDebug("couldn't open LCD - load lcd.o!");
  63         else
  64         {
  65                 int i=LCD_MODE_BIN;
  66                 ioctl(lcdfd, LCD_IOCTL_ASC_MODE, &i);
  67                 int lcdbrightness=0, lcdcontrast=0;
  68
  69                 lcdbrightness=130;
  70                 lcdcontrast=32;
  71                 setLCDParameter(lcdbrightness, lcdcontrast);
  72                 inverted=0;
  73         }
  74 }
  75
  76 void eDBoxLCD::setInverted(unsigned char inv)
  77 {
  78         inverted=inv;
  79         update();
  80 }
  81
  82 int eDBoxLCD::setLCDParameter(int brightness, int contrast)
  83 {
  84         int fp;
  85         if((fp=open("/dev/dbox/fp0", O_RDWR))<=0)
  86         {
  87                 eDebug("[LCD] can't open /dev/dbox/fp0");
  88                 return(-1);
  89         }
  90
  91         if(ioctl(lcdfd, LCD_IOCTL_SRV, &contrast))
  92         {
  93                 eDebug("[LCD] can't set lcd contrast");
  94         }
  95
  96         if(ioctl(fp, FP_IOCTL_LCD_DIMM, &brightness))
  97         {
  98                 eDebug("[LCD] can't set lcd brightness");
  99         }
 100         eDebug("[LCD] set brightness %d, contrast %d", brightness, contrast);
 101         return(0);
 102 }
 103
 104 eDBoxLCD::~eDBoxLCD()
 105 {
 106         if (lcdfd>0)
 107         {
 108                 close(lcdfd);
 109                 lcdfd=0;
 110         }
 111 }
 112
 113 eDBoxLCD *eDBoxLCD::getInstance()
 114 {
 115         return instance;
 116 }
 117
 118 void eDBoxLCD::update()
 119 {
 120         unsigned char raw[120*8];
 121         int x, y, yy;
 122         for (y=0; y<8; y++)
 123         {
 124                 for (x=0; x<120; x++)
 125                 {
 126                         int pix=0;
 127                         for (yy=0; yy<8; yy++)
 128                         {
 129                                 pix|=(_buffer[(y*8+yy)*128+x]>=108)<<yy;
 130                         }
 131                         raw[y*120+x]=(pix^inverted);
 132                 }
 133         }
 134         if (lcdfd>0)
 135                 write(lcdfd, raw, 120*8);
 136 }
 137