git.zerfleddert.de Git - proxmark3-svn/blob - armsrc/LCD.c

   1 #include <proxmark3.h>
   2 #include "apps.h"
   3 #include "LCD.h"
   4
   5 void LCDSend(unsigned int data)
   6 {
   7         // 9th bit set for data, clear for command
   8         while ((AT91C_BASE_SPI->SPI_SR & AT91C_SPI_TXEMPTY) == 0);      // wait for the transfer to complete
   9         // For clarity's sake we pass data with 9th bit clear and commands with 9th
  10         // bit set since they're implemented as defines, se we need to invert bit
  11         AT91C_BASE_SPI->SPI_TDR = data^0x100;                                                   // Send the data/command
  12 }
  13
  14 void LCDSetXY(unsigned char x, unsigned char y)
  15 {
  16         LCDSend(PPASET);                        // page start/end ram
  17         LCDSend(y);                                     // Start Page to display to
  18         LCDSend(131);                           // End Page to display to
  19
  20         LCDSend(PCASET);                        // column start/end ram
  21         LCDSend(x);                                     // Start Column to display to
  22         LCDSend(131);                           // End Column to display to
  23 }
  24
  25 void LCDSetPixel(unsigned char x, unsigned char y, unsigned char color)
  26 {
  27         LCDSetXY(x,y);                          // Set position
  28         LCDSend(PRAMWR);                        // Now write the pixel to the display
  29         LCDSend(color);                         // Write the data in the specified Color
  30 }
  31
  32 void LCDFill (unsigned char xs,unsigned char ys,unsigned char width,unsigned char height, unsigned char color)
  33 {
  34     unsigned char i,j;
  35
  36     for (i=0;i < height;i++)    // Number of horizontal lines
  37     {
  38                 LCDSetXY(xs,ys+i);              // Goto start of fill area (Top Left)
  39                 LCDSend(PRAMWR);                // Write to display
  40
  41                 for (j=0;j < width;j++) // pixels per line
  42                         LCDSend(color);
  43     }
  44 }
  45
  46 void LCDString (char *lcd_string, const char *font_style,unsigned char x, unsigned char y, unsigned char fcolor, unsigned char bcolor)
  47 {
  48         unsigned int  i;
  49         unsigned char mask=0, px, py, xme, yme, offset;
  50         const char *data;
  51
  52         data = font_style;                      // point to the start of the font table
  53
  54         xme = *data;                            // get font x width
  55         data++;
  56         yme = *data;                            // get font y length
  57         data++;
  58         offset = *data;                         // get data bytes per font
  59
  60         do
  61         {
  62                 // point to data in table to be loaded
  63                 data =  (font_style + offset) + (offset * (int)(*lcd_string - 32));
  64
  65                 for (i=0;i < yme;i++) {
  66                         mask |=0x80;
  67
  68                         for (px=x; px < (x + xme); px++) {
  69                                 py= y + i;
  70
  71                                 if (*data & mask)       LCDSetPixel (px,py,fcolor);
  72                                 else                            LCDSetPixel (px,py,bcolor);
  73
  74                                 mask>>=1;
  75                         }
  76                         data++;
  77                 }
  78                 x+=xme;
  79
  80                 lcd_string++;                                           // next character in string
  81
  82         } while(*lcd_string !='\0');                    // keep spitting chars out until end of string
  83 }
  84
  85 void LCDReset(void)
  86 {
  87         LED_A_ON();
  88         SetupSpi(SPI_LCD_MODE);
  89         LOW(GPIO_LRST);
  90         SpinDelay(100);
  91
  92         HIGH(GPIO_LRST);
  93         SpinDelay(100);
  94         LED_A_OFF();
  95 }
  96
  97 void LCDInit(void)
  98 {
  99         int i;
 100
 101         LCDReset();
 102
 103         LCDSend(PSWRESET);                      // software reset
 104         SpinDelay(100);
 105         LCDSend(PSLEEPOUT);                     // exit sleep mode
 106         LCDSend(PBSTRON);                       // booster on
 107         LCDSend(PDISPON);                       // display on
 108         LCDSend(PNORON);                        // normal on
 109         LCDSend(PMADCTL);                       // rotate display 180 deg
 110         LCDSend(0xC0);
 111
 112         LCDSend(PCOLMOD);                       // color mode
 113         LCDSend(0x02);                          // 8bpp color mode
 114
 115     LCDSend(PSETCON);                   // set contrast
 116     LCDSend(0xDC);
 117
 118         // clear display
 119     LCDSetXY(0,0);
 120         LCDSend(PRAMWR);                        // Write to display
 121         i=LCD_XRES*LCD_YRES;
 122         while(i--) LCDSend(WHITE);
 123 }