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

   1 //-----------------------------------------------------------------------------
   2 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   3 // at your option, any later version. See the LICENSE.txt file for the text of
   4 // the license.
   5 //-----------------------------------------------------------------------------
   6 // LCD code
   7 //-----------------------------------------------------------------------------
   8 #include "LCD.h"
   9
  10 void LCDSend(unsigned int data)
  11 {
  12         // 9th bit set for data, clear for command
  13         while ((AT91C_BASE_SPI->SPI_SR & AT91C_SPI_TXEMPTY) == 0);      // wait for the transfer to complete
  14         // For clarity's sake we pass data with 9th bit clear and commands with 9th
  15         // bit set since they're implemented as defines, se we need to invert bit
  16         AT91C_BASE_SPI->SPI_TDR = data^0x100;                                                   // Send the data/command
  17 }
  18
  19 void LCDSetXY(unsigned char x, unsigned char y)
  20 {
  21         LCDSend(PPASET);                        // page start/end ram
  22         LCDSend(y);                                     // Start Page to display to
  23         LCDSend(131);                           // End Page to display to
  24
  25         LCDSend(PCASET);                        // column start/end ram
  26         LCDSend(x);                                     // Start Column to display to
  27         LCDSend(131);                           // End Column to display to
  28 }
  29
  30 void LCDSetPixel(unsigned char x, unsigned char y, unsigned char color)
  31 {
  32         LCDSetXY(x,y);                          // Set position
  33         LCDSend(PRAMWR);                        // Now write the pixel to the display
  34         LCDSend(color);                         // Write the data in the specified Color
  35 }
  36
  37 void LCDFill (unsigned char xs,unsigned char ys,unsigned char width,unsigned char height, unsigned char color)
  38 {
  39     unsigned char i,j;
  40
  41     for (i=0;i < height;i++)    // Number of horizontal lines
  42     {
  43                 LCDSetXY(xs,ys+i);              // Goto start of fill area (Top Left)
  44                 LCDSend(PRAMWR);                // Write to display
  45
  46                 for (j=0;j < width;j++) // pixels per line
  47                         LCDSend(color);
  48     }
  49 }
  50
  51 void LCDString (char *lcd_string, const char *font_style,unsigned char x, unsigned char y, unsigned char fcolor, unsigned char bcolor)
  52 {
  53         unsigned int  i;
  54         unsigned char mask=0, px, py, xme, yme, offset;
  55         const char *data;
  56
  57         data = font_style;                      // point to the start of the font table
  58
  59         xme = *data;                            // get font x width
  60         data++;
  61         yme = *data;                            // get font y length
  62         data++;
  63         offset = *data;                         // get data bytes per font
  64
  65         do
  66         {
  67                 // point to data in table to be loaded
  68                 data =  (font_style + offset) + (offset * (int)(*lcd_string - 32));
  69
  70                 for (i=0;i < yme;i++) {
  71                         mask |=0x80;
  72
  73                         for (px=x; px < (x + xme); px++) {
  74                                 py= y + i;
  75
  76                                 if (*data & mask)       LCDSetPixel (px,py,fcolor);
  77                                 else                            LCDSetPixel (px,py,bcolor);
  78
  79                                 mask>>=1;
  80                         }
  81                         data++;
  82                 }
  83                 x+=xme;
  84
  85                 lcd_string++;                                           // next character in string
  86
  87         } while(*lcd_string !='\0');                    // keep spitting chars out until end of string
  88 }
  89
  90 void LCDReset(void)
  91 {
  92         LED_A_ON();
  93         SetupSpi(SPI_LCD_MODE);
  94         LOW(GPIO_LRST);
  95         SpinDelay(100);
  96
  97         HIGH(GPIO_LRST);
  98         SpinDelay(100);
  99         LED_A_OFF();
 100 }
 101
 102 void LCDInit(void)
 103 {
 104         int i;
 105
 106         LCDReset();
 107
 108         LCDSend(PSWRESET);                      // software reset
 109         SpinDelay(100);
 110         LCDSend(PSLEEPOUT);                     // exit sleep mode
 111         LCDSend(PBSTRON);                       // booster on
 112         LCDSend(PDISPON);                       // display on
 113         LCDSend(PNORON);                        // normal on
 114         LCDSend(PMADCTL);                       // rotate display 180 deg
 115         LCDSend(0xC0);
 116
 117         LCDSend(PCOLMOD);                       // color mode
 118         LCDSend(0x02);                          // 8bpp color mode
 119
 120     LCDSend(PSETCON);                   // set contrast
 121     LCDSend(0xDC);
 122
 123         // clear display
 124     LCDSetXY(0,0);
 125         LCDSend(PRAMWR);                        // Write to display
 126         i=LCD_XRES*LCD_YRES;
 127         while(i--) LCDSend(WHITE);
 128
 129   // test text on different colored backgrounds
 130         LCDString(" The quick brown fox  ",     (char *)&FONT6x8,1,1+8*0,WHITE  ,BLACK );
 131         LCDString("  jumped over the     ",     (char *)&FONT6x8,1,1+8*1,BLACK  ,WHITE );
 132         LCDString("     lazy dog.        ",     (char *)&FONT6x8,1,1+8*2,YELLOW ,RED   );
 133         LCDString(" AaBbCcDdEeFfGgHhIiJj ",     (char *)&FONT6x8,1,1+8*3,RED    ,GREEN );
 134         LCDString(" KkLlMmNnOoPpQqRrSsTt ",     (char *)&FONT6x8,1,1+8*4,MAGENTA,BLUE  );
 135         LCDString("UuVvWwXxYyZz0123456789",     (char *)&FONT6x8,1,1+8*5,BLUE   ,YELLOW);
 136         LCDString("`-=[]_;',./~!@#$%^&*()",     (char *)&FONT6x8,1,1+8*6,BLACK  ,CYAN  );
 137         LCDString("     _+{}|:\\\"<>?     ",(char *)&FONT6x8,1,1+8*7,BLUE  ,MAGENTA);
 138
 139         // color bands
 140         LCDFill(0, 1+8* 8, 132, 8, BLACK);
 141         LCDFill(0, 1+8* 9, 132, 8, WHITE);
 142         LCDFill(0, 1+8*10, 132, 8, RED);
 143         LCDFill(0, 1+8*11, 132, 8, GREEN);
 144         LCDFill(0, 1+8*12, 132, 8, BLUE);
 145         LCDFill(0, 1+8*13, 132, 8, YELLOW);
 146         LCDFill(0, 1+8*14, 132, 8, CYAN);
 147         LCDFill(0, 1+8*15, 132, 8, MAGENTA);
 148
 149 }