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
   9 #include "proxmark3.h"
  10 #include "apps.h"
  11 #include "LCD.h"
  12 #include "fonts.h"
  13
  14 void LCDSend(unsigned int data)
  15 {
  16         // 9th bit set for data, clear for command
  17         while ((AT91C_BASE_SPI->SPI_SR & AT91C_SPI_TXEMPTY) == 0);      // wait for the transfer to complete
  18         // For clarity's sake we pass data with 9th bit clear and commands with 9th
  19         // bit set since they're implemented as defines, se we need to invert bit
  20         AT91C_BASE_SPI->SPI_TDR = data^0x100;                                                   // Send the data/command
  21 }
  22
  23 void LCDSetXY(unsigned char x, unsigned char y)
  24 {
  25         LCDSend(PPASET);                        // page start/end ram
  26         LCDSend(y);                                     // Start Page to display to
  27         LCDSend(131);                           // End Page to display to
  28
  29         LCDSend(PCASET);                        // column start/end ram
  30         LCDSend(x);                                     // Start Column to display to
  31         LCDSend(131);                           // End Column to display to
  32 }
  33
  34 void LCDSetPixel(unsigned char x, unsigned char y, unsigned char color)
  35 {
  36         LCDSetXY(x,y);                          // Set position
  37         LCDSend(PRAMWR);                        // Now write the pixel to the display
  38         LCDSend(color);                         // Write the data in the specified Color
  39 }
  40
  41 void LCDFill (unsigned char xs,unsigned char ys,unsigned char width,unsigned char height, unsigned char color)
  42 {
  43     unsigned char i,j;
  44
  45     for (i=0;i < height;i++)    // Number of horizontal lines
  46     {
  47                 LCDSetXY(xs,ys+i);              // Goto start of fill area (Top Left)
  48                 LCDSend(PRAMWR);                // Write to display
  49
  50                 for (j=0;j < width;j++) // pixels per line
  51                         LCDSend(color);
  52     }
  53 }
  54
  55 void LCDString (char *lcd_string, const char *font_style,unsigned char x, unsigned char y, unsigned char fcolor, unsigned char bcolor)
  56 {
  57         unsigned int  i;
  58         unsigned char mask=0, px, py, xme, yme, offset;
  59         const char *data;
  60
  61         data = font_style;                      // point to the start of the font table
  62
  63         xme = *data;                            // get font x width
  64         data++;
  65         yme = *data;                            // get font y length
  66         data++;
  67         offset = *data;                         // get data bytes per font
  68
  69         do
  70         {
  71                 // point to data in table to be loaded
  72                 data =  (font_style + offset) + (offset * (int)(*lcd_string - 32));
  73
  74                 for (i=0;i < yme;i++) {
  75                         mask |=0x80;
  76
  77                         for (px=x; px < (x + xme); px++) {
  78                                 py= y + i;
  79
  80                                 if (*data & mask)       LCDSetPixel (px,py,fcolor);
  81                                 else                            LCDSetPixel (px,py,bcolor);
  82
  83                                 mask>>=1;
  84                         }
  85                         data++;
  86                 }
  87                 x+=xme;
  88
  89                 lcd_string++;                                           // next character in string
  90
  91         } while(*lcd_string !='\0');                    // keep spitting chars out until end of string
  92 }
  93
  94 void LCDReset(void)
  95 {
  96         LED_A_ON();
  97         SetupSpi(SPI_LCD_MODE);
  98         LOW(GPIO_LRST);
  99         SpinDelay(100);
 100
 101         HIGH(GPIO_LRST);
 102         SpinDelay(100);
 103         LED_A_OFF();
 104 }
 105
 106 void LCDInit(void)
 107 {
 108         int i;
 109
 110         LCDReset();
 111
 112         LCDSend(PSWRESET);                      // software reset
 113         SpinDelay(100);
 114         LCDSend(PSLEEPOUT);                     // exit sleep mode
 115         LCDSend(PBSTRON);                       // booster on
 116         LCDSend(PDISPON);                       // display on
 117         LCDSend(PNORON);                        // normal on
 118         LCDSend(PMADCTL);                       // rotate display 180 deg
 119         LCDSend(0xC0);
 120
 121         LCDSend(PCOLMOD);                       // color mode
 122         LCDSend(0x02);                          // 8bpp color mode
 123
 124     LCDSend(PSETCON);                   // set contrast
 125     LCDSend(0xDC);
 126
 127         // clear display
 128     LCDSetXY(0,0);
 129         LCDSend(PRAMWR);                        // Write to display
 130         i=LCD_XRES*LCD_YRES;
 131         while(i--) LCDSend(WHITE);
 132
 133   // test text on different colored backgrounds
 134         LCDString(" The quick brown fox  ",     (char *)&FONT6x8,1,1+8*0,WHITE  ,BLACK );
 135         LCDString("  jumped over the     ",     (char *)&FONT6x8,1,1+8*1,BLACK  ,WHITE );
 136         LCDString("     lazy dog.        ",     (char *)&FONT6x8,1,1+8*2,YELLOW ,RED   );
 137         LCDString(" AaBbCcDdEeFfGgHhIiJj ",     (char *)&FONT6x8,1,1+8*3,RED    ,GREEN );
 138         LCDString(" KkLlMmNnOoPpQqRrSsTt ",     (char *)&FONT6x8,1,1+8*4,MAGENTA,BLUE  );
 139         LCDString("UuVvWwXxYyZz0123456789",     (char *)&FONT6x8,1,1+8*5,BLUE   ,YELLOW);
 140         LCDString("`-=[]_;',./~!@#$%^&*()",     (char *)&FONT6x8,1,1+8*6,BLACK  ,CYAN  );
 141         LCDString("     _+{}|:\\\"<>?     ",(char *)&FONT6x8,1,1+8*7,BLUE  ,MAGENTA);
 142
 143         // color bands
 144         LCDFill(0, 1+8* 8, 132, 8, BLACK);
 145         LCDFill(0, 1+8* 9, 132, 8, WHITE);
 146         LCDFill(0, 1+8*10, 132, 8, RED);
 147         LCDFill(0, 1+8*11, 132, 8, GREEN);
 148         LCDFill(0, 1+8*12, 132, 8, BLUE);
 149         LCDFill(0, 1+8*13, 132, 8, YELLOW);
 150         LCDFill(0, 1+8*14, 132, 8, CYAN);
 151         LCDFill(0, 1+8*15, 132, 8, MAGENTA);
 152
 153 }