betty/betty.c

   1 /*
   2  * betty.c - alternative firmware for the betty tv ;)
   3  *
   4  * author: hackbard@hackdaworld.org
   5  *
   6  */
   7
   8 /* includes */
   9 #include "betty.h"
  10
  11 /*
  12  * global variables
  13  */
  14
  15 const char announce[]="betty - live from flash at 0x80000000! ;)\r\n";
  16 const char d1_txt[]="betty";
  17 const char d2_txt[]="- alphablend -";
  18 u8 contrast;
  19 t_button button;
  20
  21 /*
  22  * functions
  23  */
  24
  25 #define cc1100_init     spi1_init(8,SPI_MASTER,8)
  26
  27 void display_string_page(u8 x,u8 p,u8 *s,u8 f,u8 o,u8 sp) {
  28
  29         while(*(s)) {
  30                 if(x==DISPLAY_DIMX) {
  31                         p+=1;
  32                         x=o;
  33                 }
  34                 display_font_page(x,p,(u8 *)default_font+(*(s)<<3),f);
  35                 x+=sp;
  36                 s++;
  37         }
  38 }
  39
  40 void __attribute__ ((interrupt("IRQ"))) input_event(void) {
  41
  42         u8 noret,tries;
  43
  44         /* button scan */
  45         if(button_get_event(&button)) {
  46                 switch(button.key[0]) {
  47                         case BUTTON_POWER:
  48                                 display_logo((u8 *)default_logo);
  49                                 break;
  50                         case BUTTON_DOWN:
  51                                 if(contrast>0x00)
  52                                         contrast-=1;
  53                                 DISPLAY_SET_CONTRAST(contrast);
  54                                 break;
  55                         case BUTTON_UP:
  56                                 if(contrast<0x3f)
  57                                         contrast+=1;
  58                                 DISPLAY_SET_CONTRAST(contrast);
  59                                 break;
  60                         case BUTTON_A:
  61                                 display_fill_screen(DISPLAY_FILL_W);
  62                                 break;
  63                         case BUTTON_B:
  64                                 display_fill_screen(DISPLAY_FILL_LG);
  65                                 break;
  66                         case BUTTON_C:
  67                                 display_fill_screen(DISPLAY_FILL_DG);
  68                                 break;
  69                         case BUTTON_D:
  70                                 display_fill_screen(DISPLAY_FILL_B);
  71                                 break;
  72                         case BUTTON_1:
  73                                 display_rectangle_page(4,2,60,5,
  74                                                        DISPLAY_FILL_B,0xff);
  75                                 break;
  76                         case BUTTON_2:
  77                                 display_rectangle_page(40,5,50,5,
  78                                                        DISPLAY_FILL_LG,0x7f);
  79                                 break;
  80                         case BUTTON_3:
  81                                 break;
  82                         case BUTTON_4:
  83                                 display_font_page(42,18,
  84                                                   (u8 *)default_font+(0x34<<3),
  85                                                   DISPLAY_FILL_B);
  86                                 break;
  87                         case BUTTON_5:
  88                                 display_font_page(50,18,
  89                                                   (u8 *)default_font+(0x35<<3),
  90                                                   DISPLAY_FILL_DG);
  91                                 break;
  92                         case BUTTON_6:
  93                                 display_font_page(58,18,
  94                                                   (u8 *)default_font+(0x36<<3),
  95                                                   DISPLAY_FILL_W);
  96                                 break;
  97                         case BUTTON_7:
  98                                 break;
  99                         case BUTTON_8:
 100                                 break;
 101                         case BUTTON_BETTY:
 102                                 display_string_page(50,13,(u8 *)d1_txt,
 103                                                     DISPLAY_FILL_B,0,8);
 104                                 break;
 105                         case BUTTON_EXIT:
 106                                 display_string_page(10,8,(u8 *)d2_txt,
 107                                                     DISPLAY_FILL_B,0,8);
 108                                 break;
 109                         default:
 110                                 display_clear_screen();
 111                                 break;
 112                 }
 113         }
 114
 115         /* resume the interrupt at button release */
 116         noret=1;
 117         while(noret) {
 118                 tries=0xff;
 119                 noret=1;
 120                 while(tries--) {
 121                         noret=IOPIN0&(1<<30)?0:1;
 122                         if(noret)
 123                                 break;
 124                 }
 125         }
 126         interrupt_ack();
 127         interrupt_ext_ir_set(INTERRUPT_EXT3);
 128 }
 129
 130 /*
 131  * main function
 132  */
 133
 134 int main() {
 135
 136         /* variables */
 137
 138         /* system init */
 139         pll_init();
 140         pin_init();
 141         ext_mem_init();
 142
 143         /* memory mapping - dirty! */
 144         if((void *)announce<(void *)FLASH_BANK0)
 145                 mmap_init(MEMTYPE_RAM);
 146         else
 147                 mmap_init(MEMTYPE_EXT);
 148
 149         /* uart init */
 150         uart0_init();
 151
 152         /* display init */
 153         display_bl_init();
 154
 155         /* button init */
 156         button.mode=BUTTON_INT;
 157         button_init(&button);
 158         button_set_retries(&button,30);
 159
 160         /* flash init */
 161         flash_init();
 162
 163         /* display init */
 164         display_init();
 165         contrast=0x38;
 166
 167         /* interrupt init */
 168         interrupt_init();
 169         interrupt_ext_ir_config(INTERRUPT_EXT3,INTERRUPT_EXT_NOWAKE,
 170                                 INTERRUPT_EXT_MODE_EDGE,
 171                                 INTERRUPT_EXT_POLAR_LOW);
 172         interrupt_ext_ir_set(INTERRUPT_EXT3);
 173         interrupt_enable(INTERRUPT_EINT3,INTERRUPT_MODE_VIRQ,
 174                          0,(u32)input_event);
 175
 176         /*
 177          * start it ...
 178          */
 179
 180         /* toggle the display back light */
 181         display_bl_toggle();
 182
 183         /* announce */
 184         uart0_send_string((char *)announce);
 185
 186
 187         while(1) {
 188                 pause(0xffffff);
 189                 uart0_send_string((char *)announce);
 190         }
 191
 192         return 0;
 193 }