firmware/main.c

   1 #include <avr/io.h>
   2 #include <util/delay.h>
   3 #include <avr/sleep.h>
   4 #include <avr/interrupt.h>
   5 #include <avr/power.h>
   6 #include <avr/wdt.h>
   7
   8 #include "lights.h"
   9
  10 static void hw_setup()
  11 {
  12         wdt_enable(WDTO_1S);
  13
  14         init_battery();
  15         init_pwm();
  16         init_adc();
  17         init_tmr();
  18         init_buttons();
  19
  20         init_pwmled();
  21         init_gpio();
  22         init_ambient();
  23         init_pattern();
  24         init_control();
  25
  26         set_sleep_mode(SLEEP_MODE_IDLE);
  27 }
  28
  29 static void hw_suspend()
  30 {
  31         susp_pwm();
  32         susp_adc();
  33         susp_tmr();
  34         susp_gpio();
  35         susp_ambient();
  36         susp_buttons();
  37
  38         wdt_disable();
  39 }
  40
  41 void power_down()
  42 {
  43         hw_suspend();
  44
  45         do {
  46                 // G'night
  47                 set_sleep_mode(SLEEP_MODE_PWR_DOWN);
  48                 sleep_enable();
  49                 sleep_bod_disable();
  50                 sei();
  51                 sleep_cpu();
  52
  53                 // G'morning
  54                 cli();
  55                 sleep_disable();
  56
  57                 // allow wakeup by long button-press only
  58         } while (!buttons_wait_for_release());
  59
  60         // ok, so I will wake up
  61         hw_setup();
  62 }
  63
  64 int main(void)
  65 {
  66         init_log();
  67
  68         power_usi_disable(); // Once for lifetime
  69         ACSRA |= _BV(ACD);   // disable analog comparator
  70
  71         log_set_state(3);
  72
  73         hw_setup();
  74         power_down();
  75
  76         sei();
  77 #if 1
  78         while (1) {
  79                 wdt_reset();
  80                 sleep_mode();
  81         }
  82 #endif
  83
  84 #if 0
  85         DDRB |= _BV(PB2);
  86         while (1) {
  87                 PORTB |=  _BV( PB2 );
  88                 _delay_ms(200);
  89                 PORTB &=~ _BV( PB2 );
  90                 _delay_ms(200);
  91         }
  92 #endif
  93 }