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         pattern_init();
  24
  25         set_sleep_mode(SLEEP_MODE_IDLE);
  26 }
  27
  28 static void hw_suspend()
  29 {
  30         susp_pwm();
  31         susp_adc();
  32         susp_tmr();
  33         susp_gpio();
  34         susp_buttons();
  35
  36         wdt_disable();
  37 }
  38
  39 void power_down()
  40 {
  41         hw_suspend();
  42
  43         do {
  44                 // G'night
  45                 set_sleep_mode(SLEEP_MODE_PWR_DOWN);
  46                 sleep_enable();
  47                 sleep_bod_disable();
  48                 sei();
  49                 sleep_cpu();
  50
  51                 // G'morning
  52                 cli();
  53                 sleep_disable();
  54
  55                 // allow wakeup by long button-press only
  56         } while (!buttons_wait_for_release());
  57
  58         // ok, so I will wake up
  59         hw_setup();
  60 }
  61
  62 int main(void)
  63 {
  64         log_init();
  65
  66         power_usi_disable(); // Once for lifetime
  67         ACSRA |= _BV(ACD);   // disable analog comparator
  68
  69         log_set_state(3);
  70
  71         hw_setup();
  72         power_down();
  73
  74         sei();
  75 #if 1
  76         while (1) {
  77                 wdt_reset();
  78                 sleep_mode();
  79         }
  80 #endif
  81
  82 #if 0
  83         DDRB |= _BV(PB2);
  84         while (1) {
  85                 PORTB |=  _BV( PB2 );
  86                 _delay_ms(200);
  87                 PORTB &=~ _BV( PB2 );
  88                 _delay_ms(200);
  89         }
  90 #endif
  91 }