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
   7 #include "lights.h"
   8
   9 static void hw_setup()
  10 {
  11         init_battery();
  12         init_pwm();
  13         init_adc();
  14         init_tmr();
  15         init_buttons();
  16
  17         init_pwmled();
  18         init_gpio();
  19         init_ambient();
  20         init_pattern();
  21         init_control();
  22
  23         set_sleep_mode(SLEEP_MODE_IDLE);
  24 }
  25
  26 static void hw_suspend()
  27 {
  28         susp_pwm();
  29         susp_adc();
  30         susp_tmr();
  31         susp_gpio();
  32         susp_ambient();
  33         susp_buttons();
  34 }
  35
  36 void power_down()
  37 {
  38         hw_suspend();
  39
  40         do {
  41                 // G'night
  42                 set_sleep_mode(SLEEP_MODE_PWR_DOWN);
  43                 sleep_enable();
  44                 sleep_bod_disable();
  45                 sei();
  46                 sleep_cpu();
  47
  48                 // G'morning
  49                 cli();
  50                 sleep_disable();
  51
  52                 // allow wakeup by long button-press only
  53         } while (!buttons_wait_for_release());
  54
  55         // ok, so I will wake up
  56         hw_setup();
  57 }
  58
  59 int main(void)
  60 {
  61         init_log();
  62
  63         power_usi_disable(); // Once for lifetime
  64         ACSRA |= _BV(ACD);   // disable analog comparator
  65
  66         log_set_state(3);
  67
  68         hw_setup();
  69         power_down();
  70
  71         sei();
  72 #if 1
  73         while (1) {
  74                 cli();
  75                 if (TIMER1_IS_ON()) {
  76                         set_sleep_mode(SLEEP_MODE_IDLE);
  77                 } else if (adc_is_on) {
  78                         set_sleep_mode(SLEEP_MODE_ADC);
  79                 } else {
  80                         set_sleep_mode(SLEEP_MODE_PWR_DOWN);
  81                 }
  82
  83                 sleep_enable();
  84                 // keep BOD active, no sleep_bod_disable();
  85                 sei();
  86                 sleep_cpu();
  87                 sleep_disable();
  88         }
  89 #endif
  90
  91 #if 0
  92         DDRB |= _BV(PB2);
  93         while (1) {
  94                 PORTB |=  _BV( PB2 );
  95                 _delay_ms(200);
  96                 PORTB &=~ _BV( PB2 );
  97                 _delay_ms(200);
  98         }
  99 #endif
 100 }