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 void hw_setup()
  11 {
  12         wdt_enable(WDTO_1S);
  13         init_pwm();
  14         init_adc();
  15         init_tmr();
  16         init_buttons();
  17
  18         pwmled_init();
  19         gpio_init();
  20         ambient_init();
  21         pattern_init();
  22
  23         set_sleep_mode(SLEEP_MODE_IDLE);
  24 }
  25
  26 void hw_suspend()
  27 {
  28         susp_pwm();
  29         susp_adc();
  30         susp_tmr();
  31         susp_gpio();
  32         wdt_disable();
  33 }
  34
  35
  36 void power_down()
  37 {
  38         // enable PCINT14, so that user can wake up later
  39         GIMSK |= _BV(PCIE1);
  40         PCMSK1 |= _BV(PCINT14);
  41
  42         // G'night
  43         set_sleep_mode(SLEEP_MODE_PWR_DOWN);
  44         sleep_enable();
  45         sleep_bod_disable();
  46         sei();
  47         sleep_cpu();
  48
  49         // G'morning
  50         cli();
  51
  52         sleep_disable();
  53
  54         // Disable PCINT14
  55         GIMSK &= ~_BV(PCIE1);
  56         PCMSK1 &= ~_BV(PCINT14);
  57
  58         hw_setup();
  59 }
  60
  61
  62 ISR(PCINT_vect)
  63 {
  64         GIMSK &= ~_BV(PCIE1);
  65         PCMSK1 &= ~_BV(PCINT14);
  66 }
  67
  68 int main(void)
  69 {
  70         log_init();
  71         power_usi_disable(); // Once for lifetime
  72
  73         log_set_state(3);
  74
  75         hw_setup();
  76         hw_suspend();
  77         power_down();
  78
  79         sei();
  80 #if 1
  81         while (1) {
  82                 wdt_reset();
  83                 sleep_mode();
  84         }
  85 #endif
  86
  87 #if 0
  88         DDRB |= _BV(PB2);
  89         while (1) {
  90                 PORTB |=  _BV( PB2 );
  91                 _delay_ms(200);
  92                 PORTB &=~ _BV( PB2 );
  93                 _delay_ms(200);
  94         }
  95 #endif
  96 }