projects/step-up/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_buttons();
  36
  37         wdt_disable();
  38 }
  39
  40 void power_down()
  41 {
  42         hw_suspend();
  43
  44         do {
  45                 // G'night
  46                 set_sleep_mode(SLEEP_MODE_PWR_DOWN);
  47                 sleep_enable();
  48                 sleep_bod_disable();
  49                 sei();
  50                 sleep_cpu();
  51
  52                 // G'morning
  53                 cli();
  54                 sleep_disable();
  55
  56                 // allow wakeup by long button-press only
  57         } while (!buttons_wait_for_release());
  58
  59         // ok, so I will wake up
  60         hw_setup();
  61 }
  62
  63 int main(void)
  64 {
  65         init_log();
  66
  67         power_usi_disable(); // Once for lifetime
  68         ACSRA |= _BV(ACD);   // disable analog comparator
  69
  70         log_set_state(3);
  71
  72         hw_setup();
  73         power_down();
  74
  75         sei();
  76 #if 1
  77         while (1) {
  78                 wdt_reset();
  79                 sleep_mode();
  80         }
  81 #endif
  82
  83 #if 0
  84         DDRB |= _BV(PB2);
  85         while (1) {
  86                 PORTB |=  _BV( PB2 );
  87                 _delay_ms(200);
  88                 PORTB &=~ _BV( PB2 );
  89                 _delay_ms(200);
  90         }
  91 #endif
  92 }