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         power_all_disable();
  13
  14         init_battery();
  15         init_pwm();
  16         init_adc();
  17         init_wdt();
  18
  19         init_buttons();
  20
  21         init_pwmled();
  22         init_pattern();
  23         init_control();
  24
  25         set_sleep_mode(SLEEP_MODE_IDLE);
  26 }
  27
  28 static void hw_suspend()
  29 {
  30         susp_pwm();
  31         susp_adc();
  32         susp_wdt();
  33
  34         susp_buttons();
  35
  36         power_all_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         init_log();
  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 (pwm_running) {
  76                         set_sleep_mode(SLEEP_MODE_IDLE);
  77                 } else if (adc_running) {
  78                         set_sleep_mode(SLEEP_MODE_ADC);
  79                 } else {
  80                         set_sleep_mode(SLEEP_MODE_PWR_DOWN);
  81                 }
  82                 // keep BOD active, no sleep_bod_disable();
  83                 sei();
  84                 sleep_cpu();
  85                 sleep_disable();
  86         }
  87 #endif
  88
  89 #if 0
  90         DDRB |= _BV(PB2);
  91         while (1) {
  92                 PORTB |=  _BV( PB2 );
  93                 _delay_ms(200);
  94                 PORTB &=~ _BV( PB2 );
  95                 _delay_ms(200);
  96         }
  97 #endif
  98 }