X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?p=bike-lights.git;a=blobdiff_plain;f=firmware%2Fmain.c;h=5db08b17d7335ed07b370b775de44416819978e8;hp=efebdabafb5d2aa30571b65e49ca1683b006a2c6;hb=33c451a9ba18c59b405d735b2420bc7b549643a4;hpb=a06ea914a745c95ca286ea41337ff5bbf3d02cbd

diff --git a/firmware/main.c b/firmware/main.c
index efebdab..5db08b1 100644
--- a/firmware/main.c
+++ b/firmware/main.c
@@ -2,12 +2,14 @@
 #include <util/delay.h>
 #include <avr/sleep.h>
 #include <avr/interrupt.h>
+#include <avr/power.h>
 #include <avr/wdt.h>
 
 #include "lights.h"
 
 void hw_setup()
 {
+	wdt_enable(WDTO_1S);
 	init_pwm();
 	init_adc();
 	init_tmr();
@@ -21,17 +23,59 @@ void hw_setup()
 	set_sleep_mode(SLEEP_MODE_IDLE);
 }
 
-int main(void)
+void hw_suspend()
 {
-	log_init();
-	wdt_enable(WDTO_1S);
+	susp_pwm();
+	susp_adc();
+	susp_tmr();
+	susp_gpio();
+	wdt_disable();
+}
+
+
+void power_down()
+{
+	// enable PCINT14, so that user can wake up later
+        GIMSK |= _BV(PCIE1);
+        PCMSK1 |= _BV(PCINT14);
+
+	// G'night
+        set_sleep_mode(SLEEP_MODE_PWR_DOWN);
+        sleep_enable();
+        sleep_bod_disable();
+        sei();
+        sleep_cpu();
+
+	// G'morning
+	cli();
+
+        sleep_disable();
 
-	_delay_ms(100);
+	// Disable PCINT14
+	GIMSK &= ~_BV(PCIE1);
+	PCMSK1 &= ~_BV(PCINT14);
 
 	hw_setup();
+}
+
+
+ISR(PCINT_vect)
+{
+	GIMSK &= ~_BV(PCIE1);
+	PCMSK1 &= ~_BV(PCINT14);
+}
+
+int main(void)
+{
+	log_init();
+	power_usi_disable(); // Once for lifetime
 
 	log_set_state(3);
 
+	hw_setup();
+	hw_suspend();
+	power_down();
+
 	sei();
 #if 1
 	while (1) {