From 3079ccda1c6d82058c801bf8192c616230a2ef93 Mon Sep 17 00:00:00 2001
From: "Jan \"Yenya\" Kasprzak" <kas@fi.muni.cz>
Date: Wed, 1 May 2013 14:47:31 +0200
Subject: [PATCH] Power management - make every module enable power for its own
 HW.

---
 projects/step-up/adc.c  | 4 ++++
 projects/step-up/main.c | 5 ++---
 projects/step-up/pwm.c  | 3 +++
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/projects/step-up/adc.c b/projects/step-up/adc.c
index f06cbc5..daf7bfe 100644
--- a/projects/step-up/adc.c
+++ b/projects/step-up/adc.c
@@ -1,5 +1,6 @@
 #include <avr/io.h>
 #include <avr/interrupt.h>
+#include <avr/power.h>
 #include <avr/sleep.h>
 
 #include "lights.h"
@@ -132,6 +133,9 @@ void init_adc()
 	current_slow_adc = NUM_ADCS;
 	current_adc = 0;
 
+	power_adc_enable();
+	ACSR |= _BV(ACD);	// but disable the analog comparator
+
 	ADCSRA = _BV(ADEN)			// enable
 		| _BV(ADPS1) | _BV(ADPS0)	// CLK/8 = 125 kHz
 		// | _BV(ADPS2)			// CLK/16 = 62.5 kHz
diff --git a/projects/step-up/main.c b/projects/step-up/main.c
index 55e2ef7..20f339e 100644
--- a/projects/step-up/main.c
+++ b/projects/step-up/main.c
@@ -9,6 +9,8 @@
 
 static void hw_setup()
 {
+	power_all_disable();
+
 	wdt_enable(WDTO_1S);
 
 	//init_battery();
@@ -67,9 +69,6 @@ int main(void)
 {
 	init_log();
 
-	power_usi_disable(); // Once for lifetime
-	ACSR |= _BV(ACD);    // disable analog comparator
-
 	log_set_state(3);
 
 	hw_setup();
diff --git a/projects/step-up/pwm.c b/projects/step-up/pwm.c
index f16aaa3..18a1425 100644
--- a/projects/step-up/pwm.c
+++ b/projects/step-up/pwm.c
@@ -1,5 +1,6 @@
 #include <avr/io.h>
 #include <avr/interrupt.h>
+#include <avr/power.h>
 #include <util/delay.h>
 #include <util/atomic.h>
 
@@ -24,6 +25,8 @@ static void inline enable_pll()
 
 void init_pwm()
 {
+	power_timer1_enable();
+
 	enable_pll();
 
 	TCCR1 = _BV(CTC1) | _BV(CS10);	// no clock prescaling
-- 
2.39.3