From 82fd0d1138ae4110eeb7303e841869b161cad968 Mon Sep 17 00:00:00 2001
From: Olaf Rempel <razzor@kopf-tisch.de>
Date: Fri, 5 Oct 2007 23:18:51 +0200
Subject: [PATCH] cleanups

---
 lipo-charger.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/lipo-charger.c b/lipo-charger.c
index 17bec29..b69e2ed 100644
--- a/lipo-charger.c
+++ b/lipo-charger.c
@@ -195,6 +195,7 @@ ISR(ADC_vect)
 		ADMUX = CH1;
 	}
 
+	/* start ADC again */
 	ADCSRA |= (1<<ADSC);
 }
 
@@ -218,7 +219,7 @@ ISR(TIMER0_OVF_vect)
 
 	/*
 	 * charge with constant voltage of 12.45V
-	 * and a current limit of 1.6V
+	 * and a current limit of 1.6A
 	 */
 	if (mode == MOD_CHARGING) {
 		if (voltage < 12425 && current < 15500)
@@ -228,30 +229,23 @@ ISR(TIMER0_OVF_vect)
 		if (voltage > 12450 || current > 16000)
 			if (pwm > 0x00)
 				pwm--;
-	} else {
-		pwm = 0;
-	}
 
-	if (pwm > 0) {
 		OCR1A = pwm;
 		TCCR1A |= (1<<COM1A1);
 	} else {
+		pwm = 0;
 		TCCR1A &= ~(1<<COM1A1);
 	}
 
 	switch (mode) {
 	case MOD_WAITING:
-		/*
-		 * start charging when a voltage > 9V is detected (lipo connected)
-		 */
+		/* start charging when a voltage > 9V is detected (lipo connected) */
 		if (voltage > 9000)
 			mode = MOD_CHARGING;
 		break;
 
 	case MOD_CHARGING:
-		/*
-		 * end charging if voltage > 12.42V and current < 200mA
-		 */
+		/* end charging if voltage > 12.42V and current < 200mA */
 		if (voltage > 12425 && current < 2000)
 			mode = MOD_READY;
 		break;