From 8de6b2c199e67ae46e325efaa161b417742de977 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?King=20K=C3=A9vin?= <kingkevin@cuvoodoo.info>
Date: Sat, 28 Feb 2015 13:21:33 +0100
Subject: [PATCH] change to more generic IO mapping

---
 main.c |  9 +++++----
 main.h | 27 ++++-----------------------
 2 files changed, 9 insertions(+), 27 deletions(-)

diff --git a/main.c b/main.c
index ec11c90..0c3a470 100644
--- a/main.c
+++ b/main.c
@@ -12,6 +12,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+
 #include <stdint.h> // Standard Integer Types
 #include <stdio.h> // Standard IO facilities
 #include <stdlib.h> // General utilities
@@ -31,19 +32,19 @@
 /* switch off LED */
 void led_off(void)
 {
-	PORTB &= ~(1<<LED); // remove power to LED
+	LED_PORT &= ~(1<<LED_IO); // remove power to LED
 }
 
 /* switch on LED */
 void led_on(void)
 {
-	PORTB |= (1<<LED); // provide power to LED
+	LED_PORT |= (1<<LED_IO); // provide power to LED
 }
 
 /* toggle LED */
 void led_toggle(void)
 {
-	PINB |= (1<<LED);
+	LED_PIN |= (1<<LED_IO);
 }
 
 /* disable watchdog when booting */
@@ -66,7 +67,7 @@ void io_init(void)
 
 	/* gpio */
 	/* LED */
-	DDRB |= (1<<LED); // LED is driven by pin (set as output)
+	LED_DDR |= (1<<LED_IO); // LED is driven by pin (set as output)
 	led_off();
 
 	sei(); /* enable interrupts */
diff --git a/main.h b/main.h
index 31251d9..283f722 100644
--- a/main.h
+++ b/main.h
@@ -12,31 +12,12 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-/* This is the main part of the waschkarte auflader program.
- */
 
 /* peripherals */
 /* LED to indicate scale reading
  * pin: PB5, LED L
  */
-#define LED PB5
-/* high when the scale is on
- * pin: PD5, PCINT21, D5
- */
-#define SCALE_ON PD5
-/* PWM weight signal
- * PWM frequency is ~3Hz
- * high time increases with increasing weight (propotionnally)
- * low time decreases with increasing weight
- * signal level is 1V
- * positive pin of analog comparator used to measure PWM
- * pin: PD6, AIN0, D6
-*/
-#define SCALE_PWM PD6
-/* negative pin of analog comparator
- * set at 0.2-0.8V using voltage divider
- * used to detect PWM signal change
- * pin: PD7, AIN1, D7
- */
-#define REF_PWM PD7
-
+#define LED_PORT PORTB
+#define LED_DDR DDRB
+#define LED_PIN PINB
+#define LED_IO PB5