From 3d53f303314461517b8d9fa7851257c881eaadb8 Mon Sep 17 00:00:00 2001
From: Ain <41307858+nero@users.noreply.github.com>
Date: Sun, 28 Jan 2018 20:10:26 +0000
Subject: [PATCH] Fix missing DDR initialisation for led driver

---
 boards/nano.mk | 3 ++-
 drivers/led.c  | 4 ++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/boards/nano.mk b/boards/nano.mk
index d3d0873..6458dd4 100644
--- a/boards/nano.mk
+++ b/boards/nano.mk
@@ -1,6 +1,7 @@
 MCU_TARGET = atmega328p
 MCU_FREQ = 16000000UL
-CPPFLAGS += -DLED_PORT=PORTB -DLED_PIN=5
+
+CPPFLAGS += -DLED_DDR=DDRB -DLED_PORT=PORTB -DLED_PIN=5
 
 AVRDUDE_TYPE = arduino
 AVRDUDE_TTY = /dev/ttyUSB0
diff --git a/drivers/led.c b/drivers/led.c
index 0a01e9c..b8f6668 100644
--- a/drivers/led.c
+++ b/drivers/led.c
@@ -1,6 +1,10 @@
 #include "led.h"
 #include <avr/io.h>
 
+void __attribute__ ((naked)) __attribute__ ((section (".init5"))) led_init() {
+	LED_DDR |= (1 << LED_PIN);
+}
+
 void led(uint8_t on) {
 	if (on) {
 		LED_PORT |= (1 << LED_PIN);