1 files changed, 92 insertions, 0 deletions
diff --git a/software/avr.lib/led.c b/software/avr.lib/led.c
new file mode 100644
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--- /dev/null
+++ b/software/avr.lib/led.c
@@ -0,0 +1,92 @@
+/*
+ *  spreadspace avr utils
+ *
+ *
+ *  Copyright (C) 2012 Christian Pointner <equinox@spreadspace.org>
+ *
+ *  This file is part of spreadspace avr utils.
+ *
+ *  spreadspace avr utils is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  any later version.
+ *
+ *  spreadspace avr utils is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <avr/io.h>
+
+#include "led.h"
+
+#if defined(__BOARD_arduinoUno__) || defined(__BOARD_AvrNetIo__)
+#define HAS_LED 0
+#else
+#define HAS_LED 1
+#endif
+
+#if defined(__BOARD_teensy1__) || defined(__BOARD_teensy1pp__)
+#define LED_DIR 0
+#else
+#define LED_DIR 1
+#endif
+
+#if defined(__BOARD_teensy1__) || defined(__BOARD_teensy1pp__) || defined(__BOARD_teensy2__) || defined(__BOARD_teensy2pp__)
+#define LED_PORT PORTD
+#define LED_DDR DDRD
+#define LED_PINNUM 6
+#endif
+
+#if defined(__BOARD_hhd70dongle__)
+#define LED_PORT PORTE
+#define LED_DDR DDRE
+#define LED_PINNUM 6
+#endif
+
+#if defined(__BOARD_arduino2009v2__) || defined(__BOARD_arduino2009__) || defined(__BOARD_arduino10000__) || defined(__BOARD_arduinoNG__)
+#define LED_PORT PORTB
+#define LED_DDR DDRB
+#define LED_PINNUM 5
+#endif
+
+void led_init(void)
+{
+#if HAS_LED == 1
+  led_off();
+  LED_DDR = 1<<LED_PINNUM;
+#endif
+}
+
+void led_on(void)
+{
+#if HAS_LED == 1
+#if LED_DIR == 1
+  LED_PORT |= 1<<LED_PINNUM;
+#else
+  LED_PORT &= ~(1<<LED_PINNUM);
+#endif
+#endif
+}
+
+void led_off(void)
+{
+#if HAS_LED == 1
+#if LED_DIR == 1
+  LED_PORT &= ~(1<<LED_PINNUM);
+#else
+  LED_PORT |= 1<<LED_PINNUM;
+#endif
+#endif
+}
+
+void led_toggle(void)
+{
+#if HAS_LED == 1
+  LED_PORT ^= 1<<LED_PINNUM;
+#endif
+}