/*
 *  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
}