nes-proj/platform/iris/dev/leds-arch.c
2011-07-15 16:36:24 +09:00

68 lines
2.8 KiB
C

/*
* Copyright (c) 2009, University of Colombo School of Computing
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
* @(#)$$
*/
/**
* \file
* LED architecture of the MICAz port.
* \author
* Kasun Hewage <kasun.ch@gmail.com>
*/
#include "contiki-conf.h"
#include "dev/leds.h"
#include <avr/io.h>
/*---------------------------------------------------------------------------*/
void leds_arch_init(void)
{
LEDS_PxDIR |= (LEDS_CONF_RED | LEDS_CONF_GREEN | LEDS_CONF_YELLOW);
LEDS_PxOUT |= (LEDS_CONF_RED | LEDS_CONF_GREEN | LEDS_CONF_YELLOW);
}
/*---------------------------------------------------------------------------*/
unsigned char leds_arch_get(void)
{
return ((LEDS_PxOUT & LEDS_CONF_RED) ? 0 : LEDS_RED)
| ((LEDS_PxOUT & LEDS_CONF_GREEN) ? 0 : LEDS_GREEN)
| ((LEDS_PxOUT & LEDS_CONF_YELLOW) ? 0 : LEDS_YELLOW);
}
/*---------------------------------------------------------------------------*/
void leds_arch_set(unsigned char leds)
{
LEDS_PxOUT = (LEDS_PxOUT & ~(LEDS_CONF_RED|LEDS_CONF_GREEN|LEDS_CONF_YELLOW))
| ((leds & LEDS_RED) ? 0 : LEDS_CONF_RED)
| ((leds & LEDS_GREEN) ? 0 : LEDS_CONF_GREEN)
| ((leds & LEDS_YELLOW) ? 0 : LEDS_CONF_YELLOW);
}
/*---------------------------------------------------------------------------*/