cpu/msp430/leds-arch.c

   1 /*
   2  * Copyright (c) 2005, Swedish Institute of Computer Science.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the Institute nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * This file is part of the Configurable Sensor Network Application
  30  * Architecture for sensor nodes running the Contiki operating system.
  31  *
  32  * $Id: leds-arch.c,v 1.1 2006/06/17 22:41:21 adamdunkels Exp $
  33  *
  34  * -----------------------------------------------------------------
  35  *
  36  * Author  : Adam Dunkels, Joakim Eriksson, Niclas Finne
  37  * Created : 2005-11-03
  38  * Updated : $Date: 2006/06/17 22:41:21 $
  39  *           $Revision: 1.1 $
  40  */
  41
  42 #include "contiki-conf.h"
  43 #include "dev/leds.h"
  44
  45 #include <io.h>
  46
  47 /*---------------------------------------------------------------------------*/
  48 void
  49 leds_arch_init(void)
  50 {
  51   LEDS_PxDIR |= (LEDS_CONF_RED | LEDS_CONF_GREEN | LEDS_CONF_YELLOW);
  52   LEDS_PxOUT |= (LEDS_CONF_RED | LEDS_CONF_GREEN | LEDS_CONF_YELLOW);
  53 }
  54 /*---------------------------------------------------------------------------*/
  55 unsigned char
  56 leds_arch_get(void)
  57 {
  58   return ((LEDS_PxOUT & LEDS_CONF_RED) ? 0 : LEDS_RED)
  59     | ((LEDS_PxOUT & LEDS_CONF_GREEN) ? 0 : LEDS_GREEN)
  60     | ((LEDS_PxOUT & LEDS_CONF_YELLOW) ? 0 : LEDS_YELLOW);
  61 }
  62 /*---------------------------------------------------------------------------*/
  63 void
  64 leds_arch_set(unsigned char leds)
  65 {
  66   LEDS_PxOUT = (LEDS_PxOUT & ~(LEDS_CONF_RED|LEDS_CONF_GREEN|LEDS_CONF_YELLOW))
  67     | ((leds & LEDS_RED) ? 0 : LEDS_CONF_RED)
  68     | ((leds & LEDS_GREEN) ? 0 : LEDS_CONF_GREEN)
  69     | ((leds & LEDS_YELLOW) ? 0 : LEDS_CONF_YELLOW);
  70 }
  71 /*---------------------------------------------------------------------------*/