Contiki 2.6

leds-arch.c

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00001 /*
00002  * Copyright (c) 2010, Swedish Institute of Computer Science.
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  * 1. Redistributions of source code must retain the above copyright
00009  *    notice, this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright
00011  *    notice, this list of conditions and the following disclaimer in the
00012  *    documentation and/or other materials provided with the distribution.
00013  * 3. Neither the name of the Institute nor the names of its contributors
00014  *    may be used to endorse or promote products derived from this software
00015  *    without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
00018  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
00021  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00022  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00023  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00024  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00025  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00026  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00027  * SUCH DAMAGE.
00028  *
00029  * This file is part of the Contiki operating system.
00030  *
00031  */
00032 
00033 /**
00034  * \file
00035  *         A leds implementation for the sentilla usb platform
00036  * \author
00037  *         Adam Dunkels <adam@sics.se>
00038  *         Niclas Finne <nfi@sics.se>
00039  *         Joakim Eriksson <joakime@sics.se>
00040  */
00041 
00042 #include "contiki-conf.h"
00043 #include "dev/leds.h"
00044 
00045 /*---------------------------------------------------------------------------*/
00046 void
00047 leds_arch_init(void)
00048 {
00049   LEDS_PxDIR |= (LEDS_CONF_RED | LEDS_CONF_GREEN);
00050   LEDS_PxOUT = (LEDS_CONF_RED | LEDS_CONF_GREEN);
00051 }
00052 /*---------------------------------------------------------------------------*/
00053 unsigned char
00054 leds_arch_get(void)
00055 {
00056   unsigned char leds;
00057   leds = LEDS_PxOUT;
00058   return ((leds & LEDS_CONF_RED) ? 0 : LEDS_RED)
00059     | ((leds & LEDS_CONF_GREEN) ? 0 : LEDS_GREEN);
00060 }
00061 /*---------------------------------------------------------------------------*/
00062 void
00063 leds_arch_set(unsigned char leds)
00064 {
00065   LEDS_PxOUT = (LEDS_PxOUT & ~(LEDS_CONF_RED|LEDS_CONF_GREEN))
00066     | ((leds & LEDS_RED) ? 0 : LEDS_CONF_RED)
00067     | ((leds & LEDS_GREEN) ? 0 : LEDS_CONF_GREEN);
00068 }
00069 /*---------------------------------------------------------------------------*/