leds-arch.c

/*
 * Copyright (c) 2015 NXP B.V.
 * 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 NXP B.V. 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 NXP B.V. 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 NXP B.V. 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.
 *
 * Author: Theo van Daele <theo.van.daele@nxp.com>
 *
 */
#include "contiki.h"
#include "leds.h"
#include <AppHardwareApi.h>
 
#define LED_G  (1 << 16)
#define LED_R  (1 << 17)
 
static volatile leds_mask_t leds;
 
/*---------------------------------------------------------------------------*/
void
leds_arch_init(void)
{
  vAHI_DioSetDirection(0, LED_R | LED_G);
  vAHI_DioSetOutput(0, LED_R | LED_G);     /* Default off */
  leds = 0;
}
/*---------------------------------------------------------------------------*/
leds_mask_t
leds_arch_get(void)
{
  return leds;
}
/*---------------------------------------------------------------------------*/
void
leds_arch_set(leds_mask_t c)
{
  uint32 on_mask = 0;
  uint32 off_mask = 0;
 
  if(c & LEDS_GREEN) {
    on_mask |= LED_G;
  } else {
    off_mask |= LED_G;
  } if(c & LEDS_RED) {
    on_mask |= LED_R;
  } else {
    off_mask |= LED_R;
  } vAHI_DioSetOutput(on_mask, off_mask);
  /* Both LEDs can not be switched on at the same time.
     Will result in both leds being OFF */
  if(on_mask == (LED_R | LED_G)) {
    leds = 0;
  } else {
    leds = c;
  }
}