bounce.c

tinyos2.0版本驱动

/*
 * Copyright (c) 2008 Johns Hopkins University.
 * All rights reserved.
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for any purpose, without fee, and without written
 * agreement is hereby granted, provided that the above copyright
 * notice, the (updated) modification history and the author appear in
 * all copies of this source code.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDERS OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, LOSS OF USE, DATA,
 * OR PROFITS) 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.
*/

/**
 * @author Chieh-Jan Mike Liang <[e-mail]>
 */

#include "tosthread.h"
#include "tosthread_leds.h"
#include "tosthread_amradio.h"

//Initialize variables associated with each thread
tosthread_t bounceThread0;
tosthread_t bounceThread1;
tosthread_t bounceThread2;

void bounceThread0_start(void* arg);
void bounceThread1_start(void* arg);
void bounceThread2_start(void* arg);

void tosthread_main(void* arg) {
  amRadioStart();
  
  tosthread_create(&bounceThread0, bounceThread0_start, NULL, 300);
  tosthread_create(&bounceThread1, bounceThread1_start, NULL, 300);
  tosthread_create(&bounceThread2, bounceThread2_start, NULL, 300);
}

void bounceThread0_start(void *arg) {
  message_t msg0;
  
  for(;;) {
    while (amRadioSend(AM_BROADCAST_ADDR, &msg0, 0, 20) == EBUSY) {}
    led0Off();
    
    if(amRadioReceive(&msg0, 5000, 20) == SUCCESS) {
      led0On();
    }
    
    tosthread_sleep(500);
  }
}

void bounceThread1_start(void *arg) {
  message_t msg1;
  
  for(;;) {
    while (amRadioSend(AM_BROADCAST_ADDR, &msg1, 0, 21) == EBUSY) {}
    led1Off();
    
    if(amRadioReceive(&msg1, 5000, 21) == SUCCESS) {
      led1On();
    }
    
    tosthread_sleep(500);
  }
}

void bounceThread2_start(void *arg) {
  message_t msg2;
  
  for(;;) {
    while (amRadioSend(AM_BROADCAST_ADDR, &msg2, 0, 22) == EBUSY) {}
    led2Off();
    
    if(amRadioReceive(&msg2, 5000, 22) == SUCCESS) {
      led2On();
    }
    
    tosthread_sleep(500);
  }
}