Contiki 2.6
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00001 /* 00002 * Copyright (c) 2005, 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 * @(#)$Id: beeper.c,v 1.3 2010/01/15 10:37:04 nifi Exp $ 00032 */ 00033 #include "contiki-esb.h" 00034 00035 PROCESS(beeper_process, "Beeper"); 00036 00037 AUTOSTART_PROCESSES(&beeper_process); 00038 00039 static struct etimer etimer; 00040 00041 static struct pt beeper_pt; 00042 00043 static 00044 PT_THREAD(beeper_thread(struct pt *pt)) 00045 { 00046 PT_BEGIN(pt); 00047 00048 while(1) { 00049 PT_WAIT_UNTIL(pt, etimer_expired(&etimer)); 00050 etimer_reset(&etimer); 00051 leds_invert(LEDS_RED); 00052 beep(); 00053 00054 PT_WAIT_UNTIL(pt, etimer_expired(&etimer)); 00055 etimer_reset(&etimer); 00056 leds_invert(LEDS_RED); 00057 } 00058 00059 PT_END(pt); 00060 } 00061 00062 PROCESS_THREAD(beeper_process, ev, data) 00063 { 00064 PROCESS_BEGIN(); 00065 00066 etimer_set(&etimer, CLOCK_SECOND / 2); 00067 PT_INIT(&beeper_pt); 00068 00069 button_sensor.configure(SENSORS_ACTIVE, 1); 00070 00071 while(1) { 00072 00073 beeper_thread(&beeper_pt); 00074 00075 PROCESS_WAIT_EVENT(); 00076 00077 if(ev == PROCESS_EVENT_EXIT) { 00078 break; 00079 } else if(ev == sensors_event && 00080 data == &button_sensor) { 00081 leds_invert(LEDS_YELLOW); 00082 } 00083 00084 } 00085 PROCESS_END(); 00086 }