Contiki 2.6
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00001 /* 00002 * Copyright (c) 2006, 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 * $Id: pir-sensor.c,v 1.2 2010/01/14 19:12:31 nifi Exp $ 00030 */ 00031 00032 #include "dev/pir-sensor.h" 00033 #include "lib/simEnvChange.h" 00034 00035 const struct simInterface pir_interface; 00036 const struct sensors_sensor pir_sensor; 00037 00038 // COOJA variables 00039 char simPirChanged; 00040 char simPirIsActive; 00041 char simPirValue = 0; 00042 00043 /*---------------------------------------------------------------------------*/ 00044 static int 00045 value(int type) 00046 { 00047 return simPirValue; 00048 } 00049 /*---------------------------------------------------------------------------*/ 00050 static int 00051 configure(int type, int c) 00052 { 00053 switch(type) { 00054 case SENSORS_HW_INIT: 00055 simPirIsActive = 0; 00056 return 1; 00057 case SENSORS_ACTIVE: 00058 simPirIsActive = c; 00059 return 1; 00060 } 00061 return 0; 00062 } 00063 /*---------------------------------------------------------------------------*/ 00064 static int 00065 status(int type) 00066 { 00067 switch(type) { 00068 case SENSORS_ACTIVE: 00069 case SENSORS_READY: 00070 return simPirIsActive; 00071 } 00072 return 0; 00073 } 00074 /*---------------------------------------------------------------------------*/ 00075 static void 00076 doInterfaceActionsBeforeTick(void) 00077 { 00078 // Check if PIR value has changed 00079 if (simPirIsActive && simPirChanged) { 00080 simPirValue++; 00081 00082 sensors_changed(&pir_sensor); 00083 simPirChanged = 0; 00084 } 00085 } 00086 /*---------------------------------------------------------------------------*/ 00087 static void 00088 doInterfaceActionsAfterTick(void) 00089 { 00090 } 00091 /*---------------------------------------------------------------------------*/ 00092 00093 SIM_INTERFACE(pir_interface, 00094 doInterfaceActionsBeforeTick, 00095 doInterfaceActionsAfterTick); 00096 00097 SENSORS_SENSOR(pir_sensor, PIR_SENSOR, 00098 value, configure, status);