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: radio-sensor.c,v 1.7 2010/08/25 19:30:53 nifi Exp $ 00032 */ 00033 00034 #include "lib/sensors.h" 00035 #include "dev/cc2420.h" 00036 #include "dev/radio-sensor.h" 00037 00038 const struct sensors_sensor radio_sensor; 00039 static int active; 00040 00041 /*---------------------------------------------------------------------------*/ 00042 static int 00043 value(int type) 00044 { 00045 switch(type) { 00046 case RADIO_SENSOR_LAST_PACKET: 00047 return cc2420_last_correlation; 00048 case RADIO_SENSOR_LAST_VALUE: 00049 default: 00050 return cc2420_last_rssi; 00051 } 00052 } 00053 /*---------------------------------------------------------------------------*/ 00054 static int 00055 configure(int type, int c) 00056 { 00057 if(type == SENSORS_ACTIVE) { 00058 active = 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 active; 00071 } 00072 return 0; 00073 } 00074 /*---------------------------------------------------------------------------*/ 00075 SENSORS_SENSOR(radio_sensor, RADIO_SENSOR, 00076 value, configure, status);