282 lines
8.2 KiB
Java
282 lines
8.2 KiB
Java
/*
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* Copyright (c) 2009, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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package org.contikios.cooja.emulatedmote;
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import java.util.*;
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import org.apache.log4j.Logger;
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import org.jdom.Element;
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import org.contikios.cooja.*;
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import org.contikios.cooja.interfaces.CustomDataRadio;
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import org.contikios.cooja.interfaces.Position;
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import org.contikios.cooja.interfaces.Radio;
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/**
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* 802.15.4 radio class for COOJA.
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*
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* @author Joakim Eriksson
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*/
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public abstract class Radio802154 extends Radio implements CustomDataRadio {
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private final static boolean DEBUG = false;
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private static final Logger logger = Logger.getLogger(Radio802154.class);
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protected long lastEventTime = 0;
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protected RadioEvent lastEvent = RadioEvent.UNKNOWN;
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protected boolean isInterfered = false;
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private boolean isTransmitting = false;
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protected boolean isReceiving = false;
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// private boolean hasFailedReception = false;
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private boolean radioOn = true;
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private RadioByte lastOutgoingByte = null;
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private RadioByte lastIncomingByte = null;
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private RadioPacket lastOutgoingPacket = null;
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private RadioPacket lastIncomingPacket = null;
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// private int mode;
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protected Mote mote;
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public Radio802154(Mote mote) {
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this.mote = mote;
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}
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int len = 0;
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int expLen = 0;
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byte[] buffer = new byte[127 + 15];
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protected void handleTransmit(byte val) {
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if (len == 0) {
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lastEventTime = mote.getSimulation().getSimulationTime();
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lastEvent = RadioEvent.TRANSMISSION_STARTED;
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if (DEBUG) logger.debug("----- 802.15.4 TRANSMISSION STARTED -----");
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setChanged();
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notifyObservers();
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}
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/* send this byte to all nodes */
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lastOutgoingByte = new RadioByte(val);
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lastEventTime = mote.getSimulation().getSimulationTime();
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lastEvent = RadioEvent.CUSTOM_DATA_TRANSMITTED;
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setChanged();
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notifyObservers();
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buffer[len++] = val;
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logger.debug("802.15.4: " + (val & 0xff) + " transmitted...");
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if (len == 6) {
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expLen = val + 6;
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}
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if (len == expLen) {
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if (DEBUG) logger.debug("----- 802.15.4 CUSTOM DATA TRANSMITTED -----");
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lastOutgoingPacket = Radio802154PacketConverter.fromCC2420ToCooja(buffer);
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lastEventTime = mote.getSimulation().getSimulationTime();
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lastEvent = RadioEvent.PACKET_TRANSMITTED;
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if (DEBUG) logger.debug("----- 802.15.4 PACKET TRANSMITTED -----");
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setChanged();
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notifyObservers();
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lastEventTime = mote.getSimulation().getSimulationTime();
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logger.debug("----- 802.15.4 TRANSMISSION FINISHED -----");
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lastEvent = RadioEvent.TRANSMISSION_FINISHED;
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setChanged();
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notifyObservers();
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len = 0;
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}
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}
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/* Packet radio support */
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@Override
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public RadioPacket getLastPacketTransmitted() {
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return lastOutgoingPacket;
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}
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@Override
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public RadioPacket getLastPacketReceived() {
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return lastIncomingPacket;
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}
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@Override
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public void setReceivedPacket(RadioPacket packet) {
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}
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/* Custom data radio support */
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@Override
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public Object getLastCustomDataTransmitted() {
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return lastOutgoingByte;
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}
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@Override
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public Object getLastCustomDataReceived() {
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return lastIncomingByte;
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}
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@Override
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public void receiveCustomData(Object data) {
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if (data instanceof RadioByte) {
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lastIncomingByte = (RadioByte) data;
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handleReceive(lastIncomingByte.getPacketData()[0]);
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}
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}
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/* General radio support */
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@Override
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public boolean isTransmitting() {
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return isTransmitting;
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}
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@Override
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public boolean isReceiving() {
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return isReceiving;
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}
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@Override
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public boolean isInterfered() {
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return isInterfered;
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}
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protected abstract void handleReceive(byte b);
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protected abstract void handleEndOfReception();
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@Override
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public abstract int getChannel();
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public abstract int getFrequency();
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@Override
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public abstract boolean isRadioOn();
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@Override
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public abstract double getCurrentOutputPower();
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@Override
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public abstract int getCurrentOutputPowerIndicator();
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@Override
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public abstract int getOutputPowerIndicatorMax();
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@Override
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public abstract double getCurrentSignalStrength();
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@Override
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public abstract void setCurrentSignalStrength(double signalStrength);
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/* need to add a few more methods later??? */
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@Override
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public void signalReceptionStart() {
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isReceiving = true;
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// cc2420.setCCA(true);
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// hasFailedReception = mode == CC2420.MODE_TXRX_OFF;
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/* TODO cc2420.setSFD(true); */
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lastEventTime = mote.getSimulation().getSimulationTime();
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lastEvent = RadioEvent.RECEPTION_STARTED;
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if (DEBUG) logger.debug("----- 802.15.4 RECEPTION STARTED -----");
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setChanged();
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notifyObservers();
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}
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@Override
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public void signalReceptionEnd() {
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/* Deliver packet data */
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isReceiving = false;
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// hasFailedReception = false;
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isInterfered = false;
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// cc2420.setCCA(false);
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/* tell the receiver that the packet is ended */
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handleEndOfReception();
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lastEventTime = mote.getSimulation().getSimulationTime();
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lastEvent = RadioEvent.RECEPTION_FINISHED;
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if (DEBUG) logger.debug("----- 802.15.4 RECEPTION FINISHED -----");
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// Exception e = new IllegalStateException("Why finished?");
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// e.printStackTrace();
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setChanged();
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notifyObservers();
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}
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@Override
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public RadioEvent getLastEvent() {
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return lastEvent;
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}
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@Override
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public void interfereAnyReception() {
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isInterfered = true;
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isReceiving = false;
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// hasFailedReception = false;
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lastIncomingPacket = null;
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//cc2420.setCCA(true);
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/* is this ok ?? */
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handleEndOfReception();
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//recv.nextByte(false, (byte)0);
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lastEventTime = mote.getSimulation().getSimulationTime();
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lastEvent = RadioEvent.RECEPTION_INTERFERED;
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/*logger.debug("----- SKY RECEPTION INTERFERED -----");*/
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setChanged();
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notifyObservers();
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}
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@Override
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public Mote getMote() {
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return mote;
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}
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@Override
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public Position getPosition() {
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return mote.getInterfaces().getPosition();
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}
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@Override
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public Collection<Element> getConfigXML() {
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return null;
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}
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@Override
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public void setConfigXML(Collection<Element> configXML, boolean visAvailable) {
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}
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}
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