/*
* Copyright (c) 2009, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* 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.
*
*/
package org.contikios.cooja.avrmote.interfaces;
import org.apache.log4j.Logger;
import org.contikios.cooja.ClassDescription;
import org.contikios.cooja.Mote;
import org.contikios.cooja.avrmote.MicaZMote;
import org.contikios.cooja.emulatedmote.Radio802154;
import org.contikios.cooja.interfaces.CustomDataRadio;
import avrora.sim.FiniteStateMachine;
import avrora.sim.FiniteStateMachine.Probe;
import avrora.sim.platform.MicaZ;
import avrora.sim.radio.CC2420Radio;
import avrora.sim.radio.Medium;
/**
* CC2420 to COOJA wrapper.
*
* @author Joakim Eriksson
*/
@ClassDescription("CC2420")
public class MicaZRadio extends Radio802154 {
private static Logger logger = Logger.getLogger(MicaZRadio.class);
private MicaZ micaz;
private CC2420Radio cc2420;
// private int mode;
Medium.Transmitter trans;
CC2420Radio.Receiver recv;
FiniteStateMachine fsm;
public MicaZRadio(Mote mote) {
super(mote);
micaz = ((MicaZMote)mote).getMicaZ();
cc2420 = (CC2420Radio) micaz.getDevice("radio");
trans = cc2420.getTransmitter();
fsm = cc2420.getFiniteStateMachine();
recv = (CC2420Radio.Receiver) cc2420.getReceiver();
trans.insertProbe(new Medium.Probe.Empty() {
public void fireBeforeTransmit(Medium.Transmitter t, byte val) {
handleTransmit(val);
}
});
fsm.insertProbe(new Probe() {
public void fireBeforeTransition(int arg0, int arg1) {
}
public void fireAfterTransition(int arg0, int arg1) {
//System.out.println("CC2420 - MicaZ FSM: " + arg0 + " " + arg1);
RadioEvent re = null;
if (arg1 >= 3) {
re = RadioEvent.HW_ON;
} else {
if (arg0 > 3 && arg1 == 2) {
/* likely that radio dips into 2 before going back to 3 */
} else {
re = RadioEvent.HW_OFF;
}
}
if (re != null) {
lastEvent = re;
lastEventTime = MicaZRadio.this.mote.getSimulation().getSimulationTime();
setChanged();
notifyObservers();
}
}
});
}
public int getChannel() {
// cc2420.updateActiveFrequency();
// return cc2420.getActiveChannel();
return 0;
}
public int getFrequency() {
// cc2420.updateActiveFrequency();
return (int) cc2420.getFrequency();
}
public boolean isRadioOn() {
FiniteStateMachine fsm = cc2420.getFiniteStateMachine();
/* based on reading the source code it seems that the fsm state = 3 means on */
//System.out.println("COOJA: cc2420 FSM: " + fsm.getCurrentState());
return fsm.getCurrentState() >= 3;
}
public void signalReceptionStart() {
// cc2420.setCCA(true);
// hasFailedReception = mode == CC2420.MODE_TXRX_OFF;
super.signalReceptionStart();
}
public double getCurrentOutputPower() {
return 1.1;//cc2420.getOutputPower();
}
public int getCurrentOutputPowerIndicator() {
return 31; //cc2420.getOutputPowerIndicator();
}
public int getOutputPowerIndicatorMax() {
return 31;
}
public double getCurrentSignalStrength() {
return 1;//cc2420.getRSSI();
}
public void setCurrentSignalStrength(double signalStrength) {
//cc2420.setRSSI((int) signalStrength);
}
protected void handleEndOfReception() {
/* tell the receiver that the packet is ended */
recv.nextByte(false, (byte)0);
}
protected void handleReceive(byte b) {
//System.out.println("MicaZ: Received: " + (b &0xff));
recv.nextByte(true, (byte)b);
}
public boolean canReceiveFrom(CustomDataRadio radio) {
if (radio.getClass().equals(this.getClass())) {
return true;
}
return false;
}
}