mirror of
https://github.com/oliverschmidt/contiki.git
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requesting mote wakeup when receiving radio data + code cleanup (faster code)
This commit is contained in:
fros4943
parent
51f210b37f
commit
36d09eaa69
@ -26,7 +26,7 @@
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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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* $Id: TR1001Radio.java,v 1.15 2009/10/28 15:58:43 fros4943 Exp $
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* $Id: TR1001Radio.java,v 1.16 2009/12/02 16:39:42 fros4943 Exp $
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*/
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package se.sics.cooja.mspmote.interfaces;
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@ -47,6 +47,7 @@ import javax.swing.JPanel;
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import org.apache.log4j.Logger;
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import org.jdom.Element;
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import se.sics.cooja.COOJARadioPacket;
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import se.sics.cooja.ClassDescription;
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import se.sics.cooja.Mote;
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import se.sics.cooja.MoteTimeEvent;
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@ -62,109 +63,96 @@ import se.sics.mspsim.core.USART;
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import se.sics.mspsim.core.USARTListener;
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/**
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* TR1001 radio interface on ESB platform. Assumes driver specifics such as
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* preambles, synchbytes, GCR coding, CRC16.
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* TR1001 radio interface on ESB platform.
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* Assumes Contiki driver specifics such as preambles, synchbytes, GCR coding, CRC16.
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*
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* @author Fredrik Osterlind
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*/
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@ClassDescription("TR1001 Radio")
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public class TR1001Radio extends Radio implements USARTListener,
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CustomDataRadio {
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public class TR1001Radio extends Radio implements USARTListener, CustomDataRadio {
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private static Logger logger = Logger.getLogger(TR1001Radio.class);
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/**
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* Delay used when feeding packet data to radio chip (us). 416us corresponds
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* to 19200 bit/s with encoding.
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* Cross-level:
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* Delay used when feeding packet data to radio chip (us).
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* 416us corresponds to 19200 bit/s with encoding.
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*/
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public static final long DELAY_BETWEEN_BYTES = 3 * 416;
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public static final long DELAY_BETWEEN_BYTES = 416;
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private ESBMote mote;
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private boolean radioOn = true;
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private boolean isTransmitting = false;
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private boolean isReceiving = false;
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private boolean isInterfered = false;
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private RadioEvent lastEvent = RadioEvent.UNKNOWN;
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private long lastEventTime = 0;
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private USART radioUSART = null;
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private RadioPacket lastIncomingPacket = null;
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private RadioPacket receivedPacket = null;
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private RadioPacket sentPacket = null;
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private RadioPacket packetFromMote = null;
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/* Outgoing packet data buffer */
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private TR1001RadioByte[] outgoingData = new TR1001RadioByte[128]; /* TODO Adaptive max size */
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private int outgoingDataLength = 0;
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private int millisSinceLastSend = -1;
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/* Outgoing byte data buffer */
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private TR1001RadioByte tr1001ByteFromMote = null;
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private TR1001RadioByte lastIncomingByte = null;
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private long transmissionStartCycles = -1;
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private byte receivedByte, sentByte;
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private TR1001RadioPacketConverter tr1001PacketConverter = null;
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private double signalStrength = 0;
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private boolean radioOn = true; /* TODO MSPSim: Not implemented */
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private double signalStrength = 0; /* TODO MSPSim: Not implemented */
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/**
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* Creates an interface to the TR1001 radio at mote.
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*
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* @param mote
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* Radio's mote.
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* @see Mote
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* @see se.sics.cooja.MoteInterfaceHandler
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* @param mote Mote
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*/
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public TR1001Radio(Mote mote) {
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this.mote = (ESBMote) mote;
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/* Start listening to CPU's USART */
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IOUnit usart = this.mote.getCPU().getIOUnit("USART 0");
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if (usart instanceof USART) {
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if (usart != null && usart instanceof USART) {
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radioUSART = (USART) usart;
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radioUSART.setUSARTListener(this);
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} else {
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throw new RuntimeException("Bad TR1001 IO: " + usart);
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}
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}
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/* Packet radio support */
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public RadioPacket getLastPacketTransmitted() {
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return packetFromMote;
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return sentPacket;
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}
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public RadioPacket getLastPacketReceived() {
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return lastIncomingPacket;
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return receivedPacket;
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}
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public void setReceivedPacket(RadioPacket packet) {
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lastIncomingPacket = packet;
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receivedPacket = packet;
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/* Convert to TR1001 packet data */
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TR1001RadioByte[] byteArr = TR1001RadioPacketConverter.fromCoojaToTR1001(packet);
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final ArrayDeque<TR1001RadioByte> byteList = new ArrayDeque<TR1001RadioByte>();
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for (TR1001RadioByte b : byteArr) {
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byteList.addLast(b);
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byte[] arr = TR1001RadioPacketConverter.fromCoojaToTR1001(packet);
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final ArrayDeque<Byte> data = new ArrayDeque<Byte>();
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for (Byte b : arr) {
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data.addLast(b);
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}
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/* Feed incoming bytes to radio "slowly" via time events */
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TimeEvent receiveCrosslevelDataEvent = new MoteTimeEvent(mote, 0) {
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public void execute(long t) {
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/* Stop receiving data when buffer is empty */
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if (byteList.isEmpty() || isInterfered) {
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byteList.clear();
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if (data.isEmpty()) {
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return;
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}
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TR1001RadioByte b = byteList.pop();
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radioUSART.byteReceived(b.getByte());
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byte b = data.pop();
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if (isInterfered) {
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radioUSART.byteReceived(0xFF); /* Corrupted data */
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} else {
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radioUSART.byteReceived(b);
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}
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mote.requestImmediateWakeup();
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mote.getSimulation().scheduleEvent(this, t + DELAY_BETWEEN_BYTES);
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}
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@ -174,90 +162,83 @@ public class TR1001Radio extends Radio implements USARTListener,
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/* Custom data radio support */
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public Object getLastCustomDataTransmitted() {
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return tr1001ByteFromMote;
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return sentByte;
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}
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public Object getLastCustomDataReceived() {
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return lastIncomingByte;
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return receivedByte;
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}
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public void receiveCustomData(Object data) {
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if (data instanceof TR1001RadioByte) {
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lastIncomingByte = ((TR1001RadioByte) data);
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if (!(data instanceof Byte)) {
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logger.fatal("Received bad custom data: " + data);
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return;
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}
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receivedByte = (Byte) data;
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if (radioUSART.isReceiveFlagCleared()) {
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/*logger.info("----- TR1001 RECEIVED BYTE -----");*/
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radioUSART.byteReceived(lastIncomingByte.getByte());
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mote.requestImmediateWakeup();
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if (radioUSART.isReceiveFlagCleared()) {
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/*logger.info("----- TR1001 RECEIVED BYTE -----");*/
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if (isInterfered) {
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radioUSART.byteReceived(0xFF); /* Corrupted data */
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} else {
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logger.warn("----- TR1001 RECEIVED BYTE DROPPED -----");
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radioUSART.byteReceived(receivedByte);
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}
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} else {
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logger.warn(mote.getSimulation().getSimulationTime() + ": ----- TR1001 RECEIVED BYTE DROPPED -----");
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}
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}
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/* USART listener support */
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public void dataReceived(USART source, int data) {
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if (outgoingDataLength == 0 && !isTransmitting()) {
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if (!isTransmitting()) {
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/* New transmission discovered */
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/*logger.info("----- NEW TR1001 TRANSMISSION DETECTED -----");*/
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tr1001PacketConverter = new TR1001RadioPacketConverter();
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isTransmitting = true;
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transmissionStartCycles = mote.getCPU().cycles;
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lastEvent = RadioEvent.TRANSMISSION_STARTED;
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lastEventTime = mote.getSimulation().getSimulationTime();
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isTransmitting = true;
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this.setChanged();
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this.notifyObservers();
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}
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// Remember recent radio activity
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millisSinceLastSend = 0;
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if (!followupTransmissionEvent.isScheduled()) {
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/* Timeout transmission after some time */
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if (timeoutTransmission.isScheduled()) {
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logger.warn("Timeout TX event already scheduled");
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timeoutTransmission.remove();
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}
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mote.getSimulation().scheduleEvent(
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followupTransmissionEvent,
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mote.getSimulation().getSimulationTime() + Simulation.MILLISECOND);
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timeoutTransmission,
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mote.getSimulation().getSimulationTime() + 40*Simulation.MILLISECOND
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);
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}
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if (outgoingDataLength >= outgoingData.length) {
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logger.warn("----- TR1001 DROPPING OUTGOING BYTE (buffer overflow) -----");
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return;
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}
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// Deliver byte to radio medium as custom data
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/* logger.debug("----- TR1001 SENT BYTE -----"); */
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/* Deliver custom data byte */
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lastEvent = RadioEvent.CUSTOM_DATA_TRANSMITTED;
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tr1001ByteFromMote = new TR1001RadioByte((byte) data);
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sentByte = (byte) data;
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this.setChanged();
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this.notifyObservers();
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outgoingData[outgoingDataLength++] = tr1001ByteFromMote;
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// Feed to application level immediately
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boolean finished = tr1001PacketConverter
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.fromTR1001ToCoojaAccumulated(tr1001ByteFromMote);
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/* Detect full packet */
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boolean finished = tr1001PacketConverter.fromTR1001ToCoojaAccumulated(sentByte);
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if (finished) {
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timeoutTransmission.remove();
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/* Transmission finished - deliver packet immediately */
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if (tr1001PacketConverter.accumulatedConversionIsOk()) {
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packetFromMote = tr1001PacketConverter.getAccumulatedConvertedCoojaPacket();
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/* Notify observers of new prepared packet */
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/* Deliver packet */
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/* logger.info("----- TR1001 DELIVERED PACKET -----"); */
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sentPacket = tr1001PacketConverter.getAccumulatedConvertedCoojaPacket();
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lastEvent = RadioEvent.PACKET_TRANSMITTED;
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this.setChanged();
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this.notifyObservers();
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}
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// Reset counters and wait for next packet
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outgoingDataLength = 0;
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millisSinceLastSend = -1;
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// Signal we are done transmitting
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/* Finish transmission */
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isTransmitting = false;
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lastEvent = RadioEvent.TRANSMISSION_FINISHED;
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this.setChanged();
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this.notifyObservers();
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TR1001Radio.this.setChanged();
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TR1001Radio.this.notifyObservers();
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/* logger.info("----- TR1001 TRANSMISSION ENDED -----"); */
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}
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}
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@ -279,12 +260,14 @@ public class TR1001Radio extends Radio implements USARTListener,
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}
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public int getChannel() {
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/* TODO Implement */
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return -1;
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}
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public void signalReceptionStart() {
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lastEvent = RadioEvent.RECEPTION_STARTED;
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isReceiving = true;
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isInterfered = false;
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this.setChanged();
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this.notifyObservers();
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}
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@ -304,7 +287,7 @@ public class TR1001Radio extends Radio implements USARTListener,
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public void interfereAnyReception() {
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if (!isInterfered()) {
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isInterfered = true;
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lastIncomingPacket = null;
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receivedPacket = null;
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lastEventTime = mote.getSimulation().getSimulationTime();
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lastEvent = RadioEvent.RECEPTION_INTERFERED;
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@ -340,33 +323,25 @@ public class TR1001Radio extends Radio implements USARTListener,
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return mote.getInterfaces().getPosition();
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}
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private TimeEvent followupTransmissionEvent = new MoteTimeEvent(mote, 0) {
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private TimeEvent timeoutTransmission = new MoteTimeEvent(mote, 0) {
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public void execute(long t) {
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if (isTransmitting()) {
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millisSinceLastSend++;
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// Detect transmission end due to inactivity
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if (millisSinceLastSend > 5) {
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/* Dropping packet due to inactivity */
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packetFromMote = null;
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/* Reset counters and wait for next packet */
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outgoingDataLength = 0;
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millisSinceLastSend = -1;
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/* Signal we are done transmitting */
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isTransmitting = false;
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lastEvent = RadioEvent.TRANSMISSION_FINISHED;
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TR1001Radio.this.setChanged();
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TR1001Radio.this.notifyObservers();
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/*logger.debug("----- NULL TRANSMISSION ENDED -----");*/
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}
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/* Reschedule as long as node is transmitting */
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mote.getSimulation().scheduleEvent(this, t + Simulation.MILLISECOND);
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if (!isTransmitting()) {
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/* Nothing to do */
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return;
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}
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logger.warn("TR1001 transmission timed out, delivering empty packet");
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/* XXX Timeout: We may need to deliver an empty radio packet here */
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sentPacket = new COOJARadioPacket(new byte[0]);
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lastEvent = RadioEvent.PACKET_TRANSMITTED;
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TR1001Radio.this.setChanged();
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TR1001Radio.this.notifyObservers();
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isTransmitting = false;
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lastEvent = RadioEvent.TRANSMISSION_FINISHED;
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TR1001Radio.this.setChanged();
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TR1001Radio.this.notifyObservers();
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}
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};
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@ -1,57 +0,0 @@
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/*
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* Copyright (c) 2007, 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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* $Id: TR1001RadioByte.java,v 1.2 2009/05/26 14:33:30 fros4943 Exp $
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*/
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package se.sics.cooja.mspmote.interfaces;
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/**
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* TR1001 radio byte.
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*
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* @author Fredrik Osterlind
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*/
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public class TR1001RadioByte {
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private byte b;
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/**
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* Creates new TR1001 radio byte
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*/
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public TR1001RadioByte(byte b) {
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this.b = b;
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}
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/**
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* @return Byte
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*/
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public byte getByte() {
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return b;
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}
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}
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@ -26,7 +26,7 @@
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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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* $Id: TR1001RadioPacketConverter.java,v 1.4 2009/05/26 14:33:30 fros4943 Exp $
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* $Id: TR1001RadioPacketConverter.java,v 1.5 2009/12/02 16:39:42 fros4943 Exp $
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*/
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package se.sics.cooja.mspmote.interfaces;
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@ -68,7 +68,7 @@ public class TR1001RadioPacketConverter {
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final static int ESB_FOOTER_LENGTH = 2;
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private ArrayList<TR1001RadioByte> originalData = new ArrayList<TR1001RadioByte>();
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private ArrayList<Byte> originalData = new ArrayList<Byte>();
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private enum AccumulatedConversionState {
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TR1001_PREAMBLE, TR1001_SYNCH, ESB_LEN1, ESB_LEN2, ESB_DATA, ESB_CRC1, ESB_CRC2, ESB_POST,
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@ -106,11 +106,10 @@ public class TR1001RadioPacketConverter {
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* The returned array typically needs to be feeded to the emulated "slowly",
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* i.e. one by one and using interrupts.
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*
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* @param coojaPacket
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* COOJA radio packet
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* @param coojaPacket COOJA radio packet
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* @return TR1001 radio packet
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*/
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public static TR1001RadioByte[] fromCoojaToTR1001(RadioPacket coojaPacket) {
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public static byte[] fromCoojaToTR1001(RadioPacket coojaPacket) {
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byte[] coojaPacketData = coojaPacket.getPacketData();
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@ -142,10 +141,8 @@ public class TR1001RadioPacketConverter {
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tr1001Frame[TR1001_HEADER_LENGTH + encodedData.length + 2] = (byte) 0x33;
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tr1001Frame[TR1001_HEADER_LENGTH + encodedData.length + 3] = (byte) 0xcc;
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TR1001RadioByte[] tr1001Bytes = new TR1001RadioByte[tr1001Frame.length];
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for (int i=0; i < tr1001Frame.length; i++) {
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tr1001Bytes[i] = new TR1001RadioByte(tr1001Frame[i]);
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}
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byte[] tr1001Bytes = new byte[tr1001Frame.length];
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System.arraycopy(tr1001Frame, 0, tr1001Bytes, 0, tr1001Frame.length);
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return tr1001Bytes;
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}
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@ -159,25 +156,22 @@ public class TR1001RadioPacketConverter {
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* - Read length header
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* - Remove both length header and CRC footer
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*
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* @param tr1001Bytes TR1001 bytes
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* @param tr1001xxBytes TR1001 bytes
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* @param tr1001DataLength TR1001 specified packet length
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* @return COOJA radio packet
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*/
|
||||
public static ConvertedRadioPacket fromTR1001ToCooja(TR1001RadioByte[] tr1001Bytes, int tr1001DataLength) {
|
||||
|
||||
byte[] tr1001Data = new byte[tr1001Bytes.length];
|
||||
for (int i=0; i < tr1001Bytes.length; i++) {
|
||||
tr1001Data[i] = tr1001Bytes[i].getByte();
|
||||
}
|
||||
public static ConvertedRadioPacket fromTR1001ToCooja(byte[] data, int tr1001DataLength) {
|
||||
|
||||
/* Remove TR1001 specifics: preamble, synch and trail bytes */
|
||||
System.arraycopy(tr1001Data, TR1001_HEADER_LENGTH, tr1001Data, 0,
|
||||
tr1001DataLength - TR1001_HEADER_LENGTH - TR1001_FOOTER_LENGTH);
|
||||
tr1001DataLength = tr1001DataLength - TR1001_HEADER_LENGTH
|
||||
- TR1001_FOOTER_LENGTH;
|
||||
tr1001DataLength -= (TR1001_HEADER_LENGTH + TR1001_FOOTER_LENGTH);
|
||||
System.arraycopy(
|
||||
data, TR1001_HEADER_LENGTH,
|
||||
data, 0,
|
||||
tr1001DataLength
|
||||
);
|
||||
|
||||
/* GCR decode */
|
||||
byte[] decodedData = gcrCoder.gcrDecode(tr1001Data, tr1001DataLength);
|
||||
byte[] decodedData = gcrCoder.gcrDecode(data, tr1001DataLength);
|
||||
|
||||
if (decodedData != null) {
|
||||
/* Decoding succeded, fetch length from the two first bytes */
|
||||
@ -195,11 +189,11 @@ public class TR1001RadioPacketConverter {
|
||||
System.arraycopy(decodedData, ESB_HEADER_LENGTH, packetData, 0,
|
||||
dataLength);
|
||||
|
||||
return new ConvertedRadioPacket(packetData, tr1001Data);
|
||||
return new ConvertedRadioPacket(packetData, data);
|
||||
}
|
||||
|
||||
logger.warn("No cross-level conversion available: TR1001 GCR decoding failed");
|
||||
return new ConvertedRadioPacket(new byte[0], tr1001Data);
|
||||
return new ConvertedRadioPacket(new byte[0], data);
|
||||
}
|
||||
|
||||
/**
|
||||
@ -242,9 +236,8 @@ public class TR1001RadioPacketConverter {
|
||||
* @param tr1001Byte New TR1001 packet data byte
|
||||
* @return True if conversion finished (either successful of failed)
|
||||
*/
|
||||
public boolean fromTR1001ToCoojaAccumulated(TR1001RadioByte tr1001Byte) {
|
||||
byte b = tr1001Byte.getByte();
|
||||
originalData.add(tr1001Byte);
|
||||
public boolean fromTR1001ToCoojaAccumulated(byte b) {
|
||||
originalData.add(b);
|
||||
|
||||
if (accumulatedConversionState == AccumulatedConversionState.TR1001_PREAMBLE) {
|
||||
if (b == (byte) 0xaa || b == (byte) 0xff) {
|
||||
@ -323,7 +316,7 @@ public class TR1001RadioPacketConverter {
|
||||
|
||||
byte[] originalArr = new byte[originalData.size()];
|
||||
for (int i=0; i < originalArr.length; i++) {
|
||||
originalArr[i] = (byte) originalData.get(i).getByte();
|
||||
originalArr[i] = originalData.get(i);
|
||||
}
|
||||
|
||||
return new ConvertedRadioPacket(dataArrayByte, originalArr);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user