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using time events for following up on ongoing transmissions

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fros4943 2008-10-29 09:13:12 +00:00
parent 5d7ed0eab2
commit eb08babd4c
1 changed files with 38 additions and 32 deletions
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70
tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/interfaces/TR1001Radio.java
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@ -26,7 +26,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE. * SUCH DAMAGE.
* *
* $Id: TR1001Radio.java,v 1.6 2008/03/18 16:47:17 fros4943 Exp $ * $Id: TR1001Radio.java,v 1.7 2008/10/29 09:13:12 fros4943 Exp $
*/ */
package se.sics.cooja.mspmote.interfaces; package se.sics.cooja.mspmote.interfaces;
@ -41,6 +41,7 @@ import org.jdom.Element;
import se.sics.mspsim.core.*; import se.sics.mspsim.core.*;
import se.sics.cooja.*; import se.sics.cooja.*;
import se.sics.cooja.TimeEvent;
import se.sics.cooja.interfaces.*; import se.sics.cooja.interfaces.*;
import se.sics.cooja.mspmote.ESBMote; import se.sics.cooja.mspmote.ESBMote;
@ -48,7 +49,7 @@ import se.sics.cooja.mspmote.ESBMote;
* TR1001 radio interface on ESB platform. Assumes driver specifics such as * TR1001 radio interface on ESB platform. Assumes driver specifics such as
* preambles, synchbytes, GCR coding, CRC16. * preambles, synchbytes, GCR coding, CRC16.
* *
* @author Fredrik Osterlind * @author Fredrik Österlind
*/ */
@ClassDescription("TR1001 Radio") @ClassDescription("TR1001 Radio")
public class TR1001Radio extends Radio implements USARTListener, CustomDataRadio { public class TR1001Radio extends Radio implements USARTListener, CustomDataRadio {
@ -59,7 +60,7 @@ public class TR1001Radio extends Radio implements USARTListener, CustomDataRadio
*/ */
public static final long CYCLES_BETWEEN_BYTES = 1200; /* ~19.200 bps */ public static final long CYCLES_BETWEEN_BYTES = 1200; /* ~19.200 bps */
private ESBMote mspMote; private ESBMote mote;
private boolean radioOn = true; private boolean radioOn = true;
@ -116,7 +117,7 @@ public class TR1001Radio extends Radio implements USARTListener, CustomDataRadio
* @see se.sics.cooja.MoteInterfaceHandler * @see se.sics.cooja.MoteInterfaceHandler
*/ */
public TR1001Radio(ESBMote mote) { public TR1001Radio(ESBMote mote) {
mspMote = mote; this.mote = mote;
/* Start listening to CPU's USART */ /* Start listening to CPU's USART */
IOUnit usart = mote.getCPU().getIOUnit("USART 0"); IOUnit usart = mote.getCPU().getIOUnit("USART 0");
@ -238,17 +239,18 @@ public class TR1001Radio extends Radio implements USARTListener, CustomDataRadio
transmitting = true; transmitting = true;
transmissionStartCycles = mspMote.getCPU().cycles; transmissionStartCycles = mote.getCPU().cycles;
lastDeliveredByteTimestamp = transmissionStartCycles; lastDeliveredByteTimestamp = transmissionStartCycles;
lastEvent = RadioEvent.TRANSMISSION_STARTED; lastEvent = RadioEvent.TRANSMISSION_STARTED;
lastEventTime = mspMote.getSimulation().getSimulationTime(); lastEventTime = mote.getSimulation().getSimulationTime();
this.setChanged(); this.setChanged();
this.notifyObservers(); this.notifyObservers();
} }
// Remember recent radio activity // Remember recent radio activity
ticksSinceLastSend = 0; ticksSinceLastSend = 0;
mote.getSimulation().scheduleEvent(followupTransmissionEvent, mote.getSimulation().getSimulationTime()+1);
if (outgoingDataLength >= outgoingData.length) { if (outgoingDataLength >= outgoingData.length) {
logger.fatal("Ignoring byte due to buffer overflow"); logger.fatal("Ignoring byte due to buffer overflow");
@ -258,11 +260,11 @@ public class TR1001Radio extends Radio implements USARTListener, CustomDataRadio
// Deliver byte to radio medium as custom data // Deliver byte to radio medium as custom data
/*logger.debug("----- TR1001 DELIVERED BYTE -----");*/ /*logger.debug("----- TR1001 DELIVERED BYTE -----");*/
lastEvent = RadioEvent.CUSTOM_DATA_TRANSMITTED; lastEvent = RadioEvent.CUSTOM_DATA_TRANSMITTED;
tr1001ByteFromMote = new TR1001RadioByte((byte) data, mspMote.getCPU().cycles - lastDeliveredByteTimestamp); tr1001ByteFromMote = new TR1001RadioByte((byte) data, mote.getCPU().cycles - lastDeliveredByteTimestamp);
this.setChanged(); this.setChanged();
this.notifyObservers(); this.notifyObservers();
lastDeliveredByteTimestamp = mspMote.getCPU().cycles; lastDeliveredByteTimestamp = mote.getCPU().cycles;
outgoingData[outgoingDataLength++] = tr1001ByteFromMote; outgoingData[outgoingDataLength++] = tr1001ByteFromMote;
// Feed to application level immediately // Feed to application level immediately
@ -341,7 +343,7 @@ public class TR1001Radio extends Radio implements USARTListener, CustomDataRadio
bufferedByteDelays.clear(); bufferedByteDelays.clear();
lastEvent = RadioEvent.RECEPTION_INTERFERED; lastEvent = RadioEvent.RECEPTION_INTERFERED;
lastEventTime = mspMote.getSimulation().getSimulationTime(); lastEventTime = mote.getSimulation().getSimulationTime();
this.setChanged(); this.setChanged();
this.notifyObservers(); this.notifyObservers();
} }
@ -370,34 +372,38 @@ public class TR1001Radio extends Radio implements USARTListener, CustomDataRadio
} }
public Position getPosition() { public Position getPosition() {
return mspMote.getInterfaces().getPosition(); return mote.getInterfaces().getPosition();
} }
public void doActionsBeforeTick() { private TimeEvent followupTransmissionEvent = new TimeEvent(0) {
} public void execute(int t) {
public void doActionsAfterTick() { if (isTransmitting()) {
// Detect transmission end due to inactivity ticksSinceLastSend++;
if (isTransmitting() && ticksSinceLastSend > 4) {
/* Dropping packet due to inactivity */
packetFromMote = null;
// Reset counters and wait for next packet // Detect transmission end due to inactivity
outgoingDataLength = 0; if (ticksSinceLastSend > 4) {
ticksSinceLastSend = -1; /* Dropping packet due to inactivity */
packetFromMote = null;
// Signal we are done transmitting /* Reset counters and wait for next packet */
transmitting = false; outgoingDataLength = 0;
lastEvent = RadioEvent.TRANSMISSION_FINISHED; ticksSinceLastSend = -1;
this.setChanged();
this.notifyObservers();
//logger.debug("----- NULL TRANSMISSION ENDED -----"); /* Signal we are done transmitting */
} else if (isTransmitting() && ticksSinceLastSend >= 0) { transmitting = false;
// Increase counter to detect when transmission ends lastEvent = RadioEvent.TRANSMISSION_FINISHED;
ticksSinceLastSend++; TR1001Radio.this.setChanged();
TR1001Radio.this.notifyObservers();
/*logger.debug("----- NULL TRANSMISSION ENDED -----");*/
}
/* Reschedule as long as node is transmitting */
mote.getSimulation().scheduleEvent(this, t+1);
}
} }
} };
public JPanel getInterfaceVisualizer() { public JPanel getInterfaceVisualizer() {
// Location // Location
@ -475,7 +481,7 @@ public class TR1001Radio extends Radio implements USARTListener, CustomDataRadio
this.deleteObserver(observer); this.deleteObserver(observer);
} }
public double energyConsumptionPerTick() { public double energyConsumption() {
return 0; return 0;
} }
@ -487,6 +493,6 @@ public class TR1001Radio extends Radio implements USARTListener, CustomDataRadio
} }
public Mote getMote() { public Mote getMote() {
return mspMote; return mote;
} }
} }