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using time events for following up on ongoing transmissions

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This commit is contained in:
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
* 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;
@ -41,6 +41,7 @@ import org.jdom.Element;
import se.sics.mspsim.core.*;
import se.sics.cooja.*;
import se.sics.cooja.TimeEvent;
import se.sics.cooja.interfaces.*;
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
* preambles, synchbytes, GCR coding, CRC16.
*
* @author Fredrik Osterlind
* @author Fredrik Österlind
*/
@ClassDescription("TR1001 Radio")
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 */
private ESBMote mspMote;
private ESBMote mote;
private boolean radioOn = true;
@ -116,7 +117,7 @@ public class TR1001Radio extends Radio implements USARTListener, CustomDataRadio
* @see se.sics.cooja.MoteInterfaceHandler
*/
public TR1001Radio(ESBMote mote) {
mspMote = mote;
this.mote = mote;
/* Start listening to CPU's USART */
IOUnit usart = mote.getCPU().getIOUnit("USART 0");
@ -238,17 +239,18 @@ public class TR1001Radio extends Radio implements USARTListener, CustomDataRadio
transmitting = true;
transmissionStartCycles = mspMote.getCPU().cycles;
transmissionStartCycles = mote.getCPU().cycles;
lastDeliveredByteTimestamp = transmissionStartCycles;
lastEvent = RadioEvent.TRANSMISSION_STARTED;
lastEventTime = mspMote.getSimulation().getSimulationTime();
lastEventTime = mote.getSimulation().getSimulationTime();
this.setChanged();
this.notifyObservers();
}
// Remember recent radio activity
ticksSinceLastSend = 0;
mote.getSimulation().scheduleEvent(followupTransmissionEvent, mote.getSimulation().getSimulationTime()+1);
if (outgoingDataLength >= outgoingData.length) {
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
/*logger.debug("----- TR1001 DELIVERED BYTE -----");*/
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.notifyObservers();
lastDeliveredByteTimestamp = mspMote.getCPU().cycles;
lastDeliveredByteTimestamp = mote.getCPU().cycles;
outgoingData[outgoingDataLength++] = tr1001ByteFromMote;
// Feed to application level immediately
@ -341,7 +343,7 @@ public class TR1001Radio extends Radio implements USARTListener, CustomDataRadio
bufferedByteDelays.clear();
lastEvent = RadioEvent.RECEPTION_INTERFERED;
lastEventTime = mspMote.getSimulation().getSimulationTime();
lastEventTime = mote.getSimulation().getSimulationTime();
this.setChanged();
this.notifyObservers();
}
@ -370,34 +372,38 @@ public class TR1001Radio extends Radio implements USARTListener, CustomDataRadio
}
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() {
// Detect transmission end due to inactivity
if (isTransmitting() && ticksSinceLastSend > 4) {
/* Dropping packet due to inactivity */
packetFromMote = null;
if (isTransmitting()) {
ticksSinceLastSend++;
// Reset counters and wait for next packet
outgoingDataLength = 0;
ticksSinceLastSend = -1;
// Detect transmission end due to inactivity
if (ticksSinceLastSend > 4) {
/* Dropping packet due to inactivity */
packetFromMote = null;
// Signal we are done transmitting
transmitting = false;
lastEvent = RadioEvent.TRANSMISSION_FINISHED;
this.setChanged();
this.notifyObservers();
/* Reset counters and wait for next packet */
outgoingDataLength = 0;
ticksSinceLastSend = -1;
//logger.debug("----- NULL TRANSMISSION ENDED -----");
} else if (isTransmitting() && ticksSinceLastSend >= 0) {
// Increase counter to detect when transmission ends
ticksSinceLastSend++;
/* Signal we are done transmitting */
transmitting = false;
lastEvent = RadioEvent.TRANSMISSION_FINISHED;
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() {
// Location
@ -475,7 +481,7 @@ public class TR1001Radio extends Radio implements USARTListener, CustomDataRadio
this.deleteObserver(observer);
}
public double energyConsumptionPerTick() {
public double energyConsumption() {
return 0;
}
@ -487,6 +493,6 @@ public class TR1001Radio extends Radio implements USARTListener, CustomDataRadio
}
public Mote getMote() {
return mspMote;
return mote;
}
}