Cooja: Add LQI-Support to DGRM

tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/interfaces/Msp802154Radio.java

@@ -381,7 +381,21 @@ public class Msp802154Radio extends Radio implements CustomDataRadio {
     }
     rssiLastCounter = 8;
   }
+  
+  
+  /* This will set the CORR-value of the CC2420
+   * 
+   * @see se.sics.cooja.interfaces.Radio#setLQI(int)
+   */
+  public void setLQI(int lqi){
+	  radio.setLQI(lqi);
+  }
 
+  public int getLQI(){
+	  return radio.getLQI();
+  }
+  
+  
   public Mote getMote() {
     return mote;
   }

tools/cooja/java/se/sics/cooja/interfaces/Radio.java

@@ -169,6 +169,25 @@ public abstract class Radio extends MoteInterface {
    * @return Maximum output power indicator
    */
   public abstract int getOutputPowerIndicatorMax();
+  
+  /** 
+   * Returns the current LQI-value. This might differ from platform to platform 
+   * @return Current LQI value.
+   *  
+   * 
+   */
+  public int getLQI() throws UnsupportedOperationException {
+	  throw new UnsupportedOperationException();
+  }
+
+  /**
+   * Sets the LQI. This in not supported by all platforms. Also results may differ
+   * from platform to platform. 
+   *
+   * @param lqi The current LQI
+   */
+  public void setLQI(int lqi){
+  }
 
   /**
    * @return Current surrounding signal strength

tools/cooja/java/se/sics/cooja/radiomediums/DirectedGraphMedium.java

@@ -173,13 +173,19 @@ public class DirectedGraphMedium extends AbstractRadioMedium {
         conn.getSource().setCurrentSignalStrength(SS_STRONG);
       }
       //Maximum reception signal of all possible radios received
-      DGRMDestinationRadio dstRadios[] =  edgesTable.get(conn.getSource());
+      DGRMDestinationRadio dstRadios[] =  getPotentialDestinations(conn.getSource());
       if (dstRadios == null) continue; 
       for (DGRMDestinationRadio dstRadio : dstRadios) {
         if (dstRadio.radio.getCurrentSignalStrength() < dstRadio.signal) {
           dstRadio.radio.setCurrentSignalStrength(dstRadio.signal);
         }
+        /* We can set this without further checks, as it will only be read
+         * if a packet is actually received. In that case it is set to the
+         * correct value */
+        dstRadio.radio.setLQI(dstRadio.lqi);
       }
+    
+      
     } 
   }