P25 work in progress.

Adds parsing of TDULC and LDU1 Link Control messages and LDU1 Low Speed Data ( 16-bit word).
2026-11-13 17:17:29 -05:00 · 2015-01-02 23:30:35 +00:00
parent 03460eeb19
commit 77eeed78d2
57 changed files with 2290 additions and 83 deletions
--- a/src/decode/p25/message/ldu/lc/RFSSStatusBroadcastExplicit.java
+++ b/src/decode/p25/message/ldu/lc/RFSSStatusBroadcastExplicit.java
@@ -0,0 +1,150 @@
+package decode.p25.message.ldu.lc;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import decode.p25.message.IdentifierProvider;
+import decode.p25.message.IdentifierReceiver;
+import decode.p25.message.ldu.LDU1Message;
+import decode.p25.message.tsbk.osp.control.SystemService;
+import decode.p25.reference.LinkControlOpcode;
+
+public class RFSSStatusBroadcastExplicit extends LDU1Message 
+								 implements IdentifierReceiver
+{
+	private final static Logger mLog = 
+			LoggerFactory.getLogger( RFSSStatusBroadcastExplicit.class );
+
+	public static final int[] LRA = { 364,365,366,367,372,373,374,375 };
+	public static final int[] RECEIVE_IDENTIFIER = { 376,377,382,383 };
+	public static final int[] RECEIVE_CHANNEL = { 384,385,386,387,536,537,538,
+		539,540,541,546,547 };
+	public static final int[] RFSS_ID = { 548,549,550,551,556,557,558,559 };
+	public static final int[] SITE_ID = { 560,561,566,567,568,569,570,571 };
+	public static final int[] TRANSMIT_IDENTIFIER = { 720,721,722,723 };
+	public static final int[] TRANSMIT_CHANNEL = { 724,725,730,731,732,733,734,
+		735,740,741,742,743 };
+	public static final int[] SYSTEM_SERVICE_CLASS = { 744,745,750,751,752,753,754,755 };
+
+	private IdentifierProvider mTransmitIdentifierUpdate;
+	private IdentifierProvider mReceiveIdentifierUpdate;
+	
+	public RFSSStatusBroadcastExplicit( LDU1Message source )
+	{
+		super( source );
+	}
+	
+    @Override
+    public String getEventType()
+    {
+        return LinkControlOpcode.RFSS_STATUS_BROADCAST_EXPLICIT.getDescription();
+    }
+
+	@Override
+	public String getMessage()
+	{
+		StringBuilder sb = new StringBuilder();
+		
+		sb.append( getMessageStub() );
+		
+		sb.append( " LRA:" + getLocationRegistrationArea() );
+		
+		sb.append( " SITE:" + getRFSubsystemID() + "-" + getSiteID() );
+		
+		sb.append( " TRANSMIT:" + getTransmitChannelNumber() );
+		
+		sb.append( " RECEIVE:" + getReceiveChannelNumber() );
+		
+        sb.append( " " + SystemService.toString( getSystemServiceClass() ) );
+		
+        sb.append( " " + mMessage.toString() );
+        
+		return sb.toString();
+	}
+	
+	public String getLocationRegistrationArea()
+	{
+		return mMessage.getHex( LRA, 2 );
+	}
+	
+	public String getRFSubsystemID()
+	{
+		return mMessage.getHex( RFSS_ID, 2 );
+	}
+	
+	public String getSiteID()
+	{
+		return mMessage.getHex( SITE_ID, 2 );
+	}
+	
+	public int getTransmitIdentifier()
+	{
+		return mMessage.getInt( TRANSMIT_IDENTIFIER );
+	}
+	
+	public String getTransmitChannel()
+	{
+		return getTransmitIdentifier() + "-" + getTransmitChannelNumber();
+	}
+	
+	public int getTransmitChannelNumber()
+	{
+		return mMessage.getInt( TRANSMIT_CHANNEL );
+	}
+	
+	public int getReceiveIdentifier()
+	{
+		return mMessage.getInt( RECEIVE_IDENTIFIER );
+	}
+	
+	public String getReceiveChannel()
+	{
+		return getReceiveIdentifier() + "-" + getReceiveChannelNumber();
+	}
+	
+	public int getReceiveChannelNumber()
+	{
+		return mMessage.getInt( RECEIVE_CHANNEL );
+	}
+	
+	public int getSystemServiceClass()
+	{
+		return mMessage.getInt( SYSTEM_SERVICE_CLASS );
+	}
+
+	@Override
+    public void setIdentifierMessage( int identifier, IdentifierProvider message )
+    {
+		if( identifier == getTransmitIdentifier() )
+		{
+			mTransmitIdentifierUpdate = message;
+		}
+		
+		if( identifier == getReceiveIdentifier() )
+		{
+			mReceiveIdentifierUpdate = message;
+		}
+    }
+
+	@Override
+    public int[] getIdentifiers()
+    {
+		int[] identifiers = new int[ 2 ];
+		
+		identifiers[ 0 ] = getTransmitIdentifier();
+		identifiers[ 1 ] = getReceiveIdentifier();
+		
+	    return identifiers;
+    }
+	
+    public long getDownlinkFrequency()
+    {
+    	return calculateDownlink( mTransmitIdentifierUpdate, getTransmitChannelNumber() );
+    }
+    
+    public long getUplinkFrequency()
+    {
+    	return calculateUplink( mReceiveIdentifierUpdate, getReceiveChannelNumber() );
+    }
+	
+}