P25 work in progress - final commit of TSBK message parsers

2026-11-13 17:17:29 -05:00 · 2014-11-23 23:13:58 +00:00
parent 1660f13633
commit 23901c7a2f
29 changed files with 1630 additions and 184 deletions
--- a/src/decode/p25/message/tsbk/osp/data/SNDCPDataChannelAnnouncementExplicit.java
+++ b/src/decode/p25/message/tsbk/osp/data/SNDCPDataChannelAnnouncementExplicit.java
@@ -0,0 +1,148 @@
+package decode.p25.message.tsbk.osp.data;
+
+import alias.AliasList;
+import bits.BitSetBuffer;
+import decode.p25.message.tsbk.osp.control.IdentifierUpdate;
+import decode.p25.message.tsbk.osp.control.IdentifierUpdateReceiver;
+import decode.p25.reference.DataUnitID;
+
+public class SNDCPDataChannelAnnouncementExplicit extends SNDCPData 
+					implements IdentifierUpdateReceiver
+{
+	public static final int AUTONOMOUS_ACCESS_AVAILABLE_INDICATOR = 88;
+	public static final int REQUESTED_ACCESS_AVAILABLE_INDICATOR = 89;
+	
+	public static final int[] TRANSMIT_IDENTIFIER = { 96,97,98,99 };
+    public static final int[] TRANSMIT_CHANNEL = { 100,101,102,103,104,105,106,
+    	107,108,109,110,111 };
+	public static final int[] RECEIVE_IDENTIFIER = { 112,113,114,115 };
+    public static final int[] RECEIVE_CHANNEL = { 116,117,118,119,120,121,122,
+    	123,124,125,126,127 };
+    
+    public static final int[] DATA_ACCESS_CONTROL = { 128,129,130,131,132,133,
+    	134,135,136,137,138,139,140,141,142,143 };
+    
+    private IdentifierUpdate mIdentifierUpdateTransmit;
+    private IdentifierUpdate mIdentifierUpdateReceive;
+
+    public SNDCPDataChannelAnnouncementExplicit( BitSetBuffer message, 
+								  DataUnitID duid,
+								  AliasList aliasList )
+    {
+	    super( message, duid, aliasList );
+    }
+    
+    public String getMessage()
+    {
+        StringBuilder sb = new StringBuilder();
+        
+        sb.append( getMessageStub() );
+        
+        if( isEmergency() )
+        {
+            sb.append( " EMERGENCY" );
+        }
+        
+        if( isAutonomousAccessAvailable() )
+        {
+        	sb.append( " AUTONOMOUS ACCESS" );
+        }
+        
+        if( isRequestedAccessAvailable() )
+        {
+            sb.append( " DOWNLINK:" );
+            sb.append( getTransmitIdentifier() + "-" + getTransmitChannel() );
+            
+            sb.append( " " + getUplinkFrequency() );
+            
+            sb.append( " UPLINK:" );
+            sb.append( getReceiveIdentifier() + "-" + getReceiveChannel() );
+            
+            sb.append( " " + getDownlinkFrequency() );
+            
+            sb.append( " DATA ACCESS CONTROL:" );
+        }
+        else
+        {
+        	sb.append( " ACCESS DENIED TO DATA ACCESS CONTROL:" ); 
+        }
+        
+        sb.append( getDataAccessControl() );
+        
+        return sb.toString();
+    }
+    
+    public boolean isAutonomousAccessAvailable()
+    {
+    	return mMessage.get( AUTONOMOUS_ACCESS_AVAILABLE_INDICATOR );
+    }
+    
+    public boolean isRequestedAccessAvailable()
+    {
+    	return mMessage.get( REQUESTED_ACCESS_AVAILABLE_INDICATOR );
+    }
+    
+    public int getTransmitIdentifier()
+    {
+        return mMessage.getInt( TRANSMIT_IDENTIFIER );
+    }
+    
+    public int getTransmitChannel()
+    {
+        return mMessage.getInt( TRANSMIT_CHANNEL );
+    }
+    
+    public int getReceiveIdentifier()
+    {
+        return mMessage.getInt( RECEIVE_IDENTIFIER );
+    }
+    
+    public int getReceiveChannel()
+    {
+        return mMessage.getInt( RECEIVE_CHANNEL );
+    }
+    
+    public String getDataAccessControl()
+    {
+    	return mMessage.getHex( DATA_ACCESS_CONTROL, 4 );
+    }
+    
+	@Override
+    public void setIdentifierMessage( int identifier, IdentifierUpdate message )
+    {
+		if( identifier == getTransmitIdentifier() )
+		{
+			mIdentifierUpdateTransmit = message;
+		}
+		else if( identifier == getReceiveIdentifier() )
+		{
+			mIdentifierUpdateReceive = message;
+		}
+		else
+		{
+			throw new IllegalArgumentException( "unexpected channel band "
+					+ "identifier [" + identifier + "]" );
+		}
+    }
+
+	@Override
+    public int[] getIdentifiers()
+    {
+		int[] identifiers = new int[ 2 ];
+		
+		identifiers[ 0 ] = getTransmitIdentifier();
+		identifiers[ 1 ] = getReceiveIdentifier();
+
+	    return identifiers;
+    }
+
+    public long getDownlinkFrequency()
+    {
+    	return calculateDownlink( mIdentifierUpdateTransmit, getReceiveChannel() );
+    }
+    
+    public long getUplinkFrequency()
+    {
+    	return calculateUplink( mIdentifierUpdateReceive, getTransmitChannel() );
+    }
+}