P25 work in progress

src/decode/p25/message/tsbk/osp/control/SystemService.java

@@ -0,0 +1,85 @@
+package decode.p25.message.tsbk.osp.control;
+
+public class SystemService
+{
+    public static boolean isCompositeControlChannel( int service )
+    {
+        return ( service & 0x01 ) == 0x01;
+    }
+    
+    public static boolean isUpdateControlChannelOnly( int service )
+    {
+        return ( service & 0x02 ) == 0x02;
+    }
+    
+    public static boolean isBackupControlChannelOnly( int service )
+    {
+        return ( service & 0x04 ) == 0x04;
+    }
+    
+    public static boolean providesDataServiceRequests( int service )
+    {
+        return ( service & 0x10 ) == 0x10;
+    }
+    
+    public static boolean providesVoiceServiceRequests( int service )
+    {
+        return ( service & 0x20 ) == 0x20;
+    }
+    
+    public static boolean providesRegistrationServices( int service )
+    {
+        return ( service & 0x40 ) == 0x40;
+    }
+    
+    public static boolean providesAuthenticationServices( int service )
+    {
+        return ( service & 0x80 ) == 0x80;
+    }
+
+    public static String toString( int service )
+    {
+        StringBuilder sb = new StringBuilder();
+        
+        sb.append( "CONTROL CHAN:" );
+        
+        if( isCompositeControlChannel( service ) )
+        {
+            sb.append( " COMPOSITE" );
+        }
+        
+        if( isUpdateControlChannelOnly( service ) )
+        {
+            sb.append( " UPDATE" );
+        }
+        
+        if( isBackupControlChannelOnly( service ) )
+        {
+            sb.append( " BACKUP" );
+        }
+        
+        sb.append( " SERVICES:" );
+        
+        if( providesAuthenticationServices( service ) )
+        {
+            sb.append( " AUTHENTICATION" );
+        }
+        
+        if( providesDataServiceRequests( service ) )
+        {
+            sb.append( " DATA" );
+        }
+        
+        if( providesRegistrationServices( service ) )
+        {
+            sb.append( " REGISTRATION" );
+        }
+        
+        if( providesVoiceServiceRequests( service ) )
+        {
+            sb.append( " VOICE" );
+        }
+        
+        return sb.toString();
+    }
+}