--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cs/layer1/gtt_include/l1gtt_signa.h	Sun Jul 15 04:39:26 2018 +0000
@@ -0,0 +1,34 @@
+/************* Revision Controle System Header *************
+ *                  GSM Layer 1 software 
+ * L1GTT_SIGNA.H
+ *
+ *        Filename l1gtt_signa.h
+ *  Copyright 2003 (C) Texas Instruments  
+ *
+ ************* Revision Controle System Header *************/
+ 
+#if (L1_GTT == 1)
+
+  #define P_GTT ( 0x19 )
+  
+  // Messages Upper layer <-> L1A
+  #define MMI_GTT_START_REQ             ( ( P_GTT << 8 ) |   1 )
+  #define MMI_GTT_START_CON             ( ( P_GTT << 8 ) |   2 )
+  #define MMI_GTT_STOP_REQ              ( ( P_GTT << 8 ) |   3 )
+  #define MMI_GTT_STOP_CON              ( ( P_GTT << 8 ) |   4 )
+
+  // Messages L1S <-> L1A
+  #define L1_GTT_START_CON              ( ( P_GTT << 8 ) |   5 )
+  #define L1_GTT_STOP_CON               ( ( P_GTT << 8 ) |   6 )
+
+  // Test messages
+  #define TST_CLOSE_GTT_LOOP_REQ        ( ( P_GTT << 8 ) |   7 )
+  #define TST_CLOSE_GTT_LOOP_CON        ( ( P_GTT << 8 ) |   8 )
+  #define TST_OPEN_GTT_LOOP_REQ         ( ( P_GTT << 8 ) |   9 )
+  #define TST_OPEN_GTT_LOOP_CON         ( ( P_GTT << 8 ) |  10 )
+  #define TST_START_GTT_TEST_REQ        ( ( P_GTT << 8 ) |  11 )
+  #define TST_START_GTT_TEST_CON        ( ( P_GTT << 8 ) |  12 )
+  #define TST_STOP_GTT_TEST_REQ         ( ( P_GTT << 8 ) |  13 )
+  #define TST_STOP_GTT_TEST_CON         ( ( P_GTT << 8 ) |  14 )
+
+#endif // L1_GTT == 1