--- a/chipsetsw/layer1/dyn_dwl_cfile/l1_dyn_dwl_sync.c	Wed Oct 21 03:48:05 2015 +0000
+++ b/chipsetsw/layer1/dyn_dwl_cfile/l1_dyn_dwl_sync.c	Wed Oct 21 21:41:05 2015 +0000
@@ -1,1 +1,137 @@
-/* dummy C source file */
+/************* Revision Controle System Header *************
+ *                  GSM Layer 1 software
+ * L1_DYN_DWL_SYNC.C
+ *
+ *        Filename l1_dyn_dwl_sync.c
+ *  Copyright 2004 (C) Texas Instruments
+ *
+ ************* Revision Controle System Header *************/
+
+#include <stdio.h>
+#include <string.h>
+
+#include "nucleus.h"
+#include "l1_confg.h"
+#include "l1_types.h"
+#include "sys_types.h"
+#include "cust_os.h"
+#include "l1audio_signa.h"
+#include "l1audio_const.h"
+#include "l1audio_cust.h"
+#include "l1audio_defty.h"
+#include "l1_const.h"
+#include "l1tm_defty.h"
+#if (L1_GTT == 1)
+  #include "l1gtt_const.h"
+  #include "l1gtt_defty.h"
+#endif
+#if (L1_DYN_DSP_DWNLD==1)
+  #include "l1_dyn_dwl_defty.h"
+  #include "l1_dyn_dwl_msgty.h"
+  #include "l1_dyn_dwl_const.h"
+  #include "l1_dyn_dwl_signa.h"
+  #include "l1_dyn_dwl_error.h"
+  #include "l1_dyn_dwl_proto.h"
+  #include "l1_api_hisr.h"
+#endif
+
+#if (L1_MP3 == 1)
+  #include "l1mp3_defty.h"
+#endif //L1_MP3
+#if (L1_MIDI == 1)
+  #include "l1midi_defty.h"
+#endif
+
+#include "l1_macro.h"
+#include "l1_defty.h"
+#include "l1_varex.h"
+#include "l1_trace.h"
+#include "sys_dma.h"
+
+#if (L1_DYN_DSP_DWNLD == 1)
+
+extern T_DYN_DWNLD_MCU_DSP *dyn_dwl_ndb;
+
+
+/*-------------------------------------------------------*/
+/* l1s_dyn_dsp_dwnld_manager()                           */
+/*-------------------------------------------------------*/
+/*                                                       */
+/* Parameters :  n/a                                     */
+/*                                                       */
+/* Return     :  n/a                                     */
+/*                                                       */
+/* Description : dsp dynamic download L1S manager task.  */
+/*                                                       */
+/*-------------------------------------------------------*/
+
+void l1s_dyn_dwnld_manager(void)
+{
+  enum states
+  {
+    WAIT_INIT = 0,
+    WAIT_RESULT,
+    WAIT_STOP
+  };
+
+  UWORD8 *state = &l1s.dyn_dwnld_state;
+  xSignalHeaderRec *conf_msg;
+  
+  switch(*state)
+  {
+    case WAIT_INIT:
+    {
+      if(l1a_l1s_com.dyn_dwnld_task.start==TRUE)
+      {
+        // make sure the DSP is able to receive API interrupt
+        // for this, we wait 1 TDMA frame
+        // change state
+        *state=WAIT_RESULT;
+      }
+    }
+    break;
+
+    case WAIT_RESULT:
+    {
+      // reset the command
+      l1a_l1s_com.dyn_dwnld_task.start=FALSE;
+      // send start background to the DSP
+      dyn_dwl_ndb->d_api_dwl_download_ctrl = (API) C_DWL_DOWNLOAD_CTRL_INIT;
+      l1s_dsp_com.dsp_ndb_ptr->a_background_tasks[C_BGD_DSP_DYN_DWNLD] = (API)((C_BGD_DSP_DYN_DWNLD<<11) | 1);
+      l1s_dsp_com.dsp_ndb_ptr->d_background_enable|=(API)(1<<C_BGD_DSP_DYN_DWNLD);
+      l1_trigger_api_interrupt();
+
+      // change state
+      *state=WAIT_STOP;
+    }
+    break;
+
+    case WAIT_STOP:
+    {
+      if(l1a_l1s_com.dyn_dwnld_task.stop==TRUE)
+      {
+        // reset the command
+        l1a_l1s_com.dyn_dwnld_task.stop=FALSE;
+
+        // send stop background to the DSP
+        l1s_dsp_com.dsp_ndb_ptr->a_background_tasks[C_BGD_DSP_DYN_DWNLD] = (API)((C_BGD_DSP_DYN_DWNLD<<11) | 0);
+        l1s_dsp_com.dsp_ndb_ptr->d_background_enable&=(API)(~(1<<C_BGD_DSP_DYN_DWNLD));
+        l1_trigger_api_interrupt(); 
+        
+        // send confirmation to the L1A
+        conf_msg=os_alloc_sig(0);
+        DEBUGMSG(status,NU_ALLOC_ERR)
+        conf_msg->SignalCode=L1_DYN_DWNLD_STOP_CON;
+        os_send_sig(conf_msg,L1C1_QUEUE);
+        DEBUGMSG(status,NU_SEND_QUEUE_ERR)
+
+        // change state
+        *state=WAIT_INIT;
+      }
+    }
+    break;
+  }
+}
+
+#endif    // L1_DYN_DSP_DWNLD==1
+