[Epic-ID: ODUHIGH-405][Task-ID: ODUHIGH-420] GNB-DU Configuration Query and response

[o-du/l2.git] / src / cu_stub / cu_stub.c

diff --git a/src/cu_stub/cu_stub.c b/src/cu_stub/cu_stub.c
index 11b7a4e..c8724d7 100644 (file)
--- a/src/cu_stub/cu_stub.c
+++ b/src/cu_stub/cu_stub.c
@@ -257,6 +257,40 @@ void readCuCfg()
 
 } /* End of readCuCfg */
 
+/*******************************************************************
+ *
+ * @brief Initiates inter DU handover
+ *
+ * @details
+ *
+ *    Function : initiateInterDuHandover
+ *
+ *    Functionality: Initiates the first procedure of inter-DU
+ *    handover i.eG GNB-DU configuration query to source DU
+ *
+ * @params[in] Source DU Id
+ *             Target DU Id
+ *             UE Id to be handed off 
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+void initiateInterDuHandover(uint32_t sourceDuId, uint32_t targetDuId, uint32_t ueId)
+{
+    DuDb *duDb = NULLP;
+    CuUeCb *ueCb = NULLP;
+
+    duDb = getDuDb(sourceDuId);
+    if(duDb)
+       ueCb = &duDb->ueCb[ueId-1];
+    if(ueCb)
+       ueCb->state = HANDOVER_IN_PROGRESS;
+
+    DU_LOG("\nINFO  --> CU_STUB: Inter-DU Handover Started for ueId [%d] from DU ID [%d] to DU ID [%d]", \
+          ueId, sourceDuId, targetDuId);
+    BuildAndSendUeContextModificationReq(sourceDuId, ueCb, QUERY_CONFIG);
+}
+
 /*******************************************************************
  *
  * @brief Handles Console input
@@ -289,8 +323,9 @@ void *cuConsoleHandler(void *args)
 
    while(true) 
    {
+      ch = getchar();
       /* Send DL user data to CU when user enters 'd' on console */
-      if((ch = getchar()) == 'd')
+      if(ch == 'd')
       {
 
       /* Change #if 0 to #if 1 to take input from user */
@@ -344,6 +379,21 @@ void *cuConsoleHandler(void *args)
 #endif
          continue;
       } 
+
+      /* Start Handover procedure towards DU when 'h' is received from console input */
+      else if(ch == 'h')
+      {
+         uint32_t sourceDuId, targetDuId, ueId;
+
+         DU_LOG("\nEnter Source DU ID for Inter-DU Handover");
+         scanf("%d", &sourceDuId);
+         DU_LOG("\nEnter Target DU ID for Inter-DU Handover");
+         scanf("%d", &targetDuId);
+         DU_LOG("\nEnter DU UE F1AP ID to be handed over");
+         scanf("%d", &ueId);
+
+         initiateInterDuHandover(sourceDuId, targetDuId, ueId);
+      }
    }
 }
 /**********************************************************************