+ duFillEgtpPst(&pst, EVTSLOTIND);
+ packEgtpSlotInd(&pst);
+
+ return ROK;
+
+}
+
+/**************************************************************************
+ * @brief Function to fill and send MacCellconfig
+ *
+ * @details
+ *
+ * Function : duBuildAndSendMacCellCfg
+ *
+ * Functionality:
+ * Initiates MAC Configs towards MAC
+ *
+ * @param[in] void
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ ***************************************************************************/
+uint8_t duBuildAndSendMacCellCfg()
+{
+ Pst pst;
+ DU_SET_ZERO(&pst, sizeof(Pst));
+ MacCellCfg *duMacCellCfg = NULLP;
+
+ DU_ALLOC_SHRABL_BUF(duMacCellCfg, sizeof(MacCellCfg));
+ if(duMacCellCfg == NULLP)
+ {
+ return RFAILED;
+ }
+
+ /* store the address in the duCb so that we can free on confirm msg */
+ duCb.duMacCellCfg = duMacCellCfg;
+
+ /* copy the mac config structure from duCfgParams */
+ memcpy(duMacCellCfg,&duCfgParam.macCellCfg,sizeof(MacCellCfg));
+
+ /* Fill Pst */
+ FILL_PST_DUAPP_TO_MAC(pst, EVENT_MAC_CELL_CONFIG_REQ);
+
+ /* Send MAC cell config to MAC */
+ return (*packMacCellCfgOpts[pst.selector])(&pst, duMacCellCfg);
+}
+
+/**************************************************************************
+ * @brief Function to Handle MAC cell config confirm
+ *
+ * @details
+ *
+ * Function : duHandleMacCellCfgCfm
+ *
+ * Functionality:
+ * Initiates general Configs towards MAC
+ *
+ * @param[in] void
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ ***************************************************************************/
+uint8_t duHandleMacCellCfgCfm(Pst *pst, MacCellCfgCfm *macCellCfgCfm)
+{
+ uint8_t actvCellIdx = 0;
+ uint8_t ret = ROK;
+
+ if(macCellCfgCfm->rsp == ROK)
+ {
+ for(actvCellIdx = 0 ; actvCellIdx <duCb.numActvCells ; actvCellIdx++)
+ {
+ if(macCellCfgCfm->cellId == duCb.actvCellLst[actvCellIdx]->cellId)
+ {
+ duCb.duMacCellCfg = NULLP;
+ /* Build and send GNB-DU config update */
+ ret = BuildAndSendDUConfigUpdate();
+
+ /* TODO: Trigger cell start req once cell up slot ind is received*/
+ /* Build and Send Cell Start Req to MAC */
+ ret = duBuildAndSendMacCellStartReq();
+
+ }
+ }
+ }
+ else
+ {
+ DU_LOG("\nMac cell cfg failed");
+ ret = RFAILED;
+ }
+ return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief Handles slot indication from MAC
+ *
+ * @details
+ *
+ * Function : duHandleSlotInd
+ *
+ * Functionality:
+ * Handles slot indication from MAC
+ *
+ * @params[in] Post structure pointer
+ * Slot Info pointer
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t duHandleSlotInd(Pst *pst, SlotIndInfo *slotInfo)
+{
+
+ DU_LOG("\nDU APP : Slot Indication received");
+
+ if(slotInfo->cellId <=0 || slotInfo->cellId > MAX_NUM_CELL)
+ {
+ DU_LOG("\nDU APP : Invalid Cell Id %d", slotInfo->cellId);
+ }
+ if(!duCb.actvCellLst[slotInfo->cellId-1]->firstSlotIndRcvd)
+ {
+ duCb.actvCellLst[slotInfo->cellId-1]->firstSlotIndRcvd = true;
+ if((duCb.actvCellLst[slotInfo->cellId-1] != NULL) && \
+ (duCb.actvCellLst[slotInfo->cellId-1]->cellStatus == \
+ ACTIVATION_IN_PROGRESS))
+ {
+ DU_LOG("\nDU APP : 5G-NR Cell %d is UP", slotInfo->cellId);
+ duCb.actvCellLst[slotInfo->cellId-1]->cellStatus = ACTIVATED;
+ }
+
+ }
+
+ /* TODO : Slot Indication to be moved out of EGTP_TEST when
+ * data path is established */
+#ifdef EGTP_TEST
+ duSendEgtpSlotInd();
+#endif
+
+ if((pst->selector == ODU_SELECTOR_LWLC) || (pst->selector == ODU_SELECTOR_TC))
+ DU_FREE_SHRABL_BUF(MAC_MEM_REGION, pst->pool, slotInfo, sizeof(SlotIndInfo));
+
+ return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Builds and sends cell start request to MAC
+ *
+ * @details
+ *
+ * Function : duBuildAndSendMacCellStartReq
+ *
+ * Functionality:
+ * Builds and sends cell start request to MAC
+ *
+ * @params[in]
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t duBuildAndSendMacCellStartReq()
+{
+ Pst pst;
+ MacCellStartInfo *cellStartInfo = NULL;
+
+ DU_LOG("\nDU APP : Building and Sending cell start request to MAC");
+
+ /* Send Cell Start Request to MAC */
+ DU_ALLOC_SHRABL_BUF(cellStartInfo, sizeof(MacCellStartInfo));
+ if(!cellStartInfo)
+ {
+ DU_LOG("\nDU APP : Memory alloc failed while building cell start request");
+ return RFAILED;
+ }
+
+ for(uint8_t id = 0; id < MAX_NUM_CELL; id++)
+ {
+ if(duCb.actvCellLst[id])
+ {
+ duCb.actvCellLst[id]->firstSlotIndRcvd = FALSE;
+ cellStartInfo->cellId = duCb.actvCellLst[id]->cellInfo.nrEcgi.cellId;
+
+ /* Fill Pst */
+ FILL_PST_DUAPP_TO_MAC(pst, EVENT_MAC_CELL_START_REQ);
+
+ return (*packMacCellStartReqOpts[pst.selector])(&pst, cellStartInfo);
+ }
+ }
+ return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Builds and sends cell stop request to MAC
+ *
+ * @details
+ *
+ * Function : duBuildAndSendMacCellStopReq
+ *
+ * Functionality:
+ * Builds and sends cell stop request to MAC
+ *
+ * @params[in]
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t duBuildAndSendMacCellStopReq()
+{
+ Pst pst;
+ MacCellStopInfo *cellStopInfo = NULL;
+
+ DU_LOG("\nDU APP : Building and Sending cell stop request to MAC");
+
+ /* Send Cell Stop Request to MAC */
+ DU_ALLOC_SHRABL_BUF(cellStopInfo, sizeof(MacCellStopInfo));
+ if(!cellStopInfo)
+ {
+ DU_LOG("\nDU APP : Memory alloc failed while building cell stop request");
+ return RFAILED;
+ }
+ cellStopInfo->cellId = duCb.actvCellLst[0]->cellId;
+
+ /* Fill Pst */
+ FILL_PST_DUAPP_TO_MAC(pst, EVENT_MAC_CELL_STOP_REQ);
+
+ return (*packMacCellStopReqOpts[pst.selector])(&pst, cellStopInfo);
+}
+
+/*******************************************************************
+ *
+ * @brief Handles stop indication from MAC
+ *
+ * @details
+ *
+ * Function : duHandleStopInd
+ *
+ * Functionality:
+ * Handles stop indication from MAC
+ *
+ * @params[in] Post structure pointer
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t duHandleStopInd(Pst *pst, MacCellStopInfo *cellStopId)
+{
+ if(cellStopId->cellId <=0 || cellStopId->cellId > MAX_NUM_CELL)
+ {
+ DU_LOG("\nDU APP : Invalid Cell Id %d", cellStopId->cellId);
+ }
+ if(duCb.actvCellLst[cellStopId->cellId-1] != NULL)
+ {
+ if(duCb.actvCellLst[cellStopId->cellId-1]->firstSlotIndRcvd)
+ {
+ duCb.actvCellLst[cellStopId->cellId-1]->firstSlotIndRcvd = false;
+ if((duCb.actvCellLst[cellStopId->cellId-1]->cellStatus == \
+ ACTIVATED))
+ {
+ DU_LOG("\nDU APP : 5G-NR Cell %d is DOWN", cellStopId->cellId);
+ duCb.actvCellLst[cellStopId->cellId-1]->cellStatus = DELETION_IN_PROGRESS;
+ }
+ }
+ }
+ if((pst->selector == ODU_SELECTOR_LWLC) || (pst->selector == ODU_SELECTOR_TC))
+ DU_FREE_SHRABL_BUF(MAC_MEM_REGION, pst->pool, cellStopId, sizeof(MacCellStopInfo));
+
+ return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Handles slot indication from MAC
+ *
+ * @details
+ *
+ * Function : duHandleUlCcchInd
+ *
+ * Functionality:
+ * Handles UL CCCH indication from MAC
+ *
+ * @params[in] Post structure pointer
+ * UL CCCH Ind pointer
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t duHandleUlCcchInd(Pst *pst, UlCcchIndInfo *ulCcchIndInfo)
+{
+
+ DU_LOG("\nDU APP : UL CCCH Indication received");
+
+ return (duProcUlCcchInd(ulCcchIndInfo));
+}
+
+/*******************************************************************
+ *
+ * @brief Process UL RRC Message from RLC
+ *
+ * @details
+ *
+ * Function : DuProcRlcUlRrcMsgTrans
+ *
+ * Functionality: Process UL RRC Message from RLC
+ *
+ * @params[in] Post structure
+ * UL RRC Message Info
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t DuProcRlcUlRrcMsgTrans(Pst *pst, RlcUlRrcMsgInfo *ulRrcMsgInfo)
+{
+ DuUeCb ueCb;