+/***********************************************************************
+ *
+ * @brief calculates the total size to be allocated for UL TTI Req
+ *
+ * @details
+ *
+ * Function : getnPdus
+ *
+ * Functionality:
+ * -calculates the total pdu count to be allocated for UL TTI Req
+ *
+ * @params[in] Pointer to fapi Ul TTI Req
+ * Pointer to CurrUlSlot
+ * @return count
+ * ********************************************************************/
+#ifdef FAPI
+uint8_t getnPdus(fapi_ul_tti_req_t *ulTtiReq, MacUlSlot *currUlSlot)
+{
+ uint8_t pduCount = 0;
+
+ if(currUlSlot != NULLP)
+ {
+ if(currUlSlot->ulCellInfo.dataType & SCH_DATATYPE_PRACH)
+ {
+ pduCount++;
+ ulTtiReq->rachPresent = PDU_PRESENT;
+ }
+ if(currUlSlot->ulCellInfo.dataType & SCH_DATATYPE_PUSCH_UCI)
+ {
+ pduCount++;
+ ulTtiReq->nUlsch = PDU_PRESENT;
+ }
+ if(currUlSlot->ulCellInfo.dataType & SCH_DATATYPE_UCI)
+ {
+ pduCount++;
+ ulTtiReq->nUlcch = PDU_PRESENT;
+ }
+ if(currUlSlot->ulCellInfo.dataType & SCH_DATATYPE_SRS)
+ {
+ pduCount++;
+ }
+ }
+ return pduCount;
+}
+#endif
+
+/***********************************************************************
+ *
+ * @brief Set the value of zero correlation config in PRACH PDU
+ *
+ * @details
+ *
+ * Function : setNumCs
+ *
+ * Functionality:
+ * -Set the value of zero correlation config in PRACH PDU
+ *
+ * @params[in] Pointer to zero correlation config
+ * Pointer to MacCellCfg
+ * ********************************************************************/
+
+void setNumCs(uint8_t *numCs, MacCellCfg *macCellCfg)
+{
+#ifdef FAPI
+ uint8_t idx;
+ if(macCellCfg != NULLP)
+ {
+ idx = macCellCfg->prachCfg.fdm[0].zeroCorrZoneCfg;
+ *numCs = UnrestrictedSetNcsTable[idx];
+ }
+#endif
+}
+
+/***********************************************************************
+ *
+ * @brief Fills the PRACH PDU in UL TTI Request
+ *
+ * @details
+ *
+ * Function : fillPrachPdu
+ *
+ * Functionality:
+ * -Fills the PRACH PDU in UL TTI Request
+ *
+ * @params[in] Pointer to Prach Pdu
+ * Pointer to CurrUlSlot
+ * Pointer to macCellCfg
+ * Pointer to msgLen
+ * ********************************************************************/
+
+#ifdef FAPI
+void fillPrachPdu(fapi_ul_tti_req_pdu_t *ulTtiReqPdu, MacCellCfg *macCellCfg, MacUlSlot *currUlSlot, uint32_t *msgLen)
+{
+ if(ulTtiReqPdu != NULLP)
+ {
+ ulTtiReqPdu->pduType = PRACH_PDU_TYPE;
+ ulTtiReqPdu->u.prach_pdu.physCellId = macCellCfg->phyCellId;
+ ulTtiReqPdu->u.prach_pdu.numPrachOcas = currUlSlot->ulCellInfo.prachSchInfo.numPrachOcas;
+ ulTtiReqPdu->u.prach_pdu.prachFormat = \
+ currUlSlot->ulCellInfo.prachSchInfo.prachFormat;
+ ulTtiReqPdu->u.prach_pdu.numRa = currUlSlot->ulCellInfo.prachSchInfo.numRa;
+ ulTtiReqPdu->u.prach_pdu.prachStartSymbol = \
+ currUlSlot->ulCellInfo.prachSchInfo.prachStartSymb;
+ setNumCs(&ulTtiReqPdu->u.prach_pdu.numCs, macCellCfg);
+ ulTtiReqPdu->u.prach_pdu.beamforming.numPrgs = 0;
+ ulTtiReqPdu->u.prach_pdu.beamforming.prgSize = 0;
+ ulTtiReqPdu->u.prach_pdu.beamforming.digBfInterfaces = 0;
+ ulTtiReqPdu->u.prach_pdu.beamforming.pmi_bfi[0].pmIdx = 0;
+ ulTtiReqPdu->u.prach_pdu.beamforming.pmi_bfi[0].beamIdx[0].beamidx = 0;
+ ulTtiReqPdu->pduSize = sizeof(fapi_ul_prach_pdu_t);
+ SETLENGTH(*msgLen, sizeof(fapi_dl_pdsch_pdu_t));
+ }
+}
+#endif
+
+/*******************************************************************
+ *
+ * @brief Sends UL TTI Request to PHY
+ *
+ * @details
+ *
+ * Function : handleUlTtiReq
+ *
+ * Functionality:
+ * -Sends FAPI Param req to PHY
+ *
+ * @params[in] Pointer to CmLteTimingInfo
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ ******************************************************************/
+S16 handleUlTtiReq(CmLteTimingInfo *currTimingInfo)
+{
+#ifdef FAPI
+ uint32_t msgLen = 0;
+ fapi_ul_tti_req_t *ulTtiReq = NULLP;
+ fapi_ul_tti_req_pdu_t *ulTtiReqPdu = NULLP;
+ RgCellCb *cellCbParams = NULLP;
+ MacUlSlot *currUlSlot = NULLP;
+ MacCellCfg macCellCfg;
+ memset(&macCellCfg, 0, sizeof(MacCellCfg));
+ Inst inst = 0;
+
+ if(clGlobalCp.phyState == PHY_STATE_RUNNING)
+ {
+ cellCbParams = rgCb[inst].cell;
+ macCellCfg = cellCbParams->macCellCfg;
+
+ if(currTimingInfo != NULLP)
+ {
+#ifdef INTEL_WLS
+ WLS_MEM_ALLOC(ulTtiReq, sizeof(fapi_ul_tti_req_t));
+#else
+ MAC_ALLOC(ulTtiReq, sizeof(fapi_ul_tti_req_t));
+#endif
+ if(ulTtiReq != NULLP)
+ {
+ ulTtiReq->sfn = currTimingInfo->sfn;
+ ulTtiReq->slot = currTimingInfo->slot;
+ currUlSlot = &macCb.macCell->ulSlot[ulTtiReq->slot % MAX_SLOT_SUPPORTED];
+ ulTtiReq->nPdus = getnPdus(ulTtiReq, currUlSlot);
+ ulTtiReq->nGroup = 0;
+ if(ulTtiReq->nPdus > 0)
+ {
+#ifdef INTEL_WLS
+ WLS_MEM_ALLOC(ulTtiReqPdu, (ulTtiReq->nPdus * sizeof(fapi_ul_tti_req_pdu_t)));
+#else
+ MAC_ALLOC(ulTtiReqPdu, (ulTtiReq->nPdus * sizeof(fapi_ul_tti_req_pdu_t)));
+#endif
+ /* Fill Prach Pdu */
+ if(ulTtiReq->rachPresent)
+ {
+ if(ulTtiReqPdu != NULLP)
+ {
+ fillPrachPdu(ulTtiReqPdu, &macCellCfg, currUlSlot, &msgLen);
+ ulTtiReq->pdus = ulTtiReqPdu;
+ }
+ msgLen = sizeof(fapi_ul_tti_req_t) - sizeof(fapi_msg_t);
+ fillMsgHeader(&ulTtiReq->header, FAPI_UL_TTI_REQUEST, msgLen);
+ LwrMacSendToPhy(ulTtiReq->header.message_type_id, msgLen, (void *)ulTtiReq);
+ MAC_FREE(ulTtiReqPdu, (ulTtiReq->nPdus * sizeof(fapi_ul_tti_req_pdu_t)));
+ }
+ }
+ else
+ {
+ msgLen = sizeof(fapi_ul_tti_req_t) - sizeof(fapi_msg_t);
+ fillMsgHeader(&ulTtiReq->header, FAPI_UL_TTI_REQUEST, msgLen);
+ LwrMacSendToPhy(ulTtiReq->header.message_type_id, msgLen, (void *)ulTtiReq);
+ }
+ MAC_FREE(ulTtiReq, sizeof(fapi_ul_tti_req_t));
+ return ROK;
+ }
+ else
+ {
+ DU_LOG("\nLOWER MAC: Failed to allocate memory for UL TTI Request");
+ return RFAILED;
+ }
+ }
+ else
+ {
+ DU_LOG("\nLOWER MAC: Current TTI Info in UL is NULL");
+ return RFAILED;
+ }
+ }
+ else
+ {
+ lwr_mac_handleInvalidEvt(currTimingInfo);
+ }
+#endif
+ return ROK;
+}
+