+
+/*******************************************************************
+ *
+ * @brief Handles tx_data request received from MAC
+ *
+ * @details
+ *
+ * Function : l1HdlTxDataReq
+ *
+ * Functionality:
+ * -Handles tx_data request received from MAC
+ *
+ * @params[in] Message length
+ * tx_data request message pointer
+ *
+ * @return void
+ *
+ * ****************************************************************/
+
+S16 l1HdlTxDataReq(uint16_t msgLen, void *msg)
+{
+#ifdef INTEL_FAPI
+ fapi_tx_data_req_t *txDataReq;
+ txDataReq = (fapi_tx_data_req_t *)msg;
+
+ DU_LOG("\nPHY STUB: TX DATA Request at sfn=%d slot=%d",txDataReq->sfn,txDataReq->slot);
+
+ MAC_FREE(txDataReq, msgLen);
+#endif
+ return ROK;
+}
+
+#ifdef INTEL_FAPI
+/*******************************************************************
+ *
+ * @brief Fills Uci Ind Pdu Info carried on Pucch Format 0/Format 1
+ *
+ * @details
+ *
+ * Function : fillPucchF0F1PduInfo
+ *
+ * Functionality:
+ * Fills Uci Ind Pdu Info carried on Pucch Format 0/Format 1
+ *
+ * @params[in] fapi_uci_o_pucch_f0f1_t *
+ * pucchPdu
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t fillPucchF0F1PduInfo(fapi_uci_o_pucch_f0f1_t *pduInfo, fapi_ul_pucch_pdu_t pucchPdu)
+{
+ uint8_t idx = 0;
+
+ pduInfo->handle = pucchPdu.handle;
+ pduInfo->pduBitmap = 1; //hardcoded for SR
+ pduInfo->pucchFormat = pucchPdu.formatType;
+ pduInfo->ul_cqi = 0;
+ pduInfo->rnti = pucchPdu.rnti;
+ pduInfo->timingAdvance = 0;
+ pduInfo->rssi = 0;
+ pduInfo->uciBits[idx] = 0; //TODO: FAPI spec ver. 222.10.01 has no info about UCI Bits
+ if(pduInfo->pduBitmap & SR_PDU_BITMASK)
+ {
+ pduInfo->srInfo.srIndication = SR_DETECTED;
+ pduInfo->srInfo.srConfidenceLevel = CONFDC_LEVEL_GOOD;
+ }
+ if(pduInfo->pduBitmap & HARQ_PDU_BITMASK)
+ {
+ pduInfo->harqInfo.numHarq++;
+ pduInfo->harqInfo.harqConfidenceLevel = CONFDC_LEVEL_GOOD;
+ for(idx = 0; idx < pduInfo->harqInfo.numHarq; idx++)
+ {
+ pduInfo->harqInfo.harqValue[idx] = HARQ_PASS;
+ }
+ }
+ return ROK;
+}
+/*******************************************************************
+ *
+ * @brief Fills UCI Pdu Information
+ *
+ * @details
+ *
+ * Function : fillUciPduInfo
+ *
+ * Functionality:
+ * Fills UCI Pdu Information
+ *
+ * @params[in] Pointer to uciPdu
+ * pucchPdu
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t fillUciPduInfo(fapi_uci_pdu_info_t *uciPdu, fapi_ul_pucch_pdu_t pucchPdu)
+{
+ uint8_t ret = ROK;
+
+ /*TODO: The pduType is hardcoded here to support
+ UCI Ind for PUCCH forat0/format1. This is to be
+ modified when we get SR form UE */
+ uciPdu->pduType = UCI_IND_PUCCH_F0F1;
+ switch(uciPdu->pduType)
+ {
+ case UCI_IND_PUSCH:
+ break;
+ case UCI_IND_PUCCH_F0F1:
+ {
+ fapi_uci_o_pucch_f0f1_t *pduInfo = NULLP;
+
+ pduInfo = &uciPdu->uci.uciPucchF0F1;
+ ret = fillPucchF0F1PduInfo(pduInfo, pucchPdu);
+ uciPdu->pduSize = sizeof(fapi_uci_o_pucch_f0f1_t);
+ }
+ break;
+ case UCI_IND_PUCCH_F2F3F4:
+ break;
+ default:
+ DU_LOG("\nPHY_STUB: Invalid Pdu Type %d", uciPdu->pduType);
+ break;
+ }
+ return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief Build and send Uci indication
+ *
+ * @details
+ *
+ * Function : l1BuildAndSendUciInd
+ *
+ * Functionality:
+ * Build and send Uci indication
+ *
+ * @params[in] SFN
+ * Slot
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t l1BuildAndSendUciInd(uint16_t slot, uint16_t sfn, fapi_ul_pucch_pdu_t pucchPdu)
+{
+ uint8_t uciIdx = 0;
+ uint8_t nUciPdus = 0;
+ uint8_t ret = ROK;
+ uint32_t msgLen = 0;
+ fapi_uci_indication_t *uciInd = NULLP;
+
+ MAC_ALLOC(uciInd, sizeof(fapi_uci_indication_t));
+ if(!uciInd)
+ {
+ printf("\nPHY_STUB: Memory allocation failed for UCI Indication");
+ return RFAILED;
+ }
+ memset(uciInd, 0, sizeof(fapi_uci_indication_t));
+ uciInd->sfn = sfn;
+ uciInd->slot = slot;
+ uciInd->numUcis = 1; //consdering the UCI Ind for SR
+ nUciPdus = uciInd->numUcis;
+ while(nUciPdus)
+ {
+ ret = fillUciPduInfo(&uciInd->uciPdu[uciIdx], pucchPdu);
+ uciIdx++;
+ nUciPdus--;
+ }
+ if(ret == ROK)
+ {
+ msgLen = sizeof(fapi_uci_indication_t)- sizeof(fapi_msg_t);
+ fillMsgHeader(&uciInd->header, FAPI_UCI_INDICATION, msgLen);
+
+ /* Sending UCI indication to MAC */
+ DU_LOG("\nPHY STUB: Sending UCI Indication to MAC");
+ procPhyMessages(uciInd->header.msg_id, sizeof(fapi_uci_indication_t), (void *)uciInd);
+ }
+ MAC_FREE(uciInd, sizeof(fapi_uci_indication_t));
+ return ret;
+}
+#endif
+
+/*******************************************************************
+ *
+ * @brief Handles Ul Tti request received from MAC
+ *
+ * @details
+ *
+ * Function : l1HdlUlTtiReq
+ *
+ * Functionality:
+ * -Handles Ul Tti request received from MAC
+ *
+ * @params[in] Message length
+ * Ul Tti request message pointer
+ *
+ * @return void
+ *
+ * ****************************************************************/
+
+S16 l1HdlUlTtiReq(uint16_t msgLen, void *msg)
+{
+#ifdef INTEL_FAPI
+ fapi_ul_tti_req_t *ulTtiReq = NULLP;
+
+ DU_LOG("\nPHY STUB: Received UL TTI Request");
+
+ ulTtiReq = (fapi_ul_tti_req_t *)msg;
+ uint8_t numPdus = ulTtiReq->nPdus;
+
+ if(numPdus == 0)
+ {
+ DU_LOG("\nPHY STUB: No PDU in UL TTI");
+ }
+ while(numPdus)
+ {
+ if(ulTtiReq->pdus[numPdus-1].pduType == 0)
+ {
+ DU_LOG("\nPHY STUB: PRACH PDU");
+ }
+ if(ulTtiReq->pdus[numPdus-1].pduType == 1)
+ {
+ DU_LOG("\nPHY STUB: PUSCH PDU");
+ l1BuildAndSendRxDataInd(ulTtiReq->slot, ulTtiReq->sfn, \
+ ulTtiReq->pdus[numPdus-1].pdu.pusch_pdu);
+ }
+ if(ulTtiReq->pdus[numPdus-1].pduType == 2)
+ {
+ DU_LOG("\nPHY STUB: PUCCH PDU");
+ fapi_ul_tti_req_t ulTtiSlotInd;
+ memset(&ulTtiSlotInd, 0, sizeof(fapi_ul_tti_req_t));
+ ulTtiSlotInd.slot = ulTtiReq->slot;
+ ulTtiSlotInd.sfn = ulTtiReq->sfn;
+ ADD_DELTA_TO_TIME(ulTtiSlotInd, ulTtiSlotInd, SLOT_DELAY);
+ l1BuildAndSendUciInd(ulTtiSlotInd.slot, ulTtiSlotInd.sfn, \
+ ulTtiReq->pdus[numPdus-1].pdu.pucch_pdu);
+ }
+ numPdus--;
+ }
+
+ if(rachIndSent == false && ulTtiReq->sfn == 2 && ulTtiReq->slot == 6)
+ {
+ rachIndSent = true;
+ l1BuildAndSendRachInd(ulTtiReq->slot, ulTtiReq->sfn);
+ }
+
+ MAC_FREE(ulTtiReq, msgLen);
+#endif
+ return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Builds and Send the stop Indication message to MAC
+ *
+ * @details
+ *
+ * Function : l1BuildAndSendStopInd
+ *
+ * Functionality:
+ * -Send the Stop indication Message to MAC
+ *
+ *
+ * @return void
+ *
+ * ****************************************************************/
+uint16_t l1BuildAndSendStopInd()
+{
+#ifdef INTEL_FAPI
+ fapi_stop_ind_t *stopIndMsg = NULLP;
+ uint32_t msgLen = 0;
+
+ MAC_ALLOC(stopIndMsg, sizeof(fapi_stop_ind_t));
+ if(!stopIndMsg)
+ {
+ DU_LOG("\nPHY_STUB: Memory allocation failed for stop Indication Message");
+ return RFAILED;
+ }
+ else
+ {
+ fillMsgHeader(&stopIndMsg->header, FAPI_STOP_INDICATION, msgLen);
+ DU_LOG("\n\nPHY_STUB: Processing Stop indication to MAC");
+ procPhyMessages(stopIndMsg->header.msg_id,\
+ sizeof(fapi_stop_ind_t), (void*)stopIndMsg);
+ MAC_FREE(stopIndMsg, sizeof(fapi_stop_ind_t));
+ }
+#endif
+ return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Handles stop request received from MAC
+ *
+ * @details
+ *
+ * Function : l1HdlStopReq
+ *
+ * Functionality:
+ * -Handles stop request received from MAC
+ *
+ * @params[in] Message length
+ * stop request message pointer
+ *
+ * @return void
+ *
+ * ****************************************************************/
+
+S16 l1HdlStopReq(uint32_t msgLen, void *msg)
+{
+#ifdef INTEL_FAPI
+ fapi_stop_req_t *stopReq = (fapi_stop_req_t *)msg;
+
+ if(lwrMacCb.phyState == PHY_STATE_RUNNING)
+ {
+ l1HdlSlotIndicaion(TRUE);
+ DU_LOG("\nPHY_STUB: Slot Indication is stopped successfully");
+ l1BuildAndSendStopInd();
+ MAC_FREE(stopReq, msgLen);
+ }
+ else
+ {
+ DU_LOG("\nPHY_STUB: Received Stop Req in PHY State %d", lwrMacCb.phyState);
+ return RFAILED;
+ }
+#endif
+ return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Build And Send Rx Data Ind for Msg5
+ *
+ * @details
+ *
+ * Function : l1BuildAndSendMsg5
+ *
+ * Functionality: Build And Send Rx Data Ind for Msg5
+ *
+ * @params[in] SFN
+ * Slot
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t l1BuildAndSendMsg5(uint16_t sfn, uint16_t slot)
+{
+#ifdef INTEL_FAPI
+ uint8_t idx = 0;
+ fapi_rx_data_indication_t *rxDataInd;
+ fapi_pdu_ind_info_t *pduInfo;
+ uint8_t *pdu;
+ uint16_t byteIdx = 0;
+ uint32_t msgLen = 0;
+
+ MAC_ALLOC(rxDataInd, sizeof(fapi_rx_data_indication_t));
+ if(!rxDataInd)
+ {
+ printf("\nPHY_STUB: Memory allocation failed for Rx Data Indication for msg5");
+ return RFAILED;
+ }
+ memset(rxDataInd, 0, sizeof(fapi_rx_data_indication_t));
+
+ /* TODO: Fill the required values */
+ msgLen = sizeof(fapi_rx_data_indication_t) - sizeof(fapi_msg_t);
+ rxDataInd->sfn = sfn;
+ rxDataInd->slot = slot;
+ rxDataInd->numPdus = 1;
+
+ pduInfo = &rxDataInd->pdus[idx];
+ pduInfo->handle = 100;
+ pduInfo->rnti = 100;
+ pduInfo->harqId = 1;
+ pduInfo->pdu_length = 25;
+ pduInfo->ul_cqi = 0;
+ pduInfo->timingAdvance = 0;
+ pduInfo->rssi = 0;
+
+ /* Filling pdu with random values for testing */
+ pduInfo->pduData = NULL;
+ MAC_ALLOC(pduInfo->pduData, pduInfo->pdu_length);
+ if(!pduInfo->pduData)
+ {
+ printf("\nPHY_STUB: Memory allocation failed for Rx Data Pdu");
+ return RFAILED;
+ }
+
+ /* Filling PDU */
+ pdu = (uint8_t *)pduInfo->pduData;
+
+ uint8_t msg5PduLen = 33;
+ /* For RRC setup complete
+ MAC subheader format is R/F/LCId/L (2/3 bytes)
+ LCId is 1 for SRB1
+ L is length of PDU i.e 6bytes here
+ From 38.321 section 6.1.1
+ */
+ uint8_t msg5[] = {1, msg5PduLen, 0, 0, 16, 0, 5, 223, 128, 16, 94, \
+ 64, 3, 64, 89, 61, 138, 64, 0, 0, 0, 4, 0, 0, 4, 68, 11, 128, \
+ 184, 56, 0, 0, 0, 0, 0};
+
+ msg5PduLen += 2; /* 2bytes of header */
+ memcpy(pdu, &msg5, msg5PduLen);
+ byteIdx += msg5PduLen; /* 2 bytes of header */
+
+ /* Filling MAC SDU for Padding bytes*/
+ if(byteIdx < pduInfo->pdu_length)
+ {
+ /* For Padding
+ MAC subheader format is R/R/LCId (1byte)
+ LCId is 63 for padding
+ From 38.321 section 6.1.1
+ */
+ pdu[byteIdx++] = 63;
+
+ for(; byteIdx < pduInfo->pdu_length; byteIdx++)
+ pdu[byteIdx] = 0;
+ }
+ msgLen += pduInfo->pdu_length;
+
+ fillMsgHeader(&rxDataInd->header, FAPI_RX_DATA_INDICATION, msgLen);
+
+ /* Sending Rx data indication to MAC */
+ DU_LOG("\nPHY STUB: Sending Rx data Indication to MAC");
+ procPhyMessages(rxDataInd->header.msg_id, sizeof(fapi_rx_data_indication_t), (void *)rxDataInd);
+
+ if(pduInfo->pdu_length)
+ MAC_FREE(pduInfo->pduData, pduInfo->pdu_length);
+ MAC_FREE(rxDataInd, sizeof(fapi_rx_data_indication_t));
+#endif
+ return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Handles Ul Dci request received from MAC
+ *
+ * @details
+ *
+ * Function : l1HdlUlDciReq
+ *
+ * Functionality:
+ * -Handles Ul Dci request received from MAC
+ *
+ * @params[in] Message length
+ * Ul Dci request message pointer
+ *
+ * @return void
+ *
+ * ****************************************************************/
+
+S16 l1HdlUlDciReq(uint16_t msgLen, void *msg)
+{
+#ifdef INTEL_FAPI
+ fapi_ul_dci_req_t *ulDciReq = NULLP;
+
+ ulDciReq = (fapi_ul_dci_req_t *)msg;
+ uint8_t numPdus = ulDciReq->numPdus;
+
+ while(numPdus)
+ {
+ if(ulDciReq->pdus[numPdus-1].pduType == 0)
+ {
+ DU_LOG("\nPHY STUB: Received UL DCI Request for PDCCH PDU");
+ //l1BuildAndSendMsg5(ulDciReq->sfn, ulDciReq->slot);
+ //msg5Sent = true;
+ }
+ numPdus--;
+ }
+
+ MAC_FREE(ulDciReq, msgLen);
+#endif
+ return ROK;
+}
+