--- /dev/null
+/******************************************************************************
+*
+* Copyright (c) 2019 Intel.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*
+*******************************************************************************/
+/**
+ * @file
+ * This file consist of implementation of FAPI RACH.indication message.
+ *
+ **/
+
+#include "nr5g_fapi_framework.h"
+#include "gnb_l1_l2_api.h"
+#include "nr5g_fapi_fapi2mac_api.h"
+#include "nr5g_fapi_fapi2mac_p7_proc.h"
+#include "nr5g_fapi_fapi2mac_p7_pvt_proc.h"
+
+ /** @ingroup group_source_api_p7_fapi2mac_proc
+ *
+ * @param[in] p_phy_ctx Pointer to PHY Context.
+ * @param[in] p_phy_rach_ind Pointer to FAPI RACH.indication message structure.
+ *
+ * @return Returns ::SUCCESS and ::FAILURE.
+ *
+ * @description
+ * This message includes RACH PDU.
+ *
+**/
+uint8_t nr5g_fapi_rach_indication(
+ p_nr5g_fapi_phy_ctx_t p_phy_ctx,
+ PRXRACHIndicationStruct p_phy_rach_ind)
+{
+ uint8_t phy_id;
+
+ fapi_rach_indication_t *p_fapi_rach_ind;
+ p_fapi_api_queue_elem_t p_list_elem;
+ p_nr5g_fapi_phy_instance_t p_phy_instance = NULL;
+ nr5g_fapi_stats_t *p_stats;
+
+ if (NULL == p_phy_ctx) {
+ NR5G_FAPI_LOG(ERROR_LOG, ("[RACH.indication] Invalid " "phy context"));
+ return FAILURE;
+ }
+
+ if (NULL == p_phy_rach_ind) {
+ NR5G_FAPI_LOG(ERROR_LOG, ("[RACH.indication] Invalid handle to phy "
+ "RACH indication"));
+ return FAILURE;
+ }
+
+ phy_id = p_phy_rach_ind->sSFN_Slot.nCarrierIdx;
+ p_phy_instance = &p_phy_ctx->phy_instance[phy_id];
+ if ((p_phy_instance->phy_id != phy_id)) {
+ NR5G_FAPI_LOG(ERROR_LOG, ("[RACH.indication] Invalid " "phy instance"));
+ return FAILURE;
+ }
+
+ p_stats = &p_phy_instance->stats;
+ p_stats->iapi_stats.iapi_rach_ind++;
+
+ p_list_elem =
+ nr5g_fapi_fapi2mac_create_api_list_elem(FAPI_RACH_INDICATION, 1,
+ sizeof(fapi_rach_indication_t));
+
+ if (!p_list_elem) {
+ NR5G_FAPI_LOG(ERROR_LOG, ("[RACH.indication] Unable to create "
+ "list element. Out of memory!!!"));
+ return FAILURE;
+ }
+
+ p_fapi_rach_ind = (fapi_rach_indication_t *) (p_list_elem + 1);
+ p_fapi_rach_ind->header.msg_id = FAPI_RACH_INDICATION;
+ p_fapi_rach_ind->header.length = (uint16_t) sizeof(fapi_rach_indication_t);
+
+ if (nr5g_fapi_rach_indication_to_fapi_translation(p_phy_instance,
+ p_phy_rach_ind, p_fapi_rach_ind)) {
+ NR5G_FAPI_LOG(ERROR_LOG,
+ ("[RACH.indication] L1 to FAPI " "translation failed"));
+ return FAILURE;
+ }
+
+ nr5g_fapi_fapi2mac_add_api_to_list(phy_id, p_list_elem);
+
+ p_stats->fapi_stats.fapi_rach_ind++;
+ NR5G_FAPI_LOG(DEBUG_LOG, ("[RACH.indication][%d][%d,%d]",
+ p_phy_instance->phy_id,
+ p_phy_rach_ind->sSFN_Slot.nSFN, p_phy_rach_ind->sSFN_Slot.nSlot));
+
+ return SUCCESS;
+}
+
+ /** @ingroup group_source_api_p7_fapi2mac_proc
+ *
+ * @param[in] slot_index Variable holding nStartSlotdx received in IAPI RACH.Indication.
+ * @param[in] freq_index Variable holding nFreqIdx received in IAPI RACH.Indication.
+ * @param[in] symbol_index Variable holding nSymbolIdx received in IAPI RACH.Indication.
+ * @param[in] num_pdus Variable holding the num_pdus filled in FAPI RACH.Indication till then.
+ * @param[in] p_fapi_rach_ind Pointer to FAPI RACH.indication structure.
+ *
+ * @return Returns pdu_index at which slot_index and freq_index match occurs
+ *
+ *
+ * @description
+ * This function returns the pdu_index at which slot_index and freq_index match
+ * occurs in FAPI RACH.Indication populated till then
+ *
+**/
+uint8_t nr5g_fapi_start_slot_freq_idx_occ(
+ uint8_t slot_index,
+ uint8_t freq_index,
+ uint8_t symbol_index,
+ uint8_t num_pdus,
+ fapi_rach_indication_t * p_fapi_rach_ind)
+{
+ uint8_t i, pdu_index = 0xFF;
+
+ fapi_rach_pdu_t *p_fapi_rach_pdu;
+
+ for (i = 0; i < num_pdus; i++) {
+ p_fapi_rach_pdu = &p_fapi_rach_ind->rachPdu[i];
+ if ((slot_index == p_fapi_rach_pdu->slotIndex)
+ && (freq_index == p_fapi_rach_pdu->freqIndex)
+ && (symbol_index == p_fapi_rach_pdu->symbolIndex)) {
+ pdu_index = i;
+ break;
+ }
+ }
+ return pdu_index;
+}
+
+ /** @ingroup group_source_api_p7_fapi2mac_proc
+ *
+ * @param[in] p_phy_instance Pointer to PHY instance.
+ * @param[in] p_phy_rach_ind Pointer to IAPI RACH.indication structure.
+ * @param[out] p_fapi_rach_ind Pointer to FAPI RACH.indication structure.
+ *
+ * @return Returns ::SUCCESS and ::FAILURE.
+ *
+ * @description
+ * This function converts IAPI RACH.indication to FAPI RACH.indication
+ * structure.
+ *
+**/
+uint8_t nr5g_fapi_rach_indication_to_fapi_translation(
+ p_nr5g_fapi_phy_instance_t p_phy_instance,
+ PRXRACHIndicationStruct p_phy_rach_ind,
+ fapi_rach_indication_t * p_fapi_rach_ind)
+{
+ uint8_t num_preamble, num_pdus = 0, i;
+ uint8_t slot_no, preamble_no;
+ uint8_t slot_freq_idx_entry;
+ uint8_t slot_index, freq_index, symbol_index;
+ uint16_t frame_no;
+
+ fapi_rach_pdu_t *p_fapi_rach_pdu;
+ fapi_rach_pdu_t *p_fapi_rach_pdu_match;
+ fapi_preamble_info_t *p_fapi_preamble_info;
+ nr5g_fapi_ul_slot_info_t *p_ul_slot_info;
+ nr5g_fapi_stats_t *p_stats;
+ PreambleStruct *p_phy_preamble_struct;
+
+ p_stats = &p_phy_instance->stats;
+
+ frame_no = p_fapi_rach_ind->sfn = p_phy_rach_ind->sSFN_Slot.nSFN;
+ slot_no = p_fapi_rach_ind->slot = p_phy_rach_ind->sSFN_Slot.nSlot;
+
+ p_ul_slot_info =
+ nr5g_fapi_get_ul_slot_info(frame_no, slot_no, p_phy_instance);
+
+ if (p_ul_slot_info == NULL) {
+ NR5G_FAPI_LOG(ERROR_LOG, ("[RACH.indication] No Valid data available "
+ "for frame :%d and slot: %d", frame_no, slot_no));
+ return FAILURE;
+ }
+
+ if (p_ul_slot_info->rach_presence == 0) {
+ NR5G_FAPI_LOG(ERROR_LOG, ("[RACHindication] RACH is not requested"
+ "for frame :%d and slot: %d", frame_no, slot_no));
+ return FAILURE;
+ }
+
+ num_preamble = p_phy_rach_ind->nNrOfPreamb;
+ for (i = 0; i < num_preamble; i++) {
+ p_stats->iapi_stats.iapi_rach_preambles++;
+ p_phy_preamble_struct = &p_phy_rach_ind->sPreambleStruct[i];
+ slot_index = p_phy_preamble_struct->nStartSlotdx;
+ freq_index = p_phy_preamble_struct->nFreqIdx;
+ symbol_index = p_phy_preamble_struct->nStartSymbIdx;
+ //returns 0xFF if its a new preamble, else pdu index of p_fapi_rach_ind;
+ slot_freq_idx_entry = nr5g_fapi_start_slot_freq_idx_occ(slot_index,
+ freq_index, symbol_index, num_pdus, p_fapi_rach_ind);
+ if (slot_freq_idx_entry == 0xFF) {
+ p_fapi_rach_pdu = &p_fapi_rach_ind->rachPdu[i];
+ p_fapi_rach_pdu->phyCellId = p_ul_slot_info->rach_info.phy_cell_id;
+ p_fapi_rach_pdu->numPreamble = 0;
+ p_fapi_rach_pdu->symbolIndex = p_phy_preamble_struct->nStartSymbIdx;
+ p_fapi_rach_pdu->slotIndex = slot_index;
+ p_fapi_rach_pdu->freqIndex = freq_index;
+ p_fapi_rach_pdu->avgRssi = 0xFF;
+ p_fapi_rach_pdu->avgSnr = 0xFF;
+ preamble_no = p_fapi_rach_pdu->numPreamble++;
+ p_fapi_preamble_info = &p_fapi_rach_pdu->preambleInfo[preamble_no];
+ num_pdus++;
+ p_stats->fapi_stats.fapi_rach_ind_pdus++;
+ } else {
+ p_fapi_rach_pdu_match =
+ &p_fapi_rach_ind->rachPdu[slot_freq_idx_entry];
+ preamble_no = p_fapi_rach_pdu_match->numPreamble++;
+ p_fapi_preamble_info =
+ &p_fapi_rach_pdu_match->preambleInfo[preamble_no];
+ }
+ p_fapi_preamble_info->preambleIndex = p_phy_preamble_struct->nPreambIdx;
+ p_fapi_preamble_info->timingAdvance = p_phy_preamble_struct->nTa;
+ p_fapi_preamble_info->preamblePwr = p_phy_preamble_struct->nPreambPwr;
+ }
+ p_fapi_rach_ind->numPdus = num_pdus;
+
+ return SUCCESS;
+}
Code Review / o-du / phy.git / blobdiff