X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?p=o-du%2Fphy.git;a=blobdiff_plain;f=fapi_5g%2Fsource%2Fapi%2Ffapi2mac%2Fp7%2Fnr5g_fapi_proc_rach_ind.c;fp=fapi_5g%2Fsource%2Fapi%2Ffapi2mac%2Fp7%2Fnr5g_fapi_proc_rach_ind.c;h=bd40411bc28f096a2a0dd506e3a528caa1f36441;hp=0000000000000000000000000000000000000000;hb=9d66fca5c45c8b3e0d6eab6d51a90c8e9d2614dc;hpb=2fbf70096f64af622da983e88c5a64e90ad9bdbd diff --git a/fapi_5g/source/api/fapi2mac/p7/nr5g_fapi_proc_rach_ind.c b/fapi_5g/source/api/fapi2mac/p7/nr5g_fapi_proc_rach_ind.c new file mode 100644 index 0000000..bd40411 --- /dev/null +++ b/fapi_5g/source/api/fapi2mac/p7/nr5g_fapi_proc_rach_ind.c @@ -0,0 +1,231 @@ +/****************************************************************************** +* +* 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; +}