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_srs_ind.c;fp=fapi_5g%2Fsource%2Fapi%2Ffapi2mac%2Fp7%2Fnr5g_fapi_proc_srs_ind.c;h=ebda4ede5c0631e1399eddfcd9e309f8a6b8eae1;hp=0000000000000000000000000000000000000000;hb=9d66fca5c45c8b3e0d6eab6d51a90c8e9d2614dc;hpb=2fbf70096f64af622da983e88c5a64e90ad9bdbd diff --git a/fapi_5g/source/api/fapi2mac/p7/nr5g_fapi_proc_srs_ind.c b/fapi_5g/source/api/fapi2mac/p7/nr5g_fapi_proc_srs_ind.c new file mode 100644 index 0000000..ebda4ed --- /dev/null +++ b/fapi_5g/source/api/fapi2mac/p7/nr5g_fapi_proc_srs_ind.c @@ -0,0 +1,225 @@ +/****************************************************************************** +* +* 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 SRS.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_srs_ind Pointer to FAPI SRS.indication message structure. + * + * @return Returns ::SUCCESS and ::FAILURE. + * + * @description + * This message includes SRS PDU. + * +**/ +uint8_t nr5g_fapi_srs_indication( + p_nr5g_fapi_phy_ctx_t p_phy_ctx, + PRXSRSIndicationStruct p_phy_srs_ind) +{ + uint8_t phy_id; + fapi_srs_indication_t *p_fapi_srs_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, ("[SRS.indication] Invalid " "Phy Context")); + return FAILURE; + } + + if (NULL == p_phy_srs_ind) { + NR5G_FAPI_LOG(ERROR_LOG, ("[SRS.indication] Invalid " + "SRS Indication")); + return FAILURE; + } + + phy_id = p_phy_srs_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, ("[SRS.indication] Invalid " "Phy Instance")); + return FAILURE; + } + + p_stats = &p_phy_instance->stats; + p_stats->iapi_stats.iapi_srs_ind++; + + p_list_elem = + nr5g_fapi_fapi2mac_create_api_list_elem(FAPI_SRS_INDICATION, 1, + sizeof(fapi_srs_indication_t)); + if (!p_list_elem) { + NR5G_FAPI_LOG(ERROR_LOG, ("[SRS.indication] Unable " + "to create list element. Out of memory!!!")); + return FAILURE; + } + + p_fapi_srs_ind = (fapi_srs_indication_t *) (p_list_elem + 1); + p_fapi_srs_ind->header.msg_id = FAPI_SRS_INDICATION; + p_fapi_srs_ind->header.length = (uint16_t) sizeof(fapi_srs_indication_t); + + if (nr5g_fapi_srs_indication_to_fapi_translation(p_phy_instance, + p_phy_srs_ind, p_fapi_srs_ind)) { + NR5G_FAPI_LOG(ERROR_LOG, + ("[SRS.indication] L1 to FAPI " "translation failed")); + return FAILURE; + } + + /* Add element to send list */ + nr5g_fapi_fapi2mac_add_api_to_list(phy_id, p_list_elem); + + p_stats->fapi_stats.fapi_srs_ind++; + NR5G_FAPI_LOG(DEBUG_LOG, ("[SRS.indication][%d][%d,%d]", + p_phy_instance->phy_id, + p_phy_srs_ind->sSFN_Slot.nSFN, + p_phy_srs_ind->sSFN_Slot.nSlot)); + + return SUCCESS; +} + + /** @ingroup group_source_api_p7_fapi2mac_proc + * + * @param[in] ue_id Variable holding ue_id received SRS.Indication.. + * @param[in] p_ul_slot_info Pointer to ul slot info structure that stores the + * UL_TTI.request PDU info. + * + * @return Returns Pointer to srs info, if handle of p_ul_slot_info matches ue_id. + NULL, if handle of p_ul_slot_info not matches ue_id + * + * @description + * This function retrieves the srs info stored during corresponding UL_TTI.request processing. + * based on ue_id. + * +**/ +nr5g_fapi_srs_info_t *nr5g_fapi_get_srs_info( + uint16_t nUEId, + nr5g_fapi_ul_slot_info_t * p_ul_slot_info) +{ + uint8_t i, num_srs; + + nr5g_fapi_srs_info_t *p_srs_info; + + num_srs = p_ul_slot_info->num_srs; + for (i = 0; i < num_srs; i++) { + p_srs_info = &p_ul_slot_info->srs_info[i]; + if (p_srs_info->handle == nUEId) { + return p_srs_info; + } + } + return NULL; +} + + /** @ingroup group_source_api_p7_fapi2mac_proc + * + * @param[in] p_phy_instance Pointer to PHY instance. + * @param[in] p_phy_srs_ind Pointer to IAPI SRS.indication structure. + * @param[out] p_fapi_srs_ind Pointer to FAPI SRS.indication structure. + * + * @return Returns ::SUCCESS and ::FAILURE. + * + * @description + * This function converts IAPI SRS.indication to FAPI SRS.indication + * structure. + * +**/ +uint8_t nr5g_fapi_srs_indication_to_fapi_translation( + p_nr5g_fapi_phy_instance_t p_phy_instance, + PRXSRSIndicationStruct p_phy_srs_ind, + fapi_srs_indication_t * p_fapi_srs_ind) +{ + uint8_t num_srs_pdus, i; + uint8_t slot_no, num_rept_symbols, nr_of_symbols; + uint16_t frame_no, num_rbs, j, k; + int8_t wideband_snr = 0, rb_snr; + int16_t temp = 0; + + nr5g_fapi_srs_info_t *p_srs_info; + fapi_srs_pdu_t *p_fapi_srs_pdu; + fapi_symb_snr_t *p_fapi_symb_snr; + nr5g_fapi_ul_slot_info_t *p_ul_slot_info; + nr5g_fapi_stats_t *p_stats; + ULSRSEstStruct *p_ul_srs_est_struct; + + p_stats = &p_phy_instance->stats; + + frame_no = p_fapi_srs_ind->sfn = p_phy_srs_ind->sSFN_Slot.nSFN; + slot_no = p_fapi_srs_ind->slot = p_phy_srs_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, ("[SRS.indication] No Valid data available " + "for frame :%d and slot: %d", frame_no, slot_no)); + return FAILURE; + } + + num_srs_pdus = p_fapi_srs_ind->numPdus = p_phy_srs_ind->nNrOfSrs; + for (i = 0; i < num_srs_pdus; i++) { + p_stats->iapi_stats.iapi_srs_ind_pdus++; + p_fapi_srs_pdu = &p_fapi_srs_ind->srsPdus[i]; + p_ul_srs_est_struct = &p_phy_srs_ind->sULSRSEstStruct[i]; + p_srs_info = + nr5g_fapi_get_srs_info(p_ul_srs_est_struct->nUEId, p_ul_slot_info); + if (p_srs_info == NULL) { + NR5G_FAPI_LOG(ERROR_LOG, + ("[SRS.indication] No Valid data available " + "for nUEId:%d with frameno:%d, slot_no:%d", + p_ul_srs_est_struct->nUEId, frame_no, slot_no)); + return FAILURE; + } + + p_fapi_srs_pdu->handle = p_srs_info->handle; + p_fapi_srs_pdu->rnti = p_ul_srs_est_struct->nRNTI; + p_fapi_srs_pdu->timingAdvance = 0xFFFF; + + nr_of_symbols = p_fapi_srs_pdu->numSymbols = + p_ul_srs_est_struct->nNrOfSymbols; + for (j = 0; j < nr_of_symbols; j++) { + temp += p_ul_srs_est_struct->nWideBandSNR[j]; + } + wideband_snr = temp / nr_of_symbols; + + p_fapi_srs_pdu->wideBandSnr = (wideband_snr + 64) * 2; + num_rept_symbols = p_fapi_srs_pdu->numReportedSymbols = 1; + + for (j = 0; j < num_rept_symbols; j++) { + p_fapi_symb_snr = &p_fapi_srs_pdu->symbSnr[j]; + num_rbs = p_fapi_symb_snr->numRbs = + p_ul_srs_est_struct->nNrOfBlocks * 4; + + for (k = 0; k < num_rbs; k++) { + rb_snr = p_ul_srs_est_struct->nBlockSNR[k / 68][k % 68]; + p_fapi_symb_snr->rbSNR[k] = (rb_snr + 64) * 2; + } + } + p_stats->fapi_stats.fapi_srs_ind_pdus++; + } + + return SUCCESS; +}