--- /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 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;
+}
Code Review / o-du / phy.git / blobdiff