1 /******************************************************************************
3 * Copyright (c) 2019 Intel.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 *******************************************************************************/
21 * This file consist of implementation of FAPI SRS.indication message.
25 #include "nr5g_fapi_framework.h"
26 #include "gnb_l1_l2_api.h"
27 #include "nr5g_fapi_fapi2mac_api.h"
28 #include "nr5g_fapi_fapi2mac_p7_proc.h"
29 #include "nr5g_fapi_fapi2mac_p7_pvt_proc.h"
30 #include "nr5g_fapi_memory.h"
32 /** @ingroup group_source_api_p7_fapi2mac_proc
34 * @param[in] p_phy_ctx Pointer to PHY context.
35 * @param[in] p_phy_srs_ind Pointer to FAPI SRS.indication message structure.
37 * @return Returns ::SUCCESS and ::FAILURE.
40 * This message includes SRS PDU.
43 uint8_t nr5g_fapi_srs_indication(
45 p_nr5g_fapi_phy_ctx_t p_phy_ctx,
46 p_fapi_api_stored_vendor_queue_elems vendor_extension_elems,
47 PRXSRSIndicationStruct p_phy_srs_ind)
50 fapi_srs_indication_t *p_fapi_srs_ind;
51 p_fapi_api_queue_elem_t p_list_elem;
52 p_nr5g_fapi_phy_instance_t p_phy_instance = NULL;
53 nr5g_fapi_stats_t *p_stats;
54 fapi_vendor_p7_ind_msg_t *p_fapi_vend_p7;
55 fapi_vendor_ext_srs_ind_t *p_fapi_vend_srs_ind;
57 if (NULL == p_phy_ctx) {
58 NR5G_FAPI_LOG(ERROR_LOG, ("[SRS.indication] Invalid " "Phy Context"));
62 if (NULL == p_phy_srs_ind) {
63 NR5G_FAPI_LOG(ERROR_LOG, ("[SRS.indication] Invalid "
68 phy_id = p_phy_srs_ind->sSFN_Slot.nCarrierIdx;
69 p_phy_instance = &p_phy_ctx->phy_instance[phy_id];
70 if (p_phy_instance->phy_id != phy_id) {
71 NR5G_FAPI_LOG(ERROR_LOG, ("[SRS.indication] Invalid " "Phy Instance"));
75 p_stats = &p_phy_instance->stats;
76 p_stats->iapi_stats.iapi_srs_ind++;
79 nr5g_fapi_fapi2mac_create_api_list_elem(FAPI_SRS_INDICATION, 1,
80 sizeof(fapi_srs_indication_t));
82 NR5G_FAPI_LOG(ERROR_LOG, ("[SRS.indication] Unable "
83 "to create list element. Out of memory!!!"));
87 p_fapi_srs_ind = (fapi_srs_indication_t *) (p_list_elem + 1);
88 p_fapi_srs_ind->header.msg_id = FAPI_SRS_INDICATION;
89 p_fapi_srs_ind->header.length = (uint16_t) sizeof(fapi_srs_indication_t);
92 nr5g_fapi_proc_vendor_p7_msg_get(vendor_extension_elems, phy_id);
94 p_fapi_vend_p7 ? &p_fapi_vend_p7->srs_ind : NULL;
95 if (nr5g_fapi_srs_indication_to_fapi_translation(is_urllc, p_phy_instance,
96 p_phy_srs_ind, p_fapi_srs_ind, p_fapi_vend_srs_ind)) {
97 NR5G_FAPI_LOG(ERROR_LOG,
98 ("[SRS.indication] L1 to FAPI " "translation failed"));
102 /* Add element to send list */
103 nr5g_fapi_fapi2mac_add_api_to_list(phy_id, p_list_elem, is_urllc);
105 p_stats->fapi_stats.fapi_srs_ind++;
106 NR5G_FAPI_LOG(DEBUG_LOG, ("[SRS.indication][%u][%u,%u,%u] is_urllc %u",
107 p_phy_instance->phy_id,
108 p_phy_srs_ind->sSFN_Slot.nSFN, p_phy_srs_ind->sSFN_Slot.nSlot,
109 p_phy_srs_ind->sSFN_Slot.nSym, is_urllc));
114 /** @ingroup group_source_api_p7_fapi2mac_proc
116 * @param[in] ue_id Variable holding ue_id received SRS.Indication..
117 * @param[in] p_ul_slot_info Pointer to ul slot info structure that stores the
118 * UL_TTI.request PDU info.
120 * @return Returns Pointer to srs info, if handle of p_ul_slot_info matches ue_id.
121 NULL, if handle of p_ul_slot_info not matches ue_id
124 * This function retrieves the srs info stored during corresponding UL_TTI.request processing.
128 nr5g_fapi_srs_info_t *nr5g_fapi_get_srs_info(
130 nr5g_fapi_ul_slot_info_t * p_ul_slot_info)
134 nr5g_fapi_srs_info_t *p_srs_info;
136 num_srs = p_ul_slot_info->num_srs;
137 for (i = 0; i < num_srs; i++) {
138 p_srs_info = &p_ul_slot_info->srs_info[i];
139 if (p_srs_info->handle == nUEId) {
146 /** @ingroup group_source_api_p7_fapi2mac_proc
148 * @param[in] p_phy_instance Pointer to PHY instance.
149 * @param[in] p_phy_srs_ind Pointer to IAPI SRS.indication structure.
150 * @param[out] p_fapi_srs_ind Pointer to FAPI SRS.indication structure.
152 * @return Returns ::SUCCESS and ::FAILURE.
155 * This function converts IAPI SRS.indication to FAPI SRS.indication
159 uint8_t nr5g_fapi_srs_indication_to_fapi_translation(
161 p_nr5g_fapi_phy_instance_t p_phy_instance,
162 PRXSRSIndicationStruct p_phy_srs_ind,
163 fapi_srs_indication_t * p_fapi_srs_ind,
164 fapi_vendor_ext_srs_ind_t * p_fapi_vend_srs_ind)
166 uint8_t num_srs_pdus, i;
167 uint8_t symbol_no, num_rept_symbols, nr_of_symbols;
168 uint16_t slot_no, frame_no, num_rbs, j, k;
169 int8_t wideband_snr = 0, rb_snr;
170 int16_t temp_sum_wideband_snr;
172 nr5g_fapi_srs_info_t *p_srs_info;
173 fapi_srs_pdu_t *p_fapi_srs_pdu;
174 fapi_symb_snr_t *p_fapi_symb_snr;
175 nr5g_fapi_ul_slot_info_t *p_ul_slot_info;
176 nr5g_fapi_stats_t *p_stats;
177 ULSRSEstStruct *p_ul_srs_est_struct;
178 fapi_vendor_ext_srs_pdu_t *p_vend_srs_pdu;
180 p_stats = &p_phy_instance->stats;
182 frame_no = p_fapi_srs_ind->sfn = p_phy_srs_ind->sSFN_Slot.nSFN;
183 slot_no = p_fapi_srs_ind->slot = p_phy_srs_ind->sSFN_Slot.nSlot;
184 symbol_no = p_phy_srs_ind->sSFN_Slot.nSym;
187 nr5g_fapi_get_ul_slot_info(is_urllc, frame_no, slot_no, symbol_no, p_phy_instance);
189 if (p_ul_slot_info == NULL) {
190 NR5G_FAPI_LOG(ERROR_LOG, ("[SRS.indication] No Valid data available "
191 "for frame :%d and slot: %d", frame_no, slot_no));
195 num_srs_pdus = p_fapi_srs_ind->numPdus = p_phy_srs_ind->nNrOfSrs;
196 for (i = 0; i < num_srs_pdus; i++) {
197 temp_sum_wideband_snr = 0;
198 p_stats->iapi_stats.iapi_srs_ind_pdus++;
199 p_fapi_srs_pdu = &p_fapi_srs_ind->srsPdus[i];
200 p_ul_srs_est_struct = &p_phy_srs_ind->sULSRSEstStruct[i];
202 nr5g_fapi_get_srs_info(p_ul_srs_est_struct->nUEId, p_ul_slot_info);
203 if (p_srs_info == NULL) {
204 NR5G_FAPI_LOG(ERROR_LOG,
205 ("[SRS.indication] No Valid data available "
206 "for nUEId:%d with frameno:%d, slot_no:%d",
207 p_ul_srs_est_struct->nUEId, frame_no, slot_no));
211 p_fapi_srs_pdu->handle = p_srs_info->handle;
212 p_fapi_srs_pdu->rnti = p_ul_srs_est_struct->nRNTI;
213 p_fapi_srs_pdu->timingAdvance = 0xFFFF;
215 nr_of_symbols = p_fapi_srs_pdu->numSymbols =
216 p_ul_srs_est_struct->nNrOfSymbols;
217 for (j = 0; j < nr_of_symbols; j++) {
218 temp_sum_wideband_snr += p_ul_srs_est_struct->nWideBandSNR[j];
220 wideband_snr = temp_sum_wideband_snr / nr_of_symbols;
222 p_fapi_srs_pdu->wideBandSnr = (wideband_snr + 64) * 2;
223 num_rept_symbols = p_fapi_srs_pdu->numReportedSymbols = 1;
225 for (j = 0; j < num_rept_symbols; j++) {
226 p_fapi_symb_snr = &p_fapi_srs_pdu->symbSnr[j];
227 num_rbs = p_fapi_symb_snr->numRbs =
228 p_ul_srs_est_struct->nNrOfBlocks * 4;
230 for (k = 0; k < num_rbs; k++) {
231 rb_snr = p_ul_srs_est_struct->nBlockSNR[k / 68][k % 68];
232 p_fapi_symb_snr->rbSNR[k] = (rb_snr + 64) * 2;
235 p_stats->fapi_stats.fapi_srs_ind_pdus++;
237 if(p_fapi_vend_srs_ind) { // Fill vendor ext
238 p_fapi_vend_srs_ind->num_pdus = p_phy_srs_ind->nNrOfSrs;
239 p_vend_srs_pdu = &p_fapi_vend_srs_ind->srs_pdus[i];
240 p_vend_srs_pdu->nr_of_port = p_ul_srs_est_struct->nNrOfPort;
241 p_vend_srs_pdu->nr_of_rx_ant = p_ul_srs_est_struct->nNrOfRxAnt;
242 p_vend_srs_pdu->nr_of_rbs = p_ul_srs_est_struct->nNrOfRbs;
243 p_vend_srs_pdu->is_chan_est_pres =
244 p_ul_srs_est_struct->nIsChanEstPres;
245 NR5G_FAPI_MEMCPY(p_vend_srs_pdu->p_srs_chan_est,
246 sizeof(p_vend_srs_pdu->p_srs_chan_est),
247 p_ul_srs_est_struct->pSrsChanEst,
248 sizeof(p_ul_srs_est_struct->pSrsChanEst));