fapi_5g/source/api/fapi2phy/p5/nr5g_fapi_proc_config_req.c

   1 /******************************************************************************
   2 *   Copyright (c) 2019 Intel.
   3 *
   4 *   Licensed under the Apache License, Version 2.0 (the "License");
   5 *   you may not use this file except in compliance with the License.
   6 *   You may obtain a copy of the License at
   7 *
   8 *       http://www.apache.org/licenses/LICENSE-2.0
   9 *
  10 *   Unless required by applicable law or agreed to in writing, software
  11 *   distributed under the License is distributed on an "AS IS" BASIS,
  12 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 *   See the License for the specific language governing permissions and
  14 *   limitations under the License.
  15 *
  16 *******************************************************************************/
  17
  18 /**
  19  * @file
  20  * This file consist of implementation of FAPI CONFIG.request message.
  21  *
  22  **/
  23
  24 #include "nr5g_fapi_framework.h"
  25 #include "gnb_l1_l2_api.h"
  26 #include "nr5g_fapi_fapi2mac_api.h"
  27 #include "nr5g_fapi_fapi2phy_api.h"
  28 #include "nr5g_fapi_fapi2phy_p5_proc.h"
  29 #include "nr5g_fapi_fapi2phy_p5_pvt_proc.h"
  30 #include "nr5g_fapi_memory.h"
  31
  32  /** @ingroup group_source_api_p5_fapi2phy_proc
  33  *
  34  *  @param[in]  p_phy_instance Pointer to PHY instance.
  35  *  @param[in]  p_fapi_req Pointer to FAPI CONFIG.request message structure.
  36  *  @param[in]  p_fapi_vendor_msg Pointer to FAPI vendor message structure.
  37  *  @return     Returns ::SUCCESS and ::FAILURE.
  38  *
  39  *  @description
  40  *  This message instructs how the PHY should be configured.
  41  *
  42  *  The *carrier_aggregation_level* parameter is a vendor specific
  43  *  configuration and programmed through Vendor Specific Message structure
  44  *  ::fapi_config_req_vendor_msg_t
  45  *
  46 **/
  47 uint8_t nr5g_fapi_config_request(
  48     bool is_urllc,
  49     p_nr5g_fapi_phy_instance_t p_phy_instance,
  50     fapi_config_req_t * p_fapi_req,
  51     fapi_vendor_msg_t * p_fapi_vendor_msg)
  52 {
  53     PCONFIGREQUESTStruct p_ia_config_req;
  54     PMAC2PHY_QUEUE_EL p_list_elem;
  55     nr5g_fapi_stats_t *p_stats;
  56
  57 #ifndef DEBUG_MODE
  58     /* Below print is for better logging on console in radio mode. */
  59     NR5G_FAPI_LOG(INFO_LOG, (""));
  60 #endif
  61
  62     if (NULL == p_phy_instance) {
  63         NR5G_FAPI_LOG(ERROR_LOG, ("[CONFIG.request] Invalid " "phy instance"));
  64         return FAILURE;
  65     }
  66     p_stats = &p_phy_instance->stats;
  67     p_stats->fapi_stats.fapi_config_req++;
  68
  69     if (NULL == p_fapi_req) {
  70         NR5G_FAPI_LOG(ERROR_LOG, ("[CONFIG.request] Invalid fapi " "message"));
  71         return FAILURE;
  72     }
  73
  74     if (NULL == p_fapi_vendor_msg) {
  75         NR5G_FAPI_LOG(ERROR_LOG, ("[CONFIG.request] Invalid fapi "
  76                 "vendor message"));
  77         return FAILURE;
  78     }
  79
  80     if (FAPI_STATE_RUNNING == p_phy_instance->state) {
  81         NR5G_FAPI_LOG(ERROR_LOG, ("[CONFIG.request] Message not "
  82                 "supported by PHY in Running State"));
  83         return FAILURE;
  84     }
  85
  86     p_list_elem = nr5g_fapi_fapi2phy_create_api_list_elem((uint8_t)
  87         MSG_TYPE_PHY_CONFIG_REQ, 1, (uint32_t) sizeof(CONFIGREQUESTStruct));
  88     if (!p_list_elem) {
  89         NR5G_FAPI_LOG(ERROR_LOG, ("[CONFIG.request] Unable to create "
  90                 "list element. Out of memory!!!"));
  91         return FAILURE;
  92     }
  93
  94     p_ia_config_req = (PCONFIGREQUESTStruct) (p_list_elem + 1);
  95     NR5G_FAPI_MEMSET(p_ia_config_req, sizeof(CONFIGREQUESTStruct), 0,
  96         sizeof(CONFIGREQUESTStruct));
  97     p_ia_config_req->sMsgHdr.nMessageType = MSG_TYPE_PHY_CONFIG_REQ;
  98     p_ia_config_req->sMsgHdr.nMessageLen =
  99         (uint16_t) sizeof(CONFIGREQUESTStruct);
 100     p_ia_config_req->nCarrierIdx = p_phy_instance->phy_id;
 101
 102     nr5g_fapi_config_req_to_phy_translation(p_phy_instance, p_fapi_req,
 103         p_ia_config_req);
 104     /* Vendor Parameters */
 105     if (p_fapi_vendor_msg) {
 106         p_ia_config_req->nCarrierAggregationLevel =
 107             p_fapi_vendor_msg->config_req_vendor.carrier_aggregation_level;
 108         p_ia_config_req->nGroupHopFlag =
 109             p_fapi_vendor_msg->config_req_vendor.group_hop_flag;
 110         p_ia_config_req->nSequenceHopFlag =
 111             p_fapi_vendor_msg->config_req_vendor.sequence_hop_flag;
 112         p_ia_config_req->nHoppingId =
 113             p_fapi_vendor_msg->config_req_vendor.hopping_id;
 114         p_ia_config_req->nUrllcCapable =
 115             p_fapi_vendor_msg->config_req_vendor.urllc_capable;
 116         p_ia_config_req->nUrllcMiniSlotMask =
 117             p_fapi_vendor_msg->config_req_vendor.urllc_mini_slot_mask;
 118         p_ia_config_req->nPrachNrofRxRU =
 119             p_fapi_vendor_msg->config_req_vendor.prach_nr_of_rx_ru;
 120         p_ia_config_req->nNrOfDLPorts =
 121             p_fapi_vendor_msg->config_req_vendor.nr_of_dl_ports;
 122         p_ia_config_req->nNrOfULPorts =
 123             p_fapi_vendor_msg->config_req_vendor.nr_of_ul_ports;
 124         p_ia_config_req->nSSBSubcSpacing =
 125             p_fapi_vendor_msg->config_req_vendor.ssb_subc_spacing;
 126         p_phy_instance->phy_config.use_vendor_EpreXSSB =
 127             p_fapi_vendor_msg->config_req_vendor.use_vendor_EpreXSSB;
 128     }
 129
 130     p_ia_config_req->nDLFftSize =
 131         nr5g_fapi_calc_fft_size(p_ia_config_req->nSubcCommon,
 132         p_ia_config_req->nDLBandwidth);
 133     p_ia_config_req->nULFftSize =
 134         nr5g_fapi_calc_fft_size(p_ia_config_req->nSubcCommon,
 135         p_ia_config_req->nULBandwidth);
 136
 137     /* Add element to send list */
 138     nr5g_fapi_fapi2phy_add_to_api_list(is_urllc, p_list_elem);
 139
 140     p_stats->iapi_stats.iapi_config_req++;
 141     NR5G_FAPI_LOG(INFO_LOG, ("[CONFIG.request][%d]", p_phy_instance->phy_id));
 142     return SUCCESS;
 143 }
 144
 145  /** @ingroup group_source_api_p5_fapi2phy_proc
 146  *
 147  *  @param[in]  p_phy_instance Pointer to PHY instance.
 148  *  @param[in]  p_fapi_req Pointer to FAPI CONFIG.request structure.
 149  *  @param[in]  p_ia_config_req Pointer to IAPI CONFIG.request structure.
 150  *
 151  *  @return     Returns ::SUCCESS and ::FAILURE.
 152  *
 153  *  @description
 154  *  This function converts FAPI CONFIG.request TLVs to IAPI Config.request
 155  *  structure.
 156  *
 157 **/
 158 uint8_t nr5g_fapi_config_req_to_phy_translation(
 159     p_nr5g_fapi_phy_instance_t p_phy_instance,
 160     fapi_config_req_t * p_fapi_req,
 161     PCONFIGREQUESTStruct p_ia_config_req)
 162 {
 163     fapi_uint32_tlv_t *tlvs = p_fapi_req->tlvs;
 164     uint32_t i = 0, j = 0, k = 0;
 165     uint32_t ss_pbch_power = 0;
 166     uint32_t mib = 0;
 167     uint32_t n_ssb_mask_idx = 0;
 168     uint32_t n_beamid_idx = 0;
 169     SLOTCONFIGStruct *p_sslot_Config = NULL;
 170
 171     while (i < p_fapi_req->number_of_tlvs) {
 172         switch (tlvs[i].tl.tag) {
 173             /***** Carrier Config *****/
 174             case FAPI_DL_BANDWIDTH_TAG:
 175                 p_ia_config_req->nDLBandwidth =
 176                     GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length);
 177                 break;
 178
 179             case FAPI_DL_FREQUENCY_TAG:
 180                 p_ia_config_req->nDLAbsFrePointA = tlvs[i++].value;
 181                 break;
 182
 183                 /* FAPI_DL_K0_TAG - NA */
 184                 /* FAPI_DL_GRIDSIZE_TAG - NA */
 185
 186             case FAPI_NUM_TX_ANT_TAG:
 187                 p_ia_config_req->nNrOfTxAnt =
 188                     GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length);
 189                 break;
 190
 191             case FAPI_UPLINK_BANDWIDTH_TAG:
 192                 p_ia_config_req->nULBandwidth =
 193                     GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length);
 194                 break;
 195
 196             case FAPI_UPLINK_FREQUENCY_TAG:
 197                 p_ia_config_req->nULAbsFrePointA = tlvs[i++].value;
 198                 break;
 199
 200                 /* FAPI_UL_K0_TAG - NA */
 201                 /* FAPI_UL_GRIDSIZE_TAG - NA */
 202
 203             case FAPI_NUM_RX_ANT_TAG:
 204                 p_phy_instance->phy_config.n_nr_of_rx_ant =
 205                     p_ia_config_req->nNrOfRxAnt =
 206                     GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length);
 207                 break;
 208
 209                 /* FAPI_FREQUENCY_SHIFT_7P5_KHZ_TAG - NA */
 210
 211             /***** Cell Config *****/
 212             case FAPI_PHY_CELL_ID_TAG:
 213                 p_phy_instance->phy_config.phy_cell_id =
 214                     p_ia_config_req->nPhyCellId =
 215                     GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length);
 216                 break;
 217
 218             case FAPI_FRAME_DUPLEX_TYPE_TAG:
 219                 p_ia_config_req->nFrameDuplexType =
 220                     GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length);
 221                 break;
 222
 223             /***** SSB Config *****/
 224             case FAPI_SS_PBCH_POWER_TAG:
 225                 ss_pbch_power = tlvs[i++].value;
 226                 if (0 == ss_pbch_power) {
 227                     p_ia_config_req->nSSBPwr = 1;
 228                 } else if (54002 == ss_pbch_power) {
 229                     p_ia_config_req->nSSBPwr = 20000;
 230                 } else {
 231                     p_ia_config_req->nSSBPwr = ss_pbch_power - 54000;
 232                 }
 233                 break;
 234
 235                 /* FAPI_BCH_PAYLOAD_TAG - NA */
 236
 237             case FAPI_SCS_COMMON_TAG:
 238                 p_ia_config_req->nSubcCommon =
 239                     p_ia_config_req->nSSBSubcSpacing =
 240                     p_phy_instance->phy_config.sub_c_common =
 241                     GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length);
 242                 break;
 243
 244             /***** PRACH Config *****/
 245             case FAPI_PRACH_SUBC_SPACING_TAG:
 246                 p_ia_config_req->nPrachSubcSpacing =
 247                     GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length);
 248                 break;
 249
 250             case FAPI_RESTRICTED_SET_CONFIG_TAG:
 251                 p_ia_config_req->nPrachRestrictSet =
 252                     GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length);
 253                 break;
 254
 255             case FAPI_NUM_PRACH_FD_OCCASIONS_TAG:
 256                 p_ia_config_req->nPrachFdm =
 257                     GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length);
 258                 break;
 259
 260             case FAPI_PRACH_CONFIG_INDEX_TAG:
 261                 p_ia_config_req->nPrachConfIdx =
 262                     GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length);
 263                 break;
 264
 265             case FAPI_PRACH_ROOT_SEQUENCE_INDEX_TAG:
 266                 p_ia_config_req->nPrachRootSeqIdx =
 267                     GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length);
 268                 break;
 269
 270             case FAPI_K1_TAG:
 271                 p_ia_config_req->nPrachFreqStart =
 272                     GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length);
 273                 break;
 274
 275             case FAPI_PRACH_ZERO_CORR_CONF_TAG:
 276                 p_ia_config_req->nPrachZeroCorrConf =
 277                     GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length);
 278                 break;
 279
 280             case FAPI_SSB_PER_RACH_TAG:
 281                 p_ia_config_req->nPrachSsbRach =
 282                     GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length);
 283                 break;
 284             /***** SSB Table *****/
 285             case FAPI_SSB_OFFSET_POINT_A_TAG:
 286                 p_ia_config_req->nSSBPrbOffset =
 287                     GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length) / (pow(2,
 288                         p_ia_config_req->nSubcCommon));
 289                 break;
 290
 291             case FAPI_SSB_PERIOD_TAG:
 292                 p_ia_config_req->nSSBPeriod =
 293                     GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length);
 294                 break;
 295
 296             case FAPI_SSB_SUBCARRIER_OFFSET_TAG:
 297                 p_ia_config_req->nSSBSubcOffset =
 298                     (tlvs[i].value >> tlvs[i++].tl.length);
 299                 break;
 300
 301             case FAPI_MIB_TAG:
 302                 mib = tlvs[i++].value;
 303                 p_ia_config_req->nMIB[0] = (uint8_t) (mib >> 24);
 304                 p_ia_config_req->nMIB[1] = (uint8_t) (mib >> 16);
 305                 p_ia_config_req->nMIB[2] = (uint8_t) (mib >> 8);
 306                 break;
 307
 308             case FAPI_DMRS_TYPE_A_POS_TAG:
 309                 p_ia_config_req->nDMRSTypeAPos =
 310                     GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length);
 311                 break;
 312
 313             case FAPI_SSB_MASK_TAG:
 314                 if (n_ssb_mask_idx < 2) {
 315                     p_ia_config_req->nSSBMask[n_ssb_mask_idx++] =
 316                         tlvs[i++].value;
 317                 }
 318                 break;
 319
 320             case FAPI_BEAM_ID_TAG:
 321                 if (n_beamid_idx < MAX_NUM_ANT) {
 322                     p_ia_config_req->nBeamId[n_beamid_idx++] =
 323                         GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length);
 324                 }
 325                 break;
 326
 327                 /* FAPI_SS_PBCH_MULTIPLE_CARRIERS_IN_A_BAND_TAG - NA */
 328                 /* FAPI_MULTIPLE_CELLS_SS_PBCH_IN_A_CARRIER_TAG - NA */
 329
 330             /***** TDD Table *****/
 331             case FAPI_TDD_PERIOD_TAG:
 332                 p_ia_config_req->nTddPeriod =
 333                     nr5g_fapi_calc_phy_tdd_period((uint8_t)
 334                     GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length),
 335                     p_ia_config_req->nSubcCommon);
 336                 break;
 337
 338             case FAPI_SLOT_CONFIG_TAG:
 339                 for (j = 0; j < p_ia_config_req->nTddPeriod; j++) {
 340                     p_sslot_Config = &p_ia_config_req->sSlotConfig[j];
 341                     for (k = 0; k < MAX_NUM_OF_SYMBOL_PER_SLOT; k++) {
 342                         p_sslot_Config->nSymbolType[k] =
 343                             GETVLFRM32B(tlvs[i].value, tlvs[i++].tl.length);
 344                     }
 345                 }
 346                 break;
 347
 348             /***** Measurement Config *****/
 349                 /* FAPI_RSSI_MEASUREMENT_TAG - NA */
 350
 351             /***** Beamforming Table *****/
 352
 353             /***** Precoding Table *****/
 354             default:
 355                 {
 356                     NR5G_FAPI_LOG(ERROR_LOG, ("[CONFIG.request] Unsupported "
 357                             "TLV tag : 0x%x", tlvs[i].tl.tag));
 358                 }
 359                 break;
 360         }
 361     }
 362     nr5g_fapi_config_req_fill_dependent_fields(p_ia_config_req);
 363     return SUCCESS;
 364 }
 365
 366  /** @ingroup group_source_api_p5_fapi2phy_proc
 367  *
 368  *  @param[in,out]  p_ia_config_req Pointer to IAPI CONFIG.request structure.
 369  *
 370  *  @return     Returns ::SUCCESS and ::FAILURE.
 371  *
 372  *  @description
 373  *  This function converts IAPI Config.request structure fields that depend on
 374  *  others. The order ofLV 5G FAPI 222.10.02 - 3.3.2.1
 375  *
 376 **/
 377 uint8_t nr5g_fapi_config_req_fill_dependent_fields(
 378     PCONFIGREQUESTStruct p_ia_config_req)
 379 {
 380     if (0 == p_ia_config_req->nFrameDuplexType) { // FDD
 381         p_ia_config_req->nTddPeriod = 0;
 382     }
 383
 384     return SUCCESS;
 385 }
 386
 387  /** @ingroup group_source_api_p5_fapi2phy_proc
 388  *
 389  *  @param[in]  fapi_tdd_period DL UL Transmission Periodicity.
 390  *  @param[in]  n_subc_common subcarrierSpacing for common.
 391  *
 392  *  @return     IAPI *nTddPeriod*.
 393  *
 394  *  @description
 395  *  This function converts FAPI *TddPeriod* to IAPI *nTddPeriod*
 396  *  structure.
 397  *
 398 **/
 399 uint8_t nr5g_fapi_calc_phy_tdd_period(
 400     uint8_t fapi_tdd_period,
 401     uint8_t n_subc_common)
 402 {
 403     switch (n_subc_common) {
 404         case 0:
 405             return
 406                 nr5g_fapi_calc_phy_tdd_period_for_n_subc_common_0
 407                 (fapi_tdd_period);
 408         case 1:
 409             return
 410                 nr5g_fapi_calc_phy_tdd_period_for_n_subc_common_1
 411                 (fapi_tdd_period);
 412         case 2:
 413             return
 414                 nr5g_fapi_calc_phy_tdd_period_for_n_subc_common_2
 415                 (fapi_tdd_period);
 416         case 3:
 417             return
 418                 nr5g_fapi_calc_phy_tdd_period_for_n_subc_common_3
 419                 (fapi_tdd_period);
 420         default:
 421             break;
 422     }
 423
 424     return 0;
 425 }
 426
 427  /** @ingroup group_source_api_p5_fapi2phy_proc
 428  *
 429  *  @param[in]  fapi_tdd_period DL UL Transmission Periodicity.
 430  *
 431  *  @return     IAPI *nTddPeriod*.
 432  *
 433  *  @description
 434  *  This function converts FAPI *TddPeriod* to IAPI *nTddPeriod*
 435  *  structure based on *subCarrierSpacingCommon - 0*.
 436  *
 437 **/
 438 uint8_t nr5g_fapi_calc_phy_tdd_period_for_n_subc_common_0(
 439     uint8_t fapi_tdd_period)
 440 {
 441     if (2 == fapi_tdd_period)
 442         return 1;
 443     else if (4 == fapi_tdd_period)
 444         return 2;
 445     else if (6 == fapi_tdd_period)
 446         return 5;
 447     else if (7 == fapi_tdd_period)
 448         return 10;
 449     else
 450         return 0;
 451
 452     return 0;
 453 }
 454
 455  /** @ingroup group_source_api_p5_fapi2phy_proc
 456  *
 457  *  @param[in]  fapi_tdd_period DL UL Transmission Periodicity.
 458  *
 459  *  @return     IAPI *nTddPeriod*.
 460  *
 461  *  @description
 462  *  This function converts FAPI *TddPeriod* to IAPI *nTddPeriod*
 463  *  structure based on *subCarrierSpacingCommon - 1*.
 464  *
 465 **/
 466 uint8_t nr5g_fapi_calc_phy_tdd_period_for_n_subc_common_1(
 467     uint8_t fapi_tdd_period)
 468 {
 469     if (0 == fapi_tdd_period)
 470         return 1;
 471     else if (2 == fapi_tdd_period)
 472         return 2;
 473     else if (4 == fapi_tdd_period)
 474         return 4;
 475     else if (5 == fapi_tdd_period)
 476         return 5;
 477     else if (6 == fapi_tdd_period)
 478         return 10;
 479     else if (7 == fapi_tdd_period)
 480         return 20;
 481     else
 482         return 0;
 483
 484     return 0;
 485 }
 486
 487  /** @ingroup group_source_api_p5_fapi2phy_proc
 488  *
 489  *  @param[in]  fapi_tdd_period DL UL Transmission Periodicity.
 490  *
 491  *  @return     IAPI *nTddPeriod*.
 492  *
 493  *  @description
 494  *  This function converts FAPI *TddPeriod* to IAPI *nTddPeriod*
 495  *  structure based on *subCarrierSpacingCommon - 2*.
 496  *
 497 **/
 498 uint8_t nr5g_fapi_calc_phy_tdd_period_for_n_subc_common_2(
 499     uint8_t fapi_tdd_period)
 500 {
 501     if (0 == fapi_tdd_period)
 502         return 2;
 503     else if (2 == fapi_tdd_period)
 504         return 4;
 505     else if (3 == fapi_tdd_period)
 506         return 5;
 507     else if (4 == fapi_tdd_period)
 508         return 8;
 509     else if (5 == fapi_tdd_period)
 510         return 10;
 511     else if (6 == fapi_tdd_period)
 512         return 20;
 513     else if (7 == fapi_tdd_period)
 514         return 40;
 515     else
 516         return 0;
 517
 518     return 0;
 519 }
 520
 521  /** @ingroup group_source_api_p5_fapi2phy_proc
 522  *
 523  *  @param[in]  fapi_tdd_period DL UL Transmission Periodicity.
 524  *
 525  *  @return     IAPI *nTddPeriod*.
 526  *
 527  *  @description
 528  *  This function converts FAPI *TddPeriod* to IAPI *nTddPeriod*
 529  *  structure based on *subCarrierSpacingCommon - 3*.
 530  *
 531 **/
 532 uint8_t nr5g_fapi_calc_phy_tdd_period_for_n_subc_common_3(
 533     uint8_t fapi_tdd_period)
 534 {
 535     if (0 == fapi_tdd_period)
 536         return 4;
 537     else if (1 == fapi_tdd_period)
 538         return 5;
 539     else if (2 == fapi_tdd_period)
 540         return 8;
 541     else if (3 == fapi_tdd_period)
 542         return 10;
 543     else if (4 == fapi_tdd_period)
 544         return 16;
 545     else if (5 == fapi_tdd_period)
 546         return 20;
 547     else if (6 == fapi_tdd_period)
 548         return 40;
 549     else if (7 == fapi_tdd_period)
 550         return 80;
 551     else
 552         return 0;
 553
 554     return 0;
 555 }
 556
 557  /** @ingroup group_source_api_p5_fapi2phy_proc
 558  *
 559  *  @param[in]  nSubcCommon  Sub carrier spacing
 560  *  @param[in]  nDLBandwidth/ nULBandwidth  Sub carrier spacing
 561  *
 562  *
 563  *  @return     IAPI FFT size for DL UL
 564  *
 565  *  @description
 566  *  This function converts FAPI *TddPeriod* to IAPI *nTddPeriod*
 567  *  structure based on *subCarrierSpacingCommon - 3*.
 568  *
 569 **/
 570 uint16_t nr5g_fapi_calc_fft_size(
 571     uint8_t sub_carrier_common,
 572     uint16_t bw)
 573 {
 574     if (FAPI_SUBCARRIER_SPACING_15 == sub_carrier_common) {
 575         if (FAPI_BANDWIDTH_5_MHZ == bw)
 576             return FAPI_FFT_SIZE_512;
 577         else if (FAPI_BANDWIDTH_10_MHZ == bw)
 578             return FAPI_FFT_SIZE_1024;
 579         else if ((FAPI_BANDWIDTH_15_MHZ == bw) || (FAPI_BANDWIDTH_20_MHZ == bw))
 580             return FAPI_FFT_SIZE_2048;
 581         else if ((FAPI_BANDWIDTH_25_MHZ == bw) || (FAPI_BANDWIDTH_30_MHZ == bw)
 582             || (FAPI_BANDWIDTH_40_MHZ == bw) || (FAPI_BANDWIDTH_50_MHZ == bw))
 583             return FAPI_FFT_SIZE_4096;
 584     } else if (FAPI_SUBCARRIER_SPACING_30 == sub_carrier_common) {
 585         if ((FAPI_BANDWIDTH_5_MHZ == bw) || (FAPI_BANDWIDTH_10_MHZ == bw))
 586             return FAPI_FFT_SIZE_512;
 587         else if ((FAPI_BANDWIDTH_15_MHZ == bw) || (FAPI_BANDWIDTH_20_MHZ == bw))
 588             return FAPI_FFT_SIZE_1024;
 589         else if ((FAPI_BANDWIDTH_25_MHZ == bw) || (FAPI_BANDWIDTH_30_MHZ == bw)
 590             || (FAPI_BANDWIDTH_40_MHZ == bw) || (FAPI_BANDWIDTH_50_MHZ == bw))
 591             return FAPI_FFT_SIZE_2048;
 592         else if ((FAPI_BANDWIDTH_60_MHZ == bw) || (FAPI_BANDWIDTH_70_MHZ == bw)
 593             || (FAPI_BANDWIDTH_80_MHZ == bw) || ((FAPI_BANDWIDTH_90_MHZ == bw))
 594             || (FAPI_BANDWIDTH_100_MHZ == bw))
 595             return FAPI_FFT_SIZE_4096;
 596     } else if (FAPI_SUBCARRIER_SPACING_60 == sub_carrier_common) {
 597         if ((FAPI_BANDWIDTH_10_MHZ == bw) || (FAPI_BANDWIDTH_15_MHZ == bw) ||
 598             (FAPI_BANDWIDTH_20_MHZ == bw) || (FAPI_BANDWIDTH_25_MHZ == bw))
 599             return FAPI_FFT_SIZE_512;
 600         else if ((FAPI_BANDWIDTH_30_MHZ == bw) || (FAPI_BANDWIDTH_40_MHZ == bw)
 601             || (FAPI_BANDWIDTH_50_MHZ == bw))
 602             return FAPI_FFT_SIZE_1024;
 603         else if ((FAPI_BANDWIDTH_60_MHZ == bw) || (FAPI_BANDWIDTH_70_MHZ == bw)
 604             || (FAPI_BANDWIDTH_80_MHZ == bw) || (FAPI_BANDWIDTH_90_MHZ == bw) ||
 605             (FAPI_BANDWIDTH_100_MHZ == bw))
 606             return FAPI_FFT_SIZE_2048;
 607         else if (FAPI_BANDWIDTH_200_MHZ == bw)
 608             return FAPI_FFT_SIZE_4096;
 609     } else if (FAPI_SUBCARRIER_SPACING_120 == sub_carrier_common) {
 610         if (FAPI_BANDWIDTH_50_MHZ == bw)
 611             return FAPI_FFT_SIZE_512;
 612         else if (FAPI_BANDWIDTH_100_MHZ == bw)
 613             return FAPI_FFT_SIZE_1024;
 614         else if (FAPI_BANDWIDTH_200_MHZ == bw)
 615             return FAPI_FFT_SIZE_2048;
 616         else if (FAPI_BANDWIDTH_400_MHZ == bw)
 617             return FAPI_FFT_SIZE_4096;
 618     } else {
 619     }
 620
 621     return 0;
 622 }