/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (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.openairinterface.org/?page_id=698
*
* 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
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*-------------------------------------------------------------------------------
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*/
/*! \file fapi_nr_l1.c
* \brief functions for FAPI L1 interface
* \author R. Knopp, WEI-TAI CHEN
* \date 2017, 2018
* \version 0.1
* \company Eurecom, NTUST
* \email: knopp@eurecom.fr, kroempa@gmail.com
* \note
* \warning
*/
#include "fapi_nr_l1.h"
#include "PHY/NR_TRANSPORT/nr_transport_proto.h"
#include "PHY/NR_TRANSPORT/nr_dlsch.h"
#include "PHY/NR_TRANSPORT/nr_dci.h"
extern uint8_t nfapi_mode;
void handle_nr_nfapi_ssb_pdu(PHY_VARS_gNB *gNB,int frame,int slot,
nfapi_nr_dl_tti_request_pdu_t *dl_tti_pdu)
{
AssertFatal(dl_tti_pdu->ssb_pdu.ssb_pdu_rel15.bchPayloadFlag== 1, "bchPayloadFlat %d != 1\n",
dl_tti_pdu->ssb_pdu.ssb_pdu_rel15.bchPayloadFlag);
LOG_I(PHY,"%d.%d : pbch_pdu: %x\n",frame,slot,dl_tti_pdu->ssb_pdu.ssb_pdu_rel15.bchPayload);
gNB->ssb_pdu = &dl_tti_pdu->ssb_pdu;
}
/*void handle_nr_nfapi_pdsch_pdu(PHY_VARS_gNB *gNB,int frame,int subframe,gNB_L1_rxtx_proc_t *proc,
uint8_t codeword_index,
uint8_t *sdu)
{
int UE_id = 0; //Hardcode UE_id for now
int harq_pid;
NR_gNB_DLSCH_t *dlsch0=NULL, *dlsch1=NULL;
NR_DL_gNB_HARQ_t *dlsch0_harq=NULL,*dlsch1_harq=NULL;
// Based on nr_fill_dci_and_dlsch only gNB->dlsch[0][0] gets filled now. So maybe we do not need dlsch1.
dlsch0 = gNB->dlsch[UE_id][0];
dlsch1 = gNB->dlsch[UE_id][1];
harq_pid = dlsch0->harq_ids[subframe];
dlsch0_harq = dlsch0->harq_processes[harq_pid];
dlsch1_harq = dlsch1->harq_processes[harq_pid];
//if (dlsch0_harq->round==0) { //get pointer to SDU if this a new SDU
if(sdu == NULL) {
LOG_E(PHY,"NFAPI: SFN/SF:%04d%d proc:TX:[frame %d subframe %d]: programming dlsch for round 0 \n",
frame,subframe,
proc->frame_tx,proc->slot_tx);
return;
}
//AssertFatal(sdu!=NULL,"NFAPI: SFN/SF:%04d%d proc:TX:[frame %d subframe %d]: programming dlsch for round 0, rnti %x, UE_id %d, harq_pid %d : sdu is null for pdu_index %d dlsch0_harq[round:%d SFN/SF:%d%d pdu:%p mcs:%d ndi:%d pdschstart:%d]\n",
// frame,subframe,
// proc->frame_tx,proc->subframe_tx,rel8->rnti,UE_id,harq_pid,
// dl_tti_pdu->pdsch_pdu.pdsch_pdu_rel8.pdu_index,dlsch0_harq->round,dlsch0_harq->frame,dlsch0_harq->subframe,dlsch0_harq->pdu,dlsch0_harq->mcs,dlsch0_harq->ndi,dlsch0_harq->pdsch_start);
if (codeword_index == 0) dlsch0_harq->pdu = sdu;
else dlsch1_harq->pdu = sdu;
LOG_I(PHY, "SFN/SF: %d/%d DLSCH PDU filled \n",frame, subframe);
// }
}*/
void handle_nfapi_nr_pdcch_pdu(PHY_VARS_gNB *gNB,
int frame, int slot,
nfapi_nr_dl_tti_pdcch_pdu *pdcch_pdu) {
LOG_D(PHY,"Frame %d, Slot %d: DCI processing - proc:slot_tx:%d pdcch_pdu_rel15->numDlDci:%d\n",frame,slot, slot, pdcch_pdu->pdcch_pdu_rel15.numDlDci);
// copy dci configuration into gNB structure
gNB->pdcch_pdu = pdcch_pdu;
nr_fill_dci(gNB,frame,slot);
}
void handle_nfapi_nr_ul_dci_pdu(PHY_VARS_gNB *gNB,
int frame, int slot,
nfapi_nr_ul_dci_request_pdus_t *ul_dci_request_pdu) {
LOG_D(PHY,"Frame %d, Slot %d: UL DCI processing - proc:slot_tx:%d pdcch_pdu_rel15->numDlDci:%d\n",frame,slot, slot, ul_dci_request_pdu->pdcch_pdu.pdcch_pdu_rel15.numDlDci);
// copy dci configuration into gNB structure
gNB->ul_dci_pdu = ul_dci_request_pdu;
nr_fill_ul_dci(gNB,frame,slot);
}
void handle_nr_nfapi_pdsch_pdu(PHY_VARS_gNB *gNB,int frame,int slot,
nfapi_nr_dl_tti_pdsch_pdu *pdsch_pdu,
uint8_t *sdu)
{
nr_fill_dlsch(gNB,frame,slot,pdsch_pdu,sdu);
}
void nr_schedule_response(NR_Sched_Rsp_t *Sched_INFO){
PHY_VARS_gNB *gNB;
// copy data from L2 interface into L1 structures
module_id_t Mod_id = Sched_INFO->module_id;
uint8_t CC_id = Sched_INFO->CC_id;
nfapi_nr_dl_tti_request_t *DL_req = Sched_INFO->DL_req;
nfapi_nr_tx_data_request_t *TX_req = Sched_INFO->TX_req;
nfapi_nr_ul_tti_request_t *UL_tti_req = Sched_INFO->UL_tti_req;
nfapi_nr_ul_dci_request_t *UL_dci_req = Sched_INFO->UL_dci_req;
frame_t frame = Sched_INFO->frame;
sub_frame_t slot = Sched_INFO->slot;
AssertFatal(RC.gNB!=NULL,"RC.gNB is null\n");
AssertFatal(RC.gNB[Mod_id]!=NULL,"RC.gNB[%d] is null\n",Mod_id);
gNB = RC.gNB[Mod_id];
uint8_t number_dl_pdu = DL_req->dl_tti_request_body.nPDUs;
uint8_t number_ul_pdu = UL_tti_req->n_pdus;
uint8_t number_ul_dci_pdu = UL_dci_req->numPdus;
LOG_D(PHY,"NFAPI: Sched_INFO:SFN/SLOT:%04d%d DL_req:SFN/SLO:%04d%d:dl_pdu:%d tx_req:SFN/SLOT:%04d%d:pdus:%d \n",
frame,slot,
DL_req->SFN,DL_req->Slot,number_dl_pdu,
TX_req->SFN,TX_req->Slot,TX_req->Number_of_PDUs);
int do_oai =0;
int dont_send =0;
int pdcch_received=0;
gNB->num_pdsch_rnti=0;
gNB->pdcch_pdu = NULL;
gNB->pbch_configured=0;
for (int i=0;i<number_dl_pdu;i++) {
nfapi_nr_dl_tti_request_pdu_t *dl_tti_pdu = &DL_req->dl_tti_request_body.dl_tti_pdu_list[i];
LOG_D(PHY,"NFAPI: dl_pdu %d : type %d\n",i,dl_tti_pdu->PDUType);
switch (dl_tti_pdu->PDUType) {
case NFAPI_NR_DL_TTI_SSB_PDU_TYPE:
gNB->pbch_configured=1;
do_oai=1;
handle_nr_nfapi_ssb_pdu(gNB,frame,slot,
dl_tti_pdu);
break;
case NFAPI_NR_DL_TTI_PDCCH_PDU_TYPE:
AssertFatal(pdcch_received == 0, "pdcch_received is not 0, we can only handle one PDCCH PDU per slot\n");
handle_nfapi_nr_pdcch_pdu(gNB,
frame, slot,
&dl_tti_pdu->pdcch_pdu);
pdcch_received = 1;
do_oai=1;
break;
case NFAPI_NR_DL_TTI_PDSCH_PDU_TYPE:
{
nfapi_nr_dl_tti_pdsch_pdu_rel15_t *pdsch_pdu_rel15 = &dl_tti_pdu->pdsch_pdu.pdsch_pdu_rel15;
uint16_t pduIndex = pdsch_pdu_rel15->pduIndex;
uint16_t tx_pdus = TX_req->Number_of_PDUs;
AssertFatal(TX_req->pdu_list[pduIndex].num_TLV == 1, "TX_req->pdu_list[%d].num_TLV %d != 1\n",
pduIndex,TX_req->pdu_list[pduIndex].num_TLV);
uint8_t *sdu = TX_req->pdu_list[pduIndex].TLVs[0].value.direct;
handle_nr_nfapi_pdsch_pdu(gNB,frame,slot,&dl_tti_pdu->pdsch_pdu, sdu);
do_oai=1;
}
}
}
memcpy(&gNB->UL_tti_req,UL_tti_req,sizeof(nfapi_nr_ul_tti_request_t));
for (int i=0;i<number_ul_dci_pdu;i++) {
handle_nfapi_nr_ul_dci_pdu(gNB,
frame, slot,
&UL_dci_req->ul_dci_pdu_list[i]);
}
}