121 lines
4.3 KiB
C
121 lines
4.3 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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/*! \file l2_nr_interface.c
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* \brief layer 2 interface, used to support different RRC sublayer
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* \author Raymond Knopp and Navid Nikaein, WEI-TAI CHEN
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* \date 2010-2014, 2018
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* \version 1.0
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* \company Eurecom, NTUST
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* \email: raymond.knopp@eurecom.fr, kroempa@gmail.com
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*/
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#include "platform_types.h"
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#include "nr_rrc_defs.h"
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#include "nr_rrc_extern.h"
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#include "common/utils/LOG/log.h"
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#include "common/ran_context.h"
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#include "LAYER2/NR_MAC_COMMON/nr_mac_common.h"
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#include "LAYER2/NR_MAC_COMMON/nr_mac_extern.h"
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#include "LAYER2/NR_MAC_gNB/nr_mac_gNB.h"
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#include "LAYER2/NR_MAC_gNB/mac_proto.h"
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#include "LAYER2/nr_rlc/nr_rlc_oai_api.h"
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#include "intertask_interface.h"
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#include "NR_MIB.h"
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#include "NR_BCCH-BCH-Message.h"
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#include "rrc_gNB_UE_context.h"
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#include <openair2/RRC/NR/MESSAGES/asn1_msg.h>
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#include "nr_pdcp/nr_pdcp_oai_api.h"
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extern RAN_CONTEXT_t RC;
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void nr_rrc_mac_remove_ue(rnti_t rntiMaybeUEid)
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{
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nr_rlc_remove_ue(rntiMaybeUEid);
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gNB_MAC_INST *nrmac = RC.nrmac[0];
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NR_SCHED_LOCK(&nrmac->sched_lock);
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mac_remove_nr_ue(nrmac, rntiMaybeUEid);
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NR_SCHED_UNLOCK(&nrmac->sched_lock);
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}
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void nr_rrc_mac_update_cellgroup(rnti_t rntiMaybeUEid, NR_CellGroupConfig_t *cgc)
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{
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gNB_MAC_INST *nrmac = RC.nrmac[0];
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NR_SCHED_LOCK(&nrmac->sched_lock);
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nr_mac_update_cellgroup(nrmac, rntiMaybeUEid, cgc);
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NR_SCHED_UNLOCK(&nrmac->sched_lock);
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}
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uint16_t mac_rrc_nr_data_req(const module_id_t Mod_idP,
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const int CC_id,
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const frame_t frameP,
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const rb_id_t Srb_id,
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const rnti_t rnti,
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const uint8_t Nb_tb,
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uint8_t *const buffer_pP)
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{
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LOG_D(RRC,"[eNB %d] mac_rrc_data_req to SRB ID=%ld\n",Mod_idP,Srb_id);
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// MIBCH
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if ((Srb_id & RAB_OFFSET) == MIBCH) {
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int encode_size = 3;
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rrc_gNB_carrier_data_t *carrier = &RC.nrrrc[Mod_idP]->carrier;
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int encoded = encode_MIB_NR(carrier->mib, frameP, buffer_pP, encode_size);
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DevAssert(encoded == encode_size);
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LOG_D(NR_RRC, "MIB PDU buffer_pP[0]=%x , buffer_pP[1]=%x, buffer_pP[2]=%x\n", buffer_pP[0], buffer_pP[1],
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buffer_pP[2]);
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return encode_size;
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}
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if ((Srb_id & RAB_OFFSET) == BCCH) {
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memcpy(&buffer_pP[0], RC.nrrrc[Mod_idP]->carrier.SIB1, RC.nrrrc[Mod_idP]->carrier.sizeof_SIB1);
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return RC.nrrrc[Mod_idP]->carrier.sizeof_SIB1;
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}
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// CCCH
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if ((Srb_id & RAB_OFFSET) == CCCH) {
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AssertFatal(0, "CCCH is managed by rlc of srb 0, not anymore by mac_rrc_nr_data_req\n");
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}
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return 0;
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}
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int8_t nr_mac_rrc_bwp_switch_req(const module_id_t module_idP,
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const frame_t frameP,
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const sub_frame_t sub_frameP,
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const rnti_t rntiP,
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const int dl_bwp_id,
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const int ul_bwp_id) {
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rrc_gNB_ue_context_t *ue_context_p = rrc_gNB_get_ue_context_by_rnti(RC.nrrrc[module_idP], rntiP);
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protocol_ctxt_t ctxt;
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PROTOCOL_CTXT_SET_BY_MODULE_ID(&ctxt, module_idP, GNB_FLAG_YES, rntiP, frameP, sub_frameP, 0);
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nr_rrc_reconfiguration_req(ue_context_p, &ctxt, dl_bwp_id, ul_bwp_id);
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return 0;
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}
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