136 lines
4.5 KiB
C
136 lines
4.5 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 main_ue_nr.c
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* \brief top init of Layer 2
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* \author R. Knopp, K.H. HSU
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* \date 2018
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* \version 0.1
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* \company Eurecom / NTUST
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* \email: knopp@eurecom.fr, kai-hsiang.hsu@eurecom.fr
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* \note
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* \warning
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*/
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//#include "defs.h"
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#include "mac_proto.h"
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#include "radio/COMMON/common_lib.h"
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//#undef MALLOC
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#include "assertions.h"
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#include "executables/softmodem-common.h"
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#include "nr_rlc/nr_rlc_oai_api.h"
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#include "RRC/NR_UE/rrc_proto.h"
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#include <pthread.h>
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static NR_UE_MAC_INST_t *nr_ue_mac_inst;
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void send_srb0_rrc(int rnti, const uint8_t *sdu, sdu_size_t sdu_len, void *data)
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{
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AssertFatal(sdu_len > 0 && sdu_len < CCCH_SDU_SIZE, "invalid CCCH SDU size %d\n", sdu_len);
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MessageDef *message_p = itti_alloc_new_message(TASK_MAC_UE, 0, NR_RRC_MAC_CCCH_DATA_IND);
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memset(NR_RRC_MAC_CCCH_DATA_IND(message_p).sdu, 0, sdu_len);
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memcpy(NR_RRC_MAC_CCCH_DATA_IND(message_p).sdu, sdu, sdu_len);
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NR_RRC_MAC_CCCH_DATA_IND(message_p).sdu_size = sdu_len;
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NR_RRC_MAC_CCCH_DATA_IND(message_p).rnti = rnti;
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itti_send_msg_to_task(TASK_RRC_NRUE, 0, message_p);
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}
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void send_msg3_rrc_request(module_id_t mod_id, int rnti)
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{
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nr_rlc_activate_srb0(rnti, NULL, send_srb0_rrc);
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nr_mac_rrc_msg3_ind(mod_id, rnti);
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}
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NR_UE_MAC_INST_t * nr_l2_init_ue()
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{
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LOG_I(NR_MAC, "MAIN: init UE MAC functions \n");
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//init mac here
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nr_ue_mac_inst = (NR_UE_MAC_INST_t *)calloc(NB_NR_UE_MAC_INST, sizeof(NR_UE_MAC_INST_t));
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for (int j = 0; j < NB_NR_UE_MAC_INST; j++)
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nr_ue_init_mac(j);
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if (get_softmodem_params()->sa)
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ue_init_config_request(nr_ue_mac_inst, get_softmodem_params()->numerology);
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int rc = rlc_module_init(0);
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AssertFatal(rc == 0, "%s: Could not initialize RLC layer\n", __FUNCTION__);
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return (nr_ue_mac_inst);
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}
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NR_UE_MAC_INST_t *get_mac_inst(module_id_t module_id)
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{
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return &nr_ue_mac_inst[(int)module_id];
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}
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void reset_mac_inst(NR_UE_MAC_INST_t *nr_mac)
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{
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// MAC reset according to 38.321 Section 5.12
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nr_ue_mac_default_configs(nr_mac);
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// initialize Bj for each logical channel to zero
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// Done in default config but to -1 (is that correct?)
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// stop all running timers
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// TODO
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// consider all timeAlignmentTimers as expired and perform the corresponding actions in clause 5.2
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// TODO
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// set the NDIs for all uplink HARQ processes to the value 0
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for (int k = 0; k < NR_MAX_HARQ_PROCESSES; k++)
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nr_mac->UL_ndi[k] = -1; // initialize to invalid value
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// stop any ongoing RACH procedure
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if (nr_mac->ra.ra_state < RA_SUCCEEDED)
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nr_mac->ra.ra_state = RA_UE_IDLE;
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// discard explicitly signalled contention-free Random Access Resources
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// TODO not sure what needs to be done here
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// flush Msg3 buffer
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// TODO we don't have a Msg3 buffer
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// cancel any triggered Scheduling Request procedure
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// Done in default config
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// cancel any triggered Buffer Status Reporting procedure
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// Done in default config
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// cancel any triggered Power Headroom Reporting procedure
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// TODO PHR not implemented yet
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// flush the soft buffers for all DL HARQ processes
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for (int k = 0; k < NR_MAX_HARQ_PROCESSES; k++)
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memset(&nr_mac->dl_harq_info[k], 0, sizeof(NR_UE_HARQ_STATUS_t));
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// for each DL HARQ process, consider the next received transmission for a TB as the very first transmission
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// TODO there is nothing in the MAC indicating first transmission
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// release, if any, Temporary C-RNTI
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nr_mac->ra.t_crnti = 0;
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// reset BFI_COUNTER
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// TODO beam failure procedure not implemented
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}
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