161 lines
6.0 KiB
C
161 lines
6.0 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_interface_ue.c
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* \brief layer 2 interface, used to support different RRC sublayer
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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 "rrc_defs.h"
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#include "rrc_proto.h"
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#include "assertions.h"
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#include "rrc_vars.h"
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#include "MAC/mac.h"
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typedef uint32_t channel_t;
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int8_t
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nr_mac_rrc_data_ind_ue(
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const module_id_t module_id,
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const int CC_id,
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const uint8_t gNB_index,
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const frame_t frame,
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const sub_frame_t sub_frame,
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const rnti_t rnti,
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const channel_t channel,
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const uint8_t* pduP,
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const sdu_size_t pdu_len){
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sdu_size_t sdu_size = 0;
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switch(channel){
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case NR_BCCH_BCH:
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AssertFatal( nr_rrc_ue_decode_NR_BCCH_BCH_Message(module_id, gNB_index, (uint8_t*)pduP, pdu_len) == 0, "UE decode BCCH-BCH error!\n");
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break;
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case NR_BCCH_DL_SCH:
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if (pdu_len>0) {
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LOG_T(NR_RRC, "[UE %d] Received SDU for NR-BCCH-DL-SCH on SRB %u from gNB %d\n", module_id, channel & RAB_OFFSET,
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gNB_index);
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MessageDef *message_p;
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int msg_sdu_size = BCCH_SDU_SIZE;
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if (pdu_len > msg_sdu_size) {
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LOG_E(NR_RRC, "SDU larger than NR-BCCH-DL-SCH SDU buffer size (%d, %d)", sdu_size, msg_sdu_size);
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sdu_size = msg_sdu_size;
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} else {
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sdu_size = pdu_len;
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}
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message_p = itti_alloc_new_message(TASK_MAC_UE, 0, NR_RRC_MAC_BCCH_DATA_IND);
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memset(NR_RRC_MAC_BCCH_DATA_IND (message_p).sdu, 0, BCCH_SDU_SIZE);
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memcpy(NR_RRC_MAC_BCCH_DATA_IND (message_p).sdu, pduP, sdu_size);
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NR_RRC_MAC_BCCH_DATA_IND (message_p).frame = frame; //frameP
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NR_RRC_MAC_BCCH_DATA_IND (message_p).sub_frame = sub_frame; //sub_frameP
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NR_RRC_MAC_BCCH_DATA_IND (message_p).sdu_size = sdu_size;
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NR_RRC_MAC_BCCH_DATA_IND (message_p).gnb_index = gNB_index;
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itti_send_msg_to_task(TASK_RRC_NRUE, GNB_MODULE_ID_TO_INSTANCE(module_id), message_p);
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}
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break;
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case CCCH:
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if (pdu_len>0) {
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LOG_T(NR_RRC,"[UE %d] Received SDU for CCCH on SRB %u from gNB %d\n",module_id,channel & RAB_OFFSET,gNB_index);
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MessageDef *message_p;
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int msg_sdu_size = CCCH_SDU_SIZE;
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if (pdu_len > msg_sdu_size) {
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LOG_E(NR_RRC, "SDU larger than CCCH SDU buffer size (%d, %d)", sdu_size, msg_sdu_size);
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sdu_size = msg_sdu_size;
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} else {
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sdu_size = pdu_len;
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}
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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, CCCH_SDU_SIZE);
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memcpy (NR_RRC_MAC_CCCH_DATA_IND (message_p).sdu, pduP, sdu_size);
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NR_RRC_MAC_CCCH_DATA_IND (message_p).frame = frame; //frameP
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NR_RRC_MAC_CCCH_DATA_IND (message_p).sub_frame = sub_frame; //sub_frameP
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NR_RRC_MAC_CCCH_DATA_IND (message_p).sdu_size = sdu_size;
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NR_RRC_MAC_CCCH_DATA_IND (message_p).gnb_index = gNB_index;
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NR_RRC_MAC_CCCH_DATA_IND (message_p).rnti = rnti; //rntiP
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itti_send_msg_to_task (TASK_RRC_NRUE, GNB_MODULE_ID_TO_INSTANCE( module_id ), message_p);
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}
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break;
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default:
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break;
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}
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return(0);
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}
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int8_t nr_mac_rrc_data_req_ue(const module_id_t Mod_idP,
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const int CC_id,
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const uint8_t gNB_id,
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const frame_t frameP,
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const rb_id_t Srb_id,
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uint8_t *buffer_pP){
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switch(Srb_id){
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case CCCH:
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// TODO: Enable timer T300
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//NR_UE_rrc_inst[Mod_idP].Info[gNB_id].T300_active = 1;
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//NR_UE_rrc_inst[Mod_idP].Info[gNB_id].T300_cnt = 0;
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LOG_D(NR_RRC, "nr_mac_rrc_data_req_ue: Payload size = %i\n", NR_UE_rrc_inst[Mod_idP].Srb0[gNB_id].Tx_buffer.payload_size);
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memcpy(buffer_pP, (uint8_t*)NR_UE_rrc_inst[Mod_idP].Srb0[gNB_id].Tx_buffer.Payload, NR_UE_rrc_inst[Mod_idP].Srb0[gNB_id].Tx_buffer.payload_size);
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for(int i = 0; i<NR_UE_rrc_inst[Mod_idP].Srb0[gNB_id].Tx_buffer.payload_size; i++) {
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LOG_D(NR_RRC,"(%i): %i\n", i, buffer_pP[i]);
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}
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return NR_UE_rrc_inst[Mod_idP].Srb0[gNB_id].Tx_buffer.payload_size;
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case DCCH:
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AssertFatal(1==0, "SRB1 not implemented yet!\n");
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case DCCH1:
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AssertFatal(1==0, "SRB2 not implemented yet!\n");
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default:
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AssertFatal(1==0, "Invalid SRB id!\n");
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}
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return 0;
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}
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int8_t nr_rrc_RA_succeeded(const module_id_t mod_id, const uint8_t gNB_index)
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{
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if (NR_UE_rrc_inst[mod_id].Info[gNB_index].T304_active == 1) {
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LOG_W(NR_RRC, "T304 was stoped with value %i\n", NR_UE_rrc_inst[mod_id].Info[gNB_index].T304_cnt);
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NR_UE_rrc_inst[mod_id].Info[gNB_index].T304_active = 0;
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NR_UE_rrc_inst[mod_id].Info[gNB_index].T304_cnt = 0;
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}
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return 0;
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}
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