mirror of https://github.com/pvnis/srsRAN_4G.git
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
170 lines
6.2 KiB
C++
170 lines
6.2 KiB
C++
/*
|
|
* Copyright 2013-2019 Software Radio Systems Limited
|
|
*
|
|
* This file is part of srsLTE.
|
|
*
|
|
* srsLTE is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as
|
|
* published by the Free Software Foundation, either version 3 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* srsLTE is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* A copy of the GNU Affero General Public License can be found in
|
|
* the LICENSE file in the top-level directory of this distribution
|
|
* and at http://www.gnu.org/licenses/.
|
|
*
|
|
*/
|
|
|
|
#ifndef SRSENB_MAC_H
|
|
#define SRSENB_MAC_H
|
|
|
|
#include "scheduler.h"
|
|
#include "scheduler_metric.h"
|
|
#include "srslte/common/log.h"
|
|
#include "srslte/common/mac_pcap.h"
|
|
#include "srslte/common/threads.h"
|
|
#include "srslte/common/tti_sync_cv.h"
|
|
#include "srslte/interfaces/enb_interfaces.h"
|
|
#include "srslte/interfaces/enb_metrics_interface.h"
|
|
#include "srslte/interfaces/sched_interface.h"
|
|
#include "ue.h"
|
|
#include <vector>
|
|
|
|
namespace srsenb {
|
|
|
|
class mac final : public mac_interface_phy_lte, public mac_interface_rlc, public mac_interface_rrc
|
|
{
|
|
public:
|
|
mac();
|
|
~mac();
|
|
bool init(const mac_args_t& args_,
|
|
srslte_cell_t* cell,
|
|
phy_interface_stack_lte* phy,
|
|
rlc_interface_mac* rlc,
|
|
rrc_interface_mac* rrc,
|
|
stack_interface_mac_lte* stack_,
|
|
srslte::log* log_h);
|
|
void stop();
|
|
|
|
void start_pcap(srslte::mac_pcap* pcap_);
|
|
|
|
/******** Interface from PHY (PHY -> MAC) ****************/
|
|
int sr_detected(uint32_t tti, uint16_t rnti) final;
|
|
int rach_detected(uint32_t tti, uint32_t primary_cc_idx, uint32_t preamble_idx, uint32_t time_adv) final;
|
|
|
|
int ri_info(uint32_t tti, uint16_t rnti, uint32_t ri_value);
|
|
int pmi_info(uint32_t tti, uint16_t rnti, uint32_t pmi_value);
|
|
int cqi_info(uint32_t tti, uint16_t rnti, uint32_t cc_idx, uint32_t cqi_value) override;
|
|
int snr_info(uint32_t tti, uint16_t rnti, float snr);
|
|
int ack_info(uint32_t tti, uint16_t rnti, uint32_t cc_idx, uint32_t tb_idx, bool ack) override;
|
|
int crc_info(uint32_t tti, uint16_t rnti, uint32_t nof_bytes, bool crc_res);
|
|
|
|
int get_dl_sched(uint32_t tti, dl_sched_list_t& dl_sched_res);
|
|
int get_ul_sched(uint32_t tti, ul_sched_list_t& ul_sched_res);
|
|
int get_mch_sched(uint32_t tti, bool is_mcch, dl_sched_list_t& dl_sched_res);
|
|
void set_sched_dl_tti_mask(uint8_t* tti_mask, uint32_t nof_sfs) final
|
|
{
|
|
scheduler.set_dl_tti_mask(tti_mask, nof_sfs);
|
|
}
|
|
void build_mch_sched(uint32_t tbs);
|
|
void rl_failure(uint16_t rnti);
|
|
void rl_ok(uint16_t rnti);
|
|
|
|
/******** Interface from RRC (RRC -> MAC) ****************/
|
|
/* Provides cell configuration including SIB periodicity, etc. */
|
|
int cell_cfg(const std::vector<sched_interface::cell_cfg_t>& cell_cfg) override;
|
|
void reset() override;
|
|
|
|
/* Manages UE scheduling context */
|
|
int ue_cfg(uint16_t rnti, sched_interface::ue_cfg_t* cfg);
|
|
int ue_rem(uint16_t rnti);
|
|
|
|
// Indicates that the PHY config dedicated has been enabled or not
|
|
void phy_config_enabled(uint16_t rnti, bool enabled);
|
|
|
|
/* Manages UE bearers and associated configuration */
|
|
int bearer_ue_cfg(uint16_t rnti, uint32_t lc_id, sched_interface::ue_bearer_cfg_t* cfg);
|
|
int bearer_ue_rem(uint16_t rnti, uint32_t lc_id);
|
|
int rlc_buffer_state(uint16_t rnti, uint32_t lc_id, uint32_t tx_queue, uint32_t retx_queue);
|
|
|
|
bool process_pdus();
|
|
|
|
uint32_t get_current_tti();
|
|
void get_metrics(mac_metrics_t metrics[ENB_METRICS_MAX_USERS]);
|
|
void write_mcch(asn1::rrc::sib_type2_s* sib2, asn1::rrc::sib_type13_r9_s* sib13, asn1::rrc::mcch_msg_s* mcch);
|
|
|
|
private:
|
|
static const int MAX_LOCATIONS = 20;
|
|
static const uint32_t cfi = 3;
|
|
srslte_dci_location_t locations[MAX_LOCATIONS] = {};
|
|
|
|
static const int MAC_PDU_THREAD_PRIO = 60;
|
|
|
|
// We use a rwlock in MAC to allow multiple workers to access MAC simultaneously. No conflicts will happen since
|
|
// access for different TTIs
|
|
pthread_rwlock_t rwlock = {};
|
|
|
|
// Interaction with PHY
|
|
phy_interface_stack_lte* phy_h = nullptr;
|
|
rlc_interface_mac* rlc_h = nullptr;
|
|
rrc_interface_mac* rrc_h = nullptr;
|
|
stack_interface_mac_lte* stack = nullptr;
|
|
srslte::log* log_h = nullptr;
|
|
|
|
srslte_cell_t cell;
|
|
mac_args_t args = {};
|
|
|
|
bool started = false;
|
|
|
|
/* Scheduler unit */
|
|
sched scheduler;
|
|
std::vector<sched_interface::cell_cfg_t> cell_config;
|
|
|
|
sched_interface::dl_pdu_mch_t mch;
|
|
|
|
/* Map of active UEs */
|
|
std::map<uint16_t, ue*> ue_db;
|
|
uint16_t last_rnti;
|
|
|
|
uint8_t* assemble_rar(sched_interface::dl_sched_rar_grant_t* grants,
|
|
uint32_t nof_grants,
|
|
int rar_idx,
|
|
uint32_t pdu_len,
|
|
uint32_t tti);
|
|
uint8_t* assemble_si(uint32_t index);
|
|
|
|
const static int rar_payload_len = 128;
|
|
std::vector<srslte::rar_pdu> rar_pdu_msg;
|
|
srslte::byte_buffer_t rar_payload[sched_interface::MAX_RAR_LIST];
|
|
|
|
const static int NOF_BCCH_DLSCH_MSG = sched_interface::MAX_SIBS;
|
|
uint8_t bcch_dlsch_payload[sched_interface::MAX_SIB_PAYLOAD_LEN];
|
|
|
|
const static int pcch_payload_buffer_len = 1024;
|
|
uint8_t pcch_payload_buffer[pcch_payload_buffer_len];
|
|
srslte_softbuffer_tx_t bcch_softbuffer_tx[NOF_BCCH_DLSCH_MSG];
|
|
srslte_softbuffer_tx_t pcch_softbuffer_tx;
|
|
srslte_softbuffer_tx_t rar_softbuffer_tx;
|
|
|
|
const static int mcch_payload_len = 3000; // TODO FIND OUT MAX LENGTH
|
|
int current_mcch_length;
|
|
uint8_t mcch_payload_buffer[mcch_payload_len];
|
|
asn1::rrc::mcch_msg_s mcch;
|
|
asn1::rrc::sib_type2_s sib2;
|
|
asn1::rrc::sib_type13_r9_s sib13;
|
|
|
|
const static int mtch_payload_len = 10000;
|
|
uint8_t mtch_payload_buffer[mtch_payload_len];
|
|
|
|
// pointer to MAC PCAP object
|
|
srslte::mac_pcap* pcap = nullptr;
|
|
};
|
|
|
|
} // namespace srsenb
|
|
|
|
#endif // SRSENB_MAC_H
|