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.
231 lines
7.2 KiB
C++
231 lines
7.2 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 <vector>
|
|
#include "srslte/common/log.h"
|
|
#include "srslte/common/timers.h"
|
|
#include "srslte/interfaces/enb_interfaces.h"
|
|
#include "srslte/interfaces/sched_interface.h"
|
|
#include "srslte/common/tti_sync_cv.h"
|
|
#include "srslte/common/threads.h"
|
|
#include "srslte/common/tti_sync_cv.h"
|
|
#include "srslte/common/mac_pcap.h"
|
|
#include "scheduler.h"
|
|
#include "scheduler_metric.h"
|
|
#include "srslte/interfaces/enb_metrics_interface.h"
|
|
#include "ue.h"
|
|
|
|
namespace srsenb {
|
|
|
|
class pdu_process_handler
|
|
{
|
|
public:
|
|
virtual bool process_pdus() = 0;
|
|
};
|
|
|
|
typedef struct {
|
|
sched_interface::sched_args_t sched;
|
|
int link_failure_nof_err;
|
|
} mac_args_t;
|
|
|
|
class mac
|
|
:public mac_interface_phy,
|
|
public mac_interface_rlc,
|
|
public mac_interface_rrc,
|
|
public srslte::mac_interface_timers,
|
|
public pdu_process_handler
|
|
{
|
|
public:
|
|
mac();
|
|
~mac();
|
|
bool init(mac_args_t *args, srslte_cell_t *cell, phy_interface_mac *phy, rlc_interface_mac *rlc, rrc_interface_mac *rrc, 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);
|
|
int rach_detected(uint32_t tti, uint32_t preamble_idx, uint32_t time_adv);
|
|
|
|
int set_dl_ant_info(uint16_t rnti, asn1::rrc::phys_cfg_ded_s::ant_info_c_* dl_ant_info);
|
|
|
|
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 cqi_value);
|
|
int snr_info(uint32_t tti, uint16_t rnti, float snr);
|
|
int ack_info(uint32_t tti, uint16_t rnti, uint32_t tb_idx, bool ack);
|
|
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_t *dl_sched_res);
|
|
int get_ul_sched(uint32_t tti, ul_sched_t *ul_sched_res);
|
|
int get_mch_sched(uint32_t tti, bool is_mcch, dl_sched_t* dl_sched_res);
|
|
void build_mch_sched(uint32_t tbs);
|
|
void rl_failure(uint16_t rnti);
|
|
void rl_ok(uint16_t rnti);
|
|
void tti_clock();
|
|
|
|
/******** Interface from RRC (RRC -> MAC) ****************/
|
|
/* Provides cell configuration including SIB periodicity, etc. */
|
|
int cell_cfg(sched_interface::cell_cfg_t *cell_cfg);
|
|
void reset();
|
|
|
|
/* 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();
|
|
|
|
// Interface for upper-layer timers
|
|
srslte::timers::timer* timer_get(uint32_t timer_id);
|
|
void timer_release_id(uint32_t timer_id);
|
|
u_int32_t timer_get_unique_id();
|
|
|
|
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_mac *phy_h;
|
|
rlc_interface_mac *rlc_h;
|
|
rrc_interface_mac *rrc_h;
|
|
srslte::log *log_h;
|
|
|
|
srslte_cell_t cell;
|
|
mac_args_t args;
|
|
|
|
uint32_t tti;
|
|
bool started;
|
|
|
|
/* Scheduler unit */
|
|
sched scheduler;
|
|
dl_metric_rr sched_metric_dl_rr;
|
|
ul_metric_rr sched_metric_ul_rr;
|
|
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);
|
|
uint8_t* assemble_si(uint32_t index);
|
|
|
|
const static int rar_payload_len = 128;
|
|
std::vector<srslte::rar_pdu> rar_pdu_msg;
|
|
uint8_t rar_payload[sched_interface::MAX_RAR_LIST][rar_payload_len];
|
|
|
|
typedef struct {
|
|
uint32_t preamble_idx;
|
|
uint32_t ta_cmd;
|
|
uint16_t temp_crnti;
|
|
} pending_rar_t;
|
|
|
|
const static int MAX_PENDING_RARS = 64;
|
|
pending_rar_t pending_rars[MAX_PENDING_RARS];
|
|
|
|
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];
|
|
|
|
/* Functions for MAC Timers */
|
|
srslte::timers timers_db;
|
|
void setup_timers();
|
|
|
|
// pointer to MAC PCAP object
|
|
srslte::mac_pcap* pcap;
|
|
|
|
|
|
/* Class to run upper-layer timers with normal priority */
|
|
class timer_thread : public thread {
|
|
public:
|
|
timer_thread(srslte::timers *t) : ttisync(10240),timers(t),running(false) {start();}
|
|
void tti_clock();
|
|
void stop();
|
|
private:
|
|
void run_thread();
|
|
srslte::tti_sync_cv ttisync;
|
|
srslte::timers *timers;
|
|
bool running;
|
|
};
|
|
timer_thread timers_thread;
|
|
|
|
/* Class to process MAC PDUs from DEMUX unit */
|
|
class pdu_process : public thread {
|
|
public:
|
|
pdu_process(pdu_process_handler *h);
|
|
void notify();
|
|
void stop();
|
|
private:
|
|
void run_thread();
|
|
bool running;
|
|
bool have_data;
|
|
pthread_mutex_t mutex;
|
|
pthread_cond_t cvar;
|
|
pdu_process_handler *handler;
|
|
};
|
|
pdu_process pdu_process_thread;
|
|
|
|
};
|
|
|
|
} // namespace srsenb
|
|
|
|
#endif // SRSENB_MAC_H
|