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C++

/**
*
* \section COPYRIGHT
*
* Copyright 2013-2021 Software Radio Systems Limited
*
* By using this file, you agree to the terms and conditions set
* forth in the LICENSE file which can be found at the top level of
* the distribution.
*
*/
/******************************************************************************
* File: gnb_stack_nr.h
* Description: L2/L3 gNB stack class.
*****************************************************************************/
#ifndef SRSRAN_GNB_STACK_NR_H
#define SRSRAN_GNB_STACK_NR_H
#include "s1ap/s1ap.h"
#include "srsenb/hdr/stack/mac/mac_nr.h"
#include "srsenb/hdr/stack/rrc/rrc_nr.h"
#include "srsenb/hdr/stack/upper/pdcp_nr.h"
#include "srsenb/hdr/stack/upper/rlc_nr.h"
#include "upper/gtpu.h"
#include "upper/sdap.h"
#include "enb_stack_base.h"
#include "srsenb/hdr/enb.h"
#include "srsran/interfaces/gnb_interfaces.h"
// This is needed for GW
#include "srsran/interfaces/ue_interfaces.h"
#include "srsue/hdr/stack/upper/gw.h"
namespace srsenb {
class gnb_stack_nr final : public srsenb::enb_stack_base,
public stack_interface_phy_nr,
public stack_interface_mac,
public srsue::stack_interface_gw,
public srsran::thread
{
public:
explicit gnb_stack_nr();
~gnb_stack_nr() final;
int init(const srsenb::stack_args_t& args_, const rrc_nr_cfg_t& rrc_cfg_, phy_interface_stack_nr* phy_);
int init(const srsenb::stack_args_t& args_, const rrc_nr_cfg_t& rrc_cfg_);
// eNB stack base interface
void stop() final;
std::string get_type() final;
bool get_metrics(srsenb::stack_metrics_t* metrics) final;
// GW srsue stack_interface_gw dummy interface
bool is_registered() { return true; };
bool start_service_request() { return true; };
// PHY->MAC interface
int sf_indication(const uint32_t tti);
int rx_data_indication(rx_data_ind_t& grant);
// Temporary GW interface
void write_sdu(uint32_t lcid, srsran::unique_byte_buffer_t sdu);
bool is_lcid_enabled(uint32_t lcid);
bool switch_on();
void run_tti(uint32_t tti);
// MAC interface to trigger processing of received PDUs
void process_pdus() final;
private:
void run_thread() final;
void run_tti_impl(uint32_t tti);
// args
srsenb::stack_args_t args = {};
phy_interface_stack_nr* phy = nullptr;
srslog::basic_logger& rlc_logger;
// task scheduling
static const int STACK_MAIN_THREAD_PRIO = 4;
srsran::task_scheduler task_sched;
srsran::task_multiqueue::queue_handle sync_task_queue, ue_task_queue, gw_task_queue, mac_task_queue;
// derived
std::unique_ptr<mac_nr> m_mac;
std::unique_ptr<rlc_nr> m_rlc;
std::unique_ptr<pdcp_nr> m_pdcp;
std::unique_ptr<sdap> m_sdap;
std::unique_ptr<rrc_nr> m_rrc;
std::unique_ptr<srsue::gw> m_gw;
// std::unique_ptr<ngap> m_ngap;
// std::unique_ptr<srsenb::gtpu> m_gtpu;
// state
bool running = false;
uint32_t current_tti = 10240;
};
} // namespace srsenb
#endif // SRSRAN_GNB_STACK_NR_H