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C++

/**
*
* \section COPYRIGHT
*
* Copyright 2013-2020 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.
*
*/
#ifndef SRSUE_UE_STACK_NR_H
#define SRSUE_UE_STACK_NR_H
#include <functional>
#include <pthread.h>
#include <stdarg.h>
#include <string>
#include "mac_nr/mac_nr.h"
#include "rrc/rrc_nr.h"
#include "srslte/radio/radio.h"
#include "srslte/upper/pdcp.h"
#include "srslte/upper/rlc.h"
#include "upper/nas.h"
#include "upper/usim.h"
#include "srslte/common/buffer_pool.h"
#include "srslte/common/log_filter.h"
#include "srslte/common/mac_pcap.h"
#include "srslte/common/multiqueue.h"
#include "srslte/common/thread_pool.h"
#include "srslte/interfaces/ue_nr_interfaces.h"
#include "srsue/hdr/ue_metrics_interface.h"
#include "ue_stack_base.h"
namespace srsue {
/** \brief L2/L3 stack class for 5G/NR UEs.
*
* This class wraps all L2/L3 blocks and provides a single interface towards the PHY.
*/
class ue_stack_nr final : public ue_stack_base,
public stack_interface_phy_nr,
public stack_interface_gw,
public stack_interface_rrc,
public srslte::thread
{
public:
ue_stack_nr(srslte::logger* logger_);
~ue_stack_nr();
std::string get_type() final;
int init(const stack_args_t& args_);
int init(const stack_args_t& args_, phy_interface_stack_nr* phy_, gw_interface_stack* gw_);
bool switch_on() final;
bool switch_off() final;
void stop();
// GW srsue stack_interface_gw dummy interface
bool is_registered() { return true; };
bool start_service_request() { return true; };
bool get_metrics(stack_metrics_t* metrics);
bool is_rrc_connected();
// RRC interface for PHY
void in_sync() final;
void out_of_sync() final;
void run_tti(uint32_t tti) final;
// MAC interface for PHY
int sf_indication(const uint32_t tti)
{
run_tti(tti);
return SRSLTE_SUCCESS;
}
void tb_decoded(const uint32_t cc_idx, mac_nr_grant_dl_t& grant) final { mac->tb_decoded(cc_idx, grant); }
void new_grant_ul(const uint32_t cc_idx, const mac_nr_grant_ul_t& grant) final { mac->new_grant_ul(cc_idx, grant); }
// Interface for GW
void write_sdu(uint32_t lcid, srslte::unique_byte_buffer_t sdu) final;
bool is_lcid_enabled(uint32_t lcid) final { return pdcp->is_lcid_enabled(lcid); }
// Interface for RRC
srslte::tti_point get_current_tti() { return srslte::tti_point{0}; };
private:
void run_thread() final;
void run_tti_impl(uint32_t tti);
void stop_impl();
bool running = false;
srsue::stack_args_t args = {};
// task scheduler
srslte::task_scheduler task_sched;
srslte::task_multiqueue::queue_handle sync_task_queue, ue_task_queue, gw_task_queue;
// UE stack logging
srslte::logger* logger = nullptr;
srslte::log_ref rlc_log;
srslte::log_ref pdcp_log;
// stack components
std::unique_ptr<mac_nr> mac;
std::unique_ptr<rrc_nr> rrc;
std::unique_ptr<srslte::rlc> rlc;
std::unique_ptr<srslte::pdcp> pdcp;
// RAT-specific interfaces
phy_interface_stack_nr* phy = nullptr;
gw_interface_stack* gw = nullptr;
// Thread
static const int STACK_MAIN_THREAD_PRIO = 4;
};
} // namespace srsue
#endif // SRSUE_UE_STACK_NR_H