183 lines
5.8 KiB
C++
183 lines
5.8 KiB
C++
/*
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* Copyright 2013-2020 Software Radio Systems Limited
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*
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* This file is part of srsLTE.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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/******************************************************************************
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* File: ue_stack.h
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* Description: L2/L3 LTE stack class.
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*****************************************************************************/
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#ifndef SRSUE_UE_STACK_LTE_H
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#define SRSUE_UE_STACK_LTE_H
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#include <functional>
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#include <pthread.h>
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#include <stdarg.h>
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#include <string>
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#include "mac/mac.h"
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#include "rrc/rrc.h"
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#include "srslte/radio/radio.h"
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#include "srslte/upper/pdcp.h"
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#include "srslte/upper/rlc.h"
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#include "upper/nas.h"
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#include "upper/usim.h"
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#include "srslte/common/buffer_pool.h"
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#include "srslte/common/log_filter.h"
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#include "srslte/common/multiqueue.h"
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#include "srslte/common/thread_pool.h"
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#include "srslte/interfaces/ue_interfaces.h"
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#include "srslte/common/time_prof.h"
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#include "srsue/hdr/ue_metrics_interface.h"
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#include "ue_stack_base.h"
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namespace srsue {
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class ue_stack_lte final : public ue_stack_base,
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public stack_interface_phy_lte,
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public stack_interface_gw,
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public stack_interface_mac,
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public stack_interface_rrc,
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public task_handler_interface_lte,
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public srslte::thread
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{
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public:
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ue_stack_lte();
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~ue_stack_lte();
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std::string get_type() final;
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int init(const stack_args_t& args_, srslte::logger* logger_);
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int init(const stack_args_t& args_, srslte::logger* logger_, phy_interface_stack_lte* phy_, gw_interface_stack* gw_);
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bool switch_on() final;
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bool switch_off();
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bool enable_data();
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bool disable_data();
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void stop();
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bool get_metrics(stack_metrics_t* metrics);
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bool is_rrc_connected();
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// RRC interface for PHY
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void in_sync() final;
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void out_of_sync() final;
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void new_cell_meas(const std::vector<phy_meas_t>& meas) override { rrc.new_cell_meas(meas); }
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// MAC Interface for PHY
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uint16_t get_dl_sched_rnti(uint32_t tti) { return mac.get_dl_sched_rnti(tti); }
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uint16_t get_ul_sched_rnti(uint32_t tti) { return mac.get_ul_sched_rnti(tti); }
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void new_grant_ul(uint32_t cc_idx, mac_grant_ul_t grant, tb_action_ul_t* action)
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{
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mac.new_grant_ul(cc_idx, grant, action);
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}
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void new_grant_dl(uint32_t cc_idx, mac_grant_dl_t grant, tb_action_dl_t* action)
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{
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mac.new_grant_dl(cc_idx, grant, action);
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}
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void tb_decoded(uint32_t cc_idx, mac_grant_dl_t grant, bool ack[SRSLTE_MAX_CODEWORDS])
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{
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mac.tb_decoded(cc_idx, grant, ack);
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}
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void bch_decoded_ok(uint32_t cc_idx, uint8_t* payload, uint32_t len) { mac.bch_decoded_ok(cc_idx, payload, len); }
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void mch_decoded(uint32_t len, bool crc) { mac.mch_decoded(len, crc); }
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void new_mch_dl(srslte_pdsch_grant_t phy_grant, tb_action_dl_t* action) { mac.new_mch_dl(phy_grant, action); }
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void set_mbsfn_config(uint32_t nof_mbsfn_services) { mac.set_mbsfn_config(nof_mbsfn_services); }
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void run_tti(uint32_t tti) final;
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// Interface for GW
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void write_sdu(uint32_t lcid, srslte::unique_byte_buffer_t sdu, bool blocking) final;
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bool is_lcid_enabled(uint32_t lcid) final { return pdcp.is_lcid_enabled(lcid); }
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// Interface to upper MAC
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void process_pdus() final;
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void wait_ra_completion(uint16_t rnti) final;
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void start_prach_configuration() final;
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// Interface for RRC
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void start_cell_search() final;
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void start_cell_select(const phy_interface_rrc_lte::phy_cell_t* cell) final;
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// Task Handling interface
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srslte::timer_handler::unique_timer get_unique_timer() override { return timers.get_unique_timer(); }
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private:
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void run_thread() final;
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void run_tti_impl(uint32_t tti);
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void stop_impl();
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const uint32_t TTI_STAT_PERIOD = 1024;
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const std::chrono::milliseconds TTI_WARN_THRESHOLD_MS{5};
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const uint32_t SYNC_QUEUE_WARN_THRESHOLD = 5;
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bool running;
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srsue::stack_args_t args;
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std::vector<uint32_t> proc_time;
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// timers
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srslte::timer_handler timers;
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// UE stack logging
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srslte::logger* logger = nullptr;
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srslte::log_filter log; ///< our own log filter
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srslte::log_filter mac_log;
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srslte::log_filter rlc_log;
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srslte::log_filter pdcp_log;
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srslte::log_filter rrc_log;
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srslte::log_filter usim_log;
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srslte::log_filter pool_log;
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// stack components
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srsue::mac mac;
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srslte::mac_pcap mac_pcap;
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srslte::nas_pcap nas_pcap;
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srslte::rlc rlc;
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srslte::pdcp pdcp;
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srsue::rrc rrc;
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srsue::nas nas;
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std::unique_ptr<usim_base> usim;
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// RAT-specific interfaces
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phy_interface_stack_lte* phy = nullptr;
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gw_interface_stack* gw = nullptr;
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// Thread
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static const int STACK_MAIN_THREAD_PRIO = -1; // Use default high-priority below UHD
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srslte::task_multiqueue pending_tasks;
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int sync_queue_id = -1, ue_queue_id = -1, gw_queue_id = -1, mac_queue_id = -1, background_queue_id = -1;
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srslte::task_thread_pool background_tasks; ///< Thread pool used for long, low-priority tasks
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// TTI stats
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srslte::tprof<srslte::sliding_window_stats_ms> tti_tprof;
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};
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} // namespace srsue
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#endif // SRSUE_UE_STACK_LTE_H
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