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139 lines
3.7 KiB
C++
139 lines
3.7 KiB
C++
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2021 Software Radio Systems Limited
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*
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* By using this file, you agree to the terms and conditions set
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* forth in the LICENSE file which can be found at the top level of
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* the distribution.
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*
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*/
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#ifndef SRSRAN_RLC_AM_NR_H
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#define SRSRAN_RLC_AM_NR_H
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#include "srsran/common/buffer_pool.h"
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#include "srsran/common/common.h"
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#include "srsran/common/timers.h"
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#include "srsran/rlc/rlc_am_base.h"
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#include "srsran/upper/byte_buffer_queue.h"
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#include <map>
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#include <mutex>
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#include <pthread.h>
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#include <queue>
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namespace srsran {
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class rlc_am_nr : public rlc_common
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{
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public:
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rlc_am_nr(srslog::basic_logger& logger,
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uint32_t lcid_,
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srsue::pdcp_interface_rlc* pdcp_,
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srsue::rrc_interface_rlc* rrc_,
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srsran::timer_handler* timers_);
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bool configure(const rlc_config_t& cfg_) final;
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void stop() final;
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rlc_mode_t get_mode() final;
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uint32_t get_bearer() final;
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void reestablish() final;
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void empty_queue() final;
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void set_bsr_callback(bsr_callback_t callback) final;
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// PDCP interface
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void write_sdu(unique_byte_buffer_t sdu) final;
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void discard_sdu(uint32_t pdcp_sn) final;
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bool sdu_queue_is_full() final;
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// MAC interface
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bool has_data() final;
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uint32_t get_buffer_state() final;
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void get_buffer_state(uint32_t& tx_queue, uint32_t& prio_tx_queue) final;
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uint32_t read_pdu(uint8_t* payload, uint32_t nof_bytes) final;
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void write_pdu(uint8_t* payload, uint32_t nof_bytes) final;
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rlc_bearer_metrics_t get_metrics() final;
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void reset_metrics() final;
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private:
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// Transmitter sub-class
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class rlc_am_nr_tx
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{
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public:
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explicit rlc_am_nr_tx(rlc_am_nr* parent_);
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~rlc_am_nr_tx() = default;
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bool configure(const rlc_am_config_t& cfg_);
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void stop();
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int write_sdu(unique_byte_buffer_t sdu);
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uint32_t read_pdu(uint8_t* payload, uint32_t nof_bytes);
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void discard_sdu(uint32_t discard_sn);
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bool sdu_queue_is_full();
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bool has_data();
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uint32_t get_buffer_state();
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rlc_am_nr* parent = nullptr;
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srslog::basic_logger& logger;
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private:
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byte_buffer_pool* pool = nullptr;
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/****************************************************************************
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* Configurable parameters
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* Ref: 3GPP TS 38.322 v10.0.0 Section 7.4
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***************************************************************************/
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rlc_am_config_t cfg = {};
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};
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// Receiver sub-class
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class rlc_am_nr_rx
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{
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public:
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explicit rlc_am_nr_rx(rlc_am_nr* parent_);
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~rlc_am_nr_rx() = default;
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bool configure(const rlc_am_config_t& cfg_);
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void stop();
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void write_pdu(uint8_t* payload, uint32_t nof_bytes);
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rlc_am_nr* parent = nullptr;
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srslog::basic_logger& logger;
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private:
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byte_buffer_pool* pool = nullptr;
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/****************************************************************************
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* Configurable parameters
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* Ref: 3GPP TS 38.322 v10.0.0 Section 7.4
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***************************************************************************/
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rlc_am_config_t cfg = {};
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};
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// Common variables needed/provided by parent class
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srsue::rrc_interface_rlc* rrc = nullptr;
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srslog::basic_logger& logger;
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srsue::pdcp_interface_rlc* pdcp = nullptr;
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srsran::timer_handler* timers = nullptr;
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uint32_t lcid = 0;
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rlc_config_t cfg = {};
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std::string rb_name;
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static const int poll_periodicity = 8; // After how many data PDUs a status PDU shall be requested
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// Rx and Tx objects
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rlc_am_nr_tx tx;
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rlc_am_nr_rx rx;
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rlc_bearer_metrics_t metrics = {};
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};
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} // namespace srsran
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#endif // SRSRAN_RLC_AM_NR_H
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