mirror of https://github.com/PentHertz/srsLTE.git
82 lines
2.1 KiB
C++
82 lines
2.1 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 SRSUE_MUX_NR_H
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#define SRSUE_MUX_NR_H
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#include "mac_nr_interfaces.h"
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#include "proc_bsr_nr.h"
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#include "srsran/common/byte_buffer.h"
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#include "srsran/common/common.h"
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#include "srsran/mac/mac_sch_pdu_nr.h"
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#include "srsran/srslog/srslog.h"
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#include "srsran/srsran.h"
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#include "srsue/hdr/stack/mac_common/mux_base.h"
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#include <mutex>
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namespace srsue {
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class mux_nr final : mux_base, public mux_interface_bsr_nr
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{
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public:
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explicit mux_nr(mac_interface_mux_nr& mac_, srslog::basic_logger& logger);
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~mux_nr(){};
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void reset();
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int32_t init(rlc_interface_mac* rlc_);
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void msg3_flush();
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void msg3_prepare();
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void msg3_transmitted();
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bool msg3_is_transmitted();
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bool msg3_is_pending();
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bool msg3_is_empty();
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// MAC interface
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int setup_lcid(const srsran::logical_channel_config_t& config);
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// Interface of UL HARQ
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srsran::unique_byte_buffer_t get_pdu(uint32_t max_pdu_len);
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// Interface for BSR procedure
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void generate_bsr_mac_ce(const srsran::bsr_format_nr_t& format);
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private:
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// internal helper methods
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// ctor configured members
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mac_interface_mux_nr& mac;
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rlc_interface_mac* rlc = nullptr;
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srslog::basic_logger& logger;
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// Msg3 related
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srsran::unique_byte_buffer_t msg3_buff = nullptr;
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typedef enum { none, pending, transmitted } msg3_state_t;
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msg3_state_t msg3_state = none;
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static constexpr int32_t MIN_RLC_PDU_LEN =
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5; ///< minimum bytes that need to be available in a MAC PDU for attempting to add another RLC SDU
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srsran::unique_byte_buffer_t rlc_buff = nullptr;
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srsran::mac_sch_pdu_nr tx_pdu; /// single MAC PDU for packing
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enum bsr_req_t { no_bsr, sbsr_ce, lbsr_ce };
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std::atomic<bsr_req_t> add_bsr_ce = {bsr_req_t::no_bsr}; /// BSR procedure requests MUX to add a BSR CE
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// Mutex for exclusive access
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std::mutex mutex;
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};
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} // namespace srsue
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#endif // SRSUE_MUX_NR_H
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