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128 lines
4.1 KiB
C++
128 lines
4.1 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 SRSENB_MAC_NR_H
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#define SRSENB_MAC_NR_H
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#include "srsran/common/block_queue.h"
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#include "srsran/common/mac_pcap.h"
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#include "srsenb/hdr/common/rnti_pool.h"
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#include "srsenb/hdr/stack/enb_stack_base.h"
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#include "srsenb/hdr/stack/mac/nr/sched_nr.h"
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#include "srsenb/hdr/stack/mac/nr/ue_nr.h"
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#include "srsran/common/task_scheduler.h"
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#include "srsran/interfaces/enb_metrics_interface.h"
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#include "srsran/interfaces/enb_rlc_interfaces.h"
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#include "srsran/interfaces/gnb_interfaces.h"
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namespace srsenb {
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struct mac_nr_args_t {
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srsran::phy_cfg_nr_t phy_base_cfg = {};
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int fixed_dl_mcs = -1;
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int fixed_ul_mcs = -1;
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srsenb::pcap_args_t pcap;
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};
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class mac_nr final : public mac_interface_phy_nr, public mac_interface_rrc_nr, public mac_interface_rlc_nr
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{
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public:
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mac_nr(srsran::task_sched_handle task_sched_);
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~mac_nr();
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int init(const mac_nr_args_t& args_,
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phy_interface_stack_nr* phy,
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stack_interface_mac* stack_,
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rlc_interface_mac* rlc_,
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rrc_interface_mac_nr* rrc_);
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void stop();
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void get_metrics(srsenb::mac_metrics_t& metrics);
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// MAC interface for RRC
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int cell_cfg(srsenb::sched_interface::cell_cfg_t* cell_cfg) override;
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uint16_t reserve_rnti() override;
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int read_pdu_bcch_bch(uint8_t* payload);
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// MAC interface for RLC
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// TODO:
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int rlc_buffer_state(uint16_t rnti, uint32_t lc_id, uint32_t tx_queue, uint32_t retx_queue) override { return 0; }
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// Interface for PHY
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void process_pdus();
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int slot_indication(const srsran_slot_cfg_t& slot_cfg) override;
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int get_dl_sched(const srsran_slot_cfg_t& slot_cfg, dl_sched_t& dl_sched) override;
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int get_ul_sched(const srsran_slot_cfg_t& slot_cfg, ul_sched_t& ul_sched) override;
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int pucch_info(const srsran_slot_cfg_t& slot_cfg, const pucch_info_t& pucch_info) override;
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int pusch_info(const srsran_slot_cfg_t& slot_cfg, const pusch_info_t& pusch_info) override;
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void rach_detected(const rach_info_t& rach_info) override;
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private:
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uint16_t add_ue(uint32_t enb_cc_idx);
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int remove_ue(uint16_t rnti);
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// internal misc helpers
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bool is_rnti_valid_unsafe(uint16_t rnti);
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bool is_rnti_active_unsafe(uint16_t rnti);
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// handle UCI data from either PUCCH or PUSCH
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bool handle_uci_data(const uint16_t rnti, const srsran_uci_cfg_nr_t& cfg, const srsran_uci_value_nr_t& value);
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// PDU processing
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int handle_pdu(srsran::unique_byte_buffer_t pdu);
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// Interaction with other components
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phy_interface_stack_nr* phy = nullptr;
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stack_interface_mac* stack = nullptr;
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rlc_interface_mac* rlc = nullptr;
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rrc_interface_mac_nr* rrc = nullptr;
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// args
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srsran::task_sched_handle task_sched;
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srsran::task_multiqueue::queue_handle stack_task_queue;
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std::unique_ptr<srsran::mac_pcap> pcap = nullptr;
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mac_nr_args_t args = {};
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srslog::basic_logger& logger;
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std::atomic<bool> started = {false};
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const static uint32_t NUMEROLOGY_IDX = 0; /// only 15kHz supported at this stage
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srsran::slot_point pdsch_slot, pusch_slot;
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srsenb::sched_nr sched;
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srsenb::sched_interface::cell_cfg_t cfg = {};
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// Map of active UEs
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pthread_rwlock_t rwlock = {};
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static const uint16_t FIRST_RNTI = 0x4601;
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srsran::static_circular_map<uint16_t, std::unique_ptr<ue_nr>, SRSENB_MAX_UES> ue_db;
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std::atomic<uint16_t> ue_counter;
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// BCH buffers
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struct sib_info_t {
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uint32_t index;
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uint32_t periodicity;
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srsran::unique_byte_buffer_t payload;
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};
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std::vector<sib_info_t> bcch_dlsch_payload;
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srsran::unique_byte_buffer_t bcch_bch_payload = nullptr;
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// Number of rach preambles detected for a cc.
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std::vector<uint32_t> detected_rachs;
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};
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} // namespace srsenb
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#endif // SRSENB_MAC_NR_H
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