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116 lines
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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_MAC_NR_H
#define SRSUE_MAC_NR_H
#include "srslte/common/block_queue.h"
#include "srslte/common/mac_nr_pcap.h"
#include "srslte/interfaces/mac_interface_types.h"
#include "srslte/interfaces/ue_nr_interfaces.h"
#include "srslte/mac/mac_sch_pdu_nr.h"
#include "srslte/srslog/srslog.h"
#include "srsue/hdr/stack/mac/mux.h"
#include "srsue/hdr/stack/ue_stack_base.h"
namespace srsue {
struct mac_nr_args_t {
srsue::pcap_args_t pcap;
// TODO: remove temp variable
uint32_t drb_lcid;
};
class mac_nr final : public mac_interface_phy_nr, public mac_interface_rrc_nr
{
public:
mac_nr(srslte::ext_task_sched_handle task_sched_);
~mac_nr();
int init(const mac_nr_args_t& args_, phy_interface_mac_nr* phy, rlc_interface_mac* rlc);
void stop();
void reset();
void run_tti(const uint32_t tti);
uint16_t get_dl_sched_rnti(uint32_t tti);
uint16_t get_ul_sched_rnti(uint32_t tti);
void bch_decoded_ok(uint32_t tti, srslte::unique_byte_buffer_t payload);
int sf_indication(const uint32_t tti);
void tb_decoded(const uint32_t cc_idx, mac_nr_grant_dl_t& grant);
void new_grant_ul(const uint32_t cc_idx, const mac_nr_grant_ul_t& grant);
void timer_expired(uint32_t timer_id);
void get_metrics(mac_metrics_t* metrics);
/******** Interface for RRC (RRC -> MAC) ****************/
void setup_lcid(const srslte::logical_channel_config_t& config);
void set_config(const srslte::bsr_cfg_t& bsr_cfg);
void set_config(const srslte::sr_cfg_t& sr_cfg);
/// stack interface
void process_pdus();
private:
void handle_pdu(srslte::unique_byte_buffer_t pdu);
void get_ul_data(const mac_nr_grant_ul_t& grant, phy_interface_stack_nr::tx_request_t* tx_request);
bool is_si_opportunity();
bool is_paging_opportunity();
bool has_crnti();
uint16_t get_crnti();
/// Interaction with rest of the stack
phy_interface_mac_nr* phy = nullptr;
rlc_interface_mac* rlc = nullptr;
srslte::ext_task_sched_handle task_sched;
std::unique_ptr<srslte::mac_nr_pcap> pcap = nullptr;
srslog::basic_logger& logger;
srslte::byte_buffer_pool* pool = nullptr;
mac_nr_args_t args = {};
bool started = false;
uint16_t crnti = 0xdead;
static constexpr uint32_t MIN_RLC_PDU_LEN =
5; ///< minimum bytes that need to be available in a MAC PDU for attempting to add another RLC SDU
srslte::block_queue<srslte::unique_byte_buffer_t>
pdu_queue; ///< currently only DCH PDUs supported (add BCH, PCH, etc)
mac_metrics_t metrics[SRSLTE_MAX_CARRIERS] = {};
/// Rx buffer
srslte::mac_sch_pdu_nr rx_pdu;
/// Tx buffer
srslte::mac_sch_pdu_nr tx_pdu;
srslte::unique_byte_buffer_t tx_buffer = nullptr;
srslte::unique_byte_buffer_t rlc_buffer = nullptr;
srslte::task_multiqueue::queue_handle stack_task_dispatch_queue;
};
} // namespace srsue
#endif // SRSUE_MAC_NR_H