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/**
* Copyright 2013-2021 Software Radio Systems Limited
*
* This file is part of srsLTE.
*
* srsLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#ifndef SRSUE_MAC_NR_INTERFACES_H
#define SRSUE_MAC_NR_INTERFACES_H
#include "srsran/common/interfaces_common.h"
#include "srsran/mac/mac_sch_pdu_nr.h"
namespace srsue {
/**
* @brief Interface from MAC NR parent class to subclass random access procedure
*/
class mac_interface_proc_ra_nr
{
public:
// Functions for identity handling, e.g., contention id and c-rnti
virtual uint64_t get_contention_id() = 0;
virtual uint16_t get_crnti() = 0;
virtual bool set_crnti(uint16_t c_rnti) = 0;
// Functions for msg3 manipulation which shall be transparent to the procedure
virtual bool msg3_is_transmitted() = 0;
virtual void msg3_flush() = 0;
virtual void msg3_prepare() = 0;
virtual bool msg3_is_empty() = 0;
// RRC functions
virtual void rrc_ra_problem() = 0;
};
/**
* @brief Interface from MAC NR parent class to SR subclass
*/
class mac_interface_sr_nr
{
public:
// SR can query MAC (as proxy for RA) to start RA procedure
virtual void start_ra() = 0;
};
/**
* @brief Interface from MAC NR parent class to mux subclass
*/
class mac_interface_mux_nr
{
public:
// MUX can query MAC for current C-RNTI for Msg3 transmission
virtual uint16_t get_crnti() = 0;
// MUX queries MAC to return LCG state for SBSR
virtual srsran::mac_sch_subpdu_nr::lcg_bsr_t generate_sbsr() = 0;
};
/**
* @brief Interface from MAC NR parent class to HARQ subclass
*/
class mac_interface_harq_nr
{
public:
// HARQ can query MAC for current C-RNTI
virtual uint16_t get_crnti() = 0;
// MAC also provides Temp C-RNTI (through RA proc)
virtual uint16_t get_temp_crnti() = 0;
// MAC provides the Currently Scheduled RNTI (for SPS)
virtual uint16_t get_csrnti() = 0;
};
/**
* @brief Interface from HARQ class to demux class
*/
class demux_interface_harq_nr
{
public:
/// Inform demux unit about a newly decoded TB.
virtual void push_pdu(srsran::unique_byte_buffer_t pdu, uint32_t tti) = 0;
};
} // namespace srsue
#endif // SRSUE_MAC_NR_INTERFACES_H