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68 lines
2.9 KiB
C++

/**
*
* \section COPYRIGHT
*
* Copyright 2013-2021 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 SRSRAN_ENB_RLC_INTERFACES_H
#define SRSRAN_ENB_RLC_INTERFACES_H
#include "srsran/common/byte_buffer.h"
#include "srsran/interfaces/rlc_interface_types.h"
namespace srsenb {
// RLC interface for MAC
class rlc_interface_mac
{
public:
/* MAC calls RLC to get RLC segment of nof_bytes length.
* Segmentation happens in this function. RLC PDU is stored in payload. */
virtual int read_pdu(uint16_t rnti, uint32_t lcid, uint8_t* payload, uint32_t nof_bytes) = 0;
/* MAC calls RLC to push an RLC PDU. This function is called from an independent MAC thread.
* PDU gets placed into the buffer and higher layer thread gets notified. */
virtual void write_pdu(uint16_t rnti, uint32_t lcid, uint8_t* payload, uint32_t nof_bytes) = 0;
};
// RLC interface for PDCP
class rlc_interface_pdcp
{
public:
/* PDCP calls RLC to push an RLC SDU. SDU gets placed into the RLC buffer and MAC pulls
* RLC PDUs according to TB size. */
virtual void write_sdu(uint16_t rnti, uint32_t lcid, srsran::unique_byte_buffer_t sdu) = 0;
virtual void discard_sdu(uint16_t rnti, uint32_t lcid, uint32_t sn) = 0;
virtual bool rb_is_um(uint16_t rnti, uint32_t lcid) = 0;
virtual bool sdu_queue_is_full(uint16_t rnti, uint32_t lcid) = 0;
virtual bool is_suspended(uint16_t rnti, uint32_t lcid) = 0;
};
// RLC interface for RRC
class rlc_interface_rrc
{
public:
virtual void clear_buffer(uint16_t rnti) = 0;
virtual void add_user(uint16_t rnti) = 0;
virtual void rem_user(uint16_t rnti) = 0;
virtual void add_bearer(uint16_t rnti, uint32_t lcid, srsran::rlc_config_t cnfg) = 0;
virtual void add_bearer_mrb(uint16_t rnti, uint32_t lcid) = 0;
virtual void del_bearer(uint16_t rnti, uint32_t lcid) = 0;
virtual void write_sdu(uint16_t rnti, uint32_t lcid, srsran::unique_byte_buffer_t sdu) = 0;
virtual bool has_bearer(uint16_t rnti, uint32_t lcid) = 0;
virtual bool suspend_bearer(uint16_t rnti, uint32_t lcid) = 0;
virtual bool is_suspended(uint16_t rnti, uint32_t lcid) = 0;
virtual bool resume_bearer(uint16_t rnti, uint32_t lcid) = 0;
virtual void reestablish(uint16_t rnti) = 0;
};
} // namespace srsenb
#endif // SRSRAN_ENB_RLC_INTERFACES_H