xref: /gem5/src/systemc/ext/tlm_core/1/req_rsp/adapters/adapters.hh

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  more contributor license agreements.  See the NOTICE file distributed
  with this work for additional information regarding copyright ownership.
  Accellera licenses this file to you under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with the
  License.  You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

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#ifndef __SYSTEMC_EXT_TLM_CORE_1_REQ_RSP_ADAPTERS_HH__
#define __SYSTEMC_EXT_TLM_CORE_1_REQ_RSP_ADAPTERS_HH__

#include "../interfaces/master_slave_ifs.hh"

namespace tlm
{

template <typename REQ, typename RSP>
class tlm_transport_to_master : public sc_core::sc_module,
    public virtual tlm_transport_if<REQ, RSP>
{
  public:
    sc_core::sc_export<tlm_transport_if<REQ, RSP>> target_export;
    sc_core::sc_port<tlm_master_if<REQ, RSP>> master_port;

    tlm_transport_to_master(sc_core::sc_module_name nm) :
        sc_core::sc_module(nm)
    {
        target_export( *this );
    }

    tlm_transport_to_master() :
        sc_core::sc_module(sc_core::sc_module_name(
                    sc_core::sc_gen_unique_name("transport_to_master")))
    {
        target_export( *this );
    }

    RSP
    transport(const REQ &req)
    {
        mutex.lock();
        master_port->put(req);
        rsp = master_port->get();

        mutex.unlock();
        return rsp;
    }

  private:
    sc_core::sc_mutex mutex;
    RSP rsp;
};

template <typename REQ, typename RSP>
class tlm_slave_to_transport : public sc_core::sc_module
{
  public:
    SC_HAS_PROCESS(tlm_slave_to_transport);

    sc_core::sc_port<tlm_slave_if<REQ, RSP>> slave_port;
    sc_core::sc_port<tlm_transport_if<REQ, RSP>> initiator_port;

    tlm_slave_to_transport(sc_core::sc_module_name nm) :
        sc_core::sc_module(nm)
    {}

    tlm_slave_to_transport() :
        sc_core::sc_module(sc_core::sc_module_name(
                    sc_core::sc_gen_unique_name("slave_to_transport")))
    {}

  private:
    void
    run()
    {
        REQ req;
        RSP rsp;

        while (true) {
            slave_port->get(req);
            rsp = initiator_port->transport(req);
            slave_port->put(rsp);
        }
    }
};

} // namespace tlm

#endif /* __SYSTEMC_EXT_TLM_CORE_1_REQ_RSP_ADAPTERS_HH__ */