tlm_req_rsp_channels.h

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  The following code is derived, directly or indirectly, from the SystemC
  source code Copyright (c) 1996-2014 by all Contributors.
  All Rights reserved.

  The contents of this file are subject to the restrictions and limitations
  set forth in the SystemC Open Source License (the "License");
  You may not use this file except in compliance with such restrictions and
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#ifndef __TLM_REQ_RSP_CHANNELS_H__
#define __TLM_REQ_RSP_CHANNELS_H__

#include "tlm_core/tlm_1/tlm_req_rsp/tlm_adapters/tlm_adapters.h"
#include "tlm_core/tlm_1/tlm_req_rsp/tlm_channels/tlm_fifo/tlm_fifo.h"
#include "tlm_core/tlm_1/tlm_req_rsp/tlm_channels/tlm_req_rsp_channels/tlm_put_get_imp.h"

namespace tlm {

template < typename REQ , typename RSP ,
     typename REQ_CHANNEL = tlm_fifo<REQ> ,
     typename RSP_CHANNEL = tlm_fifo<RSP> >

class tlm_req_rsp_channel : public sc_core::sc_module
{
public:
  // uni-directional slave interface

  sc_core::sc_export< tlm_fifo_get_if< REQ > > get_request_export;
  sc_core::sc_export< tlm_fifo_put_if< RSP > > put_response_export;

  // uni-directional master interface

  sc_core::sc_export< tlm_fifo_put_if< REQ > > put_request_export;
  sc_core::sc_export< tlm_fifo_get_if< RSP > > get_response_export;

  // master / slave interfaces

  sc_core::sc_export< tlm_master_if< REQ , RSP > > master_export;
  sc_core::sc_export< tlm_slave_if< REQ , RSP > > slave_export;


  tlm_req_rsp_channel( int req_size = 1 , int rsp_size = 1 ) :
    sc_core::sc_module( sc_core::sc_module_name( sc_core::sc_gen_unique_name("tlm_req_rsp_channel") ) ) ,
    request_fifo( req_size ) ,
    response_fifo( rsp_size ) ,
    master( request_fifo , response_fifo ) ,
    slave( request_fifo , response_fifo )
  {

    bind_exports();

  }

  tlm_req_rsp_channel( sc_core::sc_module_name module_name ,
           int req_size = 1 , int rsp_size = 1 ) :
    sc_core::sc_module( module_name  ) ,
    request_fifo( req_size ) ,
    response_fifo( rsp_size ) ,
    master( request_fifo , response_fifo ) ,
    slave( request_fifo , response_fifo )
  {

    bind_exports();

  }

private:
  void bind_exports() {

    put_request_export( request_fifo );
    get_request_export( request_fifo );

    put_response_export( response_fifo );
    get_response_export( response_fifo );

    master_export( master );
    slave_export( slave );

  }

protected:
  REQ_CHANNEL request_fifo;
  RSP_CHANNEL response_fifo;

  tlm_master_imp< REQ , RSP > master;
  tlm_slave_imp< REQ , RSP > slave;
};

template < typename REQ , typename RSP ,
     typename REQ_CHANNEL = tlm_fifo<REQ> ,
     typename RSP_CHANNEL = tlm_fifo<RSP> >
class tlm_transport_channel : public sc_core::sc_module
{
public:

  // master transport interface

  sc_core::sc_export< tlm_transport_if< REQ , RSP > > target_export;

  // slave interfaces

  sc_core::sc_export< tlm_fifo_get_if< REQ > > get_request_export;
  sc_core::sc_export< tlm_fifo_put_if< RSP > > put_response_export;

  sc_core::sc_export< tlm_slave_if< REQ , RSP > > slave_export;

  tlm_transport_channel() :
    sc_core::sc_module( sc_core::sc_module_name( sc_core::sc_gen_unique_name("transport_channel" ) ) ) ,
    target_export("target_export") ,
    req_rsp( "req_rsp" , 1 , 1 ) ,
    t2m("ts2m")
  {
    do_binding();
  }

  tlm_transport_channel( sc_core::sc_module_name nm ) :
    sc_core::sc_module( nm ) ,
    target_export("target_export") ,
    req_rsp( "req_rsp" , 1 , 1 ) ,
    t2m("tsm" )
  {
    do_binding();
  }

private:
  void do_binding() {

    target_export( t2m.target_export );

    t2m.master_port( req_rsp.master_export );

    get_request_export( req_rsp.get_request_export );
    put_response_export( req_rsp.put_response_export );
    slave_export( req_rsp.slave_export );

  }

  tlm_req_rsp_channel< REQ , RSP , REQ_CHANNEL , RSP_CHANNEL > req_rsp;
  tlm_transport_to_master< REQ , RSP > t2m;

};

} // namespace tlm

#endif