initiator_top.cpp

SystemC Transaction Level Modelling. 是基于SystemC之上的总线互联协议

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//=====================================================================
/// @file initiator_top.cpp
//
/// @brief Implements instantiation and interconnect of traffic_generator 
///        and an initiator via sc_fifos for at_1_phase_example
//
//=====================================================================
//  Original Authors:
//    Bill Bunton, ESLX
//    Charles Wilson, ESLX
//    Anna Keist, ESLX
//    Jack Donovan, ESLX
//=====================================================================


#include "initiator_top.h"                           // Top traffic generator & initiator
#include "reporting.h"                               // reporting macro helpers

static const char *filename = "initiator_top.cpp";  ///< filename for reporting

/// Constructor

initiator_top::initiator_top    		       
( sc_core::sc_module_name name                    
, const unsigned int    ID                        
, sc_dt::uint64         base_address_1            
, sc_dt::uint64         base_address_2
, unsigned int          active_txn_count  
) 
  :sc_module           (name) 	              // module name for top 
  
  ,initiator_socket ("at_initiator_socket")   // TLM socket

  ,m_ID             (ID)                      // initiator ID

  ,m_initiator                                // Init initiator
    ("m_initiator_1_phase"                                            
    ,ID                                           
    ,sc_core::sc_time(7, sc_core::SC_NS)      // set initiator end rsp delay
    )
    
  ,m_traffic_gen                              // Init traffic Generator
    ("m_traffic_gen"                              
    ,ID
    ,base_address_1                           // first base address
    ,base_address_2                           // second base address
    ,active_txn_count                         // Max active transactions
    )

{
  /// Bind ports to m_request_fifo between m_initiator and m_traffic_gen
  m_traffic_gen.request_out_port  (m_request_fifo);
  m_initiator.request_in_port     (m_request_fifo);
  
  /// Bind ports to m_response_fifo between m_initiator and m_traffic_gen
  m_initiator.response_out_port   (m_response_fifo);
  m_traffic_gen.response_in_port  (m_response_fifo);

  /// Bind initiator-socket to initiator-socket hierarchical connection 
  m_initiator.initiator_socket(initiator_socket);
}

//=====================================================================
///  @fn initiator_top::invalidate_direct_mem_ptr
/// 	    
///  @brief Unused mandatory virtual implementation
///  
///  @details
///    No DMI is implemented in this example so unused
///
//===================================================================== 
  void												
  initiator_top::invalidate_direct_mem_ptr					
  ( sc_dt::uint64      start_range                        
  , sc_dt::uint64      end_range                 
  )
  {  
    std::ostringstream       msg;          // log message
    msg.str ("");
	
    msg << "Initiator: " << m_ID << " Not implemented";
    REPORT_ERROR(filename, __FUNCTION__, msg.str());	  
  } // end invalidate_direct_mem_ptr
  
 //=====================================================================
 ///  @fn initiator_top::nb_transport_bw
 //  	    
 ///  @brief Unused mandatory virtual implementation
 ///           	    
 ///  @details
 ///    Unused implementation from hierarchichal connectivity of
 ///    Initiator sockets.
 ///
 //===================================================================== 
tlm::tlm_sync_enum	 
initiator_top::nb_transport_bw								
( tlm::tlm_generic_payload  &payload
, tlm::tlm_phase            &phase
, sc_core::sc_time          &delta
)
{
  std::ostringstream       msg;                 // log message
  msg.str ("");
	  
  msg << "Initiator: " << m_ID 
      << " Not implemented, for hierachical connection of initiator socket";
  REPORT_ERROR(filename, __FUNCTION__, msg.str());
	  
  return tlm::TLM_COMPLETED;  

 } // end nb_transport_bw