lt_target.cpp

来自「SystemC Transaction Level Modelling. 是基于」· C++ 代码 · 共 104 行

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    source code Copyright (c) 1996-2008 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 Version 3.0 (the "License");
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//=====================================================================
/// @file lt_target.cpp
//
/// @brief Implements single phase AT target
//
//=====================================================================
//  Original Authors:
//    Jack Donovan, ESLX
//
//=====================================================================

#include "lt_target.h"                        // our header
#include "reporting.h"                            // reporting macros
                    
using namespace  std;

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

SC_HAS_PROCESS(lt_target);
///Constructor
lt_target::lt_target                      
( sc_core::sc_module_name module_name               // module name
, const unsigned int        ID                      // target ID
, const char                *memory_socket          // socket name
, sc_dt::uint64             memory_size             // memory size (bytes)
, unsigned int              memory_width            // memory width (bytes)
, const sc_core::sc_time    accept_delay            // accept delay (SC_TIME)
, const sc_core::sc_time    read_response_delay     // read response delay (SC_TIME)
, const sc_core::sc_time    write_response_delay    // write response delay (SC_TIME)
)
: sc_module               (module_name)             /// init module name
, m_memory_socket         (memory_socket)           /// init socket name
, m_ID                    (ID)                      /// init target ID
, m_memory_size           (memory_size)             /// init memory size (bytes)
, m_memory_width          (memory_width)            /// init memory width (bytes)
, m_accept_delay          (accept_delay)            /// init accept delay
, m_read_response_delay   (read_response_delay)     /// init read response delay
, m_write_response_delay  (write_response_delay)    /// init write response delay

, m_target_memory
  ( m_ID                          // initiator ID for messaging
  , m_read_response_delay         // delay for reads
  , m_write_response_delay        // delay for writes
  , m_memory_size                 // memory size (bytes)
  , m_memory_width                // memory width (bytes)      
  )
  
{
  
  m_memory_socket.register_b_transport(this, &lt_target::custom_b_transport);

}

//==============================================================================
//  b_transport implementation calls from initiators 
//
//=============================================================================
void                                        
lt_target::custom_b_transport
( tlm::tlm_generic_payload  &payload                // ref to  Generic Payload 
, sc_core::sc_time          &delay_time             // delay time 
)
{
 
  std::ostringstream  msg;                          
  msg.str("");
  sc_core::sc_time      mem_op_time;
  
  m_target_memory.operation(payload, mem_op_time);

  msg << "Target: " << m_ID               
      << " returned delay of " << delay_time 
      << " + " << m_accept_delay << " + " << mem_op_time;

  delay_time = delay_time + m_accept_delay + mem_op_time;
  
  msg << " = " << delay_time;
  REPORT_INFO(filename,  __FUNCTION__, msg.str());
  
  return;     
}