lt_synch_target.cpp

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

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    All Rights reserved.
 
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//=====================================================================
/// @file lt_synch_target.cpp
//
/// @brief Implements single phase AT target
//
//=====================================================================
//  Original Authors:
//    Jack Donovan, ESLX
//
//=====================================================================

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

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

SC_HAS_PROCESS(lt_synch_target);
///Constructor
lt_synch_target::lt_synch_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_synch_target::custom_b_transport);

}

//==============================================================================
//  b_transport implementation calls from initiators 
//
//=============================================================================
void                                        
lt_synch_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);
  
  delay_time = delay_time + m_accept_delay + mem_op_time;
  
  msg << "Target: " << m_ID               
      << " Forcing a synch in a temporal decoupled initiator with wait( " 
      << delay_time << "),";
  REPORT_INFO(filename,  __FUNCTION__, msg.str());
   
  wait(delay_time);
  
  delay_time = sc_core::SC_ZERO_TIME;
  
  msg.str("");
  msg << "Target: " << m_ID               
      << " return from wait will return a delay of " 
      << delay_time;
  REPORT_INFO(filename,  __FUNCTION__, msg.str());
  
  return;     
}