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/*****************************************************************************
Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
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
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied. See the License for the specific language governing
permissions and limitations under the License.
*****************************************************************************/
//=====================================================================
/// @file traffic_generator.h
//
/// @brief traffic_generator class header
//
//=====================================================================
// Authors:
// Bill Bunton, ESLX
// Charles Wilson, ESLX
// Jack Donovan, ESLX
//====================================================================
#ifndef __TRAFFIC_GENERATOR_H__
#define __TRAFFIC_GENERATOR_H__
#include "tlm.h" // TLM headers
#include <queue> // queue header from std lib
class traffic_generator // traffic_generator
: public sc_core::sc_module // sc_module
{
// Member Methods ====================================================
public:
//=============================================================================
/// @fn traffic_generator
//
/// @brief traffic_generator constructor
//
/// @details
/// Initializes Traffice Generator iIncluding active transaction count
//
//=============================================================================
traffic_generator
( sc_core::sc_module_name name ///< module name for SC
, const unsigned int ID ///< initiator ID
, sc_dt::uint64 base_address_1 ///< first base address
, sc_dt::uint64 base_address_2 ///< second base address
, unsigned int active_txn_count ///< Max number of active transactions
);
//=============================================================================
/// @fn traffic_generator_thread
//
/// @brief traffic_generator processing thread
//
/// @details
/// Method actually called by SC simulator to generate and
/// check traffic. Generate Writes then Reads to check the
/// Writes
//
//=============================================================================
void
traffic_generator_thread
( void
);
//-----------------------------------------------------------------------------
// Check Complete method
void check_complete (void);
//-----------------------------------------------------------------------------
// Check All Complete method
void check_all_complete (void);
// memory manager (queue)
static const unsigned int m_txn_data_size = 4; // transaction size
class tg_queue_c /// memory managed queue class
: public tlm::tlm_mm_interface /// implements memory management IF
{
public:
tg_queue_c /// tg_queue_c constructor
( void
)
{
}
void
enqueue /// enqueue entry (create)
( void
)
{
tlm::tlm_generic_payload *transaction_ptr = new tlm::tlm_generic_payload ( this ); /// transaction pointer
unsigned char *data_buffer_ptr = new unsigned char [ m_txn_data_size ]; /// data buffer pointer
transaction_ptr->set_data_ptr ( data_buffer_ptr );
m_queue.push ( transaction_ptr );
}
tlm::tlm_generic_payload * /// transaction pointer
dequeue /// dequeue entry
( void
)
{
tlm::tlm_generic_payload *transaction_ptr = m_queue.front ();
m_queue.pop();
return transaction_ptr;
}
void
release /// release entry
( tlm::tlm_generic_payload *transaction_ptr /// transaction pointer
)
{
transaction_ptr->release ();
}
bool /// true / false
is_empty /// queue empty
( void
)
{
return m_queue.empty ();
}
size_t /// queue size
size /// queue size
( void
)
{
return m_queue.size ();
}
void
free /// return transaction
( tlm::tlm_generic_payload *transaction_ptr /// to the pool
)
{
transaction_ptr->reset();
m_queue.push ( transaction_ptr );
}
private:
std::queue<tlm::tlm_generic_payload*> m_queue; /// queue
};
//=============================================================================
// Member Variables
private:
typedef tlm::tlm_generic_payload *gp_ptr; // pointer to a generic payload
const unsigned int m_ID; // initiator ID
sc_dt::uint64 m_base_address_1; // first base address
sc_dt::uint64 m_base_address_2; // second base address
tg_queue_c m_transaction_queue; // transaction queue
unsigned int m_active_txn_count; // active transaction count
bool m_check_all;
public:
/// Port for requests to the initiator
sc_core::sc_port<sc_core::sc_fifo_out_if <gp_ptr> > request_out_port;
/// Port for responses from the initiator
sc_core::sc_port<sc_core::sc_fifo_in_if <gp_ptr> > response_in_port;
};
#endif /* __TRAFFIC_GENERATOR_H__ */
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