112922Sgabeblack@google.com/*****************************************************************************
212922Sgabeblack@google.com
312922Sgabeblack@google.com  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
412922Sgabeblack@google.com  more contributor license agreements.  See the NOTICE file distributed
512922Sgabeblack@google.com  with this work for additional information regarding copyright ownership.
612922Sgabeblack@google.com  Accellera licenses this file to you under the Apache License, Version 2.0
712922Sgabeblack@google.com  (the "License"); you may not use this file except in compliance with the
812922Sgabeblack@google.com  License.  You may obtain a copy of the License at
912922Sgabeblack@google.com
1012922Sgabeblack@google.com    http://www.apache.org/licenses/LICENSE-2.0
1112922Sgabeblack@google.com
1212922Sgabeblack@google.com  Unless required by applicable law or agreed to in writing, software
1312922Sgabeblack@google.com  distributed under the License is distributed on an "AS IS" BASIS,
1412922Sgabeblack@google.com  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
1512922Sgabeblack@google.com  implied.  See the License for the specific language governing
1612922Sgabeblack@google.com  permissions and limitations under the License.
1712922Sgabeblack@google.com
1812922Sgabeblack@google.com *****************************************************************************/
1912922Sgabeblack@google.com
2012922Sgabeblack@google.com#ifndef __SIMPLE_LT_TARGET1_H__
2112922Sgabeblack@google.com#define __SIMPLE_LT_TARGET1_H__
2212922Sgabeblack@google.com
2312922Sgabeblack@google.com#include "tlm.h"
2412922Sgabeblack@google.com#include <cassert>
2512922Sgabeblack@google.com#include <vector>
2612922Sgabeblack@google.com
2712922Sgabeblack@google.comclass SimpleLTTarget1 :
2812922Sgabeblack@google.com  public sc_core::sc_module,
2912922Sgabeblack@google.com  public virtual tlm::tlm_fw_transport_if<>
3012922Sgabeblack@google.com{
3112922Sgabeblack@google.compublic:
3212922Sgabeblack@google.com  typedef tlm::tlm_generic_payload      transaction_type;
3312922Sgabeblack@google.com  typedef tlm::tlm_phase                phase_type;
3412922Sgabeblack@google.com  typedef tlm::tlm_sync_enum            sync_enum_type;
3512922Sgabeblack@google.com  typedef tlm::tlm_fw_transport_if<>    fw_interface_type;
3612922Sgabeblack@google.com  typedef tlm::tlm_bw_transport_if<>    bw_interface_type;
3712922Sgabeblack@google.com  typedef tlm::tlm_target_socket<32>    target_socket_type;
3812922Sgabeblack@google.com
3912922Sgabeblack@google.compublic:
4012922Sgabeblack@google.com  target_socket_type socket;
4112922Sgabeblack@google.com
4212922Sgabeblack@google.compublic:
4312922Sgabeblack@google.com  SC_HAS_PROCESS(SimpleLTTarget1);
4412922Sgabeblack@google.com  SimpleLTTarget1(sc_core::sc_module_name name, bool invalidate = false) :
4512922Sgabeblack@google.com      sc_core::sc_module(name),
4612922Sgabeblack@google.com      socket("socket"),
4712922Sgabeblack@google.com      m_invalidate(invalidate)
4812922Sgabeblack@google.com  {
4912922Sgabeblack@google.com    // Bind this target's interface to the target socket
5012922Sgabeblack@google.com    socket(*this);
5112922Sgabeblack@google.com    if (invalidate)
5212922Sgabeblack@google.com    {
5312922Sgabeblack@google.com        SC_METHOD(invalidate_dmi_method);
5412922Sgabeblack@google.com        sensitive << m_invalidate_dmi_event;
5512922Sgabeblack@google.com        dont_initialize();
5612922Sgabeblack@google.com        m_invalidate_dmi_time = sc_core::sc_time(25, sc_core::SC_NS);
5712922Sgabeblack@google.com    }
5812922Sgabeblack@google.com  }
5912922Sgabeblack@google.com
6012922Sgabeblack@google.com  sync_enum_type nb_transport_fw(transaction_type& trans, phase_type& phase, sc_core::sc_time& t)
6112922Sgabeblack@google.com  {
6212922Sgabeblack@google.com    //Target never calls wait, so we can do this
6312922Sgabeblack@google.com    b_transport(trans, t);
6412922Sgabeblack@google.com
6512922Sgabeblack@google.com    return tlm::TLM_COMPLETED;
6612922Sgabeblack@google.com  }
6712922Sgabeblack@google.com
6812922Sgabeblack@google.com  void b_transport(transaction_type& trans, sc_core::sc_time &t)
6912922Sgabeblack@google.com  {
7012922Sgabeblack@google.com    sc_dt::uint64 address = trans.get_address();
7112922Sgabeblack@google.com    assert(address < 400);
7212922Sgabeblack@google.com
7312922Sgabeblack@google.com    unsigned int& data = *reinterpret_cast<unsigned int*>(trans.get_data_ptr());
7412922Sgabeblack@google.com    if (trans.get_command() == tlm::TLM_WRITE_COMMAND) {
7512922Sgabeblack@google.com      std::cout << name() << ": Received write request: A = 0x"
7612922Sgabeblack@google.com                << std::hex << (unsigned int)address
7712922Sgabeblack@google.com                << ", D = 0x" << data << std::dec
7812922Sgabeblack@google.com                << " @ " << sc_core::sc_time_stamp() << std::endl;
7912922Sgabeblack@google.com
8012922Sgabeblack@google.com      *reinterpret_cast<unsigned int*>(&mMem[address]) = data;
8112922Sgabeblack@google.com      t+=  sc_core::sc_time(10, sc_core::SC_NS);
8212922Sgabeblack@google.com
8312922Sgabeblack@google.com    } else {
8412922Sgabeblack@google.com      std::cout << name() << ": Received read request: A = 0x"
8512922Sgabeblack@google.com                << std::hex << (unsigned int)address << std::dec
8612922Sgabeblack@google.com                << " @ " << sc_core::sc_time_stamp() << std::endl;
8712922Sgabeblack@google.com
8812922Sgabeblack@google.com      data = *reinterpret_cast<unsigned int*>(&mMem[address]);
8912922Sgabeblack@google.com      t += sc_core::sc_time(100, sc_core::SC_NS);
9012922Sgabeblack@google.com    }
9112922Sgabeblack@google.com
9212922Sgabeblack@google.com    trans.set_response_status(tlm::TLM_OK_RESPONSE);
9312922Sgabeblack@google.com
9412922Sgabeblack@google.com    trans.set_dmi_allowed(true);
9512922Sgabeblack@google.com  }
9612922Sgabeblack@google.com
9712922Sgabeblack@google.com  unsigned int transport_dbg(transaction_type& r)
9812922Sgabeblack@google.com  {
9912922Sgabeblack@google.com    if (r.get_address() >= 400) return 0;
10012922Sgabeblack@google.com
10112922Sgabeblack@google.com    unsigned int tmp = (int)r.get_address();
10212922Sgabeblack@google.com    unsigned int num_bytes;
10312922Sgabeblack@google.com    if (tmp + r.get_data_length() >= 400) {
10412922Sgabeblack@google.com      num_bytes = 400 - tmp;
10512922Sgabeblack@google.com
10612922Sgabeblack@google.com    } else {
10712922Sgabeblack@google.com      num_bytes = r.get_data_length();
10812922Sgabeblack@google.com    }
10912922Sgabeblack@google.com    if (r.is_read()) {
11012922Sgabeblack@google.com      for (unsigned int i = 0; i < num_bytes; ++i) {
11112922Sgabeblack@google.com        r.get_data_ptr()[i] = mMem[i + tmp];
11212922Sgabeblack@google.com      }
11312922Sgabeblack@google.com
11412922Sgabeblack@google.com    } else {
11512922Sgabeblack@google.com      for (unsigned int i = 0; i < num_bytes; ++i) {
11612922Sgabeblack@google.com        mMem[i + tmp] = r.get_data_ptr()[i];
11712922Sgabeblack@google.com      }
11812922Sgabeblack@google.com    }
11912922Sgabeblack@google.com    return num_bytes;
12012922Sgabeblack@google.com  }
12112922Sgabeblack@google.com
12212922Sgabeblack@google.com  bool get_direct_mem_ptr(transaction_type& trans,
12312922Sgabeblack@google.com                          tlm::tlm_dmi&  dmi_data)
12412922Sgabeblack@google.com  {
12512922Sgabeblack@google.com    sc_dt::uint64 address = trans.get_address();
12612922Sgabeblack@google.com    if (m_invalidate) m_invalidate_dmi_event.notify(m_invalidate_dmi_time);
12712922Sgabeblack@google.com    if (address < 400) {
12812922Sgabeblack@google.com      dmi_data.allow_read_write();
12912922Sgabeblack@google.com      dmi_data.set_start_address(0x0);
13012922Sgabeblack@google.com      dmi_data.set_end_address(399);
13112922Sgabeblack@google.com      dmi_data.set_dmi_ptr(mMem);
13212922Sgabeblack@google.com      dmi_data.set_read_latency(sc_core::sc_time(100, sc_core::SC_NS));
13312922Sgabeblack@google.com      dmi_data.set_write_latency(sc_core::sc_time(10, sc_core::SC_NS));
13412922Sgabeblack@google.com      return true;
13512922Sgabeblack@google.com
13612922Sgabeblack@google.com    } else {
13712922Sgabeblack@google.com      // should not happen
13812922Sgabeblack@google.com      dmi_data.set_start_address(trans.get_address());
13912922Sgabeblack@google.com      dmi_data.set_end_address(trans.get_address());
14012922Sgabeblack@google.com      return false;
14112922Sgabeblack@google.com
14212922Sgabeblack@google.com    }
14312922Sgabeblack@google.com  }
14412922Sgabeblack@google.com
14512922Sgabeblack@google.com  void invalidate_dmi_method()
14612922Sgabeblack@google.com  {
14712922Sgabeblack@google.com      sc_dt::uint64 start_address = 0x0;
14812922Sgabeblack@google.com      sc_dt::uint64 end_address = 399;
14912922Sgabeblack@google.com      socket->invalidate_direct_mem_ptr(start_address, end_address);
15012922Sgabeblack@google.com  }
15112922Sgabeblack@google.comprivate:
15212922Sgabeblack@google.com  unsigned char mMem[400];
15312922Sgabeblack@google.com  bool              m_invalidate;
15412922Sgabeblack@google.com  sc_core::sc_event m_invalidate_dmi_event;
15512922Sgabeblack@google.com  sc_core::sc_time  m_invalidate_dmi_time;
15612922Sgabeblack@google.com};
15712922Sgabeblack@google.com
15812922Sgabeblack@google.com#endif
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