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
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1612922Sgabeblack@google.com  permissions and limitations under the License.
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1812922Sgabeblack@google.com *****************************************************************************/
1912922Sgabeblack@google.com
2012922Sgabeblack@google.com#ifndef __SIMPLE_LT_TARGET2_H__
2112922Sgabeblack@google.com#define __SIMPLE_LT_TARGET2_H__
2212922Sgabeblack@google.com
2312922Sgabeblack@google.com#include "tlm.h"
2412922Sgabeblack@google.com#include "tlm_utils/passthrough_target_socket.h"
2512922Sgabeblack@google.com#include <cassert>
2612922Sgabeblack@google.com#include <vector>
2712922Sgabeblack@google.com
2812922Sgabeblack@google.comclass SimpleLTTarget2 : public sc_core::sc_module
2912922Sgabeblack@google.com{
3012922Sgabeblack@google.compublic:
3112922Sgabeblack@google.com  typedef tlm::tlm_generic_payload             transaction_type;
3212922Sgabeblack@google.com  typedef tlm::tlm_phase                       phase_type;
3312922Sgabeblack@google.com  typedef tlm::tlm_sync_enum                   sync_enum_type;
3412922Sgabeblack@google.com  typedef tlm_utils::passthrough_target_socket<SimpleLTTarget2> target_socket_type;
3512922Sgabeblack@google.com
3612922Sgabeblack@google.com
3712922Sgabeblack@google.compublic:
3812922Sgabeblack@google.com  target_socket_type socket;
3912922Sgabeblack@google.com
4012922Sgabeblack@google.compublic:
4112922Sgabeblack@google.com  SimpleLTTarget2(sc_core::sc_module_name name) :
4212922Sgabeblack@google.com    sc_core::sc_module(name),
4312922Sgabeblack@google.com    socket("socket")
4412922Sgabeblack@google.com  {
4512922Sgabeblack@google.com    // register nb_transport method
4612922Sgabeblack@google.com    socket.register_b_transport(this, &SimpleLTTarget2::myBTransport);
4712922Sgabeblack@google.com    socket.register_nb_transport_fw(this, &SimpleLTTarget2::myNBTransport);
4812922Sgabeblack@google.com    socket.register_get_direct_mem_ptr(this, &SimpleLTTarget2::myGetDMIPtr);
4912922Sgabeblack@google.com
5012922Sgabeblack@google.com    // TODO: we don't register the transport_dbg callback here, so we
5112922Sgabeblack@google.com    // can test if something bad happens
5212922Sgabeblack@google.com    // REGISTER_DEBUGTRANSPORT(socket, transport_dbg, 0);
5312922Sgabeblack@google.com  }
5412922Sgabeblack@google.com
5512922Sgabeblack@google.com  void myBTransport(transaction_type& trans,
5612922Sgabeblack@google.com                     sc_core::sc_time& t)
5712922Sgabeblack@google.com  {
5812922Sgabeblack@google.com    sc_dt::uint64 address = trans.get_address();
5912922Sgabeblack@google.com    assert(address < 400);
6012922Sgabeblack@google.com
6112922Sgabeblack@google.com    unsigned int& data = *reinterpret_cast<unsigned int*>(trans.get_data_ptr());
6212922Sgabeblack@google.com    if (trans.get_command() == tlm::TLM_WRITE_COMMAND) {
6312922Sgabeblack@google.com      std::cout << name() << ": Received write request: A = 0x"
6412922Sgabeblack@google.com                << std::hex << (unsigned int)address
6512922Sgabeblack@google.com                << ", D = 0x" << data << std::dec
6612922Sgabeblack@google.com                << " @ " << sc_core::sc_time_stamp() << std::endl;
6712922Sgabeblack@google.com
6812922Sgabeblack@google.com      *reinterpret_cast<unsigned int*>(&mMem[address]) = data;
6912922Sgabeblack@google.com      t += sc_core::sc_time(10, sc_core::SC_NS);
7012922Sgabeblack@google.com
7112922Sgabeblack@google.com    } else {
7212922Sgabeblack@google.com      std::cout << name() << ": Received read request: A = 0x"
7312922Sgabeblack@google.com                << std::hex << (unsigned int)address << std::dec
7412922Sgabeblack@google.com                << " @ " << sc_core::sc_time_stamp() << std::endl;
7512922Sgabeblack@google.com
7612922Sgabeblack@google.com      data = *reinterpret_cast<unsigned int*>(&mMem[address]);
7712922Sgabeblack@google.com      t += sc_core::sc_time(100, sc_core::SC_NS);
7812922Sgabeblack@google.com    }
7912922Sgabeblack@google.com
8012922Sgabeblack@google.com    trans.set_response_status(tlm::TLM_OK_RESPONSE);
8112922Sgabeblack@google.com
8212922Sgabeblack@google.com    trans.set_dmi_allowed(true);
8312922Sgabeblack@google.com  }
8412922Sgabeblack@google.com
8512922Sgabeblack@google.com  sync_enum_type myNBTransport(transaction_type& trans,
8612922Sgabeblack@google.com                               phase_type& phase,
8712922Sgabeblack@google.com                               sc_core::sc_time& t)
8812922Sgabeblack@google.com  {
8912922Sgabeblack@google.com    assert(phase == tlm::BEGIN_REQ);
9012922Sgabeblack@google.com
9112922Sgabeblack@google.com    // Never blocks, so call b_transport implementation
9212922Sgabeblack@google.com    myBTransport(trans, t);
9312922Sgabeblack@google.com    // LT target
9412922Sgabeblack@google.com    // - always return TLM_COMPLETED
9512922Sgabeblack@google.com    // - not necessary to update phase (if TLM_COMPLETED is returned)
9612922Sgabeblack@google.com    return tlm::TLM_COMPLETED;
9712922Sgabeblack@google.com  }
9812922Sgabeblack@google.com
9912922Sgabeblack@google.com  unsigned int transport_dbg(transaction_type& r)
10012922Sgabeblack@google.com  {
10112922Sgabeblack@google.com    if (r.get_address() >= 400) return 0;
10212922Sgabeblack@google.com
10312922Sgabeblack@google.com    unsigned int tmp = (int)r.get_address();
10412922Sgabeblack@google.com    unsigned int num_bytes;
10512922Sgabeblack@google.com    if (tmp + r.get_data_length() >= 400) {
10612922Sgabeblack@google.com      num_bytes = 400 - tmp;
10712922Sgabeblack@google.com
10812922Sgabeblack@google.com    } else {
10912922Sgabeblack@google.com      num_bytes = r.get_data_length();
11012922Sgabeblack@google.com    }
11112922Sgabeblack@google.com    if (r.is_read()) {
11212922Sgabeblack@google.com      for (unsigned int i = 0; i < num_bytes; ++i) {
11312922Sgabeblack@google.com        r.get_data_ptr()[i] = mMem[i + tmp];
11412922Sgabeblack@google.com      }
11512922Sgabeblack@google.com
11612922Sgabeblack@google.com    } else {
11712922Sgabeblack@google.com      for (unsigned int i = 0; i < num_bytes; ++i) {
11812922Sgabeblack@google.com        mMem[i + tmp] = r.get_data_ptr()[i];
11912922Sgabeblack@google.com      }
12012922Sgabeblack@google.com    }
12112922Sgabeblack@google.com    return num_bytes;
12212922Sgabeblack@google.com  }
12312922Sgabeblack@google.com
12412922Sgabeblack@google.com  bool myGetDMIPtr(transaction_type& trans,
12512922Sgabeblack@google.com                   tlm::tlm_dmi&  dmi_data)
12612922Sgabeblack@google.com  {
12712922Sgabeblack@google.com    sc_dt::uint64 address = trans.get_address();
12812922Sgabeblack@google.com    if (address < 400) {
12912922Sgabeblack@google.com      dmi_data.allow_read_write();
13012922Sgabeblack@google.com      dmi_data.set_start_address(0x0);
13112922Sgabeblack@google.com      dmi_data.set_end_address(399);
13212922Sgabeblack@google.com      dmi_data.set_dmi_ptr(mMem);
13312922Sgabeblack@google.com      dmi_data.set_read_latency(sc_core::sc_time(100, sc_core::SC_NS));
13412922Sgabeblack@google.com      dmi_data.set_write_latency(sc_core::sc_time(10, sc_core::SC_NS));
13512922Sgabeblack@google.com      return true;
13612922Sgabeblack@google.com
13712922Sgabeblack@google.com    } else {
13812922Sgabeblack@google.com      // should not happen
13912922Sgabeblack@google.com      dmi_data.set_start_address(address);
14012922Sgabeblack@google.com      dmi_data.set_end_address(address);
14112922Sgabeblack@google.com      return false;
14212922Sgabeblack@google.com
14312922Sgabeblack@google.com    }
14412922Sgabeblack@google.com  }
14512922Sgabeblack@google.comprivate:
14612922Sgabeblack@google.com  unsigned char mMem[400];
14712922Sgabeblack@google.com};
14812922Sgabeblack@google.com
14912922Sgabeblack@google.com#endif
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