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 __EXPLICIT_AT_TARGET_H__ 2112922Sgabeblack@google.com#define __EXPLICIT_AT_TARGET_H__ 2212922Sgabeblack@google.com 2312922Sgabeblack@google.com#include "tlm.h" 2412922Sgabeblack@google.com#include "tlm_utils/simple_target_socket.h" 2512922Sgabeblack@google.com//#include <systemc> 2612922Sgabeblack@google.com#include <cassert> 2712922Sgabeblack@google.com#include <vector> 2812922Sgabeblack@google.com#include <queue> 2912922Sgabeblack@google.com//#include <iostream> 3012922Sgabeblack@google.com 3112922Sgabeblack@google.comclass ExplicitATTarget : public sc_core::sc_module 3212922Sgabeblack@google.com{ 3312922Sgabeblack@google.compublic: 3412922Sgabeblack@google.com typedef tlm::tlm_generic_payload transaction_type; 3512922Sgabeblack@google.com typedef tlm::tlm_phase phase_type; 3612922Sgabeblack@google.com typedef tlm::tlm_sync_enum sync_enum_type; 3712922Sgabeblack@google.com typedef tlm_utils::simple_target_socket<ExplicitATTarget> 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(ExplicitATTarget); 4412922Sgabeblack@google.com ExplicitATTarget(sc_core::sc_module_name name) : 4512922Sgabeblack@google.com sc_core::sc_module(name), 4612922Sgabeblack@google.com socket("socket"), 4712922Sgabeblack@google.com mCurrentTransaction(0) 4812922Sgabeblack@google.com { 4912922Sgabeblack@google.com // register nb_transport method 5012922Sgabeblack@google.com socket.register_nb_transport_fw(this, &ExplicitATTarget::myNBTransport); 5112922Sgabeblack@google.com socket.register_transport_dbg(this, &ExplicitATTarget::transport_dbg); 5212922Sgabeblack@google.com 5312922Sgabeblack@google.com SC_THREAD(beginResponse) 5412922Sgabeblack@google.com } 5512922Sgabeblack@google.com 5612922Sgabeblack@google.com sync_enum_type myNBTransport(transaction_type& trans, phase_type& phase, sc_core::sc_time& t) 5712922Sgabeblack@google.com { 5812922Sgabeblack@google.com if (phase == tlm::BEGIN_REQ) { 5912922Sgabeblack@google.com sc_dt::uint64 address = trans.get_address(); 6012922Sgabeblack@google.com assert(address < 400); 6112922Sgabeblack@google.com 6212922Sgabeblack@google.com // This target only supports one transaction at a time 6312922Sgabeblack@google.com // This will only work with LT initiators 6412922Sgabeblack@google.com assert(mCurrentTransaction == 0); 6512922Sgabeblack@google.com 6612922Sgabeblack@google.com unsigned int& data = *reinterpret_cast<unsigned int*>(trans.get_data_ptr()); 6712922Sgabeblack@google.com if (trans.get_command() == tlm::TLM_WRITE_COMMAND) { 6812922Sgabeblack@google.com std::cout << name() << ": Received write request: A = 0x" 6912922Sgabeblack@google.com << std::hex << (unsigned int)address << ", D = 0x" << data 7012922Sgabeblack@google.com << std::dec << " @ " << sc_core::sc_time_stamp() 7112922Sgabeblack@google.com << std::endl; 7212922Sgabeblack@google.com 7312922Sgabeblack@google.com *reinterpret_cast<unsigned int*>(&mMem[address]) = data; 7412922Sgabeblack@google.com 7512922Sgabeblack@google.com // Synchronization on demand (eg need to assert an interrupt) 7612922Sgabeblack@google.com mResponseEvent.notify(t); 7712922Sgabeblack@google.com mCurrentTransaction = &trans; 7812922Sgabeblack@google.com 7912922Sgabeblack@google.com // End request phase 8012922Sgabeblack@google.com phase = tlm::END_REQ; 8112922Sgabeblack@google.com return tlm::TLM_UPDATED; 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 8612922Sgabeblack@google.com << std::dec << " @ " << sc_core::sc_time_stamp() 8712922Sgabeblack@google.com << std::endl; 8812922Sgabeblack@google.com 8912922Sgabeblack@google.com data = *reinterpret_cast<unsigned int*>(&mMem[address]); 9012922Sgabeblack@google.com trans.set_response_status(tlm::TLM_OK_RESPONSE); 9112922Sgabeblack@google.com 9212922Sgabeblack@google.com // Finish transaction (use timing annotation) 9312922Sgabeblack@google.com t += sc_core::sc_time(100, sc_core::SC_NS); 9412922Sgabeblack@google.com return tlm::TLM_COMPLETED; 9512922Sgabeblack@google.com } 9612922Sgabeblack@google.com 9712922Sgabeblack@google.com } else if (phase == tlm::END_RESP) { 9812922Sgabeblack@google.com 9912922Sgabeblack@google.com // Transaction finished 10012922Sgabeblack@google.com mCurrentTransaction = 0; 10112922Sgabeblack@google.com return tlm::TLM_COMPLETED; 10212922Sgabeblack@google.com } 10312922Sgabeblack@google.com 10412922Sgabeblack@google.com // Not possible 10512922Sgabeblack@google.com assert(0); exit(1); 10612922Sgabeblack@google.com// return tlm::TLM_COMPLETED; //unreachable code 10712922Sgabeblack@google.com } 10812922Sgabeblack@google.com 10912922Sgabeblack@google.com void beginResponse() 11012922Sgabeblack@google.com { 11112922Sgabeblack@google.com while (true) { 11212922Sgabeblack@google.com // Wait for next synchronization request 11312922Sgabeblack@google.com wait(mResponseEvent); 11412922Sgabeblack@google.com 11512922Sgabeblack@google.com assert(mCurrentTransaction); 11612922Sgabeblack@google.com // start response phase 11712922Sgabeblack@google.com phase_type phase = tlm::BEGIN_RESP; 11812922Sgabeblack@google.com sc_core::sc_time t = sc_core::SC_ZERO_TIME; 11912922Sgabeblack@google.com 12012922Sgabeblack@google.com // Set response data 12112922Sgabeblack@google.com mCurrentTransaction->set_response_status(tlm::TLM_OK_RESPONSE); 12212922Sgabeblack@google.com assert(mCurrentTransaction->get_command() == tlm::TLM_WRITE_COMMAND); 12312922Sgabeblack@google.com 12412922Sgabeblack@google.com sc_dt::uint64 address = mCurrentTransaction->get_address(); 12512922Sgabeblack@google.com assert(address < 400); 12612922Sgabeblack@google.com *reinterpret_cast<unsigned int*>(mCurrentTransaction->get_data_ptr()) = 12712922Sgabeblack@google.com *reinterpret_cast<unsigned int*>(&mMem[address]); 12812922Sgabeblack@google.com 12912922Sgabeblack@google.com // We are synchronized, we can read/write sc_signals, wait,... 13012922Sgabeblack@google.com // Wait before sending the response 13112922Sgabeblack@google.com wait(50, sc_core::SC_NS); 13212922Sgabeblack@google.com 13312922Sgabeblack@google.com if (socket->nb_transport_bw(*mCurrentTransaction, phase, t) == tlm::TLM_COMPLETED) { 13412922Sgabeblack@google.com mCurrentTransaction = 0; 13512922Sgabeblack@google.com 13612922Sgabeblack@google.com } else { 13712922Sgabeblack@google.com // Initiator will call nb_transport(trans, END_RESP, t) 13812922Sgabeblack@google.com } 13912922Sgabeblack@google.com } 14012922Sgabeblack@google.com } 14112922Sgabeblack@google.com 14212922Sgabeblack@google.com unsigned int transport_dbg(transaction_type& r) 14312922Sgabeblack@google.com { 14412922Sgabeblack@google.com if (r.get_address() >= 400) return 0; 14512922Sgabeblack@google.com 14612922Sgabeblack@google.com unsigned int tmp = (int)r.get_address(); 14712922Sgabeblack@google.com unsigned int num_bytes; 14812922Sgabeblack@google.com if (tmp + r.get_data_length() >= 400) { 14912922Sgabeblack@google.com num_bytes = 400 - tmp; 15012922Sgabeblack@google.com 15112922Sgabeblack@google.com } else { 15212922Sgabeblack@google.com num_bytes = r.get_data_length(); 15312922Sgabeblack@google.com } 15412922Sgabeblack@google.com if (!r.is_read() && !r.is_write()) { 15512922Sgabeblack@google.com return 0; 15612922Sgabeblack@google.com } 15712922Sgabeblack@google.com if (r.is_read()) { 15812922Sgabeblack@google.com for (unsigned int i = 0; i < num_bytes; ++i) { 15912922Sgabeblack@google.com r.get_data_ptr()[i] = mMem[i + tmp]; 16012922Sgabeblack@google.com } 16112922Sgabeblack@google.com 16212922Sgabeblack@google.com } else { 16312922Sgabeblack@google.com for (unsigned int i = 0; i < num_bytes; ++i) { 16412922Sgabeblack@google.com mMem[i + tmp] = r.get_data_ptr()[i]; 16512922Sgabeblack@google.com } 16612922Sgabeblack@google.com } 16712922Sgabeblack@google.com return num_bytes; 16812922Sgabeblack@google.com } 16912922Sgabeblack@google.com 17012922Sgabeblack@google.comprivate: 17112922Sgabeblack@google.com unsigned char mMem[400]; 17212922Sgabeblack@google.com sc_core::sc_event mResponseEvent; 17312922Sgabeblack@google.com transaction_type* mCurrentTransaction; 17412922Sgabeblack@google.com}; 17512922Sgabeblack@google.com 17612922Sgabeblack@google.com#endif 177