88 lines
3.6 KiB
C++
88 lines
3.6 KiB
C++
/*******************************************************************************
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* Copyright (C) 2018 MINRES Technologies GmbH
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*******************************************************************************/
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#include "sysc/top/terminal.h"
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#include "scc/report.h"
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#include "sysc/sc_comm_singleton.h"
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#include "sysc/tlm_extensions.h"
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using namespace sysc;
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terminal::terminal()
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: terminal(sc_core::sc_gen_unique_name("terminal")) {}
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terminal::terminal(const sc_core::sc_module_name &nm)
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: sc_core::sc_module(nm)
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, NAMED(tx_o)
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, NAMED(rx_i)
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, NAMED(write_to_ws, false) {
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rx_i.register_nb_transport([this](tlm::tlm_signal_gp<sc_dt::sc_logic> &gp, tlm::tlm_phase &phase,
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sc_core::sc_time &delay) -> tlm::tlm_sync_enum {
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this->receive(gp, delay);
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return tlm::TLM_COMPLETED;
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});
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}
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terminal::~terminal() = default;
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void terminal::before_end_of_elaboration() {
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if (write_to_ws.get_value()) {
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SCTRACE() << "Adding WS handler for " << (std::string{"/ws/"} + name());
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handler = std::make_shared<WsHandler>();
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sc_comm_singleton::inst().registerWebSocketHandler((std::string{"/ws/"} + name()).c_str(), handler);
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}
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}
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void terminal::receive(tlm::tlm_signal_gp<sc_dt::sc_logic> &gp, sc_core::sc_time &delay) {
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sysc::tlm_signal_uart_extension *ext;
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gp.get_extension(ext);
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if (ext && ext->start_time != last_tx_start) {
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auto txdata = static_cast<uint8_t>(ext->tx.data);
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last_tx_start = ext->start_time;
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if (txdata != '\r') queue.push_back(txdata);
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if (queue.size() >> 0 && (txdata == '\n' || txdata == 0)) {
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std::string msg(queue.begin(), queue.end() - 1);
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sc_core::sc_time now = sc_core::sc_time_stamp();
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if (handler)
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sysc::sc_comm_singleton::inst().execute([this, msg, now]() {
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std::stringstream os;
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os << R"({"time":")" << now << R"(","message":")" << msg << R"("})";
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this->handler->send(os.str());
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});
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else
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SCINFO(this->name()) << " receive: '" << msg << "'";
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queue.clear();
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}
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}
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}
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