mirror of
https://github.com/f4exb/sdrangel.git
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368 lines
12 KiB
C++
368 lines
12 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2020 Jon Beniston, M7RCE //
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// Copyright (C) 2020 Edouard Griffiths, F4EXB //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include <QDebug>
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#include <QAbstractSocket>
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#include <QTcpServer>
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#include <QTcpSocket>
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#include <QEventLoop>
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#include <QTimer>
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#include "adsbdemodworker.h"
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#include "adsbdemodreport.h"
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MESSAGE_CLASS_DEFINITION(ADSBDemodWorker::MsgConfigureADSBDemodWorker, Message)
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ADSBBeastServer::ADSBBeastServer()
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{
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}
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void ADSBBeastServer::listen(quint16 port)
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{
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QTcpServer::listen(QHostAddress::Any, port);
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qDebug() << "ADSBBeastServer listening on port " << serverPort();
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}
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void ADSBBeastServer::incomingConnection(qintptr socket)
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{
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qDebug() << "ADSBBeastServer client connected";
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QTcpSocket *s = new QTcpSocket(this);
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connect(s, &QTcpSocket::readyRead, this, &ADSBBeastServer::readClient);
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connect(s, SIGNAL(disconnected()), this, SLOT(discardClient()));
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s->setSocketDescriptor(socket);
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m_clients.append(s);
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}
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void ADSBBeastServer::send(const char *data, int length)
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{
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// Send frame to all clients
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for (auto client : m_clients) {
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client->write(data, length);
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}
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}
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void ADSBBeastServer::close()
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{
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for (auto client : m_clients) {
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client->deleteLater();
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}
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m_clients.clear();
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QTcpServer::close();
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}
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void ADSBBeastServer::readClient()
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{
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QTcpSocket *socket = (QTcpSocket *)sender();
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socket->readAll();
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}
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void ADSBBeastServer::discardClient()
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{
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qDebug() << "ADSBBeastServer client disconnected";
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QTcpSocket *socket = (QTcpSocket*)sender();
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socket->deleteLater();
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m_clients.removeAll(socket);
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}
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ADSBDemodWorker::ADSBDemodWorker() :
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m_running(false)
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{
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connect(&m_heartbeatTimer, SIGNAL(timeout()), this, SLOT(heartbeat()));
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connect(&m_socket, SIGNAL(readyRead()),this, SLOT(recv()));
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connect(&m_socket, SIGNAL(connected()), this, SLOT(connected()));
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connect(&m_socket, SIGNAL(disconnected()), this, SLOT(disconnected()));
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#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
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connect(&m_socket, QOverload<QAbstractSocket::SocketError>::of(&QAbstractSocket::error), this, &ADSBDemodWorker::errorOccurred);
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#else
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connect(&m_socket, &QAbstractSocket::errorOccurred, this, &ADSBDemodWorker::errorOccurred);
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#endif
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m_startTime = QDateTime::currentDateTime().toMSecsSinceEpoch();
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m_heartbeatTimer.start(60*1000);
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}
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ADSBDemodWorker::~ADSBDemodWorker()
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{
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m_inputMessageQueue.clear();
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}
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void ADSBDemodWorker::reset()
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{
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QMutexLocker mutexLocker(&m_mutex);
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m_inputMessageQueue.clear();
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}
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bool ADSBDemodWorker::startWork()
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{
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QMutexLocker mutexLocker(&m_mutex);
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if (m_running) {
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return m_running;
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}
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connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()));
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m_running = true;
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return m_running;
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}
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void ADSBDemodWorker::stopWork()
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{
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QMutexLocker mutexLocker(&m_mutex);
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if (!m_running) {
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return;
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}
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disconnect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()));
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m_running = false;
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}
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void ADSBDemodWorker::handleInputMessages()
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{
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Message* message;
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while ((message = m_inputMessageQueue.pop()) != nullptr)
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{
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if (handleMessage(*message)) {
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delete message;
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}
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}
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}
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bool ADSBDemodWorker::handleMessage(const Message& message)
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{
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if (MsgConfigureADSBDemodWorker::match(message))
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{
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QMutexLocker mutexLocker(&m_mutex);
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MsgConfigureADSBDemodWorker& cfg = (MsgConfigureADSBDemodWorker&) message;
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applySettings(cfg.getSettings(), cfg.getForce());
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return true;
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}
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else if (ADSBDemodReport::MsgReportADSB::match(message))
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{
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ADSBDemodReport::MsgReportADSB& report = (ADSBDemodReport::MsgReportADSB&) message;
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handleADSB(report.getData(), report.getDateTime(), report.getPreambleCorrelation());
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return true;
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}
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else
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{
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return false;
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}
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}
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void ADSBDemodWorker::applySettings(const ADSBDemodSettings& settings, bool force)
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{
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qDebug() << "ADSBDemodWorker::applySettings:"
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<< " m_feedEnabled: " << settings.m_feedEnabled
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<< " m_exportClientEnabled: " << settings.m_exportClientEnabled
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<< " m_exportClientHost: " << settings.m_exportClientHost
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<< " m_exportClientPort: " << settings.m_exportClientPort
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<< " m_exportClientFormat: " << settings.m_exportClientFormat
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<< " m_exportServerEnabled: " << settings.m_exportServerEnabled
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<< " m_exportServerPort: " << settings.m_exportServerPort
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<< " m_logEnabled: " << settings.m_logEnabled
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<< " m_logFilename: " << settings.m_logFilename
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<< " force: " << force;
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if ((settings.m_feedEnabled != m_settings.m_feedEnabled)
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|| (settings.m_exportClientEnabled != m_settings.m_exportClientEnabled)
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|| (settings.m_exportClientHost != m_settings.m_exportClientHost)
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|| (settings.m_exportClientPort != m_settings.m_exportClientPort)
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|| force)
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{
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// Close any existing connection
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if (m_socket.isOpen()) {
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m_socket.close();
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}
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// Open connection
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if (settings.m_feedEnabled && settings.m_exportClientEnabled) {
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m_socket.connectToHost(settings.m_exportClientHost, settings.m_exportClientPort);
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}
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}
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if ((settings.m_feedEnabled != m_settings.m_feedEnabled)
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|| (settings.m_exportServerEnabled != m_settings.m_exportServerEnabled)
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|| (settings.m_exportServerPort != m_settings.m_exportServerPort)
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|| force)
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{
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if (m_beastServer.isListening()) {
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m_beastServer.close();
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}
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if (settings.m_feedEnabled && settings.m_exportServerEnabled) {
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m_beastServer.listen(settings.m_exportServerPort);
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}
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}
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if ((settings.m_logEnabled != m_settings.m_logEnabled)
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|| (settings.m_logFilename != m_settings.m_logFilename)
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|| force)
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{
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if (m_logFile.isOpen())
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{
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m_logStream.flush();
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m_logFile.close();
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}
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if (settings.m_logEnabled && !settings.m_logFilename.isEmpty())
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{
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m_logFile.setFileName(settings.m_logFilename);
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if (m_logFile.open(QIODevice::WriteOnly | QIODevice::Append | QIODevice::Text))
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{
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qDebug() << "ADSBDemodWorker::applySettings - Logging to: " << settings.m_logFilename;
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bool newFile = m_logFile.size() == 0;
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m_logStream.setDevice(&m_logFile);
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if (newFile)
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{
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// Write header
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m_logStream << "Date,Time,Data,Correlation\n";
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}
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}
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else
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{
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qDebug() << "ADSBDemodWorker::applySettings - Unable to open log file: " << settings.m_logFilename;
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}
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}
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}
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m_settings = settings;
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}
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void ADSBDemodWorker::connected()
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{
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qDebug() << "ADSBDemodWorker::connected " << m_settings.m_exportClientHost;
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}
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void ADSBDemodWorker::disconnected()
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{
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qDebug() << "ADSBDemodWorker::disconnected";
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}
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void ADSBDemodWorker::errorOccurred(QAbstractSocket::SocketError socketError)
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{
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qDebug() << "ADSBDemodWorker::errorOccurred: " << socketError;
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}
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void ADSBDemodWorker::recv()
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{
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// Not expecting to receiving anything from server
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qDebug() << "ADSBDemodWorker::recv";
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qDebug() << m_socket.readAll();
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}
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void ADSBDemodWorker::send(const char *data, int length)
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{
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if (m_settings.m_feedEnabled && m_settings.m_exportClientEnabled)
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{
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// Reopen connection if it was lost
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if (!m_socket.isOpen()) {
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m_socket.connectToHost(m_settings.m_exportClientHost, m_settings.m_exportClientPort);
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}
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// Send data
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m_socket.write(data, length);
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}
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}
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#define BEAST_ESC 0x1a
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char *ADSBDemodWorker::escape(char *p, char c)
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{
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*p++ = c;
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if (c == BEAST_ESC) {
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*p++ = BEAST_ESC;
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}
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return p;
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}
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// Forward ADS-B data in Beast binary format to specified server
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// See: https://wiki.jetvision.de/wiki/Mode-S_Beast:Data_Output_Formats
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// Log to .csv file
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void ADSBDemodWorker::handleADSB(QByteArray data, const QDateTime dateTime, float correlation)
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{
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if (m_logFile.isOpen()) {
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m_logStream << dateTime.date().toString() << "," << dateTime.time().toString() << "," << data.toHex() << "," << correlation << "\n";
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}
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if (m_settings.m_feedEnabled && (m_settings.m_exportClientEnabled || m_settings.m_exportServerEnabled))
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{
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if ((m_settings.m_exportClientEnabled && (m_settings.m_exportClientFormat == ADSBDemodSettings::BeastBinary))
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|| m_settings.m_exportServerEnabled)
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{
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char beastBinary[2+6*2+1*2+14*2];
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int length;
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char *p = beastBinary;
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qint64 timestamp;
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unsigned char signalStrength;
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// Timestamp seems to be 12MHz ticks since device started
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timestamp = (dateTime.toMSecsSinceEpoch() - m_startTime) * 12000;
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if (correlation > 255) {
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signalStrength = 255;
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} else if (correlation < 1) {
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signalStrength = 1;
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} else {
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signalStrength = (unsigned char)correlation;
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}
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*p++ = BEAST_ESC;
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*p++ = '3'; // Mode-S long
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p = escape(p, timestamp >> 48); // Big-endian timestamp
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p = escape(p, timestamp >> 32);
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p = escape(p, timestamp >> 24);
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p = escape(p, timestamp >> 16);
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p = escape(p, timestamp >> 8);
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p = escape(p, timestamp);
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p = escape(p, signalStrength); // Signal strength
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for (int i = 0; i < data.length(); i++) { // ADS-B data
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p = escape(p, data[i]);
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}
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length = p - beastBinary;
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if ((m_settings.m_exportClientEnabled) && (m_settings.m_exportClientFormat == ADSBDemodSettings::BeastBinary)) {
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send(beastBinary, length);
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}
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if (m_settings.m_exportServerEnabled) {
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m_beastServer.send(beastBinary, length);
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}
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}
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if (m_settings.m_exportClientEnabled && (m_settings.m_exportClientFormat == ADSBDemodSettings::BeastHex))
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{
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QString beastHex = "*" + data.toHex() + ";\n";
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send(beastHex.toUtf8(), beastHex.size());
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}
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}
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}
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// Periodically send heartbeat to keep connection alive
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void ADSBDemodWorker::heartbeat()
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{
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if (m_running)
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{
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const char heartbeat[] = {BEAST_ESC, '1', 0, 0, 0, 0, 0, 0, 0, 0, 0}; // Mode AC packet
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if (m_settings.m_exportClientEnabled) {
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send(heartbeat, sizeof(heartbeat));
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}
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if (m_settings.m_exportServerEnabled) {
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m_beastServer.send(heartbeat, sizeof(heartbeat));
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}
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}
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}
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