sdrangel/plugins/channelrx/demodadsb/adsbdemodworker.cpp

369 wiersze
12 KiB
C++

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