256 lines
11 KiB
C++
256 lines
11 KiB
C++
// SPDX-License-Identifier: GPL-3.0-or-later
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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*
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* Copyright (C) 2013 - 2024, nymea GmbH
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* Copyright (C) 2024 - 2025, chargebyte austria GmbH
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*
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* This file is part of nymea-plugins-modbus.
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*
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* nymea-plugins-modbus 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, either version 3 of the License, or
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* (at your option) any later version.
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*
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* nymea-plugins-modbus 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 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 nymea-plugins-modbus. If not, see <https://www.gnu.org/licenses/>.
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*
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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#include "speedwirediscovery.h"
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#include "extern-plugininfo.h"
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#include "speedwire.h"
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#include <QDataStream>
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SpeedwireDiscovery::SpeedwireDiscovery(NetworkDeviceDiscovery *networkDeviceDiscovery, SpeedwireInterface *speedwireInterface, quint32 localSerialNumber, QObject *parent) :
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QObject(parent),
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m_networkDeviceDiscovery(networkDeviceDiscovery),
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m_speedwireInterface(speedwireInterface),
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m_localSerialNumber(localSerialNumber)
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{
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// More details: https://github.com/RalfOGit/libspeedwire/
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// Request: 534d4100000402a00000000100260010 606509a0 ffffffffffff0000 7d0052be283a0000 000000000180 00020000 00000000 00000000 00000000 => command = 0x00000200, first = 0x00000000; last = 0x00000000; trailer = 0x00000000
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// Response 534d4100000402a000000001004e0010 606513a0 7d0052be283a00c0 7a01842a71b30000 000000000180 01020000 00000000 00000000 00030000 00ff0000 00000000 01007a01 842a71b3 00000a00 0c000000 00000000 00000000 01010000 00000000
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m_multicastSearchRequestTimer.setInterval(1000);
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m_multicastSearchRequestTimer.setSingleShot(false);
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connect(m_speedwireInterface, &SpeedwireInterface::dataReceived, this, &SpeedwireDiscovery::processDatagram);
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connect(&m_multicastSearchRequestTimer, &QTimer::timeout, this, &SpeedwireDiscovery::sendDiscoveryRequest);
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}
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SpeedwireDiscovery::~SpeedwireDiscovery()
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{
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}
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bool SpeedwireDiscovery::startDiscovery()
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{
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if (discoveryRunning())
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return true;
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if (!m_speedwireInterface->available()) {
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qCDebug(dcSma()) << "SpeedwireDiscovery: Failed to start discovery because the speedwire interface is not available.";
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return false;
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}
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// Start clean
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m_results.clear();
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m_networkDeviceInfos.clear();
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startUnicastDiscovery();
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startMulticastDiscovery();
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return true;
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}
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bool SpeedwireDiscovery::discoveryRunning() const
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{
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return m_unicastRunning || m_multicastRunning;
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}
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QList<SpeedwireDiscovery::SpeedwireDiscoveryResult> SpeedwireDiscovery::discoveryResult() const
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{
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return m_results;
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}
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void SpeedwireDiscovery::startMulticastDiscovery()
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{
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qCDebug(dcSma()) << "SpeedwireDiscovery: Start multicast discovery...";
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m_multicastRunning = true;
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m_multicastSearchRequestTimer.start();
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// Start sending multicast messages periodically
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sendDiscoveryRequest();
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}
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void SpeedwireDiscovery::startUnicastDiscovery()
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{
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qCDebug(dcSma()) << "SpeedwireDiscovery: Start discovering network...";
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m_unicastRunning = true;
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NetworkDeviceDiscoveryReply *discoveryReply = m_networkDeviceDiscovery->discover();
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connect(discoveryReply, &NetworkDeviceDiscoveryReply::finished, discoveryReply, &NetworkDeviceDiscoveryReply::deleteLater);
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connect(discoveryReply, &NetworkDeviceDiscoveryReply::hostAddressDiscovered, this, &SpeedwireDiscovery::sendUnicastDiscoveryRequest);
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connect(discoveryReply, &NetworkDeviceDiscoveryReply::finished, this, [this, discoveryReply](){
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qCDebug(dcSma()) << "Discovery finished. Found" << discoveryReply->networkDeviceInfos().length() << "network devices for unicast requests.";
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m_networkDeviceInfos = discoveryReply->networkDeviceInfos();
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// Wait some extra second in otder to give the last hosts joined some time to respond.
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QTimer::singleShot(3000, this, [this](){
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m_multicastSearchRequestTimer.stop();
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m_multicastRunning = false;
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m_unicastRunning = false;
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evaluateDiscoveryFinished();
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});
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});
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}
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void SpeedwireDiscovery::sendUnicastDiscoveryRequest(const QHostAddress &targetHostAddress)
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{
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qCDebug(dcSma()) << "SpeedwireDiscovery: Sent discovery request to unicast address" << targetHostAddress.toString();
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m_speedwireInterface->sendDataUnicast(targetHostAddress, Speedwire::pingRequest(Speedwire::sourceModelId(), m_localSerialNumber));
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}
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void SpeedwireDiscovery::processDatagram(const QHostAddress &senderAddress, quint16 senderPort, const QByteArray &datagram, bool multicast)
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{
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Q_UNUSED(multicast)
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// Check min size of SMA datagrams
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if (datagram.size() < 18) {
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qCDebug(dcSma()) << "SpeedwireDiscovery: Received datagram is to short to be a SMA speedwire message. Ignoring data...";
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return;
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}
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QDataStream stream(datagram);
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Speedwire::Header header = Speedwire::parseHeader(stream);
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if (!header.isValid()) {
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qCWarning(dcSma()) << "SpeedwireDiscovery: Datagram header is not valid. Ignoring data...";
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return;
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}
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qCDebug(dcSma()) << "SpeedwireDiscovery:" << header;
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if (header.protocolId == Speedwire::ProtocolIdDiscoveryResponse) {
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qCDebug(dcSma()) << "SpeedwireDiscovery: Received discovery response from" << QString("%1:%2").arg(senderAddress.toString()).arg(senderPort);
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// "534d4100 0004 02a0 0000 0001 0002 0000 0001 0004 0010 0001 0003 0004 0020 0000 0001 0004 0030 c0a8 b219 0004 0040 0000 0000 0002 0070 ef0c 00000000"
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// "534d4100 0004 02a0 0000 0001 0002 0000 0001 0004 0010 0001 0001 0004 0020 0000 0001 0004 0030 c0a8 b216 0004 0040 0000 0001 00000000"
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if (!datagram.startsWith(Speedwire::discoveryResponseDatagram())) {
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qCWarning(dcSma()) << "SpeedwireDiscovery: Received discovery reply but the message start does not match the required schema. Ignoring data...";
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return;
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}
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qCDebug(dcSma()) << "SpeedwireDiscovery: --> Found SMA device on" << senderAddress.toString();
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return;
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}
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// We received SMA data, let's parse depending on the protocol id
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if (header.protocolId == Speedwire::ProtocolIdMeter) {
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// Example: 010e 714369ae
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quint16 modelId;
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quint32 serialNumber;
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stream >> modelId >> serialNumber;
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qCDebug(dcSma()) << "SpeedwireDiscovery: Meter identifier: Model ID:" << modelId << "Serial number:" << serialNumber;
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if (!m_resultMeters.contains(senderAddress)) {
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SpeedwireDiscoveryResult result;
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result.address = senderAddress;
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result.deviceType = Speedwire::DeviceTypeMeter;
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m_resultMeters.insert(senderAddress, result);
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}
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m_resultMeters[senderAddress].modelId = modelId;
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m_resultMeters[senderAddress].serialNumber = serialNumber;
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} else if (header.protocolId == Speedwire::ProtocolIdInverter) {
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Speedwire::InverterPacket inverterPacket = Speedwire::parseInverterPacket(stream);
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// Response from inverter 534d4100 0004 02a0 0000 0001 004e 0010 6065 1390 7d00 52be283a 0000 b500 c2c12e12 0000 0000 00000 1800102000000000000000000000003000000ff0000ecd5ff1f0100b500c2c12e1200000a000c00000000000000030000000101000000000000
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qCDebug(dcSma()) << "SpeedwireDiscovery:" << inverterPacket;
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if (!m_resultInverters.contains(senderAddress)) {
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SpeedwireDiscoveryResult result;
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result.address = senderAddress;
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result.deviceType = Speedwire::DeviceTypeInverter;
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m_resultInverters.insert(senderAddress, result);
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}
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m_resultInverters[senderAddress].modelId = inverterPacket.sourceModelId;
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m_resultInverters[senderAddress].serialNumber = inverterPacket.sourceSerialNumber;
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// Send the default login request, maybe it activates the Energy meter measurment data streaming
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SpeedwireInverter *inverter = nullptr;
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if (m_inverters.contains(senderAddress)) {
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inverter = m_inverters.value(senderAddress);
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} else {
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inverter = new SpeedwireInverter(m_speedwireInterface, senderAddress, Speedwire::sourceModelId(), m_localSerialNumber, this);
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m_inverters.insert(senderAddress, inverter);
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}
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SpeedwireInverterReply *reply = inverter->sendIdentifyRequest();
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qCDebug(dcSma()) << "SpeedwireDiscovery: Send identify request to" << senderAddress.toString();
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connect(reply, &SpeedwireInverterReply::finished, this, [/*this, inverter,*/ senderAddress, reply](){
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qCDebug(dcSma()) << "SpeedwireDiscovery: Identify request finished from" << senderAddress.toString() << reply->error();
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// SpeedwireInverterReply *loginReply = inverter->sendLoginRequest();
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// qCDebug(dcSma()) << "SpeedwireDiscovery: make login attempt using the default password.";
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// connect(loginReply, &SpeedwireInverterReply::finished, this, [loginReply, senderAddress](){
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// qCDebug(dcSma()) << "SpeedwireDiscovery: login attempt finished" << senderAddress.toString() << loginReply->error();
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// });
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});
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} else {
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qCWarning(dcSma()) << "SpeedwireDiscovery: Unhandled data received" << datagram.toHex();
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return;
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}
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}
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void SpeedwireDiscovery::sendDiscoveryRequest()
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{
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qCDebug(dcSma()) << "SpeedwireDiscovery: Sent discovery request to multicast address" << Speedwire::multicastAddress().toString();
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m_speedwireInterface->sendDataMulticast(Speedwire::discoveryDatagramMulticast());
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}
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void SpeedwireDiscovery::evaluateDiscoveryFinished()
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{
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if (!m_multicastRunning && !m_unicastRunning) {
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finishDiscovery();
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}
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}
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void SpeedwireDiscovery::finishDiscovery()
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{
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m_results = m_resultMeters.values() + m_resultInverters.values();
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// Fill in all network device infos we have
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for (int i = 0; i < m_results.length(); i++)
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m_results[i].networkDeviceInfo = m_networkDeviceInfos.get(m_results.at(i).address);
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qCDebug(dcSma()) << "SpeedwireDiscovery: Discovey finished. Found" << m_results.length() << "SMA devices in the network";
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m_multicastSearchRequestTimer.stop();
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foreach (const SpeedwireDiscoveryResult &result, m_results) {
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qCDebug(dcSma()) << "SpeedwireDiscovery: ============================================";
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qCDebug(dcSma()) << "SpeedwireDiscovery: Device type:" << result.deviceType;
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qCDebug(dcSma()) << "SpeedwireDiscovery: Address:" << result.address.toString();
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qCDebug(dcSma()) << "SpeedwireDiscovery: Model ID:" << result.modelId;
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qCDebug(dcSma()) << "SpeedwireDiscovery: Serial number:" << result.serialNumber;
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if (result.networkDeviceInfo.isValid()) {
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qCDebug(dcSma()) << "SpeedwireDiscovery:" << result.networkDeviceInfo;
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}
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}
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emit discoveryFinished();
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}
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