93 lines
3.2 KiB
C++
93 lines
3.2 KiB
C++
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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*
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* Copyright 2013 - 2020, nymea GmbH
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* Contact: contact@nymea.io
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*
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* This file is part of nymea.
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* This project including source code and documentation is protected by
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* copyright law, and remains the property of nymea GmbH. All rights, including
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* reproduction, publication, editing and translation, are reserved. The use of
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* this project is subject to the terms of a license agreement to be concluded
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* with nymea GmbH in accordance with the terms of use of nymea GmbH, available
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* under https://nymea.io/license
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*
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* GNU Lesser General Public License Usage
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* Alternatively, this project may be redistributed and/or modified under the
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* terms of the GNU Lesser General Public License as published by the Free
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* Software Foundation; version 3. This project is distributed in the hope that
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* it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this project. If not, see <https://www.gnu.org/licenses/>.
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*
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* For any further details and any questions please contact us under
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* contact@nymea.io or see our FAQ/Licensing Information on
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* https://nymea.io/license/faq
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*
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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#include "w1.h"
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#include "extern-plugininfo.h"
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W1::W1(QObject *parent) :
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QObject(parent)
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{
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}
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QStringList W1::discoverDevices()
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{
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QStringList deviceList;
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QDir w1SysFSDir("/sys/bus/w1/devices/");
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if (!w1SysFSDir.exists()) {
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qCDebug(dcOneWire()) << "W1 kernel not loaded";
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return deviceList;
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}
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w1SysFSDir.setFilter(QDir::Dirs | QDir::NoDotAndDotDot);
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w1SysFSDir.setSorting(QDir::Name);
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QFileInfoList list = w1SysFSDir.entryInfoList();
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for (int i = 0; i < list.size(); ++i) {
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QFileInfo fileInfo = list.at(i);
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if(fileInfo.fileName()[2] == '-') {
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qCDebug(dcOneWire()) << "Found one wire device" << fileInfo.filePath();
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deviceList.append(fileInfo.fileName());
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}
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}
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return deviceList;
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}
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bool W1::interfaceIsAvailable()
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{
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QDir w1SysFSDir("/sys/bus/w1/devices/");
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return w1SysFSDir.exists();
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}
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bool W1::deviceAvailable(const QString &address)
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{
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QDir temperatureSensor("/sys/bus/w1/devices/"+address);
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return temperatureSensor.exists();
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}
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double W1::getTemperature(const QString &address)
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{
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QDir temperatureSensor("/sys/bus/w1/devices/"+address);
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if (temperatureSensor.exists()) {
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QFile temperature(temperatureSensor.path() +"/temperature");
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if (!temperature.exists()) {
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qCWarning(dcOneWire()) << "Directory doesn't exist" << temperature.fileName();
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}
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if (!temperature.open(QIODevice::ReadOnly | QIODevice::Text)){
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qCWarning(dcOneWire()) << "Could not open file" << temperature.fileName();
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return 0;
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}
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return temperature.readLine().toInt()/1000.00;
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} else {
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qCWarning(dcOneWire()) << "Could not find device" << temperatureSensor.currentPath();
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}
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return 0;
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}
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