154 lines
4.4 KiB
C++
154 lines
4.4 KiB
C++
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* *
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* Copyright (C) 2019 Simon Stürz <simon.stuerz@nymea.io> *
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* *
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* This file is part of nymea-gpio. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Lesser General Public *
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* License as published by the Free Software Foundation; either *
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* version 2.1 of the License, or (at your option) any later version. *
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* *
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* This library 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 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 *
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* License along with this library; If not, see *
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* <http://www.gnu.org/licenses/>. *
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* *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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#include "gpiobutton.h"
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GpioButton::GpioButton(int gpioNumber, QObject *parent) :
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QObject(parent),
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m_gpioNumber(gpioNumber)
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{
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}
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int GpioButton::gpioNumber() const
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{
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return m_gpioNumber;
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}
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bool GpioButton::activeLow() const
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{
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return m_activeLow;
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}
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void GpioButton::setActiveLow(bool activeLow)
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{
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m_activeLow = activeLow;
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}
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bool GpioButton::repeateLongPressed() const
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{
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return m_repeateLongPressed;
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}
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void GpioButton::setRepeateLongPressed(bool repeateLongPressed)
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{
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m_repeateLongPressed = repeateLongPressed;
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}
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int GpioButton::longPressedTimeout() const
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{
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return m_longPressedTimeout;
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}
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void GpioButton::setLongPressedTimeout(int longPressedTimeout)
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{
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m_longPressedTimeout = longPressedTimeout;
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}
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QString GpioButton::name() const
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{
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return m_name;
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}
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void GpioButton::setName(const QString &name)
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{
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m_name = name;
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}
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void GpioButton::onTimeout()
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{
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qCDebug(dcGpio()) << this << "long pressed";
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emit longPressed();
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}
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void GpioButton::onInterruptOccured(bool value)
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{
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if (value) {
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// Pressed
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qCDebug(dcGpio()) << this << "pressed";
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emit pressed();
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m_timer->setSingleShot(!m_repeateLongPressed);
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m_timer->start(m_longPressedTimeout);
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m_time.restart();
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} else {
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// Released
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qCDebug(dcGpio()) << this << "released";
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emit released();
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m_timer->stop();
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int duration = m_time.elapsed();
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// Debounce and limit to 500 ms
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if (duration >= 10 && duration <= 500) {
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qCDebug(dcGpio()) << this << "clicked";
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emit clicked();
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}
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}
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}
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bool GpioButton::enable()
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{
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// Make sure we have a clean start
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disable();
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m_monitor = new GpioMonitor(m_gpioNumber, this);
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m_monitor->setEdge(Gpio::EdgeBoth);
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m_monitor->setActiveLow(m_activeLow);
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if (!m_monitor->enable()) {
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qCWarning(dcGpio()) << "Could not enable GPIO monitor for" << this;
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delete m_monitor;
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m_monitor = nullptr;
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return false;
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}
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connect(m_monitor, &GpioMonitor::interruptOccured, this, &GpioButton::onInterruptOccured, Qt::DirectConnection);
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// Setup timer, if this timer reaches timeout, a long pressed happend
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m_timer = new QTimer(this);
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m_timer->setTimerType(Qt::PreciseTimer);
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m_timer->setSingleShot(!m_repeateLongPressed);
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m_timer->setInterval(m_longPressedTimeout);
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connect(m_timer, &QTimer::timeout, this, &GpioButton::onTimeout, Qt::DirectConnection);
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return true;
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}
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void GpioButton::disable()
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{
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if (m_monitor) {
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delete m_monitor;
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m_monitor = nullptr;
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}
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if (m_timer) {
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delete m_timer;
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m_timer = nullptr;
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}
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}
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QDebug operator<<(QDebug debug, GpioButton *gpioButton)
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{
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debug.nospace() << "GpioButton(" << gpioButton->gpioNumber() << ", ";
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debug.nospace() << "name: " << gpioButton->name() << ")";
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return debug.space();
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}
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