mirror of
https://github.com/nymea/nymea-plugins.git
synced 2026-07-17 00:36:35 +02:00
98 lines
3.3 KiB
C++
98 lines
3.3 KiB
C++
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* *
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* Copyright (C) 2018 Simon Stürz <simon.stuerz@guh.io> *
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* *
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* This file is part of nymea. *
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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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#ifndef TOUCHSENSOR_H
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#define TOUCHSENSOR_H
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#include <QObject>
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#include <QThread>
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#include <QMutex>
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#include <QMutexLocker>
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#include "hardware/gpio.h"
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// Registers of CAP1188 capacitive touch sensor (see doc folder for the datasheet)
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#define CAP1188_MAIN 0x00
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#define CAP1188_INPUTSTATUS 0x03
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#define CAP1188_GENERAL_CONFIG 0x20
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#define CAP1188_SENSITIVITY_CONFIG 0x1F
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#define CAP1188_INPUT_ENABLE 0x21
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#define CAP1188_SAMPLING_CONFIG 0x24
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#define CAP1188_MULTITOUCH_CONFIG 0x2A
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#define CAP1188_STANDBY_CONFIG 0x41
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#define CAP1188_CONFIGURATION2 0x44
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#define CAP1188_LED 0x72
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#define CAP1188_LEDPOL 0x73
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#define CAP1188_PROUCT_ID 0xFD
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#define CAP1188_MANUFACTURER_ID 0xFE
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#define CAP1188_REVISION 0xFF
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class TouchSensor : public QThread
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{
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Q_OBJECT
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public:
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explicit TouchSensor(quint8 i2cRegister, int interruptGpio, int resetGpio, QObject *parent = nullptr);
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~TouchSensor();
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private:
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// Sensor wiring
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quint8 m_i2cRegister = 0x28;
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int m_interruptGpioPin = 4;
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int m_resetGpioPin = 17;
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Gpio *m_resetGpio = nullptr;
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quint8 m_currentInputStatus = 0;
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// I2C
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QString m_deviceFile = "/dev/i2c-1";
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int m_i2cDevice = -1;
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// Thread stuff
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QMutex m_stopMutex;
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bool m_stop = false;
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void run() override;
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// Setup methods
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void setupGpios();
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void initializeSensor();
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void cleanUp();
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// I2C methods
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quint8 readRegister(quint8 i2cRegister);
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void writeRegister(quint8 i2cRegister, quint8 value);
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// Sensor methods
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void clearInterrupt();
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void processInputData(quint8 data);
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signals:
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void keyPressedChanged(int key, bool pressed);
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public slots:
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void enableSensor();
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void disableSensor();
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};
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#endif // TOUCHSENSOR_H
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