com.diozero.internal.provider.wiringpi.WiringPiDigitalOutputDevice Maven / Gradle / Ivy
package com.diozero.internal.provider.wiringpi;
/*
* #%L
* Device I/O Zero - wiringPi provider
* %%
* Copyright (C) 2016 diozero
* %%
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
* #L%
*/
import org.pmw.tinylog.Logger;
import com.diozero.internal.provider.AbstractDevice;
import com.diozero.internal.provider.DeviceFactoryInterface;
import com.diozero.internal.provider.GpioDigitalOutputDeviceInterface;
import com.diozero.util.RuntimeIOException;
import com.pi4j.wiringpi.Gpio;
import com.pi4j.wiringpi.GpioUtil;
public class WiringPiDigitalOutputDevice extends AbstractDevice implements GpioDigitalOutputDeviceInterface {
private int gpio;
WiringPiDigitalOutputDevice(String key, DeviceFactoryInterface deviceFactory, int gpio, boolean initialValue) throws RuntimeIOException {
super(key, deviceFactory);
this.gpio = gpio;
try {
if (GpioUtil.isExported(gpio)) {
GpioUtil.setDirection(gpio, initialValue ? GpioUtil.DIRECTION_HIGH : GpioUtil.DIRECTION_LOW);
} else {
GpioUtil.export(gpio, initialValue ? GpioUtil.DIRECTION_HIGH : GpioUtil.DIRECTION_LOW);
}
Gpio.pinMode(gpio, Gpio.OUTPUT);
} catch (RuntimeException re) {
throw new RuntimeIOException(re);
}
}
@Override
public void closeDevice() {
Logger.debug("closeDevice()");
GpioUtil.unexport(gpio);
}
@Override
public boolean getValue() throws RuntimeIOException {
return Gpio.digitalRead(gpio) == 1;
}
@Override
public void setValue(boolean value) throws RuntimeIOException {
Gpio.digitalWrite(gpio, value);
}
@Override
public int getGpio() {
return gpio;
}
}