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84 lines
2.3 KiB
C++
84 lines
2.3 KiB
C++
/*
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* Authors: Brendan Le Foll <brendan.le.foll@intel.com>
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* Mihai Tudor Panu <mihai.tudor.panu@intel.com>
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* Sarah Knepper <sarah.knepper@intel.com>
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* Copyright (c) 2014 - 2016 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <iostream>
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#include <string>
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#include <stdexcept>
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#include "button.hpp"
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using namespace std;
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using namespace upm;
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Button::Button(unsigned int pin)
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{
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if ( !(m_gpio = mraa_gpio_init(pin)) ) {
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throw std::invalid_argument(std::string(__FUNCTION__) +
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": mraa_gpio_init() failed, invalid pin?");
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return;
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}
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mraa_gpio_dir(m_gpio, MRAA_GPIO_IN);
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m_name = "Button Sensor";
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}
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Button::~Button()
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{
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mraa_gpio_close(m_gpio);
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}
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std::string Button::name()
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{
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return m_name;
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}
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int Button::value()
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{
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return mraa_gpio_read(m_gpio);
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}
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#ifdef JAVACALLBACK
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void Button::installISR(mraa::Edge level, jobject runnable)
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{
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installISR(level, mraa_java_isr_callback, runnable);
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}
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#endif
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void Button::installISR(mraa::Edge level, void (*isr)(void *), void *arg)
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{
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if (m_isrInstalled)
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uninstallISR();
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// install our interrupt handler
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mraa_gpio_isr(m_gpio, (mraa_gpio_edge_t) level, isr, arg);
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m_isrInstalled = true;
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}
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void Button::uninstallISR()
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{
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mraa_gpio_isr_exit(m_gpio);
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m_isrInstalled = false;
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}
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