1/* 2 * Author: Jon Trulson <jtrulson@ics.com> 3 * Copyright (c) 2014 Intel Corporation. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining 6 * a copy of this software and associated documentation files (the 7 * "Software"), to deal in the Software without restriction, including 8 * without limitation the rights to use, copy, modify, merge, publish, 9 * distribute, sublicense, and/or sell copies of the Software, and to 10 * permit persons to whom the Software is furnished to do so, subject to 11 * the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be 14 * included in all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 20 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 21 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 22 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23 */ 24 25#include <iostream> 26#include <string> 27#include <stdexcept> 28 29#include "a110x.h" 30 31using namespace upm; 32using namespace std; 33 34A110X::A110X(int pin) 35{ 36 if ( !(m_gpio = mraa_gpio_init(pin)) ) 37 { 38 throw std::invalid_argument(std::string(__FUNCTION__) + 39 ": mraa_gpio_init() failed, invalid pin?"); 40 return; 41 } 42 43 mraa_gpio_dir(m_gpio, MRAA_GPIO_IN); 44 m_isrInstalled = false; 45} 46 47A110X::~A110X() 48{ 49 if (m_isrInstalled) 50 uninstallISR(); 51 52 mraa_gpio_close(m_gpio); 53} 54 55bool A110X::magnetDetected() 56{ 57 return (!mraa_gpio_read(m_gpio) ? true : false); 58} 59 60#ifdef JAVACALLBACK 61void A110X::installISR( IsrCallback *cb) 62{ 63installISR(generic_callback_isr, cb); 64} 65#endif 66 67void A110X::installISR(void (*isr)(void *), void *arg) 68{ 69 if (m_isrInstalled) 70 uninstallISR(); 71 72 // install our interrupt handler 73 mraa_gpio_isr(m_gpio, MRAA_GPIO_EDGE_FALLING, 74 isr, arg); 75 m_isrInstalled = true; 76} 77 78void A110X::uninstallISR() 79{ 80 mraa_gpio_isr_exit(m_gpio); 81 m_isrInstalled = false; 82} 83