/* * Authors: Brendan Le Foll * Mihai Tudor Panu * Sarah Knepper * Copyright (c) 2014 - 2016 Intel Corporation. * * 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. */ #include #include #include #include "relay.hpp" using namespace upm; Relay::Relay(unsigned int pin) { if ( !(m_gpio = mraa_gpio_init(pin)) ) { throw std::invalid_argument(std::string(__FUNCTION__) + ": mraa_gpio_init() failed, invalid pin?"); return; } mraa_gpio_dir(m_gpio, MRAA_GPIO_OUT); } Relay::~Relay() { mraa_gpio_close(m_gpio); } mraa_result_t Relay::on() { return mraa_gpio_write(m_gpio, 1); } mraa_result_t Relay::off() { return mraa_gpio_write(m_gpio, 0); } bool Relay::isOn() { return mraa_gpio_read(m_gpio) == 1; } bool Relay::isOff() { return mraa_gpio_read(m_gpio) == 0; }