upm/src/relay/relay.cxx
Sisinty Sasmita Patra b266f87450 Relay: Added C source
Signed-off-by: Sisinty Sasmita Patra <sisinty.s.patra@intel.com>
2016-09-14 14:09:09 -07:00

69 lines
2.0 KiB
C++

/*
* Authors: Brendan Le Foll <brendan.le.foll@intel.com>
* Mihai Tudor Panu <mihai.tudor.panu@intel.com>
* Sarah Knepper <sarah.knepper@intel.com>
* 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 <iostream>
#include <string>
#include <stdexcept>
#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;
}