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/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2015-2016 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 "rotaryencoder.hpp"
using namespace upm;
RotaryEncoder::RotaryEncoder(int pinA, int pinB) :
m_rotaryencoder(rotaryencoder_init(pinA, pinB))
{
if (!m_rotaryencoder)
throw std::runtime_error(std::string(__FUNCTION__) +
": rotaryencoder_init failed");
}
RotaryEncoder::~RotaryEncoder()
{
rotaryencoder_close(m_rotaryencoder);
}
void RotaryEncoder::initPosition(int count)
{
rotaryencoder_set_position(m_rotaryencoder, count);
}
int RotaryEncoder::position()
{
return rotaryencoder_get_position(m_rotaryencoder);
}
float RotaryEncoder::getAngle() {
return (float) RotaryEncoder::position() / 20.0 * 360;
}
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