2975bae075
Signed-off-by: Adelin Dobre <adelin.dobre@rinftech.com> Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
105 lines
2.9 KiB
C++
105 lines
2.9 KiB
C++
/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2015 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 <typeinfo>
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#include "upm_string_parser.hpp"
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#include "ad8232.hpp"
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using namespace upm;
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using namespace std;
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static bool operator!(mraa::MraaIo &mraaIo)
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{
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return mraaIo.getMraaDescriptors() == NULL;
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}
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AD8232::AD8232(int loPlus, int loMinus, int output, float aref) {
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m_gpioLOPlus = new mraa::Gpio(loPlus);
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m_gpioLOMinus = new mraa::Gpio(loMinus);
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m_aioOUT = new mraa::Aio(output);
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m_gpioLOPlus->dir(mraa::DIR_IN);
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m_gpioLOMinus->dir(mraa::DIR_IN);
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m_aref = aref;
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m_ares = (1 << m_aioOUT->getBit());
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}
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AD8232::AD8232(std::string initStr) : mraaIo(initStr) {
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if(!mraaIo.gpios.empty()) {
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if(mraaIo.gpios.size() == 2) {
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m_gpioLOPlus = &mraaIo.gpios[0];
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m_gpioLOMinus = &mraaIo.gpios[1];
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}
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else {
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throw std::invalid_argument(std::string(__FUNCTION__) +
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": mraa_gpio_init() must initialize two pins");
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}
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}
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else {
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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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}
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if(!mraaIo.aios.empty()) {
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m_aioOUT = &mraaIo.aios[0];
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}
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else {
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throw std::invalid_argument(std::string(__FUNCTION__) +
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": mraa_aio_init() failed, invalid pin?");
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}
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std::vector<std::string> upmTokens;
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if(!mraaIo.getLeftoverStr().empty()) {
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upmTokens = UpmStringParser::parse(mraaIo.getLeftoverStr());
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}
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for (std::string tok : upmTokens) {
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if(tok.substr(0, 5) == "volt:") {
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m_aref = std::stof(tok.substr(5));
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}
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}
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m_ares = (1 << m_aioOUT->getBit());
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}
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AD8232::~AD8232()
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{
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if(!mraaIo) {
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delete m_gpioLOPlus;
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delete m_gpioLOMinus;
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delete m_aioOUT;
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}
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}
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int AD8232::value()
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{
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if (m_gpioLOPlus->read() || m_gpioLOMinus->read())
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return 0;
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else
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return m_aioOUT->read();
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}
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