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/**
* Copyright © 2016 IBM Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <iostream>
#include <string>
#include "argument.hpp"
#include "monitor.hpp"
static void exitWithError(const char* err, char** argv)
{
phosphor::gpio::ArgumentParser::usage(argv);
std::cerr << "ERROR: " << err << "\n";
exit(EXIT_FAILURE);
}
int main(int argc, char** argv)
{
// Read arguments.
auto options = phosphor::gpio::ArgumentParser(argc, argv);
// Parse out path argument.
auto path = (options)["path"];
if (path == phosphor::gpio::ArgumentParser::emptyString)
{
exitWithError("path not specified.", argv);
}
// Parse out key number that we are interested in
// Its integer mapping to the GPIO key configured by the kernel
auto key = (options)["key"];
if (key == phosphor::gpio::ArgumentParser::emptyString)
{
exitWithError("Key not specified.", argv);
}
// Parse out assertion polarity interested in
// Its either 1 or 0 for press / release
auto polarity = (options)["polarity"];
if (polarity == phosphor::gpio::ArgumentParser::emptyString)
{
exitWithError("Polarity not specified.", argv);
}
// Parse out target argument. It is fine if the caller does not
// pass this if they are not interested in calling into any target
// on meeting a condition.
auto target = (options)["target"];
// Create a GPIO monitor object and let it do all the rest
phosphor::gpio::Monitor monitor(path, std::stoi(key),
std::stoi(polarity),target);
return 0;
}
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