/* // Copyright (c) 2018 Intel 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. */ #pragma once #include <nlohmann/json.hpp> #include <sdbusplus/bus.hpp> #include <string> #include <vector> // this struct has the gpio config for single gpio struct gpioInfo { int fd; // io fd mapped with the gpio uint32_t number; std::string direction; }; // this struct represents button interface struct buttonConfig { std::string formFactorName; // name of the button interface std::vector<gpioInfo> gpios; // holds single or group gpio config nlohmann::json extraJsonInfo; // corresponding to button interface }; /** * @brief iterates over the list of gpios and configures gpios them * config which is set from gpio defs json file. * The fd of the configured gpio is stored in buttonConfig.gpios container * @return int returns 0 on successful config of all gpios */ int configGroupGpio(buttonConfig& buttonCfg); /** * @brief configures and initializes the single gpio * @return int returns 0 on successful config of all gpios */ int configGpio(gpioInfo& gpioConfig); uint32_t getGpioNum(const std::string& gpioPin); void closeGpio(int fd); // global json object which holds gpio_defs.json configs extern nlohmann::json gpioDefs;