/**************************************************************************** * * Copyright (c) 2017, Michael Becker (michael.f.becker@gmail.com) * * This file is part of the FreeRTOS Add-ons project. * * Source Code: * https://github.com/michaelbecker/freertos-addons * * Project Page: * http://michaelbecker.github.io/freertos-addons/ * * On-line Documentation: * http://michaelbecker.github.io/freertos-addons/docs/html/index.html * * 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. * + Credit is appreciated, but not required, if you find this project * useful enough to include in your application, product, device, etc. * * 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. * ***************************************************************************/ #ifndef TICKS_HPP_ #define TICKS_HPP_ #include "FreeRTOS.h" #include "task.h" namespace cpp_freertos { /** * Class encapsulating FreeRTOS idea of a tick. */ class Ticks { public: /** * Get the current tick count. * * @return Current tick count. */ static inline TickType_t GetTicks() { return xTaskGetTickCount(); } /** * Get the current tick count from ISR context. * * @return Current tick count. */ static inline TickType_t GetTicksFromISR() { return xTaskGetTickCountFromISR(); } /** * Convert from ticks to ms. * * @param ticks ticks to convert. * @return milliseconds. */ static inline TickType_t TicksToMs(TickType_t ticks) { return ticks * portTICK_PERIOD_MS; } /** * Convert from ms to ticks. * * @param milliseconds milliseconds to convert. * @return ticks */ static inline TickType_t MsToTicks(TickType_t milliseconds) { return milliseconds / portTICK_PERIOD_MS; } /** * Convert from seconds to ticks. * * @param seconds seconds to convert. * @return ticks */ static inline TickType_t SecondsToTicks(TickType_t seconds) { return (seconds * 1000) / portTICK_PERIOD_MS; } }; } #endif