/* * FreeRTOS Kernel V10.0.0 * Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * 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. If you wish to use our Amazon * FreeRTOS name, please do so in a fair use way that does not cause confusion. * * 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. * * http://www.FreeRTOS.org * http://aws.amazon.com/freertos * * 1 tab == 4 spaces! */ #pragma once #include "portmacro_cmsis.h" // TickType_t #include #include #include #include class TimerHandle_t; /* * Defines the prototype to which timer callback functions must conform. */ typedef void (*TimerCallbackFunction_t)( TimerHandle_t xTimer ); struct TimerHandle_t { bool running = false; bool auto_reload = false; SDL_TimerID timer_id = 0; TickType_t xTimerPeriodInTicks; std::string timer_name; void * pvTimerID; TimerCallbackFunction_t pxCallbackFunction; }; constexpr uint32_t pdMS_TO_TICKS(uint32_t ticks) { return ticks; } /** * void *pvTimerGetTimerID( TimerHandle_t xTimer ); * * Returns the ID assigned to the timer. * * IDs are assigned to timers using the pvTimerID parameter of the call to * xTimerCreated() that was used to create the timer, and by calling the * vTimerSetTimerID() API function. * * If the same callback function is assigned to multiple timers then the timer * ID can be used as time specific (timer local) storage. * * @param xTimer The timer being queried. * * @return The ID assigned to the timer being queried. * * Example usage: * * See the xTimerCreate() API function example usage scenario. */ void *pvTimerGetTimerID(const TimerHandle_t &xTimer ); // return pvTimerID from xTimerCreate /** * void vTimerSetTimerID( TimerHandle_t xTimer, void *pvNewID ); * * Sets the ID assigned to the timer. * * IDs are assigned to timers using the pvTimerID parameter of the call to * xTimerCreated() that was used to create the timer. * * If the same callback function is assigned to multiple timers then the timer * ID can be used as time specific (timer local) storage. * * @param xTimer The timer being updated. * * @param pvNewID The ID to assign to the timer. * * Example usage: * * See the xTimerCreate() API function example usage scenario. */ void vTimerSetTimerID(TimerHandle_t &xTimer, void *pvNewID); TimerHandle_t xTimerCreate(const char * const pcTimerName, /*lint !e971 Unqualified char types are allowed for strings and single characters only. */ const TickType_t xTimerPeriodInTicks, const UBaseType_t uxAutoReload, // false=one-shot, true=recurring void * const pvTimerID, // pointer passed to callback TimerCallbackFunction_t pxCallbackFunction); /** * @param xTicksToWait Specifies the time, in ticks, that the calling task should * be held in the Blocked state to wait for the stop command to be successfully * sent to the timer command queue, should the queue already be full when * xTimerStop() was called. xTicksToWait is ignored if xTimerStop() is called * before the scheduler is started. */ bool xTimerStart(TimerHandle_t &xTimer, TickType_t xTicksToWait); /* * xTimerChangePeriod() changes the period of a timer that was previously * created using the xTimerCreate() API function. * * xTimerChangePeriod() can be called to change the period of an active or * dormant state timer. * * The configUSE_TIMERS configuration constant must be set to 1 for * xTimerChangePeriod() to be available. */ bool xTimerChangePeriod(TimerHandle_t &xTimer, TickType_t xNewPeriod, TickType_t xTicksToWait); /** * xTimerReset() re-starts a timer that was previously created using the * xTimerCreate() API function. If the timer had already been started and was * already in the active state, then xTimerReset() will cause the timer to * re-evaluate its expiry time so that it is relative to when xTimerReset() was * called. If the timer was in the dormant state then xTimerReset() has * equivalent functionality to the xTimerStart() API function. * * Resetting a timer ensures the timer is in the active state. If the timer * is not stopped, deleted, or reset in the mean time, the callback function * associated with the timer will get called 'n' ticks after xTimerReset() was * called, where 'n' is the timers defined period. * * It is valid to call xTimerReset() before the scheduler has been started, but * when this is done the timer will not actually start until the scheduler is * started, and the timers expiry time will be relative to when the scheduler is * started, not relative to when xTimerReset() was called. */ bool xTimerReset(TimerHandle_t &xTimer, TickType_t xTicksToWait); bool xTimerStop(TimerHandle_t &xTimer, TickType_t xTicksToWait);