mirror of
				https://github.com/espressif/esp-idf.git
				synced 2025-10-28 05:31:44 +01:00 
			
		
		
		
	This commit reverts the previous "taskENTER_CRTIICAL();" so that the argument is now provided for better code readability. The names of the spinlocks have also been updated.
		
			
				
	
	
		
			1178 lines
		
	
	
		
			51 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			1178 lines
		
	
	
		
			51 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
 | |
|  * SPDX-FileCopyrightText: 2020 Amazon.com, Inc. or its affiliates
 | |
|  *
 | |
|  * SPDX-License-Identifier: MIT
 | |
|  *
 | |
|  * SPDX-FileContributor: 2016-2022 Espressif Systems (Shanghai) CO LTD
 | |
|  */
 | |
| /*
 | |
|  * FreeRTOS Kernel V10.4.3
 | |
|  * Copyright (C) 2020 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.
 | |
|  *
 | |
|  * 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.
 | |
|  *
 | |
|  * https://www.FreeRTOS.org
 | |
|  * https://github.com/FreeRTOS
 | |
|  *
 | |
|  */
 | |
| 
 | |
| /* Standard includes. */
 | |
| #include <stdlib.h>
 | |
| 
 | |
| /* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining
 | |
|  * all the API functions to use the MPU wrappers.  That should only be done when
 | |
|  * task.h is included from an application file. */
 | |
| #define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
 | |
| 
 | |
| #include "FreeRTOS.h"
 | |
| #include "task.h"
 | |
| #include "queue.h"
 | |
| #include "timers.h"
 | |
| 
 | |
| #if ( INCLUDE_xTimerPendFunctionCall == 1 ) && ( configUSE_TIMERS == 0 )
 | |
|     #error configUSE_TIMERS must be set to 1 to make the xTimerPendFunctionCall() function available.
 | |
| #endif
 | |
| 
 | |
| /* Lint e9021, e961 and e750 are suppressed as a MISRA exception justified
 | |
|  * because the MPU ports require MPU_WRAPPERS_INCLUDED_FROM_API_FILE to be defined
 | |
|  * for the header files above, but not in this file, in order to generate the
 | |
|  * correct privileged Vs unprivileged linkage and placement. */
 | |
| #undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE /*lint !e9021 !e961 !e750. */
 | |
| 
 | |
| 
 | |
| /* This entire source file will be skipped if the application is not configured
 | |
|  * to include software timer functionality.  This #if is closed at the very bottom
 | |
|  * of this file.  If you want to include software timer functionality then ensure
 | |
|  * configUSE_TIMERS is set to 1 in FreeRTOSConfig.h. */
 | |
| #if ( configUSE_TIMERS == 1 )
 | |
| 
 | |
| /* Misc definitions. */
 | |
|     #define tmrNO_DELAY    ( TickType_t ) 0U
 | |
| 
 | |
| /* The name assigned to the timer service task.  This can be overridden by
 | |
|  * defining trmTIMER_SERVICE_TASK_NAME in FreeRTOSConfig.h. */
 | |
|     #ifndef configTIMER_SERVICE_TASK_NAME
 | |
|         #define configTIMER_SERVICE_TASK_NAME    "Tmr Svc"
 | |
|     #endif
 | |
| 
 | |
| /* Bit definitions used in the ucStatus member of a timer structure. */
 | |
|     #define tmrSTATUS_IS_ACTIVE                  ( ( uint8_t ) 0x01 )
 | |
|     #define tmrSTATUS_IS_STATICALLY_ALLOCATED    ( ( uint8_t ) 0x02 )
 | |
|     #define tmrSTATUS_IS_AUTORELOAD              ( ( uint8_t ) 0x04 )
 | |
| 
 | |
| /* The definition of the timers themselves. */
 | |
|     typedef struct tmrTimerControl                  /* The old naming convention is used to prevent breaking kernel aware debuggers. */
 | |
|     {
 | |
|         const char * pcTimerName;                   /*<< Text name.  This is not used by the kernel, it is included simply to make debugging easier. */ /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
 | |
|         ListItem_t xTimerListItem;                  /*<< Standard linked list item as used by all kernel features for event management. */
 | |
|         TickType_t xTimerPeriodInTicks;             /*<< How quickly and often the timer expires. */
 | |
|         void * pvTimerID;                           /*<< An ID to identify the timer.  This allows the timer to be identified when the same callback is used for multiple timers. */
 | |
|         TimerCallbackFunction_t pxCallbackFunction; /*<< The function that will be called when the timer expires. */
 | |
|         #if ( configUSE_TRACE_FACILITY == 1 )
 | |
|             UBaseType_t uxTimerNumber;              /*<< An ID assigned by trace tools such as FreeRTOS+Trace */
 | |
|         #endif
 | |
|         uint8_t ucStatus;                           /*<< Holds bits to say if the timer was statically allocated or not, and if it is active or not. */
 | |
|     } xTIMER;
 | |
| 
 | |
| /* The old xTIMER name is maintained above then typedefed to the new Timer_t
 | |
|  * name below to enable the use of older kernel aware debuggers. */
 | |
|     typedef xTIMER Timer_t;
 | |
| 
 | |
| /* The definition of messages that can be sent and received on the timer queue.
 | |
|  * Two types of message can be queued - messages that manipulate a software timer,
 | |
|  * and messages that request the execution of a non-timer related callback.  The
 | |
|  * two message types are defined in two separate structures, xTimerParametersType
 | |
|  * and xCallbackParametersType respectively. */
 | |
|     typedef struct tmrTimerParameters
 | |
|     {
 | |
|         TickType_t xMessageValue; /*<< An optional value used by a subset of commands, for example, when changing the period of a timer. */
 | |
|         Timer_t * pxTimer;        /*<< The timer to which the command will be applied. */
 | |
|     } TimerParameter_t;
 | |
| 
 | |
| 
 | |
|     typedef struct tmrCallbackParameters
 | |
|     {
 | |
|         PendedFunction_t pxCallbackFunction; /* << The callback function to execute. */
 | |
|         void * pvParameter1;                 /* << The value that will be used as the callback functions first parameter. */
 | |
|         uint32_t ulParameter2;               /* << The value that will be used as the callback functions second parameter. */
 | |
|     } CallbackParameters_t;
 | |
| 
 | |
| /* The structure that contains the two message types, along with an identifier
 | |
|  * that is used to determine which message type is valid. */
 | |
|     typedef struct tmrTimerQueueMessage
 | |
|     {
 | |
|         BaseType_t xMessageID; /*<< The command being sent to the timer service task. */
 | |
|         union
 | |
|         {
 | |
|             TimerParameter_t xTimerParameters;
 | |
| 
 | |
|             /* Don't include xCallbackParameters if it is not going to be used as
 | |
|              * it makes the structure (and therefore the timer queue) larger. */
 | |
|             #if ( INCLUDE_xTimerPendFunctionCall == 1 )
 | |
|                 CallbackParameters_t xCallbackParameters;
 | |
|             #endif /* INCLUDE_xTimerPendFunctionCall */
 | |
|         } u;
 | |
|     } DaemonTaskMessage_t;
 | |
| 
 | |
| /*lint -save -e956 A manual analysis and inspection has been used to determine
 | |
|  * which static variables must be declared volatile. */
 | |
| 
 | |
| /* The list in which active timers are stored.  Timers are referenced in expire
 | |
|  * time order, with the nearest expiry time at the front of the list.  Only the
 | |
|  * timer service task is allowed to access these lists.
 | |
|  * xActiveTimerList1 and xActiveTimerList2 could be at function scope but that
 | |
|  * breaks some kernel aware debuggers, and debuggers that reply on removing the
 | |
|  * static qualifier. */
 | |
|     PRIVILEGED_DATA static List_t xActiveTimerList1;
 | |
|     PRIVILEGED_DATA static List_t xActiveTimerList2;
 | |
|     PRIVILEGED_DATA static List_t * pxCurrentTimerList;
 | |
|     PRIVILEGED_DATA static List_t * pxOverflowTimerList;
 | |
| 
 | |
| /* A queue that is used to send commands to the timer service task. */
 | |
|     PRIVILEGED_DATA static QueueHandle_t xTimerQueue = NULL;
 | |
|     PRIVILEGED_DATA static TaskHandle_t xTimerTaskHandle = NULL;
 | |
| 
 | |
| #ifdef ESP_PLATFORM
 | |
| /* Spinlock required in SMP when accessing the timers. For now we use a single lock
 | |
|  * Todo: Each timer could possible have its own lock for increased granularity. */
 | |
| PRIVILEGED_DATA portMUX_TYPE xTimerLock = portMUX_INITIALIZER_UNLOCKED;
 | |
| #endif // ESP_PLATFORM
 | |
| 
 | |
| /*lint -restore */
 | |
| 
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
| /*
 | |
|  * Initialise the infrastructure used by the timer service task if it has not
 | |
|  * been initialised already.
 | |
|  */
 | |
|     static void prvCheckForValidListAndQueue( void ) PRIVILEGED_FUNCTION;
 | |
| 
 | |
| /*
 | |
|  * The timer service task (daemon).  Timer functionality is controlled by this
 | |
|  * task.  Other tasks communicate with the timer service task using the
 | |
|  * xTimerQueue queue.
 | |
|  */
 | |
|     static portTASK_FUNCTION_PROTO( prvTimerTask, pvParameters ) PRIVILEGED_FUNCTION;
 | |
| 
 | |
| /*
 | |
|  * Called by the timer service task to interpret and process a command it
 | |
|  * received on the timer queue.
 | |
|  */
 | |
|     static void prvProcessReceivedCommands( void ) PRIVILEGED_FUNCTION;
 | |
| 
 | |
| /*
 | |
|  * Insert the timer into either xActiveTimerList1, or xActiveTimerList2,
 | |
|  * depending on if the expire time causes a timer counter overflow.
 | |
|  */
 | |
|     static BaseType_t prvInsertTimerInActiveList( Timer_t * const pxTimer,
 | |
|                                                   const TickType_t xNextExpiryTime,
 | |
|                                                   const TickType_t xTimeNow,
 | |
|                                                   const TickType_t xCommandTime ) PRIVILEGED_FUNCTION;
 | |
| 
 | |
| /*
 | |
|  * An active timer has reached its expire time.  Reload the timer if it is an
 | |
|  * auto-reload timer, then call its callback.
 | |
|  */
 | |
|     static void prvProcessExpiredTimer( const TickType_t xNextExpireTime,
 | |
|                                         const TickType_t xTimeNow ) PRIVILEGED_FUNCTION;
 | |
| 
 | |
| /*
 | |
|  * The tick count has overflowed.  Switch the timer lists after ensuring the
 | |
|  * current timer list does not still reference some timers.
 | |
|  */
 | |
|     static void prvSwitchTimerLists( void ) PRIVILEGED_FUNCTION;
 | |
| 
 | |
| /*
 | |
|  * Obtain the current tick count, setting *pxTimerListsWereSwitched to pdTRUE
 | |
|  * if a tick count overflow occurred since prvSampleTimeNow() was last called.
 | |
|  */
 | |
|     static TickType_t prvSampleTimeNow( BaseType_t * const pxTimerListsWereSwitched ) PRIVILEGED_FUNCTION;
 | |
| 
 | |
| /*
 | |
|  * If the timer list contains any active timers then return the expire time of
 | |
|  * the timer that will expire first and set *pxListWasEmpty to false.  If the
 | |
|  * timer list does not contain any timers then return 0 and set *pxListWasEmpty
 | |
|  * to pdTRUE.
 | |
|  */
 | |
|     static TickType_t prvGetNextExpireTime( BaseType_t * const pxListWasEmpty ) PRIVILEGED_FUNCTION;
 | |
| 
 | |
| /*
 | |
|  * If a timer has expired, process it.  Otherwise, block the timer service task
 | |
|  * until either a timer does expire or a command is received.
 | |
|  */
 | |
|     static void prvProcessTimerOrBlockTask( const TickType_t xNextExpireTime,
 | |
|                                             BaseType_t xListWasEmpty ) PRIVILEGED_FUNCTION;
 | |
| 
 | |
| /*
 | |
|  * Called after a Timer_t structure has been allocated either statically or
 | |
|  * dynamically to fill in the structure's members.
 | |
|  */
 | |
|     static void prvInitialiseNewTimer( 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,
 | |
|                                        void * const pvTimerID,
 | |
|                                        TimerCallbackFunction_t pxCallbackFunction,
 | |
|                                        Timer_t * pxNewTimer ) PRIVILEGED_FUNCTION;
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     BaseType_t xTimerCreateTimerTask( void )
 | |
|     {
 | |
|         BaseType_t xReturn = pdFAIL;
 | |
| 
 | |
|         /* This function is called when the scheduler is started if
 | |
|          * configUSE_TIMERS is set to 1.  Check that the infrastructure used by the
 | |
|          * timer service task has been created/initialised.  If timers have already
 | |
|          * been created then the initialisation will already have been performed. */
 | |
|         prvCheckForValidListAndQueue();
 | |
| 
 | |
|         if( xTimerQueue != NULL )
 | |
|         {
 | |
|             #if ( configSUPPORT_STATIC_ALLOCATION == 1 )
 | |
|                 {
 | |
|                     StaticTask_t * pxTimerTaskTCBBuffer = NULL;
 | |
|                     StackType_t * pxTimerTaskStackBuffer = NULL;
 | |
|                     uint32_t ulTimerTaskStackSize;
 | |
| 
 | |
|                     vApplicationGetTimerTaskMemory( &pxTimerTaskTCBBuffer, &pxTimerTaskStackBuffer, &ulTimerTaskStackSize );
 | |
|                     xTimerTaskHandle = xTaskCreateStaticPinnedToCore(   prvTimerTask,
 | |
|                                                           configTIMER_SERVICE_TASK_NAME,
 | |
|                                                           ulTimerTaskStackSize,
 | |
|                                                           NULL,
 | |
|                                                           ( ( UBaseType_t ) configTIMER_TASK_PRIORITY ) | portPRIVILEGE_BIT,
 | |
|                                                           pxTimerTaskStackBuffer,
 | |
|                                                           pxTimerTaskTCBBuffer,
 | |
|                                                           0 );
 | |
| 
 | |
|                     if( xTimerTaskHandle != NULL )
 | |
|                     {
 | |
|                         xReturn = pdPASS;
 | |
|                     }
 | |
|                 }
 | |
|             #else /* if ( configSUPPORT_STATIC_ALLOCATION == 1 ) */
 | |
|                 {
 | |
|                     xReturn = xTaskCreatePinnedToCore( prvTimerTask,
 | |
|                                            configTIMER_SERVICE_TASK_NAME,
 | |
|                                            configTIMER_TASK_STACK_DEPTH,
 | |
|                                            NULL,
 | |
|                                            ( ( UBaseType_t ) configTIMER_TASK_PRIORITY ) | portPRIVILEGE_BIT,
 | |
|                                            &xTimerTaskHandle, 0 );
 | |
|                 }
 | |
|             #endif /* configSUPPORT_STATIC_ALLOCATION */
 | |
|         }
 | |
|         else
 | |
|         {
 | |
|             mtCOVERAGE_TEST_MARKER();
 | |
|         }
 | |
| 
 | |
|         configASSERT( xReturn );
 | |
|         return xReturn;
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     #if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 )
 | |
| 
 | |
|         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,
 | |
|                                     void * const pvTimerID,
 | |
|                                     TimerCallbackFunction_t pxCallbackFunction )
 | |
|         {
 | |
|             Timer_t * pxNewTimer;
 | |
| 
 | |
|             pxNewTimer = ( Timer_t * ) pvPortMalloc( sizeof( Timer_t ) ); /*lint !e9087 !e9079 All values returned by pvPortMalloc() have at least the alignment required by the MCU's stack, and the first member of Timer_t is always a pointer to the timer's mame. */
 | |
| 
 | |
|             if( pxNewTimer != NULL )
 | |
|             {
 | |
|                 /* Status is thus far zero as the timer is not created statically
 | |
|                  * and has not been started.  The auto-reload bit may get set in
 | |
|                  * prvInitialiseNewTimer. */
 | |
|                 pxNewTimer->ucStatus = 0x00;
 | |
|                 prvInitialiseNewTimer( pcTimerName, xTimerPeriodInTicks, uxAutoReload, pvTimerID, pxCallbackFunction, pxNewTimer );
 | |
|             }
 | |
| 
 | |
|             return pxNewTimer;
 | |
|         }
 | |
| 
 | |
|     #endif /* configSUPPORT_DYNAMIC_ALLOCATION */
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     #if ( configSUPPORT_STATIC_ALLOCATION == 1 )
 | |
| 
 | |
|         TimerHandle_t xTimerCreateStatic( 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,
 | |
|                                           void * const pvTimerID,
 | |
|                                           TimerCallbackFunction_t pxCallbackFunction,
 | |
|                                           StaticTimer_t * pxTimerBuffer )
 | |
|         {
 | |
|             Timer_t * pxNewTimer;
 | |
| 
 | |
|             #if ( configASSERT_DEFINED == 1 )
 | |
|                 {
 | |
|                     /* Sanity check that the size of the structure used to declare a
 | |
|                      * variable of type StaticTimer_t equals the size of the real timer
 | |
|                      * structure. */
 | |
|                     volatile size_t xSize = sizeof( StaticTimer_t );
 | |
|                     configASSERT( xSize == sizeof( Timer_t ) );
 | |
|                     ( void ) xSize; /* Keeps lint quiet when configASSERT() is not defined. */
 | |
|                 }
 | |
|             #endif /* configASSERT_DEFINED */
 | |
| 
 | |
|             /* A pointer to a StaticTimer_t structure MUST be provided, use it. */
 | |
|             configASSERT( pxTimerBuffer );
 | |
|             pxNewTimer = ( Timer_t * ) pxTimerBuffer; /*lint !e740 !e9087 StaticTimer_t is a pointer to a Timer_t, so guaranteed to be aligned and sized correctly (checked by an assert()), so this is safe. */
 | |
| 
 | |
|             if( pxNewTimer != NULL )
 | |
|             {
 | |
|                 /* Timers can be created statically or dynamically so note this
 | |
|                  * timer was created statically in case it is later deleted.  The
 | |
|                  * auto-reload bit may get set in prvInitialiseNewTimer(). */
 | |
|                 pxNewTimer->ucStatus = tmrSTATUS_IS_STATICALLY_ALLOCATED;
 | |
| 
 | |
|                 prvInitialiseNewTimer( pcTimerName, xTimerPeriodInTicks, uxAutoReload, pvTimerID, pxCallbackFunction, pxNewTimer );
 | |
|             }
 | |
| 
 | |
|             return pxNewTimer;
 | |
|         }
 | |
| 
 | |
|     #endif /* configSUPPORT_STATIC_ALLOCATION */
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     static void prvInitialiseNewTimer( 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,
 | |
|                                        void * const pvTimerID,
 | |
|                                        TimerCallbackFunction_t pxCallbackFunction,
 | |
|                                        Timer_t * pxNewTimer )
 | |
|     {
 | |
|         /* 0 is not a valid value for xTimerPeriodInTicks. */
 | |
|         configASSERT( ( xTimerPeriodInTicks > 0 ) );
 | |
| 
 | |
|         if( pxNewTimer != NULL )
 | |
|         {
 | |
|             /* Ensure the infrastructure used by the timer service task has been
 | |
|              * created/initialised. */
 | |
|             prvCheckForValidListAndQueue();
 | |
| 
 | |
|             /* Initialise the timer structure members using the function
 | |
|              * parameters. */
 | |
|             pxNewTimer->pcTimerName = pcTimerName;
 | |
|             pxNewTimer->xTimerPeriodInTicks = xTimerPeriodInTicks;
 | |
|             pxNewTimer->pvTimerID = pvTimerID;
 | |
|             pxNewTimer->pxCallbackFunction = pxCallbackFunction;
 | |
|             vListInitialiseItem( &( pxNewTimer->xTimerListItem ) );
 | |
| 
 | |
|             if( uxAutoReload != pdFALSE )
 | |
|             {
 | |
|                 pxNewTimer->ucStatus |= tmrSTATUS_IS_AUTORELOAD;
 | |
|             }
 | |
| 
 | |
|             traceTIMER_CREATE( pxNewTimer );
 | |
|         }
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     BaseType_t xTimerGenericCommand( TimerHandle_t xTimer,
 | |
|                                      const BaseType_t xCommandID,
 | |
|                                      const TickType_t xOptionalValue,
 | |
|                                      BaseType_t * const pxHigherPriorityTaskWoken,
 | |
|                                      const TickType_t xTicksToWait )
 | |
|     {
 | |
|         BaseType_t xReturn = pdFAIL;
 | |
|         DaemonTaskMessage_t xMessage;
 | |
| 
 | |
|         configASSERT( xTimer );
 | |
| 
 | |
|         /* Send a message to the timer service task to perform a particular action
 | |
|          * on a particular timer definition. */
 | |
|         if( xTimerQueue != NULL )
 | |
|         {
 | |
|             /* Send a command to the timer service task to start the xTimer timer. */
 | |
|             xMessage.xMessageID = xCommandID;
 | |
|             xMessage.u.xTimerParameters.xMessageValue = xOptionalValue;
 | |
|             xMessage.u.xTimerParameters.pxTimer = xTimer;
 | |
| 
 | |
|             if( xCommandID < tmrFIRST_FROM_ISR_COMMAND )
 | |
|             {
 | |
|                 if( xTaskGetSchedulerState() == taskSCHEDULER_RUNNING )
 | |
|                 {
 | |
|                     xReturn = xQueueSendToBack( xTimerQueue, &xMessage, xTicksToWait );
 | |
|                 }
 | |
|                 else
 | |
|                 {
 | |
|                     xReturn = xQueueSendToBack( xTimerQueue, &xMessage, tmrNO_DELAY );
 | |
|                 }
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 xReturn = xQueueSendToBackFromISR( xTimerQueue, &xMessage, pxHigherPriorityTaskWoken );
 | |
|             }
 | |
| 
 | |
|             traceTIMER_COMMAND_SEND( xTimer, xCommandID, xOptionalValue, xReturn );
 | |
|         }
 | |
|         else
 | |
|         {
 | |
|             mtCOVERAGE_TEST_MARKER();
 | |
|         }
 | |
| 
 | |
|         return xReturn;
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     TaskHandle_t xTimerGetTimerDaemonTaskHandle( void )
 | |
|     {
 | |
|         /* If xTimerGetTimerDaemonTaskHandle() is called before the scheduler has been
 | |
|          * started, then xTimerTaskHandle will be NULL. */
 | |
|         configASSERT( ( xTimerTaskHandle != NULL ) );
 | |
|         return xTimerTaskHandle;
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     TickType_t xTimerGetPeriod( TimerHandle_t xTimer )
 | |
|     {
 | |
|         Timer_t * pxTimer = xTimer;
 | |
| 
 | |
|         configASSERT( xTimer );
 | |
|         return pxTimer->xTimerPeriodInTicks;
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     void vTimerSetReloadMode( TimerHandle_t xTimer,
 | |
|                               const UBaseType_t uxAutoReload )
 | |
|     {
 | |
|         Timer_t * pxTimer = xTimer;
 | |
| 
 | |
|         configASSERT( xTimer );
 | |
|         taskENTER_CRITICAL( &xTimerLock );
 | |
|         {
 | |
|             if( uxAutoReload != pdFALSE )
 | |
|             {
 | |
|                 pxTimer->ucStatus |= tmrSTATUS_IS_AUTORELOAD;
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 pxTimer->ucStatus &= ~tmrSTATUS_IS_AUTORELOAD;
 | |
|             }
 | |
|         }
 | |
|         taskEXIT_CRITICAL( &xTimerLock );
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     UBaseType_t uxTimerGetReloadMode( TimerHandle_t xTimer )
 | |
|     {
 | |
|         Timer_t * pxTimer = xTimer;
 | |
|         UBaseType_t uxReturn;
 | |
| 
 | |
|         configASSERT( xTimer );
 | |
|         taskENTER_CRITICAL( &xTimerLock );
 | |
|         {
 | |
|             if( ( pxTimer->ucStatus & tmrSTATUS_IS_AUTORELOAD ) == 0 )
 | |
|             {
 | |
|                 /* Not an auto-reload timer. */
 | |
|                 uxReturn = ( UBaseType_t ) pdFALSE;
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 /* Is an auto-reload timer. */
 | |
|                 uxReturn = ( UBaseType_t ) pdTRUE;
 | |
|             }
 | |
|         }
 | |
|         taskEXIT_CRITICAL( &xTimerLock );
 | |
| 
 | |
|         return uxReturn;
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     TickType_t xTimerGetExpiryTime( TimerHandle_t xTimer )
 | |
|     {
 | |
|         Timer_t * pxTimer = xTimer;
 | |
|         TickType_t xReturn;
 | |
| 
 | |
|         configASSERT( xTimer );
 | |
|         xReturn = listGET_LIST_ITEM_VALUE( &( pxTimer->xTimerListItem ) );
 | |
|         return xReturn;
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     const char * pcTimerGetName( TimerHandle_t xTimer ) /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
 | |
|     {
 | |
|         Timer_t * pxTimer = xTimer;
 | |
| 
 | |
|         configASSERT( xTimer );
 | |
|         return pxTimer->pcTimerName;
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     static void prvProcessExpiredTimer( const TickType_t xNextExpireTime,
 | |
|                                         const TickType_t xTimeNow )
 | |
|     {
 | |
|         BaseType_t xResult;
 | |
|         Timer_t * const pxTimer = ( Timer_t * ) listGET_OWNER_OF_HEAD_ENTRY( pxCurrentTimerList ); /*lint !e9087 !e9079 void * is used as this macro is used with tasks and co-routines too.  Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
 | |
| 
 | |
|         /* Remove the timer from the list of active timers.  A check has already
 | |
|          * been performed to ensure the list is not empty. */
 | |
| 
 | |
|         ( void ) uxListRemove( &( pxTimer->xTimerListItem ) );
 | |
|         traceTIMER_EXPIRED( pxTimer );
 | |
| 
 | |
|         /* If the timer is an auto-reload timer then calculate the next
 | |
|          * expiry time and re-insert the timer in the list of active timers. */
 | |
|         if( ( pxTimer->ucStatus & tmrSTATUS_IS_AUTORELOAD ) != 0 )
 | |
|         {
 | |
|             /* The timer is inserted into a list using a time relative to anything
 | |
|              * other than the current time.  It will therefore be inserted into the
 | |
|              * correct list relative to the time this task thinks it is now. */
 | |
|             if( prvInsertTimerInActiveList( pxTimer, ( xNextExpireTime + pxTimer->xTimerPeriodInTicks ), xTimeNow, xNextExpireTime ) != pdFALSE )
 | |
|             {
 | |
|                 /* The timer expired before it was added to the active timer
 | |
|                  * list.  Reload it now.  */
 | |
|                 xResult = xTimerGenericCommand( pxTimer, tmrCOMMAND_START_DONT_TRACE, xNextExpireTime, NULL, tmrNO_DELAY );
 | |
|                 configASSERT( xResult );
 | |
|                 ( void ) xResult;
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 mtCOVERAGE_TEST_MARKER();
 | |
|             }
 | |
|         }
 | |
|         else
 | |
|         {
 | |
|             pxTimer->ucStatus &= ~tmrSTATUS_IS_ACTIVE;
 | |
|             mtCOVERAGE_TEST_MARKER();
 | |
|         }
 | |
| 
 | |
|         /* Call the timer callback. */
 | |
|         pxTimer->pxCallbackFunction( ( TimerHandle_t ) pxTimer );
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     static portTASK_FUNCTION( prvTimerTask, pvParameters )
 | |
|     {
 | |
|         TickType_t xNextExpireTime;
 | |
|         BaseType_t xListWasEmpty;
 | |
| 
 | |
|         /* Just to avoid compiler warnings. */
 | |
|         ( void ) pvParameters;
 | |
| 
 | |
|         #if ( configUSE_DAEMON_TASK_STARTUP_HOOK == 1 )
 | |
|             {
 | |
|                 extern void vApplicationDaemonTaskStartupHook( void );
 | |
| 
 | |
|                 /* Allow the application writer to execute some code in the context of
 | |
|                  * this task at the point the task starts executing.  This is useful if the
 | |
|                  * application includes initialisation code that would benefit from
 | |
|                  * executing after the scheduler has been started. */
 | |
|                 vApplicationDaemonTaskStartupHook();
 | |
|             }
 | |
|         #endif /* configUSE_DAEMON_TASK_STARTUP_HOOK */
 | |
| 
 | |
|         for( ; ; )
 | |
|         {
 | |
|             /* Query the timers list to see if it contains any timers, and if so,
 | |
|              * obtain the time at which the next timer will expire. */
 | |
|             xNextExpireTime = prvGetNextExpireTime( &xListWasEmpty );
 | |
| 
 | |
|             /* If a timer has expired, process it.  Otherwise, block this task
 | |
|              * until either a timer does expire, or a command is received. */
 | |
|             prvProcessTimerOrBlockTask( xNextExpireTime, xListWasEmpty );
 | |
| 
 | |
|             /* Empty the command queue. */
 | |
|             prvProcessReceivedCommands();
 | |
|         }
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     static void prvProcessTimerOrBlockTask( const TickType_t xNextExpireTime,
 | |
|                                             BaseType_t xListWasEmpty )
 | |
|     {
 | |
|         TickType_t xTimeNow;
 | |
|         BaseType_t xTimerListsWereSwitched;
 | |
| 
 | |
| #ifdef ESP_PLATFORM
 | |
|         taskENTER_CRITICAL( &xTimerLock );
 | |
| #else
 | |
|         vTaskSuspendAll();
 | |
| #endif // ESP_PLATFORM
 | |
|         {
 | |
|             /* Obtain the time now to make an assessment as to whether the timer
 | |
|              * has expired or not.  If obtaining the time causes the lists to switch
 | |
|              * then don't process this timer as any timers that remained in the list
 | |
|              * when the lists were switched will have been processed within the
 | |
|              * prvSampleTimeNow() function. */
 | |
|             xTimeNow = prvSampleTimeNow( &xTimerListsWereSwitched );
 | |
| 
 | |
|             if( xTimerListsWereSwitched == pdFALSE )
 | |
|             {
 | |
|                 /* The tick count has not overflowed, has the timer expired? */
 | |
|                 if( ( xListWasEmpty == pdFALSE ) && ( xNextExpireTime <= xTimeNow ) )
 | |
|                 {
 | |
| #ifdef ESP_PLATFORM
 | |
|                     taskEXIT_CRITICAL( &xTimerLock );
 | |
| #else
 | |
|                     ( void ) xTaskResumeAll();
 | |
| #endif // ESP_PLATFORM
 | |
|                     prvProcessExpiredTimer( xNextExpireTime, xTimeNow );
 | |
|                 }
 | |
|                 else
 | |
|                 {
 | |
|                     /* The tick count has not overflowed, and the next expire
 | |
|                      * time has not been reached yet.  This task should therefore
 | |
|                      * block to wait for the next expire time or a command to be
 | |
|                      * received - whichever comes first.  The following line cannot
 | |
|                      * be reached unless xNextExpireTime > xTimeNow, except in the
 | |
|                      * case when the current timer list is empty. */
 | |
|                     if( xListWasEmpty != pdFALSE )
 | |
|                     {
 | |
|                         /* The current timer list is empty - is the overflow list
 | |
|                          * also empty? */
 | |
|                         xListWasEmpty = listLIST_IS_EMPTY( pxOverflowTimerList );
 | |
|                     }
 | |
| 
 | |
|                     vQueueWaitForMessageRestricted( xTimerQueue, ( xNextExpireTime - xTimeNow ), xListWasEmpty );
 | |
| 
 | |
| #ifdef ESP_PLATFORM // IDF-3755
 | |
|                     taskEXIT_CRITICAL( &xTimerLock );
 | |
| #else
 | |
|                     if( xTaskResumeAll() == pdFALSE )
 | |
| #endif // ESP_PLATFORM
 | |
|                     {
 | |
|                         /* Yield to wait for either a command to arrive, or the
 | |
|                          * block time to expire.  If a command arrived between the
 | |
|                          * critical section being exited and this yield then the yield
 | |
|                          * will not cause the task to block. */
 | |
|                         portYIELD_WITHIN_API();
 | |
|                     }
 | |
| #ifndef ESP_PLATFORM // IDF-3755
 | |
|                     else
 | |
|                     {
 | |
|                         mtCOVERAGE_TEST_MARKER();
 | |
|                     }
 | |
| #endif // ESP_PLATFORM
 | |
|                 }
 | |
|             }
 | |
|             else
 | |
|             {
 | |
| #ifdef ESP_PLATFORM // IDF-3755
 | |
|                 taskEXIT_CRITICAL( &xTimerLock );
 | |
| #else
 | |
|                 ( void ) xTaskResumeAll();
 | |
| #endif // ESP_PLATFORM
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     static TickType_t prvGetNextExpireTime( BaseType_t * const pxListWasEmpty )
 | |
|     {
 | |
|         TickType_t xNextExpireTime;
 | |
| 
 | |
|         /* Timers are listed in expiry time order, with the head of the list
 | |
|          * referencing the task that will expire first.  Obtain the time at which
 | |
|          * the timer with the nearest expiry time will expire.  If there are no
 | |
|          * active timers then just set the next expire time to 0.  That will cause
 | |
|          * this task to unblock when the tick count overflows, at which point the
 | |
|          * timer lists will be switched and the next expiry time can be
 | |
|          * re-assessed.  */
 | |
|         *pxListWasEmpty = listLIST_IS_EMPTY( pxCurrentTimerList );
 | |
| 
 | |
|         if( *pxListWasEmpty == pdFALSE )
 | |
|         {
 | |
|             xNextExpireTime = listGET_ITEM_VALUE_OF_HEAD_ENTRY( pxCurrentTimerList );
 | |
|         }
 | |
|         else
 | |
|         {
 | |
|             /* Ensure the task unblocks when the tick count rolls over. */
 | |
|             xNextExpireTime = ( TickType_t ) 0U;
 | |
|         }
 | |
| 
 | |
|         return xNextExpireTime;
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     static TickType_t prvSampleTimeNow( BaseType_t * const pxTimerListsWereSwitched )
 | |
|     {
 | |
|         TickType_t xTimeNow;
 | |
|         PRIVILEGED_DATA static TickType_t xLastTime = ( TickType_t ) 0U; /*lint !e956 Variable is only accessible to one task. */
 | |
| 
 | |
|         xTimeNow = xTaskGetTickCount();
 | |
| 
 | |
|         if( xTimeNow < xLastTime )
 | |
|         {
 | |
|             prvSwitchTimerLists();
 | |
|             *pxTimerListsWereSwitched = pdTRUE;
 | |
|         }
 | |
|         else
 | |
|         {
 | |
|             *pxTimerListsWereSwitched = pdFALSE;
 | |
|         }
 | |
| 
 | |
|         xLastTime = xTimeNow;
 | |
| 
 | |
|         return xTimeNow;
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     static BaseType_t prvInsertTimerInActiveList( Timer_t * const pxTimer,
 | |
|                                                   const TickType_t xNextExpiryTime,
 | |
|                                                   const TickType_t xTimeNow,
 | |
|                                                   const TickType_t xCommandTime )
 | |
|     {
 | |
|         BaseType_t xProcessTimerNow = pdFALSE;
 | |
| 
 | |
|         listSET_LIST_ITEM_VALUE( &( pxTimer->xTimerListItem ), xNextExpiryTime );
 | |
|         listSET_LIST_ITEM_OWNER( &( pxTimer->xTimerListItem ), pxTimer );
 | |
| 
 | |
|         if( xNextExpiryTime <= xTimeNow )
 | |
|         {
 | |
|             /* Has the expiry time elapsed between the command to start/reset a
 | |
|              * timer was issued, and the time the command was processed? */
 | |
|             if( ( ( TickType_t ) ( xTimeNow - xCommandTime ) ) >= pxTimer->xTimerPeriodInTicks ) /*lint !e961 MISRA exception as the casts are only redundant for some ports. */
 | |
|             {
 | |
|                 /* The time between a command being issued and the command being
 | |
|                  * processed actually exceeds the timers period.  */
 | |
|                 xProcessTimerNow = pdTRUE;
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 vListInsert( pxOverflowTimerList, &( pxTimer->xTimerListItem ) );
 | |
|             }
 | |
|         }
 | |
|         else
 | |
|         {
 | |
|             if( ( xTimeNow < xCommandTime ) && ( xNextExpiryTime >= xCommandTime ) )
 | |
|             {
 | |
|                 /* If, since the command was issued, the tick count has overflowed
 | |
|                  * but the expiry time has not, then the timer must have already passed
 | |
|                  * its expiry time and should be processed immediately. */
 | |
|                 xProcessTimerNow = pdTRUE;
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 vListInsert( pxCurrentTimerList, &( pxTimer->xTimerListItem ) );
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         return xProcessTimerNow;
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     static void prvProcessReceivedCommands( void )
 | |
|     {
 | |
|         DaemonTaskMessage_t xMessage;
 | |
|         Timer_t * pxTimer;
 | |
|         BaseType_t xTimerListsWereSwitched, xResult;
 | |
|         TickType_t xTimeNow;
 | |
| 
 | |
|         while( xQueueReceive( xTimerQueue, &xMessage, tmrNO_DELAY ) != pdFAIL ) /*lint !e603 xMessage does not have to be initialised as it is passed out, not in, and it is not used unless xQueueReceive() returns pdTRUE. */
 | |
|         {
 | |
|             #if ( INCLUDE_xTimerPendFunctionCall == 1 )
 | |
|                 {
 | |
|                     /* Negative commands are pended function calls rather than timer
 | |
|                      * commands. */
 | |
|                     if( xMessage.xMessageID < ( BaseType_t ) 0 )
 | |
|                     {
 | |
|                         const CallbackParameters_t * const pxCallback = &( xMessage.u.xCallbackParameters );
 | |
| 
 | |
|                         /* The timer uses the xCallbackParameters member to request a
 | |
|                          * callback be executed.  Check the callback is not NULL. */
 | |
|                         configASSERT( pxCallback );
 | |
| 
 | |
|                         /* Call the function. */
 | |
|                         pxCallback->pxCallbackFunction( pxCallback->pvParameter1, pxCallback->ulParameter2 );
 | |
|                     }
 | |
|                     else
 | |
|                     {
 | |
|                         mtCOVERAGE_TEST_MARKER();
 | |
|                     }
 | |
|                 }
 | |
|             #endif /* INCLUDE_xTimerPendFunctionCall */
 | |
| 
 | |
|             /* Commands that are positive are timer commands rather than pended
 | |
|              * function calls. */
 | |
|             if( xMessage.xMessageID >= ( BaseType_t ) 0 )
 | |
|             {
 | |
|                 /* The messages uses the xTimerParameters member to work on a
 | |
|                  * software timer. */
 | |
|                 pxTimer = xMessage.u.xTimerParameters.pxTimer;
 | |
| 
 | |
|                 if( listIS_CONTAINED_WITHIN( NULL, &( pxTimer->xTimerListItem ) ) == pdFALSE ) /*lint !e961. The cast is only redundant when NULL is passed into the macro. */
 | |
|                 {
 | |
|                     /* The timer is in a list, remove it. */
 | |
|                     ( void ) uxListRemove( &( pxTimer->xTimerListItem ) );
 | |
|                 }
 | |
|                 else
 | |
|                 {
 | |
|                     mtCOVERAGE_TEST_MARKER();
 | |
|                 }
 | |
| 
 | |
|                 traceTIMER_COMMAND_RECEIVED( pxTimer, xMessage.xMessageID, xMessage.u.xTimerParameters.xMessageValue );
 | |
| 
 | |
|                 /* In this case the xTimerListsWereSwitched parameter is not used, but
 | |
|                  *  it must be present in the function call.  prvSampleTimeNow() must be
 | |
|                  *  called after the message is received from xTimerQueue so there is no
 | |
|                  *  possibility of a higher priority task adding a message to the message
 | |
|                  *  queue with a time that is ahead of the timer daemon task (because it
 | |
|                  *  pre-empted the timer daemon task after the xTimeNow value was set). */
 | |
|                 xTimeNow = prvSampleTimeNow( &xTimerListsWereSwitched );
 | |
| 
 | |
|                 switch( xMessage.xMessageID )
 | |
|                 {
 | |
|                     case tmrCOMMAND_START:
 | |
|                     case tmrCOMMAND_START_FROM_ISR:
 | |
|                     case tmrCOMMAND_RESET:
 | |
|                     case tmrCOMMAND_RESET_FROM_ISR:
 | |
|                     case tmrCOMMAND_START_DONT_TRACE:
 | |
|                         /* Start or restart a timer. */
 | |
|                         pxTimer->ucStatus |= tmrSTATUS_IS_ACTIVE;
 | |
| 
 | |
|                         if( prvInsertTimerInActiveList( pxTimer, xMessage.u.xTimerParameters.xMessageValue + pxTimer->xTimerPeriodInTicks, xTimeNow, xMessage.u.xTimerParameters.xMessageValue ) != pdFALSE )
 | |
|                         {
 | |
|                             /* The timer expired before it was added to the active
 | |
|                              * timer list.  Process it now. */
 | |
|                             if( ( pxTimer->ucStatus & tmrSTATUS_IS_AUTORELOAD ) != 0 )
 | |
|                             {
 | |
|                                 xResult = xTimerGenericCommand( pxTimer, tmrCOMMAND_START_DONT_TRACE, xMessage.u.xTimerParameters.xMessageValue + pxTimer->xTimerPeriodInTicks, NULL, tmrNO_DELAY );
 | |
|                                 configASSERT( xResult );
 | |
|                                 ( void ) xResult;
 | |
|                             }
 | |
|                             else
 | |
|                             {
 | |
|                                 pxTimer->ucStatus &= ( ( uint8_t ) ~tmrSTATUS_IS_ACTIVE );
 | |
|                             }
 | |
| 
 | |
|                             /* Call the timer callback. */
 | |
|                             traceTIMER_EXPIRED( pxTimer );
 | |
|                             pxTimer->pxCallbackFunction( ( TimerHandle_t ) pxTimer );
 | |
|                         }
 | |
|                         else
 | |
|                         {
 | |
|                             mtCOVERAGE_TEST_MARKER();
 | |
|                         }
 | |
| 
 | |
|                         break;
 | |
| 
 | |
|                     case tmrCOMMAND_STOP:
 | |
|                     case tmrCOMMAND_STOP_FROM_ISR:
 | |
|                         /* The timer has already been removed from the active list. */
 | |
|                         pxTimer->ucStatus &= ~tmrSTATUS_IS_ACTIVE;
 | |
|                         break;
 | |
| 
 | |
|                     case tmrCOMMAND_CHANGE_PERIOD:
 | |
|                     case tmrCOMMAND_CHANGE_PERIOD_FROM_ISR:
 | |
|                         pxTimer->ucStatus |= tmrSTATUS_IS_ACTIVE;
 | |
|                         pxTimer->xTimerPeriodInTicks = xMessage.u.xTimerParameters.xMessageValue;
 | |
|                         configASSERT( ( pxTimer->xTimerPeriodInTicks > 0 ) );
 | |
| 
 | |
|                         /* The new period does not really have a reference, and can
 | |
|                          * be longer or shorter than the old one.  The command time is
 | |
|                          * therefore set to the current time, and as the period cannot
 | |
|                          * be zero the next expiry time can only be in the future,
 | |
|                          * meaning (unlike for the xTimerStart() case above) there is
 | |
|                          * no fail case that needs to be handled here. */
 | |
|                         ( void ) prvInsertTimerInActiveList( pxTimer, ( xTimeNow + pxTimer->xTimerPeriodInTicks ), xTimeNow, xTimeNow );
 | |
|                         break;
 | |
| 
 | |
|                     case tmrCOMMAND_DELETE:
 | |
|                         #if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 )
 | |
|                             {
 | |
|                                 /* The timer has already been removed from the active list,
 | |
|                                  * just free up the memory if the memory was dynamically
 | |
|                                  * allocated. */
 | |
|                                 if( ( pxTimer->ucStatus & tmrSTATUS_IS_STATICALLY_ALLOCATED ) == ( uint8_t ) 0 )
 | |
|                                 {
 | |
|                                     vPortFree( pxTimer );
 | |
|                                 }
 | |
|                                 else
 | |
|                                 {
 | |
|                                     pxTimer->ucStatus &= ~tmrSTATUS_IS_ACTIVE;
 | |
|                                 }
 | |
|                             }
 | |
|                         #else /* if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) */
 | |
|                             {
 | |
|                                 /* If dynamic allocation is not enabled, the memory
 | |
|                                  * could not have been dynamically allocated. So there is
 | |
|                                  * no need to free the memory - just mark the timer as
 | |
|                                  * "not active". */
 | |
|                                 pxTimer->ucStatus &= ~tmrSTATUS_IS_ACTIVE;
 | |
|                             }
 | |
|                         #endif /* configSUPPORT_DYNAMIC_ALLOCATION */
 | |
|                         break;
 | |
| 
 | |
|                     default:
 | |
|                         /* Don't expect to get here. */
 | |
|                         break;
 | |
|                 }
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     static void prvSwitchTimerLists( void )
 | |
|     {
 | |
|         TickType_t xNextExpireTime, xReloadTime;
 | |
|         List_t * pxTemp;
 | |
|         Timer_t * pxTimer;
 | |
|         BaseType_t xResult;
 | |
| 
 | |
|         /* The tick count has overflowed.  The timer lists must be switched.
 | |
|          * If there are any timers still referenced from the current timer list
 | |
|          * then they must have expired and should be processed before the lists
 | |
|          * are switched. */
 | |
|         while( listLIST_IS_EMPTY( pxCurrentTimerList ) == pdFALSE )
 | |
|         {
 | |
|             xNextExpireTime = listGET_ITEM_VALUE_OF_HEAD_ENTRY( pxCurrentTimerList );
 | |
| 
 | |
|             /* Remove the timer from the list. */
 | |
|             pxTimer = ( Timer_t * ) listGET_OWNER_OF_HEAD_ENTRY( pxCurrentTimerList ); /*lint !e9087 !e9079 void * is used as this macro is used with tasks and co-routines too.  Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
 | |
|             ( void ) uxListRemove( &( pxTimer->xTimerListItem ) );
 | |
|             traceTIMER_EXPIRED( pxTimer );
 | |
| 
 | |
|             /* Execute its callback, then send a command to restart the timer if
 | |
|              * it is an auto-reload timer.  It cannot be restarted here as the lists
 | |
|              * have not yet been switched. */
 | |
|             pxTimer->pxCallbackFunction( ( TimerHandle_t ) pxTimer );
 | |
| 
 | |
|             if( ( pxTimer->ucStatus & tmrSTATUS_IS_AUTORELOAD ) != 0 )
 | |
|             {
 | |
|                 /* Calculate the reload value, and if the reload value results in
 | |
|                  * the timer going into the same timer list then it has already expired
 | |
|                  * and the timer should be re-inserted into the current list so it is
 | |
|                  * processed again within this loop.  Otherwise a command should be sent
 | |
|                  * to restart the timer to ensure it is only inserted into a list after
 | |
|                  * the lists have been swapped. */
 | |
|                 xReloadTime = ( xNextExpireTime + pxTimer->xTimerPeriodInTicks );
 | |
| 
 | |
|                 if( xReloadTime > xNextExpireTime )
 | |
|                 {
 | |
|                     listSET_LIST_ITEM_VALUE( &( pxTimer->xTimerListItem ), xReloadTime );
 | |
|                     listSET_LIST_ITEM_OWNER( &( pxTimer->xTimerListItem ), pxTimer );
 | |
|                     vListInsert( pxCurrentTimerList, &( pxTimer->xTimerListItem ) );
 | |
|                 }
 | |
|                 else
 | |
|                 {
 | |
|                     xResult = xTimerGenericCommand( pxTimer, tmrCOMMAND_START_DONT_TRACE, xNextExpireTime, NULL, tmrNO_DELAY );
 | |
|                     configASSERT( xResult );
 | |
|                     ( void ) xResult;
 | |
|                 }
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 mtCOVERAGE_TEST_MARKER();
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         pxTemp = pxCurrentTimerList;
 | |
|         pxCurrentTimerList = pxOverflowTimerList;
 | |
|         pxOverflowTimerList = pxTemp;
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     static void prvCheckForValidListAndQueue( void )
 | |
|     {
 | |
|         /* Check that the list from which active timers are referenced, and the
 | |
|          * queue used to communicate with the timer service, have been
 | |
|          * initialised. */
 | |
|         taskENTER_CRITICAL( &xTimerLock );
 | |
|         {
 | |
|             if( xTimerQueue == NULL )
 | |
|             {
 | |
|                 vListInitialise( &xActiveTimerList1 );
 | |
|                 vListInitialise( &xActiveTimerList2 );
 | |
|                 pxCurrentTimerList = &xActiveTimerList1;
 | |
|                 pxOverflowTimerList = &xActiveTimerList2;
 | |
| 
 | |
|                 #if ( configSUPPORT_STATIC_ALLOCATION == 1 )
 | |
|                     {
 | |
|                         /* The timer queue is allocated statically in case
 | |
|                          * configSUPPORT_DYNAMIC_ALLOCATION is 0. */
 | |
|                         PRIVILEGED_DATA static StaticQueue_t xStaticTimerQueue; /*lint !e956 Ok to declare in this manner to prevent additional conditional compilation guards in other locations. */
 | |
|                         PRIVILEGED_DATA static uint8_t ucStaticTimerQueueStorage[ ( size_t ) configTIMER_QUEUE_LENGTH * sizeof( DaemonTaskMessage_t ) ]; /*lint !e956 Ok to declare in this manner to prevent additional conditional compilation guards in other locations. */
 | |
| 
 | |
|                         xTimerQueue = xQueueCreateStatic( ( UBaseType_t ) configTIMER_QUEUE_LENGTH, ( UBaseType_t ) sizeof( DaemonTaskMessage_t ), &( ucStaticTimerQueueStorage[ 0 ] ), &xStaticTimerQueue );
 | |
|                     }
 | |
|                 #else
 | |
|                     {
 | |
|                         xTimerQueue = xQueueCreate( ( UBaseType_t ) configTIMER_QUEUE_LENGTH, sizeof( DaemonTaskMessage_t ) );
 | |
|                     }
 | |
|                 #endif /* if ( configSUPPORT_STATIC_ALLOCATION == 1 ) */
 | |
| 
 | |
|                 #if ( configQUEUE_REGISTRY_SIZE > 0 )
 | |
|                     {
 | |
|                         if( xTimerQueue != NULL )
 | |
|                         {
 | |
|                             vQueueAddToRegistry( xTimerQueue, "TmrQ" );
 | |
|                         }
 | |
|                         else
 | |
|                         {
 | |
|                             mtCOVERAGE_TEST_MARKER();
 | |
|                         }
 | |
|                     }
 | |
|                 #endif /* configQUEUE_REGISTRY_SIZE */
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 mtCOVERAGE_TEST_MARKER();
 | |
|             }
 | |
|         }
 | |
|         taskEXIT_CRITICAL( &xTimerLock );
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     BaseType_t xTimerIsTimerActive( TimerHandle_t xTimer )
 | |
|     {
 | |
|         BaseType_t xReturn;
 | |
|         Timer_t * pxTimer = xTimer;
 | |
| 
 | |
|         configASSERT( xTimer );
 | |
| 
 | |
|         /* Is the timer in the list of active timers? */
 | |
|         taskENTER_CRITICAL( &xTimerLock );
 | |
|         {
 | |
|             if( ( pxTimer->ucStatus & tmrSTATUS_IS_ACTIVE ) == 0 )
 | |
|             {
 | |
|                 xReturn = pdFALSE;
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 xReturn = pdTRUE;
 | |
|             }
 | |
|         }
 | |
|         taskEXIT_CRITICAL( &xTimerLock );
 | |
| 
 | |
|         return xReturn;
 | |
|     } /*lint !e818 Can't be pointer to const due to the typedef. */
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     void * pvTimerGetTimerID( const TimerHandle_t xTimer )
 | |
|     {
 | |
|         Timer_t * const pxTimer = xTimer;
 | |
|         void * pvReturn;
 | |
| 
 | |
|         configASSERT( xTimer );
 | |
| 
 | |
|         taskENTER_CRITICAL( &xTimerLock );
 | |
|         {
 | |
|             pvReturn = pxTimer->pvTimerID;
 | |
|         }
 | |
|         taskEXIT_CRITICAL( &xTimerLock );
 | |
| 
 | |
|         return pvReturn;
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     void vTimerSetTimerID( TimerHandle_t xTimer,
 | |
|                            void * pvNewID )
 | |
|     {
 | |
|         Timer_t * const pxTimer = xTimer;
 | |
| 
 | |
|         configASSERT( xTimer );
 | |
| 
 | |
|         taskENTER_CRITICAL( &xTimerLock );
 | |
|         {
 | |
|             pxTimer->pvTimerID = pvNewID;
 | |
|         }
 | |
|         taskEXIT_CRITICAL( &xTimerLock );
 | |
|     }
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     #if ( INCLUDE_xTimerPendFunctionCall == 1 )
 | |
| 
 | |
|         BaseType_t xTimerPendFunctionCallFromISR( PendedFunction_t xFunctionToPend,
 | |
|                                                   void * pvParameter1,
 | |
|                                                   uint32_t ulParameter2,
 | |
|                                                   BaseType_t * pxHigherPriorityTaskWoken )
 | |
|         {
 | |
|             DaemonTaskMessage_t xMessage;
 | |
|             BaseType_t xReturn;
 | |
| 
 | |
|             /* Complete the message with the function parameters and post it to the
 | |
|              * daemon task. */
 | |
|             xMessage.xMessageID = tmrCOMMAND_EXECUTE_CALLBACK_FROM_ISR;
 | |
|             xMessage.u.xCallbackParameters.pxCallbackFunction = xFunctionToPend;
 | |
|             xMessage.u.xCallbackParameters.pvParameter1 = pvParameter1;
 | |
|             xMessage.u.xCallbackParameters.ulParameter2 = ulParameter2;
 | |
| 
 | |
|             xReturn = xQueueSendFromISR( xTimerQueue, &xMessage, pxHigherPriorityTaskWoken );
 | |
| 
 | |
|             tracePEND_FUNC_CALL_FROM_ISR( xFunctionToPend, pvParameter1, ulParameter2, xReturn );
 | |
| 
 | |
|             return xReturn;
 | |
|         }
 | |
| 
 | |
|     #endif /* INCLUDE_xTimerPendFunctionCall */
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     #if ( INCLUDE_xTimerPendFunctionCall == 1 )
 | |
| 
 | |
|         BaseType_t xTimerPendFunctionCall( PendedFunction_t xFunctionToPend,
 | |
|                                            void * pvParameter1,
 | |
|                                            uint32_t ulParameter2,
 | |
|                                            TickType_t xTicksToWait )
 | |
|         {
 | |
|             DaemonTaskMessage_t xMessage;
 | |
|             BaseType_t xReturn;
 | |
| 
 | |
|             /* This function can only be called after a timer has been created or
 | |
|              * after the scheduler has been started because, until then, the timer
 | |
|              * queue does not exist. */
 | |
|             configASSERT( xTimerQueue );
 | |
| 
 | |
|             /* Complete the message with the function parameters and post it to the
 | |
|              * daemon task. */
 | |
|             xMessage.xMessageID = tmrCOMMAND_EXECUTE_CALLBACK;
 | |
|             xMessage.u.xCallbackParameters.pxCallbackFunction = xFunctionToPend;
 | |
|             xMessage.u.xCallbackParameters.pvParameter1 = pvParameter1;
 | |
|             xMessage.u.xCallbackParameters.ulParameter2 = ulParameter2;
 | |
| 
 | |
|             xReturn = xQueueSendToBack( xTimerQueue, &xMessage, xTicksToWait );
 | |
| 
 | |
|             tracePEND_FUNC_CALL( xFunctionToPend, pvParameter1, ulParameter2, xReturn );
 | |
| 
 | |
|             return xReturn;
 | |
|         }
 | |
| 
 | |
|     #endif /* INCLUDE_xTimerPendFunctionCall */
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     #if ( configUSE_TRACE_FACILITY == 1 )
 | |
| 
 | |
|         UBaseType_t uxTimerGetTimerNumber( TimerHandle_t xTimer )
 | |
|         {
 | |
|             return ( ( Timer_t * ) xTimer )->uxTimerNumber;
 | |
|         }
 | |
| 
 | |
|     #endif /* configUSE_TRACE_FACILITY */
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
|     #if ( configUSE_TRACE_FACILITY == 1 )
 | |
| 
 | |
|         void vTimerSetTimerNumber( TimerHandle_t xTimer,
 | |
|                                    UBaseType_t uxTimerNumber )
 | |
|         {
 | |
|             ( ( Timer_t * ) xTimer )->uxTimerNumber = uxTimerNumber;
 | |
|         }
 | |
| 
 | |
|     #endif /* configUSE_TRACE_FACILITY */
 | |
| /*-----------------------------------------------------------*/
 | |
| 
 | |
| /* This entire source file will be skipped if the application is not configured
 | |
|  * to include software timer functionality.  If you want to include software timer
 | |
|  * functionality then ensure configUSE_TIMERS is set to 1 in FreeRTOSConfig.h. */
 | |
| #endif /* configUSE_TIMERS == 1 */
 |