diff options
| author | hathach <[email protected]> | 2013-04-15 19:08:24 +0800 |
|---|---|---|
| committer | hathach <[email protected]> | 2013-04-15 19:08:24 +0800 |
| commit | 89133d36cef52fe470547d345492a8a6c83cd599 (patch) | |
| tree | e0e803f6eefbfc48f65f66d1d3056387e6f420a7 /tests/test/support/FreeRTOS/Source/timers.c | |
| parent | 3a6d2da854d89cd27a82664f0b5857ef8c48badc (diff) | |
add freeRTOS source from vendor to test
remove temp freeRTOS folder in test/support
use test/support/FreeRTOSConfig.h from win32-mingw demo
temporarily disable all tests in test_osal_freeRTOS.c
Diffstat (limited to 'tests/test/support/FreeRTOS/Source/timers.c')
| -rw-r--r-- | tests/test/support/FreeRTOS/Source/timers.c | 688 |
1 files changed, 0 insertions, 688 deletions
diff --git a/tests/test/support/FreeRTOS/Source/timers.c b/tests/test/support/FreeRTOS/Source/timers.c deleted file mode 100644 index bb829f712..000000000 --- a/tests/test/support/FreeRTOS/Source/timers.c +++ /dev/null @@ -1,688 +0,0 @@ -/* - FreeRTOS V7.3.0 - Copyright (C) 2012 Real Time Engineers Ltd. - - FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME. PLEASE VISIT - http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. - - *************************************************************************** - * * - * FreeRTOS tutorial books are available in pdf and paperback. * - * Complete, revised, and edited pdf reference manuals are also * - * available. * - * * - * Purchasing FreeRTOS documentation will not only help you, by * - * ensuring you get running as quickly as possible and with an * - * in-depth knowledge of how to use FreeRTOS, it will also help * - * the FreeRTOS project to continue with its mission of providing * - * professional grade, cross platform, de facto standard solutions * - * for microcontrollers - completely free of charge! * - * * - * >>> See http://www.FreeRTOS.org/Documentation for details. <<< * - * * - * Thank you for using FreeRTOS, and thank you for your support! * - * * - *************************************************************************** - - - This file is part of the FreeRTOS distribution. - - FreeRTOS is free software; you can redistribute it and/or modify it under - the terms of the GNU General Public License (version 2) as published by the - Free Software Foundation AND MODIFIED BY the FreeRTOS exception. - >>>NOTE<<< The modification to the GPL is included to allow you to - distribute a combined work that includes FreeRTOS without being obliged to - provide the source code for proprietary components outside of the FreeRTOS - kernel. FreeRTOS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - more details. You should have received a copy of the GNU General Public - License and the FreeRTOS license exception along with FreeRTOS; if not it - can be viewed here: http://www.freertos.org/a00114.html and also obtained - by writing to Richard Barry, contact details for whom are available on the - FreeRTOS WEB site. - - 1 tab == 4 spaces! - - *************************************************************************** - * * - * Having a problem? Start by reading the FAQ "My application does * - * not run, what could be wrong?" * - * * - * http://www.FreeRTOS.org/FAQHelp.html * - * * - *************************************************************************** - - - http://www.FreeRTOS.org - Documentation, training, latest versions, license - and contact details. - - http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, - including FreeRTOS+Trace - an indispensable productivity tool. - - Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell - the code with commercial support, indemnification, and middleware, under - the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also - provide a safety engineered and independently SIL3 certified version under - the SafeRTOS brand: http://www.SafeRTOS.com. -*/ - -/* 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" - -#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE - -/* 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 ( portTickType ) 0U - -/* The definition of the timers themselves. */ -typedef struct tmrTimerControl -{ - const signed char *pcTimerName; /*<< Text name. This is not used by the kernel, it is included simply to make debugging easier. */ - xListItem xTimerListItem; /*<< Standard linked list item as used by all kernel features for event management. */ - portTickType xTimerPeriodInTicks;/*<< How quickly and often the timer expires. */ - unsigned portBASE_TYPE uxAutoReload; /*<< Set to pdTRUE if the timer should be automatically restarted once expired. Set to pdFALSE if the timer is, in effect, a one shot timer. */ - void *pvTimerID; /*<< An ID to identify the timer. This allows the timer to be identified when the same callback is used for multiple timers. */ - tmrTIMER_CALLBACK pxCallbackFunction; /*<< The function that will be called when the timer expires. */ -} xTIMER; - -/* The definition of messages that can be sent and received on the timer -queue. */ -typedef struct tmrTimerQueueMessage -{ - portBASE_TYPE xMessageID; /*<< The command being sent to the timer service task. */ - portTickType xMessageValue; /*<< An optional value used by a subset of commands, for example, when changing the period of a timer. */ - xTIMER * pxTimer; /*<< The timer to which the command will be applied. */ -} xTIMER_MESSAGE; - - -/* 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 xActiveTimerList. */ -PRIVILEGED_DATA static xList xActiveTimerList1; -PRIVILEGED_DATA static xList xActiveTimerList2; -PRIVILEGED_DATA static xList *pxCurrentTimerList; -PRIVILEGED_DATA static xList *pxOverflowTimerList; - -/* A queue that is used to send commands to the timer service task. */ -PRIVILEGED_DATA static xQueueHandle xTimerQueue = NULL; - -#if ( INCLUDE_xTimerGetTimerDaemonTaskHandle == 1 ) - - PRIVILEGED_DATA static xTaskHandle xTimerTaskHandle = NULL; - -#endif - -/*-----------------------------------------------------------*/ - -/* - * 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 void prvTimerTask( void *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 portBASE_TYPE prvInsertTimerInActiveList( xTIMER *pxTimer, portTickType xNextExpiryTime, portTickType xTimeNow, portTickType 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( portTickType xNextExpireTime, portTickType 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( portTickType xLastTime ) PRIVILEGED_FUNCTION; - -/* - * Obtain the current tick count, setting *pxTimerListsWereSwitched to pdTRUE - * if a tick count overflow occurred since prvSampleTimeNow() was last called. - */ -static portTickType prvSampleTimeNow( portBASE_TYPE *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 portTickType prvGetNextExpireTime( portBASE_TYPE *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( portTickType xNextExpireTime, portBASE_TYPE xListWasEmpty ) PRIVILEGED_FUNCTION; - -/*-----------------------------------------------------------*/ - -portBASE_TYPE xTimerCreateTimerTask( void ) -{ -portBASE_TYPE 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 ( INCLUDE_xTimerGetTimerDaemonTaskHandle == 1 ) - { - /* Create the timer task, storing its handle in xTimerTaskHandle so - it can be returned by the xTimerGetTimerDaemonTaskHandle() function. */ - xReturn = xTaskCreate( prvTimerTask, ( const signed char * ) "Tmr Svc", ( unsigned short ) configTIMER_TASK_STACK_DEPTH, NULL, ( ( unsigned portBASE_TYPE ) configTIMER_TASK_PRIORITY ) | portPRIVILEGE_BIT, &xTimerTaskHandle ); - } - #else - { - /* Create the timer task without storing its handle. */ - xReturn = xTaskCreate( prvTimerTask, ( const signed char * ) "Tmr Svc", ( unsigned short ) configTIMER_TASK_STACK_DEPTH, NULL, ( ( unsigned portBASE_TYPE ) configTIMER_TASK_PRIORITY ) | portPRIVILEGE_BIT, NULL); - } - #endif - } - - configASSERT( xReturn ); - return xReturn; -} -/*-----------------------------------------------------------*/ - -xTimerHandle xTimerCreate( const signed char * const pcTimerName, portTickType xTimerPeriodInTicks, unsigned portBASE_TYPE uxAutoReload, void *pvTimerID, tmrTIMER_CALLBACK pxCallbackFunction ) -{ -xTIMER *pxNewTimer; - - /* Allocate the timer structure. */ - if( xTimerPeriodInTicks == ( portTickType ) 0U ) - { - pxNewTimer = NULL; - configASSERT( ( xTimerPeriodInTicks > 0 ) ); - } - else - { - pxNewTimer = ( xTIMER * ) pvPortMalloc( sizeof( xTIMER ) ); - 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->uxAutoReload = uxAutoReload; - pxNewTimer->pvTimerID = pvTimerID; - pxNewTimer->pxCallbackFunction = pxCallbackFunction; - vListInitialiseItem( &( pxNewTimer->xTimerListItem ) ); - - traceTIMER_CREATE( pxNewTimer ); - } - else - { - traceTIMER_CREATE_FAILED(); - } - } - - return ( xTimerHandle ) pxNewTimer; -} -/*-----------------------------------------------------------*/ - -portBASE_TYPE xTimerGenericCommand( xTimerHandle xTimer, portBASE_TYPE xCommandID, portTickType xOptionalValue, signed portBASE_TYPE *pxHigherPriorityTaskWoken, portTickType xBlockTime ) -{ -portBASE_TYPE xReturn = pdFAIL; -xTIMER_MESSAGE xMessage; - - /* 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.xMessageValue = xOptionalValue; - xMessage.pxTimer = ( xTIMER * ) xTimer; - - if( pxHigherPriorityTaskWoken == NULL ) - { - if( xTaskGetSchedulerState() == taskSCHEDULER_RUNNING ) - { - xReturn = xQueueSendToBack( xTimerQueue, &xMessage, xBlockTime ); - } - else - { - xReturn = xQueueSendToBack( xTimerQueue, &xMessage, tmrNO_DELAY ); - } - } - else - { - xReturn = xQueueSendToBackFromISR( xTimerQueue, &xMessage, pxHigherPriorityTaskWoken ); - } - - traceTIMER_COMMAND_SEND( xTimer, xCommandID, xOptionalValue, xReturn ); - } - - return xReturn; -} -/*-----------------------------------------------------------*/ - -#if ( INCLUDE_xTimerGetTimerDaemonTaskHandle == 1 ) - - xTaskHandle xTimerGetTimerDaemonTaskHandle( void ) - { - /* If xTimerGetTimerDaemonTaskHandle() is called before the scheduler has been - started, then xTimerTaskHandle will be NULL. */ - configASSERT( ( xTimerTaskHandle != NULL ) ); - return xTimerTaskHandle; - } - -#endif -/*-----------------------------------------------------------*/ - -static void prvProcessExpiredTimer( portTickType xNextExpireTime, portTickType xTimeNow ) -{ -xTIMER *pxTimer; -portBASE_TYPE xResult; - - /* Remove the timer from the list of active timers. A check has already - been performed to ensure the list is not empty. */ - pxTimer = ( xTIMER * ) listGET_OWNER_OF_HEAD_ENTRY( pxCurrentTimerList ); - 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->uxAutoReload == ( unsigned portBASE_TYPE ) pdTRUE ) - { - /* This is the only time a 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, even if a command to - switch lists due to a tick count overflow is already waiting in - the timer queue. */ - if( prvInsertTimerInActiveList( pxTimer, ( xNextExpireTime + pxTimer->xTimerPeriodInTicks ), xTimeNow, xNextExpireTime ) == pdTRUE ) - { - /* The timer expired before it was added to the active timer - list. Reload it now. */ - xResult = xTimerGenericCommand( pxTimer, tmrCOMMAND_START, xNextExpireTime, NULL, tmrNO_DELAY ); - configASSERT( xResult ); - ( void ) xResult; - } - } - - /* Call the timer callback. */ - pxTimer->pxCallbackFunction( ( xTimerHandle ) pxTimer ); -} -/*-----------------------------------------------------------*/ - -static void prvTimerTask( void *pvParameters ) -{ -portTickType xNextExpireTime; -portBASE_TYPE xListWasEmpty; - - /* Just to avoid compiler warnings. */ - ( void ) pvParameters; - - 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( portTickType xNextExpireTime, portBASE_TYPE xListWasEmpty ) -{ -portTickType xTimeNow; -portBASE_TYPE xTimerListsWereSwitched; - - vTaskSuspendAll(); - { - /* 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 - prvSampelTimeNow() function. */ - xTimeNow = prvSampleTimeNow( &xTimerListsWereSwitched ); - if( xTimerListsWereSwitched == pdFALSE ) - { - /* The tick count has not overflowed, has the timer expired? */ - if( ( xListWasEmpty == pdFALSE ) && ( xNextExpireTime <= xTimeNow ) ) - { - xTaskResumeAll(); - 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. */ - vQueueWaitForMessageRestricted( xTimerQueue, ( xNextExpireTime - xTimeNow ) ); - - if( xTaskResumeAll() == pdFALSE ) - { - /* 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(); - } - } - } - else - { - xTaskResumeAll(); - } - } -} -/*-----------------------------------------------------------*/ - -static portTickType prvGetNextExpireTime( portBASE_TYPE *pxListWasEmpty ) -{ -portTickType 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 = ( portTickType ) 0U; - } - - return xNextExpireTime; -} -/*-----------------------------------------------------------*/ - -static portTickType prvSampleTimeNow( portBASE_TYPE *pxTimerListsWereSwitched ) -{ -portTickType xTimeNow; -PRIVILEGED_DATA static portTickType xLastTime = ( portTickType ) 0U; - - xTimeNow = xTaskGetTickCount(); - - if( xTimeNow < xLastTime ) - { - prvSwitchTimerLists( xLastTime ); - *pxTimerListsWereSwitched = pdTRUE; - } - else - { - *pxTimerListsWereSwitched = pdFALSE; - } - - xLastTime = xTimeNow; - - return xTimeNow; -} -/*-----------------------------------------------------------*/ - -static portBASE_TYPE prvInsertTimerInActiveList( xTIMER *pxTimer, portTickType xNextExpiryTime, portTickType xTimeNow, portTickType xCommandTime ) -{ -portBASE_TYPE 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( ( ( portTickType ) ( xTimeNow - xCommandTime ) ) >= pxTimer->xTimerPeriodInTicks ) - { - /* 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 ) -{ -xTIMER_MESSAGE xMessage; -xTIMER *pxTimer; -portBASE_TYPE xTimerListsWereSwitched, xResult; -portTickType xTimeNow; - - /* In this case the xTimerListsWereSwitched parameter is not used, but it - must be present in the function call. */ - xTimeNow = prvSampleTimeNow( &xTimerListsWereSwitched ); - - while( xQueueReceive( xTimerQueue, &xMessage, tmrNO_DELAY ) != pdFAIL ) - { - pxTimer = xMessage.pxTimer; - - /* Is the timer already in a list of active timers? When the command - is trmCOMMAND_PROCESS_TIMER_OVERFLOW, the timer will be NULL as the - command is to the task rather than to an individual timer. */ - if( pxTimer != NULL ) - { - if( listIS_CONTAINED_WITHIN( NULL, &( pxTimer->xTimerListItem ) ) == pdFALSE ) - { - /* The timer is in a list, remove it. */ - uxListRemove( &( pxTimer->xTimerListItem ) ); - } - } - - traceTIMER_COMMAND_RECEIVED( pxTimer, xMessage.xMessageID, xMessage.xMessageValue ); - - switch( xMessage.xMessageID ) - { - case tmrCOMMAND_START : - /* Start or restart a timer. */ - if( prvInsertTimerInActiveList( pxTimer, xMessage.xMessageValue + pxTimer->xTimerPeriodInTicks, xTimeNow, xMessage.xMessageValue ) == pdTRUE ) - { - /* The timer expired before it was added to the active timer - list. Process it now. */ - pxTimer->pxCallbackFunction( ( xTimerHandle ) pxTimer ); - - if( pxTimer->uxAutoReload == ( unsigned portBASE_TYPE ) pdTRUE ) - { - xResult = xTimerGenericCommand( pxTimer, tmrCOMMAND_START, xMessage.xMessageValue + pxTimer->xTimerPeriodInTicks, NULL, tmrNO_DELAY ); - configASSERT( xResult ); - ( void ) xResult; - } - } - break; - - case tmrCOMMAND_STOP : - /* The timer has already been removed from the active list. - There is nothing to do here. */ - break; - - case tmrCOMMAND_CHANGE_PERIOD : - pxTimer->xTimerPeriodInTicks = xMessage.xMessageValue; - configASSERT( ( pxTimer->xTimerPeriodInTicks > 0 ) ); - prvInsertTimerInActiveList( pxTimer, ( xTimeNow + pxTimer->xTimerPeriodInTicks ), xTimeNow, xTimeNow ); - break; - - case tmrCOMMAND_DELETE : - /* The timer has already been removed from the active list, - just free up the memory. */ - vPortFree( pxTimer ); - break; - - default : - /* Don't expect to get here. */ - break; - } - } -} -/*-----------------------------------------------------------*/ - -static void prvSwitchTimerLists( portTickType xLastTime ) -{ -portTickType xNextExpireTime, xReloadTime; -xList *pxTemp; -xTIMER *pxTimer; -portBASE_TYPE xResult; - - /* Remove compiler warnings if configASSERT() is not defined. */ - ( void ) xLastTime; - - /* 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 = ( xTIMER * ) listGET_OWNER_OF_HEAD_ENTRY( pxCurrentTimerList ); - uxListRemove( &( pxTimer->xTimerListItem ) ); - - /* 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( ( xTimerHandle ) pxTimer ); - - if( pxTimer->uxAutoReload == ( unsigned portBASE_TYPE ) pdTRUE ) - { - /* 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, xNextExpireTime, NULL, tmrNO_DELAY ); - configASSERT( xResult ); - ( void ) xResult; - } - } - } - - 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(); - { - if( xTimerQueue == NULL ) - { - vListInitialise( &xActiveTimerList1 ); - vListInitialise( &xActiveTimerList2 ); - pxCurrentTimerList = &xActiveTimerList1; - pxOverflowTimerList = &xActiveTimerList2; - xTimerQueue = xQueueCreate( ( unsigned portBASE_TYPE ) configTIMER_QUEUE_LENGTH, sizeof( xTIMER_MESSAGE ) ); - } - } - taskEXIT_CRITICAL(); -} -/*-----------------------------------------------------------*/ - -portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) -{ -portBASE_TYPE xTimerIsInActiveList; -xTIMER *pxTimer = ( xTIMER * ) xTimer; - - /* Is the timer in the list of active timers? */ - taskENTER_CRITICAL(); - { - /* Checking to see if it is in the NULL list in effect checks to see if - it is referenced from either the current or the overflow timer lists in - one go, but the logic has to be reversed, hence the '!'. */ - xTimerIsInActiveList = !( listIS_CONTAINED_WITHIN( NULL, &( pxTimer->xTimerListItem ) ) ); - } - taskEXIT_CRITICAL(); - - return xTimerIsInActiveList; -} -/*-----------------------------------------------------------*/ - -void *pvTimerGetTimerID( xTimerHandle xTimer ) -{ -xTIMER *pxTimer = ( xTIMER * ) xTimer; - - return pxTimer->pvTimerID; -} -/*-----------------------------------------------------------*/ - -/* 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 */ |
