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->uxAutoReload = uxAutoReload;
pxNewTimer->pvTimerID = pvTimerID;
pxNewTimer->pxCallbackFunction = pxCallbackFunction;
vListInitialiseItem( &( pxNewTimer->xTimerListItem ) );
traceTIMER_CREATE( pxNewTimer );
}
}
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 = xTaskCreateStatic( prvTimerTask,
configTIMER_SERVICE_TASK_NAME,
ulTimerTaskStackSize,
NULL,
( ( UBaseType_t ) configTIMER_TASK_PRIORITY ) | portPRIVILEGE_BIT,
pxTimerTaskStackBuffer,
pxTimerTaskTCBBuffer );
if( xTimerTaskHandle != NULL )
{
xReturn = pdPASS;
}
}
#else
{
xReturn = xTaskCreate( prvTimerTask,
configTIMER_SERVICE_TASK_NAME,
configTIMER_TASK_STACK_DEPTH,
NULL,
( ( UBaseType_t ) configTIMER_TASK_PRIORITY ) | portPRIVILEGE_BIT,
&xTimerTaskHandle );
}
#endif /* configSUPPORT_STATIC_ALLOCATION */
}
else
{
mtCOVERAGE_TEST_MARKER();
}
configASSERT( xReturn );
return xReturn;
}
BaseType_t xTimerCreateTimerTask( void )
{
BaseType_t xReturn = pdFAIL;
StaticTask_t *pxTimerTaskTCBBuffer = NULL;
StackType_t *pxTimerTaskStackBuffer = NULL;
uint16_t usTimerTaskStackSize = configTIMER_TASK_STACK_DEPTH;
/* 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 )
{
vApplicationGetTimerTaskMemory( &pxTimerTaskTCBBuffer, &pxTimerTaskStackBuffer, &usTimerTaskStackSize );
}
#endif /* configSUPPORT_STATIC_ALLOCATION */
#if ( INCLUDE_xTimerGetTimerDaemonTaskHandle == 1 )
{
/* Create the timer task, storing its handle in xTimerTaskHandle so
it can be returned by the xTimerGetTimerDaemonTaskHandle() function. */
xReturn = xTaskGenericCreate( prvTimerTask, "Tmr Svc", usTimerTaskStackSize, NULL, ( ( UBaseType_t ) configTIMER_TASK_PRIORITY ) | portPRIVILEGE_BIT, &xTimerTaskHandle, pxTimerTaskStackBuffer, pxTimerTaskTCBBuffer, NULL );
}
#else
{
/* Create the timer task without storing its handle. */
xReturn = xTaskGenericCreate( prvTimerTask, "Tmr Svc", usTimerTaskStackSize, NULL, ( ( UBaseType_t ) configTIMER_TASK_PRIORITY ) | portPRIVILEGE_BIT, NULL, pxTimerTaskStackBuffer, pxTimerTaskTCBBuffer, NULL );
}
#endif
}
else
{
mtCOVERAGE_TEST_MARKER();
}
configASSERT( xReturn );
return xReturn;
}
TimerHandle_t xTimerGenericCreate( const char * const pcTimerName, const TickType_t xTimerPeriodInTicks, const UBaseType_t uxAutoReload, void * const pvTimerID, TimerCallbackFunction_t pxCallbackFunction, StaticTimer_t *pxTimerBuffer ) /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
{
Timer_t *pxNewTimer;
#if( ( configASSERT_DEFINED == 1 ) && ( configSUPPORT_STATIC_ALLOCATION == 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
structures. */
volatile size_t xSize = sizeof( StaticTimer_t );
configASSERT( xSize == sizeof( Timer_t ) );
}
#endif /* configASSERT_DEFINED */
/* Allocate the timer structure. */
if( xTimerPeriodInTicks == ( TickType_t ) 0U )
{
pxNewTimer = NULL;
}
else
{
/* If the user passed in a statically allocated timer structure then use
it, otherwise allocate the structure dynamically. */
if( pxTimerBuffer == NULL )
{
pxNewTimer = ( Timer_t * ) pvPortMalloc( sizeof( Timer_t ) );
}
else
{
pxNewTimer = ( Timer_t * ) pxTimerBuffer; /*lint !e740 Unusual cast is ok as the structures are designed to have the same alignment, and the size is checked by an assert. */
}
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 ) );
#if( configSUPPORT_STATIC_ALLOCATION == 1 )
{
if( pxTimerBuffer == NULL )
{
pxNewTimer->ucStaticallyAllocated = pdFALSE;
}
else
{
pxNewTimer->ucStaticallyAllocated = pdTRUE;
}
}
#endif /* configSUPPORT_STATIC_ALLOCATION */
traceTIMER_CREATE( pxNewTimer );
}
else
{
traceTIMER_CREATE_FAILED();
}
}
/* 0 is not a valid value for xTimerPeriodInTicks. */
configASSERT( ( xTimerPeriodInTicks > 0 ) );
return ( TimerHandle_t ) pxNewTimer;
}
