mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-08-19 09:38:32 -04:00
Cosmetic work towards MISRA compliance statement pre release of V7.
This commit is contained in:
Richard Barry
parent
a1842621eb
commit
37de268af4
10 changed files with 278 additions and 294 deletions
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@ -173,8 +173,7 @@ typedef portBASE_TYPE (*pdTASK_HOOK_CODE)( void * );
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#endif
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#if configMAX_TASK_NAME_LEN < 1
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#undef configMAX_TASK_NAME_LEN
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#define configMAX_TASK_NAME_LEN 1
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#error configMAX_TASK_NAME_LEN must be set to a minimum of 1 in FreeRTOSConfig.h
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#endif
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#ifndef INCLUDE_xTaskResumeFromISR
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@ -188,9 +187,6 @@ typedef portBASE_TYPE (*pdTASK_HOOK_CODE)( void * );
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/* The timers module relies on xTaskGetSchedulerState(). */
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#if configUSE_TIMERS == 1
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#undef INCLUDE_xTaskGetSchedulerState
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#define INCLUDE_xTaskGetSchedulerState 1
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#ifndef configTIMER_TASK_PRIORITY
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#error If configUSE_TIMERS is set to 1 then configTIMER_TASK_PRIORITY must also be defined.
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#endif /* configTIMER_TASK_PRIORITY */
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@ -209,15 +205,8 @@ typedef portBASE_TYPE (*pdTASK_HOOK_CODE)( void * );
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#define INCLUDE_xTaskGetSchedulerState 0
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#endif
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#if ( configUSE_MUTEXES == 1 )
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/* xTaskGetCurrentTaskHandle is used by the priority inheritance mechanism
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within the mutex implementation so must be available if mutexes are used. */
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#undef INCLUDE_xTaskGetCurrentTaskHandle
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#define INCLUDE_xTaskGetCurrentTaskHandle 1
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#else
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#ifndef INCLUDE_xTaskGetCurrentTaskHandle
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#define INCLUDE_xTaskGetCurrentTaskHandle 0
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#endif
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#ifndef INCLUDE_xTaskGetCurrentTaskHandle
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#define INCLUDE_xTaskGetCurrentTaskHandle 0
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#endif
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@ -231,11 +220,10 @@ typedef portBASE_TYPE (*pdTASK_HOOK_CODE)( void * );
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#ifndef configQUEUE_REGISTRY_SIZE
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#define configQUEUE_REGISTRY_SIZE 0
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#define configQUEUE_REGISTRY_SIZE 0U
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#endif
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#if configQUEUE_REGISTRY_SIZE < 1
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#define configQUEUE_REGISTRY_SIZE 0
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#if ( configQUEUE_REGISTRY_SIZE < 1U )
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#define vQueueAddToRegistry( xQueue, pcName )
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#define vQueueUnregisterQueue( xQueue )
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#endif
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@ -142,23 +142,23 @@
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#if( ( configCHECK_FOR_STACK_OVERFLOW > 1 ) && ( portSTACK_GROWTH > 0 ) )
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#define taskSECOND_CHECK_FOR_STACK_OVERFLOW() \
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{ \
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char *pcEndOfStack = ( char * ) pxCurrentTCB->pxEndOfStack; \
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static const unsigned char ucExpectedStackBytes[] = { tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
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tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
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tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
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tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
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tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE }; \
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\
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\
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pcEndOfStack -= sizeof( ucExpectedStackBytes ); \
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\
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/* Has the extremity of the task stack ever been written over? */ \
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if( memcmp( ( void * ) pcEndOfStack, ( void * ) ucExpectedStackBytes, sizeof( ucExpectedStackBytes ) ) != 0 ) \
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{ \
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vApplicationStackOverflowHook( ( xTaskHandle ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \
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} \
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#define taskSECOND_CHECK_FOR_STACK_OVERFLOW() \
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{ \
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char *pcEndOfStack = ( char * ) pxCurrentTCB->pxEndOfStack; \
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static const unsigned char ucExpectedStackBytes[] = { tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
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tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
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tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
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tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
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tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE }; \
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\
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\
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pcEndOfStack -= sizeof( ucExpectedStackBytes ); \
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\
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/* Has the extremity of the task stack ever been written over? */ \
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if( memcmp( ( void * ) pcEndOfStack, ( void * ) ucExpectedStackBytes, sizeof( ucExpectedStackBytes ) ) != 0 ) \
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{ \
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vApplicationStackOverflowHook( ( xTaskHandle ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \
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} \
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}
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#endif /* #if( configCHECK_FOR_STACK_OVERFLOW > 1 ) */
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@ -406,7 +406,7 @@ void vCoRoutineSchedule( void );
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#define crQUEUE_SEND( xHandle, pxQueue, pvItemToQueue, xTicksToWait, pxResult ) \
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{ \
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*( pxResult ) = xQueueCRSend( ( pxQueue) , ( pvItemToQueue) , ( xTicksToWait ) ); \
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if( *pxResult == errQUEUE_BLOCKED ) \
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if( *( pxResult ) == errQUEUE_BLOCKED ) \
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{ \
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crSET_STATE0( ( xHandle ) ); \
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*pxResult = xQueueCRSend( ( pxQueue ), ( pvItemToQueue ), 0 ); \
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@ -33,9 +33,9 @@
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FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details. You should have received a copy of the GNU General Public
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License and the FreeRTOS license exception along with FreeRTOS; if not it
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can be viewed here: http://www.freertos.org/a00114.html and also obtained
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more details. You should have received a copy of the GNU General Public
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License and the FreeRTOS license exception along with FreeRTOS; if not it
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can be viewed here: http://www.freertos.org/a00114.html and also obtained
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by writing to Richard Barry, contact details for whom are available on the
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FreeRTOS WEB site.
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@ -51,16 +51,14 @@
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licensing and training services.
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*/
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#ifndef INC_FREERTOS_H
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#error "#include FreeRTOS.h" must appear in source files before "#include queue.h"
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#endif
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#ifndef QUEUE_H
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#define QUEUE_H
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#ifndef INC_FREERTOS_H
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#error "#include FreeRTOS.h" must appear in source files before "#include queue.h"
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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@ -219,7 +217,7 @@ xQueueHandle xQueueCreate( unsigned portBASE_TYPE uxQueueLength, unsigned portBA
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* \defgroup xQueueSend xQueueSend
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* \ingroup QueueManagement
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*/
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#define xQueueSendToFront( xQueue, pvItemToQueue, xTicksToWait ) xQueueGenericSend( xQueue, pvItemToQueue, xTicksToWait, queueSEND_TO_FRONT )
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#define xQueueSendToFront( xQueue, pvItemToQueue, xTicksToWait ) xQueueGenericSend( ( xQueue ), ( pvItemToQueue ), ( xTicksToWait ), queueSEND_TO_FRONT )
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/**
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* queue. h
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@ -301,7 +299,7 @@ xQueueHandle xQueueCreate( unsigned portBASE_TYPE uxQueueLength, unsigned portBA
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* \defgroup xQueueSend xQueueSend
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* \ingroup QueueManagement
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*/
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#define xQueueSendToBack( xQueue, pvItemToQueue, xTicksToWait ) xQueueGenericSend( xQueue, pvItemToQueue, xTicksToWait, queueSEND_TO_BACK )
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#define xQueueSendToBack( xQueue, pvItemToQueue, xTicksToWait ) xQueueGenericSend( ( xQueue ), ( pvItemToQueue ), ( xTicksToWait ), queueSEND_TO_BACK )
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/**
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* queue. h
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@ -385,7 +383,7 @@ xQueueHandle xQueueCreate( unsigned portBASE_TYPE uxQueueLength, unsigned portBA
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* \defgroup xQueueSend xQueueSend
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* \ingroup QueueManagement
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*/
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#define xQueueSend( xQueue, pvItemToQueue, xTicksToWait ) xQueueGenericSend( xQueue, pvItemToQueue, xTicksToWait, queueSEND_TO_BACK )
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#define xQueueSend( xQueue, pvItemToQueue, xTicksToWait ) xQueueGenericSend( ( xQueue ), ( pvItemToQueue ), ( xTicksToWait ), queueSEND_TO_BACK )
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/**
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@ -567,7 +565,7 @@ signed portBASE_TYPE xQueueGenericSend( xQueueHandle pxQueue, const void * const
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* \defgroup xQueueReceive xQueueReceive
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* \ingroup QueueManagement
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*/
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#define xQueuePeek( xQueue, pvBuffer, xTicksToWait ) xQueueGenericReceive( xQueue, pvBuffer, xTicksToWait, pdTRUE )
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#define xQueuePeek( xQueue, pvBuffer, xTicksToWait ) xQueueGenericReceive( ( xQueue ), ( pvBuffer ), ( xTicksToWait ), pdTRUE )
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/**
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* queue. h
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@ -660,7 +658,7 @@ signed portBASE_TYPE xQueueGenericSend( xQueueHandle pxQueue, const void * const
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* \defgroup xQueueReceive xQueueReceive
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* \ingroup QueueManagement
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*/
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#define xQueueReceive( xQueue, pvBuffer, xTicksToWait ) xQueueGenericReceive( xQueue, pvBuffer, xTicksToWait, pdFALSE )
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#define xQueueReceive( xQueue, pvBuffer, xTicksToWait ) xQueueGenericReceive( ( xQueue ), ( pvBuffer ), ( xTicksToWait ), pdFALSE )
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/**
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@ -858,7 +856,7 @@ void vQueueDelete( xQueueHandle pxQueue );
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* \defgroup xQueueSendFromISR xQueueSendFromISR
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* \ingroup QueueManagement
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*/
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#define xQueueSendToFrontFromISR( pxQueue, pvItemToQueue, pxHigherPriorityTaskWoken ) xQueueGenericSendFromISR( pxQueue, pvItemToQueue, pxHigherPriorityTaskWoken, queueSEND_TO_FRONT )
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#define xQueueSendToFrontFromISR( pxQueue, pvItemToQueue, pxHigherPriorityTaskWoken ) xQueueGenericSendFromISR( ( pxQueue ), ( pvItemToQueue ), ( pxHigherPriorityTaskWoken ), queueSEND_TO_FRONT )
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/**
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@ -929,7 +927,7 @@ void vQueueDelete( xQueueHandle pxQueue );
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* \defgroup xQueueSendFromISR xQueueSendFromISR
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* \ingroup QueueManagement
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*/
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#define xQueueSendToBackFromISR( pxQueue, pvItemToQueue, pxHigherPriorityTaskWoken ) xQueueGenericSendFromISR( pxQueue, pvItemToQueue, pxHigherPriorityTaskWoken, queueSEND_TO_BACK )
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#define xQueueSendToBackFromISR( pxQueue, pvItemToQueue, pxHigherPriorityTaskWoken ) xQueueGenericSendFromISR( ( pxQueue ), ( pvItemToQueue ), ( pxHigherPriorityTaskWoken ), queueSEND_TO_BACK )
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/**
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* queue. h
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@ -1003,7 +1001,7 @@ void vQueueDelete( xQueueHandle pxQueue );
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* \defgroup xQueueSendFromISR xQueueSendFromISR
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* \ingroup QueueManagement
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*/
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#define xQueueSendFromISR( pxQueue, pvItemToQueue, pxHigherPriorityTaskWoken ) xQueueGenericSendFromISR( pxQueue, pvItemToQueue, pxHigherPriorityTaskWoken, queueSEND_TO_BACK )
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#define xQueueSendFromISR( pxQueue, pvItemToQueue, pxHigherPriorityTaskWoken ) xQueueGenericSendFromISR( ( pxQueue ), ( pvItemToQueue ), ( pxHigherPriorityTaskWoken ), queueSEND_TO_BACK )
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/**
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* queue. h
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@ -1197,10 +1195,10 @@ unsigned portBASE_TYPE uxQueueMessagesWaitingFromISR( const xQueueHandle pxQueue
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*/
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signed portBASE_TYPE xQueueAltGenericSend( xQueueHandle pxQueue, const void * const pvItemToQueue, portTickType xTicksToWait, portBASE_TYPE xCopyPosition );
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signed portBASE_TYPE xQueueAltGenericReceive( xQueueHandle pxQueue, void * const pvBuffer, portTickType xTicksToWait, portBASE_TYPE xJustPeeking );
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#define xQueueAltSendToFront( xQueue, pvItemToQueue, xTicksToWait ) xQueueAltGenericSend( xQueue, pvItemToQueue, xTicksToWait, queueSEND_TO_FRONT )
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#define xQueueAltSendToBack( xQueue, pvItemToQueue, xTicksToWait ) xQueueAltGenericSend( xQueue, pvItemToQueue, xTicksToWait, queueSEND_TO_BACK )
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#define xQueueAltReceive( xQueue, pvBuffer, xTicksToWait ) xQueueAltGenericReceive( xQueue, pvBuffer, xTicksToWait, pdFALSE )
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#define xQueueAltPeek( xQueue, pvBuffer, xTicksToWait ) xQueueAltGenericReceive( xQueue, pvBuffer, xTicksToWait, pdTRUE )
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#define xQueueAltSendToFront( xQueue, pvItemToQueue, xTicksToWait ) xQueueAltGenericSend( ( xQueue ), ( pvItemToQueue ), ( xTicksToWait ), queueSEND_TO_FRONT )
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#define xQueueAltSendToBack( xQueue, pvItemToQueue, xTicksToWait ) xQueueAltGenericSend( ( xQueue ), ( pvItemToQueue ), ( xTicksToWait ), queueSEND_TO_BACK )
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#define xQueueAltReceive( xQueue, pvBuffer, xTicksToWait ) xQueueAltGenericReceive( ( xQueue ), ( pvBuffer ), ( xTicksToWait ), pdFALSE )
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#define xQueueAltPeek( xQueue, pvBuffer, xTicksToWait ) xQueueAltGenericReceive( ( xQueue ), ( pvBuffer ), ( xTicksToWait ), pdTRUE )
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/*
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* The functions defined above are for passing data to and from tasks. The
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@ -1250,7 +1248,7 @@ portBASE_TYPE xQueueGiveMutexRecursive( xQueueHandle pxMutex );
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* @param pcName The name to be associated with the handle. This is the
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* name that the kernel aware debugger will display.
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*/
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#if configQUEUE_REGISTRY_SIZE > 0
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#if configQUEUE_REGISTRY_SIZE > 0U
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void vQueueAddToRegistry( xQueueHandle xQueue, signed char *pcName );
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#endif
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@ -51,20 +51,20 @@
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licensing and training services.
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*/
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#ifndef SEMAPHORE_H
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#define SEMAPHORE_H
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#ifndef INC_FREERTOS_H
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#error "#include FreeRTOS.h" must appear in source files before "#include semphr.h"
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#endif
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#ifndef SEMAPHORE_H
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#define SEMAPHORE_H
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#include "queue.h"
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typedef xQueueHandle xSemaphoreHandle;
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#define semBINARY_SEMAPHORE_QUEUE_LENGTH ( ( unsigned char ) 1 )
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#define semSEMAPHORE_QUEUE_ITEM_LENGTH ( ( unsigned char ) 0 )
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#define semGIVE_BLOCK_TIME ( ( portTickType ) 0 )
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#define semBINARY_SEMAPHORE_QUEUE_LENGTH ( ( unsigned char ) 1U )
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#define semSEMAPHORE_QUEUE_ITEM_LENGTH ( ( unsigned char ) 0U )
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#define semGIVE_BLOCK_TIME ( ( portTickType ) 0U )
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/**
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@ -105,12 +105,12 @@ typedef xQueueHandle xSemaphoreHandle;
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* \defgroup vSemaphoreCreateBinary vSemaphoreCreateBinary
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* \ingroup Semaphores
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*/
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#define vSemaphoreCreateBinary( xSemaphore ) { \
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xSemaphore = xQueueCreate( ( unsigned portBASE_TYPE ) 1, semSEMAPHORE_QUEUE_ITEM_LENGTH ); \
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if( xSemaphore != NULL ) \
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{ \
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xSemaphoreGive( xSemaphore ); \
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} \
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#define vSemaphoreCreateBinary( xSemaphore ) { \
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( xSemaphore ) = xQueueCreate( ( unsigned portBASE_TYPE ) 1, semSEMAPHORE_QUEUE_ITEM_LENGTH ); \
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if( ( xSemaphore ) != NULL ) \
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{ \
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xSemaphoreGive( ( xSemaphore ) ); \
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} \
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}
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/**
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@ -178,7 +178,7 @@ typedef xQueueHandle xSemaphoreHandle;
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* \defgroup xSemaphoreTake xSemaphoreTake
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* \ingroup Semaphores
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*/
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#define xSemaphoreTake( xSemaphore, xBlockTime ) xQueueGenericReceive( ( xQueueHandle ) xSemaphore, NULL, xBlockTime, pdFALSE )
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#define xSemaphoreTake( xSemaphore, xBlockTime ) xQueueGenericReceive( ( xQueueHandle ) ( xSemaphore ), NULL, ( xBlockTime ), pdFALSE )
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/**
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* semphr. h
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@ -271,7 +271,7 @@ typedef xQueueHandle xSemaphoreHandle;
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* \defgroup xSemaphoreTakeRecursive xSemaphoreTakeRecursive
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* \ingroup Semaphores
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*/
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#define xSemaphoreTakeRecursive( xMutex, xBlockTime ) xQueueTakeMutexRecursive( xMutex, xBlockTime )
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#define xSemaphoreTakeRecursive( xMutex, xBlockTime ) xQueueTakeMutexRecursive( ( xMutex ), ( xBlockTime ) )
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/*
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@ -286,7 +286,7 @@ typedef xQueueHandle xSemaphoreHandle;
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* responsiveness to gain execution speed, whereas the fully featured API
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* sacrifices execution speed to ensure better interrupt responsiveness.
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*/
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#define xSemaphoreAltTake( xSemaphore, xBlockTime ) xQueueAltGenericReceive( ( xQueueHandle ) xSemaphore, NULL, xBlockTime, pdFALSE )
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#define xSemaphoreAltTake( xSemaphore, xBlockTime ) xQueueAltGenericReceive( ( xQueueHandle ) ( xSemaphore ), NULL, ( xBlockTime ), pdFALSE )
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/**
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* semphr. h
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@ -349,7 +349,7 @@ typedef xQueueHandle xSemaphoreHandle;
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* \defgroup xSemaphoreGive xSemaphoreGive
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* \ingroup Semaphores
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*/
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#define xSemaphoreGive( xSemaphore ) xQueueGenericSend( ( xQueueHandle ) xSemaphore, NULL, semGIVE_BLOCK_TIME, queueSEND_TO_BACK )
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#define xSemaphoreGive( xSemaphore ) xQueueGenericSend( ( xQueueHandle ) ( xSemaphore ), NULL, semGIVE_BLOCK_TIME, queueSEND_TO_BACK )
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/**
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* semphr. h
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@ -433,7 +433,7 @@ typedef xQueueHandle xSemaphoreHandle;
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* \defgroup xSemaphoreGiveRecursive xSemaphoreGiveRecursive
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* \ingroup Semaphores
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*/
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#define xSemaphoreGiveRecursive( xMutex ) xQueueGiveMutexRecursive( xMutex )
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#define xSemaphoreGiveRecursive( xMutex ) xQueueGiveMutexRecursive( ( xMutex ) )
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/*
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* xSemaphoreAltGive() is an alternative version of xSemaphoreGive().
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@ -447,7 +447,7 @@ typedef xQueueHandle xSemaphoreHandle;
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* responsiveness to gain execution speed, whereas the fully featured API
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* sacrifices execution speed to ensure better interrupt responsiveness.
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*/
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#define xSemaphoreAltGive( xSemaphore ) xQueueAltGenericSend( ( xQueueHandle ) xSemaphore, NULL, semGIVE_BLOCK_TIME, queueSEND_TO_BACK )
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#define xSemaphoreAltGive( xSemaphore ) xQueueAltGenericSend( ( xQueueHandle ) ( xSemaphore ), NULL, semGIVE_BLOCK_TIME, queueSEND_TO_BACK )
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/**
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* semphr. h
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@ -538,7 +538,7 @@ typedef xQueueHandle xSemaphoreHandle;
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* \defgroup xSemaphoreGiveFromISR xSemaphoreGiveFromISR
|
||||
* \ingroup Semaphores
|
||||
*/
|
||||
#define xSemaphoreGiveFromISR( xSemaphore, pxHigherPriorityTaskWoken ) xQueueGenericSendFromISR( ( xQueueHandle ) xSemaphore, NULL, pxHigherPriorityTaskWoken, queueSEND_TO_BACK )
|
||||
#define xSemaphoreGiveFromISR( xSemaphore, pxHigherPriorityTaskWoken ) xQueueGenericSendFromISR( ( xQueueHandle ) ( xSemaphore ), NULL, ( pxHigherPriorityTaskWoken ), queueSEND_TO_BACK )
|
||||
|
||||
/**
|
||||
* semphr. h
|
||||
|
|
@ -703,7 +703,7 @@ typedef xQueueHandle xSemaphoreHandle;
|
|||
* \defgroup xSemaphoreCreateCounting xSemaphoreCreateCounting
|
||||
* \ingroup Semaphores
|
||||
*/
|
||||
#define xSemaphoreCreateCounting( uxMaxCount, uxInitialCount ) xQueueCreateCountingSemaphore( uxMaxCount, uxInitialCount )
|
||||
#define xSemaphoreCreateCounting( uxMaxCount, uxInitialCount ) xQueueCreateCountingSemaphore( ( uxMaxCount ), ( uxInitialCount ) )
|
||||
|
||||
|
||||
#endif /* SEMAPHORE_H */
|
||||
|
|
|
|||
|
|
@ -122,7 +122,7 @@ typedef struct xTASK_PARAMTERS
|
|||
*
|
||||
* \ingroup TaskUtils
|
||||
*/
|
||||
#define tskIDLE_PRIORITY ( ( unsigned portBASE_TYPE ) 0 )
|
||||
#define tskIDLE_PRIORITY ( ( unsigned portBASE_TYPE ) 0U )
|
||||
|
||||
/**
|
||||
* task. h
|
||||
|
|
|
|||
|
|
@ -79,7 +79,7 @@ as defined below. */
|
|||
*----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* Type by which software timers are referenced. For example, a call to
|
||||
* Type by which software timers are referenced. For example, a call to
|
||||
* xTimerCreate() returns an xTimerHandle variable that can then be used to
|
||||
* reference the subject timer in calls to other software timer API functions
|
||||
* (for example, xTimerStart(), xTimerReset(), etc.).
|
||||
|
|
@ -90,14 +90,14 @@ typedef void * xTimerHandle;
|
|||
typedef void (*tmrTIMER_CALLBACK)( xTimerHandle xTimer );
|
||||
|
||||
/**
|
||||
* xTimerHandle xTimerCreate( const signed char *pcTimerName,
|
||||
* portTickType xTimerPeriod,
|
||||
* unsigned portBASE_TYPE uxAutoReload,
|
||||
* void * pvTimerID,
|
||||
* xTimerHandle xTimerCreate( const signed char *pcTimerName,
|
||||
* portTickType xTimerPeriod,
|
||||
* unsigned portBASE_TYPE uxAutoReload,
|
||||
* void * pvTimerID,
|
||||
* tmrTIMER_CALLBACK pxCallbackFunction );
|
||||
*
|
||||
* Creates a new software timer instance. This allocates the storage required
|
||||
* by the new timer, initialises the new timers internal state, and returns a
|
||||
* Creates a new software timer instance. This allocates the storage required
|
||||
* by the new timer, initialises the new timers internal state, and returns a
|
||||
* handle by which the new timer can be referenced.
|
||||
*
|
||||
* Timers are created in the dormant state. The xTimerStart(), xTimerReset(),
|
||||
|
|
@ -109,7 +109,7 @@ typedef void (*tmrTIMER_CALLBACK)( xTimerHandle xTimer );
|
|||
* purely to assist debugging. The kernel itself only ever references a timer by
|
||||
* its handle, and never by its name.
|
||||
*
|
||||
* @param xTimerPeriod The timer period. The time is defined in tick periods so
|
||||
* @param xTimerPeriod The timer period. The time is defined in tick periods so
|
||||
* the constant portTICK_RATE_MS can be used to convert a time that has been
|
||||
* specified in milliseconds. For example, if the timer must expire after 100
|
||||
* ticks, then xTimerPeriod should be set to 100. Alternatively, if the timer
|
||||
|
|
@ -121,46 +121,46 @@ typedef void (*tmrTIMER_CALLBACK)( xTimerHandle xTimer );
|
|||
* uxAutoReload is set to pdFALSE then the timer will be a one-shot timer and
|
||||
* enter the dormant state after it expires.
|
||||
*
|
||||
* @param pvTimerID An identifier that is assigned to the timer being created.
|
||||
* Typically this would be used in the timer callback function to identify which
|
||||
* timer expired when the same callback function is assigned to more than one
|
||||
* @param pvTimerID An identifier that is assigned to the timer being created.
|
||||
* Typically this would be used in the timer callback function to identify which
|
||||
* timer expired when the same callback function is assigned to more than one
|
||||
* timer.
|
||||
*
|
||||
* @param pxCallbackFunction The function to call when the timer expires.
|
||||
* Callback functions must have the prototype defined by tmrTIMER_CALLBACK,
|
||||
* Callback functions must have the prototype defined by tmrTIMER_CALLBACK,
|
||||
* which is "void vCallbackFunction( xTIMER *xTimer );".
|
||||
*
|
||||
* @return If the timer is successfully create then a handle to the newly
|
||||
* created timer is returned. If the timer cannot be created (because either
|
||||
* there is insufficient FreeRTOS heap remaining to allocate the timer
|
||||
* there is insufficient FreeRTOS heap remaining to allocate the timer
|
||||
* structures, or the timer period was set to 0) then 0 is returned.
|
||||
*
|
||||
* Example usage:
|
||||
*
|
||||
*
|
||||
*
|
||||
* #define NUM_TIMERS 5
|
||||
*
|
||||
*
|
||||
* // An array to hold handles to the created timers.
|
||||
* xTimerHandle xTimers[ NUM_TIMERS ];
|
||||
*
|
||||
*
|
||||
* // An array to hold a count of the number of times each timer expires.
|
||||
* long lExpireCounters[ NUM_TIMERS ] = { 0 };
|
||||
*
|
||||
* // Define a callback function that will be used by multiple timer instances.
|
||||
* // The callback function does nothing but count the number of times the
|
||||
*
|
||||
* // Define a callback function that will be used by multiple timer instances.
|
||||
* // The callback function does nothing but count the number of times the
|
||||
* // associated timer expires, and stop the timer once the timer has expired
|
||||
* // 10 times.
|
||||
* void vTimerCallback( xTIMER *pxTimer )
|
||||
* {
|
||||
* long lArrayIndex;
|
||||
* const long xMaxExpiryCountBeforeStopping = 10;
|
||||
*
|
||||
*
|
||||
* // Optionally do something if the pxTimer parameter is NULL.
|
||||
* configASSERT( pxTimer );
|
||||
*
|
||||
* // Which timer expired?
|
||||
* lArrayIndex = ( long ) pvTimerGetTimerID( pxTimer );
|
||||
*
|
||||
*
|
||||
* // Increment the number of times that pxTimer has expired.
|
||||
* lExpireCounters[ lArrayIndex ] += 1;
|
||||
*
|
||||
|
|
@ -172,11 +172,11 @@ typedef void (*tmrTIMER_CALLBACK)( xTimerHandle xTimer );
|
|||
* xTimerStop( pxTimer, 0 );
|
||||
* }
|
||||
* }
|
||||
*
|
||||
*
|
||||
* void main( void )
|
||||
* {
|
||||
* long x;
|
||||
*
|
||||
*
|
||||
* // Create then start some timers. Starting the timers before the scheduler
|
||||
* // has been started means the timers will start running immediately that
|
||||
* // the scheduler starts.
|
||||
|
|
@ -188,7 +188,7 @@ typedef void (*tmrTIMER_CALLBACK)( xTimerHandle xTimer );
|
|||
* ( void * ) x, // Assign each timer a unique id equal to its array index.
|
||||
* vTimerCallback // Each timer calls the same callback when it expires.
|
||||
* );
|
||||
*
|
||||
*
|
||||
* if( xTimers[ x ] == NULL )
|
||||
* {
|
||||
* // The timer was not created.
|
||||
|
|
@ -197,33 +197,33 @@ typedef void (*tmrTIMER_CALLBACK)( xTimerHandle xTimer );
|
|||
* {
|
||||
* // Start the timer. No block time is specified, and even if one was
|
||||
* // it would be ignored because the scheduler has not yet been
|
||||
* // started.
|
||||
* // started.
|
||||
* if( xTimerStart( xTimers[ x ], 0 ) != pdPASS )
|
||||
* {
|
||||
* // The timer could not be set into the Active state.
|
||||
* }
|
||||
* }
|
||||
* }
|
||||
*
|
||||
*
|
||||
* // ...
|
||||
* // Create tasks here.
|
||||
* // ...
|
||||
*
|
||||
*
|
||||
* // Starting the scheduler will start the timers running as they have already
|
||||
* // been set into the active state.
|
||||
* xTaskStartScheduler();
|
||||
*
|
||||
*
|
||||
* // Should not reach here.
|
||||
* for( ;; );
|
||||
* }
|
||||
*/
|
||||
xTimerHandle xTimerCreate( const signed char *pcTimerName, portTickType xTimerPeriod, unsigned portBASE_TYPE uxAutoReload, void * pvTimerID, tmrTIMER_CALLBACK pxCallbackFunction ) PRIVILEGED_FUNCTION;
|
||||
xTimerHandle xTimerCreate( const signed char *pcTimerName, portTickType xTimerPeriodInTicks, unsigned portBASE_TYPE uxAutoReload, void * pvTimerID, tmrTIMER_CALLBACK pxCallbackFunction ) PRIVILEGED_FUNCTION;
|
||||
|
||||
/**
|
||||
* void *pvTimerGetTimerID( xTimerHandle xTimer );
|
||||
*
|
||||
* Returns the ID assigned to the timer.
|
||||
*
|
||||
*
|
||||
* IDs are assigned to timers using the pvTimerID parameter of the call to
|
||||
* xTimerCreated() that was used to create the timer.
|
||||
*
|
||||
|
|
@ -247,7 +247,7 @@ void *pvTimerGetTimerID( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
* Queries a timer to see if it is active or dormant.
|
||||
*
|
||||
* A timer will be dormant if:
|
||||
* 1) It has been created but not started, or
|
||||
* 1) It has been created but not started, or
|
||||
* 2) It is an expired on-shot timer that has not been restarted.
|
||||
*
|
||||
* Timers are created in the dormant state. The xTimerStart(), xTimerReset(),
|
||||
|
|
@ -272,7 +272,7 @@ void *pvTimerGetTimerID( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
* else
|
||||
* {
|
||||
* // xTimer is not active, do something else.
|
||||
* }
|
||||
* }
|
||||
* }
|
||||
*/
|
||||
portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
||||
|
|
@ -281,20 +281,20 @@ portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
* portBASE_TYPE xTimerStart( xTimerHandle xTimer, portTickType xBlockTime );
|
||||
*
|
||||
* Timer functionality is provided by a timer service/daemon task. Many of the
|
||||
* public FreeRTOS timer API functions send commands to the timer service task
|
||||
* though a queue called the timer command queue. The timer command queue is
|
||||
* private to the kernel itself and is not directly accessible to application
|
||||
* code. The length of the timer command queue is set by the
|
||||
* public FreeRTOS timer API functions send commands to the timer service task
|
||||
* though a queue called the timer command queue. The timer command queue is
|
||||
* private to the kernel itself and is not directly accessible to application
|
||||
* code. The length of the timer command queue is set by the
|
||||
* configTIMER_QUEUE_LENGTH configuration constant.
|
||||
*
|
||||
* xTimerStart() starts a timer that was previously created using the
|
||||
* xTimerStart() starts a timer that was previously created using the
|
||||
* xTimerCreate() API function. If the timer had already been started and was
|
||||
* already in the active state, then xTimerStart() has equivalent functionality
|
||||
* to the xTimerReset() API function.
|
||||
*
|
||||
* Starting a timer ensures the timer is in the active state. If the timer
|
||||
* is not stopped, deleted, or reset in the mean time, the callback function
|
||||
* associated with the timer will get called 'n' ticks after xTimerStart() was
|
||||
* associated with the timer will get called 'n' ticks after xTimerStart() was
|
||||
* called, where 'n' is the timers defined period.
|
||||
*
|
||||
* It is valid to call xTimerStart() before the scheduler has been started, but
|
||||
|
|
@ -309,38 +309,38 @@ portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
*
|
||||
* @param xBlockTime Specifies the time, in ticks, that the calling task should
|
||||
* be held in the Blocked state to wait for the start command to be successfully
|
||||
* sent to the timer command queue, should the queue already be full when
|
||||
* sent to the timer command queue, should the queue already be full when
|
||||
* xTimerStart() was called. xBlockTime is ignored if xTimerStart() is called
|
||||
* before the scheduler is started.
|
||||
* before the scheduler is started.
|
||||
*
|
||||
* @return pdFAIL will be returned if the start command could not be sent to
|
||||
* @return pdFAIL will be returned if the start command could not be sent to
|
||||
* the timer command queue even after xBlockTime ticks had passed. pdPASS will
|
||||
* be returned if the command was successfully sent to the timer command queue.
|
||||
* When the command is actually processed will depend on the priority of the
|
||||
* timer service/daemon task relative to other tasks in the system, although the
|
||||
* timers expiry time is relative to when xTimerStart() is actually called. The
|
||||
* timer service/daemon task priority is set by the configTIMER_TASK_PRIORITY
|
||||
* timers expiry time is relative to when xTimerStart() is actually called. The
|
||||
* timer service/daemon task priority is set by the configTIMER_TASK_PRIORITY
|
||||
* configuration constant.
|
||||
*
|
||||
* Example usage:
|
||||
*
|
||||
*
|
||||
* See the xTimerCreate() API function example usage scenario.
|
||||
*
|
||||
*/
|
||||
#define xTimerStart( xTimer, xBlockTime ) xTimerGenericCommand( xTimer, tmrCOMMAND_START, xTaskGetTickCount(), NULL, xBlockTime )
|
||||
#define xTimerStart( xTimer, xBlockTime ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_START, ( xTaskGetTickCount() ), NULL, ( xBlockTime ) )
|
||||
|
||||
/**
|
||||
* portBASE_TYPE xTimerStop( xTimerHandle xTimer, portTickType xBlockTime );
|
||||
*
|
||||
* Timer functionality is provided by a timer service/daemon task. Many of the
|
||||
* public FreeRTOS timer API functions send commands to the timer service task
|
||||
* though a queue called the timer command queue. The timer command queue is
|
||||
* private to the kernel itself and is not directly accessible to application
|
||||
* code. The length of the timer command queue is set by the
|
||||
* public FreeRTOS timer API functions send commands to the timer service task
|
||||
* though a queue called the timer command queue. The timer command queue is
|
||||
* private to the kernel itself and is not directly accessible to application
|
||||
* code. The length of the timer command queue is set by the
|
||||
* configTIMER_QUEUE_LENGTH configuration constant.
|
||||
*
|
||||
* xTimerStop() stops a timer that was previously started using either of the
|
||||
* The xTimerStart(), xTimerReset(), xTimerStartFromISR(), xTimerResetFromISR(),
|
||||
* xTimerStop() stops a timer that was previously started using either of the
|
||||
* The xTimerStart(), xTimerReset(), xTimerStartFromISR(), xTimerResetFromISR(),
|
||||
* xTimerChangePeriod() or xTimerChangePeriodFromISR() API functions.
|
||||
*
|
||||
* Stopping a timer ensures the timer is not in the active state.
|
||||
|
|
@ -352,74 +352,74 @@ portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
*
|
||||
* @param xBlockTime Specifies the time, in ticks, that the calling task should
|
||||
* be held in the Blocked state to wait for the stop command to be successfully
|
||||
* sent to the timer command queue, should the queue already be full when
|
||||
* sent to the timer command queue, should the queue already be full when
|
||||
* xTimerStop() was called. xBlockTime is ignored if xTimerStop() is called
|
||||
* before the scheduler is started.
|
||||
* before the scheduler is started.
|
||||
*
|
||||
* @return pdFAIL will be returned if the stop command could not be sent to
|
||||
* @return pdFAIL will be returned if the stop command could not be sent to
|
||||
* the timer command queue even after xBlockTime ticks had passed. pdPASS will
|
||||
* be returned if the command was successfully sent to the timer command queue.
|
||||
* When the command is actually processed will depend on the priority of the
|
||||
* timer service/daemon task relative to other tasks in the system. The timer
|
||||
* service/daemon task priority is set by the configTIMER_TASK_PRIORITY
|
||||
* timer service/daemon task relative to other tasks in the system. The timer
|
||||
* service/daemon task priority is set by the configTIMER_TASK_PRIORITY
|
||||
* configuration constant.
|
||||
*
|
||||
* Example usage:
|
||||
*
|
||||
*
|
||||
* See the xTimerCreate() API function example usage scenario.
|
||||
*
|
||||
*/
|
||||
#define xTimerStop( xTimer, xBlockTime ) xTimerGenericCommand( xTimer, tmrCOMMAND_STOP, 0, NULL, xBlockTime )
|
||||
#define xTimerStop( xTimer, xBlockTime ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_STOP, 0U, NULL, ( xBlockTime ) )
|
||||
|
||||
/**
|
||||
* portBASE_TYPE xTimerChangePeriod( xTimerHandle xTimer,
|
||||
* portBASE_TYPE xTimerChangePeriod( xTimerHandle xTimer,
|
||||
* portTickType xNewPeriod,
|
||||
* portTickType xBlockTime );
|
||||
*
|
||||
* Timer functionality is provided by a timer service/daemon task. Many of the
|
||||
* public FreeRTOS timer API functions send commands to the timer service task
|
||||
* though a queue called the timer command queue. The timer command queue is
|
||||
* private to the kernel itself and is not directly accessible to application
|
||||
* code. The length of the timer command queue is set by the
|
||||
* public FreeRTOS timer API functions send commands to the timer service task
|
||||
* though a queue called the timer command queue. The timer command queue is
|
||||
* private to the kernel itself and is not directly accessible to application
|
||||
* code. The length of the timer command queue is set by the
|
||||
* configTIMER_QUEUE_LENGTH configuration constant.
|
||||
*
|
||||
* xTimerChangePeriod() changes the period of a timer that was previously
|
||||
* xTimerChangePeriod() changes the period of a timer that was previously
|
||||
* created using the xTimerCreate() API function.
|
||||
*
|
||||
* xTimerChangePeriod() can be called to change the period of an active or
|
||||
* dormant state timer.
|
||||
*
|
||||
* The configUSE_TIMERS configuration constant must be set to 1 for
|
||||
* The configUSE_TIMERS configuration constant must be set to 1 for
|
||||
* xTimerChangePeriod() to be available.
|
||||
*
|
||||
* @param xTimer The handle of the timer that is having its period changed.
|
||||
*
|
||||
* @param xNewPeriod The new period for xTimer. Timer periods are specified in
|
||||
* tick periods, so the constant portTICK_RATE_MS can be used to convert a time
|
||||
* that has been specified in milliseconds. For example, if the timer must
|
||||
* expire after 100 ticks, then xNewPeriod should be set to 100. Alternatively,
|
||||
* if the timer must expire after 500ms, then xNewPeriod can be set to
|
||||
* @param xNewPeriod The new period for xTimer. Timer periods are specified in
|
||||
* tick periods, so the constant portTICK_RATE_MS can be used to convert a time
|
||||
* that has been specified in milliseconds. For example, if the timer must
|
||||
* expire after 100 ticks, then xNewPeriod should be set to 100. Alternatively,
|
||||
* if the timer must expire after 500ms, then xNewPeriod can be set to
|
||||
* ( 500 / portTICK_RATE_MS ) provided configTICK_RATE_HZ is less than
|
||||
* or equal to 1000.
|
||||
*
|
||||
* @param xBlockTime Specifies the time, in ticks, that the calling task should
|
||||
* be held in the Blocked state to wait for the change period command to be
|
||||
* successfully sent to the timer command queue, should the queue already be
|
||||
* full when xTimerChangePeriod() was called. xBlockTime is ignored if
|
||||
* xTimerChangePeriod() is called before the scheduler is started.
|
||||
* be held in the Blocked state to wait for the change period command to be
|
||||
* successfully sent to the timer command queue, should the queue already be
|
||||
* full when xTimerChangePeriod() was called. xBlockTime is ignored if
|
||||
* xTimerChangePeriod() is called before the scheduler is started.
|
||||
*
|
||||
* @return pdFAIL will be returned if the change period command could not be
|
||||
* sent to the timer command queue even after xBlockTime ticks had passed.
|
||||
* pdPASS will be returned if the command was successfully sent to the timer
|
||||
* command queue. When the command is actually processed will depend on the
|
||||
* priority of the timer service/daemon task relative to other tasks in the
|
||||
* system. The timer service/daemon task priority is set by the
|
||||
* @return pdFAIL will be returned if the change period command could not be
|
||||
* sent to the timer command queue even after xBlockTime ticks had passed.
|
||||
* pdPASS will be returned if the command was successfully sent to the timer
|
||||
* command queue. When the command is actually processed will depend on the
|
||||
* priority of the timer service/daemon task relative to other tasks in the
|
||||
* system. The timer service/daemon task priority is set by the
|
||||
* configTIMER_TASK_PRIORITY configuration constant.
|
||||
*
|
||||
* Example usage:
|
||||
*
|
||||
* // This function assumes xTimer has already been created. If the timer
|
||||
* // referenced by xTimer is already active when it is called, then the timer
|
||||
* // referenced by xTimer is already active when it is called, then the timer
|
||||
* // is deleted. If the timer referenced by xTimer is not active when it is
|
||||
* // called, then the period of the timer is set to 500ms and the timer is
|
||||
* // started.
|
||||
|
|
@ -445,69 +445,69 @@ portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
* // The command could not be sent, even after waiting for 100 ticks
|
||||
* // to pass. Take appropriate action here.
|
||||
* }
|
||||
* }
|
||||
* }
|
||||
* }
|
||||
*/
|
||||
#define xTimerChangePeriod( xTimer, xNewPeriod, xBlockTime ) xTimerGenericCommand( xTimer, tmrCOMMAND_CHANGE_PERIOD, xNewPeriod, NULL, xBlockTime )
|
||||
#define xTimerChangePeriod( xTimer, xNewPeriod, xBlockTime ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_CHANGE_PERIOD, ( xNewPeriod ), NULL, ( xBlockTime ) )
|
||||
|
||||
/**
|
||||
* portBASE_TYPE xTimerDelete( xTimerHandle xTimer, portTickType xBlockTime );
|
||||
*
|
||||
* Timer functionality is provided by a timer service/daemon task. Many of the
|
||||
* public FreeRTOS timer API functions send commands to the timer service task
|
||||
* though a queue called the timer command queue. The timer command queue is
|
||||
* private to the kernel itself and is not directly accessible to application
|
||||
* code. The length of the timer command queue is set by the
|
||||
* public FreeRTOS timer API functions send commands to the timer service task
|
||||
* though a queue called the timer command queue. The timer command queue is
|
||||
* private to the kernel itself and is not directly accessible to application
|
||||
* code. The length of the timer command queue is set by the
|
||||
* configTIMER_QUEUE_LENGTH configuration constant.
|
||||
*
|
||||
* xTimerDelete() deletes a timer that was previously created using the
|
||||
* xTimerCreate() API function.
|
||||
*
|
||||
* The configUSE_TIMERS configuration constant must be set to 1 for
|
||||
* The configUSE_TIMERS configuration constant must be set to 1 for
|
||||
* xTimerDelete() to be available.
|
||||
*
|
||||
* @param xTimer The handle of the timer being deleted.
|
||||
*
|
||||
* @param xBlockTime Specifies the time, in ticks, that the calling task should
|
||||
* be held in the Blocked state to wait for the delete command to be
|
||||
* successfully sent to the timer command queue, should the queue already be
|
||||
* full when xTimerDelete() was called. xBlockTime is ignored if xTimerDelete()
|
||||
* is called before the scheduler is started.
|
||||
* be held in the Blocked state to wait for the delete command to be
|
||||
* successfully sent to the timer command queue, should the queue already be
|
||||
* full when xTimerDelete() was called. xBlockTime is ignored if xTimerDelete()
|
||||
* is called before the scheduler is started.
|
||||
*
|
||||
* @return pdFAIL will be returned if the delete command could not be sent to
|
||||
* @return pdFAIL will be returned if the delete command could not be sent to
|
||||
* the timer command queue even after xBlockTime ticks had passed. pdPASS will
|
||||
* be returned if the command was successfully sent to the timer command queue.
|
||||
* When the command is actually processed will depend on the priority of the
|
||||
* timer service/daemon task relative to other tasks in the system. The timer
|
||||
* service/daemon task priority is set by the configTIMER_TASK_PRIORITY
|
||||
* timer service/daemon task relative to other tasks in the system. The timer
|
||||
* service/daemon task priority is set by the configTIMER_TASK_PRIORITY
|
||||
* configuration constant.
|
||||
*
|
||||
* Example usage:
|
||||
*
|
||||
*
|
||||
* See the xTimerChangePeriod() API function example usage scenario.
|
||||
*/
|
||||
#define xTimerDelete( xTimer, xBlockTime ) xTimerGenericCommand( xTimer, tmrCOMMAND_DELETE, 0, NULL, xBlockTime )
|
||||
#define xTimerDelete( xTimer, xBlockTime ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_DELETE, 0U, NULL, ( xBlockTime ) )
|
||||
|
||||
/**
|
||||
* portBASE_TYPE xTimerReset( xTimerHandle xTimer, portTickType xBlockTime );
|
||||
*
|
||||
* Timer functionality is provided by a timer service/daemon task. Many of the
|
||||
* public FreeRTOS timer API functions send commands to the timer service task
|
||||
* though a queue called the timer command queue. The timer command queue is
|
||||
* private to the kernel itself and is not directly accessible to application
|
||||
* code. The length of the timer command queue is set by the
|
||||
* public FreeRTOS timer API functions send commands to the timer service task
|
||||
* though a queue called the timer command queue. The timer command queue is
|
||||
* private to the kernel itself and is not directly accessible to application
|
||||
* code. The length of the timer command queue is set by the
|
||||
* configTIMER_QUEUE_LENGTH configuration constant.
|
||||
*
|
||||
* xTimerReset() re-starts a timer that was previously created using the
|
||||
* xTimerReset() re-starts a timer that was previously created using the
|
||||
* xTimerCreate() API function. If the timer had already been started and was
|
||||
* already in the active state, then xTimerReset() will cause the timer to
|
||||
* re-evaluate its expiry time so that it is relative to when xTimerReset() was
|
||||
* called. If the timer was in the dormant state then xTimerReset() has
|
||||
* called. If the timer was in the dormant state then xTimerReset() has
|
||||
* equivalent functionality to the xTimerStart() API function.
|
||||
*
|
||||
* Resetting a timer ensures the timer is in the active state. If the timer
|
||||
* is not stopped, deleted, or reset in the mean time, the callback function
|
||||
* associated with the timer will get called 'n' ticks after xTimerReset() was
|
||||
* associated with the timer will get called 'n' ticks after xTimerReset() was
|
||||
* called, where 'n' is the timers defined period.
|
||||
*
|
||||
* It is valid to call xTimerReset() before the scheduler has been started, but
|
||||
|
|
@ -522,23 +522,23 @@ portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
*
|
||||
* @param xBlockTime Specifies the time, in ticks, that the calling task should
|
||||
* be held in the Blocked state to wait for the reset command to be successfully
|
||||
* sent to the timer command queue, should the queue already be full when
|
||||
* sent to the timer command queue, should the queue already be full when
|
||||
* xTimerReset() was called. xBlockTime is ignored if xTimerReset() is called
|
||||
* before the scheduler is started.
|
||||
* before the scheduler is started.
|
||||
*
|
||||
* @return pdFAIL will be returned if the reset command could not be sent to
|
||||
* @return pdFAIL will be returned if the reset command could not be sent to
|
||||
* the timer command queue even after xBlockTime ticks had passed. pdPASS will
|
||||
* be returned if the command was successfully sent to the timer command queue.
|
||||
* When the command is actually processed will depend on the priority of the
|
||||
* timer service/daemon task relative to other tasks in the system, although the
|
||||
* timers expiry time is relative to when xTimerStart() is actually called. The
|
||||
* timer service/daemon task priority is set by the configTIMER_TASK_PRIORITY
|
||||
* timers expiry time is relative to when xTimerStart() is actually called. The
|
||||
* timer service/daemon task priority is set by the configTIMER_TASK_PRIORITY
|
||||
* configuration constant.
|
||||
*
|
||||
* Example usage:
|
||||
*
|
||||
* // When a key is pressed, an LCD back-light is switched on. If 5 seconds pass
|
||||
* // without a key being pressed, then the LCD back-light is switched off. In
|
||||
*
|
||||
* // When a key is pressed, an LCD back-light is switched on. If 5 seconds pass
|
||||
* // without a key being pressed, then the LCD back-light is switched off. In
|
||||
* // this case, the timer is a one-shot timer.
|
||||
*
|
||||
* xTimerHandle xBacklightTimer = NULL;
|
||||
|
|
@ -556,7 +556,7 @@ portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
* void vKeyPressEventHandler( char cKey )
|
||||
* {
|
||||
* // Ensure the LCD back-light is on, then reset the timer that is
|
||||
* // responsible for turning the back-light off after 5 seconds of
|
||||
* // responsible for turning the back-light off after 5 seconds of
|
||||
* // key inactivity. Wait 10 ticks for the command to be successfully sent
|
||||
* // if it cannot be sent immediately.
|
||||
* vSetBacklightState( BACKLIGHT_ON );
|
||||
|
|
@ -572,7 +572,7 @@ portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
* void main( void )
|
||||
* {
|
||||
* long x;
|
||||
*
|
||||
*
|
||||
* // Create then start the one-shot timer that is responsible for turning
|
||||
* // the back-light off if no keys are pressed within a 5 second period.
|
||||
* xBacklightTimer = xTimerCreate( "BacklightTimer", // Just a text name, not used by the kernel.
|
||||
|
|
@ -581,7 +581,7 @@ portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
* 0, // The id is not used by the callback so can take any value.
|
||||
* vBacklightTimerCallback // The callback function that switches the LCD back-light off.
|
||||
* );
|
||||
*
|
||||
*
|
||||
* if( xBacklightTimer == NULL )
|
||||
* {
|
||||
* // The timer was not created.
|
||||
|
|
@ -590,29 +590,29 @@ portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
* {
|
||||
* // Start the timer. No block time is specified, and even if one was
|
||||
* // it would be ignored because the scheduler has not yet been
|
||||
* // started.
|
||||
* // started.
|
||||
* if( xTimerStart( xBacklightTimer, 0 ) != pdPASS )
|
||||
* {
|
||||
* // The timer could not be set into the Active state.
|
||||
* }
|
||||
* }
|
||||
*
|
||||
*
|
||||
* // ...
|
||||
* // Create tasks here.
|
||||
* // ...
|
||||
*
|
||||
*
|
||||
* // Starting the scheduler will start the timer running as it has already
|
||||
* // been set into the active state.
|
||||
* xTaskStartScheduler();
|
||||
*
|
||||
*
|
||||
* // Should not reach here.
|
||||
* for( ;; );
|
||||
* }
|
||||
*/
|
||||
#define xTimerReset( xTimer, xBlockTime ) xTimerGenericCommand( xTimer, tmrCOMMAND_START, xTaskGetTickCount(), NULL, xBlockTime )
|
||||
#define xTimerReset( xTimer, xBlockTime ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_START, ( xTaskGetTickCount() ), NULL, ( xBlockTime ) )
|
||||
|
||||
/**
|
||||
* portBASE_TYPE xTimerStartFromISR( xTimerHandle xTimer,
|
||||
* portBASE_TYPE xTimerStartFromISR( xTimerHandle xTimer,
|
||||
* portBASE_TYPE *pxHigherPriorityTaskWoken );
|
||||
*
|
||||
* A version of xTimerStart() that can be called from an interrupt service
|
||||
|
|
@ -632,20 +632,20 @@ portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
* xTimerStartFromISR() sets this value to pdTRUE then a context switch should
|
||||
* be performed before the interrupt exits.
|
||||
*
|
||||
* @return pdFAIL will be returned if the start command could not be sent to
|
||||
* the timer command queue. pdPASS will be returned if the command was
|
||||
* successfully sent to the timer command queue. When the command is actually
|
||||
* processed will depend on the priority of the timer service/daemon task
|
||||
* relative to other tasks in the system, although the timers expiry time is
|
||||
* relative to when xTimerStartFromISR() is actually called. The timer service/daemon
|
||||
* task priority is set by the configTIMER_TASK_PRIORITY configuration constant.
|
||||
* @return pdFAIL will be returned if the start command could not be sent to
|
||||
* the timer command queue. pdPASS will be returned if the command was
|
||||
* successfully sent to the timer command queue. When the command is actually
|
||||
* processed will depend on the priority of the timer service/daemon task
|
||||
* relative to other tasks in the system, although the timers expiry time is
|
||||
* relative to when xTimerStartFromISR() is actually called. The timer service/daemon
|
||||
* task priority is set by the configTIMER_TASK_PRIORITY configuration constant.
|
||||
*
|
||||
* Example usage:
|
||||
*
|
||||
* // This scenario assumes xBacklightTimer has already been created. When a
|
||||
* // key is pressed, an LCD back-light is switched on. If 5 seconds pass
|
||||
* // without a key being pressed, then the LCD back-light is switched off. In
|
||||
* // this case, the timer is a one-shot timer, and unlike the example given for
|
||||
*
|
||||
* // This scenario assumes xBacklightTimer has already been created. When a
|
||||
* // key is pressed, an LCD back-light is switched on. If 5 seconds pass
|
||||
* // without a key being pressed, then the LCD back-light is switched off. In
|
||||
* // this case, the timer is a one-shot timer, and unlike the example given for
|
||||
* // the xTimerReset() function, the key press event handler is an interrupt
|
||||
* // service routine.
|
||||
*
|
||||
|
|
@ -664,7 +664,7 @@ portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
* portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
|
||||
*
|
||||
* // Ensure the LCD back-light is on, then restart the timer that is
|
||||
* // responsible for turning the back-light off after 5 seconds of
|
||||
* // responsible for turning the back-light off after 5 seconds of
|
||||
* // key inactivity. This is an interrupt service routine so can only
|
||||
* // call FreeRTOS API functions that end in "FromISR".
|
||||
* vSetBacklightState( BACKLIGHT_ON );
|
||||
|
|
@ -693,10 +693,10 @@ portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
* }
|
||||
* }
|
||||
*/
|
||||
#define xTimerStartFromISR( xTimer, pxHigherPriorityTaskWoken ) xTimerGenericCommand( xTimer, tmrCOMMAND_START, xTaskGetTickCountFromISR(), pxHigherPriorityTaskWoken, 0 )
|
||||
#define xTimerStartFromISR( xTimer, pxHigherPriorityTaskWoken ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_START, ( xTaskGetTickCountFromISR() ), ( pxHigherPriorityTaskWoken ), 0U )
|
||||
|
||||
/**
|
||||
* portBASE_TYPE xTimerStopFromISR( xTimerHandle xTimer,
|
||||
* portBASE_TYPE xTimerStopFromISR( xTimerHandle xTimer,
|
||||
* portBASE_TYPE *pxHigherPriorityTaskWoken );
|
||||
*
|
||||
* A version of xTimerStop() that can be called from an interrupt service
|
||||
|
|
@ -716,12 +716,12 @@ portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
* xTimerStopFromISR() sets this value to pdTRUE then a context switch should
|
||||
* be performed before the interrupt exits.
|
||||
*
|
||||
* @return pdFAIL will be returned if the stop command could not be sent to
|
||||
* the timer command queue. pdPASS will be returned if the command was
|
||||
* successfully sent to the timer command queue. When the command is actually
|
||||
* processed will depend on the priority of the timer service/daemon task
|
||||
* relative to other tasks in the system. The timer service/daemon task
|
||||
* priority is set by the configTIMER_TASK_PRIORITY configuration constant.
|
||||
* @return pdFAIL will be returned if the stop command could not be sent to
|
||||
* the timer command queue. pdPASS will be returned if the command was
|
||||
* successfully sent to the timer command queue. When the command is actually
|
||||
* processed will depend on the priority of the timer service/daemon task
|
||||
* relative to other tasks in the system. The timer service/daemon task
|
||||
* priority is set by the configTIMER_TASK_PRIORITY configuration constant.
|
||||
*
|
||||
* Example usage:
|
||||
*
|
||||
|
|
@ -755,45 +755,45 @@ portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
* }
|
||||
* }
|
||||
*/
|
||||
#define xTimerStopFromISR( xTimer, pxHigherPriorityTaskWoken ) xTimerGenericCommand( xTimer, tmrCOMMAND_STOP, 0, pxHigherPriorityTaskWoken, 0 )
|
||||
#define xTimerStopFromISR( xTimer, pxHigherPriorityTaskWoken ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_STOP, 0, ( pxHigherPriorityTaskWoken ), 0U )
|
||||
|
||||
/**
|
||||
* portBASE_TYPE xTimerChangePeriodFromISR( xTimerHandle xTimer,
|
||||
* portBASE_TYPE xTimerChangePeriodFromISR( xTimerHandle xTimer,
|
||||
* portTickType xNewPeriod,
|
||||
* portBASE_TYPE *pxHigherPriorityTaskWoken );
|
||||
*
|
||||
* A version of xTimerChangePeriod() that can be called from an interrupt
|
||||
* A version of xTimerChangePeriod() that can be called from an interrupt
|
||||
* service routine.
|
||||
*
|
||||
* @param xTimer The handle of the timer that is having its period changed.
|
||||
*
|
||||
* @param xNewPeriod The new period for xTimer. Timer periods are specified in
|
||||
* tick periods, so the constant portTICK_RATE_MS can be used to convert a time
|
||||
* that has been specified in milliseconds. For example, if the timer must
|
||||
* expire after 100 ticks, then xNewPeriod should be set to 100. Alternatively,
|
||||
* if the timer must expire after 500ms, then xNewPeriod can be set to
|
||||
* @param xNewPeriod The new period for xTimer. Timer periods are specified in
|
||||
* tick periods, so the constant portTICK_RATE_MS can be used to convert a time
|
||||
* that has been specified in milliseconds. For example, if the timer must
|
||||
* expire after 100 ticks, then xNewPeriod should be set to 100. Alternatively,
|
||||
* if the timer must expire after 500ms, then xNewPeriod can be set to
|
||||
* ( 500 / portTICK_RATE_MS ) provided configTICK_RATE_HZ is less than
|
||||
* or equal to 1000.
|
||||
*
|
||||
* @param pxHigherPriorityTaskWoken The timer service/daemon task spends most
|
||||
* of its time in the Blocked state, waiting for messages to arrive on the timer
|
||||
* command queue. Calling xTimerChangePeriodFromISR() writes a message to the
|
||||
* command queue. Calling xTimerChangePeriodFromISR() writes a message to the
|
||||
* timer command queue, so has the potential to transition the timer service/
|
||||
* daemon task out of the Blocked state. If calling xTimerChangePeriodFromISR()
|
||||
* causes the timer service/daemon task to leave the Blocked state, and the
|
||||
* timer service/daemon task has a priority equal to or greater than the
|
||||
* currently executing task (the task that was interrupted), then
|
||||
* *pxHigherPriorityTaskWoken will get set to pdTRUE internally within the
|
||||
* xTimerChangePeriodFromISR() function. If xTimerChangePeriodFromISR() sets
|
||||
* this value to pdTRUE then a context switch should be performed before the
|
||||
* daemon task out of the Blocked state. If calling xTimerChangePeriodFromISR()
|
||||
* causes the timer service/daemon task to leave the Blocked state, and the
|
||||
* timer service/daemon task has a priority equal to or greater than the
|
||||
* currently executing task (the task that was interrupted), then
|
||||
* *pxHigherPriorityTaskWoken will get set to pdTRUE internally within the
|
||||
* xTimerChangePeriodFromISR() function. If xTimerChangePeriodFromISR() sets
|
||||
* this value to pdTRUE then a context switch should be performed before the
|
||||
* interrupt exits.
|
||||
*
|
||||
* @return pdFAIL will be returned if the command to change the timers period
|
||||
* could not be sent to the timer command queue. pdPASS will be returned if the
|
||||
* command was successfully sent to the timer command queue. When the command
|
||||
* is actually processed will depend on the priority of the timer service/daemon
|
||||
* task relative to other tasks in the system. The timer service/daemon task
|
||||
* priority is set by the configTIMER_TASK_PRIORITY configuration constant.
|
||||
* could not be sent to the timer command queue. pdPASS will be returned if the
|
||||
* command was successfully sent to the timer command queue. When the command
|
||||
* is actually processed will depend on the priority of the timer service/daemon
|
||||
* task relative to other tasks in the system. The timer service/daemon task
|
||||
* priority is set by the configTIMER_TASK_PRIORITY configuration constant.
|
||||
*
|
||||
* Example usage:
|
||||
*
|
||||
|
|
@ -811,7 +811,7 @@ portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
* // FreeRTOS API functions that end in "FromISR" can be used.
|
||||
* if( xTimerChangePeriodFromISR( xTimer, &xHigherPriorityTaskWoken ) != pdPASS )
|
||||
* {
|
||||
* // The command to change the timers period was not executed
|
||||
* // The command to change the timers period was not executed
|
||||
* // successfully. Take appropriate action here.
|
||||
* }
|
||||
*
|
||||
|
|
@ -827,10 +827,10 @@ portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
* }
|
||||
* }
|
||||
*/
|
||||
#define xTimerChangePeriodFromISR( xTimer, xNewPeriod, pxHigherPriorityTaskWoken ) xTimerGenericCommand( xTimer, tmrCOMMAND_CHANGE_PERIOD, xNewPeriod, pxHigherPriorityTaskWoken, 0 )
|
||||
#define xTimerChangePeriodFromISR( xTimer, xNewPeriod, pxHigherPriorityTaskWoken ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_CHANGE_PERIOD, ( xNewPeriod ), ( pxHigherPriorityTaskWoken ), 0U )
|
||||
|
||||
/**
|
||||
* portBASE_TYPE xTimerResetFromISR( xTimerHandle xTimer,
|
||||
* portBASE_TYPE xTimerResetFromISR( xTimerHandle xTimer,
|
||||
* portBASE_TYPE *pxHigherPriorityTaskWoken );
|
||||
*
|
||||
* A version of xTimerReset() that can be called from an interrupt service
|
||||
|
|
@ -851,20 +851,20 @@ portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
* xTimerResetFromISR() sets this value to pdTRUE then a context switch should
|
||||
* be performed before the interrupt exits.
|
||||
*
|
||||
* @return pdFAIL will be returned if the reset command could not be sent to
|
||||
* the timer command queue. pdPASS will be returned if the command was
|
||||
* successfully sent to the timer command queue. When the command is actually
|
||||
* processed will depend on the priority of the timer service/daemon task
|
||||
* relative to other tasks in the system, although the timers expiry time is
|
||||
* relative to when xTimerResetFromISR() is actually called. The timer service/daemon
|
||||
* task priority is set by the configTIMER_TASK_PRIORITY configuration constant.
|
||||
* @return pdFAIL will be returned if the reset command could not be sent to
|
||||
* the timer command queue. pdPASS will be returned if the command was
|
||||
* successfully sent to the timer command queue. When the command is actually
|
||||
* processed will depend on the priority of the timer service/daemon task
|
||||
* relative to other tasks in the system, although the timers expiry time is
|
||||
* relative to when xTimerResetFromISR() is actually called. The timer service/daemon
|
||||
* task priority is set by the configTIMER_TASK_PRIORITY configuration constant.
|
||||
*
|
||||
* Example usage:
|
||||
*
|
||||
* // This scenario assumes xBacklightTimer has already been created. When a
|
||||
* // key is pressed, an LCD back-light is switched on. If 5 seconds pass
|
||||
* // without a key being pressed, then the LCD back-light is switched off. In
|
||||
* // this case, the timer is a one-shot timer, and unlike the example given for
|
||||
*
|
||||
* // This scenario assumes xBacklightTimer has already been created. When a
|
||||
* // key is pressed, an LCD back-light is switched on. If 5 seconds pass
|
||||
* // without a key being pressed, then the LCD back-light is switched off. In
|
||||
* // this case, the timer is a one-shot timer, and unlike the example given for
|
||||
* // the xTimerReset() function, the key press event handler is an interrupt
|
||||
* // service routine.
|
||||
*
|
||||
|
|
@ -883,7 +883,7 @@ portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
* portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
|
||||
*
|
||||
* // Ensure the LCD back-light is on, then reset the timer that is
|
||||
* // responsible for turning the back-light off after 5 seconds of
|
||||
* // responsible for turning the back-light off after 5 seconds of
|
||||
* // key inactivity. This is an interrupt service routine so can only
|
||||
* // call FreeRTOS API functions that end in "FromISR".
|
||||
* vSetBacklightState( BACKLIGHT_ON );
|
||||
|
|
@ -912,7 +912,7 @@ portBASE_TYPE xTimerIsTimerActive( xTimerHandle xTimer ) PRIVILEGED_FUNCTION;
|
|||
* }
|
||||
* }
|
||||
*/
|
||||
#define xTimerResetFromISR( xTimer, pxHigherPriorityTaskWoken ) xTimerGenericCommand( xTimer, tmrCOMMAND_START, xTaskGetTickCountFromISR(), pxHigherPriorityTaskWoken, 0 )
|
||||
#define xTimerResetFromISR( xTimer, pxHigherPriorityTaskWoken ) xTimerGenericCommand( ( xTimer ), tmrCOMMAND_START, ( xTaskGetTickCountFromISR() ), ( pxHigherPriorityTaskWoken ), 0U )
|
||||
|
||||
/*
|
||||
* Functions beyond this part are not part of the public API and are intended
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue