/*\r
- FreeRTOS V8.0.0:rc1 - Copyright (C) 2014 Real Time Engineers Ltd.\r
+ FreeRTOS V9.0.0rc2 - Copyright (C) 2016 Real Time Engineers Ltd.\r
All rights reserved\r
\r
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.\r
\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS provides completely free yet professionally developed, *\r
- * robust, strictly quality controlled, supported, and cross *\r
- * platform software that has become a de facto standard. *\r
- * *\r
- * Help yourself get started quickly and support the FreeRTOS *\r
- * project by purchasing a FreeRTOS tutorial book, reference *\r
- * manual, or both from: http://www.FreeRTOS.org/Documentation *\r
- * *\r
- * Thank you! *\r
- * *\r
- ***************************************************************************\r
-\r
This file is part of the FreeRTOS distribution.\r
\r
FreeRTOS is free software; you can redistribute it and/or modify it under\r
the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.\r
+ Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception.\r
\r
- >>! NOTE: The modification to the GPL is included to allow you to distribute\r
- >>! a combined work that includes FreeRTOS without being obliged to provide\r
- >>! the source code for proprietary components outside of the FreeRTOS\r
- >>! kernel.\r
+ ***************************************************************************\r
+ >>! NOTE: The modification to the GPL is included to allow you to !<<\r
+ >>! distribute a combined work that includes FreeRTOS without being !<<\r
+ >>! obliged to provide the source code for proprietary components !<<\r
+ >>! outside of the FreeRTOS kernel. !<<\r
+ ***************************************************************************\r
\r
FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
- FOR A PARTICULAR PURPOSE. Full license text is available from the following\r
+ FOR A PARTICULAR PURPOSE. Full license text is available on the following\r
link: http://www.freertos.org/a00114.html\r
\r
- 1 tab == 4 spaces!\r
-\r
***************************************************************************\r
* *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong?" *\r
+ * FreeRTOS provides completely free yet professionally developed, *\r
+ * robust, strictly quality controlled, supported, and cross *\r
+ * platform software that is more than just the market leader, it *\r
+ * is the industry's de facto standard. *\r
* *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
+ * Help yourself get started quickly while simultaneously helping *\r
+ * to support the FreeRTOS project by purchasing a FreeRTOS *\r
+ * tutorial book, reference manual, or both: *\r
+ * http://www.FreeRTOS.org/Documentation *\r
* *\r
***************************************************************************\r
\r
- http://www.FreeRTOS.org - Documentation, books, training, latest versions,\r
- license and Real Time Engineers Ltd. contact details.\r
+ http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading\r
+ the FAQ page "My application does not run, what could be wrong?". Have you\r
+ defined configASSERT()?\r
+\r
+ http://www.FreeRTOS.org/support - In return for receiving this top quality\r
+ embedded software for free we request you assist our global community by\r
+ participating in the support forum.\r
+\r
+ http://www.FreeRTOS.org/training - Investing in training allows your team to\r
+ be as productive as possible as early as possible. Now you can receive\r
+ FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers\r
+ Ltd, and the world's leading authority on the world's leading RTOS.\r
\r
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
including FreeRTOS+Trace - an indispensable productivity tool, a DOS\r
compatible FAT file system, and our tiny thread aware UDP/IP stack.\r
\r
- http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High\r
- Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS\r
- licenses offer ticketed support, indemnification and middleware.\r
+ http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.\r
+ Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.\r
+\r
+ http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High\r
+ Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS\r
+ licenses offer ticketed support, indemnification and commercial middleware.\r
\r
http://www.SafeRTOS.com - High Integrity Systems also provide a safety\r
engineered and independently SIL3 certified version for use in safety and\r
privileged Vs unprivileged linkage and placement. */\r
#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE /*lint !e961 !e750. */\r
\r
-#if ( INCLUDE_xEventGroupSetBitFromISR == 1 ) && ( configUSE_TIMERS == 0 )\r
- #error configUSE_TIMERS must be set to 1 to make the xEventGroupSetBitFromISR() function available.\r
-#endif\r
-\r
-#if ( INCLUDE_xEventGroupSetBitFromISR == 1 ) && ( INCLUDE_xTimerPendFunctionCall == 0 )\r
- #error INCLUDE_xTimerPendFunctionCall must also be set to one to make the xEventGroupSetBitFromISR() function available.\r
-#endif\r
-\r
/* The following bit fields convey control information in a task's event list\r
item value. It is important they don't clash with the\r
taskEVENT_LIST_ITEM_VALUE_IN_USE definition. */\r
#define eventEVENT_BITS_CONTROL_BYTES 0xff000000UL\r
#endif\r
\r
-typedef struct EVENT_GROUP_DEFINITION\r
+typedef struct xEventGroupDefinition\r
{\r
EventBits_t uxEventBits;\r
List_t xTasksWaitingForBits; /*< List of tasks waiting for a bit to be set. */\r
UBaseType_t uxEventGroupNumber;\r
#endif\r
\r
+ #if( ( configSUPPORT_STATIC_ALLOCATION == 1 ) && ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) )\r
+ uint8_t ucStaticallyAllocated; /*< Set to pdTRUE if the event group is statically allocated to ensure no attempt is made to free the memory. */\r
+ #endif\r
} EventGroup_t;\r
\r
/*-----------------------------------------------------------*/\r
* wait condition is met if any of the bits set in uxBitsToWait for are also set\r
* in uxCurrentEventBits.\r
*/\r
-static BaseType_t prvTestWaitCondition( const EventBits_t uxCurrentEventBits, const EventBits_t uxBitsToWaitFor, const BaseType_t xWaitForAllBits );\r
+static BaseType_t prvTestWaitCondition( const EventBits_t uxCurrentEventBits, const EventBits_t uxBitsToWaitFor, const BaseType_t xWaitForAllBits ) PRIVILEGED_FUNCTION;\r
\r
/*-----------------------------------------------------------*/\r
\r
-EventGroupHandle_t xEventGroupCreate( void )\r
-{\r
-EventGroup_t *pxEventBits;\r
+#if( configSUPPORT_STATIC_ALLOCATION == 1 )\r
\r
- pxEventBits = pvPortMalloc( sizeof( EventGroup_t ) );\r
- if( pxEventBits != NULL )\r
+ EventGroupHandle_t xEventGroupCreateStatic( StaticEventGroup_t *pxEventGroupBuffer )\r
{\r
- pxEventBits->uxEventBits = 0;\r
- vListInitialise( &( pxEventBits->xTasksWaitingForBits ) );\r
- traceEVENT_GROUP_CREATE( pxEventBits );\r
+ EventGroup_t *pxEventBits;\r
+\r
+ /* A StaticEventGroup_t object must be provided. */\r
+ configASSERT( pxEventGroupBuffer );\r
+\r
+ /* The user has provided a statically allocated event group - use it. */\r
+ pxEventBits = ( EventGroup_t * ) pxEventGroupBuffer; /*lint !e740 EventGroup_t and StaticEventGroup_t are guaranteed to have the same size and alignment requirement - checked by configASSERT(). */\r
+\r
+ if( pxEventBits != NULL )\r
+ {\r
+ pxEventBits->uxEventBits = 0;\r
+ vListInitialise( &( pxEventBits->xTasksWaitingForBits ) );\r
+\r
+ #if( configSUPPORT_DYNAMIC_ALLOCATION == 1 )\r
+ {\r
+ /* Both static and dynamic allocation can be used, so note that\r
+ this event group was created statically in case the event group\r
+ is later deleted. */\r
+ pxEventBits->ucStaticallyAllocated = pdTRUE;\r
+ }\r
+ #endif /* configSUPPORT_DYNAMIC_ALLOCATION */\r
+\r
+ traceEVENT_GROUP_CREATE( pxEventBits );\r
+ }\r
+ else\r
+ {\r
+ traceEVENT_GROUP_CREATE_FAILED();\r
+ }\r
+\r
+ return ( EventGroupHandle_t ) pxEventBits;\r
}\r
- else\r
+\r
+#endif /* configSUPPORT_STATIC_ALLOCATION */\r
+/*-----------------------------------------------------------*/\r
+\r
+#if( configSUPPORT_DYNAMIC_ALLOCATION == 1 )\r
+\r
+ EventGroupHandle_t xEventGroupCreate( void )\r
{\r
- traceEVENT_GROUP_CREATE_FAILED();\r
+ EventGroup_t *pxEventBits;\r
+\r
+ /* Allocate the event group. */\r
+ pxEventBits = ( EventGroup_t * ) pvPortMalloc( sizeof( EventGroup_t ) );\r
+\r
+ if( pxEventBits != NULL )\r
+ {\r
+ pxEventBits->uxEventBits = 0;\r
+ vListInitialise( &( pxEventBits->xTasksWaitingForBits ) );\r
+\r
+ #if( configSUPPORT_STATIC_ALLOCATION == 1 )\r
+ {\r
+ /* Both static and dynamic allocation can be used, so note this\r
+ event group was allocated statically in case the event group is\r
+ later deleted. */\r
+ pxEventBits->ucStaticallyAllocated = pdFALSE;\r
+ }\r
+ #endif /* configSUPPORT_STATIC_ALLOCATION */\r
+\r
+ traceEVENT_GROUP_CREATE( pxEventBits );\r
+ }\r
+ else\r
+ {\r
+ traceEVENT_GROUP_CREATE_FAILED();\r
+ }\r
+\r
+ return ( EventGroupHandle_t ) pxEventBits;\r
}\r
\r
- return ( EventGroupHandle_t ) pxEventBits;\r
-}\r
+#endif /* configSUPPORT_DYNAMIC_ALLOCATION */\r
/*-----------------------------------------------------------*/\r
\r
EventBits_t xEventGroupSync( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToSet, const EventBits_t uxBitsToWaitFor, TickType_t xTicksToWait )\r
\r
/* Rendezvous always clear the bits. They will have been cleared\r
already unless this is the only task in the rendezvous. */\r
- pxEventBits->uxEventBits &= uxBitsToWaitFor;\r
+ pxEventBits->uxEventBits &= ~uxBitsToWaitFor;\r
\r
xTicksToWait = 0;\r
}\r
/* Although the task got here because it timed out before the\r
bits it was waiting for were set, it is possible that since it\r
unblocked another task has set the bits. If this is the case\r
- then it may be required to clear the bits before exiting. */\r
+ then it needs to clear the bits before exiting. */\r
if( ( uxReturn & uxBitsToWaitFor ) == uxBitsToWaitFor )\r
{\r
pxEventBits->uxEventBits &= ~uxBitsToWaitFor;\r
}\r
else\r
{\r
- /* The task unblocked because the bits were set. Clear the control\r
- bits before returning the value. */\r
- uxReturn &= ~eventEVENT_BITS_CONTROL_BYTES;\r
+ /* The task unblocked because the bits were set. */\r
}\r
+\r
+ /* Control bits might be set as the task had blocked should not be\r
+ returned. */\r
+ uxReturn &= ~eventEVENT_BITS_CONTROL_BYTES;\r
}\r
\r
traceEVENT_GROUP_SYNC_END( xEventGroup, uxBitsToSet, uxBitsToWaitFor, xTimeoutOccurred );\r
+\r
return uxReturn;\r
}\r
/*-----------------------------------------------------------*/\r
\r
/* Check the user is not attempting to wait on the bits used by the kernel\r
itself, and that at least one bit is being requested. */\r
+ configASSERT( xEventGroup );\r
configASSERT( ( uxBitsToWaitFor & eventEVENT_BITS_CONTROL_BYTES ) == 0 );\r
configASSERT( uxBitsToWaitFor != 0 );\r
#if ( ( INCLUDE_xTaskGetSchedulerState == 1 ) || ( configUSE_TIMERS == 1 ) )\r
}\r
taskEXIT_CRITICAL();\r
\r
+ /* Prevent compiler warnings when trace macros are not used. */\r
xTimeoutOccurred = pdFALSE;\r
}\r
else\r
{\r
- /* The task unblocked because the bits were set. Clear the control\r
- bits before returning the value. */\r
- uxReturn &= ~eventEVENT_BITS_CONTROL_BYTES;\r
+ /* The task unblocked because the bits were set. */\r
}\r
+\r
+ /* The task blocked so control bits may have been set. */\r
+ uxReturn &= ~eventEVENT_BITS_CONTROL_BYTES;\r
}\r
traceEVENT_GROUP_WAIT_BITS_END( xEventGroup, uxBitsToWaitFor, xTimeoutOccurred );\r
+\r
return uxReturn;\r
}\r
/*-----------------------------------------------------------*/\r
\r
/* Check the user is not attempting to clear the bits used by the kernel\r
itself. */\r
+ configASSERT( xEventGroup );\r
configASSERT( ( uxBitsToClear & eventEVENT_BITS_CONTROL_BYTES ) == 0 );\r
\r
taskENTER_CRITICAL();\r
}\r
/*-----------------------------------------------------------*/\r
\r
-EventBits_t xEventGroupClearBitsFromISR( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToClear )\r
+#if ( ( configUSE_TRACE_FACILITY == 1 ) && ( INCLUDE_xTimerPendFunctionCall == 1 ) && ( configUSE_TIMERS == 1 ) )\r
+\r
+ BaseType_t xEventGroupClearBitsFromISR( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToClear )\r
+ {\r
+ BaseType_t xReturn;\r
+\r
+ traceEVENT_GROUP_CLEAR_BITS_FROM_ISR( xEventGroup, uxBitsToClear );\r
+ xReturn = xTimerPendFunctionCallFromISR( vEventGroupClearBitsCallback, ( void * ) xEventGroup, ( uint32_t ) uxBitsToClear, NULL );\r
+\r
+ return xReturn;\r
+ }\r
+\r
+#endif\r
+/*-----------------------------------------------------------*/\r
+\r
+EventBits_t xEventGroupGetBitsFromISR( EventGroupHandle_t xEventGroup )\r
{\r
UBaseType_t uxSavedInterruptStatus;\r
EventGroup_t *pxEventBits = ( EventGroup_t * ) xEventGroup;\r
EventBits_t uxReturn;\r
\r
- /* Check the user is not attempting to clear the bits used by the kernel\r
- itself. */\r
- configASSERT( ( uxBitsToClear & eventEVENT_BITS_CONTROL_BYTES ) == 0 );\r
-\r
uxSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();\r
{\r
- traceEVENT_GROUP_CLEAR_BITS_FROM_ISR( xEventGroup, uxBitsToClear );\r
-\r
- /* The value returned is the event group value prior to the bits being\r
- cleared. */\r
uxReturn = pxEventBits->uxEventBits;\r
-\r
- /* Clear the bits. */\r
- pxEventBits->uxEventBits &= ~uxBitsToClear;\r
}\r
portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );\r
\r
\r
/* Check the user is not attempting to set the bits used by the kernel\r
itself. */\r
+ configASSERT( xEventGroup );\r
configASSERT( ( uxBitsToSet & eventEVENT_BITS_CONTROL_BYTES ) == 0 );\r
\r
pxList = &( pxEventBits->xTasksWaitingForBits );\r
/* Unblock the task, returning 0 as the event list is being deleted\r
and cannot therefore have any bits set. */\r
configASSERT( pxTasksWaitingForBits->xListEnd.pxNext != ( ListItem_t * ) &( pxTasksWaitingForBits->xListEnd ) );\r
- ( void ) xTaskRemoveFromUnorderedEventList( pxTasksWaitingForBits->xListEnd.pxNext, ( TickType_t ) eventUNBLOCKED_DUE_TO_BIT_SET );\r
+ ( void ) xTaskRemoveFromUnorderedEventList( pxTasksWaitingForBits->xListEnd.pxNext, eventUNBLOCKED_DUE_TO_BIT_SET );\r
}\r
\r
- vPortFree( pxEventBits );\r
+ #if( ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) && ( configSUPPORT_STATIC_ALLOCATION == 0 ) )\r
+ {\r
+ /* The event group can only have been allocated dynamically - free\r
+ it again. */\r
+ vPortFree( pxEventBits );\r
+ }\r
+ #elif( ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) && ( configSUPPORT_STATIC_ALLOCATION == 1 ) )\r
+ {\r
+ /* The event group could have been allocated statically or\r
+ dynamically, so check before attempting to free the memory. */\r
+ if( pxEventBits->ucStaticallyAllocated == ( uint8_t ) pdFALSE )\r
+ {\r
+ vPortFree( pxEventBits );\r
+ }\r
+ else\r
+ {\r
+ mtCOVERAGE_TEST_MARKER();\r
+ }\r
+ }\r
+ #endif /* configSUPPORT_DYNAMIC_ALLOCATION */\r
}\r
( void ) xTaskResumeAll();\r
}\r
}\r
/*-----------------------------------------------------------*/\r
\r
+/* For internal use only - execute a 'clear bits' command that was pended from\r
+an interrupt. */\r
+void vEventGroupClearBitsCallback( void *pvEventGroup, const uint32_t ulBitsToClear )\r
+{\r
+ ( void ) xEventGroupClearBits( pvEventGroup, ( EventBits_t ) ulBitsToClear );\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
static BaseType_t prvTestWaitCondition( const EventBits_t uxCurrentEventBits, const EventBits_t uxBitsToWaitFor, const BaseType_t xWaitForAllBits )\r
{\r
BaseType_t xWaitConditionMet = pdFALSE;\r
}\r
/*-----------------------------------------------------------*/\r
\r
-#if (configUSE_TRACE_FACILITY == 1)\r
+#if ( ( configUSE_TRACE_FACILITY == 1 ) && ( INCLUDE_xTimerPendFunctionCall == 1 ) && ( configUSE_TIMERS == 1 ) )\r
+\r
BaseType_t xEventGroupSetBitsFromISR( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToSet, BaseType_t *pxHigherPriorityTaskWoken )\r
{\r
BaseType_t xReturn;\r
\r
- traceEVENT_GROUP_SET_BITS_FROM_ISR( xEventGroup, uxBitsToSet ); \r
+ traceEVENT_GROUP_SET_BITS_FROM_ISR( xEventGroup, uxBitsToSet );\r
xReturn = xTimerPendFunctionCallFromISR( vEventGroupSetBitsCallback, ( void * ) xEventGroup, ( uint32_t ) uxBitsToSet, pxHigherPriorityTaskWoken );\r
\r
return xReturn;\r
}\r
+\r
#endif\r
/*-----------------------------------------------------------*/\r
\r
#if (configUSE_TRACE_FACILITY == 1)\r
+\r
UBaseType_t uxEventGroupGetNumber( void* xEventGroup )\r
{\r
UBaseType_t xReturn;\r
\r
return xReturn;\r
}\r
+\r
#endif\r
\r
projects / freertos / blobdiff