/*\r
- FreeRTOS V8.0.0:rc1 - Copyright (C) 2014 Real Time Engineers Ltd.\r
+ FreeRTOS V8.2.3 - Copyright (C) 2015 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
/**\r
* event_groups.h\r
*<pre>\r
- EventBits_t xEventGroupClearBitsFromISR( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToClear );\r
+ BaseType_t xEventGroupClearBitsFromISR( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToSet );\r
</pre>\r
*\r
- * A version of xEventGroupClearBits() that can be called from an interrupt\r
- * service routine. See the xEventGroupClearBits() documentation.\r
+ * A version of xEventGroupClearBits() that can be called from an interrupt.\r
*\r
- * \defgroup xEventGroupClearBitsFromISR xEventGroupClearBitsFromISR\r
+ * Setting bits in an event group is not a deterministic operation because there\r
+ * are an unknown number of tasks that may be waiting for the bit or bits being\r
+ * set. FreeRTOS does not allow nondeterministic operations to be performed\r
+ * while interrupts are disabled, so protects event groups that are accessed\r
+ * from tasks by suspending the scheduler rather than disabling interrupts. As\r
+ * a result event groups cannot be accessed directly from an interrupt service\r
+ * routine. Therefore xEventGroupClearBitsFromISR() sends a message to the \r
+ * timer task to have the clear operation performed in the context of the timer \r
+ * task.\r
+ *\r
+ * @param xEventGroup The event group in which the bits are to be cleared.\r
+ *\r
+ * @param uxBitsToClear A bitwise value that indicates the bit or bits to clear.\r
+ * For example, to clear bit 3 only, set uxBitsToClear to 0x08. To clear bit 3\r
+ * and bit 0 set uxBitsToClear to 0x09.\r
+ *\r
+ * @return If the request to execute the function was posted successfully then \r
+ * pdPASS is returned, otherwise pdFALSE is returned. pdFALSE will be returned \r
+ * if the timer service queue was full.\r
+ *\r
+ * Example usage:\r
+ <pre>\r
+ #define BIT_0 ( 1 << 0 )\r
+ #define BIT_4 ( 1 << 4 )\r
+\r
+ // An event group which it is assumed has already been created by a call to\r
+ // xEventGroupCreate().\r
+ EventGroupHandle_t xEventGroup;\r
+\r
+ void anInterruptHandler( void )\r
+ {\r
+ // Clear bit 0 and bit 4 in xEventGroup.\r
+ xResult = xEventGroupClearBitsFromISR(\r
+ xEventGroup, // The event group being updated.\r
+ BIT_0 | BIT_4 ); // The bits being set.\r
+\r
+ if( xResult == pdPASS )\r
+ {\r
+ // The message was posted successfully.\r
+ }\r
+ }\r
+ </pre>\r
+ * \defgroup xEventGroupSetBitsFromISR xEventGroupSetBitsFromISR\r
* \ingroup EventGroup\r
*/\r
-EventBits_t xEventGroupClearBitsFromISR( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToClear ) PRIVILEGED_FUNCTION;\r
+#if( configUSE_TRACE_FACILITY == 1 )\r
+ BaseType_t xEventGroupClearBitsFromISR( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToSet ) PRIVILEGED_FUNCTION;\r
+#else\r
+ #define xEventGroupClearBitsFromISR( xEventGroup, uxBitsToClear ) xTimerPendFunctionCallFromISR( vEventGroupClearBitsCallback, ( void * ) xEventGroup, ( uint32_t ) uxBitsToClear, NULL )\r
+#endif\r
\r
/**\r
* event_groups.h\r
* \ingroup EventGroup\r
*/\r
#if( configUSE_TRACE_FACILITY == 1 )\r
- BaseType_t xEventGroupSetBitsFromISR( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToSet, BaseType_t *pxHigherPriorityTaskWoken );\r
+ BaseType_t xEventGroupSetBitsFromISR( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToSet, BaseType_t *pxHigherPriorityTaskWoken ) PRIVILEGED_FUNCTION;\r
#else\r
#define xEventGroupSetBitsFromISR( xEventGroup, uxBitsToSet, pxHigherPriorityTaskWoken ) xTimerPendFunctionCallFromISR( vEventGroupSetBitsCallback, ( void * ) xEventGroup, ( uint32_t ) uxBitsToSet, pxHigherPriorityTaskWoken )\r
#endif\r
* \defgroup xEventGroupGetBitsFromISR xEventGroupGetBitsFromISR\r
* \ingroup EventGroup\r
*/\r
-#define xEventGroupGetBitsFromISR( xEventGroup ) xEventGroupClearBitsFromISR( xEventGroup, 0 )\r
+EventBits_t xEventGroupGetBitsFromISR( EventGroupHandle_t xEventGroup ) PRIVILEGED_FUNCTION;\r
\r
/**\r
* event_groups.h\r
*\r
* @param xEventGroup The event group being deleted.\r
*/\r
-void vEventGroupDelete( EventGroupHandle_t xEventGroup );\r
+void vEventGroupDelete( EventGroupHandle_t xEventGroup ) PRIVILEGED_FUNCTION;\r
\r
/* For internal use only. */\r
-void vEventGroupSetBitsCallback( void *pvEventGroup, const uint32_t ulBitsToSet );\r
+void vEventGroupSetBitsCallback( void *pvEventGroup, const uint32_t ulBitsToSet ) PRIVILEGED_FUNCTION;\r
+void vEventGroupClearBitsCallback( void *pvEventGroup, const uint32_t ulBitsToClear ) PRIVILEGED_FUNCTION;\r
\r
#if (configUSE_TRACE_FACILITY == 1)\r
- UBaseType_t uxEventGroupGetNumber( void* xEventGroup );\r
+ UBaseType_t uxEventGroupGetNumber( void* xEventGroup ) PRIVILEGED_FUNCTION;\r
#endif\r
\r
#ifdef __cplusplus\r
projects / freertos / blobdiff