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https://github.com/FreeRTOS/FreeRTOS-Kernel.git
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Add configUSE_STREAM_BUFFERS in source files
This commit is contained in:
Rahul Kar
parent
f74cc70de0
commit
57d6dbac67
3 changed files with 82 additions and 66 deletions
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@ -30,7 +30,7 @@
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#include <stdlib.h>
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/* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining
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* all the API functions to use the MPU wrappers. That should only be done when
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* all the API functions to use the MPU wrappers. That should only be done when
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* task.h is included from an application file. */
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#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
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@ -46,8 +46,8 @@
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#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
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/* This entire source file will be skipped if the application is not configured
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* to include event groups functionality. This #if is closed at the very bottom
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* of this file. If you want to include event groups then ensure
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* to include event groups functionality. This #if is closed at the very bottom
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* of this file. If you want to include event groups then ensure
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* configUSE_EVENT_GROUPS is set to 1 in FreeRTOSConfig.h. */
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#if ( configUSE_EVENT_GROUPS == 1 )
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typedef struct EventGroupDef_t
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@ -875,6 +875,6 @@
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/*-----------------------------------------------------------*/
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/* This entire source file will be skipped if the application is not configured
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* to include event groups functionality. If you want to include event groups
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* to include event groups functionality. If you want to include event groups
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* then ensure configUSE_EVENT_GROUPS is set to 1 in FreeRTOSConfig.h. */
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#endif /* configUSE_EVENT_GROUPS == 1 */
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@ -322,6 +322,10 @@
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#define configUSE_EVENT_GROUPS 1
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#endif
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#ifndef configUSE_STREAM_BUFFERS
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#define configUSE_STREAM_BUFFERS 1
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#endif
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#ifndef configUSE_COUNTING_SEMAPHORES
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#define configUSE_COUNTING_SEMAPHORES 0
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#endif
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136
stream_buffer.c
136
stream_buffer.c
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@ -52,11 +52,17 @@
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* correct privileged Vs unprivileged linkage and placement. */
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#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
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/* This entire source file will be skipped if the application is not configured
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* to include stream buffer functionality. This #if is closed at the very bottom
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* of this file. If you want to include stream buffers then ensure
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* configUSE_STREAM_BUFFERS is set to 1 in FreeRTOSConfig.h. */
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#if ( configUSE_STREAM_BUFFERS == 1 )
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/* If the user has not provided application specific Rx notification macros,
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* or #defined the notification macros away, then provide default implementations
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* that uses task notifications. */
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#ifndef sbRECEIVE_COMPLETED
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#define sbRECEIVE_COMPLETED( pxStreamBuffer ) \
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#ifndef sbRECEIVE_COMPLETED
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#define sbRECEIVE_COMPLETED( pxStreamBuffer ) \
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do \
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{ \
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vTaskSuspendAll(); \
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@ -72,13 +78,13 @@
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} \
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( void ) xTaskResumeAll(); \
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} while( 0 )
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#endif /* sbRECEIVE_COMPLETED */
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#endif /* sbRECEIVE_COMPLETED */
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/* If user has provided a per-instance receive complete callback, then
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* invoke the callback else use the receive complete macro which is provided by default for all instances.
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*/
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#if ( configUSE_SB_COMPLETED_CALLBACK == 1 )
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#define prvRECEIVE_COMPLETED( pxStreamBuffer ) \
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#if ( configUSE_SB_COMPLETED_CALLBACK == 1 )
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#define prvRECEIVE_COMPLETED( pxStreamBuffer ) \
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do { \
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if( ( pxStreamBuffer )->pxReceiveCompletedCallback != NULL ) \
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{ \
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@ -89,13 +95,13 @@
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sbRECEIVE_COMPLETED( ( pxStreamBuffer ) ); \
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} \
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} while( 0 )
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#else /* if ( configUSE_SB_COMPLETED_CALLBACK == 1 ) */
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#define prvRECEIVE_COMPLETED( pxStreamBuffer ) sbRECEIVE_COMPLETED( ( pxStreamBuffer ) )
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#endif /* if ( configUSE_SB_COMPLETED_CALLBACK == 1 ) */
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#else /* if ( configUSE_SB_COMPLETED_CALLBACK == 1 ) */
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#define prvRECEIVE_COMPLETED( pxStreamBuffer ) sbRECEIVE_COMPLETED( ( pxStreamBuffer ) )
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#endif /* if ( configUSE_SB_COMPLETED_CALLBACK == 1 ) */
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#ifndef sbRECEIVE_COMPLETED_FROM_ISR
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#define sbRECEIVE_COMPLETED_FROM_ISR( pxStreamBuffer, \
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pxHigherPriorityTaskWoken ) \
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#ifndef sbRECEIVE_COMPLETED_FROM_ISR
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#define sbRECEIVE_COMPLETED_FROM_ISR( pxStreamBuffer, \
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pxHigherPriorityTaskWoken ) \
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do { \
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UBaseType_t uxSavedInterruptStatus; \
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\
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@ -113,11 +119,11 @@
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} \
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taskEXIT_CRITICAL_FROM_ISR( uxSavedInterruptStatus ); \
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} while( 0 )
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#endif /* sbRECEIVE_COMPLETED_FROM_ISR */
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#endif /* sbRECEIVE_COMPLETED_FROM_ISR */
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#if ( configUSE_SB_COMPLETED_CALLBACK == 1 )
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#define prvRECEIVE_COMPLETED_FROM_ISR( pxStreamBuffer, \
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pxHigherPriorityTaskWoken ) \
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#if ( configUSE_SB_COMPLETED_CALLBACK == 1 )
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#define prvRECEIVE_COMPLETED_FROM_ISR( pxStreamBuffer, \
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pxHigherPriorityTaskWoken ) \
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do { \
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if( ( pxStreamBuffer )->pxReceiveCompletedCallback != NULL ) \
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{ \
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@ -128,17 +134,17 @@
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sbRECEIVE_COMPLETED_FROM_ISR( ( pxStreamBuffer ), ( pxHigherPriorityTaskWoken ) ); \
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} \
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} while( 0 )
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#else /* if ( configUSE_SB_COMPLETED_CALLBACK == 1 ) */
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#define prvRECEIVE_COMPLETED_FROM_ISR( pxStreamBuffer, pxHigherPriorityTaskWoken ) \
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#else /* if ( configUSE_SB_COMPLETED_CALLBACK == 1 ) */
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#define prvRECEIVE_COMPLETED_FROM_ISR( pxStreamBuffer, pxHigherPriorityTaskWoken ) \
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sbRECEIVE_COMPLETED_FROM_ISR( ( pxStreamBuffer ), ( pxHigherPriorityTaskWoken ) )
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#endif /* if ( configUSE_SB_COMPLETED_CALLBACK == 1 ) */
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#endif /* if ( configUSE_SB_COMPLETED_CALLBACK == 1 ) */
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/* If the user has not provided an application specific Tx notification macro,
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* or #defined the notification macro away, then provide a default
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* implementation that uses task notifications.
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*/
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#ifndef sbSEND_COMPLETED
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#define sbSEND_COMPLETED( pxStreamBuffer ) \
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#ifndef sbSEND_COMPLETED
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#define sbSEND_COMPLETED( pxStreamBuffer ) \
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vTaskSuspendAll(); \
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{ \
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if( ( pxStreamBuffer )->xTaskWaitingToReceive != NULL ) \
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@ -151,13 +157,13 @@
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} \
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} \
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( void ) xTaskResumeAll()
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#endif /* sbSEND_COMPLETED */
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#endif /* sbSEND_COMPLETED */
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/* If user has provided a per-instance send completed callback, then
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* invoke the callback else use the send complete macro which is provided by default for all instances.
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*/
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#if ( configUSE_SB_COMPLETED_CALLBACK == 1 )
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#define prvSEND_COMPLETED( pxStreamBuffer ) \
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#if ( configUSE_SB_COMPLETED_CALLBACK == 1 )
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#define prvSEND_COMPLETED( pxStreamBuffer ) \
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do { \
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if( ( pxStreamBuffer )->pxSendCompletedCallback != NULL ) \
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{ \
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@ -168,13 +174,13 @@
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sbSEND_COMPLETED( ( pxStreamBuffer ) ); \
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} \
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} while( 0 )
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#else /* if ( configUSE_SB_COMPLETED_CALLBACK == 1 ) */
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#define prvSEND_COMPLETED( pxStreamBuffer ) sbSEND_COMPLETED( ( pxStreamBuffer ) )
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#endif /* if ( configUSE_SB_COMPLETED_CALLBACK == 1 ) */
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#else /* if ( configUSE_SB_COMPLETED_CALLBACK == 1 ) */
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#define prvSEND_COMPLETED( pxStreamBuffer ) sbSEND_COMPLETED( ( pxStreamBuffer ) )
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#endif /* if ( configUSE_SB_COMPLETED_CALLBACK == 1 ) */
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#ifndef sbSEND_COMPLETE_FROM_ISR
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#define sbSEND_COMPLETE_FROM_ISR( pxStreamBuffer, pxHigherPriorityTaskWoken ) \
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#ifndef sbSEND_COMPLETE_FROM_ISR
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#define sbSEND_COMPLETE_FROM_ISR( pxStreamBuffer, pxHigherPriorityTaskWoken ) \
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do { \
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UBaseType_t uxSavedInterruptStatus; \
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\
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@ -192,11 +198,11 @@
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} \
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taskEXIT_CRITICAL_FROM_ISR( uxSavedInterruptStatus ); \
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} while( 0 )
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#endif /* sbSEND_COMPLETE_FROM_ISR */
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#endif /* sbSEND_COMPLETE_FROM_ISR */
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#if ( configUSE_SB_COMPLETED_CALLBACK == 1 )
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#define prvSEND_COMPLETE_FROM_ISR( pxStreamBuffer, pxHigherPriorityTaskWoken ) \
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#if ( configUSE_SB_COMPLETED_CALLBACK == 1 )
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#define prvSEND_COMPLETE_FROM_ISR( pxStreamBuffer, pxHigherPriorityTaskWoken ) \
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do { \
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if( ( pxStreamBuffer )->pxSendCompletedCallback != NULL ) \
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{ \
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@ -207,41 +213,41 @@
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sbSEND_COMPLETE_FROM_ISR( ( pxStreamBuffer ), ( pxHigherPriorityTaskWoken ) ); \
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} \
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} while( 0 )
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#else /* if ( configUSE_SB_COMPLETED_CALLBACK == 1 ) */
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#define prvSEND_COMPLETE_FROM_ISR( pxStreamBuffer, pxHigherPriorityTaskWoken ) \
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#else /* if ( configUSE_SB_COMPLETED_CALLBACK == 1 ) */
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#define prvSEND_COMPLETE_FROM_ISR( pxStreamBuffer, pxHigherPriorityTaskWoken ) \
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sbSEND_COMPLETE_FROM_ISR( ( pxStreamBuffer ), ( pxHigherPriorityTaskWoken ) )
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#endif /* if ( configUSE_SB_COMPLETED_CALLBACK == 1 ) */
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#endif /* if ( configUSE_SB_COMPLETED_CALLBACK == 1 ) */
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/* The number of bytes used to hold the length of a message in the buffer. */
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#define sbBYTES_TO_STORE_MESSAGE_LENGTH ( sizeof( configMESSAGE_BUFFER_LENGTH_TYPE ) )
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#define sbBYTES_TO_STORE_MESSAGE_LENGTH ( sizeof( configMESSAGE_BUFFER_LENGTH_TYPE ) )
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/* Bits stored in the ucFlags field of the stream buffer. */
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#define sbFLAGS_IS_MESSAGE_BUFFER ( ( uint8_t ) 1 ) /* Set if the stream buffer was created as a message buffer, in which case it holds discrete messages rather than a stream. */
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#define sbFLAGS_IS_STATICALLY_ALLOCATED ( ( uint8_t ) 2 ) /* Set if the stream buffer was created using statically allocated memory. */
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#define sbFLAGS_IS_MESSAGE_BUFFER ( ( uint8_t ) 1 ) /* Set if the stream buffer was created as a message buffer, in which case it holds discrete messages rather than a stream. */
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#define sbFLAGS_IS_STATICALLY_ALLOCATED ( ( uint8_t ) 2 ) /* Set if the stream buffer was created using statically allocated memory. */
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/*-----------------------------------------------------------*/
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/* Structure that hold state information on the buffer. */
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typedef struct StreamBufferDef_t
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{
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volatile size_t xTail; /* Index to the next item to read within the buffer. */
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volatile size_t xHead; /* Index to the next item to write within the buffer. */
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size_t xLength; /* The length of the buffer pointed to by pucBuffer. */
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size_t xTriggerLevelBytes; /* The number of bytes that must be in the stream buffer before a task that is waiting for data is unblocked. */
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volatile TaskHandle_t xTaskWaitingToReceive; /* Holds the handle of a task waiting for data, or NULL if no tasks are waiting. */
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volatile TaskHandle_t xTaskWaitingToSend; /* Holds the handle of a task waiting to send data to a message buffer that is full. */
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uint8_t * pucBuffer; /* Points to the buffer itself - that is - the RAM that stores the data passed through the buffer. */
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volatile size_t xTail; /* Index to the next item to read within the buffer. */
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volatile size_t xHead; /* Index to the next item to write within the buffer. */
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size_t xLength; /* The length of the buffer pointed to by pucBuffer. */
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size_t xTriggerLevelBytes; /* The number of bytes that must be in the stream buffer before a task that is waiting for data is unblocked. */
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volatile TaskHandle_t xTaskWaitingToReceive; /* Holds the handle of a task waiting for data, or NULL if no tasks are waiting. */
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volatile TaskHandle_t xTaskWaitingToSend; /* Holds the handle of a task waiting to send data to a message buffer that is full. */
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uint8_t * pucBuffer; /* Points to the buffer itself - that is - the RAM that stores the data passed through the buffer. */
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uint8_t ucFlags;
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#if ( configUSE_TRACE_FACILITY == 1 )
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UBaseType_t uxStreamBufferNumber; /* Used for tracing purposes. */
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UBaseType_t uxStreamBufferNumber; /* Used for tracing purposes. */
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#endif
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#if ( configUSE_SB_COMPLETED_CALLBACK == 1 )
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StreamBufferCallbackFunction_t pxSendCompletedCallback; /* Optional callback called on send complete. sbSEND_COMPLETED is called if this is NULL. */
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StreamBufferCallbackFunction_t pxReceiveCompletedCallback; /* Optional callback called on receive complete. sbRECEIVE_COMPLETED is called if this is NULL. */
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StreamBufferCallbackFunction_t pxSendCompletedCallback; /* Optional callback called on send complete. sbSEND_COMPLETED is called if this is NULL. */
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StreamBufferCallbackFunction_t pxReceiveCompletedCallback; /* Optional callback called on receive complete. sbRECEIVE_COMPLETED is called if this is NULL. */
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#endif
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UBaseType_t uxNotificationIndex; /* The index we are using for notification, by default tskDEFAULT_INDEX_TO_NOTIFY. */
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UBaseType_t uxNotificationIndex; /* The index we are using for notification, by default tskDEFAULT_INDEX_TO_NOTIFY. */
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} StreamBuffer_t;
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/*
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@ -320,7 +326,7 @@ static void prvInitialiseNewStreamBuffer( StreamBuffer_t * const pxStreamBuffer,
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StreamBufferCallbackFunction_t pxReceiveCompletedCallback ) PRIVILEGED_FUNCTION;
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/*-----------------------------------------------------------*/
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#if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 )
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#if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 )
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StreamBufferHandle_t xStreamBufferGenericCreate( size_t xBufferSizeBytes,
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size_t xTriggerLevelBytes,
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BaseType_t xIsMessageBuffer,
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@ -406,10 +412,10 @@ static void prvInitialiseNewStreamBuffer( StreamBuffer_t * const pxStreamBuffer,
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/* coverity[misra_c_2012_rule_11_5_violation] */
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return ( StreamBufferHandle_t ) pvAllocatedMemory;
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}
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#endif /* configSUPPORT_DYNAMIC_ALLOCATION */
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#endif /* configSUPPORT_DYNAMIC_ALLOCATION */
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/*-----------------------------------------------------------*/
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#if ( configSUPPORT_STATIC_ALLOCATION == 1 )
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#if ( configSUPPORT_STATIC_ALLOCATION == 1 )
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StreamBufferHandle_t xStreamBufferGenericCreateStatic( size_t xBufferSizeBytes,
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size_t xTriggerLevelBytes,
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@ -497,10 +503,10 @@ static void prvInitialiseNewStreamBuffer( StreamBuffer_t * const pxStreamBuffer,
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return xReturn;
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}
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#endif /* ( configSUPPORT_STATIC_ALLOCATION == 1 ) */
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#endif /* ( configSUPPORT_STATIC_ALLOCATION == 1 ) */
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/*-----------------------------------------------------------*/
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#if ( configSUPPORT_STATIC_ALLOCATION == 1 )
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#if ( configSUPPORT_STATIC_ALLOCATION == 1 )
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BaseType_t xStreamBufferGetStaticBuffers( StreamBufferHandle_t xStreamBuffer,
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uint8_t ** ppucStreamBufferStorageArea,
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StaticStreamBuffer_t ** ppxStaticStreamBuffer )
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@ -532,7 +538,7 @@ static void prvInitialiseNewStreamBuffer( StreamBuffer_t * const pxStreamBuffer,
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return xReturn;
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}
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#endif /* configSUPPORT_STATIC_ALLOCATION */
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#endif /* configSUPPORT_STATIC_ALLOCATION */
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/*-----------------------------------------------------------*/
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void vStreamBufferDelete( StreamBufferHandle_t xStreamBuffer )
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@ -1461,7 +1467,7 @@ static size_t prvReadBytesFromBuffer( StreamBuffer_t * pxStreamBuffer,
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static size_t prvBytesInBuffer( const StreamBuffer_t * const pxStreamBuffer )
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{
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/* Returns the distance between xTail and xHead. */
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/* Returns the distance between xTail and xHead. */
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size_t xCount;
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xCount = pxStreamBuffer->xLength + pxStreamBuffer->xHead;
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@ -1496,7 +1502,7 @@ static void prvInitialiseNewStreamBuffer( StreamBuffer_t * const pxStreamBuffer,
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/* The value written just has to be identifiable when looking at the
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* memory. Don't use 0xA5 as that is the stack fill value and could
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* result in confusion as to what is actually being observed. */
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#define STREAM_BUFFER_BUFFER_WRITE_VALUE ( 0x55 )
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#define STREAM_BUFFER_BUFFER_WRITE_VALUE ( 0x55 )
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configASSERT( memset( pucBuffer, ( int ) STREAM_BUFFER_BUFFER_WRITE_VALUE, xBufferSizeBytes ) == pucBuffer );
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}
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#endif
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@ -1564,7 +1570,7 @@ void vStreamBufferSetStreamBufferNotificationIndex( StreamBufferHandle_t xStream
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}
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/*-----------------------------------------------------------*/
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#if ( configUSE_TRACE_FACILITY == 1 )
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#if ( configUSE_TRACE_FACILITY == 1 )
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UBaseType_t uxStreamBufferGetStreamBufferNumber( StreamBufferHandle_t xStreamBuffer )
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{
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@ -1575,10 +1581,10 @@ void vStreamBufferSetStreamBufferNotificationIndex( StreamBufferHandle_t xStream
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return xStreamBuffer->uxStreamBufferNumber;
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}
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#endif /* configUSE_TRACE_FACILITY */
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#endif /* configUSE_TRACE_FACILITY */
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/*-----------------------------------------------------------*/
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#if ( configUSE_TRACE_FACILITY == 1 )
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#if ( configUSE_TRACE_FACILITY == 1 )
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void vStreamBufferSetStreamBufferNumber( StreamBufferHandle_t xStreamBuffer,
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UBaseType_t uxStreamBufferNumber )
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@ -1590,10 +1596,10 @@ void vStreamBufferSetStreamBufferNotificationIndex( StreamBufferHandle_t xStream
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traceRETURN_vStreamBufferSetStreamBufferNumber();
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}
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#endif /* configUSE_TRACE_FACILITY */
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#endif /* configUSE_TRACE_FACILITY */
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/*-----------------------------------------------------------*/
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#if ( configUSE_TRACE_FACILITY == 1 )
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#if ( configUSE_TRACE_FACILITY == 1 )
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uint8_t ucStreamBufferGetStreamBufferType( StreamBufferHandle_t xStreamBuffer )
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{
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@ -1604,5 +1610,11 @@ void vStreamBufferSetStreamBufferNotificationIndex( StreamBufferHandle_t xStream
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return( ( uint8_t ) ( xStreamBuffer->ucFlags & sbFLAGS_IS_MESSAGE_BUFFER ) );
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}
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#endif /* configUSE_TRACE_FACILITY */
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#endif /* configUSE_TRACE_FACILITY */
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/*-----------------------------------------------------------*/
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/* This entire source file will be skipped if the application is not configured
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* to include stream buffer functionality. This #if is closed at the very bottom
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* of this file. If you want to include stream buffers then ensure
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* configUSE_STREAM_BUFFERS is set to 1 in FreeRTOSConfig.h. */
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#endif /* configUSE_STREAM_BUFFERS == 1 */
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