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51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
#include "FreeRTOS.h"
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#include "semphr.h"
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#include "task.h"
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/* The interrupt entry point. */
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void vEMAC_ISR_Wrapper( void ) __attribute__((naked));
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/* The function that actually performs the interrupt processing. This must be
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separate to the wrapper to ensure the correct stack frame is set up. */
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void vEMAC_ISR_Handler( void ) __attribute__((noinline));
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extern xSemaphoreHandle xEMACSemaphore;
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void vEMAC_ISR_Handler( void )
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{
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portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
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/* Clear the interrupt. */
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IntClear = 0xffff;
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VICVectAddr = 0;
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/* Ensure the uIP task is not blocked as data has arrived. */
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xSemaphoreGiveFromISR( xEMACSemaphore, &xHigherPriorityTaskWoken );
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if( xHigherPriorityTaskWoken )
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{
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/* If the uIP task was unblocked then calling "Yield from ISR" here
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will ensure the interrupt returns directly to the uIP task, if it
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is the highest priority read task. */
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portYIELD_FROM_ISR();
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}
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}
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/*-----------------------------------------------------------*/
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void vEMAC_ISR_Wrapper( void )
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{
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/* Save the context of the interrupted task. */
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portSAVE_CONTEXT();
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/* Call the handler function. This must be separate from the wrapper
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function to ensure the correct stack frame is set up. */
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__asm volatile( "bl vEMAC_ISR_Handler" );
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/* Restore the context of whichever task is going to run next. */
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portRESTORE_CONTEXT();
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}
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