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