signed portBASE_TYPE MPU_xQueuePeekFromISR( xQueueHandle pxQueue, void * const pvBuffer )
{
portBASE_TYPE xRunningPrivileged = prvRaisePrivilege();
signed portBASE_TYPE xReturn;
xReturn = xQueuePeekFromISR( pxQueue, pvBuffer );
portRESET_PRIVILEGE( xRunningPrivileged );
return xReturn;
}
BaseType_t MPU_xQueuePeekFromISR( QueueHandle_t pxQueue, void * const pvBuffer )
{
BaseType_t xRunningPrivileged = prvRaisePrivilege();
BaseType_t xReturn;
xReturn = xQueuePeekFromISR( pxQueue, pvBuffer );
portRESET_PRIVILEGE( xRunningPrivileged );
return xReturn;
}
BaseType_t MPU_xQueuePeekFromISR( QueueHandle_t pxQueue, void * const pvBuffer )
{
BaseType_t xRunningPrivileged = xPortRaisePrivilege();
BaseType_t xReturn;
xReturn = xQueuePeekFromISR( pxQueue, pvBuffer );
vPortResetPrivilege( xRunningPrivileged );
return xReturn;
}
void vQueueOverwritePeriodicISRDemo( void )
{
static uint32_t ulCallCount = 0;
const uint32_t ulTx1 = 10UL, ulTx2 = 20UL, ulNumberOfSwitchCases = 3UL;
uint32_t ulRx;
/* This function should be called from an interrupt, such as the tick hook
function vApplicationTickHook(). */
configASSERT( xISRQueue );
switch( ulCallCount )
{
case 0:
/* The queue is empty. Write ulTx1 to the queue. In this demo the
last parameter is not used because there are no tasks blocked on
this queue. */
xQueueOverwriteFromISR( xISRQueue, &ulTx1, NULL );
/* Peek the queue to check it holds the expected value. */
xQueuePeekFromISR( xISRQueue, &ulRx );
if( ulRx != ulTx1 )
{
xISRTestStatus = pdFAIL;
}
break;
case 1:
/* The queue already holds ulTx1. Overwrite the value in the queue
with ulTx2. */
xQueueOverwriteFromISR( xISRQueue, &ulTx2, NULL );
break;
case 2:
/* Read from the queue to empty the queue again. The value read
should be ulTx2. */
xQueueReceiveFromISR( xISRQueue, &ulRx, NULL );
if( ulRx != ulTx2 )
{
xISRTestStatus = pdFAIL;
}
break;
}
/* Run the next case in the switch statement above next time this function
is called. */
ulCallCount++;
if( ulCallCount >= ulNumberOfSwitchCases )
{
/* Go back to the start. */
ulCallCount = 0;
}
}
AJ_Status AJ_QueuePeekFromISR(struct AJ_Queue* q, void* data)
{
uint8_t ret;
if (q && q->q) {
ret = xQueuePeekFromISR(q->q, data);
if (ret) {
return AJ_OK;
}
}
return AJ_ERR_NULL;
}
