IntQueue.h File Reference

Go to the source code of this file.

Functions
void	vStartInterruptQueueTasks (void)
portBASE_TYPE	xAreIntQueueTasksStillRunning (void)
portBASE_TYPE	xFirstTimerHandler (void)
portBASE_TYPE	xSecondTimerHandler (void)

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Function Documentation

void vStartInterruptQueueTasks

(

void

)

Definition at line 211 of file IntQueue.c.

References configMINIMAL_STACK_SIZE, intqHIGH_PRIORITY_TASK1, intqHIGH_PRIORITY_TASK2, intqHIGHER_PRIORITY, intqLOWER_PRIORITY, intqQUEUE_LENGTH, portBASE_TYPE, portCHAR, prv1stHigherPriorityNormallyFullTask(), prv2ndHigherPriorityNormallyFullTask(), prvHigherPriorityNormallyEmptyTask(), prvLowerPriorityNormallyEmptyTask(), prvLowerPriorityNormallyFullTask(), vQueueAddToRegistry, xHighPriorityNormallyEmptyTask1, xHighPriorityNormallyEmptyTask2, xHighPriorityNormallyFullTask1, xHighPriorityNormallyFullTask2, xNormallyEmptyQueue, xNormallyFullQueue, xQueueCreate(), and xTaskCreate.

{
    /* Start the test tasks. */
    xTaskCreate( prvHigherPriorityNormallyEmptyTask, ( signed portCHAR * ) "H1QRx", configMINIMAL_STACK_SIZE, ( void * ) intqHIGH_PRIORITY_TASK1, intqHIGHER_PRIORITY, &xHighPriorityNormallyEmptyTask1 );
    xTaskCreate( prvHigherPriorityNormallyEmptyTask, ( signed portCHAR * ) "H2QRx", configMINIMAL_STACK_SIZE, ( void * ) intqHIGH_PRIORITY_TASK2, intqHIGHER_PRIORITY, &xHighPriorityNormallyEmptyTask2 );
    xTaskCreate( prvLowerPriorityNormallyEmptyTask, ( signed portCHAR * ) "LQRx", configMINIMAL_STACK_SIZE, NULL, intqLOWER_PRIORITY, NULL );
    xTaskCreate( prv1stHigherPriorityNormallyFullTask, ( signed portCHAR * ) "H1QTx", configMINIMAL_STACK_SIZE, ( void * ) intqHIGH_PRIORITY_TASK1, intqHIGHER_PRIORITY, &xHighPriorityNormallyFullTask1 );
    xTaskCreate( prv2ndHigherPriorityNormallyFullTask, ( signed portCHAR * ) "H1QTx", configMINIMAL_STACK_SIZE, ( void * ) intqHIGH_PRIORITY_TASK2, intqHIGHER_PRIORITY, &xHighPriorityNormallyFullTask2 );
    xTaskCreate( prvLowerPriorityNormallyFullTask, ( signed portCHAR * ) "LQRx", configMINIMAL_STACK_SIZE, NULL, intqLOWER_PRIORITY, NULL );

    /* Create the queues that are accessed by multiple tasks and multiple
    interrupts. */
    xNormallyFullQueue = xQueueCreate( intqQUEUE_LENGTH, ( unsigned portBASE_TYPE ) sizeof( unsigned portBASE_TYPE ) );
    xNormallyEmptyQueue = xQueueCreate( intqQUEUE_LENGTH, ( unsigned portBASE_TYPE ) sizeof( unsigned portBASE_TYPE ) );

    /* vQueueAddToRegistry() adds the queue to the queue registry, if one is
    in use.  The queue registry is provided as a means for kernel aware
    debuggers to locate queues and has no purpose if a kernel aware debugger
    is not being used.  The call to vQueueAddToRegistry() will be removed
    by the pre-processor if configQUEUE_REGISTRY_SIZE is not defined or is
    defined to be less than 1. */
    vQueueAddToRegistry( xNormallyFullQueue, ( signed portCHAR * ) "NormallyFull" );
    vQueueAddToRegistry( xNormallyEmptyQueue, ( signed portCHAR * ) "NormallyEmpty" );
}

portBASE_TYPE xAreIntQueueTasksStillRunning

(

void

)

Definition at line 681 of file IntQueue.c.

References portBASE_TYPE, prvQueueAccessLogError(), uxHighPriorityLoops1, uxHighPriorityLoops2, uxLowPriorityLoops1, uxLowPriorityLoops2, and xErrorStatus.

{
static unsigned portBASE_TYPE uxLastHighPriorityLoops1 = 0, uxLastHighPriorityLoops2 = 0, uxLastLowPriorityLoops1 = 0, uxLastLowPriorityLoops2 = 0;

    /* xErrorStatus can be set outside of this function.  This function just
    checks that all the tasks are still cycling. */

    if( uxHighPriorityLoops1 == uxLastHighPriorityLoops1 )
    {
        /* The high priority 1 task has stalled. */
        prvQueueAccessLogError( __LINE__ );
    }

    uxLastHighPriorityLoops1 = uxHighPriorityLoops1;

    if( uxHighPriorityLoops2 == uxLastHighPriorityLoops2 )
    {
        /* The high priority 2 task has stalled. */
        prvQueueAccessLogError( __LINE__ );
    }

    uxLastHighPriorityLoops2 = uxHighPriorityLoops2;

    if( uxLowPriorityLoops1 == uxLastLowPriorityLoops1 )
    {
        /* The low priority 1 task has stalled. */
        prvQueueAccessLogError( __LINE__ );
    }

    uxLastLowPriorityLoops1 = uxLowPriorityLoops1;

    if( uxLowPriorityLoops2 == uxLastLowPriorityLoops2 )
    {
        /* The low priority 2 task has stalled. */
        prvQueueAccessLogError( __LINE__ );
    }

    uxLastLowPriorityLoops2 = uxLowPriorityLoops2;

    return xErrorStatus;
}

portBASE_TYPE xFirstTimerHandler

(

void

)

Definition at line 621 of file IntQueue.c.

References pdFALSE, portBASE_TYPE, timerNORMALLY_EMPTY_TX, and timerNORMALLY_FULL_RX.

{
portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE, uxRxedValue;
static unsigned portBASE_TYPE uxNextOperation = 0;

    /* Called from a timer interrupt.  Perform various read and write
    accesses on the queues. */

    uxNextOperation++;

    if( uxNextOperation & ( unsigned portBASE_TYPE ) 0x01 )
    {
        timerNORMALLY_EMPTY_TX();
        timerNORMALLY_EMPTY_TX();
        timerNORMALLY_EMPTY_TX();
    }
    else
    {
        timerNORMALLY_FULL_RX();
        timerNORMALLY_FULL_RX();
        timerNORMALLY_FULL_RX();
    }

    return xHigherPriorityTaskWoken;
}

portBASE_TYPE xSecondTimerHandler

(

void

)

Definition at line 648 of file IntQueue.c.

References pdFALSE, portBASE_TYPE, timerNORMALLY_EMPTY_RX, timerNORMALLY_EMPTY_TX, timerNORMALLY_FULL_RX, and timerNORMALLY_FULL_TX.

{
unsigned portBASE_TYPE uxRxedValue;
portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
static unsigned portBASE_TYPE uxNextOperation = 0;

    /* Called from a timer interrupt.  Perform various read and write
    accesses on the queues. */

    uxNextOperation++;

    if( uxNextOperation & ( unsigned portBASE_TYPE ) 0x01 )
    {
        timerNORMALLY_EMPTY_TX();
        timerNORMALLY_EMPTY_TX();

        timerNORMALLY_EMPTY_RX();
        timerNORMALLY_EMPTY_RX();
    }
    else
    {
        timerNORMALLY_FULL_RX();
        timerNORMALLY_FULL_TX();
        timerNORMALLY_FULL_TX();
        timerNORMALLY_FULL_TX();
        timerNORMALLY_FULL_TX();
    }

    return xHigherPriorityTaskWoken;
}