static void prvHookCoRoutine( CoRoutineHandle_t xHandle, UBaseType_t uxIndex )
{
static UBaseType_t uxReceivedValue[ hookNUM_HOOK_CO_ROUTINES ];
BaseType_t xResult;
/* Each co-routine MUST start with a call to crSTART(); */
crSTART( xHandle );
for( ;; )
{
/* Wait to receive a value from the tick hook. */
xResult = pdFAIL;
crQUEUE_RECEIVE( xHandle, xHookTxQueues[ uxIndex ], &( uxReceivedValue[ uxIndex ] ), portMAX_DELAY, &xResult );
/* There is no reason why we should not have received something on
the queue. */
if( xResult != pdPASS )
{
xCoRoutineErrorDetected = pdTRUE;
}
/* Send the same number back to the idle hook so it can verify it. */
xResult = pdFAIL;
crQUEUE_SEND( xHandle, xHookRxQueues[ uxIndex ], &( uxReceivedValue[ uxIndex ] ), hookNO_BLOCK_TIME, &xResult );
if( xResult != pdPASS )
{
/* There is no reason why we should not have been able to post to
the queue. */
xCoRoutineErrorDetected = pdTRUE;
}
}
/* Each co-routine MUST end with a call to crEND(). */
crEND();
}
static void vI2CCoRoutine( xCoRoutineHandle xHandle, unsigned portBASE_TYPE uxIndex )
{
portTickType xADCResult;
static portBASE_TYPE xResult = 0, xMilliSecs, xLED;
crSTART( xHandle );
for( ;; )
{
/* Start the I2C off to read the ADC. */
uxState = mainI2C_READ_1;
I2CMasterSlaveAddrSet( I2C_MASTER_BASE, mainI2CAddress, pdTRUE );
I2CMasterControl( I2C_MASTER_BASE, I2C_MASTER_CMD_BURST_RECEIVE_START );
/* Wait to receive the conversion result. */
crQUEUE_RECEIVE( xHandle, xADCQueue, &xADCResult, portMAX_DELAY, &xResult );
/* Scale the result to give a useful range of values for a visual
demo. */
xADCResult >>= 2;
xMilliSecs = xADCResult / portTICK_RATE_MS;
/* The delay is split between the four co-routines so they remain in
synch. */
uxDelay = xMilliSecs / ( mainNUM_LEDs + 1 );
/* Trigger each of the flash co-routines. */
for( xLED = 0; xLED < mainNUM_LEDs; xLED++ )
{
crQUEUE_SEND( xHandle, xDelayQueue, &xLED, 0, &xResult );
}
/* Wait for the full delay time then start again. This delay is long
enough to ensure the flash co-routines have done their thing and gone
back to sleep. */
crDELAY( xHandle, xMilliSecs );
}
crEND();
}
static void prvFixedDelayCoRoutine( xCoRoutineHandle xHandle, unsigned portBASE_TYPE uxIndex )
{
/* Even though this is a co-routine the xResult variable does not need to be
static as we do not need it to maintain its state between blocks. */
signed portBASE_TYPE xResult;
/* The uxIndex parameter of the co-routine function is used as an index into
the xFlashRates array to obtain the delay period to use. */
static const portTickType xFlashRates[ crfMAX_FLASH_TASKS ] = { 150 / portTICK_RATE_MS,
200 / portTICK_RATE_MS,
250 / portTICK_RATE_MS,
300 / portTICK_RATE_MS,
350 / portTICK_RATE_MS,
400 / portTICK_RATE_MS,
450 / portTICK_RATE_MS,
500 / portTICK_RATE_MS };
/* Co-routines MUST start with a call to crSTART. */
crSTART( xHandle );
for( ;; )
{
/* Post our uxIndex value onto the queue. This is used as the LED to
flash. */
crQUEUE_SEND( xHandle, xFlashQueue, ( void * ) &uxIndex, crfPOSTING_BLOCK_TIME, &xResult );
if( xResult != pdPASS )
{
/* For the reasons stated at the top of the file we should always
find that we can post to the queue. If we could not then an error
has occurred. */
xCoRoutineFlashStatus = pdFAIL;
}
crDELAY( xHandle, xFlashRates[ uxIndex ] );
}
/* Co-routines MUST end with a call to crEND. */
crEND();
}
