/**************************************************************************************************
* @fn npSpiMonitor
*
* @brief This function monitors the SPI signals for error conditions and for the end of a
* transaction. If an error is detected it attempts to recover.
*
* input parameters
*
* None.
*
* output parameters
*
* None.
*
* @return None.
**************************************************************************************************
*/
void npSpiMonitor(void)
{
if (ZNP_CFG1_UART == znpCfg1)
{
return;
}
if (npSpiState == NP_SPI_IDLE)
{
/* Poll for MRDY in case it was set before slave had setup the ISR.
* Also, async responses may get queued, so flush them out here.
*/
if ((GPIOPinRead(HAL_SPI_MRDY_BASE, HAL_SPI_MRDY_PIN) == 0) || npSpiReadyCallback())
{
npSpiAReqReady();
}
}
}
/**************************************************************************************************
* @fn npSpiMonitor
*
* @brief This function monitors the SPI signals for error conditions and for the end of a
* transaction. If an error is detected it attempts to recover.
*
* input parameters
*
* None.
*
* output parameters
*
* None.
*
* @return None.
**************************************************************************************************
*/
void npSpiMonitor(void)
{
switch (halSpiState)
{
case NP_SPI_SYNCH:
break;
case NP_SPI_IDLE:
NP_SPI_ASSERT((NP_RDYIn_IFG & NP_RDYIn_BIT) == 0);
break;
case NP_SPI_WAIT_RX:
NP_SPI_ASSERT((HAL_DMA_CHECK_IRQ(HAL_DMA_CH_RX)) == 0);
break;
case NP_SPI_WAIT_TX:
NP_SPI_ASSERT((HAL_DMA_CHECK_IRQ(HAL_DMA_CH_TX)) == 0);
break;
case NP_SPI_WAIT_AREQ:
break;
default:
NP_SPI_ASSERT(0);
break;
}
if (halSpiState == NP_SPI_IDLE)
{
/* Poll for MRDY in case it was set before slave had setup the ISR.
* Also, async responses may get queued, so flush them out here.
*/
if ((NP_RDYIn == 0) || (npSpiReadyCallback()))
{
npSpiAReqReady();
}
}
}
/**************************************************************************************************
* @fn npSpiIdle
*
* @brief This function returns true if SPI is idle and there is no queued data.
*
* input parameters
*
* None.
*
* output parameters
*
* None.
*
* @return True if SPI is idle with no queued data.
**************************************************************************************************
*/
bool npSpiIdle(void)
{
return (halSpiState == NP_SPI_IDLE && !npSpiReadyCallback());
}
