/*FUNCTION**********************************************************************
*
* Function Name : I2C_DRV_SlaveDeinit
* Description : Shuts down the I2C slave driver.
* This function will clear the control register and turn off the clock to the
* module.
*
*END**************************************************************************/
void I2C_DRV_SlaveDeinit(uint32_t instance)
{
assert(instance < HW_I2C_INSTANCE_COUNT);
uint32_t baseAddr = g_i2cBaseAddr[instance];
i2c_slave_state_t * i2cSlaveState = (i2c_slave_state_t *)g_i2cStatePtr[instance];
#if FSL_FEATURE_I2C_HAS_START_STOP_DETECT
/* Disable I2C START&STOP signal detect interrupt in the peripheral.*/
I2C_HAL_SetStartStopIntCmd(baseAddr,false);
#endif
#if FSL_FEATURE_I2C_HAS_STOP_DETECT
/* Disable STOP signal detect interrupt in the peripheral.*/
I2C_HAL_SetStopIntCmd(baseAddr,false);
#endif
/* Disable I2C interrupt. */
I2C_HAL_SetIntCmd(baseAddr, false);
/* Turn off I2C.*/
I2C_HAL_Disable(baseAddr);
/* Disable clock for I2C.*/
CLOCK_SYS_DisableI2cClock(instance);
/* Disable I2C NVIC interrupt */
INT_SYS_DisableIRQ(g_i2cIrqId[instance]);
/* Destroy sema. */
OSA_EventDestroy(&i2cSlaveState->irqEvent);
/* Clear runtime structure poniter.*/
g_i2cStatePtr[instance] = NULL;
}
uint32_t OS_Event_destroy(os_event_handle handle)
{
event_t* obj = (event_t*) handle;
if (kStatus_OSA_Success == OSA_EventDestroy(obj))
{
OSA_MemFree(handle);
return (uint32_t) OS_EVENT_OK;
}
else
{
return (uint32_t) OS_EVENT_ERROR;
}
}
/*FUNCTION**********************************************************************
*
* Function Name : I2C_DRV_SlaveDeinit
* Description : Shuts down the I2C slave driver.
* This function will clear the control register and turn off the clock to the
* module.
*
*END*/
i2c_status_t I2C_DRV_SlaveDeinit(uint32_t instance)
{
assert(instance < I2C_INSTANCE_COUNT);
/** Exit if current instance is already de-initialized or is gated.*/
if ((!g_i2cStatePtr[instance]) || (!CLOCK_SYS_GetI2cGateCmd(instance)))
{
return kStatus_I2C_Fail;
}
I2C_Type * base = g_i2cBase[instance];
i2c_slave_state_t * i2cSlaveState = (i2c_slave_state_t *)g_i2cStatePtr[instance];
#if FSL_FEATURE_I2C_HAS_START_STOP_DETECT
/** Disable I2C START&STOP signal detect interrupt in the peripheral.*/
I2C_HAL_SetStartStopIntCmd(base,false);
#endif
#if FSL_FEATURE_I2C_HAS_STOP_DETECT
/** Disable STOP signal detect interrupt in the peripheral.*/
I2C_HAL_SetStopIntCmd(base,false);
#endif
/** Disable I2C interrupt. */
I2C_HAL_SetIntCmd(base, false);
/** Turn off I2C.*/
I2C_HAL_Disable(base);
/** Disable clock for I2C.*/
CLOCK_SYS_DisableI2cClock(instance);
/** Disable I2C NVIC interrupt */
INT_SYS_DisableIRQ(g_i2cIrqId[instance]);
/** Destroy sema. */
OSA_EventDestroy(&i2cSlaveState->irqEvent);
/** Clear runtime structure poniter.*/
g_i2cStatePtr[instance] = NULL;
return kStatus_I2C_Success;
}
/*FUNCTION**********************************************************************
*
* Function Name : SPI_DRV_DmaSlaveDeinit
* Description : De-initializes the device.
* Clears the control register and turns off the clock to the module.
*
*END**************************************************************************/
spi_status_t SPI_DRV_DmaSlaveDeinit(uint32_t instance)
{
spi_dma_slave_state_t * spiState = (spi_dma_slave_state_t *)g_spiStatePtr[instance];
SPI_Type *base = g_spiBase[instance];
assert(instance < SPI_INSTANCE_COUNT);
/* Disable SPI interrupt */
INT_SYS_DisableIRQ(g_spiIrqId[instance]);
/* Reset the SPI module to its default settings including disabling SPI and its interrupts */
SPI_HAL_Init(base);
#if FSL_FEATURE_SPI_16BIT_TRANSFERS
if (g_spiFifoSize[instance] != 0)
{
SPI_HAL_SetFifoIntCmd(base, kSpiRxFifoNearFullInt, false);
}
/* disable transmit interrupt */
SPI_HAL_SetIntMode(base, kSpiTxEmptyInt, false);
#endif /* FSL_FEATURE_SPI_16BIT_TRANSFERS */
/* Free DMA channels */
DMA_DRV_FreeChannel(&spiState->dmaReceive);
DMA_DRV_FreeChannel(&spiState->dmaTransmit);
/* Disable clock for SPI */
CLOCK_SYS_DisableSpiClock(instance);
/* Destroy the event */
OSA_EventDestroy(&spiState->event);
/* Clear state pointer */
g_spiStatePtr[instance] = NULL;
return kStatus_SPI_Success;
}
