OSStatus platform_uart_deinit( platform_uart_driver_t* driver )
{
OSStatus err = kNoErr;
platform_mcu_powersave_disable();
require_action_quiet( ( driver != NULL ), exit, err = kParamErr);
usart_disable_interrupt( driver->peripheral->port, 0xffffffff );
NVIC_DisableIRQ( platform_flexcom_irq_numbers[driver->peripheral->uart_id] );
pdc_disable_transfer( usart_get_pdc_base( driver->peripheral->port ), PERIPH_PTCR_TXTDIS | PERIPH_PTCR_RXTDIS );
usart_disable_tx( driver->peripheral->port );
usart_disable_rx( driver->peripheral->port );
if( pmc_is_periph_clk_enabled( driver->peripheral->peripheral_id ) == 1 ) {
flexcom_disable( driver->peripheral->flexcom_base );
}
platform_gpio_deinit( driver->peripheral->tx_pin );
platform_gpio_deinit( driver->peripheral->rx_pin );
if ( driver->peripheral->cts_pin != NULL )
{
platform_gpio_deinit( driver->peripheral->cts_pin );
}
if ( driver->peripheral->rts_pin != NULL )
{
platform_gpio_deinit( driver->peripheral->rts_pin );
}
#ifndef NO_MICO_RTOS
mico_rtos_deinit_semaphore(&driver->rx_complete);
mico_rtos_deinit_semaphore(&driver->tx_complete);
#endif
driver->peripheral = NULL;
memset( driver, 0, sizeof(platform_uart_driver_t) );
exit:
platform_mcu_powersave_enable();
return err;
}
/** Release a SPI object
*
* TODO: spi_free is currently unimplemented
* This will require reference counting at the C++ level to be safe
*
* Return the pins owned by the SPI object to their reset state
* Disable the SPI peripheral
* Disable the SPI clock
* @param[in] obj The SPI object to deinitialize
*/
void spi_free(spi_t *obj){
MBED_ASSERT(obj);
spi_disable(obj->spi.spi_base);
spi_reset(obj->spi.spi_base);
flexcom_disable((Flexcom *)obj->spi.flexcom);
}
