drivers/serial/uart_msp432p4xx.c - third_party/github/zephyrproject-rtos/zephyr - Git at Google

 /*
  * Copyright (c) 2017, Linaro Ltd
  *
  * SPDX-License-Identifier: Apache-2.0
  */

 /* See www.ti.com/lit/pdf/slau356f, Chapter 22, for MSP432P4XX UART info. */

 /* include driverlib/gpio.h (from the msp432p4xx SDK) before Z's uart.h so
  * that the definition of BIT is not overridden */
 #include <driverlib/gpio.h>

 #include <drivers/uart.h>

 /* Driverlib includes */
 #include <driverlib/rom.h>
 #include <driverlib/rom_map.h>
 #include <driverlib/uart.h>

 struct uart_msp432p4xx_dev_data_t {
 	/* UART config structure */
 	eUSCI_UART_Config uartConfig;
 #ifdef CONFIG_UART_INTERRUPT_DRIVEN
 	uart_irq_callback_user_data_t cb; /**< Callback function pointer */
 	void *cb_data;  /**< Callback function arg */
 #endif /* CONFIG_UART_INTERRUPT_DRIVEN */
 };

 #define DEV_CFG(dev) \
 	((const struct uart_device_config * const)(dev)->config->config_info)
 #define DEV_DATA(dev) \
 	((struct uart_msp432p4xx_dev_data_t * const)(dev)->driver_data)

 static struct device DEVICE_NAME_GET(uart_msp432p4xx_0);

 #ifdef CONFIG_UART_INTERRUPT_DRIVEN
 static void uart_msp432p4xx_isr(void *arg);
 #endif

 static const struct uart_device_config uart_msp432p4xx_dev_cfg_0 = {
 	.base = (void *)DT_UART_MSP432P4XX_BASE_ADDRESS,
 	.sys_clk_freq = DT_UART_MSP432P4XX_CLOCK_FREQUENCY,
 };

 static struct uart_msp432p4xx_dev_data_t uart_msp432p4xx_dev_data_0 = {
 #ifdef CONFIG_UART_INTERRUPT_DRIVEN
 	.cb = NULL,
 #endif
 };

 static int baudrate_set(eUSCI_UART_Config *config, uint32_t baudrate)
 {
 	u16_t prescalar;
 	u8_t first_mod_reg, second_mod_reg;

 	switch (baudrate) {
 	case 1200:
 		prescalar = 2500U;
 		first_mod_reg = 0U;
 		second_mod_reg = 0U;
 		break;
 	case 2400:
 		prescalar = 1250U;
 		first_mod_reg = 0U;
 		second_mod_reg = 0U;
 		break;
 	case 4800:
 		prescalar = 625U;
 		first_mod_reg = 0U;
 		second_mod_reg = 0U;
 		break;
 	case 9600:
 		prescalar = 312U;
 		first_mod_reg = 8U;
 		second_mod_reg = 0U;
 		break;
 	case 19200:
 		prescalar = 156U;
 		first_mod_reg = 4U;
 		second_mod_reg = 0U;
 		break;
 	case 38400:
 		prescalar = 78U;
 		first_mod_reg = 2U;
 		second_mod_reg = 0U;
 		break;
 	case 57600:
 		prescalar = 52U;
 		first_mod_reg = 1U;
 		second_mod_reg = 37U;
 		break;
 	case 115200:
 		prescalar = 26U;
 		first_mod_reg = 0U;
 		second_mod_reg = 111U;
 		break;
 	case 230400:
 		prescalar = 13U;
 		first_mod_reg = 0U;
 		second_mod_reg = 37U;
 		break;
 	case 460800:
 		prescalar = 6U;
 		first_mod_reg = 8U;
 		second_mod_reg = 32U;
 		break;
 	default:
 		return -EINVAL;
 	}

 	config->clockPrescalar = prescalar;
 	config->firstModReg = first_mod_reg;
 	config->secondModReg = second_mod_reg;

 	return 0;
 }

 static int uart_msp432p4xx_init(struct device *dev)
 {
 	int err;
 	const struct uart_device_config *config = DEV_CFG(dev);
 	eUSCI_UART_Config UartConfig;

 	/* Select P1.2 and P1.3 in UART mode */
 	MAP_GPIO_setAsPeripheralModuleFunctionInputPin(GPIO_PORT_P1,
 		(GPIO_PIN2 | GPIO_PIN3), GPIO_PRIMARY_MODULE_FUNCTION);

 	UartConfig.selectClockSource = EUSCI_A_UART_CLOCKSOURCE_SMCLK;
 	UartConfig.parity = EUSCI_A_UART_NO_PARITY;
 	UartConfig.msborLsbFirst = EUSCI_A_UART_LSB_FIRST;
 	UartConfig.numberofStopBits = EUSCI_A_UART_ONE_STOP_BIT;
 	UartConfig.uartMode = EUSCI_A_UART_MODE;
 	UartConfig.overSampling = EUSCI_A_UART_OVERSAMPLING_BAUDRATE_GENERATION;

 	/* Baud rate settings calculated for 48MHz */
 	err = baudrate_set(&UartConfig, DT_UART_MSP432P4XX_BAUD_RATE);
 	if (err) {
 		return err;
 	}
 	/* Configure UART Module */
 	MAP_UART_initModule((unsigned long)config->base, &UartConfig);

 	/* Enable UART module */
 	MAP_UART_enableModule((unsigned long)config->base);

 #ifdef CONFIG_UART_INTERRUPT_DRIVEN
 	IRQ_CONNECT(DT_TI_MSP432P4XX_UART_40001000_IRQ_0,
 			DT_TI_MSP432P4XX_UART_40001000_IRQ_0_PRIORITY,
 			uart_msp432p4xx_isr, DEVICE_GET(uart_msp432p4xx_0),
 			0);
 	irq_enable(DT_TI_MSP432P4XX_UART_40001000_IRQ_0);

 #endif
 	return 0;
 }

 static int uart_msp432p4xx_poll_in(struct device *dev, unsigned char *c)
 {
 	const struct uart_device_config *config = DEV_CFG(dev);

 	*c = MAP_UART_receiveData((unsigned long)config->base);

 	return 0;
 }

 static void uart_msp432p4xx_poll_out(struct device *dev,
 				     unsigned char c)
 {
 	const struct uart_device_config *config = DEV_CFG(dev);

 	MAP_UART_transmitData((unsigned long)config->base, c);
 }

 #ifdef CONFIG_UART_INTERRUPT_DRIVEN
 static int uart_msp432p4xx_fifo_fill(struct device *dev,
 						const u8_t *tx_data, int size)
 {
 	const struct uart_device_config *config = DEV_CFG(dev);
 	unsigned int num_tx = 0U;

 	while ((size - num_tx) > 0) {
 		MAP_UART_transmitData((unsigned long)config->base,
 							tx_data[num_tx]);
 		if (MAP_UART_getInterruptStatus((unsigned long)config->base,
 			EUSCI_A_UART_TRANSMIT_COMPLETE_INTERRUPT_FLAG)) {
 			num_tx++;
 		} else {
 			break;
 		}
 	}

 	return (int)num_tx;
 }

 static int uart_msp432p4xx_fifo_read(struct device *dev, u8_t *rx_data,
 							const int size)
 {
 	const struct uart_device_config *config = DEV_CFG(dev);
 	unsigned int num_rx = 0U;

 	while (((size - num_rx) > 0) &&
 		MAP_UART_getInterruptStatus((unsigned long)config->base,
 					EUSCI_A_UART_RECEIVE_INTERRUPT_FLAG)) {

 		rx_data[num_rx++] =
 			MAP_UART_receiveData((unsigned long)config->base);
 	}

 	return num_rx;
 }

 static void uart_msp432p4xx_irq_tx_enable(struct device *dev)
 {
 	const struct uart_device_config *config = DEV_CFG(dev);

 	MAP_UART_enableInterrupt((unsigned long)config->base,
 					EUSCI_A_UART_TRANSMIT_INTERRUPT);
 }

 static void uart_msp432p4xx_irq_tx_disable(struct device *dev)
 {
 	const struct uart_device_config *config = DEV_CFG(dev);

 	MAP_UART_disableInterrupt((unsigned long)config->base,
 					EUSCI_A_UART_TRANSMIT_INTERRUPT);
 }

 static int uart_msp432p4xx_irq_tx_ready(struct device *dev)
 {
 	const struct uart_device_config *config = DEV_CFG(dev);
 	unsigned int int_status;

 	int_status =  MAP_UART_getInterruptStatus((unsigned long)config->base,
 					EUSCI_A_UART_TRANSMIT_INTERRUPT_FLAG);

 	return (int_status & EUSCI_A_IE_TXIE);
 }

 static void uart_msp432p4xx_irq_rx_enable(struct device *dev)
 {
 	const struct uart_device_config *config = DEV_CFG(dev);

 	MAP_UART_enableInterrupt((unsigned long)config->base,
 				EUSCI_A_UART_RECEIVE_INTERRUPT);
 }

 static void uart_msp432p4xx_irq_rx_disable(struct device *dev)
 {
 	const struct uart_device_config *config = DEV_CFG(dev);

 	MAP_UART_disableInterrupt((unsigned long)config->base,
 				EUSCI_A_UART_RECEIVE_INTERRUPT);
 }

 static int uart_msp432p4xx_irq_tx_complete(struct device *dev)
 {
 	const struct uart_device_config *config = DEV_CFG(dev);

 	return MAP_UART_getInterruptStatus((unsigned long)config->base,
 				EUSCI_A_UART_TRANSMIT_COMPLETE_INTERRUPT_FLAG);
 }

 static int uart_msp432p4xx_irq_rx_ready(struct device *dev)
 {
 	const struct uart_device_config *config = DEV_CFG(dev);
 	unsigned int int_status;

 	int_status = MAP_UART_getInterruptStatus((unsigned long)config->base,
 					EUSCI_A_UART_RECEIVE_INTERRUPT_FLAG);

 	return (int_status & EUSCI_A_IE_RXIE);
 }

 static void uart_msp432p4xx_irq_err_enable(struct device *dev)
 {
 	/* Not yet used in zephyr */
 }

 static void uart_msp432p4xx_irq_err_disable(struct device *dev)
 {
 	/* Not yet used in zephyr */
 }

 static int uart_msp432p4xx_irq_is_pending(struct device *dev)
 {
 	const struct uart_device_config *config = DEV_CFG(dev);
 	unsigned int int_status;

 	int_status = MAP_UART_getEnabledInterruptStatus(
 						(unsigned long)config->base);

 	return (int_status & (EUSCI_A_IE_TXIE | EUSCI_A_IE_RXIE));
 }

 static int uart_msp432p4xx_irq_update(struct device *dev)
 {
 	return 1;
 }

 static void uart_msp432p4xx_irq_callback_set(struct device *dev,
 					 uart_irq_callback_user_data_t cb,
 					 void *cb_data)
 {
 	struct uart_msp432p4xx_dev_data_t * const dev_data = DEV_DATA(dev);

 	dev_data->cb = cb;
 	dev_data->cb_data = cb_data;
 }

 /**
  * @brief Interrupt service routine.
  *
  * This simply calls the callback function, if one exists.
  *
  * @param arg Argument to ISR.
  *
  * @return N/A
  */
 static void uart_msp432p4xx_isr(void *arg)
 {
 	struct device *dev = arg;
 	const struct uart_device_config *config = DEV_CFG(dev);
 	struct uart_msp432p4xx_dev_data_t * const dev_data = DEV_DATA(dev);
 	unsigned int int_status;

 	int_status = MAP_UART_getEnabledInterruptStatus(
 						(unsigned long)config->base);

 	if (dev_data->cb) {
 		dev_data->cb(dev_data->cb_data);
 	}
 	/*
 	 * Clear interrupts only after cb called, as Zephyr UART clients expect
 	 * to check interrupt status during the callback.
 	 */
 	MAP_UART_disableInterrupt((unsigned long)config->base, int_status);
 }
 #endif /* CONFIG_UART_INTERRUPT_DRIVEN */

 static const struct uart_driver_api uart_msp432p4xx_driver_api = {
 	.poll_in = uart_msp432p4xx_poll_in,
 	.poll_out = uart_msp432p4xx_poll_out,
 #ifdef CONFIG_UART_INTERRUPT_DRIVEN
 	.fifo_fill	  = uart_msp432p4xx_fifo_fill,
 	.fifo_read	  = uart_msp432p4xx_fifo_read,
 	.irq_tx_enable	  = uart_msp432p4xx_irq_tx_enable,
 	.irq_tx_disable	  = uart_msp432p4xx_irq_tx_disable,
 	.irq_tx_ready	  = uart_msp432p4xx_irq_tx_ready,
 	.irq_rx_enable	  = uart_msp432p4xx_irq_rx_enable,
 	.irq_rx_disable	  = uart_msp432p4xx_irq_rx_disable,
 	.irq_tx_complete  = uart_msp432p4xx_irq_tx_complete,
 	.irq_rx_ready	  = uart_msp432p4xx_irq_rx_ready,
 	.irq_err_enable	  = uart_msp432p4xx_irq_err_enable,
 	.irq_err_disable  = uart_msp432p4xx_irq_err_disable,
 	.irq_is_pending	  = uart_msp432p4xx_irq_is_pending,
 	.irq_update	  = uart_msp432p4xx_irq_update,
 	.irq_callback_set = uart_msp432p4xx_irq_callback_set,
 #endif /* CONFIG_UART_INTERRUPT_DRIVEN */
 };

 DEVICE_AND_API_INIT(uart_msp432p4xx_0, DT_UART_MSP432P4XX_NAME,
 			uart_msp432p4xx_init, &uart_msp432p4xx_dev_data_0,
 			&uart_msp432p4xx_dev_cfg_0,
 			PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
 			(void *)&uart_msp432p4xx_driver_api);
	/*
	* Copyright (c) 2017, Linaro Ltd
	*
	* SPDX-License-Identifier: Apache-2.0
	*/

	/* See www.ti.com/lit/pdf/slau356f, Chapter 22, for MSP432P4XX UART info. */

	/* include driverlib/gpio.h (from the msp432p4xx SDK) before Z's uart.h so
	* that the definition of BIT is not overridden */
	#include <driverlib/gpio.h>

	#include <drivers/uart.h>

	/* Driverlib includes */
	#include <driverlib/rom.h>
	#include <driverlib/rom_map.h>
	#include <driverlib/uart.h>

	struct uart_msp432p4xx_dev_data_t {
	/* UART config structure */
	eUSCI_UART_Config uartConfig;
	#ifdef CONFIG_UART_INTERRUPT_DRIVEN
	uart_irq_callback_user_data_t cb; /*< Callback function pointer /
	void cb_data; /< Callback function arg /
	#endif /* CONFIG_UART_INTERRUPT_DRIVEN */
	};

	#define DEV_CFG(dev) \
	((const struct uart_device_config * const)(dev)->config->config_info)
	#define DEV_DATA(dev) \
	((struct uart_msp432p4xx_dev_data_t * const)(dev)->driver_data)

	static struct device DEVICE_NAME_GET(uart_msp432p4xx_0);

	#ifdef CONFIG_UART_INTERRUPT_DRIVEN
	static void uart_msp432p4xx_isr(void *arg);
	#endif

	static const struct uart_device_config uart_msp432p4xx_dev_cfg_0 = {
	.base = (void *)DT_UART_MSP432P4XX_BASE_ADDRESS,
	.sys_clk_freq = DT_UART_MSP432P4XX_CLOCK_FREQUENCY,
	};

	static struct uart_msp432p4xx_dev_data_t uart_msp432p4xx_dev_data_0 = {
	#ifdef CONFIG_UART_INTERRUPT_DRIVEN
	.cb = NULL,
	#endif
	};

	static int baudrate_set(eUSCI_UART_Config *config, uint32_t baudrate)
	{
	u16_t prescalar;
	u8_t first_mod_reg, second_mod_reg;

	switch (baudrate) {
	case 1200:
	prescalar = 2500U;
	first_mod_reg = 0U;
	second_mod_reg = 0U;
	break;
	case 2400:
	prescalar = 1250U;
	first_mod_reg = 0U;
	second_mod_reg = 0U;
	break;
	case 4800:
	prescalar = 625U;
	first_mod_reg = 0U;
	second_mod_reg = 0U;
	break;
	case 9600:
	prescalar = 312U;
	first_mod_reg = 8U;
	second_mod_reg = 0U;
	break;
	case 19200:
	prescalar = 156U;
	first_mod_reg = 4U;
	second_mod_reg = 0U;
	break;
	case 38400:
	prescalar = 78U;
	first_mod_reg = 2U;
	second_mod_reg = 0U;
	break;
	case 57600:
	prescalar = 52U;
	first_mod_reg = 1U;
	second_mod_reg = 37U;
	break;
	case 115200:
	prescalar = 26U;
	first_mod_reg = 0U;
	second_mod_reg = 111U;
	break;
	case 230400:
	prescalar = 13U;
	first_mod_reg = 0U;
	second_mod_reg = 37U;
	break;
	case 460800:
	prescalar = 6U;
	first_mod_reg = 8U;
	second_mod_reg = 32U;
	break;
	default:
	return -EINVAL;
	}

	config->clockPrescalar = prescalar;
	config->firstModReg = first_mod_reg;
	config->secondModReg = second_mod_reg;

	return 0;
	}

	static int uart_msp432p4xx_init(struct device *dev)
	{
	int err;
	const struct uart_device_config *config = DEV_CFG(dev);
	eUSCI_UART_Config UartConfig;

	/* Select P1.2 and P1.3 in UART mode */
	MAP_GPIO_setAsPeripheralModuleFunctionInputPin(GPIO_PORT_P1,
	(GPIO_PIN2 \| GPIO_PIN3), GPIO_PRIMARY_MODULE_FUNCTION);

	UartConfig.selectClockSource = EUSCI_A_UART_CLOCKSOURCE_SMCLK;
	UartConfig.parity = EUSCI_A_UART_NO_PARITY;
	UartConfig.msborLsbFirst = EUSCI_A_UART_LSB_FIRST;
	UartConfig.numberofStopBits = EUSCI_A_UART_ONE_STOP_BIT;
	UartConfig.uartMode = EUSCI_A_UART_MODE;
	UartConfig.overSampling = EUSCI_A_UART_OVERSAMPLING_BAUDRATE_GENERATION;

	/* Baud rate settings calculated for 48MHz */
	err = baudrate_set(&UartConfig, DT_UART_MSP432P4XX_BAUD_RATE);
	if (err) {
	return err;
	}
	/* Configure UART Module */
	MAP_UART_initModule((unsigned long)config->base, &UartConfig);

	/* Enable UART module */
	MAP_UART_enableModule((unsigned long)config->base);

	#ifdef CONFIG_UART_INTERRUPT_DRIVEN
	IRQ_CONNECT(DT_TI_MSP432P4XX_UART_40001000_IRQ_0,
	DT_TI_MSP432P4XX_UART_40001000_IRQ_0_PRIORITY,
	uart_msp432p4xx_isr, DEVICE_GET(uart_msp432p4xx_0),
	0);
	irq_enable(DT_TI_MSP432P4XX_UART_40001000_IRQ_0);

	#endif
	return 0;
	}

	static int uart_msp432p4xx_poll_in(struct device dev, unsigned char c)
	{
	const struct uart_device_config *config = DEV_CFG(dev);

	*c = MAP_UART_receiveData((unsigned long)config->base);

	return 0;
	}

	static void uart_msp432p4xx_poll_out(struct device *dev,
	unsigned char c)
	{
	const struct uart_device_config *config = DEV_CFG(dev);

	MAP_UART_transmitData((unsigned long)config->base, c);
	}

	#ifdef CONFIG_UART_INTERRUPT_DRIVEN
	static int uart_msp432p4xx_fifo_fill(struct device *dev,
	const u8_t *tx_data, int size)
	{
	const struct uart_device_config *config = DEV_CFG(dev);
	unsigned int num_tx = 0U;

	while ((size - num_tx) > 0) {
	MAP_UART_transmitData((unsigned long)config->base,
	tx_data[num_tx]);
	if (MAP_UART_getInterruptStatus((unsigned long)config->base,
	EUSCI_A_UART_TRANSMIT_COMPLETE_INTERRUPT_FLAG)) {
	num_tx++;
	} else {
	break;
	}
	}

	return (int)num_tx;
	}

	static int uart_msp432p4xx_fifo_read(struct device dev, u8_t rx_data,
	const int size)
	{
	const struct uart_device_config *config = DEV_CFG(dev);
	unsigned int num_rx = 0U;

	while (((size - num_rx) > 0) &&
	MAP_UART_getInterruptStatus((unsigned long)config->base,
	EUSCI_A_UART_RECEIVE_INTERRUPT_FLAG)) {

	rx_data[num_rx++] =
	MAP_UART_receiveData((unsigned long)config->base);
	}

	return num_rx;
	}

	static void uart_msp432p4xx_irq_tx_enable(struct device *dev)
	{
	const struct uart_device_config *config = DEV_CFG(dev);

	MAP_UART_enableInterrupt((unsigned long)config->base,
	EUSCI_A_UART_TRANSMIT_INTERRUPT);
	}

	static void uart_msp432p4xx_irq_tx_disable(struct device *dev)
	{
	const struct uart_device_config *config = DEV_CFG(dev);

	MAP_UART_disableInterrupt((unsigned long)config->base,
	EUSCI_A_UART_TRANSMIT_INTERRUPT);
	}

	static int uart_msp432p4xx_irq_tx_ready(struct device *dev)
	{
	const struct uart_device_config *config = DEV_CFG(dev);
	unsigned int int_status;

	int_status = MAP_UART_getInterruptStatus((unsigned long)config->base,
	EUSCI_A_UART_TRANSMIT_INTERRUPT_FLAG);

	return (int_status & EUSCI_A_IE_TXIE);
	}

	static void uart_msp432p4xx_irq_rx_enable(struct device *dev)
	{
	const struct uart_device_config *config = DEV_CFG(dev);

	MAP_UART_enableInterrupt((unsigned long)config->base,
	EUSCI_A_UART_RECEIVE_INTERRUPT);
	}

	static void uart_msp432p4xx_irq_rx_disable(struct device *dev)
	{
	const struct uart_device_config *config = DEV_CFG(dev);

	MAP_UART_disableInterrupt((unsigned long)config->base,
	EUSCI_A_UART_RECEIVE_INTERRUPT);
	}

	static int uart_msp432p4xx_irq_tx_complete(struct device *dev)
	{
	const struct uart_device_config *config = DEV_CFG(dev);

	return MAP_UART_getInterruptStatus((unsigned long)config->base,
	EUSCI_A_UART_TRANSMIT_COMPLETE_INTERRUPT_FLAG);
	}

	static int uart_msp432p4xx_irq_rx_ready(struct device *dev)
	{
	const struct uart_device_config *config = DEV_CFG(dev);
	unsigned int int_status;

	int_status = MAP_UART_getInterruptStatus((unsigned long)config->base,
	EUSCI_A_UART_RECEIVE_INTERRUPT_FLAG);

	return (int_status & EUSCI_A_IE_RXIE);
	}

	static void uart_msp432p4xx_irq_err_enable(struct device *dev)
	{
	/* Not yet used in zephyr */
	}

	static void uart_msp432p4xx_irq_err_disable(struct device *dev)
	{
	/* Not yet used in zephyr */
	}

	static int uart_msp432p4xx_irq_is_pending(struct device *dev)
	{
	const struct uart_device_config *config = DEV_CFG(dev);
	unsigned int int_status;

	int_status = MAP_UART_getEnabledInterruptStatus(
	(unsigned long)config->base);

	return (int_status & (EUSCI_A_IE_TXIE \| EUSCI_A_IE_RXIE));
	}

	static int uart_msp432p4xx_irq_update(struct device *dev)
	{
	return 1;
	}

	static void uart_msp432p4xx_irq_callback_set(struct device *dev,
	uart_irq_callback_user_data_t cb,
	void *cb_data)
	{
	struct uart_msp432p4xx_dev_data_t * const dev_data = DEV_DATA(dev);

	dev_data->cb = cb;
	dev_data->cb_data = cb_data;
	}

	/**
	* @brief Interrupt service routine.
	*
	* This simply calls the callback function, if one exists.
	*
	* @param arg Argument to ISR.
	*
	* @return N/A
	*/
	static void uart_msp432p4xx_isr(void *arg)
	{
	struct device *dev = arg;
	const struct uart_device_config *config = DEV_CFG(dev);
	struct uart_msp432p4xx_dev_data_t * const dev_data = DEV_DATA(dev);
	unsigned int int_status;

	int_status = MAP_UART_getEnabledInterruptStatus(
	(unsigned long)config->base);

	if (dev_data->cb) {
	dev_data->cb(dev_data->cb_data);
	}
	/*
	* Clear interrupts only after cb called, as Zephyr UART clients expect
	* to check interrupt status during the callback.
	*/
	MAP_UART_disableInterrupt((unsigned long)config->base, int_status);
	}
	#endif /* CONFIG_UART_INTERRUPT_DRIVEN */

	static const struct uart_driver_api uart_msp432p4xx_driver_api = {
	.poll_in = uart_msp432p4xx_poll_in,
	.poll_out = uart_msp432p4xx_poll_out,
	#ifdef CONFIG_UART_INTERRUPT_DRIVEN
	.fifo_fill = uart_msp432p4xx_fifo_fill,
	.fifo_read = uart_msp432p4xx_fifo_read,
	.irq_tx_enable = uart_msp432p4xx_irq_tx_enable,
	.irq_tx_disable = uart_msp432p4xx_irq_tx_disable,
	.irq_tx_ready = uart_msp432p4xx_irq_tx_ready,
	.irq_rx_enable = uart_msp432p4xx_irq_rx_enable,
	.irq_rx_disable = uart_msp432p4xx_irq_rx_disable,
	.irq_tx_complete = uart_msp432p4xx_irq_tx_complete,
	.irq_rx_ready = uart_msp432p4xx_irq_rx_ready,
	.irq_err_enable = uart_msp432p4xx_irq_err_enable,
	.irq_err_disable = uart_msp432p4xx_irq_err_disable,
	.irq_is_pending = uart_msp432p4xx_irq_is_pending,
	.irq_update = uart_msp432p4xx_irq_update,
	.irq_callback_set = uart_msp432p4xx_irq_callback_set,
	#endif /* CONFIG_UART_INTERRUPT_DRIVEN */
	};

	DEVICE_AND_API_INIT(uart_msp432p4xx_0, DT_UART_MSP432P4XX_NAME,
	uart_msp432p4xx_init, &uart_msp432p4xx_dev_data_0,
	&uart_msp432p4xx_dev_cfg_0,
	PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
	(void *)&uart_msp432p4xx_driver_api);