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zephyr/drivers/serial/uart_gecko.c

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/*
* Copyright (c) 2017, Christian Taedcke
* Copyright (c) 2020 Lemonbeat GmbH
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <errno.h>
#include <drivers/uart.h>
#include <em_usart.h>
#include <em_gpio.h>
#include <em_cmu.h>
#include <soc.h>
#define USART_PREFIX cmuClock_USART
#define UART_PREFIX cmuClock_UART
#define CLOCK_USART(id) _CONCAT(USART_PREFIX, id)
#define CLOCK_UART(id) _CONCAT(UART_PREFIX, id)
/* Helper define to determine if SOC supports hardware flow control */
#if ((_SILICON_LABS_32B_SERIES > 0) || \
(defined(_USART_ROUTEPEN_RTSPEN_MASK) && \
defined(_USART_ROUTEPEN_CTSPEN_MASK)))
#define HW_FLOWCONTROL_IS_SUPPORTED_BY_SOC
#endif
#define HAS_HFC_OR(inst) DT_INST_PROP(inst, hw_flow_control) ||
#define DT_DRV_COMPAT silabs_gecko_uart
/* Has any enabled uart instance hw-flow-control enabled? */
#define UART_GECKO_UART_HW_FLOW_CONTROL_ENABLED \
DT_INST_FOREACH_STATUS_OKAY(HAS_HFC_OR) 0
#undef DT_DRV_COMPAT
#define DT_DRV_COMPAT silabs_gecko_usart
/* Has any enabled usart instance hw-flow-control enabled? */
#define UART_GECKO_USART_HW_FLOW_CONTROL_ENABLED \
DT_INST_FOREACH_STATUS_OKAY(HAS_HFC_OR) 0
#if UART_GECKO_USART_HW_FLOW_CONTROL_ENABLED || \
UART_GECKO_UART_HW_FLOW_CONTROL_ENABLED
#define UART_GECKO_HW_FLOW_CONTROL
#endif
/* Sanity check for hardware flow control */
#if defined(UART_GECKO_HW_FLOW_CONTROL) && \
(!(defined(HW_FLOWCONTROL_IS_SUPPORTED_BY_SOC)))
#error "Hardware flow control is activated for at least one UART/USART, \
but not supported by this SOC"
#endif
#if defined(UART_GECKO_HW_FLOW_CONTROL) && \
(!defined(CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION) && \
!defined(GPIO_USART_ROUTEEN_RTSPEN))
#error "Driver not supporting hardware flow control for this SOC"
#endif
/**
* @brief Config struct for UART
*/
struct uart_gecko_config {
USART_TypeDef *base;
CMU_Clock_TypeDef clock;
uint32_t baud_rate;
#ifdef UART_GECKO_HW_FLOW_CONTROL
bool hw_flowcontrol;
#endif
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
void (*irq_config_func)(const struct device *dev);
#endif
struct soc_gpio_pin pin_rx;
struct soc_gpio_pin pin_tx;
#ifdef UART_GECKO_HW_FLOW_CONTROL
struct soc_gpio_pin pin_rts;
struct soc_gpio_pin pin_cts;
#endif
#ifdef CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION
uint8_t loc_rx;
uint8_t loc_tx;
#ifdef UART_GECKO_HW_FLOW_CONTROL
uint8_t loc_rts;
uint8_t loc_cts;
#endif
#else
uint8_t loc;
#endif
};
struct uart_gecko_data {
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
uart_irq_callback_user_data_t callback;
void *cb_data;
#endif
};
static int uart_gecko_poll_in(const struct device *dev, unsigned char *c)
{
const struct uart_gecko_config *config = dev->config;
uint32_t flags = USART_StatusGet(config->base);
if (flags & USART_STATUS_RXDATAV) {
*c = USART_Rx(config->base);
return 0;
}
return -1;
}
static void uart_gecko_poll_out(const struct device *dev, unsigned char c)
{
const struct uart_gecko_config *config = dev->config;
USART_Tx(config->base, c);
}
static int uart_gecko_err_check(const struct device *dev)
{
const struct uart_gecko_config *config = dev->config;
uint32_t flags = USART_IntGet(config->base);
int err = 0;
if (flags & USART_IF_RXOF) {
err |= UART_ERROR_OVERRUN;
}
if (flags & USART_IF_PERR) {
err |= UART_ERROR_PARITY;
}
if (flags & USART_IF_FERR) {
err |= UART_ERROR_FRAMING;
}
USART_IntClear(config->base, USART_IF_RXOF |
USART_IF_PERR |
USART_IF_FERR);
return err;
}
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static int uart_gecko_fifo_fill(const struct device *dev, const uint8_t *tx_data,
int len)
{
const struct uart_gecko_config *config = dev->config;
uint8_t num_tx = 0U;
while ((len - num_tx > 0) &&
(config->base->STATUS & USART_STATUS_TXBL)) {
config->base->TXDATA = (uint32_t)tx_data[num_tx++];
}
return num_tx;
}
static int uart_gecko_fifo_read(const struct device *dev, uint8_t *rx_data,
const int len)
{
const struct uart_gecko_config *config = dev->config;
uint8_t num_rx = 0U;
while ((len - num_rx > 0) &&
(config->base->STATUS & USART_STATUS_RXDATAV)) {
rx_data[num_rx++] = (uint8_t)config->base->RXDATA;
}
return num_rx;
}
static void uart_gecko_irq_tx_enable(const struct device *dev)
{
const struct uart_gecko_config *config = dev->config;
uint32_t mask = USART_IEN_TXBL | USART_IEN_TXC;
USART_IntEnable(config->base, mask);
}
static void uart_gecko_irq_tx_disable(const struct device *dev)
{
const struct uart_gecko_config *config = dev->config;
uint32_t mask = USART_IEN_TXBL | USART_IEN_TXC;
USART_IntDisable(config->base, mask);
}
static int uart_gecko_irq_tx_complete(const struct device *dev)
{
const struct uart_gecko_config *config = dev->config;
uint32_t flags = USART_IntGet(config->base);
USART_IntClear(config->base, USART_IF_TXC);
return (flags & USART_IF_TXC) != 0U;
}
static int uart_gecko_irq_tx_ready(const struct device *dev)
{
const struct uart_gecko_config *config = dev->config;
uint32_t flags = USART_IntGetEnabled(config->base);
return (flags & USART_IF_TXBL) != 0U;
}
static void uart_gecko_irq_rx_enable(const struct device *dev)
{
const struct uart_gecko_config *config = dev->config;
uint32_t mask = USART_IEN_RXDATAV;
USART_IntEnable(config->base, mask);
}
static void uart_gecko_irq_rx_disable(const struct device *dev)
{
const struct uart_gecko_config *config = dev->config;
uint32_t mask = USART_IEN_RXDATAV;
USART_IntDisable(config->base, mask);
}
static int uart_gecko_irq_rx_full(const struct device *dev)
{
const struct uart_gecko_config *config = dev->config;
uint32_t flags = USART_IntGet(config->base);
return (flags & USART_IF_RXDATAV) != 0U;
}
static int uart_gecko_irq_rx_ready(const struct device *dev)
{
const struct uart_gecko_config *config = dev->config;
uint32_t mask = USART_IEN_RXDATAV;
return (config->base->IEN & mask)
&& uart_gecko_irq_rx_full(dev);
}
static void uart_gecko_irq_err_enable(const struct device *dev)
{
const struct uart_gecko_config *config = dev->config;
USART_IntEnable(config->base, USART_IF_RXOF |
USART_IF_PERR |
USART_IF_FERR);
}
static void uart_gecko_irq_err_disable(const struct device *dev)
{
const struct uart_gecko_config *config = dev->config;
USART_IntDisable(config->base, USART_IF_RXOF |
USART_IF_PERR |
USART_IF_FERR);
}
static int uart_gecko_irq_is_pending(const struct device *dev)
{
return uart_gecko_irq_tx_ready(dev) || uart_gecko_irq_rx_ready(dev);
}
static int uart_gecko_irq_update(const struct device *dev)
{
return 1;
}
static void uart_gecko_irq_callback_set(const struct device *dev,
uart_irq_callback_user_data_t cb,
void *cb_data)
{
struct uart_gecko_data *data = dev->data;
data->callback = cb;
data->cb_data = cb_data;
}
static void uart_gecko_isr(const struct device *dev)
{
struct uart_gecko_data *data = dev->data;
if (data->callback) {
data->callback(dev, data->cb_data);
}
}
#endif /* CONFIG_UART_INTERRUPT_DRIVEN */
/**
* @brief Subroutine initializer of UART pins
*
* @param dev UART device to configure
*/
static void uart_gecko_init_pins(const struct device *dev)
{
const struct uart_gecko_config *config = dev->config;
/* Configure RX and TX */
soc_gpio_configure(&config->pin_rx);
soc_gpio_configure(&config->pin_tx);
#ifdef CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION
/* For SOCs with configurable pin locations (set in SOC Kconfig) */
config->base->ROUTEPEN = USART_ROUTEPEN_RXPEN | USART_ROUTEPEN_TXPEN;
config->base->ROUTELOC0 =
(config->loc_tx << _USART_ROUTELOC0_TXLOC_SHIFT) |
(config->loc_rx << _USART_ROUTELOC0_RXLOC_SHIFT);
config->base->ROUTELOC1 = _USART_ROUTELOC1_RESETVALUE;
#elif defined(USART_ROUTE_RXPEN) && defined(USART_ROUTE_TXPEN)
/* For olders SOCs with only one pin location */
config->base->ROUTE = USART_ROUTE_RXPEN | USART_ROUTE_TXPEN
| (config->loc << 8);
#elif defined(GPIO_USART_ROUTEEN_RXPEN) && defined(GPIO_USART_ROUTEEN_TXPEN)
GPIO->USARTROUTE[USART_NUM(config->base)].ROUTEEN =
GPIO_USART_ROUTEEN_TXPEN | GPIO_USART_ROUTEEN_RXPEN;
GPIO->USARTROUTE[USART_NUM(config->base)].TXROUTE =
(config->pin_tx.pin << _GPIO_USART_TXROUTE_PIN_SHIFT) |
(config->pin_tx.port << _GPIO_USART_TXROUTE_PORT_SHIFT);
GPIO->USARTROUTE[USART_NUM(config->base)].RXROUTE =
(config->pin_rx.pin << _GPIO_USART_RXROUTE_PIN_SHIFT) |
(config->pin_rx.port << _GPIO_USART_RXROUTE_PORT_SHIFT);
#endif /* CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION */
#ifdef UART_GECKO_HW_FLOW_CONTROL
/* Configure HW flow control (RTS, CTS) */
if (config->hw_flowcontrol) {
soc_gpio_configure(&config->pin_rts);
soc_gpio_configure(&config->pin_cts);
#ifdef CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION
config->base->ROUTEPEN =
USART_ROUTEPEN_RXPEN |
USART_ROUTEPEN_TXPEN |
USART_ROUTEPEN_RTSPEN |
USART_ROUTEPEN_CTSPEN;
config->base->ROUTELOC1 =
(config->loc_rts << _USART_ROUTELOC1_RTSLOC_SHIFT) |
(config->loc_cts << _USART_ROUTELOC1_CTSLOC_SHIFT);
#elif defined(GPIO_USART_ROUTEEN_RTSPEN) && defined(GPIO_USART_ROUTEEN_CTSPEN)
GPIO->USARTROUTE[USART_NUM(config->base)].ROUTEEN =
GPIO_USART_ROUTEEN_TXPEN |
GPIO_USART_ROUTEEN_RXPEN |
GPIO_USART_ROUTEPEN_RTSPEN |
GPIO_USART_ROUTEPEN_CTSPEN;
GPIO->USARTROUTE[USART_NUM(config->base)].RTSROUTE =
(config->pin_rts.pin << _GPIO_USART_RTSROUTE_PIN_SHIFT) |
(config->pin_rts.port << _GPIO_USART_RTSROUTE_PORT_SHIFT);
GPIO->USARTROUTE[USART_NUM(config->base)].CTSROUTE =
(config->pin_cts.pin << _GPIO_USART_CTSROUTE_PIN_SHIFT) |
(config->pin_cts.port << _GPIO_USART_CTSROUTE_PORT_SHIFT);
#endif /* CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION */
}
#endif /* UART_GECKO_HW_FLOW_CONTROL */
}
/**
* @brief Main initializer for UART
*
* @param dev UART device to be initialized
* @return int 0
*/
static int uart_gecko_init(const struct device *dev)
{
const struct uart_gecko_config *config = dev->config;
USART_InitAsync_TypeDef usartInit = USART_INITASYNC_DEFAULT;
/* The peripheral and gpio clock are already enabled from soc and gpio
* driver
*/
/* Enable USART clock */
CMU_ClockEnable(config->clock, true);
/* Init USART */
usartInit.baudrate = config->baud_rate;
#ifdef UART_GECKO_HW_FLOW_CONTROL
usartInit.hwFlowControl = config->hw_flowcontrol ?
usartHwFlowControlCtsAndRts : usartHwFlowControlNone;
#endif
USART_InitAsync(config->base, &usartInit);
/* Initialize USART pins */
uart_gecko_init_pins(dev);
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
config->irq_config_func(dev);
#endif
return 0;
}
static const struct uart_driver_api uart_gecko_driver_api = {
.poll_in = uart_gecko_poll_in,
.poll_out = uart_gecko_poll_out,
.err_check = uart_gecko_err_check,
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
.fifo_fill = uart_gecko_fifo_fill,
.fifo_read = uart_gecko_fifo_read,
.irq_tx_enable = uart_gecko_irq_tx_enable,
.irq_tx_disable = uart_gecko_irq_tx_disable,
.irq_tx_complete = uart_gecko_irq_tx_complete,
.irq_tx_ready = uart_gecko_irq_tx_ready,
.irq_rx_enable = uart_gecko_irq_rx_enable,
.irq_rx_disable = uart_gecko_irq_rx_disable,
.irq_rx_ready = uart_gecko_irq_rx_ready,
.irq_err_enable = uart_gecko_irq_err_enable,
.irq_err_disable = uart_gecko_irq_err_disable,
.irq_is_pending = uart_gecko_irq_is_pending,
.irq_update = uart_gecko_irq_update,
.irq_callback_set = uart_gecko_irq_callback_set,
#endif
};
#undef DT_DRV_COMPAT
#define DT_DRV_COMPAT silabs_gecko_uart
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
#define GECKO_UART_IRQ_HANDLER_DECL(idx) \
static void uart_gecko_config_func_##idx(const struct device *dev)
#define GECKO_UART_IRQ_HANDLER_FUNC(idx) \
.irq_config_func = uart_gecko_config_func_##idx,
#define GECKO_UART_IRQ_HANDLER(idx) \
static void uart_gecko_config_func_##idx(const struct device *dev) \
{ \
IRQ_CONNECT(DT_INST_IRQ_BY_NAME(idx, rx, irq), \
DT_INST_IRQ_BY_NAME(idx, rx, priority), \
uart_gecko_isr, DEVICE_DT_INST_GET(idx), 0); \
IRQ_CONNECT(DT_INST_IRQ_BY_NAME(idx, tx, irq), \
DT_INST_IRQ_BY_NAME(idx, tx, priority), \
uart_gecko_isr, DEVICE_DT_INST_GET(idx), 0); \
\
irq_enable(DT_INST_IRQ_BY_NAME(idx, rx, irq)); \
irq_enable(DT_INST_IRQ_BY_NAME(idx, tx, irq)); \
}
#else /* CONFIG_UART_INTERRUPT_DRIVEN */
#define GECKO_UART_IRQ_HANDLER_DECL(idx)
#define GECKO_UART_IRQ_HANDLER_FUNC(idx)
#define GECKO_UART_IRQ_HANDLER(idx)
#endif /* CONFIG_UART_INTERRUPT_DRIVEN */
#ifdef CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION
#define GECKO_UART_RX_TX_PIN_LOCATIONS(idx) \
.loc_rx = DT_INST_PROP_BY_IDX(idx, location_rx, 0), \
.loc_tx = DT_INST_PROP_BY_IDX(idx, location_tx, 0),
#define VALIDATE_GECKO_UART_RX_TX_PIN_LOCATIONS(idx)
#else
#define GECKO_UART_RX_TX_PIN_LOCATIONS(idx) \
.loc = DT_INST_PROP_BY_IDX(idx, location_rx, 0),
#define VALIDATE_GECKO_UART_RX_TX_PIN_LOCATIONS(idx) \
BUILD_ASSERT(DT_INST_PROP_BY_IDX(idx, location_rx, 0) == \
DT_INST_PROP_BY_IDX(idx, location_tx, 0), \
"DTS location-* properties must have identical value")
#endif
#define PIN_UART_RXD(idx) \
{ \
DT_INST_PROP_BY_IDX(idx, location_rx, 1), \
DT_INST_PROP_BY_IDX(idx, location_rx, 2), \
gpioModeInput, 1 \
}
#define PIN_UART_TXD(idx) \
{ \
DT_INST_PROP_BY_IDX(idx, location_tx, 1), \
DT_INST_PROP_BY_IDX(idx, location_tx, 2), \
gpioModePushPull, 1 \
}
#define GECKO_UART_RX_TX_PINS(idx) \
.pin_rx = PIN_UART_RXD(idx), \
.pin_tx = PIN_UART_TXD(idx),
#ifdef UART_GECKO_HW_FLOW_CONTROL
#ifdef CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION
#define GECKO_UART_RTS_CTS_PIN_LOCATIONS(idx) \
.loc_rts = COND_CODE_1(DT_INST_PROP(idx, hw_flow_control), \
(DT_INST_PROP_BY_IDX(idx, location_rts, 0)), \
(0)), \
.loc_cts = COND_CODE_1(DT_INST_PROP(idx, hw_flow_control), \
(DT_INST_PROP_BY_IDX(idx, location_cts, 0)), \
(0)),
#define VALIDATE_GECKO_UART_RTS_CTS_PIN_LOCATIONS(idx) \
COND_CODE_1(DT_INST_PROP(idx, hw_flow_control), \
(BUILD_ASSERT(DT_INST_NODE_HAS_PROP(idx, location_rts) && \
DT_INST_NODE_HAS_PROP(idx, location_cts), \
"DTS location-rts and location-cts are mandatory")), \
())
#else /* CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION */
/* Hardware flow control not supported for these SOCs */
#define GECKO_UART_RTS_CTS_PIN_LOCATIONS(idx)
#define VALIDATE_GECKO_UART_RTS_CTS_PIN_LOCATIONS(idx)
#endif /* CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION */
#define PIN_UART_RTS(idx) \
COND_CODE_1(DT_INST_PROP(idx, hw_flow_control), \
({ \
DT_INST_PROP_BY_IDX(idx, location_rts, 1), \
DT_INST_PROP_BY_IDX(idx, location_rts, 2), \
gpioModePushPull, 1 \
}), \
({0}))
#define PIN_UART_CTS(idx) \
COND_CODE_1(DT_INST_PROP(idx, hw_flow_control), \
({ \
DT_INST_PROP_BY_IDX(idx, location_cts, 1), \
DT_INST_PROP_BY_IDX(idx, location_cts, 2), \
gpioModeInput, 1 \
}), \
({0}))
#define GECKO_UART_RTS_CTS_PINS(idx) \
.pin_rts = PIN_UART_RTS(idx), \
.pin_cts = PIN_UART_CTS(idx),
#define GECKO_UART_HW_FLOW_CONTROL(idx) \
.hw_flowcontrol = DT_INST_PROP(idx, hw_flow_control),
#else /* UART_GECKO_HW_FLOW_CONTROL */
#define GECKO_UART_RTS_CTS_PIN_LOCATIONS(idx)
#define VALIDATE_GECKO_UART_RTS_CTS_PIN_LOCATIONS(idx)
#define GECKO_UART_RTS_CTS_PINS(idx)
#define GECKO_UART_HW_FLOW_CONTROL(idx)
#endif /* UART_GECKO_HW_FLOW_CONTROL */
#define GECKO_UART_INIT(idx) \
VALIDATE_GECKO_UART_RX_TX_PIN_LOCATIONS(idx); \
VALIDATE_GECKO_UART_RTS_CTS_PIN_LOCATIONS(idx); \
\
GECKO_UART_IRQ_HANDLER_DECL(idx); \
\
static const struct uart_gecko_config uart_gecko_cfg_##idx = { \
.base = (USART_TypeDef *)DT_INST_REG_ADDR(idx), \
.clock = CLOCK_UART(DT_INST_PROP(idx, peripheral_id)), \
.baud_rate = DT_INST_PROP(idx, current_speed), \
GECKO_UART_HW_FLOW_CONTROL(idx) \
GECKO_UART_RX_TX_PINS(idx) \
GECKO_UART_RTS_CTS_PINS(idx) \
GECKO_UART_RX_TX_PIN_LOCATIONS(idx) \
GECKO_UART_RTS_CTS_PIN_LOCATIONS(idx) \
GECKO_UART_IRQ_HANDLER_FUNC(idx) \
}; \
\
static struct uart_gecko_data uart_gecko_data_##idx; \
\
DEVICE_DT_INST_DEFINE(idx, &uart_gecko_init, \
NULL, &uart_gecko_data_##idx, \
&uart_gecko_cfg_##idx, PRE_KERNEL_1, \
CONFIG_SERIAL_INIT_PRIORITY, \
&uart_gecko_driver_api); \
\
\
GECKO_UART_IRQ_HANDLER(idx)
DT_INST_FOREACH_STATUS_OKAY(GECKO_UART_INIT)
#undef DT_DRV_COMPAT
#define DT_DRV_COMPAT silabs_gecko_usart
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
#define GECKO_USART_IRQ_HANDLER_DECL(idx) \
static void usart_gecko_config_func_##idx(const struct device *dev)
#define GECKO_USART_IRQ_HANDLER_FUNC(idx) \
.irq_config_func = usart_gecko_config_func_##idx,
#define GECKO_USART_IRQ_HANDLER(idx) \
static void usart_gecko_config_func_##idx(const struct device *dev) \
{ \
IRQ_CONNECT(DT_INST_IRQ_BY_NAME(idx, rx, irq), \
DT_INST_IRQ_BY_NAME(idx, rx, priority), \
uart_gecko_isr, DEVICE_DT_INST_GET(idx), 0); \
IRQ_CONNECT(DT_INST_IRQ_BY_NAME(idx, tx, irq), \
DT_INST_IRQ_BY_NAME(idx, tx, priority), \
uart_gecko_isr, DEVICE_DT_INST_GET(idx), 0); \
\
irq_enable(DT_INST_IRQ_BY_NAME(idx, rx, irq)); \
irq_enable(DT_INST_IRQ_BY_NAME(idx, tx, irq)); \
}
#else
#define GECKO_USART_IRQ_HANDLER_DECL(idx)
#define GECKO_USART_IRQ_HANDLER_FUNC(idx)
#define GECKO_USART_IRQ_HANDLER(idx)
#endif
#define GECKO_USART_INIT(idx) \
VALIDATE_GECKO_UART_RX_TX_PIN_LOCATIONS(idx); \
VALIDATE_GECKO_UART_RTS_CTS_PIN_LOCATIONS(idx); \
\
GECKO_USART_IRQ_HANDLER_DECL(idx); \
\
static const struct uart_gecko_config usart_gecko_cfg_##idx = { \
.base = (USART_TypeDef *)DT_INST_REG_ADDR(idx), \
.clock = CLOCK_USART(DT_INST_PROP(idx, peripheral_id)), \
.baud_rate = DT_INST_PROP(idx, current_speed), \
GECKO_UART_HW_FLOW_CONTROL(idx) \
GECKO_UART_RX_TX_PINS(idx) \
GECKO_UART_RTS_CTS_PINS(idx) \
GECKO_UART_RX_TX_PIN_LOCATIONS(idx) \
GECKO_UART_RTS_CTS_PIN_LOCATIONS(idx) \
GECKO_USART_IRQ_HANDLER_FUNC(idx) \
}; \
\
static struct uart_gecko_data usart_gecko_data_##idx; \
\
DEVICE_DT_INST_DEFINE(idx, &uart_gecko_init, NULL, \
&usart_gecko_data_##idx, \
&usart_gecko_cfg_##idx, PRE_KERNEL_1, \
CONFIG_SERIAL_INIT_PRIORITY, \
&uart_gecko_driver_api); \
\
GECKO_USART_IRQ_HANDLER(idx)
DT_INST_FOREACH_STATUS_OKAY(GECKO_USART_INIT)
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