blob: 2da0a660fe3166694f3a4179aa8a4722e76559ce [file] [log] [blame]
/*
* Copyright (c) 2017, Christian Taedcke
*
* 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_ID_PRFX2(prefix, suffix) prefix##suffix
#define CLOCK_ID_PRFX(prefix, suffix) CLOCK_ID_PRFX2(prefix, suffix)
#define CLOCK_USART(id) CLOCK_ID_PRFX(USART_PREFIX, id)
#define CLOCK_UART(id) CLOCK_ID_PRFX(UART_PREFIX, id)
struct uart_gecko_config {
USART_TypeDef *base;
CMU_Clock_TypeDef clock;
u32_t baud_rate;
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
void (*irq_config_func)(struct device *dev);
#endif
struct soc_gpio_pin pin_rx;
struct soc_gpio_pin pin_tx;
#ifdef CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION
u8_t loc_rx;
u8_t loc_tx;
#else
u8_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(struct device *dev, unsigned char *c)
{
const struct uart_gecko_config *config = dev->config->config_info;
u32_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(struct device *dev, unsigned char c)
{
const struct uart_gecko_config *config = dev->config->config_info;
USART_Tx(config->base, c);
}
static int uart_gecko_err_check(struct device *dev)
{
const struct uart_gecko_config *config = dev->config->config_info;
u32_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(struct device *dev, const u8_t *tx_data,
int len)
{
const struct uart_gecko_config *config = dev->config->config_info;
u8_t num_tx = 0U;
while ((len - num_tx > 0) &&
(config->base->STATUS & USART_STATUS_TXBL)) {
config->base->TXDATA = (u32_t)tx_data[num_tx++];
}
return num_tx;
}
static int uart_gecko_fifo_read(struct device *dev, u8_t *rx_data,
const int len)
{
const struct uart_gecko_config *config = dev->config->config_info;
u8_t num_rx = 0U;
while ((len - num_rx > 0) &&
(config->base->STATUS & USART_STATUS_RXDATAV)) {
rx_data[num_rx++] = (u8_t)config->base->RXDATA;
}
return num_rx;
}
static void uart_gecko_irq_tx_enable(struct device *dev)
{
const struct uart_gecko_config *config = dev->config->config_info;
u32_t mask = USART_IEN_TXBL | USART_IEN_TXC;
USART_IntEnable(config->base, mask);
}
static void uart_gecko_irq_tx_disable(struct device *dev)
{
const struct uart_gecko_config *config = dev->config->config_info;
u32_t mask = USART_IEN_TXBL | USART_IEN_TXC;
USART_IntDisable(config->base, mask);
}
static int uart_gecko_irq_tx_complete(struct device *dev)
{
const struct uart_gecko_config *config = dev->config->config_info;
u32_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(struct device *dev)
{
const struct uart_gecko_config *config = dev->config->config_info;
u32_t flags = USART_IntGet(config->base);
return (flags & USART_IF_TXBL) != 0U;
}
static void uart_gecko_irq_rx_enable(struct device *dev)
{
const struct uart_gecko_config *config = dev->config->config_info;
u32_t mask = USART_IEN_RXDATAV;
USART_IntEnable(config->base, mask);
}
static void uart_gecko_irq_rx_disable(struct device *dev)
{
const struct uart_gecko_config *config = dev->config->config_info;
u32_t mask = USART_IEN_RXDATAV;
USART_IntDisable(config->base, mask);
}
static int uart_gecko_irq_rx_full(struct device *dev)
{
const struct uart_gecko_config *config = dev->config->config_info;
u32_t flags = USART_IntGet(config->base);
return (flags & USART_IF_RXDATAV) != 0U;
}
static int uart_gecko_irq_rx_ready(struct device *dev)
{
const struct uart_gecko_config *config = dev->config->config_info;
u32_t mask = USART_IEN_RXDATAV;
return (config->base->IEN & mask)
&& uart_gecko_irq_rx_full(dev);
}
static void uart_gecko_irq_err_enable(struct device *dev)
{
const struct uart_gecko_config *config = dev->config->config_info;
USART_IntEnable(config->base, USART_IF_RXOF |
USART_IF_PERR |
USART_IF_FERR);
}
static void uart_gecko_irq_err_disable(struct device *dev)
{
const struct uart_gecko_config *config = dev->config->config_info;
USART_IntDisable(config->base, USART_IF_RXOF |
USART_IF_PERR |
USART_IF_FERR);
}
static int uart_gecko_irq_is_pending(struct device *dev)
{
return uart_gecko_irq_tx_ready(dev) || uart_gecko_irq_rx_ready(dev);
}
static int uart_gecko_irq_update(struct device *dev)
{
return 1;
}
static void uart_gecko_irq_callback_set(struct device *dev,
uart_irq_callback_user_data_t cb,
void *cb_data)
{
struct uart_gecko_data *data = dev->driver_data;
data->callback = cb;
data->cb_data = cb_data;
}
static void uart_gecko_isr(void *arg)
{
struct device *dev = arg;
struct uart_gecko_data *data = dev->driver_data;
if (data->callback) {
data->callback(data->cb_data);
}
}
#endif /* CONFIG_UART_INTERRUPT_DRIVEN */
static void uart_gecko_init_pins(struct device *dev)
{
const struct uart_gecko_config *config = dev->config->config_info;
soc_gpio_configure(&config->pin_rx);
soc_gpio_configure(&config->pin_tx);
#ifdef CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION
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;
#else
config->base->ROUTE = USART_ROUTE_RXPEN | USART_ROUTE_TXPEN
| (config->loc << 8);
#endif
}
static int uart_gecko_init(struct device *dev)
{
const struct uart_gecko_config *config = dev->config->config_info;
USART_InitAsync_TypeDef usartInit = USART_INITASYNC_DEFAULT;
/* The peripheral and gpio clock are already enabled from soc and gpio
* driver
*/
usartInit.baudrate = config->baud_rate;
/* Enable USART clock */
CMU_ClockEnable(config->clock, true);
/* Init USART */
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
};
#ifdef DT_INST_0_SILABS_GECKO_UART
#define PIN_UART0_RXD {DT_INST_0_SILABS_GECKO_UART_LOCATION_RX_1, \
DT_INST_0_SILABS_GECKO_UART_LOCATION_RX_2, gpioModeInput, 1}
#define PIN_UART0_TXD {DT_INST_0_SILABS_GECKO_UART_LOCATION_TX_1, \
DT_INST_0_SILABS_GECKO_UART_LOCATION_TX_2, gpioModePushPull, 1}
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void uart_gecko_config_func_0(struct device *dev);
#endif
static const struct uart_gecko_config uart_gecko_0_config = {
.base = (USART_TypeDef *)DT_INST_0_SILABS_GECKO_UART_BASE_ADDRESS,
.clock = CLOCK_UART(DT_INST_0_SILABS_GECKO_UART_PERIPHERAL_ID),
.baud_rate = DT_INST_0_SILABS_GECKO_UART_CURRENT_SPEED,
.pin_rx = PIN_UART0_RXD,
.pin_tx = PIN_UART0_TXD,
#ifdef CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION
.loc_rx = DT_INST_0_SILABS_GECKO_UART_LOCATION_RX_0,
.loc_tx = DT_INST_0_SILABS_GECKO_UART_LOCATION_TX_0,
#else
#if DT_INST_0_SILABS_GECKO_UART_LOCATION_RX_0 \
!= DT_INST_0_SILABS_GECKO_UART_LOCATION_TX_0
#error UART_0 DTS location-* properties must have identical value
#endif
.loc = DT_INST_0_SILABS_GECKO_UART_LOCATION_RX_0,
#endif
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
.irq_config_func = uart_gecko_config_func_0,
#endif
};
static struct uart_gecko_data uart_gecko_0_data;
DEVICE_AND_API_INIT(uart_0, DT_INST_0_SILABS_GECKO_UART_LABEL, &uart_gecko_init,
&uart_gecko_0_data, &uart_gecko_0_config, PRE_KERNEL_1,
CONFIG_KERNEL_INIT_PRIORITY_DEVICE, &uart_gecko_driver_api);
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void uart_gecko_config_func_0(struct device *dev)
{
IRQ_CONNECT(DT_INST_0_SILABS_GECKO_UART_IRQ_RX,
DT_INST_0_SILABS_GECKO_UART_IRQ_RX_PRIORITY, uart_gecko_isr,
DEVICE_GET(uart_0), 0);
IRQ_CONNECT(DT_INST_0_SILABS_GECKO_UART_IRQ_TX,
DT_INST_0_SILABS_GECKO_UART_IRQ_TX_PRIORITY, uart_gecko_isr,
DEVICE_GET(uart_0), 0);
irq_enable(DT_INST_0_SILABS_GECKO_UART_IRQ_RX);
irq_enable(DT_INST_0_SILABS_GECKO_UART_IRQ_TX);
}
#endif
#endif /* DT_INST_0_SILABS_GECKO_UART */
#ifdef DT_INST_1_SILABS_GECKO_UART
#define PIN_UART1_RXD {DT_INST_1_SILABS_GECKO_UART_LOCATION_RX_1, \
DT_INST_1_SILABS_GECKO_UART_LOCATION_RX_2, gpioModeInput, 1}
#define PIN_UART1_TXD {DT_INST_1_SILABS_GECKO_UART_LOCATION_TX_1, \
DT_INST_1_SILABS_GECKO_UART_LOCATION_TX_2, gpioModePushPull, 1}
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void uart_gecko_config_func_1(struct device *dev);
#endif
static const struct uart_gecko_config uart_gecko_1_config = {
.base = (USART_TypeDef *)DT_INST_1_SILABS_GECKO_UART_BASE_ADDRESS,
.clock = CLOCK_UART(DT_INST_1_SILABS_GECKO_UART_PERIPHERAL_ID),
.baud_rate = DT_INST_1_SILABS_GECKO_UART_CURRENT_SPEED,
.pin_rx = PIN_UART1_RXD,
.pin_tx = PIN_UART1_TXD,
#ifdef CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION
.loc_rx = DT_INST_1_SILABS_GECKO_UART_LOCATION_RX_0,
.loc_tx = DT_INST_1_SILABS_GECKO_UART_LOCATION_TX_0,
#else
#if DT_INST_1_SILABS_GECKO_UART_LOCATION_RX_0 \
!= DT_INST_1_SILABS_GECKO_UART_LOCATION_TX_0
#error UART_1 DTS location-* properties must have identical value
#endif
.loc = DT_INST_1_SILABS_GECKO_UART_LOCATION_RX_0,
#endif
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
.irq_config_func = uart_gecko_config_func_1,
#endif
};
static struct uart_gecko_data uart_gecko_1_data;
DEVICE_AND_API_INIT(uart_1, DT_INST_1_SILABS_GECKO_UART_LABEL, &uart_gecko_init,
&uart_gecko_1_data, &uart_gecko_1_config, PRE_KERNEL_1,
CONFIG_KERNEL_INIT_PRIORITY_DEVICE, &uart_gecko_driver_api);
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void uart_gecko_config_func_1(struct device *dev)
{
IRQ_CONNECT(DT_INST_1_SILABS_GECKO_UART_IRQ_RX,
DT_INST_1_SILABS_GECKO_UART_IRQ_RX_PRIORITY, uart_gecko_isr,
DEVICE_GET(uart_1), 0);
IRQ_CONNECT(DT_INST_1_SILABS_GECKO_UART_IRQ_TX,
DT_INST_1_SILABS_GECKO_UART_IRQ_TX_PRIORITY, uart_gecko_isr,
DEVICE_GET(uart_1), 0);
irq_enable(DT_INST_1_SILABS_GECKO_UART_IRQ_RX);
irq_enable(DT_INST_1_SILABS_GECKO_UART_IRQ_TX);
}
#endif
#endif /* DT_INST_1_SILABS_GECKO_UART */
#ifdef DT_INST_0_SILABS_GECKO_USART
#define PIN_USART0_RXD {DT_INST_0_SILABS_GECKO_USART_LOCATION_RX_1, \
DT_INST_0_SILABS_GECKO_USART_LOCATION_RX_2, gpioModeInput, 1}
#define PIN_USART0_TXD {DT_INST_0_SILABS_GECKO_USART_LOCATION_TX_1, \
DT_INST_0_SILABS_GECKO_USART_LOCATION_TX_2, gpioModePushPull, 1}
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void usart_gecko_config_func_0(struct device *dev);
#endif
static const struct uart_gecko_config usart_gecko_0_config = {
.base = (USART_TypeDef *)DT_INST_0_SILABS_GECKO_USART_BASE_ADDRESS,
.clock = CLOCK_USART(DT_INST_0_SILABS_GECKO_USART_PERIPHERAL_ID),
.baud_rate = DT_INST_0_SILABS_GECKO_USART_CURRENT_SPEED,
.pin_rx = PIN_USART0_RXD,
.pin_tx = PIN_USART0_TXD,
#ifdef CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION
.loc_rx = DT_INST_0_SILABS_GECKO_USART_LOCATION_RX_0,
.loc_tx = DT_INST_0_SILABS_GECKO_USART_LOCATION_TX_0,
#else
#if DT_INST_0_SILABS_GECKO_USART_LOCATION_RX_0 \
!= DT_INST_0_SILABS_GECKO_USART_LOCATION_TX_0
#error USART_0 DTS location-* properties must have identical value
#endif
.loc = DT_INST_0_SILABS_GECKO_USART_LOCATION_RX_0,
#endif
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
.irq_config_func = usart_gecko_config_func_0,
#endif
};
static struct uart_gecko_data usart_gecko_0_data;
DEVICE_AND_API_INIT(usart_0, DT_INST_0_SILABS_GECKO_USART_LABEL,
&uart_gecko_init, &usart_gecko_0_data,
&usart_gecko_0_config, PRE_KERNEL_1,
CONFIG_KERNEL_INIT_PRIORITY_DEVICE, &uart_gecko_driver_api);
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void usart_gecko_config_func_0(struct device *dev)
{
IRQ_CONNECT(DT_INST_0_SILABS_GECKO_USART_IRQ_RX,
DT_INST_0_SILABS_GECKO_USART_IRQ_RX_PRIORITY,
uart_gecko_isr, DEVICE_GET(usart_0), 0);
IRQ_CONNECT(DT_INST_0_SILABS_GECKO_USART_IRQ_TX,
DT_INST_0_SILABS_GECKO_USART_IRQ_TX_PRIORITY,
uart_gecko_isr, DEVICE_GET(usart_0), 0);
irq_enable(DT_INST_0_SILABS_GECKO_USART_IRQ_RX);
irq_enable(DT_INST_0_SILABS_GECKO_USART_IRQ_TX);
}
#endif
#endif /* DT_INST_0_SILABS_GECKO_USART */
#ifdef DT_INST_1_SILABS_GECKO_USART
#define PIN_USART1_RXD {DT_INST_1_SILABS_GECKO_USART_LOCATION_RX_1, \
DT_INST_1_SILABS_GECKO_USART_LOCATION_RX_2, gpioModeInput, 1}
#define PIN_USART1_TXD {DT_INST_1_SILABS_GECKO_USART_LOCATION_TX_1, \
DT_INST_1_SILABS_GECKO_USART_LOCATION_TX_2, gpioModePushPull, 1}
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void usart_gecko_config_func_1(struct device *dev);
#endif
static const struct uart_gecko_config usart_gecko_1_config = {
.base = (USART_TypeDef *)DT_INST_1_SILABS_GECKO_USART_BASE_ADDRESS,
.clock = CLOCK_USART(DT_INST_1_SILABS_GECKO_USART_PERIPHERAL_ID),
.baud_rate = DT_INST_1_SILABS_GECKO_USART_CURRENT_SPEED,
.pin_rx = PIN_USART1_RXD,
.pin_tx = PIN_USART1_TXD,
#ifdef CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION
.loc_rx = DT_INST_1_SILABS_GECKO_USART_LOCATION_RX_0,
.loc_tx = DT_INST_1_SILABS_GECKO_USART_LOCATION_TX_0,
#else
#if DT_INST_1_SILABS_GECKO_USART_LOCATION_RX_0 \
!= DT_INST_1_SILABS_GECKO_USART_LOCATION_TX_0
#error USART_1 DTS location-* properties must have identical value
#endif
.loc = DT_INST_1_SILABS_GECKO_USART_LOCATION_RX_0,
#endif
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
.irq_config_func = usart_gecko_config_func_1,
#endif
};
static struct uart_gecko_data usart_gecko_1_data;
DEVICE_AND_API_INIT(usart_1, DT_INST_1_SILABS_GECKO_USART_LABEL,
&uart_gecko_init, &usart_gecko_1_data,
&usart_gecko_1_config, PRE_KERNEL_1,
CONFIG_KERNEL_INIT_PRIORITY_DEVICE, &uart_gecko_driver_api);
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void usart_gecko_config_func_1(struct device *dev)
{
IRQ_CONNECT(DT_INST_1_SILABS_GECKO_USART_IRQ_RX,
DT_INST_1_SILABS_GECKO_USART_IRQ_RX_PRIORITY,
uart_gecko_isr, DEVICE_GET(usart_1), 0);
IRQ_CONNECT(DT_INST_1_SILABS_GECKO_USART_IRQ_TX,
DT_INST_1_SILABS_GECKO_USART_IRQ_TX_PRIORITY,
uart_gecko_isr, DEVICE_GET(usart_1), 0);
irq_enable(DT_INST_1_SILABS_GECKO_USART_IRQ_RX);
irq_enable(DT_INST_1_SILABS_GECKO_USART_IRQ_TX);
}
#endif
#endif /* DT_INST_1_SILABS_GECKO_USART */
#ifdef DT_INST_2_SILABS_GECKO_USART
#define PIN_USART2_RXD {DT_INST_2_SILABS_GECKO_USART_LOCATION_RX_1, \
DT_INST_2_SILABS_GECKO_USART_LOCATION_RX_2, gpioModeInput, 1}
#define PIN_USART2_TXD {DT_INST_2_SILABS_GECKO_USART_LOCATION_TX_1, \
DT_INST_2_SILABS_GECKO_USART_LOCATION_TX_2, gpioModePushPull, 1}
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void usart_gecko_config_func_2(struct device *dev);
#endif
static const struct uart_gecko_config usart_gecko_2_config = {
.base = (USART_TypeDef *)DT_INST_2_SILABS_GECKO_USART_BASE_ADDRESS,
.clock = CLOCK_USART(DT_INST_2_SILABS_GECKO_USART_PERIPHERAL_ID),
.baud_rate = DT_INST_2_SILABS_GECKO_USART_CURRENT_SPEED,
.pin_rx = PIN_USART2_RXD,
.pin_tx = PIN_USART2_TXD,
#ifdef CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION
.loc_rx = DT_INST_2_SILABS_GECKO_USART_LOCATION_RX_0,
.loc_tx = DT_INST_2_SILABS_GECKO_USART_LOCATION_TX_0,
#else
#if DT_INST_2_SILABS_GECKO_USART_LOCATION_RX_0 \
!= DT_INST_2_SILABS_GECKO_USART_LOCATION_TX_0
#error USART_2 DTS location-* properties must have identical value
#endif
.loc = DT_INST_2_SILABS_GECKO_USART_LOCATION_RX_0,
#endif
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
.irq_config_func = usart_gecko_config_func_2,
#endif
};
static struct uart_gecko_data usart_gecko_2_data;
DEVICE_AND_API_INIT(usart_2, DT_INST_2_SILABS_GECKO_USART_LABEL,
&uart_gecko_init, &usart_gecko_2_data,
&usart_gecko_2_config, PRE_KERNEL_1,
CONFIG_KERNEL_INIT_PRIORITY_DEVICE, &uart_gecko_driver_api);
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void usart_gecko_config_func_2(struct device *dev)
{
IRQ_CONNECT(DT_INST_2_SILABS_GECKO_USART_IRQ_RX,
DT_INST_2_SILABS_GECKO_USART_IRQ_RX_PRIORITY,
uart_gecko_isr, DEVICE_GET(usart_2), 0);
IRQ_CONNECT(DT_INST_2_SILABS_GECKO_USART_IRQ_TX,
DT_INST_2_SILABS_GECKO_USART_IRQ_TX_PRIORITY,
uart_gecko_isr, DEVICE_GET(usart_2), 0);
irq_enable(DT_INST_2_SILABS_GECKO_USART_IRQ_RX);
irq_enable(DT_INST_2_SILABS_GECKO_USART_IRQ_TX);
}
#endif
#endif /* DT_INST_2_SILABS_GECKO_USART */
#ifdef DT_INST_3_SILABS_GECKO_USART
#define PIN_USART3_RXD {DT_INST_3_SILABS_GECKO_USART_LOCATION_RX_1, \
DT_INST_3_SILABS_GECKO_USART_LOCATION_RX_2, gpioModeInput, 1}
#define PIN_USART3_TXD {DT_INST_3_SILABS_GECKO_USART_LOCATION_TX_1, \
DT_INST_3_SILABS_GECKO_USART_LOCATION_TX_2, gpioModePushPull, 1}
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void usart_gecko_config_func_3(struct device *dev);
#endif
static const struct uart_gecko_config usart_gecko_3_config = {
.base = (USART_TypeDef *)DT_INST_3_SILABS_GECKO_USART_BASE_ADDRESS,
.clock = CLOCK_USART(DT_INST_3_SILABS_GECKO_USART_PERIPHERAL_ID),
.baud_rate = DT_INST_3_SILABS_GECKO_USART_CURRENT_SPEED,
.pin_rx = PIN_USART3_RXD,
.pin_tx = PIN_USART3_TXD,
#ifdef CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION
.loc_rx = DT_INST_3_SILABS_GECKO_USART_LOCATION_RX_0,
.loc_tx = DT_INST_3_SILABS_GECKO_USART_LOCATION_TX_0,
#else
#if DT_INST_3_SILABS_GECKO_USART_LOCATION_RX_0 \
!= DT_INST_3_SILABS_GECKO_USART_LOCATION_TX_0
#error USART_3 DTS location-* properties must have identical value
#endif
.loc = DT_INST_3_SILABS_GECKO_USART_LOCATION_RX_0,
#endif
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
.irq_config_func = usart_gecko_config_func_3,
#endif
};
static struct uart_gecko_data usart_gecko_3_data;
DEVICE_AND_API_INIT(usart_3, DT_INST_3_SILABS_GECKO_USART_LABEL,
&uart_gecko_init, &usart_gecko_3_data,
&usart_gecko_3_config, PRE_KERNEL_1,
CONFIG_KERNEL_INIT_PRIORITY_DEVICE, &uart_gecko_driver_api);
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void usart_gecko_config_func_3(struct device *dev)
{
IRQ_CONNECT(DT_INST_3_SILABS_GECKO_USART_IRQ_RX,
DT_INST_3_SILABS_GECKO_USART_IRQ_RX_PRIORITY,
uart_gecko_isr, DEVICE_GET(usart_3), 0);
IRQ_CONNECT(DT_INST_3_SILABS_GECKO_USART_IRQ_TX,
DT_INST_3_SILABS_GECKO_USART_IRQ_TX_PRIORITY,
uart_gecko_isr, DEVICE_GET(usart_3), 0);
irq_enable(DT_INST_3_SILABS_GECKO_USART_IRQ_RX);
irq_enable(DT_INST_3_SILABS_GECKO_USART_IRQ_TX);
}
#endif
#endif /* DT_INST_3_SILABS_GECKO_USART */