2  * Copyright (c) 2016-2019 Nordic Semiconductor ASA
4  * SPDX-License-Identifier: Apache-2.0
117  * @retval -EINVAL for invalid baudrate.
192 		return -EINVAL;  in baudrate_set()
206  * @return 0 if a character arrived, -1 if the input buffer if empty.
212 		return -1;  in uart_nrfx_poll_in()
248 	 * return -EBUSY during poll_out.  in uart_nrfx_poll_out()
271 			if (--safety_cnt == 0) {  in uart_nrfx_poll_out()
311 	struct uart_nrfx_data *data = dev->data;  in uart_nrfx_configure()
315 	switch (cfg->stop_bits) {  in uart_nrfx_configure()
323 		return -ENOTSUP;  in uart_nrfx_configure()
326 	if (cfg->stop_bits != UART_CFG_STOP_BITS_1) {  in uart_nrfx_configure()
327 		return -ENOTSUP;  in uart_nrfx_configure()
331 	if (cfg->data_bits != UART_CFG_DATA_BITS_8) {  in uart_nrfx_configure()
332 		return -ENOTSUP;  in uart_nrfx_configure()
335 	switch (cfg->flow_ctrl) {  in uart_nrfx_configure()
343 			return -ENOTSUP;  in uart_nrfx_configure()
347 		return -ENOTSUP;  in uart_nrfx_configure()
353 	switch (cfg->parity) {  in uart_nrfx_configure()
367 		return -ENOTSUP;  in uart_nrfx_configure()
370 	if (baudrate_set(dev, cfg->baudrate) != 0) {  in uart_nrfx_configure()
371 		return -ENOTSUP;  in uart_nrfx_configure()
376 	data->uart_config = *cfg;  in uart_nrfx_configure()
385 	struct uart_nrfx_data *data = dev->data;  in uart_nrfx_config_get()
387 	*cfg = data->uart_config;  in uart_nrfx_config_get()
423 		return -EBUSY;  in uart_nrfx_tx()
444 		return -EINVAL;  in uart_nrfx_tx_abort()
473 		return -ENOTSUP;  in uart_nrfx_rx_enable()
477 		return -EBUSY;  in uart_nrfx_rx_enable()
505 		err = -EACCES;  in uart_nrfx_rx_buf_rsp()
507 		err = -EBUSY;  in uart_nrfx_rx_buf_rsp()
522 		return -EFAULT;  in uart_nrfx_rx_disable()
540 	event.data.rx.buf = uart0_cb.rx_buffer;  in rx_rdy_evt()
541 	event.data.rx.len = rx_cnt - uart0_cb.rx_offset;  in rx_rdy_evt()
542 	event.data.rx.offset = uart0_cb.rx_offset;  in rx_rdy_evt()
586 		/* Byte received when receiving is disabled - data lost. */  in rx_isr()
621 			/* Switch to secondary buffer. */  in rx_isr()
700 					 - uart0_cb.rx_offset,  in error_isr()
701 		.data.rx_stop.data.offset = uart0_cb.rx_offset,  in error_isr()
711  * In nRF hardware RX timeout can occur only after stopping the peripheral,
720 	if (uart0_cb.rx_counter - uart0_cb.rx_offset) {  in rxto_isr()
791 	while ((len - num_tx > 0) &&  in uart_nrfx_fifo_fill()
811 	while ((size - num_rx > 0) &&  in uart_nrfx_fifo_read()
846 		/* Due to HW limitation first TXDRDY interrupt shall be  in uart_nrfx_irq_tx_enable()
989 	const struct uart_nrfx_config *config = dev->config;  in uart_nrfx_init()
990 	struct uart_nrfx_data *data = dev->data;  in uart_nrfx_init()
995 	err = pinctrl_apply_state(config->pcfg, PINCTRL_STATE_DEFAULT);  in uart_nrfx_init()
1001 	err = uart_nrfx_configure(dev, &data->uart_config);  in uart_nrfx_init()
1085 	const struct uart_nrfx_config *config = dev->config;  in uart_nrfx_pm_action()
1090 		ret = pinctrl_apply_state(config->pcfg, PINCTRL_STATE_DEFAULT);  in uart_nrfx_pm_action()
1103 		ret = pinctrl_apply_state(config->pcfg, PINCTRL_STATE_SLEEP);  in uart_nrfx_pm_action()
1109 		return -ENOTSUP;  in uart_nrfx_pm_action()