2  * @brief Pipe UART driver
4  * A pipe UART driver allowing application to handle all aspects of received
11  * SPDX-License-Identifier: Apache-2.0
19 #include <zephyr/drivers/uart.h>
32 static void uart_pipe_rx(const struct device *dev)  in uart_pipe_rx()  argument
38 		int avail = recv_buf_len - recv_off;  in uart_pipe_rx()
57 static void uart_pipe_isr(const struct device *dev, void *user_data)  in uart_pipe_isr()  argument
61 	uart_irq_update(dev);  in uart_pipe_isr()
63 	if (uart_irq_rx_ready(dev)) {  in uart_pipe_isr()
64 		uart_pipe_rx(dev);  in uart_pipe_isr()
72 	while (len--)  {  in uart_pipe_send()
79 static void uart_pipe_setup(const struct device *uart)  in uart_pipe_setup()  argument
83 	uart_irq_rx_disable(uart);  in uart_pipe_setup()
84 	uart_irq_tx_disable(uart);  in uart_pipe_setup()
87 	while (uart_fifo_read(uart, &c, 1)) {  in uart_pipe_setup()
91 	uart_irq_callback_set(uart, uart_pipe_isr);  in uart_pipe_setup()
93 	uart_irq_rx_enable(uart);  in uart_pipe_setup()