0925411356
Let's have more orthogonal and cleaner API, where buffers are configured by tty_set_rx_buf/tty_set_tx_buf, and only them. It means that newly initialized tty starts in unbuffered mode, which is somewhat a sidestep from a main usecase behind tty, which is buffered operation, but again, having a cleaner API (and good docs, explaining users how it should be and what they should do) prevails. Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
58 lines
1.1 KiB
C
58 lines
1.1 KiB
C
/*
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* Copyright (c) 2017 Linaro Limited.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr.h>
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#include <device.h>
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#include <console.h>
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#include <tty.h>
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static struct tty_serial console_serial;
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static u8_t console_rxbuf[CONFIG_CONSOLE_GETCHAR_BUFSIZE];
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static u8_t console_txbuf[CONFIG_CONSOLE_PUTCHAR_BUFSIZE];
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ssize_t console_write(void *dummy, const void *buf, size_t size)
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{
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ARG_UNUSED(dummy);
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return tty_write(&console_serial, buf, size);
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}
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ssize_t console_read(void *dummy, void *buf, size_t size)
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{
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ARG_UNUSED(dummy);
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return tty_read(&console_serial, buf, size);
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}
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int console_putchar(char c)
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{
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return tty_write(&console_serial, &c, 1);
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}
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int console_getchar(void)
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{
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u8_t c;
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int res;
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res = tty_read(&console_serial, &c, 1);
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if (res < 0) {
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return res;
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}
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return c;
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}
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void console_init(void)
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{
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struct device *uart_dev;
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uart_dev = device_get_binding(CONFIG_UART_CONSOLE_ON_DEV_NAME);
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tty_init(&console_serial, uart_dev);
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tty_set_tx_buf(&console_serial, console_txbuf, sizeof(console_txbuf));
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tty_set_rx_buf(&console_serial, console_rxbuf, sizeof(console_rxbuf));
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}
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