76 lines
1.5 KiB
C
76 lines
1.5 KiB
C
/*
|
|
* Copyright (c) 2017 Linaro Limited.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <zephyr.h>
|
|
#include <device.h>
|
|
#include <console/console.h>
|
|
#include <console/tty.h>
|
|
#include <drivers/uart.h>
|
|
|
|
static struct tty_serial console_serial;
|
|
|
|
static u8_t console_rxbuf[CONFIG_CONSOLE_GETCHAR_BUFSIZE];
|
|
static u8_t console_txbuf[CONFIG_CONSOLE_PUTCHAR_BUFSIZE];
|
|
|
|
ssize_t console_write(void *dummy, const void *buf, size_t size)
|
|
{
|
|
ARG_UNUSED(dummy);
|
|
|
|
return tty_write(&console_serial, buf, size);
|
|
}
|
|
|
|
ssize_t console_read(void *dummy, void *buf, size_t size)
|
|
{
|
|
ARG_UNUSED(dummy);
|
|
|
|
return tty_read(&console_serial, buf, size);
|
|
}
|
|
|
|
int console_putchar(char c)
|
|
{
|
|
return tty_write(&console_serial, &c, 1);
|
|
}
|
|
|
|
int console_getchar(void)
|
|
{
|
|
u8_t c;
|
|
int res;
|
|
|
|
res = tty_read(&console_serial, &c, 1);
|
|
if (res < 0) {
|
|
return res;
|
|
}
|
|
|
|
return c;
|
|
}
|
|
|
|
int console_init(void)
|
|
{
|
|
struct device *uart_dev;
|
|
int ret;
|
|
|
|
uart_dev = device_get_binding(CONFIG_UART_CONSOLE_ON_DEV_NAME);
|
|
ret = tty_init(&console_serial, uart_dev);
|
|
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
|
|
/* Checks device driver supports for interrupt driven data transfers. */
|
|
if (CONFIG_CONSOLE_GETCHAR_BUFSIZE + CONFIG_CONSOLE_PUTCHAR_BUFSIZE) {
|
|
const struct uart_driver_api *api =
|
|
(const struct uart_driver_api *)uart_dev->driver_api;
|
|
if (!api->irq_callback_set) {
|
|
return -ENOTSUP;
|
|
}
|
|
}
|
|
|
|
tty_set_tx_buf(&console_serial, console_txbuf, sizeof(console_txbuf));
|
|
tty_set_rx_buf(&console_serial, console_rxbuf, sizeof(console_rxbuf));
|
|
|
|
return 0;
|
|
}
|