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4e59a51902
Zephyr v3.2.0 deprecated include/zephyr/zephyr.h in favor of include/zephyr/kernel.h since it only included that header. Signed-off-by: Maureen Helm <maureen.helm@intel.com>
146 lines
3.9 KiB
C
146 lines
3.9 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2016 Linaro Limited
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <unistd.h>
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#include "py/mpconfig.h"
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#include "py/runtime.h"
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#include "src/zephyr_getchar.h"
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// Zephyr headers
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#include <zephyr/kernel.h>
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#include <zephyr/device.h>
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#include <zephyr/console/console.h>
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#include <zephyr/console/tty.h>
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#include <zephyr/drivers/uart.h>
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#ifdef CONFIG_CONSOLE_SUBSYS
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static int mp_console_putchar(char c);
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static int mp_console_getchar(void);
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static struct tty_serial mp_console_serial;
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static uint8_t mp_console_rxbuf[CONFIG_CONSOLE_GETCHAR_BUFSIZE];
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static uint8_t mp_console_txbuf[CONFIG_CONSOLE_PUTCHAR_BUFSIZE];
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#endif // CONFIG_CONSOLE_SUBSYS
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/*
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* Core UART functions to implement for a port
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*/
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// Receive single character
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int mp_hal_stdin_rx_chr(void) {
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for (;;) {
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int _chr;
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#ifdef CONFIG_CONSOLE_SUBSYS
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_chr = mp_console_getchar();
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#else
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_chr = zephyr_getchar();
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#endif
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if (_chr >= 0) {
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return _chr;
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}
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MICROPY_EVENT_POLL_HOOK
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}
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}
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// Send string of given length
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mp_uint_t mp_hal_stdout_tx_strn(const char *str, mp_uint_t len) {
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mp_uint_t ret = len;
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#ifdef CONFIG_CONSOLE_SUBSYS
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while (len--) {
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char c = *str++;
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while (mp_console_putchar(c) == -1) {
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MICROPY_EVENT_POLL_HOOK
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}
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}
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#else
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static const struct device *uart_console_dev =
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DEVICE_DT_GET(DT_CHOSEN(zephyr_console));
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while (len--) {
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uart_poll_out(uart_console_dev, *str++);
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}
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#endif
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return ret;
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}
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#ifdef CONFIG_CONSOLE_SUBSYS
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int mp_console_init(void) {
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const struct device *uart_dev;
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int ret;
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uart_dev = DEVICE_DT_GET(DT_CHOSEN(zephyr_console));
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if (!device_is_ready(uart_dev)) {
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return -ENODEV;
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}
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ret = tty_init(&mp_console_serial, uart_dev);
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if (ret) {
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return ret;
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}
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/* Checks device driver supports for interrupt driven data transfers. */
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if (CONFIG_CONSOLE_GETCHAR_BUFSIZE + CONFIG_CONSOLE_PUTCHAR_BUFSIZE) {
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const struct uart_driver_api *api =
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(const struct uart_driver_api *)uart_dev->api;
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if (!api->irq_callback_set) {
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return -ENOTSUP;
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}
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}
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tty_set_tx_buf(&mp_console_serial, mp_console_txbuf, sizeof(mp_console_txbuf));
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tty_set_rx_buf(&mp_console_serial, mp_console_rxbuf, sizeof(mp_console_rxbuf));
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tty_set_rx_timeout(&mp_console_serial, 0);
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tty_set_tx_timeout(&mp_console_serial, 1);
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return 0;
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}
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static int mp_console_putchar(char c) {
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return tty_write(&mp_console_serial, &c, 1);
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}
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static int mp_console_getchar(void) {
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uint8_t c;
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int res;
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res = tty_read(&mp_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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#endif // CONFIG_CONSOLE_SUBSYS
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