mirror of
https://github.com/espressif/esp-idf.git
synced 2025-12-26 05:09:19 +00:00
a257812e14
esp_stdio contains everything the old esp_vfs_console contained (the vfs stdio glue layer) as well as other functionality related to stdio (previously referred to as console)
98 lines
2.7 KiB
C
98 lines
2.7 KiB
C
/*
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* SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <stdbool.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include <reent.h>
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#include <sys/fcntl.h>
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#include <sys/stat.h>
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#include "sdkconfig.h"
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#include "esp_rom_serial_output.h"
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#include "esp_system_console.h"
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ssize_t _write_r_console(struct _reent *r, int fd, const void * data, size_t size)
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{
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#if !CONFIG_ESP_CONSOLE_NONE
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const char* cdata = (const char*) data;
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if (fd == STDOUT_FILENO || fd == STDERR_FILENO) {
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for (size_t i = 0; i < size; ++i) {
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if (cdata[i] == '\n') {
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esp_system_console_put_char('\r');
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}
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esp_system_console_put_char(cdata[i]);
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}
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return size;
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}
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#endif //!CONFIG_ESP_CONSOLE_NONE
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__errno_r(r) = EBADF;
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return -1;
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}
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ssize_t _read_r_console(struct _reent *r, int fd, void * data, size_t size)
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{
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#if !CONFIG_ESP_CONSOLE_NONE
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char* cdata = (char*) data;
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if (fd == STDIN_FILENO) {
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size_t received;
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for (received = 0; received < size; ++received) {
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int status = esp_rom_output_rx_one_char((uint8_t*) &cdata[received]);
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if (status != 0) {
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break;
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}
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if (cdata[received] == '\r') {
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cdata[received] = '\n';
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}
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}
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if (received == 0) {
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__errno_r(r) = EWOULDBLOCK;
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return -1;
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}
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return received;
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}
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#endif //!CONFIG_ESP_CONSOLE_NONE
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__errno_r(r) = EBADF;
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return -1;
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}
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static ssize_t _fstat_r_console(struct _reent *r, int fd, struct stat * st)
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{
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if (fd == STDOUT_FILENO || fd == STDERR_FILENO) {
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memset(st, 0, sizeof(*st));
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/* This needs to be set so that stdout and stderr are line buffered. */
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st->st_mode = S_IFCHR;
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return 0;
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}
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__errno_r(r) = EBADF;
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return -1;
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}
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static int _fsync_console(int fd)
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{
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if (fd == STDOUT_FILENO || fd == STDERR_FILENO) {
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esp_rom_output_flush_tx(CONFIG_ESP_CONSOLE_ROM_SERIAL_PORT_NUM);
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return 0;
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}
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errno = EBADF;
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return -1;
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}
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/* The following weak definitions of syscalls will be used unless
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* another definition is provided. That definition may come from
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* VFS, LWIP, or the application.
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*/
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ssize_t _read_r(struct _reent *r, int fd, void *dst, size_t size)
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__attribute__((weak, alias("_read_r_console")));
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ssize_t _write_r(struct _reent *r, int fd, const void *data, size_t size)
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__attribute__((weak, alias("_write_r_console")));
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int _fstat_r(struct _reent *r, int fd, struct stat *st)
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__attribute__((weak, alias("_fstat_r_console")));
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int fsync(int fd)
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__attribute__((weak, alias("_fsync_console")));
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