50 lines
926 B
C
50 lines
926 B
C
/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2017/10/15 bernard implement stdio for IAR dlib.
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*/
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#include <rtthread.h>
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#ifdef RT_USING_POSIX
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include "libc.h"
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#define STDIO_DEVICE_NAME_MAX 32
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static int std_fd = -1;
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int libc_stdio_set_console(const char* device_name, int mode)
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{
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int fd;
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char name[STDIO_DEVICE_NAME_MAX];
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snprintf(name, sizeof(name) - 1, "/dev/%s", device_name);
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name[STDIO_DEVICE_NAME_MAX - 1] = '\0';
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fd = open(name, mode, 0);
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if (fd >= 0)
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{
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if (std_fd >= 0)
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{
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close(std_fd);
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}
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std_fd = fd;
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}
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return std_fd;
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}
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int libc_stdio_get_console(void) {
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return std_fd;
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}
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#endif /* RT_USING_POSIX */
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