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/*
* Copyright (C) 2015 Freie Universitรคt Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup cpu_msp430fxyz
* @{
*
* @file
* @brief Implementation of getchar and putchar for MSP430 CPUs
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <sys/types.h>
#include <unistd.h>
#include "uart_stdio.h"
/**
* @brief Get one character from STDIO - used by the libc
*/
int getchar(void)
{
char c;
uart_stdio_read(&c, 1);
return c;
}
/**
* @brief Write one character to the STDIO UART interface - used by e.g.
* printf and puts
*/
int putchar(int c)
{
char _c = c;
return uart_stdio_write(&_c, 1);
}
/**
* @brief Write nbyte characters to the STDIO UART interface
*/
ssize_t write(int fildes, const void *buf, size_t nbyte)
{
if (fildes == STDOUT_FILENO) {
return uart_stdio_write(buf, nbyte);
}
else {
return -1;
}
}
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