stdio.c

/**
 * @file    stdio.c
 * @brief   Low level implementation of standard I/O functions
 */

/*******************************************************************************
 * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Except as contained in this notice, the name of Maxim Integrated
 * Products, Inc. shall not be used except as stated in the Maxim Integrated
 * Products, Inc. Branding Policy.
 *
 * The mere transfer of this software does not imply any licenses
 * of trade secrets, proprietary technology, copyrights, patents,
 * trademarks, maskwork rights, or any other form of intellectual
 * property whatsoever. Maxim Integrated Products, Inc. retains all
 * ownership rights.
 *
 * $Date: 2018-12-18 21:37:22 +0000 (Tue, 18 Dec 2018) $
 * $Revision: 40072 $
 *
 ******************************************************************************/

#include <errno.h>
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>

/* Device and Board specific includes */
#include "mxc_config.h"
#include "mxc_sys.h"
#include "board.h"
#include "uart.h"

/**
 * Address of the UART registers for the console output.
 * @note CONSOLE_UART must be defined in board.h.
 */
#define MXC_UARTn   MXC_UART_GET_UART(CONSOLE_UART)
/**
 * UART FIFO Address for the console UART.
 * @note CONSOLE_UART must be defined in board.h.
 */
#define UART_FIFO   MXC_UART_GET_FIFO(CONSOLE_UART)

/* Compiler Specific Includes */

/* GCC */
#if defined ( __GNUC__ )
#include <unistd.h>
#include <sys/stat.h>