nes-proj/cpu/arm/aducrf101/Common/RealView/Retarget.c

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/**
* Copyright (c) 2014, Analog Devices, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted (subject to the limitations in the
* disclaimer below) provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* - Neither the name of Analog Devices, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
* GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
* HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
Module : retarget.c
Description :
Date : December 2012
Version : v2.00
Changelog : v1.00 Initial
v2.00 use of UrtLib functions
*/
#include <stdio.h>
#include <rt_misc.h>
#include <include.h>
#pragma import(__use_no_semihosting_swi)
#define CR 0x0D
struct __FILE { int handle; /* Add whatever you need here */ };
FILE __stdout;
FILE __stdin;
// Re-targetting the Realview library functions
/*
* writes the character specified by c (converted to an unsigned char) to
* the output stream pointed to by stream, at the position indicated by the
* asociated file position indicator (if defined), and advances the
* indicator appropriately. If the file position indicator is not defined,
* the character is appended to the output stream.
* Returns: the character written. If a write error occurs, the error
* indicator is set and fputc returns EOF.
*/
int fputc(int ch, FILE * stream )
{
if(ch == '\n')
while(!(COMLSR_THRE==(UrtLinSta(0) & COMLSR_THRE)));
UrtTx(0, CR); /* output CR */
while(!(COMLSR_THRE==(UrtLinSta(0) & COMLSR_THRE)));
UrtTx(0, ch);
return(ch);
}
int __backspace(FILE *stream)
{
return 0x0;
}
/*
* obtains the next character (if present) as an unsigned char converted to
* an int, from the input stream pointed to by stream, and advances the
* associated file position indicator (if defined).
* Returns: the next character from the input stream pointed to by stream.
* If the stream is at end-of-file, the end-of-file indicator is
* set and fgetc returns EOF. If a read error occurs, the error
* indicator is set and fgetc returns EOF.
*/
int fgetc(FILE * stream)
{
return (UrtRx(0));
}
int ferror(FILE *f) {
/* Your implementation of ferror */
return EOF;
}
void _ttywrch(int ch) { UrtTx(0, ch); }
void _sys_exit(int return_code) {
label: goto label; /* endless loop */
}