blob: db2ba17765c8b69b803d9961c9445b369871d900 [file] [log] [blame]
/*
FreeRTOS MCF5235 port - Copyright (C) 2006 Christian Walter.
This file is part of the FreeRTOS distribution.
FreeRTOS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License** as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
FreeRTOS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FreeRTOS; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes FreeRTOS, without being obliged to provide
the source code for any proprietary components. See the licensing section
of http://www.FreeRTOS.org for full details of how and when the exception
can be applied.
***************************************************************************
***************************************************************************
* *
* Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation *
* *
* This is a concise, step by step, 'hands on' guide that describes both *
* general multitasking concepts and FreeRTOS specifics. It presents and *
* explains numerous examples that are written using the FreeRTOS API. *
* Full source code for all the examples is provided in an accompanying *
* .zip file. *
* *
***************************************************************************
***************************************************************************
Please ensure to read the configuration and relevant port sections of the
online documentation.
http://www.FreeRTOS.org - Documentation, latest information, license and
contact details.
http://www.SafeRTOS.com - A version that is certified for use in safety
critical systems.
http://www.OpenRTOS.com - Commercial support, development, porting,
licensing and training services.
*/
/* ------------------------ System includes ------------------------------- */
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>
/* ------------------------ FreeRTOS includes ----------------------------- */
#include <FreeRTOS.h>
#include <serial.h>
/* ------------------------ Prototypes ------------------------------------ */
void vSerialPutStringNOISR( xComPortHandle pxPort,
const signed portCHAR * const pcString,
unsigned portSHORT usStringLength );
/* ------------------------ Start implementation -------------------------- */
void
_exit( int status )
{
asm volatile ( "halt" );
for( ;; );
}
pid_t
getpid( void )
{
return 0;
}
int
kill( pid_t pid, int sig )
{
_exit( 0 );
}
int
close( int fd )
{
return 0;
}
int
fstat( int fd, struct stat *buf )
{
buf->st_mode = S_IFCHR;
buf->st_blksize = 0;
return 0;
}
ssize_t
write( int fd, const void *buf, size_t nbytes )
{
ssize_t res = nbytes;
extern xComPortHandle xSTDComPort;
switch ( fd )
{
case STDERR_FILENO:
vSerialPutStringNOISR( xSTDComPort,
( const signed portCHAR * const )buf,
( unsigned portSHORT )nbytes );
break;
case STDOUT_FILENO:
vSerialPutString( xSTDComPort,
( const signed portCHAR * const)buf,
( unsigned portSHORT )nbytes );
break;
default:
errno = EIO;
res = -1;
break;
}
return res;
}
int
read( int fd, void *buf, size_t nbytes )
{
switch ( fd )
{
default:
errno = EIO;
return -1;
}
}
int
isatty( int fd )
{
return 0;
}
off_t
lseek( int fd, off_t offset, int whence )
{
errno = EIO;
return ( off_t ) - 1;
}
extern char _end[];
char *heap_ptr;
void *
sbrk( ptrdiff_t nbytes )
{
char *base;
if( !heap_ptr )
heap_ptr = ( char * )&_end;
base = heap_ptr;
heap_ptr += nbytes;
return base;
}