portother.c

一个开源的Modbus协议栈

/*
 * FreeModbus Libary: MCF5235 Port
 * Copyright (C) 2006 Christian Walter <[e-mail]>
 * Parts of crt0.S Copyright (c) 1995, 1996, 1998 Cygnus Support
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * File: $Id: portother.c,v 1.1 2007/02/19 00:56:14 wolti Exp $
 */

/* ----------------------- System includes ----------------------------------*/
#include "port.h"
#include "mcf5xxx.h"
#include "mcf523x.h"

/* ----------------------- Modbus includes ----------------------------------*/
#include "mb.h"
#include "mbport.h"

/* ----------------------- Static variables ---------------------------------*/
static int      uiRegSR;
static char    *heap_ptr;

/* ----------------------- Start implementation -----------------------------*/
void
prvvPortEnterCritical(  )
{

    uiRegSR = asm_set_ipl( 7 );
}

void
prvvPortExitCritical(  )
{
    ( void )asm_set_ipl( ( uint32 ) uiRegSR );
}