Source Code File:"portevent.c"

/*
 * FreeModbus Libary: BARE Port
 * Copyright (C) 2006 Christian Walter <wolti@sil.at>
 *
 * 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: portevent.c,v 1.1 2006/08/22 21:35:13 wolti Exp $
 */

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

#ifdef USING_NOVO
#include "novocfg_pic18t3e1ts2.h"
#include "novo.h"
#endif

/* ----------------------- Variables ----------------------------------------*/
static eMBEventType eQueuedEvent;
static BOOL     xEventInQueue;

/* ----------------------- Start implementation -----------------------------*/
BOOL
xMBPortEventInit( void )
{
#ifdef USING_NOVO
    SysStartTask(hTaskMB);
#else    
    xEventInQueue = FALSE;
#endif    
    return TRUE;
}

BOOL
xMBPortEventPost( eMBEventType eEvent )
{
#ifdef USING_NOVO
   SysSignalSemaphore(hSemaphoreMB);
#else   
    xEventInQueue = TRUE;
#endif    
    eQueuedEvent = eEvent;
    return TRUE;
}

BOOL
xMBPortEventGet( eMBEventType * eEvent )
{
#ifdef USING_NOVO
    Sys_WaitSemaphore(hSemaphoreMB, 0);
    *eEvent = eQueuedEvent;
    return TRUE;
#else    
BOOL            xEventHappened = FALSE;
   if( xEventInQueue )
   {
      xEventInQueue = FALSE;
      *eEvent = eQueuedEvent;
      xEventHappened = TRUE;
   }
   return xEventHappened;
#endif
}
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