3ca48e3ae5
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4961 42af7a65-404d-4744-a932-0658087f49c3
73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
/*
|
|
* FreeModbus Libary: Linux 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 2006/08/01 20:58:49 wolti Exp $
|
|
*/
|
|
|
|
/* ----------------------- Modbus includes ----------------------------------*/
|
|
#include "mb.h"
|
|
#include "mbport.h"
|
|
|
|
/* ----------------------- Variables ----------------------------------------*/
|
|
static eMBEventType eQueuedEvent;
|
|
static BOOL xEventInQueue;
|
|
|
|
/* ----------------------- Start implementation -----------------------------*/
|
|
BOOL
|
|
xMBPortEventInit( void )
|
|
{
|
|
xEventInQueue = FALSE;
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL
|
|
xMBPortEventPost( eMBEventType eEvent )
|
|
{
|
|
xEventInQueue = TRUE;
|
|
eQueuedEvent = eEvent;
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL
|
|
xMBPortEventGet( eMBEventType * eEvent )
|
|
{
|
|
BOOL xEventHappened = FALSE;
|
|
|
|
if( xEventInQueue )
|
|
{
|
|
*eEvent = eQueuedEvent;
|
|
xEventInQueue = FALSE;
|
|
xEventHappened = TRUE;
|
|
}
|
|
else
|
|
{
|
|
/* Poll the serial device. The serial device timeouts if no
|
|
* characters have been received within for t3.5 during an
|
|
* active transmission or if nothing happens within a specified
|
|
* amount of time. Both timeouts are configured from the timer
|
|
* init functions.
|
|
*/
|
|
( void )xMBPortSerialPoll( );
|
|
|
|
/* Check if any of the timers have expired. */
|
|
vMBPortTimerPoll( );
|
|
|
|
}
|
|
return xEventHappened;
|
|
}
|