You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
76 lines
2.2 KiB
76 lines
2.2 KiB
/* |
|
* FreeModbus Libary: NuttX Port |
|
* Based on the FreeModbus Linux port by: |
|
* |
|
* 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 <apps/modbus/mb.h> |
|
#include <apps/modbus/mbport.h> |
|
|
|
#include "port.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; |
|
}
|
|
|