1 /*
2 * FreeModbus Libary: RT-Thread Port
3 * Copyright (C) 2013 Armink <[email protected]>
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 *
19 * File: $Id: portevent.c,v 1.60 2013/08/13 15:07:05 Armink $
20 */
21
22 /* ----------------------- Modbus includes ----------------------------------*/
23 #include "mb.h"
24 #include "mbport.h"
25
26 /* ----------------------- Variables ----------------------------------------*/
27 static struct rt_event xSlaveOsEvent;
28 /* ----------------------- Start implementation -----------------------------*/
29 BOOL
xMBPortEventInit(void)30 xMBPortEventInit( void )
31 {
32 rt_event_init(&xSlaveOsEvent,"slave event",RT_IPC_FLAG_PRIO);
33 return TRUE;
34 }
35
36 BOOL
xMBPortEventPost(eMBEventType eEvent)37 xMBPortEventPost( eMBEventType eEvent )
38 {
39 rt_event_send(&xSlaveOsEvent, eEvent);
40 return TRUE;
41 }
42
43 BOOL
xMBPortEventGet(eMBEventType * eEvent)44 xMBPortEventGet( eMBEventType * eEvent )
45 {
46 rt_uint32_t recvedEvent;
47 /* waiting forever OS event */
48 rt_event_recv(&xSlaveOsEvent,
49 EV_READY | EV_FRAME_RECEIVED | EV_EXECUTE | EV_FRAME_SENT,
50 RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR, RT_WAITING_FOREVER,
51 &recvedEvent);
52 switch (recvedEvent)
53 {
54 case EV_READY:
55 *eEvent = EV_READY;
56 break;
57 case EV_FRAME_RECEIVED:
58 *eEvent = EV_FRAME_RECEIVED;
59 break;
60 case EV_EXECUTE:
61 *eEvent = EV_EXECUTE;
62 break;
63 case EV_FRAME_SENT:
64 *eEvent = EV_FRAME_SENT;
65 break;
66 }
67 return TRUE;
68 }
69