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135 lines
3.5 KiB
135 lines
3.5 KiB
/*
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* FreeModbus Libary: BARE Port
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* Copyright (C) 2006 Christian Walter <wolti@sil.at>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* File: $Id$
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*/
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/* ----------------------- Modbus includes ----------------------------------*/
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#include "mb.h"
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#include "mbport.h"
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#include "port.h"
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#if MODBUS_USED_FREERTOS
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#include <FreeRTOS.h>
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// #include <task.h>
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// #include <queue.h>
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osEventFlagsId_t modbusEventHandle;
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const osEventFlagsAttr_t modbusEvent_attributes = {
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.name = "modbusEvent"
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};
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BOOL xMBPortEventInit(void) {
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ENTER_CRITICAL_SECTION();
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modbusEventHandle = osEventFlagsNew(&modbusEvent_attributes);
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EXIT_CRITICAL_SECTION();
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if (modbusEventHandle != NULL) {
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// MODBUS_DEBUG("xMBPortEventInit Success!\r\n");
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} else {
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// MODBUS_DEBUG("xMBPortEventInit Faild !\r\n");
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return FALSE;
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}
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return TRUE;
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}
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void
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vMBPortEventClose( void )
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{
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if(modbusEventHandle != NULL )
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{
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osEventFlagsDelete( modbusEventHandle );
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modbusEventHandle = NULL;
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}
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}
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BOOL xMBPortEventPost(eMBEventType eEvent) {
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BaseType_t flag;
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// osEventFlagsSet 兼容了是否在中断中的操作，否则需要判断是否在中断中
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if (modbusEventHandle != NULL) {
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osEventFlagsSet(modbusEventHandle,eEvent);
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}
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return TRUE;
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}
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BOOL xMBPortEventGet(eMBEventType *eEvent) {
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uint32_t recvedEvent;
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/* waiting forever OS event */
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recvedEvent = osEventFlagsWait (modbusEventHandle,
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EV_READY | EV_FRAME_RECEIVED | EV_EXECUTE |
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EV_FRAME_SENT, /* 接收任务感兴趣的事件 */
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0,
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portMAX_DELAY); /* 指定超时事件,无限等待 */
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switch (recvedEvent) {
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case EV_READY:
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*eEvent = EV_READY;
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break;
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case EV_FRAME_RECEIVED:
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*eEvent = EV_FRAME_RECEIVED;
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break;
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case EV_EXECUTE:
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*eEvent = EV_EXECUTE;
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break;
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case EV_FRAME_SENT:
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*eEvent = EV_FRAME_SENT;
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break;
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}
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return TRUE;
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}
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#else
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// /* ----------------------- Variables ----------------------------------------*/
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// static eMBEventType eQueuedEvent;
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// static BOOL xEventInQueue;
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// /* ----------------------- Start implementation -----------------------------*/
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// BOOL
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// xMBPortEventInit( void )
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// {
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// xEventInQueue = FALSE;
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// return TRUE;
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// }
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// BOOL
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// xMBPortEventPost( eMBEventType eEvent )
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// {
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// xEventInQueue = TRUE;
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// eQueuedEvent = eEvent;
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// return TRUE;
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// }
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// BOOL
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// xMBPortEventGet( eMBEventType * eEvent )
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// {
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// BOOL xEventHappened = FALSE;
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// if( xEventInQueue )
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// {
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// *eEvent = eQueuedEvent;
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// xEventInQueue = FALSE;
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// xEventHappened = TRUE;
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// }
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// return xEventHappened;
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// }
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#endif |