240 lines
7.5 KiB
C
240 lines
7.5 KiB
C
/*
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* FreeModbus Libary: RT-Thread Port
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* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
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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: $Id: portevent_m.c v 1.60 2013/08/13 15:07:05 Armink add Master Functions$
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*/
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/* ----------------------- Modbus includes ----------------------------------*/
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#include "mb.h"
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#include "mb_m.h"
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#include "mbport.h"
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#include "port.h"
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#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
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/* ----------------------- Defines ------------------------------------------*/
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/* ----------------------- Variables ----------------------------------------*/
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static struct rt_semaphore xMasterRunRes;
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static struct rt_event xMasterOsEvent;
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/* ----------------------- Start implementation -----------------------------*/
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BOOL
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xMBMasterPortEventInit( void )
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{
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rt_event_init(&xMasterOsEvent,"master event",RT_IPC_FLAG_PRIO);
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return TRUE;
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}
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BOOL
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xMBMasterPortEventPost( eMBMasterEventType eEvent )
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{
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rt_event_send(&xMasterOsEvent, eEvent);
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return TRUE;
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}
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BOOL
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xMBMasterPortEventGet( eMBMasterEventType * eEvent )
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{
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rt_uint32_t recvedEvent;
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/* waiting forever OS event */
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rt_event_recv(&xMasterOsEvent,
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EV_MASTER_READY | EV_MASTER_FRAME_RECEIVED | EV_MASTER_EXECUTE |
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EV_MASTER_FRAME_SENT | EV_MASTER_ERROR_PROCESS,
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RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR, RT_WAITING_FOREVER,
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&recvedEvent);
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/* the enum type couldn't convert to int type */
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switch (recvedEvent)
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{
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case EV_MASTER_READY:
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*eEvent = EV_MASTER_READY;
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break;
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case EV_MASTER_FRAME_RECEIVED:
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*eEvent = EV_MASTER_FRAME_RECEIVED;
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break;
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case EV_MASTER_EXECUTE:
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*eEvent = EV_MASTER_EXECUTE;
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break;
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case EV_MASTER_FRAME_SENT:
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*eEvent = EV_MASTER_FRAME_SENT;
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break;
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case EV_MASTER_ERROR_PROCESS:
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*eEvent = EV_MASTER_ERROR_PROCESS;
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break;
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}
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return TRUE;
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}
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/**
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* This function is initialize the OS resource for modbus master.
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* Note:The resource is define by OS.If you not use OS this function can be empty.
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*
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*/
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void vMBMasterOsResInit( void )
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{
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rt_sem_init(&xMasterRunRes, "master res", 0x01 , RT_IPC_FLAG_PRIO);
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}
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/**
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* This function is take Mobus Master running resource.
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* Note:The resource is define by Operating System.If you not use OS this function can be just return TRUE.
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*
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* @param lTimeOut the waiting time.
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*
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* @return resource taked result
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*/
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BOOL xMBMasterRunResTake( LONG lTimeOut )
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{
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/*If waiting time is -1 .It will wait forever */
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return rt_sem_take(&xMasterRunRes, lTimeOut) ? FALSE : TRUE ;
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}
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/**
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* This function is release Mobus Master running resource.
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* Note:The resource is define by Operating System.If you not use OS this function can be empty.
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*
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*/
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void vMBMasterRunResRelease( void )
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{
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/* release resource */
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rt_sem_release(&xMasterRunRes);
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}
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/**
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* This is modbus master respond timeout error process callback function.
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* @note There functions will block modbus master poll while execute OS waiting.
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* So,for real-time of system.Do not execute too much waiting process.
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*
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* @param ucDestAddress destination salve address
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* @param pucPDUData PDU buffer data
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* @param ucPDULength PDU buffer length
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*
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*/
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void vMBMasterErrorCBRespondTimeout(UCHAR ucDestAddress, const UCHAR* pucPDUData,
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USHORT ucPDULength) {
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/**
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* @note This code is use OS's event mechanism for modbus master protocol stack.
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* If you don't use OS, you can change it.
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*/
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rt_event_send(&xMasterOsEvent, EV_MASTER_ERROR_RESPOND_TIMEOUT);
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/* You can add your code under here. */
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}
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/**
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* This is modbus master receive data error process callback function.
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* @note There functions will block modbus master poll while execute OS waiting.
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* So,for real-time of system.Do not execute too much waiting process.
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*
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* @param ucDestAddress destination salve address
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* @param pucPDUData PDU buffer data
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* @param ucPDULength PDU buffer length
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*
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*/
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void vMBMasterErrorCBReceiveData(UCHAR ucDestAddress, const UCHAR* pucPDUData,
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USHORT ucPDULength) {
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/**
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* @note This code is use OS's event mechanism for modbus master protocol stack.
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* If you don't use OS, you can change it.
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*/
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rt_event_send(&xMasterOsEvent, EV_MASTER_ERROR_RECEIVE_DATA);
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/* You can add your code under here. */
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}
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/**
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* This is modbus master execute function error process callback function.
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* @note There functions will block modbus master poll while execute OS waiting.
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* So,for real-time of system.Do not execute too much waiting process.
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*
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* @param ucDestAddress destination salve address
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* @param pucPDUData PDU buffer data
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* @param ucPDULength PDU buffer length
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*
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*/
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void vMBMasterErrorCBExecuteFunction(UCHAR ucDestAddress, const UCHAR* pucPDUData,
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USHORT ucPDULength) {
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/**
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* @note This code is use OS's event mechanism for modbus master protocol stack.
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* If you don't use OS, you can change it.
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*/
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rt_event_send(&xMasterOsEvent, EV_MASTER_ERROR_EXECUTE_FUNCTION);
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/* You can add your code under here. */
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}
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/**
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* This is modbus master request process success callback function.
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* @note There functions will block modbus master poll while execute OS waiting.
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* So,for real-time of system.Do not execute too much waiting process.
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*
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*/
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void vMBMasterCBRequestScuuess( void ) {
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/**
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* @note This code is use OS's event mechanism for modbus master protocol stack.
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* If you don't use OS, you can change it.
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*/
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rt_event_send(&xMasterOsEvent, EV_MASTER_PROCESS_SUCESS);
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/* You can add your code under here. */
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}
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/**
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* This function is wait for modbus master request finish and return result.
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* Waiting result include request process success, request respond timeout,
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* receive data error and execute function error.You can use the above callback function.
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* @note If you are use OS, you can use OS's event mechanism. Otherwise you have to run
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* much user custom delay for waiting.
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*
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* @return request error code
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*/
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eMBMasterReqErrCode eMBMasterWaitRequestFinish( void ) {
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eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
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rt_uint32_t recvedEvent;
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/* waiting for OS event */
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rt_event_recv(&xMasterOsEvent,
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EV_MASTER_PROCESS_SUCESS | EV_MASTER_ERROR_RESPOND_TIMEOUT
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| EV_MASTER_ERROR_RECEIVE_DATA
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| EV_MASTER_ERROR_EXECUTE_FUNCTION,
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RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR, RT_WAITING_FOREVER,
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&recvedEvent);
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switch (recvedEvent)
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{
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case EV_MASTER_PROCESS_SUCESS:
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break;
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case EV_MASTER_ERROR_RESPOND_TIMEOUT:
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{
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eErrStatus = MB_MRE_TIMEDOUT;
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break;
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}
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case EV_MASTER_ERROR_RECEIVE_DATA:
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{
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eErrStatus = MB_MRE_REV_DATA;
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break;
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}
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case EV_MASTER_ERROR_EXECUTE_FUNCTION:
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{
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eErrStatus = MB_MRE_EXE_FUN;
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break;
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}
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}
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return eErrStatus;
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}
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#endif
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