258 lines
8.8 KiB
C
258 lines
8.8 KiB
C
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/*
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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: $Id: portevent_m.c v 1.60 2013/08/13 15:07:05 Armink add Master
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* Functions$
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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 SemaphoreHandle_t xMasterRunRes;
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static EventGroupHandle_t xMasterOsEvent;
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/* ----------------------- Start implementation -----------------------------*/
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BOOL xMBMasterPortEventInit(void) {
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xMasterOsEvent = xEventGroupCreate();
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if (xMasterOsEvent != NULL) {
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MODBUS_DEBUG("xMBMasterPortEventInit Success!\r\n");
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} else {
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MODBUS_DEBUG("xMBMasterPortEventInit 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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BOOL xMBMasterPortEventPost(eMBMasterEventType eEvent) {
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BaseType_t flag;
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MODBUS_DEBUG("postEvent=%d\r\n", eEvent);
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if (xMasterOsEvent != NULL) {
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if (IS_IRQ()) {
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xEventGroupSetBitsFromISR(xMasterOsEvent, eEvent, &flag);
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} else {
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xEventGroupSetBits(xMasterOsEvent, eEvent);
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}
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}
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return TRUE;
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}
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BOOL xMBMasterPortEventGet(eMBMasterEventType *eEvent) {
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uint32_t recvedEvent;
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/* waiting forever OS event */
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recvedEvent =
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xEventGroupWaitBits(xMasterOsEvent, /* 事件对象句柄 */
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EV_MASTER_READY | EV_MASTER_FRAME_RECEIVED |
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EV_MASTER_EXECUTE | EV_MASTER_FRAME_SENT |
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EV_MASTER_ERROR_PROCESS, /* 接收任务感兴趣的事件
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*/
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pdTRUE, /* 退出时清除事件<E4BA8B>? */
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pdFALSE, /* 满足感兴趣的所有事<E69C89>? */
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portMAX_DELAY); /* 指定超时事件,无限等待 */
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/* the enum type couldn't convert to int type */
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switch (recvedEvent) {
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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
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* empty.
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*
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*/
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void vMBMasterOsResInit(void) {
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// rt_sem_init(&xMasterRunRes, "master res", 0x01, RT_IPC_FLAG_PRIO);
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xMasterRunRes = xSemaphoreCreateBinary();//创建二值信号量
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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
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* 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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/*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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if (lTimeOut == -1) {
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return xSemaphoreTake(xMasterRunRes, portMAX_DELAY);
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}
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return xSemaphoreTake(xMasterRunRes, lTimeOut);
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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
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* function can be empty.
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*
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*/
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void vMBMasterRunResRelease(void) {
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/* release resource */
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// rt_sem_release(&xMasterRunRes);
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xSemaphoreGive(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,
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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
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* stack. If you don't use OS, you can change it.
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*/
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xEventGroupSetBits(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
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* stack. 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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xEventGroupSetBits(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,
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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
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* stack. 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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xEventGroupSetBits(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
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* stack. 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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xEventGroupSetBits(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
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* function.
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* @note If you are use OS, you can use OS's event mechanism. Otherwise you have
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* to run 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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uint32_t recvedEvent;
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/* waiting for OS event */
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recvedEvent = xEventGroupWaitBits(
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xMasterOsEvent, /* 事件对象句柄 */
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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, /* 接收任务感兴趣的事件
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*/
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pdTRUE, /* 退出时清除事件<E4BA8B>? */
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pdFALSE, /* 满足感兴趣的所有事<E69C89>? */
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portMAX_DELAY); /* 指定超时事件,无限等待 */
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/* the enum type couldn't convert to int type */
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switch (recvedEvent) {
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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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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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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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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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