repos_ecs/Device/ICPDAS(单个变量请求版本)/icpdas.cpp

// MGE.cpp : 定义 DLL 的初始化例程。
//

#include "stdafx.h"
#include "icpdas.h"
#include "CommRS232.h"
#include "Head.h"
#include "winsock2.h"
#include "ProtocolModbus.h"
#include <stdlib.h>

#pragma   comment(lib,   "ws2_32.lib ")

vector<__COM_STRUCT> g_vtComStruct;
//vector<__BASIC_STRUCT> g_vtReadBasicInfo;

#ifdef _DEBUG
#define new DEBUG_NEW
#endif

BOOL InitComm( int nAddr, 
			  int nCommPort, 
			  int nRate, 
			  int nDataBit, 
			  int nStopBit, 
			  int nParity, 
			  int nInterval );

int CommDataCollect(int nCommPort, 
					int nAddr, 
					BYTE Start,//起始位
					BYTE StartAddr[2],//起始地址
					int nRegNum,//读取的寄存器个数
					BYTE FuncCode[2], 
					int nDataLen,
					BYTE byWithAddrFlag,
					char chMsg[80]);

int GetCommIndex( int nCommPort, int nAddr );

// CMGEApp

BEGIN_MESSAGE_MAP(CIcpdasApp, CWinApp)
END_MESSAGE_MAP()


// CMGEApp 构造

CIcpdasApp::CIcpdasApp()
{
	// TODO: 在此处添加构造代码，
	// 将所有重要的初始化放置在 InitInstance 中

}


// 唯一的一个 CMGEApp 对象

CIcpdasApp theApp;


// CMGEApp 初始化

BOOL CIcpdasApp::InitInstance()
{
	CWinApp::InitInstance();

	return TRUE;
}

int CIcpdasApp::ExitInstance()
{
	// TODO: 在此添加专用代码和/或调用基类

	// 关闭已经打开的串口
	for( unsigned int i = 0; i < g_vtComStruct.size(); i++ )
	{
		if( g_vtComStruct[i].pComm )
		{
			delete g_vtComStruct[i].pComm;
			g_vtComStruct[i].pComm = NULL;
		}
	}

	return CWinApp::ExitInstance();
}

int ICPDAS_DLLInit( int nCommPort, 
					int nAddr, 
					BYTE Start,//起始位
					BYTE StartAddr[2],//起始地址
					int nRegNum,//读取的寄存器个数
					BYTE FuncCode[2], 
					int nDataLen,
					BYTE byWithAddrFlag,
					char chMsg[80])
{
	return  CommDataCollect(nCommPort, 
					nAddr, 
					Start,
					StartAddr,
					nRegNum,
					FuncCode, 
					nDataLen,
					byWithAddrFlag, chMsg);
}

void ICPDAS_DLLUnInit()
{
	// 关闭串口，放到退出Dll时去关闭 ExitInstance
	return;
}

//初始化串口
BOOL ICPDAS_DLLInitCom( int nAddr, int nCommPort, int nRate, int nDataBit, int nStopBit, int nParity, int nInterval)
{
	if (InitComm( nAddr, nCommPort, nRate, nDataBit, nStopBit, nParity, nInterval ))
	{
		return TRUE;
	}
	else
	{
		return FALSE;
	}
}

BOOL InitComm( int nAddr, int nCommPort, int nRate, int nDataBit, int nStopBit, int nParity, int nInterval )
{
	CCommAsyn *pComm = NULL;
	int nCommIndex = GetCommIndex( nCommPort, nAddr );
	if( nCommIndex == -1 )
	{
		pComm = new CCommRS232;
		PORTPARAM portParam; 
		portParam.StartAddr = nAddr;		//起止地址	
		portParam.PortNo = nCommPort;		//Com端口
		portParam.BaudRate = nRate;		//波特率
		portParam.ByteSize = nDataBit;	// Number of bits/byte, 4-8       
		portParam.StopBits = nStopBit;	/* 结束位 0,1,2 = 1, 1.5, 2               */
		portParam.Parity = nParity;		/* 校验位 0-4=None,Odd,Even,Mark,Space    */
		portParam.Interval = nInterval;	//间隔时间
		if(!pComm->InitParam(&portParam))
		{
			delete pComm;
			pComm = NULL;
			return FALSE;
		}
		else
		{
			COM_STRUCT tagComStruct;
			tagComStruct.nAddr = nAddr;
			tagComStruct.nCommPort = nCommPort;
			tagComStruct.pComm = pComm;

			// 串口只打开一次且按顺序打开，不存在资源共享冲突，所以不用加保护 
			g_vtComStruct.push_back( tagComStruct );
		}
	}

	return TRUE;
}

int ICPDAS_DLLRequestStatusData(int nCommPort, int nAddr, int nByteNum, char *pData, int ivarid)
{
	int nCommIndex = GetCommIndex( nCommPort, nAddr );
	if( nCommIndex == -1 ) return ERR_CODE_ICPDAS_COM_FAULT;
	CCommAsyn *pComm = NULL;
	pComm = g_vtComStruct[nCommIndex].pComm;
	nByteNum = pComm->m_pProtocol->m_structResponse.StatusStruct.RtnByteNum;

	if( nByteNum == 0)		// 设备没有请求到数据
	{
		return ERR_CODE_ICPDAS_COM_READ_NO_DATA;
	}

	int i = 0;
	int nNum = nByteNum;

	while( i < nNum )
	{
		pData[i] = pComm->m_pProtocol->m_structResponse.StrRtnMsg[i];
		i++;
	}

	return 0;
}

int CommDataCollect(int nCommPort, 
					int nAddr, 
					BYTE Start,//起始位
					BYTE StartAddr[2],//起始地址
					int nRegNum,//读取的寄存器个数
					BYTE FuncCode[2], 
					int nDataLen,
					BYTE byWithAddrFlag,
					char chMsg[80])
{
	int nCommIndex = GetCommIndex( nCommPort, nAddr );
	if( nCommIndex == -1 ) return ERR_CODE_ICPDAS_COM_FAULT;

	CCommAsyn *pComm = NULL;
	pComm = g_vtComStruct[nCommIndex].pComm;

	return pComm->WorkMain(nAddr, Start, StartAddr, nRegNum, FuncCode, nDataLen,byWithAddrFlag, chMsg);
}

int GetCommIndex( int nCommPort, int nAddr )
{
	//BOOL bOpenFlag = FALSE;
	for( int i = 0; i < (int)g_vtComStruct.size(); i++ )
	{
		if( g_vtComStruct[i].nCommPort == nCommPort)// && g_vtComStruct[i].nAddr == nAddr)
		{
			return i;
		//	bOpenFlag = TRUE;
		}
		//else
		//{
		//	if ((g_vtComStruct[i].nAddr == nAddr) && bOpenFlag)
		//		return i;
				
		//}
	}

	return -1;
}

int ICPDAS_DLLWrCom(int nCommPort, int nAddr, char DataBuffer[80], int nDataLen)
{
	int nCommIndex = GetCommIndex( nCommPort, nAddr );
	if( nCommIndex == -1 ) return ERR_CODE_ICPDAS_COM_FAULT;

	CCommAsyn *pComm = NULL;
	pComm = g_vtComStruct[nCommIndex].pComm;
	int iResult = pComm->WriteCommand(DataBuffer, nDataLen);
	return iResult;
}