iocarddlg.cpp

本实例实现8255控制卡的输入输出的控制. 是学习IO控制卡最好的实例,

// IOCardDlg.cpp : implementation file
//

#include "stdafx.h"
#include "IOCard.h"
#include "IOCardDlg.h"
#include "WinIo.h"
#include "dos.h"
#include "stdio.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CIOCardDlg dialog

CIOCardDlg::CIOCardDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CIOCardDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CIOCardDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CIOCardDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CIOCardDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CIOCardDlg, CDialog)
	//{{AFX_MSG_MAP(CIOCardDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CIOCardDlg message handlers

BOOL CIOCardDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CIOCardDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CIOCardDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CIOCardDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CIOCardDlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
	DWORD dwPortVal;
	int iPortVal=-1;
	DWORD dwMemVal;
	HANDLE hPhysicalMemory;
	PBYTE pbLinAddr;
	BOOL bResult = InitializeWinIo(); //初始化WinIo控制
	if(bResult)
	{
		//读写并行口的
		GetPortVal(0x378, &dwPortVal,1); 
		iPortVal = (int)dwPortVal;
		SetPortVal(0x378, 10, 4);
		GetPortVal(0x378, &dwPortVal,1);
		iPortVal = (int)dwPortVal;

		DWORD dwtempval;
		DWORD dwtempval2;
		unsigned long tempval=0;
	
		//240 port
		int Address1 = 0x240;
		int Address2 = 0x340;
		int ReadVal =-1;
		int ReadVal2 =-1;
		BOOL ret;



		//有时候这里初始化不成功导致下面做Port的读写失效。
		//好像要多试几下，或都运行到此步的时候稍停5秒。
		ret = SetPortVal(Address1+3,0x80,1); 
//		ret = SetPortVal(Address2+3,0x80,1);
//		ret = SetPortVal(Address1,0x0,1);
		
		//240 port
		//1， 有效围从0~255；但在设定为128时，读到的为-128，这样返相相减，
		//2， 另设定超出这个范围时返回的值又从0开始，比如设定为256，读到的将是0，
		//设定为257，读到的将是1；以此类推。
		//3，0x240与0x241 可独立读写。
		for(int b=0; b<256; b++)
		{
			ret = SetPortVal(0x240,b,1);
			ret = GetPortVal(0x240, &dwtempval,1);
			ReadVal = (int)dwtempval; //very imporvement
			ret = SetPortVal(0x241,b+10,1);
			ret = GetPortVal(0x241, &dwtempval2,1);
			ReadVal2 = (int)dwtempval2; //very imporvement
			Sleep(500);
		}
		//340 port
		ret = SetPortVal(Address2+3,0x80,1);
		for(int i=0; i<20; i++)
		{
			SetPortVal(0x340,i,1);
			GetPortVal(0x340, &dwtempval,1);
			ReadVal = (int)dwtempval;
			Sleep(800);
		}
		
		pbLinAddr = MapPhysToLin((PBYTE)0xA0000,65536,&hPhysicalMemory);		
		if(pbLinAddr)
		{
			*pbLinAddr = 10;
			UnmapPhysicalMemory(hPhysicalMemory, pbLinAddr);			
			GetPhysLong((PBYTE)0xA0000, &dwMemVal);
			SetPhysLong((PBYTE)0xA0000, 10);			
		}
		else
		{
			AfxMessageBox("Error during initialization of WinIo.\n");
			exit(1);
		}	
	}
	ShutdownWinIo();  //关闭WinIo控制。
}