usbappdlg.cpp

This application not only demonstrates the basics of using the Microsoft Foundation classes but is

// UsbAppDlg.cpp : implementation file
//

#include "stdafx.h"
#include "UsbApp.h"
#include "UsbAppDlg.h"
#include "ezusbsys.h"
#include "devioctl.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
BULK_TRANSFER_CONTROL btc;
ULONG nBytes;
BOOLEAN bResult;
HANDLE hDevice;
CString sDriverName;
int n;

unsigned char  RcvData[300];  //接收数据存储区 
static   int   SavePointer=0; //数据存储指针 
unsigned char  TxData[300]; //发送数据存储区 
/////////////////////////////////////////////////////////////////////////////
// CUsbAppDlg dialog

CUsbAppDlg::CUsbAppDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CUsbAppDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CUsbAppDlg)
	m_ReadCode = _T("");
	m_WriteCode = _T("");
	m_ReadAddr = 0;
	m_WriteAddr = 0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CUsbAppDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CUsbAppDlg)
	DDX_Control(pDX, IDC_COMBO1, m_DriveName);
	DDX_Text(pDX, IDC_READCODET, m_ReadCode);
	DDX_Text(pDX, IDC_WRITECODET, m_WriteCode);
	DDX_Text(pDX, IDC_READADDR, m_ReadAddr);
	DDV_MinMaxInt(pDX, m_ReadAddr, 0, 1024);
	DDX_Text(pDX, IDC_WRITEADDR, m_WriteAddr);
	DDV_MinMaxInt(pDX, m_WriteAddr, 0, 1024);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CUsbAppDlg, CDialog)
	//{{AFX_MSG_MAP(CUsbAppDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_CLEAR, OnClear)
	ON_BN_CLICKED(IDC_RESET, OnReset)
	ON_BN_CLICKED(IDC_READCODE, OnReadcode)
	ON_BN_CLICKED(IDC_WRITECODE, OnWritecode)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CUsbAppDlg message handlers

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

	// 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
	CComboBox* pCBox = GetCComboBox(); // inline defined in BulkXFERDlg.h

	// get the driver name from the combobox
    n = pCBox->GetLBTextLen( pCBox->GetCurSel() );
    pCBox->GetLBText( pCBox->GetCurSel(), sDriverName.GetBuffer(n));
    sDriverName.ReleaseBuffer();
		if (OpenDriver(&hDevice,sDriverName))
	AfxMessageBox("设备已打开!");
	return TRUE;  // return TRUE  unless you set the focus to a control
}

// 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 CUsbAppDlg::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 CUsbAppDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CUsbAppDlg::OnClear() 
{
	// TODO: Add your control notification handler code here
	
}

void CUsbAppDlg::OnReset() 
{
	// TODO: Add your control notification handler code here
 /*  UpdateData(TRUE);
   int  i; 
   unsigned char  t[20],z[20];
   if(m_Code.GetLength()==4)
   {
   	for(i=0;i<m_Code.GetLength();i++) 
 	{
     t[i]=m_Code.GetAt(i);
 	{if (48<=t[i]&&57>=t[i])
 	 t[i]=t[i]-48;
 	 else if (97<=t[i]&&102>=t[i])
 	 t[i]-=87;
 	  else if (65<=t[i]&&70>=t[i])
 	 t[i]-=55;
       else 
       goto ps;
 	}
 	}
 	for(i=0;i<m_Code.GetLength();i++)
 	{  z[i]=(t[i]<<4)+t[i+1];
 	     i++;
 	}
 	for(i=0;i<m_Code.GetLength()/2;i++)
 		*(TxData+i)=z[2*i];	

     CByteArray  array; 
     char  sOutput[10]; 
 
     array.RemoveAll(); //清空数组 
     array.SetSize(4); //设置数组大小为帧长度 
     for(i=0; i<4; i++) //把待发送数据存入数组 
     array.SetAt(i,TxData[i]);                        
     if (!m_ctrlComm.GetPortOpen())  // 打开串口并发送数据 
      m_ctrlComm.SetPortOpen(TRUE); 
     m_ctrlComm.SetOutput(COleVariant(array)); 
     m_TxData=""; // 在对话框中显示发送出去的数据 
     for(i=0; i<2; i++) 
     {   sprintf(sOutput,"%02X ",TxData[i]); 
         m_TxData+=sOutput; 
     } 
     UpdateData(FALSE); //更新对话框 
 	AfxMessageBox("码字已送出！");
   }
 
   else
   {ps:   AfxMessageBox("请正确输入码字！");
       m_Code="";
       UpdateData(FALSE); //更新对话框 
   }	*/	
}

void CUsbAppDlg::OnReadcode() 
{
	char  sOutput[10]; 
	int i,n;


	// update member variables from text box controls
	UpdateData(TRUE);
    TxData[0]=0x3F;
	TxData[1]=unsigned char(m_ReadAddr>>8);
    TxData[2]=unsigned char(m_ReadAddr&0xFF);


				// read data IN from EZUSB device
				// 读的是从 0 到 127 共 128 个数据，顺序存放在 client.dat 文件中
				// 因为一次只能读 64 个，所以读了两次
		if (OpenDriver(&hDevice,sDriverName))
		{
               	btc.pipeNum = 1;
				bResult = DeviceIoControl (hDevice,
						IOCTL_EZUSB_BULK_WRITE, 
						&btc,
						sizeof (BULK_TRANSFER_CONTROL),
						TxData,
						8,
						(unsigned long *)&nBytes,
						NULL);

				if (!bResult)
					AfxMessageBox("Correct Pipe not found. Perhaps \"USB.hex\" was not downloaded to a development board.", MB_OK|MB_ICONSTOP);
				else
				AfxMessageBox("读出码字请求已发出!");
				btc.pipeNum = 0;
				bResult = DeviceIoControl (hDevice,
						IOCTL_EZUSB_BULK_READ, 
						&btc,
						sizeof (BULK_TRANSFER_CONTROL),
						RcvData,
						8,
						(unsigned long *)&nBytes,
						NULL);

				if (!bResult)
					AfxMessageBox("Correct Pipe not found. Perhaps \"USB.hex\" was not downloaded to a development board.", MB_OK|MB_ICONSTOP);
				else
				{
				  m_ReadCode=""; 
                  for(i=0; i<2; i++) 
				  { sprintf(sOutput,"%02X",RcvData[i]); 
                     m_ReadCode+=sOutput;
				  }
			      UpdateData(FALSE);
	              AfxMessageBox("码字已读出！");	  

				}
	}
}
void CUsbAppDlg::OnWritecode() 
{	// TODO: Add your control notification handler code here


	// update member variables from text box controls
	UpdateData(TRUE);
	//*************************************/
  /*  if(m_WriteAddr.GetLength()>4) 
      goto ps;
      else
	  { 	   for(i=0;i<m_WriteAddr.GetLength();i++)
	  {        Addrt[i]=m_WriteAddr.GetAt(i);
                  if (48<=t[i]&&57>=t[i])
                     Addrt[i]=Addrt[i]-48;
		              else 
			          goto ps;
	  }
	            	for(i=0;i<m_WriteAddr.GetLength();i++)
					{  Addrz[i]=(Addrt[i]<<4)+Addrt[i+1];
 	                        i++;
					}
	  }*/


	TxData[0]=unsigned char(m_WriteAddr>>8);
    TxData[1]=unsigned char(m_WriteAddr&0xFF);
  unsigned char  t[20],z[20];
   if(m_WriteCode.GetLength()==4)
   {
   	for(int i=0;i<m_WriteCode.GetLength();i++) 
 	{
     t[i]=m_WriteCode.GetAt(i);
 	{if (48<=t[i]&&57>=t[i])
 	 t[i]=t[i]-48;
 	 else if (97<=t[i]&&102>=t[i])
 	 t[i]-=87;
 	  else if (65<=t[i]&&70>=t[i])
 	 t[i]-=55;
       else 
       goto ps;
 	}
 	}
 	for(i=0;i<m_WriteCode.GetLength();i++)
 	{  z[i]=(t[i]<<4)+t[i+1];
 	     i++;
 	}
 	for(i=0;i<m_WriteCode.GetLength()/2;i++)
 		*(TxData+i+2)=z[2*i];	

//	if (OpenDriver(&hDevice,sDriverName))
//		{

			// we use pipes 1 and 0 because that's what "ep-pair.hex" sets up

			
			btc.pipeNum = 1;

			// write data OUT to EZUSB device
			bResult = DeviceIoControl (hDevice,
						IOCTL_EZUSB_BULK_WRITE, 
						&btc,
						sizeof (BULK_TRANSFER_CONTROL),
						TxData,
						8,
						(unsigned long *)&nBytes,
						NULL);

			if (!bResult)
				AfxMessageBox("Correct Pipe1 not found. Perhaps \"USB.hex\" was not downloaded to a development board.", MB_OK|MB_ICONSTOP);
			else
			{
				// no rabbits up our sleeve
				for (i = 0; i < 8; i++)
					TxData[i] = 0;
				}
  
  ps:   AfxMessageBox("请正确输入码字！");
      m_WriteCode="";
      UpdateData(FALSE); //更新对话框 
  
}
}

void CUsbAppDlg::SetupDriverComboBox()
{
CString sDriverName, sCompleteName;

char num[3] = {0,0,0};

//HANDLE hDriver;

	CComboBox* pCBox = GetCComboBox(); // inline defined in BulkXFERDlg.h

	pCBox->ResetContent ();

	// Assume 32 EZ-USB boards are attached to the PC.
	// Try to open each driver.  If successful, add driver name to combobox

	for (int i = 0; i < MAX_USB_DEV_NUMBER; i++)
	{
		_itoa( i, num, 10 );
   
		sDriverName = (CString)"Ezusb-" + num;

		if (OpenDriver(&hDriver, sDriverName))
			pCBox->AddString ((LPCTSTR) sDriverName);
		else
		{
			if (i==0)
			{
				AfxMessageBox("No EZ-USB device drivers were found.  Perhaps no device is connected", MB_OK|MB_ICONSTOP);
				exit(0);
			}
		}

	}

	pCBox->SetCurSel(0);
}

BOOLEAN CUsbAppDlg::OpenDriver(HANDLE *phDriver, CString devname)
{
	SECURITY_ATTRIBUTES security;

	security.nLength = sizeof(security);
	security.lpSecurityDescriptor = NULL;
	security.bInheritHandle = false;

    CString completeDeviceName = (CString)"\\\\.\\" + devname;

    *phDriver = CreateFile(   completeDeviceName,
		                            GENERIC_WRITE,
		                            FILE_SHARE_WRITE,
		                            &security,
		                            OPEN_EXISTING,
		                            0,
		                            NULL);

    return (*phDriver != INVALID_HANDLE_VALUE);
}