test3dlg.cpp

实现对现有USB主控制器

// test3Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "test3.h"
#include "test3Dlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#define NUM_HCS_TO_CHECK 10//指定查找控制器的上限数

/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CTest3Dlg dialog

CTest3Dlg::CTest3Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CTest3Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CTest3Dlg)
	m_showMessage = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CTest3Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CTest3Dlg)
	DDX_Text(pDX, IDC_EDIT1, m_showMessage);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CTest3Dlg, CDialog)
	//{{AFX_MSG_MAP(CTest3Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTest3Dlg message handlers

BOOL CTest3Dlg::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 CTest3Dlg::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 CTest3Dlg::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 CTest3Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CTest3Dlg::ShowMessage(CString str)/////此调用在文本框中显示设备数据
{
	m_showMessage += str;
	SetDlgItemText(IDC_EDIT1,m_showMessage);
}
void CTest3Dlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
	m_showMessage.Empty();//每次显示时清空上次数据
	CString str;
	str="查找所有USB设备：";
	ShowMessage(str);
	NumUsbAll();//查找调用函数
}
void CTest3Dlg::NumUsbAll()//查找内容
{

	CString strShow;
	char        HCName[16];
    HANDLE      hHCDev;
    PCHAR       rootHubName;
    PCHAR       leafName;
//	ULONG       index;
	int         index;
    BOOL        success;

    PUSB_NODE_CONNECTION_INFORMATION connectionInfo;
	HANDLE hHubDevice;

	   for (int HCNum = 0; HCNum < NUM_HCS_TO_CHECK; HCNum++)
    {
        wsprintf(HCName, "\\\\.\\HCD%d", HCNum);//计算机上的USB主控制器以HCD1，HCD2等命名
		//打开控制器
        hHCDev = CreateFile(HCName,
                            GENERIC_WRITE,
                            FILE_SHARE_WRITE,
                            NULL,
                            OPEN_EXISTING,
                            0,
                            NULL);
		if (hHCDev != INVALID_HANDLE_VALUE)//成功打开
        {
			strShow.Format("\r\n找到USB控制器:%d\r\n",HCNum+1);
			ShowMessage(strShow);
		}
		else
			break;
		  PCHAR driverKeyName, deviceDesc;
          driverKeyName = GetHCDDriverKeyName(hHCDev);//调用GetHCDDriverKeyName函数
		  if(driverKeyName)
		  {	 		//想获得此设备的字符名，但不成功!!有高招请告诉我!
//			  deviceDesc = DriverNameToDeviceDesc(driverKeyName);
		  }
		  else
		  {
			 strShow.Format("错误！\r\n");
			 ShowMessage(strShow);
			  goto end;	  
		  }
		strShow.Format("USB控制器:%s\r\n",driverKeyName);
		ShowMessage(strShow);
        leafName = HCName + sizeof("\\\\.\\") - sizeof("");///////???
		strShow.Format("USB控制器名称:%s\r\n",leafName);
		ShowMessage(strShow);
		ULONG           nBytes;

        rootHubName =(char*) GetRootHubName(hHCDev);//调用GetRootHubName函数
		if(rootHubName==NULL)
		 {
			 strShow.Format("错误！\r\n");
			 ShowMessage(strShow);
			  goto end;
		  }
		strShow.Format("USB Hub名称:\r\n%s\r\n",rootHubName);
		ShowMessage(strShow);

		 PUSB_NODE_INFORMATION HubInfo;////////////////////////////???
		 HubInfo = (PUSB_NODE_INFORMATION)malloc(sizeof(USB_NODE_INFORMATION));
		 PCHAR deviceName;
		 deviceName = (PCHAR)malloc(strlen(rootHubName) + sizeof("\\\\.\\"));
         if (rootHubName != NULL)
         {
			strcpy(deviceName, "\\\\.\\");
			strcpy(deviceName + sizeof("\\\\.\\") - 1, rootHubName);
			//打开连接设备
			hHubDevice = CreateFile(deviceName,
                            GENERIC_WRITE,
                            FILE_SHARE_WRITE,
                            NULL,
                            OPEN_EXISTING,
                            0,
                            NULL);
			free(deviceName);
			if (hHubDevice == INVALID_HANDLE_VALUE)//打开失败
			{
				 strShow.Format("错误！\r\n");
				 ShowMessage(strShow);			
				goto end;
			}
			//得到控制器的驱动程序名，以及与它连接的HUB的名称
			success = DeviceIoControl(hHubDevice,
                              IOCTL_USB_GET_NODE_INFORMATION,
                              HubInfo,
                              sizeof(USB_NODE_INFORMATION),
                              HubInfo,
                              sizeof(USB_NODE_INFORMATION),
                              &nBytes,
                              NULL);
			if (!success)
			{
				 strShow.Format("错误！\r\n");
				 ShowMessage(strShow);
				goto end;
			}

		 }
			
		 int port;
		 port=HubInfo->u.HubInformation.HubDescriptor.bNumberOfPorts;//控制器下的端口数
		 for (index=1; index <= port; index++)
		 {
			 ULONG nBytes;
			 nBytes = sizeof(USB_NODE_CONNECTION_INFORMATION) +
                sizeof(USB_PIPE_INFO) * 30;
			 connectionInfo = (PUSB_NODE_CONNECTION_INFORMATION)malloc(nBytes);///???
			 if (connectionInfo == NULL)
			 {
				  strShow.Format("错误！\r\n");
				 ShowMessage(strShow);
				 goto end;
			 }
			 connectionInfo->ConnectionIndex = index;
			 ///获得设备更详细的资料
			 success = DeviceIoControl(hHubDevice,
                                  IOCTL_USB_GET_NODE_CONNECTION_INFORMATION,
                                  connectionInfo,
                                  nBytes,
                                  connectionInfo,
                                  nBytes,
                                  &nBytes,
                                  NULL);
			 if (!success)//信息获得失败
			 {
				 free(connectionInfo);
				 strShow.Format("错误！\r\n");
				 ShowMessage(strShow);
				 goto end;
			 }
			 if(connectionInfo)
		      if (connectionInfo->ConnectionStatus == DeviceConnected)
			  {
				strShow.Format("第%d端口有USB设备连接\r\n",index);//信息符合
			  }
			  else
			  {
				 strShow.Format("第%d端口没有USB设备联接\r\n",index);
				
			  }
			  ShowMessage(strShow);
			   if (connectionInfo->DeviceIsHub)
			   {
				   strShow="HUB";
				   ShowMessage(strShow);
			   }
			   deviceDesc = NULL;
			   if (connectionInfo->ConnectionStatus != NoDeviceConnected)
			   {
				   driverKeyName = GetDriverKeyName(hHubDevice,index);//调用GetRootHubName函数
				   if (driverKeyName)
				   {
					   strShow.Format("状态：已连接！\r\n连接设备名:%s\r\n",driverKeyName);
					   ShowMessage(strShow);
					   free(driverKeyName);
				   }
			   }

	      if (connectionInfo->ConnectionStatus == DeviceConnected)
        {
			ShowCenctInfo(connectionInfo);///调用ShowCenctInfo函数
        }
		 }
end:; 
             }
	 			CloseHandle(hHubDevice);
				CloseHandle(hHCDev);
}



PCHAR CTest3Dlg::GetHCDDriverKeyName(HANDLE HCD)///////??取得设备名
{
   BOOL                    success;
    ULONG                   nBytes;
    USB_HCD_DRIVERKEY_NAME  driverKeyName;
    PUSB_HCD_DRIVERKEY_NAME driverKeyNameW;
    PCHAR                   driverKeyNameA;

    driverKeyNameW = NULL;
    driverKeyNameA = NULL;

    success = DeviceIoControl(HCD,
                              IOCTL_GET_HCD_DRIVERKEY_NAME,
                              &driverKeyName,
                              sizeof(driverKeyName),
                              &driverKeyName,
                              sizeof(driverKeyName),
                              &nBytes,
                              NULL);

    if (!success)
	{
        goto GetHCDDriverKeyNameError;
    }

    nBytes = driverKeyName.ActualLength;

    if (nBytes <= sizeof(driverKeyName))
    {
        goto GetHCDDriverKeyNameError;
    }

    driverKeyNameW =(PUSB_HCD_DRIVERKEY_NAME) malloc(nBytes);

    if (driverKeyNameW == NULL)
    {
        goto GetHCDDriverKeyNameError;
    }

    success = DeviceIoControl(HCD,
                              IOCTL_GET_HCD_DRIVERKEY_NAME,
                              driverKeyNameW,
                              nBytes,
                              driverKeyNameW,
                              nBytes,
                              &nBytes,
                              NULL);

    if (!success)
    {
        goto GetHCDDriverKeyNameError;
    }

    driverKeyNameA = WideStrToMultiStr(driverKeyNameW->DriverKeyName);
    free(driverKeyNameW);

    return driverKeyNameA;


GetHCDDriverKeyNameError:
    if (driverKeyNameW != NULL)