📄 mfc_usbviewdlg.cpp
字号:
break;
}
cr = CM_Get_Parent(&devInstNext, devInst, 0);
if (cr == CR_SUCCESS)
{
devInst = devInstNext;
}
else
{
walkDone = 1;
break;
}
}
}
return NULL;
}
PCHAR CMFC_USBViewDlg::GetRootHubName(HANDLE HostController)
{
BOOL success;
ULONG nBytes;
USB_ROOT_HUB_NAME rootHubName;
PUSB_ROOT_HUB_NAME rootHubNameW;
PCHAR rootHubNameA;
rootHubNameW = NULL;
rootHubNameA = NULL;
// 把根HUB附件的名字长度给主机控制器
success = DeviceIoControl(HostController,IOCTL_USB_GET_ROOT_HUB_NAME,0,0,
&rootHubName,sizeof(rootHubName),&nBytes,NULL);
if (!success)
{
OOPS();
goto GetRootHubNameError;
}
// 分配空间非根HUB名
nBytes = rootHubName.ActualLength;
rootHubNameW = (_USB_ROOT_HUB_NAME *)ALLOC(nBytes);
if (rootHubNameW == NULL)
{
OOPS();
goto GetRootHubNameError;
}
// 把根HUB附件的名字给主机控制器
success = DeviceIoControl(HostController,IOCTL_USB_GET_ROOT_HUB_NAME,NULL,0,
rootHubNameW,nBytes,&nBytes,NULL);
if (!success)
{
OOPS();
goto GetRootHubNameError;
}
// 转换根HUB名
rootHubNameA = WideStrToMultiStr(rootHubNameW->RootHubName);
// 全部完成, 自由地那不隐蔽的根HUB命名而且归还那转换根HUB名字
FREE(rootHubNameW);
return rootHubNameA;
GetRootHubNameError:
// 有一个错误，被分派的自由任何事
if (rootHubNameW != NULL)
{
FREE(rootHubNameW);
rootHubNameW = NULL;
}
return NULL;
}
void CMFC_USBViewDlg::EnumerateHub(PCHAR HubName,
PUSB_NODE_CONNECTION_INFORMATION ConnectionInfo,
PUSB_DESCRIPTOR_REQUEST ConfigDesc,
PSTRING_DESCRIPTOR_NODE StringDescs,
PCHAR DeviceDesc)
{
HANDLE hHubDevice;
//HTREEITEM hItem;
PCHAR deviceName;
BOOL success;
ULONG nBytes;
PUSBDEVICEINFO info;
CHAR leafName[512]; // XXXXX 这到底有多么大?
// 对不分派的州设定本地人初值，如此错误清除常式只试到被成功地分派的清除事物
info = NULL;
hHubDevice = INVALID_HANDLE_VALUE;
// 为USBDEVICEINFO结构支持HUB信息分派一些空间,hub名,
// 而且连接信息指针.GPTR为零是我们设定结构初值.
info = (PUSBDEVICEINFO) ALLOC(sizeof(USBDEVICEINFO));
if (info == NULL)
{
OOPS();
goto EnumerateHubError;
}
// 维持HUB名字，连接信息和配置描述符指示器
info->HubName = HubName;
info->ConnectionInfo = ConnectionInfo;
info->ConfigDesc = ConfigDesc;
info->StringDescs = StringDescs;
// 为这一个HUB分派一些USB_NODE_INFORMATION结构的空间,
info->HubInfo = (PUSB_NODE_INFORMATION)ALLOC(sizeof(USB_NODE_INFORMATION));
if (info->HubInfo == NULL)
{
OOPS();
goto EnumerateHubError;
}
// 为完整的HUB设备名分配一个临时缓冲区.
deviceName = (PCHAR)ALLOC(strlen(HubName) + sizeof("\\\\.\\"));
if (deviceName == NULL)
{
OOPS();
goto EnumerateHubError;
}
// 创建这完整的HUB设备名
strcpy(deviceName, "\\\\.\\");
strcpy(deviceName + sizeof("\\\\.\\") - 1, info->HubName);
//deviceName = "\\\\.\\USB#ROOT_HUB#4&173bc1af&0#{f18a0e88-c30c-11d0-8815-00a0c906bed8}";
// 设法打开这HUB设备
hHubDevice = CreateFile(deviceName,GENERIC_WRITE,FILE_SHARE_WRITE,NULL,OPEN_EXISTING,0,NULL);
// 完成这完整的HUB设备名临时缓冲区
//FREE(deviceName);
if (hHubDevice == INVALID_HANDLE_VALUE)
{
OOPS();
goto EnumerateHubError;
}
// 现在为这一个HUB为 USB_NODE_INFORMATION 结构体 USBHUB.
// 这将会告诉我们下游的端口数字列举,在其他的事物之中.
success = DeviceIoControl(hHubDevice,IOCTL_USB_GET_NODE_INFORMATION,info->HubInfo,sizeof(USB_NODE_INFORMATION),
info->HubInfo,sizeof(USB_NODE_INFORMATION),&nBytes,NULL);
if (!success)
{
OOPS();
goto EnumerateHubError;
}
// 从这端口数建立页名和设备描述符
if (ConnectionInfo)
{
wsprintf(leafName, "[Port%d] ", ConnectionInfo->ConnectionIndex);
strcat(leafName, ConnectionStatuses[ConnectionInfo->ConnectionStatus]);
strcat(leafName, " : ");
}
else
{
leafName[0] = 0;
}
if (DeviceDesc)
{
strcat(leafName, DeviceDesc);
}
else
{
strcat(leafName, info->HubName);
}
// 现在用 PUSBDEVICEINFO 指针信息把一个项目加入 TreeView 如 LPARAM 叁考价值包含我们知道HUB的每件事物.
//hItem = AddLeaf(hTreeParent,(LPARAM)info,leafName);
//if (hItem == NULL)
//{
// OOPS();
// goto EnumerateHubError;
//}
// 现在递归地 enumrate 这一个HUB的端口.
EnumerateHubPorts(hHubDevice,info->HubInfo->u.HubInformation.HubDescriptor.bNumberOfPorts);
CloseHandle(hHubDevice);
return;
EnumerateHubError:
// 清除分配得到任何的东西
if (hHubDevice != INVALID_HANDLE_VALUE)
{
CloseHandle(hHubDevice);
hHubDevice = INVALID_HANDLE_VALUE;
}
if (info != NULL)
{
if (info->HubName != NULL)
{
FREE(info->HubName);
info->HubName = NULL;
}
if (info->HubInfo != NULL)
{
FREE(info->HubInfo);
info->HubInfo;
}
FREE(info);
info = NULL;
}
if (ConnectionInfo)
{
FREE(ConnectionInfo);
}
if (ConfigDesc)
{
FREE(ConfigDesc);
}
if (StringDescs != NULL)
{
PSTRING_DESCRIPTOR_NODE Next;
do {
Next = StringDescs->Next;
FREE(StringDescs);
StringDescs = Next;
} while (StringDescs != NULL);
}
}
void CMFC_USBViewDlg::EnumerateHubPorts(HANDLE hHubDevice, ULONG NumPorts)
{
//HTREEITEM hItem;
ULONG index;
BOOL success;
PUSB_NODE_CONNECTION_INFORMATION connectionInfo;
PUSB_DESCRIPTOR_REQUEST configDesc;
PSTRING_DESCRIPTOR_NODE stringDescs;
PUSBDEVICEINFO info;
PCHAR driverKeyName;
PCHAR deviceDesc;
CHAR leafName[512]; // XXXXX 这到底有多大?
//HTREEITEM mSubRoot1,mSubRoot2,mSubRoot3,mSubRoot4;
// 循环遍及所有的HUB端口
// 端口是基于1，非0建立
for (index=1; index <= NumPorts; index++)
{
ULONG nBytes;
// 分配空间为这一个端口支撑连接信息.
// 即于现在,分派它大的充足为 30个管支撑信息.
// 端点数是 0-15. 端点 0 号是标准不被在结构描述符中明确地列出的控制端点.
// 可能有一在端点1号-15的端点和外面的端点中因此可能有每装置结构30端点的最大值
// 应该在一些点动态地或许按规定尺寸制作这.
nBytes = sizeof(USB_NODE_CONNECTION_INFORMATION) + sizeof(USB_PIPE_INFO) * 30;
connectionInfo = (PUSB_NODE_CONNECTION_INFORMATION)ALLOC(nBytes);
if (connectionInfo == NULL)
{
OOPS();
break;
}
// 现在为这一个端口为 USB_NODE_CONNECTION_INFORMATION 结构 USBHUB.如果一个装置被插上到这一个端口，
//这将会告诉我们,在其他的事物之中.
connectionInfo->ConnectionIndex = index;
success = DeviceIoControl(hHubDevice,IOCTL_USB_GET_NODE_CONNECTION_INFORMATION,connectionInfo,
nBytes,connectionInfo,nBytes,&nBytes,NULL);
if (!success)
{
FREE(connectionInfo);
continue;
}
// 更新连接的设备数
if (connectionInfo->ConnectionStatus == DeviceConnected)
{
m_TotalDevicesConnected++;
}
if (connectionInfo->DeviceIsHub)
{
m_TotalHubs++;
}
// 如果那儿有一个设备连接，获得这设备描述符
deviceDesc = NULL;
if (connectionInfo->ConnectionStatus != NoDeviceConnected)
{
driverKeyName = GetDriverKeyName(hHubDevice, index);
if (driverKeyName)
{
deviceDesc = DriverNameToDeviceDesc(driverKeyName);
FREE(driverKeyName);
}
}
// 如果那儿有一个设备连接到端口，设法取回来自设备的结构体描述符.
if (m_bDoConfigDesc && connectionInfo->ConnectionStatus == DeviceConnected)
{
configDesc = GetConfigDescriptor(hHubDevice,index,0);
}
else
{
configDesc = NULL;
}
if (configDesc != NULL && AreThereStringDescriptors(&connectionInfo->DeviceDescriptor,(PUSB_CONFIGURATION_DESCRIPTOR)(configDesc+1)))
{
stringDescs = GetAllStringDescriptors(hHubDevice,index,&connectionInfo->DeviceDescriptor,(PUSB_CONFIGURATION_DESCRIPTOR)(configDesc+1));
}
else
{
stringDescs = NULL;
}
// 如果这设备连接到的端口是外部HUB，将获得外部HUB名并且递归的列举它
if (connectionInfo->DeviceIsHub)
{
PCHAR extHubName;
extHubName = GetExternalHubName(hHubDevice,index);
if (extHubName != NULL)
{
EnumerateHub(extHubName,connectionInfo,configDesc,stringDescs,deviceDesc);
// 在到下一个端口之上
continue;
}
}
// 为USBDEVICEINFO结构支撑HUB信息分派一些空间,hub名,与连接信息指针.GPTR 零为我们设定结构初值.
info = (PUSBDEVICEINFO) ALLOC(sizeof(USBDEVICEINFO));
if (info == NULL)
{
OOPS();
if (configDesc != NULL)
{
FREE(configDesc);
}
FREE(connectionInfo);
break;
}
info->ConnectionInfo = connectionInfo;
info->ConfigDesc = configDesc;
info->StringDescs = stringDescs;
wsprintf(leafName, "[Port%d] ", index);
strcat(leafName, ConnectionStatuses[connectionInfo->ConnectionStatus]);
if (deviceDesc)
{
strcat(leafName, " : ");
strcat(leafName, deviceDesc);
m_strUsbInfo.Format("%s",leafName);
m_MyList.AddString(m_strUsbInfo);
DisplayConnectionInfo(info->ConnectionInfo,info->StringDescs);
}
m_strUsbInfo.Format("%s",leafName);
/*switch(m_iNodeValue)
{
case 1:
mSubRoot1=m_MyTree.InsertItem(m_strUsbInfo,0,1,subRoot1,TVI_LAST);
break;
case 2:
mSubRoot2=m_MyTree.InsertItem(m_strUsbInfo,0,1,subRoot2,TVI_LAST);
break;
case 3:
mSubRoot3=m_MyTree.InsertItem(m_strUsbInfo,0,1,subRoot3,TVI_LAST);
break;
case 4:
mSubRoot4=m_MyTree.InsertItem(m_strUsbInfo,0,1,subRoot4,TVI_LAST);
break;
}*/
//hItem = AddLeaf(hTreeParent,(LPARAM)info,leafName);
}
}
PCHAR CMFC_USBViewDlg::GetDriverKeyName(HANDLE Hub, ULONG ConnectionIndex)
{
BOOL success;
ULONG nBytes;
USB_NODE_CONNECTION_DRIVERKEY_NAME driverKeyName;
PUSB_NODE_CONNECTION_DRIVERKEY_NAME driverKeyNameW;
PCHAR driverKeyNameA;
driverKeyNameW = NULL;
driverKeyNameA = NULL;
// 获得被附上到被叙述的端口设备的传动键的名字长度.
driverKeyName.ConnectionIndex = ConnectionIndex;
success = DeviceIoControl(Hub,IOCTL_USB_GET_NODE_CONNECTION_DRIVERKEY_NAME,&driverKeyName,
sizeof(driverKeyName),&driverKeyName,sizeof(driverKeyName),&nBytes,NULL);
if (!success)
{
OOPS();
goto GetDriverKeyNameError;
}
// 分配空间给传动键名
nBytes = driverKeyName.ActualLength;
if (nBytes <= sizeof(driverKeyName))
{
OOPS();
goto GetDriverKeyNameError;
}
driverKeyNameW = (_USB_NODE_CONNECTION_DRIVERKEY_NAME *)ALLOC(nBytes);
if (driverKeyNameW == NULL)
{
OOPS();
goto GetDriverKeyNameError;
}
// 获得被附上到被叙述的端口设备的传动键的名字
driverKeyNameW->ConnectionIndex = ConnectionIndex;
success = DeviceIoControl(Hub,IOCTL_USB_GET_NODE_CONNECTION_DRIVERKEY_NAME,
driverKeyNameW,nBytes,driverKeyNameW,nBytes,&nBytes,NULL);
if (!success)
{
OOPS();
goto GetDriverKeyNameError;
}
// 转换传动键名
driverKeyNameA = WideStrToMultiStr(driverKeyNameW->DriverKeyName);
// 全部完成了, 释放被不隐蔽的传动键名字并且归还被转换的传动键名字
FREE(driverKeyNameW);
return driverKeyNameA;
GetDriverKeyNameError:
// 有一个错误，被分派的自由任何事
if (driverKeyNameW != NULL)
{
FREE(driverKeyNameW);
driverKeyNameW = NULL;
}
return NULL;
}
PUSB_DESCRIPTOR_REQUEST CMFC_USBViewDlg::GetConfigDescriptor(HANDLE hHubDevice, ULONG ConnectionIndex, UCHAR DescriptorIndex)
{
BOOL success;
ULONG nBytes;
ULONG nBytesReturned;
UCHAR configDescReqBuf[sizeof(USB_DESCRIPTOR_REQUEST) + sizeof(USB_CONFIGURATION_DESCRIPTOR)];
PUSB_DESCRIPTOR_REQUEST configDescReq;
PUSB_CONFIGURATION_DESCRIPTOR configDesc;
// 请求结构描述符第一次使用我们的局部缓冲区, 哪一为外形记述件够确实大它本身.
nBytes = sizeof(configDescReqBuf);
configDescReq = (PUSB_DESCRIPTOR_REQUEST)configDescReqBuf;
configDesc = (PUSB_CONFIGURATION_DESCRIPTOR)(configDescReq+1);
// 将整个结构初始化为0
memset(configDescReq, 0, nBytes);
// 指出端口从哪一描述符将会被请求
configDescReq->ConnectionIndex = ConnectionIndex;
// SBHUB 使用 URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE 处理这 IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION 请求.
// USBD 将会自动地设定这些领域初值:
// bmRequest = 0x80
// bRequest = 0x06
// 我们必须初始化这些:
// wValue = 描述符类型 (高) 与描述符索引 (低字节)
// wIndex = 0 (或者语言ID字符串描述符)
// wLength = 描述符缓冲区的长度
configDescReq->SetupPacket.wValue = (USB_CONFIGURATION_DESCRIPTOR_TYPE << 8) | DescriptorIndex;
configDescReq->SetupPacket.wLength = (USHORT)(nBytes - sizeof(USB_DESCRIPTOR_REQUEST));
// 现在发出获得描述符请求
success = DeviceIoControl(hHubDevice,IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION,configDescReq,
nBytes,configDescReq,nBytes,&nBytesReturned,NULL);
if (!success)
{
OOPS();
return NULL;
}
if (nBytes != nBytesReturned)
{
OOPS();
return NULL;
}
if (configDesc->wTotalLength < sizeof(USB_CONFIGURATION_DESCRIPTOR))
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