[janderwald] 51387: [USBEHCI_NEW] - Add interface function GetHubControllerSymbolicLink - Implement IOCTL_USB_GET_ROOT_HUB_NAME for usbview
17 Apr
2011
17 Apr
'11
10:38 p.m.
Author: janderwald
Date: Sun Apr 17 22:38:32 2011
New Revision: 51387
URL: http://svn.reactos.org/svn/reactos?rev=51387&view=rev
Log:
[USBEHCI_NEW]
- Add interface function GetHubControllerSymbolicLink
- Implement IOCTL_USB_GET_ROOT_HUB_NAME for usbview
Modified:
branches/usb-bringup/drivers/usb/usbehci_new/hcd_controller.cpp
branches/usb-bringup/drivers/usb/usbehci_new/hub_controller.cpp
branches/usb-bringup/drivers/usb/usbehci_new/interfaces.h
Modified: branches/usb-bringup/drivers/usb/usbehci_new/hcd_controller.cpp
URL:
http://svn.reactos.org/svn/reactos/branches/usb-bringup/drivers/usb/usbehci…
==============================================================================
--- branches/usb-bringup/drivers/usb/usbehci_new/hcd_controller.cpp [iso-8859-1]
(original)
+++ branches/usb-bringup/drivers/usb/usbehci_new/hcd_controller.cpp [iso-8859-1] Sun Apr
17 22:38:32 2011
@@ -230,87 +230,123 @@
//
DeviceExtension = (PCOMMON_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
-
- DPRINT1("HandleDeviceControl>Type: FDO %u IoCtl %x InputBufferLength %lu
OutputBufferLength %lu\n",
- DeviceExtension->IsFDO,
+ //
+ // sanity check
+ //
+ PC_ASSERT(DeviceExtension->IsFDO);
+
+ DPRINT1("HandleDeviceControl>Type: IoCtl %x InputBufferLength %lu
OutputBufferLength %lu\n",
IoStack->Parameters.DeviceIoControl.IoControlCode,
IoStack->Parameters.DeviceIoControl.InputBufferLength,
IoStack->Parameters.DeviceIoControl.OutputBufferLength);
//
- // get device type
- //
- if (DeviceExtension->IsFDO)
- {
- //
- // perform ioctl for FDO
- //
- if (IoStack->Parameters.DeviceIoControl.IoControlCode ==
IOCTL_GET_HCD_DRIVERKEY_NAME)
- {
- //
- // check if sizee is at least >= USB_HCD_DRIVERKEY_NAME
- //
- if(IoStack->Parameters.DeviceIoControl.OutputBufferLength >=
sizeof(USB_HCD_DRIVERKEY_NAME))
- {
- //
- // get device property size
- //
- Status = IoGetDeviceProperty(m_PhysicalDeviceObject,
DevicePropertyDriverKeyName, 0, NULL, &ResultLength);
-
- DriverKey = (PUSB_HCD_DRIVERKEY_NAME)Irp->AssociatedIrp.SystemBuffer;
-
- //
- // check result
- //
- if (Status == STATUS_BUFFER_TOO_SMALL)
+ // perform ioctl for FDO
+ //
+ if (IoStack->Parameters.DeviceIoControl.IoControlCode ==
IOCTL_GET_HCD_DRIVERKEY_NAME)
+ {
+ //
+ // check if sizee is at least >= USB_HCD_DRIVERKEY_NAME
+ //
+ if(IoStack->Parameters.DeviceIoControl.OutputBufferLength >=
sizeof(USB_HCD_DRIVERKEY_NAME))
+ {
+ //
+ // get device property size
+ //
+ Status = IoGetDeviceProperty(m_PhysicalDeviceObject,
DevicePropertyDriverKeyName, 0, NULL, &ResultLength);
+
+ //
+ // get input buffer
+ //
+ DriverKey = (PUSB_HCD_DRIVERKEY_NAME)Irp->AssociatedIrp.SystemBuffer;
+
+ //
+ // check result
+ //
+ if (Status == STATUS_BUFFER_TOO_SMALL)
+ {
+ //
+ // does the caller provide enough buffer space
+ //
+ if (IoStack->Parameters.DeviceIoControl.OutputBufferLength >=
ResultLength)
{
//
- // does the caller provide enough buffer space
- //
- if (IoStack->Parameters.DeviceIoControl.OutputBufferLength >=
ResultLength)
+ // it does
+ //
+ Status = IoGetDeviceProperty(m_PhysicalDeviceObject,
DevicePropertyDriverKeyName, IoStack->Parameters.DeviceIoControl.OutputBufferLength -
sizeof(ULONG), DriverKey->DriverKeyName, &ResultLength);
+
+ if (NT_SUCCESS(Status))
{
//
- // it does
+ // informal debug print
//
- Status = IoGetDeviceProperty(m_PhysicalDeviceObject,
DevicePropertyDriverKeyName, IoStack->Parameters.DeviceIoControl.OutputBufferLength -
sizeof(ULONG), DriverKey->DriverKeyName, &ResultLength);
-
- if (NT_SUCCESS(Status))
- {
- //
- // informal debug print
- //
- DPRINT1("Result %S\n",
DriverKey->DriverKeyName);
- }
+ DPRINT1("Result %S\n", DriverKey->DriverKeyName);
}
-
- //
- // store result
- //
- DriverKey->ActualLength = ResultLength +
FIELD_OFFSET(USB_HCD_DRIVERKEY_NAME, DriverKeyName) + sizeof(WCHAR);
- Irp->IoStatus.Information =
IoStack->Parameters.DeviceIoControl.OutputBufferLength;
- Status = STATUS_SUCCESS;
}
- }
- else
- {
- //
- // buffer is certainly too small
- //
- Status = STATUS_BUFFER_OVERFLOW;
- Irp->IoStatus.Information = sizeof(USB_HCD_DRIVERKEY_NAME);
- }
- }
- else if (IoStack->Parameters.DeviceIoControl.IoControlCode ==
IOCTL_USB_GET_ROOT_HUB_NAME)
- {
- DPRINT1("IOCTL_USB_GET_ROOT_HUB_NAME is not implemented yet\n");
- }
- }
- else
- {
- //
- // the PDO does not support any device IOCTLs
- //
- Status = STATUS_SUCCESS;
+
+ //
+ // store result
+ //
+ DriverKey->ActualLength = ResultLength +
FIELD_OFFSET(USB_HCD_DRIVERKEY_NAME, DriverKeyName) + sizeof(WCHAR);
+ Irp->IoStatus.Information =
IoStack->Parameters.DeviceIoControl.OutputBufferLength;
+ Status = STATUS_SUCCESS;
+ }
+ }
+ else
+ {
+ //
+ // buffer is certainly too small
+ //
+ Status = STATUS_BUFFER_OVERFLOW;
+ Irp->IoStatus.Information = sizeof(USB_HCD_DRIVERKEY_NAME);
+ }
+ }
+ else if (IoStack->Parameters.DeviceIoControl.IoControlCode ==
IOCTL_USB_GET_ROOT_HUB_NAME)
+ {
+ //
+ // check if sizee is at least >= USB_HCD_DRIVERKEY_NAME
+ //
+ if(IoStack->Parameters.DeviceIoControl.OutputBufferLength >=
sizeof(USB_HCD_DRIVERKEY_NAME))
+ {
+ //
+ // sanity check
+ //
+ PC_ASSERT(m_HubController);
+
+ //
+ // get input buffer
+ //
+ DriverKey = (PUSB_HCD_DRIVERKEY_NAME)Irp->AssociatedIrp.SystemBuffer;
+
+ //
+ // get symbolic link
+ //
+ Status =
m_HubController->GetHubControllerSymbolicLink(IoStack->Parameters.DeviceIoControl.OutputBufferLength
- sizeof(ULONG), DriverKey->DriverKeyName, &ResultLength);
+
+
+ if (NT_SUCCESS(Status))
+ {
+ //
+ // informal debug print
+ //
+ DPRINT1("Result %S\n", DriverKey->DriverKeyName);
+ }
+
+ //
+ // store result
+ //
+ DriverKey->ActualLength = ResultLength +
FIELD_OFFSET(USB_HCD_DRIVERKEY_NAME, DriverKeyName) + sizeof(WCHAR);
+ Irp->IoStatus.Information =
IoStack->Parameters.DeviceIoControl.OutputBufferLength;
+ Status = STATUS_SUCCESS;
+ }
+ else
+ {
+ //
+ // buffer is certainly too small
+ //
+ Status = STATUS_BUFFER_OVERFLOW;
+ Irp->IoStatus.Information = sizeof(USB_HCD_DRIVERKEY_NAME);
+ }
}
//
Modified: branches/usb-bringup/drivers/usb/usbehci_new/hub_controller.cpp
URL:
http://svn.reactos.org/svn/reactos/branches/usb-bringup/drivers/usb/usbehci…
==============================================================================
--- branches/usb-bringup/drivers/usb/usbehci_new/hub_controller.cpp [iso-8859-1]
(original)
+++ branches/usb-bringup/drivers/usb/usbehci_new/hub_controller.cpp [iso-8859-1] Sun Apr
17 22:38:32 2011
@@ -36,6 +36,8 @@
// IHubController interface functions
virtual NTSTATUS Initialize(IN PDRIVER_OBJECT DriverObject, IN PHCDCONTROLLER
Controller, IN PUSBHARDWAREDEVICE Device, IN BOOLEAN IsRootHubDevice, IN ULONG
DeviceAddress);
+ virtual NTSTATUS GetHubControllerDeviceObject(PDEVICE_OBJECT * HubDeviceObject);
+ virtual NTSTATUS GetHubControllerSymbolicLink(ULONG BufferLength, PVOID Buffer,
PULONG RequiredLength);
// IDispatchIrp interface functions
virtual NTSTATUS HandlePnp(IN PDEVICE_OBJECT DeviceObject, IN OUT PIRP Irp);
@@ -46,7 +48,6 @@
NTSTATUS HandleQueryInterface(PIO_STACK_LOCATION IoStack);
NTSTATUS SetDeviceInterface(BOOLEAN bEnable);
NTSTATUS CreatePDO(PDRIVER_OBJECT DriverObject, PDEVICE_OBJECT * OutDeviceObject);
- NTSTATUS GetHubControllerDeviceObject(PDEVICE_OBJECT * HubDeviceObject);
PUSBHARDWAREDEVICE GetUsbHardware();
ULONG AcquireDeviceAddress();
VOID ReleaseDeviceAddress(ULONG DeviceAddress);
@@ -71,8 +72,10 @@
PUSBHARDWAREDEVICE m_Hardware;
BOOLEAN m_IsRootHubDevice;
ULONG m_DeviceAddress;
+
BOOLEAN m_InterfaceEnabled;
UNICODE_STRING m_HubDeviceInterfaceString;
+
PDEVICE_OBJECT m_HubControllerDeviceObject;
PDRIVER_OBJECT m_DriverObject;
@@ -267,6 +270,51 @@
return STATUS_SUCCESS;
}
+//-----------------------------------------------------------------------------------------
+NTSTATUS
+CHubController::GetHubControllerSymbolicLink(
+ ULONG BufferLength,
+ PVOID Buffer,
+ PULONG RequiredLength)
+{
+ if (!m_InterfaceEnabled)
+ {
+ //
+ // device interface not yet enabled
+ //
+ return STATUS_UNSUCCESSFUL;
+ }
+
+ if (BufferLength < m_HubDeviceInterfaceString.Length - 8)
+ {
+ //
+ // buffer too small
+ // length is without '\??\'
+ //
+ *RequiredLength = m_HubDeviceInterfaceString.Length- 8;
+
+ //
+ // done
+ //
+ return STATUS_BUFFER_OVERFLOW;
+ }
+
+ //
+ // copy symbolic link
+ //
+ RtlCopyMemory(Buffer, &m_HubDeviceInterfaceString.Buffer[4],
m_HubDeviceInterfaceString.Length - 8);
+
+ //
+ // store length, length is without '\??\'
+ //
+ *RequiredLength = m_HubDeviceInterfaceString.Length - 8;
+
+ //
+ // done
+ //
+ return STATUS_SUCCESS;
+}
+
//-----------------------------------------------------------------------------------------
NTSTATUS
CHubController::HandlePnp(
Modified: branches/usb-bringup/drivers/usb/usbehci_new/interfaces.h
URL:
http://svn.reactos.org/svn/reactos/branches/usb-bringup/drivers/usb/usbehci…
==============================================================================
--- branches/usb-bringup/drivers/usb/usbehci_new/interfaces.h [iso-8859-1] (original)
+++ branches/usb-bringup/drivers/usb/usbehci_new/interfaces.h [iso-8859-1] Sun Apr 17
22:38:32 2011
@@ -444,6 +444,15 @@
virtual NTSTATUS GetHubControllerDeviceObject(PDEVICE_OBJECT * HubDeviceObject) = 0;
+//----------------------------------------------------------------------------------------
+//
+// GetHubControllerSymbolicLink
+//
+// Description: Returns the symbolic link of the root hub
+
+ virtual NTSTATUS GetHubControllerSymbolicLink(ULONG BufferLength, PVOID Buffer,
PULONG RequiredLength) = 0;
+
+
};
typedef IHubController *PHUBCONTROLLER;
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