1 files changed, 90 insertions, 0 deletions
diff --git a/Vlv2TbltDevicePkg/Include/Ppi/UsbController.h b/Vlv2TbltDevicePkg/Include/Ppi/UsbController.h
new file mode 100644
index 0000000000..dc6468a045
--- /dev/null
+++ b/Vlv2TbltDevicePkg/Include/Ppi/UsbController.h
@@ -0,0 +1,90 @@
+/*++
+
+  Copyright (c) 2004  - 2014, Intel Corporation. All rights reserved.<BR>
+                                                                                   
+  This program and the accompanying materials are licensed and made available under
+  the terms and conditions of the BSD License that accompanies this distribution.  
+  The full text of the license may be found at                                     
+  http://opensource.org/licenses/bsd-license.php.                                  
+                                                                                   
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,            
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.    
+                                                                                   
+
+  Define APIs to retrieve USB Host Controller Info such as controller type and
+  I/O Port Base Address.
+
+
+**/
+
+#ifndef _PEI_USB_CONTROLLER_PPI_H_
+#define _PEI_USB_CONTROLLER_PPI_H_
+
+//
+// Global ID for the PEI_USB_CONTROLLER_PPI.
+//
+#define PEI_USB_CONTROLLER_PPI_GUID \
+  { \
+    0x3bc1f6de, 0x693e, 0x4547,{ 0xa3, 0x0, 0x21, 0x82, 0x3c, 0xa4, 0x20, 0xb2} \
+  }
+
+//
+// Forward declaration for the PEI_USB_CONTROLLER_PPI.
+//
+typedef struct _PEI_USB_CONTROLLER_PPI PEI_USB_CONTROLLER_PPI;
+
+//
+// This bit is used in the ControllerType return parameter of GetUsbController()
+// to identify the USB Host Controller type as UHCI
+//
+#define PEI_UHCI_CONTROLLER 0x01
+
+//
+// This bit is used in the ControllerType return parameter of GetUsbController()
+// to identify the USB Host Controller type as OHCI
+//
+#define PEI_OHCI_CONTROLLER 0x02
+
+//
+// This bit is used in the ControllerType return parameter of GetUsbController()
+// to identify the USB Host Controller type as EHCI
+//
+#define PEI_EHCI_CONTROLLER 0x03
+
+/**
+  Retrieve USB Host Controller Info such as controller type and I/O Base Address.
+
+  @param[in]  PeiServices      The pointer to the PEI Services Table.
+  @param[in]  This             The pointer to this instance of the PEI_USB_CONTROLLER_PPI.
+  @param[in]  ControllerId     The ID of the USB controller.
+  @param[out] ControllerType   On output, returns the type of the USB controller.
+  @param[out] BaseAddress      On output, returns the base address of UHCI's I/O ports
+                               if UHCI is enabled or the base address of EHCI's MMIO
+                               if EHCI is enabled.
+
+  @retval EFI_SUCCESS             USB controller attributes were returned successfully.
+  @retval EFI_INVALID_PARAMETER   ControllerId is greater than the maximum number
+                                  of USB controller supported by this platform.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *PEI_GET_USB_CONTROLLER)(
+  IN  EFI_PEI_SERVICES        **PeiServices,
+  IN  PEI_USB_CONTROLLER_PPI  *This,
+  IN  UINT8                   UsbControllerId,
+  OUT UINTN                   *ControllerType,
+  OUT UINTN                   *BaseAddress
+  );
+
+//
+// This PPI contains a single service to retrieve the USB Host Controller type
+// and the base address of the I/O ports used to access the USB Host Controller.
+//
+struct _PEI_USB_CONTROLLER_PPI {
+  PEI_GET_USB_CONTROLLER  GetUsbController;
+};
+
+extern EFI_GUID gPeiUsbControllerPpiGuid;
+
+#endif