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/*++
Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
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
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