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