mirror of https://github.com/acidanthera/audk.git
95 lines
4.3 KiB
C
95 lines
4.3 KiB
C
/** @file
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This file declares EFI Incompatible PCI Device Support Protocol
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This protocol allows the PCI bus driver to support resource allocation for some PCI devices that do not comply
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with the PCI Specification.
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The EFI_INCOMPATIBLE_PCI_DEVICE_SUPPORT_PROTOCOL is used by the PCI bus driver
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to support resource allocation for some PCI devices that do not comply with the PCI Specification.
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This protocol can find some incompatible PCI devices and report their special resource
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requirements to the PCI bus driver. The generic PCI bus driver does not have prior knowledge of
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any incompatible PCI devices. It interfaces with the
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EFI_INCOMPATIBLE_PCI_DEVICE_SUPPORT_PROTOCOL to find out if a device is
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incompatible and to obtain the special configuration requirements for a specific incompatible PCI
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device.
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This protocol is optional, and only one instance of this protocol can be present in the system. If a
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platform supports this protocol, this protocol is produced by a Driver Execution Environment
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(DXE) driver and must be made available before the Boot Device Selection (BDS) phase. The PCI
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bus driver will look for the presence of this protocol before it begins PCI enumeration.
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Copyright (c) 2007, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. 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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Module Name: IncompatiblePciDeviceSupport.h
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@par Revision Reference:
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This protocol is defined in Framework of EFI PCI Platform Support Specification.
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Version0.9
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**/
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#ifndef _INCOMPATIBLE_PCI_DEVICE_SUPPORT_H_
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#define _INCOMPATIBLE_PCI_DEVICE_SUPPORT_H_
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#include <PiDxe.h>
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#define EFI_INCOMPATIBLE_PCI_DEVICE_SUPPORT_PROTOCOL_GUID \
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{0xeb23f55a, 0x7863, 0x4ac2, {0x8d, 0x3d, 0x95, 0x65, 0x35, 0xde, 0x03, 0x75} }
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typedef struct _EFI_INCOMPATIBLE_PCI_DEVICE_SUPPORT_PROTOCOL EFI_INCOMPATIBLE_PCI_DEVICE_SUPPORT_PROTOCOL;
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/**
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Returns a list of ACPI resource descriptors that detail the special
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resource configuration requirements for an incompatible PCI device.
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@param This Pointer to the EFI_INCOMPATIBLE_PCI_DEVICE_SUPPORT_PROTOCOL instance.
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@param VendorID A unique ID to identify the manufacturer of the PCI device.
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@param DeviceID A unique ID to identify the particular PCI device.
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@param RevisionID A PCI device-specific revision identifier.
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@param SubsystemVendorId Specifies the subsystem vendor ID.
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@param SubsystemDeviceId Specifies the subsystem device ID.
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@param Configuration A list of ACPI resource descriptors that detail
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the configuration requirement.
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@retval EFI_SUCCESS The function always returns EFI_SUCCESS.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_INCOMPATIBLE_PCI_DEVICE_SUPPORT_CHECK_DEVICE)(
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IN EFI_INCOMPATIBLE_PCI_DEVICE_SUPPORT_PROTOCOL *This,
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IN UINTN VendorId,
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IN UINTN DeviceId,
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IN UINTN Revision,
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IN UINTN SubVendorId,OPTIONAL
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IN UINTN SubDeviceId,OPTIONAL
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OUT VOID **Configuration
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);
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//
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// Interface structure for the Incompatible PCI Device Support Protocol
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//
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/**
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@par Protocol Description:
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This protocol can find some incompatible PCI devices and report their
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special resource requirements to the PCI bus driver.
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@param CheckDevice
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Returns a list of ACPI resource descriptors that detail any special
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resource configuration requirements if the specified device is a recognized
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incompatible PCI device.
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**/
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struct _EFI_INCOMPATIBLE_PCI_DEVICE_SUPPORT_PROTOCOL {
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EFI_INCOMPATIBLE_PCI_DEVICE_SUPPORT_CHECK_DEVICE CheckDevice;
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};
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extern EFI_GUID gEfiIncompatiblePciDeviceSupportProtocolGuid;
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#endif
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