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61 lines
2.3 KiB
C
61 lines
2.3 KiB
C
/** @file
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UEFI Driver Family Protocol
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Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __EFI_DRIVER_FAMILY_OVERRIDE_H__
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#define __EFI_DRIVER_FAMILY_OVERRIDE_H__
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#define EFI_DRIVER_FAMILY_OVERRIDE_PROTOCOL_GUID \
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{ \
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0xb1ee129e, 0xda36, 0x4181, { 0x91, 0xf8, 0x4, 0xa4, 0x92, 0x37, 0x66, 0xa7 } \
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}
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typedef struct _EFI_DRIVER_FAMILY_OVERRIDE_PROTOCOL EFI_DRIVER_FAMILY_OVERRIDE_PROTOCOL;
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//
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// Prototypes for the Driver Family Override Protocol
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//
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//
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/**
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This function returns the version value associated with the driver specified by This.
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Retrieves the version of the driver that is used by the EFI Boot Service ConnectController()
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to sort the set of Driver Binding Protocols in order from highest priority to lowest priority.
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For drivers that support the Driver Family Override Protocol, those drivers are sorted so that
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the drivers with higher values returned by GetVersion() are higher priority than drivers that
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return lower values from GetVersion().
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@param This A pointer to the EFI_DRIVER_FAMILY_OVERRIDE_PROTOCOL instance.
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@return The version value associated with the driver specified by This.
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**/
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typedef
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UINT32
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(EFIAPI *EFI_DRIVER_FAMILY_OVERRIDE_GET_VERSION)(
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IN EFI_DRIVER_FAMILY_OVERRIDE_PROTOCOL *This
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);
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///
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/// When installed, the Driver Family Override Protocol produces a GUID that represents
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/// a family of drivers. Drivers with the same GUID are members of the same family
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/// When drivers are connected to controllers, drivers with a higher revision value
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/// in the same driver family are connected with a higher priority than drivers
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/// with a lower revision value in the same driver family. The EFI Boot Service
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/// Connect Controller uses five rules to build a prioritized list of drivers when
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/// a request is made to connect a driver to a controller. The Driver Family Protocol
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/// rule is between the Platform Specific Driver Override Protocol and above the
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/// Bus Specific Driver Override Protocol.
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///
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struct _EFI_DRIVER_FAMILY_OVERRIDE_PROTOCOL {
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EFI_DRIVER_FAMILY_OVERRIDE_GET_VERSION GetVersion;
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};
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extern EFI_GUID gEfiDriverFamilyOverrideProtocolGuid;
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#endif
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