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529 lines
20 KiB
C
529 lines
20 KiB
C
/** @file
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The file provides Database manager for HII-related data
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structures.
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Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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@par Revision Reference:
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This Protocol was introduced in UEFI Specification 2.1.
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**/
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#ifndef __HII_DATABASE_H__
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#define __HII_DATABASE_H__
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#define EFI_HII_DATABASE_PROTOCOL_GUID \
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{ 0xef9fc172, 0xa1b2, 0x4693, { 0xb3, 0x27, 0x6d, 0x32, 0xfc, 0x41, 0x60, 0x42 } }
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typedef struct _EFI_HII_DATABASE_PROTOCOL EFI_HII_DATABASE_PROTOCOL;
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///
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/// EFI_HII_DATABASE_NOTIFY_TYPE.
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///
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typedef UINTN EFI_HII_DATABASE_NOTIFY_TYPE;
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#define EFI_HII_DATABASE_NOTIFY_NEW_PACK 0x00000001
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#define EFI_HII_DATABASE_NOTIFY_REMOVE_PACK 0x00000002
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#define EFI_HII_DATABASE_NOTIFY_EXPORT_PACK 0x00000004
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#define EFI_HII_DATABASE_NOTIFY_ADD_PACK 0x00000008
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/**
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Functions which are registered to receive notification of
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database events have this prototype. The actual event is encoded
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in NotifyType. The following table describes how PackageType,
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PackageGuid, Handle, and Package are used for each of the
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notification types.
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@param PackageType Package type of the notification.
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@param PackageGuid If PackageType is
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EFI_HII_PACKAGE_TYPE_GUID, then this is
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the pointer to the GUID from the Guid
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field of EFI_HII_PACKAGE_GUID_HEADER.
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Otherwise, it must be NULL.
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@param Package Points to the package referred to by the notification.
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@param Handle The handle of the package
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list which contains the specified package.
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@param NotifyType The type of change concerning the
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database. See
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EFI_HII_DATABASE_NOTIFY_TYPE.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_HII_DATABASE_NOTIFY)(
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IN UINT8 PackageType,
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IN CONST EFI_GUID *PackageGuid,
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IN CONST EFI_HII_PACKAGE_HEADER *Package,
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IN EFI_HII_HANDLE Handle,
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IN EFI_HII_DATABASE_NOTIFY_TYPE NotifyType
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);
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/**
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This function adds the packages in the package list to the
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database and returns a handle. If there is a
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EFI_DEVICE_PATH_PROTOCOL associated with the DriverHandle, then
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this function will create a package of type
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EFI_PACKAGE_TYPE_DEVICE_PATH and add it to the package list. For
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each package in the package list, registered functions with the
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notification type NEW_PACK and having the same package type will
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be called. For each call to NewPackageList(), there should be a
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corresponding call to
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EFI_HII_DATABASE_PROTOCOL.RemovePackageList().
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@param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
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@param PackageList A pointer to an EFI_HII_PACKAGE_LIST_HEADER structure.
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@param DriverHandle Associate the package list with this EFI handle.
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If a NULL is specified, this data will not be associate
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with any drivers and cannot have a callback induced.
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@param Handle A pointer to the EFI_HII_HANDLE instance.
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@retval EFI_SUCCESS The package list associated with the
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Handle was added to the HII database.
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@retval EFI_OUT_OF_RESOURCES Unable to allocate necessary
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resources for the new database
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contents.
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@retval EFI_INVALID_PARAMETER PackageList is NULL, or Handle is NULL.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_HII_DATABASE_NEW_PACK)(
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IN CONST EFI_HII_DATABASE_PROTOCOL *This,
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IN CONST EFI_HII_PACKAGE_LIST_HEADER *PackageList,
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IN EFI_HANDLE DriverHandle, OPTIONAL
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OUT EFI_HII_HANDLE *Handle
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);
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/**
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This function removes the package list that is associated with a
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handle Handle from the HII database. Before removing the
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package, any registered functions with the notification type
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REMOVE_PACK and the same package type will be called. For each
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call to EFI_HII_DATABASE_PROTOCOL.NewPackageList(), there should
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be a corresponding call to RemovePackageList.
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@param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
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@param Handle The handle that was registered to the data
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that is requested for removal.
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@retval EFI_SUCCESS The data associated with the Handle was
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removed from the HII database.
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@retval EFI_NOT_FOUND The specified Handle is not in database.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_HII_DATABASE_REMOVE_PACK)(
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IN CONST EFI_HII_DATABASE_PROTOCOL *This,
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IN EFI_HII_HANDLE Handle
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);
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/**
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This function updates the existing package list (which has the
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specified Handle) in the HII databases, using the new package
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list specified by PackageList. The update process has the
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following steps: Collect all the package types in the package
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list specified by PackageList. A package type consists of the
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Type field of EFI_HII_PACKAGE_HEADER and, if the Type is
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EFI_HII_PACKAGE_TYPE_GUID, the Guid field, as defined in
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EFI_HII_PACKAGE_GUID_HEADER. Iterate through the packages within
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the existing package list in the HII database specified by
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Handle. If a package's type matches one of the collected types collected
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in step 1, then perform the following steps:
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- Call any functions registered with the notification type
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REMOVE_PACK.
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- Remove the package from the package list and the HII
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database.
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Add all of the packages within the new package list specified
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by PackageList, using the following steps:
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- Add the package to the package list and the HII database.
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- Call any functions registered with the notification type
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ADD_PACK.
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@param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
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@param Handle The handle that was registered to the data
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that is requested for removal.
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@param PackageList A pointer to an EFI_HII_PACKAGE_LIST
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package.
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@retval EFI_SUCCESS The HII database was successfully updated.
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@retval EFI_OUT_OF_RESOURCES Unable to allocate enough memory
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for the updated database.
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@retval EFI_INVALID_PARAMETER PackageList was NULL.
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@retval EFI_NOT_FOUND The specified Handle is not in database.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_HII_DATABASE_UPDATE_PACK)(
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IN CONST EFI_HII_DATABASE_PROTOCOL *This,
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IN EFI_HII_HANDLE Handle,
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IN CONST EFI_HII_PACKAGE_LIST_HEADER *PackageList
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);
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/**
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This function returns a list of the package handles of the
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specified type that are currently active in the database. The
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pseudo-type EFI_HII_PACKAGE_TYPE_ALL will cause all package
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handles to be listed.
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@param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
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@param PackageType Specifies the package type of the packages
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to list or EFI_HII_PACKAGE_TYPE_ALL for
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all packages to be listed.
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@param PackageGuid If PackageType is
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EFI_HII_PACKAGE_TYPE_GUID, then this is
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the pointer to the GUID which must match
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the Guid field of
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EFI_HII_PACKAGE_GUID_HEADER. Otherwise, it
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must be NULL.
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@param HandleBufferLength On input, a pointer to the length
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of the handle buffer. On output,
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the length of the handle buffer
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that is required for the handles found.
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@param Handle An array of EFI_HII_HANDLE instances returned.
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@retval EFI_SUCCESS The matching handles are outputted successfully.
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HandleBufferLength is updated with the actual length.
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@retval EFI_BUFFER_TOO_SMALL The HandleBufferLength parameter
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indicates that Handle is too
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small to support the number of
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handles. HandleBufferLength is
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updated with a value that will
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enable the data to fit.
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@retval EFI_NOT_FOUND No matching handle could be found in database.
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@retval EFI_INVALID_PARAMETER HandleBufferLength was NULL.
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@retval EFI_INVALID_PARAMETER The value referenced by HandleBufferLength was not
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zero and Handle was NULL.
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@retval EFI_INVALID_PARAMETER PackageType is not a EFI_HII_PACKAGE_TYPE_GUID but
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PackageGuid is not NULL, PackageType is a EFI_HII_
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PACKAGE_TYPE_GUID but PackageGuid is NULL.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_HII_DATABASE_LIST_PACKS)(
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IN CONST EFI_HII_DATABASE_PROTOCOL *This,
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IN UINT8 PackageType,
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IN CONST EFI_GUID *PackageGuid,
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IN OUT UINTN *HandleBufferLength,
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OUT EFI_HII_HANDLE *Handle
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);
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/**
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This function will export one or all package lists in the
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database to a buffer. For each package list exported, this
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function will call functions registered with EXPORT_PACK and
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then copy the package list to the buffer. The registered
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functions may call EFI_HII_DATABASE_PROTOCOL.UpdatePackageList()
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to modify the package list before it is copied to the buffer. If
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the specified BufferSize is too small, then the status
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EFI_OUT_OF_RESOURCES will be returned and the actual package
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size will be returned in BufferSize.
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@param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
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@param Handle An EFI_HII_HANDLE that corresponds to the
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desired package list in the HII database to
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export or NULL to indicate all package lists
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should be exported.
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@param BufferSize On input, a pointer to the length of the
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buffer. On output, the length of the
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buffer that is required for the exported
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data.
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@param Buffer A pointer to a buffer that will contain the
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results of the export function.
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@retval EFI_SUCCESS Package exported.
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@retval EFI_OUT_OF_RESOURCES BufferSize is too small to hold the package.
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@retval EFI_NOT_FOUND The specified Handle could not be found in the
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current database.
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@retval EFI_INVALID_PARAMETER BufferSize was NULL.
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@retval EFI_INVALID_PARAMETER The value referenced by BufferSize was not zero
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and Buffer was NULL.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_HII_DATABASE_EXPORT_PACKS)(
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IN CONST EFI_HII_DATABASE_PROTOCOL *This,
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IN EFI_HII_HANDLE Handle,
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IN OUT UINTN *BufferSize,
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OUT EFI_HII_PACKAGE_LIST_HEADER *Buffer
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);
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/**
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This function registers a function which will be called when
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specified actions related to packages of the specified type
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occur in the HII database. By registering a function, other
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HII-related drivers are notified when specific package types
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are added, removed or updated in the HII database. Each driver
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or application which registers a notification should use
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EFI_HII_DATABASE_PROTOCOL.UnregisterPackageNotify() before
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exiting.
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@param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
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@param PackageType The package type. See
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EFI_HII_PACKAGE_TYPE_x in EFI_HII_PACKAGE_HEADER.
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@param PackageGuid If PackageType is
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EFI_HII_PACKAGE_TYPE_GUID, then this is
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the pointer to the GUID which must match
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the Guid field of
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EFI_HII_PACKAGE_GUID_HEADER. Otherwise, it
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must be NULL.
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@param PackageNotifyFn Points to the function to be called
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when the event specified by
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NotificationType occurs. See
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EFI_HII_DATABASE_NOTIFY.
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@param NotifyType Describes the types of notification which
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this function will be receiving. See
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EFI_HII_DATABASE_NOTIFY_TYPE for a
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list of types.
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@param NotifyHandle Points to the unique handle assigned to
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the registered notification. Can be used
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in EFI_HII_DATABASE_PROTOCOL.UnregisterPack
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to stop notifications.
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@retval EFI_SUCCESS Notification registered successfully.
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@retval EFI_OUT_OF_RESOURCES Unable to allocate necessary
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data structures.
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@retval EFI_INVALID_PARAMETER PackageGuid is not NULL when
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PackageType is not
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EFI_HII_PACKAGE_TYPE_GUID.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_HII_DATABASE_REGISTER_NOTIFY)(
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IN CONST EFI_HII_DATABASE_PROTOCOL *This,
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IN UINT8 PackageType,
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IN CONST EFI_GUID *PackageGuid,
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IN EFI_HII_DATABASE_NOTIFY PackageNotifyFn,
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IN EFI_HII_DATABASE_NOTIFY_TYPE NotifyType,
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OUT EFI_HANDLE *NotifyHandle
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);
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/**
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Removes the specified HII database package-related notification.
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@param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
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@param NotificationHandle The handle of the notification
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function being unregistered.
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@retval EFI_SUCCESS Successsfully unregistered the notification.
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@retval EFI_NOT_FOUND The incoming notification handle does not exist
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in the current hii database.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_HII_DATABASE_UNREGISTER_NOTIFY)(
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IN CONST EFI_HII_DATABASE_PROTOCOL *This,
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IN EFI_HANDLE NotificationHandle
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);
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/**
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This routine retrieves an array of GUID values for each keyboard
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layout that was previously registered in the system.
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@param This A pointer to the EFI_HII_PROTOCOL instance.
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@param KeyGuidBufferLength On input, a pointer to the length
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of the keyboard GUID buffer. On
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output, the length of the handle
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buffer that is required for the
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handles found.
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@param KeyGuidBuffer An array of keyboard layout GUID
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instances returned.
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@retval EFI_SUCCESS KeyGuidBuffer was updated successfully.
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@retval EFI_BUFFER_TOO_SMALL The KeyGuidBufferLength
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parameter indicates that
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KeyGuidBuffer is too small to
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support the number of GUIDs.
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KeyGuidBufferLength is updated
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with a value that will enable
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the data to fit.
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@retval EFI_INVALID_PARAMETER The KeyGuidBufferLength is NULL.
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@retval EFI_INVALID_PARAMETER The value referenced by
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KeyGuidBufferLength is not
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zero and KeyGuidBuffer is NULL.
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@retval EFI_NOT_FOUND There was no keyboard layout.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_HII_FIND_KEYBOARD_LAYOUTS)(
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IN CONST EFI_HII_DATABASE_PROTOCOL *This,
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IN OUT UINT16 *KeyGuidBufferLength,
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OUT EFI_GUID *KeyGuidBuffer
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);
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/**
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This routine retrieves the requested keyboard layout. The layout
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is a physical description of the keys on a keyboard, and the
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character(s) that are associated with a particular set of key
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strokes.
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@param This A pointer to the EFI_HII_PROTOCOL instance.
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@param KeyGuid A pointer to the unique ID associated with a
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given keyboard layout. If KeyGuid is NULL then
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the current layout will be retrieved.
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@param KeyboardLayoutLength On input, a pointer to the length of the
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KeyboardLayout buffer. On output, the length of
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the data placed into KeyboardLayout.
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@param KeyboardLayout A pointer to a buffer containing the
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retrieved keyboard layout.
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@retval EFI_SUCCESS The keyboard layout was retrieved
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successfully.
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@retval EFI_NOT_FOUND The requested keyboard layout was not found.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_HII_GET_KEYBOARD_LAYOUT)(
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IN CONST EFI_HII_DATABASE_PROTOCOL *This,
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IN CONST EFI_GUID *KeyGuid,
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IN OUT UINT16 *KeyboardLayoutLength,
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OUT EFI_HII_KEYBOARD_LAYOUT *KeyboardLayout
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);
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/**
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This routine sets the default keyboard layout to the one
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referenced by KeyGuid. When this routine is called, an event
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will be signaled of the EFI_HII_SET_KEYBOARD_LAYOUT_EVENT_GUID
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group type. This is so that agents which are sensitive to the
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current keyboard layout being changed can be notified of this
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change.
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@param This A pointer to the EFI_HII_PROTOCOL instance.
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@param KeyGuid A pointer to the unique ID associated with a
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given keyboard layout.
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@retval EFI_SUCCESS The current keyboard layout was successfully set.
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@retval EFI_NOT_FOUND The referenced keyboard layout was not
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found, so action was taken.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_HII_SET_KEYBOARD_LAYOUT)(
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IN CONST EFI_HII_DATABASE_PROTOCOL *This,
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IN CONST EFI_GUID *KeyGuid
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);
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/**
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Return the EFI handle associated with a package list.
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@param This A pointer to the EFI_HII_PROTOCOL instance.
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@param PackageListHandle An EFI_HII_HANDLE that corresponds
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to the desired package list in the
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HIIdatabase.
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@param DriverHandle On return, contains the EFI_HANDLE which
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was registered with the package list in
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NewPackageList().
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@retval EFI_SUCCESS The DriverHandle was returned successfully.
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@retval EFI_INVALID_PARAMETER The PackageListHandle was not valid.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_HII_DATABASE_GET_PACK_HANDLE)(
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IN CONST EFI_HII_DATABASE_PROTOCOL *This,
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IN EFI_HII_HANDLE PackageListHandle,
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OUT EFI_HANDLE *DriverHandle
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);
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///
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/// Database manager for HII-related data structures.
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///
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struct _EFI_HII_DATABASE_PROTOCOL {
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EFI_HII_DATABASE_NEW_PACK NewPackageList;
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EFI_HII_DATABASE_REMOVE_PACK RemovePackageList;
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EFI_HII_DATABASE_UPDATE_PACK UpdatePackageList;
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EFI_HII_DATABASE_LIST_PACKS ListPackageLists;
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EFI_HII_DATABASE_EXPORT_PACKS ExportPackageLists;
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EFI_HII_DATABASE_REGISTER_NOTIFY RegisterPackageNotify;
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EFI_HII_DATABASE_UNREGISTER_NOTIFY UnregisterPackageNotify;
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EFI_HII_FIND_KEYBOARD_LAYOUTS FindKeyboardLayouts;
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EFI_HII_GET_KEYBOARD_LAYOUT GetKeyboardLayout;
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EFI_HII_SET_KEYBOARD_LAYOUT SetKeyboardLayout;
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EFI_HII_DATABASE_GET_PACK_HANDLE GetPackageListHandle;
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};
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extern EFI_GUID gEfiHiiDatabaseProtocolGuid;
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#endif
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