/** @file
The file provides Database manager for HII-related data
structures.
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@par Revision Reference:
This Protocol was introduced in UEFI Specification 2.1.
**/
#ifndef __HII_DATABASE_H__
#define __HII_DATABASE_H__
FILE_LICENCE ( BSD2_PATENT );
#define EFI_HII_DATABASE_PROTOCOL_GUID \
{ 0xef9fc172, 0xa1b2, 0x4693, { 0xb3, 0x27, 0x6d, 0x32, 0xfc, 0x41, 0x60, 0x42 } }
typedef struct _EFI_HII_DATABASE_PROTOCOL EFI_HII_DATABASE_PROTOCOL;
///
/// EFI_HII_DATABASE_NOTIFY_TYPE.
///
typedef UINTN EFI_HII_DATABASE_NOTIFY_TYPE;
#define EFI_HII_DATABASE_NOTIFY_NEW_PACK 0x00000001
#define EFI_HII_DATABASE_NOTIFY_REMOVE_PACK 0x00000002
#define EFI_HII_DATABASE_NOTIFY_EXPORT_PACK 0x00000004
#define EFI_HII_DATABASE_NOTIFY_ADD_PACK 0x00000008
/**
Functions which are registered to receive notification of
database events have this prototype. The actual event is encoded
in NotifyType. The following table describes how PackageType,
PackageGuid, Handle, and Package are used for each of the
notification types.
@param PackageType Package type of the notification.
@param PackageGuid If PackageType is
EFI_HII_PACKAGE_TYPE_GUID, then this is
the pointer to the GUID from the Guid
field of EFI_HII_PACKAGE_GUID_HEADER.
Otherwise, it must be NULL.
@param Package Points to the package referred to by the notification.
@param Handle The handle of the package
list which contains the specified package.
@param NotifyType The type of change concerning the
database. See
EFI_HII_DATABASE_NOTIFY_TYPE.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_DATABASE_NOTIFY)(
IN UINT8 PackageType,
IN CONST EFI_GUID *PackageGuid,
IN CONST EFI_HII_PACKAGE_HEADER *Package,
IN EFI_HII_HANDLE Handle,
IN EFI_HII_DATABASE_NOTIFY_TYPE NotifyType
);
/**
This function adds the packages in the package list to the
database and returns a handle. If there is a
EFI_DEVICE_PATH_PROTOCOL associated with the DriverHandle, then
this function will create a package of type
EFI_PACKAGE_TYPE_DEVICE_PATH and add it to the package list. For
each package in the package list, registered functions with the
notification type NEW_PACK and having the same package type will
be called. For each call to NewPackageList(), there should be a
corresponding call to
EFI_HII_DATABASE_PROTOCOL.RemovePackageList().
@param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
@param PackageList A pointer to an EFI_HII_PACKAGE_LIST_HEADER structure.
@param DriverHandle Associate the package list with this EFI handle.
If a NULL is specified, this data will not be associate
with any drivers and cannot have a callback induced.
@param Handle A pointer to the EFI_HII_HANDLE instance.
@retval EFI_SUCCESS The package list associated with the
Handle was added to the HII database.
@retval EFI_OUT_OF_RESOURCES Unable to allocate necessary
resources for the new database
contents.
@retval EFI_INVALID_PARAMETER PackageList is NULL, or Handle is NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_DATABASE_NEW_PACK)(
IN CONST EFI_HII_DATABASE_PROTOCOL *This,
IN CONST EFI_HII_PACKAGE_LIST_HEADER *PackageList,
IN EFI_HANDLE DriverHandle OPTIONAL,
OUT EFI_HII_HANDLE *Handle
);
/**
This function removes the package list that is associated with a
handle Handle from the HII database. Before removing the
package, any registered functions with the notification type
REMOVE_PACK and the same package type will be called. For each
call to EFI_HII_DATABASE_PROTOCOL.NewPackageList(), there should
be a corresponding call to RemovePackageList.
@param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
@param Handle The handle that was registered to the data
that is requested for removal.
@retval EFI_SUCCESS The data associated with the Handle was
removed from the HII database.
@retval EFI_NOT_FOUND The specified Handle is not in database.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_DATABASE_REMOVE_PACK)(
IN CONST EFI_HII_DATABASE_PROTOCOL *This,
IN EFI_HII_HANDLE Handle
);
/**
This function updates the existing package list (which has the
specified Handle) in the HII databases, using the new package
list specified by PackageList. The update process has the
following steps: Collect all the package types in the package
list specified by PackageList. A package type consists of the
Type field of EFI_HII_PACKAGE_HEADER and, if the Type is
EFI_HII_PACKAGE_TYPE_GUID, the Guid field, as defined in
EFI_HII_PACKAGE_GUID_HEADER. Iterate through the packages within
the existing package list in the HII database specified by
Handle. If a package's type matches one of the collected types collected
in step 1, then perform the following steps:
- Call any functions registered with the notification type
REMOVE_PACK.
- Remove the package from the package list and the HII
database.
Add all of the packages within the new package list specified
by PackageList, using the following steps:
- Add the package to the package list and the HII database.
- Call any functions registered with the notification type
ADD_PACK.
@param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
@param Handle The handle that was registered to the data
that is requested for removal.
@param PackageList A pointer to an EFI_HII_PACKAGE_LIST
package.
@retval EFI_SUCCESS The HII database was successfully updated.
@retval EFI_OUT_OF_RESOURCES Unable to allocate enough memory
for the updated database.
@retval EFI_INVALID_PARAMETER PackageList was NULL.
@retval EFI_NOT_FOUND The specified Handle is not in database.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_DATABASE_UPDATE_PACK)(
IN CONST EFI_HII_DATABASE_PROTOCOL *This,
IN EFI_HII_HANDLE Handle,
IN CONST EFI_HII_PACKAGE_LIST_HEADER *PackageList
);
/**
This function returns a list of the package handles of the
specified type that are currently active in the database. The
pseudo-type EFI_HII_PACKAGE_TYPE_ALL will cause all package
handles to be listed.
@param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
@param PackageType Specifies the package type of the packages
to list or EFI_HII_PACKAGE_TYPE_ALL for
all packages to be listed.
@param PackageGuid If PackageType is
EFI_HII_PACKAGE_TYPE_GUID, then this is
the pointer to the GUID which must match
the Guid field of
EFI_HII_PACKAGE_GUID_HEADER. Otherwise, it
must be NULL.
@param HandleBufferLength On input, a pointer to the length
of the handle buffer. On output,
the length of the handle buffer
that is required for the handles found.
@param Handle An array of EFI_HII_HANDLE instances returned.
@retval EFI_SUCCESS The matching handles are outputted successfully.
HandleBufferLength is updated with the actual length.
@retval EFI_BUFFER_TOO_SMALL The HandleBufferLength parameter
indicates that Handle is too
small to support the number of
handles. HandleBufferLength is
updated with a value that will
enable the data to fit.
@retval EFI_NOT_FOUND No matching handle could be found in database.
@retval EFI_INVALID_PARAMETER HandleBufferLength was NULL.
@retval EFI_INVALID_PARAMETER The value referenced by HandleBufferLength was not
zero and Handle was NULL.
@retval EFI_INVALID_PARAMETER PackageType is not a EFI_HII_PACKAGE_TYPE_GUID but
PackageGuid is not NULL, PackageType is a EFI_HII_
PACKAGE_TYPE_GUID but PackageGuid is NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_DATABASE_LIST_PACKS)(
IN CONST EFI_HII_DATABASE_PROTOCOL *This,
IN UINT8 PackageType,
IN CONST EFI_GUID *PackageGuid,
IN OUT UINTN *HandleBufferLength,
OUT EFI_HII_HANDLE *Handle
);
/**
This function will export one or all package lists in the
database to a buffer. For each package list exported, this
function will call functions registered with EXPORT_PACK and
then copy the package list to the buffer. The registered
functions may call EFI_HII_DATABASE_PROTOCOL.UpdatePackageList()
to modify the package list before it is copied to the buffer. If
the specified BufferSize is too small, then the status
EFI_OUT_OF_RESOURCES will be returned and the actual package
size will be returned in BufferSize.
@param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
@param Handle An EFI_HII_HANDLE that corresponds to the
desired package list in the HII database to
export or NULL to indicate all package lists
should be exported.
@param BufferSize On input, a pointer to the length of the
buffer. On output, the length of the
buffer that is required for the exported
data.
@param Buffer A pointer to a buffer that will contain the
results of the export function.
@retval EFI_SUCCESS Package exported.
@retval EFI_OUT_OF_RESOURCES BufferSize is too small to hold the package.
@retval EFI_NOT_FOUND The specified Handle could not be found in the
current database.
@retval EFI_INVALID_PARAMETER BufferSize was NULL.
@retval EFI_INVALID_PARAMETER The value referenced by BufferSize was not zero
and Buffer was NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_DATABASE_EXPORT_PACKS)(
IN CONST EFI_HII_DATABASE_PROTOCOL *This,
IN EFI_HII_HANDLE Handle,
IN OUT UINTN *BufferSize,
OUT EFI_HII_PACKAGE_LIST_HEADER *Buffer
);
/**
This function registers a function which will be called when
specified actions related to packages of the specified type
occur in the HII database. By registering a function, other
HII-related drivers are notified when specific package types
are added, removed or updated in the HII database. Each driver
or application which registers a notification should use
EFI_HII_DATABASE_PROTOCOL.UnregisterPackageNotify() before
exiting.
@param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
@param PackageType The package type. See
EFI_HII_PACKAGE_TYPE_x in EFI_HII_PACKAGE_HEADER.
@param PackageGuid If PackageType is
EFI_HII_PACKAGE_TYPE_GUID, then this is
the pointer to the GUID which must match
the Guid field of
EFI_HII_PACKAGE_GUID_HEADER. Otherwise, it
must be NULL.
@param PackageNotifyFn Points to the function to be called
when the event specified by
NotificationType occurs. See
EFI_HII_DATABASE_NOTIFY.
@param NotifyType Describes the types of notification which
this function will be receiving. See
EFI_HII_DATABASE_NOTIFY_TYPE for a
list of types.
@param NotifyHandle Points to the unique handle assigned to
the registered notification. Can be used
in EFI_HII_DATABASE_PROTOCOL.UnregisterPack
to stop notifications.
@retval EFI_SUCCESS Notification registered successfully.
@retval EFI_OUT_OF_RESOURCES Unable to allocate necessary
data structures.
@retval EFI_INVALID_PARAMETER PackageGuid is not NULL when
PackageType is not
EFI_HII_PACKAGE_TYPE_GUID.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_DATABASE_REGISTER_NOTIFY)(
IN CONST EFI_HII_DATABASE_PROTOCOL *This,
IN UINT8 PackageType,
IN CONST EFI_GUID *PackageGuid,
IN EFI_HII_DATABASE_NOTIFY PackageNotifyFn,
IN EFI_HII_DATABASE_NOTIFY_TYPE NotifyType,
OUT EFI_HANDLE *NotifyHandle
);
/**
Removes the specified HII database package-related notification.
@param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
@param NotificationHandle The handle of the notification
function being unregistered.
@retval EFI_SUCCESS Successsfully unregistered the notification.
@retval EFI_NOT_FOUND The incoming notification handle does not exist
in the current hii database.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_DATABASE_UNREGISTER_NOTIFY)(
IN CONST EFI_HII_DATABASE_PROTOCOL *This,
IN EFI_HANDLE NotificationHandle
);
/**
This routine retrieves an array of GUID values for each keyboard
layout that was previously registered in the system.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param KeyGuidBufferLength On input, a pointer to the length
of the keyboard GUID buffer. On
output, the length of the handle
buffer that is required for the
handles found.
@param KeyGuidBuffer An array of keyboard layout GUID
instances returned.
@retval EFI_SUCCESS KeyGuidBuffer was updated successfully.
@retval EFI_BUFFER_TOO_SMALL The KeyGuidBufferLength
parameter indicates that
KeyGuidBuffer is too small to
support the number of GUIDs.
KeyGuidBufferLength is updated
with a value that will enable
the data to fit.
@retval EFI_INVALID_PARAMETER The KeyGuidBufferLength is NULL.
@retval EFI_INVALID_PARAMETER The value referenced by
KeyGuidBufferLength is not
zero and KeyGuidBuffer is NULL.
@retval EFI_NOT_FOUND There was no keyboard layout.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_FIND_KEYBOARD_LAYOUTS)(
IN CONST EFI_HII_DATABASE_PROTOCOL *This,
IN OUT UINT16 *KeyGuidBufferLength,
OUT EFI_GUID *KeyGuidBuffer
);
/**
This routine retrieves the requested keyboard layout. The layout
is a physical description of the keys on a keyboard, and the
character(s) that are associated with a particular set of key
strokes.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param KeyGuid A pointer to the unique ID associated with a
given keyboard layout. If KeyGuid is NULL then
the current layout will be retrieved.
@param KeyboardLayoutLength On input, a pointer to the length of the
KeyboardLayout buffer. On output, the length of
the data placed into KeyboardLayout.
@param KeyboardLayout A pointer to a buffer containing the
retrieved keyboard layout.
@retval EFI_SUCCESS The keyboard layout was retrieved
successfully.
@retval EFI_NOT_FOUND The requested keyboard layout was not found.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_GET_KEYBOARD_LAYOUT)(
IN CONST EFI_HII_DATABASE_PROTOCOL *This,
IN CONST EFI_GUID *KeyGuid,
IN OUT UINT16 *KeyboardLayoutLength,
OUT EFI_HII_KEYBOARD_LAYOUT *KeyboardLayout
);
/**
This routine sets the default keyboard layout to the one
referenced by KeyGuid. When this routine is called, an event
will be signaled of the EFI_HII_SET_KEYBOARD_LAYOUT_EVENT_GUID
group type. This is so that agents which are sensitive to the
current keyboard layout being changed can be notified of this
change.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param KeyGuid A pointer to the unique ID associated with a
given keyboard layout.
@retval EFI_SUCCESS The current keyboard layout was successfully set.
@retval EFI_NOT_FOUND The referenced keyboard layout was not
found, so action was taken.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_SET_KEYBOARD_LAYOUT)(
IN CONST EFI_HII_DATABASE_PROTOCOL *This,
IN CONST EFI_GUID *KeyGuid
);
/**
Return the EFI handle associated with a package list.
@param This A pointer to the EFI_HII_PROTOCOL instance.
@param PackageListHandle An EFI_HII_HANDLE that corresponds
to the desired package list in the
HIIdatabase.
@param DriverHandle On return, contains the EFI_HANDLE which
was registered with the package list in
NewPackageList().
@retval EFI_SUCCESS The DriverHandle was returned successfully.
@retval EFI_INVALID_PARAMETER The PackageListHandle was not valid.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HII_DATABASE_GET_PACK_HANDLE)(
IN CONST EFI_HII_DATABASE_PROTOCOL *This,
IN EFI_HII_HANDLE PackageListHandle,
OUT EFI_HANDLE *DriverHandle
);
///
/// Database manager for HII-related data structures.
///
struct _EFI_HII_DATABASE_PROTOCOL {
EFI_HII_DATABASE_NEW_PACK NewPackageList;
EFI_HII_DATABASE_REMOVE_PACK RemovePackageList;
EFI_HII_DATABASE_UPDATE_PACK UpdatePackageList;
EFI_HII_DATABASE_LIST_PACKS ListPackageLists;
EFI_HII_DATABASE_EXPORT_PACKS ExportPackageLists;
EFI_HII_DATABASE_REGISTER_NOTIFY RegisterPackageNotify;
EFI_HII_DATABASE_UNREGISTER_NOTIFY UnregisterPackageNotify;
EFI_HII_FIND_KEYBOARD_LAYOUTS FindKeyboardLayouts;
EFI_HII_GET_KEYBOARD_LAYOUT GetKeyboardLayout;
EFI_HII_SET_KEYBOARD_LAYOUT SetKeyboardLayout;
EFI_HII_DATABASE_GET_PACK_HANDLE GetPackageListHandle;
};
extern EFI_GUID gEfiHiiDatabaseProtocolGuid;
#endif
