2 The file provides Database manager for HII-related data
5 Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
6 This program and the accompanying materials are licensed and made available under
7 the terms and conditions of the BSD License that accompanies this distribution.
8 The full text of the license may be found at
9 http://opensource.org/licenses/bsd-license.php.
11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
16 #ifndef __HII_DATABASE_H__
17 #define __HII_DATABASE_H__
19 FILE_LICENCE ( BSD3 );
21 #define EFI_HII_DATABASE_PROTOCOL_GUID \
22 { 0xef9fc172, 0xa1b2, 0x4693, { 0xb3, 0x27, 0x6d, 0x32, 0xfc, 0x41, 0x60, 0x42 } }
25 typedef struct _EFI_HII_DATABASE_PROTOCOL EFI_HII_DATABASE_PROTOCOL;
29 /// EFI_HII_DATABASE_NOTIFY_TYPE.
31 typedef UINTN EFI_HII_DATABASE_NOTIFY_TYPE;
33 #define EFI_HII_DATABASE_NOTIFY_NEW_PACK 0x00000001
34 #define EFI_HII_DATABASE_NOTIFY_REMOVE_PACK 0x00000002
35 #define EFI_HII_DATABASE_NOTIFY_EXPORT_PACK 0x00000004
36 #define EFI_HII_DATABASE_NOTIFY_ADD_PACK 0x00000008
39 Functions which are registered to receive notification of
40 database events have this prototype. The actual event is encoded
41 in NotifyType. The following table describes how PackageType,
42 PackageGuid, Handle, and Package are used for each of the
45 @param PackageType Package type of the notification.
47 @param PackageGuid If PackageType is
48 EFI_HII_PACKAGE_TYPE_GUID, then this is
49 the pointer to the GUID from the Guid
50 field of EFI_HII_PACKAGE_GUID_HEADER.
51 Otherwise, it must be NULL.
53 @param Package Points to the package referred to by the notification.
55 @param Handle The handle of the package
56 list which contains the specified package.
58 @param NotifyType The type of change concerning the
60 EFI_HII_DATABASE_NOTIFY_TYPE.
65 (EFIAPI *EFI_HII_DATABASE_NOTIFY)(
67 IN CONST EFI_GUID *PackageGuid,
68 IN CONST EFI_HII_PACKAGE_HEADER *Package,
69 IN EFI_HII_HANDLE Handle,
70 IN EFI_HII_DATABASE_NOTIFY_TYPE NotifyType
75 This function adds the packages in the package list to the
76 database and returns a handle. If there is a
77 EFI_DEVICE_PATH_PROTOCOL associated with the DriverHandle, then
78 this function will create a package of type
79 EFI_PACKAGE_TYPE_DEVICE_PATH and add it to the package list. For
80 each package in the package list, registered functions with the
81 notification type NEW_PACK and having the same package type will
82 be called. For each call to NewPackageList(), there should be a
84 EFI_HII_DATABASE_PROTOCOL.RemovePackageList().
86 @param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
88 @param PackageList A pointer to an EFI_HII_PACKAGE_LIST_HEADER structure.
90 @param DriverHandle Associate the package list with this EFI handle.
91 If a NULL is specified, this data will not be associate
92 with any drivers and cannot have a callback induced.
94 @param Handle A pointer to the EFI_HII_HANDLE instance.
96 @retval EFI_SUCCESS The package list associated with the
97 Handle was added to the HII database.
99 @retval EFI_OUT_OF_RESOURCES Unable to allocate necessary
100 resources for the new database
103 @retval EFI_INVALID_PARAMETER PackageList is NULL, or Handle is NULL.
108 (EFIAPI *EFI_HII_DATABASE_NEW_PACK)(
109 IN CONST EFI_HII_DATABASE_PROTOCOL *This,
110 IN CONST EFI_HII_PACKAGE_LIST_HEADER *PackageList,
111 IN EFI_HANDLE DriverHandle, OPTIONAL
112 OUT EFI_HII_HANDLE *Handle
118 This function removes the package list that is associated with a
119 handle Handle from the HII database. Before removing the
120 package, any registered functions with the notification type
121 REMOVE_PACK and the same package type will be called. For each
122 call to EFI_HII_DATABASE_PROTOCOL.NewPackageList(), there should
123 be a corresponding call to RemovePackageList.
125 @param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
127 @param Handle The handle that was registered to the data
128 that is requested for removal.
130 @retval EFI_SUCCESS The data associated with the Handle was
131 removed from the HII database.
132 @retval EFI_NOT_FOUND The specified Handle is not in database.
137 (EFIAPI *EFI_HII_DATABASE_REMOVE_PACK)(
138 IN CONST EFI_HII_DATABASE_PROTOCOL *This,
139 IN EFI_HII_HANDLE Handle
145 This function updates the existing package list (which has the
146 specified Handle) in the HII databases, using the new package
147 list specified by PackageList. The update process has the
148 following steps: Collect all the package types in the package
149 list specified by PackageList. A package type consists of the
150 Type field of EFI_HII_PACKAGE_HEADER and, if the Type is
151 EFI_HII_PACKAGE_TYPE_GUID, the Guid field, as defined in
152 EFI_HII_PACKAGE_GUID_HEADER. Iterate through the packages within
153 the existing package list in the HII database specified by
154 Handle. If a package's type matches one of the collected types collected
155 in step 1, then perform the following steps:
156 - Call any functions registered with the notification type
158 - Remove the package from the package list and the HII
160 Add all of the packages within the new package list specified
161 by PackageList, using the following steps:
162 - Add the package to the package list and the HII database.
163 - Call any functions registered with the notification type
166 @param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
168 @param Handle The handle that was registered to the data
169 that is requested for removal.
171 @param PackageList A pointer to an EFI_HII_PACKAGE_LIST
174 @retval EFI_SUCCESS The HII database was successfully updated.
176 @retval EFI_OUT_OF_RESOURCES Unable to allocate enough memory
177 for the updated database.
179 @retval EFI_INVALID_PARAMETER PackageList was NULL.
180 @retval EFI_NOT_FOUND The specified Handle is not in database.
185 (EFIAPI *EFI_HII_DATABASE_UPDATE_PACK)(
186 IN CONST EFI_HII_DATABASE_PROTOCOL *This,
187 IN EFI_HII_HANDLE Handle,
188 IN CONST EFI_HII_PACKAGE_LIST_HEADER *PackageList
194 This function returns a list of the package handles of the
195 specified type that are currently active in the database. The
196 pseudo-type EFI_HII_PACKAGE_TYPE_ALL will cause all package
197 handles to be listed.
199 @param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
201 @param PackageType Specifies the package type of the packages
202 to list or EFI_HII_PACKAGE_TYPE_ALL for
203 all packages to be listed.
205 @param PackageGuid If PackageType is
206 EFI_HII_PACKAGE_TYPE_GUID, then this is
207 the pointer to the GUID which must match
209 EFI_HII_PACKAGE_GUID_HEADER. Otherwise, it
212 @param HandleBufferLength On input, a pointer to the length
213 of the handle buffer. On output,
214 the length of the handle buffer
215 that is required for the handles found.
217 @param Handle An array of EFI_HII_HANDLE instances returned.
219 @retval EFI_SUCCESS The matching handles are outputed successfully.
220 HandleBufferLength is updated with the actual length.
221 @retval EFI_BUFFER_TOO_SMALL The HandleBufferLength parameter
222 indicates that Handle is too
223 small to support the number of
224 handles. HandleBufferLength is
225 updated with a value that will
226 enable the data to fit.
227 @retval EFI_NOT_FOUND No matching handle could be found in database.
228 @retval EFI_INVALID_PARAMETER HandleBufferLength was NULL.
229 @retval EFI_INVALID_PARAMETER The value referenced by HandleBufferLength was not
230 zero and Handle was NULL.
231 @retval EFI_INVALID_PARAMETER PackageType is not a EFI_HII_PACKAGE_TYPE_GUID but
232 PackageGuid is not NULL, PackageType is a EFI_HII_
233 PACKAGE_TYPE_GUID but PackageGuid is NULL.
237 (EFIAPI *EFI_HII_DATABASE_LIST_PACKS)(
238 IN CONST EFI_HII_DATABASE_PROTOCOL *This,
239 IN UINT8 PackageType,
240 IN CONST EFI_GUID *PackageGuid,
241 IN OUT UINTN *HandleBufferLength,
242 OUT EFI_HII_HANDLE *Handle
247 This function will export one or all package lists in the
248 database to a buffer. For each package list exported, this
249 function will call functions registered with EXPORT_PACK and
250 then copy the package list to the buffer. The registered
251 functions may call EFI_HII_DATABASE_PROTOCOL.UpdatePackageList()
252 to modify the package list before it is copied to the buffer. If
253 the specified BufferSize is too small, then the status
254 EFI_OUT_OF_RESOURCES will be returned and the actual package
255 size will be returned in BufferSize.
257 @param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
260 @param Handle An EFI_HII_HANDLE that corresponds to the
261 desired package list in the HII database to
262 export or NULL to indicate all package lists
265 @param BufferSize On input, a pointer to the length of the
266 buffer. On output, the length of the
267 buffer that is required for the exported
270 @param Buffer A pointer to a buffer that will contain the
271 results of the export function.
274 @retval EFI_SUCCESS Package exported.
276 @retval EFI_OUT_OF_RESOURCES BufferSize is too small to hold the package.
278 @retval EFI_NOT_FOUND The specifiecd Handle could not be found in the
281 @retval EFI_INVALID_PARAMETER BufferSize was NULL.
283 @retval EFI_INVALID_PARAMETER The value referenced by BufferSize was not zero
288 (EFIAPI *EFI_HII_DATABASE_EXPORT_PACKS)(
289 IN CONST EFI_HII_DATABASE_PROTOCOL *This,
290 IN EFI_HII_HANDLE Handle,
291 IN OUT UINTN *BufferSize,
292 OUT EFI_HII_PACKAGE_LIST_HEADER *Buffer
299 This function registers a function which will be called when
300 specified actions related to packages of the specified type
301 occur in the HII database. By registering a function, other
302 HII-related drivers are notified when specific package types
303 are added, removed or updated in the HII database. Each driver
304 or application which registers a notification should use
305 EFI_HII_DATABASE_PROTOCOL.UnregisterPackageNotify() before
309 @param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
311 @param PackageType The package type. See
312 EFI_HII_PACKAGE_TYPE_x in EFI_HII_PACKAGE_HEADER.
314 @param PackageGuid If PackageType is
315 EFI_HII_PACKAGE_TYPE_GUID, then this is
316 the pointer to the GUID which must match
318 EFI_HII_PACKAGE_GUID_HEADER. Otherwise, it
321 @param PackageNotifyFn Points to the function to be called
322 when the event specified by
323 NotificationType occurs. See
324 EFI_HII_DATABASE_NOTIFY.
326 @param NotifyType Describes the types of notification which
327 this function will be receiving. See
328 EFI_HII_DATABASE_NOTIFY_TYPE for a
331 @param NotifyHandle Points to the unique handle assigned to
332 the registered notification. Can be used
333 in EFI_HII_DATABASE_PROTOCOL.UnregisterPack
334 to stop notifications.
337 @retval EFI_SUCCESS Notification registered successfully.
339 @retval EFI_OUT_OF_RESOURCES Unable to allocate necessary
342 @retval EFI_INVALID_PARAMETER PackageGuid is not NULL when
344 EFI_HII_PACKAGE_TYPE_GUID.
349 (EFIAPI *EFI_HII_DATABASE_REGISTER_NOTIFY)(
350 IN CONST EFI_HII_DATABASE_PROTOCOL *This,
351 IN UINT8 PackageType,
352 IN CONST EFI_GUID *PackageGuid,
353 IN EFI_HII_DATABASE_NOTIFY PackageNotifyFn,
354 IN EFI_HII_DATABASE_NOTIFY_TYPE NotifyType,
355 OUT EFI_HANDLE *NotifyHandle
361 Removes the specified HII database package-related notification.
363 @param This A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
365 @param NotificationHandle The handle of the notification
366 function being unregistered.
368 @retval EFI_SUCCESS Successsfully unregistered the notification.
370 @retval EFI_NOT_FOUND The incoming notification handle does not exist
371 in the current hii database.
376 (EFIAPI *EFI_HII_DATABASE_UNREGISTER_NOTIFY)(
377 IN CONST EFI_HII_DATABASE_PROTOCOL *This,
378 IN EFI_HANDLE NotificationHandle
384 This routine retrieves an array of GUID values for each keyboard
385 layout that was previously registered in the system.
387 @param This A pointer to the EFI_HII_PROTOCOL instance.
389 @param KeyGuidBufferLength On input, a pointer to the length
390 of the keyboard GUID buffer. On
391 output, the length of the handle
392 buffer that is required for the
395 @param KeyGuidBuffer An array of keyboard layout GUID
398 @retval EFI_SUCCESS KeyGuidBuffer was updated successfully.
400 @retval EFI_BUFFER_TOO_SMALL The KeyGuidBufferLength
401 parameter indicates that
402 KeyGuidBuffer is too small to
403 support the number of GUIDs.
404 KeyGuidBufferLength is updated
405 with a value that will enable
407 @retval EFI_INVALID_PARAMETER The KeyGuidBufferLength is NULL.
408 @retval EFI_INVALID_PARAMETER The value referenced by
409 KeyGuidBufferLength is not
410 zero and KeyGuidBuffer is NULL.
411 @retval EFI_NOT_FOUND There was no keyboard layout.
416 (EFIAPI *EFI_HII_FIND_KEYBOARD_LAYOUTS)(
417 IN CONST EFI_HII_DATABASE_PROTOCOL *This,
418 IN OUT UINT16 *KeyGuidBufferLength,
419 OUT EFI_GUID *KeyGuidBuffer
425 This routine retrieves the requested keyboard layout. The layout
426 is a physical description of the keys on a keyboard, and the
427 character(s) that are associated with a particular set of key
430 @param This A pointer to the EFI_HII_PROTOCOL instance.
432 @param KeyGuid A pointer to the unique ID associated with a
433 given keyboard layout. If KeyGuid is NULL then
434 the current layout will be retrieved.
436 @param KeyboardLayoutLength On input, a pointer to the length of the
437 KeyboardLayout buffer. On output, the length of
438 the data placed into KeyboardLayout.
440 @param KeyboardLayout A pointer to a buffer containing the
441 retrieved keyboard layout.
443 @retval EFI_SUCCESS The keyboard layout was retrieved
446 @retval EFI_NOT_FOUND The requested keyboard layout was not found.
451 (EFIAPI *EFI_HII_GET_KEYBOARD_LAYOUT)(
452 IN CONST EFI_HII_DATABASE_PROTOCOL *This,
453 IN CONST EFI_GUID *KeyGuid,
454 IN OUT UINT16 *KeyboardLayoutLength,
455 OUT EFI_HII_KEYBOARD_LAYOUT *KeyboardLayout
460 This routine sets the default keyboard layout to the one
461 referenced by KeyGuid. When this routine is called, an event
462 will be signaled of the EFI_HII_SET_KEYBOARD_LAYOUT_EVENT_GUID
463 group type. This is so that agents which are sensitive to the
464 current keyboard layout being changed can be notified of this
467 @param This A pointer to the EFI_HII_PROTOCOL instance.
469 @param KeyGuid A pointer to the unique ID associated with a
470 given keyboard layout.
472 @retval EFI_SUCCESS The current keyboard layout was successfully set.
474 @retval EFI_NOT_FOUND The referenced keyboard layout was not
475 found, so action was taken.
480 (EFIAPI *EFI_HII_SET_KEYBOARD_LAYOUT)(
481 IN CONST EFI_HII_DATABASE_PROTOCOL *This,
482 IN CONST EFI_GUID *KeyGuid
487 Return the EFI handle associated with a package list.
489 @param This A pointer to the EFI_HII_PROTOCOL instance.
491 @param PackageListHandle An EFI_HII_HANDLE that corresponds
492 to the desired package list in the
495 @param DriverHandle On return, contains the EFI_HANDLE which
496 was registered with the package list in
499 @retval EFI_SUCCESS The DriverHandle was returned successfully.
501 @retval EFI_INVALID_PARAMETER The PackageListHandle was not valid.
506 (EFIAPI *EFI_HII_DATABASE_GET_PACK_HANDLE)(
507 IN CONST EFI_HII_DATABASE_PROTOCOL *This,
508 IN EFI_HII_HANDLE PackageListHandle,
509 OUT EFI_HANDLE *DriverHandle
513 /// Database manager for HII-related data structures.
515 struct _EFI_HII_DATABASE_PROTOCOL {
516 EFI_HII_DATABASE_NEW_PACK NewPackageList;
517 EFI_HII_DATABASE_REMOVE_PACK RemovePackageList;
518 EFI_HII_DATABASE_UPDATE_PACK UpdatePackageList;
519 EFI_HII_DATABASE_LIST_PACKS ListPackageLists;
520 EFI_HII_DATABASE_EXPORT_PACKS ExportPackageLists;
521 EFI_HII_DATABASE_REGISTER_NOTIFY RegisterPackageNotify;
522 EFI_HII_DATABASE_UNREGISTER_NOTIFY UnregisterPackageNotify;
523 EFI_HII_FIND_KEYBOARD_LAYOUTS FindKeyboardLayouts;
524 EFI_HII_GET_KEYBOARD_LAYOUT GetKeyboardLayout;
525 EFI_HII_SET_KEYBOARD_LAYOUT SetKeyboardLayout;
526 EFI_HII_DATABASE_GET_PACK_HANDLE GetPackageListHandle;
529 extern EFI_GUID gEfiHiiDatabaseProtocolGuid;