MdePkg/Include/Library/HiiLib.h

   1 /** @file
   2   Public include file for the HII Library
   3
   4   Copyright (c) 2007 - 2008, Intel Corporation
   5   All rights reserved. This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 #ifndef __HII_LIB_H__
  16 #define __HII_LIB_H__
  17
  18 ///
  19 /// Limited buffer size recommended by RFC4646 (4.3.  Length Considerations)
  20 /// (42 characters plus a NULL terminator)
  21 ///
  22 #define RFC_3066_ENTRY_SIZE             (42 + 1)
  23
  24 #define ISO_639_2_ENTRY_SIZE            3
  25
  26 /**
  27   Assemble EFI_HII_PACKAGE_LIST according to the passed in packages.
  28
  29   If GuidId is NULL, then ASSERT.
  30   If not enough resource to complete the operation, then ASSERT.
  31
  32   @param  NumberOfPackages       Number of packages.
  33   @param  GuidId                          Package GUID.
  34   @param  ...                                Variable argument list for packages to be assembled.
  35
  36   @return EFI_HII_PACKAGE_LIST_HEADER Pointer of EFI_HII_PACKAGE_LIST_HEADER. The function will ASSERT if system has
  37                                                                 not enough resource to complete the operation.
  38
  39 **/
  40 EFI_HII_PACKAGE_LIST_HEADER *
  41 EFIAPI
  42 HiiLibPreparePackageList (
  43   IN UINTN                    NumberOfPackages,
  44   IN CONST EFI_GUID                 *GuidId,
  45   ...
  46   )
  47 ;
  48
  49 /**
  50   This function allocates pool for an EFI_HII_PACKAGE_LIST structure
  51   with additional space that is big enough to host all packages described by the variable
  52   argument list of package pointers.  The allocated structure is initialized using NumberOfPackages,
  53   GuidId,  and the variable length argument list of package pointers.
  54
  55   Then, EFI_HII_PACKAGE_LIST will be register to the default System HII Database. The
  56   Handle to the newly registered Package List is returned throught HiiHandle.
  57
  58   If HiiHandle is NULL, then ASSERT.
  59
  60   @param  NumberOfPackages    The number of HII packages to register.
  61   @param  GuidId              Package List GUID ID.
  62   @param  DriverHandle        Optional. If not NULL, the DriverHandle on which an instance of DEVICE_PATH_PROTOCOL is installed.
  63                               This DriverHandle uniquely defines the device that the added packages are associated with.
  64   @param  HiiHandle           On output, the HiiHandle is update with the handle which can be used to retrieve the Package
  65                               List later. If the functions failed to add the package to the default HII database, this value will
  66                               be set to NULL.
  67   @param  ...                 The variable argument list describing all HII Package.
  68
  69   @return  EFI_SUCCESS         If the packages are successfully added to the default HII database.
  70   @return  EFI_OUT_OF_RESOURCE Not enough resource to complete the operation.
  71
  72 **/
  73 EFI_STATUS
  74 EFIAPI
  75 HiiLibAddPackages (
  76   IN       UINTN               NumberOfPackages,
  77   IN CONST EFI_GUID            *GuidId,
  78   IN       EFI_HANDLE          DriverHandle, OPTIONAL
  79   OUT      EFI_HII_HANDLE      *HiiHandle,
  80   ...
  81   )
  82 ;
  83
  84 /**
  85   Removes a package list from the default HII database.
  86
  87   If HiiHandle is NULL, then ASSERT.
  88   If HiiHandle is not a valid EFI_HII_HANDLE in the default HII database, then ASSERT.
  89
  90   @param  HiiHandle                The handle that was previously registered to the data base that is requested for removal.
  91                                              List later.
  92
  93 **/
  94 VOID
  95 EFIAPI
  96 HiiLibRemovePackages (
  97   IN      EFI_HII_HANDLE      HiiHandle
  98   )
  99 ;
 100
 101 /**
 102   This function adds the string into String Package of each language
 103   supported by the package list.
 104
 105   If String is NULL, then ASSERT.
 106   If StringId is NULL, the ASSERT.
 107   If PackageList could not be found in the default HII database, then ASSERT.
 108
 109   @param  PackageList            Handle of the package list where this string will
 110                                             be added.
 111   @param  StringId               On return, contains the new strings id, which is
 112                                           unique within PackageList.
 113   @param  String                 Points to the new null-terminated string.
 114
 115   @retval EFI_SUCCESS             The new string was added successfully.
 116   @retval EFI_OUT_OF_RESOURCES   Could not add the string due to lack of resources.
 117
 118 **/
 119 EFI_STATUS
 120 EFIAPI
 121 HiiLibNewString (
 122   IN  EFI_HII_HANDLE                  PackageList,
 123   OUT EFI_STRING_ID                   *StringId,
 124   IN  CONST EFI_STRING                String
 125   )
 126 ;
 127
 128 /**
 129   This function update the specified string in String Package of each language
 130   supported by the package list.
 131
 132   If String is NULL, then ASSERT.
 133   If PackageList could not be found in the default HII database, then ASSERT.
 134   If StringId is not found in PackageList, then ASSERT.
 135
 136   @param  PackageList            Handle of the package list where this string will
 137                                             be added.
 138   @param  StringId               Ths String Id to be updated.
 139   @param  String                 Points to the new null-terminated string.
 140
 141   @retval EFI_SUCCESS            The new string was added successfully.
 142   @retval EFI_OUT_OF_RESOURCES   Could not add the string due to lack of resources.
 143
 144 **/
 145 EFI_STATUS
 146 EFIAPI
 147 HiiLibSetString (
 148   IN  EFI_HII_HANDLE                  PackageList,
 149   IN  EFI_STRING_ID                   StringId,
 150   IN  CONST EFI_STRING                String
 151   )
 152 ;
 153
 154 /**
 155   This function try to retrieve string from String package of current language.
 156   If fails, it try to retrieve string from String package of first language it support.
 157
 158   If String is NULL, then ASSERT.
 159   If StringSize is NULL, then ASSERT.
 160   If PackageList could not be found in the default HII database, then ASSERT.
 161   If StringId is not found in PackageList, then ASSERT.
 162
 163   @param  PackageList     The package list in the HII database to search for
 164                                      the specified string.
 165   @param  StringId          The string's id, which is unique within
 166                                       PackageList.
 167   @param  String             Points to the new null-terminated string.
 168   @param  StringSize       On entry, points to the size of the buffer pointed
 169                                  to by String, in bytes. On return, points to the
 170                                  length of the string, in bytes.
 171
 172   @retval EFI_SUCCESS            The string was returned successfully.
 173   @retval EFI_NOT_FOUND          The string specified by StringId is not available.
 174   @retval EFI_BUFFER_TOO_SMALL   The buffer specified by StringLength is too small
 175                                  to hold the string.
 176
 177 **/
 178 EFI_STATUS
 179 EFIAPI
 180 HiiLibGetString (
 181   IN  EFI_HII_HANDLE                  PackageList,
 182   IN  EFI_STRING_ID                   StringId,
 183   OUT EFI_STRING                      String,
 184   IN  OUT UINTN                       *StringSize
 185   )
 186 ;
 187
 188 /**
 189   Get string specified by StringId form the HiiHandle. The caller
 190   is responsible to free the *String.
 191
 192   If String is NULL, then ASSERT.
 193   If HiiHandle could not be found in the default HII database, then ASSERT.
 194   If StringId is not found in PackageList, then ASSERT.
 195
 196   @param  HiiHandle              The HII handle of package list.
 197   @param  StringId               The String ID.
 198   @param  String                 The output string.
 199
 200   @retval EFI_NOT_FOUND          String is not found.
 201   @retval EFI_SUCCESS            Operation is successful.
 202   @retval EFI_OUT_OF_RESOURCES   There is not enought memory in the system.
 203   @retval EFI_INVALID_PARAMETER  The String is NULL.
 204
 205 **/
 206 EFI_STATUS
 207 EFIAPI
 208 HiiLibGetStringFromHandle (
 209   IN  EFI_HII_HANDLE                  HiiHandle,
 210   IN  EFI_STRING_ID                   StringId,
 211   OUT EFI_STRING                      *String
 212   )
 213 ;
 214
 215 /**
 216   Get the string given the StringId and String package Producer's Guid. The caller
 217   is responsible to free the *String.
 218
 219   If PackageList with the matching ProducerGuid is not found, then ASSERT.
 220   If PackageList with the matching ProducerGuid is found but no String is
 221   specified by StringId is found, then ASSERT.
 222
 223   @param  ProducerGuid           The Guid of String package list.
 224   @param  StringId               The String ID.
 225   @param  String                 The output string.
 226
 227   @retval EFI_SUCCESS            Operation is successful.
 228   @retval EFI_OUT_OF_RESOURCES   There is not enought memory in the system.
 229
 230 **/
 231 EFI_STATUS
 232 EFIAPI
 233 HiiLibGetStringFromToken (
 234   IN  EFI_GUID                        *ProducerGuid,
 235   IN  EFI_STRING_ID                   StringId,
 236   OUT EFI_STRING                      *String
 237   )
 238 ;
 239
 240 /**
 241   Determines the handles that are currently active in the database.
 242   It's the caller's responsibility to free handle buffer.
 243
 244   If HandleBufferLength is NULL, then ASSERT.
 245   If HiiHandleBuffer is NULL, then ASSERT.
 246
 247   @param  HandleBufferLength     On input, a pointer to the length of the handle
 248                                  buffer. On output, the length of the handle buffer
 249                                  that is required for the handles found.
 250   @param  HiiHandleBuffer        Pointer to an array of Hii Handles returned.
 251
 252   @retval EFI_SUCCESS            Get an array of Hii Handles successfully.
 253
 254 **/
 255 EFI_STATUS
 256 EFIAPI
 257 HiiLibGetHiiHandles (
 258   IN OUT UINTN                     *HandleBufferLength,
 259   OUT    EFI_HII_HANDLE            **HiiHandleBuffer
 260   )
 261 ;
 262
 263 /**
 264   Extract Hii package list GUID for given HII handle.
 265
 266   If HiiHandle could not be found in the default HII database, then ASSERT.
 267   If Guid is NULL, then ASSERT.
 268
 269   @param  Handle              Hii handle
 270   @param  Guid                Package list GUID
 271
 272   @retval EFI_SUCCESS            Successfully extract GUID from Hii database.
 273
 274 **/
 275 EFI_STATUS
 276 EFIAPI
 277 HiiLibExtractGuidFromHiiHandle (
 278   IN      EFI_HII_HANDLE      Handle,
 279   OUT     EFI_GUID            *Guid
 280   )
 281 ;
 282
 283 /**
 284   Find HII Handle in the default HII database associated with given Device Path.
 285
 286   If DevicePath is NULL, then ASSERT.
 287
 288   @param  DevicePath             Device Path associated with the HII package list
 289                                  handle.
 290
 291   @retval Handle                 HII package list Handle associated with the Device
 292                                         Path.
 293   @retval NULL                   Hii Package list handle is not found.
 294
 295 **/
 296 EFI_HII_HANDLE
 297 EFIAPI
 298 HiiLibDevicePathToHiiHandle (
 299   IN EFI_DEVICE_PATH_PROTOCOL   *DevicePath
 300   )
 301 ;
 302
 303
 304 /**
 305   Determine what is the current language setting. The space reserved for Lang
 306   must be at least RFC_3066_ENTRY_SIZE bytes;
 307
 308   If Lang is NULL, then ASSERT.
 309
 310   @param  Lang                   Pointer of system language. Lang will always be filled with
 311                                          a valid RFC 3066 language string. If "PlatformLang" is not
 312                                          set in the system, the default language specifed by PcdUefiVariableDefaultPlatformLang
 313                                          is returned.
 314
 315   @return  EFI_SUCCESS     If the EFI Variable with "PlatformLang" is set and return in Lang.
 316   @return  EFI_NOT_FOUND If the EFI Variable with "PlatformLang" is not set, but a valid default language is return in Lang.
 317
 318 **/
 319 EFI_STATUS
 320 EFIAPI
 321 HiiLibGetCurrentLanguage (
 322   OUT     CHAR8               *Lang
 323   )
 324 ;
 325
 326 /**
 327   Get next language from language code list (with separator ';').
 328
 329   If LangCode is NULL, then ASSERT.
 330   If Lang is NULL, then ASSERT.
 331
 332   @param  LangCode    On input: point to first language in the list. On
 333                                  output: point to next language in the list, or
 334                                  NULL if no more language in the list.
 335   @param  Lang           The first language in the list.
 336
 337 **/
 338 VOID
 339 EFIAPI
 340 HiiLibGetNextLanguage (
 341   IN OUT CHAR8      **LangCode,
 342   OUT CHAR8         *Lang
 343   )
 344 ;
 345
 346 /**
 347   This function returns the list of supported languages, in the format specified
 348   in UEFI specification Appendix M.
 349
 350   If HiiHandle is not a valid Handle in the default HII database, then ASSERT.
 351
 352   @param  HiiHandle              The HII package list handle.
 353
 354   @retval   !NULL  The supported languages.
 355   @retval   NULL    If Supported Languages can not be retrived.
 356
 357 **/
 358 CHAR8 *
 359 EFIAPI
 360 HiiLibGetSupportedLanguages (
 361   IN EFI_HII_HANDLE           HiiHandle
 362   )
 363 ;
 364
 365 /**
 366   This function returns the list of supported 2nd languages, in the format specified
 367   in UEFI specification Appendix M.
 368
 369   If HiiHandle is not a valid Handle in the default HII database, then ASSERT.
 370   If not enough resource to complete the operation, then ASSERT.
 371
 372   @param  HiiHandle              The HII package list handle.
 373   @param  FirstLanguage          Pointer to language name buffer.
 374
 375   @return The supported languages.
 376
 377 **/
 378 CHAR8 *
 379 EFIAPI
 380 HiiLibGetSupportedSecondaryLanguages (
 381   IN EFI_HII_HANDLE           HiiHandle,
 382   IN CONST CHAR8              *FirstLanguage
 383   )
 384 ;
 385
 386
 387 /**
 388   This function returns the number of supported languages on HiiHandle.
 389
 390   If HiiHandle is not a valid Handle in the default HII database, then ASSERT.
 391   If not enough resource to complete the operation, then ASSERT.
 392
 393   @param  HiiHandle              The HII package list handle.
 394
 395   @return The  number of supported languages.
 396
 397 **/
 398 UINT16
 399 EFIAPI
 400 HiiLibGetSupportedLanguageNumber (
 401   IN EFI_HII_HANDLE           HiiHandle
 402   )
 403 ;
 404
 405 /**
 406   Convert language code from RFC3066 to ISO639-2.
 407
 408   LanguageRfc3066 contain a single RFC 3066 code such as
 409   "en-US" or "fr-FR".
 410
 411   The LanguageRfc3066 must be a buffer large enough
 412   for ISO_639_2_ENTRY_SIZE characters.
 413
 414   If LanguageRfc3066 is NULL, then ASSERT.
 415   If LanguageIso639 is NULL, then ASSERT.
 416
 417   @param  LanguageRfc3066        RFC3066 language code.
 418   @param  LanguageIso639         ISO639-2 language code.
 419
 420   @retval EFI_SUCCESS            Language code converted.
 421   @retval EFI_NOT_FOUND          Language code not found.
 422
 423 **/
 424 EFI_STATUS
 425 EFIAPI
 426 ConvertRfc3066LanguageToIso639Language (
 427   IN  CHAR8   *LanguageRfc3066,
 428   OUT CHAR8   *LanguageIso639
 429   )
 430 ;
 431
 432 /**
 433   Convert language code from ISO639-2 to RFC3066.
 434
 435   LanguageIso639 contain a single ISO639-2 code such as
 436   "eng" or "fra".
 437
 438   The LanguageRfc3066 must be a buffer large enough
 439   for RFC_3066_ENTRY_SIZE characters.
 440
 441   If LanguageIso639 is NULL, then ASSERT.
 442   If LanguageRfc3066 is NULL, then ASSERT.
 443
 444   @param  LanguageIso639         ISO639-2 language code.
 445   @param  LanguageRfc3066        RFC3066 language code.
 446
 447   @retval EFI_SUCCESS            Language code converted.
 448   @retval EFI_NOT_FOUND          Language code not found.
 449
 450 **/
 451 EFI_STATUS
 452 EFIAPI
 453 ConvertIso639LanguageToRfc3066Language (
 454   IN  CONST CHAR8   *LanguageIso639,
 455   OUT CHAR8         *LanguageRfc3066
 456   )
 457 ;
 458
 459 /**
 460   Convert language code list from RFC3066 to ISO639-2, e.g. "en-US;fr-FR" will
 461   be converted to "engfra".
 462
 463   If SupportedLanguages is NULL, then ASSERT.
 464
 465   @param  SupportedLanguages     The RFC3066 language list.
 466
 467   @return The ISO639-2 language list.
 468
 469 **/
 470 CHAR8 *
 471 EFIAPI
 472 Rfc3066ToIso639 (
 473   CHAR8  *SupportedLanguages
 474   )
 475 ;
 476
 477 #endif