FatPkg/EnhancedFatDxe/ComponentName.c

   1 /** @file
   2
   3 Copyright (c) 2005 - 2011, Intel Corporation. All rights reserved.<BR>
   4 This program and the accompanying materials are licensed and made available
   5 under the terms and conditions of the BSD License which accompanies this
   6 distribution. The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12
  13 **/
  14
  15 #include "Fat.h"
  16
  17 //
  18 // EFI Component Name Functions
  19 //
  20 /**
  21   Retrieves a Unicode string that is the user readable name of the driver.
  22
  23   This function retrieves the user readable name of a driver in the form of a
  24   Unicode string. If the driver specified by This has a user readable name in
  25   the language specified by Language, then a pointer to the driver name is
  26   returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
  27   by This does not support the language specified by Language,
  28   then EFI_UNSUPPORTED is returned.
  29
  30   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
  31                                 EFI_COMPONENT_NAME_PROTOCOL instance.
  32
  33   @param  Language[in]          A pointer to a Null-terminated ASCII string
  34                                 array indicating the language. This is the
  35                                 language of the driver name that the caller is
  36                                 requesting, and it must match one of the
  37                                 languages specified in SupportedLanguages. The
  38                                 number of languages supported by a driver is up
  39                                 to the driver writer. Language is specified
  40                                 in RFC 4646 or ISO 639-2 language code format.
  41
  42   @param  DriverName[out]       A pointer to the Unicode string to return.
  43                                 This Unicode string is the name of the
  44                                 driver specified by This in the language
  45                                 specified by Language.
  46
  47   @retval EFI_SUCCESS           The Unicode string for the Driver specified by
  48                                 This and the language specified by Language was
  49                                 returned in DriverName.
  50
  51   @retval EFI_INVALID_PARAMETER Language is NULL.
  52
  53   @retval EFI_INVALID_PARAMETER DriverName is NULL.
  54
  55   @retval EFI_UNSUPPORTED       The driver specified by This does not support
  56                                 the language specified by Language.
  57
  58 **/
  59 EFI_STATUS
  60 EFIAPI
  61 FatComponentNameGetDriverName (
  62   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
  63   IN  CHAR8                        *Language,
  64   OUT CHAR16                       **DriverName
  65   );
  66
  67
  68 /**
  69   Retrieves a Unicode string that is the user readable name of the controller
  70   that is being managed by a driver.
  71
  72   This function retrieves the user readable name of the controller specified by
  73   ControllerHandle and ChildHandle in the form of a Unicode string. If the
  74   driver specified by This has a user readable name in the language specified by
  75   Language, then a pointer to the controller name is returned in ControllerName,
  76   and EFI_SUCCESS is returned.  If the driver specified by This is not currently
  77   managing the controller specified by ControllerHandle and ChildHandle,
  78   then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
  79   support the language specified by Language, then EFI_UNSUPPORTED is returned.
  80
  81   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
  82                                 EFI_COMPONENT_NAME_PROTOCOL instance.
  83
  84   @param  ControllerHandle[in]  The handle of a controller that the driver
  85                                 specified by This is managing.  This handle
  86                                 specifies the controller whose name is to be
  87                                 returned.
  88
  89   @param  ChildHandle[in]       The handle of the child controller to retrieve
  90                                 the name of.  This is an optional parameter that
  91                                 may be NULL.  It will be NULL for device
  92                                 drivers.  It will also be NULL for a bus drivers
  93                                 that wish to retrieve the name of the bus
  94                                 controller.  It will not be NULL for a bus
  95                                 driver that wishes to retrieve the name of a
  96                                 child controller.
  97
  98   @param  Language[in]          A pointer to a Null-terminated ASCII string
  99                                 array indicating the language.  This is the
 100                                 language of the driver name that the caller is
 101                                 requesting, and it must match one of the
 102                                 languages specified in SupportedLanguages. The
 103                                 number of languages supported by a driver is up
 104                                 to the driver writer. Language is specified in
 105                                 RFC 4646 or ISO 639-2 language code format.
 106
 107   @param  ControllerName[out]   A pointer to the Unicode string to return.
 108                                 This Unicode string is the name of the
 109                                 controller specified by ControllerHandle and
 110                                 ChildHandle in the language specified by
 111                                 Language from the point of view of the driver
 112                                 specified by This.
 113
 114   @retval EFI_SUCCESS           The Unicode string for the user readable name in
 115                                 the language specified by Language for the
 116                                 driver specified by This was returned in
 117                                 DriverName.
 118
 119   @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
 120
 121   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
 122                                 EFI_HANDLE.
 123
 124   @retval EFI_INVALID_PARAMETER Language is NULL.
 125
 126   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
 127
 128   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
 129                                 managing the controller specified by
 130                                 ControllerHandle and ChildHandle.
 131
 132   @retval EFI_UNSUPPORTED       The driver specified by This does not support
 133                                 the language specified by Language.
 134
 135 **/
 136 EFI_STATUS
 137 EFIAPI
 138 FatComponentNameGetControllerName (
 139   IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
 140   IN  EFI_HANDLE                                      ControllerHandle,
 141   IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
 142   IN  CHAR8                                           *Language,
 143   OUT CHAR16                                          **ControllerName
 144   );
 145
 146 //
 147 // EFI Component Name Protocol
 148 //
 149 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL  gFatComponentName = {
 150   FatComponentNameGetDriverName,
 151   FatComponentNameGetControllerName,
 152   "eng"
 153 };
 154
 155 //
 156 // EFI Component Name 2 Protocol
 157 //
 158 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gFatComponentName2 = {
 159   (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) FatComponentNameGetDriverName,
 160   (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) FatComponentNameGetControllerName,
 161   "en"
 162 };
 163
 164 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mFatDriverNameTable[] = {
 165   {
 166     "eng;en",
 167     L"FAT File System Driver"
 168   },
 169   {
 170     NULL,
 171     NULL
 172   }
 173 };
 174
 175 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mFatControllerNameTable[] = {
 176   {
 177     "eng;en",
 178     L"FAT File System"
 179   },
 180   {
 181     NULL,
 182     NULL
 183   }
 184 };
 185
 186
 187 /**
 188   Retrieves a Unicode string that is the user readable name of the driver.
 189
 190   This function retrieves the user readable name of a driver in the form of a
 191   Unicode string. If the driver specified by This has a user readable name in
 192   the language specified by Language, then a pointer to the driver name is
 193   returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
 194   by This does not support the language specified by Language,
 195   then EFI_UNSUPPORTED is returned.
 196
 197   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
 198                                 EFI_COMPONENT_NAME_PROTOCOL instance.
 199
 200   @param  Language[in]          A pointer to a Null-terminated ASCII string
 201                                 array indicating the language. This is the
 202                                 language of the driver name that the caller is
 203                                 requesting, and it must match one of the
 204                                 languages specified in SupportedLanguages. The
 205                                 number of languages supported by a driver is up
 206                                 to the driver writer. Language is specified
 207                                 in RFC 4646 or ISO 639-2 language code format.
 208
 209   @param  DriverName[out]       A pointer to the Unicode string to return.
 210                                 This Unicode string is the name of the
 211                                 driver specified by This in the language
 212                                 specified by Language.
 213
 214   @retval EFI_SUCCESS           The Unicode string for the Driver specified by
 215                                 This and the language specified by Language was
 216                                 returned in DriverName.
 217
 218   @retval EFI_INVALID_PARAMETER Language is NULL.
 219
 220   @retval EFI_INVALID_PARAMETER DriverName is NULL.
 221
 222   @retval EFI_UNSUPPORTED       The driver specified by This does not support
 223                                 the language specified by Language.
 224
 225 **/
 226 EFI_STATUS
 227 EFIAPI
 228 FatComponentNameGetDriverName (
 229   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
 230   IN  CHAR8                        *Language,
 231   OUT CHAR16                       **DriverName
 232   )
 233 {
 234   return LookupUnicodeString2 (
 235            Language,
 236            This->SupportedLanguages,
 237            mFatDriverNameTable,
 238            DriverName,
 239            (BOOLEAN)(This == &gFatComponentName)
 240            );
 241 }
 242
 243 /**
 244   Retrieves a Unicode string that is the user readable name of the controller
 245   that is being managed by a driver.
 246
 247   This function retrieves the user readable name of the controller specified by
 248   ControllerHandle and ChildHandle in the form of a Unicode string. If the
 249   driver specified by This has a user readable name in the language specified by
 250   Language, then a pointer to the controller name is returned in ControllerName,
 251   and EFI_SUCCESS is returned.  If the driver specified by This is not currently
 252   managing the controller specified by ControllerHandle and ChildHandle,
 253   then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
 254   support the language specified by Language, then EFI_UNSUPPORTED is returned.
 255
 256   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
 257                                 EFI_COMPONENT_NAME_PROTOCOL instance.
 258
 259   @param  ControllerHandle[in]  The handle of a controller that the driver
 260                                 specified by This is managing.  This handle
 261                                 specifies the controller whose name is to be
 262                                 returned.
 263
 264   @param  ChildHandle[in]       The handle of the child controller to retrieve
 265                                 the name of.  This is an optional parameter that
 266                                 may be NULL.  It will be NULL for device
 267                                 drivers.  It will also be NULL for a bus drivers
 268                                 that wish to retrieve the name of the bus
 269                                 controller.  It will not be NULL for a bus
 270                                 driver that wishes to retrieve the name of a
 271                                 child controller.
 272
 273   @param  Language[in]          A pointer to a Null-terminated ASCII string
 274                                 array indicating the language.  This is the
 275                                 language of the driver name that the caller is
 276                                 requesting, and it must match one of the
 277                                 languages specified in SupportedLanguages. The
 278                                 number of languages supported by a driver is up
 279                                 to the driver writer. Language is specified in
 280                                 RFC 4646 or ISO 639-2 language code format.
 281
 282   @param  ControllerName[out]   A pointer to the Unicode string to return.
 283                                 This Unicode string is the name of the
 284                                 controller specified by ControllerHandle and
 285                                 ChildHandle in the language specified by
 286                                 Language from the point of view of the driver
 287                                 specified by This.
 288
 289   @retval EFI_SUCCESS           The Unicode string for the user readable name in
 290                                 the language specified by Language for the
 291                                 driver specified by This was returned in
 292                                 DriverName.
 293
 294   @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
 295
 296   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
 297                                 EFI_HANDLE.
 298
 299   @retval EFI_INVALID_PARAMETER Language is NULL.
 300
 301   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
 302
 303   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
 304                                 managing the controller specified by
 305                                 ControllerHandle and ChildHandle.
 306
 307   @retval EFI_UNSUPPORTED       The driver specified by This does not support
 308                                 the language specified by Language.
 309
 310 **/
 311 EFI_STATUS
 312 EFIAPI
 313 FatComponentNameGetControllerName (
 314   IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
 315   IN  EFI_HANDLE                                      ControllerHandle,
 316   IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
 317   IN  CHAR8                                           *Language,
 318   OUT CHAR16                                          **ControllerName
 319   )
 320 {
 321   EFI_STATUS  Status;
 322
 323   //
 324   // This is a device driver, so ChildHandle must be NULL.
 325   //
 326   if (ChildHandle != NULL) {
 327     return EFI_UNSUPPORTED;
 328   }
 329
 330   //
 331   // Make sure this driver is currently managing ControllHandle
 332   //
 333   Status = EfiTestManagedDevice (
 334              ControllerHandle,
 335              gFatDriverBinding.DriverBindingHandle,
 336              &gEfiDiskIoProtocolGuid
 337              );
 338   if (EFI_ERROR (Status)) {
 339     return Status;
 340   }
 341
 342   return LookupUnicodeString2 (
 343            Language,
 344            This->SupportedLanguages,
 345            mFatControllerNameTable,
 346            ControllerName,
 347            (BOOLEAN)(This == &gFatComponentName)
 348            );
 349 }