EmulatorPkg/EmuBlockIoDxe/ComponentName.c

   1 /**@file
   2
   3 Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
   4 SPDX-License-Identifier: BSD-2-Clause-Patent
   5
   6 Module Name:
   7
   8   ComponentName.c
   9
  10 Abstract:
  11
  12 **/
  13
  14 #include "EmuBlockIo.h"
  15
  16 //
  17 // EFI Component Name Functions
  18 //
  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 EmuBlockIoComponentNameGetDriverName (
  62   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
  63   IN  CHAR8                        *Language,
  64   OUT CHAR16                       **DriverName
  65   );
  66
  67 /**
  68   Retrieves a Unicode string that is the user readable name of the controller
  69   that is being managed by a driver.
  70
  71   This function retrieves the user readable name of the controller specified by
  72   ControllerHandle and ChildHandle in the form of a Unicode string. If the
  73   driver specified by This has a user readable name in the language specified by
  74   Language, then a pointer to the controller name is returned in ControllerName,
  75   and EFI_SUCCESS is returned.  If the driver specified by This is not currently
  76   managing the controller specified by ControllerHandle and ChildHandle,
  77   then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
  78   support the language specified by Language, then EFI_UNSUPPORTED is returned.
  79
  80   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
  81                                 EFI_COMPONENT_NAME_PROTOCOL instance.
  82
  83   @param  ControllerHandle[in]  The handle of a controller that the driver
  84                                 specified by This is managing.  This handle
  85                                 specifies the controller whose name is to be
  86                                 returned.
  87
  88   @param  ChildHandle[in]       The handle of the child controller to retrieve
  89                                 the name of.  This is an optional parameter that
  90                                 may be NULL.  It will be NULL for device
  91                                 drivers.  It will also be NULL for a bus drivers
  92                                 that wish to retrieve the name of the bus
  93                                 controller.  It will not be NULL for a bus
  94                                 driver that wishes to retrieve the name of a
  95                                 child controller.
  96
  97   @param  Language[in]          A pointer to a Null-terminated ASCII string
  98                                 array indicating the language.  This is the
  99                                 language of the driver name that the caller is
 100                                 requesting, and it must match one of the
 101                                 languages specified in SupportedLanguages. The
 102                                 number of languages supported by a driver is up
 103                                 to the driver writer. Language is specified in
 104                                 RFC 4646 or ISO 639-2 language code format.
 105
 106   @param  ControllerName[out]   A pointer to the Unicode string to return.
 107                                 This Unicode string is the name of the
 108                                 controller specified by ControllerHandle and
 109                                 ChildHandle in the language specified by
 110                                 Language from the point of view of the driver
 111                                 specified by This.
 112
 113   @retval EFI_SUCCESS           The Unicode string for the user readable name in
 114                                 the language specified by Language for the
 115                                 driver specified by This was returned in
 116                                 DriverName.
 117
 118   @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
 119
 120   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
 121                                 EFI_HANDLE.
 122
 123   @retval EFI_INVALID_PARAMETER Language is NULL.
 124
 125   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
 126
 127   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
 128                                 managing the controller specified by
 129                                 ControllerHandle and ChildHandle.
 130
 131   @retval EFI_UNSUPPORTED       The driver specified by This does not support
 132                                 the language specified by Language.
 133
 134 **/
 135 EFI_STATUS
 136 EFIAPI
 137 EmuBlockIoComponentNameGetControllerName (
 138   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
 139   IN  EFI_HANDLE                   ControllerHandle,
 140   IN  EFI_HANDLE                   ChildHandle        OPTIONAL,
 141   IN  CHAR8                        *Language,
 142   OUT CHAR16                       **ControllerName
 143   );
 144
 145 //
 146 // EFI Component Name Protocol
 147 //
 148 GLOBAL_REMOVE_IF_UNREFERENCED  EFI_COMPONENT_NAME_PROTOCOL  gEmuBlockIoComponentName = {
 149   EmuBlockIoComponentNameGetDriverName,
 150   EmuBlockIoComponentNameGetControllerName,
 151   "eng"
 152 };
 153
 154 //
 155 // EFI Component Name 2 Protocol
 156 //
 157 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL  gEmuBlockIoComponentName2 = {
 158   (EFI_COMPONENT_NAME2_GET_DRIVER_NAME)EmuBlockIoComponentNameGetDriverName,
 159   (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME)EmuBlockIoComponentNameGetControllerName,
 160   "en"
 161 };
 162
 163 EFI_UNICODE_STRING_TABLE  mEmuBlockIoDriverNameTable[] = {
 164   { "eng;en", L"Emu Block I/O Driver" },
 165   { NULL,     NULL                    }
 166 };
 167
 168 /**
 169   Retrieves a Unicode string that is the user readable name of the driver.
 170
 171   This function retrieves the user readable name of a driver in the form of a
 172   Unicode string. If the driver specified by This has a user readable name in
 173   the language specified by Language, then a pointer to the driver name is
 174   returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
 175   by This does not support the language specified by Language,
 176   then EFI_UNSUPPORTED is returned.
 177
 178   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
 179                                 EFI_COMPONENT_NAME_PROTOCOL instance.
 180
 181   @param  Language[in]          A pointer to a Null-terminated ASCII string
 182                                 array indicating the language. This is the
 183                                 language of the driver name that the caller is
 184                                 requesting, and it must match one of the
 185                                 languages specified in SupportedLanguages. The
 186                                 number of languages supported by a driver is up
 187                                 to the driver writer. Language is specified
 188                                 in RFC 4646 or ISO 639-2 language code format.
 189
 190   @param  DriverName[out]       A pointer to the Unicode string to return.
 191                                 This Unicode string is the name of the
 192                                 driver specified by This in the language
 193                                 specified by Language.
 194
 195   @retval EFI_SUCCESS           The Unicode string for the Driver specified by
 196                                 This and the language specified by Language was
 197                                 returned in DriverName.
 198
 199   @retval EFI_INVALID_PARAMETER Language is NULL.
 200
 201   @retval EFI_INVALID_PARAMETER DriverName is NULL.
 202
 203   @retval EFI_UNSUPPORTED       The driver specified by This does not support
 204                                 the language specified by Language.
 205
 206 **/
 207 EFI_STATUS
 208 EFIAPI
 209 EmuBlockIoComponentNameGetDriverName (
 210   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
 211   IN  CHAR8                        *Language,
 212   OUT CHAR16                       **DriverName
 213   )
 214 {
 215   return LookupUnicodeString2 (
 216            Language,
 217            This->SupportedLanguages,
 218            mEmuBlockIoDriverNameTable,
 219            DriverName,
 220            (BOOLEAN)(This == &gEmuBlockIoComponentName)
 221            );
 222 }
 223
 224 /**
 225   Retrieves a Unicode string that is the user readable name of the controller
 226   that is being managed by a driver.
 227
 228   This function retrieves the user readable name of the controller specified by
 229   ControllerHandle and ChildHandle in the form of a Unicode string. If the
 230   driver specified by This has a user readable name in the language specified by
 231   Language, then a pointer to the controller name is returned in ControllerName,
 232   and EFI_SUCCESS is returned.  If the driver specified by This is not currently
 233   managing the controller specified by ControllerHandle and ChildHandle,
 234   then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
 235   support the language specified by Language, then EFI_UNSUPPORTED is returned.
 236
 237   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
 238                                 EFI_COMPONENT_NAME_PROTOCOL instance.
 239
 240   @param  ControllerHandle[in]  The handle of a controller that the driver
 241                                 specified by This is managing.  This handle
 242                                 specifies the controller whose name is to be
 243                                 returned.
 244
 245   @param  ChildHandle[in]       The handle of the child controller to retrieve
 246                                 the name of.  This is an optional parameter that
 247                                 may be NULL.  It will be NULL for device
 248                                 drivers.  It will also be NULL for a bus drivers
 249                                 that wish to retrieve the name of the bus
 250                                 controller.  It will not be NULL for a bus
 251                                 driver that wishes to retrieve the name of a
 252                                 child controller.
 253
 254   @param  Language[in]          A pointer to a Null-terminated ASCII string
 255                                 array indicating the language.  This is the
 256                                 language of the driver name that the caller is
 257                                 requesting, and it must match one of the
 258                                 languages specified in SupportedLanguages. The
 259                                 number of languages supported by a driver is up
 260                                 to the driver writer. Language is specified in
 261                                 RFC 4646 or ISO 639-2 language code format.
 262
 263   @param  ControllerName[out]   A pointer to the Unicode string to return.
 264                                 This Unicode string is the name of the
 265                                 controller specified by ControllerHandle and
 266                                 ChildHandle in the language specified by
 267                                 Language from the point of view of the driver
 268                                 specified by This.
 269
 270   @retval EFI_SUCCESS           The Unicode string for the user readable name in
 271                                 the language specified by Language for the
 272                                 driver specified by This was returned in
 273                                 DriverName.
 274
 275   @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
 276
 277   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
 278                                 EFI_HANDLE.
 279
 280   @retval EFI_INVALID_PARAMETER Language is NULL.
 281
 282   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
 283
 284   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
 285                                 managing the controller specified by
 286                                 ControllerHandle and ChildHandle.
 287
 288   @retval EFI_UNSUPPORTED       The driver specified by This does not support
 289                                 the language specified by Language.
 290
 291 **/
 292 EFI_STATUS
 293 EFIAPI
 294 EmuBlockIoComponentNameGetControllerName (
 295   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
 296   IN  EFI_HANDLE                   ControllerHandle,
 297   IN  EFI_HANDLE                   ChildHandle        OPTIONAL,
 298   IN  CHAR8                        *Language,
 299   OUT CHAR16                       **ControllerName
 300   )
 301 {
 302   EFI_STATUS             Status;
 303   EFI_BLOCK_IO_PROTOCOL  *BlockIo;
 304   EMU_BLOCK_IO_PRIVATE   *Private;
 305
 306   //
 307   // This is a device driver, so ChildHandle must be NULL.
 308   //
 309   if (ChildHandle != NULL) {
 310     return EFI_UNSUPPORTED;
 311   }
 312
 313   //
 314   // Make sure this driver is currently managing ControllerHandle
 315   //
 316   Status = EfiTestManagedDevice (
 317              ControllerHandle,
 318              gEmuBlockIoDriverBinding.DriverBindingHandle,
 319              &gEmuIoThunkProtocolGuid
 320              );
 321   if (EFI_ERROR (Status)) {
 322     return EFI_UNSUPPORTED;
 323   }
 324
 325   //
 326   // Get our context back
 327   //
 328   Status = gBS->OpenProtocol (
 329                   ControllerHandle,
 330                   &gEfiBlockIoProtocolGuid,
 331                   (VOID  **)&BlockIo,
 332                   gEmuBlockIoDriverBinding.DriverBindingHandle,
 333                   ControllerHandle,
 334                   EFI_OPEN_PROTOCOL_GET_PROTOCOL
 335                   );
 336   if (EFI_ERROR (Status)) {
 337     return EFI_UNSUPPORTED;
 338   }
 339
 340   Private = EMU_BLOCK_IO_PRIVATE_DATA_FROM_THIS (BlockIo);
 341
 342   return LookupUnicodeString2 (
 343            Language,
 344            This->SupportedLanguages,
 345            Private->ControllerNameTable,
 346            ControllerName,
 347            (BOOLEAN)(This == &gEmuBlockIoComponentName)
 348            );
 349 }