Nt32Pkg/WinNtBlockIoDxe/ComponentName.c

   1 /**@file
   2
   3 Copyright (c) 2006, Intel Corporation
   4 All rights reserved. This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this 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 Module Name:
  13
  14   ComponentName.c
  15
  16 Abstract:
  17
  18 **/
  19 #include <Uefi.h>
  20 #include <WinNtDxe.h>
  21 #include <Protocol/ComponentName.h>
  22 #include <Protocol/DriverBinding.h>
  23
  24 #include "WinNtBlockIo.h"
  25
  26 //
  27 // EFI Component Name Functions
  28 //
  29 /**
  30   Retrieves a Unicode string that is the user readable name of the driver.
  31
  32   This function retrieves the user readable name of a driver in the form of a
  33   Unicode string. If the driver specified by This has a user readable name in
  34   the language specified by Language, then a pointer to the driver name is
  35   returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
  36   by This does not support the language specified by Language,
  37   then EFI_UNSUPPORTED is returned.
  38
  39   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
  40                                 EFI_COMPONENT_NAME_PROTOCOL instance.
  41
  42   @param  Language[in]          A pointer to a Null-terminated ASCII string
  43                                 array indicating the language. This is the
  44                                 language of the driver name that the caller is
  45                                 requesting, and it must match one of the
  46                                 languages specified in SupportedLanguages. The
  47                                 number of languages supported by a driver is up
  48                                 to the driver writer. Language is specified
  49                                 in RFC 4646 or ISO 639-2 language code format.
  50
  51   @param  DriverName[out]       A pointer to the Unicode string to return.
  52                                 This Unicode string is the name of the
  53                                 driver specified by This in the language
  54                                 specified by Language.
  55
  56   @retval EFI_SUCCESS           The Unicode string for the Driver specified by
  57                                 This and the language specified by Language was
  58                                 returned in DriverName.
  59
  60   @retval EFI_INVALID_PARAMETER Language is NULL.
  61
  62   @retval EFI_INVALID_PARAMETER DriverName is NULL.
  63
  64   @retval EFI_UNSUPPORTED       The driver specified by This does not support
  65                                 the language specified by Language.
  66
  67 **/
  68 EFI_STATUS
  69 EFIAPI
  70 WinNtBlockIoComponentNameGetDriverName (
  71   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
  72   IN  CHAR8                        *Language,
  73   OUT CHAR16                       **DriverName
  74   );
  75
  76
  77 /**
  78   Retrieves a Unicode string that is the user readable name of the controller
  79   that is being managed by a driver.
  80
  81   This function retrieves the user readable name of the controller specified by
  82   ControllerHandle and ChildHandle in the form of a Unicode string. If the
  83   driver specified by This has a user readable name in the language specified by
  84   Language, then a pointer to the controller name is returned in ControllerName,
  85   and EFI_SUCCESS is returned.  If the driver specified by This is not currently
  86   managing the controller specified by ControllerHandle and ChildHandle,
  87   then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
  88   support the language specified by Language, then EFI_UNSUPPORTED is returned.
  89
  90   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
  91                                 EFI_COMPONENT_NAME_PROTOCOL instance.
  92
  93   @param  ControllerHandle[in]  The handle of a controller that the driver
  94                                 specified by This is managing.  This handle
  95                                 specifies the controller whose name is to be
  96                                 returned.
  97
  98   @param  ChildHandle[in]       The handle of the child controller to retrieve
  99                                 the name of.  This is an optional parameter that
 100                                 may be NULL.  It will be NULL for device
 101                                 drivers.  It will also be NULL for a bus drivers
 102                                 that wish to retrieve the name of the bus
 103                                 controller.  It will not be NULL for a bus
 104                                 driver that wishes to retrieve the name of a
 105                                 child controller.
 106
 107   @param  Language[in]          A pointer to a Null-terminated ASCII string
 108                                 array indicating the language.  This is the
 109                                 language of the driver name that the caller is
 110                                 requesting, and it must match one of the
 111                                 languages specified in SupportedLanguages. The
 112                                 number of languages supported by a driver is up
 113                                 to the driver writer. Language is specified in
 114                                 RFC 4646 or ISO 639-2 language code format.
 115
 116   @param  ControllerName[out]   A pointer to the Unicode string to return.
 117                                 This Unicode string is the name of the
 118                                 controller specified by ControllerHandle and
 119                                 ChildHandle in the language specified by
 120                                 Language from the point of view of the driver
 121                                 specified by This.
 122
 123   @retval EFI_SUCCESS           The Unicode string for the user readable name in
 124                                 the language specified by Language for the
 125                                 driver specified by This was returned in
 126                                 DriverName.
 127
 128   @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
 129
 130   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
 131                                 EFI_HANDLE.
 132
 133   @retval EFI_INVALID_PARAMETER Language is NULL.
 134
 135   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
 136
 137   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
 138                                 managing the controller specified by
 139                                 ControllerHandle and ChildHandle.
 140
 141   @retval EFI_UNSUPPORTED       The driver specified by This does not support
 142                                 the language specified by Language.
 143
 144 **/
 145 EFI_STATUS
 146 EFIAPI
 147 WinNtBlockIoComponentNameGetControllerName (
 148   IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
 149   IN  EFI_HANDLE                                      ControllerHandle,
 150   IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
 151   IN  CHAR8                                           *Language,
 152   OUT CHAR16                                          **ControllerName
 153   );
 154
 155
 156 //
 157 // EFI Component Name Protocol
 158 //
 159 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL  gWinNtBlockIoComponentName = {
 160   WinNtBlockIoComponentNameGetDriverName,
 161   WinNtBlockIoComponentNameGetControllerName,
 162   "eng"
 163 };
 164
 165 //
 166 // EFI Component Name 2 Protocol
 167 //
 168 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gWinNtBlockIoComponentName2 = {
 169   (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) WinNtBlockIoComponentNameGetDriverName,
 170   (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) WinNtBlockIoComponentNameGetControllerName,
 171   "en"
 172 };
 173
 174
 175 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mWinNtBlockIoDriverNameTable[] = {
 176   { "eng;en", L"Windows Block I/O Driver" },
 177   { NULL , NULL }
 178 };
 179
 180 /**
 181   Retrieves a Unicode string that is the user readable name of the driver.
 182
 183   This function retrieves the user readable name of a driver in the form of a
 184   Unicode string. If the driver specified by This has a user readable name in
 185   the language specified by Language, then a pointer to the driver name is
 186   returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
 187   by This does not support the language specified by Language,
 188   then EFI_UNSUPPORTED is returned.
 189
 190   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
 191                                 EFI_COMPONENT_NAME_PROTOCOL instance.
 192
 193   @param  Language[in]          A pointer to a Null-terminated ASCII string
 194                                 array indicating the language. This is the
 195                                 language of the driver name that the caller is
 196                                 requesting, and it must match one of the
 197                                 languages specified in SupportedLanguages. The
 198                                 number of languages supported by a driver is up
 199                                 to the driver writer. Language is specified
 200                                 in RFC 4646 or ISO 639-2 language code format.
 201
 202   @param  DriverName[out]       A pointer to the Unicode string to return.
 203                                 This Unicode string is the name of the
 204                                 driver specified by This in the language
 205                                 specified by Language.
 206
 207   @retval EFI_SUCCESS           The Unicode string for the Driver specified by
 208                                 This and the language specified by Language was
 209                                 returned in DriverName.
 210
 211   @retval EFI_INVALID_PARAMETER Language is NULL.
 212
 213   @retval EFI_INVALID_PARAMETER DriverName is NULL.
 214
 215   @retval EFI_UNSUPPORTED       The driver specified by This does not support
 216                                 the language specified by Language.
 217
 218 **/
 219 EFI_STATUS
 220 EFIAPI
 221 WinNtBlockIoComponentNameGetDriverName (
 222   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
 223   IN  CHAR8                        *Language,
 224   OUT CHAR16                       **DriverName
 225   )
 226 {
 227   return LookupUnicodeString2 (
 228            Language,
 229            This->SupportedLanguages,
 230            mWinNtBlockIoDriverNameTable,
 231            DriverName,
 232            (BOOLEAN)(This == &gWinNtBlockIoComponentName)
 233            );
 234 }
 235
 236 /**
 237   Retrieves a Unicode string that is the user readable name of the controller
 238   that is being managed by a driver.
 239
 240   This function retrieves the user readable name of the controller specified by
 241   ControllerHandle and ChildHandle in the form of a Unicode string. If the
 242   driver specified by This has a user readable name in the language specified by
 243   Language, then a pointer to the controller name is returned in ControllerName,
 244   and EFI_SUCCESS is returned.  If the driver specified by This is not currently
 245   managing the controller specified by ControllerHandle and ChildHandle,
 246   then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
 247   support the language specified by Language, then EFI_UNSUPPORTED is returned.
 248
 249   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
 250                                 EFI_COMPONENT_NAME_PROTOCOL instance.
 251
 252   @param  ControllerHandle[in]  The handle of a controller that the driver
 253                                 specified by This is managing.  This handle
 254                                 specifies the controller whose name is to be
 255                                 returned.
 256
 257   @param  ChildHandle[in]       The handle of the child controller to retrieve
 258                                 the name of.  This is an optional parameter that
 259                                 may be NULL.  It will be NULL for device
 260                                 drivers.  It will also be NULL for a bus drivers
 261                                 that wish to retrieve the name of the bus
 262                                 controller.  It will not be NULL for a bus
 263                                 driver that wishes to retrieve the name of a
 264                                 child controller.
 265
 266   @param  Language[in]          A pointer to a Null-terminated ASCII string
 267                                 array indicating the language.  This is the
 268                                 language of the driver name that the caller is
 269                                 requesting, and it must match one of the
 270                                 languages specified in SupportedLanguages. The
 271                                 number of languages supported by a driver is up
 272                                 to the driver writer. Language is specified in
 273                                 RFC 4646 or ISO 639-2 language code format.
 274
 275   @param  ControllerName[out]   A pointer to the Unicode string to return.
 276                                 This Unicode string is the name of the
 277                                 controller specified by ControllerHandle and
 278                                 ChildHandle in the language specified by
 279                                 Language from the point of view of the driver
 280                                 specified by This.
 281
 282   @retval EFI_SUCCESS           The Unicode string for the user readable name in
 283                                 the language specified by Language for the
 284                                 driver specified by This was returned in
 285                                 DriverName.
 286
 287   @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
 288
 289   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
 290                                 EFI_HANDLE.
 291
 292   @retval EFI_INVALID_PARAMETER Language is NULL.
 293
 294   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
 295
 296   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
 297                                 managing the controller specified by
 298                                 ControllerHandle and ChildHandle.
 299
 300   @retval EFI_UNSUPPORTED       The driver specified by This does not support
 301                                 the language specified by Language.
 302
 303 **/
 304 EFI_STATUS
 305 EFIAPI
 306 WinNtBlockIoComponentNameGetControllerName (
 307   IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
 308   IN  EFI_HANDLE                                      ControllerHandle,
 309   IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
 310   IN  CHAR8                                           *Language,
 311   OUT CHAR16                                          **ControllerName
 312   )
 313 {
 314   EFI_STATUS              Status;
 315   EFI_BLOCK_IO_PROTOCOL   *BlockIo;
 316   WIN_NT_BLOCK_IO_PRIVATE *Private;
 317
 318   //
 319   // This is a device driver, so ChildHandle must be NULL.
 320   //
 321   if (ChildHandle != NULL) {
 322     return EFI_UNSUPPORTED;
 323   }
 324   //
 325   // Make sure this driver is currently managing ControllerHandle
 326   //
 327   Status = EfiTestManagedDevice (
 328              ControllerHandle,
 329              gWinNtBlockIoDriverBinding.DriverBindingHandle,
 330              &gEfiWinNtIoProtocolGuid
 331              );
 332   if (EFI_ERROR (Status)) {
 333     return EFI_UNSUPPORTED;
 334   }
 335   //
 336   // Get our context back
 337   //
 338   Status = gBS->OpenProtocol (
 339                   ControllerHandle,
 340                   &gEfiBlockIoProtocolGuid,
 341                   (VOID **) &BlockIo,
 342                   gWinNtBlockIoDriverBinding.DriverBindingHandle,
 343                   ControllerHandle,
 344                   EFI_OPEN_PROTOCOL_GET_PROTOCOL
 345                   );
 346   if (EFI_ERROR (Status)) {
 347     return EFI_UNSUPPORTED;
 348   }
 349
 350   Private = WIN_NT_BLOCK_IO_PRIVATE_DATA_FROM_THIS (BlockIo);
 351
 352   return LookupUnicodeString2 (
 353            Language,
 354            This->SupportedLanguages,
 355            Private->ControllerNameTable,
 356            ControllerName,
 357            (BOOLEAN)(This == &gWinNtBlockIoComponentName)
 358            );
 359 }