MdeModulePkg/Bus/Ata/AtaAtapiPassThru/ComponentName.c

   1 /** @file
   2   UEFI Component Name(2) protocol implementation for AtaAtapiPassThru driver.
   3
   4   Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
   5   SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #include "AtaAtapiPassThru.h"
  10
  11 //
  12 // Driver name table
  13 //
  14 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mAtaAtapiPassThruDriverNameTable[] = {
  15   { "eng;en", L"AtaAtapiPassThru Driver" },
  16   { NULL , NULL }
  17 };
  18
  19 //
  20 // Controller name table
  21 //
  22 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mAtaAtapiPassThruIdeControllerNameTable[] = {
  23   { "eng;en", L"IDE Controller" },
  24   { NULL , NULL }
  25 };
  26
  27 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mAtaAtapiPassThruAhciControllerNameTable[] = {
  28   { "eng;en", L"AHCI Controller" },
  29   { NULL , NULL }
  30 };
  31
  32 //
  33 // EFI Component Name Protocol
  34 //
  35 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL  gAtaAtapiPassThruComponentName = {
  36   AtaAtapiPassThruComponentNameGetDriverName,
  37   AtaAtapiPassThruComponentNameGetControllerName,
  38   "eng"
  39 };
  40
  41 //
  42 // EFI Component Name 2 Protocol
  43 //
  44 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gAtaAtapiPassThruComponentName2 = {
  45   (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) AtaAtapiPassThruComponentNameGetDriverName,
  46   (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) AtaAtapiPassThruComponentNameGetControllerName,
  47   "en"
  48 };
  49
  50 /**
  51   Retrieves a Unicode string that is the user readable name of the driver.
  52
  53   This function retrieves the user readable name of a driver in the form of a
  54   Unicode string. If the driver specified by This has a user readable name in
  55   the language specified by Language, then a pointer to the driver name is
  56   returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
  57   by This does not support the language specified by Language,
  58   then EFI_UNSUPPORTED is returned.
  59
  60   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
  61                                 EFI_COMPONENT_NAME_PROTOCOL instance.
  62
  63   @param  Language[in]          A pointer to a Null-terminated ASCII string
  64                                 array indicating the language. This is the
  65                                 language of the driver name that the caller is
  66                                 requesting, and it must match one of the
  67                                 languages specified in SupportedLanguages. The
  68                                 number of languages supported by a driver is up
  69                                 to the driver writer. Language is specified
  70                                 in RFC 4646 or ISO 639-2 language code format.
  71
  72   @param  DriverName[out]       A pointer to the Unicode string to return.
  73                                 This Unicode string is the name of the
  74                                 driver specified by This in the language
  75                                 specified by Language.
  76
  77   @retval EFI_SUCCESS           The Unicode string for the Driver specified by
  78                                 This and the language specified by Language was
  79                                 returned in DriverName.
  80
  81   @retval EFI_INVALID_PARAMETER Language is NULL.
  82
  83   @retval EFI_INVALID_PARAMETER DriverName is NULL.
  84
  85   @retval EFI_UNSUPPORTED       The driver specified by This does not support
  86                                 the language specified by Language.
  87
  88 **/
  89 EFI_STATUS
  90 EFIAPI
  91 AtaAtapiPassThruComponentNameGetDriverName (
  92   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
  93   IN  CHAR8                        *Language,
  94   OUT CHAR16                       **DriverName
  95   )
  96 {
  97   return LookupUnicodeString2 (
  98            Language,
  99            This->SupportedLanguages,
 100            mAtaAtapiPassThruDriverNameTable,
 101            DriverName,
 102            (BOOLEAN)(This == &gAtaAtapiPassThruComponentName)
 103            );
 104 }
 105
 106
 107 /**
 108   Retrieves a Unicode string that is the user readable name of the controller
 109   that is being managed by a driver.
 110
 111   This function retrieves the user readable name of the controller specified by
 112   ControllerHandle and ChildHandle in the form of a Unicode string. If the
 113   driver specified by This has a user readable name in the language specified by
 114   Language, then a pointer to the controller name is returned in ControllerName,
 115   and EFI_SUCCESS is returned.  If the driver specified by This is not currently
 116   managing the controller specified by ControllerHandle and ChildHandle,
 117   then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
 118   support the language specified by Language, then EFI_UNSUPPORTED is returned.
 119
 120   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
 121                                 EFI_COMPONENT_NAME_PROTOCOL instance.
 122
 123   @param  ControllerHandle[in]  The handle of a controller that the driver
 124                                 specified by This is managing.  This handle
 125                                 specifies the controller whose name is to be
 126                                 returned.
 127
 128   @param  ChildHandle[in]       The handle of the child controller to retrieve
 129                                 the name of.  This is an optional parameter that
 130                                 may be NULL.  It will be NULL for device
 131                                 drivers.  It will also be NULL for a bus drivers
 132                                 that wish to retrieve the name of the bus
 133                                 controller.  It will not be NULL for a bus
 134                                 driver that wishes to retrieve the name of a
 135                                 child controller.
 136
 137   @param  Language[in]          A pointer to a Null-terminated ASCII string
 138                                 array indicating the language.  This is the
 139                                 language of the driver name that the caller is
 140                                 requesting, and it must match one of the
 141                                 languages specified in SupportedLanguages. The
 142                                 number of languages supported by a driver is up
 143                                 to the driver writer. Language is specified in
 144                                 RFC 4646 or ISO 639-2 language code format.
 145
 146   @param  ControllerName[out]   A pointer to the Unicode string to return.
 147                                 This Unicode string is the name of the
 148                                 controller specified by ControllerHandle and
 149                                 ChildHandle in the language specified by
 150                                 Language from the point of view of the driver
 151                                 specified by This.
 152
 153   @retval EFI_SUCCESS           The Unicode string for the user readable name in
 154                                 the language specified by Language for the
 155                                 driver specified by This was returned in
 156                                 DriverName.
 157
 158   @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
 159
 160   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
 161                                 EFI_HANDLE.
 162
 163   @retval EFI_INVALID_PARAMETER Language is NULL.
 164
 165   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
 166
 167   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
 168                                 managing the controller specified by
 169                                 ControllerHandle and ChildHandle.
 170
 171   @retval EFI_UNSUPPORTED       The driver specified by This does not support
 172                                 the language specified by Language.
 173
 174 **/
 175 EFI_STATUS
 176 EFIAPI
 177 AtaAtapiPassThruComponentNameGetControllerName (
 178   IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
 179   IN  EFI_HANDLE                                      ControllerHandle,
 180   IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
 181   IN  CHAR8                                           *Language,
 182   OUT CHAR16                                          **ControllerName
 183   )
 184 {
 185   EFI_STATUS                    Status;
 186   EFI_UNICODE_STRING_TABLE      *ControllerNameTable;
 187   VOID                          *Interface;
 188   ATA_ATAPI_PASS_THRU_INSTANCE  *Instance;
 189
 190   if (Language == NULL || ControllerName == NULL) {
 191     return EFI_INVALID_PARAMETER;
 192   }
 193
 194   //
 195   // This is a device driver, so ChildHandle must be NULL.
 196   //
 197   if (ChildHandle != NULL) {
 198     return EFI_UNSUPPORTED;
 199   }
 200
 201   //
 202   // Make sure this driver is currently managing Controller Handle
 203   //
 204   Status = EfiTestManagedDevice (
 205              ControllerHandle,
 206              gAtaAtapiPassThruDriverBinding.DriverBindingHandle,
 207              &gEfiIdeControllerInitProtocolGuid
 208              );
 209   if (EFI_ERROR (Status)) {
 210     return Status;
 211   }
 212
 213   //
 214   // AtaPassThru and ExtScsiPassThru should also be installed at the controller handle.
 215   //
 216   Status = gBS->OpenProtocol (
 217                   ControllerHandle,
 218                   &gEfiAtaPassThruProtocolGuid,
 219                   &Interface,
 220                   gAtaAtapiPassThruDriverBinding.DriverBindingHandle,
 221                   ControllerHandle,
 222                   EFI_OPEN_PROTOCOL_GET_PROTOCOL
 223                   );
 224   if (EFI_ERROR (Status)) {
 225     return EFI_UNSUPPORTED;
 226   }
 227
 228   Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (Interface);
 229
 230   if (Instance->Mode == EfiAtaIdeMode) {
 231     ControllerNameTable = mAtaAtapiPassThruIdeControllerNameTable;
 232   } else if (Instance->Mode == EfiAtaAhciMode) {
 233     ControllerNameTable = mAtaAtapiPassThruAhciControllerNameTable;
 234   } else {
 235     return EFI_UNSUPPORTED;
 236   }
 237
 238   return LookupUnicodeString2 (
 239            Language,
 240            This->SupportedLanguages,
 241            ControllerNameTable,
 242            ControllerName,
 243            (BOOLEAN)(This == &gAtaAtapiPassThruComponentName)
 244            );
 245 }