OptionRomPkg/CirrusLogic5430Dxe/ComponentName.c

   1 /** @file
   2   Copyright (c) 2006, Intel Corporation
   3   All rights reserved. This program and the accompanying materials
   4   are licensed and made available under the terms and conditions of the BSD License
   5   which accompanies this distribution.  The full text of the license may be found at
   6   http://opensource.org/licenses/bsd-license.php
   7
   8   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
   9   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  10
  11 **/
  12
  13 #include "CirrusLogic5430.h"
  14
  15 //
  16 // EFI Component Name Protocol
  17 //
  18 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL  gCirrusLogic5430ComponentName = {
  19   CirrusLogic5430ComponentNameGetDriverName,
  20   CirrusLogic5430ComponentNameGetControllerName,
  21   "eng"
  22 };
  23
  24 //
  25 // EFI Component Name 2 Protocol
  26 //
  27 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gCirrusLogic5430ComponentName2 = {
  28   (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) CirrusLogic5430ComponentNameGetDriverName,
  29   (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) CirrusLogic5430ComponentNameGetControllerName,
  30   "en"
  31 };
  32
  33
  34 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mCirrusLogic5430DriverNameTable[] = {
  35   { "eng;en", L"Cirrus Logic 5430 Driver" },
  36   { NULL , NULL }
  37 };
  38
  39 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mCirrusLogic5430ControllerNameTable[] = {
  40   { "eng;en", L"Cirrus Logic 5430 PCI Adapter" },
  41   { NULL , NULL }
  42 };
  43
  44 /**
  45   Retrieves a Unicode string that is the user readable name of the driver.
  46
  47   This function retrieves the user readable name of a driver in the form of a
  48   Unicode string. If the driver specified by This has a user readable name in
  49   the language specified by Language, then a pointer to the driver name is
  50   returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
  51   by This does not support the language specified by Language,
  52   then EFI_UNSUPPORTED is returned.
  53
  54   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
  55                                 EFI_COMPONENT_NAME_PROTOCOL instance.
  56
  57   @param  Language[in]          A pointer to a Null-terminated ASCII string
  58                                 array indicating the language. This is the
  59                                 language of the driver name that the caller is
  60                                 requesting, and it must match one of the
  61                                 languages specified in SupportedLanguages. The
  62                                 number of languages supported by a driver is up
  63                                 to the driver writer. Language is specified
  64                                 in RFC 3066 or ISO 639-2 language code format.
  65
  66   @param  DriverName[out]       A pointer to the Unicode string to return.
  67                                 This Unicode string is the name of the
  68                                 driver specified by This in the language
  69                                 specified by Language.
  70
  71   @retval EFI_SUCCESS           The Unicode string for the Driver specified by
  72                                 This and the language specified by Language was
  73                                 returned in DriverName.
  74
  75   @retval EFI_INVALID_PARAMETER Language is NULL.
  76
  77   @retval EFI_INVALID_PARAMETER DriverName is NULL.
  78
  79   @retval EFI_UNSUPPORTED       The driver specified by This does not support
  80                                 the language specified by Language.
  81
  82 **/
  83 EFI_STATUS
  84 EFIAPI
  85 CirrusLogic5430ComponentNameGetDriverName (
  86   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
  87   IN  CHAR8                        *Language,
  88   OUT CHAR16                       **DriverName
  89   )
  90 {
  91   return LookupUnicodeString2 (
  92            Language,
  93            This->SupportedLanguages,
  94            mCirrusLogic5430DriverNameTable,
  95            DriverName,
  96            (BOOLEAN)(This == &gCirrusLogic5430ComponentName)
  97            );
  98 }
  99
 100 /**
 101   Retrieves a Unicode string that is the user readable name of the controller
 102   that is being managed by a driver.
 103
 104   This function retrieves the user readable name of the controller specified by
 105   ControllerHandle and ChildHandle in the form of a Unicode string. If the
 106   driver specified by This has a user readable name in the language specified by
 107   Language, then a pointer to the controller name is returned in ControllerName,
 108   and EFI_SUCCESS is returned.  If the driver specified by This is not currently
 109   managing the controller specified by ControllerHandle and ChildHandle,
 110   then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
 111   support the language specified by Language, then EFI_UNSUPPORTED is returned.
 112
 113   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
 114                                 EFI_COMPONENT_NAME_PROTOCOL instance.
 115
 116   @param  ControllerHandle[in]  The handle of a controller that the driver
 117                                 specified by This is managing.  This handle
 118                                 specifies the controller whose name is to be
 119                                 returned.
 120
 121   @param  ChildHandle[in]       The handle of the child controller to retrieve
 122                                 the name of.  This is an optional parameter that
 123                                 may be NULL.  It will be NULL for device
 124                                 drivers.  It will also be NULL for a bus drivers
 125                                 that wish to retrieve the name of the bus
 126                                 controller.  It will not be NULL for a bus
 127                                 driver that wishes to retrieve the name of a
 128                                 child controller.
 129
 130   @param  Language[in]          A pointer to a Null-terminated ASCII string
 131                                 array indicating the language.  This is the
 132                                 language of the driver name that the caller is
 133                                 requesting, and it must match one of the
 134                                 languages specified in SupportedLanguages. The
 135                                 number of languages supported by a driver is up
 136                                 to the driver writer. Language is specified in
 137                                 RFC 3066 or ISO 639-2 language code format.
 138
 139   @param  ControllerName[out]   A pointer to the Unicode string to return.
 140                                 This Unicode string is the name of the
 141                                 controller specified by ControllerHandle and
 142                                 ChildHandle in the language specified by
 143                                 Language from the point of view of the driver
 144                                 specified by This.
 145
 146   @retval EFI_SUCCESS           The Unicode string for the user readable name in
 147                                 the language specified by Language for the
 148                                 driver specified by This was returned in
 149                                 DriverName.
 150
 151   @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
 152
 153   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
 154                                 EFI_HANDLE.
 155
 156   @retval EFI_INVALID_PARAMETER Language is NULL.
 157
 158   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
 159
 160   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
 161                                 managing the controller specified by
 162                                 ControllerHandle and ChildHandle.
 163
 164   @retval EFI_UNSUPPORTED       The driver specified by This does not support
 165                                 the language specified by Language.
 166
 167 **/
 168 EFI_STATUS
 169 EFIAPI
 170 CirrusLogic5430ComponentNameGetControllerName (
 171   IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
 172   IN  EFI_HANDLE                                      ControllerHandle,
 173   IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
 174   IN  CHAR8                                           *Language,
 175   OUT CHAR16                                          **ControllerName
 176   )
 177 {
 178   EFI_UGA_DRAW_PROTOCOL           *UgaDraw;
 179   EFI_STATUS                      Status;
 180   EFI_PCI_IO_PROTOCOL             *PciIoProtocol;
 181
 182   //
 183   // This is a device driver, so ChildHandle must be NULL.
 184   //
 185   if (ChildHandle != NULL) {
 186     return EFI_UNSUPPORTED;
 187   }
 188
 189   //
 190   // Check Controller's handle
 191   //
 192   Status = gBS->OpenProtocol (
 193                   ControllerHandle,
 194                   &gEfiPciIoProtocolGuid,
 195                   (VOID **) &PciIoProtocol,
 196                   gCirrusLogic5430DriverBinding.DriverBindingHandle,
 197                   ControllerHandle,
 198                   EFI_OPEN_PROTOCOL_BY_DRIVER
 199                   );
 200   if (!EFI_ERROR (Status)) {
 201     gBS->CloseProtocol (
 202           ControllerHandle,
 203           &gEfiPciIoProtocolGuid,
 204           gCirrusLogic5430DriverBinding.DriverBindingHandle,
 205           ControllerHandle
 206           );
 207
 208     return EFI_UNSUPPORTED;
 209   }
 210
 211   if (Status != EFI_ALREADY_STARTED) {
 212     return EFI_UNSUPPORTED;
 213   }
 214
 215   //
 216   // Get the UGA Draw Protocol on Controller
 217   //
 218   Status = gBS->OpenProtocol (
 219                   ControllerHandle,
 220                   &gEfiUgaDrawProtocolGuid,
 221                   (VOID **) &UgaDraw,
 222                   gCirrusLogic5430DriverBinding.DriverBindingHandle,
 223                   ControllerHandle,
 224                   EFI_OPEN_PROTOCOL_GET_PROTOCOL
 225                   );
 226   if (EFI_ERROR (Status)) {
 227     return Status;
 228   }
 229
 230   //
 231   // Get the Cirrus Logic 5430's Device structure
 232   //
 233   return LookupUnicodeString2 (
 234            Language,
 235            This->SupportedLanguages,
 236            mCirrusLogic5430ControllerNameTable,
 237            ControllerName,
 238            (BOOLEAN)(This == &gCirrusLogic5430ComponentName)
 239            );
 240 }