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      1 /** @file
      2   Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
      3   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 4646 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 4646 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 NULL.
    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_STATUS                      Status;
    179 
    180   //
    181   // This is a device driver, so ChildHandle must be NULL.
    182   //
    183   if (ChildHandle != NULL) {
    184     return EFI_UNSUPPORTED;
    185   }
    186 
    187   //
    188   // Make sure this driver is currently managing ControllHandle
    189   //
    190   Status = EfiTestManagedDevice (
    191              ControllerHandle,
    192              gCirrusLogic5430DriverBinding.DriverBindingHandle,
    193              &gEfiPciIoProtocolGuid
    194              );
    195   if (EFI_ERROR (Status)) {
    196     return Status;
    197   }
    198 
    199   //
    200   // Get the Cirrus Logic 5430's Device structure
    201   //
    202   return LookupUnicodeString2 (
    203            Language,
    204            This->SupportedLanguages,
    205            mCirrusLogic5430ControllerNameTable,
    206            ControllerName,
    207            (BOOLEAN)(This == &gCirrusLogic5430ComponentName)
    208            );
    209 }
    210