SecurityPkg/Tcg/Opal/OpalPassword/OpalHiiCallbacks.c

   1 /** @file
   2   Callbacks required by the HII of the Opal UEFI Driver to help display
   3   Opal device information.
   4
   5 Copyright (c) 2016 - 2018, Intel Corporation. All rights reserved.<BR>
   6 This program and the accompanying materials
   7 are licensed and made available under the terms and conditions of the BSD License
   8 which accompanies this distribution.  The full text of the license may be found at
   9 http://opensource.org/licenses/bsd-license.php
  10
  11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13
  14 **/
  15
  16 #include "OpalHii.h"
  17
  18 /**
  19   Get the driver image handle.
  20
  21   @retval  the driver image handle.
  22
  23 **/
  24 EFI_HANDLE
  25 HiiGetDriverImageHandleCB(
  26   VOID
  27   )
  28 {
  29   return gImageHandle;
  30 }
  31
  32 /**
  33   Returns the opaque pointer to a physical disk context.
  34
  35   @param  DiskIndex       Input the disk index.
  36
  37   @retval The device pointer.
  38
  39 **/
  40 VOID *
  41 HiiGetDiskContextCB(
  42   UINT8 DiskIndex
  43   )
  44 {
  45   OPAL_DRIVER_DEVICE*                Dev;
  46   UINT8                              CurrentDisk;
  47
  48   Dev = OpalDriverGetDeviceList();
  49   CurrentDisk = 0;
  50
  51   if (DiskIndex >= GetDeviceCount()) {
  52     return NULL;
  53   }
  54
  55   while (Dev != NULL) {
  56     if (CurrentDisk == DiskIndex) {
  57       return Dev;
  58     } else {
  59       Dev = Dev->Next;
  60       CurrentDisk++;
  61     }
  62   }
  63
  64   return NULL;
  65 }
  66
  67 /**
  68   Returns the opaque pointer to a physical disk context.
  69
  70   @param  DiskIndex       Input the disk index.
  71
  72   @retval The device pointer.
  73
  74 **/
  75 OPAL_DISK*
  76 HiiGetOpalDiskCB(
  77   UINT8 DiskIndex
  78   )
  79 {
  80   VOID                           *Ctx;
  81   OPAL_DRIVER_DEVICE             *Tmp;
  82
  83   Ctx = HiiGetDiskContextCB (DiskIndex);
  84
  85   if (Ctx == NULL) {
  86     return NULL;
  87   }
  88
  89   Tmp = (OPAL_DRIVER_DEVICE*) Ctx;
  90
  91   return &Tmp->OpalDisk;
  92 }
  93
  94 /**
  95   Returns the disk name.
  96
  97   @param  DiskIndex       Input the disk index.
  98
  99   @retval Returns the disk name.
 100
 101 **/
 102 CHAR8*
 103 HiiDiskGetNameCB(
 104   UINT8 DiskIndex
 105   )
 106 {
 107   OPAL_DRIVER_DEVICE*                Ctx;
 108
 109   Ctx = (OPAL_DRIVER_DEVICE*) HiiGetDiskContextCB (DiskIndex);
 110
 111   if (Ctx != NULL) {
 112     if (Ctx->NameZ == NULL) {
 113       OpalDriverGetDriverDeviceName (Ctx);
 114     }
 115     return Ctx->NameZ;
 116   }
 117   return NULL;
 118 }
 119
 120 /**
 121   Returns the driver name.
 122
 123   @retval Returns the driver name.
 124
 125 **/
 126 CHAR16*
 127 HiiGetDriverNameCB(
 128   VOID
 129   )
 130 {
 131   return (CHAR16*)EFI_DRIVER_NAME_UNICODE;
 132 }