MdeModulePkg/Library/ExtendedHiiLib/ExtendedHiiLib.c

   1 /** @file
   2   HII Library implementation that uses DXE protocols and services.
   3
   4   Copyright (c) 2006, Intel Corporation<BR>
   5   All rights reserved. This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15
  16 #include <PiDxe.h>
  17
  18 #include <Protocol/DevicePath.h>
  19
  20 #include <Library/BaseMemoryLib.h>
  21 #include <Library/DebugLib.h>
  22 #include <Library/MemoryAllocationLib.h>
  23 #include <Library/UefiBootServicesTableLib.h>
  24 #include <MdeModuleHii.h>
  25
  26
  27 //
  28 // Hii vendor device path template
  29 //
  30 HII_VENDOR_DEVICE_PATH  mHiiVendorDevicePathTemplate = {
  31   {
  32     {
  33       {
  34         HARDWARE_DEVICE_PATH,
  35         HW_VENDOR_DP,
  36         {
  37           (UINT8) (sizeof (HII_VENDOR_DEVICE_PATH_NODE)),
  38           (UINT8) ((sizeof (HII_VENDOR_DEVICE_PATH_NODE)) >> 8)
  39         }
  40       },
  41       EFI_IFR_TIANO_GUID
  42     },
  43     0
  44   },
  45   {
  46     END_DEVICE_PATH_TYPE,
  47     END_ENTIRE_DEVICE_PATH_SUBTYPE,
  48     {
  49       END_DEVICE_PATH_LENGTH
  50     }
  51   }
  52 };
  53
  54
  55 EFI_STATUS
  56 EFIAPI
  57 HiiLibCreateHiiDriverHandle (
  58   OUT EFI_HANDLE               *DriverHandle
  59   )
  60 {
  61   EFI_STATUS                   Status;
  62   HII_VENDOR_DEVICE_PATH_NODE  *VendorDevicePath;
  63   UINT64                       MonotonicCount;
  64
  65   VendorDevicePath = AllocateCopyPool (sizeof (HII_VENDOR_DEVICE_PATH), &mHiiVendorDevicePathTemplate);
  66   if (VendorDevicePath == NULL) {
  67     return EFI_OUT_OF_RESOURCES;
  68   }
  69
  70   gBS->GetNextMonotonicCount (&MonotonicCount);
  71   VendorDevicePath->MonotonicCount = (UINT32) MonotonicCount;
  72
  73   *DriverHandle = NULL;
  74   Status = gBS->InstallProtocolInterface (
  75                   DriverHandle,
  76                   &gEfiDevicePathProtocolGuid,
  77                   EFI_NATIVE_INTERFACE,
  78                   VendorDevicePath
  79                   );
  80   if (EFI_ERROR (Status)) {
  81     return Status;
  82   }
  83
  84   return EFI_SUCCESS;
  85 }
  86
  87
  88 VOID
  89 EFIAPI
  90 HiiLibDestroyHiiDriverHandle (
  91   IN EFI_HANDLE               DriverHandle
  92   )
  93 {
  94   EFI_STATUS                   Status;
  95   EFI_DEVICE_PATH_PROTOCOL     *DevicePath;
  96
  97   Status = gBS->HandleProtocol (
  98                   DriverHandle,
  99                   &gEfiDevicePathProtocolGuid,
 100                   (VOID **) &DevicePath
 101                   );
 102   ASSERT_EFI_ERROR (Status);
 103
 104   Status = gBS->UninstallProtocolInterface (
 105                   DriverHandle,
 106                   &gEfiDevicePathProtocolGuid,
 107                   DevicePath
 108                   );
 109   ASSERT_EFI_ERROR (Status);
 110
 111   FreePool (DevicePath);
 112
 113 }
 114
 115
 116