UEFI HII: Merge UEFI HII support changes from branch.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4599 6f19259b-4bc3-4df7-8a09-765794883524
2008-01-21 14:39:56 +00:00
parent f79314fa8f
commit 93e3992d1e
139 changed files with 59162 additions and 382 deletions
--- a/MdeModulePkg/Library/GenericBdsLib/R8Lib.c
+++ b/MdeModulePkg/Library/GenericBdsLib/R8Lib.c
@@ -0,0 +1,114 @@
+/**@file
+  Copyright (c) 2007, Intel Corporation
+
+  All rights reserved. This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which accompanies this distribution.  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+
+**/
+
+#include "InternalBdsLib.h"
+
+/**
+  Get current boot mode.
+
+  @param  HobStart               Start pointer of hob list
+  @param  BootMode               Current boot mode recorded in PHIT hob
+
+  @retval EFI_NOT_FOUND          Invalid hob header
+  @retval EFI_SUCCESS            Boot mode found
+
+**/
+EFI_STATUS
+R8_GetHobBootMode (
+  IN  VOID           *HobStart,
+  OUT EFI_BOOT_MODE  *BootMode
+  )
+{
+  //
+  // Porting Guide:
+  // This library interface is simply obsolete.
+  // Include the source code to user code.
+  // In fact, since EFI_HANDOFF_HOB must be the first Hob,
+  // the following code can retrieve boot mode.
+  //
+  // EFI_HOB_HANDOFF_INFO_TABLE *HandOffHob;
+  //
+  // HandOffHob = GetHobList ();
+  // ASSERT (HandOffHob->Header.HobType == EFI_HOB_TYPE_HANDOFF);
+  //
+  // BootMode = HandOffHob->BootMode;
+  //
+  EFI_PEI_HOB_POINTERS  Hob;
+
+  Hob.Raw = HobStart;
+  if (Hob.Header->HobType != EFI_HOB_TYPE_HANDOFF) {
+    return EFI_NOT_FOUND;
+  }
+
+  *BootMode = Hob.HandoffInformationTable->BootMode;
+  return EFI_SUCCESS;
+}
+
+
+
+
+/**
+  Get the next guid hob.
+
+  @param  HobStart               A pointer to the start hob.
+  @param  Guid                   A pointer to a guid.
+  @param  Buffer                 A pointer to the buffer.
+  @param  BufferSize             Buffer size.
+
+  @retval EFI_NOT_FOUND          Next Guid hob not found
+  @retval EFI_SUCCESS            Next Guid hob found and data for this Guid got
+  @retval EFI_INVALID_PARAMETER  invalid parameter
+
+**/
+EFI_STATUS
+R8_GetNextGuidHob (
+  IN OUT VOID      **HobStart,
+  IN     EFI_GUID  * Guid,
+  OUT    VOID      **Buffer,
+  OUT    UINTN     *BufferSize OPTIONAL
+  )
+{
+  //
+  // Porting Guide:
+  // This library interface is changed substantially with R9 counerpart GetNextGuidHob ().
+  // 1. R9 GetNextGuidHob has two parameters and returns the matched GUID HOB from the StartHob.
+  // 2. R9 GetNextGuidHob does not strip the HOB header, so caller is required to apply
+  //    GET_GUID_HOB_DATA () and GET_GUID_HOB_DATA_SIZE () to extract the data section and its
+  //    size info respectively.
+  // 3. this function does not skip the starting HOB pointer unconditionally:
+  //    it returns HobStart back if HobStart itself meets the requirement;
+  //    caller is required to use GET_NEXT_HOB() if it wishes to skip current HobStart.
+  //
+  EFI_PEI_HOB_POINTERS  GuidHob;
+
+  if (Buffer == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  GuidHob.Raw = GetNextGuidHob (Guid, *HobStart);
+  if (GuidHob.Raw == NULL) {
+    return EFI_NOT_FOUND;
+  }
+
+  *Buffer = GET_GUID_HOB_DATA (GuidHob.Guid);
+  if (BufferSize != NULL) {
+    *BufferSize = GET_GUID_HOB_DATA_SIZE (GuidHob.Guid);
+  }
+
+  *HobStart = GET_NEXT_HOB (GuidHob);
+
+  return EFI_SUCCESS;
+}
+
+