EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/PostCode.c

   1 /*++
   2
   3 Copyright (c) 2004, Intel Corporation
   4 All rights reserved. This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this distribution.  The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12 Module Name:
  13
  14   PostCode.c
  15
  16 Abstract:
  17
  18   Worker functions for PostCode
  19
  20 --*/
  21
  22 #include "TianoCommon.h"
  23 #include "EfiCommonLib.h"
  24
  25 BOOLEAN
  26 CodeTypeToPostCode (
  27   IN  EFI_STATUS_CODE_TYPE    CodeType,
  28   IN  EFI_STATUS_CODE_VALUE   Value,
  29   OUT UINT8                   *PostCode
  30   )
  31 /*++
  32
  33 Routine Description:
  34
  35   Convert code value to an 8 bit post code
  36
  37 Arguments:
  38
  39   CodeType  - Code type
  40   Value     - Code value
  41   PostCode  - Post code as output
  42
  43 Returns:
  44
  45   TRUE    - Successfully converted
  46
  47   FALSE   - Convertion failed
  48
  49 --*/
  50 {
  51   //
  52   // Convert Value to an 8 bit post code
  53   //
  54   if (((CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_PROGRESS_CODE) ||
  55       ((CodeType & EFI_STATUS_CODE_TYPE_MASK)== EFI_ERROR_CODE)) {
  56     *PostCode = (UINT8) (((Value & EFI_STATUS_CODE_CLASS_MASK) >> 24) << 5);
  57     *PostCode |= (UINT8) (((Value & EFI_STATUS_CODE_SUBCLASS_MASK) >> 16) & 0x1f);
  58     return TRUE;
  59   }
  60
  61   return FALSE;
  62 }