1 files changed, 62 insertions, 0 deletions
diff --git a/EDK/Foundation/Library/EfiCommonLib/PostCode.c b/EDK/Foundation/Library/EfiCommonLib/PostCode.c
new file mode 100644
index 0000000..bf9c544
--- /dev/null
+++ b/EDK/Foundation/Library/EfiCommonLib/PostCode.c
@@ -0,0 +1,62 @@
+/*++
+
+Copyright (c) 2004, 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.             
+
+Module Name:
+
+  PostCode.c
+
+Abstract:
+
+  Worker functions for PostCode
+
+--*/
+
+#include "TianoCommon.h"
+#include "EfiCommonLib.h"
+
+BOOLEAN
+CodeTypeToPostCode (
+  IN  EFI_STATUS_CODE_TYPE    CodeType,
+  IN  EFI_STATUS_CODE_VALUE   Value,
+  OUT UINT8                   *PostCode
+  )
+/*++
+
+Routine Description:
+
+  Convert code value to an 8 bit post code
+
+Arguments:
+
+  CodeType  - Code type
+  Value     - Code value
+  PostCode  - Post code as output
+
+Returns:
+
+  TRUE    - Successfully converted
+  
+  FALSE   - Convertion failed
+
+--*/
+{
+  //
+  // Convert Value to an 8 bit post code
+  //
+  if (((CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_PROGRESS_CODE) ||
+      ((CodeType & EFI_STATUS_CODE_TYPE_MASK)== EFI_ERROR_CODE)) {
+    *PostCode = (UINT8) (((Value & EFI_STATUS_CODE_CLASS_MASK) >> 24) << 5);
+    *PostCode |= (UINT8) (((Value & EFI_STATUS_CODE_SUBCLASS_MASK) >> 16) & 0x1f);
+    return TRUE;
+  }
+
+  return FALSE;
+}