MdeModulePkg: Update modules to consume CalculateCrc32()

[mirror_edk2.git] / MdeModulePkg / Core / RuntimeDxe / Crc32.c

diff --git a/MdeModulePkg/Core/RuntimeDxe/Crc32.c b/MdeModulePkg/Core/RuntimeDxe/Crc32.c
index a6fe77fa349b0bdf42237518c149ac04f30ca915..3e91e0804965c43429aed2c55fee41290253a701 100644 (file)
--- a/MdeModulePkg/Core/RuntimeDxe/Crc32.c
+++ b/MdeModulePkg/Core/RuntimeDxe/Crc32.c
@@ -7,7 +7,7 @@
   EFI Runtime Services Table are converted from physical address to\r
   virtual addresses.  This requires that the 32-bit CRC be recomputed.\r
 \r
-Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>\r
 This program and the accompanying materials\r
 are licensed and made available under the terms and conditions of the BSD License\r
 which accompanies this distribution.  The full text of the license may be found at\r
@@ -20,8 +20,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 \r
 \r
 #include <Uefi.h>\r
-\r
-UINT32  mCrcTable[256];\r
+#include <Library/BaseLib.h>\r
 \r
 /**\r
   Calculate CRC32 for target data.\r
@@ -43,73 +42,6 @@ RuntimeDriverCalculateCrc32 (
   OUT UINT32  *CrcOut\r
   )\r
 {\r
-  UINT32  Crc;\r
-  UINTN   Index;\r
-  UINT8   *Ptr;\r
-\r
-  if (Data == NULL || DataSize == 0 || CrcOut == NULL) {\r
-    return EFI_INVALID_PARAMETER;\r
-  }\r
-\r
-  Crc = 0xffffffff;\r
-  for (Index = 0, Ptr = Data; Index < DataSize; Index++, Ptr++) {\r
-    Crc = (Crc >> 8) ^ mCrcTable[(UINT8) Crc ^ *Ptr];\r
-  }\r
-\r
-  *CrcOut = Crc ^ 0xffffffff;\r
+  *CrcOut = CalculateCrc32 (Data, DataSize);\r
   return EFI_SUCCESS;\r
 }\r
-\r
-\r
-/**\r
-  This internal function reverses bits for 32bit data.\r
-\r
-  @param  Value                 The data to be reversed.\r
-\r
-  @return                       Data reversed.\r
-\r
-**/\r
-UINT32\r
-ReverseBits (\r
-  UINT32  Value\r
-  )\r
-{\r
-  UINTN   Index;\r
-  UINT32  NewValue;\r
-\r
-  NewValue = 0;\r
-  for (Index = 0; Index < 32; Index++) {\r
-    if ((Value & (1 << Index)) != 0) {\r
-      NewValue = NewValue | (1 << (31 - Index));\r
-    }\r
-  }\r
-\r
-  return NewValue;\r
-}\r
-\r
-/**\r
-  Initialize CRC32 table.\r
-\r
-**/\r
-VOID\r
-RuntimeDriverInitializeCrc32Table (\r
-  VOID\r
-  )\r
-{\r
-  UINTN   TableEntry;\r
-  UINTN   Index;\r
-  UINT32  Value;\r
-\r
-  for (TableEntry = 0; TableEntry < 256; TableEntry++) {\r
-    Value = ReverseBits ((UINT32) TableEntry);\r
-    for (Index = 0; Index < 8; Index++) {\r
-      if ((Value & 0x80000000) != 0) {\r
-        Value = (Value << 1) ^ 0x04c11db7;\r
-      } else {\r
-        Value = Value << 1;\r
-      }\r
-    }\r
-\r
-    mCrcTable[TableEntry] = ReverseBits (Value);\r
-  }\r
-}\r