Clean up MdePkg source to correct some coding style issues, etc.

[mirror_edk2.git] / MdePkg / Library / BaseSynchronizationLib / Arm / Synchronization.c

diff --git a/MdePkg/Library/BaseSynchronizationLib/Arm/Synchronization.c b/MdePkg/Library/BaseSynchronizationLib/Arm/Synchronization.c
index 8b29a0ed9e7a0fd7abc6bca995a00ab1bd7b542c..56f4d3c481873d3db0c0a27b570bf97a4c325e13 100644 (file)
--- a/MdePkg/Library/BaseSynchronizationLib/Arm/Synchronization.c
+++ b/MdePkg/Library/BaseSynchronizationLib/Arm/Synchronization.c
@@ -1,8 +1,8 @@
 /** @file\r
   Implementation of synchronization functions. Still needs to be ported\r
 \r
-  Copyright (c) 2006 - 2009, Intel Corporation<BR>\r
-  Portions copyright (c) 2008-2009 Apple Inc.<BR> \r
+  Copyright (c) 2006 - 2010, Intel Corporation<BR>\r
+  Portions copyright (c) 2008-2009 Apple Inc. All rights reserved.<BR> \r
   All rights reserved. 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
@@ -13,6 +13,23 @@
 \r
 **/\r
 \r
+/**\r
+  Performs an atomic compare exchange operation on a 32-bit unsigned integer.\r
+\r
+  Performs an atomic compare exchange operation on the 32-bit unsigned integer\r
+  specified by Value.  If Value is equal to CompareValue, then Value is set to\r
+  ExchangeValue and CompareValue is returned.  If Value is not equal to CompareValue,\r
+  then Value is returned.  The compare exchange operation must be performed using\r
+  MP safe mechanisms.\r
+\r
+  @param  Value         A pointer to the 32-bit value for the compare exchange\r
+                        operation.\r
+  @param  CompareValue  32-bit value used in compare operation.\r
+  @param  ExchangeValue 32-bit value used in exchange operation.\r
+\r
+  @return The original *Value before exchange.\r
+\r
+**/\r
 UINT32\r
 EFIAPI\r
 InternalSyncCompareExchange32 (\r