diff options
| author | Guo Mang <mang.guo@intel.com> | 2016-12-22 15:57:14 +0800 |
|---|---|---|
| committer | Guo Mang <mang.guo@intel.com> | 2016-12-26 19:14:41 +0800 |
| commit | 1760cf81e4b1847c6823ea3514a78dd120e19b6e (patch) | |
| tree | 64a874b14050fe24d3bbc1bc13cd293abf8ae018 /Core/MdePkg/Library/BaseS3StallLib/S3StallLib.c | |
| parent | 7f05fa00f73038b425002566d3afe6c3ade2ccdb (diff) | |
| download | edk2-platforms-1760cf81e4b1847c6823ea3514a78dd120e19b6e.tar.xz | |
MdePkg: Move to new location
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
Diffstat (limited to 'Core/MdePkg/Library/BaseS3StallLib/S3StallLib.c')
| -rw-r--r-- | Core/MdePkg/Library/BaseS3StallLib/S3StallLib.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/Core/MdePkg/Library/BaseS3StallLib/S3StallLib.c b/Core/MdePkg/Library/BaseS3StallLib/S3StallLib.c new file mode 100644 index 0000000000..e5ebc874f5 --- /dev/null +++ b/Core/MdePkg/Library/BaseS3StallLib/S3StallLib.c @@ -0,0 +1,52 @@ +/** @file
+ Stall Services that do stall and also enable the Stall operatation
+ to be replayed during an S3 resume. This library class maps directly on top
+ of the Timer class.
+
+ Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+
+ 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 <Base.h>
+
+#include <Library/TimerLib.h>
+#include <Library/DebugLib.h>
+#include <Library/S3BootScriptLib.h>
+#include <Library/S3StallLib.h>
+
+
+/**
+ Stalls the CPU for at least the given number of microseconds and and saves
+ the value in the S3 script to be replayed on S3 resume.
+
+ Stalls the CPU for the number of microseconds specified by MicroSeconds.
+
+ @param MicroSeconds The minimum number of microseconds to delay.
+
+ @return MicroSeconds
+
+**/
+UINTN
+EFIAPI
+S3Stall (
+ IN UINTN MicroSeconds
+ )
+{
+ RETURN_STATUS Status;
+
+ Status = S3BootScriptSaveStall (MicroSecondDelay (MicroSeconds));
+ ASSERT (Status == RETURN_SUCCESS);
+
+ return MicroSeconds;
+}
+
+
|