mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-20 15:48:18 +01:00
46 lines
1.0 KiB
C
46 lines
1.0 KiB
C
/** @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 - 2018, Intel Corporation. All rights reserved.<BR>
|
|
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
|
|
#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;
|
|
}
|
|
|
|
|