mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-23 16:17:40 +01:00
60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
|
/** @file
|
||
|
|
Base Library CPU Functions for all architectures.
|
||
|
|
|
||
|
|
Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
|
||
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
||
|
|
|
||
|
|
**/
|
||
|
|
|
||
|
|
#include "BaseLibInternals.h"
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
Disables CPU interrupts and returns the interrupt state prior to the disable
|
||
|
|
operation.
|
||
|
|
|
||
|
|
@retval TRUE CPU interrupts were enabled on entry to this call.
|
||
|
|
@retval FALSE CPU interrupts were disabled on entry to this call.
|
||
|
|
|
||
|
|
**/
|
||
|
|
BOOLEAN
|
||
|
|
EFIAPI
|
||
|
|
SaveAndDisableInterrupts (
|
||
|
|
VOID
|
||
|
|
)
|
||
|
|
{
|
||
|
|
BOOLEAN InterruptState;
|
||
|
|
|
||
|
|
InterruptState = GetInterruptState ();
|
||
|
|
DisableInterrupts ();
|
||
|
|
return InterruptState;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
Set the current CPU interrupt state.
|
||
|
|
|
||
|
|
Sets the current CPU interrupt state to the state specified by
|
||
|
|
InterruptState. If InterruptState is TRUE, then interrupts are enabled. If
|
||
|
|
InterruptState is FALSE, then interrupts are disabled. InterruptState is
|
||
|
|
returned.
|
||
|
|
|
||
|
|
@param InterruptState TRUE if interrupts should be enabled. FALSE if
|
||
|
|
interrupts should be disabled.
|
||
|
|
|
||
|
|
@return InterruptState
|
||
|
|
|
||
|
|
**/
|
||
|
|
BOOLEAN
|
||
|
|
EFIAPI
|
||
|
|
SetInterruptState (
|
||
|
|
IN BOOLEAN InterruptState
|
||
|
|
)
|
||
|
|
{
|
||
|
|
if (InterruptState) {
|
||
|
|
EnableInterrupts ();
|
||
|
|
} else {
|
||
|
|
DisableInterrupts ();
|
||
|
|
}
|
||
|
|
return InterruptState;
|
||
|
|
}
|