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/** @file
Definitions for HECI driver.
Copyright (c) 2012 - 2016, 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.
**/
#ifndef _HECI_HPET_H
#define _HECI_HPET_H
#include "HeciCore.h"
#include <IndustryStandard/Pci22.h>
#include <Library/DebugLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <HeciRegs.h>
#include <SeCAccess.h>
volatile
UINT32 *
EnableHpet (
VOID
);
VOID
SaveHpet (
VOID
);
/**
Restore the value of High Performance Timer
@param[in] None
@retval None
**/
VOID
RestoreHpet (
VOID
);
/**
Used for calculating timeouts
@param[in] Start Snapshot of the HPET timer
@param[in] End Calculated time when timeout period will be done
@param[in] Time Timeout period in microseconds
@retval None
**/
volatile
UINT32 *
StartTimer (
OUT UINT32 *Start,
OUT UINT32 *End,
IN UINT32 Time
);
/**
Used to determine if a timeout has occured.
@param[in] Start Snapshot of the HPET timer when the timeout period started.
@param[in] End Calculated time when timeout period will be done.
@retval EFI_STATUS
**/
EFI_STATUS
Timeout (
IN UINT32 Start,
IN UINT32 End,
IN volatile UINT32 *HpetTimer
);
/**
Delay for at least the request number of microseconds
@param[in] delayTime Number of microseconds to delay.
@retval None
**/
VOID
IoDelay (
UINT32 delayTime
);
#endif ///< _HECI_HPET_H
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