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/*++ @file
Emu Emulation Architectural Protocol Driver as defined in UEFI/PI.
This Timer module uses an UNIX Thread to simulate the timer-tick driven
timer service.
Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
Portions copyright (c) 2010 - 2011, Apple Inc. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _TIMER_H_
#define _TIMER_H_
//
// Legal timer value range in 100 ns units
//
#define TIMER_MINIMUM_VALUE 0
#define TIMER_MAXIMUM_VALUE (0x100000000ULL - 1)
//
// Default timer value in 100 ns units (50 ms)
//
#define DEFAULT_TIMER_TICK_DURATION 500000
//
// Function Prototypes
//
EFI_STATUS
EFIAPI
EmuTimerDriverInitialize (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
);
EFI_STATUS
EFIAPI
EmuTimerDriverRegisterHandler (
IN EFI_TIMER_ARCH_PROTOCOL *This,
IN EFI_TIMER_NOTIFY NotifyFunction
);
EFI_STATUS
EFIAPI
EmuTimerDriverSetTimerPeriod (
IN EFI_TIMER_ARCH_PROTOCOL *This,
IN UINT64 TimerPeriod
);
EFI_STATUS
EFIAPI
EmuTimerDriverGetTimerPeriod (
IN EFI_TIMER_ARCH_PROTOCOL *This,
OUT UINT64 *TimerPeriod
);
EFI_STATUS
EFIAPI
EmuTimerDriverGenerateSoftInterrupt (
IN EFI_TIMER_ARCH_PROTOCOL *This
);
#endif
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