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