mirror of https://github.com/acidanthera/audk.git
75 lines
2.0 KiB
C
75 lines
2.0 KiB
C
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/*++
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Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available under
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the terms and conditions of the BSD License that accompanies this distribution.
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The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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LegacySpeaker.h
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Abstract:
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Speaker enabling related data
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--*/
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#ifndef _DXE_LEGACY_SPEAKER_H
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#define _DXE_LEGACY_SPEAKER_H
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#include "PlatformDxe.h"
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//
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// Speaker Related Port Information
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//
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#define EFI_TIMER_COUNTER_PORT 0x40
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#define EFI_TIMER_CONTROL_PORT 0x43
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#define EFI_TIMER_2_PORT 0x42
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#define EFI_SPEAKER_CONTROL_PORT 0x61
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#define EFI_SPEAKER_OFF_MASK 0xFC
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#define EFI_DEFAULT_BEEP_FREQUENCY 0x500
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//
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// Default Intervals/Beep Duration
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//
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#define EFI_DEFAULT_LONG_BEEP_DURATION 0x70000
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#define EFI_DEFAULT_SHORT_BEEP_DURATION 0x50000
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#define EFI_DEFAULT_BEEP_TIME_INTERVAL 0x20000
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EFI_STATUS
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EFIAPI
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ProgramToneFrequency (
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IN EFI_SPEAKER_IF_PROTOCOL * This,
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IN UINT16 Frequency
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);
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EFI_STATUS
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EFIAPI
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GenerateBeepTone (
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IN EFI_SPEAKER_IF_PROTOCOL * This,
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IN UINTN NumberOfBeeps,
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IN UINTN BeepDuration,
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IN UINTN TimeInterval
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);
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EFI_STATUS
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TurnOnSpeaker (
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);
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EFI_STATUS
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TurnOffSpeaker (
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);
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#endif
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