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/*++
Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
Module Name:
Speaker.h
Abstract:
EFI Speaker Interface Protocol
Revision History
**/
#ifndef _EFI_SPEAKER_H
#define _EFI_SPEAKER_H
//
// Global Id for Speaker Interface
//
#define EFI_SPEAKER_INTERFACE_PROTOCOL_GUID \
{ \
0x400b4476, 0x3081, 0x11d6, 0x87, 0xed, 0x00, 0x06, 0x29, 0x45, 0xc3, 0xb9 \
}
typedef struct _EFI_SPEAKER_IF_PROTOCOL EFI_SPEAKER_IF_PROTOCOL;
//
// Beep Code
//
typedef
EFI_STATUS
(EFIAPI *EFI_GENERATE_BEEP) (
IN EFI_SPEAKER_IF_PROTOCOL * This,
IN UINTN NumberOfBeep,
IN UINTN BeepDuration,
IN UINTN TimeInterval
);
//
// Set Frequency
//
typedef
EFI_STATUS
(EFIAPI *EFI_SPEAKER_SET_FREQUENCY) (
IN EFI_SPEAKER_IF_PROTOCOL * This,
IN UINT16 Frequency
);
//
// Protocol definition
//
struct _EFI_SPEAKER_IF_PROTOCOL {
EFI_SPEAKER_SET_FREQUENCY SetSpeakerToneFrequency;
EFI_GENERATE_BEEP GenerateBeep;
} ;
extern EFI_GUID gEfiSpeakerInterfaceProtocolGuid;
#endif
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