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//
// This file contains 'Framework Code' and is licensed as such
// under the terms of your license agreement with Intel or your
// vendor. This file may not be modified, except as allowed by
// additional terms of your license agreement.
//
/*++
Copyright (c) 1999 - 2002 Intel Corporation. All rights reserved
This software and associated documentation (if any) is furnished
under a license and may only be used or copied in accordance
with the terms of the license. Except as permitted by such
license, no part of this software or documentation may be
reproduced, stored in a retrieval system, or transmitted in any
form or by any means without the express written consent of
Intel Corporation.
Module Name:
SimpleAudioOut.h
Abstract:
EFI Simple Audio Out Protocol
Revision History
--*/
#ifndef _EFI_SIMPLE_AUDIO_OUT_H_
#define _EFI_SIMPLE_AUDIO_OUT_H_
//
// GUID for Simple Audio Out Protocol
//
#define EFI_SIMPLE_AUDIO_OUT_PROTOCOL_GUID \
{ \
0xc723f288, 0x52f9, 0x4d80, 0xb6, 0x33, 0xe1, 0x52, 0xf9, 0x30, 0xa0, 0xdc \
}
EFI_FORWARD_DECLARATION (EFI_SIMPLE_AUDIO_OUT_PROTOCOL);
typedef enum {
EfiAudioOutStart,
EfiAudioOutPause,
EfiAudioOutContinue,
EfiAudioOutStop
} EFI_SIMPLE_AUDIO_OUT_OPERATION;
typedef
EFI_STATUS
(EFIAPI *EFI_SIMPLE_AUDIO_OUT_STREAM_OPERATION) (
IN EFI_SIMPLE_AUDIO_OUT_PROTOCOL * This,
IN EFI_SIMPLE_AUDIO_OUT_OPERATION Operation,
IN UINT8 *Buffer OPTIONAL,
IN UINT32 BufferSize OPTIONAL
);
#define EFI_SIMPLE_AUDIO_OUT_STATE_BUFFER_DRAIN 0x00000001
typedef
EFI_STATUS
(EFIAPI *EFI_SIMPLE_AUDIO_OUT_QUERY_STATE) (
IN EFI_SIMPLE_AUDIO_OUT_PROTOCOL * This,
OUT UINT32 *State
);
//
// Ac97 Audio channel definition
//
typedef enum _AC97_AUDIO_CHANNEL_NUMBER
{
Ac97Channels2 = 0,
Ac97Channels4 = 1,
Ac97Channels6 = 2,
} AC97_AUDIO_CHANNEL_NUMBER;
//
// Ac97 Audio mode definition
//
typedef enum _AC97_AUDIO_PCM_MODE
{
Ac97Audio16Bit = 0,
Ac97Audio20Bit = 1,
} AC97_AUDIO_PCM_MODE;
//
// Ac97 Audio volume definition
//
#pragma pack(1)
typedef struct {
UINT16 RigthChannelVol : 6;
UINT16 Reserved1 : 2;
UINT16 LeftChannelVol : 6;
UINT16 Reserved2 : 1;
UINT16 Mute : 1;
} AC97_AUDIO_GENERAL_VOLUME;
typedef struct {
UINT16 Treble : 4;
UINT16 Reserved1 : 4;
UINT16 Bass : 4;
UINT16 Reserved2 : 4;
} AC97_AUDIO_GENERAL_TONE;
#pragma pack()
//
// Ac97 Audio driver attribute definition
//
typedef enum {
EfiAudioOutChannelNumber,
EfiAudioOutSampleRate,
EfiAudioOutPcmMode,
EfiAudioOutMasterVolume,
EfiAudioOutAuxVolume,
EfiAudioOutMonoVolume,
EfiAudioOutMasterTone,
} EFI_SIMPLE_AUDIO_OUT_ATTRIBUTE_TARGET;
typedef
EFI_STATUS
(EFIAPI *EFI_SIMPLE_AUDIO_OUT_GET_ATTRIBUTE) (
IN EFI_SIMPLE_AUDIO_OUT_PROTOCOL * This,
IN EFI_SIMPLE_AUDIO_OUT_ATTRIBUTE_TARGET Target,
OUT VOID *Buffer,
IN UINT32 BufferSize
);
typedef
EFI_STATUS
(EFIAPI *EFI_SIMPLE_AUDIO_OUT_SET_ATTRIBUTE) (
IN EFI_SIMPLE_AUDIO_OUT_PROTOCOL * This,
IN EFI_SIMPLE_AUDIO_OUT_ATTRIBUTE_TARGET Target,
IN VOID *Buffer,
IN UINT32 BufferSize
);
typedef struct _EFI_SIMPLE_AUDIO_OUT_PROTOCOL {
EFI_SIMPLE_AUDIO_OUT_STREAM_OPERATION StreamOperation;
EFI_SIMPLE_AUDIO_OUT_QUERY_STATE QueryState;
EFI_SIMPLE_AUDIO_OUT_GET_ATTRIBUTE GetAttribute;
EFI_SIMPLE_AUDIO_OUT_SET_ATTRIBUTE SetAttribute;
} EFI_SIMPLE_AUDIO_OUT_PROTOCOL;
extern EFI_GUID gEfiSimpleAudioOutProtocolGuid;
#endif
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