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