www.pudn.com > LPC2148_IAR_LPC2148.zip > audio_desc.h
/*************************************************************************
*
* Used with ICCARM and AARM.
*
* (c) Copyright IAR Systems 2005
*
* File name : audio_desc.h
* Description : AUDIO descriptor definitions
*
* History :
* 1. Data : November 29, 2005
* Author : Stanimir Bonev
* Description : Create
*
* $Revision: 1.1.2.1 $
**************************************************************************/
#ifndef __AUDIO_DESC_H
#define __AUDIO_DESC_H
#include "arm_comm.h"
#include "usb_desc.h"
typedef enum
{
SUBCLASS_UNDEFINED = 0, AUDIOCONTROL, AUDIOSTREAMING,
MIDISTREAMING,
} AudioInterfaceSubclass_t;
typedef enum
{
PR_PROTOCOL_UNDEFINED = 0,
} AudioInterfaceProtocol_t;
typedef enum
{
CS_UNDEFINED = 0x20,CS_DEVICE,CS_CONFIGURATION,CS_STRING,
CS_INTERFACE,CS_ENDPOINT,
} AudioClassSpecificDescriptorTypes_t;
typedef enum
{
AC_DESCRIPTOR_UNDEFINED = 0,HEADER,INPUT_TERMINAL,OUTPUT_TERMINAL,
MIXER_UNIT,SELECTOR_UNIT,FEATURE_UNIT,PROCESSING_UNIT,EXTENSION_UNIT,
} AudioACInterfaceDescriptorSubtypes_t;
typedef enum
{
AS_DESCRIPTOR_UNDEFINED = 0,AS_GENERAL,FORMAT_TYPE,FORMAT_SPECIFIC,
} AudioASInterfaceDescriptorSubtypes_t;
typedef enum
{
DESCRIPTOR_UNDEFINED = 0,EP_GENERAL,
} AudioASEndpoinDescriptorSubtypes_t;
typedef enum
{
FORMAT_TYPE_UNDEFINED = 0,FORMAT_TYPE_I,FORMAT_TYPE_II,FORMAT_TYPE_III,
} AudioFormatTypeCodes_t;
typedef enum
{
TYPE_I_UNDEFINED = 0,PCM,PCM8,IEEE_FLOAT,ALAW,MULAW,
} AudioDataFormatTypeI_t;
typedef enum
{
TYPE_II_UNDEFINED = 0x1000,MPEG,AC_3,
} AudioDataFormatTypeII_t;
typedef enum
{
TYPE_III_UNDEFINED = 0x2000,IEC1937_AC_3,IEC1937_MPEG_1,
IEC1937_MPEG_2_NOEXT, IEC1937_MPEG_2_EXT, IEC1937_MPEG_2_Layer1_LS,
IEC1937_MPEG_2_Layer2_3_LS,
} AudioDataFormatTypeIII_t;
typedef enum
{
Undefined = 0, Milliseconds, DecodedPCMsamples,
} ClassEpLockDelay_t;
typedef union
{
Int16U wChannelConfig;
struct
{
Int16U LF : 1; // Left Front
Int16U RF : 1; // Right Front
Int16U CF : 1; // Center Front
Int16U LFE: 1; // Low Frequency Enhancement
Int16U Ls : 1; // Left Surround
Int16U Rs : 1; // Right Surround
Int16U Lc : 1; // Left of Center
Int16U Rc : 1; // Right of Center
Int16U S : 1; // Surround
Int16U Sl : 1; // Side Left
Int16U Sr : 1; // Side Right
Int16U T : 1; // Top
Int16U : 4; // Reserved
};
} ChannelConfig_t;
#define FeatUnitMute (1UL<<0)
#define FeatUnitVolume (1UL<<1)
#define FeatUnitBass (1UL<<2)
#define FeatUnitMid (1UL<<3)
#define FeatUnitTreble (1UL<<4)
#define FeatUnitGraphicEqualizer (1UL<<5)
#define FeatUnitAutomaticGain (1UL<<6)
#define FeatUnitDelay (1UL<<7)
#define FeatUnitBassBoost (1UL<<8)
#define FeatUnitLoudness (1UL<<9)
// Predefined Audio Channel Configuration Bits
#define AUDIO_CHANNEL_M 0x0000 // Mono
#define AUDIO_CHANNEL_L 0x0001 // Left Front
#define AUDIO_CHANNEL_R 0x0002 // Right Front
#define AUDIO_CHANNEL_C 0x0004 // Center Front
#define AUDIO_CHANNEL_LFE 0x0008 // Low Frequency Effects
#define AUDIO_CHANNEL_LS 0x0010 // Left Surround
#define AUDIO_CHANNEL_RS 0x0020 // Right Surround
#define AUDIO_CHANNEL_LC 0x0040 // Left of Center
#define AUDIO_CHANNEL_RC 0x0080 // Right of Center
#define AUDIO_CHANNEL_S 0x0100 // Surround
#define AUDIO_CHANNEL_SL 0x0200 // Side Left
#define AUDIO_CHANNEL_SR 0x0400 // Side Right
#define AUDIO_CHANNEL_T 0x0800 // Top
// USB Terminal Types
#define AudioUsbUndefined 0x0100
#define AudioUsbStreaming 0x0101
#define AudioUsbVendorSpecific 0x01FF
// Input Terminal Types
#define AudioInputUndefined 0x0200
#define AudioInputMic 0x0201
#define AudioInputDesktopMic 0x0202
#define AudioInputPersonalMic 0x0203
#define AudioInputOmniDirectionalMic 0x0204
#define AudioInputMicArray 0x0205
#define AudioInputProcessingMicArray 0x0206
// Output Terminal Types
#define AudioOutputUndefined 0x0300
#define AudioOutputSpk 0x0301
#define AudioOutputHeadphones 0x0302
#define AudioOutputHeadMountedDisplayAudio 0x0303
#define AudioOutputDesktopSpk 0x0304
#define AudioOutputRoomSpk 0x0305
#define AudioOutputCommunicationSpk 0x0306
#define AudioOutputLowFrequencyEffectsSpk 0x0307
#pragma pack(1)
typedef struct
{
Int8U bLength;
Int8U bDescriptorType;
Int8U bDescriptorSubtype;
Int16U bcdADC;
Int16U wTotalLength;
Int8U bInCollection;
Int8U baInterfaceNr1;
} UsbClassSpecificACInterfaceDescriptor_t, *pUsbClassSpecificACInterfaceDescriptor_t;
typedef struct
{
Int8U bLength;
Int8U bDescriptorType;
Int8U bDescriptorSubtype;
Int8U bTerminalID;
Int16U wTerminalType;
Int8U bAssocTerminal;
Int8U bNrChannels;
ChannelConfig_t wChannelConfig;
Int8U iChannelNames;
Int8U iTerminal;
} UsbInputTerminalDescriptor_t, *pUsbInputTerminalDescriptor_t;
typedef struct
{
Int8U bLength;
Int8U bDescriptorType;
Int8U bDescriptorSubtype;
Int8U bTerminalLink;
Int8U bDelay;
Int16U wFormatTag;
} UsbClassSpecificASInterfaceDescriptor_t, *pUsbClassSpecificASInterfaceDescriptor_t;
typedef struct
{
Int8U bLength;
Int8U bDescriptorType;
Int8U bDescriptorSubtype;
Int8U bTerminalID;
Int16U wTerminalType;
Int8U bAssocTerminal;
Int8U bSourceID;
Int8U iTerminal;
} UsbOutputTerminalDescriptor_t, *pUsbOutputTerminalDescriptor_t;
typedef struct
{
Int8U bLength;
Int8U bDescriptorType;
Int8U bDescriptorSubtype;
Int8U bFormatType;
Int8U bNrChannels;
Int8U bSubframeSize;
Int8U bBitResolution;
Int8U bSamFreqType;
} UsbTypeIFormatTypeDescriptor_t, *pUsbTypeIFormatTypeDescriptor_t;
typedef struct
{
Int8U bLength;
Int8U bDescriptorType;
Int8U bEndpointAddress;
EpAttr_t bmAttributes;
Int16U wMaxPacketSize;
Int8U bInterval;
Int8U bRefresh;
Int8U bSynchAddress;
} StandardASEndpointDescriptor_t, *pStandardASEndpointDescriptor_t;
typedef union
{
Int8U Attribute;
struct
{
Int8U SamplFreq : 1;
Int8U Pitch : 1;
Int8U : 5;
Int8U MaxPacketsOnly: 1;
};
} ClassEpAttr_t, *pClassEpAttr_t;
typedef struct
{
Int8U bLength;
Int8U bDescriptorType;
Int8U bDescriptorSubtype;
ClassEpAttr_t bmAttributes;
Int8U bLockDelayUnits;
Int16U wLockDelay;
} ClassSpecASEndpointDescriptor_t, *pClassSpecASEndpointDescriptor_t;
typedef struct
{
Int8U bLength;
Int8U bDescriptorType;
Int8U bDescriptorSubtype;
Int8U bUnitID;
Int8U bSourceID;
Int8U bControlSize;
} ClassSpecFeatureUnitDescriptor_t, *pClassSpecFeatureUnitDescriptor_t;
typedef struct
{
Int8U bLength;
Int8U bDescriptorType;
Int8U bDescriptorSubtype;
Int8U bUnitID;
Int8U bNrInPins;
} ClassSpecSelectorUnitDescriptor_t, *pClassSpecSelectorUnitDescriptor_t;
typedef struct
{
Int8U bLength;
Int8U bDescriptorType;
Int8U bDescriptorSubtype;
Int8U bUnitID;
Int8U bNrInPins;
} ClassSpecMixUnitDescriptor_t, *pClassSpecMixrUnitDescriptor_t;
#pragma pack()
#endif //__AUDIO_DESC_H