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157 lines
5.3 KiB
C
157 lines
5.3 KiB
C
/* ----------------------------------------------------------------------------
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* ATMEL Microcontroller Software Support
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* ----------------------------------------------------------------------------
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* Copyright (c) 2008, Atmel Corporation
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the disclaimer below.
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*
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* Atmel's name may not be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* ----------------------------------------------------------------------------
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*/
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/** \file
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* USB Audio Speaker & Microphone Function.
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*/
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/** \addtogroup usbd_audio_speakerphone
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*@{
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* Implement speakerphone function that combine 1 AC interface, 1 AS interface
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* for speaker and 1 AS interface for microphone.
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*/
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#ifndef _AUDD_SPEAKERPHONE_H_
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#define _AUDD_SPEAKERPHONE_H_
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/*------------------------------------------------------------------------------
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* Headers
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*------------------------------------------------------------------------------*/
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#include <stdint.h>
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#include <AUDDStream.h>
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#include <USBD.h>
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#include <USBDDriver.h>
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/*------------------------------------------------------------------------------
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* Defines
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*------------------------------------------------------------------------------*/
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/** \addtogroup usbd_audio_ids Audio Device IDs required by driver
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* @{
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* The driver uses following fixed entity IDs, use them to define your
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* descriptor.
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* \ref AUDD_ID_SpeakerIT
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* \ref AUDD_ID_SpeakerOT
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* \ref AUDD_ID_SpeakerFU
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* \ref AUDD_ID_MicrophoneIT
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* \ref AUDD_ID_MicrophoneOT
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* \ref AUDD_ID_MicrophoneFU
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*/
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/** Speaker input terminal ID */
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#define AUDD_ID_SpeakerIT 0x01
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/** Speaker output terminal ID */
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#define AUDD_ID_SpeakerOT 0x02
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/** Speaker feature unit ID */
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#define AUDD_ID_SpeakerFU 0x03
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/** Microphone input terminal ID */
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#define AUDD_ID_MicrophoneIT 0x04
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/** Microphone output terminal ID */
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#define AUDD_ID_MicrophoneOT 0x05
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/** Microphone feature unit ID */
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#define AUDD_ID_MicrophoneFU 0x06
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/** @}*/
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/** \addtogroup usbd_audio_chs Audio Device Channels
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* @{
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*/
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/** Master channel ID */
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#define AUDD_CH_Master 0x0
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/** Left channel ID */
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#define AUDD_CH_L 0x1
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/** Right channel ID */
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#define AUDD_CH_R 0x2
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/** @}*/
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/*------------------------------------------------------------------------------
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* Types
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*------------------------------------------------------------------------------*/
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/**
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* Struct of USB Audio Speakerphone Function, with
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* - 1 control interface for features,
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* - 1 input stream for microphone (Audio IN),
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* - 1 output stream for speaker (Audio OUT).
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*/
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typedef struct _AUDDSpeakerPhone {
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/** Pointer to USBD Driver Interface */
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USBDDriver *pUsbd;
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/** Pointer to AUDDStream Instance */
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AUDDStream *pSpeaker;
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/** Pointer to AUDDStream Instance */
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AUDDStream *pMicrophone;
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} AUDDSpeakerPhone;
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/*------------------------------------------------------------------------------
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* Functions
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*------------------------------------------------------------------------------*/
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extern void AUDDSpeakerPhone_InitializeStream(
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AUDDStream * pAuds,
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uint8_t numChannels,uint16_t wChannelVolumes [ ],
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AUDDStreamEventCallback fCallback,void * pArg);
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extern void AUDDSpeakerPhone_Initialize(
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AUDDSpeakerPhone * pAudf,
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USBDDriver * pUsbd,
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AUDDStream * pSpeaker,AUDDStream * pMicrophone);
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extern USBGenericDescriptor* AUDDSpeakerPhone_ParseInterfaces(
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AUDDSpeakerPhone * pAudf,
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USBGenericDescriptor * pDescriptors,
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uint32_t dwLength);
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extern uint32_t AUDDSpeakerPhone_RequestHandler(
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AUDDSpeakerPhone * pAudf,
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const USBGenericRequest * pRequest);
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extern uint32_t AUDDSpeakerPhone_CloseStream(
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AUDDSpeakerPhone * pAudf,
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uint32_t bInterface);
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extern uint32_t AUDDSpeakerPhone_SetupWrite(
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AUDDSpeakerPhone * pAudf,
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void * pListInit, void * pDmaInit, uint16_t listSize, uint16_t delaySize,
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TransferCallback callback,void * argument);
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extern uint32_t AUDDSpeakerPhone_Write(
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AUDDSpeakerPhone * pAudf,
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void * pBuffer,uint16_t wLength);
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extern uint32_t AUDDSpeakerPhone_Read(
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AUDDSpeakerPhone * pAudf,
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void * pData, uint32_t dwSize,
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TransferCallback fCallback,void * pArg);
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/**@}*/
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#endif /* _AUDD_SPEAKERPHONE_H_ */
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