audio.h

freesacle mx21下的声卡alc5620的驱动程序

//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
//
// Use of this source code is subject to the terms of the Microsoft end-user
// license agreement (EULA) under which you licensed this SOFTWARE PRODUCT.
// If you did not accept the terms of the EULA, you are not authorized to use
// this source code. For a copy of the EULA, please see the LICENSE.RTF on your
// install media.
//
//------------------------------------------------------------------------------
//
//  Copyright (C) 2004, Freescale Semiconductor, Inc. All Rights Reserved
//  THIS SOURCE CODE IS CONFIDENTIAL AND PROPRIETARY AND MAY NOT
//  BE USED OR DISTRIBUTED WITHOUT THE WRITTEN PERMISSION OF
//  FREESCALE SEMICONDUCTOR, INC.
//
//------------------------------------------------------------------------------
//
//  Copyright (C) 2005, MOTOROLA, INC. All Rights Reserved
//  THIS SOURCE CODE IS CONFIDENTIAL AND PROPRIETARY AND MAY NOT
//  BE USED OR DISTRIBUTED WITHOUT THE WRITTEN PERMISSION OF
//  MOTOROLA, INC.
//
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
//
//  File:  audio.h
//
//  Provides definitions for common audio helper library
//
//-----------------------------------------------------------------------------
#ifndef __DRIVERS_AUDIO_COMMON_RT5620_AUDIO_H
#define __DRIVERS_AUDIO_COMMON_RT5620_AUDIO_H

#include "bsp.h"
#include "SsiClass.h"
#include "AudmuxClass.h"
#include "RTCodecComm.h"

#ifdef __cplusplus
    extern "C" {
#endif

//------------------------------------------------------------------------------
// MACRO DEFINITIONS 
//------------------------------------------------------------------------------
#define AUDIO_TX_WORD_LEN           SSI_WORDLEN_BITS16  // 16
#define AUDIO_RX_WORD_LEN           SSI_WORDLEN_BITS16  // 16


#define CODECSAMPLERATE             (48000)


// Note: This is max allowed when using double buffering for each
// dir.
//#define AUDIO_DMA_PAGE_SIZE     (BSP_DMAC_AUDIO_BUFF_SIZE / 4)

#define AUDIO_RECORD_DMA        BSP_DMAC_CH_AUDIO_RX
#define AUDIO_PLAYBACK_DMA      BSP_DMAC_CH_AUDIO_TX

#define AUDIO_SSI_ID            SSI_ID_SSI1

#define AUDIO_TX_FIFO_WATERMARK     4
#define AUDIO_RX_FIFO_WATERMARK     6

#define AUDIO_BITCLK_OVERSAMPLE_RATE    256
//------------------------------------------------------------------------------
// ENUMERATIONS AND STRUCTURES 
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
// FUNCTION PROTOTYPES
//------------------------------------------------------------------------------
BOOL audioHwInit(   BOOL        ssiDmaEn,
                    BOOL        ssiIntrEn,
                    UINT32      txBuffer,
                    UINT32      txBufferSize,
                    UINT32      rxBuffer,
                    UINT32      rxBufferSize,
                    UINT8       *txDmaCh,
                    UINT8       *rxDmaCh);

void audioHwDeinit(void); 

void audioSetPowerOnOff(BOOL bSetPlayback, BOOL bSetRecord, BOOL bOff);
//------------------------------------------------------------------------------
// EXTERN DECLARATIONS
//------------------------------------------------------------------------------
extern SsiClass *g_Ssi;

extern RT_CodecComm *g_Codec;


#ifdef __cplusplus
    }
#endif
//------------------------------------------------------------------------------
// CLASS DEFINITIONS
//------------------------------------------------------------------------------

#endif /* _DRIVERS_AUDIO_COMMON_AUDIO_H */

//------------------------------------------------------------------------------
// END OF FILE
//------------------------------------------------------------------------------