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/* ----------------------------------------------------------------------------

 *         ATMEL Microcontroller Software Support

 * ----------------------------------------------------------------------------

 * Copyright (c) 2008, Atmel Corporation

 *

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions are met:

 *

 * - Redistributions of source code must retain the above copyright notice,

 * this list of conditions and the disclaimer below.

 *

 * Atmel's name may not be used to endorse or promote products derived from

 * this software without specific prior written permission.

 *

 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR

 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE

 * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,

 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,

 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,

 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 * ----------------------------------------------------------------------------

 */

#ifndef AC97C_H

#define AC97C_H

//------------------------------------------------------------------------------

//         Constants

//------------------------------------------------------------------------------

/// The channel is already busy with a transfer.

#define AC97C_ERROR_BUSY            1

/// The transfer has been stopped by the user.

#define AC97C_ERROR_STOPPED         2

/// Codec channel index.

#define AC97C_CHANNEL_CODEC             0

/// Channel A index.

#define AC97C_CHANNEL_A             1

/// Channel B index.

#define AC97C_CHANNEL_B             2

/// Codec transmit/receive transfer index.

#define AC97C_CODEC_TRANSFER        0

/// Channel A receive transfer index.

#define AC97C_CHANNEL_A_RECEIVE     1

/// Channel A transmit transfer index.

#define AC97C_CHANNEL_A_TRANSMIT    2

/// Channel B receive transfer index.

#define AC97C_CHANNEL_B_RECEIVE     3

/// Channel B transmit transfer index.

#define AC97C_CHANNEL_B_TRANSMIT    4

//------------------------------------------------------------------------------

//         Types

//------------------------------------------------------------------------------

/// AC97C transfer callback function.

typedef void (*Ac97Callback)(void *pArg,

                             unsigned char status,

                             unsigned int remaining);

//------------------------------------------------------------------------------

//         Exported functions

//------------------------------------------------------------------------------

extern void AC97C_Configure();

extern void AC97C_ConfigureChannel(unsigned char channel, unsigned int cfg);

extern void AC97C_AssignInputSlots(unsigned char channel, unsigned int slots);

extern void AC97C_AssignOutputSlots(unsigned char channel, unsigned int slots);

extern unsigned char AC97C_Transfer(

                                unsigned char channel,

                                unsigned char *pBuffer,

                                unsigned int numSamples,

                                Ac97Callback callback,

                                void *pArg);

extern unsigned char AC97C_IsFinished(unsigned char channel);

extern void AC97C_WriteCodec(unsigned char address, unsigned short data);

extern unsigned short AC97C_ReadCodec(unsigned char address);

extern void AC97C_SetChannelSize(unsigned char channel, unsigned char size);

extern void AC97C_CancelTransfer(unsigned char channel);

#endif //#ifndef AC97C_H