/* ---------------------------------------------------------------------------- | |
* 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 | |
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* 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 | |