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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 AK4641_H
#define AK4641_H
//------------------------------------------------------------------------------
// Definitions
//------------------------------------------------------------------------------
/*! Calculates the SSC Transmit Clock Mode Register value given the desired
\a sampleSize (in bytes) and \a numChannels */
#define AK4641_TCMR(sampleSize, numChannels) \
(0x02 /* LibV3 constant is not valid */ \
| AT91C_SSC_CKO_NONE \
| AT91C_SSC_START_FALL_RF \
| SSC_STTDLY(1) \
| SSC_PERIOD(sampleSize * 8 * numChannels))
/*! Calculates the SSC Transmit Frame Mode Register value given the desired
\a sampleSize (in bytes) and \a numChannels */
#define AK4641_TFMR(sampleSize, numChannels) \
(SSC_DATLEN(sampleSize * 8) \
| AT91C_SSC_MSBF \
| SSC_DATNB(numChannels) \
| SSC_FSLEN(sampleSize * 8) \
| AT91C_SSC_FSOS_NEGATIVE)
/*! Calculates the SSC Received Clock Mode Register value given the desired
\a sampleSize (in bytes) and \a numChannels */
#define AK4641_RCMR(sampleSize, numChannels) \
(AT91C_SSC_CKS_TK \
| AT91C_SSC_CKO_NONE \
| AT91C_SSC_CKI \
| AT91C_SSC_START_TX \
| SSC_STTDLY(1) \
| SSC_PERIOD(sampleSize * 8 * numChannels))
/*! Calculates the SSC Receive Frame Mode Register value given the desired
\a sampleSize (in bytes) and \a numChannels. */
#define AK4641_RFMR(sampleSize, numChannels) \
(SSC_DATLEN(sampleSize *8) \
| AT91C_SSC_MSBF \
| SSC_DATNB(numChannels) \
| SSC_FSLEN(sampleSize * 8) \
| AT91C_SSC_FSOS_NEGATIVE)
//------------------------------------------------------------------------------
// Exported functions
//------------------------------------------------------------------------------
extern inline void AK4641_Configure(AT91S_TWI *twi);
extern inline void AK4641_SetMuted(AT91S_TWI *twi, unsigned char muted);
#endif //#ifndef AK4641_H
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