56c4e9fa60
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28425 a1c6a512-1295-4272-9138-f99709370657
47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id: dac.h 24158 2010-01-03 11:31:14Z Buschel $
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*
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* Copyright (C) 2002 by Linus Nielsen Feltzing
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef _DAC3550A_H_
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#define _DAC3550A_H_
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#include "config.h"
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/*
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DAC I2C defs
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*/
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#define DAC_ADR 0x9a
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#define DAC_DEV_WRITE (DAC_ADR | 0x00)
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#define DAC_REG_WRITE 0xc0
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/* registers..*/
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#define DAC_SR_REG 1
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#define DAC_AVOL 2
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#define DAC_GCFG 3
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/* function prototypes */
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extern int tenthdb2reg(int db);
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extern int dac_volume(unsigned int left, unsigned int right, bool deemph);
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extern void dac_enable(bool enable);
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extern void dac_line_in(bool enable);
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extern void dac_init(void);
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#endif /* _DAC3550A_H_ */
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