rockbox/firmware/export/mas35xx.h

/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Implementation of MAS35xx audiohw api driver.
 *
 * Copyright (C) 2007 by Christian Gmeiner
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/

#ifndef _MAS35XX_H
#define _MAS35XX_H

#include "config.h"

#if CONFIG_CODEC == MAS3507D

#define VOLUME_MIN -780
#define VOLUME_MAX  180
#define AUDIOHW_CAPS (BASS_CAP | TREBLE_CAP | PRESCALER_CAP)

#else /* CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F */

/* MAS3587F and MAS3539F handle clipping prevention internally so we do not need
 * the prescaler -> CLIPPING_CAP
 */

#define VOLUME_MIN -400
#define VOLUME_MAX  600
#define AUDIOHW_CAPS (BASS_CAP | TREBLE_CAP | BALANCE_CAP | CLIPPING_CAP)

#endif


#if CONFIG_CODEC == MAS3507D

static const unsigned int bass_table[] =
{
    0x9e400, /* -15dB */
    0xa2800, /* -14dB */
    0xa7400, /* -13dB */
    0xac400, /* -12dB */
    0xb1800, /* -11dB */
    0xb7400, /* -10dB */
    0xbd400, /* -9dB */
    0xc3c00, /* -8dB */
    0xca400, /* -7dB */
    0xd1800, /* -6dB */
    0xd8c00, /* -5dB */
    0xe0400, /* -4dB */
    0xe8000, /* -3dB */
    0xefc00, /* -2dB */
    0xf7c00, /* -1dB */
    0,
    0x800,   /* 1dB */
    0x10000, /* 2dB */
    0x17c00, /* 3dB */
    0x1f800, /* 4dB */
    0x27000, /* 5dB */
    0x2e400, /* 6dB */
    0x35800, /* 7dB */
    0x3c000, /* 8dB */
    0x42800, /* 9dB */
    0x48800, /* 10dB */
    0x4e400, /* 11dB */
    0x53800, /* 12dB */
    0x58800, /* 13dB */
    0x5d400, /* 14dB */
    0x61800  /* 15dB */
};

static const unsigned int treble_table[] =
{
    0xb2c00, /* -15dB */
    0xbb400, /* -14dB */
    0xc1800, /* -13dB */
    0xc6c00, /* -12dB */
    0xcbc00, /* -11dB */
    0xd0400, /* -10dB */
    0xd5000, /* -9dB */
    0xd9800, /* -8dB */
    0xde000, /* -7dB */
    0xe2800, /* -6dB */
    0xe7e00, /* -5dB */
    0xec000, /* -4dB */
    0xf0c00, /* -3dB */
    0xf5c00, /* -2dB */
    0xfac00, /* -1dB */
    0,
    0x5400,  /* 1dB */
    0xac00,  /* 2dB */
    0x10400, /* 3dB */
    0x16000, /* 4dB */
    0x1c000, /* 5dB */
    0x22400, /* 6dB */
    0x28400, /* 7dB */
    0x2ec00, /* 8dB */
    0x35400, /* 9dB */
    0x3c000, /* 10dB */
    0x42c00, /* 11dB */
    0x49c00, /* 12dB */
    0x51800, /* 13dB */
    0x58400, /* 14dB */
    0x5f800  /* 15dB */
};

static const unsigned int prescale_table[] =
{
    0x80000,  /* 0db */
    0x8e000,  /* 1dB */
    0x9a400,  /* 2dB */
    0xa5800, /* 3dB */
    0xaf400, /* 4dB */
    0xb8000, /* 5dB */
    0xbfc00, /* 6dB */
    0xc6c00, /* 7dB */
    0xcd000, /* 8dB */
    0xd25c0, /* 9dB */
    0xd7800, /* 10dB */
    0xdc000, /* 11dB */
    0xdfc00, /* 12dB */
    0xe3400, /* 13dB */
    0xe6800, /* 14dB */
    0xe9400  /* 15dB */
};
#endif /*CONFIG_CODEC == MAS3507D*/

#endif /* _MAS35XX_H */