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/***************************************************************************
* __________ __ ___
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
* Copyright (C) 2014 by Ilia Sergachev: Initial Rockbox port to iBasso DX50
* Copyright (C) 2014 by Mario Basister: iBasso DX90 port
* Copyright (C) 2014 by Simon Rothen: Initial Rockbox repository submission, additional features
* Copyright (C) 2014 by Udo Schläpfer: Code clean up, additional features
*
* 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 _CODEC_DX50_H_
#define _CODEC_DX50_H_
#define AUDIOHW_CAPS (MONO_VOL_CAP | FILTER_ROLL_OFF_CAP)
/*
http://www.wolfsonmicro.com/media/76425/WM8740.pdf
0.5 * ( x - 255 ) = ydB 1 <= x <= 255
mute x = 0
x = 255 -> 0dB
.
.
.
x = 2 -> -126.5dB
x = 1 -> -127dB
x = 0 -> -128dB
See audiohw.h, sound.c.
*/
AUDIOHW_SETTING(VOLUME, "dB", 0, 1, -128, 0, -30)
/* 1: slow roll off, 0: sharp roll off, sharp roll off default */
AUDIOHW_SETTING(FILTER_ROLL_OFF, "", 0, 1, 0, 1, 0)
#endif
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