rockbox/firmware/export/imx233-codec.h
Jean-Louis Biasini 89afa32584 fuze+: fix volume bottom limit
Even with volume at minimal fuze+ was still playing sound pretty loud.
this fix it.

Change-Id: I5b18e9c39ced240eebb0457c433b0ca150668860
Reviewed-on: http://gerrit.rockbox.org/621
Reviewed-by: Amaury Pouly <amaury.pouly@gmail.com>
2013-09-18 23:09:44 +02:00

44 lines
2 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2011 by Amaury Pouly
*
* 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 __IMX233_CODEC_H_
#define __IMX233_CODEC_H_
/* i.MX233 can boost up to 6dB in DAC mode and 12dB in line mode. Since mic/line
* already have adjustable gain, keep lowest of both. With chained DAC volume
* and headphone volume, the i.MX233 can achieve < -100dB but stay at -100dB. */
#define AUDIOHW_CAPS (DEPTH_3D_CAP | BASS_CAP | TREBLE_CAP | \
LIN_GAIN_CAP | MIC_GAIN_CAP)
AUDIOHW_SETTING(VOLUME, "dB", 0, 1, -100, 12, -25)
/* HAVE_SW_TONE_CONTROLS */
#ifdef HAVE_RECORDING
/* Depending on the input, we have three available volumes to tweak:
* - adc volume: -100dB -> -0.5dB in 0.5dB steps
* - mux gain: 0dB -> 22.5dB in 1.5dB steps
* - mic gain: 0dB -> 40dB in 10dB steps (except for 10) */
AUDIOHW_SETTING(LEFT_GAIN, "dB", 0, 1, -100, 22, 0)
AUDIOHW_SETTING(RIGHT_GAIN, "dB", 0, 1, -100, 22, 0)
AUDIOHW_SETTING(MIC_GAIN, "dB", 0, 1, -100, 60, 20)
#endif /* HAVE_RECORDING */
/* i.MX233 has four settings: 0dB, 3dB, 4.5dB, 6dB so fake 1.5dB steps */
AUDIOHW_SETTING(DEPTH_3D, "dB", 1,15, 0, 60, 0)
#endif /* __IMX233_CODEC_H_ */