rockbox/firmware/target/arm/imx233/sansa-fuzeplus/audio-target.h
Amaury Pouly 5e2600eb3a imx233: make microphone bias, bias pin and resistor configurable
This clearly fixes recording on targets where the bias pin was wrong. It may
also improve recording on targets where the bias voltage was wrong. I was unable
to find those parameters on the ZEN Mozaic, which fallback to default values.

Change-Id: Ifb5f823c9cbd01f0d9a80fa5d49d93972c8b7cfe
2016-09-21 00:36:51 +01:00

30 lines
1.2 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2013 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 __audio_target__
#define __audio_target__
#define IMX233_AUDIO_COUPLING_MODE ACM_CAPLESS
#define IMX233_AUDIO_MIC_SELECT 1 /* lradc1 */
#define IMX233_AUDIO_MIC_BIAS 4 /* 2.21V */
#define IMX233_AUDIO_MIC_RESISTOR 2KOhm
#endif /* __audio_target__ */