77a98ada12
An oversight on my part meant that setting channel balance to 100% L or 100% R would mute both channels - this logic will prevent that. Change-Id: I912c2745784fbbbd7a773e1234179801f2ca4680
89 lines
2.5 KiB
C
89 lines
2.5 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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* $Id$
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*
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* Copyright (C) 2021 Andrew Ryabinin, Dana Conrad
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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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#include "system.h"
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#include "eros_qn_codec.h"
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#include "config.h"
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#include "audio.h"
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#include "audiohw.h"
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#include "settings.h"
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#include "pcm_sw_volume.h"
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#include "gpio-x1000.h"
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static long int vol_l_hw = 0;
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static long int vol_r_hw = 0;
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/* internal: mute the headphone amp. 0 - unmuted, 1 - muted */
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void audiohw_mute_hp(int mute);
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void pcm5102_set_outputs(void)
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{
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audiohw_set_volume(vol_l_hw, vol_r_hw);
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}
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/* this makes less sense here than it does in the audiohw-*.c file,
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* but we need access to settings.h */
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void audiohw_set_volume(int vol_l, int vol_r)
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{
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int l, r;
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vol_l_hw = vol_l;
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vol_r_hw = vol_r;
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l = vol_l;
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r = vol_r;
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#if (defined(HAVE_HEADPHONE_DETECTION) && defined(HAVE_LINEOUT_DETECTION))
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/* make sure headphones aren't present - don't want to
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* blow out our eardrums cranking it to full */
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if (lineout_inserted() && !headphones_inserted())
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{
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l = r = global_settings.volume_limit * 10;
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/* mute the headphone amp if not plugged in */
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audiohw_mute_hp(1);
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}
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else
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{
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/* unmute the headphone amp when plugged in */
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audiohw_mute_hp(0);
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l = vol_l;
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r = vol_r;
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}
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#endif
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l = l <= PCM5102A_VOLUME_MIN ? PCM_MUTE_LEVEL : (l / 20);
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r = r <= PCM5102A_VOLUME_MIN ? PCM_MUTE_LEVEL : (r / 20);
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pcm_set_master_volume(l, r);
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}
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void audiohw_mute_hp(int mute)
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{
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if (mute == 0)
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{
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gpio_set_level(GPIO_MAX97220_SHDN, 1);
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}
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else
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{
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gpio_set_level(GPIO_MAX97220_SHDN, 0);
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}
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}
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