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16b0098256
A small negative offset seems to silence all play/pause clicking on the PCM5102A. Also adding PCM soft muting, and muting the headphone amp when the headphones are detected as removed. This has been tested to not cause any unintended side effects on the line out. Also confirmed the numerical dB values are (approx.) correct. Change-Id: I689d68887c86add9cc5e0ccb0c7de01aaa69b4d9
89 lines
2.4 KiB
C
89 lines
2.4 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;
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r = r <= PCM5102A_VOLUME_MIN ? PCM_MUTE_LEVEL : r;
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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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