forked from len0rd/rockbox
a3fe07ff12
Add HW volume control via ES9018K2M, and reorganize eros_qn_codec.c/.h, audiohw-erosqnative.c. This automatically detects the presence of the new DAC and uses its hardware volume scaling. If not present, use same SWVOL we have been using so far. Add debug menu readout of SWVOL/I2C result. Break out es9018k2m stuff into its own file so that maybe it can be useful to other ports. Note that we may need to get smarter about detecting the DAC type if/when another model emerges. Change-Id: I586a1cf7f150dd6b4e221157859825952840af56
62 lines
No EOL
1.7 KiB
C
62 lines
No EOL
1.7 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 = PCM5102A_VOLUME_MIN;
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static long int vol_r_hw = PCM5102A_VOLUME_MIN;
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int es9018k2m_present_flag = 0;
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void eros_qn_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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void eros_qn_set_last_vol(long int vol_l, long int vol_r)
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{
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vol_l_hw = vol_l;
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vol_r_hw = vol_r;
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}
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int eros_qn_get_volume_limit(void)
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{
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return (global_settings.volume_limit * 10);
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}
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void eros_qn_switch_output(int select)
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{
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if (select == 0)
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{
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gpio_set_level(GPIO_STEREOSW_SEL, 0);
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}
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else
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{
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gpio_set_level(GPIO_STEREOSW_SEL, 1);
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}
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} |