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/***************************************************************************
* __________ __ ___
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
* Copyright (C) 2014 by Ilia Sergachev: Initial Rockbox port to iBasso DX50
* Copyright (C) 2014 by Mario Basister: iBasso DX90 port
* Copyright (C) 2014 by Simon Rothen: Initial Rockbox repository submission, additional features
* Copyright (C) 2014 by Udo Schläpfer: Code clean up, additional features
*
* 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.
*
****************************************************************************/
#include "config.h"
#include "debug.h"
#include "pcm_sw_volume.h"
#include "settings.h"
#include "debug-ibasso.h"
#include "pcm-ibasso.h"
void audiohw_close(void)
{
TRACE;
pcm_close_device();
}
void set_software_volume(void)
{
/* -73dB (?) minimum software volume in decibels. See pcm-internal.h. */
static const int SW_VOLUME_MIN = 730;
int sw_volume_l = 0;
int sw_volume_r = 0;
if(global_settings.balance > 0)
{
if(global_settings.balance == 100)
{
sw_volume_l = PCM_MUTE_LEVEL;
}
else
{
sw_volume_l -= SW_VOLUME_MIN * global_settings.balance / 100;
}
}
else if(global_settings.balance < 0)
{
if(global_settings.balance == -100)
{
sw_volume_r = PCM_MUTE_LEVEL;
}
else
{
sw_volume_r = SW_VOLUME_MIN * global_settings.balance / 100;
}
}
DEBUGF("DEBUG %s: global_settings.balance: %d, sw_volume_l: %d, sw_volume_r: %d.",
__func__,
global_settings.balance,
sw_volume_l,
sw_volume_r);
/* Emulate balance with software volume. */
pcm_set_master_volume(sw_volume_l, sw_volume_r);
}
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