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rockbox/firmware/sound.c
Aidan MacDonald 55805e13a4 Add new audiohw capability: POWER_MODE_CAP 
This allows the user to make use of the DAC's power-saving abilities.
The two modes are "high performance" and "battery saver". This feature
is supported by the AK4376 DAC in the upcoming FiiO M3K port.

The setting is only a manual toggle right now, but in the future it
could be hooked up to the battery level (via another setting) so it
can be toggled automatically when the battery gets too low.

Change-Id: I482af6e2f969fcbdeb3411bd3ff91f866b12d027
2021-03-22 13:00:11 +00:00

653 lines
17 KiB
C
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 by Linus Nielsen Feltzing
* Copyright (C) 2007 by Christian Gmeiner
* Copyright (C) 2013 by Michael Sevakis
*
* 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.
*
****************************************************************************/
/* Indicate it's the sound.c file which affects compilation of audiohw.h */
#define AUDIOHW_IS_SOUND_C
#include "config.h"
#include "system.h"
#include "sound.h"
#ifndef BOOTLOADER
#include "settings.h" /* sound_current */
#endif
#ifdef HAVE_SW_VOLUME_CONTROL
#include "pcm_sw_volume.h"
#endif /* HAVE_SW_VOLUME_CONTROL */
/* Define sound_setting_entries table */
#define AUDIOHW_SOUND_SETTINGS_ENTRIES
#include "audiohw_settings.h"
/* Implements sound_val2phys */
#define AUDIOHW_SOUND_SETTINGS_VAL2PHYS
#include "audiohw_settings.h"
/* Returns current sound settings from global_settings */
#define SOUND_CUR_SET(name, var) \
case SOUND_##name: return var;
extern bool audio_is_initialized;
static const struct sound_setting_entry * get_setting_entry(int setting)
{
static const struct sound_settings_info default_info =
{ "", 0, 0, 0, 0, 0 };
static const struct sound_setting_entry default_entry =
{ &default_info, NULL };
if ((unsigned)setting >= ARRAYLEN(sound_setting_entries))
return &default_entry;
const struct sound_setting_entry *e = &sound_setting_entries[setting];
return e->info ? e : &default_entry; /* setting valid but not in table? */
}
static const struct sound_settings_info * get_settings_info(int setting)
{
return get_setting_entry(setting)->info;
}
const char * sound_unit(int setting)
{
return get_settings_info(setting)->unit;
}
int sound_numdecimals(int setting)
{
return get_settings_info(setting)->numdecimals;
}
int sound_steps(int setting)
{
return get_settings_info(setting)->steps;
}
int sound_min(int setting)
{
return get_settings_info(setting)->minval;
}
int sound_max(int setting)
{
return get_settings_info(setting)->maxval;
}
int sound_default(int setting)
{
return get_settings_info(setting)->defaultval;
}
int sound_num_decimals(int setting)
{
return get_settings_info(setting)->numdecimals;
}
sound_set_type * sound_get_fn(int setting)
{
return get_setting_entry(setting)->function;
}
void sound_set(int setting, int value)
{
sound_set_type *sound_set_val = sound_get_fn(setting);
if (sound_set_val)
sound_set_val(value);
}
int sound_current(int setting)
{
switch(setting)
{
#ifndef BOOTLOADER
#ifndef PLATFORM_HAS_VOLUME_CHANGE
SOUND_CUR_SET(VOLUME, global_settings.volume)
#endif
#if defined(AUDIOHW_HAVE_BASS)
SOUND_CUR_SET(BASS, global_settings.bass)
#endif
#if defined(AUDIOHW_HAVE_TREBLE)
SOUND_CUR_SET(TREBLE, global_settings.treble)
#endif
SOUND_CUR_SET(BALANCE, global_settings.balance)
SOUND_CUR_SET(CHANNELS, global_settings.channel_config)
SOUND_CUR_SET(STEREO_WIDTH, global_settings.stereo_width)
#if defined(AUDIOHW_HAVE_BASS_CUTOFF)
SOUND_CUR_SET(BASS_CUTOFF, global_settings.bass_cutoff)
#endif
#if defined(AUDIOHW_HAVE_TREBLE_CUTOFF)
SOUND_CUR_SET(TREBLE_CUTOFF, global_settings.treble_cutoff)
#endif
#if defined(AUDIOHW_HAVE_DEPTH_3D)
SOUND_CUR_SET(DEPTH_3D, global_settings.depth_3d)
#endif
#if defined(AUDIOHW_HAVE_FILTER_ROLL_OFF)
SOUND_CUR_SET(FILTER_ROLL_OFF, global_settings.roll_off)
#endif
#if defined(AUDIOHW_HAVE_POWER_MODE)
SOUND_CUR_SET(POWER_MODE, global_settings.power_mode)
#endif
#if 0 /*WRONG -- these need to index the hw_eq_bands[AUDIOHW_EQ_BAND_NUM] struct*/
/* Hardware EQ tone controls */
#if defined(AUDIOHW_HAVE_EQ)
SOUND_CUR_SET(EQ_BAND1_GAIN, global_settings.hw_eq_band1_gain)
#if defined(AUDIOHW_HAVE_EQ_BAND1_FREQUENCY)
SOUND_CUR_SET(EQ_BAND1_FREQUENCY, global_settings.hw_eq_band1_frequency)
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND2)
SOUND_CUR_SET(EQ_BAND2_GAIN, global_settings.hw_eq_band2_gain)
#if defined(AUDIOHW_HAVE_EQ_BAND2_FREQUENCY)
SOUND_CUR_SET(EQ_BAND2_FREQUENCY, global_settings.hw_eq_band2_frequency)
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND2_WIDTH)
SOUND_CUR_SET(EQ_BAND2_WIDTH, global_settings.hw_eq_band2_width)
#endif
#endif /* AUDIOHW_HAVE_EQ_BAND2 */
#if defined(AUDIOHW_HAVE_EQ_BAND3)
SOUND_CUR_SET(EQ_BAND3_GAIN, global_settings.hw_eq_band3_gain)
#if defined(AUDIOHW_HAVE_EQ_BAND3_FREQUENCY)
SOUND_CUR_SET(EQ_BAND3_FREQUENCY, global_settings.hw_eq_band3_frequency)
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND3_WIDTH)
SOUND_CUR_SET(EQ_BAND3_WIDTH, global_settings.hw_eq_band3_width)
#endif
#endif /* AUDIOHW_HAVE_EQ_BAND3 */
#if defined(AUDIOHW_HAVE_EQ_BAND4)
SOUND_CUR_SET(EQ_BAND4_GAIN, global_settings.hw_eq_band4_gain)
#if defined(AUDIOHW_HAVE_EQ_BAND4_FREQUENCY)
SOUND_CUR_SET(EQ_BAND4_FREQUENCY, global_settings.hw_eq_band4_frequency)
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND4_WIDTH)
SOUND_CUR_SET(EQ_BAND4_WIDTH, global_settings.hw_eq_band4_width)
#endif
#endif /* AUDIOHW_HAVE_EQ_BAND4 */
#if defined(AUDIOHW_HAVE_EQ_BAND5)
SOUND_CUR_SET(EQ_BAND5_GAIN, global_settings.hw_eq_band5_gain)
#if defined(AUDIOHW_HAVE_EQ_BAND5_FREQUENCY)
SOUND_CUR_SET(EQ_BAND5_FREQUENCY, global_settings.hw_eq_band5_frequency)
#endif
#endif /* AUDIOHW_HAVE_EQ_BAND5 */
#endif /* AUDIOHW_HAVE_EQ */
#endif /*IF 0*/
#endif /*ndef BOOTLOADER*/
#ifdef INT_MIN
default:
return INT_MIN;
#else
default:
return -32768;
#endif
} /* switch(setting) */
}/* sound_current */
#if !defined(AUDIOHW_HAVE_CLIPPING)
/*
* The prescaler compensates for any kind of boosts, to prevent clipping.
*
* It's basically just a measure to make sure that audio does not clip during
* tone controls processing, like if i want to boost bass 12 dB, i can decrease
* the audio amplitude by -12 dB before processing, then increase master gain
* by 12 dB after processing.
*/
/* Return the sound value scaled to centibels (tenth-decibels) */
static int sound_value_to_cb(int setting, int value)
{
int shift = 1 - sound_numdecimals(setting);
if (shift < 0) do { value /= 10; } while (++shift);
if (shift > 0) do { value *= 10; } while (--shift);
return value;
}
static struct
{
int volume; /* tenth dB */
int balance; /* percent */
#if defined(AUDIOHW_HAVE_BASS)
int bass; /* tenth dB */
#endif
#if defined(AUDIOHW_HAVE_TREBLE)
int treble; /* tenth dB */
#endif
#if defined(AUDIOHW_HAVE_EQ)
int eq_gain[AUDIOHW_EQ_BAND_NUM]; /* tenth dB */
#endif
} sound_prescaler;
#if defined(AUDIOHW_HAVE_BASS) || defined (AUDIOHW_HAVE_TREBLE) \
|| defined(AUDIOHW_HAVE_EQ)
#define TONE_PRESCALER
#endif
static void set_prescaled_volume(void)
{
#if defined(TONE_PRESCALER) || !defined(AUDIOHW_HAVE_MONO_VOLUME)
const int minvol = sound_value_to_cb(SOUND_VOLUME, sound_min(SOUND_VOLUME));
#endif
int volume = sound_prescaler.volume;
#if defined(TONE_PRESCALER)
int prescale = 0;
/* Note: Having Tone + EQ isn't prohibited */
#if defined(AUDIOHW_HAVE_BASS) && defined(AUDIOHW_HAVE_TREBLE)
prescale = MAX(sound_prescaler.bass, sound_prescaler.treble);
#endif
#if defined(AUDIOHW_HAVE_EQ)
for (int i = 0; i < AUDIOHW_EQ_BAND_NUM; i++)
prescale = MAX(sound_prescaler.eq_gain[i], prescale);
#endif
if (prescale < 0)
prescale = 0; /* no need to prescale if we don't boost
bass, treble or eq band */
/* Gain up the analog volume to compensate the prescale gain reduction,
* but if this would push the volume over the top, reduce prescaling
* instead (might cause clipping). */
const int maxvol = sound_value_to_cb(SOUND_VOLUME, sound_max(SOUND_VOLUME));
if (volume + prescale > maxvol)
prescale = maxvol - volume;
audiohw_set_prescaler(prescale);
if (volume <= minvol)
prescale = 0; /* Make sure the audio gets muted */
#ifndef AUDIOHW_HAVE_MONO_VOLUME
/* At the moment, such targets have lousy volume resolution and so minute
boost won't work how we'd like */
volume += prescale;
#endif
#endif /* TONE_PRESCALER */
#if defined(AUDIOHW_HAVE_MONO_VOLUME)
audiohw_set_volume(volume);
#else /* Stereo volume */
int l = volume, r = volume;
/* Balance the channels scaled by the current volume and min volume */
int balance = sound_prescaler.balance; /* percent */
if (balance > 0)
{
l -= (l - minvol) * balance / 100;
}
else if (balance < 0)
{
r += (r - minvol) * balance / 100;
}
audiohw_set_volume(l, r);
#endif /* AUDIOHW_HAVE_MONO_VOLUME */
#if defined(AUDIOHW_HAVE_LINEOUT)
/* For now, lineout stays at unity */
audiohw_set_lineout_volume(0, 0);
#endif /* AUDIOHW_HAVE_LINEOUT */
}
#endif /* AUDIOIHW_HAVE_CLIPPING */
void sound_set_volume(int value)
{
if (!audio_is_initialized)
return;
#if defined(AUDIOHW_HAVE_CLIPPING)
audiohw_set_volume(value);
#else
sound_prescaler.volume = sound_value_to_cb(SOUND_VOLUME, value);
set_prescaled_volume();
#endif
}
void sound_set_balance(int value)
{
if (!audio_is_initialized)
return;
#if defined(AUDIOHW_HAVE_BALANCE)
audiohw_set_balance(value);
#else
sound_prescaler.balance = value;
set_prescaled_volume();
#endif
}
#if defined(AUDIOHW_HAVE_BASS)
void sound_set_bass(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_bass(value);
#if !defined(AUDIOHW_HAVE_CLIPPING)
sound_prescaler.bass = sound_value_to_cb(SOUND_BASS, value);
set_prescaled_volume();
#endif
}
#endif /* AUDIOHW_HAVE_BASS */
#if defined(AUDIOHW_HAVE_TREBLE)
void sound_set_treble(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_treble(value);
#if !defined(AUDIOHW_HAVE_CLIPPING)
sound_prescaler.treble = sound_value_to_cb(SOUND_TREBLE, value);
set_prescaled_volume();
#endif
}
#endif /* AUDIOHW_HAVE_TREBLE */
#if defined(AUDIOHW_HAVE_BASS_CUTOFF)
void sound_set_bass_cutoff(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_bass_cutoff(value);
}
#endif /* AUDIOHW_HAVE_BASS_CUTOFF */
#if defined(AUDIOHW_HAVE_TREBLE_CUTOFF)
void sound_set_treble_cutoff(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_treble_cutoff(value);
}
#endif /* AUDIOHW_HAVE_TREBLE_CUTOFF */
void sound_set_channels(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_channel(value);
}
void sound_set_stereo_width(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_stereo_width(value);
}
#if defined(AUDIOHW_HAVE_DEPTH_3D)
void sound_set_depth_3d(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_depth_3d(value);
}
#endif /* AUDIOHW_HAVE_DEPTH_3D */
#if defined(AUDIOHW_HAVE_FILTER_ROLL_OFF)
void sound_set_filter_roll_off(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_filter_roll_off(value);
}
#endif
#if defined(AUDIOHW_HAVE_POWER_MODE)
void sound_set_power_mode(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_power_mode(value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ)
int sound_enum_hw_eq_band_setting(unsigned int band,
unsigned int band_setting)
{
static const int8_t
sound_hw_eq_band_setting[AUDIOHW_EQ_SETTING_NUM][AUDIOHW_EQ_BAND_NUM] =
{
[AUDIOHW_EQ_GAIN] =
{
[0 ... AUDIOHW_EQ_BAND_NUM-1] = -1,
[AUDIOHW_EQ_BAND1] = SOUND_EQ_BAND1_GAIN,
#ifdef AUDIOHW_HAVE_EQ_BAND2
[AUDIOHW_EQ_BAND2] = SOUND_EQ_BAND2_GAIN,
#endif
#ifdef AUDIOHW_HAVE_EQ_BAND3
[AUDIOHW_EQ_BAND3] = SOUND_EQ_BAND3_GAIN,
#endif
#ifdef AUDIOHW_HAVE_EQ_BAND4
[AUDIOHW_EQ_BAND4] = SOUND_EQ_BAND4_GAIN,
#endif
#ifdef AUDIOHW_HAVE_EQ_BAND5
[AUDIOHW_EQ_BAND5] = SOUND_EQ_BAND5_GAIN,
#endif
},
#ifdef AUDIOHW_HAVE_EQ_FREQUENCY
[AUDIOHW_EQ_FREQUENCY] =
{
[0 ... AUDIOHW_EQ_BAND_NUM-1] = -1,
#ifdef AUDIOHW_HAVE_EQ_BAND1_FREQUENCY
[AUDIOHW_EQ_BAND1] = SOUND_EQ_BAND1_FREQUENCY,
#endif
#ifdef AUDIOHW_HAVE_EQ_BAND2_FREQUENCY
[AUDIOHW_EQ_BAND2] = SOUND_EQ_BAND2_FREQUENCY,
#endif
#ifdef AUDIOHW_HAVE_EQ_BAND3_FREQUENCY
[AUDIOHW_EQ_BAND3] = SOUND_EQ_BAND3_FREQUENCY,
#endif
#ifdef AUDIOHW_HAVE_EQ_BAND4_FREQUENCY
[AUDIOHW_EQ_BAND4] = SOUND_EQ_BAND4_FREQUENCY,
#endif
#ifdef AUDIOHW_HAVE_EQ_BAND5_FREQUENCY
[AUDIOHW_EQ_BAND5] = SOUND_EQ_BAND5_FREQUENCY,
#endif
},
#endif /* AUDIOHW_HAVE_EQ_FREQUENCY */
#ifdef AUDIOHW_HAVE_EQ_WIDTH
[AUDIOHW_EQ_WIDTH] =
{
[0 ... AUDIOHW_EQ_BAND_NUM-1] = -1,
#ifdef AUDIOHW_HAVE_EQ_BAND2_WIDTH
[AUDIOHW_EQ_BAND2] = SOUND_EQ_BAND2_WIDTH,
#endif
#ifdef AUDIOHW_HAVE_EQ_BAND3_WIDTH
[AUDIOHW_EQ_BAND3] = SOUND_EQ_BAND3_WIDTH,
#endif
#ifdef AUDIOHW_HAVE_EQ_BAND4_WIDTH
[AUDIOHW_EQ_BAND4] = SOUND_EQ_BAND4_WIDTH,
#endif
},
#endif /* AUDIOHW_HAVE_EQ_WIDTH */
};
if (band < AUDIOHW_EQ_BAND_NUM && band_setting < AUDIOHW_EQ_SETTING_NUM)
return sound_hw_eq_band_setting[band_setting][band];
return -1;
}
static void sound_set_hw_eq_band_gain(unsigned int band, int value)
{
if (!audio_is_initialized)
return;
audiohw_set_eq_band_gain(band, value);
#if !defined (AUDIOHW_HAVE_CLIPPING)
int setting = sound_enum_hw_eq_band_setting(band, AUDIOHW_EQ_GAIN);
sound_prescaler.eq_gain[band] = sound_value_to_cb(setting, value);
set_prescaled_volume();
#endif /* AUDIOHW_HAVE_CLIPPING */
}
void sound_set_hw_eq_band1_gain(int value)
{
sound_set_hw_eq_band_gain(AUDIOHW_EQ_BAND1, value);
}
#if defined(AUDIOHW_HAVE_EQ_BAND2)
void sound_set_hw_eq_band2_gain(int value)
{
sound_set_hw_eq_band_gain(AUDIOHW_EQ_BAND2, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND3)
void sound_set_hw_eq_band3_gain(int value)
{
sound_set_hw_eq_band_gain(AUDIOHW_EQ_BAND3, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND4)
void sound_set_hw_eq_band4_gain(int value)
{
sound_set_hw_eq_band_gain(AUDIOHW_EQ_BAND4, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND5)
void sound_set_hw_eq_band5_gain(int value)
{
sound_set_hw_eq_band_gain(AUDIOHW_EQ_BAND5, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND1_FREQUENCY)
void sound_set_hw_eq_band1_frequency(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_eq_band_frequency(AUDIOHW_EQ_BAND1, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND2_FREQUENCY)
void sound_set_hw_eq_band2_frequency(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_eq_band_frequency(AUDIOHW_EQ_BAND2, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND3_FREQUENCY)
void sound_set_hw_eq_band3_frequency(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_eq_band_frequency(AUDIOHW_EQ_BAND3, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND4_FREQUENCY)
void sound_set_hw_eq_band4_frequency(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_eq_band_frequency(AUDIOHW_EQ_BAND4, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND5_FREQUENCY)
void sound_set_hw_eq_band5_frequency(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_eq_band_frequency(AUDIOHW_EQ_BAND5, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND2_WIDTH)
void sound_set_hw_eq_band2_width(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_eq_band_width(AUDIOHW_EQ_BAND2, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND3_WIDTH)
void sound_set_hw_eq_band3_width(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_eq_band_width(AUDIOHW_EQ_BAND3, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND4_WIDTH)
void sound_set_hw_eq_band4_width(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_eq_band_width(AUDIOHW_EQ_BAND4, value);
}
#endif
#endif /* AUDIOHW_HAVE_EQ */
#if defined(HAVE_PITCHCONTROL)
void sound_set_pitch(int32_t pitch)
{
if (!audio_is_initialized)
return;
audiohw_set_pitch(pitch);
}
int32_t sound_get_pitch(void)
{
if (!audio_is_initialized)
return PITCH_SPEED_100;
return audiohw_get_pitch();
}
#endif /* HAVE_PITCHCONTROL */
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