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f5a5b94686
Implements double-buffered volume, balance and prescaling control in the main PCM driver when HAVE_SW_VOLUME_CONTROL is defined ensuring that all PCM is volume controlled and level changes are low in latency. Supports -73 to +6 dB using a 15-bit factor so that no large-integer math is needed. Low-level hardware drivers do not have to implement it themselves but parameters can be changed (currently defined in pcm-internal.h) to work best with a particular SoC or to provide different volume ranges. Volume and prescale calls should be made in the codec driver. It should appear as a normal hardware interface. PCM volume calls expect .1 dB units. Change-Id: Idf6316a64ef4fb8abcede10707e1e6c6d01d57db Reviewed-on: http://gerrit.rockbox.org/423 Reviewed-by: Michael Sevakis <jethead71@rockbox.org> Tested-by: Michael Sevakis <jethead71@rockbox.org>
145 lines
4.5 KiB
C
145 lines
4.5 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) 2005 by Linus Nielsen Feltzing
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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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#ifndef SOUND_H
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#define SOUND_H
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#include <inttypes.h>
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#include <audiohw.h>
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#if CONFIG_CODEC == SWCODEC
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enum {
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DSP_CALLBACK_SET_PRESCALE = 0,
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DSP_CALLBACK_SET_BASS,
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DSP_CALLBACK_SET_TREBLE,
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DSP_CALLBACK_SET_CHANNEL_CONFIG,
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DSP_CALLBACK_SET_STEREO_WIDTH,
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};
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#endif
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typedef void sound_set_type(int value);
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const char *sound_unit(int setting);
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int sound_numdecimals(int setting);
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int sound_steps(int setting);
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int sound_min(int setting);
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int sound_max(int setting);
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int sound_default(int setting);
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sound_set_type* sound_get_fn(int setting);
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void sound_set_dsp_callback(int (*func)(int, intptr_t));
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void sound_set_volume(int value);
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void sound_set_balance(int value);
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void sound_set_bass(int value);
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void sound_set_treble(int value);
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void sound_set_channels(int value);
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void sound_set_stereo_width(int value);
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#if defined(AUDIOHW_HAVE_BASS_CUTOFF)
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void sound_set_bass_cutoff(int value);
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#endif
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#if defined(AUDIOHW_HAVE_TREBLE_CUTOFF)
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void sound_set_treble_cutoff(int value);
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#endif
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#if defined(AUDIOHW_HAVE_DEPTH_3D)
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void sound_set_depth_3d(int value);
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#endif
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#ifdef AUDIOHW_HAVE_EQ
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/*
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* band = SOUND_EQ_BANDb
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* band_setting = AUDIOHW_EQ_s
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*
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* Returns SOUND_EQ_BANDb_s or -1 if it doesn't exist.
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*
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* b: band number
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* s: one of GAIN, FREQUENCY, WIDTH
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*/
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int sound_enum_hw_eq_band_setting(unsigned int band,
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unsigned int band_setting);
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/* Band1 implied */
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void sound_set_hw_eq_band1_gain(int value);
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#ifdef AUDIOHW_HAVE_EQ_BAND1_FREQUENCY
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void sound_set_hw_eq_band1_frequency(int value);
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#endif
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#ifdef AUDIOHW_HAVE_EQ_BAND2
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void sound_set_hw_eq_band2_gain(int value);
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#ifdef AUDIOHW_HAVE_EQ_BAND2_FREQUENCY
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void sound_set_hw_eq_band2_frequency(int value);
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#endif
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#ifdef AUDIOHW_HAVE_EQ_BAND2_WIDTH
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void sound_set_hw_eq_band2_width(int value);
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#endif
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#endif /* AUDIOHW_HAVE_EQ_BAND2 */
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#ifdef AUDIOHW_HAVE_EQ_BAND3
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/* Band 3 */
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void sound_set_hw_eq_band3_gain(int value);
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#ifdef AUDIOHW_HAVE_EQ_BAND3_FREQUENCY
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void sound_set_hw_eq_band3_frequency(int value);
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#endif
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#if defined(AUDIOHW_HAVE_EQ_BAND3_WIDTH)
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void sound_set_hw_eq_band3_width(int value);
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#endif
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#endif /* AUDIOHW_HAVE_EQ_BAND3 */
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#ifdef AUDIOHW_HAVE_EQ_BAND4
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void sound_set_hw_eq_band4_gain(int value);
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#ifdef AUDIOHW_HAVE_EQ_BAND4_FREQUENCY
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void sound_set_hw_eq_band4_frequency(int value);
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#endif
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#ifdef AUDIOHW_HAVE_EQ_BAND4_WIDTH
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void sound_set_hw_eq_band4_width(int value);
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#endif
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#endif /* AUDIOHW_HAVE_EQ_BAND4 */
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#ifdef AUDIOHW_HAVE_EQ_BAND5
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void sound_set_hw_eq_band5_gain(int value);
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#ifdef AUDIOHW_HAVE_EQ_BAND5_FREQUENCY
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void sound_set_hw_eq_band5_frequency(int value);
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#endif
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#endif /* AUDIOHW_HAVE_EQ_BAND5 */
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#endif /* AUDIOHW_HAVE_EQ */
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#if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
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void sound_set_loudness(int value);
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void sound_set_avc(int value);
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void sound_set_mdb_strength(int value);
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void sound_set_mdb_harmonics(int value);
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void sound_set_mdb_center(int value);
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void sound_set_mdb_shape(int value);
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void sound_set_mdb_enable(int value);
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void sound_set_superbass(int value);
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#endif /* (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F) */
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void sound_set(int setting, int value);
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int sound_val2phys(int setting, int value);
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#if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
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void sound_set_pitch(int32_t pitch);
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int32_t sound_get_pitch(void);
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#endif
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#ifdef HAVE_PITCHCONTROL
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/* precision of the pitch and speed variables */
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/* One zero per decimal (100 means two decimal places */
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#define PITCH_SPEED_PRECISION 100L
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#define PITCH_SPEED_100 (100L * PITCH_SPEED_PRECISION) /* 100% speed */
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#endif /* HAVE_PITCHCONTROL */
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#endif
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