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https://github.com/Rockbox/rockbox.git
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0c7b787398
This is going right in since it's long overdue. If anything is goofed, drop me a line or just tweak it yourself if you know what's wrong. :-) Make HW/SW codec interface more uniform when emulating HW functionality on SWCODEC for functions such as "audiohw_set_pitch". The firmware-to- DSP plumbing is in firmware/drivers/audiohw-swcodec.c. "sound_XXX" APIs are all in sound.c with none in DSP code any longer. Reduce number of settings definitions needed by each codec by providing defaults for common ones like balance, channels and SW tone controls. Remove need for separate SIM code and tables and add virtual codec header for hosted targets. Change-Id: I3f23702bca054fc9bda40f49824ce681bb7f777b
145 lines
4 KiB
C
145 lines
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 © 2010 Thomas Martitz
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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 <SDL_audio.h>
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#include "config.h"
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#include "audiohw.h"
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#include "pcm_sampr.h"
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/**
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* Audio Hardware api. Make them do nothing as we cannot properly simulate with
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* SDL. if we used DSP we would run code that doesn't actually run on the target
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**/
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#ifdef HAVE_SW_VOLUME_CONTROL
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#include "pcm_sw_volume.h"
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void audiohw_set_volume(int vol_l, int vol_r)
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{
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pcm_set_master_volume(vol_l, vol_r);
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}
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#else /* ndef HAVE_SW_VOLUME_CONTROL */
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extern void pcm_set_mixer_volume(int);
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void audiohw_set_volume(int volume)
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{
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#if CONFIG_CODEC == SWCODEC
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#if !(CONFIG_PLATFORM & PLATFORM_MAEMO5)
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if (volume < VOLUME_MIN)
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volume = 0;
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else
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volume = SDL_MIX_MAXVOLUME * (volume - VOLUME_MIN + ONE_DB) /
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(VOLUME_RANGE + ONE_DB);
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#endif /* !(CONFIG_PLATFORM & PLATFORM_MAEMO5) */
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pcm_set_mixer_volume(volume);
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#endif /* CONFIG_CODEC == SWCODEC */
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(void)volume;
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}
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#endif /* HAVE_SW_VOLUME_CONTROL */
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/**
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* stubs here, for the simulator
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**/
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#if defined(AUDIOHW_HAVE_PRESCALER)
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void audiohw_set_prescaler(int value)
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{
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#ifdef HAVE_SW_VOLUME_CONTROL
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pcm_set_prescaler(value);
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#endif
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(void)value;
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}
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#endif
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#if defined(AUDIOHW_HAVE_BALANCE)
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void audiohw_set_balance(int value) { (void)value; }
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#endif
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#ifndef HAVE_SW_TONE_CONTROLS
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#if defined(AUDIOHW_HAVE_BASS)
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void audiohw_set_bass(int value) { (void)value; }
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#endif
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#if defined(AUDIOHW_HAVE_TREBLE)
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void audiohw_set_treble(int value) { (void)value; }
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#endif
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#endif /* HAVE_SW_TONE_CONTROLS */
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#if CONFIG_CODEC != SWCODEC
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void audiohw_set_channel(int value) { (void)value; }
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void audiohw_set_stereo_width(int value){ (void)value; }
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#endif
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#if defined(AUDIOHW_HAVE_BASS_CUTOFF)
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void audiohw_set_bass_cutoff(int value) { (void)value; }
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#endif
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#if defined(AUDIOHW_HAVE_TREBLE_CUTOFF)
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void audiohw_set_treble_cutoff(int value){ (void)value; }
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#endif
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/* EQ-based tone controls */
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#if defined(AUDIOHW_HAVE_EQ)
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void audiohw_set_eq_band_gain(unsigned int band, int value)
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{ (void)band; (void)value; }
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#endif
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#if defined(AUDIOHW_HAVE_EQ_FREQUENCY)
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void audiohw_set_eq_band_frequency(unsigned int band, int value)
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{ (void)band; (void)value; }
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#endif
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#if defined(AUDIOHW_HAVE_EQ_WIDTH)
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void audiohw_set_eq_band_width(unsigned int band, int value)
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{ (void)band; (void)value; }
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#endif
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#if defined(AUDIOHW_HAVE_DEPTH_3D)
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void audiohw_set_depth_3d(int value)
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{ (void)value; }
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#endif
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#if defined(AUDIOHW_HAVE_LINEOUT)
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void audiohw_set_lineout_volume(int vol_l, int vol_r)
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{ (void)vol_l; (void)vol_r; }
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#endif
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void audiohw_close(void) {}
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#ifdef CONFIG_SAMPR_TYPES
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unsigned int pcm_sampr_to_hw_sampr(unsigned int samplerate,
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unsigned int type)
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{ return samplerate; (void)type; }
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#endif /* CONFIG_SAMPR_TYPES */
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#if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
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int mas_codec_readreg(int reg)
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{
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(void)reg;
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return 0;
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}
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int mas_codec_writereg(int reg, unsigned int val)
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{
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(void)reg;
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(void)val;
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return 0;
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}
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int mas_writemem(int bank, int addr, const unsigned long* src, int len)
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{
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(void)bank;
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(void)addr;
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(void)src;
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(void)len;
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return 0;
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}
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#endif
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