158 lines
4.5 KiB
C
158 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) 2009 by Bertrik Sikken
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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 "config.h"
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#include "system.h"
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#include "cpu.h"
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#include "audio.h"
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#include "audiohw.h"
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#include "sound.h"
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#include "general.h"
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int audio_channels = 2;
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#if CONFIG_CPU == AS3525
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int audio_output_source = AUDIO_SRC_PLAYBACK;
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#endif
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void audio_set_output_source(int source)
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{
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bitset32(&CGU_PERI, CGU_I2SOUT_APB_CLOCK_ENABLE);
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if ((unsigned)source >= AUDIO_NUM_SOURCES)
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source = AUDIO_SRC_PLAYBACK;
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bool loopback = source != AUDIO_SRC_PLAYBACK;
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#if CONFIG_CPU == AS3525
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loopback = loopback && audio_channels > 1;
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audio_output_source = source;
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#endif
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if (loopback)
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I2SOUT_CONTROL |= (1<<5); /* loopback from i2sin fifo */
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else
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I2SOUT_CONTROL &= ~(1<<5); /* normal i2sout */
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}
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void audio_input_mux(int source, unsigned flags)
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{
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static int last_source = AUDIO_SRC_PLAYBACK;
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#if defined(HAVE_RECORDING) && (INPUT_SRC_CAPS & SRC_CAP_FMRADIO)
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static bool last_recording = false;
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const bool recording = flags & SRCF_RECORDING;
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#else
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(void) flags;
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#endif
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switch (source)
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{
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default: /* playback - no recording */
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source = AUDIO_SRC_PLAYBACK;
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/*fallthrough*/
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case AUDIO_SRC_PLAYBACK:
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if (source != last_source)
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{
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audio_channels = 2;
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#if defined(HAVE_RECORDING) || defined(HAVE_FMRADIO_IN)
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audiohw_set_monitor(false);
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#endif
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#ifdef HAVE_RECORDING
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audiohw_disable_recording();
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#endif
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}
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break;
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#if defined(HAVE_RECORDING) && (INPUT_SRC_CAPS & SRC_CAP_MIC)
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case AUDIO_SRC_MIC: /* recording only */
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if (source != last_source)
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{
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audio_channels = 1;
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audiohw_set_monitor(false);
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audiohw_enable_recording(true); /* source mic */
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}
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break;
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#endif
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#if (INPUT_SRC_CAPS & SRC_CAP_FMRADIO)
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case AUDIO_SRC_FMRADIO: /* recording and playback */
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if (source == last_source
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#ifdef HAVE_RECORDING
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&& recording == last_recording
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#endif
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)
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break;
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audio_channels = 2;
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#ifdef HAVE_RECORDING
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last_recording = recording;
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if (recording)
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{
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audiohw_set_monitor(false);
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audiohw_enable_recording(false);
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}
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else
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#endif
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{
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#ifdef HAVE_RECORDING
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audiohw_disable_recording();
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#endif
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#if defined(HAVE_RECORDING) || defined(HAVE_FMRADIO_IN)
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audiohw_set_monitor(true); /* line 2 analog audio path */
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#endif
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}
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break;
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#endif /* (INPUT_SRC_CAPS & SRC_CAP_FMRADIO) */
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}
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last_source = source;
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#if CONFIG_CPU == AS3525
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/* Sync on behalf of change in number of channels */
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audio_set_output_source(audio_output_source);
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#endif
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}
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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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{
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#ifdef HAVE_RECORDING
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if (samplerate != HW_SAMPR_RESET && type == SAMPR_TYPE_REC)
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{
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/* Check if the samplerate is in the list of recordable rates.
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* Fail to default if not */
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int index = round_value_to_list32(samplerate, rec_freq_sampr,
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REC_NUM_FREQ, false);
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if (samplerate != rec_freq_sampr[index])
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samplerate = REC_SAMPR_DEFAULT;
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samplerate *= 2; /* Recording rates are 1/2 the codec clock */
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}
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#endif /* HAVE_RECORDING */
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return samplerate;
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(void)type;
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}
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#endif /* CONFIG_SAMPR_TYPES */
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