2acc0ac542
later. We still need to hunt down snippets used that are not. 1324 modified files... http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657
115 lines
3.8 KiB
C
115 lines
3.8 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) 2006 by Michael Sevakis
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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 "system.h"
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#include "cpu.h"
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#include "audio.h"
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#include "sound.h"
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void audio_set_output_source(int source)
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{
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int level = set_irq_level(DMA_IRQ_LEVEL);
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unsigned long txsrc;
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if ((unsigned)source >= AUDIO_NUM_SOURCES)
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txsrc = (3 << 8); /* playback, PDOR3 */
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else
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txsrc = (4 << 8); /* recording, iis1RcvData */
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IIS1CONFIG = (IIS1CONFIG & ~(7 << 8)) | txsrc;
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restore_irq(level);
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} /* audio_set_output_source */
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void audio_input_mux(int source, unsigned flags)
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{
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/* Prevent pops from unneeded switching */
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static int last_source = AUDIO_SRC_PLAYBACK;
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static bool last_recording = false;
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bool recording = flags & SRCF_RECORDING;
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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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case AUDIO_SRC_PLAYBACK:
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if (source != last_source)
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{
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audiohw_disable_recording();
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audiohw_set_monitor(false);
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coldfire_set_dataincontrol(0);
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}
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break;
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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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audiohw_enable_recording(true); /* source mic */
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/* Int. when 6 samples in FIFO, PDIR2 src = iis1RcvData */
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coldfire_set_dataincontrol((3 << 14) | (4 << 3));
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}
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break;
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case AUDIO_SRC_LINEIN: /* recording only */
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if (source != last_source)
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{
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audiohw_enable_recording(false); /* source line */
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/* Int. when 6 samples in FIFO, PDIR2 src = iis1RcvData */
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coldfire_set_dataincontrol((3 << 14) | (4 << 3));
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}
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break;
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case AUDIO_SRC_FMRADIO: /* recording and playback */
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if (!recording)
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audiohw_set_recvol(23, 23, AUDIO_GAIN_LINEIN);
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/* I2S recording and analog playback */
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if (source == last_source && recording == last_recording)
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break;
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last_recording = recording;
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if (recording)
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{
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/* Int. when 6 samples in FIFO, PDIR2 src = iis1RcvData */
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coldfire_set_dataincontrol((3 << 14) | (4 << 3));
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audiohw_enable_recording(false); /* source line */
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}
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else
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{
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audiohw_disable_recording();
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audiohw_set_monitor(true); /* analog bypass */
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coldfire_set_dataincontrol(0);
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}
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break;
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} /* end switch */
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/* set line multiplexer */
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if (source == AUDIO_SRC_FMRADIO)
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and_l(~(1 << 29), &GPIO_OUT); /* FM radio */
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else
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or_l((1 << 29), &GPIO_OUT); /* Line In */
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or_l((1 << 29), &GPIO_ENABLE);
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or_l((1 << 29), &GPIO_FUNCTION);
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last_source = source;
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} /* audio_input_mux */
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