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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 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.
*
****************************************************************************/
#include "system.h"
#include "cpu.h"
#include "audio.h"
#include "sound.h"
void audio_set_output_source(int source)
{
static const unsigned char txsrc_select[AUDIO_NUM_SOURCES+1] =
{
[AUDIO_SRC_PLAYBACK+1] = 3, /* PDOR3 */
[AUDIO_SRC_MIC+1] = 4, /* IIS1 RcvData */
[AUDIO_SRC_LINEIN+1] = 4, /* IIS1 RcvData */
[AUDIO_SRC_FMRADIO+1] = 4, /* IIS1 RcvData */
#ifdef HAVE_SPDIF_IN
[AUDIO_SRC_SPDIF+1] = 7, /* EBU1 RcvData */
#endif
};
int level = set_irq_level(DMA_IRQ_LEVEL);
if ((unsigned)source >= AUDIO_NUM_SOURCES)
source = AUDIO_SRC_PLAYBACK;
IIS2CONFIG = (IIS2CONFIG & ~(7 << 8)) | (txsrc_select[source+1] << 8);
restore_irq(level);
} /* audio_set_output_source */
void audio_input_mux(int source, unsigned flags)
{
/* Prevent pops from unneeded switching */
static int last_source = AUDIO_SRC_PLAYBACK;
bool recording = flags & SRCF_RECORDING;
static bool last_recording = false;
switch (source)
{
default: /* playback - no recording */
source = AUDIO_SRC_PLAYBACK;
case AUDIO_SRC_PLAYBACK:
if (source != last_source)
{
audiohw_disable_recording();
audiohw_set_monitor(false);
coldfire_set_dataincontrol(0);
}
break;
case AUDIO_SRC_MIC: /* recording only */
if (source != last_source)
{
audiohw_enable_recording(true); /* source mic */
audiohw_set_monitor(false);
/* Int. when 6 samples in FIFO, PDIR2 src = iis1RcvData */
coldfire_set_dataincontrol((3 << 14) | (4 << 3));
}
break;
case AUDIO_SRC_LINEIN: /* recording only */
if (source != last_source)
{
audiohw_enable_recording(false); /* source line */
audiohw_set_monitor(false);
/* Int. when 6 samples in FIFO, PDIR2 src = iis1RcvData */
coldfire_set_dataincontrol((3 << 14) | (4 << 3));
}
break;
#ifdef HAVE_SPDIF_IN
case AUDIO_SRC_SPDIF: /* recording only */
if (source != last_source)
{
audiohw_disable_recording();
audiohw_set_monitor(false);
/* Int. when 6 samples in FIFO, PDIR2 src = ebu1RcvData */
coldfire_set_dataincontrol((3 << 14) | (7 << 3));
}
break;
#endif /* HAVE_SPDIF_IN */
case AUDIO_SRC_FMRADIO: /* recording and playback */
if (!recording)
audiohw_set_recvol(0, 0, AUDIO_GAIN_LINEIN);
if (source == last_source && recording == last_recording)
break;
last_recording = recording;
/* Int. when 6 samples in FIFO, PDIR2 src = iis1RcvData */
coldfire_set_dataincontrol(recording ?
((3 << 14) | (4 << 3)) : 0);
/* I2S recording and playback */
audiohw_enable_recording(false); /* source line */
audiohw_set_monitor(!recording);
break;
} /* end switch */
/* set line multiplexer */
#if defined(IRIVER_H100_SERIES)
#define MUX_BIT (1 << 23)
#elif defined(IRIVER_H300_SERIES)
#define MUX_BIT (1 << 30)
#endif
if (source == AUDIO_SRC_FMRADIO)
or_l(MUX_BIT, &GPIO_OUT); /* FM radio */
else
and_l(~MUX_BIT, &GPIO_OUT); /* Line In */
or_l(MUX_BIT, &GPIO_ENABLE);
or_l(MUX_BIT, &GPIO_FUNCTION);
last_source = source;
} /* audio_input_mux */
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