rockbox/firmware/target/arm/imx31/gigabeat-s/audio-gigabeat-s.c

72 lines
2.4 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 by Nils Wallménius
*
* 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 "config.h"
#include "system.h"
#include "audiohw.h"
#include "audio.h"
/* Set the audio source for IIS TX */
void audio_set_output_source(int source)
{
switch (source)
{
default:
case AUDIO_SRC_PLAYBACK:
/* Receive data from PORT2 (SSI2) */
AUDMUX_PDCR4 = AUDMUX_PDCR_RXDSEL_PORT2;
/* wmc_clear(WMC_COMPANDING_CTRL, WMC_LOOPBACK); */
break;
case AUDIO_SRC_FMRADIO:
/* External source - receive data from self (loopback to TX) */
AUDMUX_PDCR4 = AUDMUX_PDCR_RXDSEL_PORT4;
/* wmc_set(WMC_COMPANDING_CTRL, WMC_LOOPBACK); */
break;
}
}
void audio_input_mux(int source, unsigned int 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:
source = AUDIO_SRC_PLAYBACK;
/* Fallthrough */
case AUDIO_SRC_PLAYBACK: /* playback - no recording */
if (source != last_source)
audiohw_set_recsrc(AUDIO_SRC_PLAYBACK, false);
break;
case AUDIO_SRC_FMRADIO: /* recording and playback */
if (source != last_source || recording != last_recording)
audiohw_set_recsrc(AUDIO_SRC_FMRADIO, recording);
break;
}
last_source = source;
last_recording = recording;
}