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_set_recsrc(source,false);
coldfire_set_dataincontrol(0);
}
break;
case AUDIO_SRC_MIC:
case AUDIO_SRC_LINEIN:
/* recording only */
if (source != last_source)
{
audiohw_set_recsrc(source,true);
/* Int. when 6 samples in FIFO, PDIR2 src = iis1RcvData */
coldfire_set_dataincontrol((3 << 14) | (4 << 3));
}
break;
case AUDIO_SRC_FMRADIO:
if (source == last_source && recording == last_recording)
break;
last_recording = recording;
audiohw_set_recsrc(source,recording);
/* Int. when 6 samples in FIFO, PDIR2 src = iis1RcvData */
coldfire_set_dataincontrol(recording ?
((3 << 14) | (4 << 3)) : 0);
break;
}
last_source = source;
}
void audio_input_mux(int source, unsigned flags)
{
/* Prevent pops from unneeded switching */
static int last_source = AUDIO_SRC_PLAYBACK;
#ifdef HAVE_FMRADIO_IN
static bool last_recording = false;
bool recording = flags & SRCF_RECORDING;
#else
(void)flags;
#endif
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 */
/* 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 */
/* Int. when 6 samples in FIFO, PDIR2 src = iis1RcvData */
coldfire_set_dataincontrol((3 << 14) | (4 << 3));
}
break;
#ifdef HAVE_FMRADIO_IN
case AUDIO_SRC_FMRADIO: /* recording and playback */
if (!recording)
audiohw_set_recvol(23, 23, AUDIO_GAIN_LINEIN);
/* I2S recording and analog playback */
if (source == last_source && recording == last_recording)
break;
last_recording = recording;
if (recording)
{
/* Int. when 6 samples in FIFO, PDIR2 src = iis1RcvData */
coldfire_set_dataincontrol((3 << 14) | (4 << 3));
audiohw_enable_recording(false); /* source line */
}
else
{
audiohw_disable_recording();
audiohw_set_monitor(true); /* analog bypass */
coldfire_set_dataincontrol(0);
}
break;
#endif /* HAVE_FMRADIO_IN */
} /* end switch */
/* set line multiplexer */
#ifdef IAUDIO_M3
#ifdef HAVE_FMRADIO_IN
if (source == AUDIO_SRC_FMRADIO)
and_l(~(1 << 25), &GPIO1_OUT); /* FM radio */
else
#endif
or_l((1 << 25), &GPIO1_OUT); /* Line In */
or_l((1 << 25), &GPIO1_ENABLE);
or_l((1 << 25), &GPIO1_FUNCTION);
#else /* iAudio M5, X5 */
#ifdef HAVE_FMRADIO_IN
if (source == AUDIO_SRC_FMRADIO)
and_l(~(1 << 29), &GPIO_OUT); /* FM radio */
else
#endif
or_l((1 << 29), &GPIO_OUT); /* Line In */
or_l((1 << 29), &GPIO_ENABLE);
or_l((1 << 29), &GPIO_FUNCTION);
#endif /* iAudio M5, X5 */
last_source = source;
} /* audio_input_mux */
