void pcm_play_dma_init(void)
{
freq_ent = pcm_freq_parms[pcm_fsel];
AUDIOGLOB = AUDIOGLOB_DEFPARM;
DIVR0 = 54; /* DMA0 is mapped into vector 54 in system.c */
and_l(0xffffff00, &DMAROUTE);
or_l(DMA0_REQ_AUDIO_1, &DMAROUTE);
DMACONFIG = 1; /* DMA0Req = PDOR3, DMA1Req = PDIR2 */
BCR0 = 0; /* No bytes waiting */
ICR6 = (6 << 2); /* Enable interrupt at level 6, priority 0 */
/* Setup Coldfire I2S before initializing hardware or changing
other settings. */
or_l(IIS_FIFO_RESET, &IIS_PLAY);
IIS_PLAY = IIS_PLAY_DEFPARM | IIS_FIFO_RESET;
audio_set_output_source(AUDIO_SRC_PLAYBACK);
/* Initialize default register values. */
audiohw_init();
audio_input_mux(AUDIO_SRC_PLAYBACK, SRCF_PLAYBACK);
audiohw_set_frequency(pcm_fsel);
coldfire_set_pllcr_audio_bits(PLLCR_SET_AUDIO_BITS_DEFPARM);
#if defined(HAVE_SPDIF_REC) || defined(HAVE_SPDIF_OUT)
spdif_init();
#endif
} /* pcm_play_dma_init */
/**
* Selects an audio source for recording or playback
* powers/unpowers related devices and sets up monitoring.
*/
void audio_set_input_source(int source, unsigned flags)
{
/** Do power up/down of associated device(s) **/
/** SPDIF **/
#ifdef AUDIO_CPU_BOOST
/* Always boost for SPDIF */
audio_cpu_boost(source == AUDIO_SRC_SPDIF);
#endif /* AUDIO_CPU_BOOST */
#ifdef HAVE_SPDIF_POWER
/* Check if S/PDIF output power should be switched off or on. NOTE: assumes
both optical in and out is controlled by the same power source, which is
the case on H1x0. */
spdif_power_enable((source == AUDIO_SRC_SPDIF) ||
global_settings.spdif_enable);
#endif /* HAVE_SPDIF_POWER */
/* Set the appropriate feed for spdif output */
#ifdef HAVE_SPDIF_OUT
spdif_set_output_source(source
IF_SPDIF_POWER_(, global_settings.spdif_enable));
#endif /* HAVE_SPDIF_OUT */
/** Tuner **/
#if CONFIG_TUNER
/* Switch radio off or on per source and flags. */
if (source != AUDIO_SRC_FMRADIO)
radio_stop();
else if (flags & SRCF_FMRADIO_PAUSED)
radio_pause();
else
radio_start();
#endif
#if defined(IPOD_ACCESSORY_PROTOCOL) && defined(HAVE_LINE_REC)
static bool last_rec_onoff = false;
bool onoff = (source == AUDIO_SRC_LINEIN) ? true : false;
if (last_rec_onoff != onoff)
last_rec_onoff = iap_record(onoff);
#endif
/* set hardware inputs */
audio_input_mux(source, flags);
} /* audio_set_source */
