static int jz_pcm_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct device *dev = dai->dev;
struct jz_pcm *jz_pcm = dev_get_drvdata(dai->dev);
PCM_DEBUG_MSG("enter %s, substream = %s\n",
__func__,
(substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? "playback" : "capture");
if (!jz_pcm->pcm_mode) {
clk_enable(jz_pcm->clk_gate);
#if 1
__pcm_as_slaver(dev);
#else
clk_set_rate(jz_pcm->clk, 9600000);
clk_enable(jz_pcm->clk);
__pcm_as_master(dev);
__pcm_set_clkdiv(dev, 9600000/20/8000 - 1);
__pcm_set_syndiv(dev, 20 - 1);
#endif
__pcm_set_msb_one_shift_in(dev);
__pcm_set_msb_one_shift_out(dev);
__pcm_play_lastsample(dev);
__pcm_enable(dev);
__pcm_clock_enable(dev);
}
if (substream->stream ==
SNDRV_PCM_STREAM_PLAYBACK) {
__pcm_disable_transmit_dma(dev);
__pcm_disable_replay(dev);
__pcm_clear_tur(dev);
jz_pcm->pcm_mode |= PCM_WRITE;
} else {
__pcm_disable_receive_dma(dev);
__pcm_disable_record(dev);
__pcm_clear_ror(dev);
jz_pcm->pcm_mode |= PCM_READ;
}
printk("start set PCM register....\n");
return 0;
}
static int pcm_enable(int mode)
{
unsigned long rate = 8000;
unsigned long replay_format = 16;
unsigned long record_format = 16;
int replay_channel = 1;
int record_channel = 1;
struct dsp_pipe *dp_other = NULL;
if (!pcm_priv)
return -ENODEV;
if (pcm_priv->replay_format != 0)
replay_format = pcm_priv->replay_format;
if (pcm_priv->record_format != 0)
record_format = pcm_priv->record_format;
if (pcm_priv->rate != 0)
rate = pcm_priv->rate;
if (mode & CODEC_WMODE) {
dp_other = pcm_priv->endpoint->in_endpoint;
pcm_set_fmt(&replay_format,mode);
pcm_set_channel(&replay_channel,mode);
pcm_set_trigger(mode);
}
if (mode & CODEC_RMODE) {
dp_other = pcm_priv->endpoint->out_endpoint;
pcm_set_fmt(&record_format,mode);
pcm_set_channel(&record_channel,mode);
pcm_set_trigger(mode);
}
pcm_set_rate(&rate);
if (!dp_other->is_used) {
if (mode & CODEC_WMODE)
__pcm_flush_fifo();
__pcm_enable();
__pcm_clock_enable();
}
return 0;
}
