/*
the I2S hw and IEC958 PCM output initation,958 initation here,
for the case that only use our ALSA driver for PCM s/pdif output.
*/
static void aml_hw_i2s_init(struct snd_pcm_runtime *runtime)
{
switch(runtime->format){
case SNDRV_PCM_FORMAT_S32_LE:
I2S_MODE = AIU_I2S_MODE_PCM32;
// IEC958_MODE = AIU_958_MODE_PCM32;
break;
case SNDRV_PCM_FORMAT_S24_LE:
I2S_MODE = AIU_I2S_MODE_PCM24;
// IEC958_MODE = AIU_958_MODE_PCM24;
break;
case SNDRV_PCM_FORMAT_S16_LE:
I2S_MODE = AIU_I2S_MODE_PCM16;
// IEC958_MODE = AIU_958_MODE_PCM16;
break;
}
audio_set_i2s_mode(I2S_MODE);
audio_set_aiubuf(runtime->dma_addr, runtime->dma_bytes, runtime->channels);
memset((void*)runtime->dma_area,0,runtime->dma_bytes + 4096);
/* update the i2s hw buffer end addr as android may update that */
aml_pcm_playback_phy_end_addr = aml_pcm_playback_phy_start_addr+runtime->dma_bytes;
printk("I2S hw init,i2s mode %d\n",I2S_MODE);
}
static void aml_i2s_play(void)
{
audio_util_set_dac_i2s_format(AUDIO_ALGOUT_DAC_FORMAT_DSP);
audio_set_i2s_mode(AIU_I2S_MODE_PCM16);
memset(i2sbuf, 0, sizeof(i2sbuf));
audio_set_aiubuf((virt_to_phys(i2sbuf) + 63) & (~63), 128, 2);
audio_out_i2s_enable(1);
}
/*
the I2S hw and IEC958 PCM output initation,958 initation here,
for the case that only use our ALSA driver for PCM s/pdif output.
*/
static void aml_hw_i2s_init(struct snd_pcm_runtime *runtime)
{
unsigned i2s_mode = AIU_I2S_MODE_PCM16;
switch (runtime->format) {
case SNDRV_PCM_FORMAT_S32_LE:
i2s_mode = AIU_I2S_MODE_PCM32;
break;
case SNDRV_PCM_FORMAT_S24_LE:
i2s_mode = AIU_I2S_MODE_PCM24;
break;
case SNDRV_PCM_FORMAT_S16_LE:
i2s_mode = AIU_I2S_MODE_PCM16;
break;
}
audio_set_i2s_mode(i2s_mode);
audio_set_aiubuf(runtime->dma_addr, runtime->dma_bytes,
runtime->channels);
ALSA_PRINT("i2s dma %x,phy addr %x,mode %d,ch %d \n",
(unsigned)runtime->dma_area, (unsigned)runtime->dma_addr,
i2s_mode, runtime->channels);
