static int mtk_capture_pcm_open(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
int ret = 0;
AudDrv_Clk_On();
AudDrv_ADC_Clk_On();
VUL_Control_context = Get_Mem_ControlT(Soc_Aud_Digital_Block_MEM_VUL);
// can allocate sram_dbg
AfeControlSramLock();
if (GetSramState() == SRAM_STATE_FREE )
{
printk("mtk_capture_pcm_open use sram \n");
mtk_capture_hardware.buffer_bytes_max = GetCaptureSramSize();
SetSramState(SRAM_STATE_CAPTURE);
mCaptureUseSram = true;
}
else
{
printk("mtk_capture_pcm_open use dram \n");
mtk_capture_hardware.buffer_bytes_max = UL1_MAX_BUFFER_SIZE;
}
AfeControlSramUnLock();
runtime->hw = mtk_capture_hardware;
memcpy((void *)(&(runtime->hw)), (void *)&mtk_capture_hardware , sizeof(struct snd_pcm_hardware));
ret = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
&constraints_sample_rates);
ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
if (ret < 0)
{
printk("snd_pcm_hw_constraint_integer failed\n");
}
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
{
}
else
{
}
if (ret < 0)
{
printk("mtk_capture_pcm_close\n");
mtk_capture_pcm_close(substream);
return ret;
}
if(mCaptureUseSram == false)
{
AudDrv_Emi_Clk_On();
}
printk("mtk_capture_pcm_open return\n");
return 0;
}
static int mtk_voice_extint_pcm_open(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
int err = 0;
int ret = 0;
AudDrv_Clk_On();
AudDrv_ADC_Clk_On();
printk("mtk_voice_extint_pcm_open\n");
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
{
printk("%s with SNDRV_PCM_STREAM_CAPTURE \n",__func__);
runtime->rate = 16000;
if(Voice_ExtInt_Status != 0)
{
return 0;
}
}
runtime->hw = mtk_pcm_hardware;
memcpy((void *)(&(runtime->hw)), (void *)&mtk_pcm_hardware , sizeof(struct snd_pcm_hardware));
ret = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
&constraints_sample_rates);
ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
if (ret < 0)
{
printk("snd_pcm_hw_constraint_integer failed\n");
}
//print for hw pcm information
printk("mtk_voice_extint_pcm_open runtime rate = %d channels = %d \n", runtime->rate, runtime->channels);
runtime->hw.info |= SNDRV_PCM_INFO_INTERLEAVED;
runtime->hw.info |= SNDRV_PCM_INFO_NONINTERLEAVED;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
{
printk("SNDRV_PCM_STREAM_PLAYBACK mtkalsa_voice_extint_constraints\n");
runtime->rate = 16000;
}
else
{
}
if (err < 0)
{
printk("mtk_voice_extint_close\n");
mtk_voice_extint_close(substream);
return err;
}
printk("mtk_voice_extint_pcm_open return\n");
return 0;
}
