static int mtk_fm_i2s_awb_pcm_open(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
int ret = 0;
printk("mtk_fm_i2s_awb_pcm_open\n");
FM_I2S_AWB_Control_context = Get_Mem_ControlT(Soc_Aud_Digital_Block_MEM_AWB);
runtime->hw = mtk_mgrrx_awb_hardware;
memcpy((void *)(&(runtime->hw)), (void *)&mtk_mgrrx_awb_hardware , sizeof(struct snd_pcm_hardware));
ret = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
&fm_i2s_awb_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");
}
printk("mtk_fm_i2s_awb_pcm_open runtime rate = %d channels = %d \n", runtime->rate, runtime->channels);
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
{
printk("SNDRV_PCM_STREAM_CAPTURE \n");
}
else
{
return -1;
}
// here open audio clocks
AudDrv_Clk_On();
AudDrv_I2S_Clk_On();
AudDrv_Emi_Clk_On();
if (ret < 0)
{
printk("mtk_fm_i2s_awb_pcm_close\n");
mtk_fm_i2s_awb_pcm_close(substream);
return ret;
}
printk("mtk_fm_i2s_awb_pcm_open return\n");
return 0;
}
static int mtk_pcm_fm_i2s_open(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
int ret = 0;
AudDrv_Clk_On();
AudDrv_I2S_Clk_On();
printk("mtk_pcm_fm_i2s_open\n");
runtime->hw = mtk_fm_i2s_hardware;
memcpy((void *)(&(runtime->hw)), (void *)&mtk_fm_i2s_hardware , sizeof(struct snd_pcm_hardware));
ret = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
&fm_i2s_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");
}
printk("mtk_pcm_fm_i2s_open runtime rate = %d channels = %d substream->pcm->device = %d\n",
runtime->rate, runtime->channels, substream->pcm->device);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
{
printk("SNDRV_PCM_STREAM_PLAYBACK mtkalsa_fm_i2s_playback_constraints\n");
}
else
{
}
if (ret < 0)
{
printk("mtk_pcm_fm_i2s_close\n");
mtk_pcm_fm_i2s_close(substream);
return ret;
}
SetFMEnableFlag(true);
printk("mtk_pcm_fm_i2s_open return\n");
return 0;
}
