void tegra_pcm_control(int enable, struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_codec *codec = rtd->codec;
struct snd_soc_dapm_context *dapm = &codec->dapm;
struct snd_soc_card *card = codec->card;
struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
static int open_status = 0;
static int aec_st = AEC_DISABLE;
int func = substream->stream;
mutex_lock(&machine->fm34_lock);
if(enable) {
open_status |= (0x01<<func);
if(open_status == 0x03 && AEC_DISABLE == aec_st && snd_soc_dapm_get_pin_status(dapm, "Int Mic")
&& machine->input_source != AUDIO_SOURCE_VOICE_RECOGNITION) {
//printk(KERN_INFO "##### input:%d voice:%d mode:%d\n",
// machine->input_source, machine->voice_call, machine->audio_mode);
if(machine->input_source == AUDIO_SOURCE_VOICE_COMMUNICATION
|| machine->voice_call
|| machine->audio_mode == MODE_IN_COMMUNICATION) {
if(set_fM34_echo()) {
aec_st = AEC_ENABLE;
tegra_wm8903_digital_voip_gain(codec, 0);
}
}
}
} else {
if(AEC_ENABLE == aec_st) {
set_fM34_bypass(0);
aec_st = AEC_DISABLE;
tegra_wm8903_digital_voip_gain(codec, 255);
}
open_status &= ~(0x01<<func);
}
mutex_unlock(&machine->fm34_lock);
}
void tegra_pcm_control(int enable, int func)
{
struct snd_soc_device *pdata = platform_get_drvdata(tegra_snd_device);
//struct tegra_audio_data* audio_data = pdata->card->codec->socdev->codec_data;
static int open_status = 0;
#ifdef CONFIG_SND_SOC_FM34
static int aec_st = AEC_N;
int val;
#endif
if(enable) {
open_status |= (0x01<<func);
if(func == SNDRV_PCM_STREAM_PLAYBACK) {
#ifdef CONFIG_SND_SOC_FM34
if(open_status & (0x01<<SNDRV_PCM_STREAM_CAPTURE)) {
if(AEC_N == aec_st && snd_soc_read(pdata->card->codec, WM8903_CLOCK_RATE_TEST_4)) {
if(set_fM34_echo()) {
aec_st = AEC_C;
if(0 == mic_mute_state) {
val = ((0xC0<<WM8903_ADCL_VOL_SHIFT) | WM8903_ADCVU);
snd_soc_write(pdata->card->codec, WM8903_ADC_DIGITAL_VOLUME_LEFT, val);
//snd_soc_write(pdata->card->codec, WM8903_ADC_DIGITAL_VOLUME_RIGHT, val);
}
}
}
}
#endif
} else if(func == SNDRV_PCM_STREAM_CAPTURE) {
val = ((0xEF<<WM8903_ADCL_VOL_SHIFT) | WM8903_ADCVU);
#ifdef CONFIG_SND_SOC_FM34
if(snd_soc_read(pdata->card->codec, WM8903_CLOCK_RATE_TEST_4)) {
if(open_status & (0x01<<SNDRV_PCM_STREAM_PLAYBACK) && AEC_N == aec_st) {
if(set_fM34_echo()) {
aec_st = AEC_C;
val = ((0xC0<<WM8903_ADCL_VOL_SHIFT) | WM8903_ADCVU);
}
}
}
#endif
if(0 == mic_mute_state) {
snd_soc_write(pdata->card->codec, WM8903_ADC_DIGITAL_VOLUME_LEFT, val);
//snd_soc_write(pdata->card->codec, WM8903_ADC_DIGITAL_VOLUME_RIGHT, val);
}
}
} else {
#ifdef CONFIG_SND_SOC_FM34
if(AEC_C == aec_st) {
set_fM34_bypass();
aec_st = AEC_N;
}
#endif
if(func == SNDRV_PCM_STREAM_CAPTURE) {
val = ((0x00<<WM8903_ADCL_VOL_SHIFT) | WM8903_ADCVU);
} else {
val = ((0xEF<<WM8903_ADCL_VOL_SHIFT) | WM8903_ADCVU);
}
if(0 == mic_mute_state) {
snd_soc_write(pdata->card->codec, WM8903_ADC_DIGITAL_VOLUME_LEFT, val);
//snd_soc_write(pdata->card->codec, WM8903_ADC_DIGITAL_VOLUME_RIGHT, val);
}
open_status &= ~(0x01<<func);
}
}