static int cq93vc_probe(struct snd_soc_codec *codec)
{
struct davinci_vc *davinci_vc = codec->dev->platform_data;
davinci_vc->cq93vc.codec = codec;
codec->control_data = davinci_vc;
/* Set controls */
snd_soc_add_codec_controls(codec, cq93vc_snd_controls,
ARRAY_SIZE(cq93vc_snd_controls));
/* Off, with power on */
cq93vc_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
/* Turn on Automatic Level Control (VC_REG06) */
cq93vc_write(codec, DAVINCI_VC_REG06, 1);
/* Turn on microphone Gain (VC_REG05) */
cq93vc_write(codec, DAVINCI_VC_REG05, 0x1f);
/* Recording Mode Control (VC_REG04) */
cq93vc_write(codec, DAVINCI_VC_REG04, 0x0);
return 0;
}
static int cq93vc_mute(struct snd_soc_dai *dai, int mute)
{
struct snd_soc_codec *codec = dai->codec;
u8 reg = cq93vc_read(codec, DAVINCI_VC_REG09) & ~DAVINCI_VC_REG09_MUTE;
if (mute)
cq93vc_write(codec, DAVINCI_VC_REG09,
reg | DAVINCI_VC_REG09_MUTE);
else
cq93vc_write(codec, DAVINCI_VC_REG09, reg);
return 0;
}
static int cq93vc_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
switch (level) {
case SND_SOC_BIAS_ON:
cq93vc_write(codec, DAVINCI_VC_REG12,
DAVINCI_VC_REG12_POWER_ALL_ON);
break;
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
cq93vc_write(codec, DAVINCI_VC_REG12,
DAVINCI_VC_REG12_POWER_ALL_OFF);
break;
case SND_SOC_BIAS_OFF:
/* force all power off */
cq93vc_write(codec, DAVINCI_VC_REG12,
DAVINCI_VC_REG12_POWER_ALL_OFF);
break;
}
codec->bias_level = level;
return 0;
}