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path: root/sound/soc/codecs/ad193x.c
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Diffstat (limited to 'sound/soc/codecs/ad193x.c')
-rw-r--r--sound/soc/codecs/ad193x.c76
1 files changed, 72 insertions, 4 deletions
diff --git a/sound/soc/codecs/ad193x.c b/sound/soc/codecs/ad193x.c
index 4b60ebee491d..96d7cb2e4a56 100644
--- a/sound/soc/codecs/ad193x.c
+++ b/sound/soc/codecs/ad193x.c
@@ -37,6 +37,13 @@ static SOC_ENUM_SINGLE_DECL(ad193x_deemp_enum, AD193X_DAC_CTRL2, 1,
static const DECLARE_TLV_DB_MINMAX(adau193x_tlv, -9563, 0);
+static const unsigned int ad193x_sb[] = {32};
+
+static struct snd_pcm_hw_constraint_list constr = {
+ .list = ad193x_sb,
+ .count = ARRAY_SIZE(ad193x_sb),
+};
+
static const struct snd_kcontrol_new ad193x_snd_controls[] = {
/* DAC volume control */
SOC_DOUBLE_R_TLV("DAC1 Volume", AD193X_DAC_L1_VOL,
@@ -93,6 +100,15 @@ static const struct snd_soc_dapm_widget ad193x_adc_widgets[] = {
SND_SOC_DAPM_INPUT("ADC2IN"),
};
+static int ad193x_check_pll(struct snd_soc_dapm_widget *source,
+ struct snd_soc_dapm_widget *sink)
+{
+ struct snd_soc_component *component = snd_soc_dapm_to_component(source->dapm);
+ struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);
+
+ return !!ad193x->sysclk;
+}
+
static const struct snd_soc_dapm_route audio_paths[] = {
{ "DAC", NULL, "SYSCLK" },
{ "DAC Output", NULL, "DAC" },
@@ -101,7 +117,7 @@ static const struct snd_soc_dapm_route audio_paths[] = {
{ "DAC2OUT", NULL, "DAC Output" },
{ "DAC3OUT", NULL, "DAC Output" },
{ "DAC4OUT", NULL, "DAC Output" },
- { "SYSCLK", NULL, "PLL_PWR" },
+ { "SYSCLK", NULL, "PLL_PWR", &ad193x_check_pll },
};
static const struct snd_soc_dapm_route ad193x_adc_audio_paths[] = {
@@ -181,23 +197,26 @@ static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
{
struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(codec_dai->component);
unsigned int adc_serfmt = 0;
+ unsigned int dac_serfmt = 0;
unsigned int adc_fmt = 0;
unsigned int dac_fmt = 0;
/* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S
- * with TDM) and ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A)
+ * with TDM), ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A) and DAC I2S mode
+ * (SND_SOC_DAIFMT_I2S)
*/
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
adc_serfmt |= AD193X_ADC_SERFMT_TDM;
+ dac_serfmt |= AD193X_DAC_SERFMT_STEREO;
break;
case SND_SOC_DAIFMT_DSP_A:
adc_serfmt |= AD193X_ADC_SERFMT_AUX;
+ dac_serfmt |= AD193X_DAC_SERFMT_TDM;
break;
default:
if (ad193x_has_adc(ad193x))
return -EINVAL;
- break;
}
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
@@ -221,6 +240,12 @@ static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
return -EINVAL;
}
+ /* For DSP_*, LRCLK's polarity must be inverted */
+ if (fmt & SND_SOC_DAIFMT_DSP_A) {
+ change_bit(ffs(AD193X_DAC_LEFT_HIGH) - 1,
+ (unsigned long *)&dac_fmt);
+ }
+
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM: /* codec clk & frm master */
adc_fmt |= AD193X_ADC_LCR_MASTER;
@@ -248,6 +273,8 @@ static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2,
AD193X_ADC_FMT_MASK, adc_fmt);
}
+ regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL0,
+ AD193X_DAC_SERFMT_MASK, dac_serfmt);
regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1,
AD193X_DAC_FMT_MASK, dac_fmt);
@@ -258,7 +285,22 @@ static int ad193x_set_dai_sysclk(struct snd_soc_dai *codec_dai,
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_component *component = codec_dai->component;
+ struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);
+
+ if (clk_id == AD193X_SYSCLK_MCLK) {
+ /* MCLK must be 512 x fs */
+ if (dir == SND_SOC_CLOCK_OUT || freq != 24576000)
+ return -EINVAL;
+
+ regmap_update_bits(ad193x->regmap, AD193X_PLL_CLK_CTRL1,
+ AD193X_PLL_SRC_MASK,
+ AD193X_PLL_DAC_SRC_MCLK |
+ AD193X_PLL_CLK_SRC_MCLK);
+
+ snd_soc_dapm_sync(dapm);
+ return 0;
+ }
switch (freq) {
case 12288000:
case 18432000:
@@ -321,7 +363,16 @@ static int ad193x_hw_params(struct snd_pcm_substream *substream,
return 0;
}
+static int ad193x_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ return snd_pcm_hw_constraint_list(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
+ &constr);
+}
+
static const struct snd_soc_dai_ops ad193x_dai_ops = {
+ .startup = ad193x_startup,
.hw_params = ad193x_hw_params,
.digital_mute = ad193x_mute,
.set_tdm_slot = ad193x_set_tdm_slot,
@@ -351,6 +402,20 @@ static struct snd_soc_dai_driver ad193x_dai = {
.ops = &ad193x_dai_ops,
};
+/* codec DAI instance for DAC only */
+static struct snd_soc_dai_driver ad193x_no_adc_dai = {
+ .name = "ad193x-hifi",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 2,
+ .channels_max = 8,
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
+ },
+ .ops = &ad193x_dai_ops,
+};
+
static int ad193x_component_probe(struct snd_soc_component *component)
{
struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);
@@ -444,8 +509,11 @@ int ad193x_probe(struct device *dev, struct regmap *regmap,
dev_set_drvdata(dev, ad193x);
+ if (ad193x_has_adc(ad193x))
+ return devm_snd_soc_register_component(dev, &soc_component_dev_ad193x,
+ &ad193x_dai, 1);
return devm_snd_soc_register_component(dev, &soc_component_dev_ad193x,
- &ad193x_dai, 1);
+ &ad193x_no_adc_dai, 1);
}
EXPORT_SYMBOL_GPL(ad193x_probe);