diff options
Diffstat (limited to 'sound/soc/codecs/ad193x.c')
| -rw-r--r-- | sound/soc/codecs/ad193x.c | 76 |
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); |