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535 lines
14 KiB
535 lines
14 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* AD193X Audio Codec driver supporting AD1936/7/8/9 |
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* |
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* Copyright 2010 Analog Devices Inc. |
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*/ |
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|
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#include <linux/module.h> |
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#include <linux/kernel.h> |
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#include <linux/device.h> |
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#include <linux/regmap.h> |
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#include <linux/slab.h> |
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#include <sound/core.h> |
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#include <sound/pcm.h> |
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#include <sound/pcm_params.h> |
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#include <sound/initval.h> |
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#include <sound/soc.h> |
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#include <sound/tlv.h> |
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#include "ad193x.h" |
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/* codec private data */ |
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struct ad193x_priv { |
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struct regmap *regmap; |
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enum ad193x_type type; |
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int sysclk; |
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}; |
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|
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/* |
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* AD193X volume/mute/de-emphasis etc. controls |
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*/ |
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static const char * const ad193x_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"}; |
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static SOC_ENUM_SINGLE_DECL(ad193x_deemp_enum, AD193X_DAC_CTRL2, 1, |
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ad193x_deemp); |
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static const DECLARE_TLV_DB_MINMAX(adau193x_tlv, -9563, 0); |
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static const unsigned int ad193x_sb[] = {32}; |
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static struct snd_pcm_hw_constraint_list constr = { |
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.list = ad193x_sb, |
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.count = ARRAY_SIZE(ad193x_sb), |
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}; |
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static const struct snd_kcontrol_new ad193x_snd_controls[] = { |
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/* DAC volume control */ |
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SOC_DOUBLE_R_TLV("DAC1 Volume", AD193X_DAC_L1_VOL, |
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AD193X_DAC_R1_VOL, 0, 0xFF, 1, adau193x_tlv), |
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SOC_DOUBLE_R_TLV("DAC2 Volume", AD193X_DAC_L2_VOL, |
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AD193X_DAC_R2_VOL, 0, 0xFF, 1, adau193x_tlv), |
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SOC_DOUBLE_R_TLV("DAC3 Volume", AD193X_DAC_L3_VOL, |
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AD193X_DAC_R3_VOL, 0, 0xFF, 1, adau193x_tlv), |
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SOC_DOUBLE_R_TLV("DAC4 Volume", AD193X_DAC_L4_VOL, |
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AD193X_DAC_R4_VOL, 0, 0xFF, 1, adau193x_tlv), |
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/* DAC switch control */ |
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SOC_DOUBLE("DAC1 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL1_MUTE, |
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AD193X_DACR1_MUTE, 1, 1), |
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SOC_DOUBLE("DAC2 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL2_MUTE, |
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AD193X_DACR2_MUTE, 1, 1), |
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SOC_DOUBLE("DAC3 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL3_MUTE, |
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AD193X_DACR3_MUTE, 1, 1), |
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SOC_DOUBLE("DAC4 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL4_MUTE, |
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AD193X_DACR4_MUTE, 1, 1), |
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/* DAC de-emphasis */ |
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SOC_ENUM("Playback Deemphasis", ad193x_deemp_enum), |
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}; |
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static const struct snd_kcontrol_new ad193x_adc_snd_controls[] = { |
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/* ADC switch control */ |
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SOC_DOUBLE("ADC1 Switch", AD193X_ADC_CTRL0, AD193X_ADCL1_MUTE, |
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AD193X_ADCR1_MUTE, 1, 1), |
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SOC_DOUBLE("ADC2 Switch", AD193X_ADC_CTRL0, AD193X_ADCL2_MUTE, |
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AD193X_ADCR2_MUTE, 1, 1), |
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|
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/* ADC high-pass filter */ |
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SOC_SINGLE("ADC High Pass Filter Switch", AD193X_ADC_CTRL0, |
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AD193X_ADC_HIGHPASS_FILTER, 1, 0), |
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}; |
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static const struct snd_soc_dapm_widget ad193x_dapm_widgets[] = { |
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SND_SOC_DAPM_DAC("DAC", "Playback", SND_SOC_NOPM, 0, 0), |
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SND_SOC_DAPM_PGA("DAC Output", AD193X_DAC_CTRL0, 0, 1, NULL, 0), |
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SND_SOC_DAPM_SUPPLY("PLL_PWR", AD193X_PLL_CLK_CTRL0, 0, 1, NULL, 0), |
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SND_SOC_DAPM_SUPPLY("SYSCLK", AD193X_PLL_CLK_CTRL0, 7, 0, NULL, 0), |
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SND_SOC_DAPM_VMID("VMID"), |
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SND_SOC_DAPM_OUTPUT("DAC1OUT"), |
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SND_SOC_DAPM_OUTPUT("DAC2OUT"), |
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SND_SOC_DAPM_OUTPUT("DAC3OUT"), |
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SND_SOC_DAPM_OUTPUT("DAC4OUT"), |
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}; |
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static const struct snd_soc_dapm_widget ad193x_adc_widgets[] = { |
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SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0), |
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SND_SOC_DAPM_SUPPLY("ADC_PWR", AD193X_ADC_CTRL0, 0, 1, NULL, 0), |
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SND_SOC_DAPM_INPUT("ADC1IN"), |
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SND_SOC_DAPM_INPUT("ADC2IN"), |
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}; |
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static int ad193x_check_pll(struct snd_soc_dapm_widget *source, |
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struct snd_soc_dapm_widget *sink) |
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{ |
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struct snd_soc_component *component = snd_soc_dapm_to_component(source->dapm); |
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struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component); |
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return !!ad193x->sysclk; |
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} |
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static const struct snd_soc_dapm_route audio_paths[] = { |
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{ "DAC", NULL, "SYSCLK" }, |
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{ "DAC Output", NULL, "DAC" }, |
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{ "DAC Output", NULL, "VMID" }, |
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{ "DAC1OUT", NULL, "DAC Output" }, |
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{ "DAC2OUT", NULL, "DAC Output" }, |
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{ "DAC3OUT", NULL, "DAC Output" }, |
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{ "DAC4OUT", NULL, "DAC Output" }, |
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{ "SYSCLK", NULL, "PLL_PWR", &ad193x_check_pll }, |
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}; |
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static const struct snd_soc_dapm_route ad193x_adc_audio_paths[] = { |
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{ "ADC", NULL, "SYSCLK" }, |
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{ "ADC", NULL, "ADC_PWR" }, |
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{ "ADC", NULL, "ADC1IN" }, |
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{ "ADC", NULL, "ADC2IN" }, |
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}; |
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static inline bool ad193x_has_adc(const struct ad193x_priv *ad193x) |
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{ |
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switch (ad193x->type) { |
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case AD1933: |
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case AD1934: |
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return false; |
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default: |
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break; |
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} |
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return true; |
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} |
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/* |
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* DAI ops entries |
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*/ |
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static int ad193x_mute(struct snd_soc_dai *dai, int mute, int direction) |
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{ |
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struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(dai->component); |
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if (mute) |
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regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2, |
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AD193X_DAC_MASTER_MUTE, |
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AD193X_DAC_MASTER_MUTE); |
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else |
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regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2, |
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AD193X_DAC_MASTER_MUTE, 0); |
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return 0; |
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} |
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static int ad193x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, |
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unsigned int rx_mask, int slots, int width) |
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{ |
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struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(dai->component); |
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unsigned int channels; |
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switch (slots) { |
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case 2: |
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channels = AD193X_2_CHANNELS; |
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break; |
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case 4: |
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channels = AD193X_4_CHANNELS; |
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break; |
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case 8: |
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channels = AD193X_8_CHANNELS; |
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break; |
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case 16: |
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channels = AD193X_16_CHANNELS; |
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break; |
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default: |
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return -EINVAL; |
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} |
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regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1, |
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AD193X_DAC_CHAN_MASK, channels << AD193X_DAC_CHAN_SHFT); |
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if (ad193x_has_adc(ad193x)) |
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regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2, |
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AD193X_ADC_CHAN_MASK, |
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channels << AD193X_ADC_CHAN_SHFT); |
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return 0; |
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} |
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static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai, |
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unsigned int fmt) |
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{ |
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struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(codec_dai->component); |
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unsigned int adc_serfmt = 0; |
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unsigned int dac_serfmt = 0; |
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unsigned int adc_fmt = 0; |
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unsigned int dac_fmt = 0; |
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/* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S |
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* with TDM), ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A) and DAC I2S mode |
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* (SND_SOC_DAIFMT_I2S) |
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*/ |
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switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
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case SND_SOC_DAIFMT_I2S: |
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adc_serfmt |= AD193X_ADC_SERFMT_TDM; |
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dac_serfmt |= AD193X_DAC_SERFMT_STEREO; |
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break; |
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case SND_SOC_DAIFMT_DSP_A: |
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adc_serfmt |= AD193X_ADC_SERFMT_AUX; |
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dac_serfmt |= AD193X_DAC_SERFMT_TDM; |
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break; |
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default: |
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if (ad193x_has_adc(ad193x)) |
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return -EINVAL; |
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} |
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switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
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case SND_SOC_DAIFMT_NB_NF: /* normal bit clock + frame */ |
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break; |
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case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */ |
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adc_fmt |= AD193X_ADC_LEFT_HIGH; |
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dac_fmt |= AD193X_DAC_LEFT_HIGH; |
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break; |
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case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */ |
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adc_fmt |= AD193X_ADC_BCLK_INV; |
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dac_fmt |= AD193X_DAC_BCLK_INV; |
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break; |
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case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */ |
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adc_fmt |= AD193X_ADC_LEFT_HIGH; |
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adc_fmt |= AD193X_ADC_BCLK_INV; |
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dac_fmt |= AD193X_DAC_LEFT_HIGH; |
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dac_fmt |= AD193X_DAC_BCLK_INV; |
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break; |
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default: |
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return -EINVAL; |
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} |
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/* For DSP_*, LRCLK's polarity must be inverted */ |
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if (fmt & SND_SOC_DAIFMT_DSP_A) |
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dac_fmt ^= AD193X_DAC_LEFT_HIGH; |
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switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
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case SND_SOC_DAIFMT_CBM_CFM: /* codec clk & frm master */ |
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adc_fmt |= AD193X_ADC_LCR_MASTER; |
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adc_fmt |= AD193X_ADC_BCLK_MASTER; |
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dac_fmt |= AD193X_DAC_LCR_MASTER; |
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dac_fmt |= AD193X_DAC_BCLK_MASTER; |
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break; |
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case SND_SOC_DAIFMT_CBS_CFM: /* codec clk slave & frm master */ |
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adc_fmt |= AD193X_ADC_LCR_MASTER; |
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dac_fmt |= AD193X_DAC_LCR_MASTER; |
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break; |
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case SND_SOC_DAIFMT_CBM_CFS: /* codec clk master & frame slave */ |
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adc_fmt |= AD193X_ADC_BCLK_MASTER; |
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dac_fmt |= AD193X_DAC_BCLK_MASTER; |
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break; |
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case SND_SOC_DAIFMT_CBS_CFS: /* codec clk & frm slave */ |
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break; |
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default: |
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return -EINVAL; |
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} |
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if (ad193x_has_adc(ad193x)) { |
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regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL1, |
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AD193X_ADC_SERFMT_MASK, adc_serfmt); |
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regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2, |
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AD193X_ADC_FMT_MASK, adc_fmt); |
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} |
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regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL0, |
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AD193X_DAC_SERFMT_MASK, dac_serfmt); |
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regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1, |
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AD193X_DAC_FMT_MASK, dac_fmt); |
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return 0; |
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} |
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static int ad193x_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
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int clk_id, unsigned int freq, int dir) |
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{ |
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struct snd_soc_component *component = codec_dai->component; |
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struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); |
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struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component); |
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if (clk_id == AD193X_SYSCLK_MCLK) { |
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/* MCLK must be 512 x fs */ |
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if (dir == SND_SOC_CLOCK_OUT || freq != 24576000) |
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return -EINVAL; |
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regmap_update_bits(ad193x->regmap, AD193X_PLL_CLK_CTRL1, |
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AD193X_PLL_SRC_MASK, |
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AD193X_PLL_DAC_SRC_MCLK | |
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AD193X_PLL_CLK_SRC_MCLK); |
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snd_soc_dapm_sync(dapm); |
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return 0; |
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} |
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switch (freq) { |
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case 12288000: |
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case 18432000: |
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case 24576000: |
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case 36864000: |
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ad193x->sysclk = freq; |
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return 0; |
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} |
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return -EINVAL; |
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} |
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static int ad193x_hw_params(struct snd_pcm_substream *substream, |
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struct snd_pcm_hw_params *params, |
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struct snd_soc_dai *dai) |
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{ |
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int word_len = 0, master_rate = 0; |
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struct snd_soc_component *component = dai->component; |
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struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component); |
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/* bit size */ |
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switch (params_width(params)) { |
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case 16: |
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word_len = 3; |
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break; |
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case 20: |
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word_len = 1; |
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break; |
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case 24: |
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case 32: |
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word_len = 0; |
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break; |
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} |
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switch (ad193x->sysclk) { |
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case 12288000: |
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master_rate = AD193X_PLL_INPUT_256; |
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break; |
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case 18432000: |
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master_rate = AD193X_PLL_INPUT_384; |
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break; |
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case 24576000: |
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master_rate = AD193X_PLL_INPUT_512; |
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break; |
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case 36864000: |
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master_rate = AD193X_PLL_INPUT_768; |
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break; |
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} |
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regmap_update_bits(ad193x->regmap, AD193X_PLL_CLK_CTRL0, |
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AD193X_PLL_INPUT_MASK, master_rate); |
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regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2, |
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AD193X_DAC_WORD_LEN_MASK, |
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word_len << AD193X_DAC_WORD_LEN_SHFT); |
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if (ad193x_has_adc(ad193x)) |
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regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL1, |
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AD193X_ADC_WORD_LEN_MASK, word_len); |
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return 0; |
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} |
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static int ad193x_startup(struct snd_pcm_substream *substream, |
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struct snd_soc_dai *dai) |
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{ |
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return snd_pcm_hw_constraint_list(substream->runtime, 0, |
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SNDRV_PCM_HW_PARAM_SAMPLE_BITS, |
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&constr); |
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} |
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static const struct snd_soc_dai_ops ad193x_dai_ops = { |
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.startup = ad193x_startup, |
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.hw_params = ad193x_hw_params, |
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.mute_stream = ad193x_mute, |
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.set_tdm_slot = ad193x_set_tdm_slot, |
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.set_sysclk = ad193x_set_dai_sysclk, |
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.set_fmt = ad193x_set_dai_fmt, |
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.no_capture_mute = 1, |
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}; |
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/* codec DAI instance */ |
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static struct snd_soc_dai_driver ad193x_dai = { |
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.name = "ad193x-hifi", |
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.playback = { |
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.stream_name = "Playback", |
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.channels_min = 2, |
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.channels_max = 8, |
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.rates = SNDRV_PCM_RATE_48000, |
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.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | |
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SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, |
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}, |
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.capture = { |
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.stream_name = "Capture", |
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.channels_min = 2, |
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.channels_max = 4, |
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.rates = SNDRV_PCM_RATE_48000, |
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.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | |
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SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, |
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}, |
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.ops = &ad193x_dai_ops, |
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}; |
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/* codec DAI instance for DAC only */ |
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static struct snd_soc_dai_driver ad193x_no_adc_dai = { |
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.name = "ad193x-hifi", |
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.playback = { |
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.stream_name = "Playback", |
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.channels_min = 2, |
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.channels_max = 8, |
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.rates = SNDRV_PCM_RATE_48000, |
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.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | |
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SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, |
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}, |
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.ops = &ad193x_dai_ops, |
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}; |
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|
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/* codec register values to set after reset */ |
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static void ad193x_reg_default_init(struct ad193x_priv *ad193x) |
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{ |
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static const struct reg_sequence reg_init[] = { |
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{ 0, 0x99 }, /* PLL_CLK_CTRL0: pll input: mclki/xi 12.288Mhz */ |
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{ 1, 0x04 }, /* PLL_CLK_CTRL1: no on-chip Vref */ |
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{ 2, 0x40 }, /* DAC_CTRL0: TDM mode */ |
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{ 3, 0x00 }, /* DAC_CTRL1: reset */ |
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{ 4, 0x1A }, /* DAC_CTRL2: 48kHz de-emphasis, unmute dac */ |
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{ 5, 0x00 }, /* DAC_CHNL_MUTE: unmute DAC channels */ |
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{ 6, 0x00 }, /* DAC_L1_VOL: no attenuation */ |
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{ 7, 0x00 }, /* DAC_R1_VOL: no attenuation */ |
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{ 8, 0x00 }, /* DAC_L2_VOL: no attenuation */ |
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{ 9, 0x00 }, /* DAC_R2_VOL: no attenuation */ |
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{ 10, 0x00 }, /* DAC_L3_VOL: no attenuation */ |
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{ 11, 0x00 }, /* DAC_R3_VOL: no attenuation */ |
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{ 12, 0x00 }, /* DAC_L4_VOL: no attenuation */ |
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{ 13, 0x00 }, /* DAC_R4_VOL: no attenuation */ |
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}; |
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static const struct reg_sequence reg_adc_init[] = { |
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{ 14, 0x03 }, /* ADC_CTRL0: high-pass filter enable */ |
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{ 15, 0x43 }, /* ADC_CTRL1: sata delay=1, adc aux mode */ |
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{ 16, 0x00 }, /* ADC_CTRL2: reset */ |
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}; |
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|
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regmap_multi_reg_write(ad193x->regmap, reg_init, ARRAY_SIZE(reg_init)); |
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|
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if (ad193x_has_adc(ad193x)) { |
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regmap_multi_reg_write(ad193x->regmap, reg_adc_init, |
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ARRAY_SIZE(reg_adc_init)); |
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} |
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} |
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|
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static int ad193x_component_probe(struct snd_soc_component *component) |
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{ |
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struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component); |
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struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); |
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int num, ret; |
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|
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/* default setting for ad193x */ |
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ad193x_reg_default_init(ad193x); |
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|
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/* adc only */ |
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if (ad193x_has_adc(ad193x)) { |
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/* add adc controls */ |
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num = ARRAY_SIZE(ad193x_adc_snd_controls); |
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ret = snd_soc_add_component_controls(component, |
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ad193x_adc_snd_controls, |
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num); |
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if (ret) |
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return ret; |
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|
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/* add adc widgets */ |
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num = ARRAY_SIZE(ad193x_adc_widgets); |
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ret = snd_soc_dapm_new_controls(dapm, |
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ad193x_adc_widgets, |
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num); |
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if (ret) |
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return ret; |
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|
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/* add adc routes */ |
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num = ARRAY_SIZE(ad193x_adc_audio_paths); |
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ret = snd_soc_dapm_add_routes(dapm, |
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ad193x_adc_audio_paths, |
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num); |
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if (ret) |
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return ret; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static const struct snd_soc_component_driver soc_component_dev_ad193x = { |
|
.probe = ad193x_component_probe, |
|
.controls = ad193x_snd_controls, |
|
.num_controls = ARRAY_SIZE(ad193x_snd_controls), |
|
.dapm_widgets = ad193x_dapm_widgets, |
|
.num_dapm_widgets = ARRAY_SIZE(ad193x_dapm_widgets), |
|
.dapm_routes = audio_paths, |
|
.num_dapm_routes = ARRAY_SIZE(audio_paths), |
|
.idle_bias_on = 1, |
|
.use_pmdown_time = 1, |
|
.endianness = 1, |
|
.non_legacy_dai_naming = 1, |
|
}; |
|
|
|
const struct regmap_config ad193x_regmap_config = { |
|
.max_register = AD193X_NUM_REGS - 1, |
|
}; |
|
EXPORT_SYMBOL_GPL(ad193x_regmap_config); |
|
|
|
int ad193x_probe(struct device *dev, struct regmap *regmap, |
|
enum ad193x_type type) |
|
{ |
|
struct ad193x_priv *ad193x; |
|
|
|
if (IS_ERR(regmap)) |
|
return PTR_ERR(regmap); |
|
|
|
ad193x = devm_kzalloc(dev, sizeof(*ad193x), GFP_KERNEL); |
|
if (ad193x == NULL) |
|
return -ENOMEM; |
|
|
|
ad193x->regmap = regmap; |
|
ad193x->type = type; |
|
|
|
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_no_adc_dai, 1); |
|
} |
|
EXPORT_SYMBOL_GPL(ad193x_probe); |
|
|
|
MODULE_DESCRIPTION("ASoC ad193x driver"); |
|
MODULE_AUTHOR("Barry Song <[email protected]>"); |
|
MODULE_LICENSE("GPL");
|
|
|