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- // SPDX-License-Identifier: GPL-2.0-only
- /*
- * es8316.c -- es8316 ALSA SoC audio driver
- * Copyright Everest Semiconductor Co.,Ltd
- *
- * Authors: David Yang <[email protected]>,
- * Daniel Drake <[email protected]>
- */
- #include <linux/module.h>
- #include <linux/acpi.h>
- #include <linux/clk.h>
- #include <linux/delay.h>
- #include <linux/i2c.h>
- #include <linux/mod_devicetable.h>
- #include <linux/mutex.h>
- #include <linux/regmap.h>
- #include <sound/pcm.h>
- #include <sound/pcm_params.h>
- #include <sound/soc.h>
- #include <sound/soc-dapm.h>
- #include <sound/tlv.h>
- #include <sound/jack.h>
- #include "es8316.h"
- /* In slave mode at single speed, the codec is documented as accepting 5
- * MCLK/LRCK ratios, but we also add ratio 400, which is commonly used on
- * Intel Cherry Trail platforms (19.2MHz MCLK, 48kHz LRCK).
- */
- #define NR_SUPPORTED_MCLK_LRCK_RATIOS 6
- static const unsigned int supported_mclk_lrck_ratios[] = {
- 256, 384, 400, 512, 768, 1024
- };
- struct es8316_priv {
- struct mutex lock;
- struct clk *mclk;
- struct regmap *regmap;
- struct snd_soc_component *component;
- struct snd_soc_jack *jack;
- int irq;
- unsigned int sysclk;
- unsigned int allowed_rates[NR_SUPPORTED_MCLK_LRCK_RATIOS];
- struct snd_pcm_hw_constraint_list sysclk_constraints;
- bool jd_inverted;
- };
- /*
- * ES8316 controls
- */
- static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(dac_vol_tlv, -9600, 50, 1);
- static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(adc_vol_tlv, -9600, 50, 1);
- static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_max_gain_tlv, -650, 150, 0);
- static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_min_gain_tlv, -1200, 150, 0);
- static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(alc_target_tlv,
- 0, 10, TLV_DB_SCALE_ITEM(-1650, 150, 0),
- 11, 11, TLV_DB_SCALE_ITEM(-150, 0, 0),
- );
- static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(hpmixer_gain_tlv,
- 0, 4, TLV_DB_SCALE_ITEM(-1200, 150, 0),
- 8, 11, TLV_DB_SCALE_ITEM(-450, 150, 0),
- );
- static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(adc_pga_gain_tlv,
- 0, 0, TLV_DB_SCALE_ITEM(-350, 0, 0),
- 1, 1, TLV_DB_SCALE_ITEM(0, 0, 0),
- 2, 2, TLV_DB_SCALE_ITEM(250, 0, 0),
- 3, 3, TLV_DB_SCALE_ITEM(450, 0, 0),
- 4, 7, TLV_DB_SCALE_ITEM(700, 300, 0),
- 8, 10, TLV_DB_SCALE_ITEM(1800, 300, 0),
- );
- static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(hpout_vol_tlv,
- 0, 0, TLV_DB_SCALE_ITEM(-4800, 0, 0),
- 1, 3, TLV_DB_SCALE_ITEM(-2400, 1200, 0),
- );
- static const char * const ng_type_txt[] =
- { "Constant PGA Gain", "Mute ADC Output" };
- static const struct soc_enum ng_type =
- SOC_ENUM_SINGLE(ES8316_ADC_ALC_NG, 6, 2, ng_type_txt);
- static const char * const adcpol_txt[] = { "Normal", "Invert" };
- static const struct soc_enum adcpol =
- SOC_ENUM_SINGLE(ES8316_ADC_MUTE, 1, 2, adcpol_txt);
- static const char *const dacpol_txt[] =
- { "Normal", "R Invert", "L Invert", "L + R Invert" };
- static const struct soc_enum dacpol =
- SOC_ENUM_SINGLE(ES8316_DAC_SET1, 0, 4, dacpol_txt);
- static const struct snd_kcontrol_new es8316_snd_controls[] = {
- SOC_DOUBLE_TLV("Headphone Playback Volume", ES8316_CPHP_ICAL_VOL,
- 4, 0, 3, 1, hpout_vol_tlv),
- SOC_DOUBLE_TLV("Headphone Mixer Volume", ES8316_HPMIX_VOL,
- 4, 0, 11, 0, hpmixer_gain_tlv),
- SOC_ENUM("Playback Polarity", dacpol),
- SOC_DOUBLE_R_TLV("DAC Playback Volume", ES8316_DAC_VOLL,
- ES8316_DAC_VOLR, 0, 0xc0, 1, dac_vol_tlv),
- SOC_SINGLE("DAC Soft Ramp Switch", ES8316_DAC_SET1, 4, 1, 1),
- SOC_SINGLE("DAC Soft Ramp Rate", ES8316_DAC_SET1, 2, 4, 0),
- SOC_SINGLE("DAC Notch Filter Switch", ES8316_DAC_SET2, 6, 1, 0),
- SOC_SINGLE("DAC Double Fs Switch", ES8316_DAC_SET2, 7, 1, 0),
- SOC_SINGLE("DAC Stereo Enhancement", ES8316_DAC_SET3, 0, 7, 0),
- SOC_SINGLE("DAC Mono Mix Switch", ES8316_DAC_SET3, 3, 1, 0),
- SOC_ENUM("Capture Polarity", adcpol),
- SOC_SINGLE("Mic Boost Switch", ES8316_ADC_D2SEPGA, 0, 1, 0),
- SOC_SINGLE_TLV("ADC Capture Volume", ES8316_ADC_VOLUME,
- 0, 0xc0, 1, adc_vol_tlv),
- SOC_SINGLE_TLV("ADC PGA Gain Volume", ES8316_ADC_PGAGAIN,
- 4, 10, 0, adc_pga_gain_tlv),
- SOC_SINGLE("ADC Soft Ramp Switch", ES8316_ADC_MUTE, 4, 1, 0),
- SOC_SINGLE("ADC Double Fs Switch", ES8316_ADC_DMIC, 4, 1, 0),
- SOC_SINGLE("ALC Capture Switch", ES8316_ADC_ALC1, 6, 1, 0),
- SOC_SINGLE_TLV("ALC Capture Max Volume", ES8316_ADC_ALC1, 0, 28, 0,
- alc_max_gain_tlv),
- SOC_SINGLE_TLV("ALC Capture Min Volume", ES8316_ADC_ALC2, 0, 28, 0,
- alc_min_gain_tlv),
- SOC_SINGLE_TLV("ALC Capture Target Volume", ES8316_ADC_ALC3, 4, 11, 0,
- alc_target_tlv),
- SOC_SINGLE("ALC Capture Hold Time", ES8316_ADC_ALC3, 0, 10, 0),
- SOC_SINGLE("ALC Capture Decay Time", ES8316_ADC_ALC4, 4, 10, 0),
- SOC_SINGLE("ALC Capture Attack Time", ES8316_ADC_ALC4, 0, 10, 0),
- SOC_SINGLE("ALC Capture Noise Gate Switch", ES8316_ADC_ALC_NG,
- 5, 1, 0),
- SOC_SINGLE("ALC Capture Noise Gate Threshold", ES8316_ADC_ALC_NG,
- 0, 31, 0),
- SOC_ENUM("ALC Capture Noise Gate Type", ng_type),
- };
- /* Analog Input Mux */
- static const char * const es8316_analog_in_txt[] = {
- "lin1-rin1",
- "lin2-rin2",
- "lin1-rin1 with 20db Boost",
- "lin2-rin2 with 20db Boost"
- };
- static const unsigned int es8316_analog_in_values[] = { 0, 1, 2, 3 };
- static const struct soc_enum es8316_analog_input_enum =
- SOC_VALUE_ENUM_SINGLE(ES8316_ADC_PDN_LINSEL, 4, 3,
- ARRAY_SIZE(es8316_analog_in_txt),
- es8316_analog_in_txt,
- es8316_analog_in_values);
- static const struct snd_kcontrol_new es8316_analog_in_mux_controls =
- SOC_DAPM_ENUM("Route", es8316_analog_input_enum);
- static const char * const es8316_dmic_txt[] = {
- "dmic disable",
- "dmic data at high level",
- "dmic data at low level",
- };
- static const unsigned int es8316_dmic_values[] = { 0, 2, 3 };
- static const struct soc_enum es8316_dmic_src_enum =
- SOC_VALUE_ENUM_SINGLE(ES8316_ADC_DMIC, 0, 3,
- ARRAY_SIZE(es8316_dmic_txt),
- es8316_dmic_txt,
- es8316_dmic_values);
- static const struct snd_kcontrol_new es8316_dmic_src_controls =
- SOC_DAPM_ENUM("Route", es8316_dmic_src_enum);
- /* hp mixer mux */
- static const char * const es8316_hpmux_texts[] = {
- "lin1-rin1",
- "lin2-rin2",
- "lin-rin with Boost",
- "lin-rin with Boost and PGA"
- };
- static SOC_ENUM_SINGLE_DECL(es8316_left_hpmux_enum, ES8316_HPMIX_SEL,
- 4, es8316_hpmux_texts);
- static const struct snd_kcontrol_new es8316_left_hpmux_controls =
- SOC_DAPM_ENUM("Route", es8316_left_hpmux_enum);
- static SOC_ENUM_SINGLE_DECL(es8316_right_hpmux_enum, ES8316_HPMIX_SEL,
- 0, es8316_hpmux_texts);
- static const struct snd_kcontrol_new es8316_right_hpmux_controls =
- SOC_DAPM_ENUM("Route", es8316_right_hpmux_enum);
- /* headphone Output Mixer */
- static const struct snd_kcontrol_new es8316_out_left_mix[] = {
- SOC_DAPM_SINGLE("LLIN Switch", ES8316_HPMIX_SWITCH, 6, 1, 0),
- SOC_DAPM_SINGLE("Left DAC Switch", ES8316_HPMIX_SWITCH, 7, 1, 0),
- };
- static const struct snd_kcontrol_new es8316_out_right_mix[] = {
- SOC_DAPM_SINGLE("RLIN Switch", ES8316_HPMIX_SWITCH, 2, 1, 0),
- SOC_DAPM_SINGLE("Right DAC Switch", ES8316_HPMIX_SWITCH, 3, 1, 0),
- };
- /* DAC data source mux */
- static const char * const es8316_dacsrc_texts[] = {
- "LDATA TO LDAC, RDATA TO RDAC",
- "LDATA TO LDAC, LDATA TO RDAC",
- "RDATA TO LDAC, RDATA TO RDAC",
- "RDATA TO LDAC, LDATA TO RDAC",
- };
- static SOC_ENUM_SINGLE_DECL(es8316_dacsrc_mux_enum, ES8316_DAC_SET1,
- 6, es8316_dacsrc_texts);
- static const struct snd_kcontrol_new es8316_dacsrc_mux_controls =
- SOC_DAPM_ENUM("Route", es8316_dacsrc_mux_enum);
- static const struct snd_soc_dapm_widget es8316_dapm_widgets[] = {
- SND_SOC_DAPM_SUPPLY("Bias", ES8316_SYS_PDN, 3, 1, NULL, 0),
- SND_SOC_DAPM_SUPPLY("Analog power", ES8316_SYS_PDN, 4, 1, NULL, 0),
- SND_SOC_DAPM_SUPPLY("Mic Bias", ES8316_SYS_PDN, 5, 1, NULL, 0),
- SND_SOC_DAPM_INPUT("DMIC"),
- SND_SOC_DAPM_INPUT("MIC1"),
- SND_SOC_DAPM_INPUT("MIC2"),
- /* Input Mux */
- SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0,
- &es8316_analog_in_mux_controls),
- SND_SOC_DAPM_SUPPLY("ADC Vref", ES8316_SYS_PDN, 1, 1, NULL, 0),
- SND_SOC_DAPM_SUPPLY("ADC bias", ES8316_SYS_PDN, 2, 1, NULL, 0),
- SND_SOC_DAPM_SUPPLY("ADC Clock", ES8316_CLKMGR_CLKSW, 3, 0, NULL, 0),
- SND_SOC_DAPM_PGA("Line input PGA", ES8316_ADC_PDN_LINSEL,
- 7, 1, NULL, 0),
- SND_SOC_DAPM_ADC("Mono ADC", NULL, ES8316_ADC_PDN_LINSEL, 6, 1),
- SND_SOC_DAPM_MUX("Digital Mic Mux", SND_SOC_NOPM, 0, 0,
- &es8316_dmic_src_controls),
- /* Digital Interface */
- SND_SOC_DAPM_AIF_OUT("I2S OUT", "I2S1 Capture", 1,
- ES8316_SERDATA_ADC, 6, 1),
- SND_SOC_DAPM_AIF_IN("I2S IN", "I2S1 Playback", 0,
- SND_SOC_NOPM, 0, 0),
- SND_SOC_DAPM_MUX("DAC Source Mux", SND_SOC_NOPM, 0, 0,
- &es8316_dacsrc_mux_controls),
- SND_SOC_DAPM_SUPPLY("DAC Vref", ES8316_SYS_PDN, 0, 1, NULL, 0),
- SND_SOC_DAPM_SUPPLY("DAC Clock", ES8316_CLKMGR_CLKSW, 2, 0, NULL, 0),
- SND_SOC_DAPM_DAC("Right DAC", NULL, ES8316_DAC_PDN, 0, 1),
- SND_SOC_DAPM_DAC("Left DAC", NULL, ES8316_DAC_PDN, 4, 1),
- /* Headphone Output Side */
- SND_SOC_DAPM_MUX("Left Headphone Mux", SND_SOC_NOPM, 0, 0,
- &es8316_left_hpmux_controls),
- SND_SOC_DAPM_MUX("Right Headphone Mux", SND_SOC_NOPM, 0, 0,
- &es8316_right_hpmux_controls),
- SND_SOC_DAPM_MIXER("Left Headphone Mixer", ES8316_HPMIX_PDN,
- 5, 1, &es8316_out_left_mix[0],
- ARRAY_SIZE(es8316_out_left_mix)),
- SND_SOC_DAPM_MIXER("Right Headphone Mixer", ES8316_HPMIX_PDN,
- 1, 1, &es8316_out_right_mix[0],
- ARRAY_SIZE(es8316_out_right_mix)),
- SND_SOC_DAPM_PGA("Left Headphone Mixer Out", ES8316_HPMIX_PDN,
- 4, 1, NULL, 0),
- SND_SOC_DAPM_PGA("Right Headphone Mixer Out", ES8316_HPMIX_PDN,
- 0, 1, NULL, 0),
- SND_SOC_DAPM_OUT_DRV("Left Headphone Charge Pump", ES8316_CPHP_OUTEN,
- 6, 0, NULL, 0),
- SND_SOC_DAPM_OUT_DRV("Right Headphone Charge Pump", ES8316_CPHP_OUTEN,
- 2, 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY("Headphone Charge Pump", ES8316_CPHP_PDN2,
- 5, 1, NULL, 0),
- SND_SOC_DAPM_SUPPLY("Headphone Charge Pump Clock", ES8316_CLKMGR_CLKSW,
- 4, 0, NULL, 0),
- SND_SOC_DAPM_OUT_DRV("Left Headphone Driver", ES8316_CPHP_OUTEN,
- 5, 0, NULL, 0),
- SND_SOC_DAPM_OUT_DRV("Right Headphone Driver", ES8316_CPHP_OUTEN,
- 1, 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY("Headphone Out", ES8316_CPHP_PDN1, 2, 1, NULL, 0),
- /* pdn_Lical and pdn_Rical bits are documented as Reserved, but must
- * be explicitly unset in order to enable HP output
- */
- SND_SOC_DAPM_SUPPLY("Left Headphone ical", ES8316_CPHP_ICAL_VOL,
- 7, 1, NULL, 0),
- SND_SOC_DAPM_SUPPLY("Right Headphone ical", ES8316_CPHP_ICAL_VOL,
- 3, 1, NULL, 0),
- SND_SOC_DAPM_OUTPUT("HPOL"),
- SND_SOC_DAPM_OUTPUT("HPOR"),
- };
- static const struct snd_soc_dapm_route es8316_dapm_routes[] = {
- /* Recording */
- {"MIC1", NULL, "Mic Bias"},
- {"MIC2", NULL, "Mic Bias"},
- {"MIC1", NULL, "Bias"},
- {"MIC2", NULL, "Bias"},
- {"MIC1", NULL, "Analog power"},
- {"MIC2", NULL, "Analog power"},
- {"Differential Mux", "lin1-rin1", "MIC1"},
- {"Differential Mux", "lin2-rin2", "MIC2"},
- {"Line input PGA", NULL, "Differential Mux"},
- {"Mono ADC", NULL, "ADC Clock"},
- {"Mono ADC", NULL, "ADC Vref"},
- {"Mono ADC", NULL, "ADC bias"},
- {"Mono ADC", NULL, "Line input PGA"},
- /* It's not clear why, but to avoid recording only silence,
- * the DAC clock must be running for the ADC to work.
- */
- {"Mono ADC", NULL, "DAC Clock"},
- {"Digital Mic Mux", "dmic disable", "Mono ADC"},
- {"I2S OUT", NULL, "Digital Mic Mux"},
- /* Playback */
- {"DAC Source Mux", "LDATA TO LDAC, RDATA TO RDAC", "I2S IN"},
- {"Left DAC", NULL, "DAC Clock"},
- {"Right DAC", NULL, "DAC Clock"},
- {"Left DAC", NULL, "DAC Vref"},
- {"Right DAC", NULL, "DAC Vref"},
- {"Left DAC", NULL, "DAC Source Mux"},
- {"Right DAC", NULL, "DAC Source Mux"},
- {"Left Headphone Mux", "lin-rin with Boost and PGA", "Line input PGA"},
- {"Right Headphone Mux", "lin-rin with Boost and PGA", "Line input PGA"},
- {"Left Headphone Mixer", "LLIN Switch", "Left Headphone Mux"},
- {"Left Headphone Mixer", "Left DAC Switch", "Left DAC"},
- {"Right Headphone Mixer", "RLIN Switch", "Right Headphone Mux"},
- {"Right Headphone Mixer", "Right DAC Switch", "Right DAC"},
- {"Left Headphone Mixer Out", NULL, "Left Headphone Mixer"},
- {"Right Headphone Mixer Out", NULL, "Right Headphone Mixer"},
- {"Left Headphone Charge Pump", NULL, "Left Headphone Mixer Out"},
- {"Right Headphone Charge Pump", NULL, "Right Headphone Mixer Out"},
- {"Left Headphone Charge Pump", NULL, "Headphone Charge Pump"},
- {"Right Headphone Charge Pump", NULL, "Headphone Charge Pump"},
- {"Left Headphone Charge Pump", NULL, "Headphone Charge Pump Clock"},
- {"Right Headphone Charge Pump", NULL, "Headphone Charge Pump Clock"},
- {"Left Headphone Driver", NULL, "Left Headphone Charge Pump"},
- {"Right Headphone Driver", NULL, "Right Headphone Charge Pump"},
- {"HPOL", NULL, "Left Headphone Driver"},
- {"HPOR", NULL, "Right Headphone Driver"},
- {"HPOL", NULL, "Left Headphone ical"},
- {"HPOR", NULL, "Right Headphone ical"},
- {"Headphone Out", NULL, "Bias"},
- {"Headphone Out", NULL, "Analog power"},
- {"HPOL", NULL, "Headphone Out"},
- {"HPOR", NULL, "Headphone Out"},
- };
- static int es8316_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 es8316_priv *es8316 = snd_soc_component_get_drvdata(component);
- int i, ret;
- int count = 0;
- es8316->sysclk = freq;
- es8316->sysclk_constraints.list = NULL;
- es8316->sysclk_constraints.count = 0;
- if (freq == 0)
- return 0;
- ret = clk_set_rate(es8316->mclk, freq);
- if (ret)
- return ret;
- /* Limit supported sample rates to ones that can be autodetected
- * by the codec running in slave mode.
- */
- for (i = 0; i < NR_SUPPORTED_MCLK_LRCK_RATIOS; i++) {
- const unsigned int ratio = supported_mclk_lrck_ratios[i];
- if (freq % ratio == 0)
- es8316->allowed_rates[count++] = freq / ratio;
- }
- if (count) {
- es8316->sysclk_constraints.list = es8316->allowed_rates;
- es8316->sysclk_constraints.count = count;
- }
- return 0;
- }
- static int es8316_set_dai_fmt(struct snd_soc_dai *codec_dai,
- unsigned int fmt)
- {
- struct snd_soc_component *component = codec_dai->component;
- u8 serdata1 = 0;
- u8 serdata2 = 0;
- u8 clksw;
- u8 mask;
- if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) == SND_SOC_DAIFMT_CBP_CFP)
- serdata1 |= ES8316_SERDATA1_MASTER;
- if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) != SND_SOC_DAIFMT_I2S) {
- dev_err(component->dev, "Codec driver only supports I2S format\n");
- return -EINVAL;
- }
- /* Clock inversion */
- switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
- case SND_SOC_DAIFMT_NB_NF:
- break;
- case SND_SOC_DAIFMT_IB_IF:
- serdata1 |= ES8316_SERDATA1_BCLK_INV;
- serdata2 |= ES8316_SERDATA2_ADCLRP;
- break;
- case SND_SOC_DAIFMT_IB_NF:
- serdata1 |= ES8316_SERDATA1_BCLK_INV;
- break;
- case SND_SOC_DAIFMT_NB_IF:
- serdata2 |= ES8316_SERDATA2_ADCLRP;
- break;
- default:
- return -EINVAL;
- }
- mask = ES8316_SERDATA1_MASTER | ES8316_SERDATA1_BCLK_INV;
- snd_soc_component_update_bits(component, ES8316_SERDATA1, mask, serdata1);
- mask = ES8316_SERDATA2_FMT_MASK | ES8316_SERDATA2_ADCLRP;
- snd_soc_component_update_bits(component, ES8316_SERDATA_ADC, mask, serdata2);
- snd_soc_component_update_bits(component, ES8316_SERDATA_DAC, mask, serdata2);
- /* Enable BCLK and MCLK inputs in slave mode */
- clksw = ES8316_CLKMGR_CLKSW_MCLK_ON | ES8316_CLKMGR_CLKSW_BCLK_ON;
- snd_soc_component_update_bits(component, ES8316_CLKMGR_CLKSW, clksw, clksw);
- return 0;
- }
- static int es8316_pcm_startup(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
- {
- struct snd_soc_component *component = dai->component;
- struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component);
- if (es8316->sysclk_constraints.list)
- snd_pcm_hw_constraint_list(substream->runtime, 0,
- SNDRV_PCM_HW_PARAM_RATE,
- &es8316->sysclk_constraints);
- return 0;
- }
- static int es8316_pcm_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *dai)
- {
- struct snd_soc_component *component = dai->component;
- struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component);
- u8 wordlen = 0;
- u8 bclk_divider;
- u16 lrck_divider;
- int i;
- /* Validate supported sample rates that are autodetected from MCLK */
- for (i = 0; i < NR_SUPPORTED_MCLK_LRCK_RATIOS; i++) {
- const unsigned int ratio = supported_mclk_lrck_ratios[i];
- if (es8316->sysclk % ratio != 0)
- continue;
- if (es8316->sysclk / ratio == params_rate(params))
- break;
- }
- if (i == NR_SUPPORTED_MCLK_LRCK_RATIOS)
- return -EINVAL;
- lrck_divider = es8316->sysclk / params_rate(params);
- bclk_divider = lrck_divider / 4;
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_S16_LE:
- wordlen = ES8316_SERDATA2_LEN_16;
- bclk_divider /= 16;
- break;
- case SNDRV_PCM_FORMAT_S20_3LE:
- wordlen = ES8316_SERDATA2_LEN_20;
- bclk_divider /= 20;
- break;
- case SNDRV_PCM_FORMAT_S24_LE:
- wordlen = ES8316_SERDATA2_LEN_24;
- bclk_divider /= 24;
- break;
- case SNDRV_PCM_FORMAT_S32_LE:
- wordlen = ES8316_SERDATA2_LEN_32;
- bclk_divider /= 32;
- break;
- default:
- return -EINVAL;
- }
- snd_soc_component_update_bits(component, ES8316_SERDATA_DAC,
- ES8316_SERDATA2_LEN_MASK, wordlen);
- snd_soc_component_update_bits(component, ES8316_SERDATA_ADC,
- ES8316_SERDATA2_LEN_MASK, wordlen);
- snd_soc_component_update_bits(component, ES8316_SERDATA1, 0x1f, bclk_divider);
- snd_soc_component_update_bits(component, ES8316_CLKMGR_ADCDIV1, 0x0f, lrck_divider >> 8);
- snd_soc_component_update_bits(component, ES8316_CLKMGR_ADCDIV2, 0xff, lrck_divider & 0xff);
- snd_soc_component_update_bits(component, ES8316_CLKMGR_DACDIV1, 0x0f, lrck_divider >> 8);
- snd_soc_component_update_bits(component, ES8316_CLKMGR_DACDIV2, 0xff, lrck_divider & 0xff);
- return 0;
- }
- static int es8316_mute(struct snd_soc_dai *dai, int mute, int direction)
- {
- snd_soc_component_update_bits(dai->component, ES8316_DAC_SET1, 0x20,
- mute ? 0x20 : 0);
- return 0;
- }
- #define ES8316_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
- SNDRV_PCM_FMTBIT_S24_LE)
- static const struct snd_soc_dai_ops es8316_ops = {
- .startup = es8316_pcm_startup,
- .hw_params = es8316_pcm_hw_params,
- .set_fmt = es8316_set_dai_fmt,
- .set_sysclk = es8316_set_dai_sysclk,
- .mute_stream = es8316_mute,
- .no_capture_mute = 1,
- };
- static struct snd_soc_dai_driver es8316_dai = {
- .name = "ES8316 HiFi",
- .playback = {
- .stream_name = "Playback",
- .channels_min = 1,
- .channels_max = 2,
- .rates = SNDRV_PCM_RATE_8000_48000,
- .formats = ES8316_FORMATS,
- },
- .capture = {
- .stream_name = "Capture",
- .channels_min = 1,
- .channels_max = 2,
- .rates = SNDRV_PCM_RATE_8000_48000,
- .formats = ES8316_FORMATS,
- },
- .ops = &es8316_ops,
- .symmetric_rate = 1,
- };
- static void es8316_enable_micbias_for_mic_gnd_short_detect(
- struct snd_soc_component *component)
- {
- struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
- snd_soc_dapm_mutex_lock(dapm);
- snd_soc_dapm_force_enable_pin_unlocked(dapm, "Bias");
- snd_soc_dapm_force_enable_pin_unlocked(dapm, "Analog power");
- snd_soc_dapm_force_enable_pin_unlocked(dapm, "Mic Bias");
- snd_soc_dapm_sync_unlocked(dapm);
- snd_soc_dapm_mutex_unlock(dapm);
- msleep(20);
- }
- static void es8316_disable_micbias_for_mic_gnd_short_detect(
- struct snd_soc_component *component)
- {
- struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
- snd_soc_dapm_mutex_lock(dapm);
- snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Bias");
- snd_soc_dapm_disable_pin_unlocked(dapm, "Analog power");
- snd_soc_dapm_disable_pin_unlocked(dapm, "Bias");
- snd_soc_dapm_sync_unlocked(dapm);
- snd_soc_dapm_mutex_unlock(dapm);
- }
- static irqreturn_t es8316_irq(int irq, void *data)
- {
- struct es8316_priv *es8316 = data;
- struct snd_soc_component *comp = es8316->component;
- unsigned int flags;
- mutex_lock(&es8316->lock);
- regmap_read(es8316->regmap, ES8316_GPIO_FLAG, &flags);
- if (flags == 0x00)
- goto out; /* Powered-down / reset */
- /* Catch spurious IRQ before set_jack is called */
- if (!es8316->jack)
- goto out;
- if (es8316->jd_inverted)
- flags ^= ES8316_GPIO_FLAG_HP_NOT_INSERTED;
- dev_dbg(comp->dev, "gpio flags %#04x\n", flags);
- if (flags & ES8316_GPIO_FLAG_HP_NOT_INSERTED) {
- /* Jack removed, or spurious IRQ? */
- if (es8316->jack->status & SND_JACK_MICROPHONE)
- es8316_disable_micbias_for_mic_gnd_short_detect(comp);
- if (es8316->jack->status & SND_JACK_HEADPHONE) {
- snd_soc_jack_report(es8316->jack, 0,
- SND_JACK_HEADSET | SND_JACK_BTN_0);
- dev_dbg(comp->dev, "jack unplugged\n");
- }
- } else if (!(es8316->jack->status & SND_JACK_HEADPHONE)) {
- /* Jack inserted, determine type */
- es8316_enable_micbias_for_mic_gnd_short_detect(comp);
- regmap_read(es8316->regmap, ES8316_GPIO_FLAG, &flags);
- if (es8316->jd_inverted)
- flags ^= ES8316_GPIO_FLAG_HP_NOT_INSERTED;
- dev_dbg(comp->dev, "gpio flags %#04x\n", flags);
- if (flags & ES8316_GPIO_FLAG_HP_NOT_INSERTED) {
- /* Jack unplugged underneath us */
- es8316_disable_micbias_for_mic_gnd_short_detect(comp);
- } else if (flags & ES8316_GPIO_FLAG_GM_NOT_SHORTED) {
- /* Open, headset */
- snd_soc_jack_report(es8316->jack,
- SND_JACK_HEADSET,
- SND_JACK_HEADSET);
- /* Keep mic-gnd-short detection on for button press */
- } else {
- /* Shorted, headphones */
- snd_soc_jack_report(es8316->jack,
- SND_JACK_HEADPHONE,
- SND_JACK_HEADSET);
- /* No longer need mic-gnd-short detection */
- es8316_disable_micbias_for_mic_gnd_short_detect(comp);
- }
- } else if (es8316->jack->status & SND_JACK_MICROPHONE) {
- /* Interrupt while jack inserted, report button state */
- if (flags & ES8316_GPIO_FLAG_GM_NOT_SHORTED) {
- /* Open, button release */
- snd_soc_jack_report(es8316->jack, 0, SND_JACK_BTN_0);
- } else {
- /* Short, button press */
- snd_soc_jack_report(es8316->jack,
- SND_JACK_BTN_0,
- SND_JACK_BTN_0);
- }
- }
- out:
- mutex_unlock(&es8316->lock);
- return IRQ_HANDLED;
- }
- static void es8316_enable_jack_detect(struct snd_soc_component *component,
- struct snd_soc_jack *jack)
- {
- struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component);
- /*
- * Init es8316->jd_inverted here and not in the probe, as we cannot
- * guarantee that the bytchr-es8316 driver, which might set this
- * property, will probe before us.
- */
- es8316->jd_inverted = device_property_read_bool(component->dev,
- "everest,jack-detect-inverted");
- mutex_lock(&es8316->lock);
- es8316->jack = jack;
- if (es8316->jack->status & SND_JACK_MICROPHONE)
- es8316_enable_micbias_for_mic_gnd_short_detect(component);
- snd_soc_component_update_bits(component, ES8316_GPIO_DEBOUNCE,
- ES8316_GPIO_ENABLE_INTERRUPT,
- ES8316_GPIO_ENABLE_INTERRUPT);
- mutex_unlock(&es8316->lock);
- /* Enable irq and sync initial jack state */
- enable_irq(es8316->irq);
- es8316_irq(es8316->irq, es8316);
- }
- static void es8316_disable_jack_detect(struct snd_soc_component *component)
- {
- struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component);
- if (!es8316->jack)
- return; /* Already disabled (or never enabled) */
- disable_irq(es8316->irq);
- mutex_lock(&es8316->lock);
- snd_soc_component_update_bits(component, ES8316_GPIO_DEBOUNCE,
- ES8316_GPIO_ENABLE_INTERRUPT, 0);
- if (es8316->jack->status & SND_JACK_MICROPHONE) {
- es8316_disable_micbias_for_mic_gnd_short_detect(component);
- snd_soc_jack_report(es8316->jack, 0, SND_JACK_BTN_0);
- }
- es8316->jack = NULL;
- mutex_unlock(&es8316->lock);
- }
- static int es8316_set_jack(struct snd_soc_component *component,
- struct snd_soc_jack *jack, void *data)
- {
- if (jack)
- es8316_enable_jack_detect(component, jack);
- else
- es8316_disable_jack_detect(component);
- return 0;
- }
- static int es8316_probe(struct snd_soc_component *component)
- {
- struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component);
- int ret;
- es8316->component = component;
- es8316->mclk = devm_clk_get_optional(component->dev, "mclk");
- if (IS_ERR(es8316->mclk)) {
- dev_err(component->dev, "unable to get mclk\n");
- return PTR_ERR(es8316->mclk);
- }
- if (!es8316->mclk)
- dev_warn(component->dev, "assuming static mclk\n");
- ret = clk_prepare_enable(es8316->mclk);
- if (ret) {
- dev_err(component->dev, "unable to enable mclk\n");
- return ret;
- }
- /* Reset codec and enable current state machine */
- snd_soc_component_write(component, ES8316_RESET, 0x3f);
- usleep_range(5000, 5500);
- snd_soc_component_write(component, ES8316_RESET, ES8316_RESET_CSM_ON);
- msleep(30);
- /*
- * Documentation is unclear, but this value from the vendor driver is
- * needed otherwise audio output is silent.
- */
- snd_soc_component_write(component, ES8316_SYS_VMIDSEL, 0xff);
- /*
- * Documentation for this register is unclear and incomplete,
- * but here is a vendor-provided value that improves volume
- * and quality for Intel CHT platforms.
- */
- snd_soc_component_write(component, ES8316_CLKMGR_ADCOSR, 0x32);
- return 0;
- }
- static void es8316_remove(struct snd_soc_component *component)
- {
- struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component);
- clk_disable_unprepare(es8316->mclk);
- }
- static int es8316_resume(struct snd_soc_component *component)
- {
- struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component);
- regcache_cache_only(es8316->regmap, false);
- regcache_sync(es8316->regmap);
- return 0;
- }
- static int es8316_suspend(struct snd_soc_component *component)
- {
- struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component);
- regcache_cache_only(es8316->regmap, true);
- regcache_mark_dirty(es8316->regmap);
- return 0;
- }
- static const struct snd_soc_component_driver soc_component_dev_es8316 = {
- .probe = es8316_probe,
- .remove = es8316_remove,
- .resume = es8316_resume,
- .suspend = es8316_suspend,
- .set_jack = es8316_set_jack,
- .controls = es8316_snd_controls,
- .num_controls = ARRAY_SIZE(es8316_snd_controls),
- .dapm_widgets = es8316_dapm_widgets,
- .num_dapm_widgets = ARRAY_SIZE(es8316_dapm_widgets),
- .dapm_routes = es8316_dapm_routes,
- .num_dapm_routes = ARRAY_SIZE(es8316_dapm_routes),
- .use_pmdown_time = 1,
- .endianness = 1,
- };
- static const struct regmap_range es8316_volatile_ranges[] = {
- regmap_reg_range(ES8316_GPIO_FLAG, ES8316_GPIO_FLAG),
- };
- static const struct regmap_access_table es8316_volatile_table = {
- .yes_ranges = es8316_volatile_ranges,
- .n_yes_ranges = ARRAY_SIZE(es8316_volatile_ranges),
- };
- static const struct regmap_config es8316_regmap = {
- .reg_bits = 8,
- .val_bits = 8,
- .use_single_read = true,
- .use_single_write = true,
- .max_register = 0x53,
- .volatile_table = &es8316_volatile_table,
- .cache_type = REGCACHE_RBTREE,
- };
- static int es8316_i2c_probe(struct i2c_client *i2c_client)
- {
- struct device *dev = &i2c_client->dev;
- struct es8316_priv *es8316;
- int ret;
- es8316 = devm_kzalloc(&i2c_client->dev, sizeof(struct es8316_priv),
- GFP_KERNEL);
- if (es8316 == NULL)
- return -ENOMEM;
- i2c_set_clientdata(i2c_client, es8316);
- es8316->regmap = devm_regmap_init_i2c(i2c_client, &es8316_regmap);
- if (IS_ERR(es8316->regmap))
- return PTR_ERR(es8316->regmap);
- es8316->irq = i2c_client->irq;
- mutex_init(&es8316->lock);
- if (es8316->irq > 0) {
- ret = devm_request_threaded_irq(dev, es8316->irq, NULL, es8316_irq,
- IRQF_TRIGGER_HIGH | IRQF_ONESHOT | IRQF_NO_AUTOEN,
- "es8316", es8316);
- if (ret) {
- dev_warn(dev, "Failed to get IRQ %d: %d\n", es8316->irq, ret);
- es8316->irq = -ENXIO;
- }
- }
- return devm_snd_soc_register_component(&i2c_client->dev,
- &soc_component_dev_es8316,
- &es8316_dai, 1);
- }
- static const struct i2c_device_id es8316_i2c_id[] = {
- {"es8316", 0 },
- {}
- };
- MODULE_DEVICE_TABLE(i2c, es8316_i2c_id);
- #ifdef CONFIG_OF
- static const struct of_device_id es8316_of_match[] = {
- { .compatible = "everest,es8316", },
- {},
- };
- MODULE_DEVICE_TABLE(of, es8316_of_match);
- #endif
- #ifdef CONFIG_ACPI
- static const struct acpi_device_id es8316_acpi_match[] = {
- {"ESSX8316", 0},
- {"ESSX8336", 0},
- {},
- };
- MODULE_DEVICE_TABLE(acpi, es8316_acpi_match);
- #endif
- static struct i2c_driver es8316_i2c_driver = {
- .driver = {
- .name = "es8316",
- .acpi_match_table = ACPI_PTR(es8316_acpi_match),
- .of_match_table = of_match_ptr(es8316_of_match),
- },
- .probe_new = es8316_i2c_probe,
- .id_table = es8316_i2c_id,
- };
- module_i2c_driver(es8316_i2c_driver);
- MODULE_DESCRIPTION("Everest Semi ES8316 ALSA SoC Codec Driver");
- MODULE_AUTHOR("David Yang <[email protected]>");
- MODULE_LICENSE("GPL v2");
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