Staging
v0.8.1
v0.8.1
https://github.com/torvalds/linux
Tip revision: c9c3395d5e3dcc6daee66c6908354d47bf98cb0c authored by Linus Torvalds on 19 February 2023, 22:24:22 UTC
Linux 6.2
Linux 6.2
Tip revision: c9c3395
es8326.c
// SPDX-License-Identifier: GPL-2.0-only
//
// es8326.c -- es8326 ALSA SoC audio driver
// Copyright Everest Semiconductor Co., Ltd
//
// Authors: David Yang <yangxiaohua@everest-semi.com>
//
#include <linux/clk.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <sound/jack.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/tlv.h>
#include "es8326.h"
struct es8326_priv {
struct clk *mclk;
struct i2c_client *i2c;
struct regmap *regmap;
struct snd_soc_component *component;
struct delayed_work jack_detect_work;
struct delayed_work button_press_work;
struct snd_soc_jack *jack;
int irq;
/* The lock protects the situation that an irq is generated
* while enabling or disabling or during an irq.
*/
struct mutex lock;
u8 mic1_src;
u8 mic2_src;
u8 jack_pol;
u8 interrupt_src;
u8 interrupt_clk;
bool jd_inverted;
unsigned int sysclk;
};
static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(dac_vol_tlv, -9550, 50, 0);
static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(adc_vol_tlv, -9550, 50, 0);
static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(adc_analog_pga_tlv, 0, 300, 0);
static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(adc_pga_tlv, 0, 600, 0);
static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(softramp_rate, 0, 100, 0);
static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(drc_target_tlv, -3200, 200, 0);
static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(drc_recovery_tlv, -125, 250, 0);
static const char *const winsize[] = {
"0.25db/2 LRCK",
"0.25db/4 LRCK",
"0.25db/8 LRCK",
"0.25db/16 LRCK",
"0.25db/32 LRCK",
"0.25db/64 LRCK",
"0.25db/128 LRCK",
"0.25db/256 LRCK",
"0.25db/512 LRCK",
"0.25db/1024 LRCK",
"0.25db/2048 LRCK",
"0.25db/4096 LRCK",
"0.25db/8192 LRCK",
"0.25db/16384 LRCK",
"0.25db/32768 LRCK",
"0.25db/65536 LRCK",
};
static const char *const dacpol_txt[] = {
"Normal", "R Invert", "L Invert", "L + R Invert" };
static const struct soc_enum dacpol =
SOC_ENUM_SINGLE(ES8326_DAC_DSM, 4, 4, dacpol_txt);
static const struct soc_enum alc_winsize =
SOC_ENUM_SINGLE(ES8326_ADC_RAMPRATE, 4, 16, winsize);
static const struct soc_enum drc_winsize =
SOC_ENUM_SINGLE(ES8326_DRC_WINSIZE, 4, 16, winsize);
static const struct snd_kcontrol_new es8326_snd_controls[] = {
SOC_SINGLE_TLV("DAC Playback Volume", ES8326_DAC_VOL, 0, 0xbf, 0, dac_vol_tlv),
SOC_ENUM("Playback Polarity", dacpol),
SOC_SINGLE_TLV("DAC Ramp Rate", ES8326_DAC_RAMPRATE, 0, 0x0f, 0, softramp_rate),
SOC_SINGLE_TLV("DRC Recovery Level", ES8326_DRC_RECOVERY, 0, 4, 0, drc_recovery_tlv),
SOC_ENUM("DRC Winsize", drc_winsize),
SOC_SINGLE_TLV("DRC Target Level", ES8326_DRC_WINSIZE, 0, 0x0f, 0, drc_target_tlv),
SOC_DOUBLE_R_TLV("ADC Capture Volume", ES8326_ADC1_VOL, ES8326_ADC2_VOL, 0, 0xff, 0,
adc_vol_tlv),
SOC_DOUBLE_TLV("ADC PGA Volume", ES8326_ADC_SCALE, 4, 0, 5, 0, adc_pga_tlv),
SOC_SINGLE_TLV("ADC PGA Gain Volume", ES8326_PGAGAIN, 0, 10, 0, adc_analog_pga_tlv),
SOC_SINGLE_TLV("ADC Ramp Rate", ES8326_ADC_RAMPRATE, 0, 0x0f, 0, softramp_rate),
SOC_SINGLE("ALC Capture Switch", ES8326_ALC_RECOVERY, 3, 1, 0),
SOC_SINGLE_TLV("ALC Capture Recovery Level", ES8326_ALC_LEVEL,
0, 4, 0, drc_recovery_tlv),
SOC_ENUM("ALC Capture Winsize", alc_winsize),
SOC_SINGLE_TLV("ALC Capture Target Level", ES8326_ALC_LEVEL,
0, 0x0f, 0, drc_target_tlv),
};
static const struct snd_soc_dapm_widget es8326_dapm_widgets[] = {
SND_SOC_DAPM_INPUT("MIC1"),
SND_SOC_DAPM_INPUT("MIC2"),
SND_SOC_DAPM_INPUT("MIC3"),
SND_SOC_DAPM_INPUT("MIC4"),
SND_SOC_DAPM_ADC("ADC L", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_ADC("ADC R", NULL, SND_SOC_NOPM, 0, 0),
/* Digital Interface */
SND_SOC_DAPM_AIF_OUT("I2S OUT", "I2S1 Capture", 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("I2S IN", "I2S1 Playback", 0, SND_SOC_NOPM, 0, 0),
/* ADC Digital Mute */
SND_SOC_DAPM_PGA("ADC L1", ES8326_ADC_MUTE, 0, 1, NULL, 0),
SND_SOC_DAPM_PGA("ADC R1", ES8326_ADC_MUTE, 1, 1, NULL, 0),
SND_SOC_DAPM_PGA("ADC L2", ES8326_ADC_MUTE, 2, 1, NULL, 0),
SND_SOC_DAPM_PGA("ADC R2", ES8326_ADC_MUTE, 3, 1, NULL, 0),
/* Analog Power Supply*/
SND_SOC_DAPM_DAC("Right DAC", NULL, ES8326_ANA_PDN, 0, 1),
SND_SOC_DAPM_DAC("Left DAC", NULL, ES8326_ANA_PDN, 1, 1),
SND_SOC_DAPM_SUPPLY("Analog Power", ES8326_ANA_PDN, 7, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("IBias Power", ES8326_ANA_PDN, 6, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("ADC Vref", ES8326_ANA_PDN, 5, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("DAC Vref", ES8326_ANA_PDN, 4, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("Vref Power", ES8326_ANA_PDN, 3, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("MICBIAS1", ES8326_ANA_MICBIAS, 2, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("MICBIAS2", ES8326_ANA_MICBIAS, 3, 0, NULL, 0),
SND_SOC_DAPM_PGA("LHPMIX", ES8326_DAC2HPMIX, 7, 0, NULL, 0),
SND_SOC_DAPM_PGA("RHPMIX", ES8326_DAC2HPMIX, 3, 0, NULL, 0),
/* Headphone Charge Pump and Output */
SND_SOC_DAPM_SUPPLY("HPOR Cal", ES8326_HP_CAL, 7, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("HPOL Cal", ES8326_HP_CAL, 3, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("Headphone Charge Pump", ES8326_HP_DRIVER,
3, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("Headphone Driver Bias", ES8326_HP_DRIVER,
2, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("Headphone LDO", ES8326_HP_DRIVER,
1, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("Headphone Reference", ES8326_HP_DRIVER,
0, 1, NULL, 0),
SND_SOC_DAPM_REG(snd_soc_dapm_supply, "HPOR Supply", ES8326_HP_CAL,
ES8326_HPOR_SHIFT, 7, 7, 0),
SND_SOC_DAPM_REG(snd_soc_dapm_supply, "HPOL Supply", ES8326_HP_CAL,
0, 7, 7, 0),
SND_SOC_DAPM_OUTPUT("HPOL"),
SND_SOC_DAPM_OUTPUT("HPOR"),
};
static const struct snd_soc_dapm_route es8326_dapm_routes[] = {
{"ADC L1", NULL, "MIC1"},
{"ADC R1", NULL, "MIC2"},
{"ADC L2", NULL, "MIC3"},
{"ADC R2", NULL, "MIC4"},
{"ADC L", NULL, "ADC L1"},
{"ADC R", NULL, "ADC R1"},
{"ADC L", NULL, "ADC L2"},
{"ADC R", NULL, "ADC R2"},
{"I2S OUT", NULL, "ADC L"},
{"I2S OUT", NULL, "ADC R"},
{"I2S OUT", NULL, "Analog Power"},
{"I2S OUT", NULL, "ADC Vref"},
{"I2S OUT", NULL, "Vref Power"},
{"I2S OUT", NULL, "IBias Power"},
{"I2S IN", NULL, "Analog Power"},
{"I2S IN", NULL, "DAC Vref"},
{"I2S IN", NULL, "Vref Power"},
{"I2S IN", NULL, "IBias Power"},
{"Right DAC", NULL, "I2S IN"},
{"Left DAC", NULL, "I2S IN"},
{"LHPMIX", NULL, "Left DAC"},
{"RHPMIX", NULL, "Right DAC"},
{"HPOR", NULL, "HPOR Cal"},
{"HPOL", NULL, "HPOL Cal"},
{"HPOR", NULL, "HPOR Supply"},
{"HPOL", NULL, "HPOL Supply"},
{"HPOL", NULL, "Headphone Charge Pump"},
{"HPOR", NULL, "Headphone Charge Pump"},
{"HPOL", NULL, "Headphone Driver Bias"},
{"HPOR", NULL, "Headphone Driver Bias"},
{"HPOL", NULL, "Headphone LDO"},
{"HPOR", NULL, "Headphone LDO"},
{"HPOL", NULL, "Headphone Reference"},
{"HPOR", NULL, "Headphone Reference"},
{"HPOL", NULL, "LHPMIX"},
{"HPOR", NULL, "RHPMIX"},
};
static const struct regmap_range es8326_volatile_ranges[] = {
regmap_reg_range(ES8326_HP_DETECT, ES8326_HP_DETECT),
};
static const struct regmap_access_table es8326_volatile_table = {
.yes_ranges = es8326_volatile_ranges,
.n_yes_ranges = ARRAY_SIZE(es8326_volatile_ranges),
};
static const struct regmap_config es8326_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0xff,
.volatile_table = &es8326_volatile_table,
.cache_type = REGCACHE_RBTREE,
};
struct _coeff_div {
u16 fs;
u32 rate;
u32 mclk;
u8 reg4;
u8 reg5;
u8 reg6;
u8 reg7;
u8 reg8;
u8 reg9;
u8 rega;
u8 regb;
};
/* codec hifi mclk clock divider coefficients */
/* {ratio, LRCK, MCLK, REG04, REG05, REG06, REG07, REG08, REG09, REG10, REG11} */
static const struct _coeff_div coeff_div[] = {
{32, 8000, 256000, 0x60, 0x00, 0x0F, 0x75, 0x0A, 0x1B, 0x1F, 0x7F},
{32, 16000, 512000, 0x20, 0x00, 0x0D, 0x75, 0x0A, 0x1B, 0x1F, 0x3F},
{32, 44100, 1411200, 0x00, 0x00, 0x13, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
{32, 48000, 1536000, 0x00, 0x00, 0x13, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
{36, 8000, 288000, 0x20, 0x00, 0x0D, 0x75, 0x0A, 0x1B, 0x23, 0x47},
{36, 16000, 576000, 0x20, 0x00, 0x0D, 0x75, 0x0A, 0x1B, 0x23, 0x47},
{48, 8000, 384000, 0x60, 0x02, 0x1F, 0x75, 0x0A, 0x1B, 0x1F, 0x7F},
{48, 16000, 768000, 0x20, 0x02, 0x0F, 0x75, 0x0A, 0x1B, 0x1F, 0x3F},
{48, 48000, 2304000, 0x00, 0x02, 0x0D, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
{64, 8000, 512000, 0x60, 0x00, 0x0D, 0x75, 0x0A, 0x1B, 0x1F, 0x7F},
{64, 16000, 1024000, 0x20, 0x00, 0x05, 0x75, 0x0A, 0x1B, 0x1F, 0x3F},
{64, 44100, 2822400, 0x00, 0x00, 0x11, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
{64, 48000, 3072000, 0x00, 0x00, 0x11, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
{72, 8000, 576000, 0x20, 0x00, 0x13, 0x35, 0x0A, 0x1B, 0x23, 0x47},
{72, 16000, 1152000, 0x20, 0x00, 0x05, 0x75, 0x0A, 0x1B, 0x23, 0x47},
{96, 8000, 768000, 0x60, 0x02, 0x1D, 0x75, 0x0A, 0x1B, 0x1F, 0x7F},
{96, 16000, 1536000, 0x20, 0x02, 0x0D, 0x75, 0x0A, 0x1B, 0x1F, 0x3F},
{100, 48000, 4800000, 0x04, 0x04, 0x3F, 0x6D, 0x38, 0x08, 0x4f, 0x1f},
{125, 48000, 6000000, 0x04, 0x04, 0x1F, 0x2D, 0x0A, 0x0A, 0x27, 0x27},
{128, 8000, 1024000, 0x60, 0x00, 0x13, 0x35, 0x0A, 0x1B, 0x1F, 0x7F},
{128, 16000, 2048000, 0x20, 0x00, 0x11, 0x35, 0x0A, 0x1B, 0x1F, 0x3F},
{128, 44100, 5644800, 0x00, 0x00, 0x01, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
{128, 48000, 6144000, 0x00, 0x00, 0x01, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
{144, 8000, 1152000, 0x20, 0x00, 0x03, 0x35, 0x0A, 0x1B, 0x23, 0x47},
{144, 16000, 2304000, 0x20, 0x00, 0x11, 0x35, 0x0A, 0x1B, 0x23, 0x47},
{192, 8000, 1536000, 0x60, 0x02, 0x0D, 0x75, 0x0A, 0x1B, 0x1F, 0x7F},
{192, 16000, 3072000, 0x20, 0x02, 0x05, 0x75, 0x0A, 0x1B, 0x1F, 0x3F},
{200, 48000, 9600000, 0x04, 0x04, 0x0F, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
{250, 48000, 12000000, 0x04, 0x04, 0x0F, 0x2D, 0x0A, 0x0A, 0x27, 0x27},
{256, 8000, 2048000, 0x60, 0x00, 0x11, 0x35, 0x0A, 0x1B, 0x1F, 0x7F},
{256, 16000, 4096000, 0x20, 0x00, 0x01, 0x35, 0x0A, 0x1B, 0x1F, 0x3F},
{256, 44100, 11289600, 0x00, 0x00, 0x10, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
{256, 48000, 12288000, 0x00, 0x00, 0x30, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
{288, 8000, 2304000, 0x20, 0x00, 0x01, 0x35, 0x0A, 0x1B, 0x23, 0x47},
{384, 8000, 3072000, 0x60, 0x02, 0x05, 0x75, 0x0A, 0x1B, 0x1F, 0x7F},
{384, 16000, 6144000, 0x20, 0x02, 0x03, 0x35, 0x0A, 0x1B, 0x1F, 0x3F},
{384, 48000, 18432000, 0x00, 0x02, 0x01, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
{400, 48000, 19200000, 0x09, 0x04, 0x0f, 0x6d, 0x3a, 0x0A, 0x4F, 0x1F},
{500, 48000, 24000000, 0x18, 0x04, 0x1F, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
{512, 8000, 4096000, 0x60, 0x00, 0x01, 0x35, 0x0A, 0x1B, 0x1F, 0x7F},
{512, 16000, 8192000, 0x20, 0x00, 0x10, 0x35, 0x0A, 0x1B, 0x1F, 0x3F},
{512, 44100, 22579200, 0x00, 0x00, 0x00, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
{512, 48000, 24576000, 0x00, 0x00, 0x00, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
{768, 8000, 6144000, 0x60, 0x02, 0x11, 0x35, 0x0A, 0x1B, 0x1F, 0x7F},
{768, 16000, 12288000, 0x20, 0x02, 0x01, 0x35, 0x0A, 0x1B, 0x1F, 0x3F},
{800, 48000, 38400000, 0x00, 0x18, 0x13, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
{1024, 8000, 8192000, 0x60, 0x00, 0x10, 0x35, 0x0A, 0x1B, 0x1F, 0x7F},
{1024, 16000, 16384000, 0x20, 0x00, 0x00, 0x35, 0x0A, 0x1B, 0x1F, 0x3F},
{1152, 16000, 18432000, 0x20, 0x08, 0x11, 0x35, 0x0A, 0x1B, 0x1F, 0x3F},
{1536, 8000, 12288000, 0x60, 0x02, 0x01, 0x35, 0x0A, 0x1B, 0x1F, 0x7F},
{1536, 16000, 24576000, 0x20, 0x02, 0x10, 0x35, 0x0A, 0x1B, 0x1F, 0x3F},
{1625, 8000, 13000000, 0x0C, 0x18, 0x1F, 0x2D, 0x0A, 0x0A, 0x27, 0x27},
{1625, 16000, 26000000, 0x0C, 0x18, 0x1F, 0x2D, 0x0A, 0x0A, 0x27, 0x27},
{2048, 8000, 16384000, 0x60, 0x00, 0x00, 0x35, 0x0A, 0x1B, 0x1F, 0x7F},
{2304, 8000, 18432000, 0x40, 0x02, 0x10, 0x35, 0x0A, 0x1B, 0x1F, 0x5F},
{3072, 8000, 24576000, 0x60, 0x02, 0x10, 0x35, 0x0A, 0x1B, 0x1F, 0x7F},
{3250, 8000, 26000000, 0x0C, 0x18, 0x0F, 0x2D, 0x0A, 0x0A, 0x27, 0x27},
};
static inline int get_coeff(int mclk, int rate)
{
int i;
for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
return i;
}
return -EINVAL;
}
static int es8326_set_dai_sysclk(struct snd_soc_dai *codec_dai,
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_component *codec = codec_dai->component;
struct es8326_priv *es8326 = snd_soc_component_get_drvdata(codec);
es8326->sysclk = freq;
return 0;
}
static int es8326_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
{
struct snd_soc_component *component = codec_dai->component;
u8 iface = 0;
switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
case SND_SOC_DAIFMT_CBC_CFP:
snd_soc_component_update_bits(component, ES8326_RESET,
ES8326_MASTER_MODE_EN, ES8326_MASTER_MODE_EN);
break;
case SND_SOC_DAIFMT_CBC_CFC:
break;
default:
return -EINVAL;
}
/* interface format */
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
break;
case SND_SOC_DAIFMT_RIGHT_J:
dev_err(component->dev, "Codec driver does not support right justified\n");
return -EINVAL;
case SND_SOC_DAIFMT_LEFT_J:
iface |= ES8326_DAIFMT_LEFT_J;
break;
case SND_SOC_DAIFMT_DSP_A:
iface |= ES8326_DAIFMT_DSP_A;
break;
case SND_SOC_DAIFMT_DSP_B:
iface |= ES8326_DAIFMT_DSP_B;
break;
default:
return -EINVAL;
}
snd_soc_component_update_bits(component, ES8326_FMT, ES8326_DAIFMT_MASK, iface);
return 0;
}
static int es8326_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 es8326_priv *es8326 = snd_soc_component_get_drvdata(component);
u8 srate = 0;
int coeff;
coeff = get_coeff(es8326->sysclk, params_rate(params));
/* bit size */
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
srate |= ES8326_S16_LE;
break;
case SNDRV_PCM_FORMAT_S20_3LE:
srate |= ES8326_S20_3_LE;
break;
case SNDRV_PCM_FORMAT_S18_3LE:
srate |= ES8326_S18_LE;
break;
case SNDRV_PCM_FORMAT_S24_LE:
srate |= ES8326_S24_LE;
break;
case SNDRV_PCM_FORMAT_S32_LE:
srate |= ES8326_S32_LE;
break;
default:
return -EINVAL;
}
/* set iface & srate */
snd_soc_component_update_bits(component, ES8326_FMT, ES8326_DATA_LEN_MASK, srate);
if (coeff >= 0) {
regmap_write(es8326->regmap, ES8326_CLK_DIV1,
coeff_div[coeff].reg4);
regmap_write(es8326->regmap, ES8326_CLK_DIV2,
coeff_div[coeff].reg5);
regmap_write(es8326->regmap, ES8326_CLK_DLL,
coeff_div[coeff].reg6);
regmap_write(es8326->regmap, ES8326_CLK_MUX,
coeff_div[coeff].reg7);
regmap_write(es8326->regmap, ES8326_CLK_ADC_SEL,
coeff_div[coeff].reg8);
regmap_write(es8326->regmap, ES8326_CLK_DAC_SEL,
coeff_div[coeff].reg9);
regmap_write(es8326->regmap, ES8326_CLK_ADC_OSR,
coeff_div[coeff].rega);
regmap_write(es8326->regmap, ES8326_CLK_DAC_OSR,
coeff_div[coeff].regb);
} else {
dev_warn(component->dev, "Clock coefficients do not match");
}
return 0;
}
static int es8326_set_bias_level(struct snd_soc_component *codec,
enum snd_soc_bias_level level)
{
struct es8326_priv *es8326 = snd_soc_component_get_drvdata(codec);
int ret;
switch (level) {
case SND_SOC_BIAS_ON:
ret = clk_prepare_enable(es8326->mclk);
if (ret)
return ret;
regmap_write(es8326->regmap, ES8326_RESET, ES8326_PWRUP_SEQ_EN);
regmap_write(es8326->regmap, ES8326_INTOUT_IO, 0x45);
regmap_write(es8326->regmap, ES8326_SDINOUT1_IO,
(ES8326_IO_DMIC_CLK << ES8326_SDINOUT1_SHIFT));
regmap_write(es8326->regmap, ES8326_SDINOUT23_IO, ES8326_IO_INPUT);
regmap_write(es8326->regmap, ES8326_CLK_RESAMPLE, 0x05);
regmap_write(es8326->regmap, ES8326_VMIDSEL, 0x02);
regmap_write(es8326->regmap, ES8326_PGA_PDN, 0x40);
regmap_write(es8326->regmap, ES8326_DAC2HPMIX, 0xAA);
regmap_write(es8326->regmap, ES8326_RESET, ES8326_CSM_ON);
break;
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
break;
case SND_SOC_BIAS_OFF:
clk_disable_unprepare(es8326->mclk);
regmap_write(es8326->regmap, ES8326_DAC2HPMIX, 0x11);
regmap_write(es8326->regmap, ES8326_RESET, ES8326_CSM_OFF);
regmap_write(es8326->regmap, ES8326_PGA_PDN, 0xF8);
regmap_write(es8326->regmap, ES8326_VMIDSEL, 0x00);
regmap_write(es8326->regmap, ES8326_INT_SOURCE, 0x08);
regmap_write(es8326->regmap, ES8326_SDINOUT1_IO, ES8326_IO_INPUT);
regmap_write(es8326->regmap, ES8326_SDINOUT23_IO, ES8326_IO_INPUT);
regmap_write(es8326->regmap, ES8326_RESET,
ES8326_CODEC_RESET | ES8326_PWRUP_SEQ_EN);
break;
}
return 0;
}
#define es8326_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
SNDRV_PCM_FMTBIT_S24_LE)
static const struct snd_soc_dai_ops es8326_ops = {
.hw_params = es8326_pcm_hw_params,
.set_fmt = es8326_set_dai_fmt,
.set_sysclk = es8326_set_dai_sysclk,
};
static struct snd_soc_dai_driver es8326_dai = {
.name = "ES8326 HiFi",
.playback = {
.stream_name = "Playback",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = es8326_FORMATS,
},
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = es8326_FORMATS,
},
.ops = &es8326_ops,
.symmetric_rate = 1,
};
static void es8326_enable_micbias(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, "MICBIAS1");
snd_soc_dapm_force_enable_pin_unlocked(dapm, "MICBIAS2");
snd_soc_dapm_sync_unlocked(dapm);
snd_soc_dapm_mutex_unlock(dapm);
}
static void es8326_disable_micbias(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, "MICBIAS1");
snd_soc_dapm_disable_pin_unlocked(dapm, "MICBIAS2");
snd_soc_dapm_sync_unlocked(dapm);
snd_soc_dapm_mutex_unlock(dapm);
}
/*
* For button detection, set the following in soundcard
* snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
* snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
* snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
*/
static void es8326_jack_button_handler(struct work_struct *work)
{
struct es8326_priv *es8326 =
container_of(work, struct es8326_priv, button_press_work.work);
struct snd_soc_component *comp = es8326->component;
unsigned int iface;
static int button_to_report, press_count;
static int prev_button, cur_button;
if (!(es8326->jack->status & SND_JACK_HEADSET)) /* Jack unplugged */
return;
mutex_lock(&es8326->lock);
iface = snd_soc_component_read(comp, ES8326_HP_DETECT);
switch (iface) {
case 0x93:
/* pause button detected */
cur_button = SND_JACK_BTN_0;
break;
case 0x6f:
/* button volume up */
cur_button = SND_JACK_BTN_1;
break;
case 0x27:
/* button volume down */
cur_button = SND_JACK_BTN_2;
break;
case 0x1e:
/* button released or not pressed */
cur_button = 0;
break;
default:
break;
}
if ((prev_button == cur_button) && (cur_button != 0)) {
press_count++;
if (press_count > 10) {
/* report a press every 500ms */
snd_soc_jack_report(es8326->jack, cur_button,
SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2);
press_count = 0;
}
button_to_report = cur_button;
queue_delayed_work(system_wq, &es8326->button_press_work,
msecs_to_jiffies(50));
} else if (prev_button != cur_button) {
/* mismatch, detect again */
prev_button = cur_button;
queue_delayed_work(system_wq, &es8326->button_press_work,
msecs_to_jiffies(50));
} else {
/* released or no pressed */
if (button_to_report != 0) {
snd_soc_jack_report(es8326->jack, button_to_report,
SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2);
snd_soc_jack_report(es8326->jack, 0,
SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2);
button_to_report = 0;
}
}
mutex_unlock(&es8326->lock);
}
static void es8326_jack_detect_handler(struct work_struct *work)
{
struct es8326_priv *es8326 =
container_of(work, struct es8326_priv, jack_detect_work.work);
struct snd_soc_component *comp = es8326->component;
unsigned int iface;
mutex_lock(&es8326->lock);
iface = snd_soc_component_read(comp, ES8326_HP_DETECT);
dev_dbg(comp->dev, "gpio flag %#04x", iface);
if ((iface & ES8326_HPINSERT_FLAG) == 0) {
/* Jack unplugged or spurious IRQ */
dev_dbg(comp->dev, "No headset detected");
if (es8326->jack->status & SND_JACK_HEADPHONE) {
snd_soc_jack_report(es8326->jack, 0, SND_JACK_HEADSET);
snd_soc_component_write(comp, ES8326_ADC1_SRC, es8326->mic2_src);
es8326_disable_micbias(comp);
}
} else if ((iface & ES8326_HPINSERT_FLAG) == ES8326_HPINSERT_FLAG) {
if (es8326->jack->status & SND_JACK_HEADSET) {
/* detect button */
queue_delayed_work(system_wq, &es8326->button_press_work, 10);
} else {
if ((iface & ES8326_HPBUTTON_FLAG) == 0x00) {
dev_dbg(comp->dev, "Headset detected");
snd_soc_jack_report(es8326->jack,
SND_JACK_HEADSET, SND_JACK_HEADSET);
snd_soc_component_write(comp,
ES8326_ADC1_SRC, es8326->mic1_src);
} else {
dev_dbg(comp->dev, "Headphone detected");
snd_soc_jack_report(es8326->jack,
SND_JACK_HEADPHONE, SND_JACK_HEADSET);
}
}
}
mutex_unlock(&es8326->lock);
}
static irqreturn_t es8326_irq(int irq, void *dev_id)
{
struct es8326_priv *es8326 = dev_id;
struct snd_soc_component *comp = es8326->component;
if (!es8326->jack)
goto out;
es8326_enable_micbias(comp);
if (es8326->jack->status & SND_JACK_HEADSET)
queue_delayed_work(system_wq, &es8326->jack_detect_work,
msecs_to_jiffies(10));
else
queue_delayed_work(system_wq, &es8326->jack_detect_work,
msecs_to_jiffies(300));
out:
return IRQ_HANDLED;
}
static int es8326_resume(struct snd_soc_component *component)
{
struct es8326_priv *es8326 = snd_soc_component_get_drvdata(component);
unsigned int reg;
regcache_cache_only(es8326->regmap, false);
regcache_sync(es8326->regmap);
regmap_write(es8326->regmap, ES8326_CLK_CTL, ES8326_CLK_ON);
/* Two channel ADC */
regmap_write(es8326->regmap, ES8326_PULLUP_CTL, 0x02);
regmap_write(es8326->regmap, ES8326_CLK_INV, 0x00);
regmap_write(es8326->regmap, ES8326_CLK_DIV_CPC, 0x1F);
regmap_write(es8326->regmap, ES8326_CLK_VMIDS1, 0xC8);
regmap_write(es8326->regmap, ES8326_CLK_VMIDS2, 0x88);
regmap_write(es8326->regmap, ES8326_CLK_CAL_TIME, 0x20);
regmap_write(es8326->regmap, ES8326_SYS_BIAS, 0x08);
regmap_write(es8326->regmap, ES8326_DAC2HPMIX, 0x22);
regmap_write(es8326->regmap, ES8326_ADC1_SRC, es8326->mic1_src);
regmap_write(es8326->regmap, ES8326_ADC2_SRC, es8326->mic2_src);
regmap_write(es8326->regmap, ES8326_HPJACK_TIMER, 0x88);
regmap_write(es8326->regmap, ES8326_HP_DET,
ES8326_HP_DET_SRC_PIN9 | es8326->jack_pol);
regmap_write(es8326->regmap, ES8326_INT_SOURCE, es8326->interrupt_src);
regmap_write(es8326->regmap, ES8326_INTOUT_IO, es8326->interrupt_clk);
regmap_write(es8326->regmap, ES8326_RESET, ES8326_CSM_ON);
snd_soc_component_update_bits(component, ES8326_PGAGAIN,
ES8326_MIC_SEL_MASK, ES8326_MIC1_SEL);
regmap_read(es8326->regmap, ES8326_CHIP_VERSION, ®);
if ((reg & ES8326_VERSION_B) == 1) {
regmap_write(es8326->regmap, ES8326_ANA_MICBIAS, 0xDD);
regmap_write(es8326->regmap, ES8326_ANA_VSEL, 0x7F);
regmap_write(es8326->regmap, ES8326_VMIDLOW, 0x0F);
/* enable button detect */
regmap_write(es8326->regmap, ES8326_HP_DRIVER, 0xA0);
}
es8326_irq(es8326->irq, es8326);
return 0;
}
static int es8326_suspend(struct snd_soc_component *component)
{
struct es8326_priv *es8326 = snd_soc_component_get_drvdata(component);
cancel_delayed_work_sync(&es8326->jack_detect_work);
es8326_disable_micbias(component);
regmap_write(es8326->regmap, ES8326_CLK_CTL, ES8326_CLK_OFF);
regcache_cache_only(es8326->regmap, true);
regcache_mark_dirty(es8326->regmap);
return 0;
}
static int es8326_probe(struct snd_soc_component *component)
{
struct es8326_priv *es8326 = snd_soc_component_get_drvdata(component);
int ret;
es8326->component = component;
es8326->jd_inverted = device_property_read_bool(component->dev,
"everest,jack-detect-inverted");
ret = device_property_read_u8(component->dev, "everest,mic1-src", &es8326->mic1_src);
if (ret != 0) {
dev_dbg(component->dev, "mic1-src return %d", ret);
es8326->mic1_src = ES8326_ADC_AMIC;
}
dev_dbg(component->dev, "mic1-src %x", es8326->mic1_src);
ret = device_property_read_u8(component->dev, "everest,mic2-src", &es8326->mic2_src);
if (ret != 0) {
dev_dbg(component->dev, "mic2-src return %d", ret);
es8326->mic2_src = ES8326_ADC_DMIC;
}
dev_dbg(component->dev, "mic2-src %x", es8326->mic2_src);
ret = device_property_read_u8(component->dev, "everest,jack-pol", &es8326->jack_pol);
if (ret != 0) {
dev_dbg(component->dev, "jack-pol return %d", ret);
es8326->jack_pol = ES8326_HP_DET_BUTTON_POL | ES8326_HP_TYPE_OMTP;
}
dev_dbg(component->dev, "jack-pol %x", es8326->jack_pol);
ret = device_property_read_u8(component->dev, "everest,interrupt-src",
&es8326->interrupt_src);
if (ret != 0) {
dev_dbg(component->dev, "interrupt-src return %d", ret);
es8326->interrupt_src = ES8326_HP_DET_SRC_PIN9;
}
dev_dbg(component->dev, "interrupt-src %x", es8326->interrupt_src);
ret = device_property_read_u8(component->dev, "everest,interrupt-clk",
&es8326->interrupt_clk);
if (ret != 0) {
dev_dbg(component->dev, "interrupt-clk return %d", ret);
es8326->interrupt_clk = 0x45;
}
dev_dbg(component->dev, "interrupt-clk %x", es8326->interrupt_clk);
es8326_resume(component);
return 0;
}
static void es8326_enable_jack_detect(struct snd_soc_component *component,
struct snd_soc_jack *jack)
{
struct es8326_priv *es8326 = snd_soc_component_get_drvdata(component);
mutex_lock(&es8326->lock);
if (es8326->jd_inverted)
snd_soc_component_update_bits(component, ES8326_HP_DET,
ES8326_HP_DET_JACK_POL, ~es8326->jack_pol);
es8326->jack = jack;
mutex_unlock(&es8326->lock);
es8326_irq(es8326->irq, es8326);
}
static void es8326_disable_jack_detect(struct snd_soc_component *component)
{
struct es8326_priv *es8326 = snd_soc_component_get_drvdata(component);
dev_dbg(component->dev, "Enter into %s\n", __func__);
if (!es8326->jack)
return; /* Already disabled (or never enabled) */
cancel_delayed_work_sync(&es8326->jack_detect_work);
mutex_lock(&es8326->lock);
if (es8326->jack->status & SND_JACK_MICROPHONE) {
es8326_disable_micbias(component);
snd_soc_jack_report(es8326->jack, 0, SND_JACK_HEADSET);
}
es8326->jack = NULL;
mutex_unlock(&es8326->lock);
}
static int es8326_set_jack(struct snd_soc_component *component,
struct snd_soc_jack *jack, void *data)
{
if (jack)
es8326_enable_jack_detect(component, jack);
else
es8326_disable_jack_detect(component);
return 0;
}
static void es8326_remove(struct snd_soc_component *component)
{
es8326_disable_jack_detect(component);
es8326_set_bias_level(component, SND_SOC_BIAS_OFF);
}
static const struct snd_soc_component_driver soc_component_dev_es8326 = {
.probe = es8326_probe,
.remove = es8326_remove,
.resume = es8326_resume,
.suspend = es8326_suspend,
.set_bias_level = es8326_set_bias_level,
.set_jack = es8326_set_jack,
.dapm_widgets = es8326_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(es8326_dapm_widgets),
.dapm_routes = es8326_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(es8326_dapm_routes),
.controls = es8326_snd_controls,
.num_controls = ARRAY_SIZE(es8326_snd_controls),
.use_pmdown_time = 1,
.endianness = 1,
};
static int es8326_i2c_probe(struct i2c_client *i2c)
{
struct es8326_priv *es8326;
int ret;
es8326 = devm_kzalloc(&i2c->dev, sizeof(struct es8326_priv), GFP_KERNEL);
if (!es8326)
return -ENOMEM;
i2c_set_clientdata(i2c, es8326);
es8326->i2c = i2c;
mutex_init(&es8326->lock);
es8326->regmap = devm_regmap_init_i2c(i2c, &es8326_regmap_config);
if (IS_ERR(es8326->regmap)) {
ret = PTR_ERR(es8326->regmap);
dev_err(&i2c->dev, "Failed to init regmap: %d\n", ret);
return ret;
}
es8326->irq = i2c->irq;
INIT_DELAYED_WORK(&es8326->jack_detect_work,
es8326_jack_detect_handler);
INIT_DELAYED_WORK(&es8326->button_press_work,
es8326_jack_button_handler);
/* ES8316 is level-based while ES8326 is edge-based */
ret = devm_request_threaded_irq(&i2c->dev, es8326->irq, NULL, es8326_irq,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
"es8326", es8326);
if (ret) {
dev_warn(&i2c->dev, "Failed to request IRQ: %d: %d\n",
es8326->irq, ret);
es8326->irq = -ENXIO;
}
es8326->mclk = devm_clk_get_optional(&i2c->dev, "mclk");
if (IS_ERR(es8326->mclk)) {
dev_err(&i2c->dev, "unable to get mclk\n");
return PTR_ERR(es8326->mclk);
}
if (!es8326->mclk)
dev_warn(&i2c->dev, "assuming static mclk\n");
ret = clk_prepare_enable(es8326->mclk);
if (ret) {
dev_err(&i2c->dev, "unable to enable mclk\n");
return ret;
}
return devm_snd_soc_register_component(&i2c->dev,
&soc_component_dev_es8326,
&es8326_dai, 1);
}
static const struct i2c_device_id es8326_i2c_id[] = {
{"es8326", 0 },
{}
};
MODULE_DEVICE_TABLE(i2c, es8326_i2c_id);
#ifdef CONFIG_OF
static const struct of_device_id es8326_of_match[] = {
{ .compatible = "everest,es8326", },
{}
};
MODULE_DEVICE_TABLE(of, es8326_of_match);
#endif
#ifdef CONFIG_ACPI
static const struct acpi_device_id es8326_acpi_match[] = {
{"ESSX8326", 0},
{},
};
MODULE_DEVICE_TABLE(acpi, es8326_acpi_match);
#endif
static struct i2c_driver es8326_i2c_driver = {
.driver = {
.name = "es8326",
.acpi_match_table = ACPI_PTR(es8326_acpi_match),
.of_match_table = of_match_ptr(es8326_of_match),
},
.probe_new = es8326_i2c_probe,
.id_table = es8326_i2c_id,
};
module_i2c_driver(es8326_i2c_driver);
MODULE_DESCRIPTION("ASoC es8326 driver");
MODULE_AUTHOR("David Yang <yangxiaohua@everest-semi.com>");
MODULE_LICENSE("GPL");
