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Diffstat (limited to 'sound/soc/codecs/es8326.c')
-rwxr-xr-xsound/soc/codecs/es8326.c905
1 files changed, 905 insertions, 0 deletions
diff --git a/sound/soc/codecs/es8326.c b/sound/soc/codecs/es8326.c
new file mode 100755
index 000000000000..87c1cc16592b
--- /dev/null
+++ b/sound/soc/codecs/es8326.c
@@ -0,0 +1,905 @@
+// 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, &reg);
+ 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->jack_pol);
+ 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->jack_pol);
+ 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,
+ const struct i2c_device_id *id)
+{
+ 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 = 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");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.