diff options
Diffstat (limited to 'sound/soc/codecs/max98388.c')
| -rw-r--r-- | sound/soc/codecs/max98388.c | 1013 |
1 files changed, 1013 insertions, 0 deletions
diff --git a/sound/soc/codecs/max98388.c b/sound/soc/codecs/max98388.c new file mode 100644 index 0000000000..cde5e85946 --- /dev/null +++ b/sound/soc/codecs/max98388.c @@ -0,0 +1,1013 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2022, Analog Devices Inc. + +#include <linux/acpi.h> +#include <linux/delay.h> +#include <linux/gpio.h> +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/mod_devicetable.h> +#include <linux/of.h> +#include <linux/of_gpio.h> +#include <linux/pm_runtime.h> +#include <linux/regmap.h> +#include <linux/slab.h> +#include <linux/cdev.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/tlv.h> +#include "max98388.h" + +static struct reg_default max98388_reg[] = { + {MAX98388_R2000_SW_RESET, 0x00}, + {MAX98388_R2001_INT_RAW1, 0x00}, + {MAX98388_R2002_INT_RAW2, 0x00}, + {MAX98388_R2004_INT_STATE1, 0x00}, + {MAX98388_R2005_INT_STATE2, 0x00}, + {MAX98388_R2020_THERM_WARN_THRESH, 0x0A}, + {MAX98388_R2031_SPK_MON_THRESH, 0x58}, + {MAX98388_R2032_SPK_MON_LD_SEL, 0x08}, + {MAX98388_R2033_SPK_MON_DURATION, 0x02}, + {MAX98388_R2037_ERR_MON_CTRL, 0x01}, + {MAX98388_R2040_PCM_MODE_CFG, 0xC0}, + {MAX98388_R2041_PCM_CLK_SETUP, 0x04}, + {MAX98388_R2042_PCM_SR_SETUP, 0x88}, + {MAX98388_R2044_PCM_TX_CTRL1, 0x00}, + {MAX98388_R2045_PCM_TX_CTRL2, 0x00}, + {MAX98388_R2050_PCM_TX_HIZ_CTRL1, 0xFF}, + {MAX98388_R2051_PCM_TX_HIZ_CTRL2, 0xFF}, + {MAX98388_R2052_PCM_TX_HIZ_CTRL3, 0xFF}, + {MAX98388_R2053_PCM_TX_HIZ_CTRL4, 0xFF}, + {MAX98388_R2054_PCM_TX_HIZ_CTRL5, 0xFF}, + {MAX98388_R2055_PCM_TX_HIZ_CTRL6, 0xFF}, + {MAX98388_R2056_PCM_TX_HIZ_CTRL7, 0xFF}, + {MAX98388_R2057_PCM_TX_HIZ_CTRL8, 0xFF}, + {MAX98388_R2058_PCM_RX_SRC1, 0x00}, + {MAX98388_R2059_PCM_RX_SRC2, 0x01}, + {MAX98388_R205C_PCM_TX_DRIVE_STRENGTH, 0x00}, + {MAX98388_R205D_PCM_TX_SRC_EN, 0x00}, + {MAX98388_R205E_PCM_RX_EN, 0x00}, + {MAX98388_R205F_PCM_TX_EN, 0x00}, + {MAX98388_R2090_SPK_CH_VOL_CTRL, 0x00}, + {MAX98388_R2091_SPK_CH_CFG, 0x02}, + {MAX98388_R2092_SPK_AMP_OUT_CFG, 0x03}, + {MAX98388_R2093_SPK_AMP_SSM_CFG, 0x01}, + {MAX98388_R2094_SPK_AMP_ER_CTRL, 0x00}, + {MAX98388_R209E_SPK_CH_PINK_NOISE_EN, 0x00}, + {MAX98388_R209F_SPK_CH_AMP_EN, 0x00}, + {MAX98388_R20A0_IV_DATA_DSP_CTRL, 0x10}, + {MAX98388_R20A7_IV_DATA_EN, 0x00}, + {MAX98388_R20E0_BP_ALC_THRESH, 0x04}, + {MAX98388_R20E1_BP_ALC_RATES, 0x20}, + {MAX98388_R20E2_BP_ALC_ATTEN, 0x06}, + {MAX98388_R20E3_BP_ALC_REL, 0x02}, + {MAX98388_R20E4_BP_ALC_MUTE, 0x33}, + {MAX98388_R20EE_BP_INF_HOLD_REL, 0x00}, + {MAX98388_R20EF_BP_ALC_EN, 0x00}, + {MAX98388_R210E_AUTO_RESTART, 0x00}, + {MAX98388_R210F_GLOBAL_EN, 0x00}, + {MAX98388_R22FF_REV_ID, 0x00}, +}; + +static int max98388_dac_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); + struct max98388_priv *max98388 = snd_soc_component_get_drvdata(component); + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + regmap_write(max98388->regmap, + MAX98388_R210F_GLOBAL_EN, 1); + usleep_range(30000, 31000); + break; + case SND_SOC_DAPM_PRE_PMD: + regmap_write(max98388->regmap, + MAX98388_R210F_GLOBAL_EN, 0); + usleep_range(30000, 31000); + max98388->tdm_mode = false; + break; + default: + return 0; + } + return 0; +} + +static const char * const max98388_monomix_switch_text[] = { + "Left", "Right", "LeftRight"}; + +static const struct soc_enum dai_sel_enum = + SOC_ENUM_SINGLE(MAX98388_R2058_PCM_RX_SRC1, + MAX98388_PCM_TO_SPK_MONOMIX_CFG_SHIFT, + 3, max98388_monomix_switch_text); + +static const struct snd_kcontrol_new max98388_dai_controls = + SOC_DAPM_ENUM("DAI Sel", dai_sel_enum); + +static const struct snd_kcontrol_new max98388_vi_control = + SOC_DAPM_SINGLE("Switch", MAX98388_R205F_PCM_TX_EN, 0, 1, 0); + +static const struct snd_soc_dapm_widget max98388_dapm_widgets[] = { + SND_SOC_DAPM_DAC_E("Amp Enable", "HiFi Playback", + MAX98388_R205E_PCM_RX_EN, 0, 0, max98388_dac_event, + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), + SND_SOC_DAPM_MUX("DAI Sel Mux", SND_SOC_NOPM, 0, 0, + &max98388_dai_controls), + SND_SOC_DAPM_OUTPUT("BE_OUT"), + SND_SOC_DAPM_AIF_OUT("Voltage Sense", "HiFi Capture", 0, + MAX98388_R20A7_IV_DATA_EN, 0, 0), + SND_SOC_DAPM_AIF_OUT("Current Sense", "HiFi Capture", 0, + MAX98388_R20A7_IV_DATA_EN, 1, 0), + SND_SOC_DAPM_ADC("ADC Voltage", NULL, + MAX98388_R205D_PCM_TX_SRC_EN, 0, 0), + SND_SOC_DAPM_ADC("ADC Current", NULL, + MAX98388_R205D_PCM_TX_SRC_EN, 1, 0), + SND_SOC_DAPM_SWITCH("VI Sense", SND_SOC_NOPM, 0, 0, + &max98388_vi_control), + SND_SOC_DAPM_SIGGEN("VMON"), + SND_SOC_DAPM_SIGGEN("IMON"), +}; + +static DECLARE_TLV_DB_SCALE(max98388_digital_tlv, -6350, 50, 1); +static DECLARE_TLV_DB_SCALE(max98388_amp_gain_tlv, -300, 300, 0); + +static const char * const max98388_alc_max_atten_text[] = { + "0dBFS", "-1dBFS", "-2dBFS", "-3dBFS", "-4dBFS", "-5dBFS", + "-6dBFS", "-7dBFS", "-8dBFS", "-9dBFS", "-10dBFS", "-11dBFS", + "-12dBFS", "-13dBFS", "-14dBFS", "-15dBFS" +}; + +static SOC_ENUM_SINGLE_DECL(max98388_alc_max_atten_enum, + MAX98388_R20E2_BP_ALC_ATTEN, + MAX98388_ALC_MAX_ATTEN_SHIFT, + max98388_alc_max_atten_text); + +static const char * const max98388_thermal_warn_text[] = { + "95C", "105C", "115C", "125C" +}; + +static SOC_ENUM_SINGLE_DECL(max98388_thermal_warning_thresh_enum, + MAX98388_R2020_THERM_WARN_THRESH, + MAX98388_THERM_WARN_THRESH_SHIFT, + max98388_thermal_warn_text); + +static const char * const max98388_thermal_shutdown_text[] = { + "135C", "145C", "155C", "165C" +}; + +static SOC_ENUM_SINGLE_DECL(max98388_thermal_shutdown_thresh_enum, + MAX98388_R2020_THERM_WARN_THRESH, + MAX98388_THERM_SHDN_THRESH_SHIFT, + max98388_thermal_shutdown_text); + +static const char * const max98388_alc_thresh_single_text[] = { + "3.625V", "3.550V", "3.475V", "3.400V", "3.325V", "3.250V", + "3.175V", "3.100V", "3.025V", "2.950V", "2.875V", "2.800V", + "2.725V", "2.650V", "2.575V", "2.500V" +}; + +static SOC_ENUM_SINGLE_DECL(max98388_alc_thresh_single_enum, + MAX98388_R20E0_BP_ALC_THRESH, + MAX98388_ALC_THRESH_SHIFT, + max98388_alc_thresh_single_text); + +static const char * const max98388_alc_attack_rate_text[] = { + "0", "10us", "20us", "40us", "80us", "160us", + "320us", "640us", "1.28ms", "2.56ms", "5.12ms", "10.24ms", + "20.48ms", "40.96ms", "81.92ms", "163.84ms" +}; + +static SOC_ENUM_SINGLE_DECL(max98388_alc_attack_rate_enum, + MAX98388_R20E1_BP_ALC_RATES, + MAX98388_ALC_ATTACK_RATE_SHIFT, + max98388_alc_attack_rate_text); + +static const char * const max98388_alc_release_rate_text[] = { + "20us", "40us", "80us", "160us", "320us", "640us", + "1.28ms", "2.56ms", "5.12ms", "10.24ms", "20.48ms", "40.96ms", + "81.92ms", "163.84ms", "327.68ms", "655.36ms" +}; + +static SOC_ENUM_SINGLE_DECL(max98388_alc_release_rate_enum, + MAX98388_R20E1_BP_ALC_RATES, + MAX98388_ALC_RELEASE_RATE_SHIFT, + max98388_alc_release_rate_text); + +static const char * const max98388_alc_debounce_text[] = { + "0.01ms", "0.1ms", "1ms", "10ms", "100ms", "250ms", "500ms", "hold" +}; + +static SOC_ENUM_SINGLE_DECL(max98388_alc_debouce_enum, + MAX98388_R20E3_BP_ALC_REL, + MAX98388_ALC_DEBOUNCE_TIME_SHIFT, + max98388_alc_debounce_text); + +static const char * const max98388_alc_mute_delay_text[] = { + "0.01ms", "0.05ms", "0.1ms", "0.5ms", "1ms", "5ms", "25ms", "250ms" +}; + +static SOC_ENUM_SINGLE_DECL(max98388_alc_mute_delay_enum, + MAX98388_R20E4_BP_ALC_MUTE, + MAX98388_ALC_MUTE_DELAY_SHIFT, + max98388_alc_mute_delay_text); + +static const char * const max98388_spkmon_duration_text[] = { + "10ms", "25ms", "50ms", "75ms", "100ms", "200ms", "300ms", "400ms", + "500ms", "600ms", "700ms", "800ms", "900ms", "1000ms", "1100ms", "1200ms" +}; + +static SOC_ENUM_SINGLE_DECL(max98388_spkmon_duration_enum, + MAX98388_R2033_SPK_MON_DURATION, + MAX98388_SPKMON_DURATION_SHIFT, + max98388_spkmon_duration_text); + +static const char * const max98388_spkmon_thresh_text[] = { + "0.03V", "0.06V", "0.09V", "0.12V", "0.15V", "0.18V", "0.20V", "0.23V", + "0.26V", "0.29V", "0.32V", "0.35V", "0.38V", "0.41V", "0.44V", "0.47V", + "0.50V", "0.53V", "0.56V", "0.58V", "0.61V", "0.64V", "0.67V", "0.70V", + "0.73V", "0.76V", "0.79V", "0.82V", "0.85V", "0.88V", "0.91V", "0.94V", + "0.96V", "0.99V", "1.02V", "1.05V", "1.08V", "1.11V", "1.14V", "1.17V", + "1.20V", "1.23V", "1.26V", "1.29V", "1.32V", "1.35V", "1.37V", "1.40V", + "1.43V", "1.46V", "1.49V", "1.52V", "1.55V", "1.58V", "1.61V", "1.64V", + "1.67V", "1.70V", "1.73V", "1.75V", "1.78V", "1.81V", "1.84V", "1.87V", + "1.90V", "1.93V", "1.96V", "1.99V", "2.02V", "2.05V", "2.08V", "2.11V", + "2.13V", "2.16V", "2.19V", "2.22V", "2.25V", "2.28V", "2.31V", "2.34V", + "2.37V", "2.40V", "2.43V", "2.46V", "2.49V", "2.51V", "2.54V", "2.57V", + "2.60V", "2.63V", "2.66V", "2.69V", "2.72V", "2.75V", "2.78V", "2.81V", + "2.84V", "2.87V", "2.89V", "2.92V", "2.95V", "2.98V", "3.01V", "3.04V", + "3.07V", "3.10V", "3.13V", "3.16V", "3.19V", "3.22V", "3.25V", "3.27V", + "3.30V", "3.33V", "3.36V", "3.39V", "3.42V", "3.45V", "3.48V", "3.51V", + "3.54V", "3.57V", "3.60V", "3.63V", "3.66V", "3.68V", "3.71V", "3.74V" +}; + +static SOC_ENUM_SINGLE_DECL(max98388_spkmon_thresh_enum, + MAX98388_R2031_SPK_MON_THRESH, + MAX98388_SPKMON_THRESH_SHIFT, + max98388_spkmon_thresh_text); + +static const char * const max98388_spkmon_load_text[] = { + "2.00ohm", "2.25ohm", "2.50ohm", "2.75ohm", "3.00ohm", "3.25ohm", + "3.50ohm", "3.75ohm", "4.00ohm", "4.25ohm", "4.50ohm", "4.75ohm", + "5.00ohm", "5.25ohm", "5.50ohm", "5.75ohm", "6.00ohm", "6.25ohm", + "6.50ohm", "6.75ohm", "7.00ohm", "7.25ohm", "7.50ohm", "7.75ohm", + "8.00ohm", "8.25ohm", "8.50ohm", "8.75ohm", "9.00ohm", "9.25ohm", + "9.50ohm", "9.75ohm", "10.00ohm", "10.25ohm", "10.50ohm", "10.75ohm", + "11.00ohm", "11.25ohm", "11.50ohm", "11.75ohm", "12.00ohm", "12.25ohm", + "12.50ohm", "12.75ohm", "13.00ohm", "13.25ohm", "13.50ohm", "13.75ohm", + "14.00ohm", "14.25ohm", "14.50ohm", "14.75ohm", "15.00ohm", "15.25ohm", + "15.50ohm", "15.75ohm", "16.00ohm", "16.25ohm", "16.50ohm", "16.75ohm", + "17.00ohm", "17.25ohm", "17.50ohm", "17.75ohm", "18.00ohm", "18.25ohm", + "18.50ohm", "18.75ohm", "19.00ohm", "19.25ohm", "19.50ohm", "19.75ohm", + "20.00ohm", "20.25ohm", "20.50ohm", "20.75ohm", "21.00ohm", "21.25ohm", + "21.50ohm", "21.75ohm", "22.00ohm", "22.25ohm", "22.50ohm", "22.75ohm", + "23.00ohm", "23.25ohm", "23.50ohm", "23.75ohm", "24.00ohm", "24.25ohm", + "24.50ohm", "24.75ohm", "25.00ohm", "25.25ohm", "25.50ohm", "25.75ohm", + "26.00ohm", "26.25ohm", "26.50ohm", "26.75ohm", "27.00ohm", "27.25ohm", + "27.50ohm", "27.75ohm", "28.00ohm", "28.25ohm", "28.50ohm", "28.75ohm", + "29.00ohm", "29.25ohm", "29.50ohm", "29.75ohm", "30.00ohm", "30.25ohm", + "30.50ohm", "30.75ohm", "31.00ohm", "31.25ohm", "31.50ohm", "31.75ohm", + "32.00ohm", "32.25ohm", "32.50ohm", "32.75ohm", "33.00ohm", "33.25ohm", + "33.50ohm", "33.75ohm" +}; + +static SOC_ENUM_SINGLE_DECL(max98388_spkmon_load_enum, + MAX98388_R2032_SPK_MON_LD_SEL, + MAX98388_SPKMON_LOAD_SHIFT, + max98388_spkmon_load_text); + +static const char * const max98388_edge_rate_text[] = { + "Normal", "Reduced", "Maximum", "Increased", +}; + +static SOC_ENUM_SINGLE_DECL(max98388_edge_rate_falling_enum, + MAX98388_R2094_SPK_AMP_ER_CTRL, + MAX98388_EDGE_RATE_FALL_SHIFT, + max98388_edge_rate_text); + +static SOC_ENUM_SINGLE_DECL(max98388_edge_rate_rising_enum, + MAX98388_R2094_SPK_AMP_ER_CTRL, + MAX98388_EDGE_RATE_RISE_SHIFT, + max98388_edge_rate_text); + +static const char * const max98388_ssm_mod_text[] = { + "1.5%", "3.0%", "4.5%", "6.0%", +}; + +static SOC_ENUM_SINGLE_DECL(max98388_ssm_mod_enum, + MAX98388_R2093_SPK_AMP_SSM_CFG, + MAX98388_SPK_AMP_SSM_MOD_SHIFT, + max98388_ssm_mod_text); + +static const struct snd_kcontrol_new max98388_snd_controls[] = { + SOC_SINGLE("Ramp Up Switch", MAX98388_R2091_SPK_CH_CFG, + MAX98388_SPK_CFG_VOL_RMPUP_SHIFT, 1, 0), + SOC_SINGLE("Ramp Down Switch", MAX98388_R2091_SPK_CH_CFG, + MAX98388_SPK_CFG_VOL_RMPDN_SHIFT, 1, 0), + /* Two Cell Mode Enable */ + SOC_SINGLE("OP Mode Switch", MAX98388_R2092_SPK_AMP_OUT_CFG, + MAX98388_SPK_AMP_OUT_MODE_SHIFT, 1, 0), + /* Speaker Amplifier Overcurrent Automatic Restart Enable */ + SOC_SINGLE("OVC Autorestart Switch", MAX98388_R210E_AUTO_RESTART, + MAX98388_OVC_AUTORESTART_SHIFT, 1, 0), + /* Thermal Shutdown Automatic Restart Enable */ + SOC_SINGLE("THERM Autorestart Switch", MAX98388_R210E_AUTO_RESTART, + MAX98388_THERM_AUTORESTART_SHIFT, 1, 0), + /* PVDD UVLO Auto Restart */ + SOC_SINGLE("UVLO Autorestart Switch", MAX98388_R210E_AUTO_RESTART, + MAX98388_PVDD_UVLO_AUTORESTART_SHIFT, 1, 0), + /* Clock Monitor Automatic Restart Enable */ + SOC_SINGLE("CMON Autorestart Switch", MAX98388_R210E_AUTO_RESTART, + MAX98388_CMON_AUTORESTART_SHIFT, 1, 0), + SOC_SINGLE("CLK Monitor Switch", MAX98388_R2037_ERR_MON_CTRL, + MAX98388_CLOCK_MON_SHIFT, 1, 0), + /* Pinknoise Generator Enable */ + SOC_SINGLE("Pinknoise Gen Switch", MAX98388_R209E_SPK_CH_PINK_NOISE_EN, + MAX98388_PINK_NOISE_GEN_SHIFT, 1, 0), + /* Dither Enable */ + SOC_SINGLE("Dither Switch", MAX98388_R2091_SPK_CH_CFG, + MAX98388_SPK_CFG_DITH_EN_SHIFT, 1, 0), + SOC_SINGLE("VI Dither Switch", MAX98388_R20A0_IV_DATA_DSP_CTRL, + MAX98388_AMP_DSP_CTRL_DITH_SHIFT, 1, 0), + /* DC Blocker Enable */ + SOC_SINGLE("DC Blocker Switch", MAX98388_R2091_SPK_CH_CFG, + MAX98388_SPK_CFG_DCBLK_SHIFT, 1, 0), + SOC_SINGLE("Voltage DC Blocker Switch", MAX98388_R20A0_IV_DATA_DSP_CTRL, + MAX98388_AMP_DSP_CTRL_VOL_DCBLK_SHIFT, 1, 0), + SOC_SINGLE("Current DC Blocker Switch", MAX98388_R20A0_IV_DATA_DSP_CTRL, + MAX98388_AMP_DSP_CTRL_CUR_DCBLK_SHIFT, 1, 0), + /* Digital Volume */ + SOC_SINGLE_TLV("Digital Volume", MAX98388_R2090_SPK_CH_VOL_CTRL, + 0, 0x7F, 1, max98388_digital_tlv), + /* Speaker Volume */ + SOC_SINGLE_TLV("Speaker Volume", MAX98388_R2092_SPK_AMP_OUT_CFG, + 0, 5, 0, max98388_amp_gain_tlv), + SOC_ENUM("Thermal Warn Thresh", max98388_thermal_warning_thresh_enum), + SOC_ENUM("Thermal SHDN Thresh", max98388_thermal_shutdown_thresh_enum), + /* Brownout Protection Automatic Level Control */ + SOC_SINGLE("ALC Switch", MAX98388_R20EF_BP_ALC_EN, 0, 1, 0), + SOC_ENUM("ALC Thresh", max98388_alc_thresh_single_enum), + SOC_ENUM("ALC Attack Rate", max98388_alc_attack_rate_enum), + SOC_ENUM("ALC Release Rate", max98388_alc_release_rate_enum), + SOC_ENUM("ALC Max Atten", max98388_alc_max_atten_enum), + SOC_ENUM("ALC Debounce Time", max98388_alc_debouce_enum), + SOC_SINGLE("ALC Unmute Ramp Switch", MAX98388_R20E4_BP_ALC_MUTE, + MAX98388_ALC_UNMUTE_RAMP_EN_SHIFT, 1, 0), + SOC_SINGLE("ALC Mute Ramp Switch", MAX98388_R20E4_BP_ALC_MUTE, + MAX98388_ALC_MUTE_RAMP_EN_SHIFT, 1, 0), + SOC_SINGLE("ALC Mute Switch", MAX98388_R20E4_BP_ALC_MUTE, + MAX98388_ALC_MUTE_EN_SHIFT, 1, 0), + SOC_ENUM("ALC Mute Delay", max98388_alc_mute_delay_enum), + /* Speaker Monitor */ + SOC_SINGLE("SPKMON Switch", MAX98388_R2037_ERR_MON_CTRL, + MAX98388_SPK_MON_SHIFT, 1, 0), + SOC_ENUM("SPKMON Thresh", max98388_spkmon_thresh_enum), + SOC_ENUM("SPKMON Load", max98388_spkmon_load_enum), + SOC_ENUM("SPKMON Duration", max98388_spkmon_duration_enum), + /* General Parameters */ + SOC_ENUM("Fall Slew Rate", max98388_edge_rate_falling_enum), + SOC_ENUM("Rise Slew Rate", max98388_edge_rate_rising_enum), + SOC_SINGLE("AMP SSM Switch", MAX98388_R2093_SPK_AMP_SSM_CFG, + MAX98388_SPK_AMP_SSM_EN_SHIFT, 1, 0), + SOC_ENUM("AMP SSM Mod", max98388_ssm_mod_enum), +}; + +static const struct snd_soc_dapm_route max98388_audio_map[] = { + /* Plabyack */ + {"DAI Sel Mux", "Left", "Amp Enable"}, + {"DAI Sel Mux", "Right", "Amp Enable"}, + {"DAI Sel Mux", "LeftRight", "Amp Enable"}, + {"BE_OUT", NULL, "DAI Sel Mux"}, + /* Capture */ + { "ADC Voltage", NULL, "VMON"}, + { "ADC Current", NULL, "IMON"}, + { "VI Sense", "Switch", "ADC Voltage"}, + { "VI Sense", "Switch", "ADC Current"}, + { "Voltage Sense", NULL, "VI Sense"}, + { "Current Sense", NULL, "VI Sense"}, +}; + +static void max98388_reset(struct max98388_priv *max98388, struct device *dev) +{ + int ret, reg, count; + + /* Software Reset */ + ret = regmap_update_bits(max98388->regmap, + MAX98388_R2000_SW_RESET, + MAX98388_SOFT_RESET, + MAX98388_SOFT_RESET); + if (ret) + dev_err(dev, "Reset command failed. (ret:%d)\n", ret); + + count = 0; + while (count < 3) { + usleep_range(10000, 11000); + /* Software Reset Verification */ + ret = regmap_read(max98388->regmap, + MAX98388_R22FF_REV_ID, ®); + if (!ret) { + dev_info(dev, "Reset completed (retry:%d)\n", count); + return; + } + count++; + } + dev_err(dev, "Reset failed. (ret:%d)\n", ret); +} + +static int max98388_probe(struct snd_soc_component *component) +{ + struct max98388_priv *max98388 = snd_soc_component_get_drvdata(component); + + /* Software Reset */ + max98388_reset(max98388, component->dev); + + /* General channel source configuration */ + regmap_write(max98388->regmap, + MAX98388_R2059_PCM_RX_SRC2, + 0x10); + + /* Enable DC blocker */ + regmap_write(max98388->regmap, + MAX98388_R2091_SPK_CH_CFG, + 0x1); + /* Enable IMON VMON DC blocker */ + regmap_write(max98388->regmap, + MAX98388_R20A0_IV_DATA_DSP_CTRL, + 0x3); + /* TX slot configuration */ + regmap_write(max98388->regmap, + MAX98388_R2044_PCM_TX_CTRL1, + max98388->v_slot); + + regmap_write(max98388->regmap, + MAX98388_R2045_PCM_TX_CTRL2, + max98388->i_slot); + /* Enable Auto-restart behavior by default */ + regmap_write(max98388->regmap, + MAX98388_R210E_AUTO_RESTART, 0xF); + /* Set interleave mode */ + if (max98388->interleave_mode) + regmap_update_bits(max98388->regmap, + MAX98388_R2040_PCM_MODE_CFG, + MAX98388_PCM_TX_CH_INTERLEAVE_MASK, + MAX98388_PCM_TX_CH_INTERLEAVE_MASK); + + /* Speaker Amplifier Channel Enable */ + regmap_update_bits(max98388->regmap, + MAX98388_R209F_SPK_CH_AMP_EN, + MAX98388_SPK_EN_MASK, 1); + + return 0; +} + +static int max98388_dai_set_fmt(struct snd_soc_dai *codec_dai, + unsigned int fmt) +{ + struct snd_soc_component *component = codec_dai->component; + struct max98388_priv *max98388 = snd_soc_component_get_drvdata(component); + unsigned int format = 0; + unsigned int invert = 0; + + dev_dbg(component->dev, "%s: fmt 0x%08X\n", __func__, fmt); + + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + case SND_SOC_DAIFMT_IB_NF: + invert = MAX98388_PCM_MODE_CFG_PCM_BCLKEDGE; + break; + default: + dev_err(component->dev, "DAI invert mode unsupported\n"); + return -EINVAL; + } + + regmap_update_bits(max98388->regmap, + MAX98388_R2041_PCM_CLK_SETUP, + MAX98388_PCM_MODE_CFG_PCM_BCLKEDGE, + invert); + + /* interface format */ + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + format = MAX98388_PCM_FORMAT_I2S; + break; + case SND_SOC_DAIFMT_LEFT_J: + format = MAX98388_PCM_FORMAT_LJ; + break; + case SND_SOC_DAIFMT_DSP_A: + format = MAX98388_PCM_FORMAT_TDM_MODE1; + break; + case SND_SOC_DAIFMT_DSP_B: + format = MAX98388_PCM_FORMAT_TDM_MODE0; + break; + default: + return -EINVAL; + } + + regmap_update_bits(max98388->regmap, + MAX98388_R2040_PCM_MODE_CFG, + MAX98388_PCM_MODE_CFG_FORMAT_MASK, + format << MAX98388_PCM_MODE_CFG_FORMAT_SHIFT); + + return 0; +} + +/* BCLKs per LRCLK */ +static const int bclk_sel_table[] = { + 32, 48, 64, 96, 128, 192, 256, 384, 512, 320, +}; + +static int max98388_get_bclk_sel(int bclk) +{ + int i; + /* match BCLKs per LRCLK */ + for (i = 0; i < ARRAY_SIZE(bclk_sel_table); i++) { + if (bclk_sel_table[i] == bclk) + return i + 2; + } + return 0; +} + +static int max98388_set_clock(struct snd_soc_component *component, + struct snd_pcm_hw_params *params) +{ + struct max98388_priv *max98388 = snd_soc_component_get_drvdata(component); + /* BCLK/LRCLK ratio calculation */ + int blr_clk_ratio = params_channels(params) * max98388->ch_size; + int value; + + if (!max98388->tdm_mode) { + /* BCLK configuration */ + value = max98388_get_bclk_sel(blr_clk_ratio); + if (!value) { + dev_err(component->dev, "format unsupported %d\n", + params_format(params)); + return -EINVAL; + } + + regmap_update_bits(max98388->regmap, + MAX98388_R2041_PCM_CLK_SETUP, + MAX98388_PCM_CLK_SETUP_BSEL_MASK, + value); + } + return 0; +} + +static int max98388_dai_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 max98388_priv *max98388 = snd_soc_component_get_drvdata(component); + unsigned int sampling_rate = 0; + unsigned int chan_sz = 0; + int ret, reg; + int status = 0; + + /* pcm mode configuration */ + switch (snd_pcm_format_width(params_format(params))) { + case 16: + chan_sz = MAX98388_PCM_MODE_CFG_CHANSZ_16; + break; + case 24: + chan_sz = MAX98388_PCM_MODE_CFG_CHANSZ_24; + break; + case 32: + chan_sz = MAX98388_PCM_MODE_CFG_CHANSZ_32; + break; + default: + dev_err(component->dev, "format unsupported %d\n", + params_format(params)); + goto err; + } + + max98388->ch_size = snd_pcm_format_width(params_format(params)); + + ret = regmap_read(max98388->regmap, + MAX98388_R2040_PCM_MODE_CFG, ®); + if (ret < 0) + goto err; + + /* GLOBAL_EN OFF prior to the channel size re-configure */ + if (chan_sz != (reg & MAX98388_PCM_MODE_CFG_CHANSZ_MASK)) { + ret = regmap_read(max98388->regmap, + MAX98388_R210F_GLOBAL_EN, &status); + if (ret < 0) + goto err; + + if (status) { + regmap_write(max98388->regmap, + MAX98388_R210F_GLOBAL_EN, 0); + usleep_range(30000, 31000); + } + regmap_update_bits(max98388->regmap, + MAX98388_R2040_PCM_MODE_CFG, + MAX98388_PCM_MODE_CFG_CHANSZ_MASK, chan_sz); + } + dev_dbg(component->dev, "format supported %d", + params_format(params)); + + /* sampling rate configuration */ + switch (params_rate(params)) { + case 8000: + sampling_rate = MAX98388_PCM_SR_8000; + break; + case 11025: + sampling_rate = MAX98388_PCM_SR_11025; + break; + case 12000: + sampling_rate = MAX98388_PCM_SR_12000; + break; + case 16000: + sampling_rate = MAX98388_PCM_SR_16000; + break; + case 22050: + sampling_rate = MAX98388_PCM_SR_22050; + break; + case 24000: + sampling_rate = MAX98388_PCM_SR_24000; + break; + case 32000: + sampling_rate = MAX98388_PCM_SR_32000; + break; + case 44100: + sampling_rate = MAX98388_PCM_SR_44100; + break; + case 48000: + sampling_rate = MAX98388_PCM_SR_48000; + break; + case 88200: + sampling_rate = MAX98388_PCM_SR_88200; + break; + case 96000: + sampling_rate = MAX98388_PCM_SR_96000; + break; + default: + dev_err(component->dev, "rate %d not supported\n", + params_rate(params)); + goto err; + } + + /* set DAI_SR to correct LRCLK frequency */ + regmap_update_bits(max98388->regmap, + MAX98388_R2042_PCM_SR_SETUP, + MAX98388_PCM_SR_MASK, + sampling_rate); + + /* set sampling rate of IV */ + if (max98388->interleave_mode && + sampling_rate > MAX98388_PCM_SR_16000) + regmap_update_bits(max98388->regmap, + MAX98388_R2042_PCM_SR_SETUP, + MAX98388_PCM_SR_IV_MASK, + (sampling_rate - 3) << MAX98388_PCM_SR_IV_SHIFT); + else + regmap_update_bits(max98388->regmap, + MAX98388_R2042_PCM_SR_SETUP, + MAX98388_PCM_SR_IV_MASK, + sampling_rate << MAX98388_PCM_SR_IV_SHIFT); + + ret = max98388_set_clock(component, params); + + if (status) { + regmap_write(max98388->regmap, + MAX98388_R210F_GLOBAL_EN, 1); + usleep_range(30000, 31000); + } + + return ret; + +err: + return -EINVAL; +} + +#define MAX_NUM_SLOTS 16 +#define MAX_NUM_CH 2 + +static int max98388_dai_tdm_slot(struct snd_soc_dai *dai, + unsigned int tx_mask, unsigned int rx_mask, + int slots, int slot_width) +{ + struct snd_soc_component *component = dai->component; + struct max98388_priv *max98388 = snd_soc_component_get_drvdata(component); + int bsel = 0; + unsigned int chan_sz = 0; + unsigned int mask; + int cnt, slot_found; + int addr, bits; + + if (!tx_mask && !rx_mask && !slots && !slot_width) + max98388->tdm_mode = false; + else + max98388->tdm_mode = true; + + /* BCLK configuration */ + bsel = max98388_get_bclk_sel(slots * slot_width); + if (bsel == 0) { + dev_err(component->dev, "BCLK %d not supported\n", + slots * slot_width); + return -EINVAL; + } + + regmap_update_bits(max98388->regmap, + MAX98388_R2041_PCM_CLK_SETUP, + MAX98388_PCM_CLK_SETUP_BSEL_MASK, + bsel); + + /* Channel size configuration */ + switch (slot_width) { + case 16: + chan_sz = MAX98388_PCM_MODE_CFG_CHANSZ_16; + break; + case 24: + chan_sz = MAX98388_PCM_MODE_CFG_CHANSZ_24; + break; + case 32: + chan_sz = MAX98388_PCM_MODE_CFG_CHANSZ_32; + break; + default: + dev_err(component->dev, "format unsupported %d\n", + slot_width); + return -EINVAL; + } + + regmap_update_bits(max98388->regmap, + MAX98388_R2040_PCM_MODE_CFG, + MAX98388_PCM_MODE_CFG_CHANSZ_MASK, chan_sz); + + /* Rx slot configuration */ + slot_found = 0; + mask = rx_mask; + for (cnt = 0 ; cnt < MAX_NUM_SLOTS ; cnt++, mask >>= 1) { + if (mask & 0x1) { + if (slot_found == 0) + regmap_update_bits(max98388->regmap, + MAX98388_R2059_PCM_RX_SRC2, + MAX98388_RX_SRC_CH0_SHIFT, + cnt); + else + regmap_update_bits(max98388->regmap, + MAX98388_R2059_PCM_RX_SRC2, + MAX98388_RX_SRC_CH1_SHIFT, + cnt); + slot_found++; + if (slot_found >= MAX_NUM_CH) + break; + } + } + + /* speaker feedback slot configuration */ + slot_found = 0; + mask = tx_mask; + for (cnt = 0 ; cnt < MAX_NUM_SLOTS ; cnt++, mask >>= 1) { + if (mask & 0x1) { + addr = MAX98388_R2044_PCM_TX_CTRL1 + (cnt / 8); + bits = cnt % 8; + regmap_update_bits(max98388->regmap, addr, bits, bits); + if (slot_found >= MAX_NUM_CH) + break; + } + } + + return 0; +} + +#define MAX98388_RATES SNDRV_PCM_RATE_8000_96000 + +#define MAX98388_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) + +static const struct snd_soc_dai_ops max98388_dai_ops = { + .set_fmt = max98388_dai_set_fmt, + .hw_params = max98388_dai_hw_params, + .set_tdm_slot = max98388_dai_tdm_slot, +}; + +static bool max98388_readable_register(struct device *dev, + unsigned int reg) +{ + switch (reg) { + case MAX98388_R2001_INT_RAW1 ... MAX98388_R2002_INT_RAW2: + case MAX98388_R2004_INT_STATE1... MAX98388_R2005_INT_STATE2: + case MAX98388_R2020_THERM_WARN_THRESH: + case MAX98388_R2031_SPK_MON_THRESH + ... MAX98388_R2033_SPK_MON_DURATION: + case MAX98388_R2037_ERR_MON_CTRL: + case MAX98388_R2040_PCM_MODE_CFG + ... MAX98388_R2042_PCM_SR_SETUP: + case MAX98388_R2044_PCM_TX_CTRL1 + ... MAX98388_R2045_PCM_TX_CTRL2: + case MAX98388_R2050_PCM_TX_HIZ_CTRL1 + ... MAX98388_R2059_PCM_RX_SRC2: + case MAX98388_R205C_PCM_TX_DRIVE_STRENGTH + ... MAX98388_R205F_PCM_TX_EN: + case MAX98388_R2090_SPK_CH_VOL_CTRL + ... MAX98388_R2094_SPK_AMP_ER_CTRL: + case MAX98388_R209E_SPK_CH_PINK_NOISE_EN + ... MAX98388_R209F_SPK_CH_AMP_EN: + case MAX98388_R20A0_IV_DATA_DSP_CTRL: + case MAX98388_R20A7_IV_DATA_EN: + case MAX98388_R20E0_BP_ALC_THRESH ... MAX98388_R20E4_BP_ALC_MUTE: + case MAX98388_R20EE_BP_INF_HOLD_REL ... MAX98388_R20EF_BP_ALC_EN: + case MAX98388_R210E_AUTO_RESTART: + case MAX98388_R210F_GLOBAL_EN: + case MAX98388_R22FF_REV_ID: + return true; + default: + return false; + } +}; + +static bool max98388_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case MAX98388_R2001_INT_RAW1 ... MAX98388_R2005_INT_STATE2: + case MAX98388_R210F_GLOBAL_EN: + case MAX98388_R22FF_REV_ID: + return true; + default: + return false; + } +} + +static struct snd_soc_dai_driver max98388_dai[] = { + { + .name = "max98388-aif1", + .playback = { + .stream_name = "HiFi Playback", + .channels_min = 1, + .channels_max = 2, + .rates = MAX98388_RATES, + .formats = MAX98388_FORMATS, + }, + .capture = { + .stream_name = "HiFi Capture", + .channels_min = 1, + .channels_max = 2, + .rates = MAX98388_RATES, + .formats = MAX98388_FORMATS, + }, + .ops = &max98388_dai_ops, + } +}; + +static int max98388_suspend(struct device *dev) +{ + struct max98388_priv *max98388 = dev_get_drvdata(dev); + + regcache_cache_only(max98388->regmap, true); + regcache_mark_dirty(max98388->regmap); + + return 0; +} + +static int max98388_resume(struct device *dev) +{ + struct max98388_priv *max98388 = dev_get_drvdata(dev); + + regcache_cache_only(max98388->regmap, false); + max98388_reset(max98388, dev); + regcache_sync(max98388->regmap); + + return 0; +} + +static const struct dev_pm_ops max98388_pm = { + SYSTEM_SLEEP_PM_OPS(max98388_suspend, max98388_resume) +}; + +static const struct regmap_config max98388_regmap = { + .reg_bits = 16, + .val_bits = 8, + .max_register = MAX98388_R22FF_REV_ID, + .reg_defaults = max98388_reg, + .num_reg_defaults = ARRAY_SIZE(max98388_reg), + .readable_reg = max98388_readable_register, + .volatile_reg = max98388_volatile_reg, + .cache_type = REGCACHE_RBTREE, +}; + +static const struct snd_soc_component_driver soc_codec_dev_max98388 = { + .probe = max98388_probe, + .controls = max98388_snd_controls, + .num_controls = ARRAY_SIZE(max98388_snd_controls), + .dapm_widgets = max98388_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(max98388_dapm_widgets), + .dapm_routes = max98388_audio_map, + .num_dapm_routes = ARRAY_SIZE(max98388_audio_map), + .use_pmdown_time = 1, + .endianness = 1, +}; + +static void max98388_read_deveice_property(struct device *dev, + struct max98388_priv *max98388) +{ + int value; + + if (!device_property_read_u32(dev, "adi,vmon-slot-no", &value)) + max98388->v_slot = value & 0xF; + else + max98388->v_slot = 0; + + if (!device_property_read_u32(dev, "adi,imon-slot-no", &value)) + max98388->i_slot = value & 0xF; + else + max98388->i_slot = 1; + + if (device_property_read_bool(dev, "adi,interleave-mode")) + max98388->interleave_mode = true; + else + max98388->interleave_mode = false; +} + +static int max98388_i2c_probe(struct i2c_client *i2c) +{ + int ret = 0; + int reg = 0; + + struct max98388_priv *max98388 = NULL; + + max98388 = devm_kzalloc(&i2c->dev, sizeof(*max98388), GFP_KERNEL); + if (!max98388) + return -ENOMEM; + + i2c_set_clientdata(i2c, max98388); + + /* regmap initialization */ + max98388->regmap = devm_regmap_init_i2c(i2c, &max98388_regmap); + if (IS_ERR(max98388->regmap)) + return dev_err_probe(&i2c->dev, PTR_ERR(max98388->regmap), + "Failed to allocate register map.\n"); + + /* voltage/current slot & gpio configuration */ + max98388_read_deveice_property(&i2c->dev, max98388); + + /* Device Reset */ + max98388->reset_gpio = devm_gpiod_get_optional(&i2c->dev, + "reset", GPIOD_OUT_HIGH); + if (IS_ERR(max98388->reset_gpio)) + return dev_err_probe(&i2c->dev, PTR_ERR(max98388->reset_gpio), + "Unable to request GPIO\n"); + + if (max98388->reset_gpio) { + usleep_range(5000, 6000); + gpiod_set_value_cansleep(max98388->reset_gpio, 0); + /* Wait for the hw reset done */ + usleep_range(5000, 6000); + } + + /* Read Revision ID */ + ret = regmap_read(max98388->regmap, + MAX98388_R22FF_REV_ID, ®); + if (ret < 0) + return dev_err_probe(&i2c->dev, ret, + "Failed to read the revision ID\n"); + + dev_info(&i2c->dev, "MAX98388 revisionID: 0x%02X\n", reg); + + /* codec registration */ + ret = devm_snd_soc_register_component(&i2c->dev, + &soc_codec_dev_max98388, + max98388_dai, + ARRAY_SIZE(max98388_dai)); + if (ret < 0) + dev_err(&i2c->dev, "Failed to register codec: %d\n", ret); + + return ret; +} + +static const struct i2c_device_id max98388_i2c_id[] = { + { "max98388", 0}, + { }, +}; + +MODULE_DEVICE_TABLE(i2c, max98388_i2c_id); + +static const struct of_device_id max98388_of_match[] = { + { .compatible = "adi,max98388", }, + { } +}; +MODULE_DEVICE_TABLE(of, max98388_of_match); + +static const struct acpi_device_id max98388_acpi_match[] = { + { "ADS8388", 0 }, + {}, +}; +MODULE_DEVICE_TABLE(acpi, max98388_acpi_match); + +static struct i2c_driver max98388_i2c_driver = { + .driver = { + .name = "max98388", + .of_match_table = max98388_of_match, + .acpi_match_table = max98388_acpi_match, + .pm = pm_sleep_ptr(&max98388_pm), + }, + .probe = max98388_i2c_probe, + .id_table = max98388_i2c_id, +}; + +module_i2c_driver(max98388_i2c_driver) + +MODULE_DESCRIPTION("ALSA SoC MAX98388 driver"); +MODULE_AUTHOR("Ryan Lee <ryans.lee@analog.com>"); +MODULE_LICENSE("GPL"); |