// SPDX-License-Identifier: GPL-2.0-or-later /* * max98390.c -- MAX98390 ALSA Soc Audio driver * * Copyright (C) 2020 Maxim Integrated Products * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "max98390.h" static struct reg_default max98390_reg_defaults[] = { {MAX98390_INT_EN1, 0xf0}, {MAX98390_INT_EN2, 0x00}, {MAX98390_INT_EN3, 0x00}, {MAX98390_INT_FLAG_CLR1, 0x00}, {MAX98390_INT_FLAG_CLR2, 0x00}, {MAX98390_INT_FLAG_CLR3, 0x00}, {MAX98390_IRQ_CTRL, 0x01}, {MAX98390_CLK_MON, 0x6d}, {MAX98390_DAT_MON, 0x03}, {MAX98390_WDOG_CTRL, 0x00}, {MAX98390_WDOG_RST, 0x00}, {MAX98390_MEAS_ADC_THERM_WARN_THRESH, 0x75}, {MAX98390_MEAS_ADC_THERM_SHDN_THRESH, 0x8c}, {MAX98390_MEAS_ADC_THERM_HYSTERESIS, 0x08}, {MAX98390_PIN_CFG, 0x55}, {MAX98390_PCM_RX_EN_A, 0x00}, {MAX98390_PCM_RX_EN_B, 0x00}, {MAX98390_PCM_TX_EN_A, 0x00}, {MAX98390_PCM_TX_EN_B, 0x00}, {MAX98390_PCM_TX_HIZ_CTRL_A, 0xff}, {MAX98390_PCM_TX_HIZ_CTRL_B, 0xff}, {MAX98390_PCM_CH_SRC_1, 0x00}, {MAX98390_PCM_CH_SRC_2, 0x00}, {MAX98390_PCM_CH_SRC_3, 0x00}, {MAX98390_PCM_MODE_CFG, 0xc0}, {MAX98390_PCM_MASTER_MODE, 0x1c}, {MAX98390_PCM_CLK_SETUP, 0x44}, {MAX98390_PCM_SR_SETUP, 0x08}, {MAX98390_ICC_RX_EN_A, 0x00}, {MAX98390_ICC_RX_EN_B, 0x00}, {MAX98390_ICC_TX_EN_A, 0x00}, {MAX98390_ICC_TX_EN_B, 0x00}, {MAX98390_ICC_HIZ_MANUAL_MODE, 0x00}, {MAX98390_ICC_TX_HIZ_EN_A, 0x00}, {MAX98390_ICC_TX_HIZ_EN_B, 0x00}, {MAX98390_ICC_LNK_EN, 0x00}, {MAX98390_R2039_AMP_DSP_CFG, 0x0f}, {MAX98390_R203A_AMP_EN, 0x81}, {MAX98390_TONE_GEN_DC_CFG, 0x00}, {MAX98390_SPK_SRC_SEL, 0x00}, {MAX98390_SSM_CFG, 0x85}, {MAX98390_MEAS_EN, 0x03}, {MAX98390_MEAS_DSP_CFG, 0x0f}, {MAX98390_BOOST_CTRL0, 0x1c}, {MAX98390_BOOST_CTRL3, 0x01}, {MAX98390_BOOST_CTRL1, 0x40}, {MAX98390_MEAS_ADC_CFG, 0x07}, {MAX98390_MEAS_ADC_BASE_MSB, 0x00}, {MAX98390_MEAS_ADC_BASE_LSB, 0x23}, {MAX98390_ADC_CH0_DIVIDE, 0x00}, {MAX98390_ADC_CH1_DIVIDE, 0x00}, {MAX98390_ADC_CH2_DIVIDE, 0x00}, {MAX98390_ADC_CH0_FILT_CFG, 0x00}, {MAX98390_ADC_CH1_FILT_CFG, 0x00}, {MAX98390_ADC_CH2_FILT_CFG, 0x00}, {MAX98390_PWR_GATE_CTL, 0x2c}, {MAX98390_BROWNOUT_EN, 0x00}, {MAX98390_BROWNOUT_INFINITE_HOLD, 0x00}, {MAX98390_BROWNOUT_INFINITE_HOLD_CLR, 0x00}, {MAX98390_BROWNOUT_LVL_HOLD, 0x00}, {MAX98390_BROWNOUT_LVL1_THRESH, 0x00}, {MAX98390_BROWNOUT_LVL2_THRESH, 0x00}, {MAX98390_BROWNOUT_LVL3_THRESH, 0x00}, {MAX98390_BROWNOUT_LVL4_THRESH, 0x00}, {MAX98390_BROWNOUT_THRESH_HYSTERYSIS, 0x00}, {MAX98390_BROWNOUT_AMP_LIMITER_ATK_REL, 0x1f}, {MAX98390_BROWNOUT_AMP_GAIN_ATK_REL, 0x00}, {MAX98390_BROWNOUT_AMP1_CLIP_MODE, 0x00}, {MAX98390_BROWNOUT_LVL1_CUR_LIMIT, 0x00}, {MAX98390_BROWNOUT_LVL1_AMP1_CTRL1, 0x00}, {MAX98390_BROWNOUT_LVL1_AMP1_CTRL2, 0x00}, {MAX98390_BROWNOUT_LVL1_AMP1_CTRL3, 0x00}, {MAX98390_BROWNOUT_LVL2_CUR_LIMIT, 0x00}, {MAX98390_BROWNOUT_LVL2_AMP1_CTRL1, 0x00}, {MAX98390_BROWNOUT_LVL2_AMP1_CTRL2, 0x00}, {MAX98390_BROWNOUT_LVL2_AMP1_CTRL3, 0x00}, {MAX98390_BROWNOUT_LVL3_CUR_LIMIT, 0x00}, {MAX98390_BROWNOUT_LVL3_AMP1_CTRL1, 0x00}, {MAX98390_BROWNOUT_LVL3_AMP1_CTRL2, 0x00}, {MAX98390_BROWNOUT_LVL3_AMP1_CTRL3, 0x00}, {MAX98390_BROWNOUT_LVL4_CUR_LIMIT, 0x00}, {MAX98390_BROWNOUT_LVL4_AMP1_CTRL1, 0x00}, {MAX98390_BROWNOUT_LVL4_AMP1_CTRL2, 0x00}, {MAX98390_BROWNOUT_LVL4_AMP1_CTRL3, 0x00}, {MAX98390_BROWNOUT_ILIM_HLD, 0x00}, {MAX98390_BROWNOUT_LIM_HLD, 0x00}, {MAX98390_BROWNOUT_CLIP_HLD, 0x00}, {MAX98390_BROWNOUT_GAIN_HLD, 0x00}, {MAX98390_ENV_TRACK_VOUT_HEADROOM, 0x0f}, {MAX98390_ENV_TRACK_BOOST_VOUT_DELAY, 0x80}, {MAX98390_ENV_TRACK_REL_RATE, 0x07}, {MAX98390_ENV_TRACK_HOLD_RATE, 0x07}, {MAX98390_ENV_TRACK_CTRL, 0x01}, {MAX98390_BOOST_BYPASS1, 0x49}, {MAX98390_BOOST_BYPASS2, 0x2b}, {MAX98390_BOOST_BYPASS3, 0x08}, {MAX98390_FET_SCALING1, 0x00}, {MAX98390_FET_SCALING2, 0x03}, {MAX98390_FET_SCALING3, 0x00}, {MAX98390_FET_SCALING4, 0x07}, {MAX98390_SPK_SPEEDUP, 0x00}, {DSMIG_WB_DRC_RELEASE_TIME_1, 0x00}, {DSMIG_WB_DRC_RELEASE_TIME_2, 0x00}, {DSMIG_WB_DRC_ATTACK_TIME_1, 0x00}, {DSMIG_WB_DRC_ATTACK_TIME_2, 0x00}, {DSMIG_WB_DRC_COMPRESSION_RATIO, 0x00}, {DSMIG_WB_DRC_COMPRESSION_THRESHOLD, 0x00}, {DSMIG_WB_DRC_MAKEUPGAIN, 0x00}, {DSMIG_WB_DRC_NOISE_GATE_THRESHOLD, 0x00}, {DSMIG_WBDRC_HPF_ENABLE, 0x00}, {DSMIG_WB_DRC_TEST_SMOOTHER_OUT_EN, 0x00}, {DSMIG_PPR_THRESHOLD, 0x00}, {DSM_STEREO_BASS_CHANNEL_SELECT, 0x00}, {DSM_TPROT_THRESHOLD_BYTE0, 0x00}, {DSM_TPROT_THRESHOLD_BYTE1, 0x00}, {DSM_TPROT_ROOM_TEMPERATURE_BYTE0, 0x00}, {DSM_TPROT_ROOM_TEMPERATURE_BYTE1, 0x00}, {DSM_TPROT_RECIP_RDC_ROOM_BYTE0, 0x00}, {DSM_TPROT_RECIP_RDC_ROOM_BYTE1, 0x00}, {DSM_TPROT_RECIP_RDC_ROOM_BYTE2, 0x00}, {DSM_TPROT_RECIP_TCONST_BYTE0, 0x00}, {DSM_TPROT_RECIP_TCONST_BYTE1, 0x00}, {DSM_TPROT_RECIP_TCONST_BYTE2, 0x00}, {DSM_THERMAL_ATTENUATION_SETTINGS, 0x00}, {DSM_THERMAL_PILOT_TONE_ATTENUATION, 0x00}, {DSM_TPROT_PG_TEMP_THRESH_BYTE0, 0x00}, {DSM_TPROT_PG_TEMP_THRESH_BYTE1, 0x00}, {DSMIG_DEBUZZER_THRESHOLD, 0x00}, {DSMIG_DEBUZZER_ALPHA_COEF_TEST_ONLY, 0x08}, {DSM_VOL_ENA, 0x20}, {DSM_VOL_CTRL, 0xa0}, {DSMIG_EN, 0x00}, {MAX98390_R23E1_DSP_GLOBAL_EN, 0x00}, {MAX98390_R23FF_GLOBAL_EN, 0x00}, }; static int max98390_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) { struct snd_soc_component *component = codec_dai->component; struct max98390_priv *max98390 = snd_soc_component_get_drvdata(component); unsigned int mode; unsigned int format; unsigned int invert = 0; dev_dbg(component->dev, "%s: fmt 0x%08X\n", __func__, fmt); switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { case SND_SOC_DAIFMT_CBC_CFC: mode = MAX98390_PCM_MASTER_MODE_SLAVE; break; case SND_SOC_DAIFMT_CBP_CFP: max98390->provider = true; mode = MAX98390_PCM_MASTER_MODE_MASTER; break; default: dev_err(component->dev, "DAI clock mode unsupported\n"); return -EINVAL; } regmap_update_bits(max98390->regmap, MAX98390_PCM_MASTER_MODE, MAX98390_PCM_MASTER_MODE_MASK, mode); switch (fmt & SND_SOC_DAIFMT_INV_MASK) { case SND_SOC_DAIFMT_NB_NF: break; case SND_SOC_DAIFMT_IB_NF: invert = MAX98390_PCM_MODE_CFG_PCM_BCLKEDGE; break; default: dev_err(component->dev, "DAI invert mode unsupported\n"); return -EINVAL; } regmap_update_bits(max98390->regmap, MAX98390_PCM_MODE_CFG, MAX98390_PCM_MODE_CFG_PCM_BCLKEDGE, invert); /* interface format */ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_I2S: format = MAX98390_PCM_FORMAT_I2S; break; case SND_SOC_DAIFMT_LEFT_J: format = MAX98390_PCM_FORMAT_LJ; break; case SND_SOC_DAIFMT_DSP_A: format = MAX98390_PCM_FORMAT_TDM_MODE1; break; case SND_SOC_DAIFMT_DSP_B: format = MAX98390_PCM_FORMAT_TDM_MODE0; break; default: return -EINVAL; } regmap_update_bits(max98390->regmap, MAX98390_PCM_MODE_CFG, MAX98390_PCM_MODE_CFG_FORMAT_MASK, format << MAX98390_PCM_MODE_CFG_FORMAT_SHIFT); return 0; } static int max98390_get_bclk_sel(int bclk) { int i; /* BCLKs per LRCLK */ static int bclk_sel_table[] = { 32, 48, 64, 96, 128, 192, 256, 320, 384, 512, }; /* 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 max98390_set_clock(struct snd_soc_component *component, struct snd_pcm_hw_params *params) { struct max98390_priv *max98390 = snd_soc_component_get_drvdata(component); /* codec MCLK rate in master mode */ static int rate_table[] = { 5644800, 6000000, 6144000, 6500000, 9600000, 11289600, 12000000, 12288000, 13000000, 19200000, }; /* BCLK/LRCLK ratio calculation */ int blr_clk_ratio = params_channels(params) * snd_pcm_format_width(params_format(params)); int value; if (max98390->provider) { int i; /* match rate to closest value */ for (i = 0; i < ARRAY_SIZE(rate_table); i++) { if (rate_table[i] >= max98390->sysclk) break; } if (i == ARRAY_SIZE(rate_table)) { dev_err(component->dev, "failed to find proper clock rate.\n"); return -EINVAL; } regmap_update_bits(max98390->regmap, MAX98390_PCM_MASTER_MODE, MAX98390_PCM_MASTER_MODE_MCLK_MASK, i << MAX98390_PCM_MASTER_MODE_MCLK_RATE_SHIFT); } if (!max98390->tdm_mode) { /* BCLK configuration */ value = max98390_get_bclk_sel(blr_clk_ratio); if (!value) { dev_err(component->dev, "format unsupported %d\n", params_format(params)); return -EINVAL; } regmap_update_bits(max98390->regmap, MAX98390_PCM_CLK_SETUP, MAX98390_PCM_CLK_SETUP_BSEL_MASK, value); } return 0; } static int max98390_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 max98390_priv *max98390 = snd_soc_component_get_drvdata(component); unsigned int sampling_rate; unsigned int chan_sz; /* pcm mode configuration */ switch (snd_pcm_format_width(params_format(params))) { case 16: chan_sz = MAX98390_PCM_MODE_CFG_CHANSZ_16; break; case 24: chan_sz = MAX98390_PCM_MODE_CFG_CHANSZ_24; break; case 32: chan_sz = MAX98390_PCM_MODE_CFG_CHANSZ_32; break; default: dev_err(component->dev, "format unsupported %d\n", params_format(params)); goto err; } regmap_update_bits(max98390->regmap, MAX98390_PCM_MODE_CFG, MAX98390_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 = MAX98390_PCM_SR_SET1_SR_8000; break; case 11025: sampling_rate = MAX98390_PCM_SR_SET1_SR_11025; break; case 12000: sampling_rate = MAX98390_PCM_SR_SET1_SR_12000; break; case 16000: sampling_rate = MAX98390_PCM_SR_SET1_SR_16000; break; case 22050: sampling_rate = MAX98390_PCM_SR_SET1_SR_22050; break; case 24000: sampling_rate = MAX98390_PCM_SR_SET1_SR_24000; break; case 32000: sampling_rate = MAX98390_PCM_SR_SET1_SR_32000; break; case 44100: sampling_rate = MAX98390_PCM_SR_SET1_SR_44100; break; case 48000: sampling_rate = MAX98390_PCM_SR_SET1_SR_48000; 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(max98390->regmap, MAX98390_PCM_SR_SETUP, MAX98390_PCM_SR_SET1_SR_MASK, sampling_rate); return max98390_set_clock(component, params); err: return -EINVAL; } static int max98390_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 max98390_priv *max98390 = snd_soc_component_get_drvdata(component); int bsel; unsigned int chan_sz; if (!tx_mask && !rx_mask && !slots && !slot_width) max98390->tdm_mode = false; else max98390->tdm_mode = true; dev_dbg(component->dev, "Tdm mode : %d\n", max98390->tdm_mode); /* BCLK configuration */ bsel = max98390_get_bclk_sel(slots * slot_width); if (!bsel) { dev_err(component->dev, "BCLK %d not supported\n", slots * slot_width); return -EINVAL; } regmap_update_bits(max98390->regmap, MAX98390_PCM_CLK_SETUP, MAX98390_PCM_CLK_SETUP_BSEL_MASK, bsel); /* Channel size configuration */ switch (slot_width) { case 16: chan_sz = MAX98390_PCM_MODE_CFG_CHANSZ_16; break; case 24: chan_sz = MAX98390_PCM_MODE_CFG_CHANSZ_24; break; case 32: chan_sz = MAX98390_PCM_MODE_CFG_CHANSZ_32; break; default: dev_err(component->dev, "format unsupported %d\n", slot_width); return -EINVAL; } regmap_update_bits(max98390->regmap, MAX98390_PCM_MODE_CFG, MAX98390_PCM_MODE_CFG_CHANSZ_MASK, chan_sz); /* Rx slot configuration */ regmap_write(max98390->regmap, MAX98390_PCM_RX_EN_A, rx_mask & 0xFF); regmap_write(max98390->regmap, MAX98390_PCM_RX_EN_B, (rx_mask & 0xFF00) >> 8); /* Tx slot Hi-Z configuration */ regmap_write(max98390->regmap, MAX98390_PCM_TX_HIZ_CTRL_A, ~tx_mask & 0xFF); regmap_write(max98390->regmap, MAX98390_PCM_TX_HIZ_CTRL_B, (~tx_mask & 0xFF00) >> 8); return 0; } static int max98390_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, unsigned int freq, int dir) { struct snd_soc_component *component = dai->component; struct max98390_priv *max98390 = snd_soc_component_get_drvdata(component); max98390->sysclk = freq; return 0; } static const struct snd_soc_dai_ops max98390_dai_ops = { .set_sysclk = max98390_dai_set_sysclk, .set_fmt = max98390_dai_set_fmt, .hw_params = max98390_dai_hw_params, .set_tdm_slot = max98390_dai_tdm_slot, }; static int max98390_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 max98390_priv *max98390 = snd_soc_component_get_drvdata(component); switch (event) { case SND_SOC_DAPM_POST_PMU: regmap_update_bits(max98390->regmap, MAX98390_R203A_AMP_EN, MAX98390_AMP_EN_MASK, 1); regmap_update_bits(max98390->regmap, MAX98390_R23FF_GLOBAL_EN, MAX98390_GLOBAL_EN_MASK, 1); break; case SND_SOC_DAPM_POST_PMD: regmap_update_bits(max98390->regmap, MAX98390_R23FF_GLOBAL_EN, MAX98390_GLOBAL_EN_MASK, 0); regmap_update_bits(max98390->regmap, MAX98390_R203A_AMP_EN, MAX98390_AMP_EN_MASK, 0); break; } return 0; } static const char * const max98390_switch_text[] = { "Left", "Right", "LeftRight"}; static const char * const max98390_boost_voltage_text[] = { "6.5V", "6.625V", "6.75V", "6.875V", "7V", "7.125V", "7.25V", "7.375V", "7.5V", "7.625V", "7.75V", "7.875V", "8V", "8.125V", "8.25V", "8.375V", "8.5V", "8.625V", "8.75V", "8.875V", "9V", "9.125V", "9.25V", "9.375V", "9.5V", "9.625V", "9.75V", "9.875V", "10V" }; static SOC_ENUM_SINGLE_DECL(max98390_boost_voltage, MAX98390_BOOST_CTRL0, 0, max98390_boost_voltage_text); static DECLARE_TLV_DB_SCALE(max98390_spk_tlv, 300, 300, 0); static DECLARE_TLV_DB_SCALE(max98390_digital_tlv, -8000, 50, 0); static const char * const max98390_current_limit_text[] = { "0.00A", "0.50A", "1.00A", "1.05A", "1.10A", "1.15A", "1.20A", "1.25A", "1.30A", "1.35A", "1.40A", "1.45A", "1.50A", "1.55A", "1.60A", "1.65A", "1.70A", "1.75A", "1.80A", "1.85A", "1.90A", "1.95A", "2.00A", "2.05A", "2.10A", "2.15A", "2.20A", "2.25A", "2.30A", "2.35A", "2.40A", "2.45A", "2.50A", "2.55A", "2.60A", "2.65A", "2.70A", "2.75A", "2.80A", "2.85A", "2.90A", "2.95A", "3.00A", "3.05A", "3.10A", "3.15A", "3.20A", "3.25A", "3.30A", "3.35A", "3.40A", "3.45A", "3.50A", "3.55A", "3.60A", "3.65A", "3.70A", "3.75A", "3.80A", "3.85A", "3.90A", "3.95A", "4.00A", "4.05A", "4.10A" }; static SOC_ENUM_SINGLE_DECL(max98390_current_limit, MAX98390_BOOST_CTRL1, 0, max98390_current_limit_text); static int max98390_ref_rdc_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct max98390_priv *max98390 = snd_soc_component_get_drvdata(component); max98390->ref_rdc_value = ucontrol->value.integer.value[0]; regmap_write(max98390->regmap, DSM_TPROT_RECIP_RDC_ROOM_BYTE0, max98390->ref_rdc_value & 0x000000ff); regmap_write(max98390->regmap, DSM_TPROT_RECIP_RDC_ROOM_BYTE1, (max98390->ref_rdc_value >> 8) & 0x000000ff); regmap_write(max98390->regmap, DSM_TPROT_RECIP_RDC_ROOM_BYTE2, (max98390->ref_rdc_value >> 16) & 0x000000ff); return 0; } static int max98390_ref_rdc_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct max98390_priv *max98390 = snd_soc_component_get_drvdata(component); ucontrol->value.integer.value[0] = max98390->ref_rdc_value; return 0; } static int max98390_ambient_temp_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct max98390_priv *max98390 = snd_soc_component_get_drvdata(component); max98390->ambient_temp_value = ucontrol->value.integer.value[0]; regmap_write(max98390->regmap, DSM_TPROT_ROOM_TEMPERATURE_BYTE1, (max98390->ambient_temp_value >> 8) & 0x000000ff); regmap_write(max98390->regmap, DSM_TPROT_ROOM_TEMPERATURE_BYTE0, (max98390->ambient_temp_value) & 0x000000ff); return 0; } static int max98390_ambient_temp_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct max98390_priv *max98390 = snd_soc_component_get_drvdata(component); ucontrol->value.integer.value[0] = max98390->ambient_temp_value; return 0; } static int max98390_adaptive_rdc_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); dev_warn(component->dev, "Put adaptive rdc not supported\n"); return 0; } static int max98390_adaptive_rdc_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { int rdc, rdc0; struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct max98390_priv *max98390 = snd_soc_component_get_drvdata(component); regmap_read(max98390->regmap, THERMAL_RDC_RD_BACK_BYTE1, &rdc); regmap_read(max98390->regmap, THERMAL_RDC_RD_BACK_BYTE0, &rdc0); ucontrol->value.integer.value[0] = rdc0 | rdc << 8; return 0; } static int max98390_dsm_calib_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { /* Do nothing */ return 0; } static int max98390_dsm_calib_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct max98390_priv *max98390 = snd_soc_component_get_drvdata(component); struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); unsigned int rdc, rdc_cal_result, rdc_integer, rdc_factor, temp, val; snd_soc_dapm_mutex_lock(dapm); regmap_read(max98390->regmap, MAX98390_R23FF_GLOBAL_EN, &val); if (!val) { /* Enable the codec for the duration of calibration readout */ regmap_update_bits(max98390->regmap, MAX98390_R203A_AMP_EN, MAX98390_AMP_EN_MASK, 1); regmap_update_bits(max98390->regmap, MAX98390_R23FF_GLOBAL_EN, MAX98390_GLOBAL_EN_MASK, 1); } regmap_read(max98390->regmap, THERMAL_RDC_RD_BACK_BYTE1, &rdc); regmap_read(max98390->regmap, THERMAL_RDC_RD_BACK_BYTE0, &rdc_cal_result); regmap_read(max98390->regmap, MAX98390_MEAS_ADC_CH2_READ, &temp); if (!val) { /* Disable the codec if it was disabled */ regmap_update_bits(max98390->regmap, MAX98390_R23FF_GLOBAL_EN, MAX98390_GLOBAL_EN_MASK, 0); regmap_update_bits(max98390->regmap, MAX98390_R203A_AMP_EN, MAX98390_AMP_EN_MASK, 0); } snd_soc_dapm_mutex_unlock(dapm); rdc_cal_result |= (rdc << 8) & 0x0000FFFF; if (rdc_cal_result) max98390->ref_rdc_value = 268435456U / rdc_cal_result; max98390->ambient_temp_value = temp * 52 - 1188; rdc_integer = rdc_cal_result * 937 / 65536; rdc_factor = ((rdc_cal_result * 937 * 100) / 65536) - (rdc_integer * 100); dev_info(component->dev, "rdc resistance about %d.%02d ohm, reg=0x%X temp reg=0x%X\n", rdc_integer, rdc_factor, rdc_cal_result, temp); return 0; } static const struct snd_kcontrol_new max98390_snd_controls[] = { SOC_SINGLE_TLV("Digital Volume", DSM_VOL_CTRL, 0, 184, 0, max98390_digital_tlv), SOC_SINGLE_TLV("Speaker Volume", MAX98390_R203D_SPK_GAIN, 0, 6, 0, max98390_spk_tlv), SOC_SINGLE("Ramp Up Bypass Switch", MAX98390_R2039_AMP_DSP_CFG, MAX98390_AMP_DSP_CFG_RMP_UP_SHIFT, 1, 0), SOC_SINGLE("Ramp Down Bypass Switch", MAX98390_R2039_AMP_DSP_CFG, MAX98390_AMP_DSP_CFG_RMP_DN_SHIFT, 1, 0), SOC_SINGLE("Boost Clock Phase", MAX98390_BOOST_CTRL3, MAX98390_BOOST_CLK_PHASE_CFG_SHIFT, 3, 0), SOC_ENUM("Boost Output Voltage", max98390_boost_voltage), SOC_ENUM("Current Limit", max98390_current_limit), SOC_SINGLE_EXT("DSM Rdc", SND_SOC_NOPM, 0, 0xffffff, 0, max98390_ref_rdc_get, max98390_ref_rdc_put), SOC_SINGLE_EXT("DSM Ambient Temp", SND_SOC_NOPM, 0, 0xffff, 0, max98390_ambient_temp_get, max98390_ambient_temp_put), SOC_SINGLE_EXT("DSM Adaptive Rdc", SND_SOC_NOPM, 0, 0xffff, 0, max98390_adaptive_rdc_get, max98390_adaptive_rdc_put), SOC_SINGLE_EXT("DSM Calibration", SND_SOC_NOPM, 0, 1, 0, max98390_dsm_calib_get, max98390_dsm_calib_put), }; static const struct soc_enum dai_sel_enum = SOC_ENUM_SINGLE(MAX98390_PCM_CH_SRC_1, MAX98390_PCM_RX_CH_SRC_SHIFT, 3, max98390_switch_text); static const struct snd_kcontrol_new max98390_dai_controls = SOC_DAPM_ENUM("DAI Sel", dai_sel_enum); static const struct snd_soc_dapm_widget max98390_dapm_widgets[] = { SND_SOC_DAPM_DAC_E("Amp Enable", "HiFi Playback", SND_SOC_NOPM, 0, 0, max98390_dac_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_MUX("DAI Sel Mux", SND_SOC_NOPM, 0, 0, &max98390_dai_controls), SND_SOC_DAPM_OUTPUT("BE_OUT"), }; static const struct snd_soc_dapm_route max98390_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"}, }; static bool max98390_readable_register(struct device *dev, unsigned int reg) { switch (reg) { case MAX98390_SOFTWARE_RESET ... MAX98390_INT_EN3: case MAX98390_IRQ_CTRL ... MAX98390_WDOG_CTRL: case MAX98390_MEAS_ADC_THERM_WARN_THRESH ... MAX98390_BROWNOUT_INFINITE_HOLD: case MAX98390_BROWNOUT_LVL_HOLD ... DSMIG_DEBUZZER_THRESHOLD: case DSM_VOL_ENA ... MAX98390_R24FF_REV_ID: return true; default: return false; } }; static bool max98390_volatile_reg(struct device *dev, unsigned int reg) { switch (reg) { case MAX98390_SOFTWARE_RESET ... MAX98390_INT_EN3: case MAX98390_MEAS_ADC_CH0_READ ... MAX98390_MEAS_ADC_CH2_READ: case MAX98390_PWR_GATE_STATUS ... MAX98390_BROWNOUT_STATUS: case MAX98390_BROWNOUT_LOWEST_STATUS: case MAX98390_ENV_TRACK_BOOST_VOUT_READ: case DSM_STBASS_HPF_B0_BYTE0 ... DSM_DEBUZZER_ATTACK_TIME_BYTE2: case THERMAL_RDC_RD_BACK_BYTE1 ... DSMIG_DEBUZZER_THRESHOLD: case DSM_THERMAL_GAIN ... DSM_WBDRC_GAIN: return true; default: return false; } } #define MAX98390_RATES SNDRV_PCM_RATE_8000_48000 #define MAX98390_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) static struct snd_soc_dai_driver max98390_dai[] = { { .name = "max98390-aif1", .playback = { .stream_name = "HiFi Playback", .channels_min = 1, .channels_max = 2, .rates = MAX98390_RATES, .formats = MAX98390_FORMATS, }, .capture = { .stream_name = "HiFi Capture", .channels_min = 1, .channels_max = 2, .rates = MAX98390_RATES, .formats = MAX98390_FORMATS, }, .ops = &max98390_dai_ops, } }; static int max98390_dsm_init(struct snd_soc_component *component) { int ret; int param_size, param_start_addr; char filename[128]; const char *vendor, *product; struct max98390_priv *max98390 = snd_soc_component_get_drvdata(component); const struct firmware *fw; char *dsm_param; vendor = dmi_get_system_info(DMI_SYS_VENDOR); product = dmi_get_system_info(DMI_PRODUCT_NAME); if (!strcmp(max98390->dsm_param_name, "default")) { if (vendor && product) { snprintf(filename, sizeof(filename), "dsm_param_%s_%s.bin", vendor, product); } else { sprintf(filename, "dsm_param.bin"); } } else { snprintf(filename, sizeof(filename), "%s", max98390->dsm_param_name); } ret = request_firmware(&fw, filename, component->dev); if (ret) { ret = request_firmware(&fw, "dsm_param.bin", component->dev); if (ret) { ret = request_firmware(&fw, "dsmparam.bin", component->dev); if (ret) goto err; } } dev_dbg(component->dev, "max98390: param fw size %zd\n", fw->size); if (fw->size < MAX98390_DSM_PARAM_MIN_SIZE) { dev_err(component->dev, "param fw is invalid.\n"); ret = -EINVAL; goto err_alloc; } dsm_param = (char *)fw->data; param_start_addr = (dsm_param[0] & 0xff) | (dsm_param[1] & 0xff) << 8; param_size = (dsm_param[2] & 0xff) | (dsm_param[3] & 0xff) << 8; if (param_size > MAX98390_DSM_PARAM_MAX_SIZE || param_start_addr < MAX98390_IRQ_CTRL || fw->size < param_size + MAX98390_DSM_PAYLOAD_OFFSET) { dev_err(component->dev, "param fw is invalid.\n"); ret = -EINVAL; goto err_alloc; } regmap_write(max98390->regmap, MAX98390_R203A_AMP_EN, 0x80); dsm_param += MAX98390_DSM_PAYLOAD_OFFSET; regmap_bulk_write(max98390->regmap, param_start_addr, dsm_param, param_size); regmap_write(max98390->regmap, MAX98390_R23E1_DSP_GLOBAL_EN, 0x01); err_alloc: release_firmware(fw); err: return ret; } static void max98390_init_regs(struct snd_soc_component *component) { struct max98390_priv *max98390 = snd_soc_component_get_drvdata(component); regmap_write(max98390->regmap, MAX98390_CLK_MON, 0x6f); regmap_write(max98390->regmap, MAX98390_DAT_MON, 0x00); regmap_write(max98390->regmap, MAX98390_PWR_GATE_CTL, 0x00); regmap_write(max98390->regmap, MAX98390_PCM_RX_EN_A, 0x03); regmap_write(max98390->regmap, MAX98390_ENV_TRACK_VOUT_HEADROOM, 0x0e); regmap_write(max98390->regmap, MAX98390_BOOST_BYPASS1, 0x46); regmap_write(max98390->regmap, MAX98390_FET_SCALING3, 0x03); /* voltage, current slot configuration */ regmap_write(max98390->regmap, MAX98390_PCM_CH_SRC_2, (max98390->i_l_slot << 4 | max98390->v_l_slot)&0xFF); if (max98390->v_l_slot < 8) { regmap_update_bits(max98390->regmap, MAX98390_PCM_TX_HIZ_CTRL_A, 1 << max98390->v_l_slot, 0); regmap_update_bits(max98390->regmap, MAX98390_PCM_TX_EN_A, 1 << max98390->v_l_slot, 1 << max98390->v_l_slot); } else { regmap_update_bits(max98390->regmap, MAX98390_PCM_TX_HIZ_CTRL_B, 1 << (max98390->v_l_slot - 8), 0); regmap_update_bits(max98390->regmap, MAX98390_PCM_TX_EN_B, 1 << (max98390->v_l_slot - 8), 1 << (max98390->v_l_slot - 8)); } if (max98390->i_l_slot < 8) { regmap_update_bits(max98390->regmap, MAX98390_PCM_TX_HIZ_CTRL_A, 1 << max98390->i_l_slot, 0); regmap_update_bits(max98390->regmap, MAX98390_PCM_TX_EN_A, 1 << max98390->i_l_slot, 1 << max98390->i_l_slot); } else { regmap_update_bits(max98390->regmap, MAX98390_PCM_TX_HIZ_CTRL_B, 1 << (max98390->i_l_slot - 8), 0); regmap_update_bits(max98390->regmap, MAX98390_PCM_TX_EN_B, 1 << (max98390->i_l_slot - 8), 1 << (max98390->i_l_slot - 8)); } } static int max98390_probe(struct snd_soc_component *component) { struct max98390_priv *max98390 = snd_soc_component_get_drvdata(component); regmap_write(max98390->regmap, MAX98390_SOFTWARE_RESET, 0x01); /* Sleep reset settle time */ msleep(20); /* Amp init setting */ max98390_init_regs(component); /* Update dsm bin param */ max98390_dsm_init(component); /* Dsm Setting */ if (max98390->ref_rdc_value) { regmap_write(max98390->regmap, DSM_TPROT_RECIP_RDC_ROOM_BYTE0, max98390->ref_rdc_value & 0x000000ff); regmap_write(max98390->regmap, DSM_TPROT_RECIP_RDC_ROOM_BYTE1, (max98390->ref_rdc_value >> 8) & 0x000000ff); regmap_write(max98390->regmap, DSM_TPROT_RECIP_RDC_ROOM_BYTE2, (max98390->ref_rdc_value >> 16) & 0x000000ff); } if (max98390->ambient_temp_value) { regmap_write(max98390->regmap, DSM_TPROT_ROOM_TEMPERATURE_BYTE1, (max98390->ambient_temp_value >> 8) & 0x000000ff); regmap_write(max98390->regmap, DSM_TPROT_ROOM_TEMPERATURE_BYTE0, (max98390->ambient_temp_value) & 0x000000ff); } return 0; } #ifdef CONFIG_PM_SLEEP static int max98390_suspend(struct device *dev) { struct max98390_priv *max98390 = dev_get_drvdata(dev); dev_dbg(dev, "%s:Enter\n", __func__); regcache_cache_only(max98390->regmap, true); regcache_mark_dirty(max98390->regmap); return 0; } static int max98390_resume(struct device *dev) { struct max98390_priv *max98390 = dev_get_drvdata(dev); dev_dbg(dev, "%s:Enter\n", __func__); regcache_cache_only(max98390->regmap, false); regcache_sync(max98390->regmap); return 0; } #endif static const struct dev_pm_ops max98390_pm = { SET_SYSTEM_SLEEP_PM_OPS(max98390_suspend, max98390_resume) }; static const struct snd_soc_component_driver soc_codec_dev_max98390 = { .probe = max98390_probe, .controls = max98390_snd_controls, .num_controls = ARRAY_SIZE(max98390_snd_controls), .dapm_widgets = max98390_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(max98390_dapm_widgets), .dapm_routes = max98390_audio_map, .num_dapm_routes = ARRAY_SIZE(max98390_audio_map), .idle_bias_on = 1, .use_pmdown_time = 1, .endianness = 1, }; static const struct regmap_config max98390_regmap = { .reg_bits = 16, .val_bits = 8, .max_register = MAX98390_R24FF_REV_ID, .reg_defaults = max98390_reg_defaults, .num_reg_defaults = ARRAY_SIZE(max98390_reg_defaults), .readable_reg = max98390_readable_register, .volatile_reg = max98390_volatile_reg, .cache_type = REGCACHE_RBTREE, }; static void max98390_slot_config(struct i2c_client *i2c, struct max98390_priv *max98390) { int value; struct device *dev = &i2c->dev; if (!device_property_read_u32(dev, "maxim,vmon-slot-no", &value)) max98390->v_l_slot = value & 0xF; else max98390->v_l_slot = 0; if (!device_property_read_u32(dev, "maxim,imon-slot-no", &value)) max98390->i_l_slot = value & 0xF; else max98390->i_l_slot = 1; } static int max98390_i2c_probe(struct i2c_client *i2c) { int ret = 0; int reg = 0; struct max98390_priv *max98390 = NULL; struct i2c_adapter *adapter = i2c->adapter; struct gpio_desc *reset_gpio; ret = i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE | I2C_FUNC_SMBUS_BYTE_DATA); if (!ret) { dev_err(&i2c->dev, "I2C check functionality failed\n"); return -ENXIO; } max98390 = devm_kzalloc(&i2c->dev, sizeof(*max98390), GFP_KERNEL); if (!max98390) { ret = -ENOMEM; return ret; } i2c_set_clientdata(i2c, max98390); ret = device_property_read_u32(&i2c->dev, "maxim,temperature_calib", &max98390->ambient_temp_value); if (ret) { dev_info(&i2c->dev, "no optional property 'temperature_calib' found, default:\n"); } ret = device_property_read_u32(&i2c->dev, "maxim,r0_calib", &max98390->ref_rdc_value); if (ret) { dev_info(&i2c->dev, "no optional property 'r0_calib' found, default:\n"); } dev_info(&i2c->dev, "%s: r0_calib: 0x%x,temperature_calib: 0x%x", __func__, max98390->ref_rdc_value, max98390->ambient_temp_value); ret = device_property_read_string(&i2c->dev, "maxim,dsm_param_name", &max98390->dsm_param_name); if (ret) max98390->dsm_param_name = "default"; /* voltage/current slot configuration */ max98390_slot_config(i2c, max98390); /* regmap initialization */ max98390->regmap = devm_regmap_init_i2c(i2c, &max98390_regmap); if (IS_ERR(max98390->regmap)) { ret = PTR_ERR(max98390->regmap); dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret); return ret; } reset_gpio = devm_gpiod_get_optional(&i2c->dev, "reset", GPIOD_OUT_HIGH); /* Power on device */ if (reset_gpio) { usleep_range(1000, 2000); /* bring out of reset */ gpiod_set_value_cansleep(reset_gpio, 0); usleep_range(1000, 2000); } /* Check Revision ID */ ret = regmap_read(max98390->regmap, MAX98390_R24FF_REV_ID, ®); if (ret) { dev_err(&i2c->dev, "ret=%d, Failed to read: 0x%02X\n", ret, MAX98390_R24FF_REV_ID); return ret; } dev_info(&i2c->dev, "MAX98390 revisionID: 0x%02X\n", reg); ret = devm_snd_soc_register_component(&i2c->dev, &soc_codec_dev_max98390, max98390_dai, ARRAY_SIZE(max98390_dai)); return ret; } static const struct i2c_device_id max98390_i2c_id[] = { { "max98390", 0}, {}, }; MODULE_DEVICE_TABLE(i2c, max98390_i2c_id); #if defined(CONFIG_OF) static const struct of_device_id max98390_of_match[] = { { .compatible = "maxim,max98390", }, {} }; MODULE_DEVICE_TABLE(of, max98390_of_match); #endif #ifdef CONFIG_ACPI static const struct acpi_device_id max98390_acpi_match[] = { { "MX98390", 0 }, {}, }; MODULE_DEVICE_TABLE(acpi, max98390_acpi_match); #endif static struct i2c_driver max98390_i2c_driver = { .driver = { .name = "max98390", .of_match_table = of_match_ptr(max98390_of_match), .acpi_match_table = ACPI_PTR(max98390_acpi_match), .pm = &max98390_pm, }, .probe = max98390_i2c_probe, .id_table = max98390_i2c_id, }; module_i2c_driver(max98390_i2c_driver) MODULE_DESCRIPTION("ALSA SoC MAX98390 driver"); MODULE_AUTHOR("Steve Lee "); MODULE_LICENSE("GPL");