diff options
Diffstat (limited to 'sound/soc/codecs/max98390.c')
| -rw-r--r-- | sound/soc/codecs/max98390.c | 1056 |
1 files changed, 1056 insertions, 0 deletions
diff --git a/sound/soc/codecs/max98390.c b/sound/soc/codecs/max98390.c new file mode 100644 index 000000000000..0d63ebfbff2f --- /dev/null +++ b/sound/soc/codecs/max98390.c @@ -0,0 +1,1056 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * max98390.c -- MAX98390 ALSA Soc Audio driver + * + * Copyright (C) 2020 Maxim Integrated Products + * + */ + +#include <linux/acpi.h> +#include <linux/cdev.h> +#include <linux/dmi.h> +#include <linux/firmware.h> +#include <linux/gpio.h> +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/of_gpio.h> +#include <linux/regmap.h> +#include <linux/slab.h> +#include <linux/time.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/tlv.h> + +#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_dsm_calibrate(struct snd_soc_component *component); + +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_MASTER_MASK) { + case SND_SOC_DAIFMT_CBS_CFS: + mode = MAX98390_PCM_MASTER_MODE_SLAVE; + break; + case SND_SOC_DAIFMT_CBM_CFM: + max98390->master = 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->master) { + 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); + + max98390_dsm_calibrate(component); + + 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", + MAX98390_R203A_AMP_EN, 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 ... THERMAL_COILTEMP_RD_BACK_BYTE0: + case DSMIG_DEBUZZER_THRESHOLD ... 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 ... THERMAL_COILTEMP_RD_BACK_BYTE0: + 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 (vendor && product) { + snprintf(filename, sizeof(filename), "dsm_param_%s_%s.bin", + vendor, product); + } else { + sprintf(filename, "dsm_param.bin"); + } + ret = request_firmware(&fw, filename, component->dev); + if (ret) { + ret = request_firmware(&fw, "dsm_param.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"); + 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 < DSM_STBASS_HPF_B0_BYTE0 || + fw->size < param_size + MAX98390_DSM_PAYLOAD_OFFSET) { + dev_err(component->dev, + "param fw is invalid.\n"); + 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 int max98390_dsm_calibrate(struct snd_soc_component *component) +{ + unsigned int rdc, rdc_cal_result, temp; + unsigned int rdc_integer, rdc_factor; + struct max98390_priv *max98390 = + snd_soc_component_get_drvdata(component); + + regmap_write(max98390->regmap, MAX98390_R203A_AMP_EN, 0x81); + regmap_write(max98390->regmap, MAX98390_R23FF_GLOBAL_EN, 0x01); + + regmap_read(max98390->regmap, + THERMAL_RDC_RD_BACK_BYTE1, &rdc); + regmap_read(max98390->regmap, + THERMAL_RDC_RD_BACK_BYTE0, &rdc_cal_result); + rdc_cal_result |= (rdc << 8) & 0x0000FFFF; + if (rdc_cal_result) + max98390->ref_rdc_value = 268435456U / rdc_cal_result; + + regmap_read(max98390->regmap, MAX98390_MEAS_ADC_CH2_READ, &temp); + 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); + + regmap_write(max98390->regmap, MAX98390_R23FF_GLOBAL_EN, 0x00); + regmap_write(max98390->regmap, MAX98390_R203A_AMP_EN, 0x80); + + return 0; +} + +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); + /* Update dsm bin param */ + max98390_dsm_init(component); + + /* Amp Setting */ + regmap_write(max98390->regmap, MAX98390_CLK_MON, 0x6f); + regmap_write(max98390->regmap, MAX98390_PCM_RX_EN_A, 0x03); + regmap_write(max98390->regmap, MAX98390_PWR_GATE_CTL, 0x2d); + 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); + + /* Dsm Setting */ + regmap_write(max98390->regmap, DSM_VOL_CTRL, 0x94); + regmap_write(max98390->regmap, DSMIG_EN, 0x19); + regmap_write(max98390->regmap, MAX98390_R203A_AMP_EN, 0x80); + 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, + .non_legacy_dai_naming = 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, +}; + +#ifdef CONFIG_OF +static const struct of_device_id max98390_dt_ids[] = { + { .compatible = "maxim,max98390", }, + { } +}; +MODULE_DEVICE_TABLE(of, max98390_dt_ids); +#endif + +static int max98390_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + int ret = 0; + int reg = 0; + + struct max98390_priv *max98390 = NULL; + struct i2c_adapter *adapter = to_i2c_adapter(i2c->dev.parent); + + 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); + + /* 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; + } + + /* 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 <steves.lee@maximintegrated.com>"); +MODULE_LICENSE("GPL"); |