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1// SPDX-License-Identifier: GPL-2.02//3// PCM3060 codec driver4//5// Copyright (C) 2018 Kirill Marinushkin <k.marinushkin@gmail.com>6 7#include <linux/module.h>8#include <sound/pcm_params.h>9#include <sound/soc.h>10#include <sound/tlv.h>11 12#include "pcm3060.h"13 14/* dai */15 16static int pcm3060_set_sysclk(struct snd_soc_dai *dai, int clk_id,17 unsigned int freq, int dir)18{19 struct snd_soc_component *comp = dai->component;20 struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp);21 unsigned int reg;22 unsigned int val;23 24 if (dir != SND_SOC_CLOCK_IN) {25 dev_err(comp->dev, "unsupported sysclock dir: %d\n", dir);26 return -EINVAL;27 }28 29 switch (clk_id) {30 case PCM3060_CLK_DEF:31 val = 0;32 break;33 34 case PCM3060_CLK1:35 val = (dai->id == PCM3060_DAI_ID_DAC ? PCM3060_REG_CSEL : 0);36 break;37 38 case PCM3060_CLK2:39 val = (dai->id == PCM3060_DAI_ID_DAC ? 0 : PCM3060_REG_CSEL);40 break;41 42 default:43 dev_err(comp->dev, "unsupported sysclock id: %d\n", clk_id);44 return -EINVAL;45 }46 47 if (dai->id == PCM3060_DAI_ID_DAC)48 reg = PCM3060_REG67;49 else50 reg = PCM3060_REG72;51 52 regmap_update_bits(priv->regmap, reg, PCM3060_REG_CSEL, val);53 54 priv->dai[dai->id].sclk_freq = freq;55 56 return 0;57}58 59static int pcm3060_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)60{61 struct snd_soc_component *comp = dai->component;62 struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp);63 unsigned int reg;64 unsigned int val;65 66 if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF) {67 dev_err(comp->dev, "unsupported DAI polarity: 0x%x\n", fmt);68 return -EINVAL;69 }70 71 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {72 case SND_SOC_DAIFMT_CBP_CFP:73 priv->dai[dai->id].is_provider = true;74 break;75 case SND_SOC_DAIFMT_CBC_CFC:76 priv->dai[dai->id].is_provider = false;77 break;78 default:79 dev_err(comp->dev, "unsupported DAI mode: 0x%x\n", fmt);80 return -EINVAL;81 }82 83 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {84 case SND_SOC_DAIFMT_I2S:85 val = PCM3060_REG_FMT_I2S;86 break;87 case SND_SOC_DAIFMT_RIGHT_J:88 val = PCM3060_REG_FMT_RJ;89 break;90 case SND_SOC_DAIFMT_LEFT_J:91 val = PCM3060_REG_FMT_LJ;92 break;93 default:94 dev_err(comp->dev, "unsupported DAI format: 0x%x\n", fmt);95 return -EINVAL;96 }97 98 if (dai->id == PCM3060_DAI_ID_DAC)99 reg = PCM3060_REG67;100 else101 reg = PCM3060_REG72;102 103 regmap_update_bits(priv->regmap, reg, PCM3060_REG_MASK_FMT, val);104 105 return 0;106}107 108static int pcm3060_hw_params(struct snd_pcm_substream *substream,109 struct snd_pcm_hw_params *params,110 struct snd_soc_dai *dai)111{112 struct snd_soc_component *comp = dai->component;113 struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp);114 unsigned int rate;115 unsigned int ratio;116 unsigned int reg;117 unsigned int val;118 119 if (!priv->dai[dai->id].is_provider) {120 val = PCM3060_REG_MS_S;121 goto val_ready;122 }123 124 rate = params_rate(params);125 if (!rate) {126 dev_err(comp->dev, "rate is not configured\n");127 return -EINVAL;128 }129 130 ratio = priv->dai[dai->id].sclk_freq / rate;131 132 switch (ratio) {133 case 768:134 val = PCM3060_REG_MS_M768;135 break;136 case 512:137 val = PCM3060_REG_MS_M512;138 break;139 case 384:140 val = PCM3060_REG_MS_M384;141 break;142 case 256:143 val = PCM3060_REG_MS_M256;144 break;145 case 192:146 val = PCM3060_REG_MS_M192;147 break;148 case 128:149 val = PCM3060_REG_MS_M128;150 break;151 default:152 dev_err(comp->dev, "unsupported ratio: %d\n", ratio);153 return -EINVAL;154 }155 156val_ready:157 if (dai->id == PCM3060_DAI_ID_DAC)158 reg = PCM3060_REG67;159 else160 reg = PCM3060_REG72;161 162 regmap_update_bits(priv->regmap, reg, PCM3060_REG_MASK_MS, val);163 164 return 0;165}166 167static const struct snd_soc_dai_ops pcm3060_dai_ops = {168 .set_sysclk = pcm3060_set_sysclk,169 .set_fmt = pcm3060_set_fmt,170 .hw_params = pcm3060_hw_params,171};172 173#define PCM3060_DAI_RATES_ADC (SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_32000 | \174 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \175 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)176 177#define PCM3060_DAI_RATES_DAC (PCM3060_DAI_RATES_ADC | \178 SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000)179 180static struct snd_soc_dai_driver pcm3060_dai[] = {181 {182 .name = "pcm3060-dac",183 .id = PCM3060_DAI_ID_DAC,184 .playback = {185 .stream_name = "Playback",186 .channels_min = 2,187 .channels_max = 2,188 .rates = PCM3060_DAI_RATES_DAC,189 .formats = SNDRV_PCM_FMTBIT_S24_LE,190 },191 .ops = &pcm3060_dai_ops,192 },193 {194 .name = "pcm3060-adc",195 .id = PCM3060_DAI_ID_ADC,196 .capture = {197 .stream_name = "Capture",198 .channels_min = 2,199 .channels_max = 2,200 .rates = PCM3060_DAI_RATES_ADC,201 .formats = SNDRV_PCM_FMTBIT_S24_LE,202 },203 .ops = &pcm3060_dai_ops,204 },205};206 207/* dapm */208 209static DECLARE_TLV_DB_SCALE(pcm3060_dapm_tlv, -10050, 50, 1);210 211static const struct snd_kcontrol_new pcm3060_dapm_controls[] = {212 SOC_DOUBLE_R_RANGE_TLV("Master Playback Volume",213 PCM3060_REG65, PCM3060_REG66, 0,214 PCM3060_REG_AT2_MIN, PCM3060_REG_AT2_MAX,215 0, pcm3060_dapm_tlv),216 SOC_DOUBLE("Master Playback Switch", PCM3060_REG68,217 PCM3060_REG_SHIFT_MUT21, PCM3060_REG_SHIFT_MUT22, 1, 1),218 219 SOC_DOUBLE_R_RANGE_TLV("Master Capture Volume",220 PCM3060_REG70, PCM3060_REG71, 0,221 PCM3060_REG_AT1_MIN, PCM3060_REG_AT1_MAX,222 0, pcm3060_dapm_tlv),223 SOC_DOUBLE("Master Capture Switch", PCM3060_REG73,224 PCM3060_REG_SHIFT_MUT11, PCM3060_REG_SHIFT_MUT12, 1, 1),225};226 227static const struct snd_soc_dapm_widget pcm3060_dapm_widgets[] = {228 SND_SOC_DAPM_DAC("DAC", "Playback", PCM3060_REG64,229 PCM3060_REG_SHIFT_DAPSV, 1),230 231 SND_SOC_DAPM_OUTPUT("OUTL"),232 SND_SOC_DAPM_OUTPUT("OUTR"),233 234 SND_SOC_DAPM_INPUT("INL"),235 SND_SOC_DAPM_INPUT("INR"),236 237 SND_SOC_DAPM_ADC("ADC", "Capture", PCM3060_REG64,238 PCM3060_REG_SHIFT_ADPSV, 1),239};240 241static const struct snd_soc_dapm_route pcm3060_dapm_map[] = {242 { "OUTL", NULL, "DAC" },243 { "OUTR", NULL, "DAC" },244 245 { "ADC", NULL, "INL" },246 { "ADC", NULL, "INR" },247};248 249/* soc component */250 251static const struct snd_soc_component_driver pcm3060_soc_comp_driver = {252 .controls = pcm3060_dapm_controls,253 .num_controls = ARRAY_SIZE(pcm3060_dapm_controls),254 .dapm_widgets = pcm3060_dapm_widgets,255 .num_dapm_widgets = ARRAY_SIZE(pcm3060_dapm_widgets),256 .dapm_routes = pcm3060_dapm_map,257 .num_dapm_routes = ARRAY_SIZE(pcm3060_dapm_map),258 .endianness = 1,259};260 261/* regmap */262 263static bool pcm3060_reg_writeable(struct device *dev, unsigned int reg)264{265 return (reg >= PCM3060_REG64);266}267 268static bool pcm3060_reg_readable(struct device *dev, unsigned int reg)269{270 return (reg >= PCM3060_REG64);271}272 273static bool pcm3060_reg_volatile(struct device *dev, unsigned int reg)274{275 /* PCM3060_REG64 is volatile */276 return (reg == PCM3060_REG64);277}278 279static const struct reg_default pcm3060_reg_defaults[] = {280 { PCM3060_REG64, 0xF0 },281 { PCM3060_REG65, 0xFF },282 { PCM3060_REG66, 0xFF },283 { PCM3060_REG67, 0x00 },284 { PCM3060_REG68, 0x00 },285 { PCM3060_REG69, 0x00 },286 { PCM3060_REG70, 0xD7 },287 { PCM3060_REG71, 0xD7 },288 { PCM3060_REG72, 0x00 },289 { PCM3060_REG73, 0x00 },290};291 292const struct regmap_config pcm3060_regmap = {293 .reg_bits = 8,294 .val_bits = 8,295 .writeable_reg = pcm3060_reg_writeable,296 .readable_reg = pcm3060_reg_readable,297 .volatile_reg = pcm3060_reg_volatile,298 .max_register = PCM3060_REG73,299 .reg_defaults = pcm3060_reg_defaults,300 .num_reg_defaults = ARRAY_SIZE(pcm3060_reg_defaults),301 .cache_type = REGCACHE_RBTREE,302};303EXPORT_SYMBOL(pcm3060_regmap);304 305/* device */306 307static void pcm3060_parse_dt(const struct device_node *np,308 struct pcm3060_priv *priv)309{310 priv->out_se = of_property_read_bool(np, "ti,out-single-ended");311}312 313int pcm3060_probe(struct device *dev)314{315 int rc;316 struct pcm3060_priv *priv = dev_get_drvdata(dev);317 318 /* soft reset */319 rc = regmap_update_bits(priv->regmap, PCM3060_REG64,320 PCM3060_REG_MRST, 0);321 if (rc) {322 dev_err(dev, "failed to reset component, rc=%d\n", rc);323 return rc;324 }325 326 if (dev->of_node)327 pcm3060_parse_dt(dev->of_node, priv);328 329 if (priv->out_se)330 regmap_update_bits(priv->regmap, PCM3060_REG64,331 PCM3060_REG_SE, PCM3060_REG_SE);332 333 rc = devm_snd_soc_register_component(dev, &pcm3060_soc_comp_driver,334 pcm3060_dai,335 ARRAY_SIZE(pcm3060_dai));336 if (rc) {337 dev_err(dev, "failed to register component, rc=%d\n", rc);338 return rc;339 }340 341 return 0;342}343EXPORT_SYMBOL(pcm3060_probe);344 345MODULE_DESCRIPTION("PCM3060 codec driver");346MODULE_AUTHOR("Kirill Marinushkin <k.marinushkin@gmail.com>");347MODULE_LICENSE("GPL v2");348