561 lines · c
1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * AD193X Audio Codec driver supporting AD1936/7/8/94 *5 * Copyright 2010 Analog Devices Inc.6 */7 8#include <linux/module.h>9#include <linux/kernel.h>10#include <linux/device.h>11#include <linux/regmap.h>12#include <linux/slab.h>13#include <sound/core.h>14#include <sound/pcm.h>15#include <sound/pcm_params.h>16#include <sound/initval.h>17#include <sound/soc.h>18#include <sound/tlv.h>19 20#include "ad193x.h"21 22/* codec private data */23struct ad193x_priv {24 struct regmap *regmap;25 enum ad193x_type type;26 int sysclk;27};28 29/*30 * AD193X volume/mute/de-emphasis etc. controls31 */32static const char * const ad193x_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"};33 34static SOC_ENUM_SINGLE_DECL(ad193x_deemp_enum, AD193X_DAC_CTRL2, 1,35 ad193x_deemp);36 37static const DECLARE_TLV_DB_MINMAX(adau193x_tlv, -9563, 0);38 39static const unsigned int ad193x_sb[] = {32};40 41static struct snd_pcm_hw_constraint_list constr = {42 .list = ad193x_sb,43 .count = ARRAY_SIZE(ad193x_sb),44};45 46static const struct snd_kcontrol_new ad193x_snd_controls[] = {47 /* DAC volume control */48 SOC_DOUBLE_R_TLV("DAC1 Volume", AD193X_DAC_L1_VOL,49 AD193X_DAC_R1_VOL, 0, 0xFF, 1, adau193x_tlv),50 SOC_DOUBLE_R_TLV("DAC2 Volume", AD193X_DAC_L2_VOL,51 AD193X_DAC_R2_VOL, 0, 0xFF, 1, adau193x_tlv),52 SOC_DOUBLE_R_TLV("DAC3 Volume", AD193X_DAC_L3_VOL,53 AD193X_DAC_R3_VOL, 0, 0xFF, 1, adau193x_tlv),54 SOC_DOUBLE_R_TLV("DAC4 Volume", AD193X_DAC_L4_VOL,55 AD193X_DAC_R4_VOL, 0, 0xFF, 1, adau193x_tlv),56 57 /* DAC switch control */58 SOC_DOUBLE("DAC1 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL1_MUTE,59 AD193X_DACR1_MUTE, 1, 1),60 SOC_DOUBLE("DAC2 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL2_MUTE,61 AD193X_DACR2_MUTE, 1, 1),62 SOC_DOUBLE("DAC3 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL3_MUTE,63 AD193X_DACR3_MUTE, 1, 1),64 SOC_DOUBLE("DAC4 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL4_MUTE,65 AD193X_DACR4_MUTE, 1, 1),66 67 /* DAC de-emphasis */68 SOC_ENUM("Playback Deemphasis", ad193x_deemp_enum),69};70 71static const struct snd_kcontrol_new ad193x_adc_snd_controls[] = {72 /* ADC switch control */73 SOC_DOUBLE("ADC1 Switch", AD193X_ADC_CTRL0, AD193X_ADCL1_MUTE,74 AD193X_ADCR1_MUTE, 1, 1),75 SOC_DOUBLE("ADC2 Switch", AD193X_ADC_CTRL0, AD193X_ADCL2_MUTE,76 AD193X_ADCR2_MUTE, 1, 1),77 78 /* ADC high-pass filter */79 SOC_SINGLE("ADC High Pass Filter Switch", AD193X_ADC_CTRL0,80 AD193X_ADC_HIGHPASS_FILTER, 1, 0),81};82 83static const struct snd_soc_dapm_widget ad193x_dapm_widgets[] = {84 SND_SOC_DAPM_DAC("DAC", "Playback", SND_SOC_NOPM, 0, 0),85 SND_SOC_DAPM_PGA("DAC Output", AD193X_DAC_CTRL0, 0, 1, NULL, 0),86 SND_SOC_DAPM_SUPPLY("PLL_PWR", AD193X_PLL_CLK_CTRL0, 0, 1, NULL, 0),87 SND_SOC_DAPM_SUPPLY("SYSCLK", AD193X_PLL_CLK_CTRL0, 7, 0, NULL, 0),88 SND_SOC_DAPM_VMID("VMID"),89 SND_SOC_DAPM_OUTPUT("DAC1OUT"),90 SND_SOC_DAPM_OUTPUT("DAC2OUT"),91 SND_SOC_DAPM_OUTPUT("DAC3OUT"),92 SND_SOC_DAPM_OUTPUT("DAC4OUT"),93};94 95static const struct snd_soc_dapm_widget ad193x_adc_widgets[] = {96 SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0),97 SND_SOC_DAPM_SUPPLY("ADC_PWR", AD193X_ADC_CTRL0, 0, 1, NULL, 0),98 SND_SOC_DAPM_INPUT("ADC1IN"),99 SND_SOC_DAPM_INPUT("ADC2IN"),100};101 102static int ad193x_check_pll(struct snd_soc_dapm_widget *source,103 struct snd_soc_dapm_widget *sink)104{105 struct snd_soc_component *component = snd_soc_dapm_to_component(source->dapm);106 struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);107 108 return !!ad193x->sysclk;109}110 111static const struct snd_soc_dapm_route audio_paths[] = {112 { "DAC", NULL, "SYSCLK" },113 { "DAC Output", NULL, "DAC" },114 { "DAC Output", NULL, "VMID" },115 { "DAC1OUT", NULL, "DAC Output" },116 { "DAC2OUT", NULL, "DAC Output" },117 { "DAC3OUT", NULL, "DAC Output" },118 { "DAC4OUT", NULL, "DAC Output" },119 { "SYSCLK", NULL, "PLL_PWR", &ad193x_check_pll },120};121 122static const struct snd_soc_dapm_route ad193x_adc_audio_paths[] = {123 { "ADC", NULL, "SYSCLK" },124 { "ADC", NULL, "ADC_PWR" },125 { "ADC", NULL, "ADC1IN" },126 { "ADC", NULL, "ADC2IN" },127};128 129static inline bool ad193x_has_adc(const struct ad193x_priv *ad193x)130{131 switch (ad193x->type) {132 case AD1933:133 case AD1934:134 return false;135 default:136 break;137 }138 139 return true;140}141 142/*143 * DAI ops entries144 */145 146static int ad193x_mute(struct snd_soc_dai *dai, int mute, int direction)147{148 struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(dai->component);149 150 if (mute)151 regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,152 AD193X_DAC_MASTER_MUTE,153 AD193X_DAC_MASTER_MUTE);154 else155 regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,156 AD193X_DAC_MASTER_MUTE, 0);157 158 return 0;159}160 161static int ad193x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,162 unsigned int rx_mask, int slots, int width)163{164 struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(dai->component);165 unsigned int channels;166 167 switch (slots) {168 case 2:169 channels = AD193X_2_CHANNELS;170 break;171 case 4:172 channels = AD193X_4_CHANNELS;173 break;174 case 8:175 channels = AD193X_8_CHANNELS;176 break;177 case 16:178 channels = AD193X_16_CHANNELS;179 break;180 default:181 return -EINVAL;182 }183 184 regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1,185 AD193X_DAC_CHAN_MASK, channels << AD193X_DAC_CHAN_SHFT);186 if (ad193x_has_adc(ad193x))187 regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2,188 AD193X_ADC_CHAN_MASK,189 channels << AD193X_ADC_CHAN_SHFT);190 191 return 0;192}193 194static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,195 unsigned int fmt)196{197 struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(codec_dai->component);198 unsigned int adc_serfmt = 0;199 unsigned int dac_serfmt = 0;200 unsigned int adc_fmt = 0;201 unsigned int dac_fmt = 0;202 203 /* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S204 * with TDM), ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A) and DAC I2S mode205 * (SND_SOC_DAIFMT_I2S)206 */207 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {208 case SND_SOC_DAIFMT_I2S:209 adc_serfmt |= AD193X_ADC_SERFMT_TDM;210 dac_serfmt |= AD193X_DAC_SERFMT_STEREO;211 break;212 case SND_SOC_DAIFMT_DSP_A:213 adc_serfmt |= AD193X_ADC_SERFMT_AUX;214 dac_serfmt |= AD193X_DAC_SERFMT_TDM;215 break;216 default:217 if (ad193x_has_adc(ad193x))218 return -EINVAL;219 }220 221 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {222 case SND_SOC_DAIFMT_NB_NF: /* normal bit clock + frame */223 break;224 case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */225 adc_fmt |= AD193X_ADC_LEFT_HIGH;226 dac_fmt |= AD193X_DAC_LEFT_HIGH;227 break;228 case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */229 adc_fmt |= AD193X_ADC_BCLK_INV;230 dac_fmt |= AD193X_DAC_BCLK_INV;231 break;232 case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */233 adc_fmt |= AD193X_ADC_LEFT_HIGH;234 adc_fmt |= AD193X_ADC_BCLK_INV;235 dac_fmt |= AD193X_DAC_LEFT_HIGH;236 dac_fmt |= AD193X_DAC_BCLK_INV;237 break;238 default:239 return -EINVAL;240 }241 242 /* For DSP_*, LRCLK's polarity must be inverted */243 if (fmt & SND_SOC_DAIFMT_DSP_A)244 dac_fmt ^= AD193X_DAC_LEFT_HIGH;245 246 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {247 case SND_SOC_DAIFMT_CBP_CFP:248 adc_fmt |= AD193X_ADC_LCR_MASTER;249 adc_fmt |= AD193X_ADC_BCLK_MASTER;250 dac_fmt |= AD193X_DAC_LCR_MASTER;251 dac_fmt |= AD193X_DAC_BCLK_MASTER;252 break;253 case SND_SOC_DAIFMT_CBC_CFP:254 adc_fmt |= AD193X_ADC_LCR_MASTER;255 dac_fmt |= AD193X_DAC_LCR_MASTER;256 break;257 case SND_SOC_DAIFMT_CBP_CFC:258 adc_fmt |= AD193X_ADC_BCLK_MASTER;259 dac_fmt |= AD193X_DAC_BCLK_MASTER;260 break;261 case SND_SOC_DAIFMT_CBC_CFC:262 break;263 default:264 return -EINVAL;265 }266 267 if (ad193x_has_adc(ad193x)) {268 regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL1,269 AD193X_ADC_SERFMT_MASK, adc_serfmt);270 regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2,271 AD193X_ADC_FMT_MASK, adc_fmt);272 }273 regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL0,274 AD193X_DAC_SERFMT_MASK, dac_serfmt);275 regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1,276 AD193X_DAC_FMT_MASK, dac_fmt);277 278 return 0;279}280 281static int ad193x_set_dai_sysclk(struct snd_soc_dai *codec_dai,282 int clk_id, unsigned int freq, int dir)283{284 struct snd_soc_component *component = codec_dai->component;285 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);286 struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);287 288 if (clk_id == AD193X_SYSCLK_MCLK) {289 /* MCLK must be 512 x fs */290 if (dir == SND_SOC_CLOCK_OUT || freq != 24576000)291 return -EINVAL;292 293 regmap_update_bits(ad193x->regmap, AD193X_PLL_CLK_CTRL1,294 AD193X_PLL_SRC_MASK,295 AD193X_PLL_DAC_SRC_MCLK |296 AD193X_PLL_CLK_SRC_MCLK);297 298 snd_soc_dapm_sync(dapm);299 return 0;300 }301 switch (freq) {302 case 12288000:303 case 18432000:304 case 24576000:305 case 36864000:306 ad193x->sysclk = freq;307 return 0;308 }309 return -EINVAL;310}311 312static int ad193x_hw_params(struct snd_pcm_substream *substream,313 struct snd_pcm_hw_params *params,314 struct snd_soc_dai *dai)315{316 int word_len = 0, master_rate = 0;317 struct snd_soc_component *component = dai->component;318 struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);319 bool is_playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;320 u8 dacc0;321 322 dev_dbg(dai->dev, "%s() rate=%u format=%#x width=%u channels=%u\n",323 __func__, params_rate(params), params_format(params),324 params_width(params), params_channels(params));325 326 327 /* bit size */328 switch (params_width(params)) {329 case 16:330 word_len = 3;331 break;332 case 20:333 word_len = 1;334 break;335 case 24:336 case 32:337 word_len = 0;338 break;339 }340 341 switch (ad193x->sysclk) {342 case 12288000:343 master_rate = AD193X_PLL_INPUT_256;344 break;345 case 18432000:346 master_rate = AD193X_PLL_INPUT_384;347 break;348 case 24576000:349 master_rate = AD193X_PLL_INPUT_512;350 break;351 case 36864000:352 master_rate = AD193X_PLL_INPUT_768;353 break;354 }355 356 if (is_playback) {357 switch (params_rate(params)) {358 case 48000:359 dacc0 = AD193X_DAC_SR_48;360 break;361 case 96000:362 dacc0 = AD193X_DAC_SR_96;363 break;364 case 192000:365 dacc0 = AD193X_DAC_SR_192;366 break;367 default:368 dev_err(dai->dev, "invalid sampling rate: %d\n", params_rate(params));369 return -EINVAL;370 }371 372 regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL0, AD193X_DAC_SR_MASK, dacc0);373 }374 375 regmap_update_bits(ad193x->regmap, AD193X_PLL_CLK_CTRL0,376 AD193X_PLL_INPUT_MASK, master_rate);377 378 regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,379 AD193X_DAC_WORD_LEN_MASK,380 word_len << AD193X_DAC_WORD_LEN_SHFT);381 382 if (ad193x_has_adc(ad193x))383 regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL1,384 AD193X_ADC_WORD_LEN_MASK, word_len);385 386 return 0;387}388 389static int ad193x_startup(struct snd_pcm_substream *substream,390 struct snd_soc_dai *dai)391{392 return snd_pcm_hw_constraint_list(substream->runtime, 0,393 SNDRV_PCM_HW_PARAM_SAMPLE_BITS,394 &constr);395}396 397static const struct snd_soc_dai_ops ad193x_dai_ops = {398 .startup = ad193x_startup,399 .hw_params = ad193x_hw_params,400 .mute_stream = ad193x_mute,401 .set_tdm_slot = ad193x_set_tdm_slot,402 .set_sysclk = ad193x_set_dai_sysclk,403 .set_fmt = ad193x_set_dai_fmt,404 .no_capture_mute = 1,405};406 407/* codec DAI instance */408static struct snd_soc_dai_driver ad193x_dai = {409 .name = "ad193x-hifi",410 .playback = {411 .stream_name = "Playback",412 .channels_min = 2,413 .channels_max = 8,414 .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000,415 .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |416 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,417 },418 .capture = {419 .stream_name = "Capture",420 .channels_min = 2,421 .channels_max = 4,422 .rates = SNDRV_PCM_RATE_48000,423 .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |424 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,425 },426 .ops = &ad193x_dai_ops,427};428 429/* codec DAI instance for DAC only */430static struct snd_soc_dai_driver ad193x_no_adc_dai = {431 .name = "ad193x-hifi",432 .playback = {433 .stream_name = "Playback",434 .channels_min = 2,435 .channels_max = 8,436 .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000,437 .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |438 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,439 },440 .ops = &ad193x_dai_ops,441};442 443/* codec register values to set after reset */444static void ad193x_reg_default_init(struct ad193x_priv *ad193x)445{446 static const struct reg_sequence reg_init[] = {447 { 0, 0x99 }, /* PLL_CLK_CTRL0: pll input: mclki/xi 12.288Mhz */448 { 1, 0x04 }, /* PLL_CLK_CTRL1: no on-chip Vref */449 { 2, 0x40 }, /* DAC_CTRL0: TDM mode */450 { 3, 0x00 }, /* DAC_CTRL1: reset */451 { 4, 0x1A }, /* DAC_CTRL2: 48kHz de-emphasis, unmute dac */452 { 5, 0x00 }, /* DAC_CHNL_MUTE: unmute DAC channels */453 { 6, 0x00 }, /* DAC_L1_VOL: no attenuation */454 { 7, 0x00 }, /* DAC_R1_VOL: no attenuation */455 { 8, 0x00 }, /* DAC_L2_VOL: no attenuation */456 { 9, 0x00 }, /* DAC_R2_VOL: no attenuation */457 { 10, 0x00 }, /* DAC_L3_VOL: no attenuation */458 { 11, 0x00 }, /* DAC_R3_VOL: no attenuation */459 { 12, 0x00 }, /* DAC_L4_VOL: no attenuation */460 { 13, 0x00 }, /* DAC_R4_VOL: no attenuation */461 };462 static const struct reg_sequence reg_adc_init[] = {463 { 14, 0x03 }, /* ADC_CTRL0: high-pass filter enable */464 { 15, 0x43 }, /* ADC_CTRL1: sata delay=1, adc aux mode */465 { 16, 0x00 }, /* ADC_CTRL2: reset */466 };467 468 regmap_multi_reg_write(ad193x->regmap, reg_init, ARRAY_SIZE(reg_init));469 470 if (ad193x_has_adc(ad193x)) {471 regmap_multi_reg_write(ad193x->regmap, reg_adc_init,472 ARRAY_SIZE(reg_adc_init));473 }474}475 476static int ad193x_component_probe(struct snd_soc_component *component)477{478 struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);479 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);480 int num, ret;481 482 /* default setting for ad193x */483 ad193x_reg_default_init(ad193x);484 485 /* adc only */486 if (ad193x_has_adc(ad193x)) {487 /* add adc controls */488 num = ARRAY_SIZE(ad193x_adc_snd_controls);489 ret = snd_soc_add_component_controls(component,490 ad193x_adc_snd_controls,491 num);492 if (ret)493 return ret;494 495 /* add adc widgets */496 num = ARRAY_SIZE(ad193x_adc_widgets);497 ret = snd_soc_dapm_new_controls(dapm,498 ad193x_adc_widgets,499 num);500 if (ret)501 return ret;502 503 /* add adc routes */504 num = ARRAY_SIZE(ad193x_adc_audio_paths);505 ret = snd_soc_dapm_add_routes(dapm,506 ad193x_adc_audio_paths,507 num);508 if (ret)509 return ret;510 }511 512 return 0;513}514 515static const struct snd_soc_component_driver soc_component_dev_ad193x = {516 .probe = ad193x_component_probe,517 .controls = ad193x_snd_controls,518 .num_controls = ARRAY_SIZE(ad193x_snd_controls),519 .dapm_widgets = ad193x_dapm_widgets,520 .num_dapm_widgets = ARRAY_SIZE(ad193x_dapm_widgets),521 .dapm_routes = audio_paths,522 .num_dapm_routes = ARRAY_SIZE(audio_paths),523 .idle_bias_on = 1,524 .use_pmdown_time = 1,525 .endianness = 1,526};527 528const struct regmap_config ad193x_regmap_config = {529 .max_register = AD193X_NUM_REGS - 1,530};531EXPORT_SYMBOL_GPL(ad193x_regmap_config);532 533int ad193x_probe(struct device *dev, struct regmap *regmap,534 enum ad193x_type type)535{536 struct ad193x_priv *ad193x;537 538 if (IS_ERR(regmap))539 return PTR_ERR(regmap);540 541 ad193x = devm_kzalloc(dev, sizeof(*ad193x), GFP_KERNEL);542 if (ad193x == NULL)543 return -ENOMEM;544 545 ad193x->regmap = regmap;546 ad193x->type = type;547 548 dev_set_drvdata(dev, ad193x);549 550 if (ad193x_has_adc(ad193x))551 return devm_snd_soc_register_component(dev, &soc_component_dev_ad193x,552 &ad193x_dai, 1);553 return devm_snd_soc_register_component(dev, &soc_component_dev_ad193x,554 &ad193x_no_adc_dai, 1);555}556EXPORT_SYMBOL_GPL(ad193x_probe);557 558MODULE_DESCRIPTION("ASoC ad193x driver");559MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");560MODULE_LICENSE("GPL");561