615 lines · c
1// SPDX-License-Identifier: GPL-2.0-only2/*3 * ALSA SoC TLV320AIC23 codec driver4 *5 * Author: Arun KS, <arunks@mistralsolutions.com>6 * Copyright: (C) 2008 Mistral Solutions Pvt Ltd.,7 *8 * Based on sound/soc/codecs/wm8731.c by Richard Purdie9 *10 * Notes:11 * The AIC23 is a driver for a low power stereo audio12 * codec tlv320aic2313 *14 * The machine layer should disable unsupported inputs/outputs by15 * snd_soc_dapm_disable_pin(codec, "LHPOUT"), etc.16 */17 18#include <linux/module.h>19#include <linux/moduleparam.h>20#include <linux/init.h>21#include <linux/delay.h>22#include <linux/pm.h>23#include <linux/regmap.h>24#include <linux/slab.h>25#include <sound/core.h>26#include <sound/pcm.h>27#include <sound/pcm_params.h>28#include <sound/soc.h>29#include <sound/tlv.h>30#include <sound/initval.h>31 32#include "tlv320aic23.h"33 34/*35 * AIC23 register cache36 */37static const struct reg_default tlv320aic23_reg[] = {38 { 0, 0x0097 },39 { 1, 0x0097 },40 { 2, 0x00F9 },41 { 3, 0x00F9 },42 { 4, 0x001A },43 { 5, 0x0004 },44 { 6, 0x0007 },45 { 7, 0x0001 },46 { 8, 0x0020 },47 { 9, 0x0000 },48};49 50const struct regmap_config tlv320aic23_regmap = {51 .reg_bits = 7,52 .val_bits = 9,53 54 .max_register = TLV320AIC23_RESET,55 .reg_defaults = tlv320aic23_reg,56 .num_reg_defaults = ARRAY_SIZE(tlv320aic23_reg),57 .cache_type = REGCACHE_RBTREE,58};59EXPORT_SYMBOL(tlv320aic23_regmap);60 61static const char *rec_src_text[] = { "Line", "Mic" };62static const char *deemph_text[] = {"None", "32Khz", "44.1Khz", "48Khz"};63 64static SOC_ENUM_SINGLE_DECL(rec_src_enum,65 TLV320AIC23_ANLG, 2, rec_src_text);66 67static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls =68SOC_DAPM_ENUM("Input Select", rec_src_enum);69 70static SOC_ENUM_SINGLE_DECL(tlv320aic23_deemph,71 TLV320AIC23_DIGT, 1, deemph_text);72 73static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0);74static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0);75static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv, -1800, 300, 0);76 77static int snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol *kcontrol,78 struct snd_ctl_elem_value *ucontrol)79{80 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);81 u16 val, reg;82 83 val = (ucontrol->value.integer.value[0] & 0x07);84 85 /* linear conversion to userspace86 * 000 = -6db87 * 001 = -9db88 * 010 = -12db89 * 011 = -18db (Min)90 * 100 = 0db (Max)91 */92 val = (val >= 4) ? 4 : (3 - val);93 94 reg = snd_soc_component_read(component, TLV320AIC23_ANLG) & (~0x1C0);95 snd_soc_component_write(component, TLV320AIC23_ANLG, reg | (val << 6));96 97 return 0;98}99 100static int snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol *kcontrol,101 struct snd_ctl_elem_value *ucontrol)102{103 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);104 u16 val;105 106 val = snd_soc_component_read(component, TLV320AIC23_ANLG) & (0x1C0);107 val = val >> 6;108 val = (val >= 4) ? 4 : (3 - val);109 ucontrol->value.integer.value[0] = val;110 return 0;111 112}113 114static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = {115 SOC_DOUBLE_R_TLV("Digital Playback Volume", TLV320AIC23_LCHNVOL,116 TLV320AIC23_RCHNVOL, 0, 127, 0, out_gain_tlv),117 SOC_SINGLE("Digital Playback Switch", TLV320AIC23_DIGT, 3, 1, 1),118 SOC_DOUBLE_R("Line Input Switch", TLV320AIC23_LINVOL,119 TLV320AIC23_RINVOL, 7, 1, 0),120 SOC_DOUBLE_R_TLV("Line Input Volume", TLV320AIC23_LINVOL,121 TLV320AIC23_RINVOL, 0, 31, 0, input_gain_tlv),122 SOC_SINGLE("Mic Input Switch", TLV320AIC23_ANLG, 1, 1, 1),123 SOC_SINGLE("Mic Booster Switch", TLV320AIC23_ANLG, 0, 1, 0),124 SOC_SINGLE_EXT_TLV("Sidetone Volume", TLV320AIC23_ANLG, 6, 4, 0,125 snd_soc_tlv320aic23_get_volsw,126 snd_soc_tlv320aic23_put_volsw, sidetone_vol_tlv),127 SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph),128};129 130/* PGA Mixer controls for Line and Mic switch */131static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = {132 SOC_DAPM_SINGLE("Line Bypass Switch", TLV320AIC23_ANLG, 3, 1, 0),133 SOC_DAPM_SINGLE("Mic Sidetone Switch", TLV320AIC23_ANLG, 5, 1, 0),134 SOC_DAPM_SINGLE("Playback Switch", TLV320AIC23_ANLG, 4, 1, 0),135};136 137static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {138 SND_SOC_DAPM_DAC("DAC", "Playback", TLV320AIC23_PWR, 3, 1),139 SND_SOC_DAPM_ADC("ADC", "Capture", TLV320AIC23_PWR, 2, 1),140 SND_SOC_DAPM_MUX("Capture Source", SND_SOC_NOPM, 0, 0,141 &tlv320aic23_rec_src_mux_controls),142 SND_SOC_DAPM_MIXER("Output Mixer", TLV320AIC23_PWR, 4, 1,143 &tlv320aic23_output_mixer_controls[0],144 ARRAY_SIZE(tlv320aic23_output_mixer_controls)),145 SND_SOC_DAPM_PGA("Line Input", TLV320AIC23_PWR, 0, 1, NULL, 0),146 SND_SOC_DAPM_PGA("Mic Input", TLV320AIC23_PWR, 1, 1, NULL, 0),147 148 SND_SOC_DAPM_OUTPUT("LHPOUT"),149 SND_SOC_DAPM_OUTPUT("RHPOUT"),150 SND_SOC_DAPM_OUTPUT("LOUT"),151 SND_SOC_DAPM_OUTPUT("ROUT"),152 153 SND_SOC_DAPM_INPUT("LLINEIN"),154 SND_SOC_DAPM_INPUT("RLINEIN"),155 156 SND_SOC_DAPM_INPUT("MICIN"),157};158 159static const struct snd_soc_dapm_route tlv320aic23_intercon[] = {160 /* Output Mixer */161 {"Output Mixer", "Line Bypass Switch", "Line Input"},162 {"Output Mixer", "Playback Switch", "DAC"},163 {"Output Mixer", "Mic Sidetone Switch", "Mic Input"},164 165 /* Outputs */166 {"RHPOUT", NULL, "Output Mixer"},167 {"LHPOUT", NULL, "Output Mixer"},168 {"LOUT", NULL, "Output Mixer"},169 {"ROUT", NULL, "Output Mixer"},170 171 /* Inputs */172 {"Line Input", NULL, "LLINEIN"},173 {"Line Input", NULL, "RLINEIN"},174 {"Mic Input", NULL, "MICIN"},175 176 /* input mux */177 {"Capture Source", "Line", "Line Input"},178 {"Capture Source", "Mic", "Mic Input"},179 {"ADC", NULL, "Capture Source"},180 181};182 183/* AIC23 driver data */184struct aic23 {185 struct regmap *regmap;186 int mclk;187 int requested_adc;188 int requested_dac;189};190 191/*192 * Common Crystals used193 * 11.2896 Mhz /128 = *88.2k /192 = 58.8k194 * 12.0000 Mhz /125 = *96k /136 = 88.235K195 * 12.2880 Mhz /128 = *96k /192 = 64k196 * 16.9344 Mhz /128 = 132.3k /192 = *88.2k197 * 18.4320 Mhz /128 = 144k /192 = *96k198 */199 200/*201 * Normal BOSR 0-256/2 = 128, 1-384/2 = 192202 * USB BOSR 0-250/2 = 125, 1-272/2 = 136203 */204static const int bosr_usb_divisor_table[] = {205 128, 125, 192, 136206};207#define LOWER_GROUP ((1<<0) | (1<<1) | (1<<2) | (1<<3) | (1<<6) | (1<<7))208#define UPPER_GROUP ((1<<8) | (1<<9) | (1<<10) | (1<<11) | (1<<15))209static const unsigned short sr_valid_mask[] = {210 LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 0*/211 LOWER_GROUP, /* Usb, bosr - 0*/212 LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 1*/213 UPPER_GROUP, /* Usb, bosr - 1*/214};215/*216 * Every divisor is a factor of 11*12217 */218#define SR_MULT (11*12)219#define A(x) (SR_MULT/x)220static const unsigned char sr_adc_mult_table[] = {221 A(2), A(2), A(12), A(12), 0, 0, A(3), A(1),222 A(2), A(2), A(11), A(11), 0, 0, 0, A(1)223};224static const unsigned char sr_dac_mult_table[] = {225 A(2), A(12), A(2), A(12), 0, 0, A(3), A(1),226 A(2), A(11), A(2), A(11), 0, 0, 0, A(1)227};228 229static unsigned get_score(int adc, int adc_l, int adc_h, int need_adc,230 int dac, int dac_l, int dac_h, int need_dac)231{232 if ((adc >= adc_l) && (adc <= adc_h) &&233 (dac >= dac_l) && (dac <= dac_h)) {234 int diff_adc = need_adc - adc;235 int diff_dac = need_dac - dac;236 return abs(diff_adc) + abs(diff_dac);237 }238 return UINT_MAX;239}240 241static int find_rate(int mclk, u32 need_adc, u32 need_dac)242{243 int i, j;244 int best_i = -1;245 int best_j = -1;246 int best_div = 0;247 unsigned best_score = UINT_MAX;248 int adc_l, adc_h, dac_l, dac_h;249 250 need_adc *= SR_MULT;251 need_dac *= SR_MULT;252 /*253 * rates given are +/- 1/32254 */255 adc_l = need_adc - (need_adc >> 5);256 adc_h = need_adc + (need_adc >> 5);257 dac_l = need_dac - (need_dac >> 5);258 dac_h = need_dac + (need_dac >> 5);259 for (i = 0; i < ARRAY_SIZE(bosr_usb_divisor_table); i++) {260 int base = mclk / bosr_usb_divisor_table[i];261 int mask = sr_valid_mask[i];262 for (j = 0; j < ARRAY_SIZE(sr_adc_mult_table);263 j++, mask >>= 1) {264 int adc;265 int dac;266 int score;267 if ((mask & 1) == 0)268 continue;269 adc = base * sr_adc_mult_table[j];270 dac = base * sr_dac_mult_table[j];271 score = get_score(adc, adc_l, adc_h, need_adc,272 dac, dac_l, dac_h, need_dac);273 if (best_score > score) {274 best_score = score;275 best_i = i;276 best_j = j;277 best_div = 0;278 }279 score = get_score((adc >> 1), adc_l, adc_h, need_adc,280 (dac >> 1), dac_l, dac_h, need_dac);281 /* prefer to have a /2 */282 if ((score != UINT_MAX) && (best_score >= score)) {283 best_score = score;284 best_i = i;285 best_j = j;286 best_div = 1;287 }288 }289 }290 return (best_j << 2) | best_i | (best_div << TLV320AIC23_CLKIN_SHIFT);291}292 293#ifdef DEBUG294static void get_current_sample_rates(struct snd_soc_component *component, int mclk,295 u32 *sample_rate_adc, u32 *sample_rate_dac)296{297 int src = snd_soc_component_read(component, TLV320AIC23_SRATE);298 int sr = (src >> 2) & 0x0f;299 int val = (mclk / bosr_usb_divisor_table[src & 3]);300 int adc = (val * sr_adc_mult_table[sr]) / SR_MULT;301 int dac = (val * sr_dac_mult_table[sr]) / SR_MULT;302 if (src & TLV320AIC23_CLKIN_HALF) {303 adc >>= 1;304 dac >>= 1;305 }306 *sample_rate_adc = adc;307 *sample_rate_dac = dac;308}309#endif310 311static int set_sample_rate_control(struct snd_soc_component *component, int mclk,312 u32 sample_rate_adc, u32 sample_rate_dac)313{314 /* Search for the right sample rate */315 int data = find_rate(mclk, sample_rate_adc, sample_rate_dac);316 if (data < 0) {317 printk(KERN_ERR "%s:Invalid rate %u,%u requested\n",318 __func__, sample_rate_adc, sample_rate_dac);319 return -EINVAL;320 }321 snd_soc_component_write(component, TLV320AIC23_SRATE, data);322#ifdef DEBUG323 {324 u32 adc, dac;325 get_current_sample_rates(component, mclk, &adc, &dac);326 printk(KERN_DEBUG "actual samplerate = %u,%u reg=%x\n",327 adc, dac, data);328 }329#endif330 return 0;331}332 333static int tlv320aic23_hw_params(struct snd_pcm_substream *substream,334 struct snd_pcm_hw_params *params,335 struct snd_soc_dai *dai)336{337 struct snd_soc_component *component = dai->component;338 u16 iface_reg;339 int ret;340 struct aic23 *aic23 = snd_soc_component_get_drvdata(component);341 u32 sample_rate_adc = aic23->requested_adc;342 u32 sample_rate_dac = aic23->requested_dac;343 u32 sample_rate = params_rate(params);344 345 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {346 aic23->requested_dac = sample_rate_dac = sample_rate;347 if (!sample_rate_adc)348 sample_rate_adc = sample_rate;349 } else {350 aic23->requested_adc = sample_rate_adc = sample_rate;351 if (!sample_rate_dac)352 sample_rate_dac = sample_rate;353 }354 ret = set_sample_rate_control(component, aic23->mclk, sample_rate_adc,355 sample_rate_dac);356 if (ret < 0)357 return ret;358 359 iface_reg = snd_soc_component_read(component, TLV320AIC23_DIGT_FMT) & ~(0x03 << 2);360 361 switch (params_width(params)) {362 case 16:363 break;364 case 20:365 iface_reg |= (0x01 << 2);366 break;367 case 24:368 iface_reg |= (0x02 << 2);369 break;370 case 32:371 iface_reg |= (0x03 << 2);372 break;373 }374 snd_soc_component_write(component, TLV320AIC23_DIGT_FMT, iface_reg);375 376 return 0;377}378 379static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream,380 struct snd_soc_dai *dai)381{382 struct snd_soc_component *component = dai->component;383 384 /* set active */385 snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x0001);386 387 return 0;388}389 390static void tlv320aic23_shutdown(struct snd_pcm_substream *substream,391 struct snd_soc_dai *dai)392{393 struct snd_soc_component *component = dai->component;394 struct aic23 *aic23 = snd_soc_component_get_drvdata(component);395 396 /* deactivate */397 if (!snd_soc_component_active(component)) {398 udelay(50);399 snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x0);400 }401 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)402 aic23->requested_dac = 0;403 else404 aic23->requested_adc = 0;405}406 407static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute, int direction)408{409 struct snd_soc_component *component = dai->component;410 u16 reg;411 412 reg = snd_soc_component_read(component, TLV320AIC23_DIGT);413 if (mute)414 reg |= TLV320AIC23_DACM_MUTE;415 416 else417 reg &= ~TLV320AIC23_DACM_MUTE;418 419 snd_soc_component_write(component, TLV320AIC23_DIGT, reg);420 421 return 0;422}423 424static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai,425 unsigned int fmt)426{427 struct snd_soc_component *component = codec_dai->component;428 u16 iface_reg;429 430 iface_reg = snd_soc_component_read(component, TLV320AIC23_DIGT_FMT) & (~0x03);431 432 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {433 case SND_SOC_DAIFMT_CBP_CFP:434 iface_reg |= TLV320AIC23_MS_MASTER;435 break;436 case SND_SOC_DAIFMT_CBC_CFC:437 iface_reg &= ~TLV320AIC23_MS_MASTER;438 break;439 default:440 return -EINVAL;441 442 }443 444 /* interface format */445 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {446 case SND_SOC_DAIFMT_I2S:447 iface_reg |= TLV320AIC23_FOR_I2S;448 break;449 case SND_SOC_DAIFMT_DSP_A:450 iface_reg |= TLV320AIC23_LRP_ON;451 fallthrough;452 case SND_SOC_DAIFMT_DSP_B:453 iface_reg |= TLV320AIC23_FOR_DSP;454 break;455 case SND_SOC_DAIFMT_RIGHT_J:456 break;457 case SND_SOC_DAIFMT_LEFT_J:458 iface_reg |= TLV320AIC23_FOR_LJUST;459 break;460 default:461 return -EINVAL;462 463 }464 465 snd_soc_component_write(component, TLV320AIC23_DIGT_FMT, iface_reg);466 467 return 0;468}469 470static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai,471 int clk_id, unsigned int freq, int dir)472{473 struct aic23 *aic23 = snd_soc_dai_get_drvdata(codec_dai);474 aic23->mclk = freq;475 return 0;476}477 478static int tlv320aic23_set_bias_level(struct snd_soc_component *component,479 enum snd_soc_bias_level level)480{481 u16 reg = snd_soc_component_read(component, TLV320AIC23_PWR) & 0x17f;482 483 switch (level) {484 case SND_SOC_BIAS_ON:485 /* vref/mid, osc on, dac unmute */486 reg &= ~(TLV320AIC23_DEVICE_PWR_OFF | TLV320AIC23_OSC_OFF | \487 TLV320AIC23_DAC_OFF);488 snd_soc_component_write(component, TLV320AIC23_PWR, reg);489 break;490 case SND_SOC_BIAS_PREPARE:491 break;492 case SND_SOC_BIAS_STANDBY:493 /* everything off except vref/vmid, */494 snd_soc_component_write(component, TLV320AIC23_PWR,495 reg | TLV320AIC23_CLK_OFF);496 break;497 case SND_SOC_BIAS_OFF:498 /* everything off, dac mute, inactive */499 snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x0);500 snd_soc_component_write(component, TLV320AIC23_PWR, 0x1ff);501 break;502 }503 return 0;504}505 506#define AIC23_RATES SNDRV_PCM_RATE_8000_96000507#define AIC23_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \508 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)509 510static const struct snd_soc_dai_ops tlv320aic23_dai_ops = {511 .prepare = tlv320aic23_pcm_prepare,512 .hw_params = tlv320aic23_hw_params,513 .shutdown = tlv320aic23_shutdown,514 .mute_stream = tlv320aic23_mute,515 .set_fmt = tlv320aic23_set_dai_fmt,516 .set_sysclk = tlv320aic23_set_dai_sysclk,517 .no_capture_mute = 1,518};519 520static struct snd_soc_dai_driver tlv320aic23_dai = {521 .name = "tlv320aic23-hifi",522 .playback = {523 .stream_name = "Playback",524 .channels_min = 2,525 .channels_max = 2,526 .rates = AIC23_RATES,527 .formats = AIC23_FORMATS,},528 .capture = {529 .stream_name = "Capture",530 .channels_min = 2,531 .channels_max = 2,532 .rates = AIC23_RATES,533 .formats = AIC23_FORMATS,},534 .ops = &tlv320aic23_dai_ops,535};536 537static int tlv320aic23_resume(struct snd_soc_component *component)538{539 struct aic23 *aic23 = snd_soc_component_get_drvdata(component);540 regcache_mark_dirty(aic23->regmap);541 regcache_sync(aic23->regmap);542 543 return 0;544}545 546static int tlv320aic23_component_probe(struct snd_soc_component *component)547{548 /* Reset codec */549 snd_soc_component_write(component, TLV320AIC23_RESET, 0);550 551 snd_soc_component_write(component, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K);552 553 /* Unmute input */554 snd_soc_component_update_bits(component, TLV320AIC23_LINVOL,555 TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED);556 557 snd_soc_component_update_bits(component, TLV320AIC23_RINVOL,558 TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED);559 560 snd_soc_component_update_bits(component, TLV320AIC23_ANLG,561 TLV320AIC23_BYPASS_ON | TLV320AIC23_MICM_MUTED,562 0);563 564 /* Default output volume */565 snd_soc_component_write(component, TLV320AIC23_LCHNVOL,566 TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK);567 snd_soc_component_write(component, TLV320AIC23_RCHNVOL,568 TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK);569 570 snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x1);571 572 return 0;573}574 575static const struct snd_soc_component_driver soc_component_dev_tlv320aic23 = {576 .probe = tlv320aic23_component_probe,577 .resume = tlv320aic23_resume,578 .set_bias_level = tlv320aic23_set_bias_level,579 .controls = tlv320aic23_snd_controls,580 .num_controls = ARRAY_SIZE(tlv320aic23_snd_controls),581 .dapm_widgets = tlv320aic23_dapm_widgets,582 .num_dapm_widgets = ARRAY_SIZE(tlv320aic23_dapm_widgets),583 .dapm_routes = tlv320aic23_intercon,584 .num_dapm_routes = ARRAY_SIZE(tlv320aic23_intercon),585 .suspend_bias_off = 1,586 .idle_bias_on = 1,587 .use_pmdown_time = 1,588 .endianness = 1,589};590 591int tlv320aic23_probe(struct device *dev, struct regmap *regmap)592{593 struct aic23 *aic23;594 595 if (IS_ERR(regmap))596 return PTR_ERR(regmap);597 598 aic23 = devm_kzalloc(dev, sizeof(struct aic23), GFP_KERNEL);599 if (aic23 == NULL)600 return -ENOMEM;601 602 aic23->regmap = regmap;603 604 dev_set_drvdata(dev, aic23);605 606 return devm_snd_soc_register_component(dev,607 &soc_component_dev_tlv320aic23,608 &tlv320aic23_dai, 1);609}610EXPORT_SYMBOL(tlv320aic23_probe);611 612MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver");613MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");614MODULE_LICENSE("GPL");615