581 lines · c
1// SPDX-License-Identifier: GPL-2.0-only2//3// Copyright (c) 2020, The Linux Foundation. All rights reserved.4//5// sc7180.c -- ALSA SoC Machine driver for SC71806 7#include <dt-bindings/sound/sc7180-lpass.h>8#include <dt-bindings/sound/qcom,q6afe.h>9#include <linux/gpio/consumer.h>10#include <linux/module.h>11#include <linux/of.h>12#include <linux/platform_device.h>13#include <sound/core.h>14#include <sound/jack.h>15#include <sound/pcm.h>16#include <sound/soc.h>17#include <uapi/linux/input-event-codes.h>18 19#include "../codecs/rt5682.h"20#include "../codecs/rt5682s.h"21#include "common.h"22#include "qdsp6/q6afe.h"23 24#define DEFAULT_MCLK_RATE 1920000025#define MI2S_BCLK_RATE 153600026#define RT5682_PLL1_FREQ (48000 * 512)27 28#define DRIVER_NAME "SC7180"29 30struct sc7180_snd_data {31 struct snd_soc_card card;32 u32 pri_mi2s_clk_count;33 struct snd_soc_jack hs_jack;34 struct snd_soc_jack hdmi_jack;35 struct gpio_desc *dmic_sel;36 int dmic_switch;37};38 39static void sc7180_jack_free(struct snd_jack *jack)40{41 struct snd_soc_component *component = jack->private_data;42 43 snd_soc_component_set_jack(component, NULL, NULL);44}45 46static struct snd_soc_jack_pin sc7180_jack_pins[] = {47 {48 .pin = "Headphone Jack",49 .mask = SND_JACK_HEADPHONE,50 },51 {52 .pin = "Headset Mic",53 .mask = SND_JACK_MICROPHONE,54 },55};56 57static int sc7180_headset_init(struct snd_soc_pcm_runtime *rtd)58{59 struct snd_soc_card *card = rtd->card;60 struct sc7180_snd_data *pdata = snd_soc_card_get_drvdata(card);61 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);62 struct snd_soc_component *component = codec_dai->component;63 struct snd_jack *jack;64 int rval;65 66 rval = snd_soc_card_jack_new_pins(card, "Headset Jack",67 SND_JACK_HEADSET |68 SND_JACK_HEADPHONE |69 SND_JACK_BTN_0 | SND_JACK_BTN_1 |70 SND_JACK_BTN_2 | SND_JACK_BTN_3,71 &pdata->hs_jack,72 sc7180_jack_pins,73 ARRAY_SIZE(sc7180_jack_pins));74 75 if (rval < 0) {76 dev_err(card->dev, "Unable to add Headset Jack\n");77 return rval;78 }79 80 jack = pdata->hs_jack.jack;81 82 snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);83 snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);84 snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);85 snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);86 87 jack->private_data = component;88 jack->private_free = sc7180_jack_free;89 90 return snd_soc_component_set_jack(component, &pdata->hs_jack, NULL);91}92 93static int sc7180_hdmi_init(struct snd_soc_pcm_runtime *rtd)94{95 struct snd_soc_card *card = rtd->card;96 struct sc7180_snd_data *pdata = snd_soc_card_get_drvdata(card);97 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);98 struct snd_soc_component *component = codec_dai->component;99 struct snd_jack *jack;100 int rval;101 102 rval = snd_soc_card_jack_new(103 card, "HDMI Jack",104 SND_JACK_LINEOUT,105 &pdata->hdmi_jack);106 107 if (rval < 0) {108 dev_err(card->dev, "Unable to add HDMI Jack\n");109 return rval;110 }111 112 jack = pdata->hdmi_jack.jack;113 jack->private_data = component;114 jack->private_free = sc7180_jack_free;115 116 return snd_soc_component_set_jack(component, &pdata->hdmi_jack, NULL);117}118 119static int sc7180_init(struct snd_soc_pcm_runtime *rtd)120{121 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);122 123 switch (cpu_dai->id) {124 case MI2S_PRIMARY:125 return sc7180_headset_init(rtd);126 case MI2S_SECONDARY:127 return 0;128 case LPASS_DP_RX:129 return sc7180_hdmi_init(rtd);130 default:131 dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,132 cpu_dai->id);133 return -EINVAL;134 }135 return 0;136}137 138static int sc7180_qdsp_init(struct snd_soc_pcm_runtime *rtd)139{140 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);141 142 switch (cpu_dai->id) {143 case PRIMARY_MI2S_RX:144 return sc7180_headset_init(rtd);145 case PRIMARY_MI2S_TX:146 case TERTIARY_MI2S_RX:147 return 0;148 case DISPLAY_PORT_RX:149 return sc7180_hdmi_init(rtd);150 default:151 dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,152 cpu_dai->id);153 return -EINVAL;154 }155 return 0;156}157 158static int sc7180_startup_realtek_codec(struct snd_soc_pcm_runtime *rtd)159{160 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);161 int pll_id, pll_source, pll_in, pll_out, clk_id, ret;162 163 if (!strcmp(codec_dai->name, "rt5682-aif1")) {164 pll_source = RT5682_PLL1_S_MCLK;165 pll_id = 0;166 clk_id = RT5682_SCLK_S_PLL1;167 pll_out = RT5682_PLL1_FREQ;168 pll_in = DEFAULT_MCLK_RATE;169 } else if (!strcmp(codec_dai->name, "rt5682s-aif1")) {170 pll_source = RT5682S_PLL_S_MCLK;171 pll_id = RT5682S_PLL2;172 clk_id = RT5682S_SCLK_S_PLL2;173 pll_out = RT5682_PLL1_FREQ;174 pll_in = DEFAULT_MCLK_RATE;175 } else {176 return 0;177 }178 snd_soc_dai_set_fmt(codec_dai,179 SND_SOC_DAIFMT_BC_FC |180 SND_SOC_DAIFMT_NB_NF |181 SND_SOC_DAIFMT_I2S);182 183 /* Configure PLL1 for codec */184 ret = snd_soc_dai_set_pll(codec_dai, pll_id, pll_source,185 pll_in, pll_out);186 if (ret) {187 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);188 return ret;189 }190 191 /* Configure sysclk for codec */192 ret = snd_soc_dai_set_sysclk(codec_dai, clk_id, pll_out,193 SND_SOC_CLOCK_IN);194 if (ret)195 dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n",196 ret);197 198 return ret;199}200 201static int sc7180_snd_startup(struct snd_pcm_substream *substream)202{203 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);204 struct snd_soc_card *card = rtd->card;205 struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card);206 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);207 int ret;208 209 switch (cpu_dai->id) {210 case MI2S_PRIMARY:211 if (++data->pri_mi2s_clk_count == 1) {212 snd_soc_dai_set_sysclk(cpu_dai,213 LPASS_MCLK0,214 DEFAULT_MCLK_RATE,215 SNDRV_PCM_STREAM_PLAYBACK);216 }217 218 ret = sc7180_startup_realtek_codec(rtd);219 if (ret)220 return ret;221 222 break;223 case MI2S_SECONDARY:224 break;225 case LPASS_DP_RX:226 break;227 default:228 dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,229 cpu_dai->id);230 return -EINVAL;231 }232 return 0;233}234 235static int sc7180_qdsp_snd_startup(struct snd_pcm_substream *substream)236{237 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);238 struct snd_soc_card *card = rtd->card;239 struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card);240 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);241 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);242 int ret;243 244 switch (cpu_dai->id) {245 case PRIMARY_MI2S_RX:246 case PRIMARY_MI2S_TX:247 if (++data->pri_mi2s_clk_count == 1) {248 snd_soc_dai_set_sysclk(cpu_dai,249 Q6AFE_LPASS_CLK_ID_MCLK_1,250 DEFAULT_MCLK_RATE,251 SNDRV_PCM_STREAM_PLAYBACK);252 snd_soc_dai_set_sysclk(cpu_dai,253 Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,254 MI2S_BCLK_RATE,255 SNDRV_PCM_STREAM_PLAYBACK);256 }257 258 snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_BP_FP);259 260 ret = sc7180_startup_realtek_codec(rtd);261 if (ret)262 return ret;263 264 break;265 case TERTIARY_MI2S_RX:266 snd_soc_dai_set_sysclk(cpu_dai,267 Q6AFE_LPASS_CLK_ID_TER_MI2S_IBIT,268 MI2S_BCLK_RATE,269 SNDRV_PCM_STREAM_PLAYBACK);270 271 snd_soc_dai_set_fmt(codec_dai,272 SND_SOC_DAIFMT_BC_FC |273 SND_SOC_DAIFMT_NB_NF |274 SND_SOC_DAIFMT_I2S);275 snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_BP_FP);276 break;277 case DISPLAY_PORT_RX:278 break;279 default:280 dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,281 cpu_dai->id);282 return -EINVAL;283 }284 return 0;285}286 287static int dmic_get(struct snd_kcontrol *kcontrol,288 struct snd_ctl_elem_value *ucontrol)289{290 struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);291 struct sc7180_snd_data *data = snd_soc_card_get_drvdata(dapm->card);292 293 ucontrol->value.integer.value[0] = data->dmic_switch;294 return 0;295}296 297static int dmic_set(struct snd_kcontrol *kcontrol,298 struct snd_ctl_elem_value *ucontrol)299{300 struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);301 struct sc7180_snd_data *data = snd_soc_card_get_drvdata(dapm->card);302 303 data->dmic_switch = ucontrol->value.integer.value[0];304 gpiod_set_value(data->dmic_sel, data->dmic_switch);305 return 0;306}307 308static void sc7180_snd_shutdown(struct snd_pcm_substream *substream)309{310 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);311 struct snd_soc_card *card = rtd->card;312 struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card);313 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);314 315 switch (cpu_dai->id) {316 case MI2S_PRIMARY:317 if (--data->pri_mi2s_clk_count == 0) {318 snd_soc_dai_set_sysclk(cpu_dai,319 LPASS_MCLK0,320 0,321 SNDRV_PCM_STREAM_PLAYBACK);322 }323 break;324 case MI2S_SECONDARY:325 break;326 case LPASS_DP_RX:327 break;328 default:329 dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,330 cpu_dai->id);331 break;332 }333}334 335static void sc7180_qdsp_snd_shutdown(struct snd_pcm_substream *substream)336{337 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);338 struct snd_soc_card *card = rtd->card;339 struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card);340 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);341 342 switch (cpu_dai->id) {343 case PRIMARY_MI2S_RX:344 case PRIMARY_MI2S_TX:345 if (--data->pri_mi2s_clk_count == 0) {346 snd_soc_dai_set_sysclk(cpu_dai,347 Q6AFE_LPASS_CLK_ID_MCLK_1,348 0,349 SNDRV_PCM_STREAM_PLAYBACK);350 snd_soc_dai_set_sysclk(cpu_dai,351 Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,352 0,353 SNDRV_PCM_STREAM_PLAYBACK);354 }355 break;356 case TERTIARY_MI2S_RX:357 snd_soc_dai_set_sysclk(cpu_dai,358 Q6AFE_LPASS_CLK_ID_TER_MI2S_IBIT,359 0,360 SNDRV_PCM_STREAM_PLAYBACK);361 break;362 case DISPLAY_PORT_RX:363 break;364 default:365 dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,366 cpu_dai->id);367 break;368 }369}370 371static int sc7180_adau7002_init(struct snd_soc_pcm_runtime *rtd)372{373 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);374 375 switch (cpu_dai->id) {376 case MI2S_PRIMARY:377 return 0;378 case MI2S_SECONDARY:379 return 0;380 case LPASS_DP_RX:381 return sc7180_hdmi_init(rtd);382 default:383 dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,384 cpu_dai->id);385 return -EINVAL;386 }387 return 0;388}389 390static int sc7180_adau7002_snd_startup(struct snd_pcm_substream *substream)391{392 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);393 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);394 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);395 struct snd_pcm_runtime *runtime = substream->runtime;396 397 switch (cpu_dai->id) {398 case MI2S_PRIMARY:399 snd_soc_dai_set_fmt(codec_dai,400 SND_SOC_DAIFMT_CBS_CFS |401 SND_SOC_DAIFMT_NB_NF |402 SND_SOC_DAIFMT_I2S);403 runtime->hw.formats = SNDRV_PCM_FMTBIT_S32_LE;404 snd_pcm_hw_constraint_msbits(runtime, 0, 32, 32);405 406 break;407 case MI2S_SECONDARY:408 break;409 case LPASS_DP_RX:410 break;411 default:412 dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,413 cpu_dai->id);414 return -EINVAL;415 }416 return 0;417}418 419static int sc7180_qdsp_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,420 struct snd_pcm_hw_params *params)421{422 struct snd_interval *rate = hw_param_interval(params,423 SNDRV_PCM_HW_PARAM_RATE);424 struct snd_interval *channels = hw_param_interval(params,425 SNDRV_PCM_HW_PARAM_CHANNELS);426 427 rate->min = rate->max = 48000;428 channels->min = channels->max = 2;429 430 return 0;431}432 433static const struct snd_soc_ops sc7180_ops = {434 .startup = sc7180_snd_startup,435 .shutdown = sc7180_snd_shutdown,436};437 438static const struct snd_soc_ops sc7180_qdsp_ops = {439 .startup = sc7180_qdsp_snd_startup,440 .shutdown = sc7180_qdsp_snd_shutdown,441};442 443static const struct snd_soc_ops sc7180_adau7002_ops = {444 .startup = sc7180_adau7002_snd_startup,445};446 447static const struct snd_soc_dapm_widget sc7180_snd_widgets[] = {448 SND_SOC_DAPM_HP("Headphone Jack", NULL),449 SND_SOC_DAPM_MIC("Headset Mic", NULL),450};451 452static const struct snd_kcontrol_new sc7180_snd_controls[] = {453 SOC_DAPM_PIN_SWITCH("Headphone Jack"),454 SOC_DAPM_PIN_SWITCH("Headset Mic"),455};456 457static const struct snd_soc_dapm_widget sc7180_adau7002_snd_widgets[] = {458 SND_SOC_DAPM_MIC("DMIC", NULL),459};460 461static const char * const dmic_mux_text[] = {462 "Front Mic",463 "Rear Mic",464};465 466static SOC_ENUM_SINGLE_DECL(sc7180_dmic_enum,467 SND_SOC_NOPM, 0, dmic_mux_text);468 469static const struct snd_kcontrol_new sc7180_dmic_mux_control =470 SOC_DAPM_ENUM_EXT("DMIC Select Mux", sc7180_dmic_enum,471 dmic_get, dmic_set);472 473static const struct snd_soc_dapm_widget sc7180_snd_dual_mic_widgets[] = {474 SND_SOC_DAPM_HP("Headphone Jack", NULL),475 SND_SOC_DAPM_MIC("Headset Mic", NULL),476 SND_SOC_DAPM_MIC("DMIC", NULL),477 SND_SOC_DAPM_MUX("Dmic Mux", SND_SOC_NOPM, 0, 0, &sc7180_dmic_mux_control),478};479 480static const struct snd_kcontrol_new sc7180_snd_dual_mic_controls[] = {481 SOC_DAPM_PIN_SWITCH("Headphone Jack"),482 SOC_DAPM_PIN_SWITCH("Headset Mic"),483};484 485static const struct snd_soc_dapm_route sc7180_snd_dual_mic_audio_route[] = {486 {"Dmic Mux", "Front Mic", "DMIC"},487 {"Dmic Mux", "Rear Mic", "DMIC"},488};489 490static int sc7180_snd_platform_probe(struct platform_device *pdev)491{492 struct snd_soc_card *card;493 struct sc7180_snd_data *data;494 struct device *dev = &pdev->dev;495 struct snd_soc_dai_link *link;496 int ret;497 int i;498 bool qdsp = false, no_headphone = false;499 500 /* Allocate the private data */501 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);502 if (!data)503 return -ENOMEM;504 505 card = &data->card;506 snd_soc_card_set_drvdata(card, data);507 508 card->owner = THIS_MODULE;509 card->driver_name = DRIVER_NAME;510 card->dev = dev;511 card->dapm_widgets = sc7180_snd_widgets;512 card->num_dapm_widgets = ARRAY_SIZE(sc7180_snd_widgets);513 card->controls = sc7180_snd_controls;514 card->num_controls = ARRAY_SIZE(sc7180_snd_controls);515 516 if (of_property_read_bool(dev->of_node, "dmic-gpios")) {517 card->dapm_widgets = sc7180_snd_dual_mic_widgets,518 card->num_dapm_widgets = ARRAY_SIZE(sc7180_snd_dual_mic_widgets),519 card->controls = sc7180_snd_dual_mic_controls,520 card->num_controls = ARRAY_SIZE(sc7180_snd_dual_mic_controls),521 card->dapm_routes = sc7180_snd_dual_mic_audio_route,522 card->num_dapm_routes = ARRAY_SIZE(sc7180_snd_dual_mic_audio_route),523 data->dmic_sel = devm_gpiod_get(&pdev->dev, "dmic", GPIOD_OUT_LOW);524 if (IS_ERR(data->dmic_sel)) {525 dev_err(&pdev->dev, "DMIC gpio failed err=%ld\n", PTR_ERR(data->dmic_sel));526 return PTR_ERR(data->dmic_sel);527 }528 }529 530 if (of_device_is_compatible(dev->of_node, "google,sc7180-coachz")) {531 no_headphone = true;532 card->dapm_widgets = sc7180_adau7002_snd_widgets;533 card->num_dapm_widgets = ARRAY_SIZE(sc7180_adau7002_snd_widgets);534 } else if (of_device_is_compatible(dev->of_node, "qcom,sc7180-qdsp6-sndcard")) {535 qdsp = true;536 }537 538 ret = qcom_snd_parse_of(card);539 if (ret)540 return ret;541 542 for_each_card_prelinks(card, i, link) {543 if (no_headphone) {544 link->ops = &sc7180_adau7002_ops;545 link->init = sc7180_adau7002_init;546 } else if (qdsp) {547 if (link->no_pcm == 1) {548 link->ops = &sc7180_qdsp_ops;549 link->be_hw_params_fixup = sc7180_qdsp_be_hw_params_fixup;550 link->init = sc7180_qdsp_init;551 }552 } else {553 link->ops = &sc7180_ops;554 link->init = sc7180_init;555 }556 }557 558 return devm_snd_soc_register_card(dev, card);559}560 561static const struct of_device_id sc7180_snd_device_id[] = {562 {.compatible = "google,sc7180-trogdor"},563 {.compatible = "google,sc7180-coachz"},564 {.compatible = "qcom,sc7180-qdsp6-sndcard"},565 {},566};567MODULE_DEVICE_TABLE(of, sc7180_snd_device_id);568 569static struct platform_driver sc7180_snd_driver = {570 .probe = sc7180_snd_platform_probe,571 .driver = {572 .name = "msm-snd-sc7180",573 .of_match_table = sc7180_snd_device_id,574 .pm = &snd_soc_pm_ops,575 },576};577module_platform_driver(sc7180_snd_driver);578 579MODULE_DESCRIPTION("sc7180 ASoC Machine Driver");580MODULE_LICENSE("GPL");581