sound/soc/qcom/sc7180.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 //
   3 // Copyright (c) 2020, The Linux Foundation. All rights reserved.
   4 //
   5 // sc7180.c -- ALSA SoC Machine driver for SC7180
   6
   7 #include <dt-bindings/sound/sc7180-lpass.h>
   8 #include <linux/gpio.h>
   9 #include <linux/gpio/consumer.h>
  10 #include <linux/module.h>
  11 #include <linux/of_device.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 "lpass.h"
  23
  24 #define DEFAULT_MCLK_RATE               19200000
  25 #define RT5682_PLL1_FREQ (48000 * 512)
  26
  27 #define DRIVER_NAME "SC7180"
  28
  29 struct sc7180_snd_data {
  30         struct snd_soc_card card;
  31         u32 pri_mi2s_clk_count;
  32         struct snd_soc_jack hs_jack;
  33         struct snd_soc_jack hdmi_jack;
  34         struct gpio_desc *dmic_sel;
  35         int dmic_switch;
  36 };
  37
  38 static void sc7180_jack_free(struct snd_jack *jack)
  39 {
  40         struct snd_soc_component *component = jack->private_data;
  41
  42         snd_soc_component_set_jack(component, NULL, NULL);
  43 }
  44
  45 static struct snd_soc_jack_pin sc7180_jack_pins[] = {
  46         {
  47                 .pin = "Headphone Jack",
  48                 .mask = SND_JACK_HEADPHONE,
  49         },
  50         {
  51                 .pin = "Headset Mic",
  52                 .mask = SND_JACK_MICROPHONE,
  53         },
  54 };
  55
  56 static int sc7180_headset_init(struct snd_soc_pcm_runtime *rtd)
  57 {
  58         struct snd_soc_card *card = rtd->card;
  59         struct sc7180_snd_data *pdata = snd_soc_card_get_drvdata(card);
  60         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
  61         struct snd_soc_component *component = codec_dai->component;
  62         struct snd_jack *jack;
  63         int rval;
  64
  65         rval = snd_soc_card_jack_new_pins(card, "Headset Jack",
  66                                           SND_JACK_HEADSET |
  67                                           SND_JACK_HEADPHONE |
  68                                           SND_JACK_BTN_0 | SND_JACK_BTN_1 |
  69                                           SND_JACK_BTN_2 | SND_JACK_BTN_3,
  70                                           &pdata->hs_jack,
  71                                           sc7180_jack_pins,
  72                                           ARRAY_SIZE(sc7180_jack_pins));
  73
  74         if (rval < 0) {
  75                 dev_err(card->dev, "Unable to add Headset Jack\n");
  76                 return rval;
  77         }
  78
  79         jack = pdata->hs_jack.jack;
  80
  81         snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
  82         snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
  83         snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
  84         snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
  85
  86         jack->private_data = component;
  87         jack->private_free = sc7180_jack_free;
  88
  89         return snd_soc_component_set_jack(component, &pdata->hs_jack, NULL);
  90 }
  91
  92 static int sc7180_hdmi_init(struct snd_soc_pcm_runtime *rtd)
  93 {
  94         struct snd_soc_card *card = rtd->card;
  95         struct sc7180_snd_data *pdata = snd_soc_card_get_drvdata(card);
  96         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
  97         struct snd_soc_component *component = codec_dai->component;
  98         struct snd_jack *jack;
  99         int rval;
 100
 101         rval = snd_soc_card_jack_new(
 102                         card, "HDMI Jack",
 103                         SND_JACK_LINEOUT,
 104                         &pdata->hdmi_jack);
 105
 106         if (rval < 0) {
 107                 dev_err(card->dev, "Unable to add HDMI Jack\n");
 108                 return rval;
 109         }
 110
 111         jack = pdata->hdmi_jack.jack;
 112         jack->private_data = component;
 113         jack->private_free = sc7180_jack_free;
 114
 115         return snd_soc_component_set_jack(component, &pdata->hdmi_jack, NULL);
 116 }
 117
 118 static int sc7180_init(struct snd_soc_pcm_runtime *rtd)
 119 {
 120         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 121
 122         switch (cpu_dai->id) {
 123         case MI2S_PRIMARY:
 124                 return sc7180_headset_init(rtd);
 125         case MI2S_SECONDARY:
 126                 return 0;
 127         case LPASS_DP_RX:
 128                 return sc7180_hdmi_init(rtd);
 129         default:
 130                 dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
 131                         cpu_dai->id);
 132                 return -EINVAL;
 133         }
 134         return 0;
 135 }
 136
 137 static int sc7180_snd_startup(struct snd_pcm_substream *substream)
 138 {
 139         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 140         struct snd_soc_card *card = rtd->card;
 141         struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card);
 142         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 143         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 144         int pll_id, pll_source, pll_in, pll_out, clk_id, ret;
 145
 146         if (!strcmp(codec_dai->name, "rt5682-aif1")) {
 147                 pll_source = RT5682_PLL1_S_MCLK;
 148                 pll_id = 0;
 149                 clk_id = RT5682_SCLK_S_PLL1;
 150                 pll_out = RT5682_PLL1_FREQ;
 151                 pll_in = DEFAULT_MCLK_RATE;
 152         } else if (!strcmp(codec_dai->name, "rt5682s-aif1")) {
 153                 pll_source = RT5682S_PLL_S_MCLK;
 154                 pll_id = RT5682S_PLL2;
 155                 clk_id = RT5682S_SCLK_S_PLL2;
 156                 pll_out = RT5682_PLL1_FREQ;
 157                 pll_in = DEFAULT_MCLK_RATE;
 158         }
 159
 160         switch (cpu_dai->id) {
 161         case MI2S_PRIMARY:
 162                 if (++data->pri_mi2s_clk_count == 1) {
 163                         snd_soc_dai_set_sysclk(cpu_dai,
 164                                                LPASS_MCLK0,
 165                                                DEFAULT_MCLK_RATE,
 166                                                SNDRV_PCM_STREAM_PLAYBACK);
 167                 }
 168
 169                 snd_soc_dai_set_fmt(codec_dai,
 170                                     SND_SOC_DAIFMT_BC_FC |
 171                                     SND_SOC_DAIFMT_NB_NF |
 172                                     SND_SOC_DAIFMT_I2S);
 173
 174                 /* Configure PLL1 for codec */
 175                 ret = snd_soc_dai_set_pll(codec_dai, pll_id, pll_source,
 176                                           pll_in, pll_out);
 177                 if (ret) {
 178                         dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
 179                         return ret;
 180                 }
 181
 182                 /* Configure sysclk for codec */
 183                 ret = snd_soc_dai_set_sysclk(codec_dai, clk_id, pll_out,
 184                                              SND_SOC_CLOCK_IN);
 185                 if (ret)
 186                         dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n",
 187                                 ret);
 188
 189                 break;
 190         case MI2S_SECONDARY:
 191                 break;
 192         case LPASS_DP_RX:
 193                 break;
 194         default:
 195                 dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
 196                         cpu_dai->id);
 197                 return -EINVAL;
 198         }
 199         return 0;
 200 }
 201
 202 static int dmic_get(struct snd_kcontrol *kcontrol,
 203                     struct snd_ctl_elem_value *ucontrol)
 204 {
 205         struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
 206         struct sc7180_snd_data *data = snd_soc_card_get_drvdata(dapm->card);
 207
 208         ucontrol->value.integer.value[0] = data->dmic_switch;
 209         return 0;
 210 }
 211
 212 static int dmic_set(struct snd_kcontrol *kcontrol,
 213                     struct snd_ctl_elem_value *ucontrol)
 214 {
 215         struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
 216         struct sc7180_snd_data *data = snd_soc_card_get_drvdata(dapm->card);
 217
 218         data->dmic_switch = ucontrol->value.integer.value[0];
 219         gpiod_set_value(data->dmic_sel, data->dmic_switch);
 220         return 0;
 221 }
 222
 223 static void sc7180_snd_shutdown(struct snd_pcm_substream *substream)
 224 {
 225         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 226         struct snd_soc_card *card = rtd->card;
 227         struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card);
 228         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 229
 230         switch (cpu_dai->id) {
 231         case MI2S_PRIMARY:
 232                 if (--data->pri_mi2s_clk_count == 0) {
 233                         snd_soc_dai_set_sysclk(cpu_dai,
 234                                                LPASS_MCLK0,
 235                                                0,
 236                                                SNDRV_PCM_STREAM_PLAYBACK);
 237                 }
 238                 break;
 239         case MI2S_SECONDARY:
 240                 break;
 241         case LPASS_DP_RX:
 242                 break;
 243         default:
 244                 dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
 245                         cpu_dai->id);
 246                 break;
 247         }
 248 }
 249
 250 static int sc7180_adau7002_init(struct snd_soc_pcm_runtime *rtd)
 251 {
 252         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 253
 254         switch (cpu_dai->id) {
 255         case MI2S_PRIMARY:
 256                 return 0;
 257         case MI2S_SECONDARY:
 258                 return 0;
 259         case LPASS_DP_RX:
 260                 return sc7180_hdmi_init(rtd);
 261         default:
 262                 dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
 263                         cpu_dai->id);
 264                 return -EINVAL;
 265         }
 266         return 0;
 267 }
 268
 269 static int sc7180_adau7002_snd_startup(struct snd_pcm_substream *substream)
 270 {
 271         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 272         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 273         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 274         struct snd_pcm_runtime *runtime = substream->runtime;
 275
 276         switch (cpu_dai->id) {
 277         case MI2S_PRIMARY:
 278                 snd_soc_dai_set_fmt(codec_dai,
 279                                     SND_SOC_DAIFMT_CBS_CFS |
 280                                     SND_SOC_DAIFMT_NB_NF |
 281                                     SND_SOC_DAIFMT_I2S);
 282                 runtime->hw.formats = SNDRV_PCM_FMTBIT_S32_LE;
 283                 snd_pcm_hw_constraint_msbits(runtime, 0, 32, 32);
 284
 285                 break;
 286         case MI2S_SECONDARY:
 287                 break;
 288         case LPASS_DP_RX:
 289                 break;
 290         default:
 291                 dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
 292                         cpu_dai->id);
 293                 return -EINVAL;
 294         }
 295         return 0;
 296 }
 297
 298 static const struct snd_soc_ops sc7180_ops = {
 299         .startup = sc7180_snd_startup,
 300         .shutdown = sc7180_snd_shutdown,
 301 };
 302
 303 static const struct snd_soc_ops sc7180_adau7002_ops = {
 304         .startup = sc7180_adau7002_snd_startup,
 305 };
 306
 307 static const struct snd_soc_dapm_widget sc7180_snd_widgets[] = {
 308         SND_SOC_DAPM_HP("Headphone Jack", NULL),
 309         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 310 };
 311
 312 static const struct snd_kcontrol_new sc7180_snd_controls[] = {
 313         SOC_DAPM_PIN_SWITCH("Headphone Jack"),
 314         SOC_DAPM_PIN_SWITCH("Headset Mic"),
 315 };
 316
 317 static const struct snd_soc_dapm_widget sc7180_adau7002_snd_widgets[] = {
 318         SND_SOC_DAPM_MIC("DMIC", NULL),
 319 };
 320
 321 static const char * const dmic_mux_text[] = {
 322         "Front Mic",
 323         "Rear Mic",
 324 };
 325
 326 static SOC_ENUM_SINGLE_DECL(sc7180_dmic_enum,
 327                             SND_SOC_NOPM, 0, dmic_mux_text);
 328
 329 static const struct snd_kcontrol_new sc7180_dmic_mux_control =
 330         SOC_DAPM_ENUM_EXT("DMIC Select Mux", sc7180_dmic_enum,
 331                           dmic_get, dmic_set);
 332
 333 static const struct snd_soc_dapm_widget sc7180_snd_dual_mic_widgets[] = {
 334         SND_SOC_DAPM_HP("Headphone Jack", NULL),
 335         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 336         SND_SOC_DAPM_MIC("DMIC", NULL),
 337         SND_SOC_DAPM_MUX("Dmic Mux", SND_SOC_NOPM, 0, 0, &sc7180_dmic_mux_control),
 338 };
 339
 340 static const struct snd_kcontrol_new sc7180_snd_dual_mic_controls[] = {
 341         SOC_DAPM_PIN_SWITCH("Headphone Jack"),
 342         SOC_DAPM_PIN_SWITCH("Headset Mic"),
 343 };
 344
 345 static const struct snd_soc_dapm_route sc7180_snd_dual_mic_audio_route[] = {
 346         {"Dmic Mux", "Front Mic", "DMIC"},
 347         {"Dmic Mux", "Rear Mic", "DMIC"},
 348 };
 349
 350 static int sc7180_snd_platform_probe(struct platform_device *pdev)
 351 {
 352         struct snd_soc_card *card;
 353         struct sc7180_snd_data *data;
 354         struct device *dev = &pdev->dev;
 355         struct snd_soc_dai_link *link;
 356         int ret;
 357         int i;
 358         bool no_headphone = false;
 359
 360         /* Allocate the private data */
 361         data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
 362         if (!data)
 363                 return -ENOMEM;
 364
 365         card = &data->card;
 366         snd_soc_card_set_drvdata(card, data);
 367
 368         card->owner = THIS_MODULE;
 369         card->driver_name = DRIVER_NAME;
 370         card->dev = dev;
 371         card->dapm_widgets = sc7180_snd_widgets;
 372         card->num_dapm_widgets = ARRAY_SIZE(sc7180_snd_widgets);
 373         card->controls = sc7180_snd_controls;
 374         card->num_controls = ARRAY_SIZE(sc7180_snd_controls);
 375
 376         if (of_property_read_bool(dev->of_node, "dmic-gpios")) {
 377                 card->dapm_widgets = sc7180_snd_dual_mic_widgets,
 378                 card->num_dapm_widgets = ARRAY_SIZE(sc7180_snd_dual_mic_widgets),
 379                 card->controls = sc7180_snd_dual_mic_controls,
 380                 card->num_controls = ARRAY_SIZE(sc7180_snd_dual_mic_controls),
 381                 card->dapm_routes = sc7180_snd_dual_mic_audio_route,
 382                 card->num_dapm_routes = ARRAY_SIZE(sc7180_snd_dual_mic_audio_route),
 383                 data->dmic_sel = devm_gpiod_get(&pdev->dev, "dmic", GPIOD_OUT_LOW);
 384                 if (IS_ERR(data->dmic_sel)) {
 385                         dev_err(&pdev->dev, "DMIC gpio failed err=%ld\n", PTR_ERR(data->dmic_sel));
 386                         return PTR_ERR(data->dmic_sel);
 387                 }
 388         }
 389
 390         if (of_device_is_compatible(dev->of_node, "google,sc7180-coachz")) {
 391                 no_headphone = true;
 392                 card->dapm_widgets = sc7180_adau7002_snd_widgets;
 393                 card->num_dapm_widgets = ARRAY_SIZE(sc7180_adau7002_snd_widgets);
 394         }
 395
 396         ret = qcom_snd_parse_of(card);
 397         if (ret)
 398                 return ret;
 399
 400         for_each_card_prelinks(card, i, link) {
 401                 if (no_headphone) {
 402                         link->ops = &sc7180_adau7002_ops;
 403                         link->init = sc7180_adau7002_init;
 404                 } else {
 405                         link->ops = &sc7180_ops;
 406                         link->init = sc7180_init;
 407                 }
 408         }
 409
 410         return devm_snd_soc_register_card(dev, card);
 411 }
 412
 413 static const struct of_device_id sc7180_snd_device_id[]  = {
 414         {.compatible = "google,sc7180-trogdor"},
 415         {.compatible = "google,sc7180-coachz"},
 416         {},
 417 };
 418 MODULE_DEVICE_TABLE(of, sc7180_snd_device_id);
 419
 420 static struct platform_driver sc7180_snd_driver = {
 421         .probe = sc7180_snd_platform_probe,
 422         .driver = {
 423                 .name = "msm-snd-sc7180",
 424                 .of_match_table = sc7180_snd_device_id,
 425                 .pm = &snd_soc_pm_ops,
 426         },
 427 };
 428 module_platform_driver(sc7180_snd_driver);
 429
 430 MODULE_DESCRIPTION("sc7180 ASoC Machine Driver");
 431 MODULE_LICENSE("GPL v2");