sound/soc/ti/rx51.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * rx51.c  --  SoC audio for Nokia RX-51
   4  *
   5  * Copyright (C) 2008 - 2009 Nokia Corporation
   6  *
   7  * Contact: Peter Ujfalusi <peter.ujfalusi@ti.com>
   8  *          Eduardo Valentin <eduardo.valentin@nokia.com>
   9  *          Jarkko Nikula <jarkko.nikula@bitmer.com>
  10  */
  11
  12 #include <linux/delay.h>
  13 #include <linux/gpio.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/gpio/consumer.h>
  16 #include <linux/module.h>
  17 #include <sound/core.h>
  18 #include <sound/jack.h>
  19 #include <sound/pcm.h>
  20 #include <sound/soc.h>
  21 #include <linux/platform_data/asoc-ti-mcbsp.h>
  22
  23 #include <asm/mach-types.h>
  24
  25 #include "omap-mcbsp.h"
  26
  27 enum {
  28         RX51_JACK_DISABLED,
  29         RX51_JACK_TVOUT,                /* tv-out with stereo output */
  30         RX51_JACK_HP,                   /* headphone: stereo output, no mic */
  31         RX51_JACK_HS,                   /* headset: stereo output with mic */
  32 };
  33
  34 struct rx51_audio_pdata {
  35         struct gpio_desc *tvout_selection_gpio;
  36         struct gpio_desc *jack_detection_gpio;
  37         struct gpio_desc *eci_sw_gpio;
  38         struct gpio_desc *speaker_amp_gpio;
  39 };
  40
  41 static int rx51_spk_func;
  42 static int rx51_dmic_func;
  43 static int rx51_jack_func;
  44
  45 static void rx51_ext_control(struct snd_soc_dapm_context *dapm)
  46 {
  47         struct snd_soc_card *card = dapm->card;
  48         struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card);
  49         int hp = 0, hs = 0, tvout = 0;
  50
  51         switch (rx51_jack_func) {
  52         case RX51_JACK_TVOUT:
  53                 tvout = 1;
  54                 hp = 1;
  55                 break;
  56         case RX51_JACK_HS:
  57                 hs = 1;
  58                 fallthrough;
  59         case RX51_JACK_HP:
  60                 hp = 1;
  61                 break;
  62         }
  63
  64         snd_soc_dapm_mutex_lock(dapm);
  65
  66         if (rx51_spk_func)
  67                 snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk");
  68         else
  69                 snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk");
  70         if (rx51_dmic_func)
  71                 snd_soc_dapm_enable_pin_unlocked(dapm, "DMic");
  72         else
  73                 snd_soc_dapm_disable_pin_unlocked(dapm, "DMic");
  74         if (hp)
  75                 snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
  76         else
  77                 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
  78         if (hs)
  79                 snd_soc_dapm_enable_pin_unlocked(dapm, "HS Mic");
  80         else
  81                 snd_soc_dapm_disable_pin_unlocked(dapm, "HS Mic");
  82
  83         gpiod_set_value(pdata->tvout_selection_gpio, tvout);
  84
  85         snd_soc_dapm_sync_unlocked(dapm);
  86
  87         snd_soc_dapm_mutex_unlock(dapm);
  88 }
  89
  90 static int rx51_startup(struct snd_pcm_substream *substream)
  91 {
  92         struct snd_pcm_runtime *runtime = substream->runtime;
  93         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
  94         struct snd_soc_card *card = rtd->card;
  95
  96         snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2);
  97         rx51_ext_control(&card->dapm);
  98
  99         return 0;
 100 }
 101
 102 static int rx51_hw_params(struct snd_pcm_substream *substream,
 103         struct snd_pcm_hw_params *params)
 104 {
 105         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 106         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 107
 108         /* Set the codec system clock for DAC and ADC */
 109         return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
 110                                       SND_SOC_CLOCK_IN);
 111 }
 112
 113 static const struct snd_soc_ops rx51_ops = {
 114         .startup = rx51_startup,
 115         .hw_params = rx51_hw_params,
 116 };
 117
 118 static int rx51_get_spk(struct snd_kcontrol *kcontrol,
 119                         struct snd_ctl_elem_value *ucontrol)
 120 {
 121         ucontrol->value.enumerated.item[0] = rx51_spk_func;
 122
 123         return 0;
 124 }
 125
 126 static int rx51_set_spk(struct snd_kcontrol *kcontrol,
 127                         struct snd_ctl_elem_value *ucontrol)
 128 {
 129         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 130
 131         if (rx51_spk_func == ucontrol->value.enumerated.item[0])
 132                 return 0;
 133
 134         rx51_spk_func = ucontrol->value.enumerated.item[0];
 135         rx51_ext_control(&card->dapm);
 136
 137         return 1;
 138 }
 139
 140 static int rx51_spk_event(struct snd_soc_dapm_widget *w,
 141                           struct snd_kcontrol *k, int event)
 142 {
 143         struct snd_soc_dapm_context *dapm = w->dapm;
 144         struct snd_soc_card *card = dapm->card;
 145         struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card);
 146
 147         gpiod_set_raw_value_cansleep(pdata->speaker_amp_gpio,
 148                                      !!SND_SOC_DAPM_EVENT_ON(event));
 149
 150         return 0;
 151 }
 152
 153 static int rx51_get_input(struct snd_kcontrol *kcontrol,
 154                           struct snd_ctl_elem_value *ucontrol)
 155 {
 156         ucontrol->value.enumerated.item[0] = rx51_dmic_func;
 157
 158         return 0;
 159 }
 160
 161 static int rx51_set_input(struct snd_kcontrol *kcontrol,
 162                           struct snd_ctl_elem_value *ucontrol)
 163 {
 164         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 165
 166         if (rx51_dmic_func == ucontrol->value.enumerated.item[0])
 167                 return 0;
 168
 169         rx51_dmic_func = ucontrol->value.enumerated.item[0];
 170         rx51_ext_control(&card->dapm);
 171
 172         return 1;
 173 }
 174
 175 static int rx51_get_jack(struct snd_kcontrol *kcontrol,
 176                          struct snd_ctl_elem_value *ucontrol)
 177 {
 178         ucontrol->value.enumerated.item[0] = rx51_jack_func;
 179
 180         return 0;
 181 }
 182
 183 static int rx51_set_jack(struct snd_kcontrol *kcontrol,
 184                          struct snd_ctl_elem_value *ucontrol)
 185 {
 186         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 187
 188         if (rx51_jack_func == ucontrol->value.enumerated.item[0])
 189                 return 0;
 190
 191         rx51_jack_func = ucontrol->value.enumerated.item[0];
 192         rx51_ext_control(&card->dapm);
 193
 194         return 1;
 195 }
 196
 197 static struct snd_soc_jack rx51_av_jack;
 198
 199 static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
 200         {
 201                 .name = "avdet-gpio",
 202                 .report = SND_JACK_HEADSET,
 203                 .invert = 1,
 204                 .debounce_time = 200,
 205         },
 206 };
 207
 208 static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
 209         SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
 210         SND_SOC_DAPM_MIC("DMic", NULL),
 211         SND_SOC_DAPM_HP("Headphone Jack", NULL),
 212         SND_SOC_DAPM_MIC("HS Mic", NULL),
 213         SND_SOC_DAPM_LINE("FM Transmitter", NULL),
 214         SND_SOC_DAPM_SPK("Earphone", NULL),
 215 };
 216
 217 static const struct snd_soc_dapm_route audio_map[] = {
 218         {"Ext Spk", NULL, "HPLOUT"},
 219         {"Ext Spk", NULL, "HPROUT"},
 220         {"Ext Spk", NULL, "HPLCOM"},
 221         {"Ext Spk", NULL, "HPRCOM"},
 222         {"FM Transmitter", NULL, "LLOUT"},
 223         {"FM Transmitter", NULL, "RLOUT"},
 224
 225         {"Headphone Jack", NULL, "TPA6130A2 HPLEFT"},
 226         {"Headphone Jack", NULL, "TPA6130A2 HPRIGHT"},
 227         {"TPA6130A2 LEFTIN", NULL, "LLOUT"},
 228         {"TPA6130A2 RIGHTIN", NULL, "RLOUT"},
 229
 230         {"DMic Rate 64", NULL, "DMic"},
 231         {"DMic", NULL, "Mic Bias"},
 232
 233         {"b LINE2R", NULL, "MONO_LOUT"},
 234         {"Earphone", NULL, "b HPLOUT"},
 235
 236         {"LINE1L", NULL, "HS Mic"},
 237         {"HS Mic", NULL, "b Mic Bias"},
 238 };
 239
 240 static const char * const spk_function[] = {"Off", "On"};
 241 static const char * const input_function[] = {"ADC", "Digital Mic"};
 242 static const char * const jack_function[] = {
 243         "Off", "TV-OUT", "Headphone", "Headset"
 244 };
 245
 246 static const struct soc_enum rx51_enum[] = {
 247         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
 248         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
 249         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
 250 };
 251
 252 static const struct snd_kcontrol_new aic34_rx51_controls[] = {
 253         SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
 254                      rx51_get_spk, rx51_set_spk),
 255         SOC_ENUM_EXT("Input Select",  rx51_enum[1],
 256                      rx51_get_input, rx51_set_input),
 257         SOC_ENUM_EXT("Jack Function", rx51_enum[2],
 258                      rx51_get_jack, rx51_set_jack),
 259         SOC_DAPM_PIN_SWITCH("FM Transmitter"),
 260         SOC_DAPM_PIN_SWITCH("Earphone"),
 261 };
 262
 263 static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
 264 {
 265         struct snd_soc_card *card = rtd->card;
 266         struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card);
 267         int err;
 268
 269         snd_soc_limit_volume(card, "TPA6130A2 Headphone Playback Volume", 42);
 270
 271         err = omap_mcbsp_st_add_controls(rtd, 2);
 272         if (err < 0) {
 273                 dev_err(card->dev, "Failed to add MCBSP controls\n");
 274                 return err;
 275         }
 276
 277         /* AV jack detection */
 278         err = snd_soc_card_jack_new(rtd->card, "AV Jack",
 279                                     SND_JACK_HEADSET | SND_JACK_VIDEOOUT,
 280                                     &rx51_av_jack, NULL, 0);
 281         if (err) {
 282                 dev_err(card->dev, "Failed to add AV Jack\n");
 283                 return err;
 284         }
 285
 286         /* prepare gpio for snd_soc_jack_add_gpios */
 287         rx51_av_jack_gpios[0].gpio = desc_to_gpio(pdata->jack_detection_gpio);
 288         devm_gpiod_put(card->dev, pdata->jack_detection_gpio);
 289
 290         err = snd_soc_jack_add_gpios(&rx51_av_jack,
 291                                      ARRAY_SIZE(rx51_av_jack_gpios),
 292                                      rx51_av_jack_gpios);
 293         if (err) {
 294                 dev_err(card->dev, "Failed to add GPIOs\n");
 295                 return err;
 296         }
 297
 298         return err;
 299 }
 300
 301 /* Digital audio interface glue - connects codec <--> CPU */
 302 SND_SOC_DAILINK_DEFS(aic34,
 303         DAILINK_COMP_ARRAY(COMP_CPU("omap-mcbsp.2")),
 304         DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.2-0018",
 305                                       "tlv320aic3x-hifi")),
 306         DAILINK_COMP_ARRAY(COMP_PLATFORM("omap-mcbsp.2")));
 307
 308 static struct snd_soc_dai_link rx51_dai[] = {
 309         {
 310                 .name = "TLV320AIC34",
 311                 .stream_name = "AIC34",
 312                 .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF |
 313                            SND_SOC_DAIFMT_CBM_CFM,
 314                 .init = rx51_aic34_init,
 315                 .ops = &rx51_ops,
 316                 SND_SOC_DAILINK_REG(aic34),
 317         },
 318 };
 319
 320 static struct snd_soc_aux_dev rx51_aux_dev[] = {
 321         {
 322                 .dlc = COMP_AUX("tlv320aic3x-codec.2-0019"),
 323         },
 324         {
 325                 .dlc = COMP_AUX("tpa6130a2.2-0060"),
 326         },
 327 };
 328
 329 static struct snd_soc_codec_conf rx51_codec_conf[] = {
 330         {
 331                 .dlc = COMP_CODEC_CONF("tlv320aic3x-codec.2-0019"),
 332                 .name_prefix = "b",
 333         },
 334         {
 335                 .dlc = COMP_CODEC_CONF("tpa6130a2.2-0060"),
 336                 .name_prefix = "TPA6130A2",
 337         },
 338 };
 339
 340 /* Audio card */
 341 static struct snd_soc_card rx51_sound_card = {
 342         .name = "RX-51",
 343         .owner = THIS_MODULE,
 344         .dai_link = rx51_dai,
 345         .num_links = ARRAY_SIZE(rx51_dai),
 346         .aux_dev = rx51_aux_dev,
 347         .num_aux_devs = ARRAY_SIZE(rx51_aux_dev),
 348         .codec_conf = rx51_codec_conf,
 349         .num_configs = ARRAY_SIZE(rx51_codec_conf),
 350         .fully_routed = true,
 351
 352         .controls = aic34_rx51_controls,
 353         .num_controls = ARRAY_SIZE(aic34_rx51_controls),
 354         .dapm_widgets = aic34_dapm_widgets,
 355         .num_dapm_widgets = ARRAY_SIZE(aic34_dapm_widgets),
 356         .dapm_routes = audio_map,
 357         .num_dapm_routes = ARRAY_SIZE(audio_map),
 358 };
 359
 360 static int rx51_soc_probe(struct platform_device *pdev)
 361 {
 362         struct rx51_audio_pdata *pdata;
 363         struct device_node *np = pdev->dev.of_node;
 364         struct snd_soc_card *card = &rx51_sound_card;
 365         int err;
 366
 367         if (!machine_is_nokia_rx51() && !of_machine_is_compatible("nokia,omap3-n900"))
 368                 return -ENODEV;
 369
 370         card->dev = &pdev->dev;
 371
 372         if (np) {
 373                 struct device_node *dai_node;
 374
 375                 dai_node = of_parse_phandle(np, "nokia,cpu-dai", 0);
 376                 if (!dai_node) {
 377                         dev_err(&pdev->dev, "McBSP node is not provided\n");
 378                         return -EINVAL;
 379                 }
 380                 rx51_dai[0].cpus->dai_name = NULL;
 381                 rx51_dai[0].platforms->name = NULL;
 382                 rx51_dai[0].cpus->of_node = dai_node;
 383                 rx51_dai[0].platforms->of_node = dai_node;
 384
 385                 dai_node = of_parse_phandle(np, "nokia,audio-codec", 0);
 386                 if (!dai_node) {
 387                         dev_err(&pdev->dev, "Codec node is not provided\n");
 388                         return -EINVAL;
 389                 }
 390                 rx51_dai[0].codecs->name = NULL;
 391                 rx51_dai[0].codecs->of_node = dai_node;
 392
 393                 dai_node = of_parse_phandle(np, "nokia,audio-codec", 1);
 394                 if (!dai_node) {
 395                         dev_err(&pdev->dev, "Auxiliary Codec node is not provided\n");
 396                         return -EINVAL;
 397                 }
 398                 rx51_aux_dev[0].dlc.name = NULL;
 399                 rx51_aux_dev[0].dlc.of_node = dai_node;
 400                 rx51_codec_conf[0].dlc.name = NULL;
 401                 rx51_codec_conf[0].dlc.of_node = dai_node;
 402
 403                 dai_node = of_parse_phandle(np, "nokia,headphone-amplifier", 0);
 404                 if (!dai_node) {
 405                         dev_err(&pdev->dev, "Headphone amplifier node is not provided\n");
 406                         return -EINVAL;
 407                 }
 408                 rx51_aux_dev[1].dlc.name = NULL;
 409                 rx51_aux_dev[1].dlc.of_node = dai_node;
 410                 rx51_codec_conf[1].dlc.name = NULL;
 411                 rx51_codec_conf[1].dlc.of_node = dai_node;
 412         }
 413
 414         pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
 415         if (pdata == NULL)
 416                 return -ENOMEM;
 417
 418         snd_soc_card_set_drvdata(card, pdata);
 419
 420         pdata->tvout_selection_gpio = devm_gpiod_get(card->dev,
 421                                                      "tvout-selection",
 422                                                      GPIOD_OUT_LOW);
 423         if (IS_ERR(pdata->tvout_selection_gpio)) {
 424                 dev_err(card->dev, "could not get tvout selection gpio\n");
 425                 return PTR_ERR(pdata->tvout_selection_gpio);
 426         }
 427
 428         pdata->jack_detection_gpio = devm_gpiod_get(card->dev,
 429                                                     "jack-detection",
 430                                                     GPIOD_ASIS);
 431         if (IS_ERR(pdata->jack_detection_gpio)) {
 432                 dev_err(card->dev, "could not get jack detection gpio\n");
 433                 return PTR_ERR(pdata->jack_detection_gpio);
 434         }
 435
 436         pdata->eci_sw_gpio = devm_gpiod_get(card->dev, "eci-switch",
 437                                             GPIOD_OUT_HIGH);
 438         if (IS_ERR(pdata->eci_sw_gpio)) {
 439                 dev_err(card->dev, "could not get eci switch gpio\n");
 440                 return PTR_ERR(pdata->eci_sw_gpio);
 441         }
 442
 443         pdata->speaker_amp_gpio = devm_gpiod_get(card->dev,
 444                                                  "speaker-amplifier",
 445                                                  GPIOD_OUT_LOW);
 446         if (IS_ERR(pdata->speaker_amp_gpio)) {
 447                 dev_err(card->dev, "could not get speaker enable gpio\n");
 448                 return PTR_ERR(pdata->speaker_amp_gpio);
 449         }
 450
 451         err = devm_snd_soc_register_card(card->dev, card);
 452         if (err) {
 453                 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", err);
 454                 return err;
 455         }
 456
 457         return 0;
 458 }
 459
 460 #if defined(CONFIG_OF)
 461 static const struct of_device_id rx51_audio_of_match[] = {
 462         { .compatible = "nokia,n900-audio", },
 463         {},
 464 };
 465 MODULE_DEVICE_TABLE(of, rx51_audio_of_match);
 466 #endif
 467
 468 static struct platform_driver rx51_soc_driver = {
 469         .driver = {
 470                 .name = "rx51-audio",
 471                 .of_match_table = of_match_ptr(rx51_audio_of_match),
 472         },
 473         .probe = rx51_soc_probe,
 474 };
 475
 476 module_platform_driver(rx51_soc_driver);
 477
 478 MODULE_AUTHOR("Nokia Corporation");
 479 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
 480 MODULE_LICENSE("GPL");
 481 MODULE_ALIAS("platform:rx51-audio");