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