sound/soc/omap/rx51.c

   1 /*
   2  * rx51.c  --  SoC audio for Nokia RX-51
   3  *
   4  * Copyright (C) 2008 - 2009 Nokia Corporation
   5  *
   6  * Contact: Peter Ujfalusi <peter.ujfalusi@ti.com>
   7  *          Eduardo Valentin <eduardo.valentin@nokia.com>
   8  *          Jarkko Nikula <jarkko.nikula@bitmer.com>
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * version 2 as published by the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  22  * 02110-1301 USA
  23  *
  24  */
  25
  26 #include <linux/delay.h>
  27 #include <linux/gpio.h>
  28 #include <linux/platform_device.h>
  29 #include <linux/gpio/consumer.h>
  30 #include <linux/module.h>
  31 #include <sound/core.h>
  32 #include <sound/jack.h>
  33 #include <sound/pcm.h>
  34 #include <sound/soc.h>
  35 #include <linux/platform_data/asoc-ti-mcbsp.h>
  36
  37 #include <asm/mach-types.h>
  38
  39 #include "omap-mcbsp.h"
  40
  41 enum {
  42         RX51_JACK_DISABLED,
  43         RX51_JACK_TVOUT,                /* tv-out with stereo output */
  44         RX51_JACK_HP,                   /* headphone: stereo output, no mic */
  45         RX51_JACK_HS,                   /* headset: stereo output with mic */
  46 };
  47
  48 struct rx51_audio_pdata {
  49         struct gpio_desc *tvout_selection_gpio;
  50         struct gpio_desc *jack_detection_gpio;
  51         struct gpio_desc *eci_sw_gpio;
  52         struct gpio_desc *speaker_amp_gpio;
  53 };
  54
  55 static int rx51_spk_func;
  56 static int rx51_dmic_func;
  57 static int rx51_jack_func;
  58
  59 static void rx51_ext_control(struct snd_soc_dapm_context *dapm)
  60 {
  61         struct snd_soc_card *card = dapm->card;
  62         struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card);
  63         int hp = 0, hs = 0, tvout = 0;
  64
  65         switch (rx51_jack_func) {
  66         case RX51_JACK_TVOUT:
  67                 tvout = 1;
  68                 hp = 1;
  69                 break;
  70         case RX51_JACK_HS:
  71                 hs = 1;
  72         case RX51_JACK_HP:
  73                 hp = 1;
  74                 break;
  75         }
  76
  77         snd_soc_dapm_mutex_lock(dapm);
  78
  79         if (rx51_spk_func)
  80                 snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk");
  81         else
  82                 snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk");
  83         if (rx51_dmic_func)
  84                 snd_soc_dapm_enable_pin_unlocked(dapm, "DMic");
  85         else
  86                 snd_soc_dapm_disable_pin_unlocked(dapm, "DMic");
  87         if (hp)
  88                 snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
  89         else
  90                 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
  91         if (hs)
  92                 snd_soc_dapm_enable_pin_unlocked(dapm, "HS Mic");
  93         else
  94                 snd_soc_dapm_disable_pin_unlocked(dapm, "HS Mic");
  95
  96         gpiod_set_value(pdata->tvout_selection_gpio, tvout);
  97
  98         snd_soc_dapm_sync_unlocked(dapm);
  99
 100         snd_soc_dapm_mutex_unlock(dapm);
 101 }
 102
 103 static int rx51_startup(struct snd_pcm_substream *substream)
 104 {
 105         struct snd_pcm_runtime *runtime = substream->runtime;
 106         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 107         struct snd_soc_card *card = rtd->card;
 108
 109         snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2);
 110         rx51_ext_control(&card->dapm);
 111
 112         return 0;
 113 }
 114
 115 static int rx51_hw_params(struct snd_pcm_substream *substream,
 116         struct snd_pcm_hw_params *params)
 117 {
 118         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 119         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 120
 121         /* Set the codec system clock for DAC and ADC */
 122         return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
 123                                       SND_SOC_CLOCK_IN);
 124 }
 125
 126 static struct snd_soc_ops rx51_ops = {
 127         .startup = rx51_startup,
 128         .hw_params = rx51_hw_params,
 129 };
 130
 131 static int rx51_get_spk(struct snd_kcontrol *kcontrol,
 132                         struct snd_ctl_elem_value *ucontrol)
 133 {
 134         ucontrol->value.enumerated.item[0] = rx51_spk_func;
 135
 136         return 0;
 137 }
 138
 139 static int rx51_set_spk(struct snd_kcontrol *kcontrol,
 140                         struct snd_ctl_elem_value *ucontrol)
 141 {
 142         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 143
 144         if (rx51_spk_func == ucontrol->value.enumerated.item[0])
 145                 return 0;
 146
 147         rx51_spk_func = ucontrol->value.enumerated.item[0];
 148         rx51_ext_control(&card->dapm);
 149
 150         return 1;
 151 }
 152
 153 static int rx51_spk_event(struct snd_soc_dapm_widget *w,
 154                           struct snd_kcontrol *k, int event)
 155 {
 156         struct snd_soc_dapm_context *dapm = w->dapm;
 157         struct snd_soc_card *card = dapm->card;
 158         struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card);
 159
 160         gpiod_set_raw_value_cansleep(pdata->speaker_amp_gpio,
 161                                      !!SND_SOC_DAPM_EVENT_ON(event));
 162
 163         return 0;
 164 }
 165
 166 static int rx51_get_input(struct snd_kcontrol *kcontrol,
 167                           struct snd_ctl_elem_value *ucontrol)
 168 {
 169         ucontrol->value.enumerated.item[0] = rx51_dmic_func;
 170
 171         return 0;
 172 }
 173
 174 static int rx51_set_input(struct snd_kcontrol *kcontrol,
 175                           struct snd_ctl_elem_value *ucontrol)
 176 {
 177         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 178
 179         if (rx51_dmic_func == ucontrol->value.enumerated.item[0])
 180                 return 0;
 181
 182         rx51_dmic_func = ucontrol->value.enumerated.item[0];
 183         rx51_ext_control(&card->dapm);
 184
 185         return 1;
 186 }
 187
 188 static int rx51_get_jack(struct snd_kcontrol *kcontrol,
 189                          struct snd_ctl_elem_value *ucontrol)
 190 {
 191         ucontrol->value.enumerated.item[0] = rx51_jack_func;
 192
 193         return 0;
 194 }
 195
 196 static int rx51_set_jack(struct snd_kcontrol *kcontrol,
 197                          struct snd_ctl_elem_value *ucontrol)
 198 {
 199         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 200
 201         if (rx51_jack_func == ucontrol->value.enumerated.item[0])
 202                 return 0;
 203
 204         rx51_jack_func = ucontrol->value.enumerated.item[0];
 205         rx51_ext_control(&card->dapm);
 206
 207         return 1;
 208 }
 209
 210 static struct snd_soc_jack rx51_av_jack;
 211
 212 static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
 213         {
 214                 .name = "avdet-gpio",
 215                 .report = SND_JACK_HEADSET,
 216                 .invert = 1,
 217                 .debounce_time = 200,
 218         },
 219 };
 220
 221 static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
 222         SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
 223         SND_SOC_DAPM_MIC("DMic", NULL),
 224         SND_SOC_DAPM_HP("Headphone Jack", NULL),
 225         SND_SOC_DAPM_MIC("HS Mic", NULL),
 226         SND_SOC_DAPM_LINE("FM Transmitter", NULL),
 227         SND_SOC_DAPM_SPK("Earphone", NULL),
 228 };
 229
 230 static const struct snd_soc_dapm_route audio_map[] = {
 231         {"Ext Spk", NULL, "HPLOUT"},
 232         {"Ext Spk", NULL, "HPROUT"},
 233         {"Ext Spk", NULL, "HPLCOM"},
 234         {"Ext Spk", NULL, "HPRCOM"},
 235         {"FM Transmitter", NULL, "LLOUT"},
 236         {"FM Transmitter", NULL, "RLOUT"},
 237
 238         {"Headphone Jack", NULL, "TPA6130A2 HPLEFT"},
 239         {"Headphone Jack", NULL, "TPA6130A2 HPRIGHT"},
 240         {"TPA6130A2 LEFTIN", NULL, "LLOUT"},
 241         {"TPA6130A2 RIGHTIN", NULL, "RLOUT"},
 242
 243         {"DMic Rate 64", NULL, "DMic"},
 244         {"DMic", NULL, "Mic Bias"},
 245
 246         {"b LINE2R", NULL, "MONO_LOUT"},
 247         {"Earphone", NULL, "b HPLOUT"},
 248
 249         {"LINE1L", NULL, "HS Mic"},
 250         {"HS Mic", NULL, "b Mic Bias"},
 251 };
 252
 253 static const char * const spk_function[] = {"Off", "On"};
 254 static const char * const input_function[] = {"ADC", "Digital Mic"};
 255 static const char * const jack_function[] = {
 256         "Off", "TV-OUT", "Headphone", "Headset"
 257 };
 258
 259 static const struct soc_enum rx51_enum[] = {
 260         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
 261         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
 262         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
 263 };
 264
 265 static const struct snd_kcontrol_new aic34_rx51_controls[] = {
 266         SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
 267                      rx51_get_spk, rx51_set_spk),
 268         SOC_ENUM_EXT("Input Select",  rx51_enum[1],
 269                      rx51_get_input, rx51_set_input),
 270         SOC_ENUM_EXT("Jack Function", rx51_enum[2],
 271                      rx51_get_jack, rx51_set_jack),
 272         SOC_DAPM_PIN_SWITCH("FM Transmitter"),
 273         SOC_DAPM_PIN_SWITCH("Earphone"),
 274 };
 275
 276 static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
 277 {
 278         struct snd_soc_card *card = rtd->card;
 279         struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card);
 280         int err;
 281
 282         snd_soc_limit_volume(card, "TPA6130A2 Headphone Playback Volume", 42);
 283
 284         err = omap_mcbsp_st_add_controls(rtd, 2);
 285         if (err < 0) {
 286                 dev_err(card->dev, "Failed to add MCBSP controls\n");
 287                 return err;
 288         }
 289
 290         /* AV jack detection */
 291         err = snd_soc_card_jack_new(rtd->card, "AV Jack",
 292                                     SND_JACK_HEADSET | SND_JACK_VIDEOOUT,
 293                                     &rx51_av_jack, NULL, 0);
 294         if (err) {
 295                 dev_err(card->dev, "Failed to add AV Jack\n");
 296                 return err;
 297         }
 298
 299         /* prepare gpio for snd_soc_jack_add_gpios */
 300         rx51_av_jack_gpios[0].gpio = desc_to_gpio(pdata->jack_detection_gpio);
 301         devm_gpiod_put(card->dev, pdata->jack_detection_gpio);
 302
 303         err = snd_soc_jack_add_gpios(&rx51_av_jack,
 304                                      ARRAY_SIZE(rx51_av_jack_gpios),
 305                                      rx51_av_jack_gpios);
 306         if (err) {
 307                 dev_err(card->dev, "Failed to add GPIOs\n");
 308                 return err;
 309         }
 310
 311         return err;
 312 }
 313
 314 static int rx51_card_remove(struct snd_soc_card *card)
 315 {
 316         snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
 317                                 rx51_av_jack_gpios);
 318
 319         return 0;
 320 }
 321
 322 /* Digital audio interface glue - connects codec <--> CPU */
 323 static struct snd_soc_dai_link rx51_dai[] = {
 324         {
 325                 .name = "TLV320AIC34",
 326                 .stream_name = "AIC34",
 327                 .cpu_dai_name = "omap-mcbsp.2",
 328                 .codec_dai_name = "tlv320aic3x-hifi",
 329                 .platform_name = "omap-mcbsp.2",
 330                 .codec_name = "tlv320aic3x-codec.2-0018",
 331                 .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF |
 332                            SND_SOC_DAIFMT_CBM_CFM,
 333                 .init = rx51_aic34_init,
 334                 .ops = &rx51_ops,
 335         },
 336 };
 337
 338 static struct snd_soc_aux_dev rx51_aux_dev[] = {
 339         {
 340                 .name = "TLV320AIC34b",
 341                 .codec_name = "tlv320aic3x-codec.2-0019",
 342         },
 343         {
 344                 .name = "TPA61320A2",
 345                 .codec_name = "tpa6130a2.2-0060",
 346         },
 347 };
 348
 349 static struct snd_soc_codec_conf rx51_codec_conf[] = {
 350         {
 351                 .dev_name = "tlv320aic3x-codec.2-0019",
 352                 .name_prefix = "b",
 353         },
 354         {
 355                 .dev_name = "tpa6130a2.2-0060",
 356                 .name_prefix = "TPA6130A2",
 357         },
 358 };
 359
 360 /* Audio card */
 361 static struct snd_soc_card rx51_sound_card = {
 362         .name = "RX-51",
 363         .owner = THIS_MODULE,
 364         .remove = rx51_card_remove,
 365         .dai_link = rx51_dai,
 366         .num_links = ARRAY_SIZE(rx51_dai),
 367         .aux_dev = rx51_aux_dev,
 368         .num_aux_devs = ARRAY_SIZE(rx51_aux_dev),
 369         .codec_conf = rx51_codec_conf,
 370         .num_configs = ARRAY_SIZE(rx51_codec_conf),
 371         .fully_routed = true,
 372
 373         .controls = aic34_rx51_controls,
 374         .num_controls = ARRAY_SIZE(aic34_rx51_controls),
 375         .dapm_widgets = aic34_dapm_widgets,
 376         .num_dapm_widgets = ARRAY_SIZE(aic34_dapm_widgets),
 377         .dapm_routes = audio_map,
 378         .num_dapm_routes = ARRAY_SIZE(audio_map),
 379 };
 380
 381 static int rx51_soc_probe(struct platform_device *pdev)
 382 {
 383         struct rx51_audio_pdata *pdata;
 384         struct device_node *np = pdev->dev.of_node;
 385         struct snd_soc_card *card = &rx51_sound_card;
 386         int err;
 387
 388         if (!machine_is_nokia_rx51() && !of_machine_is_compatible("nokia,omap3-n900"))
 389                 return -ENODEV;
 390
 391         card->dev = &pdev->dev;
 392
 393         if (np) {
 394                 struct device_node *dai_node;
 395
 396                 dai_node = of_parse_phandle(np, "nokia,cpu-dai", 0);
 397                 if (!dai_node) {
 398                         dev_err(&pdev->dev, "McBSP node is not provided\n");
 399                         return -EINVAL;
 400                 }
 401                 rx51_dai[0].cpu_dai_name = NULL;
 402                 rx51_dai[0].platform_name = NULL;
 403                 rx51_dai[0].cpu_of_node = dai_node;
 404                 rx51_dai[0].platform_of_node = dai_node;
 405
 406                 dai_node = of_parse_phandle(np, "nokia,audio-codec", 0);
 407                 if (!dai_node) {
 408                         dev_err(&pdev->dev, "Codec node is not provided\n");
 409                         return -EINVAL;
 410                 }
 411                 rx51_dai[0].codec_name = NULL;
 412                 rx51_dai[0].codec_of_node = dai_node;
 413
 414                 dai_node = of_parse_phandle(np, "nokia,audio-codec", 1);
 415                 if (!dai_node) {
 416                         dev_err(&pdev->dev, "Auxiliary Codec node is not provided\n");
 417                         return -EINVAL;
 418                 }
 419                 rx51_aux_dev[0].codec_name = NULL;
 420                 rx51_aux_dev[0].codec_of_node = dai_node;
 421                 rx51_codec_conf[0].dev_name = NULL;
 422                 rx51_codec_conf[0].of_node = dai_node;
 423
 424                 dai_node = of_parse_phandle(np, "nokia,headphone-amplifier", 0);
 425                 if (!dai_node) {
 426                         dev_err(&pdev->dev, "Headphone amplifier node is not provided\n");
 427                         return -EINVAL;
 428                 }
 429                 rx51_aux_dev[1].codec_name = NULL;
 430                 rx51_aux_dev[1].codec_of_node = dai_node;
 431                 rx51_codec_conf[1].dev_name = NULL;
 432                 rx51_codec_conf[1].of_node = dai_node;
 433         }
 434
 435         pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
 436         if (pdata == NULL) {
 437                 dev_err(card->dev, "failed to create private data\n");
 438                 return -ENOMEM;
 439         }
 440         snd_soc_card_set_drvdata(card, pdata);
 441
 442         pdata->tvout_selection_gpio = devm_gpiod_get(card->dev,
 443                                                      "tvout-selection",
 444                                                      GPIOD_OUT_LOW);
 445         if (IS_ERR(pdata->tvout_selection_gpio)) {
 446                 dev_err(card->dev, "could not get tvout selection gpio\n");
 447                 return PTR_ERR(pdata->tvout_selection_gpio);
 448         }
 449
 450         pdata->jack_detection_gpio = devm_gpiod_get(card->dev,
 451                                                     "jack-detection",
 452                                                     GPIOD_ASIS);
 453         if (IS_ERR(pdata->jack_detection_gpio)) {
 454                 dev_err(card->dev, "could not get jack detection gpio\n");
 455                 return PTR_ERR(pdata->jack_detection_gpio);
 456         }
 457
 458         pdata->eci_sw_gpio = devm_gpiod_get(card->dev, "eci-switch",
 459                                             GPIOD_OUT_HIGH);
 460         if (IS_ERR(pdata->eci_sw_gpio)) {
 461                 dev_err(card->dev, "could not get eci switch gpio\n");
 462                 return PTR_ERR(pdata->eci_sw_gpio);
 463         }
 464
 465         pdata->speaker_amp_gpio = devm_gpiod_get(card->dev,
 466                                                  "speaker-amplifier",
 467                                                  GPIOD_OUT_LOW);
 468         if (IS_ERR(pdata->speaker_amp_gpio)) {
 469                 dev_err(card->dev, "could not get speaker enable gpio\n");
 470                 return PTR_ERR(pdata->speaker_amp_gpio);
 471         }
 472
 473         err = devm_snd_soc_register_card(card->dev, card);
 474         if (err) {
 475                 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", err);
 476                 return err;
 477         }
 478
 479         return 0;
 480 }
 481
 482 #if defined(CONFIG_OF)
 483 static const struct of_device_id rx51_audio_of_match[] = {
 484         { .compatible = "nokia,n900-audio", },
 485         {},
 486 };
 487 MODULE_DEVICE_TABLE(of, rx51_audio_of_match);
 488 #endif
 489
 490 static struct platform_driver rx51_soc_driver = {
 491         .driver = {
 492                 .name = "rx51-audio",
 493                 .of_match_table = of_match_ptr(rx51_audio_of_match),
 494         },
 495         .probe = rx51_soc_probe,
 496 };
 497
 498 module_platform_driver(rx51_soc_driver);
 499
 500 MODULE_AUTHOR("Nokia Corporation");
 501 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
 502 MODULE_LICENSE("GPL");
 503 MODULE_ALIAS("platform:rx51-audio");