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/module.h>
  30 #include <sound/core.h>
  31 #include <sound/jack.h>
  32 #include <sound/pcm.h>
  33 #include <sound/soc.h>
  34 #include <linux/platform_data/asoc-ti-mcbsp.h>
  35 #include "../codecs/tpa6130a2.h"
  36
  37 #include <asm/mach-types.h>
  38
  39 #include "omap-mcbsp.h"
  40 #include "omap-pcm.h"
  41
  42 #define RX51_TVOUT_SEL_GPIO             40
  43 #define RX51_JACK_DETECT_GPIO           177
  44 #define RX51_ECI_SW_GPIO                182
  45 /*
  46  * REVISIT: TWL4030 GPIO base in RX-51. Now statically defined to 192. This
  47  * gpio is reserved in arch/arm/mach-omap2/board-rx51-peripherals.c
  48  */
  49 #define RX51_SPEAKER_AMP_TWL_GPIO       (192 + 7)
  50
  51 enum {
  52         RX51_JACK_DISABLED,
  53         RX51_JACK_TVOUT,                /* tv-out with stereo output */
  54         RX51_JACK_HP,                   /* headphone: stereo output, no mic */
  55         RX51_JACK_HS,                   /* headset: stereo output with mic */
  56 };
  57
  58 static int rx51_spk_func;
  59 static int rx51_dmic_func;
  60 static int rx51_jack_func;
  61
  62 static void rx51_ext_control(struct snd_soc_dapm_context *dapm)
  63 {
  64         int hp = 0, hs = 0, tvout = 0;
  65
  66         switch (rx51_jack_func) {
  67         case RX51_JACK_TVOUT:
  68                 tvout = 1;
  69                 hp = 1;
  70                 break;
  71         case RX51_JACK_HS:
  72                 hs = 1;
  73         case RX51_JACK_HP:
  74                 hp = 1;
  75                 break;
  76         }
  77
  78         if (rx51_spk_func)
  79                 snd_soc_dapm_enable_pin(dapm, "Ext Spk");
  80         else
  81                 snd_soc_dapm_disable_pin(dapm, "Ext Spk");
  82         if (rx51_dmic_func)
  83                 snd_soc_dapm_enable_pin(dapm, "DMic");
  84         else
  85                 snd_soc_dapm_disable_pin(dapm, "DMic");
  86         if (hp)
  87                 snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
  88         else
  89                 snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
  90         if (hs)
  91                 snd_soc_dapm_enable_pin(dapm, "HS Mic");
  92         else
  93                 snd_soc_dapm_disable_pin(dapm, "HS Mic");
  94
  95         gpio_set_value(RX51_TVOUT_SEL_GPIO, tvout);
  96
  97         snd_soc_dapm_sync(dapm);
  98 }
  99
 100 static int rx51_startup(struct snd_pcm_substream *substream)
 101 {
 102         struct snd_pcm_runtime *runtime = substream->runtime;
 103         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 104         struct snd_soc_card *card = rtd->card;
 105
 106         snd_pcm_hw_constraint_minmax(runtime,
 107                                      SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
 108         rx51_ext_control(&card->dapm);
 109
 110         return 0;
 111 }
 112
 113 static int rx51_hw_params(struct snd_pcm_substream *substream,
 114         struct snd_pcm_hw_params *params)
 115 {
 116         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 117         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 118
 119         /* Set the codec system clock for DAC and ADC */
 120         return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
 121                                       SND_SOC_CLOCK_IN);
 122 }
 123
 124 static struct snd_soc_ops rx51_ops = {
 125         .startup = rx51_startup,
 126         .hw_params = rx51_hw_params,
 127 };
 128
 129 static int rx51_get_spk(struct snd_kcontrol *kcontrol,
 130                         struct snd_ctl_elem_value *ucontrol)
 131 {
 132         ucontrol->value.integer.value[0] = rx51_spk_func;
 133
 134         return 0;
 135 }
 136
 137 static int rx51_set_spk(struct snd_kcontrol *kcontrol,
 138                         struct snd_ctl_elem_value *ucontrol)
 139 {
 140         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 141
 142         if (rx51_spk_func == ucontrol->value.integer.value[0])
 143                 return 0;
 144
 145         rx51_spk_func = ucontrol->value.integer.value[0];
 146         rx51_ext_control(&card->dapm);
 147
 148         return 1;
 149 }
 150
 151 static int rx51_spk_event(struct snd_soc_dapm_widget *w,
 152                           struct snd_kcontrol *k, int event)
 153 {
 154         if (SND_SOC_DAPM_EVENT_ON(event))
 155                 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 1);
 156         else
 157                 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 0);
 158
 159         return 0;
 160 }
 161
 162 static int rx51_hp_event(struct snd_soc_dapm_widget *w,
 163                          struct snd_kcontrol *k, int event)
 164 {
 165         struct snd_soc_codec *codec = w->dapm->codec;
 166
 167         if (SND_SOC_DAPM_EVENT_ON(event))
 168                 tpa6130a2_stereo_enable(codec, 1);
 169         else
 170                 tpa6130a2_stereo_enable(codec, 0);
 171
 172         return 0;
 173 }
 174
 175 static int rx51_get_input(struct snd_kcontrol *kcontrol,
 176                           struct snd_ctl_elem_value *ucontrol)
 177 {
 178         ucontrol->value.integer.value[0] = rx51_dmic_func;
 179
 180         return 0;
 181 }
 182
 183 static int rx51_set_input(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_dmic_func == ucontrol->value.integer.value[0])
 189                 return 0;
 190
 191         rx51_dmic_func = ucontrol->value.integer.value[0];
 192         rx51_ext_control(&card->dapm);
 193
 194         return 1;
 195 }
 196
 197 static int rx51_get_jack(struct snd_kcontrol *kcontrol,
 198                          struct snd_ctl_elem_value *ucontrol)
 199 {
 200         ucontrol->value.integer.value[0] = rx51_jack_func;
 201
 202         return 0;
 203 }
 204
 205 static int rx51_set_jack(struct snd_kcontrol *kcontrol,
 206                          struct snd_ctl_elem_value *ucontrol)
 207 {
 208         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 209
 210         if (rx51_jack_func == ucontrol->value.integer.value[0])
 211                 return 0;
 212
 213         rx51_jack_func = ucontrol->value.integer.value[0];
 214         rx51_ext_control(&card->dapm);
 215
 216         return 1;
 217 }
 218
 219 static struct snd_soc_jack rx51_av_jack;
 220
 221 static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
 222         {
 223                 .gpio = RX51_JACK_DETECT_GPIO,
 224                 .name = "avdet-gpio",
 225                 .report = SND_JACK_HEADSET,
 226                 .invert = 1,
 227                 .debounce_time = 200,
 228         },
 229 };
 230
 231 static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
 232         SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
 233         SND_SOC_DAPM_MIC("DMic", NULL),
 234         SND_SOC_DAPM_HP("Headphone Jack", rx51_hp_event),
 235         SND_SOC_DAPM_MIC("HS Mic", NULL),
 236         SND_SOC_DAPM_LINE("FM Transmitter", NULL),
 237 };
 238
 239 static const struct snd_soc_dapm_widget aic34_dapm_widgetsb[] = {
 240         SND_SOC_DAPM_SPK("Earphone", NULL),
 241 };
 242
 243 static const struct snd_soc_dapm_route audio_map[] = {
 244         {"Ext Spk", NULL, "HPLOUT"},
 245         {"Ext Spk", NULL, "HPROUT"},
 246         {"Headphone Jack", NULL, "LLOUT"},
 247         {"Headphone Jack", NULL, "RLOUT"},
 248         {"FM Transmitter", NULL, "LLOUT"},
 249         {"FM Transmitter", NULL, "RLOUT"},
 250
 251         {"DMic Rate 64", NULL, "Mic Bias 2V"},
 252         {"Mic Bias 2V", NULL, "DMic"},
 253 };
 254
 255 static const struct snd_soc_dapm_route audio_mapb[] = {
 256         {"b LINE2R", NULL, "MONO_LOUT"},
 257         {"Earphone", NULL, "b HPLOUT"},
 258
 259         {"LINE1L", NULL, "b Mic Bias 2.5V"},
 260         {"b Mic Bias 2.5V", NULL, "HS Mic"}
 261 };
 262
 263 static const char *spk_function[] = {"Off", "On"};
 264 static const char *input_function[] = {"ADC", "Digital Mic"};
 265 static const char *jack_function[] = {"Off", "TV-OUT", "Headphone", "Headset"};
 266
 267 static const struct soc_enum rx51_enum[] = {
 268         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
 269         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
 270         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
 271 };
 272
 273 static const struct snd_kcontrol_new aic34_rx51_controls[] = {
 274         SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
 275                      rx51_get_spk, rx51_set_spk),
 276         SOC_ENUM_EXT("Input Select",  rx51_enum[1],
 277                      rx51_get_input, rx51_set_input),
 278         SOC_ENUM_EXT("Jack Function", rx51_enum[2],
 279                      rx51_get_jack, rx51_set_jack),
 280         SOC_DAPM_PIN_SWITCH("FM Transmitter"),
 281 };
 282
 283 static const struct snd_kcontrol_new aic34_rx51_controlsb[] = {
 284         SOC_DAPM_PIN_SWITCH("Earphone"),
 285 };
 286
 287 static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
 288 {
 289         struct snd_soc_codec *codec = rtd->codec;
 290         struct snd_soc_dapm_context *dapm = &codec->dapm;
 291         int err;
 292
 293         /* Set up NC codec pins */
 294         snd_soc_dapm_nc_pin(dapm, "MIC3L");
 295         snd_soc_dapm_nc_pin(dapm, "MIC3R");
 296         snd_soc_dapm_nc_pin(dapm, "LINE1R");
 297
 298         /* Add RX-51 specific controls */
 299         err = snd_soc_add_card_controls(rtd->card, aic34_rx51_controls,
 300                                    ARRAY_SIZE(aic34_rx51_controls));
 301         if (err < 0)
 302                 return err;
 303
 304         /* Add RX-51 specific widgets */
 305         snd_soc_dapm_new_controls(dapm, aic34_dapm_widgets,
 306                                   ARRAY_SIZE(aic34_dapm_widgets));
 307
 308         /* Set up RX-51 specific audio path audio_map */
 309         snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
 310
 311         err = tpa6130a2_add_controls(codec);
 312         if (err < 0)
 313                 return err;
 314         snd_soc_limit_volume(codec, "TPA6130A2 Headphone Playback Volume", 42);
 315
 316         err = omap_mcbsp_st_add_controls(rtd);
 317         if (err < 0)
 318                 return err;
 319
 320         /* AV jack detection */
 321         err = snd_soc_jack_new(codec, "AV Jack",
 322                                SND_JACK_HEADSET | SND_JACK_VIDEOOUT,
 323                                &rx51_av_jack);
 324         if (err)
 325                 return err;
 326         err = snd_soc_jack_add_gpios(&rx51_av_jack,
 327                                      ARRAY_SIZE(rx51_av_jack_gpios),
 328                                      rx51_av_jack_gpios);
 329
 330         return err;
 331 }
 332
 333 static int rx51_aic34b_init(struct snd_soc_dapm_context *dapm)
 334 {
 335         int err;
 336
 337         err = snd_soc_add_card_controls(dapm->card, aic34_rx51_controlsb,
 338                                    ARRAY_SIZE(aic34_rx51_controlsb));
 339         if (err < 0)
 340                 return err;
 341
 342         err = snd_soc_dapm_new_controls(dapm, aic34_dapm_widgetsb,
 343                                         ARRAY_SIZE(aic34_dapm_widgetsb));
 344         if (err < 0)
 345                 return 0;
 346
 347         return snd_soc_dapm_add_routes(dapm, audio_mapb,
 348                                        ARRAY_SIZE(audio_mapb));
 349 }
 350
 351 /* Digital audio interface glue - connects codec <--> CPU */
 352 static struct snd_soc_dai_link rx51_dai[] = {
 353         {
 354                 .name = "TLV320AIC34",
 355                 .stream_name = "AIC34",
 356                 .cpu_dai_name = "omap-mcbsp.2",
 357                 .codec_dai_name = "tlv320aic3x-hifi",
 358                 .platform_name = "omap-pcm-audio",
 359                 .codec_name = "tlv320aic3x-codec.2-0018",
 360                 .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF |
 361                            SND_SOC_DAIFMT_CBM_CFM,
 362                 .init = rx51_aic34_init,
 363                 .ops = &rx51_ops,
 364         },
 365 };
 366
 367 static struct snd_soc_aux_dev rx51_aux_dev[] = {
 368         {
 369                 .name = "TLV320AIC34b",
 370                 .codec_name = "tlv320aic3x-codec.2-0019",
 371                 .init = rx51_aic34b_init,
 372         },
 373 };
 374
 375 static struct snd_soc_codec_conf rx51_codec_conf[] = {
 376         {
 377                 .dev_name = "tlv320aic3x-codec.2-0019",
 378                 .name_prefix = "b",
 379         },
 380 };
 381
 382 /* Audio card */
 383 static struct snd_soc_card rx51_sound_card = {
 384         .name = "RX-51",
 385         .owner = THIS_MODULE,
 386         .dai_link = rx51_dai,
 387         .num_links = ARRAY_SIZE(rx51_dai),
 388         .aux_dev = rx51_aux_dev,
 389         .num_aux_devs = ARRAY_SIZE(rx51_aux_dev),
 390         .codec_conf = rx51_codec_conf,
 391         .num_configs = ARRAY_SIZE(rx51_codec_conf),
 392 };
 393
 394 static struct platform_device *rx51_snd_device;
 395
 396 static int __init rx51_soc_init(void)
 397 {
 398         int err;
 399
 400         if (!machine_is_nokia_rx51())
 401                 return -ENODEV;
 402
 403         err = gpio_request_one(RX51_TVOUT_SEL_GPIO,
 404                                GPIOF_DIR_OUT | GPIOF_INIT_LOW, "tvout_sel");
 405         if (err)
 406                 goto err_gpio_tvout_sel;
 407         err = gpio_request_one(RX51_ECI_SW_GPIO,
 408                                GPIOF_DIR_OUT | GPIOF_INIT_HIGH, "eci_sw");
 409         if (err)
 410                 goto err_gpio_eci_sw;
 411
 412         rx51_snd_device = platform_device_alloc("soc-audio", -1);
 413         if (!rx51_snd_device) {
 414                 err = -ENOMEM;
 415                 goto err1;
 416         }
 417
 418         platform_set_drvdata(rx51_snd_device, &rx51_sound_card);
 419
 420         err = platform_device_add(rx51_snd_device);
 421         if (err)
 422                 goto err2;
 423
 424         return 0;
 425 err2:
 426         platform_device_put(rx51_snd_device);
 427 err1:
 428         gpio_free(RX51_ECI_SW_GPIO);
 429 err_gpio_eci_sw:
 430         gpio_free(RX51_TVOUT_SEL_GPIO);
 431 err_gpio_tvout_sel:
 432
 433         return err;
 434 }
 435
 436 static void __exit rx51_soc_exit(void)
 437 {
 438         snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
 439                                 rx51_av_jack_gpios);
 440
 441         platform_device_unregister(rx51_snd_device);
 442         gpio_free(RX51_ECI_SW_GPIO);
 443         gpio_free(RX51_TVOUT_SEL_GPIO);
 444 }
 445
 446 module_init(rx51_soc_init);
 447 module_exit(rx51_soc_exit);
 448
 449 MODULE_AUTHOR("Nokia Corporation");
 450 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
 451 MODULE_LICENSE("GPL");