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@nokia.com>
   7  *          Eduardo Valentin <eduardo.valentin@nokia.com>
   8  *          Jarkko Nikula <jhnikula@gmail.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 <sound/core.h>
  30 #include <sound/jack.h>
  31 #include <sound/pcm.h>
  32 #include <sound/soc.h>
  33 #include <plat/mcbsp.h>
  34 #include "../codecs/tpa6130a2.h"
  35
  36 #include <asm/mach-types.h>
  37
  38 #include "omap-mcbsp.h"
  39 #include "omap-pcm.h"
  40
  41 #define RX51_TVOUT_SEL_GPIO             40
  42 #define RX51_JACK_DETECT_GPIO           177
  43 /*
  44  * REVISIT: TWL4030 GPIO base in RX-51. Now statically defined to 192. This
  45  * gpio is reserved in arch/arm/mach-omap2/board-rx51-peripherals.c
  46  */
  47 #define RX51_SPEAKER_AMP_TWL_GPIO       (192 + 7)
  48
  49 enum {
  50         RX51_JACK_DISABLED,
  51         RX51_JACK_TVOUT,                /* tv-out with stereo output */
  52         RX51_JACK_HP,                   /* headphone: stereo output, no mic */
  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_codec *codec)
  60 {
  61         struct snd_soc_dapm_context *dapm = &codec->dapm;
  62         int hp = 0, tvout = 0;
  63
  64         switch (rx51_jack_func) {
  65         case RX51_JACK_TVOUT:
  66                 tvout = 1;
  67         case RX51_JACK_HP:
  68                 hp = 1;
  69                 break;
  70         }
  71
  72         if (rx51_spk_func)
  73                 snd_soc_dapm_enable_pin(dapm, "Ext Spk");
  74         else
  75                 snd_soc_dapm_disable_pin(dapm, "Ext Spk");
  76         if (rx51_dmic_func)
  77                 snd_soc_dapm_enable_pin(dapm, "DMic");
  78         else
  79                 snd_soc_dapm_disable_pin(dapm, "DMic");
  80         if (hp)
  81                 snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
  82         else
  83                 snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
  84
  85         gpio_set_value(RX51_TVOUT_SEL_GPIO, tvout);
  86
  87         snd_soc_dapm_sync(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 = substream->private_data;
  94         struct snd_soc_codec *codec = rtd->codec;
  95
  96         snd_pcm_hw_constraint_minmax(runtime,
  97                                      SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
  98         rx51_ext_control(codec);
  99
 100         return 0;
 101 }
 102
 103 static int rx51_hw_params(struct snd_pcm_substream *substream,
 104         struct snd_pcm_hw_params *params)
 105 {
 106         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 107         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 108         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 109         int err;
 110
 111         /* Set codec DAI configuration */
 112         err = snd_soc_dai_set_fmt(codec_dai,
 113                                   SND_SOC_DAIFMT_DSP_A |
 114                                   SND_SOC_DAIFMT_IB_NF |
 115                                   SND_SOC_DAIFMT_CBM_CFM);
 116         if (err < 0)
 117                 return err;
 118
 119         /* Set cpu DAI configuration */
 120         err = snd_soc_dai_set_fmt(cpu_dai,
 121                                   SND_SOC_DAIFMT_DSP_A |
 122                                   SND_SOC_DAIFMT_IB_NF |
 123                                   SND_SOC_DAIFMT_CBM_CFM);
 124         if (err < 0)
 125                 return err;
 126
 127         /* Set the codec system clock for DAC and ADC */
 128         return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
 129                                       SND_SOC_CLOCK_IN);
 130 }
 131
 132 static struct snd_soc_ops rx51_ops = {
 133         .startup = rx51_startup,
 134         .hw_params = rx51_hw_params,
 135 };
 136
 137 static int rx51_get_spk(struct snd_kcontrol *kcontrol,
 138                         struct snd_ctl_elem_value *ucontrol)
 139 {
 140         ucontrol->value.integer.value[0] = rx51_spk_func;
 141
 142         return 0;
 143 }
 144
 145 static int rx51_set_spk(struct snd_kcontrol *kcontrol,
 146                         struct snd_ctl_elem_value *ucontrol)
 147 {
 148         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 149
 150         if (rx51_spk_func == ucontrol->value.integer.value[0])
 151                 return 0;
 152
 153         rx51_spk_func = ucontrol->value.integer.value[0];
 154         rx51_ext_control(codec);
 155
 156         return 1;
 157 }
 158
 159 static int rx51_spk_event(struct snd_soc_dapm_widget *w,
 160                           struct snd_kcontrol *k, int event)
 161 {
 162         if (SND_SOC_DAPM_EVENT_ON(event))
 163                 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 1);
 164         else
 165                 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 0);
 166
 167         return 0;
 168 }
 169
 170 static int rx51_hp_event(struct snd_soc_dapm_widget *w,
 171                          struct snd_kcontrol *k, int event)
 172 {
 173         struct snd_soc_codec *codec = w->dapm->codec;
 174
 175         if (SND_SOC_DAPM_EVENT_ON(event))
 176                 tpa6130a2_stereo_enable(codec, 1);
 177         else
 178                 tpa6130a2_stereo_enable(codec, 0);
 179
 180         return 0;
 181 }
 182
 183 static int rx51_get_input(struct snd_kcontrol *kcontrol,
 184                           struct snd_ctl_elem_value *ucontrol)
 185 {
 186         ucontrol->value.integer.value[0] = rx51_dmic_func;
 187
 188         return 0;
 189 }
 190
 191 static int rx51_set_input(struct snd_kcontrol *kcontrol,
 192                           struct snd_ctl_elem_value *ucontrol)
 193 {
 194         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 195
 196         if (rx51_dmic_func == ucontrol->value.integer.value[0])
 197                 return 0;
 198
 199         rx51_dmic_func = ucontrol->value.integer.value[0];
 200         rx51_ext_control(codec);
 201
 202         return 1;
 203 }
 204
 205 static int rx51_get_jack(struct snd_kcontrol *kcontrol,
 206                          struct snd_ctl_elem_value *ucontrol)
 207 {
 208         ucontrol->value.integer.value[0] = rx51_jack_func;
 209
 210         return 0;
 211 }
 212
 213 static int rx51_set_jack(struct snd_kcontrol *kcontrol,
 214                          struct snd_ctl_elem_value *ucontrol)
 215 {
 216         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 217
 218         if (rx51_jack_func == ucontrol->value.integer.value[0])
 219                 return 0;
 220
 221         rx51_jack_func = ucontrol->value.integer.value[0];
 222         rx51_ext_control(codec);
 223
 224         return 1;
 225 }
 226
 227 static struct snd_soc_jack rx51_av_jack;
 228
 229 static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
 230         {
 231                 .gpio = RX51_JACK_DETECT_GPIO,
 232                 .name = "avdet-gpio",
 233                 .report = SND_JACK_VIDEOOUT,
 234                 .invert = 1,
 235                 .debounce_time = 200,
 236         },
 237 };
 238
 239 static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
 240         SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
 241         SND_SOC_DAPM_MIC("DMic", NULL),
 242         SND_SOC_DAPM_HP("Headphone Jack", rx51_hp_event),
 243 };
 244
 245 static const struct snd_soc_dapm_widget aic34_dapm_widgetsb[] = {
 246         SND_SOC_DAPM_SPK("Earphone", NULL),
 247 };
 248
 249 static const struct snd_soc_dapm_route audio_map[] = {
 250         {"Ext Spk", NULL, "HPLOUT"},
 251         {"Ext Spk", NULL, "HPROUT"},
 252         {"Headphone Jack", NULL, "LLOUT"},
 253         {"Headphone Jack", NULL, "RLOUT"},
 254
 255         {"DMic Rate 64", NULL, "Mic Bias 2V"},
 256         {"Mic Bias 2V", NULL, "DMic"},
 257 };
 258
 259 static const struct snd_soc_dapm_route audio_mapb[] = {
 260         {"b LINE2R", NULL, "MONO_LOUT"},
 261         {"Earphone", NULL, "b HPLOUT"},
 262 };
 263
 264 static const char *spk_function[] = {"Off", "On"};
 265 static const char *input_function[] = {"ADC", "Digital Mic"};
 266 static const char *jack_function[] = {"Off", "TV-OUT", "Headphone"};
 267
 268 static const struct soc_enum rx51_enum[] = {
 269         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
 270         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
 271         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
 272 };
 273
 274 static const struct snd_kcontrol_new aic34_rx51_controls[] = {
 275         SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
 276                      rx51_get_spk, rx51_set_spk),
 277         SOC_ENUM_EXT("Input Select",  rx51_enum[1],
 278                      rx51_get_input, rx51_set_input),
 279         SOC_ENUM_EXT("Jack Function", rx51_enum[2],
 280                      rx51_get_jack, rx51_set_jack),
 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_controls(codec, 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         snd_soc_dapm_sync(dapm);
 317
 318         /* AV jack detection */
 319         err = snd_soc_jack_new(codec, "AV Jack",
 320                                SND_JACK_VIDEOOUT, &rx51_av_jack);
 321         if (err)
 322                 return err;
 323         err = snd_soc_jack_add_gpios(&rx51_av_jack,
 324                                      ARRAY_SIZE(rx51_av_jack_gpios),
 325                                      rx51_av_jack_gpios);
 326
 327         return err;
 328 }
 329
 330 static int rx51_aic34b_init(struct snd_soc_dapm_context *dapm)
 331 {
 332         int err;
 333
 334         err = snd_soc_add_controls(dapm->codec, aic34_rx51_controlsb,
 335                                    ARRAY_SIZE(aic34_rx51_controlsb));
 336         if (err < 0)
 337                 return err;
 338
 339         err = snd_soc_dapm_new_controls(dapm, aic34_dapm_widgetsb,
 340                                         ARRAY_SIZE(aic34_dapm_widgetsb));
 341         if (err < 0)
 342                 return 0;
 343
 344         return snd_soc_dapm_add_routes(dapm, audio_mapb,
 345                                        ARRAY_SIZE(audio_mapb));
 346 }
 347
 348 /* Digital audio interface glue - connects codec <--> CPU */
 349 static struct snd_soc_dai_link rx51_dai[] = {
 350         {
 351                 .name = "TLV320AIC34",
 352                 .stream_name = "AIC34",
 353                 .cpu_dai_name = "omap-mcbsp-dai.1",
 354                 .codec_dai_name = "tlv320aic3x-hifi",
 355                 .platform_name = "omap-pcm-audio",
 356                 .codec_name = "tlv320aic3x-codec.2-0018",
 357                 .init = rx51_aic34_init,
 358                 .ops = &rx51_ops,
 359         },
 360 };
 361
 362 struct snd_soc_aux_dev rx51_aux_dev[] = {
 363         {
 364                 .name = "TLV320AIC34b",
 365                 .codec_name = "tlv320aic3x-codec.2-0019",
 366                 .init = rx51_aic34b_init,
 367         },
 368 };
 369
 370 static struct snd_soc_codec_conf rx51_codec_conf[] = {
 371         {
 372                 .dev_name = "tlv320aic3x-codec.2-0019",
 373                 .name_prefix = "b",
 374         },
 375 };
 376
 377 /* Audio card */
 378 static struct snd_soc_card rx51_sound_card = {
 379         .name = "RX-51",
 380         .dai_link = rx51_dai,
 381         .num_links = ARRAY_SIZE(rx51_dai),
 382         .aux_dev = rx51_aux_dev,
 383         .num_aux_devs = ARRAY_SIZE(rx51_aux_dev),
 384         .codec_conf = rx51_codec_conf,
 385         .num_configs = ARRAY_SIZE(rx51_codec_conf),
 386 };
 387
 388 static struct platform_device *rx51_snd_device;
 389
 390 static int __init rx51_soc_init(void)
 391 {
 392         int err;
 393
 394         if (!machine_is_nokia_rx51())
 395                 return -ENODEV;
 396
 397         err = gpio_request_one(RX51_TVOUT_SEL_GPIO,
 398                                GPIOF_DIR_OUT | GPIOF_INIT_LOW, "tvout_sel");
 399         if (err)
 400                 goto err_gpio_tvout_sel;
 401
 402         rx51_snd_device = platform_device_alloc("soc-audio", -1);
 403         if (!rx51_snd_device) {
 404                 err = -ENOMEM;
 405                 goto err1;
 406         }
 407
 408         platform_set_drvdata(rx51_snd_device, &rx51_sound_card);
 409
 410         err = platform_device_add(rx51_snd_device);
 411         if (err)
 412                 goto err2;
 413
 414         return 0;
 415 err2:
 416         platform_device_put(rx51_snd_device);
 417 err1:
 418         gpio_free(RX51_TVOUT_SEL_GPIO);
 419 err_gpio_tvout_sel:
 420
 421         return err;
 422 }
 423
 424 static void __exit rx51_soc_exit(void)
 425 {
 426         snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
 427                                 rx51_av_jack_gpios);
 428
 429         platform_device_unregister(rx51_snd_device);
 430         gpio_free(RX51_TVOUT_SEL_GPIO);
 431 }
 432
 433 module_init(rx51_soc_init);
 434 module_exit(rx51_soc_exit);
 435
 436 MODULE_AUTHOR("Nokia Corporation");
 437 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
 438 MODULE_LICENSE("GPL");