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
  41 #define RX51_TVOUT_SEL_GPIO             40
  42 #define RX51_JACK_DETECT_GPIO           177
  43 #define RX51_ECI_SW_GPIO                182
  44 /*
  45  * REVISIT: TWL4030 GPIO base in RX-51. Now statically defined to 192. This
  46  * gpio is reserved in arch/arm/mach-omap2/board-rx51-peripherals.c
  47  */
  48 #define RX51_SPEAKER_AMP_TWL_GPIO       (192 + 7)
  49
  50 enum {
  51         RX51_JACK_DISABLED,
  52         RX51_JACK_TVOUT,                /* tv-out with stereo output */
  53         RX51_JACK_HP,                   /* headphone: stereo output, no mic */
  54         RX51_JACK_HS,                   /* headset: stereo output with mic */
  55 };
  56
  57 static int rx51_spk_func;
  58 static int rx51_dmic_func;
  59 static int rx51_jack_func;
  60
  61 static void rx51_ext_control(struct snd_soc_dapm_context *dapm)
  62 {
  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         if (rx51_spk_func)
  78                 snd_soc_dapm_enable_pin(dapm, "Ext Spk");
  79         else
  80                 snd_soc_dapm_disable_pin(dapm, "Ext Spk");
  81         if (rx51_dmic_func)
  82                 snd_soc_dapm_enable_pin(dapm, "DMic");
  83         else
  84                 snd_soc_dapm_disable_pin(dapm, "DMic");
  85         if (hp)
  86                 snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
  87         else
  88                 snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
  89         if (hs)
  90                 snd_soc_dapm_enable_pin(dapm, "HS Mic");
  91         else
  92                 snd_soc_dapm_disable_pin(dapm, "HS Mic");
  93
  94         gpio_set_value(RX51_TVOUT_SEL_GPIO, tvout);
  95
  96         snd_soc_dapm_sync(dapm);
  97 }
  98
  99 static int rx51_startup(struct snd_pcm_substream *substream)
 100 {
 101         struct snd_pcm_runtime *runtime = substream->runtime;
 102         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 103         struct snd_soc_card *card = rtd->card;
 104
 105         snd_pcm_hw_constraint_minmax(runtime,
 106                                      SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
 107         rx51_ext_control(&card->dapm);
 108
 109         return 0;
 110 }
 111
 112 static int rx51_hw_params(struct snd_pcm_substream *substream,
 113         struct snd_pcm_hw_params *params)
 114 {
 115         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 116         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 117
 118         /* Set the codec system clock for DAC and ADC */
 119         return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
 120                                       SND_SOC_CLOCK_IN);
 121 }
 122
 123 static struct snd_soc_ops rx51_ops = {
 124         .startup = rx51_startup,
 125         .hw_params = rx51_hw_params,
 126 };
 127
 128 static int rx51_get_spk(struct snd_kcontrol *kcontrol,
 129                         struct snd_ctl_elem_value *ucontrol)
 130 {
 131         ucontrol->value.integer.value[0] = rx51_spk_func;
 132
 133         return 0;
 134 }
 135
 136 static int rx51_set_spk(struct snd_kcontrol *kcontrol,
 137                         struct snd_ctl_elem_value *ucontrol)
 138 {
 139         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 140
 141         if (rx51_spk_func == ucontrol->value.integer.value[0])
 142                 return 0;
 143
 144         rx51_spk_func = ucontrol->value.integer.value[0];
 145         rx51_ext_control(&card->dapm);
 146
 147         return 1;
 148 }
 149
 150 static int rx51_spk_event(struct snd_soc_dapm_widget *w,
 151                           struct snd_kcontrol *k, int event)
 152 {
 153         if (SND_SOC_DAPM_EVENT_ON(event))
 154                 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 1);
 155         else
 156                 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 0);
 157
 158         return 0;
 159 }
 160
 161 static int rx51_hp_event(struct snd_soc_dapm_widget *w,
 162                          struct snd_kcontrol *k, int event)
 163 {
 164         struct snd_soc_codec *codec = w->dapm->codec;
 165
 166         if (SND_SOC_DAPM_EVENT_ON(event))
 167                 tpa6130a2_stereo_enable(codec, 1);
 168         else
 169                 tpa6130a2_stereo_enable(codec, 0);
 170
 171         return 0;
 172 }
 173
 174 static int rx51_get_input(struct snd_kcontrol *kcontrol,
 175                           struct snd_ctl_elem_value *ucontrol)
 176 {
 177         ucontrol->value.integer.value[0] = rx51_dmic_func;
 178
 179         return 0;
 180 }
 181
 182 static int rx51_set_input(struct snd_kcontrol *kcontrol,
 183                           struct snd_ctl_elem_value *ucontrol)
 184 {
 185         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 186
 187         if (rx51_dmic_func == ucontrol->value.integer.value[0])
 188                 return 0;
 189
 190         rx51_dmic_func = ucontrol->value.integer.value[0];
 191         rx51_ext_control(&card->dapm);
 192
 193         return 1;
 194 }
 195
 196 static int rx51_get_jack(struct snd_kcontrol *kcontrol,
 197                          struct snd_ctl_elem_value *ucontrol)
 198 {
 199         ucontrol->value.integer.value[0] = rx51_jack_func;
 200
 201         return 0;
 202 }
 203
 204 static int rx51_set_jack(struct snd_kcontrol *kcontrol,
 205                          struct snd_ctl_elem_value *ucontrol)
 206 {
 207         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 208
 209         if (rx51_jack_func == ucontrol->value.integer.value[0])
 210                 return 0;
 211
 212         rx51_jack_func = ucontrol->value.integer.value[0];
 213         rx51_ext_control(&card->dapm);
 214
 215         return 1;
 216 }
 217
 218 static struct snd_soc_jack rx51_av_jack;
 219
 220 static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
 221         {
 222                 .gpio = RX51_JACK_DETECT_GPIO,
 223                 .name = "avdet-gpio",
 224                 .report = SND_JACK_HEADSET,
 225                 .invert = 1,
 226                 .debounce_time = 200,
 227         },
 228 };
 229
 230 static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
 231         SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
 232         SND_SOC_DAPM_MIC("DMic", NULL),
 233         SND_SOC_DAPM_HP("Headphone Jack", rx51_hp_event),
 234         SND_SOC_DAPM_MIC("HS Mic", NULL),
 235         SND_SOC_DAPM_LINE("FM Transmitter", NULL),
 236 };
 237
 238 static const struct snd_soc_dapm_widget aic34_dapm_widgetsb[] = {
 239         SND_SOC_DAPM_SPK("Earphone", NULL),
 240 };
 241
 242 static const struct snd_soc_dapm_route audio_map[] = {
 243         {"Ext Spk", NULL, "HPLOUT"},
 244         {"Ext Spk", NULL, "HPROUT"},
 245         {"Headphone Jack", NULL, "LLOUT"},
 246         {"Headphone Jack", NULL, "RLOUT"},
 247         {"FM Transmitter", NULL, "LLOUT"},
 248         {"FM Transmitter", NULL, "RLOUT"},
 249
 250         {"DMic Rate 64", NULL, "Mic Bias"},
 251         {"Mic Bias", NULL, "DMic"},
 252 };
 253
 254 static const struct snd_soc_dapm_route audio_mapb[] = {
 255         {"b LINE2R", NULL, "MONO_LOUT"},
 256         {"Earphone", NULL, "b HPLOUT"},
 257
 258         {"LINE1L", NULL, "b Mic Bias"},
 259         {"b Mic Bias", NULL, "HS Mic"}
 260 };
 261
 262 static const char *spk_function[] = {"Off", "On"};
 263 static const char *input_function[] = {"ADC", "Digital Mic"};
 264 static const char *jack_function[] = {"Off", "TV-OUT", "Headphone", "Headset"};
 265
 266 static const struct soc_enum rx51_enum[] = {
 267         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
 268         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
 269         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
 270 };
 271
 272 static const struct snd_kcontrol_new aic34_rx51_controls[] = {
 273         SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
 274                      rx51_get_spk, rx51_set_spk),
 275         SOC_ENUM_EXT("Input Select",  rx51_enum[1],
 276                      rx51_get_input, rx51_set_input),
 277         SOC_ENUM_EXT("Jack Function", rx51_enum[2],
 278                      rx51_get_jack, rx51_set_jack),
 279         SOC_DAPM_PIN_SWITCH("FM Transmitter"),
 280 };
 281
 282 static const struct snd_kcontrol_new aic34_rx51_controlsb[] = {
 283         SOC_DAPM_PIN_SWITCH("Earphone"),
 284 };
 285
 286 static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
 287 {
 288         struct snd_soc_codec *codec = rtd->codec;
 289         struct snd_soc_dapm_context *dapm = &codec->dapm;
 290         int err;
 291
 292         /* Set up NC codec pins */
 293         snd_soc_dapm_nc_pin(dapm, "MIC3L");
 294         snd_soc_dapm_nc_pin(dapm, "MIC3R");
 295         snd_soc_dapm_nc_pin(dapm, "LINE1R");
 296
 297         /* Add RX-51 specific controls */
 298         err = snd_soc_add_card_controls(rtd->card, aic34_rx51_controls,
 299                                    ARRAY_SIZE(aic34_rx51_controls));
 300         if (err < 0)
 301                 return err;
 302
 303         /* Add RX-51 specific widgets */
 304         snd_soc_dapm_new_controls(dapm, aic34_dapm_widgets,
 305                                   ARRAY_SIZE(aic34_dapm_widgets));
 306
 307         /* Set up RX-51 specific audio path audio_map */
 308         snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
 309
 310         err = tpa6130a2_add_controls(codec);
 311         if (err < 0)
 312                 return err;
 313         snd_soc_limit_volume(codec, "TPA6130A2 Headphone Playback Volume", 42);
 314
 315         err = omap_mcbsp_st_add_controls(rtd);
 316         if (err < 0)
 317                 return err;
 318
 319         /* AV jack detection */
 320         err = snd_soc_jack_new(codec, "AV Jack",
 321                                SND_JACK_HEADSET | SND_JACK_VIDEOOUT,
 322                                &rx51_av_jack);
 323         if (err)
 324                 return err;
 325         err = snd_soc_jack_add_gpios(&rx51_av_jack,
 326                                      ARRAY_SIZE(rx51_av_jack_gpios),
 327                                      rx51_av_jack_gpios);
 328
 329         return err;
 330 }
 331
 332 static int rx51_aic34b_init(struct snd_soc_dapm_context *dapm)
 333 {
 334         int err;
 335
 336         err = snd_soc_add_card_controls(dapm->card, aic34_rx51_controlsb,
 337                                    ARRAY_SIZE(aic34_rx51_controlsb));
 338         if (err < 0)
 339                 return err;
 340
 341         err = snd_soc_dapm_new_controls(dapm, aic34_dapm_widgetsb,
 342                                         ARRAY_SIZE(aic34_dapm_widgetsb));
 343         if (err < 0)
 344                 return 0;
 345
 346         return snd_soc_dapm_add_routes(dapm, audio_mapb,
 347                                        ARRAY_SIZE(audio_mapb));
 348 }
 349
 350 /* Digital audio interface glue - connects codec <--> CPU */
 351 static struct snd_soc_dai_link rx51_dai[] = {
 352         {
 353                 .name = "TLV320AIC34",
 354                 .stream_name = "AIC34",
 355                 .cpu_dai_name = "omap-mcbsp.2",
 356                 .codec_dai_name = "tlv320aic3x-hifi",
 357                 .platform_name = "omap-pcm-audio",
 358                 .codec_name = "tlv320aic3x-codec.2-0018",
 359                 .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF |
 360                            SND_SOC_DAIFMT_CBM_CFM,
 361                 .init = rx51_aic34_init,
 362                 .ops = &rx51_ops,
 363         },
 364 };
 365
 366 static struct snd_soc_aux_dev rx51_aux_dev[] = {
 367         {
 368                 .name = "TLV320AIC34b",
 369                 .codec_name = "tlv320aic3x-codec.2-0019",
 370                 .init = rx51_aic34b_init,
 371         },
 372 };
 373
 374 static struct snd_soc_codec_conf rx51_codec_conf[] = {
 375         {
 376                 .dev_name = "tlv320aic3x-codec.2-0019",
 377                 .name_prefix = "b",
 378         },
 379 };
 380
 381 /* Audio card */
 382 static struct snd_soc_card rx51_sound_card = {
 383         .name = "RX-51",
 384         .owner = THIS_MODULE,
 385         .dai_link = rx51_dai,
 386         .num_links = ARRAY_SIZE(rx51_dai),
 387         .aux_dev = rx51_aux_dev,
 388         .num_aux_devs = ARRAY_SIZE(rx51_aux_dev),
 389         .codec_conf = rx51_codec_conf,
 390         .num_configs = ARRAY_SIZE(rx51_codec_conf),
 391 };
 392
 393 static struct platform_device *rx51_snd_device;
 394
 395 static int __init rx51_soc_init(void)
 396 {
 397         int err;
 398
 399         if (!machine_is_nokia_rx51() && !of_machine_is_compatible("nokia,omap3-n900"))
 400                 return -ENODEV;
 401
 402         err = gpio_request_one(RX51_TVOUT_SEL_GPIO,
 403                                GPIOF_DIR_OUT | GPIOF_INIT_LOW, "tvout_sel");
 404         if (err)
 405                 goto err_gpio_tvout_sel;
 406         err = gpio_request_one(RX51_ECI_SW_GPIO,
 407                                GPIOF_DIR_OUT | GPIOF_INIT_HIGH, "eci_sw");
 408         if (err)
 409                 goto err_gpio_eci_sw;
 410
 411         rx51_snd_device = platform_device_alloc("soc-audio", -1);
 412         if (!rx51_snd_device) {
 413                 err = -ENOMEM;
 414                 goto err1;
 415         }
 416
 417         platform_set_drvdata(rx51_snd_device, &rx51_sound_card);
 418
 419         err = platform_device_add(rx51_snd_device);
 420         if (err)
 421                 goto err2;
 422
 423         return 0;
 424 err2:
 425         platform_device_put(rx51_snd_device);
 426 err1:
 427         gpio_free(RX51_ECI_SW_GPIO);
 428 err_gpio_eci_sw:
 429         gpio_free(RX51_TVOUT_SEL_GPIO);
 430 err_gpio_tvout_sel:
 431
 432         return err;
 433 }
 434
 435 static void __exit rx51_soc_exit(void)
 436 {
 437         snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
 438                                 rx51_av_jack_gpios);
 439
 440         platform_device_unregister(rx51_snd_device);
 441         gpio_free(RX51_ECI_SW_GPIO);
 442         gpio_free(RX51_TVOUT_SEL_GPIO);
 443 }
 444
 445 module_init(rx51_soc_init);
 446 module_exit(rx51_soc_exit);
 447
 448 MODULE_AUTHOR("Nokia Corporation");
 449 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
 450 MODULE_LICENSE("GPL");