linux/sound/soc/omap/rx51.c
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   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
  50enum {
  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
  57static int rx51_spk_func;
  58static int rx51_dmic_func;
  59static int rx51_jack_func;
  60
  61static 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        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        gpio_set_value(RX51_TVOUT_SEL_GPIO, tvout);
  97
  98        snd_soc_dapm_sync_unlocked(dapm);
  99
 100        snd_soc_dapm_mutex_unlock(dapm);
 101}
 102
 103static 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_minmax(runtime,
 110                                     SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
 111        rx51_ext_control(&card->dapm);
 112
 113        return 0;
 114}
 115
 116static int rx51_hw_params(struct snd_pcm_substream *substream,
 117        struct snd_pcm_hw_params *params)
 118{
 119        struct snd_soc_pcm_runtime *rtd = substream->private_data;
 120        struct snd_soc_dai *codec_dai = rtd->codec_dai;
 121
 122        /* Set the codec system clock for DAC and ADC */
 123        return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
 124                                      SND_SOC_CLOCK_IN);
 125}
 126
 127static struct snd_soc_ops rx51_ops = {
 128        .startup = rx51_startup,
 129        .hw_params = rx51_hw_params,
 130};
 131
 132static int rx51_get_spk(struct snd_kcontrol *kcontrol,
 133                        struct snd_ctl_elem_value *ucontrol)
 134{
 135        ucontrol->value.integer.value[0] = rx51_spk_func;
 136
 137        return 0;
 138}
 139
 140static int rx51_set_spk(struct snd_kcontrol *kcontrol,
 141                        struct snd_ctl_elem_value *ucontrol)
 142{
 143        struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 144
 145        if (rx51_spk_func == ucontrol->value.integer.value[0])
 146                return 0;
 147
 148        rx51_spk_func = ucontrol->value.integer.value[0];
 149        rx51_ext_control(&card->dapm);
 150
 151        return 1;
 152}
 153
 154static int rx51_spk_event(struct snd_soc_dapm_widget *w,
 155                          struct snd_kcontrol *k, int event)
 156{
 157        if (SND_SOC_DAPM_EVENT_ON(event))
 158                gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 1);
 159        else
 160                gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 0);
 161
 162        return 0;
 163}
 164
 165static int rx51_hp_event(struct snd_soc_dapm_widget *w,
 166                         struct snd_kcontrol *k, int event)
 167{
 168        struct snd_soc_codec *codec = w->dapm->codec;
 169
 170        if (SND_SOC_DAPM_EVENT_ON(event))
 171                tpa6130a2_stereo_enable(codec, 1);
 172        else
 173                tpa6130a2_stereo_enable(codec, 0);
 174
 175        return 0;
 176}
 177
 178static int rx51_get_input(struct snd_kcontrol *kcontrol,
 179                          struct snd_ctl_elem_value *ucontrol)
 180{
 181        ucontrol->value.integer.value[0] = rx51_dmic_func;
 182
 183        return 0;
 184}
 185
 186static int rx51_set_input(struct snd_kcontrol *kcontrol,
 187                          struct snd_ctl_elem_value *ucontrol)
 188{
 189        struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 190
 191        if (rx51_dmic_func == ucontrol->value.integer.value[0])
 192                return 0;
 193
 194        rx51_dmic_func = ucontrol->value.integer.value[0];
 195        rx51_ext_control(&card->dapm);
 196
 197        return 1;
 198}
 199
 200static int rx51_get_jack(struct snd_kcontrol *kcontrol,
 201                         struct snd_ctl_elem_value *ucontrol)
 202{
 203        ucontrol->value.integer.value[0] = rx51_jack_func;
 204
 205        return 0;
 206}
 207
 208static int rx51_set_jack(struct snd_kcontrol *kcontrol,
 209                         struct snd_ctl_elem_value *ucontrol)
 210{
 211        struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 212
 213        if (rx51_jack_func == ucontrol->value.integer.value[0])
 214                return 0;
 215
 216        rx51_jack_func = ucontrol->value.integer.value[0];
 217        rx51_ext_control(&card->dapm);
 218
 219        return 1;
 220}
 221
 222static struct snd_soc_jack rx51_av_jack;
 223
 224static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
 225        {
 226                .gpio = RX51_JACK_DETECT_GPIO,
 227                .name = "avdet-gpio",
 228                .report = SND_JACK_HEADSET,
 229                .invert = 1,
 230                .debounce_time = 200,
 231        },
 232};
 233
 234static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
 235        SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
 236        SND_SOC_DAPM_MIC("DMic", NULL),
 237        SND_SOC_DAPM_HP("Headphone Jack", rx51_hp_event),
 238        SND_SOC_DAPM_MIC("HS Mic", NULL),
 239        SND_SOC_DAPM_LINE("FM Transmitter", NULL),
 240};
 241
 242static const struct snd_soc_dapm_widget aic34_dapm_widgetsb[] = {
 243        SND_SOC_DAPM_SPK("Earphone", NULL),
 244};
 245
 246static const struct snd_soc_dapm_route audio_map[] = {
 247        {"Ext Spk", NULL, "HPLOUT"},
 248        {"Ext Spk", NULL, "HPROUT"},
 249        {"Headphone Jack", NULL, "LLOUT"},
 250        {"Headphone Jack", NULL, "RLOUT"},
 251        {"FM Transmitter", NULL, "LLOUT"},
 252        {"FM Transmitter", NULL, "RLOUT"},
 253
 254        {"DMic Rate 64", NULL, "Mic Bias"},
 255        {"Mic Bias", NULL, "DMic"},
 256};
 257
 258static const struct snd_soc_dapm_route audio_mapb[] = {
 259        {"b LINE2R", NULL, "MONO_LOUT"},
 260        {"Earphone", NULL, "b HPLOUT"},
 261
 262        {"LINE1L", NULL, "b Mic Bias"},
 263        {"b Mic Bias", NULL, "HS Mic"}
 264};
 265
 266static const char *spk_function[] = {"Off", "On"};
 267static const char *input_function[] = {"ADC", "Digital Mic"};
 268static const char *jack_function[] = {"Off", "TV-OUT", "Headphone", "Headset"};
 269
 270static const struct soc_enum rx51_enum[] = {
 271        SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
 272        SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
 273        SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
 274};
 275
 276static const struct snd_kcontrol_new aic34_rx51_controls[] = {
 277        SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
 278                     rx51_get_spk, rx51_set_spk),
 279        SOC_ENUM_EXT("Input Select",  rx51_enum[1],
 280                     rx51_get_input, rx51_set_input),
 281        SOC_ENUM_EXT("Jack Function", rx51_enum[2],
 282                     rx51_get_jack, rx51_set_jack),
 283        SOC_DAPM_PIN_SWITCH("FM Transmitter"),
 284};
 285
 286static const struct snd_kcontrol_new aic34_rx51_controlsb[] = {
 287        SOC_DAPM_PIN_SWITCH("Earphone"),
 288};
 289
 290static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
 291{
 292        struct snd_soc_codec *codec = rtd->codec;
 293        struct snd_soc_dapm_context *dapm = &codec->dapm;
 294        int err;
 295
 296        /* Set up NC codec pins */
 297        snd_soc_dapm_nc_pin(dapm, "MIC3L");
 298        snd_soc_dapm_nc_pin(dapm, "MIC3R");
 299        snd_soc_dapm_nc_pin(dapm, "LINE1R");
 300
 301        /* Add RX-51 specific controls */
 302        err = snd_soc_add_card_controls(rtd->card, aic34_rx51_controls,
 303                                   ARRAY_SIZE(aic34_rx51_controls));
 304        if (err < 0)
 305                return err;
 306
 307        /* Add RX-51 specific widgets */
 308        snd_soc_dapm_new_controls(dapm, aic34_dapm_widgets,
 309                                  ARRAY_SIZE(aic34_dapm_widgets));
 310
 311        /* Set up RX-51 specific audio path audio_map */
 312        snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
 313
 314        err = tpa6130a2_add_controls(codec);
 315        if (err < 0)
 316                return err;
 317        snd_soc_limit_volume(codec, "TPA6130A2 Headphone Playback Volume", 42);
 318
 319        err = omap_mcbsp_st_add_controls(rtd);
 320        if (err < 0)
 321                return err;
 322
 323        /* AV jack detection */
 324        err = snd_soc_jack_new(codec, "AV Jack",
 325                               SND_JACK_HEADSET | SND_JACK_VIDEOOUT,
 326                               &rx51_av_jack);
 327        if (err)
 328                return err;
 329        err = snd_soc_jack_add_gpios(&rx51_av_jack,
 330                                     ARRAY_SIZE(rx51_av_jack_gpios),
 331                                     rx51_av_jack_gpios);
 332
 333        return err;
 334}
 335
 336static int rx51_aic34b_init(struct snd_soc_dapm_context *dapm)
 337{
 338        int err;
 339
 340        err = snd_soc_add_card_controls(dapm->card, aic34_rx51_controlsb,
 341                                   ARRAY_SIZE(aic34_rx51_controlsb));
 342        if (err < 0)
 343                return err;
 344
 345        err = snd_soc_dapm_new_controls(dapm, aic34_dapm_widgetsb,
 346                                        ARRAY_SIZE(aic34_dapm_widgetsb));
 347        if (err < 0)
 348                return 0;
 349
 350        return snd_soc_dapm_add_routes(dapm, audio_mapb,
 351                                       ARRAY_SIZE(audio_mapb));
 352}
 353
 354/* Digital audio interface glue - connects codec <--> CPU */
 355static struct snd_soc_dai_link rx51_dai[] = {
 356        {
 357                .name = "TLV320AIC34",
 358                .stream_name = "AIC34",
 359                .cpu_dai_name = "omap-mcbsp.2",
 360                .codec_dai_name = "tlv320aic3x-hifi",
 361                .platform_name = "omap-pcm-audio",
 362                .codec_name = "tlv320aic3x-codec.2-0018",
 363                .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF |
 364                           SND_SOC_DAIFMT_CBM_CFM,
 365                .init = rx51_aic34_init,
 366                .ops = &rx51_ops,
 367        },
 368};
 369
 370static struct snd_soc_aux_dev rx51_aux_dev[] = {
 371        {
 372                .name = "TLV320AIC34b",
 373                .codec_name = "tlv320aic3x-codec.2-0019",
 374                .init = rx51_aic34b_init,
 375        },
 376};
 377
 378static struct snd_soc_codec_conf rx51_codec_conf[] = {
 379        {
 380                .dev_name = "tlv320aic3x-codec.2-0019",
 381                .name_prefix = "b",
 382        },
 383};
 384
 385/* Audio card */
 386static struct snd_soc_card rx51_sound_card = {
 387        .name = "RX-51",
 388        .owner = THIS_MODULE,
 389        .dai_link = rx51_dai,
 390        .num_links = ARRAY_SIZE(rx51_dai),
 391        .aux_dev = rx51_aux_dev,
 392        .num_aux_devs = ARRAY_SIZE(rx51_aux_dev),
 393        .codec_conf = rx51_codec_conf,
 394        .num_configs = ARRAY_SIZE(rx51_codec_conf),
 395};
 396
 397static struct platform_device *rx51_snd_device;
 398
 399static int __init rx51_soc_init(void)
 400{
 401        int err;
 402
 403        if (!machine_is_nokia_rx51() && !of_machine_is_compatible("nokia,omap3-n900"))
 404                return -ENODEV;
 405
 406        err = gpio_request_one(RX51_TVOUT_SEL_GPIO,
 407                               GPIOF_DIR_OUT | GPIOF_INIT_LOW, "tvout_sel");
 408        if (err)
 409                goto err_gpio_tvout_sel;
 410        err = gpio_request_one(RX51_ECI_SW_GPIO,
 411                               GPIOF_DIR_OUT | GPIOF_INIT_HIGH, "eci_sw");
 412        if (err)
 413                goto err_gpio_eci_sw;
 414
 415        rx51_snd_device = platform_device_alloc("soc-audio", -1);
 416        if (!rx51_snd_device) {
 417                err = -ENOMEM;
 418                goto err1;
 419        }
 420
 421        platform_set_drvdata(rx51_snd_device, &rx51_sound_card);
 422
 423        err = platform_device_add(rx51_snd_device);
 424        if (err)
 425                goto err2;
 426
 427        return 0;
 428err2:
 429        platform_device_put(rx51_snd_device);
 430err1:
 431        gpio_free(RX51_ECI_SW_GPIO);
 432err_gpio_eci_sw:
 433        gpio_free(RX51_TVOUT_SEL_GPIO);
 434err_gpio_tvout_sel:
 435
 436        return err;
 437}
 438
 439static void __exit rx51_soc_exit(void)
 440{
 441        snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
 442                                rx51_av_jack_gpios);
 443
 444        platform_device_unregister(rx51_snd_device);
 445        gpio_free(RX51_ECI_SW_GPIO);
 446        gpio_free(RX51_TVOUT_SEL_GPIO);
 447}
 448
 449module_init(rx51_soc_init);
 450module_exit(rx51_soc_exit);
 451
 452MODULE_AUTHOR("Nokia Corporation");
 453MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
 454MODULE_LICENSE("GPL");
 455