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 <plat/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
  51enum {
  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
  58static int rx51_spk_func;
  59static int rx51_dmic_func;
  60static int rx51_jack_func;
  61
  62static void rx51_ext_control(struct snd_soc_codec *codec)
  63{
  64        struct snd_soc_dapm_context *dapm = &codec->dapm;
  65        int hp = 0, hs = 0, tvout = 0;
  66
  67        switch (rx51_jack_func) {
  68        case RX51_JACK_TVOUT:
  69                tvout = 1;
  70                hp = 1;
  71                break;
  72        case RX51_JACK_HS:
  73                hs = 1;
  74        case RX51_JACK_HP:
  75                hp = 1;
  76                break;
  77        }
  78
  79        if (rx51_spk_func)
  80                snd_soc_dapm_enable_pin(dapm, "Ext Spk");
  81        else
  82                snd_soc_dapm_disable_pin(dapm, "Ext Spk");
  83        if (rx51_dmic_func)
  84                snd_soc_dapm_enable_pin(dapm, "DMic");
  85        else
  86                snd_soc_dapm_disable_pin(dapm, "DMic");
  87        if (hp)
  88                snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
  89        else
  90                snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
  91        if (hs)
  92                snd_soc_dapm_enable_pin(dapm, "HS Mic");
  93        else
  94                snd_soc_dapm_disable_pin(dapm, "HS Mic");
  95
  96        gpio_set_value(RX51_TVOUT_SEL_GPIO, tvout);
  97
  98        snd_soc_dapm_sync(dapm);
  99}
 100
 101static int rx51_startup(struct snd_pcm_substream *substream)
 102{
 103        struct snd_pcm_runtime *runtime = substream->runtime;
 104        struct snd_soc_pcm_runtime *rtd = substream->private_data;
 105        struct snd_soc_codec *codec = rtd->codec;
 106
 107        snd_pcm_hw_constraint_minmax(runtime,
 108                                     SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
 109        rx51_ext_control(codec);
 110
 111        return 0;
 112}
 113
 114static int rx51_hw_params(struct snd_pcm_substream *substream,
 115        struct snd_pcm_hw_params *params)
 116{
 117        struct snd_soc_pcm_runtime *rtd = substream->private_data;
 118        struct snd_soc_dai *codec_dai = rtd->codec_dai;
 119
 120        /* Set the codec system clock for DAC and ADC */
 121        return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
 122                                      SND_SOC_CLOCK_IN);
 123}
 124
 125static struct snd_soc_ops rx51_ops = {
 126        .startup = rx51_startup,
 127        .hw_params = rx51_hw_params,
 128};
 129
 130static int rx51_get_spk(struct snd_kcontrol *kcontrol,
 131                        struct snd_ctl_elem_value *ucontrol)
 132{
 133        ucontrol->value.integer.value[0] = rx51_spk_func;
 134
 135        return 0;
 136}
 137
 138static int rx51_set_spk(struct snd_kcontrol *kcontrol,
 139                        struct snd_ctl_elem_value *ucontrol)
 140{
 141        struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 142
 143        if (rx51_spk_func == ucontrol->value.integer.value[0])
 144                return 0;
 145
 146        rx51_spk_func = ucontrol->value.integer.value[0];
 147        rx51_ext_control(codec);
 148
 149        return 1;
 150}
 151
 152static int rx51_spk_event(struct snd_soc_dapm_widget *w,
 153                          struct snd_kcontrol *k, int event)
 154{
 155        if (SND_SOC_DAPM_EVENT_ON(event))
 156                gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 1);
 157        else
 158                gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 0);
 159
 160        return 0;
 161}
 162
 163static int rx51_hp_event(struct snd_soc_dapm_widget *w,
 164                         struct snd_kcontrol *k, int event)
 165{
 166        struct snd_soc_codec *codec = w->dapm->codec;
 167
 168        if (SND_SOC_DAPM_EVENT_ON(event))
 169                tpa6130a2_stereo_enable(codec, 1);
 170        else
 171                tpa6130a2_stereo_enable(codec, 0);
 172
 173        return 0;
 174}
 175
 176static int rx51_get_input(struct snd_kcontrol *kcontrol,
 177                          struct snd_ctl_elem_value *ucontrol)
 178{
 179        ucontrol->value.integer.value[0] = rx51_dmic_func;
 180
 181        return 0;
 182}
 183
 184static int rx51_set_input(struct snd_kcontrol *kcontrol,
 185                          struct snd_ctl_elem_value *ucontrol)
 186{
 187        struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 188
 189        if (rx51_dmic_func == ucontrol->value.integer.value[0])
 190                return 0;
 191
 192        rx51_dmic_func = ucontrol->value.integer.value[0];
 193        rx51_ext_control(codec);
 194
 195        return 1;
 196}
 197
 198static int rx51_get_jack(struct snd_kcontrol *kcontrol,
 199                         struct snd_ctl_elem_value *ucontrol)
 200{
 201        ucontrol->value.integer.value[0] = rx51_jack_func;
 202
 203        return 0;
 204}
 205
 206static int rx51_set_jack(struct snd_kcontrol *kcontrol,
 207                         struct snd_ctl_elem_value *ucontrol)
 208{
 209        struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 210
 211        if (rx51_jack_func == ucontrol->value.integer.value[0])
 212                return 0;
 213
 214        rx51_jack_func = ucontrol->value.integer.value[0];
 215        rx51_ext_control(codec);
 216
 217        return 1;
 218}
 219
 220static struct snd_soc_jack rx51_av_jack;
 221
 222static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
 223        {
 224                .gpio = RX51_JACK_DETECT_GPIO,
 225                .name = "avdet-gpio",
 226                .report = SND_JACK_HEADSET,
 227                .invert = 1,
 228                .debounce_time = 200,
 229        },
 230};
 231
 232static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
 233        SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
 234        SND_SOC_DAPM_MIC("DMic", NULL),
 235        SND_SOC_DAPM_HP("Headphone Jack", rx51_hp_event),
 236        SND_SOC_DAPM_MIC("HS Mic", NULL),
 237        SND_SOC_DAPM_LINE("FM Transmitter", NULL),
 238};
 239
 240static const struct snd_soc_dapm_widget aic34_dapm_widgetsb[] = {
 241        SND_SOC_DAPM_SPK("Earphone", NULL),
 242};
 243
 244static const struct snd_soc_dapm_route audio_map[] = {
 245        {"Ext Spk", NULL, "HPLOUT"},
 246        {"Ext Spk", NULL, "HPROUT"},
 247        {"Headphone Jack", NULL, "LLOUT"},
 248        {"Headphone Jack", NULL, "RLOUT"},
 249        {"FM Transmitter", NULL, "LLOUT"},
 250        {"FM Transmitter", NULL, "RLOUT"},
 251
 252        {"DMic Rate 64", NULL, "Mic Bias 2V"},
 253        {"Mic Bias 2V", NULL, "DMic"},
 254};
 255
 256static const struct snd_soc_dapm_route audio_mapb[] = {
 257        {"b LINE2R", NULL, "MONO_LOUT"},
 258        {"Earphone", NULL, "b HPLOUT"},
 259
 260        {"LINE1L", NULL, "b Mic Bias 2.5V"},
 261        {"b Mic Bias 2.5V", NULL, "HS Mic"}
 262};
 263
 264static const char *spk_function[] = {"Off", "On"};
 265static const char *input_function[] = {"ADC", "Digital Mic"};
 266static const char *jack_function[] = {"Off", "TV-OUT", "Headphone", "Headset"};
 267
 268static 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
 274static 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        SOC_DAPM_PIN_SWITCH("FM Transmitter"),
 282};
 283
 284static const struct snd_kcontrol_new aic34_rx51_controlsb[] = {
 285        SOC_DAPM_PIN_SWITCH("Earphone"),
 286};
 287
 288static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
 289{
 290        struct snd_soc_codec *codec = rtd->codec;
 291        struct snd_soc_dapm_context *dapm = &codec->dapm;
 292        int err;
 293
 294        /* Set up NC codec pins */
 295        snd_soc_dapm_nc_pin(dapm, "MIC3L");
 296        snd_soc_dapm_nc_pin(dapm, "MIC3R");
 297        snd_soc_dapm_nc_pin(dapm, "LINE1R");
 298
 299        /* Add RX-51 specific controls */
 300        err = snd_soc_add_controls(codec, aic34_rx51_controls,
 301                                   ARRAY_SIZE(aic34_rx51_controls));
 302        if (err < 0)
 303                return err;
 304
 305        /* Add RX-51 specific widgets */
 306        snd_soc_dapm_new_controls(dapm, aic34_dapm_widgets,
 307                                  ARRAY_SIZE(aic34_dapm_widgets));
 308
 309        /* Set up RX-51 specific audio path audio_map */
 310        snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
 311
 312        err = tpa6130a2_add_controls(codec);
 313        if (err < 0)
 314                return err;
 315        snd_soc_limit_volume(codec, "TPA6130A2 Headphone Playback Volume", 42);
 316
 317        err = omap_mcbsp_st_add_controls(codec, 1);
 318        if (err < 0)
 319                return err;
 320
 321        /* AV jack detection */
 322        err = snd_soc_jack_new(codec, "AV Jack",
 323                               SND_JACK_HEADSET | SND_JACK_VIDEOOUT,
 324                               &rx51_av_jack);
 325        if (err)
 326                return err;
 327        err = snd_soc_jack_add_gpios(&rx51_av_jack,
 328                                     ARRAY_SIZE(rx51_av_jack_gpios),
 329                                     rx51_av_jack_gpios);
 330
 331        return err;
 332}
 333
 334static int rx51_aic34b_init(struct snd_soc_dapm_context *dapm)
 335{
 336        int err;
 337
 338        err = snd_soc_add_controls(dapm->codec, aic34_rx51_controlsb,
 339                                   ARRAY_SIZE(aic34_rx51_controlsb));
 340        if (err < 0)
 341                return err;
 342
 343        err = snd_soc_dapm_new_controls(dapm, aic34_dapm_widgetsb,
 344                                        ARRAY_SIZE(aic34_dapm_widgetsb));
 345        if (err < 0)
 346                return 0;
 347
 348        return snd_soc_dapm_add_routes(dapm, audio_mapb,
 349                                       ARRAY_SIZE(audio_mapb));
 350}
 351
 352/* Digital audio interface glue - connects codec <--> CPU */
 353static struct snd_soc_dai_link rx51_dai[] = {
 354        {
 355                .name = "TLV320AIC34",
 356                .stream_name = "AIC34",
 357                .cpu_dai_name = "omap-mcbsp-dai.1",
 358                .codec_dai_name = "tlv320aic3x-hifi",
 359                .platform_name = "omap-pcm-audio",
 360                .codec_name = "tlv320aic3x-codec.2-0018",
 361                .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF |
 362                           SND_SOC_DAIFMT_CBM_CFM,
 363                .init = rx51_aic34_init,
 364                .ops = &rx51_ops,
 365        },
 366};
 367
 368static struct snd_soc_aux_dev rx51_aux_dev[] = {
 369        {
 370                .name = "TLV320AIC34b",
 371                .codec_name = "tlv320aic3x-codec.2-0019",
 372                .init = rx51_aic34b_init,
 373        },
 374};
 375
 376static struct snd_soc_codec_conf rx51_codec_conf[] = {
 377        {
 378                .dev_name = "tlv320aic3x-codec.2-0019",
 379                .name_prefix = "b",
 380        },
 381};
 382
 383/* Audio card */
 384static struct snd_soc_card rx51_sound_card = {
 385        .name = "RX-51",
 386        .owner = THIS_MODULE,
 387        .dai_link = rx51_dai,
 388        .num_links = ARRAY_SIZE(rx51_dai),
 389        .aux_dev = rx51_aux_dev,
 390        .num_aux_devs = ARRAY_SIZE(rx51_aux_dev),
 391        .codec_conf = rx51_codec_conf,
 392        .num_configs = ARRAY_SIZE(rx51_codec_conf),
 393};
 394
 395static struct platform_device *rx51_snd_device;
 396
 397static int __init rx51_soc_init(void)
 398{
 399        int err;
 400
 401        if (!machine_is_nokia_rx51())
 402                return -ENODEV;
 403
 404        err = gpio_request_one(RX51_TVOUT_SEL_GPIO,
 405                               GPIOF_DIR_OUT | GPIOF_INIT_LOW, "tvout_sel");
 406        if (err)
 407                goto err_gpio_tvout_sel;
 408        err = gpio_request_one(RX51_ECI_SW_GPIO,
 409                               GPIOF_DIR_OUT | GPIOF_INIT_HIGH, "eci_sw");
 410        if (err)
 411                goto err_gpio_eci_sw;
 412
 413        rx51_snd_device = platform_device_alloc("soc-audio", -1);
 414        if (!rx51_snd_device) {
 415                err = -ENOMEM;
 416                goto err1;
 417        }
 418
 419        platform_set_drvdata(rx51_snd_device, &rx51_sound_card);
 420
 421        err = platform_device_add(rx51_snd_device);
 422        if (err)
 423                goto err2;
 424
 425        return 0;
 426err2:
 427        platform_device_put(rx51_snd_device);
 428err1:
 429        gpio_free(RX51_ECI_SW_GPIO);
 430err_gpio_eci_sw:
 431        gpio_free(RX51_TVOUT_SEL_GPIO);
 432err_gpio_tvout_sel:
 433
 434        return err;
 435}
 436
 437static void __exit rx51_soc_exit(void)
 438{
 439        snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
 440                                rx51_av_jack_gpios);
 441
 442        platform_device_unregister(rx51_snd_device);
 443        gpio_free(RX51_ECI_SW_GPIO);
 444        gpio_free(RX51_TVOUT_SEL_GPIO);
 445}
 446
 447module_init(rx51_soc_init);
 448module_exit(rx51_soc_exit);
 449
 450MODULE_AUTHOR("Nokia Corporation");
 451MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
 452MODULE_LICENSE("GPL");
 453
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