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         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
 103 static 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
 116 static 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
 127 static struct snd_soc_ops rx51_ops = {
 128         .startup = rx51_startup,
 129         .hw_params = rx51_hw_params,
 130 };
 131
 132 static 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
 140 static 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
 154 static 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
 165 static 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
 178 static 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
 186 static 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
 200 static 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
 208 static 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
 222 static struct snd_soc_jack rx51_av_jack;
 223
 224 static 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
 234 static 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         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"},
 252         {"Mic Bias", NULL, "DMic"},
 253
 254         {"b LINE2R", NULL, "MONO_LOUT"},
 255         {"Earphone", NULL, "b HPLOUT"},
 256
 257         {"LINE1L", NULL, "b Mic Bias"},
 258         {"b Mic Bias", NULL, "HS Mic"}
 259 };
 260
 261 static const char *spk_function[] = {"Off", "On"};
 262 static const char *input_function[] = {"ADC", "Digital Mic"};
 263 static const char *jack_function[] = {"Off", "TV-OUT", "Headphone", "Headset"};
 264
 265 static const struct soc_enum rx51_enum[] = {
 266         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
 267         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
 268         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
 269 };
 270
 271 static const struct snd_kcontrol_new aic34_rx51_controls[] = {
 272         SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
 273                      rx51_get_spk, rx51_set_spk),
 274         SOC_ENUM_EXT("Input Select",  rx51_enum[1],
 275                      rx51_get_input, rx51_set_input),
 276         SOC_ENUM_EXT("Jack Function", rx51_enum[2],
 277                      rx51_get_jack, rx51_set_jack),
 278         SOC_DAPM_PIN_SWITCH("FM Transmitter"),
 279         SOC_DAPM_PIN_SWITCH("Earphone"),
 280 };
 281
 282 static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
 283 {
 284         struct snd_soc_codec *codec = rtd->codec;
 285         struct snd_soc_dapm_context *dapm = &codec->dapm;
 286         int err;
 287
 288         /* Set up NC codec pins */
 289         snd_soc_dapm_nc_pin(dapm, "MIC3L");
 290         snd_soc_dapm_nc_pin(dapm, "MIC3R");
 291         snd_soc_dapm_nc_pin(dapm, "LINE1R");
 292
 293         err = tpa6130a2_add_controls(codec);
 294         if (err < 0)
 295                 return err;
 296         snd_soc_limit_volume(codec, "TPA6130A2 Headphone Playback Volume", 42);
 297
 298         err = omap_mcbsp_st_add_controls(rtd);
 299         if (err < 0)
 300                 return err;
 301
 302         /* AV jack detection */
 303         err = snd_soc_jack_new(codec, "AV Jack",
 304                                SND_JACK_HEADSET | SND_JACK_VIDEOOUT,
 305                                &rx51_av_jack);
 306         if (err)
 307                 return err;
 308         err = snd_soc_jack_add_gpios(&rx51_av_jack,
 309                                      ARRAY_SIZE(rx51_av_jack_gpios),
 310                                      rx51_av_jack_gpios);
 311
 312         return err;
 313 }
 314
 315 /* Digital audio interface glue - connects codec <--> CPU */
 316 static struct snd_soc_dai_link rx51_dai[] = {
 317         {
 318                 .name = "TLV320AIC34",
 319                 .stream_name = "AIC34",
 320                 .cpu_dai_name = "omap-mcbsp.2",
 321                 .codec_dai_name = "tlv320aic3x-hifi",
 322                 .platform_name = "omap-pcm-audio",
 323                 .codec_name = "tlv320aic3x-codec.2-0018",
 324                 .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF |
 325                            SND_SOC_DAIFMT_CBM_CFM,
 326                 .init = rx51_aic34_init,
 327                 .ops = &rx51_ops,
 328         },
 329 };
 330
 331 static struct snd_soc_aux_dev rx51_aux_dev[] = {
 332         {
 333                 .name = "TLV320AIC34b",
 334                 .codec_name = "tlv320aic3x-codec.2-0019",
 335         },
 336 };
 337
 338 static struct snd_soc_codec_conf rx51_codec_conf[] = {
 339         {
 340                 .dev_name = "tlv320aic3x-codec.2-0019",
 341                 .name_prefix = "b",
 342         },
 343 };
 344
 345 /* Audio card */
 346 static struct snd_soc_card rx51_sound_card = {
 347         .name = "RX-51",
 348         .owner = THIS_MODULE,
 349         .dai_link = rx51_dai,
 350         .num_links = ARRAY_SIZE(rx51_dai),
 351         .aux_dev = rx51_aux_dev,
 352         .num_aux_devs = ARRAY_SIZE(rx51_aux_dev),
 353         .codec_conf = rx51_codec_conf,
 354         .num_configs = ARRAY_SIZE(rx51_codec_conf),
 355
 356         .controls = aic34_rx51_controls,
 357         .num_controls = ARRAY_SIZE(aic34_rx51_controls),
 358         .dapm_widgets = aic34_dapm_widgets,
 359         .num_dapm_widgets = ARRAY_SIZE(aic34_dapm_widgets),
 360         .dapm_routes = audio_map,
 361         .num_dapm_routes = ARRAY_SIZE(audio_map),
 362 };
 363
 364 static struct platform_device *rx51_snd_device;
 365
 366 static int __init rx51_soc_init(void)
 367 {
 368         int err;
 369
 370         if (!machine_is_nokia_rx51() && !of_machine_is_compatible("nokia,omap3-n900"))
 371                 return -ENODEV;
 372
 373         err = gpio_request_one(RX51_TVOUT_SEL_GPIO,
 374                                GPIOF_DIR_OUT | GPIOF_INIT_LOW, "tvout_sel");
 375         if (err)
 376                 goto err_gpio_tvout_sel;
 377         err = gpio_request_one(RX51_ECI_SW_GPIO,
 378                                GPIOF_DIR_OUT | GPIOF_INIT_HIGH, "eci_sw");
 379         if (err)
 380                 goto err_gpio_eci_sw;
 381
 382         rx51_snd_device = platform_device_alloc("soc-audio", -1);
 383         if (!rx51_snd_device) {
 384                 err = -ENOMEM;
 385                 goto err1;
 386         }
 387
 388         platform_set_drvdata(rx51_snd_device, &rx51_sound_card);
 389
 390         err = platform_device_add(rx51_snd_device);
 391         if (err)
 392                 goto err2;
 393
 394         return 0;
 395 err2:
 396         platform_device_put(rx51_snd_device);
 397 err1:
 398         gpio_free(RX51_ECI_SW_GPIO);
 399 err_gpio_eci_sw:
 400         gpio_free(RX51_TVOUT_SEL_GPIO);
 401 err_gpio_tvout_sel:
 402
 403         return err;
 404 }
 405
 406 static void __exit rx51_soc_exit(void)
 407 {
 408         snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
 409                                 rx51_av_jack_gpios);
 410
 411         platform_device_unregister(rx51_snd_device);
 412         gpio_free(RX51_ECI_SW_GPIO);
 413         gpio_free(RX51_TVOUT_SEL_GPIO);
 414 }
 415
 416 module_init(rx51_soc_init);
 417 module_exit(rx51_soc_exit);
 418
 419 MODULE_AUTHOR("Nokia Corporation");
 420 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
 421 MODULE_LICENSE("GPL");