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 <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
  51 enum {
  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
  58 static int rx51_spk_func;
  59 static int rx51_dmic_func;
  60 static int rx51_jack_func;
  61
  62 static 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
 101 static 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
 114 static 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
 125 static struct snd_soc_ops rx51_ops = {
 126         .startup = rx51_startup,
 127         .hw_params = rx51_hw_params,
 128 };
 129
 130 static 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
 138 static 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
 152 static 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
 163 static 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
 176 static 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
 184 static 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
 198 static 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
 206 static 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
 220 static struct snd_soc_jack rx51_av_jack;
 221
 222 static 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
 232 static 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
 240 static const struct snd_soc_dapm_widget aic34_dapm_widgetsb[] = {
 241         SND_SOC_DAPM_SPK("Earphone", NULL),
 242 };
 243
 244 static 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
 256 static 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
 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", "Headset"};
 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         SOC_DAPM_PIN_SWITCH("FM Transmitter"),
 282 };
 283
 284 static const struct snd_kcontrol_new aic34_rx51_controlsb[] = {
 285         SOC_DAPM_PIN_SWITCH("Earphone"),
 286 };
 287
 288 static 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
 334 static 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 */
 353 static 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
 368 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
 376 static 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 */
 384 static struct snd_soc_card rx51_sound_card = {
 385         .name = "RX-51",
 386         .dai_link = rx51_dai,
 387         .num_links = ARRAY_SIZE(rx51_dai),
 388         .aux_dev = rx51_aux_dev,
 389         .num_aux_devs = ARRAY_SIZE(rx51_aux_dev),
 390         .codec_conf = rx51_codec_conf,
 391         .num_configs = ARRAY_SIZE(rx51_codec_conf),
 392 };
 393
 394 static struct platform_device *rx51_snd_device;
 395
 396 static int __init rx51_soc_init(void)
 397 {
 398         int err;
 399
 400         if (!machine_is_nokia_rx51())
 401                 return -ENODEV;
 402
 403         err = gpio_request_one(RX51_TVOUT_SEL_GPIO,
 404                                GPIOF_DIR_OUT | GPIOF_INIT_LOW, "tvout_sel");
 405         if (err)
 406                 goto err_gpio_tvout_sel;
 407         err = gpio_request_one(RX51_ECI_SW_GPIO,
 408                                GPIOF_DIR_OUT | GPIOF_INIT_HIGH, "eci_sw");
 409         if (err)
 410                 goto err_gpio_eci_sw;
 411
 412         rx51_snd_device = platform_device_alloc("soc-audio", -1);
 413         if (!rx51_snd_device) {
 414                 err = -ENOMEM;
 415                 goto err1;
 416         }
 417
 418         platform_set_drvdata(rx51_snd_device, &rx51_sound_card);
 419
 420         err = platform_device_add(rx51_snd_device);
 421         if (err)
 422                 goto err2;
 423
 424         return 0;
 425 err2:
 426         platform_device_put(rx51_snd_device);
 427 err1:
 428         gpio_free(RX51_ECI_SW_GPIO);
 429 err_gpio_eci_sw:
 430         gpio_free(RX51_TVOUT_SEL_GPIO);
 431 err_gpio_tvout_sel:
 432
 433         return err;
 434 }
 435
 436 static void __exit rx51_soc_exit(void)
 437 {
 438         snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
 439                                 rx51_av_jack_gpios);
 440
 441         platform_device_unregister(rx51_snd_device);
 442         gpio_free(RX51_ECI_SW_GPIO);
 443         gpio_free(RX51_TVOUT_SEL_GPIO);
 444 }
 445
 446 module_init(rx51_soc_init);
 447 module_exit(rx51_soc_exit);
 448
 449 MODULE_AUTHOR("Nokia Corporation");
 450 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
 451 MODULE_LICENSE("GPL");