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 <sound/core.h>
  30 #include <sound/jack.h>
  31 #include <sound/pcm.h>
  32 #include <sound/soc.h>
  33 #include <plat/mcbsp.h>
  34 #include "../codecs/tpa6130a2.h"
  35
  36 #include <asm/mach-types.h>
  37
  38 #include "omap-mcbsp.h"
  39 #include "omap-pcm.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_codec *codec)
  62 {
  63         struct snd_soc_dapm_context *dapm = &codec->dapm;
  64         int hp = 0, hs = 0, tvout = 0;
  65
  66         switch (rx51_jack_func) {
  67         case RX51_JACK_TVOUT:
  68                 tvout = 1;
  69                 hp = 1;
  70                 break;
  71         case RX51_JACK_HS:
  72                 hs = 1;
  73         case RX51_JACK_HP:
  74                 hp = 1;
  75                 break;
  76         }
  77
  78         if (rx51_spk_func)
  79                 snd_soc_dapm_enable_pin(dapm, "Ext Spk");
  80         else
  81                 snd_soc_dapm_disable_pin(dapm, "Ext Spk");
  82         if (rx51_dmic_func)
  83                 snd_soc_dapm_enable_pin(dapm, "DMic");
  84         else
  85                 snd_soc_dapm_disable_pin(dapm, "DMic");
  86         if (hp)
  87                 snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
  88         else
  89                 snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
  90         if (hs)
  91                 snd_soc_dapm_enable_pin(dapm, "HS Mic");
  92         else
  93                 snd_soc_dapm_disable_pin(dapm, "HS Mic");
  94
  95         gpio_set_value(RX51_TVOUT_SEL_GPIO, tvout);
  96
  97         snd_soc_dapm_sync(dapm);
  98 }
  99
 100 static int rx51_startup(struct snd_pcm_substream *substream)
 101 {
 102         struct snd_pcm_runtime *runtime = substream->runtime;
 103         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 104         struct snd_soc_codec *codec = rtd->codec;
 105
 106         snd_pcm_hw_constraint_minmax(runtime,
 107                                      SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
 108         rx51_ext_control(codec);
 109
 110         return 0;
 111 }
 112
 113 static int rx51_hw_params(struct snd_pcm_substream *substream,
 114         struct snd_pcm_hw_params *params)
 115 {
 116         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 117         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 118         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 119         int err;
 120
 121         /* Set codec DAI configuration */
 122         err = snd_soc_dai_set_fmt(codec_dai,
 123                                   SND_SOC_DAIFMT_DSP_A |
 124                                   SND_SOC_DAIFMT_IB_NF |
 125                                   SND_SOC_DAIFMT_CBM_CFM);
 126         if (err < 0)
 127                 return err;
 128
 129         /* Set cpu DAI configuration */
 130         err = snd_soc_dai_set_fmt(cpu_dai,
 131                                   SND_SOC_DAIFMT_DSP_A |
 132                                   SND_SOC_DAIFMT_IB_NF |
 133                                   SND_SOC_DAIFMT_CBM_CFM);
 134         if (err < 0)
 135                 return err;
 136
 137         /* Set the codec system clock for DAC and ADC */
 138         return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
 139                                       SND_SOC_CLOCK_IN);
 140 }
 141
 142 static struct snd_soc_ops rx51_ops = {
 143         .startup = rx51_startup,
 144         .hw_params = rx51_hw_params,
 145 };
 146
 147 static int rx51_get_spk(struct snd_kcontrol *kcontrol,
 148                         struct snd_ctl_elem_value *ucontrol)
 149 {
 150         ucontrol->value.integer.value[0] = rx51_spk_func;
 151
 152         return 0;
 153 }
 154
 155 static int rx51_set_spk(struct snd_kcontrol *kcontrol,
 156                         struct snd_ctl_elem_value *ucontrol)
 157 {
 158         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 159
 160         if (rx51_spk_func == ucontrol->value.integer.value[0])
 161                 return 0;
 162
 163         rx51_spk_func = ucontrol->value.integer.value[0];
 164         rx51_ext_control(codec);
 165
 166         return 1;
 167 }
 168
 169 static int rx51_spk_event(struct snd_soc_dapm_widget *w,
 170                           struct snd_kcontrol *k, int event)
 171 {
 172         if (SND_SOC_DAPM_EVENT_ON(event))
 173                 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 1);
 174         else
 175                 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 0);
 176
 177         return 0;
 178 }
 179
 180 static int rx51_hp_event(struct snd_soc_dapm_widget *w,
 181                          struct snd_kcontrol *k, int event)
 182 {
 183         struct snd_soc_codec *codec = w->dapm->codec;
 184
 185         if (SND_SOC_DAPM_EVENT_ON(event))
 186                 tpa6130a2_stereo_enable(codec, 1);
 187         else
 188                 tpa6130a2_stereo_enable(codec, 0);
 189
 190         return 0;
 191 }
 192
 193 static int rx51_get_input(struct snd_kcontrol *kcontrol,
 194                           struct snd_ctl_elem_value *ucontrol)
 195 {
 196         ucontrol->value.integer.value[0] = rx51_dmic_func;
 197
 198         return 0;
 199 }
 200
 201 static int rx51_set_input(struct snd_kcontrol *kcontrol,
 202                           struct snd_ctl_elem_value *ucontrol)
 203 {
 204         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 205
 206         if (rx51_dmic_func == ucontrol->value.integer.value[0])
 207                 return 0;
 208
 209         rx51_dmic_func = ucontrol->value.integer.value[0];
 210         rx51_ext_control(codec);
 211
 212         return 1;
 213 }
 214
 215 static int rx51_get_jack(struct snd_kcontrol *kcontrol,
 216                          struct snd_ctl_elem_value *ucontrol)
 217 {
 218         ucontrol->value.integer.value[0] = rx51_jack_func;
 219
 220         return 0;
 221 }
 222
 223 static int rx51_set_jack(struct snd_kcontrol *kcontrol,
 224                          struct snd_ctl_elem_value *ucontrol)
 225 {
 226         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 227
 228         if (rx51_jack_func == ucontrol->value.integer.value[0])
 229                 return 0;
 230
 231         rx51_jack_func = ucontrol->value.integer.value[0];
 232         rx51_ext_control(codec);
 233
 234         return 1;
 235 }
 236
 237 static struct snd_soc_jack rx51_av_jack;
 238
 239 static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
 240         {
 241                 .gpio = RX51_JACK_DETECT_GPIO,
 242                 .name = "avdet-gpio",
 243                 .report = SND_JACK_HEADSET,
 244                 .invert = 1,
 245                 .debounce_time = 200,
 246         },
 247 };
 248
 249 static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
 250         SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
 251         SND_SOC_DAPM_MIC("DMic", NULL),
 252         SND_SOC_DAPM_HP("Headphone Jack", rx51_hp_event),
 253         SND_SOC_DAPM_MIC("HS Mic", NULL),
 254         SND_SOC_DAPM_LINE("FM Transmitter", NULL),
 255 };
 256
 257 static const struct snd_soc_dapm_widget aic34_dapm_widgetsb[] = {
 258         SND_SOC_DAPM_SPK("Earphone", NULL),
 259 };
 260
 261 static const struct snd_soc_dapm_route audio_map[] = {
 262         {"Ext Spk", NULL, "HPLOUT"},
 263         {"Ext Spk", NULL, "HPROUT"},
 264         {"Headphone Jack", NULL, "LLOUT"},
 265         {"Headphone Jack", NULL, "RLOUT"},
 266         {"FM Transmitter", NULL, "LLOUT"},
 267         {"FM Transmitter", NULL, "RLOUT"},
 268
 269         {"DMic Rate 64", NULL, "Mic Bias 2V"},
 270         {"Mic Bias 2V", NULL, "DMic"},
 271 };
 272
 273 static const struct snd_soc_dapm_route audio_mapb[] = {
 274         {"b LINE2R", NULL, "MONO_LOUT"},
 275         {"Earphone", NULL, "b HPLOUT"},
 276
 277         {"LINE1L", NULL, "b Mic Bias 2.5V"},
 278         {"b Mic Bias 2.5V", NULL, "HS Mic"}
 279 };
 280
 281 static const char *spk_function[] = {"Off", "On"};
 282 static const char *input_function[] = {"ADC", "Digital Mic"};
 283 static const char *jack_function[] = {"Off", "TV-OUT", "Headphone", "Headset"};
 284
 285 static const struct soc_enum rx51_enum[] = {
 286         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
 287         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
 288         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
 289 };
 290
 291 static const struct snd_kcontrol_new aic34_rx51_controls[] = {
 292         SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
 293                      rx51_get_spk, rx51_set_spk),
 294         SOC_ENUM_EXT("Input Select",  rx51_enum[1],
 295                      rx51_get_input, rx51_set_input),
 296         SOC_ENUM_EXT("Jack Function", rx51_enum[2],
 297                      rx51_get_jack, rx51_set_jack),
 298         SOC_DAPM_PIN_SWITCH("FM Transmitter"),
 299 };
 300
 301 static const struct snd_kcontrol_new aic34_rx51_controlsb[] = {
 302         SOC_DAPM_PIN_SWITCH("Earphone"),
 303 };
 304
 305 static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
 306 {
 307         struct snd_soc_codec *codec = rtd->codec;
 308         struct snd_soc_dapm_context *dapm = &codec->dapm;
 309         int err;
 310
 311         /* Set up NC codec pins */
 312         snd_soc_dapm_nc_pin(dapm, "MIC3L");
 313         snd_soc_dapm_nc_pin(dapm, "MIC3R");
 314         snd_soc_dapm_nc_pin(dapm, "LINE1R");
 315
 316         /* Add RX-51 specific controls */
 317         err = snd_soc_add_controls(codec, aic34_rx51_controls,
 318                                    ARRAY_SIZE(aic34_rx51_controls));
 319         if (err < 0)
 320                 return err;
 321
 322         /* Add RX-51 specific widgets */
 323         snd_soc_dapm_new_controls(dapm, aic34_dapm_widgets,
 324                                   ARRAY_SIZE(aic34_dapm_widgets));
 325
 326         /* Set up RX-51 specific audio path audio_map */
 327         snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
 328
 329         err = tpa6130a2_add_controls(codec);
 330         if (err < 0)
 331                 return err;
 332         snd_soc_limit_volume(codec, "TPA6130A2 Headphone Playback Volume", 42);
 333
 334         err = omap_mcbsp_st_add_controls(codec, 1);
 335         if (err < 0)
 336                 return err;
 337
 338         snd_soc_dapm_sync(dapm);
 339
 340         /* AV jack detection */
 341         err = snd_soc_jack_new(codec, "AV Jack",
 342                                SND_JACK_HEADSET | SND_JACK_VIDEOOUT,
 343                                &rx51_av_jack);
 344         if (err)
 345                 return err;
 346         err = snd_soc_jack_add_gpios(&rx51_av_jack,
 347                                      ARRAY_SIZE(rx51_av_jack_gpios),
 348                                      rx51_av_jack_gpios);
 349
 350         return err;
 351 }
 352
 353 static int rx51_aic34b_init(struct snd_soc_dapm_context *dapm)
 354 {
 355         int err;
 356
 357         err = snd_soc_add_controls(dapm->codec, aic34_rx51_controlsb,
 358                                    ARRAY_SIZE(aic34_rx51_controlsb));
 359         if (err < 0)
 360                 return err;
 361
 362         err = snd_soc_dapm_new_controls(dapm, aic34_dapm_widgetsb,
 363                                         ARRAY_SIZE(aic34_dapm_widgetsb));
 364         if (err < 0)
 365                 return 0;
 366
 367         return snd_soc_dapm_add_routes(dapm, audio_mapb,
 368                                        ARRAY_SIZE(audio_mapb));
 369 }
 370
 371 /* Digital audio interface glue - connects codec <--> CPU */
 372 static struct snd_soc_dai_link rx51_dai[] = {
 373         {
 374                 .name = "TLV320AIC34",
 375                 .stream_name = "AIC34",
 376                 .cpu_dai_name = "omap-mcbsp-dai.1",
 377                 .codec_dai_name = "tlv320aic3x-hifi",
 378                 .platform_name = "omap-pcm-audio",
 379                 .codec_name = "tlv320aic3x-codec.2-0018",
 380                 .init = rx51_aic34_init,
 381                 .ops = &rx51_ops,
 382         },
 383 };
 384
 385 struct snd_soc_aux_dev rx51_aux_dev[] = {
 386         {
 387                 .name = "TLV320AIC34b",
 388                 .codec_name = "tlv320aic3x-codec.2-0019",
 389                 .init = rx51_aic34b_init,
 390         },
 391 };
 392
 393 static struct snd_soc_codec_conf rx51_codec_conf[] = {
 394         {
 395                 .dev_name = "tlv320aic3x-codec.2-0019",
 396                 .name_prefix = "b",
 397         },
 398 };
 399
 400 /* Audio card */
 401 static struct snd_soc_card rx51_sound_card = {
 402         .name = "RX-51",
 403         .dai_link = rx51_dai,
 404         .num_links = ARRAY_SIZE(rx51_dai),
 405         .aux_dev = rx51_aux_dev,
 406         .num_aux_devs = ARRAY_SIZE(rx51_aux_dev),
 407         .codec_conf = rx51_codec_conf,
 408         .num_configs = ARRAY_SIZE(rx51_codec_conf),
 409 };
 410
 411 static struct platform_device *rx51_snd_device;
 412
 413 static int __init rx51_soc_init(void)
 414 {
 415         int err;
 416
 417         if (!machine_is_nokia_rx51())
 418                 return -ENODEV;
 419
 420         err = gpio_request_one(RX51_TVOUT_SEL_GPIO,
 421                                GPIOF_DIR_OUT | GPIOF_INIT_LOW, "tvout_sel");
 422         if (err)
 423                 goto err_gpio_tvout_sel;
 424         err = gpio_request_one(RX51_ECI_SW_GPIO,
 425                                GPIOF_DIR_OUT | GPIOF_INIT_HIGH, "eci_sw");
 426         if (err)
 427                 goto err_gpio_eci_sw;
 428
 429         rx51_snd_device = platform_device_alloc("soc-audio", -1);
 430         if (!rx51_snd_device) {
 431                 err = -ENOMEM;
 432                 goto err1;
 433         }
 434
 435         platform_set_drvdata(rx51_snd_device, &rx51_sound_card);
 436
 437         err = platform_device_add(rx51_snd_device);
 438         if (err)
 439                 goto err2;
 440
 441         return 0;
 442 err2:
 443         platform_device_put(rx51_snd_device);
 444 err1:
 445         gpio_free(RX51_ECI_SW_GPIO);
 446 err_gpio_eci_sw:
 447         gpio_free(RX51_TVOUT_SEL_GPIO);
 448 err_gpio_tvout_sel:
 449
 450         return err;
 451 }
 452
 453 static void __exit rx51_soc_exit(void)
 454 {
 455         snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
 456                                 rx51_av_jack_gpios);
 457
 458         platform_device_unregister(rx51_snd_device);
 459         gpio_free(RX51_ECI_SW_GPIO);
 460         gpio_free(RX51_TVOUT_SEL_GPIO);
 461 }
 462
 463 module_init(rx51_soc_init);
 464 module_exit(rx51_soc_exit);
 465
 466 MODULE_AUTHOR("Nokia Corporation");
 467 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
 468 MODULE_LICENSE("GPL");