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/gpio/consumer.h> 30#include <linux/module.h> 31#include <sound/core.h> 32#include <sound/jack.h> 33#include <sound/pcm.h> 34#include <sound/soc.h> 35#include <linux/platform_data/asoc-ti-mcbsp.h> 36#include "../codecs/tpa6130a2.h" 37 38#include <asm/mach-types.h> 39 40#include "omap-mcbsp.h" 41 42enum { 43 RX51_JACK_DISABLED, 44 RX51_JACK_TVOUT, /* tv-out with stereo output */ 45 RX51_JACK_HP, /* headphone: stereo output, no mic */ 46 RX51_JACK_HS, /* headset: stereo output with mic */ 47}; 48 49struct rx51_audio_pdata { 50 struct gpio_desc *tvout_selection_gpio; 51 struct gpio_desc *jack_detection_gpio; 52 struct gpio_desc *eci_sw_gpio; 53 struct gpio_desc *speaker_amp_gpio; 54}; 55 56static int rx51_spk_func; 57static int rx51_dmic_func; 58static int rx51_jack_func; 59 60static void rx51_ext_control(struct snd_soc_dapm_context *dapm) 61{ 62 struct snd_soc_card *card = dapm->card; 63 struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card); 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 snd_soc_dapm_mutex_lock(dapm); 79 80 if (rx51_spk_func) 81 snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk"); 82 else 83 snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk"); 84 if (rx51_dmic_func) 85 snd_soc_dapm_enable_pin_unlocked(dapm, "DMic"); 86 else 87 snd_soc_dapm_disable_pin_unlocked(dapm, "DMic"); 88 if (hp) 89 snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack"); 90 else 91 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack"); 92 if (hs) 93 snd_soc_dapm_enable_pin_unlocked(dapm, "HS Mic"); 94 else 95 snd_soc_dapm_disable_pin_unlocked(dapm, "HS Mic"); 96 97 gpiod_set_value(pdata->tvout_selection_gpio, tvout); 98 99 snd_soc_dapm_sync_unlocked(dapm); 100 101 snd_soc_dapm_mutex_unlock(dapm); 102} 103 104static int rx51_startup(struct snd_pcm_substream *substream) 105{ 106 struct snd_pcm_runtime *runtime = substream->runtime; 107 struct snd_soc_pcm_runtime *rtd = substream->private_data; 108 struct snd_soc_card *card = rtd->card; 109 110 snd_pcm_hw_constraint_minmax(runtime, 111 SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2); 112 rx51_ext_control(&card->dapm); 113 114 return 0; 115} 116 117static int rx51_hw_params(struct snd_pcm_substream *substream, 118 struct snd_pcm_hw_params *params) 119{ 120 struct snd_soc_pcm_runtime *rtd = substream->private_data; 121 struct snd_soc_dai *codec_dai = rtd->codec_dai; 122 123 /* Set the codec system clock for DAC and ADC */ 124 return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000, 125 SND_SOC_CLOCK_IN); 126} 127 128static struct snd_soc_ops rx51_ops = { 129 .startup = rx51_startup, 130 .hw_params = rx51_hw_params, 131}; 132 133static int rx51_get_spk(struct snd_kcontrol *kcontrol, 134 struct snd_ctl_elem_value *ucontrol) 135{ 136 ucontrol->value.integer.value[0] = rx51_spk_func; 137 138 return 0; 139} 140 141static int rx51_set_spk(struct snd_kcontrol *kcontrol, 142 struct snd_ctl_elem_value *ucontrol) 143{ 144 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); 145 146 if (rx51_spk_func == ucontrol->value.integer.value[0]) 147 return 0; 148 149 rx51_spk_func = ucontrol->value.integer.value[0]; 150 rx51_ext_control(&card->dapm); 151 152 return 1; 153} 154 155static int rx51_spk_event(struct snd_soc_dapm_widget *w, 156 struct snd_kcontrol *k, int event) 157{ 158 struct snd_soc_dapm_context *dapm = w->dapm; 159 struct snd_soc_card *card = dapm->card; 160 struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card); 161 162 gpiod_set_raw_value_cansleep(pdata->speaker_amp_gpio, 163 !!SND_SOC_DAPM_EVENT_ON(event)); 164 165 return 0; 166} 167 168static int rx51_hp_event(struct snd_soc_dapm_widget *w, 169 struct snd_kcontrol *k, int event) 170{ 171 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); 172 173 if (SND_SOC_DAPM_EVENT_ON(event)) 174 tpa6130a2_stereo_enable(codec, 1); 175 else 176 tpa6130a2_stereo_enable(codec, 0); 177 178 return 0; 179} 180 181static int rx51_get_input(struct snd_kcontrol *kcontrol, 182 struct snd_ctl_elem_value *ucontrol) 183{ 184 ucontrol->value.integer.value[0] = rx51_dmic_func; 185 186 return 0; 187} 188 189static int rx51_set_input(struct snd_kcontrol *kcontrol, 190 struct snd_ctl_elem_value *ucontrol) 191{ 192 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); 193 194 if (rx51_dmic_func == ucontrol->value.integer.value[0]) 195 return 0; 196 197 rx51_dmic_func = ucontrol->value.integer.value[0]; 198 rx51_ext_control(&card->dapm); 199 200 return 1; 201} 202 203static int rx51_get_jack(struct snd_kcontrol *kcontrol, 204 struct snd_ctl_elem_value *ucontrol) 205{ 206 ucontrol->value.integer.value[0] = rx51_jack_func; 207 208 return 0; 209} 210 211static int rx51_set_jack(struct snd_kcontrol *kcontrol, 212 struct snd_ctl_elem_value *ucontrol) 213{ 214 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); 215 216 if (rx51_jack_func == ucontrol->value.integer.value[0]) 217 return 0; 218 219 rx51_jack_func = ucontrol->value.integer.value[0]; 220 rx51_ext_control(&card->dapm); 221 222 return 1; 223} 224 225static struct snd_soc_jack rx51_av_jack; 226 227static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = { 228 { 229 .name = "avdet-gpio", 230 .report = SND_JACK_HEADSET, 231 .invert = 1, 232 .debounce_time = 200, 233 }, 234}; 235 236static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = { 237 SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event), 238 SND_SOC_DAPM_MIC("DMic", NULL), 239 SND_SOC_DAPM_HP("Headphone Jack", rx51_hp_event), 240 SND_SOC_DAPM_MIC("HS Mic", NULL), 241 SND_SOC_DAPM_LINE("FM Transmitter", NULL), 242 SND_SOC_DAPM_SPK("Earphone", NULL), 243}; 244 245static const struct snd_soc_dapm_route audio_map[] = { 246 {"Ext Spk", NULL, "HPLOUT"}, 247 {"Ext Spk", NULL, "HPROUT"}, 248 {"Headphone Jack", NULL, "LLOUT"}, 249 {"Headphone Jack", NULL, "RLOUT"}, 250 {"FM Transmitter", NULL, "LLOUT"}, 251 {"FM Transmitter", NULL, "RLOUT"}, 252 253 {"DMic Rate 64", NULL, "DMic"}, 254 {"DMic", NULL, "Mic Bias"}, 255 256 {"b LINE2R", NULL, "MONO_LOUT"}, 257 {"Earphone", NULL, "b HPLOUT"}, 258 259 {"LINE1L", NULL, "HS Mic"}, 260 {"HS Mic", NULL, "b Mic Bias"}, 261}; 262 263static const char * const spk_function[] = {"Off", "On"}; 264static const char * const input_function[] = {"ADC", "Digital Mic"}; 265static const char * const jack_function[] = { 266 "Off", "TV-OUT", "Headphone", "Headset" 267}; 268 269static const struct soc_enum rx51_enum[] = { 270 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function), 271 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function), 272 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function), 273}; 274 275static const struct snd_kcontrol_new aic34_rx51_controls[] = { 276 SOC_ENUM_EXT("Speaker Function", rx51_enum[0], 277 rx51_get_spk, rx51_set_spk), 278 SOC_ENUM_EXT("Input Select", rx51_enum[1], 279 rx51_get_input, rx51_set_input), 280 SOC_ENUM_EXT("Jack Function", rx51_enum[2], 281 rx51_get_jack, rx51_set_jack), 282 SOC_DAPM_PIN_SWITCH("FM Transmitter"), 283 SOC_DAPM_PIN_SWITCH("Earphone"), 284}; 285 286static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd) 287{ 288 struct snd_soc_codec *codec = rtd->codec; 289 struct snd_soc_card *card = rtd->card; 290 struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card); 291 292 struct snd_soc_dapm_context *dapm = &codec->dapm; 293 int err; 294 295 /* Set up NC codec pins */ 296 snd_soc_dapm_nc_pin(dapm, "MIC3L"); 297 snd_soc_dapm_nc_pin(dapm, "MIC3R"); 298 snd_soc_dapm_nc_pin(dapm, "LINE1R"); 299 300 err = tpa6130a2_add_controls(codec); 301 if (err < 0) { 302 dev_err(card->dev, "Failed to add TPA6130A2 controls\n"); 303 return err; 304 } 305 snd_soc_limit_volume(codec, "TPA6130A2 Headphone Playback Volume", 42); 306 307 err = omap_mcbsp_st_add_controls(rtd, 2); 308 if (err < 0) { 309 dev_err(card->dev, "Failed to add MCBSP controls\n"); 310 return err; 311 } 312 313 /* AV jack detection */ 314 err = snd_soc_card_jack_new(rtd->card, "AV Jack", 315 SND_JACK_HEADSET | SND_JACK_VIDEOOUT, 316 &rx51_av_jack, NULL, 0); 317 if (err) { 318 dev_err(card->dev, "Failed to add AV Jack\n"); 319 return err; 320 } 321 322 /* prepare gpio for snd_soc_jack_add_gpios */ 323 rx51_av_jack_gpios[0].gpio = desc_to_gpio(pdata->jack_detection_gpio); 324 devm_gpiod_put(card->dev, pdata->jack_detection_gpio); 325 326 err = snd_soc_jack_add_gpios(&rx51_av_jack, 327 ARRAY_SIZE(rx51_av_jack_gpios), 328 rx51_av_jack_gpios); 329 if (err) { 330 dev_err(card->dev, "Failed to add GPIOs\n"); 331 return err; 332 } 333 334 return err; 335} 336 337static int rx51_card_remove(struct snd_soc_card *card) 338{ 339 snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios), 340 rx51_av_jack_gpios); 341 342 return 0; 343} 344 345/* Digital audio interface glue - connects codec <--> CPU */ 346static struct snd_soc_dai_link rx51_dai[] = { 347 { 348 .name = "TLV320AIC34", 349 .stream_name = "AIC34", 350 .cpu_dai_name = "omap-mcbsp.2", 351 .codec_dai_name = "tlv320aic3x-hifi", 352 .platform_name = "omap-mcbsp.2", 353 .codec_name = "tlv320aic3x-codec.2-0018", 354 .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | 355 SND_SOC_DAIFMT_CBM_CFM, 356 .init = rx51_aic34_init, 357 .ops = &rx51_ops, 358 }, 359}; 360 361static struct snd_soc_aux_dev rx51_aux_dev[] = { 362 { 363 .name = "TLV320AIC34b", 364 .codec_name = "tlv320aic3x-codec.2-0019", 365 }, 366}; 367 368static struct snd_soc_codec_conf rx51_codec_conf[] = { 369 { 370 .dev_name = "tlv320aic3x-codec.2-0019", 371 .name_prefix = "b", 372 }, 373}; 374 375/* Audio card */ 376static struct snd_soc_card rx51_sound_card = { 377 .name = "RX-51", 378 .owner = THIS_MODULE, 379 .remove = rx51_card_remove, 380 .dai_link = rx51_dai, 381 .num_links = ARRAY_SIZE(rx51_dai), 382 .aux_dev = rx51_aux_dev, 383 .num_aux_devs = ARRAY_SIZE(rx51_aux_dev), 384 .codec_conf = rx51_codec_conf, 385 .num_configs = ARRAY_SIZE(rx51_codec_conf), 386 387 .controls = aic34_rx51_controls, 388 .num_controls = ARRAY_SIZE(aic34_rx51_controls), 389 .dapm_widgets = aic34_dapm_widgets, 390 .num_dapm_widgets = ARRAY_SIZE(aic34_dapm_widgets), 391 .dapm_routes = audio_map, 392 .num_dapm_routes = ARRAY_SIZE(audio_map), 393}; 394 395static int rx51_soc_probe(struct platform_device *pdev) 396{ 397 struct rx51_audio_pdata *pdata; 398 struct device_node *np = pdev->dev.of_node; 399 struct snd_soc_card *card = &rx51_sound_card; 400 int err; 401 402 if (!machine_is_nokia_rx51() && !of_machine_is_compatible("nokia,omap3-n900")) 403 return -ENODEV; 404 405 card->dev = &pdev->dev; 406 407 if (np) { 408 struct device_node *dai_node; 409 410 dai_node = of_parse_phandle(np, "nokia,cpu-dai", 0); 411 if (!dai_node) { 412 dev_err(&pdev->dev, "McBSP node is not provided\n"); 413 return -EINVAL; 414 } 415 rx51_dai[0].cpu_dai_name = NULL; 416 rx51_dai[0].platform_name = NULL; 417 rx51_dai[0].cpu_of_node = dai_node; 418 rx51_dai[0].platform_of_node = dai_node; 419 420 dai_node = of_parse_phandle(np, "nokia,audio-codec", 0); 421 if (!dai_node) { 422 dev_err(&pdev->dev, "Codec node is not provided\n"); 423 return -EINVAL; 424 } 425 rx51_dai[0].codec_name = NULL; 426 rx51_dai[0].codec_of_node = dai_node; 427 428 dai_node = of_parse_phandle(np, "nokia,audio-codec", 1); 429 if (!dai_node) { 430 dev_err(&pdev->dev, "Auxiliary Codec node is not provided\n"); 431 return -EINVAL; 432 } 433 rx51_aux_dev[0].codec_name = NULL; 434 rx51_aux_dev[0].codec_of_node = dai_node; 435 rx51_codec_conf[0].dev_name = NULL; 436 rx51_codec_conf[0].of_node = dai_node; 437 438 dai_node = of_parse_phandle(np, "nokia,headphone-amplifier", 0); 439 if (!dai_node) { 440 dev_err(&pdev->dev, "Headphone amplifier node is not provided\n"); 441 return -EINVAL; 442 } 443 444 /* TODO: tpa6130a2a driver supports only a single instance, so 445 * this driver ignores the headphone-amplifier node for now. 446 * It's already mandatory in the DT binding to be future proof. 447 */ 448 } 449 450 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); 451 if (pdata == NULL) { 452 dev_err(card->dev, "failed to create private data\n"); 453 return -ENOMEM; 454 } 455 snd_soc_card_set_drvdata(card, pdata); 456 457 pdata->tvout_selection_gpio = devm_gpiod_get(card->dev, 458 "tvout-selection"); 459 if (IS_ERR(pdata->tvout_selection_gpio)) { 460 dev_err(card->dev, "could not get tvout selection gpio\n"); 461 return PTR_ERR(pdata->tvout_selection_gpio); 462 } 463 464 err = gpiod_direction_output(pdata->tvout_selection_gpio, 0); 465 if (err) { 466 dev_err(card->dev, "could not setup tvout selection gpio\n"); 467 return err; 468 } 469 470 pdata->jack_detection_gpio = devm_gpiod_get(card->dev, 471 "jack-detection"); 472 if (IS_ERR(pdata->jack_detection_gpio)) { 473 dev_err(card->dev, "could not get jack detection gpio\n"); 474 return PTR_ERR(pdata->jack_detection_gpio); 475 } 476 477 pdata->eci_sw_gpio = devm_gpiod_get(card->dev, "eci-switch"); 478 if (IS_ERR(pdata->eci_sw_gpio)) { 479 dev_err(card->dev, "could not get eci switch gpio\n"); 480 return PTR_ERR(pdata->eci_sw_gpio); 481 } 482 483 err = gpiod_direction_output(pdata->eci_sw_gpio, 1); 484 if (err) { 485 dev_err(card->dev, "could not setup eci switch gpio\n"); 486 return err; 487 } 488 489 pdata->speaker_amp_gpio = devm_gpiod_get(card->dev, 490 "speaker-amplifier"); 491 if (IS_ERR(pdata->speaker_amp_gpio)) { 492 dev_err(card->dev, "could not get speaker enable gpio\n"); 493 return PTR_ERR(pdata->speaker_amp_gpio); 494 } 495 496 err = gpiod_direction_output(pdata->speaker_amp_gpio, 0); 497 if (err) { 498 dev_err(card->dev, "could not setup speaker enable gpio\n"); 499 return err; 500 } 501 502 err = devm_snd_soc_register_card(card->dev, card); 503 if (err) { 504 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", err); 505 return err; 506 } 507 508 return 0; 509} 510 511#if defined(CONFIG_OF) 512static const struct of_device_id rx51_audio_of_match[] = { 513 { .compatible = "nokia,n900-audio", }, 514 {}, 515}; 516MODULE_DEVICE_TABLE(of, rx51_audio_of_match); 517#endif 518 519static struct platform_driver rx51_soc_driver = { 520 .driver = { 521 .name = "rx51-audio", 522 .of_match_table = of_match_ptr(rx51_audio_of_match), 523 }, 524 .probe = rx51_soc_probe, 525}; 526 527module_platform_driver(rx51_soc_driver); 528 529MODULE_AUTHOR("Nokia Corporation"); 530MODULE_DESCRIPTION("ALSA SoC Nokia RX-51"); 531MODULE_LICENSE("GPL"); 532MODULE_ALIAS("platform:rx51-audio"); 533