1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * rx51.c -- SoC audio for Nokia RX-51 4 * 5 * Copyright (C) 2008 - 2009 Nokia Corporation 6 * 7 * Contact: Peter Ujfalusi <peter.ujfalusi@ti.com> 8 * Eduardo Valentin <eduardo.valentin@nokia.com> 9 * Jarkko Nikula <jarkko.nikula@bitmer.com> 10 */ 11 12 #include <linux/delay.h> 13 #include <linux/gpio.h> 14 #include <linux/platform_device.h> 15 #include <linux/gpio/consumer.h> 16 #include <linux/module.h> 17 #include <sound/core.h> 18 #include <sound/jack.h> 19 #include <sound/pcm.h> 20 #include <sound/soc.h> 21 #include <linux/platform_data/asoc-ti-mcbsp.h> 22 23 #include <asm/mach-types.h> 24 25 #include "omap-mcbsp.h" 26 27 enum { 28 RX51_JACK_DISABLED, 29 RX51_JACK_TVOUT, /* tv-out with stereo output */ 30 RX51_JACK_HP, /* headphone: stereo output, no mic */ 31 RX51_JACK_HS, /* headset: stereo output with mic */ 32 }; 33 34 struct rx51_audio_pdata { 35 struct gpio_desc *tvout_selection_gpio; 36 struct gpio_desc *jack_detection_gpio; 37 struct gpio_desc *eci_sw_gpio; 38 struct gpio_desc *speaker_amp_gpio; 39 }; 40 41 static int rx51_spk_func; 42 static int rx51_dmic_func; 43 static int rx51_jack_func; 44 45 static void rx51_ext_control(struct snd_soc_dapm_context *dapm) 46 { 47 struct snd_soc_card *card = dapm->card; 48 struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card); 49 int hp = 0, hs = 0, tvout = 0; 50 51 switch (rx51_jack_func) { 52 case RX51_JACK_TVOUT: 53 tvout = 1; 54 hp = 1; 55 break; 56 case RX51_JACK_HS: 57 hs = 1; 58 /* fall through */ 59 case RX51_JACK_HP: 60 hp = 1; 61 break; 62 } 63 64 snd_soc_dapm_mutex_lock(dapm); 65 66 if (rx51_spk_func) 67 snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk"); 68 else 69 snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk"); 70 if (rx51_dmic_func) 71 snd_soc_dapm_enable_pin_unlocked(dapm, "DMic"); 72 else 73 snd_soc_dapm_disable_pin_unlocked(dapm, "DMic"); 74 if (hp) 75 snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack"); 76 else 77 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack"); 78 if (hs) 79 snd_soc_dapm_enable_pin_unlocked(dapm, "HS Mic"); 80 else 81 snd_soc_dapm_disable_pin_unlocked(dapm, "HS Mic"); 82 83 gpiod_set_value(pdata->tvout_selection_gpio, tvout); 84 85 snd_soc_dapm_sync_unlocked(dapm); 86 87 snd_soc_dapm_mutex_unlock(dapm); 88 } 89 90 static int rx51_startup(struct snd_pcm_substream *substream) 91 { 92 struct snd_pcm_runtime *runtime = substream->runtime; 93 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 94 struct snd_soc_card *card = rtd->card; 95 96 snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2); 97 rx51_ext_control(&card->dapm); 98 99 return 0; 100 } 101 102 static int rx51_hw_params(struct snd_pcm_substream *substream, 103 struct snd_pcm_hw_params *params) 104 { 105 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 106 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); 107 108 /* Set the codec system clock for DAC and ADC */ 109 return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000, 110 SND_SOC_CLOCK_IN); 111 } 112 113 static const struct snd_soc_ops rx51_ops = { 114 .startup = rx51_startup, 115 .hw_params = rx51_hw_params, 116 }; 117 118 static int rx51_get_spk(struct snd_kcontrol *kcontrol, 119 struct snd_ctl_elem_value *ucontrol) 120 { 121 ucontrol->value.enumerated.item[0] = rx51_spk_func; 122 123 return 0; 124 } 125 126 static int rx51_set_spk(struct snd_kcontrol *kcontrol, 127 struct snd_ctl_elem_value *ucontrol) 128 { 129 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); 130 131 if (rx51_spk_func == ucontrol->value.enumerated.item[0]) 132 return 0; 133 134 rx51_spk_func = ucontrol->value.enumerated.item[0]; 135 rx51_ext_control(&card->dapm); 136 137 return 1; 138 } 139 140 static int rx51_spk_event(struct snd_soc_dapm_widget *w, 141 struct snd_kcontrol *k, int event) 142 { 143 struct snd_soc_dapm_context *dapm = w->dapm; 144 struct snd_soc_card *card = dapm->card; 145 struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card); 146 147 gpiod_set_raw_value_cansleep(pdata->speaker_amp_gpio, 148 !!SND_SOC_DAPM_EVENT_ON(event)); 149 150 return 0; 151 } 152 153 static int rx51_get_input(struct snd_kcontrol *kcontrol, 154 struct snd_ctl_elem_value *ucontrol) 155 { 156 ucontrol->value.enumerated.item[0] = rx51_dmic_func; 157 158 return 0; 159 } 160 161 static int rx51_set_input(struct snd_kcontrol *kcontrol, 162 struct snd_ctl_elem_value *ucontrol) 163 { 164 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); 165 166 if (rx51_dmic_func == ucontrol->value.enumerated.item[0]) 167 return 0; 168 169 rx51_dmic_func = ucontrol->value.enumerated.item[0]; 170 rx51_ext_control(&card->dapm); 171 172 return 1; 173 } 174 175 static int rx51_get_jack(struct snd_kcontrol *kcontrol, 176 struct snd_ctl_elem_value *ucontrol) 177 { 178 ucontrol->value.enumerated.item[0] = rx51_jack_func; 179 180 return 0; 181 } 182 183 static int rx51_set_jack(struct snd_kcontrol *kcontrol, 184 struct snd_ctl_elem_value *ucontrol) 185 { 186 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); 187 188 if (rx51_jack_func == ucontrol->value.enumerated.item[0]) 189 return 0; 190 191 rx51_jack_func = ucontrol->value.enumerated.item[0]; 192 rx51_ext_control(&card->dapm); 193 194 return 1; 195 } 196 197 static struct snd_soc_jack rx51_av_jack; 198 199 static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = { 200 { 201 .name = "avdet-gpio", 202 .report = SND_JACK_HEADSET, 203 .invert = 1, 204 .debounce_time = 200, 205 }, 206 }; 207 208 static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = { 209 SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event), 210 SND_SOC_DAPM_MIC("DMic", NULL), 211 SND_SOC_DAPM_HP("Headphone Jack", NULL), 212 SND_SOC_DAPM_MIC("HS Mic", NULL), 213 SND_SOC_DAPM_LINE("FM Transmitter", NULL), 214 SND_SOC_DAPM_SPK("Earphone", NULL), 215 }; 216 217 static const struct snd_soc_dapm_route audio_map[] = { 218 {"Ext Spk", NULL, "HPLOUT"}, 219 {"Ext Spk", NULL, "HPROUT"}, 220 {"Ext Spk", NULL, "HPLCOM"}, 221 {"Ext Spk", NULL, "HPRCOM"}, 222 {"FM Transmitter", NULL, "LLOUT"}, 223 {"FM Transmitter", NULL, "RLOUT"}, 224 225 {"Headphone Jack", NULL, "TPA6130A2 HPLEFT"}, 226 {"Headphone Jack", NULL, "TPA6130A2 HPRIGHT"}, 227 {"TPA6130A2 LEFTIN", NULL, "LLOUT"}, 228 {"TPA6130A2 RIGHTIN", NULL, "RLOUT"}, 229 230 {"DMic Rate 64", NULL, "DMic"}, 231 {"DMic", NULL, "Mic Bias"}, 232 233 {"b LINE2R", NULL, "MONO_LOUT"}, 234 {"Earphone", NULL, "b HPLOUT"}, 235 236 {"LINE1L", NULL, "HS Mic"}, 237 {"HS Mic", NULL, "b Mic Bias"}, 238 }; 239 240 static const char * const spk_function[] = {"Off", "On"}; 241 static const char * const input_function[] = {"ADC", "Digital Mic"}; 242 static const char * const jack_function[] = { 243 "Off", "TV-OUT", "Headphone", "Headset" 244 }; 245 246 static const struct soc_enum rx51_enum[] = { 247 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function), 248 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function), 249 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function), 250 }; 251 252 static const struct snd_kcontrol_new aic34_rx51_controls[] = { 253 SOC_ENUM_EXT("Speaker Function", rx51_enum[0], 254 rx51_get_spk, rx51_set_spk), 255 SOC_ENUM_EXT("Input Select", rx51_enum[1], 256 rx51_get_input, rx51_set_input), 257 SOC_ENUM_EXT("Jack Function", rx51_enum[2], 258 rx51_get_jack, rx51_set_jack), 259 SOC_DAPM_PIN_SWITCH("FM Transmitter"), 260 SOC_DAPM_PIN_SWITCH("Earphone"), 261 }; 262 263 static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd) 264 { 265 struct snd_soc_card *card = rtd->card; 266 struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card); 267 int err; 268 269 snd_soc_limit_volume(card, "TPA6130A2 Headphone Playback Volume", 42); 270 271 err = omap_mcbsp_st_add_controls(rtd, 2); 272 if (err < 0) { 273 dev_err(card->dev, "Failed to add MCBSP controls\n"); 274 return err; 275 } 276 277 /* AV jack detection */ 278 err = snd_soc_card_jack_new(rtd->card, "AV Jack", 279 SND_JACK_HEADSET | SND_JACK_VIDEOOUT, 280 &rx51_av_jack, NULL, 0); 281 if (err) { 282 dev_err(card->dev, "Failed to add AV Jack\n"); 283 return err; 284 } 285 286 /* prepare gpio for snd_soc_jack_add_gpios */ 287 rx51_av_jack_gpios[0].gpio = desc_to_gpio(pdata->jack_detection_gpio); 288 devm_gpiod_put(card->dev, pdata->jack_detection_gpio); 289 290 err = snd_soc_jack_add_gpios(&rx51_av_jack, 291 ARRAY_SIZE(rx51_av_jack_gpios), 292 rx51_av_jack_gpios); 293 if (err) { 294 dev_err(card->dev, "Failed to add GPIOs\n"); 295 return err; 296 } 297 298 return err; 299 } 300 301 /* Digital audio interface glue - connects codec <--> CPU */ 302 SND_SOC_DAILINK_DEFS(aic34, 303 DAILINK_COMP_ARRAY(COMP_CPU("omap-mcbsp.2")), 304 DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.2-0018", 305 "tlv320aic3x-hifi")), 306 DAILINK_COMP_ARRAY(COMP_PLATFORM("omap-mcbsp.2"))); 307 308 static struct snd_soc_dai_link rx51_dai[] = { 309 { 310 .name = "TLV320AIC34", 311 .stream_name = "AIC34", 312 .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | 313 SND_SOC_DAIFMT_CBM_CFM, 314 .init = rx51_aic34_init, 315 .ops = &rx51_ops, 316 SND_SOC_DAILINK_REG(aic34), 317 }, 318 }; 319 320 static struct snd_soc_aux_dev rx51_aux_dev[] = { 321 { 322 .dlc = COMP_AUX("tlv320aic3x-codec.2-0019"), 323 }, 324 { 325 .dlc = COMP_AUX("tpa6130a2.2-0060"), 326 }, 327 }; 328 329 static struct snd_soc_codec_conf rx51_codec_conf[] = { 330 { 331 .dlc = COMP_CODEC_CONF("tlv320aic3x-codec.2-0019"), 332 .name_prefix = "b", 333 }, 334 { 335 .dlc = COMP_CODEC_CONF("tpa6130a2.2-0060"), 336 .name_prefix = "TPA6130A2", 337 }, 338 }; 339 340 /* Audio card */ 341 static struct snd_soc_card rx51_sound_card = { 342 .name = "RX-51", 343 .owner = THIS_MODULE, 344 .dai_link = rx51_dai, 345 .num_links = ARRAY_SIZE(rx51_dai), 346 .aux_dev = rx51_aux_dev, 347 .num_aux_devs = ARRAY_SIZE(rx51_aux_dev), 348 .codec_conf = rx51_codec_conf, 349 .num_configs = ARRAY_SIZE(rx51_codec_conf), 350 .fully_routed = true, 351 352 .controls = aic34_rx51_controls, 353 .num_controls = ARRAY_SIZE(aic34_rx51_controls), 354 .dapm_widgets = aic34_dapm_widgets, 355 .num_dapm_widgets = ARRAY_SIZE(aic34_dapm_widgets), 356 .dapm_routes = audio_map, 357 .num_dapm_routes = ARRAY_SIZE(audio_map), 358 }; 359 360 static int rx51_soc_probe(struct platform_device *pdev) 361 { 362 struct rx51_audio_pdata *pdata; 363 struct device_node *np = pdev->dev.of_node; 364 struct snd_soc_card *card = &rx51_sound_card; 365 int err; 366 367 if (!machine_is_nokia_rx51() && !of_machine_is_compatible("nokia,omap3-n900")) 368 return -ENODEV; 369 370 card->dev = &pdev->dev; 371 372 if (np) { 373 struct device_node *dai_node; 374 375 dai_node = of_parse_phandle(np, "nokia,cpu-dai", 0); 376 if (!dai_node) { 377 dev_err(&pdev->dev, "McBSP node is not provided\n"); 378 return -EINVAL; 379 } 380 rx51_dai[0].cpus->dai_name = NULL; 381 rx51_dai[0].platforms->name = NULL; 382 rx51_dai[0].cpus->of_node = dai_node; 383 rx51_dai[0].platforms->of_node = dai_node; 384 385 dai_node = of_parse_phandle(np, "nokia,audio-codec", 0); 386 if (!dai_node) { 387 dev_err(&pdev->dev, "Codec node is not provided\n"); 388 return -EINVAL; 389 } 390 rx51_dai[0].codecs->name = NULL; 391 rx51_dai[0].codecs->of_node = dai_node; 392 393 dai_node = of_parse_phandle(np, "nokia,audio-codec", 1); 394 if (!dai_node) { 395 dev_err(&pdev->dev, "Auxiliary Codec node is not provided\n"); 396 return -EINVAL; 397 } 398 rx51_aux_dev[0].dlc.name = NULL; 399 rx51_aux_dev[0].dlc.of_node = dai_node; 400 rx51_codec_conf[0].dlc.name = NULL; 401 rx51_codec_conf[0].dlc.of_node = dai_node; 402 403 dai_node = of_parse_phandle(np, "nokia,headphone-amplifier", 0); 404 if (!dai_node) { 405 dev_err(&pdev->dev, "Headphone amplifier node is not provided\n"); 406 return -EINVAL; 407 } 408 rx51_aux_dev[1].dlc.name = NULL; 409 rx51_aux_dev[1].dlc.of_node = dai_node; 410 rx51_codec_conf[1].dlc.name = NULL; 411 rx51_codec_conf[1].dlc.of_node = dai_node; 412 } 413 414 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); 415 if (pdata == NULL) 416 return -ENOMEM; 417 418 snd_soc_card_set_drvdata(card, pdata); 419 420 pdata->tvout_selection_gpio = devm_gpiod_get(card->dev, 421 "tvout-selection", 422 GPIOD_OUT_LOW); 423 if (IS_ERR(pdata->tvout_selection_gpio)) { 424 dev_err(card->dev, "could not get tvout selection gpio\n"); 425 return PTR_ERR(pdata->tvout_selection_gpio); 426 } 427 428 pdata->jack_detection_gpio = devm_gpiod_get(card->dev, 429 "jack-detection", 430 GPIOD_ASIS); 431 if (IS_ERR(pdata->jack_detection_gpio)) { 432 dev_err(card->dev, "could not get jack detection gpio\n"); 433 return PTR_ERR(pdata->jack_detection_gpio); 434 } 435 436 pdata->eci_sw_gpio = devm_gpiod_get(card->dev, "eci-switch", 437 GPIOD_OUT_HIGH); 438 if (IS_ERR(pdata->eci_sw_gpio)) { 439 dev_err(card->dev, "could not get eci switch gpio\n"); 440 return PTR_ERR(pdata->eci_sw_gpio); 441 } 442 443 pdata->speaker_amp_gpio = devm_gpiod_get(card->dev, 444 "speaker-amplifier", 445 GPIOD_OUT_LOW); 446 if (IS_ERR(pdata->speaker_amp_gpio)) { 447 dev_err(card->dev, "could not get speaker enable gpio\n"); 448 return PTR_ERR(pdata->speaker_amp_gpio); 449 } 450 451 err = devm_snd_soc_register_card(card->dev, card); 452 if (err) { 453 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", err); 454 return err; 455 } 456 457 return 0; 458 } 459 460 #if defined(CONFIG_OF) 461 static const struct of_device_id rx51_audio_of_match[] = { 462 { .compatible = "nokia,n900-audio", }, 463 {}, 464 }; 465 MODULE_DEVICE_TABLE(of, rx51_audio_of_match); 466 #endif 467 468 static struct platform_driver rx51_soc_driver = { 469 .driver = { 470 .name = "rx51-audio", 471 .of_match_table = of_match_ptr(rx51_audio_of_match), 472 }, 473 .probe = rx51_soc_probe, 474 }; 475 476 module_platform_driver(rx51_soc_driver); 477 478 MODULE_AUTHOR("Nokia Corporation"); 479 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51"); 480 MODULE_LICENSE("GPL"); 481 MODULE_ALIAS("platform:rx51-audio"); 482