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/platform_device.h> 14 #include <linux/gpio/consumer.h> 15 #include <linux/module.h> 16 #include <sound/core.h> 17 #include <sound/jack.h> 18 #include <sound/pcm.h> 19 #include <sound/soc.h> 20 #include <linux/platform_data/asoc-ti-mcbsp.h> 21 22 #include <asm/mach-types.h> 23 24 #include "omap-mcbsp.h" 25 26 enum { 27 RX51_JACK_DISABLED, 28 RX51_JACK_TVOUT, /* tv-out with stereo output */ 29 RX51_JACK_HP, /* headphone: stereo output, no mic */ 30 RX51_JACK_HS, /* headset: stereo output with mic */ 31 }; 32 33 struct rx51_audio_pdata { 34 struct gpio_desc *tvout_selection_gpio; 35 struct gpio_desc *eci_sw_gpio; 36 struct gpio_desc *speaker_amp_gpio; 37 }; 38 39 static int rx51_spk_func; 40 static int rx51_dmic_func; 41 static int rx51_jack_func; 42 43 static void rx51_ext_control(struct snd_soc_dapm_context *dapm) 44 { 45 struct snd_soc_card *card = snd_soc_dapm_to_card(dapm); 46 struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card); 47 int hp = 0, hs = 0, tvout = 0; 48 49 switch (rx51_jack_func) { 50 case RX51_JACK_TVOUT: 51 tvout = 1; 52 hp = 1; 53 break; 54 case RX51_JACK_HS: 55 hs = 1; 56 fallthrough; 57 case RX51_JACK_HP: 58 hp = 1; 59 break; 60 } 61 62 snd_soc_dapm_mutex_lock(dapm); 63 64 if (rx51_spk_func) 65 snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk"); 66 else 67 snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk"); 68 if (rx51_dmic_func) 69 snd_soc_dapm_enable_pin_unlocked(dapm, "DMic"); 70 else 71 snd_soc_dapm_disable_pin_unlocked(dapm, "DMic"); 72 if (hp) 73 snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack"); 74 else 75 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack"); 76 if (hs) 77 snd_soc_dapm_enable_pin_unlocked(dapm, "HS Mic"); 78 else 79 snd_soc_dapm_disable_pin_unlocked(dapm, "HS Mic"); 80 81 gpiod_set_value(pdata->tvout_selection_gpio, tvout); 82 83 snd_soc_dapm_sync_unlocked(dapm); 84 85 snd_soc_dapm_mutex_unlock(dapm); 86 } 87 88 static int rx51_startup(struct snd_pcm_substream *substream) 89 { 90 struct snd_pcm_runtime *runtime = substream->runtime; 91 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 92 struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(rtd->card); 93 94 snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2); 95 rx51_ext_control(dapm); 96 97 return 0; 98 } 99 100 static int rx51_hw_params(struct snd_pcm_substream *substream, 101 struct snd_pcm_hw_params *params) 102 { 103 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 104 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); 105 106 /* Set the codec system clock for DAC and ADC */ 107 return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000, 108 SND_SOC_CLOCK_IN); 109 } 110 111 static const struct snd_soc_ops rx51_ops = { 112 .startup = rx51_startup, 113 .hw_params = rx51_hw_params, 114 }; 115 116 static int rx51_get_spk(struct snd_kcontrol *kcontrol, 117 struct snd_ctl_elem_value *ucontrol) 118 { 119 ucontrol->value.enumerated.item[0] = rx51_spk_func; 120 121 return 0; 122 } 123 124 static int rx51_set_spk(struct snd_kcontrol *kcontrol, 125 struct snd_ctl_elem_value *ucontrol) 126 { 127 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); 128 struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(card); 129 130 if (rx51_spk_func == ucontrol->value.enumerated.item[0]) 131 return 0; 132 133 rx51_spk_func = ucontrol->value.enumerated.item[0]; 134 rx51_ext_control(dapm); 135 136 return 1; 137 } 138 139 static int rx51_spk_event(struct snd_soc_dapm_widget *w, 140 struct snd_kcontrol *k, int event) 141 { 142 struct snd_soc_dapm_context *dapm = w->dapm; 143 struct snd_soc_card *card = snd_soc_dapm_to_card(dapm); 144 struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card); 145 146 gpiod_set_raw_value_cansleep(pdata->speaker_amp_gpio, 147 !!SND_SOC_DAPM_EVENT_ON(event)); 148 149 return 0; 150 } 151 152 static int rx51_get_input(struct snd_kcontrol *kcontrol, 153 struct snd_ctl_elem_value *ucontrol) 154 { 155 ucontrol->value.enumerated.item[0] = rx51_dmic_func; 156 157 return 0; 158 } 159 160 static int rx51_set_input(struct snd_kcontrol *kcontrol, 161 struct snd_ctl_elem_value *ucontrol) 162 { 163 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); 164 struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(card); 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(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 struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(card); 188 189 if (rx51_jack_func == ucontrol->value.enumerated.item[0]) 190 return 0; 191 192 rx51_jack_func = ucontrol->value.enumerated.item[0]; 193 rx51_ext_control(dapm); 194 195 return 1; 196 } 197 198 static struct snd_soc_jack rx51_av_jack; 199 200 static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = { 201 { 202 .name = "jack-detection", 203 .report = SND_JACK_HEADSET, 204 .invert = 1, 205 .debounce_time = 200, 206 }, 207 }; 208 209 static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = { 210 SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event), 211 SND_SOC_DAPM_MIC("DMic", NULL), 212 SND_SOC_DAPM_HP("Headphone Jack", NULL), 213 SND_SOC_DAPM_MIC("HS Mic", NULL), 214 SND_SOC_DAPM_LINE("FM Transmitter", NULL), 215 SND_SOC_DAPM_SPK("Earphone", NULL), 216 }; 217 218 static const struct snd_soc_dapm_route audio_map[] = { 219 {"Ext Spk", NULL, "HPLOUT"}, 220 {"Ext Spk", NULL, "HPROUT"}, 221 {"Ext Spk", NULL, "HPLCOM"}, 222 {"Ext Spk", NULL, "HPRCOM"}, 223 {"FM Transmitter", NULL, "LLOUT"}, 224 {"FM Transmitter", NULL, "RLOUT"}, 225 226 {"Headphone Jack", NULL, "TPA6130A2 HPLEFT"}, 227 {"Headphone Jack", NULL, "TPA6130A2 HPRIGHT"}, 228 {"TPA6130A2 LEFTIN", NULL, "LLOUT"}, 229 {"TPA6130A2 RIGHTIN", NULL, "RLOUT"}, 230 231 {"DMic Rate 64", NULL, "DMic"}, 232 {"DMic", NULL, "Mic Bias"}, 233 234 {"b LINE2R", NULL, "MONO_LOUT"}, 235 {"Earphone", NULL, "b HPLOUT"}, 236 237 {"LINE1L", NULL, "HS Mic"}, 238 {"HS Mic", NULL, "b Mic Bias"}, 239 }; 240 241 static const char * const spk_function[] = {"Off", "On"}; 242 static const char * const input_function[] = {"ADC", "Digital Mic"}; 243 static const char * const jack_function[] = { 244 "Off", "TV-OUT", "Headphone", "Headset" 245 }; 246 247 static const struct soc_enum rx51_enum[] = { 248 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function), 249 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function), 250 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function), 251 }; 252 253 static const struct snd_kcontrol_new aic34_rx51_controls[] = { 254 SOC_ENUM_EXT("Speaker Function", rx51_enum[0], 255 rx51_get_spk, rx51_set_spk), 256 SOC_ENUM_EXT("Input Select", rx51_enum[1], 257 rx51_get_input, rx51_set_input), 258 SOC_ENUM_EXT("Jack Function", rx51_enum[2], 259 rx51_get_jack, rx51_set_jack), 260 SOC_DAPM_PIN_SWITCH("FM Transmitter"), 261 SOC_DAPM_PIN_SWITCH("Earphone"), 262 }; 263 264 static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd) 265 { 266 struct snd_soc_card *card = rtd->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); 281 if (err) { 282 dev_err(card->dev, "Failed to add AV Jack\n"); 283 return err; 284 } 285 286 rx51_av_jack_gpios[0].gpiod_dev = card->dev; 287 /* Name is assigned in the struct */ 288 rx51_av_jack_gpios[0].idx = 0; 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_CBP_CFP, 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(card->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(card->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(card->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(card->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(card->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->eci_sw_gpio = devm_gpiod_get(card->dev, "eci-switch", 429 GPIOD_OUT_HIGH); 430 if (IS_ERR(pdata->eci_sw_gpio)) { 431 dev_err(card->dev, "could not get eci switch gpio\n"); 432 return PTR_ERR(pdata->eci_sw_gpio); 433 } 434 435 pdata->speaker_amp_gpio = devm_gpiod_get(card->dev, 436 "speaker-amplifier", 437 GPIOD_OUT_LOW); 438 if (IS_ERR(pdata->speaker_amp_gpio)) { 439 dev_err(card->dev, "could not get speaker enable gpio\n"); 440 return PTR_ERR(pdata->speaker_amp_gpio); 441 } 442 443 err = devm_snd_soc_register_card(card->dev, card); 444 if (err) { 445 dev_err(card->dev, "snd_soc_register_card failed (%d)\n", err); 446 return err; 447 } 448 449 return 0; 450 } 451 452 #if defined(CONFIG_OF) 453 static const struct of_device_id rx51_audio_of_match[] = { 454 { .compatible = "nokia,n900-audio", }, 455 {}, 456 }; 457 MODULE_DEVICE_TABLE(of, rx51_audio_of_match); 458 #endif 459 460 static struct platform_driver rx51_soc_driver = { 461 .driver = { 462 .name = "rx51-audio", 463 .of_match_table = of_match_ptr(rx51_audio_of_match), 464 }, 465 .probe = rx51_soc_probe, 466 }; 467 468 module_platform_driver(rx51_soc_driver); 469 470 MODULE_AUTHOR("Nokia Corporation"); 471 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51"); 472 MODULE_LICENSE("GPL"); 473 MODULE_ALIAS("platform:rx51-audio"); 474