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 = dapm->card; 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_card *card = rtd->card; 93 94 snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2); 95 rx51_ext_control(&card->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); 128 129 if (rx51_spk_func == ucontrol->value.enumerated.item[0]) 130 return 0; 131 132 rx51_spk_func = ucontrol->value.enumerated.item[0]; 133 rx51_ext_control(&card->dapm); 134 135 return 1; 136 } 137 138 static int rx51_spk_event(struct snd_soc_dapm_widget *w, 139 struct snd_kcontrol *k, int event) 140 { 141 struct snd_soc_dapm_context *dapm = w->dapm; 142 struct snd_soc_card *card = dapm->card; 143 struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card); 144 145 gpiod_set_raw_value_cansleep(pdata->speaker_amp_gpio, 146 !!SND_SOC_DAPM_EVENT_ON(event)); 147 148 return 0; 149 } 150 151 static int rx51_get_input(struct snd_kcontrol *kcontrol, 152 struct snd_ctl_elem_value *ucontrol) 153 { 154 ucontrol->value.enumerated.item[0] = rx51_dmic_func; 155 156 return 0; 157 } 158 159 static int rx51_set_input(struct snd_kcontrol *kcontrol, 160 struct snd_ctl_elem_value *ucontrol) 161 { 162 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); 163 164 if (rx51_dmic_func == ucontrol->value.enumerated.item[0]) 165 return 0; 166 167 rx51_dmic_func = ucontrol->value.enumerated.item[0]; 168 rx51_ext_control(&card->dapm); 169 170 return 1; 171 } 172 173 static int rx51_get_jack(struct snd_kcontrol *kcontrol, 174 struct snd_ctl_elem_value *ucontrol) 175 { 176 ucontrol->value.enumerated.item[0] = rx51_jack_func; 177 178 return 0; 179 } 180 181 static int rx51_set_jack(struct snd_kcontrol *kcontrol, 182 struct snd_ctl_elem_value *ucontrol) 183 { 184 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); 185 186 if (rx51_jack_func == ucontrol->value.enumerated.item[0]) 187 return 0; 188 189 rx51_jack_func = ucontrol->value.enumerated.item[0]; 190 rx51_ext_control(&card->dapm); 191 192 return 1; 193 } 194 195 static struct snd_soc_jack rx51_av_jack; 196 197 static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = { 198 { 199 .name = "jack-detection", 200 .report = SND_JACK_HEADSET, 201 .invert = 1, 202 .debounce_time = 200, 203 }, 204 }; 205 206 static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = { 207 SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event), 208 SND_SOC_DAPM_MIC("DMic", NULL), 209 SND_SOC_DAPM_HP("Headphone Jack", NULL), 210 SND_SOC_DAPM_MIC("HS Mic", NULL), 211 SND_SOC_DAPM_LINE("FM Transmitter", NULL), 212 SND_SOC_DAPM_SPK("Earphone", NULL), 213 }; 214 215 static const struct snd_soc_dapm_route audio_map[] = { 216 {"Ext Spk", NULL, "HPLOUT"}, 217 {"Ext Spk", NULL, "HPROUT"}, 218 {"Ext Spk", NULL, "HPLCOM"}, 219 {"Ext Spk", NULL, "HPRCOM"}, 220 {"FM Transmitter", NULL, "LLOUT"}, 221 {"FM Transmitter", NULL, "RLOUT"}, 222 223 {"Headphone Jack", NULL, "TPA6130A2 HPLEFT"}, 224 {"Headphone Jack", NULL, "TPA6130A2 HPRIGHT"}, 225 {"TPA6130A2 LEFTIN", NULL, "LLOUT"}, 226 {"TPA6130A2 RIGHTIN", NULL, "RLOUT"}, 227 228 {"DMic Rate 64", NULL, "DMic"}, 229 {"DMic", NULL, "Mic Bias"}, 230 231 {"b LINE2R", NULL, "MONO_LOUT"}, 232 {"Earphone", NULL, "b HPLOUT"}, 233 234 {"LINE1L", NULL, "HS Mic"}, 235 {"HS Mic", NULL, "b Mic Bias"}, 236 }; 237 238 static const char * const spk_function[] = {"Off", "On"}; 239 static const char * const input_function[] = {"ADC", "Digital Mic"}; 240 static const char * const jack_function[] = { 241 "Off", "TV-OUT", "Headphone", "Headset" 242 }; 243 244 static const struct soc_enum rx51_enum[] = { 245 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function), 246 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function), 247 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function), 248 }; 249 250 static const struct snd_kcontrol_new aic34_rx51_controls[] = { 251 SOC_ENUM_EXT("Speaker Function", rx51_enum[0], 252 rx51_get_spk, rx51_set_spk), 253 SOC_ENUM_EXT("Input Select", rx51_enum[1], 254 rx51_get_input, rx51_set_input), 255 SOC_ENUM_EXT("Jack Function", rx51_enum[2], 256 rx51_get_jack, rx51_set_jack), 257 SOC_DAPM_PIN_SWITCH("FM Transmitter"), 258 SOC_DAPM_PIN_SWITCH("Earphone"), 259 }; 260 261 static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd) 262 { 263 struct snd_soc_card *card = rtd->card; 264 int err; 265 266 snd_soc_limit_volume(card, "TPA6130A2 Headphone Playback Volume", 42); 267 268 err = omap_mcbsp_st_add_controls(rtd, 2); 269 if (err < 0) { 270 dev_err(card->dev, "Failed to add MCBSP controls\n"); 271 return err; 272 } 273 274 /* AV jack detection */ 275 err = snd_soc_card_jack_new(rtd->card, "AV Jack", 276 SND_JACK_HEADSET | SND_JACK_VIDEOOUT, 277 &rx51_av_jack); 278 if (err) { 279 dev_err(card->dev, "Failed to add AV Jack\n"); 280 return err; 281 } 282 283 rx51_av_jack_gpios[0].gpiod_dev = card->dev; 284 /* Name is assigned in the struct */ 285 rx51_av_jack_gpios[0].idx = 0; 286 287 err = snd_soc_jack_add_gpios(&rx51_av_jack, 288 ARRAY_SIZE(rx51_av_jack_gpios), 289 rx51_av_jack_gpios); 290 if (err) { 291 dev_err(card->dev, "Failed to add GPIOs\n"); 292 return err; 293 } 294 295 return err; 296 } 297 298 /* Digital audio interface glue - connects codec <--> CPU */ 299 SND_SOC_DAILINK_DEFS(aic34, 300 DAILINK_COMP_ARRAY(COMP_CPU("omap-mcbsp.2")), 301 DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.2-0018", 302 "tlv320aic3x-hifi")), 303 DAILINK_COMP_ARRAY(COMP_PLATFORM("omap-mcbsp.2"))); 304 305 static struct snd_soc_dai_link rx51_dai[] = { 306 { 307 .name = "TLV320AIC34", 308 .stream_name = "AIC34", 309 .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | 310 SND_SOC_DAIFMT_CBM_CFM, 311 .init = rx51_aic34_init, 312 .ops = &rx51_ops, 313 SND_SOC_DAILINK_REG(aic34), 314 }, 315 }; 316 317 static struct snd_soc_aux_dev rx51_aux_dev[] = { 318 { 319 .dlc = COMP_AUX("tlv320aic3x-codec.2-0019"), 320 }, 321 { 322 .dlc = COMP_AUX("tpa6130a2.2-0060"), 323 }, 324 }; 325 326 static struct snd_soc_codec_conf rx51_codec_conf[] = { 327 { 328 .dlc = COMP_CODEC_CONF("tlv320aic3x-codec.2-0019"), 329 .name_prefix = "b", 330 }, 331 { 332 .dlc = COMP_CODEC_CONF("tpa6130a2.2-0060"), 333 .name_prefix = "TPA6130A2", 334 }, 335 }; 336 337 /* Audio card */ 338 static struct snd_soc_card rx51_sound_card = { 339 .name = "RX-51", 340 .owner = THIS_MODULE, 341 .dai_link = rx51_dai, 342 .num_links = ARRAY_SIZE(rx51_dai), 343 .aux_dev = rx51_aux_dev, 344 .num_aux_devs = ARRAY_SIZE(rx51_aux_dev), 345 .codec_conf = rx51_codec_conf, 346 .num_configs = ARRAY_SIZE(rx51_codec_conf), 347 .fully_routed = true, 348 349 .controls = aic34_rx51_controls, 350 .num_controls = ARRAY_SIZE(aic34_rx51_controls), 351 .dapm_widgets = aic34_dapm_widgets, 352 .num_dapm_widgets = ARRAY_SIZE(aic34_dapm_widgets), 353 .dapm_routes = audio_map, 354 .num_dapm_routes = ARRAY_SIZE(audio_map), 355 }; 356 357 static int rx51_soc_probe(struct platform_device *pdev) 358 { 359 struct rx51_audio_pdata *pdata; 360 struct device_node *np = pdev->dev.of_node; 361 struct snd_soc_card *card = &rx51_sound_card; 362 int err; 363 364 if (!machine_is_nokia_rx51() && !of_machine_is_compatible("nokia,omap3-n900")) 365 return -ENODEV; 366 367 card->dev = &pdev->dev; 368 369 if (np) { 370 struct device_node *dai_node; 371 372 dai_node = of_parse_phandle(np, "nokia,cpu-dai", 0); 373 if (!dai_node) { 374 dev_err(&pdev->dev, "McBSP node is not provided\n"); 375 return -EINVAL; 376 } 377 rx51_dai[0].cpus->dai_name = NULL; 378 rx51_dai[0].platforms->name = NULL; 379 rx51_dai[0].cpus->of_node = dai_node; 380 rx51_dai[0].platforms->of_node = dai_node; 381 382 dai_node = of_parse_phandle(np, "nokia,audio-codec", 0); 383 if (!dai_node) { 384 dev_err(&pdev->dev, "Codec node is not provided\n"); 385 return -EINVAL; 386 } 387 rx51_dai[0].codecs->name = NULL; 388 rx51_dai[0].codecs->of_node = dai_node; 389 390 dai_node = of_parse_phandle(np, "nokia,audio-codec", 1); 391 if (!dai_node) { 392 dev_err(&pdev->dev, "Auxiliary Codec node is not provided\n"); 393 return -EINVAL; 394 } 395 rx51_aux_dev[0].dlc.name = NULL; 396 rx51_aux_dev[0].dlc.of_node = dai_node; 397 rx51_codec_conf[0].dlc.name = NULL; 398 rx51_codec_conf[0].dlc.of_node = dai_node; 399 400 dai_node = of_parse_phandle(np, "nokia,headphone-amplifier", 0); 401 if (!dai_node) { 402 dev_err(&pdev->dev, "Headphone amplifier node is not provided\n"); 403 return -EINVAL; 404 } 405 rx51_aux_dev[1].dlc.name = NULL; 406 rx51_aux_dev[1].dlc.of_node = dai_node; 407 rx51_codec_conf[1].dlc.name = NULL; 408 rx51_codec_conf[1].dlc.of_node = dai_node; 409 } 410 411 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); 412 if (pdata == NULL) 413 return -ENOMEM; 414 415 snd_soc_card_set_drvdata(card, pdata); 416 417 pdata->tvout_selection_gpio = devm_gpiod_get(card->dev, 418 "tvout-selection", 419 GPIOD_OUT_LOW); 420 if (IS_ERR(pdata->tvout_selection_gpio)) { 421 dev_err(card->dev, "could not get tvout selection gpio\n"); 422 return PTR_ERR(pdata->tvout_selection_gpio); 423 } 424 425 pdata->eci_sw_gpio = devm_gpiod_get(card->dev, "eci-switch", 426 GPIOD_OUT_HIGH); 427 if (IS_ERR(pdata->eci_sw_gpio)) { 428 dev_err(card->dev, "could not get eci switch gpio\n"); 429 return PTR_ERR(pdata->eci_sw_gpio); 430 } 431 432 pdata->speaker_amp_gpio = devm_gpiod_get(card->dev, 433 "speaker-amplifier", 434 GPIOD_OUT_LOW); 435 if (IS_ERR(pdata->speaker_amp_gpio)) { 436 dev_err(card->dev, "could not get speaker enable gpio\n"); 437 return PTR_ERR(pdata->speaker_amp_gpio); 438 } 439 440 err = devm_snd_soc_register_card(card->dev, card); 441 if (err) { 442 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", err); 443 return err; 444 } 445 446 return 0; 447 } 448 449 #if defined(CONFIG_OF) 450 static const struct of_device_id rx51_audio_of_match[] = { 451 { .compatible = "nokia,n900-audio", }, 452 {}, 453 }; 454 MODULE_DEVICE_TABLE(of, rx51_audio_of_match); 455 #endif 456 457 static struct platform_driver rx51_soc_driver = { 458 .driver = { 459 .name = "rx51-audio", 460 .of_match_table = of_match_ptr(rx51_audio_of_match), 461 }, 462 .probe = rx51_soc_probe, 463 }; 464 465 module_platform_driver(rx51_soc_driver); 466 467 MODULE_AUTHOR("Nokia Corporation"); 468 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51"); 469 MODULE_LICENSE("GPL"); 470 MODULE_ALIAS("platform:rx51-audio"); 471