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 37 #include <asm/mach-types.h> 38 39 #include "omap-mcbsp.h" 40 41 enum { 42 RX51_JACK_DISABLED, 43 RX51_JACK_TVOUT, /* tv-out with stereo output */ 44 RX51_JACK_HP, /* headphone: stereo output, no mic */ 45 RX51_JACK_HS, /* headset: stereo output with mic */ 46 }; 47 48 struct rx51_audio_pdata { 49 struct gpio_desc *tvout_selection_gpio; 50 struct gpio_desc *jack_detection_gpio; 51 struct gpio_desc *eci_sw_gpio; 52 struct gpio_desc *speaker_amp_gpio; 53 }; 54 55 static int rx51_spk_func; 56 static int rx51_dmic_func; 57 static int rx51_jack_func; 58 59 static void rx51_ext_control(struct snd_soc_dapm_context *dapm) 60 { 61 struct snd_soc_card *card = dapm->card; 62 struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card); 63 int hp = 0, hs = 0, tvout = 0; 64 65 switch (rx51_jack_func) { 66 case RX51_JACK_TVOUT: 67 tvout = 1; 68 hp = 1; 69 break; 70 case RX51_JACK_HS: 71 hs = 1; 72 case RX51_JACK_HP: 73 hp = 1; 74 break; 75 } 76 77 snd_soc_dapm_mutex_lock(dapm); 78 79 if (rx51_spk_func) 80 snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk"); 81 else 82 snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk"); 83 if (rx51_dmic_func) 84 snd_soc_dapm_enable_pin_unlocked(dapm, "DMic"); 85 else 86 snd_soc_dapm_disable_pin_unlocked(dapm, "DMic"); 87 if (hp) 88 snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack"); 89 else 90 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack"); 91 if (hs) 92 snd_soc_dapm_enable_pin_unlocked(dapm, "HS Mic"); 93 else 94 snd_soc_dapm_disable_pin_unlocked(dapm, "HS Mic"); 95 96 gpiod_set_value(pdata->tvout_selection_gpio, tvout); 97 98 snd_soc_dapm_sync_unlocked(dapm); 99 100 snd_soc_dapm_mutex_unlock(dapm); 101 } 102 103 static int rx51_startup(struct snd_pcm_substream *substream) 104 { 105 struct snd_pcm_runtime *runtime = substream->runtime; 106 struct snd_soc_pcm_runtime *rtd = substream->private_data; 107 struct snd_soc_card *card = rtd->card; 108 109 snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2); 110 rx51_ext_control(&card->dapm); 111 112 return 0; 113 } 114 115 static int rx51_hw_params(struct snd_pcm_substream *substream, 116 struct snd_pcm_hw_params *params) 117 { 118 struct snd_soc_pcm_runtime *rtd = substream->private_data; 119 struct snd_soc_dai *codec_dai = rtd->codec_dai; 120 121 /* Set the codec system clock for DAC and ADC */ 122 return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000, 123 SND_SOC_CLOCK_IN); 124 } 125 126 static const struct snd_soc_ops rx51_ops = { 127 .startup = rx51_startup, 128 .hw_params = rx51_hw_params, 129 }; 130 131 static int rx51_get_spk(struct snd_kcontrol *kcontrol, 132 struct snd_ctl_elem_value *ucontrol) 133 { 134 ucontrol->value.enumerated.item[0] = rx51_spk_func; 135 136 return 0; 137 } 138 139 static int rx51_set_spk(struct snd_kcontrol *kcontrol, 140 struct snd_ctl_elem_value *ucontrol) 141 { 142 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); 143 144 if (rx51_spk_func == ucontrol->value.enumerated.item[0]) 145 return 0; 146 147 rx51_spk_func = ucontrol->value.enumerated.item[0]; 148 rx51_ext_control(&card->dapm); 149 150 return 1; 151 } 152 153 static int rx51_spk_event(struct snd_soc_dapm_widget *w, 154 struct snd_kcontrol *k, int event) 155 { 156 struct snd_soc_dapm_context *dapm = w->dapm; 157 struct snd_soc_card *card = dapm->card; 158 struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card); 159 160 gpiod_set_raw_value_cansleep(pdata->speaker_amp_gpio, 161 !!SND_SOC_DAPM_EVENT_ON(event)); 162 163 return 0; 164 } 165 166 static int rx51_get_input(struct snd_kcontrol *kcontrol, 167 struct snd_ctl_elem_value *ucontrol) 168 { 169 ucontrol->value.enumerated.item[0] = rx51_dmic_func; 170 171 return 0; 172 } 173 174 static int rx51_set_input(struct snd_kcontrol *kcontrol, 175 struct snd_ctl_elem_value *ucontrol) 176 { 177 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); 178 179 if (rx51_dmic_func == ucontrol->value.enumerated.item[0]) 180 return 0; 181 182 rx51_dmic_func = ucontrol->value.enumerated.item[0]; 183 rx51_ext_control(&card->dapm); 184 185 return 1; 186 } 187 188 static int rx51_get_jack(struct snd_kcontrol *kcontrol, 189 struct snd_ctl_elem_value *ucontrol) 190 { 191 ucontrol->value.enumerated.item[0] = rx51_jack_func; 192 193 return 0; 194 } 195 196 static int rx51_set_jack(struct snd_kcontrol *kcontrol, 197 struct snd_ctl_elem_value *ucontrol) 198 { 199 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); 200 201 if (rx51_jack_func == ucontrol->value.enumerated.item[0]) 202 return 0; 203 204 rx51_jack_func = ucontrol->value.enumerated.item[0]; 205 rx51_ext_control(&card->dapm); 206 207 return 1; 208 } 209 210 static struct snd_soc_jack rx51_av_jack; 211 212 static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = { 213 { 214 .name = "avdet-gpio", 215 .report = SND_JACK_HEADSET, 216 .invert = 1, 217 .debounce_time = 200, 218 }, 219 }; 220 221 static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = { 222 SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event), 223 SND_SOC_DAPM_MIC("DMic", NULL), 224 SND_SOC_DAPM_HP("Headphone Jack", NULL), 225 SND_SOC_DAPM_MIC("HS Mic", NULL), 226 SND_SOC_DAPM_LINE("FM Transmitter", NULL), 227 SND_SOC_DAPM_SPK("Earphone", NULL), 228 }; 229 230 static const struct snd_soc_dapm_route audio_map[] = { 231 {"Ext Spk", NULL, "HPLOUT"}, 232 {"Ext Spk", NULL, "HPROUT"}, 233 {"Ext Spk", NULL, "HPLCOM"}, 234 {"Ext Spk", NULL, "HPRCOM"}, 235 {"FM Transmitter", NULL, "LLOUT"}, 236 {"FM Transmitter", NULL, "RLOUT"}, 237 238 {"Headphone Jack", NULL, "TPA6130A2 HPLEFT"}, 239 {"Headphone Jack", NULL, "TPA6130A2 HPRIGHT"}, 240 {"TPA6130A2 LEFTIN", NULL, "LLOUT"}, 241 {"TPA6130A2 RIGHTIN", NULL, "RLOUT"}, 242 243 {"DMic Rate 64", NULL, "DMic"}, 244 {"DMic", NULL, "Mic Bias"}, 245 246 {"b LINE2R", NULL, "MONO_LOUT"}, 247 {"Earphone", NULL, "b HPLOUT"}, 248 249 {"LINE1L", NULL, "HS Mic"}, 250 {"HS Mic", NULL, "b Mic Bias"}, 251 }; 252 253 static const char * const spk_function[] = {"Off", "On"}; 254 static const char * const input_function[] = {"ADC", "Digital Mic"}; 255 static const char * const jack_function[] = { 256 "Off", "TV-OUT", "Headphone", "Headset" 257 }; 258 259 static const struct soc_enum rx51_enum[] = { 260 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function), 261 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function), 262 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function), 263 }; 264 265 static const struct snd_kcontrol_new aic34_rx51_controls[] = { 266 SOC_ENUM_EXT("Speaker Function", rx51_enum[0], 267 rx51_get_spk, rx51_set_spk), 268 SOC_ENUM_EXT("Input Select", rx51_enum[1], 269 rx51_get_input, rx51_set_input), 270 SOC_ENUM_EXT("Jack Function", rx51_enum[2], 271 rx51_get_jack, rx51_set_jack), 272 SOC_DAPM_PIN_SWITCH("FM Transmitter"), 273 SOC_DAPM_PIN_SWITCH("Earphone"), 274 }; 275 276 static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd) 277 { 278 struct snd_soc_card *card = rtd->card; 279 struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card); 280 int err; 281 282 snd_soc_limit_volume(card, "TPA6130A2 Headphone Playback Volume", 42); 283 284 err = omap_mcbsp_st_add_controls(rtd, 2); 285 if (err < 0) { 286 dev_err(card->dev, "Failed to add MCBSP controls\n"); 287 return err; 288 } 289 290 /* AV jack detection */ 291 err = snd_soc_card_jack_new(rtd->card, "AV Jack", 292 SND_JACK_HEADSET | SND_JACK_VIDEOOUT, 293 &rx51_av_jack, NULL, 0); 294 if (err) { 295 dev_err(card->dev, "Failed to add AV Jack\n"); 296 return err; 297 } 298 299 /* prepare gpio for snd_soc_jack_add_gpios */ 300 rx51_av_jack_gpios[0].gpio = desc_to_gpio(pdata->jack_detection_gpio); 301 devm_gpiod_put(card->dev, pdata->jack_detection_gpio); 302 303 err = snd_soc_jack_add_gpios(&rx51_av_jack, 304 ARRAY_SIZE(rx51_av_jack_gpios), 305 rx51_av_jack_gpios); 306 if (err) { 307 dev_err(card->dev, "Failed to add GPIOs\n"); 308 return err; 309 } 310 311 return err; 312 } 313 314 /* Digital audio interface glue - connects codec <--> CPU */ 315 static struct snd_soc_dai_link rx51_dai[] = { 316 { 317 .name = "TLV320AIC34", 318 .stream_name = "AIC34", 319 .cpu_dai_name = "omap-mcbsp.2", 320 .codec_dai_name = "tlv320aic3x-hifi", 321 .platform_name = "omap-mcbsp.2", 322 .codec_name = "tlv320aic3x-codec.2-0018", 323 .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | 324 SND_SOC_DAIFMT_CBM_CFM, 325 .init = rx51_aic34_init, 326 .ops = &rx51_ops, 327 }, 328 }; 329 330 static struct snd_soc_aux_dev rx51_aux_dev[] = { 331 { 332 .name = "TLV320AIC34b", 333 .codec_name = "tlv320aic3x-codec.2-0019", 334 }, 335 { 336 .name = "TPA61320A2", 337 .codec_name = "tpa6130a2.2-0060", 338 }, 339 }; 340 341 static struct snd_soc_codec_conf rx51_codec_conf[] = { 342 { 343 .dev_name = "tlv320aic3x-codec.2-0019", 344 .name_prefix = "b", 345 }, 346 { 347 .dev_name = "tpa6130a2.2-0060", 348 .name_prefix = "TPA6130A2", 349 }, 350 }; 351 352 /* Audio card */ 353 static struct snd_soc_card rx51_sound_card = { 354 .name = "RX-51", 355 .owner = THIS_MODULE, 356 .dai_link = rx51_dai, 357 .num_links = ARRAY_SIZE(rx51_dai), 358 .aux_dev = rx51_aux_dev, 359 .num_aux_devs = ARRAY_SIZE(rx51_aux_dev), 360 .codec_conf = rx51_codec_conf, 361 .num_configs = ARRAY_SIZE(rx51_codec_conf), 362 .fully_routed = true, 363 364 .controls = aic34_rx51_controls, 365 .num_controls = ARRAY_SIZE(aic34_rx51_controls), 366 .dapm_widgets = aic34_dapm_widgets, 367 .num_dapm_widgets = ARRAY_SIZE(aic34_dapm_widgets), 368 .dapm_routes = audio_map, 369 .num_dapm_routes = ARRAY_SIZE(audio_map), 370 }; 371 372 static int rx51_soc_probe(struct platform_device *pdev) 373 { 374 struct rx51_audio_pdata *pdata; 375 struct device_node *np = pdev->dev.of_node; 376 struct snd_soc_card *card = &rx51_sound_card; 377 int err; 378 379 if (!machine_is_nokia_rx51() && !of_machine_is_compatible("nokia,omap3-n900")) 380 return -ENODEV; 381 382 card->dev = &pdev->dev; 383 384 if (np) { 385 struct device_node *dai_node; 386 387 dai_node = of_parse_phandle(np, "nokia,cpu-dai", 0); 388 if (!dai_node) { 389 dev_err(&pdev->dev, "McBSP node is not provided\n"); 390 return -EINVAL; 391 } 392 rx51_dai[0].cpu_dai_name = NULL; 393 rx51_dai[0].platform_name = NULL; 394 rx51_dai[0].cpu_of_node = dai_node; 395 rx51_dai[0].platform_of_node = dai_node; 396 397 dai_node = of_parse_phandle(np, "nokia,audio-codec", 0); 398 if (!dai_node) { 399 dev_err(&pdev->dev, "Codec node is not provided\n"); 400 return -EINVAL; 401 } 402 rx51_dai[0].codec_name = NULL; 403 rx51_dai[0].codec_of_node = dai_node; 404 405 dai_node = of_parse_phandle(np, "nokia,audio-codec", 1); 406 if (!dai_node) { 407 dev_err(&pdev->dev, "Auxiliary Codec node is not provided\n"); 408 return -EINVAL; 409 } 410 rx51_aux_dev[0].codec_name = NULL; 411 rx51_aux_dev[0].codec_of_node = dai_node; 412 rx51_codec_conf[0].dev_name = NULL; 413 rx51_codec_conf[0].of_node = dai_node; 414 415 dai_node = of_parse_phandle(np, "nokia,headphone-amplifier", 0); 416 if (!dai_node) { 417 dev_err(&pdev->dev, "Headphone amplifier node is not provided\n"); 418 return -EINVAL; 419 } 420 rx51_aux_dev[1].codec_name = NULL; 421 rx51_aux_dev[1].codec_of_node = dai_node; 422 rx51_codec_conf[1].dev_name = NULL; 423 rx51_codec_conf[1].of_node = dai_node; 424 } 425 426 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); 427 if (pdata == NULL) 428 return -ENOMEM; 429 430 snd_soc_card_set_drvdata(card, pdata); 431 432 pdata->tvout_selection_gpio = devm_gpiod_get(card->dev, 433 "tvout-selection", 434 GPIOD_OUT_LOW); 435 if (IS_ERR(pdata->tvout_selection_gpio)) { 436 dev_err(card->dev, "could not get tvout selection gpio\n"); 437 return PTR_ERR(pdata->tvout_selection_gpio); 438 } 439 440 pdata->jack_detection_gpio = devm_gpiod_get(card->dev, 441 "jack-detection", 442 GPIOD_ASIS); 443 if (IS_ERR(pdata->jack_detection_gpio)) { 444 dev_err(card->dev, "could not get jack detection gpio\n"); 445 return PTR_ERR(pdata->jack_detection_gpio); 446 } 447 448 pdata->eci_sw_gpio = devm_gpiod_get(card->dev, "eci-switch", 449 GPIOD_OUT_HIGH); 450 if (IS_ERR(pdata->eci_sw_gpio)) { 451 dev_err(card->dev, "could not get eci switch gpio\n"); 452 return PTR_ERR(pdata->eci_sw_gpio); 453 } 454 455 pdata->speaker_amp_gpio = devm_gpiod_get(card->dev, 456 "speaker-amplifier", 457 GPIOD_OUT_LOW); 458 if (IS_ERR(pdata->speaker_amp_gpio)) { 459 dev_err(card->dev, "could not get speaker enable gpio\n"); 460 return PTR_ERR(pdata->speaker_amp_gpio); 461 } 462 463 err = devm_snd_soc_register_card(card->dev, card); 464 if (err) { 465 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", err); 466 return err; 467 } 468 469 return 0; 470 } 471 472 #if defined(CONFIG_OF) 473 static const struct of_device_id rx51_audio_of_match[] = { 474 { .compatible = "nokia,n900-audio", }, 475 {}, 476 }; 477 MODULE_DEVICE_TABLE(of, rx51_audio_of_match); 478 #endif 479 480 static struct platform_driver rx51_soc_driver = { 481 .driver = { 482 .name = "rx51-audio", 483 .of_match_table = of_match_ptr(rx51_audio_of_match), 484 }, 485 .probe = rx51_soc_probe, 486 }; 487 488 module_platform_driver(rx51_soc_driver); 489 490 MODULE_AUTHOR("Nokia Corporation"); 491 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51"); 492 MODULE_LICENSE("GPL"); 493 MODULE_ALIAS("platform:rx51-audio"); 494