1 /* 2 * Intel Skylake I2S Machine Driver with MAXIM98357A 3 * and NAU88L25 4 * 5 * Copyright (C) 2015, Intel Corporation. All rights reserved. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License version 9 * 2 as published by the Free Software Foundation. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 */ 16 17 #include <linux/module.h> 18 #include <linux/platform_device.h> 19 #include <sound/core.h> 20 #include <sound/jack.h> 21 #include <sound/pcm.h> 22 #include <sound/pcm_params.h> 23 #include <sound/soc.h> 24 #include "../../codecs/nau8825.h" 25 #include "../../codecs/hdac_hdmi.h" 26 27 #define SKL_NUVOTON_CODEC_DAI "nau8825-hifi" 28 #define SKL_MAXIM_CODEC_DAI "HiFi" 29 30 static struct snd_soc_jack skylake_headset; 31 static struct snd_soc_card skylake_audio_card; 32 33 enum { 34 SKL_DPCM_AUDIO_PB = 0, 35 SKL_DPCM_AUDIO_CP, 36 SKL_DPCM_AUDIO_REF_CP, 37 SKL_DPCM_AUDIO_DMIC_CP, 38 SKL_DPCM_AUDIO_HDMI1_PB, 39 SKL_DPCM_AUDIO_HDMI2_PB, 40 SKL_DPCM_AUDIO_HDMI3_PB, 41 }; 42 43 static inline struct snd_soc_dai *skl_get_codec_dai(struct snd_soc_card *card) 44 { 45 struct snd_soc_pcm_runtime *rtd; 46 47 list_for_each_entry(rtd, &card->rtd_list, list) { 48 49 if (!strncmp(rtd->codec_dai->name, SKL_NUVOTON_CODEC_DAI, 50 strlen(SKL_NUVOTON_CODEC_DAI))) 51 return rtd->codec_dai; 52 } 53 54 return NULL; 55 } 56 57 static int platform_clock_control(struct snd_soc_dapm_widget *w, 58 struct snd_kcontrol *k, int event) 59 { 60 struct snd_soc_dapm_context *dapm = w->dapm; 61 struct snd_soc_card *card = dapm->card; 62 struct snd_soc_dai *codec_dai; 63 int ret; 64 65 codec_dai = skl_get_codec_dai(card); 66 if (!codec_dai) { 67 dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n"); 68 return -EIO; 69 } 70 71 if (SND_SOC_DAPM_EVENT_ON(event)) { 72 ret = snd_soc_dai_set_sysclk(codec_dai, 73 NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN); 74 if (ret < 0) { 75 dev_err(card->dev, "set sysclk err = %d\n", ret); 76 return -EIO; 77 } 78 } else { 79 ret = snd_soc_dai_set_sysclk(codec_dai, 80 NAU8825_CLK_INTERNAL, 0, SND_SOC_CLOCK_IN); 81 if (ret < 0) { 82 dev_err(card->dev, "set sysclk err = %d\n", ret); 83 return -EIO; 84 } 85 } 86 87 return ret; 88 } 89 90 static const struct snd_kcontrol_new skylake_controls[] = { 91 SOC_DAPM_PIN_SWITCH("Headphone Jack"), 92 SOC_DAPM_PIN_SWITCH("Headset Mic"), 93 SOC_DAPM_PIN_SWITCH("Spk"), 94 }; 95 96 static const struct snd_soc_dapm_widget skylake_widgets[] = { 97 SND_SOC_DAPM_HP("Headphone Jack", NULL), 98 SND_SOC_DAPM_MIC("Headset Mic", NULL), 99 SND_SOC_DAPM_SPK("Spk", NULL), 100 SND_SOC_DAPM_MIC("SoC DMIC", NULL), 101 SND_SOC_DAPM_SPK("DP", NULL), 102 SND_SOC_DAPM_SPK("HDMI", NULL), 103 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, 104 platform_clock_control, SND_SOC_DAPM_PRE_PMU | 105 SND_SOC_DAPM_POST_PMD), 106 }; 107 108 static const struct snd_soc_dapm_route skylake_map[] = { 109 /* HP jack connectors - unknown if we have jack detection */ 110 { "Headphone Jack", NULL, "HPOL" }, 111 { "Headphone Jack", NULL, "HPOR" }, 112 113 /* speaker */ 114 { "Spk", NULL, "Speaker" }, 115 116 /* other jacks */ 117 { "MIC", NULL, "Headset Mic" }, 118 { "DMic", NULL, "SoC DMIC" }, 119 120 {"HDMI", NULL, "hif5 Output"}, 121 {"DP", NULL, "hif6 Output"}, 122 123 /* CODEC BE connections */ 124 { "HiFi Playback", NULL, "ssp0 Tx" }, 125 { "ssp0 Tx", NULL, "codec0_out" }, 126 127 { "Playback", NULL, "ssp1 Tx" }, 128 { "ssp1 Tx", NULL, "codec1_out" }, 129 130 { "codec0_in", NULL, "ssp1 Rx" }, 131 { "ssp1 Rx", NULL, "Capture" }, 132 133 /* DMIC */ 134 { "dmic01_hifi", NULL, "DMIC01 Rx" }, 135 { "DMIC01 Rx", NULL, "DMIC AIF" }, 136 137 { "hifi3", NULL, "iDisp3 Tx"}, 138 { "iDisp3 Tx", NULL, "iDisp3_out"}, 139 { "hifi2", NULL, "iDisp2 Tx"}, 140 { "iDisp2 Tx", NULL, "iDisp2_out"}, 141 { "hifi1", NULL, "iDisp1 Tx"}, 142 { "iDisp1 Tx", NULL, "iDisp1_out"}, 143 144 { "Headphone Jack", NULL, "Platform Clock" }, 145 { "Headset Mic", NULL, "Platform Clock" }, 146 }; 147 148 static int skylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd, 149 struct snd_pcm_hw_params *params) 150 { 151 struct snd_interval *rate = hw_param_interval(params, 152 SNDRV_PCM_HW_PARAM_RATE); 153 struct snd_interval *channels = hw_param_interval(params, 154 SNDRV_PCM_HW_PARAM_CHANNELS); 155 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 156 157 /* The ADSP will covert the FE rate to 48k, stereo */ 158 rate->min = rate->max = 48000; 159 channels->min = channels->max = 2; 160 161 /* set SSP0 to 24 bit */ 162 snd_mask_none(fmt); 163 snd_mask_set(fmt, SNDRV_PCM_FORMAT_S24_LE); 164 165 return 0; 166 } 167 168 static int skylake_nau8825_codec_init(struct snd_soc_pcm_runtime *rtd) 169 { 170 int ret; 171 struct snd_soc_codec *codec = rtd->codec; 172 173 /* 174 * Headset buttons map to the google Reference headset. 175 * These can be configured by userspace. 176 */ 177 ret = snd_soc_card_jack_new(&skylake_audio_card, "Headset Jack", 178 SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 | 179 SND_JACK_BTN_2 | SND_JACK_BTN_3, &skylake_headset, 180 NULL, 0); 181 if (ret) { 182 dev_err(rtd->dev, "Headset Jack creation failed %d\n", ret); 183 return ret; 184 } 185 186 nau8825_enable_jack_detect(codec, &skylake_headset); 187 188 snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC"); 189 190 return ret; 191 } 192 193 static int skylake_hdmi1_init(struct snd_soc_pcm_runtime *rtd) 194 { 195 struct snd_soc_dai *dai = rtd->codec_dai; 196 197 return hdac_hdmi_jack_init(dai, SKL_DPCM_AUDIO_HDMI1_PB); 198 } 199 200 static int skylake_hdmi2_init(struct snd_soc_pcm_runtime *rtd) 201 { 202 struct snd_soc_dai *dai = rtd->codec_dai; 203 204 return hdac_hdmi_jack_init(dai, SKL_DPCM_AUDIO_HDMI2_PB); 205 } 206 207 static int skylake_hdmi3_init(struct snd_soc_pcm_runtime *rtd) 208 { 209 struct snd_soc_dai *dai = rtd->codec_dai; 210 211 return hdac_hdmi_jack_init(dai, SKL_DPCM_AUDIO_HDMI3_PB); 212 } 213 214 static int skylake_nau8825_fe_init(struct snd_soc_pcm_runtime *rtd) 215 { 216 struct snd_soc_dapm_context *dapm; 217 struct snd_soc_component *component = rtd->cpu_dai->component; 218 219 dapm = snd_soc_component_get_dapm(component); 220 snd_soc_dapm_ignore_suspend(dapm, "Reference Capture"); 221 222 return 0; 223 } 224 225 static unsigned int rates[] = { 226 48000, 227 }; 228 229 static struct snd_pcm_hw_constraint_list constraints_rates = { 230 .count = ARRAY_SIZE(rates), 231 .list = rates, 232 .mask = 0, 233 }; 234 235 static unsigned int channels[] = { 236 2, 237 }; 238 239 static struct snd_pcm_hw_constraint_list constraints_channels = { 240 .count = ARRAY_SIZE(channels), 241 .list = channels, 242 .mask = 0, 243 }; 244 245 static int skl_fe_startup(struct snd_pcm_substream *substream) 246 { 247 struct snd_pcm_runtime *runtime = substream->runtime; 248 249 /* 250 * On this platform for PCM device we support, 251 * 48Khz 252 * stereo 253 * 16 bit audio 254 */ 255 256 runtime->hw.channels_max = 2; 257 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 258 &constraints_channels); 259 260 runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE; 261 snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16); 262 263 snd_pcm_hw_constraint_list(runtime, 0, 264 SNDRV_PCM_HW_PARAM_RATE, &constraints_rates); 265 266 return 0; 267 } 268 269 static const struct snd_soc_ops skylake_nau8825_fe_ops = { 270 .startup = skl_fe_startup, 271 }; 272 273 static int skylake_nau8825_hw_params(struct snd_pcm_substream *substream, 274 struct snd_pcm_hw_params *params) 275 { 276 struct snd_soc_pcm_runtime *rtd = substream->private_data; 277 struct snd_soc_dai *codec_dai = rtd->codec_dai; 278 int ret; 279 280 ret = snd_soc_dai_set_sysclk(codec_dai, 281 NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN); 282 283 if (ret < 0) 284 dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret); 285 286 return ret; 287 } 288 289 static struct snd_soc_ops skylake_nau8825_ops = { 290 .hw_params = skylake_nau8825_hw_params, 291 }; 292 293 static int skylake_dmic_fixup(struct snd_soc_pcm_runtime *rtd, 294 struct snd_pcm_hw_params *params) 295 { 296 struct snd_interval *channels = hw_param_interval(params, 297 SNDRV_PCM_HW_PARAM_CHANNELS); 298 299 if (params_channels(params) == 2) 300 channels->min = channels->max = 2; 301 else 302 channels->min = channels->max = 4; 303 304 return 0; 305 } 306 307 static unsigned int channels_dmic[] = { 308 2, 4, 309 }; 310 311 static struct snd_pcm_hw_constraint_list constraints_dmic_channels = { 312 .count = ARRAY_SIZE(channels_dmic), 313 .list = channels_dmic, 314 .mask = 0, 315 }; 316 317 static int skylake_dmic_startup(struct snd_pcm_substream *substream) 318 { 319 struct snd_pcm_runtime *runtime = substream->runtime; 320 321 runtime->hw.channels_max = 4; 322 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 323 &constraints_dmic_channels); 324 325 return snd_pcm_hw_constraint_list(substream->runtime, 0, 326 SNDRV_PCM_HW_PARAM_RATE, &constraints_rates); 327 } 328 329 static struct snd_soc_ops skylake_dmic_ops = { 330 .startup = skylake_dmic_startup, 331 }; 332 333 static unsigned int rates_16000[] = { 334 16000, 335 }; 336 337 static struct snd_pcm_hw_constraint_list constraints_16000 = { 338 .count = ARRAY_SIZE(rates_16000), 339 .list = rates_16000, 340 }; 341 342 static int skylake_refcap_startup(struct snd_pcm_substream *substream) 343 { 344 return snd_pcm_hw_constraint_list(substream->runtime, 0, 345 SNDRV_PCM_HW_PARAM_RATE, 346 &constraints_16000); 347 } 348 349 static struct snd_soc_ops skylaye_refcap_ops = { 350 .startup = skylake_refcap_startup, 351 }; 352 353 /* skylake digital audio interface glue - connects codec <--> CPU */ 354 static struct snd_soc_dai_link skylake_dais[] = { 355 /* Front End DAI links */ 356 [SKL_DPCM_AUDIO_PB] = { 357 .name = "Skl Audio Port", 358 .stream_name = "Audio", 359 .cpu_dai_name = "System Pin", 360 .platform_name = "0000:00:1f.3", 361 .dynamic = 1, 362 .codec_name = "snd-soc-dummy", 363 .codec_dai_name = "snd-soc-dummy-dai", 364 .nonatomic = 1, 365 .init = skylake_nau8825_fe_init, 366 .trigger = { 367 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 368 .dpcm_playback = 1, 369 .ops = &skylake_nau8825_fe_ops, 370 }, 371 [SKL_DPCM_AUDIO_CP] = { 372 .name = "Skl Audio Capture Port", 373 .stream_name = "Audio Record", 374 .cpu_dai_name = "System Pin", 375 .platform_name = "0000:00:1f.3", 376 .dynamic = 1, 377 .codec_name = "snd-soc-dummy", 378 .codec_dai_name = "snd-soc-dummy-dai", 379 .nonatomic = 1, 380 .trigger = { 381 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 382 .dpcm_capture = 1, 383 .ops = &skylake_nau8825_fe_ops, 384 }, 385 [SKL_DPCM_AUDIO_REF_CP] = { 386 .name = "Skl Audio Reference cap", 387 .stream_name = "Wake on Voice", 388 .cpu_dai_name = "Reference Pin", 389 .codec_name = "snd-soc-dummy", 390 .codec_dai_name = "snd-soc-dummy-dai", 391 .platform_name = "0000:00:1f.3", 392 .init = NULL, 393 .dpcm_capture = 1, 394 .ignore_suspend = 1, 395 .nonatomic = 1, 396 .dynamic = 1, 397 .ops = &skylaye_refcap_ops, 398 }, 399 [SKL_DPCM_AUDIO_DMIC_CP] = { 400 .name = "Skl Audio DMIC cap", 401 .stream_name = "dmiccap", 402 .cpu_dai_name = "DMIC Pin", 403 .codec_name = "snd-soc-dummy", 404 .codec_dai_name = "snd-soc-dummy-dai", 405 .platform_name = "0000:00:1f.3", 406 .init = NULL, 407 .dpcm_capture = 1, 408 .nonatomic = 1, 409 .dynamic = 1, 410 .ops = &skylake_dmic_ops, 411 }, 412 [SKL_DPCM_AUDIO_HDMI1_PB] = { 413 .name = "Skl HDMI Port1", 414 .stream_name = "Hdmi1", 415 .cpu_dai_name = "HDMI1 Pin", 416 .codec_name = "snd-soc-dummy", 417 .codec_dai_name = "snd-soc-dummy-dai", 418 .platform_name = "0000:00:1f.3", 419 .dpcm_playback = 1, 420 .init = NULL, 421 .trigger = { 422 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 423 .nonatomic = 1, 424 .dynamic = 1, 425 }, 426 [SKL_DPCM_AUDIO_HDMI2_PB] = { 427 .name = "Skl HDMI Port2", 428 .stream_name = "Hdmi2", 429 .cpu_dai_name = "HDMI2 Pin", 430 .codec_name = "snd-soc-dummy", 431 .codec_dai_name = "snd-soc-dummy-dai", 432 .platform_name = "0000:00:1f.3", 433 .dpcm_playback = 1, 434 .init = NULL, 435 .trigger = { 436 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 437 .nonatomic = 1, 438 .dynamic = 1, 439 }, 440 [SKL_DPCM_AUDIO_HDMI3_PB] = { 441 .name = "Skl HDMI Port3", 442 .stream_name = "Hdmi3", 443 .cpu_dai_name = "HDMI3 Pin", 444 .codec_name = "snd-soc-dummy", 445 .codec_dai_name = "snd-soc-dummy-dai", 446 .platform_name = "0000:00:1f.3", 447 .trigger = { 448 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 449 .dpcm_playback = 1, 450 .init = NULL, 451 .nonatomic = 1, 452 .dynamic = 1, 453 }, 454 455 /* Back End DAI links */ 456 { 457 /* SSP0 - Codec */ 458 .name = "SSP0-Codec", 459 .be_id = 0, 460 .cpu_dai_name = "SSP0 Pin", 461 .platform_name = "0000:00:1f.3", 462 .no_pcm = 1, 463 .codec_name = "MX98357A:00", 464 .codec_dai_name = SKL_MAXIM_CODEC_DAI, 465 .dai_fmt = SND_SOC_DAIFMT_I2S | 466 SND_SOC_DAIFMT_NB_NF | 467 SND_SOC_DAIFMT_CBS_CFS, 468 .ignore_pmdown_time = 1, 469 .be_hw_params_fixup = skylake_ssp_fixup, 470 .dpcm_playback = 1, 471 }, 472 { 473 /* SSP1 - Codec */ 474 .name = "SSP1-Codec", 475 .be_id = 1, 476 .cpu_dai_name = "SSP1 Pin", 477 .platform_name = "0000:00:1f.3", 478 .no_pcm = 1, 479 .codec_name = "i2c-10508825:00", 480 .codec_dai_name = SKL_NUVOTON_CODEC_DAI, 481 .init = skylake_nau8825_codec_init, 482 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 483 SND_SOC_DAIFMT_CBS_CFS, 484 .ignore_pmdown_time = 1, 485 .be_hw_params_fixup = skylake_ssp_fixup, 486 .ops = &skylake_nau8825_ops, 487 .dpcm_playback = 1, 488 .dpcm_capture = 1, 489 }, 490 { 491 .name = "dmic01", 492 .be_id = 2, 493 .cpu_dai_name = "DMIC01 Pin", 494 .codec_name = "dmic-codec", 495 .codec_dai_name = "dmic-hifi", 496 .platform_name = "0000:00:1f.3", 497 .be_hw_params_fixup = skylake_dmic_fixup, 498 .ignore_suspend = 1, 499 .dpcm_capture = 1, 500 .no_pcm = 1, 501 }, 502 { 503 .name = "iDisp1", 504 .be_id = 3, 505 .cpu_dai_name = "iDisp1 Pin", 506 .codec_name = "ehdaudio0D2", 507 .codec_dai_name = "intel-hdmi-hifi1", 508 .platform_name = "0000:00:1f.3", 509 .dpcm_playback = 1, 510 .init = skylake_hdmi1_init, 511 .no_pcm = 1, 512 }, 513 { 514 .name = "iDisp2", 515 .be_id = 4, 516 .cpu_dai_name = "iDisp2 Pin", 517 .codec_name = "ehdaudio0D2", 518 .codec_dai_name = "intel-hdmi-hifi2", 519 .platform_name = "0000:00:1f.3", 520 .init = skylake_hdmi2_init, 521 .dpcm_playback = 1, 522 .no_pcm = 1, 523 }, 524 { 525 .name = "iDisp3", 526 .be_id = 5, 527 .cpu_dai_name = "iDisp3 Pin", 528 .codec_name = "ehdaudio0D2", 529 .codec_dai_name = "intel-hdmi-hifi3", 530 .platform_name = "0000:00:1f.3", 531 .init = skylake_hdmi3_init, 532 .dpcm_playback = 1, 533 .no_pcm = 1, 534 }, 535 }; 536 537 /* skylake audio machine driver for SPT + NAU88L25 */ 538 static struct snd_soc_card skylake_audio_card = { 539 .name = "sklnau8825max", 540 .owner = THIS_MODULE, 541 .dai_link = skylake_dais, 542 .num_links = ARRAY_SIZE(skylake_dais), 543 .controls = skylake_controls, 544 .num_controls = ARRAY_SIZE(skylake_controls), 545 .dapm_widgets = skylake_widgets, 546 .num_dapm_widgets = ARRAY_SIZE(skylake_widgets), 547 .dapm_routes = skylake_map, 548 .num_dapm_routes = ARRAY_SIZE(skylake_map), 549 .fully_routed = true, 550 }; 551 552 static int skylake_audio_probe(struct platform_device *pdev) 553 { 554 skylake_audio_card.dev = &pdev->dev; 555 556 return devm_snd_soc_register_card(&pdev->dev, &skylake_audio_card); 557 } 558 559 static struct platform_driver skylake_audio = { 560 .probe = skylake_audio_probe, 561 .driver = { 562 .name = "skl_nau88l25_max98357a_i2s", 563 .pm = &snd_soc_pm_ops, 564 }, 565 }; 566 567 module_platform_driver(skylake_audio) 568 569 /* Module information */ 570 MODULE_DESCRIPTION("Audio Machine driver-NAU88L25 & MAX98357A in I2S mode"); 571 MODULE_AUTHOR("Rohit Ainapure <rohit.m.ainapure@intel.com"); 572 MODULE_LICENSE("GPL v2"); 573 MODULE_ALIAS("platform:skl_nau88l25_max98357a_i2s"); 574