1 /* 2 * byt_cr_dpcm_rt5640.c - ASoc Machine driver for Intel Byt CR platform 3 * 4 * Copyright (C) 2014 Intel Corp 5 * Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com> 6 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; version 2 of the License. 11 * 12 * This program is distributed in the hope that it will be useful, but 13 * WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * General Public License for more details. 16 * 17 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 18 */ 19 20 #include <linux/init.h> 21 #include <linux/module.h> 22 #include <linux/moduleparam.h> 23 #include <linux/platform_device.h> 24 #include <linux/acpi.h> 25 #include <linux/device.h> 26 #include <linux/dmi.h> 27 #include <linux/slab.h> 28 #include <asm/cpu_device_id.h> 29 #include <asm/platform_sst_audio.h> 30 #include <linux/clk.h> 31 #include <sound/pcm.h> 32 #include <sound/pcm_params.h> 33 #include <sound/soc.h> 34 #include <sound/jack.h> 35 #include "../../codecs/rt5640.h" 36 #include "../atom/sst-atom-controls.h" 37 #include "../common/sst-acpi.h" 38 #include "../common/sst-dsp.h" 39 40 enum { 41 BYT_RT5640_DMIC1_MAP, 42 BYT_RT5640_DMIC2_MAP, 43 BYT_RT5640_IN1_MAP, 44 BYT_RT5640_IN3_MAP, 45 }; 46 47 #define BYT_RT5640_MAP(quirk) ((quirk) & 0xff) 48 #define BYT_RT5640_DMIC_EN BIT(16) 49 #define BYT_RT5640_MONO_SPEAKER BIT(17) 50 #define BYT_RT5640_DIFF_MIC BIT(18) /* defaut is single-ended */ 51 #define BYT_RT5640_SSP2_AIF2 BIT(19) /* default is using AIF1 */ 52 #define BYT_RT5640_SSP0_AIF1 BIT(20) 53 #define BYT_RT5640_SSP0_AIF2 BIT(21) 54 #define BYT_RT5640_MCLK_EN BIT(22) 55 #define BYT_RT5640_MCLK_25MHZ BIT(23) 56 57 struct byt_rt5640_private { 58 struct clk *mclk; 59 }; 60 static bool is_bytcr; 61 62 static unsigned long byt_rt5640_quirk = BYT_RT5640_MCLK_EN; 63 static unsigned int quirk_override; 64 module_param_named(quirk, quirk_override, uint, 0444); 65 MODULE_PARM_DESC(quirk, "Board-specific quirk override"); 66 67 static void log_quirks(struct device *dev) 68 { 69 int map; 70 bool has_dmic = false; 71 bool has_mclk = false; 72 bool has_ssp0 = false; 73 bool has_ssp0_aif1 = false; 74 bool has_ssp0_aif2 = false; 75 bool has_ssp2_aif2 = false; 76 77 map = BYT_RT5640_MAP(byt_rt5640_quirk); 78 switch (map) { 79 case BYT_RT5640_DMIC1_MAP: 80 dev_info(dev, "quirk DMIC1_MAP enabled\n"); 81 has_dmic = true; 82 break; 83 case BYT_RT5640_DMIC2_MAP: 84 dev_info(dev, "quirk DMIC2_MAP enabled\n"); 85 has_dmic = true; 86 break; 87 case BYT_RT5640_IN1_MAP: 88 dev_info(dev, "quirk IN1_MAP enabled\n"); 89 break; 90 case BYT_RT5640_IN3_MAP: 91 dev_info(dev, "quirk IN3_MAP enabled\n"); 92 break; 93 default: 94 dev_err(dev, "quirk map 0x%x is not supported, microphone input will not work\n", map); 95 break; 96 } 97 if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) { 98 if (has_dmic) 99 dev_info(dev, "quirk DMIC enabled\n"); 100 else 101 dev_err(dev, "quirk DMIC enabled but no DMIC input set, will be ignored\n"); 102 } 103 if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) 104 dev_info(dev, "quirk MONO_SPEAKER enabled\n"); 105 if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC) { 106 if (!has_dmic) 107 dev_info(dev, "quirk DIFF_MIC enabled\n"); 108 else 109 dev_info(dev, "quirk DIFF_MIC enabled but DMIC input selected, will be ignored\n"); 110 } 111 if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) { 112 dev_info(dev, "quirk SSP0_AIF1 enabled\n"); 113 has_ssp0 = true; 114 has_ssp0_aif1 = true; 115 } 116 if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) { 117 dev_info(dev, "quirk SSP0_AIF2 enabled\n"); 118 has_ssp0 = true; 119 has_ssp0_aif2 = true; 120 } 121 if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) { 122 dev_info(dev, "quirk SSP2_AIF2 enabled\n"); 123 has_ssp2_aif2 = true; 124 } 125 if (is_bytcr && !has_ssp0) 126 dev_err(dev, "Invalid routing, bytcr detected but no SSP0-based quirk, audio cannot work with SSP2 on bytcr\n"); 127 if (has_ssp0_aif1 && has_ssp0_aif2) 128 dev_err(dev, "Invalid routing, SSP0 cannot be connected to both AIF1 and AIF2\n"); 129 if (has_ssp0 && has_ssp2_aif2) 130 dev_err(dev, "Invalid routing, cannot have both SSP0 and SSP2 connected to codec\n"); 131 132 if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) { 133 dev_info(dev, "quirk MCLK_EN enabled\n"); 134 has_mclk = true; 135 } 136 if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) { 137 if (has_mclk) 138 dev_info(dev, "quirk MCLK_25MHZ enabled\n"); 139 else 140 dev_err(dev, "quirk MCLK_25MHZ enabled but quirk MCLK not selected, will be ignored\n"); 141 } 142 } 143 144 145 #define BYT_CODEC_DAI1 "rt5640-aif1" 146 #define BYT_CODEC_DAI2 "rt5640-aif2" 147 148 static inline struct snd_soc_dai *byt_get_codec_dai(struct snd_soc_card *card) 149 { 150 struct snd_soc_pcm_runtime *rtd; 151 152 list_for_each_entry(rtd, &card->rtd_list, list) { 153 if (!strncmp(rtd->codec_dai->name, BYT_CODEC_DAI1, 154 strlen(BYT_CODEC_DAI1))) 155 return rtd->codec_dai; 156 if (!strncmp(rtd->codec_dai->name, BYT_CODEC_DAI2, 157 strlen(BYT_CODEC_DAI2))) 158 return rtd->codec_dai; 159 160 } 161 return NULL; 162 } 163 164 static int platform_clock_control(struct snd_soc_dapm_widget *w, 165 struct snd_kcontrol *k, int event) 166 { 167 struct snd_soc_dapm_context *dapm = w->dapm; 168 struct snd_soc_card *card = dapm->card; 169 struct snd_soc_dai *codec_dai; 170 struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card); 171 int ret; 172 173 codec_dai = byt_get_codec_dai(card); 174 if (!codec_dai) { 175 dev_err(card->dev, 176 "Codec dai not found; Unable to set platform clock\n"); 177 return -EIO; 178 } 179 180 if (SND_SOC_DAPM_EVENT_ON(event)) { 181 if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk) { 182 ret = clk_prepare_enable(priv->mclk); 183 if (ret < 0) { 184 dev_err(card->dev, 185 "could not configure MCLK state\n"); 186 return ret; 187 } 188 } 189 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1, 190 48000 * 512, 191 SND_SOC_CLOCK_IN); 192 } else { 193 /* 194 * Set codec clock source to internal clock before 195 * turning off the platform clock. Codec needs clock 196 * for Jack detection and button press 197 */ 198 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_RCCLK, 199 48000 * 512, 200 SND_SOC_CLOCK_IN); 201 if (!ret) { 202 if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk) 203 clk_disable_unprepare(priv->mclk); 204 } 205 } 206 207 if (ret < 0) { 208 dev_err(card->dev, "can't set codec sysclk: %d\n", ret); 209 return ret; 210 } 211 212 return 0; 213 } 214 215 static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = { 216 SND_SOC_DAPM_HP("Headphone", NULL), 217 SND_SOC_DAPM_MIC("Headset Mic", NULL), 218 SND_SOC_DAPM_MIC("Internal Mic", NULL), 219 SND_SOC_DAPM_SPK("Speaker", NULL), 220 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, 221 platform_clock_control, SND_SOC_DAPM_PRE_PMU | 222 SND_SOC_DAPM_POST_PMD), 223 224 }; 225 226 static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = { 227 {"Headphone", NULL, "Platform Clock"}, 228 {"Headset Mic", NULL, "Platform Clock"}, 229 {"Internal Mic", NULL, "Platform Clock"}, 230 {"Speaker", NULL, "Platform Clock"}, 231 232 {"Headset Mic", NULL, "MICBIAS1"}, 233 {"IN2P", NULL, "Headset Mic"}, 234 {"Headphone", NULL, "HPOL"}, 235 {"Headphone", NULL, "HPOR"}, 236 }; 237 238 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = { 239 {"DMIC1", NULL, "Internal Mic"}, 240 }; 241 242 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = { 243 {"DMIC2", NULL, "Internal Mic"}, 244 }; 245 246 static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = { 247 {"Internal Mic", NULL, "MICBIAS1"}, 248 {"IN1P", NULL, "Internal Mic"}, 249 }; 250 251 static const struct snd_soc_dapm_route byt_rt5640_intmic_in3_map[] = { 252 {"Internal Mic", NULL, "MICBIAS1"}, 253 {"IN3P", NULL, "Internal Mic"}, 254 }; 255 256 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif1_map[] = { 257 {"ssp2 Tx", NULL, "codec_out0"}, 258 {"ssp2 Tx", NULL, "codec_out1"}, 259 {"codec_in0", NULL, "ssp2 Rx"}, 260 {"codec_in1", NULL, "ssp2 Rx"}, 261 262 {"AIF1 Playback", NULL, "ssp2 Tx"}, 263 {"ssp2 Rx", NULL, "AIF1 Capture"}, 264 }; 265 266 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif2_map[] = { 267 {"ssp2 Tx", NULL, "codec_out0"}, 268 {"ssp2 Tx", NULL, "codec_out1"}, 269 {"codec_in0", NULL, "ssp2 Rx"}, 270 {"codec_in1", NULL, "ssp2 Rx"}, 271 272 {"AIF2 Playback", NULL, "ssp2 Tx"}, 273 {"ssp2 Rx", NULL, "AIF2 Capture"}, 274 }; 275 276 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif1_map[] = { 277 {"ssp0 Tx", NULL, "modem_out"}, 278 {"modem_in", NULL, "ssp0 Rx"}, 279 280 {"AIF1 Playback", NULL, "ssp0 Tx"}, 281 {"ssp0 Rx", NULL, "AIF1 Capture"}, 282 }; 283 284 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif2_map[] = { 285 {"ssp0 Tx", NULL, "modem_out"}, 286 {"modem_in", NULL, "ssp0 Rx"}, 287 288 {"AIF2 Playback", NULL, "ssp0 Tx"}, 289 {"ssp0 Rx", NULL, "AIF2 Capture"}, 290 }; 291 292 static const struct snd_soc_dapm_route byt_rt5640_stereo_spk_map[] = { 293 {"Speaker", NULL, "SPOLP"}, 294 {"Speaker", NULL, "SPOLN"}, 295 {"Speaker", NULL, "SPORP"}, 296 {"Speaker", NULL, "SPORN"}, 297 }; 298 299 static const struct snd_soc_dapm_route byt_rt5640_mono_spk_map[] = { 300 {"Speaker", NULL, "SPOLP"}, 301 {"Speaker", NULL, "SPOLN"}, 302 }; 303 304 static const struct snd_kcontrol_new byt_rt5640_controls[] = { 305 SOC_DAPM_PIN_SWITCH("Headphone"), 306 SOC_DAPM_PIN_SWITCH("Headset Mic"), 307 SOC_DAPM_PIN_SWITCH("Internal Mic"), 308 SOC_DAPM_PIN_SWITCH("Speaker"), 309 }; 310 311 static int byt_rt5640_aif1_hw_params(struct snd_pcm_substream *substream, 312 struct snd_pcm_hw_params *params) 313 { 314 struct snd_soc_pcm_runtime *rtd = substream->private_data; 315 struct snd_soc_dai *codec_dai = rtd->codec_dai; 316 int ret; 317 318 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1, 319 params_rate(params) * 512, 320 SND_SOC_CLOCK_IN); 321 322 if (ret < 0) { 323 dev_err(rtd->dev, "can't set codec clock %d\n", ret); 324 return ret; 325 } 326 327 if (!(byt_rt5640_quirk & BYT_RT5640_MCLK_EN)) { 328 /* use bitclock as PLL input */ 329 if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) || 330 (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) { 331 332 /* 2x16 bit slots on SSP0 */ 333 ret = snd_soc_dai_set_pll(codec_dai, 0, 334 RT5640_PLL1_S_BCLK1, 335 params_rate(params) * 32, 336 params_rate(params) * 512); 337 } else { 338 /* 2x15 bit slots on SSP2 */ 339 ret = snd_soc_dai_set_pll(codec_dai, 0, 340 RT5640_PLL1_S_BCLK1, 341 params_rate(params) * 50, 342 params_rate(params) * 512); 343 } 344 } else { 345 if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) { 346 ret = snd_soc_dai_set_pll(codec_dai, 0, 347 RT5640_PLL1_S_MCLK, 348 25000000, 349 params_rate(params) * 512); 350 } else { 351 ret = snd_soc_dai_set_pll(codec_dai, 0, 352 RT5640_PLL1_S_MCLK, 353 19200000, 354 params_rate(params) * 512); 355 } 356 } 357 358 if (ret < 0) { 359 dev_err(rtd->dev, "can't set codec pll: %d\n", ret); 360 return ret; 361 } 362 363 return 0; 364 } 365 366 static int byt_rt5640_quirk_cb(const struct dmi_system_id *id) 367 { 368 byt_rt5640_quirk = (unsigned long)id->driver_data; 369 return 1; 370 } 371 372 static const struct dmi_system_id byt_rt5640_quirk_table[] = { 373 { 374 .callback = byt_rt5640_quirk_cb, 375 .matches = { 376 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 377 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TA"), 378 }, 379 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP | 380 BYT_RT5640_MCLK_EN), 381 }, 382 { 383 .callback = byt_rt5640_quirk_cb, 384 .matches = { 385 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 386 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TAF"), 387 }, 388 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP | 389 BYT_RT5640_MONO_SPEAKER | 390 BYT_RT5640_DIFF_MIC | 391 BYT_RT5640_SSP0_AIF2 | 392 BYT_RT5640_MCLK_EN 393 ), 394 }, 395 { 396 .callback = byt_rt5640_quirk_cb, 397 .matches = { 398 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "DellInc."), 399 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"), 400 }, 401 .driver_data = (unsigned long *)(BYT_RT5640_DMIC2_MAP | 402 BYT_RT5640_DMIC_EN | 403 BYT_RT5640_MCLK_EN), 404 }, 405 { 406 .callback = byt_rt5640_quirk_cb, 407 .matches = { 408 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 409 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP ElitePad 1000 G2"), 410 }, 411 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP | 412 BYT_RT5640_MCLK_EN), 413 }, 414 { 415 .callback = byt_rt5640_quirk_cb, 416 .matches = { 417 DMI_MATCH(DMI_SYS_VENDOR, "Circuitco"), 418 DMI_MATCH(DMI_PRODUCT_NAME, "Minnowboard Max B3 PLATFORM"), 419 }, 420 .driver_data = (unsigned long *)(BYT_RT5640_DMIC1_MAP | 421 BYT_RT5640_DMIC_EN), 422 }, 423 { 424 .callback = byt_rt5640_quirk_cb, 425 .matches = { 426 DMI_MATCH(DMI_BOARD_VENDOR, "TECLAST"), 427 DMI_MATCH(DMI_BOARD_NAME, "tPAD"), 428 }, 429 .driver_data = (unsigned long *)(BYT_RT5640_IN3_MAP | 430 BYT_RT5640_MCLK_EN | 431 BYT_RT5640_SSP0_AIF1), 432 }, 433 { 434 .callback = byt_rt5640_quirk_cb, 435 .matches = { 436 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 437 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"), 438 }, 439 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP | 440 BYT_RT5640_MCLK_EN | 441 BYT_RT5640_SSP0_AIF1), 442 443 }, 444 { 445 .callback = byt_rt5640_quirk_cb, 446 .matches = { 447 DMI_MATCH(DMI_SYS_VENDOR, "Insyde"), 448 }, 449 .driver_data = (unsigned long *)(BYT_RT5640_IN3_MAP | 450 BYT_RT5640_MCLK_EN | 451 BYT_RT5640_SSP0_AIF1), 452 453 }, 454 {} 455 }; 456 457 static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime) 458 { 459 int ret; 460 struct snd_soc_codec *codec = runtime->codec; 461 struct snd_soc_card *card = runtime->card; 462 const struct snd_soc_dapm_route *custom_map; 463 struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card); 464 int num_routes; 465 466 card->dapm.idle_bias_off = true; 467 468 rt5640_sel_asrc_clk_src(codec, 469 RT5640_DA_STEREO_FILTER | 470 RT5640_DA_MONO_L_FILTER | 471 RT5640_DA_MONO_R_FILTER | 472 RT5640_AD_STEREO_FILTER | 473 RT5640_AD_MONO_L_FILTER | 474 RT5640_AD_MONO_R_FILTER, 475 RT5640_CLK_SEL_ASRC); 476 477 ret = snd_soc_add_card_controls(card, byt_rt5640_controls, 478 ARRAY_SIZE(byt_rt5640_controls)); 479 if (ret) { 480 dev_err(card->dev, "unable to add card controls\n"); 481 return ret; 482 } 483 484 switch (BYT_RT5640_MAP(byt_rt5640_quirk)) { 485 case BYT_RT5640_IN1_MAP: 486 custom_map = byt_rt5640_intmic_in1_map; 487 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map); 488 break; 489 case BYT_RT5640_IN3_MAP: 490 custom_map = byt_rt5640_intmic_in3_map; 491 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in3_map); 492 break; 493 case BYT_RT5640_DMIC2_MAP: 494 custom_map = byt_rt5640_intmic_dmic2_map; 495 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map); 496 break; 497 default: 498 custom_map = byt_rt5640_intmic_dmic1_map; 499 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map); 500 } 501 502 ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes); 503 if (ret) 504 return ret; 505 506 if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) { 507 ret = snd_soc_dapm_add_routes(&card->dapm, 508 byt_rt5640_ssp2_aif2_map, 509 ARRAY_SIZE(byt_rt5640_ssp2_aif2_map)); 510 } else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) { 511 ret = snd_soc_dapm_add_routes(&card->dapm, 512 byt_rt5640_ssp0_aif1_map, 513 ARRAY_SIZE(byt_rt5640_ssp0_aif1_map)); 514 } else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) { 515 ret = snd_soc_dapm_add_routes(&card->dapm, 516 byt_rt5640_ssp0_aif2_map, 517 ARRAY_SIZE(byt_rt5640_ssp0_aif2_map)); 518 } else { 519 ret = snd_soc_dapm_add_routes(&card->dapm, 520 byt_rt5640_ssp2_aif1_map, 521 ARRAY_SIZE(byt_rt5640_ssp2_aif1_map)); 522 } 523 if (ret) 524 return ret; 525 526 if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) { 527 ret = snd_soc_dapm_add_routes(&card->dapm, 528 byt_rt5640_mono_spk_map, 529 ARRAY_SIZE(byt_rt5640_mono_spk_map)); 530 } else { 531 ret = snd_soc_dapm_add_routes(&card->dapm, 532 byt_rt5640_stereo_spk_map, 533 ARRAY_SIZE(byt_rt5640_stereo_spk_map)); 534 } 535 if (ret) 536 return ret; 537 538 if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC) { 539 snd_soc_update_bits(codec, RT5640_IN1_IN2, RT5640_IN_DF1, 540 RT5640_IN_DF1); 541 } 542 543 if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) { 544 ret = rt5640_dmic_enable(codec, 0, 0); 545 if (ret) 546 return ret; 547 } 548 549 snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone"); 550 snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker"); 551 552 if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk) { 553 /* 554 * The firmware might enable the clock at 555 * boot (this information may or may not 556 * be reflected in the enable clock register). 557 * To change the rate we must disable the clock 558 * first to cover these cases. Due to common 559 * clock framework restrictions that do not allow 560 * to disable a clock that has not been enabled, 561 * we need to enable the clock first. 562 */ 563 ret = clk_prepare_enable(priv->mclk); 564 if (!ret) 565 clk_disable_unprepare(priv->mclk); 566 567 if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) 568 ret = clk_set_rate(priv->mclk, 25000000); 569 else 570 ret = clk_set_rate(priv->mclk, 19200000); 571 572 if (ret) 573 dev_err(card->dev, "unable to set MCLK rate\n"); 574 } 575 576 return ret; 577 } 578 579 static const struct snd_soc_pcm_stream byt_rt5640_dai_params = { 580 .formats = SNDRV_PCM_FMTBIT_S24_LE, 581 .rate_min = 48000, 582 .rate_max = 48000, 583 .channels_min = 2, 584 .channels_max = 2, 585 }; 586 587 static int byt_rt5640_codec_fixup(struct snd_soc_pcm_runtime *rtd, 588 struct snd_pcm_hw_params *params) 589 { 590 struct snd_interval *rate = hw_param_interval(params, 591 SNDRV_PCM_HW_PARAM_RATE); 592 struct snd_interval *channels = hw_param_interval(params, 593 SNDRV_PCM_HW_PARAM_CHANNELS); 594 int ret; 595 596 /* The DSP will covert the FE rate to 48k, stereo */ 597 rate->min = rate->max = 48000; 598 channels->min = channels->max = 2; 599 600 if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) || 601 (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) { 602 603 /* set SSP0 to 16-bit */ 604 params_set_format(params, SNDRV_PCM_FORMAT_S16_LE); 605 606 /* 607 * Default mode for SSP configuration is TDM 4 slot, override config 608 * with explicit setting to I2S 2ch 16-bit. The word length is set with 609 * dai_set_tdm_slot() since there is no other API exposed 610 */ 611 ret = snd_soc_dai_set_fmt(rtd->cpu_dai, 612 SND_SOC_DAIFMT_I2S | 613 SND_SOC_DAIFMT_NB_NF | 614 SND_SOC_DAIFMT_CBS_CFS 615 ); 616 if (ret < 0) { 617 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret); 618 return ret; 619 } 620 621 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16); 622 if (ret < 0) { 623 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret); 624 return ret; 625 } 626 627 } else { 628 629 /* set SSP2 to 24-bit */ 630 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); 631 632 /* 633 * Default mode for SSP configuration is TDM 4 slot, override config 634 * with explicit setting to I2S 2ch 24-bit. The word length is set with 635 * dai_set_tdm_slot() since there is no other API exposed 636 */ 637 ret = snd_soc_dai_set_fmt(rtd->cpu_dai, 638 SND_SOC_DAIFMT_I2S | 639 SND_SOC_DAIFMT_NB_NF | 640 SND_SOC_DAIFMT_CBS_CFS 641 ); 642 if (ret < 0) { 643 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret); 644 return ret; 645 } 646 647 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24); 648 if (ret < 0) { 649 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret); 650 return ret; 651 } 652 } 653 return 0; 654 } 655 656 static int byt_rt5640_aif1_startup(struct snd_pcm_substream *substream) 657 { 658 return snd_pcm_hw_constraint_single(substream->runtime, 659 SNDRV_PCM_HW_PARAM_RATE, 48000); 660 } 661 662 static const struct snd_soc_ops byt_rt5640_aif1_ops = { 663 .startup = byt_rt5640_aif1_startup, 664 }; 665 666 static const struct snd_soc_ops byt_rt5640_be_ssp2_ops = { 667 .hw_params = byt_rt5640_aif1_hw_params, 668 }; 669 670 static struct snd_soc_dai_link byt_rt5640_dais[] = { 671 [MERR_DPCM_AUDIO] = { 672 .name = "Baytrail Audio Port", 673 .stream_name = "Baytrail Audio", 674 .cpu_dai_name = "media-cpu-dai", 675 .codec_dai_name = "snd-soc-dummy-dai", 676 .codec_name = "snd-soc-dummy", 677 .platform_name = "sst-mfld-platform", 678 .nonatomic = true, 679 .dynamic = 1, 680 .dpcm_playback = 1, 681 .dpcm_capture = 1, 682 .ops = &byt_rt5640_aif1_ops, 683 }, 684 [MERR_DPCM_DEEP_BUFFER] = { 685 .name = "Deep-Buffer Audio Port", 686 .stream_name = "Deep-Buffer Audio", 687 .cpu_dai_name = "deepbuffer-cpu-dai", 688 .codec_dai_name = "snd-soc-dummy-dai", 689 .codec_name = "snd-soc-dummy", 690 .platform_name = "sst-mfld-platform", 691 .nonatomic = true, 692 .dynamic = 1, 693 .dpcm_playback = 1, 694 .ops = &byt_rt5640_aif1_ops, 695 }, 696 [MERR_DPCM_COMPR] = { 697 .name = "Baytrail Compressed Port", 698 .stream_name = "Baytrail Compress", 699 .cpu_dai_name = "compress-cpu-dai", 700 .codec_dai_name = "snd-soc-dummy-dai", 701 .codec_name = "snd-soc-dummy", 702 .platform_name = "sst-mfld-platform", 703 }, 704 /* back ends */ 705 { 706 .name = "SSP2-Codec", 707 .id = 1, 708 .cpu_dai_name = "ssp2-port", /* overwritten for ssp0 routing */ 709 .platform_name = "sst-mfld-platform", 710 .no_pcm = 1, 711 .codec_dai_name = "rt5640-aif1", /* changed w/ quirk */ 712 .codec_name = "i2c-10EC5640:00", /* overwritten with HID */ 713 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 714 | SND_SOC_DAIFMT_CBS_CFS, 715 .be_hw_params_fixup = byt_rt5640_codec_fixup, 716 .ignore_suspend = 1, 717 .nonatomic = true, 718 .dpcm_playback = 1, 719 .dpcm_capture = 1, 720 .init = byt_rt5640_init, 721 .ops = &byt_rt5640_be_ssp2_ops, 722 }, 723 }; 724 725 /* SoC card */ 726 static struct snd_soc_card byt_rt5640_card = { 727 .name = "bytcr-rt5640", 728 .owner = THIS_MODULE, 729 .dai_link = byt_rt5640_dais, 730 .num_links = ARRAY_SIZE(byt_rt5640_dais), 731 .dapm_widgets = byt_rt5640_widgets, 732 .num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets), 733 .dapm_routes = byt_rt5640_audio_map, 734 .num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map), 735 .fully_routed = true, 736 }; 737 738 static char byt_rt5640_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */ 739 static char byt_rt5640_codec_aif_name[12]; /* = "rt5640-aif[1|2]" */ 740 static char byt_rt5640_cpu_dai_name[10]; /* = "ssp[0|2]-port" */ 741 742 static bool is_valleyview(void) 743 { 744 static const struct x86_cpu_id cpu_ids[] = { 745 { X86_VENDOR_INTEL, 6, 55 }, /* Valleyview, Bay Trail */ 746 {} 747 }; 748 749 if (!x86_match_cpu(cpu_ids)) 750 return false; 751 return true; 752 } 753 754 struct acpi_chan_package { /* ACPICA seems to require 64 bit integers */ 755 u64 aif_value; /* 1: AIF1, 2: AIF2 */ 756 u64 mclock_value; /* usually 25MHz (0x17d7940), ignored */ 757 }; 758 759 static int snd_byt_rt5640_mc_probe(struct platform_device *pdev) 760 { 761 int ret_val = 0; 762 struct sst_acpi_mach *mach; 763 const char *i2c_name = NULL; 764 int i; 765 int dai_index; 766 struct byt_rt5640_private *priv; 767 768 is_bytcr = false; 769 priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_ATOMIC); 770 if (!priv) 771 return -ENOMEM; 772 773 /* register the soc card */ 774 byt_rt5640_card.dev = &pdev->dev; 775 mach = byt_rt5640_card.dev->platform_data; 776 snd_soc_card_set_drvdata(&byt_rt5640_card, priv); 777 778 /* fix index of codec dai */ 779 dai_index = MERR_DPCM_COMPR + 1; 780 for (i = 0; i < ARRAY_SIZE(byt_rt5640_dais); i++) { 781 if (!strcmp(byt_rt5640_dais[i].codec_name, "i2c-10EC5640:00")) { 782 dai_index = i; 783 break; 784 } 785 } 786 787 /* fixup codec name based on HID */ 788 i2c_name = sst_acpi_find_name_from_hid(mach->id); 789 if (i2c_name != NULL) { 790 snprintf(byt_rt5640_codec_name, sizeof(byt_rt5640_codec_name), 791 "%s%s", "i2c-", i2c_name); 792 793 byt_rt5640_dais[dai_index].codec_name = byt_rt5640_codec_name; 794 } 795 796 /* 797 * swap SSP0 if bytcr is detected 798 * (will be overridden if DMI quirk is detected) 799 */ 800 if (is_valleyview()) { 801 struct sst_platform_info *p_info = mach->pdata; 802 const struct sst_res_info *res_info = p_info->res_info; 803 804 if (res_info->acpi_ipc_irq_index == 0) 805 is_bytcr = true; 806 } 807 808 if (is_bytcr) { 809 /* 810 * Baytrail CR platforms may have CHAN package in BIOS, try 811 * to find relevant routing quirk based as done on Windows 812 * platforms. We have to read the information directly from the 813 * BIOS, at this stage the card is not created and the links 814 * with the codec driver/pdata are non-existent 815 */ 816 817 struct acpi_chan_package chan_package; 818 819 /* format specified: 2 64-bit integers */ 820 struct acpi_buffer format = {sizeof("NN"), "NN"}; 821 struct acpi_buffer state = {0, NULL}; 822 struct sst_acpi_package_context pkg_ctx; 823 bool pkg_found = false; 824 825 state.length = sizeof(chan_package); 826 state.pointer = &chan_package; 827 828 pkg_ctx.name = "CHAN"; 829 pkg_ctx.length = 2; 830 pkg_ctx.format = &format; 831 pkg_ctx.state = &state; 832 pkg_ctx.data_valid = false; 833 834 pkg_found = sst_acpi_find_package_from_hid(mach->id, &pkg_ctx); 835 if (pkg_found) { 836 if (chan_package.aif_value == 1) { 837 dev_info(&pdev->dev, "BIOS Routing: AIF1 connected\n"); 838 byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF1; 839 } else if (chan_package.aif_value == 2) { 840 dev_info(&pdev->dev, "BIOS Routing: AIF2 connected\n"); 841 byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2; 842 } else { 843 dev_info(&pdev->dev, "BIOS Routing isn't valid, ignored\n"); 844 pkg_found = false; 845 } 846 } 847 848 if (!pkg_found) { 849 /* no BIOS indications, assume SSP0-AIF2 connection */ 850 byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2; 851 } 852 853 /* change defaults for Baytrail-CR capture */ 854 byt_rt5640_quirk |= BYT_RT5640_IN1_MAP; 855 byt_rt5640_quirk |= BYT_RT5640_DIFF_MIC; 856 } else { 857 byt_rt5640_quirk |= (BYT_RT5640_DMIC1_MAP | 858 BYT_RT5640_DMIC_EN); 859 } 860 861 /* check quirks before creating card */ 862 dmi_check_system(byt_rt5640_quirk_table); 863 if (quirk_override) { 864 dev_info(&pdev->dev, "Overriding quirk 0x%x => 0x%x\n", 865 (unsigned int)byt_rt5640_quirk, quirk_override); 866 byt_rt5640_quirk = quirk_override; 867 } 868 log_quirks(&pdev->dev); 869 870 if ((byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) || 871 (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) { 872 873 /* fixup codec aif name */ 874 snprintf(byt_rt5640_codec_aif_name, 875 sizeof(byt_rt5640_codec_aif_name), 876 "%s", "rt5640-aif2"); 877 878 byt_rt5640_dais[dai_index].codec_dai_name = 879 byt_rt5640_codec_aif_name; 880 } 881 882 if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) || 883 (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) { 884 885 /* fixup cpu dai name name */ 886 snprintf(byt_rt5640_cpu_dai_name, 887 sizeof(byt_rt5640_cpu_dai_name), 888 "%s", "ssp0-port"); 889 890 byt_rt5640_dais[dai_index].cpu_dai_name = 891 byt_rt5640_cpu_dai_name; 892 } 893 894 if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && (is_valleyview())) { 895 priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3"); 896 if (IS_ERR(priv->mclk)) { 897 ret_val = PTR_ERR(priv->mclk); 898 899 dev_err(&pdev->dev, 900 "Failed to get MCLK from pmc_plt_clk_3: %d\n", 901 ret_val); 902 903 /* 904 * Fall back to bit clock usage for -ENOENT (clock not 905 * available likely due to missing dependencies), bail 906 * for all other errors, including -EPROBE_DEFER 907 */ 908 if (ret_val != -ENOENT) 909 return ret_val; 910 byt_rt5640_quirk &= ~BYT_RT5640_MCLK_EN; 911 } 912 } 913 914 ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card); 915 916 if (ret_val) { 917 dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n", 918 ret_val); 919 return ret_val; 920 } 921 platform_set_drvdata(pdev, &byt_rt5640_card); 922 return ret_val; 923 } 924 925 static struct platform_driver snd_byt_rt5640_mc_driver = { 926 .driver = { 927 .name = "bytcr_rt5640", 928 }, 929 .probe = snd_byt_rt5640_mc_probe, 930 }; 931 932 module_platform_driver(snd_byt_rt5640_mc_driver); 933 934 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver"); 935 MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>"); 936 MODULE_LICENSE("GPL v2"); 937 MODULE_ALIAS("platform:bytcr_rt5640"); 938