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