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 }; 392 393 static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime) 394 { 395 int ret; 396 struct snd_soc_codec *codec = runtime->codec; 397 struct snd_soc_card *card = runtime->card; 398 const struct snd_soc_dapm_route *custom_map; 399 struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card); 400 int num_routes; 401 402 card->dapm.idle_bias_off = true; 403 404 rt5640_sel_asrc_clk_src(codec, 405 RT5640_DA_STEREO_FILTER | 406 RT5640_DA_MONO_L_FILTER | 407 RT5640_DA_MONO_R_FILTER | 408 RT5640_AD_STEREO_FILTER | 409 RT5640_AD_MONO_L_FILTER | 410 RT5640_AD_MONO_R_FILTER, 411 RT5640_CLK_SEL_ASRC); 412 413 ret = snd_soc_add_card_controls(card, byt_rt5640_controls, 414 ARRAY_SIZE(byt_rt5640_controls)); 415 if (ret) { 416 dev_err(card->dev, "unable to add card controls\n"); 417 return ret; 418 } 419 420 switch (BYT_RT5640_MAP(byt_rt5640_quirk)) { 421 case BYT_RT5640_IN1_MAP: 422 custom_map = byt_rt5640_intmic_in1_map; 423 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map); 424 break; 425 case BYT_RT5640_IN3_MAP: 426 custom_map = byt_rt5640_intmic_in3_map; 427 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in3_map); 428 break; 429 case BYT_RT5640_DMIC2_MAP: 430 custom_map = byt_rt5640_intmic_dmic2_map; 431 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map); 432 break; 433 default: 434 custom_map = byt_rt5640_intmic_dmic1_map; 435 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map); 436 } 437 438 ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes); 439 if (ret) 440 return ret; 441 442 if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) { 443 ret = snd_soc_dapm_add_routes(&card->dapm, 444 byt_rt5640_ssp2_aif2_map, 445 ARRAY_SIZE(byt_rt5640_ssp2_aif2_map)); 446 } else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) { 447 ret = snd_soc_dapm_add_routes(&card->dapm, 448 byt_rt5640_ssp0_aif1_map, 449 ARRAY_SIZE(byt_rt5640_ssp0_aif1_map)); 450 } else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) { 451 ret = snd_soc_dapm_add_routes(&card->dapm, 452 byt_rt5640_ssp0_aif2_map, 453 ARRAY_SIZE(byt_rt5640_ssp0_aif2_map)); 454 } else { 455 ret = snd_soc_dapm_add_routes(&card->dapm, 456 byt_rt5640_ssp2_aif1_map, 457 ARRAY_SIZE(byt_rt5640_ssp2_aif1_map)); 458 } 459 if (ret) 460 return ret; 461 462 if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) { 463 ret = snd_soc_dapm_add_routes(&card->dapm, 464 byt_rt5640_mono_spk_map, 465 ARRAY_SIZE(byt_rt5640_mono_spk_map)); 466 } else { 467 ret = snd_soc_dapm_add_routes(&card->dapm, 468 byt_rt5640_stereo_spk_map, 469 ARRAY_SIZE(byt_rt5640_stereo_spk_map)); 470 } 471 if (ret) 472 return ret; 473 474 if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC) { 475 snd_soc_update_bits(codec, RT5640_IN1_IN2, RT5640_IN_DF1, 476 RT5640_IN_DF1); 477 } 478 479 if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) { 480 ret = rt5640_dmic_enable(codec, 0, 0); 481 if (ret) 482 return ret; 483 } 484 485 snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone"); 486 snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker"); 487 488 if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk) { 489 /* 490 * The firmware might enable the clock at 491 * boot (this information may or may not 492 * be reflected in the enable clock register). 493 * To change the rate we must disable the clock 494 * first to cover these cases. Due to common 495 * clock framework restrictions that do not allow 496 * to disable a clock that has not been enabled, 497 * we need to enable the clock first. 498 */ 499 ret = clk_prepare_enable(priv->mclk); 500 if (!ret) 501 clk_disable_unprepare(priv->mclk); 502 503 if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) 504 ret = clk_set_rate(priv->mclk, 25000000); 505 else 506 ret = clk_set_rate(priv->mclk, 19200000); 507 508 if (ret) 509 dev_err(card->dev, "unable to set MCLK rate\n"); 510 } 511 512 return ret; 513 } 514 515 static const struct snd_soc_pcm_stream byt_rt5640_dai_params = { 516 .formats = SNDRV_PCM_FMTBIT_S24_LE, 517 .rate_min = 48000, 518 .rate_max = 48000, 519 .channels_min = 2, 520 .channels_max = 2, 521 }; 522 523 static int byt_rt5640_codec_fixup(struct snd_soc_pcm_runtime *rtd, 524 struct snd_pcm_hw_params *params) 525 { 526 struct snd_interval *rate = hw_param_interval(params, 527 SNDRV_PCM_HW_PARAM_RATE); 528 struct snd_interval *channels = hw_param_interval(params, 529 SNDRV_PCM_HW_PARAM_CHANNELS); 530 int ret; 531 532 /* The DSP will covert the FE rate to 48k, stereo */ 533 rate->min = rate->max = 48000; 534 channels->min = channels->max = 2; 535 536 if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) || 537 (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) { 538 539 /* set SSP0 to 16-bit */ 540 params_set_format(params, SNDRV_PCM_FORMAT_S16_LE); 541 542 /* 543 * Default mode for SSP configuration is TDM 4 slot, override config 544 * with explicit setting to I2S 2ch 16-bit. The word length is set with 545 * dai_set_tdm_slot() since there is no other API exposed 546 */ 547 ret = snd_soc_dai_set_fmt(rtd->cpu_dai, 548 SND_SOC_DAIFMT_I2S | 549 SND_SOC_DAIFMT_NB_IF | 550 SND_SOC_DAIFMT_CBS_CFS 551 ); 552 if (ret < 0) { 553 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret); 554 return ret; 555 } 556 557 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16); 558 if (ret < 0) { 559 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret); 560 return ret; 561 } 562 563 } else { 564 565 /* set SSP2 to 24-bit */ 566 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); 567 568 /* 569 * Default mode for SSP configuration is TDM 4 slot, override config 570 * with explicit setting to I2S 2ch 24-bit. The word length is set with 571 * dai_set_tdm_slot() since there is no other API exposed 572 */ 573 ret = snd_soc_dai_set_fmt(rtd->cpu_dai, 574 SND_SOC_DAIFMT_I2S | 575 SND_SOC_DAIFMT_NB_IF | 576 SND_SOC_DAIFMT_CBS_CFS 577 ); 578 if (ret < 0) { 579 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret); 580 return ret; 581 } 582 583 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24); 584 if (ret < 0) { 585 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret); 586 return ret; 587 } 588 } 589 return 0; 590 } 591 592 static int byt_rt5640_aif1_startup(struct snd_pcm_substream *substream) 593 { 594 return snd_pcm_hw_constraint_single(substream->runtime, 595 SNDRV_PCM_HW_PARAM_RATE, 48000); 596 } 597 598 static const struct snd_soc_ops byt_rt5640_aif1_ops = { 599 .startup = byt_rt5640_aif1_startup, 600 }; 601 602 static const struct snd_soc_ops byt_rt5640_be_ssp2_ops = { 603 .hw_params = byt_rt5640_aif1_hw_params, 604 }; 605 606 static struct snd_soc_dai_link byt_rt5640_dais[] = { 607 [MERR_DPCM_AUDIO] = { 608 .name = "Baytrail Audio Port", 609 .stream_name = "Baytrail Audio", 610 .cpu_dai_name = "media-cpu-dai", 611 .codec_dai_name = "snd-soc-dummy-dai", 612 .codec_name = "snd-soc-dummy", 613 .platform_name = "sst-mfld-platform", 614 .ignore_suspend = 1, 615 .dynamic = 1, 616 .dpcm_playback = 1, 617 .dpcm_capture = 1, 618 .ops = &byt_rt5640_aif1_ops, 619 }, 620 [MERR_DPCM_DEEP_BUFFER] = { 621 .name = "Deep-Buffer Audio Port", 622 .stream_name = "Deep-Buffer Audio", 623 .cpu_dai_name = "deepbuffer-cpu-dai", 624 .codec_dai_name = "snd-soc-dummy-dai", 625 .codec_name = "snd-soc-dummy", 626 .platform_name = "sst-mfld-platform", 627 .ignore_suspend = 1, 628 .nonatomic = true, 629 .dynamic = 1, 630 .dpcm_playback = 1, 631 .ops = &byt_rt5640_aif1_ops, 632 }, 633 [MERR_DPCM_COMPR] = { 634 .name = "Baytrail Compressed Port", 635 .stream_name = "Baytrail Compress", 636 .cpu_dai_name = "compress-cpu-dai", 637 .codec_dai_name = "snd-soc-dummy-dai", 638 .codec_name = "snd-soc-dummy", 639 .platform_name = "sst-mfld-platform", 640 }, 641 /* back ends */ 642 { 643 .name = "SSP2-Codec", 644 .id = 1, 645 .cpu_dai_name = "ssp2-port", /* overwritten for ssp0 routing */ 646 .platform_name = "sst-mfld-platform", 647 .no_pcm = 1, 648 .codec_dai_name = "rt5640-aif1", /* changed w/ quirk */ 649 .codec_name = "i2c-10EC5640:00", /* overwritten with HID */ 650 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 651 | SND_SOC_DAIFMT_CBS_CFS, 652 .be_hw_params_fixup = byt_rt5640_codec_fixup, 653 .ignore_suspend = 1, 654 .dpcm_playback = 1, 655 .dpcm_capture = 1, 656 .init = byt_rt5640_init, 657 .ops = &byt_rt5640_be_ssp2_ops, 658 }, 659 }; 660 661 /* SoC card */ 662 static struct snd_soc_card byt_rt5640_card = { 663 .name = "bytcr-rt5640", 664 .owner = THIS_MODULE, 665 .dai_link = byt_rt5640_dais, 666 .num_links = ARRAY_SIZE(byt_rt5640_dais), 667 .dapm_widgets = byt_rt5640_widgets, 668 .num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets), 669 .dapm_routes = byt_rt5640_audio_map, 670 .num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map), 671 .fully_routed = true, 672 }; 673 674 static char byt_rt5640_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */ 675 static char byt_rt5640_codec_aif_name[12]; /* = "rt5640-aif[1|2]" */ 676 static char byt_rt5640_cpu_dai_name[10]; /* = "ssp[0|2]-port" */ 677 678 static bool is_valleyview(void) 679 { 680 static const struct x86_cpu_id cpu_ids[] = { 681 { X86_VENDOR_INTEL, 6, 55 }, /* Valleyview, Bay Trail */ 682 {} 683 }; 684 685 if (!x86_match_cpu(cpu_ids)) 686 return false; 687 return true; 688 } 689 690 struct acpi_chan_package { /* ACPICA seems to require 64 bit integers */ 691 u64 aif_value; /* 1: AIF1, 2: AIF2 */ 692 u64 mclock_value; /* usually 25MHz (0x17d7940), ignored */ 693 }; 694 695 static int snd_byt_rt5640_mc_probe(struct platform_device *pdev) 696 { 697 int ret_val = 0; 698 struct sst_acpi_mach *mach; 699 const char *i2c_name = NULL; 700 int i; 701 int dai_index; 702 struct byt_rt5640_private *priv; 703 bool is_bytcr = false; 704 705 priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_ATOMIC); 706 if (!priv) 707 return -ENOMEM; 708 709 /* register the soc card */ 710 byt_rt5640_card.dev = &pdev->dev; 711 mach = byt_rt5640_card.dev->platform_data; 712 snd_soc_card_set_drvdata(&byt_rt5640_card, priv); 713 714 /* fix index of codec dai */ 715 dai_index = MERR_DPCM_COMPR + 1; 716 for (i = 0; i < ARRAY_SIZE(byt_rt5640_dais); i++) { 717 if (!strcmp(byt_rt5640_dais[i].codec_name, "i2c-10EC5640:00")) { 718 dai_index = i; 719 break; 720 } 721 } 722 723 /* fixup codec name based on HID */ 724 i2c_name = sst_acpi_find_name_from_hid(mach->id); 725 if (i2c_name != NULL) { 726 snprintf(byt_rt5640_codec_name, sizeof(byt_rt5640_codec_name), 727 "%s%s", "i2c-", i2c_name); 728 729 byt_rt5640_dais[dai_index].codec_name = byt_rt5640_codec_name; 730 } 731 732 /* 733 * swap SSP0 if bytcr is detected 734 * (will be overridden if DMI quirk is detected) 735 */ 736 if (is_valleyview()) { 737 struct sst_platform_info *p_info = mach->pdata; 738 const struct sst_res_info *res_info = p_info->res_info; 739 740 if (res_info->acpi_ipc_irq_index == 0) 741 is_bytcr = true; 742 } 743 744 if (is_bytcr) { 745 /* 746 * Baytrail CR platforms may have CHAN package in BIOS, try 747 * to find relevant routing quirk based as done on Windows 748 * platforms. We have to read the information directly from the 749 * BIOS, at this stage the card is not created and the links 750 * with the codec driver/pdata are non-existent 751 */ 752 753 struct acpi_chan_package chan_package; 754 755 /* format specified: 2 64-bit integers */ 756 struct acpi_buffer format = {sizeof("NN"), "NN"}; 757 struct acpi_buffer state = {0, NULL}; 758 struct sst_acpi_package_context pkg_ctx; 759 bool pkg_found = false; 760 761 state.length = sizeof(chan_package); 762 state.pointer = &chan_package; 763 764 pkg_ctx.name = "CHAN"; 765 pkg_ctx.length = 2; 766 pkg_ctx.format = &format; 767 pkg_ctx.state = &state; 768 pkg_ctx.data_valid = false; 769 770 pkg_found = sst_acpi_find_package_from_hid(mach->id, &pkg_ctx); 771 if (pkg_found) { 772 if (chan_package.aif_value == 1) { 773 dev_info(&pdev->dev, "BIOS Routing: AIF1 connected\n"); 774 byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF1; 775 } else if (chan_package.aif_value == 2) { 776 dev_info(&pdev->dev, "BIOS Routing: AIF2 connected\n"); 777 byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2; 778 } else { 779 dev_info(&pdev->dev, "BIOS Routing isn't valid, ignored\n"); 780 pkg_found = false; 781 } 782 } 783 784 if (!pkg_found) { 785 /* no BIOS indications, assume SSP0-AIF2 connection */ 786 byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2; 787 } 788 789 /* change defaults for Baytrail-CR capture */ 790 byt_rt5640_quirk |= BYT_RT5640_IN1_MAP; 791 byt_rt5640_quirk |= BYT_RT5640_DIFF_MIC; 792 } else { 793 byt_rt5640_quirk |= (BYT_RT5640_DMIC1_MAP | 794 BYT_RT5640_DMIC_EN); 795 } 796 797 /* check quirks before creating card */ 798 dmi_check_system(byt_rt5640_quirk_table); 799 log_quirks(&pdev->dev); 800 801 if ((byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) || 802 (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) { 803 804 /* fixup codec aif name */ 805 snprintf(byt_rt5640_codec_aif_name, 806 sizeof(byt_rt5640_codec_aif_name), 807 "%s", "rt5640-aif2"); 808 809 byt_rt5640_dais[dai_index].codec_dai_name = 810 byt_rt5640_codec_aif_name; 811 } 812 813 if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) || 814 (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) { 815 816 /* fixup cpu dai name name */ 817 snprintf(byt_rt5640_cpu_dai_name, 818 sizeof(byt_rt5640_cpu_dai_name), 819 "%s", "ssp0-port"); 820 821 byt_rt5640_dais[dai_index].cpu_dai_name = 822 byt_rt5640_cpu_dai_name; 823 } 824 825 if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && (is_valleyview())) { 826 priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3"); 827 if (IS_ERR(priv->mclk)) { 828 ret_val = PTR_ERR(priv->mclk); 829 830 dev_err(&pdev->dev, 831 "Failed to get MCLK from pmc_plt_clk_3: %d\n", 832 ret_val); 833 834 /* 835 * Fall back to bit clock usage for -ENOENT (clock not 836 * available likely due to missing dependencies), bail 837 * for all other errors, including -EPROBE_DEFER 838 */ 839 if (ret_val != -ENOENT) 840 return ret_val; 841 byt_rt5640_quirk &= ~BYT_RT5640_MCLK_EN; 842 } 843 } 844 845 ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card); 846 847 if (ret_val) { 848 dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n", 849 ret_val); 850 return ret_val; 851 } 852 platform_set_drvdata(pdev, &byt_rt5640_card); 853 return ret_val; 854 } 855 856 static struct platform_driver snd_byt_rt5640_mc_driver = { 857 .driver = { 858 .name = "bytcr_rt5640", 859 .pm = &snd_soc_pm_ops, 860 }, 861 .probe = snd_byt_rt5640_mc_probe, 862 }; 863 864 module_platform_driver(snd_byt_rt5640_mc_driver); 865 866 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver"); 867 MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>"); 868 MODULE_LICENSE("GPL v2"); 869 MODULE_ALIAS("platform:bytcr_rt5640"); 870