sound/soc/intel/boards/bytcr_rt5640.c

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