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/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 <sound/pcm.h>
  28 #include <sound/pcm_params.h>
  29 #include <sound/soc.h>
  30 #include <sound/jack.h>
  31 #include "../../codecs/rt5640.h"
  32 #include "../atom/sst-atom-controls.h"
  33 #include "../common/sst-acpi.h"
  34
  35 enum {
  36         BYT_RT5640_DMIC1_MAP,
  37         BYT_RT5640_DMIC2_MAP,
  38         BYT_RT5640_IN1_MAP,
  39 };
  40
  41 #define BYT_RT5640_MAP(quirk)   ((quirk) & 0xff)
  42 #define BYT_RT5640_DMIC_EN      BIT(16)
  43 #define BYT_RT5640_MONO_SPEAKER BIT(17)
  44 #define BYT_RT5640_DIFF_MIC     BIT(18) /* defaut is single-ended */
  45
  46 static unsigned long byt_rt5640_quirk = BYT_RT5640_DMIC1_MAP |
  47                                         BYT_RT5640_DMIC_EN;
  48
  49 static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = {
  50         SND_SOC_DAPM_HP("Headphone", NULL),
  51         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  52         SND_SOC_DAPM_MIC("Internal Mic", NULL),
  53         SND_SOC_DAPM_SPK("Speaker", NULL),
  54 };
  55
  56 static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
  57         {"AIF1 Playback", NULL, "ssp2 Tx"},
  58         {"ssp2 Tx", NULL, "codec_out0"},
  59         {"ssp2 Tx", NULL, "codec_out1"},
  60         {"codec_in0", NULL, "ssp2 Rx"},
  61         {"codec_in1", NULL, "ssp2 Rx"},
  62         {"ssp2 Rx", NULL, "AIF1 Capture"},
  63
  64         {"Headset Mic", NULL, "MICBIAS1"},
  65         {"IN2P", NULL, "Headset Mic"},
  66         {"Headphone", NULL, "HPOL"},
  67         {"Headphone", NULL, "HPOR"},
  68 };
  69
  70 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = {
  71         {"DMIC1", NULL, "Internal Mic"},
  72 };
  73
  74 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = {
  75         {"DMIC2", NULL, "Internal Mic"},
  76 };
  77
  78 static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = {
  79         {"Internal Mic", NULL, "MICBIAS1"},
  80         {"IN1P", NULL, "Internal Mic"},
  81 };
  82
  83 static const struct snd_soc_dapm_route byt_rt5640_stereo_spk_map[] = {
  84         {"Speaker", NULL, "SPOLP"},
  85         {"Speaker", NULL, "SPOLN"},
  86         {"Speaker", NULL, "SPORP"},
  87         {"Speaker", NULL, "SPORN"},
  88 };
  89
  90 static const struct snd_soc_dapm_route byt_rt5640_mono_spk_map[] = {
  91         {"Speaker", NULL, "SPOLP"},
  92         {"Speaker", NULL, "SPOLN"},
  93 };
  94
  95 static const struct snd_kcontrol_new byt_rt5640_controls[] = {
  96         SOC_DAPM_PIN_SWITCH("Headphone"),
  97         SOC_DAPM_PIN_SWITCH("Headset Mic"),
  98         SOC_DAPM_PIN_SWITCH("Internal Mic"),
  99         SOC_DAPM_PIN_SWITCH("Speaker"),
 100 };
 101
 102 static int byt_rt5640_aif1_hw_params(struct snd_pcm_substream *substream,
 103                                         struct snd_pcm_hw_params *params)
 104 {
 105         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 106         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 107         int ret;
 108
 109         snd_soc_dai_set_bclk_ratio(codec_dai, 50);
 110
 111         ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
 112                                      params_rate(params) * 512,
 113                                      SND_SOC_CLOCK_IN);
 114         if (ret < 0) {
 115                 dev_err(rtd->dev, "can't set codec clock %d\n", ret);
 116                 return ret;
 117         }
 118
 119         ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_BCLK1,
 120                                   params_rate(params) * 50,
 121                                   params_rate(params) * 512);
 122         if (ret < 0) {
 123                 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
 124                 return ret;
 125         }
 126
 127         return 0;
 128 }
 129
 130 static int byt_rt5640_quirk_cb(const struct dmi_system_id *id)
 131 {
 132         byt_rt5640_quirk = (unsigned long)id->driver_data;
 133         return 1;
 134 }
 135
 136 static const struct dmi_system_id byt_rt5640_quirk_table[] = {
 137         {
 138                 .callback = byt_rt5640_quirk_cb,
 139                 .matches = {
 140                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 141                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TA"),
 142                 },
 143                 .driver_data = (unsigned long *)BYT_RT5640_IN1_MAP,
 144         },
 145         {
 146                 .callback = byt_rt5640_quirk_cb,
 147                 .matches = {
 148                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 149                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TAF"),
 150                 },
 151                 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
 152                                                  BYT_RT5640_MONO_SPEAKER |
 153                                                  BYT_RT5640_DIFF_MIC
 154                                                  ),
 155         },
 156         {
 157                 .callback = byt_rt5640_quirk_cb,
 158                 .matches = {
 159                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "DellInc."),
 160                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"),
 161                 },
 162                 .driver_data = (unsigned long *)(BYT_RT5640_DMIC2_MAP |
 163                                                  BYT_RT5640_DMIC_EN),
 164         },
 165         {
 166                 .callback = byt_rt5640_quirk_cb,
 167                 .matches = {
 168                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 169                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP ElitePad 1000 G2"),
 170                 },
 171                 .driver_data = (unsigned long *)BYT_RT5640_IN1_MAP,
 172         },
 173         {}
 174 };
 175
 176 static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
 177 {
 178         int ret;
 179         struct snd_soc_codec *codec = runtime->codec;
 180         struct snd_soc_card *card = runtime->card;
 181         const struct snd_soc_dapm_route *custom_map;
 182         int num_routes;
 183
 184         card->dapm.idle_bias_off = true;
 185
 186         rt5640_sel_asrc_clk_src(codec,
 187                                 RT5640_DA_STEREO_FILTER |
 188                                 RT5640_AD_STEREO_FILTER,
 189                                 RT5640_CLK_SEL_ASRC);
 190
 191         ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
 192                                         ARRAY_SIZE(byt_rt5640_controls));
 193         if (ret) {
 194                 dev_err(card->dev, "unable to add card controls\n");
 195                 return ret;
 196         }
 197
 198         switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
 199         case BYT_RT5640_IN1_MAP:
 200                 custom_map = byt_rt5640_intmic_in1_map;
 201                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map);
 202                 break;
 203         case BYT_RT5640_DMIC2_MAP:
 204                 custom_map = byt_rt5640_intmic_dmic2_map;
 205                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map);
 206                 break;
 207         default:
 208                 custom_map = byt_rt5640_intmic_dmic1_map;
 209                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map);
 210         }
 211
 212         ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
 213         if (ret)
 214                 return ret;
 215
 216         if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) {
 217                 ret = snd_soc_dapm_add_routes(&card->dapm,
 218                                         byt_rt5640_mono_spk_map,
 219                                         ARRAY_SIZE(byt_rt5640_mono_spk_map));
 220         } else {
 221                 ret = snd_soc_dapm_add_routes(&card->dapm,
 222                                         byt_rt5640_stereo_spk_map,
 223                                         ARRAY_SIZE(byt_rt5640_stereo_spk_map));
 224         }
 225         if (ret)
 226                 return ret;
 227
 228         if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC) {
 229                 snd_soc_update_bits(codec,  RT5640_IN1_IN2, RT5640_IN_DF1,
 230                                     RT5640_IN_DF1);
 231         }
 232
 233         if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) {
 234                 ret = rt5640_dmic_enable(codec, 0, 0);
 235                 if (ret)
 236                         return ret;
 237         }
 238
 239         snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
 240         snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
 241
 242         return ret;
 243 }
 244
 245 static const struct snd_soc_pcm_stream byt_rt5640_dai_params = {
 246         .formats = SNDRV_PCM_FMTBIT_S24_LE,
 247         .rate_min = 48000,
 248         .rate_max = 48000,
 249         .channels_min = 2,
 250         .channels_max = 2,
 251 };
 252
 253 static int byt_rt5640_codec_fixup(struct snd_soc_pcm_runtime *rtd,
 254                             struct snd_pcm_hw_params *params)
 255 {
 256         struct snd_interval *rate = hw_param_interval(params,
 257                         SNDRV_PCM_HW_PARAM_RATE);
 258         struct snd_interval *channels = hw_param_interval(params,
 259                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
 260         int ret;
 261
 262         /* The DSP will covert the FE rate to 48k, stereo, 24bits */
 263         rate->min = rate->max = 48000;
 264         channels->min = channels->max = 2;
 265
 266         /* set SSP2 to 24-bit */
 267         params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
 268
 269         /*
 270          * Default mode for SSP configuration is TDM 4 slot, override config
 271          * with explicit setting to I2S 2ch 24-bit. The word length is set with
 272          * dai_set_tdm_slot() since there is no other API exposed
 273          */
 274         ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
 275                                   SND_SOC_DAIFMT_I2S     |
 276                                   SND_SOC_DAIFMT_NB_IF   |
 277                                   SND_SOC_DAIFMT_CBS_CFS
 278                                   );
 279         if (ret < 0) {
 280                 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
 281                 return ret;
 282         }
 283
 284         ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
 285         if (ret < 0) {
 286                 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
 287                 return ret;
 288         }
 289
 290         return 0;
 291 }
 292
 293 static int byt_rt5640_aif1_startup(struct snd_pcm_substream *substream)
 294 {
 295         return snd_pcm_hw_constraint_single(substream->runtime,
 296                         SNDRV_PCM_HW_PARAM_RATE, 48000);
 297 }
 298
 299 static struct snd_soc_ops byt_rt5640_aif1_ops = {
 300         .startup = byt_rt5640_aif1_startup,
 301 };
 302
 303 static struct snd_soc_ops byt_rt5640_be_ssp2_ops = {
 304         .hw_params = byt_rt5640_aif1_hw_params,
 305 };
 306
 307 static struct snd_soc_dai_link byt_rt5640_dais[] = {
 308         [MERR_DPCM_AUDIO] = {
 309                 .name = "Baytrail Audio Port",
 310                 .stream_name = "Baytrail Audio",
 311                 .cpu_dai_name = "media-cpu-dai",
 312                 .codec_dai_name = "snd-soc-dummy-dai",
 313                 .codec_name = "snd-soc-dummy",
 314                 .platform_name = "sst-mfld-platform",
 315                 .ignore_suspend = 1,
 316                 .dynamic = 1,
 317                 .dpcm_playback = 1,
 318                 .dpcm_capture = 1,
 319                 .ops = &byt_rt5640_aif1_ops,
 320         },
 321         [MERR_DPCM_DEEP_BUFFER] = {
 322                 .name = "Deep-Buffer Audio Port",
 323                 .stream_name = "Deep-Buffer Audio",
 324                 .cpu_dai_name = "deepbuffer-cpu-dai",
 325                 .codec_dai_name = "snd-soc-dummy-dai",
 326                 .codec_name = "snd-soc-dummy",
 327                 .platform_name = "sst-mfld-platform",
 328                 .ignore_suspend = 1,
 329                 .nonatomic = true,
 330                 .dynamic = 1,
 331                 .dpcm_playback = 1,
 332                 .ops = &byt_rt5640_aif1_ops,
 333         },
 334         [MERR_DPCM_COMPR] = {
 335                 .name = "Baytrail Compressed Port",
 336                 .stream_name = "Baytrail Compress",
 337                 .cpu_dai_name = "compress-cpu-dai",
 338                 .codec_dai_name = "snd-soc-dummy-dai",
 339                 .codec_name = "snd-soc-dummy",
 340                 .platform_name = "sst-mfld-platform",
 341         },
 342                 /* back ends */
 343         {
 344                 .name = "SSP2-Codec",
 345                 .id = 1,
 346                 .cpu_dai_name = "ssp2-port",
 347                 .platform_name = "sst-mfld-platform",
 348                 .no_pcm = 1,
 349                 .codec_dai_name = "rt5640-aif1",
 350                 .codec_name = "i2c-10EC5640:00", /* overwritten with HID */
 351                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 352                                                 | SND_SOC_DAIFMT_CBS_CFS,
 353                 .be_hw_params_fixup = byt_rt5640_codec_fixup,
 354                 .ignore_suspend = 1,
 355                 .dpcm_playback = 1,
 356                 .dpcm_capture = 1,
 357                 .init = byt_rt5640_init,
 358                 .ops = &byt_rt5640_be_ssp2_ops,
 359         },
 360 };
 361
 362 /* SoC card */
 363 static struct snd_soc_card byt_rt5640_card = {
 364         .name = "bytcr-rt5640",
 365         .owner = THIS_MODULE,
 366         .dai_link = byt_rt5640_dais,
 367         .num_links = ARRAY_SIZE(byt_rt5640_dais),
 368         .dapm_widgets = byt_rt5640_widgets,
 369         .num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
 370         .dapm_routes = byt_rt5640_audio_map,
 371         .num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
 372         .fully_routed = true,
 373 };
 374
 375 static char byt_rt5640_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */
 376
 377 static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
 378 {
 379         int ret_val = 0;
 380         struct sst_acpi_mach *mach;
 381         const char *i2c_name = NULL;
 382         int i;
 383         int dai_index;
 384
 385         /* register the soc card */
 386         byt_rt5640_card.dev = &pdev->dev;
 387         mach = byt_rt5640_card.dev->platform_data;
 388
 389         /* fix index of codec dai */
 390         dai_index = MERR_DPCM_COMPR + 1;
 391         for (i = 0; i < ARRAY_SIZE(byt_rt5640_dais); i++) {
 392                 if (!strcmp(byt_rt5640_dais[i].codec_name, "i2c-10EC5640:00")) {
 393                         dai_index = i;
 394                         break;
 395                 }
 396         }
 397
 398         /* fixup codec name based on HID */
 399         i2c_name = sst_acpi_find_name_from_hid(mach->id);
 400         if (i2c_name != NULL) {
 401                 snprintf(byt_rt5640_codec_name, sizeof(byt_rt5640_codec_name),
 402                         "%s%s", "i2c-", i2c_name);
 403
 404                 byt_rt5640_dais[dai_index].codec_name = byt_rt5640_codec_name;
 405         }
 406
 407         /* check quirks before creating card */
 408         dmi_check_system(byt_rt5640_quirk_table);
 409
 410         ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card);
 411
 412         if (ret_val) {
 413                 dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
 414                         ret_val);
 415                 return ret_val;
 416         }
 417         platform_set_drvdata(pdev, &byt_rt5640_card);
 418         return ret_val;
 419 }
 420
 421 static struct platform_driver snd_byt_rt5640_mc_driver = {
 422         .driver = {
 423                 .name = "bytcr_rt5640",
 424                 .pm = &snd_soc_pm_ops,
 425         },
 426         .probe = snd_byt_rt5640_mc_probe,
 427 };
 428
 429 module_platform_driver(snd_byt_rt5640_mc_driver);
 430
 431 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
 432 MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>");
 433 MODULE_LICENSE("GPL v2");
 434 MODULE_ALIAS("platform:bytcr_rt5640");