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