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 static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = {
  36         SND_SOC_DAPM_HP("Headphone", NULL),
  37         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  38         SND_SOC_DAPM_MIC("Internal Mic", NULL),
  39         SND_SOC_DAPM_SPK("Speaker", NULL),
  40 };
  41
  42 static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
  43         {"AIF1 Playback", NULL, "ssp2 Tx"},
  44         {"ssp2 Tx", NULL, "codec_out0"},
  45         {"ssp2 Tx", NULL, "codec_out1"},
  46         {"codec_in0", NULL, "ssp2 Rx"},
  47         {"codec_in1", NULL, "ssp2 Rx"},
  48         {"ssp2 Rx", NULL, "AIF1 Capture"},
  49
  50         {"Headset Mic", NULL, "MICBIAS1"},
  51         {"IN2P", NULL, "Headset Mic"},
  52         {"Headphone", NULL, "HPOL"},
  53         {"Headphone", NULL, "HPOR"},
  54         {"Speaker", NULL, "SPOLP"},
  55         {"Speaker", NULL, "SPOLN"},
  56         {"Speaker", NULL, "SPORP"},
  57         {"Speaker", NULL, "SPORN"},
  58 };
  59
  60 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = {
  61         {"DMIC1", NULL, "Internal Mic"},
  62 };
  63
  64 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = {
  65         {"DMIC2", NULL, "Internal Mic"},
  66 };
  67
  68 static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = {
  69         {"Internal Mic", NULL, "MICBIAS1"},
  70         {"IN1P", NULL, "Internal Mic"},
  71 };
  72
  73 enum {
  74         BYT_RT5640_DMIC1_MAP,
  75         BYT_RT5640_DMIC2_MAP,
  76         BYT_RT5640_IN1_MAP,
  77 };
  78
  79 #define BYT_RT5640_MAP(quirk)   ((quirk) & 0xff)
  80 #define BYT_RT5640_DMIC_EN      BIT(16)
  81
  82 static unsigned long byt_rt5640_quirk = BYT_RT5640_DMIC1_MAP |
  83                                         BYT_RT5640_DMIC_EN;
  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         dmi_check_system(byt_rt5640_quirk_table);
 178         switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
 179         case BYT_RT5640_IN1_MAP:
 180                 custom_map = byt_rt5640_intmic_in1_map;
 181                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map);
 182                 break;
 183         case BYT_RT5640_DMIC2_MAP:
 184                 custom_map = byt_rt5640_intmic_dmic2_map;
 185                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map);
 186                 break;
 187         default:
 188                 custom_map = byt_rt5640_intmic_dmic1_map;
 189                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map);
 190         }
 191
 192         ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
 193         if (ret)
 194                 return ret;
 195
 196         if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) {
 197                 ret = rt5640_dmic_enable(codec, 0, 0);
 198                 if (ret)
 199                         return ret;
 200         }
 201
 202         snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
 203         snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
 204
 205         return ret;
 206 }
 207
 208 static const struct snd_soc_pcm_stream byt_rt5640_dai_params = {
 209         .formats = SNDRV_PCM_FMTBIT_S24_LE,
 210         .rate_min = 48000,
 211         .rate_max = 48000,
 212         .channels_min = 2,
 213         .channels_max = 2,
 214 };
 215
 216 static int byt_rt5640_codec_fixup(struct snd_soc_pcm_runtime *rtd,
 217                             struct snd_pcm_hw_params *params)
 218 {
 219         struct snd_interval *rate = hw_param_interval(params,
 220                         SNDRV_PCM_HW_PARAM_RATE);
 221         struct snd_interval *channels = hw_param_interval(params,
 222                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
 223         int ret;
 224
 225         /* The DSP will covert the FE rate to 48k, stereo, 24bits */
 226         rate->min = rate->max = 48000;
 227         channels->min = channels->max = 2;
 228
 229         /* set SSP2 to 24-bit */
 230         params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
 231
 232         /*
 233          * Default mode for SSP configuration is TDM 4 slot, override config
 234          * with explicit setting to I2S 2ch 24-bit. The word length is set with
 235          * dai_set_tdm_slot() since there is no other API exposed
 236          */
 237         ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
 238                                   SND_SOC_DAIFMT_I2S     |
 239                                   SND_SOC_DAIFMT_NB_IF   |
 240                                   SND_SOC_DAIFMT_CBS_CFS
 241                                   );
 242         if (ret < 0) {
 243                 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
 244                 return ret;
 245         }
 246
 247         ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
 248         if (ret < 0) {
 249                 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
 250                 return ret;
 251         }
 252
 253         return 0;
 254 }
 255
 256 static int byt_rt5640_aif1_startup(struct snd_pcm_substream *substream)
 257 {
 258         return snd_pcm_hw_constraint_single(substream->runtime,
 259                         SNDRV_PCM_HW_PARAM_RATE, 48000);
 260 }
 261
 262 static struct snd_soc_ops byt_rt5640_aif1_ops = {
 263         .startup = byt_rt5640_aif1_startup,
 264 };
 265
 266 static struct snd_soc_ops byt_rt5640_be_ssp2_ops = {
 267         .hw_params = byt_rt5640_aif1_hw_params,
 268 };
 269
 270 static struct snd_soc_dai_link byt_rt5640_dais[] = {
 271         [MERR_DPCM_AUDIO] = {
 272                 .name = "Baytrail Audio Port",
 273                 .stream_name = "Baytrail Audio",
 274                 .cpu_dai_name = "media-cpu-dai",
 275                 .codec_dai_name = "snd-soc-dummy-dai",
 276                 .codec_name = "snd-soc-dummy",
 277                 .platform_name = "sst-mfld-platform",
 278                 .ignore_suspend = 1,
 279                 .dynamic = 1,
 280                 .dpcm_playback = 1,
 281                 .dpcm_capture = 1,
 282                 .ops = &byt_rt5640_aif1_ops,
 283         },
 284         [MERR_DPCM_DEEP_BUFFER] = {
 285                 .name = "Deep-Buffer Audio Port",
 286                 .stream_name = "Deep-Buffer Audio",
 287                 .cpu_dai_name = "deepbuffer-cpu-dai",
 288                 .codec_dai_name = "snd-soc-dummy-dai",
 289                 .codec_name = "snd-soc-dummy",
 290                 .platform_name = "sst-mfld-platform",
 291                 .ignore_suspend = 1,
 292                 .nonatomic = true,
 293                 .dynamic = 1,
 294                 .dpcm_playback = 1,
 295                 .ops = &byt_rt5640_aif1_ops,
 296         },
 297         [MERR_DPCM_COMPR] = {
 298                 .name = "Baytrail Compressed Port",
 299                 .stream_name = "Baytrail Compress",
 300                 .cpu_dai_name = "compress-cpu-dai",
 301                 .codec_dai_name = "snd-soc-dummy-dai",
 302                 .codec_name = "snd-soc-dummy",
 303                 .platform_name = "sst-mfld-platform",
 304         },
 305                 /* back ends */
 306         {
 307                 .name = "SSP2-Codec",
 308                 .be_id = 1,
 309                 .cpu_dai_name = "ssp2-port",
 310                 .platform_name = "sst-mfld-platform",
 311                 .no_pcm = 1,
 312                 .codec_dai_name = "rt5640-aif1",
 313                 .codec_name = "i2c-10EC5640:00", /* overwritten with HID */
 314                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 315                                                 | SND_SOC_DAIFMT_CBS_CFS,
 316                 .be_hw_params_fixup = byt_rt5640_codec_fixup,
 317                 .ignore_suspend = 1,
 318                 .dpcm_playback = 1,
 319                 .dpcm_capture = 1,
 320                 .init = byt_rt5640_init,
 321                 .ops = &byt_rt5640_be_ssp2_ops,
 322         },
 323 };
 324
 325 /* SoC card */
 326 static struct snd_soc_card byt_rt5640_card = {
 327         .name = "bytcr-rt5640",
 328         .owner = THIS_MODULE,
 329         .dai_link = byt_rt5640_dais,
 330         .num_links = ARRAY_SIZE(byt_rt5640_dais),
 331         .dapm_widgets = byt_rt5640_widgets,
 332         .num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
 333         .dapm_routes = byt_rt5640_audio_map,
 334         .num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
 335         .fully_routed = true,
 336 };
 337
 338 static char byt_rt5640_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */
 339
 340 static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
 341 {
 342         int ret_val = 0;
 343         struct sst_acpi_mach *mach;
 344
 345         /* register the soc card */
 346         byt_rt5640_card.dev = &pdev->dev;
 347         mach = byt_rt5640_card.dev->platform_data;
 348
 349         /* fixup codec name based on HID */
 350         snprintf(byt_rt5640_codec_name, sizeof(byt_rt5640_codec_name),
 351                  "%s%s%s", "i2c-", mach->id, ":00");
 352         byt_rt5640_dais[MERR_DPCM_COMPR+1].codec_name = byt_rt5640_codec_name;
 353
 354         ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card);
 355
 356         if (ret_val) {
 357                 dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
 358                         ret_val);
 359                 return ret_val;
 360         }
 361         platform_set_drvdata(pdev, &byt_rt5640_card);
 362         return ret_val;
 363 }
 364
 365 static struct platform_driver snd_byt_rt5640_mc_driver = {
 366         .driver = {
 367                 .name = "bytcr_rt5640",
 368                 .pm = &snd_soc_pm_ops,
 369         },
 370         .probe = snd_byt_rt5640_mc_probe,
 371 };
 372
 373 module_platform_driver(snd_byt_rt5640_mc_driver);
 374
 375 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
 376 MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>");
 377 MODULE_LICENSE("GPL v2");
 378 MODULE_ALIAS("platform:bytcr_rt5640");