sound/soc/intel/boards/cht_bsw_max98090_ti.c

   1 /*
   2  *  cht-bsw-max98090.c - ASoc Machine driver for Intel Cherryview-based
   3  *  platforms Cherrytrail and Braswell, with max98090 & TI codec.
   4  *
   5  *  Copyright (C) 2015 Intel Corp
   6  *  Author: Fang, Yang A <yang.a.fang@intel.com>
   7  *  This file is modified from cht_bsw_rt5645.c
   8  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   9  *
  10  *  This program is free software; you can redistribute it and/or modify
  11  *  it under the terms of the GNU General Public License as published by
  12  *  the Free Software Foundation; version 2 of the License.
  13  *
  14  *  This program is distributed in the hope that it will be useful, but
  15  *  WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  *  General Public License for more details.
  18  *
  19  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  20  */
  21
  22 #include <linux/module.h>
  23 #include <linux/platform_device.h>
  24 #include <linux/slab.h>
  25 #include <linux/acpi.h>
  26 #include <sound/pcm.h>
  27 #include <sound/pcm_params.h>
  28 #include <sound/soc.h>
  29 #include <sound/jack.h>
  30 #include "../../codecs/max98090.h"
  31 #include "../atom/sst-atom-controls.h"
  32 #include "../../codecs/ts3a227e.h"
  33
  34 #define CHT_PLAT_CLK_3_HZ       19200000
  35 #define CHT_CODEC_DAI   "HiFi"
  36
  37 struct cht_mc_private {
  38         struct snd_soc_jack jack;
  39         bool ts3a227e_present;
  40 };
  41
  42 static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card)
  43 {
  44         int i;
  45
  46         for (i = 0; i < card->num_rtd; i++) {
  47                 struct snd_soc_pcm_runtime *rtd;
  48
  49                 rtd = card->rtd + i;
  50                 if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI,
  51                              strlen(CHT_CODEC_DAI)))
  52                         return rtd->codec_dai;
  53         }
  54         return NULL;
  55 }
  56
  57 static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
  58         SND_SOC_DAPM_HP("Headphone", NULL),
  59         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  60         SND_SOC_DAPM_MIC("Int Mic", NULL),
  61         SND_SOC_DAPM_SPK("Ext Spk", NULL),
  62 };
  63
  64 static const struct snd_soc_dapm_route cht_audio_map[] = {
  65         {"IN34", NULL, "Headset Mic"},
  66         {"Headset Mic", NULL, "MICBIAS"},
  67         {"DMICL", NULL, "Int Mic"},
  68         {"Headphone", NULL, "HPL"},
  69         {"Headphone", NULL, "HPR"},
  70         {"Ext Spk", NULL, "SPKL"},
  71         {"Ext Spk", NULL, "SPKR"},
  72         {"HiFi Playback", NULL, "ssp2 Tx"},
  73         {"ssp2 Tx", NULL, "codec_out0"},
  74         {"ssp2 Tx", NULL, "codec_out1"},
  75         {"codec_in0", NULL, "ssp2 Rx" },
  76         {"codec_in1", NULL, "ssp2 Rx" },
  77         {"ssp2 Rx", NULL, "HiFi Capture"},
  78 };
  79
  80 static const struct snd_kcontrol_new cht_mc_controls[] = {
  81         SOC_DAPM_PIN_SWITCH("Headphone"),
  82         SOC_DAPM_PIN_SWITCH("Headset Mic"),
  83         SOC_DAPM_PIN_SWITCH("Int Mic"),
  84         SOC_DAPM_PIN_SWITCH("Ext Spk"),
  85 };
  86
  87 static int cht_aif1_hw_params(struct snd_pcm_substream *substream,
  88                              struct snd_pcm_hw_params *params)
  89 {
  90         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  91         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  92         int ret;
  93
  94         ret = snd_soc_dai_set_sysclk(codec_dai, M98090_REG_SYSTEM_CLOCK,
  95                                      CHT_PLAT_CLK_3_HZ, SND_SOC_CLOCK_IN);
  96         if (ret < 0) {
  97                 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
  98                 return ret;
  99         }
 100
 101         return 0;
 102 }
 103
 104 static int cht_ti_jack_event(struct notifier_block *nb,
 105                 unsigned long event, void *data)
 106 {
 107         struct snd_soc_jack *jack = (struct snd_soc_jack *)data;
 108         struct snd_soc_dapm_context *dapm = &jack->card->dapm;
 109
 110         if (event & SND_JACK_MICROPHONE) {
 111                 snd_soc_dapm_force_enable_pin(dapm, "SHDN");
 112                 snd_soc_dapm_force_enable_pin(dapm, "MICBIAS");
 113                 snd_soc_dapm_sync(dapm);
 114         } else {
 115                 snd_soc_dapm_disable_pin(dapm, "MICBIAS");
 116                 snd_soc_dapm_disable_pin(dapm, "SHDN");
 117                 snd_soc_dapm_sync(dapm);
 118         }
 119
 120         return 0;
 121 }
 122
 123 static struct notifier_block cht_jack_nb = {
 124         .notifier_call = cht_ti_jack_event,
 125 };
 126
 127 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
 128 {
 129         int ret;
 130         int jack_type;
 131         struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
 132         struct snd_soc_jack *jack = &ctx->jack;
 133
 134         if (ctx->ts3a227e_present) {
 135                 /*
 136                  * The jack has already been created in the
 137                  * cht_max98090_headset_init() function.
 138                  */
 139                 snd_soc_jack_notifier_register(jack, &cht_jack_nb);
 140                 return 0;
 141         }
 142
 143         jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE;
 144
 145         ret = snd_soc_card_jack_new(runtime->card, "Headset Jack",
 146                                         jack_type, jack, NULL, 0);
 147         if (ret) {
 148                 dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret);
 149                 return ret;
 150         }
 151
 152         if (ctx->ts3a227e_present)
 153                 snd_soc_jack_notifier_register(jack, &cht_jack_nb);
 154
 155         return ret;
 156 }
 157
 158 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
 159                             struct snd_pcm_hw_params *params)
 160 {
 161         struct snd_interval *rate = hw_param_interval(params,
 162                         SNDRV_PCM_HW_PARAM_RATE);
 163         struct snd_interval *channels = hw_param_interval(params,
 164                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
 165         int ret = 0;
 166         unsigned int fmt = 0;
 167
 168         ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
 169         if (ret < 0) {
 170                 dev_err(rtd->dev, "can't set cpu_dai slot fmt: %d\n", ret);
 171                 return ret;
 172         }
 173
 174         fmt = SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF
 175                                 | SND_SOC_DAIFMT_CBS_CFS;
 176
 177         ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt);
 178         if (ret < 0) {
 179                 dev_err(rtd->dev, "can't set cpu_dai set fmt: %d\n", ret);
 180                 return ret;
 181         }
 182
 183         /* The DSP will covert the FE rate to 48k, stereo, 24bits */
 184         rate->min = rate->max = 48000;
 185         channels->min = channels->max = 2;
 186
 187         /* set SSP2 to 24-bit */
 188         params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
 189         return 0;
 190 }
 191
 192 static int cht_aif1_startup(struct snd_pcm_substream *substream)
 193 {
 194         return snd_pcm_hw_constraint_single(substream->runtime,
 195                         SNDRV_PCM_HW_PARAM_RATE, 48000);
 196 }
 197
 198 static int cht_max98090_headset_init(struct snd_soc_component *component)
 199 {
 200         struct snd_soc_card *card = component->card;
 201         struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
 202         struct snd_soc_jack *jack = &ctx->jack;
 203         int jack_type;
 204         int ret;
 205
 206         /*
 207          * TI supports 4 butons headset detection
 208          * KEY_MEDIA
 209          * KEY_VOICECOMMAND
 210          * KEY_VOLUMEUP
 211          * KEY_VOLUMEDOWN
 212          */
 213         jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
 214                     SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 215                     SND_JACK_BTN_2 | SND_JACK_BTN_3;
 216
 217         ret = snd_soc_card_jack_new(card, "Headset Jack", jack_type,
 218                                     jack, NULL, 0);
 219         if (ret) {
 220                 dev_err(card->dev, "Headset Jack creation failed %d\n", ret);
 221                 return ret;
 222         }
 223
 224         return ts3a227e_enable_jack_detect(component, &ctx->jack);
 225 }
 226
 227 static struct snd_soc_ops cht_aif1_ops = {
 228         .startup = cht_aif1_startup,
 229 };
 230
 231 static struct snd_soc_ops cht_be_ssp2_ops = {
 232         .hw_params = cht_aif1_hw_params,
 233 };
 234
 235 static struct snd_soc_aux_dev cht_max98090_headset_dev = {
 236         .name = "Headset Chip",
 237         .init = cht_max98090_headset_init,
 238         .codec_name = "i2c-104C227E:00",
 239 };
 240
 241 static struct snd_soc_dai_link cht_dailink[] = {
 242         [MERR_DPCM_AUDIO] = {
 243                 .name = "Audio Port",
 244                 .stream_name = "Audio",
 245                 .cpu_dai_name = "media-cpu-dai",
 246                 .codec_dai_name = "snd-soc-dummy-dai",
 247                 .codec_name = "snd-soc-dummy",
 248                 .platform_name = "sst-mfld-platform",
 249                 .nonatomic = true,
 250                 .dynamic = 1,
 251                 .dpcm_playback = 1,
 252                 .dpcm_capture = 1,
 253                 .ops = &cht_aif1_ops,
 254         },
 255         [MERR_DPCM_COMPR] = {
 256                 .name = "Compressed Port",
 257                 .stream_name = "Compress",
 258                 .cpu_dai_name = "compress-cpu-dai",
 259                 .codec_dai_name = "snd-soc-dummy-dai",
 260                 .codec_name = "snd-soc-dummy",
 261                 .platform_name = "sst-mfld-platform",
 262         },
 263         /* back ends */
 264         {
 265                 .name = "SSP2-Codec",
 266                 .be_id = 1,
 267                 .cpu_dai_name = "ssp2-port",
 268                 .platform_name = "sst-mfld-platform",
 269                 .no_pcm = 1,
 270                 .codec_dai_name = "HiFi",
 271                 .codec_name = "i2c-193C9890:00",
 272                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 273                                         | SND_SOC_DAIFMT_CBS_CFS,
 274                 .init = cht_codec_init,
 275                 .be_hw_params_fixup = cht_codec_fixup,
 276                 .dpcm_playback = 1,
 277                 .dpcm_capture = 1,
 278                 .ops = &cht_be_ssp2_ops,
 279         },
 280 };
 281
 282 /* SoC card */
 283 static struct snd_soc_card snd_soc_card_cht = {
 284         .name = "chtmax98090",
 285         .owner = THIS_MODULE,
 286         .dai_link = cht_dailink,
 287         .num_links = ARRAY_SIZE(cht_dailink),
 288         .aux_dev = &cht_max98090_headset_dev,
 289         .num_aux_devs = 1,
 290         .dapm_widgets = cht_dapm_widgets,
 291         .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
 292         .dapm_routes = cht_audio_map,
 293         .num_dapm_routes = ARRAY_SIZE(cht_audio_map),
 294         .controls = cht_mc_controls,
 295         .num_controls = ARRAY_SIZE(cht_mc_controls),
 296 };
 297
 298 static acpi_status snd_acpi_codec_match(acpi_handle handle, u32 level,
 299                                                 void *context, void **ret)
 300 {
 301         *(bool *)context = true;
 302         return AE_OK;
 303 }
 304
 305 static int snd_cht_mc_probe(struct platform_device *pdev)
 306 {
 307         int ret_val = 0;
 308         bool found = false;
 309         struct cht_mc_private *drv;
 310
 311         drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC);
 312         if (!drv)
 313                 return -ENOMEM;
 314
 315         if (ACPI_SUCCESS(acpi_get_devices(
 316                                         "104C227E",
 317                                         snd_acpi_codec_match,
 318                                         &found, NULL)) && found) {
 319                 drv->ts3a227e_present = true;
 320         } else {
 321                 /* no need probe TI jack detection chip */
 322                 snd_soc_card_cht.aux_dev = NULL;
 323                 snd_soc_card_cht.num_aux_devs = 0;
 324                 drv->ts3a227e_present = false;
 325         }
 326
 327         /* register the soc card */
 328         snd_soc_card_cht.dev = &pdev->dev;
 329         snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
 330         ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
 331         if (ret_val) {
 332                 dev_err(&pdev->dev,
 333                         "snd_soc_register_card failed %d\n", ret_val);
 334                 return ret_val;
 335         }
 336         platform_set_drvdata(pdev, &snd_soc_card_cht);
 337         return ret_val;
 338 }
 339
 340 static struct platform_driver snd_cht_mc_driver = {
 341         .driver = {
 342                 .name = "cht-bsw-max98090",
 343         },
 344         .probe = snd_cht_mc_probe,
 345 };
 346
 347 module_platform_driver(snd_cht_mc_driver)
 348
 349 MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver");
 350 MODULE_AUTHOR("Fang, Yang A <yang.a.fang@intel.com>");
 351 MODULE_LICENSE("GPL v2");
 352 MODULE_ALIAS("platform:cht-bsw-max98090");