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         {"AIF1 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, "AIF1 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
 108         struct snd_soc_jack *jack = (struct snd_soc_jack *)data;
 109         struct snd_soc_dai *codec_dai = jack->card->rtd->codec_dai;
 110         struct snd_soc_codec *codec = codec_dai->codec;
 111
 112         if (event & SND_JACK_MICROPHONE) {
 113
 114                 snd_soc_dapm_force_enable_pin(&codec->dapm, "SHDN");
 115                 snd_soc_dapm_force_enable_pin(&codec->dapm, "MICBIAS");
 116                 snd_soc_dapm_sync(&codec->dapm);
 117         } else {
 118
 119                 snd_soc_dapm_disable_pin(&codec->dapm, "MICBIAS");
 120                 snd_soc_dapm_disable_pin(&codec->dapm, "SHDN");
 121                 snd_soc_dapm_sync(&codec->dapm);
 122         }
 123
 124         return 0;
 125 }
 126
 127 static struct notifier_block cht_jack_nb = {
 128         .notifier_call = cht_ti_jack_event,
 129 };
 130
 131 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
 132 {
 133         int ret;
 134         int jack_type;
 135         struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
 136         struct snd_soc_jack *jack = &ctx->jack;
 137
 138         /**
 139         * TI supports 4 butons headset detection
 140         * KEY_MEDIA
 141         * KEY_VOICECOMMAND
 142         * KEY_VOLUMEUP
 143         * KEY_VOLUMEDOWN
 144         */
 145         if (ctx->ts3a227e_present)
 146                 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
 147                                         SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 148                                         SND_JACK_BTN_2 | SND_JACK_BTN_3;
 149         else
 150                 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE;
 151
 152         ret = snd_soc_card_jack_new(runtime->card, "Headset Jack",
 153                                         jack_type, jack, NULL, 0);
 154
 155         if (ret) {
 156                 dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret);
 157                 return ret;
 158         }
 159
 160         if (ctx->ts3a227e_present)
 161                 snd_soc_jack_notifier_register(jack, &cht_jack_nb);
 162
 163         return ret;
 164 }
 165
 166 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
 167                             struct snd_pcm_hw_params *params)
 168 {
 169         struct snd_interval *rate = hw_param_interval(params,
 170                         SNDRV_PCM_HW_PARAM_RATE);
 171         struct snd_interval *channels = hw_param_interval(params,
 172                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
 173         int ret = 0;
 174         unsigned int fmt = 0;
 175
 176         ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
 177         if (ret < 0) {
 178                 dev_err(rtd->dev, "can't set cpu_dai slot fmt: %d\n", ret);
 179                 return ret;
 180         }
 181
 182         fmt = SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF
 183                                 | SND_SOC_DAIFMT_CBS_CFS;
 184
 185         ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt);
 186         if (ret < 0) {
 187                 dev_err(rtd->dev, "can't set cpu_dai set fmt: %d\n", ret);
 188                 return ret;
 189         }
 190
 191         /* The DSP will covert the FE rate to 48k, stereo, 24bits */
 192         rate->min = rate->max = 48000;
 193         channels->min = channels->max = 2;
 194
 195         /* set SSP2 to 24-bit */
 196         params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
 197         return 0;
 198 }
 199
 200 static unsigned int rates_48000[] = {
 201         48000,
 202 };
 203
 204 static struct snd_pcm_hw_constraint_list constraints_48000 = {
 205         .count = ARRAY_SIZE(rates_48000),
 206         .list  = rates_48000,
 207 };
 208
 209 static int cht_aif1_startup(struct snd_pcm_substream *substream)
 210 {
 211         return snd_pcm_hw_constraint_list(substream->runtime, 0,
 212                         SNDRV_PCM_HW_PARAM_RATE,
 213                         &constraints_48000);
 214 }
 215
 216 static int cht_max98090_headset_init(struct snd_soc_component *component)
 217 {
 218         struct snd_soc_card *card = component->card;
 219         struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
 220
 221         return ts3a227e_enable_jack_detect(component, &ctx->jack);
 222 }
 223
 224 static struct snd_soc_ops cht_aif1_ops = {
 225         .startup = cht_aif1_startup,
 226 };
 227
 228 static struct snd_soc_ops cht_be_ssp2_ops = {
 229         .hw_params = cht_aif1_hw_params,
 230 };
 231
 232 static struct snd_soc_aux_dev cht_max98090_headset_dev = {
 233         .name = "Headset Chip",
 234         .init = cht_max98090_headset_init,
 235         .codec_name = "i2c-104C227E:00",
 236 };
 237
 238 static struct snd_soc_dai_link cht_dailink[] = {
 239         [MERR_DPCM_AUDIO] = {
 240                 .name = "Audio Port",
 241                 .stream_name = "Audio",
 242                 .cpu_dai_name = "media-cpu-dai",
 243                 .codec_dai_name = "snd-soc-dummy-dai",
 244                 .codec_name = "snd-soc-dummy",
 245                 .platform_name = "sst-mfld-platform",
 246                 .nonatomic = true,
 247                 .dynamic = 1,
 248                 .dpcm_playback = 1,
 249                 .dpcm_capture = 1,
 250                 .ops = &cht_aif1_ops,
 251         },
 252         [MERR_DPCM_COMPR] = {
 253                 .name = "Compressed Port",
 254                 .stream_name = "Compress",
 255                 .cpu_dai_name = "compress-cpu-dai",
 256                 .codec_dai_name = "snd-soc-dummy-dai",
 257                 .codec_name = "snd-soc-dummy",
 258                 .platform_name = "sst-mfld-platform",
 259         },
 260         /* back ends */
 261         {
 262                 .name = "SSP2-Codec",
 263                 .be_id = 1,
 264                 .cpu_dai_name = "ssp2-port",
 265                 .platform_name = "sst-mfld-platform",
 266                 .no_pcm = 1,
 267                 .codec_dai_name = "HiFi",
 268                 .codec_name = "i2c-193C9890:00",
 269                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 270                                         | SND_SOC_DAIFMT_CBS_CFS,
 271                 .init = cht_codec_init,
 272                 .be_hw_params_fixup = cht_codec_fixup,
 273                 .dpcm_playback = 1,
 274                 .dpcm_capture = 1,
 275                 .ops = &cht_be_ssp2_ops,
 276         },
 277 };
 278
 279 /* SoC card */
 280 static struct snd_soc_card snd_soc_card_cht = {
 281         .name = "chtmax98090",
 282         .dai_link = cht_dailink,
 283         .num_links = ARRAY_SIZE(cht_dailink),
 284         .aux_dev = &cht_max98090_headset_dev,
 285         .num_aux_devs = 1,
 286         .dapm_widgets = cht_dapm_widgets,
 287         .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
 288         .dapm_routes = cht_audio_map,
 289         .num_dapm_routes = ARRAY_SIZE(cht_audio_map),
 290         .controls = cht_mc_controls,
 291         .num_controls = ARRAY_SIZE(cht_mc_controls),
 292 };
 293
 294 static acpi_status snd_acpi_codec_match(acpi_handle handle, u32 level,
 295                                                 void *context, void **ret)
 296 {
 297         *(bool *)context = true;
 298         return AE_OK;
 299 }
 300
 301 static int snd_cht_mc_probe(struct platform_device *pdev)
 302 {
 303         int ret_val = 0;
 304         bool found = false;
 305         struct cht_mc_private *drv;
 306
 307         drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC);
 308         if (!drv)
 309                 return -ENOMEM;
 310
 311         if (ACPI_SUCCESS(acpi_get_devices(
 312                                         "104C227E",
 313                                         snd_acpi_codec_match,
 314                                         &found, NULL)) && found) {
 315                 drv->ts3a227e_present = true;
 316         } else {
 317                 /* no need probe TI jack detection chip */
 318                 snd_soc_card_cht.aux_dev = NULL;
 319                 snd_soc_card_cht.num_aux_devs = 0;
 320                 drv->ts3a227e_present = false;
 321         }
 322
 323         /* register the soc card */
 324         snd_soc_card_cht.dev = &pdev->dev;
 325         snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
 326         ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
 327         if (ret_val) {
 328                 dev_err(&pdev->dev,
 329                         "snd_soc_register_card failed %d\n", ret_val);
 330                 return ret_val;
 331         }
 332         platform_set_drvdata(pdev, &snd_soc_card_cht);
 333         return ret_val;
 334 }
 335
 336 static struct platform_driver snd_cht_mc_driver = {
 337         .driver = {
 338                 .name = "cht-bsw-max98090",
 339         },
 340         .probe = snd_cht_mc_probe,
 341 };
 342
 343 module_platform_driver(snd_cht_mc_driver)
 344
 345 MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver");
 346 MODULE_AUTHOR("Fang, Yang A <yang.a.fang@intel.com>");
 347 MODULE_LICENSE("GPL v2");
 348 MODULE_ALIAS("platform:cht-bsw-max98090");