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