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         struct snd_soc_pcm_runtime *rtd;
  45
  46         list_for_each_entry(rtd, &card->rtd_list, list) {
  47                 if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI,
  48                              strlen(CHT_CODEC_DAI)))
  49                         return rtd->codec_dai;
  50         }
  51         return NULL;
  52 }
  53
  54 static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
  55         SND_SOC_DAPM_HP("Headphone", NULL),
  56         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  57         SND_SOC_DAPM_MIC("Int Mic", NULL),
  58         SND_SOC_DAPM_SPK("Ext Spk", NULL),
  59 };
  60
  61 static const struct snd_soc_dapm_route cht_audio_map[] = {
  62         {"IN34", NULL, "Headset Mic"},
  63         {"Headset Mic", NULL, "MICBIAS"},
  64         {"DMICL", NULL, "Int Mic"},
  65         {"Headphone", NULL, "HPL"},
  66         {"Headphone", NULL, "HPR"},
  67         {"Ext Spk", NULL, "SPKL"},
  68         {"Ext Spk", NULL, "SPKR"},
  69         {"HiFi Playback", NULL, "ssp2 Tx"},
  70         {"ssp2 Tx", NULL, "codec_out0"},
  71         {"ssp2 Tx", NULL, "codec_out1"},
  72         {"codec_in0", NULL, "ssp2 Rx" },
  73         {"codec_in1", NULL, "ssp2 Rx" },
  74         {"ssp2 Rx", NULL, "HiFi Capture"},
  75 };
  76
  77 static const struct snd_kcontrol_new cht_mc_controls[] = {
  78         SOC_DAPM_PIN_SWITCH("Headphone"),
  79         SOC_DAPM_PIN_SWITCH("Headset Mic"),
  80         SOC_DAPM_PIN_SWITCH("Int Mic"),
  81         SOC_DAPM_PIN_SWITCH("Ext Spk"),
  82 };
  83
  84 static int cht_aif1_hw_params(struct snd_pcm_substream *substream,
  85                              struct snd_pcm_hw_params *params)
  86 {
  87         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  88         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  89         int ret;
  90
  91         ret = snd_soc_dai_set_sysclk(codec_dai, M98090_REG_SYSTEM_CLOCK,
  92                                      CHT_PLAT_CLK_3_HZ, SND_SOC_CLOCK_IN);
  93         if (ret < 0) {
  94                 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
  95                 return ret;
  96         }
  97
  98         return 0;
  99 }
 100
 101 static int cht_ti_jack_event(struct notifier_block *nb,
 102                 unsigned long event, void *data)
 103 {
 104         struct snd_soc_jack *jack = (struct snd_soc_jack *)data;
 105         struct snd_soc_dapm_context *dapm = &jack->card->dapm;
 106
 107         if (event & SND_JACK_MICROPHONE) {
 108                 snd_soc_dapm_force_enable_pin(dapm, "SHDN");
 109                 snd_soc_dapm_force_enable_pin(dapm, "MICBIAS");
 110                 snd_soc_dapm_sync(dapm);
 111         } else {
 112                 snd_soc_dapm_disable_pin(dapm, "MICBIAS");
 113                 snd_soc_dapm_disable_pin(dapm, "SHDN");
 114                 snd_soc_dapm_sync(dapm);
 115         }
 116
 117         return 0;
 118 }
 119
 120 static struct notifier_block cht_jack_nb = {
 121         .notifier_call = cht_ti_jack_event,
 122 };
 123
 124 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
 125 {
 126         int ret;
 127         int jack_type;
 128         struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
 129         struct snd_soc_jack *jack = &ctx->jack;
 130
 131         if (ctx->ts3a227e_present) {
 132                 /*
 133                  * The jack has already been created in the
 134                  * cht_max98090_headset_init() function.
 135                  */
 136                 snd_soc_jack_notifier_register(jack, &cht_jack_nb);
 137                 return 0;
 138         }
 139
 140         jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE;
 141
 142         ret = snd_soc_card_jack_new(runtime->card, "Headset Jack",
 143                                         jack_type, jack, NULL, 0);
 144         if (ret) {
 145                 dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret);
 146                 return ret;
 147         }
 148
 149         if (ctx->ts3a227e_present)
 150                 snd_soc_jack_notifier_register(jack, &cht_jack_nb);
 151
 152         return ret;
 153 }
 154
 155 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
 156                             struct snd_pcm_hw_params *params)
 157 {
 158         struct snd_interval *rate = hw_param_interval(params,
 159                         SNDRV_PCM_HW_PARAM_RATE);
 160         struct snd_interval *channels = hw_param_interval(params,
 161                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
 162         int ret = 0;
 163         unsigned int fmt = 0;
 164
 165         ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
 166         if (ret < 0) {
 167                 dev_err(rtd->dev, "can't set cpu_dai slot fmt: %d\n", ret);
 168                 return ret;
 169         }
 170
 171         fmt = SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF
 172                                 | SND_SOC_DAIFMT_CBS_CFS;
 173
 174         ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt);
 175         if (ret < 0) {
 176                 dev_err(rtd->dev, "can't set cpu_dai set fmt: %d\n", ret);
 177                 return ret;
 178         }
 179
 180         /* The DSP will covert the FE rate to 48k, stereo, 24bits */
 181         rate->min = rate->max = 48000;
 182         channels->min = channels->max = 2;
 183
 184         /* set SSP2 to 24-bit */
 185         params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
 186         return 0;
 187 }
 188
 189 static int cht_aif1_startup(struct snd_pcm_substream *substream)
 190 {
 191         return snd_pcm_hw_constraint_single(substream->runtime,
 192                         SNDRV_PCM_HW_PARAM_RATE, 48000);
 193 }
 194
 195 static int cht_max98090_headset_init(struct snd_soc_component *component)
 196 {
 197         struct snd_soc_card *card = component->card;
 198         struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
 199         struct snd_soc_jack *jack = &ctx->jack;
 200         int jack_type;
 201         int ret;
 202
 203         /*
 204          * TI supports 4 butons headset detection
 205          * KEY_MEDIA
 206          * KEY_VOICECOMMAND
 207          * KEY_VOLUMEUP
 208          * KEY_VOLUMEDOWN
 209          */
 210         jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
 211                     SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 212                     SND_JACK_BTN_2 | SND_JACK_BTN_3;
 213
 214         ret = snd_soc_card_jack_new(card, "Headset Jack", jack_type,
 215                                     jack, NULL, 0);
 216         if (ret) {
 217                 dev_err(card->dev, "Headset Jack creation failed %d\n", ret);
 218                 return ret;
 219         }
 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_DEEP_BUFFER] = {
 253                 .name = "Deep-Buffer Audio Port",
 254                 .stream_name = "Deep-Buffer Audio",
 255                 .cpu_dai_name = "deepbuffer-cpu-dai",
 256                 .codec_dai_name = "snd-soc-dummy-dai",
 257                 .codec_name = "snd-soc-dummy",
 258                 .platform_name = "sst-mfld-platform",
 259                 .nonatomic = true,
 260                 .dynamic = 1,
 261                 .dpcm_playback = 1,
 262                 .ops = &cht_aif1_ops,
 263         },
 264         [MERR_DPCM_COMPR] = {
 265                 .name = "Compressed Port",
 266                 .stream_name = "Compress",
 267                 .cpu_dai_name = "compress-cpu-dai",
 268                 .codec_dai_name = "snd-soc-dummy-dai",
 269                 .codec_name = "snd-soc-dummy",
 270                 .platform_name = "sst-mfld-platform",
 271         },
 272         /* back ends */
 273         {
 274                 .name = "SSP2-Codec",
 275                 .id = 1,
 276                 .cpu_dai_name = "ssp2-port",
 277                 .platform_name = "sst-mfld-platform",
 278                 .no_pcm = 1,
 279                 .codec_dai_name = "HiFi",
 280                 .codec_name = "i2c-193C9890:00",
 281                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 282                                         | SND_SOC_DAIFMT_CBS_CFS,
 283                 .init = cht_codec_init,
 284                 .be_hw_params_fixup = cht_codec_fixup,
 285                 .dpcm_playback = 1,
 286                 .dpcm_capture = 1,
 287                 .ops = &cht_be_ssp2_ops,
 288         },
 289 };
 290
 291 /* SoC card */
 292 static struct snd_soc_card snd_soc_card_cht = {
 293         .name = "chtmax98090",
 294         .owner = THIS_MODULE,
 295         .dai_link = cht_dailink,
 296         .num_links = ARRAY_SIZE(cht_dailink),
 297         .aux_dev = &cht_max98090_headset_dev,
 298         .num_aux_devs = 1,
 299         .dapm_widgets = cht_dapm_widgets,
 300         .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
 301         .dapm_routes = cht_audio_map,
 302         .num_dapm_routes = ARRAY_SIZE(cht_audio_map),
 303         .controls = cht_mc_controls,
 304         .num_controls = ARRAY_SIZE(cht_mc_controls),
 305 };
 306
 307 static int snd_cht_mc_probe(struct platform_device *pdev)
 308 {
 309         int ret_val = 0;
 310         struct cht_mc_private *drv;
 311
 312         drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC);
 313         if (!drv)
 314                 return -ENOMEM;
 315
 316         drv->ts3a227e_present = acpi_dev_found("104C227E");
 317         if (!drv->ts3a227e_present) {
 318                 /* no need probe TI jack detection chip */
 319                 snd_soc_card_cht.aux_dev = NULL;
 320                 snd_soc_card_cht.num_aux_devs = 0;
 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");