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