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 const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
  43         SND_SOC_DAPM_HP("Headphone", NULL),
  44         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  45         SND_SOC_DAPM_MIC("Int Mic", NULL),
  46         SND_SOC_DAPM_SPK("Ext Spk", NULL),
  47 };
  48
  49 static const struct snd_soc_dapm_route cht_audio_map[] = {
  50         {"IN34", NULL, "Headset Mic"},
  51         {"Headset Mic", NULL, "MICBIAS"},
  52         {"DMICL", NULL, "Int Mic"},
  53         {"Headphone", NULL, "HPL"},
  54         {"Headphone", NULL, "HPR"},
  55         {"Ext Spk", NULL, "SPKL"},
  56         {"Ext Spk", NULL, "SPKR"},
  57         {"HiFi Playback", NULL, "ssp2 Tx"},
  58         {"ssp2 Tx", NULL, "codec_out0"},
  59         {"ssp2 Tx", NULL, "codec_out1"},
  60         {"codec_in0", NULL, "ssp2 Rx" },
  61         {"codec_in1", NULL, "ssp2 Rx" },
  62         {"ssp2 Rx", NULL, "HiFi Capture"},
  63 };
  64
  65 static const struct snd_kcontrol_new cht_mc_controls[] = {
  66         SOC_DAPM_PIN_SWITCH("Headphone"),
  67         SOC_DAPM_PIN_SWITCH("Headset Mic"),
  68         SOC_DAPM_PIN_SWITCH("Int Mic"),
  69         SOC_DAPM_PIN_SWITCH("Ext Spk"),
  70 };
  71
  72 static int cht_aif1_hw_params(struct snd_pcm_substream *substream,
  73                              struct snd_pcm_hw_params *params)
  74 {
  75         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  76         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  77         int ret;
  78
  79         ret = snd_soc_dai_set_sysclk(codec_dai, M98090_REG_SYSTEM_CLOCK,
  80                                      CHT_PLAT_CLK_3_HZ, SND_SOC_CLOCK_IN);
  81         if (ret < 0) {
  82                 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
  83                 return ret;
  84         }
  85
  86         return 0;
  87 }
  88
  89 static int cht_ti_jack_event(struct notifier_block *nb,
  90                 unsigned long event, void *data)
  91 {
  92         struct snd_soc_jack *jack = (struct snd_soc_jack *)data;
  93         struct snd_soc_dapm_context *dapm = &jack->card->dapm;
  94
  95         if (event & SND_JACK_MICROPHONE) {
  96                 snd_soc_dapm_force_enable_pin(dapm, "SHDN");
  97                 snd_soc_dapm_force_enable_pin(dapm, "MICBIAS");
  98                 snd_soc_dapm_sync(dapm);
  99         } else {
 100                 snd_soc_dapm_disable_pin(dapm, "MICBIAS");
 101                 snd_soc_dapm_disable_pin(dapm, "SHDN");
 102                 snd_soc_dapm_sync(dapm);
 103         }
 104
 105         return 0;
 106 }
 107
 108 static struct notifier_block cht_jack_nb = {
 109         .notifier_call = cht_ti_jack_event,
 110 };
 111
 112 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
 113 {
 114         int ret;
 115         int jack_type;
 116         struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
 117         struct snd_soc_jack *jack = &ctx->jack;
 118
 119         if (ctx->ts3a227e_present) {
 120                 /*
 121                  * The jack has already been created in the
 122                  * cht_max98090_headset_init() function.
 123                  */
 124                 snd_soc_jack_notifier_register(jack, &cht_jack_nb);
 125                 return 0;
 126         }
 127
 128         jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE;
 129
 130         ret = snd_soc_card_jack_new(runtime->card, "Headset Jack",
 131                                         jack_type, jack, NULL, 0);
 132         if (ret) {
 133                 dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret);
 134                 return ret;
 135         }
 136
 137         if (ctx->ts3a227e_present)
 138                 snd_soc_jack_notifier_register(jack, &cht_jack_nb);
 139
 140         return ret;
 141 }
 142
 143 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
 144                             struct snd_pcm_hw_params *params)
 145 {
 146         struct snd_interval *rate = hw_param_interval(params,
 147                         SNDRV_PCM_HW_PARAM_RATE);
 148         struct snd_interval *channels = hw_param_interval(params,
 149                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
 150         int ret = 0;
 151         unsigned int fmt = 0;
 152
 153         ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
 154         if (ret < 0) {
 155                 dev_err(rtd->dev, "can't set cpu_dai slot fmt: %d\n", ret);
 156                 return ret;
 157         }
 158
 159         fmt = SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF
 160                                 | SND_SOC_DAIFMT_CBS_CFS;
 161
 162         ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt);
 163         if (ret < 0) {
 164                 dev_err(rtd->dev, "can't set cpu_dai set fmt: %d\n", ret);
 165                 return ret;
 166         }
 167
 168         /* The DSP will covert the FE rate to 48k, stereo, 24bits */
 169         rate->min = rate->max = 48000;
 170         channels->min = channels->max = 2;
 171
 172         /* set SSP2 to 24-bit */
 173         params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
 174         return 0;
 175 }
 176
 177 static int cht_aif1_startup(struct snd_pcm_substream *substream)
 178 {
 179         return snd_pcm_hw_constraint_single(substream->runtime,
 180                         SNDRV_PCM_HW_PARAM_RATE, 48000);
 181 }
 182
 183 static int cht_max98090_headset_init(struct snd_soc_component *component)
 184 {
 185         struct snd_soc_card *card = component->card;
 186         struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
 187         struct snd_soc_jack *jack = &ctx->jack;
 188         int jack_type;
 189         int ret;
 190
 191         /*
 192          * TI supports 4 butons headset detection
 193          * KEY_MEDIA
 194          * KEY_VOICECOMMAND
 195          * KEY_VOLUMEUP
 196          * KEY_VOLUMEDOWN
 197          */
 198         jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
 199                     SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 200                     SND_JACK_BTN_2 | SND_JACK_BTN_3;
 201
 202         ret = snd_soc_card_jack_new(card, "Headset Jack", jack_type,
 203                                     jack, NULL, 0);
 204         if (ret) {
 205                 dev_err(card->dev, "Headset Jack creation failed %d\n", ret);
 206                 return ret;
 207         }
 208
 209         return ts3a227e_enable_jack_detect(component, &ctx->jack);
 210 }
 211
 212 static const struct snd_soc_ops cht_aif1_ops = {
 213         .startup = cht_aif1_startup,
 214 };
 215
 216 static const struct snd_soc_ops cht_be_ssp2_ops = {
 217         .hw_params = cht_aif1_hw_params,
 218 };
 219
 220 static struct snd_soc_aux_dev cht_max98090_headset_dev = {
 221         .name = "Headset Chip",
 222         .init = cht_max98090_headset_init,
 223         .codec_name = "i2c-104C227E:00",
 224 };
 225
 226 static struct snd_soc_dai_link cht_dailink[] = {
 227         [MERR_DPCM_AUDIO] = {
 228                 .name = "Audio Port",
 229                 .stream_name = "Audio",
 230                 .cpu_dai_name = "media-cpu-dai",
 231                 .codec_dai_name = "snd-soc-dummy-dai",
 232                 .codec_name = "snd-soc-dummy",
 233                 .platform_name = "sst-mfld-platform",
 234                 .nonatomic = true,
 235                 .dynamic = 1,
 236                 .dpcm_playback = 1,
 237                 .dpcm_capture = 1,
 238                 .ops = &cht_aif1_ops,
 239         },
 240         [MERR_DPCM_DEEP_BUFFER] = {
 241                 .name = "Deep-Buffer Audio Port",
 242                 .stream_name = "Deep-Buffer Audio",
 243                 .cpu_dai_name = "deepbuffer-cpu-dai",
 244                 .codec_dai_name = "snd-soc-dummy-dai",
 245                 .codec_name = "snd-soc-dummy",
 246                 .platform_name = "sst-mfld-platform",
 247                 .nonatomic = true,
 248                 .dynamic = 1,
 249                 .dpcm_playback = 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                 .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         .owner = THIS_MODULE,
 283         .dai_link = cht_dailink,
 284         .num_links = ARRAY_SIZE(cht_dailink),
 285         .aux_dev = &cht_max98090_headset_dev,
 286         .num_aux_devs = 1,
 287         .dapm_widgets = cht_dapm_widgets,
 288         .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
 289         .dapm_routes = cht_audio_map,
 290         .num_dapm_routes = ARRAY_SIZE(cht_audio_map),
 291         .controls = cht_mc_controls,
 292         .num_controls = ARRAY_SIZE(cht_mc_controls),
 293 };
 294
 295 static int snd_cht_mc_probe(struct platform_device *pdev)
 296 {
 297         int ret_val = 0;
 298         struct cht_mc_private *drv;
 299
 300         drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC);
 301         if (!drv)
 302                 return -ENOMEM;
 303
 304         drv->ts3a227e_present = acpi_dev_found("104C227E");
 305         if (!drv->ts3a227e_present) {
 306                 /* no need probe TI jack detection chip */
 307                 snd_soc_card_cht.aux_dev = NULL;
 308                 snd_soc_card_cht.num_aux_devs = 0;
 309         }
 310
 311         /* register the soc card */
 312         snd_soc_card_cht.dev = &pdev->dev;
 313         snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
 314         ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
 315         if (ret_val) {
 316                 dev_err(&pdev->dev,
 317                         "snd_soc_register_card failed %d\n", ret_val);
 318                 return ret_val;
 319         }
 320         platform_set_drvdata(pdev, &snd_soc_card_cht);
 321         return ret_val;
 322 }
 323
 324 static struct platform_driver snd_cht_mc_driver = {
 325         .driver = {
 326                 .name = "cht-bsw-max98090",
 327         },
 328         .probe = snd_cht_mc_probe,
 329 };
 330
 331 module_platform_driver(snd_cht_mc_driver)
 332
 333 MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver");
 334 MODULE_AUTHOR("Fang, Yang A <yang.a.fang@intel.com>");
 335 MODULE_LICENSE("GPL v2");
 336 MODULE_ALIAS("platform:cht-bsw-max98090");