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