sound/soc/intel/boards/bdw-rt5677.c

   1 /*
   2  * ASoC machine driver for Intel Broadwell platforms with RT5677 codec
   3  *
   4  * Copyright (c) 2014, The Chromium OS Authors.  All rights reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms and conditions of the GNU General Public License,
   8  * version 2, as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #include <linux/module.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/gpio/consumer.h>
  22 #include <linux/delay.h>
  23 #include <sound/core.h>
  24 #include <sound/pcm.h>
  25 #include <sound/soc.h>
  26 #include <sound/pcm_params.h>
  27 #include <sound/jack.h>
  28
  29 #include "../common/sst-dsp.h"
  30 #include "../haswell/sst-haswell-ipc.h"
  31
  32 #include "../../codecs/rt5677.h"
  33
  34 struct bdw_rt5677_priv {
  35         struct gpio_desc *gpio_hp_en;
  36         struct snd_soc_codec *codec;
  37 };
  38
  39 static int bdw_rt5677_event_hp(struct snd_soc_dapm_widget *w,
  40                         struct snd_kcontrol *k, int event)
  41 {
  42         struct snd_soc_dapm_context *dapm = w->dapm;
  43         struct snd_soc_card *card = dapm->card;
  44         struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card);
  45
  46         if (SND_SOC_DAPM_EVENT_ON(event))
  47                 msleep(70);
  48
  49         gpiod_set_value_cansleep(bdw_rt5677->gpio_hp_en,
  50                 SND_SOC_DAPM_EVENT_ON(event));
  51
  52         return 0;
  53 }
  54
  55 static const struct snd_soc_dapm_widget bdw_rt5677_widgets[] = {
  56         SND_SOC_DAPM_HP("Headphone", bdw_rt5677_event_hp),
  57         SND_SOC_DAPM_SPK("Speaker", NULL),
  58         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  59         SND_SOC_DAPM_MIC("Local DMICs", NULL),
  60         SND_SOC_DAPM_MIC("Remote DMICs", NULL),
  61 };
  62
  63 static const struct snd_soc_dapm_route bdw_rt5677_map[] = {
  64         /* Speakers */
  65         {"Speaker", NULL, "PDM1L"},
  66         {"Speaker", NULL, "PDM1R"},
  67
  68         /* Headset jack connectors */
  69         {"Headphone", NULL, "LOUT1"},
  70         {"Headphone", NULL, "LOUT2"},
  71         {"IN1P", NULL, "Headset Mic"},
  72         {"IN1N", NULL, "Headset Mic"},
  73
  74         /* Digital MICs
  75          * Local DMICs: the two DMICs on the mainboard
  76          * Remote DMICs: the two DMICs on the camera module
  77          */
  78         {"DMIC L1", NULL, "Remote DMICs"},
  79         {"DMIC R1", NULL, "Remote DMICs"},
  80         {"DMIC L2", NULL, "Local DMICs"},
  81         {"DMIC R2", NULL, "Local DMICs"},
  82
  83         /* CODEC BE connections */
  84         {"SSP0 CODEC IN", NULL, "AIF1 Capture"},
  85         {"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
  86 };
  87
  88 static const struct snd_kcontrol_new bdw_rt5677_controls[] = {
  89         SOC_DAPM_PIN_SWITCH("Speaker"),
  90         SOC_DAPM_PIN_SWITCH("Headphone"),
  91         SOC_DAPM_PIN_SWITCH("Headset Mic"),
  92         SOC_DAPM_PIN_SWITCH("Local DMICs"),
  93         SOC_DAPM_PIN_SWITCH("Remote DMICs"),
  94 };
  95
  96
  97 static struct snd_soc_jack headphone_jack;
  98 static struct snd_soc_jack mic_jack;
  99
 100 static struct snd_soc_jack_pin headphone_jack_pin = {
 101         .pin    = "Headphone",
 102         .mask   = SND_JACK_HEADPHONE,
 103 };
 104
 105 static struct snd_soc_jack_pin mic_jack_pin = {
 106         .pin    = "Headset Mic",
 107         .mask   = SND_JACK_MICROPHONE,
 108 };
 109
 110 static struct snd_soc_jack_gpio headphone_jack_gpio = {
 111         .name                   = "plug-det",
 112         .report                 = SND_JACK_HEADPHONE,
 113         .debounce_time          = 200,
 114 };
 115
 116 static struct snd_soc_jack_gpio mic_jack_gpio = {
 117         .name                   = "mic-present",
 118         .report                 = SND_JACK_MICROPHONE,
 119         .debounce_time          = 200,
 120         .invert                 = 1,
 121 };
 122
 123 static int broadwell_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
 124                         struct snd_pcm_hw_params *params)
 125 {
 126         struct snd_interval *rate = hw_param_interval(params,
 127                         SNDRV_PCM_HW_PARAM_RATE);
 128         struct snd_interval *channels = hw_param_interval(params,
 129                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
 130
 131         /* The ADSP will covert the FE rate to 48k, stereo */
 132         rate->min = rate->max = 48000;
 133         channels->min = channels->max = 2;
 134
 135         /* set SSP0 to 16 bit */
 136         snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT -
 137                                     SNDRV_PCM_HW_PARAM_FIRST_MASK],
 138                                     SNDRV_PCM_FORMAT_S16_LE);
 139         return 0;
 140 }
 141
 142 static int bdw_rt5677_hw_params(struct snd_pcm_substream *substream,
 143         struct snd_pcm_hw_params *params)
 144 {
 145         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 146         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 147         int ret;
 148
 149         ret = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_MCLK, 24576000,
 150                 SND_SOC_CLOCK_IN);
 151         if (ret < 0) {
 152                 dev_err(rtd->dev, "can't set codec sysclk configuration\n");
 153                 return ret;
 154         }
 155
 156         return ret;
 157 }
 158
 159 static const struct snd_soc_ops bdw_rt5677_ops = {
 160         .hw_params = bdw_rt5677_hw_params,
 161 };
 162
 163 static int bdw_rt5677_rtd_init(struct snd_soc_pcm_runtime *rtd)
 164 {
 165         struct sst_pdata *pdata = dev_get_platdata(rtd->platform->dev);
 166         struct sst_hsw *broadwell = pdata->dsp;
 167         int ret;
 168
 169         /* Set ADSP SSP port settings */
 170         ret = sst_hsw_device_set_config(broadwell, SST_HSW_DEVICE_SSP_0,
 171                 SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
 172                 SST_HSW_DEVICE_CLOCK_MASTER, 9);
 173         if (ret < 0) {
 174                 dev_err(rtd->dev, "error: failed to set device config\n");
 175                 return ret;
 176         }
 177
 178         return 0;
 179 }
 180
 181 static int bdw_rt5677_init(struct snd_soc_pcm_runtime *rtd)
 182 {
 183         struct bdw_rt5677_priv *bdw_rt5677 =
 184                         snd_soc_card_get_drvdata(rtd->card);
 185         struct snd_soc_codec *codec = rtd->codec;
 186         struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
 187
 188         /* Enable codec ASRC function for Stereo DAC/Stereo1 ADC/DMIC/I2S1.
 189          * The ASRC clock source is clk_i2s1_asrc.
 190          */
 191         rt5677_sel_asrc_clk_src(codec, RT5677_DA_STEREO_FILTER |
 192                         RT5677_AD_STEREO1_FILTER | RT5677_I2S1_SOURCE,
 193                         RT5677_CLK_SEL_I2S1_ASRC);
 194
 195         /* Request rt5677 GPIO for headphone amp control */
 196         bdw_rt5677->gpio_hp_en = devm_gpiod_get(codec->dev, "headphone-enable",
 197                                                 GPIOD_OUT_LOW);
 198         if (IS_ERR(bdw_rt5677->gpio_hp_en)) {
 199                 dev_err(codec->dev, "Can't find HP_AMP_SHDN_L gpio\n");
 200                 return PTR_ERR(bdw_rt5677->gpio_hp_en);
 201         }
 202
 203         /* Create and initialize headphone jack */
 204         if (!snd_soc_card_jack_new(rtd->card, "Headphone Jack",
 205                         SND_JACK_HEADPHONE, &headphone_jack,
 206                         &headphone_jack_pin, 1)) {
 207                 headphone_jack_gpio.gpiod_dev = codec->dev;
 208                 if (snd_soc_jack_add_gpios(&headphone_jack, 1,
 209                                 &headphone_jack_gpio))
 210                         dev_err(codec->dev, "Can't add headphone jack gpio\n");
 211         } else {
 212                 dev_err(codec->dev, "Can't create headphone jack\n");
 213         }
 214
 215         /* Create and initialize mic jack */
 216         if (!snd_soc_card_jack_new(rtd->card, "Mic Jack",
 217                         SND_JACK_MICROPHONE, &mic_jack,
 218                         &mic_jack_pin, 1)) {
 219                 mic_jack_gpio.gpiod_dev = codec->dev;
 220                 if (snd_soc_jack_add_gpios(&mic_jack, 1, &mic_jack_gpio))
 221                         dev_err(codec->dev, "Can't add mic jack gpio\n");
 222         } else {
 223                 dev_err(codec->dev, "Can't create mic jack\n");
 224         }
 225         bdw_rt5677->codec = codec;
 226
 227         snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
 228         return 0;
 229 }
 230
 231 /* broadwell digital audio interface glue - connects codec <--> CPU */
 232 static struct snd_soc_dai_link bdw_rt5677_dais[] = {
 233         /* Front End DAI links */
 234         {
 235                 .name = "System PCM",
 236                 .stream_name = "System Playback/Capture",
 237                 .cpu_dai_name = "System Pin",
 238                 .platform_name = "haswell-pcm-audio",
 239                 .dynamic = 1,
 240                 .codec_name = "snd-soc-dummy",
 241                 .codec_dai_name = "snd-soc-dummy-dai",
 242                 .init = bdw_rt5677_rtd_init,
 243                 .trigger = {
 244                         SND_SOC_DPCM_TRIGGER_POST,
 245                         SND_SOC_DPCM_TRIGGER_POST
 246                 },
 247                 .dpcm_capture = 1,
 248                 .dpcm_playback = 1,
 249         },
 250
 251         /* Back End DAI links */
 252         {
 253                 /* SSP0 - Codec */
 254                 .name = "Codec",
 255                 .id = 0,
 256                 .cpu_dai_name = "snd-soc-dummy-dai",
 257                 .platform_name = "snd-soc-dummy",
 258                 .no_pcm = 1,
 259                 .codec_name = "i2c-RT5677CE:00",
 260                 .codec_dai_name = "rt5677-aif1",
 261                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 262                         SND_SOC_DAIFMT_CBS_CFS,
 263                 .ignore_suspend = 1,
 264                 .ignore_pmdown_time = 1,
 265                 .be_hw_params_fixup = broadwell_ssp0_fixup,
 266                 .ops = &bdw_rt5677_ops,
 267                 .dpcm_playback = 1,
 268                 .dpcm_capture = 1,
 269                 .init = bdw_rt5677_init,
 270         },
 271 };
 272
 273 static int bdw_rt5677_suspend_pre(struct snd_soc_card *card)
 274 {
 275         struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card);
 276         struct snd_soc_dapm_context *dapm;
 277
 278         if (bdw_rt5677->codec) {
 279                 dapm = snd_soc_codec_get_dapm(bdw_rt5677->codec);
 280                 snd_soc_dapm_disable_pin(dapm, "MICBIAS1");
 281         }
 282         return 0;
 283 }
 284
 285 static int bdw_rt5677_resume_post(struct snd_soc_card *card)
 286 {
 287         struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card);
 288         struct snd_soc_dapm_context *dapm;
 289
 290         if (bdw_rt5677->codec) {
 291                 dapm = snd_soc_codec_get_dapm(bdw_rt5677->codec);
 292                 snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
 293         }
 294         return 0;
 295 }
 296
 297 /* ASoC machine driver for Broadwell DSP + RT5677 */
 298 static struct snd_soc_card bdw_rt5677_card = {
 299         .name = "bdw-rt5677",
 300         .owner = THIS_MODULE,
 301         .dai_link = bdw_rt5677_dais,
 302         .num_links = ARRAY_SIZE(bdw_rt5677_dais),
 303         .dapm_widgets = bdw_rt5677_widgets,
 304         .num_dapm_widgets = ARRAY_SIZE(bdw_rt5677_widgets),
 305         .dapm_routes = bdw_rt5677_map,
 306         .num_dapm_routes = ARRAY_SIZE(bdw_rt5677_map),
 307         .controls = bdw_rt5677_controls,
 308         .num_controls = ARRAY_SIZE(bdw_rt5677_controls),
 309         .fully_routed = true,
 310         .suspend_pre = bdw_rt5677_suspend_pre,
 311         .resume_post = bdw_rt5677_resume_post,
 312 };
 313
 314 static int bdw_rt5677_probe(struct platform_device *pdev)
 315 {
 316         struct bdw_rt5677_priv *bdw_rt5677;
 317
 318         bdw_rt5677_card.dev = &pdev->dev;
 319
 320         /* Allocate driver private struct */
 321         bdw_rt5677 = devm_kzalloc(&pdev->dev, sizeof(struct bdw_rt5677_priv),
 322                 GFP_KERNEL);
 323         if (!bdw_rt5677) {
 324                 dev_err(&pdev->dev, "Can't allocate bdw_rt5677\n");
 325                 return -ENOMEM;
 326         }
 327
 328         snd_soc_card_set_drvdata(&bdw_rt5677_card, bdw_rt5677);
 329
 330         return devm_snd_soc_register_card(&pdev->dev, &bdw_rt5677_card);
 331 }
 332
 333 static struct platform_driver bdw_rt5677_audio = {
 334         .probe = bdw_rt5677_probe,
 335         .driver = {
 336                 .name = "bdw-rt5677",
 337         },
 338 };
 339
 340 module_platform_driver(bdw_rt5677_audio)
 341
 342 /* Module information */
 343 MODULE_AUTHOR("Ben Zhang");
 344 MODULE_DESCRIPTION("Intel Broadwell RT5677 machine driver");
 345 MODULE_LICENSE("GPL v2");
 346 MODULE_ALIAS("platform:bdw-rt5677");