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/acpi.h>
  20 #include <linux/module.h>
  21 #include <linux/platform_device.h>
  22 #include <linux/gpio/consumer.h>
  23 #include <linux/delay.h>
  24 #include <sound/core.h>
  25 #include <sound/pcm.h>
  26 #include <sound/soc.h>
  27 #include <sound/pcm_params.h>
  28 #include <sound/jack.h>
  29
  30 #include "../common/sst-dsp.h"
  31 #include "../haswell/sst-haswell-ipc.h"
  32
  33 #include "../../codecs/rt5677.h"
  34
  35 struct bdw_rt5677_priv {
  36         struct gpio_desc *gpio_hp_en;
  37         struct snd_soc_codec *codec;
  38 };
  39
  40 static int bdw_rt5677_event_hp(struct snd_soc_dapm_widget *w,
  41                         struct snd_kcontrol *k, int event)
  42 {
  43         struct snd_soc_dapm_context *dapm = w->dapm;
  44         struct snd_soc_card *card = dapm->card;
  45         struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card);
  46
  47         if (SND_SOC_DAPM_EVENT_ON(event))
  48                 msleep(70);
  49
  50         gpiod_set_value_cansleep(bdw_rt5677->gpio_hp_en,
  51                 SND_SOC_DAPM_EVENT_ON(event));
  52
  53         return 0;
  54 }
  55
  56 static const struct snd_soc_dapm_widget bdw_rt5677_widgets[] = {
  57         SND_SOC_DAPM_HP("Headphone", bdw_rt5677_event_hp),
  58         SND_SOC_DAPM_SPK("Speaker", NULL),
  59         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  60         SND_SOC_DAPM_MIC("Local DMICs", NULL),
  61         SND_SOC_DAPM_MIC("Remote DMICs", NULL),
  62 };
  63
  64 static const struct snd_soc_dapm_route bdw_rt5677_map[] = {
  65         /* Speakers */
  66         {"Speaker", NULL, "PDM1L"},
  67         {"Speaker", NULL, "PDM1R"},
  68
  69         /* Headset jack connectors */
  70         {"Headphone", NULL, "LOUT1"},
  71         {"Headphone", NULL, "LOUT2"},
  72         {"IN1P", NULL, "Headset Mic"},
  73         {"IN1N", NULL, "Headset Mic"},
  74
  75         /* Digital MICs
  76          * Local DMICs: the two DMICs on the mainboard
  77          * Remote DMICs: the two DMICs on the camera module
  78          */
  79         {"DMIC L1", NULL, "Remote DMICs"},
  80         {"DMIC R1", NULL, "Remote DMICs"},
  81         {"DMIC L2", NULL, "Local DMICs"},
  82         {"DMIC R2", NULL, "Local DMICs"},
  83
  84         /* CODEC BE connections */
  85         {"SSP0 CODEC IN", NULL, "AIF1 Capture"},
  86         {"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
  87 };
  88
  89 static const struct snd_kcontrol_new bdw_rt5677_controls[] = {
  90         SOC_DAPM_PIN_SWITCH("Speaker"),
  91         SOC_DAPM_PIN_SWITCH("Headphone"),
  92         SOC_DAPM_PIN_SWITCH("Headset Mic"),
  93         SOC_DAPM_PIN_SWITCH("Local DMICs"),
  94         SOC_DAPM_PIN_SWITCH("Remote DMICs"),
  95 };
  96
  97
  98 static struct snd_soc_jack headphone_jack;
  99 static struct snd_soc_jack mic_jack;
 100
 101 static struct snd_soc_jack_pin headphone_jack_pin = {
 102         .pin    = "Headphone",
 103         .mask   = SND_JACK_HEADPHONE,
 104 };
 105
 106 static struct snd_soc_jack_pin mic_jack_pin = {
 107         .pin    = "Headset Mic",
 108         .mask   = SND_JACK_MICROPHONE,
 109 };
 110
 111 static struct snd_soc_jack_gpio headphone_jack_gpio = {
 112         .name                   = "plug-det",
 113         .report                 = SND_JACK_HEADPHONE,
 114         .debounce_time          = 200,
 115 };
 116
 117 static struct snd_soc_jack_gpio mic_jack_gpio = {
 118         .name                   = "mic-present",
 119         .report                 = SND_JACK_MICROPHONE,
 120         .debounce_time          = 200,
 121         .invert                 = 1,
 122 };
 123
 124 /* GPIO indexes defined by ACPI */
 125 enum {
 126         RT5677_GPIO_PLUG_DET            = 0,
 127         RT5677_GPIO_MIC_PRESENT_L       = 1,
 128         RT5677_GPIO_HOTWORD_DET_L       = 2,
 129         RT5677_GPIO_DSP_INT             = 3,
 130         RT5677_GPIO_HP_AMP_SHDN_L       = 4,
 131 };
 132
 133 static const struct acpi_gpio_params plug_det_gpio = { RT5677_GPIO_PLUG_DET, 0, false };
 134 static const struct acpi_gpio_params mic_present_gpio = { RT5677_GPIO_MIC_PRESENT_L, 0, false };
 135 static const struct acpi_gpio_params headphone_enable_gpio = { RT5677_GPIO_HP_AMP_SHDN_L, 0, false };
 136
 137 static const struct acpi_gpio_mapping bdw_rt5677_gpios[] = {
 138         { "plug-det-gpios", &plug_det_gpio, 1 },
 139         { "mic-present-gpios", &mic_present_gpio, 1 },
 140         { "headphone-enable-gpios", &headphone_enable_gpio, 1 },
 141         { NULL },
 142 };
 143
 144 static int broadwell_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
 145                         struct snd_pcm_hw_params *params)
 146 {
 147         struct snd_interval *rate = hw_param_interval(params,
 148                         SNDRV_PCM_HW_PARAM_RATE);
 149         struct snd_interval *channels = hw_param_interval(params,
 150                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
 151
 152         /* The ADSP will covert the FE rate to 48k, stereo */
 153         rate->min = rate->max = 48000;
 154         channels->min = channels->max = 2;
 155
 156         /* set SSP0 to 16 bit */
 157         snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT -
 158                                     SNDRV_PCM_HW_PARAM_FIRST_MASK],
 159                                     SNDRV_PCM_FORMAT_S16_LE);
 160         return 0;
 161 }
 162
 163 static int bdw_rt5677_hw_params(struct snd_pcm_substream *substream,
 164         struct snd_pcm_hw_params *params)
 165 {
 166         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 167         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 168         int ret;
 169
 170         ret = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_MCLK, 24576000,
 171                 SND_SOC_CLOCK_IN);
 172         if (ret < 0) {
 173                 dev_err(rtd->dev, "can't set codec sysclk configuration\n");
 174                 return ret;
 175         }
 176
 177         return ret;
 178 }
 179
 180 static const struct snd_soc_ops bdw_rt5677_ops = {
 181         .hw_params = bdw_rt5677_hw_params,
 182 };
 183
 184 static int bdw_rt5677_rtd_init(struct snd_soc_pcm_runtime *rtd)
 185 {
 186         struct sst_pdata *pdata = dev_get_platdata(rtd->platform->dev);
 187         struct sst_hsw *broadwell = pdata->dsp;
 188         int ret;
 189
 190         /* Set ADSP SSP port settings */
 191         ret = sst_hsw_device_set_config(broadwell, SST_HSW_DEVICE_SSP_0,
 192                 SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
 193                 SST_HSW_DEVICE_CLOCK_MASTER, 9);
 194         if (ret < 0) {
 195                 dev_err(rtd->dev, "error: failed to set device config\n");
 196                 return ret;
 197         }
 198
 199         return 0;
 200 }
 201
 202 static int bdw_rt5677_init(struct snd_soc_pcm_runtime *rtd)
 203 {
 204         struct bdw_rt5677_priv *bdw_rt5677 =
 205                         snd_soc_card_get_drvdata(rtd->card);
 206         struct snd_soc_codec *codec = rtd->codec;
 207         struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
 208         int ret;
 209
 210         ret = devm_acpi_dev_add_driver_gpios(codec->dev, bdw_rt5677_gpios);
 211         if (ret)
 212                 dev_warn(codec->dev, "Failed to add driver gpios\n");
 213
 214         /* Enable codec ASRC function for Stereo DAC/Stereo1 ADC/DMIC/I2S1.
 215          * The ASRC clock source is clk_i2s1_asrc.
 216          */
 217         rt5677_sel_asrc_clk_src(codec, RT5677_DA_STEREO_FILTER |
 218                         RT5677_AD_STEREO1_FILTER | RT5677_I2S1_SOURCE,
 219                         RT5677_CLK_SEL_I2S1_ASRC);
 220
 221         /* Request rt5677 GPIO for headphone amp control */
 222         bdw_rt5677->gpio_hp_en = devm_gpiod_get(codec->dev, "headphone-enable",
 223                                                 GPIOD_OUT_LOW);
 224         if (IS_ERR(bdw_rt5677->gpio_hp_en)) {
 225                 dev_err(codec->dev, "Can't find HP_AMP_SHDN_L gpio\n");
 226                 return PTR_ERR(bdw_rt5677->gpio_hp_en);
 227         }
 228
 229         /* Create and initialize headphone jack */
 230         if (!snd_soc_card_jack_new(rtd->card, "Headphone Jack",
 231                         SND_JACK_HEADPHONE, &headphone_jack,
 232                         &headphone_jack_pin, 1)) {
 233                 headphone_jack_gpio.gpiod_dev = codec->dev;
 234                 if (snd_soc_jack_add_gpios(&headphone_jack, 1,
 235                                 &headphone_jack_gpio))
 236                         dev_err(codec->dev, "Can't add headphone jack gpio\n");
 237         } else {
 238                 dev_err(codec->dev, "Can't create headphone jack\n");
 239         }
 240
 241         /* Create and initialize mic jack */
 242         if (!snd_soc_card_jack_new(rtd->card, "Mic Jack",
 243                         SND_JACK_MICROPHONE, &mic_jack,
 244                         &mic_jack_pin, 1)) {
 245                 mic_jack_gpio.gpiod_dev = codec->dev;
 246                 if (snd_soc_jack_add_gpios(&mic_jack, 1, &mic_jack_gpio))
 247                         dev_err(codec->dev, "Can't add mic jack gpio\n");
 248         } else {
 249                 dev_err(codec->dev, "Can't create mic jack\n");
 250         }
 251         bdw_rt5677->codec = codec;
 252
 253         snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
 254         return 0;
 255 }
 256
 257 /* broadwell digital audio interface glue - connects codec <--> CPU */
 258 static struct snd_soc_dai_link bdw_rt5677_dais[] = {
 259         /* Front End DAI links */
 260         {
 261                 .name = "System PCM",
 262                 .stream_name = "System Playback/Capture",
 263                 .cpu_dai_name = "System Pin",
 264                 .platform_name = "haswell-pcm-audio",
 265                 .dynamic = 1,
 266                 .codec_name = "snd-soc-dummy",
 267                 .codec_dai_name = "snd-soc-dummy-dai",
 268                 .init = bdw_rt5677_rtd_init,
 269                 .trigger = {
 270                         SND_SOC_DPCM_TRIGGER_POST,
 271                         SND_SOC_DPCM_TRIGGER_POST
 272                 },
 273                 .dpcm_capture = 1,
 274                 .dpcm_playback = 1,
 275         },
 276
 277         /* Back End DAI links */
 278         {
 279                 /* SSP0 - Codec */
 280                 .name = "Codec",
 281                 .id = 0,
 282                 .cpu_dai_name = "snd-soc-dummy-dai",
 283                 .platform_name = "snd-soc-dummy",
 284                 .no_pcm = 1,
 285                 .codec_name = "i2c-RT5677CE:00",
 286                 .codec_dai_name = "rt5677-aif1",
 287                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 288                         SND_SOC_DAIFMT_CBS_CFS,
 289                 .ignore_suspend = 1,
 290                 .ignore_pmdown_time = 1,
 291                 .be_hw_params_fixup = broadwell_ssp0_fixup,
 292                 .ops = &bdw_rt5677_ops,
 293                 .dpcm_playback = 1,
 294                 .dpcm_capture = 1,
 295                 .init = bdw_rt5677_init,
 296         },
 297 };
 298
 299 static int bdw_rt5677_suspend_pre(struct snd_soc_card *card)
 300 {
 301         struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card);
 302         struct snd_soc_dapm_context *dapm;
 303
 304         if (bdw_rt5677->codec) {
 305                 dapm = snd_soc_codec_get_dapm(bdw_rt5677->codec);
 306                 snd_soc_dapm_disable_pin(dapm, "MICBIAS1");
 307         }
 308         return 0;
 309 }
 310
 311 static int bdw_rt5677_resume_post(struct snd_soc_card *card)
 312 {
 313         struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card);
 314         struct snd_soc_dapm_context *dapm;
 315
 316         if (bdw_rt5677->codec) {
 317                 dapm = snd_soc_codec_get_dapm(bdw_rt5677->codec);
 318                 snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
 319         }
 320         return 0;
 321 }
 322
 323 /* ASoC machine driver for Broadwell DSP + RT5677 */
 324 static struct snd_soc_card bdw_rt5677_card = {
 325         .name = "bdw-rt5677",
 326         .owner = THIS_MODULE,
 327         .dai_link = bdw_rt5677_dais,
 328         .num_links = ARRAY_SIZE(bdw_rt5677_dais),
 329         .dapm_widgets = bdw_rt5677_widgets,
 330         .num_dapm_widgets = ARRAY_SIZE(bdw_rt5677_widgets),
 331         .dapm_routes = bdw_rt5677_map,
 332         .num_dapm_routes = ARRAY_SIZE(bdw_rt5677_map),
 333         .controls = bdw_rt5677_controls,
 334         .num_controls = ARRAY_SIZE(bdw_rt5677_controls),
 335         .fully_routed = true,
 336         .suspend_pre = bdw_rt5677_suspend_pre,
 337         .resume_post = bdw_rt5677_resume_post,
 338 };
 339
 340 static int bdw_rt5677_probe(struct platform_device *pdev)
 341 {
 342         struct bdw_rt5677_priv *bdw_rt5677;
 343
 344         bdw_rt5677_card.dev = &pdev->dev;
 345
 346         /* Allocate driver private struct */
 347         bdw_rt5677 = devm_kzalloc(&pdev->dev, sizeof(struct bdw_rt5677_priv),
 348                 GFP_KERNEL);
 349         if (!bdw_rt5677) {
 350                 dev_err(&pdev->dev, "Can't allocate bdw_rt5677\n");
 351                 return -ENOMEM;
 352         }
 353
 354         snd_soc_card_set_drvdata(&bdw_rt5677_card, bdw_rt5677);
 355
 356         return devm_snd_soc_register_card(&pdev->dev, &bdw_rt5677_card);
 357 }
 358
 359 static struct platform_driver bdw_rt5677_audio = {
 360         .probe = bdw_rt5677_probe,
 361         .driver = {
 362                 .name = "bdw-rt5677",
 363         },
 364 };
 365
 366 module_platform_driver(bdw_rt5677_audio)
 367
 368 /* Module information */
 369 MODULE_AUTHOR("Ben Zhang");
 370 MODULE_DESCRIPTION("Intel Broadwell RT5677 machine driver");
 371 MODULE_LICENSE("GPL v2");
 372 MODULE_ALIAS("platform:bdw-rt5677");