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 #include <sound/soc-acpi.h>
  30
  31 #include "../common/sst-dsp.h"
  32 #include "../haswell/sst-haswell-ipc.h"
  33
  34 #include "../../codecs/rt5677.h"
  35
  36 struct bdw_rt5677_priv {
  37         struct gpio_desc *gpio_hp_en;
  38         struct snd_soc_component *component;
  39 };
  40
  41 static int bdw_rt5677_event_hp(struct snd_soc_dapm_widget *w,
  42                         struct snd_kcontrol *k, int event)
  43 {
  44         struct snd_soc_dapm_context *dapm = w->dapm;
  45         struct snd_soc_card *card = dapm->card;
  46         struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card);
  47
  48         if (SND_SOC_DAPM_EVENT_ON(event))
  49                 msleep(70);
  50
  51         gpiod_set_value_cansleep(bdw_rt5677->gpio_hp_en,
  52                 SND_SOC_DAPM_EVENT_ON(event));
  53
  54         return 0;
  55 }
  56
  57 static const struct snd_soc_dapm_widget bdw_rt5677_widgets[] = {
  58         SND_SOC_DAPM_HP("Headphone", bdw_rt5677_event_hp),
  59         SND_SOC_DAPM_SPK("Speaker", NULL),
  60         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  61         SND_SOC_DAPM_MIC("Local DMICs", NULL),
  62         SND_SOC_DAPM_MIC("Remote DMICs", NULL),
  63 };
  64
  65 static const struct snd_soc_dapm_route bdw_rt5677_map[] = {
  66         /* Speakers */
  67         {"Speaker", NULL, "PDM1L"},
  68         {"Speaker", NULL, "PDM1R"},
  69
  70         /* Headset jack connectors */
  71         {"Headphone", NULL, "LOUT1"},
  72         {"Headphone", NULL, "LOUT2"},
  73         {"IN1P", NULL, "Headset Mic"},
  74         {"IN1N", NULL, "Headset Mic"},
  75
  76         /* Digital MICs
  77          * Local DMICs: the two DMICs on the mainboard
  78          * Remote DMICs: the two DMICs on the camera module
  79          */
  80         {"DMIC L1", NULL, "Remote DMICs"},
  81         {"DMIC R1", NULL, "Remote DMICs"},
  82         {"DMIC L2", NULL, "Local DMICs"},
  83         {"DMIC R2", NULL, "Local DMICs"},
  84
  85         /* CODEC BE connections */
  86         {"SSP0 CODEC IN", NULL, "AIF1 Capture"},
  87         {"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
  88 };
  89
  90 static const struct snd_kcontrol_new bdw_rt5677_controls[] = {
  91         SOC_DAPM_PIN_SWITCH("Speaker"),
  92         SOC_DAPM_PIN_SWITCH("Headphone"),
  93         SOC_DAPM_PIN_SWITCH("Headset Mic"),
  94         SOC_DAPM_PIN_SWITCH("Local DMICs"),
  95         SOC_DAPM_PIN_SWITCH("Remote DMICs"),
  96 };
  97
  98
  99 static struct snd_soc_jack headphone_jack;
 100 static struct snd_soc_jack mic_jack;
 101
 102 static struct snd_soc_jack_pin headphone_jack_pin = {
 103         .pin    = "Headphone",
 104         .mask   = SND_JACK_HEADPHONE,
 105 };
 106
 107 static struct snd_soc_jack_pin mic_jack_pin = {
 108         .pin    = "Headset Mic",
 109         .mask   = SND_JACK_MICROPHONE,
 110 };
 111
 112 static struct snd_soc_jack_gpio headphone_jack_gpio = {
 113         .name                   = "plug-det",
 114         .report                 = SND_JACK_HEADPHONE,
 115         .debounce_time          = 200,
 116 };
 117
 118 static struct snd_soc_jack_gpio mic_jack_gpio = {
 119         .name                   = "mic-present",
 120         .report                 = SND_JACK_MICROPHONE,
 121         .debounce_time          = 200,
 122         .invert                 = 1,
 123 };
 124
 125 /* GPIO indexes defined by ACPI */
 126 enum {
 127         RT5677_GPIO_PLUG_DET            = 0,
 128         RT5677_GPIO_MIC_PRESENT_L       = 1,
 129         RT5677_GPIO_HOTWORD_DET_L       = 2,
 130         RT5677_GPIO_DSP_INT             = 3,
 131         RT5677_GPIO_HP_AMP_SHDN_L       = 4,
 132 };
 133
 134 static const struct acpi_gpio_params plug_det_gpio = { RT5677_GPIO_PLUG_DET, 0, false };
 135 static const struct acpi_gpio_params mic_present_gpio = { RT5677_GPIO_MIC_PRESENT_L, 0, false };
 136 static const struct acpi_gpio_params headphone_enable_gpio = { RT5677_GPIO_HP_AMP_SHDN_L, 0, false };
 137
 138 static const struct acpi_gpio_mapping bdw_rt5677_gpios[] = {
 139         { "plug-det-gpios", &plug_det_gpio, 1 },
 140         { "mic-present-gpios", &mic_present_gpio, 1 },
 141         { "headphone-enable-gpios", &headphone_enable_gpio, 1 },
 142         { NULL },
 143 };
 144
 145 static int broadwell_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
 146                         struct snd_pcm_hw_params *params)
 147 {
 148         struct snd_interval *rate = hw_param_interval(params,
 149                         SNDRV_PCM_HW_PARAM_RATE);
 150         struct snd_interval *channels = hw_param_interval(params,
 151                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
 152
 153         /* The ADSP will covert the FE rate to 48k, stereo */
 154         rate->min = rate->max = 48000;
 155         channels->min = channels->max = 2;
 156
 157         /* set SSP0 to 16 bit */
 158         params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
 159         return 0;
 160 }
 161
 162 static int bdw_rt5677_hw_params(struct snd_pcm_substream *substream,
 163         struct snd_pcm_hw_params *params)
 164 {
 165         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 166         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 167         int ret;
 168
 169         ret = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_MCLK, 24576000,
 170                 SND_SOC_CLOCK_IN);
 171         if (ret < 0) {
 172                 dev_err(rtd->dev, "can't set codec sysclk configuration\n");
 173                 return ret;
 174         }
 175
 176         return ret;
 177 }
 178
 179 static const struct snd_soc_ops bdw_rt5677_ops = {
 180         .hw_params = bdw_rt5677_hw_params,
 181 };
 182
 183 #if !IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL)
 184 static int bdw_rt5677_rtd_init(struct snd_soc_pcm_runtime *rtd)
 185 {
 186         struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
 187         struct sst_pdata *pdata = dev_get_platdata(component->dev);
 188         struct sst_hsw *broadwell = pdata->dsp;
 189         int ret;
 190
 191         /* Set ADSP SSP port settings */
 192         ret = sst_hsw_device_set_config(broadwell, SST_HSW_DEVICE_SSP_0,
 193                 SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
 194                 SST_HSW_DEVICE_CLOCK_MASTER, 9);
 195         if (ret < 0) {
 196                 dev_err(rtd->dev, "error: failed to set device config\n");
 197                 return ret;
 198         }
 199
 200         return 0;
 201 }
 202 #endif
 203
 204 static int bdw_rt5677_init(struct snd_soc_pcm_runtime *rtd)
 205 {
 206         struct bdw_rt5677_priv *bdw_rt5677 =
 207                         snd_soc_card_get_drvdata(rtd->card);
 208         struct snd_soc_component *component = rtd->codec_dai->component;
 209         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 210         int ret;
 211
 212         ret = devm_acpi_dev_add_driver_gpios(component->dev, bdw_rt5677_gpios);
 213         if (ret)
 214                 dev_warn(component->dev, "Failed to add driver gpios\n");
 215
 216         /* Enable codec ASRC function for Stereo DAC/Stereo1 ADC/DMIC/I2S1.
 217          * The ASRC clock source is clk_i2s1_asrc.
 218          */
 219         rt5677_sel_asrc_clk_src(component, RT5677_DA_STEREO_FILTER |
 220                         RT5677_AD_STEREO1_FILTER | RT5677_I2S1_SOURCE,
 221                         RT5677_CLK_SEL_I2S1_ASRC);
 222
 223         /* Request rt5677 GPIO for headphone amp control */
 224         bdw_rt5677->gpio_hp_en = devm_gpiod_get(component->dev, "headphone-enable",
 225                                                 GPIOD_OUT_LOW);
 226         if (IS_ERR(bdw_rt5677->gpio_hp_en)) {
 227                 dev_err(component->dev, "Can't find HP_AMP_SHDN_L gpio\n");
 228                 return PTR_ERR(bdw_rt5677->gpio_hp_en);
 229         }
 230
 231         /* Create and initialize headphone jack */
 232         if (!snd_soc_card_jack_new(rtd->card, "Headphone Jack",
 233                         SND_JACK_HEADPHONE, &headphone_jack,
 234                         &headphone_jack_pin, 1)) {
 235                 headphone_jack_gpio.gpiod_dev = component->dev;
 236                 if (snd_soc_jack_add_gpios(&headphone_jack, 1,
 237                                 &headphone_jack_gpio))
 238                         dev_err(component->dev, "Can't add headphone jack gpio\n");
 239         } else {
 240                 dev_err(component->dev, "Can't create headphone jack\n");
 241         }
 242
 243         /* Create and initialize mic jack */
 244         if (!snd_soc_card_jack_new(rtd->card, "Mic Jack",
 245                         SND_JACK_MICROPHONE, &mic_jack,
 246                         &mic_jack_pin, 1)) {
 247                 mic_jack_gpio.gpiod_dev = component->dev;
 248                 if (snd_soc_jack_add_gpios(&mic_jack, 1, &mic_jack_gpio))
 249                         dev_err(component->dev, "Can't add mic jack gpio\n");
 250         } else {
 251                 dev_err(component->dev, "Can't create mic jack\n");
 252         }
 253         bdw_rt5677->component = component;
 254
 255         snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
 256         return 0;
 257 }
 258
 259 /* broadwell digital audio interface glue - connects codec <--> CPU */
 260 static struct snd_soc_dai_link bdw_rt5677_dais[] = {
 261         /* Front End DAI links */
 262         {
 263                 .name = "System PCM",
 264                 .stream_name = "System Playback/Capture",
 265                 .cpu_dai_name = "System Pin",
 266                 .platform_name = "haswell-pcm-audio",
 267                 .dynamic = 1,
 268                 .codec_name = "snd-soc-dummy",
 269                 .codec_dai_name = "snd-soc-dummy-dai",
 270 #if !IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL)
 271                 .init = bdw_rt5677_rtd_init,
 272 #endif
 273                 .trigger = {
 274                         SND_SOC_DPCM_TRIGGER_POST,
 275                         SND_SOC_DPCM_TRIGGER_POST
 276                 },
 277                 .dpcm_capture = 1,
 278                 .dpcm_playback = 1,
 279         },
 280
 281         /* Back End DAI links */
 282         {
 283                 /* SSP0 - Codec */
 284                 .name = "Codec",
 285                 .id = 0,
 286                 .cpu_dai_name = "snd-soc-dummy-dai",
 287                 .platform_name = "snd-soc-dummy",
 288                 .no_pcm = 1,
 289                 .codec_name = "i2c-RT5677CE:00",
 290                 .codec_dai_name = "rt5677-aif1",
 291                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 292                         SND_SOC_DAIFMT_CBS_CFS,
 293                 .ignore_suspend = 1,
 294                 .ignore_pmdown_time = 1,
 295                 .be_hw_params_fixup = broadwell_ssp0_fixup,
 296                 .ops = &bdw_rt5677_ops,
 297                 .dpcm_playback = 1,
 298                 .dpcm_capture = 1,
 299                 .init = bdw_rt5677_init,
 300         },
 301 };
 302
 303 static int bdw_rt5677_suspend_pre(struct snd_soc_card *card)
 304 {
 305         struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card);
 306         struct snd_soc_dapm_context *dapm;
 307
 308         if (bdw_rt5677->component) {
 309                 dapm = snd_soc_component_get_dapm(bdw_rt5677->component);
 310                 snd_soc_dapm_disable_pin(dapm, "MICBIAS1");
 311         }
 312         return 0;
 313 }
 314
 315 static int bdw_rt5677_resume_post(struct snd_soc_card *card)
 316 {
 317         struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card);
 318         struct snd_soc_dapm_context *dapm;
 319
 320         if (bdw_rt5677->component) {
 321                 dapm = snd_soc_component_get_dapm(bdw_rt5677->component);
 322                 snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
 323         }
 324         return 0;
 325 }
 326
 327 /* ASoC machine driver for Broadwell DSP + RT5677 */
 328 static struct snd_soc_card bdw_rt5677_card = {
 329         .name = "bdw-rt5677",
 330         .owner = THIS_MODULE,
 331         .dai_link = bdw_rt5677_dais,
 332         .num_links = ARRAY_SIZE(bdw_rt5677_dais),
 333         .dapm_widgets = bdw_rt5677_widgets,
 334         .num_dapm_widgets = ARRAY_SIZE(bdw_rt5677_widgets),
 335         .dapm_routes = bdw_rt5677_map,
 336         .num_dapm_routes = ARRAY_SIZE(bdw_rt5677_map),
 337         .controls = bdw_rt5677_controls,
 338         .num_controls = ARRAY_SIZE(bdw_rt5677_controls),
 339         .fully_routed = true,
 340         .suspend_pre = bdw_rt5677_suspend_pre,
 341         .resume_post = bdw_rt5677_resume_post,
 342 };
 343
 344 static int bdw_rt5677_probe(struct platform_device *pdev)
 345 {
 346         struct bdw_rt5677_priv *bdw_rt5677;
 347         struct snd_soc_acpi_mach *mach;
 348         const char *platform_name = NULL;
 349         int ret;
 350
 351         bdw_rt5677_card.dev = &pdev->dev;
 352
 353         /* Allocate driver private struct */
 354         bdw_rt5677 = devm_kzalloc(&pdev->dev, sizeof(struct bdw_rt5677_priv),
 355                 GFP_KERNEL);
 356         if (!bdw_rt5677) {
 357                 dev_err(&pdev->dev, "Can't allocate bdw_rt5677\n");
 358                 return -ENOMEM;
 359         }
 360
 361         /* override plaform name, if required */
 362         mach = (&pdev->dev)->platform_data;
 363         if (mach) /* extra check since legacy does not pass parameters */
 364                 platform_name = mach->mach_params.platform;
 365
 366         ret = snd_soc_fixup_dai_links_platform_name(&bdw_rt5677_card,
 367                                                     platform_name);
 368         if (ret)
 369                 return ret;
 370
 371         snd_soc_card_set_drvdata(&bdw_rt5677_card, bdw_rt5677);
 372
 373         return devm_snd_soc_register_card(&pdev->dev, &bdw_rt5677_card);
 374 }
 375
 376 static struct platform_driver bdw_rt5677_audio = {
 377         .probe = bdw_rt5677_probe,
 378         .driver = {
 379                 .name = "bdw-rt5677",
 380         },
 381 };
 382
 383 module_platform_driver(bdw_rt5677_audio)
 384
 385 /* Module information */
 386 MODULE_AUTHOR("Ben Zhang");
 387 MODULE_DESCRIPTION("Intel Broadwell RT5677 machine driver");
 388 MODULE_LICENSE("GPL v2");
 389 MODULE_ALIAS("platform:bdw-rt5677");