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_component *component;
  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         params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
 158         return 0;
 159 }
 160
 161 static int bdw_rt5677_hw_params(struct snd_pcm_substream *substream,
 162         struct snd_pcm_hw_params *params)
 163 {
 164         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 165         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 166         int ret;
 167
 168         ret = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_MCLK, 24576000,
 169                 SND_SOC_CLOCK_IN);
 170         if (ret < 0) {
 171                 dev_err(rtd->dev, "can't set codec sysclk configuration\n");
 172                 return ret;
 173         }
 174
 175         return ret;
 176 }
 177
 178 static const struct snd_soc_ops bdw_rt5677_ops = {
 179         .hw_params = bdw_rt5677_hw_params,
 180 };
 181
 182 static int bdw_rt5677_rtd_init(struct snd_soc_pcm_runtime *rtd)
 183 {
 184         struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
 185         struct sst_pdata *pdata = dev_get_platdata(component->dev);
 186         struct sst_hsw *broadwell = pdata->dsp;
 187         int ret;
 188
 189         /* Set ADSP SSP port settings */
 190         ret = sst_hsw_device_set_config(broadwell, SST_HSW_DEVICE_SSP_0,
 191                 SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
 192                 SST_HSW_DEVICE_CLOCK_MASTER, 9);
 193         if (ret < 0) {
 194                 dev_err(rtd->dev, "error: failed to set device config\n");
 195                 return ret;
 196         }
 197
 198         return 0;
 199 }
 200
 201 static int bdw_rt5677_init(struct snd_soc_pcm_runtime *rtd)
 202 {
 203         struct bdw_rt5677_priv *bdw_rt5677 =
 204                         snd_soc_card_get_drvdata(rtd->card);
 205         struct snd_soc_component *component = rtd->codec_dai->component;
 206         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 207         int ret;
 208
 209         ret = devm_acpi_dev_add_driver_gpios(component->dev, bdw_rt5677_gpios);
 210         if (ret)
 211                 dev_warn(component->dev, "Failed to add driver gpios\n");
 212
 213         /* Enable codec ASRC function for Stereo DAC/Stereo1 ADC/DMIC/I2S1.
 214          * The ASRC clock source is clk_i2s1_asrc.
 215          */
 216         rt5677_sel_asrc_clk_src(component, RT5677_DA_STEREO_FILTER |
 217                         RT5677_AD_STEREO1_FILTER | RT5677_I2S1_SOURCE,
 218                         RT5677_CLK_SEL_I2S1_ASRC);
 219
 220         /* Request rt5677 GPIO for headphone amp control */
 221         bdw_rt5677->gpio_hp_en = devm_gpiod_get(component->dev, "headphone-enable",
 222                                                 GPIOD_OUT_LOW);
 223         if (IS_ERR(bdw_rt5677->gpio_hp_en)) {
 224                 dev_err(component->dev, "Can't find HP_AMP_SHDN_L gpio\n");
 225                 return PTR_ERR(bdw_rt5677->gpio_hp_en);
 226         }
 227
 228         /* Create and initialize headphone jack */
 229         if (!snd_soc_card_jack_new(rtd->card, "Headphone Jack",
 230                         SND_JACK_HEADPHONE, &headphone_jack,
 231                         &headphone_jack_pin, 1)) {
 232                 headphone_jack_gpio.gpiod_dev = component->dev;
 233                 if (snd_soc_jack_add_gpios(&headphone_jack, 1,
 234                                 &headphone_jack_gpio))
 235                         dev_err(component->dev, "Can't add headphone jack gpio\n");
 236         } else {
 237                 dev_err(component->dev, "Can't create headphone jack\n");
 238         }
 239
 240         /* Create and initialize mic jack */
 241         if (!snd_soc_card_jack_new(rtd->card, "Mic Jack",
 242                         SND_JACK_MICROPHONE, &mic_jack,
 243                         &mic_jack_pin, 1)) {
 244                 mic_jack_gpio.gpiod_dev = component->dev;
 245                 if (snd_soc_jack_add_gpios(&mic_jack, 1, &mic_jack_gpio))
 246                         dev_err(component->dev, "Can't add mic jack gpio\n");
 247         } else {
 248                 dev_err(component->dev, "Can't create mic jack\n");
 249         }
 250         bdw_rt5677->component = component;
 251
 252         snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
 253         return 0;
 254 }
 255
 256 /* broadwell digital audio interface glue - connects codec <--> CPU */
 257 static struct snd_soc_dai_link bdw_rt5677_dais[] = {
 258         /* Front End DAI links */
 259         {
 260                 .name = "System PCM",
 261                 .stream_name = "System Playback/Capture",
 262                 .cpu_dai_name = "System Pin",
 263                 .platform_name = "haswell-pcm-audio",
 264                 .dynamic = 1,
 265                 .codec_name = "snd-soc-dummy",
 266                 .codec_dai_name = "snd-soc-dummy-dai",
 267                 .init = bdw_rt5677_rtd_init,
 268                 .trigger = {
 269                         SND_SOC_DPCM_TRIGGER_POST,
 270                         SND_SOC_DPCM_TRIGGER_POST
 271                 },
 272                 .dpcm_capture = 1,
 273                 .dpcm_playback = 1,
 274         },
 275
 276         /* Back End DAI links */
 277         {
 278                 /* SSP0 - Codec */
 279                 .name = "Codec",
 280                 .id = 0,
 281                 .cpu_dai_name = "snd-soc-dummy-dai",
 282                 .platform_name = "snd-soc-dummy",
 283                 .no_pcm = 1,
 284                 .codec_name = "i2c-RT5677CE:00",
 285                 .codec_dai_name = "rt5677-aif1",
 286                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 287                         SND_SOC_DAIFMT_CBS_CFS,
 288                 .ignore_suspend = 1,
 289                 .ignore_pmdown_time = 1,
 290                 .be_hw_params_fixup = broadwell_ssp0_fixup,
 291                 .ops = &bdw_rt5677_ops,
 292                 .dpcm_playback = 1,
 293                 .dpcm_capture = 1,
 294                 .init = bdw_rt5677_init,
 295         },
 296 };
 297
 298 static int bdw_rt5677_suspend_pre(struct snd_soc_card *card)
 299 {
 300         struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card);
 301         struct snd_soc_dapm_context *dapm;
 302
 303         if (bdw_rt5677->component) {
 304                 dapm = snd_soc_component_get_dapm(bdw_rt5677->component);
 305                 snd_soc_dapm_disable_pin(dapm, "MICBIAS1");
 306         }
 307         return 0;
 308 }
 309
 310 static int bdw_rt5677_resume_post(struct snd_soc_card *card)
 311 {
 312         struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card);
 313         struct snd_soc_dapm_context *dapm;
 314
 315         if (bdw_rt5677->component) {
 316                 dapm = snd_soc_component_get_dapm(bdw_rt5677->component);
 317                 snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
 318         }
 319         return 0;
 320 }
 321
 322 /* ASoC machine driver for Broadwell DSP + RT5677 */
 323 static struct snd_soc_card bdw_rt5677_card = {
 324         .name = "bdw-rt5677",
 325         .owner = THIS_MODULE,
 326         .dai_link = bdw_rt5677_dais,
 327         .num_links = ARRAY_SIZE(bdw_rt5677_dais),
 328         .dapm_widgets = bdw_rt5677_widgets,
 329         .num_dapm_widgets = ARRAY_SIZE(bdw_rt5677_widgets),
 330         .dapm_routes = bdw_rt5677_map,
 331         .num_dapm_routes = ARRAY_SIZE(bdw_rt5677_map),
 332         .controls = bdw_rt5677_controls,
 333         .num_controls = ARRAY_SIZE(bdw_rt5677_controls),
 334         .fully_routed = true,
 335         .suspend_pre = bdw_rt5677_suspend_pre,
 336         .resume_post = bdw_rt5677_resume_post,
 337 };
 338
 339 static int bdw_rt5677_probe(struct platform_device *pdev)
 340 {
 341         struct bdw_rt5677_priv *bdw_rt5677;
 342
 343         bdw_rt5677_card.dev = &pdev->dev;
 344
 345         /* Allocate driver private struct */
 346         bdw_rt5677 = devm_kzalloc(&pdev->dev, sizeof(struct bdw_rt5677_priv),
 347                 GFP_KERNEL);
 348         if (!bdw_rt5677) {
 349                 dev_err(&pdev->dev, "Can't allocate bdw_rt5677\n");
 350                 return -ENOMEM;
 351         }
 352
 353         snd_soc_card_set_drvdata(&bdw_rt5677_card, bdw_rt5677);
 354
 355         return devm_snd_soc_register_card(&pdev->dev, &bdw_rt5677_card);
 356 }
 357
 358 static struct platform_driver bdw_rt5677_audio = {
 359         .probe = bdw_rt5677_probe,
 360         .driver = {
 361                 .name = "bdw-rt5677",
 362         },
 363 };
 364
 365 module_platform_driver(bdw_rt5677_audio)
 366
 367 /* Module information */
 368 MODULE_AUTHOR("Ben Zhang");
 369 MODULE_DESCRIPTION("Intel Broadwell RT5677 machine driver");
 370 MODULE_LICENSE("GPL v2");
 371 MODULE_ALIAS("platform:bdw-rt5677");