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"); 390