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 snd_mask_set(¶ms->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 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 } 202 203 static int bdw_rt5677_init(struct snd_soc_pcm_runtime *rtd) 204 { 205 struct bdw_rt5677_priv *bdw_rt5677 = 206 snd_soc_card_get_drvdata(rtd->card); 207 struct snd_soc_component *component = rtd->codec_dai->component; 208 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 209 int ret; 210 211 ret = devm_acpi_dev_add_driver_gpios(component->dev, bdw_rt5677_gpios); 212 if (ret) 213 dev_warn(component->dev, "Failed to add driver gpios\n"); 214 215 /* Enable codec ASRC function for Stereo DAC/Stereo1 ADC/DMIC/I2S1. 216 * The ASRC clock source is clk_i2s1_asrc. 217 */ 218 rt5677_sel_asrc_clk_src(component, RT5677_DA_STEREO_FILTER | 219 RT5677_AD_STEREO1_FILTER | RT5677_I2S1_SOURCE, 220 RT5677_CLK_SEL_I2S1_ASRC); 221 222 /* Request rt5677 GPIO for headphone amp control */ 223 bdw_rt5677->gpio_hp_en = devm_gpiod_get(component->dev, "headphone-enable", 224 GPIOD_OUT_LOW); 225 if (IS_ERR(bdw_rt5677->gpio_hp_en)) { 226 dev_err(component->dev, "Can't find HP_AMP_SHDN_L gpio\n"); 227 return PTR_ERR(bdw_rt5677->gpio_hp_en); 228 } 229 230 /* Create and initialize headphone jack */ 231 if (!snd_soc_card_jack_new(rtd->card, "Headphone Jack", 232 SND_JACK_HEADPHONE, &headphone_jack, 233 &headphone_jack_pin, 1)) { 234 headphone_jack_gpio.gpiod_dev = component->dev; 235 if (snd_soc_jack_add_gpios(&headphone_jack, 1, 236 &headphone_jack_gpio)) 237 dev_err(component->dev, "Can't add headphone jack gpio\n"); 238 } else { 239 dev_err(component->dev, "Can't create headphone jack\n"); 240 } 241 242 /* Create and initialize mic jack */ 243 if (!snd_soc_card_jack_new(rtd->card, "Mic Jack", 244 SND_JACK_MICROPHONE, &mic_jack, 245 &mic_jack_pin, 1)) { 246 mic_jack_gpio.gpiod_dev = component->dev; 247 if (snd_soc_jack_add_gpios(&mic_jack, 1, &mic_jack_gpio)) 248 dev_err(component->dev, "Can't add mic jack gpio\n"); 249 } else { 250 dev_err(component->dev, "Can't create mic jack\n"); 251 } 252 bdw_rt5677->component = component; 253 254 snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1"); 255 return 0; 256 } 257 258 /* broadwell digital audio interface glue - connects codec <--> CPU */ 259 static struct snd_soc_dai_link bdw_rt5677_dais[] = { 260 /* Front End DAI links */ 261 { 262 .name = "System PCM", 263 .stream_name = "System Playback/Capture", 264 .cpu_dai_name = "System Pin", 265 .platform_name = "haswell-pcm-audio", 266 .dynamic = 1, 267 .codec_name = "snd-soc-dummy", 268 .codec_dai_name = "snd-soc-dummy-dai", 269 .init = bdw_rt5677_rtd_init, 270 .trigger = { 271 SND_SOC_DPCM_TRIGGER_POST, 272 SND_SOC_DPCM_TRIGGER_POST 273 }, 274 .dpcm_capture = 1, 275 .dpcm_playback = 1, 276 }, 277 278 /* Back End DAI links */ 279 { 280 /* SSP0 - Codec */ 281 .name = "Codec", 282 .id = 0, 283 .cpu_dai_name = "snd-soc-dummy-dai", 284 .platform_name = "snd-soc-dummy", 285 .no_pcm = 1, 286 .codec_name = "i2c-RT5677CE:00", 287 .codec_dai_name = "rt5677-aif1", 288 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 289 SND_SOC_DAIFMT_CBS_CFS, 290 .ignore_suspend = 1, 291 .ignore_pmdown_time = 1, 292 .be_hw_params_fixup = broadwell_ssp0_fixup, 293 .ops = &bdw_rt5677_ops, 294 .dpcm_playback = 1, 295 .dpcm_capture = 1, 296 .init = bdw_rt5677_init, 297 }, 298 }; 299 300 static int bdw_rt5677_suspend_pre(struct snd_soc_card *card) 301 { 302 struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card); 303 struct snd_soc_dapm_context *dapm; 304 305 if (bdw_rt5677->component) { 306 dapm = snd_soc_component_get_dapm(bdw_rt5677->component); 307 snd_soc_dapm_disable_pin(dapm, "MICBIAS1"); 308 } 309 return 0; 310 } 311 312 static int bdw_rt5677_resume_post(struct snd_soc_card *card) 313 { 314 struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card); 315 struct snd_soc_dapm_context *dapm; 316 317 if (bdw_rt5677->component) { 318 dapm = snd_soc_component_get_dapm(bdw_rt5677->component); 319 snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1"); 320 } 321 return 0; 322 } 323 324 /* ASoC machine driver for Broadwell DSP + RT5677 */ 325 static struct snd_soc_card bdw_rt5677_card = { 326 .name = "bdw-rt5677", 327 .owner = THIS_MODULE, 328 .dai_link = bdw_rt5677_dais, 329 .num_links = ARRAY_SIZE(bdw_rt5677_dais), 330 .dapm_widgets = bdw_rt5677_widgets, 331 .num_dapm_widgets = ARRAY_SIZE(bdw_rt5677_widgets), 332 .dapm_routes = bdw_rt5677_map, 333 .num_dapm_routes = ARRAY_SIZE(bdw_rt5677_map), 334 .controls = bdw_rt5677_controls, 335 .num_controls = ARRAY_SIZE(bdw_rt5677_controls), 336 .fully_routed = true, 337 .suspend_pre = bdw_rt5677_suspend_pre, 338 .resume_post = bdw_rt5677_resume_post, 339 }; 340 341 static int bdw_rt5677_probe(struct platform_device *pdev) 342 { 343 struct bdw_rt5677_priv *bdw_rt5677; 344 345 bdw_rt5677_card.dev = &pdev->dev; 346 347 /* Allocate driver private struct */ 348 bdw_rt5677 = devm_kzalloc(&pdev->dev, sizeof(struct bdw_rt5677_priv), 349 GFP_KERNEL); 350 if (!bdw_rt5677) { 351 dev_err(&pdev->dev, "Can't allocate bdw_rt5677\n"); 352 return -ENOMEM; 353 } 354 355 snd_soc_card_set_drvdata(&bdw_rt5677_card, bdw_rt5677); 356 357 return devm_snd_soc_register_card(&pdev->dev, &bdw_rt5677_card); 358 } 359 360 static struct platform_driver bdw_rt5677_audio = { 361 .probe = bdw_rt5677_probe, 362 .driver = { 363 .name = "bdw-rt5677", 364 }, 365 }; 366 367 module_platform_driver(bdw_rt5677_audio) 368 369 /* Module information */ 370 MODULE_AUTHOR("Ben Zhang"); 371 MODULE_DESCRIPTION("Intel Broadwell RT5677 machine driver"); 372 MODULE_LICENSE("GPL v2"); 373 MODULE_ALIAS("platform:bdw-rt5677"); 374