1 // SPDX-License-Identifier: GPL-2.0+ 2 // 3 // Machine driver for AMD ACP Audio engine using ES8336 codec. 4 // 5 // Copyright 2023 Marian Postevca <posteuca@mutex.one> 6 #include <sound/core.h> 7 #include <sound/soc.h> 8 #include <sound/pcm.h> 9 #include <sound/pcm_params.h> 10 #include <sound/soc-dapm.h> 11 #include <sound/jack.h> 12 #include <sound/soc-acpi.h> 13 #include <linux/clk.h> 14 #include <linux/gpio.h> 15 #include <linux/gpio/consumer.h> 16 #include <linux/module.h> 17 #include <linux/i2c.h> 18 #include <linux/input.h> 19 #include <linux/io.h> 20 #include <linux/acpi.h> 21 #include <linux/dmi.h> 22 #include "../acp-mach.h" 23 #include "acp3x-es83xx.h" 24 25 #define get_mach_priv(card) ((struct acp3x_es83xx_private *)((acp_get_drvdata(card))->mach_priv)) 26 27 #define DUAL_CHANNEL 2 28 29 #define ES83XX_ENABLE_DMIC BIT(4) 30 #define ES83XX_48_MHZ_MCLK BIT(5) 31 32 struct acp3x_es83xx_private { 33 bool speaker_on; 34 bool headphone_on; 35 unsigned long quirk; 36 struct snd_soc_component *codec; 37 struct device *codec_dev; 38 struct gpio_desc *gpio_speakers, *gpio_headphone; 39 struct acpi_gpio_params enable_spk_gpio, enable_hp_gpio; 40 struct acpi_gpio_mapping gpio_mapping[3]; 41 struct snd_soc_dapm_route mic_map[2]; 42 }; 43 44 static const unsigned int channels[] = { 45 DUAL_CHANNEL, 46 }; 47 48 static const struct snd_pcm_hw_constraint_list constraints_channels = { 49 .count = ARRAY_SIZE(channels), 50 .list = channels, 51 .mask = 0, 52 }; 53 54 #define ES83xx_12288_KHZ_MCLK_FREQ (48000 * 256) 55 #define ES83xx_48_MHZ_MCLK_FREQ (48000 * 1000) 56 57 static int acp3x_es83xx_headphone_power_event(struct snd_soc_dapm_widget *w, 58 struct snd_kcontrol *kcontrol, int event); 59 static int acp3x_es83xx_speaker_power_event(struct snd_soc_dapm_widget *w, 60 struct snd_kcontrol *kcontrol, int event); 61 62 static int acp3x_es83xx_codec_startup(struct snd_pcm_substream *substream) 63 { 64 struct snd_pcm_runtime *runtime; 65 struct snd_soc_pcm_runtime *rtd; 66 struct snd_soc_dai *codec_dai; 67 struct acp3x_es83xx_private *priv; 68 unsigned int freq; 69 int ret; 70 71 runtime = substream->runtime; 72 rtd = snd_soc_substream_to_rtd(substream); 73 codec_dai = snd_soc_rtd_to_codec(rtd, 0); 74 priv = get_mach_priv(rtd->card); 75 76 if (priv->quirk & ES83XX_48_MHZ_MCLK) { 77 dev_dbg(priv->codec_dev, "using a 48Mhz MCLK\n"); 78 freq = ES83xx_48_MHZ_MCLK_FREQ; 79 } else { 80 dev_dbg(priv->codec_dev, "using a 12.288Mhz MCLK\n"); 81 freq = ES83xx_12288_KHZ_MCLK_FREQ; 82 } 83 84 ret = snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_OUT); 85 if (ret < 0) { 86 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret); 87 return ret; 88 } 89 90 runtime->hw.channels_max = DUAL_CHANNEL; 91 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 92 &constraints_channels); 93 94 return 0; 95 } 96 97 static struct snd_soc_jack es83xx_jack; 98 99 static struct snd_soc_jack_pin es83xx_jack_pins[] = { 100 { 101 .pin = "Headphone", 102 .mask = SND_JACK_HEADPHONE, 103 }, 104 { 105 .pin = "Headset Mic", 106 .mask = SND_JACK_MICROPHONE, 107 }, 108 }; 109 110 static const struct snd_soc_dapm_widget acp3x_es83xx_widgets[] = { 111 SND_SOC_DAPM_SPK("Speaker", NULL), 112 SND_SOC_DAPM_HP("Headphone", NULL), 113 SND_SOC_DAPM_MIC("Headset Mic", NULL), 114 SND_SOC_DAPM_MIC("Internal Mic", NULL), 115 116 SND_SOC_DAPM_SUPPLY("Headphone Power", SND_SOC_NOPM, 0, 0, 117 acp3x_es83xx_headphone_power_event, 118 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), 119 SND_SOC_DAPM_SUPPLY("Speaker Power", SND_SOC_NOPM, 0, 0, 120 acp3x_es83xx_speaker_power_event, 121 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), 122 }; 123 124 static const struct snd_soc_dapm_route acp3x_es83xx_audio_map[] = { 125 {"Headphone", NULL, "HPOL"}, 126 {"Headphone", NULL, "HPOR"}, 127 {"Headphone", NULL, "Headphone Power"}, 128 129 /* 130 * There is no separate speaker output instead the speakers are muxed to 131 * the HP outputs. The mux is controlled Speaker and/or headphone switch. 132 */ 133 {"Speaker", NULL, "HPOL"}, 134 {"Speaker", NULL, "HPOR"}, 135 {"Speaker", NULL, "Speaker Power"}, 136 }; 137 138 139 static const struct snd_kcontrol_new acp3x_es83xx_controls[] = { 140 SOC_DAPM_PIN_SWITCH("Speaker"), 141 SOC_DAPM_PIN_SWITCH("Headphone"), 142 SOC_DAPM_PIN_SWITCH("Headset Mic"), 143 SOC_DAPM_PIN_SWITCH("Internal Mic"), 144 }; 145 146 static int acp3x_es83xx_configure_widgets(struct snd_soc_card *card) 147 { 148 card->dapm_widgets = acp3x_es83xx_widgets; 149 card->num_dapm_widgets = ARRAY_SIZE(acp3x_es83xx_widgets); 150 card->controls = acp3x_es83xx_controls; 151 card->num_controls = ARRAY_SIZE(acp3x_es83xx_controls); 152 card->dapm_routes = acp3x_es83xx_audio_map; 153 card->num_dapm_routes = ARRAY_SIZE(acp3x_es83xx_audio_map); 154 155 return 0; 156 } 157 158 static int acp3x_es83xx_headphone_power_event(struct snd_soc_dapm_widget *w, 159 struct snd_kcontrol *kcontrol, int event) 160 { 161 struct acp3x_es83xx_private *priv = get_mach_priv(w->dapm->card); 162 163 dev_dbg(priv->codec_dev, "headphone power event = %d\n", event); 164 if (SND_SOC_DAPM_EVENT_ON(event)) 165 priv->headphone_on = true; 166 else 167 priv->headphone_on = false; 168 169 gpiod_set_value_cansleep(priv->gpio_speakers, priv->speaker_on); 170 gpiod_set_value_cansleep(priv->gpio_headphone, priv->headphone_on); 171 172 return 0; 173 } 174 175 static int acp3x_es83xx_speaker_power_event(struct snd_soc_dapm_widget *w, 176 struct snd_kcontrol *kcontrol, int event) 177 { 178 struct acp3x_es83xx_private *priv = get_mach_priv(w->dapm->card); 179 180 dev_dbg(priv->codec_dev, "speaker power event: %d\n", event); 181 if (SND_SOC_DAPM_EVENT_ON(event)) 182 priv->speaker_on = true; 183 else 184 priv->speaker_on = false; 185 186 gpiod_set_value_cansleep(priv->gpio_speakers, priv->speaker_on); 187 gpiod_set_value_cansleep(priv->gpio_headphone, priv->headphone_on); 188 189 return 0; 190 } 191 192 static int acp3x_es83xx_suspend_pre(struct snd_soc_card *card) 193 { 194 struct acp3x_es83xx_private *priv = get_mach_priv(card); 195 196 /* We need to disable the jack in the machine driver suspend 197 * callback so that the CODEC suspend callback actually gets 198 * called. Without doing it, the CODEC suspend/resume 199 * callbacks do not get called if headphones are plugged in. 200 * This is because plugging in headphones keeps some supplies 201 * active, this in turn means that the lowest bias level 202 * that the CODEC can go to is SND_SOC_BIAS_STANDBY. 203 * If components do not set idle_bias_on to true then 204 * their suspend/resume callbacks do not get called. 205 */ 206 dev_dbg(priv->codec_dev, "card suspend\n"); 207 snd_soc_component_set_jack(priv->codec, NULL, NULL); 208 return 0; 209 } 210 211 static int acp3x_es83xx_resume_post(struct snd_soc_card *card) 212 { 213 struct acp3x_es83xx_private *priv = get_mach_priv(card); 214 215 /* We disabled jack detection in suspend callback, 216 * enable it back. 217 */ 218 dev_dbg(priv->codec_dev, "card resume\n"); 219 snd_soc_component_set_jack(priv->codec, &es83xx_jack, NULL); 220 return 0; 221 } 222 223 static int acp3x_es83xx_configure_gpios(struct acp3x_es83xx_private *priv) 224 { 225 226 priv->enable_spk_gpio.crs_entry_index = 0; 227 priv->enable_hp_gpio.crs_entry_index = 1; 228 229 priv->enable_spk_gpio.active_low = false; 230 priv->enable_hp_gpio.active_low = false; 231 232 priv->gpio_mapping[0].name = "speakers-enable-gpios"; 233 priv->gpio_mapping[0].data = &priv->enable_spk_gpio; 234 priv->gpio_mapping[0].size = 1; 235 priv->gpio_mapping[0].quirks = ACPI_GPIO_QUIRK_ONLY_GPIOIO; 236 237 priv->gpio_mapping[1].name = "headphone-enable-gpios"; 238 priv->gpio_mapping[1].data = &priv->enable_hp_gpio; 239 priv->gpio_mapping[1].size = 1; 240 priv->gpio_mapping[1].quirks = ACPI_GPIO_QUIRK_ONLY_GPIOIO; 241 242 dev_info(priv->codec_dev, "speaker gpio %d active %s, headphone gpio %d active %s\n", 243 priv->enable_spk_gpio.crs_entry_index, 244 priv->enable_spk_gpio.active_low ? "low" : "high", 245 priv->enable_hp_gpio.crs_entry_index, 246 priv->enable_hp_gpio.active_low ? "low" : "high"); 247 return 0; 248 } 249 250 static int acp3x_es83xx_configure_mics(struct acp3x_es83xx_private *priv) 251 { 252 int num_routes = 0; 253 int i; 254 255 if (!(priv->quirk & ES83XX_ENABLE_DMIC)) { 256 priv->mic_map[num_routes].sink = "MIC1"; 257 priv->mic_map[num_routes].source = "Internal Mic"; 258 num_routes++; 259 } 260 261 priv->mic_map[num_routes].sink = "MIC2"; 262 priv->mic_map[num_routes].source = "Headset Mic"; 263 num_routes++; 264 265 for (i = 0; i < num_routes; i++) 266 dev_info(priv->codec_dev, "%s is %s\n", 267 priv->mic_map[i].source, priv->mic_map[i].sink); 268 269 return num_routes; 270 } 271 272 static int acp3x_es83xx_init(struct snd_soc_pcm_runtime *runtime) 273 { 274 struct snd_soc_component *codec = snd_soc_rtd_to_codec(runtime, 0)->component; 275 struct snd_soc_card *card = runtime->card; 276 struct acp3x_es83xx_private *priv = get_mach_priv(card); 277 int ret = 0; 278 int num_routes; 279 280 ret = snd_soc_card_jack_new_pins(card, "Headset", 281 SND_JACK_HEADSET | SND_JACK_BTN_0, 282 &es83xx_jack, es83xx_jack_pins, 283 ARRAY_SIZE(es83xx_jack_pins)); 284 if (ret) { 285 dev_err(card->dev, "jack creation failed %d\n", ret); 286 return ret; 287 } 288 289 snd_jack_set_key(es83xx_jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); 290 291 snd_soc_component_set_jack(codec, &es83xx_jack, NULL); 292 293 priv->codec = codec; 294 acp3x_es83xx_configure_gpios(priv); 295 296 ret = devm_acpi_dev_add_driver_gpios(priv->codec_dev, priv->gpio_mapping); 297 if (ret) 298 dev_warn(priv->codec_dev, "failed to add speaker gpio\n"); 299 300 priv->gpio_speakers = gpiod_get_optional(priv->codec_dev, "speakers-enable", 301 priv->enable_spk_gpio.active_low ? GPIOD_OUT_LOW : GPIOD_OUT_HIGH); 302 if (IS_ERR(priv->gpio_speakers)) { 303 dev_err(priv->codec_dev, "could not get speakers-enable GPIO\n"); 304 return PTR_ERR(priv->gpio_speakers); 305 } 306 307 priv->gpio_headphone = gpiod_get_optional(priv->codec_dev, "headphone-enable", 308 priv->enable_hp_gpio.active_low ? GPIOD_OUT_LOW : GPIOD_OUT_HIGH); 309 if (IS_ERR(priv->gpio_headphone)) { 310 dev_err(priv->codec_dev, "could not get headphone-enable GPIO\n"); 311 return PTR_ERR(priv->gpio_headphone); 312 } 313 314 num_routes = acp3x_es83xx_configure_mics(priv); 315 if (num_routes > 0) { 316 ret = snd_soc_dapm_add_routes(&card->dapm, priv->mic_map, num_routes); 317 if (ret != 0) 318 device_remove_software_node(priv->codec_dev); 319 } 320 321 return ret; 322 } 323 324 static const struct snd_soc_ops acp3x_es83xx_ops = { 325 .startup = acp3x_es83xx_codec_startup, 326 }; 327 328 329 SND_SOC_DAILINK_DEF(codec, 330 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-ESSX8336:00", "ES8316 HiFi"))); 331 332 static const struct dmi_system_id acp3x_es83xx_dmi_table[] = { 333 { 334 .matches = { 335 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "HUAWEI"), 336 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "KLVL-WXXW"), 337 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "M1010"), 338 }, 339 .driver_data = (void *)(ES83XX_ENABLE_DMIC), 340 }, 341 { 342 .matches = { 343 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "HUAWEI"), 344 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "KLVL-WXX9"), 345 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "M1010"), 346 }, 347 .driver_data = (void *)(ES83XX_ENABLE_DMIC), 348 }, 349 { 350 .matches = { 351 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "HUAWEI"), 352 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "BOM-WXX9"), 353 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "M1010"), 354 }, 355 .driver_data = (void *)(ES83XX_ENABLE_DMIC|ES83XX_48_MHZ_MCLK), 356 }, 357 { 358 .matches = { 359 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "HUAWEI"), 360 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HVY-WXX9"), 361 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "M1010"), 362 }, 363 .driver_data = (void *)(ES83XX_ENABLE_DMIC), 364 }, 365 { 366 .matches = { 367 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "HUAWEI"), 368 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HVY-WXX9"), 369 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "M1020"), 370 }, 371 .driver_data = (void *)(ES83XX_ENABLE_DMIC), 372 }, 373 { 374 .matches = { 375 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "HUAWEI"), 376 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HVY-WXX9"), 377 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "M1040"), 378 }, 379 .driver_data = (void *)(ES83XX_ENABLE_DMIC), 380 }, 381 {} 382 }; 383 384 static int acp3x_es83xx_configure_link(struct snd_soc_card *card, struct snd_soc_dai_link *link) 385 { 386 link->codecs = codec; 387 link->num_codecs = ARRAY_SIZE(codec); 388 link->init = acp3x_es83xx_init; 389 link->ops = &acp3x_es83xx_ops; 390 link->dai_fmt = SND_SOC_DAIFMT_I2S 391 | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBP_CFP; 392 393 return 0; 394 } 395 396 static int acp3x_es83xx_probe(struct snd_soc_card *card) 397 { 398 int ret = 0; 399 struct device *dev = card->dev; 400 const struct dmi_system_id *dmi_id; 401 402 dmi_id = dmi_first_match(acp3x_es83xx_dmi_table); 403 if (dmi_id && dmi_id->driver_data) { 404 struct acp3x_es83xx_private *priv; 405 struct acp_card_drvdata *acp_drvdata; 406 struct acpi_device *adev; 407 struct device *codec_dev; 408 409 acp_drvdata = (struct acp_card_drvdata *)card->drvdata; 410 411 dev_info(dev, "matched DMI table with this system, trying to register sound card\n"); 412 413 adev = acpi_dev_get_first_match_dev(acp_drvdata->acpi_mach->id, NULL, -1); 414 if (!adev) { 415 dev_err(dev, "Error cannot find '%s' dev\n", acp_drvdata->acpi_mach->id); 416 return -ENXIO; 417 } 418 419 codec_dev = acpi_get_first_physical_node(adev); 420 acpi_dev_put(adev); 421 if (!codec_dev) { 422 dev_warn(dev, "Error cannot find codec device, will defer probe\n"); 423 return -EPROBE_DEFER; 424 } 425 426 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); 427 if (!priv) { 428 put_device(codec_dev); 429 return -ENOMEM; 430 } 431 432 priv->codec_dev = codec_dev; 433 priv->quirk = (unsigned long)dmi_id->driver_data; 434 acp_drvdata->mach_priv = priv; 435 dev_info(dev, "successfully probed the sound card\n"); 436 } else { 437 ret = -ENODEV; 438 dev_warn(dev, "this system has a ES83xx codec defined in ACPI, but the driver doesn't have this system registered in DMI table\n"); 439 } 440 return ret; 441 } 442 443 444 void acp3x_es83xx_init_ops(struct acp_mach_ops *ops) 445 { 446 ops->probe = acp3x_es83xx_probe; 447 ops->configure_widgets = acp3x_es83xx_configure_widgets; 448 ops->configure_link = acp3x_es83xx_configure_link; 449 ops->suspend_pre = acp3x_es83xx_suspend_pre; 450 ops->resume_post = acp3x_es83xx_resume_post; 451 } 452