1 // SPDX-License-Identifier: GPL-2.0 2 // 3 // CS42L43 CODEC driver jack handling 4 // 5 // Copyright (C) 2022-2023 Cirrus Logic, Inc. and 6 // Cirrus Logic International Semiconductor Ltd. 7 8 #include <linux/build_bug.h> 9 #include <linux/completion.h> 10 #include <linux/delay.h> 11 #include <linux/errno.h> 12 #include <linux/irq.h> 13 #include <linux/jiffies.h> 14 #include <linux/mfd/cs42l43.h> 15 #include <linux/mfd/cs42l43-regs.h> 16 #include <linux/mutex.h> 17 #include <linux/pm_runtime.h> 18 #include <linux/property.h> 19 #include <linux/regmap.h> 20 #include <linux/time.h> 21 #include <linux/workqueue.h> 22 #include <sound/control.h> 23 #include <sound/jack.h> 24 #include <sound/pcm.h> 25 #include <sound/pcm_params.h> 26 #include <sound/soc-component.h> 27 #include <sound/soc-jack.h> 28 #include <sound/soc.h> 29 30 #include "cs42l43.h" 31 32 static const unsigned int cs42l43_accdet_us[] = { 33 20, 100, 1000, 10000, 50000, 75000, 100000, 200000, 34 }; 35 36 static const unsigned int cs42l43_accdet_db_ms[] = { 37 0, 125, 250, 500, 750, 1000, 1250, 1500, 38 }; 39 40 static const unsigned int cs42l43_accdet_ramp_ms[] = { 10, 40, 90, 170 }; 41 42 static const unsigned int cs42l43_accdet_bias_sense[] = { 43 14, 24, 43, 52, 61, 71, 90, 99, 0, 44 }; 45 46 static int cs42l43_find_index(struct cs42l43_codec *priv, const char * const prop, 47 unsigned int defval, unsigned int *val, 48 const unsigned int *values, const int nvalues) 49 { 50 struct cs42l43 *cs42l43 = priv->core; 51 int i, ret; 52 53 ret = device_property_read_u32(cs42l43->dev, prop, &defval); 54 if (ret != -EINVAL && ret < 0) { 55 dev_err(priv->dev, "Property %s malformed: %d\n", prop, ret); 56 return ret; 57 } 58 59 if (val) 60 *val = defval; 61 62 for (i = 0; i < nvalues; i++) 63 if (defval == values[i]) 64 return i; 65 66 dev_err(priv->dev, "Invalid value for property %s: %d\n", prop, defval); 67 return -EINVAL; 68 } 69 70 int cs42l43_set_jack(struct snd_soc_component *component, 71 struct snd_soc_jack *jack, void *d) 72 { 73 struct cs42l43_codec *priv = snd_soc_component_get_drvdata(component); 74 struct cs42l43 *cs42l43 = priv->core; 75 /* This tip sense invert is always set, HW wants an inverted signal */ 76 unsigned int tip_deb = CS42L43_TIPSENSE_INV_MASK; 77 unsigned int hs2 = 0x2 << CS42L43_HSDET_MODE_SHIFT; 78 unsigned int autocontrol = 0, pdncntl = 0; 79 int ret; 80 81 dev_dbg(priv->dev, "Configure accessory detect\n"); 82 83 ret = pm_runtime_resume_and_get(priv->dev); 84 if (ret) { 85 dev_err(priv->dev, "Failed to resume for jack config: %d\n", ret); 86 return ret; 87 } 88 89 mutex_lock(&priv->jack_lock); 90 91 priv->jack_hp = jack; 92 93 if (!jack) 94 goto done; 95 96 ret = device_property_count_u32(cs42l43->dev, "cirrus,buttons-ohms"); 97 if (ret != -EINVAL) { 98 if (ret < 0) { 99 dev_err(priv->dev, "Property cirrus,buttons-ohms malformed: %d\n", 100 ret); 101 goto error; 102 } 103 104 if (ret > CS42L43_N_BUTTONS) { 105 ret = -EINVAL; 106 dev_err(priv->dev, "Property cirrus,buttons-ohms too many entries\n"); 107 goto error; 108 } 109 110 ret = device_property_read_u32_array(cs42l43->dev, "cirrus,buttons-ohms", 111 priv->buttons, ret); 112 if (ret < 0) { 113 dev_err(priv->dev, "Property cirrus,button-ohms malformed: %d\n", 114 ret); 115 goto error; 116 } 117 } else { 118 priv->buttons[0] = 70; 119 priv->buttons[1] = 185; 120 priv->buttons[2] = 355; 121 priv->buttons[3] = 735; 122 } 123 124 ret = cs42l43_find_index(priv, "cirrus,detect-us", 50000, &priv->detect_us, 125 cs42l43_accdet_us, ARRAY_SIZE(cs42l43_accdet_us)); 126 if (ret < 0) 127 goto error; 128 129 hs2 |= ret << CS42L43_AUTO_HSDET_TIME_SHIFT; 130 131 priv->bias_low = device_property_read_bool(cs42l43->dev, "cirrus,bias-low"); 132 133 ret = cs42l43_find_index(priv, "cirrus,bias-ramp-ms", 170, 134 &priv->bias_ramp_ms, cs42l43_accdet_ramp_ms, 135 ARRAY_SIZE(cs42l43_accdet_ramp_ms)); 136 if (ret < 0) 137 goto error; 138 139 hs2 |= ret << CS42L43_HSBIAS_RAMP_SHIFT; 140 141 ret = cs42l43_find_index(priv, "cirrus,bias-sense-microamp", 14, 142 &priv->bias_sense_ua, cs42l43_accdet_bias_sense, 143 ARRAY_SIZE(cs42l43_accdet_bias_sense)); 144 if (ret < 0) 145 goto error; 146 147 if (priv->bias_sense_ua) 148 autocontrol |= ret << CS42L43_HSBIAS_SENSE_TRIP_SHIFT; 149 150 if (!device_property_read_bool(cs42l43->dev, "cirrus,button-automute")) 151 autocontrol |= CS42L43_S0_AUTO_ADCMUTE_DISABLE_MASK; 152 153 ret = device_property_read_u32(cs42l43->dev, "cirrus,tip-debounce-ms", 154 &priv->tip_debounce_ms); 155 if (ret < 0 && ret != -EINVAL) { 156 dev_err(priv->dev, "Property cirrus,tip-debounce-ms malformed: %d\n", ret); 157 goto error; 158 } 159 160 /* This tip sense invert is set normally, as TIPSENSE_INV already inverted */ 161 if (device_property_read_bool(cs42l43->dev, "cirrus,tip-invert")) 162 autocontrol |= 0x1 << CS42L43_JACKDET_INV_SHIFT; 163 164 if (device_property_read_bool(cs42l43->dev, "cirrus,tip-disable-pullup")) 165 autocontrol |= 0x1 << CS42L43_JACKDET_MODE_SHIFT; 166 else 167 autocontrol |= 0x3 << CS42L43_JACKDET_MODE_SHIFT; 168 169 ret = cs42l43_find_index(priv, "cirrus,tip-fall-db-ms", 500, 170 &priv->tip_fall_db_ms, cs42l43_accdet_db_ms, 171 ARRAY_SIZE(cs42l43_accdet_db_ms)); 172 if (ret < 0) 173 goto error; 174 175 tip_deb |= ret << CS42L43_TIPSENSE_FALLING_DB_TIME_SHIFT; 176 177 ret = cs42l43_find_index(priv, "cirrus,tip-rise-db-ms", 500, 178 &priv->tip_rise_db_ms, cs42l43_accdet_db_ms, 179 ARRAY_SIZE(cs42l43_accdet_db_ms)); 180 if (ret < 0) 181 goto error; 182 183 tip_deb |= ret << CS42L43_TIPSENSE_RISING_DB_TIME_SHIFT; 184 185 if (device_property_read_bool(cs42l43->dev, "cirrus,use-ring-sense")) { 186 unsigned int ring_deb = 0; 187 188 priv->use_ring_sense = true; 189 190 /* HW wants an inverted signal, so invert the invert */ 191 if (!device_property_read_bool(cs42l43->dev, "cirrus,ring-invert")) 192 ring_deb |= CS42L43_RINGSENSE_INV_MASK; 193 194 if (!device_property_read_bool(cs42l43->dev, 195 "cirrus,ring-disable-pullup")) 196 ring_deb |= CS42L43_RINGSENSE_PULLUP_PDNB_MASK; 197 198 ret = cs42l43_find_index(priv, "cirrus,ring-fall-db-ms", 500, 199 NULL, cs42l43_accdet_db_ms, 200 ARRAY_SIZE(cs42l43_accdet_db_ms)); 201 if (ret < 0) 202 goto error; 203 204 ring_deb |= ret << CS42L43_RINGSENSE_FALLING_DB_TIME_SHIFT; 205 206 ret = cs42l43_find_index(priv, "cirrus,ring-rise-db-ms", 500, 207 NULL, cs42l43_accdet_db_ms, 208 ARRAY_SIZE(cs42l43_accdet_db_ms)); 209 if (ret < 0) 210 goto error; 211 212 ring_deb |= ret << CS42L43_RINGSENSE_RISING_DB_TIME_SHIFT; 213 pdncntl |= CS42L43_RING_SENSE_EN_MASK; 214 215 regmap_update_bits(cs42l43->regmap, CS42L43_RINGSENSE_DEB_CTRL, 216 CS42L43_RINGSENSE_INV_MASK | 217 CS42L43_RINGSENSE_PULLUP_PDNB_MASK | 218 CS42L43_RINGSENSE_FALLING_DB_TIME_MASK | 219 CS42L43_RINGSENSE_RISING_DB_TIME_MASK, 220 ring_deb); 221 } 222 223 regmap_update_bits(cs42l43->regmap, CS42L43_TIPSENSE_DEB_CTRL, 224 CS42L43_TIPSENSE_INV_MASK | 225 CS42L43_TIPSENSE_FALLING_DB_TIME_MASK | 226 CS42L43_TIPSENSE_RISING_DB_TIME_MASK, tip_deb); 227 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 228 CS42L43_HSBIAS_RAMP_MASK | CS42L43_HSDET_MODE_MASK | 229 CS42L43_AUTO_HSDET_TIME_MASK, hs2); 230 231 done: 232 ret = 0; 233 234 regmap_update_bits(cs42l43->regmap, CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL, 235 CS42L43_JACKDET_MODE_MASK | CS42L43_S0_AUTO_ADCMUTE_DISABLE_MASK | 236 CS42L43_HSBIAS_SENSE_TRIP_MASK, autocontrol); 237 regmap_update_bits(cs42l43->regmap, CS42L43_PDNCNTL, 238 CS42L43_RING_SENSE_EN_MASK, pdncntl); 239 240 dev_dbg(priv->dev, "Successfully configured accessory detect\n"); 241 242 error: 243 mutex_unlock(&priv->jack_lock); 244 245 pm_runtime_put_autosuspend(priv->dev); 246 247 return ret; 248 } 249 250 static void cs42l43_start_hs_bias(struct cs42l43_codec *priv, bool type_detect) 251 { 252 struct cs42l43 *cs42l43 = priv->core; 253 unsigned int val = 0x3 << CS42L43_HSBIAS_MODE_SHIFT; 254 255 dev_dbg(priv->dev, "Start headset bias\n"); 256 257 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 258 CS42L43_HS_CLAMP_DISABLE_MASK, CS42L43_HS_CLAMP_DISABLE_MASK); 259 260 if (!type_detect) { 261 if (priv->bias_low) 262 val = 0x2 << CS42L43_HSBIAS_MODE_SHIFT; 263 264 if (priv->bias_sense_ua) 265 regmap_update_bits(cs42l43->regmap, 266 CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL, 267 CS42L43_HSBIAS_SENSE_EN_MASK | 268 CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK, 269 CS42L43_HSBIAS_SENSE_EN_MASK | 270 CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK); 271 } 272 273 regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1, 274 CS42L43_HSBIAS_MODE_MASK, val); 275 276 msleep(priv->bias_ramp_ms); 277 } 278 279 static void cs42l43_stop_hs_bias(struct cs42l43_codec *priv) 280 { 281 struct cs42l43 *cs42l43 = priv->core; 282 283 dev_dbg(priv->dev, "Stop headset bias\n"); 284 285 regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1, 286 CS42L43_HSBIAS_MODE_MASK, 0x1 << CS42L43_HSBIAS_MODE_SHIFT); 287 288 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 289 CS42L43_HS_CLAMP_DISABLE_MASK, 0); 290 291 if (priv->bias_sense_ua) { 292 regmap_update_bits(cs42l43->regmap, 293 CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL, 294 CS42L43_HSBIAS_SENSE_EN_MASK | 295 CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK, 0); 296 } 297 } 298 299 irqreturn_t cs42l43_bias_detect_clamp(int irq, void *data) 300 { 301 struct cs42l43_codec *priv = data; 302 303 queue_delayed_work(system_wq, &priv->bias_sense_timeout, 304 msecs_to_jiffies(1000)); 305 306 return IRQ_HANDLED; 307 } 308 309 #define CS42L43_JACK_PRESENT 0x3 310 #define CS42L43_JACK_ABSENT 0x0 311 312 #define CS42L43_JACK_OPTICAL (SND_JACK_MECHANICAL | SND_JACK_AVOUT) 313 #define CS42L43_JACK_HEADPHONE (SND_JACK_MECHANICAL | SND_JACK_HEADPHONE) 314 #define CS42L43_JACK_HEADSET (SND_JACK_MECHANICAL | SND_JACK_HEADSET) 315 #define CS42L43_JACK_LINEOUT (SND_JACK_MECHANICAL | SND_JACK_LINEOUT) 316 #define CS42L43_JACK_LINEIN (SND_JACK_MECHANICAL | SND_JACK_LINEIN) 317 #define CS42L43_JACK_EXTENSION (SND_JACK_MECHANICAL) 318 #define CS42L43_JACK_BUTTONS (SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2 | \ 319 SND_JACK_BTN_3 | SND_JACK_BTN_4 | SND_JACK_BTN_5) 320 321 static inline bool cs42l43_jack_present(struct cs42l43_codec *priv) 322 { 323 struct cs42l43 *cs42l43 = priv->core; 324 unsigned int sts = 0; 325 326 regmap_read(cs42l43->regmap, CS42L43_TIP_RING_SENSE_INTERRUPT_STATUS, &sts); 327 328 sts = (sts >> CS42L43_TIPSENSE_PLUG_DB_STS_SHIFT) & CS42L43_JACK_PRESENT; 329 330 return sts == CS42L43_JACK_PRESENT; 331 } 332 333 static void cs42l43_start_button_detect(struct cs42l43_codec *priv) 334 { 335 struct cs42l43 *cs42l43 = priv->core; 336 unsigned int val = 0x3 << CS42L43_BUTTON_DETECT_MODE_SHIFT; 337 338 dev_dbg(priv->dev, "Start button detect\n"); 339 340 priv->button_detect_running = true; 341 342 if (priv->bias_low) 343 val = 0x1 << CS42L43_BUTTON_DETECT_MODE_SHIFT; 344 345 regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1, 346 CS42L43_BUTTON_DETECT_MODE_MASK | 347 CS42L43_MIC_LVL_DET_DISABLE_MASK, val); 348 } 349 350 static void cs42l43_stop_button_detect(struct cs42l43_codec *priv) 351 { 352 struct cs42l43 *cs42l43 = priv->core; 353 354 dev_dbg(priv->dev, "Stop button detect\n"); 355 356 regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1, 357 CS42L43_BUTTON_DETECT_MODE_MASK | 358 CS42L43_MIC_LVL_DET_DISABLE_MASK, 359 CS42L43_MIC_LVL_DET_DISABLE_MASK); 360 361 priv->button_detect_running = false; 362 } 363 364 #define CS42L43_BUTTON_COMB_MAX 512 365 #define CS42L43_BUTTON_ROUT 2210 366 367 void cs42l43_button_press_work(struct work_struct *work) 368 { 369 struct cs42l43_codec *priv = container_of(work, struct cs42l43_codec, 370 button_press_work.work); 371 struct cs42l43 *cs42l43 = priv->core; 372 unsigned int buttons = 0; 373 unsigned int val = 0; 374 int i, ret; 375 376 ret = pm_runtime_resume_and_get(priv->dev); 377 if (ret) { 378 dev_err(priv->dev, "Failed to resume for button press: %d\n", ret); 379 return; 380 } 381 382 mutex_lock(&priv->jack_lock); 383 384 if (!priv->button_detect_running) { 385 dev_dbg(priv->dev, "Spurious button press IRQ\n"); 386 goto error; 387 } 388 389 regmap_read(cs42l43->regmap, CS42L43_DETECT_STATUS_1, &val); 390 391 /* Bail if jack removed, the button is irrelevant and likely invalid */ 392 if (!cs42l43_jack_present(priv)) { 393 dev_dbg(priv->dev, "Button ignored due to removal\n"); 394 goto error; 395 } 396 397 if (val & CS42L43_HSBIAS_CLAMP_STS_MASK) { 398 dev_dbg(priv->dev, "Button ignored due to bias sense\n"); 399 goto error; 400 } 401 402 val = (val & CS42L43_HSDET_DC_STS_MASK) >> CS42L43_HSDET_DC_STS_SHIFT; 403 val = ((CS42L43_BUTTON_COMB_MAX << 20) / (val + 1)) - (1 << 20); 404 if (val) 405 val = (CS42L43_BUTTON_ROUT << 20) / val; 406 else 407 val = UINT_MAX; 408 409 for (i = 0; i < CS42L43_N_BUTTONS; i++) { 410 if (val < priv->buttons[i]) { 411 buttons = SND_JACK_BTN_0 >> i; 412 dev_dbg(priv->dev, "Detected button %d at %d Ohms\n", i, val); 413 break; 414 } 415 } 416 417 if (!buttons) 418 dev_dbg(priv->dev, "Unrecognised button: %d Ohms\n", val); 419 420 snd_soc_jack_report(priv->jack_hp, buttons, CS42L43_JACK_BUTTONS); 421 422 error: 423 mutex_unlock(&priv->jack_lock); 424 425 pm_runtime_put_autosuspend(priv->dev); 426 } 427 428 irqreturn_t cs42l43_button_press(int irq, void *data) 429 { 430 struct cs42l43_codec *priv = data; 431 432 // Wait for 2 full cycles of comb filter to ensure good reading 433 queue_delayed_work(system_wq, &priv->button_press_work, 434 msecs_to_jiffies(20)); 435 436 return IRQ_HANDLED; 437 } 438 439 void cs42l43_button_release_work(struct work_struct *work) 440 { 441 struct cs42l43_codec *priv = container_of(work, struct cs42l43_codec, 442 button_release_work); 443 int ret; 444 445 ret = pm_runtime_resume_and_get(priv->dev); 446 if (ret) { 447 dev_err(priv->dev, "Failed to resume for button release: %d\n", ret); 448 return; 449 } 450 451 mutex_lock(&priv->jack_lock); 452 453 if (priv->button_detect_running) { 454 dev_dbg(priv->dev, "Button release IRQ\n"); 455 456 snd_soc_jack_report(priv->jack_hp, 0, CS42L43_JACK_BUTTONS); 457 } else { 458 dev_dbg(priv->dev, "Spurious button release IRQ\n"); 459 } 460 461 mutex_unlock(&priv->jack_lock); 462 463 pm_runtime_put_autosuspend(priv->dev); 464 } 465 466 irqreturn_t cs42l43_button_release(int irq, void *data) 467 { 468 struct cs42l43_codec *priv = data; 469 470 queue_work(system_wq, &priv->button_release_work); 471 472 return IRQ_HANDLED; 473 } 474 475 void cs42l43_bias_sense_timeout(struct work_struct *work) 476 { 477 struct cs42l43_codec *priv = container_of(work, struct cs42l43_codec, 478 bias_sense_timeout.work); 479 struct cs42l43 *cs42l43 = priv->core; 480 int ret; 481 482 ret = pm_runtime_resume_and_get(priv->dev); 483 if (ret) { 484 dev_err(priv->dev, "Failed to resume for bias sense: %d\n", ret); 485 return; 486 } 487 488 mutex_lock(&priv->jack_lock); 489 490 if (cs42l43_jack_present(priv) && priv->button_detect_running) { 491 dev_dbg(priv->dev, "Bias sense timeout out, restore bias\n"); 492 493 regmap_update_bits(cs42l43->regmap, 494 CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL, 495 CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK, 0); 496 regmap_update_bits(cs42l43->regmap, 497 CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL, 498 CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK, 499 CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK); 500 } 501 502 mutex_unlock(&priv->jack_lock); 503 504 pm_runtime_put_autosuspend(priv->dev); 505 } 506 507 static void cs42l43_start_load_detect(struct cs42l43_codec *priv) 508 { 509 struct cs42l43 *cs42l43 = priv->core; 510 511 dev_dbg(priv->dev, "Start load detect\n"); 512 513 snd_soc_dapm_mutex_lock(snd_soc_component_get_dapm(priv->component)); 514 515 priv->load_detect_running = true; 516 517 if (priv->hp_ena && !priv->hp_ilimited) { 518 unsigned long time_left; 519 520 reinit_completion(&priv->hp_shutdown); 521 522 regmap_update_bits(cs42l43->regmap, CS42L43_BLOCK_EN8, 523 CS42L43_HP_EN_MASK, 0); 524 525 time_left = wait_for_completion_timeout(&priv->hp_shutdown, 526 msecs_to_jiffies(CS42L43_HP_TIMEOUT_MS)); 527 if (!time_left) 528 dev_err(priv->dev, "Load detect HP power down timed out\n"); 529 } 530 531 regmap_update_bits(cs42l43->regmap, CS42L43_BLOCK_EN3, 532 CS42L43_ADC1_EN_MASK | CS42L43_ADC2_EN_MASK, 0); 533 regmap_update_bits(cs42l43->regmap, CS42L43_DACCNFG2, CS42L43_HP_HPF_EN_MASK, 0); 534 regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1, 535 CS42L43_HSBIAS_MODE_MASK, 0); 536 regmap_update_bits(cs42l43->regmap, CS42L43_CTRL, 537 CS42L43_ADPTPWR_MODE_MASK, 0x4 << CS42L43_ADPTPWR_MODE_SHIFT); 538 regmap_update_bits(cs42l43->regmap, CS42L43_PGAVOL, 539 CS42L43_HP_DIG_VOL_RAMP_MASK | CS42L43_HP_ANA_VOL_RAMP_MASK, 0x6); 540 regmap_update_bits(cs42l43->regmap, CS42L43_DACCNFG1, 541 CS42L43_HP_MSTR_VOL_CTRL_EN_MASK, 0); 542 543 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 544 CS42L43_HS_CLAMP_DISABLE_MASK, CS42L43_HS_CLAMP_DISABLE_MASK); 545 546 regmap_update_bits(cs42l43->regmap, CS42L43_LOADDETENA, 547 CS42L43_HPLOAD_DET_EN_MASK, 548 CS42L43_HPLOAD_DET_EN_MASK); 549 550 snd_soc_dapm_mutex_unlock(snd_soc_component_get_dapm(priv->component)); 551 } 552 553 static void cs42l43_stop_load_detect(struct cs42l43_codec *priv) 554 { 555 struct cs42l43 *cs42l43 = priv->core; 556 557 dev_dbg(priv->dev, "Stop load detect\n"); 558 559 snd_soc_dapm_mutex_lock(snd_soc_component_get_dapm(priv->component)); 560 561 regmap_update_bits(cs42l43->regmap, CS42L43_LOADDETENA, 562 CS42L43_HPLOAD_DET_EN_MASK, 0); 563 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 564 CS42L43_HS_CLAMP_DISABLE_MASK, 0); 565 regmap_update_bits(cs42l43->regmap, CS42L43_DACCNFG1, 566 CS42L43_HP_MSTR_VOL_CTRL_EN_MASK, 567 CS42L43_HP_MSTR_VOL_CTRL_EN_MASK); 568 regmap_update_bits(cs42l43->regmap, CS42L43_PGAVOL, 569 CS42L43_HP_DIG_VOL_RAMP_MASK | CS42L43_HP_ANA_VOL_RAMP_MASK, 570 0x4 << CS42L43_HP_DIG_VOL_RAMP_SHIFT); 571 regmap_update_bits(cs42l43->regmap, CS42L43_CTRL, 572 CS42L43_ADPTPWR_MODE_MASK, 0x7 << CS42L43_ADPTPWR_MODE_SHIFT); 573 regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1, 574 CS42L43_HSBIAS_MODE_MASK, 0x1 << CS42L43_HSBIAS_MODE_SHIFT); 575 regmap_update_bits(cs42l43->regmap, CS42L43_DACCNFG2, 576 CS42L43_HP_HPF_EN_MASK, CS42L43_HP_HPF_EN_MASK); 577 578 regmap_update_bits(cs42l43->regmap, CS42L43_BLOCK_EN3, 579 CS42L43_ADC1_EN_MASK | CS42L43_ADC2_EN_MASK, 580 priv->adc_ena); 581 582 if (priv->hp_ena && !priv->hp_ilimited) { 583 unsigned long time_left; 584 585 reinit_completion(&priv->hp_startup); 586 587 regmap_update_bits(cs42l43->regmap, CS42L43_BLOCK_EN8, 588 CS42L43_HP_EN_MASK, priv->hp_ena); 589 590 time_left = wait_for_completion_timeout(&priv->hp_startup, 591 msecs_to_jiffies(CS42L43_HP_TIMEOUT_MS)); 592 if (!time_left) 593 dev_err(priv->dev, "Load detect HP restore timed out\n"); 594 } 595 596 priv->load_detect_running = false; 597 598 snd_soc_dapm_mutex_unlock(snd_soc_component_get_dapm(priv->component)); 599 } 600 601 static int cs42l43_run_load_detect(struct cs42l43_codec *priv, bool mic) 602 { 603 struct cs42l43 *cs42l43 = priv->core; 604 unsigned int val = 0; 605 unsigned long time_left; 606 607 reinit_completion(&priv->load_detect); 608 609 cs42l43_start_load_detect(priv); 610 time_left = wait_for_completion_timeout(&priv->load_detect, 611 msecs_to_jiffies(CS42L43_LOAD_TIMEOUT_MS)); 612 cs42l43_stop_load_detect(priv); 613 614 if (!time_left) 615 return -ETIMEDOUT; 616 617 regmap_read(cs42l43->regmap, CS42L43_LOADDETRESULTS, &val); 618 619 dev_dbg(priv->dev, "Headphone load detect: 0x%x\n", val); 620 621 /* Bail if jack removed, the load is irrelevant and likely invalid */ 622 if (!cs42l43_jack_present(priv)) 623 return -ENODEV; 624 625 if (mic) { 626 cs42l43_start_hs_bias(priv, false); 627 cs42l43_start_button_detect(priv); 628 629 return CS42L43_JACK_HEADSET; 630 } 631 632 switch (val & CS42L43_AMP3_RES_DET_MASK) { 633 case 0x0: // low impedance 634 case 0x1: // high impedance 635 return CS42L43_JACK_HEADPHONE; 636 case 0x2: // lineout 637 case 0x3: // Open circuit 638 return CS42L43_JACK_LINEOUT; 639 default: 640 return -EINVAL; 641 } 642 } 643 644 static int cs42l43_run_type_detect(struct cs42l43_codec *priv) 645 { 646 struct cs42l43 *cs42l43 = priv->core; 647 int timeout_ms = ((2 * priv->detect_us) / USEC_PER_MSEC) + 200; 648 unsigned int type = 0xff; 649 unsigned long time_left; 650 651 reinit_completion(&priv->type_detect); 652 653 regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CLAMP_CTRL, 654 CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_VAL_MASK, 655 CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_VAL_MASK); 656 657 cs42l43_start_hs_bias(priv, true); 658 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 659 CS42L43_HSDET_MODE_MASK, 0x3 << CS42L43_HSDET_MODE_SHIFT); 660 661 time_left = wait_for_completion_timeout(&priv->type_detect, 662 msecs_to_jiffies(timeout_ms)); 663 664 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 665 CS42L43_HSDET_MODE_MASK, 0x2 << CS42L43_HSDET_MODE_SHIFT); 666 cs42l43_stop_hs_bias(priv); 667 668 regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CLAMP_CTRL, 669 CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_VAL_MASK, 0); 670 671 if (!time_left) 672 return -ETIMEDOUT; 673 674 regmap_read(cs42l43->regmap, CS42L43_HS_STAT, &type); 675 676 dev_dbg(priv->dev, "Type detect: 0x%x\n", type); 677 678 /* Bail if jack removed, the type is irrelevant and likely invalid */ 679 if (!cs42l43_jack_present(priv)) 680 return -ENODEV; 681 682 switch (type & CS42L43_HSDET_TYPE_STS_MASK) { 683 case 0x0: // CTIA 684 case 0x1: // OMTP 685 return cs42l43_run_load_detect(priv, true); 686 case 0x2: // 3-pole 687 return cs42l43_run_load_detect(priv, false); 688 case 0x3: // Open-circuit 689 return CS42L43_JACK_EXTENSION; 690 default: 691 return -EINVAL; 692 } 693 } 694 695 static void cs42l43_clear_jack(struct cs42l43_codec *priv) 696 { 697 struct cs42l43 *cs42l43 = priv->core; 698 699 cs42l43_stop_button_detect(priv); 700 cs42l43_stop_hs_bias(priv); 701 702 regmap_update_bits(cs42l43->regmap, CS42L43_ADC_B_CTRL1, 703 CS42L43_PGA_WIDESWING_MODE_EN_MASK, 0); 704 regmap_update_bits(cs42l43->regmap, CS42L43_ADC_B_CTRL2, 705 CS42L43_PGA_WIDESWING_MODE_EN_MASK, 0); 706 regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CTRL, 707 CS42L43_JACK_STEREO_CONFIG_MASK, 0); 708 regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CLAMP_CTRL, 709 CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 710 CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK); 711 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 712 CS42L43_HSDET_MODE_MASK | CS42L43_HSDET_MANUAL_MODE_MASK, 713 0x2 << CS42L43_HSDET_MODE_SHIFT); 714 715 snd_soc_jack_report(priv->jack_hp, 0, 0xFFFF); 716 } 717 718 void cs42l43_tip_sense_work(struct work_struct *work) 719 { 720 struct cs42l43_codec *priv = container_of(work, struct cs42l43_codec, 721 tip_sense_work.work); 722 struct cs42l43 *cs42l43 = priv->core; 723 unsigned int sts = 0; 724 unsigned int tip, ring; 725 int ret, report; 726 727 ret = pm_runtime_resume_and_get(priv->dev); 728 if (ret) { 729 dev_err(priv->dev, "Failed to resume for tip work: %d\n", ret); 730 return; 731 } 732 733 mutex_lock(&priv->jack_lock); 734 735 regmap_read(cs42l43->regmap, CS42L43_TIP_RING_SENSE_INTERRUPT_STATUS, &sts); 736 737 dev_dbg(priv->dev, "Tip sense: 0x%x\n", sts); 738 739 tip = (sts >> CS42L43_TIPSENSE_PLUG_DB_STS_SHIFT) & CS42L43_JACK_PRESENT; 740 ring = (sts >> CS42L43_RINGSENSE_PLUG_DB_STS_SHIFT) & CS42L43_JACK_PRESENT; 741 742 if (tip == CS42L43_JACK_PRESENT) { 743 if (cs42l43->sdw && !priv->jack_present) { 744 priv->jack_present = true; 745 pm_runtime_get(priv->dev); 746 } 747 748 if (priv->use_ring_sense && ring == CS42L43_JACK_ABSENT) { 749 report = CS42L43_JACK_OPTICAL; 750 } else { 751 report = cs42l43_run_type_detect(priv); 752 if (report < 0) { 753 dev_err(priv->dev, "Jack detect failed: %d\n", report); 754 goto error; 755 } 756 } 757 758 snd_soc_jack_report(priv->jack_hp, report, report); 759 } else { 760 priv->jack_override = 0; 761 762 cs42l43_clear_jack(priv); 763 764 if (cs42l43->sdw && priv->jack_present) { 765 pm_runtime_put(priv->dev); 766 priv->jack_present = false; 767 } 768 } 769 770 error: 771 mutex_unlock(&priv->jack_lock); 772 773 priv->suspend_jack_debounce = false; 774 775 pm_runtime_put_autosuspend(priv->dev); 776 } 777 778 irqreturn_t cs42l43_tip_sense(int irq, void *data) 779 { 780 struct cs42l43_codec *priv = data; 781 unsigned int db_delay = priv->tip_debounce_ms; 782 783 cancel_delayed_work(&priv->bias_sense_timeout); 784 cancel_delayed_work(&priv->tip_sense_work); 785 cancel_delayed_work(&priv->button_press_work); 786 cancel_work(&priv->button_release_work); 787 788 // Ensure delay after suspend is long enough to avoid false detection 789 if (priv->suspend_jack_debounce) 790 db_delay += priv->tip_fall_db_ms + priv->tip_rise_db_ms; 791 792 queue_delayed_work(system_long_wq, &priv->tip_sense_work, 793 msecs_to_jiffies(db_delay)); 794 795 return IRQ_HANDLED; 796 } 797 798 enum cs42l43_raw_jack { 799 CS42L43_JACK_RAW_CTIA = 0, 800 CS42L43_JACK_RAW_OMTP, 801 CS42L43_JACK_RAW_HEADPHONE, 802 CS42L43_JACK_RAW_LINE_OUT, 803 CS42L43_JACK_RAW_LINE_IN, 804 CS42L43_JACK_RAW_MICROPHONE, 805 CS42L43_JACK_RAW_OPTICAL, 806 }; 807 808 #define CS42L43_JACK_3_POLE_SWITCHES ((0x2 << CS42L43_HSDET_MANUAL_MODE_SHIFT) | \ 809 CS42L43_AMP3_4_GNDREF_HS3_SEL_MASK | \ 810 CS42L43_AMP3_4_GNDREF_HS4_SEL_MASK | \ 811 CS42L43_HSBIAS_GNDREF_HS3_SEL_MASK | \ 812 CS42L43_HSBIAS_GNDREF_HS4_SEL_MASK | \ 813 CS42L43_HSGND_HS3_SEL_MASK | \ 814 CS42L43_HSGND_HS4_SEL_MASK) 815 816 static const struct cs42l43_jack_override_mode { 817 unsigned int hsdet_mode; 818 unsigned int mic_ctrl; 819 unsigned int clamp_ctrl; 820 int report; 821 } cs42l43_jack_override_modes[] = { 822 [CS42L43_JACK_RAW_CTIA] = { 823 .hsdet_mode = CS42L43_AMP3_4_GNDREF_HS3_SEL_MASK | 824 CS42L43_HSBIAS_GNDREF_HS3_SEL_MASK | 825 CS42L43_HSBIAS_OUT_HS4_SEL_MASK | 826 CS42L43_HSGND_HS3_SEL_MASK, 827 .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 828 .report = CS42L43_JACK_HEADSET, 829 }, 830 [CS42L43_JACK_RAW_OMTP] = { 831 .hsdet_mode = (0x1 << CS42L43_HSDET_MANUAL_MODE_SHIFT) | 832 CS42L43_AMP3_4_GNDREF_HS4_SEL_MASK | 833 CS42L43_HSBIAS_GNDREF_HS4_SEL_MASK | 834 CS42L43_HSBIAS_OUT_HS3_SEL_MASK | 835 CS42L43_HSGND_HS4_SEL_MASK, 836 .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 837 .report = CS42L43_JACK_HEADSET, 838 }, 839 [CS42L43_JACK_RAW_HEADPHONE] = { 840 .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES, 841 .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 842 .report = CS42L43_JACK_HEADPHONE, 843 }, 844 [CS42L43_JACK_RAW_LINE_OUT] = { 845 .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES, 846 .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 847 .report = CS42L43_JACK_LINEOUT, 848 }, 849 [CS42L43_JACK_RAW_LINE_IN] = { 850 .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES, 851 .mic_ctrl = 0x2 << CS42L43_JACK_STEREO_CONFIG_SHIFT, 852 .report = CS42L43_JACK_LINEIN, 853 }, 854 [CS42L43_JACK_RAW_MICROPHONE] = { 855 .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES, 856 .mic_ctrl = (0x3 << CS42L43_JACK_STEREO_CONFIG_SHIFT) | 857 CS42L43_HS1_BIAS_EN_MASK | CS42L43_HS2_BIAS_EN_MASK, 858 .report = CS42L43_JACK_LINEIN, 859 }, 860 [CS42L43_JACK_RAW_OPTICAL] = { 861 .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES, 862 .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 863 .report = CS42L43_JACK_OPTICAL, 864 }, 865 }; 866 867 static const char * const cs42l43_jack_text[] = { 868 "None", "CTIA", "OMTP", "Headphone", "Line-Out", 869 "Line-In", "Microphone", "Optical", 870 }; 871 872 static_assert(ARRAY_SIZE(cs42l43_jack_override_modes) == 873 ARRAY_SIZE(cs42l43_jack_text) - 1); 874 875 SOC_ENUM_SINGLE_VIRT_DECL(cs42l43_jack_enum, cs42l43_jack_text); 876 877 int cs42l43_jack_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 878 { 879 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 880 struct cs42l43_codec *priv = snd_soc_component_get_drvdata(component); 881 882 mutex_lock(&priv->jack_lock); 883 ucontrol->value.integer.value[0] = priv->jack_override; 884 mutex_unlock(&priv->jack_lock); 885 886 return 0; 887 } 888 889 int cs42l43_jack_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 890 { 891 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 892 struct cs42l43_codec *priv = snd_soc_component_get_drvdata(component); 893 struct cs42l43 *cs42l43 = priv->core; 894 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; 895 unsigned int override = ucontrol->value.integer.value[0]; 896 897 if (override >= e->items) 898 return -EINVAL; 899 900 mutex_lock(&priv->jack_lock); 901 902 if (!cs42l43_jack_present(priv)) { 903 mutex_unlock(&priv->jack_lock); 904 return -EBUSY; 905 } 906 907 if (override == priv->jack_override) { 908 mutex_unlock(&priv->jack_lock); 909 return 0; 910 } 911 912 priv->jack_override = override; 913 914 cs42l43_clear_jack(priv); 915 916 if (!override) { 917 queue_delayed_work(system_long_wq, &priv->tip_sense_work, 0); 918 } else { 919 override--; 920 921 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 922 CS42L43_HSDET_MODE_MASK | 923 CS42L43_HSDET_MANUAL_MODE_MASK | 924 CS42L43_AMP3_4_GNDREF_HS3_SEL_MASK | 925 CS42L43_AMP3_4_GNDREF_HS4_SEL_MASK | 926 CS42L43_HSBIAS_GNDREF_HS3_SEL_MASK | 927 CS42L43_HSBIAS_GNDREF_HS4_SEL_MASK | 928 CS42L43_HSBIAS_OUT_HS3_SEL_MASK | 929 CS42L43_HSBIAS_OUT_HS4_SEL_MASK | 930 CS42L43_HSGND_HS3_SEL_MASK | 931 CS42L43_HSGND_HS4_SEL_MASK, 932 cs42l43_jack_override_modes[override].hsdet_mode); 933 regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CTRL, 934 CS42L43_HS2_BIAS_EN_MASK | CS42L43_HS1_BIAS_EN_MASK | 935 CS42L43_JACK_STEREO_CONFIG_MASK, 936 cs42l43_jack_override_modes[override].mic_ctrl); 937 regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CLAMP_CTRL, 938 CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 939 cs42l43_jack_override_modes[override].clamp_ctrl); 940 941 switch (override) { 942 case CS42L43_JACK_RAW_CTIA: 943 case CS42L43_JACK_RAW_OMTP: 944 cs42l43_start_hs_bias(priv, false); 945 cs42l43_start_button_detect(priv); 946 break; 947 case CS42L43_JACK_RAW_LINE_IN: 948 regmap_update_bits(cs42l43->regmap, CS42L43_ADC_B_CTRL1, 949 CS42L43_PGA_WIDESWING_MODE_EN_MASK, 950 CS42L43_PGA_WIDESWING_MODE_EN_MASK); 951 regmap_update_bits(cs42l43->regmap, CS42L43_ADC_B_CTRL2, 952 CS42L43_PGA_WIDESWING_MODE_EN_MASK, 953 CS42L43_PGA_WIDESWING_MODE_EN_MASK); 954 break; 955 case CS42L43_JACK_RAW_MICROPHONE: 956 cs42l43_start_hs_bias(priv, false); 957 break; 958 default: 959 break; 960 } 961 962 snd_soc_jack_report(priv->jack_hp, 963 cs42l43_jack_override_modes[override].report, 964 cs42l43_jack_override_modes[override].report); 965 } 966 967 mutex_unlock(&priv->jack_lock); 968 969 return 1; 970 } 971