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_dfl_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_US 11000 365 #define CS42L43_BUTTON_COMB_MAX 512 366 #define CS42L43_BUTTON_ROUT 2210 367 368 irqreturn_t cs42l43_button_press(int irq, void *data) 369 { 370 struct cs42l43_codec *priv = data; 371 struct cs42l43 *cs42l43 = priv->core; 372 irqreturn_t iret = IRQ_NONE; 373 unsigned int buttons = 0; 374 unsigned int val = 0; 375 int i, ret; 376 377 ret = pm_runtime_resume_and_get(priv->dev); 378 if (ret) { 379 dev_err(priv->dev, "Failed to resume for button press: %d\n", ret); 380 return iret; 381 } 382 383 mutex_lock(&priv->jack_lock); 384 385 if (!priv->button_detect_running) { 386 dev_dbg(priv->dev, "Spurious button press IRQ\n"); 387 goto error; 388 } 389 390 // Wait for 2 full cycles of comb filter to ensure good reading 391 usleep_range(2 * CS42L43_BUTTON_COMB_US, 2 * CS42L43_BUTTON_COMB_US + 50); 392 393 regmap_read(cs42l43->regmap, CS42L43_DETECT_STATUS_1, &val); 394 395 /* Bail if jack removed, the button is irrelevant and likely invalid */ 396 if (!cs42l43_jack_present(priv)) { 397 dev_dbg(priv->dev, "Button ignored due to removal\n"); 398 goto error; 399 } 400 401 if (val & CS42L43_HSBIAS_CLAMP_STS_MASK) { 402 dev_dbg(priv->dev, "Button ignored due to bias sense\n"); 403 goto error; 404 } 405 406 val = (val & CS42L43_HSDET_DC_STS_MASK) >> CS42L43_HSDET_DC_STS_SHIFT; 407 val = ((CS42L43_BUTTON_COMB_MAX << 20) / (val + 1)) - (1 << 20); 408 if (val) 409 val = (CS42L43_BUTTON_ROUT << 20) / val; 410 else 411 val = UINT_MAX; 412 413 for (i = 0; i < CS42L43_N_BUTTONS; i++) { 414 if (val < priv->buttons[i]) { 415 buttons = SND_JACK_BTN_0 >> i; 416 dev_dbg(priv->dev, "Detected button %d at %d Ohms\n", i, val); 417 break; 418 } 419 } 420 421 if (!buttons) 422 dev_dbg(priv->dev, "Unrecognised button: %d Ohms\n", val); 423 424 snd_soc_jack_report(priv->jack_hp, buttons, CS42L43_JACK_BUTTONS); 425 426 iret = IRQ_HANDLED; 427 428 error: 429 mutex_unlock(&priv->jack_lock); 430 431 pm_runtime_put_autosuspend(priv->dev); 432 433 return iret; 434 } 435 436 irqreturn_t cs42l43_button_release(int irq, void *data) 437 { 438 struct cs42l43_codec *priv = data; 439 irqreturn_t iret = IRQ_NONE; 440 int ret; 441 442 ret = pm_runtime_resume_and_get(priv->dev); 443 if (ret) { 444 dev_err(priv->dev, "Failed to resume for button release: %d\n", ret); 445 return iret; 446 } 447 448 mutex_lock(&priv->jack_lock); 449 450 if (priv->button_detect_running) { 451 dev_dbg(priv->dev, "Button release IRQ\n"); 452 453 snd_soc_jack_report(priv->jack_hp, 0, CS42L43_JACK_BUTTONS); 454 455 iret = IRQ_HANDLED; 456 } else { 457 dev_dbg(priv->dev, "Spurious button release IRQ\n"); 458 } 459 460 mutex_unlock(&priv->jack_lock); 461 462 pm_runtime_put_autosuspend(priv->dev); 463 464 return iret; 465 } 466 467 void cs42l43_bias_sense_timeout(struct work_struct *work) 468 { 469 struct cs42l43_codec *priv = container_of(work, struct cs42l43_codec, 470 bias_sense_timeout.work); 471 struct cs42l43 *cs42l43 = priv->core; 472 int ret; 473 474 ret = pm_runtime_resume_and_get(priv->dev); 475 if (ret) { 476 dev_err(priv->dev, "Failed to resume for bias sense: %d\n", ret); 477 return; 478 } 479 480 mutex_lock(&priv->jack_lock); 481 482 if (cs42l43_jack_present(priv) && priv->button_detect_running) { 483 dev_dbg(priv->dev, "Bias sense timeout out, restore bias\n"); 484 485 regmap_update_bits(cs42l43->regmap, 486 CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL, 487 CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK, 0); 488 regmap_update_bits(cs42l43->regmap, 489 CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL, 490 CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK, 491 CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK); 492 } 493 494 mutex_unlock(&priv->jack_lock); 495 496 pm_runtime_put_autosuspend(priv->dev); 497 } 498 499 static const struct reg_sequence cs42l43_3pole_patch[] = { 500 { 0x4000, 0x00000055 }, 501 { 0x4000, 0x000000AA }, 502 { 0x17420, 0x8500F300 }, 503 { 0x17424, 0x36003E00 }, 504 { 0x4000, 0x00000000 }, 505 }; 506 507 static const struct reg_sequence cs42l43_4pole_patch[] = { 508 { 0x4000, 0x00000055 }, 509 { 0x4000, 0x000000AA }, 510 { 0x17420, 0x7800E600 }, 511 { 0x17424, 0x36003800 }, 512 { 0x4000, 0x00000000 }, 513 }; 514 515 static void cs42l43_start_load_detect(struct cs42l43_codec *priv, bool mic) 516 { 517 struct cs42l43 *cs42l43 = priv->core; 518 519 dev_dbg(priv->dev, "Start load detect\n"); 520 521 snd_soc_dapm_mutex_lock(snd_soc_component_to_dapm(priv->component)); 522 523 priv->load_detect_running = true; 524 525 if (priv->hp_ena && !priv->hp_ilimited) { 526 unsigned long time_left; 527 528 reinit_completion(&priv->hp_shutdown); 529 530 regmap_update_bits(cs42l43->regmap, CS42L43_BLOCK_EN8, 531 CS42L43_HP_EN_MASK, 0); 532 533 time_left = wait_for_completion_timeout(&priv->hp_shutdown, 534 msecs_to_jiffies(CS42L43_HP_TIMEOUT_MS)); 535 if (!time_left) 536 dev_err(priv->dev, "Load detect HP power down timed out\n"); 537 } 538 539 if (mic) 540 regmap_multi_reg_write_bypassed(cs42l43->regmap, 541 cs42l43_4pole_patch, 542 ARRAY_SIZE(cs42l43_4pole_patch)); 543 else 544 regmap_multi_reg_write_bypassed(cs42l43->regmap, 545 cs42l43_3pole_patch, 546 ARRAY_SIZE(cs42l43_3pole_patch)); 547 548 regmap_update_bits(cs42l43->regmap, CS42L43_BLOCK_EN3, 549 CS42L43_ADC1_EN_MASK | CS42L43_ADC2_EN_MASK, 0); 550 regmap_update_bits(cs42l43->regmap, CS42L43_DACCNFG2, CS42L43_HP_HPF_EN_MASK, 0); 551 regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1, 552 CS42L43_HSBIAS_MODE_MASK, 0); 553 regmap_update_bits(cs42l43->regmap, CS42L43_CTRL, 554 CS42L43_ADPTPWR_MODE_MASK, 0x4 << CS42L43_ADPTPWR_MODE_SHIFT); 555 regmap_update_bits(cs42l43->regmap, CS42L43_PGAVOL, 556 CS42L43_HP_DIG_VOL_RAMP_MASK | CS42L43_HP_ANA_VOL_RAMP_MASK, 0x6); 557 regmap_update_bits(cs42l43->regmap, CS42L43_DACCNFG1, 558 CS42L43_HP_MSTR_VOL_CTRL_EN_MASK, 0); 559 560 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 561 CS42L43_HS_CLAMP_DISABLE_MASK, CS42L43_HS_CLAMP_DISABLE_MASK); 562 563 regmap_update_bits(cs42l43->regmap, CS42L43_LOADDETENA, 564 CS42L43_HPLOAD_DET_EN_MASK, 565 CS42L43_HPLOAD_DET_EN_MASK); 566 567 snd_soc_dapm_mutex_unlock(snd_soc_component_to_dapm(priv->component)); 568 } 569 570 static void cs42l43_stop_load_detect(struct cs42l43_codec *priv) 571 { 572 struct cs42l43 *cs42l43 = priv->core; 573 574 dev_dbg(priv->dev, "Stop load detect\n"); 575 576 snd_soc_dapm_mutex_lock(snd_soc_component_to_dapm(priv->component)); 577 578 regmap_update_bits(cs42l43->regmap, CS42L43_LOADDETENA, 579 CS42L43_HPLOAD_DET_EN_MASK, 0); 580 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 581 CS42L43_HS_CLAMP_DISABLE_MASK, 0); 582 regmap_update_bits(cs42l43->regmap, CS42L43_DACCNFG1, 583 CS42L43_HP_MSTR_VOL_CTRL_EN_MASK, 584 CS42L43_HP_MSTR_VOL_CTRL_EN_MASK); 585 regmap_update_bits(cs42l43->regmap, CS42L43_PGAVOL, 586 CS42L43_HP_DIG_VOL_RAMP_MASK | CS42L43_HP_ANA_VOL_RAMP_MASK, 587 0x4 << CS42L43_HP_DIG_VOL_RAMP_SHIFT); 588 regmap_update_bits(cs42l43->regmap, CS42L43_CTRL, 589 CS42L43_ADPTPWR_MODE_MASK, 0x7 << CS42L43_ADPTPWR_MODE_SHIFT); 590 regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1, 591 CS42L43_HSBIAS_MODE_MASK, 0x1 << CS42L43_HSBIAS_MODE_SHIFT); 592 regmap_update_bits(cs42l43->regmap, CS42L43_DACCNFG2, 593 CS42L43_HP_HPF_EN_MASK, CS42L43_HP_HPF_EN_MASK); 594 595 regmap_update_bits(cs42l43->regmap, CS42L43_BLOCK_EN3, 596 CS42L43_ADC1_EN_MASK | CS42L43_ADC2_EN_MASK, 597 priv->adc_ena); 598 599 if (priv->hp_ena && !priv->hp_ilimited) { 600 unsigned long time_left; 601 602 reinit_completion(&priv->hp_startup); 603 604 regmap_update_bits(cs42l43->regmap, CS42L43_BLOCK_EN8, 605 CS42L43_HP_EN_MASK, priv->hp_ena); 606 607 time_left = wait_for_completion_timeout(&priv->hp_startup, 608 msecs_to_jiffies(CS42L43_HP_TIMEOUT_MS)); 609 if (!time_left) 610 dev_err(priv->dev, "Load detect HP restore timed out\n"); 611 } 612 613 priv->load_detect_running = false; 614 615 snd_soc_dapm_mutex_unlock(snd_soc_component_to_dapm(priv->component)); 616 } 617 618 static int cs42l43_run_load_detect(struct cs42l43_codec *priv, bool mic) 619 { 620 struct cs42l43 *cs42l43 = priv->core; 621 unsigned int val = 0; 622 unsigned long time_left; 623 624 reinit_completion(&priv->load_detect); 625 626 cs42l43_start_load_detect(priv, mic); 627 time_left = wait_for_completion_timeout(&priv->load_detect, 628 msecs_to_jiffies(CS42L43_LOAD_TIMEOUT_MS)); 629 cs42l43_stop_load_detect(priv); 630 631 if (!time_left) 632 return -ETIMEDOUT; 633 634 regmap_read(cs42l43->regmap, CS42L43_LOADDETRESULTS, &val); 635 636 dev_dbg(priv->dev, "Headphone load detect: 0x%x\n", val); 637 638 /* Bail if jack removed, the load is irrelevant and likely invalid */ 639 if (!cs42l43_jack_present(priv)) 640 return -ENODEV; 641 642 if (mic) { 643 cs42l43_start_hs_bias(priv, false); 644 cs42l43_start_button_detect(priv); 645 646 return CS42L43_JACK_HEADSET; 647 } 648 649 switch (val & CS42L43_AMP3_RES_DET_MASK) { 650 case 0x0: // < 22 Ohm impedance 651 case 0x1: // < 150 Ohm impedance 652 case 0x2: // < 1000 Ohm impedance 653 return CS42L43_JACK_HEADPHONE; 654 case 0x3: // > 1000 Ohm impedance 655 return CS42L43_JACK_LINEOUT; 656 default: 657 return -EINVAL; 658 } 659 } 660 661 static int cs42l43_run_type_detect(struct cs42l43_codec *priv) 662 { 663 struct cs42l43 *cs42l43 = priv->core; 664 int timeout_ms = ((2 * priv->detect_us) / USEC_PER_MSEC) + 200; 665 unsigned int type = 0xff; 666 unsigned long time_left; 667 668 reinit_completion(&priv->type_detect); 669 670 regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CLAMP_CTRL, 671 CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_VAL_MASK, 672 CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_VAL_MASK); 673 674 cs42l43_start_hs_bias(priv, true); 675 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 676 CS42L43_HSDET_MODE_MASK, 0x3 << CS42L43_HSDET_MODE_SHIFT); 677 678 time_left = wait_for_completion_timeout(&priv->type_detect, 679 msecs_to_jiffies(timeout_ms)); 680 681 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 682 CS42L43_HSDET_MODE_MASK, 0x2 << CS42L43_HSDET_MODE_SHIFT); 683 cs42l43_stop_hs_bias(priv); 684 685 regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CLAMP_CTRL, 686 CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_VAL_MASK, 0); 687 688 if (!time_left) 689 return -ETIMEDOUT; 690 691 regmap_read(cs42l43->regmap, CS42L43_HS_STAT, &type); 692 693 dev_dbg(priv->dev, "Type detect: 0x%x\n", type); 694 695 /* Bail if jack removed, the type is irrelevant and likely invalid */ 696 if (!cs42l43_jack_present(priv)) 697 return -ENODEV; 698 699 switch (type & CS42L43_HSDET_TYPE_STS_MASK) { 700 case 0x0: // CTIA 701 case 0x1: // OMTP 702 return cs42l43_run_load_detect(priv, true); 703 case 0x2: // 3-pole 704 return cs42l43_run_load_detect(priv, false); 705 case 0x3: // Open-circuit 706 return CS42L43_JACK_EXTENSION; 707 default: 708 return -EINVAL; 709 } 710 } 711 712 void cs42l43_clear_jack(struct cs42l43_codec *priv) 713 { 714 struct cs42l43 *cs42l43 = priv->core; 715 716 cs42l43_stop_button_detect(priv); 717 cs42l43_stop_hs_bias(priv); 718 719 regmap_update_bits(cs42l43->regmap, CS42L43_ADC_B_CTRL1, 720 CS42L43_PGA_WIDESWING_MODE_EN_MASK, 0); 721 regmap_update_bits(cs42l43->regmap, CS42L43_ADC_B_CTRL2, 722 CS42L43_PGA_WIDESWING_MODE_EN_MASK, 0); 723 regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CTRL, 724 CS42L43_JACK_STEREO_CONFIG_MASK, 0); 725 regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CLAMP_CTRL, 726 CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 727 CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK); 728 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 729 CS42L43_HSDET_MODE_MASK | CS42L43_HSDET_MANUAL_MODE_MASK, 730 0x2 << CS42L43_HSDET_MODE_SHIFT); 731 } 732 733 void cs42l43_tip_sense_work(struct work_struct *work) 734 { 735 struct cs42l43_codec *priv = container_of(work, struct cs42l43_codec, 736 tip_sense_work.work); 737 struct cs42l43 *cs42l43 = priv->core; 738 unsigned int sts = 0; 739 unsigned int tip, ring; 740 int ret, report; 741 742 ret = pm_runtime_resume_and_get(priv->dev); 743 if (ret) { 744 dev_err(priv->dev, "Failed to resume for tip work: %d\n", ret); 745 return; 746 } 747 748 mutex_lock(&priv->jack_lock); 749 750 regmap_read(cs42l43->regmap, CS42L43_TIP_RING_SENSE_INTERRUPT_STATUS, &sts); 751 752 dev_dbg(priv->dev, "Tip sense: 0x%x\n", sts); 753 754 tip = (sts >> CS42L43_TIPSENSE_PLUG_DB_STS_SHIFT) & CS42L43_JACK_PRESENT; 755 ring = (sts >> CS42L43_RINGSENSE_PLUG_DB_STS_SHIFT) & CS42L43_JACK_PRESENT; 756 757 if (tip == CS42L43_JACK_PRESENT) { 758 if (cs42l43->sdw && !priv->jack_present) { 759 priv->jack_present = true; 760 pm_runtime_get(priv->dev); 761 } 762 763 if (priv->use_ring_sense && ring == CS42L43_JACK_ABSENT) { 764 report = CS42L43_JACK_OPTICAL; 765 } else { 766 report = cs42l43_run_type_detect(priv); 767 if (report < 0) { 768 dev_err(priv->dev, "Jack detect failed: %d\n", report); 769 goto error; 770 } 771 } 772 773 snd_soc_jack_report(priv->jack_hp, report, report); 774 } else { 775 priv->jack_override = 0; 776 777 cs42l43_clear_jack(priv); 778 779 snd_soc_jack_report(priv->jack_hp, 0, 0xFFFF); 780 781 if (cs42l43->sdw && priv->jack_present) { 782 pm_runtime_put(priv->dev); 783 priv->jack_present = false; 784 } 785 } 786 787 error: 788 mutex_unlock(&priv->jack_lock); 789 790 priv->suspend_jack_debounce = false; 791 792 pm_runtime_put_autosuspend(priv->dev); 793 } 794 795 irqreturn_t cs42l43_tip_sense(int irq, void *data) 796 { 797 struct cs42l43_codec *priv = data; 798 unsigned int db_delay = priv->tip_debounce_ms; 799 800 cancel_delayed_work(&priv->bias_sense_timeout); 801 cancel_delayed_work(&priv->tip_sense_work); 802 803 // Ensure delay after suspend is long enough to avoid false detection 804 if (priv->suspend_jack_debounce) 805 db_delay += priv->tip_fall_db_ms + priv->tip_rise_db_ms; 806 807 queue_delayed_work(system_long_wq, &priv->tip_sense_work, 808 msecs_to_jiffies(db_delay)); 809 810 return IRQ_HANDLED; 811 } 812 813 enum cs42l43_raw_jack { 814 CS42L43_JACK_RAW_CTIA = 0, 815 CS42L43_JACK_RAW_OMTP, 816 CS42L43_JACK_RAW_HEADPHONE, 817 CS42L43_JACK_RAW_LINE_OUT, 818 CS42L43_JACK_RAW_LINE_IN, 819 CS42L43_JACK_RAW_MICROPHONE, 820 CS42L43_JACK_RAW_OPTICAL, 821 }; 822 823 #define CS42L43_JACK_3_POLE_SWITCHES ((0x2 << CS42L43_HSDET_MANUAL_MODE_SHIFT) | \ 824 CS42L43_AMP3_4_GNDREF_HS3_SEL_MASK | \ 825 CS42L43_AMP3_4_GNDREF_HS4_SEL_MASK | \ 826 CS42L43_HSBIAS_GNDREF_HS3_SEL_MASK | \ 827 CS42L43_HSBIAS_GNDREF_HS4_SEL_MASK | \ 828 CS42L43_HSGND_HS3_SEL_MASK | \ 829 CS42L43_HSGND_HS4_SEL_MASK) 830 831 static const struct cs42l43_jack_override_mode { 832 unsigned int hsdet_mode; 833 unsigned int mic_ctrl; 834 unsigned int clamp_ctrl; 835 int report; 836 } cs42l43_jack_override_modes[] = { 837 [CS42L43_JACK_RAW_CTIA] = { 838 .hsdet_mode = CS42L43_AMP3_4_GNDREF_HS3_SEL_MASK | 839 CS42L43_HSBIAS_GNDREF_HS3_SEL_MASK | 840 CS42L43_HSBIAS_OUT_HS4_SEL_MASK | 841 CS42L43_HSGND_HS3_SEL_MASK, 842 .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 843 .report = CS42L43_JACK_HEADSET, 844 }, 845 [CS42L43_JACK_RAW_OMTP] = { 846 .hsdet_mode = (0x1 << CS42L43_HSDET_MANUAL_MODE_SHIFT) | 847 CS42L43_AMP3_4_GNDREF_HS4_SEL_MASK | 848 CS42L43_HSBIAS_GNDREF_HS4_SEL_MASK | 849 CS42L43_HSBIAS_OUT_HS3_SEL_MASK | 850 CS42L43_HSGND_HS4_SEL_MASK, 851 .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 852 .report = CS42L43_JACK_HEADSET, 853 }, 854 [CS42L43_JACK_RAW_HEADPHONE] = { 855 .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES, 856 .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 857 .report = CS42L43_JACK_HEADPHONE, 858 }, 859 [CS42L43_JACK_RAW_LINE_OUT] = { 860 .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES, 861 .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 862 .report = CS42L43_JACK_LINEOUT, 863 }, 864 [CS42L43_JACK_RAW_LINE_IN] = { 865 .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES, 866 .mic_ctrl = 0x2 << CS42L43_JACK_STEREO_CONFIG_SHIFT, 867 .report = CS42L43_JACK_LINEIN, 868 }, 869 [CS42L43_JACK_RAW_MICROPHONE] = { 870 .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES, 871 .mic_ctrl = (0x3 << CS42L43_JACK_STEREO_CONFIG_SHIFT) | 872 CS42L43_HS1_BIAS_EN_MASK | CS42L43_HS2_BIAS_EN_MASK, 873 .report = CS42L43_JACK_LINEIN, 874 }, 875 [CS42L43_JACK_RAW_OPTICAL] = { 876 .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES, 877 .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 878 .report = CS42L43_JACK_OPTICAL, 879 }, 880 }; 881 882 static const char * const cs42l43_jack_text[] = { 883 "None", "CTIA", "OMTP", "Headphone", "Line-Out", 884 "Line-In", "Microphone", "Optical", 885 }; 886 887 static_assert(ARRAY_SIZE(cs42l43_jack_override_modes) == 888 ARRAY_SIZE(cs42l43_jack_text) - 1); 889 890 SOC_ENUM_SINGLE_VIRT_DECL(cs42l43_jack_enum, cs42l43_jack_text); 891 892 int cs42l43_jack_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 893 { 894 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 895 struct cs42l43_codec *priv = snd_soc_component_get_drvdata(component); 896 897 mutex_lock(&priv->jack_lock); 898 ucontrol->value.integer.value[0] = priv->jack_override; 899 mutex_unlock(&priv->jack_lock); 900 901 return 0; 902 } 903 904 int cs42l43_jack_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 905 { 906 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 907 struct cs42l43_codec *priv = snd_soc_component_get_drvdata(component); 908 struct cs42l43 *cs42l43 = priv->core; 909 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; 910 unsigned int override = ucontrol->value.integer.value[0]; 911 912 if (override >= e->items) 913 return -EINVAL; 914 915 mutex_lock(&priv->jack_lock); 916 917 if (!cs42l43_jack_present(priv)) { 918 mutex_unlock(&priv->jack_lock); 919 return -EBUSY; 920 } 921 922 if (override == priv->jack_override) { 923 mutex_unlock(&priv->jack_lock); 924 return 0; 925 } 926 927 priv->jack_override = override; 928 929 cs42l43_clear_jack(priv); 930 931 snd_soc_jack_report(priv->jack_hp, 0, 0xFFFF); 932 933 if (!override) { 934 queue_delayed_work(system_long_wq, &priv->tip_sense_work, 0); 935 } else { 936 override--; 937 938 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 939 CS42L43_HSDET_MODE_MASK | 940 CS42L43_HSDET_MANUAL_MODE_MASK | 941 CS42L43_AMP3_4_GNDREF_HS3_SEL_MASK | 942 CS42L43_AMP3_4_GNDREF_HS4_SEL_MASK | 943 CS42L43_HSBIAS_GNDREF_HS3_SEL_MASK | 944 CS42L43_HSBIAS_GNDREF_HS4_SEL_MASK | 945 CS42L43_HSBIAS_OUT_HS3_SEL_MASK | 946 CS42L43_HSBIAS_OUT_HS4_SEL_MASK | 947 CS42L43_HSGND_HS3_SEL_MASK | 948 CS42L43_HSGND_HS4_SEL_MASK, 949 cs42l43_jack_override_modes[override].hsdet_mode); 950 regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CTRL, 951 CS42L43_HS2_BIAS_EN_MASK | CS42L43_HS1_BIAS_EN_MASK | 952 CS42L43_JACK_STEREO_CONFIG_MASK, 953 cs42l43_jack_override_modes[override].mic_ctrl); 954 regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CLAMP_CTRL, 955 CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 956 cs42l43_jack_override_modes[override].clamp_ctrl); 957 958 switch (override) { 959 case CS42L43_JACK_RAW_CTIA: 960 case CS42L43_JACK_RAW_OMTP: 961 cs42l43_start_hs_bias(priv, false); 962 cs42l43_start_button_detect(priv); 963 break; 964 case CS42L43_JACK_RAW_LINE_IN: 965 regmap_update_bits(cs42l43->regmap, CS42L43_ADC_B_CTRL1, 966 CS42L43_PGA_WIDESWING_MODE_EN_MASK, 967 CS42L43_PGA_WIDESWING_MODE_EN_MASK); 968 regmap_update_bits(cs42l43->regmap, CS42L43_ADC_B_CTRL2, 969 CS42L43_PGA_WIDESWING_MODE_EN_MASK, 970 CS42L43_PGA_WIDESWING_MODE_EN_MASK); 971 break; 972 case CS42L43_JACK_RAW_MICROPHONE: 973 cs42l43_start_hs_bias(priv, false); 974 break; 975 default: 976 break; 977 } 978 979 snd_soc_jack_report(priv->jack_hp, 980 cs42l43_jack_override_modes[override].report, 981 cs42l43_jack_override_modes[override].report); 982 } 983 984 mutex_unlock(&priv->jack_lock); 985 986 return 1; 987 } 988