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_MICROPHONE (SND_JACK_MECHANICAL | SND_JACK_MICROPHONE) 314 #define CS42L43_JACK_HEADPHONE (SND_JACK_MECHANICAL | SND_JACK_HEADPHONE) 315 #define CS42L43_JACK_HEADSET (SND_JACK_MECHANICAL | SND_JACK_HEADSET) 316 #define CS42L43_JACK_LINEOUT (SND_JACK_MECHANICAL | SND_JACK_LINEOUT) 317 #define CS42L43_JACK_LINEIN (SND_JACK_MECHANICAL | SND_JACK_LINEIN) 318 #define CS42L43_JACK_EXTENSION (SND_JACK_MECHANICAL) 319 #define CS42L43_JACK_BUTTONS (SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2 | \ 320 SND_JACK_BTN_3 | SND_JACK_BTN_4 | SND_JACK_BTN_5) 321 322 static inline bool cs42l43_jack_present(struct cs42l43_codec *priv) 323 { 324 struct cs42l43 *cs42l43 = priv->core; 325 unsigned int sts = 0; 326 327 regmap_read(cs42l43->regmap, CS42L43_TIP_RING_SENSE_INTERRUPT_STATUS, &sts); 328 329 sts = (sts >> CS42L43_TIPSENSE_PLUG_DB_STS_SHIFT) & CS42L43_JACK_PRESENT; 330 331 return sts == CS42L43_JACK_PRESENT; 332 } 333 334 static void cs42l43_start_button_detect(struct cs42l43_codec *priv) 335 { 336 struct cs42l43 *cs42l43 = priv->core; 337 unsigned int val = 0x3 << CS42L43_BUTTON_DETECT_MODE_SHIFT; 338 339 dev_dbg(priv->dev, "Start button detect\n"); 340 341 priv->button_detect_running = true; 342 343 if (priv->bias_low) 344 val = 0x1 << CS42L43_BUTTON_DETECT_MODE_SHIFT; 345 346 regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1, 347 CS42L43_BUTTON_DETECT_MODE_MASK | 348 CS42L43_MIC_LVL_DET_DISABLE_MASK, val); 349 } 350 351 static void cs42l43_stop_button_detect(struct cs42l43_codec *priv) 352 { 353 struct cs42l43 *cs42l43 = priv->core; 354 355 dev_dbg(priv->dev, "Stop button detect\n"); 356 357 regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1, 358 CS42L43_BUTTON_DETECT_MODE_MASK | 359 CS42L43_MIC_LVL_DET_DISABLE_MASK, 360 CS42L43_MIC_LVL_DET_DISABLE_MASK); 361 362 priv->button_detect_running = false; 363 } 364 365 #define CS42L43_BUTTON_COMB_US 11000 366 #define CS42L43_BUTTON_COMB_MAX 512 367 #define CS42L43_BUTTON_ROUT 2210 368 369 irqreturn_t cs42l43_button_press(int irq, void *data) 370 { 371 struct cs42l43_codec *priv = data; 372 struct cs42l43 *cs42l43 = priv->core; 373 irqreturn_t iret = IRQ_NONE; 374 unsigned int buttons = 0; 375 unsigned int val = 0; 376 int i, ret; 377 378 ret = pm_runtime_resume_and_get(priv->dev); 379 if (ret) { 380 dev_err(priv->dev, "Failed to resume for button press: %d\n", ret); 381 return iret; 382 } 383 384 mutex_lock(&priv->jack_lock); 385 386 if (!priv->button_detect_running) { 387 dev_dbg(priv->dev, "Spurious button press IRQ\n"); 388 goto error; 389 } 390 391 // Wait for 2 full cycles of comb filter to ensure good reading 392 usleep_range(2 * CS42L43_BUTTON_COMB_US, 2 * CS42L43_BUTTON_COMB_US + 50); 393 394 regmap_read(cs42l43->regmap, CS42L43_DETECT_STATUS_1, &val); 395 396 /* Bail if jack removed, the button is irrelevant and likely invalid */ 397 if (!cs42l43_jack_present(priv)) { 398 dev_dbg(priv->dev, "Button ignored due to removal\n"); 399 goto error; 400 } 401 402 if (val & CS42L43_HSBIAS_CLAMP_STS_MASK) { 403 dev_dbg(priv->dev, "Button ignored due to bias sense\n"); 404 goto error; 405 } 406 407 val = (val & CS42L43_HSDET_DC_STS_MASK) >> CS42L43_HSDET_DC_STS_SHIFT; 408 val = ((CS42L43_BUTTON_COMB_MAX << 20) / (val + 1)) - (1 << 20); 409 if (val) 410 val = (CS42L43_BUTTON_ROUT << 20) / val; 411 else 412 val = UINT_MAX; 413 414 for (i = 0; i < CS42L43_N_BUTTONS; i++) { 415 if (val < priv->buttons[i]) { 416 buttons = SND_JACK_BTN_0 >> i; 417 dev_dbg(priv->dev, "Detected button %d at %d Ohms\n", i, val); 418 break; 419 } 420 } 421 422 if (!buttons) 423 dev_dbg(priv->dev, "Unrecognised button: %d Ohms\n", val); 424 425 snd_soc_jack_report(priv->jack_hp, buttons, CS42L43_JACK_BUTTONS); 426 427 iret = IRQ_HANDLED; 428 429 error: 430 mutex_unlock(&priv->jack_lock); 431 432 pm_runtime_put_autosuspend(priv->dev); 433 434 return iret; 435 } 436 437 irqreturn_t cs42l43_button_release(int irq, void *data) 438 { 439 struct cs42l43_codec *priv = data; 440 irqreturn_t iret = IRQ_NONE; 441 int ret; 442 443 ret = pm_runtime_resume_and_get(priv->dev); 444 if (ret) { 445 dev_err(priv->dev, "Failed to resume for button release: %d\n", ret); 446 return iret; 447 } 448 449 mutex_lock(&priv->jack_lock); 450 451 if (priv->button_detect_running) { 452 dev_dbg(priv->dev, "Button release IRQ\n"); 453 454 snd_soc_jack_report(priv->jack_hp, 0, CS42L43_JACK_BUTTONS); 455 456 iret = IRQ_HANDLED; 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 return iret; 466 } 467 468 void cs42l43_bias_sense_timeout(struct work_struct *work) 469 { 470 struct cs42l43_codec *priv = container_of(work, struct cs42l43_codec, 471 bias_sense_timeout.work); 472 struct cs42l43 *cs42l43 = priv->core; 473 int ret; 474 475 ret = pm_runtime_resume_and_get(priv->dev); 476 if (ret) { 477 dev_err(priv->dev, "Failed to resume for bias sense: %d\n", ret); 478 return; 479 } 480 481 mutex_lock(&priv->jack_lock); 482 483 if (cs42l43_jack_present(priv) && priv->button_detect_running) { 484 dev_dbg(priv->dev, "Bias sense timeout out, restore bias\n"); 485 486 regmap_update_bits(cs42l43->regmap, 487 CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL, 488 CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK, 0); 489 regmap_update_bits(cs42l43->regmap, 490 CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL, 491 CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK, 492 CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK); 493 } 494 495 mutex_unlock(&priv->jack_lock); 496 497 pm_runtime_put_autosuspend(priv->dev); 498 } 499 500 static const struct reg_sequence cs42l43_3pole_patch[] = { 501 { 0x4000, 0x00000055 }, 502 { 0x4000, 0x000000AA }, 503 { 0x17420, 0x8500F300 }, 504 { 0x17424, 0x36003E00 }, 505 { 0x4000, 0x00000000 }, 506 }; 507 508 static const struct reg_sequence cs42l43_4pole_patch[] = { 509 { 0x4000, 0x00000055 }, 510 { 0x4000, 0x000000AA }, 511 { 0x17420, 0x7800E600 }, 512 { 0x17424, 0x36003800 }, 513 { 0x4000, 0x00000000 }, 514 }; 515 516 static void cs42l43_start_load_detect(struct cs42l43_codec *priv, bool mic) 517 { 518 struct cs42l43 *cs42l43 = priv->core; 519 520 dev_dbg(priv->dev, "Start load detect\n"); 521 522 snd_soc_dapm_mutex_lock(snd_soc_component_to_dapm(priv->component)); 523 524 priv->load_detect_running = true; 525 526 if (priv->hp_ena && !priv->hp_ilimited) { 527 unsigned long time_left; 528 529 reinit_completion(&priv->hp_shutdown); 530 531 regmap_update_bits(cs42l43->regmap, CS42L43_BLOCK_EN8, 532 CS42L43_HP_EN_MASK, 0); 533 534 time_left = wait_for_completion_timeout(&priv->hp_shutdown, 535 msecs_to_jiffies(CS42L43_HP_TIMEOUT_MS)); 536 if (!time_left) 537 dev_err(priv->dev, "Load detect HP power down timed out\n"); 538 } 539 540 if (mic) 541 regmap_multi_reg_write_bypassed(cs42l43->regmap, 542 cs42l43_4pole_patch, 543 ARRAY_SIZE(cs42l43_4pole_patch)); 544 else 545 regmap_multi_reg_write_bypassed(cs42l43->regmap, 546 cs42l43_3pole_patch, 547 ARRAY_SIZE(cs42l43_3pole_patch)); 548 549 regmap_update_bits(cs42l43->regmap, CS42L43_BLOCK_EN3, 550 CS42L43_ADC1_EN_MASK | CS42L43_ADC2_EN_MASK, 0); 551 regmap_update_bits(cs42l43->regmap, CS42L43_DACCNFG2, CS42L43_HP_HPF_EN_MASK, 0); 552 regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1, 553 CS42L43_HSBIAS_MODE_MASK, 0); 554 regmap_update_bits(cs42l43->regmap, CS42L43_CTRL, 555 CS42L43_ADPTPWR_MODE_MASK, 0x4 << CS42L43_ADPTPWR_MODE_SHIFT); 556 regmap_update_bits(cs42l43->regmap, CS42L43_PGAVOL, 557 CS42L43_HP_DIG_VOL_RAMP_MASK | CS42L43_HP_ANA_VOL_RAMP_MASK, 0x6); 558 regmap_update_bits(cs42l43->regmap, CS42L43_DACCNFG1, 559 CS42L43_HP_MSTR_VOL_CTRL_EN_MASK, 0); 560 561 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 562 CS42L43_HS_CLAMP_DISABLE_MASK, CS42L43_HS_CLAMP_DISABLE_MASK); 563 564 regmap_update_bits(cs42l43->regmap, CS42L43_LOADDETENA, 565 CS42L43_HPLOAD_DET_EN_MASK, 566 CS42L43_HPLOAD_DET_EN_MASK); 567 568 snd_soc_dapm_mutex_unlock(snd_soc_component_to_dapm(priv->component)); 569 } 570 571 static void cs42l43_stop_load_detect(struct cs42l43_codec *priv) 572 { 573 struct cs42l43 *cs42l43 = priv->core; 574 575 dev_dbg(priv->dev, "Stop load detect\n"); 576 577 snd_soc_dapm_mutex_lock(snd_soc_component_to_dapm(priv->component)); 578 579 regmap_update_bits(cs42l43->regmap, CS42L43_LOADDETENA, 580 CS42L43_HPLOAD_DET_EN_MASK, 0); 581 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 582 CS42L43_HS_CLAMP_DISABLE_MASK, 0); 583 regmap_update_bits(cs42l43->regmap, CS42L43_DACCNFG1, 584 CS42L43_HP_MSTR_VOL_CTRL_EN_MASK, 585 CS42L43_HP_MSTR_VOL_CTRL_EN_MASK); 586 regmap_update_bits(cs42l43->regmap, CS42L43_PGAVOL, 587 CS42L43_HP_DIG_VOL_RAMP_MASK | CS42L43_HP_ANA_VOL_RAMP_MASK, 588 0x4 << CS42L43_HP_DIG_VOL_RAMP_SHIFT); 589 regmap_update_bits(cs42l43->regmap, CS42L43_CTRL, 590 CS42L43_ADPTPWR_MODE_MASK, 0x7 << CS42L43_ADPTPWR_MODE_SHIFT); 591 regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1, 592 CS42L43_HSBIAS_MODE_MASK, 0x1 << CS42L43_HSBIAS_MODE_SHIFT); 593 regmap_update_bits(cs42l43->regmap, CS42L43_DACCNFG2, 594 CS42L43_HP_HPF_EN_MASK, CS42L43_HP_HPF_EN_MASK); 595 596 regmap_update_bits(cs42l43->regmap, CS42L43_BLOCK_EN3, 597 CS42L43_ADC1_EN_MASK | CS42L43_ADC2_EN_MASK, 598 priv->adc_ena); 599 600 if (priv->hp_ena && !priv->hp_ilimited) { 601 unsigned long time_left; 602 603 reinit_completion(&priv->hp_startup); 604 605 regmap_update_bits(cs42l43->regmap, CS42L43_BLOCK_EN8, 606 CS42L43_HP_EN_MASK, priv->hp_ena); 607 608 time_left = wait_for_completion_timeout(&priv->hp_startup, 609 msecs_to_jiffies(CS42L43_HP_TIMEOUT_MS)); 610 if (!time_left) 611 dev_err(priv->dev, "Load detect HP restore timed out\n"); 612 } 613 614 priv->load_detect_running = false; 615 616 snd_soc_dapm_mutex_unlock(snd_soc_component_to_dapm(priv->component)); 617 } 618 619 static int cs42l43_run_load_detect(struct cs42l43_codec *priv, bool mic) 620 { 621 struct cs42l43 *cs42l43 = priv->core; 622 unsigned int val = 0; 623 unsigned long time_left; 624 625 reinit_completion(&priv->load_detect); 626 627 cs42l43_start_load_detect(priv, mic); 628 time_left = wait_for_completion_timeout(&priv->load_detect, 629 msecs_to_jiffies(CS42L43_LOAD_TIMEOUT_MS)); 630 cs42l43_stop_load_detect(priv); 631 632 if (!time_left) 633 return -ETIMEDOUT; 634 635 regmap_read(cs42l43->regmap, CS42L43_LOADDETRESULTS, &val); 636 637 dev_dbg(priv->dev, "Headphone load detect: 0x%x\n", val); 638 639 /* Bail if jack removed, the load is irrelevant and likely invalid */ 640 if (!cs42l43_jack_present(priv)) 641 return -ENODEV; 642 643 if (mic) { 644 cs42l43_start_hs_bias(priv, false); 645 cs42l43_start_button_detect(priv); 646 647 return CS42L43_JACK_HEADSET; 648 } 649 650 switch (val & CS42L43_AMP3_RES_DET_MASK) { 651 case 0x0: // < 22 Ohm impedance 652 case 0x1: // < 150 Ohm impedance 653 case 0x2: // < 1000 Ohm impedance 654 return CS42L43_JACK_HEADPHONE; 655 case 0x3: // > 1000 Ohm impedance 656 return CS42L43_JACK_LINEOUT; 657 default: 658 return -EINVAL; 659 } 660 } 661 662 static int cs42l43_run_type_detect(struct cs42l43_codec *priv) 663 { 664 struct cs42l43 *cs42l43 = priv->core; 665 int timeout_ms = ((2 * priv->detect_us) / USEC_PER_MSEC) + 200; 666 unsigned int type = 0xff; 667 unsigned long time_left; 668 669 reinit_completion(&priv->type_detect); 670 671 regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CLAMP_CTRL, 672 CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_VAL_MASK, 673 CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_VAL_MASK); 674 675 cs42l43_start_hs_bias(priv, true); 676 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 677 CS42L43_HSDET_MODE_MASK, 0x3 << CS42L43_HSDET_MODE_SHIFT); 678 679 time_left = wait_for_completion_timeout(&priv->type_detect, 680 msecs_to_jiffies(timeout_ms)); 681 682 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 683 CS42L43_HSDET_MODE_MASK, 0x2 << CS42L43_HSDET_MODE_SHIFT); 684 cs42l43_stop_hs_bias(priv); 685 686 regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CLAMP_CTRL, 687 CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_VAL_MASK, 0); 688 689 if (!time_left) 690 return -ETIMEDOUT; 691 692 regmap_read(cs42l43->regmap, CS42L43_HS_STAT, &type); 693 694 dev_dbg(priv->dev, "Type detect: 0x%x\n", type); 695 696 /* Bail if jack removed, the type is irrelevant and likely invalid */ 697 if (!cs42l43_jack_present(priv)) 698 return -ENODEV; 699 700 switch (type & CS42L43_HSDET_TYPE_STS_MASK) { 701 case 0x0: // CTIA 702 case 0x1: // OMTP 703 case 0x4: 704 return cs42l43_run_load_detect(priv, true); 705 case 0x2: // 3-pole 706 return cs42l43_run_load_detect(priv, false); 707 case 0x3: // Open-circuit 708 return CS42L43_JACK_EXTENSION; 709 default: 710 return -EINVAL; 711 } 712 } 713 714 void cs42l43_clear_jack(struct cs42l43_codec *priv) 715 { 716 struct cs42l43 *cs42l43 = priv->core; 717 718 cs42l43_stop_button_detect(priv); 719 cs42l43_stop_hs_bias(priv); 720 721 regmap_update_bits(cs42l43->regmap, CS42L43_ADC_B_CTRL1, 722 CS42L43_PGA_WIDESWING_MODE_EN_MASK, 0); 723 regmap_update_bits(cs42l43->regmap, CS42L43_ADC_B_CTRL2, 724 CS42L43_PGA_WIDESWING_MODE_EN_MASK, 0); 725 regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CTRL, 726 CS42L43_JACK_STEREO_CONFIG_MASK, 0); 727 regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CLAMP_CTRL, 728 CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 729 CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK); 730 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 731 CS42L43_HSDET_MODE_MASK | CS42L43_HSDET_MANUAL_MODE_MASK, 732 0x2 << CS42L43_HSDET_MODE_SHIFT); 733 } 734 735 void cs42l43_tip_sense_work(struct work_struct *work) 736 { 737 struct cs42l43_codec *priv = container_of(work, struct cs42l43_codec, 738 tip_sense_work.work); 739 struct cs42l43 *cs42l43 = priv->core; 740 unsigned int sts = 0; 741 unsigned int tip, ring; 742 int ret, report; 743 744 ret = pm_runtime_resume_and_get(priv->dev); 745 if (ret) { 746 dev_err(priv->dev, "Failed to resume for tip work: %d\n", ret); 747 return; 748 } 749 750 mutex_lock(&priv->jack_lock); 751 752 regmap_read(cs42l43->regmap, CS42L43_TIP_RING_SENSE_INTERRUPT_STATUS, &sts); 753 754 dev_dbg(priv->dev, "Tip sense: 0x%x\n", sts); 755 756 tip = (sts >> CS42L43_TIPSENSE_PLUG_DB_STS_SHIFT) & CS42L43_JACK_PRESENT; 757 ring = (sts >> CS42L43_RINGSENSE_PLUG_DB_STS_SHIFT) & CS42L43_JACK_PRESENT; 758 759 if (tip == CS42L43_JACK_PRESENT) { 760 if (cs42l43->sdw && !priv->jack_present) { 761 priv->jack_present = true; 762 pm_runtime_get(priv->dev); 763 } 764 765 if (priv->use_ring_sense && ring == CS42L43_JACK_ABSENT) { 766 report = CS42L43_JACK_OPTICAL; 767 } else { 768 report = cs42l43_run_type_detect(priv); 769 if (report < 0) { 770 dev_err(priv->dev, "Jack detect failed: %d\n", report); 771 goto error; 772 } 773 } 774 775 snd_soc_jack_report(priv->jack_hp, report, report); 776 } else { 777 priv->jack_override = 0; 778 779 cs42l43_clear_jack(priv); 780 781 snd_soc_jack_report(priv->jack_hp, 0, 0xFFFF); 782 783 if (cs42l43->sdw && priv->jack_present) { 784 pm_runtime_put(priv->dev); 785 priv->jack_present = false; 786 } 787 } 788 789 error: 790 mutex_unlock(&priv->jack_lock); 791 792 priv->suspend_jack_debounce = false; 793 794 pm_runtime_put_autosuspend(priv->dev); 795 } 796 797 irqreturn_t cs42l43_tip_sense(int irq, void *data) 798 { 799 struct cs42l43_codec *priv = data; 800 unsigned int db_delay = priv->tip_debounce_ms; 801 802 cancel_delayed_work(&priv->bias_sense_timeout); 803 cancel_delayed_work(&priv->tip_sense_work); 804 805 // Ensure delay after suspend is long enough to avoid false detection 806 if (priv->suspend_jack_debounce) 807 db_delay += priv->tip_fall_db_ms + priv->tip_rise_db_ms; 808 809 queue_delayed_work(system_dfl_long_wq, &priv->tip_sense_work, 810 msecs_to_jiffies(db_delay)); 811 812 return IRQ_HANDLED; 813 } 814 815 enum cs42l43_raw_jack { 816 CS42L43_JACK_RAW_CTIA = 0, 817 CS42L43_JACK_RAW_OMTP, 818 CS42L43_JACK_RAW_HEADPHONE, 819 CS42L43_JACK_RAW_LINE_OUT, 820 CS42L43_JACK_RAW_LINE_IN, 821 CS42L43_JACK_RAW_MICROPHONE, 822 CS42L43_JACK_RAW_OPTICAL, 823 }; 824 825 #define CS42L43_JACK_3_POLE_SWITCHES ((0x2 << CS42L43_HSDET_MANUAL_MODE_SHIFT) | \ 826 CS42L43_AMP3_4_GNDREF_HS3_SEL_MASK | \ 827 CS42L43_AMP3_4_GNDREF_HS4_SEL_MASK | \ 828 CS42L43_HSBIAS_GNDREF_HS3_SEL_MASK | \ 829 CS42L43_HSBIAS_GNDREF_HS4_SEL_MASK | \ 830 CS42L43_HSGND_HS3_SEL_MASK | \ 831 CS42L43_HSGND_HS4_SEL_MASK) 832 833 static const struct cs42l43_jack_override_mode { 834 unsigned int hsdet_mode; 835 unsigned int mic_ctrl; 836 unsigned int clamp_ctrl; 837 int report; 838 } cs42l43_jack_override_modes[] = { 839 [CS42L43_JACK_RAW_CTIA] = { 840 .hsdet_mode = CS42L43_AMP3_4_GNDREF_HS3_SEL_MASK | 841 CS42L43_HSBIAS_GNDREF_HS3_SEL_MASK | 842 CS42L43_HSBIAS_OUT_HS4_SEL_MASK | 843 CS42L43_HSGND_HS3_SEL_MASK, 844 .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 845 .report = CS42L43_JACK_HEADSET, 846 }, 847 [CS42L43_JACK_RAW_OMTP] = { 848 .hsdet_mode = (0x1 << CS42L43_HSDET_MANUAL_MODE_SHIFT) | 849 CS42L43_AMP3_4_GNDREF_HS4_SEL_MASK | 850 CS42L43_HSBIAS_GNDREF_HS4_SEL_MASK | 851 CS42L43_HSBIAS_OUT_HS3_SEL_MASK | 852 CS42L43_HSGND_HS4_SEL_MASK, 853 .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 854 .report = CS42L43_JACK_HEADSET, 855 }, 856 [CS42L43_JACK_RAW_HEADPHONE] = { 857 .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES, 858 .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 859 .report = CS42L43_JACK_HEADPHONE, 860 }, 861 [CS42L43_JACK_RAW_LINE_OUT] = { 862 .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES, 863 .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 864 .report = CS42L43_JACK_LINEOUT, 865 }, 866 [CS42L43_JACK_RAW_LINE_IN] = { 867 .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES, 868 .mic_ctrl = 0x2 << CS42L43_JACK_STEREO_CONFIG_SHIFT, 869 .report = CS42L43_JACK_LINEIN, 870 }, 871 [CS42L43_JACK_RAW_MICROPHONE] = { 872 .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES, 873 .mic_ctrl = (0x3 << CS42L43_JACK_STEREO_CONFIG_SHIFT) | 874 CS42L43_HS1_BIAS_EN_MASK | CS42L43_HS2_BIAS_EN_MASK, 875 .report = CS42L43_JACK_MICROPHONE, 876 }, 877 [CS42L43_JACK_RAW_OPTICAL] = { 878 .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES, 879 .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 880 .report = CS42L43_JACK_OPTICAL, 881 }, 882 }; 883 884 static const char * const cs42l43_jack_text[] = { 885 "None", "CTIA", "OMTP", "Headphone", "Line-Out", 886 "Line-In", "Microphone", "Optical", 887 }; 888 889 static_assert(ARRAY_SIZE(cs42l43_jack_override_modes) == 890 ARRAY_SIZE(cs42l43_jack_text) - 1); 891 892 SOC_ENUM_SINGLE_VIRT_DECL(cs42l43_jack_enum, cs42l43_jack_text); 893 894 int cs42l43_jack_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 895 { 896 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 897 struct cs42l43_codec *priv = snd_soc_component_get_drvdata(component); 898 899 mutex_lock(&priv->jack_lock); 900 ucontrol->value.integer.value[0] = priv->jack_override; 901 mutex_unlock(&priv->jack_lock); 902 903 return 0; 904 } 905 906 int cs42l43_jack_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 907 { 908 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 909 struct cs42l43_codec *priv = snd_soc_component_get_drvdata(component); 910 struct cs42l43 *cs42l43 = priv->core; 911 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; 912 unsigned int override = ucontrol->value.integer.value[0]; 913 914 if (override >= e->items) 915 return -EINVAL; 916 917 mutex_lock(&priv->jack_lock); 918 919 if (!cs42l43_jack_present(priv)) { 920 mutex_unlock(&priv->jack_lock); 921 return -EBUSY; 922 } 923 924 if (override == priv->jack_override) { 925 mutex_unlock(&priv->jack_lock); 926 return 0; 927 } 928 929 priv->jack_override = override; 930 931 cs42l43_clear_jack(priv); 932 933 snd_soc_jack_report(priv->jack_hp, 0, 0xFFFF); 934 935 if (!override) { 936 queue_delayed_work(system_dfl_long_wq, &priv->tip_sense_work, 937 0); 938 } else { 939 override--; 940 941 regmap_update_bits(cs42l43->regmap, CS42L43_HS2, 942 CS42L43_HSDET_MODE_MASK | 943 CS42L43_HSDET_MANUAL_MODE_MASK | 944 CS42L43_AMP3_4_GNDREF_HS3_SEL_MASK | 945 CS42L43_AMP3_4_GNDREF_HS4_SEL_MASK | 946 CS42L43_HSBIAS_GNDREF_HS3_SEL_MASK | 947 CS42L43_HSBIAS_GNDREF_HS4_SEL_MASK | 948 CS42L43_HSBIAS_OUT_HS3_SEL_MASK | 949 CS42L43_HSBIAS_OUT_HS4_SEL_MASK | 950 CS42L43_HSGND_HS3_SEL_MASK | 951 CS42L43_HSGND_HS4_SEL_MASK, 952 cs42l43_jack_override_modes[override].hsdet_mode); 953 regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CTRL, 954 CS42L43_HS2_BIAS_EN_MASK | CS42L43_HS1_BIAS_EN_MASK | 955 CS42L43_JACK_STEREO_CONFIG_MASK, 956 cs42l43_jack_override_modes[override].mic_ctrl); 957 regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CLAMP_CTRL, 958 CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK, 959 cs42l43_jack_override_modes[override].clamp_ctrl); 960 961 switch (override) { 962 case CS42L43_JACK_RAW_CTIA: 963 case CS42L43_JACK_RAW_OMTP: 964 cs42l43_start_hs_bias(priv, false); 965 cs42l43_start_button_detect(priv); 966 break; 967 case CS42L43_JACK_RAW_LINE_IN: 968 regmap_update_bits(cs42l43->regmap, CS42L43_ADC_B_CTRL1, 969 CS42L43_PGA_WIDESWING_MODE_EN_MASK, 970 CS42L43_PGA_WIDESWING_MODE_EN_MASK); 971 regmap_update_bits(cs42l43->regmap, CS42L43_ADC_B_CTRL2, 972 CS42L43_PGA_WIDESWING_MODE_EN_MASK, 973 CS42L43_PGA_WIDESWING_MODE_EN_MASK); 974 break; 975 case CS42L43_JACK_RAW_MICROPHONE: 976 cs42l43_start_hs_bias(priv, false); 977 break; 978 default: 979 break; 980 } 981 982 snd_soc_jack_report(priv->jack_hp, 983 cs42l43_jack_override_modes[override].report, 984 cs42l43_jack_override_modes[override].report); 985 } 986 987 mutex_unlock(&priv->jack_lock); 988 989 return 1; 990 } 991