1// SPDX-License-Identifier: GPL-2.0-or-later 2/* 3 * da7219-aad.c - Dialog DA7219 ALSA SoC AAD Driver 4 * 5 * Copyright (c) 2015 Dialog Semiconductor Ltd. 6 * 7 * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> 8 */ 9 10#include <linux/module.h> 11#include <linux/platform_device.h> 12#include <linux/clk.h> 13#include <linux/i2c.h> 14#include <linux/property.h> 15#include <linux/pm_wakeirq.h> 16#include <linux/slab.h> 17#include <linux/delay.h> 18#include <linux/workqueue.h> 19#include <sound/soc.h> 20#include <sound/jack.h> 21#include <sound/da7219.h> 22 23#include "da7219.h" 24#include "da7219-aad.h" 25 26 27/* 28 * Detection control 29 */ 30 31void da7219_aad_jack_det(struct snd_soc_component *component, struct snd_soc_jack *jack) 32{ 33 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 34 35 da7219->aad->jack = jack; 36 da7219->aad->jack_inserted = false; 37 38 /* Send an initial empty report */ 39 snd_soc_jack_report(jack, 0, DA7219_AAD_REPORT_ALL_MASK); 40 41 /* Enable/Disable jack detection */ 42 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, 43 DA7219_ACCDET_EN_MASK, 44 (jack ? DA7219_ACCDET_EN_MASK : 0)); 45} 46EXPORT_SYMBOL_GPL(da7219_aad_jack_det); 47 48/* 49 * Button/HPTest work 50 */ 51 52static void da7219_aad_btn_det_work(struct work_struct *work) 53{ 54 struct da7219_aad_priv *da7219_aad = 55 container_of(work, struct da7219_aad_priv, btn_det_work); 56 struct snd_soc_component *component = da7219_aad->component; 57 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 58 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 59 u8 statusa, micbias_ctrl; 60 bool micbias_up = false; 61 int retries = 0; 62 63 /* Drive headphones/lineout */ 64 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, 65 DA7219_HP_L_AMP_OE_MASK, 66 DA7219_HP_L_AMP_OE_MASK); 67 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, 68 DA7219_HP_R_AMP_OE_MASK, 69 DA7219_HP_R_AMP_OE_MASK); 70 71 /* Make sure mic bias is up */ 72 snd_soc_dapm_force_enable_pin(dapm, "Mic Bias"); 73 snd_soc_dapm_sync(dapm); 74 75 do { 76 statusa = snd_soc_component_read(component, DA7219_ACCDET_STATUS_A); 77 if (statusa & DA7219_MICBIAS_UP_STS_MASK) 78 micbias_up = true; 79 else if (retries++ < DA7219_AAD_MICBIAS_CHK_RETRIES) 80 msleep(DA7219_AAD_MICBIAS_CHK_DELAY); 81 } while ((!micbias_up) && (retries < DA7219_AAD_MICBIAS_CHK_RETRIES)); 82 83 if (retries >= DA7219_AAD_MICBIAS_CHK_RETRIES) 84 dev_warn(component->dev, "Mic bias status check timed out"); 85 86 da7219->micbias_on_event = true; 87 88 /* 89 * Mic bias pulse required to enable mic, must be done before enabling 90 * button detection to prevent erroneous button readings. 91 */ 92 if (da7219_aad->micbias_pulse_lvl && da7219_aad->micbias_pulse_time) { 93 /* Pulse higher level voltage */ 94 micbias_ctrl = snd_soc_component_read(component, DA7219_MICBIAS_CTRL); 95 snd_soc_component_update_bits(component, DA7219_MICBIAS_CTRL, 96 DA7219_MICBIAS1_LEVEL_MASK, 97 da7219_aad->micbias_pulse_lvl); 98 msleep(da7219_aad->micbias_pulse_time); 99 snd_soc_component_write(component, DA7219_MICBIAS_CTRL, micbias_ctrl); 100 101 } 102 103 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, 104 DA7219_BUTTON_CONFIG_MASK, 105 da7219_aad->btn_cfg); 106} 107 108static void da7219_aad_hptest_work(struct work_struct *work) 109{ 110 struct da7219_aad_priv *da7219_aad = 111 container_of(work, struct da7219_aad_priv, hptest_work); 112 struct snd_soc_component *component = da7219_aad->component; 113 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 114 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 115 116 __le16 tonegen_freq_hptest; 117 u8 pll_srm_sts, pll_ctrl, gain_ramp_ctrl, accdet_cfg8; 118 int report = 0, ret = 0; 119 120 /* Lock DAPM, Kcontrols affected by this test and the PLL */ 121 snd_soc_dapm_mutex_lock(dapm); 122 mutex_lock(&da7219->ctrl_lock); 123 mutex_lock(&da7219->pll_lock); 124 125 /* Ensure MCLK is available for HP test procedure */ 126 if (da7219->mclk) { 127 ret = clk_prepare_enable(da7219->mclk); 128 if (ret) { 129 dev_err(component->dev, "Failed to enable mclk - %d\n", ret); 130 mutex_unlock(&da7219->pll_lock); 131 mutex_unlock(&da7219->ctrl_lock); 132 snd_soc_dapm_mutex_unlock(dapm); 133 return; 134 } 135 } 136 137 /* 138 * If MCLK not present, then we're using the internal oscillator and 139 * require different frequency settings to achieve the same result. 140 * 141 * If MCLK is present, but PLL is not enabled then we enable it here to 142 * ensure a consistent detection procedure. 143 */ 144 pll_srm_sts = snd_soc_component_read(component, DA7219_PLL_SRM_STS); 145 if (pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) { 146 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ); 147 148 pll_ctrl = snd_soc_component_read(component, DA7219_PLL_CTRL); 149 if ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS) 150 da7219_set_pll(component, DA7219_SYSCLK_PLL, 151 DA7219_PLL_FREQ_OUT_98304); 152 } else { 153 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ_INT_OSC); 154 } 155 156 /* Ensure gain ramping at fastest rate */ 157 gain_ramp_ctrl = snd_soc_component_read(component, DA7219_GAIN_RAMP_CTRL); 158 snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL, DA7219_GAIN_RAMP_RATE_X8); 159 160 /* Bypass cache so it saves current settings */ 161 regcache_cache_bypass(da7219->regmap, true); 162 163 /* Make sure Tone Generator is disabled */ 164 snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, 0); 165 166 /* Enable HPTest block, 1KOhms check */ 167 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_8, 168 DA7219_HPTEST_EN_MASK | DA7219_HPTEST_RES_SEL_MASK, 169 DA7219_HPTEST_EN_MASK | 170 DA7219_HPTEST_RES_SEL_1KOHMS); 171 172 /* Set gains to 0db */ 173 snd_soc_component_write(component, DA7219_DAC_L_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB); 174 snd_soc_component_write(component, DA7219_DAC_R_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB); 175 snd_soc_component_write(component, DA7219_HP_L_GAIN, DA7219_HP_AMP_GAIN_0DB); 176 snd_soc_component_write(component, DA7219_HP_R_GAIN, DA7219_HP_AMP_GAIN_0DB); 177 178 /* Disable DAC filters, EQs and soft mute */ 179 snd_soc_component_update_bits(component, DA7219_DAC_FILTERS1, DA7219_HPF_MODE_MASK, 180 0); 181 snd_soc_component_update_bits(component, DA7219_DAC_FILTERS4, DA7219_DAC_EQ_EN_MASK, 182 0); 183 snd_soc_component_update_bits(component, DA7219_DAC_FILTERS5, 184 DA7219_DAC_SOFTMUTE_EN_MASK, 0); 185 186 /* Enable HP left & right paths */ 187 snd_soc_component_update_bits(component, DA7219_CP_CTRL, DA7219_CP_EN_MASK, 188 DA7219_CP_EN_MASK); 189 snd_soc_component_update_bits(component, DA7219_DIG_ROUTING_DAC, 190 DA7219_DAC_L_SRC_MASK | DA7219_DAC_R_SRC_MASK, 191 DA7219_DAC_L_SRC_TONEGEN | 192 DA7219_DAC_R_SRC_TONEGEN); 193 snd_soc_component_update_bits(component, DA7219_DAC_L_CTRL, 194 DA7219_DAC_L_EN_MASK | DA7219_DAC_L_MUTE_EN_MASK, 195 DA7219_DAC_L_EN_MASK); 196 snd_soc_component_update_bits(component, DA7219_DAC_R_CTRL, 197 DA7219_DAC_R_EN_MASK | DA7219_DAC_R_MUTE_EN_MASK, 198 DA7219_DAC_R_EN_MASK); 199 snd_soc_component_update_bits(component, DA7219_MIXOUT_L_SELECT, 200 DA7219_MIXOUT_L_MIX_SELECT_MASK, 201 DA7219_MIXOUT_L_MIX_SELECT_MASK); 202 snd_soc_component_update_bits(component, DA7219_MIXOUT_R_SELECT, 203 DA7219_MIXOUT_R_MIX_SELECT_MASK, 204 DA7219_MIXOUT_R_MIX_SELECT_MASK); 205 snd_soc_component_update_bits(component, DA7219_DROUTING_ST_OUTFILT_1L, 206 DA7219_OUTFILT_ST_1L_SRC_MASK, 207 DA7219_DMIX_ST_SRC_OUTFILT1L); 208 snd_soc_component_update_bits(component, DA7219_DROUTING_ST_OUTFILT_1R, 209 DA7219_OUTFILT_ST_1R_SRC_MASK, 210 DA7219_DMIX_ST_SRC_OUTFILT1R); 211 snd_soc_component_update_bits(component, DA7219_MIXOUT_L_CTRL, 212 DA7219_MIXOUT_L_AMP_EN_MASK, 213 DA7219_MIXOUT_L_AMP_EN_MASK); 214 snd_soc_component_update_bits(component, DA7219_MIXOUT_R_CTRL, 215 DA7219_MIXOUT_R_AMP_EN_MASK, 216 DA7219_MIXOUT_R_AMP_EN_MASK); 217 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, 218 DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK, 219 DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK); 220 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, 221 DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK, 222 DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK); 223 msleep(DA7219_SETTLING_DELAY); 224 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, 225 DA7219_HP_L_AMP_MUTE_EN_MASK | 226 DA7219_HP_L_AMP_MIN_GAIN_EN_MASK, 0); 227 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, 228 DA7219_HP_R_AMP_MUTE_EN_MASK | 229 DA7219_HP_R_AMP_MIN_GAIN_EN_MASK, 0); 230 231 /* 232 * If we're running from the internal oscillator then give audio paths 233 * time to settle before running test. 234 */ 235 if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK)) 236 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY); 237 238 /* Configure & start Tone Generator */ 239 snd_soc_component_write(component, DA7219_TONE_GEN_ON_PER, DA7219_BEEP_ON_PER_MASK); 240 regmap_raw_write(da7219->regmap, DA7219_TONE_GEN_FREQ1_L, 241 &tonegen_freq_hptest, sizeof(tonegen_freq_hptest)); 242 snd_soc_component_update_bits(component, DA7219_TONE_GEN_CFG2, 243 DA7219_SWG_SEL_MASK | DA7219_TONE_GEN_GAIN_MASK, 244 DA7219_SWG_SEL_SRAMP | 245 DA7219_TONE_GEN_GAIN_MINUS_15DB); 246 snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, DA7219_START_STOPN_MASK); 247 248 msleep(DA7219_AAD_HPTEST_PERIOD); 249 250 /* Grab comparator reading */ 251 accdet_cfg8 = snd_soc_component_read(component, DA7219_ACCDET_CONFIG_8); 252 if (accdet_cfg8 & DA7219_HPTEST_COMP_MASK) 253 report |= SND_JACK_HEADPHONE; 254 else 255 report |= SND_JACK_LINEOUT; 256 257 /* Stop tone generator */ 258 snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, 0); 259 260 msleep(DA7219_AAD_HPTEST_PERIOD); 261 262 /* Restore original settings from cache */ 263 regcache_mark_dirty(da7219->regmap); 264 regcache_sync_region(da7219->regmap, DA7219_HP_L_CTRL, 265 DA7219_HP_R_CTRL); 266 msleep(DA7219_SETTLING_DELAY); 267 regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_CTRL, 268 DA7219_MIXOUT_R_CTRL); 269 regcache_sync_region(da7219->regmap, DA7219_DROUTING_ST_OUTFILT_1L, 270 DA7219_DROUTING_ST_OUTFILT_1R); 271 regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_SELECT, 272 DA7219_MIXOUT_R_SELECT); 273 regcache_sync_region(da7219->regmap, DA7219_DAC_L_CTRL, 274 DA7219_DAC_R_CTRL); 275 regcache_sync_region(da7219->regmap, DA7219_DIG_ROUTING_DAC, 276 DA7219_DIG_ROUTING_DAC); 277 regcache_sync_region(da7219->regmap, DA7219_CP_CTRL, DA7219_CP_CTRL); 278 regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS5, 279 DA7219_DAC_FILTERS5); 280 regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS4, 281 DA7219_DAC_FILTERS1); 282 regcache_sync_region(da7219->regmap, DA7219_HP_L_GAIN, 283 DA7219_HP_R_GAIN); 284 regcache_sync_region(da7219->regmap, DA7219_DAC_L_GAIN, 285 DA7219_DAC_R_GAIN); 286 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_ON_PER, 287 DA7219_TONE_GEN_ON_PER); 288 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_FREQ1_L, 289 DA7219_TONE_GEN_FREQ1_U); 290 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_CFG1, 291 DA7219_TONE_GEN_CFG2); 292 293 regcache_cache_bypass(da7219->regmap, false); 294 295 /* Disable HPTest block */ 296 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_8, 297 DA7219_HPTEST_EN_MASK, 0); 298 299 /* 300 * If we're running from the internal oscillator then give audio paths 301 * time to settle before allowing headphones to be driven as required. 302 */ 303 if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK)) 304 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY); 305 306 /* Restore gain ramping rate */ 307 snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL, gain_ramp_ctrl); 308 309 /* Drive Headphones/lineout */ 310 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, DA7219_HP_L_AMP_OE_MASK, 311 DA7219_HP_L_AMP_OE_MASK); 312 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, DA7219_HP_R_AMP_OE_MASK, 313 DA7219_HP_R_AMP_OE_MASK); 314 315 /* Restore PLL to previous configuration, if re-configured */ 316 if ((pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) && 317 ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS)) 318 da7219_set_pll(component, DA7219_SYSCLK_MCLK, 0); 319 320 /* Remove MCLK, if previously enabled */ 321 if (da7219->mclk) 322 clk_disable_unprepare(da7219->mclk); 323 324 mutex_unlock(&da7219->pll_lock); 325 mutex_unlock(&da7219->ctrl_lock); 326 snd_soc_dapm_mutex_unlock(dapm); 327 328 /* 329 * Only send report if jack hasn't been removed during process, 330 * otherwise it's invalid and we drop it. 331 */ 332 if (da7219_aad->jack_inserted) 333 snd_soc_jack_report(da7219_aad->jack, report, 334 SND_JACK_HEADSET | SND_JACK_LINEOUT); 335} 336 337 338/* 339 * IRQ 340 */ 341 342static irqreturn_t da7219_aad_irq_thread(int irq, void *data) 343{ 344 struct da7219_aad_priv *da7219_aad = data; 345 struct snd_soc_component *component = da7219_aad->component; 346 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 347 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 348 u8 events[DA7219_AAD_IRQ_REG_MAX]; 349 u8 statusa; 350 int i, ret, report = 0, mask = 0; 351 352 /* Read current IRQ events */ 353 ret = regmap_bulk_read(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A, 354 events, DA7219_AAD_IRQ_REG_MAX); 355 if (ret) { 356 dev_warn_ratelimited(component->dev, "Failed to read IRQ events: %d\n", ret); 357 return IRQ_NONE; 358 } 359 360 if (!events[DA7219_AAD_IRQ_REG_A] && !events[DA7219_AAD_IRQ_REG_B]) 361 return IRQ_NONE; 362 363 /* Read status register for jack insertion & type status */ 364 statusa = snd_soc_component_read(component, DA7219_ACCDET_STATUS_A); 365 366 /* Clear events */ 367 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A, 368 events, DA7219_AAD_IRQ_REG_MAX); 369 370 dev_dbg(component->dev, "IRQ events = 0x%x|0x%x, status = 0x%x\n", 371 events[DA7219_AAD_IRQ_REG_A], events[DA7219_AAD_IRQ_REG_B], 372 statusa); 373 374 if (statusa & DA7219_JACK_INSERTION_STS_MASK) { 375 /* Jack Insertion */ 376 if (events[DA7219_AAD_IRQ_REG_A] & 377 DA7219_E_JACK_INSERTED_MASK) { 378 report |= SND_JACK_MECHANICAL; 379 mask |= SND_JACK_MECHANICAL; 380 da7219_aad->jack_inserted = true; 381 } 382 383 /* Jack type detection */ 384 if (events[DA7219_AAD_IRQ_REG_A] & 385 DA7219_E_JACK_DETECT_COMPLETE_MASK) { 386 /* 387 * If 4-pole, then enable button detection, else perform 388 * HP impedance test to determine output type to report. 389 * 390 * We schedule work here as the tasks themselves can 391 * take time to complete, and in particular for hptest 392 * we want to be able to check if the jack was removed 393 * during the procedure as this will invalidate the 394 * result. By doing this as work, the IRQ thread can 395 * handle a removal, and we can check at the end of 396 * hptest if we have a valid result or not. 397 */ 398 if (statusa & DA7219_JACK_TYPE_STS_MASK) { 399 report |= SND_JACK_HEADSET; 400 mask |= SND_JACK_HEADSET | SND_JACK_LINEOUT; 401 schedule_work(&da7219_aad->btn_det_work); 402 } else { 403 schedule_work(&da7219_aad->hptest_work); 404 } 405 } 406 407 /* Button support for 4-pole jack */ 408 if (statusa & DA7219_JACK_TYPE_STS_MASK) { 409 for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) { 410 /* Button Press */ 411 if (events[DA7219_AAD_IRQ_REG_B] & 412 (DA7219_E_BUTTON_A_PRESSED_MASK << i)) { 413 report |= SND_JACK_BTN_0 >> i; 414 mask |= SND_JACK_BTN_0 >> i; 415 } 416 } 417 snd_soc_jack_report(da7219_aad->jack, report, mask); 418 419 for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) { 420 /* Button Release */ 421 if (events[DA7219_AAD_IRQ_REG_B] & 422 (DA7219_E_BUTTON_A_RELEASED_MASK >> i)) { 423 report &= ~(SND_JACK_BTN_0 >> i); 424 mask |= SND_JACK_BTN_0 >> i; 425 } 426 } 427 } 428 } else { 429 /* Jack removal */ 430 if (events[DA7219_AAD_IRQ_REG_A] & DA7219_E_JACK_REMOVED_MASK) { 431 report = 0; 432 mask |= DA7219_AAD_REPORT_ALL_MASK; 433 da7219_aad->jack_inserted = false; 434 435 /* Un-drive headphones/lineout */ 436 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, 437 DA7219_HP_R_AMP_OE_MASK, 0); 438 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, 439 DA7219_HP_L_AMP_OE_MASK, 0); 440 441 /* Ensure button detection disabled */ 442 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, 443 DA7219_BUTTON_CONFIG_MASK, 0); 444 445 da7219->micbias_on_event = false; 446 447 /* Disable mic bias */ 448 snd_soc_dapm_disable_pin(dapm, "Mic Bias"); 449 snd_soc_dapm_sync(dapm); 450 451 /* Cancel any pending work */ 452 cancel_work_sync(&da7219_aad->btn_det_work); 453 cancel_work_sync(&da7219_aad->hptest_work); 454 } 455 } 456 457 snd_soc_jack_report(da7219_aad->jack, report, mask); 458 459 return IRQ_HANDLED; 460} 461 462/* 463 * DT/ACPI to pdata conversion 464 */ 465 466static enum da7219_aad_micbias_pulse_lvl 467 da7219_aad_fw_micbias_pulse_lvl(struct device *dev, u32 val) 468{ 469 switch (val) { 470 case 2800: 471 return DA7219_AAD_MICBIAS_PULSE_LVL_2_8V; 472 case 2900: 473 return DA7219_AAD_MICBIAS_PULSE_LVL_2_9V; 474 default: 475 dev_warn(dev, "Invalid micbias pulse level"); 476 return DA7219_AAD_MICBIAS_PULSE_LVL_OFF; 477 } 478} 479 480static enum da7219_aad_btn_cfg 481 da7219_aad_fw_btn_cfg(struct device *dev, u32 val) 482{ 483 switch (val) { 484 case 2: 485 return DA7219_AAD_BTN_CFG_2MS; 486 case 5: 487 return DA7219_AAD_BTN_CFG_5MS; 488 case 10: 489 return DA7219_AAD_BTN_CFG_10MS; 490 case 50: 491 return DA7219_AAD_BTN_CFG_50MS; 492 case 100: 493 return DA7219_AAD_BTN_CFG_100MS; 494 case 200: 495 return DA7219_AAD_BTN_CFG_200MS; 496 case 500: 497 return DA7219_AAD_BTN_CFG_500MS; 498 default: 499 dev_warn(dev, "Invalid button config"); 500 return DA7219_AAD_BTN_CFG_10MS; 501 } 502} 503 504static enum da7219_aad_mic_det_thr 505 da7219_aad_fw_mic_det_thr(struct device *dev, u32 val) 506{ 507 switch (val) { 508 case 200: 509 return DA7219_AAD_MIC_DET_THR_200_OHMS; 510 case 500: 511 return DA7219_AAD_MIC_DET_THR_500_OHMS; 512 case 750: 513 return DA7219_AAD_MIC_DET_THR_750_OHMS; 514 case 1000: 515 return DA7219_AAD_MIC_DET_THR_1000_OHMS; 516 default: 517 dev_warn(dev, "Invalid mic detect threshold"); 518 return DA7219_AAD_MIC_DET_THR_500_OHMS; 519 } 520} 521 522static enum da7219_aad_jack_ins_deb 523 da7219_aad_fw_jack_ins_deb(struct device *dev, u32 val) 524{ 525 switch (val) { 526 case 5: 527 return DA7219_AAD_JACK_INS_DEB_5MS; 528 case 10: 529 return DA7219_AAD_JACK_INS_DEB_10MS; 530 case 20: 531 return DA7219_AAD_JACK_INS_DEB_20MS; 532 case 50: 533 return DA7219_AAD_JACK_INS_DEB_50MS; 534 case 100: 535 return DA7219_AAD_JACK_INS_DEB_100MS; 536 case 200: 537 return DA7219_AAD_JACK_INS_DEB_200MS; 538 case 500: 539 return DA7219_AAD_JACK_INS_DEB_500MS; 540 case 1000: 541 return DA7219_AAD_JACK_INS_DEB_1S; 542 default: 543 dev_warn(dev, "Invalid jack insert debounce"); 544 return DA7219_AAD_JACK_INS_DEB_20MS; 545 } 546} 547 548static enum da7219_aad_jack_det_rate 549 da7219_aad_fw_jack_det_rate(struct device *dev, const char *str) 550{ 551 if (!strcmp(str, "32ms_64ms")) { 552 return DA7219_AAD_JACK_DET_RATE_32_64MS; 553 } else if (!strcmp(str, "64ms_128ms")) { 554 return DA7219_AAD_JACK_DET_RATE_64_128MS; 555 } else if (!strcmp(str, "128ms_256ms")) { 556 return DA7219_AAD_JACK_DET_RATE_128_256MS; 557 } else if (!strcmp(str, "256ms_512ms")) { 558 return DA7219_AAD_JACK_DET_RATE_256_512MS; 559 } else { 560 dev_warn(dev, "Invalid jack detect rate"); 561 return DA7219_AAD_JACK_DET_RATE_256_512MS; 562 } 563} 564 565static enum da7219_aad_jack_rem_deb 566 da7219_aad_fw_jack_rem_deb(struct device *dev, u32 val) 567{ 568 switch (val) { 569 case 1: 570 return DA7219_AAD_JACK_REM_DEB_1MS; 571 case 5: 572 return DA7219_AAD_JACK_REM_DEB_5MS; 573 case 10: 574 return DA7219_AAD_JACK_REM_DEB_10MS; 575 case 20: 576 return DA7219_AAD_JACK_REM_DEB_20MS; 577 default: 578 dev_warn(dev, "Invalid jack removal debounce"); 579 return DA7219_AAD_JACK_REM_DEB_1MS; 580 } 581} 582 583static enum da7219_aad_btn_avg 584 da7219_aad_fw_btn_avg(struct device *dev, u32 val) 585{ 586 switch (val) { 587 case 1: 588 return DA7219_AAD_BTN_AVG_1; 589 case 2: 590 return DA7219_AAD_BTN_AVG_2; 591 case 4: 592 return DA7219_AAD_BTN_AVG_4; 593 case 8: 594 return DA7219_AAD_BTN_AVG_8; 595 default: 596 dev_warn(dev, "Invalid button average value"); 597 return DA7219_AAD_BTN_AVG_2; 598 } 599} 600 601static enum da7219_aad_adc_1bit_rpt 602 da7219_aad_fw_adc_1bit_rpt(struct device *dev, u32 val) 603{ 604 switch (val) { 605 case 1: 606 return DA7219_AAD_ADC_1BIT_RPT_1; 607 case 2: 608 return DA7219_AAD_ADC_1BIT_RPT_2; 609 case 4: 610 return DA7219_AAD_ADC_1BIT_RPT_4; 611 case 8: 612 return DA7219_AAD_ADC_1BIT_RPT_8; 613 default: 614 dev_warn(dev, "Invalid ADC 1-bit repeat value"); 615 return DA7219_AAD_ADC_1BIT_RPT_1; 616 } 617} 618 619static struct da7219_aad_pdata *da7219_aad_fw_to_pdata(struct device *dev) 620{ 621 struct i2c_client *i2c = to_i2c_client(dev); 622 struct fwnode_handle *aad_np; 623 struct da7219_aad_pdata *aad_pdata; 624 const char *fw_str; 625 u32 fw_val32; 626 627 aad_np = device_get_named_child_node(dev, "da7219_aad"); 628 if (!aad_np) 629 return NULL; 630 631 aad_pdata = devm_kzalloc(dev, sizeof(*aad_pdata), GFP_KERNEL); 632 if (!aad_pdata) 633 return NULL; 634 635 aad_pdata->irq = i2c->irq; 636 637 if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-lvl", 638 &fw_val32) >= 0) 639 aad_pdata->micbias_pulse_lvl = 640 da7219_aad_fw_micbias_pulse_lvl(dev, fw_val32); 641 else 642 aad_pdata->micbias_pulse_lvl = DA7219_AAD_MICBIAS_PULSE_LVL_OFF; 643 644 if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-time", 645 &fw_val32) >= 0) 646 aad_pdata->micbias_pulse_time = fw_val32; 647 648 if (fwnode_property_read_u32(aad_np, "dlg,btn-cfg", &fw_val32) >= 0) 649 aad_pdata->btn_cfg = da7219_aad_fw_btn_cfg(dev, fw_val32); 650 else 651 aad_pdata->btn_cfg = DA7219_AAD_BTN_CFG_10MS; 652 653 if (fwnode_property_read_u32(aad_np, "dlg,mic-det-thr", &fw_val32) >= 0) 654 aad_pdata->mic_det_thr = 655 da7219_aad_fw_mic_det_thr(dev, fw_val32); 656 else 657 aad_pdata->mic_det_thr = DA7219_AAD_MIC_DET_THR_200_OHMS; 658 659 if (fwnode_property_read_u32(aad_np, "dlg,jack-ins-deb", &fw_val32) >= 0) 660 aad_pdata->jack_ins_deb = 661 da7219_aad_fw_jack_ins_deb(dev, fw_val32); 662 else 663 aad_pdata->jack_ins_deb = DA7219_AAD_JACK_INS_DEB_20MS; 664 665 if (!fwnode_property_read_string(aad_np, "dlg,jack-det-rate", &fw_str)) 666 aad_pdata->jack_det_rate = 667 da7219_aad_fw_jack_det_rate(dev, fw_str); 668 else 669 aad_pdata->jack_det_rate = DA7219_AAD_JACK_DET_RATE_256_512MS; 670 671 if (fwnode_property_read_u32(aad_np, "dlg,jack-rem-deb", &fw_val32) >= 0) 672 aad_pdata->jack_rem_deb = 673 da7219_aad_fw_jack_rem_deb(dev, fw_val32); 674 else 675 aad_pdata->jack_rem_deb = DA7219_AAD_JACK_REM_DEB_1MS; 676 677 if (fwnode_property_read_u32(aad_np, "dlg,a-d-btn-thr", &fw_val32) >= 0) 678 aad_pdata->a_d_btn_thr = (u8) fw_val32; 679 else 680 aad_pdata->a_d_btn_thr = 0xA; 681 682 if (fwnode_property_read_u32(aad_np, "dlg,d-b-btn-thr", &fw_val32) >= 0) 683 aad_pdata->d_b_btn_thr = (u8) fw_val32; 684 else 685 aad_pdata->d_b_btn_thr = 0x16; 686 687 if (fwnode_property_read_u32(aad_np, "dlg,b-c-btn-thr", &fw_val32) >= 0) 688 aad_pdata->b_c_btn_thr = (u8) fw_val32; 689 else 690 aad_pdata->b_c_btn_thr = 0x21; 691 692 if (fwnode_property_read_u32(aad_np, "dlg,c-mic-btn-thr", &fw_val32) >= 0) 693 aad_pdata->c_mic_btn_thr = (u8) fw_val32; 694 else 695 aad_pdata->c_mic_btn_thr = 0x3E; 696 697 if (fwnode_property_read_u32(aad_np, "dlg,btn-avg", &fw_val32) >= 0) 698 aad_pdata->btn_avg = da7219_aad_fw_btn_avg(dev, fw_val32); 699 else 700 aad_pdata->btn_avg = DA7219_AAD_BTN_AVG_2; 701 702 if (fwnode_property_read_u32(aad_np, "dlg,adc-1bit-rpt", &fw_val32) >= 0) 703 aad_pdata->adc_1bit_rpt = 704 da7219_aad_fw_adc_1bit_rpt(dev, fw_val32); 705 else 706 aad_pdata->adc_1bit_rpt = DA7219_AAD_ADC_1BIT_RPT_1; 707 708 return aad_pdata; 709} 710 711static void da7219_aad_handle_pdata(struct snd_soc_component *component) 712{ 713 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 714 struct da7219_aad_priv *da7219_aad = da7219->aad; 715 struct da7219_pdata *pdata = da7219->pdata; 716 717 if ((pdata) && (pdata->aad_pdata)) { 718 struct da7219_aad_pdata *aad_pdata = pdata->aad_pdata; 719 u8 cfg, mask; 720 721 da7219_aad->irq = aad_pdata->irq; 722 723 switch (aad_pdata->micbias_pulse_lvl) { 724 case DA7219_AAD_MICBIAS_PULSE_LVL_2_8V: 725 case DA7219_AAD_MICBIAS_PULSE_LVL_2_9V: 726 da7219_aad->micbias_pulse_lvl = 727 (aad_pdata->micbias_pulse_lvl << 728 DA7219_MICBIAS1_LEVEL_SHIFT); 729 break; 730 default: 731 break; 732 } 733 734 da7219_aad->micbias_pulse_time = aad_pdata->micbias_pulse_time; 735 736 switch (aad_pdata->btn_cfg) { 737 case DA7219_AAD_BTN_CFG_2MS: 738 case DA7219_AAD_BTN_CFG_5MS: 739 case DA7219_AAD_BTN_CFG_10MS: 740 case DA7219_AAD_BTN_CFG_50MS: 741 case DA7219_AAD_BTN_CFG_100MS: 742 case DA7219_AAD_BTN_CFG_200MS: 743 case DA7219_AAD_BTN_CFG_500MS: 744 da7219_aad->btn_cfg = (aad_pdata->btn_cfg << 745 DA7219_BUTTON_CONFIG_SHIFT); 746 } 747 748 cfg = 0; 749 mask = 0; 750 switch (aad_pdata->mic_det_thr) { 751 case DA7219_AAD_MIC_DET_THR_200_OHMS: 752 case DA7219_AAD_MIC_DET_THR_500_OHMS: 753 case DA7219_AAD_MIC_DET_THR_750_OHMS: 754 case DA7219_AAD_MIC_DET_THR_1000_OHMS: 755 cfg |= (aad_pdata->mic_det_thr << 756 DA7219_MIC_DET_THRESH_SHIFT); 757 mask |= DA7219_MIC_DET_THRESH_MASK; 758 } 759 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, mask, cfg); 760 761 cfg = 0; 762 mask = 0; 763 switch (aad_pdata->jack_ins_deb) { 764 case DA7219_AAD_JACK_INS_DEB_5MS: 765 case DA7219_AAD_JACK_INS_DEB_10MS: 766 case DA7219_AAD_JACK_INS_DEB_20MS: 767 case DA7219_AAD_JACK_INS_DEB_50MS: 768 case DA7219_AAD_JACK_INS_DEB_100MS: 769 case DA7219_AAD_JACK_INS_DEB_200MS: 770 case DA7219_AAD_JACK_INS_DEB_500MS: 771 case DA7219_AAD_JACK_INS_DEB_1S: 772 cfg |= (aad_pdata->jack_ins_deb << 773 DA7219_JACKDET_DEBOUNCE_SHIFT); 774 mask |= DA7219_JACKDET_DEBOUNCE_MASK; 775 } 776 switch (aad_pdata->jack_det_rate) { 777 case DA7219_AAD_JACK_DET_RATE_32_64MS: 778 case DA7219_AAD_JACK_DET_RATE_64_128MS: 779 case DA7219_AAD_JACK_DET_RATE_128_256MS: 780 case DA7219_AAD_JACK_DET_RATE_256_512MS: 781 cfg |= (aad_pdata->jack_det_rate << 782 DA7219_JACK_DETECT_RATE_SHIFT); 783 mask |= DA7219_JACK_DETECT_RATE_MASK; 784 } 785 switch (aad_pdata->jack_rem_deb) { 786 case DA7219_AAD_JACK_REM_DEB_1MS: 787 case DA7219_AAD_JACK_REM_DEB_5MS: 788 case DA7219_AAD_JACK_REM_DEB_10MS: 789 case DA7219_AAD_JACK_REM_DEB_20MS: 790 cfg |= (aad_pdata->jack_rem_deb << 791 DA7219_JACKDET_REM_DEB_SHIFT); 792 mask |= DA7219_JACKDET_REM_DEB_MASK; 793 } 794 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_2, mask, cfg); 795 796 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_3, 797 aad_pdata->a_d_btn_thr); 798 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_4, 799 aad_pdata->d_b_btn_thr); 800 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_5, 801 aad_pdata->b_c_btn_thr); 802 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_6, 803 aad_pdata->c_mic_btn_thr); 804 805 cfg = 0; 806 mask = 0; 807 switch (aad_pdata->btn_avg) { 808 case DA7219_AAD_BTN_AVG_1: 809 case DA7219_AAD_BTN_AVG_2: 810 case DA7219_AAD_BTN_AVG_4: 811 case DA7219_AAD_BTN_AVG_8: 812 cfg |= (aad_pdata->btn_avg << 813 DA7219_BUTTON_AVERAGE_SHIFT); 814 mask |= DA7219_BUTTON_AVERAGE_MASK; 815 } 816 switch (aad_pdata->adc_1bit_rpt) { 817 case DA7219_AAD_ADC_1BIT_RPT_1: 818 case DA7219_AAD_ADC_1BIT_RPT_2: 819 case DA7219_AAD_ADC_1BIT_RPT_4: 820 case DA7219_AAD_ADC_1BIT_RPT_8: 821 cfg |= (aad_pdata->adc_1bit_rpt << 822 DA7219_ADC_1_BIT_REPEAT_SHIFT); 823 mask |= DA7219_ADC_1_BIT_REPEAT_MASK; 824 } 825 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_7, mask, cfg); 826 } 827} 828 829 830/* 831 * Suspend/Resume 832 */ 833 834void da7219_aad_suspend(struct snd_soc_component *component) 835{ 836 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 837 struct da7219_aad_priv *da7219_aad = da7219->aad; 838 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 839 u8 micbias_ctrl; 840 841 if (da7219_aad->jack) { 842 /* Disable jack detection during suspend */ 843 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, 844 DA7219_ACCDET_EN_MASK, 0); 845 846 /* 847 * If we have a 4-pole jack inserted, then micbias will be 848 * enabled. We can disable micbias here, and keep a note to 849 * re-enable it on resume. If jack removal occurred during 850 * suspend then this will be dealt with through the IRQ handler. 851 */ 852 if (da7219_aad->jack_inserted) { 853 micbias_ctrl = snd_soc_component_read(component, DA7219_MICBIAS_CTRL); 854 if (micbias_ctrl & DA7219_MICBIAS1_EN_MASK) { 855 snd_soc_dapm_disable_pin(dapm, "Mic Bias"); 856 snd_soc_dapm_sync(dapm); 857 da7219_aad->micbias_resume_enable = true; 858 } 859 } 860 } 861 862 synchronize_irq(da7219_aad->irq); 863} 864 865void da7219_aad_resume(struct snd_soc_component *component) 866{ 867 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 868 struct da7219_aad_priv *da7219_aad = da7219->aad; 869 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 870 871 if (da7219_aad->jack) { 872 /* Re-enable micbias if previously enabled for 4-pole jack */ 873 if (da7219_aad->jack_inserted && 874 da7219_aad->micbias_resume_enable) { 875 snd_soc_dapm_force_enable_pin(dapm, "Mic Bias"); 876 snd_soc_dapm_sync(dapm); 877 da7219_aad->micbias_resume_enable = false; 878 } 879 880 /* Re-enable jack detection */ 881 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, 882 DA7219_ACCDET_EN_MASK, 883 DA7219_ACCDET_EN_MASK); 884 } 885} 886 887 888/* 889 * Init/Exit 890 */ 891 892int da7219_aad_init(struct snd_soc_component *component) 893{ 894 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 895 struct da7219_aad_priv *da7219_aad = da7219->aad; 896 u8 mask[DA7219_AAD_IRQ_REG_MAX]; 897 int ret; 898 899 da7219_aad->component = component; 900 901 /* Handle any DT/ACPI/platform data */ 902 da7219_aad_handle_pdata(component); 903 904 /* Disable button detection */ 905 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, 906 DA7219_BUTTON_CONFIG_MASK, 0); 907 908 INIT_WORK(&da7219_aad->btn_det_work, da7219_aad_btn_det_work); 909 INIT_WORK(&da7219_aad->hptest_work, da7219_aad_hptest_work); 910 911 ret = request_threaded_irq(da7219_aad->irq, NULL, 912 da7219_aad_irq_thread, 913 IRQF_TRIGGER_LOW | IRQF_ONESHOT, 914 "da7219-aad", da7219_aad); 915 if (ret) { 916 dev_err(component->dev, "Failed to request IRQ: %d\n", ret); 917 return ret; 918 } 919 920 /* Unmask AAD IRQs */ 921 memset(mask, 0, DA7219_AAD_IRQ_REG_MAX); 922 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A, 923 &mask, DA7219_AAD_IRQ_REG_MAX); 924 925 return 0; 926} 927EXPORT_SYMBOL_GPL(da7219_aad_init); 928 929void da7219_aad_exit(struct snd_soc_component *component) 930{ 931 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 932 struct da7219_aad_priv *da7219_aad = da7219->aad; 933 u8 mask[DA7219_AAD_IRQ_REG_MAX]; 934 935 /* Mask off AAD IRQs */ 936 memset(mask, DA7219_BYTE_MASK, DA7219_AAD_IRQ_REG_MAX); 937 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A, 938 mask, DA7219_AAD_IRQ_REG_MAX); 939 940 free_irq(da7219_aad->irq, da7219_aad); 941 942 cancel_work_sync(&da7219_aad->btn_det_work); 943 cancel_work_sync(&da7219_aad->hptest_work); 944} 945EXPORT_SYMBOL_GPL(da7219_aad_exit); 946 947/* 948 * AAD related I2C probe handling 949 */ 950 951int da7219_aad_probe(struct i2c_client *i2c) 952{ 953 struct da7219_priv *da7219 = i2c_get_clientdata(i2c); 954 struct device *dev = &i2c->dev; 955 struct da7219_aad_priv *da7219_aad; 956 957 da7219_aad = devm_kzalloc(dev, sizeof(*da7219_aad), GFP_KERNEL); 958 if (!da7219_aad) 959 return -ENOMEM; 960 961 da7219->aad = da7219_aad; 962 963 /* Retrieve any DT/ACPI/platform data */ 964 if (da7219->pdata && !da7219->pdata->aad_pdata) 965 da7219->pdata->aad_pdata = da7219_aad_fw_to_pdata(dev); 966 967 return 0; 968} 969EXPORT_SYMBOL_GPL(da7219_aad_probe); 970 971MODULE_DESCRIPTION("ASoC DA7219 AAD Driver"); 972MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>"); 973MODULE_LICENSE("GPL"); 974