1 /* 2 * da7219-aad.c - Dialog DA7219 ALSA SoC AAD Driver 3 * 4 * Copyright (c) 2015 Dialog Semiconductor Ltd. 5 * 6 * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms of the GNU General Public License as published by the 10 * Free Software Foundation; either version 2 of the License, or (at your 11 * option) any later version. 12 */ 13 14 #include <linux/module.h> 15 #include <linux/platform_device.h> 16 #include <linux/clk.h> 17 #include <linux/i2c.h> 18 #include <linux/property.h> 19 #include <linux/pm_wakeirq.h> 20 #include <linux/slab.h> 21 #include <linux/delay.h> 22 #include <linux/workqueue.h> 23 #include <sound/soc.h> 24 #include <sound/jack.h> 25 #include <sound/da7219.h> 26 27 #include "da7219.h" 28 #include "da7219-aad.h" 29 30 31 /* 32 * Detection control 33 */ 34 35 void da7219_aad_jack_det(struct snd_soc_component *component, struct snd_soc_jack *jack) 36 { 37 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 38 39 da7219->aad->jack = jack; 40 da7219->aad->jack_inserted = false; 41 42 /* Send an initial empty report */ 43 snd_soc_jack_report(jack, 0, DA7219_AAD_REPORT_ALL_MASK); 44 45 /* Enable/Disable jack detection */ 46 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, 47 DA7219_ACCDET_EN_MASK, 48 (jack ? DA7219_ACCDET_EN_MASK : 0)); 49 } 50 EXPORT_SYMBOL_GPL(da7219_aad_jack_det); 51 52 /* 53 * Button/HPTest work 54 */ 55 56 static void da7219_aad_btn_det_work(struct work_struct *work) 57 { 58 struct da7219_aad_priv *da7219_aad = 59 container_of(work, struct da7219_aad_priv, btn_det_work); 60 struct snd_soc_component *component = da7219_aad->component; 61 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 62 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 63 u8 statusa, micbias_ctrl; 64 bool micbias_up = false; 65 int retries = 0; 66 67 /* Drive headphones/lineout */ 68 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, 69 DA7219_HP_L_AMP_OE_MASK, 70 DA7219_HP_L_AMP_OE_MASK); 71 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, 72 DA7219_HP_R_AMP_OE_MASK, 73 DA7219_HP_R_AMP_OE_MASK); 74 75 /* Make sure mic bias is up */ 76 snd_soc_dapm_force_enable_pin(dapm, "Mic Bias"); 77 snd_soc_dapm_sync(dapm); 78 79 do { 80 statusa = snd_soc_component_read32(component, DA7219_ACCDET_STATUS_A); 81 if (statusa & DA7219_MICBIAS_UP_STS_MASK) 82 micbias_up = true; 83 else if (retries++ < DA7219_AAD_MICBIAS_CHK_RETRIES) 84 msleep(DA7219_AAD_MICBIAS_CHK_DELAY); 85 } while ((!micbias_up) && (retries < DA7219_AAD_MICBIAS_CHK_RETRIES)); 86 87 if (retries >= DA7219_AAD_MICBIAS_CHK_RETRIES) 88 dev_warn(component->dev, "Mic bias status check timed out"); 89 90 da7219->micbias_on_event = true; 91 92 /* 93 * Mic bias pulse required to enable mic, must be done before enabling 94 * button detection to prevent erroneous button readings. 95 */ 96 if (da7219_aad->micbias_pulse_lvl && da7219_aad->micbias_pulse_time) { 97 /* Pulse higher level voltage */ 98 micbias_ctrl = snd_soc_component_read32(component, DA7219_MICBIAS_CTRL); 99 snd_soc_component_update_bits(component, DA7219_MICBIAS_CTRL, 100 DA7219_MICBIAS1_LEVEL_MASK, 101 da7219_aad->micbias_pulse_lvl); 102 msleep(da7219_aad->micbias_pulse_time); 103 snd_soc_component_write(component, DA7219_MICBIAS_CTRL, micbias_ctrl); 104 105 } 106 107 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, 108 DA7219_BUTTON_CONFIG_MASK, 109 da7219_aad->btn_cfg); 110 } 111 112 static void da7219_aad_hptest_work(struct work_struct *work) 113 { 114 struct da7219_aad_priv *da7219_aad = 115 container_of(work, struct da7219_aad_priv, hptest_work); 116 struct snd_soc_component *component = da7219_aad->component; 117 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 118 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 119 120 u16 tonegen_freq_hptest; 121 u8 pll_srm_sts, pll_ctrl, gain_ramp_ctrl, accdet_cfg8; 122 int report = 0, ret = 0; 123 124 /* Lock DAPM, Kcontrols affected by this test and the PLL */ 125 snd_soc_dapm_mutex_lock(dapm); 126 mutex_lock(&da7219->ctrl_lock); 127 mutex_lock(&da7219->pll_lock); 128 129 /* Ensure MCLK is available for HP test procedure */ 130 if (da7219->mclk) { 131 ret = clk_prepare_enable(da7219->mclk); 132 if (ret) { 133 dev_err(component->dev, "Failed to enable mclk - %d\n", ret); 134 mutex_unlock(&da7219->pll_lock); 135 mutex_unlock(&da7219->ctrl_lock); 136 snd_soc_dapm_mutex_unlock(dapm); 137 return; 138 } 139 } 140 141 /* 142 * If MCLK not present, then we're using the internal oscillator and 143 * require different frequency settings to achieve the same result. 144 * 145 * If MCLK is present, but PLL is not enabled then we enable it here to 146 * ensure a consistent detection procedure. 147 */ 148 pll_srm_sts = snd_soc_component_read32(component, DA7219_PLL_SRM_STS); 149 if (pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) { 150 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ); 151 152 pll_ctrl = snd_soc_component_read32(component, DA7219_PLL_CTRL); 153 if ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS) 154 da7219_set_pll(component, DA7219_SYSCLK_PLL, 155 DA7219_PLL_FREQ_OUT_98304); 156 } else { 157 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ_INT_OSC); 158 } 159 160 /* Ensure gain ramping at fastest rate */ 161 gain_ramp_ctrl = snd_soc_component_read32(component, DA7219_GAIN_RAMP_CTRL); 162 snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL, DA7219_GAIN_RAMP_RATE_X8); 163 164 /* Bypass cache so it saves current settings */ 165 regcache_cache_bypass(da7219->regmap, true); 166 167 /* Make sure Tone Generator is disabled */ 168 snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, 0); 169 170 /* Enable HPTest block, 1KOhms check */ 171 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_8, 172 DA7219_HPTEST_EN_MASK | DA7219_HPTEST_RES_SEL_MASK, 173 DA7219_HPTEST_EN_MASK | 174 DA7219_HPTEST_RES_SEL_1KOHMS); 175 176 /* Set gains to 0db */ 177 snd_soc_component_write(component, DA7219_DAC_L_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB); 178 snd_soc_component_write(component, DA7219_DAC_R_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB); 179 snd_soc_component_write(component, DA7219_HP_L_GAIN, DA7219_HP_AMP_GAIN_0DB); 180 snd_soc_component_write(component, DA7219_HP_R_GAIN, DA7219_HP_AMP_GAIN_0DB); 181 182 /* Disable DAC filters, EQs and soft mute */ 183 snd_soc_component_update_bits(component, DA7219_DAC_FILTERS1, DA7219_HPF_MODE_MASK, 184 0); 185 snd_soc_component_update_bits(component, DA7219_DAC_FILTERS4, DA7219_DAC_EQ_EN_MASK, 186 0); 187 snd_soc_component_update_bits(component, DA7219_DAC_FILTERS5, 188 DA7219_DAC_SOFTMUTE_EN_MASK, 0); 189 190 /* Enable HP left & right paths */ 191 snd_soc_component_update_bits(component, DA7219_CP_CTRL, DA7219_CP_EN_MASK, 192 DA7219_CP_EN_MASK); 193 snd_soc_component_update_bits(component, DA7219_DIG_ROUTING_DAC, 194 DA7219_DAC_L_SRC_MASK | DA7219_DAC_R_SRC_MASK, 195 DA7219_DAC_L_SRC_TONEGEN | 196 DA7219_DAC_R_SRC_TONEGEN); 197 snd_soc_component_update_bits(component, DA7219_DAC_L_CTRL, 198 DA7219_DAC_L_EN_MASK | DA7219_DAC_L_MUTE_EN_MASK, 199 DA7219_DAC_L_EN_MASK); 200 snd_soc_component_update_bits(component, DA7219_DAC_R_CTRL, 201 DA7219_DAC_R_EN_MASK | DA7219_DAC_R_MUTE_EN_MASK, 202 DA7219_DAC_R_EN_MASK); 203 snd_soc_component_update_bits(component, DA7219_MIXOUT_L_SELECT, 204 DA7219_MIXOUT_L_MIX_SELECT_MASK, 205 DA7219_MIXOUT_L_MIX_SELECT_MASK); 206 snd_soc_component_update_bits(component, DA7219_MIXOUT_R_SELECT, 207 DA7219_MIXOUT_R_MIX_SELECT_MASK, 208 DA7219_MIXOUT_R_MIX_SELECT_MASK); 209 snd_soc_component_update_bits(component, DA7219_DROUTING_ST_OUTFILT_1L, 210 DA7219_OUTFILT_ST_1L_SRC_MASK, 211 DA7219_DMIX_ST_SRC_OUTFILT1L); 212 snd_soc_component_update_bits(component, DA7219_DROUTING_ST_OUTFILT_1R, 213 DA7219_OUTFILT_ST_1R_SRC_MASK, 214 DA7219_DMIX_ST_SRC_OUTFILT1R); 215 snd_soc_component_update_bits(component, DA7219_MIXOUT_L_CTRL, 216 DA7219_MIXOUT_L_AMP_EN_MASK, 217 DA7219_MIXOUT_L_AMP_EN_MASK); 218 snd_soc_component_update_bits(component, DA7219_MIXOUT_R_CTRL, 219 DA7219_MIXOUT_R_AMP_EN_MASK, 220 DA7219_MIXOUT_R_AMP_EN_MASK); 221 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, 222 DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK, 223 DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK); 224 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, 225 DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK, 226 DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK); 227 msleep(DA7219_SETTLING_DELAY); 228 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, 229 DA7219_HP_L_AMP_MUTE_EN_MASK | 230 DA7219_HP_L_AMP_MIN_GAIN_EN_MASK, 0); 231 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, 232 DA7219_HP_R_AMP_MUTE_EN_MASK | 233 DA7219_HP_R_AMP_MIN_GAIN_EN_MASK, 0); 234 235 /* 236 * If we're running from the internal oscillator then give audio paths 237 * time to settle before running test. 238 */ 239 if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK)) 240 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY); 241 242 /* Configure & start Tone Generator */ 243 snd_soc_component_write(component, DA7219_TONE_GEN_ON_PER, DA7219_BEEP_ON_PER_MASK); 244 regmap_raw_write(da7219->regmap, DA7219_TONE_GEN_FREQ1_L, 245 &tonegen_freq_hptest, sizeof(tonegen_freq_hptest)); 246 snd_soc_component_update_bits(component, DA7219_TONE_GEN_CFG2, 247 DA7219_SWG_SEL_MASK | DA7219_TONE_GEN_GAIN_MASK, 248 DA7219_SWG_SEL_SRAMP | 249 DA7219_TONE_GEN_GAIN_MINUS_15DB); 250 snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, DA7219_START_STOPN_MASK); 251 252 msleep(DA7219_AAD_HPTEST_PERIOD); 253 254 /* Grab comparator reading */ 255 accdet_cfg8 = snd_soc_component_read32(component, DA7219_ACCDET_CONFIG_8); 256 if (accdet_cfg8 & DA7219_HPTEST_COMP_MASK) 257 report |= SND_JACK_HEADPHONE; 258 else 259 report |= SND_JACK_LINEOUT; 260 261 /* Stop tone generator */ 262 snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, 0); 263 264 msleep(DA7219_AAD_HPTEST_PERIOD); 265 266 /* Restore original settings from cache */ 267 regcache_mark_dirty(da7219->regmap); 268 regcache_sync_region(da7219->regmap, DA7219_HP_L_CTRL, 269 DA7219_HP_R_CTRL); 270 msleep(DA7219_SETTLING_DELAY); 271 regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_CTRL, 272 DA7219_MIXOUT_R_CTRL); 273 regcache_sync_region(da7219->regmap, DA7219_DROUTING_ST_OUTFILT_1L, 274 DA7219_DROUTING_ST_OUTFILT_1R); 275 regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_SELECT, 276 DA7219_MIXOUT_R_SELECT); 277 regcache_sync_region(da7219->regmap, DA7219_DAC_L_CTRL, 278 DA7219_DAC_R_CTRL); 279 regcache_sync_region(da7219->regmap, DA7219_DIG_ROUTING_DAC, 280 DA7219_DIG_ROUTING_DAC); 281 regcache_sync_region(da7219->regmap, DA7219_CP_CTRL, DA7219_CP_CTRL); 282 regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS5, 283 DA7219_DAC_FILTERS5); 284 regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS4, 285 DA7219_DAC_FILTERS1); 286 regcache_sync_region(da7219->regmap, DA7219_HP_L_GAIN, 287 DA7219_HP_R_GAIN); 288 regcache_sync_region(da7219->regmap, DA7219_DAC_L_GAIN, 289 DA7219_DAC_R_GAIN); 290 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_ON_PER, 291 DA7219_TONE_GEN_ON_PER); 292 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_FREQ1_L, 293 DA7219_TONE_GEN_FREQ1_U); 294 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_CFG1, 295 DA7219_TONE_GEN_CFG2); 296 297 regcache_cache_bypass(da7219->regmap, false); 298 299 /* Disable HPTest block */ 300 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_8, 301 DA7219_HPTEST_EN_MASK, 0); 302 303 /* 304 * If we're running from the internal oscillator then give audio paths 305 * time to settle before allowing headphones to be driven as required. 306 */ 307 if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK)) 308 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY); 309 310 /* Restore gain ramping rate */ 311 snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL, gain_ramp_ctrl); 312 313 /* Drive Headphones/lineout */ 314 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, DA7219_HP_L_AMP_OE_MASK, 315 DA7219_HP_L_AMP_OE_MASK); 316 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, DA7219_HP_R_AMP_OE_MASK, 317 DA7219_HP_R_AMP_OE_MASK); 318 319 /* Restore PLL to previous configuration, if re-configured */ 320 if ((pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) && 321 ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS)) 322 da7219_set_pll(component, DA7219_SYSCLK_MCLK, 0); 323 324 /* Remove MCLK, if previously enabled */ 325 if (da7219->mclk) 326 clk_disable_unprepare(da7219->mclk); 327 328 mutex_unlock(&da7219->pll_lock); 329 mutex_unlock(&da7219->ctrl_lock); 330 snd_soc_dapm_mutex_unlock(dapm); 331 332 /* 333 * Only send report if jack hasn't been removed during process, 334 * otherwise it's invalid and we drop it. 335 */ 336 if (da7219_aad->jack_inserted) 337 snd_soc_jack_report(da7219_aad->jack, report, 338 SND_JACK_HEADSET | SND_JACK_LINEOUT); 339 } 340 341 342 /* 343 * IRQ 344 */ 345 346 static irqreturn_t da7219_aad_irq_thread(int irq, void *data) 347 { 348 struct da7219_aad_priv *da7219_aad = data; 349 struct snd_soc_component *component = da7219_aad->component; 350 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 351 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 352 u8 events[DA7219_AAD_IRQ_REG_MAX]; 353 u8 statusa; 354 int i, report = 0, mask = 0; 355 356 /* Read current IRQ events */ 357 regmap_bulk_read(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A, 358 events, DA7219_AAD_IRQ_REG_MAX); 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_read32(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 */ 465 466 static enum da7219_aad_micbias_pulse_lvl 467 da7219_aad_fw_micbias_pulse_lvl(struct snd_soc_component *component, 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(component->dev, "Invalid micbias pulse level"); 476 return DA7219_AAD_MICBIAS_PULSE_LVL_OFF; 477 } 478 } 479 480 static enum da7219_aad_btn_cfg 481 da7219_aad_fw_btn_cfg(struct snd_soc_component *component, 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(component->dev, "Invalid button config"); 500 return DA7219_AAD_BTN_CFG_10MS; 501 } 502 } 503 504 static enum da7219_aad_mic_det_thr 505 da7219_aad_fw_mic_det_thr(struct snd_soc_component *component, 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(component->dev, "Invalid mic detect threshold"); 518 return DA7219_AAD_MIC_DET_THR_500_OHMS; 519 } 520 } 521 522 static enum da7219_aad_jack_ins_deb 523 da7219_aad_fw_jack_ins_deb(struct snd_soc_component *component, 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(component->dev, "Invalid jack insert debounce"); 544 return DA7219_AAD_JACK_INS_DEB_20MS; 545 } 546 } 547 548 static enum da7219_aad_jack_det_rate 549 da7219_aad_fw_jack_det_rate(struct snd_soc_component *component, 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(component->dev, "Invalid jack detect rate"); 561 return DA7219_AAD_JACK_DET_RATE_256_512MS; 562 } 563 } 564 565 static enum da7219_aad_jack_rem_deb 566 da7219_aad_fw_jack_rem_deb(struct snd_soc_component *component, 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(component->dev, "Invalid jack removal debounce"); 579 return DA7219_AAD_JACK_REM_DEB_1MS; 580 } 581 } 582 583 static enum da7219_aad_btn_avg 584 da7219_aad_fw_btn_avg(struct snd_soc_component *component, 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(component->dev, "Invalid button average value"); 597 return DA7219_AAD_BTN_AVG_2; 598 } 599 } 600 601 static enum da7219_aad_adc_1bit_rpt 602 da7219_aad_fw_adc_1bit_rpt(struct snd_soc_component *component, 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(component->dev, "Invalid ADC 1-bit repeat value"); 615 return DA7219_AAD_ADC_1BIT_RPT_1; 616 } 617 } 618 619 static struct da7219_aad_pdata *da7219_aad_fw_to_pdata(struct snd_soc_component *component) 620 { 621 struct device *dev = component->dev; 622 struct i2c_client *i2c = to_i2c_client(dev); 623 struct fwnode_handle *aad_np; 624 struct da7219_aad_pdata *aad_pdata; 625 const char *fw_str; 626 u32 fw_val32; 627 628 aad_np = device_get_named_child_node(dev, "da7219_aad"); 629 if (!aad_np) 630 return NULL; 631 632 aad_pdata = devm_kzalloc(dev, sizeof(*aad_pdata), GFP_KERNEL); 633 if (!aad_pdata) 634 return NULL; 635 636 aad_pdata->irq = i2c->irq; 637 638 if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-lvl", 639 &fw_val32) >= 0) 640 aad_pdata->micbias_pulse_lvl = 641 da7219_aad_fw_micbias_pulse_lvl(component, fw_val32); 642 else 643 aad_pdata->micbias_pulse_lvl = DA7219_AAD_MICBIAS_PULSE_LVL_OFF; 644 645 if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-time", 646 &fw_val32) >= 0) 647 aad_pdata->micbias_pulse_time = fw_val32; 648 649 if (fwnode_property_read_u32(aad_np, "dlg,btn-cfg", &fw_val32) >= 0) 650 aad_pdata->btn_cfg = da7219_aad_fw_btn_cfg(component, fw_val32); 651 else 652 aad_pdata->btn_cfg = DA7219_AAD_BTN_CFG_10MS; 653 654 if (fwnode_property_read_u32(aad_np, "dlg,mic-det-thr", &fw_val32) >= 0) 655 aad_pdata->mic_det_thr = 656 da7219_aad_fw_mic_det_thr(component, fw_val32); 657 else 658 aad_pdata->mic_det_thr = DA7219_AAD_MIC_DET_THR_500_OHMS; 659 660 if (fwnode_property_read_u32(aad_np, "dlg,jack-ins-deb", &fw_val32) >= 0) 661 aad_pdata->jack_ins_deb = 662 da7219_aad_fw_jack_ins_deb(component, fw_val32); 663 else 664 aad_pdata->jack_ins_deb = DA7219_AAD_JACK_INS_DEB_20MS; 665 666 if (!fwnode_property_read_string(aad_np, "dlg,jack-det-rate", &fw_str)) 667 aad_pdata->jack_det_rate = 668 da7219_aad_fw_jack_det_rate(component, fw_str); 669 else 670 aad_pdata->jack_det_rate = DA7219_AAD_JACK_DET_RATE_256_512MS; 671 672 if (fwnode_property_read_u32(aad_np, "dlg,jack-rem-deb", &fw_val32) >= 0) 673 aad_pdata->jack_rem_deb = 674 da7219_aad_fw_jack_rem_deb(component, fw_val32); 675 else 676 aad_pdata->jack_rem_deb = DA7219_AAD_JACK_REM_DEB_1MS; 677 678 if (fwnode_property_read_u32(aad_np, "dlg,a-d-btn-thr", &fw_val32) >= 0) 679 aad_pdata->a_d_btn_thr = (u8) fw_val32; 680 else 681 aad_pdata->a_d_btn_thr = 0xA; 682 683 if (fwnode_property_read_u32(aad_np, "dlg,d-b-btn-thr", &fw_val32) >= 0) 684 aad_pdata->d_b_btn_thr = (u8) fw_val32; 685 else 686 aad_pdata->d_b_btn_thr = 0x16; 687 688 if (fwnode_property_read_u32(aad_np, "dlg,b-c-btn-thr", &fw_val32) >= 0) 689 aad_pdata->b_c_btn_thr = (u8) fw_val32; 690 else 691 aad_pdata->b_c_btn_thr = 0x21; 692 693 if (fwnode_property_read_u32(aad_np, "dlg,c-mic-btn-thr", &fw_val32) >= 0) 694 aad_pdata->c_mic_btn_thr = (u8) fw_val32; 695 else 696 aad_pdata->c_mic_btn_thr = 0x3E; 697 698 if (fwnode_property_read_u32(aad_np, "dlg,btn-avg", &fw_val32) >= 0) 699 aad_pdata->btn_avg = da7219_aad_fw_btn_avg(component, fw_val32); 700 else 701 aad_pdata->btn_avg = DA7219_AAD_BTN_AVG_2; 702 703 if (fwnode_property_read_u32(aad_np, "dlg,adc-1bit-rpt", &fw_val32) >= 0) 704 aad_pdata->adc_1bit_rpt = 705 da7219_aad_fw_adc_1bit_rpt(component, fw_val32); 706 else 707 aad_pdata->adc_1bit_rpt = DA7219_AAD_ADC_1BIT_RPT_1; 708 709 return aad_pdata; 710 } 711 712 static void da7219_aad_handle_pdata(struct snd_soc_component *component) 713 { 714 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 715 struct da7219_aad_priv *da7219_aad = da7219->aad; 716 struct da7219_pdata *pdata = da7219->pdata; 717 718 if ((pdata) && (pdata->aad_pdata)) { 719 struct da7219_aad_pdata *aad_pdata = pdata->aad_pdata; 720 u8 cfg, mask; 721 722 da7219_aad->irq = aad_pdata->irq; 723 724 switch (aad_pdata->micbias_pulse_lvl) { 725 case DA7219_AAD_MICBIAS_PULSE_LVL_2_8V: 726 case DA7219_AAD_MICBIAS_PULSE_LVL_2_9V: 727 da7219_aad->micbias_pulse_lvl = 728 (aad_pdata->micbias_pulse_lvl << 729 DA7219_MICBIAS1_LEVEL_SHIFT); 730 break; 731 default: 732 break; 733 } 734 735 da7219_aad->micbias_pulse_time = aad_pdata->micbias_pulse_time; 736 737 switch (aad_pdata->btn_cfg) { 738 case DA7219_AAD_BTN_CFG_2MS: 739 case DA7219_AAD_BTN_CFG_5MS: 740 case DA7219_AAD_BTN_CFG_10MS: 741 case DA7219_AAD_BTN_CFG_50MS: 742 case DA7219_AAD_BTN_CFG_100MS: 743 case DA7219_AAD_BTN_CFG_200MS: 744 case DA7219_AAD_BTN_CFG_500MS: 745 da7219_aad->btn_cfg = (aad_pdata->btn_cfg << 746 DA7219_BUTTON_CONFIG_SHIFT); 747 } 748 749 cfg = 0; 750 mask = 0; 751 switch (aad_pdata->mic_det_thr) { 752 case DA7219_AAD_MIC_DET_THR_200_OHMS: 753 case DA7219_AAD_MIC_DET_THR_500_OHMS: 754 case DA7219_AAD_MIC_DET_THR_750_OHMS: 755 case DA7219_AAD_MIC_DET_THR_1000_OHMS: 756 cfg |= (aad_pdata->mic_det_thr << 757 DA7219_MIC_DET_THRESH_SHIFT); 758 mask |= DA7219_MIC_DET_THRESH_MASK; 759 } 760 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, mask, cfg); 761 762 cfg = 0; 763 mask = 0; 764 switch (aad_pdata->jack_ins_deb) { 765 case DA7219_AAD_JACK_INS_DEB_5MS: 766 case DA7219_AAD_JACK_INS_DEB_10MS: 767 case DA7219_AAD_JACK_INS_DEB_20MS: 768 case DA7219_AAD_JACK_INS_DEB_50MS: 769 case DA7219_AAD_JACK_INS_DEB_100MS: 770 case DA7219_AAD_JACK_INS_DEB_200MS: 771 case DA7219_AAD_JACK_INS_DEB_500MS: 772 case DA7219_AAD_JACK_INS_DEB_1S: 773 cfg |= (aad_pdata->jack_ins_deb << 774 DA7219_JACKDET_DEBOUNCE_SHIFT); 775 mask |= DA7219_JACKDET_DEBOUNCE_MASK; 776 } 777 switch (aad_pdata->jack_det_rate) { 778 case DA7219_AAD_JACK_DET_RATE_32_64MS: 779 case DA7219_AAD_JACK_DET_RATE_64_128MS: 780 case DA7219_AAD_JACK_DET_RATE_128_256MS: 781 case DA7219_AAD_JACK_DET_RATE_256_512MS: 782 cfg |= (aad_pdata->jack_det_rate << 783 DA7219_JACK_DETECT_RATE_SHIFT); 784 mask |= DA7219_JACK_DETECT_RATE_MASK; 785 } 786 switch (aad_pdata->jack_rem_deb) { 787 case DA7219_AAD_JACK_REM_DEB_1MS: 788 case DA7219_AAD_JACK_REM_DEB_5MS: 789 case DA7219_AAD_JACK_REM_DEB_10MS: 790 case DA7219_AAD_JACK_REM_DEB_20MS: 791 cfg |= (aad_pdata->jack_rem_deb << 792 DA7219_JACKDET_REM_DEB_SHIFT); 793 mask |= DA7219_JACKDET_REM_DEB_MASK; 794 } 795 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_2, mask, cfg); 796 797 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_3, 798 aad_pdata->a_d_btn_thr); 799 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_4, 800 aad_pdata->d_b_btn_thr); 801 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_5, 802 aad_pdata->b_c_btn_thr); 803 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_6, 804 aad_pdata->c_mic_btn_thr); 805 806 cfg = 0; 807 mask = 0; 808 switch (aad_pdata->btn_avg) { 809 case DA7219_AAD_BTN_AVG_1: 810 case DA7219_AAD_BTN_AVG_2: 811 case DA7219_AAD_BTN_AVG_4: 812 case DA7219_AAD_BTN_AVG_8: 813 cfg |= (aad_pdata->btn_avg << 814 DA7219_BUTTON_AVERAGE_SHIFT); 815 mask |= DA7219_BUTTON_AVERAGE_MASK; 816 } 817 switch (aad_pdata->adc_1bit_rpt) { 818 case DA7219_AAD_ADC_1BIT_RPT_1: 819 case DA7219_AAD_ADC_1BIT_RPT_2: 820 case DA7219_AAD_ADC_1BIT_RPT_4: 821 case DA7219_AAD_ADC_1BIT_RPT_8: 822 cfg |= (aad_pdata->adc_1bit_rpt << 823 DA7219_ADC_1_BIT_REPEAT_SHIFT); 824 mask |= DA7219_ADC_1_BIT_REPEAT_MASK; 825 } 826 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_7, mask, cfg); 827 } 828 } 829 830 831 /* 832 * Suspend/Resume 833 */ 834 835 void da7219_aad_suspend(struct snd_soc_component *component) 836 { 837 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 838 struct da7219_aad_priv *da7219_aad = da7219->aad; 839 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 840 u8 micbias_ctrl; 841 842 if (da7219_aad->jack) { 843 /* Disable jack detection during suspend */ 844 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, 845 DA7219_ACCDET_EN_MASK, 0); 846 847 /* 848 * If we have a 4-pole jack inserted, then micbias will be 849 * enabled. We can disable micbias here, and keep a note to 850 * re-enable it on resume. If jack removal occurred during 851 * suspend then this will be dealt with through the IRQ handler. 852 */ 853 if (da7219_aad->jack_inserted) { 854 micbias_ctrl = snd_soc_component_read32(component, DA7219_MICBIAS_CTRL); 855 if (micbias_ctrl & DA7219_MICBIAS1_EN_MASK) { 856 snd_soc_dapm_disable_pin(dapm, "Mic Bias"); 857 snd_soc_dapm_sync(dapm); 858 da7219_aad->micbias_resume_enable = true; 859 } 860 } 861 } 862 } 863 864 void da7219_aad_resume(struct snd_soc_component *component) 865 { 866 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 867 struct da7219_aad_priv *da7219_aad = da7219->aad; 868 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 869 870 if (da7219_aad->jack) { 871 /* Re-enable micbias if previously enabled for 4-pole jack */ 872 if (da7219_aad->jack_inserted && 873 da7219_aad->micbias_resume_enable) { 874 snd_soc_dapm_force_enable_pin(dapm, "Mic Bias"); 875 snd_soc_dapm_sync(dapm); 876 da7219_aad->micbias_resume_enable = false; 877 } 878 879 /* Re-enable jack detection */ 880 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, 881 DA7219_ACCDET_EN_MASK, 882 DA7219_ACCDET_EN_MASK); 883 } 884 } 885 886 887 /* 888 * Init/Exit 889 */ 890 891 int da7219_aad_init(struct snd_soc_component *component) 892 { 893 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 894 struct da7219_aad_priv *da7219_aad; 895 u8 mask[DA7219_AAD_IRQ_REG_MAX]; 896 int ret; 897 898 da7219_aad = devm_kzalloc(component->dev, sizeof(*da7219_aad), GFP_KERNEL); 899 if (!da7219_aad) 900 return -ENOMEM; 901 902 da7219->aad = da7219_aad; 903 da7219_aad->component = component; 904 905 /* Handle any DT/ACPI/platform data */ 906 if (da7219->pdata && !da7219->pdata->aad_pdata) 907 da7219->pdata->aad_pdata = da7219_aad_fw_to_pdata(component); 908 909 da7219_aad_handle_pdata(component); 910 911 /* Disable button detection */ 912 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, 913 DA7219_BUTTON_CONFIG_MASK, 0); 914 915 INIT_WORK(&da7219_aad->btn_det_work, da7219_aad_btn_det_work); 916 INIT_WORK(&da7219_aad->hptest_work, da7219_aad_hptest_work); 917 918 ret = request_threaded_irq(da7219_aad->irq, NULL, 919 da7219_aad_irq_thread, 920 IRQF_TRIGGER_LOW | IRQF_ONESHOT, 921 "da7219-aad", da7219_aad); 922 if (ret) { 923 dev_err(component->dev, "Failed to request IRQ: %d\n", ret); 924 return ret; 925 } 926 927 /* Unmask AAD IRQs */ 928 memset(mask, 0, DA7219_AAD_IRQ_REG_MAX); 929 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A, 930 &mask, DA7219_AAD_IRQ_REG_MAX); 931 932 return 0; 933 } 934 EXPORT_SYMBOL_GPL(da7219_aad_init); 935 936 void da7219_aad_exit(struct snd_soc_component *component) 937 { 938 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 939 struct da7219_aad_priv *da7219_aad = da7219->aad; 940 u8 mask[DA7219_AAD_IRQ_REG_MAX]; 941 942 /* Mask off AAD IRQs */ 943 memset(mask, DA7219_BYTE_MASK, DA7219_AAD_IRQ_REG_MAX); 944 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A, 945 mask, DA7219_AAD_IRQ_REG_MAX); 946 947 free_irq(da7219_aad->irq, da7219_aad); 948 949 cancel_work_sync(&da7219_aad->btn_det_work); 950 cancel_work_sync(&da7219_aad->hptest_work); 951 } 952 EXPORT_SYMBOL_GPL(da7219_aad_exit); 953 954 MODULE_DESCRIPTION("ASoC DA7219 AAD Driver"); 955 MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>"); 956 MODULE_LICENSE("GPL"); 957