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 u8 statusa, micbias_ctrl; 63 bool micbias_up = false; 64 int retries = 0; 65 66 /* Drive headphones/lineout */ 67 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, 68 DA7219_HP_L_AMP_OE_MASK, 69 DA7219_HP_L_AMP_OE_MASK); 70 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, 71 DA7219_HP_R_AMP_OE_MASK, 72 DA7219_HP_R_AMP_OE_MASK); 73 74 /* Make sure mic bias is up */ 75 snd_soc_dapm_force_enable_pin(dapm, "Mic Bias"); 76 snd_soc_dapm_sync(dapm); 77 78 do { 79 statusa = snd_soc_component_read32(component, DA7219_ACCDET_STATUS_A); 80 if (statusa & DA7219_MICBIAS_UP_STS_MASK) 81 micbias_up = true; 82 else if (retries++ < DA7219_AAD_MICBIAS_CHK_RETRIES) 83 msleep(DA7219_AAD_MICBIAS_CHK_DELAY); 84 } while ((!micbias_up) && (retries < DA7219_AAD_MICBIAS_CHK_RETRIES)); 85 86 if (retries >= DA7219_AAD_MICBIAS_CHK_RETRIES) 87 dev_warn(component->dev, "Mic bias status check timed out"); 88 89 /* 90 * Mic bias pulse required to enable mic, must be done before enabling 91 * button detection to prevent erroneous button readings. 92 */ 93 if (da7219_aad->micbias_pulse_lvl && da7219_aad->micbias_pulse_time) { 94 /* Pulse higher level voltage */ 95 micbias_ctrl = snd_soc_component_read32(component, DA7219_MICBIAS_CTRL); 96 snd_soc_component_update_bits(component, DA7219_MICBIAS_CTRL, 97 DA7219_MICBIAS1_LEVEL_MASK, 98 da7219_aad->micbias_pulse_lvl); 99 msleep(da7219_aad->micbias_pulse_time); 100 snd_soc_component_write(component, DA7219_MICBIAS_CTRL, micbias_ctrl); 101 102 } 103 104 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, 105 DA7219_BUTTON_CONFIG_MASK, 106 da7219_aad->btn_cfg); 107 } 108 109 static void da7219_aad_hptest_work(struct work_struct *work) 110 { 111 struct da7219_aad_priv *da7219_aad = 112 container_of(work, struct da7219_aad_priv, hptest_work); 113 struct snd_soc_component *component = da7219_aad->component; 114 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 115 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 116 117 u16 tonegen_freq_hptest; 118 u8 pll_srm_sts, pll_ctrl, gain_ramp_ctrl, accdet_cfg8; 119 int report = 0, ret = 0; 120 121 /* Lock DAPM, Kcontrols affected by this test and the PLL */ 122 snd_soc_dapm_mutex_lock(dapm); 123 mutex_lock(&da7219->ctrl_lock); 124 mutex_lock(&da7219->pll_lock); 125 126 /* Ensure MCLK is available for HP test procedure */ 127 if (da7219->mclk) { 128 ret = clk_prepare_enable(da7219->mclk); 129 if (ret) { 130 dev_err(component->dev, "Failed to enable mclk - %d\n", ret); 131 mutex_unlock(&da7219->pll_lock); 132 mutex_unlock(&da7219->ctrl_lock); 133 snd_soc_dapm_mutex_unlock(dapm); 134 return; 135 } 136 } 137 138 /* 139 * If MCLK not present, then we're using the internal oscillator and 140 * require different frequency settings to achieve the same result. 141 * 142 * If MCLK is present, but PLL is not enabled then we enable it here to 143 * ensure a consistent detection procedure. 144 */ 145 pll_srm_sts = snd_soc_component_read32(component, DA7219_PLL_SRM_STS); 146 if (pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) { 147 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ); 148 149 pll_ctrl = snd_soc_component_read32(component, DA7219_PLL_CTRL); 150 if ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS) 151 da7219_set_pll(component, DA7219_SYSCLK_PLL, 152 DA7219_PLL_FREQ_OUT_98304); 153 } else { 154 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ_INT_OSC); 155 } 156 157 /* Ensure gain ramping at fastest rate */ 158 gain_ramp_ctrl = snd_soc_component_read32(component, DA7219_GAIN_RAMP_CTRL); 159 snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL, DA7219_GAIN_RAMP_RATE_X8); 160 161 /* Bypass cache so it saves current settings */ 162 regcache_cache_bypass(da7219->regmap, true); 163 164 /* Make sure Tone Generator is disabled */ 165 snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, 0); 166 167 /* Enable HPTest block, 1KOhms check */ 168 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_8, 169 DA7219_HPTEST_EN_MASK | DA7219_HPTEST_RES_SEL_MASK, 170 DA7219_HPTEST_EN_MASK | 171 DA7219_HPTEST_RES_SEL_1KOHMS); 172 173 /* Set gains to 0db */ 174 snd_soc_component_write(component, DA7219_DAC_L_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB); 175 snd_soc_component_write(component, DA7219_DAC_R_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB); 176 snd_soc_component_write(component, DA7219_HP_L_GAIN, DA7219_HP_AMP_GAIN_0DB); 177 snd_soc_component_write(component, DA7219_HP_R_GAIN, DA7219_HP_AMP_GAIN_0DB); 178 179 /* Disable DAC filters, EQs and soft mute */ 180 snd_soc_component_update_bits(component, DA7219_DAC_FILTERS1, DA7219_HPF_MODE_MASK, 181 0); 182 snd_soc_component_update_bits(component, DA7219_DAC_FILTERS4, DA7219_DAC_EQ_EN_MASK, 183 0); 184 snd_soc_component_update_bits(component, DA7219_DAC_FILTERS5, 185 DA7219_DAC_SOFTMUTE_EN_MASK, 0); 186 187 /* Enable HP left & right paths */ 188 snd_soc_component_update_bits(component, DA7219_CP_CTRL, DA7219_CP_EN_MASK, 189 DA7219_CP_EN_MASK); 190 snd_soc_component_update_bits(component, DA7219_DIG_ROUTING_DAC, 191 DA7219_DAC_L_SRC_MASK | DA7219_DAC_R_SRC_MASK, 192 DA7219_DAC_L_SRC_TONEGEN | 193 DA7219_DAC_R_SRC_TONEGEN); 194 snd_soc_component_update_bits(component, DA7219_DAC_L_CTRL, 195 DA7219_DAC_L_EN_MASK | DA7219_DAC_L_MUTE_EN_MASK, 196 DA7219_DAC_L_EN_MASK); 197 snd_soc_component_update_bits(component, DA7219_DAC_R_CTRL, 198 DA7219_DAC_R_EN_MASK | DA7219_DAC_R_MUTE_EN_MASK, 199 DA7219_DAC_R_EN_MASK); 200 snd_soc_component_update_bits(component, DA7219_MIXOUT_L_SELECT, 201 DA7219_MIXOUT_L_MIX_SELECT_MASK, 202 DA7219_MIXOUT_L_MIX_SELECT_MASK); 203 snd_soc_component_update_bits(component, DA7219_MIXOUT_R_SELECT, 204 DA7219_MIXOUT_R_MIX_SELECT_MASK, 205 DA7219_MIXOUT_R_MIX_SELECT_MASK); 206 snd_soc_component_update_bits(component, DA7219_DROUTING_ST_OUTFILT_1L, 207 DA7219_OUTFILT_ST_1L_SRC_MASK, 208 DA7219_DMIX_ST_SRC_OUTFILT1L); 209 snd_soc_component_update_bits(component, DA7219_DROUTING_ST_OUTFILT_1R, 210 DA7219_OUTFILT_ST_1R_SRC_MASK, 211 DA7219_DMIX_ST_SRC_OUTFILT1R); 212 snd_soc_component_update_bits(component, DA7219_MIXOUT_L_CTRL, 213 DA7219_MIXOUT_L_AMP_EN_MASK, 214 DA7219_MIXOUT_L_AMP_EN_MASK); 215 snd_soc_component_update_bits(component, DA7219_MIXOUT_R_CTRL, 216 DA7219_MIXOUT_R_AMP_EN_MASK, 217 DA7219_MIXOUT_R_AMP_EN_MASK); 218 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, 219 DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK, 220 DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK); 221 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, 222 DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK, 223 DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK); 224 msleep(DA7219_SETTLING_DELAY); 225 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, 226 DA7219_HP_L_AMP_MUTE_EN_MASK | 227 DA7219_HP_L_AMP_MIN_GAIN_EN_MASK, 0); 228 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, 229 DA7219_HP_R_AMP_MUTE_EN_MASK | 230 DA7219_HP_R_AMP_MIN_GAIN_EN_MASK, 0); 231 232 /* 233 * If we're running from the internal oscillator then give audio paths 234 * time to settle before running test. 235 */ 236 if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK)) 237 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY); 238 239 /* Configure & start Tone Generator */ 240 snd_soc_component_write(component, DA7219_TONE_GEN_ON_PER, DA7219_BEEP_ON_PER_MASK); 241 regmap_raw_write(da7219->regmap, DA7219_TONE_GEN_FREQ1_L, 242 &tonegen_freq_hptest, sizeof(tonegen_freq_hptest)); 243 snd_soc_component_update_bits(component, DA7219_TONE_GEN_CFG2, 244 DA7219_SWG_SEL_MASK | DA7219_TONE_GEN_GAIN_MASK, 245 DA7219_SWG_SEL_SRAMP | 246 DA7219_TONE_GEN_GAIN_MINUS_15DB); 247 snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, DA7219_START_STOPN_MASK); 248 249 msleep(DA7219_AAD_HPTEST_PERIOD); 250 251 /* Grab comparator reading */ 252 accdet_cfg8 = snd_soc_component_read32(component, DA7219_ACCDET_CONFIG_8); 253 if (accdet_cfg8 & DA7219_HPTEST_COMP_MASK) 254 report |= SND_JACK_HEADPHONE; 255 else 256 report |= SND_JACK_LINEOUT; 257 258 /* Stop tone generator */ 259 snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, 0); 260 261 msleep(DA7219_AAD_HPTEST_PERIOD); 262 263 /* Restore original settings from cache */ 264 regcache_mark_dirty(da7219->regmap); 265 regcache_sync_region(da7219->regmap, DA7219_HP_L_CTRL, 266 DA7219_HP_R_CTRL); 267 msleep(DA7219_SETTLING_DELAY); 268 regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_CTRL, 269 DA7219_MIXOUT_R_CTRL); 270 regcache_sync_region(da7219->regmap, DA7219_DROUTING_ST_OUTFILT_1L, 271 DA7219_DROUTING_ST_OUTFILT_1R); 272 regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_SELECT, 273 DA7219_MIXOUT_R_SELECT); 274 regcache_sync_region(da7219->regmap, DA7219_DAC_L_CTRL, 275 DA7219_DAC_R_CTRL); 276 regcache_sync_region(da7219->regmap, DA7219_DIG_ROUTING_DAC, 277 DA7219_DIG_ROUTING_DAC); 278 regcache_sync_region(da7219->regmap, DA7219_CP_CTRL, DA7219_CP_CTRL); 279 regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS5, 280 DA7219_DAC_FILTERS5); 281 regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS4, 282 DA7219_DAC_FILTERS1); 283 regcache_sync_region(da7219->regmap, DA7219_HP_L_GAIN, 284 DA7219_HP_R_GAIN); 285 regcache_sync_region(da7219->regmap, DA7219_DAC_L_GAIN, 286 DA7219_DAC_R_GAIN); 287 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_ON_PER, 288 DA7219_TONE_GEN_ON_PER); 289 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_FREQ1_L, 290 DA7219_TONE_GEN_FREQ1_U); 291 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_CFG1, 292 DA7219_TONE_GEN_CFG2); 293 294 regcache_cache_bypass(da7219->regmap, false); 295 296 /* Disable HPTest block */ 297 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_8, 298 DA7219_HPTEST_EN_MASK, 0); 299 300 /* 301 * If we're running from the internal oscillator then give audio paths 302 * time to settle before allowing headphones to be driven as required. 303 */ 304 if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK)) 305 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY); 306 307 /* Restore gain ramping rate */ 308 snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL, gain_ramp_ctrl); 309 310 /* Drive Headphones/lineout */ 311 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, DA7219_HP_L_AMP_OE_MASK, 312 DA7219_HP_L_AMP_OE_MASK); 313 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, DA7219_HP_R_AMP_OE_MASK, 314 DA7219_HP_R_AMP_OE_MASK); 315 316 /* Restore PLL to previous configuration, if re-configured */ 317 if ((pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) && 318 ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS)) 319 da7219_set_pll(component, DA7219_SYSCLK_MCLK, 0); 320 321 /* Remove MCLK, if previously enabled */ 322 if (da7219->mclk) 323 clk_disable_unprepare(da7219->mclk); 324 325 mutex_unlock(&da7219->pll_lock); 326 mutex_unlock(&da7219->ctrl_lock); 327 snd_soc_dapm_mutex_unlock(dapm); 328 329 /* 330 * Only send report if jack hasn't been removed during process, 331 * otherwise it's invalid and we drop it. 332 */ 333 if (da7219_aad->jack_inserted) 334 snd_soc_jack_report(da7219_aad->jack, report, 335 SND_JACK_HEADSET | SND_JACK_LINEOUT); 336 } 337 338 339 /* 340 * IRQ 341 */ 342 343 static irqreturn_t da7219_aad_irq_thread(int irq, void *data) 344 { 345 struct da7219_aad_priv *da7219_aad = data; 346 struct snd_soc_component *component = da7219_aad->component; 347 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 348 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 349 u8 events[DA7219_AAD_IRQ_REG_MAX]; 350 u8 statusa; 351 int i, report = 0, mask = 0; 352 353 /* Read current IRQ events */ 354 regmap_bulk_read(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A, 355 events, DA7219_AAD_IRQ_REG_MAX); 356 357 if (!events[DA7219_AAD_IRQ_REG_A] && !events[DA7219_AAD_IRQ_REG_B]) 358 return IRQ_NONE; 359 360 /* Read status register for jack insertion & type status */ 361 statusa = snd_soc_component_read32(component, DA7219_ACCDET_STATUS_A); 362 363 /* Clear events */ 364 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A, 365 events, DA7219_AAD_IRQ_REG_MAX); 366 367 dev_dbg(component->dev, "IRQ events = 0x%x|0x%x, status = 0x%x\n", 368 events[DA7219_AAD_IRQ_REG_A], events[DA7219_AAD_IRQ_REG_B], 369 statusa); 370 371 if (statusa & DA7219_JACK_INSERTION_STS_MASK) { 372 /* Jack Insertion */ 373 if (events[DA7219_AAD_IRQ_REG_A] & 374 DA7219_E_JACK_INSERTED_MASK) { 375 report |= SND_JACK_MECHANICAL; 376 mask |= SND_JACK_MECHANICAL; 377 da7219_aad->jack_inserted = true; 378 } 379 380 /* Jack type detection */ 381 if (events[DA7219_AAD_IRQ_REG_A] & 382 DA7219_E_JACK_DETECT_COMPLETE_MASK) { 383 /* 384 * If 4-pole, then enable button detection, else perform 385 * HP impedance test to determine output type to report. 386 * 387 * We schedule work here as the tasks themselves can 388 * take time to complete, and in particular for hptest 389 * we want to be able to check if the jack was removed 390 * during the procedure as this will invalidate the 391 * result. By doing this as work, the IRQ thread can 392 * handle a removal, and we can check at the end of 393 * hptest if we have a valid result or not. 394 */ 395 if (statusa & DA7219_JACK_TYPE_STS_MASK) { 396 report |= SND_JACK_HEADSET; 397 mask |= SND_JACK_HEADSET | SND_JACK_LINEOUT; 398 schedule_work(&da7219_aad->btn_det_work); 399 } else { 400 schedule_work(&da7219_aad->hptest_work); 401 } 402 } 403 404 /* Button support for 4-pole jack */ 405 if (statusa & DA7219_JACK_TYPE_STS_MASK) { 406 for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) { 407 /* Button Press */ 408 if (events[DA7219_AAD_IRQ_REG_B] & 409 (DA7219_E_BUTTON_A_PRESSED_MASK << i)) { 410 report |= SND_JACK_BTN_0 >> i; 411 mask |= SND_JACK_BTN_0 >> i; 412 } 413 } 414 snd_soc_jack_report(da7219_aad->jack, report, mask); 415 416 for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) { 417 /* Button Release */ 418 if (events[DA7219_AAD_IRQ_REG_B] & 419 (DA7219_E_BUTTON_A_RELEASED_MASK >> i)) { 420 report &= ~(SND_JACK_BTN_0 >> i); 421 mask |= SND_JACK_BTN_0 >> i; 422 } 423 } 424 } 425 } else { 426 /* Jack removal */ 427 if (events[DA7219_AAD_IRQ_REG_A] & DA7219_E_JACK_REMOVED_MASK) { 428 report = 0; 429 mask |= DA7219_AAD_REPORT_ALL_MASK; 430 da7219_aad->jack_inserted = false; 431 432 /* Un-drive headphones/lineout */ 433 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, 434 DA7219_HP_R_AMP_OE_MASK, 0); 435 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, 436 DA7219_HP_L_AMP_OE_MASK, 0); 437 438 /* Ensure button detection disabled */ 439 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, 440 DA7219_BUTTON_CONFIG_MASK, 0); 441 442 /* Disable mic bias */ 443 snd_soc_dapm_disable_pin(dapm, "Mic Bias"); 444 snd_soc_dapm_sync(dapm); 445 446 /* Cancel any pending work */ 447 cancel_work_sync(&da7219_aad->btn_det_work); 448 cancel_work_sync(&da7219_aad->hptest_work); 449 } 450 } 451 452 snd_soc_jack_report(da7219_aad->jack, report, mask); 453 454 return IRQ_HANDLED; 455 } 456 457 /* 458 * DT/ACPI to pdata conversion 459 */ 460 461 static enum da7219_aad_micbias_pulse_lvl 462 da7219_aad_fw_micbias_pulse_lvl(struct snd_soc_component *component, u32 val) 463 { 464 switch (val) { 465 case 2800: 466 return DA7219_AAD_MICBIAS_PULSE_LVL_2_8V; 467 case 2900: 468 return DA7219_AAD_MICBIAS_PULSE_LVL_2_9V; 469 default: 470 dev_warn(component->dev, "Invalid micbias pulse level"); 471 return DA7219_AAD_MICBIAS_PULSE_LVL_OFF; 472 } 473 } 474 475 static enum da7219_aad_btn_cfg 476 da7219_aad_fw_btn_cfg(struct snd_soc_component *component, u32 val) 477 { 478 switch (val) { 479 case 2: 480 return DA7219_AAD_BTN_CFG_2MS; 481 case 5: 482 return DA7219_AAD_BTN_CFG_5MS; 483 case 10: 484 return DA7219_AAD_BTN_CFG_10MS; 485 case 50: 486 return DA7219_AAD_BTN_CFG_50MS; 487 case 100: 488 return DA7219_AAD_BTN_CFG_100MS; 489 case 200: 490 return DA7219_AAD_BTN_CFG_200MS; 491 case 500: 492 return DA7219_AAD_BTN_CFG_500MS; 493 default: 494 dev_warn(component->dev, "Invalid button config"); 495 return DA7219_AAD_BTN_CFG_10MS; 496 } 497 } 498 499 static enum da7219_aad_mic_det_thr 500 da7219_aad_fw_mic_det_thr(struct snd_soc_component *component, u32 val) 501 { 502 switch (val) { 503 case 200: 504 return DA7219_AAD_MIC_DET_THR_200_OHMS; 505 case 500: 506 return DA7219_AAD_MIC_DET_THR_500_OHMS; 507 case 750: 508 return DA7219_AAD_MIC_DET_THR_750_OHMS; 509 case 1000: 510 return DA7219_AAD_MIC_DET_THR_1000_OHMS; 511 default: 512 dev_warn(component->dev, "Invalid mic detect threshold"); 513 return DA7219_AAD_MIC_DET_THR_500_OHMS; 514 } 515 } 516 517 static enum da7219_aad_jack_ins_deb 518 da7219_aad_fw_jack_ins_deb(struct snd_soc_component *component, u32 val) 519 { 520 switch (val) { 521 case 5: 522 return DA7219_AAD_JACK_INS_DEB_5MS; 523 case 10: 524 return DA7219_AAD_JACK_INS_DEB_10MS; 525 case 20: 526 return DA7219_AAD_JACK_INS_DEB_20MS; 527 case 50: 528 return DA7219_AAD_JACK_INS_DEB_50MS; 529 case 100: 530 return DA7219_AAD_JACK_INS_DEB_100MS; 531 case 200: 532 return DA7219_AAD_JACK_INS_DEB_200MS; 533 case 500: 534 return DA7219_AAD_JACK_INS_DEB_500MS; 535 case 1000: 536 return DA7219_AAD_JACK_INS_DEB_1S; 537 default: 538 dev_warn(component->dev, "Invalid jack insert debounce"); 539 return DA7219_AAD_JACK_INS_DEB_20MS; 540 } 541 } 542 543 static enum da7219_aad_jack_det_rate 544 da7219_aad_fw_jack_det_rate(struct snd_soc_component *component, const char *str) 545 { 546 if (!strcmp(str, "32ms_64ms")) { 547 return DA7219_AAD_JACK_DET_RATE_32_64MS; 548 } else if (!strcmp(str, "64ms_128ms")) { 549 return DA7219_AAD_JACK_DET_RATE_64_128MS; 550 } else if (!strcmp(str, "128ms_256ms")) { 551 return DA7219_AAD_JACK_DET_RATE_128_256MS; 552 } else if (!strcmp(str, "256ms_512ms")) { 553 return DA7219_AAD_JACK_DET_RATE_256_512MS; 554 } else { 555 dev_warn(component->dev, "Invalid jack detect rate"); 556 return DA7219_AAD_JACK_DET_RATE_256_512MS; 557 } 558 } 559 560 static enum da7219_aad_jack_rem_deb 561 da7219_aad_fw_jack_rem_deb(struct snd_soc_component *component, u32 val) 562 { 563 switch (val) { 564 case 1: 565 return DA7219_AAD_JACK_REM_DEB_1MS; 566 case 5: 567 return DA7219_AAD_JACK_REM_DEB_5MS; 568 case 10: 569 return DA7219_AAD_JACK_REM_DEB_10MS; 570 case 20: 571 return DA7219_AAD_JACK_REM_DEB_20MS; 572 default: 573 dev_warn(component->dev, "Invalid jack removal debounce"); 574 return DA7219_AAD_JACK_REM_DEB_1MS; 575 } 576 } 577 578 static enum da7219_aad_btn_avg 579 da7219_aad_fw_btn_avg(struct snd_soc_component *component, u32 val) 580 { 581 switch (val) { 582 case 1: 583 return DA7219_AAD_BTN_AVG_1; 584 case 2: 585 return DA7219_AAD_BTN_AVG_2; 586 case 4: 587 return DA7219_AAD_BTN_AVG_4; 588 case 8: 589 return DA7219_AAD_BTN_AVG_8; 590 default: 591 dev_warn(component->dev, "Invalid button average value"); 592 return DA7219_AAD_BTN_AVG_2; 593 } 594 } 595 596 static enum da7219_aad_adc_1bit_rpt 597 da7219_aad_fw_adc_1bit_rpt(struct snd_soc_component *component, u32 val) 598 { 599 switch (val) { 600 case 1: 601 return DA7219_AAD_ADC_1BIT_RPT_1; 602 case 2: 603 return DA7219_AAD_ADC_1BIT_RPT_2; 604 case 4: 605 return DA7219_AAD_ADC_1BIT_RPT_4; 606 case 8: 607 return DA7219_AAD_ADC_1BIT_RPT_8; 608 default: 609 dev_warn(component->dev, "Invalid ADC 1-bit repeat value"); 610 return DA7219_AAD_ADC_1BIT_RPT_1; 611 } 612 } 613 614 static struct da7219_aad_pdata *da7219_aad_fw_to_pdata(struct snd_soc_component *component) 615 { 616 struct device *dev = component->dev; 617 struct i2c_client *i2c = to_i2c_client(dev); 618 struct fwnode_handle *aad_np; 619 struct da7219_aad_pdata *aad_pdata; 620 const char *fw_str; 621 u32 fw_val32; 622 623 aad_np = device_get_named_child_node(dev, "da7219_aad"); 624 if (!aad_np) 625 return NULL; 626 627 aad_pdata = devm_kzalloc(dev, sizeof(*aad_pdata), GFP_KERNEL); 628 if (!aad_pdata) 629 return NULL; 630 631 aad_pdata->irq = i2c->irq; 632 633 if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-lvl", 634 &fw_val32) >= 0) 635 aad_pdata->micbias_pulse_lvl = 636 da7219_aad_fw_micbias_pulse_lvl(component, fw_val32); 637 else 638 aad_pdata->micbias_pulse_lvl = DA7219_AAD_MICBIAS_PULSE_LVL_OFF; 639 640 if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-time", 641 &fw_val32) >= 0) 642 aad_pdata->micbias_pulse_time = fw_val32; 643 644 if (fwnode_property_read_u32(aad_np, "dlg,btn-cfg", &fw_val32) >= 0) 645 aad_pdata->btn_cfg = da7219_aad_fw_btn_cfg(component, fw_val32); 646 else 647 aad_pdata->btn_cfg = DA7219_AAD_BTN_CFG_10MS; 648 649 if (fwnode_property_read_u32(aad_np, "dlg,mic-det-thr", &fw_val32) >= 0) 650 aad_pdata->mic_det_thr = 651 da7219_aad_fw_mic_det_thr(component, fw_val32); 652 else 653 aad_pdata->mic_det_thr = DA7219_AAD_MIC_DET_THR_500_OHMS; 654 655 if (fwnode_property_read_u32(aad_np, "dlg,jack-ins-deb", &fw_val32) >= 0) 656 aad_pdata->jack_ins_deb = 657 da7219_aad_fw_jack_ins_deb(component, fw_val32); 658 else 659 aad_pdata->jack_ins_deb = DA7219_AAD_JACK_INS_DEB_20MS; 660 661 if (!fwnode_property_read_string(aad_np, "dlg,jack-det-rate", &fw_str)) 662 aad_pdata->jack_det_rate = 663 da7219_aad_fw_jack_det_rate(component, fw_str); 664 else 665 aad_pdata->jack_det_rate = DA7219_AAD_JACK_DET_RATE_256_512MS; 666 667 if (fwnode_property_read_u32(aad_np, "dlg,jack-rem-deb", &fw_val32) >= 0) 668 aad_pdata->jack_rem_deb = 669 da7219_aad_fw_jack_rem_deb(component, fw_val32); 670 else 671 aad_pdata->jack_rem_deb = DA7219_AAD_JACK_REM_DEB_1MS; 672 673 if (fwnode_property_read_u32(aad_np, "dlg,a-d-btn-thr", &fw_val32) >= 0) 674 aad_pdata->a_d_btn_thr = (u8) fw_val32; 675 else 676 aad_pdata->a_d_btn_thr = 0xA; 677 678 if (fwnode_property_read_u32(aad_np, "dlg,d-b-btn-thr", &fw_val32) >= 0) 679 aad_pdata->d_b_btn_thr = (u8) fw_val32; 680 else 681 aad_pdata->d_b_btn_thr = 0x16; 682 683 if (fwnode_property_read_u32(aad_np, "dlg,b-c-btn-thr", &fw_val32) >= 0) 684 aad_pdata->b_c_btn_thr = (u8) fw_val32; 685 else 686 aad_pdata->b_c_btn_thr = 0x21; 687 688 if (fwnode_property_read_u32(aad_np, "dlg,c-mic-btn-thr", &fw_val32) >= 0) 689 aad_pdata->c_mic_btn_thr = (u8) fw_val32; 690 else 691 aad_pdata->c_mic_btn_thr = 0x3E; 692 693 if (fwnode_property_read_u32(aad_np, "dlg,btn-avg", &fw_val32) >= 0) 694 aad_pdata->btn_avg = da7219_aad_fw_btn_avg(component, fw_val32); 695 else 696 aad_pdata->btn_avg = DA7219_AAD_BTN_AVG_2; 697 698 if (fwnode_property_read_u32(aad_np, "dlg,adc-1bit-rpt", &fw_val32) >= 0) 699 aad_pdata->adc_1bit_rpt = 700 da7219_aad_fw_adc_1bit_rpt(component, fw_val32); 701 else 702 aad_pdata->adc_1bit_rpt = DA7219_AAD_ADC_1BIT_RPT_1; 703 704 return aad_pdata; 705 } 706 707 static void da7219_aad_handle_pdata(struct snd_soc_component *component) 708 { 709 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 710 struct da7219_aad_priv *da7219_aad = da7219->aad; 711 struct da7219_pdata *pdata = da7219->pdata; 712 713 if ((pdata) && (pdata->aad_pdata)) { 714 struct da7219_aad_pdata *aad_pdata = pdata->aad_pdata; 715 u8 cfg, mask; 716 717 da7219_aad->irq = aad_pdata->irq; 718 719 switch (aad_pdata->micbias_pulse_lvl) { 720 case DA7219_AAD_MICBIAS_PULSE_LVL_2_8V: 721 case DA7219_AAD_MICBIAS_PULSE_LVL_2_9V: 722 da7219_aad->micbias_pulse_lvl = 723 (aad_pdata->micbias_pulse_lvl << 724 DA7219_MICBIAS1_LEVEL_SHIFT); 725 break; 726 default: 727 break; 728 } 729 730 da7219_aad->micbias_pulse_time = aad_pdata->micbias_pulse_time; 731 732 switch (aad_pdata->btn_cfg) { 733 case DA7219_AAD_BTN_CFG_2MS: 734 case DA7219_AAD_BTN_CFG_5MS: 735 case DA7219_AAD_BTN_CFG_10MS: 736 case DA7219_AAD_BTN_CFG_50MS: 737 case DA7219_AAD_BTN_CFG_100MS: 738 case DA7219_AAD_BTN_CFG_200MS: 739 case DA7219_AAD_BTN_CFG_500MS: 740 da7219_aad->btn_cfg = (aad_pdata->btn_cfg << 741 DA7219_BUTTON_CONFIG_SHIFT); 742 } 743 744 cfg = 0; 745 mask = 0; 746 switch (aad_pdata->mic_det_thr) { 747 case DA7219_AAD_MIC_DET_THR_200_OHMS: 748 case DA7219_AAD_MIC_DET_THR_500_OHMS: 749 case DA7219_AAD_MIC_DET_THR_750_OHMS: 750 case DA7219_AAD_MIC_DET_THR_1000_OHMS: 751 cfg |= (aad_pdata->mic_det_thr << 752 DA7219_MIC_DET_THRESH_SHIFT); 753 mask |= DA7219_MIC_DET_THRESH_MASK; 754 } 755 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, mask, cfg); 756 757 cfg = 0; 758 mask = 0; 759 switch (aad_pdata->jack_ins_deb) { 760 case DA7219_AAD_JACK_INS_DEB_5MS: 761 case DA7219_AAD_JACK_INS_DEB_10MS: 762 case DA7219_AAD_JACK_INS_DEB_20MS: 763 case DA7219_AAD_JACK_INS_DEB_50MS: 764 case DA7219_AAD_JACK_INS_DEB_100MS: 765 case DA7219_AAD_JACK_INS_DEB_200MS: 766 case DA7219_AAD_JACK_INS_DEB_500MS: 767 case DA7219_AAD_JACK_INS_DEB_1S: 768 cfg |= (aad_pdata->jack_ins_deb << 769 DA7219_JACKDET_DEBOUNCE_SHIFT); 770 mask |= DA7219_JACKDET_DEBOUNCE_MASK; 771 } 772 switch (aad_pdata->jack_det_rate) { 773 case DA7219_AAD_JACK_DET_RATE_32_64MS: 774 case DA7219_AAD_JACK_DET_RATE_64_128MS: 775 case DA7219_AAD_JACK_DET_RATE_128_256MS: 776 case DA7219_AAD_JACK_DET_RATE_256_512MS: 777 cfg |= (aad_pdata->jack_det_rate << 778 DA7219_JACK_DETECT_RATE_SHIFT); 779 mask |= DA7219_JACK_DETECT_RATE_MASK; 780 } 781 switch (aad_pdata->jack_rem_deb) { 782 case DA7219_AAD_JACK_REM_DEB_1MS: 783 case DA7219_AAD_JACK_REM_DEB_5MS: 784 case DA7219_AAD_JACK_REM_DEB_10MS: 785 case DA7219_AAD_JACK_REM_DEB_20MS: 786 cfg |= (aad_pdata->jack_rem_deb << 787 DA7219_JACKDET_REM_DEB_SHIFT); 788 mask |= DA7219_JACKDET_REM_DEB_MASK; 789 } 790 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_2, mask, cfg); 791 792 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_3, 793 aad_pdata->a_d_btn_thr); 794 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_4, 795 aad_pdata->d_b_btn_thr); 796 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_5, 797 aad_pdata->b_c_btn_thr); 798 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_6, 799 aad_pdata->c_mic_btn_thr); 800 801 cfg = 0; 802 mask = 0; 803 switch (aad_pdata->btn_avg) { 804 case DA7219_AAD_BTN_AVG_1: 805 case DA7219_AAD_BTN_AVG_2: 806 case DA7219_AAD_BTN_AVG_4: 807 case DA7219_AAD_BTN_AVG_8: 808 cfg |= (aad_pdata->btn_avg << 809 DA7219_BUTTON_AVERAGE_SHIFT); 810 mask |= DA7219_BUTTON_AVERAGE_MASK; 811 } 812 switch (aad_pdata->adc_1bit_rpt) { 813 case DA7219_AAD_ADC_1BIT_RPT_1: 814 case DA7219_AAD_ADC_1BIT_RPT_2: 815 case DA7219_AAD_ADC_1BIT_RPT_4: 816 case DA7219_AAD_ADC_1BIT_RPT_8: 817 cfg |= (aad_pdata->adc_1bit_rpt << 818 DA7219_ADC_1_BIT_REPEAT_SHIFT); 819 mask |= DA7219_ADC_1_BIT_REPEAT_MASK; 820 } 821 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_7, mask, cfg); 822 } 823 } 824 825 826 /* 827 * Suspend/Resume 828 */ 829 830 void da7219_aad_suspend(struct snd_soc_component *component) 831 { 832 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 833 struct da7219_aad_priv *da7219_aad = da7219->aad; 834 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 835 u8 micbias_ctrl; 836 837 if (da7219_aad->jack) { 838 /* Disable jack detection during suspend */ 839 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, 840 DA7219_ACCDET_EN_MASK, 0); 841 842 /* 843 * If we have a 4-pole jack inserted, then micbias will be 844 * enabled. We can disable micbias here, and keep a note to 845 * re-enable it on resume. If jack removal occurred during 846 * suspend then this will be dealt with through the IRQ handler. 847 */ 848 if (da7219_aad->jack_inserted) { 849 micbias_ctrl = snd_soc_component_read32(component, DA7219_MICBIAS_CTRL); 850 if (micbias_ctrl & DA7219_MICBIAS1_EN_MASK) { 851 snd_soc_dapm_disable_pin(dapm, "Mic Bias"); 852 snd_soc_dapm_sync(dapm); 853 da7219_aad->micbias_resume_enable = true; 854 } 855 } 856 } 857 } 858 859 void da7219_aad_resume(struct snd_soc_component *component) 860 { 861 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 862 struct da7219_aad_priv *da7219_aad = da7219->aad; 863 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 864 865 if (da7219_aad->jack) { 866 /* Re-enable micbias if previously enabled for 4-pole jack */ 867 if (da7219_aad->jack_inserted && 868 da7219_aad->micbias_resume_enable) { 869 snd_soc_dapm_force_enable_pin(dapm, "Mic Bias"); 870 snd_soc_dapm_sync(dapm); 871 da7219_aad->micbias_resume_enable = false; 872 } 873 874 /* Re-enable jack detection */ 875 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, 876 DA7219_ACCDET_EN_MASK, 877 DA7219_ACCDET_EN_MASK); 878 } 879 } 880 881 882 /* 883 * Init/Exit 884 */ 885 886 int da7219_aad_init(struct snd_soc_component *component) 887 { 888 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 889 struct da7219_aad_priv *da7219_aad; 890 u8 mask[DA7219_AAD_IRQ_REG_MAX]; 891 int ret; 892 893 da7219_aad = devm_kzalloc(component->dev, sizeof(*da7219_aad), GFP_KERNEL); 894 if (!da7219_aad) 895 return -ENOMEM; 896 897 da7219->aad = da7219_aad; 898 da7219_aad->component = component; 899 900 /* Handle any DT/ACPI/platform data */ 901 if (da7219->pdata && !da7219->pdata->aad_pdata) 902 da7219->pdata->aad_pdata = da7219_aad_fw_to_pdata(component); 903 904 da7219_aad_handle_pdata(component); 905 906 /* Disable button detection */ 907 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, 908 DA7219_BUTTON_CONFIG_MASK, 0); 909 910 INIT_WORK(&da7219_aad->btn_det_work, da7219_aad_btn_det_work); 911 INIT_WORK(&da7219_aad->hptest_work, da7219_aad_hptest_work); 912 913 ret = request_threaded_irq(da7219_aad->irq, NULL, 914 da7219_aad_irq_thread, 915 IRQF_TRIGGER_LOW | IRQF_ONESHOT, 916 "da7219-aad", da7219_aad); 917 if (ret) { 918 dev_err(component->dev, "Failed to request IRQ: %d\n", ret); 919 return ret; 920 } 921 922 /* Unmask AAD IRQs */ 923 memset(mask, 0, DA7219_AAD_IRQ_REG_MAX); 924 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A, 925 &mask, DA7219_AAD_IRQ_REG_MAX); 926 927 return 0; 928 } 929 EXPORT_SYMBOL_GPL(da7219_aad_init); 930 931 void da7219_aad_exit(struct snd_soc_component *component) 932 { 933 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component); 934 struct da7219_aad_priv *da7219_aad = da7219->aad; 935 u8 mask[DA7219_AAD_IRQ_REG_MAX]; 936 937 /* Mask off AAD IRQs */ 938 memset(mask, DA7219_BYTE_MASK, DA7219_AAD_IRQ_REG_MAX); 939 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A, 940 mask, DA7219_AAD_IRQ_REG_MAX); 941 942 free_irq(da7219_aad->irq, da7219_aad); 943 944 cancel_work_sync(&da7219_aad->btn_det_work); 945 cancel_work_sync(&da7219_aad->hptest_work); 946 } 947 EXPORT_SYMBOL_GPL(da7219_aad_exit); 948 949 MODULE_DESCRIPTION("ASoC DA7219 AAD Driver"); 950 MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>"); 951 MODULE_LICENSE("GPL"); 952