1 /* 2 * ALSA SoC TWL6040 codec driver 3 * 4 * Author: Misael Lopez Cruz <x0052729@ti.com> 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License 8 * version 2 as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, but 11 * WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 18 * 02110-1301 USA 19 * 20 */ 21 22 #include <linux/module.h> 23 #include <linux/moduleparam.h> 24 #include <linux/init.h> 25 #include <linux/delay.h> 26 #include <linux/pm.h> 27 #include <linux/platform_device.h> 28 #include <linux/slab.h> 29 #include <linux/mfd/twl6040.h> 30 31 #include <sound/core.h> 32 #include <sound/pcm.h> 33 #include <sound/pcm_params.h> 34 #include <sound/soc.h> 35 #include <sound/soc-dapm.h> 36 #include <sound/initval.h> 37 #include <sound/tlv.h> 38 39 #include "twl6040.h" 40 41 #define TWL6040_RATES SNDRV_PCM_RATE_8000_96000 42 #define TWL6040_FORMATS (SNDRV_PCM_FMTBIT_S32_LE) 43 44 #define TWL6040_OUTHS_0dB 0x00 45 #define TWL6040_OUTHS_M30dB 0x0F 46 #define TWL6040_OUTHF_0dB 0x03 47 #define TWL6040_OUTHF_M52dB 0x1D 48 49 /* Shadow register used by the driver */ 50 #define TWL6040_REG_SW_SHADOW 0x2F 51 #define TWL6040_CACHEREGNUM (TWL6040_REG_SW_SHADOW + 1) 52 53 /* TWL6040_REG_SW_SHADOW (0x2F) fields */ 54 #define TWL6040_EAR_PATH_ENABLE 0x01 55 56 struct twl6040_jack_data { 57 struct snd_soc_jack *jack; 58 struct delayed_work work; 59 int report; 60 }; 61 62 /* codec private data */ 63 struct twl6040_data { 64 int plug_irq; 65 int codec_powered; 66 int pll; 67 int pll_power_mode; 68 int hs_power_mode; 69 int hs_power_mode_locked; 70 unsigned int clk_in; 71 unsigned int sysclk; 72 u16 hs_left_step; 73 u16 hs_right_step; 74 u16 hf_left_step; 75 u16 hf_right_step; 76 struct twl6040_jack_data hs_jack; 77 struct snd_soc_codec *codec; 78 struct workqueue_struct *workqueue; 79 struct mutex mutex; 80 }; 81 82 /* 83 * twl6040 register cache & default register settings 84 */ 85 static const u8 twl6040_reg[TWL6040_CACHEREGNUM] = { 86 0x00, /* not used 0x00 */ 87 0x4B, /* REG_ASICID 0x01 (ro) */ 88 0x00, /* REG_ASICREV 0x02 (ro) */ 89 0x00, /* REG_INTID 0x03 */ 90 0x00, /* REG_INTMR 0x04 */ 91 0x00, /* REG_NCPCTRL 0x05 */ 92 0x00, /* REG_LDOCTL 0x06 */ 93 0x60, /* REG_HPPLLCTL 0x07 */ 94 0x00, /* REG_LPPLLCTL 0x08 */ 95 0x4A, /* REG_LPPLLDIV 0x09 */ 96 0x00, /* REG_AMICBCTL 0x0A */ 97 0x00, /* REG_DMICBCTL 0x0B */ 98 0x00, /* REG_MICLCTL 0x0C */ 99 0x00, /* REG_MICRCTL 0x0D */ 100 0x00, /* REG_MICGAIN 0x0E */ 101 0x1B, /* REG_LINEGAIN 0x0F */ 102 0x00, /* REG_HSLCTL 0x10 */ 103 0x00, /* REG_HSRCTL 0x11 */ 104 0x00, /* REG_HSGAIN 0x12 */ 105 0x00, /* REG_EARCTL 0x13 */ 106 0x00, /* REG_HFLCTL 0x14 */ 107 0x00, /* REG_HFLGAIN 0x15 */ 108 0x00, /* REG_HFRCTL 0x16 */ 109 0x00, /* REG_HFRGAIN 0x17 */ 110 0x00, /* REG_VIBCTLL 0x18 */ 111 0x00, /* REG_VIBDATL 0x19 */ 112 0x00, /* REG_VIBCTLR 0x1A */ 113 0x00, /* REG_VIBDATR 0x1B */ 114 0x00, /* REG_HKCTL1 0x1C */ 115 0x00, /* REG_HKCTL2 0x1D */ 116 0x00, /* REG_GPOCTL 0x1E */ 117 0x00, /* REG_ALB 0x1F */ 118 0x00, /* REG_DLB 0x20 */ 119 0x00, /* not used 0x21 */ 120 0x00, /* not used 0x22 */ 121 0x00, /* not used 0x23 */ 122 0x00, /* not used 0x24 */ 123 0x00, /* not used 0x25 */ 124 0x00, /* not used 0x26 */ 125 0x00, /* not used 0x27 */ 126 0x00, /* REG_TRIM1 0x28 */ 127 0x00, /* REG_TRIM2 0x29 */ 128 0x00, /* REG_TRIM3 0x2A */ 129 0x00, /* REG_HSOTRIM 0x2B */ 130 0x00, /* REG_HFOTRIM 0x2C */ 131 0x09, /* REG_ACCCTL 0x2D */ 132 0x00, /* REG_STATUS 0x2E (ro) */ 133 134 0x00, /* REG_SW_SHADOW 0x2F - Shadow, non HW register */ 135 }; 136 137 /* List of registers to be restored after power up */ 138 static const int twl6040_restore_list[] = { 139 TWL6040_REG_MICLCTL, 140 TWL6040_REG_MICRCTL, 141 TWL6040_REG_MICGAIN, 142 TWL6040_REG_LINEGAIN, 143 TWL6040_REG_HSLCTL, 144 TWL6040_REG_HSRCTL, 145 TWL6040_REG_HSGAIN, 146 TWL6040_REG_EARCTL, 147 TWL6040_REG_HFLCTL, 148 TWL6040_REG_HFLGAIN, 149 TWL6040_REG_HFRCTL, 150 TWL6040_REG_HFRGAIN, 151 }; 152 153 /* set of rates for each pll: low-power and high-performance */ 154 static unsigned int lp_rates[] = { 155 8000, 156 11250, 157 16000, 158 22500, 159 32000, 160 44100, 161 48000, 162 88200, 163 96000, 164 }; 165 166 static unsigned int hp_rates[] = { 167 8000, 168 16000, 169 32000, 170 48000, 171 96000, 172 }; 173 174 static struct snd_pcm_hw_constraint_list sysclk_constraints[] = { 175 { .count = ARRAY_SIZE(lp_rates), .list = lp_rates, }, 176 { .count = ARRAY_SIZE(hp_rates), .list = hp_rates, }, 177 }; 178 179 /* 180 * read twl6040 register cache 181 */ 182 static inline unsigned int twl6040_read_reg_cache(struct snd_soc_codec *codec, 183 unsigned int reg) 184 { 185 u8 *cache = codec->reg_cache; 186 187 if (reg >= TWL6040_CACHEREGNUM) 188 return -EIO; 189 190 return cache[reg]; 191 } 192 193 /* 194 * write twl6040 register cache 195 */ 196 static inline void twl6040_write_reg_cache(struct snd_soc_codec *codec, 197 u8 reg, u8 value) 198 { 199 u8 *cache = codec->reg_cache; 200 201 if (reg >= TWL6040_CACHEREGNUM) 202 return; 203 cache[reg] = value; 204 } 205 206 /* 207 * read from twl6040 hardware register 208 */ 209 static int twl6040_read_reg_volatile(struct snd_soc_codec *codec, 210 unsigned int reg) 211 { 212 struct twl6040 *twl6040 = codec->control_data; 213 u8 value; 214 215 if (reg >= TWL6040_CACHEREGNUM) 216 return -EIO; 217 218 if (likely(reg < TWL6040_REG_SW_SHADOW)) { 219 value = twl6040_reg_read(twl6040, reg); 220 twl6040_write_reg_cache(codec, reg, value); 221 } else { 222 value = twl6040_read_reg_cache(codec, reg); 223 } 224 225 return value; 226 } 227 228 /* 229 * write to the twl6040 register space 230 */ 231 static int twl6040_write(struct snd_soc_codec *codec, 232 unsigned int reg, unsigned int value) 233 { 234 struct twl6040 *twl6040 = codec->control_data; 235 236 if (reg >= TWL6040_CACHEREGNUM) 237 return -EIO; 238 239 twl6040_write_reg_cache(codec, reg, value); 240 if (likely(reg < TWL6040_REG_SW_SHADOW)) 241 return twl6040_reg_write(twl6040, reg, value); 242 else 243 return 0; 244 } 245 246 static void twl6040_init_chip(struct snd_soc_codec *codec) 247 { 248 struct twl6040 *twl6040 = codec->control_data; 249 u8 val; 250 251 /* Update reg_cache: ASICREV, and TRIM values */ 252 val = twl6040_get_revid(twl6040); 253 twl6040_write_reg_cache(codec, TWL6040_REG_ASICREV, val); 254 255 twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM1); 256 twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM2); 257 twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM3); 258 twl6040_read_reg_volatile(codec, TWL6040_REG_HSOTRIM); 259 twl6040_read_reg_volatile(codec, TWL6040_REG_HFOTRIM); 260 261 /* Change chip defaults */ 262 /* No imput selected for microphone amplifiers */ 263 twl6040_write_reg_cache(codec, TWL6040_REG_MICLCTL, 0x18); 264 twl6040_write_reg_cache(codec, TWL6040_REG_MICRCTL, 0x18); 265 266 /* 267 * We need to lower the default gain values, so the ramp code 268 * can work correctly for the first playback. 269 * This reduces the pop noise heard at the first playback. 270 */ 271 twl6040_write_reg_cache(codec, TWL6040_REG_HSGAIN, 0xff); 272 twl6040_write_reg_cache(codec, TWL6040_REG_EARCTL, 0x1e); 273 twl6040_write_reg_cache(codec, TWL6040_REG_HFLGAIN, 0x1d); 274 twl6040_write_reg_cache(codec, TWL6040_REG_HFRGAIN, 0x1d); 275 twl6040_write_reg_cache(codec, TWL6040_REG_LINEGAIN, 0); 276 } 277 278 static void twl6040_restore_regs(struct snd_soc_codec *codec) 279 { 280 u8 *cache = codec->reg_cache; 281 int reg, i; 282 283 for (i = 0; i < ARRAY_SIZE(twl6040_restore_list); i++) { 284 reg = twl6040_restore_list[i]; 285 twl6040_write(codec, reg, cache[reg]); 286 } 287 } 288 289 /* set headset dac and driver power mode */ 290 static int headset_power_mode(struct snd_soc_codec *codec, int high_perf) 291 { 292 int hslctl, hsrctl; 293 int mask = TWL6040_HSDRVMODE | TWL6040_HSDACMODE; 294 295 hslctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL); 296 hsrctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSRCTL); 297 298 if (high_perf) { 299 hslctl &= ~mask; 300 hsrctl &= ~mask; 301 } else { 302 hslctl |= mask; 303 hsrctl |= mask; 304 } 305 306 twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl); 307 twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl); 308 309 return 0; 310 } 311 312 static int twl6040_hs_dac_event(struct snd_soc_dapm_widget *w, 313 struct snd_kcontrol *kcontrol, int event) 314 { 315 struct snd_soc_codec *codec = w->codec; 316 u8 hslctl, hsrctl; 317 318 /* 319 * Workaround for Headset DC offset caused pop noise: 320 * Both HS DAC need to be turned on (before the HS driver) and off at 321 * the same time. 322 */ 323 hslctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL); 324 hsrctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSRCTL); 325 if (SND_SOC_DAPM_EVENT_ON(event)) { 326 hslctl |= TWL6040_HSDACENA; 327 hsrctl |= TWL6040_HSDACENA; 328 } else { 329 hslctl &= ~TWL6040_HSDACENA; 330 hsrctl &= ~TWL6040_HSDACENA; 331 } 332 twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl); 333 twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl); 334 335 msleep(1); 336 return 0; 337 } 338 339 static int twl6040_ep_drv_event(struct snd_soc_dapm_widget *w, 340 struct snd_kcontrol *kcontrol, int event) 341 { 342 struct snd_soc_codec *codec = w->codec; 343 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); 344 int ret = 0; 345 346 if (SND_SOC_DAPM_EVENT_ON(event)) { 347 /* Earphone doesn't support low power mode */ 348 priv->hs_power_mode_locked = 1; 349 ret = headset_power_mode(codec, 1); 350 } else { 351 priv->hs_power_mode_locked = 0; 352 ret = headset_power_mode(codec, priv->hs_power_mode); 353 } 354 355 msleep(1); 356 357 return ret; 358 } 359 360 static void twl6040_hs_jack_report(struct snd_soc_codec *codec, 361 struct snd_soc_jack *jack, int report) 362 { 363 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); 364 int status; 365 366 mutex_lock(&priv->mutex); 367 368 /* Sync status */ 369 status = twl6040_read_reg_volatile(codec, TWL6040_REG_STATUS); 370 if (status & TWL6040_PLUGCOMP) 371 snd_soc_jack_report(jack, report, report); 372 else 373 snd_soc_jack_report(jack, 0, report); 374 375 mutex_unlock(&priv->mutex); 376 } 377 378 void twl6040_hs_jack_detect(struct snd_soc_codec *codec, 379 struct snd_soc_jack *jack, int report) 380 { 381 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); 382 struct twl6040_jack_data *hs_jack = &priv->hs_jack; 383 384 hs_jack->jack = jack; 385 hs_jack->report = report; 386 387 twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report); 388 } 389 EXPORT_SYMBOL_GPL(twl6040_hs_jack_detect); 390 391 static void twl6040_accessory_work(struct work_struct *work) 392 { 393 struct twl6040_data *priv = container_of(work, 394 struct twl6040_data, hs_jack.work.work); 395 struct snd_soc_codec *codec = priv->codec; 396 struct twl6040_jack_data *hs_jack = &priv->hs_jack; 397 398 twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report); 399 } 400 401 /* audio interrupt handler */ 402 static irqreturn_t twl6040_audio_handler(int irq, void *data) 403 { 404 struct snd_soc_codec *codec = data; 405 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); 406 407 queue_delayed_work(priv->workqueue, &priv->hs_jack.work, 408 msecs_to_jiffies(200)); 409 410 return IRQ_HANDLED; 411 } 412 413 static int twl6040_soc_dapm_put_vibra_enum(struct snd_kcontrol *kcontrol, 414 struct snd_ctl_elem_value *ucontrol) 415 { 416 struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); 417 struct snd_soc_dapm_widget *widget = wlist->widgets[0]; 418 struct snd_soc_codec *codec = widget->codec; 419 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; 420 unsigned int val; 421 422 /* Do not allow changes while Input/FF efect is running */ 423 val = twl6040_read_reg_volatile(codec, e->reg); 424 if (val & TWL6040_VIBENA && !(val & TWL6040_VIBSEL)) 425 return -EBUSY; 426 427 return snd_soc_dapm_put_enum_double(kcontrol, ucontrol); 428 } 429 430 /* 431 * MICATT volume control: 432 * from -6 to 0 dB in 6 dB steps 433 */ 434 static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0); 435 436 /* 437 * MICGAIN volume control: 438 * from 6 to 30 dB in 6 dB steps 439 */ 440 static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0); 441 442 /* 443 * AFMGAIN volume control: 444 * from -18 to 24 dB in 6 dB steps 445 */ 446 static DECLARE_TLV_DB_SCALE(afm_amp_tlv, -1800, 600, 0); 447 448 /* 449 * HSGAIN volume control: 450 * from -30 to 0 dB in 2 dB steps 451 */ 452 static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0); 453 454 /* 455 * HFGAIN volume control: 456 * from -52 to 6 dB in 2 dB steps 457 */ 458 static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0); 459 460 /* 461 * EPGAIN volume control: 462 * from -24 to 6 dB in 2 dB steps 463 */ 464 static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0); 465 466 /* Left analog microphone selection */ 467 static const char *twl6040_amicl_texts[] = 468 {"Headset Mic", "Main Mic", "Aux/FM Left", "Off"}; 469 470 /* Right analog microphone selection */ 471 static const char *twl6040_amicr_texts[] = 472 {"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"}; 473 474 static const struct soc_enum twl6040_enum[] = { 475 SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3, 4, twl6040_amicl_texts), 476 SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3, 4, twl6040_amicr_texts), 477 }; 478 479 static const char *twl6040_hs_texts[] = { 480 "Off", "HS DAC", "Line-In amp" 481 }; 482 483 static const struct soc_enum twl6040_hs_enum[] = { 484 SOC_ENUM_SINGLE(TWL6040_REG_HSLCTL, 5, ARRAY_SIZE(twl6040_hs_texts), 485 twl6040_hs_texts), 486 SOC_ENUM_SINGLE(TWL6040_REG_HSRCTL, 5, ARRAY_SIZE(twl6040_hs_texts), 487 twl6040_hs_texts), 488 }; 489 490 static const char *twl6040_hf_texts[] = { 491 "Off", "HF DAC", "Line-In amp" 492 }; 493 494 static const struct soc_enum twl6040_hf_enum[] = { 495 SOC_ENUM_SINGLE(TWL6040_REG_HFLCTL, 2, ARRAY_SIZE(twl6040_hf_texts), 496 twl6040_hf_texts), 497 SOC_ENUM_SINGLE(TWL6040_REG_HFRCTL, 2, ARRAY_SIZE(twl6040_hf_texts), 498 twl6040_hf_texts), 499 }; 500 501 static const char *twl6040_vibrapath_texts[] = { 502 "Input FF", "Audio PDM" 503 }; 504 505 static const struct soc_enum twl6040_vibra_enum[] = { 506 SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLL, 1, 507 ARRAY_SIZE(twl6040_vibrapath_texts), 508 twl6040_vibrapath_texts), 509 SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLR, 1, 510 ARRAY_SIZE(twl6040_vibrapath_texts), 511 twl6040_vibrapath_texts), 512 }; 513 514 static const struct snd_kcontrol_new amicl_control = 515 SOC_DAPM_ENUM("Route", twl6040_enum[0]); 516 517 static const struct snd_kcontrol_new amicr_control = 518 SOC_DAPM_ENUM("Route", twl6040_enum[1]); 519 520 /* Headset DAC playback switches */ 521 static const struct snd_kcontrol_new hsl_mux_controls = 522 SOC_DAPM_ENUM("Route", twl6040_hs_enum[0]); 523 524 static const struct snd_kcontrol_new hsr_mux_controls = 525 SOC_DAPM_ENUM("Route", twl6040_hs_enum[1]); 526 527 /* Handsfree DAC playback switches */ 528 static const struct snd_kcontrol_new hfl_mux_controls = 529 SOC_DAPM_ENUM("Route", twl6040_hf_enum[0]); 530 531 static const struct snd_kcontrol_new hfr_mux_controls = 532 SOC_DAPM_ENUM("Route", twl6040_hf_enum[1]); 533 534 static const struct snd_kcontrol_new ep_path_enable_control = 535 SOC_DAPM_SINGLE("Switch", TWL6040_REG_SW_SHADOW, 0, 1, 0); 536 537 static const struct snd_kcontrol_new auxl_switch_control = 538 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL, 6, 1, 0); 539 540 static const struct snd_kcontrol_new auxr_switch_control = 541 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFRCTL, 6, 1, 0); 542 543 /* Vibra playback switches */ 544 static const struct snd_kcontrol_new vibral_mux_controls = 545 SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[0], 546 snd_soc_dapm_get_enum_double, 547 twl6040_soc_dapm_put_vibra_enum); 548 549 static const struct snd_kcontrol_new vibrar_mux_controls = 550 SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[1], 551 snd_soc_dapm_get_enum_double, 552 twl6040_soc_dapm_put_vibra_enum); 553 554 /* Headset power mode */ 555 static const char *twl6040_power_mode_texts[] = { 556 "Low-Power", "High-Performance", 557 }; 558 559 static const struct soc_enum twl6040_power_mode_enum = 560 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(twl6040_power_mode_texts), 561 twl6040_power_mode_texts); 562 563 static int twl6040_headset_power_get_enum(struct snd_kcontrol *kcontrol, 564 struct snd_ctl_elem_value *ucontrol) 565 { 566 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 567 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); 568 569 ucontrol->value.enumerated.item[0] = priv->hs_power_mode; 570 571 return 0; 572 } 573 574 static int twl6040_headset_power_put_enum(struct snd_kcontrol *kcontrol, 575 struct snd_ctl_elem_value *ucontrol) 576 { 577 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 578 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); 579 int high_perf = ucontrol->value.enumerated.item[0]; 580 int ret = 0; 581 582 if (!priv->hs_power_mode_locked) 583 ret = headset_power_mode(codec, high_perf); 584 585 if (!ret) 586 priv->hs_power_mode = high_perf; 587 588 return ret; 589 } 590 591 static int twl6040_pll_get_enum(struct snd_kcontrol *kcontrol, 592 struct snd_ctl_elem_value *ucontrol) 593 { 594 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 595 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); 596 597 ucontrol->value.enumerated.item[0] = priv->pll_power_mode; 598 599 return 0; 600 } 601 602 static int twl6040_pll_put_enum(struct snd_kcontrol *kcontrol, 603 struct snd_ctl_elem_value *ucontrol) 604 { 605 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 606 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); 607 608 priv->pll_power_mode = ucontrol->value.enumerated.item[0]; 609 610 return 0; 611 } 612 613 int twl6040_get_dl1_gain(struct snd_soc_codec *codec) 614 { 615 struct snd_soc_dapm_context *dapm = &codec->dapm; 616 617 if (snd_soc_dapm_get_pin_status(dapm, "EP")) 618 return -1; /* -1dB */ 619 620 if (snd_soc_dapm_get_pin_status(dapm, "HSOR") || 621 snd_soc_dapm_get_pin_status(dapm, "HSOL")) { 622 623 u8 val = snd_soc_read(codec, TWL6040_REG_HSLCTL); 624 if (val & TWL6040_HSDACMODE) 625 /* HSDACL in LP mode */ 626 return -8; /* -8dB */ 627 else 628 /* HSDACL in HP mode */ 629 return -1; /* -1dB */ 630 } 631 return 0; /* 0dB */ 632 } 633 EXPORT_SYMBOL_GPL(twl6040_get_dl1_gain); 634 635 int twl6040_get_clk_id(struct snd_soc_codec *codec) 636 { 637 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); 638 639 return priv->pll_power_mode; 640 } 641 EXPORT_SYMBOL_GPL(twl6040_get_clk_id); 642 643 int twl6040_get_trim_value(struct snd_soc_codec *codec, enum twl6040_trim trim) 644 { 645 if (unlikely(trim >= TWL6040_TRIM_INVAL)) 646 return -EINVAL; 647 648 return twl6040_read_reg_cache(codec, TWL6040_REG_TRIM1 + trim); 649 } 650 EXPORT_SYMBOL_GPL(twl6040_get_trim_value); 651 652 int twl6040_get_hs_step_size(struct snd_soc_codec *codec) 653 { 654 struct twl6040 *twl6040 = codec->control_data; 655 656 if (twl6040_get_revid(twl6040) < TWL6040_REV_ES1_3) 657 /* For ES under ES_1.3 HS step is 2 mV */ 658 return 2; 659 else 660 /* For ES_1.3 HS step is 1 mV */ 661 return 1; 662 } 663 EXPORT_SYMBOL_GPL(twl6040_get_hs_step_size); 664 665 static const struct snd_kcontrol_new twl6040_snd_controls[] = { 666 /* Capture gains */ 667 SOC_DOUBLE_TLV("Capture Preamplifier Volume", 668 TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv), 669 SOC_DOUBLE_TLV("Capture Volume", 670 TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv), 671 672 /* AFM gains */ 673 SOC_DOUBLE_TLV("Aux FM Volume", 674 TWL6040_REG_LINEGAIN, 0, 3, 7, 0, afm_amp_tlv), 675 676 /* Playback gains */ 677 SOC_DOUBLE_TLV("Headset Playback Volume", 678 TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv), 679 SOC_DOUBLE_R_TLV("Handsfree Playback Volume", 680 TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv), 681 SOC_SINGLE_TLV("Earphone Playback Volume", 682 TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv), 683 684 SOC_ENUM_EXT("Headset Power Mode", twl6040_power_mode_enum, 685 twl6040_headset_power_get_enum, 686 twl6040_headset_power_put_enum), 687 688 SOC_ENUM_EXT("PLL Selection", twl6040_power_mode_enum, 689 twl6040_pll_get_enum, twl6040_pll_put_enum), 690 }; 691 692 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = { 693 /* Inputs */ 694 SND_SOC_DAPM_INPUT("MAINMIC"), 695 SND_SOC_DAPM_INPUT("HSMIC"), 696 SND_SOC_DAPM_INPUT("SUBMIC"), 697 SND_SOC_DAPM_INPUT("AFML"), 698 SND_SOC_DAPM_INPUT("AFMR"), 699 700 /* Outputs */ 701 SND_SOC_DAPM_OUTPUT("HSOL"), 702 SND_SOC_DAPM_OUTPUT("HSOR"), 703 SND_SOC_DAPM_OUTPUT("HFL"), 704 SND_SOC_DAPM_OUTPUT("HFR"), 705 SND_SOC_DAPM_OUTPUT("EP"), 706 SND_SOC_DAPM_OUTPUT("AUXL"), 707 SND_SOC_DAPM_OUTPUT("AUXR"), 708 SND_SOC_DAPM_OUTPUT("VIBRAL"), 709 SND_SOC_DAPM_OUTPUT("VIBRAR"), 710 711 /* Analog input muxes for the capture amplifiers */ 712 SND_SOC_DAPM_MUX("Analog Left Capture Route", 713 SND_SOC_NOPM, 0, 0, &amicl_control), 714 SND_SOC_DAPM_MUX("Analog Right Capture Route", 715 SND_SOC_NOPM, 0, 0, &amicr_control), 716 717 /* Analog capture PGAs */ 718 SND_SOC_DAPM_PGA("MicAmpL", 719 TWL6040_REG_MICLCTL, 0, 0, NULL, 0), 720 SND_SOC_DAPM_PGA("MicAmpR", 721 TWL6040_REG_MICRCTL, 0, 0, NULL, 0), 722 723 /* Auxiliary FM PGAs */ 724 SND_SOC_DAPM_PGA("AFMAmpL", 725 TWL6040_REG_MICLCTL, 1, 0, NULL, 0), 726 SND_SOC_DAPM_PGA("AFMAmpR", 727 TWL6040_REG_MICRCTL, 1, 0, NULL, 0), 728 729 /* ADCs */ 730 SND_SOC_DAPM_ADC("ADC Left", NULL, TWL6040_REG_MICLCTL, 2, 0), 731 SND_SOC_DAPM_ADC("ADC Right", NULL, TWL6040_REG_MICRCTL, 2, 0), 732 733 /* Microphone bias */ 734 SND_SOC_DAPM_SUPPLY("Headset Mic Bias", 735 TWL6040_REG_AMICBCTL, 0, 0, NULL, 0), 736 SND_SOC_DAPM_SUPPLY("Main Mic Bias", 737 TWL6040_REG_AMICBCTL, 4, 0, NULL, 0), 738 SND_SOC_DAPM_SUPPLY("Digital Mic1 Bias", 739 TWL6040_REG_DMICBCTL, 0, 0, NULL, 0), 740 SND_SOC_DAPM_SUPPLY("Digital Mic2 Bias", 741 TWL6040_REG_DMICBCTL, 4, 0, NULL, 0), 742 743 /* DACs */ 744 SND_SOC_DAPM_DAC("HSDAC Left", NULL, SND_SOC_NOPM, 0, 0), 745 SND_SOC_DAPM_DAC("HSDAC Right", NULL, SND_SOC_NOPM, 0, 0), 746 SND_SOC_DAPM_DAC("HFDAC Left", NULL, TWL6040_REG_HFLCTL, 0, 0), 747 SND_SOC_DAPM_DAC("HFDAC Right", NULL, TWL6040_REG_HFRCTL, 0, 0), 748 /* Virtual DAC for vibra path (DL4 channel) */ 749 SND_SOC_DAPM_DAC("VIBRA DAC", NULL, SND_SOC_NOPM, 0, 0), 750 751 SND_SOC_DAPM_MUX("Handsfree Left Playback", 752 SND_SOC_NOPM, 0, 0, &hfl_mux_controls), 753 SND_SOC_DAPM_MUX("Handsfree Right Playback", 754 SND_SOC_NOPM, 0, 0, &hfr_mux_controls), 755 /* Analog playback Muxes */ 756 SND_SOC_DAPM_MUX("Headset Left Playback", 757 SND_SOC_NOPM, 0, 0, &hsl_mux_controls), 758 SND_SOC_DAPM_MUX("Headset Right Playback", 759 SND_SOC_NOPM, 0, 0, &hsr_mux_controls), 760 761 SND_SOC_DAPM_MUX("Vibra Left Playback", SND_SOC_NOPM, 0, 0, 762 &vibral_mux_controls), 763 SND_SOC_DAPM_MUX("Vibra Right Playback", SND_SOC_NOPM, 0, 0, 764 &vibrar_mux_controls), 765 766 SND_SOC_DAPM_SWITCH("Earphone Playback", SND_SOC_NOPM, 0, 0, 767 &ep_path_enable_control), 768 SND_SOC_DAPM_SWITCH("AUXL Playback", SND_SOC_NOPM, 0, 0, 769 &auxl_switch_control), 770 SND_SOC_DAPM_SWITCH("AUXR Playback", SND_SOC_NOPM, 0, 0, 771 &auxr_switch_control), 772 773 /* Analog playback drivers */ 774 SND_SOC_DAPM_OUT_DRV("HF Left Driver", 775 TWL6040_REG_HFLCTL, 4, 0, NULL, 0), 776 SND_SOC_DAPM_OUT_DRV("HF Right Driver", 777 TWL6040_REG_HFRCTL, 4, 0, NULL, 0), 778 SND_SOC_DAPM_OUT_DRV("HS Left Driver", 779 TWL6040_REG_HSLCTL, 2, 0, NULL, 0), 780 SND_SOC_DAPM_OUT_DRV("HS Right Driver", 781 TWL6040_REG_HSRCTL, 2, 0, NULL, 0), 782 SND_SOC_DAPM_OUT_DRV_E("Earphone Driver", 783 TWL6040_REG_EARCTL, 0, 0, NULL, 0, 784 twl6040_ep_drv_event, 785 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), 786 SND_SOC_DAPM_OUT_DRV("Vibra Left Driver", 787 TWL6040_REG_VIBCTLL, 0, 0, NULL, 0), 788 SND_SOC_DAPM_OUT_DRV("Vibra Right Driver", 789 TWL6040_REG_VIBCTLR, 0, 0, NULL, 0), 790 791 SND_SOC_DAPM_SUPPLY("Vibra Left Control", TWL6040_REG_VIBCTLL, 2, 0, 792 NULL, 0), 793 SND_SOC_DAPM_SUPPLY("Vibra Right Control", TWL6040_REG_VIBCTLR, 2, 0, 794 NULL, 0), 795 SND_SOC_DAPM_SUPPLY_S("HSDAC Power", 1, SND_SOC_NOPM, 0, 0, 796 twl6040_hs_dac_event, 797 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), 798 799 /* Analog playback PGAs */ 800 SND_SOC_DAPM_PGA("HF Left PGA", 801 TWL6040_REG_HFLCTL, 1, 0, NULL, 0), 802 SND_SOC_DAPM_PGA("HF Right PGA", 803 TWL6040_REG_HFRCTL, 1, 0, NULL, 0), 804 805 }; 806 807 static const struct snd_soc_dapm_route intercon[] = { 808 /* Stream -> DAC mapping */ 809 {"HSDAC Left", NULL, "Legacy Playback"}, 810 {"HSDAC Left", NULL, "Headset Playback"}, 811 {"HSDAC Right", NULL, "Legacy Playback"}, 812 {"HSDAC Right", NULL, "Headset Playback"}, 813 814 {"HFDAC Left", NULL, "Legacy Playback"}, 815 {"HFDAC Left", NULL, "Handsfree Playback"}, 816 {"HFDAC Right", NULL, "Legacy Playback"}, 817 {"HFDAC Right", NULL, "Handsfree Playback"}, 818 819 {"VIBRA DAC", NULL, "Legacy Playback"}, 820 {"VIBRA DAC", NULL, "Vibra Playback"}, 821 822 /* ADC -> Stream mapping */ 823 {"Legacy Capture" , NULL, "ADC Left"}, 824 {"Capture", NULL, "ADC Left"}, 825 {"Legacy Capture", NULL, "ADC Right"}, 826 {"Capture" , NULL, "ADC Right"}, 827 828 /* Capture path */ 829 {"Analog Left Capture Route", "Headset Mic", "HSMIC"}, 830 {"Analog Left Capture Route", "Main Mic", "MAINMIC"}, 831 {"Analog Left Capture Route", "Aux/FM Left", "AFML"}, 832 833 {"Analog Right Capture Route", "Headset Mic", "HSMIC"}, 834 {"Analog Right Capture Route", "Sub Mic", "SUBMIC"}, 835 {"Analog Right Capture Route", "Aux/FM Right", "AFMR"}, 836 837 {"MicAmpL", NULL, "Analog Left Capture Route"}, 838 {"MicAmpR", NULL, "Analog Right Capture Route"}, 839 840 {"ADC Left", NULL, "MicAmpL"}, 841 {"ADC Right", NULL, "MicAmpR"}, 842 843 /* AFM path */ 844 {"AFMAmpL", NULL, "AFML"}, 845 {"AFMAmpR", NULL, "AFMR"}, 846 847 {"HSDAC Left", NULL, "HSDAC Power"}, 848 {"HSDAC Right", NULL, "HSDAC Power"}, 849 850 {"Headset Left Playback", "HS DAC", "HSDAC Left"}, 851 {"Headset Left Playback", "Line-In amp", "AFMAmpL"}, 852 853 {"Headset Right Playback", "HS DAC", "HSDAC Right"}, 854 {"Headset Right Playback", "Line-In amp", "AFMAmpR"}, 855 856 {"HS Left Driver", NULL, "Headset Left Playback"}, 857 {"HS Right Driver", NULL, "Headset Right Playback"}, 858 859 {"HSOL", NULL, "HS Left Driver"}, 860 {"HSOR", NULL, "HS Right Driver"}, 861 862 /* Earphone playback path */ 863 {"Earphone Playback", "Switch", "HSDAC Left"}, 864 {"Earphone Driver", NULL, "Earphone Playback"}, 865 {"EP", NULL, "Earphone Driver"}, 866 867 {"Handsfree Left Playback", "HF DAC", "HFDAC Left"}, 868 {"Handsfree Left Playback", "Line-In amp", "AFMAmpL"}, 869 870 {"Handsfree Right Playback", "HF DAC", "HFDAC Right"}, 871 {"Handsfree Right Playback", "Line-In amp", "AFMAmpR"}, 872 873 {"HF Left PGA", NULL, "Handsfree Left Playback"}, 874 {"HF Right PGA", NULL, "Handsfree Right Playback"}, 875 876 {"HF Left Driver", NULL, "HF Left PGA"}, 877 {"HF Right Driver", NULL, "HF Right PGA"}, 878 879 {"HFL", NULL, "HF Left Driver"}, 880 {"HFR", NULL, "HF Right Driver"}, 881 882 {"AUXL Playback", "Switch", "HF Left PGA"}, 883 {"AUXR Playback", "Switch", "HF Right PGA"}, 884 885 {"AUXL", NULL, "AUXL Playback"}, 886 {"AUXR", NULL, "AUXR Playback"}, 887 888 /* Vibrator paths */ 889 {"Vibra Left Playback", "Audio PDM", "VIBRA DAC"}, 890 {"Vibra Right Playback", "Audio PDM", "VIBRA DAC"}, 891 892 {"Vibra Left Driver", NULL, "Vibra Left Playback"}, 893 {"Vibra Right Driver", NULL, "Vibra Right Playback"}, 894 {"Vibra Left Driver", NULL, "Vibra Left Control"}, 895 {"Vibra Right Driver", NULL, "Vibra Right Control"}, 896 897 {"VIBRAL", NULL, "Vibra Left Driver"}, 898 {"VIBRAR", NULL, "Vibra Right Driver"}, 899 }; 900 901 static int twl6040_set_bias_level(struct snd_soc_codec *codec, 902 enum snd_soc_bias_level level) 903 { 904 struct twl6040 *twl6040 = codec->control_data; 905 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); 906 int ret; 907 908 switch (level) { 909 case SND_SOC_BIAS_ON: 910 break; 911 case SND_SOC_BIAS_PREPARE: 912 break; 913 case SND_SOC_BIAS_STANDBY: 914 if (priv->codec_powered) 915 break; 916 917 ret = twl6040_power(twl6040, 1); 918 if (ret) 919 return ret; 920 921 priv->codec_powered = 1; 922 923 twl6040_restore_regs(codec); 924 925 /* Set external boost GPO */ 926 twl6040_write(codec, TWL6040_REG_GPOCTL, 0x02); 927 break; 928 case SND_SOC_BIAS_OFF: 929 if (!priv->codec_powered) 930 break; 931 932 twl6040_power(twl6040, 0); 933 priv->codec_powered = 0; 934 break; 935 } 936 937 codec->dapm.bias_level = level; 938 939 return 0; 940 } 941 942 static int twl6040_startup(struct snd_pcm_substream *substream, 943 struct snd_soc_dai *dai) 944 { 945 struct snd_soc_codec *codec = dai->codec; 946 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); 947 948 snd_pcm_hw_constraint_list(substream->runtime, 0, 949 SNDRV_PCM_HW_PARAM_RATE, 950 &sysclk_constraints[priv->pll_power_mode]); 951 952 return 0; 953 } 954 955 static int twl6040_hw_params(struct snd_pcm_substream *substream, 956 struct snd_pcm_hw_params *params, 957 struct snd_soc_dai *dai) 958 { 959 struct snd_soc_codec *codec = dai->codec; 960 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); 961 int rate; 962 963 rate = params_rate(params); 964 switch (rate) { 965 case 11250: 966 case 22500: 967 case 44100: 968 case 88200: 969 /* These rates are not supported when HPPLL is in use */ 970 if (unlikely(priv->pll == TWL6040_SYSCLK_SEL_HPPLL)) { 971 dev_err(codec->dev, "HPPLL does not support rate %d\n", 972 rate); 973 return -EINVAL; 974 } 975 priv->sysclk = 17640000; 976 break; 977 case 8000: 978 case 16000: 979 case 32000: 980 case 48000: 981 case 96000: 982 priv->sysclk = 19200000; 983 break; 984 default: 985 dev_err(codec->dev, "unsupported rate %d\n", rate); 986 return -EINVAL; 987 } 988 989 return 0; 990 } 991 992 static int twl6040_prepare(struct snd_pcm_substream *substream, 993 struct snd_soc_dai *dai) 994 { 995 struct snd_soc_codec *codec = dai->codec; 996 struct twl6040 *twl6040 = codec->control_data; 997 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); 998 int ret; 999 1000 if (!priv->sysclk) { 1001 dev_err(codec->dev, 1002 "no mclk configured, call set_sysclk() on init\n"); 1003 return -EINVAL; 1004 } 1005 1006 ret = twl6040_set_pll(twl6040, priv->pll, priv->clk_in, priv->sysclk); 1007 if (ret) { 1008 dev_err(codec->dev, "Can not set PLL (%d)\n", ret); 1009 return -EPERM; 1010 } 1011 1012 return 0; 1013 } 1014 1015 static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai, 1016 int clk_id, unsigned int freq, int dir) 1017 { 1018 struct snd_soc_codec *codec = codec_dai->codec; 1019 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); 1020 1021 switch (clk_id) { 1022 case TWL6040_SYSCLK_SEL_LPPLL: 1023 case TWL6040_SYSCLK_SEL_HPPLL: 1024 priv->pll = clk_id; 1025 priv->clk_in = freq; 1026 break; 1027 default: 1028 dev_err(codec->dev, "unknown clk_id %d\n", clk_id); 1029 return -EINVAL; 1030 } 1031 1032 return 0; 1033 } 1034 1035 static const struct snd_soc_dai_ops twl6040_dai_ops = { 1036 .startup = twl6040_startup, 1037 .hw_params = twl6040_hw_params, 1038 .prepare = twl6040_prepare, 1039 .set_sysclk = twl6040_set_dai_sysclk, 1040 }; 1041 1042 static struct snd_soc_dai_driver twl6040_dai[] = { 1043 { 1044 .name = "twl6040-legacy", 1045 .playback = { 1046 .stream_name = "Legacy Playback", 1047 .channels_min = 1, 1048 .channels_max = 5, 1049 .rates = TWL6040_RATES, 1050 .formats = TWL6040_FORMATS, 1051 }, 1052 .capture = { 1053 .stream_name = "Legacy Capture", 1054 .channels_min = 1, 1055 .channels_max = 2, 1056 .rates = TWL6040_RATES, 1057 .formats = TWL6040_FORMATS, 1058 }, 1059 .ops = &twl6040_dai_ops, 1060 }, 1061 { 1062 .name = "twl6040-ul", 1063 .capture = { 1064 .stream_name = "Capture", 1065 .channels_min = 1, 1066 .channels_max = 2, 1067 .rates = TWL6040_RATES, 1068 .formats = TWL6040_FORMATS, 1069 }, 1070 .ops = &twl6040_dai_ops, 1071 }, 1072 { 1073 .name = "twl6040-dl1", 1074 .playback = { 1075 .stream_name = "Headset Playback", 1076 .channels_min = 1, 1077 .channels_max = 2, 1078 .rates = TWL6040_RATES, 1079 .formats = TWL6040_FORMATS, 1080 }, 1081 .ops = &twl6040_dai_ops, 1082 }, 1083 { 1084 .name = "twl6040-dl2", 1085 .playback = { 1086 .stream_name = "Handsfree Playback", 1087 .channels_min = 1, 1088 .channels_max = 2, 1089 .rates = TWL6040_RATES, 1090 .formats = TWL6040_FORMATS, 1091 }, 1092 .ops = &twl6040_dai_ops, 1093 }, 1094 { 1095 .name = "twl6040-vib", 1096 .playback = { 1097 .stream_name = "Vibra Playback", 1098 .channels_min = 1, 1099 .channels_max = 1, 1100 .rates = SNDRV_PCM_RATE_CONTINUOUS, 1101 .formats = TWL6040_FORMATS, 1102 }, 1103 .ops = &twl6040_dai_ops, 1104 }, 1105 }; 1106 1107 #ifdef CONFIG_PM 1108 static int twl6040_suspend(struct snd_soc_codec *codec) 1109 { 1110 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF); 1111 1112 return 0; 1113 } 1114 1115 static int twl6040_resume(struct snd_soc_codec *codec) 1116 { 1117 twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 1118 twl6040_set_bias_level(codec, codec->dapm.suspend_bias_level); 1119 1120 return 0; 1121 } 1122 #else 1123 #define twl6040_suspend NULL 1124 #define twl6040_resume NULL 1125 #endif 1126 1127 static int twl6040_probe(struct snd_soc_codec *codec) 1128 { 1129 struct twl6040_data *priv; 1130 struct twl6040_codec_data *pdata = dev_get_platdata(codec->dev); 1131 struct platform_device *pdev = container_of(codec->dev, 1132 struct platform_device, dev); 1133 int ret = 0; 1134 1135 priv = kzalloc(sizeof(struct twl6040_data), GFP_KERNEL); 1136 if (priv == NULL) 1137 return -ENOMEM; 1138 snd_soc_codec_set_drvdata(codec, priv); 1139 1140 priv->codec = codec; 1141 codec->control_data = dev_get_drvdata(codec->dev->parent); 1142 1143 if (pdata && pdata->hs_left_step && pdata->hs_right_step) { 1144 priv->hs_left_step = pdata->hs_left_step; 1145 priv->hs_right_step = pdata->hs_right_step; 1146 } else { 1147 priv->hs_left_step = 1; 1148 priv->hs_right_step = 1; 1149 } 1150 1151 if (pdata && pdata->hf_left_step && pdata->hf_right_step) { 1152 priv->hf_left_step = pdata->hf_left_step; 1153 priv->hf_right_step = pdata->hf_right_step; 1154 } else { 1155 priv->hf_left_step = 1; 1156 priv->hf_right_step = 1; 1157 } 1158 1159 priv->plug_irq = platform_get_irq(pdev, 0); 1160 if (priv->plug_irq < 0) { 1161 dev_err(codec->dev, "invalid irq\n"); 1162 ret = -EINVAL; 1163 goto work_err; 1164 } 1165 1166 priv->workqueue = alloc_workqueue("twl6040-codec", 0, 0); 1167 if (!priv->workqueue) { 1168 ret = -ENOMEM; 1169 goto work_err; 1170 } 1171 1172 INIT_DELAYED_WORK(&priv->hs_jack.work, twl6040_accessory_work); 1173 1174 mutex_init(&priv->mutex); 1175 1176 ret = request_threaded_irq(priv->plug_irq, NULL, twl6040_audio_handler, 1177 0, "twl6040_irq_plug", codec); 1178 if (ret) { 1179 dev_err(codec->dev, "PLUG IRQ request failed: %d\n", ret); 1180 goto plugirq_err; 1181 } 1182 1183 twl6040_init_chip(codec); 1184 1185 /* power on device */ 1186 ret = twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 1187 if (!ret) 1188 return 0; 1189 1190 /* Error path */ 1191 free_irq(priv->plug_irq, codec); 1192 plugirq_err: 1193 destroy_workqueue(priv->workqueue); 1194 work_err: 1195 kfree(priv); 1196 return ret; 1197 } 1198 1199 static int twl6040_remove(struct snd_soc_codec *codec) 1200 { 1201 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec); 1202 1203 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF); 1204 free_irq(priv->plug_irq, codec); 1205 destroy_workqueue(priv->workqueue); 1206 kfree(priv); 1207 1208 return 0; 1209 } 1210 1211 static struct snd_soc_codec_driver soc_codec_dev_twl6040 = { 1212 .probe = twl6040_probe, 1213 .remove = twl6040_remove, 1214 .suspend = twl6040_suspend, 1215 .resume = twl6040_resume, 1216 .read = twl6040_read_reg_cache, 1217 .write = twl6040_write, 1218 .set_bias_level = twl6040_set_bias_level, 1219 .reg_cache_size = ARRAY_SIZE(twl6040_reg), 1220 .reg_word_size = sizeof(u8), 1221 .reg_cache_default = twl6040_reg, 1222 .ignore_pmdown_time = true, 1223 1224 .controls = twl6040_snd_controls, 1225 .num_controls = ARRAY_SIZE(twl6040_snd_controls), 1226 .dapm_widgets = twl6040_dapm_widgets, 1227 .num_dapm_widgets = ARRAY_SIZE(twl6040_dapm_widgets), 1228 .dapm_routes = intercon, 1229 .num_dapm_routes = ARRAY_SIZE(intercon), 1230 }; 1231 1232 static int twl6040_codec_probe(struct platform_device *pdev) 1233 { 1234 return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl6040, 1235 twl6040_dai, ARRAY_SIZE(twl6040_dai)); 1236 } 1237 1238 static int twl6040_codec_remove(struct platform_device *pdev) 1239 { 1240 snd_soc_unregister_codec(&pdev->dev); 1241 return 0; 1242 } 1243 1244 static struct platform_driver twl6040_codec_driver = { 1245 .driver = { 1246 .name = "twl6040-codec", 1247 .owner = THIS_MODULE, 1248 }, 1249 .probe = twl6040_codec_probe, 1250 .remove = twl6040_codec_remove, 1251 }; 1252 1253 module_platform_driver(twl6040_codec_driver); 1254 1255 MODULE_DESCRIPTION("ASoC TWL6040 codec driver"); 1256 MODULE_AUTHOR("Misael Lopez Cruz"); 1257 MODULE_LICENSE("GPL"); 1258