1 // SPDX-License-Identifier: GPL-2.0-only 2 // 3 // aw88395.c -- ALSA SoC AW88395 codec support 4 // 5 // Copyright (c) 2022-2023 AWINIC Technology CO., LTD 6 // 7 // Author: Bruce zhao <zhaolei@awinic.com> 8 // Author: Weidong Wang <wangweidong.a@awinic.com> 9 // 10 11 #include <linux/gpio/consumer.h> 12 #include <linux/i2c.h> 13 #include <linux/firmware.h> 14 #include <linux/regmap.h> 15 #include <sound/soc.h> 16 #include "aw88395.h" 17 #include "aw88395_device.h" 18 #include "aw88395_lib.h" 19 #include "aw88395_reg.h" 20 21 static const struct regmap_config aw88395_remap_config = { 22 .val_bits = 16, 23 .reg_bits = 8, 24 .max_register = AW88395_REG_MAX - 1, 25 .reg_format_endian = REGMAP_ENDIAN_LITTLE, 26 .val_format_endian = REGMAP_ENDIAN_BIG, 27 }; 28 29 static void aw88395_start_pa(struct aw88395 *aw88395) 30 { 31 int ret, i; 32 33 for (i = 0; i < AW88395_START_RETRIES; i++) { 34 ret = aw88395_dev_start(aw88395->aw_pa); 35 if (ret) { 36 dev_err(aw88395->aw_pa->dev, "aw88395 device start failed. retry = %d", i); 37 ret = aw88395_dev_fw_update(aw88395->aw_pa, AW88395_DSP_FW_UPDATE_ON, true); 38 if (ret < 0) { 39 dev_err(aw88395->aw_pa->dev, "fw update failed"); 40 continue; 41 } 42 } else { 43 dev_info(aw88395->aw_pa->dev, "start success\n"); 44 break; 45 } 46 } 47 } 48 49 static void aw88395_startup_work(struct work_struct *work) 50 { 51 struct aw88395 *aw88395 = 52 container_of(work, struct aw88395, start_work.work); 53 54 mutex_lock(&aw88395->lock); 55 aw88395_start_pa(aw88395); 56 mutex_unlock(&aw88395->lock); 57 } 58 59 static void aw88395_start(struct aw88395 *aw88395, bool sync_start) 60 { 61 int ret; 62 63 if (aw88395->aw_pa->fw_status != AW88395_DEV_FW_OK) 64 return; 65 66 if (aw88395->aw_pa->status == AW88395_DEV_PW_ON) 67 return; 68 69 ret = aw88395_dev_fw_update(aw88395->aw_pa, AW88395_DSP_FW_UPDATE_OFF, true); 70 if (ret < 0) { 71 dev_err(aw88395->aw_pa->dev, "fw update failed."); 72 return; 73 } 74 75 if (sync_start == AW88395_SYNC_START) 76 aw88395_start_pa(aw88395); 77 else 78 queue_delayed_work(system_wq, 79 &aw88395->start_work, 80 AW88395_START_WORK_DELAY_MS); 81 } 82 83 static struct snd_soc_dai_driver aw88395_dai[] = { 84 { 85 .name = "aw88395-aif", 86 .id = 1, 87 .playback = { 88 .stream_name = "Speaker_Playback", 89 .channels_min = 1, 90 .channels_max = 2, 91 .rates = AW88395_RATES, 92 .formats = AW88395_FORMATS, 93 }, 94 .capture = { 95 .stream_name = "Speaker_Capture", 96 .channels_min = 1, 97 .channels_max = 2, 98 .rates = AW88395_RATES, 99 .formats = AW88395_FORMATS, 100 }, 101 }, 102 }; 103 104 static int aw88395_get_fade_in_time(struct snd_kcontrol *kcontrol, 105 struct snd_ctl_elem_value *ucontrol) 106 { 107 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 108 struct aw88395 *aw88395 = snd_soc_component_get_drvdata(component); 109 struct aw_device *aw_dev = aw88395->aw_pa; 110 111 ucontrol->value.integer.value[0] = aw_dev->fade_in_time; 112 113 return 0; 114 } 115 116 static int aw88395_set_fade_in_time(struct snd_kcontrol *kcontrol, 117 struct snd_ctl_elem_value *ucontrol) 118 { 119 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 120 struct aw88395 *aw88395 = snd_soc_component_get_drvdata(component); 121 struct soc_mixer_control *mc = 122 (struct soc_mixer_control *)kcontrol->private_value; 123 struct aw_device *aw_dev = aw88395->aw_pa; 124 int time; 125 126 time = ucontrol->value.integer.value[0]; 127 128 if (time < mc->min || time > mc->max) 129 return -EINVAL; 130 131 if (time != aw_dev->fade_in_time) { 132 aw_dev->fade_in_time = time; 133 return 1; 134 } 135 136 return 0; 137 } 138 139 static int aw88395_get_fade_out_time(struct snd_kcontrol *kcontrol, 140 struct snd_ctl_elem_value *ucontrol) 141 { 142 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 143 struct aw88395 *aw88395 = snd_soc_component_get_drvdata(component); 144 struct aw_device *aw_dev = aw88395->aw_pa; 145 146 ucontrol->value.integer.value[0] = aw_dev->fade_out_time; 147 148 return 0; 149 } 150 151 static int aw88395_set_fade_out_time(struct snd_kcontrol *kcontrol, 152 struct snd_ctl_elem_value *ucontrol) 153 { 154 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 155 struct aw88395 *aw88395 = snd_soc_component_get_drvdata(component); 156 struct soc_mixer_control *mc = 157 (struct soc_mixer_control *)kcontrol->private_value; 158 struct aw_device *aw_dev = aw88395->aw_pa; 159 int time; 160 161 time = ucontrol->value.integer.value[0]; 162 if (time < mc->min || time > mc->max) 163 return -EINVAL; 164 165 if (time != aw_dev->fade_out_time) { 166 aw_dev->fade_out_time = time; 167 return 1; 168 } 169 170 return 0; 171 } 172 173 static int aw88395_profile_info(struct snd_kcontrol *kcontrol, 174 struct snd_ctl_elem_info *uinfo) 175 { 176 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 177 struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec); 178 char *prof_name; 179 int count, ret; 180 181 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 182 uinfo->count = 1; 183 184 count = aw88395_dev_get_profile_count(aw88395->aw_pa); 185 if (count <= 0) { 186 uinfo->value.enumerated.items = 0; 187 return 0; 188 } 189 190 uinfo->value.enumerated.items = count; 191 192 if (uinfo->value.enumerated.item >= count) 193 uinfo->value.enumerated.item = count - 1; 194 195 count = uinfo->value.enumerated.item; 196 197 ret = aw88395_dev_get_prof_name(aw88395->aw_pa, count, &prof_name); 198 if (ret) { 199 strscpy(uinfo->value.enumerated.name, "null"); 200 return 0; 201 } 202 203 strscpy(uinfo->value.enumerated.name, prof_name); 204 205 return 0; 206 } 207 208 static int aw88395_profile_get(struct snd_kcontrol *kcontrol, 209 struct snd_ctl_elem_value *ucontrol) 210 { 211 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 212 struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec); 213 214 ucontrol->value.integer.value[0] = aw88395_dev_get_profile_index(aw88395->aw_pa); 215 216 return 0; 217 } 218 219 static int aw88395_profile_set(struct snd_kcontrol *kcontrol, 220 struct snd_ctl_elem_value *ucontrol) 221 { 222 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 223 struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec); 224 int ret; 225 226 /* pa stop or stopping just set profile */ 227 mutex_lock(&aw88395->lock); 228 ret = aw88395_dev_set_profile_index(aw88395->aw_pa, ucontrol->value.integer.value[0]); 229 if (ret < 0) { 230 dev_dbg(codec->dev, "profile index does not change"); 231 mutex_unlock(&aw88395->lock); 232 return 0; 233 } 234 235 if (aw88395->aw_pa->status) { 236 aw88395_dev_stop(aw88395->aw_pa); 237 aw88395_start(aw88395, AW88395_SYNC_START); 238 } 239 240 mutex_unlock(&aw88395->lock); 241 242 return 1; 243 } 244 245 static int aw88395_volume_get(struct snd_kcontrol *kcontrol, 246 struct snd_ctl_elem_value *ucontrol) 247 { 248 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 249 struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec); 250 struct aw_volume_desc *vol_desc = &aw88395->aw_pa->volume_desc; 251 252 ucontrol->value.integer.value[0] = vol_desc->ctl_volume; 253 254 return 0; 255 } 256 257 static int aw88395_volume_set(struct snd_kcontrol *kcontrol, 258 struct snd_ctl_elem_value *ucontrol) 259 { 260 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 261 struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec); 262 struct aw_volume_desc *vol_desc = &aw88395->aw_pa->volume_desc; 263 struct soc_mixer_control *mc = 264 (struct soc_mixer_control *)kcontrol->private_value; 265 int value; 266 267 value = ucontrol->value.integer.value[0]; 268 if (value < mc->min || value > mc->max) 269 return -EINVAL; 270 271 if (vol_desc->ctl_volume != value) { 272 vol_desc->ctl_volume = value; 273 aw88395_dev_set_volume(aw88395->aw_pa, vol_desc->ctl_volume); 274 275 return 1; 276 } 277 278 return 0; 279 } 280 281 static int aw88395_get_fade_step(struct snd_kcontrol *kcontrol, 282 struct snd_ctl_elem_value *ucontrol) 283 { 284 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 285 struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec); 286 287 ucontrol->value.integer.value[0] = aw88395->aw_pa->fade_step; 288 289 return 0; 290 } 291 292 static int aw88395_set_fade_step(struct snd_kcontrol *kcontrol, 293 struct snd_ctl_elem_value *ucontrol) 294 { 295 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 296 struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec); 297 struct soc_mixer_control *mc = 298 (struct soc_mixer_control *)kcontrol->private_value; 299 int value; 300 301 value = ucontrol->value.integer.value[0]; 302 if (value < mc->min || value > mc->max) 303 return -EINVAL; 304 305 if (aw88395->aw_pa->fade_step != value) { 306 aw88395->aw_pa->fade_step = value; 307 return 1; 308 } 309 310 return 0; 311 } 312 313 static int aw88395_re_get(struct snd_kcontrol *kcontrol, 314 struct snd_ctl_elem_value *ucontrol) 315 { 316 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 317 struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec); 318 struct aw_device *aw_dev = aw88395->aw_pa; 319 320 ucontrol->value.integer.value[0] = aw_dev->cali_desc.cali_re; 321 322 return 0; 323 } 324 325 static int aw88395_re_set(struct snd_kcontrol *kcontrol, 326 struct snd_ctl_elem_value *ucontrol) 327 { 328 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); 329 struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec); 330 struct soc_mixer_control *mc = 331 (struct soc_mixer_control *)kcontrol->private_value; 332 struct aw_device *aw_dev = aw88395->aw_pa; 333 int value; 334 335 value = ucontrol->value.integer.value[0]; 336 if (value < mc->min || value > mc->max) 337 return -EINVAL; 338 339 if (aw_dev->cali_desc.cali_re != value) { 340 aw_dev->cali_desc.cali_re = value; 341 return 1; 342 } 343 344 return 0; 345 } 346 347 static const struct snd_kcontrol_new aw88395_controls[] = { 348 SOC_SINGLE_EXT("PCM Playback Volume", AW88395_SYSCTRL2_REG, 349 6, AW88395_MUTE_VOL, 0, aw88395_volume_get, 350 aw88395_volume_set), 351 SOC_SINGLE_EXT("Fade Step", 0, 0, AW88395_MUTE_VOL, 0, 352 aw88395_get_fade_step, aw88395_set_fade_step), 353 SOC_SINGLE_EXT("Volume Ramp Up Step", 0, 0, FADE_TIME_MAX, FADE_TIME_MIN, 354 aw88395_get_fade_in_time, aw88395_set_fade_in_time), 355 SOC_SINGLE_EXT("Volume Ramp Down Step", 0, 0, FADE_TIME_MAX, FADE_TIME_MIN, 356 aw88395_get_fade_out_time, aw88395_set_fade_out_time), 357 SOC_SINGLE_EXT("Calib", 0, 0, AW88395_CALI_RE_MAX, 0, 358 aw88395_re_get, aw88395_re_set), 359 AW88395_PROFILE_EXT("Profile Set", aw88395_profile_info, 360 aw88395_profile_get, aw88395_profile_set), 361 }; 362 363 static int aw88395_playback_event(struct snd_soc_dapm_widget *w, 364 struct snd_kcontrol *k, int event) 365 { 366 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 367 struct aw88395 *aw88395 = snd_soc_component_get_drvdata(component); 368 369 mutex_lock(&aw88395->lock); 370 switch (event) { 371 case SND_SOC_DAPM_PRE_PMU: 372 aw88395_start(aw88395, AW88395_ASYNC_START); 373 break; 374 case SND_SOC_DAPM_POST_PMD: 375 aw88395_dev_stop(aw88395->aw_pa); 376 break; 377 default: 378 break; 379 } 380 mutex_unlock(&aw88395->lock); 381 382 return 0; 383 } 384 385 static const struct snd_soc_dapm_widget aw88395_dapm_widgets[] = { 386 /* playback */ 387 SND_SOC_DAPM_AIF_IN_E("AIF_RX", "Speaker_Playback", 0, 0, 0, 0, 388 aw88395_playback_event, 389 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), 390 SND_SOC_DAPM_OUTPUT("DAC Output"), 391 392 /* capture */ 393 SND_SOC_DAPM_AIF_OUT("AIF_TX", "Speaker_Capture", 0, SND_SOC_NOPM, 0, 0), 394 SND_SOC_DAPM_INPUT("ADC Input"), 395 }; 396 397 static const struct snd_soc_dapm_route aw88395_audio_map[] = { 398 {"DAC Output", NULL, "AIF_RX"}, 399 {"AIF_TX", NULL, "ADC Input"}, 400 }; 401 402 static int aw88395_codec_probe(struct snd_soc_component *component) 403 { 404 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 405 struct aw88395 *aw88395 = snd_soc_component_get_drvdata(component); 406 int ret; 407 408 INIT_DELAYED_WORK(&aw88395->start_work, aw88395_startup_work); 409 410 /* add widgets */ 411 ret = snd_soc_dapm_new_controls(dapm, aw88395_dapm_widgets, 412 ARRAY_SIZE(aw88395_dapm_widgets)); 413 if (ret < 0) 414 return ret; 415 416 /* add route */ 417 ret = snd_soc_dapm_add_routes(dapm, aw88395_audio_map, 418 ARRAY_SIZE(aw88395_audio_map)); 419 if (ret < 0) 420 return ret; 421 422 ret = snd_soc_add_component_controls(component, aw88395_controls, 423 ARRAY_SIZE(aw88395_controls)); 424 425 return ret; 426 } 427 428 static void aw88395_codec_remove(struct snd_soc_component *aw_codec) 429 { 430 struct aw88395 *aw88395 = snd_soc_component_get_drvdata(aw_codec); 431 432 cancel_delayed_work_sync(&aw88395->start_work); 433 } 434 435 static const struct snd_soc_component_driver soc_codec_dev_aw88395 = { 436 .probe = aw88395_codec_probe, 437 .remove = aw88395_codec_remove, 438 }; 439 440 static struct aw88395 *aw88395_malloc_init(struct i2c_client *i2c) 441 { 442 struct aw88395 *aw88395 = devm_kzalloc(&i2c->dev, 443 sizeof(struct aw88395), GFP_KERNEL); 444 if (!aw88395) 445 return NULL; 446 447 mutex_init(&aw88395->lock); 448 449 return aw88395; 450 } 451 452 static void aw88395_hw_reset(struct aw88395 *aw88395) 453 { 454 if (aw88395->reset_gpio) { 455 gpiod_set_value_cansleep(aw88395->reset_gpio, 0); 456 usleep_range(AW88395_1000_US, AW88395_1000_US + 10); 457 gpiod_set_value_cansleep(aw88395->reset_gpio, 1); 458 usleep_range(AW88395_1000_US, AW88395_1000_US + 10); 459 } else { 460 dev_err(aw88395->aw_pa->dev, "%s failed", __func__); 461 } 462 } 463 464 static int aw88395_request_firmware_file(struct aw88395 *aw88395) 465 { 466 const struct firmware *cont = NULL; 467 int ret; 468 469 aw88395->aw_pa->fw_status = AW88395_DEV_FW_FAILED; 470 471 ret = request_firmware(&cont, AW88395_ACF_FILE, aw88395->aw_pa->dev); 472 if ((ret < 0) || (!cont)) { 473 dev_err(aw88395->aw_pa->dev, "load [%s] failed!", AW88395_ACF_FILE); 474 return ret; 475 } 476 477 dev_info(aw88395->aw_pa->dev, "loaded %s - size: %zu\n", 478 AW88395_ACF_FILE, cont ? cont->size : 0); 479 480 aw88395->aw_cfg = devm_kzalloc(aw88395->aw_pa->dev, cont->size + sizeof(int), GFP_KERNEL); 481 if (!aw88395->aw_cfg) { 482 release_firmware(cont); 483 return -ENOMEM; 484 } 485 aw88395->aw_cfg->len = (int)cont->size; 486 memcpy(aw88395->aw_cfg->data, cont->data, cont->size); 487 release_firmware(cont); 488 489 ret = aw88395_dev_load_acf_check(aw88395->aw_pa, aw88395->aw_cfg); 490 if (ret < 0) { 491 dev_err(aw88395->aw_pa->dev, "Load [%s] failed ....!", AW88395_ACF_FILE); 492 return ret; 493 } 494 495 dev_dbg(aw88395->aw_pa->dev, "%s : bin load success\n", __func__); 496 497 mutex_lock(&aw88395->lock); 498 /* aw device init */ 499 ret = aw88395_dev_init(aw88395->aw_pa, aw88395->aw_cfg); 500 if (ret < 0) 501 dev_err(aw88395->aw_pa->dev, "dev init failed"); 502 mutex_unlock(&aw88395->lock); 503 504 return ret; 505 } 506 507 static int aw88395_i2c_probe(struct i2c_client *i2c) 508 { 509 struct aw88395 *aw88395; 510 int ret; 511 512 if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_I2C)) { 513 dev_err(&i2c->dev, "check_functionality failed"); 514 return -EIO; 515 } 516 517 aw88395 = aw88395_malloc_init(i2c); 518 if (!aw88395) { 519 dev_err(&i2c->dev, "malloc aw88395 failed"); 520 return -ENOMEM; 521 } 522 i2c_set_clientdata(i2c, aw88395); 523 524 aw88395->reset_gpio = devm_gpiod_get_optional(&i2c->dev, "reset", GPIOD_OUT_LOW); 525 if (IS_ERR(aw88395->reset_gpio)) 526 dev_info(&i2c->dev, "reset gpio not defined\n"); 527 528 /* hardware reset */ 529 aw88395_hw_reset(aw88395); 530 531 aw88395->regmap = devm_regmap_init_i2c(i2c, &aw88395_remap_config); 532 if (IS_ERR(aw88395->regmap)) { 533 ret = PTR_ERR(aw88395->regmap); 534 dev_err(&i2c->dev, "Failed to init regmap: %d\n", ret); 535 return ret; 536 } 537 538 /* aw pa init */ 539 ret = aw88395_init(&aw88395->aw_pa, i2c, aw88395->regmap); 540 if (ret < 0) 541 return ret; 542 543 ret = aw88395_request_firmware_file(aw88395); 544 if (ret < 0) { 545 dev_err(&i2c->dev, "%s failed\n", __func__); 546 return ret; 547 } 548 549 ret = devm_snd_soc_register_component(&i2c->dev, 550 &soc_codec_dev_aw88395, 551 aw88395_dai, ARRAY_SIZE(aw88395_dai)); 552 if (ret < 0) { 553 dev_err(&i2c->dev, "failed to register aw88395: %d", ret); 554 return ret; 555 } 556 557 return 0; 558 } 559 560 static const struct i2c_device_id aw88395_i2c_id[] = { 561 { AW88395_I2C_NAME }, 562 { } 563 }; 564 MODULE_DEVICE_TABLE(i2c, aw88395_i2c_id); 565 566 static struct i2c_driver aw88395_i2c_driver = { 567 .driver = { 568 .name = AW88395_I2C_NAME, 569 }, 570 .probe = aw88395_i2c_probe, 571 .id_table = aw88395_i2c_id, 572 }; 573 module_i2c_driver(aw88395_i2c_driver); 574 575 MODULE_DESCRIPTION("ASoC AW88395 Smart PA Driver"); 576 MODULE_LICENSE("GPL v2"); 577