1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (c) 2019-2020, The Linux Foundation. All rights reserved. 4 * Copyright (c) 2022, Linaro Ltd 5 */ 6 #include <linux/auxiliary_bus.h> 7 #include <linux/module.h> 8 #include <linux/mutex.h> 9 #include <linux/of_device.h> 10 #include <linux/power_supply.h> 11 #include <linux/soc/qcom/pdr.h> 12 #include <linux/soc/qcom/pmic_glink.h> 13 #include <linux/math.h> 14 #include <linux/units.h> 15 16 #define BATTMGR_CHEMISTRY_LEN 4 17 #define BATTMGR_STRING_LEN 128 18 19 enum qcom_battmgr_variant { 20 QCOM_BATTMGR_SM8350, 21 QCOM_BATTMGR_SC8280XP, 22 }; 23 24 #define BATTMGR_BAT_STATUS 0x1 25 26 #define BATTMGR_REQUEST_NOTIFICATION 0x4 27 28 #define BATTMGR_NOTIFICATION 0x7 29 #define NOTIF_BAT_PROPERTY 0x30 30 #define NOTIF_USB_PROPERTY 0x32 31 #define NOTIF_WLS_PROPERTY 0x34 32 #define NOTIF_BAT_INFO 0x81 33 #define NOTIF_BAT_STATUS 0x80 34 35 #define BATTMGR_BAT_INFO 0x9 36 37 #define BATTMGR_BAT_DISCHARGE_TIME 0xc 38 39 #define BATTMGR_BAT_CHARGE_TIME 0xd 40 41 #define BATTMGR_BAT_PROPERTY_GET 0x30 42 #define BATTMGR_BAT_PROPERTY_SET 0x31 43 #define BATT_STATUS 0 44 #define BATT_HEALTH 1 45 #define BATT_PRESENT 2 46 #define BATT_CHG_TYPE 3 47 #define BATT_CAPACITY 4 48 #define BATT_SOH 5 49 #define BATT_VOLT_OCV 6 50 #define BATT_VOLT_NOW 7 51 #define BATT_VOLT_MAX 8 52 #define BATT_CURR_NOW 9 53 #define BATT_CHG_CTRL_LIM 10 54 #define BATT_CHG_CTRL_LIM_MAX 11 55 #define BATT_TEMP 12 56 #define BATT_TECHNOLOGY 13 57 #define BATT_CHG_COUNTER 14 58 #define BATT_CYCLE_COUNT 15 59 #define BATT_CHG_FULL_DESIGN 16 60 #define BATT_CHG_FULL 17 61 #define BATT_MODEL_NAME 18 62 #define BATT_TTF_AVG 19 63 #define BATT_TTE_AVG 20 64 #define BATT_RESISTANCE 21 65 #define BATT_POWER_NOW 22 66 #define BATT_POWER_AVG 23 67 68 #define BATTMGR_USB_PROPERTY_GET 0x32 69 #define BATTMGR_USB_PROPERTY_SET 0x33 70 #define USB_ONLINE 0 71 #define USB_VOLT_NOW 1 72 #define USB_VOLT_MAX 2 73 #define USB_CURR_NOW 3 74 #define USB_CURR_MAX 4 75 #define USB_INPUT_CURR_LIMIT 5 76 #define USB_TYPE 6 77 #define USB_ADAP_TYPE 7 78 #define USB_MOISTURE_DET_EN 8 79 #define USB_MOISTURE_DET_STS 9 80 81 #define BATTMGR_WLS_PROPERTY_GET 0x34 82 #define BATTMGR_WLS_PROPERTY_SET 0x35 83 #define WLS_ONLINE 0 84 #define WLS_VOLT_NOW 1 85 #define WLS_VOLT_MAX 2 86 #define WLS_CURR_NOW 3 87 #define WLS_CURR_MAX 4 88 #define WLS_TYPE 5 89 #define WLS_BOOST_EN 6 90 91 struct qcom_battmgr_enable_request { 92 struct pmic_glink_hdr hdr; 93 __le32 battery_id; 94 __le32 power_state; 95 __le32 low_capacity; 96 __le32 high_capacity; 97 }; 98 99 struct qcom_battmgr_property_request { 100 struct pmic_glink_hdr hdr; 101 __le32 battery; 102 __le32 property; 103 __le32 value; 104 }; 105 106 struct qcom_battmgr_update_request { 107 struct pmic_glink_hdr hdr; 108 __le32 battery_id; 109 }; 110 111 struct qcom_battmgr_charge_time_request { 112 struct pmic_glink_hdr hdr; 113 __le32 battery_id; 114 __le32 percent; 115 __le32 reserved; 116 }; 117 118 struct qcom_battmgr_discharge_time_request { 119 struct pmic_glink_hdr hdr; 120 __le32 battery_id; 121 __le32 rate; /* 0 for current rate */ 122 __le32 reserved; 123 }; 124 125 struct qcom_battmgr_message { 126 struct pmic_glink_hdr hdr; 127 union { 128 struct { 129 __le32 property; 130 __le32 value; 131 __le32 result; 132 } intval; 133 struct { 134 __le32 property; 135 char model[BATTMGR_STRING_LEN]; 136 } strval; 137 struct { 138 /* 139 * 0: mWh 140 * 1: mAh 141 */ 142 __le32 power_unit; 143 __le32 design_capacity; 144 __le32 last_full_capacity; 145 /* 146 * 0 nonrechargable 147 * 1 rechargable 148 */ 149 __le32 battery_tech; 150 __le32 design_voltage; /* mV */ 151 __le32 capacity_low; 152 __le32 capacity_warning; 153 __le32 cycle_count; 154 /* thousandth of persent */ 155 __le32 accuracy; 156 __le32 max_sample_time_ms; 157 __le32 min_sample_time_ms; 158 __le32 max_average_interval_ms; 159 __le32 min_average_interval_ms; 160 /* granularity between low and warning */ 161 __le32 capacity_granularity1; 162 /* granularity between warning and full */ 163 __le32 capacity_granularity2; 164 /* 165 * 0: no 166 * 1: cold 167 * 2: hot 168 */ 169 __le32 swappable; 170 __le32 capabilities; 171 char model_number[BATTMGR_STRING_LEN]; 172 char serial_number[BATTMGR_STRING_LEN]; 173 char battery_type[BATTMGR_STRING_LEN]; 174 char oem_info[BATTMGR_STRING_LEN]; 175 char battery_chemistry[BATTMGR_CHEMISTRY_LEN]; 176 char uid[BATTMGR_STRING_LEN]; 177 __le32 critical_bias; 178 u8 day; 179 u8 month; 180 __le16 year; 181 __le32 battery_id; 182 } info; 183 struct { 184 /* 185 * BIT(0) discharging 186 * BIT(1) charging 187 * BIT(2) critical low 188 */ 189 __le32 battery_state; 190 /* mWh or mAh, based on info->power_unit */ 191 __le32 capacity; 192 __le32 rate; 193 /* mv */ 194 __le32 battery_voltage; 195 /* 196 * BIT(0) power online 197 * BIT(1) discharging 198 * BIT(2) charging 199 * BIT(3) battery critical 200 */ 201 __le32 power_state; 202 /* 203 * 1: AC 204 * 2: USB 205 * 3: Wireless 206 */ 207 __le32 charging_source; 208 __le32 temperature; 209 } status; 210 __le32 time; 211 __le32 notification; 212 }; 213 }; 214 215 #define BATTMGR_CHARGING_SOURCE_AC 1 216 #define BATTMGR_CHARGING_SOURCE_USB 2 217 #define BATTMGR_CHARGING_SOURCE_WIRELESS 3 218 219 enum qcom_battmgr_unit { 220 QCOM_BATTMGR_UNIT_mWh = 0, 221 QCOM_BATTMGR_UNIT_mAh = 1 222 }; 223 224 struct qcom_battmgr_info { 225 bool valid; 226 227 bool present; 228 unsigned int charge_type; 229 unsigned int design_capacity; 230 unsigned int last_full_capacity; 231 unsigned int voltage_max_design; 232 unsigned int voltage_max; 233 unsigned int capacity_low; 234 unsigned int capacity_warning; 235 unsigned int cycle_count; 236 unsigned int charge_count; 237 char model_number[BATTMGR_STRING_LEN]; 238 char serial_number[BATTMGR_STRING_LEN]; 239 char oem_info[BATTMGR_STRING_LEN]; 240 unsigned char technology; 241 unsigned char day; 242 unsigned char month; 243 unsigned short year; 244 }; 245 246 struct qcom_battmgr_status { 247 unsigned int status; 248 unsigned int health; 249 unsigned int capacity; 250 unsigned int percent; 251 int current_now; 252 int power_now; 253 unsigned int voltage_now; 254 unsigned int voltage_ocv; 255 unsigned int temperature; 256 257 unsigned int discharge_time; 258 unsigned int charge_time; 259 }; 260 261 struct qcom_battmgr_ac { 262 bool online; 263 }; 264 265 struct qcom_battmgr_usb { 266 bool online; 267 unsigned int voltage_now; 268 unsigned int voltage_max; 269 unsigned int current_now; 270 unsigned int current_max; 271 unsigned int current_limit; 272 unsigned int usb_type; 273 }; 274 275 struct qcom_battmgr_wireless { 276 bool online; 277 unsigned int voltage_now; 278 unsigned int voltage_max; 279 unsigned int current_now; 280 unsigned int current_max; 281 }; 282 283 struct qcom_battmgr { 284 struct device *dev; 285 struct pmic_glink_client *client; 286 287 enum qcom_battmgr_variant variant; 288 289 struct power_supply *ac_psy; 290 struct power_supply *bat_psy; 291 struct power_supply *usb_psy; 292 struct power_supply *wls_psy; 293 294 enum qcom_battmgr_unit unit; 295 296 int error; 297 struct completion ack; 298 299 bool service_up; 300 301 struct qcom_battmgr_info info; 302 struct qcom_battmgr_status status; 303 struct qcom_battmgr_ac ac; 304 struct qcom_battmgr_usb usb; 305 struct qcom_battmgr_wireless wireless; 306 307 struct work_struct enable_work; 308 309 /* 310 * @lock is used to prevent concurrent power supply requests to the 311 * firmware, as it then stops responding. 312 */ 313 struct mutex lock; 314 }; 315 316 static int qcom_battmgr_request(struct qcom_battmgr *battmgr, void *data, size_t len) 317 { 318 unsigned long left; 319 int ret; 320 321 reinit_completion(&battmgr->ack); 322 323 battmgr->error = 0; 324 325 ret = pmic_glink_send(battmgr->client, data, len); 326 if (ret < 0) 327 return ret; 328 329 left = wait_for_completion_timeout(&battmgr->ack, HZ); 330 if (!left) 331 return -ETIMEDOUT; 332 333 return battmgr->error; 334 } 335 336 static int qcom_battmgr_request_property(struct qcom_battmgr *battmgr, int opcode, 337 int property, u32 value) 338 { 339 struct qcom_battmgr_property_request request = { 340 .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR), 341 .hdr.type = cpu_to_le32(PMIC_GLINK_REQ_RESP), 342 .hdr.opcode = cpu_to_le32(opcode), 343 .battery = cpu_to_le32(0), 344 .property = cpu_to_le32(property), 345 .value = cpu_to_le32(value), 346 }; 347 348 return qcom_battmgr_request(battmgr, &request, sizeof(request)); 349 } 350 351 static int qcom_battmgr_update_status(struct qcom_battmgr *battmgr) 352 { 353 struct qcom_battmgr_update_request request = { 354 .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR), 355 .hdr.type = cpu_to_le32(PMIC_GLINK_REQ_RESP), 356 .hdr.opcode = cpu_to_le32(BATTMGR_BAT_STATUS), 357 .battery_id = cpu_to_le32(0), 358 }; 359 360 return qcom_battmgr_request(battmgr, &request, sizeof(request)); 361 } 362 363 static int qcom_battmgr_update_info(struct qcom_battmgr *battmgr) 364 { 365 struct qcom_battmgr_update_request request = { 366 .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR), 367 .hdr.type = cpu_to_le32(PMIC_GLINK_REQ_RESP), 368 .hdr.opcode = cpu_to_le32(BATTMGR_BAT_INFO), 369 .battery_id = cpu_to_le32(0), 370 }; 371 372 return qcom_battmgr_request(battmgr, &request, sizeof(request)); 373 } 374 375 static int qcom_battmgr_update_charge_time(struct qcom_battmgr *battmgr) 376 { 377 struct qcom_battmgr_charge_time_request request = { 378 .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR), 379 .hdr.type = cpu_to_le32(PMIC_GLINK_REQ_RESP), 380 .hdr.opcode = cpu_to_le32(BATTMGR_BAT_CHARGE_TIME), 381 .battery_id = cpu_to_le32(0), 382 .percent = cpu_to_le32(100), 383 }; 384 385 return qcom_battmgr_request(battmgr, &request, sizeof(request)); 386 } 387 388 static int qcom_battmgr_update_discharge_time(struct qcom_battmgr *battmgr) 389 { 390 struct qcom_battmgr_discharge_time_request request = { 391 .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR), 392 .hdr.type = cpu_to_le32(PMIC_GLINK_REQ_RESP), 393 .hdr.opcode = cpu_to_le32(BATTMGR_BAT_DISCHARGE_TIME), 394 .battery_id = cpu_to_le32(0), 395 .rate = cpu_to_le32(0), 396 }; 397 398 return qcom_battmgr_request(battmgr, &request, sizeof(request)); 399 } 400 401 static const u8 sm8350_bat_prop_map[] = { 402 [POWER_SUPPLY_PROP_STATUS] = BATT_STATUS, 403 [POWER_SUPPLY_PROP_HEALTH] = BATT_HEALTH, 404 [POWER_SUPPLY_PROP_PRESENT] = BATT_PRESENT, 405 [POWER_SUPPLY_PROP_CHARGE_TYPE] = BATT_CHG_TYPE, 406 [POWER_SUPPLY_PROP_CAPACITY] = BATT_CAPACITY, 407 [POWER_SUPPLY_PROP_VOLTAGE_OCV] = BATT_VOLT_OCV, 408 [POWER_SUPPLY_PROP_VOLTAGE_NOW] = BATT_VOLT_NOW, 409 [POWER_SUPPLY_PROP_VOLTAGE_MAX] = BATT_VOLT_MAX, 410 [POWER_SUPPLY_PROP_CURRENT_NOW] = BATT_CURR_NOW, 411 [POWER_SUPPLY_PROP_TEMP] = BATT_TEMP, 412 [POWER_SUPPLY_PROP_TECHNOLOGY] = BATT_TECHNOLOGY, 413 [POWER_SUPPLY_PROP_CHARGE_COUNTER] = BATT_CHG_COUNTER, 414 [POWER_SUPPLY_PROP_CYCLE_COUNT] = BATT_CYCLE_COUNT, 415 [POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN] = BATT_CHG_FULL_DESIGN, 416 [POWER_SUPPLY_PROP_CHARGE_FULL] = BATT_CHG_FULL, 417 [POWER_SUPPLY_PROP_MODEL_NAME] = BATT_MODEL_NAME, 418 [POWER_SUPPLY_PROP_TIME_TO_FULL_AVG] = BATT_TTF_AVG, 419 [POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG] = BATT_TTE_AVG, 420 [POWER_SUPPLY_PROP_POWER_NOW] = BATT_POWER_NOW, 421 }; 422 423 static int qcom_battmgr_bat_sm8350_update(struct qcom_battmgr *battmgr, 424 enum power_supply_property psp) 425 { 426 unsigned int prop; 427 int ret; 428 429 if (psp >= ARRAY_SIZE(sm8350_bat_prop_map)) 430 return -EINVAL; 431 432 prop = sm8350_bat_prop_map[psp]; 433 434 mutex_lock(&battmgr->lock); 435 ret = qcom_battmgr_request_property(battmgr, BATTMGR_BAT_PROPERTY_GET, prop, 0); 436 mutex_unlock(&battmgr->lock); 437 438 return ret; 439 } 440 441 static int qcom_battmgr_bat_sc8280xp_update(struct qcom_battmgr *battmgr, 442 enum power_supply_property psp) 443 { 444 int ret; 445 446 mutex_lock(&battmgr->lock); 447 448 if (!battmgr->info.valid) { 449 ret = qcom_battmgr_update_info(battmgr); 450 if (ret < 0) 451 goto out_unlock; 452 battmgr->info.valid = true; 453 } 454 455 ret = qcom_battmgr_update_status(battmgr); 456 if (ret < 0) 457 goto out_unlock; 458 459 if (psp == POWER_SUPPLY_PROP_TIME_TO_FULL_AVG) { 460 ret = qcom_battmgr_update_charge_time(battmgr); 461 if (ret < 0) { 462 ret = -ENODATA; 463 goto out_unlock; 464 } 465 } 466 467 if (psp == POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG) { 468 ret = qcom_battmgr_update_discharge_time(battmgr); 469 if (ret < 0) { 470 ret = -ENODATA; 471 goto out_unlock; 472 } 473 } 474 475 out_unlock: 476 mutex_unlock(&battmgr->lock); 477 return ret; 478 } 479 480 static int qcom_battmgr_bat_get_property(struct power_supply *psy, 481 enum power_supply_property psp, 482 union power_supply_propval *val) 483 { 484 struct qcom_battmgr *battmgr = power_supply_get_drvdata(psy); 485 enum qcom_battmgr_unit unit = battmgr->unit; 486 int ret; 487 488 if (!battmgr->service_up) 489 return -EAGAIN; 490 491 if (battmgr->variant == QCOM_BATTMGR_SC8280XP) 492 ret = qcom_battmgr_bat_sc8280xp_update(battmgr, psp); 493 else 494 ret = qcom_battmgr_bat_sm8350_update(battmgr, psp); 495 if (ret < 0) 496 return ret; 497 498 switch (psp) { 499 case POWER_SUPPLY_PROP_STATUS: 500 val->intval = battmgr->status.status; 501 break; 502 case POWER_SUPPLY_PROP_CHARGE_TYPE: 503 val->intval = battmgr->info.charge_type; 504 break; 505 case POWER_SUPPLY_PROP_HEALTH: 506 val->intval = battmgr->status.health; 507 break; 508 case POWER_SUPPLY_PROP_PRESENT: 509 val->intval = battmgr->info.present; 510 break; 511 case POWER_SUPPLY_PROP_TECHNOLOGY: 512 val->intval = battmgr->info.technology; 513 break; 514 case POWER_SUPPLY_PROP_CYCLE_COUNT: 515 val->intval = battmgr->info.cycle_count; 516 break; 517 case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: 518 val->intval = battmgr->info.voltage_max_design; 519 break; 520 case POWER_SUPPLY_PROP_VOLTAGE_MAX: 521 val->intval = battmgr->info.voltage_max; 522 break; 523 case POWER_SUPPLY_PROP_VOLTAGE_NOW: 524 val->intval = battmgr->status.voltage_now; 525 break; 526 case POWER_SUPPLY_PROP_VOLTAGE_OCV: 527 val->intval = battmgr->status.voltage_ocv; 528 break; 529 case POWER_SUPPLY_PROP_CURRENT_NOW: 530 val->intval = battmgr->status.current_now; 531 break; 532 case POWER_SUPPLY_PROP_POWER_NOW: 533 val->intval = battmgr->status.power_now; 534 break; 535 case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: 536 if (unit != QCOM_BATTMGR_UNIT_mAh) 537 return -ENODATA; 538 val->intval = battmgr->info.design_capacity; 539 break; 540 case POWER_SUPPLY_PROP_CHARGE_FULL: 541 if (unit != QCOM_BATTMGR_UNIT_mAh) 542 return -ENODATA; 543 val->intval = battmgr->info.last_full_capacity; 544 break; 545 case POWER_SUPPLY_PROP_CHARGE_EMPTY: 546 if (unit != QCOM_BATTMGR_UNIT_mAh) 547 return -ENODATA; 548 val->intval = battmgr->info.capacity_low; 549 break; 550 case POWER_SUPPLY_PROP_CHARGE_NOW: 551 if (unit != QCOM_BATTMGR_UNIT_mAh) 552 return -ENODATA; 553 val->intval = battmgr->status.capacity; 554 break; 555 case POWER_SUPPLY_PROP_CHARGE_COUNTER: 556 val->intval = battmgr->info.charge_count; 557 break; 558 case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN: 559 if (unit != QCOM_BATTMGR_UNIT_mWh) 560 return -ENODATA; 561 val->intval = battmgr->info.design_capacity; 562 break; 563 case POWER_SUPPLY_PROP_ENERGY_FULL: 564 if (unit != QCOM_BATTMGR_UNIT_mWh) 565 return -ENODATA; 566 val->intval = battmgr->info.last_full_capacity; 567 break; 568 case POWER_SUPPLY_PROP_ENERGY_EMPTY: 569 if (unit != QCOM_BATTMGR_UNIT_mWh) 570 return -ENODATA; 571 val->intval = battmgr->info.capacity_low; 572 break; 573 case POWER_SUPPLY_PROP_ENERGY_NOW: 574 if (unit != QCOM_BATTMGR_UNIT_mWh) 575 return -ENODATA; 576 val->intval = battmgr->status.capacity; 577 break; 578 case POWER_SUPPLY_PROP_CAPACITY: 579 val->intval = battmgr->status.percent; 580 break; 581 case POWER_SUPPLY_PROP_TEMP: 582 val->intval = battmgr->status.temperature; 583 break; 584 case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG: 585 val->intval = battmgr->status.discharge_time; 586 break; 587 case POWER_SUPPLY_PROP_TIME_TO_FULL_AVG: 588 val->intval = battmgr->status.charge_time; 589 break; 590 case POWER_SUPPLY_PROP_MANUFACTURE_YEAR: 591 val->intval = battmgr->info.year; 592 break; 593 case POWER_SUPPLY_PROP_MANUFACTURE_MONTH: 594 val->intval = battmgr->info.month; 595 break; 596 case POWER_SUPPLY_PROP_MANUFACTURE_DAY: 597 val->intval = battmgr->info.day; 598 break; 599 case POWER_SUPPLY_PROP_MODEL_NAME: 600 val->strval = battmgr->info.model_number; 601 break; 602 case POWER_SUPPLY_PROP_MANUFACTURER: 603 val->strval = battmgr->info.oem_info; 604 break; 605 case POWER_SUPPLY_PROP_SERIAL_NUMBER: 606 val->strval = battmgr->info.serial_number; 607 break; 608 default: 609 return -EINVAL; 610 } 611 612 return 0; 613 } 614 615 static const enum power_supply_property sc8280xp_bat_props[] = { 616 POWER_SUPPLY_PROP_STATUS, 617 POWER_SUPPLY_PROP_PRESENT, 618 POWER_SUPPLY_PROP_TECHNOLOGY, 619 POWER_SUPPLY_PROP_CYCLE_COUNT, 620 POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, 621 POWER_SUPPLY_PROP_VOLTAGE_NOW, 622 POWER_SUPPLY_PROP_POWER_NOW, 623 POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 624 POWER_SUPPLY_PROP_CHARGE_FULL, 625 POWER_SUPPLY_PROP_CHARGE_EMPTY, 626 POWER_SUPPLY_PROP_CHARGE_NOW, 627 POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN, 628 POWER_SUPPLY_PROP_ENERGY_FULL, 629 POWER_SUPPLY_PROP_ENERGY_EMPTY, 630 POWER_SUPPLY_PROP_ENERGY_NOW, 631 POWER_SUPPLY_PROP_TEMP, 632 POWER_SUPPLY_PROP_MANUFACTURE_YEAR, 633 POWER_SUPPLY_PROP_MANUFACTURE_MONTH, 634 POWER_SUPPLY_PROP_MANUFACTURE_DAY, 635 POWER_SUPPLY_PROP_MODEL_NAME, 636 POWER_SUPPLY_PROP_MANUFACTURER, 637 POWER_SUPPLY_PROP_SERIAL_NUMBER, 638 }; 639 640 static const struct power_supply_desc sc8280xp_bat_psy_desc = { 641 .name = "qcom-battmgr-bat", 642 .type = POWER_SUPPLY_TYPE_BATTERY, 643 .properties = sc8280xp_bat_props, 644 .num_properties = ARRAY_SIZE(sc8280xp_bat_props), 645 .get_property = qcom_battmgr_bat_get_property, 646 }; 647 648 static const enum power_supply_property sm8350_bat_props[] = { 649 POWER_SUPPLY_PROP_STATUS, 650 POWER_SUPPLY_PROP_HEALTH, 651 POWER_SUPPLY_PROP_PRESENT, 652 POWER_SUPPLY_PROP_CHARGE_TYPE, 653 POWER_SUPPLY_PROP_CAPACITY, 654 POWER_SUPPLY_PROP_VOLTAGE_OCV, 655 POWER_SUPPLY_PROP_VOLTAGE_NOW, 656 POWER_SUPPLY_PROP_VOLTAGE_MAX, 657 POWER_SUPPLY_PROP_CURRENT_NOW, 658 POWER_SUPPLY_PROP_TEMP, 659 POWER_SUPPLY_PROP_TECHNOLOGY, 660 POWER_SUPPLY_PROP_CHARGE_COUNTER, 661 POWER_SUPPLY_PROP_CYCLE_COUNT, 662 POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 663 POWER_SUPPLY_PROP_CHARGE_FULL, 664 POWER_SUPPLY_PROP_MODEL_NAME, 665 POWER_SUPPLY_PROP_TIME_TO_FULL_AVG, 666 POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, 667 POWER_SUPPLY_PROP_POWER_NOW, 668 }; 669 670 static const struct power_supply_desc sm8350_bat_psy_desc = { 671 .name = "qcom-battmgr-bat", 672 .type = POWER_SUPPLY_TYPE_BATTERY, 673 .properties = sm8350_bat_props, 674 .num_properties = ARRAY_SIZE(sm8350_bat_props), 675 .get_property = qcom_battmgr_bat_get_property, 676 }; 677 678 static int qcom_battmgr_ac_get_property(struct power_supply *psy, 679 enum power_supply_property psp, 680 union power_supply_propval *val) 681 { 682 struct qcom_battmgr *battmgr = power_supply_get_drvdata(psy); 683 int ret; 684 685 if (!battmgr->service_up) 686 return -EAGAIN; 687 688 ret = qcom_battmgr_bat_sc8280xp_update(battmgr, psp); 689 if (ret) 690 return ret; 691 692 switch (psp) { 693 case POWER_SUPPLY_PROP_ONLINE: 694 val->intval = battmgr->ac.online; 695 break; 696 default: 697 return -EINVAL; 698 } 699 700 return 0; 701 } 702 703 static const enum power_supply_property sc8280xp_ac_props[] = { 704 POWER_SUPPLY_PROP_ONLINE, 705 }; 706 707 static const struct power_supply_desc sc8280xp_ac_psy_desc = { 708 .name = "qcom-battmgr-ac", 709 .type = POWER_SUPPLY_TYPE_MAINS, 710 .properties = sc8280xp_ac_props, 711 .num_properties = ARRAY_SIZE(sc8280xp_ac_props), 712 .get_property = qcom_battmgr_ac_get_property, 713 }; 714 715 static const u8 sm8350_usb_prop_map[] = { 716 [POWER_SUPPLY_PROP_ONLINE] = USB_ONLINE, 717 [POWER_SUPPLY_PROP_VOLTAGE_NOW] = USB_VOLT_NOW, 718 [POWER_SUPPLY_PROP_VOLTAGE_MAX] = USB_VOLT_MAX, 719 [POWER_SUPPLY_PROP_CURRENT_NOW] = USB_CURR_NOW, 720 [POWER_SUPPLY_PROP_CURRENT_MAX] = USB_CURR_MAX, 721 [POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT] = USB_INPUT_CURR_LIMIT, 722 [POWER_SUPPLY_PROP_USB_TYPE] = USB_TYPE, 723 }; 724 725 static int qcom_battmgr_usb_sm8350_update(struct qcom_battmgr *battmgr, 726 enum power_supply_property psp) 727 { 728 unsigned int prop; 729 int ret; 730 731 if (psp >= ARRAY_SIZE(sm8350_usb_prop_map)) 732 return -EINVAL; 733 734 prop = sm8350_usb_prop_map[psp]; 735 736 mutex_lock(&battmgr->lock); 737 ret = qcom_battmgr_request_property(battmgr, BATTMGR_USB_PROPERTY_GET, prop, 0); 738 mutex_unlock(&battmgr->lock); 739 740 return ret; 741 } 742 743 static int qcom_battmgr_usb_get_property(struct power_supply *psy, 744 enum power_supply_property psp, 745 union power_supply_propval *val) 746 { 747 struct qcom_battmgr *battmgr = power_supply_get_drvdata(psy); 748 int ret; 749 750 if (!battmgr->service_up) 751 return -EAGAIN; 752 753 if (battmgr->variant == QCOM_BATTMGR_SC8280XP) 754 ret = qcom_battmgr_bat_sc8280xp_update(battmgr, psp); 755 else 756 ret = qcom_battmgr_usb_sm8350_update(battmgr, psp); 757 if (ret) 758 return ret; 759 760 switch (psp) { 761 case POWER_SUPPLY_PROP_ONLINE: 762 val->intval = battmgr->usb.online; 763 break; 764 case POWER_SUPPLY_PROP_VOLTAGE_NOW: 765 val->intval = battmgr->usb.voltage_now; 766 break; 767 case POWER_SUPPLY_PROP_VOLTAGE_MAX: 768 val->intval = battmgr->usb.voltage_max; 769 break; 770 case POWER_SUPPLY_PROP_CURRENT_NOW: 771 val->intval = battmgr->usb.current_now; 772 break; 773 case POWER_SUPPLY_PROP_CURRENT_MAX: 774 val->intval = battmgr->usb.current_max; 775 break; 776 case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: 777 val->intval = battmgr->usb.current_limit; 778 break; 779 case POWER_SUPPLY_PROP_USB_TYPE: 780 val->intval = battmgr->usb.usb_type; 781 break; 782 default: 783 return -EINVAL; 784 } 785 786 return 0; 787 } 788 789 static const enum power_supply_usb_type usb_psy_supported_types[] = { 790 POWER_SUPPLY_USB_TYPE_UNKNOWN, 791 POWER_SUPPLY_USB_TYPE_SDP, 792 POWER_SUPPLY_USB_TYPE_DCP, 793 POWER_SUPPLY_USB_TYPE_CDP, 794 POWER_SUPPLY_USB_TYPE_ACA, 795 POWER_SUPPLY_USB_TYPE_C, 796 POWER_SUPPLY_USB_TYPE_PD, 797 POWER_SUPPLY_USB_TYPE_PD_DRP, 798 POWER_SUPPLY_USB_TYPE_PD_PPS, 799 POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID, 800 }; 801 802 static const enum power_supply_property sc8280xp_usb_props[] = { 803 POWER_SUPPLY_PROP_ONLINE, 804 }; 805 806 static const struct power_supply_desc sc8280xp_usb_psy_desc = { 807 .name = "qcom-battmgr-usb", 808 .type = POWER_SUPPLY_TYPE_USB, 809 .properties = sc8280xp_usb_props, 810 .num_properties = ARRAY_SIZE(sc8280xp_usb_props), 811 .get_property = qcom_battmgr_usb_get_property, 812 .usb_types = usb_psy_supported_types, 813 .num_usb_types = ARRAY_SIZE(usb_psy_supported_types), 814 }; 815 816 static const enum power_supply_property sm8350_usb_props[] = { 817 POWER_SUPPLY_PROP_ONLINE, 818 POWER_SUPPLY_PROP_VOLTAGE_NOW, 819 POWER_SUPPLY_PROP_VOLTAGE_MAX, 820 POWER_SUPPLY_PROP_CURRENT_NOW, 821 POWER_SUPPLY_PROP_CURRENT_MAX, 822 POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT, 823 POWER_SUPPLY_PROP_USB_TYPE, 824 }; 825 826 static const struct power_supply_desc sm8350_usb_psy_desc = { 827 .name = "qcom-battmgr-usb", 828 .type = POWER_SUPPLY_TYPE_USB, 829 .properties = sm8350_usb_props, 830 .num_properties = ARRAY_SIZE(sm8350_usb_props), 831 .get_property = qcom_battmgr_usb_get_property, 832 .usb_types = usb_psy_supported_types, 833 .num_usb_types = ARRAY_SIZE(usb_psy_supported_types), 834 }; 835 836 static const u8 sm8350_wls_prop_map[] = { 837 [POWER_SUPPLY_PROP_ONLINE] = WLS_ONLINE, 838 [POWER_SUPPLY_PROP_VOLTAGE_NOW] = WLS_VOLT_NOW, 839 [POWER_SUPPLY_PROP_VOLTAGE_MAX] = WLS_VOLT_MAX, 840 [POWER_SUPPLY_PROP_CURRENT_NOW] = WLS_CURR_NOW, 841 [POWER_SUPPLY_PROP_CURRENT_MAX] = WLS_CURR_MAX, 842 }; 843 844 static int qcom_battmgr_wls_sm8350_update(struct qcom_battmgr *battmgr, 845 enum power_supply_property psp) 846 { 847 unsigned int prop; 848 int ret; 849 850 if (psp >= ARRAY_SIZE(sm8350_wls_prop_map)) 851 return -EINVAL; 852 853 prop = sm8350_wls_prop_map[psp]; 854 855 mutex_lock(&battmgr->lock); 856 ret = qcom_battmgr_request_property(battmgr, BATTMGR_WLS_PROPERTY_GET, prop, 0); 857 mutex_unlock(&battmgr->lock); 858 859 return ret; 860 } 861 862 static int qcom_battmgr_wls_get_property(struct power_supply *psy, 863 enum power_supply_property psp, 864 union power_supply_propval *val) 865 { 866 struct qcom_battmgr *battmgr = power_supply_get_drvdata(psy); 867 int ret; 868 869 if (!battmgr->service_up) 870 return -EAGAIN; 871 872 if (battmgr->variant == QCOM_BATTMGR_SC8280XP) 873 ret = qcom_battmgr_bat_sc8280xp_update(battmgr, psp); 874 else 875 ret = qcom_battmgr_wls_sm8350_update(battmgr, psp); 876 if (ret < 0) 877 return ret; 878 879 switch (psp) { 880 case POWER_SUPPLY_PROP_ONLINE: 881 val->intval = battmgr->wireless.online; 882 break; 883 case POWER_SUPPLY_PROP_VOLTAGE_NOW: 884 val->intval = battmgr->wireless.voltage_now; 885 break; 886 case POWER_SUPPLY_PROP_VOLTAGE_MAX: 887 val->intval = battmgr->wireless.voltage_max; 888 break; 889 case POWER_SUPPLY_PROP_CURRENT_NOW: 890 val->intval = battmgr->wireless.current_now; 891 break; 892 case POWER_SUPPLY_PROP_CURRENT_MAX: 893 val->intval = battmgr->wireless.current_max; 894 break; 895 default: 896 return -EINVAL; 897 } 898 899 return 0; 900 } 901 902 static const enum power_supply_property sc8280xp_wls_props[] = { 903 POWER_SUPPLY_PROP_ONLINE, 904 }; 905 906 static const struct power_supply_desc sc8280xp_wls_psy_desc = { 907 .name = "qcom-battmgr-wls", 908 .type = POWER_SUPPLY_TYPE_WIRELESS, 909 .properties = sc8280xp_wls_props, 910 .num_properties = ARRAY_SIZE(sc8280xp_wls_props), 911 .get_property = qcom_battmgr_wls_get_property, 912 }; 913 914 static const enum power_supply_property sm8350_wls_props[] = { 915 POWER_SUPPLY_PROP_ONLINE, 916 POWER_SUPPLY_PROP_VOLTAGE_NOW, 917 POWER_SUPPLY_PROP_VOLTAGE_MAX, 918 POWER_SUPPLY_PROP_CURRENT_NOW, 919 POWER_SUPPLY_PROP_CURRENT_MAX, 920 }; 921 922 static const struct power_supply_desc sm8350_wls_psy_desc = { 923 .name = "qcom-battmgr-wls", 924 .type = POWER_SUPPLY_TYPE_WIRELESS, 925 .properties = sm8350_wls_props, 926 .num_properties = ARRAY_SIZE(sm8350_wls_props), 927 .get_property = qcom_battmgr_wls_get_property, 928 }; 929 930 static void qcom_battmgr_notification(struct qcom_battmgr *battmgr, 931 const struct qcom_battmgr_message *msg, 932 int len) 933 { 934 size_t payload_len = len - sizeof(struct pmic_glink_hdr); 935 unsigned int notification; 936 937 if (payload_len != sizeof(msg->notification)) { 938 dev_warn(battmgr->dev, "ignoring notification with invalid length\n"); 939 return; 940 } 941 942 notification = le32_to_cpu(msg->notification); 943 switch (notification) { 944 case NOTIF_BAT_INFO: 945 battmgr->info.valid = false; 946 fallthrough; 947 case NOTIF_BAT_STATUS: 948 case NOTIF_BAT_PROPERTY: 949 power_supply_changed(battmgr->bat_psy); 950 break; 951 case NOTIF_USB_PROPERTY: 952 power_supply_changed(battmgr->usb_psy); 953 break; 954 case NOTIF_WLS_PROPERTY: 955 power_supply_changed(battmgr->wls_psy); 956 break; 957 default: 958 dev_err(battmgr->dev, "unknown notification: %#x\n", notification); 959 break; 960 } 961 } 962 963 static void qcom_battmgr_sc8280xp_strcpy(char *dest, const char *src) 964 { 965 size_t len = src[0]; 966 967 /* Some firmware versions return Pascal-style strings */ 968 if (len < BATTMGR_STRING_LEN && len == strnlen(src + 1, BATTMGR_STRING_LEN - 1)) { 969 memcpy(dest, src + 1, len); 970 dest[len] = '\0'; 971 } else { 972 memcpy(dest, src, BATTMGR_STRING_LEN); 973 } 974 } 975 976 static unsigned int qcom_battmgr_sc8280xp_parse_technology(const char *chemistry) 977 { 978 if (!strncmp(chemistry, "LIO", BATTMGR_CHEMISTRY_LEN)) 979 return POWER_SUPPLY_TECHNOLOGY_LION; 980 981 pr_err("Unknown battery technology '%s'\n", chemistry); 982 return POWER_SUPPLY_TECHNOLOGY_UNKNOWN; 983 } 984 985 static unsigned int qcom_battmgr_sc8280xp_convert_temp(unsigned int temperature) 986 { 987 return DIV_ROUND_CLOSEST(temperature, 10); 988 } 989 990 static void qcom_battmgr_sc8280xp_callback(struct qcom_battmgr *battmgr, 991 const struct qcom_battmgr_message *resp, 992 size_t len) 993 { 994 unsigned int opcode = le32_to_cpu(resp->hdr.opcode); 995 unsigned int source; 996 unsigned int state; 997 size_t payload_len = len - sizeof(struct pmic_glink_hdr); 998 999 if (payload_len < sizeof(__le32)) { 1000 dev_warn(battmgr->dev, "invalid payload length for %#x: %zd\n", 1001 opcode, len); 1002 return; 1003 } 1004 1005 switch (opcode) { 1006 case BATTMGR_REQUEST_NOTIFICATION: 1007 battmgr->error = 0; 1008 break; 1009 case BATTMGR_BAT_INFO: 1010 /* some firmware versions report an extra __le32 at the end of the payload */ 1011 if (payload_len != sizeof(resp->info) && 1012 payload_len != (sizeof(resp->info) + sizeof(__le32))) { 1013 dev_warn(battmgr->dev, 1014 "invalid payload length for battery information request: %zd\n", 1015 payload_len); 1016 battmgr->error = -ENODATA; 1017 return; 1018 } 1019 1020 battmgr->unit = le32_to_cpu(resp->info.power_unit); 1021 1022 battmgr->info.present = true; 1023 battmgr->info.design_capacity = le32_to_cpu(resp->info.design_capacity) * 1000; 1024 battmgr->info.last_full_capacity = le32_to_cpu(resp->info.last_full_capacity) * 1000; 1025 battmgr->info.voltage_max_design = le32_to_cpu(resp->info.design_voltage) * 1000; 1026 battmgr->info.capacity_low = le32_to_cpu(resp->info.capacity_low) * 1000; 1027 battmgr->info.cycle_count = le32_to_cpu(resp->info.cycle_count); 1028 qcom_battmgr_sc8280xp_strcpy(battmgr->info.model_number, resp->info.model_number); 1029 qcom_battmgr_sc8280xp_strcpy(battmgr->info.serial_number, resp->info.serial_number); 1030 battmgr->info.technology = qcom_battmgr_sc8280xp_parse_technology(resp->info.battery_chemistry); 1031 qcom_battmgr_sc8280xp_strcpy(battmgr->info.oem_info, resp->info.oem_info); 1032 battmgr->info.day = resp->info.day; 1033 battmgr->info.month = resp->info.month; 1034 battmgr->info.year = le16_to_cpu(resp->info.year); 1035 break; 1036 case BATTMGR_BAT_STATUS: 1037 if (payload_len != sizeof(resp->status)) { 1038 dev_warn(battmgr->dev, 1039 "invalid payload length for battery status request: %zd\n", 1040 payload_len); 1041 battmgr->error = -ENODATA; 1042 return; 1043 } 1044 1045 state = le32_to_cpu(resp->status.battery_state); 1046 if (state & BIT(0)) 1047 battmgr->status.status = POWER_SUPPLY_STATUS_DISCHARGING; 1048 else if (state & BIT(1)) 1049 battmgr->status.status = POWER_SUPPLY_STATUS_CHARGING; 1050 else 1051 battmgr->status.status = POWER_SUPPLY_STATUS_NOT_CHARGING; 1052 1053 battmgr->status.capacity = le32_to_cpu(resp->status.capacity) * 1000; 1054 battmgr->status.power_now = le32_to_cpu(resp->status.rate) * 1000; 1055 battmgr->status.voltage_now = le32_to_cpu(resp->status.battery_voltage) * 1000; 1056 battmgr->status.temperature = qcom_battmgr_sc8280xp_convert_temp(le32_to_cpu(resp->status.temperature)); 1057 1058 source = le32_to_cpu(resp->status.charging_source); 1059 battmgr->ac.online = source == BATTMGR_CHARGING_SOURCE_AC; 1060 battmgr->usb.online = source == BATTMGR_CHARGING_SOURCE_USB; 1061 battmgr->wireless.online = source == BATTMGR_CHARGING_SOURCE_WIRELESS; 1062 break; 1063 case BATTMGR_BAT_DISCHARGE_TIME: 1064 battmgr->status.discharge_time = le32_to_cpu(resp->time); 1065 break; 1066 case BATTMGR_BAT_CHARGE_TIME: 1067 battmgr->status.charge_time = le32_to_cpu(resp->time); 1068 break; 1069 default: 1070 dev_warn(battmgr->dev, "unknown message %#x\n", opcode); 1071 break; 1072 } 1073 1074 complete(&battmgr->ack); 1075 } 1076 1077 static void qcom_battmgr_sm8350_callback(struct qcom_battmgr *battmgr, 1078 const struct qcom_battmgr_message *resp, 1079 size_t len) 1080 { 1081 unsigned int property; 1082 unsigned int opcode = le32_to_cpu(resp->hdr.opcode); 1083 size_t payload_len = len - sizeof(struct pmic_glink_hdr); 1084 unsigned int val; 1085 1086 if (payload_len < sizeof(__le32)) { 1087 dev_warn(battmgr->dev, "invalid payload length for %#x: %zd\n", 1088 opcode, len); 1089 return; 1090 } 1091 1092 switch (opcode) { 1093 case BATTMGR_BAT_PROPERTY_GET: 1094 property = le32_to_cpu(resp->intval.property); 1095 if (property == BATT_MODEL_NAME) { 1096 if (payload_len != sizeof(resp->strval)) { 1097 dev_warn(battmgr->dev, 1098 "invalid payload length for BATT_MODEL_NAME request: %zd\n", 1099 payload_len); 1100 battmgr->error = -ENODATA; 1101 return; 1102 } 1103 } else { 1104 if (payload_len != sizeof(resp->intval)) { 1105 dev_warn(battmgr->dev, 1106 "invalid payload length for %#x request: %zd\n", 1107 property, payload_len); 1108 battmgr->error = -ENODATA; 1109 return; 1110 } 1111 1112 battmgr->error = le32_to_cpu(resp->intval.result); 1113 if (battmgr->error) 1114 goto out_complete; 1115 } 1116 1117 switch (property) { 1118 case BATT_STATUS: 1119 battmgr->status.status = le32_to_cpu(resp->intval.value); 1120 break; 1121 case BATT_HEALTH: 1122 battmgr->status.health = le32_to_cpu(resp->intval.value); 1123 break; 1124 case BATT_PRESENT: 1125 battmgr->info.present = le32_to_cpu(resp->intval.value); 1126 break; 1127 case BATT_CHG_TYPE: 1128 battmgr->info.charge_type = le32_to_cpu(resp->intval.value); 1129 break; 1130 case BATT_CAPACITY: 1131 battmgr->status.percent = le32_to_cpu(resp->intval.value) / 100; 1132 break; 1133 case BATT_VOLT_OCV: 1134 battmgr->status.voltage_ocv = le32_to_cpu(resp->intval.value); 1135 break; 1136 case BATT_VOLT_NOW: 1137 battmgr->status.voltage_now = le32_to_cpu(resp->intval.value); 1138 break; 1139 case BATT_VOLT_MAX: 1140 battmgr->info.voltage_max = le32_to_cpu(resp->intval.value); 1141 break; 1142 case BATT_CURR_NOW: 1143 battmgr->status.current_now = le32_to_cpu(resp->intval.value); 1144 break; 1145 case BATT_TEMP: 1146 val = le32_to_cpu(resp->intval.value); 1147 battmgr->status.temperature = DIV_ROUND_CLOSEST(val, 10); 1148 break; 1149 case BATT_TECHNOLOGY: 1150 battmgr->info.technology = le32_to_cpu(resp->intval.value); 1151 break; 1152 case BATT_CHG_COUNTER: 1153 battmgr->info.charge_count = le32_to_cpu(resp->intval.value); 1154 break; 1155 case BATT_CYCLE_COUNT: 1156 battmgr->info.cycle_count = le32_to_cpu(resp->intval.value); 1157 break; 1158 case BATT_CHG_FULL_DESIGN: 1159 battmgr->info.design_capacity = le32_to_cpu(resp->intval.value); 1160 break; 1161 case BATT_CHG_FULL: 1162 battmgr->info.last_full_capacity = le32_to_cpu(resp->intval.value); 1163 break; 1164 case BATT_MODEL_NAME: 1165 strscpy(battmgr->info.model_number, resp->strval.model, BATTMGR_STRING_LEN); 1166 break; 1167 case BATT_TTF_AVG: 1168 battmgr->status.charge_time = le32_to_cpu(resp->intval.value); 1169 break; 1170 case BATT_TTE_AVG: 1171 battmgr->status.discharge_time = le32_to_cpu(resp->intval.value); 1172 break; 1173 case BATT_POWER_NOW: 1174 battmgr->status.power_now = le32_to_cpu(resp->intval.value); 1175 break; 1176 default: 1177 dev_warn(battmgr->dev, "unknown property %#x\n", property); 1178 break; 1179 } 1180 break; 1181 case BATTMGR_USB_PROPERTY_GET: 1182 property = le32_to_cpu(resp->intval.property); 1183 if (payload_len != sizeof(resp->intval)) { 1184 dev_warn(battmgr->dev, 1185 "invalid payload length for %#x request: %zd\n", 1186 property, payload_len); 1187 battmgr->error = -ENODATA; 1188 return; 1189 } 1190 1191 battmgr->error = le32_to_cpu(resp->intval.result); 1192 if (battmgr->error) 1193 goto out_complete; 1194 1195 switch (property) { 1196 case USB_ONLINE: 1197 battmgr->usb.online = le32_to_cpu(resp->intval.value); 1198 break; 1199 case USB_VOLT_NOW: 1200 battmgr->usb.voltage_now = le32_to_cpu(resp->intval.value); 1201 break; 1202 case USB_VOLT_MAX: 1203 battmgr->usb.voltage_max = le32_to_cpu(resp->intval.value); 1204 break; 1205 case USB_CURR_NOW: 1206 battmgr->usb.current_now = le32_to_cpu(resp->intval.value); 1207 break; 1208 case USB_CURR_MAX: 1209 battmgr->usb.current_max = le32_to_cpu(resp->intval.value); 1210 break; 1211 case USB_INPUT_CURR_LIMIT: 1212 battmgr->usb.current_limit = le32_to_cpu(resp->intval.value); 1213 break; 1214 case USB_TYPE: 1215 battmgr->usb.usb_type = le32_to_cpu(resp->intval.value); 1216 break; 1217 default: 1218 dev_warn(battmgr->dev, "unknown property %#x\n", property); 1219 break; 1220 } 1221 break; 1222 case BATTMGR_WLS_PROPERTY_GET: 1223 property = le32_to_cpu(resp->intval.property); 1224 if (payload_len != sizeof(resp->intval)) { 1225 dev_warn(battmgr->dev, 1226 "invalid payload length for %#x request: %zd\n", 1227 property, payload_len); 1228 battmgr->error = -ENODATA; 1229 return; 1230 } 1231 1232 battmgr->error = le32_to_cpu(resp->intval.result); 1233 if (battmgr->error) 1234 goto out_complete; 1235 1236 switch (property) { 1237 case WLS_ONLINE: 1238 battmgr->wireless.online = le32_to_cpu(resp->intval.value); 1239 break; 1240 case WLS_VOLT_NOW: 1241 battmgr->wireless.voltage_now = le32_to_cpu(resp->intval.value); 1242 break; 1243 case WLS_VOLT_MAX: 1244 battmgr->wireless.voltage_max = le32_to_cpu(resp->intval.value); 1245 break; 1246 case WLS_CURR_NOW: 1247 battmgr->wireless.current_now = le32_to_cpu(resp->intval.value); 1248 break; 1249 case WLS_CURR_MAX: 1250 battmgr->wireless.current_max = le32_to_cpu(resp->intval.value); 1251 break; 1252 default: 1253 dev_warn(battmgr->dev, "unknown property %#x\n", property); 1254 break; 1255 } 1256 break; 1257 case BATTMGR_REQUEST_NOTIFICATION: 1258 battmgr->error = 0; 1259 break; 1260 default: 1261 dev_warn(battmgr->dev, "unknown message %#x\n", opcode); 1262 break; 1263 } 1264 1265 out_complete: 1266 complete(&battmgr->ack); 1267 } 1268 1269 static void qcom_battmgr_callback(const void *data, size_t len, void *priv) 1270 { 1271 const struct pmic_glink_hdr *hdr = data; 1272 struct qcom_battmgr *battmgr = priv; 1273 unsigned int opcode = le32_to_cpu(hdr->opcode); 1274 1275 if (opcode == BATTMGR_NOTIFICATION) 1276 qcom_battmgr_notification(battmgr, data, len); 1277 else if (battmgr->variant == QCOM_BATTMGR_SC8280XP) 1278 qcom_battmgr_sc8280xp_callback(battmgr, data, len); 1279 else 1280 qcom_battmgr_sm8350_callback(battmgr, data, len); 1281 } 1282 1283 static void qcom_battmgr_enable_worker(struct work_struct *work) 1284 { 1285 struct qcom_battmgr *battmgr = container_of(work, struct qcom_battmgr, enable_work); 1286 struct qcom_battmgr_enable_request req = { 1287 .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR), 1288 .hdr.type = cpu_to_le32(PMIC_GLINK_NOTIFY), 1289 .hdr.opcode = cpu_to_le32(BATTMGR_REQUEST_NOTIFICATION), 1290 }; 1291 int ret; 1292 1293 ret = qcom_battmgr_request(battmgr, &req, sizeof(req)); 1294 if (ret) 1295 dev_err(battmgr->dev, "failed to request power notifications\n"); 1296 } 1297 1298 static void qcom_battmgr_pdr_notify(void *priv, int state) 1299 { 1300 struct qcom_battmgr *battmgr = priv; 1301 1302 if (state == SERVREG_SERVICE_STATE_UP) { 1303 battmgr->service_up = true; 1304 schedule_work(&battmgr->enable_work); 1305 } else { 1306 battmgr->service_up = false; 1307 } 1308 } 1309 1310 static const struct of_device_id qcom_battmgr_of_variants[] = { 1311 { .compatible = "qcom,sc8180x-pmic-glink", .data = (void *)QCOM_BATTMGR_SC8280XP }, 1312 { .compatible = "qcom,sc8280xp-pmic-glink", .data = (void *)QCOM_BATTMGR_SC8280XP }, 1313 { .compatible = "qcom,x1e80100-pmic-glink", .data = (void *)QCOM_BATTMGR_SC8280XP }, 1314 /* Unmatched devices falls back to QCOM_BATTMGR_SM8350 */ 1315 {} 1316 }; 1317 1318 static char *qcom_battmgr_battery[] = { "battery" }; 1319 1320 static int qcom_battmgr_probe(struct auxiliary_device *adev, 1321 const struct auxiliary_device_id *id) 1322 { 1323 struct power_supply_config psy_cfg_supply = {}; 1324 struct power_supply_config psy_cfg = {}; 1325 const struct of_device_id *match; 1326 struct qcom_battmgr *battmgr; 1327 struct device *dev = &adev->dev; 1328 1329 battmgr = devm_kzalloc(dev, sizeof(*battmgr), GFP_KERNEL); 1330 if (!battmgr) 1331 return -ENOMEM; 1332 1333 battmgr->dev = dev; 1334 1335 psy_cfg.drv_data = battmgr; 1336 psy_cfg.of_node = adev->dev.of_node; 1337 1338 psy_cfg_supply.drv_data = battmgr; 1339 psy_cfg_supply.of_node = adev->dev.of_node; 1340 psy_cfg_supply.supplied_to = qcom_battmgr_battery; 1341 psy_cfg_supply.num_supplicants = 1; 1342 1343 INIT_WORK(&battmgr->enable_work, qcom_battmgr_enable_worker); 1344 mutex_init(&battmgr->lock); 1345 init_completion(&battmgr->ack); 1346 1347 match = of_match_device(qcom_battmgr_of_variants, dev->parent); 1348 if (match) 1349 battmgr->variant = (unsigned long)match->data; 1350 else 1351 battmgr->variant = QCOM_BATTMGR_SM8350; 1352 1353 if (battmgr->variant == QCOM_BATTMGR_SC8280XP) { 1354 battmgr->bat_psy = devm_power_supply_register(dev, &sc8280xp_bat_psy_desc, &psy_cfg); 1355 if (IS_ERR(battmgr->bat_psy)) 1356 return dev_err_probe(dev, PTR_ERR(battmgr->bat_psy), 1357 "failed to register battery power supply\n"); 1358 1359 battmgr->ac_psy = devm_power_supply_register(dev, &sc8280xp_ac_psy_desc, &psy_cfg_supply); 1360 if (IS_ERR(battmgr->ac_psy)) 1361 return dev_err_probe(dev, PTR_ERR(battmgr->ac_psy), 1362 "failed to register AC power supply\n"); 1363 1364 battmgr->usb_psy = devm_power_supply_register(dev, &sc8280xp_usb_psy_desc, &psy_cfg_supply); 1365 if (IS_ERR(battmgr->usb_psy)) 1366 return dev_err_probe(dev, PTR_ERR(battmgr->usb_psy), 1367 "failed to register USB power supply\n"); 1368 1369 battmgr->wls_psy = devm_power_supply_register(dev, &sc8280xp_wls_psy_desc, &psy_cfg_supply); 1370 if (IS_ERR(battmgr->wls_psy)) 1371 return dev_err_probe(dev, PTR_ERR(battmgr->wls_psy), 1372 "failed to register wireless charing power supply\n"); 1373 } else { 1374 battmgr->bat_psy = devm_power_supply_register(dev, &sm8350_bat_psy_desc, &psy_cfg); 1375 if (IS_ERR(battmgr->bat_psy)) 1376 return dev_err_probe(dev, PTR_ERR(battmgr->bat_psy), 1377 "failed to register battery power supply\n"); 1378 1379 battmgr->usb_psy = devm_power_supply_register(dev, &sm8350_usb_psy_desc, &psy_cfg_supply); 1380 if (IS_ERR(battmgr->usb_psy)) 1381 return dev_err_probe(dev, PTR_ERR(battmgr->usb_psy), 1382 "failed to register USB power supply\n"); 1383 1384 battmgr->wls_psy = devm_power_supply_register(dev, &sm8350_wls_psy_desc, &psy_cfg_supply); 1385 if (IS_ERR(battmgr->wls_psy)) 1386 return dev_err_probe(dev, PTR_ERR(battmgr->wls_psy), 1387 "failed to register wireless charing power supply\n"); 1388 } 1389 1390 battmgr->client = devm_pmic_glink_register_client(dev, 1391 PMIC_GLINK_OWNER_BATTMGR, 1392 qcom_battmgr_callback, 1393 qcom_battmgr_pdr_notify, 1394 battmgr); 1395 return PTR_ERR_OR_ZERO(battmgr->client); 1396 } 1397 1398 static const struct auxiliary_device_id qcom_battmgr_id_table[] = { 1399 { .name = "pmic_glink.power-supply", }, 1400 {}, 1401 }; 1402 MODULE_DEVICE_TABLE(auxiliary, qcom_battmgr_id_table); 1403 1404 static struct auxiliary_driver qcom_battmgr_driver = { 1405 .name = "pmic_glink_power_supply", 1406 .probe = qcom_battmgr_probe, 1407 .id_table = qcom_battmgr_id_table, 1408 }; 1409 1410 module_auxiliary_driver(qcom_battmgr_driver); 1411 1412 MODULE_DESCRIPTION("Qualcomm PMIC GLINK battery manager driver"); 1413 MODULE_LICENSE("GPL"); 1414