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/property.h>
12 #include <linux/soc/qcom/pdr.h>
13 #include <linux/soc/qcom/pmic_glink.h>
14 #include <linux/math.h>
15 #include <linux/units.h>
16
17 #define BATTMGR_CHEMISTRY_LEN 4
18 #define BATTMGR_STRING_LEN 128
19
20 enum qcom_battmgr_variant {
21 QCOM_BATTMGR_SM8350,
22 QCOM_BATTMGR_SC8280XP,
23 };
24
25 #define BATTMGR_BAT_STATUS 0x1
26
27 #define BATTMGR_REQUEST_NOTIFICATION 0x4
28
29 #define BATTMGR_NOTIFICATION 0x7
30 #define NOTIF_BAT_PROPERTY 0x30
31 #define NOTIF_USB_PROPERTY 0x32
32 #define NOTIF_WLS_PROPERTY 0x34
33 #define NOTIF_BAT_INFO 0x81
34 #define NOTIF_BAT_STATUS 0x80
35
36 #define BATTMGR_BAT_INFO 0x9
37
38 #define BATTMGR_BAT_DISCHARGE_TIME 0xc
39
40 #define BATTMGR_BAT_CHARGE_TIME 0xd
41
42 #define BATTMGR_BAT_PROPERTY_GET 0x30
43 #define BATTMGR_BAT_PROPERTY_SET 0x31
44 #define BATT_STATUS 0
45 #define BATT_HEALTH 1
46 #define BATT_PRESENT 2
47 #define BATT_CHG_TYPE 3
48 #define BATT_CAPACITY 4
49 #define BATT_SOH 5
50 #define BATT_VOLT_OCV 6
51 #define BATT_VOLT_NOW 7
52 #define BATT_VOLT_MAX 8
53 #define BATT_CURR_NOW 9
54 #define BATT_CHG_CTRL_LIM 10
55 #define BATT_CHG_CTRL_LIM_MAX 11
56 #define BATT_TEMP 12
57 #define BATT_TECHNOLOGY 13
58 #define BATT_CHG_COUNTER 14
59 #define BATT_CYCLE_COUNT 15
60 #define BATT_CHG_FULL_DESIGN 16
61 #define BATT_CHG_FULL 17
62 #define BATT_MODEL_NAME 18
63 #define BATT_TTF_AVG 19
64 #define BATT_TTE_AVG 20
65 #define BATT_RESISTANCE 21
66 #define BATT_POWER_NOW 22
67 #define BATT_POWER_AVG 23
68
69 #define BATTMGR_USB_PROPERTY_GET 0x32
70 #define BATTMGR_USB_PROPERTY_SET 0x33
71 #define USB_ONLINE 0
72 #define USB_VOLT_NOW 1
73 #define USB_VOLT_MAX 2
74 #define USB_CURR_NOW 3
75 #define USB_CURR_MAX 4
76 #define USB_INPUT_CURR_LIMIT 5
77 #define USB_TYPE 6
78 #define USB_ADAP_TYPE 7
79 #define USB_MOISTURE_DET_EN 8
80 #define USB_MOISTURE_DET_STS 9
81
82 #define BATTMGR_WLS_PROPERTY_GET 0x34
83 #define BATTMGR_WLS_PROPERTY_SET 0x35
84 #define WLS_ONLINE 0
85 #define WLS_VOLT_NOW 1
86 #define WLS_VOLT_MAX 2
87 #define WLS_CURR_NOW 3
88 #define WLS_CURR_MAX 4
89 #define WLS_TYPE 5
90 #define WLS_BOOST_EN 6
91
92 struct qcom_battmgr_enable_request {
93 struct pmic_glink_hdr hdr;
94 __le32 battery_id;
95 __le32 power_state;
96 __le32 low_capacity;
97 __le32 high_capacity;
98 };
99
100 struct qcom_battmgr_property_request {
101 struct pmic_glink_hdr hdr;
102 __le32 battery;
103 __le32 property;
104 __le32 value;
105 };
106
107 struct qcom_battmgr_update_request {
108 struct pmic_glink_hdr hdr;
109 __le32 battery_id;
110 };
111
112 struct qcom_battmgr_charge_time_request {
113 struct pmic_glink_hdr hdr;
114 __le32 battery_id;
115 __le32 percent;
116 __le32 reserved;
117 };
118
119 struct qcom_battmgr_discharge_time_request {
120 struct pmic_glink_hdr hdr;
121 __le32 battery_id;
122 __le32 rate; /* 0 for current rate */
123 __le32 reserved;
124 };
125
126 struct qcom_battmgr_message {
127 struct pmic_glink_hdr hdr;
128 union {
129 struct {
130 __le32 property;
131 __le32 value;
132 __le32 result;
133 } intval;
134 struct {
135 __le32 property;
136 char model[BATTMGR_STRING_LEN];
137 } strval;
138 struct {
139 /*
140 * 0: mWh
141 * 1: mAh
142 */
143 __le32 power_unit;
144 __le32 design_capacity;
145 __le32 last_full_capacity;
146 /*
147 * 0 nonrechargable
148 * 1 rechargable
149 */
150 __le32 battery_tech;
151 __le32 design_voltage; /* mV */
152 __le32 capacity_low;
153 __le32 capacity_warning;
154 __le32 cycle_count;
155 /* thousandth of percent */
156 __le32 accuracy;
157 __le32 max_sample_time_ms;
158 __le32 min_sample_time_ms;
159 __le32 max_average_interval_ms;
160 __le32 min_average_interval_ms;
161 /* granularity between low and warning */
162 __le32 capacity_granularity1;
163 /* granularity between warning and full */
164 __le32 capacity_granularity2;
165 /*
166 * 0: no
167 * 1: cold
168 * 2: hot
169 */
170 __le32 swappable;
171 __le32 capabilities;
172 char model_number[BATTMGR_STRING_LEN];
173 char serial_number[BATTMGR_STRING_LEN];
174 char battery_type[BATTMGR_STRING_LEN];
175 char oem_info[BATTMGR_STRING_LEN];
176 char battery_chemistry[BATTMGR_CHEMISTRY_LEN];
177 char uid[BATTMGR_STRING_LEN];
178 __le32 critical_bias;
179 u8 day;
180 u8 month;
181 __le16 year;
182 __le32 battery_id;
183 } info;
184 struct {
185 /*
186 * BIT(0) discharging
187 * BIT(1) charging
188 * BIT(2) critical low
189 */
190 __le32 battery_state;
191 /* mWh or mAh, based on info->power_unit */
192 __le32 capacity;
193 __le32 rate;
194 /* mv */
195 __le32 battery_voltage;
196 /*
197 * BIT(0) power online
198 * BIT(1) discharging
199 * BIT(2) charging
200 * BIT(3) battery critical
201 */
202 __le32 power_state;
203 /*
204 * 1: AC
205 * 2: USB
206 * 3: Wireless
207 */
208 __le32 charging_source;
209 __le32 temperature;
210 } status;
211 __le32 time;
212 __le32 notification;
213 };
214 };
215
216 #define BATTMGR_CHARGING_SOURCE_AC 1
217 #define BATTMGR_CHARGING_SOURCE_USB 2
218 #define BATTMGR_CHARGING_SOURCE_WIRELESS 3
219
220 enum qcom_battmgr_unit {
221 QCOM_BATTMGR_UNIT_mWh = 0,
222 QCOM_BATTMGR_UNIT_mAh = 1
223 };
224
225 struct qcom_battmgr_info {
226 bool valid;
227
228 bool present;
229 unsigned int charge_type;
230 unsigned int design_capacity;
231 unsigned int last_full_capacity;
232 unsigned int voltage_max_design;
233 unsigned int voltage_max;
234 unsigned int capacity_low;
235 unsigned int capacity_warning;
236 unsigned int cycle_count;
237 unsigned int charge_count;
238 char model_number[BATTMGR_STRING_LEN];
239 char serial_number[BATTMGR_STRING_LEN];
240 char oem_info[BATTMGR_STRING_LEN];
241 unsigned char technology;
242 unsigned char day;
243 unsigned char month;
244 unsigned short year;
245 };
246
247 struct qcom_battmgr_status {
248 unsigned int status;
249 unsigned int health;
250 unsigned int capacity;
251 unsigned int percent;
252 int current_now;
253 int power_now;
254 unsigned int voltage_now;
255 unsigned int voltage_ocv;
256 unsigned int temperature;
257
258 unsigned int discharge_time;
259 unsigned int charge_time;
260 };
261
262 struct qcom_battmgr_ac {
263 bool online;
264 };
265
266 struct qcom_battmgr_usb {
267 bool online;
268 unsigned int voltage_now;
269 unsigned int voltage_max;
270 unsigned int current_now;
271 unsigned int current_max;
272 unsigned int current_limit;
273 unsigned int usb_type;
274 };
275
276 struct qcom_battmgr_wireless {
277 bool online;
278 unsigned int voltage_now;
279 unsigned int voltage_max;
280 unsigned int current_now;
281 unsigned int current_max;
282 };
283
284 struct qcom_battmgr {
285 struct device *dev;
286 struct pmic_glink_client *client;
287
288 enum qcom_battmgr_variant variant;
289
290 struct power_supply *ac_psy;
291 struct power_supply *bat_psy;
292 struct power_supply *usb_psy;
293 struct power_supply *wls_psy;
294
295 enum qcom_battmgr_unit unit;
296
297 int error;
298 struct completion ack;
299
300 bool service_up;
301
302 struct qcom_battmgr_info info;
303 struct qcom_battmgr_status status;
304 struct qcom_battmgr_ac ac;
305 struct qcom_battmgr_usb usb;
306 struct qcom_battmgr_wireless wireless;
307
308 struct work_struct enable_work;
309
310 /*
311 * @lock is used to prevent concurrent power supply requests to the
312 * firmware, as it then stops responding.
313 */
314 struct mutex lock;
315 };
316
qcom_battmgr_request(struct qcom_battmgr * battmgr,void * data,size_t len)317 static int qcom_battmgr_request(struct qcom_battmgr *battmgr, void *data, size_t len)
318 {
319 unsigned long left;
320 int ret;
321
322 reinit_completion(&battmgr->ack);
323
324 battmgr->error = 0;
325
326 ret = pmic_glink_send(battmgr->client, data, len);
327 if (ret < 0)
328 return ret;
329
330 left = wait_for_completion_timeout(&battmgr->ack, HZ);
331 if (!left)
332 return -ETIMEDOUT;
333
334 return battmgr->error;
335 }
336
qcom_battmgr_request_property(struct qcom_battmgr * battmgr,int opcode,int property,u32 value)337 static int qcom_battmgr_request_property(struct qcom_battmgr *battmgr, int opcode,
338 int property, u32 value)
339 {
340 struct qcom_battmgr_property_request request = {
341 .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR),
342 .hdr.type = cpu_to_le32(PMIC_GLINK_REQ_RESP),
343 .hdr.opcode = cpu_to_le32(opcode),
344 .battery = cpu_to_le32(0),
345 .property = cpu_to_le32(property),
346 .value = cpu_to_le32(value),
347 };
348
349 return qcom_battmgr_request(battmgr, &request, sizeof(request));
350 }
351
qcom_battmgr_update_status(struct qcom_battmgr * battmgr)352 static int qcom_battmgr_update_status(struct qcom_battmgr *battmgr)
353 {
354 struct qcom_battmgr_update_request request = {
355 .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR),
356 .hdr.type = cpu_to_le32(PMIC_GLINK_REQ_RESP),
357 .hdr.opcode = cpu_to_le32(BATTMGR_BAT_STATUS),
358 .battery_id = cpu_to_le32(0),
359 };
360
361 return qcom_battmgr_request(battmgr, &request, sizeof(request));
362 }
363
qcom_battmgr_update_info(struct qcom_battmgr * battmgr)364 static int qcom_battmgr_update_info(struct qcom_battmgr *battmgr)
365 {
366 struct qcom_battmgr_update_request request = {
367 .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR),
368 .hdr.type = cpu_to_le32(PMIC_GLINK_REQ_RESP),
369 .hdr.opcode = cpu_to_le32(BATTMGR_BAT_INFO),
370 .battery_id = cpu_to_le32(0),
371 };
372
373 return qcom_battmgr_request(battmgr, &request, sizeof(request));
374 }
375
qcom_battmgr_update_charge_time(struct qcom_battmgr * battmgr)376 static int qcom_battmgr_update_charge_time(struct qcom_battmgr *battmgr)
377 {
378 struct qcom_battmgr_charge_time_request request = {
379 .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR),
380 .hdr.type = cpu_to_le32(PMIC_GLINK_REQ_RESP),
381 .hdr.opcode = cpu_to_le32(BATTMGR_BAT_CHARGE_TIME),
382 .battery_id = cpu_to_le32(0),
383 .percent = cpu_to_le32(100),
384 };
385
386 return qcom_battmgr_request(battmgr, &request, sizeof(request));
387 }
388
qcom_battmgr_update_discharge_time(struct qcom_battmgr * battmgr)389 static int qcom_battmgr_update_discharge_time(struct qcom_battmgr *battmgr)
390 {
391 struct qcom_battmgr_discharge_time_request request = {
392 .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR),
393 .hdr.type = cpu_to_le32(PMIC_GLINK_REQ_RESP),
394 .hdr.opcode = cpu_to_le32(BATTMGR_BAT_DISCHARGE_TIME),
395 .battery_id = cpu_to_le32(0),
396 .rate = cpu_to_le32(0),
397 };
398
399 return qcom_battmgr_request(battmgr, &request, sizeof(request));
400 }
401
402 static const u8 sm8350_bat_prop_map[] = {
403 [POWER_SUPPLY_PROP_STATUS] = BATT_STATUS,
404 [POWER_SUPPLY_PROP_HEALTH] = BATT_HEALTH,
405 [POWER_SUPPLY_PROP_PRESENT] = BATT_PRESENT,
406 [POWER_SUPPLY_PROP_CHARGE_TYPE] = BATT_CHG_TYPE,
407 [POWER_SUPPLY_PROP_CAPACITY] = BATT_CAPACITY,
408 [POWER_SUPPLY_PROP_VOLTAGE_OCV] = BATT_VOLT_OCV,
409 [POWER_SUPPLY_PROP_VOLTAGE_NOW] = BATT_VOLT_NOW,
410 [POWER_SUPPLY_PROP_VOLTAGE_MAX] = BATT_VOLT_MAX,
411 [POWER_SUPPLY_PROP_CURRENT_NOW] = BATT_CURR_NOW,
412 [POWER_SUPPLY_PROP_TEMP] = BATT_TEMP,
413 [POWER_SUPPLY_PROP_TECHNOLOGY] = BATT_TECHNOLOGY,
414 [POWER_SUPPLY_PROP_CHARGE_COUNTER] = BATT_CHG_COUNTER,
415 [POWER_SUPPLY_PROP_CYCLE_COUNT] = BATT_CYCLE_COUNT,
416 [POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN] = BATT_CHG_FULL_DESIGN,
417 [POWER_SUPPLY_PROP_CHARGE_FULL] = BATT_CHG_FULL,
418 [POWER_SUPPLY_PROP_MODEL_NAME] = BATT_MODEL_NAME,
419 [POWER_SUPPLY_PROP_TIME_TO_FULL_AVG] = BATT_TTF_AVG,
420 [POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG] = BATT_TTE_AVG,
421 [POWER_SUPPLY_PROP_POWER_NOW] = BATT_POWER_NOW,
422 };
423
qcom_battmgr_bat_sm8350_update(struct qcom_battmgr * battmgr,enum power_supply_property psp)424 static int qcom_battmgr_bat_sm8350_update(struct qcom_battmgr *battmgr,
425 enum power_supply_property psp)
426 {
427 unsigned int prop;
428 int ret;
429
430 if (psp >= ARRAY_SIZE(sm8350_bat_prop_map))
431 return -EINVAL;
432
433 prop = sm8350_bat_prop_map[psp];
434
435 mutex_lock(&battmgr->lock);
436 ret = qcom_battmgr_request_property(battmgr, BATTMGR_BAT_PROPERTY_GET, prop, 0);
437 mutex_unlock(&battmgr->lock);
438
439 return ret;
440 }
441
qcom_battmgr_bat_sc8280xp_update(struct qcom_battmgr * battmgr,enum power_supply_property psp)442 static int qcom_battmgr_bat_sc8280xp_update(struct qcom_battmgr *battmgr,
443 enum power_supply_property psp)
444 {
445 int ret;
446
447 mutex_lock(&battmgr->lock);
448
449 if (!battmgr->info.valid) {
450 ret = qcom_battmgr_update_info(battmgr);
451 if (ret < 0)
452 goto out_unlock;
453 battmgr->info.valid = true;
454 }
455
456 ret = qcom_battmgr_update_status(battmgr);
457 if (ret < 0)
458 goto out_unlock;
459
460 if (psp == POWER_SUPPLY_PROP_TIME_TO_FULL_AVG) {
461 ret = qcom_battmgr_update_charge_time(battmgr);
462 if (ret < 0) {
463 ret = -ENODATA;
464 goto out_unlock;
465 }
466 }
467
468 if (psp == POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG) {
469 ret = qcom_battmgr_update_discharge_time(battmgr);
470 if (ret < 0) {
471 ret = -ENODATA;
472 goto out_unlock;
473 }
474 }
475
476 out_unlock:
477 mutex_unlock(&battmgr->lock);
478 return ret;
479 }
480
qcom_battmgr_bat_get_property(struct power_supply * psy,enum power_supply_property psp,union power_supply_propval * val)481 static int qcom_battmgr_bat_get_property(struct power_supply *psy,
482 enum power_supply_property psp,
483 union power_supply_propval *val)
484 {
485 struct qcom_battmgr *battmgr = power_supply_get_drvdata(psy);
486 enum qcom_battmgr_unit unit = battmgr->unit;
487 int ret;
488
489 if (!battmgr->service_up)
490 return -EAGAIN;
491
492 if (battmgr->variant == QCOM_BATTMGR_SC8280XP)
493 ret = qcom_battmgr_bat_sc8280xp_update(battmgr, psp);
494 else
495 ret = qcom_battmgr_bat_sm8350_update(battmgr, psp);
496 if (ret < 0)
497 return ret;
498
499 switch (psp) {
500 case POWER_SUPPLY_PROP_STATUS:
501 val->intval = battmgr->status.status;
502 break;
503 case POWER_SUPPLY_PROP_CHARGE_TYPE:
504 val->intval = battmgr->info.charge_type;
505 break;
506 case POWER_SUPPLY_PROP_HEALTH:
507 val->intval = battmgr->status.health;
508 break;
509 case POWER_SUPPLY_PROP_PRESENT:
510 val->intval = battmgr->info.present;
511 break;
512 case POWER_SUPPLY_PROP_TECHNOLOGY:
513 val->intval = battmgr->info.technology;
514 break;
515 case POWER_SUPPLY_PROP_CYCLE_COUNT:
516 val->intval = battmgr->info.cycle_count;
517 break;
518 case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
519 val->intval = battmgr->info.voltage_max_design;
520 break;
521 case POWER_SUPPLY_PROP_VOLTAGE_MAX:
522 val->intval = battmgr->info.voltage_max;
523 break;
524 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
525 val->intval = battmgr->status.voltage_now;
526 break;
527 case POWER_SUPPLY_PROP_VOLTAGE_OCV:
528 val->intval = battmgr->status.voltage_ocv;
529 break;
530 case POWER_SUPPLY_PROP_CURRENT_NOW:
531 val->intval = battmgr->status.current_now;
532 break;
533 case POWER_SUPPLY_PROP_POWER_NOW:
534 val->intval = battmgr->status.power_now;
535 break;
536 case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
537 if (unit != QCOM_BATTMGR_UNIT_mAh)
538 return -ENODATA;
539 val->intval = battmgr->info.design_capacity;
540 break;
541 case POWER_SUPPLY_PROP_CHARGE_FULL:
542 if (unit != QCOM_BATTMGR_UNIT_mAh)
543 return -ENODATA;
544 val->intval = battmgr->info.last_full_capacity;
545 break;
546 case POWER_SUPPLY_PROP_CHARGE_EMPTY:
547 if (unit != QCOM_BATTMGR_UNIT_mAh)
548 return -ENODATA;
549 val->intval = battmgr->info.capacity_low;
550 break;
551 case POWER_SUPPLY_PROP_CHARGE_NOW:
552 if (unit != QCOM_BATTMGR_UNIT_mAh)
553 return -ENODATA;
554 val->intval = battmgr->status.capacity;
555 break;
556 case POWER_SUPPLY_PROP_CHARGE_COUNTER:
557 val->intval = battmgr->info.charge_count;
558 break;
559 case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
560 if (unit != QCOM_BATTMGR_UNIT_mWh)
561 return -ENODATA;
562 val->intval = battmgr->info.design_capacity;
563 break;
564 case POWER_SUPPLY_PROP_ENERGY_FULL:
565 if (unit != QCOM_BATTMGR_UNIT_mWh)
566 return -ENODATA;
567 val->intval = battmgr->info.last_full_capacity;
568 break;
569 case POWER_SUPPLY_PROP_ENERGY_EMPTY:
570 if (unit != QCOM_BATTMGR_UNIT_mWh)
571 return -ENODATA;
572 val->intval = battmgr->info.capacity_low;
573 break;
574 case POWER_SUPPLY_PROP_ENERGY_NOW:
575 if (unit != QCOM_BATTMGR_UNIT_mWh)
576 return -ENODATA;
577 val->intval = battmgr->status.capacity;
578 break;
579 case POWER_SUPPLY_PROP_CAPACITY:
580 val->intval = battmgr->status.percent;
581 break;
582 case POWER_SUPPLY_PROP_TEMP:
583 val->intval = battmgr->status.temperature;
584 break;
585 case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:
586 val->intval = battmgr->status.discharge_time;
587 break;
588 case POWER_SUPPLY_PROP_TIME_TO_FULL_AVG:
589 val->intval = battmgr->status.charge_time;
590 break;
591 case POWER_SUPPLY_PROP_MANUFACTURE_YEAR:
592 val->intval = battmgr->info.year;
593 break;
594 case POWER_SUPPLY_PROP_MANUFACTURE_MONTH:
595 val->intval = battmgr->info.month;
596 break;
597 case POWER_SUPPLY_PROP_MANUFACTURE_DAY:
598 val->intval = battmgr->info.day;
599 break;
600 case POWER_SUPPLY_PROP_MODEL_NAME:
601 val->strval = battmgr->info.model_number;
602 break;
603 case POWER_SUPPLY_PROP_MANUFACTURER:
604 val->strval = battmgr->info.oem_info;
605 break;
606 case POWER_SUPPLY_PROP_SERIAL_NUMBER:
607 val->strval = battmgr->info.serial_number;
608 break;
609 default:
610 return -EINVAL;
611 }
612
613 return 0;
614 }
615
616 static const enum power_supply_property sc8280xp_bat_props[] = {
617 POWER_SUPPLY_PROP_STATUS,
618 POWER_SUPPLY_PROP_PRESENT,
619 POWER_SUPPLY_PROP_TECHNOLOGY,
620 POWER_SUPPLY_PROP_CYCLE_COUNT,
621 POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
622 POWER_SUPPLY_PROP_VOLTAGE_NOW,
623 POWER_SUPPLY_PROP_POWER_NOW,
624 POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
625 POWER_SUPPLY_PROP_CHARGE_FULL,
626 POWER_SUPPLY_PROP_CHARGE_EMPTY,
627 POWER_SUPPLY_PROP_CHARGE_NOW,
628 POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN,
629 POWER_SUPPLY_PROP_ENERGY_FULL,
630 POWER_SUPPLY_PROP_ENERGY_EMPTY,
631 POWER_SUPPLY_PROP_ENERGY_NOW,
632 POWER_SUPPLY_PROP_TEMP,
633 POWER_SUPPLY_PROP_MANUFACTURE_YEAR,
634 POWER_SUPPLY_PROP_MANUFACTURE_MONTH,
635 POWER_SUPPLY_PROP_MANUFACTURE_DAY,
636 POWER_SUPPLY_PROP_MODEL_NAME,
637 POWER_SUPPLY_PROP_MANUFACTURER,
638 POWER_SUPPLY_PROP_SERIAL_NUMBER,
639 };
640
641 static const struct power_supply_desc sc8280xp_bat_psy_desc = {
642 .name = "qcom-battmgr-bat",
643 .type = POWER_SUPPLY_TYPE_BATTERY,
644 .properties = sc8280xp_bat_props,
645 .num_properties = ARRAY_SIZE(sc8280xp_bat_props),
646 .get_property = qcom_battmgr_bat_get_property,
647 };
648
649 static const enum power_supply_property sm8350_bat_props[] = {
650 POWER_SUPPLY_PROP_STATUS,
651 POWER_SUPPLY_PROP_HEALTH,
652 POWER_SUPPLY_PROP_PRESENT,
653 POWER_SUPPLY_PROP_CHARGE_TYPE,
654 POWER_SUPPLY_PROP_CAPACITY,
655 POWER_SUPPLY_PROP_VOLTAGE_OCV,
656 POWER_SUPPLY_PROP_VOLTAGE_NOW,
657 POWER_SUPPLY_PROP_VOLTAGE_MAX,
658 POWER_SUPPLY_PROP_CURRENT_NOW,
659 POWER_SUPPLY_PROP_TEMP,
660 POWER_SUPPLY_PROP_TECHNOLOGY,
661 POWER_SUPPLY_PROP_CHARGE_COUNTER,
662 POWER_SUPPLY_PROP_CYCLE_COUNT,
663 POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
664 POWER_SUPPLY_PROP_CHARGE_FULL,
665 POWER_SUPPLY_PROP_MODEL_NAME,
666 POWER_SUPPLY_PROP_TIME_TO_FULL_AVG,
667 POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
668 POWER_SUPPLY_PROP_POWER_NOW,
669 };
670
671 static const struct power_supply_desc sm8350_bat_psy_desc = {
672 .name = "qcom-battmgr-bat",
673 .type = POWER_SUPPLY_TYPE_BATTERY,
674 .properties = sm8350_bat_props,
675 .num_properties = ARRAY_SIZE(sm8350_bat_props),
676 .get_property = qcom_battmgr_bat_get_property,
677 };
678
qcom_battmgr_ac_get_property(struct power_supply * psy,enum power_supply_property psp,union power_supply_propval * val)679 static int qcom_battmgr_ac_get_property(struct power_supply *psy,
680 enum power_supply_property psp,
681 union power_supply_propval *val)
682 {
683 struct qcom_battmgr *battmgr = power_supply_get_drvdata(psy);
684 int ret;
685
686 if (!battmgr->service_up)
687 return -EAGAIN;
688
689 ret = qcom_battmgr_bat_sc8280xp_update(battmgr, psp);
690 if (ret)
691 return ret;
692
693 switch (psp) {
694 case POWER_SUPPLY_PROP_ONLINE:
695 val->intval = battmgr->ac.online;
696 break;
697 default:
698 return -EINVAL;
699 }
700
701 return 0;
702 }
703
704 static const enum power_supply_property sc8280xp_ac_props[] = {
705 POWER_SUPPLY_PROP_ONLINE,
706 };
707
708 static const struct power_supply_desc sc8280xp_ac_psy_desc = {
709 .name = "qcom-battmgr-ac",
710 .type = POWER_SUPPLY_TYPE_MAINS,
711 .properties = sc8280xp_ac_props,
712 .num_properties = ARRAY_SIZE(sc8280xp_ac_props),
713 .get_property = qcom_battmgr_ac_get_property,
714 };
715
716 static const u8 sm8350_usb_prop_map[] = {
717 [POWER_SUPPLY_PROP_ONLINE] = USB_ONLINE,
718 [POWER_SUPPLY_PROP_VOLTAGE_NOW] = USB_VOLT_NOW,
719 [POWER_SUPPLY_PROP_VOLTAGE_MAX] = USB_VOLT_MAX,
720 [POWER_SUPPLY_PROP_CURRENT_NOW] = USB_CURR_NOW,
721 [POWER_SUPPLY_PROP_CURRENT_MAX] = USB_CURR_MAX,
722 [POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT] = USB_INPUT_CURR_LIMIT,
723 [POWER_SUPPLY_PROP_USB_TYPE] = USB_TYPE,
724 };
725
qcom_battmgr_usb_sm8350_update(struct qcom_battmgr * battmgr,enum power_supply_property psp)726 static int qcom_battmgr_usb_sm8350_update(struct qcom_battmgr *battmgr,
727 enum power_supply_property psp)
728 {
729 unsigned int prop;
730 int ret;
731
732 if (psp >= ARRAY_SIZE(sm8350_usb_prop_map))
733 return -EINVAL;
734
735 prop = sm8350_usb_prop_map[psp];
736
737 mutex_lock(&battmgr->lock);
738 ret = qcom_battmgr_request_property(battmgr, BATTMGR_USB_PROPERTY_GET, prop, 0);
739 mutex_unlock(&battmgr->lock);
740
741 return ret;
742 }
743
qcom_battmgr_usb_get_property(struct power_supply * psy,enum power_supply_property psp,union power_supply_propval * val)744 static int qcom_battmgr_usb_get_property(struct power_supply *psy,
745 enum power_supply_property psp,
746 union power_supply_propval *val)
747 {
748 struct qcom_battmgr *battmgr = power_supply_get_drvdata(psy);
749 int ret;
750
751 if (!battmgr->service_up)
752 return -EAGAIN;
753
754 if (battmgr->variant == QCOM_BATTMGR_SC8280XP)
755 ret = qcom_battmgr_bat_sc8280xp_update(battmgr, psp);
756 else
757 ret = qcom_battmgr_usb_sm8350_update(battmgr, psp);
758 if (ret)
759 return ret;
760
761 switch (psp) {
762 case POWER_SUPPLY_PROP_ONLINE:
763 val->intval = battmgr->usb.online;
764 break;
765 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
766 val->intval = battmgr->usb.voltage_now;
767 break;
768 case POWER_SUPPLY_PROP_VOLTAGE_MAX:
769 val->intval = battmgr->usb.voltage_max;
770 break;
771 case POWER_SUPPLY_PROP_CURRENT_NOW:
772 val->intval = battmgr->usb.current_now;
773 break;
774 case POWER_SUPPLY_PROP_CURRENT_MAX:
775 val->intval = battmgr->usb.current_max;
776 break;
777 case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
778 val->intval = battmgr->usb.current_limit;
779 break;
780 case POWER_SUPPLY_PROP_USB_TYPE:
781 val->intval = battmgr->usb.usb_type;
782 break;
783 default:
784 return -EINVAL;
785 }
786
787 return 0;
788 }
789
790 static const enum power_supply_property sc8280xp_usb_props[] = {
791 POWER_SUPPLY_PROP_ONLINE,
792 };
793
794 static const struct power_supply_desc sc8280xp_usb_psy_desc = {
795 .name = "qcom-battmgr-usb",
796 .type = POWER_SUPPLY_TYPE_USB,
797 .properties = sc8280xp_usb_props,
798 .num_properties = ARRAY_SIZE(sc8280xp_usb_props),
799 .get_property = qcom_battmgr_usb_get_property,
800 .usb_types = BIT(POWER_SUPPLY_USB_TYPE_UNKNOWN) |
801 BIT(POWER_SUPPLY_USB_TYPE_SDP) |
802 BIT(POWER_SUPPLY_USB_TYPE_DCP) |
803 BIT(POWER_SUPPLY_USB_TYPE_CDP) |
804 BIT(POWER_SUPPLY_USB_TYPE_ACA) |
805 BIT(POWER_SUPPLY_USB_TYPE_C) |
806 BIT(POWER_SUPPLY_USB_TYPE_PD) |
807 BIT(POWER_SUPPLY_USB_TYPE_PD_DRP) |
808 BIT(POWER_SUPPLY_USB_TYPE_PD_PPS) |
809 BIT(POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID),
810 };
811
812 static const enum power_supply_property sm8350_usb_props[] = {
813 POWER_SUPPLY_PROP_ONLINE,
814 POWER_SUPPLY_PROP_VOLTAGE_NOW,
815 POWER_SUPPLY_PROP_VOLTAGE_MAX,
816 POWER_SUPPLY_PROP_CURRENT_NOW,
817 POWER_SUPPLY_PROP_CURRENT_MAX,
818 POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
819 POWER_SUPPLY_PROP_USB_TYPE,
820 };
821
822 static const struct power_supply_desc sm8350_usb_psy_desc = {
823 .name = "qcom-battmgr-usb",
824 .type = POWER_SUPPLY_TYPE_USB,
825 .properties = sm8350_usb_props,
826 .num_properties = ARRAY_SIZE(sm8350_usb_props),
827 .get_property = qcom_battmgr_usb_get_property,
828 .usb_types = BIT(POWER_SUPPLY_USB_TYPE_UNKNOWN) |
829 BIT(POWER_SUPPLY_USB_TYPE_SDP) |
830 BIT(POWER_SUPPLY_USB_TYPE_DCP) |
831 BIT(POWER_SUPPLY_USB_TYPE_CDP) |
832 BIT(POWER_SUPPLY_USB_TYPE_ACA) |
833 BIT(POWER_SUPPLY_USB_TYPE_C) |
834 BIT(POWER_SUPPLY_USB_TYPE_PD) |
835 BIT(POWER_SUPPLY_USB_TYPE_PD_DRP) |
836 BIT(POWER_SUPPLY_USB_TYPE_PD_PPS) |
837 BIT(POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID),
838 };
839
840 static const u8 sm8350_wls_prop_map[] = {
841 [POWER_SUPPLY_PROP_ONLINE] = WLS_ONLINE,
842 [POWER_SUPPLY_PROP_VOLTAGE_NOW] = WLS_VOLT_NOW,
843 [POWER_SUPPLY_PROP_VOLTAGE_MAX] = WLS_VOLT_MAX,
844 [POWER_SUPPLY_PROP_CURRENT_NOW] = WLS_CURR_NOW,
845 [POWER_SUPPLY_PROP_CURRENT_MAX] = WLS_CURR_MAX,
846 };
847
qcom_battmgr_wls_sm8350_update(struct qcom_battmgr * battmgr,enum power_supply_property psp)848 static int qcom_battmgr_wls_sm8350_update(struct qcom_battmgr *battmgr,
849 enum power_supply_property psp)
850 {
851 unsigned int prop;
852 int ret;
853
854 if (psp >= ARRAY_SIZE(sm8350_wls_prop_map))
855 return -EINVAL;
856
857 prop = sm8350_wls_prop_map[psp];
858
859 mutex_lock(&battmgr->lock);
860 ret = qcom_battmgr_request_property(battmgr, BATTMGR_WLS_PROPERTY_GET, prop, 0);
861 mutex_unlock(&battmgr->lock);
862
863 return ret;
864 }
865
qcom_battmgr_wls_get_property(struct power_supply * psy,enum power_supply_property psp,union power_supply_propval * val)866 static int qcom_battmgr_wls_get_property(struct power_supply *psy,
867 enum power_supply_property psp,
868 union power_supply_propval *val)
869 {
870 struct qcom_battmgr *battmgr = power_supply_get_drvdata(psy);
871 int ret;
872
873 if (!battmgr->service_up)
874 return -EAGAIN;
875
876 if (battmgr->variant == QCOM_BATTMGR_SC8280XP)
877 ret = qcom_battmgr_bat_sc8280xp_update(battmgr, psp);
878 else
879 ret = qcom_battmgr_wls_sm8350_update(battmgr, psp);
880 if (ret < 0)
881 return ret;
882
883 switch (psp) {
884 case POWER_SUPPLY_PROP_ONLINE:
885 val->intval = battmgr->wireless.online;
886 break;
887 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
888 val->intval = battmgr->wireless.voltage_now;
889 break;
890 case POWER_SUPPLY_PROP_VOLTAGE_MAX:
891 val->intval = battmgr->wireless.voltage_max;
892 break;
893 case POWER_SUPPLY_PROP_CURRENT_NOW:
894 val->intval = battmgr->wireless.current_now;
895 break;
896 case POWER_SUPPLY_PROP_CURRENT_MAX:
897 val->intval = battmgr->wireless.current_max;
898 break;
899 default:
900 return -EINVAL;
901 }
902
903 return 0;
904 }
905
906 static const enum power_supply_property sc8280xp_wls_props[] = {
907 POWER_SUPPLY_PROP_ONLINE,
908 };
909
910 static const struct power_supply_desc sc8280xp_wls_psy_desc = {
911 .name = "qcom-battmgr-wls",
912 .type = POWER_SUPPLY_TYPE_WIRELESS,
913 .properties = sc8280xp_wls_props,
914 .num_properties = ARRAY_SIZE(sc8280xp_wls_props),
915 .get_property = qcom_battmgr_wls_get_property,
916 };
917
918 static const enum power_supply_property sm8350_wls_props[] = {
919 POWER_SUPPLY_PROP_ONLINE,
920 POWER_SUPPLY_PROP_VOLTAGE_NOW,
921 POWER_SUPPLY_PROP_VOLTAGE_MAX,
922 POWER_SUPPLY_PROP_CURRENT_NOW,
923 POWER_SUPPLY_PROP_CURRENT_MAX,
924 };
925
926 static const struct power_supply_desc sm8350_wls_psy_desc = {
927 .name = "qcom-battmgr-wls",
928 .type = POWER_SUPPLY_TYPE_WIRELESS,
929 .properties = sm8350_wls_props,
930 .num_properties = ARRAY_SIZE(sm8350_wls_props),
931 .get_property = qcom_battmgr_wls_get_property,
932 };
933
qcom_battmgr_notification(struct qcom_battmgr * battmgr,const struct qcom_battmgr_message * msg,int len)934 static void qcom_battmgr_notification(struct qcom_battmgr *battmgr,
935 const struct qcom_battmgr_message *msg,
936 int len)
937 {
938 size_t payload_len = len - sizeof(struct pmic_glink_hdr);
939 unsigned int notification;
940
941 if (payload_len != sizeof(msg->notification)) {
942 dev_warn(battmgr->dev, "ignoring notification with invalid length\n");
943 return;
944 }
945
946 notification = le32_to_cpu(msg->notification);
947 switch (notification) {
948 case NOTIF_BAT_INFO:
949 battmgr->info.valid = false;
950 fallthrough;
951 case NOTIF_BAT_STATUS:
952 case NOTIF_BAT_PROPERTY:
953 power_supply_changed(battmgr->bat_psy);
954 break;
955 case NOTIF_USB_PROPERTY:
956 power_supply_changed(battmgr->usb_psy);
957 break;
958 case NOTIF_WLS_PROPERTY:
959 power_supply_changed(battmgr->wls_psy);
960 break;
961 default:
962 dev_err(battmgr->dev, "unknown notification: %#x\n", notification);
963 break;
964 }
965 }
966
qcom_battmgr_sc8280xp_strcpy(char * dest,const char * src)967 static void qcom_battmgr_sc8280xp_strcpy(char *dest, const char *src)
968 {
969 size_t len = src[0];
970
971 /* Some firmware versions return Pascal-style strings */
972 if (len < BATTMGR_STRING_LEN && len == strnlen(src + 1, BATTMGR_STRING_LEN - 1)) {
973 memcpy(dest, src + 1, len);
974 dest[len] = '\0';
975 } else {
976 memcpy(dest, src, BATTMGR_STRING_LEN);
977 }
978 }
979
qcom_battmgr_sc8280xp_parse_technology(const char * chemistry)980 static unsigned int qcom_battmgr_sc8280xp_parse_technology(const char *chemistry)
981 {
982 if (!strncmp(chemistry, "LIO", BATTMGR_CHEMISTRY_LEN))
983 return POWER_SUPPLY_TECHNOLOGY_LION;
984
985 pr_err("Unknown battery technology '%s'\n", chemistry);
986 return POWER_SUPPLY_TECHNOLOGY_UNKNOWN;
987 }
988
qcom_battmgr_sc8280xp_convert_temp(unsigned int temperature)989 static unsigned int qcom_battmgr_sc8280xp_convert_temp(unsigned int temperature)
990 {
991 return DIV_ROUND_CLOSEST(temperature, 10);
992 }
993
qcom_battmgr_sc8280xp_callback(struct qcom_battmgr * battmgr,const struct qcom_battmgr_message * resp,size_t len)994 static void qcom_battmgr_sc8280xp_callback(struct qcom_battmgr *battmgr,
995 const struct qcom_battmgr_message *resp,
996 size_t len)
997 {
998 unsigned int opcode = le32_to_cpu(resp->hdr.opcode);
999 unsigned int source;
1000 unsigned int state;
1001 size_t payload_len = len - sizeof(struct pmic_glink_hdr);
1002
1003 if (payload_len < sizeof(__le32)) {
1004 dev_warn(battmgr->dev, "invalid payload length for %#x: %zd\n",
1005 opcode, len);
1006 return;
1007 }
1008
1009 switch (opcode) {
1010 case BATTMGR_REQUEST_NOTIFICATION:
1011 battmgr->error = 0;
1012 break;
1013 case BATTMGR_BAT_INFO:
1014 /* some firmware versions report an extra __le32 at the end of the payload */
1015 if (payload_len != sizeof(resp->info) &&
1016 payload_len != (sizeof(resp->info) + sizeof(__le32))) {
1017 dev_warn(battmgr->dev,
1018 "invalid payload length for battery information request: %zd\n",
1019 payload_len);
1020 battmgr->error = -ENODATA;
1021 return;
1022 }
1023
1024 battmgr->unit = le32_to_cpu(resp->info.power_unit);
1025
1026 battmgr->info.present = true;
1027 battmgr->info.design_capacity = le32_to_cpu(resp->info.design_capacity) * 1000;
1028 battmgr->info.last_full_capacity = le32_to_cpu(resp->info.last_full_capacity) * 1000;
1029 battmgr->info.voltage_max_design = le32_to_cpu(resp->info.design_voltage) * 1000;
1030 battmgr->info.capacity_low = le32_to_cpu(resp->info.capacity_low) * 1000;
1031 battmgr->info.cycle_count = le32_to_cpu(resp->info.cycle_count);
1032 qcom_battmgr_sc8280xp_strcpy(battmgr->info.model_number, resp->info.model_number);
1033 qcom_battmgr_sc8280xp_strcpy(battmgr->info.serial_number, resp->info.serial_number);
1034 battmgr->info.technology = qcom_battmgr_sc8280xp_parse_technology(resp->info.battery_chemistry);
1035 qcom_battmgr_sc8280xp_strcpy(battmgr->info.oem_info, resp->info.oem_info);
1036 battmgr->info.day = resp->info.day;
1037 battmgr->info.month = resp->info.month;
1038 battmgr->info.year = le16_to_cpu(resp->info.year);
1039 break;
1040 case BATTMGR_BAT_STATUS:
1041 if (payload_len != sizeof(resp->status)) {
1042 dev_warn(battmgr->dev,
1043 "invalid payload length for battery status request: %zd\n",
1044 payload_len);
1045 battmgr->error = -ENODATA;
1046 return;
1047 }
1048
1049 state = le32_to_cpu(resp->status.battery_state);
1050 if (state & BIT(0))
1051 battmgr->status.status = POWER_SUPPLY_STATUS_DISCHARGING;
1052 else if (state & BIT(1))
1053 battmgr->status.status = POWER_SUPPLY_STATUS_CHARGING;
1054 else
1055 battmgr->status.status = POWER_SUPPLY_STATUS_NOT_CHARGING;
1056
1057 battmgr->status.capacity = le32_to_cpu(resp->status.capacity) * 1000;
1058 battmgr->status.power_now = le32_to_cpu(resp->status.rate) * 1000;
1059 battmgr->status.voltage_now = le32_to_cpu(resp->status.battery_voltage) * 1000;
1060 battmgr->status.temperature = qcom_battmgr_sc8280xp_convert_temp(le32_to_cpu(resp->status.temperature));
1061
1062 source = le32_to_cpu(resp->status.charging_source);
1063 battmgr->ac.online = source == BATTMGR_CHARGING_SOURCE_AC;
1064 battmgr->usb.online = source == BATTMGR_CHARGING_SOURCE_USB;
1065 battmgr->wireless.online = source == BATTMGR_CHARGING_SOURCE_WIRELESS;
1066 break;
1067 case BATTMGR_BAT_DISCHARGE_TIME:
1068 battmgr->status.discharge_time = le32_to_cpu(resp->time);
1069 break;
1070 case BATTMGR_BAT_CHARGE_TIME:
1071 battmgr->status.charge_time = le32_to_cpu(resp->time);
1072 break;
1073 default:
1074 dev_warn(battmgr->dev, "unknown message %#x\n", opcode);
1075 break;
1076 }
1077
1078 complete(&battmgr->ack);
1079 }
1080
qcom_battmgr_sm8350_callback(struct qcom_battmgr * battmgr,const struct qcom_battmgr_message * resp,size_t len)1081 static void qcom_battmgr_sm8350_callback(struct qcom_battmgr *battmgr,
1082 const struct qcom_battmgr_message *resp,
1083 size_t len)
1084 {
1085 unsigned int property;
1086 unsigned int opcode = le32_to_cpu(resp->hdr.opcode);
1087 size_t payload_len = len - sizeof(struct pmic_glink_hdr);
1088 unsigned int val;
1089
1090 if (payload_len < sizeof(__le32)) {
1091 dev_warn(battmgr->dev, "invalid payload length for %#x: %zd\n",
1092 opcode, len);
1093 return;
1094 }
1095
1096 switch (opcode) {
1097 case BATTMGR_BAT_PROPERTY_GET:
1098 property = le32_to_cpu(resp->intval.property);
1099 if (property == BATT_MODEL_NAME) {
1100 if (payload_len != sizeof(resp->strval)) {
1101 dev_warn(battmgr->dev,
1102 "invalid payload length for BATT_MODEL_NAME request: %zd\n",
1103 payload_len);
1104 battmgr->error = -ENODATA;
1105 return;
1106 }
1107 } else {
1108 if (payload_len != sizeof(resp->intval)) {
1109 dev_warn(battmgr->dev,
1110 "invalid payload length for %#x request: %zd\n",
1111 property, payload_len);
1112 battmgr->error = -ENODATA;
1113 return;
1114 }
1115
1116 battmgr->error = le32_to_cpu(resp->intval.result);
1117 if (battmgr->error)
1118 goto out_complete;
1119 }
1120
1121 switch (property) {
1122 case BATT_STATUS:
1123 battmgr->status.status = le32_to_cpu(resp->intval.value);
1124 break;
1125 case BATT_HEALTH:
1126 battmgr->status.health = le32_to_cpu(resp->intval.value);
1127 break;
1128 case BATT_PRESENT:
1129 battmgr->info.present = le32_to_cpu(resp->intval.value);
1130 break;
1131 case BATT_CHG_TYPE:
1132 battmgr->info.charge_type = le32_to_cpu(resp->intval.value);
1133 break;
1134 case BATT_CAPACITY:
1135 battmgr->status.percent = le32_to_cpu(resp->intval.value) / 100;
1136 break;
1137 case BATT_VOLT_OCV:
1138 battmgr->status.voltage_ocv = le32_to_cpu(resp->intval.value);
1139 break;
1140 case BATT_VOLT_NOW:
1141 battmgr->status.voltage_now = le32_to_cpu(resp->intval.value);
1142 break;
1143 case BATT_VOLT_MAX:
1144 battmgr->info.voltage_max = le32_to_cpu(resp->intval.value);
1145 break;
1146 case BATT_CURR_NOW:
1147 battmgr->status.current_now = le32_to_cpu(resp->intval.value);
1148 break;
1149 case BATT_TEMP:
1150 val = le32_to_cpu(resp->intval.value);
1151 battmgr->status.temperature = DIV_ROUND_CLOSEST(val, 10);
1152 break;
1153 case BATT_TECHNOLOGY:
1154 battmgr->info.technology = le32_to_cpu(resp->intval.value);
1155 break;
1156 case BATT_CHG_COUNTER:
1157 battmgr->info.charge_count = le32_to_cpu(resp->intval.value);
1158 break;
1159 case BATT_CYCLE_COUNT:
1160 battmgr->info.cycle_count = le32_to_cpu(resp->intval.value);
1161 break;
1162 case BATT_CHG_FULL_DESIGN:
1163 battmgr->info.design_capacity = le32_to_cpu(resp->intval.value);
1164 break;
1165 case BATT_CHG_FULL:
1166 battmgr->info.last_full_capacity = le32_to_cpu(resp->intval.value);
1167 break;
1168 case BATT_MODEL_NAME:
1169 strscpy(battmgr->info.model_number, resp->strval.model, BATTMGR_STRING_LEN);
1170 break;
1171 case BATT_TTF_AVG:
1172 battmgr->status.charge_time = le32_to_cpu(resp->intval.value);
1173 break;
1174 case BATT_TTE_AVG:
1175 battmgr->status.discharge_time = le32_to_cpu(resp->intval.value);
1176 break;
1177 case BATT_POWER_NOW:
1178 battmgr->status.power_now = le32_to_cpu(resp->intval.value);
1179 break;
1180 default:
1181 dev_warn(battmgr->dev, "unknown property %#x\n", property);
1182 break;
1183 }
1184 break;
1185 case BATTMGR_USB_PROPERTY_GET:
1186 property = le32_to_cpu(resp->intval.property);
1187 if (payload_len != sizeof(resp->intval)) {
1188 dev_warn(battmgr->dev,
1189 "invalid payload length for %#x request: %zd\n",
1190 property, payload_len);
1191 battmgr->error = -ENODATA;
1192 return;
1193 }
1194
1195 battmgr->error = le32_to_cpu(resp->intval.result);
1196 if (battmgr->error)
1197 goto out_complete;
1198
1199 switch (property) {
1200 case USB_ONLINE:
1201 battmgr->usb.online = le32_to_cpu(resp->intval.value);
1202 break;
1203 case USB_VOLT_NOW:
1204 battmgr->usb.voltage_now = le32_to_cpu(resp->intval.value);
1205 break;
1206 case USB_VOLT_MAX:
1207 battmgr->usb.voltage_max = le32_to_cpu(resp->intval.value);
1208 break;
1209 case USB_CURR_NOW:
1210 battmgr->usb.current_now = le32_to_cpu(resp->intval.value);
1211 break;
1212 case USB_CURR_MAX:
1213 battmgr->usb.current_max = le32_to_cpu(resp->intval.value);
1214 break;
1215 case USB_INPUT_CURR_LIMIT:
1216 battmgr->usb.current_limit = le32_to_cpu(resp->intval.value);
1217 break;
1218 case USB_TYPE:
1219 battmgr->usb.usb_type = le32_to_cpu(resp->intval.value);
1220 break;
1221 default:
1222 dev_warn(battmgr->dev, "unknown property %#x\n", property);
1223 break;
1224 }
1225 break;
1226 case BATTMGR_WLS_PROPERTY_GET:
1227 property = le32_to_cpu(resp->intval.property);
1228 if (payload_len != sizeof(resp->intval)) {
1229 dev_warn(battmgr->dev,
1230 "invalid payload length for %#x request: %zd\n",
1231 property, payload_len);
1232 battmgr->error = -ENODATA;
1233 return;
1234 }
1235
1236 battmgr->error = le32_to_cpu(resp->intval.result);
1237 if (battmgr->error)
1238 goto out_complete;
1239
1240 switch (property) {
1241 case WLS_ONLINE:
1242 battmgr->wireless.online = le32_to_cpu(resp->intval.value);
1243 break;
1244 case WLS_VOLT_NOW:
1245 battmgr->wireless.voltage_now = le32_to_cpu(resp->intval.value);
1246 break;
1247 case WLS_VOLT_MAX:
1248 battmgr->wireless.voltage_max = le32_to_cpu(resp->intval.value);
1249 break;
1250 case WLS_CURR_NOW:
1251 battmgr->wireless.current_now = le32_to_cpu(resp->intval.value);
1252 break;
1253 case WLS_CURR_MAX:
1254 battmgr->wireless.current_max = le32_to_cpu(resp->intval.value);
1255 break;
1256 default:
1257 dev_warn(battmgr->dev, "unknown property %#x\n", property);
1258 break;
1259 }
1260 break;
1261 case BATTMGR_REQUEST_NOTIFICATION:
1262 battmgr->error = 0;
1263 break;
1264 default:
1265 dev_warn(battmgr->dev, "unknown message %#x\n", opcode);
1266 break;
1267 }
1268
1269 out_complete:
1270 complete(&battmgr->ack);
1271 }
1272
qcom_battmgr_callback(const void * data,size_t len,void * priv)1273 static void qcom_battmgr_callback(const void *data, size_t len, void *priv)
1274 {
1275 const struct pmic_glink_hdr *hdr = data;
1276 struct qcom_battmgr *battmgr = priv;
1277 unsigned int opcode = le32_to_cpu(hdr->opcode);
1278
1279 if (opcode == BATTMGR_NOTIFICATION)
1280 qcom_battmgr_notification(battmgr, data, len);
1281 else if (battmgr->variant == QCOM_BATTMGR_SC8280XP)
1282 qcom_battmgr_sc8280xp_callback(battmgr, data, len);
1283 else
1284 qcom_battmgr_sm8350_callback(battmgr, data, len);
1285 }
1286
qcom_battmgr_enable_worker(struct work_struct * work)1287 static void qcom_battmgr_enable_worker(struct work_struct *work)
1288 {
1289 struct qcom_battmgr *battmgr = container_of(work, struct qcom_battmgr, enable_work);
1290 struct qcom_battmgr_enable_request req = {
1291 .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR),
1292 .hdr.type = cpu_to_le32(PMIC_GLINK_NOTIFY),
1293 .hdr.opcode = cpu_to_le32(BATTMGR_REQUEST_NOTIFICATION),
1294 };
1295 int ret;
1296
1297 ret = qcom_battmgr_request(battmgr, &req, sizeof(req));
1298 if (ret)
1299 dev_err(battmgr->dev, "failed to request power notifications\n");
1300 }
1301
qcom_battmgr_pdr_notify(void * priv,int state)1302 static void qcom_battmgr_pdr_notify(void *priv, int state)
1303 {
1304 struct qcom_battmgr *battmgr = priv;
1305
1306 if (state == SERVREG_SERVICE_STATE_UP) {
1307 battmgr->service_up = true;
1308 schedule_work(&battmgr->enable_work);
1309 } else {
1310 battmgr->service_up = false;
1311 }
1312 }
1313
1314 static const struct of_device_id qcom_battmgr_of_variants[] = {
1315 { .compatible = "qcom,sc8180x-pmic-glink", .data = (void *)QCOM_BATTMGR_SC8280XP },
1316 { .compatible = "qcom,sc8280xp-pmic-glink", .data = (void *)QCOM_BATTMGR_SC8280XP },
1317 { .compatible = "qcom,x1e80100-pmic-glink", .data = (void *)QCOM_BATTMGR_SC8280XP },
1318 /* Unmatched devices falls back to QCOM_BATTMGR_SM8350 */
1319 {}
1320 };
1321
1322 static char *qcom_battmgr_battery[] = { "battery" };
1323
qcom_battmgr_probe(struct auxiliary_device * adev,const struct auxiliary_device_id * id)1324 static int qcom_battmgr_probe(struct auxiliary_device *adev,
1325 const struct auxiliary_device_id *id)
1326 {
1327 struct power_supply_config psy_cfg_supply = {};
1328 struct power_supply_config psy_cfg = {};
1329 const struct of_device_id *match;
1330 struct qcom_battmgr *battmgr;
1331 struct device *dev = &adev->dev;
1332
1333 battmgr = devm_kzalloc(dev, sizeof(*battmgr), GFP_KERNEL);
1334 if (!battmgr)
1335 return -ENOMEM;
1336
1337 battmgr->dev = dev;
1338
1339 psy_cfg.drv_data = battmgr;
1340 psy_cfg.fwnode = dev_fwnode(&adev->dev);
1341
1342 psy_cfg_supply.drv_data = battmgr;
1343 psy_cfg_supply.fwnode = dev_fwnode(&adev->dev);
1344 psy_cfg_supply.supplied_to = qcom_battmgr_battery;
1345 psy_cfg_supply.num_supplicants = 1;
1346
1347 INIT_WORK(&battmgr->enable_work, qcom_battmgr_enable_worker);
1348 mutex_init(&battmgr->lock);
1349 init_completion(&battmgr->ack);
1350
1351 match = of_match_device(qcom_battmgr_of_variants, dev->parent);
1352 if (match)
1353 battmgr->variant = (unsigned long)match->data;
1354 else
1355 battmgr->variant = QCOM_BATTMGR_SM8350;
1356
1357 if (battmgr->variant == QCOM_BATTMGR_SC8280XP) {
1358 battmgr->bat_psy = devm_power_supply_register(dev, &sc8280xp_bat_psy_desc, &psy_cfg);
1359 if (IS_ERR(battmgr->bat_psy))
1360 return dev_err_probe(dev, PTR_ERR(battmgr->bat_psy),
1361 "failed to register battery power supply\n");
1362
1363 battmgr->ac_psy = devm_power_supply_register(dev, &sc8280xp_ac_psy_desc, &psy_cfg_supply);
1364 if (IS_ERR(battmgr->ac_psy))
1365 return dev_err_probe(dev, PTR_ERR(battmgr->ac_psy),
1366 "failed to register AC power supply\n");
1367
1368 battmgr->usb_psy = devm_power_supply_register(dev, &sc8280xp_usb_psy_desc, &psy_cfg_supply);
1369 if (IS_ERR(battmgr->usb_psy))
1370 return dev_err_probe(dev, PTR_ERR(battmgr->usb_psy),
1371 "failed to register USB power supply\n");
1372
1373 battmgr->wls_psy = devm_power_supply_register(dev, &sc8280xp_wls_psy_desc, &psy_cfg_supply);
1374 if (IS_ERR(battmgr->wls_psy))
1375 return dev_err_probe(dev, PTR_ERR(battmgr->wls_psy),
1376 "failed to register wireless charing power supply\n");
1377 } else {
1378 battmgr->bat_psy = devm_power_supply_register(dev, &sm8350_bat_psy_desc, &psy_cfg);
1379 if (IS_ERR(battmgr->bat_psy))
1380 return dev_err_probe(dev, PTR_ERR(battmgr->bat_psy),
1381 "failed to register battery power supply\n");
1382
1383 battmgr->usb_psy = devm_power_supply_register(dev, &sm8350_usb_psy_desc, &psy_cfg_supply);
1384 if (IS_ERR(battmgr->usb_psy))
1385 return dev_err_probe(dev, PTR_ERR(battmgr->usb_psy),
1386 "failed to register USB power supply\n");
1387
1388 battmgr->wls_psy = devm_power_supply_register(dev, &sm8350_wls_psy_desc, &psy_cfg_supply);
1389 if (IS_ERR(battmgr->wls_psy))
1390 return dev_err_probe(dev, PTR_ERR(battmgr->wls_psy),
1391 "failed to register wireless charing power supply\n");
1392 }
1393
1394 battmgr->client = devm_pmic_glink_client_alloc(dev, PMIC_GLINK_OWNER_BATTMGR,
1395 qcom_battmgr_callback,
1396 qcom_battmgr_pdr_notify,
1397 battmgr);
1398 if (IS_ERR(battmgr->client))
1399 return PTR_ERR(battmgr->client);
1400
1401 pmic_glink_client_register(battmgr->client);
1402
1403 return 0;
1404 }
1405
1406 static const struct auxiliary_device_id qcom_battmgr_id_table[] = {
1407 { .name = "pmic_glink.power-supply", },
1408 {},
1409 };
1410 MODULE_DEVICE_TABLE(auxiliary, qcom_battmgr_id_table);
1411
1412 static struct auxiliary_driver qcom_battmgr_driver = {
1413 .name = "pmic_glink_power_supply",
1414 .probe = qcom_battmgr_probe,
1415 .id_table = qcom_battmgr_id_table,
1416 };
1417
1418 module_auxiliary_driver(qcom_battmgr_driver);
1419
1420 MODULE_DESCRIPTION("Qualcomm PMIC GLINK battery manager driver");
1421 MODULE_LICENSE("GPL");
1422