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 percent */
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
qcom_battmgr_request(struct qcom_battmgr * battmgr,void * data,size_t len)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
qcom_battmgr_request_property(struct qcom_battmgr * battmgr,int opcode,int property,u32 value)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
qcom_battmgr_update_status(struct qcom_battmgr * battmgr)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
qcom_battmgr_update_info(struct qcom_battmgr * battmgr)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
qcom_battmgr_update_charge_time(struct qcom_battmgr * battmgr)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
qcom_battmgr_update_discharge_time(struct qcom_battmgr * battmgr)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
qcom_battmgr_bat_sm8350_update(struct qcom_battmgr * battmgr,enum power_supply_property psp)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
qcom_battmgr_bat_sc8280xp_update(struct qcom_battmgr * battmgr,enum power_supply_property psp)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
qcom_battmgr_bat_get_property(struct power_supply * psy,enum power_supply_property psp,union power_supply_propval * val)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
qcom_battmgr_ac_get_property(struct power_supply * psy,enum power_supply_property psp,union power_supply_propval * val)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
qcom_battmgr_usb_sm8350_update(struct qcom_battmgr * battmgr,enum power_supply_property psp)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
qcom_battmgr_usb_get_property(struct power_supply * psy,enum power_supply_property psp,union power_supply_propval * val)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_property sc8280xp_usb_props[] = {
790 POWER_SUPPLY_PROP_ONLINE,
791 };
792
793 static const struct power_supply_desc sc8280xp_usb_psy_desc = {
794 .name = "qcom-battmgr-usb",
795 .type = POWER_SUPPLY_TYPE_USB,
796 .properties = sc8280xp_usb_props,
797 .num_properties = ARRAY_SIZE(sc8280xp_usb_props),
798 .get_property = qcom_battmgr_usb_get_property,
799 .usb_types = BIT(POWER_SUPPLY_USB_TYPE_UNKNOWN) |
800 BIT(POWER_SUPPLY_USB_TYPE_SDP) |
801 BIT(POWER_SUPPLY_USB_TYPE_DCP) |
802 BIT(POWER_SUPPLY_USB_TYPE_CDP) |
803 BIT(POWER_SUPPLY_USB_TYPE_ACA) |
804 BIT(POWER_SUPPLY_USB_TYPE_C) |
805 BIT(POWER_SUPPLY_USB_TYPE_PD) |
806 BIT(POWER_SUPPLY_USB_TYPE_PD_DRP) |
807 BIT(POWER_SUPPLY_USB_TYPE_PD_PPS) |
808 BIT(POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID),
809 };
810
811 static const enum power_supply_property sm8350_usb_props[] = {
812 POWER_SUPPLY_PROP_ONLINE,
813 POWER_SUPPLY_PROP_VOLTAGE_NOW,
814 POWER_SUPPLY_PROP_VOLTAGE_MAX,
815 POWER_SUPPLY_PROP_CURRENT_NOW,
816 POWER_SUPPLY_PROP_CURRENT_MAX,
817 POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
818 POWER_SUPPLY_PROP_USB_TYPE,
819 };
820
821 static const struct power_supply_desc sm8350_usb_psy_desc = {
822 .name = "qcom-battmgr-usb",
823 .type = POWER_SUPPLY_TYPE_USB,
824 .properties = sm8350_usb_props,
825 .num_properties = ARRAY_SIZE(sm8350_usb_props),
826 .get_property = qcom_battmgr_usb_get_property,
827 .usb_types = BIT(POWER_SUPPLY_USB_TYPE_UNKNOWN) |
828 BIT(POWER_SUPPLY_USB_TYPE_SDP) |
829 BIT(POWER_SUPPLY_USB_TYPE_DCP) |
830 BIT(POWER_SUPPLY_USB_TYPE_CDP) |
831 BIT(POWER_SUPPLY_USB_TYPE_ACA) |
832 BIT(POWER_SUPPLY_USB_TYPE_C) |
833 BIT(POWER_SUPPLY_USB_TYPE_PD) |
834 BIT(POWER_SUPPLY_USB_TYPE_PD_DRP) |
835 BIT(POWER_SUPPLY_USB_TYPE_PD_PPS) |
836 BIT(POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID),
837 };
838
839 static const u8 sm8350_wls_prop_map[] = {
840 [POWER_SUPPLY_PROP_ONLINE] = WLS_ONLINE,
841 [POWER_SUPPLY_PROP_VOLTAGE_NOW] = WLS_VOLT_NOW,
842 [POWER_SUPPLY_PROP_VOLTAGE_MAX] = WLS_VOLT_MAX,
843 [POWER_SUPPLY_PROP_CURRENT_NOW] = WLS_CURR_NOW,
844 [POWER_SUPPLY_PROP_CURRENT_MAX] = WLS_CURR_MAX,
845 };
846
qcom_battmgr_wls_sm8350_update(struct qcom_battmgr * battmgr,enum power_supply_property psp)847 static int qcom_battmgr_wls_sm8350_update(struct qcom_battmgr *battmgr,
848 enum power_supply_property psp)
849 {
850 unsigned int prop;
851 int ret;
852
853 if (psp >= ARRAY_SIZE(sm8350_wls_prop_map))
854 return -EINVAL;
855
856 prop = sm8350_wls_prop_map[psp];
857
858 mutex_lock(&battmgr->lock);
859 ret = qcom_battmgr_request_property(battmgr, BATTMGR_WLS_PROPERTY_GET, prop, 0);
860 mutex_unlock(&battmgr->lock);
861
862 return ret;
863 }
864
qcom_battmgr_wls_get_property(struct power_supply * psy,enum power_supply_property psp,union power_supply_propval * val)865 static int qcom_battmgr_wls_get_property(struct power_supply *psy,
866 enum power_supply_property psp,
867 union power_supply_propval *val)
868 {
869 struct qcom_battmgr *battmgr = power_supply_get_drvdata(psy);
870 int ret;
871
872 if (!battmgr->service_up)
873 return -EAGAIN;
874
875 if (battmgr->variant == QCOM_BATTMGR_SC8280XP)
876 ret = qcom_battmgr_bat_sc8280xp_update(battmgr, psp);
877 else
878 ret = qcom_battmgr_wls_sm8350_update(battmgr, psp);
879 if (ret < 0)
880 return ret;
881
882 switch (psp) {
883 case POWER_SUPPLY_PROP_ONLINE:
884 val->intval = battmgr->wireless.online;
885 break;
886 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
887 val->intval = battmgr->wireless.voltage_now;
888 break;
889 case POWER_SUPPLY_PROP_VOLTAGE_MAX:
890 val->intval = battmgr->wireless.voltage_max;
891 break;
892 case POWER_SUPPLY_PROP_CURRENT_NOW:
893 val->intval = battmgr->wireless.current_now;
894 break;
895 case POWER_SUPPLY_PROP_CURRENT_MAX:
896 val->intval = battmgr->wireless.current_max;
897 break;
898 default:
899 return -EINVAL;
900 }
901
902 return 0;
903 }
904
905 static const enum power_supply_property sc8280xp_wls_props[] = {
906 POWER_SUPPLY_PROP_ONLINE,
907 };
908
909 static const struct power_supply_desc sc8280xp_wls_psy_desc = {
910 .name = "qcom-battmgr-wls",
911 .type = POWER_SUPPLY_TYPE_WIRELESS,
912 .properties = sc8280xp_wls_props,
913 .num_properties = ARRAY_SIZE(sc8280xp_wls_props),
914 .get_property = qcom_battmgr_wls_get_property,
915 };
916
917 static const enum power_supply_property sm8350_wls_props[] = {
918 POWER_SUPPLY_PROP_ONLINE,
919 POWER_SUPPLY_PROP_VOLTAGE_NOW,
920 POWER_SUPPLY_PROP_VOLTAGE_MAX,
921 POWER_SUPPLY_PROP_CURRENT_NOW,
922 POWER_SUPPLY_PROP_CURRENT_MAX,
923 };
924
925 static const struct power_supply_desc sm8350_wls_psy_desc = {
926 .name = "qcom-battmgr-wls",
927 .type = POWER_SUPPLY_TYPE_WIRELESS,
928 .properties = sm8350_wls_props,
929 .num_properties = ARRAY_SIZE(sm8350_wls_props),
930 .get_property = qcom_battmgr_wls_get_property,
931 };
932
qcom_battmgr_notification(struct qcom_battmgr * battmgr,const struct qcom_battmgr_message * msg,int len)933 static void qcom_battmgr_notification(struct qcom_battmgr *battmgr,
934 const struct qcom_battmgr_message *msg,
935 int len)
936 {
937 size_t payload_len = len - sizeof(struct pmic_glink_hdr);
938 unsigned int notification;
939
940 if (payload_len != sizeof(msg->notification)) {
941 dev_warn(battmgr->dev, "ignoring notification with invalid length\n");
942 return;
943 }
944
945 notification = le32_to_cpu(msg->notification);
946 switch (notification) {
947 case NOTIF_BAT_INFO:
948 battmgr->info.valid = false;
949 fallthrough;
950 case NOTIF_BAT_STATUS:
951 case NOTIF_BAT_PROPERTY:
952 power_supply_changed(battmgr->bat_psy);
953 break;
954 case NOTIF_USB_PROPERTY:
955 power_supply_changed(battmgr->usb_psy);
956 break;
957 case NOTIF_WLS_PROPERTY:
958 power_supply_changed(battmgr->wls_psy);
959 break;
960 default:
961 dev_err(battmgr->dev, "unknown notification: %#x\n", notification);
962 break;
963 }
964 }
965
qcom_battmgr_sc8280xp_strcpy(char * dest,const char * src)966 static void qcom_battmgr_sc8280xp_strcpy(char *dest, const char *src)
967 {
968 size_t len = src[0];
969
970 /* Some firmware versions return Pascal-style strings */
971 if (len < BATTMGR_STRING_LEN && len == strnlen(src + 1, BATTMGR_STRING_LEN - 1)) {
972 memcpy(dest, src + 1, len);
973 dest[len] = '\0';
974 } else {
975 memcpy(dest, src, BATTMGR_STRING_LEN);
976 }
977 }
978
qcom_battmgr_sc8280xp_parse_technology(const char * chemistry)979 static unsigned int qcom_battmgr_sc8280xp_parse_technology(const char *chemistry)
980 {
981 if (!strncmp(chemistry, "LIO", BATTMGR_CHEMISTRY_LEN))
982 return POWER_SUPPLY_TECHNOLOGY_LION;
983
984 pr_err("Unknown battery technology '%s'\n", chemistry);
985 return POWER_SUPPLY_TECHNOLOGY_UNKNOWN;
986 }
987
qcom_battmgr_sc8280xp_convert_temp(unsigned int temperature)988 static unsigned int qcom_battmgr_sc8280xp_convert_temp(unsigned int temperature)
989 {
990 return DIV_ROUND_CLOSEST(temperature, 10);
991 }
992
qcom_battmgr_sc8280xp_callback(struct qcom_battmgr * battmgr,const struct qcom_battmgr_message * resp,size_t len)993 static void qcom_battmgr_sc8280xp_callback(struct qcom_battmgr *battmgr,
994 const struct qcom_battmgr_message *resp,
995 size_t len)
996 {
997 unsigned int opcode = le32_to_cpu(resp->hdr.opcode);
998 unsigned int source;
999 unsigned int state;
1000 size_t payload_len = len - sizeof(struct pmic_glink_hdr);
1001
1002 if (payload_len < sizeof(__le32)) {
1003 dev_warn(battmgr->dev, "invalid payload length for %#x: %zd\n",
1004 opcode, len);
1005 return;
1006 }
1007
1008 switch (opcode) {
1009 case BATTMGR_REQUEST_NOTIFICATION:
1010 battmgr->error = 0;
1011 break;
1012 case BATTMGR_BAT_INFO:
1013 /* some firmware versions report an extra __le32 at the end of the payload */
1014 if (payload_len != sizeof(resp->info) &&
1015 payload_len != (sizeof(resp->info) + sizeof(__le32))) {
1016 dev_warn(battmgr->dev,
1017 "invalid payload length for battery information request: %zd\n",
1018 payload_len);
1019 battmgr->error = -ENODATA;
1020 return;
1021 }
1022
1023 battmgr->unit = le32_to_cpu(resp->info.power_unit);
1024
1025 battmgr->info.present = true;
1026 battmgr->info.design_capacity = le32_to_cpu(resp->info.design_capacity) * 1000;
1027 battmgr->info.last_full_capacity = le32_to_cpu(resp->info.last_full_capacity) * 1000;
1028 battmgr->info.voltage_max_design = le32_to_cpu(resp->info.design_voltage) * 1000;
1029 battmgr->info.capacity_low = le32_to_cpu(resp->info.capacity_low) * 1000;
1030 battmgr->info.cycle_count = le32_to_cpu(resp->info.cycle_count);
1031 qcom_battmgr_sc8280xp_strcpy(battmgr->info.model_number, resp->info.model_number);
1032 qcom_battmgr_sc8280xp_strcpy(battmgr->info.serial_number, resp->info.serial_number);
1033 battmgr->info.technology = qcom_battmgr_sc8280xp_parse_technology(resp->info.battery_chemistry);
1034 qcom_battmgr_sc8280xp_strcpy(battmgr->info.oem_info, resp->info.oem_info);
1035 battmgr->info.day = resp->info.day;
1036 battmgr->info.month = resp->info.month;
1037 battmgr->info.year = le16_to_cpu(resp->info.year);
1038 break;
1039 case BATTMGR_BAT_STATUS:
1040 if (payload_len != sizeof(resp->status)) {
1041 dev_warn(battmgr->dev,
1042 "invalid payload length for battery status request: %zd\n",
1043 payload_len);
1044 battmgr->error = -ENODATA;
1045 return;
1046 }
1047
1048 state = le32_to_cpu(resp->status.battery_state);
1049 if (state & BIT(0))
1050 battmgr->status.status = POWER_SUPPLY_STATUS_DISCHARGING;
1051 else if (state & BIT(1))
1052 battmgr->status.status = POWER_SUPPLY_STATUS_CHARGING;
1053 else
1054 battmgr->status.status = POWER_SUPPLY_STATUS_NOT_CHARGING;
1055
1056 battmgr->status.capacity = le32_to_cpu(resp->status.capacity) * 1000;
1057 battmgr->status.power_now = le32_to_cpu(resp->status.rate) * 1000;
1058 battmgr->status.voltage_now = le32_to_cpu(resp->status.battery_voltage) * 1000;
1059 battmgr->status.temperature = qcom_battmgr_sc8280xp_convert_temp(le32_to_cpu(resp->status.temperature));
1060
1061 source = le32_to_cpu(resp->status.charging_source);
1062 battmgr->ac.online = source == BATTMGR_CHARGING_SOURCE_AC;
1063 battmgr->usb.online = source == BATTMGR_CHARGING_SOURCE_USB;
1064 battmgr->wireless.online = source == BATTMGR_CHARGING_SOURCE_WIRELESS;
1065 break;
1066 case BATTMGR_BAT_DISCHARGE_TIME:
1067 battmgr->status.discharge_time = le32_to_cpu(resp->time);
1068 break;
1069 case BATTMGR_BAT_CHARGE_TIME:
1070 battmgr->status.charge_time = le32_to_cpu(resp->time);
1071 break;
1072 default:
1073 dev_warn(battmgr->dev, "unknown message %#x\n", opcode);
1074 break;
1075 }
1076
1077 complete(&battmgr->ack);
1078 }
1079
qcom_battmgr_sm8350_callback(struct qcom_battmgr * battmgr,const struct qcom_battmgr_message * resp,size_t len)1080 static void qcom_battmgr_sm8350_callback(struct qcom_battmgr *battmgr,
1081 const struct qcom_battmgr_message *resp,
1082 size_t len)
1083 {
1084 unsigned int property;
1085 unsigned int opcode = le32_to_cpu(resp->hdr.opcode);
1086 size_t payload_len = len - sizeof(struct pmic_glink_hdr);
1087 unsigned int val;
1088
1089 if (payload_len < sizeof(__le32)) {
1090 dev_warn(battmgr->dev, "invalid payload length for %#x: %zd\n",
1091 opcode, len);
1092 return;
1093 }
1094
1095 switch (opcode) {
1096 case BATTMGR_BAT_PROPERTY_GET:
1097 property = le32_to_cpu(resp->intval.property);
1098 if (property == BATT_MODEL_NAME) {
1099 if (payload_len != sizeof(resp->strval)) {
1100 dev_warn(battmgr->dev,
1101 "invalid payload length for BATT_MODEL_NAME request: %zd\n",
1102 payload_len);
1103 battmgr->error = -ENODATA;
1104 return;
1105 }
1106 } else {
1107 if (payload_len != sizeof(resp->intval)) {
1108 dev_warn(battmgr->dev,
1109 "invalid payload length for %#x request: %zd\n",
1110 property, payload_len);
1111 battmgr->error = -ENODATA;
1112 return;
1113 }
1114
1115 battmgr->error = le32_to_cpu(resp->intval.result);
1116 if (battmgr->error)
1117 goto out_complete;
1118 }
1119
1120 switch (property) {
1121 case BATT_STATUS:
1122 battmgr->status.status = le32_to_cpu(resp->intval.value);
1123 break;
1124 case BATT_HEALTH:
1125 battmgr->status.health = le32_to_cpu(resp->intval.value);
1126 break;
1127 case BATT_PRESENT:
1128 battmgr->info.present = le32_to_cpu(resp->intval.value);
1129 break;
1130 case BATT_CHG_TYPE:
1131 battmgr->info.charge_type = le32_to_cpu(resp->intval.value);
1132 break;
1133 case BATT_CAPACITY:
1134 battmgr->status.percent = le32_to_cpu(resp->intval.value) / 100;
1135 break;
1136 case BATT_VOLT_OCV:
1137 battmgr->status.voltage_ocv = le32_to_cpu(resp->intval.value);
1138 break;
1139 case BATT_VOLT_NOW:
1140 battmgr->status.voltage_now = le32_to_cpu(resp->intval.value);
1141 break;
1142 case BATT_VOLT_MAX:
1143 battmgr->info.voltage_max = le32_to_cpu(resp->intval.value);
1144 break;
1145 case BATT_CURR_NOW:
1146 battmgr->status.current_now = le32_to_cpu(resp->intval.value);
1147 break;
1148 case BATT_TEMP:
1149 val = le32_to_cpu(resp->intval.value);
1150 battmgr->status.temperature = DIV_ROUND_CLOSEST(val, 10);
1151 break;
1152 case BATT_TECHNOLOGY:
1153 battmgr->info.technology = le32_to_cpu(resp->intval.value);
1154 break;
1155 case BATT_CHG_COUNTER:
1156 battmgr->info.charge_count = le32_to_cpu(resp->intval.value);
1157 break;
1158 case BATT_CYCLE_COUNT:
1159 battmgr->info.cycle_count = le32_to_cpu(resp->intval.value);
1160 break;
1161 case BATT_CHG_FULL_DESIGN:
1162 battmgr->info.design_capacity = le32_to_cpu(resp->intval.value);
1163 break;
1164 case BATT_CHG_FULL:
1165 battmgr->info.last_full_capacity = le32_to_cpu(resp->intval.value);
1166 break;
1167 case BATT_MODEL_NAME:
1168 strscpy(battmgr->info.model_number, resp->strval.model, BATTMGR_STRING_LEN);
1169 break;
1170 case BATT_TTF_AVG:
1171 battmgr->status.charge_time = le32_to_cpu(resp->intval.value);
1172 break;
1173 case BATT_TTE_AVG:
1174 battmgr->status.discharge_time = le32_to_cpu(resp->intval.value);
1175 break;
1176 case BATT_POWER_NOW:
1177 battmgr->status.power_now = le32_to_cpu(resp->intval.value);
1178 break;
1179 default:
1180 dev_warn(battmgr->dev, "unknown property %#x\n", property);
1181 break;
1182 }
1183 break;
1184 case BATTMGR_USB_PROPERTY_GET:
1185 property = le32_to_cpu(resp->intval.property);
1186 if (payload_len != sizeof(resp->intval)) {
1187 dev_warn(battmgr->dev,
1188 "invalid payload length for %#x request: %zd\n",
1189 property, payload_len);
1190 battmgr->error = -ENODATA;
1191 return;
1192 }
1193
1194 battmgr->error = le32_to_cpu(resp->intval.result);
1195 if (battmgr->error)
1196 goto out_complete;
1197
1198 switch (property) {
1199 case USB_ONLINE:
1200 battmgr->usb.online = le32_to_cpu(resp->intval.value);
1201 break;
1202 case USB_VOLT_NOW:
1203 battmgr->usb.voltage_now = le32_to_cpu(resp->intval.value);
1204 break;
1205 case USB_VOLT_MAX:
1206 battmgr->usb.voltage_max = le32_to_cpu(resp->intval.value);
1207 break;
1208 case USB_CURR_NOW:
1209 battmgr->usb.current_now = le32_to_cpu(resp->intval.value);
1210 break;
1211 case USB_CURR_MAX:
1212 battmgr->usb.current_max = le32_to_cpu(resp->intval.value);
1213 break;
1214 case USB_INPUT_CURR_LIMIT:
1215 battmgr->usb.current_limit = le32_to_cpu(resp->intval.value);
1216 break;
1217 case USB_TYPE:
1218 battmgr->usb.usb_type = le32_to_cpu(resp->intval.value);
1219 break;
1220 default:
1221 dev_warn(battmgr->dev, "unknown property %#x\n", property);
1222 break;
1223 }
1224 break;
1225 case BATTMGR_WLS_PROPERTY_GET:
1226 property = le32_to_cpu(resp->intval.property);
1227 if (payload_len != sizeof(resp->intval)) {
1228 dev_warn(battmgr->dev,
1229 "invalid payload length for %#x request: %zd\n",
1230 property, payload_len);
1231 battmgr->error = -ENODATA;
1232 return;
1233 }
1234
1235 battmgr->error = le32_to_cpu(resp->intval.result);
1236 if (battmgr->error)
1237 goto out_complete;
1238
1239 switch (property) {
1240 case WLS_ONLINE:
1241 battmgr->wireless.online = le32_to_cpu(resp->intval.value);
1242 break;
1243 case WLS_VOLT_NOW:
1244 battmgr->wireless.voltage_now = le32_to_cpu(resp->intval.value);
1245 break;
1246 case WLS_VOLT_MAX:
1247 battmgr->wireless.voltage_max = le32_to_cpu(resp->intval.value);
1248 break;
1249 case WLS_CURR_NOW:
1250 battmgr->wireless.current_now = le32_to_cpu(resp->intval.value);
1251 break;
1252 case WLS_CURR_MAX:
1253 battmgr->wireless.current_max = le32_to_cpu(resp->intval.value);
1254 break;
1255 default:
1256 dev_warn(battmgr->dev, "unknown property %#x\n", property);
1257 break;
1258 }
1259 break;
1260 case BATTMGR_REQUEST_NOTIFICATION:
1261 battmgr->error = 0;
1262 break;
1263 default:
1264 dev_warn(battmgr->dev, "unknown message %#x\n", opcode);
1265 break;
1266 }
1267
1268 out_complete:
1269 complete(&battmgr->ack);
1270 }
1271
qcom_battmgr_callback(const void * data,size_t len,void * priv)1272 static void qcom_battmgr_callback(const void *data, size_t len, void *priv)
1273 {
1274 const struct pmic_glink_hdr *hdr = data;
1275 struct qcom_battmgr *battmgr = priv;
1276 unsigned int opcode = le32_to_cpu(hdr->opcode);
1277
1278 if (opcode == BATTMGR_NOTIFICATION)
1279 qcom_battmgr_notification(battmgr, data, len);
1280 else if (battmgr->variant == QCOM_BATTMGR_SC8280XP)
1281 qcom_battmgr_sc8280xp_callback(battmgr, data, len);
1282 else
1283 qcom_battmgr_sm8350_callback(battmgr, data, len);
1284 }
1285
qcom_battmgr_enable_worker(struct work_struct * work)1286 static void qcom_battmgr_enable_worker(struct work_struct *work)
1287 {
1288 struct qcom_battmgr *battmgr = container_of(work, struct qcom_battmgr, enable_work);
1289 struct qcom_battmgr_enable_request req = {
1290 .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR),
1291 .hdr.type = cpu_to_le32(PMIC_GLINK_NOTIFY),
1292 .hdr.opcode = cpu_to_le32(BATTMGR_REQUEST_NOTIFICATION),
1293 };
1294 int ret;
1295
1296 ret = qcom_battmgr_request(battmgr, &req, sizeof(req));
1297 if (ret)
1298 dev_err(battmgr->dev, "failed to request power notifications\n");
1299 }
1300
qcom_battmgr_pdr_notify(void * priv,int state)1301 static void qcom_battmgr_pdr_notify(void *priv, int state)
1302 {
1303 struct qcom_battmgr *battmgr = priv;
1304
1305 if (state == SERVREG_SERVICE_STATE_UP) {
1306 battmgr->service_up = true;
1307 schedule_work(&battmgr->enable_work);
1308 } else {
1309 battmgr->service_up = false;
1310 }
1311 }
1312
1313 static const struct of_device_id qcom_battmgr_of_variants[] = {
1314 { .compatible = "qcom,sc8180x-pmic-glink", .data = (void *)QCOM_BATTMGR_SC8280XP },
1315 { .compatible = "qcom,sc8280xp-pmic-glink", .data = (void *)QCOM_BATTMGR_SC8280XP },
1316 { .compatible = "qcom,x1e80100-pmic-glink", .data = (void *)QCOM_BATTMGR_SC8280XP },
1317 /* Unmatched devices falls back to QCOM_BATTMGR_SM8350 */
1318 {}
1319 };
1320
1321 static char *qcom_battmgr_battery[] = { "battery" };
1322
qcom_battmgr_probe(struct auxiliary_device * adev,const struct auxiliary_device_id * id)1323 static int qcom_battmgr_probe(struct auxiliary_device *adev,
1324 const struct auxiliary_device_id *id)
1325 {
1326 struct power_supply_config psy_cfg_supply = {};
1327 struct power_supply_config psy_cfg = {};
1328 const struct of_device_id *match;
1329 struct qcom_battmgr *battmgr;
1330 struct device *dev = &adev->dev;
1331
1332 battmgr = devm_kzalloc(dev, sizeof(*battmgr), GFP_KERNEL);
1333 if (!battmgr)
1334 return -ENOMEM;
1335
1336 battmgr->dev = dev;
1337
1338 psy_cfg.drv_data = battmgr;
1339 psy_cfg.of_node = adev->dev.of_node;
1340
1341 psy_cfg_supply.drv_data = battmgr;
1342 psy_cfg_supply.of_node = adev->dev.of_node;
1343 psy_cfg_supply.supplied_to = qcom_battmgr_battery;
1344 psy_cfg_supply.num_supplicants = 1;
1345
1346 INIT_WORK(&battmgr->enable_work, qcom_battmgr_enable_worker);
1347 mutex_init(&battmgr->lock);
1348 init_completion(&battmgr->ack);
1349
1350 match = of_match_device(qcom_battmgr_of_variants, dev->parent);
1351 if (match)
1352 battmgr->variant = (unsigned long)match->data;
1353 else
1354 battmgr->variant = QCOM_BATTMGR_SM8350;
1355
1356 if (battmgr->variant == QCOM_BATTMGR_SC8280XP) {
1357 battmgr->bat_psy = devm_power_supply_register(dev, &sc8280xp_bat_psy_desc, &psy_cfg);
1358 if (IS_ERR(battmgr->bat_psy))
1359 return dev_err_probe(dev, PTR_ERR(battmgr->bat_psy),
1360 "failed to register battery power supply\n");
1361
1362 battmgr->ac_psy = devm_power_supply_register(dev, &sc8280xp_ac_psy_desc, &psy_cfg_supply);
1363 if (IS_ERR(battmgr->ac_psy))
1364 return dev_err_probe(dev, PTR_ERR(battmgr->ac_psy),
1365 "failed to register AC power supply\n");
1366
1367 battmgr->usb_psy = devm_power_supply_register(dev, &sc8280xp_usb_psy_desc, &psy_cfg_supply);
1368 if (IS_ERR(battmgr->usb_psy))
1369 return dev_err_probe(dev, PTR_ERR(battmgr->usb_psy),
1370 "failed to register USB power supply\n");
1371
1372 battmgr->wls_psy = devm_power_supply_register(dev, &sc8280xp_wls_psy_desc, &psy_cfg_supply);
1373 if (IS_ERR(battmgr->wls_psy))
1374 return dev_err_probe(dev, PTR_ERR(battmgr->wls_psy),
1375 "failed to register wireless charing power supply\n");
1376 } else {
1377 battmgr->bat_psy = devm_power_supply_register(dev, &sm8350_bat_psy_desc, &psy_cfg);
1378 if (IS_ERR(battmgr->bat_psy))
1379 return dev_err_probe(dev, PTR_ERR(battmgr->bat_psy),
1380 "failed to register battery power supply\n");
1381
1382 battmgr->usb_psy = devm_power_supply_register(dev, &sm8350_usb_psy_desc, &psy_cfg_supply);
1383 if (IS_ERR(battmgr->usb_psy))
1384 return dev_err_probe(dev, PTR_ERR(battmgr->usb_psy),
1385 "failed to register USB power supply\n");
1386
1387 battmgr->wls_psy = devm_power_supply_register(dev, &sm8350_wls_psy_desc, &psy_cfg_supply);
1388 if (IS_ERR(battmgr->wls_psy))
1389 return dev_err_probe(dev, PTR_ERR(battmgr->wls_psy),
1390 "failed to register wireless charing power supply\n");
1391 }
1392
1393 battmgr->client = devm_pmic_glink_client_alloc(dev, PMIC_GLINK_OWNER_BATTMGR,
1394 qcom_battmgr_callback,
1395 qcom_battmgr_pdr_notify,
1396 battmgr);
1397 if (IS_ERR(battmgr->client))
1398 return PTR_ERR(battmgr->client);
1399
1400 pmic_glink_client_register(battmgr->client);
1401
1402 return 0;
1403 }
1404
1405 static const struct auxiliary_device_id qcom_battmgr_id_table[] = {
1406 { .name = "pmic_glink.power-supply", },
1407 {},
1408 };
1409 MODULE_DEVICE_TABLE(auxiliary, qcom_battmgr_id_table);
1410
1411 static struct auxiliary_driver qcom_battmgr_driver = {
1412 .name = "pmic_glink_power_supply",
1413 .probe = qcom_battmgr_probe,
1414 .id_table = qcom_battmgr_id_table,
1415 };
1416
1417 module_auxiliary_driver(qcom_battmgr_driver);
1418
1419 MODULE_DESCRIPTION("Qualcomm PMIC GLINK battery manager driver");
1420 MODULE_LICENSE("GPL");
1421