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
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 -ENODEV;
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 -ENODEV;
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 -ENODEV;
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
qcom_battmgr_wls_sm8350_update(struct qcom_battmgr * battmgr,enum power_supply_property psp)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
qcom_battmgr_wls_get_property(struct power_supply * psy,enum power_supply_property psp,union power_supply_propval * val)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 -ENODEV;
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
qcom_battmgr_notification(struct qcom_battmgr * battmgr,const struct qcom_battmgr_message * msg,int len)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
qcom_battmgr_sc8280xp_strcpy(char * dest,const char * src)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
qcom_battmgr_sc8280xp_parse_technology(const char * chemistry)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
qcom_battmgr_sc8280xp_convert_temp(unsigned int temperature)985 static unsigned int qcom_battmgr_sc8280xp_convert_temp(unsigned int temperature)
986 {
987 return DIV_ROUND_CLOSEST(temperature, 10);
988 }
989
qcom_battmgr_sc8280xp_callback(struct qcom_battmgr * battmgr,const struct qcom_battmgr_message * resp,size_t len)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 if (payload_len != sizeof(resp->info)) {
1011 dev_warn(battmgr->dev,
1012 "invalid payload length for battery information request: %zd\n",
1013 payload_len);
1014 battmgr->error = -ENODATA;
1015 return;
1016 }
1017
1018 battmgr->unit = le32_to_cpu(resp->info.power_unit);
1019
1020 battmgr->info.present = true;
1021 battmgr->info.design_capacity = le32_to_cpu(resp->info.design_capacity) * 1000;
1022 battmgr->info.last_full_capacity = le32_to_cpu(resp->info.last_full_capacity) * 1000;
1023 battmgr->info.voltage_max_design = le32_to_cpu(resp->info.design_voltage) * 1000;
1024 battmgr->info.capacity_low = le32_to_cpu(resp->info.capacity_low) * 1000;
1025 battmgr->info.cycle_count = le32_to_cpu(resp->info.cycle_count);
1026 qcom_battmgr_sc8280xp_strcpy(battmgr->info.model_number, resp->info.model_number);
1027 qcom_battmgr_sc8280xp_strcpy(battmgr->info.serial_number, resp->info.serial_number);
1028 battmgr->info.technology = qcom_battmgr_sc8280xp_parse_technology(resp->info.battery_chemistry);
1029 qcom_battmgr_sc8280xp_strcpy(battmgr->info.oem_info, resp->info.oem_info);
1030 battmgr->info.day = resp->info.day;
1031 battmgr->info.month = resp->info.month;
1032 battmgr->info.year = le16_to_cpu(resp->info.year);
1033 break;
1034 case BATTMGR_BAT_STATUS:
1035 if (payload_len != sizeof(resp->status)) {
1036 dev_warn(battmgr->dev,
1037 "invalid payload length for battery status request: %zd\n",
1038 payload_len);
1039 battmgr->error = -ENODATA;
1040 return;
1041 }
1042
1043 state = le32_to_cpu(resp->status.battery_state);
1044 if (state & BIT(0))
1045 battmgr->status.status = POWER_SUPPLY_STATUS_DISCHARGING;
1046 else if (state & BIT(1))
1047 battmgr->status.status = POWER_SUPPLY_STATUS_CHARGING;
1048 else
1049 battmgr->status.status = POWER_SUPPLY_STATUS_NOT_CHARGING;
1050
1051 battmgr->status.capacity = le32_to_cpu(resp->status.capacity) * 1000;
1052 battmgr->status.power_now = le32_to_cpu(resp->status.rate) * 1000;
1053 battmgr->status.voltage_now = le32_to_cpu(resp->status.battery_voltage) * 1000;
1054 battmgr->status.temperature = qcom_battmgr_sc8280xp_convert_temp(le32_to_cpu(resp->status.temperature));
1055
1056 source = le32_to_cpu(resp->status.charging_source);
1057 battmgr->ac.online = source == BATTMGR_CHARGING_SOURCE_AC;
1058 battmgr->usb.online = source == BATTMGR_CHARGING_SOURCE_USB;
1059 battmgr->wireless.online = source == BATTMGR_CHARGING_SOURCE_WIRELESS;
1060 break;
1061 case BATTMGR_BAT_DISCHARGE_TIME:
1062 battmgr->status.discharge_time = le32_to_cpu(resp->time);
1063 break;
1064 case BATTMGR_BAT_CHARGE_TIME:
1065 battmgr->status.charge_time = le32_to_cpu(resp->time);
1066 break;
1067 default:
1068 dev_warn(battmgr->dev, "unknown message %#x\n", opcode);
1069 break;
1070 }
1071
1072 complete(&battmgr->ack);
1073 }
1074
qcom_battmgr_sm8350_callback(struct qcom_battmgr * battmgr,const struct qcom_battmgr_message * resp,size_t len)1075 static void qcom_battmgr_sm8350_callback(struct qcom_battmgr *battmgr,
1076 const struct qcom_battmgr_message *resp,
1077 size_t len)
1078 {
1079 unsigned int property;
1080 unsigned int opcode = le32_to_cpu(resp->hdr.opcode);
1081 size_t payload_len = len - sizeof(struct pmic_glink_hdr);
1082 unsigned int val;
1083
1084 if (payload_len < sizeof(__le32)) {
1085 dev_warn(battmgr->dev, "invalid payload length for %#x: %zd\n",
1086 opcode, len);
1087 return;
1088 }
1089
1090 switch (opcode) {
1091 case BATTMGR_BAT_PROPERTY_GET:
1092 property = le32_to_cpu(resp->intval.property);
1093 if (property == BATT_MODEL_NAME) {
1094 if (payload_len != sizeof(resp->strval)) {
1095 dev_warn(battmgr->dev,
1096 "invalid payload length for BATT_MODEL_NAME request: %zd\n",
1097 payload_len);
1098 battmgr->error = -ENODATA;
1099 return;
1100 }
1101 } else {
1102 if (payload_len != sizeof(resp->intval)) {
1103 dev_warn(battmgr->dev,
1104 "invalid payload length for %#x request: %zd\n",
1105 property, payload_len);
1106 battmgr->error = -ENODATA;
1107 return;
1108 }
1109
1110 battmgr->error = le32_to_cpu(resp->intval.result);
1111 if (battmgr->error)
1112 goto out_complete;
1113 }
1114
1115 switch (property) {
1116 case BATT_STATUS:
1117 battmgr->status.status = le32_to_cpu(resp->intval.value);
1118 break;
1119 case BATT_HEALTH:
1120 battmgr->status.health = le32_to_cpu(resp->intval.value);
1121 break;
1122 case BATT_PRESENT:
1123 battmgr->info.present = le32_to_cpu(resp->intval.value);
1124 break;
1125 case BATT_CHG_TYPE:
1126 battmgr->info.charge_type = le32_to_cpu(resp->intval.value);
1127 break;
1128 case BATT_CAPACITY:
1129 battmgr->status.percent = le32_to_cpu(resp->intval.value) / 100;
1130 break;
1131 case BATT_VOLT_OCV:
1132 battmgr->status.voltage_ocv = le32_to_cpu(resp->intval.value);
1133 break;
1134 case BATT_VOLT_NOW:
1135 battmgr->status.voltage_now = le32_to_cpu(resp->intval.value);
1136 break;
1137 case BATT_VOLT_MAX:
1138 battmgr->info.voltage_max = le32_to_cpu(resp->intval.value);
1139 break;
1140 case BATT_CURR_NOW:
1141 battmgr->status.current_now = le32_to_cpu(resp->intval.value);
1142 break;
1143 case BATT_TEMP:
1144 val = le32_to_cpu(resp->intval.value);
1145 battmgr->status.temperature = DIV_ROUND_CLOSEST(val, 10);
1146 break;
1147 case BATT_TECHNOLOGY:
1148 battmgr->info.technology = le32_to_cpu(resp->intval.value);
1149 break;
1150 case BATT_CHG_COUNTER:
1151 battmgr->info.charge_count = le32_to_cpu(resp->intval.value);
1152 break;
1153 case BATT_CYCLE_COUNT:
1154 battmgr->info.cycle_count = le32_to_cpu(resp->intval.value);
1155 break;
1156 case BATT_CHG_FULL_DESIGN:
1157 battmgr->info.design_capacity = le32_to_cpu(resp->intval.value);
1158 break;
1159 case BATT_CHG_FULL:
1160 battmgr->info.last_full_capacity = le32_to_cpu(resp->intval.value);
1161 break;
1162 case BATT_MODEL_NAME:
1163 strscpy(battmgr->info.model_number, resp->strval.model, BATTMGR_STRING_LEN);
1164 break;
1165 case BATT_TTF_AVG:
1166 battmgr->status.charge_time = le32_to_cpu(resp->intval.value);
1167 break;
1168 case BATT_TTE_AVG:
1169 battmgr->status.discharge_time = le32_to_cpu(resp->intval.value);
1170 break;
1171 case BATT_POWER_NOW:
1172 battmgr->status.power_now = le32_to_cpu(resp->intval.value);
1173 break;
1174 default:
1175 dev_warn(battmgr->dev, "unknown property %#x\n", property);
1176 break;
1177 }
1178 break;
1179 case BATTMGR_USB_PROPERTY_GET:
1180 property = le32_to_cpu(resp->intval.property);
1181 if (payload_len != sizeof(resp->intval)) {
1182 dev_warn(battmgr->dev,
1183 "invalid payload length for %#x request: %zd\n",
1184 property, payload_len);
1185 battmgr->error = -ENODATA;
1186 return;
1187 }
1188
1189 battmgr->error = le32_to_cpu(resp->intval.result);
1190 if (battmgr->error)
1191 goto out_complete;
1192
1193 switch (property) {
1194 case USB_ONLINE:
1195 battmgr->usb.online = le32_to_cpu(resp->intval.value);
1196 break;
1197 case USB_VOLT_NOW:
1198 battmgr->usb.voltage_now = le32_to_cpu(resp->intval.value);
1199 break;
1200 case USB_VOLT_MAX:
1201 battmgr->usb.voltage_max = le32_to_cpu(resp->intval.value);
1202 break;
1203 case USB_CURR_NOW:
1204 battmgr->usb.current_now = le32_to_cpu(resp->intval.value);
1205 break;
1206 case USB_CURR_MAX:
1207 battmgr->usb.current_max = le32_to_cpu(resp->intval.value);
1208 break;
1209 case USB_INPUT_CURR_LIMIT:
1210 battmgr->usb.current_limit = le32_to_cpu(resp->intval.value);
1211 break;
1212 case USB_TYPE:
1213 battmgr->usb.usb_type = le32_to_cpu(resp->intval.value);
1214 break;
1215 default:
1216 dev_warn(battmgr->dev, "unknown property %#x\n", property);
1217 break;
1218 }
1219 break;
1220 case BATTMGR_WLS_PROPERTY_GET:
1221 property = le32_to_cpu(resp->intval.property);
1222 if (payload_len != sizeof(resp->intval)) {
1223 dev_warn(battmgr->dev,
1224 "invalid payload length for %#x request: %zd\n",
1225 property, payload_len);
1226 battmgr->error = -ENODATA;
1227 return;
1228 }
1229
1230 battmgr->error = le32_to_cpu(resp->intval.result);
1231 if (battmgr->error)
1232 goto out_complete;
1233
1234 switch (property) {
1235 case WLS_ONLINE:
1236 battmgr->wireless.online = le32_to_cpu(resp->intval.value);
1237 break;
1238 case WLS_VOLT_NOW:
1239 battmgr->wireless.voltage_now = le32_to_cpu(resp->intval.value);
1240 break;
1241 case WLS_VOLT_MAX:
1242 battmgr->wireless.voltage_max = le32_to_cpu(resp->intval.value);
1243 break;
1244 case WLS_CURR_NOW:
1245 battmgr->wireless.current_now = le32_to_cpu(resp->intval.value);
1246 break;
1247 case WLS_CURR_MAX:
1248 battmgr->wireless.current_max = le32_to_cpu(resp->intval.value);
1249 break;
1250 default:
1251 dev_warn(battmgr->dev, "unknown property %#x\n", property);
1252 break;
1253 }
1254 break;
1255 case BATTMGR_REQUEST_NOTIFICATION:
1256 battmgr->error = 0;
1257 break;
1258 default:
1259 dev_warn(battmgr->dev, "unknown message %#x\n", opcode);
1260 break;
1261 }
1262
1263 out_complete:
1264 complete(&battmgr->ack);
1265 }
1266
qcom_battmgr_callback(const void * data,size_t len,void * priv)1267 static void qcom_battmgr_callback(const void *data, size_t len, void *priv)
1268 {
1269 const struct pmic_glink_hdr *hdr = data;
1270 struct qcom_battmgr *battmgr = priv;
1271 unsigned int opcode = le32_to_cpu(hdr->opcode);
1272
1273 if (opcode == BATTMGR_NOTIFICATION)
1274 qcom_battmgr_notification(battmgr, data, len);
1275 else if (battmgr->variant == QCOM_BATTMGR_SC8280XP)
1276 qcom_battmgr_sc8280xp_callback(battmgr, data, len);
1277 else
1278 qcom_battmgr_sm8350_callback(battmgr, data, len);
1279 }
1280
qcom_battmgr_enable_worker(struct work_struct * work)1281 static void qcom_battmgr_enable_worker(struct work_struct *work)
1282 {
1283 struct qcom_battmgr *battmgr = container_of(work, struct qcom_battmgr, enable_work);
1284 struct qcom_battmgr_enable_request req = {
1285 .hdr.owner = cpu_to_le32(PMIC_GLINK_OWNER_BATTMGR),
1286 .hdr.type = cpu_to_le32(PMIC_GLINK_NOTIFY),
1287 .hdr.opcode = cpu_to_le32(BATTMGR_REQUEST_NOTIFICATION),
1288 };
1289 int ret;
1290
1291 ret = qcom_battmgr_request(battmgr, &req, sizeof(req));
1292 if (ret)
1293 dev_err(battmgr->dev, "failed to request power notifications\n");
1294 }
1295
qcom_battmgr_pdr_notify(void * priv,int state)1296 static void qcom_battmgr_pdr_notify(void *priv, int state)
1297 {
1298 struct qcom_battmgr *battmgr = priv;
1299
1300 if (state == SERVREG_SERVICE_STATE_UP) {
1301 battmgr->service_up = true;
1302 schedule_work(&battmgr->enable_work);
1303 } else {
1304 battmgr->service_up = false;
1305 }
1306 }
1307
1308 static const struct of_device_id qcom_battmgr_of_variants[] = {
1309 { .compatible = "qcom,sc8180x-pmic-glink", .data = (void *)QCOM_BATTMGR_SC8280XP },
1310 { .compatible = "qcom,sc8280xp-pmic-glink", .data = (void *)QCOM_BATTMGR_SC8280XP },
1311 /* Unmatched devices falls back to QCOM_BATTMGR_SM8350 */
1312 {}
1313 };
1314
1315 static char *qcom_battmgr_battery[] = { "battery" };
1316
qcom_battmgr_probe(struct auxiliary_device * adev,const struct auxiliary_device_id * id)1317 static int qcom_battmgr_probe(struct auxiliary_device *adev,
1318 const struct auxiliary_device_id *id)
1319 {
1320 struct power_supply_config psy_cfg_supply = {};
1321 struct power_supply_config psy_cfg = {};
1322 const struct of_device_id *match;
1323 struct qcom_battmgr *battmgr;
1324 struct device *dev = &adev->dev;
1325
1326 battmgr = devm_kzalloc(dev, sizeof(*battmgr), GFP_KERNEL);
1327 if (!battmgr)
1328 return -ENOMEM;
1329
1330 battmgr->dev = dev;
1331
1332 psy_cfg.drv_data = battmgr;
1333 psy_cfg.of_node = adev->dev.of_node;
1334
1335 psy_cfg_supply.drv_data = battmgr;
1336 psy_cfg_supply.of_node = adev->dev.of_node;
1337 psy_cfg_supply.supplied_to = qcom_battmgr_battery;
1338 psy_cfg_supply.num_supplicants = 1;
1339
1340 INIT_WORK(&battmgr->enable_work, qcom_battmgr_enable_worker);
1341 mutex_init(&battmgr->lock);
1342 init_completion(&battmgr->ack);
1343
1344 match = of_match_device(qcom_battmgr_of_variants, dev->parent);
1345 if (match)
1346 battmgr->variant = (unsigned long)match->data;
1347 else
1348 battmgr->variant = QCOM_BATTMGR_SM8350;
1349
1350 if (battmgr->variant == QCOM_BATTMGR_SC8280XP) {
1351 battmgr->bat_psy = devm_power_supply_register(dev, &sc8280xp_bat_psy_desc, &psy_cfg);
1352 if (IS_ERR(battmgr->bat_psy))
1353 return dev_err_probe(dev, PTR_ERR(battmgr->bat_psy),
1354 "failed to register battery power supply\n");
1355
1356 battmgr->ac_psy = devm_power_supply_register(dev, &sc8280xp_ac_psy_desc, &psy_cfg_supply);
1357 if (IS_ERR(battmgr->ac_psy))
1358 return dev_err_probe(dev, PTR_ERR(battmgr->ac_psy),
1359 "failed to register AC power supply\n");
1360
1361 battmgr->usb_psy = devm_power_supply_register(dev, &sc8280xp_usb_psy_desc, &psy_cfg_supply);
1362 if (IS_ERR(battmgr->usb_psy))
1363 return dev_err_probe(dev, PTR_ERR(battmgr->usb_psy),
1364 "failed to register USB power supply\n");
1365
1366 battmgr->wls_psy = devm_power_supply_register(dev, &sc8280xp_wls_psy_desc, &psy_cfg_supply);
1367 if (IS_ERR(battmgr->wls_psy))
1368 return dev_err_probe(dev, PTR_ERR(battmgr->wls_psy),
1369 "failed to register wireless charing power supply\n");
1370 } else {
1371 battmgr->bat_psy = devm_power_supply_register(dev, &sm8350_bat_psy_desc, &psy_cfg);
1372 if (IS_ERR(battmgr->bat_psy))
1373 return dev_err_probe(dev, PTR_ERR(battmgr->bat_psy),
1374 "failed to register battery power supply\n");
1375
1376 battmgr->usb_psy = devm_power_supply_register(dev, &sm8350_usb_psy_desc, &psy_cfg_supply);
1377 if (IS_ERR(battmgr->usb_psy))
1378 return dev_err_probe(dev, PTR_ERR(battmgr->usb_psy),
1379 "failed to register USB power supply\n");
1380
1381 battmgr->wls_psy = devm_power_supply_register(dev, &sm8350_wls_psy_desc, &psy_cfg_supply);
1382 if (IS_ERR(battmgr->wls_psy))
1383 return dev_err_probe(dev, PTR_ERR(battmgr->wls_psy),
1384 "failed to register wireless charing power supply\n");
1385 }
1386
1387 battmgr->client = devm_pmic_glink_register_client(dev,
1388 PMIC_GLINK_OWNER_BATTMGR,
1389 qcom_battmgr_callback,
1390 qcom_battmgr_pdr_notify,
1391 battmgr);
1392 return PTR_ERR_OR_ZERO(battmgr->client);
1393 }
1394
1395 static const struct auxiliary_device_id qcom_battmgr_id_table[] = {
1396 { .name = "pmic_glink.power-supply", },
1397 {},
1398 };
1399 MODULE_DEVICE_TABLE(auxiliary, qcom_battmgr_id_table);
1400
1401 static struct auxiliary_driver qcom_battmgr_driver = {
1402 .name = "pmic_glink_power_supply",
1403 .probe = qcom_battmgr_probe,
1404 .id_table = qcom_battmgr_id_table,
1405 };
1406
1407 module_auxiliary_driver(qcom_battmgr_driver);
1408
1409 MODULE_DESCRIPTION("Qualcomm PMIC GLINK battery manager driver");
1410 MODULE_LICENSE("GPL");
1411