1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Power supply driver for testing.
4 *
5 * Copyright 2010 Anton Vorontsov <cbouatmailru@gmail.com>
6 *
7 * Dynamic module parameter code from the Virtual Battery Driver
8 * Copyright (C) 2008 Pylone, Inc.
9 * By: Masashi YOKOTA <yokota@pylone.jp>
10 * Originally found here:
11 * http://downloads.pylone.jp/src/virtual_battery/virtual_battery-0.0.1.tar.bz2
12 */
13
14 #include <linux/kernel.h>
15 #include <linux/module.h>
16 #include <linux/power_supply.h>
17 #include <linux/errno.h>
18 #include <linux/delay.h>
19 #include <generated/utsrelease.h>
20
21 enum test_power_id {
22 TEST_AC,
23 TEST_BATTERY,
24 TEST_USB,
25 TEST_POWER_NUM,
26 };
27
28 static int ac_online = 1;
29 static int usb_online = 1;
30 static int battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
31 static int battery_health = POWER_SUPPLY_HEALTH_GOOD;
32 static int battery_present = 1; /* true */
33 static int battery_technology = POWER_SUPPLY_TECHNOLOGY_LION;
34 static int battery_capacity = 50;
35 static int battery_voltage = 3300;
36 static int battery_charge_counter = -1000;
37 static int battery_current = -1600;
38 static enum power_supply_charge_behaviour battery_charge_behaviour =
39 POWER_SUPPLY_CHARGE_BEHAVIOUR_AUTO;
40 static enum power_supply_charge_type battery_charge_types =
41 POWER_SUPPLY_CHARGE_TYPE_STANDARD;
42 static bool battery_extension;
43
44 static bool module_initialized;
45
test_power_get_ac_property(struct power_supply * psy,enum power_supply_property psp,union power_supply_propval * val)46 static int test_power_get_ac_property(struct power_supply *psy,
47 enum power_supply_property psp,
48 union power_supply_propval *val)
49 {
50 switch (psp) {
51 case POWER_SUPPLY_PROP_ONLINE:
52 val->intval = ac_online;
53 break;
54 default:
55 return -EINVAL;
56 }
57 return 0;
58 }
59
test_power_get_usb_property(struct power_supply * psy,enum power_supply_property psp,union power_supply_propval * val)60 static int test_power_get_usb_property(struct power_supply *psy,
61 enum power_supply_property psp,
62 union power_supply_propval *val)
63 {
64 switch (psp) {
65 case POWER_SUPPLY_PROP_ONLINE:
66 val->intval = usb_online;
67 break;
68 default:
69 return -EINVAL;
70 }
71 return 0;
72 }
73
test_power_get_battery_property(struct power_supply * psy,enum power_supply_property psp,union power_supply_propval * val)74 static int test_power_get_battery_property(struct power_supply *psy,
75 enum power_supply_property psp,
76 union power_supply_propval *val)
77 {
78 switch (psp) {
79 case POWER_SUPPLY_PROP_MODEL_NAME:
80 val->strval = "Test battery";
81 break;
82 case POWER_SUPPLY_PROP_MANUFACTURER:
83 val->strval = "Linux";
84 break;
85 case POWER_SUPPLY_PROP_SERIAL_NUMBER:
86 val->strval = UTS_RELEASE;
87 break;
88 case POWER_SUPPLY_PROP_STATUS:
89 val->intval = battery_status;
90 break;
91 case POWER_SUPPLY_PROP_CHARGE_TYPE:
92 val->intval = battery_charge_types;
93 break;
94 case POWER_SUPPLY_PROP_HEALTH:
95 val->intval = battery_health;
96 break;
97 case POWER_SUPPLY_PROP_PRESENT:
98 val->intval = battery_present;
99 break;
100 case POWER_SUPPLY_PROP_TECHNOLOGY:
101 val->intval = battery_technology;
102 break;
103 case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
104 val->intval = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
105 break;
106 case POWER_SUPPLY_PROP_CAPACITY:
107 case POWER_SUPPLY_PROP_CHARGE_NOW:
108 val->intval = battery_capacity;
109 break;
110 case POWER_SUPPLY_PROP_CHARGE_COUNTER:
111 val->intval = battery_charge_counter;
112 break;
113 case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
114 case POWER_SUPPLY_PROP_CHARGE_FULL:
115 val->intval = 100;
116 break;
117 case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:
118 case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW:
119 val->intval = 3600;
120 break;
121 case POWER_SUPPLY_PROP_TEMP:
122 val->intval = 26;
123 break;
124 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
125 val->intval = battery_voltage;
126 break;
127 case POWER_SUPPLY_PROP_CURRENT_AVG:
128 case POWER_SUPPLY_PROP_CURRENT_NOW:
129 val->intval = battery_current;
130 break;
131 case POWER_SUPPLY_PROP_CHARGE_BEHAVIOUR:
132 val->intval = battery_charge_behaviour;
133 break;
134 case POWER_SUPPLY_PROP_CHARGE_TYPES:
135 val->intval = battery_charge_types;
136 break;
137 default:
138 pr_info("%s: some properties deliberately report errors.\n",
139 __func__);
140 return -EINVAL;
141 }
142 return 0;
143 }
144
test_power_battery_property_is_writeable(struct power_supply * psy,enum power_supply_property psp)145 static int test_power_battery_property_is_writeable(struct power_supply *psy,
146 enum power_supply_property psp)
147 {
148 return psp == POWER_SUPPLY_PROP_CHARGE_BEHAVIOUR || psp == POWER_SUPPLY_PROP_CHARGE_TYPES;
149 }
150
test_power_set_battery_property(struct power_supply * psy,enum power_supply_property psp,const union power_supply_propval * val)151 static int test_power_set_battery_property(struct power_supply *psy,
152 enum power_supply_property psp,
153 const union power_supply_propval *val)
154 {
155 switch (psp) {
156 case POWER_SUPPLY_PROP_CHARGE_BEHAVIOUR:
157 if (val->intval < 0 ||
158 val->intval >= BITS_PER_TYPE(typeof(psy->desc->charge_behaviours)) ||
159 !(BIT(val->intval) & psy->desc->charge_behaviours)) {
160 return -EINVAL;
161 }
162 battery_charge_behaviour = val->intval;
163 break;
164 case POWER_SUPPLY_PROP_CHARGE_TYPES:
165 if (val->intval < 0 ||
166 val->intval >= BITS_PER_TYPE(typeof(psy->desc->charge_types)) ||
167 !(BIT(val->intval) & psy->desc->charge_types)) {
168 return -EINVAL;
169 }
170 battery_charge_types = val->intval;
171 break;
172 default:
173 return -EINVAL;
174 }
175 return 0;
176 }
177
178 static enum power_supply_property test_power_ac_props[] = {
179 POWER_SUPPLY_PROP_ONLINE,
180 };
181
182 static enum power_supply_property test_power_battery_props[] = {
183 POWER_SUPPLY_PROP_STATUS,
184 POWER_SUPPLY_PROP_CHARGE_TYPE,
185 POWER_SUPPLY_PROP_HEALTH,
186 POWER_SUPPLY_PROP_PRESENT,
187 POWER_SUPPLY_PROP_TECHNOLOGY,
188 POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
189 POWER_SUPPLY_PROP_CHARGE_FULL,
190 POWER_SUPPLY_PROP_CHARGE_NOW,
191 POWER_SUPPLY_PROP_CHARGE_COUNTER,
192 POWER_SUPPLY_PROP_CAPACITY,
193 POWER_SUPPLY_PROP_CAPACITY_LEVEL,
194 POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
195 POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
196 POWER_SUPPLY_PROP_MODEL_NAME,
197 POWER_SUPPLY_PROP_MANUFACTURER,
198 POWER_SUPPLY_PROP_SERIAL_NUMBER,
199 POWER_SUPPLY_PROP_TEMP,
200 POWER_SUPPLY_PROP_VOLTAGE_NOW,
201 POWER_SUPPLY_PROP_CURRENT_AVG,
202 POWER_SUPPLY_PROP_CURRENT_NOW,
203 POWER_SUPPLY_PROP_CHARGE_BEHAVIOUR,
204 POWER_SUPPLY_PROP_CHARGE_TYPES,
205 };
206
207 static char *test_power_ac_supplied_to[] = {
208 "test_battery",
209 };
210
211 static struct power_supply *test_power_supplies[TEST_POWER_NUM];
212
213 static const struct power_supply_desc test_power_desc[] = {
214 [TEST_AC] = {
215 .name = "test_ac",
216 .type = POWER_SUPPLY_TYPE_MAINS,
217 .properties = test_power_ac_props,
218 .num_properties = ARRAY_SIZE(test_power_ac_props),
219 .get_property = test_power_get_ac_property,
220 },
221 [TEST_BATTERY] = {
222 .name = "test_battery",
223 .type = POWER_SUPPLY_TYPE_BATTERY,
224 .properties = test_power_battery_props,
225 .num_properties = ARRAY_SIZE(test_power_battery_props),
226 .get_property = test_power_get_battery_property,
227 .set_property = test_power_set_battery_property,
228 .property_is_writeable = test_power_battery_property_is_writeable,
229 .charge_behaviours = BIT(POWER_SUPPLY_CHARGE_BEHAVIOUR_AUTO)
230 | BIT(POWER_SUPPLY_CHARGE_BEHAVIOUR_INHIBIT_CHARGE)
231 | BIT(POWER_SUPPLY_CHARGE_BEHAVIOUR_INHIBIT_CHARGE_AWAKE)
232 | BIT(POWER_SUPPLY_CHARGE_BEHAVIOUR_FORCE_DISCHARGE),
233 .charge_types = BIT(POWER_SUPPLY_CHARGE_TYPE_STANDARD)
234 | BIT(POWER_SUPPLY_CHARGE_TYPE_LONGLIFE)
235 },
236 [TEST_USB] = {
237 .name = "test_usb",
238 .type = POWER_SUPPLY_TYPE_USB,
239 .properties = test_power_ac_props,
240 .num_properties = ARRAY_SIZE(test_power_ac_props),
241 .get_property = test_power_get_usb_property,
242 },
243 };
244
245 static const struct power_supply_config test_power_configs[] = {
246 {
247 /* test_ac */
248 .supplied_to = test_power_ac_supplied_to,
249 .num_supplicants = ARRAY_SIZE(test_power_ac_supplied_to),
250 }, {
251 /* test_battery */
252 }, {
253 /* test_usb */
254 .supplied_to = test_power_ac_supplied_to,
255 .num_supplicants = ARRAY_SIZE(test_power_ac_supplied_to),
256 },
257 };
258
259 static int test_power_battery_extmanufacture_year = 1234;
260 static int test_power_battery_exttemp_max = 1000;
261 static const enum power_supply_property test_power_battery_extprops[] = {
262 POWER_SUPPLY_PROP_MANUFACTURE_YEAR,
263 POWER_SUPPLY_PROP_TEMP_MAX,
264 };
265
test_power_battery_extget_property(struct power_supply * psy,const struct power_supply_ext * ext,void * ext_data,enum power_supply_property psp,union power_supply_propval * val)266 static int test_power_battery_extget_property(struct power_supply *psy,
267 const struct power_supply_ext *ext,
268 void *ext_data,
269 enum power_supply_property psp,
270 union power_supply_propval *val)
271 {
272 switch (psp) {
273 case POWER_SUPPLY_PROP_MANUFACTURE_YEAR:
274 val->intval = test_power_battery_extmanufacture_year;
275 break;
276 case POWER_SUPPLY_PROP_TEMP_MAX:
277 val->intval = test_power_battery_exttemp_max;
278 break;
279 default:
280 return -EINVAL;
281 }
282 return 0;
283 }
284
test_power_battery_extset_property(struct power_supply * psy,const struct power_supply_ext * ext,void * ext_data,enum power_supply_property psp,const union power_supply_propval * val)285 static int test_power_battery_extset_property(struct power_supply *psy,
286 const struct power_supply_ext *ext,
287 void *ext_data,
288 enum power_supply_property psp,
289 const union power_supply_propval *val)
290 {
291 switch (psp) {
292 case POWER_SUPPLY_PROP_MANUFACTURE_YEAR:
293 test_power_battery_extmanufacture_year = val->intval;
294 break;
295 case POWER_SUPPLY_PROP_TEMP_MAX:
296 test_power_battery_exttemp_max = val->intval;
297 break;
298 default:
299 return -EINVAL;
300 }
301 return 0;
302 }
303
test_power_battery_extproperty_is_writeable(struct power_supply * psy,const struct power_supply_ext * ext,void * ext_data,enum power_supply_property psp)304 static int test_power_battery_extproperty_is_writeable(struct power_supply *psy,
305 const struct power_supply_ext *ext,
306 void *ext_data,
307 enum power_supply_property psp)
308 {
309 return true;
310 }
311
312 static const struct power_supply_ext test_power_battery_ext = {
313 .name = "test_power",
314 .properties = test_power_battery_extprops,
315 .num_properties = ARRAY_SIZE(test_power_battery_extprops),
316 .get_property = test_power_battery_extget_property,
317 .set_property = test_power_battery_extset_property,
318 .property_is_writeable = test_power_battery_extproperty_is_writeable,
319 };
320
test_power_configure_battery_extension(bool enable)321 static void test_power_configure_battery_extension(bool enable)
322 {
323 struct power_supply *psy;
324
325 psy = test_power_supplies[TEST_BATTERY];
326
327 if (enable) {
328 if (power_supply_register_extension(psy, &test_power_battery_ext, &psy->dev,
329 NULL)) {
330 pr_err("registering battery extension failed\n");
331 return;
332 }
333 } else {
334 power_supply_unregister_extension(psy, &test_power_battery_ext);
335 }
336
337 battery_extension = enable;
338 }
339
test_power_init(void)340 static int __init test_power_init(void)
341 {
342 int i;
343 int ret;
344
345 BUILD_BUG_ON(TEST_POWER_NUM != ARRAY_SIZE(test_power_supplies));
346 BUILD_BUG_ON(TEST_POWER_NUM != ARRAY_SIZE(test_power_configs));
347
348 for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++) {
349 test_power_supplies[i] = power_supply_register(NULL,
350 &test_power_desc[i],
351 &test_power_configs[i]);
352 if (IS_ERR(test_power_supplies[i])) {
353 pr_err("%s: failed to register %s\n", __func__,
354 test_power_desc[i].name);
355 ret = PTR_ERR(test_power_supplies[i]);
356 goto failed;
357 }
358 }
359
360 test_power_configure_battery_extension(true);
361
362 module_initialized = true;
363 return 0;
364 failed:
365 while (--i >= 0)
366 power_supply_unregister(test_power_supplies[i]);
367 return ret;
368 }
369 module_init(test_power_init);
370
test_power_exit(void)371 static void __exit test_power_exit(void)
372 {
373 int i;
374
375 /* Let's see how we handle changes... */
376 ac_online = 0;
377 usb_online = 0;
378 battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
379 for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++)
380 power_supply_changed(test_power_supplies[i]);
381 pr_info("%s: 'changed' event sent, sleeping for 10 seconds...\n",
382 __func__);
383 ssleep(10);
384
385 for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++)
386 power_supply_unregister(test_power_supplies[i]);
387
388 module_initialized = false;
389 }
390 module_exit(test_power_exit);
391
392
393
394 #define MAX_KEYLENGTH 256
395 struct battery_property_map {
396 int value;
397 char const *key;
398 };
399
400 static struct battery_property_map map_ac_online[] = {
401 { 0, "off" },
402 { 1, "on" },
403 { -1, NULL },
404 };
405
406 static struct battery_property_map map_status[] = {
407 { POWER_SUPPLY_STATUS_CHARGING, "charging" },
408 { POWER_SUPPLY_STATUS_DISCHARGING, "discharging" },
409 { POWER_SUPPLY_STATUS_NOT_CHARGING, "not-charging" },
410 { POWER_SUPPLY_STATUS_FULL, "full" },
411 { -1, NULL },
412 };
413
414 static struct battery_property_map map_health[] = {
415 { POWER_SUPPLY_HEALTH_GOOD, "good" },
416 { POWER_SUPPLY_HEALTH_OVERHEAT, "overheat" },
417 { POWER_SUPPLY_HEALTH_DEAD, "dead" },
418 { POWER_SUPPLY_HEALTH_OVERVOLTAGE, "overvoltage" },
419 { POWER_SUPPLY_HEALTH_UNSPEC_FAILURE, "failure" },
420 { -1, NULL },
421 };
422
423 static struct battery_property_map map_present[] = {
424 { 0, "false" },
425 { 1, "true" },
426 { -1, NULL },
427 };
428
429 static struct battery_property_map map_technology[] = {
430 { POWER_SUPPLY_TECHNOLOGY_NiMH, "NiMH" },
431 { POWER_SUPPLY_TECHNOLOGY_LION, "LION" },
432 { POWER_SUPPLY_TECHNOLOGY_LIPO, "LIPO" },
433 { POWER_SUPPLY_TECHNOLOGY_LiFe, "LiFe" },
434 { POWER_SUPPLY_TECHNOLOGY_NiCd, "NiCd" },
435 { POWER_SUPPLY_TECHNOLOGY_LiMn, "LiMn" },
436 { -1, NULL },
437 };
438
439
map_get_value(struct battery_property_map * map,const char * key,int def_val)440 static int map_get_value(struct battery_property_map *map, const char *key,
441 int def_val)
442 {
443 char buf[MAX_KEYLENGTH];
444 int cr;
445
446 strscpy(buf, key, MAX_KEYLENGTH);
447
448 cr = strnlen(buf, MAX_KEYLENGTH) - 1;
449 if (cr < 0)
450 return def_val;
451 if (buf[cr] == '\n')
452 buf[cr] = '\0';
453
454 while (map->key) {
455 if (strncasecmp(map->key, buf, MAX_KEYLENGTH) == 0)
456 return map->value;
457 map++;
458 }
459
460 return def_val;
461 }
462
463
map_get_key(struct battery_property_map * map,int value,const char * def_key)464 static const char *map_get_key(struct battery_property_map *map, int value,
465 const char *def_key)
466 {
467 while (map->key) {
468 if (map->value == value)
469 return map->key;
470 map++;
471 }
472
473 return def_key;
474 }
475
signal_power_supply_changed(struct power_supply * psy)476 static inline void signal_power_supply_changed(struct power_supply *psy)
477 {
478 if (module_initialized)
479 power_supply_changed(psy);
480 }
481
param_set_ac_online(const char * key,const struct kernel_param * kp)482 static int param_set_ac_online(const char *key, const struct kernel_param *kp)
483 {
484 ac_online = map_get_value(map_ac_online, key, ac_online);
485 signal_power_supply_changed(test_power_supplies[TEST_AC]);
486 return 0;
487 }
488
param_get_ac_online(char * buffer,const struct kernel_param * kp)489 static int param_get_ac_online(char *buffer, const struct kernel_param *kp)
490 {
491 return sprintf(buffer, "%s\n",
492 map_get_key(map_ac_online, ac_online, "unknown"));
493 }
494
param_set_usb_online(const char * key,const struct kernel_param * kp)495 static int param_set_usb_online(const char *key, const struct kernel_param *kp)
496 {
497 usb_online = map_get_value(map_ac_online, key, usb_online);
498 signal_power_supply_changed(test_power_supplies[TEST_USB]);
499 return 0;
500 }
501
param_get_usb_online(char * buffer,const struct kernel_param * kp)502 static int param_get_usb_online(char *buffer, const struct kernel_param *kp)
503 {
504 return sprintf(buffer, "%s\n",
505 map_get_key(map_ac_online, usb_online, "unknown"));
506 }
507
param_set_battery_status(const char * key,const struct kernel_param * kp)508 static int param_set_battery_status(const char *key,
509 const struct kernel_param *kp)
510 {
511 battery_status = map_get_value(map_status, key, battery_status);
512 signal_power_supply_changed(test_power_supplies[TEST_BATTERY]);
513 return 0;
514 }
515
param_get_battery_status(char * buffer,const struct kernel_param * kp)516 static int param_get_battery_status(char *buffer, const struct kernel_param *kp)
517 {
518 return sprintf(buffer, "%s\n",
519 map_get_key(map_ac_online, battery_status, "unknown"));
520 }
521
param_set_battery_health(const char * key,const struct kernel_param * kp)522 static int param_set_battery_health(const char *key,
523 const struct kernel_param *kp)
524 {
525 battery_health = map_get_value(map_health, key, battery_health);
526 signal_power_supply_changed(test_power_supplies[TEST_BATTERY]);
527 return 0;
528 }
529
param_get_battery_health(char * buffer,const struct kernel_param * kp)530 static int param_get_battery_health(char *buffer, const struct kernel_param *kp)
531 {
532 return sprintf(buffer, "%s\n",
533 map_get_key(map_ac_online, battery_health, "unknown"));
534 }
535
param_set_battery_present(const char * key,const struct kernel_param * kp)536 static int param_set_battery_present(const char *key,
537 const struct kernel_param *kp)
538 {
539 battery_present = map_get_value(map_present, key, battery_present);
540 signal_power_supply_changed(test_power_supplies[TEST_AC]);
541 return 0;
542 }
543
param_get_battery_present(char * buffer,const struct kernel_param * kp)544 static int param_get_battery_present(char *buffer,
545 const struct kernel_param *kp)
546 {
547 return sprintf(buffer, "%s\n",
548 map_get_key(map_ac_online, battery_present, "unknown"));
549 }
550
param_set_battery_technology(const char * key,const struct kernel_param * kp)551 static int param_set_battery_technology(const char *key,
552 const struct kernel_param *kp)
553 {
554 battery_technology = map_get_value(map_technology, key,
555 battery_technology);
556 signal_power_supply_changed(test_power_supplies[TEST_BATTERY]);
557 return 0;
558 }
559
param_get_battery_technology(char * buffer,const struct kernel_param * kp)560 static int param_get_battery_technology(char *buffer,
561 const struct kernel_param *kp)
562 {
563 return sprintf(buffer, "%s\n",
564 map_get_key(map_ac_online, battery_technology,
565 "unknown"));
566 }
567
param_set_battery_capacity(const char * key,const struct kernel_param * kp)568 static int param_set_battery_capacity(const char *key,
569 const struct kernel_param *kp)
570 {
571 int tmp;
572
573 if (1 != sscanf(key, "%d", &tmp))
574 return -EINVAL;
575
576 battery_capacity = tmp;
577 signal_power_supply_changed(test_power_supplies[TEST_BATTERY]);
578 return 0;
579 }
580
581 #define param_get_battery_capacity param_get_int
582
param_set_battery_voltage(const char * key,const struct kernel_param * kp)583 static int param_set_battery_voltage(const char *key,
584 const struct kernel_param *kp)
585 {
586 int tmp;
587
588 if (1 != sscanf(key, "%d", &tmp))
589 return -EINVAL;
590
591 battery_voltage = tmp;
592 signal_power_supply_changed(test_power_supplies[TEST_BATTERY]);
593 return 0;
594 }
595
596 #define param_get_battery_voltage param_get_int
597
param_set_battery_charge_counter(const char * key,const struct kernel_param * kp)598 static int param_set_battery_charge_counter(const char *key,
599 const struct kernel_param *kp)
600 {
601 int tmp;
602
603 if (1 != sscanf(key, "%d", &tmp))
604 return -EINVAL;
605
606 battery_charge_counter = tmp;
607 signal_power_supply_changed(test_power_supplies[TEST_BATTERY]);
608 return 0;
609 }
610
611 #define param_get_battery_charge_counter param_get_int
612
param_set_battery_current(const char * key,const struct kernel_param * kp)613 static int param_set_battery_current(const char *key,
614 const struct kernel_param *kp)
615 {
616 int tmp;
617
618 if (1 != sscanf(key, "%d", &tmp))
619 return -EINVAL;
620
621 battery_current = tmp;
622 signal_power_supply_changed(test_power_supplies[TEST_BATTERY]);
623 return 0;
624 }
625
626 #define param_get_battery_current param_get_int
627
param_set_battery_extension(const char * key,const struct kernel_param * kp)628 static int param_set_battery_extension(const char *key,
629 const struct kernel_param *kp)
630 {
631 bool prev_battery_extension;
632 int ret;
633
634 prev_battery_extension = battery_extension;
635
636 ret = param_set_bool(key, kp);
637 if (ret)
638 return ret;
639
640 if (prev_battery_extension != battery_extension)
641 test_power_configure_battery_extension(battery_extension);
642
643 return 0;
644 }
645
646 #define param_get_battery_extension param_get_bool
647
648 static const struct kernel_param_ops param_ops_ac_online = {
649 .set = param_set_ac_online,
650 .get = param_get_ac_online,
651 };
652
653 static const struct kernel_param_ops param_ops_usb_online = {
654 .set = param_set_usb_online,
655 .get = param_get_usb_online,
656 };
657
658 static const struct kernel_param_ops param_ops_battery_status = {
659 .set = param_set_battery_status,
660 .get = param_get_battery_status,
661 };
662
663 static const struct kernel_param_ops param_ops_battery_present = {
664 .set = param_set_battery_present,
665 .get = param_get_battery_present,
666 };
667
668 static const struct kernel_param_ops param_ops_battery_technology = {
669 .set = param_set_battery_technology,
670 .get = param_get_battery_technology,
671 };
672
673 static const struct kernel_param_ops param_ops_battery_health = {
674 .set = param_set_battery_health,
675 .get = param_get_battery_health,
676 };
677
678 static const struct kernel_param_ops param_ops_battery_capacity = {
679 .set = param_set_battery_capacity,
680 .get = param_get_battery_capacity,
681 };
682
683 static const struct kernel_param_ops param_ops_battery_voltage = {
684 .set = param_set_battery_voltage,
685 .get = param_get_battery_voltage,
686 };
687
688 static const struct kernel_param_ops param_ops_battery_charge_counter = {
689 .set = param_set_battery_charge_counter,
690 .get = param_get_battery_charge_counter,
691 };
692
693 static const struct kernel_param_ops param_ops_battery_current = {
694 .set = param_set_battery_current,
695 .get = param_get_battery_current,
696 };
697
698 static const struct kernel_param_ops param_ops_battery_extension = {
699 .set = param_set_battery_extension,
700 .get = param_get_battery_extension,
701 };
702
703 #define param_check_ac_online(name, p) __param_check(name, p, void);
704 #define param_check_usb_online(name, p) __param_check(name, p, void);
705 #define param_check_battery_status(name, p) __param_check(name, p, void);
706 #define param_check_battery_present(name, p) __param_check(name, p, void);
707 #define param_check_battery_technology(name, p) __param_check(name, p, void);
708 #define param_check_battery_health(name, p) __param_check(name, p, void);
709 #define param_check_battery_capacity(name, p) __param_check(name, p, void);
710 #define param_check_battery_voltage(name, p) __param_check(name, p, void);
711 #define param_check_battery_charge_counter(name, p) __param_check(name, p, void);
712 #define param_check_battery_current(name, p) __param_check(name, p, void);
713 #define param_check_battery_extension(name, p) __param_check(name, p, void);
714
715
716 module_param(ac_online, ac_online, 0644);
717 MODULE_PARM_DESC(ac_online, "AC charging state <on|off>");
718
719 module_param(usb_online, usb_online, 0644);
720 MODULE_PARM_DESC(usb_online, "USB charging state <on|off>");
721
722 module_param(battery_status, battery_status, 0644);
723 MODULE_PARM_DESC(battery_status,
724 "battery status <charging|discharging|not-charging|full>");
725
726 module_param(battery_present, battery_present, 0644);
727 MODULE_PARM_DESC(battery_present,
728 "battery presence state <good|overheat|dead|overvoltage|failure>");
729
730 module_param(battery_technology, battery_technology, 0644);
731 MODULE_PARM_DESC(battery_technology,
732 "battery technology <NiMH|LION|LIPO|LiFe|NiCd|LiMn>");
733
734 module_param(battery_health, battery_health, 0644);
735 MODULE_PARM_DESC(battery_health,
736 "battery health state <good|overheat|dead|overvoltage|failure>");
737
738 module_param(battery_capacity, battery_capacity, 0644);
739 MODULE_PARM_DESC(battery_capacity, "battery capacity (percentage)");
740
741 module_param(battery_voltage, battery_voltage, 0644);
742 MODULE_PARM_DESC(battery_voltage, "battery voltage (millivolts)");
743
744 module_param(battery_charge_counter, battery_charge_counter, 0644);
745 MODULE_PARM_DESC(battery_charge_counter,
746 "battery charge counter (microampere-hours)");
747
748 module_param(battery_current, battery_current, 0644);
749 MODULE_PARM_DESC(battery_current, "battery current (milliampere)");
750
751 module_param(battery_extension, battery_extension, 0644);
752 MODULE_PARM_DESC(battery_extension, "battery extension");
753
754 MODULE_DESCRIPTION("Power supply driver for testing");
755 MODULE_AUTHOR("Anton Vorontsov <cbouatmailru@gmail.com>");
756 MODULE_LICENSE("GPL");
757