Commit | Line | Data |
---|---|---|
a1e50fd4 AV |
1 | /* |
2 | * Power supply driver for testing. | |
3 | * | |
4 | * Copyright 2010 Anton Vorontsov <cbouatmailru@gmail.com> | |
5 | * | |
f17ef9b2 JS |
6 | * Dynamic module parameter code from the Virtual Battery Driver |
7 | * Copyright (C) 2008 Pylone, Inc. | |
8 | * By: Masashi YOKOTA <yokota@pylone.jp> | |
9 | * Originally found here: | |
10 | * http://downloads.pylone.jp/src/virtual_battery/virtual_battery-0.0.1.tar.bz2 | |
11 | * | |
a1e50fd4 AV |
12 | * This program is free software; you can redistribute it and/or modify |
13 | * it under the terms of the GNU General Public License version 2 as | |
14 | * published by the Free Software Foundation. | |
15 | */ | |
16 | ||
17 | #include <linux/kernel.h> | |
18 | #include <linux/module.h> | |
19 | #include <linux/power_supply.h> | |
20 | #include <linux/errno.h> | |
21 | #include <linux/delay.h> | |
22 | #include <linux/vermagic.h> | |
23 | ||
f17ef9b2 | 24 | static int ac_online = 1; |
73847375 | 25 | static int usb_online = 1; |
f17ef9b2 JS |
26 | static int battery_status = POWER_SUPPLY_STATUS_DISCHARGING; |
27 | static int battery_health = POWER_SUPPLY_HEALTH_GOOD; | |
28 | static int battery_present = 1; /* true */ | |
29 | static int battery_technology = POWER_SUPPLY_TECHNOLOGY_LION; | |
30 | static int battery_capacity = 50; | |
a1e50fd4 AV |
31 | |
32 | static int test_power_get_ac_property(struct power_supply *psy, | |
33 | enum power_supply_property psp, | |
34 | union power_supply_propval *val) | |
35 | { | |
36 | switch (psp) { | |
37 | case POWER_SUPPLY_PROP_ONLINE: | |
f17ef9b2 | 38 | val->intval = ac_online; |
a1e50fd4 AV |
39 | break; |
40 | default: | |
41 | return -EINVAL; | |
42 | } | |
43 | return 0; | |
44 | } | |
45 | ||
73847375 DES |
46 | static int test_power_get_usb_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 = usb_online; | |
53 | break; | |
54 | default: | |
55 | return -EINVAL; | |
56 | } | |
57 | return 0; | |
58 | } | |
59 | ||
a1e50fd4 AV |
60 | static int test_power_get_battery_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_MODEL_NAME: | |
66 | val->strval = "Test battery"; | |
67 | break; | |
68 | case POWER_SUPPLY_PROP_MANUFACTURER: | |
69 | val->strval = "Linux"; | |
70 | break; | |
71 | case POWER_SUPPLY_PROP_SERIAL_NUMBER: | |
72 | val->strval = UTS_RELEASE; | |
73 | break; | |
74 | case POWER_SUPPLY_PROP_STATUS: | |
f17ef9b2 | 75 | val->intval = battery_status; |
a1e50fd4 AV |
76 | break; |
77 | case POWER_SUPPLY_PROP_CHARGE_TYPE: | |
78 | val->intval = POWER_SUPPLY_CHARGE_TYPE_FAST; | |
79 | break; | |
80 | case POWER_SUPPLY_PROP_HEALTH: | |
f17ef9b2 JS |
81 | val->intval = battery_health; |
82 | break; | |
83 | case POWER_SUPPLY_PROP_PRESENT: | |
84 | val->intval = battery_present; | |
a1e50fd4 AV |
85 | break; |
86 | case POWER_SUPPLY_PROP_TECHNOLOGY: | |
f17ef9b2 | 87 | val->intval = battery_technology; |
a1e50fd4 AV |
88 | break; |
89 | case POWER_SUPPLY_PROP_CAPACITY_LEVEL: | |
90 | val->intval = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; | |
91 | break; | |
92 | case POWER_SUPPLY_PROP_CAPACITY: | |
f17ef9b2 JS |
93 | case POWER_SUPPLY_PROP_CHARGE_NOW: |
94 | val->intval = battery_capacity; | |
95 | break; | |
96 | case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: | |
97 | case POWER_SUPPLY_PROP_CHARGE_FULL: | |
98 | val->intval = 100; | |
a1e50fd4 AV |
99 | break; |
100 | case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG: | |
101 | case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW: | |
102 | val->intval = 3600; | |
103 | break; | |
104 | default: | |
105 | pr_info("%s: some properties deliberately report errors.\n", | |
106 | __func__); | |
107 | return -EINVAL; | |
108 | } | |
109 | return 0; | |
110 | } | |
111 | ||
112 | static enum power_supply_property test_power_ac_props[] = { | |
113 | POWER_SUPPLY_PROP_ONLINE, | |
114 | }; | |
115 | ||
116 | static enum power_supply_property test_power_battery_props[] = { | |
117 | POWER_SUPPLY_PROP_STATUS, | |
118 | POWER_SUPPLY_PROP_CHARGE_TYPE, | |
119 | POWER_SUPPLY_PROP_HEALTH, | |
f17ef9b2 | 120 | POWER_SUPPLY_PROP_PRESENT, |
a1e50fd4 | 121 | POWER_SUPPLY_PROP_TECHNOLOGY, |
f17ef9b2 | 122 | POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, |
a1e50fd4 | 123 | POWER_SUPPLY_PROP_CHARGE_FULL, |
f17ef9b2 | 124 | POWER_SUPPLY_PROP_CHARGE_NOW, |
a1e50fd4 AV |
125 | POWER_SUPPLY_PROP_CAPACITY, |
126 | POWER_SUPPLY_PROP_CAPACITY_LEVEL, | |
127 | POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, | |
128 | POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, | |
129 | POWER_SUPPLY_PROP_MODEL_NAME, | |
130 | POWER_SUPPLY_PROP_MANUFACTURER, | |
131 | POWER_SUPPLY_PROP_SERIAL_NUMBER, | |
132 | }; | |
133 | ||
134 | static char *test_power_ac_supplied_to[] = { | |
135 | "test_battery", | |
136 | }; | |
137 | ||
138 | static struct power_supply test_power_supplies[] = { | |
139 | { | |
140 | .name = "test_ac", | |
141 | .type = POWER_SUPPLY_TYPE_MAINS, | |
142 | .supplied_to = test_power_ac_supplied_to, | |
143 | .num_supplicants = ARRAY_SIZE(test_power_ac_supplied_to), | |
144 | .properties = test_power_ac_props, | |
145 | .num_properties = ARRAY_SIZE(test_power_ac_props), | |
146 | .get_property = test_power_get_ac_property, | |
147 | }, { | |
148 | .name = "test_battery", | |
149 | .type = POWER_SUPPLY_TYPE_BATTERY, | |
150 | .properties = test_power_battery_props, | |
151 | .num_properties = ARRAY_SIZE(test_power_battery_props), | |
152 | .get_property = test_power_get_battery_property, | |
73847375 DES |
153 | }, { |
154 | .name = "test_usb", | |
155 | .type = POWER_SUPPLY_TYPE_USB, | |
156 | .supplied_to = test_power_ac_supplied_to, | |
157 | .num_supplicants = ARRAY_SIZE(test_power_ac_supplied_to), | |
158 | .properties = test_power_ac_props, | |
159 | .num_properties = ARRAY_SIZE(test_power_ac_props), | |
160 | .get_property = test_power_get_usb_property, | |
a1e50fd4 AV |
161 | }, |
162 | }; | |
163 | ||
f17ef9b2 | 164 | |
a1e50fd4 AV |
165 | static int __init test_power_init(void) |
166 | { | |
167 | int i; | |
168 | int ret; | |
169 | ||
170 | for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++) { | |
171 | ret = power_supply_register(NULL, &test_power_supplies[i]); | |
172 | if (ret) { | |
173 | pr_err("%s: failed to register %s\n", __func__, | |
174 | test_power_supplies[i].name); | |
175 | goto failed; | |
176 | } | |
177 | } | |
178 | ||
179 | return 0; | |
180 | failed: | |
181 | while (--i >= 0) | |
182 | power_supply_unregister(&test_power_supplies[i]); | |
183 | return ret; | |
184 | } | |
185 | module_init(test_power_init); | |
186 | ||
187 | static void __exit test_power_exit(void) | |
188 | { | |
189 | int i; | |
190 | ||
191 | /* Let's see how we handle changes... */ | |
f17ef9b2 | 192 | ac_online = 0; |
73847375 | 193 | usb_online = 0; |
f17ef9b2 | 194 | battery_status = POWER_SUPPLY_STATUS_DISCHARGING; |
a1e50fd4 AV |
195 | for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++) |
196 | power_supply_changed(&test_power_supplies[i]); | |
197 | pr_info("%s: 'changed' event sent, sleeping for 10 seconds...\n", | |
198 | __func__); | |
199 | ssleep(10); | |
200 | ||
201 | for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++) | |
202 | power_supply_unregister(&test_power_supplies[i]); | |
203 | } | |
204 | module_exit(test_power_exit); | |
205 | ||
f17ef9b2 JS |
206 | |
207 | ||
208 | #define MAX_KEYLENGTH 256 | |
209 | struct battery_property_map { | |
210 | int value; | |
211 | char const *key; | |
212 | }; | |
213 | ||
214 | static struct battery_property_map map_ac_online[] = { | |
215 | { 0, "on" }, | |
216 | { 1, "off" }, | |
217 | { -1, NULL }, | |
218 | }; | |
219 | ||
220 | static struct battery_property_map map_status[] = { | |
221 | { POWER_SUPPLY_STATUS_CHARGING, "charging" }, | |
222 | { POWER_SUPPLY_STATUS_DISCHARGING, "discharging" }, | |
223 | { POWER_SUPPLY_STATUS_NOT_CHARGING, "not-charging" }, | |
224 | { POWER_SUPPLY_STATUS_FULL, "full" }, | |
225 | { -1, NULL }, | |
226 | }; | |
227 | ||
228 | static struct battery_property_map map_health[] = { | |
229 | { POWER_SUPPLY_HEALTH_GOOD, "good" }, | |
230 | { POWER_SUPPLY_HEALTH_OVERHEAT, "overheat" }, | |
231 | { POWER_SUPPLY_HEALTH_DEAD, "dead" }, | |
232 | { POWER_SUPPLY_HEALTH_OVERVOLTAGE, "overvoltage" }, | |
233 | { POWER_SUPPLY_HEALTH_UNSPEC_FAILURE, "failure" }, | |
234 | { -1, NULL }, | |
235 | }; | |
236 | ||
237 | static struct battery_property_map map_present[] = { | |
238 | { 0, "false" }, | |
239 | { 1, "true" }, | |
240 | { -1, NULL }, | |
241 | }; | |
242 | ||
243 | static struct battery_property_map map_technology[] = { | |
244 | { POWER_SUPPLY_TECHNOLOGY_NiMH, "NiMH" }, | |
245 | { POWER_SUPPLY_TECHNOLOGY_LION, "LION" }, | |
246 | { POWER_SUPPLY_TECHNOLOGY_LIPO, "LIPO" }, | |
247 | { POWER_SUPPLY_TECHNOLOGY_LiFe, "LiFe" }, | |
248 | { POWER_SUPPLY_TECHNOLOGY_NiCd, "NiCd" }, | |
249 | { POWER_SUPPLY_TECHNOLOGY_LiMn, "LiMn" }, | |
250 | { -1, NULL }, | |
251 | }; | |
252 | ||
253 | ||
254 | static int map_get_value(struct battery_property_map *map, const char *key, | |
255 | int def_val) | |
256 | { | |
257 | char buf[MAX_KEYLENGTH]; | |
258 | int cr; | |
259 | ||
260 | strncpy(buf, key, MAX_KEYLENGTH); | |
261 | buf[MAX_KEYLENGTH-1] = '\0'; | |
262 | ||
263 | cr = strnlen(buf, MAX_KEYLENGTH) - 1; | |
264 | if (buf[cr] == '\n') | |
265 | buf[cr] = '\0'; | |
266 | ||
267 | while (map->key) { | |
268 | if (strncasecmp(map->key, buf, MAX_KEYLENGTH) == 0) | |
269 | return map->value; | |
270 | map++; | |
271 | } | |
272 | ||
273 | return def_val; | |
274 | } | |
275 | ||
276 | ||
277 | static const char *map_get_key(struct battery_property_map *map, int value, | |
278 | const char *def_key) | |
279 | { | |
280 | while (map->key) { | |
281 | if (map->value == value) | |
282 | return map->key; | |
283 | map++; | |
284 | } | |
285 | ||
286 | return def_key; | |
287 | } | |
288 | ||
289 | static int param_set_ac_online(const char *key, const struct kernel_param *kp) | |
290 | { | |
291 | ac_online = map_get_value(map_ac_online, key, ac_online); | |
292 | power_supply_changed(&test_power_supplies[0]); | |
293 | return 0; | |
294 | } | |
295 | ||
296 | static int param_get_ac_online(char *buffer, const struct kernel_param *kp) | |
297 | { | |
298 | strcpy(buffer, map_get_key(map_ac_online, ac_online, "unknown")); | |
299 | return strlen(buffer); | |
300 | } | |
301 | ||
73847375 DES |
302 | static int param_set_usb_online(const char *key, const struct kernel_param *kp) |
303 | { | |
304 | usb_online = map_get_value(map_ac_online, key, usb_online); | |
305 | power_supply_changed(&test_power_supplies[2]); | |
306 | return 0; | |
307 | } | |
308 | ||
309 | static int param_get_usb_online(char *buffer, const struct kernel_param *kp) | |
310 | { | |
311 | strcpy(buffer, map_get_key(map_ac_online, usb_online, "unknown")); | |
312 | return strlen(buffer); | |
313 | } | |
314 | ||
f17ef9b2 JS |
315 | static int param_set_battery_status(const char *key, |
316 | const struct kernel_param *kp) | |
317 | { | |
318 | battery_status = map_get_value(map_status, key, battery_status); | |
319 | power_supply_changed(&test_power_supplies[1]); | |
320 | return 0; | |
321 | } | |
322 | ||
323 | static int param_get_battery_status(char *buffer, const struct kernel_param *kp) | |
324 | { | |
325 | strcpy(buffer, map_get_key(map_status, battery_status, "unknown")); | |
326 | return strlen(buffer); | |
327 | } | |
328 | ||
329 | static int param_set_battery_health(const char *key, | |
330 | const struct kernel_param *kp) | |
331 | { | |
332 | battery_health = map_get_value(map_health, key, battery_health); | |
333 | power_supply_changed(&test_power_supplies[1]); | |
334 | return 0; | |
335 | } | |
336 | ||
337 | static int param_get_battery_health(char *buffer, const struct kernel_param *kp) | |
338 | { | |
339 | strcpy(buffer, map_get_key(map_health, battery_health, "unknown")); | |
340 | return strlen(buffer); | |
341 | } | |
342 | ||
343 | static int param_set_battery_present(const char *key, | |
344 | const struct kernel_param *kp) | |
345 | { | |
346 | battery_present = map_get_value(map_present, key, battery_present); | |
347 | power_supply_changed(&test_power_supplies[0]); | |
348 | return 0; | |
349 | } | |
350 | ||
351 | static int param_get_battery_present(char *buffer, | |
352 | const struct kernel_param *kp) | |
353 | { | |
354 | strcpy(buffer, map_get_key(map_present, battery_present, "unknown")); | |
355 | return strlen(buffer); | |
356 | } | |
357 | ||
358 | static int param_set_battery_technology(const char *key, | |
359 | const struct kernel_param *kp) | |
360 | { | |
361 | battery_technology = map_get_value(map_technology, key, | |
362 | battery_technology); | |
363 | power_supply_changed(&test_power_supplies[1]); | |
364 | return 0; | |
365 | } | |
366 | ||
367 | static int param_get_battery_technology(char *buffer, | |
368 | const struct kernel_param *kp) | |
369 | { | |
370 | strcpy(buffer, | |
371 | map_get_key(map_technology, battery_technology, "unknown")); | |
372 | return strlen(buffer); | |
373 | } | |
374 | ||
375 | static int param_set_battery_capacity(const char *key, | |
376 | const struct kernel_param *kp) | |
377 | { | |
378 | int tmp; | |
379 | ||
380 | if (1 != sscanf(key, "%d", &tmp)) | |
381 | return -EINVAL; | |
382 | ||
383 | battery_capacity = tmp; | |
384 | power_supply_changed(&test_power_supplies[1]); | |
385 | return 0; | |
386 | } | |
387 | ||
388 | #define param_get_battery_capacity param_get_int | |
389 | ||
f17ef9b2 JS |
390 | static struct kernel_param_ops param_ops_ac_online = { |
391 | .set = param_set_ac_online, | |
392 | .get = param_get_ac_online, | |
393 | }; | |
394 | ||
73847375 DES |
395 | static struct kernel_param_ops param_ops_usb_online = { |
396 | .set = param_set_usb_online, | |
397 | .get = param_get_usb_online, | |
398 | }; | |
399 | ||
f17ef9b2 JS |
400 | static struct kernel_param_ops param_ops_battery_status = { |
401 | .set = param_set_battery_status, | |
402 | .get = param_get_battery_status, | |
403 | }; | |
404 | ||
405 | static struct kernel_param_ops param_ops_battery_present = { | |
406 | .set = param_set_battery_present, | |
407 | .get = param_get_battery_present, | |
408 | }; | |
409 | ||
410 | static struct kernel_param_ops param_ops_battery_technology = { | |
411 | .set = param_set_battery_technology, | |
412 | .get = param_get_battery_technology, | |
413 | }; | |
414 | ||
415 | static struct kernel_param_ops param_ops_battery_health = { | |
416 | .set = param_set_battery_health, | |
417 | .get = param_get_battery_health, | |
418 | }; | |
419 | ||
420 | static struct kernel_param_ops param_ops_battery_capacity = { | |
421 | .set = param_set_battery_capacity, | |
422 | .get = param_get_battery_capacity, | |
423 | }; | |
424 | ||
425 | ||
426 | #define param_check_ac_online(name, p) __param_check(name, p, void); | |
73847375 | 427 | #define param_check_usb_online(name, p) __param_check(name, p, void); |
f17ef9b2 JS |
428 | #define param_check_battery_status(name, p) __param_check(name, p, void); |
429 | #define param_check_battery_present(name, p) __param_check(name, p, void); | |
430 | #define param_check_battery_technology(name, p) __param_check(name, p, void); | |
431 | #define param_check_battery_health(name, p) __param_check(name, p, void); | |
432 | #define param_check_battery_capacity(name, p) __param_check(name, p, void); | |
433 | ||
434 | ||
435 | module_param(ac_online, ac_online, 0644); | |
436 | MODULE_PARM_DESC(ac_online, "AC charging state <on|off>"); | |
437 | ||
73847375 DES |
438 | module_param(usb_online, usb_online, 0644); |
439 | MODULE_PARM_DESC(usb_online, "USB charging state <on|off>"); | |
440 | ||
f17ef9b2 JS |
441 | module_param(battery_status, battery_status, 0644); |
442 | MODULE_PARM_DESC(battery_status, | |
443 | "battery status <charging|discharging|not-charging|full>"); | |
444 | ||
445 | module_param(battery_present, battery_present, 0644); | |
446 | MODULE_PARM_DESC(battery_present, | |
447 | "battery presence state <good|overheat|dead|overvoltage|failure>"); | |
448 | ||
449 | module_param(battery_technology, battery_technology, 0644); | |
450 | MODULE_PARM_DESC(battery_technology, | |
451 | "battery technology <NiMH|LION|LIPO|LiFe|NiCd|LiMn>"); | |
452 | ||
453 | module_param(battery_health, battery_health, 0644); | |
454 | MODULE_PARM_DESC(battery_health, | |
455 | "battery health state <good|overheat|dead|overvoltage|failure>"); | |
456 | ||
457 | module_param(battery_capacity, battery_capacity, 0644); | |
458 | MODULE_PARM_DESC(battery_capacity, "battery capacity (percentage)"); | |
459 | ||
460 | ||
a1e50fd4 AV |
461 | MODULE_DESCRIPTION("Power supply driver for testing"); |
462 | MODULE_AUTHOR("Anton Vorontsov <cbouatmailru@gmail.com>"); | |
463 | MODULE_LICENSE("GPL"); |