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3f86b832 RT |
1 | /* |
2 | * acpi_sbs.c - ACPI Smart Battery System Driver ($Revision: 1.16 $) | |
3 | * | |
4 | * Copyright (c) 2005 Rich Townsend <rhdt@bartol.udel.edu> | |
5 | * | |
6 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or (at | |
11 | * your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License along | |
19 | * with this program; if not, write to the Free Software Foundation, Inc., | |
20 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. | |
21 | * | |
22 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
23 | */ | |
24 | ||
25 | #include <linux/init.h> | |
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <linux/kernel.h> | |
29 | #include <linux/proc_fs.h> | |
30 | #include <linux/seq_file.h> | |
31 | #include <asm/uaccess.h> | |
32 | #include <linux/acpi.h> | |
6d15702c | 33 | #include <linux/timer.h> |
72206233 | 34 | #include <linux/jiffies.h> |
3f86b832 RT |
35 | #include <linux/delay.h> |
36 | ||
91087dfa AS |
37 | #include "sbshc.h" |
38 | ||
3f86b832 RT |
39 | #define ACPI_SBS_COMPONENT 0x00080000 |
40 | #define ACPI_SBS_CLASS "sbs" | |
41 | #define ACPI_AC_CLASS "ac_adapter" | |
42 | #define ACPI_BATTERY_CLASS "battery" | |
3f86b832 RT |
43 | #define ACPI_SBS_DEVICE_NAME "Smart Battery System" |
44 | #define ACPI_SBS_FILE_INFO "info" | |
45 | #define ACPI_SBS_FILE_STATE "state" | |
46 | #define ACPI_SBS_FILE_ALARM "alarm" | |
47 | #define ACPI_BATTERY_DIR_NAME "BAT%i" | |
48 | #define ACPI_AC_DIR_NAME "AC0" | |
49 | #define ACPI_SBC_SMBUS_ADDR 0x9 | |
50 | #define ACPI_SBSM_SMBUS_ADDR 0xa | |
51 | #define ACPI_SB_SMBUS_ADDR 0xb | |
52 | #define ACPI_SBS_AC_NOTIFY_STATUS 0x80 | |
53 | #define ACPI_SBS_BATTERY_NOTIFY_STATUS 0x80 | |
54 | #define ACPI_SBS_BATTERY_NOTIFY_INFO 0x81 | |
55 | ||
56 | #define _COMPONENT ACPI_SBS_COMPONENT | |
57 | ||
f52fd66d | 58 | ACPI_MODULE_NAME("sbs"); |
3f86b832 RT |
59 | |
60 | MODULE_AUTHOR("Rich Townsend"); | |
61 | MODULE_DESCRIPTION("Smart Battery System ACPI interface driver"); | |
62 | MODULE_LICENSE("GPL"); | |
63 | ||
6d15702c VL |
64 | #define DEF_CAPACITY_UNIT 3 |
65 | #define MAH_CAPACITY_UNIT 1 | |
66 | #define MWH_CAPACITY_UNIT 2 | |
67 | #define CAPACITY_UNIT DEF_CAPACITY_UNIT | |
68 | ||
69 | #define REQUEST_UPDATE_MODE 1 | |
70 | #define QUEUE_UPDATE_MODE 2 | |
71 | ||
72 | #define DATA_TYPE_COMMON 0 | |
73 | #define DATA_TYPE_INFO 1 | |
74 | #define DATA_TYPE_STATE 2 | |
75 | #define DATA_TYPE_ALARM 3 | |
76 | #define DATA_TYPE_AC_STATE 4 | |
77 | ||
78 | extern struct proc_dir_entry *acpi_lock_ac_dir(void); | |
79 | extern struct proc_dir_entry *acpi_lock_battery_dir(void); | |
80 | extern void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir); | |
81 | extern void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir); | |
82 | ||
83 | #define MAX_SBS_BAT 4 | |
84 | #define ACPI_SBS_BLOCK_MAX 32 | |
85 | ||
72206233 | 86 | #define UPDATE_DELAY 10 |
3f86b832 | 87 | |
72206233 VL |
88 | /* 0 - every time, > 0 - by update_time */ |
89 | static unsigned int update_time = 120; | |
3f86b832 | 90 | |
72206233 | 91 | static unsigned int capacity_mode = CAPACITY_UNIT; |
3f86b832 | 92 | |
72206233 VL |
93 | module_param(update_time, uint, 0644); |
94 | module_param(capacity_mode, uint, 0444); | |
3f86b832 RT |
95 | |
96 | static int acpi_sbs_add(struct acpi_device *device); | |
97 | static int acpi_sbs_remove(struct acpi_device *device, int type); | |
72206233 | 98 | static int acpi_sbs_resume(struct acpi_device *device); |
3f86b832 | 99 | |
1ba90e3a | 100 | static const struct acpi_device_id sbs_device_ids[] = { |
91087dfa | 101 | {"ACPI0002", 0}, |
1ba90e3a TR |
102 | {"", 0}, |
103 | }; | |
104 | MODULE_DEVICE_TABLE(acpi, sbs_device_ids); | |
105 | ||
3f86b832 | 106 | static struct acpi_driver acpi_sbs_driver = { |
c2b6705b | 107 | .name = "sbs", |
3f86b832 | 108 | .class = ACPI_SBS_CLASS, |
1ba90e3a | 109 | .ids = sbs_device_ids, |
3f86b832 RT |
110 | .ops = { |
111 | .add = acpi_sbs_add, | |
112 | .remove = acpi_sbs_remove, | |
72206233 | 113 | .resume = acpi_sbs_resume, |
3f86b832 RT |
114 | }, |
115 | }; | |
116 | ||
72206233 VL |
117 | struct acpi_ac { |
118 | int ac_present; | |
119 | }; | |
120 | ||
3f86b832 RT |
121 | struct acpi_battery_info { |
122 | int capacity_mode; | |
123 | s16 full_charge_capacity; | |
124 | s16 design_capacity; | |
125 | s16 design_voltage; | |
126 | int vscale; | |
127 | int ipscale; | |
128 | s16 serial_number; | |
6d15702c VL |
129 | char manufacturer_name[ACPI_SBS_BLOCK_MAX + 3]; |
130 | char device_name[ACPI_SBS_BLOCK_MAX + 3]; | |
131 | char device_chemistry[ACPI_SBS_BLOCK_MAX + 3]; | |
3f86b832 RT |
132 | }; |
133 | ||
134 | struct acpi_battery_state { | |
135 | s16 voltage; | |
136 | s16 amperage; | |
137 | s16 remaining_capacity; | |
72206233 | 138 | s16 battery_state; |
3f86b832 RT |
139 | }; |
140 | ||
141 | struct acpi_battery_alarm { | |
142 | s16 remaining_capacity; | |
143 | }; | |
144 | ||
145 | struct acpi_battery { | |
146 | int alive; | |
3f86b832 RT |
147 | int id; |
148 | int init_state; | |
72206233 | 149 | int battery_present; |
3f86b832 RT |
150 | struct acpi_sbs *sbs; |
151 | struct acpi_battery_info info; | |
152 | struct acpi_battery_state state; | |
153 | struct acpi_battery_alarm alarm; | |
154 | struct proc_dir_entry *battery_entry; | |
155 | }; | |
156 | ||
157 | struct acpi_sbs { | |
3f86b832 | 158 | struct acpi_device *device; |
91087dfa | 159 | struct acpi_smb_hc *hc; |
72206233 | 160 | struct mutex mutex; |
3f86b832 RT |
161 | int sbsm_present; |
162 | int sbsm_batteries_supported; | |
3f86b832 | 163 | struct proc_dir_entry *ac_entry; |
72206233 | 164 | struct acpi_ac ac; |
3f86b832 | 165 | struct acpi_battery battery[MAX_SBS_BAT]; |
3f86b832 | 166 | int zombie; |
3f86b832 | 167 | struct timer_list update_timer; |
72206233 VL |
168 | int run_cnt; |
169 | int update_proc_flg; | |
3f86b832 RT |
170 | }; |
171 | ||
72206233 VL |
172 | static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type); |
173 | static void acpi_sbs_update_time(void *data); | |
174 | ||
72206233 VL |
175 | static int sbs_zombie(struct acpi_sbs *sbs) |
176 | { | |
177 | return (sbs->zombie); | |
178 | } | |
179 | ||
180 | static int sbs_mutex_lock(struct acpi_sbs *sbs) | |
181 | { | |
182 | if (sbs_zombie(sbs)) { | |
183 | return -ENODEV; | |
184 | } | |
185 | mutex_lock(&sbs->mutex); | |
186 | return 0; | |
187 | } | |
188 | ||
189 | static void sbs_mutex_unlock(struct acpi_sbs *sbs) | |
190 | { | |
191 | mutex_unlock(&sbs->mutex); | |
192 | } | |
193 | ||
3f86b832 RT |
194 | /* -------------------------------------------------------------------------- |
195 | Smart Battery System Management | |
196 | -------------------------------------------------------------------------- */ | |
197 | ||
72206233 VL |
198 | static int acpi_check_update_proc(struct acpi_sbs *sbs) |
199 | { | |
200 | acpi_status status = AE_OK; | |
201 | ||
202 | if (update_time == 0) { | |
203 | sbs->update_proc_flg = 0; | |
204 | return 0; | |
205 | } | |
206 | if (sbs->update_proc_flg == 0) { | |
207 | status = acpi_os_execute(OSL_GPE_HANDLER, | |
208 | acpi_sbs_update_time, sbs); | |
209 | if (status != AE_OK) { | |
210 | ACPI_EXCEPTION((AE_INFO, status, | |
211 | "acpi_os_execute() failed")); | |
212 | return 1; | |
213 | } | |
214 | sbs->update_proc_flg = 1; | |
215 | } | |
216 | return 0; | |
217 | } | |
3f86b832 | 218 | |
3f86b832 RT |
219 | static int acpi_battery_get_present(struct acpi_battery *battery) |
220 | { | |
221 | s16 state; | |
222 | int result = 0; | |
223 | int is_present = 0; | |
224 | ||
91087dfa AS |
225 | result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, |
226 | ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&state); | |
3f86b832 | 227 | if (result) { |
6845118b | 228 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 229 | "acpi_smbus_read() failed")); |
3f86b832 RT |
230 | } |
231 | if (!result) { | |
232 | is_present = (state & 0x000f) & (1 << battery->id); | |
233 | } | |
234 | battery->battery_present = is_present; | |
235 | ||
635227ee | 236 | return result; |
3f86b832 RT |
237 | } |
238 | ||
3f86b832 RT |
239 | static int acpi_battery_select(struct acpi_battery *battery) |
240 | { | |
6d15702c | 241 | struct acpi_sbs *sbs = battery->sbs; |
3f86b832 RT |
242 | int result = 0; |
243 | s16 state; | |
244 | int foo; | |
245 | ||
72206233 | 246 | if (sbs->sbsm_present) { |
3f86b832 RT |
247 | |
248 | /* Take special care not to knobble other nibbles of | |
249 | * state (aka selector_state), since | |
250 | * it causes charging to halt on SBSELs */ | |
251 | ||
252 | result = | |
91087dfa | 253 | acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&state); |
3f86b832 | 254 | if (result) { |
6845118b | 255 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 256 | "acpi_smbus_read() failed")); |
3f86b832 RT |
257 | goto end; |
258 | } | |
259 | ||
260 | foo = (state & 0x0fff) | (1 << (battery->id + 12)); | |
261 | result = | |
91087dfa | 262 | acpi_smbus_write(battery->sbs->hc, SMBUS_WRITE_WORD, ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&foo, 2); |
3f86b832 | 263 | if (result) { |
6845118b | 264 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 265 | "acpi_smbus_write() failed")); |
3f86b832 RT |
266 | goto end; |
267 | } | |
268 | } | |
269 | ||
270 | end: | |
635227ee | 271 | return result; |
3f86b832 RT |
272 | } |
273 | ||
274 | static int acpi_sbsm_get_info(struct acpi_sbs *sbs) | |
275 | { | |
3f86b832 RT |
276 | int result = 0; |
277 | s16 battery_system_info; | |
278 | ||
91087dfa AS |
279 | result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBSM_SMBUS_ADDR, 0x04, |
280 | (u8 *)&battery_system_info); | |
3f86b832 | 281 | if (result) { |
6845118b | 282 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 283 | "acpi_smbus_read() failed")); |
3f86b832 RT |
284 | goto end; |
285 | } | |
addad454 | 286 | sbs->sbsm_present = 1; |
3f86b832 RT |
287 | sbs->sbsm_batteries_supported = battery_system_info & 0x000f; |
288 | ||
289 | end: | |
290 | ||
635227ee | 291 | return result; |
3f86b832 RT |
292 | } |
293 | ||
294 | static int acpi_battery_get_info(struct acpi_battery *battery) | |
295 | { | |
3f86b832 RT |
296 | int result = 0; |
297 | s16 battery_mode; | |
298 | s16 specification_info; | |
299 | ||
91087dfa AS |
300 | result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x03, |
301 | (u8 *)&battery_mode); | |
3f86b832 | 302 | if (result) { |
6845118b | 303 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 304 | "acpi_smbus_read() failed")); |
3f86b832 RT |
305 | goto end; |
306 | } | |
307 | battery->info.capacity_mode = (battery_mode & 0x8000) >> 15; | |
308 | ||
91087dfa AS |
309 | result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x10, |
310 | (u8 *)&battery->info.full_charge_capacity); | |
3f86b832 | 311 | if (result) { |
6845118b | 312 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 313 | "acpi_smbus_read() failed")); |
3f86b832 RT |
314 | goto end; |
315 | } | |
316 | ||
91087dfa AS |
317 | result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x18, |
318 | (u8 *)&battery->info.design_capacity); | |
3f86b832 RT |
319 | |
320 | if (result) { | |
72206233 | 321 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 322 | "acpi_smbus_read() failed")); |
3f86b832 RT |
323 | goto end; |
324 | } | |
325 | ||
91087dfa AS |
326 | result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x19, |
327 | (u8 *)&battery->info.design_voltage); | |
3f86b832 | 328 | if (result) { |
6845118b | 329 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 330 | "acpi_smbus_read() failed")); |
3f86b832 RT |
331 | goto end; |
332 | } | |
333 | ||
91087dfa AS |
334 | result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x1a, |
335 | (u8 *)&specification_info); | |
3f86b832 | 336 | if (result) { |
6845118b | 337 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 338 | "acpi_smbus_read() failed")); |
3f86b832 RT |
339 | goto end; |
340 | } | |
341 | ||
342 | switch ((specification_info & 0x0f00) >> 8) { | |
343 | case 1: | |
344 | battery->info.vscale = 10; | |
345 | break; | |
346 | case 2: | |
347 | battery->info.vscale = 100; | |
348 | break; | |
349 | case 3: | |
350 | battery->info.vscale = 1000; | |
351 | break; | |
352 | default: | |
353 | battery->info.vscale = 1; | |
354 | } | |
355 | ||
356 | switch ((specification_info & 0xf000) >> 12) { | |
357 | case 1: | |
358 | battery->info.ipscale = 10; | |
359 | break; | |
360 | case 2: | |
361 | battery->info.ipscale = 100; | |
362 | break; | |
363 | case 3: | |
364 | battery->info.ipscale = 1000; | |
365 | break; | |
366 | default: | |
367 | battery->info.ipscale = 1; | |
368 | } | |
369 | ||
91087dfa AS |
370 | result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x1c, |
371 | (u8 *)&battery->info.serial_number); | |
3f86b832 | 372 | if (result) { |
72206233 | 373 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 374 | "acpi_smbus_read() failed")); |
3f86b832 RT |
375 | goto end; |
376 | } | |
377 | ||
91087dfa AS |
378 | result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x20, |
379 | (u8 *)battery->info.manufacturer_name); | |
3f86b832 | 380 | if (result) { |
6845118b VL |
381 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
382 | "acpi_sbs_read_str() failed")); | |
3f86b832 RT |
383 | goto end; |
384 | } | |
385 | ||
91087dfa AS |
386 | result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x21, |
387 | (u8 *)battery->info.device_name); | |
3f86b832 | 388 | if (result) { |
6845118b VL |
389 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
390 | "acpi_sbs_read_str() failed")); | |
3f86b832 RT |
391 | goto end; |
392 | } | |
393 | ||
91087dfa AS |
394 | result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x22, |
395 | (u8 *)battery->info.device_chemistry); | |
3f86b832 | 396 | if (result) { |
6845118b VL |
397 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
398 | "acpi_sbs_read_str() failed")); | |
3f86b832 RT |
399 | goto end; |
400 | } | |
401 | ||
402 | end: | |
635227ee | 403 | return result; |
3f86b832 RT |
404 | } |
405 | ||
3f86b832 RT |
406 | static int acpi_battery_get_state(struct acpi_battery *battery) |
407 | { | |
3f86b832 RT |
408 | int result = 0; |
409 | ||
91087dfa AS |
410 | result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x09, |
411 | (u8 *)&battery->state.voltage); | |
3f86b832 | 412 | if (result) { |
6845118b | 413 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 414 | "acpi_smbus_read() failed")); |
3f86b832 RT |
415 | goto end; |
416 | } | |
417 | ||
91087dfa AS |
418 | result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x0a, |
419 | (u8 *)&battery->state.amperage); | |
3f86b832 | 420 | if (result) { |
6845118b | 421 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 422 | "acpi_smbus_read() failed")); |
3f86b832 RT |
423 | goto end; |
424 | } | |
425 | ||
91087dfa AS |
426 | result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x0f, |
427 | (u8 *)&battery->state.remaining_capacity); | |
3f86b832 | 428 | if (result) { |
6845118b | 429 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 430 | "acpi_smbus_read() failed")); |
3f86b832 RT |
431 | goto end; |
432 | } | |
433 | ||
91087dfa AS |
434 | result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x16, |
435 | (u8 *)&battery->state.battery_state); | |
3f86b832 | 436 | if (result) { |
6845118b | 437 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 438 | "acpi_smbus_read() failed")); |
3f86b832 RT |
439 | goto end; |
440 | } | |
441 | ||
3f86b832 | 442 | end: |
635227ee | 443 | return result; |
3f86b832 RT |
444 | } |
445 | ||
446 | static int acpi_battery_get_alarm(struct acpi_battery *battery) | |
447 | { | |
3f86b832 RT |
448 | int result = 0; |
449 | ||
91087dfa AS |
450 | result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01, |
451 | (u8 *)&battery->alarm.remaining_capacity); | |
3f86b832 | 452 | if (result) { |
6845118b | 453 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 454 | "acpi_smbus_read() failed")); |
3f86b832 RT |
455 | goto end; |
456 | } | |
457 | ||
3f86b832 RT |
458 | end: |
459 | ||
635227ee | 460 | return result; |
3f86b832 RT |
461 | } |
462 | ||
463 | static int acpi_battery_set_alarm(struct acpi_battery *battery, | |
464 | unsigned long alarm) | |
465 | { | |
3f86b832 RT |
466 | int result = 0; |
467 | s16 battery_mode; | |
468 | int foo; | |
469 | ||
3f86b832 RT |
470 | result = acpi_battery_select(battery); |
471 | if (result) { | |
6845118b VL |
472 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
473 | "acpi_battery_select() failed")); | |
3f86b832 RT |
474 | goto end; |
475 | } | |
476 | ||
477 | /* If necessary, enable the alarm */ | |
478 | ||
479 | if (alarm > 0) { | |
480 | result = | |
91087dfa AS |
481 | acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x03, |
482 | (u8 *)&battery_mode); | |
3f86b832 | 483 | if (result) { |
6845118b | 484 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 485 | "acpi_smbus_read() failed")); |
3f86b832 RT |
486 | goto end; |
487 | } | |
488 | ||
91087dfa | 489 | battery_mode &= 0xbfff; |
3f86b832 | 490 | result = |
91087dfa AS |
491 | acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01, |
492 | (u8 *)&battery_mode, 2); | |
3f86b832 | 493 | if (result) { |
6845118b | 494 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 495 | "acpi_smbus_write() failed")); |
3f86b832 RT |
496 | goto end; |
497 | } | |
498 | } | |
499 | ||
500 | foo = alarm / (battery->info.capacity_mode ? 10 : 1); | |
91087dfa | 501 | result = acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01, (u8 *)&foo, 2); |
3f86b832 | 502 | if (result) { |
6845118b | 503 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 504 | "acpi_smbus_write() failed")); |
3f86b832 RT |
505 | goto end; |
506 | } | |
507 | ||
508 | end: | |
509 | ||
635227ee | 510 | return result; |
3f86b832 RT |
511 | } |
512 | ||
513 | static int acpi_battery_set_mode(struct acpi_battery *battery) | |
514 | { | |
515 | int result = 0; | |
516 | s16 battery_mode; | |
517 | ||
3f86b832 RT |
518 | if (capacity_mode == DEF_CAPACITY_UNIT) { |
519 | goto end; | |
520 | } | |
521 | ||
91087dfa AS |
522 | result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, |
523 | ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode); | |
3f86b832 | 524 | if (result) { |
6845118b | 525 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 526 | "acpi_smbus_read() failed")); |
3f86b832 RT |
527 | goto end; |
528 | } | |
529 | ||
530 | if (capacity_mode == MAH_CAPACITY_UNIT) { | |
531 | battery_mode &= 0x7fff; | |
532 | } else { | |
533 | battery_mode |= 0x8000; | |
534 | } | |
91087dfa AS |
535 | result = acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD, |
536 | ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode, 2); | |
3f86b832 | 537 | if (result) { |
6845118b | 538 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 539 | "acpi_smbus_write() failed")); |
3f86b832 RT |
540 | goto end; |
541 | } | |
542 | ||
91087dfa AS |
543 | result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, |
544 | ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode); | |
3f86b832 | 545 | if (result) { |
6845118b | 546 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 547 | "acpi_smbus_read() failed")); |
3f86b832 RT |
548 | goto end; |
549 | } | |
550 | ||
551 | end: | |
635227ee | 552 | return result; |
3f86b832 RT |
553 | } |
554 | ||
555 | static int acpi_battery_init(struct acpi_battery *battery) | |
556 | { | |
557 | int result = 0; | |
558 | ||
3f86b832 RT |
559 | result = acpi_battery_select(battery); |
560 | if (result) { | |
6845118b | 561 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
72206233 | 562 | "acpi_battery_select() failed")); |
3f86b832 RT |
563 | goto end; |
564 | } | |
565 | ||
566 | result = acpi_battery_set_mode(battery); | |
567 | if (result) { | |
6845118b VL |
568 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
569 | "acpi_battery_set_mode() failed")); | |
3f86b832 RT |
570 | goto end; |
571 | } | |
572 | ||
573 | result = acpi_battery_get_info(battery); | |
574 | if (result) { | |
6845118b VL |
575 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
576 | "acpi_battery_get_info() failed")); | |
3f86b832 RT |
577 | goto end; |
578 | } | |
579 | ||
580 | result = acpi_battery_get_state(battery); | |
581 | if (result) { | |
6845118b VL |
582 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
583 | "acpi_battery_get_state() failed")); | |
3f86b832 RT |
584 | goto end; |
585 | } | |
586 | ||
587 | result = acpi_battery_get_alarm(battery); | |
588 | if (result) { | |
6845118b VL |
589 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
590 | "acpi_battery_get_alarm() failed")); | |
3f86b832 RT |
591 | goto end; |
592 | } | |
593 | ||
594 | end: | |
635227ee | 595 | return result; |
3f86b832 RT |
596 | } |
597 | ||
598 | static int acpi_ac_get_present(struct acpi_sbs *sbs) | |
599 | { | |
3f86b832 RT |
600 | int result = 0; |
601 | s16 charger_status; | |
602 | ||
91087dfa AS |
603 | result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBC_SMBUS_ADDR, 0x13, |
604 | (u8 *)&charger_status); | |
3f86b832 RT |
605 | |
606 | if (result) { | |
6845118b | 607 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
91087dfa | 608 | "acpi_smbus_read() failed")); |
3f86b832 RT |
609 | goto end; |
610 | } | |
611 | ||
72206233 | 612 | sbs->ac.ac_present = (charger_status & 0x8000) >> 15; |
3f86b832 RT |
613 | |
614 | end: | |
615 | ||
635227ee | 616 | return result; |
3f86b832 RT |
617 | } |
618 | ||
619 | /* -------------------------------------------------------------------------- | |
620 | FS Interface (/proc/acpi) | |
621 | -------------------------------------------------------------------------- */ | |
622 | ||
623 | /* Generic Routines */ | |
624 | ||
625 | static int | |
626 | acpi_sbs_generic_add_fs(struct proc_dir_entry **dir, | |
627 | struct proc_dir_entry *parent_dir, | |
628 | char *dir_name, | |
629 | struct file_operations *info_fops, | |
630 | struct file_operations *state_fops, | |
631 | struct file_operations *alarm_fops, void *data) | |
632 | { | |
633 | struct proc_dir_entry *entry = NULL; | |
634 | ||
3f86b832 RT |
635 | if (!*dir) { |
636 | *dir = proc_mkdir(dir_name, parent_dir); | |
637 | if (!*dir) { | |
6845118b VL |
638 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
639 | "proc_mkdir() failed")); | |
635227ee | 640 | return -ENODEV; |
3f86b832 RT |
641 | } |
642 | (*dir)->owner = THIS_MODULE; | |
643 | } | |
644 | ||
645 | /* 'info' [R] */ | |
646 | if (info_fops) { | |
647 | entry = create_proc_entry(ACPI_SBS_FILE_INFO, S_IRUGO, *dir); | |
648 | if (!entry) { | |
6845118b VL |
649 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
650 | "create_proc_entry() failed")); | |
3f86b832 RT |
651 | } else { |
652 | entry->proc_fops = info_fops; | |
653 | entry->data = data; | |
654 | entry->owner = THIS_MODULE; | |
655 | } | |
656 | } | |
657 | ||
658 | /* 'state' [R] */ | |
659 | if (state_fops) { | |
660 | entry = create_proc_entry(ACPI_SBS_FILE_STATE, S_IRUGO, *dir); | |
661 | if (!entry) { | |
6845118b VL |
662 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
663 | "create_proc_entry() failed")); | |
3f86b832 RT |
664 | } else { |
665 | entry->proc_fops = state_fops; | |
666 | entry->data = data; | |
667 | entry->owner = THIS_MODULE; | |
668 | } | |
669 | } | |
670 | ||
671 | /* 'alarm' [R/W] */ | |
672 | if (alarm_fops) { | |
673 | entry = create_proc_entry(ACPI_SBS_FILE_ALARM, S_IRUGO, *dir); | |
674 | if (!entry) { | |
6845118b VL |
675 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
676 | "create_proc_entry() failed")); | |
3f86b832 RT |
677 | } else { |
678 | entry->proc_fops = alarm_fops; | |
679 | entry->data = data; | |
680 | entry->owner = THIS_MODULE; | |
681 | } | |
682 | } | |
683 | ||
635227ee | 684 | return 0; |
3f86b832 RT |
685 | } |
686 | ||
687 | static void | |
688 | acpi_sbs_generic_remove_fs(struct proc_dir_entry **dir, | |
689 | struct proc_dir_entry *parent_dir) | |
690 | { | |
3f86b832 RT |
691 | |
692 | if (*dir) { | |
693 | remove_proc_entry(ACPI_SBS_FILE_INFO, *dir); | |
694 | remove_proc_entry(ACPI_SBS_FILE_STATE, *dir); | |
695 | remove_proc_entry(ACPI_SBS_FILE_ALARM, *dir); | |
696 | remove_proc_entry((*dir)->name, parent_dir); | |
697 | *dir = NULL; | |
698 | } | |
699 | ||
700 | } | |
701 | ||
702 | /* Smart Battery Interface */ | |
703 | ||
704 | static struct proc_dir_entry *acpi_battery_dir = NULL; | |
705 | ||
706 | static int acpi_battery_read_info(struct seq_file *seq, void *offset) | |
707 | { | |
50dd0969 | 708 | struct acpi_battery *battery = seq->private; |
72206233 | 709 | struct acpi_sbs *sbs = battery->sbs; |
3f86b832 RT |
710 | int cscale; |
711 | int result = 0; | |
712 | ||
72206233 | 713 | if (sbs_mutex_lock(sbs)) { |
635227ee | 714 | return -ENODEV; |
3f86b832 RT |
715 | } |
716 | ||
72206233 VL |
717 | result = acpi_check_update_proc(sbs); |
718 | if (result) | |
719 | goto end; | |
3f86b832 | 720 | |
72206233 VL |
721 | if (update_time == 0) { |
722 | result = acpi_sbs_update_run(sbs, battery->id, DATA_TYPE_INFO); | |
3f86b832 | 723 | if (result) { |
6845118b VL |
724 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
725 | "acpi_sbs_update_run() failed")); | |
3f86b832 RT |
726 | } |
727 | } | |
728 | ||
72206233 | 729 | if (battery->battery_present) { |
3f86b832 RT |
730 | seq_printf(seq, "present: yes\n"); |
731 | } else { | |
732 | seq_printf(seq, "present: no\n"); | |
733 | goto end; | |
734 | } | |
735 | ||
736 | if (battery->info.capacity_mode) { | |
737 | cscale = battery->info.vscale * battery->info.ipscale; | |
738 | } else { | |
739 | cscale = battery->info.ipscale; | |
740 | } | |
72206233 | 741 | seq_printf(seq, "design capacity: %i%s\n", |
3f86b832 | 742 | battery->info.design_capacity * cscale, |
72206233 | 743 | battery->info.capacity_mode ? "0 mWh" : " mAh"); |
3f86b832 | 744 | |
72206233 | 745 | seq_printf(seq, "last full capacity: %i%s\n", |
3f86b832 | 746 | battery->info.full_charge_capacity * cscale, |
72206233 | 747 | battery->info.capacity_mode ? "0 mWh" : " mAh"); |
3f86b832 RT |
748 | |
749 | seq_printf(seq, "battery technology: rechargeable\n"); | |
750 | ||
751 | seq_printf(seq, "design voltage: %i mV\n", | |
752 | battery->info.design_voltage * battery->info.vscale); | |
753 | ||
754 | seq_printf(seq, "design capacity warning: unknown\n"); | |
755 | seq_printf(seq, "design capacity low: unknown\n"); | |
756 | seq_printf(seq, "capacity granularity 1: unknown\n"); | |
757 | seq_printf(seq, "capacity granularity 2: unknown\n"); | |
758 | ||
759 | seq_printf(seq, "model number: %s\n", | |
760 | battery->info.device_name); | |
761 | ||
762 | seq_printf(seq, "serial number: %i\n", | |
763 | battery->info.serial_number); | |
764 | ||
765 | seq_printf(seq, "battery type: %s\n", | |
766 | battery->info.device_chemistry); | |
767 | ||
768 | seq_printf(seq, "OEM info: %s\n", | |
769 | battery->info.manufacturer_name); | |
770 | ||
771 | end: | |
772 | ||
72206233 | 773 | sbs_mutex_unlock(sbs); |
3f86b832 | 774 | |
635227ee | 775 | return result; |
3f86b832 RT |
776 | } |
777 | ||
778 | static int acpi_battery_info_open_fs(struct inode *inode, struct file *file) | |
779 | { | |
780 | return single_open(file, acpi_battery_read_info, PDE(inode)->data); | |
781 | } | |
782 | ||
783 | static int acpi_battery_read_state(struct seq_file *seq, void *offset) | |
784 | { | |
72206233 VL |
785 | struct acpi_battery *battery = seq->private; |
786 | struct acpi_sbs *sbs = battery->sbs; | |
3f86b832 RT |
787 | int result = 0; |
788 | int cscale; | |
789 | int foo; | |
790 | ||
72206233 | 791 | if (sbs_mutex_lock(sbs)) { |
635227ee | 792 | return -ENODEV; |
3f86b832 RT |
793 | } |
794 | ||
72206233 VL |
795 | result = acpi_check_update_proc(sbs); |
796 | if (result) | |
797 | goto end; | |
3f86b832 | 798 | |
72206233 VL |
799 | if (update_time == 0) { |
800 | result = acpi_sbs_update_run(sbs, battery->id, DATA_TYPE_STATE); | |
3f86b832 | 801 | if (result) { |
6845118b VL |
802 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
803 | "acpi_sbs_update_run() failed")); | |
3f86b832 RT |
804 | } |
805 | } | |
806 | ||
72206233 | 807 | if (battery->battery_present) { |
3f86b832 RT |
808 | seq_printf(seq, "present: yes\n"); |
809 | } else { | |
810 | seq_printf(seq, "present: no\n"); | |
811 | goto end; | |
812 | } | |
813 | ||
814 | if (battery->info.capacity_mode) { | |
815 | cscale = battery->info.vscale * battery->info.ipscale; | |
816 | } else { | |
817 | cscale = battery->info.ipscale; | |
818 | } | |
819 | ||
72206233 | 820 | if (battery->state.battery_state & 0x0010) { |
3f86b832 RT |
821 | seq_printf(seq, "capacity state: critical\n"); |
822 | } else { | |
823 | seq_printf(seq, "capacity state: ok\n"); | |
824 | } | |
e6d0f562 VL |
825 | |
826 | foo = (s16) battery->state.amperage * battery->info.ipscale; | |
827 | if (battery->info.capacity_mode) { | |
828 | foo = foo * battery->info.design_voltage / 1000; | |
829 | } | |
3f86b832 RT |
830 | if (battery->state.amperage < 0) { |
831 | seq_printf(seq, "charging state: discharging\n"); | |
e6d0f562 VL |
832 | seq_printf(seq, "present rate: %d %s\n", |
833 | -foo, battery->info.capacity_mode ? "mW" : "mA"); | |
3f86b832 RT |
834 | } else if (battery->state.amperage > 0) { |
835 | seq_printf(seq, "charging state: charging\n"); | |
e6d0f562 VL |
836 | seq_printf(seq, "present rate: %d %s\n", |
837 | foo, battery->info.capacity_mode ? "mW" : "mA"); | |
3f86b832 RT |
838 | } else { |
839 | seq_printf(seq, "charging state: charged\n"); | |
840 | seq_printf(seq, "present rate: 0 %s\n", | |
841 | battery->info.capacity_mode ? "mW" : "mA"); | |
842 | } | |
843 | ||
72206233 | 844 | seq_printf(seq, "remaining capacity: %i%s\n", |
3f86b832 | 845 | battery->state.remaining_capacity * cscale, |
72206233 | 846 | battery->info.capacity_mode ? "0 mWh" : " mAh"); |
3f86b832 RT |
847 | |
848 | seq_printf(seq, "present voltage: %i mV\n", | |
849 | battery->state.voltage * battery->info.vscale); | |
850 | ||
851 | end: | |
852 | ||
72206233 | 853 | sbs_mutex_unlock(sbs); |
3f86b832 | 854 | |
635227ee | 855 | return result; |
3f86b832 RT |
856 | } |
857 | ||
858 | static int acpi_battery_state_open_fs(struct inode *inode, struct file *file) | |
859 | { | |
860 | return single_open(file, acpi_battery_read_state, PDE(inode)->data); | |
861 | } | |
862 | ||
863 | static int acpi_battery_read_alarm(struct seq_file *seq, void *offset) | |
864 | { | |
50dd0969 | 865 | struct acpi_battery *battery = seq->private; |
72206233 | 866 | struct acpi_sbs *sbs = battery->sbs; |
3f86b832 RT |
867 | int result = 0; |
868 | int cscale; | |
869 | ||
72206233 | 870 | if (sbs_mutex_lock(sbs)) { |
635227ee | 871 | return -ENODEV; |
3f86b832 RT |
872 | } |
873 | ||
72206233 VL |
874 | result = acpi_check_update_proc(sbs); |
875 | if (result) | |
876 | goto end; | |
3f86b832 | 877 | |
72206233 VL |
878 | if (update_time == 0) { |
879 | result = acpi_sbs_update_run(sbs, battery->id, DATA_TYPE_ALARM); | |
3f86b832 | 880 | if (result) { |
6845118b VL |
881 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
882 | "acpi_sbs_update_run() failed")); | |
3f86b832 RT |
883 | } |
884 | } | |
885 | ||
72206233 | 886 | if (!battery->battery_present) { |
3f86b832 RT |
887 | seq_printf(seq, "present: no\n"); |
888 | goto end; | |
889 | } | |
890 | ||
891 | if (battery->info.capacity_mode) { | |
892 | cscale = battery->info.vscale * battery->info.ipscale; | |
893 | } else { | |
894 | cscale = battery->info.ipscale; | |
895 | } | |
896 | ||
897 | seq_printf(seq, "alarm: "); | |
898 | if (battery->alarm.remaining_capacity) { | |
72206233 | 899 | seq_printf(seq, "%i%s\n", |
3f86b832 | 900 | battery->alarm.remaining_capacity * cscale, |
72206233 | 901 | battery->info.capacity_mode ? "0 mWh" : " mAh"); |
3f86b832 RT |
902 | } else { |
903 | seq_printf(seq, "disabled\n"); | |
904 | } | |
905 | ||
906 | end: | |
907 | ||
72206233 | 908 | sbs_mutex_unlock(sbs); |
3f86b832 | 909 | |
635227ee | 910 | return result; |
3f86b832 RT |
911 | } |
912 | ||
913 | static ssize_t | |
914 | acpi_battery_write_alarm(struct file *file, const char __user * buffer, | |
915 | size_t count, loff_t * ppos) | |
916 | { | |
50dd0969 JE |
917 | struct seq_file *seq = file->private_data; |
918 | struct acpi_battery *battery = seq->private; | |
72206233 | 919 | struct acpi_sbs *sbs = battery->sbs; |
3f86b832 RT |
920 | char alarm_string[12] = { '\0' }; |
921 | int result, old_alarm, new_alarm; | |
922 | ||
72206233 | 923 | if (sbs_mutex_lock(sbs)) { |
635227ee | 924 | return -ENODEV; |
3f86b832 RT |
925 | } |
926 | ||
72206233 VL |
927 | result = acpi_check_update_proc(sbs); |
928 | if (result) | |
929 | goto end; | |
3f86b832 | 930 | |
72206233 | 931 | if (!battery->battery_present) { |
3f86b832 RT |
932 | result = -ENODEV; |
933 | goto end; | |
934 | } | |
935 | ||
936 | if (count > sizeof(alarm_string) - 1) { | |
937 | result = -EINVAL; | |
938 | goto end; | |
939 | } | |
940 | ||
941 | if (copy_from_user(alarm_string, buffer, count)) { | |
942 | result = -EFAULT; | |
943 | goto end; | |
944 | } | |
945 | ||
946 | alarm_string[count] = 0; | |
947 | ||
948 | old_alarm = battery->alarm.remaining_capacity; | |
949 | new_alarm = simple_strtoul(alarm_string, NULL, 0); | |
950 | ||
951 | result = acpi_battery_set_alarm(battery, new_alarm); | |
952 | if (result) { | |
6845118b VL |
953 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
954 | "acpi_battery_set_alarm() failed")); | |
50dd0969 | 955 | acpi_battery_set_alarm(battery, old_alarm); |
3f86b832 RT |
956 | goto end; |
957 | } | |
958 | result = acpi_battery_get_alarm(battery); | |
959 | if (result) { | |
6845118b VL |
960 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
961 | "acpi_battery_get_alarm() failed")); | |
50dd0969 | 962 | acpi_battery_set_alarm(battery, old_alarm); |
3f86b832 RT |
963 | goto end; |
964 | } | |
965 | ||
966 | end: | |
72206233 | 967 | sbs_mutex_unlock(sbs); |
3f86b832 RT |
968 | |
969 | if (result) { | |
635227ee | 970 | return result; |
3f86b832 | 971 | } else { |
635227ee | 972 | return count; |
3f86b832 RT |
973 | } |
974 | } | |
975 | ||
976 | static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file) | |
977 | { | |
978 | return single_open(file, acpi_battery_read_alarm, PDE(inode)->data); | |
979 | } | |
980 | ||
981 | static struct file_operations acpi_battery_info_fops = { | |
982 | .open = acpi_battery_info_open_fs, | |
983 | .read = seq_read, | |
984 | .llseek = seq_lseek, | |
985 | .release = single_release, | |
986 | .owner = THIS_MODULE, | |
987 | }; | |
988 | ||
989 | static struct file_operations acpi_battery_state_fops = { | |
990 | .open = acpi_battery_state_open_fs, | |
991 | .read = seq_read, | |
992 | .llseek = seq_lseek, | |
993 | .release = single_release, | |
994 | .owner = THIS_MODULE, | |
995 | }; | |
996 | ||
997 | static struct file_operations acpi_battery_alarm_fops = { | |
998 | .open = acpi_battery_alarm_open_fs, | |
999 | .read = seq_read, | |
1000 | .write = acpi_battery_write_alarm, | |
1001 | .llseek = seq_lseek, | |
1002 | .release = single_release, | |
1003 | .owner = THIS_MODULE, | |
1004 | }; | |
1005 | ||
1006 | /* Legacy AC Adapter Interface */ | |
1007 | ||
1008 | static struct proc_dir_entry *acpi_ac_dir = NULL; | |
1009 | ||
1010 | static int acpi_ac_read_state(struct seq_file *seq, void *offset) | |
1011 | { | |
50dd0969 | 1012 | struct acpi_sbs *sbs = seq->private; |
3f86b832 RT |
1013 | int result; |
1014 | ||
72206233 | 1015 | if (sbs_mutex_lock(sbs)) { |
635227ee | 1016 | return -ENODEV; |
3f86b832 RT |
1017 | } |
1018 | ||
72206233 VL |
1019 | if (update_time == 0) { |
1020 | result = acpi_sbs_update_run(sbs, -1, DATA_TYPE_AC_STATE); | |
3f86b832 | 1021 | if (result) { |
6845118b VL |
1022 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1023 | "acpi_sbs_update_run() failed")); | |
3f86b832 RT |
1024 | } |
1025 | } | |
1026 | ||
1027 | seq_printf(seq, "state: %s\n", | |
72206233 | 1028 | sbs->ac.ac_present ? "on-line" : "off-line"); |
3f86b832 | 1029 | |
72206233 | 1030 | sbs_mutex_unlock(sbs); |
3f86b832 | 1031 | |
635227ee | 1032 | return 0; |
3f86b832 RT |
1033 | } |
1034 | ||
1035 | static int acpi_ac_state_open_fs(struct inode *inode, struct file *file) | |
1036 | { | |
1037 | return single_open(file, acpi_ac_read_state, PDE(inode)->data); | |
1038 | } | |
1039 | ||
1040 | static struct file_operations acpi_ac_state_fops = { | |
1041 | .open = acpi_ac_state_open_fs, | |
1042 | .read = seq_read, | |
1043 | .llseek = seq_lseek, | |
1044 | .release = single_release, | |
1045 | .owner = THIS_MODULE, | |
1046 | }; | |
1047 | ||
1048 | /* -------------------------------------------------------------------------- | |
1049 | Driver Interface | |
1050 | -------------------------------------------------------------------------- */ | |
1051 | ||
1052 | /* Smart Battery */ | |
1053 | ||
1054 | static int acpi_battery_add(struct acpi_sbs *sbs, int id) | |
1055 | { | |
1056 | int is_present; | |
1057 | int result; | |
1058 | char dir_name[32]; | |
1059 | struct acpi_battery *battery; | |
1060 | ||
3f86b832 RT |
1061 | battery = &sbs->battery[id]; |
1062 | ||
1063 | battery->alive = 0; | |
1064 | ||
1065 | battery->init_state = 0; | |
1066 | battery->id = id; | |
1067 | battery->sbs = sbs; | |
1068 | ||
1069 | result = acpi_battery_select(battery); | |
1070 | if (result) { | |
6845118b VL |
1071 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1072 | "acpi_battery_select() failed")); | |
3f86b832 RT |
1073 | goto end; |
1074 | } | |
1075 | ||
1076 | result = acpi_battery_get_present(battery); | |
1077 | if (result) { | |
6845118b VL |
1078 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1079 | "acpi_battery_get_present() failed")); | |
3f86b832 RT |
1080 | goto end; |
1081 | } | |
1082 | ||
72206233 | 1083 | is_present = battery->battery_present; |
3f86b832 RT |
1084 | |
1085 | if (is_present) { | |
1086 | result = acpi_battery_init(battery); | |
1087 | if (result) { | |
6845118b VL |
1088 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1089 | "acpi_battery_init() failed")); | |
3f86b832 RT |
1090 | goto end; |
1091 | } | |
1092 | battery->init_state = 1; | |
1093 | } | |
1094 | ||
50dd0969 | 1095 | sprintf(dir_name, ACPI_BATTERY_DIR_NAME, id); |
3f86b832 RT |
1096 | |
1097 | result = acpi_sbs_generic_add_fs(&battery->battery_entry, | |
1098 | acpi_battery_dir, | |
1099 | dir_name, | |
1100 | &acpi_battery_info_fops, | |
1101 | &acpi_battery_state_fops, | |
1102 | &acpi_battery_alarm_fops, battery); | |
1103 | if (result) { | |
6845118b VL |
1104 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1105 | "acpi_sbs_generic_add_fs() failed")); | |
3f86b832 RT |
1106 | goto end; |
1107 | } | |
1108 | battery->alive = 1; | |
1109 | ||
72206233 VL |
1110 | printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n", |
1111 | ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), dir_name, | |
1112 | sbs->battery->battery_present ? "present" : "absent"); | |
1113 | ||
3f86b832 | 1114 | end: |
635227ee | 1115 | return result; |
3f86b832 RT |
1116 | } |
1117 | ||
1118 | static void acpi_battery_remove(struct acpi_sbs *sbs, int id) | |
1119 | { | |
3f86b832 RT |
1120 | |
1121 | if (sbs->battery[id].battery_entry) { | |
1122 | acpi_sbs_generic_remove_fs(&(sbs->battery[id].battery_entry), | |
1123 | acpi_battery_dir); | |
1124 | } | |
1125 | } | |
1126 | ||
1127 | static int acpi_ac_add(struct acpi_sbs *sbs) | |
1128 | { | |
1129 | int result; | |
1130 | ||
3f86b832 RT |
1131 | result = acpi_ac_get_present(sbs); |
1132 | if (result) { | |
6845118b VL |
1133 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1134 | "acpi_ac_get_present() failed")); | |
3f86b832 RT |
1135 | goto end; |
1136 | } | |
1137 | ||
1138 | result = acpi_sbs_generic_add_fs(&sbs->ac_entry, | |
1139 | acpi_ac_dir, | |
1140 | ACPI_AC_DIR_NAME, | |
1141 | NULL, &acpi_ac_state_fops, NULL, sbs); | |
1142 | if (result) { | |
6845118b VL |
1143 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1144 | "acpi_sbs_generic_add_fs() failed")); | |
3f86b832 RT |
1145 | goto end; |
1146 | } | |
1147 | ||
72206233 VL |
1148 | printk(KERN_INFO PREFIX "%s [%s]: AC Adapter [%s] (%s)\n", |
1149 | ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), | |
1150 | ACPI_AC_DIR_NAME, sbs->ac.ac_present ? "on-line" : "off-line"); | |
1151 | ||
3f86b832 RT |
1152 | end: |
1153 | ||
635227ee | 1154 | return result; |
3f86b832 RT |
1155 | } |
1156 | ||
1157 | static void acpi_ac_remove(struct acpi_sbs *sbs) | |
1158 | { | |
3f86b832 RT |
1159 | |
1160 | if (sbs->ac_entry) { | |
1161 | acpi_sbs_generic_remove_fs(&sbs->ac_entry, acpi_ac_dir); | |
1162 | } | |
1163 | } | |
1164 | ||
72206233 | 1165 | static void acpi_sbs_update_time_run(unsigned long data) |
3f86b832 | 1166 | { |
72206233 | 1167 | acpi_os_execute(OSL_GPE_HANDLER, acpi_sbs_update_time, (void *)data); |
3f86b832 RT |
1168 | } |
1169 | ||
72206233 | 1170 | static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type) |
3f86b832 RT |
1171 | { |
1172 | struct acpi_battery *battery; | |
72206233 VL |
1173 | int result = 0, cnt; |
1174 | int old_ac_present = -1; | |
1175 | int old_battery_present = -1; | |
1176 | int new_ac_present = -1; | |
1177 | int new_battery_present = -1; | |
1178 | int id_min = 0, id_max = MAX_SBS_BAT - 1; | |
3f86b832 | 1179 | char dir_name[32]; |
72206233 VL |
1180 | int do_battery_init = 0, do_ac_init = 0; |
1181 | int old_remaining_capacity = 0; | |
bc90a010 | 1182 | int update_battery = 1; |
72206233 VL |
1183 | int up_tm = update_time; |
1184 | ||
1185 | if (sbs_zombie(sbs)) { | |
1186 | goto end; | |
1187 | } | |
3f86b832 | 1188 | |
72206233 VL |
1189 | if (id >= 0) { |
1190 | id_min = id_max = id; | |
1191 | } | |
1192 | ||
1193 | if (data_type == DATA_TYPE_COMMON && up_tm > 0) { | |
1194 | cnt = up_tm / (up_tm > UPDATE_DELAY ? UPDATE_DELAY : up_tm); | |
1195 | if (sbs->run_cnt % cnt != 0) { | |
1196 | update_battery = 0; | |
1197 | } | |
1198 | } | |
1199 | ||
1200 | sbs->run_cnt++; | |
1201 | ||
72206233 | 1202 | old_ac_present = sbs->ac.ac_present; |
3f86b832 RT |
1203 | |
1204 | result = acpi_ac_get_present(sbs); | |
1205 | if (result) { | |
6845118b VL |
1206 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1207 | "acpi_ac_get_present() failed")); | |
3f86b832 RT |
1208 | } |
1209 | ||
72206233 | 1210 | new_ac_present = sbs->ac.ac_present; |
3f86b832 RT |
1211 | |
1212 | do_ac_init = (old_ac_present != new_ac_present); | |
72206233 VL |
1213 | if (sbs->run_cnt == 1 && data_type == DATA_TYPE_COMMON) { |
1214 | do_ac_init = 1; | |
1215 | } | |
3f86b832 | 1216 | |
72206233 | 1217 | if (do_ac_init) { |
8db85d4c | 1218 | result = acpi_bus_generate_proc_event4(ACPI_AC_CLASS, |
72206233 | 1219 | ACPI_AC_DIR_NAME, |
8db85d4c AS |
1220 | ACPI_SBS_AC_NOTIFY_STATUS, |
1221 | new_ac_present); | |
72206233 VL |
1222 | if (result) { |
1223 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, | |
8db85d4c | 1224 | "acpi_bus_generate_event4() failed")); |
72206233 | 1225 | } |
8db85d4c AS |
1226 | acpi_bus_generate_netlink_event(ACPI_AC_CLASS, ACPI_AC_DIR_NAME, |
1227 | ACPI_SBS_AC_NOTIFY_STATUS, | |
1228 | new_ac_present); | |
72206233 VL |
1229 | } |
1230 | ||
1231 | if (data_type == DATA_TYPE_COMMON) { | |
1232 | if (!do_ac_init && !update_battery) { | |
1233 | goto end; | |
1234 | } | |
1235 | } | |
1236 | ||
1237 | if (data_type == DATA_TYPE_AC_STATE && !do_ac_init) { | |
3f86b832 RT |
1238 | goto end; |
1239 | } | |
1240 | ||
72206233 | 1241 | for (id = id_min; id <= id_max; id++) { |
3f86b832 RT |
1242 | battery = &sbs->battery[id]; |
1243 | if (battery->alive == 0) { | |
1244 | continue; | |
1245 | } | |
1246 | ||
1247 | old_remaining_capacity = battery->state.remaining_capacity; | |
1248 | ||
72206233 | 1249 | old_battery_present = battery->battery_present; |
3f86b832 RT |
1250 | |
1251 | result = acpi_battery_select(battery); | |
1252 | if (result) { | |
6845118b VL |
1253 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1254 | "acpi_battery_select() failed")); | |
3f86b832 | 1255 | } |
3f86b832 RT |
1256 | |
1257 | result = acpi_battery_get_present(battery); | |
1258 | if (result) { | |
6845118b VL |
1259 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1260 | "acpi_battery_get_present() failed")); | |
3f86b832 | 1261 | } |
3f86b832 | 1262 | |
72206233 | 1263 | new_battery_present = battery->battery_present; |
3f86b832 RT |
1264 | |
1265 | do_battery_init = ((old_battery_present != new_battery_present) | |
1266 | && new_battery_present); | |
72206233 VL |
1267 | if (!new_battery_present) |
1268 | goto event; | |
1269 | if (do_ac_init || do_battery_init) { | |
3f86b832 RT |
1270 | result = acpi_battery_init(battery); |
1271 | if (result) { | |
6845118b VL |
1272 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1273 | "acpi_battery_init() " | |
1274 | "failed")); | |
3f86b832 RT |
1275 | } |
1276 | } | |
72206233 | 1277 | if (sbs_zombie(sbs)) { |
3f86b832 RT |
1278 | goto end; |
1279 | } | |
72206233 VL |
1280 | |
1281 | if ((data_type == DATA_TYPE_COMMON | |
1282 | || data_type == DATA_TYPE_INFO) | |
1283 | && new_battery_present) { | |
1284 | result = acpi_battery_get_info(battery); | |
3f86b832 | 1285 | if (result) { |
6845118b | 1286 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
72206233 | 1287 | "acpi_battery_get_info() failed")); |
3f86b832 | 1288 | } |
72206233 VL |
1289 | } |
1290 | if (data_type == DATA_TYPE_INFO) { | |
1291 | continue; | |
1292 | } | |
1293 | if (sbs_zombie(sbs)) { | |
1294 | goto end; | |
1295 | } | |
3f86b832 | 1296 | |
72206233 VL |
1297 | if ((data_type == DATA_TYPE_COMMON |
1298 | || data_type == DATA_TYPE_STATE) | |
1299 | && new_battery_present) { | |
3f86b832 RT |
1300 | result = acpi_battery_get_state(battery); |
1301 | if (result) { | |
6845118b | 1302 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
72206233 | 1303 | "acpi_battery_get_state() failed")); |
3f86b832 RT |
1304 | } |
1305 | } | |
72206233 VL |
1306 | if (data_type == DATA_TYPE_STATE) { |
1307 | goto event; | |
3f86b832 | 1308 | } |
72206233 VL |
1309 | if (sbs_zombie(sbs)) { |
1310 | goto end; | |
3f86b832 RT |
1311 | } |
1312 | ||
72206233 VL |
1313 | if ((data_type == DATA_TYPE_COMMON |
1314 | || data_type == DATA_TYPE_ALARM) | |
1315 | && new_battery_present) { | |
1316 | result = acpi_battery_get_alarm(battery); | |
3f86b832 | 1317 | if (result) { |
6845118b | 1318 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
72206233 | 1319 | "acpi_battery_get_alarm() " |
6845118b | 1320 | "failed")); |
3f86b832 RT |
1321 | } |
1322 | } | |
72206233 VL |
1323 | if (data_type == DATA_TYPE_ALARM) { |
1324 | continue; | |
1325 | } | |
1326 | if (sbs_zombie(sbs)) { | |
1327 | goto end; | |
1328 | } | |
1329 | ||
1330 | event: | |
1331 | ||
1332 | if (old_battery_present != new_battery_present || do_ac_init || | |
1333 | old_remaining_capacity != | |
1334 | battery->state.remaining_capacity) { | |
50dd0969 | 1335 | sprintf(dir_name, ACPI_BATTERY_DIR_NAME, id); |
8db85d4c | 1336 | result = acpi_bus_generate_proc_event4(ACPI_BATTERY_CLASS, |
3f86b832 | 1337 | dir_name, |
8db85d4c AS |
1338 | ACPI_SBS_BATTERY_NOTIFY_STATUS, |
1339 | new_battery_present); | |
1340 | acpi_bus_generate_netlink_event(ACPI_BATTERY_CLASS, dir_name, | |
1341 | ACPI_SBS_BATTERY_NOTIFY_STATUS, | |
1342 | new_battery_present); | |
3f86b832 | 1343 | if (result) { |
6845118b | 1344 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
8db85d4c | 1345 | "acpi_bus_generate_proc_event4() " |
72206233 | 1346 | "failed")); |
3f86b832 RT |
1347 | } |
1348 | } | |
3f86b832 RT |
1349 | } |
1350 | ||
1351 | end: | |
72206233 | 1352 | |
635227ee | 1353 | return result; |
3f86b832 RT |
1354 | } |
1355 | ||
72206233 | 1356 | static void acpi_sbs_update_time(void *data) |
3f86b832 RT |
1357 | { |
1358 | struct acpi_sbs *sbs = data; | |
1359 | unsigned long delay = -1; | |
1360 | int result; | |
72206233 | 1361 | unsigned int up_tm = update_time; |
3f86b832 | 1362 | |
72206233 VL |
1363 | if (sbs_mutex_lock(sbs)) |
1364 | return; | |
3f86b832 | 1365 | |
72206233 | 1366 | result = acpi_sbs_update_run(sbs, -1, DATA_TYPE_COMMON); |
3f86b832 | 1367 | if (result) { |
6845118b VL |
1368 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1369 | "acpi_sbs_update_run() failed")); | |
3f86b832 RT |
1370 | } |
1371 | ||
72206233 | 1372 | if (sbs_zombie(sbs)) { |
3f86b832 RT |
1373 | goto end; |
1374 | } | |
1375 | ||
72206233 VL |
1376 | if (!up_tm) { |
1377 | if (timer_pending(&sbs->update_timer)) | |
1378 | del_timer(&sbs->update_timer); | |
1379 | } else { | |
1380 | delay = (up_tm > UPDATE_DELAY ? UPDATE_DELAY : up_tm); | |
1381 | delay = jiffies + HZ * delay; | |
1382 | if (timer_pending(&sbs->update_timer)) { | |
1383 | mod_timer(&sbs->update_timer, delay); | |
1384 | } else { | |
1385 | sbs->update_timer.data = (unsigned long)data; | |
1386 | sbs->update_timer.function = acpi_sbs_update_time_run; | |
1387 | sbs->update_timer.expires = delay; | |
1388 | add_timer(&sbs->update_timer); | |
1389 | } | |
3f86b832 RT |
1390 | } |
1391 | ||
3f86b832 | 1392 | end: |
72206233 VL |
1393 | |
1394 | sbs_mutex_unlock(sbs); | |
3f86b832 RT |
1395 | } |
1396 | ||
1397 | static int acpi_sbs_add(struct acpi_device *device) | |
1398 | { | |
1399 | struct acpi_sbs *sbs = NULL; | |
72206233 | 1400 | int result = 0, remove_result = 0; |
6d15702c | 1401 | int id; |
3f86b832 | 1402 | |
36bcbec7 | 1403 | sbs = kzalloc(sizeof(struct acpi_sbs), GFP_KERNEL); |
3f86b832 | 1404 | if (!sbs) { |
72206233 VL |
1405 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, "kzalloc() failed")); |
1406 | result = -ENOMEM; | |
1407 | goto end; | |
3f86b832 | 1408 | } |
3f86b832 | 1409 | |
72206233 VL |
1410 | mutex_init(&sbs->mutex); |
1411 | ||
1412 | sbs_mutex_lock(sbs); | |
1413 | ||
3f86b832 | 1414 | sbs->device = device; |
91087dfa | 1415 | sbs->hc = acpi_driver_data(device->parent); |
3f86b832 RT |
1416 | |
1417 | strcpy(acpi_device_name(device), ACPI_SBS_DEVICE_NAME); | |
1418 | strcpy(acpi_device_class(device), ACPI_SBS_CLASS); | |
1419 | acpi_driver_data(device) = sbs; | |
1420 | ||
3f86b832 RT |
1421 | result = acpi_ac_add(sbs); |
1422 | if (result) { | |
6845118b | 1423 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, "acpi_ac_add() failed")); |
3f86b832 RT |
1424 | goto end; |
1425 | } | |
72206233 | 1426 | |
addad454 AS |
1427 | acpi_sbsm_get_info(sbs); |
1428 | ||
1429 | if (!sbs->sbsm_present) { | |
3f86b832 RT |
1430 | result = acpi_battery_add(sbs, 0); |
1431 | if (result) { | |
6845118b VL |
1432 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1433 | "acpi_battery_add() failed")); | |
3f86b832 RT |
1434 | goto end; |
1435 | } | |
1436 | } else { | |
1437 | for (id = 0; id < MAX_SBS_BAT; id++) { | |
1438 | if ((sbs->sbsm_batteries_supported & (1 << id))) { | |
1439 | result = acpi_battery_add(sbs, id); | |
1440 | if (result) { | |
6845118b | 1441 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
72206233 | 1442 | "acpi_battery_add() failed")); |
3f86b832 RT |
1443 | goto end; |
1444 | } | |
1445 | } | |
1446 | } | |
1447 | } | |
1448 | ||
3f86b832 | 1449 | init_timer(&sbs->update_timer); |
72206233 VL |
1450 | result = acpi_check_update_proc(sbs); |
1451 | if (result) | |
1452 | goto end; | |
3f86b832 RT |
1453 | |
1454 | end: | |
72206233 VL |
1455 | |
1456 | sbs_mutex_unlock(sbs); | |
1457 | ||
3f86b832 | 1458 | if (result) { |
72206233 VL |
1459 | remove_result = acpi_sbs_remove(device, 0); |
1460 | if (remove_result) { | |
1461 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, | |
1462 | "acpi_sbs_remove() failed")); | |
1463 | } | |
3f86b832 RT |
1464 | } |
1465 | ||
635227ee | 1466 | return result; |
3f86b832 RT |
1467 | } |
1468 | ||
72206233 | 1469 | static int acpi_sbs_remove(struct acpi_device *device, int type) |
3f86b832 | 1470 | { |
cece9014 | 1471 | struct acpi_sbs *sbs; |
3f86b832 RT |
1472 | int id; |
1473 | ||
963497c1 LV |
1474 | if (!device) { |
1475 | return -EINVAL; | |
1476 | } | |
1477 | ||
72206233 | 1478 | sbs = acpi_driver_data(device); |
963497c1 | 1479 | if (!sbs) { |
635227ee | 1480 | return -EINVAL; |
3f86b832 RT |
1481 | } |
1482 | ||
72206233 VL |
1483 | sbs_mutex_lock(sbs); |
1484 | ||
3f86b832 | 1485 | sbs->zombie = 1; |
3f86b832 RT |
1486 | del_timer_sync(&sbs->update_timer); |
1487 | acpi_os_wait_events_complete(NULL); | |
1488 | del_timer_sync(&sbs->update_timer); | |
1489 | ||
1490 | for (id = 0; id < MAX_SBS_BAT; id++) { | |
1491 | acpi_battery_remove(sbs, id); | |
1492 | } | |
1493 | ||
1494 | acpi_ac_remove(sbs); | |
1495 | ||
72206233 VL |
1496 | sbs_mutex_unlock(sbs); |
1497 | ||
1498 | mutex_destroy(&sbs->mutex); | |
6d15702c | 1499 | |
3f86b832 RT |
1500 | kfree(sbs); |
1501 | ||
635227ee | 1502 | return 0; |
3f86b832 RT |
1503 | } |
1504 | ||
72206233 VL |
1505 | static void acpi_sbs_rmdirs(void) |
1506 | { | |
1507 | if (acpi_ac_dir) { | |
1508 | acpi_unlock_ac_dir(acpi_ac_dir); | |
1509 | acpi_ac_dir = NULL; | |
1510 | } | |
1511 | if (acpi_battery_dir) { | |
1512 | acpi_unlock_battery_dir(acpi_battery_dir); | |
1513 | acpi_battery_dir = NULL; | |
1514 | } | |
1515 | } | |
1516 | ||
1517 | static int acpi_sbs_resume(struct acpi_device *device) | |
1518 | { | |
1519 | struct acpi_sbs *sbs; | |
1520 | ||
1521 | if (!device) | |
1522 | return -EINVAL; | |
1523 | ||
1524 | sbs = device->driver_data; | |
1525 | ||
1526 | sbs->run_cnt = 0; | |
1527 | ||
1528 | return 0; | |
1529 | } | |
1530 | ||
3f86b832 RT |
1531 | static int __init acpi_sbs_init(void) |
1532 | { | |
1533 | int result = 0; | |
1534 | ||
b20d2aeb LB |
1535 | if (acpi_disabled) |
1536 | return -ENODEV; | |
1537 | ||
3f86b832 RT |
1538 | if (capacity_mode != DEF_CAPACITY_UNIT |
1539 | && capacity_mode != MAH_CAPACITY_UNIT | |
1540 | && capacity_mode != MWH_CAPACITY_UNIT) { | |
72206233 | 1541 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
6845118b | 1542 | "invalid capacity_mode = %d", capacity_mode)); |
635227ee | 1543 | return -EINVAL; |
3f86b832 RT |
1544 | } |
1545 | ||
1546 | acpi_ac_dir = acpi_lock_ac_dir(); | |
1547 | if (!acpi_ac_dir) { | |
6845118b VL |
1548 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1549 | "acpi_lock_ac_dir() failed")); | |
635227ee | 1550 | return -ENODEV; |
3f86b832 RT |
1551 | } |
1552 | ||
1553 | acpi_battery_dir = acpi_lock_battery_dir(); | |
1554 | if (!acpi_battery_dir) { | |
6845118b VL |
1555 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1556 | "acpi_lock_battery_dir() failed")); | |
72206233 | 1557 | acpi_sbs_rmdirs(); |
635227ee | 1558 | return -ENODEV; |
3f86b832 RT |
1559 | } |
1560 | ||
1561 | result = acpi_bus_register_driver(&acpi_sbs_driver); | |
1562 | if (result < 0) { | |
6845118b VL |
1563 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1564 | "acpi_bus_register_driver() failed")); | |
72206233 | 1565 | acpi_sbs_rmdirs(); |
635227ee | 1566 | return -ENODEV; |
3f86b832 RT |
1567 | } |
1568 | ||
635227ee | 1569 | return 0; |
3f86b832 RT |
1570 | } |
1571 | ||
1572 | static void __exit acpi_sbs_exit(void) | |
1573 | { | |
3f86b832 RT |
1574 | acpi_bus_unregister_driver(&acpi_sbs_driver); |
1575 | ||
72206233 | 1576 | acpi_sbs_rmdirs(); |
3f86b832 | 1577 | |
635227ee | 1578 | return; |
3f86b832 RT |
1579 | } |
1580 | ||
1581 | module_init(acpi_sbs_init); | |
1582 | module_exit(acpi_sbs_exit); |