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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 | ||
3f86b832 RT |
37 | #define ACPI_SBS_COMPONENT 0x00080000 |
38 | #define ACPI_SBS_CLASS "sbs" | |
39 | #define ACPI_AC_CLASS "ac_adapter" | |
40 | #define ACPI_BATTERY_CLASS "battery" | |
3f86b832 RT |
41 | #define ACPI_SBS_DEVICE_NAME "Smart Battery System" |
42 | #define ACPI_SBS_FILE_INFO "info" | |
43 | #define ACPI_SBS_FILE_STATE "state" | |
44 | #define ACPI_SBS_FILE_ALARM "alarm" | |
45 | #define ACPI_BATTERY_DIR_NAME "BAT%i" | |
46 | #define ACPI_AC_DIR_NAME "AC0" | |
47 | #define ACPI_SBC_SMBUS_ADDR 0x9 | |
48 | #define ACPI_SBSM_SMBUS_ADDR 0xa | |
49 | #define ACPI_SB_SMBUS_ADDR 0xb | |
50 | #define ACPI_SBS_AC_NOTIFY_STATUS 0x80 | |
51 | #define ACPI_SBS_BATTERY_NOTIFY_STATUS 0x80 | |
52 | #define ACPI_SBS_BATTERY_NOTIFY_INFO 0x81 | |
53 | ||
54 | #define _COMPONENT ACPI_SBS_COMPONENT | |
55 | ||
f52fd66d | 56 | ACPI_MODULE_NAME("sbs"); |
3f86b832 RT |
57 | |
58 | MODULE_AUTHOR("Rich Townsend"); | |
59 | MODULE_DESCRIPTION("Smart Battery System ACPI interface driver"); | |
60 | MODULE_LICENSE("GPL"); | |
61 | ||
6d15702c VL |
62 | #define xmsleep(t) msleep(t) |
63 | ||
64 | #define ACPI_EC_SMB_PRTCL 0x00 /* protocol, PEC */ | |
65 | ||
66 | #define ACPI_EC_SMB_STS 0x01 /* status */ | |
67 | #define ACPI_EC_SMB_ADDR 0x02 /* address */ | |
68 | #define ACPI_EC_SMB_CMD 0x03 /* command */ | |
69 | #define ACPI_EC_SMB_DATA 0x04 /* 32 data registers */ | |
70 | #define ACPI_EC_SMB_BCNT 0x24 /* number of data bytes */ | |
71 | ||
72 | #define ACPI_EC_SMB_STS_DONE 0x80 | |
73 | #define ACPI_EC_SMB_STS_STATUS 0x1f | |
74 | ||
75 | #define ACPI_EC_SMB_PRTCL_WRITE 0x00 | |
76 | #define ACPI_EC_SMB_PRTCL_READ 0x01 | |
77 | #define ACPI_EC_SMB_PRTCL_WORD_DATA 0x08 | |
78 | #define ACPI_EC_SMB_PRTCL_BLOCK_DATA 0x0a | |
79 | ||
80 | #define ACPI_EC_SMB_TRANSACTION_SLEEP 1 | |
81 | #define ACPI_EC_SMB_ACCESS_SLEEP1 1 | |
82 | #define ACPI_EC_SMB_ACCESS_SLEEP2 10 | |
83 | ||
84 | #define DEF_CAPACITY_UNIT 3 | |
85 | #define MAH_CAPACITY_UNIT 1 | |
86 | #define MWH_CAPACITY_UNIT 2 | |
87 | #define CAPACITY_UNIT DEF_CAPACITY_UNIT | |
88 | ||
89 | #define REQUEST_UPDATE_MODE 1 | |
90 | #define QUEUE_UPDATE_MODE 2 | |
91 | ||
92 | #define DATA_TYPE_COMMON 0 | |
93 | #define DATA_TYPE_INFO 1 | |
94 | #define DATA_TYPE_STATE 2 | |
95 | #define DATA_TYPE_ALARM 3 | |
96 | #define DATA_TYPE_AC_STATE 4 | |
97 | ||
98 | extern struct proc_dir_entry *acpi_lock_ac_dir(void); | |
99 | extern struct proc_dir_entry *acpi_lock_battery_dir(void); | |
100 | extern void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir); | |
101 | extern void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir); | |
102 | ||
103 | #define MAX_SBS_BAT 4 | |
104 | #define ACPI_SBS_BLOCK_MAX 32 | |
105 | ||
106 | #define ACPI_SBS_SMBUS_READ 1 | |
107 | #define ACPI_SBS_SMBUS_WRITE 2 | |
108 | ||
109 | #define ACPI_SBS_WORD_DATA 1 | |
110 | #define ACPI_SBS_BLOCK_DATA 2 | |
111 | ||
72206233 | 112 | #define UPDATE_DELAY 10 |
3f86b832 | 113 | |
72206233 VL |
114 | /* 0 - every time, > 0 - by update_time */ |
115 | static unsigned int update_time = 120; | |
3f86b832 | 116 | |
72206233 | 117 | static unsigned int capacity_mode = CAPACITY_UNIT; |
3f86b832 | 118 | |
72206233 VL |
119 | module_param(update_time, uint, 0644); |
120 | module_param(capacity_mode, uint, 0444); | |
3f86b832 RT |
121 | |
122 | static int acpi_sbs_add(struct acpi_device *device); | |
123 | static int acpi_sbs_remove(struct acpi_device *device, int type); | |
72206233 | 124 | static int acpi_sbs_resume(struct acpi_device *device); |
3f86b832 | 125 | |
1ba90e3a TR |
126 | static const struct acpi_device_id sbs_device_ids[] = { |
127 | {"ACPI0001", 0}, | |
128 | {"ACPI0005", 0}, | |
129 | {"", 0}, | |
130 | }; | |
131 | MODULE_DEVICE_TABLE(acpi, sbs_device_ids); | |
132 | ||
3f86b832 | 133 | static struct acpi_driver acpi_sbs_driver = { |
c2b6705b | 134 | .name = "sbs", |
3f86b832 | 135 | .class = ACPI_SBS_CLASS, |
1ba90e3a | 136 | .ids = sbs_device_ids, |
3f86b832 RT |
137 | .ops = { |
138 | .add = acpi_sbs_add, | |
139 | .remove = acpi_sbs_remove, | |
72206233 | 140 | .resume = acpi_sbs_resume, |
3f86b832 RT |
141 | }, |
142 | }; | |
143 | ||
72206233 VL |
144 | struct acpi_ac { |
145 | int ac_present; | |
146 | }; | |
147 | ||
3f86b832 RT |
148 | struct acpi_battery_info { |
149 | int capacity_mode; | |
150 | s16 full_charge_capacity; | |
151 | s16 design_capacity; | |
152 | s16 design_voltage; | |
153 | int vscale; | |
154 | int ipscale; | |
155 | s16 serial_number; | |
6d15702c VL |
156 | char manufacturer_name[ACPI_SBS_BLOCK_MAX + 3]; |
157 | char device_name[ACPI_SBS_BLOCK_MAX + 3]; | |
158 | char device_chemistry[ACPI_SBS_BLOCK_MAX + 3]; | |
3f86b832 RT |
159 | }; |
160 | ||
161 | struct acpi_battery_state { | |
162 | s16 voltage; | |
163 | s16 amperage; | |
164 | s16 remaining_capacity; | |
72206233 | 165 | s16 battery_state; |
3f86b832 RT |
166 | }; |
167 | ||
168 | struct acpi_battery_alarm { | |
169 | s16 remaining_capacity; | |
170 | }; | |
171 | ||
172 | struct acpi_battery { | |
173 | int alive; | |
3f86b832 RT |
174 | int id; |
175 | int init_state; | |
72206233 | 176 | int battery_present; |
3f86b832 RT |
177 | struct acpi_sbs *sbs; |
178 | struct acpi_battery_info info; | |
179 | struct acpi_battery_state state; | |
180 | struct acpi_battery_alarm alarm; | |
181 | struct proc_dir_entry *battery_entry; | |
182 | }; | |
183 | ||
184 | struct acpi_sbs { | |
6d15702c | 185 | int base; |
3f86b832 | 186 | struct acpi_device *device; |
72206233 | 187 | struct mutex mutex; |
3f86b832 RT |
188 | int sbsm_present; |
189 | int sbsm_batteries_supported; | |
3f86b832 | 190 | struct proc_dir_entry *ac_entry; |
72206233 | 191 | struct acpi_ac ac; |
3f86b832 | 192 | struct acpi_battery battery[MAX_SBS_BAT]; |
3f86b832 | 193 | int zombie; |
3f86b832 | 194 | struct timer_list update_timer; |
72206233 VL |
195 | int run_cnt; |
196 | int update_proc_flg; | |
3f86b832 RT |
197 | }; |
198 | ||
72206233 VL |
199 | static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type); |
200 | static void acpi_sbs_update_time(void *data); | |
201 | ||
6d15702c VL |
202 | union sbs_rw_data { |
203 | u16 word; | |
204 | u8 block[ACPI_SBS_BLOCK_MAX + 2]; | |
205 | }; | |
206 | ||
207 | static int acpi_ec_sbs_access(struct acpi_sbs *sbs, u16 addr, | |
208 | char read_write, u8 command, int size, | |
209 | union sbs_rw_data *data); | |
3f86b832 RT |
210 | |
211 | /* -------------------------------------------------------------------------- | |
212 | SMBus Communication | |
213 | -------------------------------------------------------------------------- */ | |
214 | ||
6d15702c | 215 | static int acpi_ec_sbs_read(struct acpi_sbs *sbs, u8 address, u8 * data) |
3f86b832 | 216 | { |
6d15702c VL |
217 | u8 val; |
218 | int err; | |
3f86b832 | 219 | |
6d15702c VL |
220 | err = ec_read(sbs->base + address, &val); |
221 | if (!err) { | |
222 | *data = val; | |
223 | } | |
224 | xmsleep(ACPI_EC_SMB_TRANSACTION_SLEEP); | |
225 | return (err); | |
226 | } | |
3f86b832 | 227 | |
6d15702c VL |
228 | static int acpi_ec_sbs_write(struct acpi_sbs *sbs, u8 address, u8 data) |
229 | { | |
230 | int err; | |
3f86b832 | 231 | |
6d15702c VL |
232 | err = ec_write(sbs->base + address, data); |
233 | return (err); | |
234 | } | |
3f86b832 | 235 | |
6d15702c VL |
236 | static int |
237 | acpi_ec_sbs_access(struct acpi_sbs *sbs, u16 addr, | |
238 | char read_write, u8 command, int size, | |
239 | union sbs_rw_data *data) | |
240 | { | |
241 | unsigned char protocol, len = 0, temp[2] = { 0, 0 }; | |
242 | int i; | |
243 | ||
244 | if (read_write == ACPI_SBS_SMBUS_READ) { | |
245 | protocol = ACPI_EC_SMB_PRTCL_READ; | |
246 | } else { | |
247 | protocol = ACPI_EC_SMB_PRTCL_WRITE; | |
248 | } | |
249 | ||
250 | switch (size) { | |
251 | ||
252 | case ACPI_SBS_WORD_DATA: | |
253 | acpi_ec_sbs_write(sbs, ACPI_EC_SMB_CMD, command); | |
254 | if (read_write == ACPI_SBS_SMBUS_WRITE) { | |
255 | acpi_ec_sbs_write(sbs, ACPI_EC_SMB_DATA, data->word); | |
256 | acpi_ec_sbs_write(sbs, ACPI_EC_SMB_DATA + 1, | |
257 | data->word >> 8); | |
258 | } | |
259 | protocol |= ACPI_EC_SMB_PRTCL_WORD_DATA; | |
3f86b832 | 260 | break; |
6d15702c VL |
261 | case ACPI_SBS_BLOCK_DATA: |
262 | acpi_ec_sbs_write(sbs, ACPI_EC_SMB_CMD, command); | |
263 | if (read_write == ACPI_SBS_SMBUS_WRITE) { | |
264 | len = min_t(u8, data->block[0], 32); | |
265 | acpi_ec_sbs_write(sbs, ACPI_EC_SMB_BCNT, len); | |
266 | for (i = 0; i < len; i++) | |
267 | acpi_ec_sbs_write(sbs, ACPI_EC_SMB_DATA + i, | |
268 | data->block[i + 1]); | |
269 | } | |
270 | protocol |= ACPI_EC_SMB_PRTCL_BLOCK_DATA; | |
3f86b832 | 271 | break; |
6d15702c VL |
272 | default: |
273 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, | |
6845118b | 274 | "unsupported transaction %d", size)); |
6d15702c VL |
275 | return (-1); |
276 | } | |
277 | ||
278 | acpi_ec_sbs_write(sbs, ACPI_EC_SMB_ADDR, addr << 1); | |
279 | acpi_ec_sbs_write(sbs, ACPI_EC_SMB_PRTCL, protocol); | |
280 | ||
281 | acpi_ec_sbs_read(sbs, ACPI_EC_SMB_STS, temp); | |
282 | ||
283 | if (~temp[0] & ACPI_EC_SMB_STS_DONE) { | |
284 | xmsleep(ACPI_EC_SMB_ACCESS_SLEEP1); | |
285 | acpi_ec_sbs_read(sbs, ACPI_EC_SMB_STS, temp); | |
286 | } | |
287 | if (~temp[0] & ACPI_EC_SMB_STS_DONE) { | |
288 | xmsleep(ACPI_EC_SMB_ACCESS_SLEEP2); | |
289 | acpi_ec_sbs_read(sbs, ACPI_EC_SMB_STS, temp); | |
290 | } | |
291 | if ((~temp[0] & ACPI_EC_SMB_STS_DONE) | |
292 | || (temp[0] & ACPI_EC_SMB_STS_STATUS)) { | |
293 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, | |
6845118b | 294 | "transaction %d error", size)); |
6d15702c VL |
295 | return (-1); |
296 | } | |
297 | ||
298 | if (read_write == ACPI_SBS_SMBUS_WRITE) { | |
299 | return (0); | |
300 | } | |
301 | ||
302 | switch (size) { | |
303 | ||
304 | case ACPI_SBS_WORD_DATA: | |
305 | acpi_ec_sbs_read(sbs, ACPI_EC_SMB_DATA, temp); | |
306 | acpi_ec_sbs_read(sbs, ACPI_EC_SMB_DATA + 1, temp + 1); | |
307 | data->word = (temp[1] << 8) | temp[0]; | |
3f86b832 | 308 | break; |
6d15702c VL |
309 | |
310 | case ACPI_SBS_BLOCK_DATA: | |
311 | len = 0; | |
312 | acpi_ec_sbs_read(sbs, ACPI_EC_SMB_BCNT, &len); | |
313 | len = min_t(u8, len, 32); | |
314 | for (i = 0; i < len; i++) | |
315 | acpi_ec_sbs_read(sbs, ACPI_EC_SMB_DATA + i, | |
316 | data->block + i + 1); | |
317 | data->block[0] = len; | |
3f86b832 RT |
318 | break; |
319 | default: | |
6d15702c | 320 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
6845118b | 321 | "unsupported transaction %d", size)); |
6d15702c | 322 | return (-1); |
3f86b832 | 323 | } |
6d15702c VL |
324 | |
325 | return (0); | |
3f86b832 RT |
326 | } |
327 | ||
328 | static int | |
6d15702c | 329 | acpi_sbs_read_word(struct acpi_sbs *sbs, int addr, int func, u16 * word) |
3f86b832 | 330 | { |
6d15702c | 331 | union sbs_rw_data data; |
3f86b832 | 332 | int result = 0; |
3f86b832 | 333 | |
6d15702c VL |
334 | result = acpi_ec_sbs_access(sbs, addr, |
335 | ACPI_SBS_SMBUS_READ, func, | |
336 | ACPI_SBS_WORD_DATA, &data); | |
337 | if (result) { | |
6845118b VL |
338 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
339 | "acpi_ec_sbs_access() failed")); | |
6d15702c VL |
340 | } else { |
341 | *word = data.word; | |
3f86b832 RT |
342 | } |
343 | ||
635227ee | 344 | return result; |
3f86b832 RT |
345 | } |
346 | ||
347 | static int | |
6d15702c | 348 | acpi_sbs_read_str(struct acpi_sbs *sbs, int addr, int func, char *str) |
3f86b832 | 349 | { |
6d15702c | 350 | union sbs_rw_data data; |
3f86b832 | 351 | int result = 0; |
3f86b832 | 352 | |
6d15702c VL |
353 | result = acpi_ec_sbs_access(sbs, addr, |
354 | ACPI_SBS_SMBUS_READ, func, | |
355 | ACPI_SBS_BLOCK_DATA, &data); | |
356 | if (result) { | |
6845118b VL |
357 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
358 | "acpi_ec_sbs_access() failed")); | |
6d15702c VL |
359 | } else { |
360 | strncpy(str, (const char *)data.block + 1, data.block[0]); | |
361 | str[data.block[0]] = 0; | |
3f86b832 RT |
362 | } |
363 | ||
635227ee | 364 | return result; |
3f86b832 RT |
365 | } |
366 | ||
367 | static int | |
6d15702c | 368 | acpi_sbs_write_word(struct acpi_sbs *sbs, int addr, int func, int word) |
3f86b832 | 369 | { |
6d15702c | 370 | union sbs_rw_data data; |
3f86b832 | 371 | int result = 0; |
3f86b832 RT |
372 | |
373 | data.word = word; | |
374 | ||
6d15702c VL |
375 | result = acpi_ec_sbs_access(sbs, addr, |
376 | ACPI_SBS_SMBUS_WRITE, func, | |
377 | ACPI_SBS_WORD_DATA, &data); | |
378 | if (result) { | |
6845118b VL |
379 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
380 | "acpi_ec_sbs_access() failed")); | |
3f86b832 RT |
381 | } |
382 | ||
635227ee | 383 | return result; |
3f86b832 RT |
384 | } |
385 | ||
72206233 VL |
386 | static int sbs_zombie(struct acpi_sbs *sbs) |
387 | { | |
388 | return (sbs->zombie); | |
389 | } | |
390 | ||
391 | static int sbs_mutex_lock(struct acpi_sbs *sbs) | |
392 | { | |
393 | if (sbs_zombie(sbs)) { | |
394 | return -ENODEV; | |
395 | } | |
396 | mutex_lock(&sbs->mutex); | |
397 | return 0; | |
398 | } | |
399 | ||
400 | static void sbs_mutex_unlock(struct acpi_sbs *sbs) | |
401 | { | |
402 | mutex_unlock(&sbs->mutex); | |
403 | } | |
404 | ||
3f86b832 RT |
405 | /* -------------------------------------------------------------------------- |
406 | Smart Battery System Management | |
407 | -------------------------------------------------------------------------- */ | |
408 | ||
72206233 VL |
409 | static int acpi_check_update_proc(struct acpi_sbs *sbs) |
410 | { | |
411 | acpi_status status = AE_OK; | |
412 | ||
413 | if (update_time == 0) { | |
414 | sbs->update_proc_flg = 0; | |
415 | return 0; | |
416 | } | |
417 | if (sbs->update_proc_flg == 0) { | |
418 | status = acpi_os_execute(OSL_GPE_HANDLER, | |
419 | acpi_sbs_update_time, sbs); | |
420 | if (status != AE_OK) { | |
421 | ACPI_EXCEPTION((AE_INFO, status, | |
422 | "acpi_os_execute() failed")); | |
423 | return 1; | |
424 | } | |
425 | sbs->update_proc_flg = 1; | |
426 | } | |
427 | return 0; | |
428 | } | |
3f86b832 RT |
429 | |
430 | static int acpi_sbs_generate_event(struct acpi_device *device, | |
431 | int event, int state, char *bid, char *class) | |
432 | { | |
433 | char bid_saved[5]; | |
434 | char class_saved[20]; | |
435 | int result = 0; | |
436 | ||
3f86b832 RT |
437 | strcpy(bid_saved, acpi_device_bid(device)); |
438 | strcpy(class_saved, acpi_device_class(device)); | |
439 | ||
440 | strcpy(acpi_device_bid(device), bid); | |
441 | strcpy(acpi_device_class(device), class); | |
442 | ||
443 | result = acpi_bus_generate_event(device, event, state); | |
444 | ||
445 | strcpy(acpi_device_bid(device), bid_saved); | |
446 | strcpy(acpi_device_class(device), class_saved); | |
447 | ||
635227ee | 448 | return result; |
3f86b832 RT |
449 | } |
450 | ||
451 | static int acpi_battery_get_present(struct acpi_battery *battery) | |
452 | { | |
453 | s16 state; | |
454 | int result = 0; | |
455 | int is_present = 0; | |
456 | ||
6d15702c VL |
457 | result = acpi_sbs_read_word(battery->sbs, |
458 | ACPI_SBSM_SMBUS_ADDR, 0x01, &state); | |
3f86b832 | 459 | if (result) { |
6845118b VL |
460 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
461 | "acpi_sbs_read_word() failed")); | |
3f86b832 RT |
462 | } |
463 | if (!result) { | |
464 | is_present = (state & 0x000f) & (1 << battery->id); | |
465 | } | |
466 | battery->battery_present = is_present; | |
467 | ||
635227ee | 468 | return result; |
3f86b832 RT |
469 | } |
470 | ||
3f86b832 RT |
471 | static int acpi_battery_select(struct acpi_battery *battery) |
472 | { | |
6d15702c | 473 | struct acpi_sbs *sbs = battery->sbs; |
3f86b832 RT |
474 | int result = 0; |
475 | s16 state; | |
476 | int foo; | |
477 | ||
72206233 | 478 | if (sbs->sbsm_present) { |
3f86b832 RT |
479 | |
480 | /* Take special care not to knobble other nibbles of | |
481 | * state (aka selector_state), since | |
482 | * it causes charging to halt on SBSELs */ | |
483 | ||
484 | result = | |
6d15702c | 485 | acpi_sbs_read_word(sbs, ACPI_SBSM_SMBUS_ADDR, 0x01, &state); |
3f86b832 | 486 | if (result) { |
6845118b VL |
487 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
488 | "acpi_sbs_read_word() failed")); | |
3f86b832 RT |
489 | goto end; |
490 | } | |
491 | ||
492 | foo = (state & 0x0fff) | (1 << (battery->id + 12)); | |
493 | result = | |
6d15702c | 494 | acpi_sbs_write_word(sbs, ACPI_SBSM_SMBUS_ADDR, 0x01, foo); |
3f86b832 | 495 | if (result) { |
6845118b VL |
496 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
497 | "acpi_sbs_write_word() failed")); | |
3f86b832 RT |
498 | goto end; |
499 | } | |
500 | } | |
501 | ||
502 | end: | |
635227ee | 503 | return result; |
3f86b832 RT |
504 | } |
505 | ||
506 | static int acpi_sbsm_get_info(struct acpi_sbs *sbs) | |
507 | { | |
3f86b832 RT |
508 | int result = 0; |
509 | s16 battery_system_info; | |
510 | ||
6d15702c VL |
511 | result = acpi_sbs_read_word(sbs, ACPI_SBSM_SMBUS_ADDR, 0x04, |
512 | &battery_system_info); | |
3f86b832 | 513 | if (result) { |
6845118b VL |
514 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
515 | "acpi_sbs_read_word() failed")); | |
3f86b832 RT |
516 | goto end; |
517 | } | |
addad454 | 518 | sbs->sbsm_present = 1; |
3f86b832 RT |
519 | sbs->sbsm_batteries_supported = battery_system_info & 0x000f; |
520 | ||
521 | end: | |
522 | ||
635227ee | 523 | return result; |
3f86b832 RT |
524 | } |
525 | ||
526 | static int acpi_battery_get_info(struct acpi_battery *battery) | |
527 | { | |
6d15702c | 528 | struct acpi_sbs *sbs = battery->sbs; |
3f86b832 RT |
529 | int result = 0; |
530 | s16 battery_mode; | |
531 | s16 specification_info; | |
532 | ||
6d15702c VL |
533 | result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x03, |
534 | &battery_mode); | |
3f86b832 | 535 | if (result) { |
6845118b VL |
536 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
537 | "acpi_sbs_read_word() failed")); | |
3f86b832 RT |
538 | goto end; |
539 | } | |
540 | battery->info.capacity_mode = (battery_mode & 0x8000) >> 15; | |
541 | ||
6d15702c VL |
542 | result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x10, |
543 | &battery->info.full_charge_capacity); | |
3f86b832 | 544 | if (result) { |
6845118b VL |
545 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
546 | "acpi_sbs_read_word() failed")); | |
3f86b832 RT |
547 | goto end; |
548 | } | |
549 | ||
6d15702c VL |
550 | result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x18, |
551 | &battery->info.design_capacity); | |
3f86b832 RT |
552 | |
553 | if (result) { | |
72206233 VL |
554 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
555 | "acpi_sbs_read_word() failed")); | |
3f86b832 RT |
556 | goto end; |
557 | } | |
558 | ||
6d15702c VL |
559 | result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x19, |
560 | &battery->info.design_voltage); | |
3f86b832 | 561 | if (result) { |
6845118b VL |
562 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
563 | "acpi_sbs_read_word() failed")); | |
3f86b832 RT |
564 | goto end; |
565 | } | |
566 | ||
6d15702c VL |
567 | result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x1a, |
568 | &specification_info); | |
3f86b832 | 569 | if (result) { |
6845118b VL |
570 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
571 | "acpi_sbs_read_word() failed")); | |
3f86b832 RT |
572 | goto end; |
573 | } | |
574 | ||
575 | switch ((specification_info & 0x0f00) >> 8) { | |
576 | case 1: | |
577 | battery->info.vscale = 10; | |
578 | break; | |
579 | case 2: | |
580 | battery->info.vscale = 100; | |
581 | break; | |
582 | case 3: | |
583 | battery->info.vscale = 1000; | |
584 | break; | |
585 | default: | |
586 | battery->info.vscale = 1; | |
587 | } | |
588 | ||
589 | switch ((specification_info & 0xf000) >> 12) { | |
590 | case 1: | |
591 | battery->info.ipscale = 10; | |
592 | break; | |
593 | case 2: | |
594 | battery->info.ipscale = 100; | |
595 | break; | |
596 | case 3: | |
597 | battery->info.ipscale = 1000; | |
598 | break; | |
599 | default: | |
600 | battery->info.ipscale = 1; | |
601 | } | |
602 | ||
6d15702c VL |
603 | result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x1c, |
604 | &battery->info.serial_number); | |
3f86b832 | 605 | if (result) { |
72206233 VL |
606 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
607 | "acpi_sbs_read_word() failed")); | |
3f86b832 RT |
608 | goto end; |
609 | } | |
610 | ||
6d15702c VL |
611 | result = acpi_sbs_read_str(sbs, ACPI_SB_SMBUS_ADDR, 0x20, |
612 | battery->info.manufacturer_name); | |
3f86b832 | 613 | if (result) { |
6845118b VL |
614 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
615 | "acpi_sbs_read_str() failed")); | |
3f86b832 RT |
616 | goto end; |
617 | } | |
618 | ||
6d15702c VL |
619 | result = acpi_sbs_read_str(sbs, ACPI_SB_SMBUS_ADDR, 0x21, |
620 | battery->info.device_name); | |
3f86b832 | 621 | if (result) { |
6845118b VL |
622 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
623 | "acpi_sbs_read_str() failed")); | |
3f86b832 RT |
624 | goto end; |
625 | } | |
626 | ||
6d15702c VL |
627 | result = acpi_sbs_read_str(sbs, ACPI_SB_SMBUS_ADDR, 0x22, |
628 | battery->info.device_chemistry); | |
3f86b832 | 629 | if (result) { |
6845118b VL |
630 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
631 | "acpi_sbs_read_str() failed")); | |
3f86b832 RT |
632 | goto end; |
633 | } | |
634 | ||
635 | end: | |
635227ee | 636 | return result; |
3f86b832 RT |
637 | } |
638 | ||
3f86b832 RT |
639 | static int acpi_battery_get_state(struct acpi_battery *battery) |
640 | { | |
6d15702c | 641 | struct acpi_sbs *sbs = battery->sbs; |
3f86b832 RT |
642 | int result = 0; |
643 | ||
6d15702c VL |
644 | result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x09, |
645 | &battery->state.voltage); | |
3f86b832 | 646 | if (result) { |
6845118b VL |
647 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
648 | "acpi_sbs_read_word() failed")); | |
3f86b832 RT |
649 | goto end; |
650 | } | |
651 | ||
6d15702c VL |
652 | result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x0a, |
653 | &battery->state.amperage); | |
3f86b832 | 654 | if (result) { |
6845118b VL |
655 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
656 | "acpi_sbs_read_word() failed")); | |
3f86b832 RT |
657 | goto end; |
658 | } | |
659 | ||
6d15702c VL |
660 | result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x0f, |
661 | &battery->state.remaining_capacity); | |
3f86b832 | 662 | if (result) { |
6845118b VL |
663 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
664 | "acpi_sbs_read_word() failed")); | |
3f86b832 RT |
665 | goto end; |
666 | } | |
667 | ||
6d15702c | 668 | result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x16, |
72206233 | 669 | &battery->state.battery_state); |
3f86b832 | 670 | if (result) { |
6845118b VL |
671 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
672 | "acpi_sbs_read_word() failed")); | |
3f86b832 RT |
673 | goto end; |
674 | } | |
675 | ||
3f86b832 | 676 | end: |
635227ee | 677 | return result; |
3f86b832 RT |
678 | } |
679 | ||
680 | static int acpi_battery_get_alarm(struct acpi_battery *battery) | |
681 | { | |
6d15702c | 682 | struct acpi_sbs *sbs = battery->sbs; |
3f86b832 RT |
683 | int result = 0; |
684 | ||
6d15702c VL |
685 | result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x01, |
686 | &battery->alarm.remaining_capacity); | |
3f86b832 | 687 | if (result) { |
6845118b VL |
688 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
689 | "acpi_sbs_read_word() failed")); | |
3f86b832 RT |
690 | goto end; |
691 | } | |
692 | ||
3f86b832 RT |
693 | end: |
694 | ||
635227ee | 695 | return result; |
3f86b832 RT |
696 | } |
697 | ||
698 | static int acpi_battery_set_alarm(struct acpi_battery *battery, | |
699 | unsigned long alarm) | |
700 | { | |
6d15702c | 701 | struct acpi_sbs *sbs = battery->sbs; |
3f86b832 RT |
702 | int result = 0; |
703 | s16 battery_mode; | |
704 | int foo; | |
705 | ||
3f86b832 RT |
706 | result = acpi_battery_select(battery); |
707 | if (result) { | |
6845118b VL |
708 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
709 | "acpi_battery_select() failed")); | |
3f86b832 RT |
710 | goto end; |
711 | } | |
712 | ||
713 | /* If necessary, enable the alarm */ | |
714 | ||
715 | if (alarm > 0) { | |
716 | result = | |
6d15702c VL |
717 | acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x03, |
718 | &battery_mode); | |
3f86b832 | 719 | if (result) { |
6845118b VL |
720 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
721 | "acpi_sbs_read_word() failed")); | |
3f86b832 RT |
722 | goto end; |
723 | } | |
724 | ||
725 | result = | |
6d15702c VL |
726 | acpi_sbs_write_word(sbs, ACPI_SB_SMBUS_ADDR, 0x01, |
727 | battery_mode & 0xbfff); | |
3f86b832 | 728 | if (result) { |
6845118b VL |
729 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
730 | "acpi_sbs_write_word() failed")); | |
3f86b832 RT |
731 | goto end; |
732 | } | |
733 | } | |
734 | ||
735 | foo = alarm / (battery->info.capacity_mode ? 10 : 1); | |
6d15702c | 736 | result = acpi_sbs_write_word(sbs, ACPI_SB_SMBUS_ADDR, 0x01, foo); |
3f86b832 | 737 | if (result) { |
6845118b VL |
738 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
739 | "acpi_sbs_write_word() failed")); | |
3f86b832 RT |
740 | goto end; |
741 | } | |
742 | ||
743 | end: | |
744 | ||
635227ee | 745 | return result; |
3f86b832 RT |
746 | } |
747 | ||
748 | static int acpi_battery_set_mode(struct acpi_battery *battery) | |
749 | { | |
72206233 | 750 | struct acpi_sbs *sbs = battery->sbs; |
3f86b832 RT |
751 | int result = 0; |
752 | s16 battery_mode; | |
753 | ||
3f86b832 RT |
754 | if (capacity_mode == DEF_CAPACITY_UNIT) { |
755 | goto end; | |
756 | } | |
757 | ||
72206233 | 758 | result = acpi_sbs_read_word(sbs, |
6d15702c | 759 | ACPI_SB_SMBUS_ADDR, 0x03, &battery_mode); |
3f86b832 | 760 | if (result) { |
6845118b VL |
761 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
762 | "acpi_sbs_read_word() failed")); | |
3f86b832 RT |
763 | goto end; |
764 | } | |
765 | ||
766 | if (capacity_mode == MAH_CAPACITY_UNIT) { | |
767 | battery_mode &= 0x7fff; | |
768 | } else { | |
769 | battery_mode |= 0x8000; | |
770 | } | |
72206233 | 771 | result = acpi_sbs_write_word(sbs, |
6d15702c | 772 | ACPI_SB_SMBUS_ADDR, 0x03, battery_mode); |
3f86b832 | 773 | if (result) { |
6845118b VL |
774 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
775 | "acpi_sbs_write_word() failed")); | |
3f86b832 RT |
776 | goto end; |
777 | } | |
778 | ||
72206233 | 779 | result = acpi_sbs_read_word(sbs, |
6d15702c | 780 | ACPI_SB_SMBUS_ADDR, 0x03, &battery_mode); |
3f86b832 | 781 | if (result) { |
6845118b VL |
782 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
783 | "acpi_sbs_read_word() failed")); | |
3f86b832 RT |
784 | goto end; |
785 | } | |
786 | ||
787 | end: | |
635227ee | 788 | return result; |
3f86b832 RT |
789 | } |
790 | ||
791 | static int acpi_battery_init(struct acpi_battery *battery) | |
792 | { | |
793 | int result = 0; | |
794 | ||
3f86b832 RT |
795 | result = acpi_battery_select(battery); |
796 | if (result) { | |
6845118b | 797 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
72206233 | 798 | "acpi_battery_select() failed")); |
3f86b832 RT |
799 | goto end; |
800 | } | |
801 | ||
802 | result = acpi_battery_set_mode(battery); | |
803 | if (result) { | |
6845118b VL |
804 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
805 | "acpi_battery_set_mode() failed")); | |
3f86b832 RT |
806 | goto end; |
807 | } | |
808 | ||
809 | result = acpi_battery_get_info(battery); | |
810 | if (result) { | |
6845118b VL |
811 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
812 | "acpi_battery_get_info() failed")); | |
3f86b832 RT |
813 | goto end; |
814 | } | |
815 | ||
816 | result = acpi_battery_get_state(battery); | |
817 | if (result) { | |
6845118b VL |
818 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
819 | "acpi_battery_get_state() failed")); | |
3f86b832 RT |
820 | goto end; |
821 | } | |
822 | ||
823 | result = acpi_battery_get_alarm(battery); | |
824 | if (result) { | |
6845118b VL |
825 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
826 | "acpi_battery_get_alarm() failed")); | |
3f86b832 RT |
827 | goto end; |
828 | } | |
829 | ||
830 | end: | |
635227ee | 831 | return result; |
3f86b832 RT |
832 | } |
833 | ||
834 | static int acpi_ac_get_present(struct acpi_sbs *sbs) | |
835 | { | |
3f86b832 RT |
836 | int result = 0; |
837 | s16 charger_status; | |
838 | ||
6d15702c VL |
839 | result = acpi_sbs_read_word(sbs, ACPI_SBC_SMBUS_ADDR, 0x13, |
840 | &charger_status); | |
3f86b832 RT |
841 | |
842 | if (result) { | |
6845118b VL |
843 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
844 | "acpi_sbs_read_word() failed")); | |
3f86b832 RT |
845 | goto end; |
846 | } | |
847 | ||
72206233 | 848 | sbs->ac.ac_present = (charger_status & 0x8000) >> 15; |
3f86b832 RT |
849 | |
850 | end: | |
851 | ||
635227ee | 852 | return result; |
3f86b832 RT |
853 | } |
854 | ||
855 | /* -------------------------------------------------------------------------- | |
856 | FS Interface (/proc/acpi) | |
857 | -------------------------------------------------------------------------- */ | |
858 | ||
859 | /* Generic Routines */ | |
860 | ||
861 | static int | |
862 | acpi_sbs_generic_add_fs(struct proc_dir_entry **dir, | |
863 | struct proc_dir_entry *parent_dir, | |
864 | char *dir_name, | |
865 | struct file_operations *info_fops, | |
866 | struct file_operations *state_fops, | |
867 | struct file_operations *alarm_fops, void *data) | |
868 | { | |
869 | struct proc_dir_entry *entry = NULL; | |
870 | ||
3f86b832 RT |
871 | if (!*dir) { |
872 | *dir = proc_mkdir(dir_name, parent_dir); | |
873 | if (!*dir) { | |
6845118b VL |
874 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
875 | "proc_mkdir() failed")); | |
635227ee | 876 | return -ENODEV; |
3f86b832 RT |
877 | } |
878 | (*dir)->owner = THIS_MODULE; | |
879 | } | |
880 | ||
881 | /* 'info' [R] */ | |
882 | if (info_fops) { | |
883 | entry = create_proc_entry(ACPI_SBS_FILE_INFO, S_IRUGO, *dir); | |
884 | if (!entry) { | |
6845118b VL |
885 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
886 | "create_proc_entry() failed")); | |
3f86b832 RT |
887 | } else { |
888 | entry->proc_fops = info_fops; | |
889 | entry->data = data; | |
890 | entry->owner = THIS_MODULE; | |
891 | } | |
892 | } | |
893 | ||
894 | /* 'state' [R] */ | |
895 | if (state_fops) { | |
896 | entry = create_proc_entry(ACPI_SBS_FILE_STATE, S_IRUGO, *dir); | |
897 | if (!entry) { | |
6845118b VL |
898 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
899 | "create_proc_entry() failed")); | |
3f86b832 RT |
900 | } else { |
901 | entry->proc_fops = state_fops; | |
902 | entry->data = data; | |
903 | entry->owner = THIS_MODULE; | |
904 | } | |
905 | } | |
906 | ||
907 | /* 'alarm' [R/W] */ | |
908 | if (alarm_fops) { | |
909 | entry = create_proc_entry(ACPI_SBS_FILE_ALARM, S_IRUGO, *dir); | |
910 | if (!entry) { | |
6845118b VL |
911 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
912 | "create_proc_entry() failed")); | |
3f86b832 RT |
913 | } else { |
914 | entry->proc_fops = alarm_fops; | |
915 | entry->data = data; | |
916 | entry->owner = THIS_MODULE; | |
917 | } | |
918 | } | |
919 | ||
635227ee | 920 | return 0; |
3f86b832 RT |
921 | } |
922 | ||
923 | static void | |
924 | acpi_sbs_generic_remove_fs(struct proc_dir_entry **dir, | |
925 | struct proc_dir_entry *parent_dir) | |
926 | { | |
3f86b832 RT |
927 | |
928 | if (*dir) { | |
929 | remove_proc_entry(ACPI_SBS_FILE_INFO, *dir); | |
930 | remove_proc_entry(ACPI_SBS_FILE_STATE, *dir); | |
931 | remove_proc_entry(ACPI_SBS_FILE_ALARM, *dir); | |
932 | remove_proc_entry((*dir)->name, parent_dir); | |
933 | *dir = NULL; | |
934 | } | |
935 | ||
936 | } | |
937 | ||
938 | /* Smart Battery Interface */ | |
939 | ||
940 | static struct proc_dir_entry *acpi_battery_dir = NULL; | |
941 | ||
942 | static int acpi_battery_read_info(struct seq_file *seq, void *offset) | |
943 | { | |
50dd0969 | 944 | struct acpi_battery *battery = seq->private; |
72206233 | 945 | struct acpi_sbs *sbs = battery->sbs; |
3f86b832 RT |
946 | int cscale; |
947 | int result = 0; | |
948 | ||
72206233 | 949 | if (sbs_mutex_lock(sbs)) { |
635227ee | 950 | return -ENODEV; |
3f86b832 RT |
951 | } |
952 | ||
72206233 VL |
953 | result = acpi_check_update_proc(sbs); |
954 | if (result) | |
955 | goto end; | |
3f86b832 | 956 | |
72206233 VL |
957 | if (update_time == 0) { |
958 | result = acpi_sbs_update_run(sbs, battery->id, DATA_TYPE_INFO); | |
3f86b832 | 959 | if (result) { |
6845118b VL |
960 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
961 | "acpi_sbs_update_run() failed")); | |
3f86b832 RT |
962 | } |
963 | } | |
964 | ||
72206233 | 965 | if (battery->battery_present) { |
3f86b832 RT |
966 | seq_printf(seq, "present: yes\n"); |
967 | } else { | |
968 | seq_printf(seq, "present: no\n"); | |
969 | goto end; | |
970 | } | |
971 | ||
972 | if (battery->info.capacity_mode) { | |
973 | cscale = battery->info.vscale * battery->info.ipscale; | |
974 | } else { | |
975 | cscale = battery->info.ipscale; | |
976 | } | |
72206233 | 977 | seq_printf(seq, "design capacity: %i%s\n", |
3f86b832 | 978 | battery->info.design_capacity * cscale, |
72206233 | 979 | battery->info.capacity_mode ? "0 mWh" : " mAh"); |
3f86b832 | 980 | |
72206233 | 981 | seq_printf(seq, "last full capacity: %i%s\n", |
3f86b832 | 982 | battery->info.full_charge_capacity * cscale, |
72206233 | 983 | battery->info.capacity_mode ? "0 mWh" : " mAh"); |
3f86b832 RT |
984 | |
985 | seq_printf(seq, "battery technology: rechargeable\n"); | |
986 | ||
987 | seq_printf(seq, "design voltage: %i mV\n", | |
988 | battery->info.design_voltage * battery->info.vscale); | |
989 | ||
990 | seq_printf(seq, "design capacity warning: unknown\n"); | |
991 | seq_printf(seq, "design capacity low: unknown\n"); | |
992 | seq_printf(seq, "capacity granularity 1: unknown\n"); | |
993 | seq_printf(seq, "capacity granularity 2: unknown\n"); | |
994 | ||
995 | seq_printf(seq, "model number: %s\n", | |
996 | battery->info.device_name); | |
997 | ||
998 | seq_printf(seq, "serial number: %i\n", | |
999 | battery->info.serial_number); | |
1000 | ||
1001 | seq_printf(seq, "battery type: %s\n", | |
1002 | battery->info.device_chemistry); | |
1003 | ||
1004 | seq_printf(seq, "OEM info: %s\n", | |
1005 | battery->info.manufacturer_name); | |
1006 | ||
1007 | end: | |
1008 | ||
72206233 | 1009 | sbs_mutex_unlock(sbs); |
3f86b832 | 1010 | |
635227ee | 1011 | return result; |
3f86b832 RT |
1012 | } |
1013 | ||
1014 | static int acpi_battery_info_open_fs(struct inode *inode, struct file *file) | |
1015 | { | |
1016 | return single_open(file, acpi_battery_read_info, PDE(inode)->data); | |
1017 | } | |
1018 | ||
1019 | static int acpi_battery_read_state(struct seq_file *seq, void *offset) | |
1020 | { | |
72206233 VL |
1021 | struct acpi_battery *battery = seq->private; |
1022 | struct acpi_sbs *sbs = battery->sbs; | |
3f86b832 RT |
1023 | int result = 0; |
1024 | int cscale; | |
1025 | int foo; | |
1026 | ||
72206233 | 1027 | if (sbs_mutex_lock(sbs)) { |
635227ee | 1028 | return -ENODEV; |
3f86b832 RT |
1029 | } |
1030 | ||
72206233 VL |
1031 | result = acpi_check_update_proc(sbs); |
1032 | if (result) | |
1033 | goto end; | |
3f86b832 | 1034 | |
72206233 VL |
1035 | if (update_time == 0) { |
1036 | result = acpi_sbs_update_run(sbs, battery->id, DATA_TYPE_STATE); | |
3f86b832 | 1037 | if (result) { |
6845118b VL |
1038 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1039 | "acpi_sbs_update_run() failed")); | |
3f86b832 RT |
1040 | } |
1041 | } | |
1042 | ||
72206233 | 1043 | if (battery->battery_present) { |
3f86b832 RT |
1044 | seq_printf(seq, "present: yes\n"); |
1045 | } else { | |
1046 | seq_printf(seq, "present: no\n"); | |
1047 | goto end; | |
1048 | } | |
1049 | ||
1050 | if (battery->info.capacity_mode) { | |
1051 | cscale = battery->info.vscale * battery->info.ipscale; | |
1052 | } else { | |
1053 | cscale = battery->info.ipscale; | |
1054 | } | |
1055 | ||
72206233 | 1056 | if (battery->state.battery_state & 0x0010) { |
3f86b832 RT |
1057 | seq_printf(seq, "capacity state: critical\n"); |
1058 | } else { | |
1059 | seq_printf(seq, "capacity state: ok\n"); | |
1060 | } | |
e6d0f562 VL |
1061 | |
1062 | foo = (s16) battery->state.amperage * battery->info.ipscale; | |
1063 | if (battery->info.capacity_mode) { | |
1064 | foo = foo * battery->info.design_voltage / 1000; | |
1065 | } | |
3f86b832 RT |
1066 | if (battery->state.amperage < 0) { |
1067 | seq_printf(seq, "charging state: discharging\n"); | |
e6d0f562 VL |
1068 | seq_printf(seq, "present rate: %d %s\n", |
1069 | -foo, battery->info.capacity_mode ? "mW" : "mA"); | |
3f86b832 RT |
1070 | } else if (battery->state.amperage > 0) { |
1071 | seq_printf(seq, "charging state: charging\n"); | |
e6d0f562 VL |
1072 | seq_printf(seq, "present rate: %d %s\n", |
1073 | foo, battery->info.capacity_mode ? "mW" : "mA"); | |
3f86b832 RT |
1074 | } else { |
1075 | seq_printf(seq, "charging state: charged\n"); | |
1076 | seq_printf(seq, "present rate: 0 %s\n", | |
1077 | battery->info.capacity_mode ? "mW" : "mA"); | |
1078 | } | |
1079 | ||
72206233 | 1080 | seq_printf(seq, "remaining capacity: %i%s\n", |
3f86b832 | 1081 | battery->state.remaining_capacity * cscale, |
72206233 | 1082 | battery->info.capacity_mode ? "0 mWh" : " mAh"); |
3f86b832 RT |
1083 | |
1084 | seq_printf(seq, "present voltage: %i mV\n", | |
1085 | battery->state.voltage * battery->info.vscale); | |
1086 | ||
1087 | end: | |
1088 | ||
72206233 | 1089 | sbs_mutex_unlock(sbs); |
3f86b832 | 1090 | |
635227ee | 1091 | return result; |
3f86b832 RT |
1092 | } |
1093 | ||
1094 | static int acpi_battery_state_open_fs(struct inode *inode, struct file *file) | |
1095 | { | |
1096 | return single_open(file, acpi_battery_read_state, PDE(inode)->data); | |
1097 | } | |
1098 | ||
1099 | static int acpi_battery_read_alarm(struct seq_file *seq, void *offset) | |
1100 | { | |
50dd0969 | 1101 | struct acpi_battery *battery = seq->private; |
72206233 | 1102 | struct acpi_sbs *sbs = battery->sbs; |
3f86b832 RT |
1103 | int result = 0; |
1104 | int cscale; | |
1105 | ||
72206233 | 1106 | if (sbs_mutex_lock(sbs)) { |
635227ee | 1107 | return -ENODEV; |
3f86b832 RT |
1108 | } |
1109 | ||
72206233 VL |
1110 | result = acpi_check_update_proc(sbs); |
1111 | if (result) | |
1112 | goto end; | |
3f86b832 | 1113 | |
72206233 VL |
1114 | if (update_time == 0) { |
1115 | result = acpi_sbs_update_run(sbs, battery->id, DATA_TYPE_ALARM); | |
3f86b832 | 1116 | if (result) { |
6845118b VL |
1117 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1118 | "acpi_sbs_update_run() failed")); | |
3f86b832 RT |
1119 | } |
1120 | } | |
1121 | ||
72206233 | 1122 | if (!battery->battery_present) { |
3f86b832 RT |
1123 | seq_printf(seq, "present: no\n"); |
1124 | goto end; | |
1125 | } | |
1126 | ||
1127 | if (battery->info.capacity_mode) { | |
1128 | cscale = battery->info.vscale * battery->info.ipscale; | |
1129 | } else { | |
1130 | cscale = battery->info.ipscale; | |
1131 | } | |
1132 | ||
1133 | seq_printf(seq, "alarm: "); | |
1134 | if (battery->alarm.remaining_capacity) { | |
72206233 | 1135 | seq_printf(seq, "%i%s\n", |
3f86b832 | 1136 | battery->alarm.remaining_capacity * cscale, |
72206233 | 1137 | battery->info.capacity_mode ? "0 mWh" : " mAh"); |
3f86b832 RT |
1138 | } else { |
1139 | seq_printf(seq, "disabled\n"); | |
1140 | } | |
1141 | ||
1142 | end: | |
1143 | ||
72206233 | 1144 | sbs_mutex_unlock(sbs); |
3f86b832 | 1145 | |
635227ee | 1146 | return result; |
3f86b832 RT |
1147 | } |
1148 | ||
1149 | static ssize_t | |
1150 | acpi_battery_write_alarm(struct file *file, const char __user * buffer, | |
1151 | size_t count, loff_t * ppos) | |
1152 | { | |
50dd0969 JE |
1153 | struct seq_file *seq = file->private_data; |
1154 | struct acpi_battery *battery = seq->private; | |
72206233 | 1155 | struct acpi_sbs *sbs = battery->sbs; |
3f86b832 RT |
1156 | char alarm_string[12] = { '\0' }; |
1157 | int result, old_alarm, new_alarm; | |
1158 | ||
72206233 | 1159 | if (sbs_mutex_lock(sbs)) { |
635227ee | 1160 | return -ENODEV; |
3f86b832 RT |
1161 | } |
1162 | ||
72206233 VL |
1163 | result = acpi_check_update_proc(sbs); |
1164 | if (result) | |
1165 | goto end; | |
3f86b832 | 1166 | |
72206233 | 1167 | if (!battery->battery_present) { |
3f86b832 RT |
1168 | result = -ENODEV; |
1169 | goto end; | |
1170 | } | |
1171 | ||
1172 | if (count > sizeof(alarm_string) - 1) { | |
1173 | result = -EINVAL; | |
1174 | goto end; | |
1175 | } | |
1176 | ||
1177 | if (copy_from_user(alarm_string, buffer, count)) { | |
1178 | result = -EFAULT; | |
1179 | goto end; | |
1180 | } | |
1181 | ||
1182 | alarm_string[count] = 0; | |
1183 | ||
1184 | old_alarm = battery->alarm.remaining_capacity; | |
1185 | new_alarm = simple_strtoul(alarm_string, NULL, 0); | |
1186 | ||
1187 | result = acpi_battery_set_alarm(battery, new_alarm); | |
1188 | if (result) { | |
6845118b VL |
1189 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1190 | "acpi_battery_set_alarm() failed")); | |
50dd0969 | 1191 | acpi_battery_set_alarm(battery, old_alarm); |
3f86b832 RT |
1192 | goto end; |
1193 | } | |
1194 | result = acpi_battery_get_alarm(battery); | |
1195 | if (result) { | |
6845118b VL |
1196 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1197 | "acpi_battery_get_alarm() failed")); | |
50dd0969 | 1198 | acpi_battery_set_alarm(battery, old_alarm); |
3f86b832 RT |
1199 | goto end; |
1200 | } | |
1201 | ||
1202 | end: | |
72206233 | 1203 | sbs_mutex_unlock(sbs); |
3f86b832 RT |
1204 | |
1205 | if (result) { | |
635227ee | 1206 | return result; |
3f86b832 | 1207 | } else { |
635227ee | 1208 | return count; |
3f86b832 RT |
1209 | } |
1210 | } | |
1211 | ||
1212 | static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file) | |
1213 | { | |
1214 | return single_open(file, acpi_battery_read_alarm, PDE(inode)->data); | |
1215 | } | |
1216 | ||
1217 | static struct file_operations acpi_battery_info_fops = { | |
1218 | .open = acpi_battery_info_open_fs, | |
1219 | .read = seq_read, | |
1220 | .llseek = seq_lseek, | |
1221 | .release = single_release, | |
1222 | .owner = THIS_MODULE, | |
1223 | }; | |
1224 | ||
1225 | static struct file_operations acpi_battery_state_fops = { | |
1226 | .open = acpi_battery_state_open_fs, | |
1227 | .read = seq_read, | |
1228 | .llseek = seq_lseek, | |
1229 | .release = single_release, | |
1230 | .owner = THIS_MODULE, | |
1231 | }; | |
1232 | ||
1233 | static struct file_operations acpi_battery_alarm_fops = { | |
1234 | .open = acpi_battery_alarm_open_fs, | |
1235 | .read = seq_read, | |
1236 | .write = acpi_battery_write_alarm, | |
1237 | .llseek = seq_lseek, | |
1238 | .release = single_release, | |
1239 | .owner = THIS_MODULE, | |
1240 | }; | |
1241 | ||
1242 | /* Legacy AC Adapter Interface */ | |
1243 | ||
1244 | static struct proc_dir_entry *acpi_ac_dir = NULL; | |
1245 | ||
1246 | static int acpi_ac_read_state(struct seq_file *seq, void *offset) | |
1247 | { | |
50dd0969 | 1248 | struct acpi_sbs *sbs = seq->private; |
3f86b832 RT |
1249 | int result; |
1250 | ||
72206233 | 1251 | if (sbs_mutex_lock(sbs)) { |
635227ee | 1252 | return -ENODEV; |
3f86b832 RT |
1253 | } |
1254 | ||
72206233 VL |
1255 | if (update_time == 0) { |
1256 | result = acpi_sbs_update_run(sbs, -1, DATA_TYPE_AC_STATE); | |
3f86b832 | 1257 | if (result) { |
6845118b VL |
1258 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1259 | "acpi_sbs_update_run() failed")); | |
3f86b832 RT |
1260 | } |
1261 | } | |
1262 | ||
1263 | seq_printf(seq, "state: %s\n", | |
72206233 | 1264 | sbs->ac.ac_present ? "on-line" : "off-line"); |
3f86b832 | 1265 | |
72206233 | 1266 | sbs_mutex_unlock(sbs); |
3f86b832 | 1267 | |
635227ee | 1268 | return 0; |
3f86b832 RT |
1269 | } |
1270 | ||
1271 | static int acpi_ac_state_open_fs(struct inode *inode, struct file *file) | |
1272 | { | |
1273 | return single_open(file, acpi_ac_read_state, PDE(inode)->data); | |
1274 | } | |
1275 | ||
1276 | static struct file_operations acpi_ac_state_fops = { | |
1277 | .open = acpi_ac_state_open_fs, | |
1278 | .read = seq_read, | |
1279 | .llseek = seq_lseek, | |
1280 | .release = single_release, | |
1281 | .owner = THIS_MODULE, | |
1282 | }; | |
1283 | ||
1284 | /* -------------------------------------------------------------------------- | |
1285 | Driver Interface | |
1286 | -------------------------------------------------------------------------- */ | |
1287 | ||
1288 | /* Smart Battery */ | |
1289 | ||
1290 | static int acpi_battery_add(struct acpi_sbs *sbs, int id) | |
1291 | { | |
1292 | int is_present; | |
1293 | int result; | |
1294 | char dir_name[32]; | |
1295 | struct acpi_battery *battery; | |
1296 | ||
3f86b832 RT |
1297 | battery = &sbs->battery[id]; |
1298 | ||
1299 | battery->alive = 0; | |
1300 | ||
1301 | battery->init_state = 0; | |
1302 | battery->id = id; | |
1303 | battery->sbs = sbs; | |
1304 | ||
1305 | result = acpi_battery_select(battery); | |
1306 | if (result) { | |
6845118b VL |
1307 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1308 | "acpi_battery_select() failed")); | |
3f86b832 RT |
1309 | goto end; |
1310 | } | |
1311 | ||
1312 | result = acpi_battery_get_present(battery); | |
1313 | if (result) { | |
6845118b VL |
1314 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1315 | "acpi_battery_get_present() failed")); | |
3f86b832 RT |
1316 | goto end; |
1317 | } | |
1318 | ||
72206233 | 1319 | is_present = battery->battery_present; |
3f86b832 RT |
1320 | |
1321 | if (is_present) { | |
1322 | result = acpi_battery_init(battery); | |
1323 | if (result) { | |
6845118b VL |
1324 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1325 | "acpi_battery_init() failed")); | |
3f86b832 RT |
1326 | goto end; |
1327 | } | |
1328 | battery->init_state = 1; | |
1329 | } | |
1330 | ||
50dd0969 | 1331 | sprintf(dir_name, ACPI_BATTERY_DIR_NAME, id); |
3f86b832 RT |
1332 | |
1333 | result = acpi_sbs_generic_add_fs(&battery->battery_entry, | |
1334 | acpi_battery_dir, | |
1335 | dir_name, | |
1336 | &acpi_battery_info_fops, | |
1337 | &acpi_battery_state_fops, | |
1338 | &acpi_battery_alarm_fops, battery); | |
1339 | if (result) { | |
6845118b VL |
1340 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1341 | "acpi_sbs_generic_add_fs() failed")); | |
3f86b832 RT |
1342 | goto end; |
1343 | } | |
1344 | battery->alive = 1; | |
1345 | ||
72206233 VL |
1346 | printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n", |
1347 | ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), dir_name, | |
1348 | sbs->battery->battery_present ? "present" : "absent"); | |
1349 | ||
3f86b832 | 1350 | end: |
635227ee | 1351 | return result; |
3f86b832 RT |
1352 | } |
1353 | ||
1354 | static void acpi_battery_remove(struct acpi_sbs *sbs, int id) | |
1355 | { | |
3f86b832 RT |
1356 | |
1357 | if (sbs->battery[id].battery_entry) { | |
1358 | acpi_sbs_generic_remove_fs(&(sbs->battery[id].battery_entry), | |
1359 | acpi_battery_dir); | |
1360 | } | |
1361 | } | |
1362 | ||
1363 | static int acpi_ac_add(struct acpi_sbs *sbs) | |
1364 | { | |
1365 | int result; | |
1366 | ||
3f86b832 RT |
1367 | result = acpi_ac_get_present(sbs); |
1368 | if (result) { | |
6845118b VL |
1369 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1370 | "acpi_ac_get_present() failed")); | |
3f86b832 RT |
1371 | goto end; |
1372 | } | |
1373 | ||
1374 | result = acpi_sbs_generic_add_fs(&sbs->ac_entry, | |
1375 | acpi_ac_dir, | |
1376 | ACPI_AC_DIR_NAME, | |
1377 | NULL, &acpi_ac_state_fops, NULL, sbs); | |
1378 | if (result) { | |
6845118b VL |
1379 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1380 | "acpi_sbs_generic_add_fs() failed")); | |
3f86b832 RT |
1381 | goto end; |
1382 | } | |
1383 | ||
72206233 VL |
1384 | printk(KERN_INFO PREFIX "%s [%s]: AC Adapter [%s] (%s)\n", |
1385 | ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), | |
1386 | ACPI_AC_DIR_NAME, sbs->ac.ac_present ? "on-line" : "off-line"); | |
1387 | ||
3f86b832 RT |
1388 | end: |
1389 | ||
635227ee | 1390 | return result; |
3f86b832 RT |
1391 | } |
1392 | ||
1393 | static void acpi_ac_remove(struct acpi_sbs *sbs) | |
1394 | { | |
3f86b832 RT |
1395 | |
1396 | if (sbs->ac_entry) { | |
1397 | acpi_sbs_generic_remove_fs(&sbs->ac_entry, acpi_ac_dir); | |
1398 | } | |
1399 | } | |
1400 | ||
72206233 | 1401 | static void acpi_sbs_update_time_run(unsigned long data) |
3f86b832 | 1402 | { |
72206233 | 1403 | acpi_os_execute(OSL_GPE_HANDLER, acpi_sbs_update_time, (void *)data); |
3f86b832 RT |
1404 | } |
1405 | ||
72206233 | 1406 | static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type) |
3f86b832 RT |
1407 | { |
1408 | struct acpi_battery *battery; | |
72206233 VL |
1409 | int result = 0, cnt; |
1410 | int old_ac_present = -1; | |
1411 | int old_battery_present = -1; | |
1412 | int new_ac_present = -1; | |
1413 | int new_battery_present = -1; | |
1414 | int id_min = 0, id_max = MAX_SBS_BAT - 1; | |
3f86b832 | 1415 | char dir_name[32]; |
72206233 VL |
1416 | int do_battery_init = 0, do_ac_init = 0; |
1417 | int old_remaining_capacity = 0; | |
bc90a010 | 1418 | int update_battery = 1; |
72206233 VL |
1419 | int up_tm = update_time; |
1420 | ||
1421 | if (sbs_zombie(sbs)) { | |
1422 | goto end; | |
1423 | } | |
3f86b832 | 1424 | |
72206233 VL |
1425 | if (id >= 0) { |
1426 | id_min = id_max = id; | |
1427 | } | |
1428 | ||
1429 | if (data_type == DATA_TYPE_COMMON && up_tm > 0) { | |
1430 | cnt = up_tm / (up_tm > UPDATE_DELAY ? UPDATE_DELAY : up_tm); | |
1431 | if (sbs->run_cnt % cnt != 0) { | |
1432 | update_battery = 0; | |
1433 | } | |
1434 | } | |
1435 | ||
1436 | sbs->run_cnt++; | |
1437 | ||
72206233 | 1438 | old_ac_present = sbs->ac.ac_present; |
3f86b832 RT |
1439 | |
1440 | result = acpi_ac_get_present(sbs); | |
1441 | if (result) { | |
6845118b VL |
1442 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1443 | "acpi_ac_get_present() failed")); | |
3f86b832 RT |
1444 | } |
1445 | ||
72206233 | 1446 | new_ac_present = sbs->ac.ac_present; |
3f86b832 RT |
1447 | |
1448 | do_ac_init = (old_ac_present != new_ac_present); | |
72206233 VL |
1449 | if (sbs->run_cnt == 1 && data_type == DATA_TYPE_COMMON) { |
1450 | do_ac_init = 1; | |
1451 | } | |
3f86b832 | 1452 | |
72206233 VL |
1453 | if (do_ac_init) { |
1454 | result = acpi_sbs_generate_event(sbs->device, | |
1455 | ACPI_SBS_AC_NOTIFY_STATUS, | |
1456 | new_ac_present, | |
1457 | ACPI_AC_DIR_NAME, | |
1458 | ACPI_AC_CLASS); | |
1459 | if (result) { | |
1460 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, | |
1461 | "acpi_sbs_generate_event() failed")); | |
1462 | } | |
1463 | } | |
1464 | ||
1465 | if (data_type == DATA_TYPE_COMMON) { | |
1466 | if (!do_ac_init && !update_battery) { | |
1467 | goto end; | |
1468 | } | |
1469 | } | |
1470 | ||
1471 | if (data_type == DATA_TYPE_AC_STATE && !do_ac_init) { | |
3f86b832 RT |
1472 | goto end; |
1473 | } | |
1474 | ||
72206233 | 1475 | for (id = id_min; id <= id_max; id++) { |
3f86b832 RT |
1476 | battery = &sbs->battery[id]; |
1477 | if (battery->alive == 0) { | |
1478 | continue; | |
1479 | } | |
1480 | ||
1481 | old_remaining_capacity = battery->state.remaining_capacity; | |
1482 | ||
72206233 | 1483 | old_battery_present = battery->battery_present; |
3f86b832 RT |
1484 | |
1485 | result = acpi_battery_select(battery); | |
1486 | if (result) { | |
6845118b VL |
1487 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1488 | "acpi_battery_select() failed")); | |
3f86b832 | 1489 | } |
3f86b832 RT |
1490 | |
1491 | result = acpi_battery_get_present(battery); | |
1492 | if (result) { | |
6845118b VL |
1493 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1494 | "acpi_battery_get_present() failed")); | |
3f86b832 | 1495 | } |
3f86b832 | 1496 | |
72206233 | 1497 | new_battery_present = battery->battery_present; |
3f86b832 RT |
1498 | |
1499 | do_battery_init = ((old_battery_present != new_battery_present) | |
1500 | && new_battery_present); | |
72206233 VL |
1501 | if (!new_battery_present) |
1502 | goto event; | |
1503 | if (do_ac_init || do_battery_init) { | |
3f86b832 RT |
1504 | result = acpi_battery_init(battery); |
1505 | if (result) { | |
6845118b VL |
1506 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1507 | "acpi_battery_init() " | |
1508 | "failed")); | |
3f86b832 RT |
1509 | } |
1510 | } | |
72206233 | 1511 | if (sbs_zombie(sbs)) { |
3f86b832 RT |
1512 | goto end; |
1513 | } | |
72206233 VL |
1514 | |
1515 | if ((data_type == DATA_TYPE_COMMON | |
1516 | || data_type == DATA_TYPE_INFO) | |
1517 | && new_battery_present) { | |
1518 | result = acpi_battery_get_info(battery); | |
3f86b832 | 1519 | if (result) { |
6845118b | 1520 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
72206233 | 1521 | "acpi_battery_get_info() failed")); |
3f86b832 | 1522 | } |
72206233 VL |
1523 | } |
1524 | if (data_type == DATA_TYPE_INFO) { | |
1525 | continue; | |
1526 | } | |
1527 | if (sbs_zombie(sbs)) { | |
1528 | goto end; | |
1529 | } | |
3f86b832 | 1530 | |
72206233 VL |
1531 | if ((data_type == DATA_TYPE_COMMON |
1532 | || data_type == DATA_TYPE_STATE) | |
1533 | && new_battery_present) { | |
3f86b832 RT |
1534 | result = acpi_battery_get_state(battery); |
1535 | if (result) { | |
6845118b | 1536 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
72206233 | 1537 | "acpi_battery_get_state() failed")); |
3f86b832 RT |
1538 | } |
1539 | } | |
72206233 VL |
1540 | if (data_type == DATA_TYPE_STATE) { |
1541 | goto event; | |
3f86b832 | 1542 | } |
72206233 VL |
1543 | if (sbs_zombie(sbs)) { |
1544 | goto end; | |
3f86b832 RT |
1545 | } |
1546 | ||
72206233 VL |
1547 | if ((data_type == DATA_TYPE_COMMON |
1548 | || data_type == DATA_TYPE_ALARM) | |
1549 | && new_battery_present) { | |
1550 | result = acpi_battery_get_alarm(battery); | |
3f86b832 | 1551 | if (result) { |
6845118b | 1552 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
72206233 | 1553 | "acpi_battery_get_alarm() " |
6845118b | 1554 | "failed")); |
3f86b832 RT |
1555 | } |
1556 | } | |
72206233 VL |
1557 | if (data_type == DATA_TYPE_ALARM) { |
1558 | continue; | |
1559 | } | |
1560 | if (sbs_zombie(sbs)) { | |
1561 | goto end; | |
1562 | } | |
1563 | ||
1564 | event: | |
1565 | ||
1566 | if (old_battery_present != new_battery_present || do_ac_init || | |
1567 | old_remaining_capacity != | |
1568 | battery->state.remaining_capacity) { | |
50dd0969 | 1569 | sprintf(dir_name, ACPI_BATTERY_DIR_NAME, id); |
3f86b832 RT |
1570 | result = acpi_sbs_generate_event(sbs->device, |
1571 | ACPI_SBS_BATTERY_NOTIFY_STATUS, | |
1572 | new_battery_present, | |
1573 | dir_name, | |
1574 | ACPI_BATTERY_CLASS); | |
1575 | if (result) { | |
6845118b | 1576 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
72206233 VL |
1577 | "acpi_sbs_generate_event() " |
1578 | "failed")); | |
3f86b832 RT |
1579 | } |
1580 | } | |
3f86b832 RT |
1581 | } |
1582 | ||
1583 | end: | |
72206233 | 1584 | |
635227ee | 1585 | return result; |
3f86b832 RT |
1586 | } |
1587 | ||
72206233 | 1588 | static void acpi_sbs_update_time(void *data) |
3f86b832 RT |
1589 | { |
1590 | struct acpi_sbs *sbs = data; | |
1591 | unsigned long delay = -1; | |
1592 | int result; | |
72206233 | 1593 | unsigned int up_tm = update_time; |
3f86b832 | 1594 | |
72206233 VL |
1595 | if (sbs_mutex_lock(sbs)) |
1596 | return; | |
3f86b832 | 1597 | |
72206233 | 1598 | result = acpi_sbs_update_run(sbs, -1, DATA_TYPE_COMMON); |
3f86b832 | 1599 | if (result) { |
6845118b VL |
1600 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1601 | "acpi_sbs_update_run() failed")); | |
3f86b832 RT |
1602 | } |
1603 | ||
72206233 | 1604 | if (sbs_zombie(sbs)) { |
3f86b832 RT |
1605 | goto end; |
1606 | } | |
1607 | ||
72206233 VL |
1608 | if (!up_tm) { |
1609 | if (timer_pending(&sbs->update_timer)) | |
1610 | del_timer(&sbs->update_timer); | |
1611 | } else { | |
1612 | delay = (up_tm > UPDATE_DELAY ? UPDATE_DELAY : up_tm); | |
1613 | delay = jiffies + HZ * delay; | |
1614 | if (timer_pending(&sbs->update_timer)) { | |
1615 | mod_timer(&sbs->update_timer, delay); | |
1616 | } else { | |
1617 | sbs->update_timer.data = (unsigned long)data; | |
1618 | sbs->update_timer.function = acpi_sbs_update_time_run; | |
1619 | sbs->update_timer.expires = delay; | |
1620 | add_timer(&sbs->update_timer); | |
1621 | } | |
3f86b832 RT |
1622 | } |
1623 | ||
3f86b832 | 1624 | end: |
72206233 VL |
1625 | |
1626 | sbs_mutex_unlock(sbs); | |
3f86b832 RT |
1627 | } |
1628 | ||
1629 | static int acpi_sbs_add(struct acpi_device *device) | |
1630 | { | |
1631 | struct acpi_sbs *sbs = NULL; | |
72206233 | 1632 | int result = 0, remove_result = 0; |
6d15702c | 1633 | int id; |
3f86b832 | 1634 | acpi_status status = AE_OK; |
6d15702c VL |
1635 | unsigned long val; |
1636 | ||
1637 | status = | |
addad454 | 1638 | acpi_evaluate_integer(device->handle, "_EC", NULL, &val); |
6d15702c | 1639 | if (ACPI_FAILURE(status)) { |
6845118b | 1640 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, "Error obtaining _EC")); |
6d15702c VL |
1641 | return -EIO; |
1642 | } | |
3f86b832 | 1643 | |
36bcbec7 | 1644 | sbs = kzalloc(sizeof(struct acpi_sbs), GFP_KERNEL); |
3f86b832 | 1645 | if (!sbs) { |
72206233 VL |
1646 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, "kzalloc() failed")); |
1647 | result = -ENOMEM; | |
1648 | goto end; | |
3f86b832 | 1649 | } |
3f86b832 | 1650 | |
72206233 VL |
1651 | mutex_init(&sbs->mutex); |
1652 | ||
1653 | sbs_mutex_lock(sbs); | |
1654 | ||
addad454 | 1655 | sbs->base = 0xff & (val >> 8); |
3f86b832 | 1656 | sbs->device = device; |
3f86b832 RT |
1657 | |
1658 | strcpy(acpi_device_name(device), ACPI_SBS_DEVICE_NAME); | |
1659 | strcpy(acpi_device_class(device), ACPI_SBS_CLASS); | |
1660 | acpi_driver_data(device) = sbs; | |
1661 | ||
3f86b832 RT |
1662 | result = acpi_ac_add(sbs); |
1663 | if (result) { | |
6845118b | 1664 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, "acpi_ac_add() failed")); |
3f86b832 RT |
1665 | goto end; |
1666 | } | |
72206233 | 1667 | |
addad454 AS |
1668 | acpi_sbsm_get_info(sbs); |
1669 | ||
1670 | if (!sbs->sbsm_present) { | |
3f86b832 RT |
1671 | result = acpi_battery_add(sbs, 0); |
1672 | if (result) { | |
6845118b VL |
1673 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1674 | "acpi_battery_add() failed")); | |
3f86b832 RT |
1675 | goto end; |
1676 | } | |
1677 | } else { | |
1678 | for (id = 0; id < MAX_SBS_BAT; id++) { | |
1679 | if ((sbs->sbsm_batteries_supported & (1 << id))) { | |
1680 | result = acpi_battery_add(sbs, id); | |
1681 | if (result) { | |
6845118b | 1682 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
72206233 | 1683 | "acpi_battery_add() failed")); |
3f86b832 RT |
1684 | goto end; |
1685 | } | |
1686 | } | |
1687 | } | |
1688 | } | |
1689 | ||
3f86b832 | 1690 | init_timer(&sbs->update_timer); |
72206233 VL |
1691 | result = acpi_check_update_proc(sbs); |
1692 | if (result) | |
1693 | goto end; | |
3f86b832 RT |
1694 | |
1695 | end: | |
72206233 VL |
1696 | |
1697 | sbs_mutex_unlock(sbs); | |
1698 | ||
3f86b832 | 1699 | if (result) { |
72206233 VL |
1700 | remove_result = acpi_sbs_remove(device, 0); |
1701 | if (remove_result) { | |
1702 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, | |
1703 | "acpi_sbs_remove() failed")); | |
1704 | } | |
3f86b832 RT |
1705 | } |
1706 | ||
635227ee | 1707 | return result; |
3f86b832 RT |
1708 | } |
1709 | ||
72206233 | 1710 | static int acpi_sbs_remove(struct acpi_device *device, int type) |
3f86b832 | 1711 | { |
cece9014 | 1712 | struct acpi_sbs *sbs; |
3f86b832 RT |
1713 | int id; |
1714 | ||
963497c1 LV |
1715 | if (!device) { |
1716 | return -EINVAL; | |
1717 | } | |
1718 | ||
72206233 | 1719 | sbs = acpi_driver_data(device); |
963497c1 | 1720 | if (!sbs) { |
635227ee | 1721 | return -EINVAL; |
3f86b832 RT |
1722 | } |
1723 | ||
72206233 VL |
1724 | sbs_mutex_lock(sbs); |
1725 | ||
3f86b832 | 1726 | sbs->zombie = 1; |
3f86b832 RT |
1727 | del_timer_sync(&sbs->update_timer); |
1728 | acpi_os_wait_events_complete(NULL); | |
1729 | del_timer_sync(&sbs->update_timer); | |
1730 | ||
1731 | for (id = 0; id < MAX_SBS_BAT; id++) { | |
1732 | acpi_battery_remove(sbs, id); | |
1733 | } | |
1734 | ||
1735 | acpi_ac_remove(sbs); | |
1736 | ||
72206233 VL |
1737 | sbs_mutex_unlock(sbs); |
1738 | ||
1739 | mutex_destroy(&sbs->mutex); | |
6d15702c | 1740 | |
3f86b832 RT |
1741 | kfree(sbs); |
1742 | ||
635227ee | 1743 | return 0; |
3f86b832 RT |
1744 | } |
1745 | ||
72206233 VL |
1746 | static void acpi_sbs_rmdirs(void) |
1747 | { | |
1748 | if (acpi_ac_dir) { | |
1749 | acpi_unlock_ac_dir(acpi_ac_dir); | |
1750 | acpi_ac_dir = NULL; | |
1751 | } | |
1752 | if (acpi_battery_dir) { | |
1753 | acpi_unlock_battery_dir(acpi_battery_dir); | |
1754 | acpi_battery_dir = NULL; | |
1755 | } | |
1756 | } | |
1757 | ||
1758 | static int acpi_sbs_resume(struct acpi_device *device) | |
1759 | { | |
1760 | struct acpi_sbs *sbs; | |
1761 | ||
1762 | if (!device) | |
1763 | return -EINVAL; | |
1764 | ||
1765 | sbs = device->driver_data; | |
1766 | ||
1767 | sbs->run_cnt = 0; | |
1768 | ||
1769 | return 0; | |
1770 | } | |
1771 | ||
3f86b832 RT |
1772 | static int __init acpi_sbs_init(void) |
1773 | { | |
1774 | int result = 0; | |
1775 | ||
b20d2aeb LB |
1776 | if (acpi_disabled) |
1777 | return -ENODEV; | |
1778 | ||
3f86b832 RT |
1779 | if (capacity_mode != DEF_CAPACITY_UNIT |
1780 | && capacity_mode != MAH_CAPACITY_UNIT | |
1781 | && capacity_mode != MWH_CAPACITY_UNIT) { | |
72206233 | 1782 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
6845118b | 1783 | "invalid capacity_mode = %d", capacity_mode)); |
635227ee | 1784 | return -EINVAL; |
3f86b832 RT |
1785 | } |
1786 | ||
1787 | acpi_ac_dir = acpi_lock_ac_dir(); | |
1788 | if (!acpi_ac_dir) { | |
6845118b VL |
1789 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1790 | "acpi_lock_ac_dir() failed")); | |
635227ee | 1791 | return -ENODEV; |
3f86b832 RT |
1792 | } |
1793 | ||
1794 | acpi_battery_dir = acpi_lock_battery_dir(); | |
1795 | if (!acpi_battery_dir) { | |
6845118b VL |
1796 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1797 | "acpi_lock_battery_dir() failed")); | |
72206233 | 1798 | acpi_sbs_rmdirs(); |
635227ee | 1799 | return -ENODEV; |
3f86b832 RT |
1800 | } |
1801 | ||
1802 | result = acpi_bus_register_driver(&acpi_sbs_driver); | |
1803 | if (result < 0) { | |
6845118b VL |
1804 | ACPI_EXCEPTION((AE_INFO, AE_ERROR, |
1805 | "acpi_bus_register_driver() failed")); | |
72206233 | 1806 | acpi_sbs_rmdirs(); |
635227ee | 1807 | return -ENODEV; |
3f86b832 RT |
1808 | } |
1809 | ||
635227ee | 1810 | return 0; |
3f86b832 RT |
1811 | } |
1812 | ||
1813 | static void __exit acpi_sbs_exit(void) | |
1814 | { | |
3f86b832 RT |
1815 | acpi_bus_unregister_driver(&acpi_sbs_driver); |
1816 | ||
72206233 | 1817 | acpi_sbs_rmdirs(); |
3f86b832 | 1818 | |
635227ee | 1819 | return; |
3f86b832 RT |
1820 | } |
1821 | ||
1822 | module_init(acpi_sbs_init); | |
1823 | module_exit(acpi_sbs_exit); |