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Commit | Line | Data |
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3f86b832 | 1 | /* |
db1c291a | 2 | * sbs.c - ACPI Smart Battery System Driver ($Revision: 2.0 $) |
3f86b832 | 3 | * |
db1c291a AS |
4 | * Copyright (c) 2007 Alexey Starikovskiy <astarikovskiy@suse.de> |
5 | * Copyright (c) 2005-2007 Vladimir Lebedev <vladimir.p.lebedev@intel.com> | |
3f86b832 RT |
6 | * Copyright (c) 2005 Rich Townsend <rhdt@bartol.udel.edu> |
7 | * | |
8 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or (at | |
13 | * your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, but | |
16 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | * General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License along | |
21 | * with this program; if not, write to the Free Software Foundation, Inc., | |
22 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. | |
23 | * | |
24 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
25 | */ | |
26 | ||
27 | #include <linux/init.h> | |
5a0e3ad6 | 28 | #include <linux/slab.h> |
3f86b832 RT |
29 | #include <linux/module.h> |
30 | #include <linux/moduleparam.h> | |
31 | #include <linux/kernel.h> | |
94f6c086 | 32 | |
fdcedbba | 33 | #ifdef CONFIG_ACPI_PROCFS_POWER |
3f86b832 RT |
34 | #include <linux/proc_fs.h> |
35 | #include <linux/seq_file.h> | |
36 | #include <asm/uaccess.h> | |
66e4b72b | 37 | #endif |
94f6c086 | 38 | |
3f86b832 | 39 | #include <linux/acpi.h> |
6d15702c | 40 | #include <linux/timer.h> |
72206233 | 41 | #include <linux/jiffies.h> |
3f86b832 | 42 | #include <linux/delay.h> |
94f6c086 AS |
43 | #include <linux/power_supply.h> |
44 | ||
91087dfa AS |
45 | #include "sbshc.h" |
46 | ||
a192a958 LB |
47 | #define PREFIX "ACPI: " |
48 | ||
3f86b832 RT |
49 | #define ACPI_SBS_CLASS "sbs" |
50 | #define ACPI_AC_CLASS "ac_adapter" | |
51 | #define ACPI_BATTERY_CLASS "battery" | |
3f86b832 RT |
52 | #define ACPI_SBS_DEVICE_NAME "Smart Battery System" |
53 | #define ACPI_SBS_FILE_INFO "info" | |
54 | #define ACPI_SBS_FILE_STATE "state" | |
55 | #define ACPI_SBS_FILE_ALARM "alarm" | |
56 | #define ACPI_BATTERY_DIR_NAME "BAT%i" | |
57 | #define ACPI_AC_DIR_NAME "AC0" | |
3f86b832 | 58 | |
db1c291a AS |
59 | #define ACPI_SBS_NOTIFY_STATUS 0x80 |
60 | #define ACPI_SBS_NOTIFY_INFO 0x81 | |
3f86b832 | 61 | |
db1c291a | 62 | MODULE_AUTHOR("Alexey Starikovskiy <astarikovskiy@suse.de>"); |
3f86b832 RT |
63 | MODULE_DESCRIPTION("Smart Battery System ACPI interface driver"); |
64 | MODULE_LICENSE("GPL"); | |
65 | ||
db1c291a AS |
66 | static unsigned int cache_time = 1000; |
67 | module_param(cache_time, uint, 0644); | |
68 | MODULE_PARM_DESC(cache_time, "cache time in milliseconds"); | |
6d15702c VL |
69 | |
70 | extern struct proc_dir_entry *acpi_lock_ac_dir(void); | |
71 | extern struct proc_dir_entry *acpi_lock_battery_dir(void); | |
72 | extern void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir); | |
73 | extern void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir); | |
74 | ||
db1c291a | 75 | #define MAX_SBS_BAT 4 |
6d15702c VL |
76 | #define ACPI_SBS_BLOCK_MAX 32 |
77 | ||
1ba90e3a | 78 | static const struct acpi_device_id sbs_device_ids[] = { |
91087dfa | 79 | {"ACPI0002", 0}, |
1ba90e3a TR |
80 | {"", 0}, |
81 | }; | |
82 | MODULE_DEVICE_TABLE(acpi, sbs_device_ids); | |
83 | ||
3f86b832 | 84 | struct acpi_battery { |
94f6c086 | 85 | struct power_supply bat; |
3f86b832 | 86 | struct acpi_sbs *sbs; |
fdcedbba | 87 | #ifdef CONFIG_ACPI_PROCFS_POWER |
89862e3b | 88 | struct proc_dir_entry *proc_entry; |
66e4b72b | 89 | #endif |
db1c291a AS |
90 | unsigned long update_time; |
91 | char name[8]; | |
89862e3b AS |
92 | char manufacturer_name[ACPI_SBS_BLOCK_MAX]; |
93 | char device_name[ACPI_SBS_BLOCK_MAX]; | |
94 | char device_chemistry[ACPI_SBS_BLOCK_MAX]; | |
94f6c086 | 95 | u16 alarm_capacity; |
89862e3b AS |
96 | u16 full_charge_capacity; |
97 | u16 design_capacity; | |
98 | u16 design_voltage; | |
99 | u16 serial_number; | |
db1c291a AS |
100 | u16 cycle_count; |
101 | u16 temp_now; | |
89862e3b | 102 | u16 voltage_now; |
7faa144a AS |
103 | s16 rate_now; |
104 | s16 rate_avg; | |
89862e3b | 105 | u16 capacity_now; |
db1c291a | 106 | u16 state_of_charge; |
89862e3b | 107 | u16 state; |
89862e3b | 108 | u16 mode; |
db1c291a | 109 | u16 spec; |
89862e3b | 110 | u8 id; |
89862e3b | 111 | u8 present:1; |
037cbc63 | 112 | u8 have_sysfs_alarm:1; |
3f86b832 RT |
113 | }; |
114 | ||
94f6c086 AS |
115 | #define to_acpi_battery(x) container_of(x, struct acpi_battery, bat); |
116 | ||
3f86b832 | 117 | struct acpi_sbs { |
94f6c086 | 118 | struct power_supply charger; |
3f86b832 | 119 | struct acpi_device *device; |
91087dfa | 120 | struct acpi_smb_hc *hc; |
db1c291a | 121 | struct mutex lock; |
fdcedbba | 122 | #ifdef CONFIG_ACPI_PROCFS_POWER |
db1c291a | 123 | struct proc_dir_entry *charger_entry; |
66e4b72b | 124 | #endif |
3f86b832 | 125 | struct acpi_battery battery[MAX_SBS_BAT]; |
db1c291a | 126 | u8 batteries_supported:4; |
89862e3b AS |
127 | u8 manager_present:1; |
128 | u8 charger_present:1; | |
3f86b832 RT |
129 | }; |
130 | ||
94f6c086 AS |
131 | #define to_acpi_sbs(x) container_of(x, struct acpi_sbs, charger) |
132 | ||
1dd5c715 LT |
133 | static int acpi_sbs_remove(struct acpi_device *device, int type); |
134 | static int acpi_battery_get_state(struct acpi_battery *battery); | |
135 | ||
db1c291a | 136 | static inline int battery_scale(int log) |
72206233 | 137 | { |
db1c291a AS |
138 | int scale = 1; |
139 | while (log--) | |
140 | scale *= 10; | |
141 | return scale; | |
72206233 VL |
142 | } |
143 | ||
db1c291a | 144 | static inline int acpi_battery_vscale(struct acpi_battery *battery) |
72206233 | 145 | { |
db1c291a | 146 | return battery_scale((battery->spec & 0x0f00) >> 8); |
72206233 VL |
147 | } |
148 | ||
db1c291a | 149 | static inline int acpi_battery_ipscale(struct acpi_battery *battery) |
72206233 | 150 | { |
db1c291a | 151 | return battery_scale((battery->spec & 0xf000) >> 12); |
72206233 VL |
152 | } |
153 | ||
db1c291a | 154 | static inline int acpi_battery_mode(struct acpi_battery *battery) |
72206233 | 155 | { |
db1c291a | 156 | return (battery->mode & 0x8000); |
72206233 | 157 | } |
3f86b832 | 158 | |
db1c291a | 159 | static inline int acpi_battery_scale(struct acpi_battery *battery) |
3f86b832 | 160 | { |
db1c291a AS |
161 | return (acpi_battery_mode(battery) ? 10 : 1) * |
162 | acpi_battery_ipscale(battery); | |
3f86b832 RT |
163 | } |
164 | ||
94f6c086 AS |
165 | static int sbs_get_ac_property(struct power_supply *psy, |
166 | enum power_supply_property psp, | |
167 | union power_supply_propval *val) | |
168 | { | |
169 | struct acpi_sbs *sbs = to_acpi_sbs(psy); | |
170 | switch (psp) { | |
171 | case POWER_SUPPLY_PROP_ONLINE: | |
172 | val->intval = sbs->charger_present; | |
173 | break; | |
174 | default: | |
175 | return -EINVAL; | |
176 | } | |
177 | return 0; | |
178 | } | |
179 | ||
180 | static int acpi_battery_technology(struct acpi_battery *battery) | |
181 | { | |
182 | if (!strcasecmp("NiCd", battery->device_chemistry)) | |
183 | return POWER_SUPPLY_TECHNOLOGY_NiCd; | |
184 | if (!strcasecmp("NiMH", battery->device_chemistry)) | |
185 | return POWER_SUPPLY_TECHNOLOGY_NiMH; | |
186 | if (!strcasecmp("LION", battery->device_chemistry)) | |
187 | return POWER_SUPPLY_TECHNOLOGY_LION; | |
188 | if (!strcasecmp("LiP", battery->device_chemistry)) | |
189 | return POWER_SUPPLY_TECHNOLOGY_LIPO; | |
190 | return POWER_SUPPLY_TECHNOLOGY_UNKNOWN; | |
191 | } | |
192 | ||
193 | static int acpi_sbs_battery_get_property(struct power_supply *psy, | |
194 | enum power_supply_property psp, | |
195 | union power_supply_propval *val) | |
196 | { | |
197 | struct acpi_battery *battery = to_acpi_battery(psy); | |
198 | ||
199 | if ((!battery->present) && psp != POWER_SUPPLY_PROP_PRESENT) | |
200 | return -ENODEV; | |
1dd5c715 LT |
201 | |
202 | acpi_battery_get_state(battery); | |
94f6c086 AS |
203 | switch (psp) { |
204 | case POWER_SUPPLY_PROP_STATUS: | |
7faa144a | 205 | if (battery->rate_now < 0) |
94f6c086 | 206 | val->intval = POWER_SUPPLY_STATUS_DISCHARGING; |
7faa144a | 207 | else if (battery->rate_now > 0) |
94f6c086 AS |
208 | val->intval = POWER_SUPPLY_STATUS_CHARGING; |
209 | else | |
210 | val->intval = POWER_SUPPLY_STATUS_FULL; | |
211 | break; | |
212 | case POWER_SUPPLY_PROP_PRESENT: | |
213 | val->intval = battery->present; | |
214 | break; | |
215 | case POWER_SUPPLY_PROP_TECHNOLOGY: | |
216 | val->intval = acpi_battery_technology(battery); | |
217 | break; | |
16698857 AS |
218 | case POWER_SUPPLY_PROP_CYCLE_COUNT: |
219 | val->intval = battery->cycle_count; | |
220 | break; | |
94f6c086 AS |
221 | case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: |
222 | val->intval = battery->design_voltage * | |
223 | acpi_battery_vscale(battery) * 1000; | |
224 | break; | |
225 | case POWER_SUPPLY_PROP_VOLTAGE_NOW: | |
226 | val->intval = battery->voltage_now * | |
227 | acpi_battery_vscale(battery) * 1000; | |
228 | break; | |
229 | case POWER_SUPPLY_PROP_CURRENT_NOW: | |
7faa144a AS |
230 | case POWER_SUPPLY_PROP_POWER_NOW: |
231 | val->intval = abs(battery->rate_now) * | |
94f6c086 AS |
232 | acpi_battery_ipscale(battery) * 1000; |
233 | break; | |
234 | case POWER_SUPPLY_PROP_CURRENT_AVG: | |
7faa144a AS |
235 | case POWER_SUPPLY_PROP_POWER_AVG: |
236 | val->intval = abs(battery->rate_avg) * | |
94f6c086 AS |
237 | acpi_battery_ipscale(battery) * 1000; |
238 | break; | |
239 | case POWER_SUPPLY_PROP_CAPACITY: | |
240 | val->intval = battery->state_of_charge; | |
241 | break; | |
242 | case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: | |
243 | case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN: | |
244 | val->intval = battery->design_capacity * | |
245 | acpi_battery_scale(battery) * 1000; | |
246 | break; | |
247 | case POWER_SUPPLY_PROP_CHARGE_FULL: | |
248 | case POWER_SUPPLY_PROP_ENERGY_FULL: | |
249 | val->intval = battery->full_charge_capacity * | |
250 | acpi_battery_scale(battery) * 1000; | |
251 | break; | |
252 | case POWER_SUPPLY_PROP_CHARGE_NOW: | |
253 | case POWER_SUPPLY_PROP_ENERGY_NOW: | |
254 | val->intval = battery->capacity_now * | |
255 | acpi_battery_scale(battery) * 1000; | |
256 | break; | |
257 | case POWER_SUPPLY_PROP_TEMP: | |
258 | val->intval = battery->temp_now - 2730; // dK -> dC | |
259 | break; | |
260 | case POWER_SUPPLY_PROP_MODEL_NAME: | |
261 | val->strval = battery->device_name; | |
262 | break; | |
263 | case POWER_SUPPLY_PROP_MANUFACTURER: | |
264 | val->strval = battery->manufacturer_name; | |
265 | break; | |
266 | default: | |
267 | return -EINVAL; | |
268 | } | |
269 | return 0; | |
270 | } | |
271 | ||
272 | static enum power_supply_property sbs_ac_props[] = { | |
273 | POWER_SUPPLY_PROP_ONLINE, | |
274 | }; | |
275 | ||
276 | static enum power_supply_property sbs_charge_battery_props[] = { | |
277 | POWER_SUPPLY_PROP_STATUS, | |
278 | POWER_SUPPLY_PROP_PRESENT, | |
279 | POWER_SUPPLY_PROP_TECHNOLOGY, | |
16698857 | 280 | POWER_SUPPLY_PROP_CYCLE_COUNT, |
94f6c086 AS |
281 | POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, |
282 | POWER_SUPPLY_PROP_VOLTAGE_NOW, | |
283 | POWER_SUPPLY_PROP_CURRENT_NOW, | |
284 | POWER_SUPPLY_PROP_CURRENT_AVG, | |
285 | POWER_SUPPLY_PROP_CAPACITY, | |
286 | POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, | |
287 | POWER_SUPPLY_PROP_CHARGE_FULL, | |
288 | POWER_SUPPLY_PROP_CHARGE_NOW, | |
289 | POWER_SUPPLY_PROP_TEMP, | |
290 | POWER_SUPPLY_PROP_MODEL_NAME, | |
291 | POWER_SUPPLY_PROP_MANUFACTURER, | |
292 | }; | |
293 | ||
294 | static enum power_supply_property sbs_energy_battery_props[] = { | |
295 | POWER_SUPPLY_PROP_STATUS, | |
296 | POWER_SUPPLY_PROP_PRESENT, | |
297 | POWER_SUPPLY_PROP_TECHNOLOGY, | |
298 | POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, | |
299 | POWER_SUPPLY_PROP_VOLTAGE_NOW, | |
300 | POWER_SUPPLY_PROP_CURRENT_NOW, | |
301 | POWER_SUPPLY_PROP_CURRENT_AVG, | |
7faa144a AS |
302 | POWER_SUPPLY_PROP_POWER_NOW, |
303 | POWER_SUPPLY_PROP_POWER_AVG, | |
94f6c086 AS |
304 | POWER_SUPPLY_PROP_CAPACITY, |
305 | POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN, | |
306 | POWER_SUPPLY_PROP_ENERGY_FULL, | |
307 | POWER_SUPPLY_PROP_ENERGY_NOW, | |
308 | POWER_SUPPLY_PROP_TEMP, | |
309 | POWER_SUPPLY_PROP_MODEL_NAME, | |
310 | POWER_SUPPLY_PROP_MANUFACTURER, | |
311 | }; | |
7faa144a | 312 | |
94f6c086 | 313 | |
db1c291a AS |
314 | /* -------------------------------------------------------------------------- |
315 | Smart Battery System Management | |
316 | -------------------------------------------------------------------------- */ | |
3f86b832 | 317 | |
db1c291a AS |
318 | struct acpi_battery_reader { |
319 | u8 command; /* command for battery */ | |
320 | u8 mode; /* word or block? */ | |
321 | size_t offset; /* offset inside struct acpi_sbs_battery */ | |
322 | }; | |
3f86b832 | 323 | |
db1c291a AS |
324 | static struct acpi_battery_reader info_readers[] = { |
325 | {0x01, SMBUS_READ_WORD, offsetof(struct acpi_battery, alarm_capacity)}, | |
326 | {0x03, SMBUS_READ_WORD, offsetof(struct acpi_battery, mode)}, | |
327 | {0x10, SMBUS_READ_WORD, offsetof(struct acpi_battery, full_charge_capacity)}, | |
328 | {0x17, SMBUS_READ_WORD, offsetof(struct acpi_battery, cycle_count)}, | |
329 | {0x18, SMBUS_READ_WORD, offsetof(struct acpi_battery, design_capacity)}, | |
330 | {0x19, SMBUS_READ_WORD, offsetof(struct acpi_battery, design_voltage)}, | |
331 | {0x1a, SMBUS_READ_WORD, offsetof(struct acpi_battery, spec)}, | |
332 | {0x1c, SMBUS_READ_WORD, offsetof(struct acpi_battery, serial_number)}, | |
333 | {0x20, SMBUS_READ_BLOCK, offsetof(struct acpi_battery, manufacturer_name)}, | |
334 | {0x21, SMBUS_READ_BLOCK, offsetof(struct acpi_battery, device_name)}, | |
335 | {0x22, SMBUS_READ_BLOCK, offsetof(struct acpi_battery, device_chemistry)}, | |
336 | }; | |
3f86b832 | 337 | |
db1c291a AS |
338 | static struct acpi_battery_reader state_readers[] = { |
339 | {0x08, SMBUS_READ_WORD, offsetof(struct acpi_battery, temp_now)}, | |
340 | {0x09, SMBUS_READ_WORD, offsetof(struct acpi_battery, voltage_now)}, | |
7faa144a AS |
341 | {0x0a, SMBUS_READ_WORD, offsetof(struct acpi_battery, rate_now)}, |
342 | {0x0b, SMBUS_READ_WORD, offsetof(struct acpi_battery, rate_avg)}, | |
db1c291a AS |
343 | {0x0f, SMBUS_READ_WORD, offsetof(struct acpi_battery, capacity_now)}, |
344 | {0x0e, SMBUS_READ_WORD, offsetof(struct acpi_battery, state_of_charge)}, | |
345 | {0x16, SMBUS_READ_WORD, offsetof(struct acpi_battery, state)}, | |
346 | }; | |
3f86b832 | 347 | |
db1c291a | 348 | static int acpi_manager_get_info(struct acpi_sbs *sbs) |
3f86b832 | 349 | { |
3f86b832 | 350 | int result = 0; |
db1c291a | 351 | u16 battery_system_info; |
3f86b832 | 352 | |
db1c291a | 353 | result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBS_MANAGER, |
94f6c086 | 354 | 0x04, (u8 *)&battery_system_info); |
db1c291a AS |
355 | if (!result) |
356 | sbs->batteries_supported = battery_system_info & 0x000f; | |
635227ee | 357 | return result; |
3f86b832 RT |
358 | } |
359 | ||
360 | static int acpi_battery_get_info(struct acpi_battery *battery) | |
361 | { | |
db1c291a | 362 | int i, result = 0; |
3f86b832 | 363 | |
db1c291a | 364 | for (i = 0; i < ARRAY_SIZE(info_readers); ++i) { |
94f6c086 AS |
365 | result = acpi_smbus_read(battery->sbs->hc, |
366 | info_readers[i].mode, | |
367 | ACPI_SBS_BATTERY, | |
368 | info_readers[i].command, | |
369 | (u8 *) battery + | |
370 | info_readers[i].offset); | |
db1c291a AS |
371 | if (result) |
372 | break; | |
3f86b832 | 373 | } |
635227ee | 374 | return result; |
3f86b832 RT |
375 | } |
376 | ||
3f86b832 RT |
377 | static int acpi_battery_get_state(struct acpi_battery *battery) |
378 | { | |
db1c291a | 379 | int i, result = 0; |
3f86b832 | 380 | |
94f6c086 AS |
381 | if (battery->update_time && |
382 | time_before(jiffies, battery->update_time + | |
db1c291a AS |
383 | msecs_to_jiffies(cache_time))) |
384 | return 0; | |
385 | for (i = 0; i < ARRAY_SIZE(state_readers); ++i) { | |
386 | result = acpi_smbus_read(battery->sbs->hc, | |
387 | state_readers[i].mode, | |
388 | ACPI_SBS_BATTERY, | |
389 | state_readers[i].command, | |
390 | (u8 *)battery + | |
391 | state_readers[i].offset); | |
392 | if (result) | |
3f86b832 | 393 | goto end; |
3f86b832 | 394 | } |
3f86b832 | 395 | end: |
db1c291a | 396 | battery->update_time = jiffies; |
635227ee | 397 | return result; |
3f86b832 RT |
398 | } |
399 | ||
db1c291a | 400 | static int acpi_battery_get_alarm(struct acpi_battery *battery) |
3f86b832 | 401 | { |
db1c291a AS |
402 | return acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, |
403 | ACPI_SBS_BATTERY, 0x01, | |
94f6c086 | 404 | (u8 *)&battery->alarm_capacity); |
3f86b832 RT |
405 | } |
406 | ||
db1c291a | 407 | static int acpi_battery_set_alarm(struct acpi_battery *battery) |
3f86b832 | 408 | { |
db1c291a | 409 | struct acpi_sbs *sbs = battery->sbs; |
94f6c086 AS |
410 | u16 value, sel = 1 << (battery->id + 12); |
411 | ||
412 | int ret; | |
413 | ||
3f86b832 | 414 | |
db1c291a | 415 | if (sbs->manager_present) { |
94f6c086 | 416 | ret = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBS_MANAGER, |
db1c291a | 417 | 0x01, (u8 *)&value); |
94f6c086 AS |
418 | if (ret) |
419 | goto end; | |
420 | if ((value & 0xf000) != sel) { | |
421 | value &= 0x0fff; | |
422 | value |= sel; | |
423 | ret = acpi_smbus_write(sbs->hc, SMBUS_WRITE_WORD, | |
424 | ACPI_SBS_MANAGER, | |
425 | 0x01, (u8 *)&value, 2); | |
426 | if (ret) | |
427 | goto end; | |
428 | } | |
3f86b832 | 429 | } |
94f6c086 AS |
430 | ret = acpi_smbus_write(sbs->hc, SMBUS_WRITE_WORD, ACPI_SBS_BATTERY, |
431 | 0x01, (u8 *)&battery->alarm_capacity, 2); | |
432 | end: | |
433 | return ret; | |
3f86b832 RT |
434 | } |
435 | ||
436 | static int acpi_ac_get_present(struct acpi_sbs *sbs) | |
437 | { | |
db1c291a AS |
438 | int result; |
439 | u16 status; | |
3f86b832 | 440 | |
db1c291a AS |
441 | result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBS_CHARGER, |
442 | 0x13, (u8 *) & status); | |
443 | if (!result) | |
444 | sbs->charger_present = (status >> 15) & 0x1; | |
635227ee | 445 | return result; |
3f86b832 RT |
446 | } |
447 | ||
8bd95532 AS |
448 | static ssize_t acpi_battery_alarm_show(struct device *dev, |
449 | struct device_attribute *attr, | |
450 | char *buf) | |
451 | { | |
452 | struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev)); | |
453 | acpi_battery_get_alarm(battery); | |
454 | return sprintf(buf, "%d\n", battery->alarm_capacity * | |
455 | acpi_battery_scale(battery) * 1000); | |
456 | } | |
457 | ||
458 | static ssize_t acpi_battery_alarm_store(struct device *dev, | |
459 | struct device_attribute *attr, | |
460 | const char *buf, size_t count) | |
461 | { | |
462 | unsigned long x; | |
463 | struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev)); | |
464 | if (sscanf(buf, "%ld\n", &x) == 1) | |
465 | battery->alarm_capacity = x / | |
466 | (1000 * acpi_battery_scale(battery)); | |
467 | if (battery->present) | |
468 | acpi_battery_set_alarm(battery); | |
469 | return count; | |
470 | } | |
471 | ||
472 | static struct device_attribute alarm_attr = { | |
01e8ef11 | 473 | .attr = {.name = "alarm", .mode = 0644}, |
8bd95532 AS |
474 | .show = acpi_battery_alarm_show, |
475 | .store = acpi_battery_alarm_store, | |
476 | }; | |
477 | ||
3f86b832 RT |
478 | /* -------------------------------------------------------------------------- |
479 | FS Interface (/proc/acpi) | |
480 | -------------------------------------------------------------------------- */ | |
481 | ||
fdcedbba | 482 | #ifdef CONFIG_ACPI_PROCFS_POWER |
3f86b832 | 483 | /* Generic Routines */ |
3f86b832 | 484 | static int |
db1c291a | 485 | acpi_sbs_add_fs(struct proc_dir_entry **dir, |
94f6c086 AS |
486 | struct proc_dir_entry *parent_dir, |
487 | char *dir_name, | |
070d8eb1 JE |
488 | const struct file_operations *info_fops, |
489 | const struct file_operations *state_fops, | |
490 | const struct file_operations *alarm_fops, void *data) | |
3f86b832 | 491 | { |
6d855fcd ZR |
492 | printk(KERN_WARNING PREFIX "Deprecated procfs I/F for SBS is loaded," |
493 | " please retry with CONFIG_ACPI_PROCFS_POWER cleared\n"); | |
3f86b832 RT |
494 | if (!*dir) { |
495 | *dir = proc_mkdir(dir_name, parent_dir); | |
496 | if (!*dir) { | |
635227ee | 497 | return -ENODEV; |
3f86b832 | 498 | } |
3f86b832 RT |
499 | } |
500 | ||
501 | /* 'info' [R] */ | |
cf7acfab DL |
502 | if (info_fops) |
503 | proc_create_data(ACPI_SBS_FILE_INFO, S_IRUGO, *dir, | |
504 | info_fops, data); | |
3f86b832 RT |
505 | |
506 | /* 'state' [R] */ | |
cf7acfab DL |
507 | if (state_fops) |
508 | proc_create_data(ACPI_SBS_FILE_STATE, S_IRUGO, *dir, | |
509 | state_fops, data); | |
3f86b832 RT |
510 | |
511 | /* 'alarm' [R/W] */ | |
cf7acfab DL |
512 | if (alarm_fops) |
513 | proc_create_data(ACPI_SBS_FILE_ALARM, S_IRUGO, *dir, | |
514 | alarm_fops, data); | |
635227ee | 515 | return 0; |
3f86b832 RT |
516 | } |
517 | ||
518 | static void | |
db1c291a | 519 | acpi_sbs_remove_fs(struct proc_dir_entry **dir, |
3f86b832 RT |
520 | struct proc_dir_entry *parent_dir) |
521 | { | |
3f86b832 RT |
522 | if (*dir) { |
523 | remove_proc_entry(ACPI_SBS_FILE_INFO, *dir); | |
524 | remove_proc_entry(ACPI_SBS_FILE_STATE, *dir); | |
525 | remove_proc_entry(ACPI_SBS_FILE_ALARM, *dir); | |
526 | remove_proc_entry((*dir)->name, parent_dir); | |
527 | *dir = NULL; | |
528 | } | |
3f86b832 RT |
529 | } |
530 | ||
531 | /* Smart Battery Interface */ | |
3f86b832 RT |
532 | static struct proc_dir_entry *acpi_battery_dir = NULL; |
533 | ||
db1c291a AS |
534 | static inline char *acpi_battery_units(struct acpi_battery *battery) |
535 | { | |
5a21e4fe | 536 | return acpi_battery_mode(battery) ? " mW" : " mA"; |
db1c291a AS |
537 | } |
538 | ||
539 | ||
3f86b832 RT |
540 | static int acpi_battery_read_info(struct seq_file *seq, void *offset) |
541 | { | |
50dd0969 | 542 | struct acpi_battery *battery = seq->private; |
72206233 | 543 | struct acpi_sbs *sbs = battery->sbs; |
3f86b832 RT |
544 | int result = 0; |
545 | ||
db1c291a | 546 | mutex_lock(&sbs->lock); |
3f86b832 | 547 | |
db1c291a AS |
548 | seq_printf(seq, "present: %s\n", |
549 | (battery->present) ? "yes" : "no"); | |
550 | if (!battery->present) | |
72206233 | 551 | goto end; |
3f86b832 | 552 | |
5a21e4fe | 553 | seq_printf(seq, "design capacity: %i%sh\n", |
db1c291a AS |
554 | battery->design_capacity * acpi_battery_scale(battery), |
555 | acpi_battery_units(battery)); | |
5a21e4fe | 556 | seq_printf(seq, "last full capacity: %i%sh\n", |
db1c291a AS |
557 | battery->full_charge_capacity * acpi_battery_scale(battery), |
558 | acpi_battery_units(battery)); | |
3f86b832 | 559 | seq_printf(seq, "battery technology: rechargeable\n"); |
3f86b832 | 560 | seq_printf(seq, "design voltage: %i mV\n", |
db1c291a | 561 | battery->design_voltage * acpi_battery_vscale(battery)); |
3f86b832 RT |
562 | seq_printf(seq, "design capacity warning: unknown\n"); |
563 | seq_printf(seq, "design capacity low: unknown\n"); | |
16698857 | 564 | seq_printf(seq, "cycle count: %i\n", battery->cycle_count); |
3f86b832 RT |
565 | seq_printf(seq, "capacity granularity 1: unknown\n"); |
566 | seq_printf(seq, "capacity granularity 2: unknown\n"); | |
db1c291a | 567 | seq_printf(seq, "model number: %s\n", battery->device_name); |
3f86b832 | 568 | seq_printf(seq, "serial number: %i\n", |
89862e3b | 569 | battery->serial_number); |
3f86b832 | 570 | seq_printf(seq, "battery type: %s\n", |
89862e3b | 571 | battery->device_chemistry); |
3f86b832 | 572 | seq_printf(seq, "OEM info: %s\n", |
89862e3b | 573 | battery->manufacturer_name); |
3f86b832 | 574 | end: |
db1c291a | 575 | mutex_unlock(&sbs->lock); |
635227ee | 576 | return result; |
3f86b832 RT |
577 | } |
578 | ||
579 | static int acpi_battery_info_open_fs(struct inode *inode, struct file *file) | |
580 | { | |
581 | return single_open(file, acpi_battery_read_info, PDE(inode)->data); | |
582 | } | |
583 | ||
584 | static int acpi_battery_read_state(struct seq_file *seq, void *offset) | |
585 | { | |
72206233 VL |
586 | struct acpi_battery *battery = seq->private; |
587 | struct acpi_sbs *sbs = battery->sbs; | |
5a21e4fe | 588 | int rate; |
3f86b832 | 589 | |
db1c291a AS |
590 | mutex_lock(&sbs->lock); |
591 | seq_printf(seq, "present: %s\n", | |
592 | (battery->present) ? "yes" : "no"); | |
593 | if (!battery->present) | |
3f86b832 | 594 | goto end; |
3f86b832 | 595 | |
db1c291a AS |
596 | acpi_battery_get_state(battery); |
597 | seq_printf(seq, "capacity state: %s\n", | |
598 | (battery->state & 0x0010) ? "critical" : "ok"); | |
599 | seq_printf(seq, "charging state: %s\n", | |
7faa144a AS |
600 | (battery->rate_now < 0) ? "discharging" : |
601 | ((battery->rate_now > 0) ? "charging" : "charged")); | |
602 | rate = abs(battery->rate_now) * acpi_battery_ipscale(battery); | |
5a21e4fe AS |
603 | rate *= (acpi_battery_mode(battery))?(battery->voltage_now * |
604 | acpi_battery_vscale(battery)/1000):1; | |
605 | seq_printf(seq, "present rate: %d%s\n", rate, | |
606 | acpi_battery_units(battery)); | |
607 | seq_printf(seq, "remaining capacity: %i%sh\n", | |
db1c291a AS |
608 | battery->capacity_now * acpi_battery_scale(battery), |
609 | acpi_battery_units(battery)); | |
3f86b832 | 610 | seq_printf(seq, "present voltage: %i mV\n", |
db1c291a | 611 | battery->voltage_now * acpi_battery_vscale(battery)); |
3f86b832 RT |
612 | |
613 | end: | |
db1c291a | 614 | mutex_unlock(&sbs->lock); |
5a21e4fe | 615 | return 0; |
3f86b832 RT |
616 | } |
617 | ||
618 | static int acpi_battery_state_open_fs(struct inode *inode, struct file *file) | |
619 | { | |
620 | return single_open(file, acpi_battery_read_state, PDE(inode)->data); | |
621 | } | |
622 | ||
623 | static int acpi_battery_read_alarm(struct seq_file *seq, void *offset) | |
624 | { | |
50dd0969 | 625 | struct acpi_battery *battery = seq->private; |
72206233 | 626 | struct acpi_sbs *sbs = battery->sbs; |
3f86b832 | 627 | int result = 0; |
3f86b832 | 628 | |
db1c291a | 629 | mutex_lock(&sbs->lock); |
3f86b832 | 630 | |
89862e3b | 631 | if (!battery->present) { |
3f86b832 RT |
632 | seq_printf(seq, "present: no\n"); |
633 | goto end; | |
634 | } | |
635 | ||
db1c291a | 636 | acpi_battery_get_alarm(battery); |
3f86b832 | 637 | seq_printf(seq, "alarm: "); |
db1c291a | 638 | if (battery->alarm_capacity) |
5a21e4fe | 639 | seq_printf(seq, "%i%sh\n", |
db1c291a AS |
640 | battery->alarm_capacity * |
641 | acpi_battery_scale(battery), | |
642 | acpi_battery_units(battery)); | |
643 | else | |
3f86b832 | 644 | seq_printf(seq, "disabled\n"); |
3f86b832 | 645 | end: |
db1c291a | 646 | mutex_unlock(&sbs->lock); |
635227ee | 647 | return result; |
3f86b832 RT |
648 | } |
649 | ||
650 | static ssize_t | |
651 | acpi_battery_write_alarm(struct file *file, const char __user * buffer, | |
652 | size_t count, loff_t * ppos) | |
653 | { | |
50dd0969 JE |
654 | struct seq_file *seq = file->private_data; |
655 | struct acpi_battery *battery = seq->private; | |
72206233 | 656 | struct acpi_sbs *sbs = battery->sbs; |
3f86b832 | 657 | char alarm_string[12] = { '\0' }; |
db1c291a AS |
658 | int result = 0; |
659 | mutex_lock(&sbs->lock); | |
89862e3b | 660 | if (!battery->present) { |
3f86b832 RT |
661 | result = -ENODEV; |
662 | goto end; | |
663 | } | |
3f86b832 RT |
664 | if (count > sizeof(alarm_string) - 1) { |
665 | result = -EINVAL; | |
666 | goto end; | |
667 | } | |
3f86b832 RT |
668 | if (copy_from_user(alarm_string, buffer, count)) { |
669 | result = -EFAULT; | |
670 | goto end; | |
671 | } | |
3f86b832 | 672 | alarm_string[count] = 0; |
94f6c086 AS |
673 | battery->alarm_capacity = simple_strtoul(alarm_string, NULL, 0) / |
674 | acpi_battery_scale(battery); | |
db1c291a | 675 | acpi_battery_set_alarm(battery); |
3f86b832 | 676 | end: |
db1c291a AS |
677 | mutex_unlock(&sbs->lock); |
678 | if (result) | |
635227ee | 679 | return result; |
db1c291a | 680 | return count; |
3f86b832 RT |
681 | } |
682 | ||
683 | static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file) | |
684 | { | |
685 | return single_open(file, acpi_battery_read_alarm, PDE(inode)->data); | |
686 | } | |
687 | ||
070d8eb1 | 688 | static const struct file_operations acpi_battery_info_fops = { |
3f86b832 RT |
689 | .open = acpi_battery_info_open_fs, |
690 | .read = seq_read, | |
691 | .llseek = seq_lseek, | |
692 | .release = single_release, | |
693 | .owner = THIS_MODULE, | |
694 | }; | |
695 | ||
070d8eb1 | 696 | static const struct file_operations acpi_battery_state_fops = { |
3f86b832 RT |
697 | .open = acpi_battery_state_open_fs, |
698 | .read = seq_read, | |
699 | .llseek = seq_lseek, | |
700 | .release = single_release, | |
701 | .owner = THIS_MODULE, | |
702 | }; | |
703 | ||
070d8eb1 | 704 | static const struct file_operations acpi_battery_alarm_fops = { |
3f86b832 RT |
705 | .open = acpi_battery_alarm_open_fs, |
706 | .read = seq_read, | |
707 | .write = acpi_battery_write_alarm, | |
708 | .llseek = seq_lseek, | |
709 | .release = single_release, | |
710 | .owner = THIS_MODULE, | |
711 | }; | |
712 | ||
713 | /* Legacy AC Adapter Interface */ | |
714 | ||
715 | static struct proc_dir_entry *acpi_ac_dir = NULL; | |
716 | ||
717 | static int acpi_ac_read_state(struct seq_file *seq, void *offset) | |
718 | { | |
3f86b832 | 719 | |
db1c291a | 720 | struct acpi_sbs *sbs = seq->private; |
3f86b832 | 721 | |
db1c291a | 722 | mutex_lock(&sbs->lock); |
3f86b832 RT |
723 | |
724 | seq_printf(seq, "state: %s\n", | |
89862e3b | 725 | sbs->charger_present ? "on-line" : "off-line"); |
3f86b832 | 726 | |
db1c291a | 727 | mutex_unlock(&sbs->lock); |
635227ee | 728 | return 0; |
3f86b832 RT |
729 | } |
730 | ||
731 | static int acpi_ac_state_open_fs(struct inode *inode, struct file *file) | |
732 | { | |
733 | return single_open(file, acpi_ac_read_state, PDE(inode)->data); | |
734 | } | |
735 | ||
070d8eb1 | 736 | static const struct file_operations acpi_ac_state_fops = { |
3f86b832 RT |
737 | .open = acpi_ac_state_open_fs, |
738 | .read = seq_read, | |
739 | .llseek = seq_lseek, | |
740 | .release = single_release, | |
741 | .owner = THIS_MODULE, | |
742 | }; | |
743 | ||
66e4b72b AS |
744 | #endif |
745 | ||
3f86b832 RT |
746 | /* -------------------------------------------------------------------------- |
747 | Driver Interface | |
748 | -------------------------------------------------------------------------- */ | |
db1c291a | 749 | static int acpi_battery_read(struct acpi_battery *battery) |
3f86b832 | 750 | { |
db1c291a AS |
751 | int result = 0, saved_present = battery->present; |
752 | u16 state; | |
3f86b832 | 753 | |
db1c291a AS |
754 | if (battery->sbs->manager_present) { |
755 | result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, | |
756 | ACPI_SBS_MANAGER, 0x01, (u8 *)&state); | |
757 | if (!result) | |
758 | battery->present = state & (1 << battery->id); | |
759 | state &= 0x0fff; | |
760 | state |= 1 << (battery->id + 12); | |
761 | acpi_smbus_write(battery->sbs->hc, SMBUS_WRITE_WORD, | |
762 | ACPI_SBS_MANAGER, 0x01, (u8 *)&state, 2); | |
763 | } else if (battery->id == 0) | |
764 | battery->present = 1; | |
765 | if (result || !battery->present) | |
766 | return result; | |
3f86b832 | 767 | |
db1c291a AS |
768 | if (saved_present != battery->present) { |
769 | battery->update_time = 0; | |
770 | result = acpi_battery_get_info(battery); | |
771 | if (result) | |
772 | return result; | |
773 | } | |
774 | result = acpi_battery_get_state(battery); | |
775 | return result; | |
776 | } | |
3f86b832 | 777 | |
94f6c086 | 778 | /* Smart Battery */ |
db1c291a AS |
779 | static int acpi_battery_add(struct acpi_sbs *sbs, int id) |
780 | { | |
db1c291a | 781 | struct acpi_battery *battery = &sbs->battery[id]; |
94f6c086 AS |
782 | int result; |
783 | ||
3f86b832 RT |
784 | battery->id = id; |
785 | battery->sbs = sbs; | |
db1c291a AS |
786 | result = acpi_battery_read(battery); |
787 | if (result) | |
788 | return result; | |
3f86b832 | 789 | |
db1c291a | 790 | sprintf(battery->name, ACPI_BATTERY_DIR_NAME, id); |
fdcedbba | 791 | #ifdef CONFIG_ACPI_PROCFS_POWER |
db1c291a AS |
792 | acpi_sbs_add_fs(&battery->proc_entry, acpi_battery_dir, |
793 | battery->name, &acpi_battery_info_fops, | |
794 | &acpi_battery_state_fops, &acpi_battery_alarm_fops, | |
795 | battery); | |
66e4b72b | 796 | #endif |
94f6c086 AS |
797 | battery->bat.name = battery->name; |
798 | battery->bat.type = POWER_SUPPLY_TYPE_BATTERY; | |
799 | if (!acpi_battery_mode(battery)) { | |
800 | battery->bat.properties = sbs_charge_battery_props; | |
801 | battery->bat.num_properties = | |
802 | ARRAY_SIZE(sbs_charge_battery_props); | |
803 | } else { | |
804 | battery->bat.properties = sbs_energy_battery_props; | |
805 | battery->bat.num_properties = | |
806 | ARRAY_SIZE(sbs_energy_battery_props); | |
807 | } | |
808 | battery->bat.get_property = acpi_sbs_battery_get_property; | |
809 | result = power_supply_register(&sbs->device->dev, &battery->bat); | |
037cbc63 JG |
810 | if (result) |
811 | goto end; | |
812 | result = device_create_file(battery->bat.dev, &alarm_attr); | |
813 | if (result) | |
814 | goto end; | |
815 | battery->have_sysfs_alarm = 1; | |
816 | end: | |
72206233 | 817 | printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n", |
db1c291a | 818 | ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), |
bbafbecb | 819 | battery->name, battery->present ? "present" : "absent"); |
635227ee | 820 | return result; |
3f86b832 RT |
821 | } |
822 | ||
823 | static void acpi_battery_remove(struct acpi_sbs *sbs, int id) | |
824 | { | |
037cbc63 | 825 | struct acpi_battery *battery = &sbs->battery[id]; |
c19bdb61 | 826 | |
037cbc63 JG |
827 | if (battery->bat.dev) { |
828 | if (battery->have_sysfs_alarm) | |
829 | device_remove_file(battery->bat.dev, &alarm_attr); | |
830 | power_supply_unregister(&battery->bat); | |
3f86b832 | 831 | } |
c2e46d2e | 832 | #ifdef CONFIG_ACPI_PROCFS_POWER |
037cbc63 JG |
833 | if (battery->proc_entry) |
834 | acpi_sbs_remove_fs(&battery->proc_entry, acpi_battery_dir); | |
66e4b72b | 835 | #endif |
3f86b832 RT |
836 | } |
837 | ||
db1c291a | 838 | static int acpi_charger_add(struct acpi_sbs *sbs) |
3f86b832 RT |
839 | { |
840 | int result; | |
841 | ||
3f86b832 | 842 | result = acpi_ac_get_present(sbs); |
db1c291a | 843 | if (result) |
3f86b832 | 844 | goto end; |
fdcedbba | 845 | #ifdef CONFIG_ACPI_PROCFS_POWER |
db1c291a AS |
846 | result = acpi_sbs_add_fs(&sbs->charger_entry, acpi_ac_dir, |
847 | ACPI_AC_DIR_NAME, NULL, | |
848 | &acpi_ac_state_fops, NULL, sbs); | |
849 | if (result) | |
3f86b832 | 850 | goto end; |
66e4b72b | 851 | #endif |
94f6c086 AS |
852 | sbs->charger.name = "sbs-charger"; |
853 | sbs->charger.type = POWER_SUPPLY_TYPE_MAINS; | |
854 | sbs->charger.properties = sbs_ac_props; | |
855 | sbs->charger.num_properties = ARRAY_SIZE(sbs_ac_props); | |
856 | sbs->charger.get_property = sbs_get_ac_property; | |
857 | power_supply_register(&sbs->device->dev, &sbs->charger); | |
72206233 VL |
858 | printk(KERN_INFO PREFIX "%s [%s]: AC Adapter [%s] (%s)\n", |
859 | ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), | |
89862e3b | 860 | ACPI_AC_DIR_NAME, sbs->charger_present ? "on-line" : "off-line"); |
3f86b832 | 861 | end: |
635227ee | 862 | return result; |
3f86b832 RT |
863 | } |
864 | ||
db1c291a | 865 | static void acpi_charger_remove(struct acpi_sbs *sbs) |
3f86b832 | 866 | { |
94f6c086 AS |
867 | if (sbs->charger.dev) |
868 | power_supply_unregister(&sbs->charger); | |
fdcedbba | 869 | #ifdef CONFIG_ACPI_PROCFS_POWER |
db1c291a AS |
870 | if (sbs->charger_entry) |
871 | acpi_sbs_remove_fs(&sbs->charger_entry, acpi_ac_dir); | |
66e4b72b | 872 | #endif |
3f86b832 RT |
873 | } |
874 | ||
e5685b9d | 875 | static void acpi_sbs_callback(void *context) |
3f86b832 | 876 | { |
db1c291a AS |
877 | int id; |
878 | struct acpi_sbs *sbs = context; | |
879 | struct acpi_battery *bat; | |
880 | u8 saved_charger_state = sbs->charger_present; | |
881 | u8 saved_battery_state; | |
882 | acpi_ac_get_present(sbs); | |
883 | if (sbs->charger_present != saved_charger_state) { | |
94f6c086 | 884 | #ifdef CONFIG_ACPI_PROC_EVENT |
db1c291a AS |
885 | acpi_bus_generate_proc_event4(ACPI_AC_CLASS, ACPI_AC_DIR_NAME, |
886 | ACPI_SBS_NOTIFY_STATUS, | |
887 | sbs->charger_present); | |
94f6c086 AS |
888 | #endif |
889 | kobject_uevent(&sbs->charger.dev->kobj, KOBJ_CHANGE); | |
3f86b832 | 890 | } |
db1c291a AS |
891 | if (sbs->manager_present) { |
892 | for (id = 0; id < MAX_SBS_BAT; ++id) { | |
893 | if (!(sbs->batteries_supported & (1 << id))) | |
894 | continue; | |
895 | bat = &sbs->battery[id]; | |
896 | saved_battery_state = bat->present; | |
897 | acpi_battery_read(bat); | |
898 | if (saved_battery_state == bat->present) | |
899 | continue; | |
94f6c086 | 900 | #ifdef CONFIG_ACPI_PROC_EVENT |
db1c291a AS |
901 | acpi_bus_generate_proc_event4(ACPI_BATTERY_CLASS, |
902 | bat->name, | |
903 | ACPI_SBS_NOTIFY_STATUS, | |
904 | bat->present); | |
94f6c086 AS |
905 | #endif |
906 | kobject_uevent(&bat->bat.dev->kobj, KOBJ_CHANGE); | |
3f86b832 | 907 | } |
3f86b832 | 908 | } |
3f86b832 RT |
909 | } |
910 | ||
3f86b832 RT |
911 | static int acpi_sbs_add(struct acpi_device *device) |
912 | { | |
db1c291a AS |
913 | struct acpi_sbs *sbs; |
914 | int result = 0; | |
6d15702c | 915 | int id; |
3f86b832 | 916 | |
36bcbec7 | 917 | sbs = kzalloc(sizeof(struct acpi_sbs), GFP_KERNEL); |
3f86b832 | 918 | if (!sbs) { |
72206233 VL |
919 | result = -ENOMEM; |
920 | goto end; | |
3f86b832 | 921 | } |
3f86b832 | 922 | |
db1c291a | 923 | mutex_init(&sbs->lock); |
72206233 | 924 | |
91087dfa | 925 | sbs->hc = acpi_driver_data(device->parent); |
db1c291a | 926 | sbs->device = device; |
3f86b832 RT |
927 | strcpy(acpi_device_name(device), ACPI_SBS_DEVICE_NAME); |
928 | strcpy(acpi_device_class(device), ACPI_SBS_CLASS); | |
db89b4f0 | 929 | device->driver_data = sbs; |
3f86b832 | 930 | |
db1c291a | 931 | result = acpi_charger_add(sbs); |
72206233 VL |
932 | if (result) |
933 | goto end; | |
3f86b832 | 934 | |
db1c291a AS |
935 | result = acpi_manager_get_info(sbs); |
936 | if (!result) { | |
937 | sbs->manager_present = 1; | |
938 | for (id = 0; id < MAX_SBS_BAT; ++id) | |
939 | if ((sbs->batteries_supported & (1 << id))) | |
940 | acpi_battery_add(sbs, id); | |
941 | } else | |
942 | acpi_battery_add(sbs, 0); | |
943 | acpi_smbus_register_callback(sbs->hc, acpi_sbs_callback, sbs); | |
3f86b832 | 944 | end: |
db1c291a AS |
945 | if (result) |
946 | acpi_sbs_remove(device, 0); | |
635227ee | 947 | return result; |
3f86b832 RT |
948 | } |
949 | ||
72206233 | 950 | static int acpi_sbs_remove(struct acpi_device *device, int type) |
3f86b832 | 951 | { |
cece9014 | 952 | struct acpi_sbs *sbs; |
3f86b832 RT |
953 | int id; |
954 | ||
db1c291a | 955 | if (!device) |
963497c1 | 956 | return -EINVAL; |
72206233 | 957 | sbs = acpi_driver_data(device); |
db1c291a | 958 | if (!sbs) |
635227ee | 959 | return -EINVAL; |
db1c291a AS |
960 | mutex_lock(&sbs->lock); |
961 | acpi_smbus_unregister_callback(sbs->hc); | |
962 | for (id = 0; id < MAX_SBS_BAT; ++id) | |
3f86b832 | 963 | acpi_battery_remove(sbs, id); |
db1c291a AS |
964 | acpi_charger_remove(sbs); |
965 | mutex_unlock(&sbs->lock); | |
966 | mutex_destroy(&sbs->lock); | |
3f86b832 | 967 | kfree(sbs); |
635227ee | 968 | return 0; |
3f86b832 RT |
969 | } |
970 | ||
72206233 VL |
971 | static void acpi_sbs_rmdirs(void) |
972 | { | |
fdcedbba | 973 | #ifdef CONFIG_ACPI_PROCFS_POWER |
72206233 VL |
974 | if (acpi_ac_dir) { |
975 | acpi_unlock_ac_dir(acpi_ac_dir); | |
976 | acpi_ac_dir = NULL; | |
977 | } | |
978 | if (acpi_battery_dir) { | |
979 | acpi_unlock_battery_dir(acpi_battery_dir); | |
980 | acpi_battery_dir = NULL; | |
981 | } | |
66e4b72b | 982 | #endif |
72206233 VL |
983 | } |
984 | ||
985 | static int acpi_sbs_resume(struct acpi_device *device) | |
986 | { | |
987 | struct acpi_sbs *sbs; | |
72206233 VL |
988 | if (!device) |
989 | return -EINVAL; | |
72206233 | 990 | sbs = device->driver_data; |
db1c291a | 991 | acpi_sbs_callback(sbs); |
72206233 VL |
992 | return 0; |
993 | } | |
994 | ||
94f6c086 AS |
995 | static struct acpi_driver acpi_sbs_driver = { |
996 | .name = "sbs", | |
997 | .class = ACPI_SBS_CLASS, | |
998 | .ids = sbs_device_ids, | |
999 | .ops = { | |
1000 | .add = acpi_sbs_add, | |
1001 | .remove = acpi_sbs_remove, | |
1002 | .resume = acpi_sbs_resume, | |
1003 | }, | |
1004 | }; | |
1005 | ||
3f86b832 RT |
1006 | static int __init acpi_sbs_init(void) |
1007 | { | |
1008 | int result = 0; | |
1009 | ||
b20d2aeb LB |
1010 | if (acpi_disabled) |
1011 | return -ENODEV; | |
fdcedbba | 1012 | #ifdef CONFIG_ACPI_PROCFS_POWER |
3f86b832 | 1013 | acpi_ac_dir = acpi_lock_ac_dir(); |
94f6c086 | 1014 | if (!acpi_ac_dir) |
635227ee | 1015 | return -ENODEV; |
3f86b832 RT |
1016 | acpi_battery_dir = acpi_lock_battery_dir(); |
1017 | if (!acpi_battery_dir) { | |
72206233 | 1018 | acpi_sbs_rmdirs(); |
635227ee | 1019 | return -ENODEV; |
3f86b832 | 1020 | } |
66e4b72b | 1021 | #endif |
3f86b832 RT |
1022 | result = acpi_bus_register_driver(&acpi_sbs_driver); |
1023 | if (result < 0) { | |
72206233 | 1024 | acpi_sbs_rmdirs(); |
635227ee | 1025 | return -ENODEV; |
3f86b832 | 1026 | } |
635227ee | 1027 | return 0; |
3f86b832 RT |
1028 | } |
1029 | ||
1030 | static void __exit acpi_sbs_exit(void) | |
1031 | { | |
3f86b832 | 1032 | acpi_bus_unregister_driver(&acpi_sbs_driver); |
72206233 | 1033 | acpi_sbs_rmdirs(); |
635227ee | 1034 | return; |
3f86b832 RT |
1035 | } |
1036 | ||
1037 | module_init(acpi_sbs_init); | |
1038 | module_exit(acpi_sbs_exit); |