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1da177e4 LT |
1 | /* |
2 | * acpi_button.c - ACPI Button Driver ($Revision: 30 $) | |
3 | * | |
4 | * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com> | |
5 | * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> | |
6 | * | |
7 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or (at | |
12 | * your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, but | |
15 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License along | |
20 | * with this program; if not, write to the Free Software Foundation, Inc., | |
21 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. | |
22 | * | |
23 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
24 | */ | |
25 | ||
26 | #include <linux/kernel.h> | |
27 | #include <linux/module.h> | |
28 | #include <linux/init.h> | |
b34a8030 AS |
29 | #include <linux/types.h> |
30 | #include <linux/proc_fs.h> | |
31 | #include <linux/seq_file.h> | |
c0968f0e | 32 | #include <linux/input.h> |
1da177e4 LT |
33 | #include <acpi/acpi_bus.h> |
34 | #include <acpi/acpi_drivers.h> | |
35 | ||
1da177e4 | 36 | #define ACPI_BUTTON_COMPONENT 0x00080000 |
1da177e4 | 37 | #define ACPI_BUTTON_CLASS "button" |
b34a8030 AS |
38 | #define ACPI_BUTTON_FILE_INFO "info" |
39 | #define ACPI_BUTTON_FILE_STATE "state" | |
40 | #define ACPI_BUTTON_TYPE_UNKNOWN 0x00 | |
1da177e4 LT |
41 | #define ACPI_BUTTON_NOTIFY_STATUS 0x80 |
42 | ||
43 | #define ACPI_BUTTON_SUBCLASS_POWER "power" | |
4be44fcd | 44 | #define ACPI_BUTTON_HID_POWER "PNP0C0C" |
1da177e4 LT |
45 | #define ACPI_BUTTON_DEVICE_NAME_POWER "Power Button (CM)" |
46 | #define ACPI_BUTTON_DEVICE_NAME_POWERF "Power Button (FF)" | |
47 | #define ACPI_BUTTON_TYPE_POWER 0x01 | |
48 | #define ACPI_BUTTON_TYPE_POWERF 0x02 | |
49 | ||
50 | #define ACPI_BUTTON_SUBCLASS_SLEEP "sleep" | |
51 | #define ACPI_BUTTON_HID_SLEEP "PNP0C0E" | |
52 | #define ACPI_BUTTON_DEVICE_NAME_SLEEP "Sleep Button (CM)" | |
53 | #define ACPI_BUTTON_DEVICE_NAME_SLEEPF "Sleep Button (FF)" | |
54 | #define ACPI_BUTTON_TYPE_SLEEP 0x03 | |
55 | #define ACPI_BUTTON_TYPE_SLEEPF 0x04 | |
56 | ||
57 | #define ACPI_BUTTON_SUBCLASS_LID "lid" | |
58 | #define ACPI_BUTTON_HID_LID "PNP0C0D" | |
59 | #define ACPI_BUTTON_DEVICE_NAME_LID "Lid Switch" | |
60 | #define ACPI_BUTTON_TYPE_LID 0x05 | |
61 | ||
62 | #define _COMPONENT ACPI_BUTTON_COMPONENT | |
f52fd66d | 63 | ACPI_MODULE_NAME("button"); |
1da177e4 | 64 | |
c0968f0e | 65 | MODULE_AUTHOR("Paul Diefenbaugh"); |
7cda93e0 | 66 | MODULE_DESCRIPTION("ACPI Button Driver"); |
1da177e4 LT |
67 | MODULE_LICENSE("GPL"); |
68 | ||
1ba90e3a TR |
69 | static const struct acpi_device_id button_device_ids[] = { |
70 | {ACPI_BUTTON_HID_LID, 0}, | |
71 | {ACPI_BUTTON_HID_SLEEP, 0}, | |
72 | {ACPI_BUTTON_HID_SLEEPF, 0}, | |
73 | {ACPI_BUTTON_HID_POWER, 0}, | |
74 | {ACPI_BUTTON_HID_POWERF, 0}, | |
75 | {"", 0}, | |
76 | }; | |
77 | MODULE_DEVICE_TABLE(acpi, button_device_ids); | |
78 | ||
4be44fcd LB |
79 | static int acpi_button_add(struct acpi_device *device); |
80 | static int acpi_button_remove(struct acpi_device *device, int type); | |
b34a8030 AS |
81 | static int acpi_button_info_open_fs(struct inode *inode, struct file *file); |
82 | static int acpi_button_state_open_fs(struct inode *inode, struct file *file); | |
1da177e4 LT |
83 | |
84 | static struct acpi_driver acpi_button_driver = { | |
c2b6705b | 85 | .name = "button", |
4be44fcd | 86 | .class = ACPI_BUTTON_CLASS, |
1ba90e3a | 87 | .ids = button_device_ids, |
4be44fcd LB |
88 | .ops = { |
89 | .add = acpi_button_add, | |
90 | .remove = acpi_button_remove, | |
c0968f0e | 91 | }, |
1da177e4 LT |
92 | }; |
93 | ||
94 | struct acpi_button { | |
4be44fcd | 95 | struct acpi_device *device; /* Fixed button kludge */ |
c0968f0e DT |
96 | unsigned int type; |
97 | struct input_dev *input; | |
98 | char phys[32]; /* for input device */ | |
4be44fcd | 99 | unsigned long pushed; |
1da177e4 LT |
100 | }; |
101 | ||
d7508032 | 102 | static const struct file_operations acpi_button_info_fops = { |
4be44fcd LB |
103 | .open = acpi_button_info_open_fs, |
104 | .read = seq_read, | |
105 | .llseek = seq_lseek, | |
106 | .release = single_release, | |
b34a8030 AS |
107 | }; |
108 | ||
d7508032 | 109 | static const struct file_operations acpi_button_state_fops = { |
4be44fcd LB |
110 | .open = acpi_button_state_open_fs, |
111 | .read = seq_read, | |
112 | .llseek = seq_lseek, | |
113 | .release = single_release, | |
b34a8030 | 114 | }; |
4be44fcd | 115 | |
b34a8030 AS |
116 | /* -------------------------------------------------------------------------- |
117 | FS Interface (/proc) | |
118 | -------------------------------------------------------------------------- */ | |
119 | ||
4be44fcd | 120 | static struct proc_dir_entry *acpi_button_dir; |
b34a8030 AS |
121 | |
122 | static int acpi_button_info_seq_show(struct seq_file *seq, void *offset) | |
123 | { | |
c0968f0e | 124 | struct acpi_button *button = seq->private; |
b34a8030 AS |
125 | |
126 | if (!button || !button->device) | |
d550d98d | 127 | return 0; |
b34a8030 | 128 | |
4be44fcd LB |
129 | seq_printf(seq, "type: %s\n", |
130 | acpi_device_name(button->device)); | |
b34a8030 | 131 | |
d550d98d | 132 | return 0; |
b34a8030 AS |
133 | } |
134 | ||
135 | static int acpi_button_info_open_fs(struct inode *inode, struct file *file) | |
136 | { | |
137 | return single_open(file, acpi_button_info_seq_show, PDE(inode)->data); | |
138 | } | |
4be44fcd | 139 | |
b34a8030 AS |
140 | static int acpi_button_state_seq_show(struct seq_file *seq, void *offset) |
141 | { | |
c0968f0e | 142 | struct acpi_button *button = seq->private; |
4be44fcd LB |
143 | acpi_status status; |
144 | unsigned long state; | |
b34a8030 | 145 | |
b34a8030 | 146 | if (!button || !button->device) |
d550d98d | 147 | return 0; |
b34a8030 | 148 | |
27b1d3e8 | 149 | status = acpi_evaluate_integer(button->device->handle, "_LID", NULL, &state); |
c0968f0e DT |
150 | seq_printf(seq, "state: %s\n", |
151 | ACPI_FAILURE(status) ? "unsupported" : | |
152 | (state ? "open" : "closed")); | |
d550d98d | 153 | return 0; |
b34a8030 AS |
154 | } |
155 | ||
156 | static int acpi_button_state_open_fs(struct inode *inode, struct file *file) | |
157 | { | |
158 | return single_open(file, acpi_button_state_seq_show, PDE(inode)->data); | |
159 | } | |
160 | ||
161 | static struct proc_dir_entry *acpi_power_dir; | |
162 | static struct proc_dir_entry *acpi_sleep_dir; | |
163 | static struct proc_dir_entry *acpi_lid_dir; | |
164 | ||
4be44fcd | 165 | static int acpi_button_add_fs(struct acpi_device *device) |
b34a8030 | 166 | { |
4be44fcd | 167 | struct proc_dir_entry *entry = NULL; |
c0968f0e | 168 | struct acpi_button *button; |
b34a8030 AS |
169 | |
170 | if (!device || !acpi_driver_data(device)) | |
d550d98d | 171 | return -EINVAL; |
b34a8030 AS |
172 | |
173 | button = acpi_driver_data(device); | |
174 | ||
175 | switch (button->type) { | |
176 | case ACPI_BUTTON_TYPE_POWER: | |
177 | case ACPI_BUTTON_TYPE_POWERF: | |
178 | if (!acpi_power_dir) | |
4be44fcd LB |
179 | acpi_power_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_POWER, |
180 | acpi_button_dir); | |
b34a8030 AS |
181 | entry = acpi_power_dir; |
182 | break; | |
183 | case ACPI_BUTTON_TYPE_SLEEP: | |
184 | case ACPI_BUTTON_TYPE_SLEEPF: | |
185 | if (!acpi_sleep_dir) | |
4be44fcd LB |
186 | acpi_sleep_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_SLEEP, |
187 | acpi_button_dir); | |
b34a8030 AS |
188 | entry = acpi_sleep_dir; |
189 | break; | |
190 | case ACPI_BUTTON_TYPE_LID: | |
191 | if (!acpi_lid_dir) | |
4be44fcd LB |
192 | acpi_lid_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_LID, |
193 | acpi_button_dir); | |
b34a8030 AS |
194 | entry = acpi_lid_dir; |
195 | break; | |
196 | } | |
197 | ||
198 | if (!entry) | |
d550d98d | 199 | return -ENODEV; |
b34a8030 AS |
200 | entry->owner = THIS_MODULE; |
201 | ||
202 | acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), entry); | |
203 | if (!acpi_device_dir(device)) | |
d550d98d | 204 | return -ENODEV; |
b34a8030 AS |
205 | acpi_device_dir(device)->owner = THIS_MODULE; |
206 | ||
207 | /* 'info' [R] */ | |
208 | entry = create_proc_entry(ACPI_BUTTON_FILE_INFO, | |
4be44fcd | 209 | S_IRUGO, acpi_device_dir(device)); |
b34a8030 | 210 | if (!entry) |
d550d98d | 211 | return -ENODEV; |
b34a8030 AS |
212 | else { |
213 | entry->proc_fops = &acpi_button_info_fops; | |
214 | entry->data = acpi_driver_data(device); | |
215 | entry->owner = THIS_MODULE; | |
216 | } | |
217 | ||
218 | /* show lid state [R] */ | |
219 | if (button->type == ACPI_BUTTON_TYPE_LID) { | |
220 | entry = create_proc_entry(ACPI_BUTTON_FILE_STATE, | |
4be44fcd | 221 | S_IRUGO, acpi_device_dir(device)); |
b34a8030 | 222 | if (!entry) |
a6fc6720 | 223 | return -ENODEV; |
b34a8030 AS |
224 | else { |
225 | entry->proc_fops = &acpi_button_state_fops; | |
226 | entry->data = acpi_driver_data(device); | |
227 | entry->owner = THIS_MODULE; | |
228 | } | |
229 | } | |
230 | ||
d550d98d | 231 | return 0; |
b34a8030 AS |
232 | } |
233 | ||
4be44fcd | 234 | static int acpi_button_remove_fs(struct acpi_device *device) |
b34a8030 | 235 | { |
c0968f0e | 236 | struct acpi_button *button = acpi_driver_data(device); |
b34a8030 | 237 | |
b34a8030 AS |
238 | if (acpi_device_dir(device)) { |
239 | if (button->type == ACPI_BUTTON_TYPE_LID) | |
240 | remove_proc_entry(ACPI_BUTTON_FILE_STATE, | |
4be44fcd | 241 | acpi_device_dir(device)); |
b34a8030 | 242 | remove_proc_entry(ACPI_BUTTON_FILE_INFO, |
4be44fcd | 243 | acpi_device_dir(device)); |
b34a8030 AS |
244 | |
245 | remove_proc_entry(acpi_device_bid(device), | |
4be44fcd | 246 | acpi_device_dir(device)->parent); |
b34a8030 AS |
247 | acpi_device_dir(device) = NULL; |
248 | } | |
249 | ||
d550d98d | 250 | return 0; |
b34a8030 AS |
251 | } |
252 | ||
1da177e4 LT |
253 | /* -------------------------------------------------------------------------- |
254 | Driver Interface | |
255 | -------------------------------------------------------------------------- */ | |
256 | ||
4be44fcd | 257 | static void acpi_button_notify(acpi_handle handle, u32 event, void *data) |
1da177e4 | 258 | { |
c0968f0e DT |
259 | struct acpi_button *button = data; |
260 | struct input_dev *input; | |
1da177e4 LT |
261 | |
262 | if (!button || !button->device) | |
d550d98d | 263 | return; |
1da177e4 LT |
264 | |
265 | switch (event) { | |
266 | case ACPI_BUTTON_NOTIFY_STATUS: | |
c0968f0e DT |
267 | input = button->input; |
268 | ||
269 | if (button->type == ACPI_BUTTON_TYPE_LID) { | |
270 | struct acpi_handle *handle = button->device->handle; | |
271 | unsigned long state; | |
272 | ||
273 | if (!ACPI_FAILURE(acpi_evaluate_integer(handle, "_LID", | |
274 | NULL, &state))) | |
275 | input_report_switch(input, SW_LID, !state); | |
276 | ||
277 | } else { | |
278 | int keycode = test_bit(KEY_SLEEP, input->keybit) ? | |
279 | KEY_SLEEP : KEY_POWER; | |
280 | ||
281 | input_report_key(input, keycode, 1); | |
282 | input_sync(input); | |
283 | input_report_key(input, keycode, 0); | |
284 | } | |
285 | input_sync(input); | |
286 | ||
14e04fb3 | 287 | acpi_bus_generate_proc_event(button->device, event, |
4be44fcd | 288 | ++button->pushed); |
1da177e4 LT |
289 | break; |
290 | default: | |
291 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, | |
4be44fcd | 292 | "Unsupported event [0x%x]\n", event)); |
1da177e4 LT |
293 | break; |
294 | } | |
295 | ||
d550d98d | 296 | return; |
1da177e4 LT |
297 | } |
298 | ||
4be44fcd | 299 | static acpi_status acpi_button_notify_fixed(void *data) |
1da177e4 | 300 | { |
c0968f0e | 301 | struct acpi_button *button = data; |
1da177e4 | 302 | |
b34a8030 | 303 | if (!button) |
d550d98d | 304 | return AE_BAD_PARAMETER; |
1da177e4 | 305 | |
27b1d3e8 | 306 | acpi_button_notify(button->device->handle, ACPI_BUTTON_NOTIFY_STATUS, button); |
1da177e4 | 307 | |
d550d98d | 308 | return AE_OK; |
1da177e4 LT |
309 | } |
310 | ||
c0968f0e | 311 | static int acpi_button_install_notify_handlers(struct acpi_button *button) |
1da177e4 | 312 | { |
c0968f0e | 313 | acpi_status status; |
1da177e4 | 314 | |
c0968f0e DT |
315 | switch (button->type) { |
316 | case ACPI_BUTTON_TYPE_POWERF: | |
317 | status = | |
318 | acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, | |
319 | acpi_button_notify_fixed, | |
320 | button); | |
321 | break; | |
322 | case ACPI_BUTTON_TYPE_SLEEPF: | |
323 | status = | |
324 | acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, | |
325 | acpi_button_notify_fixed, | |
326 | button); | |
327 | break; | |
328 | default: | |
329 | status = acpi_install_notify_handler(button->device->handle, | |
330 | ACPI_DEVICE_NOTIFY, | |
331 | acpi_button_notify, | |
332 | button); | |
333 | break; | |
334 | } | |
335 | ||
336 | return ACPI_FAILURE(status) ? -ENODEV : 0; | |
337 | } | |
338 | ||
339 | static void acpi_button_remove_notify_handlers(struct acpi_button *button) | |
340 | { | |
341 | switch (button->type) { | |
342 | case ACPI_BUTTON_TYPE_POWERF: | |
343 | acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, | |
344 | acpi_button_notify_fixed); | |
345 | break; | |
346 | case ACPI_BUTTON_TYPE_SLEEPF: | |
347 | acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, | |
348 | acpi_button_notify_fixed); | |
349 | break; | |
350 | default: | |
351 | acpi_remove_notify_handler(button->device->handle, | |
352 | ACPI_DEVICE_NOTIFY, | |
353 | acpi_button_notify); | |
354 | break; | |
355 | } | |
356 | } | |
357 | ||
358 | static int acpi_button_add(struct acpi_device *device) | |
359 | { | |
360 | int error; | |
361 | struct acpi_button *button; | |
362 | struct input_dev *input; | |
1da177e4 LT |
363 | |
364 | if (!device) | |
d550d98d | 365 | return -EINVAL; |
1da177e4 | 366 | |
c0968f0e | 367 | button = kzalloc(sizeof(struct acpi_button), GFP_KERNEL); |
1da177e4 | 368 | if (!button) |
d550d98d | 369 | return -ENOMEM; |
1da177e4 LT |
370 | |
371 | button->device = device; | |
1da177e4 LT |
372 | acpi_driver_data(device) = button; |
373 | ||
c0968f0e DT |
374 | button->input = input = input_allocate_device(); |
375 | if (!input) { | |
376 | error = -ENOMEM; | |
377 | goto err_free_button; | |
378 | } | |
379 | ||
1da177e4 LT |
380 | /* |
381 | * Determine the button type (via hid), as fixed-feature buttons | |
382 | * need to be handled a bit differently than generic-space. | |
383 | */ | |
384 | if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_POWER)) { | |
385 | button->type = ACPI_BUTTON_TYPE_POWER; | |
4be44fcd LB |
386 | strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_POWER); |
387 | sprintf(acpi_device_class(device), "%s/%s", | |
1da177e4 | 388 | ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_POWER); |
4be44fcd | 389 | } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_POWERF)) { |
1da177e4 LT |
390 | button->type = ACPI_BUTTON_TYPE_POWERF; |
391 | strcpy(acpi_device_name(device), | |
4be44fcd LB |
392 | ACPI_BUTTON_DEVICE_NAME_POWERF); |
393 | sprintf(acpi_device_class(device), "%s/%s", | |
1da177e4 | 394 | ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_POWER); |
4be44fcd | 395 | } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_SLEEP)) { |
1da177e4 | 396 | button->type = ACPI_BUTTON_TYPE_SLEEP; |
4be44fcd LB |
397 | strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_SLEEP); |
398 | sprintf(acpi_device_class(device), "%s/%s", | |
1da177e4 | 399 | ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_SLEEP); |
4be44fcd | 400 | } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_SLEEPF)) { |
1da177e4 LT |
401 | button->type = ACPI_BUTTON_TYPE_SLEEPF; |
402 | strcpy(acpi_device_name(device), | |
4be44fcd LB |
403 | ACPI_BUTTON_DEVICE_NAME_SLEEPF); |
404 | sprintf(acpi_device_class(device), "%s/%s", | |
1da177e4 | 405 | ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_SLEEP); |
4be44fcd | 406 | } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_LID)) { |
1da177e4 | 407 | button->type = ACPI_BUTTON_TYPE_LID; |
4be44fcd LB |
408 | strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_LID); |
409 | sprintf(acpi_device_class(device), "%s/%s", | |
1da177e4 | 410 | ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_LID); |
4be44fcd | 411 | } else { |
6468463a LB |
412 | printk(KERN_ERR PREFIX "Unsupported hid [%s]\n", |
413 | acpi_device_hid(device)); | |
c0968f0e DT |
414 | error = -ENODEV; |
415 | goto err_free_input; | |
1da177e4 LT |
416 | } |
417 | ||
c0968f0e DT |
418 | error = acpi_button_add_fs(device); |
419 | if (error) | |
420 | goto err_free_input; | |
421 | ||
422 | error = acpi_button_install_notify_handlers(button); | |
423 | if (error) | |
424 | goto err_remove_fs; | |
425 | ||
426 | snprintf(button->phys, sizeof(button->phys), | |
427 | "%s/button/input0", acpi_device_hid(device)); | |
428 | ||
429 | input->name = acpi_device_name(device); | |
430 | input->phys = button->phys; | |
431 | input->id.bustype = BUS_HOST; | |
432 | input->id.product = button->type; | |
b34a8030 | 433 | |
1da177e4 | 434 | switch (button->type) { |
c0968f0e | 435 | case ACPI_BUTTON_TYPE_POWER: |
1da177e4 | 436 | case ACPI_BUTTON_TYPE_POWERF: |
c0968f0e DT |
437 | input->evbit[0] = BIT(EV_KEY); |
438 | set_bit(KEY_POWER, input->keybit); | |
1da177e4 | 439 | break; |
c0968f0e DT |
440 | |
441 | case ACPI_BUTTON_TYPE_SLEEP: | |
1da177e4 | 442 | case ACPI_BUTTON_TYPE_SLEEPF: |
c0968f0e DT |
443 | input->evbit[0] = BIT(EV_KEY); |
444 | set_bit(KEY_SLEEP, input->keybit); | |
1da177e4 | 445 | break; |
c0968f0e DT |
446 | |
447 | case ACPI_BUTTON_TYPE_LID: | |
448 | input->evbit[0] = BIT(EV_SW); | |
449 | set_bit(SW_LID, input->swbit); | |
1da177e4 LT |
450 | break; |
451 | } | |
452 | ||
c0968f0e DT |
453 | error = input_register_device(input); |
454 | if (error) | |
455 | goto err_remove_handlers; | |
1da177e4 LT |
456 | |
457 | if (device->wakeup.flags.valid) { | |
458 | /* Button's GPE is run-wake GPE */ | |
4be44fcd LB |
459 | acpi_set_gpe_type(device->wakeup.gpe_device, |
460 | device->wakeup.gpe_number, | |
461 | ACPI_GPE_TYPE_WAKE_RUN); | |
462 | acpi_enable_gpe(device->wakeup.gpe_device, | |
463 | device->wakeup.gpe_number, ACPI_NOT_ISR); | |
1da177e4 LT |
464 | device->wakeup.state.enabled = 1; |
465 | } | |
466 | ||
4be44fcd LB |
467 | printk(KERN_INFO PREFIX "%s [%s]\n", |
468 | acpi_device_name(device), acpi_device_bid(device)); | |
1da177e4 | 469 | |
c0968f0e | 470 | return 0; |
1da177e4 | 471 | |
c0968f0e DT |
472 | err_remove_handlers: |
473 | acpi_button_remove_notify_handlers(button); | |
474 | err_remove_fs: | |
475 | acpi_button_remove_fs(device); | |
476 | err_free_input: | |
477 | input_free_device(input); | |
478 | err_free_button: | |
479 | kfree(button); | |
480 | return error; | |
1da177e4 LT |
481 | } |
482 | ||
4be44fcd | 483 | static int acpi_button_remove(struct acpi_device *device, int type) |
1da177e4 | 484 | { |
c0968f0e | 485 | struct acpi_button *button; |
1da177e4 LT |
486 | |
487 | if (!device || !acpi_driver_data(device)) | |
d550d98d | 488 | return -EINVAL; |
1da177e4 LT |
489 | |
490 | button = acpi_driver_data(device); | |
491 | ||
c0968f0e | 492 | acpi_button_remove_notify_handlers(button); |
4be44fcd | 493 | acpi_button_remove_fs(device); |
c0968f0e | 494 | input_unregister_device(button->input); |
1da177e4 LT |
495 | kfree(button); |
496 | ||
d550d98d | 497 | return 0; |
1da177e4 LT |
498 | } |
499 | ||
4be44fcd | 500 | static int __init acpi_button_init(void) |
1da177e4 | 501 | { |
c0968f0e | 502 | int result; |
1da177e4 | 503 | |
b34a8030 AS |
504 | acpi_button_dir = proc_mkdir(ACPI_BUTTON_CLASS, acpi_root_dir); |
505 | if (!acpi_button_dir) | |
d550d98d | 506 | return -ENODEV; |
b34a8030 | 507 | acpi_button_dir->owner = THIS_MODULE; |
1da177e4 LT |
508 | result = acpi_bus_register_driver(&acpi_button_driver); |
509 | if (result < 0) { | |
b34a8030 | 510 | remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir); |
d550d98d | 511 | return -ENODEV; |
1da177e4 LT |
512 | } |
513 | ||
d550d98d | 514 | return 0; |
1da177e4 LT |
515 | } |
516 | ||
4be44fcd | 517 | static void __exit acpi_button_exit(void) |
1da177e4 | 518 | { |
1da177e4 LT |
519 | acpi_bus_unregister_driver(&acpi_button_driver); |
520 | ||
4be44fcd | 521 | if (acpi_power_dir) |
b34a8030 AS |
522 | remove_proc_entry(ACPI_BUTTON_SUBCLASS_POWER, acpi_button_dir); |
523 | if (acpi_sleep_dir) | |
524 | remove_proc_entry(ACPI_BUTTON_SUBCLASS_SLEEP, acpi_button_dir); | |
525 | if (acpi_lid_dir) | |
526 | remove_proc_entry(ACPI_BUTTON_SUBCLASS_LID, acpi_button_dir); | |
527 | remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir); | |
1da177e4 LT |
528 | } |
529 | ||
1da177e4 LT |
530 | module_init(acpi_button_init); |
531 | module_exit(acpi_button_exit); |