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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_CLASS "button" |
b34a8030 AS |
37 | #define ACPI_BUTTON_FILE_INFO "info" |
38 | #define ACPI_BUTTON_FILE_STATE "state" | |
39 | #define ACPI_BUTTON_TYPE_UNKNOWN 0x00 | |
1da177e4 LT |
40 | #define ACPI_BUTTON_NOTIFY_STATUS 0x80 |
41 | ||
42 | #define ACPI_BUTTON_SUBCLASS_POWER "power" | |
4be44fcd | 43 | #define ACPI_BUTTON_HID_POWER "PNP0C0C" |
1da177e4 LT |
44 | #define ACPI_BUTTON_DEVICE_NAME_POWER "Power Button (CM)" |
45 | #define ACPI_BUTTON_DEVICE_NAME_POWERF "Power Button (FF)" | |
46 | #define ACPI_BUTTON_TYPE_POWER 0x01 | |
47 | #define ACPI_BUTTON_TYPE_POWERF 0x02 | |
48 | ||
49 | #define ACPI_BUTTON_SUBCLASS_SLEEP "sleep" | |
50 | #define ACPI_BUTTON_HID_SLEEP "PNP0C0E" | |
51 | #define ACPI_BUTTON_DEVICE_NAME_SLEEP "Sleep Button (CM)" | |
52 | #define ACPI_BUTTON_DEVICE_NAME_SLEEPF "Sleep Button (FF)" | |
53 | #define ACPI_BUTTON_TYPE_SLEEP 0x03 | |
54 | #define ACPI_BUTTON_TYPE_SLEEPF 0x04 | |
55 | ||
56 | #define ACPI_BUTTON_SUBCLASS_LID "lid" | |
57 | #define ACPI_BUTTON_HID_LID "PNP0C0D" | |
58 | #define ACPI_BUTTON_DEVICE_NAME_LID "Lid Switch" | |
59 | #define ACPI_BUTTON_TYPE_LID 0x05 | |
60 | ||
61 | #define _COMPONENT ACPI_BUTTON_COMPONENT | |
f52fd66d | 62 | ACPI_MODULE_NAME("button"); |
1da177e4 | 63 | |
c0968f0e | 64 | MODULE_AUTHOR("Paul Diefenbaugh"); |
7cda93e0 | 65 | MODULE_DESCRIPTION("ACPI Button Driver"); |
1da177e4 LT |
66 | MODULE_LICENSE("GPL"); |
67 | ||
1ba90e3a TR |
68 | static const struct acpi_device_id button_device_ids[] = { |
69 | {ACPI_BUTTON_HID_LID, 0}, | |
70 | {ACPI_BUTTON_HID_SLEEP, 0}, | |
71 | {ACPI_BUTTON_HID_SLEEPF, 0}, | |
72 | {ACPI_BUTTON_HID_POWER, 0}, | |
73 | {ACPI_BUTTON_HID_POWERF, 0}, | |
74 | {"", 0}, | |
75 | }; | |
76 | MODULE_DEVICE_TABLE(acpi, button_device_ids); | |
77 | ||
4be44fcd LB |
78 | static int acpi_button_add(struct acpi_device *device); |
79 | static int acpi_button_remove(struct acpi_device *device, int type); | |
23de5d9e | 80 | static int acpi_button_resume(struct acpi_device *device); |
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, | |
23de5d9e | 90 | .resume = acpi_button_resume, |
4be44fcd | 91 | .remove = acpi_button_remove, |
c0968f0e | 92 | }, |
1da177e4 LT |
93 | }; |
94 | ||
95 | struct acpi_button { | |
4be44fcd | 96 | struct acpi_device *device; /* Fixed button kludge */ |
c0968f0e DT |
97 | unsigned int type; |
98 | struct input_dev *input; | |
99 | char phys[32]; /* for input device */ | |
4be44fcd | 100 | unsigned long pushed; |
1da177e4 LT |
101 | }; |
102 | ||
d7508032 | 103 | static const struct file_operations acpi_button_info_fops = { |
cf7acfab | 104 | .owner = THIS_MODULE, |
4be44fcd LB |
105 | .open = acpi_button_info_open_fs, |
106 | .read = seq_read, | |
107 | .llseek = seq_lseek, | |
108 | .release = single_release, | |
b34a8030 AS |
109 | }; |
110 | ||
d7508032 | 111 | static const struct file_operations acpi_button_state_fops = { |
cf7acfab | 112 | .owner = THIS_MODULE, |
4be44fcd LB |
113 | .open = acpi_button_state_open_fs, |
114 | .read = seq_read, | |
115 | .llseek = seq_lseek, | |
116 | .release = single_release, | |
b34a8030 | 117 | }; |
4be44fcd | 118 | |
b34a8030 AS |
119 | /* -------------------------------------------------------------------------- |
120 | FS Interface (/proc) | |
121 | -------------------------------------------------------------------------- */ | |
122 | ||
4be44fcd | 123 | static struct proc_dir_entry *acpi_button_dir; |
b34a8030 AS |
124 | |
125 | static int acpi_button_info_seq_show(struct seq_file *seq, void *offset) | |
126 | { | |
c0968f0e | 127 | struct acpi_button *button = seq->private; |
b34a8030 AS |
128 | |
129 | if (!button || !button->device) | |
d550d98d | 130 | return 0; |
b34a8030 | 131 | |
4be44fcd LB |
132 | seq_printf(seq, "type: %s\n", |
133 | acpi_device_name(button->device)); | |
b34a8030 | 134 | |
d550d98d | 135 | return 0; |
b34a8030 AS |
136 | } |
137 | ||
138 | static int acpi_button_info_open_fs(struct inode *inode, struct file *file) | |
139 | { | |
140 | return single_open(file, acpi_button_info_seq_show, PDE(inode)->data); | |
141 | } | |
4be44fcd | 142 | |
b34a8030 AS |
143 | static int acpi_button_state_seq_show(struct seq_file *seq, void *offset) |
144 | { | |
c0968f0e | 145 | struct acpi_button *button = seq->private; |
4be44fcd | 146 | acpi_status status; |
27663c58 | 147 | unsigned long long state; |
b34a8030 | 148 | |
b34a8030 | 149 | if (!button || !button->device) |
d550d98d | 150 | return 0; |
b34a8030 | 151 | |
27b1d3e8 | 152 | status = acpi_evaluate_integer(button->device->handle, "_LID", NULL, &state); |
c0968f0e DT |
153 | seq_printf(seq, "state: %s\n", |
154 | ACPI_FAILURE(status) ? "unsupported" : | |
155 | (state ? "open" : "closed")); | |
d550d98d | 156 | return 0; |
b34a8030 AS |
157 | } |
158 | ||
159 | static int acpi_button_state_open_fs(struct inode *inode, struct file *file) | |
160 | { | |
161 | return single_open(file, acpi_button_state_seq_show, PDE(inode)->data); | |
162 | } | |
163 | ||
164 | static struct proc_dir_entry *acpi_power_dir; | |
165 | static struct proc_dir_entry *acpi_sleep_dir; | |
166 | static struct proc_dir_entry *acpi_lid_dir; | |
167 | ||
4be44fcd | 168 | static int acpi_button_add_fs(struct acpi_device *device) |
b34a8030 | 169 | { |
4be44fcd | 170 | struct proc_dir_entry *entry = NULL; |
c0968f0e | 171 | struct acpi_button *button; |
b34a8030 AS |
172 | |
173 | if (!device || !acpi_driver_data(device)) | |
d550d98d | 174 | return -EINVAL; |
b34a8030 AS |
175 | |
176 | button = acpi_driver_data(device); | |
177 | ||
178 | switch (button->type) { | |
179 | case ACPI_BUTTON_TYPE_POWER: | |
180 | case ACPI_BUTTON_TYPE_POWERF: | |
181 | if (!acpi_power_dir) | |
4be44fcd LB |
182 | acpi_power_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_POWER, |
183 | acpi_button_dir); | |
b34a8030 AS |
184 | entry = acpi_power_dir; |
185 | break; | |
186 | case ACPI_BUTTON_TYPE_SLEEP: | |
187 | case ACPI_BUTTON_TYPE_SLEEPF: | |
188 | if (!acpi_sleep_dir) | |
4be44fcd LB |
189 | acpi_sleep_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_SLEEP, |
190 | acpi_button_dir); | |
b34a8030 AS |
191 | entry = acpi_sleep_dir; |
192 | break; | |
193 | case ACPI_BUTTON_TYPE_LID: | |
194 | if (!acpi_lid_dir) | |
4be44fcd LB |
195 | acpi_lid_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_LID, |
196 | acpi_button_dir); | |
b34a8030 AS |
197 | entry = acpi_lid_dir; |
198 | break; | |
199 | } | |
200 | ||
201 | if (!entry) | |
d550d98d | 202 | return -ENODEV; |
b34a8030 AS |
203 | |
204 | acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), entry); | |
205 | if (!acpi_device_dir(device)) | |
d550d98d | 206 | return -ENODEV; |
b34a8030 AS |
207 | |
208 | /* 'info' [R] */ | |
cf7acfab DL |
209 | entry = proc_create_data(ACPI_BUTTON_FILE_INFO, |
210 | S_IRUGO, acpi_device_dir(device), | |
211 | &acpi_button_info_fops, | |
212 | acpi_driver_data(device)); | |
b34a8030 | 213 | if (!entry) |
d550d98d | 214 | return -ENODEV; |
b34a8030 AS |
215 | |
216 | /* show lid state [R] */ | |
217 | if (button->type == ACPI_BUTTON_TYPE_LID) { | |
cf7acfab DL |
218 | entry = proc_create_data(ACPI_BUTTON_FILE_STATE, |
219 | S_IRUGO, acpi_device_dir(device), | |
220 | &acpi_button_state_fops, | |
221 | acpi_driver_data(device)); | |
b34a8030 | 222 | if (!entry) |
a6fc6720 | 223 | return -ENODEV; |
b34a8030 AS |
224 | } |
225 | ||
d550d98d | 226 | return 0; |
b34a8030 AS |
227 | } |
228 | ||
4be44fcd | 229 | static int acpi_button_remove_fs(struct acpi_device *device) |
b34a8030 | 230 | { |
c0968f0e | 231 | struct acpi_button *button = acpi_driver_data(device); |
b34a8030 | 232 | |
b34a8030 AS |
233 | if (acpi_device_dir(device)) { |
234 | if (button->type == ACPI_BUTTON_TYPE_LID) | |
235 | remove_proc_entry(ACPI_BUTTON_FILE_STATE, | |
4be44fcd | 236 | acpi_device_dir(device)); |
b34a8030 | 237 | remove_proc_entry(ACPI_BUTTON_FILE_INFO, |
4be44fcd | 238 | acpi_device_dir(device)); |
b34a8030 AS |
239 | |
240 | remove_proc_entry(acpi_device_bid(device), | |
4be44fcd | 241 | acpi_device_dir(device)->parent); |
b34a8030 AS |
242 | acpi_device_dir(device) = NULL; |
243 | } | |
244 | ||
d550d98d | 245 | return 0; |
b34a8030 AS |
246 | } |
247 | ||
1da177e4 LT |
248 | /* -------------------------------------------------------------------------- |
249 | Driver Interface | |
250 | -------------------------------------------------------------------------- */ | |
23de5d9e AS |
251 | static int acpi_lid_send_state(struct acpi_button *button) |
252 | { | |
27663c58 | 253 | unsigned long long state; |
23de5d9e AS |
254 | acpi_status status; |
255 | ||
256 | status = acpi_evaluate_integer(button->device->handle, "_LID", NULL, | |
257 | &state); | |
258 | if (ACPI_FAILURE(status)) | |
259 | return -ENODEV; | |
260 | /* input layer checks if event is redundant */ | |
261 | input_report_switch(button->input, SW_LID, !state); | |
df316e93 | 262 | input_sync(button->input); |
23de5d9e AS |
263 | return 0; |
264 | } | |
1da177e4 | 265 | |
4be44fcd | 266 | static void acpi_button_notify(acpi_handle handle, u32 event, void *data) |
1da177e4 | 267 | { |
c0968f0e DT |
268 | struct acpi_button *button = data; |
269 | struct input_dev *input; | |
1da177e4 LT |
270 | |
271 | if (!button || !button->device) | |
d550d98d | 272 | return; |
1da177e4 LT |
273 | |
274 | switch (event) { | |
275 | case ACPI_BUTTON_NOTIFY_STATUS: | |
c0968f0e | 276 | input = button->input; |
c0968f0e | 277 | if (button->type == ACPI_BUTTON_TYPE_LID) { |
23de5d9e | 278 | acpi_lid_send_state(button); |
c0968f0e DT |
279 | } else { |
280 | int keycode = test_bit(KEY_SLEEP, input->keybit) ? | |
281 | KEY_SLEEP : KEY_POWER; | |
282 | ||
283 | input_report_key(input, keycode, 1); | |
284 | input_sync(input); | |
285 | input_report_key(input, keycode, 0); | |
df316e93 | 286 | input_sync(input); |
c0968f0e | 287 | } |
c0968f0e | 288 | |
14e04fb3 | 289 | acpi_bus_generate_proc_event(button->device, event, |
4be44fcd | 290 | ++button->pushed); |
1da177e4 LT |
291 | break; |
292 | default: | |
293 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, | |
4be44fcd | 294 | "Unsupported event [0x%x]\n", event)); |
1da177e4 LT |
295 | break; |
296 | } | |
297 | ||
d550d98d | 298 | return; |
1da177e4 LT |
299 | } |
300 | ||
4be44fcd | 301 | static acpi_status acpi_button_notify_fixed(void *data) |
1da177e4 | 302 | { |
c0968f0e | 303 | struct acpi_button *button = data; |
1da177e4 | 304 | |
b34a8030 | 305 | if (!button) |
d550d98d | 306 | return AE_BAD_PARAMETER; |
1da177e4 | 307 | |
27b1d3e8 | 308 | acpi_button_notify(button->device->handle, ACPI_BUTTON_NOTIFY_STATUS, button); |
1da177e4 | 309 | |
d550d98d | 310 | return AE_OK; |
1da177e4 LT |
311 | } |
312 | ||
c0968f0e | 313 | static int acpi_button_install_notify_handlers(struct acpi_button *button) |
1da177e4 | 314 | { |
c0968f0e | 315 | acpi_status status; |
1da177e4 | 316 | |
c0968f0e DT |
317 | switch (button->type) { |
318 | case ACPI_BUTTON_TYPE_POWERF: | |
319 | status = | |
320 | acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, | |
321 | acpi_button_notify_fixed, | |
322 | button); | |
323 | break; | |
324 | case ACPI_BUTTON_TYPE_SLEEPF: | |
325 | status = | |
326 | acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, | |
327 | acpi_button_notify_fixed, | |
328 | button); | |
329 | break; | |
330 | default: | |
331 | status = acpi_install_notify_handler(button->device->handle, | |
332 | ACPI_DEVICE_NOTIFY, | |
333 | acpi_button_notify, | |
334 | button); | |
335 | break; | |
336 | } | |
337 | ||
338 | return ACPI_FAILURE(status) ? -ENODEV : 0; | |
339 | } | |
340 | ||
23de5d9e AS |
341 | static int acpi_button_resume(struct acpi_device *device) |
342 | { | |
343 | struct acpi_button *button; | |
344 | if (!device) | |
345 | return -EINVAL; | |
346 | button = acpi_driver_data(device); | |
347 | if (button && button->type == ACPI_BUTTON_TYPE_LID) | |
348 | return acpi_lid_send_state(button); | |
349 | return 0; | |
350 | } | |
351 | ||
c0968f0e DT |
352 | static void acpi_button_remove_notify_handlers(struct acpi_button *button) |
353 | { | |
354 | switch (button->type) { | |
355 | case ACPI_BUTTON_TYPE_POWERF: | |
356 | acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, | |
357 | acpi_button_notify_fixed); | |
358 | break; | |
359 | case ACPI_BUTTON_TYPE_SLEEPF: | |
360 | acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, | |
361 | acpi_button_notify_fixed); | |
362 | break; | |
363 | default: | |
364 | acpi_remove_notify_handler(button->device->handle, | |
365 | ACPI_DEVICE_NOTIFY, | |
366 | acpi_button_notify); | |
367 | break; | |
368 | } | |
369 | } | |
370 | ||
371 | static int acpi_button_add(struct acpi_device *device) | |
372 | { | |
373 | int error; | |
374 | struct acpi_button *button; | |
375 | struct input_dev *input; | |
1da177e4 LT |
376 | |
377 | if (!device) | |
d550d98d | 378 | return -EINVAL; |
1da177e4 | 379 | |
c0968f0e | 380 | button = kzalloc(sizeof(struct acpi_button), GFP_KERNEL); |
1da177e4 | 381 | if (!button) |
d550d98d | 382 | return -ENOMEM; |
1da177e4 LT |
383 | |
384 | button->device = device; | |
db89b4f0 | 385 | device->driver_data = button; |
1da177e4 | 386 | |
c0968f0e DT |
387 | button->input = input = input_allocate_device(); |
388 | if (!input) { | |
389 | error = -ENOMEM; | |
390 | goto err_free_button; | |
391 | } | |
392 | ||
1da177e4 LT |
393 | /* |
394 | * Determine the button type (via hid), as fixed-feature buttons | |
395 | * need to be handled a bit differently than generic-space. | |
396 | */ | |
397 | if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_POWER)) { | |
398 | button->type = ACPI_BUTTON_TYPE_POWER; | |
4be44fcd LB |
399 | strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_POWER); |
400 | sprintf(acpi_device_class(device), "%s/%s", | |
1da177e4 | 401 | ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_POWER); |
4be44fcd | 402 | } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_POWERF)) { |
1da177e4 LT |
403 | button->type = ACPI_BUTTON_TYPE_POWERF; |
404 | strcpy(acpi_device_name(device), | |
4be44fcd LB |
405 | ACPI_BUTTON_DEVICE_NAME_POWERF); |
406 | sprintf(acpi_device_class(device), "%s/%s", | |
1da177e4 | 407 | ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_POWER); |
4be44fcd | 408 | } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_SLEEP)) { |
1da177e4 | 409 | button->type = ACPI_BUTTON_TYPE_SLEEP; |
4be44fcd LB |
410 | strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_SLEEP); |
411 | sprintf(acpi_device_class(device), "%s/%s", | |
1da177e4 | 412 | ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_SLEEP); |
4be44fcd | 413 | } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_SLEEPF)) { |
1da177e4 LT |
414 | button->type = ACPI_BUTTON_TYPE_SLEEPF; |
415 | strcpy(acpi_device_name(device), | |
4be44fcd LB |
416 | ACPI_BUTTON_DEVICE_NAME_SLEEPF); |
417 | sprintf(acpi_device_class(device), "%s/%s", | |
1da177e4 | 418 | ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_SLEEP); |
4be44fcd | 419 | } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_LID)) { |
1da177e4 | 420 | button->type = ACPI_BUTTON_TYPE_LID; |
4be44fcd LB |
421 | strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_LID); |
422 | sprintf(acpi_device_class(device), "%s/%s", | |
1da177e4 | 423 | ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_LID); |
4be44fcd | 424 | } else { |
6468463a LB |
425 | printk(KERN_ERR PREFIX "Unsupported hid [%s]\n", |
426 | acpi_device_hid(device)); | |
c0968f0e DT |
427 | error = -ENODEV; |
428 | goto err_free_input; | |
1da177e4 LT |
429 | } |
430 | ||
c0968f0e DT |
431 | error = acpi_button_add_fs(device); |
432 | if (error) | |
433 | goto err_free_input; | |
434 | ||
435 | error = acpi_button_install_notify_handlers(button); | |
436 | if (error) | |
437 | goto err_remove_fs; | |
438 | ||
439 | snprintf(button->phys, sizeof(button->phys), | |
440 | "%s/button/input0", acpi_device_hid(device)); | |
441 | ||
442 | input->name = acpi_device_name(device); | |
443 | input->phys = button->phys; | |
444 | input->id.bustype = BUS_HOST; | |
445 | input->id.product = button->type; | |
3b34e523 | 446 | input->dev.parent = &device->dev; |
b34a8030 | 447 | |
1da177e4 | 448 | switch (button->type) { |
c0968f0e | 449 | case ACPI_BUTTON_TYPE_POWER: |
1da177e4 | 450 | case ACPI_BUTTON_TYPE_POWERF: |
7b19ada2 | 451 | input->evbit[0] = BIT_MASK(EV_KEY); |
c0968f0e | 452 | set_bit(KEY_POWER, input->keybit); |
1da177e4 | 453 | break; |
c0968f0e DT |
454 | |
455 | case ACPI_BUTTON_TYPE_SLEEP: | |
1da177e4 | 456 | case ACPI_BUTTON_TYPE_SLEEPF: |
7b19ada2 | 457 | input->evbit[0] = BIT_MASK(EV_KEY); |
c0968f0e | 458 | set_bit(KEY_SLEEP, input->keybit); |
1da177e4 | 459 | break; |
c0968f0e DT |
460 | |
461 | case ACPI_BUTTON_TYPE_LID: | |
7b19ada2 | 462 | input->evbit[0] = BIT_MASK(EV_SW); |
c0968f0e | 463 | set_bit(SW_LID, input->swbit); |
1da177e4 LT |
464 | break; |
465 | } | |
466 | ||
c0968f0e DT |
467 | error = input_register_device(input); |
468 | if (error) | |
469 | goto err_remove_handlers; | |
23de5d9e AS |
470 | if (button->type == ACPI_BUTTON_TYPE_LID) |
471 | acpi_lid_send_state(button); | |
1da177e4 LT |
472 | |
473 | if (device->wakeup.flags.valid) { | |
474 | /* Button's GPE is run-wake GPE */ | |
4be44fcd LB |
475 | acpi_set_gpe_type(device->wakeup.gpe_device, |
476 | device->wakeup.gpe_number, | |
477 | ACPI_GPE_TYPE_WAKE_RUN); | |
478 | acpi_enable_gpe(device->wakeup.gpe_device, | |
0b7084ac | 479 | device->wakeup.gpe_number); |
1da177e4 LT |
480 | device->wakeup.state.enabled = 1; |
481 | } | |
482 | ||
4be44fcd LB |
483 | printk(KERN_INFO PREFIX "%s [%s]\n", |
484 | acpi_device_name(device), acpi_device_bid(device)); | |
1da177e4 | 485 | |
c0968f0e | 486 | return 0; |
1da177e4 | 487 | |
c0968f0e DT |
488 | err_remove_handlers: |
489 | acpi_button_remove_notify_handlers(button); | |
490 | err_remove_fs: | |
491 | acpi_button_remove_fs(device); | |
492 | err_free_input: | |
493 | input_free_device(input); | |
494 | err_free_button: | |
495 | kfree(button); | |
496 | return error; | |
1da177e4 LT |
497 | } |
498 | ||
4be44fcd | 499 | static int acpi_button_remove(struct acpi_device *device, int type) |
1da177e4 | 500 | { |
c0968f0e | 501 | struct acpi_button *button; |
1da177e4 LT |
502 | |
503 | if (!device || !acpi_driver_data(device)) | |
d550d98d | 504 | return -EINVAL; |
1da177e4 LT |
505 | |
506 | button = acpi_driver_data(device); | |
507 | ||
c0968f0e | 508 | acpi_button_remove_notify_handlers(button); |
4be44fcd | 509 | acpi_button_remove_fs(device); |
c0968f0e | 510 | input_unregister_device(button->input); |
1da177e4 LT |
511 | kfree(button); |
512 | ||
d550d98d | 513 | return 0; |
1da177e4 LT |
514 | } |
515 | ||
4be44fcd | 516 | static int __init acpi_button_init(void) |
1da177e4 | 517 | { |
c0968f0e | 518 | int result; |
1da177e4 | 519 | |
b34a8030 AS |
520 | acpi_button_dir = proc_mkdir(ACPI_BUTTON_CLASS, acpi_root_dir); |
521 | if (!acpi_button_dir) | |
d550d98d | 522 | return -ENODEV; |
1da177e4 LT |
523 | result = acpi_bus_register_driver(&acpi_button_driver); |
524 | if (result < 0) { | |
b34a8030 | 525 | remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir); |
d550d98d | 526 | return -ENODEV; |
1da177e4 LT |
527 | } |
528 | ||
d550d98d | 529 | return 0; |
1da177e4 LT |
530 | } |
531 | ||
4be44fcd | 532 | static void __exit acpi_button_exit(void) |
1da177e4 | 533 | { |
1da177e4 LT |
534 | acpi_bus_unregister_driver(&acpi_button_driver); |
535 | ||
4be44fcd | 536 | if (acpi_power_dir) |
b34a8030 AS |
537 | remove_proc_entry(ACPI_BUTTON_SUBCLASS_POWER, acpi_button_dir); |
538 | if (acpi_sleep_dir) | |
539 | remove_proc_entry(ACPI_BUTTON_SUBCLASS_SLEEP, acpi_button_dir); | |
540 | if (acpi_lid_dir) | |
541 | remove_proc_entry(ACPI_BUTTON_SUBCLASS_LID, acpi_button_dir); | |
542 | remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir); | |
1da177e4 LT |
543 | } |
544 | ||
1da177e4 LT |
545 | module_init(acpi_button_init); |
546 | module_exit(acpi_button_exit); |