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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); | |
23de5d9e | 81 | static int acpi_button_resume(struct acpi_device *device); |
b34a8030 AS |
82 | static int acpi_button_info_open_fs(struct inode *inode, struct file *file); |
83 | static int acpi_button_state_open_fs(struct inode *inode, struct file *file); | |
1da177e4 LT |
84 | |
85 | static struct acpi_driver acpi_button_driver = { | |
c2b6705b | 86 | .name = "button", |
4be44fcd | 87 | .class = ACPI_BUTTON_CLASS, |
1ba90e3a | 88 | .ids = button_device_ids, |
4be44fcd LB |
89 | .ops = { |
90 | .add = acpi_button_add, | |
23de5d9e | 91 | .resume = acpi_button_resume, |
4be44fcd | 92 | .remove = acpi_button_remove, |
c0968f0e | 93 | }, |
1da177e4 LT |
94 | }; |
95 | ||
96 | struct acpi_button { | |
4be44fcd | 97 | struct acpi_device *device; /* Fixed button kludge */ |
c0968f0e DT |
98 | unsigned int type; |
99 | struct input_dev *input; | |
100 | char phys[32]; /* for input device */ | |
4be44fcd | 101 | unsigned long pushed; |
1da177e4 LT |
102 | }; |
103 | ||
d7508032 | 104 | static const struct file_operations acpi_button_info_fops = { |
cf7acfab | 105 | .owner = THIS_MODULE, |
4be44fcd LB |
106 | .open = acpi_button_info_open_fs, |
107 | .read = seq_read, | |
108 | .llseek = seq_lseek, | |
109 | .release = single_release, | |
b34a8030 AS |
110 | }; |
111 | ||
d7508032 | 112 | static const struct file_operations acpi_button_state_fops = { |
cf7acfab | 113 | .owner = THIS_MODULE, |
4be44fcd LB |
114 | .open = acpi_button_state_open_fs, |
115 | .read = seq_read, | |
116 | .llseek = seq_lseek, | |
117 | .release = single_release, | |
b34a8030 | 118 | }; |
4be44fcd | 119 | |
b34a8030 AS |
120 | /* -------------------------------------------------------------------------- |
121 | FS Interface (/proc) | |
122 | -------------------------------------------------------------------------- */ | |
123 | ||
4be44fcd | 124 | static struct proc_dir_entry *acpi_button_dir; |
b34a8030 AS |
125 | |
126 | static int acpi_button_info_seq_show(struct seq_file *seq, void *offset) | |
127 | { | |
c0968f0e | 128 | struct acpi_button *button = seq->private; |
b34a8030 AS |
129 | |
130 | if (!button || !button->device) | |
d550d98d | 131 | return 0; |
b34a8030 | 132 | |
4be44fcd LB |
133 | seq_printf(seq, "type: %s\n", |
134 | acpi_device_name(button->device)); | |
b34a8030 | 135 | |
d550d98d | 136 | return 0; |
b34a8030 AS |
137 | } |
138 | ||
139 | static int acpi_button_info_open_fs(struct inode *inode, struct file *file) | |
140 | { | |
141 | return single_open(file, acpi_button_info_seq_show, PDE(inode)->data); | |
142 | } | |
4be44fcd | 143 | |
b34a8030 AS |
144 | static int acpi_button_state_seq_show(struct seq_file *seq, void *offset) |
145 | { | |
c0968f0e | 146 | struct acpi_button *button = seq->private; |
4be44fcd LB |
147 | acpi_status status; |
148 | unsigned long state; | |
b34a8030 | 149 | |
b34a8030 | 150 | if (!button || !button->device) |
d550d98d | 151 | return 0; |
b34a8030 | 152 | |
27b1d3e8 | 153 | status = acpi_evaluate_integer(button->device->handle, "_LID", NULL, &state); |
c0968f0e DT |
154 | seq_printf(seq, "state: %s\n", |
155 | ACPI_FAILURE(status) ? "unsupported" : | |
156 | (state ? "open" : "closed")); | |
d550d98d | 157 | return 0; |
b34a8030 AS |
158 | } |
159 | ||
160 | static int acpi_button_state_open_fs(struct inode *inode, struct file *file) | |
161 | { | |
162 | return single_open(file, acpi_button_state_seq_show, PDE(inode)->data); | |
163 | } | |
164 | ||
165 | static struct proc_dir_entry *acpi_power_dir; | |
166 | static struct proc_dir_entry *acpi_sleep_dir; | |
167 | static struct proc_dir_entry *acpi_lid_dir; | |
168 | ||
4be44fcd | 169 | static int acpi_button_add_fs(struct acpi_device *device) |
b34a8030 | 170 | { |
4be44fcd | 171 | struct proc_dir_entry *entry = NULL; |
c0968f0e | 172 | struct acpi_button *button; |
b34a8030 AS |
173 | |
174 | if (!device || !acpi_driver_data(device)) | |
d550d98d | 175 | return -EINVAL; |
b34a8030 AS |
176 | |
177 | button = acpi_driver_data(device); | |
178 | ||
179 | switch (button->type) { | |
180 | case ACPI_BUTTON_TYPE_POWER: | |
181 | case ACPI_BUTTON_TYPE_POWERF: | |
182 | if (!acpi_power_dir) | |
4be44fcd LB |
183 | acpi_power_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_POWER, |
184 | acpi_button_dir); | |
b34a8030 AS |
185 | entry = acpi_power_dir; |
186 | break; | |
187 | case ACPI_BUTTON_TYPE_SLEEP: | |
188 | case ACPI_BUTTON_TYPE_SLEEPF: | |
189 | if (!acpi_sleep_dir) | |
4be44fcd LB |
190 | acpi_sleep_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_SLEEP, |
191 | acpi_button_dir); | |
b34a8030 AS |
192 | entry = acpi_sleep_dir; |
193 | break; | |
194 | case ACPI_BUTTON_TYPE_LID: | |
195 | if (!acpi_lid_dir) | |
4be44fcd LB |
196 | acpi_lid_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_LID, |
197 | acpi_button_dir); | |
b34a8030 AS |
198 | entry = acpi_lid_dir; |
199 | break; | |
200 | } | |
201 | ||
202 | if (!entry) | |
d550d98d | 203 | return -ENODEV; |
b34a8030 AS |
204 | entry->owner = THIS_MODULE; |
205 | ||
206 | acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), entry); | |
207 | if (!acpi_device_dir(device)) | |
d550d98d | 208 | return -ENODEV; |
b34a8030 AS |
209 | acpi_device_dir(device)->owner = THIS_MODULE; |
210 | ||
211 | /* 'info' [R] */ | |
cf7acfab DL |
212 | entry = proc_create_data(ACPI_BUTTON_FILE_INFO, |
213 | S_IRUGO, acpi_device_dir(device), | |
214 | &acpi_button_info_fops, | |
215 | acpi_driver_data(device)); | |
b34a8030 | 216 | if (!entry) |
d550d98d | 217 | return -ENODEV; |
b34a8030 AS |
218 | |
219 | /* show lid state [R] */ | |
220 | if (button->type == ACPI_BUTTON_TYPE_LID) { | |
cf7acfab DL |
221 | entry = proc_create_data(ACPI_BUTTON_FILE_STATE, |
222 | S_IRUGO, acpi_device_dir(device), | |
223 | &acpi_button_state_fops, | |
224 | acpi_driver_data(device)); | |
b34a8030 | 225 | if (!entry) |
a6fc6720 | 226 | return -ENODEV; |
b34a8030 AS |
227 | } |
228 | ||
d550d98d | 229 | return 0; |
b34a8030 AS |
230 | } |
231 | ||
4be44fcd | 232 | static int acpi_button_remove_fs(struct acpi_device *device) |
b34a8030 | 233 | { |
c0968f0e | 234 | struct acpi_button *button = acpi_driver_data(device); |
b34a8030 | 235 | |
b34a8030 AS |
236 | if (acpi_device_dir(device)) { |
237 | if (button->type == ACPI_BUTTON_TYPE_LID) | |
238 | remove_proc_entry(ACPI_BUTTON_FILE_STATE, | |
4be44fcd | 239 | acpi_device_dir(device)); |
b34a8030 | 240 | remove_proc_entry(ACPI_BUTTON_FILE_INFO, |
4be44fcd | 241 | acpi_device_dir(device)); |
b34a8030 AS |
242 | |
243 | remove_proc_entry(acpi_device_bid(device), | |
4be44fcd | 244 | acpi_device_dir(device)->parent); |
b34a8030 AS |
245 | acpi_device_dir(device) = NULL; |
246 | } | |
247 | ||
d550d98d | 248 | return 0; |
b34a8030 AS |
249 | } |
250 | ||
1da177e4 LT |
251 | /* -------------------------------------------------------------------------- |
252 | Driver Interface | |
253 | -------------------------------------------------------------------------- */ | |
23de5d9e AS |
254 | static int acpi_lid_send_state(struct acpi_button *button) |
255 | { | |
256 | unsigned long state; | |
257 | acpi_status status; | |
258 | ||
259 | status = acpi_evaluate_integer(button->device->handle, "_LID", NULL, | |
260 | &state); | |
261 | if (ACPI_FAILURE(status)) | |
262 | return -ENODEV; | |
263 | /* input layer checks if event is redundant */ | |
264 | input_report_switch(button->input, SW_LID, !state); | |
265 | return 0; | |
266 | } | |
1da177e4 | 267 | |
4be44fcd | 268 | static void acpi_button_notify(acpi_handle handle, u32 event, void *data) |
1da177e4 | 269 | { |
c0968f0e DT |
270 | struct acpi_button *button = data; |
271 | struct input_dev *input; | |
1da177e4 LT |
272 | |
273 | if (!button || !button->device) | |
d550d98d | 274 | return; |
1da177e4 LT |
275 | |
276 | switch (event) { | |
277 | case ACPI_BUTTON_NOTIFY_STATUS: | |
c0968f0e | 278 | input = button->input; |
c0968f0e | 279 | if (button->type == ACPI_BUTTON_TYPE_LID) { |
23de5d9e | 280 | acpi_lid_send_state(button); |
c0968f0e DT |
281 | } else { |
282 | int keycode = test_bit(KEY_SLEEP, input->keybit) ? | |
283 | KEY_SLEEP : KEY_POWER; | |
284 | ||
285 | input_report_key(input, keycode, 1); | |
286 | input_sync(input); | |
287 | input_report_key(input, keycode, 0); | |
288 | } | |
289 | input_sync(input); | |
290 | ||
14e04fb3 | 291 | acpi_bus_generate_proc_event(button->device, event, |
4be44fcd | 292 | ++button->pushed); |
1da177e4 LT |
293 | break; |
294 | default: | |
295 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, | |
4be44fcd | 296 | "Unsupported event [0x%x]\n", event)); |
1da177e4 LT |
297 | break; |
298 | } | |
299 | ||
d550d98d | 300 | return; |
1da177e4 LT |
301 | } |
302 | ||
4be44fcd | 303 | static acpi_status acpi_button_notify_fixed(void *data) |
1da177e4 | 304 | { |
c0968f0e | 305 | struct acpi_button *button = data; |
1da177e4 | 306 | |
b34a8030 | 307 | if (!button) |
d550d98d | 308 | return AE_BAD_PARAMETER; |
1da177e4 | 309 | |
27b1d3e8 | 310 | acpi_button_notify(button->device->handle, ACPI_BUTTON_NOTIFY_STATUS, button); |
1da177e4 | 311 | |
d550d98d | 312 | return AE_OK; |
1da177e4 LT |
313 | } |
314 | ||
c0968f0e | 315 | static int acpi_button_install_notify_handlers(struct acpi_button *button) |
1da177e4 | 316 | { |
c0968f0e | 317 | acpi_status status; |
1da177e4 | 318 | |
c0968f0e DT |
319 | switch (button->type) { |
320 | case ACPI_BUTTON_TYPE_POWERF: | |
321 | status = | |
322 | acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, | |
323 | acpi_button_notify_fixed, | |
324 | button); | |
325 | break; | |
326 | case ACPI_BUTTON_TYPE_SLEEPF: | |
327 | status = | |
328 | acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, | |
329 | acpi_button_notify_fixed, | |
330 | button); | |
331 | break; | |
332 | default: | |
333 | status = acpi_install_notify_handler(button->device->handle, | |
334 | ACPI_DEVICE_NOTIFY, | |
335 | acpi_button_notify, | |
336 | button); | |
337 | break; | |
338 | } | |
339 | ||
340 | return ACPI_FAILURE(status) ? -ENODEV : 0; | |
341 | } | |
342 | ||
23de5d9e AS |
343 | static int acpi_button_resume(struct acpi_device *device) |
344 | { | |
345 | struct acpi_button *button; | |
346 | if (!device) | |
347 | return -EINVAL; | |
348 | button = acpi_driver_data(device); | |
349 | if (button && button->type == ACPI_BUTTON_TYPE_LID) | |
350 | return acpi_lid_send_state(button); | |
351 | return 0; | |
352 | } | |
353 | ||
c0968f0e DT |
354 | static void acpi_button_remove_notify_handlers(struct acpi_button *button) |
355 | { | |
356 | switch (button->type) { | |
357 | case ACPI_BUTTON_TYPE_POWERF: | |
358 | acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, | |
359 | acpi_button_notify_fixed); | |
360 | break; | |
361 | case ACPI_BUTTON_TYPE_SLEEPF: | |
362 | acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, | |
363 | acpi_button_notify_fixed); | |
364 | break; | |
365 | default: | |
366 | acpi_remove_notify_handler(button->device->handle, | |
367 | ACPI_DEVICE_NOTIFY, | |
368 | acpi_button_notify); | |
369 | break; | |
370 | } | |
371 | } | |
372 | ||
373 | static int acpi_button_add(struct acpi_device *device) | |
374 | { | |
375 | int error; | |
376 | struct acpi_button *button; | |
377 | struct input_dev *input; | |
1da177e4 LT |
378 | |
379 | if (!device) | |
d550d98d | 380 | return -EINVAL; |
1da177e4 | 381 | |
c0968f0e | 382 | button = kzalloc(sizeof(struct acpi_button), GFP_KERNEL); |
1da177e4 | 383 | if (!button) |
d550d98d | 384 | return -ENOMEM; |
1da177e4 LT |
385 | |
386 | button->device = device; | |
1da177e4 LT |
387 | acpi_driver_data(device) = button; |
388 | ||
c0968f0e DT |
389 | button->input = input = input_allocate_device(); |
390 | if (!input) { | |
391 | error = -ENOMEM; | |
392 | goto err_free_button; | |
393 | } | |
394 | ||
1da177e4 LT |
395 | /* |
396 | * Determine the button type (via hid), as fixed-feature buttons | |
397 | * need to be handled a bit differently than generic-space. | |
398 | */ | |
399 | if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_POWER)) { | |
400 | button->type = ACPI_BUTTON_TYPE_POWER; | |
4be44fcd LB |
401 | strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_POWER); |
402 | sprintf(acpi_device_class(device), "%s/%s", | |
1da177e4 | 403 | ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_POWER); |
4be44fcd | 404 | } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_POWERF)) { |
1da177e4 LT |
405 | button->type = ACPI_BUTTON_TYPE_POWERF; |
406 | strcpy(acpi_device_name(device), | |
4be44fcd LB |
407 | ACPI_BUTTON_DEVICE_NAME_POWERF); |
408 | sprintf(acpi_device_class(device), "%s/%s", | |
1da177e4 | 409 | ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_POWER); |
4be44fcd | 410 | } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_SLEEP)) { |
1da177e4 | 411 | button->type = ACPI_BUTTON_TYPE_SLEEP; |
4be44fcd LB |
412 | strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_SLEEP); |
413 | sprintf(acpi_device_class(device), "%s/%s", | |
1da177e4 | 414 | ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_SLEEP); |
4be44fcd | 415 | } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_SLEEPF)) { |
1da177e4 LT |
416 | button->type = ACPI_BUTTON_TYPE_SLEEPF; |
417 | strcpy(acpi_device_name(device), | |
4be44fcd LB |
418 | ACPI_BUTTON_DEVICE_NAME_SLEEPF); |
419 | sprintf(acpi_device_class(device), "%s/%s", | |
1da177e4 | 420 | ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_SLEEP); |
4be44fcd | 421 | } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_LID)) { |
1da177e4 | 422 | button->type = ACPI_BUTTON_TYPE_LID; |
4be44fcd LB |
423 | strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_LID); |
424 | sprintf(acpi_device_class(device), "%s/%s", | |
1da177e4 | 425 | ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_LID); |
4be44fcd | 426 | } else { |
6468463a LB |
427 | printk(KERN_ERR PREFIX "Unsupported hid [%s]\n", |
428 | acpi_device_hid(device)); | |
c0968f0e DT |
429 | error = -ENODEV; |
430 | goto err_free_input; | |
1da177e4 LT |
431 | } |
432 | ||
c0968f0e DT |
433 | error = acpi_button_add_fs(device); |
434 | if (error) | |
435 | goto err_free_input; | |
436 | ||
437 | error = acpi_button_install_notify_handlers(button); | |
438 | if (error) | |
439 | goto err_remove_fs; | |
440 | ||
441 | snprintf(button->phys, sizeof(button->phys), | |
442 | "%s/button/input0", acpi_device_hid(device)); | |
443 | ||
444 | input->name = acpi_device_name(device); | |
445 | input->phys = button->phys; | |
446 | input->id.bustype = BUS_HOST; | |
447 | input->id.product = button->type; | |
3b34e523 | 448 | input->dev.parent = &device->dev; |
b34a8030 | 449 | |
1da177e4 | 450 | switch (button->type) { |
c0968f0e | 451 | case ACPI_BUTTON_TYPE_POWER: |
1da177e4 | 452 | case ACPI_BUTTON_TYPE_POWERF: |
7b19ada2 | 453 | input->evbit[0] = BIT_MASK(EV_KEY); |
c0968f0e | 454 | set_bit(KEY_POWER, input->keybit); |
1da177e4 | 455 | break; |
c0968f0e DT |
456 | |
457 | case ACPI_BUTTON_TYPE_SLEEP: | |
1da177e4 | 458 | case ACPI_BUTTON_TYPE_SLEEPF: |
7b19ada2 | 459 | input->evbit[0] = BIT_MASK(EV_KEY); |
c0968f0e | 460 | set_bit(KEY_SLEEP, input->keybit); |
1da177e4 | 461 | break; |
c0968f0e DT |
462 | |
463 | case ACPI_BUTTON_TYPE_LID: | |
7b19ada2 | 464 | input->evbit[0] = BIT_MASK(EV_SW); |
c0968f0e | 465 | set_bit(SW_LID, input->swbit); |
1da177e4 LT |
466 | break; |
467 | } | |
468 | ||
c0968f0e DT |
469 | error = input_register_device(input); |
470 | if (error) | |
471 | goto err_remove_handlers; | |
23de5d9e AS |
472 | if (button->type == ACPI_BUTTON_TYPE_LID) |
473 | acpi_lid_send_state(button); | |
1da177e4 LT |
474 | |
475 | if (device->wakeup.flags.valid) { | |
476 | /* Button's GPE is run-wake GPE */ | |
4be44fcd LB |
477 | acpi_set_gpe_type(device->wakeup.gpe_device, |
478 | device->wakeup.gpe_number, | |
479 | ACPI_GPE_TYPE_WAKE_RUN); | |
480 | acpi_enable_gpe(device->wakeup.gpe_device, | |
481 | device->wakeup.gpe_number, ACPI_NOT_ISR); | |
1da177e4 LT |
482 | device->wakeup.state.enabled = 1; |
483 | } | |
484 | ||
4be44fcd LB |
485 | printk(KERN_INFO PREFIX "%s [%s]\n", |
486 | acpi_device_name(device), acpi_device_bid(device)); | |
1da177e4 | 487 | |
c0968f0e | 488 | return 0; |
1da177e4 | 489 | |
c0968f0e DT |
490 | err_remove_handlers: |
491 | acpi_button_remove_notify_handlers(button); | |
492 | err_remove_fs: | |
493 | acpi_button_remove_fs(device); | |
494 | err_free_input: | |
495 | input_free_device(input); | |
496 | err_free_button: | |
497 | kfree(button); | |
498 | return error; | |
1da177e4 LT |
499 | } |
500 | ||
4be44fcd | 501 | static int acpi_button_remove(struct acpi_device *device, int type) |
1da177e4 | 502 | { |
c0968f0e | 503 | struct acpi_button *button; |
1da177e4 LT |
504 | |
505 | if (!device || !acpi_driver_data(device)) | |
d550d98d | 506 | return -EINVAL; |
1da177e4 LT |
507 | |
508 | button = acpi_driver_data(device); | |
509 | ||
c0968f0e | 510 | acpi_button_remove_notify_handlers(button); |
4be44fcd | 511 | acpi_button_remove_fs(device); |
c0968f0e | 512 | input_unregister_device(button->input); |
1da177e4 LT |
513 | kfree(button); |
514 | ||
d550d98d | 515 | return 0; |
1da177e4 LT |
516 | } |
517 | ||
4be44fcd | 518 | static int __init acpi_button_init(void) |
1da177e4 | 519 | { |
c0968f0e | 520 | int result; |
1da177e4 | 521 | |
b34a8030 AS |
522 | acpi_button_dir = proc_mkdir(ACPI_BUTTON_CLASS, acpi_root_dir); |
523 | if (!acpi_button_dir) | |
d550d98d | 524 | return -ENODEV; |
b34a8030 | 525 | acpi_button_dir->owner = THIS_MODULE; |
1da177e4 LT |
526 | result = acpi_bus_register_driver(&acpi_button_driver); |
527 | if (result < 0) { | |
b34a8030 | 528 | remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir); |
d550d98d | 529 | return -ENODEV; |
1da177e4 LT |
530 | } |
531 | ||
d550d98d | 532 | return 0; |
1da177e4 LT |
533 | } |
534 | ||
4be44fcd | 535 | static void __exit acpi_button_exit(void) |
1da177e4 | 536 | { |
1da177e4 LT |
537 | acpi_bus_unregister_driver(&acpi_button_driver); |
538 | ||
4be44fcd | 539 | if (acpi_power_dir) |
b34a8030 AS |
540 | remove_proc_entry(ACPI_BUTTON_SUBCLASS_POWER, acpi_button_dir); |
541 | if (acpi_sleep_dir) | |
542 | remove_proc_entry(ACPI_BUTTON_SUBCLASS_SLEEP, acpi_button_dir); | |
543 | if (acpi_lid_dir) | |
544 | remove_proc_entry(ACPI_BUTTON_SUBCLASS_LID, acpi_button_dir); | |
545 | remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir); | |
1da177e4 LT |
546 | } |
547 | ||
1da177e4 LT |
548 | module_init(acpi_button_init); |
549 | module_exit(acpi_button_exit); |