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62ec30d4 MG |
1 | /* |
2 | * HP WMI hotkeys | |
3 | * | |
4 | * Copyright (C) 2008 Red Hat <mjg@redhat.com> | |
c0b9c649 | 5 | * Copyright (C) 2010, 2011 Anssi Hannula <anssi.hannula@iki.fi> |
62ec30d4 MG |
6 | * |
7 | * Portions based on wistron_btns.c: | |
8 | * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz> | |
9 | * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org> | |
10 | * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru> | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
25 | */ | |
26 | ||
b5a4223c JP |
27 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
28 | ||
62ec30d4 MG |
29 | #include <linux/kernel.h> |
30 | #include <linux/module.h> | |
31 | #include <linux/init.h> | |
5a0e3ad6 | 32 | #include <linux/slab.h> |
62ec30d4 MG |
33 | #include <linux/types.h> |
34 | #include <linux/input.h> | |
4d291ed7 | 35 | #include <linux/input/sparse-keymap.h> |
62ec30d4 MG |
36 | #include <linux/platform_device.h> |
37 | #include <linux/acpi.h> | |
38 | #include <linux/rfkill.h> | |
39 | #include <linux/string.h> | |
40 | ||
41 | MODULE_AUTHOR("Matthew Garrett <mjg59@srcf.ucam.org>"); | |
42 | MODULE_DESCRIPTION("HP laptop WMI hotkeys driver"); | |
43 | MODULE_LICENSE("GPL"); | |
44 | ||
45 | MODULE_ALIAS("wmi:95F24279-4D7B-4334-9387-ACCDC67EF61C"); | |
46 | MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4"); | |
47 | ||
48 | #define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C" | |
49 | #define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4" | |
50 | ||
51 | #define HPWMI_DISPLAY_QUERY 0x1 | |
52 | #define HPWMI_HDDTEMP_QUERY 0x2 | |
53 | #define HPWMI_ALS_QUERY 0x3 | |
871043bc | 54 | #define HPWMI_HARDWARE_QUERY 0x4 |
62ec30d4 | 55 | #define HPWMI_WIRELESS_QUERY 0x5 |
a8823aef | 56 | #define HPWMI_HOTKEY_QUERY 0xc |
c0b9c649 | 57 | #define HPWMI_WIRELESS2_QUERY 0x1b |
62ec30d4 | 58 | |
e5fbba85 AJ |
59 | enum hp_wmi_radio { |
60 | HPWMI_WIFI = 0, | |
61 | HPWMI_BLUETOOTH = 1, | |
62 | HPWMI_WWAN = 2, | |
4fca7ce3 | 63 | HPWMI_GPS = 3, |
e5fbba85 AJ |
64 | }; |
65 | ||
751ae808 TR |
66 | enum hp_wmi_event_ids { |
67 | HPWMI_DOCK_EVENT = 1, | |
1bbdfd59 TR |
68 | HPWMI_PARK_HDD = 2, |
69 | HPWMI_SMART_ADAPTER = 3, | |
751ae808 TR |
70 | HPWMI_BEZEL_BUTTON = 4, |
71 | HPWMI_WIRELESS = 5, | |
1bbdfd59 TR |
72 | HPWMI_CPU_BATTERY_THROTTLE = 6, |
73 | HPWMI_LOCK_SWITCH = 7, | |
d9e290a0 AH |
74 | HPWMI_LID_SWITCH = 8, |
75 | HPWMI_SCREEN_ROTATION = 9, | |
76 | HPWMI_COOLSENSE_SYSTEM_MOBILE = 0x0A, | |
77 | HPWMI_COOLSENSE_SYSTEM_HOT = 0x0B, | |
78 | HPWMI_PROXIMITY_SENSOR = 0x0C, | |
79 | HPWMI_BACKLIT_KB_BRIGHTNESS = 0x0D, | |
80 | HPWMI_PEAKSHIFT_PERIOD = 0x0F, | |
81 | HPWMI_BATTERY_CHARGE_PERIOD = 0x10, | |
751ae808 TR |
82 | }; |
83 | ||
62ec30d4 MG |
84 | struct bios_args { |
85 | u32 signature; | |
86 | u32 command; | |
87 | u32 commandtype; | |
88 | u32 datasize; | |
a8ec105c | 89 | u32 data; |
62ec30d4 MG |
90 | }; |
91 | ||
92 | struct bios_return { | |
93 | u32 sigpass; | |
94 | u32 return_code; | |
62ec30d4 MG |
95 | }; |
96 | ||
9af0e0fb AH |
97 | enum hp_return_value { |
98 | HPWMI_RET_WRONG_SIGNATURE = 0x02, | |
99 | HPWMI_RET_UNKNOWN_COMMAND = 0x03, | |
100 | HPWMI_RET_UNKNOWN_CMDTYPE = 0x04, | |
101 | HPWMI_RET_INVALID_PARAMETERS = 0x05, | |
102 | }; | |
103 | ||
c0b9c649 AH |
104 | enum hp_wireless2_bits { |
105 | HPWMI_POWER_STATE = 0x01, | |
106 | HPWMI_POWER_SOFT = 0x02, | |
107 | HPWMI_POWER_BIOS = 0x04, | |
108 | HPWMI_POWER_HARD = 0x08, | |
109 | }; | |
110 | ||
111 | #define IS_HWBLOCKED(x) ((x & (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) \ | |
112 | != (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) | |
113 | #define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT) | |
114 | ||
115 | struct bios_rfkill2_device_state { | |
116 | u8 radio_type; | |
117 | u8 bus_type; | |
118 | u16 vendor_id; | |
119 | u16 product_id; | |
120 | u16 subsys_vendor_id; | |
121 | u16 subsys_product_id; | |
122 | u8 rfkill_id; | |
123 | u8 power; | |
124 | u8 unknown[4]; | |
125 | }; | |
126 | ||
127 | /* 7 devices fit into the 128 byte buffer */ | |
128 | #define HPWMI_MAX_RFKILL2_DEVICES 7 | |
129 | ||
130 | struct bios_rfkill2_state { | |
131 | u8 unknown[7]; | |
132 | u8 count; | |
133 | u8 pad[8]; | |
134 | struct bios_rfkill2_device_state device[HPWMI_MAX_RFKILL2_DEVICES]; | |
135 | }; | |
136 | ||
4d291ed7 DT |
137 | static const struct key_entry hp_wmi_keymap[] = { |
138 | { KE_KEY, 0x02, { KEY_BRIGHTNESSUP } }, | |
139 | { KE_KEY, 0x03, { KEY_BRIGHTNESSDOWN } }, | |
140 | { KE_KEY, 0x20e6, { KEY_PROG1 } }, | |
141 | { KE_KEY, 0x20e8, { KEY_MEDIA } }, | |
142 | { KE_KEY, 0x2142, { KEY_MEDIA } }, | |
143 | { KE_KEY, 0x213b, { KEY_INFO } }, | |
144 | { KE_KEY, 0x2169, { KEY_DIRECTION } }, | |
145 | { KE_KEY, 0x231b, { KEY_HELP } }, | |
146 | { KE_END, 0 } | |
62ec30d4 MG |
147 | }; |
148 | ||
149 | static struct input_dev *hp_wmi_input_dev; | |
150 | static struct platform_device *hp_wmi_platform_dev; | |
151 | ||
152 | static struct rfkill *wifi_rfkill; | |
153 | static struct rfkill *bluetooth_rfkill; | |
154 | static struct rfkill *wwan_rfkill; | |
4fca7ce3 | 155 | static struct rfkill *gps_rfkill; |
62ec30d4 | 156 | |
c0b9c649 AH |
157 | struct rfkill2_device { |
158 | u8 id; | |
159 | int num; | |
160 | struct rfkill *rfkill; | |
161 | }; | |
162 | ||
163 | static int rfkill2_count; | |
164 | static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES]; | |
165 | ||
6d96e00c TR |
166 | /* |
167 | * hp_wmi_perform_query | |
168 | * | |
169 | * query: The commandtype -> What should be queried | |
170 | * write: The command -> 0 read, 1 write, 3 ODM specific | |
171 | * buffer: Buffer used as input and/or output | |
c3021ea1 AH |
172 | * insize: Size of input buffer |
173 | * outsize: Size of output buffer | |
6d96e00c TR |
174 | * |
175 | * returns zero on success | |
176 | * an HP WMI query specific error code (which is positive) | |
177 | * -EINVAL if the query was not successful at all | |
178 | * -EINVAL if the output buffer size exceeds buffersize | |
179 | * | |
180 | * Note: The buffersize must at least be the maximum of the input and output | |
181 | * size. E.g. Battery info query (0x7) is defined to have 1 byte input | |
182 | * and 128 byte output. The caller would do: | |
183 | * buffer = kzalloc(128, GFP_KERNEL); | |
c3021ea1 | 184 | * ret = hp_wmi_perform_query(0x7, 0, buffer, 1, 128) |
6d96e00c | 185 | */ |
c3021ea1 AH |
186 | static int hp_wmi_perform_query(int query, int write, void *buffer, |
187 | int insize, int outsize) | |
62ec30d4 | 188 | { |
c3021ea1 AH |
189 | struct bios_return *bios_return; |
190 | int actual_outsize; | |
62ec30d4 MG |
191 | union acpi_object *obj; |
192 | struct bios_args args = { | |
193 | .signature = 0x55434553, | |
194 | .command = write ? 0x2 : 0x1, | |
195 | .commandtype = query, | |
c3021ea1 AH |
196 | .datasize = insize, |
197 | .data = 0, | |
62ec30d4 MG |
198 | }; |
199 | struct acpi_buffer input = { sizeof(struct bios_args), &args }; | |
200 | struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; | |
0401846c | 201 | u32 rc; |
62ec30d4 | 202 | |
c3021ea1 AH |
203 | if (WARN_ON(insize > sizeof(args.data))) |
204 | return -EINVAL; | |
205 | memcpy(&args.data, buffer, insize); | |
206 | ||
25bb067a | 207 | wmi_evaluate_method(HPWMI_BIOS_GUID, 0, 0x3, &input, &output); |
62ec30d4 MG |
208 | |
209 | obj = output.pointer; | |
210 | ||
44ef00e6 | 211 | if (!obj) |
62ec30d4 | 212 | return -EINVAL; |
44ef00e6 TR |
213 | else if (obj->type != ACPI_TYPE_BUFFER) { |
214 | kfree(obj); | |
215 | return -EINVAL; | |
216 | } | |
62ec30d4 | 217 | |
c3021ea1 | 218 | bios_return = (struct bios_return *)obj->buffer.pointer; |
0401846c | 219 | rc = bios_return->return_code; |
6d96e00c | 220 | |
0401846c ED |
221 | if (rc) { |
222 | if (rc != HPWMI_RET_UNKNOWN_CMDTYPE) | |
223 | pr_warn("query 0x%x returned error 0x%x\n", query, rc); | |
9af0e0fb | 224 | kfree(obj); |
0401846c | 225 | return rc; |
9af0e0fb AH |
226 | } |
227 | ||
c3021ea1 AH |
228 | if (!outsize) { |
229 | /* ignore output data */ | |
230 | kfree(obj); | |
231 | return 0; | |
232 | } | |
53c96dfd | 233 | |
c3021ea1 AH |
234 | actual_outsize = min(outsize, (int)(obj->buffer.length - sizeof(*bios_return))); |
235 | memcpy(buffer, obj->buffer.pointer + sizeof(*bios_return), actual_outsize); | |
236 | memset(buffer + actual_outsize, 0, outsize - actual_outsize); | |
53c96dfd | 237 | kfree(obj); |
6d96e00c | 238 | return 0; |
62ec30d4 MG |
239 | } |
240 | ||
241 | static int hp_wmi_display_state(void) | |
242 | { | |
a8ec105c MG |
243 | int state = 0; |
244 | int ret = hp_wmi_perform_query(HPWMI_DISPLAY_QUERY, 0, &state, | |
c3021ea1 | 245 | sizeof(state), sizeof(state)); |
6d96e00c TR |
246 | if (ret) |
247 | return -EINVAL; | |
248 | return state; | |
62ec30d4 MG |
249 | } |
250 | ||
251 | static int hp_wmi_hddtemp_state(void) | |
252 | { | |
a8ec105c MG |
253 | int state = 0; |
254 | int ret = hp_wmi_perform_query(HPWMI_HDDTEMP_QUERY, 0, &state, | |
c3021ea1 | 255 | sizeof(state), sizeof(state)); |
6d96e00c TR |
256 | if (ret) |
257 | return -EINVAL; | |
258 | return state; | |
62ec30d4 MG |
259 | } |
260 | ||
261 | static int hp_wmi_als_state(void) | |
262 | { | |
a8ec105c MG |
263 | int state = 0; |
264 | int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 0, &state, | |
c3021ea1 | 265 | sizeof(state), sizeof(state)); |
6d96e00c TR |
266 | if (ret) |
267 | return -EINVAL; | |
268 | return state; | |
62ec30d4 MG |
269 | } |
270 | ||
271 | static int hp_wmi_dock_state(void) | |
272 | { | |
a8ec105c MG |
273 | int state = 0; |
274 | int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state, | |
c3021ea1 | 275 | sizeof(state), sizeof(state)); |
62ec30d4 | 276 | |
6d96e00c TR |
277 | if (ret) |
278 | return -EINVAL; | |
871043bc | 279 | |
6d96e00c | 280 | return state & 0x1; |
62ec30d4 MG |
281 | } |
282 | ||
871043bc | 283 | static int hp_wmi_tablet_state(void) |
62ec30d4 | 284 | { |
a8ec105c MG |
285 | int state = 0; |
286 | int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state, | |
c3021ea1 | 287 | sizeof(state), sizeof(state)); |
6d96e00c | 288 | if (ret) |
871043bc MG |
289 | return ret; |
290 | ||
6d96e00c | 291 | return (state & 0x4) ? 1 : 0; |
62ec30d4 MG |
292 | } |
293 | ||
19d337df | 294 | static int hp_wmi_set_block(void *data, bool blocked) |
62ec30d4 | 295 | { |
e5fbba85 AJ |
296 | enum hp_wmi_radio r = (enum hp_wmi_radio) data; |
297 | int query = BIT(r + 8) | ((!blocked) << r); | |
6d96e00c | 298 | int ret; |
62ec30d4 | 299 | |
6d96e00c | 300 | ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, |
c3021ea1 | 301 | &query, sizeof(query), 0); |
6d96e00c TR |
302 | if (ret) |
303 | return -EINVAL; | |
304 | return 0; | |
62ec30d4 MG |
305 | } |
306 | ||
19d337df JB |
307 | static const struct rfkill_ops hp_wmi_rfkill_ops = { |
308 | .set_block = hp_wmi_set_block, | |
309 | }; | |
62ec30d4 | 310 | |
e5fbba85 | 311 | static bool hp_wmi_get_sw_state(enum hp_wmi_radio r) |
62ec30d4 | 312 | { |
a8ec105c | 313 | int wireless = 0; |
6d96e00c TR |
314 | int mask; |
315 | hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, | |
c3021ea1 AH |
316 | &wireless, sizeof(wireless), |
317 | sizeof(wireless)); | |
6d96e00c TR |
318 | /* TBD: Pass error */ |
319 | ||
320 | mask = 0x200 << (r * 8); | |
62ec30d4 | 321 | |
e5fbba85 | 322 | if (wireless & mask) |
19d337df | 323 | return false; |
62ec30d4 | 324 | else |
19d337df | 325 | return true; |
62ec30d4 MG |
326 | } |
327 | ||
e5fbba85 | 328 | static bool hp_wmi_get_hw_state(enum hp_wmi_radio r) |
62ec30d4 | 329 | { |
a8ec105c | 330 | int wireless = 0; |
6d96e00c TR |
331 | int mask; |
332 | hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, | |
c3021ea1 AH |
333 | &wireless, sizeof(wireless), |
334 | sizeof(wireless)); | |
6d96e00c TR |
335 | /* TBD: Pass error */ |
336 | ||
337 | mask = 0x800 << (r * 8); | |
62ec30d4 | 338 | |
e5fbba85 | 339 | if (wireless & mask) |
19d337df | 340 | return false; |
62ec30d4 | 341 | else |
19d337df | 342 | return true; |
62ec30d4 MG |
343 | } |
344 | ||
c0b9c649 AH |
345 | static int hp_wmi_rfkill2_set_block(void *data, bool blocked) |
346 | { | |
347 | int rfkill_id = (int)(long)data; | |
348 | char buffer[4] = { 0x01, 0x00, rfkill_id, !blocked }; | |
349 | ||
350 | if (hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 1, | |
351 | buffer, sizeof(buffer), 0)) | |
352 | return -EINVAL; | |
353 | return 0; | |
354 | } | |
355 | ||
356 | static const struct rfkill_ops hp_wmi_rfkill2_ops = { | |
357 | .set_block = hp_wmi_rfkill2_set_block, | |
358 | }; | |
359 | ||
360 | static int hp_wmi_rfkill2_refresh(void) | |
361 | { | |
362 | int err, i; | |
363 | struct bios_rfkill2_state state; | |
364 | ||
365 | err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state, | |
366 | 0, sizeof(state)); | |
367 | if (err) | |
368 | return err; | |
369 | ||
370 | for (i = 0; i < rfkill2_count; i++) { | |
371 | int num = rfkill2[i].num; | |
372 | struct bios_rfkill2_device_state *devstate; | |
373 | devstate = &state.device[num]; | |
374 | ||
375 | if (num >= state.count || | |
376 | devstate->rfkill_id != rfkill2[i].id) { | |
b5a4223c | 377 | pr_warn("power configuration of the wireless devices unexpectedly changed\n"); |
c0b9c649 AH |
378 | continue; |
379 | } | |
380 | ||
381 | rfkill_set_states(rfkill2[i].rfkill, | |
382 | IS_SWBLOCKED(devstate->power), | |
383 | IS_HWBLOCKED(devstate->power)); | |
384 | } | |
385 | ||
386 | return 0; | |
387 | } | |
388 | ||
62ec30d4 MG |
389 | static ssize_t show_display(struct device *dev, struct device_attribute *attr, |
390 | char *buf) | |
391 | { | |
392 | int value = hp_wmi_display_state(); | |
393 | if (value < 0) | |
394 | return -EINVAL; | |
395 | return sprintf(buf, "%d\n", value); | |
396 | } | |
397 | ||
398 | static ssize_t show_hddtemp(struct device *dev, struct device_attribute *attr, | |
399 | char *buf) | |
400 | { | |
401 | int value = hp_wmi_hddtemp_state(); | |
402 | if (value < 0) | |
403 | return -EINVAL; | |
404 | return sprintf(buf, "%d\n", value); | |
405 | } | |
406 | ||
407 | static ssize_t show_als(struct device *dev, struct device_attribute *attr, | |
408 | char *buf) | |
409 | { | |
410 | int value = hp_wmi_als_state(); | |
411 | if (value < 0) | |
412 | return -EINVAL; | |
413 | return sprintf(buf, "%d\n", value); | |
414 | } | |
415 | ||
416 | static ssize_t show_dock(struct device *dev, struct device_attribute *attr, | |
417 | char *buf) | |
418 | { | |
419 | int value = hp_wmi_dock_state(); | |
420 | if (value < 0) | |
421 | return -EINVAL; | |
422 | return sprintf(buf, "%d\n", value); | |
423 | } | |
424 | ||
871043bc MG |
425 | static ssize_t show_tablet(struct device *dev, struct device_attribute *attr, |
426 | char *buf) | |
427 | { | |
428 | int value = hp_wmi_tablet_state(); | |
429 | if (value < 0) | |
430 | return -EINVAL; | |
431 | return sprintf(buf, "%d\n", value); | |
432 | } | |
433 | ||
62ec30d4 MG |
434 | static ssize_t set_als(struct device *dev, struct device_attribute *attr, |
435 | const char *buf, size_t count) | |
436 | { | |
437 | u32 tmp = simple_strtoul(buf, NULL, 10); | |
a8ec105c | 438 | int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 1, &tmp, |
c3021ea1 | 439 | sizeof(tmp), sizeof(tmp)); |
6d96e00c TR |
440 | if (ret) |
441 | return -EINVAL; | |
442 | ||
62ec30d4 MG |
443 | return count; |
444 | } | |
445 | ||
446 | static DEVICE_ATTR(display, S_IRUGO, show_display, NULL); | |
447 | static DEVICE_ATTR(hddtemp, S_IRUGO, show_hddtemp, NULL); | |
448 | static DEVICE_ATTR(als, S_IRUGO | S_IWUSR, show_als, set_als); | |
449 | static DEVICE_ATTR(dock, S_IRUGO, show_dock, NULL); | |
871043bc | 450 | static DEVICE_ATTR(tablet, S_IRUGO, show_tablet, NULL); |
62ec30d4 | 451 | |
88429a10 | 452 | static void hp_wmi_notify(u32 value, void *context) |
62ec30d4 MG |
453 | { |
454 | struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; | |
62ec30d4 | 455 | union acpi_object *obj; |
8dda6b04 | 456 | u32 event_id, event_data; |
a8ec105c | 457 | int key_code = 0, ret; |
8dda6b04 | 458 | u32 *location; |
fda11e61 | 459 | acpi_status status; |
62ec30d4 | 460 | |
fda11e61 LB |
461 | status = wmi_get_event_data(value, &response); |
462 | if (status != AE_OK) { | |
b5a4223c | 463 | pr_info("bad event status 0x%x\n", status); |
fda11e61 LB |
464 | return; |
465 | } | |
62ec30d4 MG |
466 | |
467 | obj = (union acpi_object *)response.pointer; | |
468 | ||
c4775062 TR |
469 | if (!obj) |
470 | return; | |
471 | if (obj->type != ACPI_TYPE_BUFFER) { | |
b5a4223c | 472 | pr_info("Unknown response received %d\n", obj->type); |
44ef00e6 | 473 | kfree(obj); |
e5fbba85 AJ |
474 | return; |
475 | } | |
476 | ||
8dda6b04 TR |
477 | /* |
478 | * Depending on ACPI version the concatenation of id and event data | |
479 | * inside _WED function will result in a 8 or 16 byte buffer. | |
480 | */ | |
481 | location = (u32 *)obj->buffer.pointer; | |
482 | if (obj->buffer.length == 8) { | |
483 | event_id = *location; | |
484 | event_data = *(location + 1); | |
485 | } else if (obj->buffer.length == 16) { | |
486 | event_id = *location; | |
487 | event_data = *(location + 2); | |
488 | } else { | |
b5a4223c | 489 | pr_info("Unknown buffer length %d\n", obj->buffer.length); |
8dda6b04 TR |
490 | kfree(obj); |
491 | return; | |
492 | } | |
44ef00e6 | 493 | kfree(obj); |
8dda6b04 TR |
494 | |
495 | switch (event_id) { | |
751ae808 | 496 | case HPWMI_DOCK_EVENT: |
e5fbba85 AJ |
497 | input_report_switch(hp_wmi_input_dev, SW_DOCK, |
498 | hp_wmi_dock_state()); | |
499 | input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, | |
500 | hp_wmi_tablet_state()); | |
501 | input_sync(hp_wmi_input_dev); | |
751ae808 | 502 | break; |
1bbdfd59 TR |
503 | case HPWMI_PARK_HDD: |
504 | break; | |
505 | case HPWMI_SMART_ADAPTER: | |
506 | break; | |
751ae808 | 507 | case HPWMI_BEZEL_BUTTON: |
6d96e00c | 508 | ret = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0, |
a8ec105c | 509 | &key_code, |
c3021ea1 | 510 | sizeof(key_code), |
6d96e00c TR |
511 | sizeof(key_code)); |
512 | if (ret) | |
513 | break; | |
4d291ed7 DT |
514 | |
515 | if (!sparse_keymap_report_event(hp_wmi_input_dev, | |
516 | key_code, 1, true)) | |
b5a4223c | 517 | pr_info("Unknown key code - 0x%x\n", key_code); |
751ae808 TR |
518 | break; |
519 | case HPWMI_WIRELESS: | |
c0b9c649 AH |
520 | if (rfkill2_count) { |
521 | hp_wmi_rfkill2_refresh(); | |
522 | break; | |
523 | } | |
524 | ||
e5fbba85 AJ |
525 | if (wifi_rfkill) |
526 | rfkill_set_states(wifi_rfkill, | |
527 | hp_wmi_get_sw_state(HPWMI_WIFI), | |
528 | hp_wmi_get_hw_state(HPWMI_WIFI)); | |
529 | if (bluetooth_rfkill) | |
530 | rfkill_set_states(bluetooth_rfkill, | |
531 | hp_wmi_get_sw_state(HPWMI_BLUETOOTH), | |
532 | hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); | |
533 | if (wwan_rfkill) | |
534 | rfkill_set_states(wwan_rfkill, | |
535 | hp_wmi_get_sw_state(HPWMI_WWAN), | |
536 | hp_wmi_get_hw_state(HPWMI_WWAN)); | |
4fca7ce3 TV |
537 | if (gps_rfkill) |
538 | rfkill_set_states(gps_rfkill, | |
539 | hp_wmi_get_sw_state(HPWMI_GPS), | |
540 | hp_wmi_get_hw_state(HPWMI_GPS)); | |
751ae808 | 541 | break; |
1bbdfd59 | 542 | case HPWMI_CPU_BATTERY_THROTTLE: |
b5a4223c | 543 | pr_info("Unimplemented CPU throttle because of 3 Cell battery event detected\n"); |
1bbdfd59 TR |
544 | break; |
545 | case HPWMI_LOCK_SWITCH: | |
546 | break; | |
d9e290a0 AH |
547 | case HPWMI_LID_SWITCH: |
548 | break; | |
549 | case HPWMI_SCREEN_ROTATION: | |
550 | break; | |
551 | case HPWMI_COOLSENSE_SYSTEM_MOBILE: | |
552 | break; | |
553 | case HPWMI_COOLSENSE_SYSTEM_HOT: | |
554 | break; | |
555 | case HPWMI_PROXIMITY_SENSOR: | |
556 | break; | |
557 | case HPWMI_BACKLIT_KB_BRIGHTNESS: | |
558 | break; | |
559 | case HPWMI_PEAKSHIFT_PERIOD: | |
560 | break; | |
561 | case HPWMI_BATTERY_CHARGE_PERIOD: | |
562 | break; | |
751ae808 | 563 | default: |
b5a4223c | 564 | pr_info("Unknown event_id - %d - 0x%x\n", event_id, event_data); |
751ae808 TR |
565 | break; |
566 | } | |
62ec30d4 MG |
567 | } |
568 | ||
569 | static int __init hp_wmi_input_setup(void) | |
570 | { | |
4d291ed7 | 571 | acpi_status status; |
62ec30d4 MG |
572 | int err; |
573 | ||
574 | hp_wmi_input_dev = input_allocate_device(); | |
bc28596a AL |
575 | if (!hp_wmi_input_dev) |
576 | return -ENOMEM; | |
62ec30d4 MG |
577 | |
578 | hp_wmi_input_dev->name = "HP WMI hotkeys"; | |
579 | hp_wmi_input_dev->phys = "wmi/input0"; | |
580 | hp_wmi_input_dev->id.bustype = BUS_HOST; | |
62ec30d4 | 581 | |
4d291ed7 DT |
582 | __set_bit(EV_SW, hp_wmi_input_dev->evbit); |
583 | __set_bit(SW_DOCK, hp_wmi_input_dev->swbit); | |
584 | __set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit); | |
585 | ||
586 | err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL); | |
587 | if (err) | |
588 | goto err_free_dev; | |
871043bc MG |
589 | |
590 | /* Set initial hardware state */ | |
591 | input_report_switch(hp_wmi_input_dev, SW_DOCK, hp_wmi_dock_state()); | |
592 | input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, | |
593 | hp_wmi_tablet_state()); | |
594 | input_sync(hp_wmi_input_dev); | |
595 | ||
4d291ed7 DT |
596 | status = wmi_install_notify_handler(HPWMI_EVENT_GUID, hp_wmi_notify, NULL); |
597 | if (ACPI_FAILURE(status)) { | |
598 | err = -EIO; | |
599 | goto err_free_keymap; | |
62ec30d4 MG |
600 | } |
601 | ||
4d291ed7 DT |
602 | err = input_register_device(hp_wmi_input_dev); |
603 | if (err) | |
604 | goto err_uninstall_notifier; | |
605 | ||
62ec30d4 | 606 | return 0; |
4d291ed7 DT |
607 | |
608 | err_uninstall_notifier: | |
609 | wmi_remove_notify_handler(HPWMI_EVENT_GUID); | |
610 | err_free_keymap: | |
611 | sparse_keymap_free(hp_wmi_input_dev); | |
612 | err_free_dev: | |
613 | input_free_device(hp_wmi_input_dev); | |
614 | return err; | |
615 | } | |
616 | ||
617 | static void hp_wmi_input_destroy(void) | |
618 | { | |
619 | wmi_remove_notify_handler(HPWMI_EVENT_GUID); | |
620 | sparse_keymap_free(hp_wmi_input_dev); | |
621 | input_unregister_device(hp_wmi_input_dev); | |
62ec30d4 MG |
622 | } |
623 | ||
624 | static void cleanup_sysfs(struct platform_device *device) | |
625 | { | |
626 | device_remove_file(&device->dev, &dev_attr_display); | |
627 | device_remove_file(&device->dev, &dev_attr_hddtemp); | |
628 | device_remove_file(&device->dev, &dev_attr_als); | |
629 | device_remove_file(&device->dev, &dev_attr_dock); | |
871043bc | 630 | device_remove_file(&device->dev, &dev_attr_tablet); |
62ec30d4 MG |
631 | } |
632 | ||
b859f159 | 633 | static int hp_wmi_rfkill_setup(struct platform_device *device) |
62ec30d4 MG |
634 | { |
635 | int err; | |
a8ec105c | 636 | int wireless = 0; |
6d96e00c | 637 | |
a8ec105c | 638 | err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, &wireless, |
c3021ea1 | 639 | sizeof(wireless), sizeof(wireless)); |
6d96e00c TR |
640 | if (err) |
641 | return err; | |
62ec30d4 | 642 | |
21fc94d7 AH |
643 | err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, &wireless, |
644 | sizeof(wireless), 0); | |
645 | if (err) | |
646 | return err; | |
647 | ||
3f6e2f13 | 648 | if (wireless & 0x1) { |
19d337df JB |
649 | wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev, |
650 | RFKILL_TYPE_WLAN, | |
651 | &hp_wmi_rfkill_ops, | |
e5fbba85 | 652 | (void *) HPWMI_WIFI); |
dd258c00 DC |
653 | if (!wifi_rfkill) |
654 | return -ENOMEM; | |
e5fbba85 AJ |
655 | rfkill_init_sw_state(wifi_rfkill, |
656 | hp_wmi_get_sw_state(HPWMI_WIFI)); | |
657 | rfkill_set_hw_state(wifi_rfkill, | |
658 | hp_wmi_get_hw_state(HPWMI_WIFI)); | |
fe8e4e03 LF |
659 | err = rfkill_register(wifi_rfkill); |
660 | if (err) | |
19d337df | 661 | goto register_wifi_error; |
3f6e2f13 MG |
662 | } |
663 | ||
664 | if (wireless & 0x2) { | |
19d337df JB |
665 | bluetooth_rfkill = rfkill_alloc("hp-bluetooth", &device->dev, |
666 | RFKILL_TYPE_BLUETOOTH, | |
667 | &hp_wmi_rfkill_ops, | |
e5fbba85 | 668 | (void *) HPWMI_BLUETOOTH); |
dd258c00 DC |
669 | if (!bluetooth_rfkill) { |
670 | err = -ENOMEM; | |
671 | goto register_wifi_error; | |
672 | } | |
e5fbba85 AJ |
673 | rfkill_init_sw_state(bluetooth_rfkill, |
674 | hp_wmi_get_sw_state(HPWMI_BLUETOOTH)); | |
675 | rfkill_set_hw_state(bluetooth_rfkill, | |
676 | hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); | |
fe8e4e03 | 677 | err = rfkill_register(bluetooth_rfkill); |
6989d565 | 678 | if (err) |
fe8e4e03 | 679 | goto register_bluetooth_error; |
3f6e2f13 MG |
680 | } |
681 | ||
682 | if (wireless & 0x4) { | |
19d337df JB |
683 | wwan_rfkill = rfkill_alloc("hp-wwan", &device->dev, |
684 | RFKILL_TYPE_WWAN, | |
685 | &hp_wmi_rfkill_ops, | |
e5fbba85 | 686 | (void *) HPWMI_WWAN); |
dd258c00 DC |
687 | if (!wwan_rfkill) { |
688 | err = -ENOMEM; | |
4fca7ce3 | 689 | goto register_gps_error; |
dd258c00 | 690 | } |
e5fbba85 AJ |
691 | rfkill_init_sw_state(wwan_rfkill, |
692 | hp_wmi_get_sw_state(HPWMI_WWAN)); | |
693 | rfkill_set_hw_state(wwan_rfkill, | |
694 | hp_wmi_get_hw_state(HPWMI_WWAN)); | |
fe8e4e03 LF |
695 | err = rfkill_register(wwan_rfkill); |
696 | if (err) | |
697 | goto register_wwan_err; | |
3f6e2f13 | 698 | } |
62ec30d4 | 699 | |
4fca7ce3 TV |
700 | if (wireless & 0x8) { |
701 | gps_rfkill = rfkill_alloc("hp-gps", &device->dev, | |
702 | RFKILL_TYPE_GPS, | |
703 | &hp_wmi_rfkill_ops, | |
704 | (void *) HPWMI_GPS); | |
705 | if (!gps_rfkill) { | |
706 | err = -ENOMEM; | |
707 | goto register_bluetooth_error; | |
708 | } | |
709 | rfkill_init_sw_state(gps_rfkill, | |
710 | hp_wmi_get_sw_state(HPWMI_GPS)); | |
af1d486c | 711 | rfkill_set_hw_state(gps_rfkill, |
4fca7ce3 TV |
712 | hp_wmi_get_hw_state(HPWMI_GPS)); |
713 | err = rfkill_register(gps_rfkill); | |
714 | if (err) | |
715 | goto register_gps_error; | |
716 | } | |
717 | ||
62ec30d4 | 718 | return 0; |
fe8e4e03 | 719 | register_wwan_err: |
19d337df | 720 | rfkill_destroy(wwan_rfkill); |
6d97db59 | 721 | wwan_rfkill = NULL; |
4fca7ce3 TV |
722 | if (gps_rfkill) |
723 | rfkill_unregister(gps_rfkill); | |
724 | register_gps_error: | |
725 | rfkill_destroy(gps_rfkill); | |
726 | gps_rfkill = NULL; | |
44f0606d AM |
727 | if (bluetooth_rfkill) |
728 | rfkill_unregister(bluetooth_rfkill); | |
fe8e4e03 | 729 | register_bluetooth_error: |
19d337df | 730 | rfkill_destroy(bluetooth_rfkill); |
6d97db59 | 731 | bluetooth_rfkill = NULL; |
44f0606d AM |
732 | if (wifi_rfkill) |
733 | rfkill_unregister(wifi_rfkill); | |
19d337df JB |
734 | register_wifi_error: |
735 | rfkill_destroy(wifi_rfkill); | |
6d97db59 | 736 | wifi_rfkill = NULL; |
eceb7bdf AH |
737 | return err; |
738 | } | |
739 | ||
b859f159 | 740 | static int hp_wmi_rfkill2_setup(struct platform_device *device) |
c0b9c649 AH |
741 | { |
742 | int err, i; | |
743 | struct bios_rfkill2_state state; | |
744 | err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state, | |
745 | 0, sizeof(state)); | |
746 | if (err) | |
747 | return err; | |
748 | ||
749 | if (state.count > HPWMI_MAX_RFKILL2_DEVICES) { | |
b5a4223c | 750 | pr_warn("unable to parse 0x1b query output\n"); |
c0b9c649 AH |
751 | return -EINVAL; |
752 | } | |
753 | ||
754 | for (i = 0; i < state.count; i++) { | |
755 | struct rfkill *rfkill; | |
756 | enum rfkill_type type; | |
757 | char *name; | |
758 | switch (state.device[i].radio_type) { | |
759 | case HPWMI_WIFI: | |
760 | type = RFKILL_TYPE_WLAN; | |
761 | name = "hp-wifi"; | |
762 | break; | |
763 | case HPWMI_BLUETOOTH: | |
764 | type = RFKILL_TYPE_BLUETOOTH; | |
765 | name = "hp-bluetooth"; | |
766 | break; | |
767 | case HPWMI_WWAN: | |
768 | type = RFKILL_TYPE_WWAN; | |
769 | name = "hp-wwan"; | |
770 | break; | |
4fca7ce3 TV |
771 | case HPWMI_GPS: |
772 | type = RFKILL_TYPE_GPS; | |
773 | name = "hp-gps"; | |
774 | break; | |
c0b9c649 | 775 | default: |
b5a4223c JP |
776 | pr_warn("unknown device type 0x%x\n", |
777 | state.device[i].radio_type); | |
c0b9c649 AH |
778 | continue; |
779 | } | |
780 | ||
781 | if (!state.device[i].vendor_id) { | |
b5a4223c JP |
782 | pr_warn("zero device %d while %d reported\n", |
783 | i, state.count); | |
c0b9c649 AH |
784 | continue; |
785 | } | |
786 | ||
787 | rfkill = rfkill_alloc(name, &device->dev, type, | |
788 | &hp_wmi_rfkill2_ops, (void *)(long)i); | |
789 | if (!rfkill) { | |
790 | err = -ENOMEM; | |
791 | goto fail; | |
792 | } | |
793 | ||
794 | rfkill2[rfkill2_count].id = state.device[i].rfkill_id; | |
795 | rfkill2[rfkill2_count].num = i; | |
796 | rfkill2[rfkill2_count].rfkill = rfkill; | |
797 | ||
798 | rfkill_init_sw_state(rfkill, | |
799 | IS_SWBLOCKED(state.device[i].power)); | |
800 | rfkill_set_hw_state(rfkill, | |
801 | IS_HWBLOCKED(state.device[i].power)); | |
802 | ||
803 | if (!(state.device[i].power & HPWMI_POWER_BIOS)) | |
b5a4223c | 804 | pr_info("device %s blocked by BIOS\n", name); |
c0b9c649 AH |
805 | |
806 | err = rfkill_register(rfkill); | |
807 | if (err) { | |
808 | rfkill_destroy(rfkill); | |
809 | goto fail; | |
810 | } | |
811 | ||
812 | rfkill2_count++; | |
813 | } | |
814 | ||
815 | return 0; | |
816 | fail: | |
817 | for (; rfkill2_count > 0; rfkill2_count--) { | |
818 | rfkill_unregister(rfkill2[rfkill2_count - 1].rfkill); | |
819 | rfkill_destroy(rfkill2[rfkill2_count - 1].rfkill); | |
820 | } | |
821 | return err; | |
822 | } | |
823 | ||
c165b80c | 824 | static int __init hp_wmi_bios_setup(struct platform_device *device) |
eceb7bdf AH |
825 | { |
826 | int err; | |
827 | ||
6d97db59 AH |
828 | /* clear detected rfkill devices */ |
829 | wifi_rfkill = NULL; | |
830 | bluetooth_rfkill = NULL; | |
831 | wwan_rfkill = NULL; | |
4fca7ce3 | 832 | gps_rfkill = NULL; |
c0b9c649 | 833 | rfkill2_count = 0; |
6d97db59 | 834 | |
c0b9c649 AH |
835 | if (hp_wmi_rfkill_setup(device)) |
836 | hp_wmi_rfkill2_setup(device); | |
eceb7bdf AH |
837 | |
838 | err = device_create_file(&device->dev, &dev_attr_display); | |
839 | if (err) | |
840 | goto add_sysfs_error; | |
841 | err = device_create_file(&device->dev, &dev_attr_hddtemp); | |
842 | if (err) | |
843 | goto add_sysfs_error; | |
844 | err = device_create_file(&device->dev, &dev_attr_als); | |
845 | if (err) | |
846 | goto add_sysfs_error; | |
847 | err = device_create_file(&device->dev, &dev_attr_dock); | |
848 | if (err) | |
849 | goto add_sysfs_error; | |
850 | err = device_create_file(&device->dev, &dev_attr_tablet); | |
851 | if (err) | |
852 | goto add_sysfs_error; | |
853 | return 0; | |
854 | ||
62ec30d4 MG |
855 | add_sysfs_error: |
856 | cleanup_sysfs(device); | |
857 | return err; | |
858 | } | |
859 | ||
860 | static int __exit hp_wmi_bios_remove(struct platform_device *device) | |
861 | { | |
c0b9c649 | 862 | int i; |
62ec30d4 MG |
863 | cleanup_sysfs(device); |
864 | ||
c0b9c649 AH |
865 | for (i = 0; i < rfkill2_count; i++) { |
866 | rfkill_unregister(rfkill2[i].rfkill); | |
867 | rfkill_destroy(rfkill2[i].rfkill); | |
868 | } | |
869 | ||
19d337df | 870 | if (wifi_rfkill) { |
3f6e2f13 | 871 | rfkill_unregister(wifi_rfkill); |
19d337df JB |
872 | rfkill_destroy(wifi_rfkill); |
873 | } | |
874 | if (bluetooth_rfkill) { | |
3f6e2f13 | 875 | rfkill_unregister(bluetooth_rfkill); |
09729f0b | 876 | rfkill_destroy(bluetooth_rfkill); |
19d337df JB |
877 | } |
878 | if (wwan_rfkill) { | |
3f6e2f13 | 879 | rfkill_unregister(wwan_rfkill); |
19d337df JB |
880 | rfkill_destroy(wwan_rfkill); |
881 | } | |
4fca7ce3 TV |
882 | if (gps_rfkill) { |
883 | rfkill_unregister(gps_rfkill); | |
884 | rfkill_destroy(gps_rfkill); | |
885 | } | |
62ec30d4 MG |
886 | |
887 | return 0; | |
888 | } | |
889 | ||
8dd2b426 | 890 | static int hp_wmi_resume_handler(struct device *device) |
4c395bdd | 891 | { |
4c395bdd | 892 | /* |
871043bc MG |
893 | * Hardware state may have changed while suspended, so trigger |
894 | * input events for the current state. As this is a switch, | |
4c395bdd FP |
895 | * the input layer will only actually pass it on if the state |
896 | * changed. | |
897 | */ | |
daed9537 FP |
898 | if (hp_wmi_input_dev) { |
899 | input_report_switch(hp_wmi_input_dev, SW_DOCK, | |
900 | hp_wmi_dock_state()); | |
901 | input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, | |
902 | hp_wmi_tablet_state()); | |
903 | input_sync(hp_wmi_input_dev); | |
904 | } | |
4c395bdd | 905 | |
c0b9c649 AH |
906 | if (rfkill2_count) |
907 | hp_wmi_rfkill2_refresh(); | |
908 | ||
e5fbba85 AJ |
909 | if (wifi_rfkill) |
910 | rfkill_set_states(wifi_rfkill, | |
911 | hp_wmi_get_sw_state(HPWMI_WIFI), | |
912 | hp_wmi_get_hw_state(HPWMI_WIFI)); | |
913 | if (bluetooth_rfkill) | |
914 | rfkill_set_states(bluetooth_rfkill, | |
915 | hp_wmi_get_sw_state(HPWMI_BLUETOOTH), | |
916 | hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); | |
917 | if (wwan_rfkill) | |
918 | rfkill_set_states(wwan_rfkill, | |
919 | hp_wmi_get_sw_state(HPWMI_WWAN), | |
920 | hp_wmi_get_hw_state(HPWMI_WWAN)); | |
4fca7ce3 TV |
921 | if (gps_rfkill) |
922 | rfkill_set_states(gps_rfkill, | |
923 | hp_wmi_get_sw_state(HPWMI_GPS), | |
924 | hp_wmi_get_hw_state(HPWMI_GPS)); | |
e5fbba85 | 925 | |
4c395bdd FP |
926 | return 0; |
927 | } | |
928 | ||
c165b80c DT |
929 | static const struct dev_pm_ops hp_wmi_pm_ops = { |
930 | .resume = hp_wmi_resume_handler, | |
931 | .restore = hp_wmi_resume_handler, | |
932 | }; | |
933 | ||
934 | static struct platform_driver hp_wmi_driver = { | |
935 | .driver = { | |
936 | .name = "hp-wmi", | |
937 | .owner = THIS_MODULE, | |
938 | .pm = &hp_wmi_pm_ops, | |
939 | }, | |
940 | .remove = __exit_p(hp_wmi_bios_remove), | |
941 | }; | |
942 | ||
62ec30d4 MG |
943 | static int __init hp_wmi_init(void) |
944 | { | |
945 | int err; | |
b096667b TR |
946 | int event_capable = wmi_has_guid(HPWMI_EVENT_GUID); |
947 | int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID); | |
62ec30d4 | 948 | |
c165b80c DT |
949 | if (!bios_capable && !event_capable) |
950 | return -ENODEV; | |
951 | ||
b096667b | 952 | if (event_capable) { |
dfec5c48 | 953 | err = hp_wmi_input_setup(); |
4d291ed7 | 954 | if (err) |
dfec5c48 | 955 | return err; |
62ec30d4 MG |
956 | } |
957 | ||
b096667b | 958 | if (bios_capable) { |
c165b80c DT |
959 | hp_wmi_platform_dev = |
960 | platform_device_register_simple("hp-wmi", -1, NULL, 0); | |
961 | if (IS_ERR(hp_wmi_platform_dev)) { | |
962 | err = PTR_ERR(hp_wmi_platform_dev); | |
963 | goto err_destroy_input; | |
62ec30d4 | 964 | } |
c165b80c DT |
965 | |
966 | err = platform_driver_probe(&hp_wmi_driver, hp_wmi_bios_setup); | |
dfec5c48 | 967 | if (err) |
c165b80c | 968 | goto err_unregister_device; |
62ec30d4 MG |
969 | } |
970 | ||
971 | return 0; | |
dfec5c48 | 972 | |
c165b80c DT |
973 | err_unregister_device: |
974 | platform_device_unregister(hp_wmi_platform_dev); | |
975 | err_destroy_input: | |
4d291ed7 DT |
976 | if (event_capable) |
977 | hp_wmi_input_destroy(); | |
dfec5c48 AL |
978 | |
979 | return err; | |
62ec30d4 | 980 | } |
c165b80c | 981 | module_init(hp_wmi_init); |
62ec30d4 MG |
982 | |
983 | static void __exit hp_wmi_exit(void) | |
984 | { | |
4d291ed7 DT |
985 | if (wmi_has_guid(HPWMI_EVENT_GUID)) |
986 | hp_wmi_input_destroy(); | |
987 | ||
62ec30d4 | 988 | if (hp_wmi_platform_dev) { |
97ba0af0 | 989 | platform_device_unregister(hp_wmi_platform_dev); |
62ec30d4 MG |
990 | platform_driver_unregister(&hp_wmi_driver); |
991 | } | |
992 | } | |
62ec30d4 | 993 | module_exit(hp_wmi_exit); |