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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 |
8667ca95 | 58 | #define HPWMI_POSTCODEERROR_QUERY 0x2a |
62ec30d4 | 59 | |
e5fbba85 AJ |
60 | enum hp_wmi_radio { |
61 | HPWMI_WIFI = 0, | |
62 | HPWMI_BLUETOOTH = 1, | |
63 | HPWMI_WWAN = 2, | |
4fca7ce3 | 64 | HPWMI_GPS = 3, |
e5fbba85 AJ |
65 | }; |
66 | ||
751ae808 TR |
67 | enum hp_wmi_event_ids { |
68 | HPWMI_DOCK_EVENT = 1, | |
1bbdfd59 TR |
69 | HPWMI_PARK_HDD = 2, |
70 | HPWMI_SMART_ADAPTER = 3, | |
751ae808 TR |
71 | HPWMI_BEZEL_BUTTON = 4, |
72 | HPWMI_WIRELESS = 5, | |
1bbdfd59 TR |
73 | HPWMI_CPU_BATTERY_THROTTLE = 6, |
74 | HPWMI_LOCK_SWITCH = 7, | |
d9e290a0 AH |
75 | HPWMI_LID_SWITCH = 8, |
76 | HPWMI_SCREEN_ROTATION = 9, | |
77 | HPWMI_COOLSENSE_SYSTEM_MOBILE = 0x0A, | |
78 | HPWMI_COOLSENSE_SYSTEM_HOT = 0x0B, | |
79 | HPWMI_PROXIMITY_SENSOR = 0x0C, | |
80 | HPWMI_BACKLIT_KB_BRIGHTNESS = 0x0D, | |
81 | HPWMI_PEAKSHIFT_PERIOD = 0x0F, | |
82 | HPWMI_BATTERY_CHARGE_PERIOD = 0x10, | |
751ae808 TR |
83 | }; |
84 | ||
62ec30d4 MG |
85 | struct bios_args { |
86 | u32 signature; | |
87 | u32 command; | |
88 | u32 commandtype; | |
89 | u32 datasize; | |
a8ec105c | 90 | u32 data; |
62ec30d4 MG |
91 | }; |
92 | ||
93 | struct bios_return { | |
94 | u32 sigpass; | |
95 | u32 return_code; | |
62ec30d4 MG |
96 | }; |
97 | ||
9af0e0fb AH |
98 | enum hp_return_value { |
99 | HPWMI_RET_WRONG_SIGNATURE = 0x02, | |
100 | HPWMI_RET_UNKNOWN_COMMAND = 0x03, | |
101 | HPWMI_RET_UNKNOWN_CMDTYPE = 0x04, | |
102 | HPWMI_RET_INVALID_PARAMETERS = 0x05, | |
103 | }; | |
104 | ||
c0b9c649 AH |
105 | enum hp_wireless2_bits { |
106 | HPWMI_POWER_STATE = 0x01, | |
107 | HPWMI_POWER_SOFT = 0x02, | |
108 | HPWMI_POWER_BIOS = 0x04, | |
109 | HPWMI_POWER_HARD = 0x08, | |
110 | }; | |
111 | ||
112 | #define IS_HWBLOCKED(x) ((x & (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) \ | |
113 | != (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) | |
114 | #define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT) | |
115 | ||
116 | struct bios_rfkill2_device_state { | |
117 | u8 radio_type; | |
118 | u8 bus_type; | |
119 | u16 vendor_id; | |
120 | u16 product_id; | |
121 | u16 subsys_vendor_id; | |
122 | u16 subsys_product_id; | |
123 | u8 rfkill_id; | |
124 | u8 power; | |
125 | u8 unknown[4]; | |
126 | }; | |
127 | ||
128 | /* 7 devices fit into the 128 byte buffer */ | |
129 | #define HPWMI_MAX_RFKILL2_DEVICES 7 | |
130 | ||
131 | struct bios_rfkill2_state { | |
132 | u8 unknown[7]; | |
133 | u8 count; | |
134 | u8 pad[8]; | |
135 | struct bios_rfkill2_device_state device[HPWMI_MAX_RFKILL2_DEVICES]; | |
136 | }; | |
137 | ||
4d291ed7 DT |
138 | static const struct key_entry hp_wmi_keymap[] = { |
139 | { KE_KEY, 0x02, { KEY_BRIGHTNESSUP } }, | |
140 | { KE_KEY, 0x03, { KEY_BRIGHTNESSDOWN } }, | |
141 | { KE_KEY, 0x20e6, { KEY_PROG1 } }, | |
142 | { KE_KEY, 0x20e8, { KEY_MEDIA } }, | |
143 | { KE_KEY, 0x2142, { KEY_MEDIA } }, | |
144 | { KE_KEY, 0x213b, { KEY_INFO } }, | |
145 | { KE_KEY, 0x2169, { KEY_DIRECTION } }, | |
146 | { KE_KEY, 0x231b, { KEY_HELP } }, | |
147 | { KE_END, 0 } | |
62ec30d4 MG |
148 | }; |
149 | ||
150 | static struct input_dev *hp_wmi_input_dev; | |
151 | static struct platform_device *hp_wmi_platform_dev; | |
152 | ||
153 | static struct rfkill *wifi_rfkill; | |
154 | static struct rfkill *bluetooth_rfkill; | |
155 | static struct rfkill *wwan_rfkill; | |
4fca7ce3 | 156 | static struct rfkill *gps_rfkill; |
62ec30d4 | 157 | |
c0b9c649 AH |
158 | struct rfkill2_device { |
159 | u8 id; | |
160 | int num; | |
161 | struct rfkill *rfkill; | |
162 | }; | |
163 | ||
164 | static int rfkill2_count; | |
165 | static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES]; | |
166 | ||
6d96e00c TR |
167 | /* |
168 | * hp_wmi_perform_query | |
169 | * | |
170 | * query: The commandtype -> What should be queried | |
171 | * write: The command -> 0 read, 1 write, 3 ODM specific | |
172 | * buffer: Buffer used as input and/or output | |
c3021ea1 AH |
173 | * insize: Size of input buffer |
174 | * outsize: Size of output buffer | |
6d96e00c TR |
175 | * |
176 | * returns zero on success | |
177 | * an HP WMI query specific error code (which is positive) | |
178 | * -EINVAL if the query was not successful at all | |
179 | * -EINVAL if the output buffer size exceeds buffersize | |
180 | * | |
181 | * Note: The buffersize must at least be the maximum of the input and output | |
182 | * size. E.g. Battery info query (0x7) is defined to have 1 byte input | |
183 | * and 128 byte output. The caller would do: | |
184 | * buffer = kzalloc(128, GFP_KERNEL); | |
c3021ea1 | 185 | * ret = hp_wmi_perform_query(0x7, 0, buffer, 1, 128) |
6d96e00c | 186 | */ |
c3021ea1 AH |
187 | static int hp_wmi_perform_query(int query, int write, void *buffer, |
188 | int insize, int outsize) | |
62ec30d4 | 189 | { |
c3021ea1 AH |
190 | struct bios_return *bios_return; |
191 | int actual_outsize; | |
62ec30d4 MG |
192 | union acpi_object *obj; |
193 | struct bios_args args = { | |
194 | .signature = 0x55434553, | |
195 | .command = write ? 0x2 : 0x1, | |
196 | .commandtype = query, | |
c3021ea1 AH |
197 | .datasize = insize, |
198 | .data = 0, | |
62ec30d4 MG |
199 | }; |
200 | struct acpi_buffer input = { sizeof(struct bios_args), &args }; | |
201 | struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; | |
0401846c | 202 | u32 rc; |
62ec30d4 | 203 | |
c3021ea1 AH |
204 | if (WARN_ON(insize > sizeof(args.data))) |
205 | return -EINVAL; | |
206 | memcpy(&args.data, buffer, insize); | |
207 | ||
25bb067a | 208 | wmi_evaluate_method(HPWMI_BIOS_GUID, 0, 0x3, &input, &output); |
62ec30d4 MG |
209 | |
210 | obj = output.pointer; | |
211 | ||
44ef00e6 | 212 | if (!obj) |
62ec30d4 | 213 | return -EINVAL; |
44ef00e6 TR |
214 | else if (obj->type != ACPI_TYPE_BUFFER) { |
215 | kfree(obj); | |
216 | return -EINVAL; | |
217 | } | |
62ec30d4 | 218 | |
c3021ea1 | 219 | bios_return = (struct bios_return *)obj->buffer.pointer; |
0401846c | 220 | rc = bios_return->return_code; |
6d96e00c | 221 | |
0401846c ED |
222 | if (rc) { |
223 | if (rc != HPWMI_RET_UNKNOWN_CMDTYPE) | |
224 | pr_warn("query 0x%x returned error 0x%x\n", query, rc); | |
9af0e0fb | 225 | kfree(obj); |
0401846c | 226 | return rc; |
9af0e0fb AH |
227 | } |
228 | ||
c3021ea1 AH |
229 | if (!outsize) { |
230 | /* ignore output data */ | |
231 | kfree(obj); | |
232 | return 0; | |
233 | } | |
53c96dfd | 234 | |
c3021ea1 AH |
235 | actual_outsize = min(outsize, (int)(obj->buffer.length - sizeof(*bios_return))); |
236 | memcpy(buffer, obj->buffer.pointer + sizeof(*bios_return), actual_outsize); | |
237 | memset(buffer + actual_outsize, 0, outsize - actual_outsize); | |
53c96dfd | 238 | kfree(obj); |
6d96e00c | 239 | return 0; |
62ec30d4 MG |
240 | } |
241 | ||
242 | static int hp_wmi_display_state(void) | |
243 | { | |
a8ec105c MG |
244 | int state = 0; |
245 | int ret = hp_wmi_perform_query(HPWMI_DISPLAY_QUERY, 0, &state, | |
c3021ea1 | 246 | sizeof(state), sizeof(state)); |
6d96e00c TR |
247 | if (ret) |
248 | return -EINVAL; | |
249 | return state; | |
62ec30d4 MG |
250 | } |
251 | ||
252 | static int hp_wmi_hddtemp_state(void) | |
253 | { | |
a8ec105c MG |
254 | int state = 0; |
255 | int ret = hp_wmi_perform_query(HPWMI_HDDTEMP_QUERY, 0, &state, | |
c3021ea1 | 256 | sizeof(state), sizeof(state)); |
6d96e00c TR |
257 | if (ret) |
258 | return -EINVAL; | |
259 | return state; | |
62ec30d4 MG |
260 | } |
261 | ||
262 | static int hp_wmi_als_state(void) | |
263 | { | |
a8ec105c MG |
264 | int state = 0; |
265 | int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 0, &state, | |
c3021ea1 | 266 | sizeof(state), sizeof(state)); |
6d96e00c TR |
267 | if (ret) |
268 | return -EINVAL; | |
269 | return state; | |
62ec30d4 MG |
270 | } |
271 | ||
272 | static int hp_wmi_dock_state(void) | |
273 | { | |
a8ec105c MG |
274 | int state = 0; |
275 | int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state, | |
c3021ea1 | 276 | sizeof(state), sizeof(state)); |
62ec30d4 | 277 | |
6d96e00c TR |
278 | if (ret) |
279 | return -EINVAL; | |
871043bc | 280 | |
6d96e00c | 281 | return state & 0x1; |
62ec30d4 MG |
282 | } |
283 | ||
871043bc | 284 | static int hp_wmi_tablet_state(void) |
62ec30d4 | 285 | { |
a8ec105c MG |
286 | int state = 0; |
287 | int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state, | |
c3021ea1 | 288 | sizeof(state), sizeof(state)); |
6d96e00c | 289 | if (ret) |
871043bc MG |
290 | return ret; |
291 | ||
6d96e00c | 292 | return (state & 0x4) ? 1 : 0; |
62ec30d4 MG |
293 | } |
294 | ||
19d337df | 295 | static int hp_wmi_set_block(void *data, bool blocked) |
62ec30d4 | 296 | { |
e5fbba85 AJ |
297 | enum hp_wmi_radio r = (enum hp_wmi_radio) data; |
298 | int query = BIT(r + 8) | ((!blocked) << r); | |
6d96e00c | 299 | int ret; |
62ec30d4 | 300 | |
6d96e00c | 301 | ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, |
c3021ea1 | 302 | &query, sizeof(query), 0); |
6d96e00c TR |
303 | if (ret) |
304 | return -EINVAL; | |
305 | return 0; | |
62ec30d4 MG |
306 | } |
307 | ||
19d337df JB |
308 | static const struct rfkill_ops hp_wmi_rfkill_ops = { |
309 | .set_block = hp_wmi_set_block, | |
310 | }; | |
62ec30d4 | 311 | |
e5fbba85 | 312 | static bool hp_wmi_get_sw_state(enum hp_wmi_radio r) |
62ec30d4 | 313 | { |
a8ec105c | 314 | int wireless = 0; |
6d96e00c TR |
315 | int mask; |
316 | hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, | |
c3021ea1 AH |
317 | &wireless, sizeof(wireless), |
318 | sizeof(wireless)); | |
6d96e00c TR |
319 | /* TBD: Pass error */ |
320 | ||
321 | mask = 0x200 << (r * 8); | |
62ec30d4 | 322 | |
e5fbba85 | 323 | if (wireless & mask) |
19d337df | 324 | return false; |
62ec30d4 | 325 | else |
19d337df | 326 | return true; |
62ec30d4 MG |
327 | } |
328 | ||
e5fbba85 | 329 | static bool hp_wmi_get_hw_state(enum hp_wmi_radio r) |
62ec30d4 | 330 | { |
a8ec105c | 331 | int wireless = 0; |
6d96e00c TR |
332 | int mask; |
333 | hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, | |
c3021ea1 AH |
334 | &wireless, sizeof(wireless), |
335 | sizeof(wireless)); | |
6d96e00c TR |
336 | /* TBD: Pass error */ |
337 | ||
338 | mask = 0x800 << (r * 8); | |
62ec30d4 | 339 | |
e5fbba85 | 340 | if (wireless & mask) |
19d337df | 341 | return false; |
62ec30d4 | 342 | else |
19d337df | 343 | return true; |
62ec30d4 MG |
344 | } |
345 | ||
c0b9c649 AH |
346 | static int hp_wmi_rfkill2_set_block(void *data, bool blocked) |
347 | { | |
348 | int rfkill_id = (int)(long)data; | |
349 | char buffer[4] = { 0x01, 0x00, rfkill_id, !blocked }; | |
350 | ||
351 | if (hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 1, | |
352 | buffer, sizeof(buffer), 0)) | |
353 | return -EINVAL; | |
354 | return 0; | |
355 | } | |
356 | ||
357 | static const struct rfkill_ops hp_wmi_rfkill2_ops = { | |
358 | .set_block = hp_wmi_rfkill2_set_block, | |
359 | }; | |
360 | ||
361 | static int hp_wmi_rfkill2_refresh(void) | |
362 | { | |
363 | int err, i; | |
364 | struct bios_rfkill2_state state; | |
365 | ||
366 | err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state, | |
367 | 0, sizeof(state)); | |
368 | if (err) | |
369 | return err; | |
370 | ||
371 | for (i = 0; i < rfkill2_count; i++) { | |
372 | int num = rfkill2[i].num; | |
373 | struct bios_rfkill2_device_state *devstate; | |
374 | devstate = &state.device[num]; | |
375 | ||
376 | if (num >= state.count || | |
377 | devstate->rfkill_id != rfkill2[i].id) { | |
b5a4223c | 378 | pr_warn("power configuration of the wireless devices unexpectedly changed\n"); |
c0b9c649 AH |
379 | continue; |
380 | } | |
381 | ||
382 | rfkill_set_states(rfkill2[i].rfkill, | |
383 | IS_SWBLOCKED(devstate->power), | |
384 | IS_HWBLOCKED(devstate->power)); | |
385 | } | |
386 | ||
387 | return 0; | |
388 | } | |
389 | ||
8667ca95 AH |
390 | static int hp_wmi_post_code_state(void) |
391 | { | |
392 | int state = 0; | |
393 | int ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, 0, &state, | |
394 | sizeof(state), sizeof(state)); | |
395 | if (ret) | |
396 | return -EINVAL; | |
397 | return state; | |
398 | } | |
399 | ||
62ec30d4 MG |
400 | static ssize_t show_display(struct device *dev, struct device_attribute *attr, |
401 | char *buf) | |
402 | { | |
403 | int value = hp_wmi_display_state(); | |
404 | if (value < 0) | |
405 | return -EINVAL; | |
406 | return sprintf(buf, "%d\n", value); | |
407 | } | |
408 | ||
409 | static ssize_t show_hddtemp(struct device *dev, struct device_attribute *attr, | |
410 | char *buf) | |
411 | { | |
412 | int value = hp_wmi_hddtemp_state(); | |
413 | if (value < 0) | |
414 | return -EINVAL; | |
415 | return sprintf(buf, "%d\n", value); | |
416 | } | |
417 | ||
418 | static ssize_t show_als(struct device *dev, struct device_attribute *attr, | |
419 | char *buf) | |
420 | { | |
421 | int value = hp_wmi_als_state(); | |
422 | if (value < 0) | |
423 | return -EINVAL; | |
424 | return sprintf(buf, "%d\n", value); | |
425 | } | |
426 | ||
427 | static ssize_t show_dock(struct device *dev, struct device_attribute *attr, | |
428 | char *buf) | |
429 | { | |
430 | int value = hp_wmi_dock_state(); | |
431 | if (value < 0) | |
432 | return -EINVAL; | |
433 | return sprintf(buf, "%d\n", value); | |
434 | } | |
435 | ||
871043bc MG |
436 | static ssize_t show_tablet(struct device *dev, struct device_attribute *attr, |
437 | char *buf) | |
438 | { | |
439 | int value = hp_wmi_tablet_state(); | |
440 | if (value < 0) | |
441 | return -EINVAL; | |
442 | return sprintf(buf, "%d\n", value); | |
443 | } | |
444 | ||
8667ca95 AH |
445 | static ssize_t show_postcode(struct device *dev, struct device_attribute *attr, |
446 | char *buf) | |
447 | { | |
448 | /* Get the POST error code of previous boot failure. */ | |
449 | int value = hp_wmi_post_code_state(); | |
450 | if (value < 0) | |
451 | return -EINVAL; | |
452 | return sprintf(buf, "0x%x\n", value); | |
453 | } | |
454 | ||
62ec30d4 MG |
455 | static ssize_t set_als(struct device *dev, struct device_attribute *attr, |
456 | const char *buf, size_t count) | |
457 | { | |
458 | u32 tmp = simple_strtoul(buf, NULL, 10); | |
a8ec105c | 459 | int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 1, &tmp, |
c3021ea1 | 460 | sizeof(tmp), sizeof(tmp)); |
6d96e00c TR |
461 | if (ret) |
462 | return -EINVAL; | |
463 | ||
62ec30d4 MG |
464 | return count; |
465 | } | |
466 | ||
8667ca95 AH |
467 | static ssize_t set_postcode(struct device *dev, struct device_attribute *attr, |
468 | const char *buf, size_t count) | |
469 | { | |
470 | int ret; | |
471 | u32 tmp; | |
472 | long unsigned int tmp2; | |
473 | ||
474 | ret = kstrtoul(buf, 10, &tmp2); | |
475 | if (ret || tmp2 != 1) | |
476 | return -EINVAL; | |
477 | ||
478 | /* Clear the POST error code. It is kept until until cleared. */ | |
479 | tmp = (u32) tmp2; | |
480 | ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, 1, &tmp, | |
481 | sizeof(tmp), sizeof(tmp)); | |
482 | if (ret) | |
483 | return -EINVAL; | |
484 | ||
485 | return count; | |
486 | } | |
487 | ||
62ec30d4 MG |
488 | static DEVICE_ATTR(display, S_IRUGO, show_display, NULL); |
489 | static DEVICE_ATTR(hddtemp, S_IRUGO, show_hddtemp, NULL); | |
490 | static DEVICE_ATTR(als, S_IRUGO | S_IWUSR, show_als, set_als); | |
491 | static DEVICE_ATTR(dock, S_IRUGO, show_dock, NULL); | |
871043bc | 492 | static DEVICE_ATTR(tablet, S_IRUGO, show_tablet, NULL); |
8667ca95 | 493 | static DEVICE_ATTR(postcode, S_IRUGO | S_IWUSR, show_postcode, set_postcode); |
62ec30d4 | 494 | |
88429a10 | 495 | static void hp_wmi_notify(u32 value, void *context) |
62ec30d4 MG |
496 | { |
497 | struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; | |
62ec30d4 | 498 | union acpi_object *obj; |
8dda6b04 | 499 | u32 event_id, event_data; |
a8ec105c | 500 | int key_code = 0, ret; |
8dda6b04 | 501 | u32 *location; |
fda11e61 | 502 | acpi_status status; |
62ec30d4 | 503 | |
fda11e61 LB |
504 | status = wmi_get_event_data(value, &response); |
505 | if (status != AE_OK) { | |
b5a4223c | 506 | pr_info("bad event status 0x%x\n", status); |
fda11e61 LB |
507 | return; |
508 | } | |
62ec30d4 MG |
509 | |
510 | obj = (union acpi_object *)response.pointer; | |
511 | ||
c4775062 TR |
512 | if (!obj) |
513 | return; | |
514 | if (obj->type != ACPI_TYPE_BUFFER) { | |
b5a4223c | 515 | pr_info("Unknown response received %d\n", obj->type); |
44ef00e6 | 516 | kfree(obj); |
e5fbba85 AJ |
517 | return; |
518 | } | |
519 | ||
8dda6b04 TR |
520 | /* |
521 | * Depending on ACPI version the concatenation of id and event data | |
522 | * inside _WED function will result in a 8 or 16 byte buffer. | |
523 | */ | |
524 | location = (u32 *)obj->buffer.pointer; | |
525 | if (obj->buffer.length == 8) { | |
526 | event_id = *location; | |
527 | event_data = *(location + 1); | |
528 | } else if (obj->buffer.length == 16) { | |
529 | event_id = *location; | |
530 | event_data = *(location + 2); | |
531 | } else { | |
b5a4223c | 532 | pr_info("Unknown buffer length %d\n", obj->buffer.length); |
8dda6b04 TR |
533 | kfree(obj); |
534 | return; | |
535 | } | |
44ef00e6 | 536 | kfree(obj); |
8dda6b04 TR |
537 | |
538 | switch (event_id) { | |
751ae808 | 539 | case HPWMI_DOCK_EVENT: |
e5fbba85 AJ |
540 | input_report_switch(hp_wmi_input_dev, SW_DOCK, |
541 | hp_wmi_dock_state()); | |
542 | input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, | |
543 | hp_wmi_tablet_state()); | |
544 | input_sync(hp_wmi_input_dev); | |
751ae808 | 545 | break; |
1bbdfd59 TR |
546 | case HPWMI_PARK_HDD: |
547 | break; | |
548 | case HPWMI_SMART_ADAPTER: | |
549 | break; | |
751ae808 | 550 | case HPWMI_BEZEL_BUTTON: |
6d96e00c | 551 | ret = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0, |
a8ec105c | 552 | &key_code, |
c3021ea1 | 553 | sizeof(key_code), |
6d96e00c TR |
554 | sizeof(key_code)); |
555 | if (ret) | |
556 | break; | |
4d291ed7 DT |
557 | |
558 | if (!sparse_keymap_report_event(hp_wmi_input_dev, | |
559 | key_code, 1, true)) | |
b5a4223c | 560 | pr_info("Unknown key code - 0x%x\n", key_code); |
751ae808 TR |
561 | break; |
562 | case HPWMI_WIRELESS: | |
c0b9c649 AH |
563 | if (rfkill2_count) { |
564 | hp_wmi_rfkill2_refresh(); | |
565 | break; | |
566 | } | |
567 | ||
e5fbba85 AJ |
568 | if (wifi_rfkill) |
569 | rfkill_set_states(wifi_rfkill, | |
570 | hp_wmi_get_sw_state(HPWMI_WIFI), | |
571 | hp_wmi_get_hw_state(HPWMI_WIFI)); | |
572 | if (bluetooth_rfkill) | |
573 | rfkill_set_states(bluetooth_rfkill, | |
574 | hp_wmi_get_sw_state(HPWMI_BLUETOOTH), | |
575 | hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); | |
576 | if (wwan_rfkill) | |
577 | rfkill_set_states(wwan_rfkill, | |
578 | hp_wmi_get_sw_state(HPWMI_WWAN), | |
579 | hp_wmi_get_hw_state(HPWMI_WWAN)); | |
4fca7ce3 TV |
580 | if (gps_rfkill) |
581 | rfkill_set_states(gps_rfkill, | |
582 | hp_wmi_get_sw_state(HPWMI_GPS), | |
583 | hp_wmi_get_hw_state(HPWMI_GPS)); | |
751ae808 | 584 | break; |
1bbdfd59 | 585 | case HPWMI_CPU_BATTERY_THROTTLE: |
b5a4223c | 586 | pr_info("Unimplemented CPU throttle because of 3 Cell battery event detected\n"); |
1bbdfd59 TR |
587 | break; |
588 | case HPWMI_LOCK_SWITCH: | |
589 | break; | |
d9e290a0 AH |
590 | case HPWMI_LID_SWITCH: |
591 | break; | |
592 | case HPWMI_SCREEN_ROTATION: | |
593 | break; | |
594 | case HPWMI_COOLSENSE_SYSTEM_MOBILE: | |
595 | break; | |
596 | case HPWMI_COOLSENSE_SYSTEM_HOT: | |
597 | break; | |
598 | case HPWMI_PROXIMITY_SENSOR: | |
599 | break; | |
600 | case HPWMI_BACKLIT_KB_BRIGHTNESS: | |
601 | break; | |
602 | case HPWMI_PEAKSHIFT_PERIOD: | |
603 | break; | |
604 | case HPWMI_BATTERY_CHARGE_PERIOD: | |
605 | break; | |
751ae808 | 606 | default: |
b5a4223c | 607 | pr_info("Unknown event_id - %d - 0x%x\n", event_id, event_data); |
751ae808 TR |
608 | break; |
609 | } | |
62ec30d4 MG |
610 | } |
611 | ||
612 | static int __init hp_wmi_input_setup(void) | |
613 | { | |
4d291ed7 | 614 | acpi_status status; |
62ec30d4 MG |
615 | int err; |
616 | ||
617 | hp_wmi_input_dev = input_allocate_device(); | |
bc28596a AL |
618 | if (!hp_wmi_input_dev) |
619 | return -ENOMEM; | |
62ec30d4 MG |
620 | |
621 | hp_wmi_input_dev->name = "HP WMI hotkeys"; | |
622 | hp_wmi_input_dev->phys = "wmi/input0"; | |
623 | hp_wmi_input_dev->id.bustype = BUS_HOST; | |
62ec30d4 | 624 | |
4d291ed7 DT |
625 | __set_bit(EV_SW, hp_wmi_input_dev->evbit); |
626 | __set_bit(SW_DOCK, hp_wmi_input_dev->swbit); | |
627 | __set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit); | |
628 | ||
629 | err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL); | |
630 | if (err) | |
631 | goto err_free_dev; | |
871043bc MG |
632 | |
633 | /* Set initial hardware state */ | |
634 | input_report_switch(hp_wmi_input_dev, SW_DOCK, hp_wmi_dock_state()); | |
635 | input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, | |
636 | hp_wmi_tablet_state()); | |
637 | input_sync(hp_wmi_input_dev); | |
638 | ||
4d291ed7 DT |
639 | status = wmi_install_notify_handler(HPWMI_EVENT_GUID, hp_wmi_notify, NULL); |
640 | if (ACPI_FAILURE(status)) { | |
641 | err = -EIO; | |
642 | goto err_free_keymap; | |
62ec30d4 MG |
643 | } |
644 | ||
4d291ed7 DT |
645 | err = input_register_device(hp_wmi_input_dev); |
646 | if (err) | |
647 | goto err_uninstall_notifier; | |
648 | ||
62ec30d4 | 649 | return 0; |
4d291ed7 DT |
650 | |
651 | err_uninstall_notifier: | |
652 | wmi_remove_notify_handler(HPWMI_EVENT_GUID); | |
653 | err_free_keymap: | |
654 | sparse_keymap_free(hp_wmi_input_dev); | |
655 | err_free_dev: | |
656 | input_free_device(hp_wmi_input_dev); | |
657 | return err; | |
658 | } | |
659 | ||
660 | static void hp_wmi_input_destroy(void) | |
661 | { | |
662 | wmi_remove_notify_handler(HPWMI_EVENT_GUID); | |
663 | sparse_keymap_free(hp_wmi_input_dev); | |
664 | input_unregister_device(hp_wmi_input_dev); | |
62ec30d4 MG |
665 | } |
666 | ||
667 | static void cleanup_sysfs(struct platform_device *device) | |
668 | { | |
669 | device_remove_file(&device->dev, &dev_attr_display); | |
670 | device_remove_file(&device->dev, &dev_attr_hddtemp); | |
671 | device_remove_file(&device->dev, &dev_attr_als); | |
672 | device_remove_file(&device->dev, &dev_attr_dock); | |
871043bc | 673 | device_remove_file(&device->dev, &dev_attr_tablet); |
8667ca95 | 674 | device_remove_file(&device->dev, &dev_attr_postcode); |
62ec30d4 MG |
675 | } |
676 | ||
b859f159 | 677 | static int hp_wmi_rfkill_setup(struct platform_device *device) |
62ec30d4 MG |
678 | { |
679 | int err; | |
a8ec105c | 680 | int wireless = 0; |
6d96e00c | 681 | |
a8ec105c | 682 | err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, &wireless, |
c3021ea1 | 683 | sizeof(wireless), sizeof(wireless)); |
6d96e00c TR |
684 | if (err) |
685 | return err; | |
62ec30d4 | 686 | |
3f6e2f13 | 687 | if (wireless & 0x1) { |
19d337df JB |
688 | wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev, |
689 | RFKILL_TYPE_WLAN, | |
690 | &hp_wmi_rfkill_ops, | |
e5fbba85 | 691 | (void *) HPWMI_WIFI); |
dd258c00 DC |
692 | if (!wifi_rfkill) |
693 | return -ENOMEM; | |
e5fbba85 AJ |
694 | rfkill_init_sw_state(wifi_rfkill, |
695 | hp_wmi_get_sw_state(HPWMI_WIFI)); | |
696 | rfkill_set_hw_state(wifi_rfkill, | |
697 | hp_wmi_get_hw_state(HPWMI_WIFI)); | |
fe8e4e03 LF |
698 | err = rfkill_register(wifi_rfkill); |
699 | if (err) | |
19d337df | 700 | goto register_wifi_error; |
3f6e2f13 MG |
701 | } |
702 | ||
703 | if (wireless & 0x2) { | |
19d337df JB |
704 | bluetooth_rfkill = rfkill_alloc("hp-bluetooth", &device->dev, |
705 | RFKILL_TYPE_BLUETOOTH, | |
706 | &hp_wmi_rfkill_ops, | |
e5fbba85 | 707 | (void *) HPWMI_BLUETOOTH); |
dd258c00 DC |
708 | if (!bluetooth_rfkill) { |
709 | err = -ENOMEM; | |
710 | goto register_wifi_error; | |
711 | } | |
e5fbba85 AJ |
712 | rfkill_init_sw_state(bluetooth_rfkill, |
713 | hp_wmi_get_sw_state(HPWMI_BLUETOOTH)); | |
714 | rfkill_set_hw_state(bluetooth_rfkill, | |
715 | hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); | |
fe8e4e03 | 716 | err = rfkill_register(bluetooth_rfkill); |
6989d565 | 717 | if (err) |
fe8e4e03 | 718 | goto register_bluetooth_error; |
3f6e2f13 MG |
719 | } |
720 | ||
721 | if (wireless & 0x4) { | |
19d337df JB |
722 | wwan_rfkill = rfkill_alloc("hp-wwan", &device->dev, |
723 | RFKILL_TYPE_WWAN, | |
724 | &hp_wmi_rfkill_ops, | |
e5fbba85 | 725 | (void *) HPWMI_WWAN); |
dd258c00 DC |
726 | if (!wwan_rfkill) { |
727 | err = -ENOMEM; | |
5b5c2b3c | 728 | goto register_bluetooth_error; |
dd258c00 | 729 | } |
e5fbba85 AJ |
730 | rfkill_init_sw_state(wwan_rfkill, |
731 | hp_wmi_get_sw_state(HPWMI_WWAN)); | |
732 | rfkill_set_hw_state(wwan_rfkill, | |
733 | hp_wmi_get_hw_state(HPWMI_WWAN)); | |
fe8e4e03 LF |
734 | err = rfkill_register(wwan_rfkill); |
735 | if (err) | |
5b5c2b3c | 736 | goto register_wwan_error; |
3f6e2f13 | 737 | } |
62ec30d4 | 738 | |
4fca7ce3 TV |
739 | if (wireless & 0x8) { |
740 | gps_rfkill = rfkill_alloc("hp-gps", &device->dev, | |
741 | RFKILL_TYPE_GPS, | |
742 | &hp_wmi_rfkill_ops, | |
743 | (void *) HPWMI_GPS); | |
744 | if (!gps_rfkill) { | |
745 | err = -ENOMEM; | |
5b5c2b3c | 746 | goto register_wwan_error; |
4fca7ce3 TV |
747 | } |
748 | rfkill_init_sw_state(gps_rfkill, | |
749 | hp_wmi_get_sw_state(HPWMI_GPS)); | |
af1d486c | 750 | rfkill_set_hw_state(gps_rfkill, |
4fca7ce3 TV |
751 | hp_wmi_get_hw_state(HPWMI_GPS)); |
752 | err = rfkill_register(gps_rfkill); | |
753 | if (err) | |
754 | goto register_gps_error; | |
755 | } | |
756 | ||
62ec30d4 | 757 | return 0; |
4fca7ce3 TV |
758 | register_gps_error: |
759 | rfkill_destroy(gps_rfkill); | |
760 | gps_rfkill = NULL; | |
44f0606d AM |
761 | if (bluetooth_rfkill) |
762 | rfkill_unregister(bluetooth_rfkill); | |
5b5c2b3c KT |
763 | register_wwan_error: |
764 | rfkill_destroy(wwan_rfkill); | |
765 | wwan_rfkill = NULL; | |
766 | if (gps_rfkill) | |
767 | rfkill_unregister(gps_rfkill); | |
fe8e4e03 | 768 | register_bluetooth_error: |
19d337df | 769 | rfkill_destroy(bluetooth_rfkill); |
6d97db59 | 770 | bluetooth_rfkill = NULL; |
44f0606d AM |
771 | if (wifi_rfkill) |
772 | rfkill_unregister(wifi_rfkill); | |
19d337df JB |
773 | register_wifi_error: |
774 | rfkill_destroy(wifi_rfkill); | |
6d97db59 | 775 | wifi_rfkill = NULL; |
eceb7bdf AH |
776 | return err; |
777 | } | |
778 | ||
b859f159 | 779 | static int hp_wmi_rfkill2_setup(struct platform_device *device) |
c0b9c649 AH |
780 | { |
781 | int err, i; | |
782 | struct bios_rfkill2_state state; | |
783 | err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state, | |
784 | 0, sizeof(state)); | |
785 | if (err) | |
786 | return err; | |
787 | ||
788 | if (state.count > HPWMI_MAX_RFKILL2_DEVICES) { | |
b5a4223c | 789 | pr_warn("unable to parse 0x1b query output\n"); |
c0b9c649 AH |
790 | return -EINVAL; |
791 | } | |
792 | ||
793 | for (i = 0; i < state.count; i++) { | |
794 | struct rfkill *rfkill; | |
795 | enum rfkill_type type; | |
796 | char *name; | |
797 | switch (state.device[i].radio_type) { | |
798 | case HPWMI_WIFI: | |
799 | type = RFKILL_TYPE_WLAN; | |
800 | name = "hp-wifi"; | |
801 | break; | |
802 | case HPWMI_BLUETOOTH: | |
803 | type = RFKILL_TYPE_BLUETOOTH; | |
804 | name = "hp-bluetooth"; | |
805 | break; | |
806 | case HPWMI_WWAN: | |
807 | type = RFKILL_TYPE_WWAN; | |
808 | name = "hp-wwan"; | |
809 | break; | |
4fca7ce3 TV |
810 | case HPWMI_GPS: |
811 | type = RFKILL_TYPE_GPS; | |
812 | name = "hp-gps"; | |
813 | break; | |
c0b9c649 | 814 | default: |
b5a4223c JP |
815 | pr_warn("unknown device type 0x%x\n", |
816 | state.device[i].radio_type); | |
c0b9c649 AH |
817 | continue; |
818 | } | |
819 | ||
820 | if (!state.device[i].vendor_id) { | |
b5a4223c JP |
821 | pr_warn("zero device %d while %d reported\n", |
822 | i, state.count); | |
c0b9c649 AH |
823 | continue; |
824 | } | |
825 | ||
826 | rfkill = rfkill_alloc(name, &device->dev, type, | |
827 | &hp_wmi_rfkill2_ops, (void *)(long)i); | |
828 | if (!rfkill) { | |
829 | err = -ENOMEM; | |
830 | goto fail; | |
831 | } | |
832 | ||
833 | rfkill2[rfkill2_count].id = state.device[i].rfkill_id; | |
834 | rfkill2[rfkill2_count].num = i; | |
835 | rfkill2[rfkill2_count].rfkill = rfkill; | |
836 | ||
837 | rfkill_init_sw_state(rfkill, | |
838 | IS_SWBLOCKED(state.device[i].power)); | |
839 | rfkill_set_hw_state(rfkill, | |
840 | IS_HWBLOCKED(state.device[i].power)); | |
841 | ||
842 | if (!(state.device[i].power & HPWMI_POWER_BIOS)) | |
b5a4223c | 843 | pr_info("device %s blocked by BIOS\n", name); |
c0b9c649 AH |
844 | |
845 | err = rfkill_register(rfkill); | |
846 | if (err) { | |
847 | rfkill_destroy(rfkill); | |
848 | goto fail; | |
849 | } | |
850 | ||
851 | rfkill2_count++; | |
852 | } | |
853 | ||
854 | return 0; | |
855 | fail: | |
856 | for (; rfkill2_count > 0; rfkill2_count--) { | |
857 | rfkill_unregister(rfkill2[rfkill2_count - 1].rfkill); | |
858 | rfkill_destroy(rfkill2[rfkill2_count - 1].rfkill); | |
859 | } | |
860 | return err; | |
861 | } | |
862 | ||
c165b80c | 863 | static int __init hp_wmi_bios_setup(struct platform_device *device) |
eceb7bdf AH |
864 | { |
865 | int err; | |
866 | ||
6d97db59 AH |
867 | /* clear detected rfkill devices */ |
868 | wifi_rfkill = NULL; | |
869 | bluetooth_rfkill = NULL; | |
870 | wwan_rfkill = NULL; | |
4fca7ce3 | 871 | gps_rfkill = NULL; |
c0b9c649 | 872 | rfkill2_count = 0; |
6d97db59 | 873 | |
c0b9c649 AH |
874 | if (hp_wmi_rfkill_setup(device)) |
875 | hp_wmi_rfkill2_setup(device); | |
eceb7bdf AH |
876 | |
877 | err = device_create_file(&device->dev, &dev_attr_display); | |
878 | if (err) | |
879 | goto add_sysfs_error; | |
880 | err = device_create_file(&device->dev, &dev_attr_hddtemp); | |
881 | if (err) | |
882 | goto add_sysfs_error; | |
883 | err = device_create_file(&device->dev, &dev_attr_als); | |
884 | if (err) | |
885 | goto add_sysfs_error; | |
886 | err = device_create_file(&device->dev, &dev_attr_dock); | |
887 | if (err) | |
888 | goto add_sysfs_error; | |
889 | err = device_create_file(&device->dev, &dev_attr_tablet); | |
8667ca95 AH |
890 | if (err) |
891 | goto add_sysfs_error; | |
892 | err = device_create_file(&device->dev, &dev_attr_postcode); | |
eceb7bdf AH |
893 | if (err) |
894 | goto add_sysfs_error; | |
895 | return 0; | |
896 | ||
62ec30d4 MG |
897 | add_sysfs_error: |
898 | cleanup_sysfs(device); | |
899 | return err; | |
900 | } | |
901 | ||
902 | static int __exit hp_wmi_bios_remove(struct platform_device *device) | |
903 | { | |
c0b9c649 | 904 | int i; |
62ec30d4 MG |
905 | cleanup_sysfs(device); |
906 | ||
c0b9c649 AH |
907 | for (i = 0; i < rfkill2_count; i++) { |
908 | rfkill_unregister(rfkill2[i].rfkill); | |
909 | rfkill_destroy(rfkill2[i].rfkill); | |
910 | } | |
911 | ||
19d337df | 912 | if (wifi_rfkill) { |
3f6e2f13 | 913 | rfkill_unregister(wifi_rfkill); |
19d337df JB |
914 | rfkill_destroy(wifi_rfkill); |
915 | } | |
916 | if (bluetooth_rfkill) { | |
3f6e2f13 | 917 | rfkill_unregister(bluetooth_rfkill); |
09729f0b | 918 | rfkill_destroy(bluetooth_rfkill); |
19d337df JB |
919 | } |
920 | if (wwan_rfkill) { | |
3f6e2f13 | 921 | rfkill_unregister(wwan_rfkill); |
19d337df JB |
922 | rfkill_destroy(wwan_rfkill); |
923 | } | |
4fca7ce3 TV |
924 | if (gps_rfkill) { |
925 | rfkill_unregister(gps_rfkill); | |
926 | rfkill_destroy(gps_rfkill); | |
927 | } | |
62ec30d4 MG |
928 | |
929 | return 0; | |
930 | } | |
931 | ||
8dd2b426 | 932 | static int hp_wmi_resume_handler(struct device *device) |
4c395bdd | 933 | { |
4c395bdd | 934 | /* |
871043bc MG |
935 | * Hardware state may have changed while suspended, so trigger |
936 | * input events for the current state. As this is a switch, | |
4c395bdd FP |
937 | * the input layer will only actually pass it on if the state |
938 | * changed. | |
939 | */ | |
daed9537 FP |
940 | if (hp_wmi_input_dev) { |
941 | input_report_switch(hp_wmi_input_dev, SW_DOCK, | |
942 | hp_wmi_dock_state()); | |
943 | input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, | |
944 | hp_wmi_tablet_state()); | |
945 | input_sync(hp_wmi_input_dev); | |
946 | } | |
4c395bdd | 947 | |
c0b9c649 AH |
948 | if (rfkill2_count) |
949 | hp_wmi_rfkill2_refresh(); | |
950 | ||
e5fbba85 AJ |
951 | if (wifi_rfkill) |
952 | rfkill_set_states(wifi_rfkill, | |
953 | hp_wmi_get_sw_state(HPWMI_WIFI), | |
954 | hp_wmi_get_hw_state(HPWMI_WIFI)); | |
955 | if (bluetooth_rfkill) | |
956 | rfkill_set_states(bluetooth_rfkill, | |
957 | hp_wmi_get_sw_state(HPWMI_BLUETOOTH), | |
958 | hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); | |
959 | if (wwan_rfkill) | |
960 | rfkill_set_states(wwan_rfkill, | |
961 | hp_wmi_get_sw_state(HPWMI_WWAN), | |
962 | hp_wmi_get_hw_state(HPWMI_WWAN)); | |
4fca7ce3 TV |
963 | if (gps_rfkill) |
964 | rfkill_set_states(gps_rfkill, | |
965 | hp_wmi_get_sw_state(HPWMI_GPS), | |
966 | hp_wmi_get_hw_state(HPWMI_GPS)); | |
e5fbba85 | 967 | |
4c395bdd FP |
968 | return 0; |
969 | } | |
970 | ||
c165b80c DT |
971 | static const struct dev_pm_ops hp_wmi_pm_ops = { |
972 | .resume = hp_wmi_resume_handler, | |
973 | .restore = hp_wmi_resume_handler, | |
974 | }; | |
975 | ||
976 | static struct platform_driver hp_wmi_driver = { | |
977 | .driver = { | |
978 | .name = "hp-wmi", | |
979 | .owner = THIS_MODULE, | |
980 | .pm = &hp_wmi_pm_ops, | |
981 | }, | |
982 | .remove = __exit_p(hp_wmi_bios_remove), | |
983 | }; | |
984 | ||
62ec30d4 MG |
985 | static int __init hp_wmi_init(void) |
986 | { | |
987 | int err; | |
b096667b TR |
988 | int event_capable = wmi_has_guid(HPWMI_EVENT_GUID); |
989 | int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID); | |
62ec30d4 | 990 | |
c165b80c DT |
991 | if (!bios_capable && !event_capable) |
992 | return -ENODEV; | |
993 | ||
b096667b | 994 | if (event_capable) { |
dfec5c48 | 995 | err = hp_wmi_input_setup(); |
4d291ed7 | 996 | if (err) |
dfec5c48 | 997 | return err; |
62ec30d4 MG |
998 | } |
999 | ||
b096667b | 1000 | if (bios_capable) { |
c165b80c DT |
1001 | hp_wmi_platform_dev = |
1002 | platform_device_register_simple("hp-wmi", -1, NULL, 0); | |
1003 | if (IS_ERR(hp_wmi_platform_dev)) { | |
1004 | err = PTR_ERR(hp_wmi_platform_dev); | |
1005 | goto err_destroy_input; | |
62ec30d4 | 1006 | } |
c165b80c DT |
1007 | |
1008 | err = platform_driver_probe(&hp_wmi_driver, hp_wmi_bios_setup); | |
dfec5c48 | 1009 | if (err) |
c165b80c | 1010 | goto err_unregister_device; |
62ec30d4 MG |
1011 | } |
1012 | ||
1013 | return 0; | |
dfec5c48 | 1014 | |
c165b80c DT |
1015 | err_unregister_device: |
1016 | platform_device_unregister(hp_wmi_platform_dev); | |
1017 | err_destroy_input: | |
4d291ed7 DT |
1018 | if (event_capable) |
1019 | hp_wmi_input_destroy(); | |
dfec5c48 AL |
1020 | |
1021 | return err; | |
62ec30d4 | 1022 | } |
c165b80c | 1023 | module_init(hp_wmi_init); |
62ec30d4 MG |
1024 | |
1025 | static void __exit hp_wmi_exit(void) | |
1026 | { | |
4d291ed7 DT |
1027 | if (wmi_has_guid(HPWMI_EVENT_GUID)) |
1028 | hp_wmi_input_destroy(); | |
1029 | ||
62ec30d4 | 1030 | if (hp_wmi_platform_dev) { |
97ba0af0 | 1031 | platform_device_unregister(hp_wmi_platform_dev); |
62ec30d4 MG |
1032 | platform_driver_unregister(&hp_wmi_driver); |
1033 | } | |
1034 | } | |
62ec30d4 | 1035 | module_exit(hp_wmi_exit); |