Commit | Line | Data |
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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 |
f82bdd0d | 56 | #define HPWMI_BIOS_QUERY 0x9 |
8a1513b4 | 57 | #define HPWMI_FEATURE_QUERY 0xb |
a8823aef | 58 | #define HPWMI_HOTKEY_QUERY 0xc |
8a1513b4 | 59 | #define HPWMI_FEATURE2_QUERY 0xd |
c0b9c649 | 60 | #define HPWMI_WIRELESS2_QUERY 0x1b |
8667ca95 | 61 | #define HPWMI_POSTCODEERROR_QUERY 0x2a |
62ec30d4 | 62 | |
e5fbba85 AJ |
63 | enum hp_wmi_radio { |
64 | HPWMI_WIFI = 0, | |
65 | HPWMI_BLUETOOTH = 1, | |
66 | HPWMI_WWAN = 2, | |
4fca7ce3 | 67 | HPWMI_GPS = 3, |
e5fbba85 AJ |
68 | }; |
69 | ||
751ae808 TR |
70 | enum hp_wmi_event_ids { |
71 | HPWMI_DOCK_EVENT = 1, | |
1bbdfd59 TR |
72 | HPWMI_PARK_HDD = 2, |
73 | HPWMI_SMART_ADAPTER = 3, | |
751ae808 TR |
74 | HPWMI_BEZEL_BUTTON = 4, |
75 | HPWMI_WIRELESS = 5, | |
1bbdfd59 TR |
76 | HPWMI_CPU_BATTERY_THROTTLE = 6, |
77 | HPWMI_LOCK_SWITCH = 7, | |
d9e290a0 AH |
78 | HPWMI_LID_SWITCH = 8, |
79 | HPWMI_SCREEN_ROTATION = 9, | |
80 | HPWMI_COOLSENSE_SYSTEM_MOBILE = 0x0A, | |
81 | HPWMI_COOLSENSE_SYSTEM_HOT = 0x0B, | |
82 | HPWMI_PROXIMITY_SENSOR = 0x0C, | |
83 | HPWMI_BACKLIT_KB_BRIGHTNESS = 0x0D, | |
84 | HPWMI_PEAKSHIFT_PERIOD = 0x0F, | |
85 | HPWMI_BATTERY_CHARGE_PERIOD = 0x10, | |
751ae808 TR |
86 | }; |
87 | ||
62ec30d4 MG |
88 | struct bios_args { |
89 | u32 signature; | |
90 | u32 command; | |
91 | u32 commandtype; | |
92 | u32 datasize; | |
a8ec105c | 93 | u32 data; |
62ec30d4 MG |
94 | }; |
95 | ||
96 | struct bios_return { | |
97 | u32 sigpass; | |
98 | u32 return_code; | |
62ec30d4 MG |
99 | }; |
100 | ||
9af0e0fb AH |
101 | enum hp_return_value { |
102 | HPWMI_RET_WRONG_SIGNATURE = 0x02, | |
103 | HPWMI_RET_UNKNOWN_COMMAND = 0x03, | |
104 | HPWMI_RET_UNKNOWN_CMDTYPE = 0x04, | |
105 | HPWMI_RET_INVALID_PARAMETERS = 0x05, | |
106 | }; | |
107 | ||
c0b9c649 AH |
108 | enum hp_wireless2_bits { |
109 | HPWMI_POWER_STATE = 0x01, | |
110 | HPWMI_POWER_SOFT = 0x02, | |
111 | HPWMI_POWER_BIOS = 0x04, | |
112 | HPWMI_POWER_HARD = 0x08, | |
113 | }; | |
114 | ||
115 | #define IS_HWBLOCKED(x) ((x & (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) \ | |
116 | != (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) | |
117 | #define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT) | |
118 | ||
119 | struct bios_rfkill2_device_state { | |
120 | u8 radio_type; | |
121 | u8 bus_type; | |
122 | u16 vendor_id; | |
123 | u16 product_id; | |
124 | u16 subsys_vendor_id; | |
125 | u16 subsys_product_id; | |
126 | u8 rfkill_id; | |
127 | u8 power; | |
128 | u8 unknown[4]; | |
129 | }; | |
130 | ||
131 | /* 7 devices fit into the 128 byte buffer */ | |
132 | #define HPWMI_MAX_RFKILL2_DEVICES 7 | |
133 | ||
134 | struct bios_rfkill2_state { | |
135 | u8 unknown[7]; | |
136 | u8 count; | |
137 | u8 pad[8]; | |
138 | struct bios_rfkill2_device_state device[HPWMI_MAX_RFKILL2_DEVICES]; | |
139 | }; | |
140 | ||
4d291ed7 DT |
141 | static const struct key_entry hp_wmi_keymap[] = { |
142 | { KE_KEY, 0x02, { KEY_BRIGHTNESSUP } }, | |
143 | { KE_KEY, 0x03, { KEY_BRIGHTNESSDOWN } }, | |
144 | { KE_KEY, 0x20e6, { KEY_PROG1 } }, | |
145 | { KE_KEY, 0x20e8, { KEY_MEDIA } }, | |
146 | { KE_KEY, 0x2142, { KEY_MEDIA } }, | |
147 | { KE_KEY, 0x213b, { KEY_INFO } }, | |
e92865ed | 148 | { KE_KEY, 0x2169, { KEY_ROTATE_DISPLAY } }, |
f82bdd0d | 149 | { KE_KEY, 0x216a, { KEY_SETUP } }, |
4d291ed7 DT |
150 | { KE_KEY, 0x231b, { KEY_HELP } }, |
151 | { KE_END, 0 } | |
62ec30d4 MG |
152 | }; |
153 | ||
154 | static struct input_dev *hp_wmi_input_dev; | |
155 | static struct platform_device *hp_wmi_platform_dev; | |
156 | ||
157 | static struct rfkill *wifi_rfkill; | |
158 | static struct rfkill *bluetooth_rfkill; | |
159 | static struct rfkill *wwan_rfkill; | |
160 | ||
c0b9c649 AH |
161 | struct rfkill2_device { |
162 | u8 id; | |
163 | int num; | |
164 | struct rfkill *rfkill; | |
165 | }; | |
166 | ||
167 | static int rfkill2_count; | |
168 | static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES]; | |
169 | ||
6d96e00c TR |
170 | /* |
171 | * hp_wmi_perform_query | |
172 | * | |
173 | * query: The commandtype -> What should be queried | |
174 | * write: The command -> 0 read, 1 write, 3 ODM specific | |
175 | * buffer: Buffer used as input and/or output | |
c3021ea1 AH |
176 | * insize: Size of input buffer |
177 | * outsize: Size of output buffer | |
6d96e00c TR |
178 | * |
179 | * returns zero on success | |
180 | * an HP WMI query specific error code (which is positive) | |
181 | * -EINVAL if the query was not successful at all | |
182 | * -EINVAL if the output buffer size exceeds buffersize | |
183 | * | |
184 | * Note: The buffersize must at least be the maximum of the input and output | |
185 | * size. E.g. Battery info query (0x7) is defined to have 1 byte input | |
186 | * and 128 byte output. The caller would do: | |
187 | * buffer = kzalloc(128, GFP_KERNEL); | |
c3021ea1 | 188 | * ret = hp_wmi_perform_query(0x7, 0, buffer, 1, 128) |
6d96e00c | 189 | */ |
c3021ea1 AH |
190 | static int hp_wmi_perform_query(int query, int write, void *buffer, |
191 | int insize, int outsize) | |
62ec30d4 | 192 | { |
c3021ea1 AH |
193 | struct bios_return *bios_return; |
194 | int actual_outsize; | |
62ec30d4 MG |
195 | union acpi_object *obj; |
196 | struct bios_args args = { | |
197 | .signature = 0x55434553, | |
198 | .command = write ? 0x2 : 0x1, | |
199 | .commandtype = query, | |
c3021ea1 AH |
200 | .datasize = insize, |
201 | .data = 0, | |
62ec30d4 MG |
202 | }; |
203 | struct acpi_buffer input = { sizeof(struct bios_args), &args }; | |
204 | struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; | |
0401846c | 205 | u32 rc; |
62ec30d4 | 206 | |
c3021ea1 AH |
207 | if (WARN_ON(insize > sizeof(args.data))) |
208 | return -EINVAL; | |
209 | memcpy(&args.data, buffer, insize); | |
210 | ||
25bb067a | 211 | wmi_evaluate_method(HPWMI_BIOS_GUID, 0, 0x3, &input, &output); |
62ec30d4 MG |
212 | |
213 | obj = output.pointer; | |
214 | ||
44ef00e6 | 215 | if (!obj) |
62ec30d4 | 216 | return -EINVAL; |
44ef00e6 TR |
217 | else if (obj->type != ACPI_TYPE_BUFFER) { |
218 | kfree(obj); | |
219 | return -EINVAL; | |
220 | } | |
62ec30d4 | 221 | |
c3021ea1 | 222 | bios_return = (struct bios_return *)obj->buffer.pointer; |
0401846c | 223 | rc = bios_return->return_code; |
6d96e00c | 224 | |
0401846c ED |
225 | if (rc) { |
226 | if (rc != HPWMI_RET_UNKNOWN_CMDTYPE) | |
227 | pr_warn("query 0x%x returned error 0x%x\n", query, rc); | |
9af0e0fb | 228 | kfree(obj); |
0401846c | 229 | return rc; |
9af0e0fb AH |
230 | } |
231 | ||
c3021ea1 AH |
232 | if (!outsize) { |
233 | /* ignore output data */ | |
234 | kfree(obj); | |
235 | return 0; | |
236 | } | |
53c96dfd | 237 | |
c3021ea1 AH |
238 | actual_outsize = min(outsize, (int)(obj->buffer.length - sizeof(*bios_return))); |
239 | memcpy(buffer, obj->buffer.pointer + sizeof(*bios_return), actual_outsize); | |
240 | memset(buffer + actual_outsize, 0, outsize - actual_outsize); | |
53c96dfd | 241 | kfree(obj); |
6d96e00c | 242 | return 0; |
62ec30d4 MG |
243 | } |
244 | ||
245 | static int hp_wmi_display_state(void) | |
246 | { | |
a8ec105c MG |
247 | int state = 0; |
248 | int ret = hp_wmi_perform_query(HPWMI_DISPLAY_QUERY, 0, &state, | |
c3021ea1 | 249 | sizeof(state), sizeof(state)); |
6d96e00c TR |
250 | if (ret) |
251 | return -EINVAL; | |
252 | return state; | |
62ec30d4 MG |
253 | } |
254 | ||
255 | static int hp_wmi_hddtemp_state(void) | |
256 | { | |
a8ec105c MG |
257 | int state = 0; |
258 | int ret = hp_wmi_perform_query(HPWMI_HDDTEMP_QUERY, 0, &state, | |
c3021ea1 | 259 | sizeof(state), sizeof(state)); |
6d96e00c TR |
260 | if (ret) |
261 | return -EINVAL; | |
262 | return state; | |
62ec30d4 MG |
263 | } |
264 | ||
265 | static int hp_wmi_als_state(void) | |
266 | { | |
a8ec105c MG |
267 | int state = 0; |
268 | int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 0, &state, | |
c3021ea1 | 269 | sizeof(state), sizeof(state)); |
6d96e00c TR |
270 | if (ret) |
271 | return -EINVAL; | |
272 | return state; | |
62ec30d4 MG |
273 | } |
274 | ||
275 | static int hp_wmi_dock_state(void) | |
276 | { | |
a8ec105c MG |
277 | int state = 0; |
278 | int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state, | |
c3021ea1 | 279 | sizeof(state), sizeof(state)); |
62ec30d4 | 280 | |
6d96e00c TR |
281 | if (ret) |
282 | return -EINVAL; | |
871043bc | 283 | |
6d96e00c | 284 | return state & 0x1; |
62ec30d4 MG |
285 | } |
286 | ||
871043bc | 287 | static int hp_wmi_tablet_state(void) |
62ec30d4 | 288 | { |
a8ec105c MG |
289 | int state = 0; |
290 | int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state, | |
c3021ea1 | 291 | sizeof(state), sizeof(state)); |
6d96e00c | 292 | if (ret) |
871043bc MG |
293 | return ret; |
294 | ||
6d96e00c | 295 | return (state & 0x4) ? 1 : 0; |
62ec30d4 MG |
296 | } |
297 | ||
8a1513b4 | 298 | static int __init hp_wmi_bios_2008_later(void) |
997daa1b AH |
299 | { |
300 | int state = 0; | |
301 | int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, 0, &state, | |
302 | sizeof(state), sizeof(state)); | |
8a1513b4 KE |
303 | if (!ret) |
304 | return 1; | |
997daa1b | 305 | |
8a1513b4 | 306 | return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO; |
997daa1b AH |
307 | } |
308 | ||
8a1513b4 | 309 | static int __init hp_wmi_bios_2009_later(void) |
f82bdd0d | 310 | { |
8a1513b4 KE |
311 | int state = 0; |
312 | int ret = hp_wmi_perform_query(HPWMI_FEATURE2_QUERY, 0, &state, | |
313 | sizeof(state), sizeof(state)); | |
314 | if (!ret) | |
315 | return 1; | |
f82bdd0d | 316 | |
8a1513b4 KE |
317 | return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO; |
318 | } | |
f82bdd0d | 319 | |
8a1513b4 KE |
320 | static int __init hp_wmi_enable_hotkeys(void) |
321 | { | |
322 | int value = 0x6e; | |
323 | int ret = hp_wmi_perform_query(HPWMI_BIOS_QUERY, 1, &value, | |
324 | sizeof(value), 0); | |
f82bdd0d KE |
325 | if (ret) |
326 | return -EINVAL; | |
327 | return 0; | |
328 | } | |
329 | ||
19d337df | 330 | static int hp_wmi_set_block(void *data, bool blocked) |
62ec30d4 | 331 | { |
e5fbba85 AJ |
332 | enum hp_wmi_radio r = (enum hp_wmi_radio) data; |
333 | int query = BIT(r + 8) | ((!blocked) << r); | |
6d96e00c | 334 | int ret; |
62ec30d4 | 335 | |
6d96e00c | 336 | ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, |
c3021ea1 | 337 | &query, sizeof(query), 0); |
6d96e00c TR |
338 | if (ret) |
339 | return -EINVAL; | |
340 | return 0; | |
62ec30d4 MG |
341 | } |
342 | ||
19d337df JB |
343 | static const struct rfkill_ops hp_wmi_rfkill_ops = { |
344 | .set_block = hp_wmi_set_block, | |
345 | }; | |
62ec30d4 | 346 | |
e5fbba85 | 347 | static bool hp_wmi_get_sw_state(enum hp_wmi_radio r) |
62ec30d4 | 348 | { |
a8ec105c | 349 | int wireless = 0; |
6d96e00c TR |
350 | int mask; |
351 | hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, | |
c3021ea1 AH |
352 | &wireless, sizeof(wireless), |
353 | sizeof(wireless)); | |
6d96e00c TR |
354 | /* TBD: Pass error */ |
355 | ||
356 | mask = 0x200 << (r * 8); | |
62ec30d4 | 357 | |
e5fbba85 | 358 | if (wireless & mask) |
19d337df | 359 | return false; |
62ec30d4 | 360 | else |
19d337df | 361 | return true; |
62ec30d4 MG |
362 | } |
363 | ||
e5fbba85 | 364 | static bool hp_wmi_get_hw_state(enum hp_wmi_radio r) |
62ec30d4 | 365 | { |
a8ec105c | 366 | int wireless = 0; |
6d96e00c TR |
367 | int mask; |
368 | hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, | |
c3021ea1 AH |
369 | &wireless, sizeof(wireless), |
370 | sizeof(wireless)); | |
6d96e00c TR |
371 | /* TBD: Pass error */ |
372 | ||
373 | mask = 0x800 << (r * 8); | |
62ec30d4 | 374 | |
e5fbba85 | 375 | if (wireless & mask) |
19d337df | 376 | return false; |
62ec30d4 | 377 | else |
19d337df | 378 | return true; |
62ec30d4 MG |
379 | } |
380 | ||
c0b9c649 AH |
381 | static int hp_wmi_rfkill2_set_block(void *data, bool blocked) |
382 | { | |
383 | int rfkill_id = (int)(long)data; | |
384 | char buffer[4] = { 0x01, 0x00, rfkill_id, !blocked }; | |
385 | ||
386 | if (hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 1, | |
387 | buffer, sizeof(buffer), 0)) | |
388 | return -EINVAL; | |
389 | return 0; | |
390 | } | |
391 | ||
392 | static const struct rfkill_ops hp_wmi_rfkill2_ops = { | |
393 | .set_block = hp_wmi_rfkill2_set_block, | |
394 | }; | |
395 | ||
396 | static int hp_wmi_rfkill2_refresh(void) | |
397 | { | |
398 | int err, i; | |
399 | struct bios_rfkill2_state state; | |
400 | ||
401 | err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state, | |
402 | 0, sizeof(state)); | |
403 | if (err) | |
404 | return err; | |
405 | ||
406 | for (i = 0; i < rfkill2_count; i++) { | |
407 | int num = rfkill2[i].num; | |
408 | struct bios_rfkill2_device_state *devstate; | |
409 | devstate = &state.device[num]; | |
410 | ||
411 | if (num >= state.count || | |
412 | devstate->rfkill_id != rfkill2[i].id) { | |
b5a4223c | 413 | pr_warn("power configuration of the wireless devices unexpectedly changed\n"); |
c0b9c649 AH |
414 | continue; |
415 | } | |
416 | ||
417 | rfkill_set_states(rfkill2[i].rfkill, | |
418 | IS_SWBLOCKED(devstate->power), | |
419 | IS_HWBLOCKED(devstate->power)); | |
420 | } | |
421 | ||
422 | return 0; | |
423 | } | |
424 | ||
8667ca95 AH |
425 | static int hp_wmi_post_code_state(void) |
426 | { | |
427 | int state = 0; | |
428 | int ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, 0, &state, | |
429 | sizeof(state), sizeof(state)); | |
430 | if (ret) | |
431 | return -EINVAL; | |
432 | return state; | |
433 | } | |
434 | ||
62ec30d4 MG |
435 | static ssize_t show_display(struct device *dev, struct device_attribute *attr, |
436 | char *buf) | |
437 | { | |
438 | int value = hp_wmi_display_state(); | |
439 | if (value < 0) | |
440 | return -EINVAL; | |
441 | return sprintf(buf, "%d\n", value); | |
442 | } | |
443 | ||
444 | static ssize_t show_hddtemp(struct device *dev, struct device_attribute *attr, | |
445 | char *buf) | |
446 | { | |
447 | int value = hp_wmi_hddtemp_state(); | |
448 | if (value < 0) | |
449 | return -EINVAL; | |
450 | return sprintf(buf, "%d\n", value); | |
451 | } | |
452 | ||
453 | static ssize_t show_als(struct device *dev, struct device_attribute *attr, | |
454 | char *buf) | |
455 | { | |
456 | int value = hp_wmi_als_state(); | |
457 | if (value < 0) | |
458 | return -EINVAL; | |
459 | return sprintf(buf, "%d\n", value); | |
460 | } | |
461 | ||
462 | static ssize_t show_dock(struct device *dev, struct device_attribute *attr, | |
463 | char *buf) | |
464 | { | |
465 | int value = hp_wmi_dock_state(); | |
466 | if (value < 0) | |
467 | return -EINVAL; | |
468 | return sprintf(buf, "%d\n", value); | |
469 | } | |
470 | ||
871043bc MG |
471 | static ssize_t show_tablet(struct device *dev, struct device_attribute *attr, |
472 | char *buf) | |
473 | { | |
474 | int value = hp_wmi_tablet_state(); | |
475 | if (value < 0) | |
476 | return -EINVAL; | |
477 | return sprintf(buf, "%d\n", value); | |
478 | } | |
479 | ||
8667ca95 AH |
480 | static ssize_t show_postcode(struct device *dev, struct device_attribute *attr, |
481 | char *buf) | |
482 | { | |
483 | /* Get the POST error code of previous boot failure. */ | |
484 | int value = hp_wmi_post_code_state(); | |
485 | if (value < 0) | |
486 | return -EINVAL; | |
487 | return sprintf(buf, "0x%x\n", value); | |
488 | } | |
489 | ||
62ec30d4 MG |
490 | static ssize_t set_als(struct device *dev, struct device_attribute *attr, |
491 | const char *buf, size_t count) | |
492 | { | |
493 | u32 tmp = simple_strtoul(buf, NULL, 10); | |
a8ec105c | 494 | int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 1, &tmp, |
c3021ea1 | 495 | sizeof(tmp), sizeof(tmp)); |
6d96e00c TR |
496 | if (ret) |
497 | return -EINVAL; | |
498 | ||
62ec30d4 MG |
499 | return count; |
500 | } | |
501 | ||
8667ca95 AH |
502 | static ssize_t set_postcode(struct device *dev, struct device_attribute *attr, |
503 | const char *buf, size_t count) | |
504 | { | |
505 | int ret; | |
506 | u32 tmp; | |
507 | long unsigned int tmp2; | |
508 | ||
509 | ret = kstrtoul(buf, 10, &tmp2); | |
510 | if (ret || tmp2 != 1) | |
511 | return -EINVAL; | |
512 | ||
513 | /* Clear the POST error code. It is kept until until cleared. */ | |
514 | tmp = (u32) tmp2; | |
515 | ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, 1, &tmp, | |
516 | sizeof(tmp), sizeof(tmp)); | |
517 | if (ret) | |
518 | return -EINVAL; | |
519 | ||
520 | return count; | |
521 | } | |
522 | ||
62ec30d4 MG |
523 | static DEVICE_ATTR(display, S_IRUGO, show_display, NULL); |
524 | static DEVICE_ATTR(hddtemp, S_IRUGO, show_hddtemp, NULL); | |
525 | static DEVICE_ATTR(als, S_IRUGO | S_IWUSR, show_als, set_als); | |
526 | static DEVICE_ATTR(dock, S_IRUGO, show_dock, NULL); | |
871043bc | 527 | static DEVICE_ATTR(tablet, S_IRUGO, show_tablet, NULL); |
8667ca95 | 528 | static DEVICE_ATTR(postcode, S_IRUGO | S_IWUSR, show_postcode, set_postcode); |
62ec30d4 | 529 | |
88429a10 | 530 | static void hp_wmi_notify(u32 value, void *context) |
62ec30d4 MG |
531 | { |
532 | struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; | |
62ec30d4 | 533 | union acpi_object *obj; |
8dda6b04 | 534 | u32 event_id, event_data; |
a8ec105c | 535 | int key_code = 0, ret; |
8dda6b04 | 536 | u32 *location; |
fda11e61 | 537 | acpi_status status; |
62ec30d4 | 538 | |
fda11e61 LB |
539 | status = wmi_get_event_data(value, &response); |
540 | if (status != AE_OK) { | |
b5a4223c | 541 | pr_info("bad event status 0x%x\n", status); |
fda11e61 LB |
542 | return; |
543 | } | |
62ec30d4 MG |
544 | |
545 | obj = (union acpi_object *)response.pointer; | |
546 | ||
c4775062 TR |
547 | if (!obj) |
548 | return; | |
549 | if (obj->type != ACPI_TYPE_BUFFER) { | |
b5a4223c | 550 | pr_info("Unknown response received %d\n", obj->type); |
44ef00e6 | 551 | kfree(obj); |
e5fbba85 AJ |
552 | return; |
553 | } | |
554 | ||
8dda6b04 TR |
555 | /* |
556 | * Depending on ACPI version the concatenation of id and event data | |
557 | * inside _WED function will result in a 8 or 16 byte buffer. | |
558 | */ | |
559 | location = (u32 *)obj->buffer.pointer; | |
560 | if (obj->buffer.length == 8) { | |
561 | event_id = *location; | |
562 | event_data = *(location + 1); | |
563 | } else if (obj->buffer.length == 16) { | |
564 | event_id = *location; | |
565 | event_data = *(location + 2); | |
566 | } else { | |
b5a4223c | 567 | pr_info("Unknown buffer length %d\n", obj->buffer.length); |
8dda6b04 TR |
568 | kfree(obj); |
569 | return; | |
570 | } | |
44ef00e6 | 571 | kfree(obj); |
8dda6b04 TR |
572 | |
573 | switch (event_id) { | |
751ae808 | 574 | case HPWMI_DOCK_EVENT: |
e5fbba85 AJ |
575 | input_report_switch(hp_wmi_input_dev, SW_DOCK, |
576 | hp_wmi_dock_state()); | |
577 | input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, | |
578 | hp_wmi_tablet_state()); | |
579 | input_sync(hp_wmi_input_dev); | |
751ae808 | 580 | break; |
1bbdfd59 TR |
581 | case HPWMI_PARK_HDD: |
582 | break; | |
583 | case HPWMI_SMART_ADAPTER: | |
584 | break; | |
751ae808 | 585 | case HPWMI_BEZEL_BUTTON: |
6d96e00c | 586 | ret = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0, |
a8ec105c | 587 | &key_code, |
c3021ea1 | 588 | sizeof(key_code), |
6d96e00c TR |
589 | sizeof(key_code)); |
590 | if (ret) | |
591 | break; | |
4d291ed7 DT |
592 | |
593 | if (!sparse_keymap_report_event(hp_wmi_input_dev, | |
594 | key_code, 1, true)) | |
b5a4223c | 595 | pr_info("Unknown key code - 0x%x\n", key_code); |
751ae808 TR |
596 | break; |
597 | case HPWMI_WIRELESS: | |
c0b9c649 AH |
598 | if (rfkill2_count) { |
599 | hp_wmi_rfkill2_refresh(); | |
600 | break; | |
601 | } | |
602 | ||
e5fbba85 AJ |
603 | if (wifi_rfkill) |
604 | rfkill_set_states(wifi_rfkill, | |
605 | hp_wmi_get_sw_state(HPWMI_WIFI), | |
606 | hp_wmi_get_hw_state(HPWMI_WIFI)); | |
607 | if (bluetooth_rfkill) | |
608 | rfkill_set_states(bluetooth_rfkill, | |
609 | hp_wmi_get_sw_state(HPWMI_BLUETOOTH), | |
610 | hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); | |
611 | if (wwan_rfkill) | |
612 | rfkill_set_states(wwan_rfkill, | |
613 | hp_wmi_get_sw_state(HPWMI_WWAN), | |
614 | hp_wmi_get_hw_state(HPWMI_WWAN)); | |
751ae808 | 615 | break; |
1bbdfd59 | 616 | case HPWMI_CPU_BATTERY_THROTTLE: |
b5a4223c | 617 | pr_info("Unimplemented CPU throttle because of 3 Cell battery event detected\n"); |
1bbdfd59 TR |
618 | break; |
619 | case HPWMI_LOCK_SWITCH: | |
620 | break; | |
d9e290a0 AH |
621 | case HPWMI_LID_SWITCH: |
622 | break; | |
623 | case HPWMI_SCREEN_ROTATION: | |
624 | break; | |
625 | case HPWMI_COOLSENSE_SYSTEM_MOBILE: | |
626 | break; | |
627 | case HPWMI_COOLSENSE_SYSTEM_HOT: | |
628 | break; | |
629 | case HPWMI_PROXIMITY_SENSOR: | |
630 | break; | |
631 | case HPWMI_BACKLIT_KB_BRIGHTNESS: | |
632 | break; | |
633 | case HPWMI_PEAKSHIFT_PERIOD: | |
634 | break; | |
635 | case HPWMI_BATTERY_CHARGE_PERIOD: | |
636 | break; | |
751ae808 | 637 | default: |
b5a4223c | 638 | pr_info("Unknown event_id - %d - 0x%x\n", event_id, event_data); |
751ae808 TR |
639 | break; |
640 | } | |
62ec30d4 MG |
641 | } |
642 | ||
643 | static int __init hp_wmi_input_setup(void) | |
644 | { | |
4d291ed7 | 645 | acpi_status status; |
62ec30d4 MG |
646 | int err; |
647 | ||
648 | hp_wmi_input_dev = input_allocate_device(); | |
bc28596a AL |
649 | if (!hp_wmi_input_dev) |
650 | return -ENOMEM; | |
62ec30d4 MG |
651 | |
652 | hp_wmi_input_dev->name = "HP WMI hotkeys"; | |
653 | hp_wmi_input_dev->phys = "wmi/input0"; | |
654 | hp_wmi_input_dev->id.bustype = BUS_HOST; | |
62ec30d4 | 655 | |
4d291ed7 DT |
656 | __set_bit(EV_SW, hp_wmi_input_dev->evbit); |
657 | __set_bit(SW_DOCK, hp_wmi_input_dev->swbit); | |
658 | __set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit); | |
659 | ||
660 | err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL); | |
661 | if (err) | |
662 | goto err_free_dev; | |
871043bc MG |
663 | |
664 | /* Set initial hardware state */ | |
665 | input_report_switch(hp_wmi_input_dev, SW_DOCK, hp_wmi_dock_state()); | |
666 | input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, | |
667 | hp_wmi_tablet_state()); | |
668 | input_sync(hp_wmi_input_dev); | |
669 | ||
8a1513b4 | 670 | if (!hp_wmi_bios_2009_later() && hp_wmi_bios_2008_later()) |
f82bdd0d KE |
671 | hp_wmi_enable_hotkeys(); |
672 | ||
4d291ed7 DT |
673 | status = wmi_install_notify_handler(HPWMI_EVENT_GUID, hp_wmi_notify, NULL); |
674 | if (ACPI_FAILURE(status)) { | |
675 | err = -EIO; | |
676 | goto err_free_keymap; | |
62ec30d4 MG |
677 | } |
678 | ||
4d291ed7 DT |
679 | err = input_register_device(hp_wmi_input_dev); |
680 | if (err) | |
681 | goto err_uninstall_notifier; | |
682 | ||
62ec30d4 | 683 | return 0; |
4d291ed7 DT |
684 | |
685 | err_uninstall_notifier: | |
686 | wmi_remove_notify_handler(HPWMI_EVENT_GUID); | |
687 | err_free_keymap: | |
688 | sparse_keymap_free(hp_wmi_input_dev); | |
689 | err_free_dev: | |
690 | input_free_device(hp_wmi_input_dev); | |
691 | return err; | |
692 | } | |
693 | ||
694 | static void hp_wmi_input_destroy(void) | |
695 | { | |
696 | wmi_remove_notify_handler(HPWMI_EVENT_GUID); | |
697 | sparse_keymap_free(hp_wmi_input_dev); | |
698 | input_unregister_device(hp_wmi_input_dev); | |
62ec30d4 MG |
699 | } |
700 | ||
701 | static void cleanup_sysfs(struct platform_device *device) | |
702 | { | |
703 | device_remove_file(&device->dev, &dev_attr_display); | |
704 | device_remove_file(&device->dev, &dev_attr_hddtemp); | |
705 | device_remove_file(&device->dev, &dev_attr_als); | |
706 | device_remove_file(&device->dev, &dev_attr_dock); | |
871043bc | 707 | device_remove_file(&device->dev, &dev_attr_tablet); |
8667ca95 | 708 | device_remove_file(&device->dev, &dev_attr_postcode); |
62ec30d4 MG |
709 | } |
710 | ||
702ef542 | 711 | static int __init hp_wmi_rfkill_setup(struct platform_device *device) |
62ec30d4 MG |
712 | { |
713 | int err; | |
a8ec105c | 714 | int wireless = 0; |
6d96e00c | 715 | |
a8ec105c | 716 | err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, &wireless, |
c3021ea1 | 717 | sizeof(wireless), sizeof(wireless)); |
6d96e00c TR |
718 | if (err) |
719 | return err; | |
62ec30d4 | 720 | |
3f6e2f13 | 721 | if (wireless & 0x1) { |
19d337df JB |
722 | wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev, |
723 | RFKILL_TYPE_WLAN, | |
724 | &hp_wmi_rfkill_ops, | |
e5fbba85 | 725 | (void *) HPWMI_WIFI); |
dd258c00 DC |
726 | if (!wifi_rfkill) |
727 | return -ENOMEM; | |
e5fbba85 AJ |
728 | rfkill_init_sw_state(wifi_rfkill, |
729 | hp_wmi_get_sw_state(HPWMI_WIFI)); | |
730 | rfkill_set_hw_state(wifi_rfkill, | |
731 | hp_wmi_get_hw_state(HPWMI_WIFI)); | |
fe8e4e03 LF |
732 | err = rfkill_register(wifi_rfkill); |
733 | if (err) | |
19d337df | 734 | goto register_wifi_error; |
3f6e2f13 MG |
735 | } |
736 | ||
737 | if (wireless & 0x2) { | |
19d337df JB |
738 | bluetooth_rfkill = rfkill_alloc("hp-bluetooth", &device->dev, |
739 | RFKILL_TYPE_BLUETOOTH, | |
740 | &hp_wmi_rfkill_ops, | |
e5fbba85 | 741 | (void *) HPWMI_BLUETOOTH); |
dd258c00 DC |
742 | if (!bluetooth_rfkill) { |
743 | err = -ENOMEM; | |
c7805e54 | 744 | goto register_bluetooth_error; |
dd258c00 | 745 | } |
e5fbba85 AJ |
746 | rfkill_init_sw_state(bluetooth_rfkill, |
747 | hp_wmi_get_sw_state(HPWMI_BLUETOOTH)); | |
748 | rfkill_set_hw_state(bluetooth_rfkill, | |
749 | hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); | |
fe8e4e03 | 750 | err = rfkill_register(bluetooth_rfkill); |
6989d565 | 751 | if (err) |
fe8e4e03 | 752 | goto register_bluetooth_error; |
3f6e2f13 MG |
753 | } |
754 | ||
755 | if (wireless & 0x4) { | |
19d337df JB |
756 | wwan_rfkill = rfkill_alloc("hp-wwan", &device->dev, |
757 | RFKILL_TYPE_WWAN, | |
758 | &hp_wmi_rfkill_ops, | |
e5fbba85 | 759 | (void *) HPWMI_WWAN); |
dd258c00 DC |
760 | if (!wwan_rfkill) { |
761 | err = -ENOMEM; | |
c7805e54 | 762 | goto register_wwan_error; |
dd258c00 | 763 | } |
e5fbba85 AJ |
764 | rfkill_init_sw_state(wwan_rfkill, |
765 | hp_wmi_get_sw_state(HPWMI_WWAN)); | |
766 | rfkill_set_hw_state(wwan_rfkill, | |
767 | hp_wmi_get_hw_state(HPWMI_WWAN)); | |
fe8e4e03 LF |
768 | err = rfkill_register(wwan_rfkill); |
769 | if (err) | |
5b5c2b3c | 770 | goto register_wwan_error; |
3f6e2f13 | 771 | } |
62ec30d4 MG |
772 | |
773 | return 0; | |
fffcad87 | 774 | |
5b5c2b3c KT |
775 | register_wwan_error: |
776 | rfkill_destroy(wwan_rfkill); | |
777 | wwan_rfkill = NULL; | |
c7805e54 MS |
778 | if (bluetooth_rfkill) |
779 | rfkill_unregister(bluetooth_rfkill); | |
fe8e4e03 | 780 | register_bluetooth_error: |
19d337df | 781 | rfkill_destroy(bluetooth_rfkill); |
6d97db59 | 782 | bluetooth_rfkill = NULL; |
44f0606d AM |
783 | if (wifi_rfkill) |
784 | rfkill_unregister(wifi_rfkill); | |
19d337df JB |
785 | register_wifi_error: |
786 | rfkill_destroy(wifi_rfkill); | |
6d97db59 | 787 | wifi_rfkill = NULL; |
eceb7bdf AH |
788 | return err; |
789 | } | |
790 | ||
702ef542 | 791 | static int __init hp_wmi_rfkill2_setup(struct platform_device *device) |
c0b9c649 AH |
792 | { |
793 | int err, i; | |
794 | struct bios_rfkill2_state state; | |
795 | err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state, | |
796 | 0, sizeof(state)); | |
797 | if (err) | |
798 | return err; | |
799 | ||
800 | if (state.count > HPWMI_MAX_RFKILL2_DEVICES) { | |
b5a4223c | 801 | pr_warn("unable to parse 0x1b query output\n"); |
c0b9c649 AH |
802 | return -EINVAL; |
803 | } | |
804 | ||
805 | for (i = 0; i < state.count; i++) { | |
806 | struct rfkill *rfkill; | |
807 | enum rfkill_type type; | |
808 | char *name; | |
809 | switch (state.device[i].radio_type) { | |
810 | case HPWMI_WIFI: | |
811 | type = RFKILL_TYPE_WLAN; | |
812 | name = "hp-wifi"; | |
813 | break; | |
814 | case HPWMI_BLUETOOTH: | |
815 | type = RFKILL_TYPE_BLUETOOTH; | |
816 | name = "hp-bluetooth"; | |
817 | break; | |
818 | case HPWMI_WWAN: | |
819 | type = RFKILL_TYPE_WWAN; | |
820 | name = "hp-wwan"; | |
821 | break; | |
4fca7ce3 TV |
822 | case HPWMI_GPS: |
823 | type = RFKILL_TYPE_GPS; | |
824 | name = "hp-gps"; | |
825 | break; | |
c0b9c649 | 826 | default: |
b5a4223c JP |
827 | pr_warn("unknown device type 0x%x\n", |
828 | state.device[i].radio_type); | |
c0b9c649 AH |
829 | continue; |
830 | } | |
831 | ||
832 | if (!state.device[i].vendor_id) { | |
b5a4223c JP |
833 | pr_warn("zero device %d while %d reported\n", |
834 | i, state.count); | |
c0b9c649 AH |
835 | continue; |
836 | } | |
837 | ||
838 | rfkill = rfkill_alloc(name, &device->dev, type, | |
839 | &hp_wmi_rfkill2_ops, (void *)(long)i); | |
840 | if (!rfkill) { | |
841 | err = -ENOMEM; | |
842 | goto fail; | |
843 | } | |
844 | ||
845 | rfkill2[rfkill2_count].id = state.device[i].rfkill_id; | |
846 | rfkill2[rfkill2_count].num = i; | |
847 | rfkill2[rfkill2_count].rfkill = rfkill; | |
848 | ||
849 | rfkill_init_sw_state(rfkill, | |
850 | IS_SWBLOCKED(state.device[i].power)); | |
851 | rfkill_set_hw_state(rfkill, | |
852 | IS_HWBLOCKED(state.device[i].power)); | |
853 | ||
854 | if (!(state.device[i].power & HPWMI_POWER_BIOS)) | |
b5a4223c | 855 | pr_info("device %s blocked by BIOS\n", name); |
c0b9c649 AH |
856 | |
857 | err = rfkill_register(rfkill); | |
858 | if (err) { | |
859 | rfkill_destroy(rfkill); | |
860 | goto fail; | |
861 | } | |
862 | ||
863 | rfkill2_count++; | |
864 | } | |
865 | ||
866 | return 0; | |
867 | fail: | |
868 | for (; rfkill2_count > 0; rfkill2_count--) { | |
869 | rfkill_unregister(rfkill2[rfkill2_count - 1].rfkill); | |
870 | rfkill_destroy(rfkill2[rfkill2_count - 1].rfkill); | |
871 | } | |
872 | return err; | |
873 | } | |
874 | ||
c165b80c | 875 | static int __init hp_wmi_bios_setup(struct platform_device *device) |
eceb7bdf AH |
876 | { |
877 | int err; | |
878 | ||
6d97db59 AH |
879 | /* clear detected rfkill devices */ |
880 | wifi_rfkill = NULL; | |
881 | bluetooth_rfkill = NULL; | |
882 | wwan_rfkill = NULL; | |
c0b9c649 | 883 | rfkill2_count = 0; |
6d97db59 | 884 | |
997daa1b | 885 | if (hp_wmi_bios_2009_later() || hp_wmi_rfkill_setup(device)) |
c0b9c649 | 886 | hp_wmi_rfkill2_setup(device); |
eceb7bdf AH |
887 | |
888 | err = device_create_file(&device->dev, &dev_attr_display); | |
889 | if (err) | |
890 | goto add_sysfs_error; | |
891 | err = device_create_file(&device->dev, &dev_attr_hddtemp); | |
892 | if (err) | |
893 | goto add_sysfs_error; | |
894 | err = device_create_file(&device->dev, &dev_attr_als); | |
895 | if (err) | |
896 | goto add_sysfs_error; | |
897 | err = device_create_file(&device->dev, &dev_attr_dock); | |
898 | if (err) | |
899 | goto add_sysfs_error; | |
900 | err = device_create_file(&device->dev, &dev_attr_tablet); | |
8667ca95 AH |
901 | if (err) |
902 | goto add_sysfs_error; | |
903 | err = device_create_file(&device->dev, &dev_attr_postcode); | |
eceb7bdf AH |
904 | if (err) |
905 | goto add_sysfs_error; | |
906 | return 0; | |
907 | ||
62ec30d4 MG |
908 | add_sysfs_error: |
909 | cleanup_sysfs(device); | |
910 | return err; | |
911 | } | |
912 | ||
913 | static int __exit hp_wmi_bios_remove(struct platform_device *device) | |
914 | { | |
c0b9c649 | 915 | int i; |
62ec30d4 MG |
916 | cleanup_sysfs(device); |
917 | ||
c0b9c649 AH |
918 | for (i = 0; i < rfkill2_count; i++) { |
919 | rfkill_unregister(rfkill2[i].rfkill); | |
920 | rfkill_destroy(rfkill2[i].rfkill); | |
921 | } | |
922 | ||
19d337df | 923 | if (wifi_rfkill) { |
3f6e2f13 | 924 | rfkill_unregister(wifi_rfkill); |
19d337df JB |
925 | rfkill_destroy(wifi_rfkill); |
926 | } | |
927 | if (bluetooth_rfkill) { | |
3f6e2f13 | 928 | rfkill_unregister(bluetooth_rfkill); |
09729f0b | 929 | rfkill_destroy(bluetooth_rfkill); |
19d337df JB |
930 | } |
931 | if (wwan_rfkill) { | |
3f6e2f13 | 932 | rfkill_unregister(wwan_rfkill); |
19d337df JB |
933 | rfkill_destroy(wwan_rfkill); |
934 | } | |
62ec30d4 MG |
935 | |
936 | return 0; | |
937 | } | |
938 | ||
8dd2b426 | 939 | static int hp_wmi_resume_handler(struct device *device) |
4c395bdd | 940 | { |
4c395bdd | 941 | /* |
871043bc MG |
942 | * Hardware state may have changed while suspended, so trigger |
943 | * input events for the current state. As this is a switch, | |
4c395bdd FP |
944 | * the input layer will only actually pass it on if the state |
945 | * changed. | |
946 | */ | |
daed9537 FP |
947 | if (hp_wmi_input_dev) { |
948 | input_report_switch(hp_wmi_input_dev, SW_DOCK, | |
949 | hp_wmi_dock_state()); | |
950 | input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, | |
951 | hp_wmi_tablet_state()); | |
952 | input_sync(hp_wmi_input_dev); | |
953 | } | |
4c395bdd | 954 | |
c0b9c649 AH |
955 | if (rfkill2_count) |
956 | hp_wmi_rfkill2_refresh(); | |
957 | ||
e5fbba85 AJ |
958 | if (wifi_rfkill) |
959 | rfkill_set_states(wifi_rfkill, | |
960 | hp_wmi_get_sw_state(HPWMI_WIFI), | |
961 | hp_wmi_get_hw_state(HPWMI_WIFI)); | |
962 | if (bluetooth_rfkill) | |
963 | rfkill_set_states(bluetooth_rfkill, | |
964 | hp_wmi_get_sw_state(HPWMI_BLUETOOTH), | |
965 | hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); | |
966 | if (wwan_rfkill) | |
967 | rfkill_set_states(wwan_rfkill, | |
968 | hp_wmi_get_sw_state(HPWMI_WWAN), | |
969 | hp_wmi_get_hw_state(HPWMI_WWAN)); | |
970 | ||
4c395bdd FP |
971 | return 0; |
972 | } | |
973 | ||
c165b80c DT |
974 | static const struct dev_pm_ops hp_wmi_pm_ops = { |
975 | .resume = hp_wmi_resume_handler, | |
976 | .restore = hp_wmi_resume_handler, | |
977 | }; | |
978 | ||
979 | static struct platform_driver hp_wmi_driver = { | |
980 | .driver = { | |
981 | .name = "hp-wmi", | |
c165b80c DT |
982 | .pm = &hp_wmi_pm_ops, |
983 | }, | |
984 | .remove = __exit_p(hp_wmi_bios_remove), | |
985 | }; | |
986 | ||
62ec30d4 MG |
987 | static int __init hp_wmi_init(void) |
988 | { | |
989 | int err; | |
b096667b TR |
990 | int event_capable = wmi_has_guid(HPWMI_EVENT_GUID); |
991 | int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID); | |
62ec30d4 | 992 | |
c165b80c DT |
993 | if (!bios_capable && !event_capable) |
994 | return -ENODEV; | |
995 | ||
b096667b | 996 | if (event_capable) { |
dfec5c48 | 997 | err = hp_wmi_input_setup(); |
4d291ed7 | 998 | if (err) |
dfec5c48 | 999 | return err; |
62ec30d4 MG |
1000 | } |
1001 | ||
b096667b | 1002 | if (bios_capable) { |
c165b80c DT |
1003 | hp_wmi_platform_dev = |
1004 | platform_device_register_simple("hp-wmi", -1, NULL, 0); | |
1005 | if (IS_ERR(hp_wmi_platform_dev)) { | |
1006 | err = PTR_ERR(hp_wmi_platform_dev); | |
1007 | goto err_destroy_input; | |
62ec30d4 | 1008 | } |
c165b80c DT |
1009 | |
1010 | err = platform_driver_probe(&hp_wmi_driver, hp_wmi_bios_setup); | |
dfec5c48 | 1011 | if (err) |
c165b80c | 1012 | goto err_unregister_device; |
62ec30d4 MG |
1013 | } |
1014 | ||
1015 | return 0; | |
dfec5c48 | 1016 | |
c165b80c DT |
1017 | err_unregister_device: |
1018 | platform_device_unregister(hp_wmi_platform_dev); | |
1019 | err_destroy_input: | |
4d291ed7 DT |
1020 | if (event_capable) |
1021 | hp_wmi_input_destroy(); | |
dfec5c48 AL |
1022 | |
1023 | return err; | |
62ec30d4 | 1024 | } |
c165b80c | 1025 | module_init(hp_wmi_init); |
62ec30d4 MG |
1026 | |
1027 | static void __exit hp_wmi_exit(void) | |
1028 | { | |
4d291ed7 DT |
1029 | if (wmi_has_guid(HPWMI_EVENT_GUID)) |
1030 | hp_wmi_input_destroy(); | |
1031 | ||
62ec30d4 | 1032 | if (hp_wmi_platform_dev) { |
97ba0af0 | 1033 | platform_device_unregister(hp_wmi_platform_dev); |
62ec30d4 MG |
1034 | platform_driver_unregister(&hp_wmi_driver); |
1035 | } | |
1036 | } | |
62ec30d4 | 1037 | module_exit(hp_wmi_exit); |