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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 | ||
27 | #include <linux/kernel.h> | |
28 | #include <linux/module.h> | |
29 | #include <linux/init.h> | |
5a0e3ad6 | 30 | #include <linux/slab.h> |
62ec30d4 MG |
31 | #include <linux/types.h> |
32 | #include <linux/input.h> | |
4d291ed7 | 33 | #include <linux/input/sparse-keymap.h> |
62ec30d4 MG |
34 | #include <linux/platform_device.h> |
35 | #include <linux/acpi.h> | |
36 | #include <linux/rfkill.h> | |
37 | #include <linux/string.h> | |
38 | ||
39 | MODULE_AUTHOR("Matthew Garrett <mjg59@srcf.ucam.org>"); | |
40 | MODULE_DESCRIPTION("HP laptop WMI hotkeys driver"); | |
41 | MODULE_LICENSE("GPL"); | |
42 | ||
43 | MODULE_ALIAS("wmi:95F24279-4D7B-4334-9387-ACCDC67EF61C"); | |
44 | MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4"); | |
45 | ||
46 | #define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C" | |
47 | #define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4" | |
48 | ||
49 | #define HPWMI_DISPLAY_QUERY 0x1 | |
50 | #define HPWMI_HDDTEMP_QUERY 0x2 | |
51 | #define HPWMI_ALS_QUERY 0x3 | |
871043bc | 52 | #define HPWMI_HARDWARE_QUERY 0x4 |
62ec30d4 | 53 | #define HPWMI_WIRELESS_QUERY 0x5 |
a8823aef | 54 | #define HPWMI_HOTKEY_QUERY 0xc |
c0b9c649 | 55 | #define HPWMI_WIRELESS2_QUERY 0x1b |
62ec30d4 | 56 | |
a2806c6f | 57 | #define PREFIX "HP WMI: " |
1bbdfd59 | 58 | #define UNIMP "Unimplemented " |
a2806c6f | 59 | |
e5fbba85 AJ |
60 | enum hp_wmi_radio { |
61 | HPWMI_WIFI = 0, | |
62 | HPWMI_BLUETOOTH = 1, | |
63 | HPWMI_WWAN = 2, | |
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, | |
751ae808 TR |
74 | }; |
75 | ||
ea79632d | 76 | static int __devinit hp_wmi_bios_setup(struct platform_device *device); |
62ec30d4 | 77 | static int __exit hp_wmi_bios_remove(struct platform_device *device); |
8dd2b426 | 78 | static int hp_wmi_resume_handler(struct device *device); |
62ec30d4 MG |
79 | |
80 | struct bios_args { | |
81 | u32 signature; | |
82 | u32 command; | |
83 | u32 commandtype; | |
84 | u32 datasize; | |
a8ec105c | 85 | u32 data; |
62ec30d4 MG |
86 | }; |
87 | ||
88 | struct bios_return { | |
89 | u32 sigpass; | |
90 | u32 return_code; | |
62ec30d4 MG |
91 | }; |
92 | ||
9af0e0fb AH |
93 | enum hp_return_value { |
94 | HPWMI_RET_WRONG_SIGNATURE = 0x02, | |
95 | HPWMI_RET_UNKNOWN_COMMAND = 0x03, | |
96 | HPWMI_RET_UNKNOWN_CMDTYPE = 0x04, | |
97 | HPWMI_RET_INVALID_PARAMETERS = 0x05, | |
98 | }; | |
99 | ||
c0b9c649 AH |
100 | enum hp_wireless2_bits { |
101 | HPWMI_POWER_STATE = 0x01, | |
102 | HPWMI_POWER_SOFT = 0x02, | |
103 | HPWMI_POWER_BIOS = 0x04, | |
104 | HPWMI_POWER_HARD = 0x08, | |
105 | }; | |
106 | ||
107 | #define IS_HWBLOCKED(x) ((x & (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) \ | |
108 | != (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) | |
109 | #define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT) | |
110 | ||
111 | struct bios_rfkill2_device_state { | |
112 | u8 radio_type; | |
113 | u8 bus_type; | |
114 | u16 vendor_id; | |
115 | u16 product_id; | |
116 | u16 subsys_vendor_id; | |
117 | u16 subsys_product_id; | |
118 | u8 rfkill_id; | |
119 | u8 power; | |
120 | u8 unknown[4]; | |
121 | }; | |
122 | ||
123 | /* 7 devices fit into the 128 byte buffer */ | |
124 | #define HPWMI_MAX_RFKILL2_DEVICES 7 | |
125 | ||
126 | struct bios_rfkill2_state { | |
127 | u8 unknown[7]; | |
128 | u8 count; | |
129 | u8 pad[8]; | |
130 | struct bios_rfkill2_device_state device[HPWMI_MAX_RFKILL2_DEVICES]; | |
131 | }; | |
132 | ||
4d291ed7 DT |
133 | static const struct key_entry hp_wmi_keymap[] = { |
134 | { KE_KEY, 0x02, { KEY_BRIGHTNESSUP } }, | |
135 | { KE_KEY, 0x03, { KEY_BRIGHTNESSDOWN } }, | |
136 | { KE_KEY, 0x20e6, { KEY_PROG1 } }, | |
137 | { KE_KEY, 0x20e8, { KEY_MEDIA } }, | |
138 | { KE_KEY, 0x2142, { KEY_MEDIA } }, | |
139 | { KE_KEY, 0x213b, { KEY_INFO } }, | |
140 | { KE_KEY, 0x2169, { KEY_DIRECTION } }, | |
141 | { KE_KEY, 0x231b, { KEY_HELP } }, | |
142 | { KE_END, 0 } | |
62ec30d4 MG |
143 | }; |
144 | ||
145 | static struct input_dev *hp_wmi_input_dev; | |
146 | static struct platform_device *hp_wmi_platform_dev; | |
147 | ||
148 | static struct rfkill *wifi_rfkill; | |
149 | static struct rfkill *bluetooth_rfkill; | |
150 | static struct rfkill *wwan_rfkill; | |
151 | ||
c0b9c649 AH |
152 | struct rfkill2_device { |
153 | u8 id; | |
154 | int num; | |
155 | struct rfkill *rfkill; | |
156 | }; | |
157 | ||
158 | static int rfkill2_count; | |
159 | static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES]; | |
160 | ||
47145210 | 161 | static const struct dev_pm_ops hp_wmi_pm_ops = { |
8dd2b426 FP |
162 | .resume = hp_wmi_resume_handler, |
163 | .restore = hp_wmi_resume_handler, | |
164 | }; | |
165 | ||
62ec30d4 MG |
166 | static struct platform_driver hp_wmi_driver = { |
167 | .driver = { | |
8dd2b426 FP |
168 | .name = "hp-wmi", |
169 | .owner = THIS_MODULE, | |
170 | .pm = &hp_wmi_pm_ops, | |
62ec30d4 MG |
171 | }, |
172 | .probe = hp_wmi_bios_setup, | |
173 | .remove = hp_wmi_bios_remove, | |
174 | }; | |
175 | ||
6d96e00c TR |
176 | /* |
177 | * hp_wmi_perform_query | |
178 | * | |
179 | * query: The commandtype -> What should be queried | |
180 | * write: The command -> 0 read, 1 write, 3 ODM specific | |
181 | * buffer: Buffer used as input and/or output | |
c3021ea1 AH |
182 | * insize: Size of input buffer |
183 | * outsize: Size of output buffer | |
6d96e00c TR |
184 | * |
185 | * returns zero on success | |
186 | * an HP WMI query specific error code (which is positive) | |
187 | * -EINVAL if the query was not successful at all | |
188 | * -EINVAL if the output buffer size exceeds buffersize | |
189 | * | |
190 | * Note: The buffersize must at least be the maximum of the input and output | |
191 | * size. E.g. Battery info query (0x7) is defined to have 1 byte input | |
192 | * and 128 byte output. The caller would do: | |
193 | * buffer = kzalloc(128, GFP_KERNEL); | |
c3021ea1 | 194 | * ret = hp_wmi_perform_query(0x7, 0, buffer, 1, 128) |
6d96e00c | 195 | */ |
c3021ea1 AH |
196 | static int hp_wmi_perform_query(int query, int write, void *buffer, |
197 | int insize, int outsize) | |
62ec30d4 | 198 | { |
c3021ea1 AH |
199 | struct bios_return *bios_return; |
200 | int actual_outsize; | |
62ec30d4 MG |
201 | union acpi_object *obj; |
202 | struct bios_args args = { | |
203 | .signature = 0x55434553, | |
204 | .command = write ? 0x2 : 0x1, | |
205 | .commandtype = query, | |
c3021ea1 AH |
206 | .datasize = insize, |
207 | .data = 0, | |
62ec30d4 MG |
208 | }; |
209 | struct acpi_buffer input = { sizeof(struct bios_args), &args }; | |
210 | struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; | |
211 | ||
c3021ea1 AH |
212 | if (WARN_ON(insize > sizeof(args.data))) |
213 | return -EINVAL; | |
214 | memcpy(&args.data, buffer, insize); | |
215 | ||
25bb067a | 216 | wmi_evaluate_method(HPWMI_BIOS_GUID, 0, 0x3, &input, &output); |
62ec30d4 MG |
217 | |
218 | obj = output.pointer; | |
219 | ||
44ef00e6 | 220 | if (!obj) |
62ec30d4 | 221 | return -EINVAL; |
44ef00e6 TR |
222 | else if (obj->type != ACPI_TYPE_BUFFER) { |
223 | kfree(obj); | |
224 | return -EINVAL; | |
225 | } | |
62ec30d4 | 226 | |
c3021ea1 | 227 | bios_return = (struct bios_return *)obj->buffer.pointer; |
6d96e00c | 228 | |
c3021ea1 AH |
229 | if (bios_return->return_code) { |
230 | if (bios_return->return_code != HPWMI_RET_UNKNOWN_CMDTYPE) | |
9af0e0fb AH |
231 | printk(KERN_WARNING PREFIX "query 0x%x returned " |
232 | "error 0x%x\n", | |
c3021ea1 | 233 | query, bios_return->return_code); |
9af0e0fb | 234 | kfree(obj); |
c3021ea1 | 235 | return bios_return->return_code; |
9af0e0fb AH |
236 | } |
237 | ||
c3021ea1 AH |
238 | if (!outsize) { |
239 | /* ignore output data */ | |
240 | kfree(obj); | |
241 | return 0; | |
242 | } | |
53c96dfd | 243 | |
c3021ea1 AH |
244 | actual_outsize = min(outsize, (int)(obj->buffer.length - sizeof(*bios_return))); |
245 | memcpy(buffer, obj->buffer.pointer + sizeof(*bios_return), actual_outsize); | |
246 | memset(buffer + actual_outsize, 0, outsize - actual_outsize); | |
53c96dfd | 247 | kfree(obj); |
6d96e00c | 248 | return 0; |
62ec30d4 MG |
249 | } |
250 | ||
251 | static int hp_wmi_display_state(void) | |
252 | { | |
a8ec105c MG |
253 | int state = 0; |
254 | int ret = hp_wmi_perform_query(HPWMI_DISPLAY_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_hddtemp_state(void) | |
262 | { | |
a8ec105c MG |
263 | int state = 0; |
264 | int ret = hp_wmi_perform_query(HPWMI_HDDTEMP_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_als_state(void) | |
272 | { | |
a8ec105c MG |
273 | int state = 0; |
274 | int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 0, &state, | |
c3021ea1 | 275 | sizeof(state), sizeof(state)); |
6d96e00c TR |
276 | if (ret) |
277 | return -EINVAL; | |
278 | return state; | |
62ec30d4 MG |
279 | } |
280 | ||
281 | static int hp_wmi_dock_state(void) | |
282 | { | |
a8ec105c MG |
283 | int state = 0; |
284 | int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state, | |
c3021ea1 | 285 | sizeof(state), sizeof(state)); |
62ec30d4 | 286 | |
6d96e00c TR |
287 | if (ret) |
288 | return -EINVAL; | |
871043bc | 289 | |
6d96e00c | 290 | return state & 0x1; |
62ec30d4 MG |
291 | } |
292 | ||
871043bc | 293 | static int hp_wmi_tablet_state(void) |
62ec30d4 | 294 | { |
a8ec105c MG |
295 | int state = 0; |
296 | int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state, | |
c3021ea1 | 297 | sizeof(state), sizeof(state)); |
6d96e00c | 298 | if (ret) |
871043bc MG |
299 | return ret; |
300 | ||
6d96e00c | 301 | return (state & 0x4) ? 1 : 0; |
62ec30d4 MG |
302 | } |
303 | ||
19d337df | 304 | static int hp_wmi_set_block(void *data, bool blocked) |
62ec30d4 | 305 | { |
e5fbba85 AJ |
306 | enum hp_wmi_radio r = (enum hp_wmi_radio) data; |
307 | int query = BIT(r + 8) | ((!blocked) << r); | |
6d96e00c | 308 | int ret; |
62ec30d4 | 309 | |
6d96e00c | 310 | ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, |
c3021ea1 | 311 | &query, sizeof(query), 0); |
6d96e00c TR |
312 | if (ret) |
313 | return -EINVAL; | |
314 | return 0; | |
62ec30d4 MG |
315 | } |
316 | ||
19d337df JB |
317 | static const struct rfkill_ops hp_wmi_rfkill_ops = { |
318 | .set_block = hp_wmi_set_block, | |
319 | }; | |
62ec30d4 | 320 | |
e5fbba85 | 321 | static bool hp_wmi_get_sw_state(enum hp_wmi_radio r) |
62ec30d4 | 322 | { |
a8ec105c | 323 | int wireless = 0; |
6d96e00c TR |
324 | int mask; |
325 | hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, | |
c3021ea1 AH |
326 | &wireless, sizeof(wireless), |
327 | sizeof(wireless)); | |
6d96e00c TR |
328 | /* TBD: Pass error */ |
329 | ||
330 | mask = 0x200 << (r * 8); | |
62ec30d4 | 331 | |
e5fbba85 | 332 | if (wireless & mask) |
19d337df | 333 | return false; |
62ec30d4 | 334 | else |
19d337df | 335 | return true; |
62ec30d4 MG |
336 | } |
337 | ||
e5fbba85 | 338 | static bool hp_wmi_get_hw_state(enum hp_wmi_radio r) |
62ec30d4 | 339 | { |
a8ec105c | 340 | int wireless = 0; |
6d96e00c TR |
341 | int mask; |
342 | hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, | |
c3021ea1 AH |
343 | &wireless, sizeof(wireless), |
344 | sizeof(wireless)); | |
6d96e00c TR |
345 | /* TBD: Pass error */ |
346 | ||
347 | mask = 0x800 << (r * 8); | |
62ec30d4 | 348 | |
e5fbba85 | 349 | if (wireless & mask) |
19d337df | 350 | return false; |
62ec30d4 | 351 | else |
19d337df | 352 | return true; |
62ec30d4 MG |
353 | } |
354 | ||
c0b9c649 AH |
355 | static int hp_wmi_rfkill2_set_block(void *data, bool blocked) |
356 | { | |
357 | int rfkill_id = (int)(long)data; | |
358 | char buffer[4] = { 0x01, 0x00, rfkill_id, !blocked }; | |
359 | ||
360 | if (hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 1, | |
361 | buffer, sizeof(buffer), 0)) | |
362 | return -EINVAL; | |
363 | return 0; | |
364 | } | |
365 | ||
366 | static const struct rfkill_ops hp_wmi_rfkill2_ops = { | |
367 | .set_block = hp_wmi_rfkill2_set_block, | |
368 | }; | |
369 | ||
370 | static int hp_wmi_rfkill2_refresh(void) | |
371 | { | |
372 | int err, i; | |
373 | struct bios_rfkill2_state state; | |
374 | ||
375 | err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state, | |
376 | 0, sizeof(state)); | |
377 | if (err) | |
378 | return err; | |
379 | ||
380 | for (i = 0; i < rfkill2_count; i++) { | |
381 | int num = rfkill2[i].num; | |
382 | struct bios_rfkill2_device_state *devstate; | |
383 | devstate = &state.device[num]; | |
384 | ||
385 | if (num >= state.count || | |
386 | devstate->rfkill_id != rfkill2[i].id) { | |
387 | printk(KERN_WARNING PREFIX "power configuration of " | |
388 | "the wireless devices unexpectedly changed\n"); | |
389 | continue; | |
390 | } | |
391 | ||
392 | rfkill_set_states(rfkill2[i].rfkill, | |
393 | IS_SWBLOCKED(devstate->power), | |
394 | IS_HWBLOCKED(devstate->power)); | |
395 | } | |
396 | ||
397 | return 0; | |
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 | ||
62ec30d4 MG |
445 | static ssize_t set_als(struct device *dev, struct device_attribute *attr, |
446 | const char *buf, size_t count) | |
447 | { | |
448 | u32 tmp = simple_strtoul(buf, NULL, 10); | |
a8ec105c | 449 | int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 1, &tmp, |
c3021ea1 | 450 | sizeof(tmp), sizeof(tmp)); |
6d96e00c TR |
451 | if (ret) |
452 | return -EINVAL; | |
453 | ||
62ec30d4 MG |
454 | return count; |
455 | } | |
456 | ||
457 | static DEVICE_ATTR(display, S_IRUGO, show_display, NULL); | |
458 | static DEVICE_ATTR(hddtemp, S_IRUGO, show_hddtemp, NULL); | |
459 | static DEVICE_ATTR(als, S_IRUGO | S_IWUSR, show_als, set_als); | |
460 | static DEVICE_ATTR(dock, S_IRUGO, show_dock, NULL); | |
871043bc | 461 | static DEVICE_ATTR(tablet, S_IRUGO, show_tablet, NULL); |
62ec30d4 | 462 | |
88429a10 | 463 | static void hp_wmi_notify(u32 value, void *context) |
62ec30d4 MG |
464 | { |
465 | struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; | |
62ec30d4 | 466 | union acpi_object *obj; |
8dda6b04 | 467 | u32 event_id, event_data; |
a8ec105c | 468 | int key_code = 0, ret; |
8dda6b04 | 469 | u32 *location; |
fda11e61 | 470 | acpi_status status; |
62ec30d4 | 471 | |
fda11e61 LB |
472 | status = wmi_get_event_data(value, &response); |
473 | if (status != AE_OK) { | |
a2806c6f | 474 | printk(KERN_INFO PREFIX "bad event status 0x%x\n", status); |
fda11e61 LB |
475 | return; |
476 | } | |
62ec30d4 MG |
477 | |
478 | obj = (union acpi_object *)response.pointer; | |
479 | ||
c4775062 TR |
480 | if (!obj) |
481 | return; | |
482 | if (obj->type != ACPI_TYPE_BUFFER) { | |
8dda6b04 TR |
483 | printk(KERN_INFO "hp-wmi: Unknown response received %d\n", |
484 | obj->type); | |
44ef00e6 | 485 | kfree(obj); |
e5fbba85 AJ |
486 | return; |
487 | } | |
488 | ||
8dda6b04 TR |
489 | /* |
490 | * Depending on ACPI version the concatenation of id and event data | |
491 | * inside _WED function will result in a 8 or 16 byte buffer. | |
492 | */ | |
493 | location = (u32 *)obj->buffer.pointer; | |
494 | if (obj->buffer.length == 8) { | |
495 | event_id = *location; | |
496 | event_data = *(location + 1); | |
497 | } else if (obj->buffer.length == 16) { | |
498 | event_id = *location; | |
499 | event_data = *(location + 2); | |
500 | } else { | |
501 | printk(KERN_INFO "hp-wmi: Unknown buffer length %d\n", | |
502 | obj->buffer.length); | |
503 | kfree(obj); | |
504 | return; | |
505 | } | |
44ef00e6 | 506 | kfree(obj); |
8dda6b04 TR |
507 | |
508 | switch (event_id) { | |
751ae808 | 509 | case HPWMI_DOCK_EVENT: |
e5fbba85 AJ |
510 | input_report_switch(hp_wmi_input_dev, SW_DOCK, |
511 | hp_wmi_dock_state()); | |
512 | input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, | |
513 | hp_wmi_tablet_state()); | |
514 | input_sync(hp_wmi_input_dev); | |
751ae808 | 515 | break; |
1bbdfd59 TR |
516 | case HPWMI_PARK_HDD: |
517 | break; | |
518 | case HPWMI_SMART_ADAPTER: | |
519 | break; | |
751ae808 | 520 | case HPWMI_BEZEL_BUTTON: |
6d96e00c | 521 | ret = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0, |
a8ec105c | 522 | &key_code, |
c3021ea1 | 523 | sizeof(key_code), |
6d96e00c TR |
524 | sizeof(key_code)); |
525 | if (ret) | |
526 | break; | |
4d291ed7 DT |
527 | |
528 | if (!sparse_keymap_report_event(hp_wmi_input_dev, | |
529 | key_code, 1, true)) | |
a2806c6f | 530 | printk(KERN_INFO PREFIX "Unknown key code - 0x%x\n", |
da9a79ba | 531 | key_code); |
751ae808 TR |
532 | break; |
533 | case HPWMI_WIRELESS: | |
c0b9c649 AH |
534 | if (rfkill2_count) { |
535 | hp_wmi_rfkill2_refresh(); | |
536 | break; | |
537 | } | |
538 | ||
e5fbba85 AJ |
539 | if (wifi_rfkill) |
540 | rfkill_set_states(wifi_rfkill, | |
541 | hp_wmi_get_sw_state(HPWMI_WIFI), | |
542 | hp_wmi_get_hw_state(HPWMI_WIFI)); | |
543 | if (bluetooth_rfkill) | |
544 | rfkill_set_states(bluetooth_rfkill, | |
545 | hp_wmi_get_sw_state(HPWMI_BLUETOOTH), | |
546 | hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); | |
547 | if (wwan_rfkill) | |
548 | rfkill_set_states(wwan_rfkill, | |
549 | hp_wmi_get_sw_state(HPWMI_WWAN), | |
550 | hp_wmi_get_hw_state(HPWMI_WWAN)); | |
751ae808 | 551 | break; |
1bbdfd59 TR |
552 | case HPWMI_CPU_BATTERY_THROTTLE: |
553 | printk(KERN_INFO PREFIX UNIMP "CPU throttle because of 3 Cell" | |
554 | " battery event detected\n"); | |
555 | break; | |
556 | case HPWMI_LOCK_SWITCH: | |
557 | break; | |
751ae808 | 558 | default: |
8dda6b04 TR |
559 | printk(KERN_INFO PREFIX "Unknown event_id - %d - 0x%x\n", |
560 | event_id, event_data); | |
751ae808 TR |
561 | break; |
562 | } | |
62ec30d4 MG |
563 | } |
564 | ||
565 | static int __init hp_wmi_input_setup(void) | |
566 | { | |
4d291ed7 | 567 | acpi_status status; |
62ec30d4 MG |
568 | int err; |
569 | ||
570 | hp_wmi_input_dev = input_allocate_device(); | |
bc28596a AL |
571 | if (!hp_wmi_input_dev) |
572 | return -ENOMEM; | |
62ec30d4 MG |
573 | |
574 | hp_wmi_input_dev->name = "HP WMI hotkeys"; | |
575 | hp_wmi_input_dev->phys = "wmi/input0"; | |
576 | hp_wmi_input_dev->id.bustype = BUS_HOST; | |
62ec30d4 | 577 | |
4d291ed7 DT |
578 | __set_bit(EV_SW, hp_wmi_input_dev->evbit); |
579 | __set_bit(SW_DOCK, hp_wmi_input_dev->swbit); | |
580 | __set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit); | |
581 | ||
582 | err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL); | |
583 | if (err) | |
584 | goto err_free_dev; | |
871043bc MG |
585 | |
586 | /* Set initial hardware state */ | |
587 | input_report_switch(hp_wmi_input_dev, SW_DOCK, hp_wmi_dock_state()); | |
588 | input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, | |
589 | hp_wmi_tablet_state()); | |
590 | input_sync(hp_wmi_input_dev); | |
591 | ||
4d291ed7 DT |
592 | status = wmi_install_notify_handler(HPWMI_EVENT_GUID, hp_wmi_notify, NULL); |
593 | if (ACPI_FAILURE(status)) { | |
594 | err = -EIO; | |
595 | goto err_free_keymap; | |
62ec30d4 MG |
596 | } |
597 | ||
4d291ed7 DT |
598 | err = input_register_device(hp_wmi_input_dev); |
599 | if (err) | |
600 | goto err_uninstall_notifier; | |
601 | ||
62ec30d4 | 602 | return 0; |
4d291ed7 DT |
603 | |
604 | err_uninstall_notifier: | |
605 | wmi_remove_notify_handler(HPWMI_EVENT_GUID); | |
606 | err_free_keymap: | |
607 | sparse_keymap_free(hp_wmi_input_dev); | |
608 | err_free_dev: | |
609 | input_free_device(hp_wmi_input_dev); | |
610 | return err; | |
611 | } | |
612 | ||
613 | static void hp_wmi_input_destroy(void) | |
614 | { | |
615 | wmi_remove_notify_handler(HPWMI_EVENT_GUID); | |
616 | sparse_keymap_free(hp_wmi_input_dev); | |
617 | input_unregister_device(hp_wmi_input_dev); | |
62ec30d4 MG |
618 | } |
619 | ||
620 | static void cleanup_sysfs(struct platform_device *device) | |
621 | { | |
622 | device_remove_file(&device->dev, &dev_attr_display); | |
623 | device_remove_file(&device->dev, &dev_attr_hddtemp); | |
624 | device_remove_file(&device->dev, &dev_attr_als); | |
625 | device_remove_file(&device->dev, &dev_attr_dock); | |
871043bc | 626 | device_remove_file(&device->dev, &dev_attr_tablet); |
62ec30d4 MG |
627 | } |
628 | ||
eceb7bdf | 629 | static int __devinit hp_wmi_rfkill_setup(struct platform_device *device) |
62ec30d4 MG |
630 | { |
631 | int err; | |
a8ec105c | 632 | int wireless = 0; |
6d96e00c | 633 | |
a8ec105c | 634 | err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, &wireless, |
c3021ea1 | 635 | sizeof(wireless), sizeof(wireless)); |
6d96e00c TR |
636 | if (err) |
637 | return err; | |
62ec30d4 | 638 | |
3f6e2f13 | 639 | if (wireless & 0x1) { |
19d337df JB |
640 | wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev, |
641 | RFKILL_TYPE_WLAN, | |
642 | &hp_wmi_rfkill_ops, | |
e5fbba85 AJ |
643 | (void *) HPWMI_WIFI); |
644 | rfkill_init_sw_state(wifi_rfkill, | |
645 | hp_wmi_get_sw_state(HPWMI_WIFI)); | |
646 | rfkill_set_hw_state(wifi_rfkill, | |
647 | hp_wmi_get_hw_state(HPWMI_WIFI)); | |
fe8e4e03 LF |
648 | err = rfkill_register(wifi_rfkill); |
649 | if (err) | |
19d337df | 650 | goto register_wifi_error; |
3f6e2f13 MG |
651 | } |
652 | ||
653 | if (wireless & 0x2) { | |
19d337df JB |
654 | bluetooth_rfkill = rfkill_alloc("hp-bluetooth", &device->dev, |
655 | RFKILL_TYPE_BLUETOOTH, | |
656 | &hp_wmi_rfkill_ops, | |
e5fbba85 AJ |
657 | (void *) HPWMI_BLUETOOTH); |
658 | rfkill_init_sw_state(bluetooth_rfkill, | |
659 | hp_wmi_get_sw_state(HPWMI_BLUETOOTH)); | |
660 | rfkill_set_hw_state(bluetooth_rfkill, | |
661 | hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); | |
fe8e4e03 | 662 | err = rfkill_register(bluetooth_rfkill); |
6989d565 | 663 | if (err) |
fe8e4e03 | 664 | goto register_bluetooth_error; |
3f6e2f13 MG |
665 | } |
666 | ||
667 | if (wireless & 0x4) { | |
19d337df JB |
668 | wwan_rfkill = rfkill_alloc("hp-wwan", &device->dev, |
669 | RFKILL_TYPE_WWAN, | |
670 | &hp_wmi_rfkill_ops, | |
e5fbba85 AJ |
671 | (void *) HPWMI_WWAN); |
672 | rfkill_init_sw_state(wwan_rfkill, | |
673 | hp_wmi_get_sw_state(HPWMI_WWAN)); | |
674 | rfkill_set_hw_state(wwan_rfkill, | |
675 | hp_wmi_get_hw_state(HPWMI_WWAN)); | |
fe8e4e03 LF |
676 | err = rfkill_register(wwan_rfkill); |
677 | if (err) | |
678 | goto register_wwan_err; | |
3f6e2f13 | 679 | } |
62ec30d4 MG |
680 | |
681 | return 0; | |
fe8e4e03 | 682 | register_wwan_err: |
19d337df | 683 | rfkill_destroy(wwan_rfkill); |
6d97db59 | 684 | wwan_rfkill = NULL; |
44f0606d AM |
685 | if (bluetooth_rfkill) |
686 | rfkill_unregister(bluetooth_rfkill); | |
fe8e4e03 | 687 | register_bluetooth_error: |
19d337df | 688 | rfkill_destroy(bluetooth_rfkill); |
6d97db59 | 689 | bluetooth_rfkill = NULL; |
44f0606d AM |
690 | if (wifi_rfkill) |
691 | rfkill_unregister(wifi_rfkill); | |
19d337df JB |
692 | register_wifi_error: |
693 | rfkill_destroy(wifi_rfkill); | |
6d97db59 | 694 | wifi_rfkill = NULL; |
eceb7bdf AH |
695 | return err; |
696 | } | |
697 | ||
c0b9c649 AH |
698 | static int __devinit hp_wmi_rfkill2_setup(struct platform_device *device) |
699 | { | |
700 | int err, i; | |
701 | struct bios_rfkill2_state state; | |
702 | err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state, | |
703 | 0, sizeof(state)); | |
704 | if (err) | |
705 | return err; | |
706 | ||
707 | if (state.count > HPWMI_MAX_RFKILL2_DEVICES) { | |
708 | printk(KERN_WARNING PREFIX "unable to parse 0x1b query output\n"); | |
709 | return -EINVAL; | |
710 | } | |
711 | ||
712 | for (i = 0; i < state.count; i++) { | |
713 | struct rfkill *rfkill; | |
714 | enum rfkill_type type; | |
715 | char *name; | |
716 | switch (state.device[i].radio_type) { | |
717 | case HPWMI_WIFI: | |
718 | type = RFKILL_TYPE_WLAN; | |
719 | name = "hp-wifi"; | |
720 | break; | |
721 | case HPWMI_BLUETOOTH: | |
722 | type = RFKILL_TYPE_BLUETOOTH; | |
723 | name = "hp-bluetooth"; | |
724 | break; | |
725 | case HPWMI_WWAN: | |
726 | type = RFKILL_TYPE_WWAN; | |
727 | name = "hp-wwan"; | |
728 | break; | |
729 | default: | |
730 | printk(KERN_WARNING PREFIX "unknown device type 0x%x\n", | |
731 | state.device[i].radio_type); | |
732 | continue; | |
733 | } | |
734 | ||
735 | if (!state.device[i].vendor_id) { | |
736 | printk(KERN_WARNING PREFIX "zero device %d while %d " | |
737 | "reported\n", i, state.count); | |
738 | continue; | |
739 | } | |
740 | ||
741 | rfkill = rfkill_alloc(name, &device->dev, type, | |
742 | &hp_wmi_rfkill2_ops, (void *)(long)i); | |
743 | if (!rfkill) { | |
744 | err = -ENOMEM; | |
745 | goto fail; | |
746 | } | |
747 | ||
748 | rfkill2[rfkill2_count].id = state.device[i].rfkill_id; | |
749 | rfkill2[rfkill2_count].num = i; | |
750 | rfkill2[rfkill2_count].rfkill = rfkill; | |
751 | ||
752 | rfkill_init_sw_state(rfkill, | |
753 | IS_SWBLOCKED(state.device[i].power)); | |
754 | rfkill_set_hw_state(rfkill, | |
755 | IS_HWBLOCKED(state.device[i].power)); | |
756 | ||
757 | if (!(state.device[i].power & HPWMI_POWER_BIOS)) | |
758 | printk(KERN_INFO PREFIX "device %s blocked by BIOS\n", | |
759 | name); | |
760 | ||
761 | err = rfkill_register(rfkill); | |
762 | if (err) { | |
763 | rfkill_destroy(rfkill); | |
764 | goto fail; | |
765 | } | |
766 | ||
767 | rfkill2_count++; | |
768 | } | |
769 | ||
770 | return 0; | |
771 | fail: | |
772 | for (; rfkill2_count > 0; rfkill2_count--) { | |
773 | rfkill_unregister(rfkill2[rfkill2_count - 1].rfkill); | |
774 | rfkill_destroy(rfkill2[rfkill2_count - 1].rfkill); | |
775 | } | |
776 | return err; | |
777 | } | |
778 | ||
eceb7bdf AH |
779 | static int __devinit hp_wmi_bios_setup(struct platform_device *device) |
780 | { | |
781 | int err; | |
782 | ||
6d97db59 AH |
783 | /* clear detected rfkill devices */ |
784 | wifi_rfkill = NULL; | |
785 | bluetooth_rfkill = NULL; | |
786 | wwan_rfkill = NULL; | |
c0b9c649 | 787 | rfkill2_count = 0; |
6d97db59 | 788 | |
c0b9c649 AH |
789 | if (hp_wmi_rfkill_setup(device)) |
790 | hp_wmi_rfkill2_setup(device); | |
eceb7bdf AH |
791 | |
792 | err = device_create_file(&device->dev, &dev_attr_display); | |
793 | if (err) | |
794 | goto add_sysfs_error; | |
795 | err = device_create_file(&device->dev, &dev_attr_hddtemp); | |
796 | if (err) | |
797 | goto add_sysfs_error; | |
798 | err = device_create_file(&device->dev, &dev_attr_als); | |
799 | if (err) | |
800 | goto add_sysfs_error; | |
801 | err = device_create_file(&device->dev, &dev_attr_dock); | |
802 | if (err) | |
803 | goto add_sysfs_error; | |
804 | err = device_create_file(&device->dev, &dev_attr_tablet); | |
805 | if (err) | |
806 | goto add_sysfs_error; | |
807 | return 0; | |
808 | ||
62ec30d4 MG |
809 | add_sysfs_error: |
810 | cleanup_sysfs(device); | |
811 | return err; | |
812 | } | |
813 | ||
814 | static int __exit hp_wmi_bios_remove(struct platform_device *device) | |
815 | { | |
c0b9c649 | 816 | int i; |
62ec30d4 MG |
817 | cleanup_sysfs(device); |
818 | ||
c0b9c649 AH |
819 | for (i = 0; i < rfkill2_count; i++) { |
820 | rfkill_unregister(rfkill2[i].rfkill); | |
821 | rfkill_destroy(rfkill2[i].rfkill); | |
822 | } | |
823 | ||
19d337df | 824 | if (wifi_rfkill) { |
3f6e2f13 | 825 | rfkill_unregister(wifi_rfkill); |
19d337df JB |
826 | rfkill_destroy(wifi_rfkill); |
827 | } | |
828 | if (bluetooth_rfkill) { | |
3f6e2f13 | 829 | rfkill_unregister(bluetooth_rfkill); |
09729f0b | 830 | rfkill_destroy(bluetooth_rfkill); |
19d337df JB |
831 | } |
832 | if (wwan_rfkill) { | |
3f6e2f13 | 833 | rfkill_unregister(wwan_rfkill); |
19d337df JB |
834 | rfkill_destroy(wwan_rfkill); |
835 | } | |
62ec30d4 MG |
836 | |
837 | return 0; | |
838 | } | |
839 | ||
8dd2b426 | 840 | static int hp_wmi_resume_handler(struct device *device) |
4c395bdd | 841 | { |
4c395bdd | 842 | /* |
871043bc MG |
843 | * Hardware state may have changed while suspended, so trigger |
844 | * input events for the current state. As this is a switch, | |
4c395bdd FP |
845 | * the input layer will only actually pass it on if the state |
846 | * changed. | |
847 | */ | |
daed9537 FP |
848 | if (hp_wmi_input_dev) { |
849 | input_report_switch(hp_wmi_input_dev, SW_DOCK, | |
850 | hp_wmi_dock_state()); | |
851 | input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, | |
852 | hp_wmi_tablet_state()); | |
853 | input_sync(hp_wmi_input_dev); | |
854 | } | |
4c395bdd | 855 | |
c0b9c649 AH |
856 | if (rfkill2_count) |
857 | hp_wmi_rfkill2_refresh(); | |
858 | ||
e5fbba85 AJ |
859 | if (wifi_rfkill) |
860 | rfkill_set_states(wifi_rfkill, | |
861 | hp_wmi_get_sw_state(HPWMI_WIFI), | |
862 | hp_wmi_get_hw_state(HPWMI_WIFI)); | |
863 | if (bluetooth_rfkill) | |
864 | rfkill_set_states(bluetooth_rfkill, | |
865 | hp_wmi_get_sw_state(HPWMI_BLUETOOTH), | |
866 | hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); | |
867 | if (wwan_rfkill) | |
868 | rfkill_set_states(wwan_rfkill, | |
869 | hp_wmi_get_sw_state(HPWMI_WWAN), | |
870 | hp_wmi_get_hw_state(HPWMI_WWAN)); | |
871 | ||
4c395bdd FP |
872 | return 0; |
873 | } | |
874 | ||
62ec30d4 MG |
875 | static int __init hp_wmi_init(void) |
876 | { | |
877 | int err; | |
b096667b TR |
878 | int event_capable = wmi_has_guid(HPWMI_EVENT_GUID); |
879 | int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID); | |
62ec30d4 | 880 | |
b096667b | 881 | if (event_capable) { |
dfec5c48 | 882 | err = hp_wmi_input_setup(); |
4d291ed7 | 883 | if (err) |
dfec5c48 | 884 | return err; |
62ec30d4 MG |
885 | } |
886 | ||
b096667b | 887 | if (bios_capable) { |
62ec30d4 MG |
888 | err = platform_driver_register(&hp_wmi_driver); |
889 | if (err) | |
dfec5c48 | 890 | goto err_driver_reg; |
62ec30d4 MG |
891 | hp_wmi_platform_dev = platform_device_alloc("hp-wmi", -1); |
892 | if (!hp_wmi_platform_dev) { | |
dfec5c48 AL |
893 | err = -ENOMEM; |
894 | goto err_device_alloc; | |
62ec30d4 | 895 | } |
dfec5c48 AL |
896 | err = platform_device_add(hp_wmi_platform_dev); |
897 | if (err) | |
898 | goto err_device_add; | |
62ec30d4 MG |
899 | } |
900 | ||
b096667b TR |
901 | if (!bios_capable && !event_capable) |
902 | return -ENODEV; | |
903 | ||
62ec30d4 | 904 | return 0; |
dfec5c48 AL |
905 | |
906 | err_device_add: | |
907 | platform_device_put(hp_wmi_platform_dev); | |
908 | err_device_alloc: | |
909 | platform_driver_unregister(&hp_wmi_driver); | |
910 | err_driver_reg: | |
4d291ed7 DT |
911 | if (event_capable) |
912 | hp_wmi_input_destroy(); | |
dfec5c48 AL |
913 | |
914 | return err; | |
62ec30d4 MG |
915 | } |
916 | ||
917 | static void __exit hp_wmi_exit(void) | |
918 | { | |
4d291ed7 DT |
919 | if (wmi_has_guid(HPWMI_EVENT_GUID)) |
920 | hp_wmi_input_destroy(); | |
921 | ||
62ec30d4 | 922 | if (hp_wmi_platform_dev) { |
97ba0af0 | 923 | platform_device_unregister(hp_wmi_platform_dev); |
62ec30d4 MG |
924 | platform_driver_unregister(&hp_wmi_driver); |
925 | } | |
926 | } | |
927 | ||
928 | module_init(hp_wmi_init); | |
929 | module_exit(hp_wmi_exit); |