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