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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * HP WMI hotkeys
4 *
5 * Copyright (C) 2008 Red Hat <mjg@redhat.com>
6 * Copyright (C) 2010, 2011 Anssi Hannula <anssi.hannula@iki.fi>
7 *
8 * Portions based on wistron_btns.c:
9 * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
10 * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
11 * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
12 */
13
14#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
15
16#include <linux/kernel.h>
17#include <linux/module.h>
18#include <linux/init.h>
19#include <linux/slab.h>
20#include <linux/types.h>
21#include <linux/input.h>
22#include <linux/input/sparse-keymap.h>
23#include <linux/platform_device.h>
24#include <linux/platform_profile.h>
25#include <linux/hwmon.h>
26#include <linux/acpi.h>
27#include <linux/rfkill.h>
28#include <linux/string.h>
29#include <linux/dmi.h>
30
31MODULE_AUTHOR("Matthew Garrett <mjg59@srcf.ucam.org>");
32MODULE_DESCRIPTION("HP laptop WMI hotkeys driver");
33MODULE_LICENSE("GPL");
34
35MODULE_ALIAS("wmi:95F24279-4D7B-4334-9387-ACCDC67EF61C");
36MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4");
37
38#define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C"
39#define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4"
40#define HP_OMEN_EC_THERMAL_PROFILE_OFFSET 0x95
41#define zero_if_sup(tmp) (zero_insize_support?0:sizeof(tmp)) // use when zero insize is required
42
43/* DMI board names of devices that should use the omen specific path for
44 * thermal profiles.
45 * This was obtained by taking a look in the windows omen command center
46 * app and parsing a json file that they use to figure out what capabilities
47 * the device should have.
48 * A device is considered an omen if the DisplayName in that list contains
49 * "OMEN", and it can use the thermal profile stuff if the "Feature" array
50 * contains "PerformanceControl".
51 */
52static const char * const omen_thermal_profile_boards[] = {
53 "84DA", "84DB", "84DC", "8574", "8575", "860A", "87B5", "8572", "8573",
54 "8600", "8601", "8602", "8605", "8606", "8607", "8746", "8747", "8749",
55 "874A", "8603", "8604", "8748", "886B", "886C", "878A", "878B", "878C",
56 "88C8", "88CB", "8786", "8787", "8788", "88D1", "88D2", "88F4", "88FD",
57 "88F5", "88F6", "88F7", "88FE", "88FF", "8900", "8901", "8902", "8912",
58 "8917", "8918", "8949", "894A", "89EB"
59};
60
61/* DMI Board names of Omen laptops that are specifically set to be thermal
62 * profile version 0 by the Omen Command Center app, regardless of what
63 * the get system design information WMI call returns
64 */
65static const char *const omen_thermal_profile_force_v0_boards[] = {
66 "8607", "8746", "8747", "8749", "874A", "8748"
67};
68
69enum hp_wmi_radio {
70 HPWMI_WIFI = 0x0,
71 HPWMI_BLUETOOTH = 0x1,
72 HPWMI_WWAN = 0x2,
73 HPWMI_GPS = 0x3,
74};
75
76enum hp_wmi_event_ids {
77 HPWMI_DOCK_EVENT = 0x01,
78 HPWMI_PARK_HDD = 0x02,
79 HPWMI_SMART_ADAPTER = 0x03,
80 HPWMI_BEZEL_BUTTON = 0x04,
81 HPWMI_WIRELESS = 0x05,
82 HPWMI_CPU_BATTERY_THROTTLE = 0x06,
83 HPWMI_LOCK_SWITCH = 0x07,
84 HPWMI_LID_SWITCH = 0x08,
85 HPWMI_SCREEN_ROTATION = 0x09,
86 HPWMI_COOLSENSE_SYSTEM_MOBILE = 0x0A,
87 HPWMI_COOLSENSE_SYSTEM_HOT = 0x0B,
88 HPWMI_PROXIMITY_SENSOR = 0x0C,
89 HPWMI_BACKLIT_KB_BRIGHTNESS = 0x0D,
90 HPWMI_PEAKSHIFT_PERIOD = 0x0F,
91 HPWMI_BATTERY_CHARGE_PERIOD = 0x10,
92 HPWMI_SANITIZATION_MODE = 0x17,
93 HPWMI_OMEN_KEY = 0x1D,
94 HPWMI_SMART_EXPERIENCE_APP = 0x21,
95};
96
97/*
98 * struct bios_args buffer is dynamically allocated. New WMI command types
99 * were introduced that exceeds 128-byte data size. Changes to handle
100 * the data size allocation scheme were kept in hp_wmi_perform_qurey function.
101 */
102struct bios_args {
103 u32 signature;
104 u32 command;
105 u32 commandtype;
106 u32 datasize;
107 u8 data[];
108};
109
110enum hp_wmi_commandtype {
111 HPWMI_DISPLAY_QUERY = 0x01,
112 HPWMI_HDDTEMP_QUERY = 0x02,
113 HPWMI_ALS_QUERY = 0x03,
114 HPWMI_HARDWARE_QUERY = 0x04,
115 HPWMI_WIRELESS_QUERY = 0x05,
116 HPWMI_BATTERY_QUERY = 0x07,
117 HPWMI_BIOS_QUERY = 0x09,
118 HPWMI_FEATURE_QUERY = 0x0b,
119 HPWMI_HOTKEY_QUERY = 0x0c,
120 HPWMI_FEATURE2_QUERY = 0x0d,
121 HPWMI_WIRELESS2_QUERY = 0x1b,
122 HPWMI_POSTCODEERROR_QUERY = 0x2a,
123 HPWMI_SYSTEM_DEVICE_MODE = 0x40,
124 HPWMI_THERMAL_PROFILE_QUERY = 0x4c,
125};
126
127enum hp_wmi_gm_commandtype {
128 HPWMI_FAN_SPEED_GET_QUERY = 0x11,
129 HPWMI_SET_PERFORMANCE_MODE = 0x1A,
130 HPWMI_FAN_SPEED_MAX_GET_QUERY = 0x26,
131 HPWMI_FAN_SPEED_MAX_SET_QUERY = 0x27,
132 HPWMI_GET_SYSTEM_DESIGN_DATA = 0x28,
133};
134
135enum hp_wmi_command {
136 HPWMI_READ = 0x01,
137 HPWMI_WRITE = 0x02,
138 HPWMI_ODM = 0x03,
139 HPWMI_GM = 0x20008,
140};
141
142enum hp_wmi_hardware_mask {
143 HPWMI_DOCK_MASK = 0x01,
144 HPWMI_TABLET_MASK = 0x04,
145};
146
147struct bios_return {
148 u32 sigpass;
149 u32 return_code;
150};
151
152enum hp_return_value {
153 HPWMI_RET_WRONG_SIGNATURE = 0x02,
154 HPWMI_RET_UNKNOWN_COMMAND = 0x03,
155 HPWMI_RET_UNKNOWN_CMDTYPE = 0x04,
156 HPWMI_RET_INVALID_PARAMETERS = 0x05,
157};
158
159enum hp_wireless2_bits {
160 HPWMI_POWER_STATE = 0x01,
161 HPWMI_POWER_SOFT = 0x02,
162 HPWMI_POWER_BIOS = 0x04,
163 HPWMI_POWER_HARD = 0x08,
164 HPWMI_POWER_FW_OR_HW = HPWMI_POWER_BIOS | HPWMI_POWER_HARD,
165};
166
167enum hp_thermal_profile_omen_v0 {
168 HP_OMEN_V0_THERMAL_PROFILE_DEFAULT = 0x00,
169 HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE = 0x01,
170 HP_OMEN_V0_THERMAL_PROFILE_COOL = 0x02,
171};
172
173enum hp_thermal_profile_omen_v1 {
174 HP_OMEN_V1_THERMAL_PROFILE_DEFAULT = 0x30,
175 HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE = 0x31,
176 HP_OMEN_V1_THERMAL_PROFILE_COOL = 0x50,
177};
178
179enum hp_thermal_profile {
180 HP_THERMAL_PROFILE_PERFORMANCE = 0x00,
181 HP_THERMAL_PROFILE_DEFAULT = 0x01,
182 HP_THERMAL_PROFILE_COOL = 0x02,
183 HP_THERMAL_PROFILE_QUIET = 0x03,
184};
185
186#define IS_HWBLOCKED(x) ((x & HPWMI_POWER_FW_OR_HW) != HPWMI_POWER_FW_OR_HW)
187#define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT)
188
189struct bios_rfkill2_device_state {
190 u8 radio_type;
191 u8 bus_type;
192 u16 vendor_id;
193 u16 product_id;
194 u16 subsys_vendor_id;
195 u16 subsys_product_id;
196 u8 rfkill_id;
197 u8 power;
198 u8 unknown[4];
199};
200
201/* 7 devices fit into the 128 byte buffer */
202#define HPWMI_MAX_RFKILL2_DEVICES 7
203
204struct bios_rfkill2_state {
205 u8 unknown[7];
206 u8 count;
207 u8 pad[8];
208 struct bios_rfkill2_device_state device[HPWMI_MAX_RFKILL2_DEVICES];
209};
210
211static const struct key_entry hp_wmi_keymap[] = {
212 { KE_KEY, 0x02, { KEY_BRIGHTNESSUP } },
213 { KE_KEY, 0x03, { KEY_BRIGHTNESSDOWN } },
214 { KE_KEY, 0x20e6, { KEY_PROG1 } },
215 { KE_KEY, 0x20e8, { KEY_MEDIA } },
216 { KE_KEY, 0x2142, { KEY_MEDIA } },
217 { KE_KEY, 0x213b, { KEY_INFO } },
218 { KE_KEY, 0x2169, { KEY_ROTATE_DISPLAY } },
219 { KE_KEY, 0x216a, { KEY_SETUP } },
220 { KE_KEY, 0x21a5, { KEY_PROG2 } }, /* HP Omen Key */
221 { KE_KEY, 0x21a7, { KEY_FN_ESC } },
222 { KE_KEY, 0x21a9, { KEY_TOUCHPAD_OFF } },
223 { KE_KEY, 0x121a9, { KEY_TOUCHPAD_ON } },
224 { KE_KEY, 0x231b, { KEY_HELP } },
225 { KE_END, 0 }
226};
227
228static struct input_dev *hp_wmi_input_dev;
229static struct platform_device *hp_wmi_platform_dev;
230static struct platform_profile_handler platform_profile_handler;
231static bool platform_profile_support;
232static bool zero_insize_support;
233
234static struct rfkill *wifi_rfkill;
235static struct rfkill *bluetooth_rfkill;
236static struct rfkill *wwan_rfkill;
237
238struct rfkill2_device {
239 u8 id;
240 int num;
241 struct rfkill *rfkill;
242};
243
244static int rfkill2_count;
245static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES];
246
247/*
248 * Chassis Types values were obtained from SMBIOS reference
249 * specification version 3.00. A complete list of system enclosures
250 * and chassis types is available on Table 17.
251 */
252static const char * const tablet_chassis_types[] = {
253 "30", /* Tablet*/
254 "31", /* Convertible */
255 "32" /* Detachable */
256};
257
258#define DEVICE_MODE_TABLET 0x06
259
260/* map output size to the corresponding WMI method id */
261static inline int encode_outsize_for_pvsz(int outsize)
262{
263 if (outsize > 4096)
264 return -EINVAL;
265 if (outsize > 1024)
266 return 5;
267 if (outsize > 128)
268 return 4;
269 if (outsize > 4)
270 return 3;
271 if (outsize > 0)
272 return 2;
273 return 1;
274}
275
276/*
277 * hp_wmi_perform_query
278 *
279 * query: The commandtype (enum hp_wmi_commandtype)
280 * write: The command (enum hp_wmi_command)
281 * buffer: Buffer used as input and/or output
282 * insize: Size of input buffer
283 * outsize: Size of output buffer
284 *
285 * returns zero on success
286 * an HP WMI query specific error code (which is positive)
287 * -EINVAL if the query was not successful at all
288 * -EINVAL if the output buffer size exceeds buffersize
289 *
290 * Note: The buffersize must at least be the maximum of the input and output
291 * size. E.g. Battery info query is defined to have 1 byte input
292 * and 128 byte output. The caller would do:
293 * buffer = kzalloc(128, GFP_KERNEL);
294 * ret = hp_wmi_perform_query(HPWMI_BATTERY_QUERY, HPWMI_READ, buffer, 1, 128)
295 */
296static int hp_wmi_perform_query(int query, enum hp_wmi_command command,
297 void *buffer, int insize, int outsize)
298{
299 struct acpi_buffer input, output = { ACPI_ALLOCATE_BUFFER, NULL };
300 struct bios_return *bios_return;
301 union acpi_object *obj = NULL;
302 struct bios_args *args = NULL;
303 int mid, actual_insize, actual_outsize;
304 size_t bios_args_size;
305 int ret;
306
307 mid = encode_outsize_for_pvsz(outsize);
308 if (WARN_ON(mid < 0))
309 return mid;
310
311 actual_insize = max(insize, 128);
312 bios_args_size = struct_size(args, data, actual_insize);
313 args = kmalloc(bios_args_size, GFP_KERNEL);
314 if (!args)
315 return -ENOMEM;
316
317 input.length = bios_args_size;
318 input.pointer = args;
319
320 args->signature = 0x55434553;
321 args->command = command;
322 args->commandtype = query;
323 args->datasize = insize;
324 memcpy(args->data, buffer, flex_array_size(args, data, insize));
325
326 ret = wmi_evaluate_method(HPWMI_BIOS_GUID, 0, mid, &input, &output);
327 if (ret)
328 goto out_free;
329
330 obj = output.pointer;
331 if (!obj) {
332 ret = -EINVAL;
333 goto out_free;
334 }
335
336 if (obj->type != ACPI_TYPE_BUFFER) {
337 pr_warn("query 0x%x returned an invalid object 0x%x\n", query, ret);
338 ret = -EINVAL;
339 goto out_free;
340 }
341
342 bios_return = (struct bios_return *)obj->buffer.pointer;
343 ret = bios_return->return_code;
344
345 if (ret) {
346 if (ret != HPWMI_RET_UNKNOWN_COMMAND &&
347 ret != HPWMI_RET_UNKNOWN_CMDTYPE)
348 pr_warn("query 0x%x returned error 0x%x\n", query, ret);
349 goto out_free;
350 }
351
352 /* Ignore output data of zero size */
353 if (!outsize)
354 goto out_free;
355
356 actual_outsize = min(outsize, (int)(obj->buffer.length - sizeof(*bios_return)));
357 memcpy(buffer, obj->buffer.pointer + sizeof(*bios_return), actual_outsize);
358 memset(buffer + actual_outsize, 0, outsize - actual_outsize);
359
360out_free:
361 kfree(obj);
362 kfree(args);
363 return ret;
364}
365
366static int hp_wmi_get_fan_speed(int fan)
367{
368 u8 fsh, fsl;
369 char fan_data[4] = { fan, 0, 0, 0 };
370
371 int ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_GET_QUERY, HPWMI_GM,
372 &fan_data, sizeof(char),
373 sizeof(fan_data));
374
375 if (ret != 0)
376 return -EINVAL;
377
378 fsh = fan_data[2];
379 fsl = fan_data[3];
380
381 return (fsh << 8) | fsl;
382}
383
384static int hp_wmi_read_int(int query)
385{
386 int val = 0, ret;
387
388 ret = hp_wmi_perform_query(query, HPWMI_READ, &val,
389 zero_if_sup(val), sizeof(val));
390
391 if (ret)
392 return ret < 0 ? ret : -EINVAL;
393
394 return val;
395}
396
397static int hp_wmi_get_dock_state(void)
398{
399 int state = hp_wmi_read_int(HPWMI_HARDWARE_QUERY);
400
401 if (state < 0)
402 return state;
403
404 return !!(state & HPWMI_DOCK_MASK);
405}
406
407static int hp_wmi_get_tablet_mode(void)
408{
409 char system_device_mode[4] = { 0 };
410 const char *chassis_type;
411 bool tablet_found;
412 int ret;
413
414 chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE);
415 if (!chassis_type)
416 return -ENODEV;
417
418 tablet_found = match_string(tablet_chassis_types,
419 ARRAY_SIZE(tablet_chassis_types),
420 chassis_type) >= 0;
421 if (!tablet_found)
422 return -ENODEV;
423
424 ret = hp_wmi_perform_query(HPWMI_SYSTEM_DEVICE_MODE, HPWMI_READ,
425 system_device_mode, zero_if_sup(system_device_mode),
426 sizeof(system_device_mode));
427 if (ret < 0)
428 return ret;
429
430 return system_device_mode[0] == DEVICE_MODE_TABLET;
431}
432
433static int omen_thermal_profile_set(int mode)
434{
435 char buffer[2] = {0, mode};
436 int ret;
437
438 ret = hp_wmi_perform_query(HPWMI_SET_PERFORMANCE_MODE, HPWMI_GM,
439 &buffer, sizeof(buffer), 0);
440
441 if (ret)
442 return ret < 0 ? ret : -EINVAL;
443
444 return mode;
445}
446
447static bool is_omen_thermal_profile(void)
448{
449 const char *board_name = dmi_get_system_info(DMI_BOARD_NAME);
450
451 if (!board_name)
452 return false;
453
454 return match_string(omen_thermal_profile_boards,
455 ARRAY_SIZE(omen_thermal_profile_boards),
456 board_name) >= 0;
457}
458
459static int omen_get_thermal_policy_version(void)
460{
461 unsigned char buffer[8] = { 0 };
462 int ret;
463
464 const char *board_name = dmi_get_system_info(DMI_BOARD_NAME);
465
466 if (board_name) {
467 int matches = match_string(omen_thermal_profile_force_v0_boards,
468 ARRAY_SIZE(omen_thermal_profile_force_v0_boards),
469 board_name);
470 if (matches >= 0)
471 return 0;
472 }
473
474 ret = hp_wmi_perform_query(HPWMI_GET_SYSTEM_DESIGN_DATA, HPWMI_GM,
475 &buffer, sizeof(buffer), sizeof(buffer));
476
477 if (ret)
478 return ret < 0 ? ret : -EINVAL;
479
480 return buffer[3];
481}
482
483static int omen_thermal_profile_get(void)
484{
485 u8 data;
486
487 int ret = ec_read(HP_OMEN_EC_THERMAL_PROFILE_OFFSET, &data);
488
489 if (ret)
490 return ret;
491
492 return data;
493}
494
495static int hp_wmi_fan_speed_max_set(int enabled)
496{
497 int ret;
498
499 ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_MAX_SET_QUERY, HPWMI_GM,
500 &enabled, sizeof(enabled), 0);
501
502 if (ret)
503 return ret < 0 ? ret : -EINVAL;
504
505 return enabled;
506}
507
508static int hp_wmi_fan_speed_max_get(void)
509{
510 int val = 0, ret;
511
512 ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_MAX_GET_QUERY, HPWMI_GM,
513 &val, zero_if_sup(val), sizeof(val));
514
515 if (ret)
516 return ret < 0 ? ret : -EINVAL;
517
518 return val;
519}
520
521static int __init hp_wmi_bios_2008_later(void)
522{
523 int state = 0;
524 int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, HPWMI_READ, &state,
525 zero_if_sup(state), sizeof(state));
526 if (!ret)
527 return 1;
528
529 return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO;
530}
531
532static int __init hp_wmi_bios_2009_later(void)
533{
534 u8 state[128];
535 int ret = hp_wmi_perform_query(HPWMI_FEATURE2_QUERY, HPWMI_READ, &state,
536 zero_if_sup(state), sizeof(state));
537 if (!ret)
538 return 1;
539
540 return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO;
541}
542
543static int __init hp_wmi_enable_hotkeys(void)
544{
545 int value = 0x6e;
546 int ret = hp_wmi_perform_query(HPWMI_BIOS_QUERY, HPWMI_WRITE, &value,
547 sizeof(value), 0);
548
549 return ret <= 0 ? ret : -EINVAL;
550}
551
552static int hp_wmi_set_block(void *data, bool blocked)
553{
554 enum hp_wmi_radio r = (long)data;
555 int query = BIT(r + 8) | ((!blocked) << r);
556 int ret;
557
558 ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_WRITE,
559 &query, sizeof(query), 0);
560
561 return ret <= 0 ? ret : -EINVAL;
562}
563
564static const struct rfkill_ops hp_wmi_rfkill_ops = {
565 .set_block = hp_wmi_set_block,
566};
567
568static bool hp_wmi_get_sw_state(enum hp_wmi_radio r)
569{
570 int mask = 0x200 << (r * 8);
571
572 int wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY);
573
574 /* TBD: Pass error */
575 WARN_ONCE(wireless < 0, "error executing HPWMI_WIRELESS_QUERY");
576
577 return !(wireless & mask);
578}
579
580static bool hp_wmi_get_hw_state(enum hp_wmi_radio r)
581{
582 int mask = 0x800 << (r * 8);
583
584 int wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY);
585
586 /* TBD: Pass error */
587 WARN_ONCE(wireless < 0, "error executing HPWMI_WIRELESS_QUERY");
588
589 return !(wireless & mask);
590}
591
592static int hp_wmi_rfkill2_set_block(void *data, bool blocked)
593{
594 int rfkill_id = (int)(long)data;
595 char buffer[4] = { 0x01, 0x00, rfkill_id, !blocked };
596 int ret;
597
598 ret = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_WRITE,
599 buffer, sizeof(buffer), 0);
600
601 return ret <= 0 ? ret : -EINVAL;
602}
603
604static const struct rfkill_ops hp_wmi_rfkill2_ops = {
605 .set_block = hp_wmi_rfkill2_set_block,
606};
607
608static int hp_wmi_rfkill2_refresh(void)
609{
610 struct bios_rfkill2_state state;
611 int err, i;
612
613 err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state,
614 zero_if_sup(state), sizeof(state));
615 if (err)
616 return err;
617
618 for (i = 0; i < rfkill2_count; i++) {
619 int num = rfkill2[i].num;
620 struct bios_rfkill2_device_state *devstate;
621
622 devstate = &state.device[num];
623
624 if (num >= state.count ||
625 devstate->rfkill_id != rfkill2[i].id) {
626 pr_warn("power configuration of the wireless devices unexpectedly changed\n");
627 continue;
628 }
629
630 rfkill_set_states(rfkill2[i].rfkill,
631 IS_SWBLOCKED(devstate->power),
632 IS_HWBLOCKED(devstate->power));
633 }
634
635 return 0;
636}
637
638static ssize_t display_show(struct device *dev, struct device_attribute *attr,
639 char *buf)
640{
641 int value = hp_wmi_read_int(HPWMI_DISPLAY_QUERY);
642
643 if (value < 0)
644 return value;
645 return sprintf(buf, "%d\n", value);
646}
647
648static ssize_t hddtemp_show(struct device *dev, struct device_attribute *attr,
649 char *buf)
650{
651 int value = hp_wmi_read_int(HPWMI_HDDTEMP_QUERY);
652
653 if (value < 0)
654 return value;
655 return sprintf(buf, "%d\n", value);
656}
657
658static ssize_t als_show(struct device *dev, struct device_attribute *attr,
659 char *buf)
660{
661 int value = hp_wmi_read_int(HPWMI_ALS_QUERY);
662
663 if (value < 0)
664 return value;
665 return sprintf(buf, "%d\n", value);
666}
667
668static ssize_t dock_show(struct device *dev, struct device_attribute *attr,
669 char *buf)
670{
671 int value = hp_wmi_get_dock_state();
672
673 if (value < 0)
674 return value;
675 return sprintf(buf, "%d\n", value);
676}
677
678static ssize_t tablet_show(struct device *dev, struct device_attribute *attr,
679 char *buf)
680{
681 int value = hp_wmi_get_tablet_mode();
682
683 if (value < 0)
684 return value;
685 return sprintf(buf, "%d\n", value);
686}
687
688static ssize_t postcode_show(struct device *dev, struct device_attribute *attr,
689 char *buf)
690{
691 /* Get the POST error code of previous boot failure. */
692 int value = hp_wmi_read_int(HPWMI_POSTCODEERROR_QUERY);
693
694 if (value < 0)
695 return value;
696 return sprintf(buf, "0x%x\n", value);
697}
698
699static ssize_t als_store(struct device *dev, struct device_attribute *attr,
700 const char *buf, size_t count)
701{
702 u32 tmp;
703 int ret;
704
705 ret = kstrtou32(buf, 10, &tmp);
706 if (ret)
707 return ret;
708
709 ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, HPWMI_WRITE, &tmp,
710 sizeof(tmp), 0);
711 if (ret)
712 return ret < 0 ? ret : -EINVAL;
713
714 return count;
715}
716
717static ssize_t postcode_store(struct device *dev, struct device_attribute *attr,
718 const char *buf, size_t count)
719{
720 u32 tmp = 1;
721 bool clear;
722 int ret;
723
724 ret = kstrtobool(buf, &clear);
725 if (ret)
726 return ret;
727
728 if (clear == false)
729 return -EINVAL;
730
731 /* Clear the POST error code. It is kept until cleared. */
732 ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, HPWMI_WRITE, &tmp,
733 sizeof(tmp), 0);
734 if (ret)
735 return ret < 0 ? ret : -EINVAL;
736
737 return count;
738}
739
740static DEVICE_ATTR_RO(display);
741static DEVICE_ATTR_RO(hddtemp);
742static DEVICE_ATTR_RW(als);
743static DEVICE_ATTR_RO(dock);
744static DEVICE_ATTR_RO(tablet);
745static DEVICE_ATTR_RW(postcode);
746
747static struct attribute *hp_wmi_attrs[] = {
748 &dev_attr_display.attr,
749 &dev_attr_hddtemp.attr,
750 &dev_attr_als.attr,
751 &dev_attr_dock.attr,
752 &dev_attr_tablet.attr,
753 &dev_attr_postcode.attr,
754 NULL,
755};
756ATTRIBUTE_GROUPS(hp_wmi);
757
758static void hp_wmi_notify(u32 value, void *context)
759{
760 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
761 u32 event_id, event_data;
762 union acpi_object *obj;
763 acpi_status status;
764 u32 *location;
765 int key_code;
766
767 status = wmi_get_event_data(value, &response);
768 if (status != AE_OK) {
769 pr_info("bad event status 0x%x\n", status);
770 return;
771 }
772
773 obj = (union acpi_object *)response.pointer;
774
775 if (!obj)
776 return;
777 if (obj->type != ACPI_TYPE_BUFFER) {
778 pr_info("Unknown response received %d\n", obj->type);
779 kfree(obj);
780 return;
781 }
782
783 /*
784 * Depending on ACPI version the concatenation of id and event data
785 * inside _WED function will result in a 8 or 16 byte buffer.
786 */
787 location = (u32 *)obj->buffer.pointer;
788 if (obj->buffer.length == 8) {
789 event_id = *location;
790 event_data = *(location + 1);
791 } else if (obj->buffer.length == 16) {
792 event_id = *location;
793 event_data = *(location + 2);
794 } else {
795 pr_info("Unknown buffer length %d\n", obj->buffer.length);
796 kfree(obj);
797 return;
798 }
799 kfree(obj);
800
801 switch (event_id) {
802 case HPWMI_DOCK_EVENT:
803 if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit))
804 input_report_switch(hp_wmi_input_dev, SW_DOCK,
805 hp_wmi_get_dock_state());
806 if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit))
807 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
808 hp_wmi_get_tablet_mode());
809 input_sync(hp_wmi_input_dev);
810 break;
811 case HPWMI_PARK_HDD:
812 break;
813 case HPWMI_SMART_ADAPTER:
814 break;
815 case HPWMI_BEZEL_BUTTON:
816 case HPWMI_OMEN_KEY:
817 key_code = hp_wmi_read_int(HPWMI_HOTKEY_QUERY);
818 if (key_code < 0)
819 break;
820
821 if (!sparse_keymap_report_event(hp_wmi_input_dev,
822 key_code, 1, true))
823 pr_info("Unknown key code - 0x%x\n", key_code);
824 break;
825 case HPWMI_WIRELESS:
826 if (rfkill2_count) {
827 hp_wmi_rfkill2_refresh();
828 break;
829 }
830
831 if (wifi_rfkill)
832 rfkill_set_states(wifi_rfkill,
833 hp_wmi_get_sw_state(HPWMI_WIFI),
834 hp_wmi_get_hw_state(HPWMI_WIFI));
835 if (bluetooth_rfkill)
836 rfkill_set_states(bluetooth_rfkill,
837 hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
838 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
839 if (wwan_rfkill)
840 rfkill_set_states(wwan_rfkill,
841 hp_wmi_get_sw_state(HPWMI_WWAN),
842 hp_wmi_get_hw_state(HPWMI_WWAN));
843 break;
844 case HPWMI_CPU_BATTERY_THROTTLE:
845 pr_info("Unimplemented CPU throttle because of 3 Cell battery event detected\n");
846 break;
847 case HPWMI_LOCK_SWITCH:
848 break;
849 case HPWMI_LID_SWITCH:
850 break;
851 case HPWMI_SCREEN_ROTATION:
852 break;
853 case HPWMI_COOLSENSE_SYSTEM_MOBILE:
854 break;
855 case HPWMI_COOLSENSE_SYSTEM_HOT:
856 break;
857 case HPWMI_PROXIMITY_SENSOR:
858 break;
859 case HPWMI_BACKLIT_KB_BRIGHTNESS:
860 break;
861 case HPWMI_PEAKSHIFT_PERIOD:
862 break;
863 case HPWMI_BATTERY_CHARGE_PERIOD:
864 break;
865 case HPWMI_SANITIZATION_MODE:
866 break;
867 case HPWMI_SMART_EXPERIENCE_APP:
868 break;
869 default:
870 pr_info("Unknown event_id - %d - 0x%x\n", event_id, event_data);
871 break;
872 }
873}
874
875static int __init hp_wmi_input_setup(void)
876{
877 acpi_status status;
878 int err, val;
879
880 hp_wmi_input_dev = input_allocate_device();
881 if (!hp_wmi_input_dev)
882 return -ENOMEM;
883
884 hp_wmi_input_dev->name = "HP WMI hotkeys";
885 hp_wmi_input_dev->phys = "wmi/input0";
886 hp_wmi_input_dev->id.bustype = BUS_HOST;
887
888 __set_bit(EV_SW, hp_wmi_input_dev->evbit);
889
890 /* Dock */
891 val = hp_wmi_get_dock_state();
892 if (!(val < 0)) {
893 __set_bit(SW_DOCK, hp_wmi_input_dev->swbit);
894 input_report_switch(hp_wmi_input_dev, SW_DOCK, val);
895 }
896
897 /* Tablet mode */
898 val = hp_wmi_get_tablet_mode();
899 if (!(val < 0)) {
900 __set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit);
901 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, val);
902 }
903
904 err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL);
905 if (err)
906 goto err_free_dev;
907
908 /* Set initial hardware state */
909 input_sync(hp_wmi_input_dev);
910
911 if (!hp_wmi_bios_2009_later() && hp_wmi_bios_2008_later())
912 hp_wmi_enable_hotkeys();
913
914 status = wmi_install_notify_handler(HPWMI_EVENT_GUID, hp_wmi_notify, NULL);
915 if (ACPI_FAILURE(status)) {
916 err = -EIO;
917 goto err_free_dev;
918 }
919
920 err = input_register_device(hp_wmi_input_dev);
921 if (err)
922 goto err_uninstall_notifier;
923
924 return 0;
925
926 err_uninstall_notifier:
927 wmi_remove_notify_handler(HPWMI_EVENT_GUID);
928 err_free_dev:
929 input_free_device(hp_wmi_input_dev);
930 return err;
931}
932
933static void hp_wmi_input_destroy(void)
934{
935 wmi_remove_notify_handler(HPWMI_EVENT_GUID);
936 input_unregister_device(hp_wmi_input_dev);
937}
938
939static int __init hp_wmi_rfkill_setup(struct platform_device *device)
940{
941 int err, wireless;
942
943 wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY);
944 if (wireless < 0)
945 return wireless;
946
947 err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_WRITE, &wireless,
948 sizeof(wireless), 0);
949 if (err)
950 return err;
951
952 if (wireless & 0x1) {
953 wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev,
954 RFKILL_TYPE_WLAN,
955 &hp_wmi_rfkill_ops,
956 (void *) HPWMI_WIFI);
957 if (!wifi_rfkill)
958 return -ENOMEM;
959 rfkill_init_sw_state(wifi_rfkill,
960 hp_wmi_get_sw_state(HPWMI_WIFI));
961 rfkill_set_hw_state(wifi_rfkill,
962 hp_wmi_get_hw_state(HPWMI_WIFI));
963 err = rfkill_register(wifi_rfkill);
964 if (err)
965 goto register_wifi_error;
966 }
967
968 if (wireless & 0x2) {
969 bluetooth_rfkill = rfkill_alloc("hp-bluetooth", &device->dev,
970 RFKILL_TYPE_BLUETOOTH,
971 &hp_wmi_rfkill_ops,
972 (void *) HPWMI_BLUETOOTH);
973 if (!bluetooth_rfkill) {
974 err = -ENOMEM;
975 goto register_bluetooth_error;
976 }
977 rfkill_init_sw_state(bluetooth_rfkill,
978 hp_wmi_get_sw_state(HPWMI_BLUETOOTH));
979 rfkill_set_hw_state(bluetooth_rfkill,
980 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
981 err = rfkill_register(bluetooth_rfkill);
982 if (err)
983 goto register_bluetooth_error;
984 }
985
986 if (wireless & 0x4) {
987 wwan_rfkill = rfkill_alloc("hp-wwan", &device->dev,
988 RFKILL_TYPE_WWAN,
989 &hp_wmi_rfkill_ops,
990 (void *) HPWMI_WWAN);
991 if (!wwan_rfkill) {
992 err = -ENOMEM;
993 goto register_wwan_error;
994 }
995 rfkill_init_sw_state(wwan_rfkill,
996 hp_wmi_get_sw_state(HPWMI_WWAN));
997 rfkill_set_hw_state(wwan_rfkill,
998 hp_wmi_get_hw_state(HPWMI_WWAN));
999 err = rfkill_register(wwan_rfkill);
1000 if (err)
1001 goto register_wwan_error;
1002 }
1003
1004 return 0;
1005
1006register_wwan_error:
1007 rfkill_destroy(wwan_rfkill);
1008 wwan_rfkill = NULL;
1009 if (bluetooth_rfkill)
1010 rfkill_unregister(bluetooth_rfkill);
1011register_bluetooth_error:
1012 rfkill_destroy(bluetooth_rfkill);
1013 bluetooth_rfkill = NULL;
1014 if (wifi_rfkill)
1015 rfkill_unregister(wifi_rfkill);
1016register_wifi_error:
1017 rfkill_destroy(wifi_rfkill);
1018 wifi_rfkill = NULL;
1019 return err;
1020}
1021
1022static int __init hp_wmi_rfkill2_setup(struct platform_device *device)
1023{
1024 struct bios_rfkill2_state state;
1025 int err, i;
1026
1027 err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state,
1028 zero_if_sup(state), sizeof(state));
1029 if (err)
1030 return err < 0 ? err : -EINVAL;
1031
1032 if (state.count > HPWMI_MAX_RFKILL2_DEVICES) {
1033 pr_warn("unable to parse 0x1b query output\n");
1034 return -EINVAL;
1035 }
1036
1037 for (i = 0; i < state.count; i++) {
1038 struct rfkill *rfkill;
1039 enum rfkill_type type;
1040 char *name;
1041
1042 switch (state.device[i].radio_type) {
1043 case HPWMI_WIFI:
1044 type = RFKILL_TYPE_WLAN;
1045 name = "hp-wifi";
1046 break;
1047 case HPWMI_BLUETOOTH:
1048 type = RFKILL_TYPE_BLUETOOTH;
1049 name = "hp-bluetooth";
1050 break;
1051 case HPWMI_WWAN:
1052 type = RFKILL_TYPE_WWAN;
1053 name = "hp-wwan";
1054 break;
1055 case HPWMI_GPS:
1056 type = RFKILL_TYPE_GPS;
1057 name = "hp-gps";
1058 break;
1059 default:
1060 pr_warn("unknown device type 0x%x\n",
1061 state.device[i].radio_type);
1062 continue;
1063 }
1064
1065 if (!state.device[i].vendor_id) {
1066 pr_warn("zero device %d while %d reported\n",
1067 i, state.count);
1068 continue;
1069 }
1070
1071 rfkill = rfkill_alloc(name, &device->dev, type,
1072 &hp_wmi_rfkill2_ops, (void *)(long)i);
1073 if (!rfkill) {
1074 err = -ENOMEM;
1075 goto fail;
1076 }
1077
1078 rfkill2[rfkill2_count].id = state.device[i].rfkill_id;
1079 rfkill2[rfkill2_count].num = i;
1080 rfkill2[rfkill2_count].rfkill = rfkill;
1081
1082 rfkill_init_sw_state(rfkill,
1083 IS_SWBLOCKED(state.device[i].power));
1084 rfkill_set_hw_state(rfkill,
1085 IS_HWBLOCKED(state.device[i].power));
1086
1087 if (!(state.device[i].power & HPWMI_POWER_BIOS))
1088 pr_info("device %s blocked by BIOS\n", name);
1089
1090 err = rfkill_register(rfkill);
1091 if (err) {
1092 rfkill_destroy(rfkill);
1093 goto fail;
1094 }
1095
1096 rfkill2_count++;
1097 }
1098
1099 return 0;
1100fail:
1101 for (; rfkill2_count > 0; rfkill2_count--) {
1102 rfkill_unregister(rfkill2[rfkill2_count - 1].rfkill);
1103 rfkill_destroy(rfkill2[rfkill2_count - 1].rfkill);
1104 }
1105 return err;
1106}
1107
1108static int platform_profile_omen_get(struct platform_profile_handler *pprof,
1109 enum platform_profile_option *profile)
1110{
1111 int tp;
1112
1113 tp = omen_thermal_profile_get();
1114 if (tp < 0)
1115 return tp;
1116
1117 switch (tp) {
1118 case HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE:
1119 case HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE:
1120 *profile = PLATFORM_PROFILE_PERFORMANCE;
1121 break;
1122 case HP_OMEN_V0_THERMAL_PROFILE_DEFAULT:
1123 case HP_OMEN_V1_THERMAL_PROFILE_DEFAULT:
1124 *profile = PLATFORM_PROFILE_BALANCED;
1125 break;
1126 case HP_OMEN_V0_THERMAL_PROFILE_COOL:
1127 case HP_OMEN_V1_THERMAL_PROFILE_COOL:
1128 *profile = PLATFORM_PROFILE_COOL;
1129 break;
1130 default:
1131 return -EINVAL;
1132 }
1133
1134 return 0;
1135}
1136
1137static int platform_profile_omen_set(struct platform_profile_handler *pprof,
1138 enum platform_profile_option profile)
1139{
1140 int err, tp, tp_version;
1141
1142 tp_version = omen_get_thermal_policy_version();
1143
1144 if (tp_version < 0 || tp_version > 1)
1145 return -EOPNOTSUPP;
1146
1147 switch (profile) {
1148 case PLATFORM_PROFILE_PERFORMANCE:
1149 if (tp_version == 0)
1150 tp = HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE;
1151 else
1152 tp = HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE;
1153 break;
1154 case PLATFORM_PROFILE_BALANCED:
1155 if (tp_version == 0)
1156 tp = HP_OMEN_V0_THERMAL_PROFILE_DEFAULT;
1157 else
1158 tp = HP_OMEN_V1_THERMAL_PROFILE_DEFAULT;
1159 break;
1160 case PLATFORM_PROFILE_COOL:
1161 if (tp_version == 0)
1162 tp = HP_OMEN_V0_THERMAL_PROFILE_COOL;
1163 else
1164 tp = HP_OMEN_V1_THERMAL_PROFILE_COOL;
1165 break;
1166 default:
1167 return -EOPNOTSUPP;
1168 }
1169
1170 err = omen_thermal_profile_set(tp);
1171 if (err < 0)
1172 return err;
1173
1174 return 0;
1175}
1176
1177static int thermal_profile_get(void)
1178{
1179 return hp_wmi_read_int(HPWMI_THERMAL_PROFILE_QUERY);
1180}
1181
1182static int thermal_profile_set(int thermal_profile)
1183{
1184 return hp_wmi_perform_query(HPWMI_THERMAL_PROFILE_QUERY, HPWMI_WRITE, &thermal_profile,
1185 sizeof(thermal_profile), 0);
1186}
1187
1188static int hp_wmi_platform_profile_get(struct platform_profile_handler *pprof,
1189 enum platform_profile_option *profile)
1190{
1191 int tp;
1192
1193 tp = thermal_profile_get();
1194 if (tp < 0)
1195 return tp;
1196
1197 switch (tp) {
1198 case HP_THERMAL_PROFILE_PERFORMANCE:
1199 *profile = PLATFORM_PROFILE_PERFORMANCE;
1200 break;
1201 case HP_THERMAL_PROFILE_DEFAULT:
1202 *profile = PLATFORM_PROFILE_BALANCED;
1203 break;
1204 case HP_THERMAL_PROFILE_COOL:
1205 *profile = PLATFORM_PROFILE_COOL;
1206 break;
1207 case HP_THERMAL_PROFILE_QUIET:
1208 *profile = PLATFORM_PROFILE_QUIET;
1209 break;
1210 default:
1211 return -EINVAL;
1212 }
1213
1214 return 0;
1215}
1216
1217static int hp_wmi_platform_profile_set(struct platform_profile_handler *pprof,
1218 enum platform_profile_option profile)
1219{
1220 int err, tp;
1221
1222 switch (profile) {
1223 case PLATFORM_PROFILE_PERFORMANCE:
1224 tp = HP_THERMAL_PROFILE_PERFORMANCE;
1225 break;
1226 case PLATFORM_PROFILE_BALANCED:
1227 tp = HP_THERMAL_PROFILE_DEFAULT;
1228 break;
1229 case PLATFORM_PROFILE_COOL:
1230 tp = HP_THERMAL_PROFILE_COOL;
1231 break;
1232 case PLATFORM_PROFILE_QUIET:
1233 tp = HP_THERMAL_PROFILE_QUIET;
1234 break;
1235 default:
1236 return -EOPNOTSUPP;
1237 }
1238
1239 err = thermal_profile_set(tp);
1240 if (err)
1241 return err;
1242
1243 return 0;
1244}
1245
1246static int thermal_profile_setup(void)
1247{
1248 int err, tp;
1249
1250 if (is_omen_thermal_profile()) {
1251 tp = omen_thermal_profile_get();
1252 if (tp < 0)
1253 return tp;
1254
1255 /*
1256 * call thermal profile write command to ensure that the
1257 * firmware correctly sets the OEM variables
1258 */
1259
1260 err = omen_thermal_profile_set(tp);
1261 if (err < 0)
1262 return err;
1263
1264 platform_profile_handler.profile_get = platform_profile_omen_get;
1265 platform_profile_handler.profile_set = platform_profile_omen_set;
1266 } else {
1267 tp = thermal_profile_get();
1268
1269 if (tp < 0)
1270 return tp;
1271
1272 /*
1273 * call thermal profile write command to ensure that the
1274 * firmware correctly sets the OEM variables for the DPTF
1275 */
1276 err = thermal_profile_set(tp);
1277 if (err)
1278 return err;
1279
1280 platform_profile_handler.profile_get = hp_wmi_platform_profile_get;
1281 platform_profile_handler.profile_set = hp_wmi_platform_profile_set;
1282
1283 set_bit(PLATFORM_PROFILE_QUIET, platform_profile_handler.choices);
1284 }
1285
1286 set_bit(PLATFORM_PROFILE_COOL, platform_profile_handler.choices);
1287 set_bit(PLATFORM_PROFILE_BALANCED, platform_profile_handler.choices);
1288 set_bit(PLATFORM_PROFILE_PERFORMANCE, platform_profile_handler.choices);
1289
1290 err = platform_profile_register(&platform_profile_handler);
1291 if (err)
1292 return err;
1293
1294 platform_profile_support = true;
1295
1296 return 0;
1297}
1298
1299static int hp_wmi_hwmon_init(void);
1300
1301static int __init hp_wmi_bios_setup(struct platform_device *device)
1302{
1303 int err;
1304 /* clear detected rfkill devices */
1305 wifi_rfkill = NULL;
1306 bluetooth_rfkill = NULL;
1307 wwan_rfkill = NULL;
1308 rfkill2_count = 0;
1309
1310 /*
1311 * In pre-2009 BIOS, command 1Bh return 0x4 to indicate that
1312 * BIOS no longer controls the power for the wireless
1313 * devices. All features supported by this command will no
1314 * longer be supported.
1315 */
1316 if (!hp_wmi_bios_2009_later()) {
1317 if (hp_wmi_rfkill_setup(device))
1318 hp_wmi_rfkill2_setup(device);
1319 }
1320
1321 err = hp_wmi_hwmon_init();
1322
1323 if (err < 0)
1324 return err;
1325
1326 thermal_profile_setup();
1327
1328 return 0;
1329}
1330
1331static int __exit hp_wmi_bios_remove(struct platform_device *device)
1332{
1333 int i;
1334
1335 for (i = 0; i < rfkill2_count; i++) {
1336 rfkill_unregister(rfkill2[i].rfkill);
1337 rfkill_destroy(rfkill2[i].rfkill);
1338 }
1339
1340 if (wifi_rfkill) {
1341 rfkill_unregister(wifi_rfkill);
1342 rfkill_destroy(wifi_rfkill);
1343 }
1344 if (bluetooth_rfkill) {
1345 rfkill_unregister(bluetooth_rfkill);
1346 rfkill_destroy(bluetooth_rfkill);
1347 }
1348 if (wwan_rfkill) {
1349 rfkill_unregister(wwan_rfkill);
1350 rfkill_destroy(wwan_rfkill);
1351 }
1352
1353 if (platform_profile_support)
1354 platform_profile_remove();
1355
1356 return 0;
1357}
1358
1359static int hp_wmi_resume_handler(struct device *device)
1360{
1361 /*
1362 * Hardware state may have changed while suspended, so trigger
1363 * input events for the current state. As this is a switch,
1364 * the input layer will only actually pass it on if the state
1365 * changed.
1366 */
1367 if (hp_wmi_input_dev) {
1368 if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit))
1369 input_report_switch(hp_wmi_input_dev, SW_DOCK,
1370 hp_wmi_get_dock_state());
1371 if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit))
1372 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
1373 hp_wmi_get_tablet_mode());
1374 input_sync(hp_wmi_input_dev);
1375 }
1376
1377 if (rfkill2_count)
1378 hp_wmi_rfkill2_refresh();
1379
1380 if (wifi_rfkill)
1381 rfkill_set_states(wifi_rfkill,
1382 hp_wmi_get_sw_state(HPWMI_WIFI),
1383 hp_wmi_get_hw_state(HPWMI_WIFI));
1384 if (bluetooth_rfkill)
1385 rfkill_set_states(bluetooth_rfkill,
1386 hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
1387 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
1388 if (wwan_rfkill)
1389 rfkill_set_states(wwan_rfkill,
1390 hp_wmi_get_sw_state(HPWMI_WWAN),
1391 hp_wmi_get_hw_state(HPWMI_WWAN));
1392
1393 return 0;
1394}
1395
1396static const struct dev_pm_ops hp_wmi_pm_ops = {
1397 .resume = hp_wmi_resume_handler,
1398 .restore = hp_wmi_resume_handler,
1399};
1400
1401static struct platform_driver hp_wmi_driver = {
1402 .driver = {
1403 .name = "hp-wmi",
1404 .pm = &hp_wmi_pm_ops,
1405 .dev_groups = hp_wmi_groups,
1406 },
1407 .remove = __exit_p(hp_wmi_bios_remove),
1408};
1409
1410static umode_t hp_wmi_hwmon_is_visible(const void *data,
1411 enum hwmon_sensor_types type,
1412 u32 attr, int channel)
1413{
1414 switch (type) {
1415 case hwmon_pwm:
1416 return 0644;
1417 case hwmon_fan:
1418 if (hp_wmi_get_fan_speed(channel) >= 0)
1419 return 0444;
1420 break;
1421 default:
1422 return 0;
1423 }
1424
1425 return 0;
1426}
1427
1428static int hp_wmi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
1429 u32 attr, int channel, long *val)
1430{
1431 int ret;
1432
1433 switch (type) {
1434 case hwmon_fan:
1435 ret = hp_wmi_get_fan_speed(channel);
1436
1437 if (ret < 0)
1438 return ret;
1439 *val = ret;
1440 return 0;
1441 case hwmon_pwm:
1442 switch (hp_wmi_fan_speed_max_get()) {
1443 case 0:
1444 /* 0 is automatic fan, which is 2 for hwmon */
1445 *val = 2;
1446 return 0;
1447 case 1:
1448 /* 1 is max fan, which is 0
1449 * (no fan speed control) for hwmon
1450 */
1451 *val = 0;
1452 return 0;
1453 default:
1454 /* shouldn't happen */
1455 return -ENODATA;
1456 }
1457 default:
1458 return -EINVAL;
1459 }
1460}
1461
1462static int hp_wmi_hwmon_write(struct device *dev, enum hwmon_sensor_types type,
1463 u32 attr, int channel, long val)
1464{
1465 switch (type) {
1466 case hwmon_pwm:
1467 switch (val) {
1468 case 0:
1469 /* 0 is no fan speed control (max), which is 1 for us */
1470 return hp_wmi_fan_speed_max_set(1);
1471 case 2:
1472 /* 2 is automatic speed control, which is 0 for us */
1473 return hp_wmi_fan_speed_max_set(0);
1474 default:
1475 /* we don't support manual fan speed control */
1476 return -EINVAL;
1477 }
1478 default:
1479 return -EOPNOTSUPP;
1480 }
1481}
1482
1483static const struct hwmon_channel_info *info[] = {
1484 HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT, HWMON_F_INPUT),
1485 HWMON_CHANNEL_INFO(pwm, HWMON_PWM_ENABLE),
1486 NULL
1487};
1488
1489static const struct hwmon_ops ops = {
1490 .is_visible = hp_wmi_hwmon_is_visible,
1491 .read = hp_wmi_hwmon_read,
1492 .write = hp_wmi_hwmon_write,
1493};
1494
1495static const struct hwmon_chip_info chip_info = {
1496 .ops = &ops,
1497 .info = info,
1498};
1499
1500static int hp_wmi_hwmon_init(void)
1501{
1502 struct device *dev = &hp_wmi_platform_dev->dev;
1503 struct device *hwmon;
1504
1505 hwmon = devm_hwmon_device_register_with_info(dev, "hp", &hp_wmi_driver,
1506 &chip_info, NULL);
1507
1508 if (IS_ERR(hwmon)) {
1509 dev_err(dev, "Could not register hp hwmon device\n");
1510 return PTR_ERR(hwmon);
1511 }
1512
1513 return 0;
1514}
1515
1516static int __init hp_wmi_init(void)
1517{
1518 int event_capable = wmi_has_guid(HPWMI_EVENT_GUID);
1519 int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID);
1520 int err, tmp = 0;
1521
1522 if (!bios_capable && !event_capable)
1523 return -ENODEV;
1524
1525 if (hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, HPWMI_READ, &tmp,
1526 sizeof(tmp), sizeof(tmp)) == HPWMI_RET_INVALID_PARAMETERS)
1527 zero_insize_support = true;
1528
1529 if (event_capable) {
1530 err = hp_wmi_input_setup();
1531 if (err)
1532 return err;
1533 }
1534
1535 if (bios_capable) {
1536 hp_wmi_platform_dev =
1537 platform_device_register_simple("hp-wmi", PLATFORM_DEVID_NONE, NULL, 0);
1538 if (IS_ERR(hp_wmi_platform_dev)) {
1539 err = PTR_ERR(hp_wmi_platform_dev);
1540 goto err_destroy_input;
1541 }
1542
1543 err = platform_driver_probe(&hp_wmi_driver, hp_wmi_bios_setup);
1544 if (err)
1545 goto err_unregister_device;
1546 }
1547
1548 return 0;
1549
1550err_unregister_device:
1551 platform_device_unregister(hp_wmi_platform_dev);
1552err_destroy_input:
1553 if (event_capable)
1554 hp_wmi_input_destroy();
1555
1556 return err;
1557}
1558module_init(hp_wmi_init);
1559
1560static void __exit hp_wmi_exit(void)
1561{
1562 if (wmi_has_guid(HPWMI_EVENT_GUID))
1563 hp_wmi_input_destroy();
1564
1565 if (hp_wmi_platform_dev) {
1566 platform_device_unregister(hp_wmi_platform_dev);
1567 platform_driver_unregister(&hp_wmi_driver);
1568 }
1569}
1570module_exit(hp_wmi_exit);
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * HP WMI hotkeys
4 *
5 * Copyright (C) 2008 Red Hat <mjg@redhat.com>
6 * Copyright (C) 2010, 2011 Anssi Hannula <anssi.hannula@iki.fi>
7 *
8 * Portions based on wistron_btns.c:
9 * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
10 * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
11 * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
12 */
13
14#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
15
16#include <linux/kernel.h>
17#include <linux/module.h>
18#include <linux/init.h>
19#include <linux/slab.h>
20#include <linux/types.h>
21#include <linux/input.h>
22#include <linux/input/sparse-keymap.h>
23#include <linux/platform_device.h>
24#include <linux/platform_profile.h>
25#include <linux/hwmon.h>
26#include <linux/acpi.h>
27#include <linux/mutex.h>
28#include <linux/cleanup.h>
29#include <linux/power_supply.h>
30#include <linux/rfkill.h>
31#include <linux/string.h>
32#include <linux/dmi.h>
33
34MODULE_AUTHOR("Matthew Garrett <mjg59@srcf.ucam.org>");
35MODULE_DESCRIPTION("HP laptop WMI driver");
36MODULE_LICENSE("GPL");
37
38MODULE_ALIAS("wmi:95F24279-4D7B-4334-9387-ACCDC67EF61C");
39MODULE_ALIAS("wmi:5FB7F034-2C63-45E9-BE91-3D44E2C707E4");
40
41#define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C"
42#define HPWMI_BIOS_GUID "5FB7F034-2C63-45E9-BE91-3D44E2C707E4"
43
44#define HP_OMEN_EC_THERMAL_PROFILE_FLAGS_OFFSET 0x62
45#define HP_OMEN_EC_THERMAL_PROFILE_TIMER_OFFSET 0x63
46#define HP_OMEN_EC_THERMAL_PROFILE_OFFSET 0x95
47
48#define ACPI_AC_CLASS "ac_adapter"
49
50#define zero_if_sup(tmp) (zero_insize_support?0:sizeof(tmp)) // use when zero insize is required
51
52/* DMI board names of devices that should use the omen specific path for
53 * thermal profiles.
54 * This was obtained by taking a look in the windows omen command center
55 * app and parsing a json file that they use to figure out what capabilities
56 * the device should have.
57 * A device is considered an omen if the DisplayName in that list contains
58 * "OMEN", and it can use the thermal profile stuff if the "Feature" array
59 * contains "PerformanceControl".
60 */
61static const char * const omen_thermal_profile_boards[] = {
62 "84DA", "84DB", "84DC", "8574", "8575", "860A", "87B5", "8572", "8573",
63 "8600", "8601", "8602", "8605", "8606", "8607", "8746", "8747", "8749",
64 "874A", "8603", "8604", "8748", "886B", "886C", "878A", "878B", "878C",
65 "88C8", "88CB", "8786", "8787", "8788", "88D1", "88D2", "88F4", "88FD",
66 "88F5", "88F6", "88F7", "88FE", "88FF", "8900", "8901", "8902", "8912",
67 "8917", "8918", "8949", "894A", "89EB", "8BAD", "8A42", "8A15"
68};
69
70/* DMI Board names of Omen laptops that are specifically set to be thermal
71 * profile version 0 by the Omen Command Center app, regardless of what
72 * the get system design information WMI call returns
73 */
74static const char * const omen_thermal_profile_force_v0_boards[] = {
75 "8607", "8746", "8747", "8749", "874A", "8748"
76};
77
78/* DMI board names of Omen laptops that have a thermal profile timer which will
79 * cause the embedded controller to set the thermal profile back to
80 * "balanced" when reaching zero.
81 */
82static const char * const omen_timed_thermal_profile_boards[] = {
83 "8BAD", "8A42", "8A15"
84};
85
86/* DMI Board names of Victus laptops */
87static const char * const victus_thermal_profile_boards[] = {
88 "8A25"
89};
90
91enum hp_wmi_radio {
92 HPWMI_WIFI = 0x0,
93 HPWMI_BLUETOOTH = 0x1,
94 HPWMI_WWAN = 0x2,
95 HPWMI_GPS = 0x3,
96};
97
98enum hp_wmi_event_ids {
99 HPWMI_DOCK_EVENT = 0x01,
100 HPWMI_PARK_HDD = 0x02,
101 HPWMI_SMART_ADAPTER = 0x03,
102 HPWMI_BEZEL_BUTTON = 0x04,
103 HPWMI_WIRELESS = 0x05,
104 HPWMI_CPU_BATTERY_THROTTLE = 0x06,
105 HPWMI_LOCK_SWITCH = 0x07,
106 HPWMI_LID_SWITCH = 0x08,
107 HPWMI_SCREEN_ROTATION = 0x09,
108 HPWMI_COOLSENSE_SYSTEM_MOBILE = 0x0A,
109 HPWMI_COOLSENSE_SYSTEM_HOT = 0x0B,
110 HPWMI_PROXIMITY_SENSOR = 0x0C,
111 HPWMI_BACKLIT_KB_BRIGHTNESS = 0x0D,
112 HPWMI_PEAKSHIFT_PERIOD = 0x0F,
113 HPWMI_BATTERY_CHARGE_PERIOD = 0x10,
114 HPWMI_SANITIZATION_MODE = 0x17,
115 HPWMI_CAMERA_TOGGLE = 0x1A,
116 HPWMI_OMEN_KEY = 0x1D,
117 HPWMI_SMART_EXPERIENCE_APP = 0x21,
118};
119
120/*
121 * struct bios_args buffer is dynamically allocated. New WMI command types
122 * were introduced that exceeds 128-byte data size. Changes to handle
123 * the data size allocation scheme were kept in hp_wmi_perform_qurey function.
124 */
125struct bios_args {
126 u32 signature;
127 u32 command;
128 u32 commandtype;
129 u32 datasize;
130 u8 data[];
131};
132
133enum hp_wmi_commandtype {
134 HPWMI_DISPLAY_QUERY = 0x01,
135 HPWMI_HDDTEMP_QUERY = 0x02,
136 HPWMI_ALS_QUERY = 0x03,
137 HPWMI_HARDWARE_QUERY = 0x04,
138 HPWMI_WIRELESS_QUERY = 0x05,
139 HPWMI_BATTERY_QUERY = 0x07,
140 HPWMI_BIOS_QUERY = 0x09,
141 HPWMI_FEATURE_QUERY = 0x0b,
142 HPWMI_HOTKEY_QUERY = 0x0c,
143 HPWMI_FEATURE2_QUERY = 0x0d,
144 HPWMI_WIRELESS2_QUERY = 0x1b,
145 HPWMI_POSTCODEERROR_QUERY = 0x2a,
146 HPWMI_SYSTEM_DEVICE_MODE = 0x40,
147 HPWMI_THERMAL_PROFILE_QUERY = 0x4c,
148};
149
150enum hp_wmi_gm_commandtype {
151 HPWMI_FAN_SPEED_GET_QUERY = 0x11,
152 HPWMI_SET_PERFORMANCE_MODE = 0x1A,
153 HPWMI_FAN_SPEED_MAX_GET_QUERY = 0x26,
154 HPWMI_FAN_SPEED_MAX_SET_QUERY = 0x27,
155 HPWMI_GET_SYSTEM_DESIGN_DATA = 0x28,
156};
157
158enum hp_wmi_command {
159 HPWMI_READ = 0x01,
160 HPWMI_WRITE = 0x02,
161 HPWMI_ODM = 0x03,
162 HPWMI_GM = 0x20008,
163};
164
165enum hp_wmi_hardware_mask {
166 HPWMI_DOCK_MASK = 0x01,
167 HPWMI_TABLET_MASK = 0x04,
168};
169
170struct bios_return {
171 u32 sigpass;
172 u32 return_code;
173};
174
175enum hp_return_value {
176 HPWMI_RET_WRONG_SIGNATURE = 0x02,
177 HPWMI_RET_UNKNOWN_COMMAND = 0x03,
178 HPWMI_RET_UNKNOWN_CMDTYPE = 0x04,
179 HPWMI_RET_INVALID_PARAMETERS = 0x05,
180};
181
182enum hp_wireless2_bits {
183 HPWMI_POWER_STATE = 0x01,
184 HPWMI_POWER_SOFT = 0x02,
185 HPWMI_POWER_BIOS = 0x04,
186 HPWMI_POWER_HARD = 0x08,
187 HPWMI_POWER_FW_OR_HW = HPWMI_POWER_BIOS | HPWMI_POWER_HARD,
188};
189
190enum hp_thermal_profile_omen_v0 {
191 HP_OMEN_V0_THERMAL_PROFILE_DEFAULT = 0x00,
192 HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE = 0x01,
193 HP_OMEN_V0_THERMAL_PROFILE_COOL = 0x02,
194};
195
196enum hp_thermal_profile_omen_v1 {
197 HP_OMEN_V1_THERMAL_PROFILE_DEFAULT = 0x30,
198 HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE = 0x31,
199 HP_OMEN_V1_THERMAL_PROFILE_COOL = 0x50,
200};
201
202enum hp_thermal_profile_omen_flags {
203 HP_OMEN_EC_FLAGS_TURBO = 0x04,
204 HP_OMEN_EC_FLAGS_NOTIMER = 0x02,
205 HP_OMEN_EC_FLAGS_JUSTSET = 0x01,
206};
207
208enum hp_thermal_profile_victus {
209 HP_VICTUS_THERMAL_PROFILE_DEFAULT = 0x00,
210 HP_VICTUS_THERMAL_PROFILE_PERFORMANCE = 0x01,
211 HP_VICTUS_THERMAL_PROFILE_QUIET = 0x03,
212};
213
214enum hp_thermal_profile {
215 HP_THERMAL_PROFILE_PERFORMANCE = 0x00,
216 HP_THERMAL_PROFILE_DEFAULT = 0x01,
217 HP_THERMAL_PROFILE_COOL = 0x02,
218 HP_THERMAL_PROFILE_QUIET = 0x03,
219};
220
221#define IS_HWBLOCKED(x) ((x & HPWMI_POWER_FW_OR_HW) != HPWMI_POWER_FW_OR_HW)
222#define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT)
223
224struct bios_rfkill2_device_state {
225 u8 radio_type;
226 u8 bus_type;
227 u16 vendor_id;
228 u16 product_id;
229 u16 subsys_vendor_id;
230 u16 subsys_product_id;
231 u8 rfkill_id;
232 u8 power;
233 u8 unknown[4];
234};
235
236/* 7 devices fit into the 128 byte buffer */
237#define HPWMI_MAX_RFKILL2_DEVICES 7
238
239struct bios_rfkill2_state {
240 u8 unknown[7];
241 u8 count;
242 u8 pad[8];
243 struct bios_rfkill2_device_state device[HPWMI_MAX_RFKILL2_DEVICES];
244};
245
246static const struct key_entry hp_wmi_keymap[] = {
247 { KE_KEY, 0x02, { KEY_BRIGHTNESSUP } },
248 { KE_KEY, 0x03, { KEY_BRIGHTNESSDOWN } },
249 { KE_KEY, 0x270, { KEY_MICMUTE } },
250 { KE_KEY, 0x20e6, { KEY_PROG1 } },
251 { KE_KEY, 0x20e8, { KEY_MEDIA } },
252 { KE_KEY, 0x2142, { KEY_MEDIA } },
253 { KE_KEY, 0x213b, { KEY_INFO } },
254 { KE_KEY, 0x2169, { KEY_ROTATE_DISPLAY } },
255 { KE_KEY, 0x216a, { KEY_SETUP } },
256 { KE_IGNORE, 0x21a4, }, /* Win Lock On */
257 { KE_IGNORE, 0x121a4, }, /* Win Lock Off */
258 { KE_KEY, 0x21a5, { KEY_PROG2 } }, /* HP Omen Key */
259 { KE_KEY, 0x21a7, { KEY_FN_ESC } },
260 { KE_KEY, 0x21a8, { KEY_PROG2 } }, /* HP Envy x360 programmable key */
261 { KE_KEY, 0x21a9, { KEY_TOUCHPAD_OFF } },
262 { KE_KEY, 0x121a9, { KEY_TOUCHPAD_ON } },
263 { KE_KEY, 0x231b, { KEY_HELP } },
264 { KE_END, 0 }
265};
266
267/*
268 * Mutex for the active_platform_profile variable,
269 * see omen_powersource_event.
270 */
271static DEFINE_MUTEX(active_platform_profile_lock);
272
273static struct input_dev *hp_wmi_input_dev;
274static struct input_dev *camera_shutter_input_dev;
275static struct platform_device *hp_wmi_platform_dev;
276static struct platform_profile_handler platform_profile_handler;
277static struct notifier_block platform_power_source_nb;
278static enum platform_profile_option active_platform_profile;
279static bool platform_profile_support;
280static bool zero_insize_support;
281
282static struct rfkill *wifi_rfkill;
283static struct rfkill *bluetooth_rfkill;
284static struct rfkill *wwan_rfkill;
285
286struct rfkill2_device {
287 u8 id;
288 int num;
289 struct rfkill *rfkill;
290};
291
292static int rfkill2_count;
293static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES];
294
295/*
296 * Chassis Types values were obtained from SMBIOS reference
297 * specification version 3.00. A complete list of system enclosures
298 * and chassis types is available on Table 17.
299 */
300static const char * const tablet_chassis_types[] = {
301 "30", /* Tablet*/
302 "31", /* Convertible */
303 "32" /* Detachable */
304};
305
306#define DEVICE_MODE_TABLET 0x06
307
308/* map output size to the corresponding WMI method id */
309static inline int encode_outsize_for_pvsz(int outsize)
310{
311 if (outsize > 4096)
312 return -EINVAL;
313 if (outsize > 1024)
314 return 5;
315 if (outsize > 128)
316 return 4;
317 if (outsize > 4)
318 return 3;
319 if (outsize > 0)
320 return 2;
321 return 1;
322}
323
324/*
325 * hp_wmi_perform_query
326 *
327 * query: The commandtype (enum hp_wmi_commandtype)
328 * write: The command (enum hp_wmi_command)
329 * buffer: Buffer used as input and/or output
330 * insize: Size of input buffer
331 * outsize: Size of output buffer
332 *
333 * returns zero on success
334 * an HP WMI query specific error code (which is positive)
335 * -EINVAL if the query was not successful at all
336 * -EINVAL if the output buffer size exceeds buffersize
337 *
338 * Note: The buffersize must at least be the maximum of the input and output
339 * size. E.g. Battery info query is defined to have 1 byte input
340 * and 128 byte output. The caller would do:
341 * buffer = kzalloc(128, GFP_KERNEL);
342 * ret = hp_wmi_perform_query(HPWMI_BATTERY_QUERY, HPWMI_READ, buffer, 1, 128)
343 */
344static int hp_wmi_perform_query(int query, enum hp_wmi_command command,
345 void *buffer, int insize, int outsize)
346{
347 struct acpi_buffer input, output = { ACPI_ALLOCATE_BUFFER, NULL };
348 struct bios_return *bios_return;
349 union acpi_object *obj = NULL;
350 struct bios_args *args = NULL;
351 int mid, actual_insize, actual_outsize;
352 size_t bios_args_size;
353 int ret;
354
355 mid = encode_outsize_for_pvsz(outsize);
356 if (WARN_ON(mid < 0))
357 return mid;
358
359 actual_insize = max(insize, 128);
360 bios_args_size = struct_size(args, data, actual_insize);
361 args = kmalloc(bios_args_size, GFP_KERNEL);
362 if (!args)
363 return -ENOMEM;
364
365 input.length = bios_args_size;
366 input.pointer = args;
367
368 args->signature = 0x55434553;
369 args->command = command;
370 args->commandtype = query;
371 args->datasize = insize;
372 memcpy(args->data, buffer, flex_array_size(args, data, insize));
373
374 ret = wmi_evaluate_method(HPWMI_BIOS_GUID, 0, mid, &input, &output);
375 if (ret)
376 goto out_free;
377
378 obj = output.pointer;
379 if (!obj) {
380 ret = -EINVAL;
381 goto out_free;
382 }
383
384 if (obj->type != ACPI_TYPE_BUFFER) {
385 pr_warn("query 0x%x returned an invalid object 0x%x\n", query, ret);
386 ret = -EINVAL;
387 goto out_free;
388 }
389
390 bios_return = (struct bios_return *)obj->buffer.pointer;
391 ret = bios_return->return_code;
392
393 if (ret) {
394 if (ret != HPWMI_RET_UNKNOWN_COMMAND &&
395 ret != HPWMI_RET_UNKNOWN_CMDTYPE)
396 pr_warn("query 0x%x returned error 0x%x\n", query, ret);
397 goto out_free;
398 }
399
400 /* Ignore output data of zero size */
401 if (!outsize)
402 goto out_free;
403
404 actual_outsize = min(outsize, (int)(obj->buffer.length - sizeof(*bios_return)));
405 memcpy(buffer, obj->buffer.pointer + sizeof(*bios_return), actual_outsize);
406 memset(buffer + actual_outsize, 0, outsize - actual_outsize);
407
408out_free:
409 kfree(obj);
410 kfree(args);
411 return ret;
412}
413
414static int hp_wmi_get_fan_speed(int fan)
415{
416 u8 fsh, fsl;
417 char fan_data[4] = { fan, 0, 0, 0 };
418
419 int ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_GET_QUERY, HPWMI_GM,
420 &fan_data, sizeof(char),
421 sizeof(fan_data));
422
423 if (ret != 0)
424 return -EINVAL;
425
426 fsh = fan_data[2];
427 fsl = fan_data[3];
428
429 return (fsh << 8) | fsl;
430}
431
432static int hp_wmi_read_int(int query)
433{
434 int val = 0, ret;
435
436 ret = hp_wmi_perform_query(query, HPWMI_READ, &val,
437 zero_if_sup(val), sizeof(val));
438
439 if (ret)
440 return ret < 0 ? ret : -EINVAL;
441
442 return val;
443}
444
445static int hp_wmi_get_dock_state(void)
446{
447 int state = hp_wmi_read_int(HPWMI_HARDWARE_QUERY);
448
449 if (state < 0)
450 return state;
451
452 return !!(state & HPWMI_DOCK_MASK);
453}
454
455static int hp_wmi_get_tablet_mode(void)
456{
457 char system_device_mode[4] = { 0 };
458 const char *chassis_type;
459 bool tablet_found;
460 int ret;
461
462 chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE);
463 if (!chassis_type)
464 return -ENODEV;
465
466 tablet_found = match_string(tablet_chassis_types,
467 ARRAY_SIZE(tablet_chassis_types),
468 chassis_type) >= 0;
469 if (!tablet_found)
470 return -ENODEV;
471
472 ret = hp_wmi_perform_query(HPWMI_SYSTEM_DEVICE_MODE, HPWMI_READ,
473 system_device_mode, zero_if_sup(system_device_mode),
474 sizeof(system_device_mode));
475 if (ret < 0)
476 return ret;
477
478 return system_device_mode[0] == DEVICE_MODE_TABLET;
479}
480
481static int omen_thermal_profile_set(int mode)
482{
483 /* The Omen Control Center actively sets the first byte of the buffer to
484 * 255, so let's mimic this behaviour to be as close as possible to
485 * the original software.
486 */
487 char buffer[2] = {-1, mode};
488 int ret;
489
490 ret = hp_wmi_perform_query(HPWMI_SET_PERFORMANCE_MODE, HPWMI_GM,
491 &buffer, sizeof(buffer), 0);
492
493 if (ret)
494 return ret < 0 ? ret : -EINVAL;
495
496 return mode;
497}
498
499static bool is_omen_thermal_profile(void)
500{
501 const char *board_name = dmi_get_system_info(DMI_BOARD_NAME);
502
503 if (!board_name)
504 return false;
505
506 return match_string(omen_thermal_profile_boards,
507 ARRAY_SIZE(omen_thermal_profile_boards),
508 board_name) >= 0;
509}
510
511static int omen_get_thermal_policy_version(void)
512{
513 unsigned char buffer[8] = { 0 };
514 int ret;
515
516 const char *board_name = dmi_get_system_info(DMI_BOARD_NAME);
517
518 if (board_name) {
519 int matches = match_string(omen_thermal_profile_force_v0_boards,
520 ARRAY_SIZE(omen_thermal_profile_force_v0_boards),
521 board_name);
522 if (matches >= 0)
523 return 0;
524 }
525
526 ret = hp_wmi_perform_query(HPWMI_GET_SYSTEM_DESIGN_DATA, HPWMI_GM,
527 &buffer, sizeof(buffer), sizeof(buffer));
528
529 if (ret)
530 return ret < 0 ? ret : -EINVAL;
531
532 return buffer[3];
533}
534
535static int omen_thermal_profile_get(void)
536{
537 u8 data;
538
539 int ret = ec_read(HP_OMEN_EC_THERMAL_PROFILE_OFFSET, &data);
540
541 if (ret)
542 return ret;
543
544 return data;
545}
546
547static int hp_wmi_fan_speed_max_set(int enabled)
548{
549 int ret;
550
551 ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_MAX_SET_QUERY, HPWMI_GM,
552 &enabled, sizeof(enabled), 0);
553
554 if (ret)
555 return ret < 0 ? ret : -EINVAL;
556
557 return enabled;
558}
559
560static int hp_wmi_fan_speed_max_get(void)
561{
562 int val = 0, ret;
563
564 ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_MAX_GET_QUERY, HPWMI_GM,
565 &val, zero_if_sup(val), sizeof(val));
566
567 if (ret)
568 return ret < 0 ? ret : -EINVAL;
569
570 return val;
571}
572
573static int __init hp_wmi_bios_2008_later(void)
574{
575 int state = 0;
576 int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, HPWMI_READ, &state,
577 zero_if_sup(state), sizeof(state));
578 if (!ret)
579 return 1;
580
581 return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO;
582}
583
584static int __init hp_wmi_bios_2009_later(void)
585{
586 u8 state[128];
587 int ret = hp_wmi_perform_query(HPWMI_FEATURE2_QUERY, HPWMI_READ, &state,
588 zero_if_sup(state), sizeof(state));
589 if (!ret)
590 return 1;
591
592 return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO;
593}
594
595static int __init hp_wmi_enable_hotkeys(void)
596{
597 int value = 0x6e;
598 int ret = hp_wmi_perform_query(HPWMI_BIOS_QUERY, HPWMI_WRITE, &value,
599 sizeof(value), 0);
600
601 return ret <= 0 ? ret : -EINVAL;
602}
603
604static int hp_wmi_set_block(void *data, bool blocked)
605{
606 enum hp_wmi_radio r = (long)data;
607 int query = BIT(r + 8) | ((!blocked) << r);
608 int ret;
609
610 ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_WRITE,
611 &query, sizeof(query), 0);
612
613 return ret <= 0 ? ret : -EINVAL;
614}
615
616static const struct rfkill_ops hp_wmi_rfkill_ops = {
617 .set_block = hp_wmi_set_block,
618};
619
620static bool hp_wmi_get_sw_state(enum hp_wmi_radio r)
621{
622 int mask = 0x200 << (r * 8);
623
624 int wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY);
625
626 /* TBD: Pass error */
627 WARN_ONCE(wireless < 0, "error executing HPWMI_WIRELESS_QUERY");
628
629 return !(wireless & mask);
630}
631
632static bool hp_wmi_get_hw_state(enum hp_wmi_radio r)
633{
634 int mask = 0x800 << (r * 8);
635
636 int wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY);
637
638 /* TBD: Pass error */
639 WARN_ONCE(wireless < 0, "error executing HPWMI_WIRELESS_QUERY");
640
641 return !(wireless & mask);
642}
643
644static int hp_wmi_rfkill2_set_block(void *data, bool blocked)
645{
646 int rfkill_id = (int)(long)data;
647 char buffer[4] = { 0x01, 0x00, rfkill_id, !blocked };
648 int ret;
649
650 ret = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_WRITE,
651 buffer, sizeof(buffer), 0);
652
653 return ret <= 0 ? ret : -EINVAL;
654}
655
656static const struct rfkill_ops hp_wmi_rfkill2_ops = {
657 .set_block = hp_wmi_rfkill2_set_block,
658};
659
660static int hp_wmi_rfkill2_refresh(void)
661{
662 struct bios_rfkill2_state state;
663 int err, i;
664
665 err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state,
666 zero_if_sup(state), sizeof(state));
667 if (err)
668 return err;
669
670 for (i = 0; i < rfkill2_count; i++) {
671 int num = rfkill2[i].num;
672 struct bios_rfkill2_device_state *devstate;
673
674 devstate = &state.device[num];
675
676 if (num >= state.count ||
677 devstate->rfkill_id != rfkill2[i].id) {
678 pr_warn("power configuration of the wireless devices unexpectedly changed\n");
679 continue;
680 }
681
682 rfkill_set_states(rfkill2[i].rfkill,
683 IS_SWBLOCKED(devstate->power),
684 IS_HWBLOCKED(devstate->power));
685 }
686
687 return 0;
688}
689
690static ssize_t display_show(struct device *dev, struct device_attribute *attr,
691 char *buf)
692{
693 int value = hp_wmi_read_int(HPWMI_DISPLAY_QUERY);
694
695 if (value < 0)
696 return value;
697 return sysfs_emit(buf, "%d\n", value);
698}
699
700static ssize_t hddtemp_show(struct device *dev, struct device_attribute *attr,
701 char *buf)
702{
703 int value = hp_wmi_read_int(HPWMI_HDDTEMP_QUERY);
704
705 if (value < 0)
706 return value;
707 return sysfs_emit(buf, "%d\n", value);
708}
709
710static ssize_t als_show(struct device *dev, struct device_attribute *attr,
711 char *buf)
712{
713 int value = hp_wmi_read_int(HPWMI_ALS_QUERY);
714
715 if (value < 0)
716 return value;
717 return sysfs_emit(buf, "%d\n", value);
718}
719
720static ssize_t dock_show(struct device *dev, struct device_attribute *attr,
721 char *buf)
722{
723 int value = hp_wmi_get_dock_state();
724
725 if (value < 0)
726 return value;
727 return sysfs_emit(buf, "%d\n", value);
728}
729
730static ssize_t tablet_show(struct device *dev, struct device_attribute *attr,
731 char *buf)
732{
733 int value = hp_wmi_get_tablet_mode();
734
735 if (value < 0)
736 return value;
737 return sysfs_emit(buf, "%d\n", value);
738}
739
740static ssize_t postcode_show(struct device *dev, struct device_attribute *attr,
741 char *buf)
742{
743 /* Get the POST error code of previous boot failure. */
744 int value = hp_wmi_read_int(HPWMI_POSTCODEERROR_QUERY);
745
746 if (value < 0)
747 return value;
748 return sysfs_emit(buf, "0x%x\n", value);
749}
750
751static ssize_t als_store(struct device *dev, struct device_attribute *attr,
752 const char *buf, size_t count)
753{
754 u32 tmp;
755 int ret;
756
757 ret = kstrtou32(buf, 10, &tmp);
758 if (ret)
759 return ret;
760
761 ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, HPWMI_WRITE, &tmp,
762 sizeof(tmp), 0);
763 if (ret)
764 return ret < 0 ? ret : -EINVAL;
765
766 return count;
767}
768
769static ssize_t postcode_store(struct device *dev, struct device_attribute *attr,
770 const char *buf, size_t count)
771{
772 u32 tmp = 1;
773 bool clear;
774 int ret;
775
776 ret = kstrtobool(buf, &clear);
777 if (ret)
778 return ret;
779
780 if (clear == false)
781 return -EINVAL;
782
783 /* Clear the POST error code. It is kept until cleared. */
784 ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, HPWMI_WRITE, &tmp,
785 sizeof(tmp), 0);
786 if (ret)
787 return ret < 0 ? ret : -EINVAL;
788
789 return count;
790}
791
792static int camera_shutter_input_setup(void)
793{
794 int err;
795
796 camera_shutter_input_dev = input_allocate_device();
797 if (!camera_shutter_input_dev)
798 return -ENOMEM;
799
800 camera_shutter_input_dev->name = "HP WMI camera shutter";
801 camera_shutter_input_dev->phys = "wmi/input1";
802 camera_shutter_input_dev->id.bustype = BUS_HOST;
803
804 __set_bit(EV_SW, camera_shutter_input_dev->evbit);
805 __set_bit(SW_CAMERA_LENS_COVER, camera_shutter_input_dev->swbit);
806
807 err = input_register_device(camera_shutter_input_dev);
808 if (err)
809 goto err_free_dev;
810
811 return 0;
812
813 err_free_dev:
814 input_free_device(camera_shutter_input_dev);
815 camera_shutter_input_dev = NULL;
816 return err;
817}
818
819static DEVICE_ATTR_RO(display);
820static DEVICE_ATTR_RO(hddtemp);
821static DEVICE_ATTR_RW(als);
822static DEVICE_ATTR_RO(dock);
823static DEVICE_ATTR_RO(tablet);
824static DEVICE_ATTR_RW(postcode);
825
826static struct attribute *hp_wmi_attrs[] = {
827 &dev_attr_display.attr,
828 &dev_attr_hddtemp.attr,
829 &dev_attr_als.attr,
830 &dev_attr_dock.attr,
831 &dev_attr_tablet.attr,
832 &dev_attr_postcode.attr,
833 NULL,
834};
835ATTRIBUTE_GROUPS(hp_wmi);
836
837static void hp_wmi_notify(union acpi_object *obj, void *context)
838{
839 u32 event_id, event_data;
840 u32 *location;
841 int key_code;
842
843 if (!obj)
844 return;
845 if (obj->type != ACPI_TYPE_BUFFER) {
846 pr_info("Unknown response received %d\n", obj->type);
847 return;
848 }
849
850 /*
851 * Depending on ACPI version the concatenation of id and event data
852 * inside _WED function will result in a 8 or 16 byte buffer.
853 */
854 location = (u32 *)obj->buffer.pointer;
855 if (obj->buffer.length == 8) {
856 event_id = *location;
857 event_data = *(location + 1);
858 } else if (obj->buffer.length == 16) {
859 event_id = *location;
860 event_data = *(location + 2);
861 } else {
862 pr_info("Unknown buffer length %d\n", obj->buffer.length);
863 return;
864 }
865
866 switch (event_id) {
867 case HPWMI_DOCK_EVENT:
868 if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit))
869 input_report_switch(hp_wmi_input_dev, SW_DOCK,
870 hp_wmi_get_dock_state());
871 if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit))
872 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
873 hp_wmi_get_tablet_mode());
874 input_sync(hp_wmi_input_dev);
875 break;
876 case HPWMI_PARK_HDD:
877 break;
878 case HPWMI_SMART_ADAPTER:
879 break;
880 case HPWMI_BEZEL_BUTTON:
881 key_code = hp_wmi_read_int(HPWMI_HOTKEY_QUERY);
882 if (key_code < 0)
883 break;
884
885 if (!sparse_keymap_report_event(hp_wmi_input_dev,
886 key_code, 1, true))
887 pr_info("Unknown key code - 0x%x\n", key_code);
888 break;
889 case HPWMI_OMEN_KEY:
890 if (event_data) /* Only should be true for HP Omen */
891 key_code = event_data;
892 else
893 key_code = hp_wmi_read_int(HPWMI_HOTKEY_QUERY);
894
895 if (!sparse_keymap_report_event(hp_wmi_input_dev,
896 key_code, 1, true))
897 pr_info("Unknown key code - 0x%x\n", key_code);
898 break;
899 case HPWMI_WIRELESS:
900 if (rfkill2_count) {
901 hp_wmi_rfkill2_refresh();
902 break;
903 }
904
905 if (wifi_rfkill)
906 rfkill_set_states(wifi_rfkill,
907 hp_wmi_get_sw_state(HPWMI_WIFI),
908 hp_wmi_get_hw_state(HPWMI_WIFI));
909 if (bluetooth_rfkill)
910 rfkill_set_states(bluetooth_rfkill,
911 hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
912 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
913 if (wwan_rfkill)
914 rfkill_set_states(wwan_rfkill,
915 hp_wmi_get_sw_state(HPWMI_WWAN),
916 hp_wmi_get_hw_state(HPWMI_WWAN));
917 break;
918 case HPWMI_CPU_BATTERY_THROTTLE:
919 pr_info("Unimplemented CPU throttle because of 3 Cell battery event detected\n");
920 break;
921 case HPWMI_LOCK_SWITCH:
922 break;
923 case HPWMI_LID_SWITCH:
924 break;
925 case HPWMI_SCREEN_ROTATION:
926 break;
927 case HPWMI_COOLSENSE_SYSTEM_MOBILE:
928 break;
929 case HPWMI_COOLSENSE_SYSTEM_HOT:
930 break;
931 case HPWMI_PROXIMITY_SENSOR:
932 break;
933 case HPWMI_BACKLIT_KB_BRIGHTNESS:
934 break;
935 case HPWMI_PEAKSHIFT_PERIOD:
936 break;
937 case HPWMI_BATTERY_CHARGE_PERIOD:
938 break;
939 case HPWMI_SANITIZATION_MODE:
940 break;
941 case HPWMI_CAMERA_TOGGLE:
942 if (!camera_shutter_input_dev)
943 if (camera_shutter_input_setup()) {
944 pr_err("Failed to setup camera shutter input device\n");
945 break;
946 }
947 if (event_data == 0xff)
948 input_report_switch(camera_shutter_input_dev, SW_CAMERA_LENS_COVER, 1);
949 else if (event_data == 0xfe)
950 input_report_switch(camera_shutter_input_dev, SW_CAMERA_LENS_COVER, 0);
951 else
952 pr_warn("Unknown camera shutter state - 0x%x\n", event_data);
953 input_sync(camera_shutter_input_dev);
954 break;
955 case HPWMI_SMART_EXPERIENCE_APP:
956 break;
957 default:
958 pr_info("Unknown event_id - %d - 0x%x\n", event_id, event_data);
959 break;
960 }
961}
962
963static int __init hp_wmi_input_setup(void)
964{
965 acpi_status status;
966 int err, val;
967
968 hp_wmi_input_dev = input_allocate_device();
969 if (!hp_wmi_input_dev)
970 return -ENOMEM;
971
972 hp_wmi_input_dev->name = "HP WMI hotkeys";
973 hp_wmi_input_dev->phys = "wmi/input0";
974 hp_wmi_input_dev->id.bustype = BUS_HOST;
975
976 __set_bit(EV_SW, hp_wmi_input_dev->evbit);
977
978 /* Dock */
979 val = hp_wmi_get_dock_state();
980 if (!(val < 0)) {
981 __set_bit(SW_DOCK, hp_wmi_input_dev->swbit);
982 input_report_switch(hp_wmi_input_dev, SW_DOCK, val);
983 }
984
985 /* Tablet mode */
986 val = hp_wmi_get_tablet_mode();
987 if (!(val < 0)) {
988 __set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit);
989 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, val);
990 }
991
992 err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL);
993 if (err)
994 goto err_free_dev;
995
996 /* Set initial hardware state */
997 input_sync(hp_wmi_input_dev);
998
999 if (!hp_wmi_bios_2009_later() && hp_wmi_bios_2008_later())
1000 hp_wmi_enable_hotkeys();
1001
1002 status = wmi_install_notify_handler(HPWMI_EVENT_GUID, hp_wmi_notify, NULL);
1003 if (ACPI_FAILURE(status)) {
1004 err = -EIO;
1005 goto err_free_dev;
1006 }
1007
1008 err = input_register_device(hp_wmi_input_dev);
1009 if (err)
1010 goto err_uninstall_notifier;
1011
1012 return 0;
1013
1014 err_uninstall_notifier:
1015 wmi_remove_notify_handler(HPWMI_EVENT_GUID);
1016 err_free_dev:
1017 input_free_device(hp_wmi_input_dev);
1018 return err;
1019}
1020
1021static void hp_wmi_input_destroy(void)
1022{
1023 wmi_remove_notify_handler(HPWMI_EVENT_GUID);
1024 input_unregister_device(hp_wmi_input_dev);
1025}
1026
1027static int __init hp_wmi_rfkill_setup(struct platform_device *device)
1028{
1029 int err, wireless;
1030
1031 wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY);
1032 if (wireless < 0)
1033 return wireless;
1034
1035 err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_WRITE, &wireless,
1036 sizeof(wireless), 0);
1037 if (err)
1038 return err;
1039
1040 if (wireless & 0x1) {
1041 wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev,
1042 RFKILL_TYPE_WLAN,
1043 &hp_wmi_rfkill_ops,
1044 (void *) HPWMI_WIFI);
1045 if (!wifi_rfkill)
1046 return -ENOMEM;
1047 rfkill_init_sw_state(wifi_rfkill,
1048 hp_wmi_get_sw_state(HPWMI_WIFI));
1049 rfkill_set_hw_state(wifi_rfkill,
1050 hp_wmi_get_hw_state(HPWMI_WIFI));
1051 err = rfkill_register(wifi_rfkill);
1052 if (err)
1053 goto register_wifi_error;
1054 }
1055
1056 if (wireless & 0x2) {
1057 bluetooth_rfkill = rfkill_alloc("hp-bluetooth", &device->dev,
1058 RFKILL_TYPE_BLUETOOTH,
1059 &hp_wmi_rfkill_ops,
1060 (void *) HPWMI_BLUETOOTH);
1061 if (!bluetooth_rfkill) {
1062 err = -ENOMEM;
1063 goto register_bluetooth_error;
1064 }
1065 rfkill_init_sw_state(bluetooth_rfkill,
1066 hp_wmi_get_sw_state(HPWMI_BLUETOOTH));
1067 rfkill_set_hw_state(bluetooth_rfkill,
1068 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
1069 err = rfkill_register(bluetooth_rfkill);
1070 if (err)
1071 goto register_bluetooth_error;
1072 }
1073
1074 if (wireless & 0x4) {
1075 wwan_rfkill = rfkill_alloc("hp-wwan", &device->dev,
1076 RFKILL_TYPE_WWAN,
1077 &hp_wmi_rfkill_ops,
1078 (void *) HPWMI_WWAN);
1079 if (!wwan_rfkill) {
1080 err = -ENOMEM;
1081 goto register_wwan_error;
1082 }
1083 rfkill_init_sw_state(wwan_rfkill,
1084 hp_wmi_get_sw_state(HPWMI_WWAN));
1085 rfkill_set_hw_state(wwan_rfkill,
1086 hp_wmi_get_hw_state(HPWMI_WWAN));
1087 err = rfkill_register(wwan_rfkill);
1088 if (err)
1089 goto register_wwan_error;
1090 }
1091
1092 return 0;
1093
1094register_wwan_error:
1095 rfkill_destroy(wwan_rfkill);
1096 wwan_rfkill = NULL;
1097 if (bluetooth_rfkill)
1098 rfkill_unregister(bluetooth_rfkill);
1099register_bluetooth_error:
1100 rfkill_destroy(bluetooth_rfkill);
1101 bluetooth_rfkill = NULL;
1102 if (wifi_rfkill)
1103 rfkill_unregister(wifi_rfkill);
1104register_wifi_error:
1105 rfkill_destroy(wifi_rfkill);
1106 wifi_rfkill = NULL;
1107 return err;
1108}
1109
1110static int __init hp_wmi_rfkill2_setup(struct platform_device *device)
1111{
1112 struct bios_rfkill2_state state;
1113 int err, i;
1114
1115 err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state,
1116 zero_if_sup(state), sizeof(state));
1117 if (err)
1118 return err < 0 ? err : -EINVAL;
1119
1120 if (state.count > HPWMI_MAX_RFKILL2_DEVICES) {
1121 pr_warn("unable to parse 0x1b query output\n");
1122 return -EINVAL;
1123 }
1124
1125 for (i = 0; i < state.count; i++) {
1126 struct rfkill *rfkill;
1127 enum rfkill_type type;
1128 char *name;
1129
1130 switch (state.device[i].radio_type) {
1131 case HPWMI_WIFI:
1132 type = RFKILL_TYPE_WLAN;
1133 name = "hp-wifi";
1134 break;
1135 case HPWMI_BLUETOOTH:
1136 type = RFKILL_TYPE_BLUETOOTH;
1137 name = "hp-bluetooth";
1138 break;
1139 case HPWMI_WWAN:
1140 type = RFKILL_TYPE_WWAN;
1141 name = "hp-wwan";
1142 break;
1143 case HPWMI_GPS:
1144 type = RFKILL_TYPE_GPS;
1145 name = "hp-gps";
1146 break;
1147 default:
1148 pr_warn("unknown device type 0x%x\n",
1149 state.device[i].radio_type);
1150 continue;
1151 }
1152
1153 if (!state.device[i].vendor_id) {
1154 pr_warn("zero device %d while %d reported\n",
1155 i, state.count);
1156 continue;
1157 }
1158
1159 rfkill = rfkill_alloc(name, &device->dev, type,
1160 &hp_wmi_rfkill2_ops, (void *)(long)i);
1161 if (!rfkill) {
1162 err = -ENOMEM;
1163 goto fail;
1164 }
1165
1166 rfkill2[rfkill2_count].id = state.device[i].rfkill_id;
1167 rfkill2[rfkill2_count].num = i;
1168 rfkill2[rfkill2_count].rfkill = rfkill;
1169
1170 rfkill_init_sw_state(rfkill,
1171 IS_SWBLOCKED(state.device[i].power));
1172 rfkill_set_hw_state(rfkill,
1173 IS_HWBLOCKED(state.device[i].power));
1174
1175 if (!(state.device[i].power & HPWMI_POWER_BIOS))
1176 pr_info("device %s blocked by BIOS\n", name);
1177
1178 err = rfkill_register(rfkill);
1179 if (err) {
1180 rfkill_destroy(rfkill);
1181 goto fail;
1182 }
1183
1184 rfkill2_count++;
1185 }
1186
1187 return 0;
1188fail:
1189 for (; rfkill2_count > 0; rfkill2_count--) {
1190 rfkill_unregister(rfkill2[rfkill2_count - 1].rfkill);
1191 rfkill_destroy(rfkill2[rfkill2_count - 1].rfkill);
1192 }
1193 return err;
1194}
1195
1196static int platform_profile_omen_get_ec(enum platform_profile_option *profile)
1197{
1198 int tp;
1199
1200 tp = omen_thermal_profile_get();
1201 if (tp < 0)
1202 return tp;
1203
1204 switch (tp) {
1205 case HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE:
1206 case HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE:
1207 *profile = PLATFORM_PROFILE_PERFORMANCE;
1208 break;
1209 case HP_OMEN_V0_THERMAL_PROFILE_DEFAULT:
1210 case HP_OMEN_V1_THERMAL_PROFILE_DEFAULT:
1211 *profile = PLATFORM_PROFILE_BALANCED;
1212 break;
1213 case HP_OMEN_V0_THERMAL_PROFILE_COOL:
1214 case HP_OMEN_V1_THERMAL_PROFILE_COOL:
1215 *profile = PLATFORM_PROFILE_COOL;
1216 break;
1217 default:
1218 return -EINVAL;
1219 }
1220
1221 return 0;
1222}
1223
1224static int platform_profile_omen_get(struct platform_profile_handler *pprof,
1225 enum platform_profile_option *profile)
1226{
1227 /*
1228 * We directly return the stored platform profile, as the embedded
1229 * controller will not accept switching to the performance option when
1230 * the conditions are not met (e.g. the laptop is not plugged in).
1231 *
1232 * If we directly return what the EC reports, the platform profile will
1233 * immediately "switch back" to normal mode, which is against the
1234 * expected behaviour from a userspace point of view, as described in
1235 * the Platform Profile Section page of the kernel documentation.
1236 *
1237 * See also omen_powersource_event.
1238 */
1239 guard(mutex)(&active_platform_profile_lock);
1240 *profile = active_platform_profile;
1241
1242 return 0;
1243}
1244
1245static bool has_omen_thermal_profile_ec_timer(void)
1246{
1247 const char *board_name = dmi_get_system_info(DMI_BOARD_NAME);
1248
1249 if (!board_name)
1250 return false;
1251
1252 return match_string(omen_timed_thermal_profile_boards,
1253 ARRAY_SIZE(omen_timed_thermal_profile_boards),
1254 board_name) >= 0;
1255}
1256
1257inline int omen_thermal_profile_ec_flags_set(enum hp_thermal_profile_omen_flags flags)
1258{
1259 return ec_write(HP_OMEN_EC_THERMAL_PROFILE_FLAGS_OFFSET, flags);
1260}
1261
1262inline int omen_thermal_profile_ec_timer_set(u8 value)
1263{
1264 return ec_write(HP_OMEN_EC_THERMAL_PROFILE_TIMER_OFFSET, value);
1265}
1266
1267static int platform_profile_omen_set_ec(enum platform_profile_option profile)
1268{
1269 int err, tp, tp_version;
1270 enum hp_thermal_profile_omen_flags flags = 0;
1271
1272 tp_version = omen_get_thermal_policy_version();
1273
1274 if (tp_version < 0 || tp_version > 1)
1275 return -EOPNOTSUPP;
1276
1277 switch (profile) {
1278 case PLATFORM_PROFILE_PERFORMANCE:
1279 if (tp_version == 0)
1280 tp = HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE;
1281 else
1282 tp = HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE;
1283 break;
1284 case PLATFORM_PROFILE_BALANCED:
1285 if (tp_version == 0)
1286 tp = HP_OMEN_V0_THERMAL_PROFILE_DEFAULT;
1287 else
1288 tp = HP_OMEN_V1_THERMAL_PROFILE_DEFAULT;
1289 break;
1290 case PLATFORM_PROFILE_COOL:
1291 if (tp_version == 0)
1292 tp = HP_OMEN_V0_THERMAL_PROFILE_COOL;
1293 else
1294 tp = HP_OMEN_V1_THERMAL_PROFILE_COOL;
1295 break;
1296 default:
1297 return -EOPNOTSUPP;
1298 }
1299
1300 err = omen_thermal_profile_set(tp);
1301 if (err < 0)
1302 return err;
1303
1304 if (has_omen_thermal_profile_ec_timer()) {
1305 err = omen_thermal_profile_ec_timer_set(0);
1306 if (err < 0)
1307 return err;
1308
1309 if (profile == PLATFORM_PROFILE_PERFORMANCE)
1310 flags = HP_OMEN_EC_FLAGS_NOTIMER |
1311 HP_OMEN_EC_FLAGS_TURBO;
1312
1313 err = omen_thermal_profile_ec_flags_set(flags);
1314 if (err < 0)
1315 return err;
1316 }
1317
1318 return 0;
1319}
1320
1321static int platform_profile_omen_set(struct platform_profile_handler *pprof,
1322 enum platform_profile_option profile)
1323{
1324 int err;
1325
1326 guard(mutex)(&active_platform_profile_lock);
1327
1328 err = platform_profile_omen_set_ec(profile);
1329 if (err < 0)
1330 return err;
1331
1332 active_platform_profile = profile;
1333
1334 return 0;
1335}
1336
1337static int thermal_profile_get(void)
1338{
1339 return hp_wmi_read_int(HPWMI_THERMAL_PROFILE_QUERY);
1340}
1341
1342static int thermal_profile_set(int thermal_profile)
1343{
1344 return hp_wmi_perform_query(HPWMI_THERMAL_PROFILE_QUERY, HPWMI_WRITE, &thermal_profile,
1345 sizeof(thermal_profile), 0);
1346}
1347
1348static int hp_wmi_platform_profile_get(struct platform_profile_handler *pprof,
1349 enum platform_profile_option *profile)
1350{
1351 int tp;
1352
1353 tp = thermal_profile_get();
1354 if (tp < 0)
1355 return tp;
1356
1357 switch (tp) {
1358 case HP_THERMAL_PROFILE_PERFORMANCE:
1359 *profile = PLATFORM_PROFILE_PERFORMANCE;
1360 break;
1361 case HP_THERMAL_PROFILE_DEFAULT:
1362 *profile = PLATFORM_PROFILE_BALANCED;
1363 break;
1364 case HP_THERMAL_PROFILE_COOL:
1365 *profile = PLATFORM_PROFILE_COOL;
1366 break;
1367 case HP_THERMAL_PROFILE_QUIET:
1368 *profile = PLATFORM_PROFILE_QUIET;
1369 break;
1370 default:
1371 return -EINVAL;
1372 }
1373
1374 return 0;
1375}
1376
1377static int hp_wmi_platform_profile_set(struct platform_profile_handler *pprof,
1378 enum platform_profile_option profile)
1379{
1380 int err, tp;
1381
1382 switch (profile) {
1383 case PLATFORM_PROFILE_PERFORMANCE:
1384 tp = HP_THERMAL_PROFILE_PERFORMANCE;
1385 break;
1386 case PLATFORM_PROFILE_BALANCED:
1387 tp = HP_THERMAL_PROFILE_DEFAULT;
1388 break;
1389 case PLATFORM_PROFILE_COOL:
1390 tp = HP_THERMAL_PROFILE_COOL;
1391 break;
1392 case PLATFORM_PROFILE_QUIET:
1393 tp = HP_THERMAL_PROFILE_QUIET;
1394 break;
1395 default:
1396 return -EOPNOTSUPP;
1397 }
1398
1399 err = thermal_profile_set(tp);
1400 if (err)
1401 return err;
1402
1403 return 0;
1404}
1405
1406static bool is_victus_thermal_profile(void)
1407{
1408 const char *board_name = dmi_get_system_info(DMI_BOARD_NAME);
1409
1410 if (!board_name)
1411 return false;
1412
1413 return match_string(victus_thermal_profile_boards,
1414 ARRAY_SIZE(victus_thermal_profile_boards),
1415 board_name) >= 0;
1416}
1417
1418static int platform_profile_victus_get_ec(enum platform_profile_option *profile)
1419{
1420 int tp;
1421
1422 tp = omen_thermal_profile_get();
1423 if (tp < 0)
1424 return tp;
1425
1426 switch (tp) {
1427 case HP_VICTUS_THERMAL_PROFILE_PERFORMANCE:
1428 *profile = PLATFORM_PROFILE_PERFORMANCE;
1429 break;
1430 case HP_VICTUS_THERMAL_PROFILE_DEFAULT:
1431 *profile = PLATFORM_PROFILE_BALANCED;
1432 break;
1433 case HP_VICTUS_THERMAL_PROFILE_QUIET:
1434 *profile = PLATFORM_PROFILE_QUIET;
1435 break;
1436 default:
1437 return -EOPNOTSUPP;
1438 }
1439
1440 return 0;
1441}
1442
1443static int platform_profile_victus_get(struct platform_profile_handler *pprof,
1444 enum platform_profile_option *profile)
1445{
1446 /* Same behaviour as platform_profile_omen_get */
1447 return platform_profile_omen_get(pprof, profile);
1448}
1449
1450static int platform_profile_victus_set_ec(enum platform_profile_option profile)
1451{
1452 int err, tp;
1453
1454 switch (profile) {
1455 case PLATFORM_PROFILE_PERFORMANCE:
1456 tp = HP_VICTUS_THERMAL_PROFILE_PERFORMANCE;
1457 break;
1458 case PLATFORM_PROFILE_BALANCED:
1459 tp = HP_VICTUS_THERMAL_PROFILE_DEFAULT;
1460 break;
1461 case PLATFORM_PROFILE_QUIET:
1462 tp = HP_VICTUS_THERMAL_PROFILE_QUIET;
1463 break;
1464 default:
1465 return -EOPNOTSUPP;
1466 }
1467
1468 err = omen_thermal_profile_set(tp);
1469 if (err < 0)
1470 return err;
1471
1472 return 0;
1473}
1474
1475static int platform_profile_victus_set(struct platform_profile_handler *pprof,
1476 enum platform_profile_option profile)
1477{
1478 int err;
1479
1480 guard(mutex)(&active_platform_profile_lock);
1481
1482 err = platform_profile_victus_set_ec(profile);
1483 if (err < 0)
1484 return err;
1485
1486 active_platform_profile = profile;
1487
1488 return 0;
1489}
1490
1491static int omen_powersource_event(struct notifier_block *nb,
1492 unsigned long value,
1493 void *data)
1494{
1495 struct acpi_bus_event *event_entry = data;
1496 enum platform_profile_option actual_profile;
1497 int err;
1498
1499 if (strcmp(event_entry->device_class, ACPI_AC_CLASS) != 0)
1500 return NOTIFY_DONE;
1501
1502 pr_debug("Received power source device event\n");
1503
1504 guard(mutex)(&active_platform_profile_lock);
1505
1506 /*
1507 * This handler can only be called on Omen and Victus models, so
1508 * there's no need to call is_victus_thermal_profile() here.
1509 */
1510 if (is_omen_thermal_profile())
1511 err = platform_profile_omen_get_ec(&actual_profile);
1512 else
1513 err = platform_profile_victus_get_ec(&actual_profile);
1514
1515 if (err < 0) {
1516 /*
1517 * Although we failed to get the current platform profile, we
1518 * still want the other event consumers to process it.
1519 */
1520 pr_warn("Failed to read current platform profile (%d)\n", err);
1521 return NOTIFY_DONE;
1522 }
1523
1524 /*
1525 * If we're back on AC and that the user-chosen power profile is
1526 * different from what the EC reports, we restore the user-chosen
1527 * one.
1528 */
1529 if (power_supply_is_system_supplied() <= 0 ||
1530 active_platform_profile == actual_profile) {
1531 pr_debug("Platform profile update skipped, conditions unmet\n");
1532 return NOTIFY_DONE;
1533 }
1534
1535 if (is_omen_thermal_profile())
1536 err = platform_profile_omen_set_ec(active_platform_profile);
1537 else
1538 err = platform_profile_victus_set_ec(active_platform_profile);
1539
1540 if (err < 0) {
1541 pr_warn("Failed to restore platform profile (%d)\n", err);
1542 return NOTIFY_DONE;
1543 }
1544
1545 return NOTIFY_OK;
1546}
1547
1548static int omen_register_powersource_event_handler(void)
1549{
1550 int err;
1551
1552 platform_power_source_nb.notifier_call = omen_powersource_event;
1553 err = register_acpi_notifier(&platform_power_source_nb);
1554
1555 if (err < 0) {
1556 pr_warn("Failed to install ACPI power source notify handler\n");
1557 return err;
1558 }
1559
1560 return 0;
1561}
1562
1563static inline void omen_unregister_powersource_event_handler(void)
1564{
1565 unregister_acpi_notifier(&platform_power_source_nb);
1566}
1567
1568static int thermal_profile_setup(void)
1569{
1570 int err, tp;
1571
1572 if (is_omen_thermal_profile()) {
1573 err = platform_profile_omen_get_ec(&active_platform_profile);
1574 if (err < 0)
1575 return err;
1576
1577 /*
1578 * call thermal profile write command to ensure that the
1579 * firmware correctly sets the OEM variables
1580 */
1581 err = platform_profile_omen_set_ec(active_platform_profile);
1582 if (err < 0)
1583 return err;
1584
1585 platform_profile_handler.profile_get = platform_profile_omen_get;
1586 platform_profile_handler.profile_set = platform_profile_omen_set;
1587
1588 set_bit(PLATFORM_PROFILE_COOL, platform_profile_handler.choices);
1589 } else if (is_victus_thermal_profile()) {
1590 err = platform_profile_victus_get_ec(&active_platform_profile);
1591 if (err < 0)
1592 return err;
1593
1594 /*
1595 * call thermal profile write command to ensure that the
1596 * firmware correctly sets the OEM variables
1597 */
1598 err = platform_profile_victus_set_ec(active_platform_profile);
1599 if (err < 0)
1600 return err;
1601
1602 platform_profile_handler.profile_get = platform_profile_victus_get;
1603 platform_profile_handler.profile_set = platform_profile_victus_set;
1604
1605 set_bit(PLATFORM_PROFILE_QUIET, platform_profile_handler.choices);
1606 } else {
1607 tp = thermal_profile_get();
1608
1609 if (tp < 0)
1610 return tp;
1611
1612 /*
1613 * call thermal profile write command to ensure that the
1614 * firmware correctly sets the OEM variables for the DPTF
1615 */
1616 err = thermal_profile_set(tp);
1617 if (err)
1618 return err;
1619
1620 platform_profile_handler.profile_get = hp_wmi_platform_profile_get;
1621 platform_profile_handler.profile_set = hp_wmi_platform_profile_set;
1622
1623 set_bit(PLATFORM_PROFILE_QUIET, platform_profile_handler.choices);
1624 set_bit(PLATFORM_PROFILE_COOL, platform_profile_handler.choices);
1625 }
1626
1627 set_bit(PLATFORM_PROFILE_BALANCED, platform_profile_handler.choices);
1628 set_bit(PLATFORM_PROFILE_PERFORMANCE, platform_profile_handler.choices);
1629
1630 err = platform_profile_register(&platform_profile_handler);
1631 if (err)
1632 return err;
1633
1634 platform_profile_support = true;
1635
1636 return 0;
1637}
1638
1639static int hp_wmi_hwmon_init(void);
1640
1641static int __init hp_wmi_bios_setup(struct platform_device *device)
1642{
1643 int err;
1644 /* clear detected rfkill devices */
1645 wifi_rfkill = NULL;
1646 bluetooth_rfkill = NULL;
1647 wwan_rfkill = NULL;
1648 rfkill2_count = 0;
1649
1650 /*
1651 * In pre-2009 BIOS, command 1Bh return 0x4 to indicate that
1652 * BIOS no longer controls the power for the wireless
1653 * devices. All features supported by this command will no
1654 * longer be supported.
1655 */
1656 if (!hp_wmi_bios_2009_later()) {
1657 if (hp_wmi_rfkill_setup(device))
1658 hp_wmi_rfkill2_setup(device);
1659 }
1660
1661 err = hp_wmi_hwmon_init();
1662
1663 if (err < 0)
1664 return err;
1665
1666 thermal_profile_setup();
1667
1668 return 0;
1669}
1670
1671static void __exit hp_wmi_bios_remove(struct platform_device *device)
1672{
1673 int i;
1674
1675 for (i = 0; i < rfkill2_count; i++) {
1676 rfkill_unregister(rfkill2[i].rfkill);
1677 rfkill_destroy(rfkill2[i].rfkill);
1678 }
1679
1680 if (wifi_rfkill) {
1681 rfkill_unregister(wifi_rfkill);
1682 rfkill_destroy(wifi_rfkill);
1683 }
1684 if (bluetooth_rfkill) {
1685 rfkill_unregister(bluetooth_rfkill);
1686 rfkill_destroy(bluetooth_rfkill);
1687 }
1688 if (wwan_rfkill) {
1689 rfkill_unregister(wwan_rfkill);
1690 rfkill_destroy(wwan_rfkill);
1691 }
1692
1693 if (platform_profile_support)
1694 platform_profile_remove();
1695}
1696
1697static int hp_wmi_resume_handler(struct device *device)
1698{
1699 /*
1700 * Hardware state may have changed while suspended, so trigger
1701 * input events for the current state. As this is a switch,
1702 * the input layer will only actually pass it on if the state
1703 * changed.
1704 */
1705 if (hp_wmi_input_dev) {
1706 if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit))
1707 input_report_switch(hp_wmi_input_dev, SW_DOCK,
1708 hp_wmi_get_dock_state());
1709 if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit))
1710 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
1711 hp_wmi_get_tablet_mode());
1712 input_sync(hp_wmi_input_dev);
1713 }
1714
1715 if (rfkill2_count)
1716 hp_wmi_rfkill2_refresh();
1717
1718 if (wifi_rfkill)
1719 rfkill_set_states(wifi_rfkill,
1720 hp_wmi_get_sw_state(HPWMI_WIFI),
1721 hp_wmi_get_hw_state(HPWMI_WIFI));
1722 if (bluetooth_rfkill)
1723 rfkill_set_states(bluetooth_rfkill,
1724 hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
1725 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
1726 if (wwan_rfkill)
1727 rfkill_set_states(wwan_rfkill,
1728 hp_wmi_get_sw_state(HPWMI_WWAN),
1729 hp_wmi_get_hw_state(HPWMI_WWAN));
1730
1731 return 0;
1732}
1733
1734static const struct dev_pm_ops hp_wmi_pm_ops = {
1735 .resume = hp_wmi_resume_handler,
1736 .restore = hp_wmi_resume_handler,
1737};
1738
1739/*
1740 * hp_wmi_bios_remove() lives in .exit.text. For drivers registered via
1741 * module_platform_driver_probe() this is ok because they cannot get unbound at
1742 * runtime. So mark the driver struct with __refdata to prevent modpost
1743 * triggering a section mismatch warning.
1744 */
1745static struct platform_driver hp_wmi_driver __refdata = {
1746 .driver = {
1747 .name = "hp-wmi",
1748 .pm = &hp_wmi_pm_ops,
1749 .dev_groups = hp_wmi_groups,
1750 },
1751 .remove = __exit_p(hp_wmi_bios_remove),
1752};
1753
1754static umode_t hp_wmi_hwmon_is_visible(const void *data,
1755 enum hwmon_sensor_types type,
1756 u32 attr, int channel)
1757{
1758 switch (type) {
1759 case hwmon_pwm:
1760 return 0644;
1761 case hwmon_fan:
1762 if (hp_wmi_get_fan_speed(channel) >= 0)
1763 return 0444;
1764 break;
1765 default:
1766 return 0;
1767 }
1768
1769 return 0;
1770}
1771
1772static int hp_wmi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
1773 u32 attr, int channel, long *val)
1774{
1775 int ret;
1776
1777 switch (type) {
1778 case hwmon_fan:
1779 ret = hp_wmi_get_fan_speed(channel);
1780
1781 if (ret < 0)
1782 return ret;
1783 *val = ret;
1784 return 0;
1785 case hwmon_pwm:
1786 switch (hp_wmi_fan_speed_max_get()) {
1787 case 0:
1788 /* 0 is automatic fan, which is 2 for hwmon */
1789 *val = 2;
1790 return 0;
1791 case 1:
1792 /* 1 is max fan, which is 0
1793 * (no fan speed control) for hwmon
1794 */
1795 *val = 0;
1796 return 0;
1797 default:
1798 /* shouldn't happen */
1799 return -ENODATA;
1800 }
1801 default:
1802 return -EINVAL;
1803 }
1804}
1805
1806static int hp_wmi_hwmon_write(struct device *dev, enum hwmon_sensor_types type,
1807 u32 attr, int channel, long val)
1808{
1809 switch (type) {
1810 case hwmon_pwm:
1811 switch (val) {
1812 case 0:
1813 /* 0 is no fan speed control (max), which is 1 for us */
1814 return hp_wmi_fan_speed_max_set(1);
1815 case 2:
1816 /* 2 is automatic speed control, which is 0 for us */
1817 return hp_wmi_fan_speed_max_set(0);
1818 default:
1819 /* we don't support manual fan speed control */
1820 return -EINVAL;
1821 }
1822 default:
1823 return -EOPNOTSUPP;
1824 }
1825}
1826
1827static const struct hwmon_channel_info * const info[] = {
1828 HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT, HWMON_F_INPUT),
1829 HWMON_CHANNEL_INFO(pwm, HWMON_PWM_ENABLE),
1830 NULL
1831};
1832
1833static const struct hwmon_ops ops = {
1834 .is_visible = hp_wmi_hwmon_is_visible,
1835 .read = hp_wmi_hwmon_read,
1836 .write = hp_wmi_hwmon_write,
1837};
1838
1839static const struct hwmon_chip_info chip_info = {
1840 .ops = &ops,
1841 .info = info,
1842};
1843
1844static int hp_wmi_hwmon_init(void)
1845{
1846 struct device *dev = &hp_wmi_platform_dev->dev;
1847 struct device *hwmon;
1848
1849 hwmon = devm_hwmon_device_register_with_info(dev, "hp", &hp_wmi_driver,
1850 &chip_info, NULL);
1851
1852 if (IS_ERR(hwmon)) {
1853 dev_err(dev, "Could not register hp hwmon device\n");
1854 return PTR_ERR(hwmon);
1855 }
1856
1857 return 0;
1858}
1859
1860static int __init hp_wmi_init(void)
1861{
1862 int event_capable = wmi_has_guid(HPWMI_EVENT_GUID);
1863 int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID);
1864 int err, tmp = 0;
1865
1866 if (!bios_capable && !event_capable)
1867 return -ENODEV;
1868
1869 if (hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, HPWMI_READ, &tmp,
1870 sizeof(tmp), sizeof(tmp)) == HPWMI_RET_INVALID_PARAMETERS)
1871 zero_insize_support = true;
1872
1873 if (event_capable) {
1874 err = hp_wmi_input_setup();
1875 if (err)
1876 return err;
1877 }
1878
1879 if (bios_capable) {
1880 hp_wmi_platform_dev =
1881 platform_device_register_simple("hp-wmi", PLATFORM_DEVID_NONE, NULL, 0);
1882 if (IS_ERR(hp_wmi_platform_dev)) {
1883 err = PTR_ERR(hp_wmi_platform_dev);
1884 goto err_destroy_input;
1885 }
1886
1887 err = platform_driver_probe(&hp_wmi_driver, hp_wmi_bios_setup);
1888 if (err)
1889 goto err_unregister_device;
1890 }
1891
1892 if (is_omen_thermal_profile() || is_victus_thermal_profile()) {
1893 err = omen_register_powersource_event_handler();
1894 if (err)
1895 goto err_unregister_device;
1896 }
1897
1898 return 0;
1899
1900err_unregister_device:
1901 platform_device_unregister(hp_wmi_platform_dev);
1902err_destroy_input:
1903 if (event_capable)
1904 hp_wmi_input_destroy();
1905
1906 return err;
1907}
1908module_init(hp_wmi_init);
1909
1910static void __exit hp_wmi_exit(void)
1911{
1912 if (is_omen_thermal_profile() || is_victus_thermal_profile())
1913 omen_unregister_powersource_event_handler();
1914
1915 if (wmi_has_guid(HPWMI_EVENT_GUID))
1916 hp_wmi_input_destroy();
1917
1918 if (camera_shutter_input_dev)
1919 input_unregister_device(camera_shutter_input_dev);
1920
1921 if (hp_wmi_platform_dev) {
1922 platform_device_unregister(hp_wmi_platform_dev);
1923 platform_driver_unregister(&hp_wmi_driver);
1924 }
1925}
1926module_exit(hp_wmi_exit);