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