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