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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Asus PC WMI hotkey driver
4 *
5 * Copyright(C) 2010 Intel Corporation.
6 * Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com>
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/acpi.h>
17#include <linux/backlight.h>
18#include <linux/debugfs.h>
19#include <linux/dmi.h>
20#include <linux/fb.h>
21#include <linux/hwmon.h>
22#include <linux/hwmon-sysfs.h>
23#include <linux/init.h>
24#include <linux/input.h>
25#include <linux/input/sparse-keymap.h>
26#include <linux/kernel.h>
27#include <linux/leds.h>
28#include <linux/module.h>
29#include <linux/pci.h>
30#include <linux/pci_hotplug.h>
31#include <linux/platform_data/x86/asus-wmi.h>
32#include <linux/platform_device.h>
33#include <linux/platform_profile.h>
34#include <linux/power_supply.h>
35#include <linux/rfkill.h>
36#include <linux/seq_file.h>
37#include <linux/slab.h>
38#include <linux/types.h>
39#include <linux/units.h>
40
41#include <acpi/battery.h>
42#include <acpi/video.h>
43
44#include "asus-wmi.h"
45
46MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>");
47MODULE_AUTHOR("Yong Wang <yong.y.wang@intel.com>");
48MODULE_DESCRIPTION("Asus Generic WMI Driver");
49MODULE_LICENSE("GPL");
50
51static bool fnlock_default = true;
52module_param(fnlock_default, bool, 0444);
53
54#define to_asus_wmi_driver(pdrv) \
55 (container_of((pdrv), struct asus_wmi_driver, platform_driver))
56
57#define ASUS_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66"
58
59#define NOTIFY_BRNUP_MIN 0x11
60#define NOTIFY_BRNUP_MAX 0x1f
61#define NOTIFY_BRNDOWN_MIN 0x20
62#define NOTIFY_BRNDOWN_MAX 0x2e
63#define NOTIFY_FNLOCK_TOGGLE 0x4e
64#define NOTIFY_KBD_DOCK_CHANGE 0x75
65#define NOTIFY_KBD_BRTUP 0xc4
66#define NOTIFY_KBD_BRTDWN 0xc5
67#define NOTIFY_KBD_BRTTOGGLE 0xc7
68#define NOTIFY_KBD_FBM 0x99
69#define NOTIFY_KBD_TTP 0xae
70#define NOTIFY_LID_FLIP 0xfa
71#define NOTIFY_LID_FLIP_ROG 0xbd
72
73#define ASUS_WMI_FNLOCK_BIOS_DISABLED BIT(0)
74
75#define ASUS_GPU_FAN_DESC "gpu_fan"
76#define ASUS_FAN_DESC "cpu_fan"
77#define ASUS_FAN_MFUN 0x13
78#define ASUS_FAN_SFUN_READ 0x06
79#define ASUS_FAN_SFUN_WRITE 0x07
80
81/* Based on standard hwmon pwmX_enable values */
82#define ASUS_FAN_CTRL_FULLSPEED 0
83#define ASUS_FAN_CTRL_MANUAL 1
84#define ASUS_FAN_CTRL_AUTO 2
85
86#define ASUS_FAN_BOOST_MODE_NORMAL 0
87#define ASUS_FAN_BOOST_MODE_OVERBOOST 1
88#define ASUS_FAN_BOOST_MODE_OVERBOOST_MASK 0x01
89#define ASUS_FAN_BOOST_MODE_SILENT 2
90#define ASUS_FAN_BOOST_MODE_SILENT_MASK 0x02
91#define ASUS_FAN_BOOST_MODES_MASK 0x03
92
93#define ASUS_THROTTLE_THERMAL_POLICY_DEFAULT 0
94#define ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST 1
95#define ASUS_THROTTLE_THERMAL_POLICY_SILENT 2
96
97#define USB_INTEL_XUSB2PR 0xD0
98#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31
99
100#define ASUS_ACPI_UID_ASUSWMI "ASUSWMI"
101#define ASUS_ACPI_UID_ATK "ATK"
102
103#define WMI_EVENT_QUEUE_SIZE 0x10
104#define WMI_EVENT_QUEUE_END 0x1
105#define WMI_EVENT_MASK 0xFFFF
106/* The WMI hotkey event value is always the same. */
107#define WMI_EVENT_VALUE_ATK 0xFF
108
109#define WMI_EVENT_MASK 0xFFFF
110
111#define FAN_CURVE_POINTS 8
112#define FAN_CURVE_BUF_LEN 32
113#define FAN_CURVE_DEV_CPU 0x00
114#define FAN_CURVE_DEV_GPU 0x01
115/* Mask to determine if setting temperature or percentage */
116#define FAN_CURVE_PWM_MASK 0x04
117
118static const char * const ashs_ids[] = { "ATK4001", "ATK4002", NULL };
119
120static int throttle_thermal_policy_write(struct asus_wmi *);
121
122static bool ashs_present(void)
123{
124 int i = 0;
125 while (ashs_ids[i]) {
126 if (acpi_dev_found(ashs_ids[i++]))
127 return true;
128 }
129 return false;
130}
131
132struct bios_args {
133 u32 arg0;
134 u32 arg1;
135 u32 arg2; /* At least TUF Gaming series uses 3 dword input buffer. */
136 u32 arg3;
137 u32 arg4; /* Some ROG laptops require a full 5 input args */
138 u32 arg5;
139} __packed;
140
141/*
142 * Struct that's used for all methods called via AGFN. Naming is
143 * identically to the AML code.
144 */
145struct agfn_args {
146 u16 mfun; /* probably "Multi-function" to be called */
147 u16 sfun; /* probably "Sub-function" to be called */
148 u16 len; /* size of the hole struct, including subfunction fields */
149 u8 stas; /* not used by now */
150 u8 err; /* zero on success */
151} __packed;
152
153/* struct used for calling fan read and write methods */
154struct agfn_fan_args {
155 struct agfn_args agfn; /* common fields */
156 u8 fan; /* fan number: 0: set auto mode 1: 1st fan */
157 u32 speed; /* read: RPM/100 - write: 0-255 */
158} __packed;
159
160/*
161 * <platform>/ - debugfs root directory
162 * dev_id - current dev_id
163 * ctrl_param - current ctrl_param
164 * method_id - current method_id
165 * devs - call DEVS(dev_id, ctrl_param) and print result
166 * dsts - call DSTS(dev_id) and print result
167 * call - call method_id(dev_id, ctrl_param) and print result
168 */
169struct asus_wmi_debug {
170 struct dentry *root;
171 u32 method_id;
172 u32 dev_id;
173 u32 ctrl_param;
174};
175
176struct asus_rfkill {
177 struct asus_wmi *asus;
178 struct rfkill *rfkill;
179 u32 dev_id;
180};
181
182enum fan_type {
183 FAN_TYPE_NONE = 0,
184 FAN_TYPE_AGFN, /* deprecated on newer platforms */
185 FAN_TYPE_SPEC83, /* starting in Spec 8.3, use CPU_FAN_CTRL */
186};
187
188struct fan_curve_data {
189 bool enabled;
190 u32 device_id;
191 u8 temps[FAN_CURVE_POINTS];
192 u8 percents[FAN_CURVE_POINTS];
193};
194
195struct asus_wmi {
196 int dsts_id;
197 int spec;
198 int sfun;
199 bool wmi_event_queue;
200
201 struct input_dev *inputdev;
202 struct backlight_device *backlight_device;
203 struct platform_device *platform_device;
204
205 struct led_classdev wlan_led;
206 int wlan_led_wk;
207 struct led_classdev tpd_led;
208 int tpd_led_wk;
209 struct led_classdev kbd_led;
210 int kbd_led_wk;
211 struct led_classdev lightbar_led;
212 int lightbar_led_wk;
213 struct led_classdev micmute_led;
214 struct workqueue_struct *led_workqueue;
215 struct work_struct tpd_led_work;
216 struct work_struct wlan_led_work;
217 struct work_struct lightbar_led_work;
218
219 struct asus_rfkill wlan;
220 struct asus_rfkill bluetooth;
221 struct asus_rfkill wimax;
222 struct asus_rfkill wwan3g;
223 struct asus_rfkill gps;
224 struct asus_rfkill uwb;
225
226 int tablet_switch_event_code;
227 u32 tablet_switch_dev_id;
228 bool tablet_switch_inverted;
229
230 enum fan_type fan_type;
231 enum fan_type gpu_fan_type;
232 int fan_pwm_mode;
233 int gpu_fan_pwm_mode;
234 int agfn_pwm;
235
236 bool fan_boost_mode_available;
237 u8 fan_boost_mode_mask;
238 u8 fan_boost_mode;
239
240 bool egpu_enable_available;
241 bool dgpu_disable_available;
242 bool gpu_mux_mode_available;
243
244 bool kbd_rgb_mode_available;
245 bool kbd_rgb_state_available;
246
247 bool throttle_thermal_policy_available;
248 u8 throttle_thermal_policy_mode;
249
250 bool cpu_fan_curve_available;
251 bool gpu_fan_curve_available;
252 struct fan_curve_data custom_fan_curves[2];
253
254 struct platform_profile_handler platform_profile_handler;
255 bool platform_profile_support;
256
257 // The RSOC controls the maximum charging percentage.
258 bool battery_rsoc_available;
259
260 bool panel_overdrive_available;
261
262 struct hotplug_slot hotplug_slot;
263 struct mutex hotplug_lock;
264 struct mutex wmi_lock;
265 struct workqueue_struct *hotplug_workqueue;
266 struct work_struct hotplug_work;
267
268 bool fnlock_locked;
269
270 struct asus_wmi_debug debug;
271
272 struct asus_wmi_driver *driver;
273};
274
275/* WMI ************************************************************************/
276
277static int asus_wmi_evaluate_method3(u32 method_id,
278 u32 arg0, u32 arg1, u32 arg2, u32 *retval)
279{
280 struct bios_args args = {
281 .arg0 = arg0,
282 .arg1 = arg1,
283 .arg2 = arg2,
284 };
285 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
286 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
287 acpi_status status;
288 union acpi_object *obj;
289 u32 tmp = 0;
290
291 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
292 &input, &output);
293
294 if (ACPI_FAILURE(status))
295 return -EIO;
296
297 obj = (union acpi_object *)output.pointer;
298 if (obj && obj->type == ACPI_TYPE_INTEGER)
299 tmp = (u32) obj->integer.value;
300
301 if (retval)
302 *retval = tmp;
303
304 kfree(obj);
305
306 if (tmp == ASUS_WMI_UNSUPPORTED_METHOD)
307 return -ENODEV;
308
309 return 0;
310}
311
312int asus_wmi_evaluate_method(u32 method_id, u32 arg0, u32 arg1, u32 *retval)
313{
314 return asus_wmi_evaluate_method3(method_id, arg0, arg1, 0, retval);
315}
316EXPORT_SYMBOL_GPL(asus_wmi_evaluate_method);
317
318static int asus_wmi_evaluate_method5(u32 method_id,
319 u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4, u32 *retval)
320{
321 struct bios_args args = {
322 .arg0 = arg0,
323 .arg1 = arg1,
324 .arg2 = arg2,
325 .arg3 = arg3,
326 .arg4 = arg4,
327 };
328 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
329 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
330 acpi_status status;
331 union acpi_object *obj;
332 u32 tmp = 0;
333
334 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
335 &input, &output);
336
337 if (ACPI_FAILURE(status))
338 return -EIO;
339
340 obj = (union acpi_object *)output.pointer;
341 if (obj && obj->type == ACPI_TYPE_INTEGER)
342 tmp = (u32) obj->integer.value;
343
344 if (retval)
345 *retval = tmp;
346
347 kfree(obj);
348
349 if (tmp == ASUS_WMI_UNSUPPORTED_METHOD)
350 return -ENODEV;
351
352 return 0;
353}
354
355/*
356 * Returns as an error if the method output is not a buffer. Typically this
357 * means that the method called is unsupported.
358 */
359static int asus_wmi_evaluate_method_buf(u32 method_id,
360 u32 arg0, u32 arg1, u8 *ret_buffer, size_t size)
361{
362 struct bios_args args = {
363 .arg0 = arg0,
364 .arg1 = arg1,
365 .arg2 = 0,
366 };
367 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
368 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
369 acpi_status status;
370 union acpi_object *obj;
371 int err = 0;
372
373 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
374 &input, &output);
375
376 if (ACPI_FAILURE(status))
377 return -EIO;
378
379 obj = (union acpi_object *)output.pointer;
380
381 switch (obj->type) {
382 case ACPI_TYPE_BUFFER:
383 if (obj->buffer.length > size) {
384 err = -ENOSPC;
385 break;
386 }
387 if (obj->buffer.length == 0) {
388 err = -ENODATA;
389 break;
390 }
391
392 memcpy(ret_buffer, obj->buffer.pointer, obj->buffer.length);
393 break;
394 case ACPI_TYPE_INTEGER:
395 err = (u32)obj->integer.value;
396
397 if (err == ASUS_WMI_UNSUPPORTED_METHOD)
398 err = -ENODEV;
399 /*
400 * At least one method returns a 0 with no buffer if no arg
401 * is provided, such as ASUS_WMI_DEVID_CPU_FAN_CURVE
402 */
403 if (err == 0)
404 err = -ENODATA;
405 break;
406 default:
407 err = -ENODATA;
408 break;
409 }
410
411 kfree(obj);
412
413 if (err)
414 return err;
415
416 return 0;
417}
418
419static int asus_wmi_evaluate_method_agfn(const struct acpi_buffer args)
420{
421 struct acpi_buffer input;
422 u64 phys_addr;
423 u32 retval;
424 u32 status;
425
426 /*
427 * Copy to dma capable address otherwise memory corruption occurs as
428 * bios has to be able to access it.
429 */
430 input.pointer = kmemdup(args.pointer, args.length, GFP_DMA | GFP_KERNEL);
431 input.length = args.length;
432 if (!input.pointer)
433 return -ENOMEM;
434 phys_addr = virt_to_phys(input.pointer);
435
436 status = asus_wmi_evaluate_method(ASUS_WMI_METHODID_AGFN,
437 phys_addr, 0, &retval);
438 if (!status)
439 memcpy(args.pointer, input.pointer, args.length);
440
441 kfree(input.pointer);
442 if (status)
443 return -ENXIO;
444
445 return retval;
446}
447
448static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval)
449{
450 return asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval);
451}
452
453static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
454 u32 *retval)
455{
456 return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS, dev_id,
457 ctrl_param, retval);
458}
459
460/* Helper for special devices with magic return codes */
461static int asus_wmi_get_devstate_bits(struct asus_wmi *asus,
462 u32 dev_id, u32 mask)
463{
464 u32 retval = 0;
465 int err;
466
467 err = asus_wmi_get_devstate(asus, dev_id, &retval);
468 if (err < 0)
469 return err;
470
471 if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT))
472 return -ENODEV;
473
474 if (mask == ASUS_WMI_DSTS_STATUS_BIT) {
475 if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT)
476 return -ENODEV;
477 }
478
479 return retval & mask;
480}
481
482static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id)
483{
484 return asus_wmi_get_devstate_bits(asus, dev_id,
485 ASUS_WMI_DSTS_STATUS_BIT);
486}
487
488static bool asus_wmi_dev_is_present(struct asus_wmi *asus, u32 dev_id)
489{
490 u32 retval;
491 int status = asus_wmi_get_devstate(asus, dev_id, &retval);
492
493 return status == 0 && (retval & ASUS_WMI_DSTS_PRESENCE_BIT);
494}
495
496/* Input **********************************************************************/
497static void asus_wmi_tablet_sw_report(struct asus_wmi *asus, bool value)
498{
499 input_report_switch(asus->inputdev, SW_TABLET_MODE,
500 asus->tablet_switch_inverted ? !value : value);
501 input_sync(asus->inputdev);
502}
503
504static void asus_wmi_tablet_sw_init(struct asus_wmi *asus, u32 dev_id, int event_code)
505{
506 struct device *dev = &asus->platform_device->dev;
507 int result;
508
509 result = asus_wmi_get_devstate_simple(asus, dev_id);
510 if (result >= 0) {
511 input_set_capability(asus->inputdev, EV_SW, SW_TABLET_MODE);
512 asus_wmi_tablet_sw_report(asus, result);
513 asus->tablet_switch_dev_id = dev_id;
514 asus->tablet_switch_event_code = event_code;
515 } else if (result == -ENODEV) {
516 dev_err(dev, "This device has tablet-mode-switch quirk but got ENODEV checking it. This is a bug.");
517 } else {
518 dev_err(dev, "Error checking for tablet-mode-switch: %d\n", result);
519 }
520}
521
522static int asus_wmi_input_init(struct asus_wmi *asus)
523{
524 struct device *dev = &asus->platform_device->dev;
525 int err;
526
527 asus->inputdev = input_allocate_device();
528 if (!asus->inputdev)
529 return -ENOMEM;
530
531 asus->inputdev->name = asus->driver->input_name;
532 asus->inputdev->phys = asus->driver->input_phys;
533 asus->inputdev->id.bustype = BUS_HOST;
534 asus->inputdev->dev.parent = dev;
535 set_bit(EV_REP, asus->inputdev->evbit);
536
537 err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL);
538 if (err)
539 goto err_free_dev;
540
541 switch (asus->driver->quirks->tablet_switch_mode) {
542 case asus_wmi_no_tablet_switch:
543 break;
544 case asus_wmi_kbd_dock_devid:
545 asus->tablet_switch_inverted = true;
546 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_KBD_DOCK, NOTIFY_KBD_DOCK_CHANGE);
547 break;
548 case asus_wmi_lid_flip_devid:
549 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_LID_FLIP, NOTIFY_LID_FLIP);
550 break;
551 case asus_wmi_lid_flip_rog_devid:
552 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_LID_FLIP_ROG, NOTIFY_LID_FLIP_ROG);
553 break;
554 }
555
556 err = input_register_device(asus->inputdev);
557 if (err)
558 goto err_free_dev;
559
560 return 0;
561
562err_free_dev:
563 input_free_device(asus->inputdev);
564 return err;
565}
566
567static void asus_wmi_input_exit(struct asus_wmi *asus)
568{
569 if (asus->inputdev)
570 input_unregister_device(asus->inputdev);
571
572 asus->inputdev = NULL;
573}
574
575/* Tablet mode ****************************************************************/
576
577static void asus_wmi_tablet_mode_get_state(struct asus_wmi *asus)
578{
579 int result;
580
581 if (!asus->tablet_switch_dev_id)
582 return;
583
584 result = asus_wmi_get_devstate_simple(asus, asus->tablet_switch_dev_id);
585 if (result >= 0)
586 asus_wmi_tablet_sw_report(asus, result);
587}
588
589/* dGPU ********************************************************************/
590static ssize_t dgpu_disable_show(struct device *dev,
591 struct device_attribute *attr, char *buf)
592{
593 struct asus_wmi *asus = dev_get_drvdata(dev);
594 int result;
595
596 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_DGPU);
597 if (result < 0)
598 return result;
599
600 return sysfs_emit(buf, "%d\n", result);
601}
602
603/*
604 * A user may be required to store the value twice, typcial store first, then
605 * rescan PCI bus to activate power, then store a second time to save correctly.
606 * The reason for this is that an extra code path in the ACPI is enabled when
607 * the device and bus are powered.
608 */
609static ssize_t dgpu_disable_store(struct device *dev,
610 struct device_attribute *attr,
611 const char *buf, size_t count)
612{
613 int result, err;
614 u32 disable;
615
616 struct asus_wmi *asus = dev_get_drvdata(dev);
617
618 result = kstrtou32(buf, 10, &disable);
619 if (result)
620 return result;
621
622 if (disable > 1)
623 return -EINVAL;
624
625 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_DGPU, disable, &result);
626 if (err) {
627 pr_warn("Failed to set dgpu disable: %d\n", err);
628 return err;
629 }
630
631 if (result > 1) {
632 pr_warn("Failed to set dgpu disable (result): 0x%x\n", result);
633 return -EIO;
634 }
635
636 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "dgpu_disable");
637
638 return count;
639}
640static DEVICE_ATTR_RW(dgpu_disable);
641
642/* eGPU ********************************************************************/
643static ssize_t egpu_enable_show(struct device *dev,
644 struct device_attribute *attr, char *buf)
645{
646 struct asus_wmi *asus = dev_get_drvdata(dev);
647 int result;
648
649 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU);
650 if (result < 0)
651 return result;
652
653 return sysfs_emit(buf, "%d\n", result);
654}
655
656/* The ACPI call to enable the eGPU also disables the internal dGPU */
657static ssize_t egpu_enable_store(struct device *dev,
658 struct device_attribute *attr,
659 const char *buf, size_t count)
660{
661 int result, err;
662 u32 enable;
663
664 struct asus_wmi *asus = dev_get_drvdata(dev);
665
666 err = kstrtou32(buf, 10, &enable);
667 if (err)
668 return err;
669
670 if (enable > 1)
671 return -EINVAL;
672
673 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_EGPU, enable, &result);
674 if (err) {
675 pr_warn("Failed to set egpu disable: %d\n", err);
676 return err;
677 }
678
679 if (result > 1) {
680 pr_warn("Failed to set egpu disable (retval): 0x%x\n", result);
681 return -EIO;
682 }
683
684 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "egpu_enable");
685
686 return count;
687}
688static DEVICE_ATTR_RW(egpu_enable);
689
690/* gpu mux switch *************************************************************/
691static ssize_t gpu_mux_mode_show(struct device *dev,
692 struct device_attribute *attr, char *buf)
693{
694 struct asus_wmi *asus = dev_get_drvdata(dev);
695 int result;
696
697 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPU_MUX);
698 if (result < 0)
699 return result;
700
701 return sysfs_emit(buf, "%d\n", result);
702}
703
704static ssize_t gpu_mux_mode_store(struct device *dev,
705 struct device_attribute *attr,
706 const char *buf, size_t count)
707{
708 struct asus_wmi *asus = dev_get_drvdata(dev);
709 int result, err;
710 u32 optimus;
711
712 err = kstrtou32(buf, 10, &optimus);
713 if (err)
714 return err;
715
716 if (optimus > 1)
717 return -EINVAL;
718
719 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_MUX, optimus, &result);
720 if (err) {
721 dev_err(dev, "Failed to set GPU MUX mode: %d\n", err);
722 return err;
723 }
724 /* !1 is considered a fail by ASUS */
725 if (result != 1) {
726 dev_warn(dev, "Failed to set GPU MUX mode (result): 0x%x\n", result);
727 return -EIO;
728 }
729
730 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "gpu_mux_mode");
731
732 return count;
733}
734static DEVICE_ATTR_RW(gpu_mux_mode);
735
736/* TUF Laptop Keyboard RGB Modes **********************************************/
737static ssize_t kbd_rgb_mode_store(struct device *dev,
738 struct device_attribute *attr,
739 const char *buf, size_t count)
740{
741 u32 cmd, mode, r, g, b, speed;
742 int err;
743
744 if (sscanf(buf, "%d %d %d %d %d %d", &cmd, &mode, &r, &g, &b, &speed) != 6)
745 return -EINVAL;
746
747 cmd = !!cmd;
748
749 /* These are the known usable modes across all TUF/ROG */
750 if (mode >= 12 || mode == 9)
751 mode = 10;
752
753 switch (speed) {
754 case 0:
755 speed = 0xe1;
756 break;
757 case 1:
758 speed = 0xeb;
759 break;
760 case 2:
761 speed = 0xf5;
762 break;
763 default:
764 speed = 0xeb;
765 }
766
767 err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS, ASUS_WMI_DEVID_TUF_RGB_MODE,
768 cmd | (mode << 8) | (r << 16) | (g << 24), b | (speed << 8), NULL);
769 if (err)
770 return err;
771
772 return count;
773}
774static DEVICE_ATTR_WO(kbd_rgb_mode);
775
776static ssize_t kbd_rgb_mode_index_show(struct device *device,
777 struct device_attribute *attr,
778 char *buf)
779{
780 return sysfs_emit(buf, "%s\n", "cmd mode red green blue speed");
781}
782static DEVICE_ATTR_RO(kbd_rgb_mode_index);
783
784static struct attribute *kbd_rgb_mode_attrs[] = {
785 &dev_attr_kbd_rgb_mode.attr,
786 &dev_attr_kbd_rgb_mode_index.attr,
787 NULL,
788};
789
790static const struct attribute_group kbd_rgb_mode_group = {
791 .attrs = kbd_rgb_mode_attrs,
792};
793
794/* TUF Laptop Keyboard RGB State **********************************************/
795static ssize_t kbd_rgb_state_store(struct device *dev,
796 struct device_attribute *attr,
797 const char *buf, size_t count)
798{
799 u32 flags, cmd, boot, awake, sleep, keyboard;
800 int err;
801
802 if (sscanf(buf, "%d %d %d %d %d", &cmd, &boot, &awake, &sleep, &keyboard) != 5)
803 return -EINVAL;
804
805 if (cmd)
806 cmd = BIT(2);
807
808 flags = 0;
809 if (boot)
810 flags |= BIT(1);
811 if (awake)
812 flags |= BIT(3);
813 if (sleep)
814 flags |= BIT(5);
815 if (keyboard)
816 flags |= BIT(7);
817
818 /* 0xbd is the required default arg0 for the method. Nothing happens otherwise */
819 err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS,
820 ASUS_WMI_DEVID_TUF_RGB_STATE, 0xbd | cmd << 8 | (flags << 16), 0, NULL);
821 if (err)
822 return err;
823
824 return count;
825}
826static DEVICE_ATTR_WO(kbd_rgb_state);
827
828static ssize_t kbd_rgb_state_index_show(struct device *device,
829 struct device_attribute *attr,
830 char *buf)
831{
832 return sysfs_emit(buf, "%s\n", "cmd boot awake sleep keyboard");
833}
834static DEVICE_ATTR_RO(kbd_rgb_state_index);
835
836static struct attribute *kbd_rgb_state_attrs[] = {
837 &dev_attr_kbd_rgb_state.attr,
838 &dev_attr_kbd_rgb_state_index.attr,
839 NULL,
840};
841
842static const struct attribute_group kbd_rgb_state_group = {
843 .attrs = kbd_rgb_state_attrs,
844};
845
846static const struct attribute_group *kbd_rgb_mode_groups[] = {
847 NULL,
848 NULL,
849 NULL,
850};
851
852/* Battery ********************************************************************/
853
854/* The battery maximum charging percentage */
855static int charge_end_threshold;
856
857static ssize_t charge_control_end_threshold_store(struct device *dev,
858 struct device_attribute *attr,
859 const char *buf, size_t count)
860{
861 int value, ret, rv;
862
863 ret = kstrtouint(buf, 10, &value);
864 if (ret)
865 return ret;
866
867 if (value < 0 || value > 100)
868 return -EINVAL;
869
870 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_RSOC, value, &rv);
871 if (ret)
872 return ret;
873
874 if (rv != 1)
875 return -EIO;
876
877 /* There isn't any method in the DSDT to read the threshold, so we
878 * save the threshold.
879 */
880 charge_end_threshold = value;
881 return count;
882}
883
884static ssize_t charge_control_end_threshold_show(struct device *device,
885 struct device_attribute *attr,
886 char *buf)
887{
888 return sysfs_emit(buf, "%d\n", charge_end_threshold);
889}
890
891static DEVICE_ATTR_RW(charge_control_end_threshold);
892
893static int asus_wmi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
894{
895 /* The WMI method does not provide a way to specific a battery, so we
896 * just assume it is the first battery.
897 * Note: On some newer ASUS laptops (Zenbook UM431DA), the primary/first
898 * battery is named BATT.
899 */
900 if (strcmp(battery->desc->name, "BAT0") != 0 &&
901 strcmp(battery->desc->name, "BAT1") != 0 &&
902 strcmp(battery->desc->name, "BATC") != 0 &&
903 strcmp(battery->desc->name, "BATT") != 0)
904 return -ENODEV;
905
906 if (device_create_file(&battery->dev,
907 &dev_attr_charge_control_end_threshold))
908 return -ENODEV;
909
910 /* The charge threshold is only reset when the system is power cycled,
911 * and we can't get the current threshold so let set it to 100% when
912 * a battery is added.
913 */
914 asus_wmi_set_devstate(ASUS_WMI_DEVID_RSOC, 100, NULL);
915 charge_end_threshold = 100;
916
917 return 0;
918}
919
920static int asus_wmi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
921{
922 device_remove_file(&battery->dev,
923 &dev_attr_charge_control_end_threshold);
924 return 0;
925}
926
927static struct acpi_battery_hook battery_hook = {
928 .add_battery = asus_wmi_battery_add,
929 .remove_battery = asus_wmi_battery_remove,
930 .name = "ASUS Battery Extension",
931};
932
933static void asus_wmi_battery_init(struct asus_wmi *asus)
934{
935 asus->battery_rsoc_available = false;
936 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_RSOC)) {
937 asus->battery_rsoc_available = true;
938 battery_hook_register(&battery_hook);
939 }
940}
941
942static void asus_wmi_battery_exit(struct asus_wmi *asus)
943{
944 if (asus->battery_rsoc_available)
945 battery_hook_unregister(&battery_hook);
946}
947
948/* LEDs ***********************************************************************/
949
950/*
951 * These functions actually update the LED's, and are called from a
952 * workqueue. By doing this as separate work rather than when the LED
953 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
954 * potentially bad time, such as a timer interrupt.
955 */
956static void tpd_led_update(struct work_struct *work)
957{
958 int ctrl_param;
959 struct asus_wmi *asus;
960
961 asus = container_of(work, struct asus_wmi, tpd_led_work);
962
963 ctrl_param = asus->tpd_led_wk;
964 asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
965}
966
967static void tpd_led_set(struct led_classdev *led_cdev,
968 enum led_brightness value)
969{
970 struct asus_wmi *asus;
971
972 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
973
974 asus->tpd_led_wk = !!value;
975 queue_work(asus->led_workqueue, &asus->tpd_led_work);
976}
977
978static int read_tpd_led_state(struct asus_wmi *asus)
979{
980 return asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_TOUCHPAD_LED);
981}
982
983static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
984{
985 struct asus_wmi *asus;
986
987 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
988
989 return read_tpd_led_state(asus);
990}
991
992static void kbd_led_update(struct asus_wmi *asus)
993{
994 int ctrl_param = 0;
995
996 ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F);
997 asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL);
998}
999
1000static int kbd_led_read(struct asus_wmi *asus, int *level, int *env)
1001{
1002 int retval;
1003
1004 /*
1005 * bits 0-2: level
1006 * bit 7: light on/off
1007 * bit 8-10: environment (0: dark, 1: normal, 2: light)
1008 * bit 17: status unknown
1009 */
1010 retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT,
1011 0xFFFF);
1012
1013 /* Unknown status is considered as off */
1014 if (retval == 0x8000)
1015 retval = 0;
1016
1017 if (retval < 0)
1018 return retval;
1019
1020 if (level)
1021 *level = retval & 0x7F;
1022 if (env)
1023 *env = (retval >> 8) & 0x7F;
1024 return 0;
1025}
1026
1027static void do_kbd_led_set(struct led_classdev *led_cdev, int value)
1028{
1029 struct asus_wmi *asus;
1030 int max_level;
1031
1032 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
1033 max_level = asus->kbd_led.max_brightness;
1034
1035 asus->kbd_led_wk = clamp_val(value, 0, max_level);
1036 kbd_led_update(asus);
1037}
1038
1039static void kbd_led_set(struct led_classdev *led_cdev,
1040 enum led_brightness value)
1041{
1042 /* Prevent disabling keyboard backlight on module unregister */
1043 if (led_cdev->flags & LED_UNREGISTERING)
1044 return;
1045
1046 do_kbd_led_set(led_cdev, value);
1047}
1048
1049static void kbd_led_set_by_kbd(struct asus_wmi *asus, enum led_brightness value)
1050{
1051 struct led_classdev *led_cdev = &asus->kbd_led;
1052
1053 do_kbd_led_set(led_cdev, value);
1054 led_classdev_notify_brightness_hw_changed(led_cdev, asus->kbd_led_wk);
1055}
1056
1057static enum led_brightness kbd_led_get(struct led_classdev *led_cdev)
1058{
1059 struct asus_wmi *asus;
1060 int retval, value;
1061
1062 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
1063
1064 retval = kbd_led_read(asus, &value, NULL);
1065 if (retval < 0)
1066 return retval;
1067
1068 return value;
1069}
1070
1071static int wlan_led_unknown_state(struct asus_wmi *asus)
1072{
1073 u32 result;
1074
1075 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
1076
1077 return result & ASUS_WMI_DSTS_UNKNOWN_BIT;
1078}
1079
1080static void wlan_led_update(struct work_struct *work)
1081{
1082 int ctrl_param;
1083 struct asus_wmi *asus;
1084
1085 asus = container_of(work, struct asus_wmi, wlan_led_work);
1086
1087 ctrl_param = asus->wlan_led_wk;
1088 asus_wmi_set_devstate(ASUS_WMI_DEVID_WIRELESS_LED, ctrl_param, NULL);
1089}
1090
1091static void wlan_led_set(struct led_classdev *led_cdev,
1092 enum led_brightness value)
1093{
1094 struct asus_wmi *asus;
1095
1096 asus = container_of(led_cdev, struct asus_wmi, wlan_led);
1097
1098 asus->wlan_led_wk = !!value;
1099 queue_work(asus->led_workqueue, &asus->wlan_led_work);
1100}
1101
1102static enum led_brightness wlan_led_get(struct led_classdev *led_cdev)
1103{
1104 struct asus_wmi *asus;
1105 u32 result;
1106
1107 asus = container_of(led_cdev, struct asus_wmi, wlan_led);
1108 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
1109
1110 return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
1111}
1112
1113static void lightbar_led_update(struct work_struct *work)
1114{
1115 struct asus_wmi *asus;
1116 int ctrl_param;
1117
1118 asus = container_of(work, struct asus_wmi, lightbar_led_work);
1119
1120 ctrl_param = asus->lightbar_led_wk;
1121 asus_wmi_set_devstate(ASUS_WMI_DEVID_LIGHTBAR, ctrl_param, NULL);
1122}
1123
1124static void lightbar_led_set(struct led_classdev *led_cdev,
1125 enum led_brightness value)
1126{
1127 struct asus_wmi *asus;
1128
1129 asus = container_of(led_cdev, struct asus_wmi, lightbar_led);
1130
1131 asus->lightbar_led_wk = !!value;
1132 queue_work(asus->led_workqueue, &asus->lightbar_led_work);
1133}
1134
1135static enum led_brightness lightbar_led_get(struct led_classdev *led_cdev)
1136{
1137 struct asus_wmi *asus;
1138 u32 result;
1139
1140 asus = container_of(led_cdev, struct asus_wmi, lightbar_led);
1141 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_LIGHTBAR, &result);
1142
1143 return result & ASUS_WMI_DSTS_LIGHTBAR_MASK;
1144}
1145
1146static int micmute_led_set(struct led_classdev *led_cdev,
1147 enum led_brightness brightness)
1148{
1149 int state = brightness != LED_OFF;
1150 int err;
1151
1152 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MICMUTE_LED, state, NULL);
1153 return err < 0 ? err : 0;
1154}
1155
1156static void asus_wmi_led_exit(struct asus_wmi *asus)
1157{
1158 led_classdev_unregister(&asus->kbd_led);
1159 led_classdev_unregister(&asus->tpd_led);
1160 led_classdev_unregister(&asus->wlan_led);
1161 led_classdev_unregister(&asus->lightbar_led);
1162 led_classdev_unregister(&asus->micmute_led);
1163
1164 if (asus->led_workqueue)
1165 destroy_workqueue(asus->led_workqueue);
1166}
1167
1168static int asus_wmi_led_init(struct asus_wmi *asus)
1169{
1170 int rv = 0, num_rgb_groups = 0, led_val;
1171
1172 if (asus->kbd_rgb_mode_available)
1173 kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_mode_group;
1174 if (asus->kbd_rgb_state_available)
1175 kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_state_group;
1176
1177 asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
1178 if (!asus->led_workqueue)
1179 return -ENOMEM;
1180
1181 if (read_tpd_led_state(asus) >= 0) {
1182 INIT_WORK(&asus->tpd_led_work, tpd_led_update);
1183
1184 asus->tpd_led.name = "asus::touchpad";
1185 asus->tpd_led.brightness_set = tpd_led_set;
1186 asus->tpd_led.brightness_get = tpd_led_get;
1187 asus->tpd_led.max_brightness = 1;
1188
1189 rv = led_classdev_register(&asus->platform_device->dev,
1190 &asus->tpd_led);
1191 if (rv)
1192 goto error;
1193 }
1194
1195 if (!kbd_led_read(asus, &led_val, NULL)) {
1196 asus->kbd_led_wk = led_val;
1197 asus->kbd_led.name = "asus::kbd_backlight";
1198 asus->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
1199 asus->kbd_led.brightness_set = kbd_led_set;
1200 asus->kbd_led.brightness_get = kbd_led_get;
1201 asus->kbd_led.max_brightness = 3;
1202
1203 if (num_rgb_groups != 0)
1204 asus->kbd_led.groups = kbd_rgb_mode_groups;
1205
1206 rv = led_classdev_register(&asus->platform_device->dev,
1207 &asus->kbd_led);
1208 if (rv)
1209 goto error;
1210 }
1211
1212 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_WIRELESS_LED)
1213 && (asus->driver->quirks->wapf > 0)) {
1214 INIT_WORK(&asus->wlan_led_work, wlan_led_update);
1215
1216 asus->wlan_led.name = "asus::wlan";
1217 asus->wlan_led.brightness_set = wlan_led_set;
1218 if (!wlan_led_unknown_state(asus))
1219 asus->wlan_led.brightness_get = wlan_led_get;
1220 asus->wlan_led.flags = LED_CORE_SUSPENDRESUME;
1221 asus->wlan_led.max_brightness = 1;
1222 asus->wlan_led.default_trigger = "asus-wlan";
1223
1224 rv = led_classdev_register(&asus->platform_device->dev,
1225 &asus->wlan_led);
1226 if (rv)
1227 goto error;
1228 }
1229
1230 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_LIGHTBAR)) {
1231 INIT_WORK(&asus->lightbar_led_work, lightbar_led_update);
1232
1233 asus->lightbar_led.name = "asus::lightbar";
1234 asus->lightbar_led.brightness_set = lightbar_led_set;
1235 asus->lightbar_led.brightness_get = lightbar_led_get;
1236 asus->lightbar_led.max_brightness = 1;
1237
1238 rv = led_classdev_register(&asus->platform_device->dev,
1239 &asus->lightbar_led);
1240 }
1241
1242 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MICMUTE_LED)) {
1243 asus->micmute_led.name = "platform::micmute";
1244 asus->micmute_led.max_brightness = 1;
1245 asus->micmute_led.brightness = ledtrig_audio_get(LED_AUDIO_MICMUTE);
1246 asus->micmute_led.brightness_set_blocking = micmute_led_set;
1247 asus->micmute_led.default_trigger = "audio-micmute";
1248
1249 rv = led_classdev_register(&asus->platform_device->dev,
1250 &asus->micmute_led);
1251 if (rv)
1252 goto error;
1253 }
1254
1255error:
1256 if (rv)
1257 asus_wmi_led_exit(asus);
1258
1259 return rv;
1260}
1261
1262/* RF *************************************************************************/
1263
1264/*
1265 * PCI hotplug (for wlan rfkill)
1266 */
1267static bool asus_wlan_rfkill_blocked(struct asus_wmi *asus)
1268{
1269 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
1270
1271 if (result < 0)
1272 return false;
1273 return !result;
1274}
1275
1276static void asus_rfkill_hotplug(struct asus_wmi *asus)
1277{
1278 struct pci_dev *dev;
1279 struct pci_bus *bus;
1280 bool blocked;
1281 bool absent;
1282 u32 l;
1283
1284 mutex_lock(&asus->wmi_lock);
1285 blocked = asus_wlan_rfkill_blocked(asus);
1286 mutex_unlock(&asus->wmi_lock);
1287
1288 mutex_lock(&asus->hotplug_lock);
1289 pci_lock_rescan_remove();
1290
1291 if (asus->wlan.rfkill)
1292 rfkill_set_sw_state(asus->wlan.rfkill, blocked);
1293
1294 if (asus->hotplug_slot.ops) {
1295 bus = pci_find_bus(0, 1);
1296 if (!bus) {
1297 pr_warn("Unable to find PCI bus 1?\n");
1298 goto out_unlock;
1299 }
1300
1301 if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
1302 pr_err("Unable to read PCI config space?\n");
1303 goto out_unlock;
1304 }
1305 absent = (l == 0xffffffff);
1306
1307 if (blocked != absent) {
1308 pr_warn("BIOS says wireless lan is %s, but the pci device is %s\n",
1309 blocked ? "blocked" : "unblocked",
1310 absent ? "absent" : "present");
1311 pr_warn("skipped wireless hotplug as probably inappropriate for this model\n");
1312 goto out_unlock;
1313 }
1314
1315 if (!blocked) {
1316 dev = pci_get_slot(bus, 0);
1317 if (dev) {
1318 /* Device already present */
1319 pci_dev_put(dev);
1320 goto out_unlock;
1321 }
1322 dev = pci_scan_single_device(bus, 0);
1323 if (dev) {
1324 pci_bus_assign_resources(bus);
1325 pci_bus_add_device(dev);
1326 }
1327 } else {
1328 dev = pci_get_slot(bus, 0);
1329 if (dev) {
1330 pci_stop_and_remove_bus_device(dev);
1331 pci_dev_put(dev);
1332 }
1333 }
1334 }
1335
1336out_unlock:
1337 pci_unlock_rescan_remove();
1338 mutex_unlock(&asus->hotplug_lock);
1339}
1340
1341static void asus_rfkill_notify(acpi_handle handle, u32 event, void *data)
1342{
1343 struct asus_wmi *asus = data;
1344
1345 if (event != ACPI_NOTIFY_BUS_CHECK)
1346 return;
1347
1348 /*
1349 * We can't call directly asus_rfkill_hotplug because most
1350 * of the time WMBC is still being executed and not reetrant.
1351 * There is currently no way to tell ACPICA that we want this
1352 * method to be serialized, we schedule a asus_rfkill_hotplug
1353 * call later, in a safer context.
1354 */
1355 queue_work(asus->hotplug_workqueue, &asus->hotplug_work);
1356}
1357
1358static int asus_register_rfkill_notifier(struct asus_wmi *asus, char *node)
1359{
1360 acpi_status status;
1361 acpi_handle handle;
1362
1363 status = acpi_get_handle(NULL, node, &handle);
1364 if (ACPI_FAILURE(status))
1365 return -ENODEV;
1366
1367 status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
1368 asus_rfkill_notify, asus);
1369 if (ACPI_FAILURE(status))
1370 pr_warn("Failed to register notify on %s\n", node);
1371
1372 return 0;
1373}
1374
1375static void asus_unregister_rfkill_notifier(struct asus_wmi *asus, char *node)
1376{
1377 acpi_status status = AE_OK;
1378 acpi_handle handle;
1379
1380 status = acpi_get_handle(NULL, node, &handle);
1381 if (ACPI_FAILURE(status))
1382 return;
1383
1384 status = acpi_remove_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
1385 asus_rfkill_notify);
1386 if (ACPI_FAILURE(status))
1387 pr_err("Error removing rfkill notify handler %s\n", node);
1388}
1389
1390static int asus_get_adapter_status(struct hotplug_slot *hotplug_slot,
1391 u8 *value)
1392{
1393 struct asus_wmi *asus = container_of(hotplug_slot,
1394 struct asus_wmi, hotplug_slot);
1395 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
1396
1397 if (result < 0)
1398 return result;
1399
1400 *value = !!result;
1401 return 0;
1402}
1403
1404static const struct hotplug_slot_ops asus_hotplug_slot_ops = {
1405 .get_adapter_status = asus_get_adapter_status,
1406 .get_power_status = asus_get_adapter_status,
1407};
1408
1409static void asus_hotplug_work(struct work_struct *work)
1410{
1411 struct asus_wmi *asus;
1412
1413 asus = container_of(work, struct asus_wmi, hotplug_work);
1414 asus_rfkill_hotplug(asus);
1415}
1416
1417static int asus_setup_pci_hotplug(struct asus_wmi *asus)
1418{
1419 int ret = -ENOMEM;
1420 struct pci_bus *bus = pci_find_bus(0, 1);
1421
1422 if (!bus) {
1423 pr_err("Unable to find wifi PCI bus\n");
1424 return -ENODEV;
1425 }
1426
1427 asus->hotplug_workqueue =
1428 create_singlethread_workqueue("hotplug_workqueue");
1429 if (!asus->hotplug_workqueue)
1430 goto error_workqueue;
1431
1432 INIT_WORK(&asus->hotplug_work, asus_hotplug_work);
1433
1434 asus->hotplug_slot.ops = &asus_hotplug_slot_ops;
1435
1436 ret = pci_hp_register(&asus->hotplug_slot, bus, 0, "asus-wifi");
1437 if (ret) {
1438 pr_err("Unable to register hotplug slot - %d\n", ret);
1439 goto error_register;
1440 }
1441
1442 return 0;
1443
1444error_register:
1445 asus->hotplug_slot.ops = NULL;
1446 destroy_workqueue(asus->hotplug_workqueue);
1447error_workqueue:
1448 return ret;
1449}
1450
1451/*
1452 * Rfkill devices
1453 */
1454static int asus_rfkill_set(void *data, bool blocked)
1455{
1456 struct asus_rfkill *priv = data;
1457 u32 ctrl_param = !blocked;
1458 u32 dev_id = priv->dev_id;
1459
1460 /*
1461 * If the user bit is set, BIOS can't set and record the wlan status,
1462 * it will report the value read from id ASUS_WMI_DEVID_WLAN_LED
1463 * while we query the wlan status through WMI(ASUS_WMI_DEVID_WLAN).
1464 * So, we have to record wlan status in id ASUS_WMI_DEVID_WLAN_LED
1465 * while setting the wlan status through WMI.
1466 * This is also the behavior that windows app will do.
1467 */
1468 if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
1469 priv->asus->driver->wlan_ctrl_by_user)
1470 dev_id = ASUS_WMI_DEVID_WLAN_LED;
1471
1472 return asus_wmi_set_devstate(dev_id, ctrl_param, NULL);
1473}
1474
1475static void asus_rfkill_query(struct rfkill *rfkill, void *data)
1476{
1477 struct asus_rfkill *priv = data;
1478 int result;
1479
1480 result = asus_wmi_get_devstate_simple(priv->asus, priv->dev_id);
1481
1482 if (result < 0)
1483 return;
1484
1485 rfkill_set_sw_state(priv->rfkill, !result);
1486}
1487
1488static int asus_rfkill_wlan_set(void *data, bool blocked)
1489{
1490 struct asus_rfkill *priv = data;
1491 struct asus_wmi *asus = priv->asus;
1492 int ret;
1493
1494 /*
1495 * This handler is enabled only if hotplug is enabled.
1496 * In this case, the asus_wmi_set_devstate() will
1497 * trigger a wmi notification and we need to wait
1498 * this call to finish before being able to call
1499 * any wmi method
1500 */
1501 mutex_lock(&asus->wmi_lock);
1502 ret = asus_rfkill_set(data, blocked);
1503 mutex_unlock(&asus->wmi_lock);
1504 return ret;
1505}
1506
1507static const struct rfkill_ops asus_rfkill_wlan_ops = {
1508 .set_block = asus_rfkill_wlan_set,
1509 .query = asus_rfkill_query,
1510};
1511
1512static const struct rfkill_ops asus_rfkill_ops = {
1513 .set_block = asus_rfkill_set,
1514 .query = asus_rfkill_query,
1515};
1516
1517static int asus_new_rfkill(struct asus_wmi *asus,
1518 struct asus_rfkill *arfkill,
1519 const char *name, enum rfkill_type type, int dev_id)
1520{
1521 int result = asus_wmi_get_devstate_simple(asus, dev_id);
1522 struct rfkill **rfkill = &arfkill->rfkill;
1523
1524 if (result < 0)
1525 return result;
1526
1527 arfkill->dev_id = dev_id;
1528 arfkill->asus = asus;
1529
1530 if (dev_id == ASUS_WMI_DEVID_WLAN &&
1531 asus->driver->quirks->hotplug_wireless)
1532 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
1533 &asus_rfkill_wlan_ops, arfkill);
1534 else
1535 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
1536 &asus_rfkill_ops, arfkill);
1537
1538 if (!*rfkill)
1539 return -EINVAL;
1540
1541 if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
1542 (asus->driver->quirks->wapf > 0))
1543 rfkill_set_led_trigger_name(*rfkill, "asus-wlan");
1544
1545 rfkill_init_sw_state(*rfkill, !result);
1546 result = rfkill_register(*rfkill);
1547 if (result) {
1548 rfkill_destroy(*rfkill);
1549 *rfkill = NULL;
1550 return result;
1551 }
1552 return 0;
1553}
1554
1555static void asus_wmi_rfkill_exit(struct asus_wmi *asus)
1556{
1557 if (asus->driver->wlan_ctrl_by_user && ashs_present())
1558 return;
1559
1560 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
1561 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
1562 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
1563 if (asus->wlan.rfkill) {
1564 rfkill_unregister(asus->wlan.rfkill);
1565 rfkill_destroy(asus->wlan.rfkill);
1566 asus->wlan.rfkill = NULL;
1567 }
1568 /*
1569 * Refresh pci hotplug in case the rfkill state was changed after
1570 * asus_unregister_rfkill_notifier()
1571 */
1572 asus_rfkill_hotplug(asus);
1573 if (asus->hotplug_slot.ops)
1574 pci_hp_deregister(&asus->hotplug_slot);
1575 if (asus->hotplug_workqueue)
1576 destroy_workqueue(asus->hotplug_workqueue);
1577
1578 if (asus->bluetooth.rfkill) {
1579 rfkill_unregister(asus->bluetooth.rfkill);
1580 rfkill_destroy(asus->bluetooth.rfkill);
1581 asus->bluetooth.rfkill = NULL;
1582 }
1583 if (asus->wimax.rfkill) {
1584 rfkill_unregister(asus->wimax.rfkill);
1585 rfkill_destroy(asus->wimax.rfkill);
1586 asus->wimax.rfkill = NULL;
1587 }
1588 if (asus->wwan3g.rfkill) {
1589 rfkill_unregister(asus->wwan3g.rfkill);
1590 rfkill_destroy(asus->wwan3g.rfkill);
1591 asus->wwan3g.rfkill = NULL;
1592 }
1593 if (asus->gps.rfkill) {
1594 rfkill_unregister(asus->gps.rfkill);
1595 rfkill_destroy(asus->gps.rfkill);
1596 asus->gps.rfkill = NULL;
1597 }
1598 if (asus->uwb.rfkill) {
1599 rfkill_unregister(asus->uwb.rfkill);
1600 rfkill_destroy(asus->uwb.rfkill);
1601 asus->uwb.rfkill = NULL;
1602 }
1603}
1604
1605static int asus_wmi_rfkill_init(struct asus_wmi *asus)
1606{
1607 int result = 0;
1608
1609 mutex_init(&asus->hotplug_lock);
1610 mutex_init(&asus->wmi_lock);
1611
1612 result = asus_new_rfkill(asus, &asus->wlan, "asus-wlan",
1613 RFKILL_TYPE_WLAN, ASUS_WMI_DEVID_WLAN);
1614
1615 if (result && result != -ENODEV)
1616 goto exit;
1617
1618 result = asus_new_rfkill(asus, &asus->bluetooth,
1619 "asus-bluetooth", RFKILL_TYPE_BLUETOOTH,
1620 ASUS_WMI_DEVID_BLUETOOTH);
1621
1622 if (result && result != -ENODEV)
1623 goto exit;
1624
1625 result = asus_new_rfkill(asus, &asus->wimax, "asus-wimax",
1626 RFKILL_TYPE_WIMAX, ASUS_WMI_DEVID_WIMAX);
1627
1628 if (result && result != -ENODEV)
1629 goto exit;
1630
1631 result = asus_new_rfkill(asus, &asus->wwan3g, "asus-wwan3g",
1632 RFKILL_TYPE_WWAN, ASUS_WMI_DEVID_WWAN3G);
1633
1634 if (result && result != -ENODEV)
1635 goto exit;
1636
1637 result = asus_new_rfkill(asus, &asus->gps, "asus-gps",
1638 RFKILL_TYPE_GPS, ASUS_WMI_DEVID_GPS);
1639
1640 if (result && result != -ENODEV)
1641 goto exit;
1642
1643 result = asus_new_rfkill(asus, &asus->uwb, "asus-uwb",
1644 RFKILL_TYPE_UWB, ASUS_WMI_DEVID_UWB);
1645
1646 if (result && result != -ENODEV)
1647 goto exit;
1648
1649 if (!asus->driver->quirks->hotplug_wireless)
1650 goto exit;
1651
1652 result = asus_setup_pci_hotplug(asus);
1653 /*
1654 * If we get -EBUSY then something else is handling the PCI hotplug -
1655 * don't fail in this case
1656 */
1657 if (result == -EBUSY)
1658 result = 0;
1659
1660 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
1661 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
1662 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
1663 /*
1664 * Refresh pci hotplug in case the rfkill state was changed during
1665 * setup.
1666 */
1667 asus_rfkill_hotplug(asus);
1668
1669exit:
1670 if (result && result != -ENODEV)
1671 asus_wmi_rfkill_exit(asus);
1672
1673 if (result == -ENODEV)
1674 result = 0;
1675
1676 return result;
1677}
1678
1679/* Panel Overdrive ************************************************************/
1680static ssize_t panel_od_show(struct device *dev,
1681 struct device_attribute *attr, char *buf)
1682{
1683 struct asus_wmi *asus = dev_get_drvdata(dev);
1684 int result;
1685
1686 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_PANEL_OD);
1687 if (result < 0)
1688 return result;
1689
1690 return sysfs_emit(buf, "%d\n", result);
1691}
1692
1693static ssize_t panel_od_store(struct device *dev,
1694 struct device_attribute *attr,
1695 const char *buf, size_t count)
1696{
1697 int result, err;
1698 u32 overdrive;
1699
1700 struct asus_wmi *asus = dev_get_drvdata(dev);
1701
1702 result = kstrtou32(buf, 10, &overdrive);
1703 if (result)
1704 return result;
1705
1706 if (overdrive > 1)
1707 return -EINVAL;
1708
1709 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PANEL_OD, overdrive, &result);
1710
1711 if (err) {
1712 pr_warn("Failed to set panel overdrive: %d\n", err);
1713 return err;
1714 }
1715
1716 if (result > 1) {
1717 pr_warn("Failed to set panel overdrive (result): 0x%x\n", result);
1718 return -EIO;
1719 }
1720
1721 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "panel_od");
1722
1723 return count;
1724}
1725static DEVICE_ATTR_RW(panel_od);
1726
1727/* Quirks *********************************************************************/
1728
1729static void asus_wmi_set_xusb2pr(struct asus_wmi *asus)
1730{
1731 struct pci_dev *xhci_pdev;
1732 u32 orig_ports_available;
1733 u32 ports_available = asus->driver->quirks->xusb2pr;
1734
1735 xhci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
1736 PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI,
1737 NULL);
1738
1739 if (!xhci_pdev)
1740 return;
1741
1742 pci_read_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
1743 &orig_ports_available);
1744
1745 pci_write_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
1746 cpu_to_le32(ports_available));
1747
1748 pci_dev_put(xhci_pdev);
1749
1750 pr_info("set USB_INTEL_XUSB2PR old: 0x%04x, new: 0x%04x\n",
1751 orig_ports_available, ports_available);
1752}
1753
1754/*
1755 * Some devices dont support or have borcken get_als method
1756 * but still support set method.
1757 */
1758static void asus_wmi_set_als(void)
1759{
1760 asus_wmi_set_devstate(ASUS_WMI_DEVID_ALS_ENABLE, 1, NULL);
1761}
1762
1763/* Hwmon device ***************************************************************/
1764
1765static int asus_agfn_fan_speed_read(struct asus_wmi *asus, int fan,
1766 int *speed)
1767{
1768 struct agfn_fan_args args = {
1769 .agfn.len = sizeof(args),
1770 .agfn.mfun = ASUS_FAN_MFUN,
1771 .agfn.sfun = ASUS_FAN_SFUN_READ,
1772 .fan = fan,
1773 .speed = 0,
1774 };
1775 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
1776 int status;
1777
1778 if (fan != 1)
1779 return -EINVAL;
1780
1781 status = asus_wmi_evaluate_method_agfn(input);
1782
1783 if (status || args.agfn.err)
1784 return -ENXIO;
1785
1786 if (speed)
1787 *speed = args.speed;
1788
1789 return 0;
1790}
1791
1792static int asus_agfn_fan_speed_write(struct asus_wmi *asus, int fan,
1793 int *speed)
1794{
1795 struct agfn_fan_args args = {
1796 .agfn.len = sizeof(args),
1797 .agfn.mfun = ASUS_FAN_MFUN,
1798 .agfn.sfun = ASUS_FAN_SFUN_WRITE,
1799 .fan = fan,
1800 .speed = speed ? *speed : 0,
1801 };
1802 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
1803 int status;
1804
1805 /* 1: for setting 1st fan's speed 0: setting auto mode */
1806 if (fan != 1 && fan != 0)
1807 return -EINVAL;
1808
1809 status = asus_wmi_evaluate_method_agfn(input);
1810
1811 if (status || args.agfn.err)
1812 return -ENXIO;
1813
1814 if (speed && fan == 1)
1815 asus->agfn_pwm = *speed;
1816
1817 return 0;
1818}
1819
1820/*
1821 * Check if we can read the speed of one fan. If true we assume we can also
1822 * control it.
1823 */
1824static bool asus_wmi_has_agfn_fan(struct asus_wmi *asus)
1825{
1826 int status;
1827 int speed;
1828 u32 value;
1829
1830 status = asus_agfn_fan_speed_read(asus, 1, &speed);
1831 if (status != 0)
1832 return false;
1833
1834 status = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
1835 if (status != 0)
1836 return false;
1837
1838 /*
1839 * We need to find a better way, probably using sfun,
1840 * bits or spec ...
1841 * Currently we disable it if:
1842 * - ASUS_WMI_UNSUPPORTED_METHOD is returned
1843 * - reverved bits are non-zero
1844 * - sfun and presence bit are not set
1845 */
1846 return !(value == ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000
1847 || (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT)));
1848}
1849
1850static int asus_fan_set_auto(struct asus_wmi *asus)
1851{
1852 int status;
1853 u32 retval;
1854
1855 switch (asus->fan_type) {
1856 case FAN_TYPE_SPEC83:
1857 status = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL,
1858 0, &retval);
1859 if (status)
1860 return status;
1861
1862 if (retval != 1)
1863 return -EIO;
1864 break;
1865
1866 case FAN_TYPE_AGFN:
1867 status = asus_agfn_fan_speed_write(asus, 0, NULL);
1868 if (status)
1869 return -ENXIO;
1870 break;
1871
1872 default:
1873 return -ENXIO;
1874 }
1875
1876 /*
1877 * Modern models like the G713 also have GPU fan control (this is not AGFN)
1878 */
1879 if (asus->gpu_fan_type == FAN_TYPE_SPEC83) {
1880 status = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
1881 0, &retval);
1882 if (status)
1883 return status;
1884
1885 if (retval != 1)
1886 return -EIO;
1887 }
1888
1889 return 0;
1890}
1891
1892static ssize_t pwm1_show(struct device *dev,
1893 struct device_attribute *attr,
1894 char *buf)
1895{
1896 struct asus_wmi *asus = dev_get_drvdata(dev);
1897 int err;
1898 int value;
1899
1900 /* If we already set a value then just return it */
1901 if (asus->agfn_pwm >= 0)
1902 return sprintf(buf, "%d\n", asus->agfn_pwm);
1903
1904 /*
1905 * If we haven't set already set a value through the AGFN interface,
1906 * we read a current value through the (now-deprecated) FAN_CTRL device.
1907 */
1908 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
1909 if (err < 0)
1910 return err;
1911
1912 value &= 0xFF;
1913
1914 if (value == 1) /* Low Speed */
1915 value = 85;
1916 else if (value == 2)
1917 value = 170;
1918 else if (value == 3)
1919 value = 255;
1920 else if (value) {
1921 pr_err("Unknown fan speed %#x\n", value);
1922 value = -1;
1923 }
1924
1925 return sysfs_emit(buf, "%d\n", value);
1926}
1927
1928static ssize_t pwm1_store(struct device *dev,
1929 struct device_attribute *attr,
1930 const char *buf, size_t count) {
1931 struct asus_wmi *asus = dev_get_drvdata(dev);
1932 int value;
1933 int state;
1934 int ret;
1935
1936 ret = kstrtouint(buf, 10, &value);
1937 if (ret)
1938 return ret;
1939
1940 value = clamp(value, 0, 255);
1941
1942 state = asus_agfn_fan_speed_write(asus, 1, &value);
1943 if (state)
1944 pr_warn("Setting fan speed failed: %d\n", state);
1945 else
1946 asus->fan_pwm_mode = ASUS_FAN_CTRL_MANUAL;
1947
1948 return count;
1949}
1950
1951static ssize_t fan1_input_show(struct device *dev,
1952 struct device_attribute *attr,
1953 char *buf)
1954{
1955 struct asus_wmi *asus = dev_get_drvdata(dev);
1956 int value;
1957 int ret;
1958
1959 switch (asus->fan_type) {
1960 case FAN_TYPE_SPEC83:
1961 ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL,
1962 &value);
1963 if (ret < 0)
1964 return ret;
1965
1966 value &= 0xffff;
1967 break;
1968
1969 case FAN_TYPE_AGFN:
1970 /* no speed readable on manual mode */
1971 if (asus->fan_pwm_mode == ASUS_FAN_CTRL_MANUAL)
1972 return -ENXIO;
1973
1974 ret = asus_agfn_fan_speed_read(asus, 1, &value);
1975 if (ret) {
1976 pr_warn("reading fan speed failed: %d\n", ret);
1977 return -ENXIO;
1978 }
1979 break;
1980
1981 default:
1982 return -ENXIO;
1983 }
1984
1985 return sysfs_emit(buf, "%d\n", value < 0 ? -1 : value * 100);
1986}
1987
1988static ssize_t pwm1_enable_show(struct device *dev,
1989 struct device_attribute *attr,
1990 char *buf)
1991{
1992 struct asus_wmi *asus = dev_get_drvdata(dev);
1993
1994 /*
1995 * Just read back the cached pwm mode.
1996 *
1997 * For the CPU_FAN device, the spec indicates that we should be
1998 * able to read the device status and consult bit 19 to see if we
1999 * are in Full On or Automatic mode. However, this does not work
2000 * in practice on X532FL at least (the bit is always 0) and there's
2001 * also nothing in the DSDT to indicate that this behaviour exists.
2002 */
2003 return sysfs_emit(buf, "%d\n", asus->fan_pwm_mode);
2004}
2005
2006static ssize_t pwm1_enable_store(struct device *dev,
2007 struct device_attribute *attr,
2008 const char *buf, size_t count)
2009{
2010 struct asus_wmi *asus = dev_get_drvdata(dev);
2011 int status = 0;
2012 int state;
2013 int value;
2014 int ret;
2015 u32 retval;
2016
2017 ret = kstrtouint(buf, 10, &state);
2018 if (ret)
2019 return ret;
2020
2021 if (asus->fan_type == FAN_TYPE_SPEC83) {
2022 switch (state) { /* standard documented hwmon values */
2023 case ASUS_FAN_CTRL_FULLSPEED:
2024 value = 1;
2025 break;
2026 case ASUS_FAN_CTRL_AUTO:
2027 value = 0;
2028 break;
2029 default:
2030 return -EINVAL;
2031 }
2032
2033 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL,
2034 value, &retval);
2035 if (ret)
2036 return ret;
2037
2038 if (retval != 1)
2039 return -EIO;
2040 } else if (asus->fan_type == FAN_TYPE_AGFN) {
2041 switch (state) {
2042 case ASUS_FAN_CTRL_MANUAL:
2043 break;
2044
2045 case ASUS_FAN_CTRL_AUTO:
2046 status = asus_fan_set_auto(asus);
2047 if (status)
2048 return status;
2049 break;
2050
2051 default:
2052 return -EINVAL;
2053 }
2054 }
2055
2056 asus->fan_pwm_mode = state;
2057
2058 /* Must set to disabled if mode is toggled */
2059 if (asus->cpu_fan_curve_available)
2060 asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false;
2061 if (asus->gpu_fan_curve_available)
2062 asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false;
2063
2064 return count;
2065}
2066
2067static ssize_t fan1_label_show(struct device *dev,
2068 struct device_attribute *attr,
2069 char *buf)
2070{
2071 return sysfs_emit(buf, "%s\n", ASUS_FAN_DESC);
2072}
2073
2074static ssize_t asus_hwmon_temp1(struct device *dev,
2075 struct device_attribute *attr,
2076 char *buf)
2077{
2078 struct asus_wmi *asus = dev_get_drvdata(dev);
2079 u32 value;
2080 int err;
2081
2082 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_THERMAL_CTRL, &value);
2083 if (err < 0)
2084 return err;
2085
2086 return sprintf(buf, "%ld\n",
2087 deci_kelvin_to_millicelsius(value & 0xFFFF));
2088}
2089
2090/* GPU fan on modern ROG laptops */
2091static ssize_t fan2_input_show(struct device *dev,
2092 struct device_attribute *attr,
2093 char *buf)
2094{
2095 struct asus_wmi *asus = dev_get_drvdata(dev);
2096 int value;
2097 int ret;
2098
2099 ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL, &value);
2100 if (ret < 0)
2101 return ret;
2102
2103 value &= 0xffff;
2104
2105 return sysfs_emit(buf, "%d\n", value * 100);
2106}
2107
2108static ssize_t fan2_label_show(struct device *dev,
2109 struct device_attribute *attr,
2110 char *buf)
2111{
2112 return sysfs_emit(buf, "%s\n", ASUS_GPU_FAN_DESC);
2113}
2114
2115static ssize_t pwm2_enable_show(struct device *dev,
2116 struct device_attribute *attr,
2117 char *buf)
2118{
2119 struct asus_wmi *asus = dev_get_drvdata(dev);
2120
2121 return sysfs_emit(buf, "%d\n", asus->gpu_fan_pwm_mode);
2122}
2123
2124static ssize_t pwm2_enable_store(struct device *dev,
2125 struct device_attribute *attr,
2126 const char *buf, size_t count)
2127{
2128 struct asus_wmi *asus = dev_get_drvdata(dev);
2129 int state;
2130 int value;
2131 int ret;
2132 u32 retval;
2133
2134 ret = kstrtouint(buf, 10, &state);
2135 if (ret)
2136 return ret;
2137
2138 switch (state) { /* standard documented hwmon values */
2139 case ASUS_FAN_CTRL_FULLSPEED:
2140 value = 1;
2141 break;
2142 case ASUS_FAN_CTRL_AUTO:
2143 value = 0;
2144 break;
2145 default:
2146 return -EINVAL;
2147 }
2148
2149 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
2150 value, &retval);
2151 if (ret)
2152 return ret;
2153
2154 if (retval != 1)
2155 return -EIO;
2156
2157 asus->gpu_fan_pwm_mode = state;
2158 return count;
2159}
2160
2161/* Fan1 */
2162static DEVICE_ATTR_RW(pwm1);
2163static DEVICE_ATTR_RW(pwm1_enable);
2164static DEVICE_ATTR_RO(fan1_input);
2165static DEVICE_ATTR_RO(fan1_label);
2166/* Fan2 - GPU fan */
2167static DEVICE_ATTR_RW(pwm2_enable);
2168static DEVICE_ATTR_RO(fan2_input);
2169static DEVICE_ATTR_RO(fan2_label);
2170
2171/* Temperature */
2172static DEVICE_ATTR(temp1_input, S_IRUGO, asus_hwmon_temp1, NULL);
2173
2174static struct attribute *hwmon_attributes[] = {
2175 &dev_attr_pwm1.attr,
2176 &dev_attr_pwm1_enable.attr,
2177 &dev_attr_pwm2_enable.attr,
2178 &dev_attr_fan1_input.attr,
2179 &dev_attr_fan1_label.attr,
2180 &dev_attr_fan2_input.attr,
2181 &dev_attr_fan2_label.attr,
2182
2183 &dev_attr_temp1_input.attr,
2184 NULL
2185};
2186
2187static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
2188 struct attribute *attr, int idx)
2189{
2190 struct device *dev = kobj_to_dev(kobj);
2191 struct asus_wmi *asus = dev_get_drvdata(dev->parent);
2192 u32 value = ASUS_WMI_UNSUPPORTED_METHOD;
2193
2194 if (attr == &dev_attr_pwm1.attr) {
2195 if (asus->fan_type != FAN_TYPE_AGFN)
2196 return 0;
2197 } else if (attr == &dev_attr_fan1_input.attr
2198 || attr == &dev_attr_fan1_label.attr
2199 || attr == &dev_attr_pwm1_enable.attr) {
2200 if (asus->fan_type == FAN_TYPE_NONE)
2201 return 0;
2202 } else if (attr == &dev_attr_fan2_input.attr
2203 || attr == &dev_attr_fan2_label.attr
2204 || attr == &dev_attr_pwm2_enable.attr) {
2205 if (asus->gpu_fan_type == FAN_TYPE_NONE)
2206 return 0;
2207 } else if (attr == &dev_attr_temp1_input.attr) {
2208 int err = asus_wmi_get_devstate(asus,
2209 ASUS_WMI_DEVID_THERMAL_CTRL,
2210 &value);
2211
2212 if (err < 0)
2213 return 0; /* can't return negative here */
2214
2215 /*
2216 * If the temperature value in deci-Kelvin is near the absolute
2217 * zero temperature, something is clearly wrong
2218 */
2219 if (value == 0 || value == 1)
2220 return 0;
2221 }
2222
2223 return attr->mode;
2224}
2225
2226static const struct attribute_group hwmon_attribute_group = {
2227 .is_visible = asus_hwmon_sysfs_is_visible,
2228 .attrs = hwmon_attributes
2229};
2230__ATTRIBUTE_GROUPS(hwmon_attribute);
2231
2232static int asus_wmi_hwmon_init(struct asus_wmi *asus)
2233{
2234 struct device *dev = &asus->platform_device->dev;
2235 struct device *hwmon;
2236
2237 hwmon = devm_hwmon_device_register_with_groups(dev, "asus", asus,
2238 hwmon_attribute_groups);
2239
2240 if (IS_ERR(hwmon)) {
2241 pr_err("Could not register asus hwmon device\n");
2242 return PTR_ERR(hwmon);
2243 }
2244 return 0;
2245}
2246
2247static int asus_wmi_fan_init(struct asus_wmi *asus)
2248{
2249 asus->gpu_fan_type = FAN_TYPE_NONE;
2250 asus->fan_type = FAN_TYPE_NONE;
2251 asus->agfn_pwm = -1;
2252
2253 if (asus->driver->quirks->wmi_ignore_fan)
2254 asus->fan_type = FAN_TYPE_NONE;
2255 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL))
2256 asus->fan_type = FAN_TYPE_SPEC83;
2257 else if (asus_wmi_has_agfn_fan(asus))
2258 asus->fan_type = FAN_TYPE_AGFN;
2259
2260 /* Modern models like G713 also have GPU fan control */
2261 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL))
2262 asus->gpu_fan_type = FAN_TYPE_SPEC83;
2263
2264 if (asus->fan_type == FAN_TYPE_NONE)
2265 return -ENODEV;
2266
2267 asus_fan_set_auto(asus);
2268 asus->fan_pwm_mode = ASUS_FAN_CTRL_AUTO;
2269 return 0;
2270}
2271
2272/* Fan mode *******************************************************************/
2273
2274static int fan_boost_mode_check_present(struct asus_wmi *asus)
2275{
2276 u32 result;
2277 int err;
2278
2279 asus->fan_boost_mode_available = false;
2280
2281 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_BOOST_MODE,
2282 &result);
2283 if (err) {
2284 if (err == -ENODEV)
2285 return 0;
2286 else
2287 return err;
2288 }
2289
2290 if ((result & ASUS_WMI_DSTS_PRESENCE_BIT) &&
2291 (result & ASUS_FAN_BOOST_MODES_MASK)) {
2292 asus->fan_boost_mode_available = true;
2293 asus->fan_boost_mode_mask = result & ASUS_FAN_BOOST_MODES_MASK;
2294 }
2295
2296 return 0;
2297}
2298
2299static int fan_boost_mode_write(struct asus_wmi *asus)
2300{
2301 u32 retval;
2302 u8 value;
2303 int err;
2304
2305 value = asus->fan_boost_mode;
2306
2307 pr_info("Set fan boost mode: %u\n", value);
2308 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_FAN_BOOST_MODE, value,
2309 &retval);
2310
2311 sysfs_notify(&asus->platform_device->dev.kobj, NULL,
2312 "fan_boost_mode");
2313
2314 if (err) {
2315 pr_warn("Failed to set fan boost mode: %d\n", err);
2316 return err;
2317 }
2318
2319 if (retval != 1) {
2320 pr_warn("Failed to set fan boost mode (retval): 0x%x\n",
2321 retval);
2322 return -EIO;
2323 }
2324
2325 return 0;
2326}
2327
2328static int fan_boost_mode_switch_next(struct asus_wmi *asus)
2329{
2330 u8 mask = asus->fan_boost_mode_mask;
2331
2332 if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_NORMAL) {
2333 if (mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK)
2334 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_OVERBOOST;
2335 else if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK)
2336 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT;
2337 } else if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) {
2338 if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK)
2339 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT;
2340 else
2341 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL;
2342 } else {
2343 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL;
2344 }
2345
2346 return fan_boost_mode_write(asus);
2347}
2348
2349static ssize_t fan_boost_mode_show(struct device *dev,
2350 struct device_attribute *attr, char *buf)
2351{
2352 struct asus_wmi *asus = dev_get_drvdata(dev);
2353
2354 return sysfs_emit(buf, "%d\n", asus->fan_boost_mode);
2355}
2356
2357static ssize_t fan_boost_mode_store(struct device *dev,
2358 struct device_attribute *attr,
2359 const char *buf, size_t count)
2360{
2361 struct asus_wmi *asus = dev_get_drvdata(dev);
2362 u8 mask = asus->fan_boost_mode_mask;
2363 u8 new_mode;
2364 int result;
2365
2366 result = kstrtou8(buf, 10, &new_mode);
2367 if (result < 0) {
2368 pr_warn("Trying to store invalid value\n");
2369 return result;
2370 }
2371
2372 if (new_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) {
2373 if (!(mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK))
2374 return -EINVAL;
2375 } else if (new_mode == ASUS_FAN_BOOST_MODE_SILENT) {
2376 if (!(mask & ASUS_FAN_BOOST_MODE_SILENT_MASK))
2377 return -EINVAL;
2378 } else if (new_mode != ASUS_FAN_BOOST_MODE_NORMAL) {
2379 return -EINVAL;
2380 }
2381
2382 asus->fan_boost_mode = new_mode;
2383 fan_boost_mode_write(asus);
2384
2385 return count;
2386}
2387
2388// Fan boost mode: 0 - normal, 1 - overboost, 2 - silent
2389static DEVICE_ATTR_RW(fan_boost_mode);
2390
2391/* Custom fan curves **********************************************************/
2392
2393static void fan_curve_copy_from_buf(struct fan_curve_data *data, u8 *buf)
2394{
2395 int i;
2396
2397 for (i = 0; i < FAN_CURVE_POINTS; i++) {
2398 data->temps[i] = buf[i];
2399 }
2400
2401 for (i = 0; i < FAN_CURVE_POINTS; i++) {
2402 data->percents[i] =
2403 255 * buf[i + FAN_CURVE_POINTS] / 100;
2404 }
2405}
2406
2407static int fan_curve_get_factory_default(struct asus_wmi *asus, u32 fan_dev)
2408{
2409 struct fan_curve_data *curves;
2410 u8 buf[FAN_CURVE_BUF_LEN];
2411 int fan_idx = 0;
2412 u8 mode = 0;
2413 int err;
2414
2415 if (asus->throttle_thermal_policy_available)
2416 mode = asus->throttle_thermal_policy_mode;
2417 /* DEVID_<C/G>PU_FAN_CURVE is switched for OVERBOOST vs SILENT */
2418 if (mode == 2)
2419 mode = 1;
2420 else if (mode == 1)
2421 mode = 2;
2422
2423 if (fan_dev == ASUS_WMI_DEVID_GPU_FAN_CURVE)
2424 fan_idx = FAN_CURVE_DEV_GPU;
2425
2426 curves = &asus->custom_fan_curves[fan_idx];
2427 err = asus_wmi_evaluate_method_buf(asus->dsts_id, fan_dev, mode, buf,
2428 FAN_CURVE_BUF_LEN);
2429 if (err) {
2430 pr_warn("%s (0x%08x) failed: %d\n", __func__, fan_dev, err);
2431 return err;
2432 }
2433
2434 fan_curve_copy_from_buf(curves, buf);
2435 curves->device_id = fan_dev;
2436
2437 return 0;
2438}
2439
2440/* Check if capability exists, and populate defaults */
2441static int fan_curve_check_present(struct asus_wmi *asus, bool *available,
2442 u32 fan_dev)
2443{
2444 int err;
2445
2446 *available = false;
2447
2448 if (asus->fan_type == FAN_TYPE_NONE)
2449 return 0;
2450
2451 err = fan_curve_get_factory_default(asus, fan_dev);
2452 if (err) {
2453 return 0;
2454 }
2455
2456 *available = true;
2457 return 0;
2458}
2459
2460/* Determine which fan the attribute is for if SENSOR_ATTR */
2461static struct fan_curve_data *fan_curve_attr_select(struct asus_wmi *asus,
2462 struct device_attribute *attr)
2463{
2464 int index = to_sensor_dev_attr(attr)->index;
2465
2466 return &asus->custom_fan_curves[index & FAN_CURVE_DEV_GPU];
2467}
2468
2469/* Determine which fan the attribute is for if SENSOR_ATTR_2 */
2470static struct fan_curve_data *fan_curve_attr_2_select(struct asus_wmi *asus,
2471 struct device_attribute *attr)
2472{
2473 int nr = to_sensor_dev_attr_2(attr)->nr;
2474
2475 return &asus->custom_fan_curves[nr & FAN_CURVE_DEV_GPU];
2476}
2477
2478static ssize_t fan_curve_show(struct device *dev,
2479 struct device_attribute *attr, char *buf)
2480{
2481 struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr);
2482 struct asus_wmi *asus = dev_get_drvdata(dev);
2483 struct fan_curve_data *data;
2484 int value, index, nr;
2485
2486 data = fan_curve_attr_2_select(asus, attr);
2487 index = dev_attr->index;
2488 nr = dev_attr->nr;
2489
2490 if (nr & FAN_CURVE_PWM_MASK)
2491 value = data->percents[index];
2492 else
2493 value = data->temps[index];
2494
2495 return sysfs_emit(buf, "%d\n", value);
2496}
2497
2498/*
2499 * "fan_dev" is the related WMI method such as ASUS_WMI_DEVID_CPU_FAN_CURVE.
2500 */
2501static int fan_curve_write(struct asus_wmi *asus,
2502 struct fan_curve_data *data)
2503{
2504 u32 arg1 = 0, arg2 = 0, arg3 = 0, arg4 = 0;
2505 u8 *percents = data->percents;
2506 u8 *temps = data->temps;
2507 int ret, i, shift = 0;
2508
2509 if (!data->enabled)
2510 return 0;
2511
2512 for (i = 0; i < FAN_CURVE_POINTS / 2; i++) {
2513 arg1 += (temps[i]) << shift;
2514 arg2 += (temps[i + 4]) << shift;
2515 /* Scale to percentage for device */
2516 arg3 += (100 * percents[i] / 255) << shift;
2517 arg4 += (100 * percents[i + 4] / 255) << shift;
2518 shift += 8;
2519 }
2520
2521 return asus_wmi_evaluate_method5(ASUS_WMI_METHODID_DEVS,
2522 data->device_id,
2523 arg1, arg2, arg3, arg4, &ret);
2524}
2525
2526static ssize_t fan_curve_store(struct device *dev,
2527 struct device_attribute *attr, const char *buf,
2528 size_t count)
2529{
2530 struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr);
2531 struct asus_wmi *asus = dev_get_drvdata(dev);
2532 struct fan_curve_data *data;
2533 u8 value;
2534 int err;
2535
2536 int pwm = dev_attr->nr & FAN_CURVE_PWM_MASK;
2537 int index = dev_attr->index;
2538
2539 data = fan_curve_attr_2_select(asus, attr);
2540
2541 err = kstrtou8(buf, 10, &value);
2542 if (err < 0)
2543 return err;
2544
2545 if (pwm) {
2546 data->percents[index] = value;
2547 } else {
2548 data->temps[index] = value;
2549 }
2550
2551 /*
2552 * Mark as disabled so the user has to explicitly enable to apply a
2553 * changed fan curve. This prevents potential lockups from writing out
2554 * many changes as one-write-per-change.
2555 */
2556 data->enabled = false;
2557
2558 return count;
2559}
2560
2561static ssize_t fan_curve_enable_show(struct device *dev,
2562 struct device_attribute *attr, char *buf)
2563{
2564 struct asus_wmi *asus = dev_get_drvdata(dev);
2565 struct fan_curve_data *data;
2566 int out = 2;
2567
2568 data = fan_curve_attr_select(asus, attr);
2569
2570 if (data->enabled)
2571 out = 1;
2572
2573 return sysfs_emit(buf, "%d\n", out);
2574}
2575
2576static ssize_t fan_curve_enable_store(struct device *dev,
2577 struct device_attribute *attr,
2578 const char *buf, size_t count)
2579{
2580 struct asus_wmi *asus = dev_get_drvdata(dev);
2581 struct fan_curve_data *data;
2582 int value, err;
2583
2584 data = fan_curve_attr_select(asus, attr);
2585
2586 err = kstrtoint(buf, 10, &value);
2587 if (err < 0)
2588 return err;
2589
2590 switch (value) {
2591 case 1:
2592 data->enabled = true;
2593 break;
2594 case 2:
2595 data->enabled = false;
2596 break;
2597 /*
2598 * Auto + reset the fan curve data to defaults. Make it an explicit
2599 * option so that users don't accidentally overwrite a set fan curve.
2600 */
2601 case 3:
2602 err = fan_curve_get_factory_default(asus, data->device_id);
2603 if (err)
2604 return err;
2605 data->enabled = false;
2606 break;
2607 default:
2608 return -EINVAL;
2609 }
2610
2611 if (data->enabled) {
2612 err = fan_curve_write(asus, data);
2613 if (err)
2614 return err;
2615 } else {
2616 /*
2617 * For machines with throttle this is the only way to reset fans
2618 * to default mode of operation (does not erase curve data).
2619 */
2620 if (asus->throttle_thermal_policy_available) {
2621 err = throttle_thermal_policy_write(asus);
2622 if (err)
2623 return err;
2624 /* Similar is true for laptops with this fan */
2625 } else if (asus->fan_type == FAN_TYPE_SPEC83) {
2626 err = asus_fan_set_auto(asus);
2627 if (err)
2628 return err;
2629 } else {
2630 /* Safeguard against fautly ACPI tables */
2631 err = fan_curve_get_factory_default(asus, data->device_id);
2632 if (err)
2633 return err;
2634 err = fan_curve_write(asus, data);
2635 if (err)
2636 return err;
2637 }
2638 }
2639 return count;
2640}
2641
2642/* CPU */
2643static SENSOR_DEVICE_ATTR_RW(pwm1_enable, fan_curve_enable, FAN_CURVE_DEV_CPU);
2644static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_temp, fan_curve,
2645 FAN_CURVE_DEV_CPU, 0);
2646static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_temp, fan_curve,
2647 FAN_CURVE_DEV_CPU, 1);
2648static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_temp, fan_curve,
2649 FAN_CURVE_DEV_CPU, 2);
2650static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_temp, fan_curve,
2651 FAN_CURVE_DEV_CPU, 3);
2652static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_temp, fan_curve,
2653 FAN_CURVE_DEV_CPU, 4);
2654static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_temp, fan_curve,
2655 FAN_CURVE_DEV_CPU, 5);
2656static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_temp, fan_curve,
2657 FAN_CURVE_DEV_CPU, 6);
2658static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_temp, fan_curve,
2659 FAN_CURVE_DEV_CPU, 7);
2660
2661static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_pwm, fan_curve,
2662 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 0);
2663static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_pwm, fan_curve,
2664 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 1);
2665static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_pwm, fan_curve,
2666 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 2);
2667static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_pwm, fan_curve,
2668 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 3);
2669static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_pwm, fan_curve,
2670 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 4);
2671static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_pwm, fan_curve,
2672 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 5);
2673static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_pwm, fan_curve,
2674 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 6);
2675static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_pwm, fan_curve,
2676 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 7);
2677
2678/* GPU */
2679static SENSOR_DEVICE_ATTR_RW(pwm2_enable, fan_curve_enable, FAN_CURVE_DEV_GPU);
2680static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_temp, fan_curve,
2681 FAN_CURVE_DEV_GPU, 0);
2682static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_temp, fan_curve,
2683 FAN_CURVE_DEV_GPU, 1);
2684static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_temp, fan_curve,
2685 FAN_CURVE_DEV_GPU, 2);
2686static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_temp, fan_curve,
2687 FAN_CURVE_DEV_GPU, 3);
2688static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_temp, fan_curve,
2689 FAN_CURVE_DEV_GPU, 4);
2690static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_temp, fan_curve,
2691 FAN_CURVE_DEV_GPU, 5);
2692static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_temp, fan_curve,
2693 FAN_CURVE_DEV_GPU, 6);
2694static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_temp, fan_curve,
2695 FAN_CURVE_DEV_GPU, 7);
2696
2697static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_pwm, fan_curve,
2698 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 0);
2699static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_pwm, fan_curve,
2700 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 1);
2701static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_pwm, fan_curve,
2702 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 2);
2703static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_pwm, fan_curve,
2704 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 3);
2705static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_pwm, fan_curve,
2706 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 4);
2707static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_pwm, fan_curve,
2708 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 5);
2709static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_pwm, fan_curve,
2710 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 6);
2711static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_pwm, fan_curve,
2712 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 7);
2713
2714static struct attribute *asus_fan_curve_attr[] = {
2715 /* CPU */
2716 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
2717 &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
2718 &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
2719 &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
2720 &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
2721 &sensor_dev_attr_pwm1_auto_point5_temp.dev_attr.attr,
2722 &sensor_dev_attr_pwm1_auto_point6_temp.dev_attr.attr,
2723 &sensor_dev_attr_pwm1_auto_point7_temp.dev_attr.attr,
2724 &sensor_dev_attr_pwm1_auto_point8_temp.dev_attr.attr,
2725 &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
2726 &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
2727 &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
2728 &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
2729 &sensor_dev_attr_pwm1_auto_point5_pwm.dev_attr.attr,
2730 &sensor_dev_attr_pwm1_auto_point6_pwm.dev_attr.attr,
2731 &sensor_dev_attr_pwm1_auto_point7_pwm.dev_attr.attr,
2732 &sensor_dev_attr_pwm1_auto_point8_pwm.dev_attr.attr,
2733 /* GPU */
2734 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
2735 &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
2736 &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
2737 &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
2738 &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
2739 &sensor_dev_attr_pwm2_auto_point5_temp.dev_attr.attr,
2740 &sensor_dev_attr_pwm2_auto_point6_temp.dev_attr.attr,
2741 &sensor_dev_attr_pwm2_auto_point7_temp.dev_attr.attr,
2742 &sensor_dev_attr_pwm2_auto_point8_temp.dev_attr.attr,
2743 &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
2744 &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
2745 &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
2746 &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,
2747 &sensor_dev_attr_pwm2_auto_point5_pwm.dev_attr.attr,
2748 &sensor_dev_attr_pwm2_auto_point6_pwm.dev_attr.attr,
2749 &sensor_dev_attr_pwm2_auto_point7_pwm.dev_attr.attr,
2750 &sensor_dev_attr_pwm2_auto_point8_pwm.dev_attr.attr,
2751 NULL
2752};
2753
2754static umode_t asus_fan_curve_is_visible(struct kobject *kobj,
2755 struct attribute *attr, int idx)
2756{
2757 struct device *dev = kobj_to_dev(kobj);
2758 struct asus_wmi *asus = dev_get_drvdata(dev->parent);
2759
2760 /*
2761 * Check the char instead of casting attr as there are two attr types
2762 * involved here (attr1 and attr2)
2763 */
2764 if (asus->cpu_fan_curve_available && attr->name[3] == '1')
2765 return 0644;
2766
2767 if (asus->gpu_fan_curve_available && attr->name[3] == '2')
2768 return 0644;
2769
2770 return 0;
2771}
2772
2773static const struct attribute_group asus_fan_curve_attr_group = {
2774 .is_visible = asus_fan_curve_is_visible,
2775 .attrs = asus_fan_curve_attr,
2776};
2777__ATTRIBUTE_GROUPS(asus_fan_curve_attr);
2778
2779/*
2780 * Must be initialised after throttle_thermal_policy_check_present() as
2781 * we check the status of throttle_thermal_policy_available during init.
2782 */
2783static int asus_wmi_custom_fan_curve_init(struct asus_wmi *asus)
2784{
2785 struct device *dev = &asus->platform_device->dev;
2786 struct device *hwmon;
2787 int err;
2788
2789 err = fan_curve_check_present(asus, &asus->cpu_fan_curve_available,
2790 ASUS_WMI_DEVID_CPU_FAN_CURVE);
2791 if (err)
2792 return err;
2793
2794 err = fan_curve_check_present(asus, &asus->gpu_fan_curve_available,
2795 ASUS_WMI_DEVID_GPU_FAN_CURVE);
2796 if (err)
2797 return err;
2798
2799 if (!asus->cpu_fan_curve_available && !asus->gpu_fan_curve_available)
2800 return 0;
2801
2802 hwmon = devm_hwmon_device_register_with_groups(
2803 dev, "asus_custom_fan_curve", asus, asus_fan_curve_attr_groups);
2804
2805 if (IS_ERR(hwmon)) {
2806 dev_err(dev,
2807 "Could not register asus_custom_fan_curve device\n");
2808 return PTR_ERR(hwmon);
2809 }
2810
2811 return 0;
2812}
2813
2814/* Throttle thermal policy ****************************************************/
2815
2816static int throttle_thermal_policy_check_present(struct asus_wmi *asus)
2817{
2818 u32 result;
2819 int err;
2820
2821 asus->throttle_thermal_policy_available = false;
2822
2823 err = asus_wmi_get_devstate(asus,
2824 ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY,
2825 &result);
2826 if (err) {
2827 if (err == -ENODEV)
2828 return 0;
2829 return err;
2830 }
2831
2832 if (result & ASUS_WMI_DSTS_PRESENCE_BIT)
2833 asus->throttle_thermal_policy_available = true;
2834
2835 return 0;
2836}
2837
2838static int throttle_thermal_policy_write(struct asus_wmi *asus)
2839{
2840 int err;
2841 u8 value;
2842 u32 retval;
2843
2844 value = asus->throttle_thermal_policy_mode;
2845
2846 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY,
2847 value, &retval);
2848
2849 sysfs_notify(&asus->platform_device->dev.kobj, NULL,
2850 "throttle_thermal_policy");
2851
2852 if (err) {
2853 pr_warn("Failed to set throttle thermal policy: %d\n", err);
2854 return err;
2855 }
2856
2857 if (retval != 1) {
2858 pr_warn("Failed to set throttle thermal policy (retval): 0x%x\n",
2859 retval);
2860 return -EIO;
2861 }
2862
2863 /* Must set to disabled if mode is toggled */
2864 if (asus->cpu_fan_curve_available)
2865 asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false;
2866 if (asus->gpu_fan_curve_available)
2867 asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false;
2868
2869 return 0;
2870}
2871
2872static int throttle_thermal_policy_set_default(struct asus_wmi *asus)
2873{
2874 if (!asus->throttle_thermal_policy_available)
2875 return 0;
2876
2877 asus->throttle_thermal_policy_mode = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
2878 return throttle_thermal_policy_write(asus);
2879}
2880
2881static int throttle_thermal_policy_switch_next(struct asus_wmi *asus)
2882{
2883 u8 new_mode = asus->throttle_thermal_policy_mode + 1;
2884 int err;
2885
2886 if (new_mode > ASUS_THROTTLE_THERMAL_POLICY_SILENT)
2887 new_mode = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
2888
2889 asus->throttle_thermal_policy_mode = new_mode;
2890 err = throttle_thermal_policy_write(asus);
2891 if (err)
2892 return err;
2893
2894 /*
2895 * Ensure that platform_profile updates userspace with the change to ensure
2896 * that platform_profile and throttle_thermal_policy_mode are in sync.
2897 */
2898 platform_profile_notify();
2899
2900 return 0;
2901}
2902
2903static ssize_t throttle_thermal_policy_show(struct device *dev,
2904 struct device_attribute *attr, char *buf)
2905{
2906 struct asus_wmi *asus = dev_get_drvdata(dev);
2907 u8 mode = asus->throttle_thermal_policy_mode;
2908
2909 return sysfs_emit(buf, "%d\n", mode);
2910}
2911
2912static ssize_t throttle_thermal_policy_store(struct device *dev,
2913 struct device_attribute *attr,
2914 const char *buf, size_t count)
2915{
2916 struct asus_wmi *asus = dev_get_drvdata(dev);
2917 u8 new_mode;
2918 int result;
2919 int err;
2920
2921 result = kstrtou8(buf, 10, &new_mode);
2922 if (result < 0)
2923 return result;
2924
2925 if (new_mode > ASUS_THROTTLE_THERMAL_POLICY_SILENT)
2926 return -EINVAL;
2927
2928 asus->throttle_thermal_policy_mode = new_mode;
2929 err = throttle_thermal_policy_write(asus);
2930 if (err)
2931 return err;
2932
2933 /*
2934 * Ensure that platform_profile updates userspace with the change to ensure
2935 * that platform_profile and throttle_thermal_policy_mode are in sync.
2936 */
2937 platform_profile_notify();
2938
2939 return count;
2940}
2941
2942// Throttle thermal policy: 0 - default, 1 - overboost, 2 - silent
2943static DEVICE_ATTR_RW(throttle_thermal_policy);
2944
2945/* Platform profile ***********************************************************/
2946static int asus_wmi_platform_profile_get(struct platform_profile_handler *pprof,
2947 enum platform_profile_option *profile)
2948{
2949 struct asus_wmi *asus;
2950 int tp;
2951
2952 asus = container_of(pprof, struct asus_wmi, platform_profile_handler);
2953
2954 tp = asus->throttle_thermal_policy_mode;
2955
2956 switch (tp) {
2957 case ASUS_THROTTLE_THERMAL_POLICY_DEFAULT:
2958 *profile = PLATFORM_PROFILE_BALANCED;
2959 break;
2960 case ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST:
2961 *profile = PLATFORM_PROFILE_PERFORMANCE;
2962 break;
2963 case ASUS_THROTTLE_THERMAL_POLICY_SILENT:
2964 *profile = PLATFORM_PROFILE_QUIET;
2965 break;
2966 default:
2967 return -EINVAL;
2968 }
2969
2970 return 0;
2971}
2972
2973static int asus_wmi_platform_profile_set(struct platform_profile_handler *pprof,
2974 enum platform_profile_option profile)
2975{
2976 struct asus_wmi *asus;
2977 int tp;
2978
2979 asus = container_of(pprof, struct asus_wmi, platform_profile_handler);
2980
2981 switch (profile) {
2982 case PLATFORM_PROFILE_PERFORMANCE:
2983 tp = ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST;
2984 break;
2985 case PLATFORM_PROFILE_BALANCED:
2986 tp = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
2987 break;
2988 case PLATFORM_PROFILE_QUIET:
2989 tp = ASUS_THROTTLE_THERMAL_POLICY_SILENT;
2990 break;
2991 default:
2992 return -EOPNOTSUPP;
2993 }
2994
2995 asus->throttle_thermal_policy_mode = tp;
2996 return throttle_thermal_policy_write(asus);
2997}
2998
2999static int platform_profile_setup(struct asus_wmi *asus)
3000{
3001 struct device *dev = &asus->platform_device->dev;
3002 int err;
3003
3004 /*
3005 * Not an error if a component platform_profile relies on is unavailable
3006 * so early return, skipping the setup of platform_profile.
3007 */
3008 if (!asus->throttle_thermal_policy_available)
3009 return 0;
3010
3011 dev_info(dev, "Using throttle_thermal_policy for platform_profile support\n");
3012
3013 asus->platform_profile_handler.profile_get = asus_wmi_platform_profile_get;
3014 asus->platform_profile_handler.profile_set = asus_wmi_platform_profile_set;
3015
3016 set_bit(PLATFORM_PROFILE_QUIET, asus->platform_profile_handler.choices);
3017 set_bit(PLATFORM_PROFILE_BALANCED,
3018 asus->platform_profile_handler.choices);
3019 set_bit(PLATFORM_PROFILE_PERFORMANCE,
3020 asus->platform_profile_handler.choices);
3021
3022 err = platform_profile_register(&asus->platform_profile_handler);
3023 if (err)
3024 return err;
3025
3026 asus->platform_profile_support = true;
3027 return 0;
3028}
3029
3030/* Backlight ******************************************************************/
3031
3032static int read_backlight_power(struct asus_wmi *asus)
3033{
3034 int ret;
3035
3036 if (asus->driver->quirks->store_backlight_power)
3037 ret = !asus->driver->panel_power;
3038 else
3039 ret = asus_wmi_get_devstate_simple(asus,
3040 ASUS_WMI_DEVID_BACKLIGHT);
3041
3042 if (ret < 0)
3043 return ret;
3044
3045 return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
3046}
3047
3048static int read_brightness_max(struct asus_wmi *asus)
3049{
3050 u32 retval;
3051 int err;
3052
3053 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
3054 if (err < 0)
3055 return err;
3056
3057 retval = retval & ASUS_WMI_DSTS_MAX_BRIGTH_MASK;
3058 retval >>= 8;
3059
3060 if (!retval)
3061 return -ENODEV;
3062
3063 return retval;
3064}
3065
3066static int read_brightness(struct backlight_device *bd)
3067{
3068 struct asus_wmi *asus = bl_get_data(bd);
3069 u32 retval;
3070 int err;
3071
3072 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
3073 if (err < 0)
3074 return err;
3075
3076 return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
3077}
3078
3079static u32 get_scalar_command(struct backlight_device *bd)
3080{
3081 struct asus_wmi *asus = bl_get_data(bd);
3082 u32 ctrl_param = 0;
3083
3084 if ((asus->driver->brightness < bd->props.brightness) ||
3085 bd->props.brightness == bd->props.max_brightness)
3086 ctrl_param = 0x00008001;
3087 else if ((asus->driver->brightness > bd->props.brightness) ||
3088 bd->props.brightness == 0)
3089 ctrl_param = 0x00008000;
3090
3091 asus->driver->brightness = bd->props.brightness;
3092
3093 return ctrl_param;
3094}
3095
3096static int update_bl_status(struct backlight_device *bd)
3097{
3098 struct asus_wmi *asus = bl_get_data(bd);
3099 u32 ctrl_param;
3100 int power, err = 0;
3101
3102 power = read_backlight_power(asus);
3103 if (power != -ENODEV && bd->props.power != power) {
3104 ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK);
3105 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT,
3106 ctrl_param, NULL);
3107 if (asus->driver->quirks->store_backlight_power)
3108 asus->driver->panel_power = bd->props.power;
3109
3110 /* When using scalar brightness, updating the brightness
3111 * will mess with the backlight power */
3112 if (asus->driver->quirks->scalar_panel_brightness)
3113 return err;
3114 }
3115
3116 if (asus->driver->quirks->scalar_panel_brightness)
3117 ctrl_param = get_scalar_command(bd);
3118 else
3119 ctrl_param = bd->props.brightness;
3120
3121 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS,
3122 ctrl_param, NULL);
3123
3124 return err;
3125}
3126
3127static const struct backlight_ops asus_wmi_bl_ops = {
3128 .get_brightness = read_brightness,
3129 .update_status = update_bl_status,
3130};
3131
3132static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code)
3133{
3134 struct backlight_device *bd = asus->backlight_device;
3135 int old = bd->props.brightness;
3136 int new = old;
3137
3138 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
3139 new = code - NOTIFY_BRNUP_MIN + 1;
3140 else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
3141 new = code - NOTIFY_BRNDOWN_MIN;
3142
3143 bd->props.brightness = new;
3144 backlight_update_status(bd);
3145 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
3146
3147 return old;
3148}
3149
3150static int asus_wmi_backlight_init(struct asus_wmi *asus)
3151{
3152 struct backlight_device *bd;
3153 struct backlight_properties props;
3154 int max;
3155 int power;
3156
3157 max = read_brightness_max(asus);
3158 if (max < 0)
3159 return max;
3160
3161 power = read_backlight_power(asus);
3162 if (power == -ENODEV)
3163 power = FB_BLANK_UNBLANK;
3164 else if (power < 0)
3165 return power;
3166
3167 memset(&props, 0, sizeof(struct backlight_properties));
3168 props.type = BACKLIGHT_PLATFORM;
3169 props.max_brightness = max;
3170 bd = backlight_device_register(asus->driver->name,
3171 &asus->platform_device->dev, asus,
3172 &asus_wmi_bl_ops, &props);
3173 if (IS_ERR(bd)) {
3174 pr_err("Could not register backlight device\n");
3175 return PTR_ERR(bd);
3176 }
3177
3178 asus->backlight_device = bd;
3179
3180 if (asus->driver->quirks->store_backlight_power)
3181 asus->driver->panel_power = power;
3182
3183 bd->props.brightness = read_brightness(bd);
3184 bd->props.power = power;
3185 backlight_update_status(bd);
3186
3187 asus->driver->brightness = bd->props.brightness;
3188
3189 return 0;
3190}
3191
3192static void asus_wmi_backlight_exit(struct asus_wmi *asus)
3193{
3194 backlight_device_unregister(asus->backlight_device);
3195
3196 asus->backlight_device = NULL;
3197}
3198
3199static int is_display_toggle(int code)
3200{
3201 /* display toggle keys */
3202 if ((code >= 0x61 && code <= 0x67) ||
3203 (code >= 0x8c && code <= 0x93) ||
3204 (code >= 0xa0 && code <= 0xa7) ||
3205 (code >= 0xd0 && code <= 0xd5))
3206 return 1;
3207
3208 return 0;
3209}
3210
3211/* Fn-lock ********************************************************************/
3212
3213static bool asus_wmi_has_fnlock_key(struct asus_wmi *asus)
3214{
3215 u32 result;
3216
3217 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FNLOCK, &result);
3218
3219 return (result & ASUS_WMI_DSTS_PRESENCE_BIT) &&
3220 !(result & ASUS_WMI_FNLOCK_BIOS_DISABLED);
3221}
3222
3223static void asus_wmi_fnlock_update(struct asus_wmi *asus)
3224{
3225 int mode = asus->fnlock_locked;
3226
3227 asus_wmi_set_devstate(ASUS_WMI_DEVID_FNLOCK, mode, NULL);
3228}
3229
3230/* WMI events *****************************************************************/
3231
3232static int asus_wmi_get_event_code(u32 value)
3233{
3234 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
3235 union acpi_object *obj;
3236 acpi_status status;
3237 int code;
3238
3239 status = wmi_get_event_data(value, &response);
3240 if (ACPI_FAILURE(status)) {
3241 pr_warn("Failed to get WMI notify code: %s\n",
3242 acpi_format_exception(status));
3243 return -EIO;
3244 }
3245
3246 obj = (union acpi_object *)response.pointer;
3247
3248 if (obj && obj->type == ACPI_TYPE_INTEGER)
3249 code = (int)(obj->integer.value & WMI_EVENT_MASK);
3250 else
3251 code = -EIO;
3252
3253 kfree(obj);
3254 return code;
3255}
3256
3257static void asus_wmi_handle_event_code(int code, struct asus_wmi *asus)
3258{
3259 unsigned int key_value = 1;
3260 bool autorelease = 1;
3261 int orig_code = code;
3262
3263 if (asus->driver->key_filter) {
3264 asus->driver->key_filter(asus->driver, &code, &key_value,
3265 &autorelease);
3266 if (code == ASUS_WMI_KEY_IGNORE)
3267 return;
3268 }
3269
3270 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
3271 code = ASUS_WMI_BRN_UP;
3272 else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
3273 code = ASUS_WMI_BRN_DOWN;
3274
3275 if (code == ASUS_WMI_BRN_DOWN || code == ASUS_WMI_BRN_UP) {
3276 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
3277 asus_wmi_backlight_notify(asus, orig_code);
3278 return;
3279 }
3280 }
3281
3282 if (code == NOTIFY_KBD_BRTUP) {
3283 kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1);
3284 return;
3285 }
3286 if (code == NOTIFY_KBD_BRTDWN) {
3287 kbd_led_set_by_kbd(asus, asus->kbd_led_wk - 1);
3288 return;
3289 }
3290 if (code == NOTIFY_KBD_BRTTOGGLE) {
3291 if (asus->kbd_led_wk == asus->kbd_led.max_brightness)
3292 kbd_led_set_by_kbd(asus, 0);
3293 else
3294 kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1);
3295 return;
3296 }
3297
3298 if (code == NOTIFY_FNLOCK_TOGGLE) {
3299 asus->fnlock_locked = !asus->fnlock_locked;
3300 asus_wmi_fnlock_update(asus);
3301 return;
3302 }
3303
3304 if (code == asus->tablet_switch_event_code) {
3305 asus_wmi_tablet_mode_get_state(asus);
3306 return;
3307 }
3308
3309 if (code == NOTIFY_KBD_FBM || code == NOTIFY_KBD_TTP) {
3310 if (asus->fan_boost_mode_available)
3311 fan_boost_mode_switch_next(asus);
3312 if (asus->throttle_thermal_policy_available)
3313 throttle_thermal_policy_switch_next(asus);
3314 return;
3315
3316 }
3317
3318 if (is_display_toggle(code) && asus->driver->quirks->no_display_toggle)
3319 return;
3320
3321 if (!sparse_keymap_report_event(asus->inputdev, code,
3322 key_value, autorelease))
3323 pr_info("Unknown key code 0x%x\n", code);
3324}
3325
3326static void asus_wmi_notify(u32 value, void *context)
3327{
3328 struct asus_wmi *asus = context;
3329 int code;
3330 int i;
3331
3332 for (i = 0; i < WMI_EVENT_QUEUE_SIZE + 1; i++) {
3333 code = asus_wmi_get_event_code(value);
3334 if (code < 0) {
3335 pr_warn("Failed to get notify code: %d\n", code);
3336 return;
3337 }
3338
3339 if (code == WMI_EVENT_QUEUE_END || code == WMI_EVENT_MASK)
3340 return;
3341
3342 asus_wmi_handle_event_code(code, asus);
3343
3344 /*
3345 * Double check that queue is present:
3346 * ATK (with queue) uses 0xff, ASUSWMI (without) 0xd2.
3347 */
3348 if (!asus->wmi_event_queue || value != WMI_EVENT_VALUE_ATK)
3349 return;
3350 }
3351
3352 pr_warn("Failed to process event queue, last code: 0x%x\n", code);
3353}
3354
3355static int asus_wmi_notify_queue_flush(struct asus_wmi *asus)
3356{
3357 int code;
3358 int i;
3359
3360 for (i = 0; i < WMI_EVENT_QUEUE_SIZE + 1; i++) {
3361 code = asus_wmi_get_event_code(WMI_EVENT_VALUE_ATK);
3362 if (code < 0) {
3363 pr_warn("Failed to get event during flush: %d\n", code);
3364 return code;
3365 }
3366
3367 if (code == WMI_EVENT_QUEUE_END || code == WMI_EVENT_MASK)
3368 return 0;
3369 }
3370
3371 pr_warn("Failed to flush event queue\n");
3372 return -EIO;
3373}
3374
3375/* Sysfs **********************************************************************/
3376
3377static ssize_t store_sys_wmi(struct asus_wmi *asus, int devid,
3378 const char *buf, size_t count)
3379{
3380 u32 retval;
3381 int err, value;
3382
3383 value = asus_wmi_get_devstate_simple(asus, devid);
3384 if (value < 0)
3385 return value;
3386
3387 err = kstrtoint(buf, 0, &value);
3388 if (err)
3389 return err;
3390
3391 err = asus_wmi_set_devstate(devid, value, &retval);
3392 if (err < 0)
3393 return err;
3394
3395 return count;
3396}
3397
3398static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
3399{
3400 int value = asus_wmi_get_devstate_simple(asus, devid);
3401
3402 if (value < 0)
3403 return value;
3404
3405 return sprintf(buf, "%d\n", value);
3406}
3407
3408#define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \
3409 static ssize_t show_##_name(struct device *dev, \
3410 struct device_attribute *attr, \
3411 char *buf) \
3412 { \
3413 struct asus_wmi *asus = dev_get_drvdata(dev); \
3414 \
3415 return show_sys_wmi(asus, _cm, buf); \
3416 } \
3417 static ssize_t store_##_name(struct device *dev, \
3418 struct device_attribute *attr, \
3419 const char *buf, size_t count) \
3420 { \
3421 struct asus_wmi *asus = dev_get_drvdata(dev); \
3422 \
3423 return store_sys_wmi(asus, _cm, buf, count); \
3424 } \
3425 static struct device_attribute dev_attr_##_name = { \
3426 .attr = { \
3427 .name = __stringify(_name), \
3428 .mode = _mode }, \
3429 .show = show_##_name, \
3430 .store = store_##_name, \
3431 }
3432
3433ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD);
3434ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA);
3435ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
3436ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume, 0644, ASUS_WMI_DEVID_LID_RESUME);
3437ASUS_WMI_CREATE_DEVICE_ATTR(als_enable, 0644, ASUS_WMI_DEVID_ALS_ENABLE);
3438
3439static ssize_t cpufv_store(struct device *dev, struct device_attribute *attr,
3440 const char *buf, size_t count)
3441{
3442 int value, rv;
3443
3444 rv = kstrtoint(buf, 0, &value);
3445 if (rv)
3446 return rv;
3447
3448 if (value < 0 || value > 2)
3449 return -EINVAL;
3450
3451 rv = asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL);
3452 if (rv < 0)
3453 return rv;
3454
3455 return count;
3456}
3457
3458static DEVICE_ATTR_WO(cpufv);
3459
3460static struct attribute *platform_attributes[] = {
3461 &dev_attr_cpufv.attr,
3462 &dev_attr_camera.attr,
3463 &dev_attr_cardr.attr,
3464 &dev_attr_touchpad.attr,
3465 &dev_attr_egpu_enable.attr,
3466 &dev_attr_dgpu_disable.attr,
3467 &dev_attr_gpu_mux_mode.attr,
3468 &dev_attr_lid_resume.attr,
3469 &dev_attr_als_enable.attr,
3470 &dev_attr_fan_boost_mode.attr,
3471 &dev_attr_throttle_thermal_policy.attr,
3472 &dev_attr_panel_od.attr,
3473 NULL
3474};
3475
3476static umode_t asus_sysfs_is_visible(struct kobject *kobj,
3477 struct attribute *attr, int idx)
3478{
3479 struct device *dev = kobj_to_dev(kobj);
3480 struct asus_wmi *asus = dev_get_drvdata(dev);
3481 bool ok = true;
3482 int devid = -1;
3483
3484 if (attr == &dev_attr_camera.attr)
3485 devid = ASUS_WMI_DEVID_CAMERA;
3486 else if (attr == &dev_attr_cardr.attr)
3487 devid = ASUS_WMI_DEVID_CARDREADER;
3488 else if (attr == &dev_attr_touchpad.attr)
3489 devid = ASUS_WMI_DEVID_TOUCHPAD;
3490 else if (attr == &dev_attr_lid_resume.attr)
3491 devid = ASUS_WMI_DEVID_LID_RESUME;
3492 else if (attr == &dev_attr_als_enable.attr)
3493 devid = ASUS_WMI_DEVID_ALS_ENABLE;
3494 else if (attr == &dev_attr_egpu_enable.attr)
3495 ok = asus->egpu_enable_available;
3496 else if (attr == &dev_attr_dgpu_disable.attr)
3497 ok = asus->dgpu_disable_available;
3498 else if (attr == &dev_attr_gpu_mux_mode.attr)
3499 ok = asus->gpu_mux_mode_available;
3500 else if (attr == &dev_attr_fan_boost_mode.attr)
3501 ok = asus->fan_boost_mode_available;
3502 else if (attr == &dev_attr_throttle_thermal_policy.attr)
3503 ok = asus->throttle_thermal_policy_available;
3504 else if (attr == &dev_attr_panel_od.attr)
3505 ok = asus->panel_overdrive_available;
3506
3507 if (devid != -1)
3508 ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
3509
3510 return ok ? attr->mode : 0;
3511}
3512
3513static const struct attribute_group platform_attribute_group = {
3514 .is_visible = asus_sysfs_is_visible,
3515 .attrs = platform_attributes
3516};
3517
3518static void asus_wmi_sysfs_exit(struct platform_device *device)
3519{
3520 sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
3521}
3522
3523static int asus_wmi_sysfs_init(struct platform_device *device)
3524{
3525 return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
3526}
3527
3528/* Platform device ************************************************************/
3529
3530static int asus_wmi_platform_init(struct asus_wmi *asus)
3531{
3532 struct device *dev = &asus->platform_device->dev;
3533 char *wmi_uid;
3534 int rv;
3535
3536 /* INIT enable hotkeys on some models */
3537 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv))
3538 pr_info("Initialization: %#x\n", rv);
3539
3540 /* We don't know yet what to do with this version... */
3541 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) {
3542 pr_info("BIOS WMI version: %d.%d\n", rv >> 16, rv & 0xFF);
3543 asus->spec = rv;
3544 }
3545
3546 /*
3547 * The SFUN method probably allows the original driver to get the list
3548 * of features supported by a given model. For now, 0x0100 or 0x0800
3549 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
3550 * The significance of others is yet to be found.
3551 */
3552 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) {
3553 pr_info("SFUN value: %#x\n", rv);
3554 asus->sfun = rv;
3555 }
3556
3557 /*
3558 * Eee PC and Notebooks seems to have different method_id for DSTS,
3559 * but it may also be related to the BIOS's SPEC.
3560 * Note, on most Eeepc, there is no way to check if a method exist
3561 * or note, while on notebooks, they returns 0xFFFFFFFE on failure,
3562 * but once again, SPEC may probably be used for that kind of things.
3563 *
3564 * Additionally at least TUF Gaming series laptops return nothing for
3565 * unknown methods, so the detection in this way is not possible.
3566 *
3567 * There is strong indication that only ACPI WMI devices that have _UID
3568 * equal to "ASUSWMI" use DCTS whereas those with "ATK" use DSTS.
3569 */
3570 wmi_uid = wmi_get_acpi_device_uid(ASUS_WMI_MGMT_GUID);
3571 if (!wmi_uid)
3572 return -ENODEV;
3573
3574 if (!strcmp(wmi_uid, ASUS_ACPI_UID_ASUSWMI)) {
3575 dev_info(dev, "Detected ASUSWMI, use DCTS\n");
3576 asus->dsts_id = ASUS_WMI_METHODID_DCTS;
3577 } else {
3578 dev_info(dev, "Detected %s, not ASUSWMI, use DSTS\n", wmi_uid);
3579 asus->dsts_id = ASUS_WMI_METHODID_DSTS;
3580 }
3581
3582 /*
3583 * Some devices can have multiple event codes stored in a queue before
3584 * the module load if it was unloaded intermittently after calling
3585 * the INIT method (enables event handling). The WMI notify handler is
3586 * expected to retrieve all event codes until a retrieved code equals
3587 * queue end marker (One or Ones). Old codes are flushed from the queue
3588 * upon module load. Not enabling this when it should be has minimal
3589 * visible impact so fall back if anything goes wrong.
3590 */
3591 wmi_uid = wmi_get_acpi_device_uid(asus->driver->event_guid);
3592 if (wmi_uid && !strcmp(wmi_uid, ASUS_ACPI_UID_ATK)) {
3593 dev_info(dev, "Detected ATK, enable event queue\n");
3594
3595 if (!asus_wmi_notify_queue_flush(asus))
3596 asus->wmi_event_queue = true;
3597 }
3598
3599 /* CWAP allow to define the behavior of the Fn+F2 key,
3600 * this method doesn't seems to be present on Eee PCs */
3601 if (asus->driver->quirks->wapf >= 0)
3602 asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP,
3603 asus->driver->quirks->wapf, NULL);
3604
3605 return 0;
3606}
3607
3608/* debugfs ********************************************************************/
3609
3610struct asus_wmi_debugfs_node {
3611 struct asus_wmi *asus;
3612 char *name;
3613 int (*show) (struct seq_file *m, void *data);
3614};
3615
3616static int show_dsts(struct seq_file *m, void *data)
3617{
3618 struct asus_wmi *asus = m->private;
3619 int err;
3620 u32 retval = -1;
3621
3622 err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
3623 if (err < 0)
3624 return err;
3625
3626 seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval);
3627
3628 return 0;
3629}
3630
3631static int show_devs(struct seq_file *m, void *data)
3632{
3633 struct asus_wmi *asus = m->private;
3634 int err;
3635 u32 retval = -1;
3636
3637 err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
3638 &retval);
3639 if (err < 0)
3640 return err;
3641
3642 seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id,
3643 asus->debug.ctrl_param, retval);
3644
3645 return 0;
3646}
3647
3648static int show_call(struct seq_file *m, void *data)
3649{
3650 struct asus_wmi *asus = m->private;
3651 struct bios_args args = {
3652 .arg0 = asus->debug.dev_id,
3653 .arg1 = asus->debug.ctrl_param,
3654 };
3655 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
3656 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
3657 union acpi_object *obj;
3658 acpi_status status;
3659
3660 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
3661 0, asus->debug.method_id,
3662 &input, &output);
3663
3664 if (ACPI_FAILURE(status))
3665 return -EIO;
3666
3667 obj = (union acpi_object *)output.pointer;
3668 if (obj && obj->type == ACPI_TYPE_INTEGER)
3669 seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id,
3670 asus->debug.dev_id, asus->debug.ctrl_param,
3671 (u32) obj->integer.value);
3672 else
3673 seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id,
3674 asus->debug.dev_id, asus->debug.ctrl_param,
3675 obj ? obj->type : -1);
3676
3677 kfree(obj);
3678
3679 return 0;
3680}
3681
3682static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = {
3683 {NULL, "devs", show_devs},
3684 {NULL, "dsts", show_dsts},
3685 {NULL, "call", show_call},
3686};
3687
3688static int asus_wmi_debugfs_open(struct inode *inode, struct file *file)
3689{
3690 struct asus_wmi_debugfs_node *node = inode->i_private;
3691
3692 return single_open(file, node->show, node->asus);
3693}
3694
3695static const struct file_operations asus_wmi_debugfs_io_ops = {
3696 .owner = THIS_MODULE,
3697 .open = asus_wmi_debugfs_open,
3698 .read = seq_read,
3699 .llseek = seq_lseek,
3700 .release = single_release,
3701};
3702
3703static void asus_wmi_debugfs_exit(struct asus_wmi *asus)
3704{
3705 debugfs_remove_recursive(asus->debug.root);
3706}
3707
3708static void asus_wmi_debugfs_init(struct asus_wmi *asus)
3709{
3710 int i;
3711
3712 asus->debug.root = debugfs_create_dir(asus->driver->name, NULL);
3713
3714 debugfs_create_x32("method_id", S_IRUGO | S_IWUSR, asus->debug.root,
3715 &asus->debug.method_id);
3716
3717 debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR, asus->debug.root,
3718 &asus->debug.dev_id);
3719
3720 debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR, asus->debug.root,
3721 &asus->debug.ctrl_param);
3722
3723 for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) {
3724 struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i];
3725
3726 node->asus = asus;
3727 debugfs_create_file(node->name, S_IFREG | S_IRUGO,
3728 asus->debug.root, node,
3729 &asus_wmi_debugfs_io_ops);
3730 }
3731}
3732
3733/* Init / exit ****************************************************************/
3734
3735static int asus_wmi_add(struct platform_device *pdev)
3736{
3737 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
3738 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
3739 struct asus_wmi *asus;
3740 acpi_status status;
3741 int err;
3742 u32 result;
3743
3744 asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL);
3745 if (!asus)
3746 return -ENOMEM;
3747
3748 asus->driver = wdrv;
3749 asus->platform_device = pdev;
3750 wdrv->platform_device = pdev;
3751 platform_set_drvdata(asus->platform_device, asus);
3752
3753 if (wdrv->detect_quirks)
3754 wdrv->detect_quirks(asus->driver);
3755
3756 err = asus_wmi_platform_init(asus);
3757 if (err)
3758 goto fail_platform;
3759
3760 asus->egpu_enable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU);
3761 asus->dgpu_disable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_DGPU);
3762 asus->gpu_mux_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX);
3763 asus->kbd_rgb_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE);
3764 asus->kbd_rgb_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_STATE);
3765 asus->panel_overdrive_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PANEL_OD);
3766
3767 err = fan_boost_mode_check_present(asus);
3768 if (err)
3769 goto fail_fan_boost_mode;
3770
3771 err = throttle_thermal_policy_check_present(asus);
3772 if (err)
3773 goto fail_throttle_thermal_policy;
3774 else
3775 throttle_thermal_policy_set_default(asus);
3776
3777 err = platform_profile_setup(asus);
3778 if (err)
3779 goto fail_platform_profile_setup;
3780
3781 err = asus_wmi_sysfs_init(asus->platform_device);
3782 if (err)
3783 goto fail_sysfs;
3784
3785 err = asus_wmi_input_init(asus);
3786 if (err)
3787 goto fail_input;
3788
3789 err = asus_wmi_fan_init(asus); /* probably no problems on error */
3790
3791 err = asus_wmi_hwmon_init(asus);
3792 if (err)
3793 goto fail_hwmon;
3794
3795 err = asus_wmi_custom_fan_curve_init(asus);
3796 if (err)
3797 goto fail_custom_fan_curve;
3798
3799 err = asus_wmi_led_init(asus);
3800 if (err)
3801 goto fail_leds;
3802
3803 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result);
3804 if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT))
3805 asus->driver->wlan_ctrl_by_user = 1;
3806
3807 if (!(asus->driver->wlan_ctrl_by_user && ashs_present())) {
3808 err = asus_wmi_rfkill_init(asus);
3809 if (err)
3810 goto fail_rfkill;
3811 }
3812
3813 if (asus->driver->quirks->wmi_force_als_set)
3814 asus_wmi_set_als();
3815
3816 if (asus->driver->quirks->xusb2pr)
3817 asus_wmi_set_xusb2pr(asus);
3818
3819 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
3820 err = asus_wmi_backlight_init(asus);
3821 if (err && err != -ENODEV)
3822 goto fail_backlight;
3823 } else if (asus->driver->quirks->wmi_backlight_set_devstate)
3824 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL);
3825
3826 if (asus_wmi_has_fnlock_key(asus)) {
3827 asus->fnlock_locked = fnlock_default;
3828 asus_wmi_fnlock_update(asus);
3829 }
3830
3831 status = wmi_install_notify_handler(asus->driver->event_guid,
3832 asus_wmi_notify, asus);
3833 if (ACPI_FAILURE(status)) {
3834 pr_err("Unable to register notify handler - %d\n", status);
3835 err = -ENODEV;
3836 goto fail_wmi_handler;
3837 }
3838
3839 asus_wmi_battery_init(asus);
3840
3841 asus_wmi_debugfs_init(asus);
3842
3843 return 0;
3844
3845fail_wmi_handler:
3846 asus_wmi_backlight_exit(asus);
3847fail_backlight:
3848 asus_wmi_rfkill_exit(asus);
3849fail_rfkill:
3850 asus_wmi_led_exit(asus);
3851fail_leds:
3852fail_hwmon:
3853 asus_wmi_input_exit(asus);
3854fail_input:
3855 asus_wmi_sysfs_exit(asus->platform_device);
3856fail_sysfs:
3857fail_throttle_thermal_policy:
3858fail_custom_fan_curve:
3859fail_platform_profile_setup:
3860 if (asus->platform_profile_support)
3861 platform_profile_remove();
3862fail_fan_boost_mode:
3863fail_platform:
3864 kfree(asus);
3865 return err;
3866}
3867
3868static int asus_wmi_remove(struct platform_device *device)
3869{
3870 struct asus_wmi *asus;
3871
3872 asus = platform_get_drvdata(device);
3873 wmi_remove_notify_handler(asus->driver->event_guid);
3874 asus_wmi_backlight_exit(asus);
3875 asus_wmi_input_exit(asus);
3876 asus_wmi_led_exit(asus);
3877 asus_wmi_rfkill_exit(asus);
3878 asus_wmi_debugfs_exit(asus);
3879 asus_wmi_sysfs_exit(asus->platform_device);
3880 asus_fan_set_auto(asus);
3881 throttle_thermal_policy_set_default(asus);
3882 asus_wmi_battery_exit(asus);
3883
3884 if (asus->platform_profile_support)
3885 platform_profile_remove();
3886
3887 kfree(asus);
3888 return 0;
3889}
3890
3891/* Platform driver - hibernate/resume callbacks *******************************/
3892
3893static int asus_hotk_thaw(struct device *device)
3894{
3895 struct asus_wmi *asus = dev_get_drvdata(device);
3896
3897 if (asus->wlan.rfkill) {
3898 bool wlan;
3899
3900 /*
3901 * Work around bios bug - acpi _PTS turns off the wireless led
3902 * during suspend. Normally it restores it on resume, but
3903 * we should kick it ourselves in case hibernation is aborted.
3904 */
3905 wlan = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
3906 asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL);
3907 }
3908
3909 return 0;
3910}
3911
3912static int asus_hotk_resume(struct device *device)
3913{
3914 struct asus_wmi *asus = dev_get_drvdata(device);
3915
3916 if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
3917 kbd_led_update(asus);
3918
3919 if (asus_wmi_has_fnlock_key(asus))
3920 asus_wmi_fnlock_update(asus);
3921
3922 asus_wmi_tablet_mode_get_state(asus);
3923 return 0;
3924}
3925
3926static int asus_hotk_restore(struct device *device)
3927{
3928 struct asus_wmi *asus = dev_get_drvdata(device);
3929 int bl;
3930
3931 /* Refresh both wlan rfkill state and pci hotplug */
3932 if (asus->wlan.rfkill)
3933 asus_rfkill_hotplug(asus);
3934
3935 if (asus->bluetooth.rfkill) {
3936 bl = !asus_wmi_get_devstate_simple(asus,
3937 ASUS_WMI_DEVID_BLUETOOTH);
3938 rfkill_set_sw_state(asus->bluetooth.rfkill, bl);
3939 }
3940 if (asus->wimax.rfkill) {
3941 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WIMAX);
3942 rfkill_set_sw_state(asus->wimax.rfkill, bl);
3943 }
3944 if (asus->wwan3g.rfkill) {
3945 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WWAN3G);
3946 rfkill_set_sw_state(asus->wwan3g.rfkill, bl);
3947 }
3948 if (asus->gps.rfkill) {
3949 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPS);
3950 rfkill_set_sw_state(asus->gps.rfkill, bl);
3951 }
3952 if (asus->uwb.rfkill) {
3953 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_UWB);
3954 rfkill_set_sw_state(asus->uwb.rfkill, bl);
3955 }
3956 if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
3957 kbd_led_update(asus);
3958
3959 if (asus_wmi_has_fnlock_key(asus))
3960 asus_wmi_fnlock_update(asus);
3961
3962 asus_wmi_tablet_mode_get_state(asus);
3963 return 0;
3964}
3965
3966static const struct dev_pm_ops asus_pm_ops = {
3967 .thaw = asus_hotk_thaw,
3968 .restore = asus_hotk_restore,
3969 .resume = asus_hotk_resume,
3970};
3971
3972/* Registration ***************************************************************/
3973
3974static int asus_wmi_probe(struct platform_device *pdev)
3975{
3976 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
3977 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
3978 int ret;
3979
3980 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
3981 pr_warn("ASUS Management GUID not found\n");
3982 return -ENODEV;
3983 }
3984
3985 if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) {
3986 pr_warn("ASUS Event GUID not found\n");
3987 return -ENODEV;
3988 }
3989
3990 if (wdrv->probe) {
3991 ret = wdrv->probe(pdev);
3992 if (ret)
3993 return ret;
3994 }
3995
3996 return asus_wmi_add(pdev);
3997}
3998
3999static bool used;
4000
4001int __init_or_module asus_wmi_register_driver(struct asus_wmi_driver *driver)
4002{
4003 struct platform_driver *platform_driver;
4004 struct platform_device *platform_device;
4005
4006 if (used)
4007 return -EBUSY;
4008
4009 platform_driver = &driver->platform_driver;
4010 platform_driver->remove = asus_wmi_remove;
4011 platform_driver->driver.owner = driver->owner;
4012 platform_driver->driver.name = driver->name;
4013 platform_driver->driver.pm = &asus_pm_ops;
4014
4015 platform_device = platform_create_bundle(platform_driver,
4016 asus_wmi_probe,
4017 NULL, 0, NULL, 0);
4018 if (IS_ERR(platform_device))
4019 return PTR_ERR(platform_device);
4020
4021 used = true;
4022 return 0;
4023}
4024EXPORT_SYMBOL_GPL(asus_wmi_register_driver);
4025
4026void asus_wmi_unregister_driver(struct asus_wmi_driver *driver)
4027{
4028 platform_device_unregister(driver->platform_device);
4029 platform_driver_unregister(&driver->platform_driver);
4030 used = false;
4031}
4032EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver);
4033
4034static int __init asus_wmi_init(void)
4035{
4036 pr_info("ASUS WMI generic driver loaded\n");
4037 return 0;
4038}
4039
4040static void __exit asus_wmi_exit(void)
4041{
4042 pr_info("ASUS WMI generic driver unloaded\n");
4043}
4044
4045module_init(asus_wmi_init);
4046module_exit(asus_wmi_exit);
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Asus PC WMI hotkey driver
4 *
5 * Copyright(C) 2010 Intel Corporation.
6 * Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com>
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/acpi.h>
17#include <linux/backlight.h>
18#include <linux/debugfs.h>
19#include <linux/delay.h>
20#include <linux/dmi.h>
21#include <linux/hwmon.h>
22#include <linux/hwmon-sysfs.h>
23#include <linux/init.h>
24#include <linux/input.h>
25#include <linux/input/sparse-keymap.h>
26#include <linux/kernel.h>
27#include <linux/leds.h>
28#include <linux/minmax.h>
29#include <linux/module.h>
30#include <linux/pci.h>
31#include <linux/pci_hotplug.h>
32#include <linux/platform_data/x86/asus-wmi.h>
33#include <linux/platform_device.h>
34#include <linux/platform_profile.h>
35#include <linux/power_supply.h>
36#include <linux/rfkill.h>
37#include <linux/seq_file.h>
38#include <linux/slab.h>
39#include <linux/types.h>
40#include <linux/units.h>
41
42#include <acpi/battery.h>
43#include <acpi/video.h>
44
45#include "asus-wmi.h"
46
47MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>");
48MODULE_AUTHOR("Yong Wang <yong.y.wang@intel.com>");
49MODULE_DESCRIPTION("Asus Generic WMI Driver");
50MODULE_LICENSE("GPL");
51
52static bool fnlock_default = true;
53module_param(fnlock_default, bool, 0444);
54
55#define to_asus_wmi_driver(pdrv) \
56 (container_of((pdrv), struct asus_wmi_driver, platform_driver))
57
58#define ASUS_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66"
59
60#define NOTIFY_BRNUP_MIN 0x11
61#define NOTIFY_BRNUP_MAX 0x1f
62#define NOTIFY_BRNDOWN_MIN 0x20
63#define NOTIFY_BRNDOWN_MAX 0x2e
64#define NOTIFY_FNLOCK_TOGGLE 0x4e
65#define NOTIFY_KBD_DOCK_CHANGE 0x75
66#define NOTIFY_KBD_BRTUP 0xc4
67#define NOTIFY_KBD_BRTDWN 0xc5
68#define NOTIFY_KBD_BRTTOGGLE 0xc7
69#define NOTIFY_KBD_FBM 0x99
70#define NOTIFY_KBD_TTP 0xae
71#define NOTIFY_LID_FLIP 0xfa
72#define NOTIFY_LID_FLIP_ROG 0xbd
73
74#define ASUS_WMI_FNLOCK_BIOS_DISABLED BIT(0)
75
76#define ASUS_MID_FAN_DESC "mid_fan"
77#define ASUS_GPU_FAN_DESC "gpu_fan"
78#define ASUS_FAN_DESC "cpu_fan"
79#define ASUS_FAN_MFUN 0x13
80#define ASUS_FAN_SFUN_READ 0x06
81#define ASUS_FAN_SFUN_WRITE 0x07
82
83/* Based on standard hwmon pwmX_enable values */
84#define ASUS_FAN_CTRL_FULLSPEED 0
85#define ASUS_FAN_CTRL_MANUAL 1
86#define ASUS_FAN_CTRL_AUTO 2
87
88#define ASUS_FAN_BOOST_MODE_NORMAL 0
89#define ASUS_FAN_BOOST_MODE_OVERBOOST 1
90#define ASUS_FAN_BOOST_MODE_OVERBOOST_MASK 0x01
91#define ASUS_FAN_BOOST_MODE_SILENT 2
92#define ASUS_FAN_BOOST_MODE_SILENT_MASK 0x02
93#define ASUS_FAN_BOOST_MODES_MASK 0x03
94
95#define ASUS_THROTTLE_THERMAL_POLICY_DEFAULT 0
96#define ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST 1
97#define ASUS_THROTTLE_THERMAL_POLICY_SILENT 2
98
99#define ASUS_THROTTLE_THERMAL_POLICY_DEFAULT_VIVO 0
100#define ASUS_THROTTLE_THERMAL_POLICY_SILENT_VIVO 1
101#define ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST_VIVO 2
102
103#define PLATFORM_PROFILE_MAX 2
104
105#define USB_INTEL_XUSB2PR 0xD0
106#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31
107
108#define ASUS_ACPI_UID_ASUSWMI "ASUSWMI"
109
110#define WMI_EVENT_MASK 0xFFFF
111
112#define FAN_CURVE_POINTS 8
113#define FAN_CURVE_BUF_LEN 32
114#define FAN_CURVE_DEV_CPU 0x00
115#define FAN_CURVE_DEV_GPU 0x01
116#define FAN_CURVE_DEV_MID 0x02
117/* Mask to determine if setting temperature or percentage */
118#define FAN_CURVE_PWM_MASK 0x04
119
120/* Limits for tunables available on ASUS ROG laptops */
121#define PPT_TOTAL_MIN 5
122#define PPT_TOTAL_MAX 250
123#define PPT_CPU_MIN 5
124#define PPT_CPU_MAX 130
125#define NVIDIA_BOOST_MIN 5
126#define NVIDIA_BOOST_MAX 25
127#define NVIDIA_TEMP_MIN 75
128#define NVIDIA_TEMP_MAX 87
129
130#define ASUS_SCREENPAD_BRIGHT_MIN 20
131#define ASUS_SCREENPAD_BRIGHT_MAX 255
132#define ASUS_SCREENPAD_BRIGHT_DEFAULT 60
133
134#define ASUS_MINI_LED_MODE_MASK 0x03
135/* Standard modes for devices with only on/off */
136#define ASUS_MINI_LED_OFF 0x00
137#define ASUS_MINI_LED_ON 0x01
138/* New mode on some devices, define here to clarify remapping later */
139#define ASUS_MINI_LED_STRONG_MODE 0x02
140/* New modes for devices with 3 mini-led mode types */
141#define ASUS_MINI_LED_2024_WEAK 0x00
142#define ASUS_MINI_LED_2024_STRONG 0x01
143#define ASUS_MINI_LED_2024_OFF 0x02
144
145/* Controls the power state of the USB0 hub on ROG Ally which input is on */
146#define ASUS_USB0_PWR_EC0_CSEE "\\_SB.PCI0.SBRG.EC0.CSEE"
147/* 300ms so far seems to produce a reliable result on AC and battery */
148#define ASUS_USB0_PWR_EC0_CSEE_WAIT 1500
149
150static const char * const ashs_ids[] = { "ATK4001", "ATK4002", NULL };
151
152static int throttle_thermal_policy_write(struct asus_wmi *);
153
154static const struct dmi_system_id asus_ally_mcu_quirk[] = {
155 {
156 .matches = {
157 DMI_MATCH(DMI_BOARD_NAME, "RC71L"),
158 },
159 },
160 {
161 .matches = {
162 DMI_MATCH(DMI_BOARD_NAME, "RC72L"),
163 },
164 },
165 { },
166};
167
168static bool ashs_present(void)
169{
170 int i = 0;
171 while (ashs_ids[i]) {
172 if (acpi_dev_found(ashs_ids[i++]))
173 return true;
174 }
175 return false;
176}
177
178struct bios_args {
179 u32 arg0;
180 u32 arg1;
181 u32 arg2; /* At least TUF Gaming series uses 3 dword input buffer. */
182 u32 arg3;
183 u32 arg4; /* Some ROG laptops require a full 5 input args */
184 u32 arg5;
185} __packed;
186
187/*
188 * Struct that's used for all methods called via AGFN. Naming is
189 * identically to the AML code.
190 */
191struct agfn_args {
192 u16 mfun; /* probably "Multi-function" to be called */
193 u16 sfun; /* probably "Sub-function" to be called */
194 u16 len; /* size of the hole struct, including subfunction fields */
195 u8 stas; /* not used by now */
196 u8 err; /* zero on success */
197} __packed;
198
199/* struct used for calling fan read and write methods */
200struct agfn_fan_args {
201 struct agfn_args agfn; /* common fields */
202 u8 fan; /* fan number: 0: set auto mode 1: 1st fan */
203 u32 speed; /* read: RPM/100 - write: 0-255 */
204} __packed;
205
206/*
207 * <platform>/ - debugfs root directory
208 * dev_id - current dev_id
209 * ctrl_param - current ctrl_param
210 * method_id - current method_id
211 * devs - call DEVS(dev_id, ctrl_param) and print result
212 * dsts - call DSTS(dev_id) and print result
213 * call - call method_id(dev_id, ctrl_param) and print result
214 */
215struct asus_wmi_debug {
216 struct dentry *root;
217 u32 method_id;
218 u32 dev_id;
219 u32 ctrl_param;
220};
221
222struct asus_rfkill {
223 struct asus_wmi *asus;
224 struct rfkill *rfkill;
225 u32 dev_id;
226};
227
228enum fan_type {
229 FAN_TYPE_NONE = 0,
230 FAN_TYPE_AGFN, /* deprecated on newer platforms */
231 FAN_TYPE_SPEC83, /* starting in Spec 8.3, use CPU_FAN_CTRL */
232};
233
234struct fan_curve_data {
235 bool enabled;
236 u32 device_id;
237 u8 temps[FAN_CURVE_POINTS];
238 u8 percents[FAN_CURVE_POINTS];
239};
240
241struct asus_wmi {
242 int dsts_id;
243 int spec;
244 int sfun;
245
246 struct input_dev *inputdev;
247 struct backlight_device *backlight_device;
248 struct backlight_device *screenpad_backlight_device;
249 struct platform_device *platform_device;
250
251 struct led_classdev wlan_led;
252 int wlan_led_wk;
253 struct led_classdev tpd_led;
254 int tpd_led_wk;
255 struct led_classdev kbd_led;
256 int kbd_led_wk;
257 struct led_classdev lightbar_led;
258 int lightbar_led_wk;
259 struct led_classdev micmute_led;
260 struct led_classdev camera_led;
261 struct workqueue_struct *led_workqueue;
262 struct work_struct tpd_led_work;
263 struct work_struct wlan_led_work;
264 struct work_struct lightbar_led_work;
265
266 struct asus_rfkill wlan;
267 struct asus_rfkill bluetooth;
268 struct asus_rfkill wimax;
269 struct asus_rfkill wwan3g;
270 struct asus_rfkill gps;
271 struct asus_rfkill uwb;
272
273 int tablet_switch_event_code;
274 u32 tablet_switch_dev_id;
275 bool tablet_switch_inverted;
276
277 /* The ROG Ally device requires the MCU USB device be disconnected before suspend */
278 bool ally_mcu_usb_switch;
279
280 enum fan_type fan_type;
281 enum fan_type gpu_fan_type;
282 enum fan_type mid_fan_type;
283 int fan_pwm_mode;
284 int gpu_fan_pwm_mode;
285 int mid_fan_pwm_mode;
286 int agfn_pwm;
287
288 bool fan_boost_mode_available;
289 u8 fan_boost_mode_mask;
290 u8 fan_boost_mode;
291
292 bool egpu_enable_available;
293 bool dgpu_disable_available;
294 u32 gpu_mux_dev;
295
296 /* Tunables provided by ASUS for gaming laptops */
297 u32 ppt_pl2_sppt;
298 u32 ppt_pl1_spl;
299 u32 ppt_apu_sppt;
300 u32 ppt_platform_sppt;
301 u32 ppt_fppt;
302 u32 nv_dynamic_boost;
303 u32 nv_temp_target;
304
305 u32 kbd_rgb_dev;
306 bool kbd_rgb_state_available;
307
308 u8 throttle_thermal_policy_mode;
309 u32 throttle_thermal_policy_dev;
310
311 bool cpu_fan_curve_available;
312 bool gpu_fan_curve_available;
313 bool mid_fan_curve_available;
314 struct fan_curve_data custom_fan_curves[3];
315
316 struct platform_profile_handler platform_profile_handler;
317 bool platform_profile_support;
318
319 // The RSOC controls the maximum charging percentage.
320 bool battery_rsoc_available;
321
322 bool panel_overdrive_available;
323 u32 mini_led_dev_id;
324
325 struct hotplug_slot hotplug_slot;
326 struct mutex hotplug_lock;
327 struct mutex wmi_lock;
328 struct workqueue_struct *hotplug_workqueue;
329 struct work_struct hotplug_work;
330
331 bool fnlock_locked;
332
333 struct asus_wmi_debug debug;
334
335 struct asus_wmi_driver *driver;
336};
337
338/* WMI ************************************************************************/
339
340static int asus_wmi_evaluate_method3(u32 method_id,
341 u32 arg0, u32 arg1, u32 arg2, u32 *retval)
342{
343 struct bios_args args = {
344 .arg0 = arg0,
345 .arg1 = arg1,
346 .arg2 = arg2,
347 };
348 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
349 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
350 acpi_status status;
351 union acpi_object *obj;
352 u32 tmp = 0;
353
354 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
355 &input, &output);
356
357 pr_debug("%s called (0x%08x) with args: 0x%08x, 0x%08x, 0x%08x\n",
358 __func__, method_id, arg0, arg1, arg2);
359 if (ACPI_FAILURE(status)) {
360 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n",
361 __func__, method_id, arg0, -EIO);
362 return -EIO;
363 }
364
365 obj = (union acpi_object *)output.pointer;
366 if (obj && obj->type == ACPI_TYPE_INTEGER)
367 tmp = (u32) obj->integer.value;
368
369 pr_debug("Result: 0x%08x\n", tmp);
370 if (retval)
371 *retval = tmp;
372
373 kfree(obj);
374
375 if (tmp == ASUS_WMI_UNSUPPORTED_METHOD) {
376 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n",
377 __func__, method_id, arg0, -ENODEV);
378 return -ENODEV;
379 }
380
381 return 0;
382}
383
384int asus_wmi_evaluate_method(u32 method_id, u32 arg0, u32 arg1, u32 *retval)
385{
386 return asus_wmi_evaluate_method3(method_id, arg0, arg1, 0, retval);
387}
388EXPORT_SYMBOL_GPL(asus_wmi_evaluate_method);
389
390static int asus_wmi_evaluate_method5(u32 method_id,
391 u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4, u32 *retval)
392{
393 struct bios_args args = {
394 .arg0 = arg0,
395 .arg1 = arg1,
396 .arg2 = arg2,
397 .arg3 = arg3,
398 .arg4 = arg4,
399 };
400 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
401 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
402 acpi_status status;
403 union acpi_object *obj;
404 u32 tmp = 0;
405
406 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
407 &input, &output);
408
409 pr_debug("%s called (0x%08x) with args: 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x\n",
410 __func__, method_id, arg0, arg1, arg2, arg3, arg4);
411 if (ACPI_FAILURE(status)) {
412 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n",
413 __func__, method_id, arg0, -EIO);
414 return -EIO;
415 }
416
417 obj = (union acpi_object *)output.pointer;
418 if (obj && obj->type == ACPI_TYPE_INTEGER)
419 tmp = (u32) obj->integer.value;
420
421 pr_debug("Result: %x\n", tmp);
422 if (retval)
423 *retval = tmp;
424
425 kfree(obj);
426
427 if (tmp == ASUS_WMI_UNSUPPORTED_METHOD) {
428 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n",
429 __func__, method_id, arg0, -ENODEV);
430 return -ENODEV;
431 }
432
433 return 0;
434}
435
436/*
437 * Returns as an error if the method output is not a buffer. Typically this
438 * means that the method called is unsupported.
439 */
440static int asus_wmi_evaluate_method_buf(u32 method_id,
441 u32 arg0, u32 arg1, u8 *ret_buffer, size_t size)
442{
443 struct bios_args args = {
444 .arg0 = arg0,
445 .arg1 = arg1,
446 .arg2 = 0,
447 };
448 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
449 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
450 acpi_status status;
451 union acpi_object *obj;
452 int err = 0;
453
454 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
455 &input, &output);
456
457 pr_debug("%s called (0x%08x) with args: 0x%08x, 0x%08x\n",
458 __func__, method_id, arg0, arg1);
459 if (ACPI_FAILURE(status)) {
460 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n",
461 __func__, method_id, arg0, -EIO);
462 return -EIO;
463 }
464
465 obj = (union acpi_object *)output.pointer;
466
467 switch (obj->type) {
468 case ACPI_TYPE_BUFFER:
469 if (obj->buffer.length > size) {
470 err = -ENOSPC;
471 break;
472 }
473 if (obj->buffer.length == 0) {
474 err = -ENODATA;
475 break;
476 }
477
478 memcpy(ret_buffer, obj->buffer.pointer, obj->buffer.length);
479 break;
480 case ACPI_TYPE_INTEGER:
481 err = (u32)obj->integer.value;
482
483 if (err == ASUS_WMI_UNSUPPORTED_METHOD)
484 err = -ENODEV;
485 /*
486 * At least one method returns a 0 with no buffer if no arg
487 * is provided, such as ASUS_WMI_DEVID_CPU_FAN_CURVE
488 */
489 if (err == 0)
490 err = -ENODATA;
491 break;
492 default:
493 err = -ENODATA;
494 break;
495 }
496
497 kfree(obj);
498
499 if (err) {
500 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n",
501 __func__, method_id, arg0, err);
502 return err;
503 }
504
505 return 0;
506}
507
508static int asus_wmi_evaluate_method_agfn(const struct acpi_buffer args)
509{
510 struct acpi_buffer input;
511 u64 phys_addr;
512 u32 retval;
513 u32 status;
514
515 /*
516 * Copy to dma capable address otherwise memory corruption occurs as
517 * bios has to be able to access it.
518 */
519 input.pointer = kmemdup(args.pointer, args.length, GFP_DMA | GFP_KERNEL);
520 input.length = args.length;
521 if (!input.pointer)
522 return -ENOMEM;
523 phys_addr = virt_to_phys(input.pointer);
524
525 status = asus_wmi_evaluate_method(ASUS_WMI_METHODID_AGFN,
526 phys_addr, 0, &retval);
527 if (!status)
528 memcpy(args.pointer, input.pointer, args.length);
529
530 kfree(input.pointer);
531 if (status)
532 return -ENXIO;
533
534 return retval;
535}
536
537static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval)
538{
539 int err;
540
541 err = asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval);
542
543 if (err)
544 return err;
545
546 if (*retval == ~0)
547 return -ENODEV;
548
549 return 0;
550}
551
552static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
553 u32 *retval)
554{
555 return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS, dev_id,
556 ctrl_param, retval);
557}
558
559/* Helper for special devices with magic return codes */
560static int asus_wmi_get_devstate_bits(struct asus_wmi *asus,
561 u32 dev_id, u32 mask)
562{
563 u32 retval = 0;
564 int err;
565
566 err = asus_wmi_get_devstate(asus, dev_id, &retval);
567 if (err < 0)
568 return err;
569
570 if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT))
571 return -ENODEV;
572
573 if (mask == ASUS_WMI_DSTS_STATUS_BIT) {
574 if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT)
575 return -ENODEV;
576 }
577
578 return retval & mask;
579}
580
581static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id)
582{
583 return asus_wmi_get_devstate_bits(asus, dev_id,
584 ASUS_WMI_DSTS_STATUS_BIT);
585}
586
587static bool asus_wmi_dev_is_present(struct asus_wmi *asus, u32 dev_id)
588{
589 u32 retval;
590 int status = asus_wmi_get_devstate(asus, dev_id, &retval);
591 pr_debug("%s called (0x%08x), retval: 0x%08x\n", __func__, dev_id, retval);
592
593 return status == 0 && (retval & ASUS_WMI_DSTS_PRESENCE_BIT);
594}
595
596/* Input **********************************************************************/
597static void asus_wmi_tablet_sw_report(struct asus_wmi *asus, bool value)
598{
599 input_report_switch(asus->inputdev, SW_TABLET_MODE,
600 asus->tablet_switch_inverted ? !value : value);
601 input_sync(asus->inputdev);
602}
603
604static void asus_wmi_tablet_sw_init(struct asus_wmi *asus, u32 dev_id, int event_code)
605{
606 struct device *dev = &asus->platform_device->dev;
607 int result;
608
609 result = asus_wmi_get_devstate_simple(asus, dev_id);
610 if (result >= 0) {
611 input_set_capability(asus->inputdev, EV_SW, SW_TABLET_MODE);
612 asus_wmi_tablet_sw_report(asus, result);
613 asus->tablet_switch_dev_id = dev_id;
614 asus->tablet_switch_event_code = event_code;
615 } else if (result == -ENODEV) {
616 dev_err(dev, "This device has tablet-mode-switch quirk but got ENODEV checking it. This is a bug.");
617 } else {
618 dev_err(dev, "Error checking for tablet-mode-switch: %d\n", result);
619 }
620}
621
622static int asus_wmi_input_init(struct asus_wmi *asus)
623{
624 struct device *dev = &asus->platform_device->dev;
625 int err;
626
627 asus->inputdev = input_allocate_device();
628 if (!asus->inputdev)
629 return -ENOMEM;
630
631 asus->inputdev->name = asus->driver->input_name;
632 asus->inputdev->phys = asus->driver->input_phys;
633 asus->inputdev->id.bustype = BUS_HOST;
634 asus->inputdev->dev.parent = dev;
635 set_bit(EV_REP, asus->inputdev->evbit);
636
637 err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL);
638 if (err)
639 goto err_free_dev;
640
641 switch (asus->driver->quirks->tablet_switch_mode) {
642 case asus_wmi_no_tablet_switch:
643 break;
644 case asus_wmi_kbd_dock_devid:
645 asus->tablet_switch_inverted = true;
646 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_KBD_DOCK, NOTIFY_KBD_DOCK_CHANGE);
647 break;
648 case asus_wmi_lid_flip_devid:
649 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_LID_FLIP, NOTIFY_LID_FLIP);
650 break;
651 case asus_wmi_lid_flip_rog_devid:
652 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_LID_FLIP_ROG, NOTIFY_LID_FLIP_ROG);
653 break;
654 }
655
656 err = input_register_device(asus->inputdev);
657 if (err)
658 goto err_free_dev;
659
660 return 0;
661
662err_free_dev:
663 input_free_device(asus->inputdev);
664 return err;
665}
666
667static void asus_wmi_input_exit(struct asus_wmi *asus)
668{
669 if (asus->inputdev)
670 input_unregister_device(asus->inputdev);
671
672 asus->inputdev = NULL;
673}
674
675/* Tablet mode ****************************************************************/
676
677static void asus_wmi_tablet_mode_get_state(struct asus_wmi *asus)
678{
679 int result;
680
681 if (!asus->tablet_switch_dev_id)
682 return;
683
684 result = asus_wmi_get_devstate_simple(asus, asus->tablet_switch_dev_id);
685 if (result >= 0)
686 asus_wmi_tablet_sw_report(asus, result);
687}
688
689/* Charging mode, 1=Barrel, 2=USB ******************************************/
690static ssize_t charge_mode_show(struct device *dev,
691 struct device_attribute *attr, char *buf)
692{
693 struct asus_wmi *asus = dev_get_drvdata(dev);
694 int result, value;
695
696 result = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CHARGE_MODE, &value);
697 if (result < 0)
698 return result;
699
700 return sysfs_emit(buf, "%d\n", value & 0xff);
701}
702
703static DEVICE_ATTR_RO(charge_mode);
704
705/* dGPU ********************************************************************/
706static ssize_t dgpu_disable_show(struct device *dev,
707 struct device_attribute *attr, char *buf)
708{
709 struct asus_wmi *asus = dev_get_drvdata(dev);
710 int result;
711
712 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_DGPU);
713 if (result < 0)
714 return result;
715
716 return sysfs_emit(buf, "%d\n", result);
717}
718
719/*
720 * A user may be required to store the value twice, typcial store first, then
721 * rescan PCI bus to activate power, then store a second time to save correctly.
722 * The reason for this is that an extra code path in the ACPI is enabled when
723 * the device and bus are powered.
724 */
725static ssize_t dgpu_disable_store(struct device *dev,
726 struct device_attribute *attr,
727 const char *buf, size_t count)
728{
729 int result, err;
730 u32 disable;
731
732 struct asus_wmi *asus = dev_get_drvdata(dev);
733
734 result = kstrtou32(buf, 10, &disable);
735 if (result)
736 return result;
737
738 if (disable > 1)
739 return -EINVAL;
740
741 if (asus->gpu_mux_dev) {
742 result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev);
743 if (result < 0)
744 /* An error here may signal greater failure of GPU handling */
745 return result;
746 if (!result && disable) {
747 err = -ENODEV;
748 pr_warn("Can not disable dGPU when the MUX is in dGPU mode: %d\n", err);
749 return err;
750 }
751 }
752
753 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_DGPU, disable, &result);
754 if (err) {
755 pr_warn("Failed to set dgpu disable: %d\n", err);
756 return err;
757 }
758
759 if (result > 1) {
760 pr_warn("Failed to set dgpu disable (result): 0x%x\n", result);
761 return -EIO;
762 }
763
764 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "dgpu_disable");
765
766 return count;
767}
768static DEVICE_ATTR_RW(dgpu_disable);
769
770/* eGPU ********************************************************************/
771static ssize_t egpu_enable_show(struct device *dev,
772 struct device_attribute *attr, char *buf)
773{
774 struct asus_wmi *asus = dev_get_drvdata(dev);
775 int result;
776
777 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU);
778 if (result < 0)
779 return result;
780
781 return sysfs_emit(buf, "%d\n", result);
782}
783
784/* The ACPI call to enable the eGPU also disables the internal dGPU */
785static ssize_t egpu_enable_store(struct device *dev,
786 struct device_attribute *attr,
787 const char *buf, size_t count)
788{
789 int result, err;
790 u32 enable;
791
792 struct asus_wmi *asus = dev_get_drvdata(dev);
793
794 err = kstrtou32(buf, 10, &enable);
795 if (err)
796 return err;
797
798 if (enable > 1)
799 return -EINVAL;
800
801 err = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
802 if (err < 0) {
803 pr_warn("Failed to get egpu connection status: %d\n", err);
804 return err;
805 }
806
807 if (asus->gpu_mux_dev) {
808 result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev);
809 if (result < 0) {
810 /* An error here may signal greater failure of GPU handling */
811 pr_warn("Failed to get gpu mux status: %d\n", result);
812 return result;
813 }
814 if (!result && enable) {
815 err = -ENODEV;
816 pr_warn("Can not enable eGPU when the MUX is in dGPU mode: %d\n", err);
817 return err;
818 }
819 }
820
821 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_EGPU, enable, &result);
822 if (err) {
823 pr_warn("Failed to set egpu state: %d\n", err);
824 return err;
825 }
826
827 if (result > 1) {
828 pr_warn("Failed to set egpu state (retval): 0x%x\n", result);
829 return -EIO;
830 }
831
832 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "egpu_enable");
833
834 return count;
835}
836static DEVICE_ATTR_RW(egpu_enable);
837
838/* Is eGPU connected? *********************************************************/
839static ssize_t egpu_connected_show(struct device *dev,
840 struct device_attribute *attr, char *buf)
841{
842 struct asus_wmi *asus = dev_get_drvdata(dev);
843 int result;
844
845 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
846 if (result < 0)
847 return result;
848
849 return sysfs_emit(buf, "%d\n", result);
850}
851
852static DEVICE_ATTR_RO(egpu_connected);
853
854/* gpu mux switch *************************************************************/
855static ssize_t gpu_mux_mode_show(struct device *dev,
856 struct device_attribute *attr, char *buf)
857{
858 struct asus_wmi *asus = dev_get_drvdata(dev);
859 int result;
860
861 result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev);
862 if (result < 0)
863 return result;
864
865 return sysfs_emit(buf, "%d\n", result);
866}
867
868static ssize_t gpu_mux_mode_store(struct device *dev,
869 struct device_attribute *attr,
870 const char *buf, size_t count)
871{
872 struct asus_wmi *asus = dev_get_drvdata(dev);
873 int result, err;
874 u32 optimus;
875
876 err = kstrtou32(buf, 10, &optimus);
877 if (err)
878 return err;
879
880 if (optimus > 1)
881 return -EINVAL;
882
883 if (asus->dgpu_disable_available) {
884 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_DGPU);
885 if (result < 0)
886 /* An error here may signal greater failure of GPU handling */
887 return result;
888 if (result && !optimus) {
889 err = -ENODEV;
890 pr_warn("Can not switch MUX to dGPU mode when dGPU is disabled: %d\n", err);
891 return err;
892 }
893 }
894
895 if (asus->egpu_enable_available) {
896 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU);
897 if (result < 0)
898 /* An error here may signal greater failure of GPU handling */
899 return result;
900 if (result && !optimus) {
901 err = -ENODEV;
902 pr_warn("Can not switch MUX to dGPU mode when eGPU is enabled: %d\n", err);
903 return err;
904 }
905 }
906
907 err = asus_wmi_set_devstate(asus->gpu_mux_dev, optimus, &result);
908 if (err) {
909 dev_err(dev, "Failed to set GPU MUX mode: %d\n", err);
910 return err;
911 }
912 /* !1 is considered a fail by ASUS */
913 if (result != 1) {
914 dev_warn(dev, "Failed to set GPU MUX mode (result): 0x%x\n", result);
915 return -EIO;
916 }
917
918 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "gpu_mux_mode");
919
920 return count;
921}
922static DEVICE_ATTR_RW(gpu_mux_mode);
923
924/* TUF Laptop Keyboard RGB Modes **********************************************/
925static ssize_t kbd_rgb_mode_store(struct device *dev,
926 struct device_attribute *attr,
927 const char *buf, size_t count)
928{
929 u32 cmd, mode, r, g, b, speed;
930 struct led_classdev *led;
931 struct asus_wmi *asus;
932 int err;
933
934 led = dev_get_drvdata(dev);
935 asus = container_of(led, struct asus_wmi, kbd_led);
936
937 if (sscanf(buf, "%d %d %d %d %d %d", &cmd, &mode, &r, &g, &b, &speed) != 6)
938 return -EINVAL;
939
940 /* B3 is set and B4 is save to BIOS */
941 switch (cmd) {
942 case 0:
943 cmd = 0xb3;
944 break;
945 case 1:
946 cmd = 0xb4;
947 break;
948 default:
949 return -EINVAL;
950 }
951
952 /* These are the known usable modes across all TUF/ROG */
953 if (mode >= 12 || mode == 9)
954 mode = 10;
955
956 switch (speed) {
957 case 0:
958 speed = 0xe1;
959 break;
960 case 1:
961 speed = 0xeb;
962 break;
963 case 2:
964 speed = 0xf5;
965 break;
966 default:
967 speed = 0xeb;
968 }
969
970 err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS, asus->kbd_rgb_dev,
971 cmd | (mode << 8) | (r << 16) | (g << 24), b | (speed << 8), NULL);
972 if (err)
973 return err;
974
975 return count;
976}
977static DEVICE_ATTR_WO(kbd_rgb_mode);
978
979static DEVICE_STRING_ATTR_RO(kbd_rgb_mode_index, 0444,
980 "cmd mode red green blue speed");
981
982static struct attribute *kbd_rgb_mode_attrs[] = {
983 &dev_attr_kbd_rgb_mode.attr,
984 &dev_attr_kbd_rgb_mode_index.attr.attr,
985 NULL,
986};
987
988static const struct attribute_group kbd_rgb_mode_group = {
989 .attrs = kbd_rgb_mode_attrs,
990};
991
992/* TUF Laptop Keyboard RGB State **********************************************/
993static ssize_t kbd_rgb_state_store(struct device *dev,
994 struct device_attribute *attr,
995 const char *buf, size_t count)
996{
997 u32 flags, cmd, boot, awake, sleep, keyboard;
998 int err;
999
1000 if (sscanf(buf, "%d %d %d %d %d", &cmd, &boot, &awake, &sleep, &keyboard) != 5)
1001 return -EINVAL;
1002
1003 if (cmd)
1004 cmd = BIT(2);
1005
1006 flags = 0;
1007 if (boot)
1008 flags |= BIT(1);
1009 if (awake)
1010 flags |= BIT(3);
1011 if (sleep)
1012 flags |= BIT(5);
1013 if (keyboard)
1014 flags |= BIT(7);
1015
1016 /* 0xbd is the required default arg0 for the method. Nothing happens otherwise */
1017 err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS,
1018 ASUS_WMI_DEVID_TUF_RGB_STATE, 0xbd | cmd << 8 | (flags << 16), 0, NULL);
1019 if (err)
1020 return err;
1021
1022 return count;
1023}
1024static DEVICE_ATTR_WO(kbd_rgb_state);
1025
1026static DEVICE_STRING_ATTR_RO(kbd_rgb_state_index, 0444,
1027 "cmd boot awake sleep keyboard");
1028
1029static struct attribute *kbd_rgb_state_attrs[] = {
1030 &dev_attr_kbd_rgb_state.attr,
1031 &dev_attr_kbd_rgb_state_index.attr.attr,
1032 NULL,
1033};
1034
1035static const struct attribute_group kbd_rgb_state_group = {
1036 .attrs = kbd_rgb_state_attrs,
1037};
1038
1039static const struct attribute_group *kbd_rgb_mode_groups[] = {
1040 NULL,
1041 NULL,
1042 NULL,
1043};
1044
1045/* Tunable: PPT: Intel=PL1, AMD=SPPT *****************************************/
1046static ssize_t ppt_pl2_sppt_store(struct device *dev,
1047 struct device_attribute *attr,
1048 const char *buf, size_t count)
1049{
1050 struct asus_wmi *asus = dev_get_drvdata(dev);
1051 int result, err;
1052 u32 value;
1053
1054 result = kstrtou32(buf, 10, &value);
1055 if (result)
1056 return result;
1057
1058 if (value < PPT_TOTAL_MIN || value > PPT_TOTAL_MAX)
1059 return -EINVAL;
1060
1061 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_PL2_SPPT, value, &result);
1062 if (err) {
1063 pr_warn("Failed to set ppt_pl2_sppt: %d\n", err);
1064 return err;
1065 }
1066
1067 if (result > 1) {
1068 pr_warn("Failed to set ppt_pl2_sppt (result): 0x%x\n", result);
1069 return -EIO;
1070 }
1071
1072 asus->ppt_pl2_sppt = value;
1073 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_pl2_sppt");
1074
1075 return count;
1076}
1077
1078static ssize_t ppt_pl2_sppt_show(struct device *dev,
1079 struct device_attribute *attr,
1080 char *buf)
1081{
1082 struct asus_wmi *asus = dev_get_drvdata(dev);
1083
1084 return sysfs_emit(buf, "%u\n", asus->ppt_pl2_sppt);
1085}
1086static DEVICE_ATTR_RW(ppt_pl2_sppt);
1087
1088/* Tunable: PPT, Intel=PL1, AMD=SPL ******************************************/
1089static ssize_t ppt_pl1_spl_store(struct device *dev,
1090 struct device_attribute *attr,
1091 const char *buf, size_t count)
1092{
1093 struct asus_wmi *asus = dev_get_drvdata(dev);
1094 int result, err;
1095 u32 value;
1096
1097 result = kstrtou32(buf, 10, &value);
1098 if (result)
1099 return result;
1100
1101 if (value < PPT_TOTAL_MIN || value > PPT_TOTAL_MAX)
1102 return -EINVAL;
1103
1104 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_PL1_SPL, value, &result);
1105 if (err) {
1106 pr_warn("Failed to set ppt_pl1_spl: %d\n", err);
1107 return err;
1108 }
1109
1110 if (result > 1) {
1111 pr_warn("Failed to set ppt_pl1_spl (result): 0x%x\n", result);
1112 return -EIO;
1113 }
1114
1115 asus->ppt_pl1_spl = value;
1116 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_pl1_spl");
1117
1118 return count;
1119}
1120static ssize_t ppt_pl1_spl_show(struct device *dev,
1121 struct device_attribute *attr,
1122 char *buf)
1123{
1124 struct asus_wmi *asus = dev_get_drvdata(dev);
1125
1126 return sysfs_emit(buf, "%u\n", asus->ppt_pl1_spl);
1127}
1128static DEVICE_ATTR_RW(ppt_pl1_spl);
1129
1130/* Tunable: PPT APU FPPT ******************************************************/
1131static ssize_t ppt_fppt_store(struct device *dev,
1132 struct device_attribute *attr,
1133 const char *buf, size_t count)
1134{
1135 struct asus_wmi *asus = dev_get_drvdata(dev);
1136 int result, err;
1137 u32 value;
1138
1139 result = kstrtou32(buf, 10, &value);
1140 if (result)
1141 return result;
1142
1143 if (value < PPT_TOTAL_MIN || value > PPT_TOTAL_MAX)
1144 return -EINVAL;
1145
1146 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_FPPT, value, &result);
1147 if (err) {
1148 pr_warn("Failed to set ppt_fppt: %d\n", err);
1149 return err;
1150 }
1151
1152 if (result > 1) {
1153 pr_warn("Failed to set ppt_fppt (result): 0x%x\n", result);
1154 return -EIO;
1155 }
1156
1157 asus->ppt_fppt = value;
1158 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_fpu_sppt");
1159
1160 return count;
1161}
1162
1163static ssize_t ppt_fppt_show(struct device *dev,
1164 struct device_attribute *attr,
1165 char *buf)
1166{
1167 struct asus_wmi *asus = dev_get_drvdata(dev);
1168
1169 return sysfs_emit(buf, "%u\n", asus->ppt_fppt);
1170}
1171static DEVICE_ATTR_RW(ppt_fppt);
1172
1173/* Tunable: PPT APU SPPT *****************************************************/
1174static ssize_t ppt_apu_sppt_store(struct device *dev,
1175 struct device_attribute *attr,
1176 const char *buf, size_t count)
1177{
1178 struct asus_wmi *asus = dev_get_drvdata(dev);
1179 int result, err;
1180 u32 value;
1181
1182 result = kstrtou32(buf, 10, &value);
1183 if (result)
1184 return result;
1185
1186 if (value < PPT_CPU_MIN || value > PPT_CPU_MAX)
1187 return -EINVAL;
1188
1189 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_APU_SPPT, value, &result);
1190 if (err) {
1191 pr_warn("Failed to set ppt_apu_sppt: %d\n", err);
1192 return err;
1193 }
1194
1195 if (result > 1) {
1196 pr_warn("Failed to set ppt_apu_sppt (result): 0x%x\n", result);
1197 return -EIO;
1198 }
1199
1200 asus->ppt_apu_sppt = value;
1201 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_apu_sppt");
1202
1203 return count;
1204}
1205
1206static ssize_t ppt_apu_sppt_show(struct device *dev,
1207 struct device_attribute *attr,
1208 char *buf)
1209{
1210 struct asus_wmi *asus = dev_get_drvdata(dev);
1211
1212 return sysfs_emit(buf, "%u\n", asus->ppt_apu_sppt);
1213}
1214static DEVICE_ATTR_RW(ppt_apu_sppt);
1215
1216/* Tunable: PPT platform SPPT ************************************************/
1217static ssize_t ppt_platform_sppt_store(struct device *dev,
1218 struct device_attribute *attr,
1219 const char *buf, size_t count)
1220{
1221 struct asus_wmi *asus = dev_get_drvdata(dev);
1222 int result, err;
1223 u32 value;
1224
1225 result = kstrtou32(buf, 10, &value);
1226 if (result)
1227 return result;
1228
1229 if (value < PPT_CPU_MIN || value > PPT_CPU_MAX)
1230 return -EINVAL;
1231
1232 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_PLAT_SPPT, value, &result);
1233 if (err) {
1234 pr_warn("Failed to set ppt_platform_sppt: %d\n", err);
1235 return err;
1236 }
1237
1238 if (result > 1) {
1239 pr_warn("Failed to set ppt_platform_sppt (result): 0x%x\n", result);
1240 return -EIO;
1241 }
1242
1243 asus->ppt_platform_sppt = value;
1244 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_platform_sppt");
1245
1246 return count;
1247}
1248
1249static ssize_t ppt_platform_sppt_show(struct device *dev,
1250 struct device_attribute *attr,
1251 char *buf)
1252{
1253 struct asus_wmi *asus = dev_get_drvdata(dev);
1254
1255 return sysfs_emit(buf, "%u\n", asus->ppt_platform_sppt);
1256}
1257static DEVICE_ATTR_RW(ppt_platform_sppt);
1258
1259/* Tunable: NVIDIA dynamic boost *********************************************/
1260static ssize_t nv_dynamic_boost_store(struct device *dev,
1261 struct device_attribute *attr,
1262 const char *buf, size_t count)
1263{
1264 struct asus_wmi *asus = dev_get_drvdata(dev);
1265 int result, err;
1266 u32 value;
1267
1268 result = kstrtou32(buf, 10, &value);
1269 if (result)
1270 return result;
1271
1272 if (value < NVIDIA_BOOST_MIN || value > NVIDIA_BOOST_MAX)
1273 return -EINVAL;
1274
1275 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_NV_DYN_BOOST, value, &result);
1276 if (err) {
1277 pr_warn("Failed to set nv_dynamic_boost: %d\n", err);
1278 return err;
1279 }
1280
1281 if (result > 1) {
1282 pr_warn("Failed to set nv_dynamic_boost (result): 0x%x\n", result);
1283 return -EIO;
1284 }
1285
1286 asus->nv_dynamic_boost = value;
1287 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "nv_dynamic_boost");
1288
1289 return count;
1290}
1291
1292static ssize_t nv_dynamic_boost_show(struct device *dev,
1293 struct device_attribute *attr,
1294 char *buf)
1295{
1296 struct asus_wmi *asus = dev_get_drvdata(dev);
1297
1298 return sysfs_emit(buf, "%u\n", asus->nv_dynamic_boost);
1299}
1300static DEVICE_ATTR_RW(nv_dynamic_boost);
1301
1302/* Tunable: NVIDIA temperature target ****************************************/
1303static ssize_t nv_temp_target_store(struct device *dev,
1304 struct device_attribute *attr,
1305 const char *buf, size_t count)
1306{
1307 struct asus_wmi *asus = dev_get_drvdata(dev);
1308 int result, err;
1309 u32 value;
1310
1311 result = kstrtou32(buf, 10, &value);
1312 if (result)
1313 return result;
1314
1315 if (value < NVIDIA_TEMP_MIN || value > NVIDIA_TEMP_MAX)
1316 return -EINVAL;
1317
1318 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_NV_THERM_TARGET, value, &result);
1319 if (err) {
1320 pr_warn("Failed to set nv_temp_target: %d\n", err);
1321 return err;
1322 }
1323
1324 if (result > 1) {
1325 pr_warn("Failed to set nv_temp_target (result): 0x%x\n", result);
1326 return -EIO;
1327 }
1328
1329 asus->nv_temp_target = value;
1330 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "nv_temp_target");
1331
1332 return count;
1333}
1334
1335static ssize_t nv_temp_target_show(struct device *dev,
1336 struct device_attribute *attr,
1337 char *buf)
1338{
1339 struct asus_wmi *asus = dev_get_drvdata(dev);
1340
1341 return sysfs_emit(buf, "%u\n", asus->nv_temp_target);
1342}
1343static DEVICE_ATTR_RW(nv_temp_target);
1344
1345/* Ally MCU Powersave ********************************************************/
1346static ssize_t mcu_powersave_show(struct device *dev,
1347 struct device_attribute *attr, char *buf)
1348{
1349 struct asus_wmi *asus = dev_get_drvdata(dev);
1350 int result;
1351
1352 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_MCU_POWERSAVE);
1353 if (result < 0)
1354 return result;
1355
1356 return sysfs_emit(buf, "%d\n", result);
1357}
1358
1359static ssize_t mcu_powersave_store(struct device *dev,
1360 struct device_attribute *attr,
1361 const char *buf, size_t count)
1362{
1363 int result, err;
1364 u32 enable;
1365
1366 struct asus_wmi *asus = dev_get_drvdata(dev);
1367
1368 result = kstrtou32(buf, 10, &enable);
1369 if (result)
1370 return result;
1371
1372 if (enable > 1)
1373 return -EINVAL;
1374
1375 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MCU_POWERSAVE, enable, &result);
1376 if (err) {
1377 pr_warn("Failed to set MCU powersave: %d\n", err);
1378 return err;
1379 }
1380
1381 if (result > 1) {
1382 pr_warn("Failed to set MCU powersave (result): 0x%x\n", result);
1383 return -EIO;
1384 }
1385
1386 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "mcu_powersave");
1387
1388 return count;
1389}
1390static DEVICE_ATTR_RW(mcu_powersave);
1391
1392/* Battery ********************************************************************/
1393
1394/* The battery maximum charging percentage */
1395static int charge_end_threshold;
1396
1397static ssize_t charge_control_end_threshold_store(struct device *dev,
1398 struct device_attribute *attr,
1399 const char *buf, size_t count)
1400{
1401 int value, ret, rv;
1402
1403 ret = kstrtouint(buf, 10, &value);
1404 if (ret)
1405 return ret;
1406
1407 if (value < 0 || value > 100)
1408 return -EINVAL;
1409
1410 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_RSOC, value, &rv);
1411 if (ret)
1412 return ret;
1413
1414 if (rv != 1)
1415 return -EIO;
1416
1417 /* There isn't any method in the DSDT to read the threshold, so we
1418 * save the threshold.
1419 */
1420 charge_end_threshold = value;
1421 return count;
1422}
1423
1424static ssize_t charge_control_end_threshold_show(struct device *device,
1425 struct device_attribute *attr,
1426 char *buf)
1427{
1428 return sysfs_emit(buf, "%d\n", charge_end_threshold);
1429}
1430
1431static DEVICE_ATTR_RW(charge_control_end_threshold);
1432
1433static int asus_wmi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
1434{
1435 /* The WMI method does not provide a way to specific a battery, so we
1436 * just assume it is the first battery.
1437 * Note: On some newer ASUS laptops (Zenbook UM431DA), the primary/first
1438 * battery is named BATT.
1439 */
1440 if (strcmp(battery->desc->name, "BAT0") != 0 &&
1441 strcmp(battery->desc->name, "BAT1") != 0 &&
1442 strcmp(battery->desc->name, "BATC") != 0 &&
1443 strcmp(battery->desc->name, "BATT") != 0)
1444 return -ENODEV;
1445
1446 if (device_create_file(&battery->dev,
1447 &dev_attr_charge_control_end_threshold))
1448 return -ENODEV;
1449
1450 /* The charge threshold is only reset when the system is power cycled,
1451 * and we can't get the current threshold so let set it to 100% when
1452 * a battery is added.
1453 */
1454 asus_wmi_set_devstate(ASUS_WMI_DEVID_RSOC, 100, NULL);
1455 charge_end_threshold = 100;
1456
1457 return 0;
1458}
1459
1460static int asus_wmi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
1461{
1462 device_remove_file(&battery->dev,
1463 &dev_attr_charge_control_end_threshold);
1464 return 0;
1465}
1466
1467static struct acpi_battery_hook battery_hook = {
1468 .add_battery = asus_wmi_battery_add,
1469 .remove_battery = asus_wmi_battery_remove,
1470 .name = "ASUS Battery Extension",
1471};
1472
1473static void asus_wmi_battery_init(struct asus_wmi *asus)
1474{
1475 asus->battery_rsoc_available = false;
1476 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_RSOC)) {
1477 asus->battery_rsoc_available = true;
1478 battery_hook_register(&battery_hook);
1479 }
1480}
1481
1482static void asus_wmi_battery_exit(struct asus_wmi *asus)
1483{
1484 if (asus->battery_rsoc_available)
1485 battery_hook_unregister(&battery_hook);
1486}
1487
1488/* LEDs ***********************************************************************/
1489
1490/*
1491 * These functions actually update the LED's, and are called from a
1492 * workqueue. By doing this as separate work rather than when the LED
1493 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
1494 * potentially bad time, such as a timer interrupt.
1495 */
1496static void tpd_led_update(struct work_struct *work)
1497{
1498 int ctrl_param;
1499 struct asus_wmi *asus;
1500
1501 asus = container_of(work, struct asus_wmi, tpd_led_work);
1502
1503 ctrl_param = asus->tpd_led_wk;
1504 asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
1505}
1506
1507static void tpd_led_set(struct led_classdev *led_cdev,
1508 enum led_brightness value)
1509{
1510 struct asus_wmi *asus;
1511
1512 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
1513
1514 asus->tpd_led_wk = !!value;
1515 queue_work(asus->led_workqueue, &asus->tpd_led_work);
1516}
1517
1518static int read_tpd_led_state(struct asus_wmi *asus)
1519{
1520 return asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_TOUCHPAD_LED);
1521}
1522
1523static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
1524{
1525 struct asus_wmi *asus;
1526
1527 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
1528
1529 return read_tpd_led_state(asus);
1530}
1531
1532static void kbd_led_update(struct asus_wmi *asus)
1533{
1534 int ctrl_param = 0;
1535
1536 ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F);
1537 asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL);
1538}
1539
1540static int kbd_led_read(struct asus_wmi *asus, int *level, int *env)
1541{
1542 int retval;
1543
1544 /*
1545 * bits 0-2: level
1546 * bit 7: light on/off
1547 * bit 8-10: environment (0: dark, 1: normal, 2: light)
1548 * bit 17: status unknown
1549 */
1550 retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT,
1551 0xFFFF);
1552
1553 /* Unknown status is considered as off */
1554 if (retval == 0x8000)
1555 retval = 0;
1556
1557 if (retval < 0)
1558 return retval;
1559
1560 if (level)
1561 *level = retval & 0x7F;
1562 if (env)
1563 *env = (retval >> 8) & 0x7F;
1564 return 0;
1565}
1566
1567static void do_kbd_led_set(struct led_classdev *led_cdev, int value)
1568{
1569 struct asus_wmi *asus;
1570 int max_level;
1571
1572 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
1573 max_level = asus->kbd_led.max_brightness;
1574
1575 asus->kbd_led_wk = clamp_val(value, 0, max_level);
1576 kbd_led_update(asus);
1577}
1578
1579static void kbd_led_set(struct led_classdev *led_cdev,
1580 enum led_brightness value)
1581{
1582 /* Prevent disabling keyboard backlight on module unregister */
1583 if (led_cdev->flags & LED_UNREGISTERING)
1584 return;
1585
1586 do_kbd_led_set(led_cdev, value);
1587}
1588
1589static void kbd_led_set_by_kbd(struct asus_wmi *asus, enum led_brightness value)
1590{
1591 struct led_classdev *led_cdev = &asus->kbd_led;
1592
1593 do_kbd_led_set(led_cdev, value);
1594 led_classdev_notify_brightness_hw_changed(led_cdev, asus->kbd_led_wk);
1595}
1596
1597static enum led_brightness kbd_led_get(struct led_classdev *led_cdev)
1598{
1599 struct asus_wmi *asus;
1600 int retval, value;
1601
1602 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
1603
1604 retval = kbd_led_read(asus, &value, NULL);
1605 if (retval < 0)
1606 return retval;
1607
1608 return value;
1609}
1610
1611static int wlan_led_unknown_state(struct asus_wmi *asus)
1612{
1613 u32 result;
1614
1615 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
1616
1617 return result & ASUS_WMI_DSTS_UNKNOWN_BIT;
1618}
1619
1620static void wlan_led_update(struct work_struct *work)
1621{
1622 int ctrl_param;
1623 struct asus_wmi *asus;
1624
1625 asus = container_of(work, struct asus_wmi, wlan_led_work);
1626
1627 ctrl_param = asus->wlan_led_wk;
1628 asus_wmi_set_devstate(ASUS_WMI_DEVID_WIRELESS_LED, ctrl_param, NULL);
1629}
1630
1631static void wlan_led_set(struct led_classdev *led_cdev,
1632 enum led_brightness value)
1633{
1634 struct asus_wmi *asus;
1635
1636 asus = container_of(led_cdev, struct asus_wmi, wlan_led);
1637
1638 asus->wlan_led_wk = !!value;
1639 queue_work(asus->led_workqueue, &asus->wlan_led_work);
1640}
1641
1642static enum led_brightness wlan_led_get(struct led_classdev *led_cdev)
1643{
1644 struct asus_wmi *asus;
1645 u32 result;
1646
1647 asus = container_of(led_cdev, struct asus_wmi, wlan_led);
1648 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
1649
1650 return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
1651}
1652
1653static void lightbar_led_update(struct work_struct *work)
1654{
1655 struct asus_wmi *asus;
1656 int ctrl_param;
1657
1658 asus = container_of(work, struct asus_wmi, lightbar_led_work);
1659
1660 ctrl_param = asus->lightbar_led_wk;
1661 asus_wmi_set_devstate(ASUS_WMI_DEVID_LIGHTBAR, ctrl_param, NULL);
1662}
1663
1664static void lightbar_led_set(struct led_classdev *led_cdev,
1665 enum led_brightness value)
1666{
1667 struct asus_wmi *asus;
1668
1669 asus = container_of(led_cdev, struct asus_wmi, lightbar_led);
1670
1671 asus->lightbar_led_wk = !!value;
1672 queue_work(asus->led_workqueue, &asus->lightbar_led_work);
1673}
1674
1675static enum led_brightness lightbar_led_get(struct led_classdev *led_cdev)
1676{
1677 struct asus_wmi *asus;
1678 u32 result;
1679
1680 asus = container_of(led_cdev, struct asus_wmi, lightbar_led);
1681 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_LIGHTBAR, &result);
1682
1683 return result & ASUS_WMI_DSTS_LIGHTBAR_MASK;
1684}
1685
1686static int micmute_led_set(struct led_classdev *led_cdev,
1687 enum led_brightness brightness)
1688{
1689 int state = brightness != LED_OFF;
1690 int err;
1691
1692 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MICMUTE_LED, state, NULL);
1693 return err < 0 ? err : 0;
1694}
1695
1696static enum led_brightness camera_led_get(struct led_classdev *led_cdev)
1697{
1698 struct asus_wmi *asus;
1699 u32 result;
1700
1701 asus = container_of(led_cdev, struct asus_wmi, camera_led);
1702 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CAMERA_LED, &result);
1703
1704 return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
1705}
1706
1707static int camera_led_set(struct led_classdev *led_cdev,
1708 enum led_brightness brightness)
1709{
1710 int state = brightness != LED_OFF;
1711 int err;
1712
1713 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_CAMERA_LED, state, NULL);
1714 return err < 0 ? err : 0;
1715}
1716
1717static void asus_wmi_led_exit(struct asus_wmi *asus)
1718{
1719 led_classdev_unregister(&asus->kbd_led);
1720 led_classdev_unregister(&asus->tpd_led);
1721 led_classdev_unregister(&asus->wlan_led);
1722 led_classdev_unregister(&asus->lightbar_led);
1723 led_classdev_unregister(&asus->micmute_led);
1724 led_classdev_unregister(&asus->camera_led);
1725
1726 if (asus->led_workqueue)
1727 destroy_workqueue(asus->led_workqueue);
1728}
1729
1730static int asus_wmi_led_init(struct asus_wmi *asus)
1731{
1732 int rv = 0, num_rgb_groups = 0, led_val;
1733
1734 if (asus->kbd_rgb_dev)
1735 kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_mode_group;
1736 if (asus->kbd_rgb_state_available)
1737 kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_state_group;
1738
1739 asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
1740 if (!asus->led_workqueue)
1741 return -ENOMEM;
1742
1743 if (read_tpd_led_state(asus) >= 0) {
1744 INIT_WORK(&asus->tpd_led_work, tpd_led_update);
1745
1746 asus->tpd_led.name = "asus::touchpad";
1747 asus->tpd_led.brightness_set = tpd_led_set;
1748 asus->tpd_led.brightness_get = tpd_led_get;
1749 asus->tpd_led.max_brightness = 1;
1750
1751 rv = led_classdev_register(&asus->platform_device->dev,
1752 &asus->tpd_led);
1753 if (rv)
1754 goto error;
1755 }
1756
1757 if (!kbd_led_read(asus, &led_val, NULL) && !dmi_check_system(asus_use_hid_led_dmi_ids)) {
1758 pr_info("using asus-wmi for asus::kbd_backlight\n");
1759 asus->kbd_led_wk = led_val;
1760 asus->kbd_led.name = "asus::kbd_backlight";
1761 asus->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
1762 asus->kbd_led.brightness_set = kbd_led_set;
1763 asus->kbd_led.brightness_get = kbd_led_get;
1764 asus->kbd_led.max_brightness = 3;
1765
1766 if (num_rgb_groups != 0)
1767 asus->kbd_led.groups = kbd_rgb_mode_groups;
1768
1769 rv = led_classdev_register(&asus->platform_device->dev,
1770 &asus->kbd_led);
1771 if (rv)
1772 goto error;
1773 }
1774
1775 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_WIRELESS_LED)
1776 && (asus->driver->quirks->wapf > 0)) {
1777 INIT_WORK(&asus->wlan_led_work, wlan_led_update);
1778
1779 asus->wlan_led.name = "asus::wlan";
1780 asus->wlan_led.brightness_set = wlan_led_set;
1781 if (!wlan_led_unknown_state(asus))
1782 asus->wlan_led.brightness_get = wlan_led_get;
1783 asus->wlan_led.flags = LED_CORE_SUSPENDRESUME;
1784 asus->wlan_led.max_brightness = 1;
1785 asus->wlan_led.default_trigger = "asus-wlan";
1786
1787 rv = led_classdev_register(&asus->platform_device->dev,
1788 &asus->wlan_led);
1789 if (rv)
1790 goto error;
1791 }
1792
1793 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_LIGHTBAR)) {
1794 INIT_WORK(&asus->lightbar_led_work, lightbar_led_update);
1795
1796 asus->lightbar_led.name = "asus::lightbar";
1797 asus->lightbar_led.brightness_set = lightbar_led_set;
1798 asus->lightbar_led.brightness_get = lightbar_led_get;
1799 asus->lightbar_led.max_brightness = 1;
1800
1801 rv = led_classdev_register(&asus->platform_device->dev,
1802 &asus->lightbar_led);
1803 }
1804
1805 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MICMUTE_LED)) {
1806 asus->micmute_led.name = "platform::micmute";
1807 asus->micmute_led.max_brightness = 1;
1808 asus->micmute_led.brightness_set_blocking = micmute_led_set;
1809 asus->micmute_led.default_trigger = "audio-micmute";
1810
1811 rv = led_classdev_register(&asus->platform_device->dev,
1812 &asus->micmute_led);
1813 if (rv)
1814 goto error;
1815 }
1816
1817 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CAMERA_LED)) {
1818 asus->camera_led.name = "asus::camera";
1819 asus->camera_led.max_brightness = 1;
1820 asus->camera_led.brightness_get = camera_led_get;
1821 asus->camera_led.brightness_set_blocking = camera_led_set;
1822
1823 rv = led_classdev_register(&asus->platform_device->dev,
1824 &asus->camera_led);
1825 if (rv)
1826 goto error;
1827 }
1828
1829 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_OOBE)) {
1830 /*
1831 * Disable OOBE state, so that e.g. the keyboard backlight
1832 * works.
1833 */
1834 rv = asus_wmi_set_devstate(ASUS_WMI_DEVID_OOBE, 1, NULL);
1835 if (rv)
1836 goto error;
1837 }
1838
1839error:
1840 if (rv)
1841 asus_wmi_led_exit(asus);
1842
1843 return rv;
1844}
1845
1846/* RF *************************************************************************/
1847
1848/*
1849 * PCI hotplug (for wlan rfkill)
1850 */
1851static bool asus_wlan_rfkill_blocked(struct asus_wmi *asus)
1852{
1853 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
1854
1855 if (result < 0)
1856 return false;
1857 return !result;
1858}
1859
1860static void asus_rfkill_hotplug(struct asus_wmi *asus)
1861{
1862 struct pci_dev *dev;
1863 struct pci_bus *bus;
1864 bool blocked;
1865 bool absent;
1866 u32 l;
1867
1868 mutex_lock(&asus->wmi_lock);
1869 blocked = asus_wlan_rfkill_blocked(asus);
1870 mutex_unlock(&asus->wmi_lock);
1871
1872 mutex_lock(&asus->hotplug_lock);
1873 pci_lock_rescan_remove();
1874
1875 if (asus->wlan.rfkill)
1876 rfkill_set_sw_state(asus->wlan.rfkill, blocked);
1877
1878 if (asus->hotplug_slot.ops) {
1879 bus = pci_find_bus(0, 1);
1880 if (!bus) {
1881 pr_warn("Unable to find PCI bus 1?\n");
1882 goto out_unlock;
1883 }
1884
1885 if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
1886 pr_err("Unable to read PCI config space?\n");
1887 goto out_unlock;
1888 }
1889 absent = (l == 0xffffffff);
1890
1891 if (blocked != absent) {
1892 pr_warn("BIOS says wireless lan is %s, but the pci device is %s\n",
1893 blocked ? "blocked" : "unblocked",
1894 absent ? "absent" : "present");
1895 pr_warn("skipped wireless hotplug as probably inappropriate for this model\n");
1896 goto out_unlock;
1897 }
1898
1899 if (!blocked) {
1900 dev = pci_get_slot(bus, 0);
1901 if (dev) {
1902 /* Device already present */
1903 pci_dev_put(dev);
1904 goto out_unlock;
1905 }
1906 dev = pci_scan_single_device(bus, 0);
1907 if (dev) {
1908 pci_bus_assign_resources(bus);
1909 pci_bus_add_device(dev);
1910 }
1911 } else {
1912 dev = pci_get_slot(bus, 0);
1913 if (dev) {
1914 pci_stop_and_remove_bus_device(dev);
1915 pci_dev_put(dev);
1916 }
1917 }
1918 }
1919
1920out_unlock:
1921 pci_unlock_rescan_remove();
1922 mutex_unlock(&asus->hotplug_lock);
1923}
1924
1925static void asus_rfkill_notify(acpi_handle handle, u32 event, void *data)
1926{
1927 struct asus_wmi *asus = data;
1928
1929 if (event != ACPI_NOTIFY_BUS_CHECK)
1930 return;
1931
1932 /*
1933 * We can't call directly asus_rfkill_hotplug because most
1934 * of the time WMBC is still being executed and not reetrant.
1935 * There is currently no way to tell ACPICA that we want this
1936 * method to be serialized, we schedule a asus_rfkill_hotplug
1937 * call later, in a safer context.
1938 */
1939 queue_work(asus->hotplug_workqueue, &asus->hotplug_work);
1940}
1941
1942static int asus_register_rfkill_notifier(struct asus_wmi *asus, char *node)
1943{
1944 acpi_status status;
1945 acpi_handle handle;
1946
1947 status = acpi_get_handle(NULL, node, &handle);
1948 if (ACPI_FAILURE(status))
1949 return -ENODEV;
1950
1951 status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
1952 asus_rfkill_notify, asus);
1953 if (ACPI_FAILURE(status))
1954 pr_warn("Failed to register notify on %s\n", node);
1955
1956 return 0;
1957}
1958
1959static void asus_unregister_rfkill_notifier(struct asus_wmi *asus, char *node)
1960{
1961 acpi_status status = AE_OK;
1962 acpi_handle handle;
1963
1964 status = acpi_get_handle(NULL, node, &handle);
1965 if (ACPI_FAILURE(status))
1966 return;
1967
1968 status = acpi_remove_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
1969 asus_rfkill_notify);
1970 if (ACPI_FAILURE(status))
1971 pr_err("Error removing rfkill notify handler %s\n", node);
1972}
1973
1974static int asus_get_adapter_status(struct hotplug_slot *hotplug_slot,
1975 u8 *value)
1976{
1977 struct asus_wmi *asus = container_of(hotplug_slot,
1978 struct asus_wmi, hotplug_slot);
1979 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
1980
1981 if (result < 0)
1982 return result;
1983
1984 *value = !!result;
1985 return 0;
1986}
1987
1988static const struct hotplug_slot_ops asus_hotplug_slot_ops = {
1989 .get_adapter_status = asus_get_adapter_status,
1990 .get_power_status = asus_get_adapter_status,
1991};
1992
1993static void asus_hotplug_work(struct work_struct *work)
1994{
1995 struct asus_wmi *asus;
1996
1997 asus = container_of(work, struct asus_wmi, hotplug_work);
1998 asus_rfkill_hotplug(asus);
1999}
2000
2001static int asus_setup_pci_hotplug(struct asus_wmi *asus)
2002{
2003 int ret = -ENOMEM;
2004 struct pci_bus *bus = pci_find_bus(0, 1);
2005
2006 if (!bus) {
2007 pr_err("Unable to find wifi PCI bus\n");
2008 return -ENODEV;
2009 }
2010
2011 asus->hotplug_workqueue =
2012 create_singlethread_workqueue("hotplug_workqueue");
2013 if (!asus->hotplug_workqueue)
2014 goto error_workqueue;
2015
2016 INIT_WORK(&asus->hotplug_work, asus_hotplug_work);
2017
2018 asus->hotplug_slot.ops = &asus_hotplug_slot_ops;
2019
2020 ret = pci_hp_register(&asus->hotplug_slot, bus, 0, "asus-wifi");
2021 if (ret) {
2022 pr_err("Unable to register hotplug slot - %d\n", ret);
2023 goto error_register;
2024 }
2025
2026 return 0;
2027
2028error_register:
2029 asus->hotplug_slot.ops = NULL;
2030 destroy_workqueue(asus->hotplug_workqueue);
2031error_workqueue:
2032 return ret;
2033}
2034
2035/*
2036 * Rfkill devices
2037 */
2038static int asus_rfkill_set(void *data, bool blocked)
2039{
2040 struct asus_rfkill *priv = data;
2041 u32 ctrl_param = !blocked;
2042 u32 dev_id = priv->dev_id;
2043
2044 /*
2045 * If the user bit is set, BIOS can't set and record the wlan status,
2046 * it will report the value read from id ASUS_WMI_DEVID_WLAN_LED
2047 * while we query the wlan status through WMI(ASUS_WMI_DEVID_WLAN).
2048 * So, we have to record wlan status in id ASUS_WMI_DEVID_WLAN_LED
2049 * while setting the wlan status through WMI.
2050 * This is also the behavior that windows app will do.
2051 */
2052 if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
2053 priv->asus->driver->wlan_ctrl_by_user)
2054 dev_id = ASUS_WMI_DEVID_WLAN_LED;
2055
2056 return asus_wmi_set_devstate(dev_id, ctrl_param, NULL);
2057}
2058
2059static void asus_rfkill_query(struct rfkill *rfkill, void *data)
2060{
2061 struct asus_rfkill *priv = data;
2062 int result;
2063
2064 result = asus_wmi_get_devstate_simple(priv->asus, priv->dev_id);
2065
2066 if (result < 0)
2067 return;
2068
2069 rfkill_set_sw_state(priv->rfkill, !result);
2070}
2071
2072static int asus_rfkill_wlan_set(void *data, bool blocked)
2073{
2074 struct asus_rfkill *priv = data;
2075 struct asus_wmi *asus = priv->asus;
2076 int ret;
2077
2078 /*
2079 * This handler is enabled only if hotplug is enabled.
2080 * In this case, the asus_wmi_set_devstate() will
2081 * trigger a wmi notification and we need to wait
2082 * this call to finish before being able to call
2083 * any wmi method
2084 */
2085 mutex_lock(&asus->wmi_lock);
2086 ret = asus_rfkill_set(data, blocked);
2087 mutex_unlock(&asus->wmi_lock);
2088 return ret;
2089}
2090
2091static const struct rfkill_ops asus_rfkill_wlan_ops = {
2092 .set_block = asus_rfkill_wlan_set,
2093 .query = asus_rfkill_query,
2094};
2095
2096static const struct rfkill_ops asus_rfkill_ops = {
2097 .set_block = asus_rfkill_set,
2098 .query = asus_rfkill_query,
2099};
2100
2101static int asus_new_rfkill(struct asus_wmi *asus,
2102 struct asus_rfkill *arfkill,
2103 const char *name, enum rfkill_type type, int dev_id)
2104{
2105 int result = asus_wmi_get_devstate_simple(asus, dev_id);
2106 struct rfkill **rfkill = &arfkill->rfkill;
2107
2108 if (result < 0)
2109 return result;
2110
2111 arfkill->dev_id = dev_id;
2112 arfkill->asus = asus;
2113
2114 if (dev_id == ASUS_WMI_DEVID_WLAN &&
2115 asus->driver->quirks->hotplug_wireless)
2116 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
2117 &asus_rfkill_wlan_ops, arfkill);
2118 else
2119 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
2120 &asus_rfkill_ops, arfkill);
2121
2122 if (!*rfkill)
2123 return -EINVAL;
2124
2125 if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
2126 (asus->driver->quirks->wapf > 0))
2127 rfkill_set_led_trigger_name(*rfkill, "asus-wlan");
2128
2129 rfkill_init_sw_state(*rfkill, !result);
2130 result = rfkill_register(*rfkill);
2131 if (result) {
2132 rfkill_destroy(*rfkill);
2133 *rfkill = NULL;
2134 return result;
2135 }
2136 return 0;
2137}
2138
2139static void asus_wmi_rfkill_exit(struct asus_wmi *asus)
2140{
2141 if (asus->driver->wlan_ctrl_by_user && ashs_present())
2142 return;
2143
2144 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
2145 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
2146 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
2147 if (asus->wlan.rfkill) {
2148 rfkill_unregister(asus->wlan.rfkill);
2149 rfkill_destroy(asus->wlan.rfkill);
2150 asus->wlan.rfkill = NULL;
2151 }
2152 /*
2153 * Refresh pci hotplug in case the rfkill state was changed after
2154 * asus_unregister_rfkill_notifier()
2155 */
2156 asus_rfkill_hotplug(asus);
2157 if (asus->hotplug_slot.ops)
2158 pci_hp_deregister(&asus->hotplug_slot);
2159 if (asus->hotplug_workqueue)
2160 destroy_workqueue(asus->hotplug_workqueue);
2161
2162 if (asus->bluetooth.rfkill) {
2163 rfkill_unregister(asus->bluetooth.rfkill);
2164 rfkill_destroy(asus->bluetooth.rfkill);
2165 asus->bluetooth.rfkill = NULL;
2166 }
2167 if (asus->wimax.rfkill) {
2168 rfkill_unregister(asus->wimax.rfkill);
2169 rfkill_destroy(asus->wimax.rfkill);
2170 asus->wimax.rfkill = NULL;
2171 }
2172 if (asus->wwan3g.rfkill) {
2173 rfkill_unregister(asus->wwan3g.rfkill);
2174 rfkill_destroy(asus->wwan3g.rfkill);
2175 asus->wwan3g.rfkill = NULL;
2176 }
2177 if (asus->gps.rfkill) {
2178 rfkill_unregister(asus->gps.rfkill);
2179 rfkill_destroy(asus->gps.rfkill);
2180 asus->gps.rfkill = NULL;
2181 }
2182 if (asus->uwb.rfkill) {
2183 rfkill_unregister(asus->uwb.rfkill);
2184 rfkill_destroy(asus->uwb.rfkill);
2185 asus->uwb.rfkill = NULL;
2186 }
2187}
2188
2189static int asus_wmi_rfkill_init(struct asus_wmi *asus)
2190{
2191 int result = 0;
2192
2193 mutex_init(&asus->hotplug_lock);
2194 mutex_init(&asus->wmi_lock);
2195
2196 result = asus_new_rfkill(asus, &asus->wlan, "asus-wlan",
2197 RFKILL_TYPE_WLAN, ASUS_WMI_DEVID_WLAN);
2198
2199 if (result && result != -ENODEV)
2200 goto exit;
2201
2202 result = asus_new_rfkill(asus, &asus->bluetooth,
2203 "asus-bluetooth", RFKILL_TYPE_BLUETOOTH,
2204 ASUS_WMI_DEVID_BLUETOOTH);
2205
2206 if (result && result != -ENODEV)
2207 goto exit;
2208
2209 result = asus_new_rfkill(asus, &asus->wimax, "asus-wimax",
2210 RFKILL_TYPE_WIMAX, ASUS_WMI_DEVID_WIMAX);
2211
2212 if (result && result != -ENODEV)
2213 goto exit;
2214
2215 result = asus_new_rfkill(asus, &asus->wwan3g, "asus-wwan3g",
2216 RFKILL_TYPE_WWAN, ASUS_WMI_DEVID_WWAN3G);
2217
2218 if (result && result != -ENODEV)
2219 goto exit;
2220
2221 result = asus_new_rfkill(asus, &asus->gps, "asus-gps",
2222 RFKILL_TYPE_GPS, ASUS_WMI_DEVID_GPS);
2223
2224 if (result && result != -ENODEV)
2225 goto exit;
2226
2227 result = asus_new_rfkill(asus, &asus->uwb, "asus-uwb",
2228 RFKILL_TYPE_UWB, ASUS_WMI_DEVID_UWB);
2229
2230 if (result && result != -ENODEV)
2231 goto exit;
2232
2233 if (!asus->driver->quirks->hotplug_wireless)
2234 goto exit;
2235
2236 result = asus_setup_pci_hotplug(asus);
2237 /*
2238 * If we get -EBUSY then something else is handling the PCI hotplug -
2239 * don't fail in this case
2240 */
2241 if (result == -EBUSY)
2242 result = 0;
2243
2244 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
2245 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
2246 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
2247 /*
2248 * Refresh pci hotplug in case the rfkill state was changed during
2249 * setup.
2250 */
2251 asus_rfkill_hotplug(asus);
2252
2253exit:
2254 if (result && result != -ENODEV)
2255 asus_wmi_rfkill_exit(asus);
2256
2257 if (result == -ENODEV)
2258 result = 0;
2259
2260 return result;
2261}
2262
2263/* Panel Overdrive ************************************************************/
2264static ssize_t panel_od_show(struct device *dev,
2265 struct device_attribute *attr, char *buf)
2266{
2267 struct asus_wmi *asus = dev_get_drvdata(dev);
2268 int result;
2269
2270 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_PANEL_OD);
2271 if (result < 0)
2272 return result;
2273
2274 return sysfs_emit(buf, "%d\n", result);
2275}
2276
2277static ssize_t panel_od_store(struct device *dev,
2278 struct device_attribute *attr,
2279 const char *buf, size_t count)
2280{
2281 int result, err;
2282 u32 overdrive;
2283
2284 struct asus_wmi *asus = dev_get_drvdata(dev);
2285
2286 result = kstrtou32(buf, 10, &overdrive);
2287 if (result)
2288 return result;
2289
2290 if (overdrive > 1)
2291 return -EINVAL;
2292
2293 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PANEL_OD, overdrive, &result);
2294
2295 if (err) {
2296 pr_warn("Failed to set panel overdrive: %d\n", err);
2297 return err;
2298 }
2299
2300 if (result > 1) {
2301 pr_warn("Failed to set panel overdrive (result): 0x%x\n", result);
2302 return -EIO;
2303 }
2304
2305 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "panel_od");
2306
2307 return count;
2308}
2309static DEVICE_ATTR_RW(panel_od);
2310
2311/* Bootup sound ***************************************************************/
2312
2313static ssize_t boot_sound_show(struct device *dev,
2314 struct device_attribute *attr, char *buf)
2315{
2316 struct asus_wmi *asus = dev_get_drvdata(dev);
2317 int result;
2318
2319 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_BOOT_SOUND);
2320 if (result < 0)
2321 return result;
2322
2323 return sysfs_emit(buf, "%d\n", result);
2324}
2325
2326static ssize_t boot_sound_store(struct device *dev,
2327 struct device_attribute *attr,
2328 const char *buf, size_t count)
2329{
2330 int result, err;
2331 u32 snd;
2332
2333 struct asus_wmi *asus = dev_get_drvdata(dev);
2334
2335 result = kstrtou32(buf, 10, &snd);
2336 if (result)
2337 return result;
2338
2339 if (snd > 1)
2340 return -EINVAL;
2341
2342 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BOOT_SOUND, snd, &result);
2343 if (err) {
2344 pr_warn("Failed to set boot sound: %d\n", err);
2345 return err;
2346 }
2347
2348 if (result > 1) {
2349 pr_warn("Failed to set panel boot sound (result): 0x%x\n", result);
2350 return -EIO;
2351 }
2352
2353 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "boot_sound");
2354
2355 return count;
2356}
2357static DEVICE_ATTR_RW(boot_sound);
2358
2359/* Mini-LED mode **************************************************************/
2360static ssize_t mini_led_mode_show(struct device *dev,
2361 struct device_attribute *attr, char *buf)
2362{
2363 struct asus_wmi *asus = dev_get_drvdata(dev);
2364 u32 value;
2365 int err;
2366
2367 err = asus_wmi_get_devstate(asus, asus->mini_led_dev_id, &value);
2368 if (err < 0)
2369 return err;
2370 value = value & ASUS_MINI_LED_MODE_MASK;
2371
2372 /*
2373 * Remap the mode values to match previous generation mini-led. The last gen
2374 * WMI 0 == off, while on this version WMI 2 ==off (flipped).
2375 */
2376 if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) {
2377 switch (value) {
2378 case ASUS_MINI_LED_2024_WEAK:
2379 value = ASUS_MINI_LED_ON;
2380 break;
2381 case ASUS_MINI_LED_2024_STRONG:
2382 value = ASUS_MINI_LED_STRONG_MODE;
2383 break;
2384 case ASUS_MINI_LED_2024_OFF:
2385 value = ASUS_MINI_LED_OFF;
2386 break;
2387 }
2388 }
2389
2390 return sysfs_emit(buf, "%d\n", value);
2391}
2392
2393static ssize_t mini_led_mode_store(struct device *dev,
2394 struct device_attribute *attr,
2395 const char *buf, size_t count)
2396{
2397 int result, err;
2398 u32 mode;
2399
2400 struct asus_wmi *asus = dev_get_drvdata(dev);
2401
2402 result = kstrtou32(buf, 10, &mode);
2403 if (result)
2404 return result;
2405
2406 if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE &&
2407 mode > ASUS_MINI_LED_ON)
2408 return -EINVAL;
2409 if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2 &&
2410 mode > ASUS_MINI_LED_STRONG_MODE)
2411 return -EINVAL;
2412
2413 /*
2414 * Remap the mode values so expected behaviour is the same as the last
2415 * generation of mini-LED with 0 == off, 1 == on.
2416 */
2417 if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) {
2418 switch (mode) {
2419 case ASUS_MINI_LED_OFF:
2420 mode = ASUS_MINI_LED_2024_OFF;
2421 break;
2422 case ASUS_MINI_LED_ON:
2423 mode = ASUS_MINI_LED_2024_WEAK;
2424 break;
2425 case ASUS_MINI_LED_STRONG_MODE:
2426 mode = ASUS_MINI_LED_2024_STRONG;
2427 break;
2428 }
2429 }
2430
2431 err = asus_wmi_set_devstate(asus->mini_led_dev_id, mode, &result);
2432 if (err) {
2433 pr_warn("Failed to set mini-LED: %d\n", err);
2434 return err;
2435 }
2436
2437 if (result > 1) {
2438 pr_warn("Failed to set mini-LED mode (result): 0x%x\n", result);
2439 return -EIO;
2440 }
2441
2442 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "mini_led_mode");
2443
2444 return count;
2445}
2446static DEVICE_ATTR_RW(mini_led_mode);
2447
2448static ssize_t available_mini_led_mode_show(struct device *dev,
2449 struct device_attribute *attr, char *buf)
2450{
2451 struct asus_wmi *asus = dev_get_drvdata(dev);
2452
2453 switch (asus->mini_led_dev_id) {
2454 case ASUS_WMI_DEVID_MINI_LED_MODE:
2455 return sysfs_emit(buf, "0 1\n");
2456 case ASUS_WMI_DEVID_MINI_LED_MODE2:
2457 return sysfs_emit(buf, "0 1 2\n");
2458 }
2459
2460 return sysfs_emit(buf, "0\n");
2461}
2462
2463static DEVICE_ATTR_RO(available_mini_led_mode);
2464
2465/* Quirks *********************************************************************/
2466
2467static void asus_wmi_set_xusb2pr(struct asus_wmi *asus)
2468{
2469 struct pci_dev *xhci_pdev;
2470 u32 orig_ports_available;
2471 u32 ports_available = asus->driver->quirks->xusb2pr;
2472
2473 xhci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
2474 PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI,
2475 NULL);
2476
2477 if (!xhci_pdev)
2478 return;
2479
2480 pci_read_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
2481 &orig_ports_available);
2482
2483 pci_write_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
2484 cpu_to_le32(ports_available));
2485
2486 pci_dev_put(xhci_pdev);
2487
2488 pr_info("set USB_INTEL_XUSB2PR old: 0x%04x, new: 0x%04x\n",
2489 orig_ports_available, ports_available);
2490}
2491
2492/*
2493 * Some devices dont support or have borcken get_als method
2494 * but still support set method.
2495 */
2496static void asus_wmi_set_als(void)
2497{
2498 asus_wmi_set_devstate(ASUS_WMI_DEVID_ALS_ENABLE, 1, NULL);
2499}
2500
2501/* Hwmon device ***************************************************************/
2502
2503static int asus_agfn_fan_speed_read(struct asus_wmi *asus, int fan,
2504 int *speed)
2505{
2506 struct agfn_fan_args args = {
2507 .agfn.len = sizeof(args),
2508 .agfn.mfun = ASUS_FAN_MFUN,
2509 .agfn.sfun = ASUS_FAN_SFUN_READ,
2510 .fan = fan,
2511 .speed = 0,
2512 };
2513 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
2514 int status;
2515
2516 if (fan != 1)
2517 return -EINVAL;
2518
2519 status = asus_wmi_evaluate_method_agfn(input);
2520
2521 if (status || args.agfn.err)
2522 return -ENXIO;
2523
2524 if (speed)
2525 *speed = args.speed;
2526
2527 return 0;
2528}
2529
2530static int asus_agfn_fan_speed_write(struct asus_wmi *asus, int fan,
2531 int *speed)
2532{
2533 struct agfn_fan_args args = {
2534 .agfn.len = sizeof(args),
2535 .agfn.mfun = ASUS_FAN_MFUN,
2536 .agfn.sfun = ASUS_FAN_SFUN_WRITE,
2537 .fan = fan,
2538 .speed = speed ? *speed : 0,
2539 };
2540 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
2541 int status;
2542
2543 /* 1: for setting 1st fan's speed 0: setting auto mode */
2544 if (fan != 1 && fan != 0)
2545 return -EINVAL;
2546
2547 status = asus_wmi_evaluate_method_agfn(input);
2548
2549 if (status || args.agfn.err)
2550 return -ENXIO;
2551
2552 if (speed && fan == 1)
2553 asus->agfn_pwm = *speed;
2554
2555 return 0;
2556}
2557
2558/*
2559 * Check if we can read the speed of one fan. If true we assume we can also
2560 * control it.
2561 */
2562static bool asus_wmi_has_agfn_fan(struct asus_wmi *asus)
2563{
2564 int status;
2565 int speed;
2566 u32 value;
2567
2568 status = asus_agfn_fan_speed_read(asus, 1, &speed);
2569 if (status != 0)
2570 return false;
2571
2572 status = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
2573 if (status != 0)
2574 return false;
2575
2576 /*
2577 * We need to find a better way, probably using sfun,
2578 * bits or spec ...
2579 * Currently we disable it if:
2580 * - ASUS_WMI_UNSUPPORTED_METHOD is returned
2581 * - reverved bits are non-zero
2582 * - sfun and presence bit are not set
2583 */
2584 return !(value == ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000
2585 || (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT)));
2586}
2587
2588static int asus_fan_set_auto(struct asus_wmi *asus)
2589{
2590 int status;
2591 u32 retval;
2592
2593 switch (asus->fan_type) {
2594 case FAN_TYPE_SPEC83:
2595 status = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL,
2596 0, &retval);
2597 if (status)
2598 return status;
2599
2600 if (retval != 1)
2601 return -EIO;
2602 break;
2603
2604 case FAN_TYPE_AGFN:
2605 status = asus_agfn_fan_speed_write(asus, 0, NULL);
2606 if (status)
2607 return -ENXIO;
2608 break;
2609
2610 default:
2611 return -ENXIO;
2612 }
2613
2614 /*
2615 * Modern models like the G713 also have GPU fan control (this is not AGFN)
2616 */
2617 if (asus->gpu_fan_type == FAN_TYPE_SPEC83) {
2618 status = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
2619 0, &retval);
2620 if (status)
2621 return status;
2622
2623 if (retval != 1)
2624 return -EIO;
2625 }
2626
2627 return 0;
2628}
2629
2630static ssize_t pwm1_show(struct device *dev,
2631 struct device_attribute *attr,
2632 char *buf)
2633{
2634 struct asus_wmi *asus = dev_get_drvdata(dev);
2635 int err;
2636 int value;
2637
2638 /* If we already set a value then just return it */
2639 if (asus->agfn_pwm >= 0)
2640 return sysfs_emit(buf, "%d\n", asus->agfn_pwm);
2641
2642 /*
2643 * If we haven't set already set a value through the AGFN interface,
2644 * we read a current value through the (now-deprecated) FAN_CTRL device.
2645 */
2646 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
2647 if (err < 0)
2648 return err;
2649
2650 value &= 0xFF;
2651
2652 if (value == 1) /* Low Speed */
2653 value = 85;
2654 else if (value == 2)
2655 value = 170;
2656 else if (value == 3)
2657 value = 255;
2658 else if (value) {
2659 pr_err("Unknown fan speed %#x\n", value);
2660 value = -1;
2661 }
2662
2663 return sysfs_emit(buf, "%d\n", value);
2664}
2665
2666static ssize_t pwm1_store(struct device *dev,
2667 struct device_attribute *attr,
2668 const char *buf, size_t count) {
2669 struct asus_wmi *asus = dev_get_drvdata(dev);
2670 int value;
2671 int state;
2672 int ret;
2673
2674 ret = kstrtouint(buf, 10, &value);
2675 if (ret)
2676 return ret;
2677
2678 value = clamp(value, 0, 255);
2679
2680 state = asus_agfn_fan_speed_write(asus, 1, &value);
2681 if (state)
2682 pr_warn("Setting fan speed failed: %d\n", state);
2683 else
2684 asus->fan_pwm_mode = ASUS_FAN_CTRL_MANUAL;
2685
2686 return count;
2687}
2688
2689static ssize_t fan1_input_show(struct device *dev,
2690 struct device_attribute *attr,
2691 char *buf)
2692{
2693 struct asus_wmi *asus = dev_get_drvdata(dev);
2694 int value;
2695 int ret;
2696
2697 switch (asus->fan_type) {
2698 case FAN_TYPE_SPEC83:
2699 ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL,
2700 &value);
2701 if (ret < 0)
2702 return ret;
2703
2704 value &= 0xffff;
2705 break;
2706
2707 case FAN_TYPE_AGFN:
2708 /* no speed readable on manual mode */
2709 if (asus->fan_pwm_mode == ASUS_FAN_CTRL_MANUAL)
2710 return -ENXIO;
2711
2712 ret = asus_agfn_fan_speed_read(asus, 1, &value);
2713 if (ret) {
2714 pr_warn("reading fan speed failed: %d\n", ret);
2715 return -ENXIO;
2716 }
2717 break;
2718
2719 default:
2720 return -ENXIO;
2721 }
2722
2723 return sysfs_emit(buf, "%d\n", value < 0 ? -1 : value * 100);
2724}
2725
2726static ssize_t pwm1_enable_show(struct device *dev,
2727 struct device_attribute *attr,
2728 char *buf)
2729{
2730 struct asus_wmi *asus = dev_get_drvdata(dev);
2731
2732 /*
2733 * Just read back the cached pwm mode.
2734 *
2735 * For the CPU_FAN device, the spec indicates that we should be
2736 * able to read the device status and consult bit 19 to see if we
2737 * are in Full On or Automatic mode. However, this does not work
2738 * in practice on X532FL at least (the bit is always 0) and there's
2739 * also nothing in the DSDT to indicate that this behaviour exists.
2740 */
2741 return sysfs_emit(buf, "%d\n", asus->fan_pwm_mode);
2742}
2743
2744static ssize_t pwm1_enable_store(struct device *dev,
2745 struct device_attribute *attr,
2746 const char *buf, size_t count)
2747{
2748 struct asus_wmi *asus = dev_get_drvdata(dev);
2749 int status = 0;
2750 int state;
2751 int value;
2752 int ret;
2753 u32 retval;
2754
2755 ret = kstrtouint(buf, 10, &state);
2756 if (ret)
2757 return ret;
2758
2759 if (asus->fan_type == FAN_TYPE_SPEC83) {
2760 switch (state) { /* standard documented hwmon values */
2761 case ASUS_FAN_CTRL_FULLSPEED:
2762 value = 1;
2763 break;
2764 case ASUS_FAN_CTRL_AUTO:
2765 value = 0;
2766 break;
2767 default:
2768 return -EINVAL;
2769 }
2770
2771 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL,
2772 value, &retval);
2773 if (ret)
2774 return ret;
2775
2776 if (retval != 1)
2777 return -EIO;
2778 } else if (asus->fan_type == FAN_TYPE_AGFN) {
2779 switch (state) {
2780 case ASUS_FAN_CTRL_MANUAL:
2781 break;
2782
2783 case ASUS_FAN_CTRL_AUTO:
2784 status = asus_fan_set_auto(asus);
2785 if (status)
2786 return status;
2787 break;
2788
2789 default:
2790 return -EINVAL;
2791 }
2792 }
2793
2794 asus->fan_pwm_mode = state;
2795
2796 /* Must set to disabled if mode is toggled */
2797 if (asus->cpu_fan_curve_available)
2798 asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false;
2799 if (asus->gpu_fan_curve_available)
2800 asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false;
2801 if (asus->mid_fan_curve_available)
2802 asus->custom_fan_curves[FAN_CURVE_DEV_MID].enabled = false;
2803
2804 return count;
2805}
2806
2807static ssize_t asus_hwmon_temp1(struct device *dev,
2808 struct device_attribute *attr,
2809 char *buf)
2810{
2811 struct asus_wmi *asus = dev_get_drvdata(dev);
2812 u32 value;
2813 int err;
2814
2815 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_THERMAL_CTRL, &value);
2816 if (err < 0)
2817 return err;
2818
2819 return sysfs_emit(buf, "%ld\n",
2820 deci_kelvin_to_millicelsius(value & 0xFFFF));
2821}
2822
2823/* GPU fan on modern ROG laptops */
2824static ssize_t fan2_input_show(struct device *dev,
2825 struct device_attribute *attr,
2826 char *buf)
2827{
2828 struct asus_wmi *asus = dev_get_drvdata(dev);
2829 int value;
2830 int ret;
2831
2832 ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL, &value);
2833 if (ret < 0)
2834 return ret;
2835
2836 value &= 0xffff;
2837
2838 return sysfs_emit(buf, "%d\n", value * 100);
2839}
2840
2841/* Middle/Center fan on modern ROG laptops */
2842static ssize_t fan3_input_show(struct device *dev,
2843 struct device_attribute *attr,
2844 char *buf)
2845{
2846 struct asus_wmi *asus = dev_get_drvdata(dev);
2847 int value;
2848 int ret;
2849
2850 ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_MID_FAN_CTRL, &value);
2851 if (ret < 0)
2852 return ret;
2853
2854 value &= 0xffff;
2855
2856 return sysfs_emit(buf, "%d\n", value * 100);
2857}
2858
2859static ssize_t pwm2_enable_show(struct device *dev,
2860 struct device_attribute *attr,
2861 char *buf)
2862{
2863 struct asus_wmi *asus = dev_get_drvdata(dev);
2864
2865 return sysfs_emit(buf, "%d\n", asus->gpu_fan_pwm_mode);
2866}
2867
2868static ssize_t pwm2_enable_store(struct device *dev,
2869 struct device_attribute *attr,
2870 const char *buf, size_t count)
2871{
2872 struct asus_wmi *asus = dev_get_drvdata(dev);
2873 int state;
2874 int value;
2875 int ret;
2876 u32 retval;
2877
2878 ret = kstrtouint(buf, 10, &state);
2879 if (ret)
2880 return ret;
2881
2882 switch (state) { /* standard documented hwmon values */
2883 case ASUS_FAN_CTRL_FULLSPEED:
2884 value = 1;
2885 break;
2886 case ASUS_FAN_CTRL_AUTO:
2887 value = 0;
2888 break;
2889 default:
2890 return -EINVAL;
2891 }
2892
2893 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
2894 value, &retval);
2895 if (ret)
2896 return ret;
2897
2898 if (retval != 1)
2899 return -EIO;
2900
2901 asus->gpu_fan_pwm_mode = state;
2902 return count;
2903}
2904
2905static ssize_t pwm3_enable_show(struct device *dev,
2906 struct device_attribute *attr,
2907 char *buf)
2908{
2909 struct asus_wmi *asus = dev_get_drvdata(dev);
2910
2911 return sysfs_emit(buf, "%d\n", asus->mid_fan_pwm_mode);
2912}
2913
2914static ssize_t pwm3_enable_store(struct device *dev,
2915 struct device_attribute *attr,
2916 const char *buf, size_t count)
2917{
2918 struct asus_wmi *asus = dev_get_drvdata(dev);
2919 int state;
2920 int value;
2921 int ret;
2922 u32 retval;
2923
2924 ret = kstrtouint(buf, 10, &state);
2925 if (ret)
2926 return ret;
2927
2928 switch (state) { /* standard documented hwmon values */
2929 case ASUS_FAN_CTRL_FULLSPEED:
2930 value = 1;
2931 break;
2932 case ASUS_FAN_CTRL_AUTO:
2933 value = 0;
2934 break;
2935 default:
2936 return -EINVAL;
2937 }
2938
2939 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_MID_FAN_CTRL,
2940 value, &retval);
2941 if (ret)
2942 return ret;
2943
2944 if (retval != 1)
2945 return -EIO;
2946
2947 asus->mid_fan_pwm_mode = state;
2948 return count;
2949}
2950
2951/* Fan1 */
2952static DEVICE_ATTR_RW(pwm1);
2953static DEVICE_ATTR_RW(pwm1_enable);
2954static DEVICE_ATTR_RO(fan1_input);
2955static DEVICE_STRING_ATTR_RO(fan1_label, 0444, ASUS_FAN_DESC);
2956
2957/* Fan2 - GPU fan */
2958static DEVICE_ATTR_RW(pwm2_enable);
2959static DEVICE_ATTR_RO(fan2_input);
2960static DEVICE_STRING_ATTR_RO(fan2_label, 0444, ASUS_GPU_FAN_DESC);
2961/* Fan3 - Middle/center fan */
2962static DEVICE_ATTR_RW(pwm3_enable);
2963static DEVICE_ATTR_RO(fan3_input);
2964static DEVICE_STRING_ATTR_RO(fan3_label, 0444, ASUS_MID_FAN_DESC);
2965
2966/* Temperature */
2967static DEVICE_ATTR(temp1_input, S_IRUGO, asus_hwmon_temp1, NULL);
2968
2969static struct attribute *hwmon_attributes[] = {
2970 &dev_attr_pwm1.attr,
2971 &dev_attr_pwm1_enable.attr,
2972 &dev_attr_pwm2_enable.attr,
2973 &dev_attr_pwm3_enable.attr,
2974 &dev_attr_fan1_input.attr,
2975 &dev_attr_fan1_label.attr.attr,
2976 &dev_attr_fan2_input.attr,
2977 &dev_attr_fan2_label.attr.attr,
2978 &dev_attr_fan3_input.attr,
2979 &dev_attr_fan3_label.attr.attr,
2980
2981 &dev_attr_temp1_input.attr,
2982 NULL
2983};
2984
2985static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
2986 struct attribute *attr, int idx)
2987{
2988 struct device *dev = kobj_to_dev(kobj);
2989 struct asus_wmi *asus = dev_get_drvdata(dev->parent);
2990 u32 value = ASUS_WMI_UNSUPPORTED_METHOD;
2991
2992 if (attr == &dev_attr_pwm1.attr) {
2993 if (asus->fan_type != FAN_TYPE_AGFN)
2994 return 0;
2995 } else if (attr == &dev_attr_fan1_input.attr
2996 || attr == &dev_attr_fan1_label.attr.attr
2997 || attr == &dev_attr_pwm1_enable.attr) {
2998 if (asus->fan_type == FAN_TYPE_NONE)
2999 return 0;
3000 } else if (attr == &dev_attr_fan2_input.attr
3001 || attr == &dev_attr_fan2_label.attr.attr
3002 || attr == &dev_attr_pwm2_enable.attr) {
3003 if (asus->gpu_fan_type == FAN_TYPE_NONE)
3004 return 0;
3005 } else if (attr == &dev_attr_fan3_input.attr
3006 || attr == &dev_attr_fan3_label.attr.attr
3007 || attr == &dev_attr_pwm3_enable.attr) {
3008 if (asus->mid_fan_type == FAN_TYPE_NONE)
3009 return 0;
3010 } else if (attr == &dev_attr_temp1_input.attr) {
3011 int err = asus_wmi_get_devstate(asus,
3012 ASUS_WMI_DEVID_THERMAL_CTRL,
3013 &value);
3014
3015 if (err < 0)
3016 return 0; /* can't return negative here */
3017
3018 /*
3019 * If the temperature value in deci-Kelvin is near the absolute
3020 * zero temperature, something is clearly wrong
3021 */
3022 if (value == 0 || value == 1)
3023 return 0;
3024 }
3025
3026 return attr->mode;
3027}
3028
3029static const struct attribute_group hwmon_attribute_group = {
3030 .is_visible = asus_hwmon_sysfs_is_visible,
3031 .attrs = hwmon_attributes
3032};
3033__ATTRIBUTE_GROUPS(hwmon_attribute);
3034
3035static int asus_wmi_hwmon_init(struct asus_wmi *asus)
3036{
3037 struct device *dev = &asus->platform_device->dev;
3038 struct device *hwmon;
3039
3040 hwmon = devm_hwmon_device_register_with_groups(dev, "asus", asus,
3041 hwmon_attribute_groups);
3042
3043 if (IS_ERR(hwmon)) {
3044 pr_err("Could not register asus hwmon device\n");
3045 return PTR_ERR(hwmon);
3046 }
3047 return 0;
3048}
3049
3050static int asus_wmi_fan_init(struct asus_wmi *asus)
3051{
3052 asus->gpu_fan_type = FAN_TYPE_NONE;
3053 asus->mid_fan_type = FAN_TYPE_NONE;
3054 asus->fan_type = FAN_TYPE_NONE;
3055 asus->agfn_pwm = -1;
3056
3057 if (asus->driver->quirks->wmi_ignore_fan)
3058 asus->fan_type = FAN_TYPE_NONE;
3059 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL))
3060 asus->fan_type = FAN_TYPE_SPEC83;
3061 else if (asus_wmi_has_agfn_fan(asus))
3062 asus->fan_type = FAN_TYPE_AGFN;
3063
3064 /* Modern models like G713 also have GPU fan control */
3065 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL))
3066 asus->gpu_fan_type = FAN_TYPE_SPEC83;
3067
3068 /* Some models also have a center/middle fan */
3069 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MID_FAN_CTRL))
3070 asus->mid_fan_type = FAN_TYPE_SPEC83;
3071
3072 if (asus->fan_type == FAN_TYPE_NONE)
3073 return -ENODEV;
3074
3075 asus_fan_set_auto(asus);
3076 asus->fan_pwm_mode = ASUS_FAN_CTRL_AUTO;
3077 return 0;
3078}
3079
3080/* Fan mode *******************************************************************/
3081
3082static int fan_boost_mode_check_present(struct asus_wmi *asus)
3083{
3084 u32 result;
3085 int err;
3086
3087 asus->fan_boost_mode_available = false;
3088
3089 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_BOOST_MODE,
3090 &result);
3091 if (err) {
3092 if (err == -ENODEV)
3093 return 0;
3094 else
3095 return err;
3096 }
3097
3098 if ((result & ASUS_WMI_DSTS_PRESENCE_BIT) &&
3099 (result & ASUS_FAN_BOOST_MODES_MASK)) {
3100 asus->fan_boost_mode_available = true;
3101 asus->fan_boost_mode_mask = result & ASUS_FAN_BOOST_MODES_MASK;
3102 }
3103
3104 return 0;
3105}
3106
3107static int fan_boost_mode_write(struct asus_wmi *asus)
3108{
3109 u32 retval;
3110 u8 value;
3111 int err;
3112
3113 value = asus->fan_boost_mode;
3114
3115 pr_info("Set fan boost mode: %u\n", value);
3116 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_FAN_BOOST_MODE, value,
3117 &retval);
3118
3119 sysfs_notify(&asus->platform_device->dev.kobj, NULL,
3120 "fan_boost_mode");
3121
3122 if (err) {
3123 pr_warn("Failed to set fan boost mode: %d\n", err);
3124 return err;
3125 }
3126
3127 if (retval != 1) {
3128 pr_warn("Failed to set fan boost mode (retval): 0x%x\n",
3129 retval);
3130 return -EIO;
3131 }
3132
3133 return 0;
3134}
3135
3136static int fan_boost_mode_switch_next(struct asus_wmi *asus)
3137{
3138 u8 mask = asus->fan_boost_mode_mask;
3139
3140 if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_NORMAL) {
3141 if (mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK)
3142 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_OVERBOOST;
3143 else if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK)
3144 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT;
3145 } else if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) {
3146 if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK)
3147 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT;
3148 else
3149 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL;
3150 } else {
3151 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL;
3152 }
3153
3154 return fan_boost_mode_write(asus);
3155}
3156
3157static ssize_t fan_boost_mode_show(struct device *dev,
3158 struct device_attribute *attr, char *buf)
3159{
3160 struct asus_wmi *asus = dev_get_drvdata(dev);
3161
3162 return sysfs_emit(buf, "%d\n", asus->fan_boost_mode);
3163}
3164
3165static ssize_t fan_boost_mode_store(struct device *dev,
3166 struct device_attribute *attr,
3167 const char *buf, size_t count)
3168{
3169 struct asus_wmi *asus = dev_get_drvdata(dev);
3170 u8 mask = asus->fan_boost_mode_mask;
3171 u8 new_mode;
3172 int result;
3173
3174 result = kstrtou8(buf, 10, &new_mode);
3175 if (result < 0) {
3176 pr_warn("Trying to store invalid value\n");
3177 return result;
3178 }
3179
3180 if (new_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) {
3181 if (!(mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK))
3182 return -EINVAL;
3183 } else if (new_mode == ASUS_FAN_BOOST_MODE_SILENT) {
3184 if (!(mask & ASUS_FAN_BOOST_MODE_SILENT_MASK))
3185 return -EINVAL;
3186 } else if (new_mode != ASUS_FAN_BOOST_MODE_NORMAL) {
3187 return -EINVAL;
3188 }
3189
3190 asus->fan_boost_mode = new_mode;
3191 fan_boost_mode_write(asus);
3192
3193 return count;
3194}
3195
3196// Fan boost mode: 0 - normal, 1 - overboost, 2 - silent
3197static DEVICE_ATTR_RW(fan_boost_mode);
3198
3199/* Custom fan curves **********************************************************/
3200
3201static void fan_curve_copy_from_buf(struct fan_curve_data *data, u8 *buf)
3202{
3203 int i;
3204
3205 for (i = 0; i < FAN_CURVE_POINTS; i++) {
3206 data->temps[i] = buf[i];
3207 }
3208
3209 for (i = 0; i < FAN_CURVE_POINTS; i++) {
3210 data->percents[i] =
3211 255 * buf[i + FAN_CURVE_POINTS] / 100;
3212 }
3213}
3214
3215static int fan_curve_get_factory_default(struct asus_wmi *asus, u32 fan_dev)
3216{
3217 struct fan_curve_data *curves;
3218 u8 buf[FAN_CURVE_BUF_LEN];
3219 int err, fan_idx;
3220 u8 mode = 0;
3221
3222 if (asus->throttle_thermal_policy_dev)
3223 mode = asus->throttle_thermal_policy_mode;
3224 /* DEVID_<C/G>PU_FAN_CURVE is switched for OVERBOOST vs SILENT */
3225 if (mode == 2)
3226 mode = 1;
3227 else if (mode == 1)
3228 mode = 2;
3229
3230 err = asus_wmi_evaluate_method_buf(asus->dsts_id, fan_dev, mode, buf,
3231 FAN_CURVE_BUF_LEN);
3232 if (err) {
3233 pr_warn("%s (0x%08x) failed: %d\n", __func__, fan_dev, err);
3234 return err;
3235 }
3236
3237 fan_idx = FAN_CURVE_DEV_CPU;
3238 if (fan_dev == ASUS_WMI_DEVID_GPU_FAN_CURVE)
3239 fan_idx = FAN_CURVE_DEV_GPU;
3240
3241 if (fan_dev == ASUS_WMI_DEVID_MID_FAN_CURVE)
3242 fan_idx = FAN_CURVE_DEV_MID;
3243
3244 curves = &asus->custom_fan_curves[fan_idx];
3245 curves->device_id = fan_dev;
3246
3247 fan_curve_copy_from_buf(curves, buf);
3248 return 0;
3249}
3250
3251/* Check if capability exists, and populate defaults */
3252static int fan_curve_check_present(struct asus_wmi *asus, bool *available,
3253 u32 fan_dev)
3254{
3255 int err;
3256
3257 *available = false;
3258
3259 if (asus->fan_type == FAN_TYPE_NONE)
3260 return 0;
3261
3262 err = fan_curve_get_factory_default(asus, fan_dev);
3263 if (err) {
3264 return 0;
3265 }
3266
3267 *available = true;
3268 return 0;
3269}
3270
3271/* Determine which fan the attribute is for if SENSOR_ATTR */
3272static struct fan_curve_data *fan_curve_attr_select(struct asus_wmi *asus,
3273 struct device_attribute *attr)
3274{
3275 int index = to_sensor_dev_attr(attr)->index;
3276
3277 return &asus->custom_fan_curves[index];
3278}
3279
3280/* Determine which fan the attribute is for if SENSOR_ATTR_2 */
3281static struct fan_curve_data *fan_curve_attr_2_select(struct asus_wmi *asus,
3282 struct device_attribute *attr)
3283{
3284 int nr = to_sensor_dev_attr_2(attr)->nr;
3285
3286 return &asus->custom_fan_curves[nr & ~FAN_CURVE_PWM_MASK];
3287}
3288
3289static ssize_t fan_curve_show(struct device *dev,
3290 struct device_attribute *attr, char *buf)
3291{
3292 struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr);
3293 struct asus_wmi *asus = dev_get_drvdata(dev);
3294 struct fan_curve_data *data;
3295 int value, pwm, index;
3296
3297 data = fan_curve_attr_2_select(asus, attr);
3298 pwm = dev_attr->nr & FAN_CURVE_PWM_MASK;
3299 index = dev_attr->index;
3300
3301 if (pwm)
3302 value = data->percents[index];
3303 else
3304 value = data->temps[index];
3305
3306 return sysfs_emit(buf, "%d\n", value);
3307}
3308
3309/*
3310 * "fan_dev" is the related WMI method such as ASUS_WMI_DEVID_CPU_FAN_CURVE.
3311 */
3312static int fan_curve_write(struct asus_wmi *asus,
3313 struct fan_curve_data *data)
3314{
3315 u32 arg1 = 0, arg2 = 0, arg3 = 0, arg4 = 0;
3316 u8 *percents = data->percents;
3317 u8 *temps = data->temps;
3318 int ret, i, shift = 0;
3319
3320 if (!data->enabled)
3321 return 0;
3322
3323 for (i = 0; i < FAN_CURVE_POINTS / 2; i++) {
3324 arg1 += (temps[i]) << shift;
3325 arg2 += (temps[i + 4]) << shift;
3326 /* Scale to percentage for device */
3327 arg3 += (100 * percents[i] / 255) << shift;
3328 arg4 += (100 * percents[i + 4] / 255) << shift;
3329 shift += 8;
3330 }
3331
3332 return asus_wmi_evaluate_method5(ASUS_WMI_METHODID_DEVS,
3333 data->device_id,
3334 arg1, arg2, arg3, arg4, &ret);
3335}
3336
3337static ssize_t fan_curve_store(struct device *dev,
3338 struct device_attribute *attr, const char *buf,
3339 size_t count)
3340{
3341 struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr);
3342 struct asus_wmi *asus = dev_get_drvdata(dev);
3343 struct fan_curve_data *data;
3344 int err, pwm, index;
3345 u8 value;
3346
3347 data = fan_curve_attr_2_select(asus, attr);
3348 pwm = dev_attr->nr & FAN_CURVE_PWM_MASK;
3349 index = dev_attr->index;
3350
3351 err = kstrtou8(buf, 10, &value);
3352 if (err < 0)
3353 return err;
3354
3355 if (pwm)
3356 data->percents[index] = value;
3357 else
3358 data->temps[index] = value;
3359
3360 /*
3361 * Mark as disabled so the user has to explicitly enable to apply a
3362 * changed fan curve. This prevents potential lockups from writing out
3363 * many changes as one-write-per-change.
3364 */
3365 data->enabled = false;
3366
3367 return count;
3368}
3369
3370static ssize_t fan_curve_enable_show(struct device *dev,
3371 struct device_attribute *attr, char *buf)
3372{
3373 struct asus_wmi *asus = dev_get_drvdata(dev);
3374 struct fan_curve_data *data;
3375 int out = 2;
3376
3377 data = fan_curve_attr_select(asus, attr);
3378
3379 if (data->enabled)
3380 out = 1;
3381
3382 return sysfs_emit(buf, "%d\n", out);
3383}
3384
3385static ssize_t fan_curve_enable_store(struct device *dev,
3386 struct device_attribute *attr,
3387 const char *buf, size_t count)
3388{
3389 struct asus_wmi *asus = dev_get_drvdata(dev);
3390 struct fan_curve_data *data;
3391 int value, err;
3392
3393 data = fan_curve_attr_select(asus, attr);
3394
3395 err = kstrtoint(buf, 10, &value);
3396 if (err < 0)
3397 return err;
3398
3399 switch (value) {
3400 case 1:
3401 data->enabled = true;
3402 break;
3403 case 2:
3404 data->enabled = false;
3405 break;
3406 /*
3407 * Auto + reset the fan curve data to defaults. Make it an explicit
3408 * option so that users don't accidentally overwrite a set fan curve.
3409 */
3410 case 3:
3411 err = fan_curve_get_factory_default(asus, data->device_id);
3412 if (err)
3413 return err;
3414 data->enabled = false;
3415 break;
3416 default:
3417 return -EINVAL;
3418 }
3419
3420 if (data->enabled) {
3421 err = fan_curve_write(asus, data);
3422 if (err)
3423 return err;
3424 } else {
3425 /*
3426 * For machines with throttle this is the only way to reset fans
3427 * to default mode of operation (does not erase curve data).
3428 */
3429 if (asus->throttle_thermal_policy_dev) {
3430 err = throttle_thermal_policy_write(asus);
3431 if (err)
3432 return err;
3433 /* Similar is true for laptops with this fan */
3434 } else if (asus->fan_type == FAN_TYPE_SPEC83) {
3435 err = asus_fan_set_auto(asus);
3436 if (err)
3437 return err;
3438 } else {
3439 /* Safeguard against fautly ACPI tables */
3440 err = fan_curve_get_factory_default(asus, data->device_id);
3441 if (err)
3442 return err;
3443 err = fan_curve_write(asus, data);
3444 if (err)
3445 return err;
3446 }
3447 }
3448 return count;
3449}
3450
3451/* CPU */
3452static SENSOR_DEVICE_ATTR_RW(pwm1_enable, fan_curve_enable, FAN_CURVE_DEV_CPU);
3453static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_temp, fan_curve,
3454 FAN_CURVE_DEV_CPU, 0);
3455static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_temp, fan_curve,
3456 FAN_CURVE_DEV_CPU, 1);
3457static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_temp, fan_curve,
3458 FAN_CURVE_DEV_CPU, 2);
3459static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_temp, fan_curve,
3460 FAN_CURVE_DEV_CPU, 3);
3461static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_temp, fan_curve,
3462 FAN_CURVE_DEV_CPU, 4);
3463static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_temp, fan_curve,
3464 FAN_CURVE_DEV_CPU, 5);
3465static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_temp, fan_curve,
3466 FAN_CURVE_DEV_CPU, 6);
3467static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_temp, fan_curve,
3468 FAN_CURVE_DEV_CPU, 7);
3469
3470static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_pwm, fan_curve,
3471 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 0);
3472static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_pwm, fan_curve,
3473 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 1);
3474static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_pwm, fan_curve,
3475 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 2);
3476static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_pwm, fan_curve,
3477 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 3);
3478static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_pwm, fan_curve,
3479 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 4);
3480static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_pwm, fan_curve,
3481 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 5);
3482static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_pwm, fan_curve,
3483 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 6);
3484static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_pwm, fan_curve,
3485 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 7);
3486
3487/* GPU */
3488static SENSOR_DEVICE_ATTR_RW(pwm2_enable, fan_curve_enable, FAN_CURVE_DEV_GPU);
3489static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_temp, fan_curve,
3490 FAN_CURVE_DEV_GPU, 0);
3491static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_temp, fan_curve,
3492 FAN_CURVE_DEV_GPU, 1);
3493static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_temp, fan_curve,
3494 FAN_CURVE_DEV_GPU, 2);
3495static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_temp, fan_curve,
3496 FAN_CURVE_DEV_GPU, 3);
3497static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_temp, fan_curve,
3498 FAN_CURVE_DEV_GPU, 4);
3499static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_temp, fan_curve,
3500 FAN_CURVE_DEV_GPU, 5);
3501static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_temp, fan_curve,
3502 FAN_CURVE_DEV_GPU, 6);
3503static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_temp, fan_curve,
3504 FAN_CURVE_DEV_GPU, 7);
3505
3506static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_pwm, fan_curve,
3507 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 0);
3508static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_pwm, fan_curve,
3509 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 1);
3510static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_pwm, fan_curve,
3511 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 2);
3512static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_pwm, fan_curve,
3513 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 3);
3514static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_pwm, fan_curve,
3515 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 4);
3516static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_pwm, fan_curve,
3517 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 5);
3518static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_pwm, fan_curve,
3519 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 6);
3520static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_pwm, fan_curve,
3521 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 7);
3522
3523/* MID */
3524static SENSOR_DEVICE_ATTR_RW(pwm3_enable, fan_curve_enable, FAN_CURVE_DEV_MID);
3525static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point1_temp, fan_curve,
3526 FAN_CURVE_DEV_MID, 0);
3527static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point2_temp, fan_curve,
3528 FAN_CURVE_DEV_MID, 1);
3529static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point3_temp, fan_curve,
3530 FAN_CURVE_DEV_MID, 2);
3531static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point4_temp, fan_curve,
3532 FAN_CURVE_DEV_MID, 3);
3533static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point5_temp, fan_curve,
3534 FAN_CURVE_DEV_MID, 4);
3535static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point6_temp, fan_curve,
3536 FAN_CURVE_DEV_MID, 5);
3537static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point7_temp, fan_curve,
3538 FAN_CURVE_DEV_MID, 6);
3539static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point8_temp, fan_curve,
3540 FAN_CURVE_DEV_MID, 7);
3541
3542static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point1_pwm, fan_curve,
3543 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 0);
3544static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point2_pwm, fan_curve,
3545 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 1);
3546static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point3_pwm, fan_curve,
3547 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 2);
3548static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point4_pwm, fan_curve,
3549 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 3);
3550static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point5_pwm, fan_curve,
3551 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 4);
3552static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point6_pwm, fan_curve,
3553 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 5);
3554static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point7_pwm, fan_curve,
3555 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 6);
3556static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point8_pwm, fan_curve,
3557 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 7);
3558
3559static struct attribute *asus_fan_curve_attr[] = {
3560 /* CPU */
3561 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
3562 &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
3563 &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
3564 &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
3565 &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
3566 &sensor_dev_attr_pwm1_auto_point5_temp.dev_attr.attr,
3567 &sensor_dev_attr_pwm1_auto_point6_temp.dev_attr.attr,
3568 &sensor_dev_attr_pwm1_auto_point7_temp.dev_attr.attr,
3569 &sensor_dev_attr_pwm1_auto_point8_temp.dev_attr.attr,
3570 &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
3571 &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
3572 &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
3573 &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
3574 &sensor_dev_attr_pwm1_auto_point5_pwm.dev_attr.attr,
3575 &sensor_dev_attr_pwm1_auto_point6_pwm.dev_attr.attr,
3576 &sensor_dev_attr_pwm1_auto_point7_pwm.dev_attr.attr,
3577 &sensor_dev_attr_pwm1_auto_point8_pwm.dev_attr.attr,
3578 /* GPU */
3579 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
3580 &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
3581 &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
3582 &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
3583 &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
3584 &sensor_dev_attr_pwm2_auto_point5_temp.dev_attr.attr,
3585 &sensor_dev_attr_pwm2_auto_point6_temp.dev_attr.attr,
3586 &sensor_dev_attr_pwm2_auto_point7_temp.dev_attr.attr,
3587 &sensor_dev_attr_pwm2_auto_point8_temp.dev_attr.attr,
3588 &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
3589 &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
3590 &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
3591 &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,
3592 &sensor_dev_attr_pwm2_auto_point5_pwm.dev_attr.attr,
3593 &sensor_dev_attr_pwm2_auto_point6_pwm.dev_attr.attr,
3594 &sensor_dev_attr_pwm2_auto_point7_pwm.dev_attr.attr,
3595 &sensor_dev_attr_pwm2_auto_point8_pwm.dev_attr.attr,
3596 /* MID */
3597 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
3598 &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
3599 &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
3600 &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
3601 &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr,
3602 &sensor_dev_attr_pwm3_auto_point5_temp.dev_attr.attr,
3603 &sensor_dev_attr_pwm3_auto_point6_temp.dev_attr.attr,
3604 &sensor_dev_attr_pwm3_auto_point7_temp.dev_attr.attr,
3605 &sensor_dev_attr_pwm3_auto_point8_temp.dev_attr.attr,
3606 &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
3607 &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
3608 &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr,
3609 &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr,
3610 &sensor_dev_attr_pwm3_auto_point5_pwm.dev_attr.attr,
3611 &sensor_dev_attr_pwm3_auto_point6_pwm.dev_attr.attr,
3612 &sensor_dev_attr_pwm3_auto_point7_pwm.dev_attr.attr,
3613 &sensor_dev_attr_pwm3_auto_point8_pwm.dev_attr.attr,
3614 NULL
3615};
3616
3617static umode_t asus_fan_curve_is_visible(struct kobject *kobj,
3618 struct attribute *attr, int idx)
3619{
3620 struct device *dev = kobj_to_dev(kobj);
3621 struct asus_wmi *asus = dev_get_drvdata(dev->parent);
3622
3623 /*
3624 * Check the char instead of casting attr as there are two attr types
3625 * involved here (attr1 and attr2)
3626 */
3627 if (asus->cpu_fan_curve_available && attr->name[3] == '1')
3628 return 0644;
3629
3630 if (asus->gpu_fan_curve_available && attr->name[3] == '2')
3631 return 0644;
3632
3633 if (asus->mid_fan_curve_available && attr->name[3] == '3')
3634 return 0644;
3635
3636 return 0;
3637}
3638
3639static const struct attribute_group asus_fan_curve_attr_group = {
3640 .is_visible = asus_fan_curve_is_visible,
3641 .attrs = asus_fan_curve_attr,
3642};
3643__ATTRIBUTE_GROUPS(asus_fan_curve_attr);
3644
3645/*
3646 * Must be initialised after throttle_thermal_policy_dev is set as
3647 * we check the status of throttle_thermal_policy_dev during init.
3648 */
3649static int asus_wmi_custom_fan_curve_init(struct asus_wmi *asus)
3650{
3651 struct device *dev = &asus->platform_device->dev;
3652 struct device *hwmon;
3653 int err;
3654
3655 err = fan_curve_check_present(asus, &asus->cpu_fan_curve_available,
3656 ASUS_WMI_DEVID_CPU_FAN_CURVE);
3657 if (err) {
3658 pr_debug("%s, checked 0x%08x, failed: %d\n",
3659 __func__, ASUS_WMI_DEVID_CPU_FAN_CURVE, err);
3660 return err;
3661 }
3662
3663 err = fan_curve_check_present(asus, &asus->gpu_fan_curve_available,
3664 ASUS_WMI_DEVID_GPU_FAN_CURVE);
3665 if (err) {
3666 pr_debug("%s, checked 0x%08x, failed: %d\n",
3667 __func__, ASUS_WMI_DEVID_GPU_FAN_CURVE, err);
3668 return err;
3669 }
3670
3671 err = fan_curve_check_present(asus, &asus->mid_fan_curve_available,
3672 ASUS_WMI_DEVID_MID_FAN_CURVE);
3673 if (err) {
3674 pr_debug("%s, checked 0x%08x, failed: %d\n",
3675 __func__, ASUS_WMI_DEVID_MID_FAN_CURVE, err);
3676 return err;
3677 }
3678
3679 if (!asus->cpu_fan_curve_available
3680 && !asus->gpu_fan_curve_available
3681 && !asus->mid_fan_curve_available)
3682 return 0;
3683
3684 hwmon = devm_hwmon_device_register_with_groups(
3685 dev, "asus_custom_fan_curve", asus, asus_fan_curve_attr_groups);
3686
3687 if (IS_ERR(hwmon)) {
3688 dev_err(dev,
3689 "Could not register asus_custom_fan_curve device\n");
3690 return PTR_ERR(hwmon);
3691 }
3692
3693 return 0;
3694}
3695
3696/* Throttle thermal policy ****************************************************/
3697static int throttle_thermal_policy_write(struct asus_wmi *asus)
3698{
3699 u8 value;
3700 int err;
3701
3702 if (asus->throttle_thermal_policy_dev == ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY_VIVO) {
3703 switch (asus->throttle_thermal_policy_mode) {
3704 case ASUS_THROTTLE_THERMAL_POLICY_DEFAULT:
3705 value = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT_VIVO;
3706 break;
3707 case ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST:
3708 value = ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST_VIVO;
3709 break;
3710 case ASUS_THROTTLE_THERMAL_POLICY_SILENT:
3711 value = ASUS_THROTTLE_THERMAL_POLICY_SILENT_VIVO;
3712 break;
3713 default:
3714 return -EINVAL;
3715 }
3716 } else {
3717 value = asus->throttle_thermal_policy_mode;
3718 }
3719
3720 /* Some machines do not return an error code as a result, so we ignore it */
3721 err = asus_wmi_set_devstate(asus->throttle_thermal_policy_dev, value, NULL);
3722
3723 sysfs_notify(&asus->platform_device->dev.kobj, NULL,
3724 "throttle_thermal_policy");
3725
3726 if (err) {
3727 pr_warn("Failed to set throttle thermal policy: %d\n", err);
3728 return err;
3729 }
3730
3731 /* Must set to disabled if mode is toggled */
3732 if (asus->cpu_fan_curve_available)
3733 asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false;
3734 if (asus->gpu_fan_curve_available)
3735 asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false;
3736 if (asus->mid_fan_curve_available)
3737 asus->custom_fan_curves[FAN_CURVE_DEV_MID].enabled = false;
3738
3739 return 0;
3740}
3741
3742static int throttle_thermal_policy_set_default(struct asus_wmi *asus)
3743{
3744 if (!asus->throttle_thermal_policy_dev)
3745 return 0;
3746
3747 asus->throttle_thermal_policy_mode = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
3748 return throttle_thermal_policy_write(asus);
3749}
3750
3751static ssize_t throttle_thermal_policy_show(struct device *dev,
3752 struct device_attribute *attr, char *buf)
3753{
3754 struct asus_wmi *asus = dev_get_drvdata(dev);
3755 u8 mode = asus->throttle_thermal_policy_mode;
3756
3757 return sysfs_emit(buf, "%d\n", mode);
3758}
3759
3760static ssize_t throttle_thermal_policy_store(struct device *dev,
3761 struct device_attribute *attr,
3762 const char *buf, size_t count)
3763{
3764 struct asus_wmi *asus = dev_get_drvdata(dev);
3765 u8 new_mode;
3766 int result;
3767 int err;
3768
3769 result = kstrtou8(buf, 10, &new_mode);
3770 if (result < 0)
3771 return result;
3772
3773 if (new_mode > PLATFORM_PROFILE_MAX)
3774 return -EINVAL;
3775
3776 asus->throttle_thermal_policy_mode = new_mode;
3777 err = throttle_thermal_policy_write(asus);
3778 if (err)
3779 return err;
3780
3781 /*
3782 * Ensure that platform_profile updates userspace with the change to ensure
3783 * that platform_profile and throttle_thermal_policy_mode are in sync.
3784 */
3785 platform_profile_notify();
3786
3787 return count;
3788}
3789
3790/*
3791 * Throttle thermal policy: 0 - default, 1 - overboost, 2 - silent
3792 */
3793static DEVICE_ATTR_RW(throttle_thermal_policy);
3794
3795/* Platform profile ***********************************************************/
3796static int asus_wmi_platform_profile_get(struct platform_profile_handler *pprof,
3797 enum platform_profile_option *profile)
3798{
3799 struct asus_wmi *asus;
3800 int tp;
3801
3802 asus = container_of(pprof, struct asus_wmi, platform_profile_handler);
3803 tp = asus->throttle_thermal_policy_mode;
3804
3805 switch (tp) {
3806 case ASUS_THROTTLE_THERMAL_POLICY_DEFAULT:
3807 *profile = PLATFORM_PROFILE_BALANCED;
3808 break;
3809 case ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST:
3810 *profile = PLATFORM_PROFILE_PERFORMANCE;
3811 break;
3812 case ASUS_THROTTLE_THERMAL_POLICY_SILENT:
3813 *profile = PLATFORM_PROFILE_QUIET;
3814 break;
3815 default:
3816 return -EINVAL;
3817 }
3818
3819 return 0;
3820}
3821
3822static int asus_wmi_platform_profile_set(struct platform_profile_handler *pprof,
3823 enum platform_profile_option profile)
3824{
3825 struct asus_wmi *asus;
3826 int tp;
3827
3828 asus = container_of(pprof, struct asus_wmi, platform_profile_handler);
3829
3830 switch (profile) {
3831 case PLATFORM_PROFILE_PERFORMANCE:
3832 tp = ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST;
3833 break;
3834 case PLATFORM_PROFILE_BALANCED:
3835 tp = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
3836 break;
3837 case PLATFORM_PROFILE_QUIET:
3838 tp = ASUS_THROTTLE_THERMAL_POLICY_SILENT;
3839 break;
3840 default:
3841 return -EOPNOTSUPP;
3842 }
3843
3844 asus->throttle_thermal_policy_mode = tp;
3845 return throttle_thermal_policy_write(asus);
3846}
3847
3848static int platform_profile_setup(struct asus_wmi *asus)
3849{
3850 struct device *dev = &asus->platform_device->dev;
3851 int err;
3852
3853 /*
3854 * Not an error if a component platform_profile relies on is unavailable
3855 * so early return, skipping the setup of platform_profile.
3856 */
3857 if (!asus->throttle_thermal_policy_dev)
3858 return 0;
3859
3860 /*
3861 * We need to set the default thermal profile during probe or otherwise
3862 * the system will often remain in silent mode, causing low performance.
3863 */
3864 err = throttle_thermal_policy_set_default(asus);
3865 if (err < 0) {
3866 pr_warn("Failed to set default thermal profile\n");
3867 return err;
3868 }
3869
3870 dev_info(dev, "Using throttle_thermal_policy for platform_profile support\n");
3871
3872 asus->platform_profile_handler.profile_get = asus_wmi_platform_profile_get;
3873 asus->platform_profile_handler.profile_set = asus_wmi_platform_profile_set;
3874
3875 set_bit(PLATFORM_PROFILE_QUIET, asus->platform_profile_handler.choices);
3876 set_bit(PLATFORM_PROFILE_BALANCED,
3877 asus->platform_profile_handler.choices);
3878 set_bit(PLATFORM_PROFILE_PERFORMANCE,
3879 asus->platform_profile_handler.choices);
3880
3881 err = platform_profile_register(&asus->platform_profile_handler);
3882 if (err == -EEXIST) {
3883 pr_warn("%s, a platform_profile handler is already registered\n", __func__);
3884 return 0;
3885 } else if (err) {
3886 pr_err("%s, failed at platform_profile_register: %d\n", __func__, err);
3887 return err;
3888 }
3889
3890 asus->platform_profile_support = true;
3891 return 0;
3892}
3893
3894/* Backlight ******************************************************************/
3895
3896static int read_backlight_power(struct asus_wmi *asus)
3897{
3898 int ret;
3899
3900 if (asus->driver->quirks->store_backlight_power)
3901 ret = !asus->driver->panel_power;
3902 else
3903 ret = asus_wmi_get_devstate_simple(asus,
3904 ASUS_WMI_DEVID_BACKLIGHT);
3905
3906 if (ret < 0)
3907 return ret;
3908
3909 return ret ? BACKLIGHT_POWER_ON : BACKLIGHT_POWER_OFF;
3910}
3911
3912static int read_brightness_max(struct asus_wmi *asus)
3913{
3914 u32 retval;
3915 int err;
3916
3917 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
3918 if (err < 0)
3919 return err;
3920
3921 retval = retval & ASUS_WMI_DSTS_MAX_BRIGTH_MASK;
3922 retval >>= 8;
3923
3924 if (!retval)
3925 return -ENODEV;
3926
3927 return retval;
3928}
3929
3930static int read_brightness(struct backlight_device *bd)
3931{
3932 struct asus_wmi *asus = bl_get_data(bd);
3933 u32 retval;
3934 int err;
3935
3936 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
3937 if (err < 0)
3938 return err;
3939
3940 return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
3941}
3942
3943static u32 get_scalar_command(struct backlight_device *bd)
3944{
3945 struct asus_wmi *asus = bl_get_data(bd);
3946 u32 ctrl_param = 0;
3947
3948 if ((asus->driver->brightness < bd->props.brightness) ||
3949 bd->props.brightness == bd->props.max_brightness)
3950 ctrl_param = 0x00008001;
3951 else if ((asus->driver->brightness > bd->props.brightness) ||
3952 bd->props.brightness == 0)
3953 ctrl_param = 0x00008000;
3954
3955 asus->driver->brightness = bd->props.brightness;
3956
3957 return ctrl_param;
3958}
3959
3960static int update_bl_status(struct backlight_device *bd)
3961{
3962 struct asus_wmi *asus = bl_get_data(bd);
3963 u32 ctrl_param;
3964 int power, err = 0;
3965
3966 power = read_backlight_power(asus);
3967 if (power != -ENODEV && bd->props.power != power) {
3968 ctrl_param = !!(bd->props.power == BACKLIGHT_POWER_ON);
3969 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT,
3970 ctrl_param, NULL);
3971 if (asus->driver->quirks->store_backlight_power)
3972 asus->driver->panel_power = bd->props.power;
3973
3974 /* When using scalar brightness, updating the brightness
3975 * will mess with the backlight power */
3976 if (asus->driver->quirks->scalar_panel_brightness)
3977 return err;
3978 }
3979
3980 if (asus->driver->quirks->scalar_panel_brightness)
3981 ctrl_param = get_scalar_command(bd);
3982 else
3983 ctrl_param = bd->props.brightness;
3984
3985 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS,
3986 ctrl_param, NULL);
3987
3988 return err;
3989}
3990
3991static const struct backlight_ops asus_wmi_bl_ops = {
3992 .get_brightness = read_brightness,
3993 .update_status = update_bl_status,
3994};
3995
3996static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code)
3997{
3998 struct backlight_device *bd = asus->backlight_device;
3999 int old = bd->props.brightness;
4000 int new = old;
4001
4002 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
4003 new = code - NOTIFY_BRNUP_MIN + 1;
4004 else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
4005 new = code - NOTIFY_BRNDOWN_MIN;
4006
4007 bd->props.brightness = new;
4008 backlight_update_status(bd);
4009 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
4010
4011 return old;
4012}
4013
4014static int asus_wmi_backlight_init(struct asus_wmi *asus)
4015{
4016 struct backlight_device *bd;
4017 struct backlight_properties props;
4018 int max;
4019 int power;
4020
4021 max = read_brightness_max(asus);
4022 if (max < 0)
4023 return max;
4024
4025 power = read_backlight_power(asus);
4026 if (power == -ENODEV)
4027 power = BACKLIGHT_POWER_ON;
4028 else if (power < 0)
4029 return power;
4030
4031 memset(&props, 0, sizeof(struct backlight_properties));
4032 props.type = BACKLIGHT_PLATFORM;
4033 props.max_brightness = max;
4034 bd = backlight_device_register(asus->driver->name,
4035 &asus->platform_device->dev, asus,
4036 &asus_wmi_bl_ops, &props);
4037 if (IS_ERR(bd)) {
4038 pr_err("Could not register backlight device\n");
4039 return PTR_ERR(bd);
4040 }
4041
4042 asus->backlight_device = bd;
4043
4044 if (asus->driver->quirks->store_backlight_power)
4045 asus->driver->panel_power = power;
4046
4047 bd->props.brightness = read_brightness(bd);
4048 bd->props.power = power;
4049 backlight_update_status(bd);
4050
4051 asus->driver->brightness = bd->props.brightness;
4052
4053 return 0;
4054}
4055
4056static void asus_wmi_backlight_exit(struct asus_wmi *asus)
4057{
4058 backlight_device_unregister(asus->backlight_device);
4059
4060 asus->backlight_device = NULL;
4061}
4062
4063static int is_display_toggle(int code)
4064{
4065 /* display toggle keys */
4066 if ((code >= 0x61 && code <= 0x67) ||
4067 (code >= 0x8c && code <= 0x93) ||
4068 (code >= 0xa0 && code <= 0xa7) ||
4069 (code >= 0xd0 && code <= 0xd5))
4070 return 1;
4071
4072 return 0;
4073}
4074
4075/* Screenpad backlight *******************************************************/
4076
4077static int read_screenpad_backlight_power(struct asus_wmi *asus)
4078{
4079 int ret;
4080
4081 ret = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_SCREENPAD_POWER);
4082 if (ret < 0)
4083 return ret;
4084 /* 1 == powered */
4085 return ret ? BACKLIGHT_POWER_ON : BACKLIGHT_POWER_OFF;
4086}
4087
4088static int read_screenpad_brightness(struct backlight_device *bd)
4089{
4090 struct asus_wmi *asus = bl_get_data(bd);
4091 u32 retval;
4092 int err;
4093
4094 err = read_screenpad_backlight_power(asus);
4095 if (err < 0)
4096 return err;
4097 /* The device brightness can only be read if powered, so return stored */
4098 if (err == BACKLIGHT_POWER_OFF)
4099 return asus->driver->screenpad_brightness - ASUS_SCREENPAD_BRIGHT_MIN;
4100
4101 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_SCREENPAD_LIGHT, &retval);
4102 if (err < 0)
4103 return err;
4104
4105 return (retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK) - ASUS_SCREENPAD_BRIGHT_MIN;
4106}
4107
4108static int update_screenpad_bl_status(struct backlight_device *bd)
4109{
4110 struct asus_wmi *asus = bl_get_data(bd);
4111 int power, err = 0;
4112 u32 ctrl_param;
4113
4114 power = read_screenpad_backlight_power(asus);
4115 if (power < 0)
4116 return power;
4117
4118 if (bd->props.power != power) {
4119 if (power != BACKLIGHT_POWER_ON) {
4120 /* Only brightness > 0 can power it back on */
4121 ctrl_param = asus->driver->screenpad_brightness - ASUS_SCREENPAD_BRIGHT_MIN;
4122 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_SCREENPAD_LIGHT,
4123 ctrl_param, NULL);
4124 } else {
4125 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_SCREENPAD_POWER, 0, NULL);
4126 }
4127 } else if (power == BACKLIGHT_POWER_ON) {
4128 /* Only set brightness if powered on or we get invalid/unsync state */
4129 ctrl_param = bd->props.brightness + ASUS_SCREENPAD_BRIGHT_MIN;
4130 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_SCREENPAD_LIGHT, ctrl_param, NULL);
4131 }
4132
4133 /* Ensure brightness is stored to turn back on with */
4134 if (err == 0)
4135 asus->driver->screenpad_brightness = bd->props.brightness + ASUS_SCREENPAD_BRIGHT_MIN;
4136
4137 return err;
4138}
4139
4140static const struct backlight_ops asus_screenpad_bl_ops = {
4141 .get_brightness = read_screenpad_brightness,
4142 .update_status = update_screenpad_bl_status,
4143 .options = BL_CORE_SUSPENDRESUME,
4144};
4145
4146static int asus_screenpad_init(struct asus_wmi *asus)
4147{
4148 struct backlight_device *bd;
4149 struct backlight_properties props;
4150 int err, power;
4151 int brightness = 0;
4152
4153 power = read_screenpad_backlight_power(asus);
4154 if (power < 0)
4155 return power;
4156
4157 if (power != BACKLIGHT_POWER_OFF) {
4158 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_SCREENPAD_LIGHT, &brightness);
4159 if (err < 0)
4160 return err;
4161 }
4162 /* default to an acceptable min brightness on boot if too low */
4163 if (brightness < ASUS_SCREENPAD_BRIGHT_MIN)
4164 brightness = ASUS_SCREENPAD_BRIGHT_DEFAULT;
4165
4166 memset(&props, 0, sizeof(struct backlight_properties));
4167 props.type = BACKLIGHT_RAW; /* ensure this bd is last to be picked */
4168 props.max_brightness = ASUS_SCREENPAD_BRIGHT_MAX - ASUS_SCREENPAD_BRIGHT_MIN;
4169 bd = backlight_device_register("asus_screenpad",
4170 &asus->platform_device->dev, asus,
4171 &asus_screenpad_bl_ops, &props);
4172 if (IS_ERR(bd)) {
4173 pr_err("Could not register backlight device\n");
4174 return PTR_ERR(bd);
4175 }
4176
4177 asus->screenpad_backlight_device = bd;
4178 asus->driver->screenpad_brightness = brightness;
4179 bd->props.brightness = brightness - ASUS_SCREENPAD_BRIGHT_MIN;
4180 bd->props.power = power;
4181 backlight_update_status(bd);
4182
4183 return 0;
4184}
4185
4186static void asus_screenpad_exit(struct asus_wmi *asus)
4187{
4188 backlight_device_unregister(asus->screenpad_backlight_device);
4189
4190 asus->screenpad_backlight_device = NULL;
4191}
4192
4193/* Fn-lock ********************************************************************/
4194
4195static bool asus_wmi_has_fnlock_key(struct asus_wmi *asus)
4196{
4197 u32 result;
4198
4199 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FNLOCK, &result);
4200
4201 return (result & ASUS_WMI_DSTS_PRESENCE_BIT) &&
4202 !(result & ASUS_WMI_FNLOCK_BIOS_DISABLED);
4203}
4204
4205static void asus_wmi_fnlock_update(struct asus_wmi *asus)
4206{
4207 int mode = asus->fnlock_locked;
4208
4209 asus_wmi_set_devstate(ASUS_WMI_DEVID_FNLOCK, mode, NULL);
4210}
4211
4212/* WMI events *****************************************************************/
4213
4214static int asus_wmi_get_event_code(union acpi_object *obj)
4215{
4216 int code;
4217
4218 if (obj && obj->type == ACPI_TYPE_INTEGER)
4219 code = (int)(obj->integer.value & WMI_EVENT_MASK);
4220 else
4221 code = -EIO;
4222
4223 return code;
4224}
4225
4226static void asus_wmi_handle_event_code(int code, struct asus_wmi *asus)
4227{
4228 unsigned int key_value = 1;
4229 bool autorelease = 1;
4230
4231 if (asus->driver->key_filter) {
4232 asus->driver->key_filter(asus->driver, &code, &key_value,
4233 &autorelease);
4234 if (code == ASUS_WMI_KEY_IGNORE)
4235 return;
4236 }
4237
4238 if (acpi_video_get_backlight_type() == acpi_backlight_vendor &&
4239 code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNDOWN_MAX) {
4240 asus_wmi_backlight_notify(asus, code);
4241 return;
4242 }
4243
4244 if (code == NOTIFY_KBD_BRTUP) {
4245 kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1);
4246 return;
4247 }
4248 if (code == NOTIFY_KBD_BRTDWN) {
4249 kbd_led_set_by_kbd(asus, asus->kbd_led_wk - 1);
4250 return;
4251 }
4252 if (code == NOTIFY_KBD_BRTTOGGLE) {
4253 if (asus->kbd_led_wk == asus->kbd_led.max_brightness)
4254 kbd_led_set_by_kbd(asus, 0);
4255 else
4256 kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1);
4257 return;
4258 }
4259
4260 if (code == NOTIFY_FNLOCK_TOGGLE) {
4261 asus->fnlock_locked = !asus->fnlock_locked;
4262 asus_wmi_fnlock_update(asus);
4263 return;
4264 }
4265
4266 if (code == asus->tablet_switch_event_code) {
4267 asus_wmi_tablet_mode_get_state(asus);
4268 return;
4269 }
4270
4271 if (code == NOTIFY_KBD_FBM || code == NOTIFY_KBD_TTP) {
4272 if (asus->fan_boost_mode_available)
4273 fan_boost_mode_switch_next(asus);
4274 if (asus->throttle_thermal_policy_dev)
4275 platform_profile_cycle();
4276 return;
4277
4278 }
4279
4280 if (is_display_toggle(code) && asus->driver->quirks->no_display_toggle)
4281 return;
4282
4283 if (!sparse_keymap_report_event(asus->inputdev, code,
4284 key_value, autorelease))
4285 pr_info("Unknown key code 0x%x\n", code);
4286}
4287
4288static void asus_wmi_notify(union acpi_object *obj, void *context)
4289{
4290 struct asus_wmi *asus = context;
4291 int code = asus_wmi_get_event_code(obj);
4292
4293 if (code < 0) {
4294 pr_warn("Failed to get notify code: %d\n", code);
4295 return;
4296 }
4297
4298 asus_wmi_handle_event_code(code, asus);
4299}
4300
4301/* Sysfs **********************************************************************/
4302
4303static ssize_t store_sys_wmi(struct asus_wmi *asus, int devid,
4304 const char *buf, size_t count)
4305{
4306 u32 retval;
4307 int err, value;
4308
4309 value = asus_wmi_get_devstate_simple(asus, devid);
4310 if (value < 0)
4311 return value;
4312
4313 err = kstrtoint(buf, 0, &value);
4314 if (err)
4315 return err;
4316
4317 err = asus_wmi_set_devstate(devid, value, &retval);
4318 if (err < 0)
4319 return err;
4320
4321 return count;
4322}
4323
4324static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
4325{
4326 int value = asus_wmi_get_devstate_simple(asus, devid);
4327
4328 if (value < 0)
4329 return value;
4330
4331 return sysfs_emit(buf, "%d\n", value);
4332}
4333
4334#define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \
4335 static ssize_t show_##_name(struct device *dev, \
4336 struct device_attribute *attr, \
4337 char *buf) \
4338 { \
4339 struct asus_wmi *asus = dev_get_drvdata(dev); \
4340 \
4341 return show_sys_wmi(asus, _cm, buf); \
4342 } \
4343 static ssize_t store_##_name(struct device *dev, \
4344 struct device_attribute *attr, \
4345 const char *buf, size_t count) \
4346 { \
4347 struct asus_wmi *asus = dev_get_drvdata(dev); \
4348 \
4349 return store_sys_wmi(asus, _cm, buf, count); \
4350 } \
4351 static struct device_attribute dev_attr_##_name = { \
4352 .attr = { \
4353 .name = __stringify(_name), \
4354 .mode = _mode }, \
4355 .show = show_##_name, \
4356 .store = store_##_name, \
4357 }
4358
4359ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD);
4360ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA);
4361ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
4362ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume, 0644, ASUS_WMI_DEVID_LID_RESUME);
4363ASUS_WMI_CREATE_DEVICE_ATTR(als_enable, 0644, ASUS_WMI_DEVID_ALS_ENABLE);
4364
4365static ssize_t cpufv_store(struct device *dev, struct device_attribute *attr,
4366 const char *buf, size_t count)
4367{
4368 int value, rv;
4369
4370 rv = kstrtoint(buf, 0, &value);
4371 if (rv)
4372 return rv;
4373
4374 if (value < 0 || value > 2)
4375 return -EINVAL;
4376
4377 rv = asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL);
4378 if (rv < 0)
4379 return rv;
4380
4381 return count;
4382}
4383
4384static DEVICE_ATTR_WO(cpufv);
4385
4386static struct attribute *platform_attributes[] = {
4387 &dev_attr_cpufv.attr,
4388 &dev_attr_camera.attr,
4389 &dev_attr_cardr.attr,
4390 &dev_attr_touchpad.attr,
4391 &dev_attr_charge_mode.attr,
4392 &dev_attr_egpu_enable.attr,
4393 &dev_attr_egpu_connected.attr,
4394 &dev_attr_dgpu_disable.attr,
4395 &dev_attr_gpu_mux_mode.attr,
4396 &dev_attr_lid_resume.attr,
4397 &dev_attr_als_enable.attr,
4398 &dev_attr_fan_boost_mode.attr,
4399 &dev_attr_throttle_thermal_policy.attr,
4400 &dev_attr_ppt_pl2_sppt.attr,
4401 &dev_attr_ppt_pl1_spl.attr,
4402 &dev_attr_ppt_fppt.attr,
4403 &dev_attr_ppt_apu_sppt.attr,
4404 &dev_attr_ppt_platform_sppt.attr,
4405 &dev_attr_nv_dynamic_boost.attr,
4406 &dev_attr_nv_temp_target.attr,
4407 &dev_attr_mcu_powersave.attr,
4408 &dev_attr_boot_sound.attr,
4409 &dev_attr_panel_od.attr,
4410 &dev_attr_mini_led_mode.attr,
4411 &dev_attr_available_mini_led_mode.attr,
4412 NULL
4413};
4414
4415static umode_t asus_sysfs_is_visible(struct kobject *kobj,
4416 struct attribute *attr, int idx)
4417{
4418 struct device *dev = kobj_to_dev(kobj);
4419 struct asus_wmi *asus = dev_get_drvdata(dev);
4420 bool ok = true;
4421 int devid = -1;
4422
4423 if (attr == &dev_attr_camera.attr)
4424 devid = ASUS_WMI_DEVID_CAMERA;
4425 else if (attr == &dev_attr_cardr.attr)
4426 devid = ASUS_WMI_DEVID_CARDREADER;
4427 else if (attr == &dev_attr_touchpad.attr)
4428 devid = ASUS_WMI_DEVID_TOUCHPAD;
4429 else if (attr == &dev_attr_lid_resume.attr)
4430 devid = ASUS_WMI_DEVID_LID_RESUME;
4431 else if (attr == &dev_attr_als_enable.attr)
4432 devid = ASUS_WMI_DEVID_ALS_ENABLE;
4433 else if (attr == &dev_attr_charge_mode.attr)
4434 devid = ASUS_WMI_DEVID_CHARGE_MODE;
4435 else if (attr == &dev_attr_egpu_enable.attr)
4436 ok = asus->egpu_enable_available;
4437 else if (attr == &dev_attr_egpu_connected.attr)
4438 devid = ASUS_WMI_DEVID_EGPU_CONNECTED;
4439 else if (attr == &dev_attr_dgpu_disable.attr)
4440 ok = asus->dgpu_disable_available;
4441 else if (attr == &dev_attr_gpu_mux_mode.attr)
4442 ok = asus->gpu_mux_dev != 0;
4443 else if (attr == &dev_attr_fan_boost_mode.attr)
4444 ok = asus->fan_boost_mode_available;
4445 else if (attr == &dev_attr_throttle_thermal_policy.attr)
4446 ok = asus->throttle_thermal_policy_dev != 0;
4447 else if (attr == &dev_attr_ppt_pl2_sppt.attr)
4448 devid = ASUS_WMI_DEVID_PPT_PL2_SPPT;
4449 else if (attr == &dev_attr_ppt_pl1_spl.attr)
4450 devid = ASUS_WMI_DEVID_PPT_PL1_SPL;
4451 else if (attr == &dev_attr_ppt_fppt.attr)
4452 devid = ASUS_WMI_DEVID_PPT_FPPT;
4453 else if (attr == &dev_attr_ppt_apu_sppt.attr)
4454 devid = ASUS_WMI_DEVID_PPT_APU_SPPT;
4455 else if (attr == &dev_attr_ppt_platform_sppt.attr)
4456 devid = ASUS_WMI_DEVID_PPT_PLAT_SPPT;
4457 else if (attr == &dev_attr_nv_dynamic_boost.attr)
4458 devid = ASUS_WMI_DEVID_NV_DYN_BOOST;
4459 else if (attr == &dev_attr_nv_temp_target.attr)
4460 devid = ASUS_WMI_DEVID_NV_THERM_TARGET;
4461 else if (attr == &dev_attr_mcu_powersave.attr)
4462 devid = ASUS_WMI_DEVID_MCU_POWERSAVE;
4463 else if (attr == &dev_attr_boot_sound.attr)
4464 devid = ASUS_WMI_DEVID_BOOT_SOUND;
4465 else if (attr == &dev_attr_panel_od.attr)
4466 devid = ASUS_WMI_DEVID_PANEL_OD;
4467 else if (attr == &dev_attr_mini_led_mode.attr)
4468 ok = asus->mini_led_dev_id != 0;
4469 else if (attr == &dev_attr_available_mini_led_mode.attr)
4470 ok = asus->mini_led_dev_id != 0;
4471
4472 if (devid != -1) {
4473 ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
4474 pr_debug("%s called 0x%08x, ok: %x\n", __func__, devid, ok);
4475 }
4476
4477 return ok ? attr->mode : 0;
4478}
4479
4480static const struct attribute_group platform_attribute_group = {
4481 .is_visible = asus_sysfs_is_visible,
4482 .attrs = platform_attributes
4483};
4484
4485static void asus_wmi_sysfs_exit(struct platform_device *device)
4486{
4487 sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
4488}
4489
4490static int asus_wmi_sysfs_init(struct platform_device *device)
4491{
4492 return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
4493}
4494
4495/* Platform device ************************************************************/
4496
4497static int asus_wmi_platform_init(struct asus_wmi *asus)
4498{
4499 struct device *dev = &asus->platform_device->dev;
4500 char *wmi_uid;
4501 int rv;
4502
4503 /* INIT enable hotkeys on some models */
4504 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv))
4505 pr_info("Initialization: %#x\n", rv);
4506
4507 /* We don't know yet what to do with this version... */
4508 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) {
4509 pr_info("BIOS WMI version: %d.%d\n", rv >> 16, rv & 0xFF);
4510 asus->spec = rv;
4511 }
4512
4513 /*
4514 * The SFUN method probably allows the original driver to get the list
4515 * of features supported by a given model. For now, 0x0100 or 0x0800
4516 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
4517 * The significance of others is yet to be found.
4518 */
4519 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) {
4520 pr_info("SFUN value: %#x\n", rv);
4521 asus->sfun = rv;
4522 }
4523
4524 /*
4525 * Eee PC and Notebooks seems to have different method_id for DSTS,
4526 * but it may also be related to the BIOS's SPEC.
4527 * Note, on most Eeepc, there is no way to check if a method exist
4528 * or note, while on notebooks, they returns 0xFFFFFFFE on failure,
4529 * but once again, SPEC may probably be used for that kind of things.
4530 *
4531 * Additionally at least TUF Gaming series laptops return nothing for
4532 * unknown methods, so the detection in this way is not possible.
4533 *
4534 * There is strong indication that only ACPI WMI devices that have _UID
4535 * equal to "ASUSWMI" use DCTS whereas those with "ATK" use DSTS.
4536 */
4537 wmi_uid = wmi_get_acpi_device_uid(ASUS_WMI_MGMT_GUID);
4538 if (!wmi_uid)
4539 return -ENODEV;
4540
4541 if (!strcmp(wmi_uid, ASUS_ACPI_UID_ASUSWMI)) {
4542 dev_info(dev, "Detected ASUSWMI, use DCTS\n");
4543 asus->dsts_id = ASUS_WMI_METHODID_DCTS;
4544 } else {
4545 dev_info(dev, "Detected %s, not ASUSWMI, use DSTS\n", wmi_uid);
4546 asus->dsts_id = ASUS_WMI_METHODID_DSTS;
4547 }
4548
4549 /* CWAP allow to define the behavior of the Fn+F2 key,
4550 * this method doesn't seems to be present on Eee PCs */
4551 if (asus->driver->quirks->wapf >= 0)
4552 asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP,
4553 asus->driver->quirks->wapf, NULL);
4554
4555 return 0;
4556}
4557
4558/* debugfs ********************************************************************/
4559
4560struct asus_wmi_debugfs_node {
4561 struct asus_wmi *asus;
4562 char *name;
4563 int (*show) (struct seq_file *m, void *data);
4564};
4565
4566static int show_dsts(struct seq_file *m, void *data)
4567{
4568 struct asus_wmi *asus = m->private;
4569 int err;
4570 u32 retval = -1;
4571
4572 err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
4573 if (err < 0)
4574 return err;
4575
4576 seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval);
4577
4578 return 0;
4579}
4580
4581static int show_devs(struct seq_file *m, void *data)
4582{
4583 struct asus_wmi *asus = m->private;
4584 int err;
4585 u32 retval = -1;
4586
4587 err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
4588 &retval);
4589 if (err < 0)
4590 return err;
4591
4592 seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id,
4593 asus->debug.ctrl_param, retval);
4594
4595 return 0;
4596}
4597
4598static int show_call(struct seq_file *m, void *data)
4599{
4600 struct asus_wmi *asus = m->private;
4601 struct bios_args args = {
4602 .arg0 = asus->debug.dev_id,
4603 .arg1 = asus->debug.ctrl_param,
4604 };
4605 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
4606 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
4607 union acpi_object *obj;
4608 acpi_status status;
4609
4610 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
4611 0, asus->debug.method_id,
4612 &input, &output);
4613
4614 if (ACPI_FAILURE(status))
4615 return -EIO;
4616
4617 obj = (union acpi_object *)output.pointer;
4618 if (obj && obj->type == ACPI_TYPE_INTEGER)
4619 seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id,
4620 asus->debug.dev_id, asus->debug.ctrl_param,
4621 (u32) obj->integer.value);
4622 else
4623 seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id,
4624 asus->debug.dev_id, asus->debug.ctrl_param,
4625 obj ? obj->type : -1);
4626
4627 kfree(obj);
4628
4629 return 0;
4630}
4631
4632static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = {
4633 {NULL, "devs", show_devs},
4634 {NULL, "dsts", show_dsts},
4635 {NULL, "call", show_call},
4636};
4637
4638static int asus_wmi_debugfs_open(struct inode *inode, struct file *file)
4639{
4640 struct asus_wmi_debugfs_node *node = inode->i_private;
4641
4642 return single_open(file, node->show, node->asus);
4643}
4644
4645static const struct file_operations asus_wmi_debugfs_io_ops = {
4646 .owner = THIS_MODULE,
4647 .open = asus_wmi_debugfs_open,
4648 .read = seq_read,
4649 .llseek = seq_lseek,
4650 .release = single_release,
4651};
4652
4653static void asus_wmi_debugfs_exit(struct asus_wmi *asus)
4654{
4655 debugfs_remove_recursive(asus->debug.root);
4656}
4657
4658static void asus_wmi_debugfs_init(struct asus_wmi *asus)
4659{
4660 int i;
4661
4662 asus->debug.root = debugfs_create_dir(asus->driver->name, NULL);
4663
4664 debugfs_create_x32("method_id", S_IRUGO | S_IWUSR, asus->debug.root,
4665 &asus->debug.method_id);
4666
4667 debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR, asus->debug.root,
4668 &asus->debug.dev_id);
4669
4670 debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR, asus->debug.root,
4671 &asus->debug.ctrl_param);
4672
4673 for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) {
4674 struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i];
4675
4676 node->asus = asus;
4677 debugfs_create_file(node->name, S_IFREG | S_IRUGO,
4678 asus->debug.root, node,
4679 &asus_wmi_debugfs_io_ops);
4680 }
4681}
4682
4683/* Init / exit ****************************************************************/
4684
4685static int asus_wmi_add(struct platform_device *pdev)
4686{
4687 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
4688 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
4689 struct asus_wmi *asus;
4690 acpi_status status;
4691 int err;
4692 u32 result;
4693
4694 asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL);
4695 if (!asus)
4696 return -ENOMEM;
4697
4698 asus->driver = wdrv;
4699 asus->platform_device = pdev;
4700 wdrv->platform_device = pdev;
4701 platform_set_drvdata(asus->platform_device, asus);
4702
4703 if (wdrv->detect_quirks)
4704 wdrv->detect_quirks(asus->driver);
4705
4706 err = asus_wmi_platform_init(asus);
4707 if (err)
4708 goto fail_platform;
4709
4710 /* ensure defaults for tunables */
4711 asus->ppt_pl2_sppt = 5;
4712 asus->ppt_pl1_spl = 5;
4713 asus->ppt_apu_sppt = 5;
4714 asus->ppt_platform_sppt = 5;
4715 asus->ppt_fppt = 5;
4716 asus->nv_dynamic_boost = 5;
4717 asus->nv_temp_target = 75;
4718
4719 asus->egpu_enable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU);
4720 asus->dgpu_disable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_DGPU);
4721 asus->kbd_rgb_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_STATE);
4722 asus->ally_mcu_usb_switch = acpi_has_method(NULL, ASUS_USB0_PWR_EC0_CSEE)
4723 && dmi_check_system(asus_ally_mcu_quirk);
4724
4725 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE))
4726 asus->mini_led_dev_id = ASUS_WMI_DEVID_MINI_LED_MODE;
4727 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE2))
4728 asus->mini_led_dev_id = ASUS_WMI_DEVID_MINI_LED_MODE2;
4729
4730 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX))
4731 asus->gpu_mux_dev = ASUS_WMI_DEVID_GPU_MUX;
4732 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX_VIVO))
4733 asus->gpu_mux_dev = ASUS_WMI_DEVID_GPU_MUX_VIVO;
4734
4735 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE))
4736 asus->kbd_rgb_dev = ASUS_WMI_DEVID_TUF_RGB_MODE;
4737 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE2))
4738 asus->kbd_rgb_dev = ASUS_WMI_DEVID_TUF_RGB_MODE2;
4739
4740 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY))
4741 asus->throttle_thermal_policy_dev = ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY;
4742 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY_VIVO))
4743 asus->throttle_thermal_policy_dev = ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY_VIVO;
4744
4745 err = fan_boost_mode_check_present(asus);
4746 if (err)
4747 goto fail_fan_boost_mode;
4748
4749 err = platform_profile_setup(asus);
4750 if (err)
4751 goto fail_platform_profile_setup;
4752
4753 err = asus_wmi_sysfs_init(asus->platform_device);
4754 if (err)
4755 goto fail_sysfs;
4756
4757 err = asus_wmi_input_init(asus);
4758 if (err)
4759 goto fail_input;
4760
4761 err = asus_wmi_fan_init(asus); /* probably no problems on error */
4762
4763 err = asus_wmi_hwmon_init(asus);
4764 if (err)
4765 goto fail_hwmon;
4766
4767 err = asus_wmi_custom_fan_curve_init(asus);
4768 if (err)
4769 goto fail_custom_fan_curve;
4770
4771 err = asus_wmi_led_init(asus);
4772 if (err)
4773 goto fail_leds;
4774
4775 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result);
4776 if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT))
4777 asus->driver->wlan_ctrl_by_user = 1;
4778
4779 if (!(asus->driver->wlan_ctrl_by_user && ashs_present())) {
4780 err = asus_wmi_rfkill_init(asus);
4781 if (err)
4782 goto fail_rfkill;
4783 }
4784
4785 if (asus->driver->quirks->wmi_force_als_set)
4786 asus_wmi_set_als();
4787
4788 if (asus->driver->quirks->xusb2pr)
4789 asus_wmi_set_xusb2pr(asus);
4790
4791 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
4792 err = asus_wmi_backlight_init(asus);
4793 if (err && err != -ENODEV)
4794 goto fail_backlight;
4795 } else if (asus->driver->quirks->wmi_backlight_set_devstate)
4796 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL);
4797
4798 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_SCREENPAD_LIGHT)) {
4799 err = asus_screenpad_init(asus);
4800 if (err && err != -ENODEV)
4801 goto fail_screenpad;
4802 }
4803
4804 if (asus_wmi_has_fnlock_key(asus)) {
4805 asus->fnlock_locked = fnlock_default;
4806 asus_wmi_fnlock_update(asus);
4807 }
4808
4809 status = wmi_install_notify_handler(asus->driver->event_guid,
4810 asus_wmi_notify, asus);
4811 if (ACPI_FAILURE(status)) {
4812 pr_err("Unable to register notify handler - %d\n", status);
4813 err = -ENODEV;
4814 goto fail_wmi_handler;
4815 }
4816
4817 if (asus->driver->i8042_filter) {
4818 err = i8042_install_filter(asus->driver->i8042_filter);
4819 if (err)
4820 pr_warn("Unable to install key filter - %d\n", err);
4821 }
4822
4823 asus_wmi_battery_init(asus);
4824
4825 asus_wmi_debugfs_init(asus);
4826
4827 return 0;
4828
4829fail_wmi_handler:
4830 asus_wmi_backlight_exit(asus);
4831fail_backlight:
4832 asus_wmi_rfkill_exit(asus);
4833fail_screenpad:
4834 asus_screenpad_exit(asus);
4835fail_rfkill:
4836 asus_wmi_led_exit(asus);
4837fail_leds:
4838fail_hwmon:
4839 asus_wmi_input_exit(asus);
4840fail_input:
4841 asus_wmi_sysfs_exit(asus->platform_device);
4842fail_sysfs:
4843fail_custom_fan_curve:
4844fail_platform_profile_setup:
4845 if (asus->platform_profile_support)
4846 platform_profile_remove();
4847fail_fan_boost_mode:
4848fail_platform:
4849 kfree(asus);
4850 return err;
4851}
4852
4853static void asus_wmi_remove(struct platform_device *device)
4854{
4855 struct asus_wmi *asus;
4856
4857 asus = platform_get_drvdata(device);
4858 if (asus->driver->i8042_filter)
4859 i8042_remove_filter(asus->driver->i8042_filter);
4860 wmi_remove_notify_handler(asus->driver->event_guid);
4861 asus_wmi_backlight_exit(asus);
4862 asus_screenpad_exit(asus);
4863 asus_wmi_input_exit(asus);
4864 asus_wmi_led_exit(asus);
4865 asus_wmi_rfkill_exit(asus);
4866 asus_wmi_debugfs_exit(asus);
4867 asus_wmi_sysfs_exit(asus->platform_device);
4868 asus_fan_set_auto(asus);
4869 throttle_thermal_policy_set_default(asus);
4870 asus_wmi_battery_exit(asus);
4871
4872 if (asus->platform_profile_support)
4873 platform_profile_remove();
4874
4875 kfree(asus);
4876}
4877
4878/* Platform driver - hibernate/resume callbacks *******************************/
4879
4880static int asus_hotk_thaw(struct device *device)
4881{
4882 struct asus_wmi *asus = dev_get_drvdata(device);
4883
4884 if (asus->wlan.rfkill) {
4885 bool wlan;
4886
4887 /*
4888 * Work around bios bug - acpi _PTS turns off the wireless led
4889 * during suspend. Normally it restores it on resume, but
4890 * we should kick it ourselves in case hibernation is aborted.
4891 */
4892 wlan = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
4893 asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL);
4894 }
4895
4896 return 0;
4897}
4898
4899static int asus_hotk_resume(struct device *device)
4900{
4901 struct asus_wmi *asus = dev_get_drvdata(device);
4902
4903 if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
4904 kbd_led_update(asus);
4905
4906 if (asus_wmi_has_fnlock_key(asus))
4907 asus_wmi_fnlock_update(asus);
4908
4909 asus_wmi_tablet_mode_get_state(asus);
4910
4911 return 0;
4912}
4913
4914static int asus_hotk_resume_early(struct device *device)
4915{
4916 struct asus_wmi *asus = dev_get_drvdata(device);
4917
4918 if (asus->ally_mcu_usb_switch) {
4919 /* sleep required to prevent USB0 being yanked then reappearing rapidly */
4920 if (ACPI_FAILURE(acpi_execute_simple_method(NULL, ASUS_USB0_PWR_EC0_CSEE, 0xB8)))
4921 dev_err(device, "ROG Ally MCU failed to connect USB dev\n");
4922 else
4923 msleep(ASUS_USB0_PWR_EC0_CSEE_WAIT);
4924 }
4925 return 0;
4926}
4927
4928static int asus_hotk_prepare(struct device *device)
4929{
4930 struct asus_wmi *asus = dev_get_drvdata(device);
4931
4932 if (asus->ally_mcu_usb_switch) {
4933 /* sleep required to ensure USB0 is disabled before sleep continues */
4934 if (ACPI_FAILURE(acpi_execute_simple_method(NULL, ASUS_USB0_PWR_EC0_CSEE, 0xB7)))
4935 dev_err(device, "ROG Ally MCU failed to disconnect USB dev\n");
4936 else
4937 msleep(ASUS_USB0_PWR_EC0_CSEE_WAIT);
4938 }
4939 return 0;
4940}
4941
4942static int asus_hotk_restore(struct device *device)
4943{
4944 struct asus_wmi *asus = dev_get_drvdata(device);
4945 int bl;
4946
4947 /* Refresh both wlan rfkill state and pci hotplug */
4948 if (asus->wlan.rfkill)
4949 asus_rfkill_hotplug(asus);
4950
4951 if (asus->bluetooth.rfkill) {
4952 bl = !asus_wmi_get_devstate_simple(asus,
4953 ASUS_WMI_DEVID_BLUETOOTH);
4954 rfkill_set_sw_state(asus->bluetooth.rfkill, bl);
4955 }
4956 if (asus->wimax.rfkill) {
4957 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WIMAX);
4958 rfkill_set_sw_state(asus->wimax.rfkill, bl);
4959 }
4960 if (asus->wwan3g.rfkill) {
4961 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WWAN3G);
4962 rfkill_set_sw_state(asus->wwan3g.rfkill, bl);
4963 }
4964 if (asus->gps.rfkill) {
4965 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPS);
4966 rfkill_set_sw_state(asus->gps.rfkill, bl);
4967 }
4968 if (asus->uwb.rfkill) {
4969 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_UWB);
4970 rfkill_set_sw_state(asus->uwb.rfkill, bl);
4971 }
4972 if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
4973 kbd_led_update(asus);
4974
4975 if (asus_wmi_has_fnlock_key(asus))
4976 asus_wmi_fnlock_update(asus);
4977
4978 asus_wmi_tablet_mode_get_state(asus);
4979 return 0;
4980}
4981
4982static const struct dev_pm_ops asus_pm_ops = {
4983 .thaw = asus_hotk_thaw,
4984 .restore = asus_hotk_restore,
4985 .resume = asus_hotk_resume,
4986 .resume_early = asus_hotk_resume_early,
4987 .prepare = asus_hotk_prepare,
4988};
4989
4990/* Registration ***************************************************************/
4991
4992static int asus_wmi_probe(struct platform_device *pdev)
4993{
4994 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
4995 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
4996 int ret;
4997
4998 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
4999 pr_warn("ASUS Management GUID not found\n");
5000 return -ENODEV;
5001 }
5002
5003 if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) {
5004 pr_warn("ASUS Event GUID not found\n");
5005 return -ENODEV;
5006 }
5007
5008 if (wdrv->probe) {
5009 ret = wdrv->probe(pdev);
5010 if (ret)
5011 return ret;
5012 }
5013
5014 return asus_wmi_add(pdev);
5015}
5016
5017static bool used;
5018
5019int __init_or_module asus_wmi_register_driver(struct asus_wmi_driver *driver)
5020{
5021 struct platform_driver *platform_driver;
5022 struct platform_device *platform_device;
5023
5024 if (used)
5025 return -EBUSY;
5026
5027 platform_driver = &driver->platform_driver;
5028 platform_driver->remove = asus_wmi_remove;
5029 platform_driver->driver.owner = driver->owner;
5030 platform_driver->driver.name = driver->name;
5031 platform_driver->driver.pm = &asus_pm_ops;
5032
5033 platform_device = platform_create_bundle(platform_driver,
5034 asus_wmi_probe,
5035 NULL, 0, NULL, 0);
5036 if (IS_ERR(platform_device))
5037 return PTR_ERR(platform_device);
5038
5039 used = true;
5040 return 0;
5041}
5042EXPORT_SYMBOL_GPL(asus_wmi_register_driver);
5043
5044void asus_wmi_unregister_driver(struct asus_wmi_driver *driver)
5045{
5046 platform_device_unregister(driver->platform_device);
5047 platform_driver_unregister(&driver->platform_driver);
5048 used = false;
5049}
5050EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver);
5051
5052static int __init asus_wmi_init(void)
5053{
5054 pr_info("ASUS WMI generic driver loaded\n");
5055 return 0;
5056}
5057
5058static void __exit asus_wmi_exit(void)
5059{
5060 pr_info("ASUS WMI generic driver unloaded\n");
5061}
5062
5063module_init(asus_wmi_init);
5064module_exit(asus_wmi_exit);