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
46 MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>");
47 MODULE_AUTHOR("Yong Wang <yong.y.wang@intel.com>");
48 MODULE_DESCRIPTION("Asus Generic WMI Driver");
49 MODULE_LICENSE("GPL");
50
51 static bool fnlock_default = true;
52 module_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
118 static const char * const ashs_ids[] = { "ATK4001", "ATK4002", NULL };
119
120 static int throttle_thermal_policy_write(struct asus_wmi *);
121
ashs_present(void)122 static 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
132 struct 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 */
145 struct 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 */
154 struct 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 */
169 struct asus_wmi_debug {
170 struct dentry *root;
171 u32 method_id;
172 u32 dev_id;
173 u32 ctrl_param;
174 };
175
176 struct asus_rfkill {
177 struct asus_wmi *asus;
178 struct rfkill *rfkill;
179 u32 dev_id;
180 };
181
182 enum 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
188 struct fan_curve_data {
189 bool enabled;
190 u32 device_id;
191 u8 temps[FAN_CURVE_POINTS];
192 u8 percents[FAN_CURVE_POINTS];
193 };
194
195 struct 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
229 enum fan_type fan_type;
230 enum fan_type gpu_fan_type;
231 int fan_pwm_mode;
232 int gpu_fan_pwm_mode;
233 int agfn_pwm;
234
235 bool fan_boost_mode_available;
236 u8 fan_boost_mode_mask;
237 u8 fan_boost_mode;
238
239 bool egpu_enable_available;
240 bool dgpu_disable_available;
241 bool gpu_mux_mode_available;
242
243 bool kbd_rgb_mode_available;
244 bool kbd_rgb_state_available;
245
246 bool throttle_thermal_policy_available;
247 u8 throttle_thermal_policy_mode;
248
249 bool cpu_fan_curve_available;
250 bool gpu_fan_curve_available;
251 struct fan_curve_data custom_fan_curves[2];
252
253 struct platform_profile_handler platform_profile_handler;
254 bool platform_profile_support;
255
256 // The RSOC controls the maximum charging percentage.
257 bool battery_rsoc_available;
258
259 bool panel_overdrive_available;
260
261 struct hotplug_slot hotplug_slot;
262 struct mutex hotplug_lock;
263 struct mutex wmi_lock;
264 struct workqueue_struct *hotplug_workqueue;
265 struct work_struct hotplug_work;
266
267 bool fnlock_locked;
268
269 struct asus_wmi_debug debug;
270
271 struct asus_wmi_driver *driver;
272 };
273
274 /* WMI ************************************************************************/
275
asus_wmi_evaluate_method3(u32 method_id,u32 arg0,u32 arg1,u32 arg2,u32 * retval)276 static int asus_wmi_evaluate_method3(u32 method_id,
277 u32 arg0, u32 arg1, u32 arg2, u32 *retval)
278 {
279 struct bios_args args = {
280 .arg0 = arg0,
281 .arg1 = arg1,
282 .arg2 = arg2,
283 };
284 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
285 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
286 acpi_status status;
287 union acpi_object *obj;
288 u32 tmp = 0;
289
290 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
291 &input, &output);
292
293 if (ACPI_FAILURE(status))
294 return -EIO;
295
296 obj = (union acpi_object *)output.pointer;
297 if (obj && obj->type == ACPI_TYPE_INTEGER)
298 tmp = (u32) obj->integer.value;
299
300 if (retval)
301 *retval = tmp;
302
303 kfree(obj);
304
305 if (tmp == ASUS_WMI_UNSUPPORTED_METHOD)
306 return -ENODEV;
307
308 return 0;
309 }
310
asus_wmi_evaluate_method(u32 method_id,u32 arg0,u32 arg1,u32 * retval)311 int asus_wmi_evaluate_method(u32 method_id, u32 arg0, u32 arg1, u32 *retval)
312 {
313 return asus_wmi_evaluate_method3(method_id, arg0, arg1, 0, retval);
314 }
315 EXPORT_SYMBOL_GPL(asus_wmi_evaluate_method);
316
asus_wmi_evaluate_method5(u32 method_id,u32 arg0,u32 arg1,u32 arg2,u32 arg3,u32 arg4,u32 * retval)317 static int asus_wmi_evaluate_method5(u32 method_id,
318 u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4, u32 *retval)
319 {
320 struct bios_args args = {
321 .arg0 = arg0,
322 .arg1 = arg1,
323 .arg2 = arg2,
324 .arg3 = arg3,
325 .arg4 = arg4,
326 };
327 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
328 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
329 acpi_status status;
330 union acpi_object *obj;
331 u32 tmp = 0;
332
333 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
334 &input, &output);
335
336 if (ACPI_FAILURE(status))
337 return -EIO;
338
339 obj = (union acpi_object *)output.pointer;
340 if (obj && obj->type == ACPI_TYPE_INTEGER)
341 tmp = (u32) obj->integer.value;
342
343 if (retval)
344 *retval = tmp;
345
346 kfree(obj);
347
348 if (tmp == ASUS_WMI_UNSUPPORTED_METHOD)
349 return -ENODEV;
350
351 return 0;
352 }
353
354 /*
355 * Returns as an error if the method output is not a buffer. Typically this
356 * means that the method called is unsupported.
357 */
asus_wmi_evaluate_method_buf(u32 method_id,u32 arg0,u32 arg1,u8 * ret_buffer,size_t size)358 static int asus_wmi_evaluate_method_buf(u32 method_id,
359 u32 arg0, u32 arg1, u8 *ret_buffer, size_t size)
360 {
361 struct bios_args args = {
362 .arg0 = arg0,
363 .arg1 = arg1,
364 .arg2 = 0,
365 };
366 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
367 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
368 acpi_status status;
369 union acpi_object *obj;
370 int err = 0;
371
372 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
373 &input, &output);
374
375 if (ACPI_FAILURE(status))
376 return -EIO;
377
378 obj = (union acpi_object *)output.pointer;
379
380 switch (obj->type) {
381 case ACPI_TYPE_BUFFER:
382 if (obj->buffer.length > size) {
383 err = -ENOSPC;
384 break;
385 }
386 if (obj->buffer.length == 0) {
387 err = -ENODATA;
388 break;
389 }
390
391 memcpy(ret_buffer, obj->buffer.pointer, obj->buffer.length);
392 break;
393 case ACPI_TYPE_INTEGER:
394 err = (u32)obj->integer.value;
395
396 if (err == ASUS_WMI_UNSUPPORTED_METHOD)
397 err = -ENODEV;
398 /*
399 * At least one method returns a 0 with no buffer if no arg
400 * is provided, such as ASUS_WMI_DEVID_CPU_FAN_CURVE
401 */
402 if (err == 0)
403 err = -ENODATA;
404 break;
405 default:
406 err = -ENODATA;
407 break;
408 }
409
410 kfree(obj);
411
412 if (err)
413 return err;
414
415 return 0;
416 }
417
asus_wmi_evaluate_method_agfn(const struct acpi_buffer args)418 static int asus_wmi_evaluate_method_agfn(const struct acpi_buffer args)
419 {
420 struct acpi_buffer input;
421 u64 phys_addr;
422 u32 retval;
423 u32 status;
424
425 /*
426 * Copy to dma capable address otherwise memory corruption occurs as
427 * bios has to be able to access it.
428 */
429 input.pointer = kmemdup(args.pointer, args.length, GFP_DMA | GFP_KERNEL);
430 input.length = args.length;
431 if (!input.pointer)
432 return -ENOMEM;
433 phys_addr = virt_to_phys(input.pointer);
434
435 status = asus_wmi_evaluate_method(ASUS_WMI_METHODID_AGFN,
436 phys_addr, 0, &retval);
437 if (!status)
438 memcpy(args.pointer, input.pointer, args.length);
439
440 kfree(input.pointer);
441 if (status)
442 return -ENXIO;
443
444 return retval;
445 }
446
asus_wmi_get_devstate(struct asus_wmi * asus,u32 dev_id,u32 * retval)447 static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval)
448 {
449 return asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval);
450 }
451
asus_wmi_set_devstate(u32 dev_id,u32 ctrl_param,u32 * retval)452 static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
453 u32 *retval)
454 {
455 return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS, dev_id,
456 ctrl_param, retval);
457 }
458
459 /* Helper for special devices with magic return codes */
asus_wmi_get_devstate_bits(struct asus_wmi * asus,u32 dev_id,u32 mask)460 static int asus_wmi_get_devstate_bits(struct asus_wmi *asus,
461 u32 dev_id, u32 mask)
462 {
463 u32 retval = 0;
464 int err;
465
466 err = asus_wmi_get_devstate(asus, dev_id, &retval);
467 if (err < 0)
468 return err;
469
470 if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT))
471 return -ENODEV;
472
473 if (mask == ASUS_WMI_DSTS_STATUS_BIT) {
474 if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT)
475 return -ENODEV;
476 }
477
478 return retval & mask;
479 }
480
asus_wmi_get_devstate_simple(struct asus_wmi * asus,u32 dev_id)481 static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id)
482 {
483 return asus_wmi_get_devstate_bits(asus, dev_id,
484 ASUS_WMI_DSTS_STATUS_BIT);
485 }
486
asus_wmi_dev_is_present(struct asus_wmi * asus,u32 dev_id)487 static bool asus_wmi_dev_is_present(struct asus_wmi *asus, u32 dev_id)
488 {
489 u32 retval;
490 int status = asus_wmi_get_devstate(asus, dev_id, &retval);
491
492 return status == 0 && (retval & ASUS_WMI_DSTS_PRESENCE_BIT);
493 }
494
495 /* Input **********************************************************************/
asus_wmi_tablet_sw_init(struct asus_wmi * asus,u32 dev_id,int event_code)496 static void asus_wmi_tablet_sw_init(struct asus_wmi *asus, u32 dev_id, int event_code)
497 {
498 struct device *dev = &asus->platform_device->dev;
499 int result;
500
501 result = asus_wmi_get_devstate_simple(asus, dev_id);
502 if (result >= 0) {
503 input_set_capability(asus->inputdev, EV_SW, SW_TABLET_MODE);
504 input_report_switch(asus->inputdev, SW_TABLET_MODE, result);
505 asus->tablet_switch_dev_id = dev_id;
506 asus->tablet_switch_event_code = event_code;
507 } else if (result == -ENODEV) {
508 dev_err(dev, "This device has tablet-mode-switch quirk but got ENODEV checking it. This is a bug.");
509 } else {
510 dev_err(dev, "Error checking for tablet-mode-switch: %d\n", result);
511 }
512 }
513
asus_wmi_input_init(struct asus_wmi * asus)514 static int asus_wmi_input_init(struct asus_wmi *asus)
515 {
516 struct device *dev = &asus->platform_device->dev;
517 int err;
518
519 asus->inputdev = input_allocate_device();
520 if (!asus->inputdev)
521 return -ENOMEM;
522
523 asus->inputdev->name = asus->driver->input_name;
524 asus->inputdev->phys = asus->driver->input_phys;
525 asus->inputdev->id.bustype = BUS_HOST;
526 asus->inputdev->dev.parent = dev;
527 set_bit(EV_REP, asus->inputdev->evbit);
528
529 err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL);
530 if (err)
531 goto err_free_dev;
532
533 switch (asus->driver->quirks->tablet_switch_mode) {
534 case asus_wmi_no_tablet_switch:
535 break;
536 case asus_wmi_kbd_dock_devid:
537 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_KBD_DOCK, NOTIFY_KBD_DOCK_CHANGE);
538 break;
539 case asus_wmi_lid_flip_devid:
540 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_LID_FLIP, NOTIFY_LID_FLIP);
541 break;
542 case asus_wmi_lid_flip_rog_devid:
543 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_LID_FLIP_ROG, NOTIFY_LID_FLIP_ROG);
544 break;
545 }
546
547 err = input_register_device(asus->inputdev);
548 if (err)
549 goto err_free_dev;
550
551 return 0;
552
553 err_free_dev:
554 input_free_device(asus->inputdev);
555 return err;
556 }
557
asus_wmi_input_exit(struct asus_wmi * asus)558 static void asus_wmi_input_exit(struct asus_wmi *asus)
559 {
560 if (asus->inputdev)
561 input_unregister_device(asus->inputdev);
562
563 asus->inputdev = NULL;
564 }
565
566 /* Tablet mode ****************************************************************/
567
asus_wmi_tablet_mode_get_state(struct asus_wmi * asus)568 static void asus_wmi_tablet_mode_get_state(struct asus_wmi *asus)
569 {
570 int result;
571
572 if (!asus->tablet_switch_dev_id)
573 return;
574
575 result = asus_wmi_get_devstate_simple(asus, asus->tablet_switch_dev_id);
576 if (result >= 0) {
577 input_report_switch(asus->inputdev, SW_TABLET_MODE, result);
578 input_sync(asus->inputdev);
579 }
580 }
581
582 /* dGPU ********************************************************************/
dgpu_disable_show(struct device * dev,struct device_attribute * attr,char * buf)583 static ssize_t dgpu_disable_show(struct device *dev,
584 struct device_attribute *attr, char *buf)
585 {
586 struct asus_wmi *asus = dev_get_drvdata(dev);
587 int result;
588
589 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_DGPU);
590 if (result < 0)
591 return result;
592
593 return sysfs_emit(buf, "%d\n", result);
594 }
595
596 /*
597 * A user may be required to store the value twice, typcial store first, then
598 * rescan PCI bus to activate power, then store a second time to save correctly.
599 * The reason for this is that an extra code path in the ACPI is enabled when
600 * the device and bus are powered.
601 */
dgpu_disable_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)602 static ssize_t dgpu_disable_store(struct device *dev,
603 struct device_attribute *attr,
604 const char *buf, size_t count)
605 {
606 int result, err;
607 u32 disable;
608
609 struct asus_wmi *asus = dev_get_drvdata(dev);
610
611 result = kstrtou32(buf, 10, &disable);
612 if (result)
613 return result;
614
615 if (disable > 1)
616 return -EINVAL;
617
618 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_DGPU, disable, &result);
619 if (err) {
620 pr_warn("Failed to set dgpu disable: %d\n", err);
621 return err;
622 }
623
624 if (result > 1) {
625 pr_warn("Failed to set dgpu disable (result): 0x%x\n", result);
626 return -EIO;
627 }
628
629 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "dgpu_disable");
630
631 return count;
632 }
633 static DEVICE_ATTR_RW(dgpu_disable);
634
635 /* eGPU ********************************************************************/
egpu_enable_show(struct device * dev,struct device_attribute * attr,char * buf)636 static ssize_t egpu_enable_show(struct device *dev,
637 struct device_attribute *attr, char *buf)
638 {
639 struct asus_wmi *asus = dev_get_drvdata(dev);
640 int result;
641
642 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU);
643 if (result < 0)
644 return result;
645
646 return sysfs_emit(buf, "%d\n", result);
647 }
648
649 /* The ACPI call to enable the eGPU also disables the internal dGPU */
egpu_enable_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)650 static ssize_t egpu_enable_store(struct device *dev,
651 struct device_attribute *attr,
652 const char *buf, size_t count)
653 {
654 int result, err;
655 u32 enable;
656
657 struct asus_wmi *asus = dev_get_drvdata(dev);
658
659 err = kstrtou32(buf, 10, &enable);
660 if (err)
661 return err;
662
663 if (enable > 1)
664 return -EINVAL;
665
666 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_EGPU, enable, &result);
667 if (err) {
668 pr_warn("Failed to set egpu disable: %d\n", err);
669 return err;
670 }
671
672 if (result > 1) {
673 pr_warn("Failed to set egpu disable (retval): 0x%x\n", result);
674 return -EIO;
675 }
676
677 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "egpu_enable");
678
679 return count;
680 }
681 static DEVICE_ATTR_RW(egpu_enable);
682
683 /* gpu mux switch *************************************************************/
gpu_mux_mode_show(struct device * dev,struct device_attribute * attr,char * buf)684 static ssize_t gpu_mux_mode_show(struct device *dev,
685 struct device_attribute *attr, char *buf)
686 {
687 struct asus_wmi *asus = dev_get_drvdata(dev);
688 int result;
689
690 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPU_MUX);
691 if (result < 0)
692 return result;
693
694 return sysfs_emit(buf, "%d\n", result);
695 }
696
gpu_mux_mode_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)697 static ssize_t gpu_mux_mode_store(struct device *dev,
698 struct device_attribute *attr,
699 const char *buf, size_t count)
700 {
701 struct asus_wmi *asus = dev_get_drvdata(dev);
702 int result, err;
703 u32 optimus;
704
705 err = kstrtou32(buf, 10, &optimus);
706 if (err)
707 return err;
708
709 if (optimus > 1)
710 return -EINVAL;
711
712 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_MUX, optimus, &result);
713 if (err) {
714 dev_err(dev, "Failed to set GPU MUX mode: %d\n", err);
715 return err;
716 }
717 /* !1 is considered a fail by ASUS */
718 if (result != 1) {
719 dev_warn(dev, "Failed to set GPU MUX mode (result): 0x%x\n", result);
720 return -EIO;
721 }
722
723 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "gpu_mux_mode");
724
725 return count;
726 }
727 static DEVICE_ATTR_RW(gpu_mux_mode);
728
729 /* TUF Laptop Keyboard RGB Modes **********************************************/
kbd_rgb_mode_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)730 static ssize_t kbd_rgb_mode_store(struct device *dev,
731 struct device_attribute *attr,
732 const char *buf, size_t count)
733 {
734 u32 cmd, mode, r, g, b, speed;
735 int err;
736
737 if (sscanf(buf, "%d %d %d %d %d %d", &cmd, &mode, &r, &g, &b, &speed) != 6)
738 return -EINVAL;
739
740 cmd = !!cmd;
741
742 /* These are the known usable modes across all TUF/ROG */
743 if (mode >= 12 || mode == 9)
744 mode = 10;
745
746 switch (speed) {
747 case 0:
748 speed = 0xe1;
749 break;
750 case 1:
751 speed = 0xeb;
752 break;
753 case 2:
754 speed = 0xf5;
755 break;
756 default:
757 speed = 0xeb;
758 }
759
760 err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS, ASUS_WMI_DEVID_TUF_RGB_MODE,
761 cmd | (mode << 8) | (r << 16) | (g << 24), b | (speed << 8), NULL);
762 if (err)
763 return err;
764
765 return count;
766 }
767 static DEVICE_ATTR_WO(kbd_rgb_mode);
768
kbd_rgb_mode_index_show(struct device * device,struct device_attribute * attr,char * buf)769 static ssize_t kbd_rgb_mode_index_show(struct device *device,
770 struct device_attribute *attr,
771 char *buf)
772 {
773 return sysfs_emit(buf, "%s\n", "cmd mode red green blue speed");
774 }
775 static DEVICE_ATTR_RO(kbd_rgb_mode_index);
776
777 static struct attribute *kbd_rgb_mode_attrs[] = {
778 &dev_attr_kbd_rgb_mode.attr,
779 &dev_attr_kbd_rgb_mode_index.attr,
780 NULL,
781 };
782
783 static const struct attribute_group kbd_rgb_mode_group = {
784 .attrs = kbd_rgb_mode_attrs,
785 };
786
787 /* TUF Laptop Keyboard RGB State **********************************************/
kbd_rgb_state_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)788 static ssize_t kbd_rgb_state_store(struct device *dev,
789 struct device_attribute *attr,
790 const char *buf, size_t count)
791 {
792 u32 flags, cmd, boot, awake, sleep, keyboard;
793 int err;
794
795 if (sscanf(buf, "%d %d %d %d %d", &cmd, &boot, &awake, &sleep, &keyboard) != 5)
796 return -EINVAL;
797
798 if (cmd)
799 cmd = BIT(2);
800
801 flags = 0;
802 if (boot)
803 flags |= BIT(1);
804 if (awake)
805 flags |= BIT(3);
806 if (sleep)
807 flags |= BIT(5);
808 if (keyboard)
809 flags |= BIT(7);
810
811 /* 0xbd is the required default arg0 for the method. Nothing happens otherwise */
812 err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS,
813 ASUS_WMI_DEVID_TUF_RGB_STATE, 0xbd | cmd << 8 | (flags << 16), 0, NULL);
814 if (err)
815 return err;
816
817 return count;
818 }
819 static DEVICE_ATTR_WO(kbd_rgb_state);
820
kbd_rgb_state_index_show(struct device * device,struct device_attribute * attr,char * buf)821 static ssize_t kbd_rgb_state_index_show(struct device *device,
822 struct device_attribute *attr,
823 char *buf)
824 {
825 return sysfs_emit(buf, "%s\n", "cmd boot awake sleep keyboard");
826 }
827 static DEVICE_ATTR_RO(kbd_rgb_state_index);
828
829 static struct attribute *kbd_rgb_state_attrs[] = {
830 &dev_attr_kbd_rgb_state.attr,
831 &dev_attr_kbd_rgb_state_index.attr,
832 NULL,
833 };
834
835 static const struct attribute_group kbd_rgb_state_group = {
836 .attrs = kbd_rgb_state_attrs,
837 };
838
839 static const struct attribute_group *kbd_rgb_mode_groups[] = {
840 NULL,
841 NULL,
842 NULL,
843 };
844
845 /* Battery ********************************************************************/
846
847 /* The battery maximum charging percentage */
848 static int charge_end_threshold;
849
charge_control_end_threshold_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)850 static ssize_t charge_control_end_threshold_store(struct device *dev,
851 struct device_attribute *attr,
852 const char *buf, size_t count)
853 {
854 int value, ret, rv;
855
856 ret = kstrtouint(buf, 10, &value);
857 if (ret)
858 return ret;
859
860 if (value < 0 || value > 100)
861 return -EINVAL;
862
863 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_RSOC, value, &rv);
864 if (ret)
865 return ret;
866
867 if (rv != 1)
868 return -EIO;
869
870 /* There isn't any method in the DSDT to read the threshold, so we
871 * save the threshold.
872 */
873 charge_end_threshold = value;
874 return count;
875 }
876
charge_control_end_threshold_show(struct device * device,struct device_attribute * attr,char * buf)877 static ssize_t charge_control_end_threshold_show(struct device *device,
878 struct device_attribute *attr,
879 char *buf)
880 {
881 return sysfs_emit(buf, "%d\n", charge_end_threshold);
882 }
883
884 static DEVICE_ATTR_RW(charge_control_end_threshold);
885
asus_wmi_battery_add(struct power_supply * battery)886 static int asus_wmi_battery_add(struct power_supply *battery)
887 {
888 /* The WMI method does not provide a way to specific a battery, so we
889 * just assume it is the first battery.
890 * Note: On some newer ASUS laptops (Zenbook UM431DA), the primary/first
891 * battery is named BATT.
892 */
893 if (strcmp(battery->desc->name, "BAT0") != 0 &&
894 strcmp(battery->desc->name, "BAT1") != 0 &&
895 strcmp(battery->desc->name, "BATC") != 0 &&
896 strcmp(battery->desc->name, "BATT") != 0)
897 return -ENODEV;
898
899 if (device_create_file(&battery->dev,
900 &dev_attr_charge_control_end_threshold))
901 return -ENODEV;
902
903 /* The charge threshold is only reset when the system is power cycled,
904 * and we can't get the current threshold so let set it to 100% when
905 * a battery is added.
906 */
907 asus_wmi_set_devstate(ASUS_WMI_DEVID_RSOC, 100, NULL);
908 charge_end_threshold = 100;
909
910 return 0;
911 }
912
asus_wmi_battery_remove(struct power_supply * battery)913 static int asus_wmi_battery_remove(struct power_supply *battery)
914 {
915 device_remove_file(&battery->dev,
916 &dev_attr_charge_control_end_threshold);
917 return 0;
918 }
919
920 static struct acpi_battery_hook battery_hook = {
921 .add_battery = asus_wmi_battery_add,
922 .remove_battery = asus_wmi_battery_remove,
923 .name = "ASUS Battery Extension",
924 };
925
asus_wmi_battery_init(struct asus_wmi * asus)926 static void asus_wmi_battery_init(struct asus_wmi *asus)
927 {
928 asus->battery_rsoc_available = false;
929 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_RSOC)) {
930 asus->battery_rsoc_available = true;
931 battery_hook_register(&battery_hook);
932 }
933 }
934
asus_wmi_battery_exit(struct asus_wmi * asus)935 static void asus_wmi_battery_exit(struct asus_wmi *asus)
936 {
937 if (asus->battery_rsoc_available)
938 battery_hook_unregister(&battery_hook);
939 }
940
941 /* LEDs ***********************************************************************/
942
943 /*
944 * These functions actually update the LED's, and are called from a
945 * workqueue. By doing this as separate work rather than when the LED
946 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
947 * potentially bad time, such as a timer interrupt.
948 */
tpd_led_update(struct work_struct * work)949 static void tpd_led_update(struct work_struct *work)
950 {
951 int ctrl_param;
952 struct asus_wmi *asus;
953
954 asus = container_of(work, struct asus_wmi, tpd_led_work);
955
956 ctrl_param = asus->tpd_led_wk;
957 asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
958 }
959
tpd_led_set(struct led_classdev * led_cdev,enum led_brightness value)960 static void tpd_led_set(struct led_classdev *led_cdev,
961 enum led_brightness value)
962 {
963 struct asus_wmi *asus;
964
965 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
966
967 asus->tpd_led_wk = !!value;
968 queue_work(asus->led_workqueue, &asus->tpd_led_work);
969 }
970
read_tpd_led_state(struct asus_wmi * asus)971 static int read_tpd_led_state(struct asus_wmi *asus)
972 {
973 return asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_TOUCHPAD_LED);
974 }
975
tpd_led_get(struct led_classdev * led_cdev)976 static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
977 {
978 struct asus_wmi *asus;
979
980 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
981
982 return read_tpd_led_state(asus);
983 }
984
kbd_led_update(struct asus_wmi * asus)985 static void kbd_led_update(struct asus_wmi *asus)
986 {
987 int ctrl_param = 0;
988
989 ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F);
990 asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL);
991 }
992
kbd_led_read(struct asus_wmi * asus,int * level,int * env)993 static int kbd_led_read(struct asus_wmi *asus, int *level, int *env)
994 {
995 int retval;
996
997 /*
998 * bits 0-2: level
999 * bit 7: light on/off
1000 * bit 8-10: environment (0: dark, 1: normal, 2: light)
1001 * bit 17: status unknown
1002 */
1003 retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT,
1004 0xFFFF);
1005
1006 /* Unknown status is considered as off */
1007 if (retval == 0x8000)
1008 retval = 0;
1009
1010 if (retval < 0)
1011 return retval;
1012
1013 if (level)
1014 *level = retval & 0x7F;
1015 if (env)
1016 *env = (retval >> 8) & 0x7F;
1017 return 0;
1018 }
1019
do_kbd_led_set(struct led_classdev * led_cdev,int value)1020 static void do_kbd_led_set(struct led_classdev *led_cdev, int value)
1021 {
1022 struct asus_wmi *asus;
1023 int max_level;
1024
1025 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
1026 max_level = asus->kbd_led.max_brightness;
1027
1028 asus->kbd_led_wk = clamp_val(value, 0, max_level);
1029 kbd_led_update(asus);
1030 }
1031
kbd_led_set(struct led_classdev * led_cdev,enum led_brightness value)1032 static void kbd_led_set(struct led_classdev *led_cdev,
1033 enum led_brightness value)
1034 {
1035 /* Prevent disabling keyboard backlight on module unregister */
1036 if (led_cdev->flags & LED_UNREGISTERING)
1037 return;
1038
1039 do_kbd_led_set(led_cdev, value);
1040 }
1041
kbd_led_set_by_kbd(struct asus_wmi * asus,enum led_brightness value)1042 static void kbd_led_set_by_kbd(struct asus_wmi *asus, enum led_brightness value)
1043 {
1044 struct led_classdev *led_cdev = &asus->kbd_led;
1045
1046 do_kbd_led_set(led_cdev, value);
1047 led_classdev_notify_brightness_hw_changed(led_cdev, asus->kbd_led_wk);
1048 }
1049
kbd_led_get(struct led_classdev * led_cdev)1050 static enum led_brightness kbd_led_get(struct led_classdev *led_cdev)
1051 {
1052 struct asus_wmi *asus;
1053 int retval, value;
1054
1055 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
1056
1057 retval = kbd_led_read(asus, &value, NULL);
1058 if (retval < 0)
1059 return retval;
1060
1061 return value;
1062 }
1063
wlan_led_unknown_state(struct asus_wmi * asus)1064 static int wlan_led_unknown_state(struct asus_wmi *asus)
1065 {
1066 u32 result;
1067
1068 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
1069
1070 return result & ASUS_WMI_DSTS_UNKNOWN_BIT;
1071 }
1072
wlan_led_update(struct work_struct * work)1073 static void wlan_led_update(struct work_struct *work)
1074 {
1075 int ctrl_param;
1076 struct asus_wmi *asus;
1077
1078 asus = container_of(work, struct asus_wmi, wlan_led_work);
1079
1080 ctrl_param = asus->wlan_led_wk;
1081 asus_wmi_set_devstate(ASUS_WMI_DEVID_WIRELESS_LED, ctrl_param, NULL);
1082 }
1083
wlan_led_set(struct led_classdev * led_cdev,enum led_brightness value)1084 static void wlan_led_set(struct led_classdev *led_cdev,
1085 enum led_brightness value)
1086 {
1087 struct asus_wmi *asus;
1088
1089 asus = container_of(led_cdev, struct asus_wmi, wlan_led);
1090
1091 asus->wlan_led_wk = !!value;
1092 queue_work(asus->led_workqueue, &asus->wlan_led_work);
1093 }
1094
wlan_led_get(struct led_classdev * led_cdev)1095 static enum led_brightness wlan_led_get(struct led_classdev *led_cdev)
1096 {
1097 struct asus_wmi *asus;
1098 u32 result;
1099
1100 asus = container_of(led_cdev, struct asus_wmi, wlan_led);
1101 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
1102
1103 return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
1104 }
1105
lightbar_led_update(struct work_struct * work)1106 static void lightbar_led_update(struct work_struct *work)
1107 {
1108 struct asus_wmi *asus;
1109 int ctrl_param;
1110
1111 asus = container_of(work, struct asus_wmi, lightbar_led_work);
1112
1113 ctrl_param = asus->lightbar_led_wk;
1114 asus_wmi_set_devstate(ASUS_WMI_DEVID_LIGHTBAR, ctrl_param, NULL);
1115 }
1116
lightbar_led_set(struct led_classdev * led_cdev,enum led_brightness value)1117 static void lightbar_led_set(struct led_classdev *led_cdev,
1118 enum led_brightness value)
1119 {
1120 struct asus_wmi *asus;
1121
1122 asus = container_of(led_cdev, struct asus_wmi, lightbar_led);
1123
1124 asus->lightbar_led_wk = !!value;
1125 queue_work(asus->led_workqueue, &asus->lightbar_led_work);
1126 }
1127
lightbar_led_get(struct led_classdev * led_cdev)1128 static enum led_brightness lightbar_led_get(struct led_classdev *led_cdev)
1129 {
1130 struct asus_wmi *asus;
1131 u32 result;
1132
1133 asus = container_of(led_cdev, struct asus_wmi, lightbar_led);
1134 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_LIGHTBAR, &result);
1135
1136 return result & ASUS_WMI_DSTS_LIGHTBAR_MASK;
1137 }
1138
micmute_led_set(struct led_classdev * led_cdev,enum led_brightness brightness)1139 static int micmute_led_set(struct led_classdev *led_cdev,
1140 enum led_brightness brightness)
1141 {
1142 int state = brightness != LED_OFF;
1143 int err;
1144
1145 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MICMUTE_LED, state, NULL);
1146 return err < 0 ? err : 0;
1147 }
1148
asus_wmi_led_exit(struct asus_wmi * asus)1149 static void asus_wmi_led_exit(struct asus_wmi *asus)
1150 {
1151 led_classdev_unregister(&asus->kbd_led);
1152 led_classdev_unregister(&asus->tpd_led);
1153 led_classdev_unregister(&asus->wlan_led);
1154 led_classdev_unregister(&asus->lightbar_led);
1155 led_classdev_unregister(&asus->micmute_led);
1156
1157 if (asus->led_workqueue)
1158 destroy_workqueue(asus->led_workqueue);
1159 }
1160
asus_wmi_led_init(struct asus_wmi * asus)1161 static int asus_wmi_led_init(struct asus_wmi *asus)
1162 {
1163 int rv = 0, num_rgb_groups = 0, led_val;
1164
1165 if (asus->kbd_rgb_mode_available)
1166 kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_mode_group;
1167 if (asus->kbd_rgb_state_available)
1168 kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_state_group;
1169
1170 asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
1171 if (!asus->led_workqueue)
1172 return -ENOMEM;
1173
1174 if (read_tpd_led_state(asus) >= 0) {
1175 INIT_WORK(&asus->tpd_led_work, tpd_led_update);
1176
1177 asus->tpd_led.name = "asus::touchpad";
1178 asus->tpd_led.brightness_set = tpd_led_set;
1179 asus->tpd_led.brightness_get = tpd_led_get;
1180 asus->tpd_led.max_brightness = 1;
1181
1182 rv = led_classdev_register(&asus->platform_device->dev,
1183 &asus->tpd_led);
1184 if (rv)
1185 goto error;
1186 }
1187
1188 if (!kbd_led_read(asus, &led_val, NULL)) {
1189 asus->kbd_led_wk = led_val;
1190 asus->kbd_led.name = "asus::kbd_backlight";
1191 asus->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
1192 asus->kbd_led.brightness_set = kbd_led_set;
1193 asus->kbd_led.brightness_get = kbd_led_get;
1194 asus->kbd_led.max_brightness = 3;
1195
1196 if (num_rgb_groups != 0)
1197 asus->kbd_led.groups = kbd_rgb_mode_groups;
1198
1199 rv = led_classdev_register(&asus->platform_device->dev,
1200 &asus->kbd_led);
1201 if (rv)
1202 goto error;
1203 }
1204
1205 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_WIRELESS_LED)
1206 && (asus->driver->quirks->wapf > 0)) {
1207 INIT_WORK(&asus->wlan_led_work, wlan_led_update);
1208
1209 asus->wlan_led.name = "asus::wlan";
1210 asus->wlan_led.brightness_set = wlan_led_set;
1211 if (!wlan_led_unknown_state(asus))
1212 asus->wlan_led.brightness_get = wlan_led_get;
1213 asus->wlan_led.flags = LED_CORE_SUSPENDRESUME;
1214 asus->wlan_led.max_brightness = 1;
1215 asus->wlan_led.default_trigger = "asus-wlan";
1216
1217 rv = led_classdev_register(&asus->platform_device->dev,
1218 &asus->wlan_led);
1219 if (rv)
1220 goto error;
1221 }
1222
1223 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_LIGHTBAR)) {
1224 INIT_WORK(&asus->lightbar_led_work, lightbar_led_update);
1225
1226 asus->lightbar_led.name = "asus::lightbar";
1227 asus->lightbar_led.brightness_set = lightbar_led_set;
1228 asus->lightbar_led.brightness_get = lightbar_led_get;
1229 asus->lightbar_led.max_brightness = 1;
1230
1231 rv = led_classdev_register(&asus->platform_device->dev,
1232 &asus->lightbar_led);
1233 }
1234
1235 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MICMUTE_LED)) {
1236 asus->micmute_led.name = "platform::micmute";
1237 asus->micmute_led.max_brightness = 1;
1238 asus->micmute_led.brightness = ledtrig_audio_get(LED_AUDIO_MICMUTE);
1239 asus->micmute_led.brightness_set_blocking = micmute_led_set;
1240 asus->micmute_led.default_trigger = "audio-micmute";
1241
1242 rv = led_classdev_register(&asus->platform_device->dev,
1243 &asus->micmute_led);
1244 if (rv)
1245 goto error;
1246 }
1247
1248 error:
1249 if (rv)
1250 asus_wmi_led_exit(asus);
1251
1252 return rv;
1253 }
1254
1255 /* RF *************************************************************************/
1256
1257 /*
1258 * PCI hotplug (for wlan rfkill)
1259 */
asus_wlan_rfkill_blocked(struct asus_wmi * asus)1260 static bool asus_wlan_rfkill_blocked(struct asus_wmi *asus)
1261 {
1262 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
1263
1264 if (result < 0)
1265 return false;
1266 return !result;
1267 }
1268
asus_rfkill_hotplug(struct asus_wmi * asus)1269 static void asus_rfkill_hotplug(struct asus_wmi *asus)
1270 {
1271 struct pci_dev *dev;
1272 struct pci_bus *bus;
1273 bool blocked;
1274 bool absent;
1275 u32 l;
1276
1277 mutex_lock(&asus->wmi_lock);
1278 blocked = asus_wlan_rfkill_blocked(asus);
1279 mutex_unlock(&asus->wmi_lock);
1280
1281 mutex_lock(&asus->hotplug_lock);
1282 pci_lock_rescan_remove();
1283
1284 if (asus->wlan.rfkill)
1285 rfkill_set_sw_state(asus->wlan.rfkill, blocked);
1286
1287 if (asus->hotplug_slot.ops) {
1288 bus = pci_find_bus(0, 1);
1289 if (!bus) {
1290 pr_warn("Unable to find PCI bus 1?\n");
1291 goto out_unlock;
1292 }
1293
1294 if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
1295 pr_err("Unable to read PCI config space?\n");
1296 goto out_unlock;
1297 }
1298 absent = (l == 0xffffffff);
1299
1300 if (blocked != absent) {
1301 pr_warn("BIOS says wireless lan is %s, but the pci device is %s\n",
1302 blocked ? "blocked" : "unblocked",
1303 absent ? "absent" : "present");
1304 pr_warn("skipped wireless hotplug as probably inappropriate for this model\n");
1305 goto out_unlock;
1306 }
1307
1308 if (!blocked) {
1309 dev = pci_get_slot(bus, 0);
1310 if (dev) {
1311 /* Device already present */
1312 pci_dev_put(dev);
1313 goto out_unlock;
1314 }
1315 dev = pci_scan_single_device(bus, 0);
1316 if (dev) {
1317 pci_bus_assign_resources(bus);
1318 pci_bus_add_device(dev);
1319 }
1320 } else {
1321 dev = pci_get_slot(bus, 0);
1322 if (dev) {
1323 pci_stop_and_remove_bus_device(dev);
1324 pci_dev_put(dev);
1325 }
1326 }
1327 }
1328
1329 out_unlock:
1330 pci_unlock_rescan_remove();
1331 mutex_unlock(&asus->hotplug_lock);
1332 }
1333
asus_rfkill_notify(acpi_handle handle,u32 event,void * data)1334 static void asus_rfkill_notify(acpi_handle handle, u32 event, void *data)
1335 {
1336 struct asus_wmi *asus = data;
1337
1338 if (event != ACPI_NOTIFY_BUS_CHECK)
1339 return;
1340
1341 /*
1342 * We can't call directly asus_rfkill_hotplug because most
1343 * of the time WMBC is still being executed and not reetrant.
1344 * There is currently no way to tell ACPICA that we want this
1345 * method to be serialized, we schedule a asus_rfkill_hotplug
1346 * call later, in a safer context.
1347 */
1348 queue_work(asus->hotplug_workqueue, &asus->hotplug_work);
1349 }
1350
asus_register_rfkill_notifier(struct asus_wmi * asus,char * node)1351 static int asus_register_rfkill_notifier(struct asus_wmi *asus, char *node)
1352 {
1353 acpi_status status;
1354 acpi_handle handle;
1355
1356 status = acpi_get_handle(NULL, node, &handle);
1357 if (ACPI_FAILURE(status))
1358 return -ENODEV;
1359
1360 status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
1361 asus_rfkill_notify, asus);
1362 if (ACPI_FAILURE(status))
1363 pr_warn("Failed to register notify on %s\n", node);
1364
1365 return 0;
1366 }
1367
asus_unregister_rfkill_notifier(struct asus_wmi * asus,char * node)1368 static void asus_unregister_rfkill_notifier(struct asus_wmi *asus, char *node)
1369 {
1370 acpi_status status = AE_OK;
1371 acpi_handle handle;
1372
1373 status = acpi_get_handle(NULL, node, &handle);
1374 if (ACPI_FAILURE(status))
1375 return;
1376
1377 status = acpi_remove_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
1378 asus_rfkill_notify);
1379 if (ACPI_FAILURE(status))
1380 pr_err("Error removing rfkill notify handler %s\n", node);
1381 }
1382
asus_get_adapter_status(struct hotplug_slot * hotplug_slot,u8 * value)1383 static int asus_get_adapter_status(struct hotplug_slot *hotplug_slot,
1384 u8 *value)
1385 {
1386 struct asus_wmi *asus = container_of(hotplug_slot,
1387 struct asus_wmi, hotplug_slot);
1388 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
1389
1390 if (result < 0)
1391 return result;
1392
1393 *value = !!result;
1394 return 0;
1395 }
1396
1397 static const struct hotplug_slot_ops asus_hotplug_slot_ops = {
1398 .get_adapter_status = asus_get_adapter_status,
1399 .get_power_status = asus_get_adapter_status,
1400 };
1401
asus_hotplug_work(struct work_struct * work)1402 static void asus_hotplug_work(struct work_struct *work)
1403 {
1404 struct asus_wmi *asus;
1405
1406 asus = container_of(work, struct asus_wmi, hotplug_work);
1407 asus_rfkill_hotplug(asus);
1408 }
1409
asus_setup_pci_hotplug(struct asus_wmi * asus)1410 static int asus_setup_pci_hotplug(struct asus_wmi *asus)
1411 {
1412 int ret = -ENOMEM;
1413 struct pci_bus *bus = pci_find_bus(0, 1);
1414
1415 if (!bus) {
1416 pr_err("Unable to find wifi PCI bus\n");
1417 return -ENODEV;
1418 }
1419
1420 asus->hotplug_workqueue =
1421 create_singlethread_workqueue("hotplug_workqueue");
1422 if (!asus->hotplug_workqueue)
1423 goto error_workqueue;
1424
1425 INIT_WORK(&asus->hotplug_work, asus_hotplug_work);
1426
1427 asus->hotplug_slot.ops = &asus_hotplug_slot_ops;
1428
1429 ret = pci_hp_register(&asus->hotplug_slot, bus, 0, "asus-wifi");
1430 if (ret) {
1431 pr_err("Unable to register hotplug slot - %d\n", ret);
1432 goto error_register;
1433 }
1434
1435 return 0;
1436
1437 error_register:
1438 asus->hotplug_slot.ops = NULL;
1439 destroy_workqueue(asus->hotplug_workqueue);
1440 error_workqueue:
1441 return ret;
1442 }
1443
1444 /*
1445 * Rfkill devices
1446 */
asus_rfkill_set(void * data,bool blocked)1447 static int asus_rfkill_set(void *data, bool blocked)
1448 {
1449 struct asus_rfkill *priv = data;
1450 u32 ctrl_param = !blocked;
1451 u32 dev_id = priv->dev_id;
1452
1453 /*
1454 * If the user bit is set, BIOS can't set and record the wlan status,
1455 * it will report the value read from id ASUS_WMI_DEVID_WLAN_LED
1456 * while we query the wlan status through WMI(ASUS_WMI_DEVID_WLAN).
1457 * So, we have to record wlan status in id ASUS_WMI_DEVID_WLAN_LED
1458 * while setting the wlan status through WMI.
1459 * This is also the behavior that windows app will do.
1460 */
1461 if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
1462 priv->asus->driver->wlan_ctrl_by_user)
1463 dev_id = ASUS_WMI_DEVID_WLAN_LED;
1464
1465 return asus_wmi_set_devstate(dev_id, ctrl_param, NULL);
1466 }
1467
asus_rfkill_query(struct rfkill * rfkill,void * data)1468 static void asus_rfkill_query(struct rfkill *rfkill, void *data)
1469 {
1470 struct asus_rfkill *priv = data;
1471 int result;
1472
1473 result = asus_wmi_get_devstate_simple(priv->asus, priv->dev_id);
1474
1475 if (result < 0)
1476 return;
1477
1478 rfkill_set_sw_state(priv->rfkill, !result);
1479 }
1480
asus_rfkill_wlan_set(void * data,bool blocked)1481 static int asus_rfkill_wlan_set(void *data, bool blocked)
1482 {
1483 struct asus_rfkill *priv = data;
1484 struct asus_wmi *asus = priv->asus;
1485 int ret;
1486
1487 /*
1488 * This handler is enabled only if hotplug is enabled.
1489 * In this case, the asus_wmi_set_devstate() will
1490 * trigger a wmi notification and we need to wait
1491 * this call to finish before being able to call
1492 * any wmi method
1493 */
1494 mutex_lock(&asus->wmi_lock);
1495 ret = asus_rfkill_set(data, blocked);
1496 mutex_unlock(&asus->wmi_lock);
1497 return ret;
1498 }
1499
1500 static const struct rfkill_ops asus_rfkill_wlan_ops = {
1501 .set_block = asus_rfkill_wlan_set,
1502 .query = asus_rfkill_query,
1503 };
1504
1505 static const struct rfkill_ops asus_rfkill_ops = {
1506 .set_block = asus_rfkill_set,
1507 .query = asus_rfkill_query,
1508 };
1509
asus_new_rfkill(struct asus_wmi * asus,struct asus_rfkill * arfkill,const char * name,enum rfkill_type type,int dev_id)1510 static int asus_new_rfkill(struct asus_wmi *asus,
1511 struct asus_rfkill *arfkill,
1512 const char *name, enum rfkill_type type, int dev_id)
1513 {
1514 int result = asus_wmi_get_devstate_simple(asus, dev_id);
1515 struct rfkill **rfkill = &arfkill->rfkill;
1516
1517 if (result < 0)
1518 return result;
1519
1520 arfkill->dev_id = dev_id;
1521 arfkill->asus = asus;
1522
1523 if (dev_id == ASUS_WMI_DEVID_WLAN &&
1524 asus->driver->quirks->hotplug_wireless)
1525 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
1526 &asus_rfkill_wlan_ops, arfkill);
1527 else
1528 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
1529 &asus_rfkill_ops, arfkill);
1530
1531 if (!*rfkill)
1532 return -EINVAL;
1533
1534 if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
1535 (asus->driver->quirks->wapf > 0))
1536 rfkill_set_led_trigger_name(*rfkill, "asus-wlan");
1537
1538 rfkill_init_sw_state(*rfkill, !result);
1539 result = rfkill_register(*rfkill);
1540 if (result) {
1541 rfkill_destroy(*rfkill);
1542 *rfkill = NULL;
1543 return result;
1544 }
1545 return 0;
1546 }
1547
asus_wmi_rfkill_exit(struct asus_wmi * asus)1548 static void asus_wmi_rfkill_exit(struct asus_wmi *asus)
1549 {
1550 if (asus->driver->wlan_ctrl_by_user && ashs_present())
1551 return;
1552
1553 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
1554 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
1555 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
1556 if (asus->wlan.rfkill) {
1557 rfkill_unregister(asus->wlan.rfkill);
1558 rfkill_destroy(asus->wlan.rfkill);
1559 asus->wlan.rfkill = NULL;
1560 }
1561 /*
1562 * Refresh pci hotplug in case the rfkill state was changed after
1563 * asus_unregister_rfkill_notifier()
1564 */
1565 asus_rfkill_hotplug(asus);
1566 if (asus->hotplug_slot.ops)
1567 pci_hp_deregister(&asus->hotplug_slot);
1568 if (asus->hotplug_workqueue)
1569 destroy_workqueue(asus->hotplug_workqueue);
1570
1571 if (asus->bluetooth.rfkill) {
1572 rfkill_unregister(asus->bluetooth.rfkill);
1573 rfkill_destroy(asus->bluetooth.rfkill);
1574 asus->bluetooth.rfkill = NULL;
1575 }
1576 if (asus->wimax.rfkill) {
1577 rfkill_unregister(asus->wimax.rfkill);
1578 rfkill_destroy(asus->wimax.rfkill);
1579 asus->wimax.rfkill = NULL;
1580 }
1581 if (asus->wwan3g.rfkill) {
1582 rfkill_unregister(asus->wwan3g.rfkill);
1583 rfkill_destroy(asus->wwan3g.rfkill);
1584 asus->wwan3g.rfkill = NULL;
1585 }
1586 if (asus->gps.rfkill) {
1587 rfkill_unregister(asus->gps.rfkill);
1588 rfkill_destroy(asus->gps.rfkill);
1589 asus->gps.rfkill = NULL;
1590 }
1591 if (asus->uwb.rfkill) {
1592 rfkill_unregister(asus->uwb.rfkill);
1593 rfkill_destroy(asus->uwb.rfkill);
1594 asus->uwb.rfkill = NULL;
1595 }
1596 }
1597
asus_wmi_rfkill_init(struct asus_wmi * asus)1598 static int asus_wmi_rfkill_init(struct asus_wmi *asus)
1599 {
1600 int result = 0;
1601
1602 mutex_init(&asus->hotplug_lock);
1603 mutex_init(&asus->wmi_lock);
1604
1605 result = asus_new_rfkill(asus, &asus->wlan, "asus-wlan",
1606 RFKILL_TYPE_WLAN, ASUS_WMI_DEVID_WLAN);
1607
1608 if (result && result != -ENODEV)
1609 goto exit;
1610
1611 result = asus_new_rfkill(asus, &asus->bluetooth,
1612 "asus-bluetooth", RFKILL_TYPE_BLUETOOTH,
1613 ASUS_WMI_DEVID_BLUETOOTH);
1614
1615 if (result && result != -ENODEV)
1616 goto exit;
1617
1618 result = asus_new_rfkill(asus, &asus->wimax, "asus-wimax",
1619 RFKILL_TYPE_WIMAX, ASUS_WMI_DEVID_WIMAX);
1620
1621 if (result && result != -ENODEV)
1622 goto exit;
1623
1624 result = asus_new_rfkill(asus, &asus->wwan3g, "asus-wwan3g",
1625 RFKILL_TYPE_WWAN, ASUS_WMI_DEVID_WWAN3G);
1626
1627 if (result && result != -ENODEV)
1628 goto exit;
1629
1630 result = asus_new_rfkill(asus, &asus->gps, "asus-gps",
1631 RFKILL_TYPE_GPS, ASUS_WMI_DEVID_GPS);
1632
1633 if (result && result != -ENODEV)
1634 goto exit;
1635
1636 result = asus_new_rfkill(asus, &asus->uwb, "asus-uwb",
1637 RFKILL_TYPE_UWB, ASUS_WMI_DEVID_UWB);
1638
1639 if (result && result != -ENODEV)
1640 goto exit;
1641
1642 if (!asus->driver->quirks->hotplug_wireless)
1643 goto exit;
1644
1645 result = asus_setup_pci_hotplug(asus);
1646 /*
1647 * If we get -EBUSY then something else is handling the PCI hotplug -
1648 * don't fail in this case
1649 */
1650 if (result == -EBUSY)
1651 result = 0;
1652
1653 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
1654 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
1655 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
1656 /*
1657 * Refresh pci hotplug in case the rfkill state was changed during
1658 * setup.
1659 */
1660 asus_rfkill_hotplug(asus);
1661
1662 exit:
1663 if (result && result != -ENODEV)
1664 asus_wmi_rfkill_exit(asus);
1665
1666 if (result == -ENODEV)
1667 result = 0;
1668
1669 return result;
1670 }
1671
1672 /* Panel Overdrive ************************************************************/
panel_od_show(struct device * dev,struct device_attribute * attr,char * buf)1673 static ssize_t panel_od_show(struct device *dev,
1674 struct device_attribute *attr, char *buf)
1675 {
1676 struct asus_wmi *asus = dev_get_drvdata(dev);
1677 int result;
1678
1679 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_PANEL_OD);
1680 if (result < 0)
1681 return result;
1682
1683 return sysfs_emit(buf, "%d\n", result);
1684 }
1685
panel_od_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1686 static ssize_t panel_od_store(struct device *dev,
1687 struct device_attribute *attr,
1688 const char *buf, size_t count)
1689 {
1690 int result, err;
1691 u32 overdrive;
1692
1693 struct asus_wmi *asus = dev_get_drvdata(dev);
1694
1695 result = kstrtou32(buf, 10, &overdrive);
1696 if (result)
1697 return result;
1698
1699 if (overdrive > 1)
1700 return -EINVAL;
1701
1702 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PANEL_OD, overdrive, &result);
1703
1704 if (err) {
1705 pr_warn("Failed to set panel overdrive: %d\n", err);
1706 return err;
1707 }
1708
1709 if (result > 1) {
1710 pr_warn("Failed to set panel overdrive (result): 0x%x\n", result);
1711 return -EIO;
1712 }
1713
1714 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "panel_od");
1715
1716 return count;
1717 }
1718 static DEVICE_ATTR_RW(panel_od);
1719
1720 /* Quirks *********************************************************************/
1721
asus_wmi_set_xusb2pr(struct asus_wmi * asus)1722 static void asus_wmi_set_xusb2pr(struct asus_wmi *asus)
1723 {
1724 struct pci_dev *xhci_pdev;
1725 u32 orig_ports_available;
1726 u32 ports_available = asus->driver->quirks->xusb2pr;
1727
1728 xhci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
1729 PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI,
1730 NULL);
1731
1732 if (!xhci_pdev)
1733 return;
1734
1735 pci_read_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
1736 &orig_ports_available);
1737
1738 pci_write_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
1739 cpu_to_le32(ports_available));
1740
1741 pci_dev_put(xhci_pdev);
1742
1743 pr_info("set USB_INTEL_XUSB2PR old: 0x%04x, new: 0x%04x\n",
1744 orig_ports_available, ports_available);
1745 }
1746
1747 /*
1748 * Some devices dont support or have borcken get_als method
1749 * but still support set method.
1750 */
asus_wmi_set_als(void)1751 static void asus_wmi_set_als(void)
1752 {
1753 asus_wmi_set_devstate(ASUS_WMI_DEVID_ALS_ENABLE, 1, NULL);
1754 }
1755
1756 /* Hwmon device ***************************************************************/
1757
asus_agfn_fan_speed_read(struct asus_wmi * asus,int fan,int * speed)1758 static int asus_agfn_fan_speed_read(struct asus_wmi *asus, int fan,
1759 int *speed)
1760 {
1761 struct agfn_fan_args args = {
1762 .agfn.len = sizeof(args),
1763 .agfn.mfun = ASUS_FAN_MFUN,
1764 .agfn.sfun = ASUS_FAN_SFUN_READ,
1765 .fan = fan,
1766 .speed = 0,
1767 };
1768 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
1769 int status;
1770
1771 if (fan != 1)
1772 return -EINVAL;
1773
1774 status = asus_wmi_evaluate_method_agfn(input);
1775
1776 if (status || args.agfn.err)
1777 return -ENXIO;
1778
1779 if (speed)
1780 *speed = args.speed;
1781
1782 return 0;
1783 }
1784
asus_agfn_fan_speed_write(struct asus_wmi * asus,int fan,int * speed)1785 static int asus_agfn_fan_speed_write(struct asus_wmi *asus, int fan,
1786 int *speed)
1787 {
1788 struct agfn_fan_args args = {
1789 .agfn.len = sizeof(args),
1790 .agfn.mfun = ASUS_FAN_MFUN,
1791 .agfn.sfun = ASUS_FAN_SFUN_WRITE,
1792 .fan = fan,
1793 .speed = speed ? *speed : 0,
1794 };
1795 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
1796 int status;
1797
1798 /* 1: for setting 1st fan's speed 0: setting auto mode */
1799 if (fan != 1 && fan != 0)
1800 return -EINVAL;
1801
1802 status = asus_wmi_evaluate_method_agfn(input);
1803
1804 if (status || args.agfn.err)
1805 return -ENXIO;
1806
1807 if (speed && fan == 1)
1808 asus->agfn_pwm = *speed;
1809
1810 return 0;
1811 }
1812
1813 /*
1814 * Check if we can read the speed of one fan. If true we assume we can also
1815 * control it.
1816 */
asus_wmi_has_agfn_fan(struct asus_wmi * asus)1817 static bool asus_wmi_has_agfn_fan(struct asus_wmi *asus)
1818 {
1819 int status;
1820 int speed;
1821 u32 value;
1822
1823 status = asus_agfn_fan_speed_read(asus, 1, &speed);
1824 if (status != 0)
1825 return false;
1826
1827 status = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
1828 if (status != 0)
1829 return false;
1830
1831 /*
1832 * We need to find a better way, probably using sfun,
1833 * bits or spec ...
1834 * Currently we disable it if:
1835 * - ASUS_WMI_UNSUPPORTED_METHOD is returned
1836 * - reverved bits are non-zero
1837 * - sfun and presence bit are not set
1838 */
1839 return !(value == ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000
1840 || (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT)));
1841 }
1842
asus_fan_set_auto(struct asus_wmi * asus)1843 static int asus_fan_set_auto(struct asus_wmi *asus)
1844 {
1845 int status;
1846 u32 retval;
1847
1848 switch (asus->fan_type) {
1849 case FAN_TYPE_SPEC83:
1850 status = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL,
1851 0, &retval);
1852 if (status)
1853 return status;
1854
1855 if (retval != 1)
1856 return -EIO;
1857 break;
1858
1859 case FAN_TYPE_AGFN:
1860 status = asus_agfn_fan_speed_write(asus, 0, NULL);
1861 if (status)
1862 return -ENXIO;
1863 break;
1864
1865 default:
1866 return -ENXIO;
1867 }
1868
1869 /*
1870 * Modern models like the G713 also have GPU fan control (this is not AGFN)
1871 */
1872 if (asus->gpu_fan_type == FAN_TYPE_SPEC83) {
1873 status = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
1874 0, &retval);
1875 if (status)
1876 return status;
1877
1878 if (retval != 1)
1879 return -EIO;
1880 }
1881
1882 return 0;
1883 }
1884
pwm1_show(struct device * dev,struct device_attribute * attr,char * buf)1885 static ssize_t pwm1_show(struct device *dev,
1886 struct device_attribute *attr,
1887 char *buf)
1888 {
1889 struct asus_wmi *asus = dev_get_drvdata(dev);
1890 int err;
1891 int value;
1892
1893 /* If we already set a value then just return it */
1894 if (asus->agfn_pwm >= 0)
1895 return sprintf(buf, "%d\n", asus->agfn_pwm);
1896
1897 /*
1898 * If we haven't set already set a value through the AGFN interface,
1899 * we read a current value through the (now-deprecated) FAN_CTRL device.
1900 */
1901 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
1902 if (err < 0)
1903 return err;
1904
1905 value &= 0xFF;
1906
1907 if (value == 1) /* Low Speed */
1908 value = 85;
1909 else if (value == 2)
1910 value = 170;
1911 else if (value == 3)
1912 value = 255;
1913 else if (value) {
1914 pr_err("Unknown fan speed %#x\n", value);
1915 value = -1;
1916 }
1917
1918 return sysfs_emit(buf, "%d\n", value);
1919 }
1920
pwm1_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1921 static ssize_t pwm1_store(struct device *dev,
1922 struct device_attribute *attr,
1923 const char *buf, size_t count) {
1924 struct asus_wmi *asus = dev_get_drvdata(dev);
1925 int value;
1926 int state;
1927 int ret;
1928
1929 ret = kstrtouint(buf, 10, &value);
1930 if (ret)
1931 return ret;
1932
1933 value = clamp(value, 0, 255);
1934
1935 state = asus_agfn_fan_speed_write(asus, 1, &value);
1936 if (state)
1937 pr_warn("Setting fan speed failed: %d\n", state);
1938 else
1939 asus->fan_pwm_mode = ASUS_FAN_CTRL_MANUAL;
1940
1941 return count;
1942 }
1943
fan1_input_show(struct device * dev,struct device_attribute * attr,char * buf)1944 static ssize_t fan1_input_show(struct device *dev,
1945 struct device_attribute *attr,
1946 char *buf)
1947 {
1948 struct asus_wmi *asus = dev_get_drvdata(dev);
1949 int value;
1950 int ret;
1951
1952 switch (asus->fan_type) {
1953 case FAN_TYPE_SPEC83:
1954 ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL,
1955 &value);
1956 if (ret < 0)
1957 return ret;
1958
1959 value &= 0xffff;
1960 break;
1961
1962 case FAN_TYPE_AGFN:
1963 /* no speed readable on manual mode */
1964 if (asus->fan_pwm_mode == ASUS_FAN_CTRL_MANUAL)
1965 return -ENXIO;
1966
1967 ret = asus_agfn_fan_speed_read(asus, 1, &value);
1968 if (ret) {
1969 pr_warn("reading fan speed failed: %d\n", ret);
1970 return -ENXIO;
1971 }
1972 break;
1973
1974 default:
1975 return -ENXIO;
1976 }
1977
1978 return sysfs_emit(buf, "%d\n", value < 0 ? -1 : value * 100);
1979 }
1980
pwm1_enable_show(struct device * dev,struct device_attribute * attr,char * buf)1981 static ssize_t pwm1_enable_show(struct device *dev,
1982 struct device_attribute *attr,
1983 char *buf)
1984 {
1985 struct asus_wmi *asus = dev_get_drvdata(dev);
1986
1987 /*
1988 * Just read back the cached pwm mode.
1989 *
1990 * For the CPU_FAN device, the spec indicates that we should be
1991 * able to read the device status and consult bit 19 to see if we
1992 * are in Full On or Automatic mode. However, this does not work
1993 * in practice on X532FL at least (the bit is always 0) and there's
1994 * also nothing in the DSDT to indicate that this behaviour exists.
1995 */
1996 return sysfs_emit(buf, "%d\n", asus->fan_pwm_mode);
1997 }
1998
pwm1_enable_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1999 static ssize_t pwm1_enable_store(struct device *dev,
2000 struct device_attribute *attr,
2001 const char *buf, size_t count)
2002 {
2003 struct asus_wmi *asus = dev_get_drvdata(dev);
2004 int status = 0;
2005 int state;
2006 int value;
2007 int ret;
2008 u32 retval;
2009
2010 ret = kstrtouint(buf, 10, &state);
2011 if (ret)
2012 return ret;
2013
2014 if (asus->fan_type == FAN_TYPE_SPEC83) {
2015 switch (state) { /* standard documented hwmon values */
2016 case ASUS_FAN_CTRL_FULLSPEED:
2017 value = 1;
2018 break;
2019 case ASUS_FAN_CTRL_AUTO:
2020 value = 0;
2021 break;
2022 default:
2023 return -EINVAL;
2024 }
2025
2026 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL,
2027 value, &retval);
2028 if (ret)
2029 return ret;
2030
2031 if (retval != 1)
2032 return -EIO;
2033 } else if (asus->fan_type == FAN_TYPE_AGFN) {
2034 switch (state) {
2035 case ASUS_FAN_CTRL_MANUAL:
2036 break;
2037
2038 case ASUS_FAN_CTRL_AUTO:
2039 status = asus_fan_set_auto(asus);
2040 if (status)
2041 return status;
2042 break;
2043
2044 default:
2045 return -EINVAL;
2046 }
2047 }
2048
2049 asus->fan_pwm_mode = state;
2050
2051 /* Must set to disabled if mode is toggled */
2052 if (asus->cpu_fan_curve_available)
2053 asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false;
2054 if (asus->gpu_fan_curve_available)
2055 asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false;
2056
2057 return count;
2058 }
2059
fan1_label_show(struct device * dev,struct device_attribute * attr,char * buf)2060 static ssize_t fan1_label_show(struct device *dev,
2061 struct device_attribute *attr,
2062 char *buf)
2063 {
2064 return sysfs_emit(buf, "%s\n", ASUS_FAN_DESC);
2065 }
2066
asus_hwmon_temp1(struct device * dev,struct device_attribute * attr,char * buf)2067 static ssize_t asus_hwmon_temp1(struct device *dev,
2068 struct device_attribute *attr,
2069 char *buf)
2070 {
2071 struct asus_wmi *asus = dev_get_drvdata(dev);
2072 u32 value;
2073 int err;
2074
2075 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_THERMAL_CTRL, &value);
2076 if (err < 0)
2077 return err;
2078
2079 return sprintf(buf, "%ld\n",
2080 deci_kelvin_to_millicelsius(value & 0xFFFF));
2081 }
2082
2083 /* GPU fan on modern ROG laptops */
fan2_input_show(struct device * dev,struct device_attribute * attr,char * buf)2084 static ssize_t fan2_input_show(struct device *dev,
2085 struct device_attribute *attr,
2086 char *buf)
2087 {
2088 struct asus_wmi *asus = dev_get_drvdata(dev);
2089 int value;
2090 int ret;
2091
2092 ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL, &value);
2093 if (ret < 0)
2094 return ret;
2095
2096 value &= 0xffff;
2097
2098 return sysfs_emit(buf, "%d\n", value * 100);
2099 }
2100
fan2_label_show(struct device * dev,struct device_attribute * attr,char * buf)2101 static ssize_t fan2_label_show(struct device *dev,
2102 struct device_attribute *attr,
2103 char *buf)
2104 {
2105 return sysfs_emit(buf, "%s\n", ASUS_GPU_FAN_DESC);
2106 }
2107
pwm2_enable_show(struct device * dev,struct device_attribute * attr,char * buf)2108 static ssize_t pwm2_enable_show(struct device *dev,
2109 struct device_attribute *attr,
2110 char *buf)
2111 {
2112 struct asus_wmi *asus = dev_get_drvdata(dev);
2113
2114 return sysfs_emit(buf, "%d\n", asus->gpu_fan_pwm_mode);
2115 }
2116
pwm2_enable_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2117 static ssize_t pwm2_enable_store(struct device *dev,
2118 struct device_attribute *attr,
2119 const char *buf, size_t count)
2120 {
2121 struct asus_wmi *asus = dev_get_drvdata(dev);
2122 int state;
2123 int value;
2124 int ret;
2125 u32 retval;
2126
2127 ret = kstrtouint(buf, 10, &state);
2128 if (ret)
2129 return ret;
2130
2131 switch (state) { /* standard documented hwmon values */
2132 case ASUS_FAN_CTRL_FULLSPEED:
2133 value = 1;
2134 break;
2135 case ASUS_FAN_CTRL_AUTO:
2136 value = 0;
2137 break;
2138 default:
2139 return -EINVAL;
2140 }
2141
2142 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
2143 value, &retval);
2144 if (ret)
2145 return ret;
2146
2147 if (retval != 1)
2148 return -EIO;
2149
2150 asus->gpu_fan_pwm_mode = state;
2151 return count;
2152 }
2153
2154 /* Fan1 */
2155 static DEVICE_ATTR_RW(pwm1);
2156 static DEVICE_ATTR_RW(pwm1_enable);
2157 static DEVICE_ATTR_RO(fan1_input);
2158 static DEVICE_ATTR_RO(fan1_label);
2159 /* Fan2 - GPU fan */
2160 static DEVICE_ATTR_RW(pwm2_enable);
2161 static DEVICE_ATTR_RO(fan2_input);
2162 static DEVICE_ATTR_RO(fan2_label);
2163
2164 /* Temperature */
2165 static DEVICE_ATTR(temp1_input, S_IRUGO, asus_hwmon_temp1, NULL);
2166
2167 static struct attribute *hwmon_attributes[] = {
2168 &dev_attr_pwm1.attr,
2169 &dev_attr_pwm1_enable.attr,
2170 &dev_attr_pwm2_enable.attr,
2171 &dev_attr_fan1_input.attr,
2172 &dev_attr_fan1_label.attr,
2173 &dev_attr_fan2_input.attr,
2174 &dev_attr_fan2_label.attr,
2175
2176 &dev_attr_temp1_input.attr,
2177 NULL
2178 };
2179
asus_hwmon_sysfs_is_visible(struct kobject * kobj,struct attribute * attr,int idx)2180 static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
2181 struct attribute *attr, int idx)
2182 {
2183 struct device *dev = kobj_to_dev(kobj);
2184 struct asus_wmi *asus = dev_get_drvdata(dev->parent);
2185 u32 value = ASUS_WMI_UNSUPPORTED_METHOD;
2186
2187 if (attr == &dev_attr_pwm1.attr) {
2188 if (asus->fan_type != FAN_TYPE_AGFN)
2189 return 0;
2190 } else if (attr == &dev_attr_fan1_input.attr
2191 || attr == &dev_attr_fan1_label.attr
2192 || attr == &dev_attr_pwm1_enable.attr) {
2193 if (asus->fan_type == FAN_TYPE_NONE)
2194 return 0;
2195 } else if (attr == &dev_attr_fan2_input.attr
2196 || attr == &dev_attr_fan2_label.attr
2197 || attr == &dev_attr_pwm2_enable.attr) {
2198 if (asus->gpu_fan_type == FAN_TYPE_NONE)
2199 return 0;
2200 } else if (attr == &dev_attr_temp1_input.attr) {
2201 int err = asus_wmi_get_devstate(asus,
2202 ASUS_WMI_DEVID_THERMAL_CTRL,
2203 &value);
2204
2205 if (err < 0)
2206 return 0; /* can't return negative here */
2207
2208 /*
2209 * If the temperature value in deci-Kelvin is near the absolute
2210 * zero temperature, something is clearly wrong
2211 */
2212 if (value == 0 || value == 1)
2213 return 0;
2214 }
2215
2216 return attr->mode;
2217 }
2218
2219 static const struct attribute_group hwmon_attribute_group = {
2220 .is_visible = asus_hwmon_sysfs_is_visible,
2221 .attrs = hwmon_attributes
2222 };
2223 __ATTRIBUTE_GROUPS(hwmon_attribute);
2224
asus_wmi_hwmon_init(struct asus_wmi * asus)2225 static int asus_wmi_hwmon_init(struct asus_wmi *asus)
2226 {
2227 struct device *dev = &asus->platform_device->dev;
2228 struct device *hwmon;
2229
2230 hwmon = devm_hwmon_device_register_with_groups(dev, "asus", asus,
2231 hwmon_attribute_groups);
2232
2233 if (IS_ERR(hwmon)) {
2234 pr_err("Could not register asus hwmon device\n");
2235 return PTR_ERR(hwmon);
2236 }
2237 return 0;
2238 }
2239
asus_wmi_fan_init(struct asus_wmi * asus)2240 static int asus_wmi_fan_init(struct asus_wmi *asus)
2241 {
2242 asus->gpu_fan_type = FAN_TYPE_NONE;
2243 asus->fan_type = FAN_TYPE_NONE;
2244 asus->agfn_pwm = -1;
2245
2246 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL))
2247 asus->fan_type = FAN_TYPE_SPEC83;
2248 else if (asus_wmi_has_agfn_fan(asus))
2249 asus->fan_type = FAN_TYPE_AGFN;
2250
2251 /* Modern models like G713 also have GPU fan control */
2252 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL))
2253 asus->gpu_fan_type = FAN_TYPE_SPEC83;
2254
2255 if (asus->fan_type == FAN_TYPE_NONE)
2256 return -ENODEV;
2257
2258 asus_fan_set_auto(asus);
2259 asus->fan_pwm_mode = ASUS_FAN_CTRL_AUTO;
2260 return 0;
2261 }
2262
2263 /* Fan mode *******************************************************************/
2264
fan_boost_mode_check_present(struct asus_wmi * asus)2265 static int fan_boost_mode_check_present(struct asus_wmi *asus)
2266 {
2267 u32 result;
2268 int err;
2269
2270 asus->fan_boost_mode_available = false;
2271
2272 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_BOOST_MODE,
2273 &result);
2274 if (err) {
2275 if (err == -ENODEV)
2276 return 0;
2277 else
2278 return err;
2279 }
2280
2281 if ((result & ASUS_WMI_DSTS_PRESENCE_BIT) &&
2282 (result & ASUS_FAN_BOOST_MODES_MASK)) {
2283 asus->fan_boost_mode_available = true;
2284 asus->fan_boost_mode_mask = result & ASUS_FAN_BOOST_MODES_MASK;
2285 }
2286
2287 return 0;
2288 }
2289
fan_boost_mode_write(struct asus_wmi * asus)2290 static int fan_boost_mode_write(struct asus_wmi *asus)
2291 {
2292 u32 retval;
2293 u8 value;
2294 int err;
2295
2296 value = asus->fan_boost_mode;
2297
2298 pr_info("Set fan boost mode: %u\n", value);
2299 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_FAN_BOOST_MODE, value,
2300 &retval);
2301
2302 sysfs_notify(&asus->platform_device->dev.kobj, NULL,
2303 "fan_boost_mode");
2304
2305 if (err) {
2306 pr_warn("Failed to set fan boost mode: %d\n", err);
2307 return err;
2308 }
2309
2310 if (retval != 1) {
2311 pr_warn("Failed to set fan boost mode (retval): 0x%x\n",
2312 retval);
2313 return -EIO;
2314 }
2315
2316 return 0;
2317 }
2318
fan_boost_mode_switch_next(struct asus_wmi * asus)2319 static int fan_boost_mode_switch_next(struct asus_wmi *asus)
2320 {
2321 u8 mask = asus->fan_boost_mode_mask;
2322
2323 if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_NORMAL) {
2324 if (mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK)
2325 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_OVERBOOST;
2326 else if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK)
2327 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT;
2328 } else if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) {
2329 if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK)
2330 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT;
2331 else
2332 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL;
2333 } else {
2334 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL;
2335 }
2336
2337 return fan_boost_mode_write(asus);
2338 }
2339
fan_boost_mode_show(struct device * dev,struct device_attribute * attr,char * buf)2340 static ssize_t fan_boost_mode_show(struct device *dev,
2341 struct device_attribute *attr, char *buf)
2342 {
2343 struct asus_wmi *asus = dev_get_drvdata(dev);
2344
2345 return sysfs_emit(buf, "%d\n", asus->fan_boost_mode);
2346 }
2347
fan_boost_mode_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2348 static ssize_t fan_boost_mode_store(struct device *dev,
2349 struct device_attribute *attr,
2350 const char *buf, size_t count)
2351 {
2352 struct asus_wmi *asus = dev_get_drvdata(dev);
2353 u8 mask = asus->fan_boost_mode_mask;
2354 u8 new_mode;
2355 int result;
2356
2357 result = kstrtou8(buf, 10, &new_mode);
2358 if (result < 0) {
2359 pr_warn("Trying to store invalid value\n");
2360 return result;
2361 }
2362
2363 if (new_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) {
2364 if (!(mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK))
2365 return -EINVAL;
2366 } else if (new_mode == ASUS_FAN_BOOST_MODE_SILENT) {
2367 if (!(mask & ASUS_FAN_BOOST_MODE_SILENT_MASK))
2368 return -EINVAL;
2369 } else if (new_mode != ASUS_FAN_BOOST_MODE_NORMAL) {
2370 return -EINVAL;
2371 }
2372
2373 asus->fan_boost_mode = new_mode;
2374 fan_boost_mode_write(asus);
2375
2376 return count;
2377 }
2378
2379 // Fan boost mode: 0 - normal, 1 - overboost, 2 - silent
2380 static DEVICE_ATTR_RW(fan_boost_mode);
2381
2382 /* Custom fan curves **********************************************************/
2383
fan_curve_copy_from_buf(struct fan_curve_data * data,u8 * buf)2384 static void fan_curve_copy_from_buf(struct fan_curve_data *data, u8 *buf)
2385 {
2386 int i;
2387
2388 for (i = 0; i < FAN_CURVE_POINTS; i++) {
2389 data->temps[i] = buf[i];
2390 }
2391
2392 for (i = 0; i < FAN_CURVE_POINTS; i++) {
2393 data->percents[i] =
2394 255 * buf[i + FAN_CURVE_POINTS] / 100;
2395 }
2396 }
2397
fan_curve_get_factory_default(struct asus_wmi * asus,u32 fan_dev)2398 static int fan_curve_get_factory_default(struct asus_wmi *asus, u32 fan_dev)
2399 {
2400 struct fan_curve_data *curves;
2401 u8 buf[FAN_CURVE_BUF_LEN];
2402 int fan_idx = 0;
2403 u8 mode = 0;
2404 int err;
2405
2406 if (asus->throttle_thermal_policy_available)
2407 mode = asus->throttle_thermal_policy_mode;
2408 /* DEVID_<C/G>PU_FAN_CURVE is switched for OVERBOOST vs SILENT */
2409 if (mode == 2)
2410 mode = 1;
2411 else if (mode == 1)
2412 mode = 2;
2413
2414 if (fan_dev == ASUS_WMI_DEVID_GPU_FAN_CURVE)
2415 fan_idx = FAN_CURVE_DEV_GPU;
2416
2417 curves = &asus->custom_fan_curves[fan_idx];
2418 err = asus_wmi_evaluate_method_buf(asus->dsts_id, fan_dev, mode, buf,
2419 FAN_CURVE_BUF_LEN);
2420 if (err) {
2421 pr_warn("%s (0x%08x) failed: %d\n", __func__, fan_dev, err);
2422 return err;
2423 }
2424
2425 fan_curve_copy_from_buf(curves, buf);
2426 curves->device_id = fan_dev;
2427
2428 return 0;
2429 }
2430
2431 /* Check if capability exists, and populate defaults */
fan_curve_check_present(struct asus_wmi * asus,bool * available,u32 fan_dev)2432 static int fan_curve_check_present(struct asus_wmi *asus, bool *available,
2433 u32 fan_dev)
2434 {
2435 int err;
2436
2437 *available = false;
2438
2439 err = fan_curve_get_factory_default(asus, fan_dev);
2440 if (err) {
2441 return 0;
2442 }
2443
2444 *available = true;
2445 return 0;
2446 }
2447
2448 /* Determine which fan the attribute is for if SENSOR_ATTR */
fan_curve_attr_select(struct asus_wmi * asus,struct device_attribute * attr)2449 static struct fan_curve_data *fan_curve_attr_select(struct asus_wmi *asus,
2450 struct device_attribute *attr)
2451 {
2452 int index = to_sensor_dev_attr(attr)->index;
2453
2454 return &asus->custom_fan_curves[index & FAN_CURVE_DEV_GPU];
2455 }
2456
2457 /* Determine which fan the attribute is for if SENSOR_ATTR_2 */
fan_curve_attr_2_select(struct asus_wmi * asus,struct device_attribute * attr)2458 static struct fan_curve_data *fan_curve_attr_2_select(struct asus_wmi *asus,
2459 struct device_attribute *attr)
2460 {
2461 int nr = to_sensor_dev_attr_2(attr)->nr;
2462
2463 return &asus->custom_fan_curves[nr & FAN_CURVE_DEV_GPU];
2464 }
2465
fan_curve_show(struct device * dev,struct device_attribute * attr,char * buf)2466 static ssize_t fan_curve_show(struct device *dev,
2467 struct device_attribute *attr, char *buf)
2468 {
2469 struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr);
2470 struct asus_wmi *asus = dev_get_drvdata(dev);
2471 struct fan_curve_data *data;
2472 int value, index, nr;
2473
2474 data = fan_curve_attr_2_select(asus, attr);
2475 index = dev_attr->index;
2476 nr = dev_attr->nr;
2477
2478 if (nr & FAN_CURVE_PWM_MASK)
2479 value = data->percents[index];
2480 else
2481 value = data->temps[index];
2482
2483 return sysfs_emit(buf, "%d\n", value);
2484 }
2485
2486 /*
2487 * "fan_dev" is the related WMI method such as ASUS_WMI_DEVID_CPU_FAN_CURVE.
2488 */
fan_curve_write(struct asus_wmi * asus,struct fan_curve_data * data)2489 static int fan_curve_write(struct asus_wmi *asus,
2490 struct fan_curve_data *data)
2491 {
2492 u32 arg1 = 0, arg2 = 0, arg3 = 0, arg4 = 0;
2493 u8 *percents = data->percents;
2494 u8 *temps = data->temps;
2495 int ret, i, shift = 0;
2496
2497 if (!data->enabled)
2498 return 0;
2499
2500 for (i = 0; i < FAN_CURVE_POINTS / 2; i++) {
2501 arg1 += (temps[i]) << shift;
2502 arg2 += (temps[i + 4]) << shift;
2503 /* Scale to percentage for device */
2504 arg3 += (100 * percents[i] / 255) << shift;
2505 arg4 += (100 * percents[i + 4] / 255) << shift;
2506 shift += 8;
2507 }
2508
2509 return asus_wmi_evaluate_method5(ASUS_WMI_METHODID_DEVS,
2510 data->device_id,
2511 arg1, arg2, arg3, arg4, &ret);
2512 }
2513
fan_curve_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2514 static ssize_t fan_curve_store(struct device *dev,
2515 struct device_attribute *attr, const char *buf,
2516 size_t count)
2517 {
2518 struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr);
2519 struct asus_wmi *asus = dev_get_drvdata(dev);
2520 struct fan_curve_data *data;
2521 u8 value;
2522 int err;
2523
2524 int pwm = dev_attr->nr & FAN_CURVE_PWM_MASK;
2525 int index = dev_attr->index;
2526
2527 data = fan_curve_attr_2_select(asus, attr);
2528
2529 err = kstrtou8(buf, 10, &value);
2530 if (err < 0)
2531 return err;
2532
2533 if (pwm) {
2534 data->percents[index] = value;
2535 } else {
2536 data->temps[index] = value;
2537 }
2538
2539 /*
2540 * Mark as disabled so the user has to explicitly enable to apply a
2541 * changed fan curve. This prevents potential lockups from writing out
2542 * many changes as one-write-per-change.
2543 */
2544 data->enabled = false;
2545
2546 return count;
2547 }
2548
fan_curve_enable_show(struct device * dev,struct device_attribute * attr,char * buf)2549 static ssize_t fan_curve_enable_show(struct device *dev,
2550 struct device_attribute *attr, char *buf)
2551 {
2552 struct asus_wmi *asus = dev_get_drvdata(dev);
2553 struct fan_curve_data *data;
2554 int out = 2;
2555
2556 data = fan_curve_attr_select(asus, attr);
2557
2558 if (data->enabled)
2559 out = 1;
2560
2561 return sysfs_emit(buf, "%d\n", out);
2562 }
2563
fan_curve_enable_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2564 static ssize_t fan_curve_enable_store(struct device *dev,
2565 struct device_attribute *attr,
2566 const char *buf, size_t count)
2567 {
2568 struct asus_wmi *asus = dev_get_drvdata(dev);
2569 struct fan_curve_data *data;
2570 int value, err;
2571
2572 data = fan_curve_attr_select(asus, attr);
2573
2574 err = kstrtoint(buf, 10, &value);
2575 if (err < 0)
2576 return err;
2577
2578 switch (value) {
2579 case 1:
2580 data->enabled = true;
2581 break;
2582 case 2:
2583 data->enabled = false;
2584 break;
2585 /*
2586 * Auto + reset the fan curve data to defaults. Make it an explicit
2587 * option so that users don't accidentally overwrite a set fan curve.
2588 */
2589 case 3:
2590 err = fan_curve_get_factory_default(asus, data->device_id);
2591 if (err)
2592 return err;
2593 data->enabled = false;
2594 break;
2595 default:
2596 return -EINVAL;
2597 }
2598
2599 if (data->enabled) {
2600 err = fan_curve_write(asus, data);
2601 if (err)
2602 return err;
2603 } else {
2604 /*
2605 * For machines with throttle this is the only way to reset fans
2606 * to default mode of operation (does not erase curve data).
2607 */
2608 if (asus->throttle_thermal_policy_available) {
2609 err = throttle_thermal_policy_write(asus);
2610 if (err)
2611 return err;
2612 /* Similar is true for laptops with this fan */
2613 } else if (asus->fan_type == FAN_TYPE_SPEC83) {
2614 err = asus_fan_set_auto(asus);
2615 if (err)
2616 return err;
2617 } else {
2618 /* Safeguard against fautly ACPI tables */
2619 err = fan_curve_get_factory_default(asus, data->device_id);
2620 if (err)
2621 return err;
2622 err = fan_curve_write(asus, data);
2623 if (err)
2624 return err;
2625 }
2626 }
2627 return count;
2628 }
2629
2630 /* CPU */
2631 static SENSOR_DEVICE_ATTR_RW(pwm1_enable, fan_curve_enable, FAN_CURVE_DEV_CPU);
2632 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_temp, fan_curve,
2633 FAN_CURVE_DEV_CPU, 0);
2634 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_temp, fan_curve,
2635 FAN_CURVE_DEV_CPU, 1);
2636 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_temp, fan_curve,
2637 FAN_CURVE_DEV_CPU, 2);
2638 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_temp, fan_curve,
2639 FAN_CURVE_DEV_CPU, 3);
2640 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_temp, fan_curve,
2641 FAN_CURVE_DEV_CPU, 4);
2642 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_temp, fan_curve,
2643 FAN_CURVE_DEV_CPU, 5);
2644 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_temp, fan_curve,
2645 FAN_CURVE_DEV_CPU, 6);
2646 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_temp, fan_curve,
2647 FAN_CURVE_DEV_CPU, 7);
2648
2649 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_pwm, fan_curve,
2650 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 0);
2651 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_pwm, fan_curve,
2652 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 1);
2653 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_pwm, fan_curve,
2654 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 2);
2655 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_pwm, fan_curve,
2656 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 3);
2657 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_pwm, fan_curve,
2658 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 4);
2659 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_pwm, fan_curve,
2660 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 5);
2661 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_pwm, fan_curve,
2662 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 6);
2663 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_pwm, fan_curve,
2664 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 7);
2665
2666 /* GPU */
2667 static SENSOR_DEVICE_ATTR_RW(pwm2_enable, fan_curve_enable, FAN_CURVE_DEV_GPU);
2668 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_temp, fan_curve,
2669 FAN_CURVE_DEV_GPU, 0);
2670 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_temp, fan_curve,
2671 FAN_CURVE_DEV_GPU, 1);
2672 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_temp, fan_curve,
2673 FAN_CURVE_DEV_GPU, 2);
2674 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_temp, fan_curve,
2675 FAN_CURVE_DEV_GPU, 3);
2676 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_temp, fan_curve,
2677 FAN_CURVE_DEV_GPU, 4);
2678 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_temp, fan_curve,
2679 FAN_CURVE_DEV_GPU, 5);
2680 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_temp, fan_curve,
2681 FAN_CURVE_DEV_GPU, 6);
2682 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_temp, fan_curve,
2683 FAN_CURVE_DEV_GPU, 7);
2684
2685 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_pwm, fan_curve,
2686 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 0);
2687 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_pwm, fan_curve,
2688 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 1);
2689 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_pwm, fan_curve,
2690 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 2);
2691 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_pwm, fan_curve,
2692 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 3);
2693 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_pwm, fan_curve,
2694 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 4);
2695 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_pwm, fan_curve,
2696 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 5);
2697 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_pwm, fan_curve,
2698 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 6);
2699 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_pwm, fan_curve,
2700 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 7);
2701
2702 static struct attribute *asus_fan_curve_attr[] = {
2703 /* CPU */
2704 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
2705 &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
2706 &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
2707 &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
2708 &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
2709 &sensor_dev_attr_pwm1_auto_point5_temp.dev_attr.attr,
2710 &sensor_dev_attr_pwm1_auto_point6_temp.dev_attr.attr,
2711 &sensor_dev_attr_pwm1_auto_point7_temp.dev_attr.attr,
2712 &sensor_dev_attr_pwm1_auto_point8_temp.dev_attr.attr,
2713 &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
2714 &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
2715 &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
2716 &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
2717 &sensor_dev_attr_pwm1_auto_point5_pwm.dev_attr.attr,
2718 &sensor_dev_attr_pwm1_auto_point6_pwm.dev_attr.attr,
2719 &sensor_dev_attr_pwm1_auto_point7_pwm.dev_attr.attr,
2720 &sensor_dev_attr_pwm1_auto_point8_pwm.dev_attr.attr,
2721 /* GPU */
2722 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
2723 &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
2724 &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
2725 &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
2726 &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
2727 &sensor_dev_attr_pwm2_auto_point5_temp.dev_attr.attr,
2728 &sensor_dev_attr_pwm2_auto_point6_temp.dev_attr.attr,
2729 &sensor_dev_attr_pwm2_auto_point7_temp.dev_attr.attr,
2730 &sensor_dev_attr_pwm2_auto_point8_temp.dev_attr.attr,
2731 &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
2732 &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
2733 &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
2734 &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,
2735 &sensor_dev_attr_pwm2_auto_point5_pwm.dev_attr.attr,
2736 &sensor_dev_attr_pwm2_auto_point6_pwm.dev_attr.attr,
2737 &sensor_dev_attr_pwm2_auto_point7_pwm.dev_attr.attr,
2738 &sensor_dev_attr_pwm2_auto_point8_pwm.dev_attr.attr,
2739 NULL
2740 };
2741
asus_fan_curve_is_visible(struct kobject * kobj,struct attribute * attr,int idx)2742 static umode_t asus_fan_curve_is_visible(struct kobject *kobj,
2743 struct attribute *attr, int idx)
2744 {
2745 struct device *dev = kobj_to_dev(kobj);
2746 struct asus_wmi *asus = dev_get_drvdata(dev->parent);
2747
2748 /*
2749 * Check the char instead of casting attr as there are two attr types
2750 * involved here (attr1 and attr2)
2751 */
2752 if (asus->cpu_fan_curve_available && attr->name[3] == '1')
2753 return 0644;
2754
2755 if (asus->gpu_fan_curve_available && attr->name[3] == '2')
2756 return 0644;
2757
2758 return 0;
2759 }
2760
2761 static const struct attribute_group asus_fan_curve_attr_group = {
2762 .is_visible = asus_fan_curve_is_visible,
2763 .attrs = asus_fan_curve_attr,
2764 };
2765 __ATTRIBUTE_GROUPS(asus_fan_curve_attr);
2766
2767 /*
2768 * Must be initialised after throttle_thermal_policy_check_present() as
2769 * we check the status of throttle_thermal_policy_available during init.
2770 */
asus_wmi_custom_fan_curve_init(struct asus_wmi * asus)2771 static int asus_wmi_custom_fan_curve_init(struct asus_wmi *asus)
2772 {
2773 struct device *dev = &asus->platform_device->dev;
2774 struct device *hwmon;
2775 int err;
2776
2777 err = fan_curve_check_present(asus, &asus->cpu_fan_curve_available,
2778 ASUS_WMI_DEVID_CPU_FAN_CURVE);
2779 if (err)
2780 return err;
2781
2782 err = fan_curve_check_present(asus, &asus->gpu_fan_curve_available,
2783 ASUS_WMI_DEVID_GPU_FAN_CURVE);
2784 if (err)
2785 return err;
2786
2787 if (!asus->cpu_fan_curve_available && !asus->gpu_fan_curve_available)
2788 return 0;
2789
2790 hwmon = devm_hwmon_device_register_with_groups(
2791 dev, "asus_custom_fan_curve", asus, asus_fan_curve_attr_groups);
2792
2793 if (IS_ERR(hwmon)) {
2794 dev_err(dev,
2795 "Could not register asus_custom_fan_curve device\n");
2796 return PTR_ERR(hwmon);
2797 }
2798
2799 return 0;
2800 }
2801
2802 /* Throttle thermal policy ****************************************************/
2803
throttle_thermal_policy_check_present(struct asus_wmi * asus)2804 static int throttle_thermal_policy_check_present(struct asus_wmi *asus)
2805 {
2806 u32 result;
2807 int err;
2808
2809 asus->throttle_thermal_policy_available = false;
2810
2811 err = asus_wmi_get_devstate(asus,
2812 ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY,
2813 &result);
2814 if (err) {
2815 if (err == -ENODEV)
2816 return 0;
2817 return err;
2818 }
2819
2820 if (result & ASUS_WMI_DSTS_PRESENCE_BIT)
2821 asus->throttle_thermal_policy_available = true;
2822
2823 return 0;
2824 }
2825
throttle_thermal_policy_write(struct asus_wmi * asus)2826 static int throttle_thermal_policy_write(struct asus_wmi *asus)
2827 {
2828 int err;
2829 u8 value;
2830 u32 retval;
2831
2832 value = asus->throttle_thermal_policy_mode;
2833
2834 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY,
2835 value, &retval);
2836
2837 sysfs_notify(&asus->platform_device->dev.kobj, NULL,
2838 "throttle_thermal_policy");
2839
2840 if (err) {
2841 pr_warn("Failed to set throttle thermal policy: %d\n", err);
2842 return err;
2843 }
2844
2845 if (retval != 1) {
2846 pr_warn("Failed to set throttle thermal policy (retval): 0x%x\n",
2847 retval);
2848 return -EIO;
2849 }
2850
2851 /* Must set to disabled if mode is toggled */
2852 if (asus->cpu_fan_curve_available)
2853 asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false;
2854 if (asus->gpu_fan_curve_available)
2855 asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false;
2856
2857 return 0;
2858 }
2859
throttle_thermal_policy_set_default(struct asus_wmi * asus)2860 static int throttle_thermal_policy_set_default(struct asus_wmi *asus)
2861 {
2862 if (!asus->throttle_thermal_policy_available)
2863 return 0;
2864
2865 asus->throttle_thermal_policy_mode = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
2866 return throttle_thermal_policy_write(asus);
2867 }
2868
throttle_thermal_policy_switch_next(struct asus_wmi * asus)2869 static int throttle_thermal_policy_switch_next(struct asus_wmi *asus)
2870 {
2871 u8 new_mode = asus->throttle_thermal_policy_mode + 1;
2872 int err;
2873
2874 if (new_mode > ASUS_THROTTLE_THERMAL_POLICY_SILENT)
2875 new_mode = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
2876
2877 asus->throttle_thermal_policy_mode = new_mode;
2878 err = throttle_thermal_policy_write(asus);
2879 if (err)
2880 return err;
2881
2882 /*
2883 * Ensure that platform_profile updates userspace with the change to ensure
2884 * that platform_profile and throttle_thermal_policy_mode are in sync.
2885 */
2886 platform_profile_notify();
2887
2888 return 0;
2889 }
2890
throttle_thermal_policy_show(struct device * dev,struct device_attribute * attr,char * buf)2891 static ssize_t throttle_thermal_policy_show(struct device *dev,
2892 struct device_attribute *attr, char *buf)
2893 {
2894 struct asus_wmi *asus = dev_get_drvdata(dev);
2895 u8 mode = asus->throttle_thermal_policy_mode;
2896
2897 return sysfs_emit(buf, "%d\n", mode);
2898 }
2899
throttle_thermal_policy_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2900 static ssize_t throttle_thermal_policy_store(struct device *dev,
2901 struct device_attribute *attr,
2902 const char *buf, size_t count)
2903 {
2904 struct asus_wmi *asus = dev_get_drvdata(dev);
2905 u8 new_mode;
2906 int result;
2907 int err;
2908
2909 result = kstrtou8(buf, 10, &new_mode);
2910 if (result < 0)
2911 return result;
2912
2913 if (new_mode > ASUS_THROTTLE_THERMAL_POLICY_SILENT)
2914 return -EINVAL;
2915
2916 asus->throttle_thermal_policy_mode = new_mode;
2917 err = throttle_thermal_policy_write(asus);
2918 if (err)
2919 return err;
2920
2921 /*
2922 * Ensure that platform_profile updates userspace with the change to ensure
2923 * that platform_profile and throttle_thermal_policy_mode are in sync.
2924 */
2925 platform_profile_notify();
2926
2927 return count;
2928 }
2929
2930 // Throttle thermal policy: 0 - default, 1 - overboost, 2 - silent
2931 static DEVICE_ATTR_RW(throttle_thermal_policy);
2932
2933 /* Platform profile ***********************************************************/
asus_wmi_platform_profile_get(struct platform_profile_handler * pprof,enum platform_profile_option * profile)2934 static int asus_wmi_platform_profile_get(struct platform_profile_handler *pprof,
2935 enum platform_profile_option *profile)
2936 {
2937 struct asus_wmi *asus;
2938 int tp;
2939
2940 asus = container_of(pprof, struct asus_wmi, platform_profile_handler);
2941
2942 tp = asus->throttle_thermal_policy_mode;
2943
2944 switch (tp) {
2945 case ASUS_THROTTLE_THERMAL_POLICY_DEFAULT:
2946 *profile = PLATFORM_PROFILE_BALANCED;
2947 break;
2948 case ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST:
2949 *profile = PLATFORM_PROFILE_PERFORMANCE;
2950 break;
2951 case ASUS_THROTTLE_THERMAL_POLICY_SILENT:
2952 *profile = PLATFORM_PROFILE_QUIET;
2953 break;
2954 default:
2955 return -EINVAL;
2956 }
2957
2958 return 0;
2959 }
2960
asus_wmi_platform_profile_set(struct platform_profile_handler * pprof,enum platform_profile_option profile)2961 static int asus_wmi_platform_profile_set(struct platform_profile_handler *pprof,
2962 enum platform_profile_option profile)
2963 {
2964 struct asus_wmi *asus;
2965 int tp;
2966
2967 asus = container_of(pprof, struct asus_wmi, platform_profile_handler);
2968
2969 switch (profile) {
2970 case PLATFORM_PROFILE_PERFORMANCE:
2971 tp = ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST;
2972 break;
2973 case PLATFORM_PROFILE_BALANCED:
2974 tp = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
2975 break;
2976 case PLATFORM_PROFILE_QUIET:
2977 tp = ASUS_THROTTLE_THERMAL_POLICY_SILENT;
2978 break;
2979 default:
2980 return -EOPNOTSUPP;
2981 }
2982
2983 asus->throttle_thermal_policy_mode = tp;
2984 return throttle_thermal_policy_write(asus);
2985 }
2986
platform_profile_setup(struct asus_wmi * asus)2987 static int platform_profile_setup(struct asus_wmi *asus)
2988 {
2989 struct device *dev = &asus->platform_device->dev;
2990 int err;
2991
2992 /*
2993 * Not an error if a component platform_profile relies on is unavailable
2994 * so early return, skipping the setup of platform_profile.
2995 */
2996 if (!asus->throttle_thermal_policy_available)
2997 return 0;
2998
2999 dev_info(dev, "Using throttle_thermal_policy for platform_profile support\n");
3000
3001 asus->platform_profile_handler.profile_get = asus_wmi_platform_profile_get;
3002 asus->platform_profile_handler.profile_set = asus_wmi_platform_profile_set;
3003
3004 set_bit(PLATFORM_PROFILE_QUIET, asus->platform_profile_handler.choices);
3005 set_bit(PLATFORM_PROFILE_BALANCED,
3006 asus->platform_profile_handler.choices);
3007 set_bit(PLATFORM_PROFILE_PERFORMANCE,
3008 asus->platform_profile_handler.choices);
3009
3010 err = platform_profile_register(&asus->platform_profile_handler);
3011 if (err)
3012 return err;
3013
3014 asus->platform_profile_support = true;
3015 return 0;
3016 }
3017
3018 /* Backlight ******************************************************************/
3019
read_backlight_power(struct asus_wmi * asus)3020 static int read_backlight_power(struct asus_wmi *asus)
3021 {
3022 int ret;
3023
3024 if (asus->driver->quirks->store_backlight_power)
3025 ret = !asus->driver->panel_power;
3026 else
3027 ret = asus_wmi_get_devstate_simple(asus,
3028 ASUS_WMI_DEVID_BACKLIGHT);
3029
3030 if (ret < 0)
3031 return ret;
3032
3033 return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
3034 }
3035
read_brightness_max(struct asus_wmi * asus)3036 static int read_brightness_max(struct asus_wmi *asus)
3037 {
3038 u32 retval;
3039 int err;
3040
3041 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
3042 if (err < 0)
3043 return err;
3044
3045 retval = retval & ASUS_WMI_DSTS_MAX_BRIGTH_MASK;
3046 retval >>= 8;
3047
3048 if (!retval)
3049 return -ENODEV;
3050
3051 return retval;
3052 }
3053
read_brightness(struct backlight_device * bd)3054 static int read_brightness(struct backlight_device *bd)
3055 {
3056 struct asus_wmi *asus = bl_get_data(bd);
3057 u32 retval;
3058 int err;
3059
3060 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
3061 if (err < 0)
3062 return err;
3063
3064 return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
3065 }
3066
get_scalar_command(struct backlight_device * bd)3067 static u32 get_scalar_command(struct backlight_device *bd)
3068 {
3069 struct asus_wmi *asus = bl_get_data(bd);
3070 u32 ctrl_param = 0;
3071
3072 if ((asus->driver->brightness < bd->props.brightness) ||
3073 bd->props.brightness == bd->props.max_brightness)
3074 ctrl_param = 0x00008001;
3075 else if ((asus->driver->brightness > bd->props.brightness) ||
3076 bd->props.brightness == 0)
3077 ctrl_param = 0x00008000;
3078
3079 asus->driver->brightness = bd->props.brightness;
3080
3081 return ctrl_param;
3082 }
3083
update_bl_status(struct backlight_device * bd)3084 static int update_bl_status(struct backlight_device *bd)
3085 {
3086 struct asus_wmi *asus = bl_get_data(bd);
3087 u32 ctrl_param;
3088 int power, err = 0;
3089
3090 power = read_backlight_power(asus);
3091 if (power != -ENODEV && bd->props.power != power) {
3092 ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK);
3093 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT,
3094 ctrl_param, NULL);
3095 if (asus->driver->quirks->store_backlight_power)
3096 asus->driver->panel_power = bd->props.power;
3097
3098 /* When using scalar brightness, updating the brightness
3099 * will mess with the backlight power */
3100 if (asus->driver->quirks->scalar_panel_brightness)
3101 return err;
3102 }
3103
3104 if (asus->driver->quirks->scalar_panel_brightness)
3105 ctrl_param = get_scalar_command(bd);
3106 else
3107 ctrl_param = bd->props.brightness;
3108
3109 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS,
3110 ctrl_param, NULL);
3111
3112 return err;
3113 }
3114
3115 static const struct backlight_ops asus_wmi_bl_ops = {
3116 .get_brightness = read_brightness,
3117 .update_status = update_bl_status,
3118 };
3119
asus_wmi_backlight_notify(struct asus_wmi * asus,int code)3120 static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code)
3121 {
3122 struct backlight_device *bd = asus->backlight_device;
3123 int old = bd->props.brightness;
3124 int new = old;
3125
3126 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
3127 new = code - NOTIFY_BRNUP_MIN + 1;
3128 else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
3129 new = code - NOTIFY_BRNDOWN_MIN;
3130
3131 bd->props.brightness = new;
3132 backlight_update_status(bd);
3133 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
3134
3135 return old;
3136 }
3137
asus_wmi_backlight_init(struct asus_wmi * asus)3138 static int asus_wmi_backlight_init(struct asus_wmi *asus)
3139 {
3140 struct backlight_device *bd;
3141 struct backlight_properties props;
3142 int max;
3143 int power;
3144
3145 max = read_brightness_max(asus);
3146 if (max < 0)
3147 return max;
3148
3149 power = read_backlight_power(asus);
3150 if (power == -ENODEV)
3151 power = FB_BLANK_UNBLANK;
3152 else if (power < 0)
3153 return power;
3154
3155 memset(&props, 0, sizeof(struct backlight_properties));
3156 props.type = BACKLIGHT_PLATFORM;
3157 props.max_brightness = max;
3158 bd = backlight_device_register(asus->driver->name,
3159 &asus->platform_device->dev, asus,
3160 &asus_wmi_bl_ops, &props);
3161 if (IS_ERR(bd)) {
3162 pr_err("Could not register backlight device\n");
3163 return PTR_ERR(bd);
3164 }
3165
3166 asus->backlight_device = bd;
3167
3168 if (asus->driver->quirks->store_backlight_power)
3169 asus->driver->panel_power = power;
3170
3171 bd->props.brightness = read_brightness(bd);
3172 bd->props.power = power;
3173 backlight_update_status(bd);
3174
3175 asus->driver->brightness = bd->props.brightness;
3176
3177 return 0;
3178 }
3179
asus_wmi_backlight_exit(struct asus_wmi * asus)3180 static void asus_wmi_backlight_exit(struct asus_wmi *asus)
3181 {
3182 backlight_device_unregister(asus->backlight_device);
3183
3184 asus->backlight_device = NULL;
3185 }
3186
is_display_toggle(int code)3187 static int is_display_toggle(int code)
3188 {
3189 /* display toggle keys */
3190 if ((code >= 0x61 && code <= 0x67) ||
3191 (code >= 0x8c && code <= 0x93) ||
3192 (code >= 0xa0 && code <= 0xa7) ||
3193 (code >= 0xd0 && code <= 0xd5))
3194 return 1;
3195
3196 return 0;
3197 }
3198
3199 /* Fn-lock ********************************************************************/
3200
asus_wmi_has_fnlock_key(struct asus_wmi * asus)3201 static bool asus_wmi_has_fnlock_key(struct asus_wmi *asus)
3202 {
3203 u32 result;
3204
3205 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FNLOCK, &result);
3206
3207 return (result & ASUS_WMI_DSTS_PRESENCE_BIT) &&
3208 !(result & ASUS_WMI_FNLOCK_BIOS_DISABLED);
3209 }
3210
asus_wmi_fnlock_update(struct asus_wmi * asus)3211 static void asus_wmi_fnlock_update(struct asus_wmi *asus)
3212 {
3213 int mode = asus->fnlock_locked;
3214
3215 asus_wmi_set_devstate(ASUS_WMI_DEVID_FNLOCK, mode, NULL);
3216 }
3217
3218 /* WMI events *****************************************************************/
3219
asus_wmi_get_event_code(u32 value)3220 static int asus_wmi_get_event_code(u32 value)
3221 {
3222 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
3223 union acpi_object *obj;
3224 acpi_status status;
3225 int code;
3226
3227 status = wmi_get_event_data(value, &response);
3228 if (ACPI_FAILURE(status)) {
3229 pr_warn("Failed to get WMI notify code: %s\n",
3230 acpi_format_exception(status));
3231 return -EIO;
3232 }
3233
3234 obj = (union acpi_object *)response.pointer;
3235
3236 if (obj && obj->type == ACPI_TYPE_INTEGER)
3237 code = (int)(obj->integer.value & WMI_EVENT_MASK);
3238 else
3239 code = -EIO;
3240
3241 kfree(obj);
3242 return code;
3243 }
3244
asus_wmi_handle_event_code(int code,struct asus_wmi * asus)3245 static void asus_wmi_handle_event_code(int code, struct asus_wmi *asus)
3246 {
3247 unsigned int key_value = 1;
3248 bool autorelease = 1;
3249 int orig_code = code;
3250
3251 if (asus->driver->key_filter) {
3252 asus->driver->key_filter(asus->driver, &code, &key_value,
3253 &autorelease);
3254 if (code == ASUS_WMI_KEY_IGNORE)
3255 return;
3256 }
3257
3258 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
3259 code = ASUS_WMI_BRN_UP;
3260 else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
3261 code = ASUS_WMI_BRN_DOWN;
3262
3263 if (code == ASUS_WMI_BRN_DOWN || code == ASUS_WMI_BRN_UP) {
3264 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
3265 asus_wmi_backlight_notify(asus, orig_code);
3266 return;
3267 }
3268 }
3269
3270 if (code == NOTIFY_KBD_BRTUP) {
3271 kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1);
3272 return;
3273 }
3274 if (code == NOTIFY_KBD_BRTDWN) {
3275 kbd_led_set_by_kbd(asus, asus->kbd_led_wk - 1);
3276 return;
3277 }
3278 if (code == NOTIFY_KBD_BRTTOGGLE) {
3279 if (asus->kbd_led_wk == asus->kbd_led.max_brightness)
3280 kbd_led_set_by_kbd(asus, 0);
3281 else
3282 kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1);
3283 return;
3284 }
3285
3286 if (code == NOTIFY_FNLOCK_TOGGLE) {
3287 asus->fnlock_locked = !asus->fnlock_locked;
3288 asus_wmi_fnlock_update(asus);
3289 return;
3290 }
3291
3292 if (code == asus->tablet_switch_event_code) {
3293 asus_wmi_tablet_mode_get_state(asus);
3294 return;
3295 }
3296
3297 if (code == NOTIFY_KBD_FBM || code == NOTIFY_KBD_TTP) {
3298 if (asus->fan_boost_mode_available)
3299 fan_boost_mode_switch_next(asus);
3300 if (asus->throttle_thermal_policy_available)
3301 throttle_thermal_policy_switch_next(asus);
3302 return;
3303
3304 }
3305
3306 if (is_display_toggle(code) && asus->driver->quirks->no_display_toggle)
3307 return;
3308
3309 if (!sparse_keymap_report_event(asus->inputdev, code,
3310 key_value, autorelease))
3311 pr_info("Unknown key code 0x%x\n", code);
3312 }
3313
asus_wmi_notify(u32 value,void * context)3314 static void asus_wmi_notify(u32 value, void *context)
3315 {
3316 struct asus_wmi *asus = context;
3317 int code;
3318 int i;
3319
3320 for (i = 0; i < WMI_EVENT_QUEUE_SIZE + 1; i++) {
3321 code = asus_wmi_get_event_code(value);
3322 if (code < 0) {
3323 pr_warn("Failed to get notify code: %d\n", code);
3324 return;
3325 }
3326
3327 if (code == WMI_EVENT_QUEUE_END || code == WMI_EVENT_MASK)
3328 return;
3329
3330 asus_wmi_handle_event_code(code, asus);
3331
3332 /*
3333 * Double check that queue is present:
3334 * ATK (with queue) uses 0xff, ASUSWMI (without) 0xd2.
3335 */
3336 if (!asus->wmi_event_queue || value != WMI_EVENT_VALUE_ATK)
3337 return;
3338 }
3339
3340 pr_warn("Failed to process event queue, last code: 0x%x\n", code);
3341 }
3342
asus_wmi_notify_queue_flush(struct asus_wmi * asus)3343 static int asus_wmi_notify_queue_flush(struct asus_wmi *asus)
3344 {
3345 int code;
3346 int i;
3347
3348 for (i = 0; i < WMI_EVENT_QUEUE_SIZE + 1; i++) {
3349 code = asus_wmi_get_event_code(WMI_EVENT_VALUE_ATK);
3350 if (code < 0) {
3351 pr_warn("Failed to get event during flush: %d\n", code);
3352 return code;
3353 }
3354
3355 if (code == WMI_EVENT_QUEUE_END || code == WMI_EVENT_MASK)
3356 return 0;
3357 }
3358
3359 pr_warn("Failed to flush event queue\n");
3360 return -EIO;
3361 }
3362
3363 /* Sysfs **********************************************************************/
3364
store_sys_wmi(struct asus_wmi * asus,int devid,const char * buf,size_t count)3365 static ssize_t store_sys_wmi(struct asus_wmi *asus, int devid,
3366 const char *buf, size_t count)
3367 {
3368 u32 retval;
3369 int err, value;
3370
3371 value = asus_wmi_get_devstate_simple(asus, devid);
3372 if (value < 0)
3373 return value;
3374
3375 err = kstrtoint(buf, 0, &value);
3376 if (err)
3377 return err;
3378
3379 err = asus_wmi_set_devstate(devid, value, &retval);
3380 if (err < 0)
3381 return err;
3382
3383 return count;
3384 }
3385
show_sys_wmi(struct asus_wmi * asus,int devid,char * buf)3386 static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
3387 {
3388 int value = asus_wmi_get_devstate_simple(asus, devid);
3389
3390 if (value < 0)
3391 return value;
3392
3393 return sprintf(buf, "%d\n", value);
3394 }
3395
3396 #define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \
3397 static ssize_t show_##_name(struct device *dev, \
3398 struct device_attribute *attr, \
3399 char *buf) \
3400 { \
3401 struct asus_wmi *asus = dev_get_drvdata(dev); \
3402 \
3403 return show_sys_wmi(asus, _cm, buf); \
3404 } \
3405 static ssize_t store_##_name(struct device *dev, \
3406 struct device_attribute *attr, \
3407 const char *buf, size_t count) \
3408 { \
3409 struct asus_wmi *asus = dev_get_drvdata(dev); \
3410 \
3411 return store_sys_wmi(asus, _cm, buf, count); \
3412 } \
3413 static struct device_attribute dev_attr_##_name = { \
3414 .attr = { \
3415 .name = __stringify(_name), \
3416 .mode = _mode }, \
3417 .show = show_##_name, \
3418 .store = store_##_name, \
3419 }
3420
3421 ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD);
3422 ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA);
3423 ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
3424 ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume, 0644, ASUS_WMI_DEVID_LID_RESUME);
3425 ASUS_WMI_CREATE_DEVICE_ATTR(als_enable, 0644, ASUS_WMI_DEVID_ALS_ENABLE);
3426
cpufv_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)3427 static ssize_t cpufv_store(struct device *dev, struct device_attribute *attr,
3428 const char *buf, size_t count)
3429 {
3430 int value, rv;
3431
3432 rv = kstrtoint(buf, 0, &value);
3433 if (rv)
3434 return rv;
3435
3436 if (value < 0 || value > 2)
3437 return -EINVAL;
3438
3439 rv = asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL);
3440 if (rv < 0)
3441 return rv;
3442
3443 return count;
3444 }
3445
3446 static DEVICE_ATTR_WO(cpufv);
3447
3448 static struct attribute *platform_attributes[] = {
3449 &dev_attr_cpufv.attr,
3450 &dev_attr_camera.attr,
3451 &dev_attr_cardr.attr,
3452 &dev_attr_touchpad.attr,
3453 &dev_attr_egpu_enable.attr,
3454 &dev_attr_dgpu_disable.attr,
3455 &dev_attr_gpu_mux_mode.attr,
3456 &dev_attr_lid_resume.attr,
3457 &dev_attr_als_enable.attr,
3458 &dev_attr_fan_boost_mode.attr,
3459 &dev_attr_throttle_thermal_policy.attr,
3460 &dev_attr_panel_od.attr,
3461 NULL
3462 };
3463
asus_sysfs_is_visible(struct kobject * kobj,struct attribute * attr,int idx)3464 static umode_t asus_sysfs_is_visible(struct kobject *kobj,
3465 struct attribute *attr, int idx)
3466 {
3467 struct device *dev = kobj_to_dev(kobj);
3468 struct asus_wmi *asus = dev_get_drvdata(dev);
3469 bool ok = true;
3470 int devid = -1;
3471
3472 if (attr == &dev_attr_camera.attr)
3473 devid = ASUS_WMI_DEVID_CAMERA;
3474 else if (attr == &dev_attr_cardr.attr)
3475 devid = ASUS_WMI_DEVID_CARDREADER;
3476 else if (attr == &dev_attr_touchpad.attr)
3477 devid = ASUS_WMI_DEVID_TOUCHPAD;
3478 else if (attr == &dev_attr_lid_resume.attr)
3479 devid = ASUS_WMI_DEVID_LID_RESUME;
3480 else if (attr == &dev_attr_als_enable.attr)
3481 devid = ASUS_WMI_DEVID_ALS_ENABLE;
3482 else if (attr == &dev_attr_egpu_enable.attr)
3483 ok = asus->egpu_enable_available;
3484 else if (attr == &dev_attr_dgpu_disable.attr)
3485 ok = asus->dgpu_disable_available;
3486 else if (attr == &dev_attr_gpu_mux_mode.attr)
3487 ok = asus->gpu_mux_mode_available;
3488 else if (attr == &dev_attr_fan_boost_mode.attr)
3489 ok = asus->fan_boost_mode_available;
3490 else if (attr == &dev_attr_throttle_thermal_policy.attr)
3491 ok = asus->throttle_thermal_policy_available;
3492 else if (attr == &dev_attr_panel_od.attr)
3493 ok = asus->panel_overdrive_available;
3494
3495 if (devid != -1)
3496 ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
3497
3498 return ok ? attr->mode : 0;
3499 }
3500
3501 static const struct attribute_group platform_attribute_group = {
3502 .is_visible = asus_sysfs_is_visible,
3503 .attrs = platform_attributes
3504 };
3505
asus_wmi_sysfs_exit(struct platform_device * device)3506 static void asus_wmi_sysfs_exit(struct platform_device *device)
3507 {
3508 sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
3509 }
3510
asus_wmi_sysfs_init(struct platform_device * device)3511 static int asus_wmi_sysfs_init(struct platform_device *device)
3512 {
3513 return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
3514 }
3515
3516 /* Platform device ************************************************************/
3517
asus_wmi_platform_init(struct asus_wmi * asus)3518 static int asus_wmi_platform_init(struct asus_wmi *asus)
3519 {
3520 struct device *dev = &asus->platform_device->dev;
3521 char *wmi_uid;
3522 int rv;
3523
3524 /* INIT enable hotkeys on some models */
3525 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv))
3526 pr_info("Initialization: %#x\n", rv);
3527
3528 /* We don't know yet what to do with this version... */
3529 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) {
3530 pr_info("BIOS WMI version: %d.%d\n", rv >> 16, rv & 0xFF);
3531 asus->spec = rv;
3532 }
3533
3534 /*
3535 * The SFUN method probably allows the original driver to get the list
3536 * of features supported by a given model. For now, 0x0100 or 0x0800
3537 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
3538 * The significance of others is yet to be found.
3539 */
3540 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) {
3541 pr_info("SFUN value: %#x\n", rv);
3542 asus->sfun = rv;
3543 }
3544
3545 /*
3546 * Eee PC and Notebooks seems to have different method_id for DSTS,
3547 * but it may also be related to the BIOS's SPEC.
3548 * Note, on most Eeepc, there is no way to check if a method exist
3549 * or note, while on notebooks, they returns 0xFFFFFFFE on failure,
3550 * but once again, SPEC may probably be used for that kind of things.
3551 *
3552 * Additionally at least TUF Gaming series laptops return nothing for
3553 * unknown methods, so the detection in this way is not possible.
3554 *
3555 * There is strong indication that only ACPI WMI devices that have _UID
3556 * equal to "ASUSWMI" use DCTS whereas those with "ATK" use DSTS.
3557 */
3558 wmi_uid = wmi_get_acpi_device_uid(ASUS_WMI_MGMT_GUID);
3559 if (!wmi_uid)
3560 return -ENODEV;
3561
3562 if (!strcmp(wmi_uid, ASUS_ACPI_UID_ASUSWMI)) {
3563 dev_info(dev, "Detected ASUSWMI, use DCTS\n");
3564 asus->dsts_id = ASUS_WMI_METHODID_DCTS;
3565 } else {
3566 dev_info(dev, "Detected %s, not ASUSWMI, use DSTS\n", wmi_uid);
3567 asus->dsts_id = ASUS_WMI_METHODID_DSTS;
3568 }
3569
3570 /*
3571 * Some devices can have multiple event codes stored in a queue before
3572 * the module load if it was unloaded intermittently after calling
3573 * the INIT method (enables event handling). The WMI notify handler is
3574 * expected to retrieve all event codes until a retrieved code equals
3575 * queue end marker (One or Ones). Old codes are flushed from the queue
3576 * upon module load. Not enabling this when it should be has minimal
3577 * visible impact so fall back if anything goes wrong.
3578 */
3579 wmi_uid = wmi_get_acpi_device_uid(asus->driver->event_guid);
3580 if (wmi_uid && !strcmp(wmi_uid, ASUS_ACPI_UID_ATK)) {
3581 dev_info(dev, "Detected ATK, enable event queue\n");
3582
3583 if (!asus_wmi_notify_queue_flush(asus))
3584 asus->wmi_event_queue = true;
3585 }
3586
3587 /* CWAP allow to define the behavior of the Fn+F2 key,
3588 * this method doesn't seems to be present on Eee PCs */
3589 if (asus->driver->quirks->wapf >= 0)
3590 asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP,
3591 asus->driver->quirks->wapf, NULL);
3592
3593 return 0;
3594 }
3595
3596 /* debugfs ********************************************************************/
3597
3598 struct asus_wmi_debugfs_node {
3599 struct asus_wmi *asus;
3600 char *name;
3601 int (*show) (struct seq_file *m, void *data);
3602 };
3603
show_dsts(struct seq_file * m,void * data)3604 static int show_dsts(struct seq_file *m, void *data)
3605 {
3606 struct asus_wmi *asus = m->private;
3607 int err;
3608 u32 retval = -1;
3609
3610 err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
3611 if (err < 0)
3612 return err;
3613
3614 seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval);
3615
3616 return 0;
3617 }
3618
show_devs(struct seq_file * m,void * data)3619 static int show_devs(struct seq_file *m, void *data)
3620 {
3621 struct asus_wmi *asus = m->private;
3622 int err;
3623 u32 retval = -1;
3624
3625 err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
3626 &retval);
3627 if (err < 0)
3628 return err;
3629
3630 seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id,
3631 asus->debug.ctrl_param, retval);
3632
3633 return 0;
3634 }
3635
show_call(struct seq_file * m,void * data)3636 static int show_call(struct seq_file *m, void *data)
3637 {
3638 struct asus_wmi *asus = m->private;
3639 struct bios_args args = {
3640 .arg0 = asus->debug.dev_id,
3641 .arg1 = asus->debug.ctrl_param,
3642 };
3643 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
3644 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
3645 union acpi_object *obj;
3646 acpi_status status;
3647
3648 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
3649 0, asus->debug.method_id,
3650 &input, &output);
3651
3652 if (ACPI_FAILURE(status))
3653 return -EIO;
3654
3655 obj = (union acpi_object *)output.pointer;
3656 if (obj && obj->type == ACPI_TYPE_INTEGER)
3657 seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id,
3658 asus->debug.dev_id, asus->debug.ctrl_param,
3659 (u32) obj->integer.value);
3660 else
3661 seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id,
3662 asus->debug.dev_id, asus->debug.ctrl_param,
3663 obj ? obj->type : -1);
3664
3665 kfree(obj);
3666
3667 return 0;
3668 }
3669
3670 static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = {
3671 {NULL, "devs", show_devs},
3672 {NULL, "dsts", show_dsts},
3673 {NULL, "call", show_call},
3674 };
3675
asus_wmi_debugfs_open(struct inode * inode,struct file * file)3676 static int asus_wmi_debugfs_open(struct inode *inode, struct file *file)
3677 {
3678 struct asus_wmi_debugfs_node *node = inode->i_private;
3679
3680 return single_open(file, node->show, node->asus);
3681 }
3682
3683 static const struct file_operations asus_wmi_debugfs_io_ops = {
3684 .owner = THIS_MODULE,
3685 .open = asus_wmi_debugfs_open,
3686 .read = seq_read,
3687 .llseek = seq_lseek,
3688 .release = single_release,
3689 };
3690
asus_wmi_debugfs_exit(struct asus_wmi * asus)3691 static void asus_wmi_debugfs_exit(struct asus_wmi *asus)
3692 {
3693 debugfs_remove_recursive(asus->debug.root);
3694 }
3695
asus_wmi_debugfs_init(struct asus_wmi * asus)3696 static void asus_wmi_debugfs_init(struct asus_wmi *asus)
3697 {
3698 int i;
3699
3700 asus->debug.root = debugfs_create_dir(asus->driver->name, NULL);
3701
3702 debugfs_create_x32("method_id", S_IRUGO | S_IWUSR, asus->debug.root,
3703 &asus->debug.method_id);
3704
3705 debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR, asus->debug.root,
3706 &asus->debug.dev_id);
3707
3708 debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR, asus->debug.root,
3709 &asus->debug.ctrl_param);
3710
3711 for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) {
3712 struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i];
3713
3714 node->asus = asus;
3715 debugfs_create_file(node->name, S_IFREG | S_IRUGO,
3716 asus->debug.root, node,
3717 &asus_wmi_debugfs_io_ops);
3718 }
3719 }
3720
3721 /* Init / exit ****************************************************************/
3722
asus_wmi_add(struct platform_device * pdev)3723 static int asus_wmi_add(struct platform_device *pdev)
3724 {
3725 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
3726 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
3727 struct asus_wmi *asus;
3728 acpi_status status;
3729 int err;
3730 u32 result;
3731
3732 asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL);
3733 if (!asus)
3734 return -ENOMEM;
3735
3736 asus->driver = wdrv;
3737 asus->platform_device = pdev;
3738 wdrv->platform_device = pdev;
3739 platform_set_drvdata(asus->platform_device, asus);
3740
3741 if (wdrv->detect_quirks)
3742 wdrv->detect_quirks(asus->driver);
3743
3744 err = asus_wmi_platform_init(asus);
3745 if (err)
3746 goto fail_platform;
3747
3748 asus->egpu_enable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU);
3749 asus->dgpu_disable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_DGPU);
3750 asus->gpu_mux_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX);
3751 asus->kbd_rgb_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE);
3752 asus->kbd_rgb_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_STATE);
3753 asus->panel_overdrive_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PANEL_OD);
3754
3755 err = fan_boost_mode_check_present(asus);
3756 if (err)
3757 goto fail_fan_boost_mode;
3758
3759 err = throttle_thermal_policy_check_present(asus);
3760 if (err)
3761 goto fail_throttle_thermal_policy;
3762 else
3763 throttle_thermal_policy_set_default(asus);
3764
3765 err = platform_profile_setup(asus);
3766 if (err)
3767 goto fail_platform_profile_setup;
3768
3769 err = asus_wmi_sysfs_init(asus->platform_device);
3770 if (err)
3771 goto fail_sysfs;
3772
3773 err = asus_wmi_input_init(asus);
3774 if (err)
3775 goto fail_input;
3776
3777 err = asus_wmi_fan_init(asus); /* probably no problems on error */
3778
3779 err = asus_wmi_hwmon_init(asus);
3780 if (err)
3781 goto fail_hwmon;
3782
3783 err = asus_wmi_custom_fan_curve_init(asus);
3784 if (err)
3785 goto fail_custom_fan_curve;
3786
3787 err = asus_wmi_led_init(asus);
3788 if (err)
3789 goto fail_leds;
3790
3791 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result);
3792 if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT))
3793 asus->driver->wlan_ctrl_by_user = 1;
3794
3795 if (!(asus->driver->wlan_ctrl_by_user && ashs_present())) {
3796 err = asus_wmi_rfkill_init(asus);
3797 if (err)
3798 goto fail_rfkill;
3799 }
3800
3801 if (asus->driver->quirks->wmi_force_als_set)
3802 asus_wmi_set_als();
3803
3804 if (asus->driver->quirks->xusb2pr)
3805 asus_wmi_set_xusb2pr(asus);
3806
3807 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
3808 err = asus_wmi_backlight_init(asus);
3809 if (err && err != -ENODEV)
3810 goto fail_backlight;
3811 } else if (asus->driver->quirks->wmi_backlight_set_devstate)
3812 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL);
3813
3814 if (asus_wmi_has_fnlock_key(asus)) {
3815 asus->fnlock_locked = fnlock_default;
3816 asus_wmi_fnlock_update(asus);
3817 }
3818
3819 status = wmi_install_notify_handler(asus->driver->event_guid,
3820 asus_wmi_notify, asus);
3821 if (ACPI_FAILURE(status)) {
3822 pr_err("Unable to register notify handler - %d\n", status);
3823 err = -ENODEV;
3824 goto fail_wmi_handler;
3825 }
3826
3827 asus_wmi_battery_init(asus);
3828
3829 asus_wmi_debugfs_init(asus);
3830
3831 return 0;
3832
3833 fail_wmi_handler:
3834 asus_wmi_backlight_exit(asus);
3835 fail_backlight:
3836 asus_wmi_rfkill_exit(asus);
3837 fail_rfkill:
3838 asus_wmi_led_exit(asus);
3839 fail_leds:
3840 fail_hwmon:
3841 asus_wmi_input_exit(asus);
3842 fail_input:
3843 asus_wmi_sysfs_exit(asus->platform_device);
3844 fail_sysfs:
3845 fail_throttle_thermal_policy:
3846 fail_custom_fan_curve:
3847 fail_platform_profile_setup:
3848 if (asus->platform_profile_support)
3849 platform_profile_remove();
3850 fail_fan_boost_mode:
3851 fail_platform:
3852 kfree(asus);
3853 return err;
3854 }
3855
asus_wmi_remove(struct platform_device * device)3856 static int asus_wmi_remove(struct platform_device *device)
3857 {
3858 struct asus_wmi *asus;
3859
3860 asus = platform_get_drvdata(device);
3861 wmi_remove_notify_handler(asus->driver->event_guid);
3862 asus_wmi_backlight_exit(asus);
3863 asus_wmi_input_exit(asus);
3864 asus_wmi_led_exit(asus);
3865 asus_wmi_rfkill_exit(asus);
3866 asus_wmi_debugfs_exit(asus);
3867 asus_wmi_sysfs_exit(asus->platform_device);
3868 asus_fan_set_auto(asus);
3869 throttle_thermal_policy_set_default(asus);
3870 asus_wmi_battery_exit(asus);
3871
3872 if (asus->platform_profile_support)
3873 platform_profile_remove();
3874
3875 kfree(asus);
3876 return 0;
3877 }
3878
3879 /* Platform driver - hibernate/resume callbacks *******************************/
3880
asus_hotk_thaw(struct device * device)3881 static int asus_hotk_thaw(struct device *device)
3882 {
3883 struct asus_wmi *asus = dev_get_drvdata(device);
3884
3885 if (asus->wlan.rfkill) {
3886 bool wlan;
3887
3888 /*
3889 * Work around bios bug - acpi _PTS turns off the wireless led
3890 * during suspend. Normally it restores it on resume, but
3891 * we should kick it ourselves in case hibernation is aborted.
3892 */
3893 wlan = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
3894 asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL);
3895 }
3896
3897 return 0;
3898 }
3899
asus_hotk_resume(struct device * device)3900 static int asus_hotk_resume(struct device *device)
3901 {
3902 struct asus_wmi *asus = dev_get_drvdata(device);
3903
3904 if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
3905 kbd_led_update(asus);
3906
3907 if (asus_wmi_has_fnlock_key(asus))
3908 asus_wmi_fnlock_update(asus);
3909
3910 asus_wmi_tablet_mode_get_state(asus);
3911 return 0;
3912 }
3913
asus_hotk_restore(struct device * device)3914 static int asus_hotk_restore(struct device *device)
3915 {
3916 struct asus_wmi *asus = dev_get_drvdata(device);
3917 int bl;
3918
3919 /* Refresh both wlan rfkill state and pci hotplug */
3920 if (asus->wlan.rfkill)
3921 asus_rfkill_hotplug(asus);
3922
3923 if (asus->bluetooth.rfkill) {
3924 bl = !asus_wmi_get_devstate_simple(asus,
3925 ASUS_WMI_DEVID_BLUETOOTH);
3926 rfkill_set_sw_state(asus->bluetooth.rfkill, bl);
3927 }
3928 if (asus->wimax.rfkill) {
3929 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WIMAX);
3930 rfkill_set_sw_state(asus->wimax.rfkill, bl);
3931 }
3932 if (asus->wwan3g.rfkill) {
3933 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WWAN3G);
3934 rfkill_set_sw_state(asus->wwan3g.rfkill, bl);
3935 }
3936 if (asus->gps.rfkill) {
3937 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPS);
3938 rfkill_set_sw_state(asus->gps.rfkill, bl);
3939 }
3940 if (asus->uwb.rfkill) {
3941 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_UWB);
3942 rfkill_set_sw_state(asus->uwb.rfkill, bl);
3943 }
3944 if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
3945 kbd_led_update(asus);
3946
3947 if (asus_wmi_has_fnlock_key(asus))
3948 asus_wmi_fnlock_update(asus);
3949
3950 asus_wmi_tablet_mode_get_state(asus);
3951 return 0;
3952 }
3953
3954 static const struct dev_pm_ops asus_pm_ops = {
3955 .thaw = asus_hotk_thaw,
3956 .restore = asus_hotk_restore,
3957 .resume = asus_hotk_resume,
3958 };
3959
3960 /* Registration ***************************************************************/
3961
asus_wmi_probe(struct platform_device * pdev)3962 static int asus_wmi_probe(struct platform_device *pdev)
3963 {
3964 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
3965 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
3966 int ret;
3967
3968 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
3969 pr_warn("ASUS Management GUID not found\n");
3970 return -ENODEV;
3971 }
3972
3973 if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) {
3974 pr_warn("ASUS Event GUID not found\n");
3975 return -ENODEV;
3976 }
3977
3978 if (wdrv->probe) {
3979 ret = wdrv->probe(pdev);
3980 if (ret)
3981 return ret;
3982 }
3983
3984 return asus_wmi_add(pdev);
3985 }
3986
3987 static bool used;
3988
asus_wmi_register_driver(struct asus_wmi_driver * driver)3989 int __init_or_module asus_wmi_register_driver(struct asus_wmi_driver *driver)
3990 {
3991 struct platform_driver *platform_driver;
3992 struct platform_device *platform_device;
3993
3994 if (used)
3995 return -EBUSY;
3996
3997 platform_driver = &driver->platform_driver;
3998 platform_driver->remove = asus_wmi_remove;
3999 platform_driver->driver.owner = driver->owner;
4000 platform_driver->driver.name = driver->name;
4001 platform_driver->driver.pm = &asus_pm_ops;
4002
4003 platform_device = platform_create_bundle(platform_driver,
4004 asus_wmi_probe,
4005 NULL, 0, NULL, 0);
4006 if (IS_ERR(platform_device))
4007 return PTR_ERR(platform_device);
4008
4009 used = true;
4010 return 0;
4011 }
4012 EXPORT_SYMBOL_GPL(asus_wmi_register_driver);
4013
asus_wmi_unregister_driver(struct asus_wmi_driver * driver)4014 void asus_wmi_unregister_driver(struct asus_wmi_driver *driver)
4015 {
4016 platform_device_unregister(driver->platform_device);
4017 platform_driver_unregister(&driver->platform_driver);
4018 used = false;
4019 }
4020 EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver);
4021
asus_wmi_init(void)4022 static int __init asus_wmi_init(void)
4023 {
4024 pr_info("ASUS WMI generic driver loaded\n");
4025 return 0;
4026 }
4027
asus_wmi_exit(void)4028 static void __exit asus_wmi_exit(void)
4029 {
4030 pr_info("ASUS WMI generic driver unloaded\n");
4031 }
4032
4033 module_init(asus_wmi_init);
4034 module_exit(asus_wmi_exit);
4035
