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Merge tag 'uml-for-linus-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux.git] / drivers / platform / x86 / asus-wmi.c
blob38ef778e8c19b982b051edd52888faee10ce4877
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Asus PC WMI hotkey driver
4 *
5 * Copyright(C) 2010 Intel Corporation.
6 * Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com>
7 *
8 * Portions based on wistron_btns.c:
9 * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
10 * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
11 * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
12 */
13
14 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
15
16 #include <linux/acpi.h>
17 #include <linux/backlight.h>
18 #include <linux/debugfs.h>
19 #include <linux/delay.h>
20 #include <linux/dmi.h>
21 #include <linux/hwmon.h>
22 #include <linux/hwmon-sysfs.h>
23 #include <linux/init.h>
24 #include <linux/input.h>
25 #include <linux/input/sparse-keymap.h>
26 #include <linux/kernel.h>
27 #include <linux/leds.h>
28 #include <linux/minmax.h>
29 #include <linux/module.h>
30 #include <linux/pci.h>
31 #include <linux/pci_hotplug.h>
32 #include <linux/platform_data/x86/asus-wmi.h>
33 #include <linux/platform_device.h>
34 #include <linux/platform_profile.h>
35 #include <linux/power_supply.h>
36 #include <linux/rfkill.h>
37 #include <linux/seq_file.h>
38 #include <linux/slab.h>
39 #include <linux/types.h>
40 #include <linux/units.h>
41
42 #include <acpi/battery.h>
43 #include <acpi/video.h>
44
45 #include "asus-wmi.h"
46
47 MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>");
48 MODULE_AUTHOR("Yong Wang <yong.y.wang@intel.com>");
49 MODULE_DESCRIPTION("Asus Generic WMI Driver");
50 MODULE_LICENSE("GPL");
51
52 static bool fnlock_default = true;
53 module_param(fnlock_default, bool, 0444);
54
55 #define to_asus_wmi_driver(pdrv) \
56 (container_of((pdrv), struct asus_wmi_driver, platform_driver))
57
58 #define ASUS_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66"
59
60 #define NOTIFY_BRNUP_MIN 0x11
61 #define NOTIFY_BRNUP_MAX 0x1f
62 #define NOTIFY_BRNDOWN_MIN 0x20
63 #define NOTIFY_BRNDOWN_MAX 0x2e
64 #define NOTIFY_FNLOCK_TOGGLE 0x4e
65 #define NOTIFY_KBD_DOCK_CHANGE 0x75
66 #define NOTIFY_KBD_BRTUP 0xc4
67 #define NOTIFY_KBD_BRTDWN 0xc5
68 #define NOTIFY_KBD_BRTTOGGLE 0xc7
69 #define NOTIFY_KBD_FBM 0x99
70 #define NOTIFY_KBD_TTP 0xae
71 #define NOTIFY_LID_FLIP 0xfa
72 #define NOTIFY_LID_FLIP_ROG 0xbd
73
74 #define ASUS_WMI_FNLOCK_BIOS_DISABLED BIT(0)
75
76 #define ASUS_MID_FAN_DESC "mid_fan"
77 #define ASUS_GPU_FAN_DESC "gpu_fan"
78 #define ASUS_FAN_DESC "cpu_fan"
79 #define ASUS_FAN_MFUN 0x13
80 #define ASUS_FAN_SFUN_READ 0x06
81 #define ASUS_FAN_SFUN_WRITE 0x07
82
83 /* Based on standard hwmon pwmX_enable values */
84 #define ASUS_FAN_CTRL_FULLSPEED 0
85 #define ASUS_FAN_CTRL_MANUAL 1
86 #define ASUS_FAN_CTRL_AUTO 2
87
88 #define ASUS_FAN_BOOST_MODE_NORMAL 0
89 #define ASUS_FAN_BOOST_MODE_OVERBOOST 1
90 #define ASUS_FAN_BOOST_MODE_OVERBOOST_MASK 0x01
91 #define ASUS_FAN_BOOST_MODE_SILENT 2
92 #define ASUS_FAN_BOOST_MODE_SILENT_MASK 0x02
93 #define ASUS_FAN_BOOST_MODES_MASK 0x03
94
95 #define ASUS_THROTTLE_THERMAL_POLICY_DEFAULT 0
96 #define ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST 1
97 #define ASUS_THROTTLE_THERMAL_POLICY_SILENT 2
98
99 #define ASUS_THROTTLE_THERMAL_POLICY_DEFAULT_VIVO 0
100 #define ASUS_THROTTLE_THERMAL_POLICY_SILENT_VIVO 1
101 #define ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST_VIVO 2
102
103 #define PLATFORM_PROFILE_MAX 2
104
105 #define USB_INTEL_XUSB2PR 0xD0
106 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31
107
108 #define ASUS_ACPI_UID_ASUSWMI "ASUSWMI"
109
110 #define WMI_EVENT_MASK 0xFFFF
111
112 #define FAN_CURVE_POINTS 8
113 #define FAN_CURVE_BUF_LEN 32
114 #define FAN_CURVE_DEV_CPU 0x00
115 #define FAN_CURVE_DEV_GPU 0x01
116 #define FAN_CURVE_DEV_MID 0x02
117 /* Mask to determine if setting temperature or percentage */
118 #define FAN_CURVE_PWM_MASK 0x04
119
120 /* Limits for tunables available on ASUS ROG laptops */
121 #define PPT_TOTAL_MIN 5
122 #define PPT_TOTAL_MAX 250
123 #define PPT_CPU_MIN 5
124 #define PPT_CPU_MAX 130
125 #define NVIDIA_BOOST_MIN 5
126 #define NVIDIA_BOOST_MAX 25
127 #define NVIDIA_TEMP_MIN 75
128 #define NVIDIA_TEMP_MAX 87
129
130 #define ASUS_SCREENPAD_BRIGHT_MIN 20
131 #define ASUS_SCREENPAD_BRIGHT_MAX 255
132 #define ASUS_SCREENPAD_BRIGHT_DEFAULT 60
133
134 #define ASUS_MINI_LED_MODE_MASK 0x03
135 /* Standard modes for devices with only on/off */
136 #define ASUS_MINI_LED_OFF 0x00
137 #define ASUS_MINI_LED_ON 0x01
138 /* New mode on some devices, define here to clarify remapping later */
139 #define ASUS_MINI_LED_STRONG_MODE 0x02
140 /* New modes for devices with 3 mini-led mode types */
141 #define ASUS_MINI_LED_2024_WEAK 0x00
142 #define ASUS_MINI_LED_2024_STRONG 0x01
143 #define ASUS_MINI_LED_2024_OFF 0x02
144
145 /* Controls the power state of the USB0 hub on ROG Ally which input is on */
146 #define ASUS_USB0_PWR_EC0_CSEE "\\_SB.PCI0.SBRG.EC0.CSEE"
147 /* 300ms so far seems to produce a reliable result on AC and battery */
148 #define ASUS_USB0_PWR_EC0_CSEE_WAIT 1500
149
150 static const char * const ashs_ids[] = { "ATK4001", "ATK4002", NULL };
151
152 static int throttle_thermal_policy_write(struct asus_wmi *);
153
154 static const struct dmi_system_id asus_ally_mcu_quirk[] = {
155 {
156 .matches = {
157 DMI_MATCH(DMI_BOARD_NAME, "RC71L"),
158 },
159 },
160 {
161 .matches = {
162 DMI_MATCH(DMI_BOARD_NAME, "RC72L"),
163 },
164 },
165 { },
166 };
167
168 static bool ashs_present(void)
169 {
170 int i = 0;
171 while (ashs_ids[i]) {
172 if (acpi_dev_found(ashs_ids[i++]))
173 return true;
174 }
175 return false;
176 }
177
178 struct bios_args {
179 u32 arg0;
180 u32 arg1;
181 u32 arg2; /* At least TUF Gaming series uses 3 dword input buffer. */
182 u32 arg3;
183 u32 arg4; /* Some ROG laptops require a full 5 input args */
184 u32 arg5;
185 } __packed;
186
187 /*
188 * Struct that's used for all methods called via AGFN. Naming is
189 * identically to the AML code.
190 */
191 struct agfn_args {
192 u16 mfun; /* probably "Multi-function" to be called */
193 u16 sfun; /* probably "Sub-function" to be called */
194 u16 len; /* size of the hole struct, including subfunction fields */
195 u8 stas; /* not used by now */
196 u8 err; /* zero on success */
197 } __packed;
198
199 /* struct used for calling fan read and write methods */
200 struct agfn_fan_args {
201 struct agfn_args agfn; /* common fields */
202 u8 fan; /* fan number: 0: set auto mode 1: 1st fan */
203 u32 speed; /* read: RPM/100 - write: 0-255 */
204 } __packed;
205
206 /*
207 * <platform>/ - debugfs root directory
208 * dev_id - current dev_id
209 * ctrl_param - current ctrl_param
210 * method_id - current method_id
211 * devs - call DEVS(dev_id, ctrl_param) and print result
212 * dsts - call DSTS(dev_id) and print result
213 * call - call method_id(dev_id, ctrl_param) and print result
214 */
215 struct asus_wmi_debug {
216 struct dentry *root;
217 u32 method_id;
218 u32 dev_id;
219 u32 ctrl_param;
220 };
221
222 struct asus_rfkill {
223 struct asus_wmi *asus;
224 struct rfkill *rfkill;
225 u32 dev_id;
226 };
227
228 enum fan_type {
229 FAN_TYPE_NONE = 0,
230 FAN_TYPE_AGFN, /* deprecated on newer platforms */
231 FAN_TYPE_SPEC83, /* starting in Spec 8.3, use CPU_FAN_CTRL */
232 };
233
234 struct fan_curve_data {
235 bool enabled;
236 u32 device_id;
237 u8 temps[FAN_CURVE_POINTS];
238 u8 percents[FAN_CURVE_POINTS];
239 };
240
241 struct asus_wmi {
242 int dsts_id;
243 int spec;
244 int sfun;
245
246 struct input_dev *inputdev;
247 struct backlight_device *backlight_device;
248 struct backlight_device *screenpad_backlight_device;
249 struct platform_device *platform_device;
250
251 struct led_classdev wlan_led;
252 int wlan_led_wk;
253 struct led_classdev tpd_led;
254 int tpd_led_wk;
255 struct led_classdev kbd_led;
256 int kbd_led_wk;
257 struct led_classdev lightbar_led;
258 int lightbar_led_wk;
259 struct led_classdev micmute_led;
260 struct led_classdev camera_led;
261 struct workqueue_struct *led_workqueue;
262 struct work_struct tpd_led_work;
263 struct work_struct wlan_led_work;
264 struct work_struct lightbar_led_work;
265
266 struct asus_rfkill wlan;
267 struct asus_rfkill bluetooth;
268 struct asus_rfkill wimax;
269 struct asus_rfkill wwan3g;
270 struct asus_rfkill gps;
271 struct asus_rfkill uwb;
272
273 int tablet_switch_event_code;
274 u32 tablet_switch_dev_id;
275 bool tablet_switch_inverted;
276
277 /* The ROG Ally device requires the MCU USB device be disconnected before suspend */
278 bool ally_mcu_usb_switch;
279
280 enum fan_type fan_type;
281 enum fan_type gpu_fan_type;
282 enum fan_type mid_fan_type;
283 int fan_pwm_mode;
284 int gpu_fan_pwm_mode;
285 int mid_fan_pwm_mode;
286 int agfn_pwm;
287
288 bool fan_boost_mode_available;
289 u8 fan_boost_mode_mask;
290 u8 fan_boost_mode;
291
292 bool egpu_enable_available;
293 bool dgpu_disable_available;
294 u32 gpu_mux_dev;
295
296 /* Tunables provided by ASUS for gaming laptops */
297 u32 ppt_pl2_sppt;
298 u32 ppt_pl1_spl;
299 u32 ppt_apu_sppt;
300 u32 ppt_platform_sppt;
301 u32 ppt_fppt;
302 u32 nv_dynamic_boost;
303 u32 nv_temp_target;
304
305 u32 kbd_rgb_dev;
306 bool kbd_rgb_state_available;
307
308 u8 throttle_thermal_policy_mode;
309 u32 throttle_thermal_policy_dev;
310
311 bool cpu_fan_curve_available;
312 bool gpu_fan_curve_available;
313 bool mid_fan_curve_available;
314 struct fan_curve_data custom_fan_curves[3];
315
316 struct device *ppdev;
317 bool platform_profile_support;
318
319 // The RSOC controls the maximum charging percentage.
320 bool battery_rsoc_available;
321
322 bool panel_overdrive_available;
323 u32 mini_led_dev_id;
324
325 struct hotplug_slot hotplug_slot;
326 struct mutex hotplug_lock;
327 struct mutex wmi_lock;
328 struct workqueue_struct *hotplug_workqueue;
329 struct work_struct hotplug_work;
330
331 bool fnlock_locked;
332
333 struct asus_wmi_debug debug;
334
335 struct asus_wmi_driver *driver;
336 };
337
338 /* WMI ************************************************************************/
339
340 static int asus_wmi_evaluate_method3(u32 method_id,
341 u32 arg0, u32 arg1, u32 arg2, u32 *retval)
342 {
343 struct bios_args args = {
344 .arg0 = arg0,
345 .arg1 = arg1,
346 .arg2 = arg2,
347 };
348 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
349 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
350 acpi_status status;
351 union acpi_object *obj;
352 u32 tmp = 0;
353
354 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
355 &input, &output);
356
357 pr_debug("%s called (0x%08x) with args: 0x%08x, 0x%08x, 0x%08x\n",
358 __func__, method_id, arg0, arg1, arg2);
359 if (ACPI_FAILURE(status)) {
360 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n",
361 __func__, method_id, arg0, -EIO);
362 return -EIO;
363 }
364
365 obj = (union acpi_object *)output.pointer;
366 if (obj && obj->type == ACPI_TYPE_INTEGER)
367 tmp = (u32) obj->integer.value;
368
369 pr_debug("Result: 0x%08x\n", tmp);
370 if (retval)
371 *retval = tmp;
372
373 kfree(obj);
374
375 if (tmp == ASUS_WMI_UNSUPPORTED_METHOD) {
376 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n",
377 __func__, method_id, arg0, -ENODEV);
378 return -ENODEV;
379 }
380
381 return 0;
382 }
383
384 int asus_wmi_evaluate_method(u32 method_id, u32 arg0, u32 arg1, u32 *retval)
385 {
386 return asus_wmi_evaluate_method3(method_id, arg0, arg1, 0, retval);
387 }
388 EXPORT_SYMBOL_GPL(asus_wmi_evaluate_method);
389
390 static int asus_wmi_evaluate_method5(u32 method_id,
391 u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4, u32 *retval)
392 {
393 struct bios_args args = {
394 .arg0 = arg0,
395 .arg1 = arg1,
396 .arg2 = arg2,
397 .arg3 = arg3,
398 .arg4 = arg4,
399 };
400 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
401 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
402 acpi_status status;
403 union acpi_object *obj;
404 u32 tmp = 0;
405
406 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
407 &input, &output);
408
409 pr_debug("%s called (0x%08x) with args: 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x\n",
410 __func__, method_id, arg0, arg1, arg2, arg3, arg4);
411 if (ACPI_FAILURE(status)) {
412 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n",
413 __func__, method_id, arg0, -EIO);
414 return -EIO;
415 }
416
417 obj = (union acpi_object *)output.pointer;
418 if (obj && obj->type == ACPI_TYPE_INTEGER)
419 tmp = (u32) obj->integer.value;
420
421 pr_debug("Result: %x\n", tmp);
422 if (retval)
423 *retval = tmp;
424
425 kfree(obj);
426
427 if (tmp == ASUS_WMI_UNSUPPORTED_METHOD) {
428 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n",
429 __func__, method_id, arg0, -ENODEV);
430 return -ENODEV;
431 }
432
433 return 0;
434 }
435
436 /*
437 * Returns as an error if the method output is not a buffer. Typically this
438 * means that the method called is unsupported.
439 */
440 static int asus_wmi_evaluate_method_buf(u32 method_id,
441 u32 arg0, u32 arg1, u8 *ret_buffer, size_t size)
442 {
443 struct bios_args args = {
444 .arg0 = arg0,
445 .arg1 = arg1,
446 .arg2 = 0,
447 };
448 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
449 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
450 acpi_status status;
451 union acpi_object *obj;
452 int err = 0;
453
454 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
455 &input, &output);
456
457 pr_debug("%s called (0x%08x) with args: 0x%08x, 0x%08x\n",
458 __func__, method_id, arg0, arg1);
459 if (ACPI_FAILURE(status)) {
460 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n",
461 __func__, method_id, arg0, -EIO);
462 return -EIO;
463 }
464
465 obj = (union acpi_object *)output.pointer;
466
467 switch (obj->type) {
468 case ACPI_TYPE_BUFFER:
469 if (obj->buffer.length > size) {
470 err = -ENOSPC;
471 break;
472 }
473 if (obj->buffer.length == 0) {
474 err = -ENODATA;
475 break;
476 }
477
478 memcpy(ret_buffer, obj->buffer.pointer, obj->buffer.length);
479 break;
480 case ACPI_TYPE_INTEGER:
481 err = (u32)obj->integer.value;
482
483 if (err == ASUS_WMI_UNSUPPORTED_METHOD)
484 err = -ENODEV;
485 /*
486 * At least one method returns a 0 with no buffer if no arg
487 * is provided, such as ASUS_WMI_DEVID_CPU_FAN_CURVE
488 */
489 if (err == 0)
490 err = -ENODATA;
491 break;
492 default:
493 err = -ENODATA;
494 break;
495 }
496
497 kfree(obj);
498
499 if (err) {
500 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n",
501 __func__, method_id, arg0, err);
502 return err;
503 }
504
505 return 0;
506 }
507
508 static int asus_wmi_evaluate_method_agfn(const struct acpi_buffer args)
509 {
510 struct acpi_buffer input;
511 u64 phys_addr;
512 u32 retval;
513 u32 status;
514
515 /*
516 * Copy to dma capable address otherwise memory corruption occurs as
517 * bios has to be able to access it.
518 */
519 input.pointer = kmemdup(args.pointer, args.length, GFP_DMA | GFP_KERNEL);
520 input.length = args.length;
521 if (!input.pointer)
522 return -ENOMEM;
523 phys_addr = virt_to_phys(input.pointer);
524
525 status = asus_wmi_evaluate_method(ASUS_WMI_METHODID_AGFN,
526 phys_addr, 0, &retval);
527 if (!status)
528 memcpy(args.pointer, input.pointer, args.length);
529
530 kfree(input.pointer);
531 if (status)
532 return -ENXIO;
533
534 return retval;
535 }
536
537 static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval)
538 {
539 int err;
540
541 err = asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval);
542
543 if (err)
544 return err;
545
546 if (*retval == ~0)
547 return -ENODEV;
548
549 return 0;
550 }
551
552 static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
553 u32 *retval)
554 {
555 return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS, dev_id,
556 ctrl_param, retval);
557 }
558
559 /* Helper for special devices with magic return codes */
560 static int asus_wmi_get_devstate_bits(struct asus_wmi *asus,
561 u32 dev_id, u32 mask)
562 {
563 u32 retval = 0;
564 int err;
565
566 err = asus_wmi_get_devstate(asus, dev_id, &retval);
567 if (err < 0)
568 return err;
569
570 if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT))
571 return -ENODEV;
572
573 if (mask == ASUS_WMI_DSTS_STATUS_BIT) {
574 if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT)
575 return -ENODEV;
576 }
577
578 return retval & mask;
579 }
580
581 static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id)
582 {
583 return asus_wmi_get_devstate_bits(asus, dev_id,
584 ASUS_WMI_DSTS_STATUS_BIT);
585 }
586
587 static bool asus_wmi_dev_is_present(struct asus_wmi *asus, u32 dev_id)
588 {
589 u32 retval;
590 int status = asus_wmi_get_devstate(asus, dev_id, &retval);
591 pr_debug("%s called (0x%08x), retval: 0x%08x\n", __func__, dev_id, retval);
592
593 return status == 0 && (retval & ASUS_WMI_DSTS_PRESENCE_BIT);
594 }
595
596 /* Input **********************************************************************/
597 static void asus_wmi_tablet_sw_report(struct asus_wmi *asus, bool value)
598 {
599 input_report_switch(asus->inputdev, SW_TABLET_MODE,
600 asus->tablet_switch_inverted ? !value : value);
601 input_sync(asus->inputdev);
602 }
603
604 static void asus_wmi_tablet_sw_init(struct asus_wmi *asus, u32 dev_id, int event_code)
605 {
606 struct device *dev = &asus->platform_device->dev;
607 int result;
608
609 result = asus_wmi_get_devstate_simple(asus, dev_id);
610 if (result >= 0) {
611 input_set_capability(asus->inputdev, EV_SW, SW_TABLET_MODE);
612 asus_wmi_tablet_sw_report(asus, result);
613 asus->tablet_switch_dev_id = dev_id;
614 asus->tablet_switch_event_code = event_code;
615 } else if (result == -ENODEV) {
616 dev_err(dev, "This device has tablet-mode-switch quirk but got ENODEV checking it. This is a bug.");
617 } else {
618 dev_err(dev, "Error checking for tablet-mode-switch: %d\n", result);
619 }
620 }
621
622 static int asus_wmi_input_init(struct asus_wmi *asus)
623 {
624 struct device *dev = &asus->platform_device->dev;
625 int err;
626
627 asus->inputdev = input_allocate_device();
628 if (!asus->inputdev)
629 return -ENOMEM;
630
631 asus->inputdev->name = asus->driver->input_name;
632 asus->inputdev->phys = asus->driver->input_phys;
633 asus->inputdev->id.bustype = BUS_HOST;
634 asus->inputdev->dev.parent = dev;
635 set_bit(EV_REP, asus->inputdev->evbit);
636
637 err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL);
638 if (err)
639 goto err_free_dev;
640
641 switch (asus->driver->quirks->tablet_switch_mode) {
642 case asus_wmi_no_tablet_switch:
643 break;
644 case asus_wmi_kbd_dock_devid:
645 asus->tablet_switch_inverted = true;
646 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_KBD_DOCK, NOTIFY_KBD_DOCK_CHANGE);
647 break;
648 case asus_wmi_lid_flip_devid:
649 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_LID_FLIP, NOTIFY_LID_FLIP);
650 break;
651 case asus_wmi_lid_flip_rog_devid:
652 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_LID_FLIP_ROG, NOTIFY_LID_FLIP_ROG);
653 break;
654 }
655
656 err = input_register_device(asus->inputdev);
657 if (err)
658 goto err_free_dev;
659
660 return 0;
661
662 err_free_dev:
663 input_free_device(asus->inputdev);
664 return err;
665 }
666
667 static void asus_wmi_input_exit(struct asus_wmi *asus)
668 {
669 if (asus->inputdev)
670 input_unregister_device(asus->inputdev);
671
672 asus->inputdev = NULL;
673 }
674
675 /* Tablet mode ****************************************************************/
676
677 static void asus_wmi_tablet_mode_get_state(struct asus_wmi *asus)
678 {
679 int result;
680
681 if (!asus->tablet_switch_dev_id)
682 return;
683
684 result = asus_wmi_get_devstate_simple(asus, asus->tablet_switch_dev_id);
685 if (result >= 0)
686 asus_wmi_tablet_sw_report(asus, result);
687 }
688
689 /* Charging mode, 1=Barrel, 2=USB ******************************************/
690 static ssize_t charge_mode_show(struct device *dev,
691 struct device_attribute *attr, char *buf)
692 {
693 struct asus_wmi *asus = dev_get_drvdata(dev);
694 int result, value;
695
696 result = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CHARGE_MODE, &value);
697 if (result < 0)
698 return result;
699
700 return sysfs_emit(buf, "%d\n", value & 0xff);
701 }
702
703 static DEVICE_ATTR_RO(charge_mode);
704
705 /* dGPU ********************************************************************/
706 static ssize_t dgpu_disable_show(struct device *dev,
707 struct device_attribute *attr, char *buf)
708 {
709 struct asus_wmi *asus = dev_get_drvdata(dev);
710 int result;
711
712 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_DGPU);
713 if (result < 0)
714 return result;
715
716 return sysfs_emit(buf, "%d\n", result);
717 }
718
719 /*
720 * A user may be required to store the value twice, typcial store first, then
721 * rescan PCI bus to activate power, then store a second time to save correctly.
722 * The reason for this is that an extra code path in the ACPI is enabled when
723 * the device and bus are powered.
724 */
725 static ssize_t dgpu_disable_store(struct device *dev,
726 struct device_attribute *attr,
727 const char *buf, size_t count)
728 {
729 int result, err;
730 u32 disable;
731
732 struct asus_wmi *asus = dev_get_drvdata(dev);
733
734 result = kstrtou32(buf, 10, &disable);
735 if (result)
736 return result;
737
738 if (disable > 1)
739 return -EINVAL;
740
741 if (asus->gpu_mux_dev) {
742 result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev);
743 if (result < 0)
744 /* An error here may signal greater failure of GPU handling */
745 return result;
746 if (!result && disable) {
747 err = -ENODEV;
748 pr_warn("Can not disable dGPU when the MUX is in dGPU mode: %d\n", err);
749 return err;
750 }
751 }
752
753 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_DGPU, disable, &result);
754 if (err) {
755 pr_warn("Failed to set dgpu disable: %d\n", err);
756 return err;
757 }
758
759 if (result > 1) {
760 pr_warn("Failed to set dgpu disable (result): 0x%x\n", result);
761 return -EIO;
762 }
763
764 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "dgpu_disable");
765
766 return count;
767 }
768 static DEVICE_ATTR_RW(dgpu_disable);
769
770 /* eGPU ********************************************************************/
771 static ssize_t egpu_enable_show(struct device *dev,
772 struct device_attribute *attr, char *buf)
773 {
774 struct asus_wmi *asus = dev_get_drvdata(dev);
775 int result;
776
777 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU);
778 if (result < 0)
779 return result;
780
781 return sysfs_emit(buf, "%d\n", result);
782 }
783
784 /* The ACPI call to enable the eGPU also disables the internal dGPU */
785 static ssize_t egpu_enable_store(struct device *dev,
786 struct device_attribute *attr,
787 const char *buf, size_t count)
788 {
789 int result, err;
790 u32 enable;
791
792 struct asus_wmi *asus = dev_get_drvdata(dev);
793
794 err = kstrtou32(buf, 10, &enable);
795 if (err)
796 return err;
797
798 if (enable > 1)
799 return -EINVAL;
800
801 err = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
802 if (err < 0) {
803 pr_warn("Failed to get egpu connection status: %d\n", err);
804 return err;
805 }
806
807 if (asus->gpu_mux_dev) {
808 result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev);
809 if (result < 0) {
810 /* An error here may signal greater failure of GPU handling */
811 pr_warn("Failed to get gpu mux status: %d\n", result);
812 return result;
813 }
814 if (!result && enable) {
815 err = -ENODEV;
816 pr_warn("Can not enable eGPU when the MUX is in dGPU mode: %d\n", err);
817 return err;
818 }
819 }
820
821 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_EGPU, enable, &result);
822 if (err) {
823 pr_warn("Failed to set egpu state: %d\n", err);
824 return err;
825 }
826
827 if (result > 1) {
828 pr_warn("Failed to set egpu state (retval): 0x%x\n", result);
829 return -EIO;
830 }
831
832 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "egpu_enable");
833
834 return count;
835 }
836 static DEVICE_ATTR_RW(egpu_enable);
837
838 /* Is eGPU connected? *********************************************************/
839 static ssize_t egpu_connected_show(struct device *dev,
840 struct device_attribute *attr, char *buf)
841 {
842 struct asus_wmi *asus = dev_get_drvdata(dev);
843 int result;
844
845 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
846 if (result < 0)
847 return result;
848
849 return sysfs_emit(buf, "%d\n", result);
850 }
851
852 static DEVICE_ATTR_RO(egpu_connected);
853
854 /* gpu mux switch *************************************************************/
855 static ssize_t gpu_mux_mode_show(struct device *dev,
856 struct device_attribute *attr, char *buf)
857 {
858 struct asus_wmi *asus = dev_get_drvdata(dev);
859 int result;
860
861 result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev);
862 if (result < 0)
863 return result;
864
865 return sysfs_emit(buf, "%d\n", result);
866 }
867
868 static ssize_t gpu_mux_mode_store(struct device *dev,
869 struct device_attribute *attr,
870 const char *buf, size_t count)
871 {
872 struct asus_wmi *asus = dev_get_drvdata(dev);
873 int result, err;
874 u32 optimus;
875
876 err = kstrtou32(buf, 10, &optimus);
877 if (err)
878 return err;
879
880 if (optimus > 1)
881 return -EINVAL;
882
883 if (asus->dgpu_disable_available) {
884 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_DGPU);
885 if (result < 0)
886 /* An error here may signal greater failure of GPU handling */
887 return result;
888 if (result && !optimus) {
889 err = -ENODEV;
890 pr_warn("Can not switch MUX to dGPU mode when dGPU is disabled: %d\n", err);
891 return err;
892 }
893 }
894
895 if (asus->egpu_enable_available) {
896 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU);
897 if (result < 0)
898 /* An error here may signal greater failure of GPU handling */
899 return result;
900 if (result && !optimus) {
901 err = -ENODEV;
902 pr_warn("Can not switch MUX to dGPU mode when eGPU is enabled: %d\n", err);
903 return err;
904 }
905 }
906
907 err = asus_wmi_set_devstate(asus->gpu_mux_dev, optimus, &result);
908 if (err) {
909 dev_err(dev, "Failed to set GPU MUX mode: %d\n", err);
910 return err;
911 }
912 /* !1 is considered a fail by ASUS */
913 if (result != 1) {
914 dev_warn(dev, "Failed to set GPU MUX mode (result): 0x%x\n", result);
915 return -EIO;
916 }
917
918 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "gpu_mux_mode");
919
920 return count;
921 }
922 static DEVICE_ATTR_RW(gpu_mux_mode);
923
924 /* TUF Laptop Keyboard RGB Modes **********************************************/
925 static ssize_t kbd_rgb_mode_store(struct device *dev,
926 struct device_attribute *attr,
927 const char *buf, size_t count)
928 {
929 u32 cmd, mode, r, g, b, speed;
930 struct led_classdev *led;
931 struct asus_wmi *asus;
932 int err;
933
934 led = dev_get_drvdata(dev);
935 asus = container_of(led, struct asus_wmi, kbd_led);
936
937 if (sscanf(buf, "%d %d %d %d %d %d", &cmd, &mode, &r, &g, &b, &speed) != 6)
938 return -EINVAL;
939
940 /* B3 is set and B4 is save to BIOS */
941 switch (cmd) {
942 case 0:
943 cmd = 0xb3;
944 break;
945 case 1:
946 cmd = 0xb4;
947 break;
948 default:
949 return -EINVAL;
950 }
951
952 /* These are the known usable modes across all TUF/ROG */
953 if (mode >= 12 || mode == 9)
954 mode = 10;
955
956 switch (speed) {
957 case 0:
958 speed = 0xe1;
959 break;
960 case 1:
961 speed = 0xeb;
962 break;
963 case 2:
964 speed = 0xf5;
965 break;
966 default:
967 speed = 0xeb;
968 }
969
970 err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS, asus->kbd_rgb_dev,
971 cmd | (mode << 8) | (r << 16) | (g << 24), b | (speed << 8), NULL);
972 if (err)
973 return err;
974
975 return count;
976 }
977 static DEVICE_ATTR_WO(kbd_rgb_mode);
978
979 static DEVICE_STRING_ATTR_RO(kbd_rgb_mode_index, 0444,
980 "cmd mode red green blue speed");
981
982 static struct attribute *kbd_rgb_mode_attrs[] = {
983 &dev_attr_kbd_rgb_mode.attr,
984 &dev_attr_kbd_rgb_mode_index.attr.attr,
985 NULL,
986 };
987
988 static const struct attribute_group kbd_rgb_mode_group = {
989 .attrs = kbd_rgb_mode_attrs,
990 };
991
992 /* TUF Laptop Keyboard RGB State **********************************************/
993 static ssize_t kbd_rgb_state_store(struct device *dev,
994 struct device_attribute *attr,
995 const char *buf, size_t count)
996 {
997 u32 flags, cmd, boot, awake, sleep, keyboard;
998 int err;
999
1000 if (sscanf(buf, "%d %d %d %d %d", &cmd, &boot, &awake, &sleep, &keyboard) != 5)
1001 return -EINVAL;
1002
1003 if (cmd)
1004 cmd = BIT(2);
1005
1006 flags = 0;
1007 if (boot)
1008 flags |= BIT(1);
1009 if (awake)
1010 flags |= BIT(3);
1011 if (sleep)
1012 flags |= BIT(5);
1013 if (keyboard)
1014 flags |= BIT(7);
1015
1016 /* 0xbd is the required default arg0 for the method. Nothing happens otherwise */
1017 err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS,
1018 ASUS_WMI_DEVID_TUF_RGB_STATE, 0xbd | cmd << 8 | (flags << 16), 0, NULL);
1019 if (err)
1020 return err;
1021
1022 return count;
1023 }
1024 static DEVICE_ATTR_WO(kbd_rgb_state);
1025
1026 static DEVICE_STRING_ATTR_RO(kbd_rgb_state_index, 0444,
1027 "cmd boot awake sleep keyboard");
1028
1029 static struct attribute *kbd_rgb_state_attrs[] = {
1030 &dev_attr_kbd_rgb_state.attr,
1031 &dev_attr_kbd_rgb_state_index.attr.attr,
1032 NULL,
1033 };
1034
1035 static const struct attribute_group kbd_rgb_state_group = {
1036 .attrs = kbd_rgb_state_attrs,
1037 };
1038
1039 static const struct attribute_group *kbd_rgb_mode_groups[] = {
1040 NULL,
1041 NULL,
1042 NULL,
1043 };
1044
1045 /* Tunable: PPT: Intel=PL1, AMD=SPPT *****************************************/
1046 static ssize_t ppt_pl2_sppt_store(struct device *dev,
1047 struct device_attribute *attr,
1048 const char *buf, size_t count)
1049 {
1050 struct asus_wmi *asus = dev_get_drvdata(dev);
1051 int result, err;
1052 u32 value;
1053
1054 result = kstrtou32(buf, 10, &value);
1055 if (result)
1056 return result;
1057
1058 if (value < PPT_TOTAL_MIN || value > PPT_TOTAL_MAX)
1059 return -EINVAL;
1060
1061 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_PL2_SPPT, value, &result);
1062 if (err) {
1063 pr_warn("Failed to set ppt_pl2_sppt: %d\n", err);
1064 return err;
1065 }
1066
1067 if (result > 1) {
1068 pr_warn("Failed to set ppt_pl2_sppt (result): 0x%x\n", result);
1069 return -EIO;
1070 }
1071
1072 asus->ppt_pl2_sppt = value;
1073 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_pl2_sppt");
1074
1075 return count;
1076 }
1077
1078 static ssize_t ppt_pl2_sppt_show(struct device *dev,
1079 struct device_attribute *attr,
1080 char *buf)
1081 {
1082 struct asus_wmi *asus = dev_get_drvdata(dev);
1083
1084 return sysfs_emit(buf, "%u\n", asus->ppt_pl2_sppt);
1085 }
1086 static DEVICE_ATTR_RW(ppt_pl2_sppt);
1087
1088 /* Tunable: PPT, Intel=PL1, AMD=SPL ******************************************/
1089 static ssize_t ppt_pl1_spl_store(struct device *dev,
1090 struct device_attribute *attr,
1091 const char *buf, size_t count)
1092 {
1093 struct asus_wmi *asus = dev_get_drvdata(dev);
1094 int result, err;
1095 u32 value;
1096
1097 result = kstrtou32(buf, 10, &value);
1098 if (result)
1099 return result;
1100
1101 if (value < PPT_TOTAL_MIN || value > PPT_TOTAL_MAX)
1102 return -EINVAL;
1103
1104 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_PL1_SPL, value, &result);
1105 if (err) {
1106 pr_warn("Failed to set ppt_pl1_spl: %d\n", err);
1107 return err;
1108 }
1109
1110 if (result > 1) {
1111 pr_warn("Failed to set ppt_pl1_spl (result): 0x%x\n", result);
1112 return -EIO;
1113 }
1114
1115 asus->ppt_pl1_spl = value;
1116 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_pl1_spl");
1117
1118 return count;
1119 }
1120 static ssize_t ppt_pl1_spl_show(struct device *dev,
1121 struct device_attribute *attr,
1122 char *buf)
1123 {
1124 struct asus_wmi *asus = dev_get_drvdata(dev);
1125
1126 return sysfs_emit(buf, "%u\n", asus->ppt_pl1_spl);
1127 }
1128 static DEVICE_ATTR_RW(ppt_pl1_spl);
1129
1130 /* Tunable: PPT APU FPPT ******************************************************/
1131 static ssize_t ppt_fppt_store(struct device *dev,
1132 struct device_attribute *attr,
1133 const char *buf, size_t count)
1134 {
1135 struct asus_wmi *asus = dev_get_drvdata(dev);
1136 int result, err;
1137 u32 value;
1138
1139 result = kstrtou32(buf, 10, &value);
1140 if (result)
1141 return result;
1142
1143 if (value < PPT_TOTAL_MIN || value > PPT_TOTAL_MAX)
1144 return -EINVAL;
1145
1146 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_FPPT, value, &result);
1147 if (err) {
1148 pr_warn("Failed to set ppt_fppt: %d\n", err);
1149 return err;
1150 }
1151
1152 if (result > 1) {
1153 pr_warn("Failed to set ppt_fppt (result): 0x%x\n", result);
1154 return -EIO;
1155 }
1156
1157 asus->ppt_fppt = value;
1158 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_fpu_sppt");
1159
1160 return count;
1161 }
1162
1163 static ssize_t ppt_fppt_show(struct device *dev,
1164 struct device_attribute *attr,
1165 char *buf)
1166 {
1167 struct asus_wmi *asus = dev_get_drvdata(dev);
1168
1169 return sysfs_emit(buf, "%u\n", asus->ppt_fppt);
1170 }
1171 static DEVICE_ATTR_RW(ppt_fppt);
1172
1173 /* Tunable: PPT APU SPPT *****************************************************/
1174 static ssize_t ppt_apu_sppt_store(struct device *dev,
1175 struct device_attribute *attr,
1176 const char *buf, size_t count)
1177 {
1178 struct asus_wmi *asus = dev_get_drvdata(dev);
1179 int result, err;
1180 u32 value;
1181
1182 result = kstrtou32(buf, 10, &value);
1183 if (result)
1184 return result;
1185
1186 if (value < PPT_CPU_MIN || value > PPT_CPU_MAX)
1187 return -EINVAL;
1188
1189 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_APU_SPPT, value, &result);
1190 if (err) {
1191 pr_warn("Failed to set ppt_apu_sppt: %d\n", err);
1192 return err;
1193 }
1194
1195 if (result > 1) {
1196 pr_warn("Failed to set ppt_apu_sppt (result): 0x%x\n", result);
1197 return -EIO;
1198 }
1199
1200 asus->ppt_apu_sppt = value;
1201 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_apu_sppt");
1202
1203 return count;
1204 }
1205
1206 static ssize_t ppt_apu_sppt_show(struct device *dev,
1207 struct device_attribute *attr,
1208 char *buf)
1209 {
1210 struct asus_wmi *asus = dev_get_drvdata(dev);
1211
1212 return sysfs_emit(buf, "%u\n", asus->ppt_apu_sppt);
1213 }
1214 static DEVICE_ATTR_RW(ppt_apu_sppt);
1215
1216 /* Tunable: PPT platform SPPT ************************************************/
1217 static ssize_t ppt_platform_sppt_store(struct device *dev,
1218 struct device_attribute *attr,
1219 const char *buf, size_t count)
1220 {
1221 struct asus_wmi *asus = dev_get_drvdata(dev);
1222 int result, err;
1223 u32 value;
1224
1225 result = kstrtou32(buf, 10, &value);
1226 if (result)
1227 return result;
1228
1229 if (value < PPT_CPU_MIN || value > PPT_CPU_MAX)
1230 return -EINVAL;
1231
1232 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_PLAT_SPPT, value, &result);
1233 if (err) {
1234 pr_warn("Failed to set ppt_platform_sppt: %d\n", err);
1235 return err;
1236 }
1237
1238 if (result > 1) {
1239 pr_warn("Failed to set ppt_platform_sppt (result): 0x%x\n", result);
1240 return -EIO;
1241 }
1242
1243 asus->ppt_platform_sppt = value;
1244 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_platform_sppt");
1245
1246 return count;
1247 }
1248
1249 static ssize_t ppt_platform_sppt_show(struct device *dev,
1250 struct device_attribute *attr,
1251 char *buf)
1252 {
1253 struct asus_wmi *asus = dev_get_drvdata(dev);
1254
1255 return sysfs_emit(buf, "%u\n", asus->ppt_platform_sppt);
1256 }
1257 static DEVICE_ATTR_RW(ppt_platform_sppt);
1258
1259 /* Tunable: NVIDIA dynamic boost *********************************************/
1260 static ssize_t nv_dynamic_boost_store(struct device *dev,
1261 struct device_attribute *attr,
1262 const char *buf, size_t count)
1263 {
1264 struct asus_wmi *asus = dev_get_drvdata(dev);
1265 int result, err;
1266 u32 value;
1267
1268 result = kstrtou32(buf, 10, &value);
1269 if (result)
1270 return result;
1271
1272 if (value < NVIDIA_BOOST_MIN || value > NVIDIA_BOOST_MAX)
1273 return -EINVAL;
1274
1275 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_NV_DYN_BOOST, value, &result);
1276 if (err) {
1277 pr_warn("Failed to set nv_dynamic_boost: %d\n", err);
1278 return err;
1279 }
1280
1281 if (result > 1) {
1282 pr_warn("Failed to set nv_dynamic_boost (result): 0x%x\n", result);
1283 return -EIO;
1284 }
1285
1286 asus->nv_dynamic_boost = value;
1287 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "nv_dynamic_boost");
1288
1289 return count;
1290 }
1291
1292 static ssize_t nv_dynamic_boost_show(struct device *dev,
1293 struct device_attribute *attr,
1294 char *buf)
1295 {
1296 struct asus_wmi *asus = dev_get_drvdata(dev);
1297
1298 return sysfs_emit(buf, "%u\n", asus->nv_dynamic_boost);
1299 }
1300 static DEVICE_ATTR_RW(nv_dynamic_boost);
1301
1302 /* Tunable: NVIDIA temperature target ****************************************/
1303 static ssize_t nv_temp_target_store(struct device *dev,
1304 struct device_attribute *attr,
1305 const char *buf, size_t count)
1306 {
1307 struct asus_wmi *asus = dev_get_drvdata(dev);
1308 int result, err;
1309 u32 value;
1310
1311 result = kstrtou32(buf, 10, &value);
1312 if (result)
1313 return result;
1314
1315 if (value < NVIDIA_TEMP_MIN || value > NVIDIA_TEMP_MAX)
1316 return -EINVAL;
1317
1318 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_NV_THERM_TARGET, value, &result);
1319 if (err) {
1320 pr_warn("Failed to set nv_temp_target: %d\n", err);
1321 return err;
1322 }
1323
1324 if (result > 1) {
1325 pr_warn("Failed to set nv_temp_target (result): 0x%x\n", result);
1326 return -EIO;
1327 }
1328
1329 asus->nv_temp_target = value;
1330 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "nv_temp_target");
1331
1332 return count;
1333 }
1334
1335 static ssize_t nv_temp_target_show(struct device *dev,
1336 struct device_attribute *attr,
1337 char *buf)
1338 {
1339 struct asus_wmi *asus = dev_get_drvdata(dev);
1340
1341 return sysfs_emit(buf, "%u\n", asus->nv_temp_target);
1342 }
1343 static DEVICE_ATTR_RW(nv_temp_target);
1344
1345 /* Ally MCU Powersave ********************************************************/
1346 static ssize_t mcu_powersave_show(struct device *dev,
1347 struct device_attribute *attr, char *buf)
1348 {
1349 struct asus_wmi *asus = dev_get_drvdata(dev);
1350 int result;
1351
1352 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_MCU_POWERSAVE);
1353 if (result < 0)
1354 return result;
1355
1356 return sysfs_emit(buf, "%d\n", result);
1357 }
1358
1359 static ssize_t mcu_powersave_store(struct device *dev,
1360 struct device_attribute *attr,
1361 const char *buf, size_t count)
1362 {
1363 int result, err;
1364 u32 enable;
1365
1366 struct asus_wmi *asus = dev_get_drvdata(dev);
1367
1368 result = kstrtou32(buf, 10, &enable);
1369 if (result)
1370 return result;
1371
1372 if (enable > 1)
1373 return -EINVAL;
1374
1375 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MCU_POWERSAVE, enable, &result);
1376 if (err) {
1377 pr_warn("Failed to set MCU powersave: %d\n", err);
1378 return err;
1379 }
1380
1381 if (result > 1) {
1382 pr_warn("Failed to set MCU powersave (result): 0x%x\n", result);
1383 return -EIO;
1384 }
1385
1386 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "mcu_powersave");
1387
1388 return count;
1389 }
1390 static DEVICE_ATTR_RW(mcu_powersave);
1391
1392 /* Battery ********************************************************************/
1393
1394 /* The battery maximum charging percentage */
1395 static int charge_end_threshold;
1396
1397 static ssize_t charge_control_end_threshold_store(struct device *dev,
1398 struct device_attribute *attr,
1399 const char *buf, size_t count)
1400 {
1401 int value, ret, rv;
1402
1403 ret = kstrtouint(buf, 10, &value);
1404 if (ret)
1405 return ret;
1406
1407 if (value < 0 || value > 100)
1408 return -EINVAL;
1409
1410 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_RSOC, value, &rv);
1411 if (ret)
1412 return ret;
1413
1414 if (rv != 1)
1415 return -EIO;
1416
1417 /* There isn't any method in the DSDT to read the threshold, so we
1418 * save the threshold.
1419 */
1420 charge_end_threshold = value;
1421 return count;
1422 }
1423
1424 static ssize_t charge_control_end_threshold_show(struct device *device,
1425 struct device_attribute *attr,
1426 char *buf)
1427 {
1428 return sysfs_emit(buf, "%d\n", charge_end_threshold);
1429 }
1430
1431 static DEVICE_ATTR_RW(charge_control_end_threshold);
1432
1433 static int asus_wmi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
1434 {
1435 /* The WMI method does not provide a way to specific a battery, so we
1436 * just assume it is the first battery.
1437 * Note: On some newer ASUS laptops (Zenbook UM431DA), the primary/first
1438 * battery is named BATT.
1439 */
1440 if (strcmp(battery->desc->name, "BAT0") != 0 &&
1441 strcmp(battery->desc->name, "BAT1") != 0 &&
1442 strcmp(battery->desc->name, "BATC") != 0 &&
1443 strcmp(battery->desc->name, "BATT") != 0)
1444 return -ENODEV;
1445
1446 if (device_create_file(&battery->dev,
1447 &dev_attr_charge_control_end_threshold))
1448 return -ENODEV;
1449
1450 /* The charge threshold is only reset when the system is power cycled,
1451 * and we can't get the current threshold so let set it to 100% when
1452 * a battery is added.
1453 */
1454 asus_wmi_set_devstate(ASUS_WMI_DEVID_RSOC, 100, NULL);
1455 charge_end_threshold = 100;
1456
1457 return 0;
1458 }
1459
1460 static int asus_wmi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
1461 {
1462 device_remove_file(&battery->dev,
1463 &dev_attr_charge_control_end_threshold);
1464 return 0;
1465 }
1466
1467 static struct acpi_battery_hook battery_hook = {
1468 .add_battery = asus_wmi_battery_add,
1469 .remove_battery = asus_wmi_battery_remove,
1470 .name = "ASUS Battery Extension",
1471 };
1472
1473 static void asus_wmi_battery_init(struct asus_wmi *asus)
1474 {
1475 asus->battery_rsoc_available = false;
1476 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_RSOC)) {
1477 asus->battery_rsoc_available = true;
1478 battery_hook_register(&battery_hook);
1479 }
1480 }
1481
1482 static void asus_wmi_battery_exit(struct asus_wmi *asus)
1483 {
1484 if (asus->battery_rsoc_available)
1485 battery_hook_unregister(&battery_hook);
1486 }
1487
1488 /* LEDs ***********************************************************************/
1489
1490 /*
1491 * These functions actually update the LED's, and are called from a
1492 * workqueue. By doing this as separate work rather than when the LED
1493 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
1494 * potentially bad time, such as a timer interrupt.
1495 */
1496 static void tpd_led_update(struct work_struct *work)
1497 {
1498 int ctrl_param;
1499 struct asus_wmi *asus;
1500
1501 asus = container_of(work, struct asus_wmi, tpd_led_work);
1502
1503 ctrl_param = asus->tpd_led_wk;
1504 asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
1505 }
1506
1507 static void tpd_led_set(struct led_classdev *led_cdev,
1508 enum led_brightness value)
1509 {
1510 struct asus_wmi *asus;
1511
1512 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
1513
1514 asus->tpd_led_wk = !!value;
1515 queue_work(asus->led_workqueue, &asus->tpd_led_work);
1516 }
1517
1518 static int read_tpd_led_state(struct asus_wmi *asus)
1519 {
1520 return asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_TOUCHPAD_LED);
1521 }
1522
1523 static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
1524 {
1525 struct asus_wmi *asus;
1526
1527 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
1528
1529 return read_tpd_led_state(asus);
1530 }
1531
1532 static void kbd_led_update(struct asus_wmi *asus)
1533 {
1534 int ctrl_param = 0;
1535
1536 ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F);
1537 asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL);
1538 }
1539
1540 static int kbd_led_read(struct asus_wmi *asus, int *level, int *env)
1541 {
1542 int retval;
1543
1544 /*
1545 * bits 0-2: level
1546 * bit 7: light on/off
1547 * bit 8-10: environment (0: dark, 1: normal, 2: light)
1548 * bit 17: status unknown
1549 */
1550 retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT,
1551 0xFFFF);
1552
1553 /* Unknown status is considered as off */
1554 if (retval == 0x8000)
1555 retval = 0;
1556
1557 if (retval < 0)
1558 return retval;
1559
1560 if (level)
1561 *level = retval & 0x7F;
1562 if (env)
1563 *env = (retval >> 8) & 0x7F;
1564 return 0;
1565 }
1566
1567 static void do_kbd_led_set(struct led_classdev *led_cdev, int value)
1568 {
1569 struct asus_wmi *asus;
1570 int max_level;
1571
1572 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
1573 max_level = asus->kbd_led.max_brightness;
1574
1575 asus->kbd_led_wk = clamp_val(value, 0, max_level);
1576 kbd_led_update(asus);
1577 }
1578
1579 static void kbd_led_set(struct led_classdev *led_cdev,
1580 enum led_brightness value)
1581 {
1582 /* Prevent disabling keyboard backlight on module unregister */
1583 if (led_cdev->flags & LED_UNREGISTERING)
1584 return;
1585
1586 do_kbd_led_set(led_cdev, value);
1587 }
1588
1589 static void kbd_led_set_by_kbd(struct asus_wmi *asus, enum led_brightness value)
1590 {
1591 struct led_classdev *led_cdev = &asus->kbd_led;
1592
1593 do_kbd_led_set(led_cdev, value);
1594 led_classdev_notify_brightness_hw_changed(led_cdev, asus->kbd_led_wk);
1595 }
1596
1597 static enum led_brightness kbd_led_get(struct led_classdev *led_cdev)
1598 {
1599 struct asus_wmi *asus;
1600 int retval, value;
1601
1602 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
1603
1604 retval = kbd_led_read(asus, &value, NULL);
1605 if (retval < 0)
1606 return retval;
1607
1608 return value;
1609 }
1610
1611 static int wlan_led_unknown_state(struct asus_wmi *asus)
1612 {
1613 u32 result;
1614
1615 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
1616
1617 return result & ASUS_WMI_DSTS_UNKNOWN_BIT;
1618 }
1619
1620 static void wlan_led_update(struct work_struct *work)
1621 {
1622 int ctrl_param;
1623 struct asus_wmi *asus;
1624
1625 asus = container_of(work, struct asus_wmi, wlan_led_work);
1626
1627 ctrl_param = asus->wlan_led_wk;
1628 asus_wmi_set_devstate(ASUS_WMI_DEVID_WIRELESS_LED, ctrl_param, NULL);
1629 }
1630
1631 static void wlan_led_set(struct led_classdev *led_cdev,
1632 enum led_brightness value)
1633 {
1634 struct asus_wmi *asus;
1635
1636 asus = container_of(led_cdev, struct asus_wmi, wlan_led);
1637
1638 asus->wlan_led_wk = !!value;
1639 queue_work(asus->led_workqueue, &asus->wlan_led_work);
1640 }
1641
1642 static enum led_brightness wlan_led_get(struct led_classdev *led_cdev)
1643 {
1644 struct asus_wmi *asus;
1645 u32 result;
1646
1647 asus = container_of(led_cdev, struct asus_wmi, wlan_led);
1648 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
1649
1650 return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
1651 }
1652
1653 static void lightbar_led_update(struct work_struct *work)
1654 {
1655 struct asus_wmi *asus;
1656 int ctrl_param;
1657
1658 asus = container_of(work, struct asus_wmi, lightbar_led_work);
1659
1660 ctrl_param = asus->lightbar_led_wk;
1661 asus_wmi_set_devstate(ASUS_WMI_DEVID_LIGHTBAR, ctrl_param, NULL);
1662 }
1663
1664 static void lightbar_led_set(struct led_classdev *led_cdev,
1665 enum led_brightness value)
1666 {
1667 struct asus_wmi *asus;
1668
1669 asus = container_of(led_cdev, struct asus_wmi, lightbar_led);
1670
1671 asus->lightbar_led_wk = !!value;
1672 queue_work(asus->led_workqueue, &asus->lightbar_led_work);
1673 }
1674
1675 static enum led_brightness lightbar_led_get(struct led_classdev *led_cdev)
1676 {
1677 struct asus_wmi *asus;
1678 u32 result;
1679
1680 asus = container_of(led_cdev, struct asus_wmi, lightbar_led);
1681 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_LIGHTBAR, &result);
1682
1683 return result & ASUS_WMI_DSTS_LIGHTBAR_MASK;
1684 }
1685
1686 static int micmute_led_set(struct led_classdev *led_cdev,
1687 enum led_brightness brightness)
1688 {
1689 int state = brightness != LED_OFF;
1690 int err;
1691
1692 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MICMUTE_LED, state, NULL);
1693 return err < 0 ? err : 0;
1694 }
1695
1696 static enum led_brightness camera_led_get(struct led_classdev *led_cdev)
1697 {
1698 struct asus_wmi *asus;
1699 u32 result;
1700
1701 asus = container_of(led_cdev, struct asus_wmi, camera_led);
1702 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CAMERA_LED, &result);
1703
1704 return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
1705 }
1706
1707 static int camera_led_set(struct led_classdev *led_cdev,
1708 enum led_brightness brightness)
1709 {
1710 int state = brightness != LED_OFF;
1711 int err;
1712
1713 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_CAMERA_LED, state, NULL);
1714 return err < 0 ? err : 0;
1715 }
1716
1717 static void asus_wmi_led_exit(struct asus_wmi *asus)
1718 {
1719 led_classdev_unregister(&asus->kbd_led);
1720 led_classdev_unregister(&asus->tpd_led);
1721 led_classdev_unregister(&asus->wlan_led);
1722 led_classdev_unregister(&asus->lightbar_led);
1723 led_classdev_unregister(&asus->micmute_led);
1724 led_classdev_unregister(&asus->camera_led);
1725
1726 if (asus->led_workqueue)
1727 destroy_workqueue(asus->led_workqueue);
1728 }
1729
1730 static int asus_wmi_led_init(struct asus_wmi *asus)
1731 {
1732 int rv = 0, num_rgb_groups = 0, led_val;
1733
1734 if (asus->kbd_rgb_dev)
1735 kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_mode_group;
1736 if (asus->kbd_rgb_state_available)
1737 kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_state_group;
1738
1739 asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
1740 if (!asus->led_workqueue)
1741 return -ENOMEM;
1742
1743 if (read_tpd_led_state(asus) >= 0) {
1744 INIT_WORK(&asus->tpd_led_work, tpd_led_update);
1745
1746 asus->tpd_led.name = "asus::touchpad";
1747 asus->tpd_led.brightness_set = tpd_led_set;
1748 asus->tpd_led.brightness_get = tpd_led_get;
1749 asus->tpd_led.max_brightness = 1;
1750
1751 rv = led_classdev_register(&asus->platform_device->dev,
1752 &asus->tpd_led);
1753 if (rv)
1754 goto error;
1755 }
1756
1757 if (!kbd_led_read(asus, &led_val, NULL) && !dmi_check_system(asus_use_hid_led_dmi_ids)) {
1758 pr_info("using asus-wmi for asus::kbd_backlight\n");
1759 asus->kbd_led_wk = led_val;
1760 asus->kbd_led.name = "asus::kbd_backlight";
1761 asus->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
1762 asus->kbd_led.brightness_set = kbd_led_set;
1763 asus->kbd_led.brightness_get = kbd_led_get;
1764 asus->kbd_led.max_brightness = 3;
1765
1766 if (num_rgb_groups != 0)
1767 asus->kbd_led.groups = kbd_rgb_mode_groups;
1768
1769 rv = led_classdev_register(&asus->platform_device->dev,
1770 &asus->kbd_led);
1771 if (rv)
1772 goto error;
1773 }
1774
1775 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_WIRELESS_LED)
1776 && (asus->driver->quirks->wapf > 0)) {
1777 INIT_WORK(&asus->wlan_led_work, wlan_led_update);
1778
1779 asus->wlan_led.name = "asus::wlan";
1780 asus->wlan_led.brightness_set = wlan_led_set;
1781 if (!wlan_led_unknown_state(asus))
1782 asus->wlan_led.brightness_get = wlan_led_get;
1783 asus->wlan_led.flags = LED_CORE_SUSPENDRESUME;
1784 asus->wlan_led.max_brightness = 1;
1785 asus->wlan_led.default_trigger = "asus-wlan";
1786
1787 rv = led_classdev_register(&asus->platform_device->dev,
1788 &asus->wlan_led);
1789 if (rv)
1790 goto error;
1791 }
1792
1793 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_LIGHTBAR)) {
1794 INIT_WORK(&asus->lightbar_led_work, lightbar_led_update);
1795
1796 asus->lightbar_led.name = "asus::lightbar";
1797 asus->lightbar_led.brightness_set = lightbar_led_set;
1798 asus->lightbar_led.brightness_get = lightbar_led_get;
1799 asus->lightbar_led.max_brightness = 1;
1800
1801 rv = led_classdev_register(&asus->platform_device->dev,
1802 &asus->lightbar_led);
1803 }
1804
1805 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MICMUTE_LED)) {
1806 asus->micmute_led.name = "platform::micmute";
1807 asus->micmute_led.max_brightness = 1;
1808 asus->micmute_led.brightness_set_blocking = micmute_led_set;
1809 asus->micmute_led.default_trigger = "audio-micmute";
1810
1811 rv = led_classdev_register(&asus->platform_device->dev,
1812 &asus->micmute_led);
1813 if (rv)
1814 goto error;
1815 }
1816
1817 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CAMERA_LED)) {
1818 asus->camera_led.name = "asus::camera";
1819 asus->camera_led.max_brightness = 1;
1820 asus->camera_led.brightness_get = camera_led_get;
1821 asus->camera_led.brightness_set_blocking = camera_led_set;
1822
1823 rv = led_classdev_register(&asus->platform_device->dev,
1824 &asus->camera_led);
1825 if (rv)
1826 goto error;
1827 }
1828
1829 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_OOBE)) {
1830 /*
1831 * Disable OOBE state, so that e.g. the keyboard backlight
1832 * works.
1833 */
1834 rv = asus_wmi_set_devstate(ASUS_WMI_DEVID_OOBE, 1, NULL);
1835 if (rv)
1836 goto error;
1837 }
1838
1839 error:
1840 if (rv)
1841 asus_wmi_led_exit(asus);
1842
1843 return rv;
1844 }
1845
1846 /* RF *************************************************************************/
1847
1848 /*
1849 * PCI hotplug (for wlan rfkill)
1850 */
1851 static bool asus_wlan_rfkill_blocked(struct asus_wmi *asus)
1852 {
1853 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
1854
1855 if (result < 0)
1856 return false;
1857 return !result;
1858 }
1859
1860 static void asus_rfkill_hotplug(struct asus_wmi *asus)
1861 {
1862 struct pci_dev *dev;
1863 struct pci_bus *bus;
1864 bool blocked;
1865 bool absent;
1866 u32 l;
1867
1868 mutex_lock(&asus->wmi_lock);
1869 blocked = asus_wlan_rfkill_blocked(asus);
1870 mutex_unlock(&asus->wmi_lock);
1871
1872 mutex_lock(&asus->hotplug_lock);
1873 pci_lock_rescan_remove();
1874
1875 if (asus->wlan.rfkill)
1876 rfkill_set_sw_state(asus->wlan.rfkill, blocked);
1877
1878 if (asus->hotplug_slot.ops) {
1879 bus = pci_find_bus(0, 1);
1880 if (!bus) {
1881 pr_warn("Unable to find PCI bus 1?\n");
1882 goto out_unlock;
1883 }
1884
1885 if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
1886 pr_err("Unable to read PCI config space?\n");
1887 goto out_unlock;
1888 }
1889 absent = (l == 0xffffffff);
1890
1891 if (blocked != absent) {
1892 pr_warn("BIOS says wireless lan is %s, but the pci device is %s\n",
1893 blocked ? "blocked" : "unblocked",
1894 absent ? "absent" : "present");
1895 pr_warn("skipped wireless hotplug as probably inappropriate for this model\n");
1896 goto out_unlock;
1897 }
1898
1899 if (!blocked) {
1900 dev = pci_get_slot(bus, 0);
1901 if (dev) {
1902 /* Device already present */
1903 pci_dev_put(dev);
1904 goto out_unlock;
1905 }
1906 dev = pci_scan_single_device(bus, 0);
1907 if (dev) {
1908 pci_bus_assign_resources(bus);
1909 pci_bus_add_device(dev);
1910 }
1911 } else {
1912 dev = pci_get_slot(bus, 0);
1913 if (dev) {
1914 pci_stop_and_remove_bus_device(dev);
1915 pci_dev_put(dev);
1916 }
1917 }
1918 }
1919
1920 out_unlock:
1921 pci_unlock_rescan_remove();
1922 mutex_unlock(&asus->hotplug_lock);
1923 }
1924
1925 static void asus_rfkill_notify(acpi_handle handle, u32 event, void *data)
1926 {
1927 struct asus_wmi *asus = data;
1928
1929 if (event != ACPI_NOTIFY_BUS_CHECK)
1930 return;
1931
1932 /*
1933 * We can't call directly asus_rfkill_hotplug because most
1934 * of the time WMBC is still being executed and not reetrant.
1935 * There is currently no way to tell ACPICA that we want this
1936 * method to be serialized, we schedule a asus_rfkill_hotplug
1937 * call later, in a safer context.
1938 */
1939 queue_work(asus->hotplug_workqueue, &asus->hotplug_work);
1940 }
1941
1942 static int asus_register_rfkill_notifier(struct asus_wmi *asus, char *node)
1943 {
1944 acpi_status status;
1945 acpi_handle handle;
1946
1947 status = acpi_get_handle(NULL, node, &handle);
1948 if (ACPI_FAILURE(status))
1949 return -ENODEV;
1950
1951 status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
1952 asus_rfkill_notify, asus);
1953 if (ACPI_FAILURE(status))
1954 pr_warn("Failed to register notify on %s\n", node);
1955
1956 return 0;
1957 }
1958
1959 static void asus_unregister_rfkill_notifier(struct asus_wmi *asus, char *node)
1960 {
1961 acpi_status status = AE_OK;
1962 acpi_handle handle;
1963
1964 status = acpi_get_handle(NULL, node, &handle);
1965 if (ACPI_FAILURE(status))
1966 return;
1967
1968 status = acpi_remove_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
1969 asus_rfkill_notify);
1970 if (ACPI_FAILURE(status))
1971 pr_err("Error removing rfkill notify handler %s\n", node);
1972 }
1973
1974 static int asus_get_adapter_status(struct hotplug_slot *hotplug_slot,
1975 u8 *value)
1976 {
1977 struct asus_wmi *asus = container_of(hotplug_slot,
1978 struct asus_wmi, hotplug_slot);
1979 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
1980
1981 if (result < 0)
1982 return result;
1983
1984 *value = !!result;
1985 return 0;
1986 }
1987
1988 static const struct hotplug_slot_ops asus_hotplug_slot_ops = {
1989 .get_adapter_status = asus_get_adapter_status,
1990 .get_power_status = asus_get_adapter_status,
1991 };
1992
1993 static void asus_hotplug_work(struct work_struct *work)
1994 {
1995 struct asus_wmi *asus;
1996
1997 asus = container_of(work, struct asus_wmi, hotplug_work);
1998 asus_rfkill_hotplug(asus);
1999 }
2000
2001 static int asus_setup_pci_hotplug(struct asus_wmi *asus)
2002 {
2003 int ret = -ENOMEM;
2004 struct pci_bus *bus = pci_find_bus(0, 1);
2005
2006 if (!bus) {
2007 pr_err("Unable to find wifi PCI bus\n");
2008 return -ENODEV;
2009 }
2010
2011 asus->hotplug_workqueue =
2012 create_singlethread_workqueue("hotplug_workqueue");
2013 if (!asus->hotplug_workqueue)
2014 goto error_workqueue;
2015
2016 INIT_WORK(&asus->hotplug_work, asus_hotplug_work);
2017
2018 asus->hotplug_slot.ops = &asus_hotplug_slot_ops;
2019
2020 ret = pci_hp_register(&asus->hotplug_slot, bus, 0, "asus-wifi");
2021 if (ret) {
2022 pr_err("Unable to register hotplug slot - %d\n", ret);
2023 goto error_register;
2024 }
2025
2026 return 0;
2027
2028 error_register:
2029 asus->hotplug_slot.ops = NULL;
2030 destroy_workqueue(asus->hotplug_workqueue);
2031 error_workqueue:
2032 return ret;
2033 }
2034
2035 /*
2036 * Rfkill devices
2037 */
2038 static int asus_rfkill_set(void *data, bool blocked)
2039 {
2040 struct asus_rfkill *priv = data;
2041 u32 ctrl_param = !blocked;
2042 u32 dev_id = priv->dev_id;
2043
2044 /*
2045 * If the user bit is set, BIOS can't set and record the wlan status,
2046 * it will report the value read from id ASUS_WMI_DEVID_WLAN_LED
2047 * while we query the wlan status through WMI(ASUS_WMI_DEVID_WLAN).
2048 * So, we have to record wlan status in id ASUS_WMI_DEVID_WLAN_LED
2049 * while setting the wlan status through WMI.
2050 * This is also the behavior that windows app will do.
2051 */
2052 if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
2053 priv->asus->driver->wlan_ctrl_by_user)
2054 dev_id = ASUS_WMI_DEVID_WLAN_LED;
2055
2056 return asus_wmi_set_devstate(dev_id, ctrl_param, NULL);
2057 }
2058
2059 static void asus_rfkill_query(struct rfkill *rfkill, void *data)
2060 {
2061 struct asus_rfkill *priv = data;
2062 int result;
2063
2064 result = asus_wmi_get_devstate_simple(priv->asus, priv->dev_id);
2065
2066 if (result < 0)
2067 return;
2068
2069 rfkill_set_sw_state(priv->rfkill, !result);
2070 }
2071
2072 static int asus_rfkill_wlan_set(void *data, bool blocked)
2073 {
2074 struct asus_rfkill *priv = data;
2075 struct asus_wmi *asus = priv->asus;
2076 int ret;
2077
2078 /*
2079 * This handler is enabled only if hotplug is enabled.
2080 * In this case, the asus_wmi_set_devstate() will
2081 * trigger a wmi notification and we need to wait
2082 * this call to finish before being able to call
2083 * any wmi method
2084 */
2085 mutex_lock(&asus->wmi_lock);
2086 ret = asus_rfkill_set(data, blocked);
2087 mutex_unlock(&asus->wmi_lock);
2088 return ret;
2089 }
2090
2091 static const struct rfkill_ops asus_rfkill_wlan_ops = {
2092 .set_block = asus_rfkill_wlan_set,
2093 .query = asus_rfkill_query,
2094 };
2095
2096 static const struct rfkill_ops asus_rfkill_ops = {
2097 .set_block = asus_rfkill_set,
2098 .query = asus_rfkill_query,
2099 };
2100
2101 static int asus_new_rfkill(struct asus_wmi *asus,
2102 struct asus_rfkill *arfkill,
2103 const char *name, enum rfkill_type type, int dev_id)
2104 {
2105 int result = asus_wmi_get_devstate_simple(asus, dev_id);
2106 struct rfkill **rfkill = &arfkill->rfkill;
2107
2108 if (result < 0)
2109 return result;
2110
2111 arfkill->dev_id = dev_id;
2112 arfkill->asus = asus;
2113
2114 if (dev_id == ASUS_WMI_DEVID_WLAN &&
2115 asus->driver->quirks->hotplug_wireless)
2116 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
2117 &asus_rfkill_wlan_ops, arfkill);
2118 else
2119 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
2120 &asus_rfkill_ops, arfkill);
2121
2122 if (!*rfkill)
2123 return -EINVAL;
2124
2125 if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
2126 (asus->driver->quirks->wapf > 0))
2127 rfkill_set_led_trigger_name(*rfkill, "asus-wlan");
2128
2129 rfkill_init_sw_state(*rfkill, !result);
2130 result = rfkill_register(*rfkill);
2131 if (result) {
2132 rfkill_destroy(*rfkill);
2133 *rfkill = NULL;
2134 return result;
2135 }
2136 return 0;
2137 }
2138
2139 static void asus_wmi_rfkill_exit(struct asus_wmi *asus)
2140 {
2141 if (asus->driver->wlan_ctrl_by_user && ashs_present())
2142 return;
2143
2144 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
2145 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
2146 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
2147 if (asus->wlan.rfkill) {
2148 rfkill_unregister(asus->wlan.rfkill);
2149 rfkill_destroy(asus->wlan.rfkill);
2150 asus->wlan.rfkill = NULL;
2151 }
2152 /*
2153 * Refresh pci hotplug in case the rfkill state was changed after
2154 * asus_unregister_rfkill_notifier()
2155 */
2156 asus_rfkill_hotplug(asus);
2157 if (asus->hotplug_slot.ops)
2158 pci_hp_deregister(&asus->hotplug_slot);
2159 if (asus->hotplug_workqueue)
2160 destroy_workqueue(asus->hotplug_workqueue);
2161
2162 if (asus->bluetooth.rfkill) {
2163 rfkill_unregister(asus->bluetooth.rfkill);
2164 rfkill_destroy(asus->bluetooth.rfkill);
2165 asus->bluetooth.rfkill = NULL;
2166 }
2167 if (asus->wimax.rfkill) {
2168 rfkill_unregister(asus->wimax.rfkill);
2169 rfkill_destroy(asus->wimax.rfkill);
2170 asus->wimax.rfkill = NULL;
2171 }
2172 if (asus->wwan3g.rfkill) {
2173 rfkill_unregister(asus->wwan3g.rfkill);
2174 rfkill_destroy(asus->wwan3g.rfkill);
2175 asus->wwan3g.rfkill = NULL;
2176 }
2177 if (asus->gps.rfkill) {
2178 rfkill_unregister(asus->gps.rfkill);
2179 rfkill_destroy(asus->gps.rfkill);
2180 asus->gps.rfkill = NULL;
2181 }
2182 if (asus->uwb.rfkill) {
2183 rfkill_unregister(asus->uwb.rfkill);
2184 rfkill_destroy(asus->uwb.rfkill);
2185 asus->uwb.rfkill = NULL;
2186 }
2187 }
2188
2189 static int asus_wmi_rfkill_init(struct asus_wmi *asus)
2190 {
2191 int result = 0;
2192
2193 mutex_init(&asus->hotplug_lock);
2194 mutex_init(&asus->wmi_lock);
2195
2196 result = asus_new_rfkill(asus, &asus->wlan, "asus-wlan",
2197 RFKILL_TYPE_WLAN, ASUS_WMI_DEVID_WLAN);
2198
2199 if (result && result != -ENODEV)
2200 goto exit;
2201
2202 result = asus_new_rfkill(asus, &asus->bluetooth,
2203 "asus-bluetooth", RFKILL_TYPE_BLUETOOTH,
2204 ASUS_WMI_DEVID_BLUETOOTH);
2205
2206 if (result && result != -ENODEV)
2207 goto exit;
2208
2209 result = asus_new_rfkill(asus, &asus->wimax, "asus-wimax",
2210 RFKILL_TYPE_WIMAX, ASUS_WMI_DEVID_WIMAX);
2211
2212 if (result && result != -ENODEV)
2213 goto exit;
2214
2215 result = asus_new_rfkill(asus, &asus->wwan3g, "asus-wwan3g",
2216 RFKILL_TYPE_WWAN, ASUS_WMI_DEVID_WWAN3G);
2217
2218 if (result && result != -ENODEV)
2219 goto exit;
2220
2221 result = asus_new_rfkill(asus, &asus->gps, "asus-gps",
2222 RFKILL_TYPE_GPS, ASUS_WMI_DEVID_GPS);
2223
2224 if (result && result != -ENODEV)
2225 goto exit;
2226
2227 result = asus_new_rfkill(asus, &asus->uwb, "asus-uwb",
2228 RFKILL_TYPE_UWB, ASUS_WMI_DEVID_UWB);
2229
2230 if (result && result != -ENODEV)
2231 goto exit;
2232
2233 if (!asus->driver->quirks->hotplug_wireless)
2234 goto exit;
2235
2236 result = asus_setup_pci_hotplug(asus);
2237 /*
2238 * If we get -EBUSY then something else is handling the PCI hotplug -
2239 * don't fail in this case
2240 */
2241 if (result == -EBUSY)
2242 result = 0;
2243
2244 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
2245 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
2246 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
2247 /*
2248 * Refresh pci hotplug in case the rfkill state was changed during
2249 * setup.
2250 */
2251 asus_rfkill_hotplug(asus);
2252
2253 exit:
2254 if (result && result != -ENODEV)
2255 asus_wmi_rfkill_exit(asus);
2256
2257 if (result == -ENODEV)
2258 result = 0;
2259
2260 return result;
2261 }
2262
2263 /* Panel Overdrive ************************************************************/
2264 static ssize_t panel_od_show(struct device *dev,
2265 struct device_attribute *attr, char *buf)
2266 {
2267 struct asus_wmi *asus = dev_get_drvdata(dev);
2268 int result;
2269
2270 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_PANEL_OD);
2271 if (result < 0)
2272 return result;
2273
2274 return sysfs_emit(buf, "%d\n", result);
2275 }
2276
2277 static ssize_t panel_od_store(struct device *dev,
2278 struct device_attribute *attr,
2279 const char *buf, size_t count)
2280 {
2281 int result, err;
2282 u32 overdrive;
2283
2284 struct asus_wmi *asus = dev_get_drvdata(dev);
2285
2286 result = kstrtou32(buf, 10, &overdrive);
2287 if (result)
2288 return result;
2289
2290 if (overdrive > 1)
2291 return -EINVAL;
2292
2293 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PANEL_OD, overdrive, &result);
2294
2295 if (err) {
2296 pr_warn("Failed to set panel overdrive: %d\n", err);
2297 return err;
2298 }
2299
2300 if (result > 1) {
2301 pr_warn("Failed to set panel overdrive (result): 0x%x\n", result);
2302 return -EIO;
2303 }
2304
2305 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "panel_od");
2306
2307 return count;
2308 }
2309 static DEVICE_ATTR_RW(panel_od);
2310
2311 /* Bootup sound ***************************************************************/
2312
2313 static ssize_t boot_sound_show(struct device *dev,
2314 struct device_attribute *attr, char *buf)
2315 {
2316 struct asus_wmi *asus = dev_get_drvdata(dev);
2317 int result;
2318
2319 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_BOOT_SOUND);
2320 if (result < 0)
2321 return result;
2322
2323 return sysfs_emit(buf, "%d\n", result);
2324 }
2325
2326 static ssize_t boot_sound_store(struct device *dev,
2327 struct device_attribute *attr,
2328 const char *buf, size_t count)
2329 {
2330 int result, err;
2331 u32 snd;
2332
2333 struct asus_wmi *asus = dev_get_drvdata(dev);
2334
2335 result = kstrtou32(buf, 10, &snd);
2336 if (result)
2337 return result;
2338
2339 if (snd > 1)
2340 return -EINVAL;
2341
2342 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BOOT_SOUND, snd, &result);
2343 if (err) {
2344 pr_warn("Failed to set boot sound: %d\n", err);
2345 return err;
2346 }
2347
2348 if (result > 1) {
2349 pr_warn("Failed to set panel boot sound (result): 0x%x\n", result);
2350 return -EIO;
2351 }
2352
2353 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "boot_sound");
2354
2355 return count;
2356 }
2357 static DEVICE_ATTR_RW(boot_sound);
2358
2359 /* Mini-LED mode **************************************************************/
2360 static ssize_t mini_led_mode_show(struct device *dev,
2361 struct device_attribute *attr, char *buf)
2362 {
2363 struct asus_wmi *asus = dev_get_drvdata(dev);
2364 u32 value;
2365 int err;
2366
2367 err = asus_wmi_get_devstate(asus, asus->mini_led_dev_id, &value);
2368 if (err < 0)
2369 return err;
2370 value = value & ASUS_MINI_LED_MODE_MASK;
2371
2372 /*
2373 * Remap the mode values to match previous generation mini-led. The last gen
2374 * WMI 0 == off, while on this version WMI 2 ==off (flipped).
2375 */
2376 if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) {
2377 switch (value) {
2378 case ASUS_MINI_LED_2024_WEAK:
2379 value = ASUS_MINI_LED_ON;
2380 break;
2381 case ASUS_MINI_LED_2024_STRONG:
2382 value = ASUS_MINI_LED_STRONG_MODE;
2383 break;
2384 case ASUS_MINI_LED_2024_OFF:
2385 value = ASUS_MINI_LED_OFF;
2386 break;
2387 }
2388 }
2389
2390 return sysfs_emit(buf, "%d\n", value);
2391 }
2392
2393 static ssize_t mini_led_mode_store(struct device *dev,
2394 struct device_attribute *attr,
2395 const char *buf, size_t count)
2396 {
2397 int result, err;
2398 u32 mode;
2399
2400 struct asus_wmi *asus = dev_get_drvdata(dev);
2401
2402 result = kstrtou32(buf, 10, &mode);
2403 if (result)
2404 return result;
2405
2406 if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE &&
2407 mode > ASUS_MINI_LED_ON)
2408 return -EINVAL;
2409 if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2 &&
2410 mode > ASUS_MINI_LED_STRONG_MODE)
2411 return -EINVAL;
2412
2413 /*
2414 * Remap the mode values so expected behaviour is the same as the last
2415 * generation of mini-LED with 0 == off, 1 == on.
2416 */
2417 if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) {
2418 switch (mode) {
2419 case ASUS_MINI_LED_OFF:
2420 mode = ASUS_MINI_LED_2024_OFF;
2421 break;
2422 case ASUS_MINI_LED_ON:
2423 mode = ASUS_MINI_LED_2024_WEAK;
2424 break;
2425 case ASUS_MINI_LED_STRONG_MODE:
2426 mode = ASUS_MINI_LED_2024_STRONG;
2427 break;
2428 }
2429 }
2430
2431 err = asus_wmi_set_devstate(asus->mini_led_dev_id, mode, &result);
2432 if (err) {
2433 pr_warn("Failed to set mini-LED: %d\n", err);
2434 return err;
2435 }
2436
2437 if (result > 1) {
2438 pr_warn("Failed to set mini-LED mode (result): 0x%x\n", result);
2439 return -EIO;
2440 }
2441
2442 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "mini_led_mode");
2443
2444 return count;
2445 }
2446 static DEVICE_ATTR_RW(mini_led_mode);
2447
2448 static ssize_t available_mini_led_mode_show(struct device *dev,
2449 struct device_attribute *attr, char *buf)
2450 {
2451 struct asus_wmi *asus = dev_get_drvdata(dev);
2452
2453 switch (asus->mini_led_dev_id) {
2454 case ASUS_WMI_DEVID_MINI_LED_MODE:
2455 return sysfs_emit(buf, "0 1\n");
2456 case ASUS_WMI_DEVID_MINI_LED_MODE2:
2457 return sysfs_emit(buf, "0 1 2\n");
2458 }
2459
2460 return sysfs_emit(buf, "0\n");
2461 }
2462
2463 static DEVICE_ATTR_RO(available_mini_led_mode);
2464
2465 /* Quirks *********************************************************************/
2466
2467 static void asus_wmi_set_xusb2pr(struct asus_wmi *asus)
2468 {
2469 struct pci_dev *xhci_pdev;
2470 u32 orig_ports_available;
2471 u32 ports_available = asus->driver->quirks->xusb2pr;
2472
2473 xhci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
2474 PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI,
2475 NULL);
2476
2477 if (!xhci_pdev)
2478 return;
2479
2480 pci_read_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
2481 &orig_ports_available);
2482
2483 pci_write_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
2484 cpu_to_le32(ports_available));
2485
2486 pci_dev_put(xhci_pdev);
2487
2488 pr_info("set USB_INTEL_XUSB2PR old: 0x%04x, new: 0x%04x\n",
2489 orig_ports_available, ports_available);
2490 }
2491
2492 /*
2493 * Some devices dont support or have borcken get_als method
2494 * but still support set method.
2495 */
2496 static void asus_wmi_set_als(void)
2497 {
2498 asus_wmi_set_devstate(ASUS_WMI_DEVID_ALS_ENABLE, 1, NULL);
2499 }
2500
2501 /* Hwmon device ***************************************************************/
2502
2503 static int asus_agfn_fan_speed_read(struct asus_wmi *asus, int fan,
2504 int *speed)
2505 {
2506 struct agfn_fan_args args = {
2507 .agfn.len = sizeof(args),
2508 .agfn.mfun = ASUS_FAN_MFUN,
2509 .agfn.sfun = ASUS_FAN_SFUN_READ,
2510 .fan = fan,
2511 .speed = 0,
2512 };
2513 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
2514 int status;
2515
2516 if (fan != 1)
2517 return -EINVAL;
2518
2519 status = asus_wmi_evaluate_method_agfn(input);
2520
2521 if (status || args.agfn.err)
2522 return -ENXIO;
2523
2524 if (speed)
2525 *speed = args.speed;
2526
2527 return 0;
2528 }
2529
2530 static int asus_agfn_fan_speed_write(struct asus_wmi *asus, int fan,
2531 int *speed)
2532 {
2533 struct agfn_fan_args args = {
2534 .agfn.len = sizeof(args),
2535 .agfn.mfun = ASUS_FAN_MFUN,
2536 .agfn.sfun = ASUS_FAN_SFUN_WRITE,
2537 .fan = fan,
2538 .speed = speed ? *speed : 0,
2539 };
2540 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
2541 int status;
2542
2543 /* 1: for setting 1st fan's speed 0: setting auto mode */
2544 if (fan != 1 && fan != 0)
2545 return -EINVAL;
2546
2547 status = asus_wmi_evaluate_method_agfn(input);
2548
2549 if (status || args.agfn.err)
2550 return -ENXIO;
2551
2552 if (speed && fan == 1)
2553 asus->agfn_pwm = *speed;
2554
2555 return 0;
2556 }
2557
2558 /*
2559 * Check if we can read the speed of one fan. If true we assume we can also
2560 * control it.
2561 */
2562 static bool asus_wmi_has_agfn_fan(struct asus_wmi *asus)
2563 {
2564 int status;
2565 int speed;
2566 u32 value;
2567
2568 status = asus_agfn_fan_speed_read(asus, 1, &speed);
2569 if (status != 0)
2570 return false;
2571
2572 status = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
2573 if (status != 0)
2574 return false;
2575
2576 /*
2577 * We need to find a better way, probably using sfun,
2578 * bits or spec ...
2579 * Currently we disable it if:
2580 * - ASUS_WMI_UNSUPPORTED_METHOD is returned
2581 * - reverved bits are non-zero
2582 * - sfun and presence bit are not set
2583 */
2584 return !(value == ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000
2585 || (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT)));
2586 }
2587
2588 static int asus_fan_set_auto(struct asus_wmi *asus)
2589 {
2590 int status;
2591 u32 retval;
2592
2593 switch (asus->fan_type) {
2594 case FAN_TYPE_SPEC83:
2595 status = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL,
2596 0, &retval);
2597 if (status)
2598 return status;
2599
2600 if (retval != 1)
2601 return -EIO;
2602 break;
2603
2604 case FAN_TYPE_AGFN:
2605 status = asus_agfn_fan_speed_write(asus, 0, NULL);
2606 if (status)
2607 return -ENXIO;
2608 break;
2609
2610 default:
2611 return -ENXIO;
2612 }
2613
2614 /*
2615 * Modern models like the G713 also have GPU fan control (this is not AGFN)
2616 */
2617 if (asus->gpu_fan_type == FAN_TYPE_SPEC83) {
2618 status = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
2619 0, &retval);
2620 if (status)
2621 return status;
2622
2623 if (retval != 1)
2624 return -EIO;
2625 }
2626
2627 return 0;
2628 }
2629
2630 static ssize_t pwm1_show(struct device *dev,
2631 struct device_attribute *attr,
2632 char *buf)
2633 {
2634 struct asus_wmi *asus = dev_get_drvdata(dev);
2635 int err;
2636 int value;
2637
2638 /* If we already set a value then just return it */
2639 if (asus->agfn_pwm >= 0)
2640 return sysfs_emit(buf, "%d\n", asus->agfn_pwm);
2641
2642 /*
2643 * If we haven't set already set a value through the AGFN interface,
2644 * we read a current value through the (now-deprecated) FAN_CTRL device.
2645 */
2646 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
2647 if (err < 0)
2648 return err;
2649
2650 value &= 0xFF;
2651
2652 if (value == 1) /* Low Speed */
2653 value = 85;
2654 else if (value == 2)
2655 value = 170;
2656 else if (value == 3)
2657 value = 255;
2658 else if (value) {
2659 pr_err("Unknown fan speed %#x\n", value);
2660 value = -1;
2661 }
2662
2663 return sysfs_emit(buf, "%d\n", value);
2664 }
2665
2666 static ssize_t pwm1_store(struct device *dev,
2667 struct device_attribute *attr,
2668 const char *buf, size_t count) {
2669 struct asus_wmi *asus = dev_get_drvdata(dev);
2670 int value;
2671 int state;
2672 int ret;
2673
2674 ret = kstrtouint(buf, 10, &value);
2675 if (ret)
2676 return ret;
2677
2678 value = clamp(value, 0, 255);
2679
2680 state = asus_agfn_fan_speed_write(asus, 1, &value);
2681 if (state)
2682 pr_warn("Setting fan speed failed: %d\n", state);
2683 else
2684 asus->fan_pwm_mode = ASUS_FAN_CTRL_MANUAL;
2685
2686 return count;
2687 }
2688
2689 static ssize_t fan1_input_show(struct device *dev,
2690 struct device_attribute *attr,
2691 char *buf)
2692 {
2693 struct asus_wmi *asus = dev_get_drvdata(dev);
2694 int value;
2695 int ret;
2696
2697 switch (asus->fan_type) {
2698 case FAN_TYPE_SPEC83:
2699 ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL,
2700 &value);
2701 if (ret < 0)
2702 return ret;
2703
2704 value &= 0xffff;
2705 break;
2706
2707 case FAN_TYPE_AGFN:
2708 /* no speed readable on manual mode */
2709 if (asus->fan_pwm_mode == ASUS_FAN_CTRL_MANUAL)
2710 return -ENXIO;
2711
2712 ret = asus_agfn_fan_speed_read(asus, 1, &value);
2713 if (ret) {
2714 pr_warn("reading fan speed failed: %d\n", ret);
2715 return -ENXIO;
2716 }
2717 break;
2718
2719 default:
2720 return -ENXIO;
2721 }
2722
2723 return sysfs_emit(buf, "%d\n", value < 0 ? -1 : value * 100);
2724 }
2725
2726 static ssize_t pwm1_enable_show(struct device *dev,
2727 struct device_attribute *attr,
2728 char *buf)
2729 {
2730 struct asus_wmi *asus = dev_get_drvdata(dev);
2731
2732 /*
2733 * Just read back the cached pwm mode.
2734 *
2735 * For the CPU_FAN device, the spec indicates that we should be
2736 * able to read the device status and consult bit 19 to see if we
2737 * are in Full On or Automatic mode. However, this does not work
2738 * in practice on X532FL at least (the bit is always 0) and there's
2739 * also nothing in the DSDT to indicate that this behaviour exists.
2740 */
2741 return sysfs_emit(buf, "%d\n", asus->fan_pwm_mode);
2742 }
2743
2744 static ssize_t pwm1_enable_store(struct device *dev,
2745 struct device_attribute *attr,
2746 const char *buf, size_t count)
2747 {
2748 struct asus_wmi *asus = dev_get_drvdata(dev);
2749 int status = 0;
2750 int state;
2751 int value;
2752 int ret;
2753 u32 retval;
2754
2755 ret = kstrtouint(buf, 10, &state);
2756 if (ret)
2757 return ret;
2758
2759 if (asus->fan_type == FAN_TYPE_SPEC83) {
2760 switch (state) { /* standard documented hwmon values */
2761 case ASUS_FAN_CTRL_FULLSPEED:
2762 value = 1;
2763 break;
2764 case ASUS_FAN_CTRL_AUTO:
2765 value = 0;
2766 break;
2767 default:
2768 return -EINVAL;
2769 }
2770
2771 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL,
2772 value, &retval);
2773 if (ret)
2774 return ret;
2775
2776 if (retval != 1)
2777 return -EIO;
2778 } else if (asus->fan_type == FAN_TYPE_AGFN) {
2779 switch (state) {
2780 case ASUS_FAN_CTRL_MANUAL:
2781 break;
2782
2783 case ASUS_FAN_CTRL_AUTO:
2784 status = asus_fan_set_auto(asus);
2785 if (status)
2786 return status;
2787 break;
2788
2789 default:
2790 return -EINVAL;
2791 }
2792 }
2793
2794 asus->fan_pwm_mode = state;
2795
2796 /* Must set to disabled if mode is toggled */
2797 if (asus->cpu_fan_curve_available)
2798 asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false;
2799 if (asus->gpu_fan_curve_available)
2800 asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false;
2801 if (asus->mid_fan_curve_available)
2802 asus->custom_fan_curves[FAN_CURVE_DEV_MID].enabled = false;
2803
2804 return count;
2805 }
2806
2807 static ssize_t asus_hwmon_temp1(struct device *dev,
2808 struct device_attribute *attr,
2809 char *buf)
2810 {
2811 struct asus_wmi *asus = dev_get_drvdata(dev);
2812 u32 value;
2813 int err;
2814
2815 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_THERMAL_CTRL, &value);
2816 if (err < 0)
2817 return err;
2818
2819 return sysfs_emit(buf, "%ld\n",
2820 deci_kelvin_to_millicelsius(value & 0xFFFF));
2821 }
2822
2823 /* GPU fan on modern ROG laptops */
2824 static ssize_t fan2_input_show(struct device *dev,
2825 struct device_attribute *attr,
2826 char *buf)
2827 {
2828 struct asus_wmi *asus = dev_get_drvdata(dev);
2829 int value;
2830 int ret;
2831
2832 ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL, &value);
2833 if (ret < 0)
2834 return ret;
2835
2836 value &= 0xffff;
2837
2838 return sysfs_emit(buf, "%d\n", value * 100);
2839 }
2840
2841 /* Middle/Center fan on modern ROG laptops */
2842 static ssize_t fan3_input_show(struct device *dev,
2843 struct device_attribute *attr,
2844 char *buf)
2845 {
2846 struct asus_wmi *asus = dev_get_drvdata(dev);
2847 int value;
2848 int ret;
2849
2850 ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_MID_FAN_CTRL, &value);
2851 if (ret < 0)
2852 return ret;
2853
2854 value &= 0xffff;
2855
2856 return sysfs_emit(buf, "%d\n", value * 100);
2857 }
2858
2859 static ssize_t pwm2_enable_show(struct device *dev,
2860 struct device_attribute *attr,
2861 char *buf)
2862 {
2863 struct asus_wmi *asus = dev_get_drvdata(dev);
2864
2865 return sysfs_emit(buf, "%d\n", asus->gpu_fan_pwm_mode);
2866 }
2867
2868 static ssize_t pwm2_enable_store(struct device *dev,
2869 struct device_attribute *attr,
2870 const char *buf, size_t count)
2871 {
2872 struct asus_wmi *asus = dev_get_drvdata(dev);
2873 int state;
2874 int value;
2875 int ret;
2876 u32 retval;
2877
2878 ret = kstrtouint(buf, 10, &state);
2879 if (ret)
2880 return ret;
2881
2882 switch (state) { /* standard documented hwmon values */
2883 case ASUS_FAN_CTRL_FULLSPEED:
2884 value = 1;
2885 break;
2886 case ASUS_FAN_CTRL_AUTO:
2887 value = 0;
2888 break;
2889 default:
2890 return -EINVAL;
2891 }
2892
2893 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
2894 value, &retval);
2895 if (ret)
2896 return ret;
2897
2898 if (retval != 1)
2899 return -EIO;
2900
2901 asus->gpu_fan_pwm_mode = state;
2902 return count;
2903 }
2904
2905 static ssize_t pwm3_enable_show(struct device *dev,
2906 struct device_attribute *attr,
2907 char *buf)
2908 {
2909 struct asus_wmi *asus = dev_get_drvdata(dev);
2910
2911 return sysfs_emit(buf, "%d\n", asus->mid_fan_pwm_mode);
2912 }
2913
2914 static ssize_t pwm3_enable_store(struct device *dev,
2915 struct device_attribute *attr,
2916 const char *buf, size_t count)
2917 {
2918 struct asus_wmi *asus = dev_get_drvdata(dev);
2919 int state;
2920 int value;
2921 int ret;
2922 u32 retval;
2923
2924 ret = kstrtouint(buf, 10, &state);
2925 if (ret)
2926 return ret;
2927
2928 switch (state) { /* standard documented hwmon values */
2929 case ASUS_FAN_CTRL_FULLSPEED:
2930 value = 1;
2931 break;
2932 case ASUS_FAN_CTRL_AUTO:
2933 value = 0;
2934 break;
2935 default:
2936 return -EINVAL;
2937 }
2938
2939 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_MID_FAN_CTRL,
2940 value, &retval);
2941 if (ret)
2942 return ret;
2943
2944 if (retval != 1)
2945 return -EIO;
2946
2947 asus->mid_fan_pwm_mode = state;
2948 return count;
2949 }
2950
2951 /* Fan1 */
2952 static DEVICE_ATTR_RW(pwm1);
2953 static DEVICE_ATTR_RW(pwm1_enable);
2954 static DEVICE_ATTR_RO(fan1_input);
2955 static DEVICE_STRING_ATTR_RO(fan1_label, 0444, ASUS_FAN_DESC);
2956
2957 /* Fan2 - GPU fan */
2958 static DEVICE_ATTR_RW(pwm2_enable);
2959 static DEVICE_ATTR_RO(fan2_input);
2960 static DEVICE_STRING_ATTR_RO(fan2_label, 0444, ASUS_GPU_FAN_DESC);
2961 /* Fan3 - Middle/center fan */
2962 static DEVICE_ATTR_RW(pwm3_enable);
2963 static DEVICE_ATTR_RO(fan3_input);
2964 static DEVICE_STRING_ATTR_RO(fan3_label, 0444, ASUS_MID_FAN_DESC);
2965
2966 /* Temperature */
2967 static DEVICE_ATTR(temp1_input, S_IRUGO, asus_hwmon_temp1, NULL);
2968
2969 static struct attribute *hwmon_attributes[] = {
2970 &dev_attr_pwm1.attr,
2971 &dev_attr_pwm1_enable.attr,
2972 &dev_attr_pwm2_enable.attr,
2973 &dev_attr_pwm3_enable.attr,
2974 &dev_attr_fan1_input.attr,
2975 &dev_attr_fan1_label.attr.attr,
2976 &dev_attr_fan2_input.attr,
2977 &dev_attr_fan2_label.attr.attr,
2978 &dev_attr_fan3_input.attr,
2979 &dev_attr_fan3_label.attr.attr,
2980
2981 &dev_attr_temp1_input.attr,
2982 NULL
2983 };
2984
2985 static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
2986 struct attribute *attr, int idx)
2987 {
2988 struct device *dev = kobj_to_dev(kobj);
2989 struct asus_wmi *asus = dev_get_drvdata(dev->parent);
2990 u32 value = ASUS_WMI_UNSUPPORTED_METHOD;
2991
2992 if (attr == &dev_attr_pwm1.attr) {
2993 if (asus->fan_type != FAN_TYPE_AGFN)
2994 return 0;
2995 } else if (attr == &dev_attr_fan1_input.attr
2996 || attr == &dev_attr_fan1_label.attr.attr
2997 || attr == &dev_attr_pwm1_enable.attr) {
2998 if (asus->fan_type == FAN_TYPE_NONE)
2999 return 0;
3000 } else if (attr == &dev_attr_fan2_input.attr
3001 || attr == &dev_attr_fan2_label.attr.attr
3002 || attr == &dev_attr_pwm2_enable.attr) {
3003 if (asus->gpu_fan_type == FAN_TYPE_NONE)
3004 return 0;
3005 } else if (attr == &dev_attr_fan3_input.attr
3006 || attr == &dev_attr_fan3_label.attr.attr
3007 || attr == &dev_attr_pwm3_enable.attr) {
3008 if (asus->mid_fan_type == FAN_TYPE_NONE)
3009 return 0;
3010 } else if (attr == &dev_attr_temp1_input.attr) {
3011 int err = asus_wmi_get_devstate(asus,
3012 ASUS_WMI_DEVID_THERMAL_CTRL,
3013 &value);
3014
3015 if (err < 0)
3016 return 0; /* can't return negative here */
3017
3018 /*
3019 * If the temperature value in deci-Kelvin is near the absolute
3020 * zero temperature, something is clearly wrong
3021 */
3022 if (value == 0 || value == 1)
3023 return 0;
3024 }
3025
3026 return attr->mode;
3027 }
3028
3029 static const struct attribute_group hwmon_attribute_group = {
3030 .is_visible = asus_hwmon_sysfs_is_visible,
3031 .attrs = hwmon_attributes
3032 };
3033 __ATTRIBUTE_GROUPS(hwmon_attribute);
3034
3035 static int asus_wmi_hwmon_init(struct asus_wmi *asus)
3036 {
3037 struct device *dev = &asus->platform_device->dev;
3038 struct device *hwmon;
3039
3040 hwmon = devm_hwmon_device_register_with_groups(dev, "asus", asus,
3041 hwmon_attribute_groups);
3042
3043 if (IS_ERR(hwmon)) {
3044 pr_err("Could not register asus hwmon device\n");
3045 return PTR_ERR(hwmon);
3046 }
3047 return 0;
3048 }
3049
3050 static int asus_wmi_fan_init(struct asus_wmi *asus)
3051 {
3052 asus->gpu_fan_type = FAN_TYPE_NONE;
3053 asus->mid_fan_type = FAN_TYPE_NONE;
3054 asus->fan_type = FAN_TYPE_NONE;
3055 asus->agfn_pwm = -1;
3056
3057 if (asus->driver->quirks->wmi_ignore_fan)
3058 asus->fan_type = FAN_TYPE_NONE;
3059 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL))
3060 asus->fan_type = FAN_TYPE_SPEC83;
3061 else if (asus_wmi_has_agfn_fan(asus))
3062 asus->fan_type = FAN_TYPE_AGFN;
3063
3064 /* Modern models like G713 also have GPU fan control */
3065 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL))
3066 asus->gpu_fan_type = FAN_TYPE_SPEC83;
3067
3068 /* Some models also have a center/middle fan */
3069 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MID_FAN_CTRL))
3070 asus->mid_fan_type = FAN_TYPE_SPEC83;
3071
3072 if (asus->fan_type == FAN_TYPE_NONE)
3073 return -ENODEV;
3074
3075 asus_fan_set_auto(asus);
3076 asus->fan_pwm_mode = ASUS_FAN_CTRL_AUTO;
3077 return 0;
3078 }
3079
3080 /* Fan mode *******************************************************************/
3081
3082 static int fan_boost_mode_check_present(struct asus_wmi *asus)
3083 {
3084 u32 result;
3085 int err;
3086
3087 asus->fan_boost_mode_available = false;
3088
3089 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_BOOST_MODE,
3090 &result);
3091 if (err) {
3092 if (err == -ENODEV)
3093 return 0;
3094 else
3095 return err;
3096 }
3097
3098 if ((result & ASUS_WMI_DSTS_PRESENCE_BIT) &&
3099 (result & ASUS_FAN_BOOST_MODES_MASK)) {
3100 asus->fan_boost_mode_available = true;
3101 asus->fan_boost_mode_mask = result & ASUS_FAN_BOOST_MODES_MASK;
3102 }
3103
3104 return 0;
3105 }
3106
3107 static int fan_boost_mode_write(struct asus_wmi *asus)
3108 {
3109 u32 retval;
3110 u8 value;
3111 int err;
3112
3113 value = asus->fan_boost_mode;
3114
3115 pr_info("Set fan boost mode: %u\n", value);
3116 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_FAN_BOOST_MODE, value,
3117 &retval);
3118
3119 sysfs_notify(&asus->platform_device->dev.kobj, NULL,
3120 "fan_boost_mode");
3121
3122 if (err) {
3123 pr_warn("Failed to set fan boost mode: %d\n", err);
3124 return err;
3125 }
3126
3127 if (retval != 1) {
3128 pr_warn("Failed to set fan boost mode (retval): 0x%x\n",
3129 retval);
3130 return -EIO;
3131 }
3132
3133 return 0;
3134 }
3135
3136 static int fan_boost_mode_switch_next(struct asus_wmi *asus)
3137 {
3138 u8 mask = asus->fan_boost_mode_mask;
3139
3140 if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_NORMAL) {
3141 if (mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK)
3142 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_OVERBOOST;
3143 else if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK)
3144 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT;
3145 } else if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) {
3146 if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK)
3147 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT;
3148 else
3149 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL;
3150 } else {
3151 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL;
3152 }
3153
3154 return fan_boost_mode_write(asus);
3155 }
3156
3157 static ssize_t fan_boost_mode_show(struct device *dev,
3158 struct device_attribute *attr, char *buf)
3159 {
3160 struct asus_wmi *asus = dev_get_drvdata(dev);
3161
3162 return sysfs_emit(buf, "%d\n", asus->fan_boost_mode);
3163 }
3164
3165 static ssize_t fan_boost_mode_store(struct device *dev,
3166 struct device_attribute *attr,
3167 const char *buf, size_t count)
3168 {
3169 struct asus_wmi *asus = dev_get_drvdata(dev);
3170 u8 mask = asus->fan_boost_mode_mask;
3171 u8 new_mode;
3172 int result;
3173
3174 result = kstrtou8(buf, 10, &new_mode);
3175 if (result < 0) {
3176 pr_warn("Trying to store invalid value\n");
3177 return result;
3178 }
3179
3180 if (new_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) {
3181 if (!(mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK))
3182 return -EINVAL;
3183 } else if (new_mode == ASUS_FAN_BOOST_MODE_SILENT) {
3184 if (!(mask & ASUS_FAN_BOOST_MODE_SILENT_MASK))
3185 return -EINVAL;
3186 } else if (new_mode != ASUS_FAN_BOOST_MODE_NORMAL) {
3187 return -EINVAL;
3188 }
3189
3190 asus->fan_boost_mode = new_mode;
3191 fan_boost_mode_write(asus);
3192
3193 return count;
3194 }
3195
3196 // Fan boost mode: 0 - normal, 1 - overboost, 2 - silent
3197 static DEVICE_ATTR_RW(fan_boost_mode);
3198
3199 /* Custom fan curves **********************************************************/
3200
3201 static void fan_curve_copy_from_buf(struct fan_curve_data *data, u8 *buf)
3202 {
3203 int i;
3204
3205 for (i = 0; i < FAN_CURVE_POINTS; i++) {
3206 data->temps[i] = buf[i];
3207 }
3208
3209 for (i = 0; i < FAN_CURVE_POINTS; i++) {
3210 data->percents[i] =
3211 255 * buf[i + FAN_CURVE_POINTS] / 100;
3212 }
3213 }
3214
3215 static int fan_curve_get_factory_default(struct asus_wmi *asus, u32 fan_dev)
3216 {
3217 struct fan_curve_data *curves;
3218 u8 buf[FAN_CURVE_BUF_LEN];
3219 int err, fan_idx;
3220 u8 mode = 0;
3221
3222 if (asus->throttle_thermal_policy_dev)
3223 mode = asus->throttle_thermal_policy_mode;
3224 /* DEVID_<C/G>PU_FAN_CURVE is switched for OVERBOOST vs SILENT */
3225 if (mode == 2)
3226 mode = 1;
3227 else if (mode == 1)
3228 mode = 2;
3229
3230 err = asus_wmi_evaluate_method_buf(asus->dsts_id, fan_dev, mode, buf,
3231 FAN_CURVE_BUF_LEN);
3232 if (err) {
3233 pr_warn("%s (0x%08x) failed: %d\n", __func__, fan_dev, err);
3234 return err;
3235 }
3236
3237 fan_idx = FAN_CURVE_DEV_CPU;
3238 if (fan_dev == ASUS_WMI_DEVID_GPU_FAN_CURVE)
3239 fan_idx = FAN_CURVE_DEV_GPU;
3240
3241 if (fan_dev == ASUS_WMI_DEVID_MID_FAN_CURVE)
3242 fan_idx = FAN_CURVE_DEV_MID;
3243
3244 curves = &asus->custom_fan_curves[fan_idx];
3245 curves->device_id = fan_dev;
3246
3247 fan_curve_copy_from_buf(curves, buf);
3248 return 0;
3249 }
3250
3251 /* Check if capability exists, and populate defaults */
3252 static int fan_curve_check_present(struct asus_wmi *asus, bool *available,
3253 u32 fan_dev)
3254 {
3255 int err;
3256
3257 *available = false;
3258
3259 if (asus->fan_type == FAN_TYPE_NONE)
3260 return 0;
3261
3262 err = fan_curve_get_factory_default(asus, fan_dev);
3263 if (err) {
3264 return 0;
3265 }
3266
3267 *available = true;
3268 return 0;
3269 }
3270
3271 /* Determine which fan the attribute is for if SENSOR_ATTR */
3272 static struct fan_curve_data *fan_curve_attr_select(struct asus_wmi *asus,
3273 struct device_attribute *attr)
3274 {
3275 int index = to_sensor_dev_attr(attr)->index;
3276
3277 return &asus->custom_fan_curves[index];
3278 }
3279
3280 /* Determine which fan the attribute is for if SENSOR_ATTR_2 */
3281 static struct fan_curve_data *fan_curve_attr_2_select(struct asus_wmi *asus,
3282 struct device_attribute *attr)
3283 {
3284 int nr = to_sensor_dev_attr_2(attr)->nr;
3285
3286 return &asus->custom_fan_curves[nr & ~FAN_CURVE_PWM_MASK];
3287 }
3288
3289 static ssize_t fan_curve_show(struct device *dev,
3290 struct device_attribute *attr, char *buf)
3291 {
3292 struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr);
3293 struct asus_wmi *asus = dev_get_drvdata(dev);
3294 struct fan_curve_data *data;
3295 int value, pwm, index;
3296
3297 data = fan_curve_attr_2_select(asus, attr);
3298 pwm = dev_attr->nr & FAN_CURVE_PWM_MASK;
3299 index = dev_attr->index;
3300
3301 if (pwm)
3302 value = data->percents[index];
3303 else
3304 value = data->temps[index];
3305
3306 return sysfs_emit(buf, "%d\n", value);
3307 }
3308
3309 /*
3310 * "fan_dev" is the related WMI method such as ASUS_WMI_DEVID_CPU_FAN_CURVE.
3311 */
3312 static int fan_curve_write(struct asus_wmi *asus,
3313 struct fan_curve_data *data)
3314 {
3315 u32 arg1 = 0, arg2 = 0, arg3 = 0, arg4 = 0;
3316 u8 *percents = data->percents;
3317 u8 *temps = data->temps;
3318 int ret, i, shift = 0;
3319
3320 if (!data->enabled)
3321 return 0;
3322
3323 for (i = 0; i < FAN_CURVE_POINTS / 2; i++) {
3324 arg1 += (temps[i]) << shift;
3325 arg2 += (temps[i + 4]) << shift;
3326 /* Scale to percentage for device */
3327 arg3 += (100 * percents[i] / 255) << shift;
3328 arg4 += (100 * percents[i + 4] / 255) << shift;
3329 shift += 8;
3330 }
3331
3332 return asus_wmi_evaluate_method5(ASUS_WMI_METHODID_DEVS,
3333 data->device_id,
3334 arg1, arg2, arg3, arg4, &ret);
3335 }
3336
3337 static ssize_t fan_curve_store(struct device *dev,
3338 struct device_attribute *attr, const char *buf,
3339 size_t count)
3340 {
3341 struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr);
3342 struct asus_wmi *asus = dev_get_drvdata(dev);
3343 struct fan_curve_data *data;
3344 int err, pwm, index;
3345 u8 value;
3346
3347 data = fan_curve_attr_2_select(asus, attr);
3348 pwm = dev_attr->nr & FAN_CURVE_PWM_MASK;
3349 index = dev_attr->index;
3350
3351 err = kstrtou8(buf, 10, &value);
3352 if (err < 0)
3353 return err;
3354
3355 if (pwm)
3356 data->percents[index] = value;
3357 else
3358 data->temps[index] = value;
3359
3360 /*
3361 * Mark as disabled so the user has to explicitly enable to apply a
3362 * changed fan curve. This prevents potential lockups from writing out
3363 * many changes as one-write-per-change.
3364 */
3365 data->enabled = false;
3366
3367 return count;
3368 }
3369
3370 static ssize_t fan_curve_enable_show(struct device *dev,
3371 struct device_attribute *attr, char *buf)
3372 {
3373 struct asus_wmi *asus = dev_get_drvdata(dev);
3374 struct fan_curve_data *data;
3375 int out = 2;
3376
3377 data = fan_curve_attr_select(asus, attr);
3378
3379 if (data->enabled)
3380 out = 1;
3381
3382 return sysfs_emit(buf, "%d\n", out);
3383 }
3384
3385 static ssize_t fan_curve_enable_store(struct device *dev,
3386 struct device_attribute *attr,
3387 const char *buf, size_t count)
3388 {
3389 struct asus_wmi *asus = dev_get_drvdata(dev);
3390 struct fan_curve_data *data;
3391 int value, err;
3392
3393 data = fan_curve_attr_select(asus, attr);
3394
3395 err = kstrtoint(buf, 10, &value);
3396 if (err < 0)
3397 return err;
3398
3399 switch (value) {
3400 case 1:
3401 data->enabled = true;
3402 break;
3403 case 2:
3404 data->enabled = false;
3405 break;
3406 /*
3407 * Auto + reset the fan curve data to defaults. Make it an explicit
3408 * option so that users don't accidentally overwrite a set fan curve.
3409 */
3410 case 3:
3411 err = fan_curve_get_factory_default(asus, data->device_id);
3412 if (err)
3413 return err;
3414 data->enabled = false;
3415 break;
3416 default:
3417 return -EINVAL;
3418 }
3419
3420 if (data->enabled) {
3421 err = fan_curve_write(asus, data);
3422 if (err)
3423 return err;
3424 } else {
3425 /*
3426 * For machines with throttle this is the only way to reset fans
3427 * to default mode of operation (does not erase curve data).
3428 */
3429 if (asus->throttle_thermal_policy_dev) {
3430 err = throttle_thermal_policy_write(asus);
3431 if (err)
3432 return err;
3433 /* Similar is true for laptops with this fan */
3434 } else if (asus->fan_type == FAN_TYPE_SPEC83) {
3435 err = asus_fan_set_auto(asus);
3436 if (err)
3437 return err;
3438 } else {
3439 /* Safeguard against fautly ACPI tables */
3440 err = fan_curve_get_factory_default(asus, data->device_id);
3441 if (err)
3442 return err;
3443 err = fan_curve_write(asus, data);
3444 if (err)
3445 return err;
3446 }
3447 }
3448 return count;
3449 }
3450
3451 /* CPU */
3452 static SENSOR_DEVICE_ATTR_RW(pwm1_enable, fan_curve_enable, FAN_CURVE_DEV_CPU);
3453 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_temp, fan_curve,
3454 FAN_CURVE_DEV_CPU, 0);
3455 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_temp, fan_curve,
3456 FAN_CURVE_DEV_CPU, 1);
3457 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_temp, fan_curve,
3458 FAN_CURVE_DEV_CPU, 2);
3459 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_temp, fan_curve,
3460 FAN_CURVE_DEV_CPU, 3);
3461 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_temp, fan_curve,
3462 FAN_CURVE_DEV_CPU, 4);
3463 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_temp, fan_curve,
3464 FAN_CURVE_DEV_CPU, 5);
3465 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_temp, fan_curve,
3466 FAN_CURVE_DEV_CPU, 6);
3467 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_temp, fan_curve,
3468 FAN_CURVE_DEV_CPU, 7);
3469
3470 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_pwm, fan_curve,
3471 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 0);
3472 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_pwm, fan_curve,
3473 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 1);
3474 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_pwm, fan_curve,
3475 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 2);
3476 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_pwm, fan_curve,
3477 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 3);
3478 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_pwm, fan_curve,
3479 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 4);
3480 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_pwm, fan_curve,
3481 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 5);
3482 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_pwm, fan_curve,
3483 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 6);
3484 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_pwm, fan_curve,
3485 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 7);
3486
3487 /* GPU */
3488 static SENSOR_DEVICE_ATTR_RW(pwm2_enable, fan_curve_enable, FAN_CURVE_DEV_GPU);
3489 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_temp, fan_curve,
3490 FAN_CURVE_DEV_GPU, 0);
3491 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_temp, fan_curve,
3492 FAN_CURVE_DEV_GPU, 1);
3493 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_temp, fan_curve,
3494 FAN_CURVE_DEV_GPU, 2);
3495 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_temp, fan_curve,
3496 FAN_CURVE_DEV_GPU, 3);
3497 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_temp, fan_curve,
3498 FAN_CURVE_DEV_GPU, 4);
3499 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_temp, fan_curve,
3500 FAN_CURVE_DEV_GPU, 5);
3501 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_temp, fan_curve,
3502 FAN_CURVE_DEV_GPU, 6);
3503 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_temp, fan_curve,
3504 FAN_CURVE_DEV_GPU, 7);
3505
3506 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_pwm, fan_curve,
3507 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 0);
3508 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_pwm, fan_curve,
3509 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 1);
3510 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_pwm, fan_curve,
3511 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 2);
3512 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_pwm, fan_curve,
3513 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 3);
3514 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_pwm, fan_curve,
3515 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 4);
3516 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_pwm, fan_curve,
3517 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 5);
3518 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_pwm, fan_curve,
3519 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 6);
3520 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_pwm, fan_curve,
3521 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 7);
3522
3523 /* MID */
3524 static SENSOR_DEVICE_ATTR_RW(pwm3_enable, fan_curve_enable, FAN_CURVE_DEV_MID);
3525 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point1_temp, fan_curve,
3526 FAN_CURVE_DEV_MID, 0);
3527 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point2_temp, fan_curve,
3528 FAN_CURVE_DEV_MID, 1);
3529 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point3_temp, fan_curve,
3530 FAN_CURVE_DEV_MID, 2);
3531 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point4_temp, fan_curve,
3532 FAN_CURVE_DEV_MID, 3);
3533 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point5_temp, fan_curve,
3534 FAN_CURVE_DEV_MID, 4);
3535 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point6_temp, fan_curve,
3536 FAN_CURVE_DEV_MID, 5);
3537 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point7_temp, fan_curve,
3538 FAN_CURVE_DEV_MID, 6);
3539 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point8_temp, fan_curve,
3540 FAN_CURVE_DEV_MID, 7);
3541
3542 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point1_pwm, fan_curve,
3543 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 0);
3544 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point2_pwm, fan_curve,
3545 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 1);
3546 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point3_pwm, fan_curve,
3547 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 2);
3548 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point4_pwm, fan_curve,
3549 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 3);
3550 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point5_pwm, fan_curve,
3551 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 4);
3552 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point6_pwm, fan_curve,
3553 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 5);
3554 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point7_pwm, fan_curve,
3555 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 6);
3556 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point8_pwm, fan_curve,
3557 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 7);
3558
3559 static struct attribute *asus_fan_curve_attr[] = {
3560 /* CPU */
3561 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
3562 &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
3563 &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
3564 &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
3565 &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
3566 &sensor_dev_attr_pwm1_auto_point5_temp.dev_attr.attr,
3567 &sensor_dev_attr_pwm1_auto_point6_temp.dev_attr.attr,
3568 &sensor_dev_attr_pwm1_auto_point7_temp.dev_attr.attr,
3569 &sensor_dev_attr_pwm1_auto_point8_temp.dev_attr.attr,
3570 &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
3571 &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
3572 &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
3573 &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
3574 &sensor_dev_attr_pwm1_auto_point5_pwm.dev_attr.attr,
3575 &sensor_dev_attr_pwm1_auto_point6_pwm.dev_attr.attr,
3576 &sensor_dev_attr_pwm1_auto_point7_pwm.dev_attr.attr,
3577 &sensor_dev_attr_pwm1_auto_point8_pwm.dev_attr.attr,
3578 /* GPU */
3579 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
3580 &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
3581 &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
3582 &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
3583 &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
3584 &sensor_dev_attr_pwm2_auto_point5_temp.dev_attr.attr,
3585 &sensor_dev_attr_pwm2_auto_point6_temp.dev_attr.attr,
3586 &sensor_dev_attr_pwm2_auto_point7_temp.dev_attr.attr,
3587 &sensor_dev_attr_pwm2_auto_point8_temp.dev_attr.attr,
3588 &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
3589 &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
3590 &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
3591 &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,
3592 &sensor_dev_attr_pwm2_auto_point5_pwm.dev_attr.attr,
3593 &sensor_dev_attr_pwm2_auto_point6_pwm.dev_attr.attr,
3594 &sensor_dev_attr_pwm2_auto_point7_pwm.dev_attr.attr,
3595 &sensor_dev_attr_pwm2_auto_point8_pwm.dev_attr.attr,
3596 /* MID */
3597 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
3598 &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
3599 &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
3600 &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
3601 &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr,
3602 &sensor_dev_attr_pwm3_auto_point5_temp.dev_attr.attr,
3603 &sensor_dev_attr_pwm3_auto_point6_temp.dev_attr.attr,
3604 &sensor_dev_attr_pwm3_auto_point7_temp.dev_attr.attr,
3605 &sensor_dev_attr_pwm3_auto_point8_temp.dev_attr.attr,
3606 &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
3607 &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
3608 &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr,
3609 &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr,
3610 &sensor_dev_attr_pwm3_auto_point5_pwm.dev_attr.attr,
3611 &sensor_dev_attr_pwm3_auto_point6_pwm.dev_attr.attr,
3612 &sensor_dev_attr_pwm3_auto_point7_pwm.dev_attr.attr,
3613 &sensor_dev_attr_pwm3_auto_point8_pwm.dev_attr.attr,
3614 NULL
3615 };
3616
3617 static umode_t asus_fan_curve_is_visible(struct kobject *kobj,
3618 struct attribute *attr, int idx)
3619 {
3620 struct device *dev = kobj_to_dev(kobj);
3621 struct asus_wmi *asus = dev_get_drvdata(dev->parent);
3622
3623 /*
3624 * Check the char instead of casting attr as there are two attr types
3625 * involved here (attr1 and attr2)
3626 */
3627 if (asus->cpu_fan_curve_available && attr->name[3] == '1')
3628 return 0644;
3629
3630 if (asus->gpu_fan_curve_available && attr->name[3] == '2')
3631 return 0644;
3632
3633 if (asus->mid_fan_curve_available && attr->name[3] == '3')
3634 return 0644;
3635
3636 return 0;
3637 }
3638
3639 static const struct attribute_group asus_fan_curve_attr_group = {
3640 .is_visible = asus_fan_curve_is_visible,
3641 .attrs = asus_fan_curve_attr,
3642 };
3643 __ATTRIBUTE_GROUPS(asus_fan_curve_attr);
3644
3645 /*
3646 * Must be initialised after throttle_thermal_policy_dev is set as
3647 * we check the status of throttle_thermal_policy_dev during init.
3648 */
3649 static int asus_wmi_custom_fan_curve_init(struct asus_wmi *asus)
3650 {
3651 struct device *dev = &asus->platform_device->dev;
3652 struct device *hwmon;
3653 int err;
3654
3655 err = fan_curve_check_present(asus, &asus->cpu_fan_curve_available,
3656 ASUS_WMI_DEVID_CPU_FAN_CURVE);
3657 if (err) {
3658 pr_debug("%s, checked 0x%08x, failed: %d\n",
3659 __func__, ASUS_WMI_DEVID_CPU_FAN_CURVE, err);
3660 return err;
3661 }
3662
3663 err = fan_curve_check_present(asus, &asus->gpu_fan_curve_available,
3664 ASUS_WMI_DEVID_GPU_FAN_CURVE);
3665 if (err) {
3666 pr_debug("%s, checked 0x%08x, failed: %d\n",
3667 __func__, ASUS_WMI_DEVID_GPU_FAN_CURVE, err);
3668 return err;
3669 }
3670
3671 err = fan_curve_check_present(asus, &asus->mid_fan_curve_available,
3672 ASUS_WMI_DEVID_MID_FAN_CURVE);
3673 if (err) {
3674 pr_debug("%s, checked 0x%08x, failed: %d\n",
3675 __func__, ASUS_WMI_DEVID_MID_FAN_CURVE, err);
3676 return err;
3677 }
3678
3679 if (!asus->cpu_fan_curve_available
3680 && !asus->gpu_fan_curve_available
3681 && !asus->mid_fan_curve_available)
3682 return 0;
3683
3684 hwmon = devm_hwmon_device_register_with_groups(
3685 dev, "asus_custom_fan_curve", asus, asus_fan_curve_attr_groups);
3686
3687 if (IS_ERR(hwmon)) {
3688 dev_err(dev,
3689 "Could not register asus_custom_fan_curve device\n");
3690 return PTR_ERR(hwmon);
3691 }
3692
3693 return 0;
3694 }
3695
3696 /* Throttle thermal policy ****************************************************/
3697 static int throttle_thermal_policy_write(struct asus_wmi *asus)
3698 {
3699 u8 value;
3700 int err;
3701
3702 if (asus->throttle_thermal_policy_dev == ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY_VIVO) {
3703 switch (asus->throttle_thermal_policy_mode) {
3704 case ASUS_THROTTLE_THERMAL_POLICY_DEFAULT:
3705 value = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT_VIVO;
3706 break;
3707 case ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST:
3708 value = ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST_VIVO;
3709 break;
3710 case ASUS_THROTTLE_THERMAL_POLICY_SILENT:
3711 value = ASUS_THROTTLE_THERMAL_POLICY_SILENT_VIVO;
3712 break;
3713 default:
3714 return -EINVAL;
3715 }
3716 } else {
3717 value = asus->throttle_thermal_policy_mode;
3718 }
3719
3720 /* Some machines do not return an error code as a result, so we ignore it */
3721 err = asus_wmi_set_devstate(asus->throttle_thermal_policy_dev, value, NULL);
3722
3723 sysfs_notify(&asus->platform_device->dev.kobj, NULL,
3724 "throttle_thermal_policy");
3725
3726 if (err) {
3727 pr_warn("Failed to set throttle thermal policy: %d\n", err);
3728 return err;
3729 }
3730
3731 /* Must set to disabled if mode is toggled */
3732 if (asus->cpu_fan_curve_available)
3733 asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false;
3734 if (asus->gpu_fan_curve_available)
3735 asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false;
3736 if (asus->mid_fan_curve_available)
3737 asus->custom_fan_curves[FAN_CURVE_DEV_MID].enabled = false;
3738
3739 return 0;
3740 }
3741
3742 static int throttle_thermal_policy_set_default(struct asus_wmi *asus)
3743 {
3744 if (!asus->throttle_thermal_policy_dev)
3745 return 0;
3746
3747 asus->throttle_thermal_policy_mode = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
3748 return throttle_thermal_policy_write(asus);
3749 }
3750
3751 static ssize_t throttle_thermal_policy_show(struct device *dev,
3752 struct device_attribute *attr, char *buf)
3753 {
3754 struct asus_wmi *asus = dev_get_drvdata(dev);
3755 u8 mode = asus->throttle_thermal_policy_mode;
3756
3757 return sysfs_emit(buf, "%d\n", mode);
3758 }
3759
3760 static ssize_t throttle_thermal_policy_store(struct device *dev,
3761 struct device_attribute *attr,
3762 const char *buf, size_t count)
3763 {
3764 struct asus_wmi *asus = dev_get_drvdata(dev);
3765 u8 new_mode;
3766 int result;
3767 int err;
3768
3769 result = kstrtou8(buf, 10, &new_mode);
3770 if (result < 0)
3771 return result;
3772
3773 if (new_mode > PLATFORM_PROFILE_MAX)
3774 return -EINVAL;
3775
3776 asus->throttle_thermal_policy_mode = new_mode;
3777 err = throttle_thermal_policy_write(asus);
3778 if (err)
3779 return err;
3780
3781 /*
3782 * Ensure that platform_profile updates userspace with the change to ensure
3783 * that platform_profile and throttle_thermal_policy_mode are in sync.
3784 */
3785 platform_profile_notify(asus->ppdev);
3786
3787 return count;
3788 }
3789
3790 /*
3791 * Throttle thermal policy: 0 - default, 1 - overboost, 2 - silent
3792 */
3793 static DEVICE_ATTR_RW(throttle_thermal_policy);
3794
3795 /* Platform profile ***********************************************************/
3796 static int asus_wmi_platform_profile_get(struct device *dev,
3797 enum platform_profile_option *profile)
3798 {
3799 struct asus_wmi *asus;
3800 int tp;
3801
3802 asus = dev_get_drvdata(dev);
3803 tp = asus->throttle_thermal_policy_mode;
3804
3805 switch (tp) {
3806 case ASUS_THROTTLE_THERMAL_POLICY_DEFAULT:
3807 *profile = PLATFORM_PROFILE_BALANCED;
3808 break;
3809 case ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST:
3810 *profile = PLATFORM_PROFILE_PERFORMANCE;
3811 break;
3812 case ASUS_THROTTLE_THERMAL_POLICY_SILENT:
3813 *profile = PLATFORM_PROFILE_QUIET;
3814 break;
3815 default:
3816 return -EINVAL;
3817 }
3818
3819 return 0;
3820 }
3821
3822 static int asus_wmi_platform_profile_set(struct device *dev,
3823 enum platform_profile_option profile)
3824 {
3825 struct asus_wmi *asus;
3826 int tp;
3827
3828 asus = dev_get_drvdata(dev);
3829
3830 switch (profile) {
3831 case PLATFORM_PROFILE_PERFORMANCE:
3832 tp = ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST;
3833 break;
3834 case PLATFORM_PROFILE_BALANCED:
3835 tp = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
3836 break;
3837 case PLATFORM_PROFILE_QUIET:
3838 tp = ASUS_THROTTLE_THERMAL_POLICY_SILENT;
3839 break;
3840 default:
3841 return -EOPNOTSUPP;
3842 }
3843
3844 asus->throttle_thermal_policy_mode = tp;
3845 return throttle_thermal_policy_write(asus);
3846 }
3847
3848 static int asus_wmi_platform_profile_probe(void *drvdata, unsigned long *choices)
3849 {
3850 set_bit(PLATFORM_PROFILE_QUIET, choices);
3851 set_bit(PLATFORM_PROFILE_BALANCED, choices);
3852 set_bit(PLATFORM_PROFILE_PERFORMANCE, choices);
3853
3854 return 0;
3855 }
3856
3857 static const struct platform_profile_ops asus_wmi_platform_profile_ops = {
3858 .probe = asus_wmi_platform_profile_probe,
3859 .profile_get = asus_wmi_platform_profile_get,
3860 .profile_set = asus_wmi_platform_profile_set,
3861 };
3862
3863 static int platform_profile_setup(struct asus_wmi *asus)
3864 {
3865 struct device *dev = &asus->platform_device->dev;
3866 int err;
3867
3868 /*
3869 * Not an error if a component platform_profile relies on is unavailable
3870 * so early return, skipping the setup of platform_profile.
3871 */
3872 if (!asus->throttle_thermal_policy_dev)
3873 return 0;
3874
3875 /*
3876 * We need to set the default thermal profile during probe or otherwise
3877 * the system will often remain in silent mode, causing low performance.
3878 */
3879 err = throttle_thermal_policy_set_default(asus);
3880 if (err < 0) {
3881 pr_warn("Failed to set default thermal profile\n");
3882 return err;
3883 }
3884
3885 dev_info(dev, "Using throttle_thermal_policy for platform_profile support\n");
3886
3887 asus->ppdev = devm_platform_profile_register(dev, "asus-wmi", asus,
3888 &asus_wmi_platform_profile_ops);
3889 if (IS_ERR(asus->ppdev)) {
3890 dev_err(dev, "Failed to register a platform_profile class device\n");
3891 return PTR_ERR(asus->ppdev);
3892 }
3893
3894 asus->platform_profile_support = true;
3895 return 0;
3896 }
3897
3898 /* Backlight ******************************************************************/
3899
3900 static int read_backlight_power(struct asus_wmi *asus)
3901 {
3902 int ret;
3903
3904 if (asus->driver->quirks->store_backlight_power)
3905 ret = !asus->driver->panel_power;
3906 else
3907 ret = asus_wmi_get_devstate_simple(asus,
3908 ASUS_WMI_DEVID_BACKLIGHT);
3909
3910 if (ret < 0)
3911 return ret;
3912
3913 return ret ? BACKLIGHT_POWER_ON : BACKLIGHT_POWER_OFF;
3914 }
3915
3916 static int read_brightness_max(struct asus_wmi *asus)
3917 {
3918 u32 retval;
3919 int err;
3920
3921 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
3922 if (err < 0)
3923 return err;
3924
3925 retval = retval & ASUS_WMI_DSTS_MAX_BRIGTH_MASK;
3926 retval >>= 8;
3927
3928 if (!retval)
3929 return -ENODEV;
3930
3931 return retval;
3932 }
3933
3934 static int read_brightness(struct backlight_device *bd)
3935 {
3936 struct asus_wmi *asus = bl_get_data(bd);
3937 u32 retval;
3938 int err;
3939
3940 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
3941 if (err < 0)
3942 return err;
3943
3944 return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
3945 }
3946
3947 static u32 get_scalar_command(struct backlight_device *bd)
3948 {
3949 struct asus_wmi *asus = bl_get_data(bd);
3950 u32 ctrl_param = 0;
3951
3952 if ((asus->driver->brightness < bd->props.brightness) ||
3953 bd->props.brightness == bd->props.max_brightness)
3954 ctrl_param = 0x00008001;
3955 else if ((asus->driver->brightness > bd->props.brightness) ||
3956 bd->props.brightness == 0)
3957 ctrl_param = 0x00008000;
3958
3959 asus->driver->brightness = bd->props.brightness;
3960
3961 return ctrl_param;
3962 }
3963
3964 static int update_bl_status(struct backlight_device *bd)
3965 {
3966 struct asus_wmi *asus = bl_get_data(bd);
3967 u32 ctrl_param;
3968 int power, err = 0;
3969
3970 power = read_backlight_power(asus);
3971 if (power != -ENODEV && bd->props.power != power) {
3972 ctrl_param = !!(bd->props.power == BACKLIGHT_POWER_ON);
3973 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT,
3974 ctrl_param, NULL);
3975 if (asus->driver->quirks->store_backlight_power)
3976 asus->driver->panel_power = bd->props.power;
3977
3978 /* When using scalar brightness, updating the brightness
3979 * will mess with the backlight power */
3980 if (asus->driver->quirks->scalar_panel_brightness)
3981 return err;
3982 }
3983
3984 if (asus->driver->quirks->scalar_panel_brightness)
3985 ctrl_param = get_scalar_command(bd);
3986 else
3987 ctrl_param = bd->props.brightness;
3988
3989 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS,
3990 ctrl_param, NULL);
3991
3992 return err;
3993 }
3994
3995 static const struct backlight_ops asus_wmi_bl_ops = {
3996 .get_brightness = read_brightness,
3997 .update_status = update_bl_status,
3998 };
3999
4000 static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code)
4001 {
4002 struct backlight_device *bd = asus->backlight_device;
4003 int old = bd->props.brightness;
4004 int new = old;
4005
4006 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
4007 new = code - NOTIFY_BRNUP_MIN + 1;
4008 else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
4009 new = code - NOTIFY_BRNDOWN_MIN;
4010
4011 bd->props.brightness = new;
4012 backlight_update_status(bd);
4013 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
4014
4015 return old;
4016 }
4017
4018 static int asus_wmi_backlight_init(struct asus_wmi *asus)
4019 {
4020 struct backlight_device *bd;
4021 struct backlight_properties props;
4022 int max;
4023 int power;
4024
4025 max = read_brightness_max(asus);
4026 if (max < 0)
4027 return max;
4028
4029 power = read_backlight_power(asus);
4030 if (power == -ENODEV)
4031 power = BACKLIGHT_POWER_ON;
4032 else if (power < 0)
4033 return power;
4034
4035 memset(&props, 0, sizeof(struct backlight_properties));
4036 props.type = BACKLIGHT_PLATFORM;
4037 props.max_brightness = max;
4038 bd = backlight_device_register(asus->driver->name,
4039 &asus->platform_device->dev, asus,
4040 &asus_wmi_bl_ops, &props);
4041 if (IS_ERR(bd)) {
4042 pr_err("Could not register backlight device\n");
4043 return PTR_ERR(bd);
4044 }
4045
4046 asus->backlight_device = bd;
4047
4048 if (asus->driver->quirks->store_backlight_power)
4049 asus->driver->panel_power = power;
4050
4051 bd->props.brightness = read_brightness(bd);
4052 bd->props.power = power;
4053 backlight_update_status(bd);
4054
4055 asus->driver->brightness = bd->props.brightness;
4056
4057 return 0;
4058 }
4059
4060 static void asus_wmi_backlight_exit(struct asus_wmi *asus)
4061 {
4062 backlight_device_unregister(asus->backlight_device);
4063
4064 asus->backlight_device = NULL;
4065 }
4066
4067 static int is_display_toggle(int code)
4068 {
4069 /* display toggle keys */
4070 if ((code >= 0x61 && code <= 0x67) ||
4071 (code >= 0x8c && code <= 0x93) ||
4072 (code >= 0xa0 && code <= 0xa7) ||
4073 (code >= 0xd0 && code <= 0xd5))
4074 return 1;
4075
4076 return 0;
4077 }
4078
4079 /* Screenpad backlight *******************************************************/
4080
4081 static int read_screenpad_backlight_power(struct asus_wmi *asus)
4082 {
4083 int ret;
4084
4085 ret = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_SCREENPAD_POWER);
4086 if (ret < 0)
4087 return ret;
4088 /* 1 == powered */
4089 return ret ? BACKLIGHT_POWER_ON : BACKLIGHT_POWER_OFF;
4090 }
4091
4092 static int read_screenpad_brightness(struct backlight_device *bd)
4093 {
4094 struct asus_wmi *asus = bl_get_data(bd);
4095 u32 retval;
4096 int err;
4097
4098 err = read_screenpad_backlight_power(asus);
4099 if (err < 0)
4100 return err;
4101 /* The device brightness can only be read if powered, so return stored */
4102 if (err == BACKLIGHT_POWER_OFF)
4103 return asus->driver->screenpad_brightness - ASUS_SCREENPAD_BRIGHT_MIN;
4104
4105 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_SCREENPAD_LIGHT, &retval);
4106 if (err < 0)
4107 return err;
4108
4109 return (retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK) - ASUS_SCREENPAD_BRIGHT_MIN;
4110 }
4111
4112 static int update_screenpad_bl_status(struct backlight_device *bd)
4113 {
4114 struct asus_wmi *asus = bl_get_data(bd);
4115 int power, err = 0;
4116 u32 ctrl_param;
4117
4118 power = read_screenpad_backlight_power(asus);
4119 if (power < 0)
4120 return power;
4121
4122 if (bd->props.power != power) {
4123 if (power != BACKLIGHT_POWER_ON) {
4124 /* Only brightness > 0 can power it back on */
4125 ctrl_param = asus->driver->screenpad_brightness - ASUS_SCREENPAD_BRIGHT_MIN;
4126 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_SCREENPAD_LIGHT,
4127 ctrl_param, NULL);
4128 } else {
4129 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_SCREENPAD_POWER, 0, NULL);
4130 }
4131 } else if (power == BACKLIGHT_POWER_ON) {
4132 /* Only set brightness if powered on or we get invalid/unsync state */
4133 ctrl_param = bd->props.brightness + ASUS_SCREENPAD_BRIGHT_MIN;
4134 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_SCREENPAD_LIGHT, ctrl_param, NULL);
4135 }
4136
4137 /* Ensure brightness is stored to turn back on with */
4138 if (err == 0)
4139 asus->driver->screenpad_brightness = bd->props.brightness + ASUS_SCREENPAD_BRIGHT_MIN;
4140
4141 return err;
4142 }
4143
4144 static const struct backlight_ops asus_screenpad_bl_ops = {
4145 .get_brightness = read_screenpad_brightness,
4146 .update_status = update_screenpad_bl_status,
4147 .options = BL_CORE_SUSPENDRESUME,
4148 };
4149
4150 static int asus_screenpad_init(struct asus_wmi *asus)
4151 {
4152 struct backlight_device *bd;
4153 struct backlight_properties props;
4154 int err, power;
4155 int brightness = 0;
4156
4157 power = read_screenpad_backlight_power(asus);
4158 if (power < 0)
4159 return power;
4160
4161 if (power != BACKLIGHT_POWER_OFF) {
4162 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_SCREENPAD_LIGHT, &brightness);
4163 if (err < 0)
4164 return err;
4165 }
4166 /* default to an acceptable min brightness on boot if too low */
4167 if (brightness < ASUS_SCREENPAD_BRIGHT_MIN)
4168 brightness = ASUS_SCREENPAD_BRIGHT_DEFAULT;
4169
4170 memset(&props, 0, sizeof(struct backlight_properties));
4171 props.type = BACKLIGHT_RAW; /* ensure this bd is last to be picked */
4172 props.max_brightness = ASUS_SCREENPAD_BRIGHT_MAX - ASUS_SCREENPAD_BRIGHT_MIN;
4173 bd = backlight_device_register("asus_screenpad",
4174 &asus->platform_device->dev, asus,
4175 &asus_screenpad_bl_ops, &props);
4176 if (IS_ERR(bd)) {
4177 pr_err("Could not register backlight device\n");
4178 return PTR_ERR(bd);
4179 }
4180
4181 asus->screenpad_backlight_device = bd;
4182 asus->driver->screenpad_brightness = brightness;
4183 bd->props.brightness = brightness - ASUS_SCREENPAD_BRIGHT_MIN;
4184 bd->props.power = power;
4185 backlight_update_status(bd);
4186
4187 return 0;
4188 }
4189
4190 static void asus_screenpad_exit(struct asus_wmi *asus)
4191 {
4192 backlight_device_unregister(asus->screenpad_backlight_device);
4193
4194 asus->screenpad_backlight_device = NULL;
4195 }
4196
4197 /* Fn-lock ********************************************************************/
4198
4199 static bool asus_wmi_has_fnlock_key(struct asus_wmi *asus)
4200 {
4201 u32 result;
4202
4203 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FNLOCK, &result);
4204
4205 return (result & ASUS_WMI_DSTS_PRESENCE_BIT) &&
4206 !(result & ASUS_WMI_FNLOCK_BIOS_DISABLED);
4207 }
4208
4209 static void asus_wmi_fnlock_update(struct asus_wmi *asus)
4210 {
4211 int mode = asus->fnlock_locked;
4212
4213 asus_wmi_set_devstate(ASUS_WMI_DEVID_FNLOCK, mode, NULL);
4214 }
4215
4216 /* WMI events *****************************************************************/
4217
4218 static int asus_wmi_get_event_code(union acpi_object *obj)
4219 {
4220 int code;
4221
4222 if (obj && obj->type == ACPI_TYPE_INTEGER)
4223 code = (int)(obj->integer.value & WMI_EVENT_MASK);
4224 else
4225 code = -EIO;
4226
4227 return code;
4228 }
4229
4230 static void asus_wmi_handle_event_code(int code, struct asus_wmi *asus)
4231 {
4232 unsigned int key_value = 1;
4233 bool autorelease = 1;
4234
4235 if (asus->driver->key_filter) {
4236 asus->driver->key_filter(asus->driver, &code, &key_value,
4237 &autorelease);
4238 if (code == ASUS_WMI_KEY_IGNORE)
4239 return;
4240 }
4241
4242 if (acpi_video_get_backlight_type() == acpi_backlight_vendor &&
4243 code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNDOWN_MAX) {
4244 asus_wmi_backlight_notify(asus, code);
4245 return;
4246 }
4247
4248 if (code == NOTIFY_KBD_BRTUP) {
4249 kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1);
4250 return;
4251 }
4252 if (code == NOTIFY_KBD_BRTDWN) {
4253 kbd_led_set_by_kbd(asus, asus->kbd_led_wk - 1);
4254 return;
4255 }
4256 if (code == NOTIFY_KBD_BRTTOGGLE) {
4257 if (asus->kbd_led_wk == asus->kbd_led.max_brightness)
4258 kbd_led_set_by_kbd(asus, 0);
4259 else
4260 kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1);
4261 return;
4262 }
4263
4264 if (code == NOTIFY_FNLOCK_TOGGLE) {
4265 asus->fnlock_locked = !asus->fnlock_locked;
4266 asus_wmi_fnlock_update(asus);
4267 return;
4268 }
4269
4270 if (code == asus->tablet_switch_event_code) {
4271 asus_wmi_tablet_mode_get_state(asus);
4272 return;
4273 }
4274
4275 if (code == NOTIFY_KBD_FBM || code == NOTIFY_KBD_TTP) {
4276 if (asus->fan_boost_mode_available)
4277 fan_boost_mode_switch_next(asus);
4278 if (asus->throttle_thermal_policy_dev)
4279 platform_profile_cycle();
4280 return;
4281
4282 }
4283
4284 if (is_display_toggle(code) && asus->driver->quirks->no_display_toggle)
4285 return;
4286
4287 if (!sparse_keymap_report_event(asus->inputdev, code,
4288 key_value, autorelease))
4289 pr_info("Unknown key code 0x%x\n", code);
4290 }
4291
4292 static void asus_wmi_notify(union acpi_object *obj, void *context)
4293 {
4294 struct asus_wmi *asus = context;
4295 int code = asus_wmi_get_event_code(obj);
4296
4297 if (code < 0) {
4298 pr_warn("Failed to get notify code: %d\n", code);
4299 return;
4300 }
4301
4302 asus_wmi_handle_event_code(code, asus);
4303 }
4304
4305 /* Sysfs **********************************************************************/
4306
4307 static ssize_t store_sys_wmi(struct asus_wmi *asus, int devid,
4308 const char *buf, size_t count)
4309 {
4310 u32 retval;
4311 int err, value;
4312
4313 value = asus_wmi_get_devstate_simple(asus, devid);
4314 if (value < 0)
4315 return value;
4316
4317 err = kstrtoint(buf, 0, &value);
4318 if (err)
4319 return err;
4320
4321 err = asus_wmi_set_devstate(devid, value, &retval);
4322 if (err < 0)
4323 return err;
4324
4325 return count;
4326 }
4327
4328 static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
4329 {
4330 int value = asus_wmi_get_devstate_simple(asus, devid);
4331
4332 if (value < 0)
4333 return value;
4334
4335 return sysfs_emit(buf, "%d\n", value);
4336 }
4337
4338 #define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \
4339 static ssize_t show_##_name(struct device *dev, \
4340 struct device_attribute *attr, \
4341 char *buf) \
4342 { \
4343 struct asus_wmi *asus = dev_get_drvdata(dev); \
4344 \
4345 return show_sys_wmi(asus, _cm, buf); \
4346 } \
4347 static ssize_t store_##_name(struct device *dev, \
4348 struct device_attribute *attr, \
4349 const char *buf, size_t count) \
4350 { \
4351 struct asus_wmi *asus = dev_get_drvdata(dev); \
4352 \
4353 return store_sys_wmi(asus, _cm, buf, count); \
4354 } \
4355 static struct device_attribute dev_attr_##_name = { \
4356 .attr = { \
4357 .name = __stringify(_name), \
4358 .mode = _mode }, \
4359 .show = show_##_name, \
4360 .store = store_##_name, \
4361 }
4362
4363 ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD);
4364 ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA);
4365 ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
4366 ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume, 0644, ASUS_WMI_DEVID_LID_RESUME);
4367 ASUS_WMI_CREATE_DEVICE_ATTR(als_enable, 0644, ASUS_WMI_DEVID_ALS_ENABLE);
4368
4369 static ssize_t cpufv_store(struct device *dev, struct device_attribute *attr,
4370 const char *buf, size_t count)
4371 {
4372 int value, rv;
4373
4374 rv = kstrtoint(buf, 0, &value);
4375 if (rv)
4376 return rv;
4377
4378 if (value < 0 || value > 2)
4379 return -EINVAL;
4380
4381 rv = asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL);
4382 if (rv < 0)
4383 return rv;
4384
4385 return count;
4386 }
4387
4388 static DEVICE_ATTR_WO(cpufv);
4389
4390 static struct attribute *platform_attributes[] = {
4391 &dev_attr_cpufv.attr,
4392 &dev_attr_camera.attr,
4393 &dev_attr_cardr.attr,
4394 &dev_attr_touchpad.attr,
4395 &dev_attr_charge_mode.attr,
4396 &dev_attr_egpu_enable.attr,
4397 &dev_attr_egpu_connected.attr,
4398 &dev_attr_dgpu_disable.attr,
4399 &dev_attr_gpu_mux_mode.attr,
4400 &dev_attr_lid_resume.attr,
4401 &dev_attr_als_enable.attr,
4402 &dev_attr_fan_boost_mode.attr,
4403 &dev_attr_throttle_thermal_policy.attr,
4404 &dev_attr_ppt_pl2_sppt.attr,
4405 &dev_attr_ppt_pl1_spl.attr,
4406 &dev_attr_ppt_fppt.attr,
4407 &dev_attr_ppt_apu_sppt.attr,
4408 &dev_attr_ppt_platform_sppt.attr,
4409 &dev_attr_nv_dynamic_boost.attr,
4410 &dev_attr_nv_temp_target.attr,
4411 &dev_attr_mcu_powersave.attr,
4412 &dev_attr_boot_sound.attr,
4413 &dev_attr_panel_od.attr,
4414 &dev_attr_mini_led_mode.attr,
4415 &dev_attr_available_mini_led_mode.attr,
4416 NULL
4417 };
4418
4419 static umode_t asus_sysfs_is_visible(struct kobject *kobj,
4420 struct attribute *attr, int idx)
4421 {
4422 struct device *dev = kobj_to_dev(kobj);
4423 struct asus_wmi *asus = dev_get_drvdata(dev);
4424 bool ok = true;
4425 int devid = -1;
4426
4427 if (attr == &dev_attr_camera.attr)
4428 devid = ASUS_WMI_DEVID_CAMERA;
4429 else if (attr == &dev_attr_cardr.attr)
4430 devid = ASUS_WMI_DEVID_CARDREADER;
4431 else if (attr == &dev_attr_touchpad.attr)
4432 devid = ASUS_WMI_DEVID_TOUCHPAD;
4433 else if (attr == &dev_attr_lid_resume.attr)
4434 devid = ASUS_WMI_DEVID_LID_RESUME;
4435 else if (attr == &dev_attr_als_enable.attr)
4436 devid = ASUS_WMI_DEVID_ALS_ENABLE;
4437 else if (attr == &dev_attr_charge_mode.attr)
4438 devid = ASUS_WMI_DEVID_CHARGE_MODE;
4439 else if (attr == &dev_attr_egpu_enable.attr)
4440 ok = asus->egpu_enable_available;
4441 else if (attr == &dev_attr_egpu_connected.attr)
4442 devid = ASUS_WMI_DEVID_EGPU_CONNECTED;
4443 else if (attr == &dev_attr_dgpu_disable.attr)
4444 ok = asus->dgpu_disable_available;
4445 else if (attr == &dev_attr_gpu_mux_mode.attr)
4446 ok = asus->gpu_mux_dev != 0;
4447 else if (attr == &dev_attr_fan_boost_mode.attr)
4448 ok = asus->fan_boost_mode_available;
4449 else if (attr == &dev_attr_throttle_thermal_policy.attr)
4450 ok = asus->throttle_thermal_policy_dev != 0;
4451 else if (attr == &dev_attr_ppt_pl2_sppt.attr)
4452 devid = ASUS_WMI_DEVID_PPT_PL2_SPPT;
4453 else if (attr == &dev_attr_ppt_pl1_spl.attr)
4454 devid = ASUS_WMI_DEVID_PPT_PL1_SPL;
4455 else if (attr == &dev_attr_ppt_fppt.attr)
4456 devid = ASUS_WMI_DEVID_PPT_FPPT;
4457 else if (attr == &dev_attr_ppt_apu_sppt.attr)
4458 devid = ASUS_WMI_DEVID_PPT_APU_SPPT;
4459 else if (attr == &dev_attr_ppt_platform_sppt.attr)
4460 devid = ASUS_WMI_DEVID_PPT_PLAT_SPPT;
4461 else if (attr == &dev_attr_nv_dynamic_boost.attr)
4462 devid = ASUS_WMI_DEVID_NV_DYN_BOOST;
4463 else if (attr == &dev_attr_nv_temp_target.attr)
4464 devid = ASUS_WMI_DEVID_NV_THERM_TARGET;
4465 else if (attr == &dev_attr_mcu_powersave.attr)
4466 devid = ASUS_WMI_DEVID_MCU_POWERSAVE;
4467 else if (attr == &dev_attr_boot_sound.attr)
4468 devid = ASUS_WMI_DEVID_BOOT_SOUND;
4469 else if (attr == &dev_attr_panel_od.attr)
4470 devid = ASUS_WMI_DEVID_PANEL_OD;
4471 else if (attr == &dev_attr_mini_led_mode.attr)
4472 ok = asus->mini_led_dev_id != 0;
4473 else if (attr == &dev_attr_available_mini_led_mode.attr)
4474 ok = asus->mini_led_dev_id != 0;
4475
4476 if (devid != -1) {
4477 ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
4478 pr_debug("%s called 0x%08x, ok: %x\n", __func__, devid, ok);
4479 }
4480
4481 return ok ? attr->mode : 0;
4482 }
4483
4484 static const struct attribute_group platform_attribute_group = {
4485 .is_visible = asus_sysfs_is_visible,
4486 .attrs = platform_attributes
4487 };
4488
4489 static void asus_wmi_sysfs_exit(struct platform_device *device)
4490 {
4491 sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
4492 }
4493
4494 static int asus_wmi_sysfs_init(struct platform_device *device)
4495 {
4496 return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
4497 }
4498
4499 /* Platform device ************************************************************/
4500
4501 static int asus_wmi_platform_init(struct asus_wmi *asus)
4502 {
4503 struct device *dev = &asus->platform_device->dev;
4504 char *wmi_uid;
4505 int rv;
4506
4507 /* INIT enable hotkeys on some models */
4508 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv))
4509 pr_info("Initialization: %#x\n", rv);
4510
4511 /* We don't know yet what to do with this version... */
4512 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) {
4513 pr_info("BIOS WMI version: %d.%d\n", rv >> 16, rv & 0xFF);
4514 asus->spec = rv;
4515 }
4516
4517 /*
4518 * The SFUN method probably allows the original driver to get the list
4519 * of features supported by a given model. For now, 0x0100 or 0x0800
4520 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
4521 * The significance of others is yet to be found.
4522 */
4523 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) {
4524 pr_info("SFUN value: %#x\n", rv);
4525 asus->sfun = rv;
4526 }
4527
4528 /*
4529 * Eee PC and Notebooks seems to have different method_id for DSTS,
4530 * but it may also be related to the BIOS's SPEC.
4531 * Note, on most Eeepc, there is no way to check if a method exist
4532 * or note, while on notebooks, they returns 0xFFFFFFFE on failure,
4533 * but once again, SPEC may probably be used for that kind of things.
4534 *
4535 * Additionally at least TUF Gaming series laptops return nothing for
4536 * unknown methods, so the detection in this way is not possible.
4537 *
4538 * There is strong indication that only ACPI WMI devices that have _UID
4539 * equal to "ASUSWMI" use DCTS whereas those with "ATK" use DSTS.
4540 */
4541 wmi_uid = wmi_get_acpi_device_uid(ASUS_WMI_MGMT_GUID);
4542 if (!wmi_uid)
4543 return -ENODEV;
4544
4545 if (!strcmp(wmi_uid, ASUS_ACPI_UID_ASUSWMI)) {
4546 dev_info(dev, "Detected ASUSWMI, use DCTS\n");
4547 asus->dsts_id = ASUS_WMI_METHODID_DCTS;
4548 } else {
4549 dev_info(dev, "Detected %s, not ASUSWMI, use DSTS\n", wmi_uid);
4550 asus->dsts_id = ASUS_WMI_METHODID_DSTS;
4551 }
4552
4553 /* CWAP allow to define the behavior of the Fn+F2 key,
4554 * this method doesn't seems to be present on Eee PCs */
4555 if (asus->driver->quirks->wapf >= 0)
4556 asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP,
4557 asus->driver->quirks->wapf, NULL);
4558
4559 return 0;
4560 }
4561
4562 /* debugfs ********************************************************************/
4563
4564 struct asus_wmi_debugfs_node {
4565 struct asus_wmi *asus;
4566 char *name;
4567 int (*show) (struct seq_file *m, void *data);
4568 };
4569
4570 static int show_dsts(struct seq_file *m, void *data)
4571 {
4572 struct asus_wmi *asus = m->private;
4573 int err;
4574 u32 retval = -1;
4575
4576 err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
4577 if (err < 0)
4578 return err;
4579
4580 seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval);
4581
4582 return 0;
4583 }
4584
4585 static int show_devs(struct seq_file *m, void *data)
4586 {
4587 struct asus_wmi *asus = m->private;
4588 int err;
4589 u32 retval = -1;
4590
4591 err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
4592 &retval);
4593 if (err < 0)
4594 return err;
4595
4596 seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id,
4597 asus->debug.ctrl_param, retval);
4598
4599 return 0;
4600 }
4601
4602 static int show_call(struct seq_file *m, void *data)
4603 {
4604 struct asus_wmi *asus = m->private;
4605 struct bios_args args = {
4606 .arg0 = asus->debug.dev_id,
4607 .arg1 = asus->debug.ctrl_param,
4608 };
4609 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
4610 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
4611 union acpi_object *obj;
4612 acpi_status status;
4613
4614 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
4615 0, asus->debug.method_id,
4616 &input, &output);
4617
4618 if (ACPI_FAILURE(status))
4619 return -EIO;
4620
4621 obj = (union acpi_object *)output.pointer;
4622 if (obj && obj->type == ACPI_TYPE_INTEGER)
4623 seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id,
4624 asus->debug.dev_id, asus->debug.ctrl_param,
4625 (u32) obj->integer.value);
4626 else
4627 seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id,
4628 asus->debug.dev_id, asus->debug.ctrl_param,
4629 obj ? obj->type : -1);
4630
4631 kfree(obj);
4632
4633 return 0;
4634 }
4635
4636 static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = {
4637 {NULL, "devs", show_devs},
4638 {NULL, "dsts", show_dsts},
4639 {NULL, "call", show_call},
4640 };
4641
4642 static int asus_wmi_debugfs_open(struct inode *inode, struct file *file)
4643 {
4644 struct asus_wmi_debugfs_node *node = inode->i_private;
4645
4646 return single_open(file, node->show, node->asus);
4647 }
4648
4649 static const struct file_operations asus_wmi_debugfs_io_ops = {
4650 .owner = THIS_MODULE,
4651 .open = asus_wmi_debugfs_open,
4652 .read = seq_read,
4653 .llseek = seq_lseek,
4654 .release = single_release,
4655 };
4656
4657 static void asus_wmi_debugfs_exit(struct asus_wmi *asus)
4658 {
4659 debugfs_remove_recursive(asus->debug.root);
4660 }
4661
4662 static void asus_wmi_debugfs_init(struct asus_wmi *asus)
4663 {
4664 int i;
4665
4666 asus->debug.root = debugfs_create_dir(asus->driver->name, NULL);
4667
4668 debugfs_create_x32("method_id", S_IRUGO | S_IWUSR, asus->debug.root,
4669 &asus->debug.method_id);
4670
4671 debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR, asus->debug.root,
4672 &asus->debug.dev_id);
4673
4674 debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR, asus->debug.root,
4675 &asus->debug.ctrl_param);
4676
4677 for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) {
4678 struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i];
4679
4680 node->asus = asus;
4681 debugfs_create_file(node->name, S_IFREG | S_IRUGO,
4682 asus->debug.root, node,
4683 &asus_wmi_debugfs_io_ops);
4684 }
4685 }
4686
4687 /* Init / exit ****************************************************************/
4688
4689 static int asus_wmi_add(struct platform_device *pdev)
4690 {
4691 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
4692 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
4693 struct asus_wmi *asus;
4694 acpi_status status;
4695 int err;
4696 u32 result;
4697
4698 asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL);
4699 if (!asus)
4700 return -ENOMEM;
4701
4702 asus->driver = wdrv;
4703 asus->platform_device = pdev;
4704 wdrv->platform_device = pdev;
4705 platform_set_drvdata(asus->platform_device, asus);
4706
4707 if (wdrv->detect_quirks)
4708 wdrv->detect_quirks(asus->driver);
4709
4710 err = asus_wmi_platform_init(asus);
4711 if (err)
4712 goto fail_platform;
4713
4714 /* ensure defaults for tunables */
4715 asus->ppt_pl2_sppt = 5;
4716 asus->ppt_pl1_spl = 5;
4717 asus->ppt_apu_sppt = 5;
4718 asus->ppt_platform_sppt = 5;
4719 asus->ppt_fppt = 5;
4720 asus->nv_dynamic_boost = 5;
4721 asus->nv_temp_target = 75;
4722
4723 asus->egpu_enable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU);
4724 asus->dgpu_disable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_DGPU);
4725 asus->kbd_rgb_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_STATE);
4726 asus->ally_mcu_usb_switch = acpi_has_method(NULL, ASUS_USB0_PWR_EC0_CSEE)
4727 && dmi_check_system(asus_ally_mcu_quirk);
4728
4729 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE))
4730 asus->mini_led_dev_id = ASUS_WMI_DEVID_MINI_LED_MODE;
4731 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE2))
4732 asus->mini_led_dev_id = ASUS_WMI_DEVID_MINI_LED_MODE2;
4733
4734 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX))
4735 asus->gpu_mux_dev = ASUS_WMI_DEVID_GPU_MUX;
4736 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX_VIVO))
4737 asus->gpu_mux_dev = ASUS_WMI_DEVID_GPU_MUX_VIVO;
4738
4739 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE))
4740 asus->kbd_rgb_dev = ASUS_WMI_DEVID_TUF_RGB_MODE;
4741 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE2))
4742 asus->kbd_rgb_dev = ASUS_WMI_DEVID_TUF_RGB_MODE2;
4743
4744 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY))
4745 asus->throttle_thermal_policy_dev = ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY;
4746 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY_VIVO))
4747 asus->throttle_thermal_policy_dev = ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY_VIVO;
4748
4749 err = fan_boost_mode_check_present(asus);
4750 if (err)
4751 goto fail_fan_boost_mode;
4752
4753 err = platform_profile_setup(asus);
4754 if (err)
4755 goto fail_platform_profile_setup;
4756
4757 err = asus_wmi_sysfs_init(asus->platform_device);
4758 if (err)
4759 goto fail_sysfs;
4760
4761 err = asus_wmi_input_init(asus);
4762 if (err)
4763 goto fail_input;
4764
4765 err = asus_wmi_fan_init(asus); /* probably no problems on error */
4766
4767 err = asus_wmi_hwmon_init(asus);
4768 if (err)
4769 goto fail_hwmon;
4770
4771 err = asus_wmi_custom_fan_curve_init(asus);
4772 if (err)
4773 goto fail_custom_fan_curve;
4774
4775 err = asus_wmi_led_init(asus);
4776 if (err)
4777 goto fail_leds;
4778
4779 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result);
4780 if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT))
4781 asus->driver->wlan_ctrl_by_user = 1;
4782
4783 if (!(asus->driver->wlan_ctrl_by_user && ashs_present())) {
4784 err = asus_wmi_rfkill_init(asus);
4785 if (err)
4786 goto fail_rfkill;
4787 }
4788
4789 if (asus->driver->quirks->wmi_force_als_set)
4790 asus_wmi_set_als();
4791
4792 if (asus->driver->quirks->xusb2pr)
4793 asus_wmi_set_xusb2pr(asus);
4794
4795 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
4796 err = asus_wmi_backlight_init(asus);
4797 if (err && err != -ENODEV)
4798 goto fail_backlight;
4799 } else if (asus->driver->quirks->wmi_backlight_set_devstate)
4800 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL);
4801
4802 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_SCREENPAD_LIGHT)) {
4803 err = asus_screenpad_init(asus);
4804 if (err && err != -ENODEV)
4805 goto fail_screenpad;
4806 }
4807
4808 if (asus_wmi_has_fnlock_key(asus)) {
4809 asus->fnlock_locked = fnlock_default;
4810 asus_wmi_fnlock_update(asus);
4811 }
4812
4813 status = wmi_install_notify_handler(asus->driver->event_guid,
4814 asus_wmi_notify, asus);
4815 if (ACPI_FAILURE(status)) {
4816 pr_err("Unable to register notify handler - %d\n", status);
4817 err = -ENODEV;
4818 goto fail_wmi_handler;
4819 }
4820
4821 if (asus->driver->i8042_filter) {
4822 err = i8042_install_filter(asus->driver->i8042_filter, NULL);
4823 if (err)
4824 pr_warn("Unable to install key filter - %d\n", err);
4825 }
4826
4827 asus_wmi_battery_init(asus);
4828
4829 asus_wmi_debugfs_init(asus);
4830
4831 return 0;
4832
4833 fail_wmi_handler:
4834 asus_wmi_backlight_exit(asus);
4835 fail_backlight:
4836 asus_wmi_rfkill_exit(asus);
4837 fail_screenpad:
4838 asus_screenpad_exit(asus);
4839 fail_rfkill:
4840 asus_wmi_led_exit(asus);
4841 fail_leds:
4842 fail_hwmon:
4843 asus_wmi_input_exit(asus);
4844 fail_input:
4845 asus_wmi_sysfs_exit(asus->platform_device);
4846 fail_sysfs:
4847 fail_custom_fan_curve:
4848 fail_platform_profile_setup:
4849 fail_fan_boost_mode:
4850 fail_platform:
4851 kfree(asus);
4852 return err;
4853 }
4854
4855 static void asus_wmi_remove(struct platform_device *device)
4856 {
4857 struct asus_wmi *asus;
4858
4859 asus = platform_get_drvdata(device);
4860 if (asus->driver->i8042_filter)
4861 i8042_remove_filter(asus->driver->i8042_filter);
4862 wmi_remove_notify_handler(asus->driver->event_guid);
4863 asus_wmi_backlight_exit(asus);
4864 asus_screenpad_exit(asus);
4865 asus_wmi_input_exit(asus);
4866 asus_wmi_led_exit(asus);
4867 asus_wmi_rfkill_exit(asus);
4868 asus_wmi_debugfs_exit(asus);
4869 asus_wmi_sysfs_exit(asus->platform_device);
4870 asus_fan_set_auto(asus);
4871 throttle_thermal_policy_set_default(asus);
4872 asus_wmi_battery_exit(asus);
4873
4874 kfree(asus);
4875 }
4876
4877 /* Platform driver - hibernate/resume callbacks *******************************/
4878
4879 static int asus_hotk_thaw(struct device *device)
4880 {
4881 struct asus_wmi *asus = dev_get_drvdata(device);
4882
4883 if (asus->wlan.rfkill) {
4884 bool wlan;
4885
4886 /*
4887 * Work around bios bug - acpi _PTS turns off the wireless led
4888 * during suspend. Normally it restores it on resume, but
4889 * we should kick it ourselves in case hibernation is aborted.
4890 */
4891 wlan = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
4892 asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL);
4893 }
4894
4895 return 0;
4896 }
4897
4898 static int asus_hotk_resume(struct device *device)
4899 {
4900 struct asus_wmi *asus = dev_get_drvdata(device);
4901
4902 if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
4903 kbd_led_update(asus);
4904
4905 if (asus_wmi_has_fnlock_key(asus))
4906 asus_wmi_fnlock_update(asus);
4907
4908 asus_wmi_tablet_mode_get_state(asus);
4909
4910 return 0;
4911 }
4912
4913 static int asus_hotk_resume_early(struct device *device)
4914 {
4915 struct asus_wmi *asus = dev_get_drvdata(device);
4916
4917 if (asus->ally_mcu_usb_switch) {
4918 /* sleep required to prevent USB0 being yanked then reappearing rapidly */
4919 if (ACPI_FAILURE(acpi_execute_simple_method(NULL, ASUS_USB0_PWR_EC0_CSEE, 0xB8)))
4920 dev_err(device, "ROG Ally MCU failed to connect USB dev\n");
4921 else
4922 msleep(ASUS_USB0_PWR_EC0_CSEE_WAIT);
4923 }
4924 return 0;
4925 }
4926
4927 static int asus_hotk_prepare(struct device *device)
4928 {
4929 struct asus_wmi *asus = dev_get_drvdata(device);
4930
4931 if (asus->ally_mcu_usb_switch) {
4932 /* sleep required to ensure USB0 is disabled before sleep continues */
4933 if (ACPI_FAILURE(acpi_execute_simple_method(NULL, ASUS_USB0_PWR_EC0_CSEE, 0xB7)))
4934 dev_err(device, "ROG Ally MCU failed to disconnect USB dev\n");
4935 else
4936 msleep(ASUS_USB0_PWR_EC0_CSEE_WAIT);
4937 }
4938 return 0;
4939 }
4940
4941 static int asus_hotk_restore(struct device *device)
4942 {
4943 struct asus_wmi *asus = dev_get_drvdata(device);
4944 int bl;
4945
4946 /* Refresh both wlan rfkill state and pci hotplug */
4947 if (asus->wlan.rfkill)
4948 asus_rfkill_hotplug(asus);
4949
4950 if (asus->bluetooth.rfkill) {
4951 bl = !asus_wmi_get_devstate_simple(asus,
4952 ASUS_WMI_DEVID_BLUETOOTH);
4953 rfkill_set_sw_state(asus->bluetooth.rfkill, bl);
4954 }
4955 if (asus->wimax.rfkill) {
4956 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WIMAX);
4957 rfkill_set_sw_state(asus->wimax.rfkill, bl);
4958 }
4959 if (asus->wwan3g.rfkill) {
4960 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WWAN3G);
4961 rfkill_set_sw_state(asus->wwan3g.rfkill, bl);
4962 }
4963 if (asus->gps.rfkill) {
4964 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPS);
4965 rfkill_set_sw_state(asus->gps.rfkill, bl);
4966 }
4967 if (asus->uwb.rfkill) {
4968 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_UWB);
4969 rfkill_set_sw_state(asus->uwb.rfkill, bl);
4970 }
4971 if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
4972 kbd_led_update(asus);
4973
4974 if (asus_wmi_has_fnlock_key(asus))
4975 asus_wmi_fnlock_update(asus);
4976
4977 asus_wmi_tablet_mode_get_state(asus);
4978 return 0;
4979 }
4980
4981 static const struct dev_pm_ops asus_pm_ops = {
4982 .thaw = asus_hotk_thaw,
4983 .restore = asus_hotk_restore,
4984 .resume = asus_hotk_resume,
4985 .resume_early = asus_hotk_resume_early,
4986 .prepare = asus_hotk_prepare,
4987 };
4988
4989 /* Registration ***************************************************************/
4990
4991 static int asus_wmi_probe(struct platform_device *pdev)
4992 {
4993 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
4994 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
4995 int ret;
4996
4997 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
4998 pr_warn("ASUS Management GUID not found\n");
4999 return -ENODEV;
5000 }
5001
5002 if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) {
5003 pr_warn("ASUS Event GUID not found\n");
5004 return -ENODEV;
5005 }
5006
5007 if (wdrv->probe) {
5008 ret = wdrv->probe(pdev);
5009 if (ret)
5010 return ret;
5011 }
5012
5013 return asus_wmi_add(pdev);
5014 }
5015
5016 static bool used;
5017
5018 int __init_or_module asus_wmi_register_driver(struct asus_wmi_driver *driver)
5019 {
5020 struct platform_driver *platform_driver;
5021 struct platform_device *platform_device;
5022
5023 if (used)
5024 return -EBUSY;
5025
5026 platform_driver = &driver->platform_driver;
5027 platform_driver->remove = asus_wmi_remove;
5028 platform_driver->driver.owner = driver->owner;
5029 platform_driver->driver.name = driver->name;
5030 platform_driver->driver.pm = &asus_pm_ops;
5031
5032 platform_device = platform_create_bundle(platform_driver,
5033 asus_wmi_probe,
5034 NULL, 0, NULL, 0);
5035 if (IS_ERR(platform_device))
5036 return PTR_ERR(platform_device);
5037
5038 used = true;
5039 return 0;
5040 }
5041 EXPORT_SYMBOL_GPL(asus_wmi_register_driver);
5042
5043 void asus_wmi_unregister_driver(struct asus_wmi_driver *driver)
5044 {
5045 platform_device_unregister(driver->platform_device);
5046 platform_driver_unregister(&driver->platform_driver);
5047 used = false;
5048 }
5049 EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver);
5050
5051 static int __init asus_wmi_init(void)
5052 {
5053 pr_info("ASUS WMI generic driver loaded\n");
5054 return 0;
5055 }
5056
5057 static void __exit asus_wmi_exit(void)
5058 {
5059 pr_info("ASUS WMI generic driver unloaded\n");
5060 }
5061
5062 module_init(asus_wmi_init);
5063 module_exit(asus_wmi_exit);
Linux Kernel