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1/*
2 * Asus PC WMI hotkey driver
3 *
4 * Copyright(C) 2010 Intel Corporation.
5 * Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com>
6 *
7 * Portions based on wistron_btns.c:
8 * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
9 * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
10 * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 */
26
27#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
28
29#include <linux/kernel.h>
30#include <linux/module.h>
31#include <linux/init.h>
32#include <linux/types.h>
33#include <linux/slab.h>
34#include <linux/input.h>
35#include <linux/input/sparse-keymap.h>
36#include <linux/fb.h>
37#include <linux/backlight.h>
38#include <linux/leds.h>
39#include <linux/rfkill.h>
40#include <linux/pci.h>
41#include <linux/pci_hotplug.h>
42#include <linux/hwmon.h>
43#include <linux/hwmon-sysfs.h>
44#include <linux/debugfs.h>
45#include <linux/seq_file.h>
46#include <linux/platform_device.h>
47#include <linux/thermal.h>
48#include <acpi/acpi_bus.h>
49#include <acpi/acpi_drivers.h>
50
51#include "asus-wmi.h"
52
53MODULE_AUTHOR("Corentin Chary <corentincj@iksaif.net>, "
54 "Yong Wang <yong.y.wang@intel.com>");
55MODULE_DESCRIPTION("Asus Generic WMI Driver");
56MODULE_LICENSE("GPL");
57
58#define to_platform_driver(drv) \
59 (container_of((drv), struct platform_driver, driver))
60
61#define to_asus_wmi_driver(pdrv) \
62 (container_of((pdrv), struct asus_wmi_driver, platform_driver))
63
64#define ASUS_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66"
65
66#define NOTIFY_BRNUP_MIN 0x11
67#define NOTIFY_BRNUP_MAX 0x1f
68#define NOTIFY_BRNDOWN_MIN 0x20
69#define NOTIFY_BRNDOWN_MAX 0x2e
70#define NOTIFY_KBD_BRTUP 0xc4
71#define NOTIFY_KBD_BRTDWN 0xc5
72
73/* WMI Methods */
74#define ASUS_WMI_METHODID_SPEC 0x43455053 /* BIOS SPECification */
75#define ASUS_WMI_METHODID_SFBD 0x44424653 /* Set First Boot Device */
76#define ASUS_WMI_METHODID_GLCD 0x44434C47 /* Get LCD status */
77#define ASUS_WMI_METHODID_GPID 0x44495047 /* Get Panel ID?? (Resol) */
78#define ASUS_WMI_METHODID_QMOD 0x444F4D51 /* Quiet MODe */
79#define ASUS_WMI_METHODID_SPLV 0x4C425053 /* Set Panel Light Value */
80#define ASUS_WMI_METHODID_SFUN 0x4E554653 /* FUNCtionalities */
81#define ASUS_WMI_METHODID_SDSP 0x50534453 /* Set DiSPlay output */
82#define ASUS_WMI_METHODID_GDSP 0x50534447 /* Get DiSPlay output */
83#define ASUS_WMI_METHODID_DEVP 0x50564544 /* DEVice Policy */
84#define ASUS_WMI_METHODID_OSVR 0x5256534F /* OS VeRsion */
85#define ASUS_WMI_METHODID_DSTS 0x53544344 /* Device STatuS */
86#define ASUS_WMI_METHODID_DSTS2 0x53545344 /* Device STatuS #2*/
87#define ASUS_WMI_METHODID_BSTS 0x53545342 /* Bios STatuS ? */
88#define ASUS_WMI_METHODID_DEVS 0x53564544 /* DEVice Set */
89#define ASUS_WMI_METHODID_CFVS 0x53564643 /* CPU Frequency Volt Set */
90#define ASUS_WMI_METHODID_KBFT 0x5446424B /* KeyBoard FilTer */
91#define ASUS_WMI_METHODID_INIT 0x54494E49 /* INITialize */
92#define ASUS_WMI_METHODID_HKEY 0x59454B48 /* Hot KEY ?? */
93
94#define ASUS_WMI_UNSUPPORTED_METHOD 0xFFFFFFFE
95
96/* Wireless */
97#define ASUS_WMI_DEVID_HW_SWITCH 0x00010001
98#define ASUS_WMI_DEVID_WIRELESS_LED 0x00010002
99#define ASUS_WMI_DEVID_CWAP 0x00010003
100#define ASUS_WMI_DEVID_WLAN 0x00010011
101#define ASUS_WMI_DEVID_BLUETOOTH 0x00010013
102#define ASUS_WMI_DEVID_GPS 0x00010015
103#define ASUS_WMI_DEVID_WIMAX 0x00010017
104#define ASUS_WMI_DEVID_WWAN3G 0x00010019
105#define ASUS_WMI_DEVID_UWB 0x00010021
106
107/* Leds */
108/* 0x000200XX and 0x000400XX */
109#define ASUS_WMI_DEVID_LED1 0x00020011
110#define ASUS_WMI_DEVID_LED2 0x00020012
111#define ASUS_WMI_DEVID_LED3 0x00020013
112#define ASUS_WMI_DEVID_LED4 0x00020014
113#define ASUS_WMI_DEVID_LED5 0x00020015
114#define ASUS_WMI_DEVID_LED6 0x00020016
115
116/* Backlight and Brightness */
117#define ASUS_WMI_DEVID_BACKLIGHT 0x00050011
118#define ASUS_WMI_DEVID_BRIGHTNESS 0x00050012
119#define ASUS_WMI_DEVID_KBD_BACKLIGHT 0x00050021
120#define ASUS_WMI_DEVID_LIGHT_SENSOR 0x00050022 /* ?? */
121
122/* Misc */
123#define ASUS_WMI_DEVID_CAMERA 0x00060013
124
125/* Storage */
126#define ASUS_WMI_DEVID_CARDREADER 0x00080013
127
128/* Input */
129#define ASUS_WMI_DEVID_TOUCHPAD 0x00100011
130#define ASUS_WMI_DEVID_TOUCHPAD_LED 0x00100012
131
132/* Fan, Thermal */
133#define ASUS_WMI_DEVID_THERMAL_CTRL 0x00110011
134#define ASUS_WMI_DEVID_FAN_CTRL 0x00110012
135
136/* Power */
137#define ASUS_WMI_DEVID_PROCESSOR_STATE 0x00120012
138
139/* DSTS masks */
140#define ASUS_WMI_DSTS_STATUS_BIT 0x00000001
141#define ASUS_WMI_DSTS_UNKNOWN_BIT 0x00000002
142#define ASUS_WMI_DSTS_PRESENCE_BIT 0x00010000
143#define ASUS_WMI_DSTS_USER_BIT 0x00020000
144#define ASUS_WMI_DSTS_BIOS_BIT 0x00040000
145#define ASUS_WMI_DSTS_BRIGHTNESS_MASK 0x000000FF
146#define ASUS_WMI_DSTS_MAX_BRIGTH_MASK 0x0000FF00
147
148struct bios_args {
149 u32 arg0;
150 u32 arg1;
151} __packed;
152
153/*
154 * <platform>/ - debugfs root directory
155 * dev_id - current dev_id
156 * ctrl_param - current ctrl_param
157 * method_id - current method_id
158 * devs - call DEVS(dev_id, ctrl_param) and print result
159 * dsts - call DSTS(dev_id) and print result
160 * call - call method_id(dev_id, ctrl_param) and print result
161 */
162struct asus_wmi_debug {
163 struct dentry *root;
164 u32 method_id;
165 u32 dev_id;
166 u32 ctrl_param;
167};
168
169struct asus_rfkill {
170 struct asus_wmi *asus;
171 struct rfkill *rfkill;
172 u32 dev_id;
173};
174
175struct asus_wmi {
176 int dsts_id;
177 int spec;
178 int sfun;
179
180 struct input_dev *inputdev;
181 struct backlight_device *backlight_device;
182 struct device *hwmon_device;
183 struct platform_device *platform_device;
184
185 struct led_classdev tpd_led;
186 int tpd_led_wk;
187 struct led_classdev kbd_led;
188 int kbd_led_wk;
189 struct workqueue_struct *led_workqueue;
190 struct work_struct tpd_led_work;
191 struct work_struct kbd_led_work;
192
193 struct asus_rfkill wlan;
194 struct asus_rfkill bluetooth;
195 struct asus_rfkill wimax;
196 struct asus_rfkill wwan3g;
197 struct asus_rfkill gps;
198 struct asus_rfkill uwb;
199
200 struct hotplug_slot *hotplug_slot;
201 struct mutex hotplug_lock;
202 struct mutex wmi_lock;
203 struct workqueue_struct *hotplug_workqueue;
204 struct work_struct hotplug_work;
205
206 struct asus_wmi_debug debug;
207
208 struct asus_wmi_driver *driver;
209};
210
211static int asus_wmi_input_init(struct asus_wmi *asus)
212{
213 int err;
214
215 asus->inputdev = input_allocate_device();
216 if (!asus->inputdev)
217 return -ENOMEM;
218
219 asus->inputdev->name = asus->driver->input_name;
220 asus->inputdev->phys = asus->driver->input_phys;
221 asus->inputdev->id.bustype = BUS_HOST;
222 asus->inputdev->dev.parent = &asus->platform_device->dev;
223 set_bit(EV_REP, asus->inputdev->evbit);
224
225 err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL);
226 if (err)
227 goto err_free_dev;
228
229 err = input_register_device(asus->inputdev);
230 if (err)
231 goto err_free_keymap;
232
233 return 0;
234
235err_free_keymap:
236 sparse_keymap_free(asus->inputdev);
237err_free_dev:
238 input_free_device(asus->inputdev);
239 return err;
240}
241
242static void asus_wmi_input_exit(struct asus_wmi *asus)
243{
244 if (asus->inputdev) {
245 sparse_keymap_free(asus->inputdev);
246 input_unregister_device(asus->inputdev);
247 }
248
249 asus->inputdev = NULL;
250}
251
252static int asus_wmi_evaluate_method(u32 method_id, u32 arg0, u32 arg1,
253 u32 *retval)
254{
255 struct bios_args args = {
256 .arg0 = arg0,
257 .arg1 = arg1,
258 };
259 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
260 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
261 acpi_status status;
262 union acpi_object *obj;
263 u32 tmp;
264
265 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 1, method_id,
266 &input, &output);
267
268 if (ACPI_FAILURE(status))
269 goto exit;
270
271 obj = (union acpi_object *)output.pointer;
272 if (obj && obj->type == ACPI_TYPE_INTEGER)
273 tmp = (u32) obj->integer.value;
274 else
275 tmp = 0;
276
277 if (retval)
278 *retval = tmp;
279
280 kfree(obj);
281
282exit:
283 if (ACPI_FAILURE(status))
284 return -EIO;
285
286 if (tmp == ASUS_WMI_UNSUPPORTED_METHOD)
287 return -ENODEV;
288
289 return 0;
290}
291
292static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval)
293{
294 return asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval);
295}
296
297static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
298 u32 *retval)
299{
300 return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS, dev_id,
301 ctrl_param, retval);
302}
303
304/* Helper for special devices with magic return codes */
305static int asus_wmi_get_devstate_bits(struct asus_wmi *asus,
306 u32 dev_id, u32 mask)
307{
308 u32 retval = 0;
309 int err;
310
311 err = asus_wmi_get_devstate(asus, dev_id, &retval);
312
313 if (err < 0)
314 return err;
315
316 if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT))
317 return -ENODEV;
318
319 if (mask == ASUS_WMI_DSTS_STATUS_BIT) {
320 if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT)
321 return -ENODEV;
322 }
323
324 return retval & mask;
325}
326
327static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id)
328{
329 return asus_wmi_get_devstate_bits(asus, dev_id,
330 ASUS_WMI_DSTS_STATUS_BIT);
331}
332
333/*
334 * LEDs
335 */
336/*
337 * These functions actually update the LED's, and are called from a
338 * workqueue. By doing this as separate work rather than when the LED
339 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
340 * potentially bad time, such as a timer interrupt.
341 */
342static void tpd_led_update(struct work_struct *work)
343{
344 int ctrl_param;
345 struct asus_wmi *asus;
346
347 asus = container_of(work, struct asus_wmi, tpd_led_work);
348
349 ctrl_param = asus->tpd_led_wk;
350 asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
351}
352
353static void tpd_led_set(struct led_classdev *led_cdev,
354 enum led_brightness value)
355{
356 struct asus_wmi *asus;
357
358 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
359
360 asus->tpd_led_wk = !!value;
361 queue_work(asus->led_workqueue, &asus->tpd_led_work);
362}
363
364static int read_tpd_led_state(struct asus_wmi *asus)
365{
366 return asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_TOUCHPAD_LED);
367}
368
369static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
370{
371 struct asus_wmi *asus;
372
373 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
374
375 return read_tpd_led_state(asus);
376}
377
378static void kbd_led_update(struct work_struct *work)
379{
380 int ctrl_param = 0;
381 struct asus_wmi *asus;
382
383 asus = container_of(work, struct asus_wmi, kbd_led_work);
384
385 /*
386 * bits 0-2: level
387 * bit 7: light on/off
388 */
389 if (asus->kbd_led_wk > 0)
390 ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F);
391
392 asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL);
393}
394
395static int kbd_led_read(struct asus_wmi *asus, int *level, int *env)
396{
397 int retval;
398
399 /*
400 * bits 0-2: level
401 * bit 7: light on/off
402 * bit 8-10: environment (0: dark, 1: normal, 2: light)
403 * bit 17: status unknown
404 */
405 retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT,
406 0xFFFF);
407
408 /* Unknown status is considered as off */
409 if (retval == 0x8000)
410 retval = 0;
411
412 if (retval >= 0) {
413 if (level)
414 *level = retval & 0x80 ? retval & 0x7F : 0;
415 if (env)
416 *env = (retval >> 8) & 0x7F;
417 retval = 0;
418 }
419
420 return retval;
421}
422
423static void kbd_led_set(struct led_classdev *led_cdev,
424 enum led_brightness value)
425{
426 struct asus_wmi *asus;
427
428 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
429
430 if (value > asus->kbd_led.max_brightness)
431 value = asus->kbd_led.max_brightness;
432 else if (value < 0)
433 value = 0;
434
435 asus->kbd_led_wk = value;
436 queue_work(asus->led_workqueue, &asus->kbd_led_work);
437}
438
439static enum led_brightness kbd_led_get(struct led_classdev *led_cdev)
440{
441 struct asus_wmi *asus;
442 int retval, value;
443
444 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
445
446 retval = kbd_led_read(asus, &value, NULL);
447
448 if (retval < 0)
449 return retval;
450
451 return value;
452}
453
454static void asus_wmi_led_exit(struct asus_wmi *asus)
455{
456 if (asus->tpd_led.dev)
457 led_classdev_unregister(&asus->tpd_led);
458 if (asus->led_workqueue)
459 destroy_workqueue(asus->led_workqueue);
460}
461
462static int asus_wmi_led_init(struct asus_wmi *asus)
463{
464 int rv = 0;
465
466 asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
467 if (!asus->led_workqueue)
468 return -ENOMEM;
469
470 if (read_tpd_led_state(asus) >= 0) {
471 INIT_WORK(&asus->tpd_led_work, tpd_led_update);
472
473 asus->tpd_led.name = "asus::touchpad";
474 asus->tpd_led.brightness_set = tpd_led_set;
475 asus->tpd_led.brightness_get = tpd_led_get;
476 asus->tpd_led.max_brightness = 1;
477
478 rv = led_classdev_register(&asus->platform_device->dev,
479 &asus->tpd_led);
480 if (rv)
481 goto error;
482 }
483
484 if (kbd_led_read(asus, NULL, NULL) >= 0) {
485 INIT_WORK(&asus->kbd_led_work, kbd_led_update);
486
487 asus->kbd_led.name = "asus::kbd_backlight";
488 asus->kbd_led.brightness_set = kbd_led_set;
489 asus->kbd_led.brightness_get = kbd_led_get;
490 asus->kbd_led.max_brightness = 3;
491
492 rv = led_classdev_register(&asus->platform_device->dev,
493 &asus->kbd_led);
494 }
495
496error:
497 if (rv)
498 asus_wmi_led_exit(asus);
499
500 return rv;
501}
502
503
504/*
505 * PCI hotplug (for wlan rfkill)
506 */
507static bool asus_wlan_rfkill_blocked(struct asus_wmi *asus)
508{
509 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
510
511 if (result < 0)
512 return false;
513 return !result;
514}
515
516static void asus_rfkill_hotplug(struct asus_wmi *asus)
517{
518 struct pci_dev *dev;
519 struct pci_bus *bus;
520 bool blocked;
521 bool absent;
522 u32 l;
523
524 mutex_lock(&asus->wmi_lock);
525 blocked = asus_wlan_rfkill_blocked(asus);
526 mutex_unlock(&asus->wmi_lock);
527
528 mutex_lock(&asus->hotplug_lock);
529
530 if (asus->wlan.rfkill)
531 rfkill_set_sw_state(asus->wlan.rfkill, blocked);
532
533 if (asus->hotplug_slot) {
534 bus = pci_find_bus(0, 1);
535 if (!bus) {
536 pr_warn("Unable to find PCI bus 1?\n");
537 goto out_unlock;
538 }
539
540 if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
541 pr_err("Unable to read PCI config space?\n");
542 goto out_unlock;
543 }
544 absent = (l == 0xffffffff);
545
546 if (blocked != absent) {
547 pr_warn("BIOS says wireless lan is %s, "
548 "but the pci device is %s\n",
549 blocked ? "blocked" : "unblocked",
550 absent ? "absent" : "present");
551 pr_warn("skipped wireless hotplug as probably "
552 "inappropriate for this model\n");
553 goto out_unlock;
554 }
555
556 if (!blocked) {
557 dev = pci_get_slot(bus, 0);
558 if (dev) {
559 /* Device already present */
560 pci_dev_put(dev);
561 goto out_unlock;
562 }
563 dev = pci_scan_single_device(bus, 0);
564 if (dev) {
565 pci_bus_assign_resources(bus);
566 if (pci_bus_add_device(dev))
567 pr_err("Unable to hotplug wifi\n");
568 }
569 } else {
570 dev = pci_get_slot(bus, 0);
571 if (dev) {
572 pci_remove_bus_device(dev);
573 pci_dev_put(dev);
574 }
575 }
576 }
577
578out_unlock:
579 mutex_unlock(&asus->hotplug_lock);
580}
581
582static void asus_rfkill_notify(acpi_handle handle, u32 event, void *data)
583{
584 struct asus_wmi *asus = data;
585
586 if (event != ACPI_NOTIFY_BUS_CHECK)
587 return;
588
589 /*
590 * We can't call directly asus_rfkill_hotplug because most
591 * of the time WMBC is still being executed and not reetrant.
592 * There is currently no way to tell ACPICA that we want this
593 * method to be serialized, we schedule a asus_rfkill_hotplug
594 * call later, in a safer context.
595 */
596 queue_work(asus->hotplug_workqueue, &asus->hotplug_work);
597}
598
599static int asus_register_rfkill_notifier(struct asus_wmi *asus, char *node)
600{
601 acpi_status status;
602 acpi_handle handle;
603
604 status = acpi_get_handle(NULL, node, &handle);
605
606 if (ACPI_SUCCESS(status)) {
607 status = acpi_install_notify_handler(handle,
608 ACPI_SYSTEM_NOTIFY,
609 asus_rfkill_notify, asus);
610 if (ACPI_FAILURE(status))
611 pr_warn("Failed to register notify on %s\n", node);
612 } else
613 return -ENODEV;
614
615 return 0;
616}
617
618static void asus_unregister_rfkill_notifier(struct asus_wmi *asus, char *node)
619{
620 acpi_status status = AE_OK;
621 acpi_handle handle;
622
623 status = acpi_get_handle(NULL, node, &handle);
624
625 if (ACPI_SUCCESS(status)) {
626 status = acpi_remove_notify_handler(handle,
627 ACPI_SYSTEM_NOTIFY,
628 asus_rfkill_notify);
629 if (ACPI_FAILURE(status))
630 pr_err("Error removing rfkill notify handler %s\n",
631 node);
632 }
633}
634
635static int asus_get_adapter_status(struct hotplug_slot *hotplug_slot,
636 u8 *value)
637{
638 struct asus_wmi *asus = hotplug_slot->private;
639 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
640
641 if (result < 0)
642 return result;
643
644 *value = !!result;
645 return 0;
646}
647
648static void asus_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot)
649{
650 kfree(hotplug_slot->info);
651 kfree(hotplug_slot);
652}
653
654static struct hotplug_slot_ops asus_hotplug_slot_ops = {
655 .owner = THIS_MODULE,
656 .get_adapter_status = asus_get_adapter_status,
657 .get_power_status = asus_get_adapter_status,
658};
659
660static void asus_hotplug_work(struct work_struct *work)
661{
662 struct asus_wmi *asus;
663
664 asus = container_of(work, struct asus_wmi, hotplug_work);
665 asus_rfkill_hotplug(asus);
666}
667
668static int asus_setup_pci_hotplug(struct asus_wmi *asus)
669{
670 int ret = -ENOMEM;
671 struct pci_bus *bus = pci_find_bus(0, 1);
672
673 if (!bus) {
674 pr_err("Unable to find wifi PCI bus\n");
675 return -ENODEV;
676 }
677
678 asus->hotplug_workqueue =
679 create_singlethread_workqueue("hotplug_workqueue");
680 if (!asus->hotplug_workqueue)
681 goto error_workqueue;
682
683 INIT_WORK(&asus->hotplug_work, asus_hotplug_work);
684
685 asus->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
686 if (!asus->hotplug_slot)
687 goto error_slot;
688
689 asus->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info),
690 GFP_KERNEL);
691 if (!asus->hotplug_slot->info)
692 goto error_info;
693
694 asus->hotplug_slot->private = asus;
695 asus->hotplug_slot->release = &asus_cleanup_pci_hotplug;
696 asus->hotplug_slot->ops = &asus_hotplug_slot_ops;
697 asus_get_adapter_status(asus->hotplug_slot,
698 &asus->hotplug_slot->info->adapter_status);
699
700 ret = pci_hp_register(asus->hotplug_slot, bus, 0, "asus-wifi");
701 if (ret) {
702 pr_err("Unable to register hotplug slot - %d\n", ret);
703 goto error_register;
704 }
705
706 return 0;
707
708error_register:
709 kfree(asus->hotplug_slot->info);
710error_info:
711 kfree(asus->hotplug_slot);
712 asus->hotplug_slot = NULL;
713error_slot:
714 destroy_workqueue(asus->hotplug_workqueue);
715error_workqueue:
716 return ret;
717}
718
719/*
720 * Rfkill devices
721 */
722static int asus_rfkill_set(void *data, bool blocked)
723{
724 struct asus_rfkill *priv = data;
725 u32 ctrl_param = !blocked;
726
727 return asus_wmi_set_devstate(priv->dev_id, ctrl_param, NULL);
728}
729
730static void asus_rfkill_query(struct rfkill *rfkill, void *data)
731{
732 struct asus_rfkill *priv = data;
733 int result;
734
735 result = asus_wmi_get_devstate_simple(priv->asus, priv->dev_id);
736
737 if (result < 0)
738 return;
739
740 rfkill_set_sw_state(priv->rfkill, !result);
741}
742
743static int asus_rfkill_wlan_set(void *data, bool blocked)
744{
745 struct asus_rfkill *priv = data;
746 struct asus_wmi *asus = priv->asus;
747 int ret;
748
749 /*
750 * This handler is enabled only if hotplug is enabled.
751 * In this case, the asus_wmi_set_devstate() will
752 * trigger a wmi notification and we need to wait
753 * this call to finish before being able to call
754 * any wmi method
755 */
756 mutex_lock(&asus->wmi_lock);
757 ret = asus_rfkill_set(data, blocked);
758 mutex_unlock(&asus->wmi_lock);
759 return ret;
760}
761
762static const struct rfkill_ops asus_rfkill_wlan_ops = {
763 .set_block = asus_rfkill_wlan_set,
764 .query = asus_rfkill_query,
765};
766
767static const struct rfkill_ops asus_rfkill_ops = {
768 .set_block = asus_rfkill_set,
769 .query = asus_rfkill_query,
770};
771
772static int asus_new_rfkill(struct asus_wmi *asus,
773 struct asus_rfkill *arfkill,
774 const char *name, enum rfkill_type type, int dev_id)
775{
776 int result = asus_wmi_get_devstate_simple(asus, dev_id);
777 struct rfkill **rfkill = &arfkill->rfkill;
778
779 if (result < 0)
780 return result;
781
782 arfkill->dev_id = dev_id;
783 arfkill->asus = asus;
784
785 if (dev_id == ASUS_WMI_DEVID_WLAN && asus->driver->hotplug_wireless)
786 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
787 &asus_rfkill_wlan_ops, arfkill);
788 else
789 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
790 &asus_rfkill_ops, arfkill);
791
792 if (!*rfkill)
793 return -EINVAL;
794
795 rfkill_init_sw_state(*rfkill, !result);
796 result = rfkill_register(*rfkill);
797 if (result) {
798 rfkill_destroy(*rfkill);
799 *rfkill = NULL;
800 return result;
801 }
802 return 0;
803}
804
805static void asus_wmi_rfkill_exit(struct asus_wmi *asus)
806{
807 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
808 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
809 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
810 if (asus->wlan.rfkill) {
811 rfkill_unregister(asus->wlan.rfkill);
812 rfkill_destroy(asus->wlan.rfkill);
813 asus->wlan.rfkill = NULL;
814 }
815 /*
816 * Refresh pci hotplug in case the rfkill state was changed after
817 * asus_unregister_rfkill_notifier()
818 */
819 asus_rfkill_hotplug(asus);
820 if (asus->hotplug_slot)
821 pci_hp_deregister(asus->hotplug_slot);
822 if (asus->hotplug_workqueue)
823 destroy_workqueue(asus->hotplug_workqueue);
824
825 if (asus->bluetooth.rfkill) {
826 rfkill_unregister(asus->bluetooth.rfkill);
827 rfkill_destroy(asus->bluetooth.rfkill);
828 asus->bluetooth.rfkill = NULL;
829 }
830 if (asus->wimax.rfkill) {
831 rfkill_unregister(asus->wimax.rfkill);
832 rfkill_destroy(asus->wimax.rfkill);
833 asus->wimax.rfkill = NULL;
834 }
835 if (asus->wwan3g.rfkill) {
836 rfkill_unregister(asus->wwan3g.rfkill);
837 rfkill_destroy(asus->wwan3g.rfkill);
838 asus->wwan3g.rfkill = NULL;
839 }
840 if (asus->gps.rfkill) {
841 rfkill_unregister(asus->gps.rfkill);
842 rfkill_destroy(asus->gps.rfkill);
843 asus->gps.rfkill = NULL;
844 }
845 if (asus->uwb.rfkill) {
846 rfkill_unregister(asus->uwb.rfkill);
847 rfkill_destroy(asus->uwb.rfkill);
848 asus->uwb.rfkill = NULL;
849 }
850}
851
852static int asus_wmi_rfkill_init(struct asus_wmi *asus)
853{
854 int result = 0;
855
856 mutex_init(&asus->hotplug_lock);
857 mutex_init(&asus->wmi_lock);
858
859 result = asus_new_rfkill(asus, &asus->wlan, "asus-wlan",
860 RFKILL_TYPE_WLAN, ASUS_WMI_DEVID_WLAN);
861
862 if (result && result != -ENODEV)
863 goto exit;
864
865 result = asus_new_rfkill(asus, &asus->bluetooth,
866 "asus-bluetooth", RFKILL_TYPE_BLUETOOTH,
867 ASUS_WMI_DEVID_BLUETOOTH);
868
869 if (result && result != -ENODEV)
870 goto exit;
871
872 result = asus_new_rfkill(asus, &asus->wimax, "asus-wimax",
873 RFKILL_TYPE_WIMAX, ASUS_WMI_DEVID_WIMAX);
874
875 if (result && result != -ENODEV)
876 goto exit;
877
878 result = asus_new_rfkill(asus, &asus->wwan3g, "asus-wwan3g",
879 RFKILL_TYPE_WWAN, ASUS_WMI_DEVID_WWAN3G);
880
881 if (result && result != -ENODEV)
882 goto exit;
883
884 result = asus_new_rfkill(asus, &asus->gps, "asus-gps",
885 RFKILL_TYPE_GPS, ASUS_WMI_DEVID_GPS);
886
887 if (result && result != -ENODEV)
888 goto exit;
889
890 result = asus_new_rfkill(asus, &asus->uwb, "asus-uwb",
891 RFKILL_TYPE_UWB, ASUS_WMI_DEVID_UWB);
892
893 if (result && result != -ENODEV)
894 goto exit;
895
896 if (!asus->driver->hotplug_wireless)
897 goto exit;
898
899 result = asus_setup_pci_hotplug(asus);
900 /*
901 * If we get -EBUSY then something else is handling the PCI hotplug -
902 * don't fail in this case
903 */
904 if (result == -EBUSY)
905 result = 0;
906
907 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
908 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
909 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
910 /*
911 * Refresh pci hotplug in case the rfkill state was changed during
912 * setup.
913 */
914 asus_rfkill_hotplug(asus);
915
916exit:
917 if (result && result != -ENODEV)
918 asus_wmi_rfkill_exit(asus);
919
920 if (result == -ENODEV)
921 result = 0;
922
923 return result;
924}
925
926/*
927 * Hwmon device
928 */
929static ssize_t asus_hwmon_pwm1(struct device *dev,
930 struct device_attribute *attr,
931 char *buf)
932{
933 struct asus_wmi *asus = dev_get_drvdata(dev);
934 u32 value;
935 int err;
936
937 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
938
939 if (err < 0)
940 return err;
941
942 value &= 0xFF;
943
944 if (value == 1) /* Low Speed */
945 value = 85;
946 else if (value == 2)
947 value = 170;
948 else if (value == 3)
949 value = 255;
950 else if (value != 0) {
951 pr_err("Unknown fan speed %#x", value);
952 value = -1;
953 }
954
955 return sprintf(buf, "%d\n", value);
956}
957
958static ssize_t asus_hwmon_temp1(struct device *dev,
959 struct device_attribute *attr,
960 char *buf)
961{
962 struct asus_wmi *asus = dev_get_drvdata(dev);
963 u32 value;
964 int err;
965
966 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_THERMAL_CTRL, &value);
967
968 if (err < 0)
969 return err;
970
971 value = KELVIN_TO_CELSIUS((value & 0xFFFF)) * 1000;
972
973 return sprintf(buf, "%d\n", value);
974}
975
976static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO, asus_hwmon_pwm1, NULL, 0);
977static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, asus_hwmon_temp1, NULL, 0);
978
979static ssize_t
980show_name(struct device *dev, struct device_attribute *attr, char *buf)
981{
982 return sprintf(buf, "asus\n");
983}
984static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0);
985
986static struct attribute *hwmon_attributes[] = {
987 &sensor_dev_attr_pwm1.dev_attr.attr,
988 &sensor_dev_attr_temp1_input.dev_attr.attr,
989 &sensor_dev_attr_name.dev_attr.attr,
990 NULL
991};
992
993static mode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
994 struct attribute *attr, int idx)
995{
996 struct device *dev = container_of(kobj, struct device, kobj);
997 struct platform_device *pdev = to_platform_device(dev->parent);
998 struct asus_wmi *asus = platform_get_drvdata(pdev);
999 bool ok = true;
1000 int dev_id = -1;
1001 u32 value = ASUS_WMI_UNSUPPORTED_METHOD;
1002
1003 if (attr == &sensor_dev_attr_pwm1.dev_attr.attr)
1004 dev_id = ASUS_WMI_DEVID_FAN_CTRL;
1005 else if (attr == &sensor_dev_attr_temp1_input.dev_attr.attr)
1006 dev_id = ASUS_WMI_DEVID_THERMAL_CTRL;
1007
1008 if (dev_id != -1) {
1009 int err = asus_wmi_get_devstate(asus, dev_id, &value);
1010
1011 if (err < 0)
1012 return 0; /* can't return negative here */
1013 }
1014
1015 if (dev_id == ASUS_WMI_DEVID_FAN_CTRL) {
1016 /*
1017 * We need to find a better way, probably using sfun,
1018 * bits or spec ...
1019 * Currently we disable it if:
1020 * - ASUS_WMI_UNSUPPORTED_METHOD is returned
1021 * - reverved bits are non-zero
1022 * - sfun and presence bit are not set
1023 */
1024 if (value == ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000
1025 || (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT)))
1026 ok = false;
1027 } else if (dev_id == ASUS_WMI_DEVID_THERMAL_CTRL) {
1028 /* If value is zero, something is clearly wrong */
1029 if (value == 0)
1030 ok = false;
1031 }
1032
1033 return ok ? attr->mode : 0;
1034}
1035
1036static struct attribute_group hwmon_attribute_group = {
1037 .is_visible = asus_hwmon_sysfs_is_visible,
1038 .attrs = hwmon_attributes
1039};
1040
1041static void asus_wmi_hwmon_exit(struct asus_wmi *asus)
1042{
1043 struct device *hwmon;
1044
1045 hwmon = asus->hwmon_device;
1046 if (!hwmon)
1047 return;
1048 sysfs_remove_group(&hwmon->kobj, &hwmon_attribute_group);
1049 hwmon_device_unregister(hwmon);
1050 asus->hwmon_device = NULL;
1051}
1052
1053static int asus_wmi_hwmon_init(struct asus_wmi *asus)
1054{
1055 struct device *hwmon;
1056 int result;
1057
1058 hwmon = hwmon_device_register(&asus->platform_device->dev);
1059 if (IS_ERR(hwmon)) {
1060 pr_err("Could not register asus hwmon device\n");
1061 return PTR_ERR(hwmon);
1062 }
1063 dev_set_drvdata(hwmon, asus);
1064 asus->hwmon_device = hwmon;
1065 result = sysfs_create_group(&hwmon->kobj, &hwmon_attribute_group);
1066 if (result)
1067 asus_wmi_hwmon_exit(asus);
1068 return result;
1069}
1070
1071/*
1072 * Backlight
1073 */
1074static int read_backlight_power(struct asus_wmi *asus)
1075{
1076 int ret = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_BACKLIGHT);
1077
1078 if (ret < 0)
1079 return ret;
1080
1081 return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
1082}
1083
1084static int read_brightness_max(struct asus_wmi *asus)
1085{
1086 u32 retval;
1087 int err;
1088
1089 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
1090
1091 if (err < 0)
1092 return err;
1093
1094 retval = retval & ASUS_WMI_DSTS_MAX_BRIGTH_MASK;
1095 retval >>= 8;
1096
1097 if (!retval)
1098 return -ENODEV;
1099
1100 return retval;
1101}
1102
1103static int read_brightness(struct backlight_device *bd)
1104{
1105 struct asus_wmi *asus = bl_get_data(bd);
1106 u32 retval;
1107 int err;
1108
1109 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
1110
1111 if (err < 0)
1112 return err;
1113
1114 return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
1115}
1116
1117static int update_bl_status(struct backlight_device *bd)
1118{
1119 struct asus_wmi *asus = bl_get_data(bd);
1120 u32 ctrl_param;
1121 int power, err;
1122
1123 ctrl_param = bd->props.brightness;
1124
1125 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS,
1126 ctrl_param, NULL);
1127
1128 if (err < 0)
1129 return err;
1130
1131 power = read_backlight_power(asus);
1132 if (power != -ENODEV && bd->props.power != power) {
1133 ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK);
1134 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT,
1135 ctrl_param, NULL);
1136 }
1137 return err;
1138}
1139
1140static const struct backlight_ops asus_wmi_bl_ops = {
1141 .get_brightness = read_brightness,
1142 .update_status = update_bl_status,
1143};
1144
1145static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code)
1146{
1147 struct backlight_device *bd = asus->backlight_device;
1148 int old = bd->props.brightness;
1149 int new = old;
1150
1151 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
1152 new = code - NOTIFY_BRNUP_MIN + 1;
1153 else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
1154 new = code - NOTIFY_BRNDOWN_MIN;
1155
1156 bd->props.brightness = new;
1157 backlight_update_status(bd);
1158 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
1159
1160 return old;
1161}
1162
1163static int asus_wmi_backlight_init(struct asus_wmi *asus)
1164{
1165 struct backlight_device *bd;
1166 struct backlight_properties props;
1167 int max;
1168 int power;
1169
1170 max = read_brightness_max(asus);
1171
1172 if (max == -ENODEV)
1173 max = 0;
1174 else if (max < 0)
1175 return max;
1176
1177 power = read_backlight_power(asus);
1178
1179 if (power == -ENODEV)
1180 power = FB_BLANK_UNBLANK;
1181 else if (power < 0)
1182 return power;
1183
1184 memset(&props, 0, sizeof(struct backlight_properties));
1185 props.type = BACKLIGHT_PLATFORM;
1186 props.max_brightness = max;
1187 bd = backlight_device_register(asus->driver->name,
1188 &asus->platform_device->dev, asus,
1189 &asus_wmi_bl_ops, &props);
1190 if (IS_ERR(bd)) {
1191 pr_err("Could not register backlight device\n");
1192 return PTR_ERR(bd);
1193 }
1194
1195 asus->backlight_device = bd;
1196
1197 bd->props.brightness = read_brightness(bd);
1198 bd->props.power = power;
1199 backlight_update_status(bd);
1200
1201 return 0;
1202}
1203
1204static void asus_wmi_backlight_exit(struct asus_wmi *asus)
1205{
1206 if (asus->backlight_device)
1207 backlight_device_unregister(asus->backlight_device);
1208
1209 asus->backlight_device = NULL;
1210}
1211
1212static void asus_wmi_notify(u32 value, void *context)
1213{
1214 struct asus_wmi *asus = context;
1215 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1216 union acpi_object *obj;
1217 acpi_status status;
1218 int code;
1219 int orig_code;
1220 unsigned int key_value = 1;
1221 bool autorelease = 1;
1222
1223 status = wmi_get_event_data(value, &response);
1224 if (status != AE_OK) {
1225 pr_err("bad event status 0x%x\n", status);
1226 return;
1227 }
1228
1229 obj = (union acpi_object *)response.pointer;
1230
1231 if (!obj || obj->type != ACPI_TYPE_INTEGER)
1232 goto exit;
1233
1234 code = obj->integer.value;
1235 orig_code = code;
1236
1237 if (asus->driver->key_filter) {
1238 asus->driver->key_filter(asus->driver, &code, &key_value,
1239 &autorelease);
1240 if (code == ASUS_WMI_KEY_IGNORE)
1241 goto exit;
1242 }
1243
1244 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
1245 code = NOTIFY_BRNUP_MIN;
1246 else if (code >= NOTIFY_BRNDOWN_MIN &&
1247 code <= NOTIFY_BRNDOWN_MAX)
1248 code = NOTIFY_BRNDOWN_MIN;
1249
1250 if (code == NOTIFY_BRNUP_MIN || code == NOTIFY_BRNDOWN_MIN) {
1251 if (!acpi_video_backlight_support())
1252 asus_wmi_backlight_notify(asus, orig_code);
1253 } else if (!sparse_keymap_report_event(asus->inputdev, code,
1254 key_value, autorelease))
1255 pr_info("Unknown key %x pressed\n", code);
1256
1257exit:
1258 kfree(obj);
1259}
1260
1261/*
1262 * Sys helpers
1263 */
1264static int parse_arg(const char *buf, unsigned long count, int *val)
1265{
1266 if (!count)
1267 return 0;
1268 if (sscanf(buf, "%i", val) != 1)
1269 return -EINVAL;
1270 return count;
1271}
1272
1273static ssize_t store_sys_wmi(struct asus_wmi *asus, int devid,
1274 const char *buf, size_t count)
1275{
1276 u32 retval;
1277 int rv, err, value;
1278
1279 value = asus_wmi_get_devstate_simple(asus, devid);
1280 if (value == -ENODEV) /* Check device presence */
1281 return value;
1282
1283 rv = parse_arg(buf, count, &value);
1284 err = asus_wmi_set_devstate(devid, value, &retval);
1285
1286 if (err < 0)
1287 return err;
1288
1289 return rv;
1290}
1291
1292static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
1293{
1294 int value = asus_wmi_get_devstate_simple(asus, devid);
1295
1296 if (value < 0)
1297 return value;
1298
1299 return sprintf(buf, "%d\n", value);
1300}
1301
1302#define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \
1303 static ssize_t show_##_name(struct device *dev, \
1304 struct device_attribute *attr, \
1305 char *buf) \
1306 { \
1307 struct asus_wmi *asus = dev_get_drvdata(dev); \
1308 \
1309 return show_sys_wmi(asus, _cm, buf); \
1310 } \
1311 static ssize_t store_##_name(struct device *dev, \
1312 struct device_attribute *attr, \
1313 const char *buf, size_t count) \
1314 { \
1315 struct asus_wmi *asus = dev_get_drvdata(dev); \
1316 \
1317 return store_sys_wmi(asus, _cm, buf, count); \
1318 } \
1319 static struct device_attribute dev_attr_##_name = { \
1320 .attr = { \
1321 .name = __stringify(_name), \
1322 .mode = _mode }, \
1323 .show = show_##_name, \
1324 .store = store_##_name, \
1325 }
1326
1327ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD);
1328ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA);
1329ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
1330
1331static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr,
1332 const char *buf, size_t count)
1333{
1334 int value, rv;
1335
1336 if (!count || sscanf(buf, "%i", &value) != 1)
1337 return -EINVAL;
1338 if (value < 0 || value > 2)
1339 return -EINVAL;
1340
1341 rv = asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL);
1342 if (rv < 0)
1343 return rv;
1344
1345 return count;
1346}
1347
1348static DEVICE_ATTR(cpufv, S_IRUGO | S_IWUSR, NULL, store_cpufv);
1349
1350static struct attribute *platform_attributes[] = {
1351 &dev_attr_cpufv.attr,
1352 &dev_attr_camera.attr,
1353 &dev_attr_cardr.attr,
1354 &dev_attr_touchpad.attr,
1355 NULL
1356};
1357
1358static mode_t asus_sysfs_is_visible(struct kobject *kobj,
1359 struct attribute *attr, int idx)
1360{
1361 struct device *dev = container_of(kobj, struct device, kobj);
1362 struct platform_device *pdev = to_platform_device(dev);
1363 struct asus_wmi *asus = platform_get_drvdata(pdev);
1364 bool ok = true;
1365 int devid = -1;
1366
1367 if (attr == &dev_attr_camera.attr)
1368 devid = ASUS_WMI_DEVID_CAMERA;
1369 else if (attr == &dev_attr_cardr.attr)
1370 devid = ASUS_WMI_DEVID_CARDREADER;
1371 else if (attr == &dev_attr_touchpad.attr)
1372 devid = ASUS_WMI_DEVID_TOUCHPAD;
1373
1374 if (devid != -1)
1375 ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
1376
1377 return ok ? attr->mode : 0;
1378}
1379
1380static struct attribute_group platform_attribute_group = {
1381 .is_visible = asus_sysfs_is_visible,
1382 .attrs = platform_attributes
1383};
1384
1385static void asus_wmi_sysfs_exit(struct platform_device *device)
1386{
1387 sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
1388}
1389
1390static int asus_wmi_sysfs_init(struct platform_device *device)
1391{
1392 return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
1393}
1394
1395/*
1396 * Platform device
1397 */
1398static int asus_wmi_platform_init(struct asus_wmi *asus)
1399{
1400 int rv;
1401
1402 /* INIT enable hotkeys on some models */
1403 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv))
1404 pr_info("Initialization: %#x", rv);
1405
1406 /* We don't know yet what to do with this version... */
1407 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) {
1408 pr_info("BIOS WMI version: %d.%d", rv >> 16, rv & 0xFF);
1409 asus->spec = rv;
1410 }
1411
1412 /*
1413 * The SFUN method probably allows the original driver to get the list
1414 * of features supported by a given model. For now, 0x0100 or 0x0800
1415 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
1416 * The significance of others is yet to be found.
1417 */
1418 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) {
1419 pr_info("SFUN value: %#x", rv);
1420 asus->sfun = rv;
1421 }
1422
1423 /*
1424 * Eee PC and Notebooks seems to have different method_id for DSTS,
1425 * but it may also be related to the BIOS's SPEC.
1426 * Note, on most Eeepc, there is no way to check if a method exist
1427 * or note, while on notebooks, they returns 0xFFFFFFFE on failure,
1428 * but once again, SPEC may probably be used for that kind of things.
1429 */
1430 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS, 0, 0, NULL))
1431 asus->dsts_id = ASUS_WMI_METHODID_DSTS;
1432 else if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS2, 0, 0, NULL))
1433 asus->dsts_id = ASUS_WMI_METHODID_DSTS2;
1434
1435 if (!asus->dsts_id) {
1436 pr_err("Can't find DSTS");
1437 return -ENODEV;
1438 }
1439
1440 /* CWAP allow to define the behavior of the Fn+F2 key,
1441 * this method doesn't seems to be present on Eee PCs */
1442 if (asus->driver->wapf >= 0)
1443 asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP,
1444 asus->driver->wapf, NULL);
1445
1446 return asus_wmi_sysfs_init(asus->platform_device);
1447}
1448
1449static void asus_wmi_platform_exit(struct asus_wmi *asus)
1450{
1451 asus_wmi_sysfs_exit(asus->platform_device);
1452}
1453
1454/*
1455 * debugfs
1456 */
1457struct asus_wmi_debugfs_node {
1458 struct asus_wmi *asus;
1459 char *name;
1460 int (*show) (struct seq_file *m, void *data);
1461};
1462
1463static int show_dsts(struct seq_file *m, void *data)
1464{
1465 struct asus_wmi *asus = m->private;
1466 int err;
1467 u32 retval = -1;
1468
1469 err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
1470
1471 if (err < 0)
1472 return err;
1473
1474 seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval);
1475
1476 return 0;
1477}
1478
1479static int show_devs(struct seq_file *m, void *data)
1480{
1481 struct asus_wmi *asus = m->private;
1482 int err;
1483 u32 retval = -1;
1484
1485 err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
1486 &retval);
1487
1488 if (err < 0)
1489 return err;
1490
1491 seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id,
1492 asus->debug.ctrl_param, retval);
1493
1494 return 0;
1495}
1496
1497static int show_call(struct seq_file *m, void *data)
1498{
1499 struct asus_wmi *asus = m->private;
1500 struct bios_args args = {
1501 .arg0 = asus->debug.dev_id,
1502 .arg1 = asus->debug.ctrl_param,
1503 };
1504 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
1505 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1506 union acpi_object *obj;
1507 acpi_status status;
1508
1509 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
1510 1, asus->debug.method_id,
1511 &input, &output);
1512
1513 if (ACPI_FAILURE(status))
1514 return -EIO;
1515
1516 obj = (union acpi_object *)output.pointer;
1517 if (obj && obj->type == ACPI_TYPE_INTEGER)
1518 seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id,
1519 asus->debug.dev_id, asus->debug.ctrl_param,
1520 (u32) obj->integer.value);
1521 else
1522 seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id,
1523 asus->debug.dev_id, asus->debug.ctrl_param,
1524 obj ? obj->type : -1);
1525
1526 kfree(obj);
1527
1528 return 0;
1529}
1530
1531static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = {
1532 {NULL, "devs", show_devs},
1533 {NULL, "dsts", show_dsts},
1534 {NULL, "call", show_call},
1535};
1536
1537static int asus_wmi_debugfs_open(struct inode *inode, struct file *file)
1538{
1539 struct asus_wmi_debugfs_node *node = inode->i_private;
1540
1541 return single_open(file, node->show, node->asus);
1542}
1543
1544static const struct file_operations asus_wmi_debugfs_io_ops = {
1545 .owner = THIS_MODULE,
1546 .open = asus_wmi_debugfs_open,
1547 .read = seq_read,
1548 .llseek = seq_lseek,
1549 .release = single_release,
1550};
1551
1552static void asus_wmi_debugfs_exit(struct asus_wmi *asus)
1553{
1554 debugfs_remove_recursive(asus->debug.root);
1555}
1556
1557static int asus_wmi_debugfs_init(struct asus_wmi *asus)
1558{
1559 struct dentry *dent;
1560 int i;
1561
1562 asus->debug.root = debugfs_create_dir(asus->driver->name, NULL);
1563 if (!asus->debug.root) {
1564 pr_err("failed to create debugfs directory");
1565 goto error_debugfs;
1566 }
1567
1568 dent = debugfs_create_x32("method_id", S_IRUGO | S_IWUSR,
1569 asus->debug.root, &asus->debug.method_id);
1570 if (!dent)
1571 goto error_debugfs;
1572
1573 dent = debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR,
1574 asus->debug.root, &asus->debug.dev_id);
1575 if (!dent)
1576 goto error_debugfs;
1577
1578 dent = debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR,
1579 asus->debug.root, &asus->debug.ctrl_param);
1580 if (!dent)
1581 goto error_debugfs;
1582
1583 for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) {
1584 struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i];
1585
1586 node->asus = asus;
1587 dent = debugfs_create_file(node->name, S_IFREG | S_IRUGO,
1588 asus->debug.root, node,
1589 &asus_wmi_debugfs_io_ops);
1590 if (!dent) {
1591 pr_err("failed to create debug file: %s\n", node->name);
1592 goto error_debugfs;
1593 }
1594 }
1595
1596 return 0;
1597
1598error_debugfs:
1599 asus_wmi_debugfs_exit(asus);
1600 return -ENOMEM;
1601}
1602
1603/*
1604 * WMI Driver
1605 */
1606static int asus_wmi_add(struct platform_device *pdev)
1607{
1608 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
1609 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
1610 struct asus_wmi *asus;
1611 acpi_status status;
1612 int err;
1613
1614 asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL);
1615 if (!asus)
1616 return -ENOMEM;
1617
1618 asus->driver = wdrv;
1619 asus->platform_device = pdev;
1620 wdrv->platform_device = pdev;
1621 platform_set_drvdata(asus->platform_device, asus);
1622
1623 if (wdrv->quirks)
1624 wdrv->quirks(asus->driver);
1625
1626 err = asus_wmi_platform_init(asus);
1627 if (err)
1628 goto fail_platform;
1629
1630 err = asus_wmi_input_init(asus);
1631 if (err)
1632 goto fail_input;
1633
1634 err = asus_wmi_hwmon_init(asus);
1635 if (err)
1636 goto fail_hwmon;
1637
1638 err = asus_wmi_led_init(asus);
1639 if (err)
1640 goto fail_leds;
1641
1642 err = asus_wmi_rfkill_init(asus);
1643 if (err)
1644 goto fail_rfkill;
1645
1646 if (!acpi_video_backlight_support()) {
1647 err = asus_wmi_backlight_init(asus);
1648 if (err && err != -ENODEV)
1649 goto fail_backlight;
1650 } else
1651 pr_info("Backlight controlled by ACPI video driver\n");
1652
1653 status = wmi_install_notify_handler(asus->driver->event_guid,
1654 asus_wmi_notify, asus);
1655 if (ACPI_FAILURE(status)) {
1656 pr_err("Unable to register notify handler - %d\n", status);
1657 err = -ENODEV;
1658 goto fail_wmi_handler;
1659 }
1660
1661 err = asus_wmi_debugfs_init(asus);
1662 if (err)
1663 goto fail_debugfs;
1664
1665 return 0;
1666
1667fail_debugfs:
1668 wmi_remove_notify_handler(asus->driver->event_guid);
1669fail_wmi_handler:
1670 asus_wmi_backlight_exit(asus);
1671fail_backlight:
1672 asus_wmi_rfkill_exit(asus);
1673fail_rfkill:
1674 asus_wmi_led_exit(asus);
1675fail_leds:
1676 asus_wmi_hwmon_exit(asus);
1677fail_hwmon:
1678 asus_wmi_input_exit(asus);
1679fail_input:
1680 asus_wmi_platform_exit(asus);
1681fail_platform:
1682 kfree(asus);
1683 return err;
1684}
1685
1686static int asus_wmi_remove(struct platform_device *device)
1687{
1688 struct asus_wmi *asus;
1689
1690 asus = platform_get_drvdata(device);
1691 wmi_remove_notify_handler(asus->driver->event_guid);
1692 asus_wmi_backlight_exit(asus);
1693 asus_wmi_input_exit(asus);
1694 asus_wmi_hwmon_exit(asus);
1695 asus_wmi_led_exit(asus);
1696 asus_wmi_rfkill_exit(asus);
1697 asus_wmi_debugfs_exit(asus);
1698 asus_wmi_platform_exit(asus);
1699
1700 kfree(asus);
1701 return 0;
1702}
1703
1704/*
1705 * Platform driver - hibernate/resume callbacks
1706 */
1707static int asus_hotk_thaw(struct device *device)
1708{
1709 struct asus_wmi *asus = dev_get_drvdata(device);
1710
1711 if (asus->wlan.rfkill) {
1712 bool wlan;
1713
1714 /*
1715 * Work around bios bug - acpi _PTS turns off the wireless led
1716 * during suspend. Normally it restores it on resume, but
1717 * we should kick it ourselves in case hibernation is aborted.
1718 */
1719 wlan = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
1720 asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL);
1721 }
1722
1723 return 0;
1724}
1725
1726static int asus_hotk_restore(struct device *device)
1727{
1728 struct asus_wmi *asus = dev_get_drvdata(device);
1729 int bl;
1730
1731 /* Refresh both wlan rfkill state and pci hotplug */
1732 if (asus->wlan.rfkill)
1733 asus_rfkill_hotplug(asus);
1734
1735 if (asus->bluetooth.rfkill) {
1736 bl = !asus_wmi_get_devstate_simple(asus,
1737 ASUS_WMI_DEVID_BLUETOOTH);
1738 rfkill_set_sw_state(asus->bluetooth.rfkill, bl);
1739 }
1740 if (asus->wimax.rfkill) {
1741 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WIMAX);
1742 rfkill_set_sw_state(asus->wimax.rfkill, bl);
1743 }
1744 if (asus->wwan3g.rfkill) {
1745 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WWAN3G);
1746 rfkill_set_sw_state(asus->wwan3g.rfkill, bl);
1747 }
1748 if (asus->gps.rfkill) {
1749 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPS);
1750 rfkill_set_sw_state(asus->gps.rfkill, bl);
1751 }
1752 if (asus->uwb.rfkill) {
1753 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_UWB);
1754 rfkill_set_sw_state(asus->uwb.rfkill, bl);
1755 }
1756
1757 return 0;
1758}
1759
1760static const struct dev_pm_ops asus_pm_ops = {
1761 .thaw = asus_hotk_thaw,
1762 .restore = asus_hotk_restore,
1763};
1764
1765static int asus_wmi_probe(struct platform_device *pdev)
1766{
1767 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
1768 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
1769 int ret;
1770
1771 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
1772 pr_warn("Management GUID not found\n");
1773 return -ENODEV;
1774 }
1775
1776 if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) {
1777 pr_warn("Event GUID not found\n");
1778 return -ENODEV;
1779 }
1780
1781 if (wdrv->probe) {
1782 ret = wdrv->probe(pdev);
1783 if (ret)
1784 return ret;
1785 }
1786
1787 return asus_wmi_add(pdev);
1788}
1789
1790static bool used;
1791
1792int __init_or_module asus_wmi_register_driver(struct asus_wmi_driver *driver)
1793{
1794 struct platform_driver *platform_driver;
1795 struct platform_device *platform_device;
1796
1797 if (used)
1798 return -EBUSY;
1799
1800 platform_driver = &driver->platform_driver;
1801 platform_driver->remove = asus_wmi_remove;
1802 platform_driver->driver.owner = driver->owner;
1803 platform_driver->driver.name = driver->name;
1804 platform_driver->driver.pm = &asus_pm_ops;
1805
1806 platform_device = platform_create_bundle(platform_driver,
1807 asus_wmi_probe,
1808 NULL, 0, NULL, 0);
1809 if (IS_ERR(platform_device))
1810 return PTR_ERR(platform_device);
1811
1812 used = true;
1813 return 0;
1814}
1815EXPORT_SYMBOL_GPL(asus_wmi_register_driver);
1816
1817void asus_wmi_unregister_driver(struct asus_wmi_driver *driver)
1818{
1819 platform_device_unregister(driver->platform_device);
1820 platform_driver_unregister(&driver->platform_driver);
1821 used = false;
1822}
1823EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver);
1824
1825static int __init asus_wmi_init(void)
1826{
1827 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
1828 pr_info("Asus Management GUID not found");
1829 return -ENODEV;
1830 }
1831
1832 pr_info("ASUS WMI generic driver loaded");
1833 return 0;
1834}
1835
1836static void __exit asus_wmi_exit(void)
1837{
1838 pr_info("ASUS WMI generic driver unloaded");
1839}
1840
1841module_init(asus_wmi_init);
1842module_exit(asus_wmi_exit);
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Asus PC WMI hotkey driver
4 *
5 * Copyright(C) 2010 Intel Corporation.
6 * Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com>
7 *
8 * Portions based on wistron_btns.c:
9 * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
10 * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
11 * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
12 */
13
14#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
15
16#include <linux/acpi.h>
17#include <linux/backlight.h>
18#include <linux/debugfs.h>
19#include <linux/delay.h>
20#include <linux/dmi.h>
21#include <linux/hwmon.h>
22#include <linux/hwmon-sysfs.h>
23#include <linux/init.h>
24#include <linux/input.h>
25#include <linux/input/sparse-keymap.h>
26#include <linux/kernel.h>
27#include <linux/leds.h>
28#include <linux/minmax.h>
29#include <linux/module.h>
30#include <linux/pci.h>
31#include <linux/pci_hotplug.h>
32#include <linux/platform_data/x86/asus-wmi.h>
33#include <linux/platform_device.h>
34#include <linux/platform_profile.h>
35#include <linux/power_supply.h>
36#include <linux/rfkill.h>
37#include <linux/seq_file.h>
38#include <linux/slab.h>
39#include <linux/types.h>
40#include <linux/units.h>
41
42#include <acpi/battery.h>
43#include <acpi/video.h>
44
45#include "asus-wmi.h"
46
47MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>");
48MODULE_AUTHOR("Yong Wang <yong.y.wang@intel.com>");
49MODULE_DESCRIPTION("Asus Generic WMI Driver");
50MODULE_LICENSE("GPL");
51
52static bool fnlock_default = true;
53module_param(fnlock_default, bool, 0444);
54
55#define to_asus_wmi_driver(pdrv) \
56 (container_of((pdrv), struct asus_wmi_driver, platform_driver))
57
58#define ASUS_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66"
59
60#define NOTIFY_BRNUP_MIN 0x11
61#define NOTIFY_BRNUP_MAX 0x1f
62#define NOTIFY_BRNDOWN_MIN 0x20
63#define NOTIFY_BRNDOWN_MAX 0x2e
64#define NOTIFY_FNLOCK_TOGGLE 0x4e
65#define NOTIFY_KBD_DOCK_CHANGE 0x75
66#define NOTIFY_KBD_BRTUP 0xc4
67#define NOTIFY_KBD_BRTDWN 0xc5
68#define NOTIFY_KBD_BRTTOGGLE 0xc7
69#define NOTIFY_KBD_FBM 0x99
70#define NOTIFY_KBD_TTP 0xae
71#define NOTIFY_LID_FLIP 0xfa
72#define NOTIFY_LID_FLIP_ROG 0xbd
73
74#define ASUS_WMI_FNLOCK_BIOS_DISABLED BIT(0)
75
76#define ASUS_MID_FAN_DESC "mid_fan"
77#define ASUS_GPU_FAN_DESC "gpu_fan"
78#define ASUS_FAN_DESC "cpu_fan"
79#define ASUS_FAN_MFUN 0x13
80#define ASUS_FAN_SFUN_READ 0x06
81#define ASUS_FAN_SFUN_WRITE 0x07
82
83/* Based on standard hwmon pwmX_enable values */
84#define ASUS_FAN_CTRL_FULLSPEED 0
85#define ASUS_FAN_CTRL_MANUAL 1
86#define ASUS_FAN_CTRL_AUTO 2
87
88#define ASUS_FAN_BOOST_MODE_NORMAL 0
89#define ASUS_FAN_BOOST_MODE_OVERBOOST 1
90#define ASUS_FAN_BOOST_MODE_OVERBOOST_MASK 0x01
91#define ASUS_FAN_BOOST_MODE_SILENT 2
92#define ASUS_FAN_BOOST_MODE_SILENT_MASK 0x02
93#define ASUS_FAN_BOOST_MODES_MASK 0x03
94
95#define ASUS_THROTTLE_THERMAL_POLICY_DEFAULT 0
96#define ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST 1
97#define ASUS_THROTTLE_THERMAL_POLICY_SILENT 2
98
99#define ASUS_THROTTLE_THERMAL_POLICY_DEFAULT_VIVO 0
100#define ASUS_THROTTLE_THERMAL_POLICY_SILENT_VIVO 1
101#define ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST_VIVO 2
102
103#define PLATFORM_PROFILE_MAX 2
104
105#define USB_INTEL_XUSB2PR 0xD0
106#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31
107
108#define ASUS_ACPI_UID_ASUSWMI "ASUSWMI"
109
110#define WMI_EVENT_MASK 0xFFFF
111
112#define FAN_CURVE_POINTS 8
113#define FAN_CURVE_BUF_LEN 32
114#define FAN_CURVE_DEV_CPU 0x00
115#define FAN_CURVE_DEV_GPU 0x01
116#define FAN_CURVE_DEV_MID 0x02
117/* Mask to determine if setting temperature or percentage */
118#define FAN_CURVE_PWM_MASK 0x04
119
120/* Limits for tunables available on ASUS ROG laptops */
121#define PPT_TOTAL_MIN 5
122#define PPT_TOTAL_MAX 250
123#define PPT_CPU_MIN 5
124#define PPT_CPU_MAX 130
125#define NVIDIA_BOOST_MIN 5
126#define NVIDIA_BOOST_MAX 25
127#define NVIDIA_TEMP_MIN 75
128#define NVIDIA_TEMP_MAX 87
129
130#define ASUS_SCREENPAD_BRIGHT_MIN 20
131#define ASUS_SCREENPAD_BRIGHT_MAX 255
132#define ASUS_SCREENPAD_BRIGHT_DEFAULT 60
133
134#define ASUS_MINI_LED_MODE_MASK 0x03
135/* Standard modes for devices with only on/off */
136#define ASUS_MINI_LED_OFF 0x00
137#define ASUS_MINI_LED_ON 0x01
138/* New mode on some devices, define here to clarify remapping later */
139#define ASUS_MINI_LED_STRONG_MODE 0x02
140/* New modes for devices with 3 mini-led mode types */
141#define ASUS_MINI_LED_2024_WEAK 0x00
142#define ASUS_MINI_LED_2024_STRONG 0x01
143#define ASUS_MINI_LED_2024_OFF 0x02
144
145/* Controls the power state of the USB0 hub on ROG Ally which input is on */
146#define ASUS_USB0_PWR_EC0_CSEE "\\_SB.PCI0.SBRG.EC0.CSEE"
147/* 300ms so far seems to produce a reliable result on AC and battery */
148#define ASUS_USB0_PWR_EC0_CSEE_WAIT 1500
149
150static const char * const ashs_ids[] = { "ATK4001", "ATK4002", NULL };
151
152static int throttle_thermal_policy_write(struct asus_wmi *);
153
154static const struct dmi_system_id asus_ally_mcu_quirk[] = {
155 {
156 .matches = {
157 DMI_MATCH(DMI_BOARD_NAME, "RC71L"),
158 },
159 },
160 {
161 .matches = {
162 DMI_MATCH(DMI_BOARD_NAME, "RC72L"),
163 },
164 },
165 { },
166};
167
168static bool ashs_present(void)
169{
170 int i = 0;
171 while (ashs_ids[i]) {
172 if (acpi_dev_found(ashs_ids[i++]))
173 return true;
174 }
175 return false;
176}
177
178struct bios_args {
179 u32 arg0;
180 u32 arg1;
181 u32 arg2; /* At least TUF Gaming series uses 3 dword input buffer. */
182 u32 arg3;
183 u32 arg4; /* Some ROG laptops require a full 5 input args */
184 u32 arg5;
185} __packed;
186
187/*
188 * Struct that's used for all methods called via AGFN. Naming is
189 * identically to the AML code.
190 */
191struct agfn_args {
192 u16 mfun; /* probably "Multi-function" to be called */
193 u16 sfun; /* probably "Sub-function" to be called */
194 u16 len; /* size of the hole struct, including subfunction fields */
195 u8 stas; /* not used by now */
196 u8 err; /* zero on success */
197} __packed;
198
199/* struct used for calling fan read and write methods */
200struct agfn_fan_args {
201 struct agfn_args agfn; /* common fields */
202 u8 fan; /* fan number: 0: set auto mode 1: 1st fan */
203 u32 speed; /* read: RPM/100 - write: 0-255 */
204} __packed;
205
206/*
207 * <platform>/ - debugfs root directory
208 * dev_id - current dev_id
209 * ctrl_param - current ctrl_param
210 * method_id - current method_id
211 * devs - call DEVS(dev_id, ctrl_param) and print result
212 * dsts - call DSTS(dev_id) and print result
213 * call - call method_id(dev_id, ctrl_param) and print result
214 */
215struct asus_wmi_debug {
216 struct dentry *root;
217 u32 method_id;
218 u32 dev_id;
219 u32 ctrl_param;
220};
221
222struct asus_rfkill {
223 struct asus_wmi *asus;
224 struct rfkill *rfkill;
225 u32 dev_id;
226};
227
228enum fan_type {
229 FAN_TYPE_NONE = 0,
230 FAN_TYPE_AGFN, /* deprecated on newer platforms */
231 FAN_TYPE_SPEC83, /* starting in Spec 8.3, use CPU_FAN_CTRL */
232};
233
234struct fan_curve_data {
235 bool enabled;
236 u32 device_id;
237 u8 temps[FAN_CURVE_POINTS];
238 u8 percents[FAN_CURVE_POINTS];
239};
240
241struct asus_wmi {
242 int dsts_id;
243 int spec;
244 int sfun;
245
246 struct input_dev *inputdev;
247 struct backlight_device *backlight_device;
248 struct backlight_device *screenpad_backlight_device;
249 struct platform_device *platform_device;
250
251 struct led_classdev wlan_led;
252 int wlan_led_wk;
253 struct led_classdev tpd_led;
254 int tpd_led_wk;
255 struct led_classdev kbd_led;
256 int kbd_led_wk;
257 struct led_classdev lightbar_led;
258 int lightbar_led_wk;
259 struct led_classdev micmute_led;
260 struct led_classdev camera_led;
261 struct workqueue_struct *led_workqueue;
262 struct work_struct tpd_led_work;
263 struct work_struct wlan_led_work;
264 struct work_struct lightbar_led_work;
265
266 struct asus_rfkill wlan;
267 struct asus_rfkill bluetooth;
268 struct asus_rfkill wimax;
269 struct asus_rfkill wwan3g;
270 struct asus_rfkill gps;
271 struct asus_rfkill uwb;
272
273 int tablet_switch_event_code;
274 u32 tablet_switch_dev_id;
275 bool tablet_switch_inverted;
276
277 /* The ROG Ally device requires the MCU USB device be disconnected before suspend */
278 bool ally_mcu_usb_switch;
279
280 enum fan_type fan_type;
281 enum fan_type gpu_fan_type;
282 enum fan_type mid_fan_type;
283 int fan_pwm_mode;
284 int gpu_fan_pwm_mode;
285 int mid_fan_pwm_mode;
286 int agfn_pwm;
287
288 bool fan_boost_mode_available;
289 u8 fan_boost_mode_mask;
290 u8 fan_boost_mode;
291
292 bool egpu_enable_available;
293 bool dgpu_disable_available;
294 u32 gpu_mux_dev;
295
296 /* Tunables provided by ASUS for gaming laptops */
297 u32 ppt_pl2_sppt;
298 u32 ppt_pl1_spl;
299 u32 ppt_apu_sppt;
300 u32 ppt_platform_sppt;
301 u32 ppt_fppt;
302 u32 nv_dynamic_boost;
303 u32 nv_temp_target;
304
305 u32 kbd_rgb_dev;
306 bool kbd_rgb_state_available;
307
308 u8 throttle_thermal_policy_mode;
309 u32 throttle_thermal_policy_dev;
310
311 bool cpu_fan_curve_available;
312 bool gpu_fan_curve_available;
313 bool mid_fan_curve_available;
314 struct fan_curve_data custom_fan_curves[3];
315
316 struct platform_profile_handler platform_profile_handler;
317 bool platform_profile_support;
318
319 // The RSOC controls the maximum charging percentage.
320 bool battery_rsoc_available;
321
322 bool panel_overdrive_available;
323 u32 mini_led_dev_id;
324
325 struct hotplug_slot hotplug_slot;
326 struct mutex hotplug_lock;
327 struct mutex wmi_lock;
328 struct workqueue_struct *hotplug_workqueue;
329 struct work_struct hotplug_work;
330
331 bool fnlock_locked;
332
333 struct asus_wmi_debug debug;
334
335 struct asus_wmi_driver *driver;
336};
337
338/* WMI ************************************************************************/
339
340static int asus_wmi_evaluate_method3(u32 method_id,
341 u32 arg0, u32 arg1, u32 arg2, u32 *retval)
342{
343 struct bios_args args = {
344 .arg0 = arg0,
345 .arg1 = arg1,
346 .arg2 = arg2,
347 };
348 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
349 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
350 acpi_status status;
351 union acpi_object *obj;
352 u32 tmp = 0;
353
354 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
355 &input, &output);
356
357 pr_debug("%s called (0x%08x) with args: 0x%08x, 0x%08x, 0x%08x\n",
358 __func__, method_id, arg0, arg1, arg2);
359 if (ACPI_FAILURE(status)) {
360 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n",
361 __func__, method_id, arg0, -EIO);
362 return -EIO;
363 }
364
365 obj = (union acpi_object *)output.pointer;
366 if (obj && obj->type == ACPI_TYPE_INTEGER)
367 tmp = (u32) obj->integer.value;
368
369 pr_debug("Result: 0x%08x\n", tmp);
370 if (retval)
371 *retval = tmp;
372
373 kfree(obj);
374
375 if (tmp == ASUS_WMI_UNSUPPORTED_METHOD) {
376 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n",
377 __func__, method_id, arg0, -ENODEV);
378 return -ENODEV;
379 }
380
381 return 0;
382}
383
384int asus_wmi_evaluate_method(u32 method_id, u32 arg0, u32 arg1, u32 *retval)
385{
386 return asus_wmi_evaluate_method3(method_id, arg0, arg1, 0, retval);
387}
388EXPORT_SYMBOL_GPL(asus_wmi_evaluate_method);
389
390static int asus_wmi_evaluate_method5(u32 method_id,
391 u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4, u32 *retval)
392{
393 struct bios_args args = {
394 .arg0 = arg0,
395 .arg1 = arg1,
396 .arg2 = arg2,
397 .arg3 = arg3,
398 .arg4 = arg4,
399 };
400 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
401 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
402 acpi_status status;
403 union acpi_object *obj;
404 u32 tmp = 0;
405
406 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
407 &input, &output);
408
409 pr_debug("%s called (0x%08x) with args: 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x\n",
410 __func__, method_id, arg0, arg1, arg2, arg3, arg4);
411 if (ACPI_FAILURE(status)) {
412 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n",
413 __func__, method_id, arg0, -EIO);
414 return -EIO;
415 }
416
417 obj = (union acpi_object *)output.pointer;
418 if (obj && obj->type == ACPI_TYPE_INTEGER)
419 tmp = (u32) obj->integer.value;
420
421 pr_debug("Result: %x\n", tmp);
422 if (retval)
423 *retval = tmp;
424
425 kfree(obj);
426
427 if (tmp == ASUS_WMI_UNSUPPORTED_METHOD) {
428 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n",
429 __func__, method_id, arg0, -ENODEV);
430 return -ENODEV;
431 }
432
433 return 0;
434}
435
436/*
437 * Returns as an error if the method output is not a buffer. Typically this
438 * means that the method called is unsupported.
439 */
440static int asus_wmi_evaluate_method_buf(u32 method_id,
441 u32 arg0, u32 arg1, u8 *ret_buffer, size_t size)
442{
443 struct bios_args args = {
444 .arg0 = arg0,
445 .arg1 = arg1,
446 .arg2 = 0,
447 };
448 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
449 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
450 acpi_status status;
451 union acpi_object *obj;
452 int err = 0;
453
454 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
455 &input, &output);
456
457 pr_debug("%s called (0x%08x) with args: 0x%08x, 0x%08x\n",
458 __func__, method_id, arg0, arg1);
459 if (ACPI_FAILURE(status)) {
460 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n",
461 __func__, method_id, arg0, -EIO);
462 return -EIO;
463 }
464
465 obj = (union acpi_object *)output.pointer;
466
467 switch (obj->type) {
468 case ACPI_TYPE_BUFFER:
469 if (obj->buffer.length > size) {
470 err = -ENOSPC;
471 break;
472 }
473 if (obj->buffer.length == 0) {
474 err = -ENODATA;
475 break;
476 }
477
478 memcpy(ret_buffer, obj->buffer.pointer, obj->buffer.length);
479 break;
480 case ACPI_TYPE_INTEGER:
481 err = (u32)obj->integer.value;
482
483 if (err == ASUS_WMI_UNSUPPORTED_METHOD)
484 err = -ENODEV;
485 /*
486 * At least one method returns a 0 with no buffer if no arg
487 * is provided, such as ASUS_WMI_DEVID_CPU_FAN_CURVE
488 */
489 if (err == 0)
490 err = -ENODATA;
491 break;
492 default:
493 err = -ENODATA;
494 break;
495 }
496
497 kfree(obj);
498
499 if (err) {
500 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n",
501 __func__, method_id, arg0, err);
502 return err;
503 }
504
505 return 0;
506}
507
508static int asus_wmi_evaluate_method_agfn(const struct acpi_buffer args)
509{
510 struct acpi_buffer input;
511 u64 phys_addr;
512 u32 retval;
513 u32 status;
514
515 /*
516 * Copy to dma capable address otherwise memory corruption occurs as
517 * bios has to be able to access it.
518 */
519 input.pointer = kmemdup(args.pointer, args.length, GFP_DMA | GFP_KERNEL);
520 input.length = args.length;
521 if (!input.pointer)
522 return -ENOMEM;
523 phys_addr = virt_to_phys(input.pointer);
524
525 status = asus_wmi_evaluate_method(ASUS_WMI_METHODID_AGFN,
526 phys_addr, 0, &retval);
527 if (!status)
528 memcpy(args.pointer, input.pointer, args.length);
529
530 kfree(input.pointer);
531 if (status)
532 return -ENXIO;
533
534 return retval;
535}
536
537static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval)
538{
539 int err;
540
541 err = asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval);
542
543 if (err)
544 return err;
545
546 if (*retval == ~0)
547 return -ENODEV;
548
549 return 0;
550}
551
552static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
553 u32 *retval)
554{
555 return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS, dev_id,
556 ctrl_param, retval);
557}
558
559/* Helper for special devices with magic return codes */
560static int asus_wmi_get_devstate_bits(struct asus_wmi *asus,
561 u32 dev_id, u32 mask)
562{
563 u32 retval = 0;
564 int err;
565
566 err = asus_wmi_get_devstate(asus, dev_id, &retval);
567 if (err < 0)
568 return err;
569
570 if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT))
571 return -ENODEV;
572
573 if (mask == ASUS_WMI_DSTS_STATUS_BIT) {
574 if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT)
575 return -ENODEV;
576 }
577
578 return retval & mask;
579}
580
581static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id)
582{
583 return asus_wmi_get_devstate_bits(asus, dev_id,
584 ASUS_WMI_DSTS_STATUS_BIT);
585}
586
587static bool asus_wmi_dev_is_present(struct asus_wmi *asus, u32 dev_id)
588{
589 u32 retval;
590 int status = asus_wmi_get_devstate(asus, dev_id, &retval);
591 pr_debug("%s called (0x%08x), retval: 0x%08x\n", __func__, dev_id, retval);
592
593 return status == 0 && (retval & ASUS_WMI_DSTS_PRESENCE_BIT);
594}
595
596/* Input **********************************************************************/
597static void asus_wmi_tablet_sw_report(struct asus_wmi *asus, bool value)
598{
599 input_report_switch(asus->inputdev, SW_TABLET_MODE,
600 asus->tablet_switch_inverted ? !value : value);
601 input_sync(asus->inputdev);
602}
603
604static void asus_wmi_tablet_sw_init(struct asus_wmi *asus, u32 dev_id, int event_code)
605{
606 struct device *dev = &asus->platform_device->dev;
607 int result;
608
609 result = asus_wmi_get_devstate_simple(asus, dev_id);
610 if (result >= 0) {
611 input_set_capability(asus->inputdev, EV_SW, SW_TABLET_MODE);
612 asus_wmi_tablet_sw_report(asus, result);
613 asus->tablet_switch_dev_id = dev_id;
614 asus->tablet_switch_event_code = event_code;
615 } else if (result == -ENODEV) {
616 dev_err(dev, "This device has tablet-mode-switch quirk but got ENODEV checking it. This is a bug.");
617 } else {
618 dev_err(dev, "Error checking for tablet-mode-switch: %d\n", result);
619 }
620}
621
622static int asus_wmi_input_init(struct asus_wmi *asus)
623{
624 struct device *dev = &asus->platform_device->dev;
625 int err;
626
627 asus->inputdev = input_allocate_device();
628 if (!asus->inputdev)
629 return -ENOMEM;
630
631 asus->inputdev->name = asus->driver->input_name;
632 asus->inputdev->phys = asus->driver->input_phys;
633 asus->inputdev->id.bustype = BUS_HOST;
634 asus->inputdev->dev.parent = dev;
635 set_bit(EV_REP, asus->inputdev->evbit);
636
637 err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL);
638 if (err)
639 goto err_free_dev;
640
641 switch (asus->driver->quirks->tablet_switch_mode) {
642 case asus_wmi_no_tablet_switch:
643 break;
644 case asus_wmi_kbd_dock_devid:
645 asus->tablet_switch_inverted = true;
646 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_KBD_DOCK, NOTIFY_KBD_DOCK_CHANGE);
647 break;
648 case asus_wmi_lid_flip_devid:
649 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_LID_FLIP, NOTIFY_LID_FLIP);
650 break;
651 case asus_wmi_lid_flip_rog_devid:
652 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_LID_FLIP_ROG, NOTIFY_LID_FLIP_ROG);
653 break;
654 }
655
656 err = input_register_device(asus->inputdev);
657 if (err)
658 goto err_free_dev;
659
660 return 0;
661
662err_free_dev:
663 input_free_device(asus->inputdev);
664 return err;
665}
666
667static void asus_wmi_input_exit(struct asus_wmi *asus)
668{
669 if (asus->inputdev)
670 input_unregister_device(asus->inputdev);
671
672 asus->inputdev = NULL;
673}
674
675/* Tablet mode ****************************************************************/
676
677static void asus_wmi_tablet_mode_get_state(struct asus_wmi *asus)
678{
679 int result;
680
681 if (!asus->tablet_switch_dev_id)
682 return;
683
684 result = asus_wmi_get_devstate_simple(asus, asus->tablet_switch_dev_id);
685 if (result >= 0)
686 asus_wmi_tablet_sw_report(asus, result);
687}
688
689/* Charging mode, 1=Barrel, 2=USB ******************************************/
690static ssize_t charge_mode_show(struct device *dev,
691 struct device_attribute *attr, char *buf)
692{
693 struct asus_wmi *asus = dev_get_drvdata(dev);
694 int result, value;
695
696 result = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CHARGE_MODE, &value);
697 if (result < 0)
698 return result;
699
700 return sysfs_emit(buf, "%d\n", value & 0xff);
701}
702
703static DEVICE_ATTR_RO(charge_mode);
704
705/* dGPU ********************************************************************/
706static ssize_t dgpu_disable_show(struct device *dev,
707 struct device_attribute *attr, char *buf)
708{
709 struct asus_wmi *asus = dev_get_drvdata(dev);
710 int result;
711
712 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_DGPU);
713 if (result < 0)
714 return result;
715
716 return sysfs_emit(buf, "%d\n", result);
717}
718
719/*
720 * A user may be required to store the value twice, typcial store first, then
721 * rescan PCI bus to activate power, then store a second time to save correctly.
722 * The reason for this is that an extra code path in the ACPI is enabled when
723 * the device and bus are powered.
724 */
725static ssize_t dgpu_disable_store(struct device *dev,
726 struct device_attribute *attr,
727 const char *buf, size_t count)
728{
729 int result, err;
730 u32 disable;
731
732 struct asus_wmi *asus = dev_get_drvdata(dev);
733
734 result = kstrtou32(buf, 10, &disable);
735 if (result)
736 return result;
737
738 if (disable > 1)
739 return -EINVAL;
740
741 if (asus->gpu_mux_dev) {
742 result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev);
743 if (result < 0)
744 /* An error here may signal greater failure of GPU handling */
745 return result;
746 if (!result && disable) {
747 err = -ENODEV;
748 pr_warn("Can not disable dGPU when the MUX is in dGPU mode: %d\n", err);
749 return err;
750 }
751 }
752
753 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_DGPU, disable, &result);
754 if (err) {
755 pr_warn("Failed to set dgpu disable: %d\n", err);
756 return err;
757 }
758
759 if (result > 1) {
760 pr_warn("Failed to set dgpu disable (result): 0x%x\n", result);
761 return -EIO;
762 }
763
764 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "dgpu_disable");
765
766 return count;
767}
768static DEVICE_ATTR_RW(dgpu_disable);
769
770/* eGPU ********************************************************************/
771static ssize_t egpu_enable_show(struct device *dev,
772 struct device_attribute *attr, char *buf)
773{
774 struct asus_wmi *asus = dev_get_drvdata(dev);
775 int result;
776
777 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU);
778 if (result < 0)
779 return result;
780
781 return sysfs_emit(buf, "%d\n", result);
782}
783
784/* The ACPI call to enable the eGPU also disables the internal dGPU */
785static ssize_t egpu_enable_store(struct device *dev,
786 struct device_attribute *attr,
787 const char *buf, size_t count)
788{
789 int result, err;
790 u32 enable;
791
792 struct asus_wmi *asus = dev_get_drvdata(dev);
793
794 err = kstrtou32(buf, 10, &enable);
795 if (err)
796 return err;
797
798 if (enable > 1)
799 return -EINVAL;
800
801 err = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
802 if (err < 0) {
803 pr_warn("Failed to get egpu connection status: %d\n", err);
804 return err;
805 }
806
807 if (asus->gpu_mux_dev) {
808 result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev);
809 if (result < 0) {
810 /* An error here may signal greater failure of GPU handling */
811 pr_warn("Failed to get gpu mux status: %d\n", result);
812 return result;
813 }
814 if (!result && enable) {
815 err = -ENODEV;
816 pr_warn("Can not enable eGPU when the MUX is in dGPU mode: %d\n", err);
817 return err;
818 }
819 }
820
821 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_EGPU, enable, &result);
822 if (err) {
823 pr_warn("Failed to set egpu state: %d\n", err);
824 return err;
825 }
826
827 if (result > 1) {
828 pr_warn("Failed to set egpu state (retval): 0x%x\n", result);
829 return -EIO;
830 }
831
832 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "egpu_enable");
833
834 return count;
835}
836static DEVICE_ATTR_RW(egpu_enable);
837
838/* Is eGPU connected? *********************************************************/
839static ssize_t egpu_connected_show(struct device *dev,
840 struct device_attribute *attr, char *buf)
841{
842 struct asus_wmi *asus = dev_get_drvdata(dev);
843 int result;
844
845 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
846 if (result < 0)
847 return result;
848
849 return sysfs_emit(buf, "%d\n", result);
850}
851
852static DEVICE_ATTR_RO(egpu_connected);
853
854/* gpu mux switch *************************************************************/
855static ssize_t gpu_mux_mode_show(struct device *dev,
856 struct device_attribute *attr, char *buf)
857{
858 struct asus_wmi *asus = dev_get_drvdata(dev);
859 int result;
860
861 result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev);
862 if (result < 0)
863 return result;
864
865 return sysfs_emit(buf, "%d\n", result);
866}
867
868static ssize_t gpu_mux_mode_store(struct device *dev,
869 struct device_attribute *attr,
870 const char *buf, size_t count)
871{
872 struct asus_wmi *asus = dev_get_drvdata(dev);
873 int result, err;
874 u32 optimus;
875
876 err = kstrtou32(buf, 10, &optimus);
877 if (err)
878 return err;
879
880 if (optimus > 1)
881 return -EINVAL;
882
883 if (asus->dgpu_disable_available) {
884 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_DGPU);
885 if (result < 0)
886 /* An error here may signal greater failure of GPU handling */
887 return result;
888 if (result && !optimus) {
889 err = -ENODEV;
890 pr_warn("Can not switch MUX to dGPU mode when dGPU is disabled: %d\n", err);
891 return err;
892 }
893 }
894
895 if (asus->egpu_enable_available) {
896 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU);
897 if (result < 0)
898 /* An error here may signal greater failure of GPU handling */
899 return result;
900 if (result && !optimus) {
901 err = -ENODEV;
902 pr_warn("Can not switch MUX to dGPU mode when eGPU is enabled: %d\n", err);
903 return err;
904 }
905 }
906
907 err = asus_wmi_set_devstate(asus->gpu_mux_dev, optimus, &result);
908 if (err) {
909 dev_err(dev, "Failed to set GPU MUX mode: %d\n", err);
910 return err;
911 }
912 /* !1 is considered a fail by ASUS */
913 if (result != 1) {
914 dev_warn(dev, "Failed to set GPU MUX mode (result): 0x%x\n", result);
915 return -EIO;
916 }
917
918 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "gpu_mux_mode");
919
920 return count;
921}
922static DEVICE_ATTR_RW(gpu_mux_mode);
923
924/* TUF Laptop Keyboard RGB Modes **********************************************/
925static ssize_t kbd_rgb_mode_store(struct device *dev,
926 struct device_attribute *attr,
927 const char *buf, size_t count)
928{
929 u32 cmd, mode, r, g, b, speed;
930 struct led_classdev *led;
931 struct asus_wmi *asus;
932 int err;
933
934 led = dev_get_drvdata(dev);
935 asus = container_of(led, struct asus_wmi, kbd_led);
936
937 if (sscanf(buf, "%d %d %d %d %d %d", &cmd, &mode, &r, &g, &b, &speed) != 6)
938 return -EINVAL;
939
940 /* B3 is set and B4 is save to BIOS */
941 switch (cmd) {
942 case 0:
943 cmd = 0xb3;
944 break;
945 case 1:
946 cmd = 0xb4;
947 break;
948 default:
949 return -EINVAL;
950 }
951
952 /* These are the known usable modes across all TUF/ROG */
953 if (mode >= 12 || mode == 9)
954 mode = 10;
955
956 switch (speed) {
957 case 0:
958 speed = 0xe1;
959 break;
960 case 1:
961 speed = 0xeb;
962 break;
963 case 2:
964 speed = 0xf5;
965 break;
966 default:
967 speed = 0xeb;
968 }
969
970 err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS, asus->kbd_rgb_dev,
971 cmd | (mode << 8) | (r << 16) | (g << 24), b | (speed << 8), NULL);
972 if (err)
973 return err;
974
975 return count;
976}
977static DEVICE_ATTR_WO(kbd_rgb_mode);
978
979static DEVICE_STRING_ATTR_RO(kbd_rgb_mode_index, 0444,
980 "cmd mode red green blue speed");
981
982static struct attribute *kbd_rgb_mode_attrs[] = {
983 &dev_attr_kbd_rgb_mode.attr,
984 &dev_attr_kbd_rgb_mode_index.attr.attr,
985 NULL,
986};
987
988static const struct attribute_group kbd_rgb_mode_group = {
989 .attrs = kbd_rgb_mode_attrs,
990};
991
992/* TUF Laptop Keyboard RGB State **********************************************/
993static ssize_t kbd_rgb_state_store(struct device *dev,
994 struct device_attribute *attr,
995 const char *buf, size_t count)
996{
997 u32 flags, cmd, boot, awake, sleep, keyboard;
998 int err;
999
1000 if (sscanf(buf, "%d %d %d %d %d", &cmd, &boot, &awake, &sleep, &keyboard) != 5)
1001 return -EINVAL;
1002
1003 if (cmd)
1004 cmd = BIT(2);
1005
1006 flags = 0;
1007 if (boot)
1008 flags |= BIT(1);
1009 if (awake)
1010 flags |= BIT(3);
1011 if (sleep)
1012 flags |= BIT(5);
1013 if (keyboard)
1014 flags |= BIT(7);
1015
1016 /* 0xbd is the required default arg0 for the method. Nothing happens otherwise */
1017 err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS,
1018 ASUS_WMI_DEVID_TUF_RGB_STATE, 0xbd | cmd << 8 | (flags << 16), 0, NULL);
1019 if (err)
1020 return err;
1021
1022 return count;
1023}
1024static DEVICE_ATTR_WO(kbd_rgb_state);
1025
1026static DEVICE_STRING_ATTR_RO(kbd_rgb_state_index, 0444,
1027 "cmd boot awake sleep keyboard");
1028
1029static struct attribute *kbd_rgb_state_attrs[] = {
1030 &dev_attr_kbd_rgb_state.attr,
1031 &dev_attr_kbd_rgb_state_index.attr.attr,
1032 NULL,
1033};
1034
1035static const struct attribute_group kbd_rgb_state_group = {
1036 .attrs = kbd_rgb_state_attrs,
1037};
1038
1039static const struct attribute_group *kbd_rgb_mode_groups[] = {
1040 NULL,
1041 NULL,
1042 NULL,
1043};
1044
1045/* Tunable: PPT: Intel=PL1, AMD=SPPT *****************************************/
1046static ssize_t ppt_pl2_sppt_store(struct device *dev,
1047 struct device_attribute *attr,
1048 const char *buf, size_t count)
1049{
1050 struct asus_wmi *asus = dev_get_drvdata(dev);
1051 int result, err;
1052 u32 value;
1053
1054 result = kstrtou32(buf, 10, &value);
1055 if (result)
1056 return result;
1057
1058 if (value < PPT_TOTAL_MIN || value > PPT_TOTAL_MAX)
1059 return -EINVAL;
1060
1061 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_PL2_SPPT, value, &result);
1062 if (err) {
1063 pr_warn("Failed to set ppt_pl2_sppt: %d\n", err);
1064 return err;
1065 }
1066
1067 if (result > 1) {
1068 pr_warn("Failed to set ppt_pl2_sppt (result): 0x%x\n", result);
1069 return -EIO;
1070 }
1071
1072 asus->ppt_pl2_sppt = value;
1073 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_pl2_sppt");
1074
1075 return count;
1076}
1077
1078static ssize_t ppt_pl2_sppt_show(struct device *dev,
1079 struct device_attribute *attr,
1080 char *buf)
1081{
1082 struct asus_wmi *asus = dev_get_drvdata(dev);
1083
1084 return sysfs_emit(buf, "%u\n", asus->ppt_pl2_sppt);
1085}
1086static DEVICE_ATTR_RW(ppt_pl2_sppt);
1087
1088/* Tunable: PPT, Intel=PL1, AMD=SPL ******************************************/
1089static ssize_t ppt_pl1_spl_store(struct device *dev,
1090 struct device_attribute *attr,
1091 const char *buf, size_t count)
1092{
1093 struct asus_wmi *asus = dev_get_drvdata(dev);
1094 int result, err;
1095 u32 value;
1096
1097 result = kstrtou32(buf, 10, &value);
1098 if (result)
1099 return result;
1100
1101 if (value < PPT_TOTAL_MIN || value > PPT_TOTAL_MAX)
1102 return -EINVAL;
1103
1104 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_PL1_SPL, value, &result);
1105 if (err) {
1106 pr_warn("Failed to set ppt_pl1_spl: %d\n", err);
1107 return err;
1108 }
1109
1110 if (result > 1) {
1111 pr_warn("Failed to set ppt_pl1_spl (result): 0x%x\n", result);
1112 return -EIO;
1113 }
1114
1115 asus->ppt_pl1_spl = value;
1116 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_pl1_spl");
1117
1118 return count;
1119}
1120static ssize_t ppt_pl1_spl_show(struct device *dev,
1121 struct device_attribute *attr,
1122 char *buf)
1123{
1124 struct asus_wmi *asus = dev_get_drvdata(dev);
1125
1126 return sysfs_emit(buf, "%u\n", asus->ppt_pl1_spl);
1127}
1128static DEVICE_ATTR_RW(ppt_pl1_spl);
1129
1130/* Tunable: PPT APU FPPT ******************************************************/
1131static ssize_t ppt_fppt_store(struct device *dev,
1132 struct device_attribute *attr,
1133 const char *buf, size_t count)
1134{
1135 struct asus_wmi *asus = dev_get_drvdata(dev);
1136 int result, err;
1137 u32 value;
1138
1139 result = kstrtou32(buf, 10, &value);
1140 if (result)
1141 return result;
1142
1143 if (value < PPT_TOTAL_MIN || value > PPT_TOTAL_MAX)
1144 return -EINVAL;
1145
1146 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_FPPT, value, &result);
1147 if (err) {
1148 pr_warn("Failed to set ppt_fppt: %d\n", err);
1149 return err;
1150 }
1151
1152 if (result > 1) {
1153 pr_warn("Failed to set ppt_fppt (result): 0x%x\n", result);
1154 return -EIO;
1155 }
1156
1157 asus->ppt_fppt = value;
1158 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_fpu_sppt");
1159
1160 return count;
1161}
1162
1163static ssize_t ppt_fppt_show(struct device *dev,
1164 struct device_attribute *attr,
1165 char *buf)
1166{
1167 struct asus_wmi *asus = dev_get_drvdata(dev);
1168
1169 return sysfs_emit(buf, "%u\n", asus->ppt_fppt);
1170}
1171static DEVICE_ATTR_RW(ppt_fppt);
1172
1173/* Tunable: PPT APU SPPT *****************************************************/
1174static ssize_t ppt_apu_sppt_store(struct device *dev,
1175 struct device_attribute *attr,
1176 const char *buf, size_t count)
1177{
1178 struct asus_wmi *asus = dev_get_drvdata(dev);
1179 int result, err;
1180 u32 value;
1181
1182 result = kstrtou32(buf, 10, &value);
1183 if (result)
1184 return result;
1185
1186 if (value < PPT_CPU_MIN || value > PPT_CPU_MAX)
1187 return -EINVAL;
1188
1189 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_APU_SPPT, value, &result);
1190 if (err) {
1191 pr_warn("Failed to set ppt_apu_sppt: %d\n", err);
1192 return err;
1193 }
1194
1195 if (result > 1) {
1196 pr_warn("Failed to set ppt_apu_sppt (result): 0x%x\n", result);
1197 return -EIO;
1198 }
1199
1200 asus->ppt_apu_sppt = value;
1201 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_apu_sppt");
1202
1203 return count;
1204}
1205
1206static ssize_t ppt_apu_sppt_show(struct device *dev,
1207 struct device_attribute *attr,
1208 char *buf)
1209{
1210 struct asus_wmi *asus = dev_get_drvdata(dev);
1211
1212 return sysfs_emit(buf, "%u\n", asus->ppt_apu_sppt);
1213}
1214static DEVICE_ATTR_RW(ppt_apu_sppt);
1215
1216/* Tunable: PPT platform SPPT ************************************************/
1217static ssize_t ppt_platform_sppt_store(struct device *dev,
1218 struct device_attribute *attr,
1219 const char *buf, size_t count)
1220{
1221 struct asus_wmi *asus = dev_get_drvdata(dev);
1222 int result, err;
1223 u32 value;
1224
1225 result = kstrtou32(buf, 10, &value);
1226 if (result)
1227 return result;
1228
1229 if (value < PPT_CPU_MIN || value > PPT_CPU_MAX)
1230 return -EINVAL;
1231
1232 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_PLAT_SPPT, value, &result);
1233 if (err) {
1234 pr_warn("Failed to set ppt_platform_sppt: %d\n", err);
1235 return err;
1236 }
1237
1238 if (result > 1) {
1239 pr_warn("Failed to set ppt_platform_sppt (result): 0x%x\n", result);
1240 return -EIO;
1241 }
1242
1243 asus->ppt_platform_sppt = value;
1244 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_platform_sppt");
1245
1246 return count;
1247}
1248
1249static ssize_t ppt_platform_sppt_show(struct device *dev,
1250 struct device_attribute *attr,
1251 char *buf)
1252{
1253 struct asus_wmi *asus = dev_get_drvdata(dev);
1254
1255 return sysfs_emit(buf, "%u\n", asus->ppt_platform_sppt);
1256}
1257static DEVICE_ATTR_RW(ppt_platform_sppt);
1258
1259/* Tunable: NVIDIA dynamic boost *********************************************/
1260static ssize_t nv_dynamic_boost_store(struct device *dev,
1261 struct device_attribute *attr,
1262 const char *buf, size_t count)
1263{
1264 struct asus_wmi *asus = dev_get_drvdata(dev);
1265 int result, err;
1266 u32 value;
1267
1268 result = kstrtou32(buf, 10, &value);
1269 if (result)
1270 return result;
1271
1272 if (value < NVIDIA_BOOST_MIN || value > NVIDIA_BOOST_MAX)
1273 return -EINVAL;
1274
1275 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_NV_DYN_BOOST, value, &result);
1276 if (err) {
1277 pr_warn("Failed to set nv_dynamic_boost: %d\n", err);
1278 return err;
1279 }
1280
1281 if (result > 1) {
1282 pr_warn("Failed to set nv_dynamic_boost (result): 0x%x\n", result);
1283 return -EIO;
1284 }
1285
1286 asus->nv_dynamic_boost = value;
1287 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "nv_dynamic_boost");
1288
1289 return count;
1290}
1291
1292static ssize_t nv_dynamic_boost_show(struct device *dev,
1293 struct device_attribute *attr,
1294 char *buf)
1295{
1296 struct asus_wmi *asus = dev_get_drvdata(dev);
1297
1298 return sysfs_emit(buf, "%u\n", asus->nv_dynamic_boost);
1299}
1300static DEVICE_ATTR_RW(nv_dynamic_boost);
1301
1302/* Tunable: NVIDIA temperature target ****************************************/
1303static ssize_t nv_temp_target_store(struct device *dev,
1304 struct device_attribute *attr,
1305 const char *buf, size_t count)
1306{
1307 struct asus_wmi *asus = dev_get_drvdata(dev);
1308 int result, err;
1309 u32 value;
1310
1311 result = kstrtou32(buf, 10, &value);
1312 if (result)
1313 return result;
1314
1315 if (value < NVIDIA_TEMP_MIN || value > NVIDIA_TEMP_MAX)
1316 return -EINVAL;
1317
1318 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_NV_THERM_TARGET, value, &result);
1319 if (err) {
1320 pr_warn("Failed to set nv_temp_target: %d\n", err);
1321 return err;
1322 }
1323
1324 if (result > 1) {
1325 pr_warn("Failed to set nv_temp_target (result): 0x%x\n", result);
1326 return -EIO;
1327 }
1328
1329 asus->nv_temp_target = value;
1330 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "nv_temp_target");
1331
1332 return count;
1333}
1334
1335static ssize_t nv_temp_target_show(struct device *dev,
1336 struct device_attribute *attr,
1337 char *buf)
1338{
1339 struct asus_wmi *asus = dev_get_drvdata(dev);
1340
1341 return sysfs_emit(buf, "%u\n", asus->nv_temp_target);
1342}
1343static DEVICE_ATTR_RW(nv_temp_target);
1344
1345/* Ally MCU Powersave ********************************************************/
1346static ssize_t mcu_powersave_show(struct device *dev,
1347 struct device_attribute *attr, char *buf)
1348{
1349 struct asus_wmi *asus = dev_get_drvdata(dev);
1350 int result;
1351
1352 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_MCU_POWERSAVE);
1353 if (result < 0)
1354 return result;
1355
1356 return sysfs_emit(buf, "%d\n", result);
1357}
1358
1359static ssize_t mcu_powersave_store(struct device *dev,
1360 struct device_attribute *attr,
1361 const char *buf, size_t count)
1362{
1363 int result, err;
1364 u32 enable;
1365
1366 struct asus_wmi *asus = dev_get_drvdata(dev);
1367
1368 result = kstrtou32(buf, 10, &enable);
1369 if (result)
1370 return result;
1371
1372 if (enable > 1)
1373 return -EINVAL;
1374
1375 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MCU_POWERSAVE, enable, &result);
1376 if (err) {
1377 pr_warn("Failed to set MCU powersave: %d\n", err);
1378 return err;
1379 }
1380
1381 if (result > 1) {
1382 pr_warn("Failed to set MCU powersave (result): 0x%x\n", result);
1383 return -EIO;
1384 }
1385
1386 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "mcu_powersave");
1387
1388 return count;
1389}
1390static DEVICE_ATTR_RW(mcu_powersave);
1391
1392/* Battery ********************************************************************/
1393
1394/* The battery maximum charging percentage */
1395static int charge_end_threshold;
1396
1397static ssize_t charge_control_end_threshold_store(struct device *dev,
1398 struct device_attribute *attr,
1399 const char *buf, size_t count)
1400{
1401 int value, ret, rv;
1402
1403 ret = kstrtouint(buf, 10, &value);
1404 if (ret)
1405 return ret;
1406
1407 if (value < 0 || value > 100)
1408 return -EINVAL;
1409
1410 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_RSOC, value, &rv);
1411 if (ret)
1412 return ret;
1413
1414 if (rv != 1)
1415 return -EIO;
1416
1417 /* There isn't any method in the DSDT to read the threshold, so we
1418 * save the threshold.
1419 */
1420 charge_end_threshold = value;
1421 return count;
1422}
1423
1424static ssize_t charge_control_end_threshold_show(struct device *device,
1425 struct device_attribute *attr,
1426 char *buf)
1427{
1428 return sysfs_emit(buf, "%d\n", charge_end_threshold);
1429}
1430
1431static DEVICE_ATTR_RW(charge_control_end_threshold);
1432
1433static int asus_wmi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
1434{
1435 /* The WMI method does not provide a way to specific a battery, so we
1436 * just assume it is the first battery.
1437 * Note: On some newer ASUS laptops (Zenbook UM431DA), the primary/first
1438 * battery is named BATT.
1439 */
1440 if (strcmp(battery->desc->name, "BAT0") != 0 &&
1441 strcmp(battery->desc->name, "BAT1") != 0 &&
1442 strcmp(battery->desc->name, "BATC") != 0 &&
1443 strcmp(battery->desc->name, "BATT") != 0)
1444 return -ENODEV;
1445
1446 if (device_create_file(&battery->dev,
1447 &dev_attr_charge_control_end_threshold))
1448 return -ENODEV;
1449
1450 /* The charge threshold is only reset when the system is power cycled,
1451 * and we can't get the current threshold so let set it to 100% when
1452 * a battery is added.
1453 */
1454 asus_wmi_set_devstate(ASUS_WMI_DEVID_RSOC, 100, NULL);
1455 charge_end_threshold = 100;
1456
1457 return 0;
1458}
1459
1460static int asus_wmi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
1461{
1462 device_remove_file(&battery->dev,
1463 &dev_attr_charge_control_end_threshold);
1464 return 0;
1465}
1466
1467static struct acpi_battery_hook battery_hook = {
1468 .add_battery = asus_wmi_battery_add,
1469 .remove_battery = asus_wmi_battery_remove,
1470 .name = "ASUS Battery Extension",
1471};
1472
1473static void asus_wmi_battery_init(struct asus_wmi *asus)
1474{
1475 asus->battery_rsoc_available = false;
1476 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_RSOC)) {
1477 asus->battery_rsoc_available = true;
1478 battery_hook_register(&battery_hook);
1479 }
1480}
1481
1482static void asus_wmi_battery_exit(struct asus_wmi *asus)
1483{
1484 if (asus->battery_rsoc_available)
1485 battery_hook_unregister(&battery_hook);
1486}
1487
1488/* LEDs ***********************************************************************/
1489
1490/*
1491 * These functions actually update the LED's, and are called from a
1492 * workqueue. By doing this as separate work rather than when the LED
1493 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
1494 * potentially bad time, such as a timer interrupt.
1495 */
1496static void tpd_led_update(struct work_struct *work)
1497{
1498 int ctrl_param;
1499 struct asus_wmi *asus;
1500
1501 asus = container_of(work, struct asus_wmi, tpd_led_work);
1502
1503 ctrl_param = asus->tpd_led_wk;
1504 asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
1505}
1506
1507static void tpd_led_set(struct led_classdev *led_cdev,
1508 enum led_brightness value)
1509{
1510 struct asus_wmi *asus;
1511
1512 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
1513
1514 asus->tpd_led_wk = !!value;
1515 queue_work(asus->led_workqueue, &asus->tpd_led_work);
1516}
1517
1518static int read_tpd_led_state(struct asus_wmi *asus)
1519{
1520 return asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_TOUCHPAD_LED);
1521}
1522
1523static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
1524{
1525 struct asus_wmi *asus;
1526
1527 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
1528
1529 return read_tpd_led_state(asus);
1530}
1531
1532static void kbd_led_update(struct asus_wmi *asus)
1533{
1534 int ctrl_param = 0;
1535
1536 ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F);
1537 asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL);
1538}
1539
1540static int kbd_led_read(struct asus_wmi *asus, int *level, int *env)
1541{
1542 int retval;
1543
1544 /*
1545 * bits 0-2: level
1546 * bit 7: light on/off
1547 * bit 8-10: environment (0: dark, 1: normal, 2: light)
1548 * bit 17: status unknown
1549 */
1550 retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT,
1551 0xFFFF);
1552
1553 /* Unknown status is considered as off */
1554 if (retval == 0x8000)
1555 retval = 0;
1556
1557 if (retval < 0)
1558 return retval;
1559
1560 if (level)
1561 *level = retval & 0x7F;
1562 if (env)
1563 *env = (retval >> 8) & 0x7F;
1564 return 0;
1565}
1566
1567static void do_kbd_led_set(struct led_classdev *led_cdev, int value)
1568{
1569 struct asus_wmi *asus;
1570 int max_level;
1571
1572 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
1573 max_level = asus->kbd_led.max_brightness;
1574
1575 asus->kbd_led_wk = clamp_val(value, 0, max_level);
1576 kbd_led_update(asus);
1577}
1578
1579static void kbd_led_set(struct led_classdev *led_cdev,
1580 enum led_brightness value)
1581{
1582 /* Prevent disabling keyboard backlight on module unregister */
1583 if (led_cdev->flags & LED_UNREGISTERING)
1584 return;
1585
1586 do_kbd_led_set(led_cdev, value);
1587}
1588
1589static void kbd_led_set_by_kbd(struct asus_wmi *asus, enum led_brightness value)
1590{
1591 struct led_classdev *led_cdev = &asus->kbd_led;
1592
1593 do_kbd_led_set(led_cdev, value);
1594 led_classdev_notify_brightness_hw_changed(led_cdev, asus->kbd_led_wk);
1595}
1596
1597static enum led_brightness kbd_led_get(struct led_classdev *led_cdev)
1598{
1599 struct asus_wmi *asus;
1600 int retval, value;
1601
1602 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
1603
1604 retval = kbd_led_read(asus, &value, NULL);
1605 if (retval < 0)
1606 return retval;
1607
1608 return value;
1609}
1610
1611static int wlan_led_unknown_state(struct asus_wmi *asus)
1612{
1613 u32 result;
1614
1615 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
1616
1617 return result & ASUS_WMI_DSTS_UNKNOWN_BIT;
1618}
1619
1620static void wlan_led_update(struct work_struct *work)
1621{
1622 int ctrl_param;
1623 struct asus_wmi *asus;
1624
1625 asus = container_of(work, struct asus_wmi, wlan_led_work);
1626
1627 ctrl_param = asus->wlan_led_wk;
1628 asus_wmi_set_devstate(ASUS_WMI_DEVID_WIRELESS_LED, ctrl_param, NULL);
1629}
1630
1631static void wlan_led_set(struct led_classdev *led_cdev,
1632 enum led_brightness value)
1633{
1634 struct asus_wmi *asus;
1635
1636 asus = container_of(led_cdev, struct asus_wmi, wlan_led);
1637
1638 asus->wlan_led_wk = !!value;
1639 queue_work(asus->led_workqueue, &asus->wlan_led_work);
1640}
1641
1642static enum led_brightness wlan_led_get(struct led_classdev *led_cdev)
1643{
1644 struct asus_wmi *asus;
1645 u32 result;
1646
1647 asus = container_of(led_cdev, struct asus_wmi, wlan_led);
1648 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
1649
1650 return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
1651}
1652
1653static void lightbar_led_update(struct work_struct *work)
1654{
1655 struct asus_wmi *asus;
1656 int ctrl_param;
1657
1658 asus = container_of(work, struct asus_wmi, lightbar_led_work);
1659
1660 ctrl_param = asus->lightbar_led_wk;
1661 asus_wmi_set_devstate(ASUS_WMI_DEVID_LIGHTBAR, ctrl_param, NULL);
1662}
1663
1664static void lightbar_led_set(struct led_classdev *led_cdev,
1665 enum led_brightness value)
1666{
1667 struct asus_wmi *asus;
1668
1669 asus = container_of(led_cdev, struct asus_wmi, lightbar_led);
1670
1671 asus->lightbar_led_wk = !!value;
1672 queue_work(asus->led_workqueue, &asus->lightbar_led_work);
1673}
1674
1675static enum led_brightness lightbar_led_get(struct led_classdev *led_cdev)
1676{
1677 struct asus_wmi *asus;
1678 u32 result;
1679
1680 asus = container_of(led_cdev, struct asus_wmi, lightbar_led);
1681 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_LIGHTBAR, &result);
1682
1683 return result & ASUS_WMI_DSTS_LIGHTBAR_MASK;
1684}
1685
1686static int micmute_led_set(struct led_classdev *led_cdev,
1687 enum led_brightness brightness)
1688{
1689 int state = brightness != LED_OFF;
1690 int err;
1691
1692 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MICMUTE_LED, state, NULL);
1693 return err < 0 ? err : 0;
1694}
1695
1696static enum led_brightness camera_led_get(struct led_classdev *led_cdev)
1697{
1698 struct asus_wmi *asus;
1699 u32 result;
1700
1701 asus = container_of(led_cdev, struct asus_wmi, camera_led);
1702 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CAMERA_LED, &result);
1703
1704 return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
1705}
1706
1707static int camera_led_set(struct led_classdev *led_cdev,
1708 enum led_brightness brightness)
1709{
1710 int state = brightness != LED_OFF;
1711 int err;
1712
1713 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_CAMERA_LED, state, NULL);
1714 return err < 0 ? err : 0;
1715}
1716
1717static void asus_wmi_led_exit(struct asus_wmi *asus)
1718{
1719 led_classdev_unregister(&asus->kbd_led);
1720 led_classdev_unregister(&asus->tpd_led);
1721 led_classdev_unregister(&asus->wlan_led);
1722 led_classdev_unregister(&asus->lightbar_led);
1723 led_classdev_unregister(&asus->micmute_led);
1724 led_classdev_unregister(&asus->camera_led);
1725
1726 if (asus->led_workqueue)
1727 destroy_workqueue(asus->led_workqueue);
1728}
1729
1730static int asus_wmi_led_init(struct asus_wmi *asus)
1731{
1732 int rv = 0, num_rgb_groups = 0, led_val;
1733
1734 if (asus->kbd_rgb_dev)
1735 kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_mode_group;
1736 if (asus->kbd_rgb_state_available)
1737 kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_state_group;
1738
1739 asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
1740 if (!asus->led_workqueue)
1741 return -ENOMEM;
1742
1743 if (read_tpd_led_state(asus) >= 0) {
1744 INIT_WORK(&asus->tpd_led_work, tpd_led_update);
1745
1746 asus->tpd_led.name = "asus::touchpad";
1747 asus->tpd_led.brightness_set = tpd_led_set;
1748 asus->tpd_led.brightness_get = tpd_led_get;
1749 asus->tpd_led.max_brightness = 1;
1750
1751 rv = led_classdev_register(&asus->platform_device->dev,
1752 &asus->tpd_led);
1753 if (rv)
1754 goto error;
1755 }
1756
1757 if (!kbd_led_read(asus, &led_val, NULL) && !dmi_check_system(asus_use_hid_led_dmi_ids)) {
1758 pr_info("using asus-wmi for asus::kbd_backlight\n");
1759 asus->kbd_led_wk = led_val;
1760 asus->kbd_led.name = "asus::kbd_backlight";
1761 asus->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
1762 asus->kbd_led.brightness_set = kbd_led_set;
1763 asus->kbd_led.brightness_get = kbd_led_get;
1764 asus->kbd_led.max_brightness = 3;
1765
1766 if (num_rgb_groups != 0)
1767 asus->kbd_led.groups = kbd_rgb_mode_groups;
1768
1769 rv = led_classdev_register(&asus->platform_device->dev,
1770 &asus->kbd_led);
1771 if (rv)
1772 goto error;
1773 }
1774
1775 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_WIRELESS_LED)
1776 && (asus->driver->quirks->wapf > 0)) {
1777 INIT_WORK(&asus->wlan_led_work, wlan_led_update);
1778
1779 asus->wlan_led.name = "asus::wlan";
1780 asus->wlan_led.brightness_set = wlan_led_set;
1781 if (!wlan_led_unknown_state(asus))
1782 asus->wlan_led.brightness_get = wlan_led_get;
1783 asus->wlan_led.flags = LED_CORE_SUSPENDRESUME;
1784 asus->wlan_led.max_brightness = 1;
1785 asus->wlan_led.default_trigger = "asus-wlan";
1786
1787 rv = led_classdev_register(&asus->platform_device->dev,
1788 &asus->wlan_led);
1789 if (rv)
1790 goto error;
1791 }
1792
1793 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_LIGHTBAR)) {
1794 INIT_WORK(&asus->lightbar_led_work, lightbar_led_update);
1795
1796 asus->lightbar_led.name = "asus::lightbar";
1797 asus->lightbar_led.brightness_set = lightbar_led_set;
1798 asus->lightbar_led.brightness_get = lightbar_led_get;
1799 asus->lightbar_led.max_brightness = 1;
1800
1801 rv = led_classdev_register(&asus->platform_device->dev,
1802 &asus->lightbar_led);
1803 }
1804
1805 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MICMUTE_LED)) {
1806 asus->micmute_led.name = "platform::micmute";
1807 asus->micmute_led.max_brightness = 1;
1808 asus->micmute_led.brightness_set_blocking = micmute_led_set;
1809 asus->micmute_led.default_trigger = "audio-micmute";
1810
1811 rv = led_classdev_register(&asus->platform_device->dev,
1812 &asus->micmute_led);
1813 if (rv)
1814 goto error;
1815 }
1816
1817 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CAMERA_LED)) {
1818 asus->camera_led.name = "asus::camera";
1819 asus->camera_led.max_brightness = 1;
1820 asus->camera_led.brightness_get = camera_led_get;
1821 asus->camera_led.brightness_set_blocking = camera_led_set;
1822
1823 rv = led_classdev_register(&asus->platform_device->dev,
1824 &asus->camera_led);
1825 if (rv)
1826 goto error;
1827 }
1828
1829 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_OOBE)) {
1830 /*
1831 * Disable OOBE state, so that e.g. the keyboard backlight
1832 * works.
1833 */
1834 rv = asus_wmi_set_devstate(ASUS_WMI_DEVID_OOBE, 1, NULL);
1835 if (rv)
1836 goto error;
1837 }
1838
1839error:
1840 if (rv)
1841 asus_wmi_led_exit(asus);
1842
1843 return rv;
1844}
1845
1846/* RF *************************************************************************/
1847
1848/*
1849 * PCI hotplug (for wlan rfkill)
1850 */
1851static bool asus_wlan_rfkill_blocked(struct asus_wmi *asus)
1852{
1853 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
1854
1855 if (result < 0)
1856 return false;
1857 return !result;
1858}
1859
1860static void asus_rfkill_hotplug(struct asus_wmi *asus)
1861{
1862 struct pci_dev *dev;
1863 struct pci_bus *bus;
1864 bool blocked;
1865 bool absent;
1866 u32 l;
1867
1868 mutex_lock(&asus->wmi_lock);
1869 blocked = asus_wlan_rfkill_blocked(asus);
1870 mutex_unlock(&asus->wmi_lock);
1871
1872 mutex_lock(&asus->hotplug_lock);
1873 pci_lock_rescan_remove();
1874
1875 if (asus->wlan.rfkill)
1876 rfkill_set_sw_state(asus->wlan.rfkill, blocked);
1877
1878 if (asus->hotplug_slot.ops) {
1879 bus = pci_find_bus(0, 1);
1880 if (!bus) {
1881 pr_warn("Unable to find PCI bus 1?\n");
1882 goto out_unlock;
1883 }
1884
1885 if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
1886 pr_err("Unable to read PCI config space?\n");
1887 goto out_unlock;
1888 }
1889 absent = (l == 0xffffffff);
1890
1891 if (blocked != absent) {
1892 pr_warn("BIOS says wireless lan is %s, but the pci device is %s\n",
1893 blocked ? "blocked" : "unblocked",
1894 absent ? "absent" : "present");
1895 pr_warn("skipped wireless hotplug as probably inappropriate for this model\n");
1896 goto out_unlock;
1897 }
1898
1899 if (!blocked) {
1900 dev = pci_get_slot(bus, 0);
1901 if (dev) {
1902 /* Device already present */
1903 pci_dev_put(dev);
1904 goto out_unlock;
1905 }
1906 dev = pci_scan_single_device(bus, 0);
1907 if (dev) {
1908 pci_bus_assign_resources(bus);
1909 pci_bus_add_device(dev);
1910 }
1911 } else {
1912 dev = pci_get_slot(bus, 0);
1913 if (dev) {
1914 pci_stop_and_remove_bus_device(dev);
1915 pci_dev_put(dev);
1916 }
1917 }
1918 }
1919
1920out_unlock:
1921 pci_unlock_rescan_remove();
1922 mutex_unlock(&asus->hotplug_lock);
1923}
1924
1925static void asus_rfkill_notify(acpi_handle handle, u32 event, void *data)
1926{
1927 struct asus_wmi *asus = data;
1928
1929 if (event != ACPI_NOTIFY_BUS_CHECK)
1930 return;
1931
1932 /*
1933 * We can't call directly asus_rfkill_hotplug because most
1934 * of the time WMBC is still being executed and not reetrant.
1935 * There is currently no way to tell ACPICA that we want this
1936 * method to be serialized, we schedule a asus_rfkill_hotplug
1937 * call later, in a safer context.
1938 */
1939 queue_work(asus->hotplug_workqueue, &asus->hotplug_work);
1940}
1941
1942static int asus_register_rfkill_notifier(struct asus_wmi *asus, char *node)
1943{
1944 acpi_status status;
1945 acpi_handle handle;
1946
1947 status = acpi_get_handle(NULL, node, &handle);
1948 if (ACPI_FAILURE(status))
1949 return -ENODEV;
1950
1951 status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
1952 asus_rfkill_notify, asus);
1953 if (ACPI_FAILURE(status))
1954 pr_warn("Failed to register notify on %s\n", node);
1955
1956 return 0;
1957}
1958
1959static void asus_unregister_rfkill_notifier(struct asus_wmi *asus, char *node)
1960{
1961 acpi_status status = AE_OK;
1962 acpi_handle handle;
1963
1964 status = acpi_get_handle(NULL, node, &handle);
1965 if (ACPI_FAILURE(status))
1966 return;
1967
1968 status = acpi_remove_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
1969 asus_rfkill_notify);
1970 if (ACPI_FAILURE(status))
1971 pr_err("Error removing rfkill notify handler %s\n", node);
1972}
1973
1974static int asus_get_adapter_status(struct hotplug_slot *hotplug_slot,
1975 u8 *value)
1976{
1977 struct asus_wmi *asus = container_of(hotplug_slot,
1978 struct asus_wmi, hotplug_slot);
1979 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
1980
1981 if (result < 0)
1982 return result;
1983
1984 *value = !!result;
1985 return 0;
1986}
1987
1988static const struct hotplug_slot_ops asus_hotplug_slot_ops = {
1989 .get_adapter_status = asus_get_adapter_status,
1990 .get_power_status = asus_get_adapter_status,
1991};
1992
1993static void asus_hotplug_work(struct work_struct *work)
1994{
1995 struct asus_wmi *asus;
1996
1997 asus = container_of(work, struct asus_wmi, hotplug_work);
1998 asus_rfkill_hotplug(asus);
1999}
2000
2001static int asus_setup_pci_hotplug(struct asus_wmi *asus)
2002{
2003 int ret = -ENOMEM;
2004 struct pci_bus *bus = pci_find_bus(0, 1);
2005
2006 if (!bus) {
2007 pr_err("Unable to find wifi PCI bus\n");
2008 return -ENODEV;
2009 }
2010
2011 asus->hotplug_workqueue =
2012 create_singlethread_workqueue("hotplug_workqueue");
2013 if (!asus->hotplug_workqueue)
2014 goto error_workqueue;
2015
2016 INIT_WORK(&asus->hotplug_work, asus_hotplug_work);
2017
2018 asus->hotplug_slot.ops = &asus_hotplug_slot_ops;
2019
2020 ret = pci_hp_register(&asus->hotplug_slot, bus, 0, "asus-wifi");
2021 if (ret) {
2022 pr_err("Unable to register hotplug slot - %d\n", ret);
2023 goto error_register;
2024 }
2025
2026 return 0;
2027
2028error_register:
2029 asus->hotplug_slot.ops = NULL;
2030 destroy_workqueue(asus->hotplug_workqueue);
2031error_workqueue:
2032 return ret;
2033}
2034
2035/*
2036 * Rfkill devices
2037 */
2038static int asus_rfkill_set(void *data, bool blocked)
2039{
2040 struct asus_rfkill *priv = data;
2041 u32 ctrl_param = !blocked;
2042 u32 dev_id = priv->dev_id;
2043
2044 /*
2045 * If the user bit is set, BIOS can't set and record the wlan status,
2046 * it will report the value read from id ASUS_WMI_DEVID_WLAN_LED
2047 * while we query the wlan status through WMI(ASUS_WMI_DEVID_WLAN).
2048 * So, we have to record wlan status in id ASUS_WMI_DEVID_WLAN_LED
2049 * while setting the wlan status through WMI.
2050 * This is also the behavior that windows app will do.
2051 */
2052 if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
2053 priv->asus->driver->wlan_ctrl_by_user)
2054 dev_id = ASUS_WMI_DEVID_WLAN_LED;
2055
2056 return asus_wmi_set_devstate(dev_id, ctrl_param, NULL);
2057}
2058
2059static void asus_rfkill_query(struct rfkill *rfkill, void *data)
2060{
2061 struct asus_rfkill *priv = data;
2062 int result;
2063
2064 result = asus_wmi_get_devstate_simple(priv->asus, priv->dev_id);
2065
2066 if (result < 0)
2067 return;
2068
2069 rfkill_set_sw_state(priv->rfkill, !result);
2070}
2071
2072static int asus_rfkill_wlan_set(void *data, bool blocked)
2073{
2074 struct asus_rfkill *priv = data;
2075 struct asus_wmi *asus = priv->asus;
2076 int ret;
2077
2078 /*
2079 * This handler is enabled only if hotplug is enabled.
2080 * In this case, the asus_wmi_set_devstate() will
2081 * trigger a wmi notification and we need to wait
2082 * this call to finish before being able to call
2083 * any wmi method
2084 */
2085 mutex_lock(&asus->wmi_lock);
2086 ret = asus_rfkill_set(data, blocked);
2087 mutex_unlock(&asus->wmi_lock);
2088 return ret;
2089}
2090
2091static const struct rfkill_ops asus_rfkill_wlan_ops = {
2092 .set_block = asus_rfkill_wlan_set,
2093 .query = asus_rfkill_query,
2094};
2095
2096static const struct rfkill_ops asus_rfkill_ops = {
2097 .set_block = asus_rfkill_set,
2098 .query = asus_rfkill_query,
2099};
2100
2101static int asus_new_rfkill(struct asus_wmi *asus,
2102 struct asus_rfkill *arfkill,
2103 const char *name, enum rfkill_type type, int dev_id)
2104{
2105 int result = asus_wmi_get_devstate_simple(asus, dev_id);
2106 struct rfkill **rfkill = &arfkill->rfkill;
2107
2108 if (result < 0)
2109 return result;
2110
2111 arfkill->dev_id = dev_id;
2112 arfkill->asus = asus;
2113
2114 if (dev_id == ASUS_WMI_DEVID_WLAN &&
2115 asus->driver->quirks->hotplug_wireless)
2116 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
2117 &asus_rfkill_wlan_ops, arfkill);
2118 else
2119 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
2120 &asus_rfkill_ops, arfkill);
2121
2122 if (!*rfkill)
2123 return -EINVAL;
2124
2125 if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
2126 (asus->driver->quirks->wapf > 0))
2127 rfkill_set_led_trigger_name(*rfkill, "asus-wlan");
2128
2129 rfkill_init_sw_state(*rfkill, !result);
2130 result = rfkill_register(*rfkill);
2131 if (result) {
2132 rfkill_destroy(*rfkill);
2133 *rfkill = NULL;
2134 return result;
2135 }
2136 return 0;
2137}
2138
2139static void asus_wmi_rfkill_exit(struct asus_wmi *asus)
2140{
2141 if (asus->driver->wlan_ctrl_by_user && ashs_present())
2142 return;
2143
2144 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
2145 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
2146 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
2147 if (asus->wlan.rfkill) {
2148 rfkill_unregister(asus->wlan.rfkill);
2149 rfkill_destroy(asus->wlan.rfkill);
2150 asus->wlan.rfkill = NULL;
2151 }
2152 /*
2153 * Refresh pci hotplug in case the rfkill state was changed after
2154 * asus_unregister_rfkill_notifier()
2155 */
2156 asus_rfkill_hotplug(asus);
2157 if (asus->hotplug_slot.ops)
2158 pci_hp_deregister(&asus->hotplug_slot);
2159 if (asus->hotplug_workqueue)
2160 destroy_workqueue(asus->hotplug_workqueue);
2161
2162 if (asus->bluetooth.rfkill) {
2163 rfkill_unregister(asus->bluetooth.rfkill);
2164 rfkill_destroy(asus->bluetooth.rfkill);
2165 asus->bluetooth.rfkill = NULL;
2166 }
2167 if (asus->wimax.rfkill) {
2168 rfkill_unregister(asus->wimax.rfkill);
2169 rfkill_destroy(asus->wimax.rfkill);
2170 asus->wimax.rfkill = NULL;
2171 }
2172 if (asus->wwan3g.rfkill) {
2173 rfkill_unregister(asus->wwan3g.rfkill);
2174 rfkill_destroy(asus->wwan3g.rfkill);
2175 asus->wwan3g.rfkill = NULL;
2176 }
2177 if (asus->gps.rfkill) {
2178 rfkill_unregister(asus->gps.rfkill);
2179 rfkill_destroy(asus->gps.rfkill);
2180 asus->gps.rfkill = NULL;
2181 }
2182 if (asus->uwb.rfkill) {
2183 rfkill_unregister(asus->uwb.rfkill);
2184 rfkill_destroy(asus->uwb.rfkill);
2185 asus->uwb.rfkill = NULL;
2186 }
2187}
2188
2189static int asus_wmi_rfkill_init(struct asus_wmi *asus)
2190{
2191 int result = 0;
2192
2193 mutex_init(&asus->hotplug_lock);
2194 mutex_init(&asus->wmi_lock);
2195
2196 result = asus_new_rfkill(asus, &asus->wlan, "asus-wlan",
2197 RFKILL_TYPE_WLAN, ASUS_WMI_DEVID_WLAN);
2198
2199 if (result && result != -ENODEV)
2200 goto exit;
2201
2202 result = asus_new_rfkill(asus, &asus->bluetooth,
2203 "asus-bluetooth", RFKILL_TYPE_BLUETOOTH,
2204 ASUS_WMI_DEVID_BLUETOOTH);
2205
2206 if (result && result != -ENODEV)
2207 goto exit;
2208
2209 result = asus_new_rfkill(asus, &asus->wimax, "asus-wimax",
2210 RFKILL_TYPE_WIMAX, ASUS_WMI_DEVID_WIMAX);
2211
2212 if (result && result != -ENODEV)
2213 goto exit;
2214
2215 result = asus_new_rfkill(asus, &asus->wwan3g, "asus-wwan3g",
2216 RFKILL_TYPE_WWAN, ASUS_WMI_DEVID_WWAN3G);
2217
2218 if (result && result != -ENODEV)
2219 goto exit;
2220
2221 result = asus_new_rfkill(asus, &asus->gps, "asus-gps",
2222 RFKILL_TYPE_GPS, ASUS_WMI_DEVID_GPS);
2223
2224 if (result && result != -ENODEV)
2225 goto exit;
2226
2227 result = asus_new_rfkill(asus, &asus->uwb, "asus-uwb",
2228 RFKILL_TYPE_UWB, ASUS_WMI_DEVID_UWB);
2229
2230 if (result && result != -ENODEV)
2231 goto exit;
2232
2233 if (!asus->driver->quirks->hotplug_wireless)
2234 goto exit;
2235
2236 result = asus_setup_pci_hotplug(asus);
2237 /*
2238 * If we get -EBUSY then something else is handling the PCI hotplug -
2239 * don't fail in this case
2240 */
2241 if (result == -EBUSY)
2242 result = 0;
2243
2244 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
2245 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
2246 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
2247 /*
2248 * Refresh pci hotplug in case the rfkill state was changed during
2249 * setup.
2250 */
2251 asus_rfkill_hotplug(asus);
2252
2253exit:
2254 if (result && result != -ENODEV)
2255 asus_wmi_rfkill_exit(asus);
2256
2257 if (result == -ENODEV)
2258 result = 0;
2259
2260 return result;
2261}
2262
2263/* Panel Overdrive ************************************************************/
2264static ssize_t panel_od_show(struct device *dev,
2265 struct device_attribute *attr, char *buf)
2266{
2267 struct asus_wmi *asus = dev_get_drvdata(dev);
2268 int result;
2269
2270 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_PANEL_OD);
2271 if (result < 0)
2272 return result;
2273
2274 return sysfs_emit(buf, "%d\n", result);
2275}
2276
2277static ssize_t panel_od_store(struct device *dev,
2278 struct device_attribute *attr,
2279 const char *buf, size_t count)
2280{
2281 int result, err;
2282 u32 overdrive;
2283
2284 struct asus_wmi *asus = dev_get_drvdata(dev);
2285
2286 result = kstrtou32(buf, 10, &overdrive);
2287 if (result)
2288 return result;
2289
2290 if (overdrive > 1)
2291 return -EINVAL;
2292
2293 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PANEL_OD, overdrive, &result);
2294
2295 if (err) {
2296 pr_warn("Failed to set panel overdrive: %d\n", err);
2297 return err;
2298 }
2299
2300 if (result > 1) {
2301 pr_warn("Failed to set panel overdrive (result): 0x%x\n", result);
2302 return -EIO;
2303 }
2304
2305 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "panel_od");
2306
2307 return count;
2308}
2309static DEVICE_ATTR_RW(panel_od);
2310
2311/* Bootup sound ***************************************************************/
2312
2313static ssize_t boot_sound_show(struct device *dev,
2314 struct device_attribute *attr, char *buf)
2315{
2316 struct asus_wmi *asus = dev_get_drvdata(dev);
2317 int result;
2318
2319 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_BOOT_SOUND);
2320 if (result < 0)
2321 return result;
2322
2323 return sysfs_emit(buf, "%d\n", result);
2324}
2325
2326static ssize_t boot_sound_store(struct device *dev,
2327 struct device_attribute *attr,
2328 const char *buf, size_t count)
2329{
2330 int result, err;
2331 u32 snd;
2332
2333 struct asus_wmi *asus = dev_get_drvdata(dev);
2334
2335 result = kstrtou32(buf, 10, &snd);
2336 if (result)
2337 return result;
2338
2339 if (snd > 1)
2340 return -EINVAL;
2341
2342 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BOOT_SOUND, snd, &result);
2343 if (err) {
2344 pr_warn("Failed to set boot sound: %d\n", err);
2345 return err;
2346 }
2347
2348 if (result > 1) {
2349 pr_warn("Failed to set panel boot sound (result): 0x%x\n", result);
2350 return -EIO;
2351 }
2352
2353 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "boot_sound");
2354
2355 return count;
2356}
2357static DEVICE_ATTR_RW(boot_sound);
2358
2359/* Mini-LED mode **************************************************************/
2360static ssize_t mini_led_mode_show(struct device *dev,
2361 struct device_attribute *attr, char *buf)
2362{
2363 struct asus_wmi *asus = dev_get_drvdata(dev);
2364 u32 value;
2365 int err;
2366
2367 err = asus_wmi_get_devstate(asus, asus->mini_led_dev_id, &value);
2368 if (err < 0)
2369 return err;
2370 value = value & ASUS_MINI_LED_MODE_MASK;
2371
2372 /*
2373 * Remap the mode values to match previous generation mini-led. The last gen
2374 * WMI 0 == off, while on this version WMI 2 ==off (flipped).
2375 */
2376 if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) {
2377 switch (value) {
2378 case ASUS_MINI_LED_2024_WEAK:
2379 value = ASUS_MINI_LED_ON;
2380 break;
2381 case ASUS_MINI_LED_2024_STRONG:
2382 value = ASUS_MINI_LED_STRONG_MODE;
2383 break;
2384 case ASUS_MINI_LED_2024_OFF:
2385 value = ASUS_MINI_LED_OFF;
2386 break;
2387 }
2388 }
2389
2390 return sysfs_emit(buf, "%d\n", value);
2391}
2392
2393static ssize_t mini_led_mode_store(struct device *dev,
2394 struct device_attribute *attr,
2395 const char *buf, size_t count)
2396{
2397 int result, err;
2398 u32 mode;
2399
2400 struct asus_wmi *asus = dev_get_drvdata(dev);
2401
2402 result = kstrtou32(buf, 10, &mode);
2403 if (result)
2404 return result;
2405
2406 if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE &&
2407 mode > ASUS_MINI_LED_ON)
2408 return -EINVAL;
2409 if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2 &&
2410 mode > ASUS_MINI_LED_STRONG_MODE)
2411 return -EINVAL;
2412
2413 /*
2414 * Remap the mode values so expected behaviour is the same as the last
2415 * generation of mini-LED with 0 == off, 1 == on.
2416 */
2417 if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) {
2418 switch (mode) {
2419 case ASUS_MINI_LED_OFF:
2420 mode = ASUS_MINI_LED_2024_OFF;
2421 break;
2422 case ASUS_MINI_LED_ON:
2423 mode = ASUS_MINI_LED_2024_WEAK;
2424 break;
2425 case ASUS_MINI_LED_STRONG_MODE:
2426 mode = ASUS_MINI_LED_2024_STRONG;
2427 break;
2428 }
2429 }
2430
2431 err = asus_wmi_set_devstate(asus->mini_led_dev_id, mode, &result);
2432 if (err) {
2433 pr_warn("Failed to set mini-LED: %d\n", err);
2434 return err;
2435 }
2436
2437 if (result > 1) {
2438 pr_warn("Failed to set mini-LED mode (result): 0x%x\n", result);
2439 return -EIO;
2440 }
2441
2442 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "mini_led_mode");
2443
2444 return count;
2445}
2446static DEVICE_ATTR_RW(mini_led_mode);
2447
2448static ssize_t available_mini_led_mode_show(struct device *dev,
2449 struct device_attribute *attr, char *buf)
2450{
2451 struct asus_wmi *asus = dev_get_drvdata(dev);
2452
2453 switch (asus->mini_led_dev_id) {
2454 case ASUS_WMI_DEVID_MINI_LED_MODE:
2455 return sysfs_emit(buf, "0 1\n");
2456 case ASUS_WMI_DEVID_MINI_LED_MODE2:
2457 return sysfs_emit(buf, "0 1 2\n");
2458 }
2459
2460 return sysfs_emit(buf, "0\n");
2461}
2462
2463static DEVICE_ATTR_RO(available_mini_led_mode);
2464
2465/* Quirks *********************************************************************/
2466
2467static void asus_wmi_set_xusb2pr(struct asus_wmi *asus)
2468{
2469 struct pci_dev *xhci_pdev;
2470 u32 orig_ports_available;
2471 u32 ports_available = asus->driver->quirks->xusb2pr;
2472
2473 xhci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
2474 PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI,
2475 NULL);
2476
2477 if (!xhci_pdev)
2478 return;
2479
2480 pci_read_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
2481 &orig_ports_available);
2482
2483 pci_write_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
2484 cpu_to_le32(ports_available));
2485
2486 pci_dev_put(xhci_pdev);
2487
2488 pr_info("set USB_INTEL_XUSB2PR old: 0x%04x, new: 0x%04x\n",
2489 orig_ports_available, ports_available);
2490}
2491
2492/*
2493 * Some devices dont support or have borcken get_als method
2494 * but still support set method.
2495 */
2496static void asus_wmi_set_als(void)
2497{
2498 asus_wmi_set_devstate(ASUS_WMI_DEVID_ALS_ENABLE, 1, NULL);
2499}
2500
2501/* Hwmon device ***************************************************************/
2502
2503static int asus_agfn_fan_speed_read(struct asus_wmi *asus, int fan,
2504 int *speed)
2505{
2506 struct agfn_fan_args args = {
2507 .agfn.len = sizeof(args),
2508 .agfn.mfun = ASUS_FAN_MFUN,
2509 .agfn.sfun = ASUS_FAN_SFUN_READ,
2510 .fan = fan,
2511 .speed = 0,
2512 };
2513 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
2514 int status;
2515
2516 if (fan != 1)
2517 return -EINVAL;
2518
2519 status = asus_wmi_evaluate_method_agfn(input);
2520
2521 if (status || args.agfn.err)
2522 return -ENXIO;
2523
2524 if (speed)
2525 *speed = args.speed;
2526
2527 return 0;
2528}
2529
2530static int asus_agfn_fan_speed_write(struct asus_wmi *asus, int fan,
2531 int *speed)
2532{
2533 struct agfn_fan_args args = {
2534 .agfn.len = sizeof(args),
2535 .agfn.mfun = ASUS_FAN_MFUN,
2536 .agfn.sfun = ASUS_FAN_SFUN_WRITE,
2537 .fan = fan,
2538 .speed = speed ? *speed : 0,
2539 };
2540 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
2541 int status;
2542
2543 /* 1: for setting 1st fan's speed 0: setting auto mode */
2544 if (fan != 1 && fan != 0)
2545 return -EINVAL;
2546
2547 status = asus_wmi_evaluate_method_agfn(input);
2548
2549 if (status || args.agfn.err)
2550 return -ENXIO;
2551
2552 if (speed && fan == 1)
2553 asus->agfn_pwm = *speed;
2554
2555 return 0;
2556}
2557
2558/*
2559 * Check if we can read the speed of one fan. If true we assume we can also
2560 * control it.
2561 */
2562static bool asus_wmi_has_agfn_fan(struct asus_wmi *asus)
2563{
2564 int status;
2565 int speed;
2566 u32 value;
2567
2568 status = asus_agfn_fan_speed_read(asus, 1, &speed);
2569 if (status != 0)
2570 return false;
2571
2572 status = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
2573 if (status != 0)
2574 return false;
2575
2576 /*
2577 * We need to find a better way, probably using sfun,
2578 * bits or spec ...
2579 * Currently we disable it if:
2580 * - ASUS_WMI_UNSUPPORTED_METHOD is returned
2581 * - reverved bits are non-zero
2582 * - sfun and presence bit are not set
2583 */
2584 return !(value == ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000
2585 || (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT)));
2586}
2587
2588static int asus_fan_set_auto(struct asus_wmi *asus)
2589{
2590 int status;
2591 u32 retval;
2592
2593 switch (asus->fan_type) {
2594 case FAN_TYPE_SPEC83:
2595 status = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL,
2596 0, &retval);
2597 if (status)
2598 return status;
2599
2600 if (retval != 1)
2601 return -EIO;
2602 break;
2603
2604 case FAN_TYPE_AGFN:
2605 status = asus_agfn_fan_speed_write(asus, 0, NULL);
2606 if (status)
2607 return -ENXIO;
2608 break;
2609
2610 default:
2611 return -ENXIO;
2612 }
2613
2614 /*
2615 * Modern models like the G713 also have GPU fan control (this is not AGFN)
2616 */
2617 if (asus->gpu_fan_type == FAN_TYPE_SPEC83) {
2618 status = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
2619 0, &retval);
2620 if (status)
2621 return status;
2622
2623 if (retval != 1)
2624 return -EIO;
2625 }
2626
2627 return 0;
2628}
2629
2630static ssize_t pwm1_show(struct device *dev,
2631 struct device_attribute *attr,
2632 char *buf)
2633{
2634 struct asus_wmi *asus = dev_get_drvdata(dev);
2635 int err;
2636 int value;
2637
2638 /* If we already set a value then just return it */
2639 if (asus->agfn_pwm >= 0)
2640 return sysfs_emit(buf, "%d\n", asus->agfn_pwm);
2641
2642 /*
2643 * If we haven't set already set a value through the AGFN interface,
2644 * we read a current value through the (now-deprecated) FAN_CTRL device.
2645 */
2646 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
2647 if (err < 0)
2648 return err;
2649
2650 value &= 0xFF;
2651
2652 if (value == 1) /* Low Speed */
2653 value = 85;
2654 else if (value == 2)
2655 value = 170;
2656 else if (value == 3)
2657 value = 255;
2658 else if (value) {
2659 pr_err("Unknown fan speed %#x\n", value);
2660 value = -1;
2661 }
2662
2663 return sysfs_emit(buf, "%d\n", value);
2664}
2665
2666static ssize_t pwm1_store(struct device *dev,
2667 struct device_attribute *attr,
2668 const char *buf, size_t count) {
2669 struct asus_wmi *asus = dev_get_drvdata(dev);
2670 int value;
2671 int state;
2672 int ret;
2673
2674 ret = kstrtouint(buf, 10, &value);
2675 if (ret)
2676 return ret;
2677
2678 value = clamp(value, 0, 255);
2679
2680 state = asus_agfn_fan_speed_write(asus, 1, &value);
2681 if (state)
2682 pr_warn("Setting fan speed failed: %d\n", state);
2683 else
2684 asus->fan_pwm_mode = ASUS_FAN_CTRL_MANUAL;
2685
2686 return count;
2687}
2688
2689static ssize_t fan1_input_show(struct device *dev,
2690 struct device_attribute *attr,
2691 char *buf)
2692{
2693 struct asus_wmi *asus = dev_get_drvdata(dev);
2694 int value;
2695 int ret;
2696
2697 switch (asus->fan_type) {
2698 case FAN_TYPE_SPEC83:
2699 ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL,
2700 &value);
2701 if (ret < 0)
2702 return ret;
2703
2704 value &= 0xffff;
2705 break;
2706
2707 case FAN_TYPE_AGFN:
2708 /* no speed readable on manual mode */
2709 if (asus->fan_pwm_mode == ASUS_FAN_CTRL_MANUAL)
2710 return -ENXIO;
2711
2712 ret = asus_agfn_fan_speed_read(asus, 1, &value);
2713 if (ret) {
2714 pr_warn("reading fan speed failed: %d\n", ret);
2715 return -ENXIO;
2716 }
2717 break;
2718
2719 default:
2720 return -ENXIO;
2721 }
2722
2723 return sysfs_emit(buf, "%d\n", value < 0 ? -1 : value * 100);
2724}
2725
2726static ssize_t pwm1_enable_show(struct device *dev,
2727 struct device_attribute *attr,
2728 char *buf)
2729{
2730 struct asus_wmi *asus = dev_get_drvdata(dev);
2731
2732 /*
2733 * Just read back the cached pwm mode.
2734 *
2735 * For the CPU_FAN device, the spec indicates that we should be
2736 * able to read the device status and consult bit 19 to see if we
2737 * are in Full On or Automatic mode. However, this does not work
2738 * in practice on X532FL at least (the bit is always 0) and there's
2739 * also nothing in the DSDT to indicate that this behaviour exists.
2740 */
2741 return sysfs_emit(buf, "%d\n", asus->fan_pwm_mode);
2742}
2743
2744static ssize_t pwm1_enable_store(struct device *dev,
2745 struct device_attribute *attr,
2746 const char *buf, size_t count)
2747{
2748 struct asus_wmi *asus = dev_get_drvdata(dev);
2749 int status = 0;
2750 int state;
2751 int value;
2752 int ret;
2753 u32 retval;
2754
2755 ret = kstrtouint(buf, 10, &state);
2756 if (ret)
2757 return ret;
2758
2759 if (asus->fan_type == FAN_TYPE_SPEC83) {
2760 switch (state) { /* standard documented hwmon values */
2761 case ASUS_FAN_CTRL_FULLSPEED:
2762 value = 1;
2763 break;
2764 case ASUS_FAN_CTRL_AUTO:
2765 value = 0;
2766 break;
2767 default:
2768 return -EINVAL;
2769 }
2770
2771 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL,
2772 value, &retval);
2773 if (ret)
2774 return ret;
2775
2776 if (retval != 1)
2777 return -EIO;
2778 } else if (asus->fan_type == FAN_TYPE_AGFN) {
2779 switch (state) {
2780 case ASUS_FAN_CTRL_MANUAL:
2781 break;
2782
2783 case ASUS_FAN_CTRL_AUTO:
2784 status = asus_fan_set_auto(asus);
2785 if (status)
2786 return status;
2787 break;
2788
2789 default:
2790 return -EINVAL;
2791 }
2792 }
2793
2794 asus->fan_pwm_mode = state;
2795
2796 /* Must set to disabled if mode is toggled */
2797 if (asus->cpu_fan_curve_available)
2798 asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false;
2799 if (asus->gpu_fan_curve_available)
2800 asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false;
2801 if (asus->mid_fan_curve_available)
2802 asus->custom_fan_curves[FAN_CURVE_DEV_MID].enabled = false;
2803
2804 return count;
2805}
2806
2807static ssize_t asus_hwmon_temp1(struct device *dev,
2808 struct device_attribute *attr,
2809 char *buf)
2810{
2811 struct asus_wmi *asus = dev_get_drvdata(dev);
2812 u32 value;
2813 int err;
2814
2815 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_THERMAL_CTRL, &value);
2816 if (err < 0)
2817 return err;
2818
2819 return sysfs_emit(buf, "%ld\n",
2820 deci_kelvin_to_millicelsius(value & 0xFFFF));
2821}
2822
2823/* GPU fan on modern ROG laptops */
2824static ssize_t fan2_input_show(struct device *dev,
2825 struct device_attribute *attr,
2826 char *buf)
2827{
2828 struct asus_wmi *asus = dev_get_drvdata(dev);
2829 int value;
2830 int ret;
2831
2832 ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL, &value);
2833 if (ret < 0)
2834 return ret;
2835
2836 value &= 0xffff;
2837
2838 return sysfs_emit(buf, "%d\n", value * 100);
2839}
2840
2841/* Middle/Center fan on modern ROG laptops */
2842static ssize_t fan3_input_show(struct device *dev,
2843 struct device_attribute *attr,
2844 char *buf)
2845{
2846 struct asus_wmi *asus = dev_get_drvdata(dev);
2847 int value;
2848 int ret;
2849
2850 ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_MID_FAN_CTRL, &value);
2851 if (ret < 0)
2852 return ret;
2853
2854 value &= 0xffff;
2855
2856 return sysfs_emit(buf, "%d\n", value * 100);
2857}
2858
2859static ssize_t pwm2_enable_show(struct device *dev,
2860 struct device_attribute *attr,
2861 char *buf)
2862{
2863 struct asus_wmi *asus = dev_get_drvdata(dev);
2864
2865 return sysfs_emit(buf, "%d\n", asus->gpu_fan_pwm_mode);
2866}
2867
2868static ssize_t pwm2_enable_store(struct device *dev,
2869 struct device_attribute *attr,
2870 const char *buf, size_t count)
2871{
2872 struct asus_wmi *asus = dev_get_drvdata(dev);
2873 int state;
2874 int value;
2875 int ret;
2876 u32 retval;
2877
2878 ret = kstrtouint(buf, 10, &state);
2879 if (ret)
2880 return ret;
2881
2882 switch (state) { /* standard documented hwmon values */
2883 case ASUS_FAN_CTRL_FULLSPEED:
2884 value = 1;
2885 break;
2886 case ASUS_FAN_CTRL_AUTO:
2887 value = 0;
2888 break;
2889 default:
2890 return -EINVAL;
2891 }
2892
2893 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
2894 value, &retval);
2895 if (ret)
2896 return ret;
2897
2898 if (retval != 1)
2899 return -EIO;
2900
2901 asus->gpu_fan_pwm_mode = state;
2902 return count;
2903}
2904
2905static ssize_t pwm3_enable_show(struct device *dev,
2906 struct device_attribute *attr,
2907 char *buf)
2908{
2909 struct asus_wmi *asus = dev_get_drvdata(dev);
2910
2911 return sysfs_emit(buf, "%d\n", asus->mid_fan_pwm_mode);
2912}
2913
2914static ssize_t pwm3_enable_store(struct device *dev,
2915 struct device_attribute *attr,
2916 const char *buf, size_t count)
2917{
2918 struct asus_wmi *asus = dev_get_drvdata(dev);
2919 int state;
2920 int value;
2921 int ret;
2922 u32 retval;
2923
2924 ret = kstrtouint(buf, 10, &state);
2925 if (ret)
2926 return ret;
2927
2928 switch (state) { /* standard documented hwmon values */
2929 case ASUS_FAN_CTRL_FULLSPEED:
2930 value = 1;
2931 break;
2932 case ASUS_FAN_CTRL_AUTO:
2933 value = 0;
2934 break;
2935 default:
2936 return -EINVAL;
2937 }
2938
2939 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_MID_FAN_CTRL,
2940 value, &retval);
2941 if (ret)
2942 return ret;
2943
2944 if (retval != 1)
2945 return -EIO;
2946
2947 asus->mid_fan_pwm_mode = state;
2948 return count;
2949}
2950
2951/* Fan1 */
2952static DEVICE_ATTR_RW(pwm1);
2953static DEVICE_ATTR_RW(pwm1_enable);
2954static DEVICE_ATTR_RO(fan1_input);
2955static DEVICE_STRING_ATTR_RO(fan1_label, 0444, ASUS_FAN_DESC);
2956
2957/* Fan2 - GPU fan */
2958static DEVICE_ATTR_RW(pwm2_enable);
2959static DEVICE_ATTR_RO(fan2_input);
2960static DEVICE_STRING_ATTR_RO(fan2_label, 0444, ASUS_GPU_FAN_DESC);
2961/* Fan3 - Middle/center fan */
2962static DEVICE_ATTR_RW(pwm3_enable);
2963static DEVICE_ATTR_RO(fan3_input);
2964static DEVICE_STRING_ATTR_RO(fan3_label, 0444, ASUS_MID_FAN_DESC);
2965
2966/* Temperature */
2967static DEVICE_ATTR(temp1_input, S_IRUGO, asus_hwmon_temp1, NULL);
2968
2969static struct attribute *hwmon_attributes[] = {
2970 &dev_attr_pwm1.attr,
2971 &dev_attr_pwm1_enable.attr,
2972 &dev_attr_pwm2_enable.attr,
2973 &dev_attr_pwm3_enable.attr,
2974 &dev_attr_fan1_input.attr,
2975 &dev_attr_fan1_label.attr.attr,
2976 &dev_attr_fan2_input.attr,
2977 &dev_attr_fan2_label.attr.attr,
2978 &dev_attr_fan3_input.attr,
2979 &dev_attr_fan3_label.attr.attr,
2980
2981 &dev_attr_temp1_input.attr,
2982 NULL
2983};
2984
2985static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
2986 struct attribute *attr, int idx)
2987{
2988 struct device *dev = kobj_to_dev(kobj);
2989 struct asus_wmi *asus = dev_get_drvdata(dev->parent);
2990 u32 value = ASUS_WMI_UNSUPPORTED_METHOD;
2991
2992 if (attr == &dev_attr_pwm1.attr) {
2993 if (asus->fan_type != FAN_TYPE_AGFN)
2994 return 0;
2995 } else if (attr == &dev_attr_fan1_input.attr
2996 || attr == &dev_attr_fan1_label.attr.attr
2997 || attr == &dev_attr_pwm1_enable.attr) {
2998 if (asus->fan_type == FAN_TYPE_NONE)
2999 return 0;
3000 } else if (attr == &dev_attr_fan2_input.attr
3001 || attr == &dev_attr_fan2_label.attr.attr
3002 || attr == &dev_attr_pwm2_enable.attr) {
3003 if (asus->gpu_fan_type == FAN_TYPE_NONE)
3004 return 0;
3005 } else if (attr == &dev_attr_fan3_input.attr
3006 || attr == &dev_attr_fan3_label.attr.attr
3007 || attr == &dev_attr_pwm3_enable.attr) {
3008 if (asus->mid_fan_type == FAN_TYPE_NONE)
3009 return 0;
3010 } else if (attr == &dev_attr_temp1_input.attr) {
3011 int err = asus_wmi_get_devstate(asus,
3012 ASUS_WMI_DEVID_THERMAL_CTRL,
3013 &value);
3014
3015 if (err < 0)
3016 return 0; /* can't return negative here */
3017
3018 /*
3019 * If the temperature value in deci-Kelvin is near the absolute
3020 * zero temperature, something is clearly wrong
3021 */
3022 if (value == 0 || value == 1)
3023 return 0;
3024 }
3025
3026 return attr->mode;
3027}
3028
3029static const struct attribute_group hwmon_attribute_group = {
3030 .is_visible = asus_hwmon_sysfs_is_visible,
3031 .attrs = hwmon_attributes
3032};
3033__ATTRIBUTE_GROUPS(hwmon_attribute);
3034
3035static int asus_wmi_hwmon_init(struct asus_wmi *asus)
3036{
3037 struct device *dev = &asus->platform_device->dev;
3038 struct device *hwmon;
3039
3040 hwmon = devm_hwmon_device_register_with_groups(dev, "asus", asus,
3041 hwmon_attribute_groups);
3042
3043 if (IS_ERR(hwmon)) {
3044 pr_err("Could not register asus hwmon device\n");
3045 return PTR_ERR(hwmon);
3046 }
3047 return 0;
3048}
3049
3050static int asus_wmi_fan_init(struct asus_wmi *asus)
3051{
3052 asus->gpu_fan_type = FAN_TYPE_NONE;
3053 asus->mid_fan_type = FAN_TYPE_NONE;
3054 asus->fan_type = FAN_TYPE_NONE;
3055 asus->agfn_pwm = -1;
3056
3057 if (asus->driver->quirks->wmi_ignore_fan)
3058 asus->fan_type = FAN_TYPE_NONE;
3059 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL))
3060 asus->fan_type = FAN_TYPE_SPEC83;
3061 else if (asus_wmi_has_agfn_fan(asus))
3062 asus->fan_type = FAN_TYPE_AGFN;
3063
3064 /* Modern models like G713 also have GPU fan control */
3065 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL))
3066 asus->gpu_fan_type = FAN_TYPE_SPEC83;
3067
3068 /* Some models also have a center/middle fan */
3069 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MID_FAN_CTRL))
3070 asus->mid_fan_type = FAN_TYPE_SPEC83;
3071
3072 if (asus->fan_type == FAN_TYPE_NONE)
3073 return -ENODEV;
3074
3075 asus_fan_set_auto(asus);
3076 asus->fan_pwm_mode = ASUS_FAN_CTRL_AUTO;
3077 return 0;
3078}
3079
3080/* Fan mode *******************************************************************/
3081
3082static int fan_boost_mode_check_present(struct asus_wmi *asus)
3083{
3084 u32 result;
3085 int err;
3086
3087 asus->fan_boost_mode_available = false;
3088
3089 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_BOOST_MODE,
3090 &result);
3091 if (err) {
3092 if (err == -ENODEV)
3093 return 0;
3094 else
3095 return err;
3096 }
3097
3098 if ((result & ASUS_WMI_DSTS_PRESENCE_BIT) &&
3099 (result & ASUS_FAN_BOOST_MODES_MASK)) {
3100 asus->fan_boost_mode_available = true;
3101 asus->fan_boost_mode_mask = result & ASUS_FAN_BOOST_MODES_MASK;
3102 }
3103
3104 return 0;
3105}
3106
3107static int fan_boost_mode_write(struct asus_wmi *asus)
3108{
3109 u32 retval;
3110 u8 value;
3111 int err;
3112
3113 value = asus->fan_boost_mode;
3114
3115 pr_info("Set fan boost mode: %u\n", value);
3116 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_FAN_BOOST_MODE, value,
3117 &retval);
3118
3119 sysfs_notify(&asus->platform_device->dev.kobj, NULL,
3120 "fan_boost_mode");
3121
3122 if (err) {
3123 pr_warn("Failed to set fan boost mode: %d\n", err);
3124 return err;
3125 }
3126
3127 if (retval != 1) {
3128 pr_warn("Failed to set fan boost mode (retval): 0x%x\n",
3129 retval);
3130 return -EIO;
3131 }
3132
3133 return 0;
3134}
3135
3136static int fan_boost_mode_switch_next(struct asus_wmi *asus)
3137{
3138 u8 mask = asus->fan_boost_mode_mask;
3139
3140 if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_NORMAL) {
3141 if (mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK)
3142 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_OVERBOOST;
3143 else if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK)
3144 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT;
3145 } else if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) {
3146 if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK)
3147 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT;
3148 else
3149 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL;
3150 } else {
3151 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL;
3152 }
3153
3154 return fan_boost_mode_write(asus);
3155}
3156
3157static ssize_t fan_boost_mode_show(struct device *dev,
3158 struct device_attribute *attr, char *buf)
3159{
3160 struct asus_wmi *asus = dev_get_drvdata(dev);
3161
3162 return sysfs_emit(buf, "%d\n", asus->fan_boost_mode);
3163}
3164
3165static ssize_t fan_boost_mode_store(struct device *dev,
3166 struct device_attribute *attr,
3167 const char *buf, size_t count)
3168{
3169 struct asus_wmi *asus = dev_get_drvdata(dev);
3170 u8 mask = asus->fan_boost_mode_mask;
3171 u8 new_mode;
3172 int result;
3173
3174 result = kstrtou8(buf, 10, &new_mode);
3175 if (result < 0) {
3176 pr_warn("Trying to store invalid value\n");
3177 return result;
3178 }
3179
3180 if (new_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) {
3181 if (!(mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK))
3182 return -EINVAL;
3183 } else if (new_mode == ASUS_FAN_BOOST_MODE_SILENT) {
3184 if (!(mask & ASUS_FAN_BOOST_MODE_SILENT_MASK))
3185 return -EINVAL;
3186 } else if (new_mode != ASUS_FAN_BOOST_MODE_NORMAL) {
3187 return -EINVAL;
3188 }
3189
3190 asus->fan_boost_mode = new_mode;
3191 fan_boost_mode_write(asus);
3192
3193 return count;
3194}
3195
3196// Fan boost mode: 0 - normal, 1 - overboost, 2 - silent
3197static DEVICE_ATTR_RW(fan_boost_mode);
3198
3199/* Custom fan curves **********************************************************/
3200
3201static void fan_curve_copy_from_buf(struct fan_curve_data *data, u8 *buf)
3202{
3203 int i;
3204
3205 for (i = 0; i < FAN_CURVE_POINTS; i++) {
3206 data->temps[i] = buf[i];
3207 }
3208
3209 for (i = 0; i < FAN_CURVE_POINTS; i++) {
3210 data->percents[i] =
3211 255 * buf[i + FAN_CURVE_POINTS] / 100;
3212 }
3213}
3214
3215static int fan_curve_get_factory_default(struct asus_wmi *asus, u32 fan_dev)
3216{
3217 struct fan_curve_data *curves;
3218 u8 buf[FAN_CURVE_BUF_LEN];
3219 int err, fan_idx;
3220 u8 mode = 0;
3221
3222 if (asus->throttle_thermal_policy_dev)
3223 mode = asus->throttle_thermal_policy_mode;
3224 /* DEVID_<C/G>PU_FAN_CURVE is switched for OVERBOOST vs SILENT */
3225 if (mode == 2)
3226 mode = 1;
3227 else if (mode == 1)
3228 mode = 2;
3229
3230 err = asus_wmi_evaluate_method_buf(asus->dsts_id, fan_dev, mode, buf,
3231 FAN_CURVE_BUF_LEN);
3232 if (err) {
3233 pr_warn("%s (0x%08x) failed: %d\n", __func__, fan_dev, err);
3234 return err;
3235 }
3236
3237 fan_idx = FAN_CURVE_DEV_CPU;
3238 if (fan_dev == ASUS_WMI_DEVID_GPU_FAN_CURVE)
3239 fan_idx = FAN_CURVE_DEV_GPU;
3240
3241 if (fan_dev == ASUS_WMI_DEVID_MID_FAN_CURVE)
3242 fan_idx = FAN_CURVE_DEV_MID;
3243
3244 curves = &asus->custom_fan_curves[fan_idx];
3245 curves->device_id = fan_dev;
3246
3247 fan_curve_copy_from_buf(curves, buf);
3248 return 0;
3249}
3250
3251/* Check if capability exists, and populate defaults */
3252static int fan_curve_check_present(struct asus_wmi *asus, bool *available,
3253 u32 fan_dev)
3254{
3255 int err;
3256
3257 *available = false;
3258
3259 if (asus->fan_type == FAN_TYPE_NONE)
3260 return 0;
3261
3262 err = fan_curve_get_factory_default(asus, fan_dev);
3263 if (err) {
3264 return 0;
3265 }
3266
3267 *available = true;
3268 return 0;
3269}
3270
3271/* Determine which fan the attribute is for if SENSOR_ATTR */
3272static struct fan_curve_data *fan_curve_attr_select(struct asus_wmi *asus,
3273 struct device_attribute *attr)
3274{
3275 int index = to_sensor_dev_attr(attr)->index;
3276
3277 return &asus->custom_fan_curves[index];
3278}
3279
3280/* Determine which fan the attribute is for if SENSOR_ATTR_2 */
3281static struct fan_curve_data *fan_curve_attr_2_select(struct asus_wmi *asus,
3282 struct device_attribute *attr)
3283{
3284 int nr = to_sensor_dev_attr_2(attr)->nr;
3285
3286 return &asus->custom_fan_curves[nr & ~FAN_CURVE_PWM_MASK];
3287}
3288
3289static ssize_t fan_curve_show(struct device *dev,
3290 struct device_attribute *attr, char *buf)
3291{
3292 struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr);
3293 struct asus_wmi *asus = dev_get_drvdata(dev);
3294 struct fan_curve_data *data;
3295 int value, pwm, index;
3296
3297 data = fan_curve_attr_2_select(asus, attr);
3298 pwm = dev_attr->nr & FAN_CURVE_PWM_MASK;
3299 index = dev_attr->index;
3300
3301 if (pwm)
3302 value = data->percents[index];
3303 else
3304 value = data->temps[index];
3305
3306 return sysfs_emit(buf, "%d\n", value);
3307}
3308
3309/*
3310 * "fan_dev" is the related WMI method such as ASUS_WMI_DEVID_CPU_FAN_CURVE.
3311 */
3312static int fan_curve_write(struct asus_wmi *asus,
3313 struct fan_curve_data *data)
3314{
3315 u32 arg1 = 0, arg2 = 0, arg3 = 0, arg4 = 0;
3316 u8 *percents = data->percents;
3317 u8 *temps = data->temps;
3318 int ret, i, shift = 0;
3319
3320 if (!data->enabled)
3321 return 0;
3322
3323 for (i = 0; i < FAN_CURVE_POINTS / 2; i++) {
3324 arg1 += (temps[i]) << shift;
3325 arg2 += (temps[i + 4]) << shift;
3326 /* Scale to percentage for device */
3327 arg3 += (100 * percents[i] / 255) << shift;
3328 arg4 += (100 * percents[i + 4] / 255) << shift;
3329 shift += 8;
3330 }
3331
3332 return asus_wmi_evaluate_method5(ASUS_WMI_METHODID_DEVS,
3333 data->device_id,
3334 arg1, arg2, arg3, arg4, &ret);
3335}
3336
3337static ssize_t fan_curve_store(struct device *dev,
3338 struct device_attribute *attr, const char *buf,
3339 size_t count)
3340{
3341 struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr);
3342 struct asus_wmi *asus = dev_get_drvdata(dev);
3343 struct fan_curve_data *data;
3344 int err, pwm, index;
3345 u8 value;
3346
3347 data = fan_curve_attr_2_select(asus, attr);
3348 pwm = dev_attr->nr & FAN_CURVE_PWM_MASK;
3349 index = dev_attr->index;
3350
3351 err = kstrtou8(buf, 10, &value);
3352 if (err < 0)
3353 return err;
3354
3355 if (pwm)
3356 data->percents[index] = value;
3357 else
3358 data->temps[index] = value;
3359
3360 /*
3361 * Mark as disabled so the user has to explicitly enable to apply a
3362 * changed fan curve. This prevents potential lockups from writing out
3363 * many changes as one-write-per-change.
3364 */
3365 data->enabled = false;
3366
3367 return count;
3368}
3369
3370static ssize_t fan_curve_enable_show(struct device *dev,
3371 struct device_attribute *attr, char *buf)
3372{
3373 struct asus_wmi *asus = dev_get_drvdata(dev);
3374 struct fan_curve_data *data;
3375 int out = 2;
3376
3377 data = fan_curve_attr_select(asus, attr);
3378
3379 if (data->enabled)
3380 out = 1;
3381
3382 return sysfs_emit(buf, "%d\n", out);
3383}
3384
3385static ssize_t fan_curve_enable_store(struct device *dev,
3386 struct device_attribute *attr,
3387 const char *buf, size_t count)
3388{
3389 struct asus_wmi *asus = dev_get_drvdata(dev);
3390 struct fan_curve_data *data;
3391 int value, err;
3392
3393 data = fan_curve_attr_select(asus, attr);
3394
3395 err = kstrtoint(buf, 10, &value);
3396 if (err < 0)
3397 return err;
3398
3399 switch (value) {
3400 case 1:
3401 data->enabled = true;
3402 break;
3403 case 2:
3404 data->enabled = false;
3405 break;
3406 /*
3407 * Auto + reset the fan curve data to defaults. Make it an explicit
3408 * option so that users don't accidentally overwrite a set fan curve.
3409 */
3410 case 3:
3411 err = fan_curve_get_factory_default(asus, data->device_id);
3412 if (err)
3413 return err;
3414 data->enabled = false;
3415 break;
3416 default:
3417 return -EINVAL;
3418 }
3419
3420 if (data->enabled) {
3421 err = fan_curve_write(asus, data);
3422 if (err)
3423 return err;
3424 } else {
3425 /*
3426 * For machines with throttle this is the only way to reset fans
3427 * to default mode of operation (does not erase curve data).
3428 */
3429 if (asus->throttle_thermal_policy_dev) {
3430 err = throttle_thermal_policy_write(asus);
3431 if (err)
3432 return err;
3433 /* Similar is true for laptops with this fan */
3434 } else if (asus->fan_type == FAN_TYPE_SPEC83) {
3435 err = asus_fan_set_auto(asus);
3436 if (err)
3437 return err;
3438 } else {
3439 /* Safeguard against fautly ACPI tables */
3440 err = fan_curve_get_factory_default(asus, data->device_id);
3441 if (err)
3442 return err;
3443 err = fan_curve_write(asus, data);
3444 if (err)
3445 return err;
3446 }
3447 }
3448 return count;
3449}
3450
3451/* CPU */
3452static SENSOR_DEVICE_ATTR_RW(pwm1_enable, fan_curve_enable, FAN_CURVE_DEV_CPU);
3453static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_temp, fan_curve,
3454 FAN_CURVE_DEV_CPU, 0);
3455static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_temp, fan_curve,
3456 FAN_CURVE_DEV_CPU, 1);
3457static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_temp, fan_curve,
3458 FAN_CURVE_DEV_CPU, 2);
3459static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_temp, fan_curve,
3460 FAN_CURVE_DEV_CPU, 3);
3461static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_temp, fan_curve,
3462 FAN_CURVE_DEV_CPU, 4);
3463static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_temp, fan_curve,
3464 FAN_CURVE_DEV_CPU, 5);
3465static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_temp, fan_curve,
3466 FAN_CURVE_DEV_CPU, 6);
3467static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_temp, fan_curve,
3468 FAN_CURVE_DEV_CPU, 7);
3469
3470static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_pwm, fan_curve,
3471 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 0);
3472static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_pwm, fan_curve,
3473 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 1);
3474static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_pwm, fan_curve,
3475 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 2);
3476static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_pwm, fan_curve,
3477 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 3);
3478static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_pwm, fan_curve,
3479 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 4);
3480static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_pwm, fan_curve,
3481 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 5);
3482static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_pwm, fan_curve,
3483 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 6);
3484static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_pwm, fan_curve,
3485 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 7);
3486
3487/* GPU */
3488static SENSOR_DEVICE_ATTR_RW(pwm2_enable, fan_curve_enable, FAN_CURVE_DEV_GPU);
3489static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_temp, fan_curve,
3490 FAN_CURVE_DEV_GPU, 0);
3491static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_temp, fan_curve,
3492 FAN_CURVE_DEV_GPU, 1);
3493static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_temp, fan_curve,
3494 FAN_CURVE_DEV_GPU, 2);
3495static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_temp, fan_curve,
3496 FAN_CURVE_DEV_GPU, 3);
3497static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_temp, fan_curve,
3498 FAN_CURVE_DEV_GPU, 4);
3499static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_temp, fan_curve,
3500 FAN_CURVE_DEV_GPU, 5);
3501static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_temp, fan_curve,
3502 FAN_CURVE_DEV_GPU, 6);
3503static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_temp, fan_curve,
3504 FAN_CURVE_DEV_GPU, 7);
3505
3506static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_pwm, fan_curve,
3507 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 0);
3508static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_pwm, fan_curve,
3509 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 1);
3510static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_pwm, fan_curve,
3511 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 2);
3512static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_pwm, fan_curve,
3513 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 3);
3514static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_pwm, fan_curve,
3515 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 4);
3516static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_pwm, fan_curve,
3517 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 5);
3518static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_pwm, fan_curve,
3519 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 6);
3520static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_pwm, fan_curve,
3521 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 7);
3522
3523/* MID */
3524static SENSOR_DEVICE_ATTR_RW(pwm3_enable, fan_curve_enable, FAN_CURVE_DEV_MID);
3525static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point1_temp, fan_curve,
3526 FAN_CURVE_DEV_MID, 0);
3527static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point2_temp, fan_curve,
3528 FAN_CURVE_DEV_MID, 1);
3529static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point3_temp, fan_curve,
3530 FAN_CURVE_DEV_MID, 2);
3531static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point4_temp, fan_curve,
3532 FAN_CURVE_DEV_MID, 3);
3533static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point5_temp, fan_curve,
3534 FAN_CURVE_DEV_MID, 4);
3535static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point6_temp, fan_curve,
3536 FAN_CURVE_DEV_MID, 5);
3537static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point7_temp, fan_curve,
3538 FAN_CURVE_DEV_MID, 6);
3539static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point8_temp, fan_curve,
3540 FAN_CURVE_DEV_MID, 7);
3541
3542static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point1_pwm, fan_curve,
3543 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 0);
3544static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point2_pwm, fan_curve,
3545 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 1);
3546static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point3_pwm, fan_curve,
3547 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 2);
3548static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point4_pwm, fan_curve,
3549 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 3);
3550static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point5_pwm, fan_curve,
3551 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 4);
3552static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point6_pwm, fan_curve,
3553 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 5);
3554static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point7_pwm, fan_curve,
3555 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 6);
3556static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point8_pwm, fan_curve,
3557 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 7);
3558
3559static struct attribute *asus_fan_curve_attr[] = {
3560 /* CPU */
3561 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
3562 &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
3563 &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
3564 &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
3565 &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
3566 &sensor_dev_attr_pwm1_auto_point5_temp.dev_attr.attr,
3567 &sensor_dev_attr_pwm1_auto_point6_temp.dev_attr.attr,
3568 &sensor_dev_attr_pwm1_auto_point7_temp.dev_attr.attr,
3569 &sensor_dev_attr_pwm1_auto_point8_temp.dev_attr.attr,
3570 &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
3571 &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
3572 &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
3573 &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
3574 &sensor_dev_attr_pwm1_auto_point5_pwm.dev_attr.attr,
3575 &sensor_dev_attr_pwm1_auto_point6_pwm.dev_attr.attr,
3576 &sensor_dev_attr_pwm1_auto_point7_pwm.dev_attr.attr,
3577 &sensor_dev_attr_pwm1_auto_point8_pwm.dev_attr.attr,
3578 /* GPU */
3579 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
3580 &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
3581 &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
3582 &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
3583 &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
3584 &sensor_dev_attr_pwm2_auto_point5_temp.dev_attr.attr,
3585 &sensor_dev_attr_pwm2_auto_point6_temp.dev_attr.attr,
3586 &sensor_dev_attr_pwm2_auto_point7_temp.dev_attr.attr,
3587 &sensor_dev_attr_pwm2_auto_point8_temp.dev_attr.attr,
3588 &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
3589 &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
3590 &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
3591 &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,
3592 &sensor_dev_attr_pwm2_auto_point5_pwm.dev_attr.attr,
3593 &sensor_dev_attr_pwm2_auto_point6_pwm.dev_attr.attr,
3594 &sensor_dev_attr_pwm2_auto_point7_pwm.dev_attr.attr,
3595 &sensor_dev_attr_pwm2_auto_point8_pwm.dev_attr.attr,
3596 /* MID */
3597 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
3598 &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
3599 &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
3600 &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
3601 &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr,
3602 &sensor_dev_attr_pwm3_auto_point5_temp.dev_attr.attr,
3603 &sensor_dev_attr_pwm3_auto_point6_temp.dev_attr.attr,
3604 &sensor_dev_attr_pwm3_auto_point7_temp.dev_attr.attr,
3605 &sensor_dev_attr_pwm3_auto_point8_temp.dev_attr.attr,
3606 &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
3607 &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
3608 &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr,
3609 &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr,
3610 &sensor_dev_attr_pwm3_auto_point5_pwm.dev_attr.attr,
3611 &sensor_dev_attr_pwm3_auto_point6_pwm.dev_attr.attr,
3612 &sensor_dev_attr_pwm3_auto_point7_pwm.dev_attr.attr,
3613 &sensor_dev_attr_pwm3_auto_point8_pwm.dev_attr.attr,
3614 NULL
3615};
3616
3617static umode_t asus_fan_curve_is_visible(struct kobject *kobj,
3618 struct attribute *attr, int idx)
3619{
3620 struct device *dev = kobj_to_dev(kobj);
3621 struct asus_wmi *asus = dev_get_drvdata(dev->parent);
3622
3623 /*
3624 * Check the char instead of casting attr as there are two attr types
3625 * involved here (attr1 and attr2)
3626 */
3627 if (asus->cpu_fan_curve_available && attr->name[3] == '1')
3628 return 0644;
3629
3630 if (asus->gpu_fan_curve_available && attr->name[3] == '2')
3631 return 0644;
3632
3633 if (asus->mid_fan_curve_available && attr->name[3] == '3')
3634 return 0644;
3635
3636 return 0;
3637}
3638
3639static const struct attribute_group asus_fan_curve_attr_group = {
3640 .is_visible = asus_fan_curve_is_visible,
3641 .attrs = asus_fan_curve_attr,
3642};
3643__ATTRIBUTE_GROUPS(asus_fan_curve_attr);
3644
3645/*
3646 * Must be initialised after throttle_thermal_policy_dev is set as
3647 * we check the status of throttle_thermal_policy_dev during init.
3648 */
3649static int asus_wmi_custom_fan_curve_init(struct asus_wmi *asus)
3650{
3651 struct device *dev = &asus->platform_device->dev;
3652 struct device *hwmon;
3653 int err;
3654
3655 err = fan_curve_check_present(asus, &asus->cpu_fan_curve_available,
3656 ASUS_WMI_DEVID_CPU_FAN_CURVE);
3657 if (err) {
3658 pr_debug("%s, checked 0x%08x, failed: %d\n",
3659 __func__, ASUS_WMI_DEVID_CPU_FAN_CURVE, err);
3660 return err;
3661 }
3662
3663 err = fan_curve_check_present(asus, &asus->gpu_fan_curve_available,
3664 ASUS_WMI_DEVID_GPU_FAN_CURVE);
3665 if (err) {
3666 pr_debug("%s, checked 0x%08x, failed: %d\n",
3667 __func__, ASUS_WMI_DEVID_GPU_FAN_CURVE, err);
3668 return err;
3669 }
3670
3671 err = fan_curve_check_present(asus, &asus->mid_fan_curve_available,
3672 ASUS_WMI_DEVID_MID_FAN_CURVE);
3673 if (err) {
3674 pr_debug("%s, checked 0x%08x, failed: %d\n",
3675 __func__, ASUS_WMI_DEVID_MID_FAN_CURVE, err);
3676 return err;
3677 }
3678
3679 if (!asus->cpu_fan_curve_available
3680 && !asus->gpu_fan_curve_available
3681 && !asus->mid_fan_curve_available)
3682 return 0;
3683
3684 hwmon = devm_hwmon_device_register_with_groups(
3685 dev, "asus_custom_fan_curve", asus, asus_fan_curve_attr_groups);
3686
3687 if (IS_ERR(hwmon)) {
3688 dev_err(dev,
3689 "Could not register asus_custom_fan_curve device\n");
3690 return PTR_ERR(hwmon);
3691 }
3692
3693 return 0;
3694}
3695
3696/* Throttle thermal policy ****************************************************/
3697static int throttle_thermal_policy_write(struct asus_wmi *asus)
3698{
3699 u8 value;
3700 int err;
3701
3702 if (asus->throttle_thermal_policy_dev == ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY_VIVO) {
3703 switch (asus->throttle_thermal_policy_mode) {
3704 case ASUS_THROTTLE_THERMAL_POLICY_DEFAULT:
3705 value = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT_VIVO;
3706 break;
3707 case ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST:
3708 value = ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST_VIVO;
3709 break;
3710 case ASUS_THROTTLE_THERMAL_POLICY_SILENT:
3711 value = ASUS_THROTTLE_THERMAL_POLICY_SILENT_VIVO;
3712 break;
3713 default:
3714 return -EINVAL;
3715 }
3716 } else {
3717 value = asus->throttle_thermal_policy_mode;
3718 }
3719
3720 /* Some machines do not return an error code as a result, so we ignore it */
3721 err = asus_wmi_set_devstate(asus->throttle_thermal_policy_dev, value, NULL);
3722
3723 sysfs_notify(&asus->platform_device->dev.kobj, NULL,
3724 "throttle_thermal_policy");
3725
3726 if (err) {
3727 pr_warn("Failed to set throttle thermal policy: %d\n", err);
3728 return err;
3729 }
3730
3731 /* Must set to disabled if mode is toggled */
3732 if (asus->cpu_fan_curve_available)
3733 asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false;
3734 if (asus->gpu_fan_curve_available)
3735 asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false;
3736 if (asus->mid_fan_curve_available)
3737 asus->custom_fan_curves[FAN_CURVE_DEV_MID].enabled = false;
3738
3739 return 0;
3740}
3741
3742static int throttle_thermal_policy_set_default(struct asus_wmi *asus)
3743{
3744 if (!asus->throttle_thermal_policy_dev)
3745 return 0;
3746
3747 asus->throttle_thermal_policy_mode = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
3748 return throttle_thermal_policy_write(asus);
3749}
3750
3751static ssize_t throttle_thermal_policy_show(struct device *dev,
3752 struct device_attribute *attr, char *buf)
3753{
3754 struct asus_wmi *asus = dev_get_drvdata(dev);
3755 u8 mode = asus->throttle_thermal_policy_mode;
3756
3757 return sysfs_emit(buf, "%d\n", mode);
3758}
3759
3760static ssize_t throttle_thermal_policy_store(struct device *dev,
3761 struct device_attribute *attr,
3762 const char *buf, size_t count)
3763{
3764 struct asus_wmi *asus = dev_get_drvdata(dev);
3765 u8 new_mode;
3766 int result;
3767 int err;
3768
3769 result = kstrtou8(buf, 10, &new_mode);
3770 if (result < 0)
3771 return result;
3772
3773 if (new_mode > PLATFORM_PROFILE_MAX)
3774 return -EINVAL;
3775
3776 asus->throttle_thermal_policy_mode = new_mode;
3777 err = throttle_thermal_policy_write(asus);
3778 if (err)
3779 return err;
3780
3781 /*
3782 * Ensure that platform_profile updates userspace with the change to ensure
3783 * that platform_profile and throttle_thermal_policy_mode are in sync.
3784 */
3785 platform_profile_notify();
3786
3787 return count;
3788}
3789
3790/*
3791 * Throttle thermal policy: 0 - default, 1 - overboost, 2 - silent
3792 */
3793static DEVICE_ATTR_RW(throttle_thermal_policy);
3794
3795/* Platform profile ***********************************************************/
3796static int asus_wmi_platform_profile_get(struct platform_profile_handler *pprof,
3797 enum platform_profile_option *profile)
3798{
3799 struct asus_wmi *asus;
3800 int tp;
3801
3802 asus = container_of(pprof, struct asus_wmi, platform_profile_handler);
3803 tp = asus->throttle_thermal_policy_mode;
3804
3805 switch (tp) {
3806 case ASUS_THROTTLE_THERMAL_POLICY_DEFAULT:
3807 *profile = PLATFORM_PROFILE_BALANCED;
3808 break;
3809 case ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST:
3810 *profile = PLATFORM_PROFILE_PERFORMANCE;
3811 break;
3812 case ASUS_THROTTLE_THERMAL_POLICY_SILENT:
3813 *profile = PLATFORM_PROFILE_QUIET;
3814 break;
3815 default:
3816 return -EINVAL;
3817 }
3818
3819 return 0;
3820}
3821
3822static int asus_wmi_platform_profile_set(struct platform_profile_handler *pprof,
3823 enum platform_profile_option profile)
3824{
3825 struct asus_wmi *asus;
3826 int tp;
3827
3828 asus = container_of(pprof, struct asus_wmi, platform_profile_handler);
3829
3830 switch (profile) {
3831 case PLATFORM_PROFILE_PERFORMANCE:
3832 tp = ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST;
3833 break;
3834 case PLATFORM_PROFILE_BALANCED:
3835 tp = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
3836 break;
3837 case PLATFORM_PROFILE_QUIET:
3838 tp = ASUS_THROTTLE_THERMAL_POLICY_SILENT;
3839 break;
3840 default:
3841 return -EOPNOTSUPP;
3842 }
3843
3844 asus->throttle_thermal_policy_mode = tp;
3845 return throttle_thermal_policy_write(asus);
3846}
3847
3848static int platform_profile_setup(struct asus_wmi *asus)
3849{
3850 struct device *dev = &asus->platform_device->dev;
3851 int err;
3852
3853 /*
3854 * Not an error if a component platform_profile relies on is unavailable
3855 * so early return, skipping the setup of platform_profile.
3856 */
3857 if (!asus->throttle_thermal_policy_dev)
3858 return 0;
3859
3860 /*
3861 * We need to set the default thermal profile during probe or otherwise
3862 * the system will often remain in silent mode, causing low performance.
3863 */
3864 err = throttle_thermal_policy_set_default(asus);
3865 if (err < 0) {
3866 pr_warn("Failed to set default thermal profile\n");
3867 return err;
3868 }
3869
3870 dev_info(dev, "Using throttle_thermal_policy for platform_profile support\n");
3871
3872 asus->platform_profile_handler.profile_get = asus_wmi_platform_profile_get;
3873 asus->platform_profile_handler.profile_set = asus_wmi_platform_profile_set;
3874
3875 set_bit(PLATFORM_PROFILE_QUIET, asus->platform_profile_handler.choices);
3876 set_bit(PLATFORM_PROFILE_BALANCED,
3877 asus->platform_profile_handler.choices);
3878 set_bit(PLATFORM_PROFILE_PERFORMANCE,
3879 asus->platform_profile_handler.choices);
3880
3881 err = platform_profile_register(&asus->platform_profile_handler);
3882 if (err == -EEXIST) {
3883 pr_warn("%s, a platform_profile handler is already registered\n", __func__);
3884 return 0;
3885 } else if (err) {
3886 pr_err("%s, failed at platform_profile_register: %d\n", __func__, err);
3887 return err;
3888 }
3889
3890 asus->platform_profile_support = true;
3891 return 0;
3892}
3893
3894/* Backlight ******************************************************************/
3895
3896static int read_backlight_power(struct asus_wmi *asus)
3897{
3898 int ret;
3899
3900 if (asus->driver->quirks->store_backlight_power)
3901 ret = !asus->driver->panel_power;
3902 else
3903 ret = asus_wmi_get_devstate_simple(asus,
3904 ASUS_WMI_DEVID_BACKLIGHT);
3905
3906 if (ret < 0)
3907 return ret;
3908
3909 return ret ? BACKLIGHT_POWER_ON : BACKLIGHT_POWER_OFF;
3910}
3911
3912static int read_brightness_max(struct asus_wmi *asus)
3913{
3914 u32 retval;
3915 int err;
3916
3917 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
3918 if (err < 0)
3919 return err;
3920
3921 retval = retval & ASUS_WMI_DSTS_MAX_BRIGTH_MASK;
3922 retval >>= 8;
3923
3924 if (!retval)
3925 return -ENODEV;
3926
3927 return retval;
3928}
3929
3930static int read_brightness(struct backlight_device *bd)
3931{
3932 struct asus_wmi *asus = bl_get_data(bd);
3933 u32 retval;
3934 int err;
3935
3936 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
3937 if (err < 0)
3938 return err;
3939
3940 return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
3941}
3942
3943static u32 get_scalar_command(struct backlight_device *bd)
3944{
3945 struct asus_wmi *asus = bl_get_data(bd);
3946 u32 ctrl_param = 0;
3947
3948 if ((asus->driver->brightness < bd->props.brightness) ||
3949 bd->props.brightness == bd->props.max_brightness)
3950 ctrl_param = 0x00008001;
3951 else if ((asus->driver->brightness > bd->props.brightness) ||
3952 bd->props.brightness == 0)
3953 ctrl_param = 0x00008000;
3954
3955 asus->driver->brightness = bd->props.brightness;
3956
3957 return ctrl_param;
3958}
3959
3960static int update_bl_status(struct backlight_device *bd)
3961{
3962 struct asus_wmi *asus = bl_get_data(bd);
3963 u32 ctrl_param;
3964 int power, err = 0;
3965
3966 power = read_backlight_power(asus);
3967 if (power != -ENODEV && bd->props.power != power) {
3968 ctrl_param = !!(bd->props.power == BACKLIGHT_POWER_ON);
3969 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT,
3970 ctrl_param, NULL);
3971 if (asus->driver->quirks->store_backlight_power)
3972 asus->driver->panel_power = bd->props.power;
3973
3974 /* When using scalar brightness, updating the brightness
3975 * will mess with the backlight power */
3976 if (asus->driver->quirks->scalar_panel_brightness)
3977 return err;
3978 }
3979
3980 if (asus->driver->quirks->scalar_panel_brightness)
3981 ctrl_param = get_scalar_command(bd);
3982 else
3983 ctrl_param = bd->props.brightness;
3984
3985 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS,
3986 ctrl_param, NULL);
3987
3988 return err;
3989}
3990
3991static const struct backlight_ops asus_wmi_bl_ops = {
3992 .get_brightness = read_brightness,
3993 .update_status = update_bl_status,
3994};
3995
3996static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code)
3997{
3998 struct backlight_device *bd = asus->backlight_device;
3999 int old = bd->props.brightness;
4000 int new = old;
4001
4002 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
4003 new = code - NOTIFY_BRNUP_MIN + 1;
4004 else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
4005 new = code - NOTIFY_BRNDOWN_MIN;
4006
4007 bd->props.brightness = new;
4008 backlight_update_status(bd);
4009 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
4010
4011 return old;
4012}
4013
4014static int asus_wmi_backlight_init(struct asus_wmi *asus)
4015{
4016 struct backlight_device *bd;
4017 struct backlight_properties props;
4018 int max;
4019 int power;
4020
4021 max = read_brightness_max(asus);
4022 if (max < 0)
4023 return max;
4024
4025 power = read_backlight_power(asus);
4026 if (power == -ENODEV)
4027 power = BACKLIGHT_POWER_ON;
4028 else if (power < 0)
4029 return power;
4030
4031 memset(&props, 0, sizeof(struct backlight_properties));
4032 props.type = BACKLIGHT_PLATFORM;
4033 props.max_brightness = max;
4034 bd = backlight_device_register(asus->driver->name,
4035 &asus->platform_device->dev, asus,
4036 &asus_wmi_bl_ops, &props);
4037 if (IS_ERR(bd)) {
4038 pr_err("Could not register backlight device\n");
4039 return PTR_ERR(bd);
4040 }
4041
4042 asus->backlight_device = bd;
4043
4044 if (asus->driver->quirks->store_backlight_power)
4045 asus->driver->panel_power = power;
4046
4047 bd->props.brightness = read_brightness(bd);
4048 bd->props.power = power;
4049 backlight_update_status(bd);
4050
4051 asus->driver->brightness = bd->props.brightness;
4052
4053 return 0;
4054}
4055
4056static void asus_wmi_backlight_exit(struct asus_wmi *asus)
4057{
4058 backlight_device_unregister(asus->backlight_device);
4059
4060 asus->backlight_device = NULL;
4061}
4062
4063static int is_display_toggle(int code)
4064{
4065 /* display toggle keys */
4066 if ((code >= 0x61 && code <= 0x67) ||
4067 (code >= 0x8c && code <= 0x93) ||
4068 (code >= 0xa0 && code <= 0xa7) ||
4069 (code >= 0xd0 && code <= 0xd5))
4070 return 1;
4071
4072 return 0;
4073}
4074
4075/* Screenpad backlight *******************************************************/
4076
4077static int read_screenpad_backlight_power(struct asus_wmi *asus)
4078{
4079 int ret;
4080
4081 ret = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_SCREENPAD_POWER);
4082 if (ret < 0)
4083 return ret;
4084 /* 1 == powered */
4085 return ret ? BACKLIGHT_POWER_ON : BACKLIGHT_POWER_OFF;
4086}
4087
4088static int read_screenpad_brightness(struct backlight_device *bd)
4089{
4090 struct asus_wmi *asus = bl_get_data(bd);
4091 u32 retval;
4092 int err;
4093
4094 err = read_screenpad_backlight_power(asus);
4095 if (err < 0)
4096 return err;
4097 /* The device brightness can only be read if powered, so return stored */
4098 if (err == BACKLIGHT_POWER_OFF)
4099 return asus->driver->screenpad_brightness - ASUS_SCREENPAD_BRIGHT_MIN;
4100
4101 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_SCREENPAD_LIGHT, &retval);
4102 if (err < 0)
4103 return err;
4104
4105 return (retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK) - ASUS_SCREENPAD_BRIGHT_MIN;
4106}
4107
4108static int update_screenpad_bl_status(struct backlight_device *bd)
4109{
4110 struct asus_wmi *asus = bl_get_data(bd);
4111 int power, err = 0;
4112 u32 ctrl_param;
4113
4114 power = read_screenpad_backlight_power(asus);
4115 if (power < 0)
4116 return power;
4117
4118 if (bd->props.power != power) {
4119 if (power != BACKLIGHT_POWER_ON) {
4120 /* Only brightness > 0 can power it back on */
4121 ctrl_param = asus->driver->screenpad_brightness - ASUS_SCREENPAD_BRIGHT_MIN;
4122 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_SCREENPAD_LIGHT,
4123 ctrl_param, NULL);
4124 } else {
4125 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_SCREENPAD_POWER, 0, NULL);
4126 }
4127 } else if (power == BACKLIGHT_POWER_ON) {
4128 /* Only set brightness if powered on or we get invalid/unsync state */
4129 ctrl_param = bd->props.brightness + ASUS_SCREENPAD_BRIGHT_MIN;
4130 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_SCREENPAD_LIGHT, ctrl_param, NULL);
4131 }
4132
4133 /* Ensure brightness is stored to turn back on with */
4134 if (err == 0)
4135 asus->driver->screenpad_brightness = bd->props.brightness + ASUS_SCREENPAD_BRIGHT_MIN;
4136
4137 return err;
4138}
4139
4140static const struct backlight_ops asus_screenpad_bl_ops = {
4141 .get_brightness = read_screenpad_brightness,
4142 .update_status = update_screenpad_bl_status,
4143 .options = BL_CORE_SUSPENDRESUME,
4144};
4145
4146static int asus_screenpad_init(struct asus_wmi *asus)
4147{
4148 struct backlight_device *bd;
4149 struct backlight_properties props;
4150 int err, power;
4151 int brightness = 0;
4152
4153 power = read_screenpad_backlight_power(asus);
4154 if (power < 0)
4155 return power;
4156
4157 if (power != BACKLIGHT_POWER_OFF) {
4158 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_SCREENPAD_LIGHT, &brightness);
4159 if (err < 0)
4160 return err;
4161 }
4162 /* default to an acceptable min brightness on boot if too low */
4163 if (brightness < ASUS_SCREENPAD_BRIGHT_MIN)
4164 brightness = ASUS_SCREENPAD_BRIGHT_DEFAULT;
4165
4166 memset(&props, 0, sizeof(struct backlight_properties));
4167 props.type = BACKLIGHT_RAW; /* ensure this bd is last to be picked */
4168 props.max_brightness = ASUS_SCREENPAD_BRIGHT_MAX - ASUS_SCREENPAD_BRIGHT_MIN;
4169 bd = backlight_device_register("asus_screenpad",
4170 &asus->platform_device->dev, asus,
4171 &asus_screenpad_bl_ops, &props);
4172 if (IS_ERR(bd)) {
4173 pr_err("Could not register backlight device\n");
4174 return PTR_ERR(bd);
4175 }
4176
4177 asus->screenpad_backlight_device = bd;
4178 asus->driver->screenpad_brightness = brightness;
4179 bd->props.brightness = brightness - ASUS_SCREENPAD_BRIGHT_MIN;
4180 bd->props.power = power;
4181 backlight_update_status(bd);
4182
4183 return 0;
4184}
4185
4186static void asus_screenpad_exit(struct asus_wmi *asus)
4187{
4188 backlight_device_unregister(asus->screenpad_backlight_device);
4189
4190 asus->screenpad_backlight_device = NULL;
4191}
4192
4193/* Fn-lock ********************************************************************/
4194
4195static bool asus_wmi_has_fnlock_key(struct asus_wmi *asus)
4196{
4197 u32 result;
4198
4199 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FNLOCK, &result);
4200
4201 return (result & ASUS_WMI_DSTS_PRESENCE_BIT) &&
4202 !(result & ASUS_WMI_FNLOCK_BIOS_DISABLED);
4203}
4204
4205static void asus_wmi_fnlock_update(struct asus_wmi *asus)
4206{
4207 int mode = asus->fnlock_locked;
4208
4209 asus_wmi_set_devstate(ASUS_WMI_DEVID_FNLOCK, mode, NULL);
4210}
4211
4212/* WMI events *****************************************************************/
4213
4214static int asus_wmi_get_event_code(union acpi_object *obj)
4215{
4216 int code;
4217
4218 if (obj && obj->type == ACPI_TYPE_INTEGER)
4219 code = (int)(obj->integer.value & WMI_EVENT_MASK);
4220 else
4221 code = -EIO;
4222
4223 return code;
4224}
4225
4226static void asus_wmi_handle_event_code(int code, struct asus_wmi *asus)
4227{
4228 unsigned int key_value = 1;
4229 bool autorelease = 1;
4230
4231 if (asus->driver->key_filter) {
4232 asus->driver->key_filter(asus->driver, &code, &key_value,
4233 &autorelease);
4234 if (code == ASUS_WMI_KEY_IGNORE)
4235 return;
4236 }
4237
4238 if (acpi_video_get_backlight_type() == acpi_backlight_vendor &&
4239 code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNDOWN_MAX) {
4240 asus_wmi_backlight_notify(asus, code);
4241 return;
4242 }
4243
4244 if (code == NOTIFY_KBD_BRTUP) {
4245 kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1);
4246 return;
4247 }
4248 if (code == NOTIFY_KBD_BRTDWN) {
4249 kbd_led_set_by_kbd(asus, asus->kbd_led_wk - 1);
4250 return;
4251 }
4252 if (code == NOTIFY_KBD_BRTTOGGLE) {
4253 if (asus->kbd_led_wk == asus->kbd_led.max_brightness)
4254 kbd_led_set_by_kbd(asus, 0);
4255 else
4256 kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1);
4257 return;
4258 }
4259
4260 if (code == NOTIFY_FNLOCK_TOGGLE) {
4261 asus->fnlock_locked = !asus->fnlock_locked;
4262 asus_wmi_fnlock_update(asus);
4263 return;
4264 }
4265
4266 if (code == asus->tablet_switch_event_code) {
4267 asus_wmi_tablet_mode_get_state(asus);
4268 return;
4269 }
4270
4271 if (code == NOTIFY_KBD_FBM || code == NOTIFY_KBD_TTP) {
4272 if (asus->fan_boost_mode_available)
4273 fan_boost_mode_switch_next(asus);
4274 if (asus->throttle_thermal_policy_dev)
4275 platform_profile_cycle();
4276 return;
4277
4278 }
4279
4280 if (is_display_toggle(code) && asus->driver->quirks->no_display_toggle)
4281 return;
4282
4283 if (!sparse_keymap_report_event(asus->inputdev, code,
4284 key_value, autorelease))
4285 pr_info("Unknown key code 0x%x\n", code);
4286}
4287
4288static void asus_wmi_notify(union acpi_object *obj, void *context)
4289{
4290 struct asus_wmi *asus = context;
4291 int code = asus_wmi_get_event_code(obj);
4292
4293 if (code < 0) {
4294 pr_warn("Failed to get notify code: %d\n", code);
4295 return;
4296 }
4297
4298 asus_wmi_handle_event_code(code, asus);
4299}
4300
4301/* Sysfs **********************************************************************/
4302
4303static ssize_t store_sys_wmi(struct asus_wmi *asus, int devid,
4304 const char *buf, size_t count)
4305{
4306 u32 retval;
4307 int err, value;
4308
4309 value = asus_wmi_get_devstate_simple(asus, devid);
4310 if (value < 0)
4311 return value;
4312
4313 err = kstrtoint(buf, 0, &value);
4314 if (err)
4315 return err;
4316
4317 err = asus_wmi_set_devstate(devid, value, &retval);
4318 if (err < 0)
4319 return err;
4320
4321 return count;
4322}
4323
4324static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
4325{
4326 int value = asus_wmi_get_devstate_simple(asus, devid);
4327
4328 if (value < 0)
4329 return value;
4330
4331 return sysfs_emit(buf, "%d\n", value);
4332}
4333
4334#define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \
4335 static ssize_t show_##_name(struct device *dev, \
4336 struct device_attribute *attr, \
4337 char *buf) \
4338 { \
4339 struct asus_wmi *asus = dev_get_drvdata(dev); \
4340 \
4341 return show_sys_wmi(asus, _cm, buf); \
4342 } \
4343 static ssize_t store_##_name(struct device *dev, \
4344 struct device_attribute *attr, \
4345 const char *buf, size_t count) \
4346 { \
4347 struct asus_wmi *asus = dev_get_drvdata(dev); \
4348 \
4349 return store_sys_wmi(asus, _cm, buf, count); \
4350 } \
4351 static struct device_attribute dev_attr_##_name = { \
4352 .attr = { \
4353 .name = __stringify(_name), \
4354 .mode = _mode }, \
4355 .show = show_##_name, \
4356 .store = store_##_name, \
4357 }
4358
4359ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD);
4360ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA);
4361ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
4362ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume, 0644, ASUS_WMI_DEVID_LID_RESUME);
4363ASUS_WMI_CREATE_DEVICE_ATTR(als_enable, 0644, ASUS_WMI_DEVID_ALS_ENABLE);
4364
4365static ssize_t cpufv_store(struct device *dev, struct device_attribute *attr,
4366 const char *buf, size_t count)
4367{
4368 int value, rv;
4369
4370 rv = kstrtoint(buf, 0, &value);
4371 if (rv)
4372 return rv;
4373
4374 if (value < 0 || value > 2)
4375 return -EINVAL;
4376
4377 rv = asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL);
4378 if (rv < 0)
4379 return rv;
4380
4381 return count;
4382}
4383
4384static DEVICE_ATTR_WO(cpufv);
4385
4386static struct attribute *platform_attributes[] = {
4387 &dev_attr_cpufv.attr,
4388 &dev_attr_camera.attr,
4389 &dev_attr_cardr.attr,
4390 &dev_attr_touchpad.attr,
4391 &dev_attr_charge_mode.attr,
4392 &dev_attr_egpu_enable.attr,
4393 &dev_attr_egpu_connected.attr,
4394 &dev_attr_dgpu_disable.attr,
4395 &dev_attr_gpu_mux_mode.attr,
4396 &dev_attr_lid_resume.attr,
4397 &dev_attr_als_enable.attr,
4398 &dev_attr_fan_boost_mode.attr,
4399 &dev_attr_throttle_thermal_policy.attr,
4400 &dev_attr_ppt_pl2_sppt.attr,
4401 &dev_attr_ppt_pl1_spl.attr,
4402 &dev_attr_ppt_fppt.attr,
4403 &dev_attr_ppt_apu_sppt.attr,
4404 &dev_attr_ppt_platform_sppt.attr,
4405 &dev_attr_nv_dynamic_boost.attr,
4406 &dev_attr_nv_temp_target.attr,
4407 &dev_attr_mcu_powersave.attr,
4408 &dev_attr_boot_sound.attr,
4409 &dev_attr_panel_od.attr,
4410 &dev_attr_mini_led_mode.attr,
4411 &dev_attr_available_mini_led_mode.attr,
4412 NULL
4413};
4414
4415static umode_t asus_sysfs_is_visible(struct kobject *kobj,
4416 struct attribute *attr, int idx)
4417{
4418 struct device *dev = kobj_to_dev(kobj);
4419 struct asus_wmi *asus = dev_get_drvdata(dev);
4420 bool ok = true;
4421 int devid = -1;
4422
4423 if (attr == &dev_attr_camera.attr)
4424 devid = ASUS_WMI_DEVID_CAMERA;
4425 else if (attr == &dev_attr_cardr.attr)
4426 devid = ASUS_WMI_DEVID_CARDREADER;
4427 else if (attr == &dev_attr_touchpad.attr)
4428 devid = ASUS_WMI_DEVID_TOUCHPAD;
4429 else if (attr == &dev_attr_lid_resume.attr)
4430 devid = ASUS_WMI_DEVID_LID_RESUME;
4431 else if (attr == &dev_attr_als_enable.attr)
4432 devid = ASUS_WMI_DEVID_ALS_ENABLE;
4433 else if (attr == &dev_attr_charge_mode.attr)
4434 devid = ASUS_WMI_DEVID_CHARGE_MODE;
4435 else if (attr == &dev_attr_egpu_enable.attr)
4436 ok = asus->egpu_enable_available;
4437 else if (attr == &dev_attr_egpu_connected.attr)
4438 devid = ASUS_WMI_DEVID_EGPU_CONNECTED;
4439 else if (attr == &dev_attr_dgpu_disable.attr)
4440 ok = asus->dgpu_disable_available;
4441 else if (attr == &dev_attr_gpu_mux_mode.attr)
4442 ok = asus->gpu_mux_dev != 0;
4443 else if (attr == &dev_attr_fan_boost_mode.attr)
4444 ok = asus->fan_boost_mode_available;
4445 else if (attr == &dev_attr_throttle_thermal_policy.attr)
4446 ok = asus->throttle_thermal_policy_dev != 0;
4447 else if (attr == &dev_attr_ppt_pl2_sppt.attr)
4448 devid = ASUS_WMI_DEVID_PPT_PL2_SPPT;
4449 else if (attr == &dev_attr_ppt_pl1_spl.attr)
4450 devid = ASUS_WMI_DEVID_PPT_PL1_SPL;
4451 else if (attr == &dev_attr_ppt_fppt.attr)
4452 devid = ASUS_WMI_DEVID_PPT_FPPT;
4453 else if (attr == &dev_attr_ppt_apu_sppt.attr)
4454 devid = ASUS_WMI_DEVID_PPT_APU_SPPT;
4455 else if (attr == &dev_attr_ppt_platform_sppt.attr)
4456 devid = ASUS_WMI_DEVID_PPT_PLAT_SPPT;
4457 else if (attr == &dev_attr_nv_dynamic_boost.attr)
4458 devid = ASUS_WMI_DEVID_NV_DYN_BOOST;
4459 else if (attr == &dev_attr_nv_temp_target.attr)
4460 devid = ASUS_WMI_DEVID_NV_THERM_TARGET;
4461 else if (attr == &dev_attr_mcu_powersave.attr)
4462 devid = ASUS_WMI_DEVID_MCU_POWERSAVE;
4463 else if (attr == &dev_attr_boot_sound.attr)
4464 devid = ASUS_WMI_DEVID_BOOT_SOUND;
4465 else if (attr == &dev_attr_panel_od.attr)
4466 devid = ASUS_WMI_DEVID_PANEL_OD;
4467 else if (attr == &dev_attr_mini_led_mode.attr)
4468 ok = asus->mini_led_dev_id != 0;
4469 else if (attr == &dev_attr_available_mini_led_mode.attr)
4470 ok = asus->mini_led_dev_id != 0;
4471
4472 if (devid != -1) {
4473 ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
4474 pr_debug("%s called 0x%08x, ok: %x\n", __func__, devid, ok);
4475 }
4476
4477 return ok ? attr->mode : 0;
4478}
4479
4480static const struct attribute_group platform_attribute_group = {
4481 .is_visible = asus_sysfs_is_visible,
4482 .attrs = platform_attributes
4483};
4484
4485static void asus_wmi_sysfs_exit(struct platform_device *device)
4486{
4487 sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
4488}
4489
4490static int asus_wmi_sysfs_init(struct platform_device *device)
4491{
4492 return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
4493}
4494
4495/* Platform device ************************************************************/
4496
4497static int asus_wmi_platform_init(struct asus_wmi *asus)
4498{
4499 struct device *dev = &asus->platform_device->dev;
4500 char *wmi_uid;
4501 int rv;
4502
4503 /* INIT enable hotkeys on some models */
4504 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv))
4505 pr_info("Initialization: %#x\n", rv);
4506
4507 /* We don't know yet what to do with this version... */
4508 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) {
4509 pr_info("BIOS WMI version: %d.%d\n", rv >> 16, rv & 0xFF);
4510 asus->spec = rv;
4511 }
4512
4513 /*
4514 * The SFUN method probably allows the original driver to get the list
4515 * of features supported by a given model. For now, 0x0100 or 0x0800
4516 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
4517 * The significance of others is yet to be found.
4518 */
4519 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) {
4520 pr_info("SFUN value: %#x\n", rv);
4521 asus->sfun = rv;
4522 }
4523
4524 /*
4525 * Eee PC and Notebooks seems to have different method_id for DSTS,
4526 * but it may also be related to the BIOS's SPEC.
4527 * Note, on most Eeepc, there is no way to check if a method exist
4528 * or note, while on notebooks, they returns 0xFFFFFFFE on failure,
4529 * but once again, SPEC may probably be used for that kind of things.
4530 *
4531 * Additionally at least TUF Gaming series laptops return nothing for
4532 * unknown methods, so the detection in this way is not possible.
4533 *
4534 * There is strong indication that only ACPI WMI devices that have _UID
4535 * equal to "ASUSWMI" use DCTS whereas those with "ATK" use DSTS.
4536 */
4537 wmi_uid = wmi_get_acpi_device_uid(ASUS_WMI_MGMT_GUID);
4538 if (!wmi_uid)
4539 return -ENODEV;
4540
4541 if (!strcmp(wmi_uid, ASUS_ACPI_UID_ASUSWMI)) {
4542 dev_info(dev, "Detected ASUSWMI, use DCTS\n");
4543 asus->dsts_id = ASUS_WMI_METHODID_DCTS;
4544 } else {
4545 dev_info(dev, "Detected %s, not ASUSWMI, use DSTS\n", wmi_uid);
4546 asus->dsts_id = ASUS_WMI_METHODID_DSTS;
4547 }
4548
4549 /* CWAP allow to define the behavior of the Fn+F2 key,
4550 * this method doesn't seems to be present on Eee PCs */
4551 if (asus->driver->quirks->wapf >= 0)
4552 asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP,
4553 asus->driver->quirks->wapf, NULL);
4554
4555 return 0;
4556}
4557
4558/* debugfs ********************************************************************/
4559
4560struct asus_wmi_debugfs_node {
4561 struct asus_wmi *asus;
4562 char *name;
4563 int (*show) (struct seq_file *m, void *data);
4564};
4565
4566static int show_dsts(struct seq_file *m, void *data)
4567{
4568 struct asus_wmi *asus = m->private;
4569 int err;
4570 u32 retval = -1;
4571
4572 err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
4573 if (err < 0)
4574 return err;
4575
4576 seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval);
4577
4578 return 0;
4579}
4580
4581static int show_devs(struct seq_file *m, void *data)
4582{
4583 struct asus_wmi *asus = m->private;
4584 int err;
4585 u32 retval = -1;
4586
4587 err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
4588 &retval);
4589 if (err < 0)
4590 return err;
4591
4592 seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id,
4593 asus->debug.ctrl_param, retval);
4594
4595 return 0;
4596}
4597
4598static int show_call(struct seq_file *m, void *data)
4599{
4600 struct asus_wmi *asus = m->private;
4601 struct bios_args args = {
4602 .arg0 = asus->debug.dev_id,
4603 .arg1 = asus->debug.ctrl_param,
4604 };
4605 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
4606 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
4607 union acpi_object *obj;
4608 acpi_status status;
4609
4610 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
4611 0, asus->debug.method_id,
4612 &input, &output);
4613
4614 if (ACPI_FAILURE(status))
4615 return -EIO;
4616
4617 obj = (union acpi_object *)output.pointer;
4618 if (obj && obj->type == ACPI_TYPE_INTEGER)
4619 seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id,
4620 asus->debug.dev_id, asus->debug.ctrl_param,
4621 (u32) obj->integer.value);
4622 else
4623 seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id,
4624 asus->debug.dev_id, asus->debug.ctrl_param,
4625 obj ? obj->type : -1);
4626
4627 kfree(obj);
4628
4629 return 0;
4630}
4631
4632static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = {
4633 {NULL, "devs", show_devs},
4634 {NULL, "dsts", show_dsts},
4635 {NULL, "call", show_call},
4636};
4637
4638static int asus_wmi_debugfs_open(struct inode *inode, struct file *file)
4639{
4640 struct asus_wmi_debugfs_node *node = inode->i_private;
4641
4642 return single_open(file, node->show, node->asus);
4643}
4644
4645static const struct file_operations asus_wmi_debugfs_io_ops = {
4646 .owner = THIS_MODULE,
4647 .open = asus_wmi_debugfs_open,
4648 .read = seq_read,
4649 .llseek = seq_lseek,
4650 .release = single_release,
4651};
4652
4653static void asus_wmi_debugfs_exit(struct asus_wmi *asus)
4654{
4655 debugfs_remove_recursive(asus->debug.root);
4656}
4657
4658static void asus_wmi_debugfs_init(struct asus_wmi *asus)
4659{
4660 int i;
4661
4662 asus->debug.root = debugfs_create_dir(asus->driver->name, NULL);
4663
4664 debugfs_create_x32("method_id", S_IRUGO | S_IWUSR, asus->debug.root,
4665 &asus->debug.method_id);
4666
4667 debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR, asus->debug.root,
4668 &asus->debug.dev_id);
4669
4670 debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR, asus->debug.root,
4671 &asus->debug.ctrl_param);
4672
4673 for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) {
4674 struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i];
4675
4676 node->asus = asus;
4677 debugfs_create_file(node->name, S_IFREG | S_IRUGO,
4678 asus->debug.root, node,
4679 &asus_wmi_debugfs_io_ops);
4680 }
4681}
4682
4683/* Init / exit ****************************************************************/
4684
4685static int asus_wmi_add(struct platform_device *pdev)
4686{
4687 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
4688 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
4689 struct asus_wmi *asus;
4690 acpi_status status;
4691 int err;
4692 u32 result;
4693
4694 asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL);
4695 if (!asus)
4696 return -ENOMEM;
4697
4698 asus->driver = wdrv;
4699 asus->platform_device = pdev;
4700 wdrv->platform_device = pdev;
4701 platform_set_drvdata(asus->platform_device, asus);
4702
4703 if (wdrv->detect_quirks)
4704 wdrv->detect_quirks(asus->driver);
4705
4706 err = asus_wmi_platform_init(asus);
4707 if (err)
4708 goto fail_platform;
4709
4710 /* ensure defaults for tunables */
4711 asus->ppt_pl2_sppt = 5;
4712 asus->ppt_pl1_spl = 5;
4713 asus->ppt_apu_sppt = 5;
4714 asus->ppt_platform_sppt = 5;
4715 asus->ppt_fppt = 5;
4716 asus->nv_dynamic_boost = 5;
4717 asus->nv_temp_target = 75;
4718
4719 asus->egpu_enable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU);
4720 asus->dgpu_disable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_DGPU);
4721 asus->kbd_rgb_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_STATE);
4722 asus->ally_mcu_usb_switch = acpi_has_method(NULL, ASUS_USB0_PWR_EC0_CSEE)
4723 && dmi_check_system(asus_ally_mcu_quirk);
4724
4725 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE))
4726 asus->mini_led_dev_id = ASUS_WMI_DEVID_MINI_LED_MODE;
4727 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE2))
4728 asus->mini_led_dev_id = ASUS_WMI_DEVID_MINI_LED_MODE2;
4729
4730 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX))
4731 asus->gpu_mux_dev = ASUS_WMI_DEVID_GPU_MUX;
4732 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX_VIVO))
4733 asus->gpu_mux_dev = ASUS_WMI_DEVID_GPU_MUX_VIVO;
4734
4735 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE))
4736 asus->kbd_rgb_dev = ASUS_WMI_DEVID_TUF_RGB_MODE;
4737 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE2))
4738 asus->kbd_rgb_dev = ASUS_WMI_DEVID_TUF_RGB_MODE2;
4739
4740 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY))
4741 asus->throttle_thermal_policy_dev = ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY;
4742 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY_VIVO))
4743 asus->throttle_thermal_policy_dev = ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY_VIVO;
4744
4745 err = fan_boost_mode_check_present(asus);
4746 if (err)
4747 goto fail_fan_boost_mode;
4748
4749 err = platform_profile_setup(asus);
4750 if (err)
4751 goto fail_platform_profile_setup;
4752
4753 err = asus_wmi_sysfs_init(asus->platform_device);
4754 if (err)
4755 goto fail_sysfs;
4756
4757 err = asus_wmi_input_init(asus);
4758 if (err)
4759 goto fail_input;
4760
4761 err = asus_wmi_fan_init(asus); /* probably no problems on error */
4762
4763 err = asus_wmi_hwmon_init(asus);
4764 if (err)
4765 goto fail_hwmon;
4766
4767 err = asus_wmi_custom_fan_curve_init(asus);
4768 if (err)
4769 goto fail_custom_fan_curve;
4770
4771 err = asus_wmi_led_init(asus);
4772 if (err)
4773 goto fail_leds;
4774
4775 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result);
4776 if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT))
4777 asus->driver->wlan_ctrl_by_user = 1;
4778
4779 if (!(asus->driver->wlan_ctrl_by_user && ashs_present())) {
4780 err = asus_wmi_rfkill_init(asus);
4781 if (err)
4782 goto fail_rfkill;
4783 }
4784
4785 if (asus->driver->quirks->wmi_force_als_set)
4786 asus_wmi_set_als();
4787
4788 if (asus->driver->quirks->xusb2pr)
4789 asus_wmi_set_xusb2pr(asus);
4790
4791 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
4792 err = asus_wmi_backlight_init(asus);
4793 if (err && err != -ENODEV)
4794 goto fail_backlight;
4795 } else if (asus->driver->quirks->wmi_backlight_set_devstate)
4796 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL);
4797
4798 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_SCREENPAD_LIGHT)) {
4799 err = asus_screenpad_init(asus);
4800 if (err && err != -ENODEV)
4801 goto fail_screenpad;
4802 }
4803
4804 if (asus_wmi_has_fnlock_key(asus)) {
4805 asus->fnlock_locked = fnlock_default;
4806 asus_wmi_fnlock_update(asus);
4807 }
4808
4809 status = wmi_install_notify_handler(asus->driver->event_guid,
4810 asus_wmi_notify, asus);
4811 if (ACPI_FAILURE(status)) {
4812 pr_err("Unable to register notify handler - %d\n", status);
4813 err = -ENODEV;
4814 goto fail_wmi_handler;
4815 }
4816
4817 if (asus->driver->i8042_filter) {
4818 err = i8042_install_filter(asus->driver->i8042_filter);
4819 if (err)
4820 pr_warn("Unable to install key filter - %d\n", err);
4821 }
4822
4823 asus_wmi_battery_init(asus);
4824
4825 asus_wmi_debugfs_init(asus);
4826
4827 return 0;
4828
4829fail_wmi_handler:
4830 asus_wmi_backlight_exit(asus);
4831fail_backlight:
4832 asus_wmi_rfkill_exit(asus);
4833fail_screenpad:
4834 asus_screenpad_exit(asus);
4835fail_rfkill:
4836 asus_wmi_led_exit(asus);
4837fail_leds:
4838fail_hwmon:
4839 asus_wmi_input_exit(asus);
4840fail_input:
4841 asus_wmi_sysfs_exit(asus->platform_device);
4842fail_sysfs:
4843fail_custom_fan_curve:
4844fail_platform_profile_setup:
4845 if (asus->platform_profile_support)
4846 platform_profile_remove();
4847fail_fan_boost_mode:
4848fail_platform:
4849 kfree(asus);
4850 return err;
4851}
4852
4853static void asus_wmi_remove(struct platform_device *device)
4854{
4855 struct asus_wmi *asus;
4856
4857 asus = platform_get_drvdata(device);
4858 if (asus->driver->i8042_filter)
4859 i8042_remove_filter(asus->driver->i8042_filter);
4860 wmi_remove_notify_handler(asus->driver->event_guid);
4861 asus_wmi_backlight_exit(asus);
4862 asus_screenpad_exit(asus);
4863 asus_wmi_input_exit(asus);
4864 asus_wmi_led_exit(asus);
4865 asus_wmi_rfkill_exit(asus);
4866 asus_wmi_debugfs_exit(asus);
4867 asus_wmi_sysfs_exit(asus->platform_device);
4868 asus_fan_set_auto(asus);
4869 throttle_thermal_policy_set_default(asus);
4870 asus_wmi_battery_exit(asus);
4871
4872 if (asus->platform_profile_support)
4873 platform_profile_remove();
4874
4875 kfree(asus);
4876}
4877
4878/* Platform driver - hibernate/resume callbacks *******************************/
4879
4880static int asus_hotk_thaw(struct device *device)
4881{
4882 struct asus_wmi *asus = dev_get_drvdata(device);
4883
4884 if (asus->wlan.rfkill) {
4885 bool wlan;
4886
4887 /*
4888 * Work around bios bug - acpi _PTS turns off the wireless led
4889 * during suspend. Normally it restores it on resume, but
4890 * we should kick it ourselves in case hibernation is aborted.
4891 */
4892 wlan = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
4893 asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL);
4894 }
4895
4896 return 0;
4897}
4898
4899static int asus_hotk_resume(struct device *device)
4900{
4901 struct asus_wmi *asus = dev_get_drvdata(device);
4902
4903 if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
4904 kbd_led_update(asus);
4905
4906 if (asus_wmi_has_fnlock_key(asus))
4907 asus_wmi_fnlock_update(asus);
4908
4909 asus_wmi_tablet_mode_get_state(asus);
4910
4911 return 0;
4912}
4913
4914static int asus_hotk_resume_early(struct device *device)
4915{
4916 struct asus_wmi *asus = dev_get_drvdata(device);
4917
4918 if (asus->ally_mcu_usb_switch) {
4919 /* sleep required to prevent USB0 being yanked then reappearing rapidly */
4920 if (ACPI_FAILURE(acpi_execute_simple_method(NULL, ASUS_USB0_PWR_EC0_CSEE, 0xB8)))
4921 dev_err(device, "ROG Ally MCU failed to connect USB dev\n");
4922 else
4923 msleep(ASUS_USB0_PWR_EC0_CSEE_WAIT);
4924 }
4925 return 0;
4926}
4927
4928static int asus_hotk_prepare(struct device *device)
4929{
4930 struct asus_wmi *asus = dev_get_drvdata(device);
4931
4932 if (asus->ally_mcu_usb_switch) {
4933 /* sleep required to ensure USB0 is disabled before sleep continues */
4934 if (ACPI_FAILURE(acpi_execute_simple_method(NULL, ASUS_USB0_PWR_EC0_CSEE, 0xB7)))
4935 dev_err(device, "ROG Ally MCU failed to disconnect USB dev\n");
4936 else
4937 msleep(ASUS_USB0_PWR_EC0_CSEE_WAIT);
4938 }
4939 return 0;
4940}
4941
4942static int asus_hotk_restore(struct device *device)
4943{
4944 struct asus_wmi *asus = dev_get_drvdata(device);
4945 int bl;
4946
4947 /* Refresh both wlan rfkill state and pci hotplug */
4948 if (asus->wlan.rfkill)
4949 asus_rfkill_hotplug(asus);
4950
4951 if (asus->bluetooth.rfkill) {
4952 bl = !asus_wmi_get_devstate_simple(asus,
4953 ASUS_WMI_DEVID_BLUETOOTH);
4954 rfkill_set_sw_state(asus->bluetooth.rfkill, bl);
4955 }
4956 if (asus->wimax.rfkill) {
4957 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WIMAX);
4958 rfkill_set_sw_state(asus->wimax.rfkill, bl);
4959 }
4960 if (asus->wwan3g.rfkill) {
4961 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WWAN3G);
4962 rfkill_set_sw_state(asus->wwan3g.rfkill, bl);
4963 }
4964 if (asus->gps.rfkill) {
4965 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPS);
4966 rfkill_set_sw_state(asus->gps.rfkill, bl);
4967 }
4968 if (asus->uwb.rfkill) {
4969 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_UWB);
4970 rfkill_set_sw_state(asus->uwb.rfkill, bl);
4971 }
4972 if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
4973 kbd_led_update(asus);
4974
4975 if (asus_wmi_has_fnlock_key(asus))
4976 asus_wmi_fnlock_update(asus);
4977
4978 asus_wmi_tablet_mode_get_state(asus);
4979 return 0;
4980}
4981
4982static const struct dev_pm_ops asus_pm_ops = {
4983 .thaw = asus_hotk_thaw,
4984 .restore = asus_hotk_restore,
4985 .resume = asus_hotk_resume,
4986 .resume_early = asus_hotk_resume_early,
4987 .prepare = asus_hotk_prepare,
4988};
4989
4990/* Registration ***************************************************************/
4991
4992static int asus_wmi_probe(struct platform_device *pdev)
4993{
4994 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
4995 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
4996 int ret;
4997
4998 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
4999 pr_warn("ASUS Management GUID not found\n");
5000 return -ENODEV;
5001 }
5002
5003 if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) {
5004 pr_warn("ASUS Event GUID not found\n");
5005 return -ENODEV;
5006 }
5007
5008 if (wdrv->probe) {
5009 ret = wdrv->probe(pdev);
5010 if (ret)
5011 return ret;
5012 }
5013
5014 return asus_wmi_add(pdev);
5015}
5016
5017static bool used;
5018
5019int __init_or_module asus_wmi_register_driver(struct asus_wmi_driver *driver)
5020{
5021 struct platform_driver *platform_driver;
5022 struct platform_device *platform_device;
5023
5024 if (used)
5025 return -EBUSY;
5026
5027 platform_driver = &driver->platform_driver;
5028 platform_driver->remove = asus_wmi_remove;
5029 platform_driver->driver.owner = driver->owner;
5030 platform_driver->driver.name = driver->name;
5031 platform_driver->driver.pm = &asus_pm_ops;
5032
5033 platform_device = platform_create_bundle(platform_driver,
5034 asus_wmi_probe,
5035 NULL, 0, NULL, 0);
5036 if (IS_ERR(platform_device))
5037 return PTR_ERR(platform_device);
5038
5039 used = true;
5040 return 0;
5041}
5042EXPORT_SYMBOL_GPL(asus_wmi_register_driver);
5043
5044void asus_wmi_unregister_driver(struct asus_wmi_driver *driver)
5045{
5046 platform_device_unregister(driver->platform_device);
5047 platform_driver_unregister(&driver->platform_driver);
5048 used = false;
5049}
5050EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver);
5051
5052static int __init asus_wmi_init(void)
5053{
5054 pr_info("ASUS WMI generic driver loaded\n");
5055 return 0;
5056}
5057
5058static void __exit asus_wmi_exit(void)
5059{
5060 pr_info("ASUS WMI generic driver unloaded\n");
5061}
5062
5063module_init(asus_wmi_init);
5064module_exit(asus_wmi_exit);