2 * Asus PC WMI hotkey driver
4 * Copyright(C) 2010 Intel Corporation.
5 * Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com>
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>
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.
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.
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
27 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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>
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 <linux/acpi.h>
49 #include <acpi/video.h>
53 MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>, "
54 "Yong Wang <yong.y.wang@intel.com>");
55 MODULE_DESCRIPTION("Asus Generic WMI Driver");
56 MODULE_LICENSE("GPL");
58 #define to_platform_driver(drv) \
59 (container_of((drv), struct platform_driver, driver))
61 #define to_asus_wmi_driver(pdrv) \
62 (container_of((pdrv), struct asus_wmi_driver, platform_driver))
64 #define ASUS_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66"
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
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 ?? */
94 #define ASUS_WMI_UNSUPPORTED_METHOD 0xFFFFFFFE
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_WLAN_LED 0x00010012
102 #define ASUS_WMI_DEVID_BLUETOOTH 0x00010013
103 #define ASUS_WMI_DEVID_GPS 0x00010015
104 #define ASUS_WMI_DEVID_WIMAX 0x00010017
105 #define ASUS_WMI_DEVID_WWAN3G 0x00010019
106 #define ASUS_WMI_DEVID_UWB 0x00010021
109 /* 0x000200XX and 0x000400XX */
110 #define ASUS_WMI_DEVID_LED1 0x00020011
111 #define ASUS_WMI_DEVID_LED2 0x00020012
112 #define ASUS_WMI_DEVID_LED3 0x00020013
113 #define ASUS_WMI_DEVID_LED4 0x00020014
114 #define ASUS_WMI_DEVID_LED5 0x00020015
115 #define ASUS_WMI_DEVID_LED6 0x00020016
117 /* Backlight and Brightness */
118 #define ASUS_WMI_DEVID_BACKLIGHT 0x00050011
119 #define ASUS_WMI_DEVID_BRIGHTNESS 0x00050012
120 #define ASUS_WMI_DEVID_KBD_BACKLIGHT 0x00050021
121 #define ASUS_WMI_DEVID_LIGHT_SENSOR 0x00050022 /* ?? */
124 #define ASUS_WMI_DEVID_CAMERA 0x00060013
127 #define ASUS_WMI_DEVID_CARDREADER 0x00080013
130 #define ASUS_WMI_DEVID_TOUCHPAD 0x00100011
131 #define ASUS_WMI_DEVID_TOUCHPAD_LED 0x00100012
134 #define ASUS_WMI_DEVID_THERMAL_CTRL 0x00110011
135 #define ASUS_WMI_DEVID_FAN_CTRL 0x00110012
138 #define ASUS_WMI_DEVID_PROCESSOR_STATE 0x00120012
140 /* Deep S3 / Resume on LID open */
141 #define ASUS_WMI_DEVID_LID_RESUME 0x00120031
144 #define ASUS_WMI_DSTS_STATUS_BIT 0x00000001
145 #define ASUS_WMI_DSTS_UNKNOWN_BIT 0x00000002
146 #define ASUS_WMI_DSTS_PRESENCE_BIT 0x00010000
147 #define ASUS_WMI_DSTS_USER_BIT 0x00020000
148 #define ASUS_WMI_DSTS_BIOS_BIT 0x00040000
149 #define ASUS_WMI_DSTS_BRIGHTNESS_MASK 0x000000FF
150 #define ASUS_WMI_DSTS_MAX_BRIGTH_MASK 0x0000FF00
158 * <platform>/ - debugfs root directory
159 * dev_id - current dev_id
160 * ctrl_param - current ctrl_param
161 * method_id - current method_id
162 * devs - call DEVS(dev_id, ctrl_param) and print result
163 * dsts - call DSTS(dev_id) and print result
164 * call - call method_id(dev_id, ctrl_param) and print result
166 struct asus_wmi_debug {
174 struct asus_wmi *asus;
175 struct rfkill *rfkill;
184 struct input_dev *inputdev;
185 struct backlight_device *backlight_device;
186 struct platform_device *platform_device;
188 struct led_classdev wlan_led;
190 struct led_classdev tpd_led;
192 struct led_classdev kbd_led;
194 struct workqueue_struct *led_workqueue;
195 struct work_struct tpd_led_work;
196 struct work_struct kbd_led_work;
197 struct work_struct wlan_led_work;
199 struct asus_rfkill wlan;
200 struct asus_rfkill bluetooth;
201 struct asus_rfkill wimax;
202 struct asus_rfkill wwan3g;
203 struct asus_rfkill gps;
204 struct asus_rfkill uwb;
206 struct hotplug_slot *hotplug_slot;
207 struct mutex hotplug_lock;
208 struct mutex wmi_lock;
209 struct workqueue_struct *hotplug_workqueue;
210 struct work_struct hotplug_work;
212 struct asus_wmi_debug debug;
214 struct asus_wmi_driver *driver;
217 static int asus_wmi_input_init(struct asus_wmi *asus)
221 asus->inputdev = input_allocate_device();
225 asus->inputdev->name = asus->driver->input_name;
226 asus->inputdev->phys = asus->driver->input_phys;
227 asus->inputdev->id.bustype = BUS_HOST;
228 asus->inputdev->dev.parent = &asus->platform_device->dev;
229 set_bit(EV_REP, asus->inputdev->evbit);
231 err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL);
235 err = input_register_device(asus->inputdev);
237 goto err_free_keymap;
242 sparse_keymap_free(asus->inputdev);
244 input_free_device(asus->inputdev);
248 static void asus_wmi_input_exit(struct asus_wmi *asus)
250 if (asus->inputdev) {
251 sparse_keymap_free(asus->inputdev);
252 input_unregister_device(asus->inputdev);
255 asus->inputdev = NULL;
258 static int asus_wmi_evaluate_method(u32 method_id, u32 arg0, u32 arg1,
261 struct bios_args args = {
265 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
266 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
268 union acpi_object *obj;
271 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 1, method_id,
274 if (ACPI_FAILURE(status))
277 obj = (union acpi_object *)output.pointer;
278 if (obj && obj->type == ACPI_TYPE_INTEGER)
279 tmp = (u32) obj->integer.value;
289 if (ACPI_FAILURE(status))
292 if (tmp == ASUS_WMI_UNSUPPORTED_METHOD)
298 static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval)
300 return asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval);
303 static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
306 return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS, dev_id,
310 /* Helper for special devices with magic return codes */
311 static int asus_wmi_get_devstate_bits(struct asus_wmi *asus,
312 u32 dev_id, u32 mask)
317 err = asus_wmi_get_devstate(asus, dev_id, &retval);
322 if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT))
325 if (mask == ASUS_WMI_DSTS_STATUS_BIT) {
326 if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT)
330 return retval & mask;
333 static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id)
335 return asus_wmi_get_devstate_bits(asus, dev_id,
336 ASUS_WMI_DSTS_STATUS_BIT);
343 * These functions actually update the LED's, and are called from a
344 * workqueue. By doing this as separate work rather than when the LED
345 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
346 * potentially bad time, such as a timer interrupt.
348 static void tpd_led_update(struct work_struct *work)
351 struct asus_wmi *asus;
353 asus = container_of(work, struct asus_wmi, tpd_led_work);
355 ctrl_param = asus->tpd_led_wk;
356 asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
359 static void tpd_led_set(struct led_classdev *led_cdev,
360 enum led_brightness value)
362 struct asus_wmi *asus;
364 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
366 asus->tpd_led_wk = !!value;
367 queue_work(asus->led_workqueue, &asus->tpd_led_work);
370 static int read_tpd_led_state(struct asus_wmi *asus)
372 return asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_TOUCHPAD_LED);
375 static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
377 struct asus_wmi *asus;
379 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
381 return read_tpd_led_state(asus);
384 static void kbd_led_update(struct work_struct *work)
387 struct asus_wmi *asus;
389 asus = container_of(work, struct asus_wmi, kbd_led_work);
393 * bit 7: light on/off
395 if (asus->kbd_led_wk > 0)
396 ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F);
398 asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL);
401 static int kbd_led_read(struct asus_wmi *asus, int *level, int *env)
407 * bit 7: light on/off
408 * bit 8-10: environment (0: dark, 1: normal, 2: light)
409 * bit 17: status unknown
411 retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT,
414 /* Unknown status is considered as off */
415 if (retval == 0x8000)
420 *level = retval & 0x7F;
422 *env = (retval >> 8) & 0x7F;
429 static void kbd_led_set(struct led_classdev *led_cdev,
430 enum led_brightness value)
432 struct asus_wmi *asus;
434 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
436 if (value > asus->kbd_led.max_brightness)
437 value = asus->kbd_led.max_brightness;
441 asus->kbd_led_wk = value;
442 queue_work(asus->led_workqueue, &asus->kbd_led_work);
445 static enum led_brightness kbd_led_get(struct led_classdev *led_cdev)
447 struct asus_wmi *asus;
450 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
452 retval = kbd_led_read(asus, &value, NULL);
460 static int wlan_led_unknown_state(struct asus_wmi *asus)
464 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
466 return result & ASUS_WMI_DSTS_UNKNOWN_BIT;
469 static int wlan_led_presence(struct asus_wmi *asus)
473 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
475 return result & ASUS_WMI_DSTS_PRESENCE_BIT;
478 static void wlan_led_update(struct work_struct *work)
481 struct asus_wmi *asus;
483 asus = container_of(work, struct asus_wmi, wlan_led_work);
485 ctrl_param = asus->wlan_led_wk;
486 asus_wmi_set_devstate(ASUS_WMI_DEVID_WIRELESS_LED, ctrl_param, NULL);
489 static void wlan_led_set(struct led_classdev *led_cdev,
490 enum led_brightness value)
492 struct asus_wmi *asus;
494 asus = container_of(led_cdev, struct asus_wmi, wlan_led);
496 asus->wlan_led_wk = !!value;
497 queue_work(asus->led_workqueue, &asus->wlan_led_work);
500 static enum led_brightness wlan_led_get(struct led_classdev *led_cdev)
502 struct asus_wmi *asus;
505 asus = container_of(led_cdev, struct asus_wmi, wlan_led);
506 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
508 return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
511 static void asus_wmi_led_exit(struct asus_wmi *asus)
513 if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
514 led_classdev_unregister(&asus->kbd_led);
515 if (!IS_ERR_OR_NULL(asus->tpd_led.dev))
516 led_classdev_unregister(&asus->tpd_led);
517 if (!IS_ERR_OR_NULL(asus->wlan_led.dev))
518 led_classdev_unregister(&asus->wlan_led);
519 if (asus->led_workqueue)
520 destroy_workqueue(asus->led_workqueue);
523 static int asus_wmi_led_init(struct asus_wmi *asus)
527 asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
528 if (!asus->led_workqueue)
531 if (read_tpd_led_state(asus) >= 0) {
532 INIT_WORK(&asus->tpd_led_work, tpd_led_update);
534 asus->tpd_led.name = "asus::touchpad";
535 asus->tpd_led.brightness_set = tpd_led_set;
536 asus->tpd_led.brightness_get = tpd_led_get;
537 asus->tpd_led.max_brightness = 1;
539 rv = led_classdev_register(&asus->platform_device->dev,
545 if (kbd_led_read(asus, NULL, NULL) >= 0) {
546 INIT_WORK(&asus->kbd_led_work, kbd_led_update);
548 asus->kbd_led.name = "asus::kbd_backlight";
549 asus->kbd_led.brightness_set = kbd_led_set;
550 asus->kbd_led.brightness_get = kbd_led_get;
551 asus->kbd_led.max_brightness = 3;
553 rv = led_classdev_register(&asus->platform_device->dev,
559 if (wlan_led_presence(asus) && (asus->driver->quirks->wapf == 4)) {
560 INIT_WORK(&asus->wlan_led_work, wlan_led_update);
562 asus->wlan_led.name = "asus::wlan";
563 asus->wlan_led.brightness_set = wlan_led_set;
564 if (!wlan_led_unknown_state(asus))
565 asus->wlan_led.brightness_get = wlan_led_get;
566 asus->wlan_led.flags = LED_CORE_SUSPENDRESUME;
567 asus->wlan_led.max_brightness = 1;
568 asus->wlan_led.default_trigger = "asus-wlan";
570 rv = led_classdev_register(&asus->platform_device->dev,
576 asus_wmi_led_exit(asus);
583 * PCI hotplug (for wlan rfkill)
585 static bool asus_wlan_rfkill_blocked(struct asus_wmi *asus)
587 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
594 static void asus_rfkill_hotplug(struct asus_wmi *asus)
602 mutex_lock(&asus->wmi_lock);
603 blocked = asus_wlan_rfkill_blocked(asus);
604 mutex_unlock(&asus->wmi_lock);
606 mutex_lock(&asus->hotplug_lock);
607 pci_lock_rescan_remove();
609 if (asus->wlan.rfkill)
610 rfkill_set_sw_state(asus->wlan.rfkill, blocked);
612 if (asus->hotplug_slot) {
613 bus = pci_find_bus(0, 1);
615 pr_warn("Unable to find PCI bus 1?\n");
619 if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
620 pr_err("Unable to read PCI config space?\n");
623 absent = (l == 0xffffffff);
625 if (blocked != absent) {
626 pr_warn("BIOS says wireless lan is %s, "
627 "but the pci device is %s\n",
628 blocked ? "blocked" : "unblocked",
629 absent ? "absent" : "present");
630 pr_warn("skipped wireless hotplug as probably "
631 "inappropriate for this model\n");
636 dev = pci_get_slot(bus, 0);
638 /* Device already present */
642 dev = pci_scan_single_device(bus, 0);
644 pci_bus_assign_resources(bus);
645 pci_bus_add_device(dev);
648 dev = pci_get_slot(bus, 0);
650 pci_stop_and_remove_bus_device(dev);
657 pci_unlock_rescan_remove();
658 mutex_unlock(&asus->hotplug_lock);
661 static void asus_rfkill_notify(acpi_handle handle, u32 event, void *data)
663 struct asus_wmi *asus = data;
665 if (event != ACPI_NOTIFY_BUS_CHECK)
669 * We can't call directly asus_rfkill_hotplug because most
670 * of the time WMBC is still being executed and not reetrant.
671 * There is currently no way to tell ACPICA that we want this
672 * method to be serialized, we schedule a asus_rfkill_hotplug
673 * call later, in a safer context.
675 queue_work(asus->hotplug_workqueue, &asus->hotplug_work);
678 static int asus_register_rfkill_notifier(struct asus_wmi *asus, char *node)
683 status = acpi_get_handle(NULL, node, &handle);
685 if (ACPI_SUCCESS(status)) {
686 status = acpi_install_notify_handler(handle,
688 asus_rfkill_notify, asus);
689 if (ACPI_FAILURE(status))
690 pr_warn("Failed to register notify on %s\n", node);
697 static void asus_unregister_rfkill_notifier(struct asus_wmi *asus, char *node)
699 acpi_status status = AE_OK;
702 status = acpi_get_handle(NULL, node, &handle);
704 if (ACPI_SUCCESS(status)) {
705 status = acpi_remove_notify_handler(handle,
708 if (ACPI_FAILURE(status))
709 pr_err("Error removing rfkill notify handler %s\n",
714 static int asus_get_adapter_status(struct hotplug_slot *hotplug_slot,
717 struct asus_wmi *asus = hotplug_slot->private;
718 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
727 static void asus_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot)
729 kfree(hotplug_slot->info);
733 static struct hotplug_slot_ops asus_hotplug_slot_ops = {
734 .owner = THIS_MODULE,
735 .get_adapter_status = asus_get_adapter_status,
736 .get_power_status = asus_get_adapter_status,
739 static void asus_hotplug_work(struct work_struct *work)
741 struct asus_wmi *asus;
743 asus = container_of(work, struct asus_wmi, hotplug_work);
744 asus_rfkill_hotplug(asus);
747 static int asus_setup_pci_hotplug(struct asus_wmi *asus)
750 struct pci_bus *bus = pci_find_bus(0, 1);
753 pr_err("Unable to find wifi PCI bus\n");
757 asus->hotplug_workqueue =
758 create_singlethread_workqueue("hotplug_workqueue");
759 if (!asus->hotplug_workqueue)
760 goto error_workqueue;
762 INIT_WORK(&asus->hotplug_work, asus_hotplug_work);
764 asus->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
765 if (!asus->hotplug_slot)
768 asus->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info),
770 if (!asus->hotplug_slot->info)
773 asus->hotplug_slot->private = asus;
774 asus->hotplug_slot->release = &asus_cleanup_pci_hotplug;
775 asus->hotplug_slot->ops = &asus_hotplug_slot_ops;
776 asus_get_adapter_status(asus->hotplug_slot,
777 &asus->hotplug_slot->info->adapter_status);
779 ret = pci_hp_register(asus->hotplug_slot, bus, 0, "asus-wifi");
781 pr_err("Unable to register hotplug slot - %d\n", ret);
788 kfree(asus->hotplug_slot->info);
790 kfree(asus->hotplug_slot);
791 asus->hotplug_slot = NULL;
793 destroy_workqueue(asus->hotplug_workqueue);
801 static int asus_rfkill_set(void *data, bool blocked)
803 struct asus_rfkill *priv = data;
804 u32 ctrl_param = !blocked;
805 u32 dev_id = priv->dev_id;
808 * If the user bit is set, BIOS can't set and record the wlan status,
809 * it will report the value read from id ASUS_WMI_DEVID_WLAN_LED
810 * while we query the wlan status through WMI(ASUS_WMI_DEVID_WLAN).
811 * So, we have to record wlan status in id ASUS_WMI_DEVID_WLAN_LED
812 * while setting the wlan status through WMI.
813 * This is also the behavior that windows app will do.
815 if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
816 priv->asus->driver->wlan_ctrl_by_user)
817 dev_id = ASUS_WMI_DEVID_WLAN_LED;
819 return asus_wmi_set_devstate(dev_id, ctrl_param, NULL);
822 static void asus_rfkill_query(struct rfkill *rfkill, void *data)
824 struct asus_rfkill *priv = data;
827 result = asus_wmi_get_devstate_simple(priv->asus, priv->dev_id);
832 rfkill_set_sw_state(priv->rfkill, !result);
835 static int asus_rfkill_wlan_set(void *data, bool blocked)
837 struct asus_rfkill *priv = data;
838 struct asus_wmi *asus = priv->asus;
842 * This handler is enabled only if hotplug is enabled.
843 * In this case, the asus_wmi_set_devstate() will
844 * trigger a wmi notification and we need to wait
845 * this call to finish before being able to call
848 mutex_lock(&asus->wmi_lock);
849 ret = asus_rfkill_set(data, blocked);
850 mutex_unlock(&asus->wmi_lock);
854 static const struct rfkill_ops asus_rfkill_wlan_ops = {
855 .set_block = asus_rfkill_wlan_set,
856 .query = asus_rfkill_query,
859 static const struct rfkill_ops asus_rfkill_ops = {
860 .set_block = asus_rfkill_set,
861 .query = asus_rfkill_query,
864 static int asus_new_rfkill(struct asus_wmi *asus,
865 struct asus_rfkill *arfkill,
866 const char *name, enum rfkill_type type, int dev_id)
868 int result = asus_wmi_get_devstate_simple(asus, dev_id);
869 struct rfkill **rfkill = &arfkill->rfkill;
874 arfkill->dev_id = dev_id;
875 arfkill->asus = asus;
877 if (dev_id == ASUS_WMI_DEVID_WLAN &&
878 asus->driver->quirks->hotplug_wireless)
879 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
880 &asus_rfkill_wlan_ops, arfkill);
882 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
883 &asus_rfkill_ops, arfkill);
888 if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
889 (asus->driver->quirks->wapf == 4))
890 rfkill_set_led_trigger_name(*rfkill, "asus-wlan");
892 rfkill_init_sw_state(*rfkill, !result);
893 result = rfkill_register(*rfkill);
895 rfkill_destroy(*rfkill);
902 static void asus_wmi_rfkill_exit(struct asus_wmi *asus)
904 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
905 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
906 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
907 if (asus->wlan.rfkill) {
908 rfkill_unregister(asus->wlan.rfkill);
909 rfkill_destroy(asus->wlan.rfkill);
910 asus->wlan.rfkill = NULL;
913 * Refresh pci hotplug in case the rfkill state was changed after
914 * asus_unregister_rfkill_notifier()
916 asus_rfkill_hotplug(asus);
917 if (asus->hotplug_slot)
918 pci_hp_deregister(asus->hotplug_slot);
919 if (asus->hotplug_workqueue)
920 destroy_workqueue(asus->hotplug_workqueue);
922 if (asus->bluetooth.rfkill) {
923 rfkill_unregister(asus->bluetooth.rfkill);
924 rfkill_destroy(asus->bluetooth.rfkill);
925 asus->bluetooth.rfkill = NULL;
927 if (asus->wimax.rfkill) {
928 rfkill_unregister(asus->wimax.rfkill);
929 rfkill_destroy(asus->wimax.rfkill);
930 asus->wimax.rfkill = NULL;
932 if (asus->wwan3g.rfkill) {
933 rfkill_unregister(asus->wwan3g.rfkill);
934 rfkill_destroy(asus->wwan3g.rfkill);
935 asus->wwan3g.rfkill = NULL;
937 if (asus->gps.rfkill) {
938 rfkill_unregister(asus->gps.rfkill);
939 rfkill_destroy(asus->gps.rfkill);
940 asus->gps.rfkill = NULL;
942 if (asus->uwb.rfkill) {
943 rfkill_unregister(asus->uwb.rfkill);
944 rfkill_destroy(asus->uwb.rfkill);
945 asus->uwb.rfkill = NULL;
949 static int asus_wmi_rfkill_init(struct asus_wmi *asus)
953 mutex_init(&asus->hotplug_lock);
954 mutex_init(&asus->wmi_lock);
956 result = asus_new_rfkill(asus, &asus->wlan, "asus-wlan",
957 RFKILL_TYPE_WLAN, ASUS_WMI_DEVID_WLAN);
959 if (result && result != -ENODEV)
962 result = asus_new_rfkill(asus, &asus->bluetooth,
963 "asus-bluetooth", RFKILL_TYPE_BLUETOOTH,
964 ASUS_WMI_DEVID_BLUETOOTH);
966 if (result && result != -ENODEV)
969 result = asus_new_rfkill(asus, &asus->wimax, "asus-wimax",
970 RFKILL_TYPE_WIMAX, ASUS_WMI_DEVID_WIMAX);
972 if (result && result != -ENODEV)
975 result = asus_new_rfkill(asus, &asus->wwan3g, "asus-wwan3g",
976 RFKILL_TYPE_WWAN, ASUS_WMI_DEVID_WWAN3G);
978 if (result && result != -ENODEV)
981 result = asus_new_rfkill(asus, &asus->gps, "asus-gps",
982 RFKILL_TYPE_GPS, ASUS_WMI_DEVID_GPS);
984 if (result && result != -ENODEV)
987 result = asus_new_rfkill(asus, &asus->uwb, "asus-uwb",
988 RFKILL_TYPE_UWB, ASUS_WMI_DEVID_UWB);
990 if (result && result != -ENODEV)
993 if (!asus->driver->quirks->hotplug_wireless)
996 result = asus_setup_pci_hotplug(asus);
998 * If we get -EBUSY then something else is handling the PCI hotplug -
999 * don't fail in this case
1001 if (result == -EBUSY)
1004 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
1005 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
1006 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
1008 * Refresh pci hotplug in case the rfkill state was changed during
1011 asus_rfkill_hotplug(asus);
1014 if (result && result != -ENODEV)
1015 asus_wmi_rfkill_exit(asus);
1017 if (result == -ENODEV)
1026 static ssize_t asus_hwmon_pwm1(struct device *dev,
1027 struct device_attribute *attr,
1030 struct asus_wmi *asus = dev_get_drvdata(dev);
1034 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
1041 if (value == 1) /* Low Speed */
1043 else if (value == 2)
1045 else if (value == 3)
1047 else if (value != 0) {
1048 pr_err("Unknown fan speed %#x\n", value);
1052 return sprintf(buf, "%d\n", value);
1055 static ssize_t asus_hwmon_temp1(struct device *dev,
1056 struct device_attribute *attr,
1059 struct asus_wmi *asus = dev_get_drvdata(dev);
1063 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_THERMAL_CTRL, &value);
1068 value = KELVIN_TO_CELSIUS((value & 0xFFFF)) * 1000;
1070 return sprintf(buf, "%d\n", value);
1073 static DEVICE_ATTR(pwm1, S_IRUGO, asus_hwmon_pwm1, NULL);
1074 static DEVICE_ATTR(temp1_input, S_IRUGO, asus_hwmon_temp1, NULL);
1076 static struct attribute *hwmon_attributes[] = {
1077 &dev_attr_pwm1.attr,
1078 &dev_attr_temp1_input.attr,
1082 static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
1083 struct attribute *attr, int idx)
1085 struct device *dev = container_of(kobj, struct device, kobj);
1086 struct platform_device *pdev = to_platform_device(dev->parent);
1087 struct asus_wmi *asus = platform_get_drvdata(pdev);
1090 u32 value = ASUS_WMI_UNSUPPORTED_METHOD;
1092 if (attr == &dev_attr_pwm1.attr)
1093 dev_id = ASUS_WMI_DEVID_FAN_CTRL;
1094 else if (attr == &dev_attr_temp1_input.attr)
1095 dev_id = ASUS_WMI_DEVID_THERMAL_CTRL;
1098 int err = asus_wmi_get_devstate(asus, dev_id, &value);
1101 return 0; /* can't return negative here */
1104 if (dev_id == ASUS_WMI_DEVID_FAN_CTRL) {
1106 * We need to find a better way, probably using sfun,
1108 * Currently we disable it if:
1109 * - ASUS_WMI_UNSUPPORTED_METHOD is returned
1110 * - reverved bits are non-zero
1111 * - sfun and presence bit are not set
1113 if (value == ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000
1114 || (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT)))
1116 } else if (dev_id == ASUS_WMI_DEVID_THERMAL_CTRL) {
1117 /* If value is zero, something is clearly wrong */
1122 return ok ? attr->mode : 0;
1125 static struct attribute_group hwmon_attribute_group = {
1126 .is_visible = asus_hwmon_sysfs_is_visible,
1127 .attrs = hwmon_attributes
1129 __ATTRIBUTE_GROUPS(hwmon_attribute);
1131 static int asus_wmi_hwmon_init(struct asus_wmi *asus)
1133 struct device *hwmon;
1135 hwmon = hwmon_device_register_with_groups(&asus->platform_device->dev,
1137 hwmon_attribute_groups);
1138 if (IS_ERR(hwmon)) {
1139 pr_err("Could not register asus hwmon device\n");
1140 return PTR_ERR(hwmon);
1148 static int read_backlight_power(struct asus_wmi *asus)
1151 if (asus->driver->quirks->store_backlight_power)
1152 ret = !asus->driver->panel_power;
1154 ret = asus_wmi_get_devstate_simple(asus,
1155 ASUS_WMI_DEVID_BACKLIGHT);
1160 return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
1163 static int read_brightness_max(struct asus_wmi *asus)
1168 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
1173 retval = retval & ASUS_WMI_DSTS_MAX_BRIGTH_MASK;
1182 static int read_brightness(struct backlight_device *bd)
1184 struct asus_wmi *asus = bl_get_data(bd);
1188 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
1193 return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
1196 static u32 get_scalar_command(struct backlight_device *bd)
1198 struct asus_wmi *asus = bl_get_data(bd);
1201 if ((asus->driver->brightness < bd->props.brightness) ||
1202 bd->props.brightness == bd->props.max_brightness)
1203 ctrl_param = 0x00008001;
1204 else if ((asus->driver->brightness > bd->props.brightness) ||
1205 bd->props.brightness == 0)
1206 ctrl_param = 0x00008000;
1208 asus->driver->brightness = bd->props.brightness;
1213 static int update_bl_status(struct backlight_device *bd)
1215 struct asus_wmi *asus = bl_get_data(bd);
1219 power = read_backlight_power(asus);
1220 if (power != -ENODEV && bd->props.power != power) {
1221 ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK);
1222 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT,
1224 if (asus->driver->quirks->store_backlight_power)
1225 asus->driver->panel_power = bd->props.power;
1227 /* When using scalar brightness, updating the brightness
1228 * will mess with the backlight power */
1229 if (asus->driver->quirks->scalar_panel_brightness)
1233 if (asus->driver->quirks->scalar_panel_brightness)
1234 ctrl_param = get_scalar_command(bd);
1236 ctrl_param = bd->props.brightness;
1238 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS,
1244 static const struct backlight_ops asus_wmi_bl_ops = {
1245 .get_brightness = read_brightness,
1246 .update_status = update_bl_status,
1249 static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code)
1251 struct backlight_device *bd = asus->backlight_device;
1252 int old = bd->props.brightness;
1255 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
1256 new = code - NOTIFY_BRNUP_MIN + 1;
1257 else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
1258 new = code - NOTIFY_BRNDOWN_MIN;
1260 bd->props.brightness = new;
1261 backlight_update_status(bd);
1262 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
1267 static int asus_wmi_backlight_init(struct asus_wmi *asus)
1269 struct backlight_device *bd;
1270 struct backlight_properties props;
1274 max = read_brightness_max(asus);
1281 power = read_backlight_power(asus);
1283 if (power == -ENODEV)
1284 power = FB_BLANK_UNBLANK;
1288 memset(&props, 0, sizeof(struct backlight_properties));
1289 props.type = BACKLIGHT_PLATFORM;
1290 props.max_brightness = max;
1291 bd = backlight_device_register(asus->driver->name,
1292 &asus->platform_device->dev, asus,
1293 &asus_wmi_bl_ops, &props);
1295 pr_err("Could not register backlight device\n");
1299 asus->backlight_device = bd;
1301 if (asus->driver->quirks->store_backlight_power)
1302 asus->driver->panel_power = power;
1304 bd->props.brightness = read_brightness(bd);
1305 bd->props.power = power;
1306 backlight_update_status(bd);
1308 asus->driver->brightness = bd->props.brightness;
1313 static void asus_wmi_backlight_exit(struct asus_wmi *asus)
1315 if (asus->backlight_device)
1316 backlight_device_unregister(asus->backlight_device);
1318 asus->backlight_device = NULL;
1321 static int is_display_toggle(int code)
1323 /* display toggle keys */
1324 if ((code >= 0x61 && code <= 0x67) ||
1325 (code >= 0x8c && code <= 0x93) ||
1326 (code >= 0xa0 && code <= 0xa7) ||
1327 (code >= 0xd0 && code <= 0xd5))
1333 static void asus_wmi_notify(u32 value, void *context)
1335 struct asus_wmi *asus = context;
1336 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1337 union acpi_object *obj;
1341 unsigned int key_value = 1;
1342 bool autorelease = 1;
1344 status = wmi_get_event_data(value, &response);
1345 if (status != AE_OK) {
1346 pr_err("bad event status 0x%x\n", status);
1350 obj = (union acpi_object *)response.pointer;
1352 if (!obj || obj->type != ACPI_TYPE_INTEGER)
1355 code = obj->integer.value;
1358 if (asus->driver->key_filter) {
1359 asus->driver->key_filter(asus->driver, &code, &key_value,
1361 if (code == ASUS_WMI_KEY_IGNORE)
1365 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
1366 code = ASUS_WMI_BRN_UP;
1367 else if (code >= NOTIFY_BRNDOWN_MIN &&
1368 code <= NOTIFY_BRNDOWN_MAX)
1369 code = ASUS_WMI_BRN_DOWN;
1371 if (code == ASUS_WMI_BRN_DOWN || code == ASUS_WMI_BRN_UP) {
1372 if (!acpi_video_backlight_support()) {
1373 asus_wmi_backlight_notify(asus, orig_code);
1378 if (is_display_toggle(code) &&
1379 asus->driver->quirks->no_display_toggle)
1382 if (!sparse_keymap_report_event(asus->inputdev, code,
1383 key_value, autorelease))
1384 pr_info("Unknown key %x pressed\n", code);
1393 static int parse_arg(const char *buf, unsigned long count, int *val)
1397 if (sscanf(buf, "%i", val) != 1)
1402 static ssize_t store_sys_wmi(struct asus_wmi *asus, int devid,
1403 const char *buf, size_t count)
1408 value = asus_wmi_get_devstate_simple(asus, devid);
1409 if (value == -ENODEV) /* Check device presence */
1412 rv = parse_arg(buf, count, &value);
1413 err = asus_wmi_set_devstate(devid, value, &retval);
1421 static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
1423 int value = asus_wmi_get_devstate_simple(asus, devid);
1428 return sprintf(buf, "%d\n", value);
1431 #define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \
1432 static ssize_t show_##_name(struct device *dev, \
1433 struct device_attribute *attr, \
1436 struct asus_wmi *asus = dev_get_drvdata(dev); \
1438 return show_sys_wmi(asus, _cm, buf); \
1440 static ssize_t store_##_name(struct device *dev, \
1441 struct device_attribute *attr, \
1442 const char *buf, size_t count) \
1444 struct asus_wmi *asus = dev_get_drvdata(dev); \
1446 return store_sys_wmi(asus, _cm, buf, count); \
1448 static struct device_attribute dev_attr_##_name = { \
1450 .name = __stringify(_name), \
1452 .show = show_##_name, \
1453 .store = store_##_name, \
1456 ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD);
1457 ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA);
1458 ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
1459 ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume, 0644, ASUS_WMI_DEVID_LID_RESUME);
1461 static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr,
1462 const char *buf, size_t count)
1466 if (!count || sscanf(buf, "%i", &value) != 1)
1468 if (value < 0 || value > 2)
1471 rv = asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL);
1478 static DEVICE_ATTR(cpufv, S_IRUGO | S_IWUSR, NULL, store_cpufv);
1480 static struct attribute *platform_attributes[] = {
1481 &dev_attr_cpufv.attr,
1482 &dev_attr_camera.attr,
1483 &dev_attr_cardr.attr,
1484 &dev_attr_touchpad.attr,
1485 &dev_attr_lid_resume.attr,
1489 static umode_t asus_sysfs_is_visible(struct kobject *kobj,
1490 struct attribute *attr, int idx)
1492 struct device *dev = container_of(kobj, struct device, kobj);
1493 struct platform_device *pdev = to_platform_device(dev);
1494 struct asus_wmi *asus = platform_get_drvdata(pdev);
1498 if (attr == &dev_attr_camera.attr)
1499 devid = ASUS_WMI_DEVID_CAMERA;
1500 else if (attr == &dev_attr_cardr.attr)
1501 devid = ASUS_WMI_DEVID_CARDREADER;
1502 else if (attr == &dev_attr_touchpad.attr)
1503 devid = ASUS_WMI_DEVID_TOUCHPAD;
1504 else if (attr == &dev_attr_lid_resume.attr)
1505 devid = ASUS_WMI_DEVID_LID_RESUME;
1508 ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
1510 return ok ? attr->mode : 0;
1513 static struct attribute_group platform_attribute_group = {
1514 .is_visible = asus_sysfs_is_visible,
1515 .attrs = platform_attributes
1518 static void asus_wmi_sysfs_exit(struct platform_device *device)
1520 sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
1523 static int asus_wmi_sysfs_init(struct platform_device *device)
1525 return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
1531 static int asus_wmi_platform_init(struct asus_wmi *asus)
1535 /* INIT enable hotkeys on some models */
1536 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv))
1537 pr_info("Initialization: %#x\n", rv);
1539 /* We don't know yet what to do with this version... */
1540 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) {
1541 pr_info("BIOS WMI version: %d.%d\n", rv >> 16, rv & 0xFF);
1546 * The SFUN method probably allows the original driver to get the list
1547 * of features supported by a given model. For now, 0x0100 or 0x0800
1548 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
1549 * The significance of others is yet to be found.
1551 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) {
1552 pr_info("SFUN value: %#x\n", rv);
1557 * Eee PC and Notebooks seems to have different method_id for DSTS,
1558 * but it may also be related to the BIOS's SPEC.
1559 * Note, on most Eeepc, there is no way to check if a method exist
1560 * or note, while on notebooks, they returns 0xFFFFFFFE on failure,
1561 * but once again, SPEC may probably be used for that kind of things.
1563 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS, 0, 0, NULL))
1564 asus->dsts_id = ASUS_WMI_METHODID_DSTS;
1566 asus->dsts_id = ASUS_WMI_METHODID_DSTS2;
1568 /* CWAP allow to define the behavior of the Fn+F2 key,
1569 * this method doesn't seems to be present on Eee PCs */
1570 if (asus->driver->quirks->wapf >= 0)
1571 asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP,
1572 asus->driver->quirks->wapf, NULL);
1574 return asus_wmi_sysfs_init(asus->platform_device);
1577 static void asus_wmi_platform_exit(struct asus_wmi *asus)
1579 asus_wmi_sysfs_exit(asus->platform_device);
1585 struct asus_wmi_debugfs_node {
1586 struct asus_wmi *asus;
1588 int (*show) (struct seq_file *m, void *data);
1591 static int show_dsts(struct seq_file *m, void *data)
1593 struct asus_wmi *asus = m->private;
1597 err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
1602 seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval);
1607 static int show_devs(struct seq_file *m, void *data)
1609 struct asus_wmi *asus = m->private;
1613 err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
1619 seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id,
1620 asus->debug.ctrl_param, retval);
1625 static int show_call(struct seq_file *m, void *data)
1627 struct asus_wmi *asus = m->private;
1628 struct bios_args args = {
1629 .arg0 = asus->debug.dev_id,
1630 .arg1 = asus->debug.ctrl_param,
1632 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
1633 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1634 union acpi_object *obj;
1637 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
1638 1, asus->debug.method_id,
1641 if (ACPI_FAILURE(status))
1644 obj = (union acpi_object *)output.pointer;
1645 if (obj && obj->type == ACPI_TYPE_INTEGER)
1646 seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id,
1647 asus->debug.dev_id, asus->debug.ctrl_param,
1648 (u32) obj->integer.value);
1650 seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id,
1651 asus->debug.dev_id, asus->debug.ctrl_param,
1652 obj ? obj->type : -1);
1659 static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = {
1660 {NULL, "devs", show_devs},
1661 {NULL, "dsts", show_dsts},
1662 {NULL, "call", show_call},
1665 static int asus_wmi_debugfs_open(struct inode *inode, struct file *file)
1667 struct asus_wmi_debugfs_node *node = inode->i_private;
1669 return single_open(file, node->show, node->asus);
1672 static const struct file_operations asus_wmi_debugfs_io_ops = {
1673 .owner = THIS_MODULE,
1674 .open = asus_wmi_debugfs_open,
1676 .llseek = seq_lseek,
1677 .release = single_release,
1680 static void asus_wmi_debugfs_exit(struct asus_wmi *asus)
1682 debugfs_remove_recursive(asus->debug.root);
1685 static int asus_wmi_debugfs_init(struct asus_wmi *asus)
1687 struct dentry *dent;
1690 asus->debug.root = debugfs_create_dir(asus->driver->name, NULL);
1691 if (!asus->debug.root) {
1692 pr_err("failed to create debugfs directory\n");
1696 dent = debugfs_create_x32("method_id", S_IRUGO | S_IWUSR,
1697 asus->debug.root, &asus->debug.method_id);
1701 dent = debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR,
1702 asus->debug.root, &asus->debug.dev_id);
1706 dent = debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR,
1707 asus->debug.root, &asus->debug.ctrl_param);
1711 for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) {
1712 struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i];
1715 dent = debugfs_create_file(node->name, S_IFREG | S_IRUGO,
1716 asus->debug.root, node,
1717 &asus_wmi_debugfs_io_ops);
1719 pr_err("failed to create debug file: %s\n", node->name);
1727 asus_wmi_debugfs_exit(asus);
1734 static int asus_wmi_add(struct platform_device *pdev)
1736 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
1737 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
1738 struct asus_wmi *asus;
1743 asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL);
1747 asus->driver = wdrv;
1748 asus->platform_device = pdev;
1749 wdrv->platform_device = pdev;
1750 platform_set_drvdata(asus->platform_device, asus);
1752 if (wdrv->detect_quirks)
1753 wdrv->detect_quirks(asus->driver);
1755 err = asus_wmi_platform_init(asus);
1759 err = asus_wmi_input_init(asus);
1763 err = asus_wmi_hwmon_init(asus);
1767 err = asus_wmi_led_init(asus);
1771 err = asus_wmi_rfkill_init(asus);
1775 if (asus->driver->quirks->wmi_backlight_power)
1776 acpi_video_dmi_promote_vendor();
1777 if (!acpi_video_backlight_support()) {
1778 pr_info("Disabling ACPI video driver\n");
1779 acpi_video_unregister();
1780 err = asus_wmi_backlight_init(asus);
1781 if (err && err != -ENODEV)
1782 goto fail_backlight;
1784 pr_info("Backlight controlled by ACPI video driver\n");
1786 status = wmi_install_notify_handler(asus->driver->event_guid,
1787 asus_wmi_notify, asus);
1788 if (ACPI_FAILURE(status)) {
1789 pr_err("Unable to register notify handler - %d\n", status);
1791 goto fail_wmi_handler;
1794 err = asus_wmi_debugfs_init(asus);
1798 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result);
1799 if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT))
1800 asus->driver->wlan_ctrl_by_user = 1;
1805 wmi_remove_notify_handler(asus->driver->event_guid);
1807 asus_wmi_backlight_exit(asus);
1809 asus_wmi_rfkill_exit(asus);
1811 asus_wmi_led_exit(asus);
1814 asus_wmi_input_exit(asus);
1816 asus_wmi_platform_exit(asus);
1822 static int asus_wmi_remove(struct platform_device *device)
1824 struct asus_wmi *asus;
1826 asus = platform_get_drvdata(device);
1827 wmi_remove_notify_handler(asus->driver->event_guid);
1828 asus_wmi_backlight_exit(asus);
1829 asus_wmi_input_exit(asus);
1830 asus_wmi_led_exit(asus);
1831 asus_wmi_rfkill_exit(asus);
1832 asus_wmi_debugfs_exit(asus);
1833 asus_wmi_platform_exit(asus);
1840 * Platform driver - hibernate/resume callbacks
1842 static int asus_hotk_thaw(struct device *device)
1844 struct asus_wmi *asus = dev_get_drvdata(device);
1846 if (asus->wlan.rfkill) {
1850 * Work around bios bug - acpi _PTS turns off the wireless led
1851 * during suspend. Normally it restores it on resume, but
1852 * we should kick it ourselves in case hibernation is aborted.
1854 wlan = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
1855 asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL);
1861 static int asus_hotk_restore(struct device *device)
1863 struct asus_wmi *asus = dev_get_drvdata(device);
1866 /* Refresh both wlan rfkill state and pci hotplug */
1867 if (asus->wlan.rfkill)
1868 asus_rfkill_hotplug(asus);
1870 if (asus->bluetooth.rfkill) {
1871 bl = !asus_wmi_get_devstate_simple(asus,
1872 ASUS_WMI_DEVID_BLUETOOTH);
1873 rfkill_set_sw_state(asus->bluetooth.rfkill, bl);
1875 if (asus->wimax.rfkill) {
1876 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WIMAX);
1877 rfkill_set_sw_state(asus->wimax.rfkill, bl);
1879 if (asus->wwan3g.rfkill) {
1880 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WWAN3G);
1881 rfkill_set_sw_state(asus->wwan3g.rfkill, bl);
1883 if (asus->gps.rfkill) {
1884 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPS);
1885 rfkill_set_sw_state(asus->gps.rfkill, bl);
1887 if (asus->uwb.rfkill) {
1888 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_UWB);
1889 rfkill_set_sw_state(asus->uwb.rfkill, bl);
1895 static const struct dev_pm_ops asus_pm_ops = {
1896 .thaw = asus_hotk_thaw,
1897 .restore = asus_hotk_restore,
1900 static int asus_wmi_probe(struct platform_device *pdev)
1902 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
1903 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
1906 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
1907 pr_warn("Management GUID not found\n");
1911 if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) {
1912 pr_warn("Event GUID not found\n");
1917 ret = wdrv->probe(pdev);
1922 return asus_wmi_add(pdev);
1927 int __init_or_module asus_wmi_register_driver(struct asus_wmi_driver *driver)
1929 struct platform_driver *platform_driver;
1930 struct platform_device *platform_device;
1935 platform_driver = &driver->platform_driver;
1936 platform_driver->remove = asus_wmi_remove;
1937 platform_driver->driver.owner = driver->owner;
1938 platform_driver->driver.name = driver->name;
1939 platform_driver->driver.pm = &asus_pm_ops;
1941 platform_device = platform_create_bundle(platform_driver,
1944 if (IS_ERR(platform_device))
1945 return PTR_ERR(platform_device);
1950 EXPORT_SYMBOL_GPL(asus_wmi_register_driver);
1952 void asus_wmi_unregister_driver(struct asus_wmi_driver *driver)
1954 platform_device_unregister(driver->platform_device);
1955 platform_driver_unregister(&driver->platform_driver);
1958 EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver);
1960 static int __init asus_wmi_init(void)
1962 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
1963 pr_info("Asus Management GUID not found\n");
1967 pr_info("ASUS WMI generic driver loaded\n");
1971 static void __exit asus_wmi_exit(void)
1973 pr_info("ASUS WMI generic driver unloaded\n");
1976 module_init(asus_wmi_init);
1977 module_exit(asus_wmi_exit);