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 <acpi/acpi_bus.h>
49 #include <acpi/acpi_drivers.h>
50 #include <acpi/video.h>
54 MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>, "
55 "Yong Wang <yong.y.wang@intel.com>");
56 MODULE_DESCRIPTION("Asus Generic WMI Driver");
57 MODULE_LICENSE("GPL");
59 #define to_platform_driver(drv) \
60 (container_of((drv), struct platform_driver, driver))
62 #define to_asus_wmi_driver(pdrv) \
63 (container_of((pdrv), struct asus_wmi_driver, platform_driver))
65 #define ASUS_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66"
67 #define NOTIFY_BRNUP_MIN 0x11
68 #define NOTIFY_BRNUP_MAX 0x1f
69 #define NOTIFY_BRNDOWN_MIN 0x20
70 #define NOTIFY_BRNDOWN_MAX 0x2e
71 #define NOTIFY_KBD_BRTUP 0xc4
72 #define NOTIFY_KBD_BRTDWN 0xc5
75 #define ASUS_WMI_METHODID_SPEC 0x43455053 /* BIOS SPECification */
76 #define ASUS_WMI_METHODID_SFBD 0x44424653 /* Set First Boot Device */
77 #define ASUS_WMI_METHODID_GLCD 0x44434C47 /* Get LCD status */
78 #define ASUS_WMI_METHODID_GPID 0x44495047 /* Get Panel ID?? (Resol) */
79 #define ASUS_WMI_METHODID_QMOD 0x444F4D51 /* Quiet MODe */
80 #define ASUS_WMI_METHODID_SPLV 0x4C425053 /* Set Panel Light Value */
81 #define ASUS_WMI_METHODID_SFUN 0x4E554653 /* FUNCtionalities */
82 #define ASUS_WMI_METHODID_SDSP 0x50534453 /* Set DiSPlay output */
83 #define ASUS_WMI_METHODID_GDSP 0x50534447 /* Get DiSPlay output */
84 #define ASUS_WMI_METHODID_DEVP 0x50564544 /* DEVice Policy */
85 #define ASUS_WMI_METHODID_OSVR 0x5256534F /* OS VeRsion */
86 #define ASUS_WMI_METHODID_DSTS 0x53544344 /* Device STatuS */
87 #define ASUS_WMI_METHODID_DSTS2 0x53545344 /* Device STatuS #2*/
88 #define ASUS_WMI_METHODID_BSTS 0x53545342 /* Bios STatuS ? */
89 #define ASUS_WMI_METHODID_DEVS 0x53564544 /* DEVice Set */
90 #define ASUS_WMI_METHODID_CFVS 0x53564643 /* CPU Frequency Volt Set */
91 #define ASUS_WMI_METHODID_KBFT 0x5446424B /* KeyBoard FilTer */
92 #define ASUS_WMI_METHODID_INIT 0x54494E49 /* INITialize */
93 #define ASUS_WMI_METHODID_HKEY 0x59454B48 /* Hot KEY ?? */
95 #define ASUS_WMI_UNSUPPORTED_METHOD 0xFFFFFFFE
98 #define ASUS_WMI_DEVID_HW_SWITCH 0x00010001
99 #define ASUS_WMI_DEVID_WIRELESS_LED 0x00010002
100 #define ASUS_WMI_DEVID_CWAP 0x00010003
101 #define ASUS_WMI_DEVID_WLAN 0x00010011
102 #define ASUS_WMI_DEVID_WLAN_LED 0x00010012
103 #define ASUS_WMI_DEVID_BLUETOOTH 0x00010013
104 #define ASUS_WMI_DEVID_GPS 0x00010015
105 #define ASUS_WMI_DEVID_WIMAX 0x00010017
106 #define ASUS_WMI_DEVID_WWAN3G 0x00010019
107 #define ASUS_WMI_DEVID_UWB 0x00010021
110 /* 0x000200XX and 0x000400XX */
111 #define ASUS_WMI_DEVID_LED1 0x00020011
112 #define ASUS_WMI_DEVID_LED2 0x00020012
113 #define ASUS_WMI_DEVID_LED3 0x00020013
114 #define ASUS_WMI_DEVID_LED4 0x00020014
115 #define ASUS_WMI_DEVID_LED5 0x00020015
116 #define ASUS_WMI_DEVID_LED6 0x00020016
118 /* Backlight and Brightness */
119 #define ASUS_WMI_DEVID_BACKLIGHT 0x00050011
120 #define ASUS_WMI_DEVID_BRIGHTNESS 0x00050012
121 #define ASUS_WMI_DEVID_KBD_BACKLIGHT 0x00050021
122 #define ASUS_WMI_DEVID_LIGHT_SENSOR 0x00050022 /* ?? */
125 #define ASUS_WMI_DEVID_CAMERA 0x00060013
128 #define ASUS_WMI_DEVID_CARDREADER 0x00080013
131 #define ASUS_WMI_DEVID_TOUCHPAD 0x00100011
132 #define ASUS_WMI_DEVID_TOUCHPAD_LED 0x00100012
135 #define ASUS_WMI_DEVID_THERMAL_CTRL 0x00110011
136 #define ASUS_WMI_DEVID_FAN_CTRL 0x00110012
139 #define ASUS_WMI_DEVID_PROCESSOR_STATE 0x00120012
141 /* Deep S3 / Resume on LID open */
142 #define ASUS_WMI_DEVID_LID_RESUME 0x00120031
145 #define ASUS_WMI_DSTS_STATUS_BIT 0x00000001
146 #define ASUS_WMI_DSTS_UNKNOWN_BIT 0x00000002
147 #define ASUS_WMI_DSTS_PRESENCE_BIT 0x00010000
148 #define ASUS_WMI_DSTS_USER_BIT 0x00020000
149 #define ASUS_WMI_DSTS_BIOS_BIT 0x00040000
150 #define ASUS_WMI_DSTS_BRIGHTNESS_MASK 0x000000FF
151 #define ASUS_WMI_DSTS_MAX_BRIGTH_MASK 0x0000FF00
159 * <platform>/ - debugfs root directory
160 * dev_id - current dev_id
161 * ctrl_param - current ctrl_param
162 * method_id - current method_id
163 * devs - call DEVS(dev_id, ctrl_param) and print result
164 * dsts - call DSTS(dev_id) and print result
165 * call - call method_id(dev_id, ctrl_param) and print result
167 struct asus_wmi_debug {
175 struct asus_wmi *asus;
176 struct rfkill *rfkill;
185 struct input_dev *inputdev;
186 struct backlight_device *backlight_device;
187 struct device *hwmon_device;
188 struct platform_device *platform_device;
190 struct led_classdev wlan_led;
192 struct led_classdev tpd_led;
194 struct led_classdev kbd_led;
196 struct workqueue_struct *led_workqueue;
197 struct work_struct tpd_led_work;
198 struct work_struct kbd_led_work;
199 struct work_struct wlan_led_work;
201 struct asus_rfkill wlan;
202 struct asus_rfkill bluetooth;
203 struct asus_rfkill wimax;
204 struct asus_rfkill wwan3g;
205 struct asus_rfkill gps;
206 struct asus_rfkill uwb;
208 struct hotplug_slot *hotplug_slot;
209 struct mutex hotplug_lock;
210 struct mutex wmi_lock;
211 struct workqueue_struct *hotplug_workqueue;
212 struct work_struct hotplug_work;
214 struct asus_wmi_debug debug;
216 struct asus_wmi_driver *driver;
219 static int asus_wmi_input_init(struct asus_wmi *asus)
223 asus->inputdev = input_allocate_device();
227 asus->inputdev->name = asus->driver->input_name;
228 asus->inputdev->phys = asus->driver->input_phys;
229 asus->inputdev->id.bustype = BUS_HOST;
230 asus->inputdev->dev.parent = &asus->platform_device->dev;
231 set_bit(EV_REP, asus->inputdev->evbit);
233 err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL);
237 err = input_register_device(asus->inputdev);
239 goto err_free_keymap;
244 sparse_keymap_free(asus->inputdev);
246 input_free_device(asus->inputdev);
250 static void asus_wmi_input_exit(struct asus_wmi *asus)
252 if (asus->inputdev) {
253 sparse_keymap_free(asus->inputdev);
254 input_unregister_device(asus->inputdev);
257 asus->inputdev = NULL;
260 static int asus_wmi_evaluate_method(u32 method_id, u32 arg0, u32 arg1,
263 struct bios_args args = {
267 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
268 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
270 union acpi_object *obj;
273 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 1, method_id,
276 if (ACPI_FAILURE(status))
279 obj = (union acpi_object *)output.pointer;
280 if (obj && obj->type == ACPI_TYPE_INTEGER)
281 tmp = (u32) obj->integer.value;
291 if (ACPI_FAILURE(status))
294 if (tmp == ASUS_WMI_UNSUPPORTED_METHOD)
300 static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval)
302 return asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval);
305 static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
308 return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS, dev_id,
312 /* Helper for special devices with magic return codes */
313 static int asus_wmi_get_devstate_bits(struct asus_wmi *asus,
314 u32 dev_id, u32 mask)
319 err = asus_wmi_get_devstate(asus, dev_id, &retval);
324 if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT))
327 if (mask == ASUS_WMI_DSTS_STATUS_BIT) {
328 if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT)
332 return retval & mask;
335 static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id)
337 return asus_wmi_get_devstate_bits(asus, dev_id,
338 ASUS_WMI_DSTS_STATUS_BIT);
345 * These functions actually update the LED's, and are called from a
346 * workqueue. By doing this as separate work rather than when the LED
347 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
348 * potentially bad time, such as a timer interrupt.
350 static void tpd_led_update(struct work_struct *work)
353 struct asus_wmi *asus;
355 asus = container_of(work, struct asus_wmi, tpd_led_work);
357 ctrl_param = asus->tpd_led_wk;
358 asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
361 static void tpd_led_set(struct led_classdev *led_cdev,
362 enum led_brightness value)
364 struct asus_wmi *asus;
366 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
368 asus->tpd_led_wk = !!value;
369 queue_work(asus->led_workqueue, &asus->tpd_led_work);
372 static int read_tpd_led_state(struct asus_wmi *asus)
374 return asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_TOUCHPAD_LED);
377 static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
379 struct asus_wmi *asus;
381 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
383 return read_tpd_led_state(asus);
386 static void kbd_led_update(struct work_struct *work)
389 struct asus_wmi *asus;
391 asus = container_of(work, struct asus_wmi, kbd_led_work);
395 * bit 7: light on/off
397 if (asus->kbd_led_wk > 0)
398 ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F);
400 asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL);
403 static int kbd_led_read(struct asus_wmi *asus, int *level, int *env)
409 * bit 7: light on/off
410 * bit 8-10: environment (0: dark, 1: normal, 2: light)
411 * bit 17: status unknown
413 retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT,
416 /* Unknown status is considered as off */
417 if (retval == 0x8000)
422 *level = retval & 0x7F;
424 *env = (retval >> 8) & 0x7F;
431 static void kbd_led_set(struct led_classdev *led_cdev,
432 enum led_brightness value)
434 struct asus_wmi *asus;
436 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
438 if (value > asus->kbd_led.max_brightness)
439 value = asus->kbd_led.max_brightness;
443 asus->kbd_led_wk = value;
444 queue_work(asus->led_workqueue, &asus->kbd_led_work);
447 static enum led_brightness kbd_led_get(struct led_classdev *led_cdev)
449 struct asus_wmi *asus;
452 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
454 retval = kbd_led_read(asus, &value, NULL);
462 static int wlan_led_unknown_state(struct asus_wmi *asus)
466 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
468 return result & ASUS_WMI_DSTS_UNKNOWN_BIT;
471 static int wlan_led_presence(struct asus_wmi *asus)
475 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
477 return result & ASUS_WMI_DSTS_PRESENCE_BIT;
480 static void wlan_led_update(struct work_struct *work)
483 struct asus_wmi *asus;
485 asus = container_of(work, struct asus_wmi, wlan_led_work);
487 ctrl_param = asus->wlan_led_wk;
488 asus_wmi_set_devstate(ASUS_WMI_DEVID_WIRELESS_LED, ctrl_param, NULL);
491 static void wlan_led_set(struct led_classdev *led_cdev,
492 enum led_brightness value)
494 struct asus_wmi *asus;
496 asus = container_of(led_cdev, struct asus_wmi, wlan_led);
498 asus->wlan_led_wk = !!value;
499 queue_work(asus->led_workqueue, &asus->wlan_led_work);
502 static enum led_brightness wlan_led_get(struct led_classdev *led_cdev)
504 struct asus_wmi *asus;
507 asus = container_of(led_cdev, struct asus_wmi, wlan_led);
508 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
510 return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
513 static void asus_wmi_led_exit(struct asus_wmi *asus)
515 if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
516 led_classdev_unregister(&asus->kbd_led);
517 if (!IS_ERR_OR_NULL(asus->tpd_led.dev))
518 led_classdev_unregister(&asus->tpd_led);
519 if (!IS_ERR_OR_NULL(asus->wlan_led.dev))
520 led_classdev_unregister(&asus->wlan_led);
521 if (asus->led_workqueue)
522 destroy_workqueue(asus->led_workqueue);
525 static int asus_wmi_led_init(struct asus_wmi *asus)
529 asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
530 if (!asus->led_workqueue)
533 if (read_tpd_led_state(asus) >= 0) {
534 INIT_WORK(&asus->tpd_led_work, tpd_led_update);
536 asus->tpd_led.name = "asus::touchpad";
537 asus->tpd_led.brightness_set = tpd_led_set;
538 asus->tpd_led.brightness_get = tpd_led_get;
539 asus->tpd_led.max_brightness = 1;
541 rv = led_classdev_register(&asus->platform_device->dev,
547 if (kbd_led_read(asus, NULL, NULL) >= 0) {
548 INIT_WORK(&asus->kbd_led_work, kbd_led_update);
550 asus->kbd_led.name = "asus::kbd_backlight";
551 asus->kbd_led.brightness_set = kbd_led_set;
552 asus->kbd_led.brightness_get = kbd_led_get;
553 asus->kbd_led.max_brightness = 3;
555 rv = led_classdev_register(&asus->platform_device->dev,
561 if (wlan_led_presence(asus)) {
562 INIT_WORK(&asus->wlan_led_work, wlan_led_update);
564 asus->wlan_led.name = "asus::wlan";
565 asus->wlan_led.brightness_set = wlan_led_set;
566 if (!wlan_led_unknown_state(asus))
567 asus->wlan_led.brightness_get = wlan_led_get;
568 asus->wlan_led.flags = LED_CORE_SUSPENDRESUME;
569 asus->wlan_led.max_brightness = 1;
570 asus->wlan_led.default_trigger = "asus-wlan";
572 rv = led_classdev_register(&asus->platform_device->dev,
578 asus_wmi_led_exit(asus);
585 * PCI hotplug (for wlan rfkill)
587 static bool asus_wlan_rfkill_blocked(struct asus_wmi *asus)
589 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
596 static void asus_rfkill_hotplug(struct asus_wmi *asus)
604 mutex_lock(&asus->wmi_lock);
605 blocked = asus_wlan_rfkill_blocked(asus);
606 mutex_unlock(&asus->wmi_lock);
608 mutex_lock(&asus->hotplug_lock);
610 if (asus->wlan.rfkill)
611 rfkill_set_sw_state(asus->wlan.rfkill, blocked);
613 if (asus->hotplug_slot) {
614 bus = pci_find_bus(0, 1);
616 pr_warn("Unable to find PCI bus 1?\n");
620 if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
621 pr_err("Unable to read PCI config space?\n");
624 absent = (l == 0xffffffff);
626 if (blocked != absent) {
627 pr_warn("BIOS says wireless lan is %s, "
628 "but the pci device is %s\n",
629 blocked ? "blocked" : "unblocked",
630 absent ? "absent" : "present");
631 pr_warn("skipped wireless hotplug as probably "
632 "inappropriate for this model\n");
637 dev = pci_get_slot(bus, 0);
639 /* Device already present */
643 dev = pci_scan_single_device(bus, 0);
645 pci_bus_assign_resources(bus);
646 if (pci_bus_add_device(dev))
647 pr_err("Unable to hotplug wifi\n");
650 dev = pci_get_slot(bus, 0);
652 pci_stop_and_remove_bus_device(dev);
659 mutex_unlock(&asus->hotplug_lock);
662 static void asus_rfkill_notify(acpi_handle handle, u32 event, void *data)
664 struct asus_wmi *asus = data;
666 if (event != ACPI_NOTIFY_BUS_CHECK)
670 * We can't call directly asus_rfkill_hotplug because most
671 * of the time WMBC is still being executed and not reetrant.
672 * There is currently no way to tell ACPICA that we want this
673 * method to be serialized, we schedule a asus_rfkill_hotplug
674 * call later, in a safer context.
676 queue_work(asus->hotplug_workqueue, &asus->hotplug_work);
679 static int asus_register_rfkill_notifier(struct asus_wmi *asus, char *node)
684 status = acpi_get_handle(NULL, node, &handle);
686 if (ACPI_SUCCESS(status)) {
687 status = acpi_install_notify_handler(handle,
689 asus_rfkill_notify, asus);
690 if (ACPI_FAILURE(status))
691 pr_warn("Failed to register notify on %s\n", node);
698 static void asus_unregister_rfkill_notifier(struct asus_wmi *asus, char *node)
700 acpi_status status = AE_OK;
703 status = acpi_get_handle(NULL, node, &handle);
705 if (ACPI_SUCCESS(status)) {
706 status = acpi_remove_notify_handler(handle,
709 if (ACPI_FAILURE(status))
710 pr_err("Error removing rfkill notify handler %s\n",
715 static int asus_get_adapter_status(struct hotplug_slot *hotplug_slot,
718 struct asus_wmi *asus = hotplug_slot->private;
719 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
728 static void asus_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot)
730 kfree(hotplug_slot->info);
734 static struct hotplug_slot_ops asus_hotplug_slot_ops = {
735 .owner = THIS_MODULE,
736 .get_adapter_status = asus_get_adapter_status,
737 .get_power_status = asus_get_adapter_status,
740 static void asus_hotplug_work(struct work_struct *work)
742 struct asus_wmi *asus;
744 asus = container_of(work, struct asus_wmi, hotplug_work);
745 asus_rfkill_hotplug(asus);
748 static int asus_setup_pci_hotplug(struct asus_wmi *asus)
751 struct pci_bus *bus = pci_find_bus(0, 1);
754 pr_err("Unable to find wifi PCI bus\n");
758 asus->hotplug_workqueue =
759 create_singlethread_workqueue("hotplug_workqueue");
760 if (!asus->hotplug_workqueue)
761 goto error_workqueue;
763 INIT_WORK(&asus->hotplug_work, asus_hotplug_work);
765 asus->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
766 if (!asus->hotplug_slot)
769 asus->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info),
771 if (!asus->hotplug_slot->info)
774 asus->hotplug_slot->private = asus;
775 asus->hotplug_slot->release = &asus_cleanup_pci_hotplug;
776 asus->hotplug_slot->ops = &asus_hotplug_slot_ops;
777 asus_get_adapter_status(asus->hotplug_slot,
778 &asus->hotplug_slot->info->adapter_status);
780 ret = pci_hp_register(asus->hotplug_slot, bus, 0, "asus-wifi");
782 pr_err("Unable to register hotplug slot - %d\n", ret);
789 kfree(asus->hotplug_slot->info);
791 kfree(asus->hotplug_slot);
792 asus->hotplug_slot = NULL;
794 destroy_workqueue(asus->hotplug_workqueue);
802 static int asus_rfkill_set(void *data, bool blocked)
804 struct asus_rfkill *priv = data;
805 u32 ctrl_param = !blocked;
806 u32 dev_id = priv->dev_id;
809 * If the user bit is set, BIOS can't set and record the wlan status,
810 * it will report the value read from id ASUS_WMI_DEVID_WLAN_LED
811 * while we query the wlan status through WMI(ASUS_WMI_DEVID_WLAN).
812 * So, we have to record wlan status in id ASUS_WMI_DEVID_WLAN_LED
813 * while setting the wlan status through WMI.
814 * This is also the behavior that windows app will do.
816 if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
817 priv->asus->driver->wlan_ctrl_by_user)
818 dev_id = ASUS_WMI_DEVID_WLAN_LED;
820 return asus_wmi_set_devstate(dev_id, ctrl_param, NULL);
823 static void asus_rfkill_query(struct rfkill *rfkill, void *data)
825 struct asus_rfkill *priv = data;
828 result = asus_wmi_get_devstate_simple(priv->asus, priv->dev_id);
833 rfkill_set_sw_state(priv->rfkill, !result);
836 static int asus_rfkill_wlan_set(void *data, bool blocked)
838 struct asus_rfkill *priv = data;
839 struct asus_wmi *asus = priv->asus;
843 * This handler is enabled only if hotplug is enabled.
844 * In this case, the asus_wmi_set_devstate() will
845 * trigger a wmi notification and we need to wait
846 * this call to finish before being able to call
849 mutex_lock(&asus->wmi_lock);
850 ret = asus_rfkill_set(data, blocked);
851 mutex_unlock(&asus->wmi_lock);
855 static const struct rfkill_ops asus_rfkill_wlan_ops = {
856 .set_block = asus_rfkill_wlan_set,
857 .query = asus_rfkill_query,
860 static const struct rfkill_ops asus_rfkill_ops = {
861 .set_block = asus_rfkill_set,
862 .query = asus_rfkill_query,
865 static int asus_new_rfkill(struct asus_wmi *asus,
866 struct asus_rfkill *arfkill,
867 const char *name, enum rfkill_type type, int dev_id)
869 int result = asus_wmi_get_devstate_simple(asus, dev_id);
870 struct rfkill **rfkill = &arfkill->rfkill;
875 arfkill->dev_id = dev_id;
876 arfkill->asus = asus;
878 if (dev_id == ASUS_WMI_DEVID_WLAN &&
879 asus->driver->quirks->hotplug_wireless)
880 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
881 &asus_rfkill_wlan_ops, arfkill);
883 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
884 &asus_rfkill_ops, arfkill);
889 if (dev_id == ASUS_WMI_DEVID_WLAN)
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", 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 SENSOR_DEVICE_ATTR(pwm1, S_IRUGO, asus_hwmon_pwm1, NULL, 0);
1074 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, asus_hwmon_temp1, NULL, 0);
1077 show_name(struct device *dev, struct device_attribute *attr, char *buf)
1079 return sprintf(buf, "asus\n");
1081 static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0);
1083 static struct attribute *hwmon_attributes[] = {
1084 &sensor_dev_attr_pwm1.dev_attr.attr,
1085 &sensor_dev_attr_temp1_input.dev_attr.attr,
1086 &sensor_dev_attr_name.dev_attr.attr,
1090 static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
1091 struct attribute *attr, int idx)
1093 struct device *dev = container_of(kobj, struct device, kobj);
1094 struct platform_device *pdev = to_platform_device(dev->parent);
1095 struct asus_wmi *asus = platform_get_drvdata(pdev);
1098 u32 value = ASUS_WMI_UNSUPPORTED_METHOD;
1100 if (attr == &sensor_dev_attr_pwm1.dev_attr.attr)
1101 dev_id = ASUS_WMI_DEVID_FAN_CTRL;
1102 else if (attr == &sensor_dev_attr_temp1_input.dev_attr.attr)
1103 dev_id = ASUS_WMI_DEVID_THERMAL_CTRL;
1106 int err = asus_wmi_get_devstate(asus, dev_id, &value);
1109 return 0; /* can't return negative here */
1112 if (dev_id == ASUS_WMI_DEVID_FAN_CTRL) {
1114 * We need to find a better way, probably using sfun,
1116 * Currently we disable it if:
1117 * - ASUS_WMI_UNSUPPORTED_METHOD is returned
1118 * - reverved bits are non-zero
1119 * - sfun and presence bit are not set
1121 if (value == ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000
1122 || (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT)))
1124 } else if (dev_id == ASUS_WMI_DEVID_THERMAL_CTRL) {
1125 /* If value is zero, something is clearly wrong */
1130 return ok ? attr->mode : 0;
1133 static struct attribute_group hwmon_attribute_group = {
1134 .is_visible = asus_hwmon_sysfs_is_visible,
1135 .attrs = hwmon_attributes
1138 static void asus_wmi_hwmon_exit(struct asus_wmi *asus)
1140 struct device *hwmon;
1142 hwmon = asus->hwmon_device;
1145 sysfs_remove_group(&hwmon->kobj, &hwmon_attribute_group);
1146 hwmon_device_unregister(hwmon);
1147 asus->hwmon_device = NULL;
1150 static int asus_wmi_hwmon_init(struct asus_wmi *asus)
1152 struct device *hwmon;
1155 hwmon = hwmon_device_register(&asus->platform_device->dev);
1156 if (IS_ERR(hwmon)) {
1157 pr_err("Could not register asus hwmon device\n");
1158 return PTR_ERR(hwmon);
1160 dev_set_drvdata(hwmon, asus);
1161 asus->hwmon_device = hwmon;
1162 result = sysfs_create_group(&hwmon->kobj, &hwmon_attribute_group);
1164 asus_wmi_hwmon_exit(asus);
1171 static int read_backlight_power(struct asus_wmi *asus)
1174 if (asus->driver->quirks->store_backlight_power)
1175 ret = !asus->driver->panel_power;
1177 ret = asus_wmi_get_devstate_simple(asus,
1178 ASUS_WMI_DEVID_BACKLIGHT);
1183 return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
1186 static int read_brightness_max(struct asus_wmi *asus)
1191 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
1196 retval = retval & ASUS_WMI_DSTS_MAX_BRIGTH_MASK;
1205 static int read_brightness(struct backlight_device *bd)
1207 struct asus_wmi *asus = bl_get_data(bd);
1211 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
1216 return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
1219 static u32 get_scalar_command(struct backlight_device *bd)
1221 struct asus_wmi *asus = bl_get_data(bd);
1224 if ((asus->driver->brightness < bd->props.brightness) ||
1225 bd->props.brightness == bd->props.max_brightness)
1226 ctrl_param = 0x00008001;
1227 else if ((asus->driver->brightness > bd->props.brightness) ||
1228 bd->props.brightness == 0)
1229 ctrl_param = 0x00008000;
1231 asus->driver->brightness = bd->props.brightness;
1236 static int update_bl_status(struct backlight_device *bd)
1238 struct asus_wmi *asus = bl_get_data(bd);
1242 power = read_backlight_power(asus);
1243 if (power != -ENODEV && bd->props.power != power) {
1244 ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK);
1245 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT,
1247 if (asus->driver->quirks->store_backlight_power)
1248 asus->driver->panel_power = bd->props.power;
1250 /* When using scalar brightness, updating the brightness
1251 * will mess with the backlight power */
1252 if (asus->driver->quirks->scalar_panel_brightness)
1256 if (asus->driver->quirks->scalar_panel_brightness)
1257 ctrl_param = get_scalar_command(bd);
1259 ctrl_param = bd->props.brightness;
1261 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS,
1267 static const struct backlight_ops asus_wmi_bl_ops = {
1268 .get_brightness = read_brightness,
1269 .update_status = update_bl_status,
1272 static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code)
1274 struct backlight_device *bd = asus->backlight_device;
1275 int old = bd->props.brightness;
1278 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
1279 new = code - NOTIFY_BRNUP_MIN + 1;
1280 else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
1281 new = code - NOTIFY_BRNDOWN_MIN;
1283 bd->props.brightness = new;
1284 backlight_update_status(bd);
1285 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
1290 static int asus_wmi_backlight_init(struct asus_wmi *asus)
1292 struct backlight_device *bd;
1293 struct backlight_properties props;
1297 max = read_brightness_max(asus);
1304 power = read_backlight_power(asus);
1306 if (power == -ENODEV)
1307 power = FB_BLANK_UNBLANK;
1311 memset(&props, 0, sizeof(struct backlight_properties));
1312 props.type = BACKLIGHT_PLATFORM;
1313 props.max_brightness = max;
1314 bd = backlight_device_register(asus->driver->name,
1315 &asus->platform_device->dev, asus,
1316 &asus_wmi_bl_ops, &props);
1318 pr_err("Could not register backlight device\n");
1322 asus->backlight_device = bd;
1324 if (asus->driver->quirks->store_backlight_power)
1325 asus->driver->panel_power = power;
1327 bd->props.brightness = read_brightness(bd);
1328 bd->props.power = power;
1329 backlight_update_status(bd);
1331 asus->driver->brightness = bd->props.brightness;
1336 static void asus_wmi_backlight_exit(struct asus_wmi *asus)
1338 if (asus->backlight_device)
1339 backlight_device_unregister(asus->backlight_device);
1341 asus->backlight_device = NULL;
1344 static int is_display_toggle(int code)
1346 /* display toggle keys */
1347 if ((code >= 0x61 && code <= 0x67) ||
1348 (code >= 0x8c && code <= 0x93) ||
1349 (code >= 0xa0 && code <= 0xa7) ||
1350 (code >= 0xd0 && code <= 0xd5))
1356 static void do_nothing(void)
1361 static void asus_wmi_notify(u32 value, void *context)
1363 struct asus_wmi *asus = context;
1364 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1365 union acpi_object *obj;
1369 unsigned int key_value = 1;
1370 bool autorelease = 1;
1372 status = wmi_get_event_data(value, &response);
1373 if (status != AE_OK) {
1374 pr_err("bad event status 0x%x\n", status);
1378 obj = (union acpi_object *)response.pointer;
1380 if (!obj || obj->type != ACPI_TYPE_INTEGER)
1383 code = obj->integer.value;
1386 if (asus->driver->key_filter) {
1387 asus->driver->key_filter(asus->driver, &code, &key_value,
1389 if (code == ASUS_WMI_KEY_IGNORE)
1393 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
1394 code = ASUS_WMI_BRN_UP;
1395 else if (code >= NOTIFY_BRNDOWN_MIN &&
1396 code <= NOTIFY_BRNDOWN_MAX)
1397 code = ASUS_WMI_BRN_DOWN;
1399 if (code == ASUS_WMI_BRN_DOWN || code == ASUS_WMI_BRN_UP) {
1400 if (!acpi_video_backlight_support()) {
1401 asus_wmi_backlight_notify(asus, orig_code);
1406 if (is_display_toggle(code) &&
1407 asus->driver->quirks->no_display_toggle)
1410 if (!sparse_keymap_report_event(asus->inputdev, code,
1411 key_value, autorelease))
1412 pr_info("Unknown key %x pressed\n", code);
1421 static int parse_arg(const char *buf, unsigned long count, int *val)
1425 if (sscanf(buf, "%i", val) != 1)
1430 static ssize_t store_sys_wmi(struct asus_wmi *asus, int devid,
1431 const char *buf, size_t count)
1436 value = asus_wmi_get_devstate_simple(asus, devid);
1437 if (value == -ENODEV) /* Check device presence */
1440 rv = parse_arg(buf, count, &value);
1441 err = asus_wmi_set_devstate(devid, value, &retval);
1449 static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
1451 int value = asus_wmi_get_devstate_simple(asus, devid);
1456 return sprintf(buf, "%d\n", value);
1459 #define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \
1460 static ssize_t show_##_name(struct device *dev, \
1461 struct device_attribute *attr, \
1464 struct asus_wmi *asus = dev_get_drvdata(dev); \
1466 return show_sys_wmi(asus, _cm, buf); \
1468 static ssize_t store_##_name(struct device *dev, \
1469 struct device_attribute *attr, \
1470 const char *buf, size_t count) \
1472 struct asus_wmi *asus = dev_get_drvdata(dev); \
1474 return store_sys_wmi(asus, _cm, buf, count); \
1476 static struct device_attribute dev_attr_##_name = { \
1478 .name = __stringify(_name), \
1480 .show = show_##_name, \
1481 .store = store_##_name, \
1484 ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD);
1485 ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA);
1486 ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
1487 ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume, 0644, ASUS_WMI_DEVID_LID_RESUME);
1489 static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr,
1490 const char *buf, size_t count)
1494 if (!count || sscanf(buf, "%i", &value) != 1)
1496 if (value < 0 || value > 2)
1499 rv = asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL);
1506 static DEVICE_ATTR(cpufv, S_IRUGO | S_IWUSR, NULL, store_cpufv);
1508 static struct attribute *platform_attributes[] = {
1509 &dev_attr_cpufv.attr,
1510 &dev_attr_camera.attr,
1511 &dev_attr_cardr.attr,
1512 &dev_attr_touchpad.attr,
1513 &dev_attr_lid_resume.attr,
1517 static umode_t asus_sysfs_is_visible(struct kobject *kobj,
1518 struct attribute *attr, int idx)
1520 struct device *dev = container_of(kobj, struct device, kobj);
1521 struct platform_device *pdev = to_platform_device(dev);
1522 struct asus_wmi *asus = platform_get_drvdata(pdev);
1526 if (attr == &dev_attr_camera.attr)
1527 devid = ASUS_WMI_DEVID_CAMERA;
1528 else if (attr == &dev_attr_cardr.attr)
1529 devid = ASUS_WMI_DEVID_CARDREADER;
1530 else if (attr == &dev_attr_touchpad.attr)
1531 devid = ASUS_WMI_DEVID_TOUCHPAD;
1532 else if (attr == &dev_attr_lid_resume.attr)
1533 devid = ASUS_WMI_DEVID_LID_RESUME;
1536 ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
1538 return ok ? attr->mode : 0;
1541 static struct attribute_group platform_attribute_group = {
1542 .is_visible = asus_sysfs_is_visible,
1543 .attrs = platform_attributes
1546 static void asus_wmi_sysfs_exit(struct platform_device *device)
1548 sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
1551 static int asus_wmi_sysfs_init(struct platform_device *device)
1553 return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
1559 static int asus_wmi_platform_init(struct asus_wmi *asus)
1563 /* INIT enable hotkeys on some models */
1564 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv))
1565 pr_info("Initialization: %#x", rv);
1567 /* We don't know yet what to do with this version... */
1568 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) {
1569 pr_info("BIOS WMI version: %d.%d", rv >> 16, rv & 0xFF);
1574 * The SFUN method probably allows the original driver to get the list
1575 * of features supported by a given model. For now, 0x0100 or 0x0800
1576 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
1577 * The significance of others is yet to be found.
1579 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) {
1580 pr_info("SFUN value: %#x", rv);
1585 * Eee PC and Notebooks seems to have different method_id for DSTS,
1586 * but it may also be related to the BIOS's SPEC.
1587 * Note, on most Eeepc, there is no way to check if a method exist
1588 * or note, while on notebooks, they returns 0xFFFFFFFE on failure,
1589 * but once again, SPEC may probably be used for that kind of things.
1591 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS, 0, 0, NULL))
1592 asus->dsts_id = ASUS_WMI_METHODID_DSTS;
1594 asus->dsts_id = ASUS_WMI_METHODID_DSTS2;
1596 /* CWAP allow to define the behavior of the Fn+F2 key,
1597 * this method doesn't seems to be present on Eee PCs */
1598 if (asus->driver->quirks->wapf >= 0)
1599 asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP,
1600 asus->driver->quirks->wapf, NULL);
1602 return asus_wmi_sysfs_init(asus->platform_device);
1605 static void asus_wmi_platform_exit(struct asus_wmi *asus)
1607 asus_wmi_sysfs_exit(asus->platform_device);
1613 struct asus_wmi_debugfs_node {
1614 struct asus_wmi *asus;
1616 int (*show) (struct seq_file *m, void *data);
1619 static int show_dsts(struct seq_file *m, void *data)
1621 struct asus_wmi *asus = m->private;
1625 err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
1630 seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval);
1635 static int show_devs(struct seq_file *m, void *data)
1637 struct asus_wmi *asus = m->private;
1641 err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
1647 seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id,
1648 asus->debug.ctrl_param, retval);
1653 static int show_call(struct seq_file *m, void *data)
1655 struct asus_wmi *asus = m->private;
1656 struct bios_args args = {
1657 .arg0 = asus->debug.dev_id,
1658 .arg1 = asus->debug.ctrl_param,
1660 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
1661 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1662 union acpi_object *obj;
1665 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
1666 1, asus->debug.method_id,
1669 if (ACPI_FAILURE(status))
1672 obj = (union acpi_object *)output.pointer;
1673 if (obj && obj->type == ACPI_TYPE_INTEGER)
1674 seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id,
1675 asus->debug.dev_id, asus->debug.ctrl_param,
1676 (u32) obj->integer.value);
1678 seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id,
1679 asus->debug.dev_id, asus->debug.ctrl_param,
1680 obj ? obj->type : -1);
1687 static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = {
1688 {NULL, "devs", show_devs},
1689 {NULL, "dsts", show_dsts},
1690 {NULL, "call", show_call},
1693 static int asus_wmi_debugfs_open(struct inode *inode, struct file *file)
1695 struct asus_wmi_debugfs_node *node = inode->i_private;
1697 return single_open(file, node->show, node->asus);
1700 static const struct file_operations asus_wmi_debugfs_io_ops = {
1701 .owner = THIS_MODULE,
1702 .open = asus_wmi_debugfs_open,
1704 .llseek = seq_lseek,
1705 .release = single_release,
1708 static void asus_wmi_debugfs_exit(struct asus_wmi *asus)
1710 debugfs_remove_recursive(asus->debug.root);
1713 static int asus_wmi_debugfs_init(struct asus_wmi *asus)
1715 struct dentry *dent;
1718 asus->debug.root = debugfs_create_dir(asus->driver->name, NULL);
1719 if (!asus->debug.root) {
1720 pr_err("failed to create debugfs directory");
1724 dent = debugfs_create_x32("method_id", S_IRUGO | S_IWUSR,
1725 asus->debug.root, &asus->debug.method_id);
1729 dent = debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR,
1730 asus->debug.root, &asus->debug.dev_id);
1734 dent = debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR,
1735 asus->debug.root, &asus->debug.ctrl_param);
1739 for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) {
1740 struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i];
1743 dent = debugfs_create_file(node->name, S_IFREG | S_IRUGO,
1744 asus->debug.root, node,
1745 &asus_wmi_debugfs_io_ops);
1747 pr_err("failed to create debug file: %s\n", node->name);
1755 asus_wmi_debugfs_exit(asus);
1762 static int asus_wmi_add(struct platform_device *pdev)
1764 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
1765 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
1766 struct asus_wmi *asus;
1771 asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL);
1775 asus->driver = wdrv;
1776 asus->platform_device = pdev;
1777 wdrv->platform_device = pdev;
1778 platform_set_drvdata(asus->platform_device, asus);
1780 if (wdrv->detect_quirks)
1781 wdrv->detect_quirks(asus->driver);
1783 err = asus_wmi_platform_init(asus);
1787 err = asus_wmi_input_init(asus);
1791 err = asus_wmi_hwmon_init(asus);
1795 err = asus_wmi_led_init(asus);
1799 err = asus_wmi_rfkill_init(asus);
1803 if (asus->driver->quirks->wmi_backlight_power)
1804 acpi_video_dmi_promote_vendor();
1805 if (!acpi_video_backlight_support()) {
1806 pr_info("Disabling ACPI video driver\n");
1807 acpi_video_unregister();
1808 err = asus_wmi_backlight_init(asus);
1809 if (err && err != -ENODEV)
1810 goto fail_backlight;
1812 pr_info("Backlight controlled by ACPI video driver\n");
1814 status = wmi_install_notify_handler(asus->driver->event_guid,
1815 asus_wmi_notify, asus);
1816 if (ACPI_FAILURE(status)) {
1817 pr_err("Unable to register notify handler - %d\n", status);
1819 goto fail_wmi_handler;
1822 err = asus_wmi_debugfs_init(asus);
1826 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result);
1827 if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT))
1828 asus->driver->wlan_ctrl_by_user = 1;
1833 wmi_remove_notify_handler(asus->driver->event_guid);
1835 asus_wmi_backlight_exit(asus);
1837 asus_wmi_rfkill_exit(asus);
1839 asus_wmi_led_exit(asus);
1841 asus_wmi_hwmon_exit(asus);
1843 asus_wmi_input_exit(asus);
1845 asus_wmi_platform_exit(asus);
1851 static int asus_wmi_remove(struct platform_device *device)
1853 struct asus_wmi *asus;
1855 asus = platform_get_drvdata(device);
1856 wmi_remove_notify_handler(asus->driver->event_guid);
1857 asus_wmi_backlight_exit(asus);
1858 asus_wmi_input_exit(asus);
1859 asus_wmi_hwmon_exit(asus);
1860 asus_wmi_led_exit(asus);
1861 asus_wmi_rfkill_exit(asus);
1862 asus_wmi_debugfs_exit(asus);
1863 asus_wmi_platform_exit(asus);
1870 * Platform driver - hibernate/resume callbacks
1872 static int asus_hotk_thaw(struct device *device)
1874 struct asus_wmi *asus = dev_get_drvdata(device);
1876 if (asus->wlan.rfkill) {
1880 * Work around bios bug - acpi _PTS turns off the wireless led
1881 * during suspend. Normally it restores it on resume, but
1882 * we should kick it ourselves in case hibernation is aborted.
1884 wlan = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
1885 asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL);
1891 static int asus_hotk_restore(struct device *device)
1893 struct asus_wmi *asus = dev_get_drvdata(device);
1896 /* Refresh both wlan rfkill state and pci hotplug */
1897 if (asus->wlan.rfkill)
1898 asus_rfkill_hotplug(asus);
1900 if (asus->bluetooth.rfkill) {
1901 bl = !asus_wmi_get_devstate_simple(asus,
1902 ASUS_WMI_DEVID_BLUETOOTH);
1903 rfkill_set_sw_state(asus->bluetooth.rfkill, bl);
1905 if (asus->wimax.rfkill) {
1906 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WIMAX);
1907 rfkill_set_sw_state(asus->wimax.rfkill, bl);
1909 if (asus->wwan3g.rfkill) {
1910 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WWAN3G);
1911 rfkill_set_sw_state(asus->wwan3g.rfkill, bl);
1913 if (asus->gps.rfkill) {
1914 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPS);
1915 rfkill_set_sw_state(asus->gps.rfkill, bl);
1917 if (asus->uwb.rfkill) {
1918 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_UWB);
1919 rfkill_set_sw_state(asus->uwb.rfkill, bl);
1925 static const struct dev_pm_ops asus_pm_ops = {
1926 .thaw = asus_hotk_thaw,
1927 .restore = asus_hotk_restore,
1930 static int asus_wmi_probe(struct platform_device *pdev)
1932 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
1933 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
1936 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
1937 pr_warn("Management GUID not found\n");
1941 if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) {
1942 pr_warn("Event GUID not found\n");
1947 ret = wdrv->probe(pdev);
1952 return asus_wmi_add(pdev);
1957 int __init_or_module asus_wmi_register_driver(struct asus_wmi_driver *driver)
1959 struct platform_driver *platform_driver;
1960 struct platform_device *platform_device;
1965 platform_driver = &driver->platform_driver;
1966 platform_driver->remove = asus_wmi_remove;
1967 platform_driver->driver.owner = driver->owner;
1968 platform_driver->driver.name = driver->name;
1969 platform_driver->driver.pm = &asus_pm_ops;
1971 platform_device = platform_create_bundle(platform_driver,
1974 if (IS_ERR(platform_device))
1975 return PTR_ERR(platform_device);
1980 EXPORT_SYMBOL_GPL(asus_wmi_register_driver);
1982 void asus_wmi_unregister_driver(struct asus_wmi_driver *driver)
1984 platform_device_unregister(driver->platform_device);
1985 platform_driver_unregister(&driver->platform_driver);
1988 EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver);
1990 static int __init asus_wmi_init(void)
1992 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
1993 pr_info("Asus Management GUID not found");
1997 pr_info("ASUS WMI generic driver loaded");
2001 static void __exit asus_wmi_exit(void)
2003 pr_info("ASUS WMI generic driver unloaded");
2006 module_init(asus_wmi_init);
2007 module_exit(asus_wmi_exit);