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
;
287 if (ACPI_FAILURE(status
))
290 if (tmp
== ASUS_WMI_UNSUPPORTED_METHOD
)
296 static int asus_wmi_get_devstate(struct asus_wmi
*asus
, u32 dev_id
, u32
*retval
)
298 return asus_wmi_evaluate_method(asus
->dsts_id
, dev_id
, 0, retval
);
301 static int asus_wmi_set_devstate(u32 dev_id
, u32 ctrl_param
,
304 return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS
, dev_id
,
308 /* Helper for special devices with magic return codes */
309 static int asus_wmi_get_devstate_bits(struct asus_wmi
*asus
,
310 u32 dev_id
, u32 mask
)
315 err
= asus_wmi_get_devstate(asus
, dev_id
, &retval
);
320 if (!(retval
& ASUS_WMI_DSTS_PRESENCE_BIT
))
323 if (mask
== ASUS_WMI_DSTS_STATUS_BIT
) {
324 if (retval
& ASUS_WMI_DSTS_UNKNOWN_BIT
)
328 return retval
& mask
;
331 static int asus_wmi_get_devstate_simple(struct asus_wmi
*asus
, u32 dev_id
)
333 return asus_wmi_get_devstate_bits(asus
, dev_id
,
334 ASUS_WMI_DSTS_STATUS_BIT
);
341 * These functions actually update the LED's, and are called from a
342 * workqueue. By doing this as separate work rather than when the LED
343 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
344 * potentially bad time, such as a timer interrupt.
346 static void tpd_led_update(struct work_struct
*work
)
349 struct asus_wmi
*asus
;
351 asus
= container_of(work
, struct asus_wmi
, tpd_led_work
);
353 ctrl_param
= asus
->tpd_led_wk
;
354 asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED
, ctrl_param
, NULL
);
357 static void tpd_led_set(struct led_classdev
*led_cdev
,
358 enum led_brightness value
)
360 struct asus_wmi
*asus
;
362 asus
= container_of(led_cdev
, struct asus_wmi
, tpd_led
);
364 asus
->tpd_led_wk
= !!value
;
365 queue_work(asus
->led_workqueue
, &asus
->tpd_led_work
);
368 static int read_tpd_led_state(struct asus_wmi
*asus
)
370 return asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_TOUCHPAD_LED
);
373 static enum led_brightness
tpd_led_get(struct led_classdev
*led_cdev
)
375 struct asus_wmi
*asus
;
377 asus
= container_of(led_cdev
, struct asus_wmi
, tpd_led
);
379 return read_tpd_led_state(asus
);
382 static void kbd_led_update(struct work_struct
*work
)
385 struct asus_wmi
*asus
;
387 asus
= container_of(work
, struct asus_wmi
, kbd_led_work
);
391 * bit 7: light on/off
393 if (asus
->kbd_led_wk
> 0)
394 ctrl_param
= 0x80 | (asus
->kbd_led_wk
& 0x7F);
396 asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT
, ctrl_param
, NULL
);
399 static int kbd_led_read(struct asus_wmi
*asus
, int *level
, int *env
)
405 * bit 7: light on/off
406 * bit 8-10: environment (0: dark, 1: normal, 2: light)
407 * bit 17: status unknown
409 retval
= asus_wmi_get_devstate_bits(asus
, ASUS_WMI_DEVID_KBD_BACKLIGHT
,
412 /* Unknown status is considered as off */
413 if (retval
== 0x8000)
418 *level
= retval
& 0x7F;
420 *env
= (retval
>> 8) & 0x7F;
427 static void kbd_led_set(struct led_classdev
*led_cdev
,
428 enum led_brightness value
)
430 struct asus_wmi
*asus
;
432 asus
= container_of(led_cdev
, struct asus_wmi
, kbd_led
);
434 if (value
> asus
->kbd_led
.max_brightness
)
435 value
= asus
->kbd_led
.max_brightness
;
439 asus
->kbd_led_wk
= value
;
440 queue_work(asus
->led_workqueue
, &asus
->kbd_led_work
);
443 static enum led_brightness
kbd_led_get(struct led_classdev
*led_cdev
)
445 struct asus_wmi
*asus
;
448 asus
= container_of(led_cdev
, struct asus_wmi
, kbd_led
);
450 retval
= kbd_led_read(asus
, &value
, NULL
);
458 static int wlan_led_unknown_state(struct asus_wmi
*asus
)
462 asus_wmi_get_devstate(asus
, ASUS_WMI_DEVID_WIRELESS_LED
, &result
);
464 return result
& ASUS_WMI_DSTS_UNKNOWN_BIT
;
467 static int wlan_led_presence(struct asus_wmi
*asus
)
471 asus_wmi_get_devstate(asus
, ASUS_WMI_DEVID_WIRELESS_LED
, &result
);
473 return result
& ASUS_WMI_DSTS_PRESENCE_BIT
;
476 static void wlan_led_update(struct work_struct
*work
)
479 struct asus_wmi
*asus
;
481 asus
= container_of(work
, struct asus_wmi
, wlan_led_work
);
483 ctrl_param
= asus
->wlan_led_wk
;
484 asus_wmi_set_devstate(ASUS_WMI_DEVID_WIRELESS_LED
, ctrl_param
, NULL
);
487 static void wlan_led_set(struct led_classdev
*led_cdev
,
488 enum led_brightness value
)
490 struct asus_wmi
*asus
;
492 asus
= container_of(led_cdev
, struct asus_wmi
, wlan_led
);
494 asus
->wlan_led_wk
= !!value
;
495 queue_work(asus
->led_workqueue
, &asus
->wlan_led_work
);
498 static enum led_brightness
wlan_led_get(struct led_classdev
*led_cdev
)
500 struct asus_wmi
*asus
;
503 asus
= container_of(led_cdev
, struct asus_wmi
, wlan_led
);
504 asus_wmi_get_devstate(asus
, ASUS_WMI_DEVID_WIRELESS_LED
, &result
);
506 return result
& ASUS_WMI_DSTS_BRIGHTNESS_MASK
;
509 static void asus_wmi_led_exit(struct asus_wmi
*asus
)
511 if (!IS_ERR_OR_NULL(asus
->kbd_led
.dev
))
512 led_classdev_unregister(&asus
->kbd_led
);
513 if (!IS_ERR_OR_NULL(asus
->tpd_led
.dev
))
514 led_classdev_unregister(&asus
->tpd_led
);
515 if (!IS_ERR_OR_NULL(asus
->wlan_led
.dev
))
516 led_classdev_unregister(&asus
->wlan_led
);
517 if (asus
->led_workqueue
)
518 destroy_workqueue(asus
->led_workqueue
);
521 static int asus_wmi_led_init(struct asus_wmi
*asus
)
525 asus
->led_workqueue
= create_singlethread_workqueue("led_workqueue");
526 if (!asus
->led_workqueue
)
529 if (read_tpd_led_state(asus
) >= 0) {
530 INIT_WORK(&asus
->tpd_led_work
, tpd_led_update
);
532 asus
->tpd_led
.name
= "asus::touchpad";
533 asus
->tpd_led
.brightness_set
= tpd_led_set
;
534 asus
->tpd_led
.brightness_get
= tpd_led_get
;
535 asus
->tpd_led
.max_brightness
= 1;
537 rv
= led_classdev_register(&asus
->platform_device
->dev
,
543 if (kbd_led_read(asus
, NULL
, NULL
) >= 0) {
544 INIT_WORK(&asus
->kbd_led_work
, kbd_led_update
);
546 asus
->kbd_led
.name
= "asus::kbd_backlight";
547 asus
->kbd_led
.brightness_set
= kbd_led_set
;
548 asus
->kbd_led
.brightness_get
= kbd_led_get
;
549 asus
->kbd_led
.max_brightness
= 3;
551 rv
= led_classdev_register(&asus
->platform_device
->dev
,
557 if (wlan_led_presence(asus
) && (asus
->driver
->quirks
->wapf
== 4)) {
558 INIT_WORK(&asus
->wlan_led_work
, wlan_led_update
);
560 asus
->wlan_led
.name
= "asus::wlan";
561 asus
->wlan_led
.brightness_set
= wlan_led_set
;
562 if (!wlan_led_unknown_state(asus
))
563 asus
->wlan_led
.brightness_get
= wlan_led_get
;
564 asus
->wlan_led
.flags
= LED_CORE_SUSPENDRESUME
;
565 asus
->wlan_led
.max_brightness
= 1;
566 asus
->wlan_led
.default_trigger
= "asus-wlan";
568 rv
= led_classdev_register(&asus
->platform_device
->dev
,
574 asus_wmi_led_exit(asus
);
581 * PCI hotplug (for wlan rfkill)
583 static bool asus_wlan_rfkill_blocked(struct asus_wmi
*asus
)
585 int result
= asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_WLAN
);
592 static void asus_rfkill_hotplug(struct asus_wmi
*asus
)
600 mutex_lock(&asus
->wmi_lock
);
601 blocked
= asus_wlan_rfkill_blocked(asus
);
602 mutex_unlock(&asus
->wmi_lock
);
604 mutex_lock(&asus
->hotplug_lock
);
605 pci_lock_rescan_remove();
607 if (asus
->wlan
.rfkill
)
608 rfkill_set_sw_state(asus
->wlan
.rfkill
, blocked
);
610 if (asus
->hotplug_slot
) {
611 bus
= pci_find_bus(0, 1);
613 pr_warn("Unable to find PCI bus 1?\n");
617 if (pci_bus_read_config_dword(bus
, 0, PCI_VENDOR_ID
, &l
)) {
618 pr_err("Unable to read PCI config space?\n");
621 absent
= (l
== 0xffffffff);
623 if (blocked
!= absent
) {
624 pr_warn("BIOS says wireless lan is %s, "
625 "but the pci device is %s\n",
626 blocked
? "blocked" : "unblocked",
627 absent
? "absent" : "present");
628 pr_warn("skipped wireless hotplug as probably "
629 "inappropriate for this model\n");
634 dev
= pci_get_slot(bus
, 0);
636 /* Device already present */
640 dev
= pci_scan_single_device(bus
, 0);
642 pci_bus_assign_resources(bus
);
643 pci_bus_add_device(dev
);
646 dev
= pci_get_slot(bus
, 0);
648 pci_stop_and_remove_bus_device(dev
);
655 pci_unlock_rescan_remove();
656 mutex_unlock(&asus
->hotplug_lock
);
659 static void asus_rfkill_notify(acpi_handle handle
, u32 event
, void *data
)
661 struct asus_wmi
*asus
= data
;
663 if (event
!= ACPI_NOTIFY_BUS_CHECK
)
667 * We can't call directly asus_rfkill_hotplug because most
668 * of the time WMBC is still being executed and not reetrant.
669 * There is currently no way to tell ACPICA that we want this
670 * method to be serialized, we schedule a asus_rfkill_hotplug
671 * call later, in a safer context.
673 queue_work(asus
->hotplug_workqueue
, &asus
->hotplug_work
);
676 static int asus_register_rfkill_notifier(struct asus_wmi
*asus
, char *node
)
681 status
= acpi_get_handle(NULL
, node
, &handle
);
683 if (ACPI_SUCCESS(status
)) {
684 status
= acpi_install_notify_handler(handle
,
686 asus_rfkill_notify
, asus
);
687 if (ACPI_FAILURE(status
))
688 pr_warn("Failed to register notify on %s\n", node
);
695 static void asus_unregister_rfkill_notifier(struct asus_wmi
*asus
, char *node
)
697 acpi_status status
= AE_OK
;
700 status
= acpi_get_handle(NULL
, node
, &handle
);
702 if (ACPI_SUCCESS(status
)) {
703 status
= acpi_remove_notify_handler(handle
,
706 if (ACPI_FAILURE(status
))
707 pr_err("Error removing rfkill notify handler %s\n",
712 static int asus_get_adapter_status(struct hotplug_slot
*hotplug_slot
,
715 struct asus_wmi
*asus
= hotplug_slot
->private;
716 int result
= asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_WLAN
);
725 static void asus_cleanup_pci_hotplug(struct hotplug_slot
*hotplug_slot
)
727 kfree(hotplug_slot
->info
);
731 static struct hotplug_slot_ops asus_hotplug_slot_ops
= {
732 .owner
= THIS_MODULE
,
733 .get_adapter_status
= asus_get_adapter_status
,
734 .get_power_status
= asus_get_adapter_status
,
737 static void asus_hotplug_work(struct work_struct
*work
)
739 struct asus_wmi
*asus
;
741 asus
= container_of(work
, struct asus_wmi
, hotplug_work
);
742 asus_rfkill_hotplug(asus
);
745 static int asus_setup_pci_hotplug(struct asus_wmi
*asus
)
748 struct pci_bus
*bus
= pci_find_bus(0, 1);
751 pr_err("Unable to find wifi PCI bus\n");
755 asus
->hotplug_workqueue
=
756 create_singlethread_workqueue("hotplug_workqueue");
757 if (!asus
->hotplug_workqueue
)
758 goto error_workqueue
;
760 INIT_WORK(&asus
->hotplug_work
, asus_hotplug_work
);
762 asus
->hotplug_slot
= kzalloc(sizeof(struct hotplug_slot
), GFP_KERNEL
);
763 if (!asus
->hotplug_slot
)
766 asus
->hotplug_slot
->info
= kzalloc(sizeof(struct hotplug_slot_info
),
768 if (!asus
->hotplug_slot
->info
)
771 asus
->hotplug_slot
->private = asus
;
772 asus
->hotplug_slot
->release
= &asus_cleanup_pci_hotplug
;
773 asus
->hotplug_slot
->ops
= &asus_hotplug_slot_ops
;
774 asus_get_adapter_status(asus
->hotplug_slot
,
775 &asus
->hotplug_slot
->info
->adapter_status
);
777 ret
= pci_hp_register(asus
->hotplug_slot
, bus
, 0, "asus-wifi");
779 pr_err("Unable to register hotplug slot - %d\n", ret
);
786 kfree(asus
->hotplug_slot
->info
);
788 kfree(asus
->hotplug_slot
);
789 asus
->hotplug_slot
= NULL
;
791 destroy_workqueue(asus
->hotplug_workqueue
);
799 static int asus_rfkill_set(void *data
, bool blocked
)
801 struct asus_rfkill
*priv
= data
;
802 u32 ctrl_param
= !blocked
;
803 u32 dev_id
= priv
->dev_id
;
806 * If the user bit is set, BIOS can't set and record the wlan status,
807 * it will report the value read from id ASUS_WMI_DEVID_WLAN_LED
808 * while we query the wlan status through WMI(ASUS_WMI_DEVID_WLAN).
809 * So, we have to record wlan status in id ASUS_WMI_DEVID_WLAN_LED
810 * while setting the wlan status through WMI.
811 * This is also the behavior that windows app will do.
813 if ((dev_id
== ASUS_WMI_DEVID_WLAN
) &&
814 priv
->asus
->driver
->wlan_ctrl_by_user
)
815 dev_id
= ASUS_WMI_DEVID_WLAN_LED
;
817 return asus_wmi_set_devstate(dev_id
, ctrl_param
, NULL
);
820 static void asus_rfkill_query(struct rfkill
*rfkill
, void *data
)
822 struct asus_rfkill
*priv
= data
;
825 result
= asus_wmi_get_devstate_simple(priv
->asus
, priv
->dev_id
);
830 rfkill_set_sw_state(priv
->rfkill
, !result
);
833 static int asus_rfkill_wlan_set(void *data
, bool blocked
)
835 struct asus_rfkill
*priv
= data
;
836 struct asus_wmi
*asus
= priv
->asus
;
840 * This handler is enabled only if hotplug is enabled.
841 * In this case, the asus_wmi_set_devstate() will
842 * trigger a wmi notification and we need to wait
843 * this call to finish before being able to call
846 mutex_lock(&asus
->wmi_lock
);
847 ret
= asus_rfkill_set(data
, blocked
);
848 mutex_unlock(&asus
->wmi_lock
);
852 static const struct rfkill_ops asus_rfkill_wlan_ops
= {
853 .set_block
= asus_rfkill_wlan_set
,
854 .query
= asus_rfkill_query
,
857 static const struct rfkill_ops asus_rfkill_ops
= {
858 .set_block
= asus_rfkill_set
,
859 .query
= asus_rfkill_query
,
862 static int asus_new_rfkill(struct asus_wmi
*asus
,
863 struct asus_rfkill
*arfkill
,
864 const char *name
, enum rfkill_type type
, int dev_id
)
866 int result
= asus_wmi_get_devstate_simple(asus
, dev_id
);
867 struct rfkill
**rfkill
= &arfkill
->rfkill
;
872 arfkill
->dev_id
= dev_id
;
873 arfkill
->asus
= asus
;
875 if (dev_id
== ASUS_WMI_DEVID_WLAN
&&
876 asus
->driver
->quirks
->hotplug_wireless
)
877 *rfkill
= rfkill_alloc(name
, &asus
->platform_device
->dev
, type
,
878 &asus_rfkill_wlan_ops
, arfkill
);
880 *rfkill
= rfkill_alloc(name
, &asus
->platform_device
->dev
, type
,
881 &asus_rfkill_ops
, arfkill
);
886 if ((dev_id
== ASUS_WMI_DEVID_WLAN
) &&
887 (asus
->driver
->quirks
->wapf
== 4))
888 rfkill_set_led_trigger_name(*rfkill
, "asus-wlan");
890 rfkill_init_sw_state(*rfkill
, !result
);
891 result
= rfkill_register(*rfkill
);
893 rfkill_destroy(*rfkill
);
900 static void asus_wmi_rfkill_exit(struct asus_wmi
*asus
)
902 asus_unregister_rfkill_notifier(asus
, "\\_SB.PCI0.P0P5");
903 asus_unregister_rfkill_notifier(asus
, "\\_SB.PCI0.P0P6");
904 asus_unregister_rfkill_notifier(asus
, "\\_SB.PCI0.P0P7");
905 if (asus
->wlan
.rfkill
) {
906 rfkill_unregister(asus
->wlan
.rfkill
);
907 rfkill_destroy(asus
->wlan
.rfkill
);
908 asus
->wlan
.rfkill
= NULL
;
911 * Refresh pci hotplug in case the rfkill state was changed after
912 * asus_unregister_rfkill_notifier()
914 asus_rfkill_hotplug(asus
);
915 if (asus
->hotplug_slot
)
916 pci_hp_deregister(asus
->hotplug_slot
);
917 if (asus
->hotplug_workqueue
)
918 destroy_workqueue(asus
->hotplug_workqueue
);
920 if (asus
->bluetooth
.rfkill
) {
921 rfkill_unregister(asus
->bluetooth
.rfkill
);
922 rfkill_destroy(asus
->bluetooth
.rfkill
);
923 asus
->bluetooth
.rfkill
= NULL
;
925 if (asus
->wimax
.rfkill
) {
926 rfkill_unregister(asus
->wimax
.rfkill
);
927 rfkill_destroy(asus
->wimax
.rfkill
);
928 asus
->wimax
.rfkill
= NULL
;
930 if (asus
->wwan3g
.rfkill
) {
931 rfkill_unregister(asus
->wwan3g
.rfkill
);
932 rfkill_destroy(asus
->wwan3g
.rfkill
);
933 asus
->wwan3g
.rfkill
= NULL
;
935 if (asus
->gps
.rfkill
) {
936 rfkill_unregister(asus
->gps
.rfkill
);
937 rfkill_destroy(asus
->gps
.rfkill
);
938 asus
->gps
.rfkill
= NULL
;
940 if (asus
->uwb
.rfkill
) {
941 rfkill_unregister(asus
->uwb
.rfkill
);
942 rfkill_destroy(asus
->uwb
.rfkill
);
943 asus
->uwb
.rfkill
= NULL
;
947 static int asus_wmi_rfkill_init(struct asus_wmi
*asus
)
951 mutex_init(&asus
->hotplug_lock
);
952 mutex_init(&asus
->wmi_lock
);
954 result
= asus_new_rfkill(asus
, &asus
->wlan
, "asus-wlan",
955 RFKILL_TYPE_WLAN
, ASUS_WMI_DEVID_WLAN
);
957 if (result
&& result
!= -ENODEV
)
960 result
= asus_new_rfkill(asus
, &asus
->bluetooth
,
961 "asus-bluetooth", RFKILL_TYPE_BLUETOOTH
,
962 ASUS_WMI_DEVID_BLUETOOTH
);
964 if (result
&& result
!= -ENODEV
)
967 result
= asus_new_rfkill(asus
, &asus
->wimax
, "asus-wimax",
968 RFKILL_TYPE_WIMAX
, ASUS_WMI_DEVID_WIMAX
);
970 if (result
&& result
!= -ENODEV
)
973 result
= asus_new_rfkill(asus
, &asus
->wwan3g
, "asus-wwan3g",
974 RFKILL_TYPE_WWAN
, ASUS_WMI_DEVID_WWAN3G
);
976 if (result
&& result
!= -ENODEV
)
979 result
= asus_new_rfkill(asus
, &asus
->gps
, "asus-gps",
980 RFKILL_TYPE_GPS
, ASUS_WMI_DEVID_GPS
);
982 if (result
&& result
!= -ENODEV
)
985 result
= asus_new_rfkill(asus
, &asus
->uwb
, "asus-uwb",
986 RFKILL_TYPE_UWB
, ASUS_WMI_DEVID_UWB
);
988 if (result
&& result
!= -ENODEV
)
991 if (!asus
->driver
->quirks
->hotplug_wireless
)
994 result
= asus_setup_pci_hotplug(asus
);
996 * If we get -EBUSY then something else is handling the PCI hotplug -
997 * don't fail in this case
999 if (result
== -EBUSY
)
1002 asus_register_rfkill_notifier(asus
, "\\_SB.PCI0.P0P5");
1003 asus_register_rfkill_notifier(asus
, "\\_SB.PCI0.P0P6");
1004 asus_register_rfkill_notifier(asus
, "\\_SB.PCI0.P0P7");
1006 * Refresh pci hotplug in case the rfkill state was changed during
1009 asus_rfkill_hotplug(asus
);
1012 if (result
&& result
!= -ENODEV
)
1013 asus_wmi_rfkill_exit(asus
);
1015 if (result
== -ENODEV
)
1024 static ssize_t
asus_hwmon_pwm1(struct device
*dev
,
1025 struct device_attribute
*attr
,
1028 struct asus_wmi
*asus
= dev_get_drvdata(dev
);
1032 err
= asus_wmi_get_devstate(asus
, ASUS_WMI_DEVID_FAN_CTRL
, &value
);
1039 if (value
== 1) /* Low Speed */
1041 else if (value
== 2)
1043 else if (value
== 3)
1045 else if (value
!= 0) {
1046 pr_err("Unknown fan speed %#x\n", value
);
1050 return sprintf(buf
, "%d\n", value
);
1053 static ssize_t
asus_hwmon_temp1(struct device
*dev
,
1054 struct device_attribute
*attr
,
1057 struct asus_wmi
*asus
= dev_get_drvdata(dev
);
1061 err
= asus_wmi_get_devstate(asus
, ASUS_WMI_DEVID_THERMAL_CTRL
, &value
);
1066 value
= KELVIN_TO_CELSIUS((value
& 0xFFFF)) * 1000;
1068 return sprintf(buf
, "%d\n", value
);
1071 static DEVICE_ATTR(pwm1
, S_IRUGO
, asus_hwmon_pwm1
, NULL
);
1072 static DEVICE_ATTR(temp1_input
, S_IRUGO
, asus_hwmon_temp1
, NULL
);
1074 static struct attribute
*hwmon_attributes
[] = {
1075 &dev_attr_pwm1
.attr
,
1076 &dev_attr_temp1_input
.attr
,
1080 static umode_t
asus_hwmon_sysfs_is_visible(struct kobject
*kobj
,
1081 struct attribute
*attr
, int idx
)
1083 struct device
*dev
= container_of(kobj
, struct device
, kobj
);
1084 struct platform_device
*pdev
= to_platform_device(dev
->parent
);
1085 struct asus_wmi
*asus
= platform_get_drvdata(pdev
);
1088 u32 value
= ASUS_WMI_UNSUPPORTED_METHOD
;
1090 if (attr
== &dev_attr_pwm1
.attr
)
1091 dev_id
= ASUS_WMI_DEVID_FAN_CTRL
;
1092 else if (attr
== &dev_attr_temp1_input
.attr
)
1093 dev_id
= ASUS_WMI_DEVID_THERMAL_CTRL
;
1096 int err
= asus_wmi_get_devstate(asus
, dev_id
, &value
);
1099 return 0; /* can't return negative here */
1102 if (dev_id
== ASUS_WMI_DEVID_FAN_CTRL
) {
1104 * We need to find a better way, probably using sfun,
1106 * Currently we disable it if:
1107 * - ASUS_WMI_UNSUPPORTED_METHOD is returned
1108 * - reverved bits are non-zero
1109 * - sfun and presence bit are not set
1111 if (value
== ASUS_WMI_UNSUPPORTED_METHOD
|| value
& 0xFFF80000
1112 || (!asus
->sfun
&& !(value
& ASUS_WMI_DSTS_PRESENCE_BIT
)))
1114 } else if (dev_id
== ASUS_WMI_DEVID_THERMAL_CTRL
) {
1115 /* If value is zero, something is clearly wrong */
1120 return ok
? attr
->mode
: 0;
1123 static struct attribute_group hwmon_attribute_group
= {
1124 .is_visible
= asus_hwmon_sysfs_is_visible
,
1125 .attrs
= hwmon_attributes
1127 __ATTRIBUTE_GROUPS(hwmon_attribute
);
1129 static int asus_wmi_hwmon_init(struct asus_wmi
*asus
)
1131 struct device
*hwmon
;
1133 hwmon
= hwmon_device_register_with_groups(&asus
->platform_device
->dev
,
1135 hwmon_attribute_groups
);
1136 if (IS_ERR(hwmon
)) {
1137 pr_err("Could not register asus hwmon device\n");
1138 return PTR_ERR(hwmon
);
1146 static int read_backlight_power(struct asus_wmi
*asus
)
1149 if (asus
->driver
->quirks
->store_backlight_power
)
1150 ret
= !asus
->driver
->panel_power
;
1152 ret
= asus_wmi_get_devstate_simple(asus
,
1153 ASUS_WMI_DEVID_BACKLIGHT
);
1158 return ret
? FB_BLANK_UNBLANK
: FB_BLANK_POWERDOWN
;
1161 static int read_brightness_max(struct asus_wmi
*asus
)
1166 err
= asus_wmi_get_devstate(asus
, ASUS_WMI_DEVID_BRIGHTNESS
, &retval
);
1171 retval
= retval
& ASUS_WMI_DSTS_MAX_BRIGTH_MASK
;
1180 static int read_brightness(struct backlight_device
*bd
)
1182 struct asus_wmi
*asus
= bl_get_data(bd
);
1186 err
= asus_wmi_get_devstate(asus
, ASUS_WMI_DEVID_BRIGHTNESS
, &retval
);
1191 return retval
& ASUS_WMI_DSTS_BRIGHTNESS_MASK
;
1194 static u32
get_scalar_command(struct backlight_device
*bd
)
1196 struct asus_wmi
*asus
= bl_get_data(bd
);
1199 if ((asus
->driver
->brightness
< bd
->props
.brightness
) ||
1200 bd
->props
.brightness
== bd
->props
.max_brightness
)
1201 ctrl_param
= 0x00008001;
1202 else if ((asus
->driver
->brightness
> bd
->props
.brightness
) ||
1203 bd
->props
.brightness
== 0)
1204 ctrl_param
= 0x00008000;
1206 asus
->driver
->brightness
= bd
->props
.brightness
;
1211 static int update_bl_status(struct backlight_device
*bd
)
1213 struct asus_wmi
*asus
= bl_get_data(bd
);
1217 power
= read_backlight_power(asus
);
1218 if (power
!= -ENODEV
&& bd
->props
.power
!= power
) {
1219 ctrl_param
= !!(bd
->props
.power
== FB_BLANK_UNBLANK
);
1220 err
= asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT
,
1222 if (asus
->driver
->quirks
->store_backlight_power
)
1223 asus
->driver
->panel_power
= bd
->props
.power
;
1225 /* When using scalar brightness, updating the brightness
1226 * will mess with the backlight power */
1227 if (asus
->driver
->quirks
->scalar_panel_brightness
)
1231 if (asus
->driver
->quirks
->scalar_panel_brightness
)
1232 ctrl_param
= get_scalar_command(bd
);
1234 ctrl_param
= bd
->props
.brightness
;
1236 err
= asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS
,
1242 static const struct backlight_ops asus_wmi_bl_ops
= {
1243 .get_brightness
= read_brightness
,
1244 .update_status
= update_bl_status
,
1247 static int asus_wmi_backlight_notify(struct asus_wmi
*asus
, int code
)
1249 struct backlight_device
*bd
= asus
->backlight_device
;
1250 int old
= bd
->props
.brightness
;
1253 if (code
>= NOTIFY_BRNUP_MIN
&& code
<= NOTIFY_BRNUP_MAX
)
1254 new = code
- NOTIFY_BRNUP_MIN
+ 1;
1255 else if (code
>= NOTIFY_BRNDOWN_MIN
&& code
<= NOTIFY_BRNDOWN_MAX
)
1256 new = code
- NOTIFY_BRNDOWN_MIN
;
1258 bd
->props
.brightness
= new;
1259 backlight_update_status(bd
);
1260 backlight_force_update(bd
, BACKLIGHT_UPDATE_HOTKEY
);
1265 static int asus_wmi_backlight_init(struct asus_wmi
*asus
)
1267 struct backlight_device
*bd
;
1268 struct backlight_properties props
;
1272 max
= read_brightness_max(asus
);
1279 power
= read_backlight_power(asus
);
1281 if (power
== -ENODEV
)
1282 power
= FB_BLANK_UNBLANK
;
1286 memset(&props
, 0, sizeof(struct backlight_properties
));
1287 props
.type
= BACKLIGHT_PLATFORM
;
1288 props
.max_brightness
= max
;
1289 bd
= backlight_device_register(asus
->driver
->name
,
1290 &asus
->platform_device
->dev
, asus
,
1291 &asus_wmi_bl_ops
, &props
);
1293 pr_err("Could not register backlight device\n");
1297 asus
->backlight_device
= bd
;
1299 if (asus
->driver
->quirks
->store_backlight_power
)
1300 asus
->driver
->panel_power
= power
;
1302 bd
->props
.brightness
= read_brightness(bd
);
1303 bd
->props
.power
= power
;
1304 backlight_update_status(bd
);
1306 asus
->driver
->brightness
= bd
->props
.brightness
;
1311 static void asus_wmi_backlight_exit(struct asus_wmi
*asus
)
1313 if (asus
->backlight_device
)
1314 backlight_device_unregister(asus
->backlight_device
);
1316 asus
->backlight_device
= NULL
;
1319 static int is_display_toggle(int code
)
1321 /* display toggle keys */
1322 if ((code
>= 0x61 && code
<= 0x67) ||
1323 (code
>= 0x8c && code
<= 0x93) ||
1324 (code
>= 0xa0 && code
<= 0xa7) ||
1325 (code
>= 0xd0 && code
<= 0xd5))
1331 static void asus_wmi_notify(u32 value
, void *context
)
1333 struct asus_wmi
*asus
= context
;
1334 struct acpi_buffer response
= { ACPI_ALLOCATE_BUFFER
, NULL
};
1335 union acpi_object
*obj
;
1339 unsigned int key_value
= 1;
1340 bool autorelease
= 1;
1342 status
= wmi_get_event_data(value
, &response
);
1343 if (status
!= AE_OK
) {
1344 pr_err("bad event status 0x%x\n", status
);
1348 obj
= (union acpi_object
*)response
.pointer
;
1350 if (!obj
|| obj
->type
!= ACPI_TYPE_INTEGER
)
1353 code
= obj
->integer
.value
;
1356 if (asus
->driver
->key_filter
) {
1357 asus
->driver
->key_filter(asus
->driver
, &code
, &key_value
,
1359 if (code
== ASUS_WMI_KEY_IGNORE
)
1363 if (code
>= NOTIFY_BRNUP_MIN
&& code
<= NOTIFY_BRNUP_MAX
)
1364 code
= ASUS_WMI_BRN_UP
;
1365 else if (code
>= NOTIFY_BRNDOWN_MIN
&&
1366 code
<= NOTIFY_BRNDOWN_MAX
)
1367 code
= ASUS_WMI_BRN_DOWN
;
1369 if (code
== ASUS_WMI_BRN_DOWN
|| code
== ASUS_WMI_BRN_UP
) {
1370 if (!acpi_video_backlight_support()) {
1371 asus_wmi_backlight_notify(asus
, orig_code
);
1376 if (is_display_toggle(code
) &&
1377 asus
->driver
->quirks
->no_display_toggle
)
1380 if (!sparse_keymap_report_event(asus
->inputdev
, code
,
1381 key_value
, autorelease
))
1382 pr_info("Unknown key %x pressed\n", code
);
1391 static int parse_arg(const char *buf
, unsigned long count
, int *val
)
1395 if (sscanf(buf
, "%i", val
) != 1)
1400 static ssize_t
store_sys_wmi(struct asus_wmi
*asus
, int devid
,
1401 const char *buf
, size_t count
)
1406 value
= asus_wmi_get_devstate_simple(asus
, devid
);
1407 if (value
== -ENODEV
) /* Check device presence */
1410 rv
= parse_arg(buf
, count
, &value
);
1411 err
= asus_wmi_set_devstate(devid
, value
, &retval
);
1419 static ssize_t
show_sys_wmi(struct asus_wmi
*asus
, int devid
, char *buf
)
1421 int value
= asus_wmi_get_devstate_simple(asus
, devid
);
1426 return sprintf(buf
, "%d\n", value
);
1429 #define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \
1430 static ssize_t show_##_name(struct device *dev, \
1431 struct device_attribute *attr, \
1434 struct asus_wmi *asus = dev_get_drvdata(dev); \
1436 return show_sys_wmi(asus, _cm, buf); \
1438 static ssize_t store_##_name(struct device *dev, \
1439 struct device_attribute *attr, \
1440 const char *buf, size_t count) \
1442 struct asus_wmi *asus = dev_get_drvdata(dev); \
1444 return store_sys_wmi(asus, _cm, buf, count); \
1446 static struct device_attribute dev_attr_##_name = { \
1448 .name = __stringify(_name), \
1450 .show = show_##_name, \
1451 .store = store_##_name, \
1454 ASUS_WMI_CREATE_DEVICE_ATTR(touchpad
, 0644, ASUS_WMI_DEVID_TOUCHPAD
);
1455 ASUS_WMI_CREATE_DEVICE_ATTR(camera
, 0644, ASUS_WMI_DEVID_CAMERA
);
1456 ASUS_WMI_CREATE_DEVICE_ATTR(cardr
, 0644, ASUS_WMI_DEVID_CARDREADER
);
1457 ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume
, 0644, ASUS_WMI_DEVID_LID_RESUME
);
1459 static ssize_t
store_cpufv(struct device
*dev
, struct device_attribute
*attr
,
1460 const char *buf
, size_t count
)
1464 if (!count
|| sscanf(buf
, "%i", &value
) != 1)
1466 if (value
< 0 || value
> 2)
1469 rv
= asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS
, value
, 0, NULL
);
1476 static DEVICE_ATTR(cpufv
, S_IRUGO
| S_IWUSR
, NULL
, store_cpufv
);
1478 static struct attribute
*platform_attributes
[] = {
1479 &dev_attr_cpufv
.attr
,
1480 &dev_attr_camera
.attr
,
1481 &dev_attr_cardr
.attr
,
1482 &dev_attr_touchpad
.attr
,
1483 &dev_attr_lid_resume
.attr
,
1487 static umode_t
asus_sysfs_is_visible(struct kobject
*kobj
,
1488 struct attribute
*attr
, int idx
)
1490 struct device
*dev
= container_of(kobj
, struct device
, kobj
);
1491 struct platform_device
*pdev
= to_platform_device(dev
);
1492 struct asus_wmi
*asus
= platform_get_drvdata(pdev
);
1496 if (attr
== &dev_attr_camera
.attr
)
1497 devid
= ASUS_WMI_DEVID_CAMERA
;
1498 else if (attr
== &dev_attr_cardr
.attr
)
1499 devid
= ASUS_WMI_DEVID_CARDREADER
;
1500 else if (attr
== &dev_attr_touchpad
.attr
)
1501 devid
= ASUS_WMI_DEVID_TOUCHPAD
;
1502 else if (attr
== &dev_attr_lid_resume
.attr
)
1503 devid
= ASUS_WMI_DEVID_LID_RESUME
;
1506 ok
= !(asus_wmi_get_devstate_simple(asus
, devid
) < 0);
1508 return ok
? attr
->mode
: 0;
1511 static struct attribute_group platform_attribute_group
= {
1512 .is_visible
= asus_sysfs_is_visible
,
1513 .attrs
= platform_attributes
1516 static void asus_wmi_sysfs_exit(struct platform_device
*device
)
1518 sysfs_remove_group(&device
->dev
.kobj
, &platform_attribute_group
);
1521 static int asus_wmi_sysfs_init(struct platform_device
*device
)
1523 return sysfs_create_group(&device
->dev
.kobj
, &platform_attribute_group
);
1529 static int asus_wmi_platform_init(struct asus_wmi
*asus
)
1533 /* INIT enable hotkeys on some models */
1534 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT
, 0, 0, &rv
))
1535 pr_info("Initialization: %#x\n", rv
);
1537 /* We don't know yet what to do with this version... */
1538 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC
, 0, 0x9, &rv
)) {
1539 pr_info("BIOS WMI version: %d.%d\n", rv
>> 16, rv
& 0xFF);
1544 * The SFUN method probably allows the original driver to get the list
1545 * of features supported by a given model. For now, 0x0100 or 0x0800
1546 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
1547 * The significance of others is yet to be found.
1549 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN
, 0, 0, &rv
)) {
1550 pr_info("SFUN value: %#x\n", rv
);
1555 * Eee PC and Notebooks seems to have different method_id for DSTS,
1556 * but it may also be related to the BIOS's SPEC.
1557 * Note, on most Eeepc, there is no way to check if a method exist
1558 * or note, while on notebooks, they returns 0xFFFFFFFE on failure,
1559 * but once again, SPEC may probably be used for that kind of things.
1561 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS
, 0, 0, NULL
))
1562 asus
->dsts_id
= ASUS_WMI_METHODID_DSTS
;
1564 asus
->dsts_id
= ASUS_WMI_METHODID_DSTS2
;
1566 /* CWAP allow to define the behavior of the Fn+F2 key,
1567 * this method doesn't seems to be present on Eee PCs */
1568 if (asus
->driver
->quirks
->wapf
>= 0)
1569 asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP
,
1570 asus
->driver
->quirks
->wapf
, NULL
);
1572 return asus_wmi_sysfs_init(asus
->platform_device
);
1575 static void asus_wmi_platform_exit(struct asus_wmi
*asus
)
1577 asus_wmi_sysfs_exit(asus
->platform_device
);
1583 struct asus_wmi_debugfs_node
{
1584 struct asus_wmi
*asus
;
1586 int (*show
) (struct seq_file
*m
, void *data
);
1589 static int show_dsts(struct seq_file
*m
, void *data
)
1591 struct asus_wmi
*asus
= m
->private;
1595 err
= asus_wmi_get_devstate(asus
, asus
->debug
.dev_id
, &retval
);
1600 seq_printf(m
, "DSTS(%#x) = %#x\n", asus
->debug
.dev_id
, retval
);
1605 static int show_devs(struct seq_file
*m
, void *data
)
1607 struct asus_wmi
*asus
= m
->private;
1611 err
= asus_wmi_set_devstate(asus
->debug
.dev_id
, asus
->debug
.ctrl_param
,
1617 seq_printf(m
, "DEVS(%#x, %#x) = %#x\n", asus
->debug
.dev_id
,
1618 asus
->debug
.ctrl_param
, retval
);
1623 static int show_call(struct seq_file
*m
, void *data
)
1625 struct asus_wmi
*asus
= m
->private;
1626 struct bios_args args
= {
1627 .arg0
= asus
->debug
.dev_id
,
1628 .arg1
= asus
->debug
.ctrl_param
,
1630 struct acpi_buffer input
= { (acpi_size
) sizeof(args
), &args
};
1631 struct acpi_buffer output
= { ACPI_ALLOCATE_BUFFER
, NULL
};
1632 union acpi_object
*obj
;
1635 status
= wmi_evaluate_method(ASUS_WMI_MGMT_GUID
,
1636 1, asus
->debug
.method_id
,
1639 if (ACPI_FAILURE(status
))
1642 obj
= (union acpi_object
*)output
.pointer
;
1643 if (obj
&& obj
->type
== ACPI_TYPE_INTEGER
)
1644 seq_printf(m
, "%#x(%#x, %#x) = %#x\n", asus
->debug
.method_id
,
1645 asus
->debug
.dev_id
, asus
->debug
.ctrl_param
,
1646 (u32
) obj
->integer
.value
);
1648 seq_printf(m
, "%#x(%#x, %#x) = t:%d\n", asus
->debug
.method_id
,
1649 asus
->debug
.dev_id
, asus
->debug
.ctrl_param
,
1650 obj
? obj
->type
: -1);
1657 static struct asus_wmi_debugfs_node asus_wmi_debug_files
[] = {
1658 {NULL
, "devs", show_devs
},
1659 {NULL
, "dsts", show_dsts
},
1660 {NULL
, "call", show_call
},
1663 static int asus_wmi_debugfs_open(struct inode
*inode
, struct file
*file
)
1665 struct asus_wmi_debugfs_node
*node
= inode
->i_private
;
1667 return single_open(file
, node
->show
, node
->asus
);
1670 static const struct file_operations asus_wmi_debugfs_io_ops
= {
1671 .owner
= THIS_MODULE
,
1672 .open
= asus_wmi_debugfs_open
,
1674 .llseek
= seq_lseek
,
1675 .release
= single_release
,
1678 static void asus_wmi_debugfs_exit(struct asus_wmi
*asus
)
1680 debugfs_remove_recursive(asus
->debug
.root
);
1683 static int asus_wmi_debugfs_init(struct asus_wmi
*asus
)
1685 struct dentry
*dent
;
1688 asus
->debug
.root
= debugfs_create_dir(asus
->driver
->name
, NULL
);
1689 if (!asus
->debug
.root
) {
1690 pr_err("failed to create debugfs directory\n");
1694 dent
= debugfs_create_x32("method_id", S_IRUGO
| S_IWUSR
,
1695 asus
->debug
.root
, &asus
->debug
.method_id
);
1699 dent
= debugfs_create_x32("dev_id", S_IRUGO
| S_IWUSR
,
1700 asus
->debug
.root
, &asus
->debug
.dev_id
);
1704 dent
= debugfs_create_x32("ctrl_param", S_IRUGO
| S_IWUSR
,
1705 asus
->debug
.root
, &asus
->debug
.ctrl_param
);
1709 for (i
= 0; i
< ARRAY_SIZE(asus_wmi_debug_files
); i
++) {
1710 struct asus_wmi_debugfs_node
*node
= &asus_wmi_debug_files
[i
];
1713 dent
= debugfs_create_file(node
->name
, S_IFREG
| S_IRUGO
,
1714 asus
->debug
.root
, node
,
1715 &asus_wmi_debugfs_io_ops
);
1717 pr_err("failed to create debug file: %s\n", node
->name
);
1725 asus_wmi_debugfs_exit(asus
);
1732 static int asus_wmi_add(struct platform_device
*pdev
)
1734 struct platform_driver
*pdrv
= to_platform_driver(pdev
->dev
.driver
);
1735 struct asus_wmi_driver
*wdrv
= to_asus_wmi_driver(pdrv
);
1736 struct asus_wmi
*asus
;
1741 asus
= kzalloc(sizeof(struct asus_wmi
), GFP_KERNEL
);
1745 asus
->driver
= wdrv
;
1746 asus
->platform_device
= pdev
;
1747 wdrv
->platform_device
= pdev
;
1748 platform_set_drvdata(asus
->platform_device
, asus
);
1750 if (wdrv
->detect_quirks
)
1751 wdrv
->detect_quirks(asus
->driver
);
1753 err
= asus_wmi_platform_init(asus
);
1757 err
= asus_wmi_input_init(asus
);
1761 err
= asus_wmi_hwmon_init(asus
);
1765 err
= asus_wmi_led_init(asus
);
1769 err
= asus_wmi_rfkill_init(asus
);
1773 if (asus
->driver
->quirks
->wmi_backlight_power
)
1774 acpi_video_dmi_promote_vendor();
1775 if (!acpi_video_backlight_support()) {
1776 pr_info("Disabling ACPI video driver\n");
1777 acpi_video_unregister();
1778 err
= asus_wmi_backlight_init(asus
);
1779 if (err
&& err
!= -ENODEV
)
1780 goto fail_backlight
;
1782 pr_info("Backlight controlled by ACPI video driver\n");
1784 status
= wmi_install_notify_handler(asus
->driver
->event_guid
,
1785 asus_wmi_notify
, asus
);
1786 if (ACPI_FAILURE(status
)) {
1787 pr_err("Unable to register notify handler - %d\n", status
);
1789 goto fail_wmi_handler
;
1792 err
= asus_wmi_debugfs_init(asus
);
1796 asus_wmi_get_devstate(asus
, ASUS_WMI_DEVID_WLAN
, &result
);
1797 if (result
& (ASUS_WMI_DSTS_PRESENCE_BIT
| ASUS_WMI_DSTS_USER_BIT
))
1798 asus
->driver
->wlan_ctrl_by_user
= 1;
1803 wmi_remove_notify_handler(asus
->driver
->event_guid
);
1805 asus_wmi_backlight_exit(asus
);
1807 asus_wmi_rfkill_exit(asus
);
1809 asus_wmi_led_exit(asus
);
1812 asus_wmi_input_exit(asus
);
1814 asus_wmi_platform_exit(asus
);
1820 static int asus_wmi_remove(struct platform_device
*device
)
1822 struct asus_wmi
*asus
;
1824 asus
= platform_get_drvdata(device
);
1825 wmi_remove_notify_handler(asus
->driver
->event_guid
);
1826 asus_wmi_backlight_exit(asus
);
1827 asus_wmi_input_exit(asus
);
1828 asus_wmi_led_exit(asus
);
1829 asus_wmi_rfkill_exit(asus
);
1830 asus_wmi_debugfs_exit(asus
);
1831 asus_wmi_platform_exit(asus
);
1838 * Platform driver - hibernate/resume callbacks
1840 static int asus_hotk_thaw(struct device
*device
)
1842 struct asus_wmi
*asus
= dev_get_drvdata(device
);
1844 if (asus
->wlan
.rfkill
) {
1848 * Work around bios bug - acpi _PTS turns off the wireless led
1849 * during suspend. Normally it restores it on resume, but
1850 * we should kick it ourselves in case hibernation is aborted.
1852 wlan
= asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_WLAN
);
1853 asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN
, wlan
, NULL
);
1859 static int asus_hotk_restore(struct device
*device
)
1861 struct asus_wmi
*asus
= dev_get_drvdata(device
);
1864 /* Refresh both wlan rfkill state and pci hotplug */
1865 if (asus
->wlan
.rfkill
)
1866 asus_rfkill_hotplug(asus
);
1868 if (asus
->bluetooth
.rfkill
) {
1869 bl
= !asus_wmi_get_devstate_simple(asus
,
1870 ASUS_WMI_DEVID_BLUETOOTH
);
1871 rfkill_set_sw_state(asus
->bluetooth
.rfkill
, bl
);
1873 if (asus
->wimax
.rfkill
) {
1874 bl
= !asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_WIMAX
);
1875 rfkill_set_sw_state(asus
->wimax
.rfkill
, bl
);
1877 if (asus
->wwan3g
.rfkill
) {
1878 bl
= !asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_WWAN3G
);
1879 rfkill_set_sw_state(asus
->wwan3g
.rfkill
, bl
);
1881 if (asus
->gps
.rfkill
) {
1882 bl
= !asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_GPS
);
1883 rfkill_set_sw_state(asus
->gps
.rfkill
, bl
);
1885 if (asus
->uwb
.rfkill
) {
1886 bl
= !asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_UWB
);
1887 rfkill_set_sw_state(asus
->uwb
.rfkill
, bl
);
1893 static const struct dev_pm_ops asus_pm_ops
= {
1894 .thaw
= asus_hotk_thaw
,
1895 .restore
= asus_hotk_restore
,
1898 static int asus_wmi_probe(struct platform_device
*pdev
)
1900 struct platform_driver
*pdrv
= to_platform_driver(pdev
->dev
.driver
);
1901 struct asus_wmi_driver
*wdrv
= to_asus_wmi_driver(pdrv
);
1904 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID
)) {
1905 pr_warn("Management GUID not found\n");
1909 if (wdrv
->event_guid
&& !wmi_has_guid(wdrv
->event_guid
)) {
1910 pr_warn("Event GUID not found\n");
1915 ret
= wdrv
->probe(pdev
);
1920 return asus_wmi_add(pdev
);
1925 int __init_or_module
asus_wmi_register_driver(struct asus_wmi_driver
*driver
)
1927 struct platform_driver
*platform_driver
;
1928 struct platform_device
*platform_device
;
1933 platform_driver
= &driver
->platform_driver
;
1934 platform_driver
->remove
= asus_wmi_remove
;
1935 platform_driver
->driver
.owner
= driver
->owner
;
1936 platform_driver
->driver
.name
= driver
->name
;
1937 platform_driver
->driver
.pm
= &asus_pm_ops
;
1939 platform_device
= platform_create_bundle(platform_driver
,
1942 if (IS_ERR(platform_device
))
1943 return PTR_ERR(platform_device
);
1948 EXPORT_SYMBOL_GPL(asus_wmi_register_driver
);
1950 void asus_wmi_unregister_driver(struct asus_wmi_driver
*driver
)
1952 platform_device_unregister(driver
->platform_device
);
1953 platform_driver_unregister(&driver
->platform_driver
);
1956 EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver
);
1958 static int __init
asus_wmi_init(void)
1960 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID
)) {
1961 pr_info("Asus Management GUID not found\n");
1965 pr_info("ASUS WMI generic driver loaded\n");
1969 static void __exit
asus_wmi_exit(void)
1971 pr_info("ASUS WMI generic driver unloaded\n");
1974 module_init(asus_wmi_init
);
1975 module_exit(asus_wmi_exit
);