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\n", value
);
1052 return sprintf(buf
, "%d\n", value
);
1055 static ssize_t
asus_hwmon_temp1(struct device
*dev
,
1056 struct device_attribute
*attr
,
1059 struct asus_wmi
*asus
= dev_get_drvdata(dev
);
1063 err
= asus_wmi_get_devstate(asus
, ASUS_WMI_DEVID_THERMAL_CTRL
, &value
);
1068 value
= KELVIN_TO_CELSIUS((value
& 0xFFFF)) * 1000;
1070 return sprintf(buf
, "%d\n", value
);
1073 static 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 asus_wmi_notify(u32 value
, void *context
)
1358 struct asus_wmi
*asus
= context
;
1359 struct acpi_buffer response
= { ACPI_ALLOCATE_BUFFER
, NULL
};
1360 union acpi_object
*obj
;
1364 unsigned int key_value
= 1;
1365 bool autorelease
= 1;
1367 status
= wmi_get_event_data(value
, &response
);
1368 if (status
!= AE_OK
) {
1369 pr_err("bad event status 0x%x\n", status
);
1373 obj
= (union acpi_object
*)response
.pointer
;
1375 if (!obj
|| obj
->type
!= ACPI_TYPE_INTEGER
)
1378 code
= obj
->integer
.value
;
1381 if (asus
->driver
->key_filter
) {
1382 asus
->driver
->key_filter(asus
->driver
, &code
, &key_value
,
1384 if (code
== ASUS_WMI_KEY_IGNORE
)
1388 if (code
>= NOTIFY_BRNUP_MIN
&& code
<= NOTIFY_BRNUP_MAX
)
1389 code
= ASUS_WMI_BRN_UP
;
1390 else if (code
>= NOTIFY_BRNDOWN_MIN
&&
1391 code
<= NOTIFY_BRNDOWN_MAX
)
1392 code
= ASUS_WMI_BRN_DOWN
;
1394 if (code
== ASUS_WMI_BRN_DOWN
|| code
== ASUS_WMI_BRN_UP
) {
1395 if (!acpi_video_backlight_support()) {
1396 asus_wmi_backlight_notify(asus
, orig_code
);
1401 if (is_display_toggle(code
) &&
1402 asus
->driver
->quirks
->no_display_toggle
)
1405 if (!sparse_keymap_report_event(asus
->inputdev
, code
,
1406 key_value
, autorelease
))
1407 pr_info("Unknown key %x pressed\n", code
);
1416 static int parse_arg(const char *buf
, unsigned long count
, int *val
)
1420 if (sscanf(buf
, "%i", val
) != 1)
1425 static ssize_t
store_sys_wmi(struct asus_wmi
*asus
, int devid
,
1426 const char *buf
, size_t count
)
1431 value
= asus_wmi_get_devstate_simple(asus
, devid
);
1432 if (value
== -ENODEV
) /* Check device presence */
1435 rv
= parse_arg(buf
, count
, &value
);
1436 err
= asus_wmi_set_devstate(devid
, value
, &retval
);
1444 static ssize_t
show_sys_wmi(struct asus_wmi
*asus
, int devid
, char *buf
)
1446 int value
= asus_wmi_get_devstate_simple(asus
, devid
);
1451 return sprintf(buf
, "%d\n", value
);
1454 #define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \
1455 static ssize_t show_##_name(struct device *dev, \
1456 struct device_attribute *attr, \
1459 struct asus_wmi *asus = dev_get_drvdata(dev); \
1461 return show_sys_wmi(asus, _cm, buf); \
1463 static ssize_t store_##_name(struct device *dev, \
1464 struct device_attribute *attr, \
1465 const char *buf, size_t count) \
1467 struct asus_wmi *asus = dev_get_drvdata(dev); \
1469 return store_sys_wmi(asus, _cm, buf, count); \
1471 static struct device_attribute dev_attr_##_name = { \
1473 .name = __stringify(_name), \
1475 .show = show_##_name, \
1476 .store = store_##_name, \
1479 ASUS_WMI_CREATE_DEVICE_ATTR(touchpad
, 0644, ASUS_WMI_DEVID_TOUCHPAD
);
1480 ASUS_WMI_CREATE_DEVICE_ATTR(camera
, 0644, ASUS_WMI_DEVID_CAMERA
);
1481 ASUS_WMI_CREATE_DEVICE_ATTR(cardr
, 0644, ASUS_WMI_DEVID_CARDREADER
);
1482 ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume
, 0644, ASUS_WMI_DEVID_LID_RESUME
);
1484 static ssize_t
store_cpufv(struct device
*dev
, struct device_attribute
*attr
,
1485 const char *buf
, size_t count
)
1489 if (!count
|| sscanf(buf
, "%i", &value
) != 1)
1491 if (value
< 0 || value
> 2)
1494 rv
= asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS
, value
, 0, NULL
);
1501 static DEVICE_ATTR(cpufv
, S_IRUGO
| S_IWUSR
, NULL
, store_cpufv
);
1503 static struct attribute
*platform_attributes
[] = {
1504 &dev_attr_cpufv
.attr
,
1505 &dev_attr_camera
.attr
,
1506 &dev_attr_cardr
.attr
,
1507 &dev_attr_touchpad
.attr
,
1508 &dev_attr_lid_resume
.attr
,
1512 static umode_t
asus_sysfs_is_visible(struct kobject
*kobj
,
1513 struct attribute
*attr
, int idx
)
1515 struct device
*dev
= container_of(kobj
, struct device
, kobj
);
1516 struct platform_device
*pdev
= to_platform_device(dev
);
1517 struct asus_wmi
*asus
= platform_get_drvdata(pdev
);
1521 if (attr
== &dev_attr_camera
.attr
)
1522 devid
= ASUS_WMI_DEVID_CAMERA
;
1523 else if (attr
== &dev_attr_cardr
.attr
)
1524 devid
= ASUS_WMI_DEVID_CARDREADER
;
1525 else if (attr
== &dev_attr_touchpad
.attr
)
1526 devid
= ASUS_WMI_DEVID_TOUCHPAD
;
1527 else if (attr
== &dev_attr_lid_resume
.attr
)
1528 devid
= ASUS_WMI_DEVID_LID_RESUME
;
1531 ok
= !(asus_wmi_get_devstate_simple(asus
, devid
) < 0);
1533 return ok
? attr
->mode
: 0;
1536 static struct attribute_group platform_attribute_group
= {
1537 .is_visible
= asus_sysfs_is_visible
,
1538 .attrs
= platform_attributes
1541 static void asus_wmi_sysfs_exit(struct platform_device
*device
)
1543 sysfs_remove_group(&device
->dev
.kobj
, &platform_attribute_group
);
1546 static int asus_wmi_sysfs_init(struct platform_device
*device
)
1548 return sysfs_create_group(&device
->dev
.kobj
, &platform_attribute_group
);
1554 static int asus_wmi_platform_init(struct asus_wmi
*asus
)
1558 /* INIT enable hotkeys on some models */
1559 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT
, 0, 0, &rv
))
1560 pr_info("Initialization: %#x\n", rv
);
1562 /* We don't know yet what to do with this version... */
1563 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC
, 0, 0x9, &rv
)) {
1564 pr_info("BIOS WMI version: %d.%d\n", rv
>> 16, rv
& 0xFF);
1569 * The SFUN method probably allows the original driver to get the list
1570 * of features supported by a given model. For now, 0x0100 or 0x0800
1571 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
1572 * The significance of others is yet to be found.
1574 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN
, 0, 0, &rv
)) {
1575 pr_info("SFUN value: %#x\n", rv
);
1580 * Eee PC and Notebooks seems to have different method_id for DSTS,
1581 * but it may also be related to the BIOS's SPEC.
1582 * Note, on most Eeepc, there is no way to check if a method exist
1583 * or note, while on notebooks, they returns 0xFFFFFFFE on failure,
1584 * but once again, SPEC may probably be used for that kind of things.
1586 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS
, 0, 0, NULL
))
1587 asus
->dsts_id
= ASUS_WMI_METHODID_DSTS
;
1589 asus
->dsts_id
= ASUS_WMI_METHODID_DSTS2
;
1591 /* CWAP allow to define the behavior of the Fn+F2 key,
1592 * this method doesn't seems to be present on Eee PCs */
1593 if (asus
->driver
->quirks
->wapf
>= 0)
1594 asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP
,
1595 asus
->driver
->quirks
->wapf
, NULL
);
1597 return asus_wmi_sysfs_init(asus
->platform_device
);
1600 static void asus_wmi_platform_exit(struct asus_wmi
*asus
)
1602 asus_wmi_sysfs_exit(asus
->platform_device
);
1608 struct asus_wmi_debugfs_node
{
1609 struct asus_wmi
*asus
;
1611 int (*show
) (struct seq_file
*m
, void *data
);
1614 static int show_dsts(struct seq_file
*m
, void *data
)
1616 struct asus_wmi
*asus
= m
->private;
1620 err
= asus_wmi_get_devstate(asus
, asus
->debug
.dev_id
, &retval
);
1625 seq_printf(m
, "DSTS(%#x) = %#x\n", asus
->debug
.dev_id
, retval
);
1630 static int show_devs(struct seq_file
*m
, void *data
)
1632 struct asus_wmi
*asus
= m
->private;
1636 err
= asus_wmi_set_devstate(asus
->debug
.dev_id
, asus
->debug
.ctrl_param
,
1642 seq_printf(m
, "DEVS(%#x, %#x) = %#x\n", asus
->debug
.dev_id
,
1643 asus
->debug
.ctrl_param
, retval
);
1648 static int show_call(struct seq_file
*m
, void *data
)
1650 struct asus_wmi
*asus
= m
->private;
1651 struct bios_args args
= {
1652 .arg0
= asus
->debug
.dev_id
,
1653 .arg1
= asus
->debug
.ctrl_param
,
1655 struct acpi_buffer input
= { (acpi_size
) sizeof(args
), &args
};
1656 struct acpi_buffer output
= { ACPI_ALLOCATE_BUFFER
, NULL
};
1657 union acpi_object
*obj
;
1660 status
= wmi_evaluate_method(ASUS_WMI_MGMT_GUID
,
1661 1, asus
->debug
.method_id
,
1664 if (ACPI_FAILURE(status
))
1667 obj
= (union acpi_object
*)output
.pointer
;
1668 if (obj
&& obj
->type
== ACPI_TYPE_INTEGER
)
1669 seq_printf(m
, "%#x(%#x, %#x) = %#x\n", asus
->debug
.method_id
,
1670 asus
->debug
.dev_id
, asus
->debug
.ctrl_param
,
1671 (u32
) obj
->integer
.value
);
1673 seq_printf(m
, "%#x(%#x, %#x) = t:%d\n", asus
->debug
.method_id
,
1674 asus
->debug
.dev_id
, asus
->debug
.ctrl_param
,
1675 obj
? obj
->type
: -1);
1682 static struct asus_wmi_debugfs_node asus_wmi_debug_files
[] = {
1683 {NULL
, "devs", show_devs
},
1684 {NULL
, "dsts", show_dsts
},
1685 {NULL
, "call", show_call
},
1688 static int asus_wmi_debugfs_open(struct inode
*inode
, struct file
*file
)
1690 struct asus_wmi_debugfs_node
*node
= inode
->i_private
;
1692 return single_open(file
, node
->show
, node
->asus
);
1695 static const struct file_operations asus_wmi_debugfs_io_ops
= {
1696 .owner
= THIS_MODULE
,
1697 .open
= asus_wmi_debugfs_open
,
1699 .llseek
= seq_lseek
,
1700 .release
= single_release
,
1703 static void asus_wmi_debugfs_exit(struct asus_wmi
*asus
)
1705 debugfs_remove_recursive(asus
->debug
.root
);
1708 static int asus_wmi_debugfs_init(struct asus_wmi
*asus
)
1710 struct dentry
*dent
;
1713 asus
->debug
.root
= debugfs_create_dir(asus
->driver
->name
, NULL
);
1714 if (!asus
->debug
.root
) {
1715 pr_err("failed to create debugfs directory\n");
1719 dent
= debugfs_create_x32("method_id", S_IRUGO
| S_IWUSR
,
1720 asus
->debug
.root
, &asus
->debug
.method_id
);
1724 dent
= debugfs_create_x32("dev_id", S_IRUGO
| S_IWUSR
,
1725 asus
->debug
.root
, &asus
->debug
.dev_id
);
1729 dent
= debugfs_create_x32("ctrl_param", S_IRUGO
| S_IWUSR
,
1730 asus
->debug
.root
, &asus
->debug
.ctrl_param
);
1734 for (i
= 0; i
< ARRAY_SIZE(asus_wmi_debug_files
); i
++) {
1735 struct asus_wmi_debugfs_node
*node
= &asus_wmi_debug_files
[i
];
1738 dent
= debugfs_create_file(node
->name
, S_IFREG
| S_IRUGO
,
1739 asus
->debug
.root
, node
,
1740 &asus_wmi_debugfs_io_ops
);
1742 pr_err("failed to create debug file: %s\n", node
->name
);
1750 asus_wmi_debugfs_exit(asus
);
1757 static int asus_wmi_add(struct platform_device
*pdev
)
1759 struct platform_driver
*pdrv
= to_platform_driver(pdev
->dev
.driver
);
1760 struct asus_wmi_driver
*wdrv
= to_asus_wmi_driver(pdrv
);
1761 struct asus_wmi
*asus
;
1766 asus
= kzalloc(sizeof(struct asus_wmi
), GFP_KERNEL
);
1770 asus
->driver
= wdrv
;
1771 asus
->platform_device
= pdev
;
1772 wdrv
->platform_device
= pdev
;
1773 platform_set_drvdata(asus
->platform_device
, asus
);
1775 if (wdrv
->detect_quirks
)
1776 wdrv
->detect_quirks(asus
->driver
);
1778 err
= asus_wmi_platform_init(asus
);
1782 err
= asus_wmi_input_init(asus
);
1786 err
= asus_wmi_hwmon_init(asus
);
1790 err
= asus_wmi_led_init(asus
);
1794 err
= asus_wmi_rfkill_init(asus
);
1798 if (asus
->driver
->quirks
->wmi_backlight_power
)
1799 acpi_video_dmi_promote_vendor();
1800 if (!acpi_video_backlight_support()) {
1801 pr_info("Disabling ACPI video driver\n");
1802 acpi_video_unregister();
1803 err
= asus_wmi_backlight_init(asus
);
1804 if (err
&& err
!= -ENODEV
)
1805 goto fail_backlight
;
1807 pr_info("Backlight controlled by ACPI video driver\n");
1809 status
= wmi_install_notify_handler(asus
->driver
->event_guid
,
1810 asus_wmi_notify
, asus
);
1811 if (ACPI_FAILURE(status
)) {
1812 pr_err("Unable to register notify handler - %d\n", status
);
1814 goto fail_wmi_handler
;
1817 err
= asus_wmi_debugfs_init(asus
);
1821 asus_wmi_get_devstate(asus
, ASUS_WMI_DEVID_WLAN
, &result
);
1822 if (result
& (ASUS_WMI_DSTS_PRESENCE_BIT
| ASUS_WMI_DSTS_USER_BIT
))
1823 asus
->driver
->wlan_ctrl_by_user
= 1;
1828 wmi_remove_notify_handler(asus
->driver
->event_guid
);
1830 asus_wmi_backlight_exit(asus
);
1832 asus_wmi_rfkill_exit(asus
);
1834 asus_wmi_led_exit(asus
);
1836 asus_wmi_hwmon_exit(asus
);
1838 asus_wmi_input_exit(asus
);
1840 asus_wmi_platform_exit(asus
);
1846 static int asus_wmi_remove(struct platform_device
*device
)
1848 struct asus_wmi
*asus
;
1850 asus
= platform_get_drvdata(device
);
1851 wmi_remove_notify_handler(asus
->driver
->event_guid
);
1852 asus_wmi_backlight_exit(asus
);
1853 asus_wmi_input_exit(asus
);
1854 asus_wmi_hwmon_exit(asus
);
1855 asus_wmi_led_exit(asus
);
1856 asus_wmi_rfkill_exit(asus
);
1857 asus_wmi_debugfs_exit(asus
);
1858 asus_wmi_platform_exit(asus
);
1865 * Platform driver - hibernate/resume callbacks
1867 static int asus_hotk_thaw(struct device
*device
)
1869 struct asus_wmi
*asus
= dev_get_drvdata(device
);
1871 if (asus
->wlan
.rfkill
) {
1875 * Work around bios bug - acpi _PTS turns off the wireless led
1876 * during suspend. Normally it restores it on resume, but
1877 * we should kick it ourselves in case hibernation is aborted.
1879 wlan
= asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_WLAN
);
1880 asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN
, wlan
, NULL
);
1886 static int asus_hotk_restore(struct device
*device
)
1888 struct asus_wmi
*asus
= dev_get_drvdata(device
);
1891 /* Refresh both wlan rfkill state and pci hotplug */
1892 if (asus
->wlan
.rfkill
)
1893 asus_rfkill_hotplug(asus
);
1895 if (asus
->bluetooth
.rfkill
) {
1896 bl
= !asus_wmi_get_devstate_simple(asus
,
1897 ASUS_WMI_DEVID_BLUETOOTH
);
1898 rfkill_set_sw_state(asus
->bluetooth
.rfkill
, bl
);
1900 if (asus
->wimax
.rfkill
) {
1901 bl
= !asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_WIMAX
);
1902 rfkill_set_sw_state(asus
->wimax
.rfkill
, bl
);
1904 if (asus
->wwan3g
.rfkill
) {
1905 bl
= !asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_WWAN3G
);
1906 rfkill_set_sw_state(asus
->wwan3g
.rfkill
, bl
);
1908 if (asus
->gps
.rfkill
) {
1909 bl
= !asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_GPS
);
1910 rfkill_set_sw_state(asus
->gps
.rfkill
, bl
);
1912 if (asus
->uwb
.rfkill
) {
1913 bl
= !asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_UWB
);
1914 rfkill_set_sw_state(asus
->uwb
.rfkill
, bl
);
1920 static const struct dev_pm_ops asus_pm_ops
= {
1921 .thaw
= asus_hotk_thaw
,
1922 .restore
= asus_hotk_restore
,
1925 static int asus_wmi_probe(struct platform_device
*pdev
)
1927 struct platform_driver
*pdrv
= to_platform_driver(pdev
->dev
.driver
);
1928 struct asus_wmi_driver
*wdrv
= to_asus_wmi_driver(pdrv
);
1931 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID
)) {
1932 pr_warn("Management GUID not found\n");
1936 if (wdrv
->event_guid
&& !wmi_has_guid(wdrv
->event_guid
)) {
1937 pr_warn("Event GUID not found\n");
1942 ret
= wdrv
->probe(pdev
);
1947 return asus_wmi_add(pdev
);
1952 int __init_or_module
asus_wmi_register_driver(struct asus_wmi_driver
*driver
)
1954 struct platform_driver
*platform_driver
;
1955 struct platform_device
*platform_device
;
1960 platform_driver
= &driver
->platform_driver
;
1961 platform_driver
->remove
= asus_wmi_remove
;
1962 platform_driver
->driver
.owner
= driver
->owner
;
1963 platform_driver
->driver
.name
= driver
->name
;
1964 platform_driver
->driver
.pm
= &asus_pm_ops
;
1966 platform_device
= platform_create_bundle(platform_driver
,
1969 if (IS_ERR(platform_device
))
1970 return PTR_ERR(platform_device
);
1975 EXPORT_SYMBOL_GPL(asus_wmi_register_driver
);
1977 void asus_wmi_unregister_driver(struct asus_wmi_driver
*driver
)
1979 platform_device_unregister(driver
->platform_device
);
1980 platform_driver_unregister(&driver
->platform_driver
);
1983 EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver
);
1985 static int __init
asus_wmi_init(void)
1987 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID
)) {
1988 pr_info("Asus Management GUID not found\n");
1992 pr_info("ASUS WMI generic driver loaded\n");
1996 static void __exit
asus_wmi_exit(void)
1998 pr_info("ASUS WMI generic driver unloaded\n");
2001 module_init(asus_wmi_init
);
2002 module_exit(asus_wmi_exit
);