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 <linux/dmi.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 platform_device
*platform_device
;
189 struct led_classdev wlan_led
;
191 struct led_classdev tpd_led
;
193 struct led_classdev kbd_led
;
195 struct workqueue_struct
*led_workqueue
;
196 struct work_struct tpd_led_work
;
197 struct work_struct kbd_led_work
;
198 struct work_struct wlan_led_work
;
200 struct asus_rfkill wlan
;
201 struct asus_rfkill bluetooth
;
202 struct asus_rfkill wimax
;
203 struct asus_rfkill wwan3g
;
204 struct asus_rfkill gps
;
205 struct asus_rfkill uwb
;
207 struct hotplug_slot
*hotplug_slot
;
208 struct mutex hotplug_lock
;
209 struct mutex wmi_lock
;
210 struct workqueue_struct
*hotplug_workqueue
;
211 struct work_struct hotplug_work
;
213 struct asus_wmi_debug debug
;
215 struct asus_wmi_driver
*driver
;
218 static int asus_wmi_input_init(struct asus_wmi
*asus
)
222 asus
->inputdev
= input_allocate_device();
226 asus
->inputdev
->name
= asus
->driver
->input_name
;
227 asus
->inputdev
->phys
= asus
->driver
->input_phys
;
228 asus
->inputdev
->id
.bustype
= BUS_HOST
;
229 asus
->inputdev
->dev
.parent
= &asus
->platform_device
->dev
;
230 set_bit(EV_REP
, asus
->inputdev
->evbit
);
232 err
= sparse_keymap_setup(asus
->inputdev
, asus
->driver
->keymap
, NULL
);
236 err
= input_register_device(asus
->inputdev
);
238 goto err_free_keymap
;
243 sparse_keymap_free(asus
->inputdev
);
245 input_free_device(asus
->inputdev
);
249 static void asus_wmi_input_exit(struct asus_wmi
*asus
)
251 if (asus
->inputdev
) {
252 sparse_keymap_free(asus
->inputdev
);
253 input_unregister_device(asus
->inputdev
);
256 asus
->inputdev
= NULL
;
259 static int asus_wmi_evaluate_method(u32 method_id
, u32 arg0
, u32 arg1
,
262 struct bios_args args
= {
266 struct acpi_buffer input
= { (acpi_size
) sizeof(args
), &args
};
267 struct acpi_buffer output
= { ACPI_ALLOCATE_BUFFER
, NULL
};
269 union acpi_object
*obj
;
272 status
= wmi_evaluate_method(ASUS_WMI_MGMT_GUID
, 1, method_id
,
275 if (ACPI_FAILURE(status
))
278 obj
= (union acpi_object
*)output
.pointer
;
279 if (obj
&& obj
->type
== ACPI_TYPE_INTEGER
)
280 tmp
= (u32
) obj
->integer
.value
;
288 if (ACPI_FAILURE(status
))
291 if (tmp
== ASUS_WMI_UNSUPPORTED_METHOD
)
297 static int asus_wmi_get_devstate(struct asus_wmi
*asus
, u32 dev_id
, u32
*retval
)
299 return asus_wmi_evaluate_method(asus
->dsts_id
, dev_id
, 0, retval
);
302 static int asus_wmi_set_devstate(u32 dev_id
, u32 ctrl_param
,
305 return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS
, dev_id
,
309 /* Helper for special devices with magic return codes */
310 static int asus_wmi_get_devstate_bits(struct asus_wmi
*asus
,
311 u32 dev_id
, u32 mask
)
316 err
= asus_wmi_get_devstate(asus
, dev_id
, &retval
);
321 if (!(retval
& ASUS_WMI_DSTS_PRESENCE_BIT
))
324 if (mask
== ASUS_WMI_DSTS_STATUS_BIT
) {
325 if (retval
& ASUS_WMI_DSTS_UNKNOWN_BIT
)
329 return retval
& mask
;
332 static int asus_wmi_get_devstate_simple(struct asus_wmi
*asus
, u32 dev_id
)
334 return asus_wmi_get_devstate_bits(asus
, dev_id
,
335 ASUS_WMI_DSTS_STATUS_BIT
);
342 * These functions actually update the LED's, and are called from a
343 * workqueue. By doing this as separate work rather than when the LED
344 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
345 * potentially bad time, such as a timer interrupt.
347 static void tpd_led_update(struct work_struct
*work
)
350 struct asus_wmi
*asus
;
352 asus
= container_of(work
, struct asus_wmi
, tpd_led_work
);
354 ctrl_param
= asus
->tpd_led_wk
;
355 asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED
, ctrl_param
, NULL
);
358 static void tpd_led_set(struct led_classdev
*led_cdev
,
359 enum led_brightness value
)
361 struct asus_wmi
*asus
;
363 asus
= container_of(led_cdev
, struct asus_wmi
, tpd_led
);
365 asus
->tpd_led_wk
= !!value
;
366 queue_work(asus
->led_workqueue
, &asus
->tpd_led_work
);
369 static int read_tpd_led_state(struct asus_wmi
*asus
)
371 return asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_TOUCHPAD_LED
);
374 static enum led_brightness
tpd_led_get(struct led_classdev
*led_cdev
)
376 struct asus_wmi
*asus
;
378 asus
= container_of(led_cdev
, struct asus_wmi
, tpd_led
);
380 return read_tpd_led_state(asus
);
383 static void kbd_led_update(struct work_struct
*work
)
386 struct asus_wmi
*asus
;
388 asus
= container_of(work
, struct asus_wmi
, kbd_led_work
);
392 * bit 7: light on/off
394 if (asus
->kbd_led_wk
> 0)
395 ctrl_param
= 0x80 | (asus
->kbd_led_wk
& 0x7F);
397 asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT
, ctrl_param
, NULL
);
400 static int kbd_led_read(struct asus_wmi
*asus
, int *level
, int *env
)
406 * bit 7: light on/off
407 * bit 8-10: environment (0: dark, 1: normal, 2: light)
408 * bit 17: status unknown
410 retval
= asus_wmi_get_devstate_bits(asus
, ASUS_WMI_DEVID_KBD_BACKLIGHT
,
413 /* Unknown status is considered as off */
414 if (retval
== 0x8000)
419 *level
= retval
& 0x7F;
421 *env
= (retval
>> 8) & 0x7F;
428 static void kbd_led_set(struct led_classdev
*led_cdev
,
429 enum led_brightness value
)
431 struct asus_wmi
*asus
;
433 asus
= container_of(led_cdev
, struct asus_wmi
, kbd_led
);
435 if (value
> asus
->kbd_led
.max_brightness
)
436 value
= asus
->kbd_led
.max_brightness
;
440 asus
->kbd_led_wk
= value
;
441 queue_work(asus
->led_workqueue
, &asus
->kbd_led_work
);
444 static enum led_brightness
kbd_led_get(struct led_classdev
*led_cdev
)
446 struct asus_wmi
*asus
;
449 asus
= container_of(led_cdev
, struct asus_wmi
, kbd_led
);
451 retval
= kbd_led_read(asus
, &value
, NULL
);
459 static int wlan_led_unknown_state(struct asus_wmi
*asus
)
463 asus_wmi_get_devstate(asus
, ASUS_WMI_DEVID_WIRELESS_LED
, &result
);
465 return result
& ASUS_WMI_DSTS_UNKNOWN_BIT
;
468 static int wlan_led_presence(struct asus_wmi
*asus
)
472 asus_wmi_get_devstate(asus
, ASUS_WMI_DEVID_WIRELESS_LED
, &result
);
474 return result
& ASUS_WMI_DSTS_PRESENCE_BIT
;
477 static void wlan_led_update(struct work_struct
*work
)
480 struct asus_wmi
*asus
;
482 asus
= container_of(work
, struct asus_wmi
, wlan_led_work
);
484 ctrl_param
= asus
->wlan_led_wk
;
485 asus_wmi_set_devstate(ASUS_WMI_DEVID_WIRELESS_LED
, ctrl_param
, NULL
);
488 static void wlan_led_set(struct led_classdev
*led_cdev
,
489 enum led_brightness value
)
491 struct asus_wmi
*asus
;
493 asus
= container_of(led_cdev
, struct asus_wmi
, wlan_led
);
495 asus
->wlan_led_wk
= !!value
;
496 queue_work(asus
->led_workqueue
, &asus
->wlan_led_work
);
499 static enum led_brightness
wlan_led_get(struct led_classdev
*led_cdev
)
501 struct asus_wmi
*asus
;
504 asus
= container_of(led_cdev
, struct asus_wmi
, wlan_led
);
505 asus_wmi_get_devstate(asus
, ASUS_WMI_DEVID_WIRELESS_LED
, &result
);
507 return result
& ASUS_WMI_DSTS_BRIGHTNESS_MASK
;
510 static void asus_wmi_led_exit(struct asus_wmi
*asus
)
512 if (!IS_ERR_OR_NULL(asus
->kbd_led
.dev
))
513 led_classdev_unregister(&asus
->kbd_led
);
514 if (!IS_ERR_OR_NULL(asus
->tpd_led
.dev
))
515 led_classdev_unregister(&asus
->tpd_led
);
516 if (!IS_ERR_OR_NULL(asus
->wlan_led
.dev
))
517 led_classdev_unregister(&asus
->wlan_led
);
518 if (asus
->led_workqueue
)
519 destroy_workqueue(asus
->led_workqueue
);
522 static int asus_wmi_led_init(struct asus_wmi
*asus
)
526 asus
->led_workqueue
= create_singlethread_workqueue("led_workqueue");
527 if (!asus
->led_workqueue
)
530 if (read_tpd_led_state(asus
) >= 0) {
531 INIT_WORK(&asus
->tpd_led_work
, tpd_led_update
);
533 asus
->tpd_led
.name
= "asus::touchpad";
534 asus
->tpd_led
.brightness_set
= tpd_led_set
;
535 asus
->tpd_led
.brightness_get
= tpd_led_get
;
536 asus
->tpd_led
.max_brightness
= 1;
538 rv
= led_classdev_register(&asus
->platform_device
->dev
,
544 if (kbd_led_read(asus
, NULL
, NULL
) >= 0) {
545 INIT_WORK(&asus
->kbd_led_work
, kbd_led_update
);
547 asus
->kbd_led
.name
= "asus::kbd_backlight";
548 asus
->kbd_led
.brightness_set
= kbd_led_set
;
549 asus
->kbd_led
.brightness_get
= kbd_led_get
;
550 asus
->kbd_led
.max_brightness
= 3;
552 rv
= led_classdev_register(&asus
->platform_device
->dev
,
558 if (wlan_led_presence(asus
) && (asus
->driver
->quirks
->wapf
> 0)) {
559 INIT_WORK(&asus
->wlan_led_work
, wlan_led_update
);
561 asus
->wlan_led
.name
= "asus::wlan";
562 asus
->wlan_led
.brightness_set
= wlan_led_set
;
563 if (!wlan_led_unknown_state(asus
))
564 asus
->wlan_led
.brightness_get
= wlan_led_get
;
565 asus
->wlan_led
.flags
= LED_CORE_SUSPENDRESUME
;
566 asus
->wlan_led
.max_brightness
= 1;
567 asus
->wlan_led
.default_trigger
= "asus-wlan";
569 rv
= led_classdev_register(&asus
->platform_device
->dev
,
575 asus_wmi_led_exit(asus
);
582 * PCI hotplug (for wlan rfkill)
584 static bool asus_wlan_rfkill_blocked(struct asus_wmi
*asus
)
586 int result
= asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_WLAN
);
593 static void asus_rfkill_hotplug(struct asus_wmi
*asus
)
601 mutex_lock(&asus
->wmi_lock
);
602 blocked
= asus_wlan_rfkill_blocked(asus
);
603 mutex_unlock(&asus
->wmi_lock
);
605 mutex_lock(&asus
->hotplug_lock
);
606 pci_lock_rescan_remove();
608 if (asus
->wlan
.rfkill
)
609 rfkill_set_sw_state(asus
->wlan
.rfkill
, blocked
);
611 if (asus
->hotplug_slot
) {
612 bus
= pci_find_bus(0, 1);
614 pr_warn("Unable to find PCI bus 1?\n");
618 if (pci_bus_read_config_dword(bus
, 0, PCI_VENDOR_ID
, &l
)) {
619 pr_err("Unable to read PCI config space?\n");
622 absent
= (l
== 0xffffffff);
624 if (blocked
!= absent
) {
625 pr_warn("BIOS says wireless lan is %s, "
626 "but the pci device is %s\n",
627 blocked
? "blocked" : "unblocked",
628 absent
? "absent" : "present");
629 pr_warn("skipped wireless hotplug as probably "
630 "inappropriate for this model\n");
635 dev
= pci_get_slot(bus
, 0);
637 /* Device already present */
641 dev
= pci_scan_single_device(bus
, 0);
643 pci_bus_assign_resources(bus
);
644 pci_bus_add_device(dev
);
647 dev
= pci_get_slot(bus
, 0);
649 pci_stop_and_remove_bus_device(dev
);
656 pci_unlock_rescan_remove();
657 mutex_unlock(&asus
->hotplug_lock
);
660 static void asus_rfkill_notify(acpi_handle handle
, u32 event
, void *data
)
662 struct asus_wmi
*asus
= data
;
664 if (event
!= ACPI_NOTIFY_BUS_CHECK
)
668 * We can't call directly asus_rfkill_hotplug because most
669 * of the time WMBC is still being executed and not reetrant.
670 * There is currently no way to tell ACPICA that we want this
671 * method to be serialized, we schedule a asus_rfkill_hotplug
672 * call later, in a safer context.
674 queue_work(asus
->hotplug_workqueue
, &asus
->hotplug_work
);
677 static int asus_register_rfkill_notifier(struct asus_wmi
*asus
, char *node
)
682 status
= acpi_get_handle(NULL
, node
, &handle
);
684 if (ACPI_SUCCESS(status
)) {
685 status
= acpi_install_notify_handler(handle
,
687 asus_rfkill_notify
, asus
);
688 if (ACPI_FAILURE(status
))
689 pr_warn("Failed to register notify on %s\n", node
);
696 static void asus_unregister_rfkill_notifier(struct asus_wmi
*asus
, char *node
)
698 acpi_status status
= AE_OK
;
701 status
= acpi_get_handle(NULL
, node
, &handle
);
703 if (ACPI_SUCCESS(status
)) {
704 status
= acpi_remove_notify_handler(handle
,
707 if (ACPI_FAILURE(status
))
708 pr_err("Error removing rfkill notify handler %s\n",
713 static int asus_get_adapter_status(struct hotplug_slot
*hotplug_slot
,
716 struct asus_wmi
*asus
= hotplug_slot
->private;
717 int result
= asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_WLAN
);
726 static void asus_cleanup_pci_hotplug(struct hotplug_slot
*hotplug_slot
)
728 kfree(hotplug_slot
->info
);
732 static struct hotplug_slot_ops asus_hotplug_slot_ops
= {
733 .owner
= THIS_MODULE
,
734 .get_adapter_status
= asus_get_adapter_status
,
735 .get_power_status
= asus_get_adapter_status
,
738 static void asus_hotplug_work(struct work_struct
*work
)
740 struct asus_wmi
*asus
;
742 asus
= container_of(work
, struct asus_wmi
, hotplug_work
);
743 asus_rfkill_hotplug(asus
);
746 static int asus_setup_pci_hotplug(struct asus_wmi
*asus
)
749 struct pci_bus
*bus
= pci_find_bus(0, 1);
752 pr_err("Unable to find wifi PCI bus\n");
756 asus
->hotplug_workqueue
=
757 create_singlethread_workqueue("hotplug_workqueue");
758 if (!asus
->hotplug_workqueue
)
759 goto error_workqueue
;
761 INIT_WORK(&asus
->hotplug_work
, asus_hotplug_work
);
763 asus
->hotplug_slot
= kzalloc(sizeof(struct hotplug_slot
), GFP_KERNEL
);
764 if (!asus
->hotplug_slot
)
767 asus
->hotplug_slot
->info
= kzalloc(sizeof(struct hotplug_slot_info
),
769 if (!asus
->hotplug_slot
->info
)
772 asus
->hotplug_slot
->private = asus
;
773 asus
->hotplug_slot
->release
= &asus_cleanup_pci_hotplug
;
774 asus
->hotplug_slot
->ops
= &asus_hotplug_slot_ops
;
775 asus_get_adapter_status(asus
->hotplug_slot
,
776 &asus
->hotplug_slot
->info
->adapter_status
);
778 ret
= pci_hp_register(asus
->hotplug_slot
, bus
, 0, "asus-wifi");
780 pr_err("Unable to register hotplug slot - %d\n", ret
);
787 kfree(asus
->hotplug_slot
->info
);
789 kfree(asus
->hotplug_slot
);
790 asus
->hotplug_slot
= NULL
;
792 destroy_workqueue(asus
->hotplug_workqueue
);
800 static int asus_rfkill_set(void *data
, bool blocked
)
802 struct asus_rfkill
*priv
= data
;
803 u32 ctrl_param
= !blocked
;
804 u32 dev_id
= priv
->dev_id
;
807 * If the user bit is set, BIOS can't set and record the wlan status,
808 * it will report the value read from id ASUS_WMI_DEVID_WLAN_LED
809 * while we query the wlan status through WMI(ASUS_WMI_DEVID_WLAN).
810 * So, we have to record wlan status in id ASUS_WMI_DEVID_WLAN_LED
811 * while setting the wlan status through WMI.
812 * This is also the behavior that windows app will do.
814 if ((dev_id
== ASUS_WMI_DEVID_WLAN
) &&
815 priv
->asus
->driver
->wlan_ctrl_by_user
)
816 dev_id
= ASUS_WMI_DEVID_WLAN_LED
;
818 return asus_wmi_set_devstate(dev_id
, ctrl_param
, NULL
);
821 static void asus_rfkill_query(struct rfkill
*rfkill
, void *data
)
823 struct asus_rfkill
*priv
= data
;
826 result
= asus_wmi_get_devstate_simple(priv
->asus
, priv
->dev_id
);
831 rfkill_set_sw_state(priv
->rfkill
, !result
);
834 static int asus_rfkill_wlan_set(void *data
, bool blocked
)
836 struct asus_rfkill
*priv
= data
;
837 struct asus_wmi
*asus
= priv
->asus
;
841 * This handler is enabled only if hotplug is enabled.
842 * In this case, the asus_wmi_set_devstate() will
843 * trigger a wmi notification and we need to wait
844 * this call to finish before being able to call
847 mutex_lock(&asus
->wmi_lock
);
848 ret
= asus_rfkill_set(data
, blocked
);
849 mutex_unlock(&asus
->wmi_lock
);
853 static const struct rfkill_ops asus_rfkill_wlan_ops
= {
854 .set_block
= asus_rfkill_wlan_set
,
855 .query
= asus_rfkill_query
,
858 static const struct rfkill_ops asus_rfkill_ops
= {
859 .set_block
= asus_rfkill_set
,
860 .query
= asus_rfkill_query
,
863 static int asus_new_rfkill(struct asus_wmi
*asus
,
864 struct asus_rfkill
*arfkill
,
865 const char *name
, enum rfkill_type type
, int dev_id
)
867 int result
= asus_wmi_get_devstate_simple(asus
, dev_id
);
868 struct rfkill
**rfkill
= &arfkill
->rfkill
;
873 arfkill
->dev_id
= dev_id
;
874 arfkill
->asus
= asus
;
876 if (dev_id
== ASUS_WMI_DEVID_WLAN
&&
877 asus
->driver
->quirks
->hotplug_wireless
)
878 *rfkill
= rfkill_alloc(name
, &asus
->platform_device
->dev
, type
,
879 &asus_rfkill_wlan_ops
, arfkill
);
881 *rfkill
= rfkill_alloc(name
, &asus
->platform_device
->dev
, type
,
882 &asus_rfkill_ops
, arfkill
);
887 if ((dev_id
== ASUS_WMI_DEVID_WLAN
) &&
888 (asus
->driver
->quirks
->wapf
> 0))
889 rfkill_set_led_trigger_name(*rfkill
, "asus-wlan");
891 rfkill_init_sw_state(*rfkill
, !result
);
892 result
= rfkill_register(*rfkill
);
894 rfkill_destroy(*rfkill
);
901 static void asus_wmi_rfkill_exit(struct asus_wmi
*asus
)
903 asus_unregister_rfkill_notifier(asus
, "\\_SB.PCI0.P0P5");
904 asus_unregister_rfkill_notifier(asus
, "\\_SB.PCI0.P0P6");
905 asus_unregister_rfkill_notifier(asus
, "\\_SB.PCI0.P0P7");
906 if (asus
->wlan
.rfkill
) {
907 rfkill_unregister(asus
->wlan
.rfkill
);
908 rfkill_destroy(asus
->wlan
.rfkill
);
909 asus
->wlan
.rfkill
= NULL
;
912 * Refresh pci hotplug in case the rfkill state was changed after
913 * asus_unregister_rfkill_notifier()
915 asus_rfkill_hotplug(asus
);
916 if (asus
->hotplug_slot
)
917 pci_hp_deregister(asus
->hotplug_slot
);
918 if (asus
->hotplug_workqueue
)
919 destroy_workqueue(asus
->hotplug_workqueue
);
921 if (asus
->bluetooth
.rfkill
) {
922 rfkill_unregister(asus
->bluetooth
.rfkill
);
923 rfkill_destroy(asus
->bluetooth
.rfkill
);
924 asus
->bluetooth
.rfkill
= NULL
;
926 if (asus
->wimax
.rfkill
) {
927 rfkill_unregister(asus
->wimax
.rfkill
);
928 rfkill_destroy(asus
->wimax
.rfkill
);
929 asus
->wimax
.rfkill
= NULL
;
931 if (asus
->wwan3g
.rfkill
) {
932 rfkill_unregister(asus
->wwan3g
.rfkill
);
933 rfkill_destroy(asus
->wwan3g
.rfkill
);
934 asus
->wwan3g
.rfkill
= NULL
;
936 if (asus
->gps
.rfkill
) {
937 rfkill_unregister(asus
->gps
.rfkill
);
938 rfkill_destroy(asus
->gps
.rfkill
);
939 asus
->gps
.rfkill
= NULL
;
941 if (asus
->uwb
.rfkill
) {
942 rfkill_unregister(asus
->uwb
.rfkill
);
943 rfkill_destroy(asus
->uwb
.rfkill
);
944 asus
->uwb
.rfkill
= NULL
;
948 static int asus_wmi_rfkill_init(struct asus_wmi
*asus
)
952 mutex_init(&asus
->hotplug_lock
);
953 mutex_init(&asus
->wmi_lock
);
955 result
= asus_new_rfkill(asus
, &asus
->wlan
, "asus-wlan",
956 RFKILL_TYPE_WLAN
, ASUS_WMI_DEVID_WLAN
);
958 if (result
&& result
!= -ENODEV
)
961 result
= asus_new_rfkill(asus
, &asus
->bluetooth
,
962 "asus-bluetooth", RFKILL_TYPE_BLUETOOTH
,
963 ASUS_WMI_DEVID_BLUETOOTH
);
965 if (result
&& result
!= -ENODEV
)
968 result
= asus_new_rfkill(asus
, &asus
->wimax
, "asus-wimax",
969 RFKILL_TYPE_WIMAX
, ASUS_WMI_DEVID_WIMAX
);
971 if (result
&& result
!= -ENODEV
)
974 result
= asus_new_rfkill(asus
, &asus
->wwan3g
, "asus-wwan3g",
975 RFKILL_TYPE_WWAN
, ASUS_WMI_DEVID_WWAN3G
);
977 if (result
&& result
!= -ENODEV
)
980 result
= asus_new_rfkill(asus
, &asus
->gps
, "asus-gps",
981 RFKILL_TYPE_GPS
, ASUS_WMI_DEVID_GPS
);
983 if (result
&& result
!= -ENODEV
)
986 result
= asus_new_rfkill(asus
, &asus
->uwb
, "asus-uwb",
987 RFKILL_TYPE_UWB
, ASUS_WMI_DEVID_UWB
);
989 if (result
&& result
!= -ENODEV
)
992 if (!asus
->driver
->quirks
->hotplug_wireless
)
995 result
= asus_setup_pci_hotplug(asus
);
997 * If we get -EBUSY then something else is handling the PCI hotplug -
998 * don't fail in this case
1000 if (result
== -EBUSY
)
1003 asus_register_rfkill_notifier(asus
, "\\_SB.PCI0.P0P5");
1004 asus_register_rfkill_notifier(asus
, "\\_SB.PCI0.P0P6");
1005 asus_register_rfkill_notifier(asus
, "\\_SB.PCI0.P0P7");
1007 * Refresh pci hotplug in case the rfkill state was changed during
1010 asus_rfkill_hotplug(asus
);
1013 if (result
&& result
!= -ENODEV
)
1014 asus_wmi_rfkill_exit(asus
);
1016 if (result
== -ENODEV
)
1025 static ssize_t
asus_hwmon_pwm1(struct device
*dev
,
1026 struct device_attribute
*attr
,
1029 struct asus_wmi
*asus
= dev_get_drvdata(dev
);
1033 err
= asus_wmi_get_devstate(asus
, ASUS_WMI_DEVID_FAN_CTRL
, &value
);
1040 if (value
== 1) /* Low Speed */
1042 else if (value
== 2)
1044 else if (value
== 3)
1046 else if (value
!= 0) {
1047 pr_err("Unknown fan speed %#x\n", value
);
1051 return sprintf(buf
, "%d\n", value
);
1054 static ssize_t
asus_hwmon_temp1(struct device
*dev
,
1055 struct device_attribute
*attr
,
1058 struct asus_wmi
*asus
= dev_get_drvdata(dev
);
1062 err
= asus_wmi_get_devstate(asus
, ASUS_WMI_DEVID_THERMAL_CTRL
, &value
);
1067 value
= KELVIN_TO_CELSIUS((value
& 0xFFFF)) * 1000;
1069 return sprintf(buf
, "%d\n", value
);
1072 static DEVICE_ATTR(pwm1
, S_IRUGO
, asus_hwmon_pwm1
, NULL
);
1073 static DEVICE_ATTR(temp1_input
, S_IRUGO
, asus_hwmon_temp1
, NULL
);
1075 static struct attribute
*hwmon_attributes
[] = {
1076 &dev_attr_pwm1
.attr
,
1077 &dev_attr_temp1_input
.attr
,
1081 static umode_t
asus_hwmon_sysfs_is_visible(struct kobject
*kobj
,
1082 struct attribute
*attr
, int idx
)
1084 struct device
*dev
= container_of(kobj
, struct device
, kobj
);
1085 struct platform_device
*pdev
= to_platform_device(dev
->parent
);
1086 struct asus_wmi
*asus
= platform_get_drvdata(pdev
);
1089 u32 value
= ASUS_WMI_UNSUPPORTED_METHOD
;
1091 if (attr
== &dev_attr_pwm1
.attr
)
1092 dev_id
= ASUS_WMI_DEVID_FAN_CTRL
;
1093 else if (attr
== &dev_attr_temp1_input
.attr
)
1094 dev_id
= ASUS_WMI_DEVID_THERMAL_CTRL
;
1097 int err
= asus_wmi_get_devstate(asus
, dev_id
, &value
);
1100 return 0; /* can't return negative here */
1103 if (dev_id
== ASUS_WMI_DEVID_FAN_CTRL
) {
1105 * We need to find a better way, probably using sfun,
1107 * Currently we disable it if:
1108 * - ASUS_WMI_UNSUPPORTED_METHOD is returned
1109 * - reverved bits are non-zero
1110 * - sfun and presence bit are not set
1112 if (value
== ASUS_WMI_UNSUPPORTED_METHOD
|| value
& 0xFFF80000
1113 || (!asus
->sfun
&& !(value
& ASUS_WMI_DSTS_PRESENCE_BIT
)))
1115 } else if (dev_id
== ASUS_WMI_DEVID_THERMAL_CTRL
) {
1116 /* If value is zero, something is clearly wrong */
1121 return ok
? attr
->mode
: 0;
1124 static struct attribute_group hwmon_attribute_group
= {
1125 .is_visible
= asus_hwmon_sysfs_is_visible
,
1126 .attrs
= hwmon_attributes
1128 __ATTRIBUTE_GROUPS(hwmon_attribute
);
1130 static int asus_wmi_hwmon_init(struct asus_wmi
*asus
)
1132 struct device
*hwmon
;
1134 hwmon
= hwmon_device_register_with_groups(&asus
->platform_device
->dev
,
1136 hwmon_attribute_groups
);
1137 if (IS_ERR(hwmon
)) {
1138 pr_err("Could not register asus hwmon device\n");
1139 return PTR_ERR(hwmon
);
1147 static int read_backlight_power(struct asus_wmi
*asus
)
1150 if (asus
->driver
->quirks
->store_backlight_power
)
1151 ret
= !asus
->driver
->panel_power
;
1153 ret
= asus_wmi_get_devstate_simple(asus
,
1154 ASUS_WMI_DEVID_BACKLIGHT
);
1159 return ret
? FB_BLANK_UNBLANK
: FB_BLANK_POWERDOWN
;
1162 static int read_brightness_max(struct asus_wmi
*asus
)
1167 err
= asus_wmi_get_devstate(asus
, ASUS_WMI_DEVID_BRIGHTNESS
, &retval
);
1172 retval
= retval
& ASUS_WMI_DSTS_MAX_BRIGTH_MASK
;
1181 static int read_brightness(struct backlight_device
*bd
)
1183 struct asus_wmi
*asus
= bl_get_data(bd
);
1187 err
= asus_wmi_get_devstate(asus
, ASUS_WMI_DEVID_BRIGHTNESS
, &retval
);
1192 return retval
& ASUS_WMI_DSTS_BRIGHTNESS_MASK
;
1195 static u32
get_scalar_command(struct backlight_device
*bd
)
1197 struct asus_wmi
*asus
= bl_get_data(bd
);
1200 if ((asus
->driver
->brightness
< bd
->props
.brightness
) ||
1201 bd
->props
.brightness
== bd
->props
.max_brightness
)
1202 ctrl_param
= 0x00008001;
1203 else if ((asus
->driver
->brightness
> bd
->props
.brightness
) ||
1204 bd
->props
.brightness
== 0)
1205 ctrl_param
= 0x00008000;
1207 asus
->driver
->brightness
= bd
->props
.brightness
;
1212 static int update_bl_status(struct backlight_device
*bd
)
1214 struct asus_wmi
*asus
= bl_get_data(bd
);
1218 power
= read_backlight_power(asus
);
1219 if (power
!= -ENODEV
&& bd
->props
.power
!= power
) {
1220 ctrl_param
= !!(bd
->props
.power
== FB_BLANK_UNBLANK
);
1221 err
= asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT
,
1223 if (asus
->driver
->quirks
->store_backlight_power
)
1224 asus
->driver
->panel_power
= bd
->props
.power
;
1226 /* When using scalar brightness, updating the brightness
1227 * will mess with the backlight power */
1228 if (asus
->driver
->quirks
->scalar_panel_brightness
)
1232 if (asus
->driver
->quirks
->scalar_panel_brightness
)
1233 ctrl_param
= get_scalar_command(bd
);
1235 ctrl_param
= bd
->props
.brightness
;
1237 err
= asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS
,
1243 static const struct backlight_ops asus_wmi_bl_ops
= {
1244 .get_brightness
= read_brightness
,
1245 .update_status
= update_bl_status
,
1248 static int asus_wmi_backlight_notify(struct asus_wmi
*asus
, int code
)
1250 struct backlight_device
*bd
= asus
->backlight_device
;
1251 int old
= bd
->props
.brightness
;
1254 if (code
>= NOTIFY_BRNUP_MIN
&& code
<= NOTIFY_BRNUP_MAX
)
1255 new = code
- NOTIFY_BRNUP_MIN
+ 1;
1256 else if (code
>= NOTIFY_BRNDOWN_MIN
&& code
<= NOTIFY_BRNDOWN_MAX
)
1257 new = code
- NOTIFY_BRNDOWN_MIN
;
1259 bd
->props
.brightness
= new;
1260 backlight_update_status(bd
);
1261 backlight_force_update(bd
, BACKLIGHT_UPDATE_HOTKEY
);
1266 static int asus_wmi_backlight_init(struct asus_wmi
*asus
)
1268 struct backlight_device
*bd
;
1269 struct backlight_properties props
;
1273 max
= read_brightness_max(asus
);
1277 power
= read_backlight_power(asus
);
1279 if (power
== -ENODEV
)
1280 power
= FB_BLANK_UNBLANK
;
1284 memset(&props
, 0, sizeof(struct backlight_properties
));
1285 props
.type
= BACKLIGHT_PLATFORM
;
1286 props
.max_brightness
= max
;
1287 bd
= backlight_device_register(asus
->driver
->name
,
1288 &asus
->platform_device
->dev
, asus
,
1289 &asus_wmi_bl_ops
, &props
);
1291 pr_err("Could not register backlight device\n");
1295 asus
->backlight_device
= bd
;
1297 if (asus
->driver
->quirks
->store_backlight_power
)
1298 asus
->driver
->panel_power
= power
;
1300 bd
->props
.brightness
= read_brightness(bd
);
1301 bd
->props
.power
= power
;
1302 backlight_update_status(bd
);
1304 asus
->driver
->brightness
= bd
->props
.brightness
;
1309 static void asus_wmi_backlight_exit(struct asus_wmi
*asus
)
1311 if (asus
->backlight_device
)
1312 backlight_device_unregister(asus
->backlight_device
);
1314 asus
->backlight_device
= NULL
;
1317 static int is_display_toggle(int code
)
1319 /* display toggle keys */
1320 if ((code
>= 0x61 && code
<= 0x67) ||
1321 (code
>= 0x8c && code
<= 0x93) ||
1322 (code
>= 0xa0 && code
<= 0xa7) ||
1323 (code
>= 0xd0 && code
<= 0xd5))
1329 static void asus_wmi_notify(u32 value
, void *context
)
1331 struct asus_wmi
*asus
= context
;
1332 struct acpi_buffer response
= { ACPI_ALLOCATE_BUFFER
, NULL
};
1333 union acpi_object
*obj
;
1337 unsigned int key_value
= 1;
1338 bool autorelease
= 1;
1340 status
= wmi_get_event_data(value
, &response
);
1341 if (status
!= AE_OK
) {
1342 pr_err("bad event status 0x%x\n", status
);
1346 obj
= (union acpi_object
*)response
.pointer
;
1348 if (!obj
|| obj
->type
!= ACPI_TYPE_INTEGER
)
1351 code
= obj
->integer
.value
;
1354 if (asus
->driver
->key_filter
) {
1355 asus
->driver
->key_filter(asus
->driver
, &code
, &key_value
,
1357 if (code
== ASUS_WMI_KEY_IGNORE
)
1361 if (code
>= NOTIFY_BRNUP_MIN
&& code
<= NOTIFY_BRNUP_MAX
)
1362 code
= ASUS_WMI_BRN_UP
;
1363 else if (code
>= NOTIFY_BRNDOWN_MIN
&&
1364 code
<= NOTIFY_BRNDOWN_MAX
)
1365 code
= ASUS_WMI_BRN_DOWN
;
1367 if (code
== ASUS_WMI_BRN_DOWN
|| code
== ASUS_WMI_BRN_UP
) {
1368 if (!acpi_video_backlight_support()) {
1369 asus_wmi_backlight_notify(asus
, orig_code
);
1374 if (is_display_toggle(code
) &&
1375 asus
->driver
->quirks
->no_display_toggle
)
1378 if (!sparse_keymap_report_event(asus
->inputdev
, code
,
1379 key_value
, autorelease
))
1380 pr_info("Unknown key %x pressed\n", code
);
1389 static int parse_arg(const char *buf
, unsigned long count
, int *val
)
1393 if (sscanf(buf
, "%i", val
) != 1)
1398 static ssize_t
store_sys_wmi(struct asus_wmi
*asus
, int devid
,
1399 const char *buf
, size_t count
)
1404 value
= asus_wmi_get_devstate_simple(asus
, devid
);
1405 if (value
== -ENODEV
) /* Check device presence */
1408 rv
= parse_arg(buf
, count
, &value
);
1409 err
= asus_wmi_set_devstate(devid
, value
, &retval
);
1417 static ssize_t
show_sys_wmi(struct asus_wmi
*asus
, int devid
, char *buf
)
1419 int value
= asus_wmi_get_devstate_simple(asus
, devid
);
1424 return sprintf(buf
, "%d\n", value
);
1427 #define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \
1428 static ssize_t show_##_name(struct device *dev, \
1429 struct device_attribute *attr, \
1432 struct asus_wmi *asus = dev_get_drvdata(dev); \
1434 return show_sys_wmi(asus, _cm, buf); \
1436 static ssize_t store_##_name(struct device *dev, \
1437 struct device_attribute *attr, \
1438 const char *buf, size_t count) \
1440 struct asus_wmi *asus = dev_get_drvdata(dev); \
1442 return store_sys_wmi(asus, _cm, buf, count); \
1444 static struct device_attribute dev_attr_##_name = { \
1446 .name = __stringify(_name), \
1448 .show = show_##_name, \
1449 .store = store_##_name, \
1452 ASUS_WMI_CREATE_DEVICE_ATTR(touchpad
, 0644, ASUS_WMI_DEVID_TOUCHPAD
);
1453 ASUS_WMI_CREATE_DEVICE_ATTR(camera
, 0644, ASUS_WMI_DEVID_CAMERA
);
1454 ASUS_WMI_CREATE_DEVICE_ATTR(cardr
, 0644, ASUS_WMI_DEVID_CARDREADER
);
1455 ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume
, 0644, ASUS_WMI_DEVID_LID_RESUME
);
1457 static ssize_t
store_cpufv(struct device
*dev
, struct device_attribute
*attr
,
1458 const char *buf
, size_t count
)
1462 if (!count
|| sscanf(buf
, "%i", &value
) != 1)
1464 if (value
< 0 || value
> 2)
1467 rv
= asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS
, value
, 0, NULL
);
1474 static DEVICE_ATTR(cpufv
, S_IRUGO
| S_IWUSR
, NULL
, store_cpufv
);
1476 static struct attribute
*platform_attributes
[] = {
1477 &dev_attr_cpufv
.attr
,
1478 &dev_attr_camera
.attr
,
1479 &dev_attr_cardr
.attr
,
1480 &dev_attr_touchpad
.attr
,
1481 &dev_attr_lid_resume
.attr
,
1485 static umode_t
asus_sysfs_is_visible(struct kobject
*kobj
,
1486 struct attribute
*attr
, int idx
)
1488 struct device
*dev
= container_of(kobj
, struct device
, kobj
);
1489 struct platform_device
*pdev
= to_platform_device(dev
);
1490 struct asus_wmi
*asus
= platform_get_drvdata(pdev
);
1494 if (attr
== &dev_attr_camera
.attr
)
1495 devid
= ASUS_WMI_DEVID_CAMERA
;
1496 else if (attr
== &dev_attr_cardr
.attr
)
1497 devid
= ASUS_WMI_DEVID_CARDREADER
;
1498 else if (attr
== &dev_attr_touchpad
.attr
)
1499 devid
= ASUS_WMI_DEVID_TOUCHPAD
;
1500 else if (attr
== &dev_attr_lid_resume
.attr
)
1501 devid
= ASUS_WMI_DEVID_LID_RESUME
;
1504 ok
= !(asus_wmi_get_devstate_simple(asus
, devid
) < 0);
1506 return ok
? attr
->mode
: 0;
1509 static struct attribute_group platform_attribute_group
= {
1510 .is_visible
= asus_sysfs_is_visible
,
1511 .attrs
= platform_attributes
1514 static void asus_wmi_sysfs_exit(struct platform_device
*device
)
1516 sysfs_remove_group(&device
->dev
.kobj
, &platform_attribute_group
);
1519 static int asus_wmi_sysfs_init(struct platform_device
*device
)
1521 return sysfs_create_group(&device
->dev
.kobj
, &platform_attribute_group
);
1527 static int asus_wmi_platform_init(struct asus_wmi
*asus
)
1531 /* INIT enable hotkeys on some models */
1532 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT
, 0, 0, &rv
))
1533 pr_info("Initialization: %#x\n", rv
);
1535 /* We don't know yet what to do with this version... */
1536 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC
, 0, 0x9, &rv
)) {
1537 pr_info("BIOS WMI version: %d.%d\n", rv
>> 16, rv
& 0xFF);
1542 * The SFUN method probably allows the original driver to get the list
1543 * of features supported by a given model. For now, 0x0100 or 0x0800
1544 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
1545 * The significance of others is yet to be found.
1547 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN
, 0, 0, &rv
)) {
1548 pr_info("SFUN value: %#x\n", rv
);
1553 * Eee PC and Notebooks seems to have different method_id for DSTS,
1554 * but it may also be related to the BIOS's SPEC.
1555 * Note, on most Eeepc, there is no way to check if a method exist
1556 * or note, while on notebooks, they returns 0xFFFFFFFE on failure,
1557 * but once again, SPEC may probably be used for that kind of things.
1559 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS
, 0, 0, NULL
))
1560 asus
->dsts_id
= ASUS_WMI_METHODID_DSTS
;
1562 asus
->dsts_id
= ASUS_WMI_METHODID_DSTS2
;
1564 /* CWAP allow to define the behavior of the Fn+F2 key,
1565 * this method doesn't seems to be present on Eee PCs */
1566 if (asus
->driver
->quirks
->wapf
>= 0)
1567 asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP
,
1568 asus
->driver
->quirks
->wapf
, NULL
);
1570 return asus_wmi_sysfs_init(asus
->platform_device
);
1573 static void asus_wmi_platform_exit(struct asus_wmi
*asus
)
1575 asus_wmi_sysfs_exit(asus
->platform_device
);
1581 struct asus_wmi_debugfs_node
{
1582 struct asus_wmi
*asus
;
1584 int (*show
) (struct seq_file
*m
, void *data
);
1587 static int show_dsts(struct seq_file
*m
, void *data
)
1589 struct asus_wmi
*asus
= m
->private;
1593 err
= asus_wmi_get_devstate(asus
, asus
->debug
.dev_id
, &retval
);
1598 seq_printf(m
, "DSTS(%#x) = %#x\n", asus
->debug
.dev_id
, retval
);
1603 static int show_devs(struct seq_file
*m
, void *data
)
1605 struct asus_wmi
*asus
= m
->private;
1609 err
= asus_wmi_set_devstate(asus
->debug
.dev_id
, asus
->debug
.ctrl_param
,
1615 seq_printf(m
, "DEVS(%#x, %#x) = %#x\n", asus
->debug
.dev_id
,
1616 asus
->debug
.ctrl_param
, retval
);
1621 static int show_call(struct seq_file
*m
, void *data
)
1623 struct asus_wmi
*asus
= m
->private;
1624 struct bios_args args
= {
1625 .arg0
= asus
->debug
.dev_id
,
1626 .arg1
= asus
->debug
.ctrl_param
,
1628 struct acpi_buffer input
= { (acpi_size
) sizeof(args
), &args
};
1629 struct acpi_buffer output
= { ACPI_ALLOCATE_BUFFER
, NULL
};
1630 union acpi_object
*obj
;
1633 status
= wmi_evaluate_method(ASUS_WMI_MGMT_GUID
,
1634 1, asus
->debug
.method_id
,
1637 if (ACPI_FAILURE(status
))
1640 obj
= (union acpi_object
*)output
.pointer
;
1641 if (obj
&& obj
->type
== ACPI_TYPE_INTEGER
)
1642 seq_printf(m
, "%#x(%#x, %#x) = %#x\n", asus
->debug
.method_id
,
1643 asus
->debug
.dev_id
, asus
->debug
.ctrl_param
,
1644 (u32
) obj
->integer
.value
);
1646 seq_printf(m
, "%#x(%#x, %#x) = t:%d\n", asus
->debug
.method_id
,
1647 asus
->debug
.dev_id
, asus
->debug
.ctrl_param
,
1648 obj
? obj
->type
: -1);
1655 static struct asus_wmi_debugfs_node asus_wmi_debug_files
[] = {
1656 {NULL
, "devs", show_devs
},
1657 {NULL
, "dsts", show_dsts
},
1658 {NULL
, "call", show_call
},
1661 static int asus_wmi_debugfs_open(struct inode
*inode
, struct file
*file
)
1663 struct asus_wmi_debugfs_node
*node
= inode
->i_private
;
1665 return single_open(file
, node
->show
, node
->asus
);
1668 static const struct file_operations asus_wmi_debugfs_io_ops
= {
1669 .owner
= THIS_MODULE
,
1670 .open
= asus_wmi_debugfs_open
,
1672 .llseek
= seq_lseek
,
1673 .release
= single_release
,
1676 static void asus_wmi_debugfs_exit(struct asus_wmi
*asus
)
1678 debugfs_remove_recursive(asus
->debug
.root
);
1681 static int asus_wmi_debugfs_init(struct asus_wmi
*asus
)
1683 struct dentry
*dent
;
1686 asus
->debug
.root
= debugfs_create_dir(asus
->driver
->name
, NULL
);
1687 if (!asus
->debug
.root
) {
1688 pr_err("failed to create debugfs directory\n");
1692 dent
= debugfs_create_x32("method_id", S_IRUGO
| S_IWUSR
,
1693 asus
->debug
.root
, &asus
->debug
.method_id
);
1697 dent
= debugfs_create_x32("dev_id", S_IRUGO
| S_IWUSR
,
1698 asus
->debug
.root
, &asus
->debug
.dev_id
);
1702 dent
= debugfs_create_x32("ctrl_param", S_IRUGO
| S_IWUSR
,
1703 asus
->debug
.root
, &asus
->debug
.ctrl_param
);
1707 for (i
= 0; i
< ARRAY_SIZE(asus_wmi_debug_files
); i
++) {
1708 struct asus_wmi_debugfs_node
*node
= &asus_wmi_debug_files
[i
];
1711 dent
= debugfs_create_file(node
->name
, S_IFREG
| S_IRUGO
,
1712 asus
->debug
.root
, node
,
1713 &asus_wmi_debugfs_io_ops
);
1715 pr_err("failed to create debug file: %s\n", node
->name
);
1723 asus_wmi_debugfs_exit(asus
);
1730 static int asus_wmi_add(struct platform_device
*pdev
)
1732 struct platform_driver
*pdrv
= to_platform_driver(pdev
->dev
.driver
);
1733 struct asus_wmi_driver
*wdrv
= to_asus_wmi_driver(pdrv
);
1734 struct asus_wmi
*asus
;
1735 const char *chassis_type
;
1740 asus
= kzalloc(sizeof(struct asus_wmi
), GFP_KERNEL
);
1744 asus
->driver
= wdrv
;
1745 asus
->platform_device
= pdev
;
1746 wdrv
->platform_device
= pdev
;
1747 platform_set_drvdata(asus
->platform_device
, asus
);
1749 if (wdrv
->detect_quirks
)
1750 wdrv
->detect_quirks(asus
->driver
);
1752 err
= asus_wmi_platform_init(asus
);
1756 err
= asus_wmi_input_init(asus
);
1760 err
= asus_wmi_hwmon_init(asus
);
1764 err
= asus_wmi_led_init(asus
);
1768 err
= asus_wmi_rfkill_init(asus
);
1772 /* Some Asus desktop boards export an acpi-video backlight interface,
1773 stop this from showing up */
1774 chassis_type
= dmi_get_system_info(DMI_CHASSIS_TYPE
);
1775 if (chassis_type
&& !strcmp(chassis_type
, "3"))
1776 acpi_video_dmi_promote_vendor();
1777 if (asus
->driver
->quirks
->wmi_backlight_power
)
1778 acpi_video_dmi_promote_vendor();
1779 if (!acpi_video_backlight_support()) {
1780 pr_info("Disabling ACPI video driver\n");
1781 acpi_video_unregister();
1782 err
= asus_wmi_backlight_init(asus
);
1783 if (err
&& err
!= -ENODEV
)
1784 goto fail_backlight
;
1786 pr_info("Backlight controlled by ACPI video driver\n");
1788 status
= wmi_install_notify_handler(asus
->driver
->event_guid
,
1789 asus_wmi_notify
, asus
);
1790 if (ACPI_FAILURE(status
)) {
1791 pr_err("Unable to register notify handler - %d\n", status
);
1793 goto fail_wmi_handler
;
1796 err
= asus_wmi_debugfs_init(asus
);
1800 asus_wmi_get_devstate(asus
, ASUS_WMI_DEVID_WLAN
, &result
);
1801 if (result
& (ASUS_WMI_DSTS_PRESENCE_BIT
| ASUS_WMI_DSTS_USER_BIT
))
1802 asus
->driver
->wlan_ctrl_by_user
= 1;
1807 wmi_remove_notify_handler(asus
->driver
->event_guid
);
1809 asus_wmi_backlight_exit(asus
);
1811 asus_wmi_rfkill_exit(asus
);
1813 asus_wmi_led_exit(asus
);
1816 asus_wmi_input_exit(asus
);
1818 asus_wmi_platform_exit(asus
);
1824 static int asus_wmi_remove(struct platform_device
*device
)
1826 struct asus_wmi
*asus
;
1828 asus
= platform_get_drvdata(device
);
1829 wmi_remove_notify_handler(asus
->driver
->event_guid
);
1830 asus_wmi_backlight_exit(asus
);
1831 asus_wmi_input_exit(asus
);
1832 asus_wmi_led_exit(asus
);
1833 asus_wmi_rfkill_exit(asus
);
1834 asus_wmi_debugfs_exit(asus
);
1835 asus_wmi_platform_exit(asus
);
1842 * Platform driver - hibernate/resume callbacks
1844 static int asus_hotk_thaw(struct device
*device
)
1846 struct asus_wmi
*asus
= dev_get_drvdata(device
);
1848 if (asus
->wlan
.rfkill
) {
1852 * Work around bios bug - acpi _PTS turns off the wireless led
1853 * during suspend. Normally it restores it on resume, but
1854 * we should kick it ourselves in case hibernation is aborted.
1856 wlan
= asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_WLAN
);
1857 asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN
, wlan
, NULL
);
1863 static int asus_hotk_restore(struct device
*device
)
1865 struct asus_wmi
*asus
= dev_get_drvdata(device
);
1868 /* Refresh both wlan rfkill state and pci hotplug */
1869 if (asus
->wlan
.rfkill
)
1870 asus_rfkill_hotplug(asus
);
1872 if (asus
->bluetooth
.rfkill
) {
1873 bl
= !asus_wmi_get_devstate_simple(asus
,
1874 ASUS_WMI_DEVID_BLUETOOTH
);
1875 rfkill_set_sw_state(asus
->bluetooth
.rfkill
, bl
);
1877 if (asus
->wimax
.rfkill
) {
1878 bl
= !asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_WIMAX
);
1879 rfkill_set_sw_state(asus
->wimax
.rfkill
, bl
);
1881 if (asus
->wwan3g
.rfkill
) {
1882 bl
= !asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_WWAN3G
);
1883 rfkill_set_sw_state(asus
->wwan3g
.rfkill
, bl
);
1885 if (asus
->gps
.rfkill
) {
1886 bl
= !asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_GPS
);
1887 rfkill_set_sw_state(asus
->gps
.rfkill
, bl
);
1889 if (asus
->uwb
.rfkill
) {
1890 bl
= !asus_wmi_get_devstate_simple(asus
, ASUS_WMI_DEVID_UWB
);
1891 rfkill_set_sw_state(asus
->uwb
.rfkill
, bl
);
1897 static const struct dev_pm_ops asus_pm_ops
= {
1898 .thaw
= asus_hotk_thaw
,
1899 .restore
= asus_hotk_restore
,
1902 static int asus_wmi_probe(struct platform_device
*pdev
)
1904 struct platform_driver
*pdrv
= to_platform_driver(pdev
->dev
.driver
);
1905 struct asus_wmi_driver
*wdrv
= to_asus_wmi_driver(pdrv
);
1908 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID
)) {
1909 pr_warn("Management GUID not found\n");
1913 if (wdrv
->event_guid
&& !wmi_has_guid(wdrv
->event_guid
)) {
1914 pr_warn("Event GUID not found\n");
1919 ret
= wdrv
->probe(pdev
);
1924 return asus_wmi_add(pdev
);
1929 int __init_or_module
asus_wmi_register_driver(struct asus_wmi_driver
*driver
)
1931 struct platform_driver
*platform_driver
;
1932 struct platform_device
*platform_device
;
1937 platform_driver
= &driver
->platform_driver
;
1938 platform_driver
->remove
= asus_wmi_remove
;
1939 platform_driver
->driver
.owner
= driver
->owner
;
1940 platform_driver
->driver
.name
= driver
->name
;
1941 platform_driver
->driver
.pm
= &asus_pm_ops
;
1943 platform_device
= platform_create_bundle(platform_driver
,
1946 if (IS_ERR(platform_device
))
1947 return PTR_ERR(platform_device
);
1952 EXPORT_SYMBOL_GPL(asus_wmi_register_driver
);
1954 void asus_wmi_unregister_driver(struct asus_wmi_driver
*driver
)
1956 platform_device_unregister(driver
->platform_device
);
1957 platform_driver_unregister(&driver
->platform_driver
);
1960 EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver
);
1962 static int __init
asus_wmi_init(void)
1964 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID
)) {
1965 pr_info("Asus Management GUID not found\n");
1969 pr_info("ASUS WMI generic driver loaded\n");
1973 static void __exit
asus_wmi_exit(void)
1975 pr_info("ASUS WMI generic driver unloaded\n");
1978 module_init(asus_wmi_init
);
1979 module_exit(asus_wmi_exit
);