4 * Copyright (C) 2008 Red Hat <mjg@redhat.com>
5 * Copyright (C) 2010, 2011 Anssi Hannula <anssi.hannula@iki.fi>
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/slab.h>
33 #include <linux/types.h>
34 #include <linux/input.h>
35 #include <linux/input/sparse-keymap.h>
36 #include <linux/platform_device.h>
37 #include <linux/acpi.h>
38 #include <linux/rfkill.h>
39 #include <linux/string.h>
41 MODULE_AUTHOR("Matthew Garrett <mjg59@srcf.ucam.org>");
42 MODULE_DESCRIPTION("HP laptop WMI hotkeys driver");
43 MODULE_LICENSE("GPL");
45 MODULE_ALIAS("wmi:95F24279-4D7B-4334-9387-ACCDC67EF61C");
46 MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4");
48 #define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C"
49 #define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4"
51 #define HPWMI_DISPLAY_QUERY 0x1
52 #define HPWMI_HDDTEMP_QUERY 0x2
53 #define HPWMI_ALS_QUERY 0x3
54 #define HPWMI_HARDWARE_QUERY 0x4
55 #define HPWMI_WIRELESS_QUERY 0x5
56 #define HPWMI_HOTKEY_QUERY 0xc
57 #define HPWMI_WIRELESS2_QUERY 0x1b
65 enum hp_wmi_event_ids
{
68 HPWMI_SMART_ADAPTER
= 3,
69 HPWMI_BEZEL_BUTTON
= 4,
71 HPWMI_CPU_BATTERY_THROTTLE
= 6,
72 HPWMI_LOCK_SWITCH
= 7,
75 static int hp_wmi_bios_setup(struct platform_device
*device
);
76 static int __exit
hp_wmi_bios_remove(struct platform_device
*device
);
77 static int hp_wmi_resume_handler(struct device
*device
);
92 enum hp_return_value
{
93 HPWMI_RET_WRONG_SIGNATURE
= 0x02,
94 HPWMI_RET_UNKNOWN_COMMAND
= 0x03,
95 HPWMI_RET_UNKNOWN_CMDTYPE
= 0x04,
96 HPWMI_RET_INVALID_PARAMETERS
= 0x05,
99 enum hp_wireless2_bits
{
100 HPWMI_POWER_STATE
= 0x01,
101 HPWMI_POWER_SOFT
= 0x02,
102 HPWMI_POWER_BIOS
= 0x04,
103 HPWMI_POWER_HARD
= 0x08,
106 #define IS_HWBLOCKED(x) ((x & (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) \
107 != (HPWMI_POWER_BIOS | HPWMI_POWER_HARD))
108 #define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT)
110 struct bios_rfkill2_device_state
{
115 u16 subsys_vendor_id
;
116 u16 subsys_product_id
;
122 /* 7 devices fit into the 128 byte buffer */
123 #define HPWMI_MAX_RFKILL2_DEVICES 7
125 struct bios_rfkill2_state
{
129 struct bios_rfkill2_device_state device
[HPWMI_MAX_RFKILL2_DEVICES
];
132 static const struct key_entry hp_wmi_keymap
[] = {
133 { KE_KEY
, 0x02, { KEY_BRIGHTNESSUP
} },
134 { KE_KEY
, 0x03, { KEY_BRIGHTNESSDOWN
} },
135 { KE_KEY
, 0x20e6, { KEY_PROG1
} },
136 { KE_KEY
, 0x20e8, { KEY_MEDIA
} },
137 { KE_KEY
, 0x2142, { KEY_MEDIA
} },
138 { KE_KEY
, 0x213b, { KEY_INFO
} },
139 { KE_KEY
, 0x2169, { KEY_DIRECTION
} },
140 { KE_KEY
, 0x231b, { KEY_HELP
} },
144 static struct input_dev
*hp_wmi_input_dev
;
145 static struct platform_device
*hp_wmi_platform_dev
;
147 static struct rfkill
*wifi_rfkill
;
148 static struct rfkill
*bluetooth_rfkill
;
149 static struct rfkill
*wwan_rfkill
;
151 struct rfkill2_device
{
154 struct rfkill
*rfkill
;
157 static int rfkill2_count
;
158 static struct rfkill2_device rfkill2
[HPWMI_MAX_RFKILL2_DEVICES
];
160 static const struct dev_pm_ops hp_wmi_pm_ops
= {
161 .resume
= hp_wmi_resume_handler
,
162 .restore
= hp_wmi_resume_handler
,
165 static struct platform_driver hp_wmi_driver
= {
168 .owner
= THIS_MODULE
,
169 .pm
= &hp_wmi_pm_ops
,
171 .probe
= hp_wmi_bios_setup
,
172 .remove
= hp_wmi_bios_remove
,
176 * hp_wmi_perform_query
178 * query: The commandtype -> What should be queried
179 * write: The command -> 0 read, 1 write, 3 ODM specific
180 * buffer: Buffer used as input and/or output
181 * insize: Size of input buffer
182 * outsize: Size of output buffer
184 * returns zero on success
185 * an HP WMI query specific error code (which is positive)
186 * -EINVAL if the query was not successful at all
187 * -EINVAL if the output buffer size exceeds buffersize
189 * Note: The buffersize must at least be the maximum of the input and output
190 * size. E.g. Battery info query (0x7) is defined to have 1 byte input
191 * and 128 byte output. The caller would do:
192 * buffer = kzalloc(128, GFP_KERNEL);
193 * ret = hp_wmi_perform_query(0x7, 0, buffer, 1, 128)
195 static int hp_wmi_perform_query(int query
, int write
, void *buffer
,
196 int insize
, int outsize
)
198 struct bios_return
*bios_return
;
200 union acpi_object
*obj
;
201 struct bios_args args
= {
202 .signature
= 0x55434553,
203 .command
= write
? 0x2 : 0x1,
204 .commandtype
= query
,
208 struct acpi_buffer input
= { sizeof(struct bios_args
), &args
};
209 struct acpi_buffer output
= { ACPI_ALLOCATE_BUFFER
, NULL
};
212 if (WARN_ON(insize
> sizeof(args
.data
)))
214 memcpy(&args
.data
, buffer
, insize
);
216 wmi_evaluate_method(HPWMI_BIOS_GUID
, 0, 0x3, &input
, &output
);
218 obj
= output
.pointer
;
222 else if (obj
->type
!= ACPI_TYPE_BUFFER
) {
227 bios_return
= (struct bios_return
*)obj
->buffer
.pointer
;
228 rc
= bios_return
->return_code
;
231 if (rc
!= HPWMI_RET_UNKNOWN_CMDTYPE
)
232 pr_warn("query 0x%x returned error 0x%x\n", query
, rc
);
238 /* ignore output data */
243 actual_outsize
= min(outsize
, (int)(obj
->buffer
.length
- sizeof(*bios_return
)));
244 memcpy(buffer
, obj
->buffer
.pointer
+ sizeof(*bios_return
), actual_outsize
);
245 memset(buffer
+ actual_outsize
, 0, outsize
- actual_outsize
);
250 static int hp_wmi_display_state(void)
253 int ret
= hp_wmi_perform_query(HPWMI_DISPLAY_QUERY
, 0, &state
,
254 sizeof(state
), sizeof(state
));
260 static int hp_wmi_hddtemp_state(void)
263 int ret
= hp_wmi_perform_query(HPWMI_HDDTEMP_QUERY
, 0, &state
,
264 sizeof(state
), sizeof(state
));
270 static int hp_wmi_als_state(void)
273 int ret
= hp_wmi_perform_query(HPWMI_ALS_QUERY
, 0, &state
,
274 sizeof(state
), sizeof(state
));
280 static int hp_wmi_dock_state(void)
283 int ret
= hp_wmi_perform_query(HPWMI_HARDWARE_QUERY
, 0, &state
,
284 sizeof(state
), sizeof(state
));
292 static int hp_wmi_tablet_state(void)
295 int ret
= hp_wmi_perform_query(HPWMI_HARDWARE_QUERY
, 0, &state
,
296 sizeof(state
), sizeof(state
));
300 return (state
& 0x4) ? 1 : 0;
303 static int hp_wmi_set_block(void *data
, bool blocked
)
305 enum hp_wmi_radio r
= (enum hp_wmi_radio
) data
;
306 int query
= BIT(r
+ 8) | ((!blocked
) << r
);
309 ret
= hp_wmi_perform_query(HPWMI_WIRELESS_QUERY
, 1,
310 &query
, sizeof(query
), 0);
316 static const struct rfkill_ops hp_wmi_rfkill_ops
= {
317 .set_block
= hp_wmi_set_block
,
320 static bool hp_wmi_get_sw_state(enum hp_wmi_radio r
)
324 hp_wmi_perform_query(HPWMI_WIRELESS_QUERY
, 0,
325 &wireless
, sizeof(wireless
),
327 /* TBD: Pass error */
329 mask
= 0x200 << (r
* 8);
337 static bool hp_wmi_get_hw_state(enum hp_wmi_radio r
)
341 hp_wmi_perform_query(HPWMI_WIRELESS_QUERY
, 0,
342 &wireless
, sizeof(wireless
),
344 /* TBD: Pass error */
346 mask
= 0x800 << (r
* 8);
354 static int hp_wmi_rfkill2_set_block(void *data
, bool blocked
)
356 int rfkill_id
= (int)(long)data
;
357 char buffer
[4] = { 0x01, 0x00, rfkill_id
, !blocked
};
359 if (hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY
, 1,
360 buffer
, sizeof(buffer
), 0))
365 static const struct rfkill_ops hp_wmi_rfkill2_ops
= {
366 .set_block
= hp_wmi_rfkill2_set_block
,
369 static int hp_wmi_rfkill2_refresh(void)
372 struct bios_rfkill2_state state
;
374 err
= hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY
, 0, &state
,
379 for (i
= 0; i
< rfkill2_count
; i
++) {
380 int num
= rfkill2
[i
].num
;
381 struct bios_rfkill2_device_state
*devstate
;
382 devstate
= &state
.device
[num
];
384 if (num
>= state
.count
||
385 devstate
->rfkill_id
!= rfkill2
[i
].id
) {
386 pr_warn("power configuration of the wireless devices unexpectedly changed\n");
390 rfkill_set_states(rfkill2
[i
].rfkill
,
391 IS_SWBLOCKED(devstate
->power
),
392 IS_HWBLOCKED(devstate
->power
));
398 static ssize_t
show_display(struct device
*dev
, struct device_attribute
*attr
,
401 int value
= hp_wmi_display_state();
404 return sprintf(buf
, "%d\n", value
);
407 static ssize_t
show_hddtemp(struct device
*dev
, struct device_attribute
*attr
,
410 int value
= hp_wmi_hddtemp_state();
413 return sprintf(buf
, "%d\n", value
);
416 static ssize_t
show_als(struct device
*dev
, struct device_attribute
*attr
,
419 int value
= hp_wmi_als_state();
422 return sprintf(buf
, "%d\n", value
);
425 static ssize_t
show_dock(struct device
*dev
, struct device_attribute
*attr
,
428 int value
= hp_wmi_dock_state();
431 return sprintf(buf
, "%d\n", value
);
434 static ssize_t
show_tablet(struct device
*dev
, struct device_attribute
*attr
,
437 int value
= hp_wmi_tablet_state();
440 return sprintf(buf
, "%d\n", value
);
443 static ssize_t
set_als(struct device
*dev
, struct device_attribute
*attr
,
444 const char *buf
, size_t count
)
446 u32 tmp
= simple_strtoul(buf
, NULL
, 10);
447 int ret
= hp_wmi_perform_query(HPWMI_ALS_QUERY
, 1, &tmp
,
448 sizeof(tmp
), sizeof(tmp
));
455 static DEVICE_ATTR(display
, S_IRUGO
, show_display
, NULL
);
456 static DEVICE_ATTR(hddtemp
, S_IRUGO
, show_hddtemp
, NULL
);
457 static DEVICE_ATTR(als
, S_IRUGO
| S_IWUSR
, show_als
, set_als
);
458 static DEVICE_ATTR(dock
, S_IRUGO
, show_dock
, NULL
);
459 static DEVICE_ATTR(tablet
, S_IRUGO
, show_tablet
, NULL
);
461 static void hp_wmi_notify(u32 value
, void *context
)
463 struct acpi_buffer response
= { ACPI_ALLOCATE_BUFFER
, NULL
};
464 union acpi_object
*obj
;
465 u32 event_id
, event_data
;
466 int key_code
= 0, ret
;
470 status
= wmi_get_event_data(value
, &response
);
471 if (status
!= AE_OK
) {
472 pr_info("bad event status 0x%x\n", status
);
476 obj
= (union acpi_object
*)response
.pointer
;
480 if (obj
->type
!= ACPI_TYPE_BUFFER
) {
481 pr_info("Unknown response received %d\n", obj
->type
);
487 * Depending on ACPI version the concatenation of id and event data
488 * inside _WED function will result in a 8 or 16 byte buffer.
490 location
= (u32
*)obj
->buffer
.pointer
;
491 if (obj
->buffer
.length
== 8) {
492 event_id
= *location
;
493 event_data
= *(location
+ 1);
494 } else if (obj
->buffer
.length
== 16) {
495 event_id
= *location
;
496 event_data
= *(location
+ 2);
498 pr_info("Unknown buffer length %d\n", obj
->buffer
.length
);
505 case HPWMI_DOCK_EVENT
:
506 input_report_switch(hp_wmi_input_dev
, SW_DOCK
,
507 hp_wmi_dock_state());
508 input_report_switch(hp_wmi_input_dev
, SW_TABLET_MODE
,
509 hp_wmi_tablet_state());
510 input_sync(hp_wmi_input_dev
);
514 case HPWMI_SMART_ADAPTER
:
516 case HPWMI_BEZEL_BUTTON
:
517 ret
= hp_wmi_perform_query(HPWMI_HOTKEY_QUERY
, 0,
524 if (!sparse_keymap_report_event(hp_wmi_input_dev
,
526 pr_info("Unknown key code - 0x%x\n", key_code
);
530 hp_wmi_rfkill2_refresh();
535 rfkill_set_states(wifi_rfkill
,
536 hp_wmi_get_sw_state(HPWMI_WIFI
),
537 hp_wmi_get_hw_state(HPWMI_WIFI
));
538 if (bluetooth_rfkill
)
539 rfkill_set_states(bluetooth_rfkill
,
540 hp_wmi_get_sw_state(HPWMI_BLUETOOTH
),
541 hp_wmi_get_hw_state(HPWMI_BLUETOOTH
));
543 rfkill_set_states(wwan_rfkill
,
544 hp_wmi_get_sw_state(HPWMI_WWAN
),
545 hp_wmi_get_hw_state(HPWMI_WWAN
));
547 case HPWMI_CPU_BATTERY_THROTTLE
:
548 pr_info("Unimplemented CPU throttle because of 3 Cell battery event detected\n");
550 case HPWMI_LOCK_SWITCH
:
553 pr_info("Unknown event_id - %d - 0x%x\n", event_id
, event_data
);
558 static int __init
hp_wmi_input_setup(void)
563 hp_wmi_input_dev
= input_allocate_device();
564 if (!hp_wmi_input_dev
)
567 hp_wmi_input_dev
->name
= "HP WMI hotkeys";
568 hp_wmi_input_dev
->phys
= "wmi/input0";
569 hp_wmi_input_dev
->id
.bustype
= BUS_HOST
;
571 __set_bit(EV_SW
, hp_wmi_input_dev
->evbit
);
572 __set_bit(SW_DOCK
, hp_wmi_input_dev
->swbit
);
573 __set_bit(SW_TABLET_MODE
, hp_wmi_input_dev
->swbit
);
575 err
= sparse_keymap_setup(hp_wmi_input_dev
, hp_wmi_keymap
, NULL
);
579 /* Set initial hardware state */
580 input_report_switch(hp_wmi_input_dev
, SW_DOCK
, hp_wmi_dock_state());
581 input_report_switch(hp_wmi_input_dev
, SW_TABLET_MODE
,
582 hp_wmi_tablet_state());
583 input_sync(hp_wmi_input_dev
);
585 status
= wmi_install_notify_handler(HPWMI_EVENT_GUID
, hp_wmi_notify
, NULL
);
586 if (ACPI_FAILURE(status
)) {
588 goto err_free_keymap
;
591 err
= input_register_device(hp_wmi_input_dev
);
593 goto err_uninstall_notifier
;
597 err_uninstall_notifier
:
598 wmi_remove_notify_handler(HPWMI_EVENT_GUID
);
600 sparse_keymap_free(hp_wmi_input_dev
);
602 input_free_device(hp_wmi_input_dev
);
606 static void hp_wmi_input_destroy(void)
608 wmi_remove_notify_handler(HPWMI_EVENT_GUID
);
609 sparse_keymap_free(hp_wmi_input_dev
);
610 input_unregister_device(hp_wmi_input_dev
);
613 static void cleanup_sysfs(struct platform_device
*device
)
615 device_remove_file(&device
->dev
, &dev_attr_display
);
616 device_remove_file(&device
->dev
, &dev_attr_hddtemp
);
617 device_remove_file(&device
->dev
, &dev_attr_als
);
618 device_remove_file(&device
->dev
, &dev_attr_dock
);
619 device_remove_file(&device
->dev
, &dev_attr_tablet
);
622 static int hp_wmi_rfkill_setup(struct platform_device
*device
)
627 err
= hp_wmi_perform_query(HPWMI_WIRELESS_QUERY
, 0, &wireless
,
628 sizeof(wireless
), sizeof(wireless
));
632 if (wireless
& 0x1) {
633 wifi_rfkill
= rfkill_alloc("hp-wifi", &device
->dev
,
636 (void *) HPWMI_WIFI
);
639 rfkill_init_sw_state(wifi_rfkill
,
640 hp_wmi_get_sw_state(HPWMI_WIFI
));
641 rfkill_set_hw_state(wifi_rfkill
,
642 hp_wmi_get_hw_state(HPWMI_WIFI
));
643 err
= rfkill_register(wifi_rfkill
);
645 goto register_wifi_error
;
648 if (wireless
& 0x2) {
649 bluetooth_rfkill
= rfkill_alloc("hp-bluetooth", &device
->dev
,
650 RFKILL_TYPE_BLUETOOTH
,
652 (void *) HPWMI_BLUETOOTH
);
653 if (!bluetooth_rfkill
) {
655 goto register_wifi_error
;
657 rfkill_init_sw_state(bluetooth_rfkill
,
658 hp_wmi_get_sw_state(HPWMI_BLUETOOTH
));
659 rfkill_set_hw_state(bluetooth_rfkill
,
660 hp_wmi_get_hw_state(HPWMI_BLUETOOTH
));
661 err
= rfkill_register(bluetooth_rfkill
);
663 goto register_bluetooth_error
;
666 if (wireless
& 0x4) {
667 wwan_rfkill
= rfkill_alloc("hp-wwan", &device
->dev
,
670 (void *) HPWMI_WWAN
);
673 goto register_bluetooth_error
;
675 rfkill_init_sw_state(wwan_rfkill
,
676 hp_wmi_get_sw_state(HPWMI_WWAN
));
677 rfkill_set_hw_state(wwan_rfkill
,
678 hp_wmi_get_hw_state(HPWMI_WWAN
));
679 err
= rfkill_register(wwan_rfkill
);
681 goto register_wwan_err
;
686 rfkill_destroy(wwan_rfkill
);
688 if (bluetooth_rfkill
)
689 rfkill_unregister(bluetooth_rfkill
);
690 register_bluetooth_error
:
691 rfkill_destroy(bluetooth_rfkill
);
692 bluetooth_rfkill
= NULL
;
694 rfkill_unregister(wifi_rfkill
);
696 rfkill_destroy(wifi_rfkill
);
701 static int hp_wmi_rfkill2_setup(struct platform_device
*device
)
704 struct bios_rfkill2_state state
;
705 err
= hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY
, 0, &state
,
710 if (state
.count
> HPWMI_MAX_RFKILL2_DEVICES
) {
711 pr_warn("unable to parse 0x1b query output\n");
715 for (i
= 0; i
< state
.count
; i
++) {
716 struct rfkill
*rfkill
;
717 enum rfkill_type type
;
719 switch (state
.device
[i
].radio_type
) {
721 type
= RFKILL_TYPE_WLAN
;
724 case HPWMI_BLUETOOTH
:
725 type
= RFKILL_TYPE_BLUETOOTH
;
726 name
= "hp-bluetooth";
729 type
= RFKILL_TYPE_WWAN
;
733 pr_warn("unknown device type 0x%x\n",
734 state
.device
[i
].radio_type
);
738 if (!state
.device
[i
].vendor_id
) {
739 pr_warn("zero device %d while %d reported\n",
744 rfkill
= rfkill_alloc(name
, &device
->dev
, type
,
745 &hp_wmi_rfkill2_ops
, (void *)(long)i
);
751 rfkill2
[rfkill2_count
].id
= state
.device
[i
].rfkill_id
;
752 rfkill2
[rfkill2_count
].num
= i
;
753 rfkill2
[rfkill2_count
].rfkill
= rfkill
;
755 rfkill_init_sw_state(rfkill
,
756 IS_SWBLOCKED(state
.device
[i
].power
));
757 rfkill_set_hw_state(rfkill
,
758 IS_HWBLOCKED(state
.device
[i
].power
));
760 if (!(state
.device
[i
].power
& HPWMI_POWER_BIOS
))
761 pr_info("device %s blocked by BIOS\n", name
);
763 err
= rfkill_register(rfkill
);
765 rfkill_destroy(rfkill
);
774 for (; rfkill2_count
> 0; rfkill2_count
--) {
775 rfkill_unregister(rfkill2
[rfkill2_count
- 1].rfkill
);
776 rfkill_destroy(rfkill2
[rfkill2_count
- 1].rfkill
);
781 static int hp_wmi_bios_setup(struct platform_device
*device
)
785 /* clear detected rfkill devices */
787 bluetooth_rfkill
= NULL
;
791 if (hp_wmi_rfkill_setup(device
))
792 hp_wmi_rfkill2_setup(device
);
794 err
= device_create_file(&device
->dev
, &dev_attr_display
);
796 goto add_sysfs_error
;
797 err
= device_create_file(&device
->dev
, &dev_attr_hddtemp
);
799 goto add_sysfs_error
;
800 err
= device_create_file(&device
->dev
, &dev_attr_als
);
802 goto add_sysfs_error
;
803 err
= device_create_file(&device
->dev
, &dev_attr_dock
);
805 goto add_sysfs_error
;
806 err
= device_create_file(&device
->dev
, &dev_attr_tablet
);
808 goto add_sysfs_error
;
812 cleanup_sysfs(device
);
816 static int __exit
hp_wmi_bios_remove(struct platform_device
*device
)
819 cleanup_sysfs(device
);
821 for (i
= 0; i
< rfkill2_count
; i
++) {
822 rfkill_unregister(rfkill2
[i
].rfkill
);
823 rfkill_destroy(rfkill2
[i
].rfkill
);
827 rfkill_unregister(wifi_rfkill
);
828 rfkill_destroy(wifi_rfkill
);
830 if (bluetooth_rfkill
) {
831 rfkill_unregister(bluetooth_rfkill
);
832 rfkill_destroy(bluetooth_rfkill
);
835 rfkill_unregister(wwan_rfkill
);
836 rfkill_destroy(wwan_rfkill
);
842 static int hp_wmi_resume_handler(struct device
*device
)
845 * Hardware state may have changed while suspended, so trigger
846 * input events for the current state. As this is a switch,
847 * the input layer will only actually pass it on if the state
850 if (hp_wmi_input_dev
) {
851 input_report_switch(hp_wmi_input_dev
, SW_DOCK
,
852 hp_wmi_dock_state());
853 input_report_switch(hp_wmi_input_dev
, SW_TABLET_MODE
,
854 hp_wmi_tablet_state());
855 input_sync(hp_wmi_input_dev
);
859 hp_wmi_rfkill2_refresh();
862 rfkill_set_states(wifi_rfkill
,
863 hp_wmi_get_sw_state(HPWMI_WIFI
),
864 hp_wmi_get_hw_state(HPWMI_WIFI
));
865 if (bluetooth_rfkill
)
866 rfkill_set_states(bluetooth_rfkill
,
867 hp_wmi_get_sw_state(HPWMI_BLUETOOTH
),
868 hp_wmi_get_hw_state(HPWMI_BLUETOOTH
));
870 rfkill_set_states(wwan_rfkill
,
871 hp_wmi_get_sw_state(HPWMI_WWAN
),
872 hp_wmi_get_hw_state(HPWMI_WWAN
));
877 static int __init
hp_wmi_init(void)
880 int event_capable
= wmi_has_guid(HPWMI_EVENT_GUID
);
881 int bios_capable
= wmi_has_guid(HPWMI_BIOS_GUID
);
884 err
= hp_wmi_input_setup();
890 err
= platform_driver_register(&hp_wmi_driver
);
893 hp_wmi_platform_dev
= platform_device_alloc("hp-wmi", -1);
894 if (!hp_wmi_platform_dev
) {
896 goto err_device_alloc
;
898 err
= platform_device_add(hp_wmi_platform_dev
);
903 if (!bios_capable
&& !event_capable
)
909 platform_device_put(hp_wmi_platform_dev
);
911 platform_driver_unregister(&hp_wmi_driver
);
914 hp_wmi_input_destroy();
919 static void __exit
hp_wmi_exit(void)
921 if (wmi_has_guid(HPWMI_EVENT_GUID
))
922 hp_wmi_input_destroy();
924 if (hp_wmi_platform_dev
) {
925 platform_device_unregister(hp_wmi_platform_dev
);
926 platform_driver_unregister(&hp_wmi_driver
);
930 module_init(hp_wmi_init
);
931 module_exit(hp_wmi_exit
);