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_BIOS_QUERY 0x9
57 #define HPWMI_FEATURE_QUERY 0xb
58 #define HPWMI_HOTKEY_QUERY 0xc
59 #define HPWMI_FEATURE2_QUERY 0xd
60 #define HPWMI_WIRELESS2_QUERY 0x1b
61 #define HPWMI_POSTCODEERROR_QUERY 0x2a
70 enum hp_wmi_event_ids {
73 HPWMI_SMART_ADAPTER = 3,
74 HPWMI_BEZEL_BUTTON = 4,
76 HPWMI_CPU_BATTERY_THROTTLE = 6,
77 HPWMI_LOCK_SWITCH = 7,
79 HPWMI_SCREEN_ROTATION = 9,
80 HPWMI_COOLSENSE_SYSTEM_MOBILE = 0x0A,
81 HPWMI_COOLSENSE_SYSTEM_HOT = 0x0B,
82 HPWMI_PROXIMITY_SENSOR = 0x0C,
83 HPWMI_BACKLIT_KB_BRIGHTNESS = 0x0D,
84 HPWMI_PEAKSHIFT_PERIOD = 0x0F,
85 HPWMI_BATTERY_CHARGE_PERIOD = 0x10,
101 enum hp_return_value {
102 HPWMI_RET_WRONG_SIGNATURE = 0x02,
103 HPWMI_RET_UNKNOWN_COMMAND = 0x03,
104 HPWMI_RET_UNKNOWN_CMDTYPE = 0x04,
105 HPWMI_RET_INVALID_PARAMETERS = 0x05,
108 enum hp_wireless2_bits {
109 HPWMI_POWER_STATE = 0x01,
110 HPWMI_POWER_SOFT = 0x02,
111 HPWMI_POWER_BIOS = 0x04,
112 HPWMI_POWER_HARD = 0x08,
115 #define IS_HWBLOCKED(x) ((x & (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) \
116 != (HPWMI_POWER_BIOS | HPWMI_POWER_HARD))
117 #define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT)
119 struct bios_rfkill2_device_state {
124 u16 subsys_vendor_id;
125 u16 subsys_product_id;
131 /* 7 devices fit into the 128 byte buffer */
132 #define HPWMI_MAX_RFKILL2_DEVICES 7
134 struct bios_rfkill2_state {
138 struct bios_rfkill2_device_state device[HPWMI_MAX_RFKILL2_DEVICES];
141 static const struct key_entry hp_wmi_keymap[] = {
142 { KE_KEY, 0x02, { KEY_BRIGHTNESSUP } },
143 { KE_KEY, 0x03, { KEY_BRIGHTNESSDOWN } },
144 { KE_KEY, 0x20e6, { KEY_PROG1 } },
145 { KE_KEY, 0x20e8, { KEY_MEDIA } },
146 { KE_KEY, 0x2142, { KEY_MEDIA } },
147 { KE_KEY, 0x213b, { KEY_INFO } },
148 { KE_KEY, 0x2169, { KEY_ROTATE_DISPLAY } },
149 { KE_KEY, 0x216a, { KEY_SETUP } },
150 { KE_KEY, 0x231b, { KEY_HELP } },
154 static struct input_dev *hp_wmi_input_dev;
155 static struct platform_device *hp_wmi_platform_dev;
157 static struct rfkill *wifi_rfkill;
158 static struct rfkill *bluetooth_rfkill;
159 static struct rfkill *wwan_rfkill;
161 struct rfkill2_device {
164 struct rfkill *rfkill;
167 static int rfkill2_count;
168 static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES];
171 * hp_wmi_perform_query
173 * query: The commandtype -> What should be queried
174 * write: The command -> 0 read, 1 write, 3 ODM specific
175 * buffer: Buffer used as input and/or output
176 * insize: Size of input buffer
177 * outsize: Size of output buffer
179 * returns zero on success
180 * an HP WMI query specific error code (which is positive)
181 * -EINVAL if the query was not successful at all
182 * -EINVAL if the output buffer size exceeds buffersize
184 * Note: The buffersize must at least be the maximum of the input and output
185 * size. E.g. Battery info query (0x7) is defined to have 1 byte input
186 * and 128 byte output. The caller would do:
187 * buffer = kzalloc(128, GFP_KERNEL);
188 * ret = hp_wmi_perform_query(0x7, 0, buffer, 1, 128)
190 static int hp_wmi_perform_query(int query, int write, void *buffer,
191 int insize, int outsize)
193 struct bios_return *bios_return;
195 union acpi_object *obj;
196 struct bios_args args = {
197 .signature = 0x55434553,
198 .command = write ? 0x2 : 0x1,
199 .commandtype = query,
203 struct acpi_buffer input = { sizeof(struct bios_args), &args };
204 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
207 if (WARN_ON(insize > sizeof(args.data)))
209 memcpy(&args.data, buffer, insize);
211 wmi_evaluate_method(HPWMI_BIOS_GUID, 0, 0x3, &input, &output);
213 obj = output.pointer;
217 else if (obj->type != ACPI_TYPE_BUFFER) {
222 bios_return = (struct bios_return *)obj->buffer.pointer;
223 rc = bios_return->return_code;
226 if (rc != HPWMI_RET_UNKNOWN_CMDTYPE)
227 pr_warn("query 0x%x returned error 0x%x\n", query, rc);
233 /* ignore output data */
238 actual_outsize = min(outsize, (int)(obj->buffer.length - sizeof(*bios_return)));
239 memcpy(buffer, obj->buffer.pointer + sizeof(*bios_return), actual_outsize);
240 memset(buffer + actual_outsize, 0, outsize - actual_outsize);
245 static int hp_wmi_display_state(void)
248 int ret = hp_wmi_perform_query(HPWMI_DISPLAY_QUERY, 0, &state,
249 sizeof(state), sizeof(state));
255 static int hp_wmi_hddtemp_state(void)
258 int ret = hp_wmi_perform_query(HPWMI_HDDTEMP_QUERY, 0, &state,
259 sizeof(state), sizeof(state));
265 static int hp_wmi_als_state(void)
268 int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 0, &state,
269 sizeof(state), sizeof(state));
275 static int hp_wmi_dock_state(void)
278 int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state,
279 sizeof(state), sizeof(state));
287 static int hp_wmi_tablet_state(void)
290 int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state,
291 sizeof(state), sizeof(state));
295 return (state & 0x4) ? 1 : 0;
298 static int __init hp_wmi_bios_2008_later(void)
301 int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, 0, &state,
302 sizeof(state), sizeof(state));
306 return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO;
309 static int __init hp_wmi_bios_2009_later(void)
312 int ret = hp_wmi_perform_query(HPWMI_FEATURE2_QUERY, 0, &state,
313 sizeof(state), sizeof(state));
317 return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO;
320 static int __init hp_wmi_enable_hotkeys(void)
323 int ret = hp_wmi_perform_query(HPWMI_BIOS_QUERY, 1, &value,
330 static int hp_wmi_set_block(void *data, bool blocked)
332 enum hp_wmi_radio r = (enum hp_wmi_radio) data;
333 int query = BIT(r + 8) | ((!blocked) << r);
336 ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1,
337 &query, sizeof(query), 0);
343 static const struct rfkill_ops hp_wmi_rfkill_ops = {
344 .set_block = hp_wmi_set_block,
347 static bool hp_wmi_get_sw_state(enum hp_wmi_radio r)
351 hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0,
352 &wireless, sizeof(wireless),
354 /* TBD: Pass error */
356 mask = 0x200 << (r * 8);
364 static bool hp_wmi_get_hw_state(enum hp_wmi_radio r)
368 hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0,
369 &wireless, sizeof(wireless),
371 /* TBD: Pass error */
373 mask = 0x800 << (r * 8);
381 static int hp_wmi_rfkill2_set_block(void *data, bool blocked)
383 int rfkill_id = (int)(long)data;
384 char buffer[4] = { 0x01, 0x00, rfkill_id, !blocked };
386 if (hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 1,
387 buffer, sizeof(buffer), 0))
392 static const struct rfkill_ops hp_wmi_rfkill2_ops = {
393 .set_block = hp_wmi_rfkill2_set_block,
396 static int hp_wmi_rfkill2_refresh(void)
399 struct bios_rfkill2_state state;
401 err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state,
406 for (i = 0; i < rfkill2_count; i++) {
407 int num = rfkill2[i].num;
408 struct bios_rfkill2_device_state *devstate;
409 devstate = &state.device[num];
411 if (num >= state.count ||
412 devstate->rfkill_id != rfkill2[i].id) {
413 pr_warn("power configuration of the wireless devices unexpectedly changed\n");
417 rfkill_set_states(rfkill2[i].rfkill,
418 IS_SWBLOCKED(devstate->power),
419 IS_HWBLOCKED(devstate->power));
425 static int hp_wmi_post_code_state(void)
428 int ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, 0, &state,
429 sizeof(state), sizeof(state));
435 static ssize_t show_display(struct device *dev, struct device_attribute *attr,
438 int value = hp_wmi_display_state();
441 return sprintf(buf, "%d\n", value);
444 static ssize_t show_hddtemp(struct device *dev, struct device_attribute *attr,
447 int value = hp_wmi_hddtemp_state();
450 return sprintf(buf, "%d\n", value);
453 static ssize_t show_als(struct device *dev, struct device_attribute *attr,
456 int value = hp_wmi_als_state();
459 return sprintf(buf, "%d\n", value);
462 static ssize_t show_dock(struct device *dev, struct device_attribute *attr,
465 int value = hp_wmi_dock_state();
468 return sprintf(buf, "%d\n", value);
471 static ssize_t show_tablet(struct device *dev, struct device_attribute *attr,
474 int value = hp_wmi_tablet_state();
477 return sprintf(buf, "%d\n", value);
480 static ssize_t show_postcode(struct device *dev, struct device_attribute *attr,
483 /* Get the POST error code of previous boot failure. */
484 int value = hp_wmi_post_code_state();
487 return sprintf(buf, "0x%x\n", value);
490 static ssize_t set_als(struct device *dev, struct device_attribute *attr,
491 const char *buf, size_t count)
493 u32 tmp = simple_strtoul(buf, NULL, 10);
494 int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 1, &tmp,
495 sizeof(tmp), sizeof(tmp));
502 static ssize_t set_postcode(struct device *dev, struct device_attribute *attr,
503 const char *buf, size_t count)
507 long unsigned int tmp2;
509 ret = kstrtoul(buf, 10, &tmp2);
510 if (ret || tmp2 != 1)
513 /* Clear the POST error code. It is kept until until cleared. */
515 ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, 1, &tmp,
516 sizeof(tmp), sizeof(tmp));
523 static DEVICE_ATTR(display, S_IRUGO, show_display, NULL);
524 static DEVICE_ATTR(hddtemp, S_IRUGO, show_hddtemp, NULL);
525 static DEVICE_ATTR(als, S_IRUGO | S_IWUSR, show_als, set_als);
526 static DEVICE_ATTR(dock, S_IRUGO, show_dock, NULL);
527 static DEVICE_ATTR(tablet, S_IRUGO, show_tablet, NULL);
528 static DEVICE_ATTR(postcode, S_IRUGO | S_IWUSR, show_postcode, set_postcode);
530 static void hp_wmi_notify(u32 value, void *context)
532 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
533 union acpi_object *obj;
534 u32 event_id, event_data;
535 int key_code = 0, ret;
539 status = wmi_get_event_data(value, &response);
540 if (status != AE_OK) {
541 pr_info("bad event status 0x%x\n", status);
545 obj = (union acpi_object *)response.pointer;
549 if (obj->type != ACPI_TYPE_BUFFER) {
550 pr_info("Unknown response received %d\n", obj->type);
556 * Depending on ACPI version the concatenation of id and event data
557 * inside _WED function will result in a 8 or 16 byte buffer.
559 location = (u32 *)obj->buffer.pointer;
560 if (obj->buffer.length == 8) {
561 event_id = *location;
562 event_data = *(location + 1);
563 } else if (obj->buffer.length == 16) {
564 event_id = *location;
565 event_data = *(location + 2);
567 pr_info("Unknown buffer length %d\n", obj->buffer.length);
574 case HPWMI_DOCK_EVENT:
575 if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit))
576 input_report_switch(hp_wmi_input_dev, SW_DOCK,
577 hp_wmi_dock_state());
578 if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit))
579 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
580 hp_wmi_tablet_state());
581 input_sync(hp_wmi_input_dev);
585 case HPWMI_SMART_ADAPTER:
587 case HPWMI_BEZEL_BUTTON:
588 ret = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0,
595 if (!sparse_keymap_report_event(hp_wmi_input_dev,
597 pr_info("Unknown key code - 0x%x\n", key_code);
601 hp_wmi_rfkill2_refresh();
606 rfkill_set_states(wifi_rfkill,
607 hp_wmi_get_sw_state(HPWMI_WIFI),
608 hp_wmi_get_hw_state(HPWMI_WIFI));
609 if (bluetooth_rfkill)
610 rfkill_set_states(bluetooth_rfkill,
611 hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
612 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
614 rfkill_set_states(wwan_rfkill,
615 hp_wmi_get_sw_state(HPWMI_WWAN),
616 hp_wmi_get_hw_state(HPWMI_WWAN));
618 case HPWMI_CPU_BATTERY_THROTTLE:
619 pr_info("Unimplemented CPU throttle because of 3 Cell battery event detected\n");
621 case HPWMI_LOCK_SWITCH:
623 case HPWMI_LID_SWITCH:
625 case HPWMI_SCREEN_ROTATION:
627 case HPWMI_COOLSENSE_SYSTEM_MOBILE:
629 case HPWMI_COOLSENSE_SYSTEM_HOT:
631 case HPWMI_PROXIMITY_SENSOR:
633 case HPWMI_BACKLIT_KB_BRIGHTNESS:
635 case HPWMI_PEAKSHIFT_PERIOD:
637 case HPWMI_BATTERY_CHARGE_PERIOD:
640 pr_info("Unknown event_id - %d - 0x%x\n", event_id, event_data);
645 static int __init hp_wmi_input_setup(void)
651 hp_wmi_input_dev = input_allocate_device();
652 if (!hp_wmi_input_dev)
655 hp_wmi_input_dev->name = "HP WMI hotkeys";
656 hp_wmi_input_dev->phys = "wmi/input0";
657 hp_wmi_input_dev->id.bustype = BUS_HOST;
659 __set_bit(EV_SW, hp_wmi_input_dev->evbit);
662 val = hp_wmi_dock_state();
664 __set_bit(SW_DOCK, hp_wmi_input_dev->swbit);
665 input_report_switch(hp_wmi_input_dev, SW_DOCK, val);
669 val = hp_wmi_tablet_state();
671 __set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit);
672 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, val);
675 err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL);
679 /* Set initial hardware state */
680 input_sync(hp_wmi_input_dev);
682 if (!hp_wmi_bios_2009_later() && hp_wmi_bios_2008_later())
683 hp_wmi_enable_hotkeys();
685 status = wmi_install_notify_handler(HPWMI_EVENT_GUID, hp_wmi_notify, NULL);
686 if (ACPI_FAILURE(status)) {
691 err = input_register_device(hp_wmi_input_dev);
693 goto err_uninstall_notifier;
697 err_uninstall_notifier:
698 wmi_remove_notify_handler(HPWMI_EVENT_GUID);
700 input_free_device(hp_wmi_input_dev);
704 static void hp_wmi_input_destroy(void)
706 wmi_remove_notify_handler(HPWMI_EVENT_GUID);
707 input_unregister_device(hp_wmi_input_dev);
710 static void cleanup_sysfs(struct platform_device *device)
712 device_remove_file(&device->dev, &dev_attr_display);
713 device_remove_file(&device->dev, &dev_attr_hddtemp);
714 device_remove_file(&device->dev, &dev_attr_als);
715 device_remove_file(&device->dev, &dev_attr_dock);
716 device_remove_file(&device->dev, &dev_attr_tablet);
717 device_remove_file(&device->dev, &dev_attr_postcode);
720 static int __init hp_wmi_rfkill_setup(struct platform_device *device)
725 err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, &wireless,
726 sizeof(wireless), sizeof(wireless));
730 err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, &wireless,
731 sizeof(wireless), 0);
735 if (wireless & 0x1) {
736 wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev,
739 (void *) HPWMI_WIFI);
742 rfkill_init_sw_state(wifi_rfkill,
743 hp_wmi_get_sw_state(HPWMI_WIFI));
744 rfkill_set_hw_state(wifi_rfkill,
745 hp_wmi_get_hw_state(HPWMI_WIFI));
746 err = rfkill_register(wifi_rfkill);
748 goto register_wifi_error;
751 if (wireless & 0x2) {
752 bluetooth_rfkill = rfkill_alloc("hp-bluetooth", &device->dev,
753 RFKILL_TYPE_BLUETOOTH,
755 (void *) HPWMI_BLUETOOTH);
756 if (!bluetooth_rfkill) {
758 goto register_bluetooth_error;
760 rfkill_init_sw_state(bluetooth_rfkill,
761 hp_wmi_get_sw_state(HPWMI_BLUETOOTH));
762 rfkill_set_hw_state(bluetooth_rfkill,
763 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
764 err = rfkill_register(bluetooth_rfkill);
766 goto register_bluetooth_error;
769 if (wireless & 0x4) {
770 wwan_rfkill = rfkill_alloc("hp-wwan", &device->dev,
773 (void *) HPWMI_WWAN);
776 goto register_wwan_error;
778 rfkill_init_sw_state(wwan_rfkill,
779 hp_wmi_get_sw_state(HPWMI_WWAN));
780 rfkill_set_hw_state(wwan_rfkill,
781 hp_wmi_get_hw_state(HPWMI_WWAN));
782 err = rfkill_register(wwan_rfkill);
784 goto register_wwan_error;
790 rfkill_destroy(wwan_rfkill);
792 if (bluetooth_rfkill)
793 rfkill_unregister(bluetooth_rfkill);
794 register_bluetooth_error:
795 rfkill_destroy(bluetooth_rfkill);
796 bluetooth_rfkill = NULL;
798 rfkill_unregister(wifi_rfkill);
800 rfkill_destroy(wifi_rfkill);
805 static int __init hp_wmi_rfkill2_setup(struct platform_device *device)
808 struct bios_rfkill2_state state;
809 err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state,
814 if (state.count > HPWMI_MAX_RFKILL2_DEVICES) {
815 pr_warn("unable to parse 0x1b query output\n");
819 for (i = 0; i < state.count; i++) {
820 struct rfkill *rfkill;
821 enum rfkill_type type;
823 switch (state.device[i].radio_type) {
825 type = RFKILL_TYPE_WLAN;
828 case HPWMI_BLUETOOTH:
829 type = RFKILL_TYPE_BLUETOOTH;
830 name = "hp-bluetooth";
833 type = RFKILL_TYPE_WWAN;
837 type = RFKILL_TYPE_GPS;
841 pr_warn("unknown device type 0x%x\n",
842 state.device[i].radio_type);
846 if (!state.device[i].vendor_id) {
847 pr_warn("zero device %d while %d reported\n",
852 rfkill = rfkill_alloc(name, &device->dev, type,
853 &hp_wmi_rfkill2_ops, (void *)(long)i);
859 rfkill2[rfkill2_count].id = state.device[i].rfkill_id;
860 rfkill2[rfkill2_count].num = i;
861 rfkill2[rfkill2_count].rfkill = rfkill;
863 rfkill_init_sw_state(rfkill,
864 IS_SWBLOCKED(state.device[i].power));
865 rfkill_set_hw_state(rfkill,
866 IS_HWBLOCKED(state.device[i].power));
868 if (!(state.device[i].power & HPWMI_POWER_BIOS))
869 pr_info("device %s blocked by BIOS\n", name);
871 err = rfkill_register(rfkill);
873 rfkill_destroy(rfkill);
882 for (; rfkill2_count > 0; rfkill2_count--) {
883 rfkill_unregister(rfkill2[rfkill2_count - 1].rfkill);
884 rfkill_destroy(rfkill2[rfkill2_count - 1].rfkill);
889 static int __init hp_wmi_bios_setup(struct platform_device *device)
893 /* clear detected rfkill devices */
895 bluetooth_rfkill = NULL;
899 if (hp_wmi_rfkill_setup(device))
900 hp_wmi_rfkill2_setup(device);
902 err = device_create_file(&device->dev, &dev_attr_display);
904 goto add_sysfs_error;
905 err = device_create_file(&device->dev, &dev_attr_hddtemp);
907 goto add_sysfs_error;
908 err = device_create_file(&device->dev, &dev_attr_als);
910 goto add_sysfs_error;
911 err = device_create_file(&device->dev, &dev_attr_dock);
913 goto add_sysfs_error;
914 err = device_create_file(&device->dev, &dev_attr_tablet);
916 goto add_sysfs_error;
917 err = device_create_file(&device->dev, &dev_attr_postcode);
919 goto add_sysfs_error;
923 cleanup_sysfs(device);
927 static int __exit hp_wmi_bios_remove(struct platform_device *device)
930 cleanup_sysfs(device);
932 for (i = 0; i < rfkill2_count; i++) {
933 rfkill_unregister(rfkill2[i].rfkill);
934 rfkill_destroy(rfkill2[i].rfkill);
938 rfkill_unregister(wifi_rfkill);
939 rfkill_destroy(wifi_rfkill);
941 if (bluetooth_rfkill) {
942 rfkill_unregister(bluetooth_rfkill);
943 rfkill_destroy(bluetooth_rfkill);
946 rfkill_unregister(wwan_rfkill);
947 rfkill_destroy(wwan_rfkill);
953 static int hp_wmi_resume_handler(struct device *device)
956 * Hardware state may have changed while suspended, so trigger
957 * input events for the current state. As this is a switch,
958 * the input layer will only actually pass it on if the state
961 if (hp_wmi_input_dev) {
962 if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit))
963 input_report_switch(hp_wmi_input_dev, SW_DOCK,
964 hp_wmi_dock_state());
965 if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit))
966 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
967 hp_wmi_tablet_state());
968 input_sync(hp_wmi_input_dev);
972 hp_wmi_rfkill2_refresh();
975 rfkill_set_states(wifi_rfkill,
976 hp_wmi_get_sw_state(HPWMI_WIFI),
977 hp_wmi_get_hw_state(HPWMI_WIFI));
978 if (bluetooth_rfkill)
979 rfkill_set_states(bluetooth_rfkill,
980 hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
981 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
983 rfkill_set_states(wwan_rfkill,
984 hp_wmi_get_sw_state(HPWMI_WWAN),
985 hp_wmi_get_hw_state(HPWMI_WWAN));
990 static const struct dev_pm_ops hp_wmi_pm_ops = {
991 .resume = hp_wmi_resume_handler,
992 .restore = hp_wmi_resume_handler,
995 static struct platform_driver hp_wmi_driver = {
998 .pm = &hp_wmi_pm_ops,
1000 .remove = __exit_p(hp_wmi_bios_remove),
1003 static int __init hp_wmi_init(void)
1006 int event_capable = wmi_has_guid(HPWMI_EVENT_GUID);
1007 int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID);
1009 if (!bios_capable && !event_capable)
1012 if (event_capable) {
1013 err = hp_wmi_input_setup();
1019 hp_wmi_platform_dev =
1020 platform_device_register_simple("hp-wmi", -1, NULL, 0);
1021 if (IS_ERR(hp_wmi_platform_dev)) {
1022 err = PTR_ERR(hp_wmi_platform_dev);
1023 goto err_destroy_input;
1026 err = platform_driver_probe(&hp_wmi_driver, hp_wmi_bios_setup);
1028 goto err_unregister_device;
1033 err_unregister_device:
1034 platform_device_unregister(hp_wmi_platform_dev);
1037 hp_wmi_input_destroy();
1041 module_init(hp_wmi_init);
1043 static void __exit hp_wmi_exit(void)
1045 if (wmi_has_guid(HPWMI_EVENT_GUID))
1046 hp_wmi_input_destroy();
1048 if (hp_wmi_platform_dev) {
1049 platform_device_unregister(hp_wmi_platform_dev);
1050 platform_driver_unregister(&hp_wmi_driver);
1053 module_exit(hp_wmi_exit);