7 * Portions based on wistron_btns.c:
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>
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_HOTKEY_QUERY 0xc
58 #define HPWMI_FEATURE_QUERY 0xd
59 #define HPWMI_WIRELESS2_QUERY 0x1b
60 #define HPWMI_POSTCODEERROR_QUERY 0x2a
69 enum hp_wmi_event_ids {
72 HPWMI_SMART_ADAPTER = 3,
73 HPWMI_BEZEL_BUTTON = 4,
75 HPWMI_CPU_BATTERY_THROTTLE = 6,
76 HPWMI_LOCK_SWITCH = 7,
78 HPWMI_SCREEN_ROTATION = 9,
79 HPWMI_COOLSENSE_SYSTEM_MOBILE = 0x0A,
80 HPWMI_COOLSENSE_SYSTEM_HOT = 0x0B,
81 HPWMI_PROXIMITY_SENSOR = 0x0C,
82 HPWMI_BACKLIT_KB_BRIGHTNESS = 0x0D,
83 HPWMI_PEAKSHIFT_PERIOD = 0x0F,
84 HPWMI_BATTERY_CHARGE_PERIOD = 0x10,
100 enum hp_return_value {
101 HPWMI_RET_WRONG_SIGNATURE = 0x02,
102 HPWMI_RET_UNKNOWN_COMMAND = 0x03,
103 HPWMI_RET_UNKNOWN_CMDTYPE = 0x04,
104 HPWMI_RET_INVALID_PARAMETERS = 0x05,
107 enum hp_wireless2_bits {
108 HPWMI_POWER_STATE = 0x01,
109 HPWMI_POWER_SOFT = 0x02,
110 HPWMI_POWER_BIOS = 0x04,
111 HPWMI_POWER_HARD = 0x08,
114 #define IS_HWBLOCKED(x) ((x & (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) \
115 != (HPWMI_POWER_BIOS | HPWMI_POWER_HARD))
116 #define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT)
118 struct bios_rfkill2_device_state {
123 u16 subsys_vendor_id;
124 u16 subsys_product_id;
130 /* 7 devices fit into the 128 byte buffer */
131 #define HPWMI_MAX_RFKILL2_DEVICES 7
133 struct bios_rfkill2_state {
137 struct bios_rfkill2_device_state device[HPWMI_MAX_RFKILL2_DEVICES];
140 static const struct key_entry hp_wmi_keymap[] = {
141 { KE_KEY, 0x02, { KEY_BRIGHTNESSUP } },
142 { KE_KEY, 0x03, { KEY_BRIGHTNESSDOWN } },
143 { KE_KEY, 0x20e6, { KEY_PROG1 } },
144 { KE_KEY, 0x20e8, { KEY_MEDIA } },
145 { KE_KEY, 0x2142, { KEY_MEDIA } },
146 { KE_KEY, 0x213b, { KEY_INFO } },
147 { KE_KEY, 0x2169, { KEY_DIRECTION } },
148 { KE_KEY, 0x216a, { KEY_SETUP } },
149 { KE_KEY, 0x231b, { KEY_HELP } },
153 static struct input_dev *hp_wmi_input_dev;
154 static struct platform_device *hp_wmi_platform_dev;
156 static struct rfkill *wifi_rfkill;
157 static struct rfkill *bluetooth_rfkill;
158 static struct rfkill *wwan_rfkill;
159 static struct rfkill *gps_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 hp_wmi_bios_2009_later(void)
301 int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, 0, &state,
302 sizeof(state), sizeof(state));
306 return (state & 0x10) ? 1 : 0;
309 static int hp_wmi_enable_hotkeys(void)
314 ret = hp_wmi_perform_query(HPWMI_BIOS_QUERY, 1, &query, sizeof(query),
322 static int hp_wmi_set_block(void *data, bool blocked)
324 enum hp_wmi_radio r = (enum hp_wmi_radio) data;
325 int query = BIT(r + 8) | ((!blocked) << r);
328 ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1,
329 &query, sizeof(query), 0);
335 static const struct rfkill_ops hp_wmi_rfkill_ops = {
336 .set_block = hp_wmi_set_block,
339 static bool hp_wmi_get_sw_state(enum hp_wmi_radio r)
343 hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0,
344 &wireless, sizeof(wireless),
346 /* TBD: Pass error */
348 mask = 0x200 << (r * 8);
356 static bool hp_wmi_get_hw_state(enum hp_wmi_radio r)
360 hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0,
361 &wireless, sizeof(wireless),
363 /* TBD: Pass error */
365 mask = 0x800 << (r * 8);
373 static int hp_wmi_rfkill2_set_block(void *data, bool blocked)
375 int rfkill_id = (int)(long)data;
376 char buffer[4] = { 0x01, 0x00, rfkill_id, !blocked };
378 if (hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 1,
379 buffer, sizeof(buffer), 0))
384 static const struct rfkill_ops hp_wmi_rfkill2_ops = {
385 .set_block = hp_wmi_rfkill2_set_block,
388 static int hp_wmi_rfkill2_refresh(void)
391 struct bios_rfkill2_state state;
393 err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state,
398 for (i = 0; i < rfkill2_count; i++) {
399 int num = rfkill2[i].num;
400 struct bios_rfkill2_device_state *devstate;
401 devstate = &state.device[num];
403 if (num >= state.count ||
404 devstate->rfkill_id != rfkill2[i].id) {
405 pr_warn("power configuration of the wireless devices unexpectedly changed\n");
409 rfkill_set_states(rfkill2[i].rfkill,
410 IS_SWBLOCKED(devstate->power),
411 IS_HWBLOCKED(devstate->power));
417 static int hp_wmi_post_code_state(void)
420 int ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, 0, &state,
421 sizeof(state), sizeof(state));
427 static ssize_t show_display(struct device *dev, struct device_attribute *attr,
430 int value = hp_wmi_display_state();
433 return sprintf(buf, "%d\n", value);
436 static ssize_t show_hddtemp(struct device *dev, struct device_attribute *attr,
439 int value = hp_wmi_hddtemp_state();
442 return sprintf(buf, "%d\n", value);
445 static ssize_t show_als(struct device *dev, struct device_attribute *attr,
448 int value = hp_wmi_als_state();
451 return sprintf(buf, "%d\n", value);
454 static ssize_t show_dock(struct device *dev, struct device_attribute *attr,
457 int value = hp_wmi_dock_state();
460 return sprintf(buf, "%d\n", value);
463 static ssize_t show_tablet(struct device *dev, struct device_attribute *attr,
466 int value = hp_wmi_tablet_state();
469 return sprintf(buf, "%d\n", value);
472 static ssize_t show_postcode(struct device *dev, struct device_attribute *attr,
475 /* Get the POST error code of previous boot failure. */
476 int value = hp_wmi_post_code_state();
479 return sprintf(buf, "0x%x\n", value);
482 static ssize_t set_als(struct device *dev, struct device_attribute *attr,
483 const char *buf, size_t count)
485 u32 tmp = simple_strtoul(buf, NULL, 10);
486 int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 1, &tmp,
487 sizeof(tmp), sizeof(tmp));
494 static ssize_t set_postcode(struct device *dev, struct device_attribute *attr,
495 const char *buf, size_t count)
499 long unsigned int tmp2;
501 ret = kstrtoul(buf, 10, &tmp2);
502 if (ret || tmp2 != 1)
505 /* Clear the POST error code. It is kept until until cleared. */
507 ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, 1, &tmp,
508 sizeof(tmp), sizeof(tmp));
515 static DEVICE_ATTR(display, S_IRUGO, show_display, NULL);
516 static DEVICE_ATTR(hddtemp, S_IRUGO, show_hddtemp, NULL);
517 static DEVICE_ATTR(als, S_IRUGO | S_IWUSR, show_als, set_als);
518 static DEVICE_ATTR(dock, S_IRUGO, show_dock, NULL);
519 static DEVICE_ATTR(tablet, S_IRUGO, show_tablet, NULL);
520 static DEVICE_ATTR(postcode, S_IRUGO | S_IWUSR, show_postcode, set_postcode);
522 static void hp_wmi_notify(u32 value, void *context)
524 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
525 union acpi_object *obj;
526 u32 event_id, event_data;
527 int key_code = 0, ret;
531 status = wmi_get_event_data(value, &response);
532 if (status != AE_OK) {
533 pr_info("bad event status 0x%x\n", status);
537 obj = (union acpi_object *)response.pointer;
541 if (obj->type != ACPI_TYPE_BUFFER) {
542 pr_info("Unknown response received %d\n", obj->type);
548 * Depending on ACPI version the concatenation of id and event data
549 * inside _WED function will result in a 8 or 16 byte buffer.
551 location = (u32 *)obj->buffer.pointer;
552 if (obj->buffer.length == 8) {
553 event_id = *location;
554 event_data = *(location + 1);
555 } else if (obj->buffer.length == 16) {
556 event_id = *location;
557 event_data = *(location + 2);
559 pr_info("Unknown buffer length %d\n", obj->buffer.length);
566 case HPWMI_DOCK_EVENT:
567 input_report_switch(hp_wmi_input_dev, SW_DOCK,
568 hp_wmi_dock_state());
569 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
570 hp_wmi_tablet_state());
571 input_sync(hp_wmi_input_dev);
575 case HPWMI_SMART_ADAPTER:
577 case HPWMI_BEZEL_BUTTON:
578 ret = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0,
585 if (!sparse_keymap_report_event(hp_wmi_input_dev,
587 pr_info("Unknown key code - 0x%x\n", key_code);
591 hp_wmi_rfkill2_refresh();
596 rfkill_set_states(wifi_rfkill,
597 hp_wmi_get_sw_state(HPWMI_WIFI),
598 hp_wmi_get_hw_state(HPWMI_WIFI));
599 if (bluetooth_rfkill)
600 rfkill_set_states(bluetooth_rfkill,
601 hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
602 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
604 rfkill_set_states(wwan_rfkill,
605 hp_wmi_get_sw_state(HPWMI_WWAN),
606 hp_wmi_get_hw_state(HPWMI_WWAN));
608 rfkill_set_states(gps_rfkill,
609 hp_wmi_get_sw_state(HPWMI_GPS),
610 hp_wmi_get_hw_state(HPWMI_GPS));
612 case HPWMI_CPU_BATTERY_THROTTLE:
613 pr_info("Unimplemented CPU throttle because of 3 Cell battery event detected\n");
615 case HPWMI_LOCK_SWITCH:
617 case HPWMI_LID_SWITCH:
619 case HPWMI_SCREEN_ROTATION:
621 case HPWMI_COOLSENSE_SYSTEM_MOBILE:
623 case HPWMI_COOLSENSE_SYSTEM_HOT:
625 case HPWMI_PROXIMITY_SENSOR:
627 case HPWMI_BACKLIT_KB_BRIGHTNESS:
629 case HPWMI_PEAKSHIFT_PERIOD:
631 case HPWMI_BATTERY_CHARGE_PERIOD:
634 pr_info("Unknown event_id - %d - 0x%x\n", event_id, event_data);
639 static int __init hp_wmi_input_setup(void)
644 hp_wmi_input_dev = input_allocate_device();
645 if (!hp_wmi_input_dev)
648 hp_wmi_input_dev->name = "HP WMI hotkeys";
649 hp_wmi_input_dev->phys = "wmi/input0";
650 hp_wmi_input_dev->id.bustype = BUS_HOST;
652 __set_bit(EV_SW, hp_wmi_input_dev->evbit);
653 __set_bit(SW_DOCK, hp_wmi_input_dev->swbit);
654 __set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit);
656 err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL);
660 /* Set initial hardware state */
661 input_report_switch(hp_wmi_input_dev, SW_DOCK, hp_wmi_dock_state());
662 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
663 hp_wmi_tablet_state());
664 input_sync(hp_wmi_input_dev);
666 if (hp_wmi_bios_2009_later() == 4)
667 hp_wmi_enable_hotkeys();
669 status = wmi_install_notify_handler(HPWMI_EVENT_GUID, hp_wmi_notify, NULL);
670 if (ACPI_FAILURE(status)) {
672 goto err_free_keymap;
675 err = input_register_device(hp_wmi_input_dev);
677 goto err_uninstall_notifier;
681 err_uninstall_notifier:
682 wmi_remove_notify_handler(HPWMI_EVENT_GUID);
684 sparse_keymap_free(hp_wmi_input_dev);
686 input_free_device(hp_wmi_input_dev);
690 static void hp_wmi_input_destroy(void)
692 wmi_remove_notify_handler(HPWMI_EVENT_GUID);
693 sparse_keymap_free(hp_wmi_input_dev);
694 input_unregister_device(hp_wmi_input_dev);
697 static void cleanup_sysfs(struct platform_device *device)
699 device_remove_file(&device->dev, &dev_attr_display);
700 device_remove_file(&device->dev, &dev_attr_hddtemp);
701 device_remove_file(&device->dev, &dev_attr_als);
702 device_remove_file(&device->dev, &dev_attr_dock);
703 device_remove_file(&device->dev, &dev_attr_tablet);
704 device_remove_file(&device->dev, &dev_attr_postcode);
707 static int hp_wmi_rfkill_setup(struct platform_device *device)
712 err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, &wireless,
713 sizeof(wireless), sizeof(wireless));
717 if (wireless & 0x1) {
718 wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev,
721 (void *) HPWMI_WIFI);
724 rfkill_init_sw_state(wifi_rfkill,
725 hp_wmi_get_sw_state(HPWMI_WIFI));
726 rfkill_set_hw_state(wifi_rfkill,
727 hp_wmi_get_hw_state(HPWMI_WIFI));
728 err = rfkill_register(wifi_rfkill);
730 goto register_wifi_error;
733 if (wireless & 0x2) {
734 bluetooth_rfkill = rfkill_alloc("hp-bluetooth", &device->dev,
735 RFKILL_TYPE_BLUETOOTH,
737 (void *) HPWMI_BLUETOOTH);
738 if (!bluetooth_rfkill) {
740 goto register_wifi_error;
742 rfkill_init_sw_state(bluetooth_rfkill,
743 hp_wmi_get_sw_state(HPWMI_BLUETOOTH));
744 rfkill_set_hw_state(bluetooth_rfkill,
745 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
746 err = rfkill_register(bluetooth_rfkill);
748 goto register_bluetooth_error;
751 if (wireless & 0x4) {
752 wwan_rfkill = rfkill_alloc("hp-wwan", &device->dev,
755 (void *) HPWMI_WWAN);
758 goto register_bluetooth_error;
760 rfkill_init_sw_state(wwan_rfkill,
761 hp_wmi_get_sw_state(HPWMI_WWAN));
762 rfkill_set_hw_state(wwan_rfkill,
763 hp_wmi_get_hw_state(HPWMI_WWAN));
764 err = rfkill_register(wwan_rfkill);
766 goto register_wwan_error;
769 if (wireless & 0x8) {
770 gps_rfkill = rfkill_alloc("hp-gps", &device->dev,
776 goto register_wwan_error;
778 rfkill_init_sw_state(gps_rfkill,
779 hp_wmi_get_sw_state(HPWMI_GPS));
780 rfkill_set_hw_state(gps_rfkill,
781 hp_wmi_get_hw_state(HPWMI_GPS));
782 err = rfkill_register(gps_rfkill);
784 goto register_gps_error;
789 rfkill_destroy(gps_rfkill);
791 if (bluetooth_rfkill)
792 rfkill_unregister(bluetooth_rfkill);
794 rfkill_destroy(wwan_rfkill);
797 rfkill_unregister(gps_rfkill);
798 register_bluetooth_error:
799 rfkill_destroy(bluetooth_rfkill);
800 bluetooth_rfkill = NULL;
802 rfkill_unregister(wifi_rfkill);
804 rfkill_destroy(wifi_rfkill);
809 static int hp_wmi_rfkill2_setup(struct platform_device *device)
812 struct bios_rfkill2_state state;
813 err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state,
818 if (state.count > HPWMI_MAX_RFKILL2_DEVICES) {
819 pr_warn("unable to parse 0x1b query output\n");
823 for (i = 0; i < state.count; i++) {
824 struct rfkill *rfkill;
825 enum rfkill_type type;
827 switch (state.device[i].radio_type) {
829 type = RFKILL_TYPE_WLAN;
832 case HPWMI_BLUETOOTH:
833 type = RFKILL_TYPE_BLUETOOTH;
834 name = "hp-bluetooth";
837 type = RFKILL_TYPE_WWAN;
841 type = RFKILL_TYPE_GPS;
845 pr_warn("unknown device type 0x%x\n",
846 state.device[i].radio_type);
850 if (!state.device[i].vendor_id) {
851 pr_warn("zero device %d while %d reported\n",
856 rfkill = rfkill_alloc(name, &device->dev, type,
857 &hp_wmi_rfkill2_ops, (void *)(long)i);
863 rfkill2[rfkill2_count].id = state.device[i].rfkill_id;
864 rfkill2[rfkill2_count].num = i;
865 rfkill2[rfkill2_count].rfkill = rfkill;
867 rfkill_init_sw_state(rfkill,
868 IS_SWBLOCKED(state.device[i].power));
869 rfkill_set_hw_state(rfkill,
870 IS_HWBLOCKED(state.device[i].power));
872 if (!(state.device[i].power & HPWMI_POWER_BIOS))
873 pr_info("device %s blocked by BIOS\n", name);
875 err = rfkill_register(rfkill);
877 rfkill_destroy(rfkill);
886 for (; rfkill2_count > 0; rfkill2_count--) {
887 rfkill_unregister(rfkill2[rfkill2_count - 1].rfkill);
888 rfkill_destroy(rfkill2[rfkill2_count - 1].rfkill);
893 static int __init hp_wmi_bios_setup(struct platform_device *device)
897 /* clear detected rfkill devices */
899 bluetooth_rfkill = NULL;
904 if (hp_wmi_bios_2009_later() || hp_wmi_rfkill_setup(device))
905 hp_wmi_rfkill2_setup(device);
907 err = device_create_file(&device->dev, &dev_attr_display);
909 goto add_sysfs_error;
910 err = device_create_file(&device->dev, &dev_attr_hddtemp);
912 goto add_sysfs_error;
913 err = device_create_file(&device->dev, &dev_attr_als);
915 goto add_sysfs_error;
916 err = device_create_file(&device->dev, &dev_attr_dock);
918 goto add_sysfs_error;
919 err = device_create_file(&device->dev, &dev_attr_tablet);
921 goto add_sysfs_error;
922 err = device_create_file(&device->dev, &dev_attr_postcode);
924 goto add_sysfs_error;
928 cleanup_sysfs(device);
932 static int __exit hp_wmi_bios_remove(struct platform_device *device)
935 cleanup_sysfs(device);
937 for (i = 0; i < rfkill2_count; i++) {
938 rfkill_unregister(rfkill2[i].rfkill);
939 rfkill_destroy(rfkill2[i].rfkill);
943 rfkill_unregister(wifi_rfkill);
944 rfkill_destroy(wifi_rfkill);
946 if (bluetooth_rfkill) {
947 rfkill_unregister(bluetooth_rfkill);
948 rfkill_destroy(bluetooth_rfkill);
951 rfkill_unregister(wwan_rfkill);
952 rfkill_destroy(wwan_rfkill);
955 rfkill_unregister(gps_rfkill);
956 rfkill_destroy(gps_rfkill);
962 static int hp_wmi_resume_handler(struct device *device)
965 * Hardware state may have changed while suspended, so trigger
966 * input events for the current state. As this is a switch,
967 * the input layer will only actually pass it on if the state
970 if (hp_wmi_input_dev) {
971 input_report_switch(hp_wmi_input_dev, SW_DOCK,
972 hp_wmi_dock_state());
973 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
974 hp_wmi_tablet_state());
975 input_sync(hp_wmi_input_dev);
979 hp_wmi_rfkill2_refresh();
982 rfkill_set_states(wifi_rfkill,
983 hp_wmi_get_sw_state(HPWMI_WIFI),
984 hp_wmi_get_hw_state(HPWMI_WIFI));
985 if (bluetooth_rfkill)
986 rfkill_set_states(bluetooth_rfkill,
987 hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
988 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
990 rfkill_set_states(wwan_rfkill,
991 hp_wmi_get_sw_state(HPWMI_WWAN),
992 hp_wmi_get_hw_state(HPWMI_WWAN));
994 rfkill_set_states(gps_rfkill,
995 hp_wmi_get_sw_state(HPWMI_GPS),
996 hp_wmi_get_hw_state(HPWMI_GPS));
1001 static const struct dev_pm_ops hp_wmi_pm_ops = {
1002 .resume = hp_wmi_resume_handler,
1003 .restore = hp_wmi_resume_handler,
1006 static struct platform_driver hp_wmi_driver = {
1009 .owner = THIS_MODULE,
1010 .pm = &hp_wmi_pm_ops,
1012 .remove = __exit_p(hp_wmi_bios_remove),
1015 static int __init hp_wmi_init(void)
1018 int event_capable = wmi_has_guid(HPWMI_EVENT_GUID);
1019 int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID);
1021 if (!bios_capable && !event_capable)
1024 if (event_capable) {
1025 err = hp_wmi_input_setup();
1031 hp_wmi_platform_dev =
1032 platform_device_register_simple("hp-wmi", -1, NULL, 0);
1033 if (IS_ERR(hp_wmi_platform_dev)) {
1034 err = PTR_ERR(hp_wmi_platform_dev);
1035 goto err_destroy_input;
1038 err = platform_driver_probe(&hp_wmi_driver, hp_wmi_bios_setup);
1040 goto err_unregister_device;
1045 err_unregister_device:
1046 platform_device_unregister(hp_wmi_platform_dev);
1049 hp_wmi_input_destroy();
1053 module_init(hp_wmi_init);
1055 static void __exit hp_wmi_exit(void)
1057 if (wmi_has_guid(HPWMI_EVENT_GUID))
1058 hp_wmi_input_destroy();
1060 if (hp_wmi_platform_dev) {
1061 platform_device_unregister(hp_wmi_platform_dev);
1062 platform_driver_unregister(&hp_wmi_driver);
1065 module_exit(hp_wmi_exit);