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 static int enable_tablet_mode_sw = -1;
49 module_param(enable_tablet_mode_sw, int, 0444);
50 MODULE_PARM_DESC(enable_tablet_mode_sw, "Enable SW_TABLET_MODE reporting (-1=auto, 0=no, 1=yes)");
52 #define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C"
53 #define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4"
57 HPWMI_BLUETOOTH = 0x1,
62 enum hp_wmi_event_ids {
63 HPWMI_DOCK_EVENT = 0x01,
64 HPWMI_PARK_HDD = 0x02,
65 HPWMI_SMART_ADAPTER = 0x03,
66 HPWMI_BEZEL_BUTTON = 0x04,
67 HPWMI_WIRELESS = 0x05,
68 HPWMI_CPU_BATTERY_THROTTLE = 0x06,
69 HPWMI_LOCK_SWITCH = 0x07,
70 HPWMI_LID_SWITCH = 0x08,
71 HPWMI_SCREEN_ROTATION = 0x09,
72 HPWMI_COOLSENSE_SYSTEM_MOBILE = 0x0A,
73 HPWMI_COOLSENSE_SYSTEM_HOT = 0x0B,
74 HPWMI_PROXIMITY_SENSOR = 0x0C,
75 HPWMI_BACKLIT_KB_BRIGHTNESS = 0x0D,
76 HPWMI_PEAKSHIFT_PERIOD = 0x0F,
77 HPWMI_BATTERY_CHARGE_PERIOD = 0x10,
78 HPWMI_SANITIZATION_MODE = 0x17,
89 enum hp_wmi_commandtype {
90 HPWMI_DISPLAY_QUERY = 0x01,
91 HPWMI_HDDTEMP_QUERY = 0x02,
92 HPWMI_ALS_QUERY = 0x03,
93 HPWMI_HARDWARE_QUERY = 0x04,
94 HPWMI_WIRELESS_QUERY = 0x05,
95 HPWMI_BATTERY_QUERY = 0x07,
96 HPWMI_BIOS_QUERY = 0x09,
97 HPWMI_FEATURE_QUERY = 0x0b,
98 HPWMI_HOTKEY_QUERY = 0x0c,
99 HPWMI_FEATURE2_QUERY = 0x0d,
100 HPWMI_WIRELESS2_QUERY = 0x1b,
101 HPWMI_POSTCODEERROR_QUERY = 0x2a,
104 enum hp_wmi_command {
110 enum hp_wmi_hardware_mask {
111 HPWMI_DOCK_MASK = 0x01,
112 HPWMI_TABLET_MASK = 0x04,
120 enum hp_return_value {
121 HPWMI_RET_WRONG_SIGNATURE = 0x02,
122 HPWMI_RET_UNKNOWN_COMMAND = 0x03,
123 HPWMI_RET_UNKNOWN_CMDTYPE = 0x04,
124 HPWMI_RET_INVALID_PARAMETERS = 0x05,
127 enum hp_wireless2_bits {
128 HPWMI_POWER_STATE = 0x01,
129 HPWMI_POWER_SOFT = 0x02,
130 HPWMI_POWER_BIOS = 0x04,
131 HPWMI_POWER_HARD = 0x08,
134 #define IS_HWBLOCKED(x) ((x & (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) \
135 != (HPWMI_POWER_BIOS | HPWMI_POWER_HARD))
136 #define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT)
138 struct bios_rfkill2_device_state {
143 u16 subsys_vendor_id;
144 u16 subsys_product_id;
150 /* 7 devices fit into the 128 byte buffer */
151 #define HPWMI_MAX_RFKILL2_DEVICES 7
153 struct bios_rfkill2_state {
157 struct bios_rfkill2_device_state device[HPWMI_MAX_RFKILL2_DEVICES];
160 static const struct key_entry hp_wmi_keymap[] = {
161 { KE_KEY, 0x02, { KEY_BRIGHTNESSUP } },
162 { KE_KEY, 0x03, { KEY_BRIGHTNESSDOWN } },
163 { KE_KEY, 0x20e6, { KEY_PROG1 } },
164 { KE_KEY, 0x20e8, { KEY_MEDIA } },
165 { KE_KEY, 0x2142, { KEY_MEDIA } },
166 { KE_KEY, 0x213b, { KEY_INFO } },
167 { KE_KEY, 0x2169, { KEY_ROTATE_DISPLAY } },
168 { KE_KEY, 0x216a, { KEY_SETUP } },
169 { KE_KEY, 0x231b, { KEY_HELP } },
173 static struct input_dev *hp_wmi_input_dev;
174 static struct platform_device *hp_wmi_platform_dev;
176 static struct rfkill *wifi_rfkill;
177 static struct rfkill *bluetooth_rfkill;
178 static struct rfkill *wwan_rfkill;
180 struct rfkill2_device {
183 struct rfkill *rfkill;
186 static int rfkill2_count;
187 static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES];
189 /* map output size to the corresponding WMI method id */
190 static inline int encode_outsize_for_pvsz(int outsize)
206 * hp_wmi_perform_query
208 * query: The commandtype (enum hp_wmi_commandtype)
209 * write: The command (enum hp_wmi_command)
210 * buffer: Buffer used as input and/or output
211 * insize: Size of input buffer
212 * outsize: Size of output buffer
214 * returns zero on success
215 * an HP WMI query specific error code (which is positive)
216 * -EINVAL if the query was not successful at all
217 * -EINVAL if the output buffer size exceeds buffersize
219 * Note: The buffersize must at least be the maximum of the input and output
220 * size. E.g. Battery info query is defined to have 1 byte input
221 * and 128 byte output. The caller would do:
222 * buffer = kzalloc(128, GFP_KERNEL);
223 * ret = hp_wmi_perform_query(HPWMI_BATTERY_QUERY, HPWMI_READ, buffer, 1, 128)
225 static int hp_wmi_perform_query(int query, enum hp_wmi_command command,
226 void *buffer, int insize, int outsize)
229 struct bios_return *bios_return;
231 union acpi_object *obj;
232 struct bios_args args = {
233 .signature = 0x55434553,
235 .commandtype = query,
239 struct acpi_buffer input = { sizeof(struct bios_args), &args };
240 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
243 mid = encode_outsize_for_pvsz(outsize);
244 if (WARN_ON(mid < 0))
247 if (WARN_ON(insize > sizeof(args.data)))
249 memcpy(&args.data[0], buffer, insize);
251 wmi_evaluate_method(HPWMI_BIOS_GUID, 0, mid, &input, &output);
253 obj = output.pointer;
258 if (obj->type != ACPI_TYPE_BUFFER) {
263 bios_return = (struct bios_return *)obj->buffer.pointer;
264 ret = bios_return->return_code;
267 if (ret != HPWMI_RET_UNKNOWN_CMDTYPE)
268 pr_warn("query 0x%x returned error 0x%x\n", query, ret);
272 /* Ignore output data of zero size */
276 actual_outsize = min(outsize, (int)(obj->buffer.length - sizeof(*bios_return)));
277 memcpy(buffer, obj->buffer.pointer + sizeof(*bios_return), actual_outsize);
278 memset(buffer + actual_outsize, 0, outsize - actual_outsize);
285 static int hp_wmi_read_int(int query)
289 ret = hp_wmi_perform_query(query, HPWMI_READ, &val,
290 sizeof(val), sizeof(val));
293 return ret < 0 ? ret : -EINVAL;
298 static int hp_wmi_hw_state(int mask)
300 int state = hp_wmi_read_int(HPWMI_HARDWARE_QUERY);
305 return !!(state & mask);
308 static int __init hp_wmi_bios_2008_later(void)
311 int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, HPWMI_READ, &state,
312 sizeof(state), sizeof(state));
316 return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO;
319 static int __init hp_wmi_bios_2009_later(void)
322 int ret = hp_wmi_perform_query(HPWMI_FEATURE2_QUERY, HPWMI_READ, &state,
323 sizeof(state), sizeof(state));
327 return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO;
330 static int __init hp_wmi_enable_hotkeys(void)
333 int ret = hp_wmi_perform_query(HPWMI_BIOS_QUERY, HPWMI_WRITE, &value,
336 return ret <= 0 ? ret : -EINVAL;
339 static int hp_wmi_set_block(void *data, bool blocked)
341 enum hp_wmi_radio r = (enum hp_wmi_radio) data;
342 int query = BIT(r + 8) | ((!blocked) << r);
345 ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_WRITE,
346 &query, sizeof(query), 0);
348 return ret <= 0 ? ret : -EINVAL;
351 static const struct rfkill_ops hp_wmi_rfkill_ops = {
352 .set_block = hp_wmi_set_block,
355 static bool hp_wmi_get_sw_state(enum hp_wmi_radio r)
357 int mask = 0x200 << (r * 8);
359 int wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY);
361 /* TBD: Pass error */
362 WARN_ONCE(wireless < 0, "error executing HPWMI_WIRELESS_QUERY");
364 return !(wireless & mask);
367 static bool hp_wmi_get_hw_state(enum hp_wmi_radio r)
369 int mask = 0x800 << (r * 8);
371 int wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY);
373 /* TBD: Pass error */
374 WARN_ONCE(wireless < 0, "error executing HPWMI_WIRELESS_QUERY");
376 return !(wireless & mask);
379 static int hp_wmi_rfkill2_set_block(void *data, bool blocked)
381 int rfkill_id = (int)(long)data;
382 char buffer[4] = { 0x01, 0x00, rfkill_id, !blocked };
385 ret = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_WRITE,
386 buffer, sizeof(buffer), 0);
388 return ret <= 0 ? ret : -EINVAL;
391 static const struct rfkill_ops hp_wmi_rfkill2_ops = {
392 .set_block = hp_wmi_rfkill2_set_block,
395 static int hp_wmi_rfkill2_refresh(void)
397 struct bios_rfkill2_state state;
400 err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state,
401 sizeof(state), sizeof(state));
405 for (i = 0; i < rfkill2_count; i++) {
406 int num = rfkill2[i].num;
407 struct bios_rfkill2_device_state *devstate;
408 devstate = &state.device[num];
410 if (num >= state.count ||
411 devstate->rfkill_id != rfkill2[i].id) {
412 pr_warn("power configuration of the wireless devices unexpectedly changed\n");
416 rfkill_set_states(rfkill2[i].rfkill,
417 IS_SWBLOCKED(devstate->power),
418 IS_HWBLOCKED(devstate->power));
424 static ssize_t display_show(struct device *dev, struct device_attribute *attr,
427 int value = hp_wmi_read_int(HPWMI_DISPLAY_QUERY);
430 return sprintf(buf, "%d\n", value);
433 static ssize_t hddtemp_show(struct device *dev, struct device_attribute *attr,
436 int value = hp_wmi_read_int(HPWMI_HDDTEMP_QUERY);
439 return sprintf(buf, "%d\n", value);
442 static ssize_t als_show(struct device *dev, struct device_attribute *attr,
445 int value = hp_wmi_read_int(HPWMI_ALS_QUERY);
448 return sprintf(buf, "%d\n", value);
451 static ssize_t dock_show(struct device *dev, struct device_attribute *attr,
454 int value = hp_wmi_hw_state(HPWMI_DOCK_MASK);
457 return sprintf(buf, "%d\n", value);
460 static ssize_t tablet_show(struct device *dev, struct device_attribute *attr,
463 int value = hp_wmi_hw_state(HPWMI_TABLET_MASK);
466 return sprintf(buf, "%d\n", value);
469 static ssize_t postcode_show(struct device *dev, struct device_attribute *attr,
472 /* Get the POST error code of previous boot failure. */
473 int value = hp_wmi_read_int(HPWMI_POSTCODEERROR_QUERY);
476 return sprintf(buf, "0x%x\n", value);
479 static ssize_t als_store(struct device *dev, struct device_attribute *attr,
480 const char *buf, size_t count)
485 ret = kstrtou32(buf, 10, &tmp);
489 ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, HPWMI_WRITE, &tmp,
490 sizeof(tmp), sizeof(tmp));
492 return ret < 0 ? ret : -EINVAL;
497 static ssize_t postcode_store(struct device *dev, struct device_attribute *attr,
498 const char *buf, size_t count)
500 long unsigned int tmp2;
504 ret = kstrtoul(buf, 10, &tmp2);
505 if (!ret && tmp2 != 1)
510 /* Clear the POST error code. It is kept until until cleared. */
512 ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, HPWMI_WRITE, &tmp,
513 sizeof(tmp), sizeof(tmp));
517 return ret < 0 ? ret : -EINVAL;
522 static DEVICE_ATTR_RO(display);
523 static DEVICE_ATTR_RO(hddtemp);
524 static DEVICE_ATTR_RW(als);
525 static DEVICE_ATTR_RO(dock);
526 static DEVICE_ATTR_RO(tablet);
527 static DEVICE_ATTR_RW(postcode);
529 static void hp_wmi_notify(u32 value, void *context)
531 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
532 u32 event_id, event_data;
533 union acpi_object *obj;
538 status = wmi_get_event_data(value, &response);
539 if (status != AE_OK) {
540 pr_info("bad event status 0x%x\n", status);
544 obj = (union acpi_object *)response.pointer;
548 if (obj->type != ACPI_TYPE_BUFFER) {
549 pr_info("Unknown response received %d\n", obj->type);
555 * Depending on ACPI version the concatenation of id and event data
556 * inside _WED function will result in a 8 or 16 byte buffer.
558 location = (u32 *)obj->buffer.pointer;
559 if (obj->buffer.length == 8) {
560 event_id = *location;
561 event_data = *(location + 1);
562 } else if (obj->buffer.length == 16) {
563 event_id = *location;
564 event_data = *(location + 2);
566 pr_info("Unknown buffer length %d\n", obj->buffer.length);
573 case HPWMI_DOCK_EVENT:
574 if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit))
575 input_report_switch(hp_wmi_input_dev, SW_DOCK,
576 hp_wmi_hw_state(HPWMI_DOCK_MASK));
577 if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit))
578 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
579 hp_wmi_hw_state(HPWMI_TABLET_MASK));
580 input_sync(hp_wmi_input_dev);
584 case HPWMI_SMART_ADAPTER:
586 case HPWMI_BEZEL_BUTTON:
587 key_code = hp_wmi_read_int(HPWMI_HOTKEY_QUERY);
591 if (!sparse_keymap_report_event(hp_wmi_input_dev,
593 pr_info("Unknown key code - 0x%x\n", key_code);
597 hp_wmi_rfkill2_refresh();
602 rfkill_set_states(wifi_rfkill,
603 hp_wmi_get_sw_state(HPWMI_WIFI),
604 hp_wmi_get_hw_state(HPWMI_WIFI));
605 if (bluetooth_rfkill)
606 rfkill_set_states(bluetooth_rfkill,
607 hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
608 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
610 rfkill_set_states(wwan_rfkill,
611 hp_wmi_get_sw_state(HPWMI_WWAN),
612 hp_wmi_get_hw_state(HPWMI_WWAN));
614 case HPWMI_CPU_BATTERY_THROTTLE:
615 pr_info("Unimplemented CPU throttle because of 3 Cell battery event detected\n");
617 case HPWMI_LOCK_SWITCH:
619 case HPWMI_LID_SWITCH:
621 case HPWMI_SCREEN_ROTATION:
623 case HPWMI_COOLSENSE_SYSTEM_MOBILE:
625 case HPWMI_COOLSENSE_SYSTEM_HOT:
627 case HPWMI_PROXIMITY_SENSOR:
629 case HPWMI_BACKLIT_KB_BRIGHTNESS:
631 case HPWMI_PEAKSHIFT_PERIOD:
633 case HPWMI_BATTERY_CHARGE_PERIOD:
635 case HPWMI_SANITIZATION_MODE:
638 pr_info("Unknown event_id - %d - 0x%x\n", event_id, event_data);
643 static int __init hp_wmi_input_setup(void)
648 hp_wmi_input_dev = input_allocate_device();
649 if (!hp_wmi_input_dev)
652 hp_wmi_input_dev->name = "HP WMI hotkeys";
653 hp_wmi_input_dev->phys = "wmi/input0";
654 hp_wmi_input_dev->id.bustype = BUS_HOST;
656 __set_bit(EV_SW, hp_wmi_input_dev->evbit);
659 val = hp_wmi_hw_state(HPWMI_DOCK_MASK);
661 __set_bit(SW_DOCK, hp_wmi_input_dev->swbit);
662 input_report_switch(hp_wmi_input_dev, SW_DOCK, val);
666 if (enable_tablet_mode_sw > 0) {
667 val = hp_wmi_hw_state(HPWMI_TABLET_MASK);
669 __set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit);
670 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, val);
674 err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL);
678 /* Set initial hardware state */
679 input_sync(hp_wmi_input_dev);
681 if (!hp_wmi_bios_2009_later() && hp_wmi_bios_2008_later())
682 hp_wmi_enable_hotkeys();
684 status = wmi_install_notify_handler(HPWMI_EVENT_GUID, hp_wmi_notify, NULL);
685 if (ACPI_FAILURE(status)) {
690 err = input_register_device(hp_wmi_input_dev);
692 goto err_uninstall_notifier;
696 err_uninstall_notifier:
697 wmi_remove_notify_handler(HPWMI_EVENT_GUID);
699 input_free_device(hp_wmi_input_dev);
703 static void hp_wmi_input_destroy(void)
705 wmi_remove_notify_handler(HPWMI_EVENT_GUID);
706 input_unregister_device(hp_wmi_input_dev);
709 static void cleanup_sysfs(struct platform_device *device)
711 device_remove_file(&device->dev, &dev_attr_display);
712 device_remove_file(&device->dev, &dev_attr_hddtemp);
713 device_remove_file(&device->dev, &dev_attr_als);
714 device_remove_file(&device->dev, &dev_attr_dock);
715 device_remove_file(&device->dev, &dev_attr_tablet);
716 device_remove_file(&device->dev, &dev_attr_postcode);
719 static int __init hp_wmi_rfkill_setup(struct platform_device *device)
723 wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY);
727 err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_WRITE, &wireless,
728 sizeof(wireless), 0);
732 if (wireless & 0x1) {
733 wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev,
736 (void *) HPWMI_WIFI);
739 rfkill_init_sw_state(wifi_rfkill,
740 hp_wmi_get_sw_state(HPWMI_WIFI));
741 rfkill_set_hw_state(wifi_rfkill,
742 hp_wmi_get_hw_state(HPWMI_WIFI));
743 err = rfkill_register(wifi_rfkill);
745 goto register_wifi_error;
748 if (wireless & 0x2) {
749 bluetooth_rfkill = rfkill_alloc("hp-bluetooth", &device->dev,
750 RFKILL_TYPE_BLUETOOTH,
752 (void *) HPWMI_BLUETOOTH);
753 if (!bluetooth_rfkill) {
755 goto register_bluetooth_error;
757 rfkill_init_sw_state(bluetooth_rfkill,
758 hp_wmi_get_sw_state(HPWMI_BLUETOOTH));
759 rfkill_set_hw_state(bluetooth_rfkill,
760 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
761 err = rfkill_register(bluetooth_rfkill);
763 goto register_bluetooth_error;
766 if (wireless & 0x4) {
767 wwan_rfkill = rfkill_alloc("hp-wwan", &device->dev,
770 (void *) HPWMI_WWAN);
773 goto register_wwan_error;
775 rfkill_init_sw_state(wwan_rfkill,
776 hp_wmi_get_sw_state(HPWMI_WWAN));
777 rfkill_set_hw_state(wwan_rfkill,
778 hp_wmi_get_hw_state(HPWMI_WWAN));
779 err = rfkill_register(wwan_rfkill);
781 goto register_wwan_error;
787 rfkill_destroy(wwan_rfkill);
789 if (bluetooth_rfkill)
790 rfkill_unregister(bluetooth_rfkill);
791 register_bluetooth_error:
792 rfkill_destroy(bluetooth_rfkill);
793 bluetooth_rfkill = NULL;
795 rfkill_unregister(wifi_rfkill);
797 rfkill_destroy(wifi_rfkill);
802 static int __init hp_wmi_rfkill2_setup(struct platform_device *device)
804 struct bios_rfkill2_state state;
807 err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state,
808 sizeof(state), sizeof(state));
810 return err < 0 ? err : -EINVAL;
812 if (state.count > HPWMI_MAX_RFKILL2_DEVICES) {
813 pr_warn("unable to parse 0x1b query output\n");
817 for (i = 0; i < state.count; i++) {
818 struct rfkill *rfkill;
819 enum rfkill_type type;
821 switch (state.device[i].radio_type) {
823 type = RFKILL_TYPE_WLAN;
826 case HPWMI_BLUETOOTH:
827 type = RFKILL_TYPE_BLUETOOTH;
828 name = "hp-bluetooth";
831 type = RFKILL_TYPE_WWAN;
835 type = RFKILL_TYPE_GPS;
839 pr_warn("unknown device type 0x%x\n",
840 state.device[i].radio_type);
844 if (!state.device[i].vendor_id) {
845 pr_warn("zero device %d while %d reported\n",
850 rfkill = rfkill_alloc(name, &device->dev, type,
851 &hp_wmi_rfkill2_ops, (void *)(long)i);
857 rfkill2[rfkill2_count].id = state.device[i].rfkill_id;
858 rfkill2[rfkill2_count].num = i;
859 rfkill2[rfkill2_count].rfkill = rfkill;
861 rfkill_init_sw_state(rfkill,
862 IS_SWBLOCKED(state.device[i].power));
863 rfkill_set_hw_state(rfkill,
864 IS_HWBLOCKED(state.device[i].power));
866 if (!(state.device[i].power & HPWMI_POWER_BIOS))
867 pr_info("device %s blocked by BIOS\n", name);
869 err = rfkill_register(rfkill);
871 rfkill_destroy(rfkill);
880 for (; rfkill2_count > 0; rfkill2_count--) {
881 rfkill_unregister(rfkill2[rfkill2_count - 1].rfkill);
882 rfkill_destroy(rfkill2[rfkill2_count - 1].rfkill);
887 static int __init hp_wmi_bios_setup(struct platform_device *device)
891 /* clear detected rfkill devices */
893 bluetooth_rfkill = NULL;
897 if (hp_wmi_rfkill_setup(device))
898 hp_wmi_rfkill2_setup(device);
900 err = device_create_file(&device->dev, &dev_attr_display);
902 goto add_sysfs_error;
903 err = device_create_file(&device->dev, &dev_attr_hddtemp);
905 goto add_sysfs_error;
906 err = device_create_file(&device->dev, &dev_attr_als);
908 goto add_sysfs_error;
909 err = device_create_file(&device->dev, &dev_attr_dock);
911 goto add_sysfs_error;
912 err = device_create_file(&device->dev, &dev_attr_tablet);
914 goto add_sysfs_error;
915 err = device_create_file(&device->dev, &dev_attr_postcode);
917 goto add_sysfs_error;
921 cleanup_sysfs(device);
925 static int __exit hp_wmi_bios_remove(struct platform_device *device)
928 cleanup_sysfs(device);
930 for (i = 0; i < rfkill2_count; i++) {
931 rfkill_unregister(rfkill2[i].rfkill);
932 rfkill_destroy(rfkill2[i].rfkill);
936 rfkill_unregister(wifi_rfkill);
937 rfkill_destroy(wifi_rfkill);
939 if (bluetooth_rfkill) {
940 rfkill_unregister(bluetooth_rfkill);
941 rfkill_destroy(bluetooth_rfkill);
944 rfkill_unregister(wwan_rfkill);
945 rfkill_destroy(wwan_rfkill);
951 static int hp_wmi_resume_handler(struct device *device)
954 * Hardware state may have changed while suspended, so trigger
955 * input events for the current state. As this is a switch,
956 * the input layer will only actually pass it on if the state
959 if (hp_wmi_input_dev) {
960 if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit))
961 input_report_switch(hp_wmi_input_dev, SW_DOCK,
962 hp_wmi_hw_state(HPWMI_DOCK_MASK));
963 if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit))
964 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
965 hp_wmi_hw_state(HPWMI_TABLET_MASK));
966 input_sync(hp_wmi_input_dev);
970 hp_wmi_rfkill2_refresh();
973 rfkill_set_states(wifi_rfkill,
974 hp_wmi_get_sw_state(HPWMI_WIFI),
975 hp_wmi_get_hw_state(HPWMI_WIFI));
976 if (bluetooth_rfkill)
977 rfkill_set_states(bluetooth_rfkill,
978 hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
979 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
981 rfkill_set_states(wwan_rfkill,
982 hp_wmi_get_sw_state(HPWMI_WWAN),
983 hp_wmi_get_hw_state(HPWMI_WWAN));
988 static const struct dev_pm_ops hp_wmi_pm_ops = {
989 .resume = hp_wmi_resume_handler,
990 .restore = hp_wmi_resume_handler,
993 static struct platform_driver hp_wmi_driver = {
996 .pm = &hp_wmi_pm_ops,
998 .remove = __exit_p(hp_wmi_bios_remove),
1001 static int __init hp_wmi_init(void)
1003 int event_capable = wmi_has_guid(HPWMI_EVENT_GUID);
1004 int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID);
1007 if (!bios_capable && !event_capable)
1010 if (event_capable) {
1011 err = hp_wmi_input_setup();
1017 hp_wmi_platform_dev =
1018 platform_device_register_simple("hp-wmi", -1, NULL, 0);
1019 if (IS_ERR(hp_wmi_platform_dev)) {
1020 err = PTR_ERR(hp_wmi_platform_dev);
1021 goto err_destroy_input;
1024 err = platform_driver_probe(&hp_wmi_driver, hp_wmi_bios_setup);
1026 goto err_unregister_device;
1031 err_unregister_device:
1032 platform_device_unregister(hp_wmi_platform_dev);
1035 hp_wmi_input_destroy();
1039 module_init(hp_wmi_init);
1041 static void __exit hp_wmi_exit(void)
1043 if (wmi_has_guid(HPWMI_EVENT_GUID))
1044 hp_wmi_input_destroy();
1046 if (hp_wmi_platform_dev) {
1047 platform_device_unregister(hp_wmi_platform_dev);
1048 platform_driver_unregister(&hp_wmi_driver);
1051 module_exit(hp_wmi_exit);