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,
88 enum hp_wmi_commandtype {
89 HPWMI_DISPLAY_QUERY = 0x01,
90 HPWMI_HDDTEMP_QUERY = 0x02,
91 HPWMI_ALS_QUERY = 0x03,
92 HPWMI_HARDWARE_QUERY = 0x04,
93 HPWMI_WIRELESS_QUERY = 0x05,
94 HPWMI_BATTERY_QUERY = 0x07,
95 HPWMI_BIOS_QUERY = 0x09,
96 HPWMI_FEATURE_QUERY = 0x0b,
97 HPWMI_HOTKEY_QUERY = 0x0c,
98 HPWMI_FEATURE2_QUERY = 0x0d,
99 HPWMI_WIRELESS2_QUERY = 0x1b,
100 HPWMI_POSTCODEERROR_QUERY = 0x2a,
103 enum hp_wmi_command {
109 enum hp_wmi_hardware_mask {
110 HPWMI_DOCK_MASK = 0x01,
111 HPWMI_TABLET_MASK = 0x04,
119 enum hp_return_value {
120 HPWMI_RET_WRONG_SIGNATURE = 0x02,
121 HPWMI_RET_UNKNOWN_COMMAND = 0x03,
122 HPWMI_RET_UNKNOWN_CMDTYPE = 0x04,
123 HPWMI_RET_INVALID_PARAMETERS = 0x05,
126 enum hp_wireless2_bits {
127 HPWMI_POWER_STATE = 0x01,
128 HPWMI_POWER_SOFT = 0x02,
129 HPWMI_POWER_BIOS = 0x04,
130 HPWMI_POWER_HARD = 0x08,
133 #define IS_HWBLOCKED(x) ((x & (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) \
134 != (HPWMI_POWER_BIOS | HPWMI_POWER_HARD))
135 #define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT)
137 struct bios_rfkill2_device_state {
142 u16 subsys_vendor_id;
143 u16 subsys_product_id;
149 /* 7 devices fit into the 128 byte buffer */
150 #define HPWMI_MAX_RFKILL2_DEVICES 7
152 struct bios_rfkill2_state {
156 struct bios_rfkill2_device_state device[HPWMI_MAX_RFKILL2_DEVICES];
159 static const struct key_entry hp_wmi_keymap[] = {
160 { KE_KEY, 0x02, { KEY_BRIGHTNESSUP } },
161 { KE_KEY, 0x03, { KEY_BRIGHTNESSDOWN } },
162 { KE_KEY, 0x20e6, { KEY_PROG1 } },
163 { KE_KEY, 0x20e8, { KEY_MEDIA } },
164 { KE_KEY, 0x2142, { KEY_MEDIA } },
165 { KE_KEY, 0x213b, { KEY_INFO } },
166 { KE_KEY, 0x2169, { KEY_ROTATE_DISPLAY } },
167 { KE_KEY, 0x216a, { KEY_SETUP } },
168 { KE_KEY, 0x231b, { KEY_HELP } },
172 static struct input_dev *hp_wmi_input_dev;
173 static struct platform_device *hp_wmi_platform_dev;
175 static struct rfkill *wifi_rfkill;
176 static struct rfkill *bluetooth_rfkill;
177 static struct rfkill *wwan_rfkill;
179 struct rfkill2_device {
182 struct rfkill *rfkill;
185 static int rfkill2_count;
186 static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES];
188 /* map output size to the corresponding WMI method id */
189 static inline int encode_outsize_for_pvsz(int outsize)
205 * hp_wmi_perform_query
207 * query: The commandtype (enum hp_wmi_commandtype)
208 * write: The command (enum hp_wmi_command)
209 * buffer: Buffer used as input and/or output
210 * insize: Size of input buffer
211 * outsize: Size of output buffer
213 * returns zero on success
214 * an HP WMI query specific error code (which is positive)
215 * -EINVAL if the query was not successful at all
216 * -EINVAL if the output buffer size exceeds buffersize
218 * Note: The buffersize must at least be the maximum of the input and output
219 * size. E.g. Battery info query is defined to have 1 byte input
220 * and 128 byte output. The caller would do:
221 * buffer = kzalloc(128, GFP_KERNEL);
222 * ret = hp_wmi_perform_query(HPWMI_BATTERY_QUERY, HPWMI_READ, buffer, 1, 128)
224 static int hp_wmi_perform_query(int query, enum hp_wmi_command command,
225 void *buffer, int insize, int outsize)
228 struct bios_return *bios_return;
230 union acpi_object *obj;
231 struct bios_args args = {
232 .signature = 0x55434553,
234 .commandtype = query,
238 struct acpi_buffer input = { sizeof(struct bios_args), &args };
239 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
242 mid = encode_outsize_for_pvsz(outsize);
243 if (WARN_ON(mid < 0))
246 if (WARN_ON(insize > sizeof(args.data)))
248 memcpy(&args.data[0], buffer, insize);
250 wmi_evaluate_method(HPWMI_BIOS_GUID, 0, mid, &input, &output);
252 obj = output.pointer;
257 if (obj->type != ACPI_TYPE_BUFFER) {
262 bios_return = (struct bios_return *)obj->buffer.pointer;
263 ret = bios_return->return_code;
266 if (ret != HPWMI_RET_UNKNOWN_CMDTYPE)
267 pr_warn("query 0x%x returned error 0x%x\n", query, ret);
271 /* Ignore output data of zero size */
275 actual_outsize = min(outsize, (int)(obj->buffer.length - sizeof(*bios_return)));
276 memcpy(buffer, obj->buffer.pointer + sizeof(*bios_return), actual_outsize);
277 memset(buffer + actual_outsize, 0, outsize - actual_outsize);
284 static int hp_wmi_read_int(int query)
288 ret = hp_wmi_perform_query(query, HPWMI_READ, &val,
289 sizeof(val), sizeof(val));
292 return ret < 0 ? ret : -EINVAL;
297 static int hp_wmi_hw_state(int mask)
299 int state = hp_wmi_read_int(HPWMI_HARDWARE_QUERY);
304 return !!(state & mask);
307 static int __init hp_wmi_bios_2008_later(void)
310 int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, HPWMI_READ, &state,
311 sizeof(state), sizeof(state));
315 return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO;
318 static int __init hp_wmi_bios_2009_later(void)
321 int ret = hp_wmi_perform_query(HPWMI_FEATURE2_QUERY, HPWMI_READ, &state,
322 sizeof(state), sizeof(state));
326 return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO;
329 static int __init hp_wmi_enable_hotkeys(void)
332 int ret = hp_wmi_perform_query(HPWMI_BIOS_QUERY, HPWMI_WRITE, &value,
335 return ret <= 0 ? ret : -EINVAL;
338 static int hp_wmi_set_block(void *data, bool blocked)
340 enum hp_wmi_radio r = (enum hp_wmi_radio) data;
341 int query = BIT(r + 8) | ((!blocked) << r);
344 ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_WRITE,
345 &query, sizeof(query), 0);
347 return ret <= 0 ? ret : -EINVAL;
350 static const struct rfkill_ops hp_wmi_rfkill_ops = {
351 .set_block = hp_wmi_set_block,
354 static bool hp_wmi_get_sw_state(enum hp_wmi_radio r)
356 int mask = 0x200 << (r * 8);
358 int wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY);
360 /* TBD: Pass error */
361 WARN_ONCE(wireless < 0, "error executing HPWMI_WIRELESS_QUERY");
363 return !(wireless & mask);
366 static bool hp_wmi_get_hw_state(enum hp_wmi_radio r)
368 int mask = 0x800 << (r * 8);
370 int wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY);
372 /* TBD: Pass error */
373 WARN_ONCE(wireless < 0, "error executing HPWMI_WIRELESS_QUERY");
375 return !(wireless & mask);
378 static int hp_wmi_rfkill2_set_block(void *data, bool blocked)
380 int rfkill_id = (int)(long)data;
381 char buffer[4] = { 0x01, 0x00, rfkill_id, !blocked };
384 ret = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_WRITE,
385 buffer, sizeof(buffer), 0);
387 return ret <= 0 ? ret : -EINVAL;
390 static const struct rfkill_ops hp_wmi_rfkill2_ops = {
391 .set_block = hp_wmi_rfkill2_set_block,
394 static int hp_wmi_rfkill2_refresh(void)
396 struct bios_rfkill2_state state;
399 err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state,
400 sizeof(state), sizeof(state));
404 for (i = 0; i < rfkill2_count; i++) {
405 int num = rfkill2[i].num;
406 struct bios_rfkill2_device_state *devstate;
407 devstate = &state.device[num];
409 if (num >= state.count ||
410 devstate->rfkill_id != rfkill2[i].id) {
411 pr_warn("power configuration of the wireless devices unexpectedly changed\n");
415 rfkill_set_states(rfkill2[i].rfkill,
416 IS_SWBLOCKED(devstate->power),
417 IS_HWBLOCKED(devstate->power));
423 static ssize_t display_show(struct device *dev, struct device_attribute *attr,
426 int value = hp_wmi_read_int(HPWMI_DISPLAY_QUERY);
429 return sprintf(buf, "%d\n", value);
432 static ssize_t hddtemp_show(struct device *dev, struct device_attribute *attr,
435 int value = hp_wmi_read_int(HPWMI_HDDTEMP_QUERY);
438 return sprintf(buf, "%d\n", value);
441 static ssize_t als_show(struct device *dev, struct device_attribute *attr,
444 int value = hp_wmi_read_int(HPWMI_ALS_QUERY);
447 return sprintf(buf, "%d\n", value);
450 static ssize_t dock_show(struct device *dev, struct device_attribute *attr,
453 int value = hp_wmi_hw_state(HPWMI_DOCK_MASK);
456 return sprintf(buf, "%d\n", value);
459 static ssize_t tablet_show(struct device *dev, struct device_attribute *attr,
462 int value = hp_wmi_hw_state(HPWMI_TABLET_MASK);
465 return sprintf(buf, "%d\n", value);
468 static ssize_t postcode_show(struct device *dev, struct device_attribute *attr,
471 /* Get the POST error code of previous boot failure. */
472 int value = hp_wmi_read_int(HPWMI_POSTCODEERROR_QUERY);
475 return sprintf(buf, "0x%x\n", value);
478 static ssize_t als_store(struct device *dev, struct device_attribute *attr,
479 const char *buf, size_t count)
484 ret = kstrtou32(buf, 10, &tmp);
488 ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, HPWMI_WRITE, &tmp,
489 sizeof(tmp), sizeof(tmp));
491 return ret < 0 ? ret : -EINVAL;
496 static ssize_t postcode_store(struct device *dev, struct device_attribute *attr,
497 const char *buf, size_t count)
499 long unsigned int tmp2;
503 ret = kstrtoul(buf, 10, &tmp2);
504 if (!ret && tmp2 != 1)
509 /* Clear the POST error code. It is kept until until cleared. */
511 ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, HPWMI_WRITE, &tmp,
512 sizeof(tmp), sizeof(tmp));
516 return ret < 0 ? ret : -EINVAL;
521 static DEVICE_ATTR_RO(display);
522 static DEVICE_ATTR_RO(hddtemp);
523 static DEVICE_ATTR_RW(als);
524 static DEVICE_ATTR_RO(dock);
525 static DEVICE_ATTR_RO(tablet);
526 static DEVICE_ATTR_RW(postcode);
528 static void hp_wmi_notify(u32 value, void *context)
530 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
531 u32 event_id, event_data;
532 union acpi_object *obj;
537 status = wmi_get_event_data(value, &response);
538 if (status != AE_OK) {
539 pr_info("bad event status 0x%x\n", status);
543 obj = (union acpi_object *)response.pointer;
547 if (obj->type != ACPI_TYPE_BUFFER) {
548 pr_info("Unknown response received %d\n", obj->type);
554 * Depending on ACPI version the concatenation of id and event data
555 * inside _WED function will result in a 8 or 16 byte buffer.
557 location = (u32 *)obj->buffer.pointer;
558 if (obj->buffer.length == 8) {
559 event_id = *location;
560 event_data = *(location + 1);
561 } else if (obj->buffer.length == 16) {
562 event_id = *location;
563 event_data = *(location + 2);
565 pr_info("Unknown buffer length %d\n", obj->buffer.length);
572 case HPWMI_DOCK_EVENT:
573 if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit))
574 input_report_switch(hp_wmi_input_dev, SW_DOCK,
575 hp_wmi_hw_state(HPWMI_DOCK_MASK));
576 if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit))
577 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
578 hp_wmi_hw_state(HPWMI_TABLET_MASK));
579 input_sync(hp_wmi_input_dev);
583 case HPWMI_SMART_ADAPTER:
585 case HPWMI_BEZEL_BUTTON:
586 key_code = hp_wmi_read_int(HPWMI_HOTKEY_QUERY);
590 if (!sparse_keymap_report_event(hp_wmi_input_dev,
592 pr_info("Unknown key code - 0x%x\n", key_code);
596 hp_wmi_rfkill2_refresh();
601 rfkill_set_states(wifi_rfkill,
602 hp_wmi_get_sw_state(HPWMI_WIFI),
603 hp_wmi_get_hw_state(HPWMI_WIFI));
604 if (bluetooth_rfkill)
605 rfkill_set_states(bluetooth_rfkill,
606 hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
607 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
609 rfkill_set_states(wwan_rfkill,
610 hp_wmi_get_sw_state(HPWMI_WWAN),
611 hp_wmi_get_hw_state(HPWMI_WWAN));
613 case HPWMI_CPU_BATTERY_THROTTLE:
614 pr_info("Unimplemented CPU throttle because of 3 Cell battery event detected\n");
616 case HPWMI_LOCK_SWITCH:
618 case HPWMI_LID_SWITCH:
620 case HPWMI_SCREEN_ROTATION:
622 case HPWMI_COOLSENSE_SYSTEM_MOBILE:
624 case HPWMI_COOLSENSE_SYSTEM_HOT:
626 case HPWMI_PROXIMITY_SENSOR:
628 case HPWMI_BACKLIT_KB_BRIGHTNESS:
630 case HPWMI_PEAKSHIFT_PERIOD:
632 case HPWMI_BATTERY_CHARGE_PERIOD:
635 pr_info("Unknown event_id - %d - 0x%x\n", event_id, event_data);
640 static int __init hp_wmi_input_setup(void)
645 hp_wmi_input_dev = input_allocate_device();
646 if (!hp_wmi_input_dev)
649 hp_wmi_input_dev->name = "HP WMI hotkeys";
650 hp_wmi_input_dev->phys = "wmi/input0";
651 hp_wmi_input_dev->id.bustype = BUS_HOST;
653 __set_bit(EV_SW, hp_wmi_input_dev->evbit);
656 val = hp_wmi_hw_state(HPWMI_DOCK_MASK);
658 __set_bit(SW_DOCK, hp_wmi_input_dev->swbit);
659 input_report_switch(hp_wmi_input_dev, SW_DOCK, val);
663 if (enable_tablet_mode_sw > 0) {
664 val = hp_wmi_hw_state(HPWMI_TABLET_MASK);
666 __set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit);
667 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, val);
671 err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL);
675 /* Set initial hardware state */
676 input_sync(hp_wmi_input_dev);
678 if (!hp_wmi_bios_2009_later() && hp_wmi_bios_2008_later())
679 hp_wmi_enable_hotkeys();
681 status = wmi_install_notify_handler(HPWMI_EVENT_GUID, hp_wmi_notify, NULL);
682 if (ACPI_FAILURE(status)) {
687 err = input_register_device(hp_wmi_input_dev);
689 goto err_uninstall_notifier;
693 err_uninstall_notifier:
694 wmi_remove_notify_handler(HPWMI_EVENT_GUID);
696 input_free_device(hp_wmi_input_dev);
700 static void hp_wmi_input_destroy(void)
702 wmi_remove_notify_handler(HPWMI_EVENT_GUID);
703 input_unregister_device(hp_wmi_input_dev);
706 static void cleanup_sysfs(struct platform_device *device)
708 device_remove_file(&device->dev, &dev_attr_display);
709 device_remove_file(&device->dev, &dev_attr_hddtemp);
710 device_remove_file(&device->dev, &dev_attr_als);
711 device_remove_file(&device->dev, &dev_attr_dock);
712 device_remove_file(&device->dev, &dev_attr_tablet);
713 device_remove_file(&device->dev, &dev_attr_postcode);
716 static int __init hp_wmi_rfkill_setup(struct platform_device *device)
720 wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY);
724 err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_WRITE, &wireless,
725 sizeof(wireless), 0);
729 if (wireless & 0x1) {
730 wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev,
733 (void *) HPWMI_WIFI);
736 rfkill_init_sw_state(wifi_rfkill,
737 hp_wmi_get_sw_state(HPWMI_WIFI));
738 rfkill_set_hw_state(wifi_rfkill,
739 hp_wmi_get_hw_state(HPWMI_WIFI));
740 err = rfkill_register(wifi_rfkill);
742 goto register_wifi_error;
745 if (wireless & 0x2) {
746 bluetooth_rfkill = rfkill_alloc("hp-bluetooth", &device->dev,
747 RFKILL_TYPE_BLUETOOTH,
749 (void *) HPWMI_BLUETOOTH);
750 if (!bluetooth_rfkill) {
752 goto register_bluetooth_error;
754 rfkill_init_sw_state(bluetooth_rfkill,
755 hp_wmi_get_sw_state(HPWMI_BLUETOOTH));
756 rfkill_set_hw_state(bluetooth_rfkill,
757 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
758 err = rfkill_register(bluetooth_rfkill);
760 goto register_bluetooth_error;
763 if (wireless & 0x4) {
764 wwan_rfkill = rfkill_alloc("hp-wwan", &device->dev,
767 (void *) HPWMI_WWAN);
770 goto register_wwan_error;
772 rfkill_init_sw_state(wwan_rfkill,
773 hp_wmi_get_sw_state(HPWMI_WWAN));
774 rfkill_set_hw_state(wwan_rfkill,
775 hp_wmi_get_hw_state(HPWMI_WWAN));
776 err = rfkill_register(wwan_rfkill);
778 goto register_wwan_error;
784 rfkill_destroy(wwan_rfkill);
786 if (bluetooth_rfkill)
787 rfkill_unregister(bluetooth_rfkill);
788 register_bluetooth_error:
789 rfkill_destroy(bluetooth_rfkill);
790 bluetooth_rfkill = NULL;
792 rfkill_unregister(wifi_rfkill);
794 rfkill_destroy(wifi_rfkill);
799 static int __init hp_wmi_rfkill2_setup(struct platform_device *device)
801 struct bios_rfkill2_state state;
804 err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state,
805 sizeof(state), sizeof(state));
807 return err < 0 ? err : -EINVAL;
809 if (state.count > HPWMI_MAX_RFKILL2_DEVICES) {
810 pr_warn("unable to parse 0x1b query output\n");
814 for (i = 0; i < state.count; i++) {
815 struct rfkill *rfkill;
816 enum rfkill_type type;
818 switch (state.device[i].radio_type) {
820 type = RFKILL_TYPE_WLAN;
823 case HPWMI_BLUETOOTH:
824 type = RFKILL_TYPE_BLUETOOTH;
825 name = "hp-bluetooth";
828 type = RFKILL_TYPE_WWAN;
832 type = RFKILL_TYPE_GPS;
836 pr_warn("unknown device type 0x%x\n",
837 state.device[i].radio_type);
841 if (!state.device[i].vendor_id) {
842 pr_warn("zero device %d while %d reported\n",
847 rfkill = rfkill_alloc(name, &device->dev, type,
848 &hp_wmi_rfkill2_ops, (void *)(long)i);
854 rfkill2[rfkill2_count].id = state.device[i].rfkill_id;
855 rfkill2[rfkill2_count].num = i;
856 rfkill2[rfkill2_count].rfkill = rfkill;
858 rfkill_init_sw_state(rfkill,
859 IS_SWBLOCKED(state.device[i].power));
860 rfkill_set_hw_state(rfkill,
861 IS_HWBLOCKED(state.device[i].power));
863 if (!(state.device[i].power & HPWMI_POWER_BIOS))
864 pr_info("device %s blocked by BIOS\n", name);
866 err = rfkill_register(rfkill);
868 rfkill_destroy(rfkill);
877 for (; rfkill2_count > 0; rfkill2_count--) {
878 rfkill_unregister(rfkill2[rfkill2_count - 1].rfkill);
879 rfkill_destroy(rfkill2[rfkill2_count - 1].rfkill);
884 static int __init hp_wmi_bios_setup(struct platform_device *device)
888 /* clear detected rfkill devices */
890 bluetooth_rfkill = NULL;
894 if (hp_wmi_rfkill_setup(device))
895 hp_wmi_rfkill2_setup(device);
897 err = device_create_file(&device->dev, &dev_attr_display);
899 goto add_sysfs_error;
900 err = device_create_file(&device->dev, &dev_attr_hddtemp);
902 goto add_sysfs_error;
903 err = device_create_file(&device->dev, &dev_attr_als);
905 goto add_sysfs_error;
906 err = device_create_file(&device->dev, &dev_attr_dock);
908 goto add_sysfs_error;
909 err = device_create_file(&device->dev, &dev_attr_tablet);
911 goto add_sysfs_error;
912 err = device_create_file(&device->dev, &dev_attr_postcode);
914 goto add_sysfs_error;
918 cleanup_sysfs(device);
922 static int __exit hp_wmi_bios_remove(struct platform_device *device)
925 cleanup_sysfs(device);
927 for (i = 0; i < rfkill2_count; i++) {
928 rfkill_unregister(rfkill2[i].rfkill);
929 rfkill_destroy(rfkill2[i].rfkill);
933 rfkill_unregister(wifi_rfkill);
934 rfkill_destroy(wifi_rfkill);
936 if (bluetooth_rfkill) {
937 rfkill_unregister(bluetooth_rfkill);
938 rfkill_destroy(bluetooth_rfkill);
941 rfkill_unregister(wwan_rfkill);
942 rfkill_destroy(wwan_rfkill);
948 static int hp_wmi_resume_handler(struct device *device)
951 * Hardware state may have changed while suspended, so trigger
952 * input events for the current state. As this is a switch,
953 * the input layer will only actually pass it on if the state
956 if (hp_wmi_input_dev) {
957 if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit))
958 input_report_switch(hp_wmi_input_dev, SW_DOCK,
959 hp_wmi_hw_state(HPWMI_DOCK_MASK));
960 if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit))
961 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
962 hp_wmi_hw_state(HPWMI_TABLET_MASK));
963 input_sync(hp_wmi_input_dev);
967 hp_wmi_rfkill2_refresh();
970 rfkill_set_states(wifi_rfkill,
971 hp_wmi_get_sw_state(HPWMI_WIFI),
972 hp_wmi_get_hw_state(HPWMI_WIFI));
973 if (bluetooth_rfkill)
974 rfkill_set_states(bluetooth_rfkill,
975 hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
976 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
978 rfkill_set_states(wwan_rfkill,
979 hp_wmi_get_sw_state(HPWMI_WWAN),
980 hp_wmi_get_hw_state(HPWMI_WWAN));
985 static const struct dev_pm_ops hp_wmi_pm_ops = {
986 .resume = hp_wmi_resume_handler,
987 .restore = hp_wmi_resume_handler,
990 static struct platform_driver hp_wmi_driver = {
993 .pm = &hp_wmi_pm_ops,
995 .remove = __exit_p(hp_wmi_bios_remove),
998 static int __init hp_wmi_init(void)
1000 int event_capable = wmi_has_guid(HPWMI_EVENT_GUID);
1001 int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID);
1004 if (!bios_capable && !event_capable)
1007 if (event_capable) {
1008 err = hp_wmi_input_setup();
1014 hp_wmi_platform_dev =
1015 platform_device_register_simple("hp-wmi", -1, NULL, 0);
1016 if (IS_ERR(hp_wmi_platform_dev)) {
1017 err = PTR_ERR(hp_wmi_platform_dev);
1018 goto err_destroy_input;
1021 err = platform_driver_probe(&hp_wmi_driver, hp_wmi_bios_setup);
1023 goto err_unregister_device;
1028 err_unregister_device:
1029 platform_device_unregister(hp_wmi_platform_dev);
1032 hp_wmi_input_destroy();
1036 module_init(hp_wmi_init);
1038 static void __exit hp_wmi_exit(void)
1040 if (wmi_has_guid(HPWMI_EVENT_GUID))
1041 hp_wmi_input_destroy();
1043 if (hp_wmi_platform_dev) {
1044 platform_device_unregister(hp_wmi_platform_dev);
1045 platform_driver_unregister(&hp_wmi_driver);
1048 module_exit(hp_wmi_exit);