blob: 1a779bbfb87d2b8de61e964734981f4f9a6c891e [file] [log] [blame]
Matthew Garrett62ec30d2008-07-25 01:45:39 -07001/*
2 * HP WMI hotkeys
3 *
4 * Copyright (C) 2008 Red Hat <mjg@redhat.com>
Anssi Hannulac0b9c642011-02-20 20:07:26 +02005 * Copyright (C) 2010, 2011 Anssi Hannula <anssi.hannula@iki.fi>
Matthew Garrett62ec30d2008-07-25 01:45:39 -07006 *
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>
11 *
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.
16 *
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.
21 *
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
25 */
26
Joe Perchesb5a42232011-03-29 15:21:41 -070027#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
28
Matthew Garrett62ec30d2008-07-25 01:45:39 -070029#include <linux/kernel.h>
30#include <linux/module.h>
31#include <linux/init.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090032#include <linux/slab.h>
Matthew Garrett62ec30d2008-07-25 01:45:39 -070033#include <linux/types.h>
34#include <linux/input.h>
Dmitry Torokhov4d291ed2010-08-04 22:30:13 -070035#include <linux/input/sparse-keymap.h>
Matthew Garrett62ec30d2008-07-25 01:45:39 -070036#include <linux/platform_device.h>
37#include <linux/acpi.h>
38#include <linux/rfkill.h>
39#include <linux/string.h>
40
41MODULE_AUTHOR("Matthew Garrett <mjg59@srcf.ucam.org>");
42MODULE_DESCRIPTION("HP laptop WMI hotkeys driver");
43MODULE_LICENSE("GPL");
44
45MODULE_ALIAS("wmi:95F24279-4D7B-4334-9387-ACCDC67EF61C");
46MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4");
47
48#define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C"
49#define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4"
50
51#define HPWMI_DISPLAY_QUERY 0x1
52#define HPWMI_HDDTEMP_QUERY 0x2
53#define HPWMI_ALS_QUERY 0x3
Matthew Garrett871043b2009-06-01 15:25:45 +010054#define HPWMI_HARDWARE_QUERY 0x4
Matthew Garrett62ec30d2008-07-25 01:45:39 -070055#define HPWMI_WIRELESS_QUERY 0x5
Matthew Garretta8823ae2008-09-02 14:36:03 -070056#define HPWMI_HOTKEY_QUERY 0xc
Anssi Hannulac0b9c642011-02-20 20:07:26 +020057#define HPWMI_WIRELESS2_QUERY 0x1b
Matthew Garrett62ec30d2008-07-25 01:45:39 -070058
Alan Jenkinse5fbba82009-07-21 12:14:01 +010059enum hp_wmi_radio {
60 HPWMI_WIFI = 0,
61 HPWMI_BLUETOOTH = 1,
62 HPWMI_WWAN = 2,
Trepák Vilmos4fca7ce2012-10-11 12:51:00 +020063 HPWMI_GPS = 3,
Alan Jenkinse5fbba82009-07-21 12:14:01 +010064};
65
Thomas Renninger751ae802010-05-21 16:18:09 +020066enum hp_wmi_event_ids {
67 HPWMI_DOCK_EVENT = 1,
Thomas Renninger1bbdfd52010-05-21 16:18:13 +020068 HPWMI_PARK_HDD = 2,
69 HPWMI_SMART_ADAPTER = 3,
Thomas Renninger751ae802010-05-21 16:18:09 +020070 HPWMI_BEZEL_BUTTON = 4,
71 HPWMI_WIRELESS = 5,
Thomas Renninger1bbdfd52010-05-21 16:18:13 +020072 HPWMI_CPU_BATTERY_THROTTLE = 6,
73 HPWMI_LOCK_SWITCH = 7,
Thomas Renninger751ae802010-05-21 16:18:09 +020074};
75
Matthew Garrett62ec30d2008-07-25 01:45:39 -070076struct bios_args {
77 u32 signature;
78 u32 command;
79 u32 commandtype;
80 u32 datasize;
Matthew Garretta8ec1052010-08-23 15:52:34 -040081 u32 data;
Matthew Garrett62ec30d2008-07-25 01:45:39 -070082};
83
84struct bios_return {
85 u32 sigpass;
86 u32 return_code;
Matthew Garrett62ec30d2008-07-25 01:45:39 -070087};
88
Anssi Hannula9af0e0f2011-02-20 20:07:20 +020089enum hp_return_value {
90 HPWMI_RET_WRONG_SIGNATURE = 0x02,
91 HPWMI_RET_UNKNOWN_COMMAND = 0x03,
92 HPWMI_RET_UNKNOWN_CMDTYPE = 0x04,
93 HPWMI_RET_INVALID_PARAMETERS = 0x05,
94};
95
Anssi Hannulac0b9c642011-02-20 20:07:26 +020096enum hp_wireless2_bits {
97 HPWMI_POWER_STATE = 0x01,
98 HPWMI_POWER_SOFT = 0x02,
99 HPWMI_POWER_BIOS = 0x04,
100 HPWMI_POWER_HARD = 0x08,
101};
102
103#define IS_HWBLOCKED(x) ((x & (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) \
104 != (HPWMI_POWER_BIOS | HPWMI_POWER_HARD))
105#define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT)
106
107struct bios_rfkill2_device_state {
108 u8 radio_type;
109 u8 bus_type;
110 u16 vendor_id;
111 u16 product_id;
112 u16 subsys_vendor_id;
113 u16 subsys_product_id;
114 u8 rfkill_id;
115 u8 power;
116 u8 unknown[4];
117};
118
119/* 7 devices fit into the 128 byte buffer */
120#define HPWMI_MAX_RFKILL2_DEVICES 7
121
122struct bios_rfkill2_state {
123 u8 unknown[7];
124 u8 count;
125 u8 pad[8];
126 struct bios_rfkill2_device_state device[HPWMI_MAX_RFKILL2_DEVICES];
127};
128
Dmitry Torokhov4d291ed2010-08-04 22:30:13 -0700129static const struct key_entry hp_wmi_keymap[] = {
130 { KE_KEY, 0x02, { KEY_BRIGHTNESSUP } },
131 { KE_KEY, 0x03, { KEY_BRIGHTNESSDOWN } },
132 { KE_KEY, 0x20e6, { KEY_PROG1 } },
133 { KE_KEY, 0x20e8, { KEY_MEDIA } },
134 { KE_KEY, 0x2142, { KEY_MEDIA } },
135 { KE_KEY, 0x213b, { KEY_INFO } },
136 { KE_KEY, 0x2169, { KEY_DIRECTION } },
137 { KE_KEY, 0x231b, { KEY_HELP } },
138 { KE_END, 0 }
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700139};
140
141static struct input_dev *hp_wmi_input_dev;
142static struct platform_device *hp_wmi_platform_dev;
143
144static struct rfkill *wifi_rfkill;
145static struct rfkill *bluetooth_rfkill;
146static struct rfkill *wwan_rfkill;
Trepák Vilmos4fca7ce2012-10-11 12:51:00 +0200147static struct rfkill *gps_rfkill;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700148
Anssi Hannulac0b9c642011-02-20 20:07:26 +0200149struct rfkill2_device {
150 u8 id;
151 int num;
152 struct rfkill *rfkill;
153};
154
155static int rfkill2_count;
156static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES];
157
Thomas Renninger6d96e002010-05-21 16:42:40 +0200158/*
159 * hp_wmi_perform_query
160 *
161 * query: The commandtype -> What should be queried
162 * write: The command -> 0 read, 1 write, 3 ODM specific
163 * buffer: Buffer used as input and/or output
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200164 * insize: Size of input buffer
165 * outsize: Size of output buffer
Thomas Renninger6d96e002010-05-21 16:42:40 +0200166 *
167 * returns zero on success
168 * an HP WMI query specific error code (which is positive)
169 * -EINVAL if the query was not successful at all
170 * -EINVAL if the output buffer size exceeds buffersize
171 *
172 * Note: The buffersize must at least be the maximum of the input and output
173 * size. E.g. Battery info query (0x7) is defined to have 1 byte input
174 * and 128 byte output. The caller would do:
175 * buffer = kzalloc(128, GFP_KERNEL);
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200176 * ret = hp_wmi_perform_query(0x7, 0, buffer, 1, 128)
Thomas Renninger6d96e002010-05-21 16:42:40 +0200177 */
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200178static int hp_wmi_perform_query(int query, int write, void *buffer,
179 int insize, int outsize)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700180{
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200181 struct bios_return *bios_return;
182 int actual_outsize;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700183 union acpi_object *obj;
184 struct bios_args args = {
185 .signature = 0x55434553,
186 .command = write ? 0x2 : 0x1,
187 .commandtype = query,
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200188 .datasize = insize,
189 .data = 0,
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700190 };
191 struct acpi_buffer input = { sizeof(struct bios_args), &args };
192 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
Eric Dumazet04018462011-07-11 12:22:21 +0200193 u32 rc;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700194
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200195 if (WARN_ON(insize > sizeof(args.data)))
196 return -EINVAL;
197 memcpy(&args.data, buffer, insize);
198
Anssi Hannula25bb0672011-02-20 20:07:21 +0200199 wmi_evaluate_method(HPWMI_BIOS_GUID, 0, 0x3, &input, &output);
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700200
201 obj = output.pointer;
202
Thomas Renninger44ef00e2009-12-18 15:29:23 +0100203 if (!obj)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700204 return -EINVAL;
Thomas Renninger44ef00e2009-12-18 15:29:23 +0100205 else if (obj->type != ACPI_TYPE_BUFFER) {
206 kfree(obj);
207 return -EINVAL;
208 }
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700209
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200210 bios_return = (struct bios_return *)obj->buffer.pointer;
Eric Dumazet04018462011-07-11 12:22:21 +0200211 rc = bios_return->return_code;
Thomas Renninger6d96e002010-05-21 16:42:40 +0200212
Eric Dumazet04018462011-07-11 12:22:21 +0200213 if (rc) {
214 if (rc != HPWMI_RET_UNKNOWN_CMDTYPE)
215 pr_warn("query 0x%x returned error 0x%x\n", query, rc);
Anssi Hannula9af0e0f2011-02-20 20:07:20 +0200216 kfree(obj);
Eric Dumazet04018462011-07-11 12:22:21 +0200217 return rc;
Anssi Hannula9af0e0f2011-02-20 20:07:20 +0200218 }
219
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200220 if (!outsize) {
221 /* ignore output data */
222 kfree(obj);
223 return 0;
224 }
Zeng Zhaoming53c96df2010-11-19 00:46:19 +0800225
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200226 actual_outsize = min(outsize, (int)(obj->buffer.length - sizeof(*bios_return)));
227 memcpy(buffer, obj->buffer.pointer + sizeof(*bios_return), actual_outsize);
228 memset(buffer + actual_outsize, 0, outsize - actual_outsize);
Zeng Zhaoming53c96df2010-11-19 00:46:19 +0800229 kfree(obj);
Thomas Renninger6d96e002010-05-21 16:42:40 +0200230 return 0;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700231}
232
233static int hp_wmi_display_state(void)
234{
Matthew Garretta8ec1052010-08-23 15:52:34 -0400235 int state = 0;
236 int ret = hp_wmi_perform_query(HPWMI_DISPLAY_QUERY, 0, &state,
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200237 sizeof(state), sizeof(state));
Thomas Renninger6d96e002010-05-21 16:42:40 +0200238 if (ret)
239 return -EINVAL;
240 return state;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700241}
242
243static int hp_wmi_hddtemp_state(void)
244{
Matthew Garretta8ec1052010-08-23 15:52:34 -0400245 int state = 0;
246 int ret = hp_wmi_perform_query(HPWMI_HDDTEMP_QUERY, 0, &state,
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200247 sizeof(state), sizeof(state));
Thomas Renninger6d96e002010-05-21 16:42:40 +0200248 if (ret)
249 return -EINVAL;
250 return state;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700251}
252
253static int hp_wmi_als_state(void)
254{
Matthew Garretta8ec1052010-08-23 15:52:34 -0400255 int state = 0;
256 int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 0, &state,
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200257 sizeof(state), sizeof(state));
Thomas Renninger6d96e002010-05-21 16:42:40 +0200258 if (ret)
259 return -EINVAL;
260 return state;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700261}
262
263static int hp_wmi_dock_state(void)
264{
Matthew Garretta8ec1052010-08-23 15:52:34 -0400265 int state = 0;
266 int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state,
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200267 sizeof(state), sizeof(state));
Matthew Garrett871043b2009-06-01 15:25:45 +0100268
Thomas Renninger6d96e002010-05-21 16:42:40 +0200269 if (ret)
270 return -EINVAL;
Matthew Garrett871043b2009-06-01 15:25:45 +0100271
Thomas Renninger6d96e002010-05-21 16:42:40 +0200272 return state & 0x1;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700273}
274
Matthew Garrett871043b2009-06-01 15:25:45 +0100275static int hp_wmi_tablet_state(void)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700276{
Matthew Garretta8ec1052010-08-23 15:52:34 -0400277 int state = 0;
278 int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state,
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200279 sizeof(state), sizeof(state));
Thomas Renninger6d96e002010-05-21 16:42:40 +0200280 if (ret)
Matthew Garrett871043b2009-06-01 15:25:45 +0100281 return ret;
282
Thomas Renninger6d96e002010-05-21 16:42:40 +0200283 return (state & 0x4) ? 1 : 0;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700284}
285
Johannes Berg19d337d2009-06-02 13:01:37 +0200286static int hp_wmi_set_block(void *data, bool blocked)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700287{
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100288 enum hp_wmi_radio r = (enum hp_wmi_radio) data;
289 int query = BIT(r + 8) | ((!blocked) << r);
Thomas Renninger6d96e002010-05-21 16:42:40 +0200290 int ret;
Johannes Berg19d337d2009-06-02 13:01:37 +0200291
Thomas Renninger6d96e002010-05-21 16:42:40 +0200292 ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1,
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200293 &query, sizeof(query), 0);
Thomas Renninger6d96e002010-05-21 16:42:40 +0200294 if (ret)
295 return -EINVAL;
296 return 0;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700297}
298
Johannes Berg19d337d2009-06-02 13:01:37 +0200299static const struct rfkill_ops hp_wmi_rfkill_ops = {
300 .set_block = hp_wmi_set_block,
301};
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700302
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100303static bool hp_wmi_get_sw_state(enum hp_wmi_radio r)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700304{
Matthew Garretta8ec1052010-08-23 15:52:34 -0400305 int wireless = 0;
Thomas Renninger6d96e002010-05-21 16:42:40 +0200306 int mask;
307 hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0,
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200308 &wireless, sizeof(wireless),
309 sizeof(wireless));
Thomas Renninger6d96e002010-05-21 16:42:40 +0200310 /* TBD: Pass error */
311
312 mask = 0x200 << (r * 8);
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700313
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100314 if (wireless & mask)
Johannes Berg19d337d2009-06-02 13:01:37 +0200315 return false;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700316 else
Johannes Berg19d337d2009-06-02 13:01:37 +0200317 return true;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700318}
319
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100320static bool hp_wmi_get_hw_state(enum hp_wmi_radio r)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700321{
Matthew Garretta8ec1052010-08-23 15:52:34 -0400322 int wireless = 0;
Thomas Renninger6d96e002010-05-21 16:42:40 +0200323 int mask;
324 hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0,
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200325 &wireless, sizeof(wireless),
326 sizeof(wireless));
Thomas Renninger6d96e002010-05-21 16:42:40 +0200327 /* TBD: Pass error */
328
329 mask = 0x800 << (r * 8);
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700330
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100331 if (wireless & mask)
Johannes Berg19d337d2009-06-02 13:01:37 +0200332 return false;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700333 else
Johannes Berg19d337d2009-06-02 13:01:37 +0200334 return true;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700335}
336
Anssi Hannulac0b9c642011-02-20 20:07:26 +0200337static int hp_wmi_rfkill2_set_block(void *data, bool blocked)
338{
339 int rfkill_id = (int)(long)data;
340 char buffer[4] = { 0x01, 0x00, rfkill_id, !blocked };
341
342 if (hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 1,
343 buffer, sizeof(buffer), 0))
344 return -EINVAL;
345 return 0;
346}
347
348static const struct rfkill_ops hp_wmi_rfkill2_ops = {
349 .set_block = hp_wmi_rfkill2_set_block,
350};
351
352static int hp_wmi_rfkill2_refresh(void)
353{
354 int err, i;
355 struct bios_rfkill2_state state;
356
357 err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state,
358 0, sizeof(state));
359 if (err)
360 return err;
361
362 for (i = 0; i < rfkill2_count; i++) {
363 int num = rfkill2[i].num;
364 struct bios_rfkill2_device_state *devstate;
365 devstate = &state.device[num];
366
367 if (num >= state.count ||
368 devstate->rfkill_id != rfkill2[i].id) {
Joe Perchesb5a42232011-03-29 15:21:41 -0700369 pr_warn("power configuration of the wireless devices unexpectedly changed\n");
Anssi Hannulac0b9c642011-02-20 20:07:26 +0200370 continue;
371 }
372
373 rfkill_set_states(rfkill2[i].rfkill,
374 IS_SWBLOCKED(devstate->power),
375 IS_HWBLOCKED(devstate->power));
376 }
377
378 return 0;
379}
380
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700381static ssize_t show_display(struct device *dev, struct device_attribute *attr,
382 char *buf)
383{
384 int value = hp_wmi_display_state();
385 if (value < 0)
386 return -EINVAL;
387 return sprintf(buf, "%d\n", value);
388}
389
390static ssize_t show_hddtemp(struct device *dev, struct device_attribute *attr,
391 char *buf)
392{
393 int value = hp_wmi_hddtemp_state();
394 if (value < 0)
395 return -EINVAL;
396 return sprintf(buf, "%d\n", value);
397}
398
399static ssize_t show_als(struct device *dev, struct device_attribute *attr,
400 char *buf)
401{
402 int value = hp_wmi_als_state();
403 if (value < 0)
404 return -EINVAL;
405 return sprintf(buf, "%d\n", value);
406}
407
408static ssize_t show_dock(struct device *dev, struct device_attribute *attr,
409 char *buf)
410{
411 int value = hp_wmi_dock_state();
412 if (value < 0)
413 return -EINVAL;
414 return sprintf(buf, "%d\n", value);
415}
416
Matthew Garrett871043b2009-06-01 15:25:45 +0100417static ssize_t show_tablet(struct device *dev, struct device_attribute *attr,
418 char *buf)
419{
420 int value = hp_wmi_tablet_state();
421 if (value < 0)
422 return -EINVAL;
423 return sprintf(buf, "%d\n", value);
424}
425
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700426static ssize_t set_als(struct device *dev, struct device_attribute *attr,
427 const char *buf, size_t count)
428{
429 u32 tmp = simple_strtoul(buf, NULL, 10);
Matthew Garretta8ec1052010-08-23 15:52:34 -0400430 int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 1, &tmp,
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200431 sizeof(tmp), sizeof(tmp));
Thomas Renninger6d96e002010-05-21 16:42:40 +0200432 if (ret)
433 return -EINVAL;
434
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700435 return count;
436}
437
438static DEVICE_ATTR(display, S_IRUGO, show_display, NULL);
439static DEVICE_ATTR(hddtemp, S_IRUGO, show_hddtemp, NULL);
440static DEVICE_ATTR(als, S_IRUGO | S_IWUSR, show_als, set_als);
441static DEVICE_ATTR(dock, S_IRUGO, show_dock, NULL);
Matthew Garrett871043b2009-06-01 15:25:45 +0100442static DEVICE_ATTR(tablet, S_IRUGO, show_tablet, NULL);
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700443
Adrian Bunk88429a12008-10-15 22:05:17 -0700444static void hp_wmi_notify(u32 value, void *context)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700445{
446 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700447 union acpi_object *obj;
Thomas Renninger8dda6b02010-05-21 16:41:43 +0200448 u32 event_id, event_data;
Matthew Garretta8ec1052010-08-23 15:52:34 -0400449 int key_code = 0, ret;
Thomas Renninger8dda6b02010-05-21 16:41:43 +0200450 u32 *location;
Len Brownfda11e62009-12-26 23:02:24 -0500451 acpi_status status;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700452
Len Brownfda11e62009-12-26 23:02:24 -0500453 status = wmi_get_event_data(value, &response);
454 if (status != AE_OK) {
Joe Perchesb5a42232011-03-29 15:21:41 -0700455 pr_info("bad event status 0x%x\n", status);
Len Brownfda11e62009-12-26 23:02:24 -0500456 return;
457 }
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700458
459 obj = (union acpi_object *)response.pointer;
460
Thomas Renningerc4775062010-07-29 12:27:59 +0200461 if (!obj)
462 return;
463 if (obj->type != ACPI_TYPE_BUFFER) {
Joe Perchesb5a42232011-03-29 15:21:41 -0700464 pr_info("Unknown response received %d\n", obj->type);
Thomas Renninger44ef00e2009-12-18 15:29:23 +0100465 kfree(obj);
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100466 return;
467 }
468
Thomas Renninger8dda6b02010-05-21 16:41:43 +0200469 /*
470 * Depending on ACPI version the concatenation of id and event data
471 * inside _WED function will result in a 8 or 16 byte buffer.
472 */
473 location = (u32 *)obj->buffer.pointer;
474 if (obj->buffer.length == 8) {
475 event_id = *location;
476 event_data = *(location + 1);
477 } else if (obj->buffer.length == 16) {
478 event_id = *location;
479 event_data = *(location + 2);
480 } else {
Joe Perchesb5a42232011-03-29 15:21:41 -0700481 pr_info("Unknown buffer length %d\n", obj->buffer.length);
Thomas Renninger8dda6b02010-05-21 16:41:43 +0200482 kfree(obj);
483 return;
484 }
Thomas Renninger44ef00e2009-12-18 15:29:23 +0100485 kfree(obj);
Thomas Renninger8dda6b02010-05-21 16:41:43 +0200486
487 switch (event_id) {
Thomas Renninger751ae802010-05-21 16:18:09 +0200488 case HPWMI_DOCK_EVENT:
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100489 input_report_switch(hp_wmi_input_dev, SW_DOCK,
490 hp_wmi_dock_state());
491 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
492 hp_wmi_tablet_state());
493 input_sync(hp_wmi_input_dev);
Thomas Renninger751ae802010-05-21 16:18:09 +0200494 break;
Thomas Renninger1bbdfd52010-05-21 16:18:13 +0200495 case HPWMI_PARK_HDD:
496 break;
497 case HPWMI_SMART_ADAPTER:
498 break;
Thomas Renninger751ae802010-05-21 16:18:09 +0200499 case HPWMI_BEZEL_BUTTON:
Thomas Renninger6d96e002010-05-21 16:42:40 +0200500 ret = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0,
Matthew Garretta8ec1052010-08-23 15:52:34 -0400501 &key_code,
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200502 sizeof(key_code),
Thomas Renninger6d96e002010-05-21 16:42:40 +0200503 sizeof(key_code));
504 if (ret)
505 break;
Dmitry Torokhov4d291ed2010-08-04 22:30:13 -0700506
507 if (!sparse_keymap_report_event(hp_wmi_input_dev,
508 key_code, 1, true))
Joe Perchesb5a42232011-03-29 15:21:41 -0700509 pr_info("Unknown key code - 0x%x\n", key_code);
Thomas Renninger751ae802010-05-21 16:18:09 +0200510 break;
511 case HPWMI_WIRELESS:
Anssi Hannulac0b9c642011-02-20 20:07:26 +0200512 if (rfkill2_count) {
513 hp_wmi_rfkill2_refresh();
514 break;
515 }
516
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100517 if (wifi_rfkill)
518 rfkill_set_states(wifi_rfkill,
519 hp_wmi_get_sw_state(HPWMI_WIFI),
520 hp_wmi_get_hw_state(HPWMI_WIFI));
521 if (bluetooth_rfkill)
522 rfkill_set_states(bluetooth_rfkill,
523 hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
524 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
525 if (wwan_rfkill)
526 rfkill_set_states(wwan_rfkill,
527 hp_wmi_get_sw_state(HPWMI_WWAN),
528 hp_wmi_get_hw_state(HPWMI_WWAN));
Trepák Vilmos4fca7ce2012-10-11 12:51:00 +0200529 if (gps_rfkill)
530 rfkill_set_states(gps_rfkill,
531 hp_wmi_get_sw_state(HPWMI_GPS),
532 hp_wmi_get_hw_state(HPWMI_GPS));
Thomas Renninger751ae802010-05-21 16:18:09 +0200533 break;
Thomas Renninger1bbdfd52010-05-21 16:18:13 +0200534 case HPWMI_CPU_BATTERY_THROTTLE:
Joe Perchesb5a42232011-03-29 15:21:41 -0700535 pr_info("Unimplemented CPU throttle because of 3 Cell battery event detected\n");
Thomas Renninger1bbdfd52010-05-21 16:18:13 +0200536 break;
537 case HPWMI_LOCK_SWITCH:
538 break;
Thomas Renninger751ae802010-05-21 16:18:09 +0200539 default:
Joe Perchesb5a42232011-03-29 15:21:41 -0700540 pr_info("Unknown event_id - %d - 0x%x\n", event_id, event_data);
Thomas Renninger751ae802010-05-21 16:18:09 +0200541 break;
542 }
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700543}
544
545static int __init hp_wmi_input_setup(void)
546{
Dmitry Torokhov4d291ed2010-08-04 22:30:13 -0700547 acpi_status status;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700548 int err;
549
550 hp_wmi_input_dev = input_allocate_device();
Axel Linbc285962010-07-20 15:19:51 -0700551 if (!hp_wmi_input_dev)
552 return -ENOMEM;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700553
554 hp_wmi_input_dev->name = "HP WMI hotkeys";
555 hp_wmi_input_dev->phys = "wmi/input0";
556 hp_wmi_input_dev->id.bustype = BUS_HOST;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700557
Dmitry Torokhov4d291ed2010-08-04 22:30:13 -0700558 __set_bit(EV_SW, hp_wmi_input_dev->evbit);
559 __set_bit(SW_DOCK, hp_wmi_input_dev->swbit);
560 __set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit);
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700561
Dmitry Torokhov4d291ed2010-08-04 22:30:13 -0700562 err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL);
563 if (err)
564 goto err_free_dev;
Matthew Garrett871043b2009-06-01 15:25:45 +0100565
566 /* Set initial hardware state */
567 input_report_switch(hp_wmi_input_dev, SW_DOCK, hp_wmi_dock_state());
568 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
569 hp_wmi_tablet_state());
570 input_sync(hp_wmi_input_dev);
571
Dmitry Torokhov4d291ed2010-08-04 22:30:13 -0700572 status = wmi_install_notify_handler(HPWMI_EVENT_GUID, hp_wmi_notify, NULL);
573 if (ACPI_FAILURE(status)) {
574 err = -EIO;
575 goto err_free_keymap;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700576 }
577
Dmitry Torokhov4d291ed2010-08-04 22:30:13 -0700578 err = input_register_device(hp_wmi_input_dev);
579 if (err)
580 goto err_uninstall_notifier;
581
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700582 return 0;
Dmitry Torokhov4d291ed2010-08-04 22:30:13 -0700583
584 err_uninstall_notifier:
585 wmi_remove_notify_handler(HPWMI_EVENT_GUID);
586 err_free_keymap:
587 sparse_keymap_free(hp_wmi_input_dev);
588 err_free_dev:
589 input_free_device(hp_wmi_input_dev);
590 return err;
591}
592
593static void hp_wmi_input_destroy(void)
594{
595 wmi_remove_notify_handler(HPWMI_EVENT_GUID);
596 sparse_keymap_free(hp_wmi_input_dev);
597 input_unregister_device(hp_wmi_input_dev);
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700598}
599
600static void cleanup_sysfs(struct platform_device *device)
601{
602 device_remove_file(&device->dev, &dev_attr_display);
603 device_remove_file(&device->dev, &dev_attr_hddtemp);
604 device_remove_file(&device->dev, &dev_attr_als);
605 device_remove_file(&device->dev, &dev_attr_dock);
Matthew Garrett871043b2009-06-01 15:25:45 +0100606 device_remove_file(&device->dev, &dev_attr_tablet);
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700607}
608
Greg Kroah-Hartmanb859f152012-12-21 13:18:33 -0800609static int hp_wmi_rfkill_setup(struct platform_device *device)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700610{
611 int err;
Matthew Garretta8ec1052010-08-23 15:52:34 -0400612 int wireless = 0;
Thomas Renninger6d96e002010-05-21 16:42:40 +0200613
Matthew Garretta8ec1052010-08-23 15:52:34 -0400614 err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, &wireless,
Anssi Hannulac3021ea2011-02-20 20:07:22 +0200615 sizeof(wireless), sizeof(wireless));
Thomas Renninger6d96e002010-05-21 16:42:40 +0200616 if (err)
617 return err;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700618
Matthew Garrett3f6e2f12008-09-02 14:36:00 -0700619 if (wireless & 0x1) {
Johannes Berg19d337d2009-06-02 13:01:37 +0200620 wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev,
621 RFKILL_TYPE_WLAN,
622 &hp_wmi_rfkill_ops,
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100623 (void *) HPWMI_WIFI);
Dan Carpenterdd258c02012-05-17 09:48:12 +0300624 if (!wifi_rfkill)
625 return -ENOMEM;
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100626 rfkill_init_sw_state(wifi_rfkill,
627 hp_wmi_get_sw_state(HPWMI_WIFI));
628 rfkill_set_hw_state(wifi_rfkill,
629 hp_wmi_get_hw_state(HPWMI_WIFI));
Larry Fingerfe8e4e02009-01-09 16:40:54 -0800630 err = rfkill_register(wifi_rfkill);
631 if (err)
Johannes Berg19d337d2009-06-02 13:01:37 +0200632 goto register_wifi_error;
Matthew Garrett3f6e2f12008-09-02 14:36:00 -0700633 }
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700634
Matthew Garrett3f6e2f12008-09-02 14:36:00 -0700635 if (wireless & 0x2) {
Johannes Berg19d337d2009-06-02 13:01:37 +0200636 bluetooth_rfkill = rfkill_alloc("hp-bluetooth", &device->dev,
637 RFKILL_TYPE_BLUETOOTH,
638 &hp_wmi_rfkill_ops,
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100639 (void *) HPWMI_BLUETOOTH);
Dan Carpenterdd258c02012-05-17 09:48:12 +0300640 if (!bluetooth_rfkill) {
641 err = -ENOMEM;
642 goto register_wifi_error;
643 }
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100644 rfkill_init_sw_state(bluetooth_rfkill,
645 hp_wmi_get_sw_state(HPWMI_BLUETOOTH));
646 rfkill_set_hw_state(bluetooth_rfkill,
647 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
Larry Fingerfe8e4e02009-01-09 16:40:54 -0800648 err = rfkill_register(bluetooth_rfkill);
Frans Pop6989d562009-01-29 14:25:14 -0800649 if (err)
Larry Fingerfe8e4e02009-01-09 16:40:54 -0800650 goto register_bluetooth_error;
Matthew Garrett3f6e2f12008-09-02 14:36:00 -0700651 }
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700652
Matthew Garrett3f6e2f12008-09-02 14:36:00 -0700653 if (wireless & 0x4) {
Johannes Berg19d337d2009-06-02 13:01:37 +0200654 wwan_rfkill = rfkill_alloc("hp-wwan", &device->dev,
655 RFKILL_TYPE_WWAN,
656 &hp_wmi_rfkill_ops,
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100657 (void *) HPWMI_WWAN);
Dan Carpenterdd258c02012-05-17 09:48:12 +0300658 if (!wwan_rfkill) {
659 err = -ENOMEM;
Trepák Vilmos4fca7ce2012-10-11 12:51:00 +0200660 goto register_gps_error;
Dan Carpenterdd258c02012-05-17 09:48:12 +0300661 }
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100662 rfkill_init_sw_state(wwan_rfkill,
663 hp_wmi_get_sw_state(HPWMI_WWAN));
664 rfkill_set_hw_state(wwan_rfkill,
665 hp_wmi_get_hw_state(HPWMI_WWAN));
Larry Fingerfe8e4e02009-01-09 16:40:54 -0800666 err = rfkill_register(wwan_rfkill);
667 if (err)
668 goto register_wwan_err;
Matthew Garrett3f6e2f12008-09-02 14:36:00 -0700669 }
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700670
Trepák Vilmos4fca7ce2012-10-11 12:51:00 +0200671 if (wireless & 0x8) {
672 gps_rfkill = rfkill_alloc("hp-gps", &device->dev,
673 RFKILL_TYPE_GPS,
674 &hp_wmi_rfkill_ops,
675 (void *) HPWMI_GPS);
676 if (!gps_rfkill) {
677 err = -ENOMEM;
678 goto register_bluetooth_error;
679 }
680 rfkill_init_sw_state(gps_rfkill,
681 hp_wmi_get_sw_state(HPWMI_GPS));
682 rfkill_set_hw_state(bluetooth_rfkill,
683 hp_wmi_get_hw_state(HPWMI_GPS));
684 err = rfkill_register(gps_rfkill);
685 if (err)
686 goto register_gps_error;
687 }
688
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700689 return 0;
Larry Fingerfe8e4e02009-01-09 16:40:54 -0800690register_wwan_err:
Johannes Berg19d337d2009-06-02 13:01:37 +0200691 rfkill_destroy(wwan_rfkill);
Anssi Hannula6d97db52011-02-20 20:07:24 +0200692 wwan_rfkill = NULL;
Trepák Vilmos4fca7ce2012-10-11 12:51:00 +0200693 if (gps_rfkill)
694 rfkill_unregister(gps_rfkill);
695register_gps_error:
696 rfkill_destroy(gps_rfkill);
697 gps_rfkill = NULL;
Andrew Morton44f06062009-02-04 15:12:07 -0800698 if (bluetooth_rfkill)
699 rfkill_unregister(bluetooth_rfkill);
Larry Fingerfe8e4e02009-01-09 16:40:54 -0800700register_bluetooth_error:
Johannes Berg19d337d2009-06-02 13:01:37 +0200701 rfkill_destroy(bluetooth_rfkill);
Anssi Hannula6d97db52011-02-20 20:07:24 +0200702 bluetooth_rfkill = NULL;
Andrew Morton44f06062009-02-04 15:12:07 -0800703 if (wifi_rfkill)
704 rfkill_unregister(wifi_rfkill);
Johannes Berg19d337d2009-06-02 13:01:37 +0200705register_wifi_error:
706 rfkill_destroy(wifi_rfkill);
Anssi Hannula6d97db52011-02-20 20:07:24 +0200707 wifi_rfkill = NULL;
Anssi Hannulaeceb7bd2011-02-20 20:07:23 +0200708 return err;
709}
710
Greg Kroah-Hartmanb859f152012-12-21 13:18:33 -0800711static int hp_wmi_rfkill2_setup(struct platform_device *device)
Anssi Hannulac0b9c642011-02-20 20:07:26 +0200712{
713 int err, i;
714 struct bios_rfkill2_state state;
715 err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state,
716 0, sizeof(state));
717 if (err)
718 return err;
719
720 if (state.count > HPWMI_MAX_RFKILL2_DEVICES) {
Joe Perchesb5a42232011-03-29 15:21:41 -0700721 pr_warn("unable to parse 0x1b query output\n");
Anssi Hannulac0b9c642011-02-20 20:07:26 +0200722 return -EINVAL;
723 }
724
725 for (i = 0; i < state.count; i++) {
726 struct rfkill *rfkill;
727 enum rfkill_type type;
728 char *name;
729 switch (state.device[i].radio_type) {
730 case HPWMI_WIFI:
731 type = RFKILL_TYPE_WLAN;
732 name = "hp-wifi";
733 break;
734 case HPWMI_BLUETOOTH:
735 type = RFKILL_TYPE_BLUETOOTH;
736 name = "hp-bluetooth";
737 break;
738 case HPWMI_WWAN:
739 type = RFKILL_TYPE_WWAN;
740 name = "hp-wwan";
741 break;
Trepák Vilmos4fca7ce2012-10-11 12:51:00 +0200742 case HPWMI_GPS:
743 type = RFKILL_TYPE_GPS;
744 name = "hp-gps";
745 break;
Anssi Hannulac0b9c642011-02-20 20:07:26 +0200746 default:
Joe Perchesb5a42232011-03-29 15:21:41 -0700747 pr_warn("unknown device type 0x%x\n",
748 state.device[i].radio_type);
Anssi Hannulac0b9c642011-02-20 20:07:26 +0200749 continue;
750 }
751
752 if (!state.device[i].vendor_id) {
Joe Perchesb5a42232011-03-29 15:21:41 -0700753 pr_warn("zero device %d while %d reported\n",
754 i, state.count);
Anssi Hannulac0b9c642011-02-20 20:07:26 +0200755 continue;
756 }
757
758 rfkill = rfkill_alloc(name, &device->dev, type,
759 &hp_wmi_rfkill2_ops, (void *)(long)i);
760 if (!rfkill) {
761 err = -ENOMEM;
762 goto fail;
763 }
764
765 rfkill2[rfkill2_count].id = state.device[i].rfkill_id;
766 rfkill2[rfkill2_count].num = i;
767 rfkill2[rfkill2_count].rfkill = rfkill;
768
769 rfkill_init_sw_state(rfkill,
770 IS_SWBLOCKED(state.device[i].power));
771 rfkill_set_hw_state(rfkill,
772 IS_HWBLOCKED(state.device[i].power));
773
774 if (!(state.device[i].power & HPWMI_POWER_BIOS))
Joe Perchesb5a42232011-03-29 15:21:41 -0700775 pr_info("device %s blocked by BIOS\n", name);
Anssi Hannulac0b9c642011-02-20 20:07:26 +0200776
777 err = rfkill_register(rfkill);
778 if (err) {
779 rfkill_destroy(rfkill);
780 goto fail;
781 }
782
783 rfkill2_count++;
784 }
785
786 return 0;
787fail:
788 for (; rfkill2_count > 0; rfkill2_count--) {
789 rfkill_unregister(rfkill2[rfkill2_count - 1].rfkill);
790 rfkill_destroy(rfkill2[rfkill2_count - 1].rfkill);
791 }
792 return err;
793}
794
Dmitry Torokhovc165b802013-02-20 00:44:34 -0800795static int __init hp_wmi_bios_setup(struct platform_device *device)
Anssi Hannulaeceb7bd2011-02-20 20:07:23 +0200796{
797 int err;
798
Anssi Hannula6d97db52011-02-20 20:07:24 +0200799 /* clear detected rfkill devices */
800 wifi_rfkill = NULL;
801 bluetooth_rfkill = NULL;
802 wwan_rfkill = NULL;
Trepák Vilmos4fca7ce2012-10-11 12:51:00 +0200803 gps_rfkill = NULL;
Anssi Hannulac0b9c642011-02-20 20:07:26 +0200804 rfkill2_count = 0;
Anssi Hannula6d97db52011-02-20 20:07:24 +0200805
Anssi Hannulac0b9c642011-02-20 20:07:26 +0200806 if (hp_wmi_rfkill_setup(device))
807 hp_wmi_rfkill2_setup(device);
Anssi Hannulaeceb7bd2011-02-20 20:07:23 +0200808
809 err = device_create_file(&device->dev, &dev_attr_display);
810 if (err)
811 goto add_sysfs_error;
812 err = device_create_file(&device->dev, &dev_attr_hddtemp);
813 if (err)
814 goto add_sysfs_error;
815 err = device_create_file(&device->dev, &dev_attr_als);
816 if (err)
817 goto add_sysfs_error;
818 err = device_create_file(&device->dev, &dev_attr_dock);
819 if (err)
820 goto add_sysfs_error;
821 err = device_create_file(&device->dev, &dev_attr_tablet);
822 if (err)
823 goto add_sysfs_error;
824 return 0;
825
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700826add_sysfs_error:
827 cleanup_sysfs(device);
828 return err;
829}
830
831static int __exit hp_wmi_bios_remove(struct platform_device *device)
832{
Anssi Hannulac0b9c642011-02-20 20:07:26 +0200833 int i;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700834 cleanup_sysfs(device);
835
Anssi Hannulac0b9c642011-02-20 20:07:26 +0200836 for (i = 0; i < rfkill2_count; i++) {
837 rfkill_unregister(rfkill2[i].rfkill);
838 rfkill_destroy(rfkill2[i].rfkill);
839 }
840
Johannes Berg19d337d2009-06-02 13:01:37 +0200841 if (wifi_rfkill) {
Matthew Garrett3f6e2f12008-09-02 14:36:00 -0700842 rfkill_unregister(wifi_rfkill);
Johannes Berg19d337d2009-06-02 13:01:37 +0200843 rfkill_destroy(wifi_rfkill);
844 }
845 if (bluetooth_rfkill) {
Matthew Garrett3f6e2f12008-09-02 14:36:00 -0700846 rfkill_unregister(bluetooth_rfkill);
Corentin Chary09729f02009-09-14 12:43:51 +0200847 rfkill_destroy(bluetooth_rfkill);
Johannes Berg19d337d2009-06-02 13:01:37 +0200848 }
849 if (wwan_rfkill) {
Matthew Garrett3f6e2f12008-09-02 14:36:00 -0700850 rfkill_unregister(wwan_rfkill);
Johannes Berg19d337d2009-06-02 13:01:37 +0200851 rfkill_destroy(wwan_rfkill);
852 }
Trepák Vilmos4fca7ce2012-10-11 12:51:00 +0200853 if (gps_rfkill) {
854 rfkill_unregister(gps_rfkill);
855 rfkill_destroy(gps_rfkill);
856 }
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700857
858 return 0;
859}
860
Frans Pop8dd2b422009-08-20 20:38:13 +0200861static int hp_wmi_resume_handler(struct device *device)
Frans Pop4c395bd2009-03-04 11:55:28 -0800862{
Frans Pop4c395bd2009-03-04 11:55:28 -0800863 /*
Matthew Garrett871043b2009-06-01 15:25:45 +0100864 * Hardware state may have changed while suspended, so trigger
865 * input events for the current state. As this is a switch,
Frans Pop4c395bd2009-03-04 11:55:28 -0800866 * the input layer will only actually pass it on if the state
867 * changed.
868 */
Frans Popdaed9532009-07-30 17:16:05 -0400869 if (hp_wmi_input_dev) {
870 input_report_switch(hp_wmi_input_dev, SW_DOCK,
871 hp_wmi_dock_state());
872 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
873 hp_wmi_tablet_state());
874 input_sync(hp_wmi_input_dev);
875 }
Frans Pop4c395bd2009-03-04 11:55:28 -0800876
Anssi Hannulac0b9c642011-02-20 20:07:26 +0200877 if (rfkill2_count)
878 hp_wmi_rfkill2_refresh();
879
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100880 if (wifi_rfkill)
881 rfkill_set_states(wifi_rfkill,
882 hp_wmi_get_sw_state(HPWMI_WIFI),
883 hp_wmi_get_hw_state(HPWMI_WIFI));
884 if (bluetooth_rfkill)
885 rfkill_set_states(bluetooth_rfkill,
886 hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
887 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
888 if (wwan_rfkill)
889 rfkill_set_states(wwan_rfkill,
890 hp_wmi_get_sw_state(HPWMI_WWAN),
891 hp_wmi_get_hw_state(HPWMI_WWAN));
Trepák Vilmos4fca7ce2012-10-11 12:51:00 +0200892 if (gps_rfkill)
893 rfkill_set_states(gps_rfkill,
894 hp_wmi_get_sw_state(HPWMI_GPS),
895 hp_wmi_get_hw_state(HPWMI_GPS));
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100896
Frans Pop4c395bd2009-03-04 11:55:28 -0800897 return 0;
898}
899
Dmitry Torokhovc165b802013-02-20 00:44:34 -0800900static const struct dev_pm_ops hp_wmi_pm_ops = {
901 .resume = hp_wmi_resume_handler,
902 .restore = hp_wmi_resume_handler,
903};
904
905static struct platform_driver hp_wmi_driver = {
906 .driver = {
907 .name = "hp-wmi",
908 .owner = THIS_MODULE,
909 .pm = &hp_wmi_pm_ops,
910 },
911 .remove = __exit_p(hp_wmi_bios_remove),
912};
913
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700914static int __init hp_wmi_init(void)
915{
916 int err;
Thomas Renningerb0966672010-07-20 15:19:29 -0700917 int event_capable = wmi_has_guid(HPWMI_EVENT_GUID);
918 int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID);
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700919
Dmitry Torokhovc165b802013-02-20 00:44:34 -0800920 if (!bios_capable && !event_capable)
921 return -ENODEV;
922
Thomas Renningerb0966672010-07-20 15:19:29 -0700923 if (event_capable) {
Axel Lindfec5c42010-06-10 16:06:40 +0800924 err = hp_wmi_input_setup();
Dmitry Torokhov4d291ed2010-08-04 22:30:13 -0700925 if (err)
Axel Lindfec5c42010-06-10 16:06:40 +0800926 return err;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700927 }
928
Thomas Renningerb0966672010-07-20 15:19:29 -0700929 if (bios_capable) {
Dmitry Torokhovc165b802013-02-20 00:44:34 -0800930 hp_wmi_platform_dev =
931 platform_device_register_simple("hp-wmi", -1, NULL, 0);
932 if (IS_ERR(hp_wmi_platform_dev)) {
933 err = PTR_ERR(hp_wmi_platform_dev);
934 goto err_destroy_input;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700935 }
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700936
Dmitry Torokhovc165b802013-02-20 00:44:34 -0800937 err = platform_driver_probe(&hp_wmi_driver, hp_wmi_bios_setup);
938 if (err)
939 goto err_unregister_device;
940 }
Thomas Renningerb0966672010-07-20 15:19:29 -0700941
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700942 return 0;
Axel Lindfec5c42010-06-10 16:06:40 +0800943
Dmitry Torokhovc165b802013-02-20 00:44:34 -0800944err_unregister_device:
945 platform_device_unregister(hp_wmi_platform_dev);
946err_destroy_input:
Dmitry Torokhov4d291ed2010-08-04 22:30:13 -0700947 if (event_capable)
948 hp_wmi_input_destroy();
Axel Lindfec5c42010-06-10 16:06:40 +0800949
950 return err;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700951}
Dmitry Torokhovc165b802013-02-20 00:44:34 -0800952module_init(hp_wmi_init);
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700953
954static void __exit hp_wmi_exit(void)
955{
Dmitry Torokhov4d291ed2010-08-04 22:30:13 -0700956 if (wmi_has_guid(HPWMI_EVENT_GUID))
957 hp_wmi_input_destroy();
958
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700959 if (hp_wmi_platform_dev) {
Axel Lin97ba0af2010-06-03 15:18:03 +0800960 platform_device_unregister(hp_wmi_platform_dev);
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700961 platform_driver_unregister(&hp_wmi_driver);
962 }
963}
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700964module_exit(hp_wmi_exit);