blob: 34b417848e29546d7e309a5a51771361bf379e9a [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>
5 *
6 * Portions based on wistron_btns.c:
7 * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
8 * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
9 * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 */
25
26#include <linux/kernel.h>
27#include <linux/module.h>
28#include <linux/init.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090029#include <linux/slab.h>
Matthew Garrett62ec30d2008-07-25 01:45:39 -070030#include <linux/types.h>
31#include <linux/input.h>
32#include <acpi/acpi_drivers.h>
33#include <linux/platform_device.h>
34#include <linux/acpi.h>
35#include <linux/rfkill.h>
36#include <linux/string.h>
37
38MODULE_AUTHOR("Matthew Garrett <mjg59@srcf.ucam.org>");
39MODULE_DESCRIPTION("HP laptop WMI hotkeys driver");
40MODULE_LICENSE("GPL");
41
42MODULE_ALIAS("wmi:95F24279-4D7B-4334-9387-ACCDC67EF61C");
43MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4");
44
45#define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C"
46#define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4"
47
48#define HPWMI_DISPLAY_QUERY 0x1
49#define HPWMI_HDDTEMP_QUERY 0x2
50#define HPWMI_ALS_QUERY 0x3
Matthew Garrett871043b2009-06-01 15:25:45 +010051#define HPWMI_HARDWARE_QUERY 0x4
Matthew Garrett62ec30d2008-07-25 01:45:39 -070052#define HPWMI_WIRELESS_QUERY 0x5
Matthew Garretta8823ae2008-09-02 14:36:03 -070053#define HPWMI_HOTKEY_QUERY 0xc
Matthew Garrett62ec30d2008-07-25 01:45:39 -070054
Thomas Renningera2806c62010-05-21 16:18:11 +020055#define PREFIX "HP WMI: "
Thomas Renninger1bbdfd52010-05-21 16:18:13 +020056#define UNIMP "Unimplemented "
Thomas Renningera2806c62010-05-21 16:18:11 +020057
Alan Jenkinse5fbba82009-07-21 12:14:01 +010058enum hp_wmi_radio {
59 HPWMI_WIFI = 0,
60 HPWMI_BLUETOOTH = 1,
61 HPWMI_WWAN = 2,
62};
63
Thomas Renninger751ae802010-05-21 16:18:09 +020064enum hp_wmi_event_ids {
65 HPWMI_DOCK_EVENT = 1,
Thomas Renninger1bbdfd52010-05-21 16:18:13 +020066 HPWMI_PARK_HDD = 2,
67 HPWMI_SMART_ADAPTER = 3,
Thomas Renninger751ae802010-05-21 16:18:09 +020068 HPWMI_BEZEL_BUTTON = 4,
69 HPWMI_WIRELESS = 5,
Thomas Renninger1bbdfd52010-05-21 16:18:13 +020070 HPWMI_CPU_BATTERY_THROTTLE = 6,
71 HPWMI_LOCK_SWITCH = 7,
Thomas Renninger751ae802010-05-21 16:18:09 +020072};
73
Uwe Kleine-Königea796322010-02-04 20:56:52 +010074static int __devinit hp_wmi_bios_setup(struct platform_device *device);
Matthew Garrett62ec30d2008-07-25 01:45:39 -070075static int __exit hp_wmi_bios_remove(struct platform_device *device);
Frans Pop8dd2b422009-08-20 20:38:13 +020076static int hp_wmi_resume_handler(struct device *device);
Matthew Garrett62ec30d2008-07-25 01:45:39 -070077
78struct bios_args {
79 u32 signature;
80 u32 command;
81 u32 commandtype;
82 u32 datasize;
Thomas Renninger6d96e002010-05-21 16:42:40 +020083 char *data;
Matthew Garrett62ec30d2008-07-25 01:45:39 -070084};
85
86struct bios_return {
87 u32 sigpass;
88 u32 return_code;
Matthew Garrett62ec30d2008-07-25 01:45:39 -070089};
90
91struct key_entry {
92 char type; /* See KE_* below */
Matthew Garretta8823ae2008-09-02 14:36:03 -070093 u16 code;
Matthew Garrett62ec30d2008-07-25 01:45:39 -070094 u16 keycode;
95};
96
Matthew Garrett871043b2009-06-01 15:25:45 +010097enum { KE_KEY, KE_END };
Matthew Garrett62ec30d2008-07-25 01:45:39 -070098
99static struct key_entry hp_wmi_keymap[] = {
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700100 {KE_KEY, 0x02, KEY_BRIGHTNESSUP},
101 {KE_KEY, 0x03, KEY_BRIGHTNESSDOWN},
Matthew Garretta8823ae2008-09-02 14:36:03 -0700102 {KE_KEY, 0x20e6, KEY_PROG1},
Thomas Renningerf6b2ff02010-05-21 16:18:12 +0200103 {KE_KEY, 0x20e8, KEY_MEDIA},
Matthew Garretta8823ae2008-09-02 14:36:03 -0700104 {KE_KEY, 0x2142, KEY_MEDIA},
Eric Piel5c624842008-10-18 20:27:28 -0700105 {KE_KEY, 0x213b, KEY_INFO},
Matthew Garrettcaeacf52010-02-17 10:29:39 -0500106 {KE_KEY, 0x2169, KEY_DIRECTION},
Matthew Garretta8823ae2008-09-02 14:36:03 -0700107 {KE_KEY, 0x231b, KEY_HELP},
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700108 {KE_END, 0}
109};
110
111static struct input_dev *hp_wmi_input_dev;
112static struct platform_device *hp_wmi_platform_dev;
113
114static struct rfkill *wifi_rfkill;
115static struct rfkill *bluetooth_rfkill;
116static struct rfkill *wwan_rfkill;
117
Alexey Dobriyan47145212009-12-14 18:00:08 -0800118static const struct dev_pm_ops hp_wmi_pm_ops = {
Frans Pop8dd2b422009-08-20 20:38:13 +0200119 .resume = hp_wmi_resume_handler,
120 .restore = hp_wmi_resume_handler,
121};
122
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700123static struct platform_driver hp_wmi_driver = {
124 .driver = {
Frans Pop8dd2b422009-08-20 20:38:13 +0200125 .name = "hp-wmi",
126 .owner = THIS_MODULE,
127 .pm = &hp_wmi_pm_ops,
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700128 },
129 .probe = hp_wmi_bios_setup,
130 .remove = hp_wmi_bios_remove,
131};
132
Thomas Renninger6d96e002010-05-21 16:42:40 +0200133/*
134 * hp_wmi_perform_query
135 *
136 * query: The commandtype -> What should be queried
137 * write: The command -> 0 read, 1 write, 3 ODM specific
138 * buffer: Buffer used as input and/or output
139 * buffersize: Size of buffer
140 *
141 * returns zero on success
142 * an HP WMI query specific error code (which is positive)
143 * -EINVAL if the query was not successful at all
144 * -EINVAL if the output buffer size exceeds buffersize
145 *
146 * Note: The buffersize must at least be the maximum of the input and output
147 * size. E.g. Battery info query (0x7) is defined to have 1 byte input
148 * and 128 byte output. The caller would do:
149 * buffer = kzalloc(128, GFP_KERNEL);
150 * ret = hp_wmi_perform_query(0x7, 0, buffer, 128)
151 */
152static int hp_wmi_perform_query(int query, int write, char *buffer,
153 int buffersize)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700154{
155 struct bios_return bios_return;
156 acpi_status status;
157 union acpi_object *obj;
158 struct bios_args args = {
159 .signature = 0x55434553,
160 .command = write ? 0x2 : 0x1,
161 .commandtype = query,
Thomas Renninger6d96e002010-05-21 16:42:40 +0200162 .datasize = buffersize,
163 .data = buffer,
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700164 };
165 struct acpi_buffer input = { sizeof(struct bios_args), &args };
166 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
167
168 status = wmi_evaluate_method(HPWMI_BIOS_GUID, 0, 0x3, &input, &output);
169
170 obj = output.pointer;
171
Thomas Renninger44ef00e2009-12-18 15:29:23 +0100172 if (!obj)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700173 return -EINVAL;
Thomas Renninger44ef00e2009-12-18 15:29:23 +0100174 else if (obj->type != ACPI_TYPE_BUFFER) {
175 kfree(obj);
176 return -EINVAL;
177 }
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700178
179 bios_return = *((struct bios_return *)obj->buffer.pointer);
Thomas Renninger6d96e002010-05-21 16:42:40 +0200180
181 if (bios_return.return_code) {
182 printk(KERN_WARNING PREFIX "Query %d returned %d\n", query,
183 bios_return.return_code);
184 kfree(obj);
185 return bios_return.return_code;
186 }
187 if (obj->buffer.length - sizeof(bios_return) > buffersize) {
188 kfree(obj);
189 return -EINVAL;
190 }
191
192 memset(buffer, 0, buffersize);
193 memcpy(buffer,
194 ((char *)obj->buffer.pointer) + sizeof(struct bios_return),
195 obj->buffer.length - sizeof(bios_return));
Thomas Renninger44ef00e2009-12-18 15:29:23 +0100196 kfree(obj);
Thomas Renninger6d96e002010-05-21 16:42:40 +0200197 return 0;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700198}
199
200static int hp_wmi_display_state(void)
201{
Thomas Renninger6d96e002010-05-21 16:42:40 +0200202 int state;
203 int ret = hp_wmi_perform_query(HPWMI_DISPLAY_QUERY, 0, (char *)&state,
204 sizeof(state));
205 if (ret)
206 return -EINVAL;
207 return state;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700208}
209
210static int hp_wmi_hddtemp_state(void)
211{
Thomas Renninger6d96e002010-05-21 16:42:40 +0200212 int state;
213 int ret = hp_wmi_perform_query(HPWMI_HDDTEMP_QUERY, 0, (char *)&state,
214 sizeof(state));
215 if (ret)
216 return -EINVAL;
217 return state;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700218}
219
220static int hp_wmi_als_state(void)
221{
Thomas Renninger6d96e002010-05-21 16:42:40 +0200222 int state;
223 int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 0, (char *)&state,
224 sizeof(state));
225 if (ret)
226 return -EINVAL;
227 return state;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700228}
229
230static int hp_wmi_dock_state(void)
231{
Thomas Renninger6d96e002010-05-21 16:42:40 +0200232 int state;
233 int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, (char *)&state,
234 sizeof(state));
Matthew Garrett871043b2009-06-01 15:25:45 +0100235
Thomas Renninger6d96e002010-05-21 16:42:40 +0200236 if (ret)
237 return -EINVAL;
Matthew Garrett871043b2009-06-01 15:25:45 +0100238
Thomas Renninger6d96e002010-05-21 16:42:40 +0200239 return state & 0x1;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700240}
241
Matthew Garrett871043b2009-06-01 15:25:45 +0100242static int hp_wmi_tablet_state(void)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700243{
Thomas Renninger6d96e002010-05-21 16:42:40 +0200244 int state;
245 int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, (char *)&state,
246 sizeof(state));
247 if (ret)
Matthew Garrett871043b2009-06-01 15:25:45 +0100248 return ret;
249
Thomas Renninger6d96e002010-05-21 16:42:40 +0200250 return (state & 0x4) ? 1 : 0;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700251}
252
Johannes Berg19d337d2009-06-02 13:01:37 +0200253static int hp_wmi_set_block(void *data, bool blocked)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700254{
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100255 enum hp_wmi_radio r = (enum hp_wmi_radio) data;
256 int query = BIT(r + 8) | ((!blocked) << r);
Thomas Renninger6d96e002010-05-21 16:42:40 +0200257 int ret;
Johannes Berg19d337d2009-06-02 13:01:37 +0200258
Thomas Renninger6d96e002010-05-21 16:42:40 +0200259 ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1,
260 (char *)&query, sizeof(query));
261 if (ret)
262 return -EINVAL;
263 return 0;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700264}
265
Johannes Berg19d337d2009-06-02 13:01:37 +0200266static const struct rfkill_ops hp_wmi_rfkill_ops = {
267 .set_block = hp_wmi_set_block,
268};
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700269
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100270static bool hp_wmi_get_sw_state(enum hp_wmi_radio r)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700271{
Thomas Renninger6d96e002010-05-21 16:42:40 +0200272 int wireless;
273 int mask;
274 hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0,
275 (char *)&wireless, sizeof(wireless));
276 /* TBD: Pass error */
277
278 mask = 0x200 << (r * 8);
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700279
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100280 if (wireless & mask)
Johannes Berg19d337d2009-06-02 13:01:37 +0200281 return false;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700282 else
Johannes Berg19d337d2009-06-02 13:01:37 +0200283 return true;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700284}
285
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100286static bool hp_wmi_get_hw_state(enum hp_wmi_radio r)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700287{
Thomas Renninger6d96e002010-05-21 16:42:40 +0200288 int wireless;
289 int mask;
290 hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0,
291 (char *)&wireless, sizeof(wireless));
292 /* TBD: Pass error */
293
294 mask = 0x800 << (r * 8);
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700295
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100296 if (wireless & mask)
Johannes Berg19d337d2009-06-02 13:01:37 +0200297 return false;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700298 else
Johannes Berg19d337d2009-06-02 13:01:37 +0200299 return true;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700300}
301
302static ssize_t show_display(struct device *dev, struct device_attribute *attr,
303 char *buf)
304{
305 int value = hp_wmi_display_state();
306 if (value < 0)
307 return -EINVAL;
308 return sprintf(buf, "%d\n", value);
309}
310
311static ssize_t show_hddtemp(struct device *dev, struct device_attribute *attr,
312 char *buf)
313{
314 int value = hp_wmi_hddtemp_state();
315 if (value < 0)
316 return -EINVAL;
317 return sprintf(buf, "%d\n", value);
318}
319
320static ssize_t show_als(struct device *dev, struct device_attribute *attr,
321 char *buf)
322{
323 int value = hp_wmi_als_state();
324 if (value < 0)
325 return -EINVAL;
326 return sprintf(buf, "%d\n", value);
327}
328
329static ssize_t show_dock(struct device *dev, struct device_attribute *attr,
330 char *buf)
331{
332 int value = hp_wmi_dock_state();
333 if (value < 0)
334 return -EINVAL;
335 return sprintf(buf, "%d\n", value);
336}
337
Matthew Garrett871043b2009-06-01 15:25:45 +0100338static ssize_t show_tablet(struct device *dev, struct device_attribute *attr,
339 char *buf)
340{
341 int value = hp_wmi_tablet_state();
342 if (value < 0)
343 return -EINVAL;
344 return sprintf(buf, "%d\n", value);
345}
346
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700347static ssize_t set_als(struct device *dev, struct device_attribute *attr,
348 const char *buf, size_t count)
349{
350 u32 tmp = simple_strtoul(buf, NULL, 10);
Thomas Renninger6d96e002010-05-21 16:42:40 +0200351 int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 1, (char *)&tmp,
352 sizeof(tmp));
353 if (ret)
354 return -EINVAL;
355
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700356 return count;
357}
358
359static DEVICE_ATTR(display, S_IRUGO, show_display, NULL);
360static DEVICE_ATTR(hddtemp, S_IRUGO, show_hddtemp, NULL);
361static DEVICE_ATTR(als, S_IRUGO | S_IWUSR, show_als, set_als);
362static DEVICE_ATTR(dock, S_IRUGO, show_dock, NULL);
Matthew Garrett871043b2009-06-01 15:25:45 +0100363static DEVICE_ATTR(tablet, S_IRUGO, show_tablet, NULL);
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700364
Dmitry Torokhov58b93992010-03-08 22:37:10 -0800365static struct key_entry *hp_wmi_get_entry_by_scancode(unsigned int code)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700366{
367 struct key_entry *key;
368
369 for (key = hp_wmi_keymap; key->type != KE_END; key++)
370 if (code == key->code)
371 return key;
372
373 return NULL;
374}
375
Dmitry Torokhov58b93992010-03-08 22:37:10 -0800376static struct key_entry *hp_wmi_get_entry_by_keycode(unsigned int keycode)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700377{
378 struct key_entry *key;
379
380 for (key = hp_wmi_keymap; key->type != KE_END; key++)
381 if (key->type == KE_KEY && keycode == key->keycode)
382 return key;
383
384 return NULL;
385}
386
Dmitry Torokhov58b93992010-03-08 22:37:10 -0800387static int hp_wmi_getkeycode(struct input_dev *dev,
388 unsigned int scancode, unsigned int *keycode)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700389{
390 struct key_entry *key = hp_wmi_get_entry_by_scancode(scancode);
391
392 if (key && key->type == KE_KEY) {
393 *keycode = key->keycode;
394 return 0;
395 }
396
397 return -EINVAL;
398}
399
Dmitry Torokhov58b93992010-03-08 22:37:10 -0800400static int hp_wmi_setkeycode(struct input_dev *dev,
401 unsigned int scancode, unsigned int keycode)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700402{
403 struct key_entry *key;
Dmitry Torokhov58b93992010-03-08 22:37:10 -0800404 unsigned int old_keycode;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700405
406 key = hp_wmi_get_entry_by_scancode(scancode);
407 if (key && key->type == KE_KEY) {
408 old_keycode = key->keycode;
409 key->keycode = keycode;
410 set_bit(keycode, dev->keybit);
411 if (!hp_wmi_get_entry_by_keycode(old_keycode))
412 clear_bit(old_keycode, dev->keybit);
413 return 0;
414 }
415
416 return -EINVAL;
417}
418
Adrian Bunk88429a12008-10-15 22:05:17 -0700419static void hp_wmi_notify(u32 value, void *context)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700420{
421 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
422 static struct key_entry *key;
423 union acpi_object *obj;
Thomas Renninger8dda6b02010-05-21 16:41:43 +0200424 u32 event_id, event_data;
Thomas Renninger6d96e002010-05-21 16:42:40 +0200425 int key_code, ret;
Thomas Renninger8dda6b02010-05-21 16:41:43 +0200426 u32 *location;
Len Brownfda11e62009-12-26 23:02:24 -0500427 acpi_status status;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700428
Len Brownfda11e62009-12-26 23:02:24 -0500429 status = wmi_get_event_data(value, &response);
430 if (status != AE_OK) {
Thomas Renningera2806c62010-05-21 16:18:11 +0200431 printk(KERN_INFO PREFIX "bad event status 0x%x\n", status);
Len Brownfda11e62009-12-26 23:02:24 -0500432 return;
433 }
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700434
435 obj = (union acpi_object *)response.pointer;
436
Thomas Renninger8dda6b02010-05-21 16:41:43 +0200437 if (obj || obj->type != ACPI_TYPE_BUFFER) {
438 printk(KERN_INFO "hp-wmi: Unknown response received %d\n",
439 obj->type);
Thomas Renninger44ef00e2009-12-18 15:29:23 +0100440 kfree(obj);
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100441 return;
442 }
443
Thomas Renninger8dda6b02010-05-21 16:41:43 +0200444 /*
445 * Depending on ACPI version the concatenation of id and event data
446 * inside _WED function will result in a 8 or 16 byte buffer.
447 */
448 location = (u32 *)obj->buffer.pointer;
449 if (obj->buffer.length == 8) {
450 event_id = *location;
451 event_data = *(location + 1);
452 } else if (obj->buffer.length == 16) {
453 event_id = *location;
454 event_data = *(location + 2);
455 } else {
456 printk(KERN_INFO "hp-wmi: Unknown buffer length %d\n",
457 obj->buffer.length);
458 kfree(obj);
459 return;
460 }
Thomas Renninger44ef00e2009-12-18 15:29:23 +0100461 kfree(obj);
Thomas Renninger8dda6b02010-05-21 16:41:43 +0200462
463 switch (event_id) {
Thomas Renninger751ae802010-05-21 16:18:09 +0200464 case HPWMI_DOCK_EVENT:
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100465 input_report_switch(hp_wmi_input_dev, SW_DOCK,
466 hp_wmi_dock_state());
467 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
468 hp_wmi_tablet_state());
469 input_sync(hp_wmi_input_dev);
Thomas Renninger751ae802010-05-21 16:18:09 +0200470 break;
Thomas Renninger1bbdfd52010-05-21 16:18:13 +0200471 case HPWMI_PARK_HDD:
472 break;
473 case HPWMI_SMART_ADAPTER:
474 break;
Thomas Renninger751ae802010-05-21 16:18:09 +0200475 case HPWMI_BEZEL_BUTTON:
Thomas Renninger6d96e002010-05-21 16:42:40 +0200476 ret = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0,
477 (char *)&key_code,
478 sizeof(key_code));
479 if (ret)
480 break;
Thomas Renninger751ae802010-05-21 16:18:09 +0200481 key = hp_wmi_get_entry_by_scancode(key_code);
482 if (key) {
483 switch (key->type) {
484 case KE_KEY:
485 input_report_key(hp_wmi_input_dev,
486 key->keycode, 1);
487 input_sync(hp_wmi_input_dev);
488 input_report_key(hp_wmi_input_dev,
489 key->keycode, 0);
490 input_sync(hp_wmi_input_dev);
491 break;
492 }
Thomas Renningerda9a79b2010-05-21 16:18:10 +0200493 } else
Thomas Renningera2806c62010-05-21 16:18:11 +0200494 printk(KERN_INFO PREFIX "Unknown key code - 0x%x\n",
Thomas Renningerda9a79b2010-05-21 16:18:10 +0200495 key_code);
Thomas Renninger751ae802010-05-21 16:18:09 +0200496 break;
497 case HPWMI_WIRELESS:
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100498 if (wifi_rfkill)
499 rfkill_set_states(wifi_rfkill,
500 hp_wmi_get_sw_state(HPWMI_WIFI),
501 hp_wmi_get_hw_state(HPWMI_WIFI));
502 if (bluetooth_rfkill)
503 rfkill_set_states(bluetooth_rfkill,
504 hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
505 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
506 if (wwan_rfkill)
507 rfkill_set_states(wwan_rfkill,
508 hp_wmi_get_sw_state(HPWMI_WWAN),
509 hp_wmi_get_hw_state(HPWMI_WWAN));
Thomas Renninger751ae802010-05-21 16:18:09 +0200510 break;
Thomas Renninger1bbdfd52010-05-21 16:18:13 +0200511 case HPWMI_CPU_BATTERY_THROTTLE:
512 printk(KERN_INFO PREFIX UNIMP "CPU throttle because of 3 Cell"
513 " battery event detected\n");
514 break;
515 case HPWMI_LOCK_SWITCH:
516 break;
Thomas Renninger751ae802010-05-21 16:18:09 +0200517 default:
Thomas Renninger8dda6b02010-05-21 16:41:43 +0200518 printk(KERN_INFO PREFIX "Unknown event_id - %d - 0x%x\n",
519 event_id, event_data);
Thomas Renninger751ae802010-05-21 16:18:09 +0200520 break;
521 }
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700522}
523
524static int __init hp_wmi_input_setup(void)
525{
526 struct key_entry *key;
527 int err;
528
529 hp_wmi_input_dev = input_allocate_device();
530
531 hp_wmi_input_dev->name = "HP WMI hotkeys";
532 hp_wmi_input_dev->phys = "wmi/input0";
533 hp_wmi_input_dev->id.bustype = BUS_HOST;
534 hp_wmi_input_dev->getkeycode = hp_wmi_getkeycode;
535 hp_wmi_input_dev->setkeycode = hp_wmi_setkeycode;
536
537 for (key = hp_wmi_keymap; key->type != KE_END; key++) {
538 switch (key->type) {
539 case KE_KEY:
540 set_bit(EV_KEY, hp_wmi_input_dev->evbit);
541 set_bit(key->keycode, hp_wmi_input_dev->keybit);
542 break;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700543 }
544 }
545
Matthew Garrett871043b2009-06-01 15:25:45 +0100546 set_bit(EV_SW, hp_wmi_input_dev->evbit);
547 set_bit(SW_DOCK, hp_wmi_input_dev->swbit);
548 set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit);
549
550 /* Set initial hardware state */
551 input_report_switch(hp_wmi_input_dev, SW_DOCK, hp_wmi_dock_state());
552 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
553 hp_wmi_tablet_state());
554 input_sync(hp_wmi_input_dev);
555
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700556 err = input_register_device(hp_wmi_input_dev);
557
558 if (err) {
559 input_free_device(hp_wmi_input_dev);
560 return err;
561 }
562
563 return 0;
564}
565
566static void cleanup_sysfs(struct platform_device *device)
567{
568 device_remove_file(&device->dev, &dev_attr_display);
569 device_remove_file(&device->dev, &dev_attr_hddtemp);
570 device_remove_file(&device->dev, &dev_attr_als);
571 device_remove_file(&device->dev, &dev_attr_dock);
Matthew Garrett871043b2009-06-01 15:25:45 +0100572 device_remove_file(&device->dev, &dev_attr_tablet);
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700573}
574
Uwe Kleine-Königea796322010-02-04 20:56:52 +0100575static int __devinit hp_wmi_bios_setup(struct platform_device *device)
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700576{
577 int err;
Thomas Renninger6d96e002010-05-21 16:42:40 +0200578 int wireless;
579
580 err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, (char *)&wireless,
581 sizeof(wireless));
582 if (err)
583 return err;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700584
585 err = device_create_file(&device->dev, &dev_attr_display);
586 if (err)
587 goto add_sysfs_error;
588 err = device_create_file(&device->dev, &dev_attr_hddtemp);
589 if (err)
590 goto add_sysfs_error;
591 err = device_create_file(&device->dev, &dev_attr_als);
592 if (err)
593 goto add_sysfs_error;
594 err = device_create_file(&device->dev, &dev_attr_dock);
595 if (err)
596 goto add_sysfs_error;
Matthew Garrett871043b2009-06-01 15:25:45 +0100597 err = device_create_file(&device->dev, &dev_attr_tablet);
598 if (err)
599 goto add_sysfs_error;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700600
Matthew Garrett3f6e2f12008-09-02 14:36:00 -0700601 if (wireless & 0x1) {
Johannes Berg19d337d2009-06-02 13:01:37 +0200602 wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev,
603 RFKILL_TYPE_WLAN,
604 &hp_wmi_rfkill_ops,
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100605 (void *) HPWMI_WIFI);
606 rfkill_init_sw_state(wifi_rfkill,
607 hp_wmi_get_sw_state(HPWMI_WIFI));
608 rfkill_set_hw_state(wifi_rfkill,
609 hp_wmi_get_hw_state(HPWMI_WIFI));
Larry Fingerfe8e4e02009-01-09 16:40:54 -0800610 err = rfkill_register(wifi_rfkill);
611 if (err)
Johannes Berg19d337d2009-06-02 13:01:37 +0200612 goto register_wifi_error;
Matthew Garrett3f6e2f12008-09-02 14:36:00 -0700613 }
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700614
Matthew Garrett3f6e2f12008-09-02 14:36:00 -0700615 if (wireless & 0x2) {
Johannes Berg19d337d2009-06-02 13:01:37 +0200616 bluetooth_rfkill = rfkill_alloc("hp-bluetooth", &device->dev,
617 RFKILL_TYPE_BLUETOOTH,
618 &hp_wmi_rfkill_ops,
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100619 (void *) HPWMI_BLUETOOTH);
620 rfkill_init_sw_state(bluetooth_rfkill,
621 hp_wmi_get_sw_state(HPWMI_BLUETOOTH));
622 rfkill_set_hw_state(bluetooth_rfkill,
623 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
Larry Fingerfe8e4e02009-01-09 16:40:54 -0800624 err = rfkill_register(bluetooth_rfkill);
Frans Pop6989d562009-01-29 14:25:14 -0800625 if (err)
Larry Fingerfe8e4e02009-01-09 16:40:54 -0800626 goto register_bluetooth_error;
Matthew Garrett3f6e2f12008-09-02 14:36:00 -0700627 }
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700628
Matthew Garrett3f6e2f12008-09-02 14:36:00 -0700629 if (wireless & 0x4) {
Johannes Berg19d337d2009-06-02 13:01:37 +0200630 wwan_rfkill = rfkill_alloc("hp-wwan", &device->dev,
631 RFKILL_TYPE_WWAN,
632 &hp_wmi_rfkill_ops,
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100633 (void *) HPWMI_WWAN);
634 rfkill_init_sw_state(wwan_rfkill,
635 hp_wmi_get_sw_state(HPWMI_WWAN));
636 rfkill_set_hw_state(wwan_rfkill,
637 hp_wmi_get_hw_state(HPWMI_WWAN));
Larry Fingerfe8e4e02009-01-09 16:40:54 -0800638 err = rfkill_register(wwan_rfkill);
639 if (err)
640 goto register_wwan_err;
Matthew Garrett3f6e2f12008-09-02 14:36:00 -0700641 }
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700642
643 return 0;
Larry Fingerfe8e4e02009-01-09 16:40:54 -0800644register_wwan_err:
Johannes Berg19d337d2009-06-02 13:01:37 +0200645 rfkill_destroy(wwan_rfkill);
Andrew Morton44f06062009-02-04 15:12:07 -0800646 if (bluetooth_rfkill)
647 rfkill_unregister(bluetooth_rfkill);
Larry Fingerfe8e4e02009-01-09 16:40:54 -0800648register_bluetooth_error:
Johannes Berg19d337d2009-06-02 13:01:37 +0200649 rfkill_destroy(bluetooth_rfkill);
Andrew Morton44f06062009-02-04 15:12:07 -0800650 if (wifi_rfkill)
651 rfkill_unregister(wifi_rfkill);
Johannes Berg19d337d2009-06-02 13:01:37 +0200652register_wifi_error:
653 rfkill_destroy(wifi_rfkill);
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700654add_sysfs_error:
655 cleanup_sysfs(device);
656 return err;
657}
658
659static int __exit hp_wmi_bios_remove(struct platform_device *device)
660{
661 cleanup_sysfs(device);
662
Johannes Berg19d337d2009-06-02 13:01:37 +0200663 if (wifi_rfkill) {
Matthew Garrett3f6e2f12008-09-02 14:36:00 -0700664 rfkill_unregister(wifi_rfkill);
Johannes Berg19d337d2009-06-02 13:01:37 +0200665 rfkill_destroy(wifi_rfkill);
666 }
667 if (bluetooth_rfkill) {
Matthew Garrett3f6e2f12008-09-02 14:36:00 -0700668 rfkill_unregister(bluetooth_rfkill);
Corentin Chary09729f02009-09-14 12:43:51 +0200669 rfkill_destroy(bluetooth_rfkill);
Johannes Berg19d337d2009-06-02 13:01:37 +0200670 }
671 if (wwan_rfkill) {
Matthew Garrett3f6e2f12008-09-02 14:36:00 -0700672 rfkill_unregister(wwan_rfkill);
Johannes Berg19d337d2009-06-02 13:01:37 +0200673 rfkill_destroy(wwan_rfkill);
674 }
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700675
676 return 0;
677}
678
Frans Pop8dd2b422009-08-20 20:38:13 +0200679static int hp_wmi_resume_handler(struct device *device)
Frans Pop4c395bd2009-03-04 11:55:28 -0800680{
Frans Pop4c395bd2009-03-04 11:55:28 -0800681 /*
Matthew Garrett871043b2009-06-01 15:25:45 +0100682 * Hardware state may have changed while suspended, so trigger
683 * input events for the current state. As this is a switch,
Frans Pop4c395bd2009-03-04 11:55:28 -0800684 * the input layer will only actually pass it on if the state
685 * changed.
686 */
Frans Popdaed9532009-07-30 17:16:05 -0400687 if (hp_wmi_input_dev) {
688 input_report_switch(hp_wmi_input_dev, SW_DOCK,
689 hp_wmi_dock_state());
690 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
691 hp_wmi_tablet_state());
692 input_sync(hp_wmi_input_dev);
693 }
Frans Pop4c395bd2009-03-04 11:55:28 -0800694
Alan Jenkinse5fbba82009-07-21 12:14:01 +0100695 if (wifi_rfkill)
696 rfkill_set_states(wifi_rfkill,
697 hp_wmi_get_sw_state(HPWMI_WIFI),
698 hp_wmi_get_hw_state(HPWMI_WIFI));
699 if (bluetooth_rfkill)
700 rfkill_set_states(bluetooth_rfkill,
701 hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
702 hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
703 if (wwan_rfkill)
704 rfkill_set_states(wwan_rfkill,
705 hp_wmi_get_sw_state(HPWMI_WWAN),
706 hp_wmi_get_hw_state(HPWMI_WWAN));
707
Frans Pop4c395bd2009-03-04 11:55:28 -0800708 return 0;
709}
710
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700711static int __init hp_wmi_init(void)
712{
713 int err;
Thomas Renningerb0966672010-07-20 15:19:29 -0700714 int event_capable = wmi_has_guid(HPWMI_EVENT_GUID);
715 int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID);
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700716
Thomas Renningerb0966672010-07-20 15:19:29 -0700717 if (event_capable) {
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700718 err = wmi_install_notify_handler(HPWMI_EVENT_GUID,
719 hp_wmi_notify, NULL);
Axel Lindfec5c42010-06-10 16:06:40 +0800720 if (ACPI_FAILURE(err))
721 return -EINVAL;
722 err = hp_wmi_input_setup();
723 if (err) {
724 wmi_remove_notify_handler(HPWMI_EVENT_GUID);
725 return err;
726 }
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700727 }
728
Thomas Renningerb0966672010-07-20 15:19:29 -0700729 if (bios_capable) {
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700730 err = platform_driver_register(&hp_wmi_driver);
731 if (err)
Axel Lindfec5c42010-06-10 16:06:40 +0800732 goto err_driver_reg;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700733 hp_wmi_platform_dev = platform_device_alloc("hp-wmi", -1);
734 if (!hp_wmi_platform_dev) {
Axel Lindfec5c42010-06-10 16:06:40 +0800735 err = -ENOMEM;
736 goto err_device_alloc;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700737 }
Axel Lindfec5c42010-06-10 16:06:40 +0800738 err = platform_device_add(hp_wmi_platform_dev);
739 if (err)
740 goto err_device_add;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700741 }
742
Thomas Renningerb0966672010-07-20 15:19:29 -0700743 if (!bios_capable && !event_capable)
744 return -ENODEV;
745
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700746 return 0;
Axel Lindfec5c42010-06-10 16:06:40 +0800747
748err_device_add:
749 platform_device_put(hp_wmi_platform_dev);
750err_device_alloc:
751 platform_driver_unregister(&hp_wmi_driver);
752err_driver_reg:
753 if (wmi_has_guid(HPWMI_EVENT_GUID)) {
754 input_unregister_device(hp_wmi_input_dev);
755 wmi_remove_notify_handler(HPWMI_EVENT_GUID);
756 }
757
758 return err;
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700759}
760
761static void __exit hp_wmi_exit(void)
762{
763 if (wmi_has_guid(HPWMI_EVENT_GUID)) {
764 wmi_remove_notify_handler(HPWMI_EVENT_GUID);
765 input_unregister_device(hp_wmi_input_dev);
766 }
767 if (hp_wmi_platform_dev) {
Axel Lin97ba0af2010-06-03 15:18:03 +0800768 platform_device_unregister(hp_wmi_platform_dev);
Matthew Garrett62ec30d2008-07-25 01:45:39 -0700769 platform_driver_unregister(&hp_wmi_driver);
770 }
771}
772
773module_init(hp_wmi_init);
774module_exit(hp_wmi_exit);