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Merge tag 'xfs-for-linus-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...
[deliverable/linux.git] / drivers / platform / x86 / asus-wmi.c
CommitLineData
ee027e4a 1/*
e12e6d94 2 * Asus PC WMI hotkey driver
ee027e4a
YW		 3 *
4 * Copyright(C) 2010 Intel Corporation.
57ab7dae 5 * Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com>
ee027e4a
YW		 6 *
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
81248889
YW		 27#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
28
ee027e4a
YW		 29#include <linux/kernel.h>
30#include <linux/module.h>
31#include <linux/init.h>
32#include <linux/types.h>
a32f3926 33#include <linux/slab.h>
ee027e4a
YW		 34#include <linux/input.h>
35#include <linux/input/sparse-keymap.h>
3d7b1655
YW		 36#include <linux/fb.h>
37#include <linux/backlight.h>
084fca63 38#include <linux/leds.h>
ba48fdb9 39#include <linux/rfkill.h>
afa7c886
CC		 40#include <linux/pci.h>
41#include <linux/pci_hotplug.h>
e07babde
CC		 42#include <linux/hwmon.h>
43#include <linux/hwmon-sysfs.h>
8c1b2d83
CC		 44#include <linux/debugfs.h>
45#include <linux/seq_file.h>
45f2c693 46#include <linux/platform_device.h>
6118b8ad 47#include <linux/thermal.h>
8b48463f 48#include <linux/acpi.h>
d8c66f62 49#include <linux/dmi.h>
272c77d5 50#include <acpi/video.h>
ee027e4a 51
e12e6d94 52#include "asus-wmi.h"
45f2c693 53
5909c654 54MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>, "
e12e6d94
CC		 55 "Yong Wang <yong.y.wang@intel.com>");
56MODULE_DESCRIPTION("Asus Generic WMI Driver");
ee027e4a
YW		 57MODULE_LICENSE("GPL");
58
e12e6d94
CC		 59#define to_platform_driver(drv) \
60 (container_of((drv), struct platform_driver, driver))
d358cb55 61
e12e6d94
CC		 62#define to_asus_wmi_driver(pdrv) \
63 (container_of((pdrv), struct asus_wmi_driver, platform_driver))
ee027e4a 64
e12e6d94 65#define ASUS_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66"
ee027e4a 66
33e0e6fe
CC		 67#define NOTIFY_BRNUP_MIN 0x11
68#define NOTIFY_BRNUP_MAX 0x1f
69#define NOTIFY_BRNDOWN_MIN 0x20
70#define NOTIFY_BRNDOWN_MAX 0x2e
e9809c0b
CC		 71#define NOTIFY_KBD_BRTUP 0xc4
72#define NOTIFY_KBD_BRTDWN 0xc5
ee027e4a 73
43815941 74/* WMI Methods */
2f686b54
CC		 75#define ASUS_WMI_METHODID_SPEC 0x43455053 /* BIOS SPECification */
76#define ASUS_WMI_METHODID_SFBD 0x44424653 /* Set First Boot Device */
77#define ASUS_WMI_METHODID_GLCD 0x44434C47 /* Get LCD status */
78#define ASUS_WMI_METHODID_GPID 0x44495047 /* Get Panel ID?? (Resol) */
79#define ASUS_WMI_METHODID_QMOD 0x444F4D51 /* Quiet MODe */
80#define ASUS_WMI_METHODID_SPLV 0x4C425053 /* Set Panel Light Value */
81#define ASUS_WMI_METHODID_SFUN 0x4E554653 /* FUNCtionalities */
82#define ASUS_WMI_METHODID_SDSP 0x50534453 /* Set DiSPlay output */
83#define ASUS_WMI_METHODID_GDSP 0x50534447 /* Get DiSPlay output */
84#define ASUS_WMI_METHODID_DEVP 0x50564544 /* DEVice Policy */
85#define ASUS_WMI_METHODID_OSVR 0x5256534F /* OS VeRsion */
86#define ASUS_WMI_METHODID_DSTS 0x53544344 /* Device STatuS */
87#define ASUS_WMI_METHODID_DSTS2 0x53545344 /* Device STatuS #2*/
88#define ASUS_WMI_METHODID_BSTS 0x53545342 /* Bios STatuS ? */
89#define ASUS_WMI_METHODID_DEVS 0x53564544 /* DEVice Set */
90#define ASUS_WMI_METHODID_CFVS 0x53564643 /* CPU Frequency Volt Set */
91#define ASUS_WMI_METHODID_KBFT 0x5446424B /* KeyBoard FilTer */
92#define ASUS_WMI_METHODID_INIT 0x54494E49 /* INITialize */
93#define ASUS_WMI_METHODID_HKEY 0x59454B48 /* Hot KEY ?? */
3d7b1655 94
d33da3b6
CC		 95#define ASUS_WMI_UNSUPPORTED_METHOD 0xFFFFFFFE
96
43815941 97/* Wireless */
2f686b54
CC		 98#define ASUS_WMI_DEVID_HW_SWITCH 0x00010001
99#define ASUS_WMI_DEVID_WIRELESS_LED 0x00010002
79ec1172 100#define ASUS_WMI_DEVID_CWAP 0x00010003
e12e6d94 101#define ASUS_WMI_DEVID_WLAN 0x00010011
a50bd128 102#define ASUS_WMI_DEVID_WLAN_LED 0x00010012
e12e6d94 103#define ASUS_WMI_DEVID_BLUETOOTH 0x00010013
2f686b54 104#define ASUS_WMI_DEVID_GPS 0x00010015
e12e6d94
CC		 105#define ASUS_WMI_DEVID_WIMAX 0x00010017
106#define ASUS_WMI_DEVID_WWAN3G 0x00010019
2f686b54
CC		 107#define ASUS_WMI_DEVID_UWB 0x00010021
108
109/* Leds */
110/* 0x000200XX and 0x000400XX */
79ec1172
CC		 111#define ASUS_WMI_DEVID_LED1 0x00020011
112#define ASUS_WMI_DEVID_LED2 0x00020012
113#define ASUS_WMI_DEVID_LED3 0x00020013
114#define ASUS_WMI_DEVID_LED4 0x00020014
115#define ASUS_WMI_DEVID_LED5 0x00020015
116#define ASUS_WMI_DEVID_LED6 0x00020016
43815941
CC		 117
118/* Backlight and Brightness */
e12e6d94
CC		 119#define ASUS_WMI_DEVID_BACKLIGHT 0x00050011
120#define ASUS_WMI_DEVID_BRIGHTNESS 0x00050012
2f686b54
CC		 121#define ASUS_WMI_DEVID_KBD_BACKLIGHT 0x00050021
122#define ASUS_WMI_DEVID_LIGHT_SENSOR 0x00050022 /* ?? */
43815941
CC		 123
124/* Misc */
e12e6d94 125#define ASUS_WMI_DEVID_CAMERA 0x00060013
43815941
CC		 126
127/* Storage */
e12e6d94 128#define ASUS_WMI_DEVID_CARDREADER 0x00080013
43815941
CC		 129
130/* Input */
57ab7dae 131#define ASUS_WMI_DEVID_TOUCHPAD 0x00100011
e12e6d94 132#define ASUS_WMI_DEVID_TOUCHPAD_LED 0x00100012
3d7b1655 133
2f686b54
CC		 134/* Fan, Thermal */
135#define ASUS_WMI_DEVID_THERMAL_CTRL 0x00110011
136#define ASUS_WMI_DEVID_FAN_CTRL 0x00110012
137
138/* Power */
139#define ASUS_WMI_DEVID_PROCESSOR_STATE 0x00120012
140
c0b91b6d
AK		 141/* Deep S3 / Resume on LID open */
142#define ASUS_WMI_DEVID_LID_RESUME 0x00120031
143
43815941 144/* DSTS masks */
e12e6d94 145#define ASUS_WMI_DSTS_STATUS_BIT 0x00000001
a75fe0d7 146#define ASUS_WMI_DSTS_UNKNOWN_BIT 0x00000002
e12e6d94 147#define ASUS_WMI_DSTS_PRESENCE_BIT 0x00010000
2f686b54
CC		 148#define ASUS_WMI_DSTS_USER_BIT 0x00020000
149#define ASUS_WMI_DSTS_BIOS_BIT 0x00040000
e12e6d94
CC		 150#define ASUS_WMI_DSTS_BRIGHTNESS_MASK 0x000000FF
151#define ASUS_WMI_DSTS_MAX_BRIGTH_MASK 0x0000FF00
ee027e4a 152
3d7b1655 153struct bios_args {
d33da3b6
CC		 154 u32 arg0;
155 u32 arg1;
156} __packed;
3d7b1655 157
8c1b2d83 158/*
e12e6d94 159 * <platform>/ - debugfs root directory
8c1b2d83
CC		 160 * dev_id - current dev_id
161 * ctrl_param - current ctrl_param
ef343491 162 * method_id - current method_id
8c1b2d83
CC		 163 * devs - call DEVS(dev_id, ctrl_param) and print result
164 * dsts - call DSTS(dev_id) and print result
ef343491 165 * call - call method_id(dev_id, ctrl_param) and print result
8c1b2d83 166 */
e12e6d94 167struct asus_wmi_debug {
8c1b2d83 168 struct dentry *root;
ef343491 169 u32 method_id;
8c1b2d83
CC		 170 u32 dev_id;
171 u32 ctrl_param;
172};
173
a7ce3f04
CC		 174struct asus_rfkill {
175 struct asus_wmi *asus;
176 struct rfkill *rfkill;
177 u32 dev_id;
178};
179
e12e6d94 180struct asus_wmi {
1d070f89 181 int dsts_id;
46dbca87
CC		 182 int spec;
183 int sfun;
1d070f89 184
81248889 185 struct input_dev *inputdev;
3d7b1655 186 struct backlight_device *backlight_device;
27c136c8 187 struct platform_device *platform_device;
084fca63 188
6cae06e6
AK		 189 struct led_classdev wlan_led;
190 int wlan_led_wk;
084fca63
CC		 191 struct led_classdev tpd_led;
192 int tpd_led_wk;
e9809c0b
CC		 193 struct led_classdev kbd_led;
194 int kbd_led_wk;
084fca63
CC		 195 struct workqueue_struct *led_workqueue;
196 struct work_struct tpd_led_work;
e9809c0b 197 struct work_struct kbd_led_work;
6cae06e6 198 struct work_struct wlan_led_work;
ba48fdb9 199
a7ce3f04
CC		 200 struct asus_rfkill wlan;
201 struct asus_rfkill bluetooth;
202 struct asus_rfkill wimax;
203 struct asus_rfkill wwan3g;
43be8bde 204 struct asus_rfkill gps;
a912d329 205 struct asus_rfkill uwb;
8c1b2d83 206
afa7c886
CC		 207 struct hotplug_slot *hotplug_slot;
208 struct mutex hotplug_lock;
279f8f95
CC		 209 struct mutex wmi_lock;
210 struct workqueue_struct *hotplug_workqueue;
211 struct work_struct hotplug_work;
afa7c886 212
e12e6d94
CC		 213 struct asus_wmi_debug debug;
214
215 struct asus_wmi_driver *driver;
81248889
YW		 216};
217
e12e6d94 218static int asus_wmi_input_init(struct asus_wmi *asus)
ee027e4a
YW		 219{
220 int err;
221
e12e6d94
CC		 222 asus->inputdev = input_allocate_device();
223 if (!asus->inputdev)
ee027e4a
YW		 224 return -ENOMEM;
225
58a9f397
CC		 226 asus->inputdev->name = asus->driver->input_name;
227 asus->inputdev->phys = asus->driver->input_phys;
e12e6d94
CC		 228 asus->inputdev->id.bustype = BUS_HOST;
229 asus->inputdev->dev.parent = &asus->platform_device->dev;
39bbde05 230 set_bit(EV_REP, asus->inputdev->evbit);
ee027e4a 231
e12e6d94 232 err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL);
ee027e4a
YW		 233 if (err)
234 goto err_free_dev;
235
e12e6d94 236 err = input_register_device(asus->inputdev);
ee027e4a
YW		 237 if (err)
238 goto err_free_keymap;
239
240 return 0;
241
242err_free_keymap:
e12e6d94 243 sparse_keymap_free(asus->inputdev);
ee027e4a 244err_free_dev:
e12e6d94 245 input_free_device(asus->inputdev);
ee027e4a
YW		 246 return err;
247}
248
e12e6d94 249static void asus_wmi_input_exit(struct asus_wmi *asus)
81248889 250{
e12e6d94
CC		 251 if (asus->inputdev) {
252 sparse_keymap_free(asus->inputdev);
253 input_unregister_device(asus->inputdev);
81248889
YW		 254 }
255
e12e6d94 256 asus->inputdev = NULL;
81248889
YW		 257}
258
d33da3b6
CC		 259static int asus_wmi_evaluate_method(u32 method_id, u32 arg0, u32 arg1,
260 u32 *retval)
3d7b1655 261{
d33da3b6
CC		 262 struct bios_args args = {
263 .arg0 = arg0,
264 .arg1 = arg1,
265 };
266 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
3d7b1655 267 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
3d7b1655 268 acpi_status status;
d33da3b6 269 union acpi_object *obj;
8ad3be1e 270 u32 tmp = 0;
3d7b1655 271
d33da3b6 272 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 1, method_id,
afa7c886 273 &input, &output);
3d7b1655
YW		 274
275 if (ACPI_FAILURE(status))
d33da3b6 276 goto exit;
3d7b1655
YW		 277
278 obj = (union acpi_object *)output.pointer;
279 if (obj && obj->type == ACPI_TYPE_INTEGER)
e12e6d94 280 tmp = (u32) obj->integer.value;
3d7b1655 281
2a3f0064
CC		 282 if (retval)
283 *retval = tmp;
3d7b1655
YW		 284
285 kfree(obj);
286
d33da3b6
CC		 287exit:
288 if (ACPI_FAILURE(status))
289 return -EIO;
290
291 if (tmp == ASUS_WMI_UNSUPPORTED_METHOD)
292 return -ENODEV;
3d7b1655 293
d33da3b6 294 return 0;
3d7b1655
YW		 295}
296
1d070f89 297static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval)
3d7b1655 298{
1d070f89 299 return asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval);
d33da3b6 300}
3d7b1655 301
d33da3b6 302static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
1d070f89 303 u32 *retval)
d33da3b6
CC		 304{
305 return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS, dev_id,
306 ctrl_param, retval);
3d7b1655
YW		 307}
308
5c95638d 309/* Helper for special devices with magic return codes */
1d070f89
CC		 310static int asus_wmi_get_devstate_bits(struct asus_wmi *asus,
311 u32 dev_id, u32 mask)
5c95638d
CC		 312{
313 u32 retval = 0;
d33da3b6 314 int err;
5c95638d 315
1d070f89 316 err = asus_wmi_get_devstate(asus, dev_id, &retval);
5c95638d 317
d33da3b6
CC		 318 if (err < 0)
319 return err;
5c95638d 320
e12e6d94 321 if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT))
5c95638d
CC		 322 return -ENODEV;
323
a75fe0d7
CC		 324 if (mask == ASUS_WMI_DSTS_STATUS_BIT) {
325 if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT)
326 return -ENODEV;
327 }
328
b7187265
CC		 329 return retval & mask;
330}
331
1d070f89 332static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id)
b7187265 333{
1d070f89
CC		 334 return asus_wmi_get_devstate_bits(asus, dev_id,
335 ASUS_WMI_DSTS_STATUS_BIT);
5c95638d
CC		 336}
337
084fca63
CC		 338/*
339 * LEDs
340 */
341/*
342 * These functions actually update the LED's, and are called from a
343 * workqueue. By doing this as separate work rather than when the LED
e12e6d94 344 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
084fca63
CC		 345 * potentially bad time, such as a timer interrupt.
346 */
347static void tpd_led_update(struct work_struct *work)
348{
349 int ctrl_param;
e12e6d94 350 struct asus_wmi *asus;
084fca63 351
e12e6d94 352 asus = container_of(work, struct asus_wmi, tpd_led_work);
084fca63 353
e12e6d94
CC		 354 ctrl_param = asus->tpd_led_wk;
355 asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
084fca63
CC		 356}
357
358static void tpd_led_set(struct led_classdev *led_cdev,
359 enum led_brightness value)
360{
e12e6d94 361 struct asus_wmi *asus;
084fca63 362
e12e6d94 363 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
084fca63 364
e12e6d94
CC		 365 asus->tpd_led_wk = !!value;
366 queue_work(asus->led_workqueue, &asus->tpd_led_work);
084fca63
CC		 367}
368
e12e6d94 369static int read_tpd_led_state(struct asus_wmi *asus)
084fca63 370{
1d070f89 371 return asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_TOUCHPAD_LED);
084fca63
CC		 372}
373
374static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
375{
e12e6d94 376 struct asus_wmi *asus;
084fca63 377
e12e6d94 378 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
084fca63 379
e12e6d94 380 return read_tpd_led_state(asus);
084fca63
CC		 381}
382
e9809c0b 383static void kbd_led_update(struct work_struct *work)
084fca63 384{
e9809c0b
CC		 385 int ctrl_param = 0;
386 struct asus_wmi *asus;
084fca63 387
e9809c0b 388 asus = container_of(work, struct asus_wmi, kbd_led_work);
084fca63 389
e9809c0b
CC		 390 /*
391 * bits 0-2: level
392 * bit 7: light on/off
393 */
394 if (asus->kbd_led_wk > 0)
395 ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F);
084fca63 396
e9809c0b
CC		 397 asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL);
398}
084fca63 399
e9809c0b
CC		 400static int kbd_led_read(struct asus_wmi *asus, int *level, int *env)
401{
402 int retval;
403
404 /*
405 * bits 0-2: level
406 * bit 7: light on/off
407 * bit 8-10: environment (0: dark, 1: normal, 2: light)
408 * bit 17: status unknown
409 */
410 retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT,
411 0xFFFF);
412
af965e97 413 /* Unknown status is considered as off */
e9809c0b 414 if (retval == 0x8000)
af965e97 415 retval = 0;
e9809c0b
CC		 416
417 if (retval >= 0) {
418 if (level)
c09b2237 419 *level = retval & 0x7F;
e9809c0b
CC		 420 if (env)
421 *env = (retval >> 8) & 0x7F;
422 retval = 0;
084fca63
CC		 423 }
424
e9809c0b
CC		 425 return retval;
426}
427
428static void kbd_led_set(struct led_classdev *led_cdev,
429 enum led_brightness value)
430{
431 struct asus_wmi *asus;
432
433 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
434
435 if (value > asus->kbd_led.max_brightness)
436 value = asus->kbd_led.max_brightness;
437 else if (value < 0)
438 value = 0;
439
440 asus->kbd_led_wk = value;
441 queue_work(asus->led_workqueue, &asus->kbd_led_work);
442}
443
444static enum led_brightness kbd_led_get(struct led_classdev *led_cdev)
445{
446 struct asus_wmi *asus;
447 int retval, value;
448
449 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
450
451 retval = kbd_led_read(asus, &value, NULL);
452
453 if (retval < 0)
454 return retval;
455
456 return value;
084fca63
CC		 457}
458
6cae06e6
AK		 459static int wlan_led_unknown_state(struct asus_wmi *asus)
460{
461 u32 result;
462
463 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
464
465 return result & ASUS_WMI_DSTS_UNKNOWN_BIT;
466}
467
468static int wlan_led_presence(struct asus_wmi *asus)
469{
470 u32 result;
471
472 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
473
474 return result & ASUS_WMI_DSTS_PRESENCE_BIT;
475}
476
477static void wlan_led_update(struct work_struct *work)
478{
479 int ctrl_param;
480 struct asus_wmi *asus;
481
482 asus = container_of(work, struct asus_wmi, wlan_led_work);
483
484 ctrl_param = asus->wlan_led_wk;
485 asus_wmi_set_devstate(ASUS_WMI_DEVID_WIRELESS_LED, ctrl_param, NULL);
486}
487
488static void wlan_led_set(struct led_classdev *led_cdev,
489 enum led_brightness value)
490{
491 struct asus_wmi *asus;
492
493 asus = container_of(led_cdev, struct asus_wmi, wlan_led);
494
495 asus->wlan_led_wk = !!value;
496 queue_work(asus->led_workqueue, &asus->wlan_led_work);
497}
498
499static enum led_brightness wlan_led_get(struct led_classdev *led_cdev)
500{
501 struct asus_wmi *asus;
502 u32 result;
503
504 asus = container_of(led_cdev, struct asus_wmi, wlan_led);
505 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
506
507 return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
508}
509
e12e6d94 510static void asus_wmi_led_exit(struct asus_wmi *asus)
084fca63 511{
e9298028
AL		 512 if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
513 led_classdev_unregister(&asus->kbd_led);
514 if (!IS_ERR_OR_NULL(asus->tpd_led.dev))
e12e6d94 515 led_classdev_unregister(&asus->tpd_led);
6cae06e6
AK		 516 if (!IS_ERR_OR_NULL(asus->wlan_led.dev))
517 led_classdev_unregister(&asus->wlan_led);
e12e6d94
CC		 518 if (asus->led_workqueue)
519 destroy_workqueue(asus->led_workqueue);
084fca63
CC		 520}
521
e9809c0b
CC		 522static int asus_wmi_led_init(struct asus_wmi *asus)
523{
524 int rv = 0;
525
526 asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
527 if (!asus->led_workqueue)
528 return -ENOMEM;
529
530 if (read_tpd_led_state(asus) >= 0) {
531 INIT_WORK(&asus->tpd_led_work, tpd_led_update);
532
533 asus->tpd_led.name = "asus::touchpad";
534 asus->tpd_led.brightness_set = tpd_led_set;
535 asus->tpd_led.brightness_get = tpd_led_get;
536 asus->tpd_led.max_brightness = 1;
537
538 rv = led_classdev_register(&asus->platform_device->dev,
539 &asus->tpd_led);
540 if (rv)
541 goto error;
542 }
543
544 if (kbd_led_read(asus, NULL, NULL) >= 0) {
545 INIT_WORK(&asus->kbd_led_work, kbd_led_update);
546
547 asus->kbd_led.name = "asus::kbd_backlight";
548 asus->kbd_led.brightness_set = kbd_led_set;
549 asus->kbd_led.brightness_get = kbd_led_get;
550 asus->kbd_led.max_brightness = 3;
551
552 rv = led_classdev_register(&asus->platform_device->dev,
553 &asus->kbd_led);
6cae06e6
AK		 554 if (rv)
555 goto error;
556 }
557
f515623c 558 if (wlan_led_presence(asus) && (asus->driver->quirks->wapf > 0)) {
6cae06e6
AK		 559 INIT_WORK(&asus->wlan_led_work, wlan_led_update);
560
561 asus->wlan_led.name = "asus::wlan";
562 asus->wlan_led.brightness_set = wlan_led_set;
563 if (!wlan_led_unknown_state(asus))
564 asus->wlan_led.brightness_get = wlan_led_get;
565 asus->wlan_led.flags = LED_CORE_SUSPENDRESUME;
566 asus->wlan_led.max_brightness = 1;
567 asus->wlan_led.default_trigger = "asus-wlan";
568
569 rv = led_classdev_register(&asus->platform_device->dev,
570 &asus->wlan_led);
e9809c0b
CC		 571 }
572
573error:
574 if (rv)
575 asus_wmi_led_exit(asus);
576
577 return rv;
578}
579
580
afa7c886
CC		 581/*
582 * PCI hotplug (for wlan rfkill)
583 */
e12e6d94 584static bool asus_wlan_rfkill_blocked(struct asus_wmi *asus)
afa7c886 585{
1d070f89 586 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
afa7c886 587
5c95638d 588 if (result < 0)
afa7c886 589 return false;
5c95638d 590 return !result;
afa7c886
CC		 591}
592
e12e6d94 593static void asus_rfkill_hotplug(struct asus_wmi *asus)
afa7c886
CC		 594{
595 struct pci_dev *dev;
596 struct pci_bus *bus;
279f8f95 597 bool blocked;
afa7c886
CC		 598 bool absent;
599 u32 l;
600
e12e6d94
CC		 601 mutex_lock(&asus->wmi_lock);
602 blocked = asus_wlan_rfkill_blocked(asus);
603 mutex_unlock(&asus->wmi_lock);
afa7c886 604
e12e6d94 605 mutex_lock(&asus->hotplug_lock);
8b9ec1da 606 pci_lock_rescan_remove();
afa7c886 607
a7ce3f04
CC		 608 if (asus->wlan.rfkill)
609 rfkill_set_sw_state(asus->wlan.rfkill, blocked);
279f8f95 610
e12e6d94 611 if (asus->hotplug_slot) {
afa7c886
CC		 612 bus = pci_find_bus(0, 1);
613 if (!bus) {
5ad77dcf 614 pr_warn("Unable to find PCI bus 1?\n");
afa7c886
CC		 615 goto out_unlock;
616 }
617
618 if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
619 pr_err("Unable to read PCI config space?\n");
620 goto out_unlock;
621 }
622 absent = (l == 0xffffffff);
623
624 if (blocked != absent) {
5ad77dcf
JP		 625 pr_warn("BIOS says wireless lan is %s, "
626 "but the pci device is %s\n",
627 blocked ? "blocked" : "unblocked",
628 absent ? "absent" : "present");
629 pr_warn("skipped wireless hotplug as probably "
630 "inappropriate for this model\n");
afa7c886
CC		 631 goto out_unlock;
632 }
633
634 if (!blocked) {
635 dev = pci_get_slot(bus, 0);
636 if (dev) {
637 /* Device already present */
638 pci_dev_put(dev);
639 goto out_unlock;
640 }
641 dev = pci_scan_single_device(bus, 0);
642 if (dev) {
643 pci_bus_assign_resources(bus);
c893d133 644 pci_bus_add_device(dev);
afa7c886
CC		 645 }
646 } else {
647 dev = pci_get_slot(bus, 0);
648 if (dev) {
210647af 649 pci_stop_and_remove_bus_device(dev);
afa7c886
CC		 650 pci_dev_put(dev);
651 }
652 }
653 }
654
655out_unlock:
8b9ec1da 656 pci_unlock_rescan_remove();
e12e6d94 657 mutex_unlock(&asus->hotplug_lock);
afa7c886
CC		 658}
659
e12e6d94 660static void asus_rfkill_notify(acpi_handle handle, u32 event, void *data)
afa7c886 661{
e12e6d94 662 struct asus_wmi *asus = data;
afa7c886
CC		 663
664 if (event != ACPI_NOTIFY_BUS_CHECK)
665 return;
666
279f8f95 667 /*
e12e6d94 668 * We can't call directly asus_rfkill_hotplug because most
279f8f95
CC		 669 * of the time WMBC is still being executed and not reetrant.
670 * There is currently no way to tell ACPICA that we want this
e12e6d94 671 * method to be serialized, we schedule a asus_rfkill_hotplug
279f8f95
CC		 672 * call later, in a safer context.
673 */
e12e6d94 674 queue_work(asus->hotplug_workqueue, &asus->hotplug_work);
afa7c886
CC		 675}
676
e12e6d94 677static int asus_register_rfkill_notifier(struct asus_wmi *asus, char *node)
afa7c886
CC		 678{
679 acpi_status status;
680 acpi_handle handle;
681
682 status = acpi_get_handle(NULL, node, &handle);
683
684 if (ACPI_SUCCESS(status)) {
685 status = acpi_install_notify_handler(handle,
686 ACPI_SYSTEM_NOTIFY,
e12e6d94 687 asus_rfkill_notify, asus);
afa7c886 688 if (ACPI_FAILURE(status))
5ad77dcf 689 pr_warn("Failed to register notify on %s\n", node);
afa7c886
CC		 690 } else
691 return -ENODEV;
692
693 return 0;
694}
695
e12e6d94 696static void asus_unregister_rfkill_notifier(struct asus_wmi *asus, char *node)
afa7c886
CC		 697{
698 acpi_status status = AE_OK;
699 acpi_handle handle;
700
701 status = acpi_get_handle(NULL, node, &handle);
702
703 if (ACPI_SUCCESS(status)) {
704 status = acpi_remove_notify_handler(handle,
e12e6d94
CC		 705 ACPI_SYSTEM_NOTIFY,
706 asus_rfkill_notify);
afa7c886
CC		 707 if (ACPI_FAILURE(status))
708 pr_err("Error removing rfkill notify handler %s\n",
e12e6d94 709 node);
afa7c886
CC		 710 }
711}
712
e12e6d94
CC		 713static int asus_get_adapter_status(struct hotplug_slot *hotplug_slot,
714 u8 *value)
afa7c886 715{
1d070f89
CC		 716 struct asus_wmi *asus = hotplug_slot->private;
717 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
afa7c886 718
5c95638d
CC		 719 if (result < 0)
720 return result;
afa7c886 721
5c95638d 722 *value = !!result;
afa7c886
CC		 723 return 0;
724}
725
e12e6d94 726static void asus_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot)
afa7c886
CC		 727{
728 kfree(hotplug_slot->info);
729 kfree(hotplug_slot);
730}
731
e12e6d94 732static struct hotplug_slot_ops asus_hotplug_slot_ops = {
afa7c886 733 .owner = THIS_MODULE,
e12e6d94
CC		 734 .get_adapter_status = asus_get_adapter_status,
735 .get_power_status = asus_get_adapter_status,
afa7c886
CC		 736};
737
e12e6d94 738static void asus_hotplug_work(struct work_struct *work)
279f8f95 739{
e12e6d94 740 struct asus_wmi *asus;
279f8f95 741
e12e6d94
CC		 742 asus = container_of(work, struct asus_wmi, hotplug_work);
743 asus_rfkill_hotplug(asus);
279f8f95
CC		 744}
745
e12e6d94 746static int asus_setup_pci_hotplug(struct asus_wmi *asus)
afa7c886
CC		 747{
748 int ret = -ENOMEM;
749 struct pci_bus *bus = pci_find_bus(0, 1);
750
751 if (!bus) {
752 pr_err("Unable to find wifi PCI bus\n");
753 return -ENODEV;
754 }
755
e12e6d94
CC		 756 asus->hotplug_workqueue =
757 create_singlethread_workqueue("hotplug_workqueue");
758 if (!asus->hotplug_workqueue)
279f8f95
CC		 759 goto error_workqueue;
760
e12e6d94 761 INIT_WORK(&asus->hotplug_work, asus_hotplug_work);
279f8f95 762
e12e6d94
CC		 763 asus->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
764 if (!asus->hotplug_slot)
afa7c886
CC		 765 goto error_slot;
766
e12e6d94
CC		 767 asus->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info),
768 GFP_KERNEL);
769 if (!asus->hotplug_slot->info)
afa7c886
CC		 770 goto error_info;
771
e12e6d94
CC		 772 asus->hotplug_slot->private = asus;
773 asus->hotplug_slot->release = &asus_cleanup_pci_hotplug;
774 asus->hotplug_slot->ops = &asus_hotplug_slot_ops;
775 asus_get_adapter_status(asus->hotplug_slot,
776 &asus->hotplug_slot->info->adapter_status);
afa7c886 777
e12e6d94 778 ret = pci_hp_register(asus->hotplug_slot, bus, 0, "asus-wifi");
afa7c886
CC		 779 if (ret) {
780 pr_err("Unable to register hotplug slot - %d\n", ret);
781 goto error_register;
782 }
783
784 return 0;
785
786error_register:
e12e6d94 787 kfree(asus->hotplug_slot->info);
afa7c886 788error_info:
e12e6d94
CC		 789 kfree(asus->hotplug_slot);
790 asus->hotplug_slot = NULL;
afa7c886 791error_slot:
e12e6d94 792 destroy_workqueue(asus->hotplug_workqueue);
279f8f95 793error_workqueue:
afa7c886
CC		 794 return ret;
795}
796
ba48fdb9
CC		 797/*
798 * Rfkill devices
799 */
e12e6d94 800static int asus_rfkill_set(void *data, bool blocked)
ba48fdb9 801{
a7ce3f04 802 struct asus_rfkill *priv = data;
ba48fdb9 803 u32 ctrl_param = !blocked;
a50bd128 804 u32 dev_id = priv->dev_id;
ba48fdb9 805
a50bd128
AK		 806 /*
807 * If the user bit is set, BIOS can't set and record the wlan status,
808 * it will report the value read from id ASUS_WMI_DEVID_WLAN_LED
809 * while we query the wlan status through WMI(ASUS_WMI_DEVID_WLAN).
810 * So, we have to record wlan status in id ASUS_WMI_DEVID_WLAN_LED
811 * while setting the wlan status through WMI.
812 * This is also the behavior that windows app will do.
813 */
814 if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
815 priv->asus->driver->wlan_ctrl_by_user)
816 dev_id = ASUS_WMI_DEVID_WLAN_LED;
817
818 return asus_wmi_set_devstate(dev_id, ctrl_param, NULL);
ba48fdb9
CC		 819}
820
e12e6d94 821static void asus_rfkill_query(struct rfkill *rfkill, void *data)
ba48fdb9 822{
a7ce3f04 823 struct asus_rfkill *priv = data;
5c95638d 824 int result;
ba48fdb9 825
1d070f89 826 result = asus_wmi_get_devstate_simple(priv->asus, priv->dev_id);
ba48fdb9 827
5c95638d 828 if (result < 0)
e12e6d94 829 return;
ba48fdb9 830
a7ce3f04 831 rfkill_set_sw_state(priv->rfkill, !result);
ba48fdb9
CC		 832}
833
e12e6d94 834static int asus_rfkill_wlan_set(void *data, bool blocked)
279f8f95 835{
a7ce3f04
CC		 836 struct asus_rfkill *priv = data;
837 struct asus_wmi *asus = priv->asus;
279f8f95
CC		 838 int ret;
839
840 /*
841 * This handler is enabled only if hotplug is enabled.
e12e6d94 842 * In this case, the asus_wmi_set_devstate() will
279f8f95
CC		 843 * trigger a wmi notification and we need to wait
844 * this call to finish before being able to call
845 * any wmi method
846 */
e12e6d94 847 mutex_lock(&asus->wmi_lock);
a7ce3f04 848 ret = asus_rfkill_set(data, blocked);
e12e6d94 849 mutex_unlock(&asus->wmi_lock);
279f8f95
CC		 850 return ret;
851}
852
e12e6d94
CC		 853static const struct rfkill_ops asus_rfkill_wlan_ops = {
854 .set_block = asus_rfkill_wlan_set,
a7ce3f04 855 .query = asus_rfkill_query,
279f8f95
CC		 856};
857
e12e6d94
CC		 858static const struct rfkill_ops asus_rfkill_ops = {
859 .set_block = asus_rfkill_set,
860 .query = asus_rfkill_query,
ba48fdb9
CC		 861};
862
e12e6d94 863static int asus_new_rfkill(struct asus_wmi *asus,
a7ce3f04 864 struct asus_rfkill *arfkill,
e12e6d94 865 const char *name, enum rfkill_type type, int dev_id)
ba48fdb9 866{
1d070f89 867 int result = asus_wmi_get_devstate_simple(asus, dev_id);
a7ce3f04 868 struct rfkill **rfkill = &arfkill->rfkill;
ba48fdb9 869
5c95638d
CC		 870 if (result < 0)
871 return result;
ba48fdb9 872
a7ce3f04
CC		 873 arfkill->dev_id = dev_id;
874 arfkill->asus = asus;
875
c87992d1
AK		 876 if (dev_id == ASUS_WMI_DEVID_WLAN &&
877 asus->driver->quirks->hotplug_wireless)
e12e6d94 878 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
a7ce3f04 879 &asus_rfkill_wlan_ops, arfkill);
279f8f95 880 else
e12e6d94 881 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
a7ce3f04 882 &asus_rfkill_ops, arfkill);
ba48fdb9
CC		 883
884 if (!*rfkill)
885 return -EINVAL;
886
e8f56c80 887 if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
f515623c 888 (asus->driver->quirks->wapf > 0))
6cae06e6
AK		 889 rfkill_set_led_trigger_name(*rfkill, "asus-wlan");
890
5c95638d 891 rfkill_init_sw_state(*rfkill, !result);
ba48fdb9
CC		 892 result = rfkill_register(*rfkill);
893 if (result) {
894 rfkill_destroy(*rfkill);
895 *rfkill = NULL;
896 return result;
897 }
898 return 0;
899}
900
e12e6d94 901static void asus_wmi_rfkill_exit(struct asus_wmi *asus)
ba48fdb9 902{
e12e6d94
CC		 903 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
904 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
905 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
a7ce3f04
CC		 906 if (asus->wlan.rfkill) {
907 rfkill_unregister(asus->wlan.rfkill);
908 rfkill_destroy(asus->wlan.rfkill);
909 asus->wlan.rfkill = NULL;
ba48fdb9 910 }
afa7c886
CC		 911 /*
912 * Refresh pci hotplug in case the rfkill state was changed after
e12e6d94 913 * asus_unregister_rfkill_notifier()
afa7c886 914 */
e12e6d94
CC		 915 asus_rfkill_hotplug(asus);
916 if (asus->hotplug_slot)
917 pci_hp_deregister(asus->hotplug_slot);
918 if (asus->hotplug_workqueue)
919 destroy_workqueue(asus->hotplug_workqueue);
920
a7ce3f04
CC		 921 if (asus->bluetooth.rfkill) {
922 rfkill_unregister(asus->bluetooth.rfkill);
923 rfkill_destroy(asus->bluetooth.rfkill);
924 asus->bluetooth.rfkill = NULL;
ba48fdb9 925 }
a7ce3f04
CC		 926 if (asus->wimax.rfkill) {
927 rfkill_unregister(asus->wimax.rfkill);
928 rfkill_destroy(asus->wimax.rfkill);
929 asus->wimax.rfkill = NULL;
2e9e159d 930 }
a7ce3f04
CC		 931 if (asus->wwan3g.rfkill) {
932 rfkill_unregister(asus->wwan3g.rfkill);
933 rfkill_destroy(asus->wwan3g.rfkill);
934 asus->wwan3g.rfkill = NULL;
ba48fdb9 935 }
43be8bde
CC		 936 if (asus->gps.rfkill) {
937 rfkill_unregister(asus->gps.rfkill);
938 rfkill_destroy(asus->gps.rfkill);
939 asus->gps.rfkill = NULL;
940 }
a912d329
CC		 941 if (asus->uwb.rfkill) {
942 rfkill_unregister(asus->uwb.rfkill);
943 rfkill_destroy(asus->uwb.rfkill);
944 asus->uwb.rfkill = NULL;
945 }
ba48fdb9
CC		 946}
947
e12e6d94 948static int asus_wmi_rfkill_init(struct asus_wmi *asus)
ba48fdb9
CC		 949{
950 int result = 0;
951
e12e6d94
CC		 952 mutex_init(&asus->hotplug_lock);
953 mutex_init(&asus->wmi_lock);
afa7c886 954
a7ce3f04
CC		 955 result = asus_new_rfkill(asus, &asus->wlan, "asus-wlan",
956 RFKILL_TYPE_WLAN, ASUS_WMI_DEVID_WLAN);
ba48fdb9
CC		 957
958 if (result && result != -ENODEV)
959 goto exit;
960
a7ce3f04 961 result = asus_new_rfkill(asus, &asus->bluetooth,
e12e6d94
CC		 962 "asus-bluetooth", RFKILL_TYPE_BLUETOOTH,
963 ASUS_WMI_DEVID_BLUETOOTH);
ba48fdb9
CC		 964
965 if (result && result != -ENODEV)
966 goto exit;
967
a7ce3f04
CC		 968 result = asus_new_rfkill(asus, &asus->wimax, "asus-wimax",
969 RFKILL_TYPE_WIMAX, ASUS_WMI_DEVID_WIMAX);
2e9e159d
CC		 970
971 if (result && result != -ENODEV)
972 goto exit;
973
a7ce3f04
CC		 974 result = asus_new_rfkill(asus, &asus->wwan3g, "asus-wwan3g",
975 RFKILL_TYPE_WWAN, ASUS_WMI_DEVID_WWAN3G);
ba48fdb9
CC		 976
977 if (result && result != -ENODEV)
978 goto exit;
979
43be8bde
CC		 980 result = asus_new_rfkill(asus, &asus->gps, "asus-gps",
981 RFKILL_TYPE_GPS, ASUS_WMI_DEVID_GPS);
982
983 if (result && result != -ENODEV)
984 goto exit;
985
a912d329
CC		 986 result = asus_new_rfkill(asus, &asus->uwb, "asus-uwb",
987 RFKILL_TYPE_UWB, ASUS_WMI_DEVID_UWB);
988
989 if (result && result != -ENODEV)
990 goto exit;
991
c87992d1 992 if (!asus->driver->quirks->hotplug_wireless)
c14d4b8e
CC		 993 goto exit;
994
e12e6d94 995 result = asus_setup_pci_hotplug(asus);
afa7c886
CC		 996 /*
997 * If we get -EBUSY then something else is handling the PCI hotplug -
998 * don't fail in this case
999 */
1000 if (result == -EBUSY)
1001 result = 0;
1002
e12e6d94
CC		 1003 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
1004 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
1005 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
afa7c886
CC		 1006 /*
1007 * Refresh pci hotplug in case the rfkill state was changed during
1008 * setup.
1009 */
e12e6d94 1010 asus_rfkill_hotplug(asus);
afa7c886 1011
ba48fdb9
CC		 1012exit:
1013 if (result && result != -ENODEV)
e12e6d94 1014 asus_wmi_rfkill_exit(asus);
ba48fdb9
CC		 1015
1016 if (result == -ENODEV)
1017 result = 0;
1018
1019 return result;
1020}
1021
e07babde
CC		 1022/*
1023 * Hwmon device
1024 */
1025static ssize_t asus_hwmon_pwm1(struct device *dev,
49979d09
CC		 1026 struct device_attribute *attr,
1027 char *buf)
e07babde
CC		 1028{
1029 struct asus_wmi *asus = dev_get_drvdata(dev);
1030 u32 value;
1031 int err;
1032
1033 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
1034
1035 if (err < 0)
1036 return err;
1037
49979d09 1038 value &= 0xFF;
e07babde
CC		 1039
1040 if (value == 1) /* Low Speed */
1041 value = 85;
1042 else if (value == 2)
1043 value = 170;
1044 else if (value == 3)
1045 value = 255;
1046 else if (value != 0) {
0ed60654 1047 pr_err("Unknown fan speed %#x\n", value);
e07babde
CC		 1048 value = -1;
1049 }
1050
1051 return sprintf(buf, "%d\n", value);
1052}
1053
6118b8ad
CC		 1054static ssize_t asus_hwmon_temp1(struct device *dev,
1055 struct device_attribute *attr,
1056 char *buf)
1057{
1058 struct asus_wmi *asus = dev_get_drvdata(dev);
1059 u32 value;
1060 int err;
1061
1062 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_THERMAL_CTRL, &value);
1063
1064 if (err < 0)
1065 return err;
1066
1067 value = KELVIN_TO_CELSIUS((value & 0xFFFF)) * 1000;
1068
1069 return sprintf(buf, "%d\n", value);
1070}
1071
50a639fb
GR		 1072static DEVICE_ATTR(pwm1, S_IRUGO, asus_hwmon_pwm1, NULL);
1073static DEVICE_ATTR(temp1_input, S_IRUGO, asus_hwmon_temp1, NULL);
e07babde
CC		 1074
1075static struct attribute *hwmon_attributes[] = {
50a639fb
GR		 1076 &dev_attr_pwm1.attr,
1077 &dev_attr_temp1_input.attr,
e07babde
CC		 1078 NULL
1079};
1080
587a1f16 1081static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
e02431d6 1082 struct attribute *attr, int idx)
e07babde
CC		 1083{
1084 struct device *dev = container_of(kobj, struct device, kobj);
1085 struct platform_device *pdev = to_platform_device(dev->parent);
1086 struct asus_wmi *asus = platform_get_drvdata(pdev);
1087 bool ok = true;
1088 int dev_id = -1;
1089 u32 value = ASUS_WMI_UNSUPPORTED_METHOD;
1090
50a639fb 1091 if (attr == &dev_attr_pwm1.attr)
e07babde 1092 dev_id = ASUS_WMI_DEVID_FAN_CTRL;
50a639fb 1093 else if (attr == &dev_attr_temp1_input.attr)
e02431d6 1094 dev_id = ASUS_WMI_DEVID_THERMAL_CTRL;
e07babde
CC		 1095
1096 if (dev_id != -1) {
1097 int err = asus_wmi_get_devstate(asus, dev_id, &value);
1098
1099 if (err < 0)
e772aed3 1100 return 0; /* can't return negative here */
e07babde
CC		 1101 }
1102
1103 if (dev_id == ASUS_WMI_DEVID_FAN_CTRL) {
1104 /*
1105 * We need to find a better way, probably using sfun,
1106 * bits or spec ...
1107 * Currently we disable it if:
1108 * - ASUS_WMI_UNSUPPORTED_METHOD is returned
1109 * - reverved bits are non-zero
1110 * - sfun and presence bit are not set
1111 */
49979d09 1112 if (value == ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000
e07babde
CC		 1113 || (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT)))
1114 ok = false;
e02431d6
CC		 1115 } else if (dev_id == ASUS_WMI_DEVID_THERMAL_CTRL) {
1116 /* If value is zero, something is clearly wrong */
1117 if (value == 0)
1118 ok = false;
e07babde
CC		 1119 }
1120
1121 return ok ? attr->mode : 0;
1122}
1123
1124static struct attribute_group hwmon_attribute_group = {
1125 .is_visible = asus_hwmon_sysfs_is_visible,
1126 .attrs = hwmon_attributes
1127};
50a639fb 1128__ATTRIBUTE_GROUPS(hwmon_attribute);
e07babde
CC		 1129
1130static int asus_wmi_hwmon_init(struct asus_wmi *asus)
1131{
1132 struct device *hwmon;
e07babde 1133
50a639fb
GR		 1134 hwmon = hwmon_device_register_with_groups(&asus->platform_device->dev,
1135 "asus", asus,
1136 hwmon_attribute_groups);
e07babde
CC		 1137 if (IS_ERR(hwmon)) {
1138 pr_err("Could not register asus hwmon device\n");
1139 return PTR_ERR(hwmon);
1140 }
50a639fb 1141 return 0;
e07babde
CC		 1142}
1143
084fca63
CC		 1144/*
1145 * Backlight
1146 */
1d070f89 1147static int read_backlight_power(struct asus_wmi *asus)
b7187265 1148{
6e0044be
AK		 1149 int ret;
1150 if (asus->driver->quirks->store_backlight_power)
1151 ret = !asus->driver->panel_power;
1152 else
1153 ret = asus_wmi_get_devstate_simple(asus,
1154 ASUS_WMI_DEVID_BACKLIGHT);
b7187265
CC		 1155
1156 if (ret < 0)
1157 return ret;
1158
1159 return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
1160}
1161
8fbea019 1162static int read_brightness_max(struct asus_wmi *asus)
3d7b1655 1163{
dfed65d5 1164 u32 retval;
d33da3b6 1165 int err;
3d7b1655 1166
1d070f89 1167 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
3d7b1655 1168
8fbea019
CC		 1169 if (err < 0)
1170 return err;
1171
1172 retval = retval & ASUS_WMI_DSTS_MAX_BRIGTH_MASK;
1173 retval >>= 8;
1174
1175 if (!retval)
1176 return -ENODEV;
1177
1178 return retval;
1179}
1180
1181static int read_brightness(struct backlight_device *bd)
1182{
1183 struct asus_wmi *asus = bl_get_data(bd);
0986f25f
DC		 1184 u32 retval;
1185 int err;
8fbea019
CC		 1186
1187 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
1188
d33da3b6
CC		 1189 if (err < 0)
1190 return err;
1191
1192 return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
3d7b1655
YW		 1193}
1194
c87992d1 1195static u32 get_scalar_command(struct backlight_device *bd)
3d7b1655 1196{
1d070f89 1197 struct asus_wmi *asus = bl_get_data(bd);
c87992d1 1198 u32 ctrl_param = 0;
3d7b1655 1199
c87992d1
AK		 1200 if ((asus->driver->brightness < bd->props.brightness) ||
1201 bd->props.brightness == bd->props.max_brightness)
1202 ctrl_param = 0x00008001;
1203 else if ((asus->driver->brightness > bd->props.brightness) ||
1204 bd->props.brightness == 0)
1205 ctrl_param = 0x00008000;
3d7b1655 1206
c87992d1 1207 asus->driver->brightness = bd->props.brightness;
3d7b1655 1208
c87992d1
AK		 1209 return ctrl_param;
1210}
1211
3d7b1655
YW		 1212static int update_bl_status(struct backlight_device *bd)
1213{
1d070f89 1214 struct asus_wmi *asus = bl_get_data(bd);
dfed65d5 1215 u32 ctrl_param;
6e0044be 1216 int power, err = 0;
b7187265 1217
1d070f89 1218 power = read_backlight_power(asus);
b7187265
CC		 1219 if (power != -ENODEV && bd->props.power != power) {
1220 ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK);
d33da3b6
CC		 1221 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT,
1222 ctrl_param, NULL);
6e0044be
AK		 1223 if (asus->driver->quirks->store_backlight_power)
1224 asus->driver->panel_power = bd->props.power;
6e0044be 1225
ade28abd
CC		 1226 /* When using scalar brightness, updating the brightness
1227 * will mess with the backlight power */
1228 if (asus->driver->quirks->scalar_panel_brightness)
1229 return err;
b7187265 1230 }
ade28abd
CC		 1231
1232 if (asus->driver->quirks->scalar_panel_brightness)
1233 ctrl_param = get_scalar_command(bd);
1234 else
1235 ctrl_param = bd->props.brightness;
1236
1237 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS,
1238 ctrl_param, NULL);
1239
8fbea019 1240 return err;
3d7b1655
YW		 1241}
1242
e12e6d94 1243static const struct backlight_ops asus_wmi_bl_ops = {
3d7b1655
YW		 1244 .get_brightness = read_brightness,
1245 .update_status = update_bl_status,
1246};
1247
e12e6d94 1248static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code)
3d7b1655 1249{
e12e6d94 1250 struct backlight_device *bd = asus->backlight_device;
3d7b1655 1251 int old = bd->props.brightness;
b7670ed6 1252 int new = old;
3d7b1655
YW		 1253
1254 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
1255 new = code - NOTIFY_BRNUP_MIN + 1;
1256 else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
1257 new = code - NOTIFY_BRNDOWN_MIN;
1258
1259 bd->props.brightness = new;
1260 backlight_update_status(bd);
1261 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
1262
1263 return old;
1264}
1265
e12e6d94 1266static int asus_wmi_backlight_init(struct asus_wmi *asus)
3d7b1655
YW		 1267{
1268 struct backlight_device *bd;
1269 struct backlight_properties props;
b7187265
CC		 1270 int max;
1271 int power;
1272
8fbea019 1273 max = read_brightness_max(asus);
86ac2735 1274 if (max < 0)
8fbea019
CC		 1275 return max;
1276
1277 power = read_backlight_power(asus);
1278
b7187265
CC		 1279 if (power == -ENODEV)
1280 power = FB_BLANK_UNBLANK;
8fbea019
CC		 1281 else if (power < 0)
1282 return power;
3d7b1655
YW		 1283
1284 memset(&props, 0, sizeof(struct backlight_properties));
60cfa098 1285 props.type = BACKLIGHT_PLATFORM;
b7187265 1286 props.max_brightness = max;
e12e6d94
CC		 1287 bd = backlight_device_register(asus->driver->name,
1288 &asus->platform_device->dev, asus,
1289 &asus_wmi_bl_ops, &props);
3d7b1655
YW		 1290 if (IS_ERR(bd)) {
1291 pr_err("Could not register backlight device\n");
1292 return PTR_ERR(bd);
1293 }
1294
e12e6d94 1295 asus->backlight_device = bd;
3d7b1655 1296
6e0044be
AK		 1297 if (asus->driver->quirks->store_backlight_power)
1298 asus->driver->panel_power = power;
1299
3d7b1655 1300 bd->props.brightness = read_brightness(bd);
b7187265 1301 bd->props.power = power;
3d7b1655
YW		 1302 backlight_update_status(bd);
1303
c87992d1
AK		 1304 asus->driver->brightness = bd->props.brightness;
1305
3d7b1655
YW		 1306 return 0;
1307}
1308
e12e6d94 1309static void asus_wmi_backlight_exit(struct asus_wmi *asus)
3d7b1655 1310{
e12e6d94
CC		 1311 if (asus->backlight_device)
1312 backlight_device_unregister(asus->backlight_device);
3d7b1655 1313
e12e6d94 1314 asus->backlight_device = NULL;
3d7b1655
YW		 1315}
1316
a2a96f0c
AK		 1317static int is_display_toggle(int code)
1318{
1319 /* display toggle keys */
1320 if ((code >= 0x61 && code <= 0x67) ||
1321 (code >= 0x8c && code <= 0x93) ||
1322 (code >= 0xa0 && code <= 0xa7) ||
1323 (code >= 0xd0 && code <= 0xd5))
1324 return 1;
1325
1326 return 0;
1327}
1328
e12e6d94 1329static void asus_wmi_notify(u32 value, void *context)
3d7b1655 1330{
e12e6d94 1331 struct asus_wmi *asus = context;
3d7b1655
YW		 1332 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1333 union acpi_object *obj;
1334 acpi_status status;
1335 int code;
1336 int orig_code;
c4453f6a
SF		 1337 unsigned int key_value = 1;
1338 bool autorelease = 1;
3d7b1655
YW		 1339
1340 status = wmi_get_event_data(value, &response);
1341 if (status != AE_OK) {
1342 pr_err("bad event status 0x%x\n", status);
1343 return;
1344 }
1345
1346 obj = (union acpi_object *)response.pointer;
1347
57ab7dae
CC		 1348 if (!obj || obj->type != ACPI_TYPE_INTEGER)
1349 goto exit;
3d7b1655 1350
57ab7dae
CC		 1351 code = obj->integer.value;
1352 orig_code = code;
3d7b1655 1353
c4453f6a
SF		 1354 if (asus->driver->key_filter) {
1355 asus->driver->key_filter(asus->driver, &code, &key_value,
1356 &autorelease);
1357 if (code == ASUS_WMI_KEY_IGNORE)
1358 goto exit;
1359 }
1360
57ab7dae 1361 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
3ba0302b 1362 code = ASUS_WMI_BRN_UP;
57ab7dae
CC		 1363 else if (code >= NOTIFY_BRNDOWN_MIN &&
1364 code <= NOTIFY_BRNDOWN_MAX)
3ba0302b 1365 code = ASUS_WMI_BRN_DOWN;
3d7b1655 1366
3ba0302b 1367 if (code == ASUS_WMI_BRN_DOWN || code == ASUS_WMI_BRN_UP) {
a2a96f0c 1368 if (!acpi_video_backlight_support()) {
57ab7dae 1369 asus_wmi_backlight_notify(asus, orig_code);
3ba0302b 1370 goto exit;
a2a96f0c 1371 }
a2a96f0c
AK		 1372 }
1373
1374 if (is_display_toggle(code) &&
1375 asus->driver->quirks->no_display_toggle)
1376 goto exit;
1377
1378 if (!sparse_keymap_report_event(asus->inputdev, code,
1379 key_value, autorelease))
57ab7dae 1380 pr_info("Unknown key %x pressed\n", code);
3d7b1655 1381
57ab7dae 1382exit:
3d7b1655
YW		 1383 kfree(obj);
1384}
1385
9e1565bc
CC		 1386/*
1387 * Sys helpers
1388 */
1389static int parse_arg(const char *buf, unsigned long count, int *val)
1390{
1391 if (!count)
1392 return 0;
1393 if (sscanf(buf, "%i", val) != 1)
1394 return -EINVAL;
1395 return count;
1396}
1397
1d070f89
CC		 1398static ssize_t store_sys_wmi(struct asus_wmi *asus, int devid,
1399 const char *buf, size_t count)
9e1565bc 1400{
9e1565bc 1401 u32 retval;
d33da3b6 1402 int rv, err, value;
9e1565bc 1403
1d070f89 1404 value = asus_wmi_get_devstate_simple(asus, devid);
e12e6d94 1405 if (value == -ENODEV) /* Check device presence */
9e1565bc
CC		 1406 return value;
1407
1408 rv = parse_arg(buf, count, &value);
d33da3b6
CC		 1409 err = asus_wmi_set_devstate(devid, value, &retval);
1410
1411 if (err < 0)
1412 return err;
9e1565bc 1413
9e1565bc
CC		 1414 return rv;
1415}
1416
1d070f89 1417static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
9e1565bc 1418{
1d070f89 1419 int value = asus_wmi_get_devstate_simple(asus, devid);
9e1565bc
CC		 1420
1421 if (value < 0)
1422 return value;
1423
1424 return sprintf(buf, "%d\n", value);
1425}
1426
e12e6d94 1427#define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \
9e1565bc
CC		 1428 static ssize_t show_##_name(struct device *dev, \
1429 struct device_attribute *attr, \
1430 char *buf) \
1431 { \
1d070f89
CC		 1432 struct asus_wmi *asus = dev_get_drvdata(dev); \
1433 \
1434 return show_sys_wmi(asus, _cm, buf); \
9e1565bc
CC		 1435 } \
1436 static ssize_t store_##_name(struct device *dev, \
1437 struct device_attribute *attr, \
1438 const char *buf, size_t count) \
1439 { \
1d070f89
CC		 1440 struct asus_wmi *asus = dev_get_drvdata(dev); \
1441 \
1442 return store_sys_wmi(asus, _cm, buf, count); \
9e1565bc
CC		 1443 } \
1444 static struct device_attribute dev_attr_##_name = { \
1445 .attr = { \
1446 .name = __stringify(_name), \
1447 .mode = _mode }, \
1448 .show = show_##_name, \
1449 .store = store_##_name, \
1450 }
1451
e12e6d94
CC		 1452ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD);
1453ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA);
1454ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
c0b91b6d 1455ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume, 0644, ASUS_WMI_DEVID_LID_RESUME);
9e1565bc 1456
67fa38ec
DT		 1457static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr,
1458 const char *buf, size_t count)
7f80d734 1459{
3df5fdad 1460 int value, rv;
7f80d734
CB		 1461
1462 if (!count || sscanf(buf, "%i", &value) != 1)
1463 return -EINVAL;
1464 if (value < 0 || value > 2)
1465 return -EINVAL;
1466
3df5fdad
CC		 1467 rv = asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL);
1468 if (rv < 0)
1469 return rv;
1470
1471 return count;
7f80d734
CB		 1472}
1473
1474static DEVICE_ATTR(cpufv, S_IRUGO | S_IWUSR, NULL, store_cpufv);
1475
4e37b42d
CC		 1476static struct attribute *platform_attributes[] = {
1477 &dev_attr_cpufv.attr,
9e1565bc
CC		 1478 &dev_attr_camera.attr,
1479 &dev_attr_cardr.attr,
4615bb66 1480 &dev_attr_touchpad.attr,
c0b91b6d 1481 &dev_attr_lid_resume.attr,
4e37b42d
CC		 1482 NULL
1483};
1484
587a1f16 1485static umode_t asus_sysfs_is_visible(struct kobject *kobj,
e12e6d94 1486 struct attribute *attr, int idx)
9e1565bc 1487{
1d070f89
CC		 1488 struct device *dev = container_of(kobj, struct device, kobj);
1489 struct platform_device *pdev = to_platform_device(dev);
1490 struct asus_wmi *asus = platform_get_drvdata(pdev);
1491 bool ok = true;
9e1565bc
CC		 1492 int devid = -1;
1493
1494 if (attr == &dev_attr_camera.attr)
e12e6d94 1495 devid = ASUS_WMI_DEVID_CAMERA;
9e1565bc 1496 else if (attr == &dev_attr_cardr.attr)
e12e6d94 1497 devid = ASUS_WMI_DEVID_CARDREADER;
4615bb66 1498 else if (attr == &dev_attr_touchpad.attr)
e12e6d94 1499 devid = ASUS_WMI_DEVID_TOUCHPAD;
c0b91b6d
AK		 1500 else if (attr == &dev_attr_lid_resume.attr)
1501 devid = ASUS_WMI_DEVID_LID_RESUME;
9e1565bc
CC		 1502
1503 if (devid != -1)
1d070f89 1504 ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
9e1565bc 1505
1d070f89 1506 return ok ? attr->mode : 0;
9e1565bc
CC		 1507}
1508
4e37b42d 1509static struct attribute_group platform_attribute_group = {
e12e6d94
CC		 1510 .is_visible = asus_sysfs_is_visible,
1511 .attrs = platform_attributes
4e37b42d
CC		 1512};
1513
e12e6d94 1514static void asus_wmi_sysfs_exit(struct platform_device *device)
7f80d734 1515{
4e37b42d 1516 sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
7f80d734
CB		 1517}
1518
e12e6d94 1519static int asus_wmi_sysfs_init(struct platform_device *device)
7f80d734 1520{
4e37b42d 1521 return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
7f80d734
CB		 1522}
1523
27c136c8
CC		 1524/*
1525 * Platform device
1526 */
39ddf3bf 1527static int asus_wmi_platform_init(struct asus_wmi *asus)
ee027e4a 1528{
46dbca87
CC		 1529 int rv;
1530
1531 /* INIT enable hotkeys on some models */
1532 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv))
0ed60654 1533 pr_info("Initialization: %#x\n", rv);
46dbca87
CC		 1534
1535 /* We don't know yet what to do with this version... */
1536 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) {
0ed60654 1537 pr_info("BIOS WMI version: %d.%d\n", rv >> 16, rv & 0xFF);
46dbca87
CC		 1538 asus->spec = rv;
1539 }
1540
1541 /*
1542 * The SFUN method probably allows the original driver to get the list
1543 * of features supported by a given model. For now, 0x0100 or 0x0800
1544 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
1545 * The significance of others is yet to be found.
1546 */
1547 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) {
0ed60654 1548 pr_info("SFUN value: %#x\n", rv);
46dbca87
CC		 1549 asus->sfun = rv;
1550 }
1551
1d070f89
CC		 1552 /*
1553 * Eee PC and Notebooks seems to have different method_id for DSTS,
1554 * but it may also be related to the BIOS's SPEC.
1555 * Note, on most Eeepc, there is no way to check if a method exist
1556 * or note, while on notebooks, they returns 0xFFFFFFFE on failure,
1557 * but once again, SPEC may probably be used for that kind of things.
1558 */
1559 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS, 0, 0, NULL))
1560 asus->dsts_id = ASUS_WMI_METHODID_DSTS;
63a78bb1 1561 else
1d070f89
CC		 1562 asus->dsts_id = ASUS_WMI_METHODID_DSTS2;
1563
fddbfed5
CC		 1564 /* CWAP allow to define the behavior of the Fn+F2 key,
1565 * this method doesn't seems to be present on Eee PCs */
6a2bcccd 1566 if (asus->driver->quirks->wapf >= 0)
fddbfed5 1567 asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP,
6a2bcccd 1568 asus->driver->quirks->wapf, NULL);
fddbfed5 1569
e12e6d94 1570 return asus_wmi_sysfs_init(asus->platform_device);
27c136c8
CC		 1571}
1572
e12e6d94 1573static void asus_wmi_platform_exit(struct asus_wmi *asus)
27c136c8 1574{
e12e6d94 1575 asus_wmi_sysfs_exit(asus->platform_device);
27c136c8
CC		 1576}
1577
8c1b2d83
CC		 1578/*
1579 * debugfs
1580 */
e12e6d94
CC		 1581struct asus_wmi_debugfs_node {
1582 struct asus_wmi *asus;
8c1b2d83 1583 char *name;
e12e6d94 1584 int (*show) (struct seq_file *m, void *data);
8c1b2d83
CC		 1585};
1586
1587static int show_dsts(struct seq_file *m, void *data)
1588{
e12e6d94 1589 struct asus_wmi *asus = m->private;
d33da3b6 1590 int err;
8c1b2d83
CC		 1591 u32 retval = -1;
1592
1d070f89 1593 err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
8c1b2d83 1594
d33da3b6
CC		 1595 if (err < 0)
1596 return err;
8c1b2d83 1597
ef343491 1598 seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval);
8c1b2d83
CC		 1599
1600 return 0;
1601}
1602
1603static int show_devs(struct seq_file *m, void *data)
1604{
e12e6d94 1605 struct asus_wmi *asus = m->private;
d33da3b6 1606 int err;
8c1b2d83
CC		 1607 u32 retval = -1;
1608
d33da3b6
CC		 1609 err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
1610 &retval);
1611
1612 if (err < 0)
1613 return err;
8c1b2d83 1614
ef343491 1615 seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id,
e12e6d94 1616 asus->debug.ctrl_param, retval);
8c1b2d83
CC		 1617
1618 return 0;
1619}
1620
ef343491
CC		 1621static int show_call(struct seq_file *m, void *data)
1622{
1623 struct asus_wmi *asus = m->private;
1624 struct bios_args args = {
1625 .arg0 = asus->debug.dev_id,
1626 .arg1 = asus->debug.ctrl_param,
1627 };
1628 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
1629 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1630 union acpi_object *obj;
1631 acpi_status status;
1632
1633 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
1634 1, asus->debug.method_id,
1635 &input, &output);
1636
1637 if (ACPI_FAILURE(status))
1638 return -EIO;
1639
1640 obj = (union acpi_object *)output.pointer;
1641 if (obj && obj->type == ACPI_TYPE_INTEGER)
1642 seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id,
1643 asus->debug.dev_id, asus->debug.ctrl_param,
1644 (u32) obj->integer.value);
1645 else
1646 seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id,
1647 asus->debug.dev_id, asus->debug.ctrl_param,
a1d60867 1648 obj ? obj->type : -1);
ef343491
CC		 1649
1650 kfree(obj);
1651
1652 return 0;
1653}
1654
e12e6d94
CC		 1655static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = {
1656 {NULL, "devs", show_devs},
1657 {NULL, "dsts", show_dsts},
ef343491 1658 {NULL, "call", show_call},
8c1b2d83
CC		 1659};
1660
e12e6d94 1661static int asus_wmi_debugfs_open(struct inode *inode, struct file *file)
8c1b2d83 1662{
e12e6d94 1663 struct asus_wmi_debugfs_node *node = inode->i_private;
8c1b2d83 1664
e12e6d94 1665 return single_open(file, node->show, node->asus);
8c1b2d83
CC		 1666}
1667
e12e6d94 1668static const struct file_operations asus_wmi_debugfs_io_ops = {
8c1b2d83 1669 .owner = THIS_MODULE,
e12e6d94 1670 .open = asus_wmi_debugfs_open,
8c1b2d83
CC		 1671 .read = seq_read,
1672 .llseek = seq_lseek,
1673 .release = single_release,
1674};
1675
e12e6d94 1676static void asus_wmi_debugfs_exit(struct asus_wmi *asus)
8c1b2d83 1677{
e12e6d94 1678 debugfs_remove_recursive(asus->debug.root);
8c1b2d83
CC		 1679}
1680
e12e6d94 1681static int asus_wmi_debugfs_init(struct asus_wmi *asus)
8c1b2d83
CC		 1682{
1683 struct dentry *dent;
1684 int i;
1685
e12e6d94
CC		 1686 asus->debug.root = debugfs_create_dir(asus->driver->name, NULL);
1687 if (!asus->debug.root) {
0ed60654 1688 pr_err("failed to create debugfs directory\n");
8c1b2d83
CC		 1689 goto error_debugfs;
1690 }
1691
ef343491
CC		 1692 dent = debugfs_create_x32("method_id", S_IRUGO | S_IWUSR,
1693 asus->debug.root, &asus->debug.method_id);
1694 if (!dent)
1695 goto error_debugfs;
1696
e12e6d94
CC		 1697 dent = debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR,
1698 asus->debug.root, &asus->debug.dev_id);
8c1b2d83
CC		 1699 if (!dent)
1700 goto error_debugfs;
1701
e12e6d94
CC		 1702 dent = debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR,
1703 asus->debug.root, &asus->debug.ctrl_param);
8c1b2d83
CC		 1704 if (!dent)
1705 goto error_debugfs;
1706
e12e6d94
CC		 1707 for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) {
1708 struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i];
8c1b2d83 1709
e12e6d94 1710 node->asus = asus;
8c1b2d83 1711 dent = debugfs_create_file(node->name, S_IFREG | S_IRUGO,
e12e6d94
CC		 1712 asus->debug.root, node,
1713 &asus_wmi_debugfs_io_ops);
8c1b2d83
CC		 1714 if (!dent) {
1715 pr_err("failed to create debug file: %s\n", node->name);
1716 goto error_debugfs;
1717 }
1718 }
1719
1720 return 0;
1721
1722error_debugfs:
e12e6d94 1723 asus_wmi_debugfs_exit(asus);
8c1b2d83
CC		 1724 return -ENOMEM;
1725}
1726
27c136c8
CC		 1727/*
1728 * WMI Driver
1729 */
e12e6d94 1730static int asus_wmi_add(struct platform_device *pdev)
afa7c886 1731{
e12e6d94
CC		 1732 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
1733 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
1734 struct asus_wmi *asus;
d8c66f62 1735 const char *chassis_type;
ee027e4a 1736 acpi_status status;
27c136c8 1737 int err;
a50bd128 1738 u32 result;
ee027e4a 1739
e12e6d94
CC		 1740 asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL);
1741 if (!asus)
a04ce290
CC		 1742 return -ENOMEM;
1743
e12e6d94
CC		 1744 asus->driver = wdrv;
1745 asus->platform_device = pdev;
1746 wdrv->platform_device = pdev;
1747 platform_set_drvdata(asus->platform_device, asus);
27c136c8 1748
c87992d1
AK		 1749 if (wdrv->detect_quirks)
1750 wdrv->detect_quirks(asus->driver);
afa7c886 1751
e12e6d94 1752 err = asus_wmi_platform_init(asus);
27c136c8
CC		 1753 if (err)
1754 goto fail_platform;
45f2c693 1755
e12e6d94 1756 err = asus_wmi_input_init(asus);
45f2c693 1757 if (err)
27c136c8 1758 goto fail_input;
3d7b1655 1759
e07babde
CC		 1760 err = asus_wmi_hwmon_init(asus);
1761 if (err)
1762 goto fail_hwmon;
1763
e12e6d94 1764 err = asus_wmi_led_init(asus);
084fca63
CC		 1765 if (err)
1766 goto fail_leds;
1767
e12e6d94 1768 err = asus_wmi_rfkill_init(asus);
ba48fdb9
CC		 1769 if (err)
1770 goto fail_rfkill;
1771
d8c66f62
HG		 1772 /* Some Asus desktop boards export an acpi-video backlight interface,
1773 stop this from showing up */
1774 chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE);
1775 if (chassis_type && !strcmp(chassis_type, "3"))
1776 acpi_video_dmi_promote_vendor();
272c77d5
AK		 1777 if (asus->driver->quirks->wmi_backlight_power)
1778 acpi_video_dmi_promote_vendor();
3d7b1655 1779 if (!acpi_video_backlight_support()) {
272c77d5
AK		 1780 pr_info("Disabling ACPI video driver\n");
1781 acpi_video_unregister();
e12e6d94 1782 err = asus_wmi_backlight_init(asus);
b7187265 1783 if (err && err != -ENODEV)
27c136c8 1784 goto fail_backlight;
3d7b1655
YW		 1785 } else
1786 pr_info("Backlight controlled by ACPI video driver\n");
45f2c693 1787
e12e6d94
CC		 1788 status = wmi_install_notify_handler(asus->driver->event_guid,
1789 asus_wmi_notify, asus);
45f2c693 1790 if (ACPI_FAILURE(status)) {
e12e6d94 1791 pr_err("Unable to register notify handler - %d\n", status);
45f2c693 1792 err = -ENODEV;
27c136c8 1793 goto fail_wmi_handler;
45f2c693
YW		 1794 }
1795
e12e6d94 1796 err = asus_wmi_debugfs_init(asus);
8c1b2d83
CC		 1797 if (err)
1798 goto fail_debugfs;
1799
a50bd128
AK		 1800 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result);
1801 if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT))
1802 asus->driver->wlan_ctrl_by_user = 1;
1803
a04ce290 1804 return 0;
45f2c693 1805
8c1b2d83 1806fail_debugfs:
e12e6d94 1807 wmi_remove_notify_handler(asus->driver->event_guid);
27c136c8 1808fail_wmi_handler:
e12e6d94 1809 asus_wmi_backlight_exit(asus);
27c136c8 1810fail_backlight:
e12e6d94 1811 asus_wmi_rfkill_exit(asus);
ba48fdb9 1812fail_rfkill:
e12e6d94 1813 asus_wmi_led_exit(asus);
084fca63 1814fail_leds:
e07babde 1815fail_hwmon:
e12e6d94 1816 asus_wmi_input_exit(asus);
27c136c8 1817fail_input:
e12e6d94 1818 asus_wmi_platform_exit(asus);
27c136c8 1819fail_platform:
e12e6d94 1820 kfree(asus);
a04ce290 1821 return err;
45f2c693
YW		 1822}
1823
e12e6d94 1824static int asus_wmi_remove(struct platform_device *device)
45f2c693 1825{
e12e6d94
CC		 1826 struct asus_wmi *asus;
1827
1828 asus = platform_get_drvdata(device);
1829 wmi_remove_notify_handler(asus->driver->event_guid);
1830 asus_wmi_backlight_exit(asus);
1831 asus_wmi_input_exit(asus);
1832 asus_wmi_led_exit(asus);
1833 asus_wmi_rfkill_exit(asus);
1834 asus_wmi_debugfs_exit(asus);
1835 asus_wmi_platform_exit(asus);
1836
1837 kfree(asus);
45f2c693
YW		 1838 return 0;
1839}
1840
0773d7f9
CC		 1841/*
1842 * Platform driver - hibernate/resume callbacks
1843 */
e12e6d94 1844static int asus_hotk_thaw(struct device *device)
0773d7f9 1845{
e12e6d94 1846 struct asus_wmi *asus = dev_get_drvdata(device);
0773d7f9 1847
a7ce3f04 1848 if (asus->wlan.rfkill) {
0773d7f9
CC		 1849 bool wlan;
1850
1851 /*
1852 * Work around bios bug - acpi _PTS turns off the wireless led
1853 * during suspend. Normally it restores it on resume, but
1854 * we should kick it ourselves in case hibernation is aborted.
1855 */
1d070f89 1856 wlan = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
e12e6d94 1857 asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL);
0773d7f9
CC		 1858 }
1859
1860 return 0;
1861}
1862
e12e6d94 1863static int asus_hotk_restore(struct device *device)
0773d7f9 1864{
e12e6d94 1865 struct asus_wmi *asus = dev_get_drvdata(device);
0773d7f9
CC		 1866 int bl;
1867
1868 /* Refresh both wlan rfkill state and pci hotplug */
a7ce3f04 1869 if (asus->wlan.rfkill)
e12e6d94 1870 asus_rfkill_hotplug(asus);
0773d7f9 1871
a7ce3f04 1872 if (asus->bluetooth.rfkill) {
1d070f89
CC		 1873 bl = !asus_wmi_get_devstate_simple(asus,
1874 ASUS_WMI_DEVID_BLUETOOTH);
a7ce3f04 1875 rfkill_set_sw_state(asus->bluetooth.rfkill, bl);
2e9e159d 1876 }
a7ce3f04 1877 if (asus->wimax.rfkill) {
1d070f89 1878 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WIMAX);
a7ce3f04 1879 rfkill_set_sw_state(asus->wimax.rfkill, bl);
2e9e159d 1880 }
a7ce3f04 1881 if (asus->wwan3g.rfkill) {
1d070f89 1882 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WWAN3G);
a7ce3f04 1883 rfkill_set_sw_state(asus->wwan3g.rfkill, bl);
0773d7f9 1884 }
43be8bde
CC		 1885 if (asus->gps.rfkill) {
1886 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPS);
1887 rfkill_set_sw_state(asus->gps.rfkill, bl);
1888 }
a912d329
CC		 1889 if (asus->uwb.rfkill) {
1890 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_UWB);
1891 rfkill_set_sw_state(asus->uwb.rfkill, bl);
1892 }
0773d7f9
CC		 1893
1894 return 0;
1895}
1896
e12e6d94
CC		 1897static const struct dev_pm_ops asus_pm_ops = {
1898 .thaw = asus_hotk_thaw,
1899 .restore = asus_hotk_restore,
45f2c693
YW		 1900};
1901
e12e6d94 1902static int asus_wmi_probe(struct platform_device *pdev)
d358cb55 1903{
e12e6d94
CC		 1904 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
1905 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
1906 int ret;
d358cb55 1907
e12e6d94 1908 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
5ad77dcf 1909 pr_warn("Management GUID not found\n");
ee027e4a
YW		 1910 return -ENODEV;
1911 }
1912
e12e6d94 1913 if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) {
5ad77dcf 1914 pr_warn("Event GUID not found\n");
d358cb55
CC		 1915 return -ENODEV;
1916 }
1917
e12e6d94
CC		 1918 if (wdrv->probe) {
1919 ret = wdrv->probe(pdev);
1920 if (ret)
1921 return ret;
1922 }
1923
1924 return asus_wmi_add(pdev);
a04ce290 1925}
45f2c693 1926
e12e6d94 1927static bool used;
ee027e4a 1928
8fe8c25e 1929int __init_or_module asus_wmi_register_driver(struct asus_wmi_driver *driver)
a04ce290 1930{
e12e6d94
CC		 1931 struct platform_driver *platform_driver;
1932 struct platform_device *platform_device;
1933
1934 if (used)
1935 return -EBUSY;
1936
1937 platform_driver = &driver->platform_driver;
1938 platform_driver->remove = asus_wmi_remove;
1939 platform_driver->driver.owner = driver->owner;
1940 platform_driver->driver.name = driver->name;
1941 platform_driver->driver.pm = &asus_pm_ops;
1942
1943 platform_device = platform_create_bundle(platform_driver,
1944 asus_wmi_probe,
a04ce290
CC		 1945 NULL, 0, NULL, 0);
1946 if (IS_ERR(platform_device))
1947 return PTR_ERR(platform_device);
e12e6d94
CC		 1948
1949 used = true;
1950 return 0;
1951}
1952EXPORT_SYMBOL_GPL(asus_wmi_register_driver);
1953
1954void asus_wmi_unregister_driver(struct asus_wmi_driver *driver)
1955{
1956 platform_device_unregister(driver->platform_device);
1957 platform_driver_unregister(&driver->platform_driver);
1958 used = false;
1959}
1960EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver);
1961
1962static int __init asus_wmi_init(void)
1963{
1964 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
0ed60654 1965 pr_info("Asus Management GUID not found\n");
e12e6d94
CC		 1966 return -ENODEV;
1967 }
1968
0ed60654 1969 pr_info("ASUS WMI generic driver loaded\n");
ee027e4a
YW		 1970 return 0;
1971}
1972
e12e6d94 1973static void __exit asus_wmi_exit(void)
ee027e4a 1974{
0ed60654 1975 pr_info("ASUS WMI generic driver unloaded\n");
ee027e4a
YW		 1976}
1977
e12e6d94
CC		 1978module_init(asus_wmi_init);
1979module_exit(asus_wmi_exit);
Linux kernel - Deliverables
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