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x86: asus-laptop: fix invalid point access
[mirror_ubuntu-artful-kernel.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>
ee027e4a
YW		 48#include <acpi/acpi_bus.h>
49#include <acpi/acpi_drivers.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;
e07babde 187 struct device *hwmon_device;
27c136c8 188 struct platform_device *platform_device;
084fca63 189
6cae06e6
AK		 190 struct led_classdev wlan_led;
191 int wlan_led_wk;
084fca63
CC		 192 struct led_classdev tpd_led;
193 int tpd_led_wk;
e9809c0b
CC		 194 struct led_classdev kbd_led;
195 int kbd_led_wk;
084fca63
CC		 196 struct workqueue_struct *led_workqueue;
197 struct work_struct tpd_led_work;
e9809c0b 198 struct work_struct kbd_led_work;
6cae06e6 199 struct work_struct wlan_led_work;
ba48fdb9 200
a7ce3f04
CC		 201 struct asus_rfkill wlan;
202 struct asus_rfkill bluetooth;
203 struct asus_rfkill wimax;
204 struct asus_rfkill wwan3g;
43be8bde 205 struct asus_rfkill gps;
a912d329 206 struct asus_rfkill uwb;
8c1b2d83 207
afa7c886
CC		 208 struct hotplug_slot *hotplug_slot;
209 struct mutex hotplug_lock;
279f8f95
CC		 210 struct mutex wmi_lock;
211 struct workqueue_struct *hotplug_workqueue;
212 struct work_struct hotplug_work;
afa7c886 213
e12e6d94
CC		 214 struct asus_wmi_debug debug;
215
216 struct asus_wmi_driver *driver;
81248889
YW		 217};
218
e12e6d94 219static int asus_wmi_input_init(struct asus_wmi *asus)
ee027e4a
YW		 220{
221 int err;
222
e12e6d94
CC		 223 asus->inputdev = input_allocate_device();
224 if (!asus->inputdev)
ee027e4a
YW		 225 return -ENOMEM;
226
58a9f397
CC		 227 asus->inputdev->name = asus->driver->input_name;
228 asus->inputdev->phys = asus->driver->input_phys;
e12e6d94
CC		 229 asus->inputdev->id.bustype = BUS_HOST;
230 asus->inputdev->dev.parent = &asus->platform_device->dev;
39bbde05 231 set_bit(EV_REP, asus->inputdev->evbit);
ee027e4a 232
e12e6d94 233 err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL);
ee027e4a
YW		 234 if (err)
235 goto err_free_dev;
236
e12e6d94 237 err = input_register_device(asus->inputdev);
ee027e4a
YW		 238 if (err)
239 goto err_free_keymap;
240
241 return 0;
242
243err_free_keymap:
e12e6d94 244 sparse_keymap_free(asus->inputdev);
ee027e4a 245err_free_dev:
e12e6d94 246 input_free_device(asus->inputdev);
ee027e4a
YW		 247 return err;
248}
249
e12e6d94 250static void asus_wmi_input_exit(struct asus_wmi *asus)
81248889 251{
e12e6d94
CC		 252 if (asus->inputdev) {
253 sparse_keymap_free(asus->inputdev);
254 input_unregister_device(asus->inputdev);
81248889
YW		 255 }
256
e12e6d94 257 asus->inputdev = NULL;
81248889
YW		 258}
259
d33da3b6
CC		 260static int asus_wmi_evaluate_method(u32 method_id, u32 arg0, u32 arg1,
261 u32 *retval)
3d7b1655 262{
d33da3b6
CC		 263 struct bios_args args = {
264 .arg0 = arg0,
265 .arg1 = arg1,
266 };
267 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
3d7b1655 268 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
3d7b1655 269 acpi_status status;
d33da3b6 270 union acpi_object *obj;
3d7b1655
YW		 271 u32 tmp;
272
d33da3b6 273 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 1, method_id,
afa7c886 274 &input, &output);
3d7b1655
YW		 275
276 if (ACPI_FAILURE(status))
d33da3b6 277 goto exit;
3d7b1655
YW		 278
279 obj = (union acpi_object *)output.pointer;
280 if (obj && obj->type == ACPI_TYPE_INTEGER)
e12e6d94 281 tmp = (u32) obj->integer.value;
3d7b1655
YW		 282 else
283 tmp = 0;
284
2a3f0064
CC		 285 if (retval)
286 *retval = tmp;
3d7b1655
YW		 287
288 kfree(obj);
289
d33da3b6
CC		 290exit:
291 if (ACPI_FAILURE(status))
292 return -EIO;
293
294 if (tmp == ASUS_WMI_UNSUPPORTED_METHOD)
295 return -ENODEV;
3d7b1655 296
d33da3b6 297 return 0;
3d7b1655
YW		 298}
299
1d070f89 300static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval)
3d7b1655 301{
1d070f89 302 return asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval);
d33da3b6 303}
3d7b1655 304
d33da3b6 305static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
1d070f89 306 u32 *retval)
d33da3b6
CC		 307{
308 return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS, dev_id,
309 ctrl_param, retval);
3d7b1655
YW		 310}
311
5c95638d 312/* Helper for special devices with magic return codes */
1d070f89
CC		 313static int asus_wmi_get_devstate_bits(struct asus_wmi *asus,
314 u32 dev_id, u32 mask)
5c95638d
CC		 315{
316 u32 retval = 0;
d33da3b6 317 int err;
5c95638d 318
1d070f89 319 err = asus_wmi_get_devstate(asus, dev_id, &retval);
5c95638d 320
d33da3b6
CC		 321 if (err < 0)
322 return err;
5c95638d 323
e12e6d94 324 if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT))
5c95638d
CC		 325 return -ENODEV;
326
a75fe0d7
CC		 327 if (mask == ASUS_WMI_DSTS_STATUS_BIT) {
328 if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT)
329 return -ENODEV;
330 }
331
b7187265
CC		 332 return retval & mask;
333}
334
1d070f89 335static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id)
b7187265 336{
1d070f89
CC		 337 return asus_wmi_get_devstate_bits(asus, dev_id,
338 ASUS_WMI_DSTS_STATUS_BIT);
5c95638d
CC		 339}
340
084fca63
CC		 341/*
342 * LEDs
343 */
344/*
345 * These functions actually update the LED's, and are called from a
346 * workqueue. By doing this as separate work rather than when the LED
e12e6d94 347 * subsystem asks, we avoid messing with the Asus ACPI stuff during a
084fca63
CC		 348 * potentially bad time, such as a timer interrupt.
349 */
350static void tpd_led_update(struct work_struct *work)
351{
352 int ctrl_param;
e12e6d94 353 struct asus_wmi *asus;
084fca63 354
e12e6d94 355 asus = container_of(work, struct asus_wmi, tpd_led_work);
084fca63 356
e12e6d94
CC		 357 ctrl_param = asus->tpd_led_wk;
358 asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
084fca63
CC		 359}
360
361static void tpd_led_set(struct led_classdev *led_cdev,
362 enum led_brightness value)
363{
e12e6d94 364 struct asus_wmi *asus;
084fca63 365
e12e6d94 366 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
084fca63 367
e12e6d94
CC		 368 asus->tpd_led_wk = !!value;
369 queue_work(asus->led_workqueue, &asus->tpd_led_work);
084fca63
CC		 370}
371
e12e6d94 372static int read_tpd_led_state(struct asus_wmi *asus)
084fca63 373{
1d070f89 374 return asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_TOUCHPAD_LED);
084fca63
CC		 375}
376
377static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
378{
e12e6d94 379 struct asus_wmi *asus;
084fca63 380
e12e6d94 381 asus = container_of(led_cdev, struct asus_wmi, tpd_led);
084fca63 382
e12e6d94 383 return read_tpd_led_state(asus);
084fca63
CC		 384}
385
e9809c0b 386static void kbd_led_update(struct work_struct *work)
084fca63 387{
e9809c0b
CC		 388 int ctrl_param = 0;
389 struct asus_wmi *asus;
084fca63 390
e9809c0b 391 asus = container_of(work, struct asus_wmi, kbd_led_work);
084fca63 392
e9809c0b
CC		 393 /*
394 * bits 0-2: level
395 * bit 7: light on/off
396 */
397 if (asus->kbd_led_wk > 0)
398 ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F);
084fca63 399
e9809c0b
CC		 400 asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL);
401}
084fca63 402
e9809c0b
CC		 403static int kbd_led_read(struct asus_wmi *asus, int *level, int *env)
404{
405 int retval;
406
407 /*
408 * bits 0-2: level
409 * bit 7: light on/off
410 * bit 8-10: environment (0: dark, 1: normal, 2: light)
411 * bit 17: status unknown
412 */
413 retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT,
414 0xFFFF);
415
af965e97 416 /* Unknown status is considered as off */
e9809c0b 417 if (retval == 0x8000)
af965e97 418 retval = 0;
e9809c0b
CC		 419
420 if (retval >= 0) {
421 if (level)
c09b2237 422 *level = retval & 0x7F;
e9809c0b
CC		 423 if (env)
424 *env = (retval >> 8) & 0x7F;
425 retval = 0;
084fca63
CC		 426 }
427
e9809c0b
CC		 428 return retval;
429}
430
431static void kbd_led_set(struct led_classdev *led_cdev,
432 enum led_brightness value)
433{
434 struct asus_wmi *asus;
435
436 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
437
438 if (value > asus->kbd_led.max_brightness)
439 value = asus->kbd_led.max_brightness;
440 else if (value < 0)
441 value = 0;
442
443 asus->kbd_led_wk = value;
444 queue_work(asus->led_workqueue, &asus->kbd_led_work);
445}
446
447static enum led_brightness kbd_led_get(struct led_classdev *led_cdev)
448{
449 struct asus_wmi *asus;
450 int retval, value;
451
452 asus = container_of(led_cdev, struct asus_wmi, kbd_led);
453
454 retval = kbd_led_read(asus, &value, NULL);
455
456 if (retval < 0)
457 return retval;
458
459 return value;
084fca63
CC		 460}
461
6cae06e6
AK		 462static int wlan_led_unknown_state(struct asus_wmi *asus)
463{
464 u32 result;
465
466 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
467
468 return result & ASUS_WMI_DSTS_UNKNOWN_BIT;
469}
470
471static int wlan_led_presence(struct asus_wmi *asus)
472{
473 u32 result;
474
475 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
476
477 return result & ASUS_WMI_DSTS_PRESENCE_BIT;
478}
479
480static void wlan_led_update(struct work_struct *work)
481{
482 int ctrl_param;
483 struct asus_wmi *asus;
484
485 asus = container_of(work, struct asus_wmi, wlan_led_work);
486
487 ctrl_param = asus->wlan_led_wk;
488 asus_wmi_set_devstate(ASUS_WMI_DEVID_WIRELESS_LED, ctrl_param, NULL);
489}
490
491static void wlan_led_set(struct led_classdev *led_cdev,
492 enum led_brightness value)
493{
494 struct asus_wmi *asus;
495
496 asus = container_of(led_cdev, struct asus_wmi, wlan_led);
497
498 asus->wlan_led_wk = !!value;
499 queue_work(asus->led_workqueue, &asus->wlan_led_work);
500}
501
502static enum led_brightness wlan_led_get(struct led_classdev *led_cdev)
503{
504 struct asus_wmi *asus;
505 u32 result;
506
507 asus = container_of(led_cdev, struct asus_wmi, wlan_led);
508 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
509
510 return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
511}
512
e12e6d94 513static void asus_wmi_led_exit(struct asus_wmi *asus)
084fca63 514{
e9298028
AL		 515 if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
516 led_classdev_unregister(&asus->kbd_led);
517 if (!IS_ERR_OR_NULL(asus->tpd_led.dev))
e12e6d94 518 led_classdev_unregister(&asus->tpd_led);
6cae06e6
AK		 519 if (!IS_ERR_OR_NULL(asus->wlan_led.dev))
520 led_classdev_unregister(&asus->wlan_led);
e12e6d94
CC		 521 if (asus->led_workqueue)
522 destroy_workqueue(asus->led_workqueue);
084fca63
CC		 523}
524
e9809c0b
CC		 525static int asus_wmi_led_init(struct asus_wmi *asus)
526{
527 int rv = 0;
528
529 asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
530 if (!asus->led_workqueue)
531 return -ENOMEM;
532
533 if (read_tpd_led_state(asus) >= 0) {
534 INIT_WORK(&asus->tpd_led_work, tpd_led_update);
535
536 asus->tpd_led.name = "asus::touchpad";
537 asus->tpd_led.brightness_set = tpd_led_set;
538 asus->tpd_led.brightness_get = tpd_led_get;
539 asus->tpd_led.max_brightness = 1;
540
541 rv = led_classdev_register(&asus->platform_device->dev,
542 &asus->tpd_led);
543 if (rv)
544 goto error;
545 }
546
547 if (kbd_led_read(asus, NULL, NULL) >= 0) {
548 INIT_WORK(&asus->kbd_led_work, kbd_led_update);
549
550 asus->kbd_led.name = "asus::kbd_backlight";
551 asus->kbd_led.brightness_set = kbd_led_set;
552 asus->kbd_led.brightness_get = kbd_led_get;
553 asus->kbd_led.max_brightness = 3;
554
555 rv = led_classdev_register(&asus->platform_device->dev,
556 &asus->kbd_led);
6cae06e6
AK		 557 if (rv)
558 goto error;
559 }
560
561 if (wlan_led_presence(asus)) {
562 INIT_WORK(&asus->wlan_led_work, wlan_led_update);
563
564 asus->wlan_led.name = "asus::wlan";
565 asus->wlan_led.brightness_set = wlan_led_set;
566 if (!wlan_led_unknown_state(asus))
567 asus->wlan_led.brightness_get = wlan_led_get;
568 asus->wlan_led.flags = LED_CORE_SUSPENDRESUME;
569 asus->wlan_led.max_brightness = 1;
570 asus->wlan_led.default_trigger = "asus-wlan";
571
572 rv = led_classdev_register(&asus->platform_device->dev,
573 &asus->wlan_led);
e9809c0b
CC		 574 }
575
576error:
577 if (rv)
578 asus_wmi_led_exit(asus);
579
580 return rv;
581}
582
583
afa7c886
CC		 584/*
585 * PCI hotplug (for wlan rfkill)
586 */
e12e6d94 587static bool asus_wlan_rfkill_blocked(struct asus_wmi *asus)
afa7c886 588{
1d070f89 589 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
afa7c886 590
5c95638d 591 if (result < 0)
afa7c886 592 return false;
5c95638d 593 return !result;
afa7c886
CC		 594}
595
e12e6d94 596static void asus_rfkill_hotplug(struct asus_wmi *asus)
afa7c886
CC		 597{
598 struct pci_dev *dev;
599 struct pci_bus *bus;
279f8f95 600 bool blocked;
afa7c886
CC		 601 bool absent;
602 u32 l;
603
e12e6d94
CC		 604 mutex_lock(&asus->wmi_lock);
605 blocked = asus_wlan_rfkill_blocked(asus);
606 mutex_unlock(&asus->wmi_lock);
afa7c886 607
e12e6d94 608 mutex_lock(&asus->hotplug_lock);
afa7c886 609
a7ce3f04
CC		 610 if (asus->wlan.rfkill)
611 rfkill_set_sw_state(asus->wlan.rfkill, blocked);
279f8f95 612
e12e6d94 613 if (asus->hotplug_slot) {
afa7c886
CC		 614 bus = pci_find_bus(0, 1);
615 if (!bus) {
5ad77dcf 616 pr_warn("Unable to find PCI bus 1?\n");
afa7c886
CC		 617 goto out_unlock;
618 }
619
620 if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
621 pr_err("Unable to read PCI config space?\n");
622 goto out_unlock;
623 }
624 absent = (l == 0xffffffff);
625
626 if (blocked != absent) {
5ad77dcf
JP		 627 pr_warn("BIOS says wireless lan is %s, "
628 "but the pci device is %s\n",
629 blocked ? "blocked" : "unblocked",
630 absent ? "absent" : "present");
631 pr_warn("skipped wireless hotplug as probably "
632 "inappropriate for this model\n");
afa7c886
CC		 633 goto out_unlock;
634 }
635
636 if (!blocked) {
637 dev = pci_get_slot(bus, 0);
638 if (dev) {
639 /* Device already present */
640 pci_dev_put(dev);
641 goto out_unlock;
642 }
643 dev = pci_scan_single_device(bus, 0);
644 if (dev) {
645 pci_bus_assign_resources(bus);
646 if (pci_bus_add_device(dev))
647 pr_err("Unable to hotplug wifi\n");
648 }
649 } else {
650 dev = pci_get_slot(bus, 0);
651 if (dev) {
210647af 652 pci_stop_and_remove_bus_device(dev);
afa7c886
CC		 653 pci_dev_put(dev);
654 }
655 }
656 }
657
658out_unlock:
e12e6d94 659 mutex_unlock(&asus->hotplug_lock);
afa7c886
CC		 660}
661
e12e6d94 662static void asus_rfkill_notify(acpi_handle handle, u32 event, void *data)
afa7c886 663{
e12e6d94 664 struct asus_wmi *asus = data;
afa7c886
CC		 665
666 if (event != ACPI_NOTIFY_BUS_CHECK)
667 return;
668
279f8f95 669 /*
e12e6d94 670 * We can't call directly asus_rfkill_hotplug because most
279f8f95
CC		 671 * of the time WMBC is still being executed and not reetrant.
672 * There is currently no way to tell ACPICA that we want this
e12e6d94 673 * method to be serialized, we schedule a asus_rfkill_hotplug
279f8f95
CC		 674 * call later, in a safer context.
675 */
e12e6d94 676 queue_work(asus->hotplug_workqueue, &asus->hotplug_work);
afa7c886
CC		 677}
678
e12e6d94 679static int asus_register_rfkill_notifier(struct asus_wmi *asus, char *node)
afa7c886
CC		 680{
681 acpi_status status;
682 acpi_handle handle;
683
684 status = acpi_get_handle(NULL, node, &handle);
685
686 if (ACPI_SUCCESS(status)) {
687 status = acpi_install_notify_handler(handle,
688 ACPI_SYSTEM_NOTIFY,
e12e6d94 689 asus_rfkill_notify, asus);
afa7c886 690 if (ACPI_FAILURE(status))
5ad77dcf 691 pr_warn("Failed to register notify on %s\n", node);
afa7c886
CC		 692 } else
693 return -ENODEV;
694
695 return 0;
696}
697
e12e6d94 698static void asus_unregister_rfkill_notifier(struct asus_wmi *asus, char *node)
afa7c886
CC		 699{
700 acpi_status status = AE_OK;
701 acpi_handle handle;
702
703 status = acpi_get_handle(NULL, node, &handle);
704
705 if (ACPI_SUCCESS(status)) {
706 status = acpi_remove_notify_handler(handle,
e12e6d94
CC		 707 ACPI_SYSTEM_NOTIFY,
708 asus_rfkill_notify);
afa7c886
CC		 709 if (ACPI_FAILURE(status))
710 pr_err("Error removing rfkill notify handler %s\n",
e12e6d94 711 node);
afa7c886
CC		 712 }
713}
714
e12e6d94
CC		 715static int asus_get_adapter_status(struct hotplug_slot *hotplug_slot,
716 u8 *value)
afa7c886 717{
1d070f89
CC		 718 struct asus_wmi *asus = hotplug_slot->private;
719 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
afa7c886 720
5c95638d
CC		 721 if (result < 0)
722 return result;
afa7c886 723
5c95638d 724 *value = !!result;
afa7c886
CC		 725 return 0;
726}
727
e12e6d94 728static void asus_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot)
afa7c886
CC		 729{
730 kfree(hotplug_slot->info);
731 kfree(hotplug_slot);
732}
733
e12e6d94 734static struct hotplug_slot_ops asus_hotplug_slot_ops = {
afa7c886 735 .owner = THIS_MODULE,
e12e6d94
CC		 736 .get_adapter_status = asus_get_adapter_status,
737 .get_power_status = asus_get_adapter_status,
afa7c886
CC		 738};
739
e12e6d94 740static void asus_hotplug_work(struct work_struct *work)
279f8f95 741{
e12e6d94 742 struct asus_wmi *asus;
279f8f95 743
e12e6d94
CC		 744 asus = container_of(work, struct asus_wmi, hotplug_work);
745 asus_rfkill_hotplug(asus);
279f8f95
CC		 746}
747
e12e6d94 748static int asus_setup_pci_hotplug(struct asus_wmi *asus)
afa7c886
CC		 749{
750 int ret = -ENOMEM;
751 struct pci_bus *bus = pci_find_bus(0, 1);
752
753 if (!bus) {
754 pr_err("Unable to find wifi PCI bus\n");
755 return -ENODEV;
756 }
757
e12e6d94
CC		 758 asus->hotplug_workqueue =
759 create_singlethread_workqueue("hotplug_workqueue");
760 if (!asus->hotplug_workqueue)
279f8f95
CC		 761 goto error_workqueue;
762
e12e6d94 763 INIT_WORK(&asus->hotplug_work, asus_hotplug_work);
279f8f95 764
e12e6d94
CC		 765 asus->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
766 if (!asus->hotplug_slot)
afa7c886
CC		 767 goto error_slot;
768
e12e6d94
CC		 769 asus->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info),
770 GFP_KERNEL);
771 if (!asus->hotplug_slot->info)
afa7c886
CC		 772 goto error_info;
773
e12e6d94
CC		 774 asus->hotplug_slot->private = asus;
775 asus->hotplug_slot->release = &asus_cleanup_pci_hotplug;
776 asus->hotplug_slot->ops = &asus_hotplug_slot_ops;
777 asus_get_adapter_status(asus->hotplug_slot,
778 &asus->hotplug_slot->info->adapter_status);
afa7c886 779
e12e6d94 780 ret = pci_hp_register(asus->hotplug_slot, bus, 0, "asus-wifi");
afa7c886
CC		 781 if (ret) {
782 pr_err("Unable to register hotplug slot - %d\n", ret);
783 goto error_register;
784 }
785
786 return 0;
787
788error_register:
e12e6d94 789 kfree(asus->hotplug_slot->info);
afa7c886 790error_info:
e12e6d94
CC		 791 kfree(asus->hotplug_slot);
792 asus->hotplug_slot = NULL;
afa7c886 793error_slot:
e12e6d94 794 destroy_workqueue(asus->hotplug_workqueue);
279f8f95 795error_workqueue:
afa7c886
CC		 796 return ret;
797}
798
ba48fdb9
CC		 799/*
800 * Rfkill devices
801 */
e12e6d94 802static int asus_rfkill_set(void *data, bool blocked)
ba48fdb9 803{
a7ce3f04 804 struct asus_rfkill *priv = data;
ba48fdb9 805 u32 ctrl_param = !blocked;
a50bd128 806 u32 dev_id = priv->dev_id;
ba48fdb9 807
a50bd128
AK		 808 /*
809 * If the user bit is set, BIOS can't set and record the wlan status,
810 * it will report the value read from id ASUS_WMI_DEVID_WLAN_LED
811 * while we query the wlan status through WMI(ASUS_WMI_DEVID_WLAN).
812 * So, we have to record wlan status in id ASUS_WMI_DEVID_WLAN_LED
813 * while setting the wlan status through WMI.
814 * This is also the behavior that windows app will do.
815 */
816 if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
817 priv->asus->driver->wlan_ctrl_by_user)
818 dev_id = ASUS_WMI_DEVID_WLAN_LED;
819
820 return asus_wmi_set_devstate(dev_id, ctrl_param, NULL);
ba48fdb9
CC		 821}
822
e12e6d94 823static void asus_rfkill_query(struct rfkill *rfkill, void *data)
ba48fdb9 824{
a7ce3f04 825 struct asus_rfkill *priv = data;
5c95638d 826 int result;
ba48fdb9 827
1d070f89 828 result = asus_wmi_get_devstate_simple(priv->asus, priv->dev_id);
ba48fdb9 829
5c95638d 830 if (result < 0)
e12e6d94 831 return;
ba48fdb9 832
a7ce3f04 833 rfkill_set_sw_state(priv->rfkill, !result);
ba48fdb9
CC		 834}
835
e12e6d94 836static int asus_rfkill_wlan_set(void *data, bool blocked)
279f8f95 837{
a7ce3f04
CC		 838 struct asus_rfkill *priv = data;
839 struct asus_wmi *asus = priv->asus;
279f8f95
CC		 840 int ret;
841
842 /*
843 * This handler is enabled only if hotplug is enabled.
e12e6d94 844 * In this case, the asus_wmi_set_devstate() will
279f8f95
CC		 845 * trigger a wmi notification and we need to wait
846 * this call to finish before being able to call
847 * any wmi method
848 */
e12e6d94 849 mutex_lock(&asus->wmi_lock);
a7ce3f04 850 ret = asus_rfkill_set(data, blocked);
e12e6d94 851 mutex_unlock(&asus->wmi_lock);
279f8f95
CC		 852 return ret;
853}
854
e12e6d94
CC		 855static const struct rfkill_ops asus_rfkill_wlan_ops = {
856 .set_block = asus_rfkill_wlan_set,
a7ce3f04 857 .query = asus_rfkill_query,
279f8f95
CC		 858};
859
e12e6d94
CC		 860static const struct rfkill_ops asus_rfkill_ops = {
861 .set_block = asus_rfkill_set,
862 .query = asus_rfkill_query,
ba48fdb9
CC		 863};
864
e12e6d94 865static int asus_new_rfkill(struct asus_wmi *asus,
a7ce3f04 866 struct asus_rfkill *arfkill,
e12e6d94 867 const char *name, enum rfkill_type type, int dev_id)
ba48fdb9 868{
1d070f89 869 int result = asus_wmi_get_devstate_simple(asus, dev_id);
a7ce3f04 870 struct rfkill **rfkill = &arfkill->rfkill;
ba48fdb9 871
5c95638d
CC		 872 if (result < 0)
873 return result;
ba48fdb9 874
a7ce3f04
CC		 875 arfkill->dev_id = dev_id;
876 arfkill->asus = asus;
877
c87992d1
AK		 878 if (dev_id == ASUS_WMI_DEVID_WLAN &&
879 asus->driver->quirks->hotplug_wireless)
e12e6d94 880 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
a7ce3f04 881 &asus_rfkill_wlan_ops, arfkill);
279f8f95 882 else
e12e6d94 883 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
a7ce3f04 884 &asus_rfkill_ops, arfkill);
ba48fdb9
CC		 885
886 if (!*rfkill)
887 return -EINVAL;
888
6cae06e6
AK		 889 if (dev_id == ASUS_WMI_DEVID_WLAN)
890 rfkill_set_led_trigger_name(*rfkill, "asus-wlan");
891
5c95638d 892 rfkill_init_sw_state(*rfkill, !result);
ba48fdb9
CC		 893 result = rfkill_register(*rfkill);
894 if (result) {
895 rfkill_destroy(*rfkill);
896 *rfkill = NULL;
897 return result;
898 }
899 return 0;
900}
901
e12e6d94 902static void asus_wmi_rfkill_exit(struct asus_wmi *asus)
ba48fdb9 903{
e12e6d94
CC		 904 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
905 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
906 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
a7ce3f04
CC		 907 if (asus->wlan.rfkill) {
908 rfkill_unregister(asus->wlan.rfkill);
909 rfkill_destroy(asus->wlan.rfkill);
910 asus->wlan.rfkill = NULL;
ba48fdb9 911 }
afa7c886
CC		 912 /*
913 * Refresh pci hotplug in case the rfkill state was changed after
e12e6d94 914 * asus_unregister_rfkill_notifier()
afa7c886 915 */
e12e6d94
CC		 916 asus_rfkill_hotplug(asus);
917 if (asus->hotplug_slot)
918 pci_hp_deregister(asus->hotplug_slot);
919 if (asus->hotplug_workqueue)
920 destroy_workqueue(asus->hotplug_workqueue);
921
a7ce3f04
CC		 922 if (asus->bluetooth.rfkill) {
923 rfkill_unregister(asus->bluetooth.rfkill);
924 rfkill_destroy(asus->bluetooth.rfkill);
925 asus->bluetooth.rfkill = NULL;
ba48fdb9 926 }
a7ce3f04
CC		 927 if (asus->wimax.rfkill) {
928 rfkill_unregister(asus->wimax.rfkill);
929 rfkill_destroy(asus->wimax.rfkill);
930 asus->wimax.rfkill = NULL;
2e9e159d 931 }
a7ce3f04
CC		 932 if (asus->wwan3g.rfkill) {
933 rfkill_unregister(asus->wwan3g.rfkill);
934 rfkill_destroy(asus->wwan3g.rfkill);
935 asus->wwan3g.rfkill = NULL;
ba48fdb9 936 }
43be8bde
CC		 937 if (asus->gps.rfkill) {
938 rfkill_unregister(asus->gps.rfkill);
939 rfkill_destroy(asus->gps.rfkill);
940 asus->gps.rfkill = NULL;
941 }
a912d329
CC		 942 if (asus->uwb.rfkill) {
943 rfkill_unregister(asus->uwb.rfkill);
944 rfkill_destroy(asus->uwb.rfkill);
945 asus->uwb.rfkill = NULL;
946 }
ba48fdb9
CC		 947}
948
e12e6d94 949static int asus_wmi_rfkill_init(struct asus_wmi *asus)
ba48fdb9
CC		 950{
951 int result = 0;
952
e12e6d94
CC		 953 mutex_init(&asus->hotplug_lock);
954 mutex_init(&asus->wmi_lock);
afa7c886 955
a7ce3f04
CC		 956 result = asus_new_rfkill(asus, &asus->wlan, "asus-wlan",
957 RFKILL_TYPE_WLAN, ASUS_WMI_DEVID_WLAN);
ba48fdb9
CC		 958
959 if (result && result != -ENODEV)
960 goto exit;
961
a7ce3f04 962 result = asus_new_rfkill(asus, &asus->bluetooth,
e12e6d94
CC		 963 "asus-bluetooth", RFKILL_TYPE_BLUETOOTH,
964 ASUS_WMI_DEVID_BLUETOOTH);
ba48fdb9
CC		 965
966 if (result && result != -ENODEV)
967 goto exit;
968
a7ce3f04
CC		 969 result = asus_new_rfkill(asus, &asus->wimax, "asus-wimax",
970 RFKILL_TYPE_WIMAX, ASUS_WMI_DEVID_WIMAX);
2e9e159d
CC		 971
972 if (result && result != -ENODEV)
973 goto exit;
974
a7ce3f04
CC		 975 result = asus_new_rfkill(asus, &asus->wwan3g, "asus-wwan3g",
976 RFKILL_TYPE_WWAN, ASUS_WMI_DEVID_WWAN3G);
ba48fdb9
CC		 977
978 if (result && result != -ENODEV)
979 goto exit;
980
43be8bde
CC		 981 result = asus_new_rfkill(asus, &asus->gps, "asus-gps",
982 RFKILL_TYPE_GPS, ASUS_WMI_DEVID_GPS);
983
984 if (result && result != -ENODEV)
985 goto exit;
986
a912d329
CC		 987 result = asus_new_rfkill(asus, &asus->uwb, "asus-uwb",
988 RFKILL_TYPE_UWB, ASUS_WMI_DEVID_UWB);
989
990 if (result && result != -ENODEV)
991 goto exit;
992
c87992d1 993 if (!asus->driver->quirks->hotplug_wireless)
c14d4b8e
CC		 994 goto exit;
995
e12e6d94 996 result = asus_setup_pci_hotplug(asus);
afa7c886
CC		 997 /*
998 * If we get -EBUSY then something else is handling the PCI hotplug -
999 * don't fail in this case
1000 */
1001 if (result == -EBUSY)
1002 result = 0;
1003
e12e6d94
CC		 1004 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
1005 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
1006 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
afa7c886
CC		 1007 /*
1008 * Refresh pci hotplug in case the rfkill state was changed during
1009 * setup.
1010 */
e12e6d94 1011 asus_rfkill_hotplug(asus);
afa7c886 1012
ba48fdb9
CC		 1013exit:
1014 if (result && result != -ENODEV)
e12e6d94 1015 asus_wmi_rfkill_exit(asus);
ba48fdb9
CC		 1016
1017 if (result == -ENODEV)
1018 result = 0;
1019
1020 return result;
1021}
1022
e07babde
CC		 1023/*
1024 * Hwmon device
1025 */
1026static ssize_t asus_hwmon_pwm1(struct device *dev,
49979d09
CC		 1027 struct device_attribute *attr,
1028 char *buf)
e07babde
CC		 1029{
1030 struct asus_wmi *asus = dev_get_drvdata(dev);
1031 u32 value;
1032 int err;
1033
1034 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
1035
1036 if (err < 0)
1037 return err;
1038
49979d09 1039 value &= 0xFF;
e07babde
CC		 1040
1041 if (value == 1) /* Low Speed */
1042 value = 85;
1043 else if (value == 2)
1044 value = 170;
1045 else if (value == 3)
1046 value = 255;
1047 else if (value != 0) {
1048 pr_err("Unknown fan speed %#x", value);
1049 value = -1;
1050 }
1051
1052 return sprintf(buf, "%d\n", value);
1053}
1054
6118b8ad
CC		 1055static ssize_t asus_hwmon_temp1(struct device *dev,
1056 struct device_attribute *attr,
1057 char *buf)
1058{
1059 struct asus_wmi *asus = dev_get_drvdata(dev);
1060 u32 value;
1061 int err;
1062
1063 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_THERMAL_CTRL, &value);
1064
1065 if (err < 0)
1066 return err;
1067
1068 value = KELVIN_TO_CELSIUS((value & 0xFFFF)) * 1000;
1069
1070 return sprintf(buf, "%d\n", value);
1071}
1072
e07babde 1073static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO, asus_hwmon_pwm1, NULL, 0);
6118b8ad 1074static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, asus_hwmon_temp1, NULL, 0);
e07babde
CC		 1075
1076static ssize_t
1077show_name(struct device *dev, struct device_attribute *attr, char *buf)
1078{
1079 return sprintf(buf, "asus\n");
1080}
1081static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0);
1082
1083static struct attribute *hwmon_attributes[] = {
1084 &sensor_dev_attr_pwm1.dev_attr.attr,
6118b8ad 1085 &sensor_dev_attr_temp1_input.dev_attr.attr,
e07babde
CC		 1086 &sensor_dev_attr_name.dev_attr.attr,
1087 NULL
1088};
1089
587a1f16 1090static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
e02431d6 1091 struct attribute *attr, int idx)
e07babde
CC		 1092{
1093 struct device *dev = container_of(kobj, struct device, kobj);
1094 struct platform_device *pdev = to_platform_device(dev->parent);
1095 struct asus_wmi *asus = platform_get_drvdata(pdev);
1096 bool ok = true;
1097 int dev_id = -1;
1098 u32 value = ASUS_WMI_UNSUPPORTED_METHOD;
1099
1100 if (attr == &sensor_dev_attr_pwm1.dev_attr.attr)
1101 dev_id = ASUS_WMI_DEVID_FAN_CTRL;
e02431d6
CC		 1102 else if (attr == &sensor_dev_attr_temp1_input.dev_attr.attr)
1103 dev_id = ASUS_WMI_DEVID_THERMAL_CTRL;
e07babde
CC		 1104
1105 if (dev_id != -1) {
1106 int err = asus_wmi_get_devstate(asus, dev_id, &value);
1107
1108 if (err < 0)
e772aed3 1109 return 0; /* can't return negative here */
e07babde
CC		 1110 }
1111
1112 if (dev_id == ASUS_WMI_DEVID_FAN_CTRL) {
1113 /*
1114 * We need to find a better way, probably using sfun,
1115 * bits or spec ...
1116 * Currently we disable it if:
1117 * - ASUS_WMI_UNSUPPORTED_METHOD is returned
1118 * - reverved bits are non-zero
1119 * - sfun and presence bit are not set
1120 */
49979d09 1121 if (value == ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000
e07babde
CC		 1122 || (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT)))
1123 ok = false;
e02431d6
CC		 1124 } else if (dev_id == ASUS_WMI_DEVID_THERMAL_CTRL) {
1125 /* If value is zero, something is clearly wrong */
1126 if (value == 0)
1127 ok = false;
e07babde
CC		 1128 }
1129
1130 return ok ? attr->mode : 0;
1131}
1132
1133static struct attribute_group hwmon_attribute_group = {
1134 .is_visible = asus_hwmon_sysfs_is_visible,
1135 .attrs = hwmon_attributes
1136};
1137
1138static void asus_wmi_hwmon_exit(struct asus_wmi *asus)
1139{
1140 struct device *hwmon;
1141
1142 hwmon = asus->hwmon_device;
1143 if (!hwmon)
1144 return;
1145 sysfs_remove_group(&hwmon->kobj, &hwmon_attribute_group);
1146 hwmon_device_unregister(hwmon);
1147 asus->hwmon_device = NULL;
1148}
1149
1150static int asus_wmi_hwmon_init(struct asus_wmi *asus)
1151{
1152 struct device *hwmon;
1153 int result;
1154
1155 hwmon = hwmon_device_register(&asus->platform_device->dev);
1156 if (IS_ERR(hwmon)) {
1157 pr_err("Could not register asus hwmon device\n");
1158 return PTR_ERR(hwmon);
1159 }
49979d09 1160 dev_set_drvdata(hwmon, asus);
e07babde
CC		 1161 asus->hwmon_device = hwmon;
1162 result = sysfs_create_group(&hwmon->kobj, &hwmon_attribute_group);
1163 if (result)
1164 asus_wmi_hwmon_exit(asus);
1165 return result;
1166}
1167
084fca63
CC		 1168/*
1169 * Backlight
1170 */
1d070f89 1171static int read_backlight_power(struct asus_wmi *asus)
b7187265 1172{
6e0044be
AK		 1173 int ret;
1174 if (asus->driver->quirks->store_backlight_power)
1175 ret = !asus->driver->panel_power;
1176 else
1177 ret = asus_wmi_get_devstate_simple(asus,
1178 ASUS_WMI_DEVID_BACKLIGHT);
b7187265
CC		 1179
1180 if (ret < 0)
1181 return ret;
1182
1183 return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
1184}
1185
8fbea019 1186static int read_brightness_max(struct asus_wmi *asus)
3d7b1655 1187{
dfed65d5 1188 u32 retval;
d33da3b6 1189 int err;
3d7b1655 1190
1d070f89 1191 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
3d7b1655 1192
8fbea019
CC		 1193 if (err < 0)
1194 return err;
1195
1196 retval = retval & ASUS_WMI_DSTS_MAX_BRIGTH_MASK;
1197 retval >>= 8;
1198
1199 if (!retval)
1200 return -ENODEV;
1201
1202 return retval;
1203}
1204
1205static int read_brightness(struct backlight_device *bd)
1206{
1207 struct asus_wmi *asus = bl_get_data(bd);
0986f25f
DC		 1208 u32 retval;
1209 int err;
8fbea019
CC		 1210
1211 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
1212
d33da3b6
CC		 1213 if (err < 0)
1214 return err;
1215
1216 return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
3d7b1655
YW		 1217}
1218
c87992d1 1219static u32 get_scalar_command(struct backlight_device *bd)
3d7b1655 1220{
1d070f89 1221 struct asus_wmi *asus = bl_get_data(bd);
c87992d1 1222 u32 ctrl_param = 0;
3d7b1655 1223
c87992d1
AK		 1224 if ((asus->driver->brightness < bd->props.brightness) ||
1225 bd->props.brightness == bd->props.max_brightness)
1226 ctrl_param = 0x00008001;
1227 else if ((asus->driver->brightness > bd->props.brightness) ||
1228 bd->props.brightness == 0)
1229 ctrl_param = 0x00008000;
3d7b1655 1230
c87992d1 1231 asus->driver->brightness = bd->props.brightness;
3d7b1655 1232
c87992d1
AK		 1233 return ctrl_param;
1234}
1235
3d7b1655
YW		 1236static int update_bl_status(struct backlight_device *bd)
1237{
1d070f89 1238 struct asus_wmi *asus = bl_get_data(bd);
dfed65d5 1239 u32 ctrl_param;
6e0044be 1240 int power, err = 0;
b7187265 1241
1d070f89 1242 power = read_backlight_power(asus);
b7187265
CC		 1243 if (power != -ENODEV && bd->props.power != power) {
1244 ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK);
d33da3b6
CC		 1245 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT,
1246 ctrl_param, NULL);
6e0044be
AK		 1247 if (asus->driver->quirks->store_backlight_power)
1248 asus->driver->panel_power = bd->props.power;
6e0044be 1249
ade28abd
CC		 1250 /* When using scalar brightness, updating the brightness
1251 * will mess with the backlight power */
1252 if (asus->driver->quirks->scalar_panel_brightness)
1253 return err;
b7187265 1254 }
ade28abd
CC		 1255
1256 if (asus->driver->quirks->scalar_panel_brightness)
1257 ctrl_param = get_scalar_command(bd);
1258 else
1259 ctrl_param = bd->props.brightness;
1260
1261 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS,
1262 ctrl_param, NULL);
1263
8fbea019 1264 return err;
3d7b1655
YW		 1265}
1266
e12e6d94 1267static const struct backlight_ops asus_wmi_bl_ops = {
3d7b1655
YW		 1268 .get_brightness = read_brightness,
1269 .update_status = update_bl_status,
1270};
1271
e12e6d94 1272static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code)
3d7b1655 1273{
e12e6d94 1274 struct backlight_device *bd = asus->backlight_device;
3d7b1655 1275 int old = bd->props.brightness;
b7670ed6 1276 int new = old;
3d7b1655
YW		 1277
1278 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
1279 new = code - NOTIFY_BRNUP_MIN + 1;
1280 else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
1281 new = code - NOTIFY_BRNDOWN_MIN;
1282
1283 bd->props.brightness = new;
1284 backlight_update_status(bd);
1285 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
1286
1287 return old;
1288}
1289
e12e6d94 1290static int asus_wmi_backlight_init(struct asus_wmi *asus)
3d7b1655
YW		 1291{
1292 struct backlight_device *bd;
1293 struct backlight_properties props;
b7187265
CC		 1294 int max;
1295 int power;
1296
8fbea019 1297 max = read_brightness_max(asus);
b7187265 1298
b7187265
CC		 1299 if (max == -ENODEV)
1300 max = 0;
8fbea019
CC		 1301 else if (max < 0)
1302 return max;
1303
1304 power = read_backlight_power(asus);
1305
b7187265
CC		 1306 if (power == -ENODEV)
1307 power = FB_BLANK_UNBLANK;
8fbea019
CC		 1308 else if (power < 0)
1309 return power;
3d7b1655
YW		 1310
1311 memset(&props, 0, sizeof(struct backlight_properties));
60cfa098 1312 props.type = BACKLIGHT_PLATFORM;
b7187265 1313 props.max_brightness = max;
e12e6d94
CC		 1314 bd = backlight_device_register(asus->driver->name,
1315 &asus->platform_device->dev, asus,
1316 &asus_wmi_bl_ops, &props);
3d7b1655
YW		 1317 if (IS_ERR(bd)) {
1318 pr_err("Could not register backlight device\n");
1319 return PTR_ERR(bd);
1320 }
1321
e12e6d94 1322 asus->backlight_device = bd;
3d7b1655 1323
6e0044be
AK		 1324 if (asus->driver->quirks->store_backlight_power)
1325 asus->driver->panel_power = power;
1326
3d7b1655 1327 bd->props.brightness = read_brightness(bd);
b7187265 1328 bd->props.power = power;
3d7b1655
YW		 1329 backlight_update_status(bd);
1330
c87992d1
AK		 1331 asus->driver->brightness = bd->props.brightness;
1332
3d7b1655
YW		 1333 return 0;
1334}
1335
e12e6d94 1336static void asus_wmi_backlight_exit(struct asus_wmi *asus)
3d7b1655 1337{
e12e6d94
CC		 1338 if (asus->backlight_device)
1339 backlight_device_unregister(asus->backlight_device);
3d7b1655 1340
e12e6d94 1341 asus->backlight_device = NULL;
3d7b1655
YW		 1342}
1343
a2a96f0c
AK		 1344static int is_display_toggle(int code)
1345{
1346 /* display toggle keys */
1347 if ((code >= 0x61 && code <= 0x67) ||
1348 (code >= 0x8c && code <= 0x93) ||
1349 (code >= 0xa0 && code <= 0xa7) ||
1350 (code >= 0xd0 && code <= 0xd5))
1351 return 1;
1352
1353 return 0;
1354}
1355
e12e6d94 1356static void asus_wmi_notify(u32 value, void *context)
3d7b1655 1357{
e12e6d94 1358 struct asus_wmi *asus = context;
3d7b1655
YW		 1359 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1360 union acpi_object *obj;
1361 acpi_status status;
1362 int code;
1363 int orig_code;
c4453f6a
SF		 1364 unsigned int key_value = 1;
1365 bool autorelease = 1;
3d7b1655
YW		 1366
1367 status = wmi_get_event_data(value, &response);
1368 if (status != AE_OK) {
1369 pr_err("bad event status 0x%x\n", status);
1370 return;
1371 }
1372
1373 obj = (union acpi_object *)response.pointer;
1374
57ab7dae
CC		 1375 if (!obj || obj->type != ACPI_TYPE_INTEGER)
1376 goto exit;
3d7b1655 1377
57ab7dae
CC		 1378 code = obj->integer.value;
1379 orig_code = code;
3d7b1655 1380
c4453f6a
SF		 1381 if (asus->driver->key_filter) {
1382 asus->driver->key_filter(asus->driver, &code, &key_value,
1383 &autorelease);
1384 if (code == ASUS_WMI_KEY_IGNORE)
1385 goto exit;
1386 }
1387
57ab7dae 1388 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
3ba0302b 1389 code = ASUS_WMI_BRN_UP;
57ab7dae
CC		 1390 else if (code >= NOTIFY_BRNDOWN_MIN &&
1391 code <= NOTIFY_BRNDOWN_MAX)
3ba0302b 1392 code = ASUS_WMI_BRN_DOWN;
3d7b1655 1393
3ba0302b 1394 if (code == ASUS_WMI_BRN_DOWN || code == ASUS_WMI_BRN_UP) {
a2a96f0c 1395 if (!acpi_video_backlight_support()) {
57ab7dae 1396 asus_wmi_backlight_notify(asus, orig_code);
3ba0302b 1397 goto exit;
a2a96f0c 1398 }
a2a96f0c
AK		 1399 }
1400
1401 if (is_display_toggle(code) &&
1402 asus->driver->quirks->no_display_toggle)
1403 goto exit;
1404
1405 if (!sparse_keymap_report_event(asus->inputdev, code,
1406 key_value, autorelease))
57ab7dae 1407 pr_info("Unknown key %x pressed\n", code);
3d7b1655 1408
57ab7dae 1409exit:
3d7b1655
YW		 1410 kfree(obj);
1411}
1412
9e1565bc
CC		 1413/*
1414 * Sys helpers
1415 */
1416static int parse_arg(const char *buf, unsigned long count, int *val)
1417{
1418 if (!count)
1419 return 0;
1420 if (sscanf(buf, "%i", val) != 1)
1421 return -EINVAL;
1422 return count;
1423}
1424
1d070f89
CC		 1425static ssize_t store_sys_wmi(struct asus_wmi *asus, int devid,
1426 const char *buf, size_t count)
9e1565bc 1427{
9e1565bc 1428 u32 retval;
d33da3b6 1429 int rv, err, value;
9e1565bc 1430
1d070f89 1431 value = asus_wmi_get_devstate_simple(asus, devid);
e12e6d94 1432 if (value == -ENODEV) /* Check device presence */
9e1565bc
CC		 1433 return value;
1434
1435 rv = parse_arg(buf, count, &value);
d33da3b6
CC		 1436 err = asus_wmi_set_devstate(devid, value, &retval);
1437
1438 if (err < 0)
1439 return err;
9e1565bc 1440
9e1565bc
CC		 1441 return rv;
1442}
1443
1d070f89 1444static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
9e1565bc 1445{
1d070f89 1446 int value = asus_wmi_get_devstate_simple(asus, devid);
9e1565bc
CC		 1447
1448 if (value < 0)
1449 return value;
1450
1451 return sprintf(buf, "%d\n", value);
1452}
1453
e12e6d94 1454#define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \
9e1565bc
CC		 1455 static ssize_t show_##_name(struct device *dev, \
1456 struct device_attribute *attr, \
1457 char *buf) \
1458 { \
1d070f89
CC		 1459 struct asus_wmi *asus = dev_get_drvdata(dev); \
1460 \
1461 return show_sys_wmi(asus, _cm, buf); \
9e1565bc
CC		 1462 } \
1463 static ssize_t store_##_name(struct device *dev, \
1464 struct device_attribute *attr, \
1465 const char *buf, size_t count) \
1466 { \
1d070f89
CC		 1467 struct asus_wmi *asus = dev_get_drvdata(dev); \
1468 \
1469 return store_sys_wmi(asus, _cm, buf, count); \
9e1565bc
CC		 1470 } \
1471 static struct device_attribute dev_attr_##_name = { \
1472 .attr = { \
1473 .name = __stringify(_name), \
1474 .mode = _mode }, \
1475 .show = show_##_name, \
1476 .store = store_##_name, \
1477 }
1478
e12e6d94
CC		 1479ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD);
1480ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA);
1481ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
c0b91b6d 1482ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume, 0644, ASUS_WMI_DEVID_LID_RESUME);
9e1565bc 1483
67fa38ec
DT		 1484static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr,
1485 const char *buf, size_t count)
7f80d734 1486{
3df5fdad 1487 int value, rv;
7f80d734
CB		 1488
1489 if (!count || sscanf(buf, "%i", &value) != 1)
1490 return -EINVAL;
1491 if (value < 0 || value > 2)
1492 return -EINVAL;
1493
3df5fdad
CC		 1494 rv = asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL);
1495 if (rv < 0)
1496 return rv;
1497
1498 return count;
7f80d734
CB		 1499}
1500
1501static DEVICE_ATTR(cpufv, S_IRUGO | S_IWUSR, NULL, store_cpufv);
1502
4e37b42d
CC		 1503static struct attribute *platform_attributes[] = {
1504 &dev_attr_cpufv.attr,
9e1565bc
CC		 1505 &dev_attr_camera.attr,
1506 &dev_attr_cardr.attr,
4615bb66 1507 &dev_attr_touchpad.attr,
c0b91b6d 1508 &dev_attr_lid_resume.attr,
4e37b42d
CC		 1509 NULL
1510};
1511
587a1f16 1512static umode_t asus_sysfs_is_visible(struct kobject *kobj,
e12e6d94 1513 struct attribute *attr, int idx)
9e1565bc 1514{
1d070f89
CC		 1515 struct device *dev = container_of(kobj, struct device, kobj);
1516 struct platform_device *pdev = to_platform_device(dev);
1517 struct asus_wmi *asus = platform_get_drvdata(pdev);
1518 bool ok = true;
9e1565bc
CC		 1519 int devid = -1;
1520
1521 if (attr == &dev_attr_camera.attr)
e12e6d94 1522 devid = ASUS_WMI_DEVID_CAMERA;
9e1565bc 1523 else if (attr == &dev_attr_cardr.attr)
e12e6d94 1524 devid = ASUS_WMI_DEVID_CARDREADER;
4615bb66 1525 else if (attr == &dev_attr_touchpad.attr)
e12e6d94 1526 devid = ASUS_WMI_DEVID_TOUCHPAD;
c0b91b6d
AK		 1527 else if (attr == &dev_attr_lid_resume.attr)
1528 devid = ASUS_WMI_DEVID_LID_RESUME;
9e1565bc
CC		 1529
1530 if (devid != -1)
1d070f89 1531 ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
9e1565bc 1532
1d070f89 1533 return ok ? attr->mode : 0;
9e1565bc
CC		 1534}
1535
4e37b42d 1536static struct attribute_group platform_attribute_group = {
e12e6d94
CC		 1537 .is_visible = asus_sysfs_is_visible,
1538 .attrs = platform_attributes
4e37b42d
CC		 1539};
1540
e12e6d94 1541static void asus_wmi_sysfs_exit(struct platform_device *device)
7f80d734 1542{
4e37b42d 1543 sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
7f80d734
CB		 1544}
1545
e12e6d94 1546static int asus_wmi_sysfs_init(struct platform_device *device)
7f80d734 1547{
4e37b42d 1548 return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
7f80d734
CB		 1549}
1550
27c136c8
CC		 1551/*
1552 * Platform device
1553 */
39ddf3bf 1554static int asus_wmi_platform_init(struct asus_wmi *asus)
ee027e4a 1555{
46dbca87
CC		 1556 int rv;
1557
1558 /* INIT enable hotkeys on some models */
1559 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv))
1560 pr_info("Initialization: %#x", rv);
1561
1562 /* We don't know yet what to do with this version... */
1563 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) {
57d5c8e7 1564 pr_info("BIOS WMI version: %d.%d", rv >> 16, rv & 0xFF);
46dbca87
CC		 1565 asus->spec = rv;
1566 }
1567
1568 /*
1569 * The SFUN method probably allows the original driver to get the list
1570 * of features supported by a given model. For now, 0x0100 or 0x0800
1571 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
1572 * The significance of others is yet to be found.
1573 */
1574 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) {
1575 pr_info("SFUN value: %#x", rv);
1576 asus->sfun = rv;
1577 }
1578
1d070f89
CC		 1579 /*
1580 * Eee PC and Notebooks seems to have different method_id for DSTS,
1581 * but it may also be related to the BIOS's SPEC.
1582 * Note, on most Eeepc, there is no way to check if a method exist
1583 * or note, while on notebooks, they returns 0xFFFFFFFE on failure,
1584 * but once again, SPEC may probably be used for that kind of things.
1585 */
1586 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS, 0, 0, NULL))
1587 asus->dsts_id = ASUS_WMI_METHODID_DSTS;
63a78bb1 1588 else
1d070f89
CC		 1589 asus->dsts_id = ASUS_WMI_METHODID_DSTS2;
1590
fddbfed5
CC		 1591 /* CWAP allow to define the behavior of the Fn+F2 key,
1592 * this method doesn't seems to be present on Eee PCs */
6a2bcccd 1593 if (asus->driver->quirks->wapf >= 0)
fddbfed5 1594 asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP,
6a2bcccd 1595 asus->driver->quirks->wapf, NULL);
fddbfed5 1596
e12e6d94 1597 return asus_wmi_sysfs_init(asus->platform_device);
27c136c8
CC		 1598}
1599
e12e6d94 1600static void asus_wmi_platform_exit(struct asus_wmi *asus)
27c136c8 1601{
e12e6d94 1602 asus_wmi_sysfs_exit(asus->platform_device);
27c136c8
CC		 1603}
1604
8c1b2d83
CC		 1605/*
1606 * debugfs
1607 */
e12e6d94
CC		 1608struct asus_wmi_debugfs_node {
1609 struct asus_wmi *asus;
8c1b2d83 1610 char *name;
e12e6d94 1611 int (*show) (struct seq_file *m, void *data);
8c1b2d83
CC		 1612};
1613
1614static int show_dsts(struct seq_file *m, void *data)
1615{
e12e6d94 1616 struct asus_wmi *asus = m->private;
d33da3b6 1617 int err;
8c1b2d83
CC		 1618 u32 retval = -1;
1619
1d070f89 1620 err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
8c1b2d83 1621
d33da3b6
CC		 1622 if (err < 0)
1623 return err;
8c1b2d83 1624
ef343491 1625 seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval);
8c1b2d83
CC		 1626
1627 return 0;
1628}
1629
1630static int show_devs(struct seq_file *m, void *data)
1631{
e12e6d94 1632 struct asus_wmi *asus = m->private;
d33da3b6 1633 int err;
8c1b2d83
CC		 1634 u32 retval = -1;
1635
d33da3b6
CC		 1636 err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
1637 &retval);
1638
1639 if (err < 0)
1640 return err;
8c1b2d83 1641
ef343491 1642 seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id,
e12e6d94 1643 asus->debug.ctrl_param, retval);
8c1b2d83
CC		 1644
1645 return 0;
1646}
1647
ef343491
CC		 1648static int show_call(struct seq_file *m, void *data)
1649{
1650 struct asus_wmi *asus = m->private;
1651 struct bios_args args = {
1652 .arg0 = asus->debug.dev_id,
1653 .arg1 = asus->debug.ctrl_param,
1654 };
1655 struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
1656 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1657 union acpi_object *obj;
1658 acpi_status status;
1659
1660 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
1661 1, asus->debug.method_id,
1662 &input, &output);
1663
1664 if (ACPI_FAILURE(status))
1665 return -EIO;
1666
1667 obj = (union acpi_object *)output.pointer;
1668 if (obj && obj->type == ACPI_TYPE_INTEGER)
1669 seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id,
1670 asus->debug.dev_id, asus->debug.ctrl_param,
1671 (u32) obj->integer.value);
1672 else
1673 seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id,
1674 asus->debug.dev_id, asus->debug.ctrl_param,
a1d60867 1675 obj ? obj->type : -1);
ef343491
CC		 1676
1677 kfree(obj);
1678
1679 return 0;
1680}
1681
e12e6d94
CC		 1682static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = {
1683 {NULL, "devs", show_devs},
1684 {NULL, "dsts", show_dsts},
ef343491 1685 {NULL, "call", show_call},
8c1b2d83
CC		 1686};
1687
e12e6d94 1688static int asus_wmi_debugfs_open(struct inode *inode, struct file *file)
8c1b2d83 1689{
e12e6d94 1690 struct asus_wmi_debugfs_node *node = inode->i_private;
8c1b2d83 1691
e12e6d94 1692 return single_open(file, node->show, node->asus);
8c1b2d83
CC		 1693}
1694
e12e6d94 1695static const struct file_operations asus_wmi_debugfs_io_ops = {
8c1b2d83 1696 .owner = THIS_MODULE,
e12e6d94 1697 .open = asus_wmi_debugfs_open,
8c1b2d83
CC		 1698 .read = seq_read,
1699 .llseek = seq_lseek,
1700 .release = single_release,
1701};
1702
e12e6d94 1703static void asus_wmi_debugfs_exit(struct asus_wmi *asus)
8c1b2d83 1704{
e12e6d94 1705 debugfs_remove_recursive(asus->debug.root);
8c1b2d83
CC		 1706}
1707
e12e6d94 1708static int asus_wmi_debugfs_init(struct asus_wmi *asus)
8c1b2d83
CC		 1709{
1710 struct dentry *dent;
1711 int i;
1712
e12e6d94
CC		 1713 asus->debug.root = debugfs_create_dir(asus->driver->name, NULL);
1714 if (!asus->debug.root) {
8c1b2d83
CC		 1715 pr_err("failed to create debugfs directory");
1716 goto error_debugfs;
1717 }
1718
ef343491
CC		 1719 dent = debugfs_create_x32("method_id", S_IRUGO | S_IWUSR,
1720 asus->debug.root, &asus->debug.method_id);
1721 if (!dent)
1722 goto error_debugfs;
1723
e12e6d94
CC		 1724 dent = debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR,
1725 asus->debug.root, &asus->debug.dev_id);
8c1b2d83
CC		 1726 if (!dent)
1727 goto error_debugfs;
1728
e12e6d94
CC		 1729 dent = debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR,
1730 asus->debug.root, &asus->debug.ctrl_param);
8c1b2d83
CC		 1731 if (!dent)
1732 goto error_debugfs;
1733
e12e6d94
CC		 1734 for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) {
1735 struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i];
8c1b2d83 1736
e12e6d94 1737 node->asus = asus;
8c1b2d83 1738 dent = debugfs_create_file(node->name, S_IFREG | S_IRUGO,
e12e6d94
CC		 1739 asus->debug.root, node,
1740 &asus_wmi_debugfs_io_ops);
8c1b2d83
CC		 1741 if (!dent) {
1742 pr_err("failed to create debug file: %s\n", node->name);
1743 goto error_debugfs;
1744 }
1745 }
1746
1747 return 0;
1748
1749error_debugfs:
e12e6d94 1750 asus_wmi_debugfs_exit(asus);
8c1b2d83
CC		 1751 return -ENOMEM;
1752}
1753
27c136c8
CC		 1754/*
1755 * WMI Driver
1756 */
e12e6d94 1757static int asus_wmi_add(struct platform_device *pdev)
afa7c886 1758{
e12e6d94
CC		 1759 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
1760 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
1761 struct asus_wmi *asus;
ee027e4a 1762 acpi_status status;
27c136c8 1763 int err;
a50bd128 1764 u32 result;
ee027e4a 1765
e12e6d94
CC		 1766 asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL);
1767 if (!asus)
a04ce290
CC		 1768 return -ENOMEM;
1769
e12e6d94
CC		 1770 asus->driver = wdrv;
1771 asus->platform_device = pdev;
1772 wdrv->platform_device = pdev;
1773 platform_set_drvdata(asus->platform_device, asus);
27c136c8 1774
c87992d1
AK		 1775 if (wdrv->detect_quirks)
1776 wdrv->detect_quirks(asus->driver);
afa7c886 1777
e12e6d94 1778 err = asus_wmi_platform_init(asus);
27c136c8
CC		 1779 if (err)
1780 goto fail_platform;
45f2c693 1781
e12e6d94 1782 err = asus_wmi_input_init(asus);
45f2c693 1783 if (err)
27c136c8 1784 goto fail_input;
3d7b1655 1785
e07babde
CC		 1786 err = asus_wmi_hwmon_init(asus);
1787 if (err)
1788 goto fail_hwmon;
1789
e12e6d94 1790 err = asus_wmi_led_init(asus);
084fca63
CC		 1791 if (err)
1792 goto fail_leds;
1793
e12e6d94 1794 err = asus_wmi_rfkill_init(asus);
ba48fdb9
CC		 1795 if (err)
1796 goto fail_rfkill;
1797
272c77d5
AK		 1798 if (asus->driver->quirks->wmi_backlight_power)
1799 acpi_video_dmi_promote_vendor();
3d7b1655 1800 if (!acpi_video_backlight_support()) {
272c77d5
AK		 1801 pr_info("Disabling ACPI video driver\n");
1802 acpi_video_unregister();
e12e6d94 1803 err = asus_wmi_backlight_init(asus);
b7187265 1804 if (err && err != -ENODEV)
27c136c8 1805 goto fail_backlight;
3d7b1655
YW		 1806 } else
1807 pr_info("Backlight controlled by ACPI video driver\n");
45f2c693 1808
e12e6d94
CC		 1809 status = wmi_install_notify_handler(asus->driver->event_guid,
1810 asus_wmi_notify, asus);
45f2c693 1811 if (ACPI_FAILURE(status)) {
e12e6d94 1812 pr_err("Unable to register notify handler - %d\n", status);
45f2c693 1813 err = -ENODEV;
27c136c8 1814 goto fail_wmi_handler;
45f2c693
YW		 1815 }
1816
e12e6d94 1817 err = asus_wmi_debugfs_init(asus);
8c1b2d83
CC		 1818 if (err)
1819 goto fail_debugfs;
1820
a50bd128
AK		 1821 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result);
1822 if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT))
1823 asus->driver->wlan_ctrl_by_user = 1;
1824
a04ce290 1825 return 0;
45f2c693 1826
8c1b2d83 1827fail_debugfs:
e12e6d94 1828 wmi_remove_notify_handler(asus->driver->event_guid);
27c136c8 1829fail_wmi_handler:
e12e6d94 1830 asus_wmi_backlight_exit(asus);
27c136c8 1831fail_backlight:
e12e6d94 1832 asus_wmi_rfkill_exit(asus);
ba48fdb9 1833fail_rfkill:
e12e6d94 1834 asus_wmi_led_exit(asus);
084fca63 1835fail_leds:
e07babde
CC		 1836 asus_wmi_hwmon_exit(asus);
1837fail_hwmon:
e12e6d94 1838 asus_wmi_input_exit(asus);
27c136c8 1839fail_input:
e12e6d94 1840 asus_wmi_platform_exit(asus);
27c136c8 1841fail_platform:
e12e6d94 1842 kfree(asus);
a04ce290 1843 return err;
45f2c693
YW		 1844}
1845
e12e6d94 1846static int asus_wmi_remove(struct platform_device *device)
45f2c693 1847{
e12e6d94
CC		 1848 struct asus_wmi *asus;
1849
1850 asus = platform_get_drvdata(device);
1851 wmi_remove_notify_handler(asus->driver->event_guid);
1852 asus_wmi_backlight_exit(asus);
1853 asus_wmi_input_exit(asus);
e07babde 1854 asus_wmi_hwmon_exit(asus);
e12e6d94
CC		 1855 asus_wmi_led_exit(asus);
1856 asus_wmi_rfkill_exit(asus);
1857 asus_wmi_debugfs_exit(asus);
1858 asus_wmi_platform_exit(asus);
1859
1860 kfree(asus);
45f2c693
YW		 1861 return 0;
1862}
1863
0773d7f9
CC		 1864/*
1865 * Platform driver - hibernate/resume callbacks
1866 */
e12e6d94 1867static int asus_hotk_thaw(struct device *device)
0773d7f9 1868{
e12e6d94 1869 struct asus_wmi *asus = dev_get_drvdata(device);
0773d7f9 1870
a7ce3f04 1871 if (asus->wlan.rfkill) {
0773d7f9
CC		 1872 bool wlan;
1873
1874 /*
1875 * Work around bios bug - acpi _PTS turns off the wireless led
1876 * during suspend. Normally it restores it on resume, but
1877 * we should kick it ourselves in case hibernation is aborted.
1878 */
1d070f89 1879 wlan = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
e12e6d94 1880 asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL);
0773d7f9
CC		 1881 }
1882
1883 return 0;
1884}
1885
e12e6d94 1886static int asus_hotk_restore(struct device *device)
0773d7f9 1887{
e12e6d94 1888 struct asus_wmi *asus = dev_get_drvdata(device);
0773d7f9
CC		 1889 int bl;
1890
1891 /* Refresh both wlan rfkill state and pci hotplug */
a7ce3f04 1892 if (asus->wlan.rfkill)
e12e6d94 1893 asus_rfkill_hotplug(asus);
0773d7f9 1894
a7ce3f04 1895 if (asus->bluetooth.rfkill) {
1d070f89
CC		 1896 bl = !asus_wmi_get_devstate_simple(asus,
1897 ASUS_WMI_DEVID_BLUETOOTH);
a7ce3f04 1898 rfkill_set_sw_state(asus->bluetooth.rfkill, bl);
2e9e159d 1899 }
a7ce3f04 1900 if (asus->wimax.rfkill) {
1d070f89 1901 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WIMAX);
a7ce3f04 1902 rfkill_set_sw_state(asus->wimax.rfkill, bl);
2e9e159d 1903 }
a7ce3f04 1904 if (asus->wwan3g.rfkill) {
1d070f89 1905 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WWAN3G);
a7ce3f04 1906 rfkill_set_sw_state(asus->wwan3g.rfkill, bl);
0773d7f9 1907 }
43be8bde
CC		 1908 if (asus->gps.rfkill) {
1909 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPS);
1910 rfkill_set_sw_state(asus->gps.rfkill, bl);
1911 }
a912d329
CC		 1912 if (asus->uwb.rfkill) {
1913 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_UWB);
1914 rfkill_set_sw_state(asus->uwb.rfkill, bl);
1915 }
0773d7f9
CC		 1916
1917 return 0;
1918}
1919
e12e6d94
CC		 1920static const struct dev_pm_ops asus_pm_ops = {
1921 .thaw = asus_hotk_thaw,
1922 .restore = asus_hotk_restore,
45f2c693
YW		 1923};
1924
e12e6d94 1925static int asus_wmi_probe(struct platform_device *pdev)
d358cb55 1926{
e12e6d94
CC		 1927 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
1928 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
1929 int ret;
d358cb55 1930
e12e6d94 1931 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
5ad77dcf 1932 pr_warn("Management GUID not found\n");
ee027e4a
YW		 1933 return -ENODEV;
1934 }
1935
e12e6d94 1936 if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) {
5ad77dcf 1937 pr_warn("Event GUID not found\n");
d358cb55
CC		 1938 return -ENODEV;
1939 }
1940
e12e6d94
CC		 1941 if (wdrv->probe) {
1942 ret = wdrv->probe(pdev);
1943 if (ret)
1944 return ret;
1945 }
1946
1947 return asus_wmi_add(pdev);
a04ce290 1948}
45f2c693 1949
e12e6d94 1950static bool used;
ee027e4a 1951
8fe8c25e 1952int __init_or_module asus_wmi_register_driver(struct asus_wmi_driver *driver)
a04ce290 1953{
e12e6d94
CC		 1954 struct platform_driver *platform_driver;
1955 struct platform_device *platform_device;
1956
1957 if (used)
1958 return -EBUSY;
1959
1960 platform_driver = &driver->platform_driver;
1961 platform_driver->remove = asus_wmi_remove;
1962 platform_driver->driver.owner = driver->owner;
1963 platform_driver->driver.name = driver->name;
1964 platform_driver->driver.pm = &asus_pm_ops;
1965
1966 platform_device = platform_create_bundle(platform_driver,
1967 asus_wmi_probe,
a04ce290
CC		 1968 NULL, 0, NULL, 0);
1969 if (IS_ERR(platform_device))
1970 return PTR_ERR(platform_device);
e12e6d94
CC		 1971
1972 used = true;
1973 return 0;
1974}
1975EXPORT_SYMBOL_GPL(asus_wmi_register_driver);
1976
1977void asus_wmi_unregister_driver(struct asus_wmi_driver *driver)
1978{
1979 platform_device_unregister(driver->platform_device);
1980 platform_driver_unregister(&driver->platform_driver);
1981 used = false;
1982}
1983EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver);
1984
1985static int __init asus_wmi_init(void)
1986{
1987 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
1988 pr_info("Asus Management GUID not found");
1989 return -ENODEV;
1990 }
1991
1992 pr_info("ASUS WMI generic driver loaded");
ee027e4a
YW		 1993 return 0;
1994}
1995
e12e6d94 1996static void __exit asus_wmi_exit(void)
ee027e4a 1997{
e12e6d94 1998 pr_info("ASUS WMI generic driver unloaded");
ee027e4a
YW		 1999}
2000
e12e6d94
CC		 2001module_init(asus_wmi_init);
2002module_exit(asus_wmi_exit);
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