drivers/platform/x86/asus-wmi.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Asus PC WMI hotkey driver
   4  *
   5  * Copyright(C) 2010 Intel Corporation.
   6  * Copyright(C) 2010-2011 Corentin Chary <[email protected]>
   7  *
   8  * Portions based on wistron_btns.c:
   9  * Copyright (C) 2005 Miloslav Trmac <[email protected]>
  10  * Copyright (C) 2005 Bernhard Rosenkraenzer <[email protected]>
  11  * Copyright (C) 2005 Dmitry Torokhov <[email protected]>
  12  */
  13
  14 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  15
  16 #include <linux/acpi.h>
  17 #include <linux/backlight.h>
  18 #include <linux/debugfs.h>
  19 #include <linux/dmi.h>
  20 #include <linux/fb.h>
  21 #include <linux/hwmon.h>
  22 #include <linux/hwmon-sysfs.h>
  23 #include <linux/init.h>
  24 #include <linux/input.h>
  25 #include <linux/input/sparse-keymap.h>
  26 #include <linux/kernel.h>
  27 #include <linux/leds.h>
  28 #include <linux/module.h>
  29 #include <linux/pci.h>
  30 #include <linux/pci_hotplug.h>
  31 #include <linux/platform_data/x86/asus-wmi.h>
  32 #include <linux/platform_device.h>
  33 #include <linux/platform_profile.h>
  34 #include <linux/power_supply.h>
  35 #include <linux/rfkill.h>
  36 #include <linux/seq_file.h>
  37 #include <linux/slab.h>
  38 #include <linux/types.h>
  39 #include <linux/units.h>
  40
  41 #include <acpi/battery.h>
  42 #include <acpi/video.h>
  43
  44 #include "asus-wmi.h"
  45
  46 MODULE_AUTHOR("Corentin Chary <[email protected]>");
  47 MODULE_AUTHOR("Yong Wang <[email protected]>");
  48 MODULE_DESCRIPTION("Asus Generic WMI Driver");
  49 MODULE_LICENSE("GPL");
  50
  51 static bool fnlock_default = true;
  52 module_param(fnlock_default, bool, 0444);
  53
  54 #define to_asus_wmi_driver(pdrv)                                        \
  55         (container_of((pdrv), struct asus_wmi_driver, platform_driver))
  56
  57 #define ASUS_WMI_MGMT_GUID      "97845ED0-4E6D-11DE-8A39-0800200C9A66"
  58
  59 #define NOTIFY_BRNUP_MIN                0x11
  60 #define NOTIFY_BRNUP_MAX                0x1f
  61 #define NOTIFY_BRNDOWN_MIN              0x20
  62 #define NOTIFY_BRNDOWN_MAX              0x2e
  63 #define NOTIFY_FNLOCK_TOGGLE            0x4e
  64 #define NOTIFY_KBD_DOCK_CHANGE          0x75
  65 #define NOTIFY_KBD_BRTUP                0xc4
  66 #define NOTIFY_KBD_BRTDWN               0xc5
  67 #define NOTIFY_KBD_BRTTOGGLE            0xc7
  68 #define NOTIFY_KBD_FBM                  0x99
  69 #define NOTIFY_KBD_TTP                  0xae
  70 #define NOTIFY_LID_FLIP                 0xfa
  71 #define NOTIFY_LID_FLIP_ROG             0xbd
  72
  73 #define ASUS_WMI_FNLOCK_BIOS_DISABLED   BIT(0)
  74
  75 #define ASUS_GPU_FAN_DESC               "gpu_fan"
  76 #define ASUS_FAN_DESC                   "cpu_fan"
  77 #define ASUS_FAN_MFUN                   0x13
  78 #define ASUS_FAN_SFUN_READ              0x06
  79 #define ASUS_FAN_SFUN_WRITE             0x07
  80
  81 /* Based on standard hwmon pwmX_enable values */
  82 #define ASUS_FAN_CTRL_FULLSPEED         0
  83 #define ASUS_FAN_CTRL_MANUAL            1
  84 #define ASUS_FAN_CTRL_AUTO              2
  85
  86 #define ASUS_FAN_BOOST_MODE_NORMAL              0
  87 #define ASUS_FAN_BOOST_MODE_OVERBOOST           1
  88 #define ASUS_FAN_BOOST_MODE_OVERBOOST_MASK      0x01
  89 #define ASUS_FAN_BOOST_MODE_SILENT              2
  90 #define ASUS_FAN_BOOST_MODE_SILENT_MASK         0x02
  91 #define ASUS_FAN_BOOST_MODES_MASK               0x03
  92
  93 #define ASUS_THROTTLE_THERMAL_POLICY_DEFAULT    0
  94 #define ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST  1
  95 #define ASUS_THROTTLE_THERMAL_POLICY_SILENT     2
  96
  97 #define USB_INTEL_XUSB2PR               0xD0
  98 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI   0x9c31
  99
 100 #define ASUS_ACPI_UID_ASUSWMI           "ASUSWMI"
 101 #define ASUS_ACPI_UID_ATK               "ATK"
 102
 103 #define WMI_EVENT_QUEUE_SIZE            0x10
 104 #define WMI_EVENT_QUEUE_END             0x1
 105 #define WMI_EVENT_MASK                  0xFFFF
 106 /* The WMI hotkey event value is always the same. */
 107 #define WMI_EVENT_VALUE_ATK             0xFF
 108
 109 #define WMI_EVENT_MASK                  0xFFFF
 110
 111 #define FAN_CURVE_POINTS                8
 112 #define FAN_CURVE_BUF_LEN               32
 113 #define FAN_CURVE_DEV_CPU               0x00
 114 #define FAN_CURVE_DEV_GPU               0x01
 115 /* Mask to determine if setting temperature or percentage */
 116 #define FAN_CURVE_PWM_MASK              0x04
 117
 118 static const char * const ashs_ids[] = { "ATK4001", "ATK4002", NULL };
 119
 120 static int throttle_thermal_policy_write(struct asus_wmi *);
 121
 122 static bool ashs_present(void)
 123 {
 124         int i = 0;
 125         while (ashs_ids[i]) {
 126                 if (acpi_dev_found(ashs_ids[i++]))
 127                         return true;
 128         }
 129         return false;
 130 }
 131
 132 struct bios_args {
 133         u32 arg0;
 134         u32 arg1;
 135         u32 arg2; /* At least TUF Gaming series uses 3 dword input buffer. */
 136         u32 arg3;
 137         u32 arg4; /* Some ROG laptops require a full 5 input args */
 138         u32 arg5;
 139 } __packed;
 140
 141 /*
 142  * Struct that's used for all methods called via AGFN. Naming is
 143  * identically to the AML code.
 144  */
 145 struct agfn_args {
 146         u16 mfun; /* probably "Multi-function" to be called */
 147         u16 sfun; /* probably "Sub-function" to be called */
 148         u16 len;  /* size of the hole struct, including subfunction fields */
 149         u8 stas;  /* not used by now */
 150         u8 err;   /* zero on success */
 151 } __packed;
 152
 153 /* struct used for calling fan read and write methods */
 154 struct agfn_fan_args {
 155         struct agfn_args agfn;  /* common fields */
 156         u8 fan;                 /* fan number: 0: set auto mode 1: 1st fan */
 157         u32 speed;              /* read: RPM/100 - write: 0-255 */
 158 } __packed;
 159
 160 /*
 161  * <platform>/    - debugfs root directory
 162  *   dev_id      - current dev_id
 163  *   ctrl_param  - current ctrl_param
 164  *   method_id   - current method_id
 165  *   devs        - call DEVS(dev_id, ctrl_param) and print result
 166  *   dsts        - call DSTS(dev_id)  and print result
 167  *   call        - call method_id(dev_id, ctrl_param) and print result
 168  */
 169 struct asus_wmi_debug {
 170         struct dentry *root;
 171         u32 method_id;
 172         u32 dev_id;
 173         u32 ctrl_param;
 174 };
 175
 176 struct asus_rfkill {
 177         struct asus_wmi *asus;
 178         struct rfkill *rfkill;
 179         u32 dev_id;
 180 };
 181
 182 enum fan_type {
 183         FAN_TYPE_NONE = 0,
 184         FAN_TYPE_AGFN,          /* deprecated on newer platforms */
 185         FAN_TYPE_SPEC83,        /* starting in Spec 8.3, use CPU_FAN_CTRL */
 186 };
 187
 188 struct fan_curve_data {
 189         bool enabled;
 190         u32 device_id;
 191         u8 temps[FAN_CURVE_POINTS];
 192         u8 percents[FAN_CURVE_POINTS];
 193 };
 194
 195 struct asus_wmi {
 196         int dsts_id;
 197         int spec;
 198         int sfun;
 199         bool wmi_event_queue;
 200
 201         struct input_dev *inputdev;
 202         struct backlight_device *backlight_device;
 203         struct platform_device *platform_device;
 204
 205         struct led_classdev wlan_led;
 206         int wlan_led_wk;
 207         struct led_classdev tpd_led;
 208         int tpd_led_wk;
 209         struct led_classdev kbd_led;
 210         int kbd_led_wk;
 211         struct led_classdev lightbar_led;
 212         int lightbar_led_wk;
 213         struct led_classdev micmute_led;
 214         struct workqueue_struct *led_workqueue;
 215         struct work_struct tpd_led_work;
 216         struct work_struct wlan_led_work;
 217         struct work_struct lightbar_led_work;
 218
 219         struct asus_rfkill wlan;
 220         struct asus_rfkill bluetooth;
 221         struct asus_rfkill wimax;
 222         struct asus_rfkill wwan3g;
 223         struct asus_rfkill gps;
 224         struct asus_rfkill uwb;
 225
 226         int tablet_switch_event_code;
 227         u32 tablet_switch_dev_id;
 228
 229         enum fan_type fan_type;
 230         enum fan_type gpu_fan_type;
 231         int fan_pwm_mode;
 232         int gpu_fan_pwm_mode;
 233         int agfn_pwm;
 234
 235         bool fan_boost_mode_available;
 236         u8 fan_boost_mode_mask;
 237         u8 fan_boost_mode;
 238
 239         bool egpu_enable_available;
 240         bool dgpu_disable_available;
 241         bool gpu_mux_mode_available;
 242
 243         bool kbd_rgb_mode_available;
 244         bool kbd_rgb_state_available;
 245
 246         bool throttle_thermal_policy_available;
 247         u8 throttle_thermal_policy_mode;
 248
 249         bool cpu_fan_curve_available;
 250         bool gpu_fan_curve_available;
 251         struct fan_curve_data custom_fan_curves[2];
 252
 253         struct platform_profile_handler platform_profile_handler;
 254         bool platform_profile_support;
 255
 256         // The RSOC controls the maximum charging percentage.
 257         bool battery_rsoc_available;
 258
 259         bool panel_overdrive_available;
 260
 261         struct hotplug_slot hotplug_slot;
 262         struct mutex hotplug_lock;
 263         struct mutex wmi_lock;
 264         struct workqueue_struct *hotplug_workqueue;
 265         struct work_struct hotplug_work;
 266
 267         bool fnlock_locked;
 268
 269         struct asus_wmi_debug debug;
 270
 271         struct asus_wmi_driver *driver;
 272 };
 273
 274 /* WMI ************************************************************************/
 275
 276 static int asus_wmi_evaluate_method3(u32 method_id,
 277                 u32 arg0, u32 arg1, u32 arg2, u32 *retval)
 278 {
 279         struct bios_args args = {
 280                 .arg0 = arg0,
 281                 .arg1 = arg1,
 282                 .arg2 = arg2,
 283         };
 284         struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
 285         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
 286         acpi_status status;
 287         union acpi_object *obj;
 288         u32 tmp = 0;
 289
 290         status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
 291                                      &input, &output);
 292
 293         if (ACPI_FAILURE(status))
 294                 return -EIO;
 295
 296         obj = (union acpi_object *)output.pointer;
 297         if (obj && obj->type == ACPI_TYPE_INTEGER)
 298                 tmp = (u32) obj->integer.value;
 299
 300         if (retval)
 301                 *retval = tmp;
 302
 303         kfree(obj);
 304
 305         if (tmp == ASUS_WMI_UNSUPPORTED_METHOD)
 306                 return -ENODEV;
 307
 308         return 0;
 309 }
 310
 311 int asus_wmi_evaluate_method(u32 method_id, u32 arg0, u32 arg1, u32 *retval)
 312 {
 313         return asus_wmi_evaluate_method3(method_id, arg0, arg1, 0, retval);
 314 }
 315 EXPORT_SYMBOL_GPL(asus_wmi_evaluate_method);
 316
 317 static int asus_wmi_evaluate_method5(u32 method_id,
 318                 u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4, u32 *retval)
 319 {
 320         struct bios_args args = {
 321                 .arg0 = arg0,
 322                 .arg1 = arg1,
 323                 .arg2 = arg2,
 324                 .arg3 = arg3,
 325                 .arg4 = arg4,
 326         };
 327         struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
 328         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
 329         acpi_status status;
 330         union acpi_object *obj;
 331         u32 tmp = 0;
 332
 333         status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
 334                                      &input, &output);
 335
 336         if (ACPI_FAILURE(status))
 337                 return -EIO;
 338
 339         obj = (union acpi_object *)output.pointer;
 340         if (obj && obj->type == ACPI_TYPE_INTEGER)
 341                 tmp = (u32) obj->integer.value;
 342
 343         if (retval)
 344                 *retval = tmp;
 345
 346         kfree(obj);
 347
 348         if (tmp == ASUS_WMI_UNSUPPORTED_METHOD)
 349                 return -ENODEV;
 350
 351         return 0;
 352 }
 353
 354 /*
 355  * Returns as an error if the method output is not a buffer. Typically this
 356  * means that the method called is unsupported.
 357  */
 358 static int asus_wmi_evaluate_method_buf(u32 method_id,
 359                 u32 arg0, u32 arg1, u8 *ret_buffer, size_t size)
 360 {
 361         struct bios_args args = {
 362                 .arg0 = arg0,
 363                 .arg1 = arg1,
 364                 .arg2 = 0,
 365         };
 366         struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
 367         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
 368         acpi_status status;
 369         union acpi_object *obj;
 370         int err = 0;
 371
 372         status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
 373                                      &input, &output);
 374
 375         if (ACPI_FAILURE(status))
 376                 return -EIO;
 377
 378         obj = (union acpi_object *)output.pointer;
 379
 380         switch (obj->type) {
 381         case ACPI_TYPE_BUFFER:
 382                 if (obj->buffer.length > size) {
 383                         err = -ENOSPC;
 384                         break;
 385                 }
 386                 if (obj->buffer.length == 0) {
 387                         err = -ENODATA;
 388                         break;
 389                 }
 390
 391                 memcpy(ret_buffer, obj->buffer.pointer, obj->buffer.length);
 392                 break;
 393         case ACPI_TYPE_INTEGER:
 394                 err = (u32)obj->integer.value;
 395
 396                 if (err == ASUS_WMI_UNSUPPORTED_METHOD)
 397                         err = -ENODEV;
 398                 /*
 399                  * At least one method returns a 0 with no buffer if no arg
 400                  * is provided, such as ASUS_WMI_DEVID_CPU_FAN_CURVE
 401                  */
 402                 if (err == 0)
 403                         err = -ENODATA;
 404                 break;
 405         default:
 406                 err = -ENODATA;
 407                 break;
 408         }
 409
 410         kfree(obj);
 411
 412         if (err)
 413                 return err;
 414
 415         return 0;
 416 }
 417
 418 static int asus_wmi_evaluate_method_agfn(const struct acpi_buffer args)
 419 {
 420         struct acpi_buffer input;
 421         u64 phys_addr;
 422         u32 retval;
 423         u32 status;
 424
 425         /*
 426          * Copy to dma capable address otherwise memory corruption occurs as
 427          * bios has to be able to access it.
 428          */
 429         input.pointer = kmemdup(args.pointer, args.length, GFP_DMA | GFP_KERNEL);
 430         input.length = args.length;
 431         if (!input.pointer)
 432                 return -ENOMEM;
 433         phys_addr = virt_to_phys(input.pointer);
 434
 435         status = asus_wmi_evaluate_method(ASUS_WMI_METHODID_AGFN,
 436                                         phys_addr, 0, &retval);
 437         if (!status)
 438                 memcpy(args.pointer, input.pointer, args.length);
 439
 440         kfree(input.pointer);
 441         if (status)
 442                 return -ENXIO;
 443
 444         return retval;
 445 }
 446
 447 static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval)
 448 {
 449         return asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval);
 450 }
 451
 452 static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
 453                                  u32 *retval)
 454 {
 455         return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS, dev_id,
 456                                         ctrl_param, retval);
 457 }
 458
 459 /* Helper for special devices with magic return codes */
 460 static int asus_wmi_get_devstate_bits(struct asus_wmi *asus,
 461                                       u32 dev_id, u32 mask)
 462 {
 463         u32 retval = 0;
 464         int err;
 465
 466         err = asus_wmi_get_devstate(asus, dev_id, &retval);
 467         if (err < 0)
 468                 return err;
 469
 470         if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT))
 471                 return -ENODEV;
 472
 473         if (mask == ASUS_WMI_DSTS_STATUS_BIT) {
 474                 if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT)
 475                         return -ENODEV;
 476         }
 477
 478         return retval & mask;
 479 }
 480
 481 static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id)
 482 {
 483         return asus_wmi_get_devstate_bits(asus, dev_id,
 484                                           ASUS_WMI_DSTS_STATUS_BIT);
 485 }
 486
 487 static bool asus_wmi_dev_is_present(struct asus_wmi *asus, u32 dev_id)
 488 {
 489         u32 retval;
 490         int status = asus_wmi_get_devstate(asus, dev_id, &retval);
 491
 492         return status == 0 && (retval & ASUS_WMI_DSTS_PRESENCE_BIT);
 493 }
 494
 495 /* Input **********************************************************************/
 496 static void asus_wmi_tablet_sw_init(struct asus_wmi *asus, u32 dev_id, int event_code)
 497 {
 498         struct device *dev = &asus->platform_device->dev;
 499         int result;
 500
 501         result = asus_wmi_get_devstate_simple(asus, dev_id);
 502         if (result >= 0) {
 503                 input_set_capability(asus->inputdev, EV_SW, SW_TABLET_MODE);
 504                 input_report_switch(asus->inputdev, SW_TABLET_MODE, result);
 505                 asus->tablet_switch_dev_id = dev_id;
 506                 asus->tablet_switch_event_code = event_code;
 507         } else if (result == -ENODEV) {
 508                 dev_err(dev, "This device has tablet-mode-switch quirk but got ENODEV checking it. This is a bug.");
 509         } else {
 510                 dev_err(dev, "Error checking for tablet-mode-switch: %d\n", result);
 511         }
 512 }
 513
 514 static int asus_wmi_input_init(struct asus_wmi *asus)
 515 {
 516         struct device *dev = &asus->platform_device->dev;
 517         int err;
 518
 519         asus->inputdev = input_allocate_device();
 520         if (!asus->inputdev)
 521                 return -ENOMEM;
 522
 523         asus->inputdev->name = asus->driver->input_name;
 524         asus->inputdev->phys = asus->driver->input_phys;
 525         asus->inputdev->id.bustype = BUS_HOST;
 526         asus->inputdev->dev.parent = dev;
 527         set_bit(EV_REP, asus->inputdev->evbit);
 528
 529         err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL);
 530         if (err)
 531                 goto err_free_dev;
 532
 533         switch (asus->driver->quirks->tablet_switch_mode) {
 534         case asus_wmi_no_tablet_switch:
 535                 break;
 536         case asus_wmi_kbd_dock_devid:
 537                 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_KBD_DOCK, NOTIFY_KBD_DOCK_CHANGE);
 538                 break;
 539         case asus_wmi_lid_flip_devid:
 540                 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_LID_FLIP, NOTIFY_LID_FLIP);
 541                 break;
 542         case asus_wmi_lid_flip_rog_devid:
 543                 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_LID_FLIP_ROG, NOTIFY_LID_FLIP_ROG);
 544                 break;
 545         }
 546
 547         err = input_register_device(asus->inputdev);
 548         if (err)
 549                 goto err_free_dev;
 550
 551         return 0;
 552
 553 err_free_dev:
 554         input_free_device(asus->inputdev);
 555         return err;
 556 }
 557
 558 static void asus_wmi_input_exit(struct asus_wmi *asus)
 559 {
 560         if (asus->inputdev)
 561                 input_unregister_device(asus->inputdev);
 562
 563         asus->inputdev = NULL;
 564 }
 565
 566 /* Tablet mode ****************************************************************/
 567
 568 static void asus_wmi_tablet_mode_get_state(struct asus_wmi *asus)
 569 {
 570         int result;
 571
 572         if (!asus->tablet_switch_dev_id)
 573                 return;
 574
 575         result = asus_wmi_get_devstate_simple(asus, asus->tablet_switch_dev_id);
 576         if (result >= 0) {
 577                 input_report_switch(asus->inputdev, SW_TABLET_MODE, result);
 578                 input_sync(asus->inputdev);
 579         }
 580 }
 581
 582 /* dGPU ********************************************************************/
 583 static ssize_t dgpu_disable_show(struct device *dev,
 584                                    struct device_attribute *attr, char *buf)
 585 {
 586         struct asus_wmi *asus = dev_get_drvdata(dev);
 587         int result;
 588
 589         result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_DGPU);
 590         if (result < 0)
 591                 return result;
 592
 593         return sysfs_emit(buf, "%d\n", result);
 594 }
 595
 596 /*
 597  * A user may be required to store the value twice, typcial store first, then
 598  * rescan PCI bus to activate power, then store a second time to save correctly.
 599  * The reason for this is that an extra code path in the ACPI is enabled when
 600  * the device and bus are powered.
 601  */
 602 static ssize_t dgpu_disable_store(struct device *dev,
 603                                     struct device_attribute *attr,
 604                                     const char *buf, size_t count)
 605 {
 606         int result, err;
 607         u32 disable;
 608
 609         struct asus_wmi *asus = dev_get_drvdata(dev);
 610
 611         result = kstrtou32(buf, 10, &disable);
 612         if (result)
 613                 return result;
 614
 615         if (disable > 1)
 616                 return -EINVAL;
 617
 618         err = asus_wmi_set_devstate(ASUS_WMI_DEVID_DGPU, disable, &result);
 619         if (err) {
 620                 pr_warn("Failed to set dgpu disable: %d\n", err);
 621                 return err;
 622         }
 623
 624         if (result > 1) {
 625                 pr_warn("Failed to set dgpu disable (result): 0x%x\n", result);
 626                 return -EIO;
 627         }
 628
 629         sysfs_notify(&asus->platform_device->dev.kobj, NULL, "dgpu_disable");
 630
 631         return count;
 632 }
 633 static DEVICE_ATTR_RW(dgpu_disable);
 634
 635 /* eGPU ********************************************************************/
 636 static ssize_t egpu_enable_show(struct device *dev,
 637                                    struct device_attribute *attr, char *buf)
 638 {
 639         struct asus_wmi *asus = dev_get_drvdata(dev);
 640         int result;
 641
 642         result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU);
 643         if (result < 0)
 644                 return result;
 645
 646         return sysfs_emit(buf, "%d\n", result);
 647 }
 648
 649 /* The ACPI call to enable the eGPU also disables the internal dGPU */
 650 static ssize_t egpu_enable_store(struct device *dev,
 651                                     struct device_attribute *attr,
 652                                     const char *buf, size_t count)
 653 {
 654         int result, err;
 655         u32 enable;
 656
 657         struct asus_wmi *asus = dev_get_drvdata(dev);
 658
 659         err = kstrtou32(buf, 10, &enable);
 660         if (err)
 661                 return err;
 662
 663         if (enable > 1)
 664                 return -EINVAL;
 665
 666         err = asus_wmi_set_devstate(ASUS_WMI_DEVID_EGPU, enable, &result);
 667         if (err) {
 668                 pr_warn("Failed to set egpu disable: %d\n", err);
 669                 return err;
 670         }
 671
 672         if (result > 1) {
 673                 pr_warn("Failed to set egpu disable (retval): 0x%x\n", result);
 674                 return -EIO;
 675         }
 676
 677         sysfs_notify(&asus->platform_device->dev.kobj, NULL, "egpu_enable");
 678
 679         return count;
 680 }
 681 static DEVICE_ATTR_RW(egpu_enable);
 682
 683 /* gpu mux switch *************************************************************/
 684 static ssize_t gpu_mux_mode_show(struct device *dev,
 685                                  struct device_attribute *attr, char *buf)
 686 {
 687         struct asus_wmi *asus = dev_get_drvdata(dev);
 688         int result;
 689
 690         result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPU_MUX);
 691         if (result < 0)
 692                 return result;
 693
 694         return sysfs_emit(buf, "%d\n", result);
 695 }
 696
 697 static ssize_t gpu_mux_mode_store(struct device *dev,
 698                                   struct device_attribute *attr,
 699                                   const char *buf, size_t count)
 700 {
 701         struct asus_wmi *asus = dev_get_drvdata(dev);
 702         int result, err;
 703         u32 optimus;
 704
 705         err = kstrtou32(buf, 10, &optimus);
 706         if (err)
 707                 return err;
 708
 709         if (optimus > 1)
 710                 return -EINVAL;
 711
 712         err = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_MUX, optimus, &result);
 713         if (err) {
 714                 dev_err(dev, "Failed to set GPU MUX mode: %d\n", err);
 715                 return err;
 716         }
 717         /* !1 is considered a fail by ASUS */
 718         if (result != 1) {
 719                 dev_warn(dev, "Failed to set GPU MUX mode (result): 0x%x\n", result);
 720                 return -EIO;
 721         }
 722
 723         sysfs_notify(&asus->platform_device->dev.kobj, NULL, "gpu_mux_mode");
 724
 725         return count;
 726 }
 727 static DEVICE_ATTR_RW(gpu_mux_mode);
 728
 729 /* TUF Laptop Keyboard RGB Modes **********************************************/
 730 static ssize_t kbd_rgb_mode_store(struct device *dev,
 731                                  struct device_attribute *attr,
 732                                  const char *buf, size_t count)
 733 {
 734         u32 cmd, mode, r, g,  b,  speed;
 735         int err;
 736
 737         if (sscanf(buf, "%d %d %d %d %d %d", &cmd, &mode, &r, &g, &b, &speed) != 6)
 738                 return -EINVAL;
 739
 740         cmd = !!cmd;
 741
 742         /* These are the known usable modes across all TUF/ROG */
 743         if (mode >= 12 || mode == 9)
 744                 mode = 10;
 745
 746         switch (speed) {
 747         case 0:
 748                 speed = 0xe1;
 749                 break;
 750         case 1:
 751                 speed = 0xeb;
 752                 break;
 753         case 2:
 754                 speed = 0xf5;
 755                 break;
 756         default:
 757                 speed = 0xeb;
 758         }
 759
 760         err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS, ASUS_WMI_DEVID_TUF_RGB_MODE,
 761                         cmd | (mode << 8) | (r << 16) | (g << 24), b | (speed << 8), NULL);
 762         if (err)
 763                 return err;
 764
 765         return count;
 766 }
 767 static DEVICE_ATTR_WO(kbd_rgb_mode);
 768
 769 static ssize_t kbd_rgb_mode_index_show(struct device *device,
 770                                                  struct device_attribute *attr,
 771                                                  char *buf)
 772 {
 773         return sysfs_emit(buf, "%s\n", "cmd mode red green blue speed");
 774 }
 775 static DEVICE_ATTR_RO(kbd_rgb_mode_index);
 776
 777 static struct attribute *kbd_rgb_mode_attrs[] = {
 778         &dev_attr_kbd_rgb_mode.attr,
 779         &dev_attr_kbd_rgb_mode_index.attr,
 780         NULL,
 781 };
 782
 783 static const struct attribute_group kbd_rgb_mode_group = {
 784         .attrs = kbd_rgb_mode_attrs,
 785 };
 786
 787 /* TUF Laptop Keyboard RGB State **********************************************/
 788 static ssize_t kbd_rgb_state_store(struct device *dev,
 789                                  struct device_attribute *attr,
 790                                  const char *buf, size_t count)
 791 {
 792         u32 flags, cmd, boot, awake, sleep, keyboard;
 793         int err;
 794
 795         if (sscanf(buf, "%d %d %d %d %d", &cmd, &boot, &awake, &sleep, &keyboard) != 5)
 796                 return -EINVAL;
 797
 798         if (cmd)
 799                 cmd = BIT(2);
 800
 801         flags = 0;
 802         if (boot)
 803                 flags |= BIT(1);
 804         if (awake)
 805                 flags |= BIT(3);
 806         if (sleep)
 807                 flags |= BIT(5);
 808         if (keyboard)
 809                 flags |= BIT(7);
 810
 811         /* 0xbd is the required default arg0 for the method. Nothing happens otherwise */
 812         err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS,
 813                         ASUS_WMI_DEVID_TUF_RGB_STATE, 0xbd | cmd << 8 | (flags << 16), 0, NULL);
 814         if (err)
 815                 return err;
 816
 817         return count;
 818 }
 819 static DEVICE_ATTR_WO(kbd_rgb_state);
 820
 821 static ssize_t kbd_rgb_state_index_show(struct device *device,
 822                                                  struct device_attribute *attr,
 823                                                  char *buf)
 824 {
 825         return sysfs_emit(buf, "%s\n", "cmd boot awake sleep keyboard");
 826 }
 827 static DEVICE_ATTR_RO(kbd_rgb_state_index);
 828
 829 static struct attribute *kbd_rgb_state_attrs[] = {
 830         &dev_attr_kbd_rgb_state.attr,
 831         &dev_attr_kbd_rgb_state_index.attr,
 832         NULL,
 833 };
 834
 835 static const struct attribute_group kbd_rgb_state_group = {
 836         .attrs = kbd_rgb_state_attrs,
 837 };
 838
 839 static const struct attribute_group *kbd_rgb_mode_groups[] = {
 840         NULL,
 841         NULL,
 842         NULL,
 843 };
 844
 845 /* Battery ********************************************************************/
 846
 847 /* The battery maximum charging percentage */
 848 static int charge_end_threshold;
 849
 850 static ssize_t charge_control_end_threshold_store(struct device *dev,
 851                                                   struct device_attribute *attr,
 852                                                   const char *buf, size_t count)
 853 {
 854         int value, ret, rv;
 855
 856         ret = kstrtouint(buf, 10, &value);
 857         if (ret)
 858                 return ret;
 859
 860         if (value < 0 || value > 100)
 861                 return -EINVAL;
 862
 863         ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_RSOC, value, &rv);
 864         if (ret)
 865                 return ret;
 866
 867         if (rv != 1)
 868                 return -EIO;
 869
 870         /* There isn't any method in the DSDT to read the threshold, so we
 871          * save the threshold.
 872          */
 873         charge_end_threshold = value;
 874         return count;
 875 }
 876
 877 static ssize_t charge_control_end_threshold_show(struct device *device,
 878                                                  struct device_attribute *attr,
 879                                                  char *buf)
 880 {
 881         return sysfs_emit(buf, "%d\n", charge_end_threshold);
 882 }
 883
 884 static DEVICE_ATTR_RW(charge_control_end_threshold);
 885
 886 static int asus_wmi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
 887 {
 888         /* The WMI method does not provide a way to specific a battery, so we
 889          * just assume it is the first battery.
 890          * Note: On some newer ASUS laptops (Zenbook UM431DA), the primary/first
 891          * battery is named BATT.
 892          */
 893         if (strcmp(battery->desc->name, "BAT0") != 0 &&
 894             strcmp(battery->desc->name, "BAT1") != 0 &&
 895             strcmp(battery->desc->name, "BATC") != 0 &&
 896             strcmp(battery->desc->name, "BATT") != 0)
 897                 return -ENODEV;
 898
 899         if (device_create_file(&battery->dev,
 900             &dev_attr_charge_control_end_threshold))
 901                 return -ENODEV;
 902
 903         /* The charge threshold is only reset when the system is power cycled,
 904          * and we can't get the current threshold so let set it to 100% when
 905          * a battery is added.
 906          */
 907         asus_wmi_set_devstate(ASUS_WMI_DEVID_RSOC, 100, NULL);
 908         charge_end_threshold = 100;
 909
 910         return 0;
 911 }
 912
 913 static int asus_wmi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
 914 {
 915         device_remove_file(&battery->dev,
 916                            &dev_attr_charge_control_end_threshold);
 917         return 0;
 918 }
 919
 920 static struct acpi_battery_hook battery_hook = {
 921         .add_battery = asus_wmi_battery_add,
 922         .remove_battery = asus_wmi_battery_remove,
 923         .name = "ASUS Battery Extension",
 924 };
 925
 926 static void asus_wmi_battery_init(struct asus_wmi *asus)
 927 {
 928         asus->battery_rsoc_available = false;
 929         if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_RSOC)) {
 930                 asus->battery_rsoc_available = true;
 931                 battery_hook_register(&battery_hook);
 932         }
 933 }
 934
 935 static void asus_wmi_battery_exit(struct asus_wmi *asus)
 936 {
 937         if (asus->battery_rsoc_available)
 938                 battery_hook_unregister(&battery_hook);
 939 }
 940
 941 /* LEDs ***********************************************************************/
 942
 943 /*
 944  * These functions actually update the LED's, and are called from a
 945  * workqueue. By doing this as separate work rather than when the LED
 946  * subsystem asks, we avoid messing with the Asus ACPI stuff during a
 947  * potentially bad time, such as a timer interrupt.
 948  */
 949 static void tpd_led_update(struct work_struct *work)
 950 {
 951         int ctrl_param;
 952         struct asus_wmi *asus;
 953
 954         asus = container_of(work, struct asus_wmi, tpd_led_work);
 955
 956         ctrl_param = asus->tpd_led_wk;
 957         asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
 958 }
 959
 960 static void tpd_led_set(struct led_classdev *led_cdev,
 961                         enum led_brightness value)
 962 {
 963         struct asus_wmi *asus;
 964
 965         asus = container_of(led_cdev, struct asus_wmi, tpd_led);
 966
 967         asus->tpd_led_wk = !!value;
 968         queue_work(asus->led_workqueue, &asus->tpd_led_work);
 969 }
 970
 971 static int read_tpd_led_state(struct asus_wmi *asus)
 972 {
 973         return asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_TOUCHPAD_LED);
 974 }
 975
 976 static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
 977 {
 978         struct asus_wmi *asus;
 979
 980         asus = container_of(led_cdev, struct asus_wmi, tpd_led);
 981
 982         return read_tpd_led_state(asus);
 983 }
 984
 985 static void kbd_led_update(struct asus_wmi *asus)
 986 {
 987         int ctrl_param = 0;
 988
 989         ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F);
 990         asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL);
 991 }
 992
 993 static int kbd_led_read(struct asus_wmi *asus, int *level, int *env)
 994 {
 995         int retval;
 996
 997         /*
 998          * bits 0-2: level
 999          * bit 7: light on/off
1000          * bit 8-10: environment (0: dark, 1: normal, 2: light)
1001          * bit 17: status unknown
1002          */
1003         retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT,
1004                                             0xFFFF);
1005
1006         /* Unknown status is considered as off */
1007         if (retval == 0x8000)
1008                 retval = 0;
1009
1010         if (retval < 0)
1011                 return retval;
1012
1013         if (level)
1014                 *level = retval & 0x7F;
1015         if (env)
1016                 *env = (retval >> 8) & 0x7F;
1017         return 0;
1018 }
1019
1020 static void do_kbd_led_set(struct led_classdev *led_cdev, int value)
1021 {
1022         struct asus_wmi *asus;
1023         int max_level;
1024
1025         asus = container_of(led_cdev, struct asus_wmi, kbd_led);
1026         max_level = asus->kbd_led.max_brightness;
1027
1028         asus->kbd_led_wk = clamp_val(value, 0, max_level);
1029         kbd_led_update(asus);
1030 }
1031
1032 static void kbd_led_set(struct led_classdev *led_cdev,
1033                         enum led_brightness value)
1034 {
1035         /* Prevent disabling keyboard backlight on module unregister */
1036         if (led_cdev->flags & LED_UNREGISTERING)
1037                 return;
1038
1039         do_kbd_led_set(led_cdev, value);
1040 }
1041
1042 static void kbd_led_set_by_kbd(struct asus_wmi *asus, enum led_brightness value)
1043 {
1044         struct led_classdev *led_cdev = &asus->kbd_led;
1045
1046         do_kbd_led_set(led_cdev, value);
1047         led_classdev_notify_brightness_hw_changed(led_cdev, asus->kbd_led_wk);
1048 }
1049
1050 static enum led_brightness kbd_led_get(struct led_classdev *led_cdev)
1051 {
1052         struct asus_wmi *asus;
1053         int retval, value;
1054
1055         asus = container_of(led_cdev, struct asus_wmi, kbd_led);
1056
1057         retval = kbd_led_read(asus, &value, NULL);
1058         if (retval < 0)
1059                 return retval;
1060
1061         return value;
1062 }
1063
1064 static int wlan_led_unknown_state(struct asus_wmi *asus)
1065 {
1066         u32 result;
1067
1068         asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
1069
1070         return result & ASUS_WMI_DSTS_UNKNOWN_BIT;
1071 }
1072
1073 static void wlan_led_update(struct work_struct *work)
1074 {
1075         int ctrl_param;
1076         struct asus_wmi *asus;
1077
1078         asus = container_of(work, struct asus_wmi, wlan_led_work);
1079
1080         ctrl_param = asus->wlan_led_wk;
1081         asus_wmi_set_devstate(ASUS_WMI_DEVID_WIRELESS_LED, ctrl_param, NULL);
1082 }
1083
1084 static void wlan_led_set(struct led_classdev *led_cdev,
1085                          enum led_brightness value)
1086 {
1087         struct asus_wmi *asus;
1088
1089         asus = container_of(led_cdev, struct asus_wmi, wlan_led);
1090
1091         asus->wlan_led_wk = !!value;
1092         queue_work(asus->led_workqueue, &asus->wlan_led_work);
1093 }
1094
1095 static enum led_brightness wlan_led_get(struct led_classdev *led_cdev)
1096 {
1097         struct asus_wmi *asus;
1098         u32 result;
1099
1100         asus = container_of(led_cdev, struct asus_wmi, wlan_led);
1101         asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
1102
1103         return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
1104 }
1105
1106 static void lightbar_led_update(struct work_struct *work)
1107 {
1108         struct asus_wmi *asus;
1109         int ctrl_param;
1110
1111         asus = container_of(work, struct asus_wmi, lightbar_led_work);
1112
1113         ctrl_param = asus->lightbar_led_wk;
1114         asus_wmi_set_devstate(ASUS_WMI_DEVID_LIGHTBAR, ctrl_param, NULL);
1115 }
1116
1117 static void lightbar_led_set(struct led_classdev *led_cdev,
1118                              enum led_brightness value)
1119 {
1120         struct asus_wmi *asus;
1121
1122         asus = container_of(led_cdev, struct asus_wmi, lightbar_led);
1123
1124         asus->lightbar_led_wk = !!value;
1125         queue_work(asus->led_workqueue, &asus->lightbar_led_work);
1126 }
1127
1128 static enum led_brightness lightbar_led_get(struct led_classdev *led_cdev)
1129 {
1130         struct asus_wmi *asus;
1131         u32 result;
1132
1133         asus = container_of(led_cdev, struct asus_wmi, lightbar_led);
1134         asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_LIGHTBAR, &result);
1135
1136         return result & ASUS_WMI_DSTS_LIGHTBAR_MASK;
1137 }
1138
1139 static int micmute_led_set(struct led_classdev *led_cdev,
1140                            enum led_brightness brightness)
1141 {
1142         int state = brightness != LED_OFF;
1143         int err;
1144
1145         err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MICMUTE_LED, state, NULL);
1146         return err < 0 ? err : 0;
1147 }
1148
1149 static void asus_wmi_led_exit(struct asus_wmi *asus)
1150 {
1151         led_classdev_unregister(&asus->kbd_led);
1152         led_classdev_unregister(&asus->tpd_led);
1153         led_classdev_unregister(&asus->wlan_led);
1154         led_classdev_unregister(&asus->lightbar_led);
1155         led_classdev_unregister(&asus->micmute_led);
1156
1157         if (asus->led_workqueue)
1158                 destroy_workqueue(asus->led_workqueue);
1159 }
1160
1161 static int asus_wmi_led_init(struct asus_wmi *asus)
1162 {
1163         int rv = 0, num_rgb_groups = 0, led_val;
1164
1165         if (asus->kbd_rgb_mode_available)
1166                 kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_mode_group;
1167         if (asus->kbd_rgb_state_available)
1168                 kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_state_group;
1169
1170         asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
1171         if (!asus->led_workqueue)
1172                 return -ENOMEM;
1173
1174         if (read_tpd_led_state(asus) >= 0) {
1175                 INIT_WORK(&asus->tpd_led_work, tpd_led_update);
1176
1177                 asus->tpd_led.name = "asus::touchpad";
1178                 asus->tpd_led.brightness_set = tpd_led_set;
1179                 asus->tpd_led.brightness_get = tpd_led_get;
1180                 asus->tpd_led.max_brightness = 1;
1181
1182                 rv = led_classdev_register(&asus->platform_device->dev,
1183                                            &asus->tpd_led);
1184                 if (rv)
1185                         goto error;
1186         }
1187
1188         if (!kbd_led_read(asus, &led_val, NULL)) {
1189                 asus->kbd_led_wk = led_val;
1190                 asus->kbd_led.name = "asus::kbd_backlight";
1191                 asus->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
1192                 asus->kbd_led.brightness_set = kbd_led_set;
1193                 asus->kbd_led.brightness_get = kbd_led_get;
1194                 asus->kbd_led.max_brightness = 3;
1195
1196                 if (num_rgb_groups != 0)
1197                         asus->kbd_led.groups = kbd_rgb_mode_groups;
1198
1199                 rv = led_classdev_register(&asus->platform_device->dev,
1200                                            &asus->kbd_led);
1201                 if (rv)
1202                         goto error;
1203         }
1204
1205         if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_WIRELESS_LED)
1206                         && (asus->driver->quirks->wapf > 0)) {
1207                 INIT_WORK(&asus->wlan_led_work, wlan_led_update);
1208
1209                 asus->wlan_led.name = "asus::wlan";
1210                 asus->wlan_led.brightness_set = wlan_led_set;
1211                 if (!wlan_led_unknown_state(asus))
1212                         asus->wlan_led.brightness_get = wlan_led_get;
1213                 asus->wlan_led.flags = LED_CORE_SUSPENDRESUME;
1214                 asus->wlan_led.max_brightness = 1;
1215                 asus->wlan_led.default_trigger = "asus-wlan";
1216
1217                 rv = led_classdev_register(&asus->platform_device->dev,
1218                                            &asus->wlan_led);
1219                 if (rv)
1220                         goto error;
1221         }
1222
1223         if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_LIGHTBAR)) {
1224                 INIT_WORK(&asus->lightbar_led_work, lightbar_led_update);
1225
1226                 asus->lightbar_led.name = "asus::lightbar";
1227                 asus->lightbar_led.brightness_set = lightbar_led_set;
1228                 asus->lightbar_led.brightness_get = lightbar_led_get;
1229                 asus->lightbar_led.max_brightness = 1;
1230
1231                 rv = led_classdev_register(&asus->platform_device->dev,
1232                                            &asus->lightbar_led);
1233         }
1234
1235         if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MICMUTE_LED)) {
1236                 asus->micmute_led.name = "platform::micmute";
1237                 asus->micmute_led.max_brightness = 1;
1238                 asus->micmute_led.brightness = ledtrig_audio_get(LED_AUDIO_MICMUTE);
1239                 asus->micmute_led.brightness_set_blocking = micmute_led_set;
1240                 asus->micmute_led.default_trigger = "audio-micmute";
1241
1242                 rv = led_classdev_register(&asus->platform_device->dev,
1243                                                 &asus->micmute_led);
1244                 if (rv)
1245                         goto error;
1246         }
1247
1248 error:
1249         if (rv)
1250                 asus_wmi_led_exit(asus);
1251
1252         return rv;
1253 }
1254
1255 /* RF *************************************************************************/
1256
1257 /*
1258  * PCI hotplug (for wlan rfkill)
1259  */
1260 static bool asus_wlan_rfkill_blocked(struct asus_wmi *asus)
1261 {
1262         int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
1263
1264         if (result < 0)
1265                 return false;
1266         return !result;
1267 }
1268
1269 static void asus_rfkill_hotplug(struct asus_wmi *asus)
1270 {
1271         struct pci_dev *dev;
1272         struct pci_bus *bus;
1273         bool blocked;
1274         bool absent;
1275         u32 l;
1276
1277         mutex_lock(&asus->wmi_lock);
1278         blocked = asus_wlan_rfkill_blocked(asus);
1279         mutex_unlock(&asus->wmi_lock);
1280
1281         mutex_lock(&asus->hotplug_lock);
1282         pci_lock_rescan_remove();
1283
1284         if (asus->wlan.rfkill)
1285                 rfkill_set_sw_state(asus->wlan.rfkill, blocked);
1286
1287         if (asus->hotplug_slot.ops) {
1288                 bus = pci_find_bus(0, 1);
1289                 if (!bus) {
1290                         pr_warn("Unable to find PCI bus 1?\n");
1291                         goto out_unlock;
1292                 }
1293
1294                 if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
1295                         pr_err("Unable to read PCI config space?\n");
1296                         goto out_unlock;
1297                 }
1298                 absent = (l == 0xffffffff);
1299
1300                 if (blocked != absent) {
1301                         pr_warn("BIOS says wireless lan is %s, but the pci device is %s\n",
1302                                 blocked ? "blocked" : "unblocked",
1303                                 absent ? "absent" : "present");
1304                         pr_warn("skipped wireless hotplug as probably inappropriate for this model\n");
1305                         goto out_unlock;
1306                 }
1307
1308                 if (!blocked) {
1309                         dev = pci_get_slot(bus, 0);
1310                         if (dev) {
1311                                 /* Device already present */
1312                                 pci_dev_put(dev);
1313                                 goto out_unlock;
1314                         }
1315                         dev = pci_scan_single_device(bus, 0);
1316                         if (dev) {
1317                                 pci_bus_assign_resources(bus);
1318                                 pci_bus_add_device(dev);
1319                         }
1320                 } else {
1321                         dev = pci_get_slot(bus, 0);
1322                         if (dev) {
1323                                 pci_stop_and_remove_bus_device(dev);
1324                                 pci_dev_put(dev);
1325                         }
1326                 }
1327         }
1328
1329 out_unlock:
1330         pci_unlock_rescan_remove();
1331         mutex_unlock(&asus->hotplug_lock);
1332 }
1333
1334 static void asus_rfkill_notify(acpi_handle handle, u32 event, void *data)
1335 {
1336         struct asus_wmi *asus = data;
1337
1338         if (event != ACPI_NOTIFY_BUS_CHECK)
1339                 return;
1340
1341         /*
1342          * We can't call directly asus_rfkill_hotplug because most
1343          * of the time WMBC is still being executed and not reetrant.
1344          * There is currently no way to tell ACPICA that  we want this
1345          * method to be serialized, we schedule a asus_rfkill_hotplug
1346          * call later, in a safer context.
1347          */
1348         queue_work(asus->hotplug_workqueue, &asus->hotplug_work);
1349 }
1350
1351 static int asus_register_rfkill_notifier(struct asus_wmi *asus, char *node)
1352 {
1353         acpi_status status;
1354         acpi_handle handle;
1355
1356         status = acpi_get_handle(NULL, node, &handle);
1357         if (ACPI_FAILURE(status))
1358                 return -ENODEV;
1359
1360         status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
1361                                              asus_rfkill_notify, asus);
1362         if (ACPI_FAILURE(status))
1363                 pr_warn("Failed to register notify on %s\n", node);
1364
1365         return 0;
1366 }
1367
1368 static void asus_unregister_rfkill_notifier(struct asus_wmi *asus, char *node)
1369 {
1370         acpi_status status = AE_OK;
1371         acpi_handle handle;
1372
1373         status = acpi_get_handle(NULL, node, &handle);
1374         if (ACPI_FAILURE(status))
1375                 return;
1376
1377         status = acpi_remove_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
1378                                             asus_rfkill_notify);
1379         if (ACPI_FAILURE(status))
1380                 pr_err("Error removing rfkill notify handler %s\n", node);
1381 }
1382
1383 static int asus_get_adapter_status(struct hotplug_slot *hotplug_slot,
1384                                    u8 *value)
1385 {
1386         struct asus_wmi *asus = container_of(hotplug_slot,
1387                                              struct asus_wmi, hotplug_slot);
1388         int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
1389
1390         if (result < 0)
1391                 return result;
1392
1393         *value = !!result;
1394         return 0;
1395 }
1396
1397 static const struct hotplug_slot_ops asus_hotplug_slot_ops = {
1398         .get_adapter_status = asus_get_adapter_status,
1399         .get_power_status = asus_get_adapter_status,
1400 };
1401
1402 static void asus_hotplug_work(struct work_struct *work)
1403 {
1404         struct asus_wmi *asus;
1405
1406         asus = container_of(work, struct asus_wmi, hotplug_work);
1407         asus_rfkill_hotplug(asus);
1408 }
1409
1410 static int asus_setup_pci_hotplug(struct asus_wmi *asus)
1411 {
1412         int ret = -ENOMEM;
1413         struct pci_bus *bus = pci_find_bus(0, 1);
1414
1415         if (!bus) {
1416                 pr_err("Unable to find wifi PCI bus\n");
1417                 return -ENODEV;
1418         }
1419
1420         asus->hotplug_workqueue =
1421             create_singlethread_workqueue("hotplug_workqueue");
1422         if (!asus->hotplug_workqueue)
1423                 goto error_workqueue;
1424
1425         INIT_WORK(&asus->hotplug_work, asus_hotplug_work);
1426
1427         asus->hotplug_slot.ops = &asus_hotplug_slot_ops;
1428
1429         ret = pci_hp_register(&asus->hotplug_slot, bus, 0, "asus-wifi");
1430         if (ret) {
1431                 pr_err("Unable to register hotplug slot - %d\n", ret);
1432                 goto error_register;
1433         }
1434
1435         return 0;
1436
1437 error_register:
1438         asus->hotplug_slot.ops = NULL;
1439         destroy_workqueue(asus->hotplug_workqueue);
1440 error_workqueue:
1441         return ret;
1442 }
1443
1444 /*
1445  * Rfkill devices
1446  */
1447 static int asus_rfkill_set(void *data, bool blocked)
1448 {
1449         struct asus_rfkill *priv = data;
1450         u32 ctrl_param = !blocked;
1451         u32 dev_id = priv->dev_id;
1452
1453         /*
1454          * If the user bit is set, BIOS can't set and record the wlan status,
1455          * it will report the value read from id ASUS_WMI_DEVID_WLAN_LED
1456          * while we query the wlan status through WMI(ASUS_WMI_DEVID_WLAN).
1457          * So, we have to record wlan status in id ASUS_WMI_DEVID_WLAN_LED
1458          * while setting the wlan status through WMI.
1459          * This is also the behavior that windows app will do.
1460          */
1461         if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
1462              priv->asus->driver->wlan_ctrl_by_user)
1463                 dev_id = ASUS_WMI_DEVID_WLAN_LED;
1464
1465         return asus_wmi_set_devstate(dev_id, ctrl_param, NULL);
1466 }
1467
1468 static void asus_rfkill_query(struct rfkill *rfkill, void *data)
1469 {
1470         struct asus_rfkill *priv = data;
1471         int result;
1472
1473         result = asus_wmi_get_devstate_simple(priv->asus, priv->dev_id);
1474
1475         if (result < 0)
1476                 return;
1477
1478         rfkill_set_sw_state(priv->rfkill, !result);
1479 }
1480
1481 static int asus_rfkill_wlan_set(void *data, bool blocked)
1482 {
1483         struct asus_rfkill *priv = data;
1484         struct asus_wmi *asus = priv->asus;
1485         int ret;
1486
1487         /*
1488          * This handler is enabled only if hotplug is enabled.
1489          * In this case, the asus_wmi_set_devstate() will
1490          * trigger a wmi notification and we need to wait
1491          * this call to finish before being able to call
1492          * any wmi method
1493          */
1494         mutex_lock(&asus->wmi_lock);
1495         ret = asus_rfkill_set(data, blocked);
1496         mutex_unlock(&asus->wmi_lock);
1497         return ret;
1498 }
1499
1500 static const struct rfkill_ops asus_rfkill_wlan_ops = {
1501         .set_block = asus_rfkill_wlan_set,
1502         .query = asus_rfkill_query,
1503 };
1504
1505 static const struct rfkill_ops asus_rfkill_ops = {
1506         .set_block = asus_rfkill_set,
1507         .query = asus_rfkill_query,
1508 };
1509
1510 static int asus_new_rfkill(struct asus_wmi *asus,
1511                            struct asus_rfkill *arfkill,
1512                            const char *name, enum rfkill_type type, int dev_id)
1513 {
1514         int result = asus_wmi_get_devstate_simple(asus, dev_id);
1515         struct rfkill **rfkill = &arfkill->rfkill;
1516
1517         if (result < 0)
1518                 return result;
1519
1520         arfkill->dev_id = dev_id;
1521         arfkill->asus = asus;
1522
1523         if (dev_id == ASUS_WMI_DEVID_WLAN &&
1524             asus->driver->quirks->hotplug_wireless)
1525                 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
1526                                        &asus_rfkill_wlan_ops, arfkill);
1527         else
1528                 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
1529                                        &asus_rfkill_ops, arfkill);
1530
1531         if (!*rfkill)
1532                 return -EINVAL;
1533
1534         if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
1535                         (asus->driver->quirks->wapf > 0))
1536                 rfkill_set_led_trigger_name(*rfkill, "asus-wlan");
1537
1538         rfkill_init_sw_state(*rfkill, !result);
1539         result = rfkill_register(*rfkill);
1540         if (result) {
1541                 rfkill_destroy(*rfkill);
1542                 *rfkill = NULL;
1543                 return result;
1544         }
1545         return 0;
1546 }
1547
1548 static void asus_wmi_rfkill_exit(struct asus_wmi *asus)
1549 {
1550         if (asus->driver->wlan_ctrl_by_user && ashs_present())
1551                 return;
1552
1553         asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
1554         asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
1555         asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
1556         if (asus->wlan.rfkill) {
1557                 rfkill_unregister(asus->wlan.rfkill);
1558                 rfkill_destroy(asus->wlan.rfkill);
1559                 asus->wlan.rfkill = NULL;
1560         }
1561         /*
1562          * Refresh pci hotplug in case the rfkill state was changed after
1563          * asus_unregister_rfkill_notifier()
1564          */
1565         asus_rfkill_hotplug(asus);
1566         if (asus->hotplug_slot.ops)
1567                 pci_hp_deregister(&asus->hotplug_slot);
1568         if (asus->hotplug_workqueue)
1569                 destroy_workqueue(asus->hotplug_workqueue);
1570
1571         if (asus->bluetooth.rfkill) {
1572                 rfkill_unregister(asus->bluetooth.rfkill);
1573                 rfkill_destroy(asus->bluetooth.rfkill);
1574                 asus->bluetooth.rfkill = NULL;
1575         }
1576         if (asus->wimax.rfkill) {
1577                 rfkill_unregister(asus->wimax.rfkill);
1578                 rfkill_destroy(asus->wimax.rfkill);
1579                 asus->wimax.rfkill = NULL;
1580         }
1581         if (asus->wwan3g.rfkill) {
1582                 rfkill_unregister(asus->wwan3g.rfkill);
1583                 rfkill_destroy(asus->wwan3g.rfkill);
1584                 asus->wwan3g.rfkill = NULL;
1585         }
1586         if (asus->gps.rfkill) {
1587                 rfkill_unregister(asus->gps.rfkill);
1588                 rfkill_destroy(asus->gps.rfkill);
1589                 asus->gps.rfkill = NULL;
1590         }
1591         if (asus->uwb.rfkill) {
1592                 rfkill_unregister(asus->uwb.rfkill);
1593                 rfkill_destroy(asus->uwb.rfkill);
1594                 asus->uwb.rfkill = NULL;
1595         }
1596 }
1597
1598 static int asus_wmi_rfkill_init(struct asus_wmi *asus)
1599 {
1600         int result = 0;
1601
1602         mutex_init(&asus->hotplug_lock);
1603         mutex_init(&asus->wmi_lock);
1604
1605         result = asus_new_rfkill(asus, &asus->wlan, "asus-wlan",
1606                                  RFKILL_TYPE_WLAN, ASUS_WMI_DEVID_WLAN);
1607
1608         if (result && result != -ENODEV)
1609                 goto exit;
1610
1611         result = asus_new_rfkill(asus, &asus->bluetooth,
1612                                  "asus-bluetooth", RFKILL_TYPE_BLUETOOTH,
1613                                  ASUS_WMI_DEVID_BLUETOOTH);
1614
1615         if (result && result != -ENODEV)
1616                 goto exit;
1617
1618         result = asus_new_rfkill(asus, &asus->wimax, "asus-wimax",
1619                                  RFKILL_TYPE_WIMAX, ASUS_WMI_DEVID_WIMAX);
1620
1621         if (result && result != -ENODEV)
1622                 goto exit;
1623
1624         result = asus_new_rfkill(asus, &asus->wwan3g, "asus-wwan3g",
1625                                  RFKILL_TYPE_WWAN, ASUS_WMI_DEVID_WWAN3G);
1626
1627         if (result && result != -ENODEV)
1628                 goto exit;
1629
1630         result = asus_new_rfkill(asus, &asus->gps, "asus-gps",
1631                                  RFKILL_TYPE_GPS, ASUS_WMI_DEVID_GPS);
1632
1633         if (result && result != -ENODEV)
1634                 goto exit;
1635
1636         result = asus_new_rfkill(asus, &asus->uwb, "asus-uwb",
1637                                  RFKILL_TYPE_UWB, ASUS_WMI_DEVID_UWB);
1638
1639         if (result && result != -ENODEV)
1640                 goto exit;
1641
1642         if (!asus->driver->quirks->hotplug_wireless)
1643                 goto exit;
1644
1645         result = asus_setup_pci_hotplug(asus);
1646         /*
1647          * If we get -EBUSY then something else is handling the PCI hotplug -
1648          * don't fail in this case
1649          */
1650         if (result == -EBUSY)
1651                 result = 0;
1652
1653         asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
1654         asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
1655         asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
1656         /*
1657          * Refresh pci hotplug in case the rfkill state was changed during
1658          * setup.
1659          */
1660         asus_rfkill_hotplug(asus);
1661
1662 exit:
1663         if (result && result != -ENODEV)
1664                 asus_wmi_rfkill_exit(asus);
1665
1666         if (result == -ENODEV)
1667                 result = 0;
1668
1669         return result;
1670 }
1671
1672 /* Panel Overdrive ************************************************************/
1673 static ssize_t panel_od_show(struct device *dev,
1674                                    struct device_attribute *attr, char *buf)
1675 {
1676         struct asus_wmi *asus = dev_get_drvdata(dev);
1677         int result;
1678
1679         result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_PANEL_OD);
1680         if (result < 0)
1681                 return result;
1682
1683         return sysfs_emit(buf, "%d\n", result);
1684 }
1685
1686 static ssize_t panel_od_store(struct device *dev,
1687                                     struct device_attribute *attr,
1688                                     const char *buf, size_t count)
1689 {
1690         int result, err;
1691         u32 overdrive;
1692
1693         struct asus_wmi *asus = dev_get_drvdata(dev);
1694
1695         result = kstrtou32(buf, 10, &overdrive);
1696         if (result)
1697                 return result;
1698
1699         if (overdrive > 1)
1700                 return -EINVAL;
1701
1702         err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PANEL_OD, overdrive, &result);
1703
1704         if (err) {
1705                 pr_warn("Failed to set panel overdrive: %d\n", err);
1706                 return err;
1707         }
1708
1709         if (result > 1) {
1710                 pr_warn("Failed to set panel overdrive (result): 0x%x\n", result);
1711                 return -EIO;
1712         }
1713
1714         sysfs_notify(&asus->platform_device->dev.kobj, NULL, "panel_od");
1715
1716         return count;
1717 }
1718 static DEVICE_ATTR_RW(panel_od);
1719
1720 /* Quirks *********************************************************************/
1721
1722 static void asus_wmi_set_xusb2pr(struct asus_wmi *asus)
1723 {
1724         struct pci_dev *xhci_pdev;
1725         u32 orig_ports_available;
1726         u32 ports_available = asus->driver->quirks->xusb2pr;
1727
1728         xhci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
1729                         PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI,
1730                         NULL);
1731
1732         if (!xhci_pdev)
1733                 return;
1734
1735         pci_read_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
1736                                 &orig_ports_available);
1737
1738         pci_write_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
1739                                 cpu_to_le32(ports_available));
1740
1741         pci_dev_put(xhci_pdev);
1742
1743         pr_info("set USB_INTEL_XUSB2PR old: 0x%04x, new: 0x%04x\n",
1744                         orig_ports_available, ports_available);
1745 }
1746
1747 /*
1748  * Some devices dont support or have borcken get_als method
1749  * but still support set method.
1750  */
1751 static void asus_wmi_set_als(void)
1752 {
1753         asus_wmi_set_devstate(ASUS_WMI_DEVID_ALS_ENABLE, 1, NULL);
1754 }
1755
1756 /* Hwmon device ***************************************************************/
1757
1758 static int asus_agfn_fan_speed_read(struct asus_wmi *asus, int fan,
1759                                           int *speed)
1760 {
1761         struct agfn_fan_args args = {
1762                 .agfn.len = sizeof(args),
1763                 .agfn.mfun = ASUS_FAN_MFUN,
1764                 .agfn.sfun = ASUS_FAN_SFUN_READ,
1765                 .fan = fan,
1766                 .speed = 0,
1767         };
1768         struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
1769         int status;
1770
1771         if (fan != 1)
1772                 return -EINVAL;
1773
1774         status = asus_wmi_evaluate_method_agfn(input);
1775
1776         if (status || args.agfn.err)
1777                 return -ENXIO;
1778
1779         if (speed)
1780                 *speed = args.speed;
1781
1782         return 0;
1783 }
1784
1785 static int asus_agfn_fan_speed_write(struct asus_wmi *asus, int fan,
1786                                      int *speed)
1787 {
1788         struct agfn_fan_args args = {
1789                 .agfn.len = sizeof(args),
1790                 .agfn.mfun = ASUS_FAN_MFUN,
1791                 .agfn.sfun = ASUS_FAN_SFUN_WRITE,
1792                 .fan = fan,
1793                 .speed = speed ?  *speed : 0,
1794         };
1795         struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
1796         int status;
1797
1798         /* 1: for setting 1st fan's speed 0: setting auto mode */
1799         if (fan != 1 && fan != 0)
1800                 return -EINVAL;
1801
1802         status = asus_wmi_evaluate_method_agfn(input);
1803
1804         if (status || args.agfn.err)
1805                 return -ENXIO;
1806
1807         if (speed && fan == 1)
1808                 asus->agfn_pwm = *speed;
1809
1810         return 0;
1811 }
1812
1813 /*
1814  * Check if we can read the speed of one fan. If true we assume we can also
1815  * control it.
1816  */
1817 static bool asus_wmi_has_agfn_fan(struct asus_wmi *asus)
1818 {
1819         int status;
1820         int speed;
1821         u32 value;
1822
1823         status = asus_agfn_fan_speed_read(asus, 1, &speed);
1824         if (status != 0)
1825                 return false;
1826
1827         status = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
1828         if (status != 0)
1829                 return false;
1830
1831         /*
1832          * We need to find a better way, probably using sfun,
1833          * bits or spec ...
1834          * Currently we disable it if:
1835          * - ASUS_WMI_UNSUPPORTED_METHOD is returned
1836          * - reverved bits are non-zero
1837          * - sfun and presence bit are not set
1838          */
1839         return !(value == ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000
1840                  || (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT)));
1841 }
1842
1843 static int asus_fan_set_auto(struct asus_wmi *asus)
1844 {
1845         int status;
1846         u32 retval;
1847
1848         switch (asus->fan_type) {
1849         case FAN_TYPE_SPEC83:
1850                 status = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL,
1851                                                0, &retval);
1852                 if (status)
1853                         return status;
1854
1855                 if (retval != 1)
1856                         return -EIO;
1857                 break;
1858
1859         case FAN_TYPE_AGFN:
1860                 status = asus_agfn_fan_speed_write(asus, 0, NULL);
1861                 if (status)
1862                         return -ENXIO;
1863                 break;
1864
1865         default:
1866                 return -ENXIO;
1867         }
1868
1869         /*
1870          * Modern models like the G713 also have GPU fan control (this is not AGFN)
1871          */
1872         if (asus->gpu_fan_type == FAN_TYPE_SPEC83) {
1873                 status = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
1874                                                0, &retval);
1875                 if (status)
1876                         return status;
1877
1878                 if (retval != 1)
1879                         return -EIO;
1880         }
1881
1882         return 0;
1883 }
1884
1885 static ssize_t pwm1_show(struct device *dev,
1886                                struct device_attribute *attr,
1887                                char *buf)
1888 {
1889         struct asus_wmi *asus = dev_get_drvdata(dev);
1890         int err;
1891         int value;
1892
1893         /* If we already set a value then just return it */
1894         if (asus->agfn_pwm >= 0)
1895                 return sprintf(buf, "%d\n", asus->agfn_pwm);
1896
1897         /*
1898          * If we haven't set already set a value through the AGFN interface,
1899          * we read a current value through the (now-deprecated) FAN_CTRL device.
1900          */
1901         err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
1902         if (err < 0)
1903                 return err;
1904
1905         value &= 0xFF;
1906
1907         if (value == 1) /* Low Speed */
1908                 value = 85;
1909         else if (value == 2)
1910                 value = 170;
1911         else if (value == 3)
1912                 value = 255;
1913         else if (value) {
1914                 pr_err("Unknown fan speed %#x\n", value);
1915                 value = -1;
1916         }
1917
1918         return sysfs_emit(buf, "%d\n", value);
1919 }
1920
1921 static ssize_t pwm1_store(struct device *dev,
1922                                      struct device_attribute *attr,
1923                                      const char *buf, size_t count) {
1924         struct asus_wmi *asus = dev_get_drvdata(dev);
1925         int value;
1926         int state;
1927         int ret;
1928
1929         ret = kstrtouint(buf, 10, &value);
1930         if (ret)
1931                 return ret;
1932
1933         value = clamp(value, 0, 255);
1934
1935         state = asus_agfn_fan_speed_write(asus, 1, &value);
1936         if (state)
1937                 pr_warn("Setting fan speed failed: %d\n", state);
1938         else
1939                 asus->fan_pwm_mode = ASUS_FAN_CTRL_MANUAL;
1940
1941         return count;
1942 }
1943
1944 static ssize_t fan1_input_show(struct device *dev,
1945                                         struct device_attribute *attr,
1946                                         char *buf)
1947 {
1948         struct asus_wmi *asus = dev_get_drvdata(dev);
1949         int value;
1950         int ret;
1951
1952         switch (asus->fan_type) {
1953         case FAN_TYPE_SPEC83:
1954                 ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL,
1955                                             &value);
1956                 if (ret < 0)
1957                         return ret;
1958
1959                 value &= 0xffff;
1960                 break;
1961
1962         case FAN_TYPE_AGFN:
1963                 /* no speed readable on manual mode */
1964                 if (asus->fan_pwm_mode == ASUS_FAN_CTRL_MANUAL)
1965                         return -ENXIO;
1966
1967                 ret = asus_agfn_fan_speed_read(asus, 1, &value);
1968                 if (ret) {
1969                         pr_warn("reading fan speed failed: %d\n", ret);
1970                         return -ENXIO;
1971                 }
1972                 break;
1973
1974         default:
1975                 return -ENXIO;
1976         }
1977
1978         return sysfs_emit(buf, "%d\n", value < 0 ? -1 : value * 100);
1979 }
1980
1981 static ssize_t pwm1_enable_show(struct device *dev,
1982                                                  struct device_attribute *attr,
1983                                                  char *buf)
1984 {
1985         struct asus_wmi *asus = dev_get_drvdata(dev);
1986
1987         /*
1988          * Just read back the cached pwm mode.
1989          *
1990          * For the CPU_FAN device, the spec indicates that we should be
1991          * able to read the device status and consult bit 19 to see if we
1992          * are in Full On or Automatic mode. However, this does not work
1993          * in practice on X532FL at least (the bit is always 0) and there's
1994          * also nothing in the DSDT to indicate that this behaviour exists.
1995          */
1996         return sysfs_emit(buf, "%d\n", asus->fan_pwm_mode);
1997 }
1998
1999 static ssize_t pwm1_enable_store(struct device *dev,
2000                                                   struct device_attribute *attr,
2001                                                   const char *buf, size_t count)
2002 {
2003         struct asus_wmi *asus = dev_get_drvdata(dev);
2004         int status = 0;
2005         int state;
2006         int value;
2007         int ret;
2008         u32 retval;
2009
2010         ret = kstrtouint(buf, 10, &state);
2011         if (ret)
2012                 return ret;
2013
2014         if (asus->fan_type == FAN_TYPE_SPEC83) {
2015                 switch (state) { /* standard documented hwmon values */
2016                 case ASUS_FAN_CTRL_FULLSPEED:
2017                         value = 1;
2018                         break;
2019                 case ASUS_FAN_CTRL_AUTO:
2020                         value = 0;
2021                         break;
2022                 default:
2023                         return -EINVAL;
2024                 }
2025
2026                 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL,
2027                                             value, &retval);
2028                 if (ret)
2029                         return ret;
2030
2031                 if (retval != 1)
2032                         return -EIO;
2033         } else if (asus->fan_type == FAN_TYPE_AGFN) {
2034                 switch (state) {
2035                 case ASUS_FAN_CTRL_MANUAL:
2036                         break;
2037
2038                 case ASUS_FAN_CTRL_AUTO:
2039                         status = asus_fan_set_auto(asus);
2040                         if (status)
2041                                 return status;
2042                         break;
2043
2044                 default:
2045                         return -EINVAL;
2046                 }
2047         }
2048
2049         asus->fan_pwm_mode = state;
2050
2051         /* Must set to disabled if mode is toggled */
2052         if (asus->cpu_fan_curve_available)
2053                 asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false;
2054         if (asus->gpu_fan_curve_available)
2055                 asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false;
2056
2057         return count;
2058 }
2059
2060 static ssize_t fan1_label_show(struct device *dev,
2061                                           struct device_attribute *attr,
2062                                           char *buf)
2063 {
2064         return sysfs_emit(buf, "%s\n", ASUS_FAN_DESC);
2065 }
2066
2067 static ssize_t asus_hwmon_temp1(struct device *dev,
2068                                 struct device_attribute *attr,
2069                                 char *buf)
2070 {
2071         struct asus_wmi *asus = dev_get_drvdata(dev);
2072         u32 value;
2073         int err;
2074
2075         err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_THERMAL_CTRL, &value);
2076         if (err < 0)
2077                 return err;
2078
2079         return sprintf(buf, "%ld\n",
2080                        deci_kelvin_to_millicelsius(value & 0xFFFF));
2081 }
2082
2083 /* GPU fan on modern ROG laptops */
2084 static ssize_t fan2_input_show(struct device *dev,
2085                                         struct device_attribute *attr,
2086                                         char *buf)
2087 {
2088         struct asus_wmi *asus = dev_get_drvdata(dev);
2089         int value;
2090         int ret;
2091
2092         ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL, &value);
2093         if (ret < 0)
2094                 return ret;
2095
2096         value &= 0xffff;
2097
2098         return sysfs_emit(buf, "%d\n", value * 100);
2099 }
2100
2101 static ssize_t fan2_label_show(struct device *dev,
2102                                           struct device_attribute *attr,
2103                                           char *buf)
2104 {
2105         return sysfs_emit(buf, "%s\n", ASUS_GPU_FAN_DESC);
2106 }
2107
2108 static ssize_t pwm2_enable_show(struct device *dev,
2109                                 struct device_attribute *attr,
2110                                 char *buf)
2111 {
2112         struct asus_wmi *asus = dev_get_drvdata(dev);
2113
2114         return sysfs_emit(buf, "%d\n", asus->gpu_fan_pwm_mode);
2115 }
2116
2117 static ssize_t pwm2_enable_store(struct device *dev,
2118                                  struct device_attribute *attr,
2119                                  const char *buf, size_t count)
2120 {
2121         struct asus_wmi *asus = dev_get_drvdata(dev);
2122         int state;
2123         int value;
2124         int ret;
2125         u32 retval;
2126
2127         ret = kstrtouint(buf, 10, &state);
2128         if (ret)
2129                 return ret;
2130
2131         switch (state) { /* standard documented hwmon values */
2132         case ASUS_FAN_CTRL_FULLSPEED:
2133                 value = 1;
2134                 break;
2135         case ASUS_FAN_CTRL_AUTO:
2136                 value = 0;
2137                 break;
2138         default:
2139                 return -EINVAL;
2140         }
2141
2142         ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
2143                                     value, &retval);
2144         if (ret)
2145                 return ret;
2146
2147         if (retval != 1)
2148                 return -EIO;
2149
2150         asus->gpu_fan_pwm_mode = state;
2151         return count;
2152 }
2153
2154 /* Fan1 */
2155 static DEVICE_ATTR_RW(pwm1);
2156 static DEVICE_ATTR_RW(pwm1_enable);
2157 static DEVICE_ATTR_RO(fan1_input);
2158 static DEVICE_ATTR_RO(fan1_label);
2159 /* Fan2 - GPU fan */
2160 static DEVICE_ATTR_RW(pwm2_enable);
2161 static DEVICE_ATTR_RO(fan2_input);
2162 static DEVICE_ATTR_RO(fan2_label);
2163
2164 /* Temperature */
2165 static DEVICE_ATTR(temp1_input, S_IRUGO, asus_hwmon_temp1, NULL);
2166
2167 static struct attribute *hwmon_attributes[] = {
2168         &dev_attr_pwm1.attr,
2169         &dev_attr_pwm1_enable.attr,
2170         &dev_attr_pwm2_enable.attr,
2171         &dev_attr_fan1_input.attr,
2172         &dev_attr_fan1_label.attr,
2173         &dev_attr_fan2_input.attr,
2174         &dev_attr_fan2_label.attr,
2175
2176         &dev_attr_temp1_input.attr,
2177         NULL
2178 };
2179
2180 static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
2181                                           struct attribute *attr, int idx)
2182 {
2183         struct device *dev = kobj_to_dev(kobj);
2184         struct asus_wmi *asus = dev_get_drvdata(dev->parent);
2185         u32 value = ASUS_WMI_UNSUPPORTED_METHOD;
2186
2187         if (attr == &dev_attr_pwm1.attr) {
2188                 if (asus->fan_type != FAN_TYPE_AGFN)
2189                         return 0;
2190         } else if (attr == &dev_attr_fan1_input.attr
2191             || attr == &dev_attr_fan1_label.attr
2192             || attr == &dev_attr_pwm1_enable.attr) {
2193                 if (asus->fan_type == FAN_TYPE_NONE)
2194                         return 0;
2195         } else if (attr == &dev_attr_fan2_input.attr
2196             || attr == &dev_attr_fan2_label.attr
2197             || attr == &dev_attr_pwm2_enable.attr) {
2198                 if (asus->gpu_fan_type == FAN_TYPE_NONE)
2199                         return 0;
2200         } else if (attr == &dev_attr_temp1_input.attr) {
2201                 int err = asus_wmi_get_devstate(asus,
2202                                                 ASUS_WMI_DEVID_THERMAL_CTRL,
2203                                                 &value);
2204
2205                 if (err < 0)
2206                         return 0; /* can't return negative here */
2207
2208                 /*
2209                  * If the temperature value in deci-Kelvin is near the absolute
2210                  * zero temperature, something is clearly wrong
2211                  */
2212                 if (value == 0 || value == 1)
2213                         return 0;
2214         }
2215
2216         return attr->mode;
2217 }
2218
2219 static const struct attribute_group hwmon_attribute_group = {
2220         .is_visible = asus_hwmon_sysfs_is_visible,
2221         .attrs = hwmon_attributes
2222 };
2223 __ATTRIBUTE_GROUPS(hwmon_attribute);
2224
2225 static int asus_wmi_hwmon_init(struct asus_wmi *asus)
2226 {
2227         struct device *dev = &asus->platform_device->dev;
2228         struct device *hwmon;
2229
2230         hwmon = devm_hwmon_device_register_with_groups(dev, "asus", asus,
2231                         hwmon_attribute_groups);
2232
2233         if (IS_ERR(hwmon)) {
2234                 pr_err("Could not register asus hwmon device\n");
2235                 return PTR_ERR(hwmon);
2236         }
2237         return 0;
2238 }
2239
2240 static int asus_wmi_fan_init(struct asus_wmi *asus)
2241 {
2242         asus->gpu_fan_type = FAN_TYPE_NONE;
2243         asus->fan_type = FAN_TYPE_NONE;
2244         asus->agfn_pwm = -1;
2245
2246         if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL))
2247                 asus->fan_type = FAN_TYPE_SPEC83;
2248         else if (asus_wmi_has_agfn_fan(asus))
2249                 asus->fan_type = FAN_TYPE_AGFN;
2250
2251         /*  Modern models like G713 also have GPU fan control */
2252         if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL))
2253                 asus->gpu_fan_type = FAN_TYPE_SPEC83;
2254
2255         if (asus->fan_type == FAN_TYPE_NONE)
2256                 return -ENODEV;
2257
2258         asus_fan_set_auto(asus);
2259         asus->fan_pwm_mode = ASUS_FAN_CTRL_AUTO;
2260         return 0;
2261 }
2262
2263 /* Fan mode *******************************************************************/
2264
2265 static int fan_boost_mode_check_present(struct asus_wmi *asus)
2266 {
2267         u32 result;
2268         int err;
2269
2270         asus->fan_boost_mode_available = false;
2271
2272         err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_BOOST_MODE,
2273                                     &result);
2274         if (err) {
2275                 if (err == -ENODEV)
2276                         return 0;
2277                 else
2278                         return err;
2279         }
2280
2281         if ((result & ASUS_WMI_DSTS_PRESENCE_BIT) &&
2282                         (result & ASUS_FAN_BOOST_MODES_MASK)) {
2283                 asus->fan_boost_mode_available = true;
2284                 asus->fan_boost_mode_mask = result & ASUS_FAN_BOOST_MODES_MASK;
2285         }
2286
2287         return 0;
2288 }
2289
2290 static int fan_boost_mode_write(struct asus_wmi *asus)
2291 {
2292         u32 retval;
2293         u8 value;
2294         int err;
2295
2296         value = asus->fan_boost_mode;
2297
2298         pr_info("Set fan boost mode: %u\n", value);
2299         err = asus_wmi_set_devstate(ASUS_WMI_DEVID_FAN_BOOST_MODE, value,
2300                                     &retval);
2301
2302         sysfs_notify(&asus->platform_device->dev.kobj, NULL,
2303                         "fan_boost_mode");
2304
2305         if (err) {
2306                 pr_warn("Failed to set fan boost mode: %d\n", err);
2307                 return err;
2308         }
2309
2310         if (retval != 1) {
2311                 pr_warn("Failed to set fan boost mode (retval): 0x%x\n",
2312                         retval);
2313                 return -EIO;
2314         }
2315
2316         return 0;
2317 }
2318
2319 static int fan_boost_mode_switch_next(struct asus_wmi *asus)
2320 {
2321         u8 mask = asus->fan_boost_mode_mask;
2322
2323         if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_NORMAL) {
2324                 if (mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK)
2325                         asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_OVERBOOST;
2326                 else if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK)
2327                         asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT;
2328         } else if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) {
2329                 if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK)
2330                         asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT;
2331                 else
2332                         asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL;
2333         } else {
2334                 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL;
2335         }
2336
2337         return fan_boost_mode_write(asus);
2338 }
2339
2340 static ssize_t fan_boost_mode_show(struct device *dev,
2341                                    struct device_attribute *attr, char *buf)
2342 {
2343         struct asus_wmi *asus = dev_get_drvdata(dev);
2344
2345         return sysfs_emit(buf, "%d\n", asus->fan_boost_mode);
2346 }
2347
2348 static ssize_t fan_boost_mode_store(struct device *dev,
2349                                     struct device_attribute *attr,
2350                                     const char *buf, size_t count)
2351 {
2352         struct asus_wmi *asus = dev_get_drvdata(dev);
2353         u8 mask = asus->fan_boost_mode_mask;
2354         u8 new_mode;
2355         int result;
2356
2357         result = kstrtou8(buf, 10, &new_mode);
2358         if (result < 0) {
2359                 pr_warn("Trying to store invalid value\n");
2360                 return result;
2361         }
2362
2363         if (new_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) {
2364                 if (!(mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK))
2365                         return -EINVAL;
2366         } else if (new_mode == ASUS_FAN_BOOST_MODE_SILENT) {
2367                 if (!(mask & ASUS_FAN_BOOST_MODE_SILENT_MASK))
2368                         return -EINVAL;
2369         } else if (new_mode != ASUS_FAN_BOOST_MODE_NORMAL) {
2370                 return -EINVAL;
2371         }
2372
2373         asus->fan_boost_mode = new_mode;
2374         fan_boost_mode_write(asus);
2375
2376         return count;
2377 }
2378
2379 // Fan boost mode: 0 - normal, 1 - overboost, 2 - silent
2380 static DEVICE_ATTR_RW(fan_boost_mode);
2381
2382 /* Custom fan curves **********************************************************/
2383
2384 static void fan_curve_copy_from_buf(struct fan_curve_data *data, u8 *buf)
2385 {
2386         int i;
2387
2388         for (i = 0; i < FAN_CURVE_POINTS; i++) {
2389                 data->temps[i] = buf[i];
2390         }
2391
2392         for (i = 0; i < FAN_CURVE_POINTS; i++) {
2393                 data->percents[i] =
2394                         255 * buf[i + FAN_CURVE_POINTS] / 100;
2395         }
2396 }
2397
2398 static int fan_curve_get_factory_default(struct asus_wmi *asus, u32 fan_dev)
2399 {
2400         struct fan_curve_data *curves;
2401         u8 buf[FAN_CURVE_BUF_LEN];
2402         int fan_idx = 0;
2403         u8 mode = 0;
2404         int err;
2405
2406         if (asus->throttle_thermal_policy_available)
2407                 mode = asus->throttle_thermal_policy_mode;
2408         /* DEVID_<C/G>PU_FAN_CURVE is switched for OVERBOOST vs SILENT */
2409         if (mode == 2)
2410                 mode = 1;
2411         else if (mode == 1)
2412                 mode = 2;
2413
2414         if (fan_dev == ASUS_WMI_DEVID_GPU_FAN_CURVE)
2415                 fan_idx = FAN_CURVE_DEV_GPU;
2416
2417         curves = &asus->custom_fan_curves[fan_idx];
2418         err = asus_wmi_evaluate_method_buf(asus->dsts_id, fan_dev, mode, buf,
2419                                            FAN_CURVE_BUF_LEN);
2420         if (err) {
2421                 pr_warn("%s (0x%08x) failed: %d\n", __func__, fan_dev, err);
2422                 return err;
2423         }
2424
2425         fan_curve_copy_from_buf(curves, buf);
2426         curves->device_id = fan_dev;
2427
2428         return 0;
2429 }
2430
2431 /* Check if capability exists, and populate defaults */
2432 static int fan_curve_check_present(struct asus_wmi *asus, bool *available,
2433                                    u32 fan_dev)
2434 {
2435         int err;
2436
2437         *available = false;
2438
2439         err = fan_curve_get_factory_default(asus, fan_dev);
2440         if (err) {
2441                 return 0;
2442         }
2443
2444         *available = true;
2445         return 0;
2446 }
2447
2448 /* Determine which fan the attribute is for if SENSOR_ATTR */
2449 static struct fan_curve_data *fan_curve_attr_select(struct asus_wmi *asus,
2450                                               struct device_attribute *attr)
2451 {
2452         int index = to_sensor_dev_attr(attr)->index;
2453
2454         return &asus->custom_fan_curves[index & FAN_CURVE_DEV_GPU];
2455 }
2456
2457 /* Determine which fan the attribute is for if SENSOR_ATTR_2 */
2458 static struct fan_curve_data *fan_curve_attr_2_select(struct asus_wmi *asus,
2459                                             struct device_attribute *attr)
2460 {
2461         int nr = to_sensor_dev_attr_2(attr)->nr;
2462
2463         return &asus->custom_fan_curves[nr & FAN_CURVE_DEV_GPU];
2464 }
2465
2466 static ssize_t fan_curve_show(struct device *dev,
2467                               struct device_attribute *attr, char *buf)
2468 {
2469         struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr);
2470         struct asus_wmi *asus = dev_get_drvdata(dev);
2471         struct fan_curve_data *data;
2472         int value, index, nr;
2473
2474         data = fan_curve_attr_2_select(asus, attr);
2475         index = dev_attr->index;
2476         nr = dev_attr->nr;
2477
2478         if (nr & FAN_CURVE_PWM_MASK)
2479                 value = data->percents[index];
2480         else
2481                 value = data->temps[index];
2482
2483         return sysfs_emit(buf, "%d\n", value);
2484 }
2485
2486 /*
2487  * "fan_dev" is the related WMI method such as ASUS_WMI_DEVID_CPU_FAN_CURVE.
2488  */
2489 static int fan_curve_write(struct asus_wmi *asus,
2490                            struct fan_curve_data *data)
2491 {
2492         u32 arg1 = 0, arg2 = 0, arg3 = 0, arg4 = 0;
2493         u8 *percents = data->percents;
2494         u8 *temps = data->temps;
2495         int ret, i, shift = 0;
2496
2497         if (!data->enabled)
2498                 return 0;
2499
2500         for (i = 0; i < FAN_CURVE_POINTS / 2; i++) {
2501                 arg1 += (temps[i]) << shift;
2502                 arg2 += (temps[i + 4]) << shift;
2503                 /* Scale to percentage for device */
2504                 arg3 += (100 * percents[i] / 255) << shift;
2505                 arg4 += (100 * percents[i + 4] / 255) << shift;
2506                 shift += 8;
2507         }
2508
2509         return asus_wmi_evaluate_method5(ASUS_WMI_METHODID_DEVS,
2510                                          data->device_id,
2511                                          arg1, arg2, arg3, arg4, &ret);
2512 }
2513
2514 static ssize_t fan_curve_store(struct device *dev,
2515                                struct device_attribute *attr, const char *buf,
2516                                size_t count)
2517 {
2518         struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr);
2519         struct asus_wmi *asus = dev_get_drvdata(dev);
2520         struct fan_curve_data *data;
2521         u8 value;
2522         int err;
2523
2524         int pwm = dev_attr->nr & FAN_CURVE_PWM_MASK;
2525         int index = dev_attr->index;
2526
2527         data = fan_curve_attr_2_select(asus, attr);
2528
2529         err = kstrtou8(buf, 10, &value);
2530         if (err < 0)
2531                 return err;
2532
2533         if (pwm) {
2534                 data->percents[index] = value;
2535         } else {
2536                 data->temps[index] = value;
2537         }
2538
2539         /*
2540          * Mark as disabled so the user has to explicitly enable to apply a
2541          * changed fan curve. This prevents potential lockups from writing out
2542          * many changes as one-write-per-change.
2543          */
2544         data->enabled = false;
2545
2546         return count;
2547 }
2548
2549 static ssize_t fan_curve_enable_show(struct device *dev,
2550                                      struct device_attribute *attr, char *buf)
2551 {
2552         struct asus_wmi *asus = dev_get_drvdata(dev);
2553         struct fan_curve_data *data;
2554         int out = 2;
2555
2556         data = fan_curve_attr_select(asus, attr);
2557
2558         if (data->enabled)
2559                 out = 1;
2560
2561         return sysfs_emit(buf, "%d\n", out);
2562 }
2563
2564 static ssize_t fan_curve_enable_store(struct device *dev,
2565                                       struct device_attribute *attr,
2566                                       const char *buf, size_t count)
2567 {
2568         struct asus_wmi *asus = dev_get_drvdata(dev);
2569         struct fan_curve_data *data;
2570         int value, err;
2571
2572         data = fan_curve_attr_select(asus, attr);
2573
2574         err = kstrtoint(buf, 10, &value);
2575         if (err < 0)
2576                 return err;
2577
2578         switch (value) {
2579         case 1:
2580                 data->enabled = true;
2581                 break;
2582         case 2:
2583                 data->enabled = false;
2584                 break;
2585         /*
2586          * Auto + reset the fan curve data to defaults. Make it an explicit
2587          * option so that users don't accidentally overwrite a set fan curve.
2588          */
2589         case 3:
2590                 err = fan_curve_get_factory_default(asus, data->device_id);
2591                 if (err)
2592                         return err;
2593                 data->enabled = false;
2594                 break;
2595         default:
2596                 return -EINVAL;
2597         }
2598
2599         if (data->enabled) {
2600                 err = fan_curve_write(asus, data);
2601                 if (err)
2602                         return err;
2603         } else {
2604                 /*
2605                  * For machines with throttle this is the only way to reset fans
2606                  * to default mode of operation (does not erase curve data).
2607                  */
2608                 if (asus->throttle_thermal_policy_available) {
2609                         err = throttle_thermal_policy_write(asus);
2610                         if (err)
2611                                 return err;
2612                 /* Similar is true for laptops with this fan */
2613                 } else if (asus->fan_type == FAN_TYPE_SPEC83) {
2614                         err = asus_fan_set_auto(asus);
2615                         if (err)
2616                                 return err;
2617                 } else {
2618                         /* Safeguard against fautly ACPI tables */
2619                         err = fan_curve_get_factory_default(asus, data->device_id);
2620                         if (err)
2621                                 return err;
2622                         err = fan_curve_write(asus, data);
2623                         if (err)
2624                                 return err;
2625                 }
2626         }
2627         return count;
2628 }
2629
2630 /* CPU */
2631 static SENSOR_DEVICE_ATTR_RW(pwm1_enable, fan_curve_enable, FAN_CURVE_DEV_CPU);
2632 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_temp, fan_curve,
2633                                FAN_CURVE_DEV_CPU, 0);
2634 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_temp, fan_curve,
2635                                FAN_CURVE_DEV_CPU, 1);
2636 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_temp, fan_curve,
2637                                FAN_CURVE_DEV_CPU, 2);
2638 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_temp, fan_curve,
2639                                FAN_CURVE_DEV_CPU, 3);
2640 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_temp, fan_curve,
2641                                FAN_CURVE_DEV_CPU, 4);
2642 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_temp, fan_curve,
2643                                FAN_CURVE_DEV_CPU, 5);
2644 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_temp, fan_curve,
2645                                FAN_CURVE_DEV_CPU, 6);
2646 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_temp, fan_curve,
2647                                FAN_CURVE_DEV_CPU, 7);
2648
2649 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_pwm, fan_curve,
2650                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 0);
2651 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_pwm, fan_curve,
2652                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 1);
2653 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_pwm, fan_curve,
2654                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 2);
2655 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_pwm, fan_curve,
2656                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 3);
2657 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_pwm, fan_curve,
2658                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 4);
2659 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_pwm, fan_curve,
2660                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 5);
2661 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_pwm, fan_curve,
2662                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 6);
2663 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_pwm, fan_curve,
2664                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 7);
2665
2666 /* GPU */
2667 static SENSOR_DEVICE_ATTR_RW(pwm2_enable, fan_curve_enable, FAN_CURVE_DEV_GPU);
2668 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_temp, fan_curve,
2669                                FAN_CURVE_DEV_GPU, 0);
2670 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_temp, fan_curve,
2671                                FAN_CURVE_DEV_GPU, 1);
2672 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_temp, fan_curve,
2673                                FAN_CURVE_DEV_GPU, 2);
2674 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_temp, fan_curve,
2675                                FAN_CURVE_DEV_GPU, 3);
2676 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_temp, fan_curve,
2677                                FAN_CURVE_DEV_GPU, 4);
2678 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_temp, fan_curve,
2679                                FAN_CURVE_DEV_GPU, 5);
2680 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_temp, fan_curve,
2681                                FAN_CURVE_DEV_GPU, 6);
2682 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_temp, fan_curve,
2683                                FAN_CURVE_DEV_GPU, 7);
2684
2685 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_pwm, fan_curve,
2686                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 0);
2687 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_pwm, fan_curve,
2688                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 1);
2689 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_pwm, fan_curve,
2690                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 2);
2691 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_pwm, fan_curve,
2692                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 3);
2693 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_pwm, fan_curve,
2694                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 4);
2695 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_pwm, fan_curve,
2696                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 5);
2697 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_pwm, fan_curve,
2698                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 6);
2699 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_pwm, fan_curve,
2700                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 7);
2701
2702 static struct attribute *asus_fan_curve_attr[] = {
2703         /* CPU */
2704         &sensor_dev_attr_pwm1_enable.dev_attr.attr,
2705         &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
2706         &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
2707         &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
2708         &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
2709         &sensor_dev_attr_pwm1_auto_point5_temp.dev_attr.attr,
2710         &sensor_dev_attr_pwm1_auto_point6_temp.dev_attr.attr,
2711         &sensor_dev_attr_pwm1_auto_point7_temp.dev_attr.attr,
2712         &sensor_dev_attr_pwm1_auto_point8_temp.dev_attr.attr,
2713         &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
2714         &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
2715         &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
2716         &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
2717         &sensor_dev_attr_pwm1_auto_point5_pwm.dev_attr.attr,
2718         &sensor_dev_attr_pwm1_auto_point6_pwm.dev_attr.attr,
2719         &sensor_dev_attr_pwm1_auto_point7_pwm.dev_attr.attr,
2720         &sensor_dev_attr_pwm1_auto_point8_pwm.dev_attr.attr,
2721         /* GPU */
2722         &sensor_dev_attr_pwm2_enable.dev_attr.attr,
2723         &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
2724         &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
2725         &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
2726         &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
2727         &sensor_dev_attr_pwm2_auto_point5_temp.dev_attr.attr,
2728         &sensor_dev_attr_pwm2_auto_point6_temp.dev_attr.attr,
2729         &sensor_dev_attr_pwm2_auto_point7_temp.dev_attr.attr,
2730         &sensor_dev_attr_pwm2_auto_point8_temp.dev_attr.attr,
2731         &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
2732         &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
2733         &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
2734         &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,
2735         &sensor_dev_attr_pwm2_auto_point5_pwm.dev_attr.attr,
2736         &sensor_dev_attr_pwm2_auto_point6_pwm.dev_attr.attr,
2737         &sensor_dev_attr_pwm2_auto_point7_pwm.dev_attr.attr,
2738         &sensor_dev_attr_pwm2_auto_point8_pwm.dev_attr.attr,
2739         NULL
2740 };
2741
2742 static umode_t asus_fan_curve_is_visible(struct kobject *kobj,
2743                                          struct attribute *attr, int idx)
2744 {
2745         struct device *dev = kobj_to_dev(kobj);
2746         struct asus_wmi *asus = dev_get_drvdata(dev->parent);
2747
2748         /*
2749          * Check the char instead of casting attr as there are two attr types
2750          * involved here (attr1 and attr2)
2751          */
2752         if (asus->cpu_fan_curve_available && attr->name[3] == '1')
2753                 return 0644;
2754
2755         if (asus->gpu_fan_curve_available && attr->name[3] == '2')
2756                 return 0644;
2757
2758         return 0;
2759 }
2760
2761 static const struct attribute_group asus_fan_curve_attr_group = {
2762         .is_visible = asus_fan_curve_is_visible,
2763         .attrs = asus_fan_curve_attr,
2764 };
2765 __ATTRIBUTE_GROUPS(asus_fan_curve_attr);
2766
2767 /*
2768  * Must be initialised after throttle_thermal_policy_check_present() as
2769  * we check the status of throttle_thermal_policy_available during init.
2770  */
2771 static int asus_wmi_custom_fan_curve_init(struct asus_wmi *asus)
2772 {
2773         struct device *dev = &asus->platform_device->dev;
2774         struct device *hwmon;
2775         int err;
2776
2777         err = fan_curve_check_present(asus, &asus->cpu_fan_curve_available,
2778                                       ASUS_WMI_DEVID_CPU_FAN_CURVE);
2779         if (err)
2780                 return err;
2781
2782         err = fan_curve_check_present(asus, &asus->gpu_fan_curve_available,
2783                                       ASUS_WMI_DEVID_GPU_FAN_CURVE);
2784         if (err)
2785                 return err;
2786
2787         if (!asus->cpu_fan_curve_available && !asus->gpu_fan_curve_available)
2788                 return 0;
2789
2790         hwmon = devm_hwmon_device_register_with_groups(
2791                 dev, "asus_custom_fan_curve", asus, asus_fan_curve_attr_groups);
2792
2793         if (IS_ERR(hwmon)) {
2794                 dev_err(dev,
2795                         "Could not register asus_custom_fan_curve device\n");
2796                 return PTR_ERR(hwmon);
2797         }
2798
2799         return 0;
2800 }
2801
2802 /* Throttle thermal policy ****************************************************/
2803
2804 static int throttle_thermal_policy_check_present(struct asus_wmi *asus)
2805 {
2806         u32 result;
2807         int err;
2808
2809         asus->throttle_thermal_policy_available = false;
2810
2811         err = asus_wmi_get_devstate(asus,
2812                                     ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY,
2813                                     &result);
2814         if (err) {
2815                 if (err == -ENODEV)
2816                         return 0;
2817                 return err;
2818         }
2819
2820         if (result & ASUS_WMI_DSTS_PRESENCE_BIT)
2821                 asus->throttle_thermal_policy_available = true;
2822
2823         return 0;
2824 }
2825
2826 static int throttle_thermal_policy_write(struct asus_wmi *asus)
2827 {
2828         int err;
2829         u8 value;
2830         u32 retval;
2831
2832         value = asus->throttle_thermal_policy_mode;
2833
2834         err = asus_wmi_set_devstate(ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY,
2835                                     value, &retval);
2836
2837         sysfs_notify(&asus->platform_device->dev.kobj, NULL,
2838                         "throttle_thermal_policy");
2839
2840         if (err) {
2841                 pr_warn("Failed to set throttle thermal policy: %d\n", err);
2842                 return err;
2843         }
2844
2845         if (retval != 1) {
2846                 pr_warn("Failed to set throttle thermal policy (retval): 0x%x\n",
2847                         retval);
2848                 return -EIO;
2849         }
2850
2851         /* Must set to disabled if mode is toggled */
2852         if (asus->cpu_fan_curve_available)
2853                 asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false;
2854         if (asus->gpu_fan_curve_available)
2855                 asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false;
2856
2857         return 0;
2858 }
2859
2860 static int throttle_thermal_policy_set_default(struct asus_wmi *asus)
2861 {
2862         if (!asus->throttle_thermal_policy_available)
2863                 return 0;
2864
2865         asus->throttle_thermal_policy_mode = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
2866         return throttle_thermal_policy_write(asus);
2867 }
2868
2869 static int throttle_thermal_policy_switch_next(struct asus_wmi *asus)
2870 {
2871         u8 new_mode = asus->throttle_thermal_policy_mode + 1;
2872         int err;
2873
2874         if (new_mode > ASUS_THROTTLE_THERMAL_POLICY_SILENT)
2875                 new_mode = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
2876
2877         asus->throttle_thermal_policy_mode = new_mode;
2878         err = throttle_thermal_policy_write(asus);
2879         if (err)
2880                 return err;
2881
2882         /*
2883          * Ensure that platform_profile updates userspace with the change to ensure
2884          * that platform_profile and throttle_thermal_policy_mode are in sync.
2885          */
2886         platform_profile_notify();
2887
2888         return 0;
2889 }
2890
2891 static ssize_t throttle_thermal_policy_show(struct device *dev,
2892                                    struct device_attribute *attr, char *buf)
2893 {
2894         struct asus_wmi *asus = dev_get_drvdata(dev);
2895         u8 mode = asus->throttle_thermal_policy_mode;
2896
2897         return sysfs_emit(buf, "%d\n", mode);
2898 }
2899
2900 static ssize_t throttle_thermal_policy_store(struct device *dev,
2901                                     struct device_attribute *attr,
2902                                     const char *buf, size_t count)
2903 {
2904         struct asus_wmi *asus = dev_get_drvdata(dev);
2905         u8 new_mode;
2906         int result;
2907         int err;
2908
2909         result = kstrtou8(buf, 10, &new_mode);
2910         if (result < 0)
2911                 return result;
2912
2913         if (new_mode > ASUS_THROTTLE_THERMAL_POLICY_SILENT)
2914                 return -EINVAL;
2915
2916         asus->throttle_thermal_policy_mode = new_mode;
2917         err = throttle_thermal_policy_write(asus);
2918         if (err)
2919                 return err;
2920
2921         /*
2922          * Ensure that platform_profile updates userspace with the change to ensure
2923          * that platform_profile and throttle_thermal_policy_mode are in sync.
2924          */
2925         platform_profile_notify();
2926
2927         return count;
2928 }
2929
2930 // Throttle thermal policy: 0 - default, 1 - overboost, 2 - silent
2931 static DEVICE_ATTR_RW(throttle_thermal_policy);
2932
2933 /* Platform profile ***********************************************************/
2934 static int asus_wmi_platform_profile_get(struct platform_profile_handler *pprof,
2935                                         enum platform_profile_option *profile)
2936 {
2937         struct asus_wmi *asus;
2938         int tp;
2939
2940         asus = container_of(pprof, struct asus_wmi, platform_profile_handler);
2941
2942         tp = asus->throttle_thermal_policy_mode;
2943
2944         switch (tp) {
2945         case ASUS_THROTTLE_THERMAL_POLICY_DEFAULT:
2946                 *profile = PLATFORM_PROFILE_BALANCED;
2947                 break;
2948         case ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST:
2949                 *profile = PLATFORM_PROFILE_PERFORMANCE;
2950                 break;
2951         case ASUS_THROTTLE_THERMAL_POLICY_SILENT:
2952                 *profile = PLATFORM_PROFILE_QUIET;
2953                 break;
2954         default:
2955                 return -EINVAL;
2956         }
2957
2958         return 0;
2959 }
2960
2961 static int asus_wmi_platform_profile_set(struct platform_profile_handler *pprof,
2962                                         enum platform_profile_option profile)
2963 {
2964         struct asus_wmi *asus;
2965         int tp;
2966
2967         asus = container_of(pprof, struct asus_wmi, platform_profile_handler);
2968
2969         switch (profile) {
2970         case PLATFORM_PROFILE_PERFORMANCE:
2971                 tp = ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST;
2972                 break;
2973         case PLATFORM_PROFILE_BALANCED:
2974                 tp = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
2975                 break;
2976         case PLATFORM_PROFILE_QUIET:
2977                 tp = ASUS_THROTTLE_THERMAL_POLICY_SILENT;
2978                 break;
2979         default:
2980                 return -EOPNOTSUPP;
2981         }
2982
2983         asus->throttle_thermal_policy_mode = tp;
2984         return throttle_thermal_policy_write(asus);
2985 }
2986
2987 static int platform_profile_setup(struct asus_wmi *asus)
2988 {
2989         struct device *dev = &asus->platform_device->dev;
2990         int err;
2991
2992         /*
2993          * Not an error if a component platform_profile relies on is unavailable
2994          * so early return, skipping the setup of platform_profile.
2995          */
2996         if (!asus->throttle_thermal_policy_available)
2997                 return 0;
2998
2999         dev_info(dev, "Using throttle_thermal_policy for platform_profile support\n");
3000
3001         asus->platform_profile_handler.profile_get = asus_wmi_platform_profile_get;
3002         asus->platform_profile_handler.profile_set = asus_wmi_platform_profile_set;
3003
3004         set_bit(PLATFORM_PROFILE_QUIET, asus->platform_profile_handler.choices);
3005         set_bit(PLATFORM_PROFILE_BALANCED,
3006                 asus->platform_profile_handler.choices);
3007         set_bit(PLATFORM_PROFILE_PERFORMANCE,
3008                 asus->platform_profile_handler.choices);
3009
3010         err = platform_profile_register(&asus->platform_profile_handler);
3011         if (err)
3012                 return err;
3013
3014         asus->platform_profile_support = true;
3015         return 0;
3016 }
3017
3018 /* Backlight ******************************************************************/
3019
3020 static int read_backlight_power(struct asus_wmi *asus)
3021 {
3022         int ret;
3023
3024         if (asus->driver->quirks->store_backlight_power)
3025                 ret = !asus->driver->panel_power;
3026         else
3027                 ret = asus_wmi_get_devstate_simple(asus,
3028                                                    ASUS_WMI_DEVID_BACKLIGHT);
3029
3030         if (ret < 0)
3031                 return ret;
3032
3033         return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
3034 }
3035
3036 static int read_brightness_max(struct asus_wmi *asus)
3037 {
3038         u32 retval;
3039         int err;
3040
3041         err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
3042         if (err < 0)
3043                 return err;
3044
3045         retval = retval & ASUS_WMI_DSTS_MAX_BRIGTH_MASK;
3046         retval >>= 8;
3047
3048         if (!retval)
3049                 return -ENODEV;
3050
3051         return retval;
3052 }
3053
3054 static int read_brightness(struct backlight_device *bd)
3055 {
3056         struct asus_wmi *asus = bl_get_data(bd);
3057         u32 retval;
3058         int err;
3059
3060         err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
3061         if (err < 0)
3062                 return err;
3063
3064         return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
3065 }
3066
3067 static u32 get_scalar_command(struct backlight_device *bd)
3068 {
3069         struct asus_wmi *asus = bl_get_data(bd);
3070         u32 ctrl_param = 0;
3071
3072         if ((asus->driver->brightness < bd->props.brightness) ||
3073             bd->props.brightness == bd->props.max_brightness)
3074                 ctrl_param = 0x00008001;
3075         else if ((asus->driver->brightness > bd->props.brightness) ||
3076                  bd->props.brightness == 0)
3077                 ctrl_param = 0x00008000;
3078
3079         asus->driver->brightness = bd->props.brightness;
3080
3081         return ctrl_param;
3082 }
3083
3084 static int update_bl_status(struct backlight_device *bd)
3085 {
3086         struct asus_wmi *asus = bl_get_data(bd);
3087         u32 ctrl_param;
3088         int power, err = 0;
3089
3090         power = read_backlight_power(asus);
3091         if (power != -ENODEV && bd->props.power != power) {
3092                 ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK);
3093                 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT,
3094                                             ctrl_param, NULL);
3095                 if (asus->driver->quirks->store_backlight_power)
3096                         asus->driver->panel_power = bd->props.power;
3097
3098                 /* When using scalar brightness, updating the brightness
3099                  * will mess with the backlight power */
3100                 if (asus->driver->quirks->scalar_panel_brightness)
3101                         return err;
3102         }
3103
3104         if (asus->driver->quirks->scalar_panel_brightness)
3105                 ctrl_param = get_scalar_command(bd);
3106         else
3107                 ctrl_param = bd->props.brightness;
3108
3109         err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS,
3110                                     ctrl_param, NULL);
3111
3112         return err;
3113 }
3114
3115 static const struct backlight_ops asus_wmi_bl_ops = {
3116         .get_brightness = read_brightness,
3117         .update_status = update_bl_status,
3118 };
3119
3120 static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code)
3121 {
3122         struct backlight_device *bd = asus->backlight_device;
3123         int old = bd->props.brightness;
3124         int new = old;
3125
3126         if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
3127                 new = code - NOTIFY_BRNUP_MIN + 1;
3128         else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
3129                 new = code - NOTIFY_BRNDOWN_MIN;
3130
3131         bd->props.brightness = new;
3132         backlight_update_status(bd);
3133         backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
3134
3135         return old;
3136 }
3137
3138 static int asus_wmi_backlight_init(struct asus_wmi *asus)
3139 {
3140         struct backlight_device *bd;
3141         struct backlight_properties props;
3142         int max;
3143         int power;
3144
3145         max = read_brightness_max(asus);
3146         if (max < 0)
3147                 return max;
3148
3149         power = read_backlight_power(asus);
3150         if (power == -ENODEV)
3151                 power = FB_BLANK_UNBLANK;
3152         else if (power < 0)
3153                 return power;
3154
3155         memset(&props, 0, sizeof(struct backlight_properties));
3156         props.type = BACKLIGHT_PLATFORM;
3157         props.max_brightness = max;
3158         bd = backlight_device_register(asus->driver->name,
3159                                        &asus->platform_device->dev, asus,
3160                                        &asus_wmi_bl_ops, &props);
3161         if (IS_ERR(bd)) {
3162                 pr_err("Could not register backlight device\n");
3163                 return PTR_ERR(bd);
3164         }
3165
3166         asus->backlight_device = bd;
3167
3168         if (asus->driver->quirks->store_backlight_power)
3169                 asus->driver->panel_power = power;
3170
3171         bd->props.brightness = read_brightness(bd);
3172         bd->props.power = power;
3173         backlight_update_status(bd);
3174
3175         asus->driver->brightness = bd->props.brightness;
3176
3177         return 0;
3178 }
3179
3180 static void asus_wmi_backlight_exit(struct asus_wmi *asus)
3181 {
3182         backlight_device_unregister(asus->backlight_device);
3183
3184         asus->backlight_device = NULL;
3185 }
3186
3187 static int is_display_toggle(int code)
3188 {
3189         /* display toggle keys */
3190         if ((code >= 0x61 && code <= 0x67) ||
3191             (code >= 0x8c && code <= 0x93) ||
3192             (code >= 0xa0 && code <= 0xa7) ||
3193             (code >= 0xd0 && code <= 0xd5))
3194                 return 1;
3195
3196         return 0;
3197 }
3198
3199 /* Fn-lock ********************************************************************/
3200
3201 static bool asus_wmi_has_fnlock_key(struct asus_wmi *asus)
3202 {
3203         u32 result;
3204
3205         asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FNLOCK, &result);
3206
3207         return (result & ASUS_WMI_DSTS_PRESENCE_BIT) &&
3208                 !(result & ASUS_WMI_FNLOCK_BIOS_DISABLED);
3209 }
3210
3211 static void asus_wmi_fnlock_update(struct asus_wmi *asus)
3212 {
3213         int mode = asus->fnlock_locked;
3214
3215         asus_wmi_set_devstate(ASUS_WMI_DEVID_FNLOCK, mode, NULL);
3216 }
3217
3218 /* WMI events *****************************************************************/
3219
3220 static int asus_wmi_get_event_code(u32 value)
3221 {
3222         struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
3223         union acpi_object *obj;
3224         acpi_status status;
3225         int code;
3226
3227         status = wmi_get_event_data(value, &response);
3228         if (ACPI_FAILURE(status)) {
3229                 pr_warn("Failed to get WMI notify code: %s\n",
3230                                 acpi_format_exception(status));
3231                 return -EIO;
3232         }
3233
3234         obj = (union acpi_object *)response.pointer;
3235
3236         if (obj && obj->type == ACPI_TYPE_INTEGER)
3237                 code = (int)(obj->integer.value & WMI_EVENT_MASK);
3238         else
3239                 code = -EIO;
3240
3241         kfree(obj);
3242         return code;
3243 }
3244
3245 static void asus_wmi_handle_event_code(int code, struct asus_wmi *asus)
3246 {
3247         unsigned int key_value = 1;
3248         bool autorelease = 1;
3249         int orig_code = code;
3250
3251         if (asus->driver->key_filter) {
3252                 asus->driver->key_filter(asus->driver, &code, &key_value,
3253                                          &autorelease);
3254                 if (code == ASUS_WMI_KEY_IGNORE)
3255                         return;
3256         }
3257
3258         if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
3259                 code = ASUS_WMI_BRN_UP;
3260         else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
3261                 code = ASUS_WMI_BRN_DOWN;
3262
3263         if (code == ASUS_WMI_BRN_DOWN || code == ASUS_WMI_BRN_UP) {
3264                 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
3265                         asus_wmi_backlight_notify(asus, orig_code);
3266                         return;
3267                 }
3268         }
3269
3270         if (code == NOTIFY_KBD_BRTUP) {
3271                 kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1);
3272                 return;
3273         }
3274         if (code == NOTIFY_KBD_BRTDWN) {
3275                 kbd_led_set_by_kbd(asus, asus->kbd_led_wk - 1);
3276                 return;
3277         }
3278         if (code == NOTIFY_KBD_BRTTOGGLE) {
3279                 if (asus->kbd_led_wk == asus->kbd_led.max_brightness)
3280                         kbd_led_set_by_kbd(asus, 0);
3281                 else
3282                         kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1);
3283                 return;
3284         }
3285
3286         if (code == NOTIFY_FNLOCK_TOGGLE) {
3287                 asus->fnlock_locked = !asus->fnlock_locked;
3288                 asus_wmi_fnlock_update(asus);
3289                 return;
3290         }
3291
3292         if (code == asus->tablet_switch_event_code) {
3293                 asus_wmi_tablet_mode_get_state(asus);
3294                 return;
3295         }
3296
3297         if (code == NOTIFY_KBD_FBM || code == NOTIFY_KBD_TTP) {
3298                 if (asus->fan_boost_mode_available)
3299                         fan_boost_mode_switch_next(asus);
3300                 if (asus->throttle_thermal_policy_available)
3301                         throttle_thermal_policy_switch_next(asus);
3302                 return;
3303
3304         }
3305
3306         if (is_display_toggle(code) && asus->driver->quirks->no_display_toggle)
3307                 return;
3308
3309         if (!sparse_keymap_report_event(asus->inputdev, code,
3310                                         key_value, autorelease))
3311                 pr_info("Unknown key code 0x%x\n", code);
3312 }
3313
3314 static void asus_wmi_notify(u32 value, void *context)
3315 {
3316         struct asus_wmi *asus = context;
3317         int code;
3318         int i;
3319
3320         for (i = 0; i < WMI_EVENT_QUEUE_SIZE + 1; i++) {
3321                 code = asus_wmi_get_event_code(value);
3322                 if (code < 0) {
3323                         pr_warn("Failed to get notify code: %d\n", code);
3324                         return;
3325                 }
3326
3327                 if (code == WMI_EVENT_QUEUE_END || code == WMI_EVENT_MASK)
3328                         return;
3329
3330                 asus_wmi_handle_event_code(code, asus);
3331
3332                 /*
3333                  * Double check that queue is present:
3334                  * ATK (with queue) uses 0xff, ASUSWMI (without) 0xd2.
3335                  */
3336                 if (!asus->wmi_event_queue || value != WMI_EVENT_VALUE_ATK)
3337                         return;
3338         }
3339
3340         pr_warn("Failed to process event queue, last code: 0x%x\n", code);
3341 }
3342
3343 static int asus_wmi_notify_queue_flush(struct asus_wmi *asus)
3344 {
3345         int code;
3346         int i;
3347
3348         for (i = 0; i < WMI_EVENT_QUEUE_SIZE + 1; i++) {
3349                 code = asus_wmi_get_event_code(WMI_EVENT_VALUE_ATK);
3350                 if (code < 0) {
3351                         pr_warn("Failed to get event during flush: %d\n", code);
3352                         return code;
3353                 }
3354
3355                 if (code == WMI_EVENT_QUEUE_END || code == WMI_EVENT_MASK)
3356                         return 0;
3357         }
3358
3359         pr_warn("Failed to flush event queue\n");
3360         return -EIO;
3361 }
3362
3363 /* Sysfs **********************************************************************/
3364
3365 static ssize_t store_sys_wmi(struct asus_wmi *asus, int devid,
3366                              const char *buf, size_t count)
3367 {
3368         u32 retval;
3369         int err, value;
3370
3371         value = asus_wmi_get_devstate_simple(asus, devid);
3372         if (value < 0)
3373                 return value;
3374
3375         err = kstrtoint(buf, 0, &value);
3376         if (err)
3377                 return err;
3378
3379         err = asus_wmi_set_devstate(devid, value, &retval);
3380         if (err < 0)
3381                 return err;
3382
3383         return count;
3384 }
3385
3386 static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
3387 {
3388         int value = asus_wmi_get_devstate_simple(asus, devid);
3389
3390         if (value < 0)
3391                 return value;
3392
3393         return sprintf(buf, "%d\n", value);
3394 }
3395
3396 #define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm)                  \
3397         static ssize_t show_##_name(struct device *dev,                 \
3398                                     struct device_attribute *attr,      \
3399                                     char *buf)                          \
3400         {                                                               \
3401                 struct asus_wmi *asus = dev_get_drvdata(dev);           \
3402                                                                         \
3403                 return show_sys_wmi(asus, _cm, buf);                    \
3404         }                                                               \
3405         static ssize_t store_##_name(struct device *dev,                \
3406                                      struct device_attribute *attr,     \
3407                                      const char *buf, size_t count)     \
3408         {                                                               \
3409                 struct asus_wmi *asus = dev_get_drvdata(dev);           \
3410                                                                         \
3411                 return store_sys_wmi(asus, _cm, buf, count);            \
3412         }                                                               \
3413         static struct device_attribute dev_attr_##_name = {             \
3414                 .attr = {                                               \
3415                         .name = __stringify(_name),                     \
3416                         .mode = _mode },                                \
3417                 .show   = show_##_name,                                 \
3418                 .store  = store_##_name,                                \
3419         }
3420
3421 ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD);
3422 ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA);
3423 ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
3424 ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume, 0644, ASUS_WMI_DEVID_LID_RESUME);
3425 ASUS_WMI_CREATE_DEVICE_ATTR(als_enable, 0644, ASUS_WMI_DEVID_ALS_ENABLE);
3426
3427 static ssize_t cpufv_store(struct device *dev, struct device_attribute *attr,
3428                            const char *buf, size_t count)
3429 {
3430         int value, rv;
3431
3432         rv = kstrtoint(buf, 0, &value);
3433         if (rv)
3434                 return rv;
3435
3436         if (value < 0 || value > 2)
3437                 return -EINVAL;
3438
3439         rv = asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL);
3440         if (rv < 0)
3441                 return rv;
3442
3443         return count;
3444 }
3445
3446 static DEVICE_ATTR_WO(cpufv);
3447
3448 static struct attribute *platform_attributes[] = {
3449         &dev_attr_cpufv.attr,
3450         &dev_attr_camera.attr,
3451         &dev_attr_cardr.attr,
3452         &dev_attr_touchpad.attr,
3453         &dev_attr_egpu_enable.attr,
3454         &dev_attr_dgpu_disable.attr,
3455         &dev_attr_gpu_mux_mode.attr,
3456         &dev_attr_lid_resume.attr,
3457         &dev_attr_als_enable.attr,
3458         &dev_attr_fan_boost_mode.attr,
3459         &dev_attr_throttle_thermal_policy.attr,
3460         &dev_attr_panel_od.attr,
3461         NULL
3462 };
3463
3464 static umode_t asus_sysfs_is_visible(struct kobject *kobj,
3465                                     struct attribute *attr, int idx)
3466 {
3467         struct device *dev = kobj_to_dev(kobj);
3468         struct asus_wmi *asus = dev_get_drvdata(dev);
3469         bool ok = true;
3470         int devid = -1;
3471
3472         if (attr == &dev_attr_camera.attr)
3473                 devid = ASUS_WMI_DEVID_CAMERA;
3474         else if (attr == &dev_attr_cardr.attr)
3475                 devid = ASUS_WMI_DEVID_CARDREADER;
3476         else if (attr == &dev_attr_touchpad.attr)
3477                 devid = ASUS_WMI_DEVID_TOUCHPAD;
3478         else if (attr == &dev_attr_lid_resume.attr)
3479                 devid = ASUS_WMI_DEVID_LID_RESUME;
3480         else if (attr == &dev_attr_als_enable.attr)
3481                 devid = ASUS_WMI_DEVID_ALS_ENABLE;
3482         else if (attr == &dev_attr_egpu_enable.attr)
3483                 ok = asus->egpu_enable_available;
3484         else if (attr == &dev_attr_dgpu_disable.attr)
3485                 ok = asus->dgpu_disable_available;
3486         else if (attr == &dev_attr_gpu_mux_mode.attr)
3487                 ok = asus->gpu_mux_mode_available;
3488         else if (attr == &dev_attr_fan_boost_mode.attr)
3489                 ok = asus->fan_boost_mode_available;
3490         else if (attr == &dev_attr_throttle_thermal_policy.attr)
3491                 ok = asus->throttle_thermal_policy_available;
3492         else if (attr == &dev_attr_panel_od.attr)
3493                 ok = asus->panel_overdrive_available;
3494
3495         if (devid != -1)
3496                 ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
3497
3498         return ok ? attr->mode : 0;
3499 }
3500
3501 static const struct attribute_group platform_attribute_group = {
3502         .is_visible = asus_sysfs_is_visible,
3503         .attrs = platform_attributes
3504 };
3505
3506 static void asus_wmi_sysfs_exit(struct platform_device *device)
3507 {
3508         sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
3509 }
3510
3511 static int asus_wmi_sysfs_init(struct platform_device *device)
3512 {
3513         return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
3514 }
3515
3516 /* Platform device ************************************************************/
3517
3518 static int asus_wmi_platform_init(struct asus_wmi *asus)
3519 {
3520         struct device *dev = &asus->platform_device->dev;
3521         char *wmi_uid;
3522         int rv;
3523
3524         /* INIT enable hotkeys on some models */
3525         if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv))
3526                 pr_info("Initialization: %#x\n", rv);
3527
3528         /* We don't know yet what to do with this version... */
3529         if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) {
3530                 pr_info("BIOS WMI version: %d.%d\n", rv >> 16, rv & 0xFF);
3531                 asus->spec = rv;
3532         }
3533
3534         /*
3535          * The SFUN method probably allows the original driver to get the list
3536          * of features supported by a given model. For now, 0x0100 or 0x0800
3537          * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
3538          * The significance of others is yet to be found.
3539          */
3540         if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) {
3541                 pr_info("SFUN value: %#x\n", rv);
3542                 asus->sfun = rv;
3543         }
3544
3545         /*
3546          * Eee PC and Notebooks seems to have different method_id for DSTS,
3547          * but it may also be related to the BIOS's SPEC.
3548          * Note, on most Eeepc, there is no way to check if a method exist
3549          * or note, while on notebooks, they returns 0xFFFFFFFE on failure,
3550          * but once again, SPEC may probably be used for that kind of things.
3551          *
3552          * Additionally at least TUF Gaming series laptops return nothing for
3553          * unknown methods, so the detection in this way is not possible.
3554          *
3555          * There is strong indication that only ACPI WMI devices that have _UID
3556          * equal to "ASUSWMI" use DCTS whereas those with "ATK" use DSTS.
3557          */
3558         wmi_uid = wmi_get_acpi_device_uid(ASUS_WMI_MGMT_GUID);
3559         if (!wmi_uid)
3560                 return -ENODEV;
3561
3562         if (!strcmp(wmi_uid, ASUS_ACPI_UID_ASUSWMI)) {
3563                 dev_info(dev, "Detected ASUSWMI, use DCTS\n");
3564                 asus->dsts_id = ASUS_WMI_METHODID_DCTS;
3565         } else {
3566                 dev_info(dev, "Detected %s, not ASUSWMI, use DSTS\n", wmi_uid);
3567                 asus->dsts_id = ASUS_WMI_METHODID_DSTS;
3568         }
3569
3570         /*
3571          * Some devices can have multiple event codes stored in a queue before
3572          * the module load if it was unloaded intermittently after calling
3573          * the INIT method (enables event handling). The WMI notify handler is
3574          * expected to retrieve all event codes until a retrieved code equals
3575          * queue end marker (One or Ones). Old codes are flushed from the queue
3576          * upon module load. Not enabling this when it should be has minimal
3577          * visible impact so fall back if anything goes wrong.
3578          */
3579         wmi_uid = wmi_get_acpi_device_uid(asus->driver->event_guid);
3580         if (wmi_uid && !strcmp(wmi_uid, ASUS_ACPI_UID_ATK)) {
3581                 dev_info(dev, "Detected ATK, enable event queue\n");
3582
3583                 if (!asus_wmi_notify_queue_flush(asus))
3584                         asus->wmi_event_queue = true;
3585         }
3586
3587         /* CWAP allow to define the behavior of the Fn+F2 key,
3588          * this method doesn't seems to be present on Eee PCs */
3589         if (asus->driver->quirks->wapf >= 0)
3590                 asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP,
3591                                       asus->driver->quirks->wapf, NULL);
3592
3593         return 0;
3594 }
3595
3596 /* debugfs ********************************************************************/
3597
3598 struct asus_wmi_debugfs_node {
3599         struct asus_wmi *asus;
3600         char *name;
3601         int (*show) (struct seq_file *m, void *data);
3602 };
3603
3604 static int show_dsts(struct seq_file *m, void *data)
3605 {
3606         struct asus_wmi *asus = m->private;
3607         int err;
3608         u32 retval = -1;
3609
3610         err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
3611         if (err < 0)
3612                 return err;
3613
3614         seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval);
3615
3616         return 0;
3617 }
3618
3619 static int show_devs(struct seq_file *m, void *data)
3620 {
3621         struct asus_wmi *asus = m->private;
3622         int err;
3623         u32 retval = -1;
3624
3625         err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
3626                                     &retval);
3627         if (err < 0)
3628                 return err;
3629
3630         seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id,
3631                    asus->debug.ctrl_param, retval);
3632
3633         return 0;
3634 }
3635
3636 static int show_call(struct seq_file *m, void *data)
3637 {
3638         struct asus_wmi *asus = m->private;
3639         struct bios_args args = {
3640                 .arg0 = asus->debug.dev_id,
3641                 .arg1 = asus->debug.ctrl_param,
3642         };
3643         struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
3644         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
3645         union acpi_object *obj;
3646         acpi_status status;
3647
3648         status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
3649                                      0, asus->debug.method_id,
3650                                      &input, &output);
3651
3652         if (ACPI_FAILURE(status))
3653                 return -EIO;
3654
3655         obj = (union acpi_object *)output.pointer;
3656         if (obj && obj->type == ACPI_TYPE_INTEGER)
3657                 seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id,
3658                            asus->debug.dev_id, asus->debug.ctrl_param,
3659                            (u32) obj->integer.value);
3660         else
3661                 seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id,
3662                            asus->debug.dev_id, asus->debug.ctrl_param,
3663                            obj ? obj->type : -1);
3664
3665         kfree(obj);
3666
3667         return 0;
3668 }
3669
3670 static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = {
3671         {NULL, "devs", show_devs},
3672         {NULL, "dsts", show_dsts},
3673         {NULL, "call", show_call},
3674 };
3675
3676 static int asus_wmi_debugfs_open(struct inode *inode, struct file *file)
3677 {
3678         struct asus_wmi_debugfs_node *node = inode->i_private;
3679
3680         return single_open(file, node->show, node->asus);
3681 }
3682
3683 static const struct file_operations asus_wmi_debugfs_io_ops = {
3684         .owner = THIS_MODULE,
3685         .open = asus_wmi_debugfs_open,
3686         .read = seq_read,
3687         .llseek = seq_lseek,
3688         .release = single_release,
3689 };
3690
3691 static void asus_wmi_debugfs_exit(struct asus_wmi *asus)
3692 {
3693         debugfs_remove_recursive(asus->debug.root);
3694 }
3695
3696 static void asus_wmi_debugfs_init(struct asus_wmi *asus)
3697 {
3698         int i;
3699
3700         asus->debug.root = debugfs_create_dir(asus->driver->name, NULL);
3701
3702         debugfs_create_x32("method_id", S_IRUGO | S_IWUSR, asus->debug.root,
3703                            &asus->debug.method_id);
3704
3705         debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR, asus->debug.root,
3706                            &asus->debug.dev_id);
3707
3708         debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR, asus->debug.root,
3709                            &asus->debug.ctrl_param);
3710
3711         for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) {
3712                 struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i];
3713
3714                 node->asus = asus;
3715                 debugfs_create_file(node->name, S_IFREG | S_IRUGO,
3716                                     asus->debug.root, node,
3717                                     &asus_wmi_debugfs_io_ops);
3718         }
3719 }
3720
3721 /* Init / exit ****************************************************************/
3722
3723 static int asus_wmi_add(struct platform_device *pdev)
3724 {
3725         struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
3726         struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
3727         struct asus_wmi *asus;
3728         acpi_status status;
3729         int err;
3730         u32 result;
3731
3732         asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL);
3733         if (!asus)
3734                 return -ENOMEM;
3735
3736         asus->driver = wdrv;
3737         asus->platform_device = pdev;
3738         wdrv->platform_device = pdev;
3739         platform_set_drvdata(asus->platform_device, asus);
3740
3741         if (wdrv->detect_quirks)
3742                 wdrv->detect_quirks(asus->driver);
3743
3744         err = asus_wmi_platform_init(asus);
3745         if (err)
3746                 goto fail_platform;
3747
3748         asus->egpu_enable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU);
3749         asus->dgpu_disable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_DGPU);
3750         asus->gpu_mux_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX);
3751         asus->kbd_rgb_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE);
3752         asus->kbd_rgb_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_STATE);
3753         asus->panel_overdrive_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PANEL_OD);
3754
3755         err = fan_boost_mode_check_present(asus);
3756         if (err)
3757                 goto fail_fan_boost_mode;
3758
3759         err = throttle_thermal_policy_check_present(asus);
3760         if (err)
3761                 goto fail_throttle_thermal_policy;
3762         else
3763                 throttle_thermal_policy_set_default(asus);
3764
3765         err = platform_profile_setup(asus);
3766         if (err)
3767                 goto fail_platform_profile_setup;
3768
3769         err = asus_wmi_sysfs_init(asus->platform_device);
3770         if (err)
3771                 goto fail_sysfs;
3772
3773         err = asus_wmi_input_init(asus);
3774         if (err)
3775                 goto fail_input;
3776
3777         err = asus_wmi_fan_init(asus); /* probably no problems on error */
3778
3779         err = asus_wmi_hwmon_init(asus);
3780         if (err)
3781                 goto fail_hwmon;
3782
3783         err = asus_wmi_custom_fan_curve_init(asus);
3784         if (err)
3785                 goto fail_custom_fan_curve;
3786
3787         err = asus_wmi_led_init(asus);
3788         if (err)
3789                 goto fail_leds;
3790
3791         asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result);
3792         if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT))
3793                 asus->driver->wlan_ctrl_by_user = 1;
3794
3795         if (!(asus->driver->wlan_ctrl_by_user && ashs_present())) {
3796                 err = asus_wmi_rfkill_init(asus);
3797                 if (err)
3798                         goto fail_rfkill;
3799         }
3800
3801         if (asus->driver->quirks->wmi_force_als_set)
3802                 asus_wmi_set_als();
3803
3804         if (asus->driver->quirks->xusb2pr)
3805                 asus_wmi_set_xusb2pr(asus);
3806
3807         if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
3808                 err = asus_wmi_backlight_init(asus);
3809                 if (err && err != -ENODEV)
3810                         goto fail_backlight;
3811         } else if (asus->driver->quirks->wmi_backlight_set_devstate)
3812                 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL);
3813
3814         if (asus_wmi_has_fnlock_key(asus)) {
3815                 asus->fnlock_locked = fnlock_default;
3816                 asus_wmi_fnlock_update(asus);
3817         }
3818
3819         status = wmi_install_notify_handler(asus->driver->event_guid,
3820                                             asus_wmi_notify, asus);
3821         if (ACPI_FAILURE(status)) {
3822                 pr_err("Unable to register notify handler - %d\n", status);
3823                 err = -ENODEV;
3824                 goto fail_wmi_handler;
3825         }
3826
3827         asus_wmi_battery_init(asus);
3828
3829         asus_wmi_debugfs_init(asus);
3830
3831         return 0;
3832
3833 fail_wmi_handler:
3834         asus_wmi_backlight_exit(asus);
3835 fail_backlight:
3836         asus_wmi_rfkill_exit(asus);
3837 fail_rfkill:
3838         asus_wmi_led_exit(asus);
3839 fail_leds:
3840 fail_hwmon:
3841         asus_wmi_input_exit(asus);
3842 fail_input:
3843         asus_wmi_sysfs_exit(asus->platform_device);
3844 fail_sysfs:
3845 fail_throttle_thermal_policy:
3846 fail_custom_fan_curve:
3847 fail_platform_profile_setup:
3848         if (asus->platform_profile_support)
3849                 platform_profile_remove();
3850 fail_fan_boost_mode:
3851 fail_platform:
3852         kfree(asus);
3853         return err;
3854 }
3855
3856 static int asus_wmi_remove(struct platform_device *device)
3857 {
3858         struct asus_wmi *asus;
3859
3860         asus = platform_get_drvdata(device);
3861         wmi_remove_notify_handler(asus->driver->event_guid);
3862         asus_wmi_backlight_exit(asus);
3863         asus_wmi_input_exit(asus);
3864         asus_wmi_led_exit(asus);
3865         asus_wmi_rfkill_exit(asus);
3866         asus_wmi_debugfs_exit(asus);
3867         asus_wmi_sysfs_exit(asus->platform_device);
3868         asus_fan_set_auto(asus);
3869         throttle_thermal_policy_set_default(asus);
3870         asus_wmi_battery_exit(asus);
3871
3872         if (asus->platform_profile_support)
3873                 platform_profile_remove();
3874
3875         kfree(asus);
3876         return 0;
3877 }
3878
3879 /* Platform driver - hibernate/resume callbacks *******************************/
3880
3881 static int asus_hotk_thaw(struct device *device)
3882 {
3883         struct asus_wmi *asus = dev_get_drvdata(device);
3884
3885         if (asus->wlan.rfkill) {
3886                 bool wlan;
3887
3888                 /*
3889                  * Work around bios bug - acpi _PTS turns off the wireless led
3890                  * during suspend.  Normally it restores it on resume, but
3891                  * we should kick it ourselves in case hibernation is aborted.
3892                  */
3893                 wlan = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
3894                 asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL);
3895         }
3896
3897         return 0;
3898 }
3899
3900 static int asus_hotk_resume(struct device *device)
3901 {
3902         struct asus_wmi *asus = dev_get_drvdata(device);
3903
3904         if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
3905                 kbd_led_update(asus);
3906
3907         if (asus_wmi_has_fnlock_key(asus))
3908                 asus_wmi_fnlock_update(asus);
3909
3910         asus_wmi_tablet_mode_get_state(asus);
3911         return 0;
3912 }
3913
3914 static int asus_hotk_restore(struct device *device)
3915 {
3916         struct asus_wmi *asus = dev_get_drvdata(device);
3917         int bl;
3918
3919         /* Refresh both wlan rfkill state and pci hotplug */
3920         if (asus->wlan.rfkill)
3921                 asus_rfkill_hotplug(asus);
3922
3923         if (asus->bluetooth.rfkill) {
3924                 bl = !asus_wmi_get_devstate_simple(asus,
3925                                                    ASUS_WMI_DEVID_BLUETOOTH);
3926                 rfkill_set_sw_state(asus->bluetooth.rfkill, bl);
3927         }
3928         if (asus->wimax.rfkill) {
3929                 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WIMAX);
3930                 rfkill_set_sw_state(asus->wimax.rfkill, bl);
3931         }
3932         if (asus->wwan3g.rfkill) {
3933                 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WWAN3G);
3934                 rfkill_set_sw_state(asus->wwan3g.rfkill, bl);
3935         }
3936         if (asus->gps.rfkill) {
3937                 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPS);
3938                 rfkill_set_sw_state(asus->gps.rfkill, bl);
3939         }
3940         if (asus->uwb.rfkill) {
3941                 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_UWB);
3942                 rfkill_set_sw_state(asus->uwb.rfkill, bl);
3943         }
3944         if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
3945                 kbd_led_update(asus);
3946
3947         if (asus_wmi_has_fnlock_key(asus))
3948                 asus_wmi_fnlock_update(asus);
3949
3950         asus_wmi_tablet_mode_get_state(asus);
3951         return 0;
3952 }
3953
3954 static const struct dev_pm_ops asus_pm_ops = {
3955         .thaw = asus_hotk_thaw,
3956         .restore = asus_hotk_restore,
3957         .resume = asus_hotk_resume,
3958 };
3959
3960 /* Registration ***************************************************************/
3961
3962 static int asus_wmi_probe(struct platform_device *pdev)
3963 {
3964         struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
3965         struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
3966         int ret;
3967
3968         if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
3969                 pr_warn("ASUS Management GUID not found\n");
3970                 return -ENODEV;
3971         }
3972
3973         if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) {
3974                 pr_warn("ASUS Event GUID not found\n");
3975                 return -ENODEV;
3976         }
3977
3978         if (wdrv->probe) {
3979                 ret = wdrv->probe(pdev);
3980                 if (ret)
3981                         return ret;
3982         }
3983
3984         return asus_wmi_add(pdev);
3985 }
3986
3987 static bool used;
3988
3989 int __init_or_module asus_wmi_register_driver(struct asus_wmi_driver *driver)
3990 {
3991         struct platform_driver *platform_driver;
3992         struct platform_device *platform_device;
3993
3994         if (used)
3995                 return -EBUSY;
3996
3997         platform_driver = &driver->platform_driver;
3998         platform_driver->remove = asus_wmi_remove;
3999         platform_driver->driver.owner = driver->owner;
4000         platform_driver->driver.name = driver->name;
4001         platform_driver->driver.pm = &asus_pm_ops;
4002
4003         platform_device = platform_create_bundle(platform_driver,
4004                                                  asus_wmi_probe,
4005                                                  NULL, 0, NULL, 0);
4006         if (IS_ERR(platform_device))
4007                 return PTR_ERR(platform_device);
4008
4009         used = true;
4010         return 0;
4011 }
4012 EXPORT_SYMBOL_GPL(asus_wmi_register_driver);
4013
4014 void asus_wmi_unregister_driver(struct asus_wmi_driver *driver)
4015 {
4016         platform_device_unregister(driver->platform_device);
4017         platform_driver_unregister(&driver->platform_driver);
4018         used = false;
4019 }
4020 EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver);
4021
4022 static int __init asus_wmi_init(void)
4023 {
4024         pr_info("ASUS WMI generic driver loaded\n");
4025         return 0;
4026 }
4027
4028 static void __exit asus_wmi_exit(void)
4029 {
4030         pr_info("ASUS WMI generic driver unloaded\n");
4031 }
4032
4033 module_init(asus_wmi_init);
4034 module_exit(asus_wmi_exit);