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)
 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)
 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         pr_info("set USB_INTEL_XUSB2PR old: 0x%04x, new: 0x%04x\n",
1742                         orig_ports_available, ports_available);
1743 }
1744
1745 /*
1746  * Some devices dont support or have borcken get_als method
1747  * but still support set method.
1748  */
1749 static void asus_wmi_set_als(void)
1750 {
1751         asus_wmi_set_devstate(ASUS_WMI_DEVID_ALS_ENABLE, 1, NULL);
1752 }
1753
1754 /* Hwmon device ***************************************************************/
1755
1756 static int asus_agfn_fan_speed_read(struct asus_wmi *asus, int fan,
1757                                           int *speed)
1758 {
1759         struct agfn_fan_args args = {
1760                 .agfn.len = sizeof(args),
1761                 .agfn.mfun = ASUS_FAN_MFUN,
1762                 .agfn.sfun = ASUS_FAN_SFUN_READ,
1763                 .fan = fan,
1764                 .speed = 0,
1765         };
1766         struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
1767         int status;
1768
1769         if (fan != 1)
1770                 return -EINVAL;
1771
1772         status = asus_wmi_evaluate_method_agfn(input);
1773
1774         if (status || args.agfn.err)
1775                 return -ENXIO;
1776
1777         if (speed)
1778                 *speed = args.speed;
1779
1780         return 0;
1781 }
1782
1783 static int asus_agfn_fan_speed_write(struct asus_wmi *asus, int fan,
1784                                      int *speed)
1785 {
1786         struct agfn_fan_args args = {
1787                 .agfn.len = sizeof(args),
1788                 .agfn.mfun = ASUS_FAN_MFUN,
1789                 .agfn.sfun = ASUS_FAN_SFUN_WRITE,
1790                 .fan = fan,
1791                 .speed = speed ?  *speed : 0,
1792         };
1793         struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
1794         int status;
1795
1796         /* 1: for setting 1st fan's speed 0: setting auto mode */
1797         if (fan != 1 && fan != 0)
1798                 return -EINVAL;
1799
1800         status = asus_wmi_evaluate_method_agfn(input);
1801
1802         if (status || args.agfn.err)
1803                 return -ENXIO;
1804
1805         if (speed && fan == 1)
1806                 asus->agfn_pwm = *speed;
1807
1808         return 0;
1809 }
1810
1811 /*
1812  * Check if we can read the speed of one fan. If true we assume we can also
1813  * control it.
1814  */
1815 static bool asus_wmi_has_agfn_fan(struct asus_wmi *asus)
1816 {
1817         int status;
1818         int speed;
1819         u32 value;
1820
1821         status = asus_agfn_fan_speed_read(asus, 1, &speed);
1822         if (status != 0)
1823                 return false;
1824
1825         status = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
1826         if (status != 0)
1827                 return false;
1828
1829         /*
1830          * We need to find a better way, probably using sfun,
1831          * bits or spec ...
1832          * Currently we disable it if:
1833          * - ASUS_WMI_UNSUPPORTED_METHOD is returned
1834          * - reverved bits are non-zero
1835          * - sfun and presence bit are not set
1836          */
1837         return !(value == ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000
1838                  || (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT)));
1839 }
1840
1841 static int asus_fan_set_auto(struct asus_wmi *asus)
1842 {
1843         int status;
1844         u32 retval;
1845
1846         switch (asus->fan_type) {
1847         case FAN_TYPE_SPEC83:
1848                 status = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL,
1849                                                0, &retval);
1850                 if (status)
1851                         return status;
1852
1853                 if (retval != 1)
1854                         return -EIO;
1855                 break;
1856
1857         case FAN_TYPE_AGFN:
1858                 status = asus_agfn_fan_speed_write(asus, 0, NULL);
1859                 if (status)
1860                         return -ENXIO;
1861                 break;
1862
1863         default:
1864                 return -ENXIO;
1865         }
1866
1867         /*
1868          * Modern models like the G713 also have GPU fan control (this is not AGFN)
1869          */
1870         if (asus->gpu_fan_type == FAN_TYPE_SPEC83) {
1871                 status = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
1872                                                0, &retval);
1873                 if (status)
1874                         return status;
1875
1876                 if (retval != 1)
1877                         return -EIO;
1878         }
1879
1880         return 0;
1881 }
1882
1883 static ssize_t pwm1_show(struct device *dev,
1884                                struct device_attribute *attr,
1885                                char *buf)
1886 {
1887         struct asus_wmi *asus = dev_get_drvdata(dev);
1888         int err;
1889         int value;
1890
1891         /* If we already set a value then just return it */
1892         if (asus->agfn_pwm >= 0)
1893                 return sprintf(buf, "%d\n", asus->agfn_pwm);
1894
1895         /*
1896          * If we haven't set already set a value through the AGFN interface,
1897          * we read a current value through the (now-deprecated) FAN_CTRL device.
1898          */
1899         err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
1900         if (err < 0)
1901                 return err;
1902
1903         value &= 0xFF;
1904
1905         if (value == 1) /* Low Speed */
1906                 value = 85;
1907         else if (value == 2)
1908                 value = 170;
1909         else if (value == 3)
1910                 value = 255;
1911         else if (value) {
1912                 pr_err("Unknown fan speed %#x\n", value);
1913                 value = -1;
1914         }
1915
1916         return sysfs_emit(buf, "%d\n", value);
1917 }
1918
1919 static ssize_t pwm1_store(struct device *dev,
1920                                      struct device_attribute *attr,
1921                                      const char *buf, size_t count) {
1922         struct asus_wmi *asus = dev_get_drvdata(dev);
1923         int value;
1924         int state;
1925         int ret;
1926
1927         ret = kstrtouint(buf, 10, &value);
1928         if (ret)
1929                 return ret;
1930
1931         value = clamp(value, 0, 255);
1932
1933         state = asus_agfn_fan_speed_write(asus, 1, &value);
1934         if (state)
1935                 pr_warn("Setting fan speed failed: %d\n", state);
1936         else
1937                 asus->fan_pwm_mode = ASUS_FAN_CTRL_MANUAL;
1938
1939         return count;
1940 }
1941
1942 static ssize_t fan1_input_show(struct device *dev,
1943                                         struct device_attribute *attr,
1944                                         char *buf)
1945 {
1946         struct asus_wmi *asus = dev_get_drvdata(dev);
1947         int value;
1948         int ret;
1949
1950         switch (asus->fan_type) {
1951         case FAN_TYPE_SPEC83:
1952                 ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL,
1953                                             &value);
1954                 if (ret < 0)
1955                         return ret;
1956
1957                 value &= 0xffff;
1958                 break;
1959
1960         case FAN_TYPE_AGFN:
1961                 /* no speed readable on manual mode */
1962                 if (asus->fan_pwm_mode == ASUS_FAN_CTRL_MANUAL)
1963                         return -ENXIO;
1964
1965                 ret = asus_agfn_fan_speed_read(asus, 1, &value);
1966                 if (ret) {
1967                         pr_warn("reading fan speed failed: %d\n", ret);
1968                         return -ENXIO;
1969                 }
1970                 break;
1971
1972         default:
1973                 return -ENXIO;
1974         }
1975
1976         return sysfs_emit(buf, "%d\n", value < 0 ? -1 : value * 100);
1977 }
1978
1979 static ssize_t pwm1_enable_show(struct device *dev,
1980                                                  struct device_attribute *attr,
1981                                                  char *buf)
1982 {
1983         struct asus_wmi *asus = dev_get_drvdata(dev);
1984
1985         /*
1986          * Just read back the cached pwm mode.
1987          *
1988          * For the CPU_FAN device, the spec indicates that we should be
1989          * able to read the device status and consult bit 19 to see if we
1990          * are in Full On or Automatic mode. However, this does not work
1991          * in practice on X532FL at least (the bit is always 0) and there's
1992          * also nothing in the DSDT to indicate that this behaviour exists.
1993          */
1994         return sysfs_emit(buf, "%d\n", asus->fan_pwm_mode);
1995 }
1996
1997 static ssize_t pwm1_enable_store(struct device *dev,
1998                                                   struct device_attribute *attr,
1999                                                   const char *buf, size_t count)
2000 {
2001         struct asus_wmi *asus = dev_get_drvdata(dev);
2002         int status = 0;
2003         int state;
2004         int value;
2005         int ret;
2006         u32 retval;
2007
2008         ret = kstrtouint(buf, 10, &state);
2009         if (ret)
2010                 return ret;
2011
2012         if (asus->fan_type == FAN_TYPE_SPEC83) {
2013                 switch (state) { /* standard documented hwmon values */
2014                 case ASUS_FAN_CTRL_FULLSPEED:
2015                         value = 1;
2016                         break;
2017                 case ASUS_FAN_CTRL_AUTO:
2018                         value = 0;
2019                         break;
2020                 default:
2021                         return -EINVAL;
2022                 }
2023
2024                 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL,
2025                                             value, &retval);
2026                 if (ret)
2027                         return ret;
2028
2029                 if (retval != 1)
2030                         return -EIO;
2031         } else if (asus->fan_type == FAN_TYPE_AGFN) {
2032                 switch (state) {
2033                 case ASUS_FAN_CTRL_MANUAL:
2034                         break;
2035
2036                 case ASUS_FAN_CTRL_AUTO:
2037                         status = asus_fan_set_auto(asus);
2038                         if (status)
2039                                 return status;
2040                         break;
2041
2042                 default:
2043                         return -EINVAL;
2044                 }
2045         }
2046
2047         asus->fan_pwm_mode = state;
2048
2049         /* Must set to disabled if mode is toggled */
2050         if (asus->cpu_fan_curve_available)
2051                 asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false;
2052         if (asus->gpu_fan_curve_available)
2053                 asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false;
2054
2055         return count;
2056 }
2057
2058 static ssize_t fan1_label_show(struct device *dev,
2059                                           struct device_attribute *attr,
2060                                           char *buf)
2061 {
2062         return sysfs_emit(buf, "%s\n", ASUS_FAN_DESC);
2063 }
2064
2065 static ssize_t asus_hwmon_temp1(struct device *dev,
2066                                 struct device_attribute *attr,
2067                                 char *buf)
2068 {
2069         struct asus_wmi *asus = dev_get_drvdata(dev);
2070         u32 value;
2071         int err;
2072
2073         err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_THERMAL_CTRL, &value);
2074         if (err < 0)
2075                 return err;
2076
2077         return sprintf(buf, "%ld\n",
2078                        deci_kelvin_to_millicelsius(value & 0xFFFF));
2079 }
2080
2081 /* GPU fan on modern ROG laptops */
2082 static ssize_t fan2_input_show(struct device *dev,
2083                                         struct device_attribute *attr,
2084                                         char *buf)
2085 {
2086         struct asus_wmi *asus = dev_get_drvdata(dev);
2087         int value;
2088         int ret;
2089
2090         ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL, &value);
2091         if (ret < 0)
2092                 return ret;
2093
2094         value &= 0xffff;
2095
2096         return sysfs_emit(buf, "%d\n", value * 100);
2097 }
2098
2099 static ssize_t fan2_label_show(struct device *dev,
2100                                           struct device_attribute *attr,
2101                                           char *buf)
2102 {
2103         return sysfs_emit(buf, "%s\n", ASUS_GPU_FAN_DESC);
2104 }
2105
2106 static ssize_t pwm2_enable_show(struct device *dev,
2107                                 struct device_attribute *attr,
2108                                 char *buf)
2109 {
2110         struct asus_wmi *asus = dev_get_drvdata(dev);
2111
2112         return sysfs_emit(buf, "%d\n", asus->gpu_fan_pwm_mode);
2113 }
2114
2115 static ssize_t pwm2_enable_store(struct device *dev,
2116                                  struct device_attribute *attr,
2117                                  const char *buf, size_t count)
2118 {
2119         struct asus_wmi *asus = dev_get_drvdata(dev);
2120         int state;
2121         int value;
2122         int ret;
2123         u32 retval;
2124
2125         ret = kstrtouint(buf, 10, &state);
2126         if (ret)
2127                 return ret;
2128
2129         switch (state) { /* standard documented hwmon values */
2130         case ASUS_FAN_CTRL_FULLSPEED:
2131                 value = 1;
2132                 break;
2133         case ASUS_FAN_CTRL_AUTO:
2134                 value = 0;
2135                 break;
2136         default:
2137                 return -EINVAL;
2138         }
2139
2140         ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
2141                                     value, &retval);
2142         if (ret)
2143                 return ret;
2144
2145         if (retval != 1)
2146                 return -EIO;
2147
2148         asus->gpu_fan_pwm_mode = state;
2149         return count;
2150 }
2151
2152 /* Fan1 */
2153 static DEVICE_ATTR_RW(pwm1);
2154 static DEVICE_ATTR_RW(pwm1_enable);
2155 static DEVICE_ATTR_RO(fan1_input);
2156 static DEVICE_ATTR_RO(fan1_label);
2157 /* Fan2 - GPU fan */
2158 static DEVICE_ATTR_RW(pwm2_enable);
2159 static DEVICE_ATTR_RO(fan2_input);
2160 static DEVICE_ATTR_RO(fan2_label);
2161
2162 /* Temperature */
2163 static DEVICE_ATTR(temp1_input, S_IRUGO, asus_hwmon_temp1, NULL);
2164
2165 static struct attribute *hwmon_attributes[] = {
2166         &dev_attr_pwm1.attr,
2167         &dev_attr_pwm1_enable.attr,
2168         &dev_attr_pwm2_enable.attr,
2169         &dev_attr_fan1_input.attr,
2170         &dev_attr_fan1_label.attr,
2171         &dev_attr_fan2_input.attr,
2172         &dev_attr_fan2_label.attr,
2173
2174         &dev_attr_temp1_input.attr,
2175         NULL
2176 };
2177
2178 static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
2179                                           struct attribute *attr, int idx)
2180 {
2181         struct device *dev = kobj_to_dev(kobj);
2182         struct asus_wmi *asus = dev_get_drvdata(dev->parent);
2183         u32 value = ASUS_WMI_UNSUPPORTED_METHOD;
2184
2185         if (attr == &dev_attr_pwm1.attr) {
2186                 if (asus->fan_type != FAN_TYPE_AGFN)
2187                         return 0;
2188         } else if (attr == &dev_attr_fan1_input.attr
2189             || attr == &dev_attr_fan1_label.attr
2190             || attr == &dev_attr_pwm1_enable.attr) {
2191                 if (asus->fan_type == FAN_TYPE_NONE)
2192                         return 0;
2193         } else if (attr == &dev_attr_fan2_input.attr
2194             || attr == &dev_attr_fan2_label.attr
2195             || attr == &dev_attr_pwm2_enable.attr) {
2196                 if (asus->gpu_fan_type == FAN_TYPE_NONE)
2197                         return 0;
2198         } else if (attr == &dev_attr_temp1_input.attr) {
2199                 int err = asus_wmi_get_devstate(asus,
2200                                                 ASUS_WMI_DEVID_THERMAL_CTRL,
2201                                                 &value);
2202
2203                 if (err < 0)
2204                         return 0; /* can't return negative here */
2205
2206                 /*
2207                  * If the temperature value in deci-Kelvin is near the absolute
2208                  * zero temperature, something is clearly wrong
2209                  */
2210                 if (value == 0 || value == 1)
2211                         return 0;
2212         }
2213
2214         return attr->mode;
2215 }
2216
2217 static const struct attribute_group hwmon_attribute_group = {
2218         .is_visible = asus_hwmon_sysfs_is_visible,
2219         .attrs = hwmon_attributes
2220 };
2221 __ATTRIBUTE_GROUPS(hwmon_attribute);
2222
2223 static int asus_wmi_hwmon_init(struct asus_wmi *asus)
2224 {
2225         struct device *dev = &asus->platform_device->dev;
2226         struct device *hwmon;
2227
2228         hwmon = devm_hwmon_device_register_with_groups(dev, "asus", asus,
2229                         hwmon_attribute_groups);
2230
2231         if (IS_ERR(hwmon)) {
2232                 pr_err("Could not register asus hwmon device\n");
2233                 return PTR_ERR(hwmon);
2234         }
2235         return 0;
2236 }
2237
2238 static int asus_wmi_fan_init(struct asus_wmi *asus)
2239 {
2240         asus->gpu_fan_type = FAN_TYPE_NONE;
2241         asus->fan_type = FAN_TYPE_NONE;
2242         asus->agfn_pwm = -1;
2243
2244         if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL))
2245                 asus->fan_type = FAN_TYPE_SPEC83;
2246         else if (asus_wmi_has_agfn_fan(asus))
2247                 asus->fan_type = FAN_TYPE_AGFN;
2248
2249         /*  Modern models like G713 also have GPU fan control */
2250         if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL))
2251                 asus->gpu_fan_type = FAN_TYPE_SPEC83;
2252
2253         if (asus->fan_type == FAN_TYPE_NONE)
2254                 return -ENODEV;
2255
2256         asus_fan_set_auto(asus);
2257         asus->fan_pwm_mode = ASUS_FAN_CTRL_AUTO;
2258         return 0;
2259 }
2260
2261 /* Fan mode *******************************************************************/
2262
2263 static int fan_boost_mode_check_present(struct asus_wmi *asus)
2264 {
2265         u32 result;
2266         int err;
2267
2268         asus->fan_boost_mode_available = false;
2269
2270         err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_BOOST_MODE,
2271                                     &result);
2272         if (err) {
2273                 if (err == -ENODEV)
2274                         return 0;
2275                 else
2276                         return err;
2277         }
2278
2279         if ((result & ASUS_WMI_DSTS_PRESENCE_BIT) &&
2280                         (result & ASUS_FAN_BOOST_MODES_MASK)) {
2281                 asus->fan_boost_mode_available = true;
2282                 asus->fan_boost_mode_mask = result & ASUS_FAN_BOOST_MODES_MASK;
2283         }
2284
2285         return 0;
2286 }
2287
2288 static int fan_boost_mode_write(struct asus_wmi *asus)
2289 {
2290         u32 retval;
2291         u8 value;
2292         int err;
2293
2294         value = asus->fan_boost_mode;
2295
2296         pr_info("Set fan boost mode: %u\n", value);
2297         err = asus_wmi_set_devstate(ASUS_WMI_DEVID_FAN_BOOST_MODE, value,
2298                                     &retval);
2299
2300         sysfs_notify(&asus->platform_device->dev.kobj, NULL,
2301                         "fan_boost_mode");
2302
2303         if (err) {
2304                 pr_warn("Failed to set fan boost mode: %d\n", err);
2305                 return err;
2306         }
2307
2308         if (retval != 1) {
2309                 pr_warn("Failed to set fan boost mode (retval): 0x%x\n",
2310                         retval);
2311                 return -EIO;
2312         }
2313
2314         return 0;
2315 }
2316
2317 static int fan_boost_mode_switch_next(struct asus_wmi *asus)
2318 {
2319         u8 mask = asus->fan_boost_mode_mask;
2320
2321         if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_NORMAL) {
2322                 if (mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK)
2323                         asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_OVERBOOST;
2324                 else if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK)
2325                         asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT;
2326         } else if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) {
2327                 if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK)
2328                         asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT;
2329                 else
2330                         asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL;
2331         } else {
2332                 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL;
2333         }
2334
2335         return fan_boost_mode_write(asus);
2336 }
2337
2338 static ssize_t fan_boost_mode_show(struct device *dev,
2339                                    struct device_attribute *attr, char *buf)
2340 {
2341         struct asus_wmi *asus = dev_get_drvdata(dev);
2342
2343         return sysfs_emit(buf, "%d\n", asus->fan_boost_mode);
2344 }
2345
2346 static ssize_t fan_boost_mode_store(struct device *dev,
2347                                     struct device_attribute *attr,
2348                                     const char *buf, size_t count)
2349 {
2350         struct asus_wmi *asus = dev_get_drvdata(dev);
2351         u8 mask = asus->fan_boost_mode_mask;
2352         u8 new_mode;
2353         int result;
2354
2355         result = kstrtou8(buf, 10, &new_mode);
2356         if (result < 0) {
2357                 pr_warn("Trying to store invalid value\n");
2358                 return result;
2359         }
2360
2361         if (new_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) {
2362                 if (!(mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK))
2363                         return -EINVAL;
2364         } else if (new_mode == ASUS_FAN_BOOST_MODE_SILENT) {
2365                 if (!(mask & ASUS_FAN_BOOST_MODE_SILENT_MASK))
2366                         return -EINVAL;
2367         } else if (new_mode != ASUS_FAN_BOOST_MODE_NORMAL) {
2368                 return -EINVAL;
2369         }
2370
2371         asus->fan_boost_mode = new_mode;
2372         fan_boost_mode_write(asus);
2373
2374         return count;
2375 }
2376
2377 // Fan boost mode: 0 - normal, 1 - overboost, 2 - silent
2378 static DEVICE_ATTR_RW(fan_boost_mode);
2379
2380 /* Custom fan curves **********************************************************/
2381
2382 static void fan_curve_copy_from_buf(struct fan_curve_data *data, u8 *buf)
2383 {
2384         int i;
2385
2386         for (i = 0; i < FAN_CURVE_POINTS; i++) {
2387                 data->temps[i] = buf[i];
2388         }
2389
2390         for (i = 0; i < FAN_CURVE_POINTS; i++) {
2391                 data->percents[i] =
2392                         255 * buf[i + FAN_CURVE_POINTS] / 100;
2393         }
2394 }
2395
2396 static int fan_curve_get_factory_default(struct asus_wmi *asus, u32 fan_dev)
2397 {
2398         struct fan_curve_data *curves;
2399         u8 buf[FAN_CURVE_BUF_LEN];
2400         int fan_idx = 0;
2401         u8 mode = 0;
2402         int err;
2403
2404         if (asus->throttle_thermal_policy_available)
2405                 mode = asus->throttle_thermal_policy_mode;
2406         /* DEVID_<C/G>PU_FAN_CURVE is switched for OVERBOOST vs SILENT */
2407         if (mode == 2)
2408                 mode = 1;
2409         else if (mode == 1)
2410                 mode = 2;
2411
2412         if (fan_dev == ASUS_WMI_DEVID_GPU_FAN_CURVE)
2413                 fan_idx = FAN_CURVE_DEV_GPU;
2414
2415         curves = &asus->custom_fan_curves[fan_idx];
2416         err = asus_wmi_evaluate_method_buf(asus->dsts_id, fan_dev, mode, buf,
2417                                            FAN_CURVE_BUF_LEN);
2418         if (err) {
2419                 pr_warn("%s (0x%08x) failed: %d\n", __func__, fan_dev, err);
2420                 return err;
2421         }
2422
2423         fan_curve_copy_from_buf(curves, buf);
2424         curves->device_id = fan_dev;
2425
2426         return 0;
2427 }
2428
2429 /* Check if capability exists, and populate defaults */
2430 static int fan_curve_check_present(struct asus_wmi *asus, bool *available,
2431                                    u32 fan_dev)
2432 {
2433         int err;
2434
2435         *available = false;
2436
2437         err = fan_curve_get_factory_default(asus, fan_dev);
2438         if (err) {
2439                 return 0;
2440         }
2441
2442         *available = true;
2443         return 0;
2444 }
2445
2446 /* Determine which fan the attribute is for if SENSOR_ATTR */
2447 static struct fan_curve_data *fan_curve_attr_select(struct asus_wmi *asus,
2448                                               struct device_attribute *attr)
2449 {
2450         int index = to_sensor_dev_attr(attr)->index;
2451
2452         return &asus->custom_fan_curves[index & FAN_CURVE_DEV_GPU];
2453 }
2454
2455 /* Determine which fan the attribute is for if SENSOR_ATTR_2 */
2456 static struct fan_curve_data *fan_curve_attr_2_select(struct asus_wmi *asus,
2457                                             struct device_attribute *attr)
2458 {
2459         int nr = to_sensor_dev_attr_2(attr)->nr;
2460
2461         return &asus->custom_fan_curves[nr & FAN_CURVE_DEV_GPU];
2462 }
2463
2464 static ssize_t fan_curve_show(struct device *dev,
2465                               struct device_attribute *attr, char *buf)
2466 {
2467         struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr);
2468         struct asus_wmi *asus = dev_get_drvdata(dev);
2469         struct fan_curve_data *data;
2470         int value, index, nr;
2471
2472         data = fan_curve_attr_2_select(asus, attr);
2473         index = dev_attr->index;
2474         nr = dev_attr->nr;
2475
2476         if (nr & FAN_CURVE_PWM_MASK)
2477                 value = data->percents[index];
2478         else
2479                 value = data->temps[index];
2480
2481         return sysfs_emit(buf, "%d\n", value);
2482 }
2483
2484 /*
2485  * "fan_dev" is the related WMI method such as ASUS_WMI_DEVID_CPU_FAN_CURVE.
2486  */
2487 static int fan_curve_write(struct asus_wmi *asus,
2488                            struct fan_curve_data *data)
2489 {
2490         u32 arg1 = 0, arg2 = 0, arg3 = 0, arg4 = 0;
2491         u8 *percents = data->percents;
2492         u8 *temps = data->temps;
2493         int ret, i, shift = 0;
2494
2495         if (!data->enabled)
2496                 return 0;
2497
2498         for (i = 0; i < FAN_CURVE_POINTS / 2; i++) {
2499                 arg1 += (temps[i]) << shift;
2500                 arg2 += (temps[i + 4]) << shift;
2501                 /* Scale to percentage for device */
2502                 arg3 += (100 * percents[i] / 255) << shift;
2503                 arg4 += (100 * percents[i + 4] / 255) << shift;
2504                 shift += 8;
2505         }
2506
2507         return asus_wmi_evaluate_method5(ASUS_WMI_METHODID_DEVS,
2508                                          data->device_id,
2509                                          arg1, arg2, arg3, arg4, &ret);
2510 }
2511
2512 static ssize_t fan_curve_store(struct device *dev,
2513                                struct device_attribute *attr, const char *buf,
2514                                size_t count)
2515 {
2516         struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr);
2517         struct asus_wmi *asus = dev_get_drvdata(dev);
2518         struct fan_curve_data *data;
2519         u8 value;
2520         int err;
2521
2522         int pwm = dev_attr->nr & FAN_CURVE_PWM_MASK;
2523         int index = dev_attr->index;
2524
2525         data = fan_curve_attr_2_select(asus, attr);
2526
2527         err = kstrtou8(buf, 10, &value);
2528         if (err < 0)
2529                 return err;
2530
2531         if (pwm) {
2532                 data->percents[index] = value;
2533         } else {
2534                 data->temps[index] = value;
2535         }
2536
2537         /*
2538          * Mark as disabled so the user has to explicitly enable to apply a
2539          * changed fan curve. This prevents potential lockups from writing out
2540          * many changes as one-write-per-change.
2541          */
2542         data->enabled = false;
2543
2544         return count;
2545 }
2546
2547 static ssize_t fan_curve_enable_show(struct device *dev,
2548                                      struct device_attribute *attr, char *buf)
2549 {
2550         struct asus_wmi *asus = dev_get_drvdata(dev);
2551         struct fan_curve_data *data;
2552         int out = 2;
2553
2554         data = fan_curve_attr_select(asus, attr);
2555
2556         if (data->enabled)
2557                 out = 1;
2558
2559         return sysfs_emit(buf, "%d\n", out);
2560 }
2561
2562 static ssize_t fan_curve_enable_store(struct device *dev,
2563                                       struct device_attribute *attr,
2564                                       const char *buf, size_t count)
2565 {
2566         struct asus_wmi *asus = dev_get_drvdata(dev);
2567         struct fan_curve_data *data;
2568         int value, err;
2569
2570         data = fan_curve_attr_select(asus, attr);
2571
2572         err = kstrtoint(buf, 10, &value);
2573         if (err < 0)
2574                 return err;
2575
2576         switch (value) {
2577         case 1:
2578                 data->enabled = true;
2579                 break;
2580         case 2:
2581                 data->enabled = false;
2582                 break;
2583         /*
2584          * Auto + reset the fan curve data to defaults. Make it an explicit
2585          * option so that users don't accidentally overwrite a set fan curve.
2586          */
2587         case 3:
2588                 err = fan_curve_get_factory_default(asus, data->device_id);
2589                 if (err)
2590                         return err;
2591                 data->enabled = false;
2592                 break;
2593         default:
2594                 return -EINVAL;
2595         }
2596
2597         if (data->enabled) {
2598                 err = fan_curve_write(asus, data);
2599                 if (err)
2600                         return err;
2601         } else {
2602                 /*
2603                  * For machines with throttle this is the only way to reset fans
2604                  * to default mode of operation (does not erase curve data).
2605                  */
2606                 if (asus->throttle_thermal_policy_available) {
2607                         err = throttle_thermal_policy_write(asus);
2608                         if (err)
2609                                 return err;
2610                 /* Similar is true for laptops with this fan */
2611                 } else if (asus->fan_type == FAN_TYPE_SPEC83) {
2612                         err = asus_fan_set_auto(asus);
2613                         if (err)
2614                                 return err;
2615                 } else {
2616                         /* Safeguard against fautly ACPI tables */
2617                         err = fan_curve_get_factory_default(asus, data->device_id);
2618                         if (err)
2619                                 return err;
2620                         err = fan_curve_write(asus, data);
2621                         if (err)
2622                                 return err;
2623                 }
2624         }
2625         return count;
2626 }
2627
2628 /* CPU */
2629 static SENSOR_DEVICE_ATTR_RW(pwm1_enable, fan_curve_enable, FAN_CURVE_DEV_CPU);
2630 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_temp, fan_curve,
2631                                FAN_CURVE_DEV_CPU, 0);
2632 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_temp, fan_curve,
2633                                FAN_CURVE_DEV_CPU, 1);
2634 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_temp, fan_curve,
2635                                FAN_CURVE_DEV_CPU, 2);
2636 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_temp, fan_curve,
2637                                FAN_CURVE_DEV_CPU, 3);
2638 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_temp, fan_curve,
2639                                FAN_CURVE_DEV_CPU, 4);
2640 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_temp, fan_curve,
2641                                FAN_CURVE_DEV_CPU, 5);
2642 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_temp, fan_curve,
2643                                FAN_CURVE_DEV_CPU, 6);
2644 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_temp, fan_curve,
2645                                FAN_CURVE_DEV_CPU, 7);
2646
2647 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_pwm, fan_curve,
2648                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 0);
2649 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_pwm, fan_curve,
2650                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 1);
2651 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_pwm, fan_curve,
2652                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 2);
2653 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_pwm, fan_curve,
2654                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 3);
2655 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_pwm, fan_curve,
2656                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 4);
2657 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_pwm, fan_curve,
2658                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 5);
2659 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_pwm, fan_curve,
2660                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 6);
2661 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_pwm, fan_curve,
2662                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 7);
2663
2664 /* GPU */
2665 static SENSOR_DEVICE_ATTR_RW(pwm2_enable, fan_curve_enable, FAN_CURVE_DEV_GPU);
2666 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_temp, fan_curve,
2667                                FAN_CURVE_DEV_GPU, 0);
2668 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_temp, fan_curve,
2669                                FAN_CURVE_DEV_GPU, 1);
2670 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_temp, fan_curve,
2671                                FAN_CURVE_DEV_GPU, 2);
2672 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_temp, fan_curve,
2673                                FAN_CURVE_DEV_GPU, 3);
2674 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_temp, fan_curve,
2675                                FAN_CURVE_DEV_GPU, 4);
2676 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_temp, fan_curve,
2677                                FAN_CURVE_DEV_GPU, 5);
2678 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_temp, fan_curve,
2679                                FAN_CURVE_DEV_GPU, 6);
2680 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_temp, fan_curve,
2681                                FAN_CURVE_DEV_GPU, 7);
2682
2683 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_pwm, fan_curve,
2684                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 0);
2685 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_pwm, fan_curve,
2686                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 1);
2687 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_pwm, fan_curve,
2688                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 2);
2689 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_pwm, fan_curve,
2690                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 3);
2691 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_pwm, fan_curve,
2692                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 4);
2693 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_pwm, fan_curve,
2694                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 5);
2695 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_pwm, fan_curve,
2696                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 6);
2697 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_pwm, fan_curve,
2698                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 7);
2699
2700 static struct attribute *asus_fan_curve_attr[] = {
2701         /* CPU */
2702         &sensor_dev_attr_pwm1_enable.dev_attr.attr,
2703         &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
2704         &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
2705         &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
2706         &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
2707         &sensor_dev_attr_pwm1_auto_point5_temp.dev_attr.attr,
2708         &sensor_dev_attr_pwm1_auto_point6_temp.dev_attr.attr,
2709         &sensor_dev_attr_pwm1_auto_point7_temp.dev_attr.attr,
2710         &sensor_dev_attr_pwm1_auto_point8_temp.dev_attr.attr,
2711         &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
2712         &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
2713         &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
2714         &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
2715         &sensor_dev_attr_pwm1_auto_point5_pwm.dev_attr.attr,
2716         &sensor_dev_attr_pwm1_auto_point6_pwm.dev_attr.attr,
2717         &sensor_dev_attr_pwm1_auto_point7_pwm.dev_attr.attr,
2718         &sensor_dev_attr_pwm1_auto_point8_pwm.dev_attr.attr,
2719         /* GPU */
2720         &sensor_dev_attr_pwm2_enable.dev_attr.attr,
2721         &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
2722         &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
2723         &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
2724         &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
2725         &sensor_dev_attr_pwm2_auto_point5_temp.dev_attr.attr,
2726         &sensor_dev_attr_pwm2_auto_point6_temp.dev_attr.attr,
2727         &sensor_dev_attr_pwm2_auto_point7_temp.dev_attr.attr,
2728         &sensor_dev_attr_pwm2_auto_point8_temp.dev_attr.attr,
2729         &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
2730         &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
2731         &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
2732         &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,
2733         &sensor_dev_attr_pwm2_auto_point5_pwm.dev_attr.attr,
2734         &sensor_dev_attr_pwm2_auto_point6_pwm.dev_attr.attr,
2735         &sensor_dev_attr_pwm2_auto_point7_pwm.dev_attr.attr,
2736         &sensor_dev_attr_pwm2_auto_point8_pwm.dev_attr.attr,
2737         NULL
2738 };
2739
2740 static umode_t asus_fan_curve_is_visible(struct kobject *kobj,
2741                                          struct attribute *attr, int idx)
2742 {
2743         struct device *dev = kobj_to_dev(kobj);
2744         struct asus_wmi *asus = dev_get_drvdata(dev->parent);
2745
2746         /*
2747          * Check the char instead of casting attr as there are two attr types
2748          * involved here (attr1 and attr2)
2749          */
2750         if (asus->cpu_fan_curve_available && attr->name[3] == '1')
2751                 return 0644;
2752
2753         if (asus->gpu_fan_curve_available && attr->name[3] == '2')
2754                 return 0644;
2755
2756         return 0;
2757 }
2758
2759 static const struct attribute_group asus_fan_curve_attr_group = {
2760         .is_visible = asus_fan_curve_is_visible,
2761         .attrs = asus_fan_curve_attr,
2762 };
2763 __ATTRIBUTE_GROUPS(asus_fan_curve_attr);
2764
2765 /*
2766  * Must be initialised after throttle_thermal_policy_check_present() as
2767  * we check the status of throttle_thermal_policy_available during init.
2768  */
2769 static int asus_wmi_custom_fan_curve_init(struct asus_wmi *asus)
2770 {
2771         struct device *dev = &asus->platform_device->dev;
2772         struct device *hwmon;
2773         int err;
2774
2775         err = fan_curve_check_present(asus, &asus->cpu_fan_curve_available,
2776                                       ASUS_WMI_DEVID_CPU_FAN_CURVE);
2777         if (err)
2778                 return err;
2779
2780         err = fan_curve_check_present(asus, &asus->gpu_fan_curve_available,
2781                                       ASUS_WMI_DEVID_GPU_FAN_CURVE);
2782         if (err)
2783                 return err;
2784
2785         if (!asus->cpu_fan_curve_available && !asus->gpu_fan_curve_available)
2786                 return 0;
2787
2788         hwmon = devm_hwmon_device_register_with_groups(
2789                 dev, "asus_custom_fan_curve", asus, asus_fan_curve_attr_groups);
2790
2791         if (IS_ERR(hwmon)) {
2792                 dev_err(dev,
2793                         "Could not register asus_custom_fan_curve device\n");
2794                 return PTR_ERR(hwmon);
2795         }
2796
2797         return 0;
2798 }
2799
2800 /* Throttle thermal policy ****************************************************/
2801
2802 static int throttle_thermal_policy_check_present(struct asus_wmi *asus)
2803 {
2804         u32 result;
2805         int err;
2806
2807         asus->throttle_thermal_policy_available = false;
2808
2809         err = asus_wmi_get_devstate(asus,
2810                                     ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY,
2811                                     &result);
2812         if (err) {
2813                 if (err == -ENODEV)
2814                         return 0;
2815                 return err;
2816         }
2817
2818         if (result & ASUS_WMI_DSTS_PRESENCE_BIT)
2819                 asus->throttle_thermal_policy_available = true;
2820
2821         return 0;
2822 }
2823
2824 static int throttle_thermal_policy_write(struct asus_wmi *asus)
2825 {
2826         int err;
2827         u8 value;
2828         u32 retval;
2829
2830         value = asus->throttle_thermal_policy_mode;
2831
2832         err = asus_wmi_set_devstate(ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY,
2833                                     value, &retval);
2834
2835         sysfs_notify(&asus->platform_device->dev.kobj, NULL,
2836                         "throttle_thermal_policy");
2837
2838         if (err) {
2839                 pr_warn("Failed to set throttle thermal policy: %d\n", err);
2840                 return err;
2841         }
2842
2843         if (retval != 1) {
2844                 pr_warn("Failed to set throttle thermal policy (retval): 0x%x\n",
2845                         retval);
2846                 return -EIO;
2847         }
2848
2849         /* Must set to disabled if mode is toggled */
2850         if (asus->cpu_fan_curve_available)
2851                 asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false;
2852         if (asus->gpu_fan_curve_available)
2853                 asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false;
2854
2855         return 0;
2856 }
2857
2858 static int throttle_thermal_policy_set_default(struct asus_wmi *asus)
2859 {
2860         if (!asus->throttle_thermal_policy_available)
2861                 return 0;
2862
2863         asus->throttle_thermal_policy_mode = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
2864         return throttle_thermal_policy_write(asus);
2865 }
2866
2867 static int throttle_thermal_policy_switch_next(struct asus_wmi *asus)
2868 {
2869         u8 new_mode = asus->throttle_thermal_policy_mode + 1;
2870         int err;
2871
2872         if (new_mode > ASUS_THROTTLE_THERMAL_POLICY_SILENT)
2873                 new_mode = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
2874
2875         asus->throttle_thermal_policy_mode = new_mode;
2876         err = throttle_thermal_policy_write(asus);
2877         if (err)
2878                 return err;
2879
2880         /*
2881          * Ensure that platform_profile updates userspace with the change to ensure
2882          * that platform_profile and throttle_thermal_policy_mode are in sync.
2883          */
2884         platform_profile_notify();
2885
2886         return 0;
2887 }
2888
2889 static ssize_t throttle_thermal_policy_show(struct device *dev,
2890                                    struct device_attribute *attr, char *buf)
2891 {
2892         struct asus_wmi *asus = dev_get_drvdata(dev);
2893         u8 mode = asus->throttle_thermal_policy_mode;
2894
2895         return sysfs_emit(buf, "%d\n", mode);
2896 }
2897
2898 static ssize_t throttle_thermal_policy_store(struct device *dev,
2899                                     struct device_attribute *attr,
2900                                     const char *buf, size_t count)
2901 {
2902         struct asus_wmi *asus = dev_get_drvdata(dev);
2903         u8 new_mode;
2904         int result;
2905         int err;
2906
2907         result = kstrtou8(buf, 10, &new_mode);
2908         if (result < 0)
2909                 return result;
2910
2911         if (new_mode > ASUS_THROTTLE_THERMAL_POLICY_SILENT)
2912                 return -EINVAL;
2913
2914         asus->throttle_thermal_policy_mode = new_mode;
2915         err = throttle_thermal_policy_write(asus);
2916         if (err)
2917                 return err;
2918
2919         /*
2920          * Ensure that platform_profile updates userspace with the change to ensure
2921          * that platform_profile and throttle_thermal_policy_mode are in sync.
2922          */
2923         platform_profile_notify();
2924
2925         return count;
2926 }
2927
2928 // Throttle thermal policy: 0 - default, 1 - overboost, 2 - silent
2929 static DEVICE_ATTR_RW(throttle_thermal_policy);
2930
2931 /* Platform profile ***********************************************************/
2932 static int asus_wmi_platform_profile_get(struct platform_profile_handler *pprof,
2933                                         enum platform_profile_option *profile)
2934 {
2935         struct asus_wmi *asus;
2936         int tp;
2937
2938         asus = container_of(pprof, struct asus_wmi, platform_profile_handler);
2939
2940         tp = asus->throttle_thermal_policy_mode;
2941
2942         switch (tp) {
2943         case ASUS_THROTTLE_THERMAL_POLICY_DEFAULT:
2944                 *profile = PLATFORM_PROFILE_BALANCED;
2945                 break;
2946         case ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST:
2947                 *profile = PLATFORM_PROFILE_PERFORMANCE;
2948                 break;
2949         case ASUS_THROTTLE_THERMAL_POLICY_SILENT:
2950                 *profile = PLATFORM_PROFILE_QUIET;
2951                 break;
2952         default:
2953                 return -EINVAL;
2954         }
2955
2956         return 0;
2957 }
2958
2959 static int asus_wmi_platform_profile_set(struct platform_profile_handler *pprof,
2960                                         enum platform_profile_option profile)
2961 {
2962         struct asus_wmi *asus;
2963         int tp;
2964
2965         asus = container_of(pprof, struct asus_wmi, platform_profile_handler);
2966
2967         switch (profile) {
2968         case PLATFORM_PROFILE_PERFORMANCE:
2969                 tp = ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST;
2970                 break;
2971         case PLATFORM_PROFILE_BALANCED:
2972                 tp = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
2973                 break;
2974         case PLATFORM_PROFILE_QUIET:
2975                 tp = ASUS_THROTTLE_THERMAL_POLICY_SILENT;
2976                 break;
2977         default:
2978                 return -EOPNOTSUPP;
2979         }
2980
2981         asus->throttle_thermal_policy_mode = tp;
2982         return throttle_thermal_policy_write(asus);
2983 }
2984
2985 static int platform_profile_setup(struct asus_wmi *asus)
2986 {
2987         struct device *dev = &asus->platform_device->dev;
2988         int err;
2989
2990         /*
2991          * Not an error if a component platform_profile relies on is unavailable
2992          * so early return, skipping the setup of platform_profile.
2993          */
2994         if (!asus->throttle_thermal_policy_available)
2995                 return 0;
2996
2997         dev_info(dev, "Using throttle_thermal_policy for platform_profile support\n");
2998
2999         asus->platform_profile_handler.profile_get = asus_wmi_platform_profile_get;
3000         asus->platform_profile_handler.profile_set = asus_wmi_platform_profile_set;
3001
3002         set_bit(PLATFORM_PROFILE_QUIET, asus->platform_profile_handler.choices);
3003         set_bit(PLATFORM_PROFILE_BALANCED,
3004                 asus->platform_profile_handler.choices);
3005         set_bit(PLATFORM_PROFILE_PERFORMANCE,
3006                 asus->platform_profile_handler.choices);
3007
3008         err = platform_profile_register(&asus->platform_profile_handler);
3009         if (err)
3010                 return err;
3011
3012         asus->platform_profile_support = true;
3013         return 0;
3014 }
3015
3016 /* Backlight ******************************************************************/
3017
3018 static int read_backlight_power(struct asus_wmi *asus)
3019 {
3020         int ret;
3021
3022         if (asus->driver->quirks->store_backlight_power)
3023                 ret = !asus->driver->panel_power;
3024         else
3025                 ret = asus_wmi_get_devstate_simple(asus,
3026                                                    ASUS_WMI_DEVID_BACKLIGHT);
3027
3028         if (ret < 0)
3029                 return ret;
3030
3031         return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
3032 }
3033
3034 static int read_brightness_max(struct asus_wmi *asus)
3035 {
3036         u32 retval;
3037         int err;
3038
3039         err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
3040         if (err < 0)
3041                 return err;
3042
3043         retval = retval & ASUS_WMI_DSTS_MAX_BRIGTH_MASK;
3044         retval >>= 8;
3045
3046         if (!retval)
3047                 return -ENODEV;
3048
3049         return retval;
3050 }
3051
3052 static int read_brightness(struct backlight_device *bd)
3053 {
3054         struct asus_wmi *asus = bl_get_data(bd);
3055         u32 retval;
3056         int err;
3057
3058         err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
3059         if (err < 0)
3060                 return err;
3061
3062         return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
3063 }
3064
3065 static u32 get_scalar_command(struct backlight_device *bd)
3066 {
3067         struct asus_wmi *asus = bl_get_data(bd);
3068         u32 ctrl_param = 0;
3069
3070         if ((asus->driver->brightness < bd->props.brightness) ||
3071             bd->props.brightness == bd->props.max_brightness)
3072                 ctrl_param = 0x00008001;
3073         else if ((asus->driver->brightness > bd->props.brightness) ||
3074                  bd->props.brightness == 0)
3075                 ctrl_param = 0x00008000;
3076
3077         asus->driver->brightness = bd->props.brightness;
3078
3079         return ctrl_param;
3080 }
3081
3082 static int update_bl_status(struct backlight_device *bd)
3083 {
3084         struct asus_wmi *asus = bl_get_data(bd);
3085         u32 ctrl_param;
3086         int power, err = 0;
3087
3088         power = read_backlight_power(asus);
3089         if (power != -ENODEV && bd->props.power != power) {
3090                 ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK);
3091                 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT,
3092                                             ctrl_param, NULL);
3093                 if (asus->driver->quirks->store_backlight_power)
3094                         asus->driver->panel_power = bd->props.power;
3095
3096                 /* When using scalar brightness, updating the brightness
3097                  * will mess with the backlight power */
3098                 if (asus->driver->quirks->scalar_panel_brightness)
3099                         return err;
3100         }
3101
3102         if (asus->driver->quirks->scalar_panel_brightness)
3103                 ctrl_param = get_scalar_command(bd);
3104         else
3105                 ctrl_param = bd->props.brightness;
3106
3107         err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS,
3108                                     ctrl_param, NULL);
3109
3110         return err;
3111 }
3112
3113 static const struct backlight_ops asus_wmi_bl_ops = {
3114         .get_brightness = read_brightness,
3115         .update_status = update_bl_status,
3116 };
3117
3118 static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code)
3119 {
3120         struct backlight_device *bd = asus->backlight_device;
3121         int old = bd->props.brightness;
3122         int new = old;
3123
3124         if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
3125                 new = code - NOTIFY_BRNUP_MIN + 1;
3126         else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
3127                 new = code - NOTIFY_BRNDOWN_MIN;
3128
3129         bd->props.brightness = new;
3130         backlight_update_status(bd);
3131         backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
3132
3133         return old;
3134 }
3135
3136 static int asus_wmi_backlight_init(struct asus_wmi *asus)
3137 {
3138         struct backlight_device *bd;
3139         struct backlight_properties props;
3140         int max;
3141         int power;
3142
3143         max = read_brightness_max(asus);
3144         if (max < 0)
3145                 return max;
3146
3147         power = read_backlight_power(asus);
3148         if (power == -ENODEV)
3149                 power = FB_BLANK_UNBLANK;
3150         else if (power < 0)
3151                 return power;
3152
3153         memset(&props, 0, sizeof(struct backlight_properties));
3154         props.type = BACKLIGHT_PLATFORM;
3155         props.max_brightness = max;
3156         bd = backlight_device_register(asus->driver->name,
3157                                        &asus->platform_device->dev, asus,
3158                                        &asus_wmi_bl_ops, &props);
3159         if (IS_ERR(bd)) {
3160                 pr_err("Could not register backlight device\n");
3161                 return PTR_ERR(bd);
3162         }
3163
3164         asus->backlight_device = bd;
3165
3166         if (asus->driver->quirks->store_backlight_power)
3167                 asus->driver->panel_power = power;
3168
3169         bd->props.brightness = read_brightness(bd);
3170         bd->props.power = power;
3171         backlight_update_status(bd);
3172
3173         asus->driver->brightness = bd->props.brightness;
3174
3175         return 0;
3176 }
3177
3178 static void asus_wmi_backlight_exit(struct asus_wmi *asus)
3179 {
3180         backlight_device_unregister(asus->backlight_device);
3181
3182         asus->backlight_device = NULL;
3183 }
3184
3185 static int is_display_toggle(int code)
3186 {
3187         /* display toggle keys */
3188         if ((code >= 0x61 && code <= 0x67) ||
3189             (code >= 0x8c && code <= 0x93) ||
3190             (code >= 0xa0 && code <= 0xa7) ||
3191             (code >= 0xd0 && code <= 0xd5))
3192                 return 1;
3193
3194         return 0;
3195 }
3196
3197 /* Fn-lock ********************************************************************/
3198
3199 static bool asus_wmi_has_fnlock_key(struct asus_wmi *asus)
3200 {
3201         u32 result;
3202
3203         asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FNLOCK, &result);
3204
3205         return (result & ASUS_WMI_DSTS_PRESENCE_BIT) &&
3206                 !(result & ASUS_WMI_FNLOCK_BIOS_DISABLED);
3207 }
3208
3209 static void asus_wmi_fnlock_update(struct asus_wmi *asus)
3210 {
3211         int mode = asus->fnlock_locked;
3212
3213         asus_wmi_set_devstate(ASUS_WMI_DEVID_FNLOCK, mode, NULL);
3214 }
3215
3216 /* WMI events *****************************************************************/
3217
3218 static int asus_wmi_get_event_code(u32 value)
3219 {
3220         struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
3221         union acpi_object *obj;
3222         acpi_status status;
3223         int code;
3224
3225         status = wmi_get_event_data(value, &response);
3226         if (ACPI_FAILURE(status)) {
3227                 pr_warn("Failed to get WMI notify code: %s\n",
3228                                 acpi_format_exception(status));
3229                 return -EIO;
3230         }
3231
3232         obj = (union acpi_object *)response.pointer;
3233
3234         if (obj && obj->type == ACPI_TYPE_INTEGER)
3235                 code = (int)(obj->integer.value & WMI_EVENT_MASK);
3236         else
3237                 code = -EIO;
3238
3239         kfree(obj);
3240         return code;
3241 }
3242
3243 static void asus_wmi_handle_event_code(int code, struct asus_wmi *asus)
3244 {
3245         unsigned int key_value = 1;
3246         bool autorelease = 1;
3247         int orig_code = code;
3248
3249         if (asus->driver->key_filter) {
3250                 asus->driver->key_filter(asus->driver, &code, &key_value,
3251                                          &autorelease);
3252                 if (code == ASUS_WMI_KEY_IGNORE)
3253                         return;
3254         }
3255
3256         if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
3257                 code = ASUS_WMI_BRN_UP;
3258         else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
3259                 code = ASUS_WMI_BRN_DOWN;
3260
3261         if (code == ASUS_WMI_BRN_DOWN || code == ASUS_WMI_BRN_UP) {
3262                 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
3263                         asus_wmi_backlight_notify(asus, orig_code);
3264                         return;
3265                 }
3266         }
3267
3268         if (code == NOTIFY_KBD_BRTUP) {
3269                 kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1);
3270                 return;
3271         }
3272         if (code == NOTIFY_KBD_BRTDWN) {
3273                 kbd_led_set_by_kbd(asus, asus->kbd_led_wk - 1);
3274                 return;
3275         }
3276         if (code == NOTIFY_KBD_BRTTOGGLE) {
3277                 if (asus->kbd_led_wk == asus->kbd_led.max_brightness)
3278                         kbd_led_set_by_kbd(asus, 0);
3279                 else
3280                         kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1);
3281                 return;
3282         }
3283
3284         if (code == NOTIFY_FNLOCK_TOGGLE) {
3285                 asus->fnlock_locked = !asus->fnlock_locked;
3286                 asus_wmi_fnlock_update(asus);
3287                 return;
3288         }
3289
3290         if (code == asus->tablet_switch_event_code) {
3291                 asus_wmi_tablet_mode_get_state(asus);
3292                 return;
3293         }
3294
3295         if (code == NOTIFY_KBD_FBM || code == NOTIFY_KBD_TTP) {
3296                 if (asus->fan_boost_mode_available)
3297                         fan_boost_mode_switch_next(asus);
3298                 if (asus->throttle_thermal_policy_available)
3299                         throttle_thermal_policy_switch_next(asus);
3300                 return;
3301
3302         }
3303
3304         if (is_display_toggle(code) && asus->driver->quirks->no_display_toggle)
3305                 return;
3306
3307         if (!sparse_keymap_report_event(asus->inputdev, code,
3308                                         key_value, autorelease))
3309                 pr_info("Unknown key code 0x%x\n", code);
3310 }
3311
3312 static void asus_wmi_notify(u32 value, void *context)
3313 {
3314         struct asus_wmi *asus = context;
3315         int code;
3316         int i;
3317
3318         for (i = 0; i < WMI_EVENT_QUEUE_SIZE + 1; i++) {
3319                 code = asus_wmi_get_event_code(value);
3320                 if (code < 0) {
3321                         pr_warn("Failed to get notify code: %d\n", code);
3322                         return;
3323                 }
3324
3325                 if (code == WMI_EVENT_QUEUE_END || code == WMI_EVENT_MASK)
3326                         return;
3327
3328                 asus_wmi_handle_event_code(code, asus);
3329
3330                 /*
3331                  * Double check that queue is present:
3332                  * ATK (with queue) uses 0xff, ASUSWMI (without) 0xd2.
3333                  */
3334                 if (!asus->wmi_event_queue || value != WMI_EVENT_VALUE_ATK)
3335                         return;
3336         }
3337
3338         pr_warn("Failed to process event queue, last code: 0x%x\n", code);
3339 }
3340
3341 static int asus_wmi_notify_queue_flush(struct asus_wmi *asus)
3342 {
3343         int code;
3344         int i;
3345
3346         for (i = 0; i < WMI_EVENT_QUEUE_SIZE + 1; i++) {
3347                 code = asus_wmi_get_event_code(WMI_EVENT_VALUE_ATK);
3348                 if (code < 0) {
3349                         pr_warn("Failed to get event during flush: %d\n", code);
3350                         return code;
3351                 }
3352
3353                 if (code == WMI_EVENT_QUEUE_END || code == WMI_EVENT_MASK)
3354                         return 0;
3355         }
3356
3357         pr_warn("Failed to flush event queue\n");
3358         return -EIO;
3359 }
3360
3361 /* Sysfs **********************************************************************/
3362
3363 static ssize_t store_sys_wmi(struct asus_wmi *asus, int devid,
3364                              const char *buf, size_t count)
3365 {
3366         u32 retval;
3367         int err, value;
3368
3369         value = asus_wmi_get_devstate_simple(asus, devid);
3370         if (value < 0)
3371                 return value;
3372
3373         err = kstrtoint(buf, 0, &value);
3374         if (err)
3375                 return err;
3376
3377         err = asus_wmi_set_devstate(devid, value, &retval);
3378         if (err < 0)
3379                 return err;
3380
3381         return count;
3382 }
3383
3384 static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
3385 {
3386         int value = asus_wmi_get_devstate_simple(asus, devid);
3387
3388         if (value < 0)
3389                 return value;
3390
3391         return sprintf(buf, "%d\n", value);
3392 }
3393
3394 #define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm)                  \
3395         static ssize_t show_##_name(struct device *dev,                 \
3396                                     struct device_attribute *attr,      \
3397                                     char *buf)                          \
3398         {                                                               \
3399                 struct asus_wmi *asus = dev_get_drvdata(dev);           \
3400                                                                         \
3401                 return show_sys_wmi(asus, _cm, buf);                    \
3402         }                                                               \
3403         static ssize_t store_##_name(struct device *dev,                \
3404                                      struct device_attribute *attr,     \
3405                                      const char *buf, size_t count)     \
3406         {                                                               \
3407                 struct asus_wmi *asus = dev_get_drvdata(dev);           \
3408                                                                         \
3409                 return store_sys_wmi(asus, _cm, buf, count);            \
3410         }                                                               \
3411         static struct device_attribute dev_attr_##_name = {             \
3412                 .attr = {                                               \
3413                         .name = __stringify(_name),                     \
3414                         .mode = _mode },                                \
3415                 .show   = show_##_name,                                 \
3416                 .store  = store_##_name,                                \
3417         }
3418
3419 ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD);
3420 ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA);
3421 ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
3422 ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume, 0644, ASUS_WMI_DEVID_LID_RESUME);
3423 ASUS_WMI_CREATE_DEVICE_ATTR(als_enable, 0644, ASUS_WMI_DEVID_ALS_ENABLE);
3424
3425 static ssize_t cpufv_store(struct device *dev, struct device_attribute *attr,
3426                            const char *buf, size_t count)
3427 {
3428         int value, rv;
3429
3430         rv = kstrtoint(buf, 0, &value);
3431         if (rv)
3432                 return rv;
3433
3434         if (value < 0 || value > 2)
3435                 return -EINVAL;
3436
3437         rv = asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL);
3438         if (rv < 0)
3439                 return rv;
3440
3441         return count;
3442 }
3443
3444 static DEVICE_ATTR_WO(cpufv);
3445
3446 static struct attribute *platform_attributes[] = {
3447         &dev_attr_cpufv.attr,
3448         &dev_attr_camera.attr,
3449         &dev_attr_cardr.attr,
3450         &dev_attr_touchpad.attr,
3451         &dev_attr_egpu_enable.attr,
3452         &dev_attr_dgpu_disable.attr,
3453         &dev_attr_gpu_mux_mode.attr,
3454         &dev_attr_lid_resume.attr,
3455         &dev_attr_als_enable.attr,
3456         &dev_attr_fan_boost_mode.attr,
3457         &dev_attr_throttle_thermal_policy.attr,
3458         &dev_attr_panel_od.attr,
3459         NULL
3460 };
3461
3462 static umode_t asus_sysfs_is_visible(struct kobject *kobj,
3463                                     struct attribute *attr, int idx)
3464 {
3465         struct device *dev = kobj_to_dev(kobj);
3466         struct asus_wmi *asus = dev_get_drvdata(dev);
3467         bool ok = true;
3468         int devid = -1;
3469
3470         if (attr == &dev_attr_camera.attr)
3471                 devid = ASUS_WMI_DEVID_CAMERA;
3472         else if (attr == &dev_attr_cardr.attr)
3473                 devid = ASUS_WMI_DEVID_CARDREADER;
3474         else if (attr == &dev_attr_touchpad.attr)
3475                 devid = ASUS_WMI_DEVID_TOUCHPAD;
3476         else if (attr == &dev_attr_lid_resume.attr)
3477                 devid = ASUS_WMI_DEVID_LID_RESUME;
3478         else if (attr == &dev_attr_als_enable.attr)
3479                 devid = ASUS_WMI_DEVID_ALS_ENABLE;
3480         else if (attr == &dev_attr_egpu_enable.attr)
3481                 ok = asus->egpu_enable_available;
3482         else if (attr == &dev_attr_dgpu_disable.attr)
3483                 ok = asus->dgpu_disable_available;
3484         else if (attr == &dev_attr_gpu_mux_mode.attr)
3485                 ok = asus->gpu_mux_mode_available;
3486         else if (attr == &dev_attr_fan_boost_mode.attr)
3487                 ok = asus->fan_boost_mode_available;
3488         else if (attr == &dev_attr_throttle_thermal_policy.attr)
3489                 ok = asus->throttle_thermal_policy_available;
3490         else if (attr == &dev_attr_panel_od.attr)
3491                 ok = asus->panel_overdrive_available;
3492
3493         if (devid != -1)
3494                 ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
3495
3496         return ok ? attr->mode : 0;
3497 }
3498
3499 static const struct attribute_group platform_attribute_group = {
3500         .is_visible = asus_sysfs_is_visible,
3501         .attrs = platform_attributes
3502 };
3503
3504 static void asus_wmi_sysfs_exit(struct platform_device *device)
3505 {
3506         sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
3507 }
3508
3509 static int asus_wmi_sysfs_init(struct platform_device *device)
3510 {
3511         return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
3512 }
3513
3514 /* Platform device ************************************************************/
3515
3516 static int asus_wmi_platform_init(struct asus_wmi *asus)
3517 {
3518         struct device *dev = &asus->platform_device->dev;
3519         char *wmi_uid;
3520         int rv;
3521
3522         /* INIT enable hotkeys on some models */
3523         if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv))
3524                 pr_info("Initialization: %#x\n", rv);
3525
3526         /* We don't know yet what to do with this version... */
3527         if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) {
3528                 pr_info("BIOS WMI version: %d.%d\n", rv >> 16, rv & 0xFF);
3529                 asus->spec = rv;
3530         }
3531
3532         /*
3533          * The SFUN method probably allows the original driver to get the list
3534          * of features supported by a given model. For now, 0x0100 or 0x0800
3535          * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
3536          * The significance of others is yet to be found.
3537          */
3538         if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) {
3539                 pr_info("SFUN value: %#x\n", rv);
3540                 asus->sfun = rv;
3541         }
3542
3543         /*
3544          * Eee PC and Notebooks seems to have different method_id for DSTS,
3545          * but it may also be related to the BIOS's SPEC.
3546          * Note, on most Eeepc, there is no way to check if a method exist
3547          * or note, while on notebooks, they returns 0xFFFFFFFE on failure,
3548          * but once again, SPEC may probably be used for that kind of things.
3549          *
3550          * Additionally at least TUF Gaming series laptops return nothing for
3551          * unknown methods, so the detection in this way is not possible.
3552          *
3553          * There is strong indication that only ACPI WMI devices that have _UID
3554          * equal to "ASUSWMI" use DCTS whereas those with "ATK" use DSTS.
3555          */
3556         wmi_uid = wmi_get_acpi_device_uid(ASUS_WMI_MGMT_GUID);
3557         if (!wmi_uid)
3558                 return -ENODEV;
3559
3560         if (!strcmp(wmi_uid, ASUS_ACPI_UID_ASUSWMI)) {
3561                 dev_info(dev, "Detected ASUSWMI, use DCTS\n");
3562                 asus->dsts_id = ASUS_WMI_METHODID_DCTS;
3563         } else {
3564                 dev_info(dev, "Detected %s, not ASUSWMI, use DSTS\n", wmi_uid);
3565                 asus->dsts_id = ASUS_WMI_METHODID_DSTS;
3566         }
3567
3568         /*
3569          * Some devices can have multiple event codes stored in a queue before
3570          * the module load if it was unloaded intermittently after calling
3571          * the INIT method (enables event handling). The WMI notify handler is
3572          * expected to retrieve all event codes until a retrieved code equals
3573          * queue end marker (One or Ones). Old codes are flushed from the queue
3574          * upon module load. Not enabling this when it should be has minimal
3575          * visible impact so fall back if anything goes wrong.
3576          */
3577         wmi_uid = wmi_get_acpi_device_uid(asus->driver->event_guid);
3578         if (wmi_uid && !strcmp(wmi_uid, ASUS_ACPI_UID_ATK)) {
3579                 dev_info(dev, "Detected ATK, enable event queue\n");
3580
3581                 if (!asus_wmi_notify_queue_flush(asus))
3582                         asus->wmi_event_queue = true;
3583         }
3584
3585         /* CWAP allow to define the behavior of the Fn+F2 key,
3586          * this method doesn't seems to be present on Eee PCs */
3587         if (asus->driver->quirks->wapf >= 0)
3588                 asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP,
3589                                       asus->driver->quirks->wapf, NULL);
3590
3591         return 0;
3592 }
3593
3594 /* debugfs ********************************************************************/
3595
3596 struct asus_wmi_debugfs_node {
3597         struct asus_wmi *asus;
3598         char *name;
3599         int (*show) (struct seq_file *m, void *data);
3600 };
3601
3602 static int show_dsts(struct seq_file *m, void *data)
3603 {
3604         struct asus_wmi *asus = m->private;
3605         int err;
3606         u32 retval = -1;
3607
3608         err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
3609         if (err < 0)
3610                 return err;
3611
3612         seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval);
3613
3614         return 0;
3615 }
3616
3617 static int show_devs(struct seq_file *m, void *data)
3618 {
3619         struct asus_wmi *asus = m->private;
3620         int err;
3621         u32 retval = -1;
3622
3623         err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
3624                                     &retval);
3625         if (err < 0)
3626                 return err;
3627
3628         seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id,
3629                    asus->debug.ctrl_param, retval);
3630
3631         return 0;
3632 }
3633
3634 static int show_call(struct seq_file *m, void *data)
3635 {
3636         struct asus_wmi *asus = m->private;
3637         struct bios_args args = {
3638                 .arg0 = asus->debug.dev_id,
3639                 .arg1 = asus->debug.ctrl_param,
3640         };
3641         struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
3642         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
3643         union acpi_object *obj;
3644         acpi_status status;
3645
3646         status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
3647                                      0, asus->debug.method_id,
3648                                      &input, &output);
3649
3650         if (ACPI_FAILURE(status))
3651                 return -EIO;
3652
3653         obj = (union acpi_object *)output.pointer;
3654         if (obj && obj->type == ACPI_TYPE_INTEGER)
3655                 seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id,
3656                            asus->debug.dev_id, asus->debug.ctrl_param,
3657                            (u32) obj->integer.value);
3658         else
3659                 seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id,
3660                            asus->debug.dev_id, asus->debug.ctrl_param,
3661                            obj ? obj->type : -1);
3662
3663         kfree(obj);
3664
3665         return 0;
3666 }
3667
3668 static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = {
3669         {NULL, "devs", show_devs},
3670         {NULL, "dsts", show_dsts},
3671         {NULL, "call", show_call},
3672 };
3673
3674 static int asus_wmi_debugfs_open(struct inode *inode, struct file *file)
3675 {
3676         struct asus_wmi_debugfs_node *node = inode->i_private;
3677
3678         return single_open(file, node->show, node->asus);
3679 }
3680
3681 static const struct file_operations asus_wmi_debugfs_io_ops = {
3682         .owner = THIS_MODULE,
3683         .open = asus_wmi_debugfs_open,
3684         .read = seq_read,
3685         .llseek = seq_lseek,
3686         .release = single_release,
3687 };
3688
3689 static void asus_wmi_debugfs_exit(struct asus_wmi *asus)
3690 {
3691         debugfs_remove_recursive(asus->debug.root);
3692 }
3693
3694 static void asus_wmi_debugfs_init(struct asus_wmi *asus)
3695 {
3696         int i;
3697
3698         asus->debug.root = debugfs_create_dir(asus->driver->name, NULL);
3699
3700         debugfs_create_x32("method_id", S_IRUGO | S_IWUSR, asus->debug.root,
3701                            &asus->debug.method_id);
3702
3703         debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR, asus->debug.root,
3704                            &asus->debug.dev_id);
3705
3706         debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR, asus->debug.root,
3707                            &asus->debug.ctrl_param);
3708
3709         for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) {
3710                 struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i];
3711
3712                 node->asus = asus;
3713                 debugfs_create_file(node->name, S_IFREG | S_IRUGO,
3714                                     asus->debug.root, node,
3715                                     &asus_wmi_debugfs_io_ops);
3716         }
3717 }
3718
3719 /* Init / exit ****************************************************************/
3720
3721 static int asus_wmi_add(struct platform_device *pdev)
3722 {
3723         struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
3724         struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
3725         struct asus_wmi *asus;
3726         acpi_status status;
3727         int err;
3728         u32 result;
3729
3730         asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL);
3731         if (!asus)
3732                 return -ENOMEM;
3733
3734         asus->driver = wdrv;
3735         asus->platform_device = pdev;
3736         wdrv->platform_device = pdev;
3737         platform_set_drvdata(asus->platform_device, asus);
3738
3739         if (wdrv->detect_quirks)
3740                 wdrv->detect_quirks(asus->driver);
3741
3742         err = asus_wmi_platform_init(asus);
3743         if (err)
3744                 goto fail_platform;
3745
3746         asus->egpu_enable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU);
3747         asus->dgpu_disable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_DGPU);
3748         asus->gpu_mux_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX);
3749         asus->kbd_rgb_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE);
3750         asus->kbd_rgb_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_STATE);
3751         asus->panel_overdrive_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PANEL_OD);
3752
3753         err = fan_boost_mode_check_present(asus);
3754         if (err)
3755                 goto fail_fan_boost_mode;
3756
3757         err = throttle_thermal_policy_check_present(asus);
3758         if (err)
3759                 goto fail_throttle_thermal_policy;
3760         else
3761                 throttle_thermal_policy_set_default(asus);
3762
3763         err = platform_profile_setup(asus);
3764         if (err)
3765                 goto fail_platform_profile_setup;
3766
3767         err = asus_wmi_sysfs_init(asus->platform_device);
3768         if (err)
3769                 goto fail_sysfs;
3770
3771         err = asus_wmi_input_init(asus);
3772         if (err)
3773                 goto fail_input;
3774
3775         err = asus_wmi_fan_init(asus); /* probably no problems on error */
3776
3777         err = asus_wmi_hwmon_init(asus);
3778         if (err)
3779                 goto fail_hwmon;
3780
3781         err = asus_wmi_custom_fan_curve_init(asus);
3782         if (err)
3783                 goto fail_custom_fan_curve;
3784
3785         err = asus_wmi_led_init(asus);
3786         if (err)
3787                 goto fail_leds;
3788
3789         asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result);
3790         if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT))
3791                 asus->driver->wlan_ctrl_by_user = 1;
3792
3793         if (!(asus->driver->wlan_ctrl_by_user && ashs_present())) {
3794                 err = asus_wmi_rfkill_init(asus);
3795                 if (err)
3796                         goto fail_rfkill;
3797         }
3798
3799         if (asus->driver->quirks->wmi_force_als_set)
3800                 asus_wmi_set_als();
3801
3802         if (asus->driver->quirks->xusb2pr)
3803                 asus_wmi_set_xusb2pr(asus);
3804
3805         if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
3806                 err = asus_wmi_backlight_init(asus);
3807                 if (err && err != -ENODEV)
3808                         goto fail_backlight;
3809         } else if (asus->driver->quirks->wmi_backlight_set_devstate)
3810                 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL);
3811
3812         if (asus_wmi_has_fnlock_key(asus)) {
3813                 asus->fnlock_locked = fnlock_default;
3814                 asus_wmi_fnlock_update(asus);
3815         }
3816
3817         status = wmi_install_notify_handler(asus->driver->event_guid,
3818                                             asus_wmi_notify, asus);
3819         if (ACPI_FAILURE(status)) {
3820                 pr_err("Unable to register notify handler - %d\n", status);
3821                 err = -ENODEV;
3822                 goto fail_wmi_handler;
3823         }
3824
3825         asus_wmi_battery_init(asus);
3826
3827         asus_wmi_debugfs_init(asus);
3828
3829         return 0;
3830
3831 fail_wmi_handler:
3832         asus_wmi_backlight_exit(asus);
3833 fail_backlight:
3834         asus_wmi_rfkill_exit(asus);
3835 fail_rfkill:
3836         asus_wmi_led_exit(asus);
3837 fail_leds:
3838 fail_hwmon:
3839         asus_wmi_input_exit(asus);
3840 fail_input:
3841         asus_wmi_sysfs_exit(asus->platform_device);
3842 fail_sysfs:
3843 fail_throttle_thermal_policy:
3844 fail_custom_fan_curve:
3845 fail_platform_profile_setup:
3846         if (asus->platform_profile_support)
3847                 platform_profile_remove();
3848 fail_fan_boost_mode:
3849 fail_platform:
3850         kfree(asus);
3851         return err;
3852 }
3853
3854 static int asus_wmi_remove(struct platform_device *device)
3855 {
3856         struct asus_wmi *asus;
3857
3858         asus = platform_get_drvdata(device);
3859         wmi_remove_notify_handler(asus->driver->event_guid);
3860         asus_wmi_backlight_exit(asus);
3861         asus_wmi_input_exit(asus);
3862         asus_wmi_led_exit(asus);
3863         asus_wmi_rfkill_exit(asus);
3864         asus_wmi_debugfs_exit(asus);
3865         asus_wmi_sysfs_exit(asus->platform_device);
3866         asus_fan_set_auto(asus);
3867         throttle_thermal_policy_set_default(asus);
3868         asus_wmi_battery_exit(asus);
3869
3870         if (asus->platform_profile_support)
3871                 platform_profile_remove();
3872
3873         kfree(asus);
3874         return 0;
3875 }
3876
3877 /* Platform driver - hibernate/resume callbacks *******************************/
3878
3879 static int asus_hotk_thaw(struct device *device)
3880 {
3881         struct asus_wmi *asus = dev_get_drvdata(device);
3882
3883         if (asus->wlan.rfkill) {
3884                 bool wlan;
3885
3886                 /*
3887                  * Work around bios bug - acpi _PTS turns off the wireless led
3888                  * during suspend.  Normally it restores it on resume, but
3889                  * we should kick it ourselves in case hibernation is aborted.
3890                  */
3891                 wlan = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
3892                 asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL);
3893         }
3894
3895         return 0;
3896 }
3897
3898 static int asus_hotk_resume(struct device *device)
3899 {
3900         struct asus_wmi *asus = dev_get_drvdata(device);
3901
3902         if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
3903                 kbd_led_update(asus);
3904
3905         if (asus_wmi_has_fnlock_key(asus))
3906                 asus_wmi_fnlock_update(asus);
3907
3908         asus_wmi_tablet_mode_get_state(asus);
3909         return 0;
3910 }
3911
3912 static int asus_hotk_restore(struct device *device)
3913 {
3914         struct asus_wmi *asus = dev_get_drvdata(device);
3915         int bl;
3916
3917         /* Refresh both wlan rfkill state and pci hotplug */
3918         if (asus->wlan.rfkill)
3919                 asus_rfkill_hotplug(asus);
3920
3921         if (asus->bluetooth.rfkill) {
3922                 bl = !asus_wmi_get_devstate_simple(asus,
3923                                                    ASUS_WMI_DEVID_BLUETOOTH);
3924                 rfkill_set_sw_state(asus->bluetooth.rfkill, bl);
3925         }
3926         if (asus->wimax.rfkill) {
3927                 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WIMAX);
3928                 rfkill_set_sw_state(asus->wimax.rfkill, bl);
3929         }
3930         if (asus->wwan3g.rfkill) {
3931                 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WWAN3G);
3932                 rfkill_set_sw_state(asus->wwan3g.rfkill, bl);
3933         }
3934         if (asus->gps.rfkill) {
3935                 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPS);
3936                 rfkill_set_sw_state(asus->gps.rfkill, bl);
3937         }
3938         if (asus->uwb.rfkill) {
3939                 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_UWB);
3940                 rfkill_set_sw_state(asus->uwb.rfkill, bl);
3941         }
3942         if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
3943                 kbd_led_update(asus);
3944
3945         if (asus_wmi_has_fnlock_key(asus))
3946                 asus_wmi_fnlock_update(asus);
3947
3948         asus_wmi_tablet_mode_get_state(asus);
3949         return 0;
3950 }
3951
3952 static const struct dev_pm_ops asus_pm_ops = {
3953         .thaw = asus_hotk_thaw,
3954         .restore = asus_hotk_restore,
3955         .resume = asus_hotk_resume,
3956 };
3957
3958 /* Registration ***************************************************************/
3959
3960 static int asus_wmi_probe(struct platform_device *pdev)
3961 {
3962         struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
3963         struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
3964         int ret;
3965
3966         if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
3967                 pr_warn("ASUS Management GUID not found\n");
3968                 return -ENODEV;
3969         }
3970
3971         if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) {
3972                 pr_warn("ASUS Event GUID not found\n");
3973                 return -ENODEV;
3974         }
3975
3976         if (wdrv->probe) {
3977                 ret = wdrv->probe(pdev);
3978                 if (ret)
3979                         return ret;
3980         }
3981
3982         return asus_wmi_add(pdev);
3983 }
3984
3985 static bool used;
3986
3987 int __init_or_module asus_wmi_register_driver(struct asus_wmi_driver *driver)
3988 {
3989         struct platform_driver *platform_driver;
3990         struct platform_device *platform_device;
3991
3992         if (used)
3993                 return -EBUSY;
3994
3995         platform_driver = &driver->platform_driver;
3996         platform_driver->remove = asus_wmi_remove;
3997         platform_driver->driver.owner = driver->owner;
3998         platform_driver->driver.name = driver->name;
3999         platform_driver->driver.pm = &asus_pm_ops;
4000
4001         platform_device = platform_create_bundle(platform_driver,
4002                                                  asus_wmi_probe,
4003                                                  NULL, 0, NULL, 0);
4004         if (IS_ERR(platform_device))
4005                 return PTR_ERR(platform_device);
4006
4007         used = true;
4008         return 0;
4009 }
4010 EXPORT_SYMBOL_GPL(asus_wmi_register_driver);
4011
4012 void asus_wmi_unregister_driver(struct asus_wmi_driver *driver)
4013 {
4014         platform_device_unregister(driver->platform_device);
4015         platform_driver_unregister(&driver->platform_driver);
4016         used = false;
4017 }
4018 EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver);
4019
4020 static int __init asus_wmi_init(void)
4021 {
4022         pr_info("ASUS WMI generic driver loaded\n");
4023         return 0;
4024 }
4025
4026 static void __exit asus_wmi_exit(void)
4027 {
4028         pr_info("ASUS WMI generic driver unloaded\n");
4029 }
4030
4031 module_init(asus_wmi_init);
4032 module_exit(asus_wmi_exit);