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 <corentin.chary@gmail.com>
   7  *
   8  * Portions based on wistron_btns.c:
   9  * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
  10  * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
  11  * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
  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 <corentin.chary@gmail.com>");
  47 MODULE_AUTHOR("Yong Wang <yong.y.wang@intel.com>");
  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         bool tablet_switch_inverted;
 229
 230         enum fan_type fan_type;
 231         enum fan_type gpu_fan_type;
 232         int fan_pwm_mode;
 233         int gpu_fan_pwm_mode;
 234         int agfn_pwm;
 235
 236         bool fan_boost_mode_available;
 237         u8 fan_boost_mode_mask;
 238         u8 fan_boost_mode;
 239
 240         bool egpu_enable_available;
 241         bool dgpu_disable_available;
 242         bool gpu_mux_mode_available;
 243
 244         bool kbd_rgb_mode_available;
 245         bool kbd_rgb_state_available;
 246
 247         bool throttle_thermal_policy_available;
 248         u8 throttle_thermal_policy_mode;
 249
 250         bool cpu_fan_curve_available;
 251         bool gpu_fan_curve_available;
 252         struct fan_curve_data custom_fan_curves[2];
 253
 254         struct platform_profile_handler platform_profile_handler;
 255         bool platform_profile_support;
 256
 257         // The RSOC controls the maximum charging percentage.
 258         bool battery_rsoc_available;
 259
 260         bool panel_overdrive_available;
 261
 262         struct hotplug_slot hotplug_slot;
 263         struct mutex hotplug_lock;
 264         struct mutex wmi_lock;
 265         struct workqueue_struct *hotplug_workqueue;
 266         struct work_struct hotplug_work;
 267
 268         bool fnlock_locked;
 269
 270         struct asus_wmi_debug debug;
 271
 272         struct asus_wmi_driver *driver;
 273 };
 274
 275 /* WMI ************************************************************************/
 276
 277 static int asus_wmi_evaluate_method3(u32 method_id,
 278                 u32 arg0, u32 arg1, u32 arg2, u32 *retval)
 279 {
 280         struct bios_args args = {
 281                 .arg0 = arg0,
 282                 .arg1 = arg1,
 283                 .arg2 = arg2,
 284         };
 285         struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
 286         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
 287         acpi_status status;
 288         union acpi_object *obj;
 289         u32 tmp = 0;
 290
 291         status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
 292                                      &input, &output);
 293
 294         if (ACPI_FAILURE(status))
 295                 return -EIO;
 296
 297         obj = (union acpi_object *)output.pointer;
 298         if (obj && obj->type == ACPI_TYPE_INTEGER)
 299                 tmp = (u32) obj->integer.value;
 300
 301         if (retval)
 302                 *retval = tmp;
 303
 304         kfree(obj);
 305
 306         if (tmp == ASUS_WMI_UNSUPPORTED_METHOD)
 307                 return -ENODEV;
 308
 309         return 0;
 310 }
 311
 312 int asus_wmi_evaluate_method(u32 method_id, u32 arg0, u32 arg1, u32 *retval)
 313 {
 314         return asus_wmi_evaluate_method3(method_id, arg0, arg1, 0, retval);
 315 }
 316 EXPORT_SYMBOL_GPL(asus_wmi_evaluate_method);
 317
 318 static int asus_wmi_evaluate_method5(u32 method_id,
 319                 u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4, u32 *retval)
 320 {
 321         struct bios_args args = {
 322                 .arg0 = arg0,
 323                 .arg1 = arg1,
 324                 .arg2 = arg2,
 325                 .arg3 = arg3,
 326                 .arg4 = arg4,
 327         };
 328         struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
 329         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
 330         acpi_status status;
 331         union acpi_object *obj;
 332         u32 tmp = 0;
 333
 334         status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
 335                                      &input, &output);
 336
 337         if (ACPI_FAILURE(status))
 338                 return -EIO;
 339
 340         obj = (union acpi_object *)output.pointer;
 341         if (obj && obj->type == ACPI_TYPE_INTEGER)
 342                 tmp = (u32) obj->integer.value;
 343
 344         if (retval)
 345                 *retval = tmp;
 346
 347         kfree(obj);
 348
 349         if (tmp == ASUS_WMI_UNSUPPORTED_METHOD)
 350                 return -ENODEV;
 351
 352         return 0;
 353 }
 354
 355 /*
 356  * Returns as an error if the method output is not a buffer. Typically this
 357  * means that the method called is unsupported.
 358  */
 359 static int asus_wmi_evaluate_method_buf(u32 method_id,
 360                 u32 arg0, u32 arg1, u8 *ret_buffer, size_t size)
 361 {
 362         struct bios_args args = {
 363                 .arg0 = arg0,
 364                 .arg1 = arg1,
 365                 .arg2 = 0,
 366         };
 367         struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
 368         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
 369         acpi_status status;
 370         union acpi_object *obj;
 371         int err = 0;
 372
 373         status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
 374                                      &input, &output);
 375
 376         if (ACPI_FAILURE(status))
 377                 return -EIO;
 378
 379         obj = (union acpi_object *)output.pointer;
 380
 381         switch (obj->type) {
 382         case ACPI_TYPE_BUFFER:
 383                 if (obj->buffer.length > size) {
 384                         err = -ENOSPC;
 385                         break;
 386                 }
 387                 if (obj->buffer.length == 0) {
 388                         err = -ENODATA;
 389                         break;
 390                 }
 391
 392                 memcpy(ret_buffer, obj->buffer.pointer, obj->buffer.length);
 393                 break;
 394         case ACPI_TYPE_INTEGER:
 395                 err = (u32)obj->integer.value;
 396
 397                 if (err == ASUS_WMI_UNSUPPORTED_METHOD)
 398                         err = -ENODEV;
 399                 /*
 400                  * At least one method returns a 0 with no buffer if no arg
 401                  * is provided, such as ASUS_WMI_DEVID_CPU_FAN_CURVE
 402                  */
 403                 if (err == 0)
 404                         err = -ENODATA;
 405                 break;
 406         default:
 407                 err = -ENODATA;
 408                 break;
 409         }
 410
 411         kfree(obj);
 412
 413         if (err)
 414                 return err;
 415
 416         return 0;
 417 }
 418
 419 static int asus_wmi_evaluate_method_agfn(const struct acpi_buffer args)
 420 {
 421         struct acpi_buffer input;
 422         u64 phys_addr;
 423         u32 retval;
 424         u32 status;
 425
 426         /*
 427          * Copy to dma capable address otherwise memory corruption occurs as
 428          * bios has to be able to access it.
 429          */
 430         input.pointer = kmemdup(args.pointer, args.length, GFP_DMA | GFP_KERNEL);
 431         input.length = args.length;
 432         if (!input.pointer)
 433                 return -ENOMEM;
 434         phys_addr = virt_to_phys(input.pointer);
 435
 436         status = asus_wmi_evaluate_method(ASUS_WMI_METHODID_AGFN,
 437                                         phys_addr, 0, &retval);
 438         if (!status)
 439                 memcpy(args.pointer, input.pointer, args.length);
 440
 441         kfree(input.pointer);
 442         if (status)
 443                 return -ENXIO;
 444
 445         return retval;
 446 }
 447
 448 static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval)
 449 {
 450         return asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval);
 451 }
 452
 453 static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
 454                                  u32 *retval)
 455 {
 456         return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS, dev_id,
 457                                         ctrl_param, retval);
 458 }
 459
 460 /* Helper for special devices with magic return codes */
 461 static int asus_wmi_get_devstate_bits(struct asus_wmi *asus,
 462                                       u32 dev_id, u32 mask)
 463 {
 464         u32 retval = 0;
 465         int err;
 466
 467         err = asus_wmi_get_devstate(asus, dev_id, &retval);
 468         if (err < 0)
 469                 return err;
 470
 471         if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT))
 472                 return -ENODEV;
 473
 474         if (mask == ASUS_WMI_DSTS_STATUS_BIT) {
 475                 if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT)
 476                         return -ENODEV;
 477         }
 478
 479         return retval & mask;
 480 }
 481
 482 static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id)
 483 {
 484         return asus_wmi_get_devstate_bits(asus, dev_id,
 485                                           ASUS_WMI_DSTS_STATUS_BIT);
 486 }
 487
 488 static bool asus_wmi_dev_is_present(struct asus_wmi *asus, u32 dev_id)
 489 {
 490         u32 retval;
 491         int status = asus_wmi_get_devstate(asus, dev_id, &retval);
 492
 493         return status == 0 && (retval & ASUS_WMI_DSTS_PRESENCE_BIT);
 494 }
 495
 496 /* Input **********************************************************************/
 497 static void asus_wmi_tablet_sw_report(struct asus_wmi *asus, bool value)
 498 {
 499         input_report_switch(asus->inputdev, SW_TABLET_MODE,
 500                             asus->tablet_switch_inverted ? !value : value);
 501         input_sync(asus->inputdev);
 502 }
 503
 504 static void asus_wmi_tablet_sw_init(struct asus_wmi *asus, u32 dev_id, int event_code)
 505 {
 506         struct device *dev = &asus->platform_device->dev;
 507         int result;
 508
 509         result = asus_wmi_get_devstate_simple(asus, dev_id);
 510         if (result >= 0) {
 511                 input_set_capability(asus->inputdev, EV_SW, SW_TABLET_MODE);
 512                 asus_wmi_tablet_sw_report(asus, result);
 513                 asus->tablet_switch_dev_id = dev_id;
 514                 asus->tablet_switch_event_code = event_code;
 515         } else if (result == -ENODEV) {
 516                 dev_err(dev, "This device has tablet-mode-switch quirk but got ENODEV checking it. This is a bug.");
 517         } else {
 518                 dev_err(dev, "Error checking for tablet-mode-switch: %d\n", result);
 519         }
 520 }
 521
 522 static int asus_wmi_input_init(struct asus_wmi *asus)
 523 {
 524         struct device *dev = &asus->platform_device->dev;
 525         int err;
 526
 527         asus->inputdev = input_allocate_device();
 528         if (!asus->inputdev)
 529                 return -ENOMEM;
 530
 531         asus->inputdev->name = asus->driver->input_name;
 532         asus->inputdev->phys = asus->driver->input_phys;
 533         asus->inputdev->id.bustype = BUS_HOST;
 534         asus->inputdev->dev.parent = dev;
 535         set_bit(EV_REP, asus->inputdev->evbit);
 536
 537         err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL);
 538         if (err)
 539                 goto err_free_dev;
 540
 541         switch (asus->driver->quirks->tablet_switch_mode) {
 542         case asus_wmi_no_tablet_switch:
 543                 break;
 544         case asus_wmi_kbd_dock_devid:
 545                 asus->tablet_switch_inverted = true;
 546                 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_KBD_DOCK, NOTIFY_KBD_DOCK_CHANGE);
 547                 break;
 548         case asus_wmi_lid_flip_devid:
 549                 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_LID_FLIP, NOTIFY_LID_FLIP);
 550                 break;
 551         case asus_wmi_lid_flip_rog_devid:
 552                 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_LID_FLIP_ROG, NOTIFY_LID_FLIP_ROG);
 553                 break;
 554         }
 555
 556         err = input_register_device(asus->inputdev);
 557         if (err)
 558                 goto err_free_dev;
 559
 560         return 0;
 561
 562 err_free_dev:
 563         input_free_device(asus->inputdev);
 564         return err;
 565 }
 566
 567 static void asus_wmi_input_exit(struct asus_wmi *asus)
 568 {
 569         if (asus->inputdev)
 570                 input_unregister_device(asus->inputdev);
 571
 572         asus->inputdev = NULL;
 573 }
 574
 575 /* Tablet mode ****************************************************************/
 576
 577 static void asus_wmi_tablet_mode_get_state(struct asus_wmi *asus)
 578 {
 579         int result;
 580
 581         if (!asus->tablet_switch_dev_id)
 582                 return;
 583
 584         result = asus_wmi_get_devstate_simple(asus, asus->tablet_switch_dev_id);
 585         if (result >= 0)
 586                 asus_wmi_tablet_sw_report(asus, result);
 587 }
 588
 589 /* dGPU ********************************************************************/
 590 static ssize_t dgpu_disable_show(struct device *dev,
 591                                    struct device_attribute *attr, char *buf)
 592 {
 593         struct asus_wmi *asus = dev_get_drvdata(dev);
 594         int result;
 595
 596         result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_DGPU);
 597         if (result < 0)
 598                 return result;
 599
 600         return sysfs_emit(buf, "%d\n", result);
 601 }
 602
 603 /*
 604  * A user may be required to store the value twice, typcial store first, then
 605  * rescan PCI bus to activate power, then store a second time to save correctly.
 606  * The reason for this is that an extra code path in the ACPI is enabled when
 607  * the device and bus are powered.
 608  */
 609 static ssize_t dgpu_disable_store(struct device *dev,
 610                                     struct device_attribute *attr,
 611                                     const char *buf, size_t count)
 612 {
 613         int result, err;
 614         u32 disable;
 615
 616         struct asus_wmi *asus = dev_get_drvdata(dev);
 617
 618         result = kstrtou32(buf, 10, &disable);
 619         if (result)
 620                 return result;
 621
 622         if (disable > 1)
 623                 return -EINVAL;
 624
 625         err = asus_wmi_set_devstate(ASUS_WMI_DEVID_DGPU, disable, &result);
 626         if (err) {
 627                 pr_warn("Failed to set dgpu disable: %d\n", err);
 628                 return err;
 629         }
 630
 631         if (result > 1) {
 632                 pr_warn("Failed to set dgpu disable (result): 0x%x\n", result);
 633                 return -EIO;
 634         }
 635
 636         sysfs_notify(&asus->platform_device->dev.kobj, NULL, "dgpu_disable");
 637
 638         return count;
 639 }
 640 static DEVICE_ATTR_RW(dgpu_disable);
 641
 642 /* eGPU ********************************************************************/
 643 static ssize_t egpu_enable_show(struct device *dev,
 644                                    struct device_attribute *attr, char *buf)
 645 {
 646         struct asus_wmi *asus = dev_get_drvdata(dev);
 647         int result;
 648
 649         result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU);
 650         if (result < 0)
 651                 return result;
 652
 653         return sysfs_emit(buf, "%d\n", result);
 654 }
 655
 656 /* The ACPI call to enable the eGPU also disables the internal dGPU */
 657 static ssize_t egpu_enable_store(struct device *dev,
 658                                     struct device_attribute *attr,
 659                                     const char *buf, size_t count)
 660 {
 661         int result, err;
 662         u32 enable;
 663
 664         struct asus_wmi *asus = dev_get_drvdata(dev);
 665
 666         err = kstrtou32(buf, 10, &enable);
 667         if (err)
 668                 return err;
 669
 670         if (enable > 1)
 671                 return -EINVAL;
 672
 673         err = asus_wmi_set_devstate(ASUS_WMI_DEVID_EGPU, enable, &result);
 674         if (err) {
 675                 pr_warn("Failed to set egpu disable: %d\n", err);
 676                 return err;
 677         }
 678
 679         if (result > 1) {
 680                 pr_warn("Failed to set egpu disable (retval): 0x%x\n", result);
 681                 return -EIO;
 682         }
 683
 684         sysfs_notify(&asus->platform_device->dev.kobj, NULL, "egpu_enable");
 685
 686         return count;
 687 }
 688 static DEVICE_ATTR_RW(egpu_enable);
 689
 690 /* gpu mux switch *************************************************************/
 691 static ssize_t gpu_mux_mode_show(struct device *dev,
 692                                  struct device_attribute *attr, char *buf)
 693 {
 694         struct asus_wmi *asus = dev_get_drvdata(dev);
 695         int result;
 696
 697         result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPU_MUX);
 698         if (result < 0)
 699                 return result;
 700
 701         return sysfs_emit(buf, "%d\n", result);
 702 }
 703
 704 static ssize_t gpu_mux_mode_store(struct device *dev,
 705                                   struct device_attribute *attr,
 706                                   const char *buf, size_t count)
 707 {
 708         struct asus_wmi *asus = dev_get_drvdata(dev);
 709         int result, err;
 710         u32 optimus;
 711
 712         err = kstrtou32(buf, 10, &optimus);
 713         if (err)
 714                 return err;
 715
 716         if (optimus > 1)
 717                 return -EINVAL;
 718
 719         err = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_MUX, optimus, &result);
 720         if (err) {
 721                 dev_err(dev, "Failed to set GPU MUX mode: %d\n", err);
 722                 return err;
 723         }
 724         /* !1 is considered a fail by ASUS */
 725         if (result != 1) {
 726                 dev_warn(dev, "Failed to set GPU MUX mode (result): 0x%x\n", result);
 727                 return -EIO;
 728         }
 729
 730         sysfs_notify(&asus->platform_device->dev.kobj, NULL, "gpu_mux_mode");
 731
 732         return count;
 733 }
 734 static DEVICE_ATTR_RW(gpu_mux_mode);
 735
 736 /* TUF Laptop Keyboard RGB Modes **********************************************/
 737 static ssize_t kbd_rgb_mode_store(struct device *dev,
 738                                  struct device_attribute *attr,
 739                                  const char *buf, size_t count)
 740 {
 741         u32 cmd, mode, r, g,  b,  speed;
 742         int err;
 743
 744         if (sscanf(buf, "%d %d %d %d %d %d", &cmd, &mode, &r, &g, &b, &speed) != 6)
 745                 return -EINVAL;
 746
 747         cmd = !!cmd;
 748
 749         /* These are the known usable modes across all TUF/ROG */
 750         if (mode >= 12 || mode == 9)
 751                 mode = 10;
 752
 753         switch (speed) {
 754         case 0:
 755                 speed = 0xe1;
 756                 break;
 757         case 1:
 758                 speed = 0xeb;
 759                 break;
 760         case 2:
 761                 speed = 0xf5;
 762                 break;
 763         default:
 764                 speed = 0xeb;
 765         }
 766
 767         err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS, ASUS_WMI_DEVID_TUF_RGB_MODE,
 768                         cmd | (mode << 8) | (r << 16) | (g << 24), b | (speed << 8), NULL);
 769         if (err)
 770                 return err;
 771
 772         return count;
 773 }
 774 static DEVICE_ATTR_WO(kbd_rgb_mode);
 775
 776 static ssize_t kbd_rgb_mode_index_show(struct device *device,
 777                                                  struct device_attribute *attr,
 778                                                  char *buf)
 779 {
 780         return sysfs_emit(buf, "%s\n", "cmd mode red green blue speed");
 781 }
 782 static DEVICE_ATTR_RO(kbd_rgb_mode_index);
 783
 784 static struct attribute *kbd_rgb_mode_attrs[] = {
 785         &dev_attr_kbd_rgb_mode.attr,
 786         &dev_attr_kbd_rgb_mode_index.attr,
 787         NULL,
 788 };
 789
 790 static const struct attribute_group kbd_rgb_mode_group = {
 791         .attrs = kbd_rgb_mode_attrs,
 792 };
 793
 794 /* TUF Laptop Keyboard RGB State **********************************************/
 795 static ssize_t kbd_rgb_state_store(struct device *dev,
 796                                  struct device_attribute *attr,
 797                                  const char *buf, size_t count)
 798 {
 799         u32 flags, cmd, boot, awake, sleep, keyboard;
 800         int err;
 801
 802         if (sscanf(buf, "%d %d %d %d %d", &cmd, &boot, &awake, &sleep, &keyboard) != 5)
 803                 return -EINVAL;
 804
 805         if (cmd)
 806                 cmd = BIT(2);
 807
 808         flags = 0;
 809         if (boot)
 810                 flags |= BIT(1);
 811         if (awake)
 812                 flags |= BIT(3);
 813         if (sleep)
 814                 flags |= BIT(5);
 815         if (keyboard)
 816                 flags |= BIT(7);
 817
 818         /* 0xbd is the required default arg0 for the method. Nothing happens otherwise */
 819         err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS,
 820                         ASUS_WMI_DEVID_TUF_RGB_STATE, 0xbd | cmd << 8 | (flags << 16), 0, NULL);
 821         if (err)
 822                 return err;
 823
 824         return count;
 825 }
 826 static DEVICE_ATTR_WO(kbd_rgb_state);
 827
 828 static ssize_t kbd_rgb_state_index_show(struct device *device,
 829                                                  struct device_attribute *attr,
 830                                                  char *buf)
 831 {
 832         return sysfs_emit(buf, "%s\n", "cmd boot awake sleep keyboard");
 833 }
 834 static DEVICE_ATTR_RO(kbd_rgb_state_index);
 835
 836 static struct attribute *kbd_rgb_state_attrs[] = {
 837         &dev_attr_kbd_rgb_state.attr,
 838         &dev_attr_kbd_rgb_state_index.attr,
 839         NULL,
 840 };
 841
 842 static const struct attribute_group kbd_rgb_state_group = {
 843         .attrs = kbd_rgb_state_attrs,
 844 };
 845
 846 static const struct attribute_group *kbd_rgb_mode_groups[] = {
 847         NULL,
 848         NULL,
 849         NULL,
 850 };
 851
 852 /* Battery ********************************************************************/
 853
 854 /* The battery maximum charging percentage */
 855 static int charge_end_threshold;
 856
 857 static ssize_t charge_control_end_threshold_store(struct device *dev,
 858                                                   struct device_attribute *attr,
 859                                                   const char *buf, size_t count)
 860 {
 861         int value, ret, rv;
 862
 863         ret = kstrtouint(buf, 10, &value);
 864         if (ret)
 865                 return ret;
 866
 867         if (value < 0 || value > 100)
 868                 return -EINVAL;
 869
 870         ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_RSOC, value, &rv);
 871         if (ret)
 872                 return ret;
 873
 874         if (rv != 1)
 875                 return -EIO;
 876
 877         /* There isn't any method in the DSDT to read the threshold, so we
 878          * save the threshold.
 879          */
 880         charge_end_threshold = value;
 881         return count;
 882 }
 883
 884 static ssize_t charge_control_end_threshold_show(struct device *device,
 885                                                  struct device_attribute *attr,
 886                                                  char *buf)
 887 {
 888         return sysfs_emit(buf, "%d\n", charge_end_threshold);
 889 }
 890
 891 static DEVICE_ATTR_RW(charge_control_end_threshold);
 892
 893 static int asus_wmi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
 894 {
 895         /* The WMI method does not provide a way to specific a battery, so we
 896          * just assume it is the first battery.
 897          * Note: On some newer ASUS laptops (Zenbook UM431DA), the primary/first
 898          * battery is named BATT.
 899          */
 900         if (strcmp(battery->desc->name, "BAT0") != 0 &&
 901             strcmp(battery->desc->name, "BAT1") != 0 &&
 902             strcmp(battery->desc->name, "BATC") != 0 &&
 903             strcmp(battery->desc->name, "BATT") != 0)
 904                 return -ENODEV;
 905
 906         if (device_create_file(&battery->dev,
 907             &dev_attr_charge_control_end_threshold))
 908                 return -ENODEV;
 909
 910         /* The charge threshold is only reset when the system is power cycled,
 911          * and we can't get the current threshold so let set it to 100% when
 912          * a battery is added.
 913          */
 914         asus_wmi_set_devstate(ASUS_WMI_DEVID_RSOC, 100, NULL);
 915         charge_end_threshold = 100;
 916
 917         return 0;
 918 }
 919
 920 static int asus_wmi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
 921 {
 922         device_remove_file(&battery->dev,
 923                            &dev_attr_charge_control_end_threshold);
 924         return 0;
 925 }
 926
 927 static struct acpi_battery_hook battery_hook = {
 928         .add_battery = asus_wmi_battery_add,
 929         .remove_battery = asus_wmi_battery_remove,
 930         .name = "ASUS Battery Extension",
 931 };
 932
 933 static void asus_wmi_battery_init(struct asus_wmi *asus)
 934 {
 935         asus->battery_rsoc_available = false;
 936         if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_RSOC)) {
 937                 asus->battery_rsoc_available = true;
 938                 battery_hook_register(&battery_hook);
 939         }
 940 }
 941
 942 static void asus_wmi_battery_exit(struct asus_wmi *asus)
 943 {
 944         if (asus->battery_rsoc_available)
 945                 battery_hook_unregister(&battery_hook);
 946 }
 947
 948 /* LEDs ***********************************************************************/
 949
 950 /*
 951  * These functions actually update the LED's, and are called from a
 952  * workqueue. By doing this as separate work rather than when the LED
 953  * subsystem asks, we avoid messing with the Asus ACPI stuff during a
 954  * potentially bad time, such as a timer interrupt.
 955  */
 956 static void tpd_led_update(struct work_struct *work)
 957 {
 958         int ctrl_param;
 959         struct asus_wmi *asus;
 960
 961         asus = container_of(work, struct asus_wmi, tpd_led_work);
 962
 963         ctrl_param = asus->tpd_led_wk;
 964         asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
 965 }
 966
 967 static void tpd_led_set(struct led_classdev *led_cdev,
 968                         enum led_brightness value)
 969 {
 970         struct asus_wmi *asus;
 971
 972         asus = container_of(led_cdev, struct asus_wmi, tpd_led);
 973
 974         asus->tpd_led_wk = !!value;
 975         queue_work(asus->led_workqueue, &asus->tpd_led_work);
 976 }
 977
 978 static int read_tpd_led_state(struct asus_wmi *asus)
 979 {
 980         return asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_TOUCHPAD_LED);
 981 }
 982
 983 static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
 984 {
 985         struct asus_wmi *asus;
 986
 987         asus = container_of(led_cdev, struct asus_wmi, tpd_led);
 988
 989         return read_tpd_led_state(asus);
 990 }
 991
 992 static void kbd_led_update(struct asus_wmi *asus)
 993 {
 994         int ctrl_param = 0;
 995
 996         ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F);
 997         asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL);
 998 }
 999
1000 static int kbd_led_read(struct asus_wmi *asus, int *level, int *env)
1001 {
1002         int retval;
1003
1004         /*
1005          * bits 0-2: level
1006          * bit 7: light on/off
1007          * bit 8-10: environment (0: dark, 1: normal, 2: light)
1008          * bit 17: status unknown
1009          */
1010         retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT,
1011                                             0xFFFF);
1012
1013         /* Unknown status is considered as off */
1014         if (retval == 0x8000)
1015                 retval = 0;
1016
1017         if (retval < 0)
1018                 return retval;
1019
1020         if (level)
1021                 *level = retval & 0x7F;
1022         if (env)
1023                 *env = (retval >> 8) & 0x7F;
1024         return 0;
1025 }
1026
1027 static void do_kbd_led_set(struct led_classdev *led_cdev, int value)
1028 {
1029         struct asus_wmi *asus;
1030         int max_level;
1031
1032         asus = container_of(led_cdev, struct asus_wmi, kbd_led);
1033         max_level = asus->kbd_led.max_brightness;
1034
1035         asus->kbd_led_wk = clamp_val(value, 0, max_level);
1036         kbd_led_update(asus);
1037 }
1038
1039 static void kbd_led_set(struct led_classdev *led_cdev,
1040                         enum led_brightness value)
1041 {
1042         /* Prevent disabling keyboard backlight on module unregister */
1043         if (led_cdev->flags & LED_UNREGISTERING)
1044                 return;
1045
1046         do_kbd_led_set(led_cdev, value);
1047 }
1048
1049 static void kbd_led_set_by_kbd(struct asus_wmi *asus, enum led_brightness value)
1050 {
1051         struct led_classdev *led_cdev = &asus->kbd_led;
1052
1053         do_kbd_led_set(led_cdev, value);
1054         led_classdev_notify_brightness_hw_changed(led_cdev, asus->kbd_led_wk);
1055 }
1056
1057 static enum led_brightness kbd_led_get(struct led_classdev *led_cdev)
1058 {
1059         struct asus_wmi *asus;
1060         int retval, value;
1061
1062         asus = container_of(led_cdev, struct asus_wmi, kbd_led);
1063
1064         retval = kbd_led_read(asus, &value, NULL);
1065         if (retval < 0)
1066                 return retval;
1067
1068         return value;
1069 }
1070
1071 static int wlan_led_unknown_state(struct asus_wmi *asus)
1072 {
1073         u32 result;
1074
1075         asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
1076
1077         return result & ASUS_WMI_DSTS_UNKNOWN_BIT;
1078 }
1079
1080 static void wlan_led_update(struct work_struct *work)
1081 {
1082         int ctrl_param;
1083         struct asus_wmi *asus;
1084
1085         asus = container_of(work, struct asus_wmi, wlan_led_work);
1086
1087         ctrl_param = asus->wlan_led_wk;
1088         asus_wmi_set_devstate(ASUS_WMI_DEVID_WIRELESS_LED, ctrl_param, NULL);
1089 }
1090
1091 static void wlan_led_set(struct led_classdev *led_cdev,
1092                          enum led_brightness value)
1093 {
1094         struct asus_wmi *asus;
1095
1096         asus = container_of(led_cdev, struct asus_wmi, wlan_led);
1097
1098         asus->wlan_led_wk = !!value;
1099         queue_work(asus->led_workqueue, &asus->wlan_led_work);
1100 }
1101
1102 static enum led_brightness wlan_led_get(struct led_classdev *led_cdev)
1103 {
1104         struct asus_wmi *asus;
1105         u32 result;
1106
1107         asus = container_of(led_cdev, struct asus_wmi, wlan_led);
1108         asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
1109
1110         return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
1111 }
1112
1113 static void lightbar_led_update(struct work_struct *work)
1114 {
1115         struct asus_wmi *asus;
1116         int ctrl_param;
1117
1118         asus = container_of(work, struct asus_wmi, lightbar_led_work);
1119
1120         ctrl_param = asus->lightbar_led_wk;
1121         asus_wmi_set_devstate(ASUS_WMI_DEVID_LIGHTBAR, ctrl_param, NULL);
1122 }
1123
1124 static void lightbar_led_set(struct led_classdev *led_cdev,
1125                              enum led_brightness value)
1126 {
1127         struct asus_wmi *asus;
1128
1129         asus = container_of(led_cdev, struct asus_wmi, lightbar_led);
1130
1131         asus->lightbar_led_wk = !!value;
1132         queue_work(asus->led_workqueue, &asus->lightbar_led_work);
1133 }
1134
1135 static enum led_brightness lightbar_led_get(struct led_classdev *led_cdev)
1136 {
1137         struct asus_wmi *asus;
1138         u32 result;
1139
1140         asus = container_of(led_cdev, struct asus_wmi, lightbar_led);
1141         asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_LIGHTBAR, &result);
1142
1143         return result & ASUS_WMI_DSTS_LIGHTBAR_MASK;
1144 }
1145
1146 static int micmute_led_set(struct led_classdev *led_cdev,
1147                            enum led_brightness brightness)
1148 {
1149         int state = brightness != LED_OFF;
1150         int err;
1151
1152         err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MICMUTE_LED, state, NULL);
1153         return err < 0 ? err : 0;
1154 }
1155
1156 static void asus_wmi_led_exit(struct asus_wmi *asus)
1157 {
1158         led_classdev_unregister(&asus->kbd_led);
1159         led_classdev_unregister(&asus->tpd_led);
1160         led_classdev_unregister(&asus->wlan_led);
1161         led_classdev_unregister(&asus->lightbar_led);
1162         led_classdev_unregister(&asus->micmute_led);
1163
1164         if (asus->led_workqueue)
1165                 destroy_workqueue(asus->led_workqueue);
1166 }
1167
1168 static int asus_wmi_led_init(struct asus_wmi *asus)
1169 {
1170         int rv = 0, num_rgb_groups = 0, led_val;
1171
1172         if (asus->kbd_rgb_mode_available)
1173                 kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_mode_group;
1174         if (asus->kbd_rgb_state_available)
1175                 kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_state_group;
1176
1177         asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
1178         if (!asus->led_workqueue)
1179                 return -ENOMEM;
1180
1181         if (read_tpd_led_state(asus) >= 0) {
1182                 INIT_WORK(&asus->tpd_led_work, tpd_led_update);
1183
1184                 asus->tpd_led.name = "asus::touchpad";
1185                 asus->tpd_led.brightness_set = tpd_led_set;
1186                 asus->tpd_led.brightness_get = tpd_led_get;
1187                 asus->tpd_led.max_brightness = 1;
1188
1189                 rv = led_classdev_register(&asus->platform_device->dev,
1190                                            &asus->tpd_led);
1191                 if (rv)
1192                         goto error;
1193         }
1194
1195         if (!kbd_led_read(asus, &led_val, NULL)) {
1196                 asus->kbd_led_wk = led_val;
1197                 asus->kbd_led.name = "asus::kbd_backlight";
1198                 asus->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
1199                 asus->kbd_led.brightness_set = kbd_led_set;
1200                 asus->kbd_led.brightness_get = kbd_led_get;
1201                 asus->kbd_led.max_brightness = 3;
1202
1203                 if (num_rgb_groups != 0)
1204                         asus->kbd_led.groups = kbd_rgb_mode_groups;
1205
1206                 rv = led_classdev_register(&asus->platform_device->dev,
1207                                            &asus->kbd_led);
1208                 if (rv)
1209                         goto error;
1210         }
1211
1212         if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_WIRELESS_LED)
1213                         && (asus->driver->quirks->wapf > 0)) {
1214                 INIT_WORK(&asus->wlan_led_work, wlan_led_update);
1215
1216                 asus->wlan_led.name = "asus::wlan";
1217                 asus->wlan_led.brightness_set = wlan_led_set;
1218                 if (!wlan_led_unknown_state(asus))
1219                         asus->wlan_led.brightness_get = wlan_led_get;
1220                 asus->wlan_led.flags = LED_CORE_SUSPENDRESUME;
1221                 asus->wlan_led.max_brightness = 1;
1222                 asus->wlan_led.default_trigger = "asus-wlan";
1223
1224                 rv = led_classdev_register(&asus->platform_device->dev,
1225                                            &asus->wlan_led);
1226                 if (rv)
1227                         goto error;
1228         }
1229
1230         if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_LIGHTBAR)) {
1231                 INIT_WORK(&asus->lightbar_led_work, lightbar_led_update);
1232
1233                 asus->lightbar_led.name = "asus::lightbar";
1234                 asus->lightbar_led.brightness_set = lightbar_led_set;
1235                 asus->lightbar_led.brightness_get = lightbar_led_get;
1236                 asus->lightbar_led.max_brightness = 1;
1237
1238                 rv = led_classdev_register(&asus->platform_device->dev,
1239                                            &asus->lightbar_led);
1240         }
1241
1242         if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MICMUTE_LED)) {
1243                 asus->micmute_led.name = "platform::micmute";
1244                 asus->micmute_led.max_brightness = 1;
1245                 asus->micmute_led.brightness = ledtrig_audio_get(LED_AUDIO_MICMUTE);
1246                 asus->micmute_led.brightness_set_blocking = micmute_led_set;
1247                 asus->micmute_led.default_trigger = "audio-micmute";
1248
1249                 rv = led_classdev_register(&asus->platform_device->dev,
1250                                                 &asus->micmute_led);
1251                 if (rv)
1252                         goto error;
1253         }
1254
1255 error:
1256         if (rv)
1257                 asus_wmi_led_exit(asus);
1258
1259         return rv;
1260 }
1261
1262 /* RF *************************************************************************/
1263
1264 /*
1265  * PCI hotplug (for wlan rfkill)
1266  */
1267 static bool asus_wlan_rfkill_blocked(struct asus_wmi *asus)
1268 {
1269         int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
1270
1271         if (result < 0)
1272                 return false;
1273         return !result;
1274 }
1275
1276 static void asus_rfkill_hotplug(struct asus_wmi *asus)
1277 {
1278         struct pci_dev *dev;
1279         struct pci_bus *bus;
1280         bool blocked;
1281         bool absent;
1282         u32 l;
1283
1284         mutex_lock(&asus->wmi_lock);
1285         blocked = asus_wlan_rfkill_blocked(asus);
1286         mutex_unlock(&asus->wmi_lock);
1287
1288         mutex_lock(&asus->hotplug_lock);
1289         pci_lock_rescan_remove();
1290
1291         if (asus->wlan.rfkill)
1292                 rfkill_set_sw_state(asus->wlan.rfkill, blocked);
1293
1294         if (asus->hotplug_slot.ops) {
1295                 bus = pci_find_bus(0, 1);
1296                 if (!bus) {
1297                         pr_warn("Unable to find PCI bus 1?\n");
1298                         goto out_unlock;
1299                 }
1300
1301                 if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
1302                         pr_err("Unable to read PCI config space?\n");
1303                         goto out_unlock;
1304                 }
1305                 absent = (l == 0xffffffff);
1306
1307                 if (blocked != absent) {
1308                         pr_warn("BIOS says wireless lan is %s, but the pci device is %s\n",
1309                                 blocked ? "blocked" : "unblocked",
1310                                 absent ? "absent" : "present");
1311                         pr_warn("skipped wireless hotplug as probably inappropriate for this model\n");
1312                         goto out_unlock;
1313                 }
1314
1315                 if (!blocked) {
1316                         dev = pci_get_slot(bus, 0);
1317                         if (dev) {
1318                                 /* Device already present */
1319                                 pci_dev_put(dev);
1320                                 goto out_unlock;
1321                         }
1322                         dev = pci_scan_single_device(bus, 0);
1323                         if (dev) {
1324                                 pci_bus_assign_resources(bus);
1325                                 pci_bus_add_device(dev);
1326                         }
1327                 } else {
1328                         dev = pci_get_slot(bus, 0);
1329                         if (dev) {
1330                                 pci_stop_and_remove_bus_device(dev);
1331                                 pci_dev_put(dev);
1332                         }
1333                 }
1334         }
1335
1336 out_unlock:
1337         pci_unlock_rescan_remove();
1338         mutex_unlock(&asus->hotplug_lock);
1339 }
1340
1341 static void asus_rfkill_notify(acpi_handle handle, u32 event, void *data)
1342 {
1343         struct asus_wmi *asus = data;
1344
1345         if (event != ACPI_NOTIFY_BUS_CHECK)
1346                 return;
1347
1348         /*
1349          * We can't call directly asus_rfkill_hotplug because most
1350          * of the time WMBC is still being executed and not reetrant.
1351          * There is currently no way to tell ACPICA that  we want this
1352          * method to be serialized, we schedule a asus_rfkill_hotplug
1353          * call later, in a safer context.
1354          */
1355         queue_work(asus->hotplug_workqueue, &asus->hotplug_work);
1356 }
1357
1358 static int asus_register_rfkill_notifier(struct asus_wmi *asus, char *node)
1359 {
1360         acpi_status status;
1361         acpi_handle handle;
1362
1363         status = acpi_get_handle(NULL, node, &handle);
1364         if (ACPI_FAILURE(status))
1365                 return -ENODEV;
1366
1367         status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
1368                                              asus_rfkill_notify, asus);
1369         if (ACPI_FAILURE(status))
1370                 pr_warn("Failed to register notify on %s\n", node);
1371
1372         return 0;
1373 }
1374
1375 static void asus_unregister_rfkill_notifier(struct asus_wmi *asus, char *node)
1376 {
1377         acpi_status status = AE_OK;
1378         acpi_handle handle;
1379
1380         status = acpi_get_handle(NULL, node, &handle);
1381         if (ACPI_FAILURE(status))
1382                 return;
1383
1384         status = acpi_remove_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
1385                                             asus_rfkill_notify);
1386         if (ACPI_FAILURE(status))
1387                 pr_err("Error removing rfkill notify handler %s\n", node);
1388 }
1389
1390 static int asus_get_adapter_status(struct hotplug_slot *hotplug_slot,
1391                                    u8 *value)
1392 {
1393         struct asus_wmi *asus = container_of(hotplug_slot,
1394                                              struct asus_wmi, hotplug_slot);
1395         int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
1396
1397         if (result < 0)
1398                 return result;
1399
1400         *value = !!result;
1401         return 0;
1402 }
1403
1404 static const struct hotplug_slot_ops asus_hotplug_slot_ops = {
1405         .get_adapter_status = asus_get_adapter_status,
1406         .get_power_status = asus_get_adapter_status,
1407 };
1408
1409 static void asus_hotplug_work(struct work_struct *work)
1410 {
1411         struct asus_wmi *asus;
1412
1413         asus = container_of(work, struct asus_wmi, hotplug_work);
1414         asus_rfkill_hotplug(asus);
1415 }
1416
1417 static int asus_setup_pci_hotplug(struct asus_wmi *asus)
1418 {
1419         int ret = -ENOMEM;
1420         struct pci_bus *bus = pci_find_bus(0, 1);
1421
1422         if (!bus) {
1423                 pr_err("Unable to find wifi PCI bus\n");
1424                 return -ENODEV;
1425         }
1426
1427         asus->hotplug_workqueue =
1428             create_singlethread_workqueue("hotplug_workqueue");
1429         if (!asus->hotplug_workqueue)
1430                 goto error_workqueue;
1431
1432         INIT_WORK(&asus->hotplug_work, asus_hotplug_work);
1433
1434         asus->hotplug_slot.ops = &asus_hotplug_slot_ops;
1435
1436         ret = pci_hp_register(&asus->hotplug_slot, bus, 0, "asus-wifi");
1437         if (ret) {
1438                 pr_err("Unable to register hotplug slot - %d\n", ret);
1439                 goto error_register;
1440         }
1441
1442         return 0;
1443
1444 error_register:
1445         asus->hotplug_slot.ops = NULL;
1446         destroy_workqueue(asus->hotplug_workqueue);
1447 error_workqueue:
1448         return ret;
1449 }
1450
1451 /*
1452  * Rfkill devices
1453  */
1454 static int asus_rfkill_set(void *data, bool blocked)
1455 {
1456         struct asus_rfkill *priv = data;
1457         u32 ctrl_param = !blocked;
1458         u32 dev_id = priv->dev_id;
1459
1460         /*
1461          * If the user bit is set, BIOS can't set and record the wlan status,
1462          * it will report the value read from id ASUS_WMI_DEVID_WLAN_LED
1463          * while we query the wlan status through WMI(ASUS_WMI_DEVID_WLAN).
1464          * So, we have to record wlan status in id ASUS_WMI_DEVID_WLAN_LED
1465          * while setting the wlan status through WMI.
1466          * This is also the behavior that windows app will do.
1467          */
1468         if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
1469              priv->asus->driver->wlan_ctrl_by_user)
1470                 dev_id = ASUS_WMI_DEVID_WLAN_LED;
1471
1472         return asus_wmi_set_devstate(dev_id, ctrl_param, NULL);
1473 }
1474
1475 static void asus_rfkill_query(struct rfkill *rfkill, void *data)
1476 {
1477         struct asus_rfkill *priv = data;
1478         int result;
1479
1480         result = asus_wmi_get_devstate_simple(priv->asus, priv->dev_id);
1481
1482         if (result < 0)
1483                 return;
1484
1485         rfkill_set_sw_state(priv->rfkill, !result);
1486 }
1487
1488 static int asus_rfkill_wlan_set(void *data, bool blocked)
1489 {
1490         struct asus_rfkill *priv = data;
1491         struct asus_wmi *asus = priv->asus;
1492         int ret;
1493
1494         /*
1495          * This handler is enabled only if hotplug is enabled.
1496          * In this case, the asus_wmi_set_devstate() will
1497          * trigger a wmi notification and we need to wait
1498          * this call to finish before being able to call
1499          * any wmi method
1500          */
1501         mutex_lock(&asus->wmi_lock);
1502         ret = asus_rfkill_set(data, blocked);
1503         mutex_unlock(&asus->wmi_lock);
1504         return ret;
1505 }
1506
1507 static const struct rfkill_ops asus_rfkill_wlan_ops = {
1508         .set_block = asus_rfkill_wlan_set,
1509         .query = asus_rfkill_query,
1510 };
1511
1512 static const struct rfkill_ops asus_rfkill_ops = {
1513         .set_block = asus_rfkill_set,
1514         .query = asus_rfkill_query,
1515 };
1516
1517 static int asus_new_rfkill(struct asus_wmi *asus,
1518                            struct asus_rfkill *arfkill,
1519                            const char *name, enum rfkill_type type, int dev_id)
1520 {
1521         int result = asus_wmi_get_devstate_simple(asus, dev_id);
1522         struct rfkill **rfkill = &arfkill->rfkill;
1523
1524         if (result < 0)
1525                 return result;
1526
1527         arfkill->dev_id = dev_id;
1528         arfkill->asus = asus;
1529
1530         if (dev_id == ASUS_WMI_DEVID_WLAN &&
1531             asus->driver->quirks->hotplug_wireless)
1532                 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
1533                                        &asus_rfkill_wlan_ops, arfkill);
1534         else
1535                 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
1536                                        &asus_rfkill_ops, arfkill);
1537
1538         if (!*rfkill)
1539                 return -EINVAL;
1540
1541         if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
1542                         (asus->driver->quirks->wapf > 0))
1543                 rfkill_set_led_trigger_name(*rfkill, "asus-wlan");
1544
1545         rfkill_init_sw_state(*rfkill, !result);
1546         result = rfkill_register(*rfkill);
1547         if (result) {
1548                 rfkill_destroy(*rfkill);
1549                 *rfkill = NULL;
1550                 return result;
1551         }
1552         return 0;
1553 }
1554
1555 static void asus_wmi_rfkill_exit(struct asus_wmi *asus)
1556 {
1557         if (asus->driver->wlan_ctrl_by_user && ashs_present())
1558                 return;
1559
1560         asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
1561         asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
1562         asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
1563         if (asus->wlan.rfkill) {
1564                 rfkill_unregister(asus->wlan.rfkill);
1565                 rfkill_destroy(asus->wlan.rfkill);
1566                 asus->wlan.rfkill = NULL;
1567         }
1568         /*
1569          * Refresh pci hotplug in case the rfkill state was changed after
1570          * asus_unregister_rfkill_notifier()
1571          */
1572         asus_rfkill_hotplug(asus);
1573         if (asus->hotplug_slot.ops)
1574                 pci_hp_deregister(&asus->hotplug_slot);
1575         if (asus->hotplug_workqueue)
1576                 destroy_workqueue(asus->hotplug_workqueue);
1577
1578         if (asus->bluetooth.rfkill) {
1579                 rfkill_unregister(asus->bluetooth.rfkill);
1580                 rfkill_destroy(asus->bluetooth.rfkill);
1581                 asus->bluetooth.rfkill = NULL;
1582         }
1583         if (asus->wimax.rfkill) {
1584                 rfkill_unregister(asus->wimax.rfkill);
1585                 rfkill_destroy(asus->wimax.rfkill);
1586                 asus->wimax.rfkill = NULL;
1587         }
1588         if (asus->wwan3g.rfkill) {
1589                 rfkill_unregister(asus->wwan3g.rfkill);
1590                 rfkill_destroy(asus->wwan3g.rfkill);
1591                 asus->wwan3g.rfkill = NULL;
1592         }
1593         if (asus->gps.rfkill) {
1594                 rfkill_unregister(asus->gps.rfkill);
1595                 rfkill_destroy(asus->gps.rfkill);
1596                 asus->gps.rfkill = NULL;
1597         }
1598         if (asus->uwb.rfkill) {
1599                 rfkill_unregister(asus->uwb.rfkill);
1600                 rfkill_destroy(asus->uwb.rfkill);
1601                 asus->uwb.rfkill = NULL;
1602         }
1603 }
1604
1605 static int asus_wmi_rfkill_init(struct asus_wmi *asus)
1606 {
1607         int result = 0;
1608
1609         mutex_init(&asus->hotplug_lock);
1610         mutex_init(&asus->wmi_lock);
1611
1612         result = asus_new_rfkill(asus, &asus->wlan, "asus-wlan",
1613                                  RFKILL_TYPE_WLAN, ASUS_WMI_DEVID_WLAN);
1614
1615         if (result && result != -ENODEV)
1616                 goto exit;
1617
1618         result = asus_new_rfkill(asus, &asus->bluetooth,
1619                                  "asus-bluetooth", RFKILL_TYPE_BLUETOOTH,
1620                                  ASUS_WMI_DEVID_BLUETOOTH);
1621
1622         if (result && result != -ENODEV)
1623                 goto exit;
1624
1625         result = asus_new_rfkill(asus, &asus->wimax, "asus-wimax",
1626                                  RFKILL_TYPE_WIMAX, ASUS_WMI_DEVID_WIMAX);
1627
1628         if (result && result != -ENODEV)
1629                 goto exit;
1630
1631         result = asus_new_rfkill(asus, &asus->wwan3g, "asus-wwan3g",
1632                                  RFKILL_TYPE_WWAN, ASUS_WMI_DEVID_WWAN3G);
1633
1634         if (result && result != -ENODEV)
1635                 goto exit;
1636
1637         result = asus_new_rfkill(asus, &asus->gps, "asus-gps",
1638                                  RFKILL_TYPE_GPS, ASUS_WMI_DEVID_GPS);
1639
1640         if (result && result != -ENODEV)
1641                 goto exit;
1642
1643         result = asus_new_rfkill(asus, &asus->uwb, "asus-uwb",
1644                                  RFKILL_TYPE_UWB, ASUS_WMI_DEVID_UWB);
1645
1646         if (result && result != -ENODEV)
1647                 goto exit;
1648
1649         if (!asus->driver->quirks->hotplug_wireless)
1650                 goto exit;
1651
1652         result = asus_setup_pci_hotplug(asus);
1653         /*
1654          * If we get -EBUSY then something else is handling the PCI hotplug -
1655          * don't fail in this case
1656          */
1657         if (result == -EBUSY)
1658                 result = 0;
1659
1660         asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
1661         asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
1662         asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
1663         /*
1664          * Refresh pci hotplug in case the rfkill state was changed during
1665          * setup.
1666          */
1667         asus_rfkill_hotplug(asus);
1668
1669 exit:
1670         if (result && result != -ENODEV)
1671                 asus_wmi_rfkill_exit(asus);
1672
1673         if (result == -ENODEV)
1674                 result = 0;
1675
1676         return result;
1677 }
1678
1679 /* Panel Overdrive ************************************************************/
1680 static ssize_t panel_od_show(struct device *dev,
1681                                    struct device_attribute *attr, char *buf)
1682 {
1683         struct asus_wmi *asus = dev_get_drvdata(dev);
1684         int result;
1685
1686         result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_PANEL_OD);
1687         if (result < 0)
1688                 return result;
1689
1690         return sysfs_emit(buf, "%d\n", result);
1691 }
1692
1693 static ssize_t panel_od_store(struct device *dev,
1694                                     struct device_attribute *attr,
1695                                     const char *buf, size_t count)
1696 {
1697         int result, err;
1698         u32 overdrive;
1699
1700         struct asus_wmi *asus = dev_get_drvdata(dev);
1701
1702         result = kstrtou32(buf, 10, &overdrive);
1703         if (result)
1704                 return result;
1705
1706         if (overdrive > 1)
1707                 return -EINVAL;
1708
1709         err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PANEL_OD, overdrive, &result);
1710
1711         if (err) {
1712                 pr_warn("Failed to set panel overdrive: %d\n", err);
1713                 return err;
1714         }
1715
1716         if (result > 1) {
1717                 pr_warn("Failed to set panel overdrive (result): 0x%x\n", result);
1718                 return -EIO;
1719         }
1720
1721         sysfs_notify(&asus->platform_device->dev.kobj, NULL, "panel_od");
1722
1723         return count;
1724 }
1725 static DEVICE_ATTR_RW(panel_od);
1726
1727 /* Quirks *********************************************************************/
1728
1729 static void asus_wmi_set_xusb2pr(struct asus_wmi *asus)
1730 {
1731         struct pci_dev *xhci_pdev;
1732         u32 orig_ports_available;
1733         u32 ports_available = asus->driver->quirks->xusb2pr;
1734
1735         xhci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
1736                         PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI,
1737                         NULL);
1738
1739         if (!xhci_pdev)
1740                 return;
1741
1742         pci_read_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
1743                                 &orig_ports_available);
1744
1745         pci_write_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
1746                                 cpu_to_le32(ports_available));
1747
1748         pci_dev_put(xhci_pdev);
1749
1750         pr_info("set USB_INTEL_XUSB2PR old: 0x%04x, new: 0x%04x\n",
1751                         orig_ports_available, ports_available);
1752 }
1753
1754 /*
1755  * Some devices dont support or have borcken get_als method
1756  * but still support set method.
1757  */
1758 static void asus_wmi_set_als(void)
1759 {
1760         asus_wmi_set_devstate(ASUS_WMI_DEVID_ALS_ENABLE, 1, NULL);
1761 }
1762
1763 /* Hwmon device ***************************************************************/
1764
1765 static int asus_agfn_fan_speed_read(struct asus_wmi *asus, int fan,
1766                                           int *speed)
1767 {
1768         struct agfn_fan_args args = {
1769                 .agfn.len = sizeof(args),
1770                 .agfn.mfun = ASUS_FAN_MFUN,
1771                 .agfn.sfun = ASUS_FAN_SFUN_READ,
1772                 .fan = fan,
1773                 .speed = 0,
1774         };
1775         struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
1776         int status;
1777
1778         if (fan != 1)
1779                 return -EINVAL;
1780
1781         status = asus_wmi_evaluate_method_agfn(input);
1782
1783         if (status || args.agfn.err)
1784                 return -ENXIO;
1785
1786         if (speed)
1787                 *speed = args.speed;
1788
1789         return 0;
1790 }
1791
1792 static int asus_agfn_fan_speed_write(struct asus_wmi *asus, int fan,
1793                                      int *speed)
1794 {
1795         struct agfn_fan_args args = {
1796                 .agfn.len = sizeof(args),
1797                 .agfn.mfun = ASUS_FAN_MFUN,
1798                 .agfn.sfun = ASUS_FAN_SFUN_WRITE,
1799                 .fan = fan,
1800                 .speed = speed ?  *speed : 0,
1801         };
1802         struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
1803         int status;
1804
1805         /* 1: for setting 1st fan's speed 0: setting auto mode */
1806         if (fan != 1 && fan != 0)
1807                 return -EINVAL;
1808
1809         status = asus_wmi_evaluate_method_agfn(input);
1810
1811         if (status || args.agfn.err)
1812                 return -ENXIO;
1813
1814         if (speed && fan == 1)
1815                 asus->agfn_pwm = *speed;
1816
1817         return 0;
1818 }
1819
1820 /*
1821  * Check if we can read the speed of one fan. If true we assume we can also
1822  * control it.
1823  */
1824 static bool asus_wmi_has_agfn_fan(struct asus_wmi *asus)
1825 {
1826         int status;
1827         int speed;
1828         u32 value;
1829
1830         status = asus_agfn_fan_speed_read(asus, 1, &speed);
1831         if (status != 0)
1832                 return false;
1833
1834         status = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
1835         if (status != 0)
1836                 return false;
1837
1838         /*
1839          * We need to find a better way, probably using sfun,
1840          * bits or spec ...
1841          * Currently we disable it if:
1842          * - ASUS_WMI_UNSUPPORTED_METHOD is returned
1843          * - reverved bits are non-zero
1844          * - sfun and presence bit are not set
1845          */
1846         return !(value == ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000
1847                  || (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT)));
1848 }
1849
1850 static int asus_fan_set_auto(struct asus_wmi *asus)
1851 {
1852         int status;
1853         u32 retval;
1854
1855         switch (asus->fan_type) {
1856         case FAN_TYPE_SPEC83:
1857                 status = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL,
1858                                                0, &retval);
1859                 if (status)
1860                         return status;
1861
1862                 if (retval != 1)
1863                         return -EIO;
1864                 break;
1865
1866         case FAN_TYPE_AGFN:
1867                 status = asus_agfn_fan_speed_write(asus, 0, NULL);
1868                 if (status)
1869                         return -ENXIO;
1870                 break;
1871
1872         default:
1873                 return -ENXIO;
1874         }
1875
1876         /*
1877          * Modern models like the G713 also have GPU fan control (this is not AGFN)
1878          */
1879         if (asus->gpu_fan_type == FAN_TYPE_SPEC83) {
1880                 status = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
1881                                                0, &retval);
1882                 if (status)
1883                         return status;
1884
1885                 if (retval != 1)
1886                         return -EIO;
1887         }
1888
1889         return 0;
1890 }
1891
1892 static ssize_t pwm1_show(struct device *dev,
1893                                struct device_attribute *attr,
1894                                char *buf)
1895 {
1896         struct asus_wmi *asus = dev_get_drvdata(dev);
1897         int err;
1898         int value;
1899
1900         /* If we already set a value then just return it */
1901         if (asus->agfn_pwm >= 0)
1902                 return sprintf(buf, "%d\n", asus->agfn_pwm);
1903
1904         /*
1905          * If we haven't set already set a value through the AGFN interface,
1906          * we read a current value through the (now-deprecated) FAN_CTRL device.
1907          */
1908         err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
1909         if (err < 0)
1910                 return err;
1911
1912         value &= 0xFF;
1913
1914         if (value == 1) /* Low Speed */
1915                 value = 85;
1916         else if (value == 2)
1917                 value = 170;
1918         else if (value == 3)
1919                 value = 255;
1920         else if (value) {
1921                 pr_err("Unknown fan speed %#x\n", value);
1922                 value = -1;
1923         }
1924
1925         return sysfs_emit(buf, "%d\n", value);
1926 }
1927
1928 static ssize_t pwm1_store(struct device *dev,
1929                                      struct device_attribute *attr,
1930                                      const char *buf, size_t count) {
1931         struct asus_wmi *asus = dev_get_drvdata(dev);
1932         int value;
1933         int state;
1934         int ret;
1935
1936         ret = kstrtouint(buf, 10, &value);
1937         if (ret)
1938                 return ret;
1939
1940         value = clamp(value, 0, 255);
1941
1942         state = asus_agfn_fan_speed_write(asus, 1, &value);
1943         if (state)
1944                 pr_warn("Setting fan speed failed: %d\n", state);
1945         else
1946                 asus->fan_pwm_mode = ASUS_FAN_CTRL_MANUAL;
1947
1948         return count;
1949 }
1950
1951 static ssize_t fan1_input_show(struct device *dev,
1952                                         struct device_attribute *attr,
1953                                         char *buf)
1954 {
1955         struct asus_wmi *asus = dev_get_drvdata(dev);
1956         int value;
1957         int ret;
1958
1959         switch (asus->fan_type) {
1960         case FAN_TYPE_SPEC83:
1961                 ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL,
1962                                             &value);
1963                 if (ret < 0)
1964                         return ret;
1965
1966                 value &= 0xffff;
1967                 break;
1968
1969         case FAN_TYPE_AGFN:
1970                 /* no speed readable on manual mode */
1971                 if (asus->fan_pwm_mode == ASUS_FAN_CTRL_MANUAL)
1972                         return -ENXIO;
1973
1974                 ret = asus_agfn_fan_speed_read(asus, 1, &value);
1975                 if (ret) {
1976                         pr_warn("reading fan speed failed: %d\n", ret);
1977                         return -ENXIO;
1978                 }
1979                 break;
1980
1981         default:
1982                 return -ENXIO;
1983         }
1984
1985         return sysfs_emit(buf, "%d\n", value < 0 ? -1 : value * 100);
1986 }
1987
1988 static ssize_t pwm1_enable_show(struct device *dev,
1989                                                  struct device_attribute *attr,
1990                                                  char *buf)
1991 {
1992         struct asus_wmi *asus = dev_get_drvdata(dev);
1993
1994         /*
1995          * Just read back the cached pwm mode.
1996          *
1997          * For the CPU_FAN device, the spec indicates that we should be
1998          * able to read the device status and consult bit 19 to see if we
1999          * are in Full On or Automatic mode. However, this does not work
2000          * in practice on X532FL at least (the bit is always 0) and there's
2001          * also nothing in the DSDT to indicate that this behaviour exists.
2002          */
2003         return sysfs_emit(buf, "%d\n", asus->fan_pwm_mode);
2004 }
2005
2006 static ssize_t pwm1_enable_store(struct device *dev,
2007                                                   struct device_attribute *attr,
2008                                                   const char *buf, size_t count)
2009 {
2010         struct asus_wmi *asus = dev_get_drvdata(dev);
2011         int status = 0;
2012         int state;
2013         int value;
2014         int ret;
2015         u32 retval;
2016
2017         ret = kstrtouint(buf, 10, &state);
2018         if (ret)
2019                 return ret;
2020
2021         if (asus->fan_type == FAN_TYPE_SPEC83) {
2022                 switch (state) { /* standard documented hwmon values */
2023                 case ASUS_FAN_CTRL_FULLSPEED:
2024                         value = 1;
2025                         break;
2026                 case ASUS_FAN_CTRL_AUTO:
2027                         value = 0;
2028                         break;
2029                 default:
2030                         return -EINVAL;
2031                 }
2032
2033                 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL,
2034                                             value, &retval);
2035                 if (ret)
2036                         return ret;
2037
2038                 if (retval != 1)
2039                         return -EIO;
2040         } else if (asus->fan_type == FAN_TYPE_AGFN) {
2041                 switch (state) {
2042                 case ASUS_FAN_CTRL_MANUAL:
2043                         break;
2044
2045                 case ASUS_FAN_CTRL_AUTO:
2046                         status = asus_fan_set_auto(asus);
2047                         if (status)
2048                                 return status;
2049                         break;
2050
2051                 default:
2052                         return -EINVAL;
2053                 }
2054         }
2055
2056         asus->fan_pwm_mode = state;
2057
2058         /* Must set to disabled if mode is toggled */
2059         if (asus->cpu_fan_curve_available)
2060                 asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false;
2061         if (asus->gpu_fan_curve_available)
2062                 asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false;
2063
2064         return count;
2065 }
2066
2067 static ssize_t fan1_label_show(struct device *dev,
2068                                           struct device_attribute *attr,
2069                                           char *buf)
2070 {
2071         return sysfs_emit(buf, "%s\n", ASUS_FAN_DESC);
2072 }
2073
2074 static ssize_t asus_hwmon_temp1(struct device *dev,
2075                                 struct device_attribute *attr,
2076                                 char *buf)
2077 {
2078         struct asus_wmi *asus = dev_get_drvdata(dev);
2079         u32 value;
2080         int err;
2081
2082         err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_THERMAL_CTRL, &value);
2083         if (err < 0)
2084                 return err;
2085
2086         return sprintf(buf, "%ld\n",
2087                        deci_kelvin_to_millicelsius(value & 0xFFFF));
2088 }
2089
2090 /* GPU fan on modern ROG laptops */
2091 static ssize_t fan2_input_show(struct device *dev,
2092                                         struct device_attribute *attr,
2093                                         char *buf)
2094 {
2095         struct asus_wmi *asus = dev_get_drvdata(dev);
2096         int value;
2097         int ret;
2098
2099         ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL, &value);
2100         if (ret < 0)
2101                 return ret;
2102
2103         value &= 0xffff;
2104
2105         return sysfs_emit(buf, "%d\n", value * 100);
2106 }
2107
2108 static ssize_t fan2_label_show(struct device *dev,
2109                                           struct device_attribute *attr,
2110                                           char *buf)
2111 {
2112         return sysfs_emit(buf, "%s\n", ASUS_GPU_FAN_DESC);
2113 }
2114
2115 static ssize_t pwm2_enable_show(struct device *dev,
2116                                 struct device_attribute *attr,
2117                                 char *buf)
2118 {
2119         struct asus_wmi *asus = dev_get_drvdata(dev);
2120
2121         return sysfs_emit(buf, "%d\n", asus->gpu_fan_pwm_mode);
2122 }
2123
2124 static ssize_t pwm2_enable_store(struct device *dev,
2125                                  struct device_attribute *attr,
2126                                  const char *buf, size_t count)
2127 {
2128         struct asus_wmi *asus = dev_get_drvdata(dev);
2129         int state;
2130         int value;
2131         int ret;
2132         u32 retval;
2133
2134         ret = kstrtouint(buf, 10, &state);
2135         if (ret)
2136                 return ret;
2137
2138         switch (state) { /* standard documented hwmon values */
2139         case ASUS_FAN_CTRL_FULLSPEED:
2140                 value = 1;
2141                 break;
2142         case ASUS_FAN_CTRL_AUTO:
2143                 value = 0;
2144                 break;
2145         default:
2146                 return -EINVAL;
2147         }
2148
2149         ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
2150                                     value, &retval);
2151         if (ret)
2152                 return ret;
2153
2154         if (retval != 1)
2155                 return -EIO;
2156
2157         asus->gpu_fan_pwm_mode = state;
2158         return count;
2159 }
2160
2161 /* Fan1 */
2162 static DEVICE_ATTR_RW(pwm1);
2163 static DEVICE_ATTR_RW(pwm1_enable);
2164 static DEVICE_ATTR_RO(fan1_input);
2165 static DEVICE_ATTR_RO(fan1_label);
2166 /* Fan2 - GPU fan */
2167 static DEVICE_ATTR_RW(pwm2_enable);
2168 static DEVICE_ATTR_RO(fan2_input);
2169 static DEVICE_ATTR_RO(fan2_label);
2170
2171 /* Temperature */
2172 static DEVICE_ATTR(temp1_input, S_IRUGO, asus_hwmon_temp1, NULL);
2173
2174 static struct attribute *hwmon_attributes[] = {
2175         &dev_attr_pwm1.attr,
2176         &dev_attr_pwm1_enable.attr,
2177         &dev_attr_pwm2_enable.attr,
2178         &dev_attr_fan1_input.attr,
2179         &dev_attr_fan1_label.attr,
2180         &dev_attr_fan2_input.attr,
2181         &dev_attr_fan2_label.attr,
2182
2183         &dev_attr_temp1_input.attr,
2184         NULL
2185 };
2186
2187 static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
2188                                           struct attribute *attr, int idx)
2189 {
2190         struct device *dev = kobj_to_dev(kobj);
2191         struct asus_wmi *asus = dev_get_drvdata(dev->parent);
2192         u32 value = ASUS_WMI_UNSUPPORTED_METHOD;
2193
2194         if (attr == &dev_attr_pwm1.attr) {
2195                 if (asus->fan_type != FAN_TYPE_AGFN)
2196                         return 0;
2197         } else if (attr == &dev_attr_fan1_input.attr
2198             || attr == &dev_attr_fan1_label.attr
2199             || attr == &dev_attr_pwm1_enable.attr) {
2200                 if (asus->fan_type == FAN_TYPE_NONE)
2201                         return 0;
2202         } else if (attr == &dev_attr_fan2_input.attr
2203             || attr == &dev_attr_fan2_label.attr
2204             || attr == &dev_attr_pwm2_enable.attr) {
2205                 if (asus->gpu_fan_type == FAN_TYPE_NONE)
2206                         return 0;
2207         } else if (attr == &dev_attr_temp1_input.attr) {
2208                 int err = asus_wmi_get_devstate(asus,
2209                                                 ASUS_WMI_DEVID_THERMAL_CTRL,
2210                                                 &value);
2211
2212                 if (err < 0)
2213                         return 0; /* can't return negative here */
2214
2215                 /*
2216                  * If the temperature value in deci-Kelvin is near the absolute
2217                  * zero temperature, something is clearly wrong
2218                  */
2219                 if (value == 0 || value == 1)
2220                         return 0;
2221         }
2222
2223         return attr->mode;
2224 }
2225
2226 static const struct attribute_group hwmon_attribute_group = {
2227         .is_visible = asus_hwmon_sysfs_is_visible,
2228         .attrs = hwmon_attributes
2229 };
2230 __ATTRIBUTE_GROUPS(hwmon_attribute);
2231
2232 static int asus_wmi_hwmon_init(struct asus_wmi *asus)
2233 {
2234         struct device *dev = &asus->platform_device->dev;
2235         struct device *hwmon;
2236
2237         hwmon = devm_hwmon_device_register_with_groups(dev, "asus", asus,
2238                         hwmon_attribute_groups);
2239
2240         if (IS_ERR(hwmon)) {
2241                 pr_err("Could not register asus hwmon device\n");
2242                 return PTR_ERR(hwmon);
2243         }
2244         return 0;
2245 }
2246
2247 static int asus_wmi_fan_init(struct asus_wmi *asus)
2248 {
2249         asus->gpu_fan_type = FAN_TYPE_NONE;
2250         asus->fan_type = FAN_TYPE_NONE;
2251         asus->agfn_pwm = -1;
2252
2253         if (asus->driver->quirks->wmi_ignore_fan)
2254                 asus->fan_type = FAN_TYPE_NONE;
2255         else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL))
2256                 asus->fan_type = FAN_TYPE_SPEC83;
2257         else if (asus_wmi_has_agfn_fan(asus))
2258                 asus->fan_type = FAN_TYPE_AGFN;
2259
2260         /*  Modern models like G713 also have GPU fan control */
2261         if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL))
2262                 asus->gpu_fan_type = FAN_TYPE_SPEC83;
2263
2264         if (asus->fan_type == FAN_TYPE_NONE)
2265                 return -ENODEV;
2266
2267         asus_fan_set_auto(asus);
2268         asus->fan_pwm_mode = ASUS_FAN_CTRL_AUTO;
2269         return 0;
2270 }
2271
2272 /* Fan mode *******************************************************************/
2273
2274 static int fan_boost_mode_check_present(struct asus_wmi *asus)
2275 {
2276         u32 result;
2277         int err;
2278
2279         asus->fan_boost_mode_available = false;
2280
2281         err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_BOOST_MODE,
2282                                     &result);
2283         if (err) {
2284                 if (err == -ENODEV)
2285                         return 0;
2286                 else
2287                         return err;
2288         }
2289
2290         if ((result & ASUS_WMI_DSTS_PRESENCE_BIT) &&
2291                         (result & ASUS_FAN_BOOST_MODES_MASK)) {
2292                 asus->fan_boost_mode_available = true;
2293                 asus->fan_boost_mode_mask = result & ASUS_FAN_BOOST_MODES_MASK;
2294         }
2295
2296         return 0;
2297 }
2298
2299 static int fan_boost_mode_write(struct asus_wmi *asus)
2300 {
2301         u32 retval;
2302         u8 value;
2303         int err;
2304
2305         value = asus->fan_boost_mode;
2306
2307         pr_info("Set fan boost mode: %u\n", value);
2308         err = asus_wmi_set_devstate(ASUS_WMI_DEVID_FAN_BOOST_MODE, value,
2309                                     &retval);
2310
2311         sysfs_notify(&asus->platform_device->dev.kobj, NULL,
2312                         "fan_boost_mode");
2313
2314         if (err) {
2315                 pr_warn("Failed to set fan boost mode: %d\n", err);
2316                 return err;
2317         }
2318
2319         if (retval != 1) {
2320                 pr_warn("Failed to set fan boost mode (retval): 0x%x\n",
2321                         retval);
2322                 return -EIO;
2323         }
2324
2325         return 0;
2326 }
2327
2328 static int fan_boost_mode_switch_next(struct asus_wmi *asus)
2329 {
2330         u8 mask = asus->fan_boost_mode_mask;
2331
2332         if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_NORMAL) {
2333                 if (mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK)
2334                         asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_OVERBOOST;
2335                 else if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK)
2336                         asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT;
2337         } else if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) {
2338                 if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK)
2339                         asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT;
2340                 else
2341                         asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL;
2342         } else {
2343                 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL;
2344         }
2345
2346         return fan_boost_mode_write(asus);
2347 }
2348
2349 static ssize_t fan_boost_mode_show(struct device *dev,
2350                                    struct device_attribute *attr, char *buf)
2351 {
2352         struct asus_wmi *asus = dev_get_drvdata(dev);
2353
2354         return sysfs_emit(buf, "%d\n", asus->fan_boost_mode);
2355 }
2356
2357 static ssize_t fan_boost_mode_store(struct device *dev,
2358                                     struct device_attribute *attr,
2359                                     const char *buf, size_t count)
2360 {
2361         struct asus_wmi *asus = dev_get_drvdata(dev);
2362         u8 mask = asus->fan_boost_mode_mask;
2363         u8 new_mode;
2364         int result;
2365
2366         result = kstrtou8(buf, 10, &new_mode);
2367         if (result < 0) {
2368                 pr_warn("Trying to store invalid value\n");
2369                 return result;
2370         }
2371
2372         if (new_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) {
2373                 if (!(mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK))
2374                         return -EINVAL;
2375         } else if (new_mode == ASUS_FAN_BOOST_MODE_SILENT) {
2376                 if (!(mask & ASUS_FAN_BOOST_MODE_SILENT_MASK))
2377                         return -EINVAL;
2378         } else if (new_mode != ASUS_FAN_BOOST_MODE_NORMAL) {
2379                 return -EINVAL;
2380         }
2381
2382         asus->fan_boost_mode = new_mode;
2383         fan_boost_mode_write(asus);
2384
2385         return count;
2386 }
2387
2388 // Fan boost mode: 0 - normal, 1 - overboost, 2 - silent
2389 static DEVICE_ATTR_RW(fan_boost_mode);
2390
2391 /* Custom fan curves **********************************************************/
2392
2393 static void fan_curve_copy_from_buf(struct fan_curve_data *data, u8 *buf)
2394 {
2395         int i;
2396
2397         for (i = 0; i < FAN_CURVE_POINTS; i++) {
2398                 data->temps[i] = buf[i];
2399         }
2400
2401         for (i = 0; i < FAN_CURVE_POINTS; i++) {
2402                 data->percents[i] =
2403                         255 * buf[i + FAN_CURVE_POINTS] / 100;
2404         }
2405 }
2406
2407 static int fan_curve_get_factory_default(struct asus_wmi *asus, u32 fan_dev)
2408 {
2409         struct fan_curve_data *curves;
2410         u8 buf[FAN_CURVE_BUF_LEN];
2411         int fan_idx = 0;
2412         u8 mode = 0;
2413         int err;
2414
2415         if (asus->throttle_thermal_policy_available)
2416                 mode = asus->throttle_thermal_policy_mode;
2417         /* DEVID_<C/G>PU_FAN_CURVE is switched for OVERBOOST vs SILENT */
2418         if (mode == 2)
2419                 mode = 1;
2420         else if (mode == 1)
2421                 mode = 2;
2422
2423         if (fan_dev == ASUS_WMI_DEVID_GPU_FAN_CURVE)
2424                 fan_idx = FAN_CURVE_DEV_GPU;
2425
2426         curves = &asus->custom_fan_curves[fan_idx];
2427         err = asus_wmi_evaluate_method_buf(asus->dsts_id, fan_dev, mode, buf,
2428                                            FAN_CURVE_BUF_LEN);
2429         if (err) {
2430                 pr_warn("%s (0x%08x) failed: %d\n", __func__, fan_dev, err);
2431                 return err;
2432         }
2433
2434         fan_curve_copy_from_buf(curves, buf);
2435         curves->device_id = fan_dev;
2436
2437         return 0;
2438 }
2439
2440 /* Check if capability exists, and populate defaults */
2441 static int fan_curve_check_present(struct asus_wmi *asus, bool *available,
2442                                    u32 fan_dev)
2443 {
2444         int err;
2445
2446         *available = false;
2447
2448         if (asus->fan_type == FAN_TYPE_NONE)
2449                 return 0;
2450
2451         err = fan_curve_get_factory_default(asus, fan_dev);
2452         if (err) {
2453                 return 0;
2454         }
2455
2456         *available = true;
2457         return 0;
2458 }
2459
2460 /* Determine which fan the attribute is for if SENSOR_ATTR */
2461 static struct fan_curve_data *fan_curve_attr_select(struct asus_wmi *asus,
2462                                               struct device_attribute *attr)
2463 {
2464         int index = to_sensor_dev_attr(attr)->index;
2465
2466         return &asus->custom_fan_curves[index & FAN_CURVE_DEV_GPU];
2467 }
2468
2469 /* Determine which fan the attribute is for if SENSOR_ATTR_2 */
2470 static struct fan_curve_data *fan_curve_attr_2_select(struct asus_wmi *asus,
2471                                             struct device_attribute *attr)
2472 {
2473         int nr = to_sensor_dev_attr_2(attr)->nr;
2474
2475         return &asus->custom_fan_curves[nr & FAN_CURVE_DEV_GPU];
2476 }
2477
2478 static ssize_t fan_curve_show(struct device *dev,
2479                               struct device_attribute *attr, char *buf)
2480 {
2481         struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr);
2482         struct asus_wmi *asus = dev_get_drvdata(dev);
2483         struct fan_curve_data *data;
2484         int value, index, nr;
2485
2486         data = fan_curve_attr_2_select(asus, attr);
2487         index = dev_attr->index;
2488         nr = dev_attr->nr;
2489
2490         if (nr & FAN_CURVE_PWM_MASK)
2491                 value = data->percents[index];
2492         else
2493                 value = data->temps[index];
2494
2495         return sysfs_emit(buf, "%d\n", value);
2496 }
2497
2498 /*
2499  * "fan_dev" is the related WMI method such as ASUS_WMI_DEVID_CPU_FAN_CURVE.
2500  */
2501 static int fan_curve_write(struct asus_wmi *asus,
2502                            struct fan_curve_data *data)
2503 {
2504         u32 arg1 = 0, arg2 = 0, arg3 = 0, arg4 = 0;
2505         u8 *percents = data->percents;
2506         u8 *temps = data->temps;
2507         int ret, i, shift = 0;
2508
2509         if (!data->enabled)
2510                 return 0;
2511
2512         for (i = 0; i < FAN_CURVE_POINTS / 2; i++) {
2513                 arg1 += (temps[i]) << shift;
2514                 arg2 += (temps[i + 4]) << shift;
2515                 /* Scale to percentage for device */
2516                 arg3 += (100 * percents[i] / 255) << shift;
2517                 arg4 += (100 * percents[i + 4] / 255) << shift;
2518                 shift += 8;
2519         }
2520
2521         return asus_wmi_evaluate_method5(ASUS_WMI_METHODID_DEVS,
2522                                          data->device_id,
2523                                          arg1, arg2, arg3, arg4, &ret);
2524 }
2525
2526 static ssize_t fan_curve_store(struct device *dev,
2527                                struct device_attribute *attr, const char *buf,
2528                                size_t count)
2529 {
2530         struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr);
2531         struct asus_wmi *asus = dev_get_drvdata(dev);
2532         struct fan_curve_data *data;
2533         u8 value;
2534         int err;
2535
2536         int pwm = dev_attr->nr & FAN_CURVE_PWM_MASK;
2537         int index = dev_attr->index;
2538
2539         data = fan_curve_attr_2_select(asus, attr);
2540
2541         err = kstrtou8(buf, 10, &value);
2542         if (err < 0)
2543                 return err;
2544
2545         if (pwm) {
2546                 data->percents[index] = value;
2547         } else {
2548                 data->temps[index] = value;
2549         }
2550
2551         /*
2552          * Mark as disabled so the user has to explicitly enable to apply a
2553          * changed fan curve. This prevents potential lockups from writing out
2554          * many changes as one-write-per-change.
2555          */
2556         data->enabled = false;
2557
2558         return count;
2559 }
2560
2561 static ssize_t fan_curve_enable_show(struct device *dev,
2562                                      struct device_attribute *attr, char *buf)
2563 {
2564         struct asus_wmi *asus = dev_get_drvdata(dev);
2565         struct fan_curve_data *data;
2566         int out = 2;
2567
2568         data = fan_curve_attr_select(asus, attr);
2569
2570         if (data->enabled)
2571                 out = 1;
2572
2573         return sysfs_emit(buf, "%d\n", out);
2574 }
2575
2576 static ssize_t fan_curve_enable_store(struct device *dev,
2577                                       struct device_attribute *attr,
2578                                       const char *buf, size_t count)
2579 {
2580         struct asus_wmi *asus = dev_get_drvdata(dev);
2581         struct fan_curve_data *data;
2582         int value, err;
2583
2584         data = fan_curve_attr_select(asus, attr);
2585
2586         err = kstrtoint(buf, 10, &value);
2587         if (err < 0)
2588                 return err;
2589
2590         switch (value) {
2591         case 1:
2592                 data->enabled = true;
2593                 break;
2594         case 2:
2595                 data->enabled = false;
2596                 break;
2597         /*
2598          * Auto + reset the fan curve data to defaults. Make it an explicit
2599          * option so that users don't accidentally overwrite a set fan curve.
2600          */
2601         case 3:
2602                 err = fan_curve_get_factory_default(asus, data->device_id);
2603                 if (err)
2604                         return err;
2605                 data->enabled = false;
2606                 break;
2607         default:
2608                 return -EINVAL;
2609         }
2610
2611         if (data->enabled) {
2612                 err = fan_curve_write(asus, data);
2613                 if (err)
2614                         return err;
2615         } else {
2616                 /*
2617                  * For machines with throttle this is the only way to reset fans
2618                  * to default mode of operation (does not erase curve data).
2619                  */
2620                 if (asus->throttle_thermal_policy_available) {
2621                         err = throttle_thermal_policy_write(asus);
2622                         if (err)
2623                                 return err;
2624                 /* Similar is true for laptops with this fan */
2625                 } else if (asus->fan_type == FAN_TYPE_SPEC83) {
2626                         err = asus_fan_set_auto(asus);
2627                         if (err)
2628                                 return err;
2629                 } else {
2630                         /* Safeguard against fautly ACPI tables */
2631                         err = fan_curve_get_factory_default(asus, data->device_id);
2632                         if (err)
2633                                 return err;
2634                         err = fan_curve_write(asus, data);
2635                         if (err)
2636                                 return err;
2637                 }
2638         }
2639         return count;
2640 }
2641
2642 /* CPU */
2643 static SENSOR_DEVICE_ATTR_RW(pwm1_enable, fan_curve_enable, FAN_CURVE_DEV_CPU);
2644 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_temp, fan_curve,
2645                                FAN_CURVE_DEV_CPU, 0);
2646 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_temp, fan_curve,
2647                                FAN_CURVE_DEV_CPU, 1);
2648 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_temp, fan_curve,
2649                                FAN_CURVE_DEV_CPU, 2);
2650 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_temp, fan_curve,
2651                                FAN_CURVE_DEV_CPU, 3);
2652 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_temp, fan_curve,
2653                                FAN_CURVE_DEV_CPU, 4);
2654 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_temp, fan_curve,
2655                                FAN_CURVE_DEV_CPU, 5);
2656 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_temp, fan_curve,
2657                                FAN_CURVE_DEV_CPU, 6);
2658 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_temp, fan_curve,
2659                                FAN_CURVE_DEV_CPU, 7);
2660
2661 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_pwm, fan_curve,
2662                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 0);
2663 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_pwm, fan_curve,
2664                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 1);
2665 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_pwm, fan_curve,
2666                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 2);
2667 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_pwm, fan_curve,
2668                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 3);
2669 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_pwm, fan_curve,
2670                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 4);
2671 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_pwm, fan_curve,
2672                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 5);
2673 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_pwm, fan_curve,
2674                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 6);
2675 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_pwm, fan_curve,
2676                                FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 7);
2677
2678 /* GPU */
2679 static SENSOR_DEVICE_ATTR_RW(pwm2_enable, fan_curve_enable, FAN_CURVE_DEV_GPU);
2680 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_temp, fan_curve,
2681                                FAN_CURVE_DEV_GPU, 0);
2682 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_temp, fan_curve,
2683                                FAN_CURVE_DEV_GPU, 1);
2684 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_temp, fan_curve,
2685                                FAN_CURVE_DEV_GPU, 2);
2686 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_temp, fan_curve,
2687                                FAN_CURVE_DEV_GPU, 3);
2688 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_temp, fan_curve,
2689                                FAN_CURVE_DEV_GPU, 4);
2690 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_temp, fan_curve,
2691                                FAN_CURVE_DEV_GPU, 5);
2692 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_temp, fan_curve,
2693                                FAN_CURVE_DEV_GPU, 6);
2694 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_temp, fan_curve,
2695                                FAN_CURVE_DEV_GPU, 7);
2696
2697 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_pwm, fan_curve,
2698                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 0);
2699 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_pwm, fan_curve,
2700                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 1);
2701 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_pwm, fan_curve,
2702                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 2);
2703 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_pwm, fan_curve,
2704                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 3);
2705 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_pwm, fan_curve,
2706                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 4);
2707 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_pwm, fan_curve,
2708                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 5);
2709 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_pwm, fan_curve,
2710                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 6);
2711 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_pwm, fan_curve,
2712                                FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 7);
2713
2714 static struct attribute *asus_fan_curve_attr[] = {
2715         /* CPU */
2716         &sensor_dev_attr_pwm1_enable.dev_attr.attr,
2717         &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
2718         &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
2719         &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
2720         &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
2721         &sensor_dev_attr_pwm1_auto_point5_temp.dev_attr.attr,
2722         &sensor_dev_attr_pwm1_auto_point6_temp.dev_attr.attr,
2723         &sensor_dev_attr_pwm1_auto_point7_temp.dev_attr.attr,
2724         &sensor_dev_attr_pwm1_auto_point8_temp.dev_attr.attr,
2725         &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
2726         &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
2727         &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
2728         &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
2729         &sensor_dev_attr_pwm1_auto_point5_pwm.dev_attr.attr,
2730         &sensor_dev_attr_pwm1_auto_point6_pwm.dev_attr.attr,
2731         &sensor_dev_attr_pwm1_auto_point7_pwm.dev_attr.attr,
2732         &sensor_dev_attr_pwm1_auto_point8_pwm.dev_attr.attr,
2733         /* GPU */
2734         &sensor_dev_attr_pwm2_enable.dev_attr.attr,
2735         &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
2736         &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
2737         &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
2738         &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
2739         &sensor_dev_attr_pwm2_auto_point5_temp.dev_attr.attr,
2740         &sensor_dev_attr_pwm2_auto_point6_temp.dev_attr.attr,
2741         &sensor_dev_attr_pwm2_auto_point7_temp.dev_attr.attr,
2742         &sensor_dev_attr_pwm2_auto_point8_temp.dev_attr.attr,
2743         &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
2744         &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
2745         &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
2746         &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,
2747         &sensor_dev_attr_pwm2_auto_point5_pwm.dev_attr.attr,
2748         &sensor_dev_attr_pwm2_auto_point6_pwm.dev_attr.attr,
2749         &sensor_dev_attr_pwm2_auto_point7_pwm.dev_attr.attr,
2750         &sensor_dev_attr_pwm2_auto_point8_pwm.dev_attr.attr,
2751         NULL
2752 };
2753
2754 static umode_t asus_fan_curve_is_visible(struct kobject *kobj,
2755                                          struct attribute *attr, int idx)
2756 {
2757         struct device *dev = kobj_to_dev(kobj);
2758         struct asus_wmi *asus = dev_get_drvdata(dev->parent);
2759
2760         /*
2761          * Check the char instead of casting attr as there are two attr types
2762          * involved here (attr1 and attr2)
2763          */
2764         if (asus->cpu_fan_curve_available && attr->name[3] == '1')
2765                 return 0644;
2766
2767         if (asus->gpu_fan_curve_available && attr->name[3] == '2')
2768                 return 0644;
2769
2770         return 0;
2771 }
2772
2773 static const struct attribute_group asus_fan_curve_attr_group = {
2774         .is_visible = asus_fan_curve_is_visible,
2775         .attrs = asus_fan_curve_attr,
2776 };
2777 __ATTRIBUTE_GROUPS(asus_fan_curve_attr);
2778
2779 /*
2780  * Must be initialised after throttle_thermal_policy_check_present() as
2781  * we check the status of throttle_thermal_policy_available during init.
2782  */
2783 static int asus_wmi_custom_fan_curve_init(struct asus_wmi *asus)
2784 {
2785         struct device *dev = &asus->platform_device->dev;
2786         struct device *hwmon;
2787         int err;
2788
2789         err = fan_curve_check_present(asus, &asus->cpu_fan_curve_available,
2790                                       ASUS_WMI_DEVID_CPU_FAN_CURVE);
2791         if (err)
2792                 return err;
2793
2794         err = fan_curve_check_present(asus, &asus->gpu_fan_curve_available,
2795                                       ASUS_WMI_DEVID_GPU_FAN_CURVE);
2796         if (err)
2797                 return err;
2798
2799         if (!asus->cpu_fan_curve_available && !asus->gpu_fan_curve_available)
2800                 return 0;
2801
2802         hwmon = devm_hwmon_device_register_with_groups(
2803                 dev, "asus_custom_fan_curve", asus, asus_fan_curve_attr_groups);
2804
2805         if (IS_ERR(hwmon)) {
2806                 dev_err(dev,
2807                         "Could not register asus_custom_fan_curve device\n");
2808                 return PTR_ERR(hwmon);
2809         }
2810
2811         return 0;
2812 }
2813
2814 /* Throttle thermal policy ****************************************************/
2815
2816 static int throttle_thermal_policy_check_present(struct asus_wmi *asus)
2817 {
2818         u32 result;
2819         int err;
2820
2821         asus->throttle_thermal_policy_available = false;
2822
2823         err = asus_wmi_get_devstate(asus,
2824                                     ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY,
2825                                     &result);
2826         if (err) {
2827                 if (err == -ENODEV)
2828                         return 0;
2829                 return err;
2830         }
2831
2832         if (result & ASUS_WMI_DSTS_PRESENCE_BIT)
2833                 asus->throttle_thermal_policy_available = true;
2834
2835         return 0;
2836 }
2837
2838 static int throttle_thermal_policy_write(struct asus_wmi *asus)
2839 {
2840         int err;
2841         u8 value;
2842         u32 retval;
2843
2844         value = asus->throttle_thermal_policy_mode;
2845
2846         err = asus_wmi_set_devstate(ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY,
2847                                     value, &retval);
2848
2849         sysfs_notify(&asus->platform_device->dev.kobj, NULL,
2850                         "throttle_thermal_policy");
2851
2852         if (err) {
2853                 pr_warn("Failed to set throttle thermal policy: %d\n", err);
2854                 return err;
2855         }
2856
2857         if (retval != 1) {
2858                 pr_warn("Failed to set throttle thermal policy (retval): 0x%x\n",
2859                         retval);
2860                 return -EIO;
2861         }
2862
2863         /* Must set to disabled if mode is toggled */
2864         if (asus->cpu_fan_curve_available)
2865                 asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false;
2866         if (asus->gpu_fan_curve_available)
2867                 asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false;
2868
2869         return 0;
2870 }
2871
2872 static int throttle_thermal_policy_set_default(struct asus_wmi *asus)
2873 {
2874         if (!asus->throttle_thermal_policy_available)
2875                 return 0;
2876
2877         asus->throttle_thermal_policy_mode = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
2878         return throttle_thermal_policy_write(asus);
2879 }
2880
2881 static int throttle_thermal_policy_switch_next(struct asus_wmi *asus)
2882 {
2883         u8 new_mode = asus->throttle_thermal_policy_mode + 1;
2884         int err;
2885
2886         if (new_mode > ASUS_THROTTLE_THERMAL_POLICY_SILENT)
2887                 new_mode = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
2888
2889         asus->throttle_thermal_policy_mode = new_mode;
2890         err = throttle_thermal_policy_write(asus);
2891         if (err)
2892                 return err;
2893
2894         /*
2895          * Ensure that platform_profile updates userspace with the change to ensure
2896          * that platform_profile and throttle_thermal_policy_mode are in sync.
2897          */
2898         platform_profile_notify();
2899
2900         return 0;
2901 }
2902
2903 static ssize_t throttle_thermal_policy_show(struct device *dev,
2904                                    struct device_attribute *attr, char *buf)
2905 {
2906         struct asus_wmi *asus = dev_get_drvdata(dev);
2907         u8 mode = asus->throttle_thermal_policy_mode;
2908
2909         return sysfs_emit(buf, "%d\n", mode);
2910 }
2911
2912 static ssize_t throttle_thermal_policy_store(struct device *dev,
2913                                     struct device_attribute *attr,
2914                                     const char *buf, size_t count)
2915 {
2916         struct asus_wmi *asus = dev_get_drvdata(dev);
2917         u8 new_mode;
2918         int result;
2919         int err;
2920
2921         result = kstrtou8(buf, 10, &new_mode);
2922         if (result < 0)
2923                 return result;
2924
2925         if (new_mode > ASUS_THROTTLE_THERMAL_POLICY_SILENT)
2926                 return -EINVAL;
2927
2928         asus->throttle_thermal_policy_mode = new_mode;
2929         err = throttle_thermal_policy_write(asus);
2930         if (err)
2931                 return err;
2932
2933         /*
2934          * Ensure that platform_profile updates userspace with the change to ensure
2935          * that platform_profile and throttle_thermal_policy_mode are in sync.
2936          */
2937         platform_profile_notify();
2938
2939         return count;
2940 }
2941
2942 // Throttle thermal policy: 0 - default, 1 - overboost, 2 - silent
2943 static DEVICE_ATTR_RW(throttle_thermal_policy);
2944
2945 /* Platform profile ***********************************************************/
2946 static int asus_wmi_platform_profile_get(struct platform_profile_handler *pprof,
2947                                         enum platform_profile_option *profile)
2948 {
2949         struct asus_wmi *asus;
2950         int tp;
2951
2952         asus = container_of(pprof, struct asus_wmi, platform_profile_handler);
2953
2954         tp = asus->throttle_thermal_policy_mode;
2955
2956         switch (tp) {
2957         case ASUS_THROTTLE_THERMAL_POLICY_DEFAULT:
2958                 *profile = PLATFORM_PROFILE_BALANCED;
2959                 break;
2960         case ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST:
2961                 *profile = PLATFORM_PROFILE_PERFORMANCE;
2962                 break;
2963         case ASUS_THROTTLE_THERMAL_POLICY_SILENT:
2964                 *profile = PLATFORM_PROFILE_QUIET;
2965                 break;
2966         default:
2967                 return -EINVAL;
2968         }
2969
2970         return 0;
2971 }
2972
2973 static int asus_wmi_platform_profile_set(struct platform_profile_handler *pprof,
2974                                         enum platform_profile_option profile)
2975 {
2976         struct asus_wmi *asus;
2977         int tp;
2978
2979         asus = container_of(pprof, struct asus_wmi, platform_profile_handler);
2980
2981         switch (profile) {
2982         case PLATFORM_PROFILE_PERFORMANCE:
2983                 tp = ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST;
2984                 break;
2985         case PLATFORM_PROFILE_BALANCED:
2986                 tp = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
2987                 break;
2988         case PLATFORM_PROFILE_QUIET:
2989                 tp = ASUS_THROTTLE_THERMAL_POLICY_SILENT;
2990                 break;
2991         default:
2992                 return -EOPNOTSUPP;
2993         }
2994
2995         asus->throttle_thermal_policy_mode = tp;
2996         return throttle_thermal_policy_write(asus);
2997 }
2998
2999 static int platform_profile_setup(struct asus_wmi *asus)
3000 {
3001         struct device *dev = &asus->platform_device->dev;
3002         int err;
3003
3004         /*
3005          * Not an error if a component platform_profile relies on is unavailable
3006          * so early return, skipping the setup of platform_profile.
3007          */
3008         if (!asus->throttle_thermal_policy_available)
3009                 return 0;
3010
3011         dev_info(dev, "Using throttle_thermal_policy for platform_profile support\n");
3012
3013         asus->platform_profile_handler.profile_get = asus_wmi_platform_profile_get;
3014         asus->platform_profile_handler.profile_set = asus_wmi_platform_profile_set;
3015
3016         set_bit(PLATFORM_PROFILE_QUIET, asus->platform_profile_handler.choices);
3017         set_bit(PLATFORM_PROFILE_BALANCED,
3018                 asus->platform_profile_handler.choices);
3019         set_bit(PLATFORM_PROFILE_PERFORMANCE,
3020                 asus->platform_profile_handler.choices);
3021
3022         err = platform_profile_register(&asus->platform_profile_handler);
3023         if (err)
3024                 return err;
3025
3026         asus->platform_profile_support = true;
3027         return 0;
3028 }
3029
3030 /* Backlight ******************************************************************/
3031
3032 static int read_backlight_power(struct asus_wmi *asus)
3033 {
3034         int ret;
3035
3036         if (asus->driver->quirks->store_backlight_power)
3037                 ret = !asus->driver->panel_power;
3038         else
3039                 ret = asus_wmi_get_devstate_simple(asus,
3040                                                    ASUS_WMI_DEVID_BACKLIGHT);
3041
3042         if (ret < 0)
3043                 return ret;
3044
3045         return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
3046 }
3047
3048 static int read_brightness_max(struct asus_wmi *asus)
3049 {
3050         u32 retval;
3051         int err;
3052
3053         err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
3054         if (err < 0)
3055                 return err;
3056
3057         retval = retval & ASUS_WMI_DSTS_MAX_BRIGTH_MASK;
3058         retval >>= 8;
3059
3060         if (!retval)
3061                 return -ENODEV;
3062
3063         return retval;
3064 }
3065
3066 static int read_brightness(struct backlight_device *bd)
3067 {
3068         struct asus_wmi *asus = bl_get_data(bd);
3069         u32 retval;
3070         int err;
3071
3072         err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
3073         if (err < 0)
3074                 return err;
3075
3076         return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
3077 }
3078
3079 static u32 get_scalar_command(struct backlight_device *bd)
3080 {
3081         struct asus_wmi *asus = bl_get_data(bd);
3082         u32 ctrl_param = 0;
3083
3084         if ((asus->driver->brightness < bd->props.brightness) ||
3085             bd->props.brightness == bd->props.max_brightness)
3086                 ctrl_param = 0x00008001;
3087         else if ((asus->driver->brightness > bd->props.brightness) ||
3088                  bd->props.brightness == 0)
3089                 ctrl_param = 0x00008000;
3090
3091         asus->driver->brightness = bd->props.brightness;
3092
3093         return ctrl_param;
3094 }
3095
3096 static int update_bl_status(struct backlight_device *bd)
3097 {
3098         struct asus_wmi *asus = bl_get_data(bd);
3099         u32 ctrl_param;
3100         int power, err = 0;
3101
3102         power = read_backlight_power(asus);
3103         if (power != -ENODEV && bd->props.power != power) {
3104                 ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK);
3105                 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT,
3106                                             ctrl_param, NULL);
3107                 if (asus->driver->quirks->store_backlight_power)
3108                         asus->driver->panel_power = bd->props.power;
3109
3110                 /* When using scalar brightness, updating the brightness
3111                  * will mess with the backlight power */
3112                 if (asus->driver->quirks->scalar_panel_brightness)
3113                         return err;
3114         }
3115
3116         if (asus->driver->quirks->scalar_panel_brightness)
3117                 ctrl_param = get_scalar_command(bd);
3118         else
3119                 ctrl_param = bd->props.brightness;
3120
3121         err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS,
3122                                     ctrl_param, NULL);
3123
3124         return err;
3125 }
3126
3127 static const struct backlight_ops asus_wmi_bl_ops = {
3128         .get_brightness = read_brightness,
3129         .update_status = update_bl_status,
3130 };
3131
3132 static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code)
3133 {
3134         struct backlight_device *bd = asus->backlight_device;
3135         int old = bd->props.brightness;
3136         int new = old;
3137
3138         if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
3139                 new = code - NOTIFY_BRNUP_MIN + 1;
3140         else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
3141                 new = code - NOTIFY_BRNDOWN_MIN;
3142
3143         bd->props.brightness = new;
3144         backlight_update_status(bd);
3145         backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
3146
3147         return old;
3148 }
3149
3150 static int asus_wmi_backlight_init(struct asus_wmi *asus)
3151 {
3152         struct backlight_device *bd;
3153         struct backlight_properties props;
3154         int max;
3155         int power;
3156
3157         max = read_brightness_max(asus);
3158         if (max < 0)
3159                 return max;
3160
3161         power = read_backlight_power(asus);
3162         if (power == -ENODEV)
3163                 power = FB_BLANK_UNBLANK;
3164         else if (power < 0)
3165                 return power;
3166
3167         memset(&props, 0, sizeof(struct backlight_properties));
3168         props.type = BACKLIGHT_PLATFORM;
3169         props.max_brightness = max;
3170         bd = backlight_device_register(asus->driver->name,
3171                                        &asus->platform_device->dev, asus,
3172                                        &asus_wmi_bl_ops, &props);
3173         if (IS_ERR(bd)) {
3174                 pr_err("Could not register backlight device\n");
3175                 return PTR_ERR(bd);
3176         }
3177
3178         asus->backlight_device = bd;
3179
3180         if (asus->driver->quirks->store_backlight_power)
3181                 asus->driver->panel_power = power;
3182
3183         bd->props.brightness = read_brightness(bd);
3184         bd->props.power = power;
3185         backlight_update_status(bd);
3186
3187         asus->driver->brightness = bd->props.brightness;
3188
3189         return 0;
3190 }
3191
3192 static void asus_wmi_backlight_exit(struct asus_wmi *asus)
3193 {
3194         backlight_device_unregister(asus->backlight_device);
3195
3196         asus->backlight_device = NULL;
3197 }
3198
3199 static int is_display_toggle(int code)
3200 {
3201         /* display toggle keys */
3202         if ((code >= 0x61 && code <= 0x67) ||
3203             (code >= 0x8c && code <= 0x93) ||
3204             (code >= 0xa0 && code <= 0xa7) ||
3205             (code >= 0xd0 && code <= 0xd5))
3206                 return 1;
3207
3208         return 0;
3209 }
3210
3211 /* Fn-lock ********************************************************************/
3212
3213 static bool asus_wmi_has_fnlock_key(struct asus_wmi *asus)
3214 {
3215         u32 result;
3216
3217         asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FNLOCK, &result);
3218
3219         return (result & ASUS_WMI_DSTS_PRESENCE_BIT) &&
3220                 !(result & ASUS_WMI_FNLOCK_BIOS_DISABLED);
3221 }
3222
3223 static void asus_wmi_fnlock_update(struct asus_wmi *asus)
3224 {
3225         int mode = asus->fnlock_locked;
3226
3227         asus_wmi_set_devstate(ASUS_WMI_DEVID_FNLOCK, mode, NULL);
3228 }
3229
3230 /* WMI events *****************************************************************/
3231
3232 static int asus_wmi_get_event_code(u32 value)
3233 {
3234         struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
3235         union acpi_object *obj;
3236         acpi_status status;
3237         int code;
3238
3239         status = wmi_get_event_data(value, &response);
3240         if (ACPI_FAILURE(status)) {
3241                 pr_warn("Failed to get WMI notify code: %s\n",
3242                                 acpi_format_exception(status));
3243                 return -EIO;
3244         }
3245
3246         obj = (union acpi_object *)response.pointer;
3247
3248         if (obj && obj->type == ACPI_TYPE_INTEGER)
3249                 code = (int)(obj->integer.value & WMI_EVENT_MASK);
3250         else
3251                 code = -EIO;
3252
3253         kfree(obj);
3254         return code;
3255 }
3256
3257 static void asus_wmi_handle_event_code(int code, struct asus_wmi *asus)
3258 {
3259         unsigned int key_value = 1;
3260         bool autorelease = 1;
3261         int orig_code = code;
3262
3263         if (asus->driver->key_filter) {
3264                 asus->driver->key_filter(asus->driver, &code, &key_value,
3265                                          &autorelease);
3266                 if (code == ASUS_WMI_KEY_IGNORE)
3267                         return;
3268         }
3269
3270         if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
3271                 code = ASUS_WMI_BRN_UP;
3272         else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
3273                 code = ASUS_WMI_BRN_DOWN;
3274
3275         if (code == ASUS_WMI_BRN_DOWN || code == ASUS_WMI_BRN_UP) {
3276                 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
3277                         asus_wmi_backlight_notify(asus, orig_code);
3278                         return;
3279                 }
3280         }
3281
3282         if (code == NOTIFY_KBD_BRTUP) {
3283                 kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1);
3284                 return;
3285         }
3286         if (code == NOTIFY_KBD_BRTDWN) {
3287                 kbd_led_set_by_kbd(asus, asus->kbd_led_wk - 1);
3288                 return;
3289         }
3290         if (code == NOTIFY_KBD_BRTTOGGLE) {
3291                 if (asus->kbd_led_wk == asus->kbd_led.max_brightness)
3292                         kbd_led_set_by_kbd(asus, 0);
3293                 else
3294                         kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1);
3295                 return;
3296         }
3297
3298         if (code == NOTIFY_FNLOCK_TOGGLE) {
3299                 asus->fnlock_locked = !asus->fnlock_locked;
3300                 asus_wmi_fnlock_update(asus);
3301                 return;
3302         }
3303
3304         if (code == asus->tablet_switch_event_code) {
3305                 asus_wmi_tablet_mode_get_state(asus);
3306                 return;
3307         }
3308
3309         if (code == NOTIFY_KBD_FBM || code == NOTIFY_KBD_TTP) {
3310                 if (asus->fan_boost_mode_available)
3311                         fan_boost_mode_switch_next(asus);
3312                 if (asus->throttle_thermal_policy_available)
3313                         throttle_thermal_policy_switch_next(asus);
3314                 return;
3315
3316         }
3317
3318         if (is_display_toggle(code) && asus->driver->quirks->no_display_toggle)
3319                 return;
3320
3321         if (!sparse_keymap_report_event(asus->inputdev, code,
3322                                         key_value, autorelease))
3323                 pr_info("Unknown key code 0x%x\n", code);
3324 }
3325
3326 static void asus_wmi_notify(u32 value, void *context)
3327 {
3328         struct asus_wmi *asus = context;
3329         int code;
3330         int i;
3331
3332         for (i = 0; i < WMI_EVENT_QUEUE_SIZE + 1; i++) {
3333                 code = asus_wmi_get_event_code(value);
3334                 if (code < 0) {
3335                         pr_warn("Failed to get notify code: %d\n", code);
3336                         return;
3337                 }
3338
3339                 if (code == WMI_EVENT_QUEUE_END || code == WMI_EVENT_MASK)
3340                         return;
3341
3342                 asus_wmi_handle_event_code(code, asus);
3343
3344                 /*
3345                  * Double check that queue is present:
3346                  * ATK (with queue) uses 0xff, ASUSWMI (without) 0xd2.
3347                  */
3348                 if (!asus->wmi_event_queue || value != WMI_EVENT_VALUE_ATK)
3349                         return;
3350         }
3351
3352         pr_warn("Failed to process event queue, last code: 0x%x\n", code);
3353 }
3354
3355 static int asus_wmi_notify_queue_flush(struct asus_wmi *asus)
3356 {
3357         int code;
3358         int i;
3359
3360         for (i = 0; i < WMI_EVENT_QUEUE_SIZE + 1; i++) {
3361                 code = asus_wmi_get_event_code(WMI_EVENT_VALUE_ATK);
3362                 if (code < 0) {
3363                         pr_warn("Failed to get event during flush: %d\n", code);
3364                         return code;
3365                 }
3366
3367                 if (code == WMI_EVENT_QUEUE_END || code == WMI_EVENT_MASK)
3368                         return 0;
3369         }
3370
3371         pr_warn("Failed to flush event queue\n");
3372         return -EIO;
3373 }
3374
3375 /* Sysfs **********************************************************************/
3376
3377 static ssize_t store_sys_wmi(struct asus_wmi *asus, int devid,
3378                              const char *buf, size_t count)
3379 {
3380         u32 retval;
3381         int err, value;
3382
3383         value = asus_wmi_get_devstate_simple(asus, devid);
3384         if (value < 0)
3385                 return value;
3386
3387         err = kstrtoint(buf, 0, &value);
3388         if (err)
3389                 return err;
3390
3391         err = asus_wmi_set_devstate(devid, value, &retval);
3392         if (err < 0)
3393                 return err;
3394
3395         return count;
3396 }
3397
3398 static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
3399 {
3400         int value = asus_wmi_get_devstate_simple(asus, devid);
3401
3402         if (value < 0)
3403                 return value;
3404
3405         return sprintf(buf, "%d\n", value);
3406 }
3407
3408 #define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm)                  \
3409         static ssize_t show_##_name(struct device *dev,                 \
3410                                     struct device_attribute *attr,      \
3411                                     char *buf)                          \
3412         {                                                               \
3413                 struct asus_wmi *asus = dev_get_drvdata(dev);           \
3414                                                                         \
3415                 return show_sys_wmi(asus, _cm, buf);                    \
3416         }                                                               \
3417         static ssize_t store_##_name(struct device *dev,                \
3418                                      struct device_attribute *attr,     \
3419                                      const char *buf, size_t count)     \
3420         {                                                               \
3421                 struct asus_wmi *asus = dev_get_drvdata(dev);           \
3422                                                                         \
3423                 return store_sys_wmi(asus, _cm, buf, count);            \
3424         }                                                               \
3425         static struct device_attribute dev_attr_##_name = {             \
3426                 .attr = {                                               \
3427                         .name = __stringify(_name),                     \
3428                         .mode = _mode },                                \
3429                 .show   = show_##_name,                                 \
3430                 .store  = store_##_name,                                \
3431         }
3432
3433 ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD);
3434 ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA);
3435 ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
3436 ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume, 0644, ASUS_WMI_DEVID_LID_RESUME);
3437 ASUS_WMI_CREATE_DEVICE_ATTR(als_enable, 0644, ASUS_WMI_DEVID_ALS_ENABLE);
3438
3439 static ssize_t cpufv_store(struct device *dev, struct device_attribute *attr,
3440                            const char *buf, size_t count)
3441 {
3442         int value, rv;
3443
3444         rv = kstrtoint(buf, 0, &value);
3445         if (rv)
3446                 return rv;
3447
3448         if (value < 0 || value > 2)
3449                 return -EINVAL;
3450
3451         rv = asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL);
3452         if (rv < 0)
3453                 return rv;
3454
3455         return count;
3456 }
3457
3458 static DEVICE_ATTR_WO(cpufv);
3459
3460 static struct attribute *platform_attributes[] = {
3461         &dev_attr_cpufv.attr,
3462         &dev_attr_camera.attr,
3463         &dev_attr_cardr.attr,
3464         &dev_attr_touchpad.attr,
3465         &dev_attr_egpu_enable.attr,
3466         &dev_attr_dgpu_disable.attr,
3467         &dev_attr_gpu_mux_mode.attr,
3468         &dev_attr_lid_resume.attr,
3469         &dev_attr_als_enable.attr,
3470         &dev_attr_fan_boost_mode.attr,
3471         &dev_attr_throttle_thermal_policy.attr,
3472         &dev_attr_panel_od.attr,
3473         NULL
3474 };
3475
3476 static umode_t asus_sysfs_is_visible(struct kobject *kobj,
3477                                     struct attribute *attr, int idx)
3478 {
3479         struct device *dev = kobj_to_dev(kobj);
3480         struct asus_wmi *asus = dev_get_drvdata(dev);
3481         bool ok = true;
3482         int devid = -1;
3483
3484         if (attr == &dev_attr_camera.attr)
3485                 devid = ASUS_WMI_DEVID_CAMERA;
3486         else if (attr == &dev_attr_cardr.attr)
3487                 devid = ASUS_WMI_DEVID_CARDREADER;
3488         else if (attr == &dev_attr_touchpad.attr)
3489                 devid = ASUS_WMI_DEVID_TOUCHPAD;
3490         else if (attr == &dev_attr_lid_resume.attr)
3491                 devid = ASUS_WMI_DEVID_LID_RESUME;
3492         else if (attr == &dev_attr_als_enable.attr)
3493                 devid = ASUS_WMI_DEVID_ALS_ENABLE;
3494         else if (attr == &dev_attr_egpu_enable.attr)
3495                 ok = asus->egpu_enable_available;
3496         else if (attr == &dev_attr_dgpu_disable.attr)
3497                 ok = asus->dgpu_disable_available;
3498         else if (attr == &dev_attr_gpu_mux_mode.attr)
3499                 ok = asus->gpu_mux_mode_available;
3500         else if (attr == &dev_attr_fan_boost_mode.attr)
3501                 ok = asus->fan_boost_mode_available;
3502         else if (attr == &dev_attr_throttle_thermal_policy.attr)
3503                 ok = asus->throttle_thermal_policy_available;
3504         else if (attr == &dev_attr_panel_od.attr)
3505                 ok = asus->panel_overdrive_available;
3506
3507         if (devid != -1)
3508                 ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
3509
3510         return ok ? attr->mode : 0;
3511 }
3512
3513 static const struct attribute_group platform_attribute_group = {
3514         .is_visible = asus_sysfs_is_visible,
3515         .attrs = platform_attributes
3516 };
3517
3518 static void asus_wmi_sysfs_exit(struct platform_device *device)
3519 {
3520         sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
3521 }
3522
3523 static int asus_wmi_sysfs_init(struct platform_device *device)
3524 {
3525         return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
3526 }
3527
3528 /* Platform device ************************************************************/
3529
3530 static int asus_wmi_platform_init(struct asus_wmi *asus)
3531 {
3532         struct device *dev = &asus->platform_device->dev;
3533         char *wmi_uid;
3534         int rv;
3535
3536         /* INIT enable hotkeys on some models */
3537         if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv))
3538                 pr_info("Initialization: %#x\n", rv);
3539
3540         /* We don't know yet what to do with this version... */
3541         if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) {
3542                 pr_info("BIOS WMI version: %d.%d\n", rv >> 16, rv & 0xFF);
3543                 asus->spec = rv;
3544         }
3545
3546         /*
3547          * The SFUN method probably allows the original driver to get the list
3548          * of features supported by a given model. For now, 0x0100 or 0x0800
3549          * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
3550          * The significance of others is yet to be found.
3551          */
3552         if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) {
3553                 pr_info("SFUN value: %#x\n", rv);
3554                 asus->sfun = rv;
3555         }
3556
3557         /*
3558          * Eee PC and Notebooks seems to have different method_id for DSTS,
3559          * but it may also be related to the BIOS's SPEC.
3560          * Note, on most Eeepc, there is no way to check if a method exist
3561          * or note, while on notebooks, they returns 0xFFFFFFFE on failure,
3562          * but once again, SPEC may probably be used for that kind of things.
3563          *
3564          * Additionally at least TUF Gaming series laptops return nothing for
3565          * unknown methods, so the detection in this way is not possible.
3566          *
3567          * There is strong indication that only ACPI WMI devices that have _UID
3568          * equal to "ASUSWMI" use DCTS whereas those with "ATK" use DSTS.
3569          */
3570         wmi_uid = wmi_get_acpi_device_uid(ASUS_WMI_MGMT_GUID);
3571         if (!wmi_uid)
3572                 return -ENODEV;
3573
3574         if (!strcmp(wmi_uid, ASUS_ACPI_UID_ASUSWMI)) {
3575                 dev_info(dev, "Detected ASUSWMI, use DCTS\n");
3576                 asus->dsts_id = ASUS_WMI_METHODID_DCTS;
3577         } else {
3578                 dev_info(dev, "Detected %s, not ASUSWMI, use DSTS\n", wmi_uid);
3579                 asus->dsts_id = ASUS_WMI_METHODID_DSTS;
3580         }
3581
3582         /*
3583          * Some devices can have multiple event codes stored in a queue before
3584          * the module load if it was unloaded intermittently after calling
3585          * the INIT method (enables event handling). The WMI notify handler is
3586          * expected to retrieve all event codes until a retrieved code equals
3587          * queue end marker (One or Ones). Old codes are flushed from the queue
3588          * upon module load. Not enabling this when it should be has minimal
3589          * visible impact so fall back if anything goes wrong.
3590          */
3591         wmi_uid = wmi_get_acpi_device_uid(asus->driver->event_guid);
3592         if (wmi_uid && !strcmp(wmi_uid, ASUS_ACPI_UID_ATK)) {
3593                 dev_info(dev, "Detected ATK, enable event queue\n");
3594
3595                 if (!asus_wmi_notify_queue_flush(asus))
3596                         asus->wmi_event_queue = true;
3597         }
3598
3599         /* CWAP allow to define the behavior of the Fn+F2 key,
3600          * this method doesn't seems to be present on Eee PCs */
3601         if (asus->driver->quirks->wapf >= 0)
3602                 asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP,
3603                                       asus->driver->quirks->wapf, NULL);
3604
3605         return 0;
3606 }
3607
3608 /* debugfs ********************************************************************/
3609
3610 struct asus_wmi_debugfs_node {
3611         struct asus_wmi *asus;
3612         char *name;
3613         int (*show) (struct seq_file *m, void *data);
3614 };
3615
3616 static int show_dsts(struct seq_file *m, void *data)
3617 {
3618         struct asus_wmi *asus = m->private;
3619         int err;
3620         u32 retval = -1;
3621
3622         err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
3623         if (err < 0)
3624                 return err;
3625
3626         seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval);
3627
3628         return 0;
3629 }
3630
3631 static int show_devs(struct seq_file *m, void *data)
3632 {
3633         struct asus_wmi *asus = m->private;
3634         int err;
3635         u32 retval = -1;
3636
3637         err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
3638                                     &retval);
3639         if (err < 0)
3640                 return err;
3641
3642         seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id,
3643                    asus->debug.ctrl_param, retval);
3644
3645         return 0;
3646 }
3647
3648 static int show_call(struct seq_file *m, void *data)
3649 {
3650         struct asus_wmi *asus = m->private;
3651         struct bios_args args = {
3652                 .arg0 = asus->debug.dev_id,
3653                 .arg1 = asus->debug.ctrl_param,
3654         };
3655         struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
3656         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
3657         union acpi_object *obj;
3658         acpi_status status;
3659
3660         status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
3661                                      0, asus->debug.method_id,
3662                                      &input, &output);
3663
3664         if (ACPI_FAILURE(status))
3665                 return -EIO;
3666
3667         obj = (union acpi_object *)output.pointer;
3668         if (obj && obj->type == ACPI_TYPE_INTEGER)
3669                 seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id,
3670                            asus->debug.dev_id, asus->debug.ctrl_param,
3671                            (u32) obj->integer.value);
3672         else
3673                 seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id,
3674                            asus->debug.dev_id, asus->debug.ctrl_param,
3675                            obj ? obj->type : -1);
3676
3677         kfree(obj);
3678
3679         return 0;
3680 }
3681
3682 static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = {
3683         {NULL, "devs", show_devs},
3684         {NULL, "dsts", show_dsts},
3685         {NULL, "call", show_call},
3686 };
3687
3688 static int asus_wmi_debugfs_open(struct inode *inode, struct file *file)
3689 {
3690         struct asus_wmi_debugfs_node *node = inode->i_private;
3691
3692         return single_open(file, node->show, node->asus);
3693 }
3694
3695 static const struct file_operations asus_wmi_debugfs_io_ops = {
3696         .owner = THIS_MODULE,
3697         .open = asus_wmi_debugfs_open,
3698         .read = seq_read,
3699         .llseek = seq_lseek,
3700         .release = single_release,
3701 };
3702
3703 static void asus_wmi_debugfs_exit(struct asus_wmi *asus)
3704 {
3705         debugfs_remove_recursive(asus->debug.root);
3706 }
3707
3708 static void asus_wmi_debugfs_init(struct asus_wmi *asus)
3709 {
3710         int i;
3711
3712         asus->debug.root = debugfs_create_dir(asus->driver->name, NULL);
3713
3714         debugfs_create_x32("method_id", S_IRUGO | S_IWUSR, asus->debug.root,
3715                            &asus->debug.method_id);
3716
3717         debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR, asus->debug.root,
3718                            &asus->debug.dev_id);
3719
3720         debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR, asus->debug.root,
3721                            &asus->debug.ctrl_param);
3722
3723         for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) {
3724                 struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i];
3725
3726                 node->asus = asus;
3727                 debugfs_create_file(node->name, S_IFREG | S_IRUGO,
3728                                     asus->debug.root, node,
3729                                     &asus_wmi_debugfs_io_ops);
3730         }
3731 }
3732
3733 /* Init / exit ****************************************************************/
3734
3735 static int asus_wmi_add(struct platform_device *pdev)
3736 {
3737         struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
3738         struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
3739         struct asus_wmi *asus;
3740         acpi_status status;
3741         int err;
3742         u32 result;
3743
3744         asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL);
3745         if (!asus)
3746                 return -ENOMEM;
3747
3748         asus->driver = wdrv;
3749         asus->platform_device = pdev;
3750         wdrv->platform_device = pdev;
3751         platform_set_drvdata(asus->platform_device, asus);
3752
3753         if (wdrv->detect_quirks)
3754                 wdrv->detect_quirks(asus->driver);
3755
3756         err = asus_wmi_platform_init(asus);
3757         if (err)
3758                 goto fail_platform;
3759
3760         asus->egpu_enable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU);
3761         asus->dgpu_disable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_DGPU);
3762         asus->gpu_mux_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX);
3763         asus->kbd_rgb_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE);
3764         asus->kbd_rgb_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_STATE);
3765         asus->panel_overdrive_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PANEL_OD);
3766
3767         err = fan_boost_mode_check_present(asus);
3768         if (err)
3769                 goto fail_fan_boost_mode;
3770
3771         err = throttle_thermal_policy_check_present(asus);
3772         if (err)
3773                 goto fail_throttle_thermal_policy;
3774         else
3775                 throttle_thermal_policy_set_default(asus);
3776
3777         err = platform_profile_setup(asus);
3778         if (err)
3779                 goto fail_platform_profile_setup;
3780
3781         err = asus_wmi_sysfs_init(asus->platform_device);
3782         if (err)
3783                 goto fail_sysfs;
3784
3785         err = asus_wmi_input_init(asus);
3786         if (err)
3787                 goto fail_input;
3788
3789         err = asus_wmi_fan_init(asus); /* probably no problems on error */
3790
3791         err = asus_wmi_hwmon_init(asus);
3792         if (err)
3793                 goto fail_hwmon;
3794
3795         err = asus_wmi_custom_fan_curve_init(asus);
3796         if (err)
3797                 goto fail_custom_fan_curve;
3798
3799         err = asus_wmi_led_init(asus);
3800         if (err)
3801                 goto fail_leds;
3802
3803         asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result);
3804         if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT))
3805                 asus->driver->wlan_ctrl_by_user = 1;
3806
3807         if (!(asus->driver->wlan_ctrl_by_user && ashs_present())) {
3808                 err = asus_wmi_rfkill_init(asus);
3809                 if (err)
3810                         goto fail_rfkill;
3811         }
3812
3813         if (asus->driver->quirks->wmi_force_als_set)
3814                 asus_wmi_set_als();
3815
3816         if (asus->driver->quirks->xusb2pr)
3817                 asus_wmi_set_xusb2pr(asus);
3818
3819         if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
3820                 err = asus_wmi_backlight_init(asus);
3821                 if (err && err != -ENODEV)
3822                         goto fail_backlight;
3823         } else if (asus->driver->quirks->wmi_backlight_set_devstate)
3824                 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL);
3825
3826         if (asus_wmi_has_fnlock_key(asus)) {
3827                 asus->fnlock_locked = fnlock_default;
3828                 asus_wmi_fnlock_update(asus);
3829         }
3830
3831         status = wmi_install_notify_handler(asus->driver->event_guid,
3832                                             asus_wmi_notify, asus);
3833         if (ACPI_FAILURE(status)) {
3834                 pr_err("Unable to register notify handler - %d\n", status);
3835                 err = -ENODEV;
3836                 goto fail_wmi_handler;
3837         }
3838
3839         asus_wmi_battery_init(asus);
3840
3841         asus_wmi_debugfs_init(asus);
3842
3843         return 0;
3844
3845 fail_wmi_handler:
3846         asus_wmi_backlight_exit(asus);
3847 fail_backlight:
3848         asus_wmi_rfkill_exit(asus);
3849 fail_rfkill:
3850         asus_wmi_led_exit(asus);
3851 fail_leds:
3852 fail_hwmon:
3853         asus_wmi_input_exit(asus);
3854 fail_input:
3855         asus_wmi_sysfs_exit(asus->platform_device);
3856 fail_sysfs:
3857 fail_throttle_thermal_policy:
3858 fail_custom_fan_curve:
3859 fail_platform_profile_setup:
3860         if (asus->platform_profile_support)
3861                 platform_profile_remove();
3862 fail_fan_boost_mode:
3863 fail_platform:
3864         kfree(asus);
3865         return err;
3866 }
3867
3868 static int asus_wmi_remove(struct platform_device *device)
3869 {
3870         struct asus_wmi *asus;
3871
3872         asus = platform_get_drvdata(device);
3873         wmi_remove_notify_handler(asus->driver->event_guid);
3874         asus_wmi_backlight_exit(asus);
3875         asus_wmi_input_exit(asus);
3876         asus_wmi_led_exit(asus);
3877         asus_wmi_rfkill_exit(asus);
3878         asus_wmi_debugfs_exit(asus);
3879         asus_wmi_sysfs_exit(asus->platform_device);
3880         asus_fan_set_auto(asus);
3881         throttle_thermal_policy_set_default(asus);
3882         asus_wmi_battery_exit(asus);
3883
3884         if (asus->platform_profile_support)
3885                 platform_profile_remove();
3886
3887         kfree(asus);
3888         return 0;
3889 }
3890
3891 /* Platform driver - hibernate/resume callbacks *******************************/
3892
3893 static int asus_hotk_thaw(struct device *device)
3894 {
3895         struct asus_wmi *asus = dev_get_drvdata(device);
3896
3897         if (asus->wlan.rfkill) {
3898                 bool wlan;
3899
3900                 /*
3901                  * Work around bios bug - acpi _PTS turns off the wireless led
3902                  * during suspend.  Normally it restores it on resume, but
3903                  * we should kick it ourselves in case hibernation is aborted.
3904                  */
3905                 wlan = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
3906                 asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL);
3907         }
3908
3909         return 0;
3910 }
3911
3912 static int asus_hotk_resume(struct device *device)
3913 {
3914         struct asus_wmi *asus = dev_get_drvdata(device);
3915
3916         if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
3917                 kbd_led_update(asus);
3918
3919         if (asus_wmi_has_fnlock_key(asus))
3920                 asus_wmi_fnlock_update(asus);
3921
3922         asus_wmi_tablet_mode_get_state(asus);
3923         return 0;
3924 }
3925
3926 static int asus_hotk_restore(struct device *device)
3927 {
3928         struct asus_wmi *asus = dev_get_drvdata(device);
3929         int bl;
3930
3931         /* Refresh both wlan rfkill state and pci hotplug */
3932         if (asus->wlan.rfkill)
3933                 asus_rfkill_hotplug(asus);
3934
3935         if (asus->bluetooth.rfkill) {
3936                 bl = !asus_wmi_get_devstate_simple(asus,
3937                                                    ASUS_WMI_DEVID_BLUETOOTH);
3938                 rfkill_set_sw_state(asus->bluetooth.rfkill, bl);
3939         }
3940         if (asus->wimax.rfkill) {
3941                 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WIMAX);
3942                 rfkill_set_sw_state(asus->wimax.rfkill, bl);
3943         }
3944         if (asus->wwan3g.rfkill) {
3945                 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WWAN3G);
3946                 rfkill_set_sw_state(asus->wwan3g.rfkill, bl);
3947         }
3948         if (asus->gps.rfkill) {
3949                 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPS);
3950                 rfkill_set_sw_state(asus->gps.rfkill, bl);
3951         }
3952         if (asus->uwb.rfkill) {
3953                 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_UWB);
3954                 rfkill_set_sw_state(asus->uwb.rfkill, bl);
3955         }
3956         if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
3957                 kbd_led_update(asus);
3958
3959         if (asus_wmi_has_fnlock_key(asus))
3960                 asus_wmi_fnlock_update(asus);
3961
3962         asus_wmi_tablet_mode_get_state(asus);
3963         return 0;
3964 }
3965
3966 static const struct dev_pm_ops asus_pm_ops = {
3967         .thaw = asus_hotk_thaw,
3968         .restore = asus_hotk_restore,
3969         .resume = asus_hotk_resume,
3970 };
3971
3972 /* Registration ***************************************************************/
3973
3974 static int asus_wmi_probe(struct platform_device *pdev)
3975 {
3976         struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
3977         struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
3978         int ret;
3979
3980         if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
3981                 pr_warn("ASUS Management GUID not found\n");
3982                 return -ENODEV;
3983         }
3984
3985         if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) {
3986                 pr_warn("ASUS Event GUID not found\n");
3987                 return -ENODEV;
3988         }
3989
3990         if (wdrv->probe) {
3991                 ret = wdrv->probe(pdev);
3992                 if (ret)
3993                         return ret;
3994         }
3995
3996         return asus_wmi_add(pdev);
3997 }
3998
3999 static bool used;
4000
4001 int __init_or_module asus_wmi_register_driver(struct asus_wmi_driver *driver)
4002 {
4003         struct platform_driver *platform_driver;
4004         struct platform_device *platform_device;
4005
4006         if (used)
4007                 return -EBUSY;
4008
4009         platform_driver = &driver->platform_driver;
4010         platform_driver->remove = asus_wmi_remove;
4011         platform_driver->driver.owner = driver->owner;
4012         platform_driver->driver.name = driver->name;
4013         platform_driver->driver.pm = &asus_pm_ops;
4014
4015         platform_device = platform_create_bundle(platform_driver,
4016                                                  asus_wmi_probe,
4017                                                  NULL, 0, NULL, 0);
4018         if (IS_ERR(platform_device))
4019                 return PTR_ERR(platform_device);
4020
4021         used = true;
4022         return 0;
4023 }
4024 EXPORT_SYMBOL_GPL(asus_wmi_register_driver);
4025
4026 void asus_wmi_unregister_driver(struct asus_wmi_driver *driver)
4027 {
4028         platform_device_unregister(driver->platform_device);
4029         platform_driver_unregister(&driver->platform_driver);
4030         used = false;
4031 }
4032 EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver);
4033
4034 static int __init asus_wmi_init(void)
4035 {
4036         pr_info("ASUS WMI generic driver loaded\n");
4037         return 0;
4038 }
4039
4040 static void __exit asus_wmi_exit(void)
4041 {
4042         pr_info("ASUS WMI generic driver unloaded\n");
4043 }
4044
4045 module_init(asus_wmi_init);
4046 module_exit(asus_wmi_exit);