drivers/platform/x86/acer-wmi.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  Acer WMI Laptop Extras
   4  *
   5  *  Copyright (C) 2007-2009     Carlos Corbacho <[email protected]>
   6  *
   7  *  Based on acer_acpi:
   8  *    Copyright (C) 2005-2007   E.M. Smith
   9  *    Copyright (C) 2007-2008   Carlos Corbacho <[email protected]>
  10  */
  11
  12 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  13
  14 #include <linux/kernel.h>
  15 #include <linux/module.h>
  16 #include <linux/init.h>
  17 #include <linux/types.h>
  18 #include <linux/dmi.h>
  19 #include <linux/fb.h>
  20 #include <linux/backlight.h>
  21 #include <linux/leds.h>
  22 #include <linux/platform_device.h>
  23 #include <linux/acpi.h>
  24 #include <linux/i8042.h>
  25 #include <linux/rfkill.h>
  26 #include <linux/workqueue.h>
  27 #include <linux/debugfs.h>
  28 #include <linux/slab.h>
  29 #include <linux/input.h>
  30 #include <linux/input/sparse-keymap.h>
  31 #include <acpi/video.h>
  32
  33 MODULE_AUTHOR("Carlos Corbacho");
  34 MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
  35 MODULE_LICENSE("GPL");
  36
  37 /*
  38  * Magic Number
  39  * Meaning is unknown - this number is required for writing to ACPI for AMW0
  40  * (it's also used in acerhk when directly accessing the BIOS)
  41  */
  42 #define ACER_AMW0_WRITE 0x9610
  43
  44 /*
  45  * Bit masks for the AMW0 interface
  46  */
  47 #define ACER_AMW0_WIRELESS_MASK  0x35
  48 #define ACER_AMW0_BLUETOOTH_MASK 0x34
  49 #define ACER_AMW0_MAILLED_MASK   0x31
  50
  51 /*
  52  * Method IDs for WMID interface
  53  */
  54 #define ACER_WMID_GET_WIRELESS_METHODID         1
  55 #define ACER_WMID_GET_BLUETOOTH_METHODID        2
  56 #define ACER_WMID_GET_BRIGHTNESS_METHODID       3
  57 #define ACER_WMID_SET_WIRELESS_METHODID         4
  58 #define ACER_WMID_SET_BLUETOOTH_METHODID        5
  59 #define ACER_WMID_SET_BRIGHTNESS_METHODID       6
  60 #define ACER_WMID_GET_THREEG_METHODID           10
  61 #define ACER_WMID_SET_THREEG_METHODID           11
  62
  63 #define ACER_WMID_SET_GAMING_LED_METHODID 2
  64 #define ACER_WMID_GET_GAMING_LED_METHODID 4
  65 #define ACER_WMID_SET_GAMING_FAN_BEHAVIOR 14
  66 #define ACER_WMID_SET_GAMING_MISC_SETTING_METHODID 22
  67
  68 /*
  69  * Acer ACPI method GUIDs
  70  */
  71 #define AMW0_GUID1              "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
  72 #define AMW0_GUID2              "431F16ED-0C2B-444C-B267-27DEB140CF9C"
  73 #define WMID_GUID1              "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"
  74 #define WMID_GUID2              "95764E09-FB56-4E83-B31A-37761F60994A"
  75 #define WMID_GUID3              "61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
  76 #define WMID_GUID4              "7A4DDFE7-5B5D-40B4-8595-4408E0CC7F56"
  77
  78 /*
  79  * Acer ACPI event GUIDs
  80  */
  81 #define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
  82
  83 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
  84 MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
  85 MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
  86
  87 enum acer_wmi_event_ids {
  88         WMID_HOTKEY_EVENT = 0x1,
  89         WMID_ACCEL_OR_KBD_DOCK_EVENT = 0x5,
  90         WMID_GAMING_TURBO_KEY_EVENT = 0x7,
  91 };
  92
  93 static const struct key_entry acer_wmi_keymap[] __initconst = {
  94         {KE_KEY, 0x01, {KEY_WLAN} },     /* WiFi */
  95         {KE_KEY, 0x03, {KEY_WLAN} },     /* WiFi */
  96         {KE_KEY, 0x04, {KEY_WLAN} },     /* WiFi */
  97         {KE_KEY, 0x12, {KEY_BLUETOOTH} },       /* BT */
  98         {KE_KEY, 0x21, {KEY_PROG1} },    /* Backup */
  99         {KE_KEY, 0x22, {KEY_PROG2} },    /* Arcade */
 100         {KE_KEY, 0x23, {KEY_PROG3} },    /* P_Key */
 101         {KE_KEY, 0x24, {KEY_PROG4} },    /* Social networking_Key */
 102         {KE_KEY, 0x27, {KEY_HELP} },
 103         {KE_KEY, 0x29, {KEY_PROG3} },    /* P_Key for TM8372 */
 104         {KE_IGNORE, 0x41, {KEY_MUTE} },
 105         {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
 106         {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} },
 107         {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
 108         {KE_IGNORE, 0x4e, {KEY_NEXTSONG} },
 109         {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
 110         {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} },
 111         {KE_IGNORE, 0x45, {KEY_STOP} },
 112         {KE_IGNORE, 0x50, {KEY_STOP} },
 113         {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
 114         {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
 115         {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
 116         /*
 117          * 0x61 is KEY_SWITCHVIDEOMODE. Usually this is a duplicate input event
 118          * with the "Video Bus" input device events. But sometimes it is not
 119          * a dup. Map it to KEY_UNKNOWN instead of using KE_IGNORE so that
 120          * udev/hwdb can override it on systems where it is not a dup.
 121          */
 122         {KE_KEY, 0x61, {KEY_UNKNOWN} },
 123         {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
 124         {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
 125         {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
 126         {KE_IGNORE, 0x81, {KEY_SLEEP} },
 127         {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
 128         {KE_IGNORE, 0x84, {KEY_KBDILLUMTOGGLE} }, /* Automatic Keyboard background light toggle */
 129         {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
 130         {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
 131         {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
 132         {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} },
 133         {KE_KEY, 0x86, {KEY_WLAN} },
 134         {KE_KEY, 0x87, {KEY_POWER} },
 135         {KE_END, 0}
 136 };
 137
 138 static struct input_dev *acer_wmi_input_dev;
 139 static struct input_dev *acer_wmi_accel_dev;
 140
 141 struct event_return_value {
 142         u8 function;
 143         u8 key_num;
 144         u16 device_state;
 145         u16 reserved1;
 146         u8 kbd_dock_state;
 147         u8 reserved2;
 148 } __packed;
 149
 150 /*
 151  * GUID3 Get Device Status device flags
 152  */
 153 #define ACER_WMID3_GDS_WIRELESS         (1<<0)  /* WiFi */
 154 #define ACER_WMID3_GDS_THREEG           (1<<6)  /* 3G */
 155 #define ACER_WMID3_GDS_WIMAX            (1<<7)  /* WiMAX */
 156 #define ACER_WMID3_GDS_BLUETOOTH        (1<<11) /* BT */
 157 #define ACER_WMID3_GDS_RFBTN            (1<<14) /* RF Button */
 158
 159 #define ACER_WMID3_GDS_TOUCHPAD         (1<<1)  /* Touchpad */
 160
 161 /* Hotkey Customized Setting and Acer Application Status.
 162  * Set Device Default Value and Report Acer Application Status.
 163  * When Acer Application starts, it will run this method to inform
 164  * BIOS/EC that Acer Application is on.
 165  * App Status
 166  *      Bit[0]: Launch Manager Status
 167  *      Bit[1]: ePM Status
 168  *      Bit[2]: Device Control Status
 169  *      Bit[3]: Acer Power Button Utility Status
 170  *      Bit[4]: RF Button Status
 171  *      Bit[5]: ODD PM Status
 172  *      Bit[6]: Device Default Value Control
 173  *      Bit[7]: Hall Sensor Application Status
 174  */
 175 struct func_input_params {
 176         u8 function_num;        /* Function Number */
 177         u16 commun_devices;     /* Communication type devices default status */
 178         u16 devices;            /* Other type devices default status */
 179         u8 app_status;          /* Acer Device Status. LM, ePM, RF Button... */
 180         u8 app_mask;            /* Bit mask to app_status */
 181         u8 reserved;
 182 } __packed;
 183
 184 struct func_return_value {
 185         u8 error_code;          /* Error Code */
 186         u8 ec_return_value;     /* EC Return Value */
 187         u16 reserved;
 188 } __packed;
 189
 190 struct wmid3_gds_set_input_param {     /* Set Device Status input parameter */
 191         u8 function_num;        /* Function Number */
 192         u8 hotkey_number;       /* Hotkey Number */
 193         u16 devices;            /* Set Device */
 194         u8 volume_value;        /* Volume Value */
 195 } __packed;
 196
 197 struct wmid3_gds_get_input_param {     /* Get Device Status input parameter */
 198         u8 function_num;        /* Function Number */
 199         u8 hotkey_number;       /* Hotkey Number */
 200         u16 devices;            /* Get Device */
 201 } __packed;
 202
 203 struct wmid3_gds_return_value { /* Get Device Status return value*/
 204         u8 error_code;          /* Error Code */
 205         u8 ec_return_value;     /* EC Return Value */
 206         u16 devices;            /* Current Device Status */
 207         u32 reserved;
 208 } __packed;
 209
 210 struct hotkey_function_type_aa {
 211         u8 type;
 212         u8 length;
 213         u16 handle;
 214         u16 commun_func_bitmap;
 215         u16 application_func_bitmap;
 216         u16 media_func_bitmap;
 217         u16 display_func_bitmap;
 218         u16 others_func_bitmap;
 219         u8 commun_fn_key_number;
 220 } __packed;
 221
 222 /*
 223  * Interface capability flags
 224  */
 225 #define ACER_CAP_MAILLED                BIT(0)
 226 #define ACER_CAP_WIRELESS               BIT(1)
 227 #define ACER_CAP_BLUETOOTH              BIT(2)
 228 #define ACER_CAP_BRIGHTNESS             BIT(3)
 229 #define ACER_CAP_THREEG                 BIT(4)
 230 #define ACER_CAP_SET_FUNCTION_MODE      BIT(5)
 231 #define ACER_CAP_KBD_DOCK               BIT(6)
 232 #define ACER_CAP_TURBO_OC     BIT(7)
 233 #define ACER_CAP_TURBO_LED     BIT(8)
 234 #define ACER_CAP_TURBO_FAN     BIT(9)
 235
 236 /*
 237  * Interface type flags
 238  */
 239 enum interface_flags {
 240         ACER_AMW0,
 241         ACER_AMW0_V2,
 242         ACER_WMID,
 243         ACER_WMID_v2,
 244 };
 245
 246 #define ACER_DEFAULT_WIRELESS  0
 247 #define ACER_DEFAULT_BLUETOOTH 0
 248 #define ACER_DEFAULT_MAILLED   0
 249 #define ACER_DEFAULT_THREEG    0
 250
 251 static int max_brightness = 0xF;
 252
 253 static int mailled = -1;
 254 static int brightness = -1;
 255 static int threeg = -1;
 256 static int force_series;
 257 static int force_caps = -1;
 258 static bool ec_raw_mode;
 259 static bool has_type_aa;
 260 static u16 commun_func_bitmap;
 261 static u8 commun_fn_key_number;
 262
 263 module_param(mailled, int, 0444);
 264 module_param(brightness, int, 0444);
 265 module_param(threeg, int, 0444);
 266 module_param(force_series, int, 0444);
 267 module_param(force_caps, int, 0444);
 268 module_param(ec_raw_mode, bool, 0444);
 269 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
 270 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
 271 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
 272 MODULE_PARM_DESC(force_series, "Force a different laptop series");
 273 MODULE_PARM_DESC(force_caps, "Force the capability bitmask to this value");
 274 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
 275
 276 struct acer_data {
 277         int mailled;
 278         int threeg;
 279         int brightness;
 280 };
 281
 282 struct acer_debug {
 283         struct dentry *root;
 284         u32 wmid_devices;
 285 };
 286
 287 static struct rfkill *wireless_rfkill;
 288 static struct rfkill *bluetooth_rfkill;
 289 static struct rfkill *threeg_rfkill;
 290 static bool rfkill_inited;
 291
 292 /* Each low-level interface must define at least some of the following */
 293 struct wmi_interface {
 294         /* The WMI device type */
 295         u32 type;
 296
 297         /* The capabilities this interface provides */
 298         u32 capability;
 299
 300         /* Private data for the current interface */
 301         struct acer_data data;
 302
 303         /* debugfs entries associated with this interface */
 304         struct acer_debug debug;
 305 };
 306
 307 /* The static interface pointer, points to the currently detected interface */
 308 static struct wmi_interface *interface;
 309
 310 /*
 311  * Embedded Controller quirks
 312  * Some laptops require us to directly access the EC to either enable or query
 313  * features that are not available through WMI.
 314  */
 315
 316 struct quirk_entry {
 317         u8 wireless;
 318         u8 mailled;
 319         s8 brightness;
 320         u8 bluetooth;
 321         u8 turbo;
 322         u8 cpu_fans;
 323         u8 gpu_fans;
 324 };
 325
 326 static struct quirk_entry *quirks;
 327
 328 static void __init set_quirks(void)
 329 {
 330         if (quirks->mailled)
 331                 interface->capability |= ACER_CAP_MAILLED;
 332
 333         if (quirks->brightness)
 334                 interface->capability |= ACER_CAP_BRIGHTNESS;
 335
 336         if (quirks->turbo)
 337                 interface->capability |= ACER_CAP_TURBO_OC | ACER_CAP_TURBO_LED
 338                                          | ACER_CAP_TURBO_FAN;
 339 }
 340
 341 static int __init dmi_matched(const struct dmi_system_id *dmi)
 342 {
 343         quirks = dmi->driver_data;
 344         return 1;
 345 }
 346
 347 static int __init set_force_caps(const struct dmi_system_id *dmi)
 348 {
 349         if (force_caps == -1) {
 350                 force_caps = (uintptr_t)dmi->driver_data;
 351                 pr_info("Found %s, set force_caps to 0x%x\n", dmi->ident, force_caps);
 352         }
 353         return 1;
 354 }
 355
 356 static struct quirk_entry quirk_unknown = {
 357 };
 358
 359 static struct quirk_entry quirk_acer_aspire_1520 = {
 360         .brightness = -1,
 361 };
 362
 363 static struct quirk_entry quirk_acer_travelmate_2490 = {
 364         .mailled = 1,
 365 };
 366
 367 static struct quirk_entry quirk_acer_predator_ph315_53 = {
 368         .turbo = 1,
 369         .cpu_fans = 1,
 370         .gpu_fans = 1,
 371 };
 372
 373 /* This AMW0 laptop has no bluetooth */
 374 static struct quirk_entry quirk_medion_md_98300 = {
 375         .wireless = 1,
 376 };
 377
 378 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
 379         .wireless = 2,
 380 };
 381
 382 static struct quirk_entry quirk_lenovo_ideapad_s205 = {
 383         .wireless = 3,
 384 };
 385
 386 /* The Aspire One has a dummy ACPI-WMI interface - disable it */
 387 static const struct dmi_system_id acer_blacklist[] __initconst = {
 388         {
 389                 .ident = "Acer Aspire One (SSD)",
 390                 .matches = {
 391                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 392                         DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
 393                 },
 394         },
 395         {
 396                 .ident = "Acer Aspire One (HDD)",
 397                 .matches = {
 398                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 399                         DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
 400                 },
 401         },
 402         {}
 403 };
 404
 405 static const struct dmi_system_id amw0_whitelist[] __initconst = {
 406         {
 407                 .ident = "Acer",
 408                 .matches = {
 409                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 410                 },
 411         },
 412         {
 413                 .ident = "Gateway",
 414                 .matches = {
 415                         DMI_MATCH(DMI_SYS_VENDOR, "Gateway"),
 416                 },
 417         },
 418         {
 419                 .ident = "Packard Bell",
 420                 .matches = {
 421                         DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"),
 422                 },
 423         },
 424         {}
 425 };
 426
 427 /*
 428  * This quirk table is only for Acer/Gateway/Packard Bell family
 429  * that those machines are supported by acer-wmi driver.
 430  */
 431 static const struct dmi_system_id acer_quirks[] __initconst = {
 432         {
 433                 .callback = dmi_matched,
 434                 .ident = "Acer Aspire 1360",
 435                 .matches = {
 436                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 437                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
 438                 },
 439                 .driver_data = &quirk_acer_aspire_1520,
 440         },
 441         {
 442                 .callback = dmi_matched,
 443                 .ident = "Acer Aspire 1520",
 444                 .matches = {
 445                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 446                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
 447                 },
 448                 .driver_data = &quirk_acer_aspire_1520,
 449         },
 450         {
 451                 .callback = dmi_matched,
 452                 .ident = "Acer Aspire 3100",
 453                 .matches = {
 454                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 455                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
 456                 },
 457                 .driver_data = &quirk_acer_travelmate_2490,
 458         },
 459         {
 460                 .callback = dmi_matched,
 461                 .ident = "Acer Aspire 3610",
 462                 .matches = {
 463                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 464                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
 465                 },
 466                 .driver_data = &quirk_acer_travelmate_2490,
 467         },
 468         {
 469                 .callback = dmi_matched,
 470                 .ident = "Acer Aspire 5100",
 471                 .matches = {
 472                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 473                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
 474                 },
 475                 .driver_data = &quirk_acer_travelmate_2490,
 476         },
 477         {
 478                 .callback = dmi_matched,
 479                 .ident = "Acer Aspire 5610",
 480                 .matches = {
 481                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 482                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
 483                 },
 484                 .driver_data = &quirk_acer_travelmate_2490,
 485         },
 486         {
 487                 .callback = dmi_matched,
 488                 .ident = "Acer Aspire 5630",
 489                 .matches = {
 490                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 491                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
 492                 },
 493                 .driver_data = &quirk_acer_travelmate_2490,
 494         },
 495         {
 496                 .callback = dmi_matched,
 497                 .ident = "Acer Aspire 5650",
 498                 .matches = {
 499                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 500                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
 501                 },
 502                 .driver_data = &quirk_acer_travelmate_2490,
 503         },
 504         {
 505                 .callback = dmi_matched,
 506                 .ident = "Acer Aspire 5680",
 507                 .matches = {
 508                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 509                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
 510                 },
 511                 .driver_data = &quirk_acer_travelmate_2490,
 512         },
 513         {
 514                 .callback = dmi_matched,
 515                 .ident = "Acer Aspire 9110",
 516                 .matches = {
 517                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 518                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
 519                 },
 520                 .driver_data = &quirk_acer_travelmate_2490,
 521         },
 522         {
 523                 .callback = dmi_matched,
 524                 .ident = "Acer TravelMate 2490",
 525                 .matches = {
 526                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 527                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
 528                 },
 529                 .driver_data = &quirk_acer_travelmate_2490,
 530         },
 531         {
 532                 .callback = dmi_matched,
 533                 .ident = "Acer TravelMate 4200",
 534                 .matches = {
 535                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 536                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
 537                 },
 538                 .driver_data = &quirk_acer_travelmate_2490,
 539         },
 540         {
 541                 .callback = dmi_matched,
 542                 .ident = "Acer Predator PH315-53",
 543                 .matches = {
 544                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 545                         DMI_MATCH(DMI_PRODUCT_NAME, "Predator PH315-53"),
 546                 },
 547                 .driver_data = &quirk_acer_predator_ph315_53,
 548         },
 549         {
 550                 .callback = set_force_caps,
 551                 .ident = "Acer Aspire Switch 10E SW3-016",
 552                 .matches = {
 553                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 554                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW3-016"),
 555                 },
 556                 .driver_data = (void *)ACER_CAP_KBD_DOCK,
 557         },
 558         {
 559                 .callback = set_force_caps,
 560                 .ident = "Acer Aspire Switch 10 SW5-012",
 561                 .matches = {
 562                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 563                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
 564                 },
 565                 .driver_data = (void *)ACER_CAP_KBD_DOCK,
 566         },
 567         {
 568                 .callback = set_force_caps,
 569                 .ident = "Acer Aspire Switch V 10 SW5-017",
 570                 .matches = {
 571                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
 572                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SW5-017"),
 573                 },
 574                 .driver_data = (void *)ACER_CAP_KBD_DOCK,
 575         },
 576         {
 577                 .callback = set_force_caps,
 578                 .ident = "Acer One 10 (S1003)",
 579                 .matches = {
 580                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
 581                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
 582                 },
 583                 .driver_data = (void *)ACER_CAP_KBD_DOCK,
 584         },
 585         {}
 586 };
 587
 588 /*
 589  * This quirk list is for those non-acer machines that have AMW0_GUID1
 590  * but supported by acer-wmi in past days. Keeping this quirk list here
 591  * is only for backward compatible. Please do not add new machine to
 592  * here anymore. Those non-acer machines should be supported by
 593  * appropriate wmi drivers.
 594  */
 595 static const struct dmi_system_id non_acer_quirks[] __initconst = {
 596         {
 597                 .callback = dmi_matched,
 598                 .ident = "Fujitsu Siemens Amilo Li 1718",
 599                 .matches = {
 600                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 601                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
 602                 },
 603                 .driver_data = &quirk_fujitsu_amilo_li_1718,
 604         },
 605         {
 606                 .callback = dmi_matched,
 607                 .ident = "Medion MD 98300",
 608                 .matches = {
 609                         DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
 610                         DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
 611                 },
 612                 .driver_data = &quirk_medion_md_98300,
 613         },
 614         {
 615                 .callback = dmi_matched,
 616                 .ident = "Lenovo Ideapad S205",
 617                 .matches = {
 618                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 619                         DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
 620                 },
 621                 .driver_data = &quirk_lenovo_ideapad_s205,
 622         },
 623         {
 624                 .callback = dmi_matched,
 625                 .ident = "Lenovo Ideapad S205 (Brazos)",
 626                 .matches = {
 627                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 628                         DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
 629                 },
 630                 .driver_data = &quirk_lenovo_ideapad_s205,
 631         },
 632         {
 633                 .callback = dmi_matched,
 634                 .ident = "Lenovo 3000 N200",
 635                 .matches = {
 636                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 637                         DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
 638                 },
 639                 .driver_data = &quirk_fujitsu_amilo_li_1718,
 640         },
 641         {
 642                 .callback = dmi_matched,
 643                 .ident = "Lenovo Ideapad S205-10382JG",
 644                 .matches = {
 645                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 646                         DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
 647                 },
 648                 .driver_data = &quirk_lenovo_ideapad_s205,
 649         },
 650         {
 651                 .callback = dmi_matched,
 652                 .ident = "Lenovo Ideapad S205-1038DPG",
 653                 .matches = {
 654                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 655                         DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
 656                 },
 657                 .driver_data = &quirk_lenovo_ideapad_s205,
 658         },
 659         {}
 660 };
 661
 662 /* Find which quirks are needed for a particular vendor/ model pair */
 663 static void __init find_quirks(void)
 664 {
 665         if (!force_series) {
 666                 dmi_check_system(acer_quirks);
 667                 dmi_check_system(non_acer_quirks);
 668         } else if (force_series == 2490) {
 669                 quirks = &quirk_acer_travelmate_2490;
 670         }
 671
 672         if (quirks == NULL)
 673                 quirks = &quirk_unknown;
 674 }
 675
 676 /*
 677  * General interface convenience methods
 678  */
 679
 680 static bool has_cap(u32 cap)
 681 {
 682         return interface->capability & cap;
 683 }
 684
 685 /*
 686  * AMW0 (V1) interface
 687  */
 688 struct wmab_args {
 689         u32 eax;
 690         u32 ebx;
 691         u32 ecx;
 692         u32 edx;
 693 };
 694
 695 struct wmab_ret {
 696         u32 eax;
 697         u32 ebx;
 698         u32 ecx;
 699         u32 edx;
 700         u32 eex;
 701 };
 702
 703 static acpi_status wmab_execute(struct wmab_args *regbuf,
 704 struct acpi_buffer *result)
 705 {
 706         struct acpi_buffer input;
 707         acpi_status status;
 708         input.length = sizeof(struct wmab_args);
 709         input.pointer = (u8 *)regbuf;
 710
 711         status = wmi_evaluate_method(AMW0_GUID1, 0, 1, &input, result);
 712
 713         return status;
 714 }
 715
 716 static acpi_status AMW0_get_u32(u32 *value, u32 cap)
 717 {
 718         int err;
 719         u8 result;
 720
 721         switch (cap) {
 722         case ACER_CAP_MAILLED:
 723                 switch (quirks->mailled) {
 724                 default:
 725                         err = ec_read(0xA, &result);
 726                         if (err)
 727                                 return AE_ERROR;
 728                         *value = (result >> 7) & 0x1;
 729                         return AE_OK;
 730                 }
 731                 break;
 732         case ACER_CAP_WIRELESS:
 733                 switch (quirks->wireless) {
 734                 case 1:
 735                         err = ec_read(0x7B, &result);
 736                         if (err)
 737                                 return AE_ERROR;
 738                         *value = result & 0x1;
 739                         return AE_OK;
 740                 case 2:
 741                         err = ec_read(0x71, &result);
 742                         if (err)
 743                                 return AE_ERROR;
 744                         *value = result & 0x1;
 745                         return AE_OK;
 746                 case 3:
 747                         err = ec_read(0x78, &result);
 748                         if (err)
 749                                 return AE_ERROR;
 750                         *value = result & 0x1;
 751                         return AE_OK;
 752                 default:
 753                         err = ec_read(0xA, &result);
 754                         if (err)
 755                                 return AE_ERROR;
 756                         *value = (result >> 2) & 0x1;
 757                         return AE_OK;
 758                 }
 759                 break;
 760         case ACER_CAP_BLUETOOTH:
 761                 switch (quirks->bluetooth) {
 762                 default:
 763                         err = ec_read(0xA, &result);
 764                         if (err)
 765                                 return AE_ERROR;
 766                         *value = (result >> 4) & 0x1;
 767                         return AE_OK;
 768                 }
 769                 break;
 770         case ACER_CAP_BRIGHTNESS:
 771                 switch (quirks->brightness) {
 772                 default:
 773                         err = ec_read(0x83, &result);
 774                         if (err)
 775                                 return AE_ERROR;
 776                         *value = result;
 777                         return AE_OK;
 778                 }
 779                 break;
 780         default:
 781                 return AE_ERROR;
 782         }
 783         return AE_OK;
 784 }
 785
 786 static acpi_status AMW0_set_u32(u32 value, u32 cap)
 787 {
 788         struct wmab_args args;
 789
 790         args.eax = ACER_AMW0_WRITE;
 791         args.ebx = value ? (1<<8) : 0;
 792         args.ecx = args.edx = 0;
 793
 794         switch (cap) {
 795         case ACER_CAP_MAILLED:
 796                 if (value > 1)
 797                         return AE_BAD_PARAMETER;
 798                 args.ebx |= ACER_AMW0_MAILLED_MASK;
 799                 break;
 800         case ACER_CAP_WIRELESS:
 801                 if (value > 1)
 802                         return AE_BAD_PARAMETER;
 803                 args.ebx |= ACER_AMW0_WIRELESS_MASK;
 804                 break;
 805         case ACER_CAP_BLUETOOTH:
 806                 if (value > 1)
 807                         return AE_BAD_PARAMETER;
 808                 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
 809                 break;
 810         case ACER_CAP_BRIGHTNESS:
 811                 if (value > max_brightness)
 812                         return AE_BAD_PARAMETER;
 813                 switch (quirks->brightness) {
 814                 default:
 815                         return ec_write(0x83, value);
 816                 }
 817         default:
 818                 return AE_ERROR;
 819         }
 820
 821         /* Actually do the set */
 822         return wmab_execute(&args, NULL);
 823 }
 824
 825 static acpi_status __init AMW0_find_mailled(void)
 826 {
 827         struct wmab_args args;
 828         struct wmab_ret ret;
 829         acpi_status status = AE_OK;
 830         struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
 831         union acpi_object *obj;
 832
 833         args.eax = 0x86;
 834         args.ebx = args.ecx = args.edx = 0;
 835
 836         status = wmab_execute(&args, &out);
 837         if (ACPI_FAILURE(status))
 838                 return status;
 839
 840         obj = (union acpi_object *) out.pointer;
 841         if (obj && obj->type == ACPI_TYPE_BUFFER &&
 842         obj->buffer.length == sizeof(struct wmab_ret)) {
 843                 ret = *((struct wmab_ret *) obj->buffer.pointer);
 844         } else {
 845                 kfree(out.pointer);
 846                 return AE_ERROR;
 847         }
 848
 849         if (ret.eex & 0x1)
 850                 interface->capability |= ACER_CAP_MAILLED;
 851
 852         kfree(out.pointer);
 853
 854         return AE_OK;
 855 }
 856
 857 static const struct acpi_device_id norfkill_ids[] __initconst = {
 858         { "VPC2004", 0},
 859         { "IBM0068", 0},
 860         { "LEN0068", 0},
 861         { "SNY5001", 0},        /* sony-laptop in charge */
 862         { "HPQ6601", 0},
 863         { "", 0},
 864 };
 865
 866 static int __init AMW0_set_cap_acpi_check_device(void)
 867 {
 868         const struct acpi_device_id *id;
 869
 870         for (id = norfkill_ids; id->id[0]; id++)
 871                 if (acpi_dev_found(id->id))
 872                         return true;
 873
 874         return false;
 875 }
 876
 877 static acpi_status __init AMW0_set_capabilities(void)
 878 {
 879         struct wmab_args args;
 880         struct wmab_ret ret;
 881         acpi_status status;
 882         struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
 883         union acpi_object *obj;
 884
 885         /*
 886          * On laptops with this strange GUID (non Acer), normal probing doesn't
 887          * work.
 888          */
 889         if (wmi_has_guid(AMW0_GUID2)) {
 890                 if ((quirks != &quirk_unknown) ||
 891                     !AMW0_set_cap_acpi_check_device())
 892                         interface->capability |= ACER_CAP_WIRELESS;
 893                 return AE_OK;
 894         }
 895
 896         args.eax = ACER_AMW0_WRITE;
 897         args.ecx = args.edx = 0;
 898
 899         args.ebx = 0xa2 << 8;
 900         args.ebx |= ACER_AMW0_WIRELESS_MASK;
 901
 902         status = wmab_execute(&args, &out);
 903         if (ACPI_FAILURE(status))
 904                 return status;
 905
 906         obj = out.pointer;
 907         if (obj && obj->type == ACPI_TYPE_BUFFER &&
 908         obj->buffer.length == sizeof(struct wmab_ret)) {
 909                 ret = *((struct wmab_ret *) obj->buffer.pointer);
 910         } else {
 911                 status = AE_ERROR;
 912                 goto out;
 913         }
 914
 915         if (ret.eax & 0x1)
 916                 interface->capability |= ACER_CAP_WIRELESS;
 917
 918         args.ebx = 2 << 8;
 919         args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
 920
 921         /*
 922          * It's ok to use existing buffer for next wmab_execute call.
 923          * But we need to kfree(out.pointer) if next wmab_execute fail.
 924          */
 925         status = wmab_execute(&args, &out);
 926         if (ACPI_FAILURE(status))
 927                 goto out;
 928
 929         obj = (union acpi_object *) out.pointer;
 930         if (obj && obj->type == ACPI_TYPE_BUFFER
 931         && obj->buffer.length == sizeof(struct wmab_ret)) {
 932                 ret = *((struct wmab_ret *) obj->buffer.pointer);
 933         } else {
 934                 status = AE_ERROR;
 935                 goto out;
 936         }
 937
 938         if (ret.eax & 0x1)
 939                 interface->capability |= ACER_CAP_BLUETOOTH;
 940
 941         /*
 942          * This appears to be safe to enable, since all Wistron based laptops
 943          * appear to use the same EC register for brightness, even if they
 944          * differ for wireless, etc
 945          */
 946         if (quirks->brightness >= 0)
 947                 interface->capability |= ACER_CAP_BRIGHTNESS;
 948
 949         status = AE_OK;
 950 out:
 951         kfree(out.pointer);
 952         return status;
 953 }
 954
 955 static struct wmi_interface AMW0_interface = {
 956         .type = ACER_AMW0,
 957 };
 958
 959 static struct wmi_interface AMW0_V2_interface = {
 960         .type = ACER_AMW0_V2,
 961 };
 962
 963 /*
 964  * New interface (The WMID interface)
 965  */
 966 static acpi_status
 967 WMI_execute_u32(u32 method_id, u32 in, u32 *out)
 968 {
 969         struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
 970         struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
 971         union acpi_object *obj;
 972         u32 tmp = 0;
 973         acpi_status status;
 974
 975         status = wmi_evaluate_method(WMID_GUID1, 0, method_id, &input, &result);
 976
 977         if (ACPI_FAILURE(status))
 978                 return status;
 979
 980         obj = (union acpi_object *) result.pointer;
 981         if (obj) {
 982                 if (obj->type == ACPI_TYPE_BUFFER &&
 983                         (obj->buffer.length == sizeof(u32) ||
 984                         obj->buffer.length == sizeof(u64))) {
 985                         tmp = *((u32 *) obj->buffer.pointer);
 986                 } else if (obj->type == ACPI_TYPE_INTEGER) {
 987                         tmp = (u32) obj->integer.value;
 988                 }
 989         }
 990
 991         if (out)
 992                 *out = tmp;
 993
 994         kfree(result.pointer);
 995
 996         return status;
 997 }
 998
 999 static acpi_status WMID_get_u32(u32 *value, u32 cap)
1000 {
1001         acpi_status status;
1002         u8 tmp;
1003         u32 result, method_id = 0;
1004
1005         switch (cap) {
1006         case ACER_CAP_WIRELESS:
1007                 method_id = ACER_WMID_GET_WIRELESS_METHODID;
1008                 break;
1009         case ACER_CAP_BLUETOOTH:
1010                 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
1011                 break;
1012         case ACER_CAP_BRIGHTNESS:
1013                 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
1014                 break;
1015         case ACER_CAP_THREEG:
1016                 method_id = ACER_WMID_GET_THREEG_METHODID;
1017                 break;
1018         case ACER_CAP_MAILLED:
1019                 if (quirks->mailled == 1) {
1020                         ec_read(0x9f, &tmp);
1021                         *value = tmp & 0x1;
1022                         return 0;
1023                 }
1024                 fallthrough;
1025         default:
1026                 return AE_ERROR;
1027         }
1028         status = WMI_execute_u32(method_id, 0, &result);
1029
1030         if (ACPI_SUCCESS(status))
1031                 *value = (u8)result;
1032
1033         return status;
1034 }
1035
1036 static acpi_status WMID_set_u32(u32 value, u32 cap)
1037 {
1038         u32 method_id = 0;
1039         char param;
1040
1041         switch (cap) {
1042         case ACER_CAP_BRIGHTNESS:
1043                 if (value > max_brightness)
1044                         return AE_BAD_PARAMETER;
1045                 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
1046                 break;
1047         case ACER_CAP_WIRELESS:
1048                 if (value > 1)
1049                         return AE_BAD_PARAMETER;
1050                 method_id = ACER_WMID_SET_WIRELESS_METHODID;
1051                 break;
1052         case ACER_CAP_BLUETOOTH:
1053                 if (value > 1)
1054                         return AE_BAD_PARAMETER;
1055                 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
1056                 break;
1057         case ACER_CAP_THREEG:
1058                 if (value > 1)
1059                         return AE_BAD_PARAMETER;
1060                 method_id = ACER_WMID_SET_THREEG_METHODID;
1061                 break;
1062         case ACER_CAP_MAILLED:
1063                 if (value > 1)
1064                         return AE_BAD_PARAMETER;
1065                 if (quirks->mailled == 1) {
1066                         param = value ? 0x92 : 0x93;
1067                         i8042_lock_chip();
1068                         i8042_command(&param, 0x1059);
1069                         i8042_unlock_chip();
1070                         return 0;
1071                 }
1072                 break;
1073         default:
1074                 return AE_ERROR;
1075         }
1076         return WMI_execute_u32(method_id, (u32)value, NULL);
1077 }
1078
1079 static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1080 {
1081         struct wmid3_gds_return_value return_value;
1082         acpi_status status;
1083         union acpi_object *obj;
1084         struct wmid3_gds_get_input_param params = {
1085                 .function_num = 0x1,
1086                 .hotkey_number = commun_fn_key_number,
1087                 .devices = device,
1088         };
1089         struct acpi_buffer input = {
1090                 sizeof(struct wmid3_gds_get_input_param),
1091                 &params
1092         };
1093         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1094
1095         status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1096         if (ACPI_FAILURE(status))
1097                 return status;
1098
1099         obj = output.pointer;
1100
1101         if (!obj)
1102                 return AE_ERROR;
1103         else if (obj->type != ACPI_TYPE_BUFFER) {
1104                 kfree(obj);
1105                 return AE_ERROR;
1106         }
1107         if (obj->buffer.length != 8) {
1108                 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1109                 kfree(obj);
1110                 return AE_ERROR;
1111         }
1112
1113         return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1114         kfree(obj);
1115
1116         if (return_value.error_code || return_value.ec_return_value)
1117                 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1118                         device,
1119                         return_value.error_code,
1120                         return_value.ec_return_value);
1121         else
1122                 *value = !!(return_value.devices & device);
1123
1124         return status;
1125 }
1126
1127 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1128 {
1129         u16 device;
1130
1131         switch (cap) {
1132         case ACER_CAP_WIRELESS:
1133                 device = ACER_WMID3_GDS_WIRELESS;
1134                 break;
1135         case ACER_CAP_BLUETOOTH:
1136                 device = ACER_WMID3_GDS_BLUETOOTH;
1137                 break;
1138         case ACER_CAP_THREEG:
1139                 device = ACER_WMID3_GDS_THREEG;
1140                 break;
1141         default:
1142                 return AE_ERROR;
1143         }
1144         return wmid3_get_device_status(value, device);
1145 }
1146
1147 static acpi_status wmid3_set_device_status(u32 value, u16 device)
1148 {
1149         struct wmid3_gds_return_value return_value;
1150         acpi_status status;
1151         union acpi_object *obj;
1152         u16 devices;
1153         struct wmid3_gds_get_input_param get_params = {
1154                 .function_num = 0x1,
1155                 .hotkey_number = commun_fn_key_number,
1156                 .devices = commun_func_bitmap,
1157         };
1158         struct acpi_buffer get_input = {
1159                 sizeof(struct wmid3_gds_get_input_param),
1160                 &get_params
1161         };
1162         struct wmid3_gds_set_input_param set_params = {
1163                 .function_num = 0x2,
1164                 .hotkey_number = commun_fn_key_number,
1165                 .devices = commun_func_bitmap,
1166         };
1167         struct acpi_buffer set_input = {
1168                 sizeof(struct wmid3_gds_set_input_param),
1169                 &set_params
1170         };
1171         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1172         struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1173
1174         status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1175         if (ACPI_FAILURE(status))
1176                 return status;
1177
1178         obj = output.pointer;
1179
1180         if (!obj)
1181                 return AE_ERROR;
1182         else if (obj->type != ACPI_TYPE_BUFFER) {
1183                 kfree(obj);
1184                 return AE_ERROR;
1185         }
1186         if (obj->buffer.length != 8) {
1187                 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1188                 kfree(obj);
1189                 return AE_ERROR;
1190         }
1191
1192         return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1193         kfree(obj);
1194
1195         if (return_value.error_code || return_value.ec_return_value) {
1196                 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1197                         return_value.error_code,
1198                         return_value.ec_return_value);
1199                 return status;
1200         }
1201
1202         devices = return_value.devices;
1203         set_params.devices = (value) ? (devices | device) : (devices & ~device);
1204
1205         status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1206         if (ACPI_FAILURE(status))
1207                 return status;
1208
1209         obj = output2.pointer;
1210
1211         if (!obj)
1212                 return AE_ERROR;
1213         else if (obj->type != ACPI_TYPE_BUFFER) {
1214                 kfree(obj);
1215                 return AE_ERROR;
1216         }
1217         if (obj->buffer.length != 4) {
1218                 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1219                 kfree(obj);
1220                 return AE_ERROR;
1221         }
1222
1223         return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1224         kfree(obj);
1225
1226         if (return_value.error_code || return_value.ec_return_value)
1227                 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1228                         return_value.error_code,
1229                         return_value.ec_return_value);
1230
1231         return status;
1232 }
1233
1234 static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1235 {
1236         u16 device;
1237
1238         switch (cap) {
1239         case ACER_CAP_WIRELESS:
1240                 device = ACER_WMID3_GDS_WIRELESS;
1241                 break;
1242         case ACER_CAP_BLUETOOTH:
1243                 device = ACER_WMID3_GDS_BLUETOOTH;
1244                 break;
1245         case ACER_CAP_THREEG:
1246                 device = ACER_WMID3_GDS_THREEG;
1247                 break;
1248         default:
1249                 return AE_ERROR;
1250         }
1251         return wmid3_set_device_status(value, device);
1252 }
1253
1254 static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
1255 {
1256         struct hotkey_function_type_aa *type_aa;
1257
1258         /* We are looking for OEM-specific Type AAh */
1259         if (header->type != 0xAA)
1260                 return;
1261
1262         has_type_aa = true;
1263         type_aa = (struct hotkey_function_type_aa *) header;
1264
1265         pr_info("Function bitmap for Communication Button: 0x%x\n",
1266                 type_aa->commun_func_bitmap);
1267         commun_func_bitmap = type_aa->commun_func_bitmap;
1268
1269         if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1270                 interface->capability |= ACER_CAP_WIRELESS;
1271         if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1272                 interface->capability |= ACER_CAP_THREEG;
1273         if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1274                 interface->capability |= ACER_CAP_BLUETOOTH;
1275         if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_RFBTN)
1276                 commun_func_bitmap &= ~ACER_WMID3_GDS_RFBTN;
1277
1278         commun_fn_key_number = type_aa->commun_fn_key_number;
1279 }
1280
1281 static acpi_status __init WMID_set_capabilities(void)
1282 {
1283         struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1284         union acpi_object *obj;
1285         acpi_status status;
1286         u32 devices;
1287
1288         status = wmi_query_block(WMID_GUID2, 0, &out);
1289         if (ACPI_FAILURE(status))
1290                 return status;
1291
1292         obj = (union acpi_object *) out.pointer;
1293         if (obj) {
1294                 if (obj->type == ACPI_TYPE_BUFFER &&
1295                         (obj->buffer.length == sizeof(u32) ||
1296                         obj->buffer.length == sizeof(u64))) {
1297                         devices = *((u32 *) obj->buffer.pointer);
1298                 } else if (obj->type == ACPI_TYPE_INTEGER) {
1299                         devices = (u32) obj->integer.value;
1300                 } else {
1301                         kfree(out.pointer);
1302                         return AE_ERROR;
1303                 }
1304         } else {
1305                 kfree(out.pointer);
1306                 return AE_ERROR;
1307         }
1308
1309         pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1310         if (devices & 0x07)
1311                 interface->capability |= ACER_CAP_WIRELESS;
1312         if (devices & 0x40)
1313                 interface->capability |= ACER_CAP_THREEG;
1314         if (devices & 0x10)
1315                 interface->capability |= ACER_CAP_BLUETOOTH;
1316
1317         if (!(devices & 0x20))
1318                 max_brightness = 0x9;
1319
1320         kfree(out.pointer);
1321         return status;
1322 }
1323
1324 static struct wmi_interface wmid_interface = {
1325         .type = ACER_WMID,
1326 };
1327
1328 static struct wmi_interface wmid_v2_interface = {
1329         .type = ACER_WMID_v2,
1330 };
1331
1332 /*
1333  * WMID Gaming interface
1334  */
1335
1336 static acpi_status
1337 WMI_gaming_execute_u64(u32 method_id, u64 in, u64 *out)
1338 {
1339         struct acpi_buffer input = { (acpi_size) sizeof(u64), (void *)(&in) };
1340         struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
1341         union acpi_object *obj;
1342         u32 tmp = 0;
1343         acpi_status status;
1344
1345         status = wmi_evaluate_method(WMID_GUID4, 0, method_id, &input, &result);
1346
1347         if (ACPI_FAILURE(status))
1348                 return status;
1349         obj = (union acpi_object *) result.pointer;
1350
1351         if (obj) {
1352                 if (obj->type == ACPI_TYPE_BUFFER) {
1353                         if (obj->buffer.length == sizeof(u32))
1354                                 tmp = *((u32 *) obj->buffer.pointer);
1355                         else if (obj->buffer.length == sizeof(u64))
1356                                 tmp = *((u64 *) obj->buffer.pointer);
1357                 } else if (obj->type == ACPI_TYPE_INTEGER) {
1358                         tmp = (u64) obj->integer.value;
1359                 }
1360         }
1361
1362         if (out)
1363                 *out = tmp;
1364
1365         kfree(result.pointer);
1366
1367         return status;
1368 }
1369
1370 static acpi_status WMID_gaming_set_u64(u64 value, u32 cap)
1371 {
1372         u32 method_id = 0;
1373
1374         if (!(interface->capability & cap))
1375                 return AE_BAD_PARAMETER;
1376
1377         switch (cap) {
1378         case ACER_CAP_TURBO_LED:
1379                 method_id = ACER_WMID_SET_GAMING_LED_METHODID;
1380                 break;
1381         case ACER_CAP_TURBO_FAN:
1382                 method_id = ACER_WMID_SET_GAMING_FAN_BEHAVIOR;
1383                 break;
1384         case ACER_CAP_TURBO_OC:
1385                 method_id = ACER_WMID_SET_GAMING_MISC_SETTING_METHODID;
1386                 break;
1387         default:
1388                 return AE_BAD_PARAMETER;
1389         }
1390
1391         return WMI_gaming_execute_u64(method_id, value, NULL);
1392 }
1393
1394 static acpi_status WMID_gaming_get_u64(u64 *value, u32 cap)
1395 {
1396         acpi_status status;
1397         u64 result;
1398         u64 input;
1399         u32 method_id;
1400
1401         if (!(interface->capability & cap))
1402                 return AE_BAD_PARAMETER;
1403
1404         switch (cap) {
1405         case ACER_CAP_TURBO_LED:
1406                 method_id = ACER_WMID_GET_GAMING_LED_METHODID;
1407                 input = 0x1;
1408                 break;
1409         default:
1410                 return AE_BAD_PARAMETER;
1411         }
1412         status = WMI_gaming_execute_u64(method_id, input, &result);
1413         if (ACPI_SUCCESS(status))
1414                 *value = (u64) result;
1415
1416         return status;
1417 }
1418
1419 static void WMID_gaming_set_fan_mode(u8 fan_mode)
1420 {
1421         /* fan_mode = 1 is used for auto, fan_mode = 2 used for turbo*/
1422         u64 gpu_fan_config1 = 0, gpu_fan_config2 = 0;
1423         int i;
1424
1425         if (quirks->cpu_fans > 0)
1426                 gpu_fan_config2 |= 1;
1427         for (i = 0; i < (quirks->cpu_fans + quirks->gpu_fans); ++i)
1428                 gpu_fan_config2 |= 1 << (i + 1);
1429         for (i = 0; i < quirks->gpu_fans; ++i)
1430                 gpu_fan_config2 |= 1 << (i + 3);
1431         if (quirks->cpu_fans > 0)
1432                 gpu_fan_config1 |= fan_mode;
1433         for (i = 0; i < (quirks->cpu_fans + quirks->gpu_fans); ++i)
1434                 gpu_fan_config1 |= fan_mode << (2 * i + 2);
1435         for (i = 0; i < quirks->gpu_fans; ++i)
1436                 gpu_fan_config1 |= fan_mode << (2 * i + 6);
1437         WMID_gaming_set_u64(gpu_fan_config2 | gpu_fan_config1 << 16, ACER_CAP_TURBO_FAN);
1438 }
1439
1440 /*
1441  * Generic Device (interface-independent)
1442  */
1443
1444 static acpi_status get_u32(u32 *value, u32 cap)
1445 {
1446         acpi_status status = AE_ERROR;
1447
1448         switch (interface->type) {
1449         case ACER_AMW0:
1450                 status = AMW0_get_u32(value, cap);
1451                 break;
1452         case ACER_AMW0_V2:
1453                 if (cap == ACER_CAP_MAILLED) {
1454                         status = AMW0_get_u32(value, cap);
1455                         break;
1456                 }
1457                 fallthrough;
1458         case ACER_WMID:
1459                 status = WMID_get_u32(value, cap);
1460                 break;
1461         case ACER_WMID_v2:
1462                 if (cap & (ACER_CAP_WIRELESS |
1463                            ACER_CAP_BLUETOOTH |
1464                            ACER_CAP_THREEG))
1465                         status = wmid_v2_get_u32(value, cap);
1466                 else if (wmi_has_guid(WMID_GUID2))
1467                         status = WMID_get_u32(value, cap);
1468                 break;
1469         }
1470
1471         return status;
1472 }
1473
1474 static acpi_status set_u32(u32 value, u32 cap)
1475 {
1476         acpi_status status;
1477
1478         if (interface->capability & cap) {
1479                 switch (interface->type) {
1480                 case ACER_AMW0:
1481                         return AMW0_set_u32(value, cap);
1482                 case ACER_AMW0_V2:
1483                         if (cap == ACER_CAP_MAILLED)
1484                                 return AMW0_set_u32(value, cap);
1485
1486                         /*
1487                          * On some models, some WMID methods don't toggle
1488                          * properly. For those cases, we want to run the AMW0
1489                          * method afterwards to be certain we've really toggled
1490                          * the device state.
1491                          */
1492                         if (cap == ACER_CAP_WIRELESS ||
1493                                 cap == ACER_CAP_BLUETOOTH) {
1494                                 status = WMID_set_u32(value, cap);
1495                                 if (ACPI_FAILURE(status))
1496                                         return status;
1497
1498                                 return AMW0_set_u32(value, cap);
1499                         }
1500                         fallthrough;
1501                 case ACER_WMID:
1502                         return WMID_set_u32(value, cap);
1503                 case ACER_WMID_v2:
1504                         if (cap & (ACER_CAP_WIRELESS |
1505                                    ACER_CAP_BLUETOOTH |
1506                                    ACER_CAP_THREEG))
1507                                 return wmid_v2_set_u32(value, cap);
1508                         else if (wmi_has_guid(WMID_GUID2))
1509                                 return WMID_set_u32(value, cap);
1510                         fallthrough;
1511                 default:
1512                         return AE_BAD_PARAMETER;
1513                 }
1514         }
1515         return AE_BAD_PARAMETER;
1516 }
1517
1518 static void __init acer_commandline_init(void)
1519 {
1520         /*
1521          * These will all fail silently if the value given is invalid, or the
1522          * capability isn't available on the given interface
1523          */
1524         if (mailled >= 0)
1525                 set_u32(mailled, ACER_CAP_MAILLED);
1526         if (!has_type_aa && threeg >= 0)
1527                 set_u32(threeg, ACER_CAP_THREEG);
1528         if (brightness >= 0)
1529                 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1530 }
1531
1532 /*
1533  * LED device (Mail LED only, no other LEDs known yet)
1534  */
1535 static void mail_led_set(struct led_classdev *led_cdev,
1536 enum led_brightness value)
1537 {
1538         set_u32(value, ACER_CAP_MAILLED);
1539 }
1540
1541 static struct led_classdev mail_led = {
1542         .name = "acer-wmi::mail",
1543         .brightness_set = mail_led_set,
1544 };
1545
1546 static int acer_led_init(struct device *dev)
1547 {
1548         return led_classdev_register(dev, &mail_led);
1549 }
1550
1551 static void acer_led_exit(void)
1552 {
1553         set_u32(LED_OFF, ACER_CAP_MAILLED);
1554         led_classdev_unregister(&mail_led);
1555 }
1556
1557 /*
1558  * Backlight device
1559  */
1560 static struct backlight_device *acer_backlight_device;
1561
1562 static int read_brightness(struct backlight_device *bd)
1563 {
1564         u32 value;
1565         get_u32(&value, ACER_CAP_BRIGHTNESS);
1566         return value;
1567 }
1568
1569 static int update_bl_status(struct backlight_device *bd)
1570 {
1571         int intensity = backlight_get_brightness(bd);
1572
1573         set_u32(intensity, ACER_CAP_BRIGHTNESS);
1574
1575         return 0;
1576 }
1577
1578 static const struct backlight_ops acer_bl_ops = {
1579         .get_brightness = read_brightness,
1580         .update_status = update_bl_status,
1581 };
1582
1583 static int acer_backlight_init(struct device *dev)
1584 {
1585         struct backlight_properties props;
1586         struct backlight_device *bd;
1587
1588         memset(&props, 0, sizeof(struct backlight_properties));
1589         props.type = BACKLIGHT_PLATFORM;
1590         props.max_brightness = max_brightness;
1591         bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1592                                        &props);
1593         if (IS_ERR(bd)) {
1594                 pr_err("Could not register Acer backlight device\n");
1595                 acer_backlight_device = NULL;
1596                 return PTR_ERR(bd);
1597         }
1598
1599         acer_backlight_device = bd;
1600
1601         bd->props.power = FB_BLANK_UNBLANK;
1602         bd->props.brightness = read_brightness(bd);
1603         backlight_update_status(bd);
1604         return 0;
1605 }
1606
1607 static void acer_backlight_exit(void)
1608 {
1609         backlight_device_unregister(acer_backlight_device);
1610 }
1611
1612 /*
1613  * Accelerometer device
1614  */
1615 static acpi_handle gsensor_handle;
1616
1617 static int acer_gsensor_init(void)
1618 {
1619         acpi_status status;
1620         struct acpi_buffer output;
1621         union acpi_object out_obj;
1622
1623         output.length = sizeof(out_obj);
1624         output.pointer = &out_obj;
1625         status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1626         if (ACPI_FAILURE(status))
1627                 return -1;
1628
1629         return 0;
1630 }
1631
1632 static int acer_gsensor_open(struct input_dev *input)
1633 {
1634         return acer_gsensor_init();
1635 }
1636
1637 static int acer_gsensor_event(void)
1638 {
1639         acpi_status status;
1640         struct acpi_buffer output;
1641         union acpi_object out_obj[5];
1642
1643         if (!acer_wmi_accel_dev)
1644                 return -1;
1645
1646         output.length = sizeof(out_obj);
1647         output.pointer = out_obj;
1648
1649         status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1650         if (ACPI_FAILURE(status))
1651                 return -1;
1652
1653         if (out_obj->package.count != 4)
1654                 return -1;
1655
1656         input_report_abs(acer_wmi_accel_dev, ABS_X,
1657                 (s16)out_obj->package.elements[0].integer.value);
1658         input_report_abs(acer_wmi_accel_dev, ABS_Y,
1659                 (s16)out_obj->package.elements[1].integer.value);
1660         input_report_abs(acer_wmi_accel_dev, ABS_Z,
1661                 (s16)out_obj->package.elements[2].integer.value);
1662         input_sync(acer_wmi_accel_dev);
1663         return 0;
1664 }
1665
1666 /*
1667  *  Predator series turbo button
1668  */
1669 static int acer_toggle_turbo(void)
1670 {
1671         u64 turbo_led_state;
1672
1673         /* Get current state from turbo button */
1674         if (ACPI_FAILURE(WMID_gaming_get_u64(&turbo_led_state, ACER_CAP_TURBO_LED)))
1675                 return -1;
1676
1677         if (turbo_led_state) {
1678                 /* Turn off turbo led */
1679                 WMID_gaming_set_u64(0x1, ACER_CAP_TURBO_LED);
1680
1681                 /* Set FAN mode to auto */
1682                 WMID_gaming_set_fan_mode(0x1);
1683
1684                 /* Set OC to normal */
1685                 WMID_gaming_set_u64(0x5, ACER_CAP_TURBO_OC);
1686                 WMID_gaming_set_u64(0x7, ACER_CAP_TURBO_OC);
1687         } else {
1688                 /* Turn on turbo led */
1689                 WMID_gaming_set_u64(0x10001, ACER_CAP_TURBO_LED);
1690
1691                 /* Set FAN mode to turbo */
1692                 WMID_gaming_set_fan_mode(0x2);
1693
1694                 /* Set OC to turbo mode */
1695                 WMID_gaming_set_u64(0x205, ACER_CAP_TURBO_OC);
1696                 WMID_gaming_set_u64(0x207, ACER_CAP_TURBO_OC);
1697         }
1698         return turbo_led_state;
1699 }
1700
1701 /*
1702  * Switch series keyboard dock status
1703  */
1704 static int acer_kbd_dock_state_to_sw_tablet_mode(u8 kbd_dock_state)
1705 {
1706         switch (kbd_dock_state) {
1707         case 0x01: /* Docked, traditional clamshell laptop mode */
1708                 return 0;
1709         case 0x04: /* Stand-alone tablet */
1710         case 0x40: /* Docked, tent mode, keyboard not usable */
1711                 return 1;
1712         default:
1713                 pr_warn("Unknown kbd_dock_state 0x%02x\n", kbd_dock_state);
1714         }
1715
1716         return 0;
1717 }
1718
1719 static void acer_kbd_dock_get_initial_state(void)
1720 {
1721         u8 *output, input[8] = { 0x05, 0x00, };
1722         struct acpi_buffer input_buf = { sizeof(input), input };
1723         struct acpi_buffer output_buf = { ACPI_ALLOCATE_BUFFER, NULL };
1724         union acpi_object *obj;
1725         acpi_status status;
1726         int sw_tablet_mode;
1727
1728         status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input_buf, &output_buf);
1729         if (ACPI_FAILURE(status)) {
1730                 pr_err("Error getting keyboard-dock initial status: %s\n",
1731                        acpi_format_exception(status));
1732                 return;
1733         }
1734
1735         obj = output_buf.pointer;
1736         if (!obj || obj->type != ACPI_TYPE_BUFFER || obj->buffer.length != 8) {
1737                 pr_err("Unexpected output format getting keyboard-dock initial status\n");
1738                 goto out_free_obj;
1739         }
1740
1741         output = obj->buffer.pointer;
1742         if (output[0] != 0x00 || (output[3] != 0x05 && output[3] != 0x45)) {
1743                 pr_err("Unexpected output [0]=0x%02x [3]=0x%02x getting keyboard-dock initial status\n",
1744                        output[0], output[3]);
1745                 goto out_free_obj;
1746         }
1747
1748         sw_tablet_mode = acer_kbd_dock_state_to_sw_tablet_mode(output[4]);
1749         input_report_switch(acer_wmi_input_dev, SW_TABLET_MODE, sw_tablet_mode);
1750
1751 out_free_obj:
1752         kfree(obj);
1753 }
1754
1755 static void acer_kbd_dock_event(const struct event_return_value *event)
1756 {
1757         int sw_tablet_mode;
1758
1759         if (!has_cap(ACER_CAP_KBD_DOCK))
1760                 return;
1761
1762         sw_tablet_mode = acer_kbd_dock_state_to_sw_tablet_mode(event->kbd_dock_state);
1763         input_report_switch(acer_wmi_input_dev, SW_TABLET_MODE, sw_tablet_mode);
1764         input_sync(acer_wmi_input_dev);
1765 }
1766
1767 /*
1768  * Rfkill devices
1769  */
1770 static void acer_rfkill_update(struct work_struct *ignored);
1771 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1772 static void acer_rfkill_update(struct work_struct *ignored)
1773 {
1774         u32 state;
1775         acpi_status status;
1776
1777         if (has_cap(ACER_CAP_WIRELESS)) {
1778                 status = get_u32(&state, ACER_CAP_WIRELESS);
1779                 if (ACPI_SUCCESS(status)) {
1780                         if (quirks->wireless == 3)
1781                                 rfkill_set_hw_state(wireless_rfkill, !state);
1782                         else
1783                                 rfkill_set_sw_state(wireless_rfkill, !state);
1784                 }
1785         }
1786
1787         if (has_cap(ACER_CAP_BLUETOOTH)) {
1788                 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1789                 if (ACPI_SUCCESS(status))
1790                         rfkill_set_sw_state(bluetooth_rfkill, !state);
1791         }
1792
1793         if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1794                 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1795                 if (ACPI_SUCCESS(status))
1796                         rfkill_set_sw_state(threeg_rfkill, !state);
1797         }
1798
1799         schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1800 }
1801
1802 static int acer_rfkill_set(void *data, bool blocked)
1803 {
1804         acpi_status status;
1805         u32 cap = (unsigned long)data;
1806
1807         if (rfkill_inited) {
1808                 status = set_u32(!blocked, cap);
1809                 if (ACPI_FAILURE(status))
1810                         return -ENODEV;
1811         }
1812
1813         return 0;
1814 }
1815
1816 static const struct rfkill_ops acer_rfkill_ops = {
1817         .set_block = acer_rfkill_set,
1818 };
1819
1820 static struct rfkill *acer_rfkill_register(struct device *dev,
1821                                            enum rfkill_type type,
1822                                            char *name, u32 cap)
1823 {
1824         int err;
1825         struct rfkill *rfkill_dev;
1826         u32 state;
1827         acpi_status status;
1828
1829         rfkill_dev = rfkill_alloc(name, dev, type,
1830                                   &acer_rfkill_ops,
1831                                   (void *)(unsigned long)cap);
1832         if (!rfkill_dev)
1833                 return ERR_PTR(-ENOMEM);
1834
1835         status = get_u32(&state, cap);
1836
1837         err = rfkill_register(rfkill_dev);
1838         if (err) {
1839                 rfkill_destroy(rfkill_dev);
1840                 return ERR_PTR(err);
1841         }
1842
1843         if (ACPI_SUCCESS(status))
1844                 rfkill_set_sw_state(rfkill_dev, !state);
1845
1846         return rfkill_dev;
1847 }
1848
1849 static int acer_rfkill_init(struct device *dev)
1850 {
1851         int err;
1852
1853         if (has_cap(ACER_CAP_WIRELESS)) {
1854                 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1855                         "acer-wireless", ACER_CAP_WIRELESS);
1856                 if (IS_ERR(wireless_rfkill)) {
1857                         err = PTR_ERR(wireless_rfkill);
1858                         goto error_wireless;
1859                 }
1860         }
1861
1862         if (has_cap(ACER_CAP_BLUETOOTH)) {
1863                 bluetooth_rfkill = acer_rfkill_register(dev,
1864                         RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1865                         ACER_CAP_BLUETOOTH);
1866                 if (IS_ERR(bluetooth_rfkill)) {
1867                         err = PTR_ERR(bluetooth_rfkill);
1868                         goto error_bluetooth;
1869                 }
1870         }
1871
1872         if (has_cap(ACER_CAP_THREEG)) {
1873                 threeg_rfkill = acer_rfkill_register(dev,
1874                         RFKILL_TYPE_WWAN, "acer-threeg",
1875                         ACER_CAP_THREEG);
1876                 if (IS_ERR(threeg_rfkill)) {
1877                         err = PTR_ERR(threeg_rfkill);
1878                         goto error_threeg;
1879                 }
1880         }
1881
1882         rfkill_inited = true;
1883
1884         if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1885             has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1886                 schedule_delayed_work(&acer_rfkill_work,
1887                         round_jiffies_relative(HZ));
1888
1889         return 0;
1890
1891 error_threeg:
1892         if (has_cap(ACER_CAP_BLUETOOTH)) {
1893                 rfkill_unregister(bluetooth_rfkill);
1894                 rfkill_destroy(bluetooth_rfkill);
1895         }
1896 error_bluetooth:
1897         if (has_cap(ACER_CAP_WIRELESS)) {
1898                 rfkill_unregister(wireless_rfkill);
1899                 rfkill_destroy(wireless_rfkill);
1900         }
1901 error_wireless:
1902         return err;
1903 }
1904
1905 static void acer_rfkill_exit(void)
1906 {
1907         if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1908             has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1909                 cancel_delayed_work_sync(&acer_rfkill_work);
1910
1911         if (has_cap(ACER_CAP_WIRELESS)) {
1912                 rfkill_unregister(wireless_rfkill);
1913                 rfkill_destroy(wireless_rfkill);
1914         }
1915
1916         if (has_cap(ACER_CAP_BLUETOOTH)) {
1917                 rfkill_unregister(bluetooth_rfkill);
1918                 rfkill_destroy(bluetooth_rfkill);
1919         }
1920
1921         if (has_cap(ACER_CAP_THREEG)) {
1922                 rfkill_unregister(threeg_rfkill);
1923                 rfkill_destroy(threeg_rfkill);
1924         }
1925         return;
1926 }
1927
1928 static void acer_wmi_notify(u32 value, void *context)
1929 {
1930         struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1931         union acpi_object *obj;
1932         struct event_return_value return_value;
1933         acpi_status status;
1934         u16 device_state;
1935         const struct key_entry *key;
1936         u32 scancode;
1937
1938         status = wmi_get_event_data(value, &response);
1939         if (status != AE_OK) {
1940                 pr_warn("bad event status 0x%x\n", status);
1941                 return;
1942         }
1943
1944         obj = (union acpi_object *)response.pointer;
1945
1946         if (!obj)
1947                 return;
1948         if (obj->type != ACPI_TYPE_BUFFER) {
1949                 pr_warn("Unknown response received %d\n", obj->type);
1950                 kfree(obj);
1951                 return;
1952         }
1953         if (obj->buffer.length != 8) {
1954                 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1955                 kfree(obj);
1956                 return;
1957         }
1958
1959         return_value = *((struct event_return_value *)obj->buffer.pointer);
1960         kfree(obj);
1961
1962         switch (return_value.function) {
1963         case WMID_HOTKEY_EVENT:
1964                 device_state = return_value.device_state;
1965                 pr_debug("device state: 0x%x\n", device_state);
1966
1967                 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1968                                                         return_value.key_num);
1969                 if (!key) {
1970                         pr_warn("Unknown key number - 0x%x\n",
1971                                 return_value.key_num);
1972                 } else {
1973                         scancode = return_value.key_num;
1974                         switch (key->keycode) {
1975                         case KEY_WLAN:
1976                         case KEY_BLUETOOTH:
1977                                 if (has_cap(ACER_CAP_WIRELESS))
1978                                         rfkill_set_sw_state(wireless_rfkill,
1979                                                 !(device_state & ACER_WMID3_GDS_WIRELESS));
1980                                 if (has_cap(ACER_CAP_THREEG))
1981                                         rfkill_set_sw_state(threeg_rfkill,
1982                                                 !(device_state & ACER_WMID3_GDS_THREEG));
1983                                 if (has_cap(ACER_CAP_BLUETOOTH))
1984                                         rfkill_set_sw_state(bluetooth_rfkill,
1985                                                 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1986                                 break;
1987                         case KEY_TOUCHPAD_TOGGLE:
1988                                 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1989                                                 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1990                         }
1991                         sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1992                 }
1993                 break;
1994         case WMID_ACCEL_OR_KBD_DOCK_EVENT:
1995                 acer_gsensor_event();
1996                 acer_kbd_dock_event(&return_value);
1997                 break;
1998         case WMID_GAMING_TURBO_KEY_EVENT:
1999                 if (return_value.key_num == 0x4)
2000                         acer_toggle_turbo();
2001                 break;
2002         default:
2003                 pr_warn("Unknown function number - %d - %d\n",
2004                         return_value.function, return_value.key_num);
2005                 break;
2006         }
2007 }
2008
2009 static acpi_status __init
2010 wmid3_set_function_mode(struct func_input_params *params,
2011                         struct func_return_value *return_value)
2012 {
2013         acpi_status status;
2014         union acpi_object *obj;
2015
2016         struct acpi_buffer input = { sizeof(struct func_input_params), params };
2017         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
2018
2019         status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
2020         if (ACPI_FAILURE(status))
2021                 return status;
2022
2023         obj = output.pointer;
2024
2025         if (!obj)
2026                 return AE_ERROR;
2027         else if (obj->type != ACPI_TYPE_BUFFER) {
2028                 kfree(obj);
2029                 return AE_ERROR;
2030         }
2031         if (obj->buffer.length != 4) {
2032                 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
2033                 kfree(obj);
2034                 return AE_ERROR;
2035         }
2036
2037         *return_value = *((struct func_return_value *)obj->buffer.pointer);
2038         kfree(obj);
2039
2040         return status;
2041 }
2042
2043 static int __init acer_wmi_enable_ec_raw(void)
2044 {
2045         struct func_return_value return_value;
2046         acpi_status status;
2047         struct func_input_params params = {
2048                 .function_num = 0x1,
2049                 .commun_devices = 0xFFFF,
2050                 .devices = 0xFFFF,
2051                 .app_status = 0x00,             /* Launch Manager Deactive */
2052                 .app_mask = 0x01,
2053         };
2054
2055         status = wmid3_set_function_mode(&params, &return_value);
2056
2057         if (return_value.error_code || return_value.ec_return_value)
2058                 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
2059                         return_value.error_code,
2060                         return_value.ec_return_value);
2061         else
2062                 pr_info("Enabled EC raw mode\n");
2063
2064         return status;
2065 }
2066
2067 static int __init acer_wmi_enable_lm(void)
2068 {
2069         struct func_return_value return_value;
2070         acpi_status status;
2071         struct func_input_params params = {
2072                 .function_num = 0x1,
2073                 .commun_devices = 0xFFFF,
2074                 .devices = 0xFFFF,
2075                 .app_status = 0x01,            /* Launch Manager Active */
2076                 .app_mask = 0x01,
2077         };
2078
2079         status = wmid3_set_function_mode(&params, &return_value);
2080
2081         if (return_value.error_code || return_value.ec_return_value)
2082                 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
2083                         return_value.error_code,
2084                         return_value.ec_return_value);
2085
2086         return status;
2087 }
2088
2089 static int __init acer_wmi_enable_rf_button(void)
2090 {
2091         struct func_return_value return_value;
2092         acpi_status status;
2093         struct func_input_params params = {
2094                 .function_num = 0x1,
2095                 .commun_devices = 0xFFFF,
2096                 .devices = 0xFFFF,
2097                 .app_status = 0x10,            /* RF Button Active */
2098                 .app_mask = 0x10,
2099         };
2100
2101         status = wmid3_set_function_mode(&params, &return_value);
2102
2103         if (return_value.error_code || return_value.ec_return_value)
2104                 pr_warn("Enabling RF Button failed: 0x%x - 0x%x\n",
2105                         return_value.error_code,
2106                         return_value.ec_return_value);
2107
2108         return status;
2109 }
2110
2111 static int __init acer_wmi_accel_setup(void)
2112 {
2113         struct acpi_device *adev;
2114         int err;
2115
2116         adev = acpi_dev_get_first_match_dev("BST0001", NULL, -1);
2117         if (!adev)
2118                 return -ENODEV;
2119
2120         gsensor_handle = acpi_device_handle(adev);
2121         acpi_dev_put(adev);
2122
2123         acer_wmi_accel_dev = input_allocate_device();
2124         if (!acer_wmi_accel_dev)
2125                 return -ENOMEM;
2126
2127         acer_wmi_accel_dev->open = acer_gsensor_open;
2128
2129         acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
2130         acer_wmi_accel_dev->phys = "wmi/input1";
2131         acer_wmi_accel_dev->id.bustype = BUS_HOST;
2132         acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
2133         input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
2134         input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
2135         input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
2136
2137         err = input_register_device(acer_wmi_accel_dev);
2138         if (err)
2139                 goto err_free_dev;
2140
2141         return 0;
2142
2143 err_free_dev:
2144         input_free_device(acer_wmi_accel_dev);
2145         return err;
2146 }
2147
2148 static int __init acer_wmi_input_setup(void)
2149 {
2150         acpi_status status;
2151         int err;
2152
2153         acer_wmi_input_dev = input_allocate_device();
2154         if (!acer_wmi_input_dev)
2155                 return -ENOMEM;
2156
2157         acer_wmi_input_dev->name = "Acer WMI hotkeys";
2158         acer_wmi_input_dev->phys = "wmi/input0";
2159         acer_wmi_input_dev->id.bustype = BUS_HOST;
2160
2161         err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
2162         if (err)
2163                 goto err_free_dev;
2164
2165         if (has_cap(ACER_CAP_KBD_DOCK))
2166                 input_set_capability(acer_wmi_input_dev, EV_SW, SW_TABLET_MODE);
2167
2168         status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
2169                                                 acer_wmi_notify, NULL);
2170         if (ACPI_FAILURE(status)) {
2171                 err = -EIO;
2172                 goto err_free_dev;
2173         }
2174
2175         if (has_cap(ACER_CAP_KBD_DOCK))
2176                 acer_kbd_dock_get_initial_state();
2177
2178         err = input_register_device(acer_wmi_input_dev);
2179         if (err)
2180                 goto err_uninstall_notifier;
2181
2182         return 0;
2183
2184 err_uninstall_notifier:
2185         wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2186 err_free_dev:
2187         input_free_device(acer_wmi_input_dev);
2188         return err;
2189 }
2190
2191 static void acer_wmi_input_destroy(void)
2192 {
2193         wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2194         input_unregister_device(acer_wmi_input_dev);
2195 }
2196
2197 /*
2198  * debugfs functions
2199  */
2200 static u32 get_wmid_devices(void)
2201 {
2202         struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
2203         union acpi_object *obj;
2204         acpi_status status;
2205         u32 devices = 0;
2206
2207         status = wmi_query_block(WMID_GUID2, 0, &out);
2208         if (ACPI_FAILURE(status))
2209                 return 0;
2210
2211         obj = (union acpi_object *) out.pointer;
2212         if (obj) {
2213                 if (obj->type == ACPI_TYPE_BUFFER &&
2214                         (obj->buffer.length == sizeof(u32) ||
2215                         obj->buffer.length == sizeof(u64))) {
2216                         devices = *((u32 *) obj->buffer.pointer);
2217                 } else if (obj->type == ACPI_TYPE_INTEGER) {
2218                         devices = (u32) obj->integer.value;
2219                 }
2220         }
2221
2222         kfree(out.pointer);
2223         return devices;
2224 }
2225
2226 /*
2227  * Platform device
2228  */
2229 static int acer_platform_probe(struct platform_device *device)
2230 {
2231         int err;
2232
2233         if (has_cap(ACER_CAP_MAILLED)) {
2234                 err = acer_led_init(&device->dev);
2235                 if (err)
2236                         goto error_mailled;
2237         }
2238
2239         if (has_cap(ACER_CAP_BRIGHTNESS)) {
2240                 err = acer_backlight_init(&device->dev);
2241                 if (err)
2242                         goto error_brightness;
2243         }
2244
2245         err = acer_rfkill_init(&device->dev);
2246         if (err)
2247                 goto error_rfkill;
2248
2249         return err;
2250
2251 error_rfkill:
2252         if (has_cap(ACER_CAP_BRIGHTNESS))
2253                 acer_backlight_exit();
2254 error_brightness:
2255         if (has_cap(ACER_CAP_MAILLED))
2256                 acer_led_exit();
2257 error_mailled:
2258         return err;
2259 }
2260
2261 static void acer_platform_remove(struct platform_device *device)
2262 {
2263         if (has_cap(ACER_CAP_MAILLED))
2264                 acer_led_exit();
2265         if (has_cap(ACER_CAP_BRIGHTNESS))
2266                 acer_backlight_exit();
2267
2268         acer_rfkill_exit();
2269 }
2270
2271 #ifdef CONFIG_PM_SLEEP
2272 static int acer_suspend(struct device *dev)
2273 {
2274         u32 value;
2275         struct acer_data *data = &interface->data;
2276
2277         if (!data)
2278                 return -ENOMEM;
2279
2280         if (has_cap(ACER_CAP_MAILLED)) {
2281                 get_u32(&value, ACER_CAP_MAILLED);
2282                 set_u32(LED_OFF, ACER_CAP_MAILLED);
2283                 data->mailled = value;
2284         }
2285
2286         if (has_cap(ACER_CAP_BRIGHTNESS)) {
2287                 get_u32(&value, ACER_CAP_BRIGHTNESS);
2288                 data->brightness = value;
2289         }
2290
2291         return 0;
2292 }
2293
2294 static int acer_resume(struct device *dev)
2295 {
2296         struct acer_data *data = &interface->data;
2297
2298         if (!data)
2299                 return -ENOMEM;
2300
2301         if (has_cap(ACER_CAP_MAILLED))
2302                 set_u32(data->mailled, ACER_CAP_MAILLED);
2303
2304         if (has_cap(ACER_CAP_BRIGHTNESS))
2305                 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2306
2307         if (acer_wmi_accel_dev)
2308                 acer_gsensor_init();
2309
2310         return 0;
2311 }
2312 #else
2313 #define acer_suspend    NULL
2314 #define acer_resume     NULL
2315 #endif
2316
2317 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2318
2319 static void acer_platform_shutdown(struct platform_device *device)
2320 {
2321         struct acer_data *data = &interface->data;
2322
2323         if (!data)
2324                 return;
2325
2326         if (has_cap(ACER_CAP_MAILLED))
2327                 set_u32(LED_OFF, ACER_CAP_MAILLED);
2328 }
2329
2330 static struct platform_driver acer_platform_driver = {
2331         .driver = {
2332                 .name = "acer-wmi",
2333                 .pm = &acer_pm,
2334         },
2335         .probe = acer_platform_probe,
2336         .remove_new = acer_platform_remove,
2337         .shutdown = acer_platform_shutdown,
2338 };
2339
2340 static struct platform_device *acer_platform_device;
2341
2342 static void remove_debugfs(void)
2343 {
2344         debugfs_remove_recursive(interface->debug.root);
2345 }
2346
2347 static void __init create_debugfs(void)
2348 {
2349         interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2350
2351         debugfs_create_u32("devices", S_IRUGO, interface->debug.root,
2352                            &interface->debug.wmid_devices);
2353 }
2354
2355 static int __init acer_wmi_init(void)
2356 {
2357         int err;
2358
2359         pr_info("Acer Laptop ACPI-WMI Extras\n");
2360
2361         if (dmi_check_system(acer_blacklist)) {
2362                 pr_info("Blacklisted hardware detected - not loading\n");
2363                 return -ENODEV;
2364         }
2365
2366         find_quirks();
2367
2368         /*
2369          * The AMW0_GUID1 wmi is not only found on Acer family but also other
2370          * machines like Lenovo, Fujitsu and Medion. In the past days,
2371          * acer-wmi driver handled those non-Acer machines by quirks list.
2372          * But actually acer-wmi driver was loaded on any machines that have
2373          * AMW0_GUID1. This behavior is strange because those machines should
2374          * be supported by appropriate wmi drivers. e.g. fujitsu-laptop,
2375          * ideapad-laptop. So, here checks the machine that has AMW0_GUID1
2376          * should be in Acer/Gateway/Packard Bell white list, or it's already
2377          * in the past quirk list.
2378          */
2379         if (wmi_has_guid(AMW0_GUID1) &&
2380             !dmi_check_system(amw0_whitelist) &&
2381             quirks == &quirk_unknown) {
2382                 pr_debug("Unsupported machine has AMW0_GUID1, unable to load\n");
2383                 return -ENODEV;
2384         }
2385
2386         /*
2387          * Detect which ACPI-WMI interface we're using.
2388          */
2389         if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2390                 interface = &AMW0_V2_interface;
2391
2392         if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2393                 interface = &wmid_interface;
2394
2395         if (wmi_has_guid(WMID_GUID3))
2396                 interface = &wmid_v2_interface;
2397
2398         if (interface)
2399                 dmi_walk(type_aa_dmi_decode, NULL);
2400
2401         if (wmi_has_guid(WMID_GUID2) && interface) {
2402                 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2403                         pr_err("Unable to detect available WMID devices\n");
2404                         return -ENODEV;
2405                 }
2406                 /* WMID always provides brightness methods */
2407                 interface->capability |= ACER_CAP_BRIGHTNESS;
2408         } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa && force_caps == -1) {
2409                 pr_err("No WMID device detection method found\n");
2410                 return -ENODEV;
2411         }
2412
2413         if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2414                 interface = &AMW0_interface;
2415
2416                 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2417                         pr_err("Unable to detect available AMW0 devices\n");
2418                         return -ENODEV;
2419                 }
2420         }
2421
2422         if (wmi_has_guid(AMW0_GUID1))
2423                 AMW0_find_mailled();
2424
2425         if (!interface) {
2426                 pr_err("No or unsupported WMI interface, unable to load\n");
2427                 return -ENODEV;
2428         }
2429
2430         set_quirks();
2431
2432         if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2433                 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2434
2435         if (wmi_has_guid(WMID_GUID3))
2436                 interface->capability |= ACER_CAP_SET_FUNCTION_MODE;
2437
2438         if (force_caps != -1)
2439                 interface->capability = force_caps;
2440
2441         if (wmi_has_guid(WMID_GUID3) &&
2442             (interface->capability & ACER_CAP_SET_FUNCTION_MODE)) {
2443                 if (ACPI_FAILURE(acer_wmi_enable_rf_button()))
2444                         pr_warn("Cannot enable RF Button Driver\n");
2445
2446                 if (ec_raw_mode) {
2447                         if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2448                                 pr_err("Cannot enable EC raw mode\n");
2449                                 return -ENODEV;
2450                         }
2451                 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2452                         pr_err("Cannot enable Launch Manager mode\n");
2453                         return -ENODEV;
2454                 }
2455         } else if (ec_raw_mode) {
2456                 pr_info("No WMID EC raw mode enable method\n");
2457         }
2458
2459         if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2460                 err = acer_wmi_input_setup();
2461                 if (err)
2462                         return err;
2463                 err = acer_wmi_accel_setup();
2464                 if (err && err != -ENODEV)
2465                         pr_warn("Cannot enable accelerometer\n");
2466         }
2467
2468         err = platform_driver_register(&acer_platform_driver);
2469         if (err) {
2470                 pr_err("Unable to register platform driver\n");
2471                 goto error_platform_register;
2472         }
2473
2474         acer_platform_device = platform_device_alloc("acer-wmi", PLATFORM_DEVID_NONE);
2475         if (!acer_platform_device) {
2476                 err = -ENOMEM;
2477                 goto error_device_alloc;
2478         }
2479
2480         err = platform_device_add(acer_platform_device);
2481         if (err)
2482                 goto error_device_add;
2483
2484         if (wmi_has_guid(WMID_GUID2)) {
2485                 interface->debug.wmid_devices = get_wmid_devices();
2486                 create_debugfs();
2487         }
2488
2489         /* Override any initial settings with values from the commandline */
2490         acer_commandline_init();
2491
2492         return 0;
2493
2494 error_device_add:
2495         platform_device_put(acer_platform_device);
2496 error_device_alloc:
2497         platform_driver_unregister(&acer_platform_driver);
2498 error_platform_register:
2499         if (wmi_has_guid(ACERWMID_EVENT_GUID))
2500                 acer_wmi_input_destroy();
2501         if (acer_wmi_accel_dev)
2502                 input_unregister_device(acer_wmi_accel_dev);
2503
2504         return err;
2505 }
2506
2507 static void __exit acer_wmi_exit(void)
2508 {
2509         if (wmi_has_guid(ACERWMID_EVENT_GUID))
2510                 acer_wmi_input_destroy();
2511
2512         if (acer_wmi_accel_dev)
2513                 input_unregister_device(acer_wmi_accel_dev);
2514
2515         remove_debugfs();
2516         platform_device_unregister(acer_platform_device);
2517         platform_driver_unregister(&acer_platform_driver);
2518
2519         pr_info("Acer Laptop WMI Extras unloaded\n");
2520         return;
2521 }
2522
2523 module_init(acer_wmi_init);
2524 module_exit(acer_wmi_exit);