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 /*
  64  * Acer ACPI method GUIDs
  65  */
  66 #define AMW0_GUID1              "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
  67 #define AMW0_GUID2              "431F16ED-0C2B-444C-B267-27DEB140CF9C"
  68 #define WMID_GUID1              "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"
  69 #define WMID_GUID2              "95764E09-FB56-4E83-B31A-37761F60994A"
  70 #define WMID_GUID3              "61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
  71
  72 /*
  73  * Acer ACPI event GUIDs
  74  */
  75 #define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
  76
  77 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
  78 MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
  79 MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
  80
  81 enum acer_wmi_event_ids {
  82         WMID_HOTKEY_EVENT = 0x1,
  83         WMID_ACCEL_OR_KBD_DOCK_EVENT = 0x5,
  84 };
  85
  86 static const struct key_entry acer_wmi_keymap[] __initconst = {
  87         {KE_KEY, 0x01, {KEY_WLAN} },     /* WiFi */
  88         {KE_KEY, 0x03, {KEY_WLAN} },     /* WiFi */
  89         {KE_KEY, 0x04, {KEY_WLAN} },     /* WiFi */
  90         {KE_KEY, 0x12, {KEY_BLUETOOTH} },       /* BT */
  91         {KE_KEY, 0x21, {KEY_PROG1} },    /* Backup */
  92         {KE_KEY, 0x22, {KEY_PROG2} },    /* Arcade */
  93         {KE_KEY, 0x23, {KEY_PROG3} },    /* P_Key */
  94         {KE_KEY, 0x24, {KEY_PROG4} },    /* Social networking_Key */
  95         {KE_KEY, 0x29, {KEY_PROG3} },    /* P_Key for TM8372 */
  96         {KE_IGNORE, 0x41, {KEY_MUTE} },
  97         {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
  98         {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} },
  99         {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
 100         {KE_IGNORE, 0x4e, {KEY_NEXTSONG} },
 101         {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
 102         {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} },
 103         {KE_IGNORE, 0x45, {KEY_STOP} },
 104         {KE_IGNORE, 0x50, {KEY_STOP} },
 105         {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
 106         {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
 107         {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
 108         {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} },
 109         {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
 110         {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
 111         {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
 112         {KE_IGNORE, 0x81, {KEY_SLEEP} },
 113         {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
 114         {KE_IGNORE, 0x84, {KEY_KBDILLUMTOGGLE} }, /* Automatic Keyboard background light toggle */
 115         {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
 116         {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
 117         {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
 118         {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} },
 119         {KE_KEY, 0x86, {KEY_WLAN} },
 120         {KE_KEY, 0x87, {KEY_POWER} },
 121         {KE_END, 0}
 122 };
 123
 124 static struct input_dev *acer_wmi_input_dev;
 125 static struct input_dev *acer_wmi_accel_dev;
 126
 127 struct event_return_value {
 128         u8 function;
 129         u8 key_num;
 130         u16 device_state;
 131         u16 reserved1;
 132         u8 kbd_dock_state;
 133         u8 reserved2;
 134 } __attribute__((packed));
 135
 136 /*
 137  * GUID3 Get Device Status device flags
 138  */
 139 #define ACER_WMID3_GDS_WIRELESS         (1<<0)  /* WiFi */
 140 #define ACER_WMID3_GDS_THREEG           (1<<6)  /* 3G */
 141 #define ACER_WMID3_GDS_WIMAX            (1<<7)  /* WiMAX */
 142 #define ACER_WMID3_GDS_BLUETOOTH        (1<<11) /* BT */
 143 #define ACER_WMID3_GDS_RFBTN            (1<<14) /* RF Button */
 144
 145 #define ACER_WMID3_GDS_TOUCHPAD         (1<<1)  /* Touchpad */
 146
 147 /* Hotkey Customized Setting and Acer Application Status.
 148  * Set Device Default Value and Report Acer Application Status.
 149  * When Acer Application starts, it will run this method to inform
 150  * BIOS/EC that Acer Application is on.
 151  * App Status
 152  *      Bit[0]: Launch Manager Status
 153  *      Bit[1]: ePM Status
 154  *      Bit[2]: Device Control Status
 155  *      Bit[3]: Acer Power Button Utility Status
 156  *      Bit[4]: RF Button Status
 157  *      Bit[5]: ODD PM Status
 158  *      Bit[6]: Device Default Value Control
 159  *      Bit[7]: Hall Sensor Application Status
 160  */
 161 struct func_input_params {
 162         u8 function_num;        /* Function Number */
 163         u16 commun_devices;     /* Communication type devices default status */
 164         u16 devices;            /* Other type devices default status */
 165         u8 app_status;          /* Acer Device Status. LM, ePM, RF Button... */
 166         u8 app_mask;            /* Bit mask to app_status */
 167         u8 reserved;
 168 } __attribute__((packed));
 169
 170 struct func_return_value {
 171         u8 error_code;          /* Error Code */
 172         u8 ec_return_value;     /* EC Return Value */
 173         u16 reserved;
 174 } __attribute__((packed));
 175
 176 struct wmid3_gds_set_input_param {     /* Set Device Status input parameter */
 177         u8 function_num;        /* Function Number */
 178         u8 hotkey_number;       /* Hotkey Number */
 179         u16 devices;            /* Set Device */
 180         u8 volume_value;        /* Volume Value */
 181 } __attribute__((packed));
 182
 183 struct wmid3_gds_get_input_param {     /* Get Device Status input parameter */
 184         u8 function_num;        /* Function Number */
 185         u8 hotkey_number;       /* Hotkey Number */
 186         u16 devices;            /* Get Device */
 187 } __attribute__((packed));
 188
 189 struct wmid3_gds_return_value { /* Get Device Status return value*/
 190         u8 error_code;          /* Error Code */
 191         u8 ec_return_value;     /* EC Return Value */
 192         u16 devices;            /* Current Device Status */
 193         u32 reserved;
 194 } __attribute__((packed));
 195
 196 struct hotkey_function_type_aa {
 197         u8 type;
 198         u8 length;
 199         u16 handle;
 200         u16 commun_func_bitmap;
 201         u16 application_func_bitmap;
 202         u16 media_func_bitmap;
 203         u16 display_func_bitmap;
 204         u16 others_func_bitmap;
 205         u8 commun_fn_key_number;
 206 } __attribute__((packed));
 207
 208 /*
 209  * Interface capability flags
 210  */
 211 #define ACER_CAP_MAILLED                BIT(0)
 212 #define ACER_CAP_WIRELESS               BIT(1)
 213 #define ACER_CAP_BLUETOOTH              BIT(2)
 214 #define ACER_CAP_BRIGHTNESS             BIT(3)
 215 #define ACER_CAP_THREEG                 BIT(4)
 216 #define ACER_CAP_SET_FUNCTION_MODE      BIT(5)
 217 #define ACER_CAP_KBD_DOCK               BIT(6)
 218
 219 /*
 220  * Interface type flags
 221  */
 222 enum interface_flags {
 223         ACER_AMW0,
 224         ACER_AMW0_V2,
 225         ACER_WMID,
 226         ACER_WMID_v2,
 227 };
 228
 229 #define ACER_DEFAULT_WIRELESS  0
 230 #define ACER_DEFAULT_BLUETOOTH 0
 231 #define ACER_DEFAULT_MAILLED   0
 232 #define ACER_DEFAULT_THREEG    0
 233
 234 static int max_brightness = 0xF;
 235
 236 static int mailled = -1;
 237 static int brightness = -1;
 238 static int threeg = -1;
 239 static int force_series;
 240 static int force_caps = -1;
 241 static bool ec_raw_mode;
 242 static bool has_type_aa;
 243 static u16 commun_func_bitmap;
 244 static u8 commun_fn_key_number;
 245
 246 module_param(mailled, int, 0444);
 247 module_param(brightness, int, 0444);
 248 module_param(threeg, int, 0444);
 249 module_param(force_series, int, 0444);
 250 module_param(force_caps, int, 0444);
 251 module_param(ec_raw_mode, bool, 0444);
 252 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
 253 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
 254 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
 255 MODULE_PARM_DESC(force_series, "Force a different laptop series");
 256 MODULE_PARM_DESC(force_caps, "Force the capability bitmask to this value");
 257 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
 258
 259 struct acer_data {
 260         int mailled;
 261         int threeg;
 262         int brightness;
 263 };
 264
 265 struct acer_debug {
 266         struct dentry *root;
 267         u32 wmid_devices;
 268 };
 269
 270 static struct rfkill *wireless_rfkill;
 271 static struct rfkill *bluetooth_rfkill;
 272 static struct rfkill *threeg_rfkill;
 273 static bool rfkill_inited;
 274
 275 /* Each low-level interface must define at least some of the following */
 276 struct wmi_interface {
 277         /* The WMI device type */
 278         u32 type;
 279
 280         /* The capabilities this interface provides */
 281         u32 capability;
 282
 283         /* Private data for the current interface */
 284         struct acer_data data;
 285
 286         /* debugfs entries associated with this interface */
 287         struct acer_debug debug;
 288 };
 289
 290 /* The static interface pointer, points to the currently detected interface */
 291 static struct wmi_interface *interface;
 292
 293 /*
 294  * Embedded Controller quirks
 295  * Some laptops require us to directly access the EC to either enable or query
 296  * features that are not available through WMI.
 297  */
 298
 299 struct quirk_entry {
 300         u8 wireless;
 301         u8 mailled;
 302         s8 brightness;
 303         u8 bluetooth;
 304 };
 305
 306 static struct quirk_entry *quirks;
 307
 308 static void __init set_quirks(void)
 309 {
 310         if (quirks->mailled)
 311                 interface->capability |= ACER_CAP_MAILLED;
 312
 313         if (quirks->brightness)
 314                 interface->capability |= ACER_CAP_BRIGHTNESS;
 315 }
 316
 317 static int __init dmi_matched(const struct dmi_system_id *dmi)
 318 {
 319         quirks = dmi->driver_data;
 320         return 1;
 321 }
 322
 323 static int __init set_force_caps(const struct dmi_system_id *dmi)
 324 {
 325         if (force_caps == -1) {
 326                 force_caps = (uintptr_t)dmi->driver_data;
 327                 pr_info("Found %s, set force_caps to 0x%x\n", dmi->ident, force_caps);
 328         }
 329         return 1;
 330 }
 331
 332 static struct quirk_entry quirk_unknown = {
 333 };
 334
 335 static struct quirk_entry quirk_acer_aspire_1520 = {
 336         .brightness = -1,
 337 };
 338
 339 static struct quirk_entry quirk_acer_travelmate_2490 = {
 340         .mailled = 1,
 341 };
 342
 343 /* This AMW0 laptop has no bluetooth */
 344 static struct quirk_entry quirk_medion_md_98300 = {
 345         .wireless = 1,
 346 };
 347
 348 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
 349         .wireless = 2,
 350 };
 351
 352 static struct quirk_entry quirk_lenovo_ideapad_s205 = {
 353         .wireless = 3,
 354 };
 355
 356 /* The Aspire One has a dummy ACPI-WMI interface - disable it */
 357 static const struct dmi_system_id acer_blacklist[] __initconst = {
 358         {
 359                 .ident = "Acer Aspire One (SSD)",
 360                 .matches = {
 361                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 362                         DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
 363                 },
 364         },
 365         {
 366                 .ident = "Acer Aspire One (HDD)",
 367                 .matches = {
 368                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 369                         DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
 370                 },
 371         },
 372         {}
 373 };
 374
 375 static const struct dmi_system_id amw0_whitelist[] __initconst = {
 376         {
 377                 .ident = "Acer",
 378                 .matches = {
 379                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 380                 },
 381         },
 382         {
 383                 .ident = "Gateway",
 384                 .matches = {
 385                         DMI_MATCH(DMI_SYS_VENDOR, "Gateway"),
 386                 },
 387         },
 388         {
 389                 .ident = "Packard Bell",
 390                 .matches = {
 391                         DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"),
 392                 },
 393         },
 394         {}
 395 };
 396
 397 /*
 398  * This quirk table is only for Acer/Gateway/Packard Bell family
 399  * that those machines are supported by acer-wmi driver.
 400  */
 401 static const struct dmi_system_id acer_quirks[] __initconst = {
 402         {
 403                 .callback = dmi_matched,
 404                 .ident = "Acer Aspire 1360",
 405                 .matches = {
 406                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 407                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
 408                 },
 409                 .driver_data = &quirk_acer_aspire_1520,
 410         },
 411         {
 412                 .callback = dmi_matched,
 413                 .ident = "Acer Aspire 1520",
 414                 .matches = {
 415                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 416                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
 417                 },
 418                 .driver_data = &quirk_acer_aspire_1520,
 419         },
 420         {
 421                 .callback = dmi_matched,
 422                 .ident = "Acer Aspire 3100",
 423                 .matches = {
 424                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 425                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
 426                 },
 427                 .driver_data = &quirk_acer_travelmate_2490,
 428         },
 429         {
 430                 .callback = dmi_matched,
 431                 .ident = "Acer Aspire 3610",
 432                 .matches = {
 433                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 434                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
 435                 },
 436                 .driver_data = &quirk_acer_travelmate_2490,
 437         },
 438         {
 439                 .callback = dmi_matched,
 440                 .ident = "Acer Aspire 5100",
 441                 .matches = {
 442                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 443                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
 444                 },
 445                 .driver_data = &quirk_acer_travelmate_2490,
 446         },
 447         {
 448                 .callback = dmi_matched,
 449                 .ident = "Acer Aspire 5610",
 450                 .matches = {
 451                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 452                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
 453                 },
 454                 .driver_data = &quirk_acer_travelmate_2490,
 455         },
 456         {
 457                 .callback = dmi_matched,
 458                 .ident = "Acer Aspire 5630",
 459                 .matches = {
 460                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 461                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
 462                 },
 463                 .driver_data = &quirk_acer_travelmate_2490,
 464         },
 465         {
 466                 .callback = dmi_matched,
 467                 .ident = "Acer Aspire 5650",
 468                 .matches = {
 469                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 470                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
 471                 },
 472                 .driver_data = &quirk_acer_travelmate_2490,
 473         },
 474         {
 475                 .callback = dmi_matched,
 476                 .ident = "Acer Aspire 5680",
 477                 .matches = {
 478                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 479                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
 480                 },
 481                 .driver_data = &quirk_acer_travelmate_2490,
 482         },
 483         {
 484                 .callback = dmi_matched,
 485                 .ident = "Acer Aspire 9110",
 486                 .matches = {
 487                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 488                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
 489                 },
 490                 .driver_data = &quirk_acer_travelmate_2490,
 491         },
 492         {
 493                 .callback = dmi_matched,
 494                 .ident = "Acer TravelMate 2490",
 495                 .matches = {
 496                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 497                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
 498                 },
 499                 .driver_data = &quirk_acer_travelmate_2490,
 500         },
 501         {
 502                 .callback = dmi_matched,
 503                 .ident = "Acer TravelMate 4200",
 504                 .matches = {
 505                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 506                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
 507                 },
 508                 .driver_data = &quirk_acer_travelmate_2490,
 509         },
 510         {
 511                 .callback = set_force_caps,
 512                 .ident = "Acer Aspire Switch 10E SW3-016",
 513                 .matches = {
 514                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 515                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW3-016"),
 516                 },
 517                 .driver_data = (void *)ACER_CAP_KBD_DOCK,
 518         },
 519         {
 520                 .callback = set_force_caps,
 521                 .ident = "Acer Aspire Switch 10 SW5-012",
 522                 .matches = {
 523                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 524                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
 525                 },
 526                 .driver_data = (void *)ACER_CAP_KBD_DOCK,
 527         },
 528         {
 529                 .callback = set_force_caps,
 530                 .ident = "Acer One 10 (S1003)",
 531                 .matches = {
 532                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
 533                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
 534                 },
 535                 .driver_data = (void *)ACER_CAP_KBD_DOCK,
 536         },
 537         {}
 538 };
 539
 540 /*
 541  * This quirk list is for those non-acer machines that have AMW0_GUID1
 542  * but supported by acer-wmi in past days. Keeping this quirk list here
 543  * is only for backward compatible. Please do not add new machine to
 544  * here anymore. Those non-acer machines should be supported by
 545  * appropriate wmi drivers.
 546  */
 547 static const struct dmi_system_id non_acer_quirks[] __initconst = {
 548         {
 549                 .callback = dmi_matched,
 550                 .ident = "Fujitsu Siemens Amilo Li 1718",
 551                 .matches = {
 552                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 553                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
 554                 },
 555                 .driver_data = &quirk_fujitsu_amilo_li_1718,
 556         },
 557         {
 558                 .callback = dmi_matched,
 559                 .ident = "Medion MD 98300",
 560                 .matches = {
 561                         DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
 562                         DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
 563                 },
 564                 .driver_data = &quirk_medion_md_98300,
 565         },
 566         {
 567                 .callback = dmi_matched,
 568                 .ident = "Lenovo Ideapad S205",
 569                 .matches = {
 570                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 571                         DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
 572                 },
 573                 .driver_data = &quirk_lenovo_ideapad_s205,
 574         },
 575         {
 576                 .callback = dmi_matched,
 577                 .ident = "Lenovo Ideapad S205 (Brazos)",
 578                 .matches = {
 579                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 580                         DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
 581                 },
 582                 .driver_data = &quirk_lenovo_ideapad_s205,
 583         },
 584         {
 585                 .callback = dmi_matched,
 586                 .ident = "Lenovo 3000 N200",
 587                 .matches = {
 588                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 589                         DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
 590                 },
 591                 .driver_data = &quirk_fujitsu_amilo_li_1718,
 592         },
 593         {
 594                 .callback = dmi_matched,
 595                 .ident = "Lenovo Ideapad S205-10382JG",
 596                 .matches = {
 597                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 598                         DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
 599                 },
 600                 .driver_data = &quirk_lenovo_ideapad_s205,
 601         },
 602         {
 603                 .callback = dmi_matched,
 604                 .ident = "Lenovo Ideapad S205-1038DPG",
 605                 .matches = {
 606                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 607                         DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
 608                 },
 609                 .driver_data = &quirk_lenovo_ideapad_s205,
 610         },
 611         {}
 612 };
 613
 614 static int __init
 615 video_set_backlight_video_vendor(const struct dmi_system_id *d)
 616 {
 617         interface->capability &= ~ACER_CAP_BRIGHTNESS;
 618         pr_info("Brightness must be controlled by generic video driver\n");
 619         return 0;
 620 }
 621
 622 static const struct dmi_system_id video_vendor_dmi_table[] __initconst = {
 623         {
 624                 .callback = video_set_backlight_video_vendor,
 625                 .ident = "Acer TravelMate 4750",
 626                 .matches = {
 627                         DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
 628                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"),
 629                 },
 630         },
 631         {
 632                 .callback = video_set_backlight_video_vendor,
 633                 .ident = "Acer Extensa 5235",
 634                 .matches = {
 635                         DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
 636                         DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"),
 637                 },
 638         },
 639         {
 640                 .callback = video_set_backlight_video_vendor,
 641                 .ident = "Acer TravelMate 5760",
 642                 .matches = {
 643                         DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
 644                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"),
 645                 },
 646         },
 647         {
 648                 .callback = video_set_backlight_video_vendor,
 649                 .ident = "Acer Aspire 5750",
 650                 .matches = {
 651                         DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
 652                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"),
 653                 },
 654         },
 655         {
 656                 .callback = video_set_backlight_video_vendor,
 657                 .ident = "Acer Aspire 5741",
 658                 .matches = {
 659                         DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
 660                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"),
 661                 },
 662         },
 663         {
 664                 /*
 665                  * Note no video_set_backlight_video_vendor, we must use the
 666                  * acer interface, as there is no native backlight interface.
 667                  */
 668                 .ident = "Acer KAV80",
 669                 .matches = {
 670                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 671                         DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"),
 672                 },
 673         },
 674         {}
 675 };
 676
 677 /* Find which quirks are needed for a particular vendor/ model pair */
 678 static void __init find_quirks(void)
 679 {
 680         if (!force_series) {
 681                 dmi_check_system(acer_quirks);
 682                 dmi_check_system(non_acer_quirks);
 683         } else if (force_series == 2490) {
 684                 quirks = &quirk_acer_travelmate_2490;
 685         }
 686
 687         if (quirks == NULL)
 688                 quirks = &quirk_unknown;
 689 }
 690
 691 /*
 692  * General interface convenience methods
 693  */
 694
 695 static bool has_cap(u32 cap)
 696 {
 697         return interface->capability & cap;
 698 }
 699
 700 /*
 701  * AMW0 (V1) interface
 702  */
 703 struct wmab_args {
 704         u32 eax;
 705         u32 ebx;
 706         u32 ecx;
 707         u32 edx;
 708 };
 709
 710 struct wmab_ret {
 711         u32 eax;
 712         u32 ebx;
 713         u32 ecx;
 714         u32 edx;
 715         u32 eex;
 716 };
 717
 718 static acpi_status wmab_execute(struct wmab_args *regbuf,
 719 struct acpi_buffer *result)
 720 {
 721         struct acpi_buffer input;
 722         acpi_status status;
 723         input.length = sizeof(struct wmab_args);
 724         input.pointer = (u8 *)regbuf;
 725
 726         status = wmi_evaluate_method(AMW0_GUID1, 0, 1, &input, result);
 727
 728         return status;
 729 }
 730
 731 static acpi_status AMW0_get_u32(u32 *value, u32 cap)
 732 {
 733         int err;
 734         u8 result;
 735
 736         switch (cap) {
 737         case ACER_CAP_MAILLED:
 738                 switch (quirks->mailled) {
 739                 default:
 740                         err = ec_read(0xA, &result);
 741                         if (err)
 742                                 return AE_ERROR;
 743                         *value = (result >> 7) & 0x1;
 744                         return AE_OK;
 745                 }
 746                 break;
 747         case ACER_CAP_WIRELESS:
 748                 switch (quirks->wireless) {
 749                 case 1:
 750                         err = ec_read(0x7B, &result);
 751                         if (err)
 752                                 return AE_ERROR;
 753                         *value = result & 0x1;
 754                         return AE_OK;
 755                 case 2:
 756                         err = ec_read(0x71, &result);
 757                         if (err)
 758                                 return AE_ERROR;
 759                         *value = result & 0x1;
 760                         return AE_OK;
 761                 case 3:
 762                         err = ec_read(0x78, &result);
 763                         if (err)
 764                                 return AE_ERROR;
 765                         *value = result & 0x1;
 766                         return AE_OK;
 767                 default:
 768                         err = ec_read(0xA, &result);
 769                         if (err)
 770                                 return AE_ERROR;
 771                         *value = (result >> 2) & 0x1;
 772                         return AE_OK;
 773                 }
 774                 break;
 775         case ACER_CAP_BLUETOOTH:
 776                 switch (quirks->bluetooth) {
 777                 default:
 778                         err = ec_read(0xA, &result);
 779                         if (err)
 780                                 return AE_ERROR;
 781                         *value = (result >> 4) & 0x1;
 782                         return AE_OK;
 783                 }
 784                 break;
 785         case ACER_CAP_BRIGHTNESS:
 786                 switch (quirks->brightness) {
 787                 default:
 788                         err = ec_read(0x83, &result);
 789                         if (err)
 790                                 return AE_ERROR;
 791                         *value = result;
 792                         return AE_OK;
 793                 }
 794                 break;
 795         default:
 796                 return AE_ERROR;
 797         }
 798         return AE_OK;
 799 }
 800
 801 static acpi_status AMW0_set_u32(u32 value, u32 cap)
 802 {
 803         struct wmab_args args;
 804
 805         args.eax = ACER_AMW0_WRITE;
 806         args.ebx = value ? (1<<8) : 0;
 807         args.ecx = args.edx = 0;
 808
 809         switch (cap) {
 810         case ACER_CAP_MAILLED:
 811                 if (value > 1)
 812                         return AE_BAD_PARAMETER;
 813                 args.ebx |= ACER_AMW0_MAILLED_MASK;
 814                 break;
 815         case ACER_CAP_WIRELESS:
 816                 if (value > 1)
 817                         return AE_BAD_PARAMETER;
 818                 args.ebx |= ACER_AMW0_WIRELESS_MASK;
 819                 break;
 820         case ACER_CAP_BLUETOOTH:
 821                 if (value > 1)
 822                         return AE_BAD_PARAMETER;
 823                 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
 824                 break;
 825         case ACER_CAP_BRIGHTNESS:
 826                 if (value > max_brightness)
 827                         return AE_BAD_PARAMETER;
 828                 switch (quirks->brightness) {
 829                 default:
 830                         return ec_write(0x83, value);
 831                 }
 832         default:
 833                 return AE_ERROR;
 834         }
 835
 836         /* Actually do the set */
 837         return wmab_execute(&args, NULL);
 838 }
 839
 840 static acpi_status __init AMW0_find_mailled(void)
 841 {
 842         struct wmab_args args;
 843         struct wmab_ret ret;
 844         acpi_status status = AE_OK;
 845         struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
 846         union acpi_object *obj;
 847
 848         args.eax = 0x86;
 849         args.ebx = args.ecx = args.edx = 0;
 850
 851         status = wmab_execute(&args, &out);
 852         if (ACPI_FAILURE(status))
 853                 return status;
 854
 855         obj = (union acpi_object *) out.pointer;
 856         if (obj && obj->type == ACPI_TYPE_BUFFER &&
 857         obj->buffer.length == sizeof(struct wmab_ret)) {
 858                 ret = *((struct wmab_ret *) obj->buffer.pointer);
 859         } else {
 860                 kfree(out.pointer);
 861                 return AE_ERROR;
 862         }
 863
 864         if (ret.eex & 0x1)
 865                 interface->capability |= ACER_CAP_MAILLED;
 866
 867         kfree(out.pointer);
 868
 869         return AE_OK;
 870 }
 871
 872 static const struct acpi_device_id norfkill_ids[] __initconst = {
 873         { "VPC2004", 0},
 874         { "IBM0068", 0},
 875         { "LEN0068", 0},
 876         { "SNY5001", 0},        /* sony-laptop in charge */
 877         { "HPQ6601", 0},
 878         { "", 0},
 879 };
 880
 881 static int __init AMW0_set_cap_acpi_check_device(void)
 882 {
 883         const struct acpi_device_id *id;
 884
 885         for (id = norfkill_ids; id->id[0]; id++)
 886                 if (acpi_dev_found(id->id))
 887                         return true;
 888
 889         return false;
 890 }
 891
 892 static acpi_status __init AMW0_set_capabilities(void)
 893 {
 894         struct wmab_args args;
 895         struct wmab_ret ret;
 896         acpi_status status;
 897         struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
 898         union acpi_object *obj;
 899
 900         /*
 901          * On laptops with this strange GUID (non Acer), normal probing doesn't
 902          * work.
 903          */
 904         if (wmi_has_guid(AMW0_GUID2)) {
 905                 if ((quirks != &quirk_unknown) ||
 906                     !AMW0_set_cap_acpi_check_device())
 907                         interface->capability |= ACER_CAP_WIRELESS;
 908                 return AE_OK;
 909         }
 910
 911         args.eax = ACER_AMW0_WRITE;
 912         args.ecx = args.edx = 0;
 913
 914         args.ebx = 0xa2 << 8;
 915         args.ebx |= ACER_AMW0_WIRELESS_MASK;
 916
 917         status = wmab_execute(&args, &out);
 918         if (ACPI_FAILURE(status))
 919                 return status;
 920
 921         obj = out.pointer;
 922         if (obj && obj->type == ACPI_TYPE_BUFFER &&
 923         obj->buffer.length == sizeof(struct wmab_ret)) {
 924                 ret = *((struct wmab_ret *) obj->buffer.pointer);
 925         } else {
 926                 status = AE_ERROR;
 927                 goto out;
 928         }
 929
 930         if (ret.eax & 0x1)
 931                 interface->capability |= ACER_CAP_WIRELESS;
 932
 933         args.ebx = 2 << 8;
 934         args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
 935
 936         /*
 937          * It's ok to use existing buffer for next wmab_execute call.
 938          * But we need to kfree(out.pointer) if next wmab_execute fail.
 939          */
 940         status = wmab_execute(&args, &out);
 941         if (ACPI_FAILURE(status))
 942                 goto out;
 943
 944         obj = (union acpi_object *) out.pointer;
 945         if (obj && obj->type == ACPI_TYPE_BUFFER
 946         && obj->buffer.length == sizeof(struct wmab_ret)) {
 947                 ret = *((struct wmab_ret *) obj->buffer.pointer);
 948         } else {
 949                 status = AE_ERROR;
 950                 goto out;
 951         }
 952
 953         if (ret.eax & 0x1)
 954                 interface->capability |= ACER_CAP_BLUETOOTH;
 955
 956         /*
 957          * This appears to be safe to enable, since all Wistron based laptops
 958          * appear to use the same EC register for brightness, even if they
 959          * differ for wireless, etc
 960          */
 961         if (quirks->brightness >= 0)
 962                 interface->capability |= ACER_CAP_BRIGHTNESS;
 963
 964         status = AE_OK;
 965 out:
 966         kfree(out.pointer);
 967         return status;
 968 }
 969
 970 static struct wmi_interface AMW0_interface = {
 971         .type = ACER_AMW0,
 972 };
 973
 974 static struct wmi_interface AMW0_V2_interface = {
 975         .type = ACER_AMW0_V2,
 976 };
 977
 978 /*
 979  * New interface (The WMID interface)
 980  */
 981 static acpi_status
 982 WMI_execute_u32(u32 method_id, u32 in, u32 *out)
 983 {
 984         struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
 985         struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
 986         union acpi_object *obj;
 987         u32 tmp = 0;
 988         acpi_status status;
 989
 990         status = wmi_evaluate_method(WMID_GUID1, 0, method_id, &input, &result);
 991
 992         if (ACPI_FAILURE(status))
 993                 return status;
 994
 995         obj = (union acpi_object *) result.pointer;
 996         if (obj) {
 997                 if (obj->type == ACPI_TYPE_BUFFER &&
 998                         (obj->buffer.length == sizeof(u32) ||
 999                         obj->buffer.length == sizeof(u64))) {
1000                         tmp = *((u32 *) obj->buffer.pointer);
1001                 } else if (obj->type == ACPI_TYPE_INTEGER) {
1002                         tmp = (u32) obj->integer.value;
1003                 }
1004         }
1005
1006         if (out)
1007                 *out = tmp;
1008
1009         kfree(result.pointer);
1010
1011         return status;
1012 }
1013
1014 static acpi_status WMID_get_u32(u32 *value, u32 cap)
1015 {
1016         acpi_status status;
1017         u8 tmp;
1018         u32 result, method_id = 0;
1019
1020         switch (cap) {
1021         case ACER_CAP_WIRELESS:
1022                 method_id = ACER_WMID_GET_WIRELESS_METHODID;
1023                 break;
1024         case ACER_CAP_BLUETOOTH:
1025                 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
1026                 break;
1027         case ACER_CAP_BRIGHTNESS:
1028                 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
1029                 break;
1030         case ACER_CAP_THREEG:
1031                 method_id = ACER_WMID_GET_THREEG_METHODID;
1032                 break;
1033         case ACER_CAP_MAILLED:
1034                 if (quirks->mailled == 1) {
1035                         ec_read(0x9f, &tmp);
1036                         *value = tmp & 0x1;
1037                         return 0;
1038                 }
1039                 fallthrough;
1040         default:
1041                 return AE_ERROR;
1042         }
1043         status = WMI_execute_u32(method_id, 0, &result);
1044
1045         if (ACPI_SUCCESS(status))
1046                 *value = (u8)result;
1047
1048         return status;
1049 }
1050
1051 static acpi_status WMID_set_u32(u32 value, u32 cap)
1052 {
1053         u32 method_id = 0;
1054         char param;
1055
1056         switch (cap) {
1057         case ACER_CAP_BRIGHTNESS:
1058                 if (value > max_brightness)
1059                         return AE_BAD_PARAMETER;
1060                 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
1061                 break;
1062         case ACER_CAP_WIRELESS:
1063                 if (value > 1)
1064                         return AE_BAD_PARAMETER;
1065                 method_id = ACER_WMID_SET_WIRELESS_METHODID;
1066                 break;
1067         case ACER_CAP_BLUETOOTH:
1068                 if (value > 1)
1069                         return AE_BAD_PARAMETER;
1070                 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
1071                 break;
1072         case ACER_CAP_THREEG:
1073                 if (value > 1)
1074                         return AE_BAD_PARAMETER;
1075                 method_id = ACER_WMID_SET_THREEG_METHODID;
1076                 break;
1077         case ACER_CAP_MAILLED:
1078                 if (value > 1)
1079                         return AE_BAD_PARAMETER;
1080                 if (quirks->mailled == 1) {
1081                         param = value ? 0x92 : 0x93;
1082                         i8042_lock_chip();
1083                         i8042_command(&param, 0x1059);
1084                         i8042_unlock_chip();
1085                         return 0;
1086                 }
1087                 break;
1088         default:
1089                 return AE_ERROR;
1090         }
1091         return WMI_execute_u32(method_id, (u32)value, NULL);
1092 }
1093
1094 static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1095 {
1096         struct wmid3_gds_return_value return_value;
1097         acpi_status status;
1098         union acpi_object *obj;
1099         struct wmid3_gds_get_input_param params = {
1100                 .function_num = 0x1,
1101                 .hotkey_number = commun_fn_key_number,
1102                 .devices = device,
1103         };
1104         struct acpi_buffer input = {
1105                 sizeof(struct wmid3_gds_get_input_param),
1106                 &params
1107         };
1108         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1109
1110         status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1111         if (ACPI_FAILURE(status))
1112                 return status;
1113
1114         obj = output.pointer;
1115
1116         if (!obj)
1117                 return AE_ERROR;
1118         else if (obj->type != ACPI_TYPE_BUFFER) {
1119                 kfree(obj);
1120                 return AE_ERROR;
1121         }
1122         if (obj->buffer.length != 8) {
1123                 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1124                 kfree(obj);
1125                 return AE_ERROR;
1126         }
1127
1128         return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1129         kfree(obj);
1130
1131         if (return_value.error_code || return_value.ec_return_value)
1132                 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1133                         device,
1134                         return_value.error_code,
1135                         return_value.ec_return_value);
1136         else
1137                 *value = !!(return_value.devices & device);
1138
1139         return status;
1140 }
1141
1142 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1143 {
1144         u16 device;
1145
1146         switch (cap) {
1147         case ACER_CAP_WIRELESS:
1148                 device = ACER_WMID3_GDS_WIRELESS;
1149                 break;
1150         case ACER_CAP_BLUETOOTH:
1151                 device = ACER_WMID3_GDS_BLUETOOTH;
1152                 break;
1153         case ACER_CAP_THREEG:
1154                 device = ACER_WMID3_GDS_THREEG;
1155                 break;
1156         default:
1157                 return AE_ERROR;
1158         }
1159         return wmid3_get_device_status(value, device);
1160 }
1161
1162 static acpi_status wmid3_set_device_status(u32 value, u16 device)
1163 {
1164         struct wmid3_gds_return_value return_value;
1165         acpi_status status;
1166         union acpi_object *obj;
1167         u16 devices;
1168         struct wmid3_gds_get_input_param get_params = {
1169                 .function_num = 0x1,
1170                 .hotkey_number = commun_fn_key_number,
1171                 .devices = commun_func_bitmap,
1172         };
1173         struct acpi_buffer get_input = {
1174                 sizeof(struct wmid3_gds_get_input_param),
1175                 &get_params
1176         };
1177         struct wmid3_gds_set_input_param set_params = {
1178                 .function_num = 0x2,
1179                 .hotkey_number = commun_fn_key_number,
1180                 .devices = commun_func_bitmap,
1181         };
1182         struct acpi_buffer set_input = {
1183                 sizeof(struct wmid3_gds_set_input_param),
1184                 &set_params
1185         };
1186         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1187         struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1188
1189         status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1190         if (ACPI_FAILURE(status))
1191                 return status;
1192
1193         obj = output.pointer;
1194
1195         if (!obj)
1196                 return AE_ERROR;
1197         else if (obj->type != ACPI_TYPE_BUFFER) {
1198                 kfree(obj);
1199                 return AE_ERROR;
1200         }
1201         if (obj->buffer.length != 8) {
1202                 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1203                 kfree(obj);
1204                 return AE_ERROR;
1205         }
1206
1207         return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1208         kfree(obj);
1209
1210         if (return_value.error_code || return_value.ec_return_value) {
1211                 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1212                         return_value.error_code,
1213                         return_value.ec_return_value);
1214                 return status;
1215         }
1216
1217         devices = return_value.devices;
1218         set_params.devices = (value) ? (devices | device) : (devices & ~device);
1219
1220         status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1221         if (ACPI_FAILURE(status))
1222                 return status;
1223
1224         obj = output2.pointer;
1225
1226         if (!obj)
1227                 return AE_ERROR;
1228         else if (obj->type != ACPI_TYPE_BUFFER) {
1229                 kfree(obj);
1230                 return AE_ERROR;
1231         }
1232         if (obj->buffer.length != 4) {
1233                 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1234                 kfree(obj);
1235                 return AE_ERROR;
1236         }
1237
1238         return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1239         kfree(obj);
1240
1241         if (return_value.error_code || return_value.ec_return_value)
1242                 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1243                         return_value.error_code,
1244                         return_value.ec_return_value);
1245
1246         return status;
1247 }
1248
1249 static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1250 {
1251         u16 device;
1252
1253         switch (cap) {
1254         case ACER_CAP_WIRELESS:
1255                 device = ACER_WMID3_GDS_WIRELESS;
1256                 break;
1257         case ACER_CAP_BLUETOOTH:
1258                 device = ACER_WMID3_GDS_BLUETOOTH;
1259                 break;
1260         case ACER_CAP_THREEG:
1261                 device = ACER_WMID3_GDS_THREEG;
1262                 break;
1263         default:
1264                 return AE_ERROR;
1265         }
1266         return wmid3_set_device_status(value, device);
1267 }
1268
1269 static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
1270 {
1271         struct hotkey_function_type_aa *type_aa;
1272
1273         /* We are looking for OEM-specific Type AAh */
1274         if (header->type != 0xAA)
1275                 return;
1276
1277         has_type_aa = true;
1278         type_aa = (struct hotkey_function_type_aa *) header;
1279
1280         pr_info("Function bitmap for Communication Button: 0x%x\n",
1281                 type_aa->commun_func_bitmap);
1282         commun_func_bitmap = type_aa->commun_func_bitmap;
1283
1284         if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1285                 interface->capability |= ACER_CAP_WIRELESS;
1286         if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1287                 interface->capability |= ACER_CAP_THREEG;
1288         if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1289                 interface->capability |= ACER_CAP_BLUETOOTH;
1290         if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_RFBTN)
1291                 commun_func_bitmap &= ~ACER_WMID3_GDS_RFBTN;
1292
1293         commun_fn_key_number = type_aa->commun_fn_key_number;
1294 }
1295
1296 static acpi_status __init WMID_set_capabilities(void)
1297 {
1298         struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1299         union acpi_object *obj;
1300         acpi_status status;
1301         u32 devices;
1302
1303         status = wmi_query_block(WMID_GUID2, 0, &out);
1304         if (ACPI_FAILURE(status))
1305                 return status;
1306
1307         obj = (union acpi_object *) out.pointer;
1308         if (obj) {
1309                 if (obj->type == ACPI_TYPE_BUFFER &&
1310                         (obj->buffer.length == sizeof(u32) ||
1311                         obj->buffer.length == sizeof(u64))) {
1312                         devices = *((u32 *) obj->buffer.pointer);
1313                 } else if (obj->type == ACPI_TYPE_INTEGER) {
1314                         devices = (u32) obj->integer.value;
1315                 } else {
1316                         kfree(out.pointer);
1317                         return AE_ERROR;
1318                 }
1319         } else {
1320                 kfree(out.pointer);
1321                 return AE_ERROR;
1322         }
1323
1324         pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1325         if (devices & 0x07)
1326                 interface->capability |= ACER_CAP_WIRELESS;
1327         if (devices & 0x40)
1328                 interface->capability |= ACER_CAP_THREEG;
1329         if (devices & 0x10)
1330                 interface->capability |= ACER_CAP_BLUETOOTH;
1331
1332         if (!(devices & 0x20))
1333                 max_brightness = 0x9;
1334
1335         kfree(out.pointer);
1336         return status;
1337 }
1338
1339 static struct wmi_interface wmid_interface = {
1340         .type = ACER_WMID,
1341 };
1342
1343 static struct wmi_interface wmid_v2_interface = {
1344         .type = ACER_WMID_v2,
1345 };
1346
1347 /*
1348  * Generic Device (interface-independent)
1349  */
1350
1351 static acpi_status get_u32(u32 *value, u32 cap)
1352 {
1353         acpi_status status = AE_ERROR;
1354
1355         switch (interface->type) {
1356         case ACER_AMW0:
1357                 status = AMW0_get_u32(value, cap);
1358                 break;
1359         case ACER_AMW0_V2:
1360                 if (cap == ACER_CAP_MAILLED) {
1361                         status = AMW0_get_u32(value, cap);
1362                         break;
1363                 }
1364                 fallthrough;
1365         case ACER_WMID:
1366                 status = WMID_get_u32(value, cap);
1367                 break;
1368         case ACER_WMID_v2:
1369                 if (cap & (ACER_CAP_WIRELESS |
1370                            ACER_CAP_BLUETOOTH |
1371                            ACER_CAP_THREEG))
1372                         status = wmid_v2_get_u32(value, cap);
1373                 else if (wmi_has_guid(WMID_GUID2))
1374                         status = WMID_get_u32(value, cap);
1375                 break;
1376         }
1377
1378         return status;
1379 }
1380
1381 static acpi_status set_u32(u32 value, u32 cap)
1382 {
1383         acpi_status status;
1384
1385         if (interface->capability & cap) {
1386                 switch (interface->type) {
1387                 case ACER_AMW0:
1388                         return AMW0_set_u32(value, cap);
1389                 case ACER_AMW0_V2:
1390                         if (cap == ACER_CAP_MAILLED)
1391                                 return AMW0_set_u32(value, cap);
1392
1393                         /*
1394                          * On some models, some WMID methods don't toggle
1395                          * properly. For those cases, we want to run the AMW0
1396                          * method afterwards to be certain we've really toggled
1397                          * the device state.
1398                          */
1399                         if (cap == ACER_CAP_WIRELESS ||
1400                                 cap == ACER_CAP_BLUETOOTH) {
1401                                 status = WMID_set_u32(value, cap);
1402                                 if (ACPI_FAILURE(status))
1403                                         return status;
1404
1405                                 return AMW0_set_u32(value, cap);
1406                         }
1407                         fallthrough;
1408                 case ACER_WMID:
1409                         return WMID_set_u32(value, cap);
1410                 case ACER_WMID_v2:
1411                         if (cap & (ACER_CAP_WIRELESS |
1412                                    ACER_CAP_BLUETOOTH |
1413                                    ACER_CAP_THREEG))
1414                                 return wmid_v2_set_u32(value, cap);
1415                         else if (wmi_has_guid(WMID_GUID2))
1416                                 return WMID_set_u32(value, cap);
1417                         fallthrough;
1418                 default:
1419                         return AE_BAD_PARAMETER;
1420                 }
1421         }
1422         return AE_BAD_PARAMETER;
1423 }
1424
1425 static void __init acer_commandline_init(void)
1426 {
1427         /*
1428          * These will all fail silently if the value given is invalid, or the
1429          * capability isn't available on the given interface
1430          */
1431         if (mailled >= 0)
1432                 set_u32(mailled, ACER_CAP_MAILLED);
1433         if (!has_type_aa && threeg >= 0)
1434                 set_u32(threeg, ACER_CAP_THREEG);
1435         if (brightness >= 0)
1436                 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1437 }
1438
1439 /*
1440  * LED device (Mail LED only, no other LEDs known yet)
1441  */
1442 static void mail_led_set(struct led_classdev *led_cdev,
1443 enum led_brightness value)
1444 {
1445         set_u32(value, ACER_CAP_MAILLED);
1446 }
1447
1448 static struct led_classdev mail_led = {
1449         .name = "acer-wmi::mail",
1450         .brightness_set = mail_led_set,
1451 };
1452
1453 static int acer_led_init(struct device *dev)
1454 {
1455         return led_classdev_register(dev, &mail_led);
1456 }
1457
1458 static void acer_led_exit(void)
1459 {
1460         set_u32(LED_OFF, ACER_CAP_MAILLED);
1461         led_classdev_unregister(&mail_led);
1462 }
1463
1464 /*
1465  * Backlight device
1466  */
1467 static struct backlight_device *acer_backlight_device;
1468
1469 static int read_brightness(struct backlight_device *bd)
1470 {
1471         u32 value;
1472         get_u32(&value, ACER_CAP_BRIGHTNESS);
1473         return value;
1474 }
1475
1476 static int update_bl_status(struct backlight_device *bd)
1477 {
1478         int intensity = bd->props.brightness;
1479
1480         if (bd->props.power != FB_BLANK_UNBLANK)
1481                 intensity = 0;
1482         if (bd->props.fb_blank != FB_BLANK_UNBLANK)
1483                 intensity = 0;
1484
1485         set_u32(intensity, ACER_CAP_BRIGHTNESS);
1486
1487         return 0;
1488 }
1489
1490 static const struct backlight_ops acer_bl_ops = {
1491         .get_brightness = read_brightness,
1492         .update_status = update_bl_status,
1493 };
1494
1495 static int acer_backlight_init(struct device *dev)
1496 {
1497         struct backlight_properties props;
1498         struct backlight_device *bd;
1499
1500         memset(&props, 0, sizeof(struct backlight_properties));
1501         props.type = BACKLIGHT_PLATFORM;
1502         props.max_brightness = max_brightness;
1503         bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1504                                        &props);
1505         if (IS_ERR(bd)) {
1506                 pr_err("Could not register Acer backlight device\n");
1507                 acer_backlight_device = NULL;
1508                 return PTR_ERR(bd);
1509         }
1510
1511         acer_backlight_device = bd;
1512
1513         bd->props.power = FB_BLANK_UNBLANK;
1514         bd->props.brightness = read_brightness(bd);
1515         backlight_update_status(bd);
1516         return 0;
1517 }
1518
1519 static void acer_backlight_exit(void)
1520 {
1521         backlight_device_unregister(acer_backlight_device);
1522 }
1523
1524 /*
1525  * Accelerometer device
1526  */
1527 static acpi_handle gsensor_handle;
1528
1529 static int acer_gsensor_init(void)
1530 {
1531         acpi_status status;
1532         struct acpi_buffer output;
1533         union acpi_object out_obj;
1534
1535         output.length = sizeof(out_obj);
1536         output.pointer = &out_obj;
1537         status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1538         if (ACPI_FAILURE(status))
1539                 return -1;
1540
1541         return 0;
1542 }
1543
1544 static int acer_gsensor_open(struct input_dev *input)
1545 {
1546         return acer_gsensor_init();
1547 }
1548
1549 static int acer_gsensor_event(void)
1550 {
1551         acpi_status status;
1552         struct acpi_buffer output;
1553         union acpi_object out_obj[5];
1554
1555         if (!acer_wmi_accel_dev)
1556                 return -1;
1557
1558         output.length = sizeof(out_obj);
1559         output.pointer = out_obj;
1560
1561         status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1562         if (ACPI_FAILURE(status))
1563                 return -1;
1564
1565         if (out_obj->package.count != 4)
1566                 return -1;
1567
1568         input_report_abs(acer_wmi_accel_dev, ABS_X,
1569                 (s16)out_obj->package.elements[0].integer.value);
1570         input_report_abs(acer_wmi_accel_dev, ABS_Y,
1571                 (s16)out_obj->package.elements[1].integer.value);
1572         input_report_abs(acer_wmi_accel_dev, ABS_Z,
1573                 (s16)out_obj->package.elements[2].integer.value);
1574         input_sync(acer_wmi_accel_dev);
1575         return 0;
1576 }
1577
1578 /*
1579  * Switch series keyboard dock status
1580  */
1581 static int acer_kbd_dock_state_to_sw_tablet_mode(u8 kbd_dock_state)
1582 {
1583         switch (kbd_dock_state) {
1584         case 0x01: /* Docked, traditional clamshell laptop mode */
1585                 return 0;
1586         case 0x04: /* Stand-alone tablet */
1587         case 0x40: /* Docked, tent mode, keyboard not usable */
1588                 return 1;
1589         default:
1590                 pr_warn("Unknown kbd_dock_state 0x%02x\n", kbd_dock_state);
1591         }
1592
1593         return 0;
1594 }
1595
1596 static void acer_kbd_dock_get_initial_state(void)
1597 {
1598         u8 *output, input[8] = { 0x05, 0x00, };
1599         struct acpi_buffer input_buf = { sizeof(input), input };
1600         struct acpi_buffer output_buf = { ACPI_ALLOCATE_BUFFER, NULL };
1601         union acpi_object *obj;
1602         acpi_status status;
1603         int sw_tablet_mode;
1604
1605         status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input_buf, &output_buf);
1606         if (ACPI_FAILURE(status)) {
1607                 pr_err("Error getting keyboard-dock initial status: %s\n",
1608                        acpi_format_exception(status));
1609                 return;
1610         }
1611
1612         obj = output_buf.pointer;
1613         if (!obj || obj->type != ACPI_TYPE_BUFFER || obj->buffer.length != 8) {
1614                 pr_err("Unexpected output format getting keyboard-dock initial status\n");
1615                 goto out_free_obj;
1616         }
1617
1618         output = obj->buffer.pointer;
1619         if (output[0] != 0x00 || (output[3] != 0x05 && output[3] != 0x45)) {
1620                 pr_err("Unexpected output [0]=0x%02x [3]=0x%02x getting keyboard-dock initial status\n",
1621                        output[0], output[3]);
1622                 goto out_free_obj;
1623         }
1624
1625         sw_tablet_mode = acer_kbd_dock_state_to_sw_tablet_mode(output[4]);
1626         input_report_switch(acer_wmi_input_dev, SW_TABLET_MODE, sw_tablet_mode);
1627
1628 out_free_obj:
1629         kfree(obj);
1630 }
1631
1632 static void acer_kbd_dock_event(const struct event_return_value *event)
1633 {
1634         int sw_tablet_mode;
1635
1636         if (!has_cap(ACER_CAP_KBD_DOCK))
1637                 return;
1638
1639         sw_tablet_mode = acer_kbd_dock_state_to_sw_tablet_mode(event->kbd_dock_state);
1640         input_report_switch(acer_wmi_input_dev, SW_TABLET_MODE, sw_tablet_mode);
1641         input_sync(acer_wmi_input_dev);
1642 }
1643
1644 /*
1645  * Rfkill devices
1646  */
1647 static void acer_rfkill_update(struct work_struct *ignored);
1648 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1649 static void acer_rfkill_update(struct work_struct *ignored)
1650 {
1651         u32 state;
1652         acpi_status status;
1653
1654         if (has_cap(ACER_CAP_WIRELESS)) {
1655                 status = get_u32(&state, ACER_CAP_WIRELESS);
1656                 if (ACPI_SUCCESS(status)) {
1657                         if (quirks->wireless == 3)
1658                                 rfkill_set_hw_state(wireless_rfkill, !state);
1659                         else
1660                                 rfkill_set_sw_state(wireless_rfkill, !state);
1661                 }
1662         }
1663
1664         if (has_cap(ACER_CAP_BLUETOOTH)) {
1665                 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1666                 if (ACPI_SUCCESS(status))
1667                         rfkill_set_sw_state(bluetooth_rfkill, !state);
1668         }
1669
1670         if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1671                 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1672                 if (ACPI_SUCCESS(status))
1673                         rfkill_set_sw_state(threeg_rfkill, !state);
1674         }
1675
1676         schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1677 }
1678
1679 static int acer_rfkill_set(void *data, bool blocked)
1680 {
1681         acpi_status status;
1682         u32 cap = (unsigned long)data;
1683
1684         if (rfkill_inited) {
1685                 status = set_u32(!blocked, cap);
1686                 if (ACPI_FAILURE(status))
1687                         return -ENODEV;
1688         }
1689
1690         return 0;
1691 }
1692
1693 static const struct rfkill_ops acer_rfkill_ops = {
1694         .set_block = acer_rfkill_set,
1695 };
1696
1697 static struct rfkill *acer_rfkill_register(struct device *dev,
1698                                            enum rfkill_type type,
1699                                            char *name, u32 cap)
1700 {
1701         int err;
1702         struct rfkill *rfkill_dev;
1703         u32 state;
1704         acpi_status status;
1705
1706         rfkill_dev = rfkill_alloc(name, dev, type,
1707                                   &acer_rfkill_ops,
1708                                   (void *)(unsigned long)cap);
1709         if (!rfkill_dev)
1710                 return ERR_PTR(-ENOMEM);
1711
1712         status = get_u32(&state, cap);
1713
1714         err = rfkill_register(rfkill_dev);
1715         if (err) {
1716                 rfkill_destroy(rfkill_dev);
1717                 return ERR_PTR(err);
1718         }
1719
1720         if (ACPI_SUCCESS(status))
1721                 rfkill_set_sw_state(rfkill_dev, !state);
1722
1723         return rfkill_dev;
1724 }
1725
1726 static int acer_rfkill_init(struct device *dev)
1727 {
1728         int err;
1729
1730         if (has_cap(ACER_CAP_WIRELESS)) {
1731                 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1732                         "acer-wireless", ACER_CAP_WIRELESS);
1733                 if (IS_ERR(wireless_rfkill)) {
1734                         err = PTR_ERR(wireless_rfkill);
1735                         goto error_wireless;
1736                 }
1737         }
1738
1739         if (has_cap(ACER_CAP_BLUETOOTH)) {
1740                 bluetooth_rfkill = acer_rfkill_register(dev,
1741                         RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1742                         ACER_CAP_BLUETOOTH);
1743                 if (IS_ERR(bluetooth_rfkill)) {
1744                         err = PTR_ERR(bluetooth_rfkill);
1745                         goto error_bluetooth;
1746                 }
1747         }
1748
1749         if (has_cap(ACER_CAP_THREEG)) {
1750                 threeg_rfkill = acer_rfkill_register(dev,
1751                         RFKILL_TYPE_WWAN, "acer-threeg",
1752                         ACER_CAP_THREEG);
1753                 if (IS_ERR(threeg_rfkill)) {
1754                         err = PTR_ERR(threeg_rfkill);
1755                         goto error_threeg;
1756                 }
1757         }
1758
1759         rfkill_inited = true;
1760
1761         if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1762             has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1763                 schedule_delayed_work(&acer_rfkill_work,
1764                         round_jiffies_relative(HZ));
1765
1766         return 0;
1767
1768 error_threeg:
1769         if (has_cap(ACER_CAP_BLUETOOTH)) {
1770                 rfkill_unregister(bluetooth_rfkill);
1771                 rfkill_destroy(bluetooth_rfkill);
1772         }
1773 error_bluetooth:
1774         if (has_cap(ACER_CAP_WIRELESS)) {
1775                 rfkill_unregister(wireless_rfkill);
1776                 rfkill_destroy(wireless_rfkill);
1777         }
1778 error_wireless:
1779         return err;
1780 }
1781
1782 static void acer_rfkill_exit(void)
1783 {
1784         if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1785             has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1786                 cancel_delayed_work_sync(&acer_rfkill_work);
1787
1788         if (has_cap(ACER_CAP_WIRELESS)) {
1789                 rfkill_unregister(wireless_rfkill);
1790                 rfkill_destroy(wireless_rfkill);
1791         }
1792
1793         if (has_cap(ACER_CAP_BLUETOOTH)) {
1794                 rfkill_unregister(bluetooth_rfkill);
1795                 rfkill_destroy(bluetooth_rfkill);
1796         }
1797
1798         if (has_cap(ACER_CAP_THREEG)) {
1799                 rfkill_unregister(threeg_rfkill);
1800                 rfkill_destroy(threeg_rfkill);
1801         }
1802         return;
1803 }
1804
1805 static void acer_wmi_notify(u32 value, void *context)
1806 {
1807         struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1808         union acpi_object *obj;
1809         struct event_return_value return_value;
1810         acpi_status status;
1811         u16 device_state;
1812         const struct key_entry *key;
1813         u32 scancode;
1814
1815         status = wmi_get_event_data(value, &response);
1816         if (status != AE_OK) {
1817                 pr_warn("bad event status 0x%x\n", status);
1818                 return;
1819         }
1820
1821         obj = (union acpi_object *)response.pointer;
1822
1823         if (!obj)
1824                 return;
1825         if (obj->type != ACPI_TYPE_BUFFER) {
1826                 pr_warn("Unknown response received %d\n", obj->type);
1827                 kfree(obj);
1828                 return;
1829         }
1830         if (obj->buffer.length != 8) {
1831                 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1832                 kfree(obj);
1833                 return;
1834         }
1835
1836         return_value = *((struct event_return_value *)obj->buffer.pointer);
1837         kfree(obj);
1838
1839         switch (return_value.function) {
1840         case WMID_HOTKEY_EVENT:
1841                 device_state = return_value.device_state;
1842                 pr_debug("device state: 0x%x\n", device_state);
1843
1844                 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1845                                                         return_value.key_num);
1846                 if (!key) {
1847                         pr_warn("Unknown key number - 0x%x\n",
1848                                 return_value.key_num);
1849                 } else {
1850                         scancode = return_value.key_num;
1851                         switch (key->keycode) {
1852                         case KEY_WLAN:
1853                         case KEY_BLUETOOTH:
1854                                 if (has_cap(ACER_CAP_WIRELESS))
1855                                         rfkill_set_sw_state(wireless_rfkill,
1856                                                 !(device_state & ACER_WMID3_GDS_WIRELESS));
1857                                 if (has_cap(ACER_CAP_THREEG))
1858                                         rfkill_set_sw_state(threeg_rfkill,
1859                                                 !(device_state & ACER_WMID3_GDS_THREEG));
1860                                 if (has_cap(ACER_CAP_BLUETOOTH))
1861                                         rfkill_set_sw_state(bluetooth_rfkill,
1862                                                 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1863                                 break;
1864                         case KEY_TOUCHPAD_TOGGLE:
1865                                 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1866                                                 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1867                         }
1868                         sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1869                 }
1870                 break;
1871         case WMID_ACCEL_OR_KBD_DOCK_EVENT:
1872                 acer_gsensor_event();
1873                 acer_kbd_dock_event(&return_value);
1874                 break;
1875         default:
1876                 pr_warn("Unknown function number - %d - %d\n",
1877                         return_value.function, return_value.key_num);
1878                 break;
1879         }
1880 }
1881
1882 static acpi_status __init
1883 wmid3_set_function_mode(struct func_input_params *params,
1884                         struct func_return_value *return_value)
1885 {
1886         acpi_status status;
1887         union acpi_object *obj;
1888
1889         struct acpi_buffer input = { sizeof(struct func_input_params), params };
1890         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1891
1892         status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
1893         if (ACPI_FAILURE(status))
1894                 return status;
1895
1896         obj = output.pointer;
1897
1898         if (!obj)
1899                 return AE_ERROR;
1900         else if (obj->type != ACPI_TYPE_BUFFER) {
1901                 kfree(obj);
1902                 return AE_ERROR;
1903         }
1904         if (obj->buffer.length != 4) {
1905                 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1906                 kfree(obj);
1907                 return AE_ERROR;
1908         }
1909
1910         *return_value = *((struct func_return_value *)obj->buffer.pointer);
1911         kfree(obj);
1912
1913         return status;
1914 }
1915
1916 static int __init acer_wmi_enable_ec_raw(void)
1917 {
1918         struct func_return_value return_value;
1919         acpi_status status;
1920         struct func_input_params params = {
1921                 .function_num = 0x1,
1922                 .commun_devices = 0xFFFF,
1923                 .devices = 0xFFFF,
1924                 .app_status = 0x00,             /* Launch Manager Deactive */
1925                 .app_mask = 0x01,
1926         };
1927
1928         status = wmid3_set_function_mode(&params, &return_value);
1929
1930         if (return_value.error_code || return_value.ec_return_value)
1931                 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
1932                         return_value.error_code,
1933                         return_value.ec_return_value);
1934         else
1935                 pr_info("Enabled EC raw mode\n");
1936
1937         return status;
1938 }
1939
1940 static int __init acer_wmi_enable_lm(void)
1941 {
1942         struct func_return_value return_value;
1943         acpi_status status;
1944         struct func_input_params params = {
1945                 .function_num = 0x1,
1946                 .commun_devices = 0xFFFF,
1947                 .devices = 0xFFFF,
1948                 .app_status = 0x01,            /* Launch Manager Active */
1949                 .app_mask = 0x01,
1950         };
1951
1952         status = wmid3_set_function_mode(&params, &return_value);
1953
1954         if (return_value.error_code || return_value.ec_return_value)
1955                 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
1956                         return_value.error_code,
1957                         return_value.ec_return_value);
1958
1959         return status;
1960 }
1961
1962 static int __init acer_wmi_enable_rf_button(void)
1963 {
1964         struct func_return_value return_value;
1965         acpi_status status;
1966         struct func_input_params params = {
1967                 .function_num = 0x1,
1968                 .commun_devices = 0xFFFF,
1969                 .devices = 0xFFFF,
1970                 .app_status = 0x10,            /* RF Button Active */
1971                 .app_mask = 0x10,
1972         };
1973
1974         status = wmid3_set_function_mode(&params, &return_value);
1975
1976         if (return_value.error_code || return_value.ec_return_value)
1977                 pr_warn("Enabling RF Button failed: 0x%x - 0x%x\n",
1978                         return_value.error_code,
1979                         return_value.ec_return_value);
1980
1981         return status;
1982 }
1983
1984 static int __init acer_wmi_accel_setup(void)
1985 {
1986         struct acpi_device *adev;
1987         int err;
1988
1989         adev = acpi_dev_get_first_match_dev("BST0001", NULL, -1);
1990         if (!adev)
1991                 return -ENODEV;
1992
1993         gsensor_handle = acpi_device_handle(adev);
1994         acpi_dev_put(adev);
1995
1996         acer_wmi_accel_dev = input_allocate_device();
1997         if (!acer_wmi_accel_dev)
1998                 return -ENOMEM;
1999
2000         acer_wmi_accel_dev->open = acer_gsensor_open;
2001
2002         acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
2003         acer_wmi_accel_dev->phys = "wmi/input1";
2004         acer_wmi_accel_dev->id.bustype = BUS_HOST;
2005         acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
2006         input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
2007         input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
2008         input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
2009
2010         err = input_register_device(acer_wmi_accel_dev);
2011         if (err)
2012                 goto err_free_dev;
2013
2014         return 0;
2015
2016 err_free_dev:
2017         input_free_device(acer_wmi_accel_dev);
2018         return err;
2019 }
2020
2021 static int __init acer_wmi_input_setup(void)
2022 {
2023         acpi_status status;
2024         int err;
2025
2026         acer_wmi_input_dev = input_allocate_device();
2027         if (!acer_wmi_input_dev)
2028                 return -ENOMEM;
2029
2030         acer_wmi_input_dev->name = "Acer WMI hotkeys";
2031         acer_wmi_input_dev->phys = "wmi/input0";
2032         acer_wmi_input_dev->id.bustype = BUS_HOST;
2033
2034         err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
2035         if (err)
2036                 goto err_free_dev;
2037
2038         if (has_cap(ACER_CAP_KBD_DOCK))
2039                 input_set_capability(acer_wmi_input_dev, EV_SW, SW_TABLET_MODE);
2040
2041         status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
2042                                                 acer_wmi_notify, NULL);
2043         if (ACPI_FAILURE(status)) {
2044                 err = -EIO;
2045                 goto err_free_dev;
2046         }
2047
2048         if (has_cap(ACER_CAP_KBD_DOCK))
2049                 acer_kbd_dock_get_initial_state();
2050
2051         err = input_register_device(acer_wmi_input_dev);
2052         if (err)
2053                 goto err_uninstall_notifier;
2054
2055         return 0;
2056
2057 err_uninstall_notifier:
2058         wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2059 err_free_dev:
2060         input_free_device(acer_wmi_input_dev);
2061         return err;
2062 }
2063
2064 static void acer_wmi_input_destroy(void)
2065 {
2066         wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2067         input_unregister_device(acer_wmi_input_dev);
2068 }
2069
2070 /*
2071  * debugfs functions
2072  */
2073 static u32 get_wmid_devices(void)
2074 {
2075         struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
2076         union acpi_object *obj;
2077         acpi_status status;
2078         u32 devices = 0;
2079
2080         status = wmi_query_block(WMID_GUID2, 0, &out);
2081         if (ACPI_FAILURE(status))
2082                 return 0;
2083
2084         obj = (union acpi_object *) out.pointer;
2085         if (obj) {
2086                 if (obj->type == ACPI_TYPE_BUFFER &&
2087                         (obj->buffer.length == sizeof(u32) ||
2088                         obj->buffer.length == sizeof(u64))) {
2089                         devices = *((u32 *) obj->buffer.pointer);
2090                 } else if (obj->type == ACPI_TYPE_INTEGER) {
2091                         devices = (u32) obj->integer.value;
2092                 }
2093         }
2094
2095         kfree(out.pointer);
2096         return devices;
2097 }
2098
2099 /*
2100  * Platform device
2101  */
2102 static int acer_platform_probe(struct platform_device *device)
2103 {
2104         int err;
2105
2106         if (has_cap(ACER_CAP_MAILLED)) {
2107                 err = acer_led_init(&device->dev);
2108                 if (err)
2109                         goto error_mailled;
2110         }
2111
2112         if (has_cap(ACER_CAP_BRIGHTNESS)) {
2113                 err = acer_backlight_init(&device->dev);
2114                 if (err)
2115                         goto error_brightness;
2116         }
2117
2118         err = acer_rfkill_init(&device->dev);
2119         if (err)
2120                 goto error_rfkill;
2121
2122         return err;
2123
2124 error_rfkill:
2125         if (has_cap(ACER_CAP_BRIGHTNESS))
2126                 acer_backlight_exit();
2127 error_brightness:
2128         if (has_cap(ACER_CAP_MAILLED))
2129                 acer_led_exit();
2130 error_mailled:
2131         return err;
2132 }
2133
2134 static int acer_platform_remove(struct platform_device *device)
2135 {
2136         if (has_cap(ACER_CAP_MAILLED))
2137                 acer_led_exit();
2138         if (has_cap(ACER_CAP_BRIGHTNESS))
2139                 acer_backlight_exit();
2140
2141         acer_rfkill_exit();
2142         return 0;
2143 }
2144
2145 #ifdef CONFIG_PM_SLEEP
2146 static int acer_suspend(struct device *dev)
2147 {
2148         u32 value;
2149         struct acer_data *data = &interface->data;
2150
2151         if (!data)
2152                 return -ENOMEM;
2153
2154         if (has_cap(ACER_CAP_MAILLED)) {
2155                 get_u32(&value, ACER_CAP_MAILLED);
2156                 set_u32(LED_OFF, ACER_CAP_MAILLED);
2157                 data->mailled = value;
2158         }
2159
2160         if (has_cap(ACER_CAP_BRIGHTNESS)) {
2161                 get_u32(&value, ACER_CAP_BRIGHTNESS);
2162                 data->brightness = value;
2163         }
2164
2165         return 0;
2166 }
2167
2168 static int acer_resume(struct device *dev)
2169 {
2170         struct acer_data *data = &interface->data;
2171
2172         if (!data)
2173                 return -ENOMEM;
2174
2175         if (has_cap(ACER_CAP_MAILLED))
2176                 set_u32(data->mailled, ACER_CAP_MAILLED);
2177
2178         if (has_cap(ACER_CAP_BRIGHTNESS))
2179                 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2180
2181         if (acer_wmi_accel_dev)
2182                 acer_gsensor_init();
2183
2184         return 0;
2185 }
2186 #else
2187 #define acer_suspend    NULL
2188 #define acer_resume     NULL
2189 #endif
2190
2191 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2192
2193 static void acer_platform_shutdown(struct platform_device *device)
2194 {
2195         struct acer_data *data = &interface->data;
2196
2197         if (!data)
2198                 return;
2199
2200         if (has_cap(ACER_CAP_MAILLED))
2201                 set_u32(LED_OFF, ACER_CAP_MAILLED);
2202 }
2203
2204 static struct platform_driver acer_platform_driver = {
2205         .driver = {
2206                 .name = "acer-wmi",
2207                 .pm = &acer_pm,
2208         },
2209         .probe = acer_platform_probe,
2210         .remove = acer_platform_remove,
2211         .shutdown = acer_platform_shutdown,
2212 };
2213
2214 static struct platform_device *acer_platform_device;
2215
2216 static void remove_debugfs(void)
2217 {
2218         debugfs_remove_recursive(interface->debug.root);
2219 }
2220
2221 static void __init create_debugfs(void)
2222 {
2223         interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2224
2225         debugfs_create_u32("devices", S_IRUGO, interface->debug.root,
2226                            &interface->debug.wmid_devices);
2227 }
2228
2229 static int __init acer_wmi_init(void)
2230 {
2231         int err;
2232
2233         pr_info("Acer Laptop ACPI-WMI Extras\n");
2234
2235         if (dmi_check_system(acer_blacklist)) {
2236                 pr_info("Blacklisted hardware detected - not loading\n");
2237                 return -ENODEV;
2238         }
2239
2240         find_quirks();
2241
2242         /*
2243          * The AMW0_GUID1 wmi is not only found on Acer family but also other
2244          * machines like Lenovo, Fujitsu and Medion. In the past days,
2245          * acer-wmi driver handled those non-Acer machines by quirks list.
2246          * But actually acer-wmi driver was loaded on any machines that have
2247          * AMW0_GUID1. This behavior is strange because those machines should
2248          * be supported by appropriate wmi drivers. e.g. fujitsu-laptop,
2249          * ideapad-laptop. So, here checks the machine that has AMW0_GUID1
2250          * should be in Acer/Gateway/Packard Bell white list, or it's already
2251          * in the past quirk list.
2252          */
2253         if (wmi_has_guid(AMW0_GUID1) &&
2254             !dmi_check_system(amw0_whitelist) &&
2255             quirks == &quirk_unknown) {
2256                 pr_debug("Unsupported machine has AMW0_GUID1, unable to load\n");
2257                 return -ENODEV;
2258         }
2259
2260         /*
2261          * Detect which ACPI-WMI interface we're using.
2262          */
2263         if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2264                 interface = &AMW0_V2_interface;
2265
2266         if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2267                 interface = &wmid_interface;
2268
2269         if (wmi_has_guid(WMID_GUID3))
2270                 interface = &wmid_v2_interface;
2271
2272         if (interface)
2273                 dmi_walk(type_aa_dmi_decode, NULL);
2274
2275         if (wmi_has_guid(WMID_GUID2) && interface) {
2276                 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2277                         pr_err("Unable to detect available WMID devices\n");
2278                         return -ENODEV;
2279                 }
2280                 /* WMID always provides brightness methods */
2281                 interface->capability |= ACER_CAP_BRIGHTNESS;
2282         } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa && force_caps == -1) {
2283                 pr_err("No WMID device detection method found\n");
2284                 return -ENODEV;
2285         }
2286
2287         if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2288                 interface = &AMW0_interface;
2289
2290                 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2291                         pr_err("Unable to detect available AMW0 devices\n");
2292                         return -ENODEV;
2293                 }
2294         }
2295
2296         if (wmi_has_guid(AMW0_GUID1))
2297                 AMW0_find_mailled();
2298
2299         if (!interface) {
2300                 pr_err("No or unsupported WMI interface, unable to load\n");
2301                 return -ENODEV;
2302         }
2303
2304         set_quirks();
2305
2306         if (dmi_check_system(video_vendor_dmi_table))
2307                 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2308
2309         if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2310                 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2311
2312         if (wmi_has_guid(WMID_GUID3))
2313                 interface->capability |= ACER_CAP_SET_FUNCTION_MODE;
2314
2315         if (force_caps != -1)
2316                 interface->capability = force_caps;
2317
2318         if (wmi_has_guid(WMID_GUID3) &&
2319             (interface->capability & ACER_CAP_SET_FUNCTION_MODE)) {
2320                 if (ACPI_FAILURE(acer_wmi_enable_rf_button()))
2321                         pr_warn("Cannot enable RF Button Driver\n");
2322
2323                 if (ec_raw_mode) {
2324                         if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2325                                 pr_err("Cannot enable EC raw mode\n");
2326                                 return -ENODEV;
2327                         }
2328                 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2329                         pr_err("Cannot enable Launch Manager mode\n");
2330                         return -ENODEV;
2331                 }
2332         } else if (ec_raw_mode) {
2333                 pr_info("No WMID EC raw mode enable method\n");
2334         }
2335
2336         if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2337                 err = acer_wmi_input_setup();
2338                 if (err)
2339                         return err;
2340                 err = acer_wmi_accel_setup();
2341                 if (err && err != -ENODEV)
2342                         pr_warn("Cannot enable accelerometer\n");
2343         }
2344
2345         err = platform_driver_register(&acer_platform_driver);
2346         if (err) {
2347                 pr_err("Unable to register platform driver\n");
2348                 goto error_platform_register;
2349         }
2350
2351         acer_platform_device = platform_device_alloc("acer-wmi", -1);
2352         if (!acer_platform_device) {
2353                 err = -ENOMEM;
2354                 goto error_device_alloc;
2355         }
2356
2357         err = platform_device_add(acer_platform_device);
2358         if (err)
2359                 goto error_device_add;
2360
2361         if (wmi_has_guid(WMID_GUID2)) {
2362                 interface->debug.wmid_devices = get_wmid_devices();
2363                 create_debugfs();
2364         }
2365
2366         /* Override any initial settings with values from the commandline */
2367         acer_commandline_init();
2368
2369         return 0;
2370
2371 error_device_add:
2372         platform_device_put(acer_platform_device);
2373 error_device_alloc:
2374         platform_driver_unregister(&acer_platform_driver);
2375 error_platform_register:
2376         if (wmi_has_guid(ACERWMID_EVENT_GUID))
2377                 acer_wmi_input_destroy();
2378         if (acer_wmi_accel_dev)
2379                 input_unregister_device(acer_wmi_accel_dev);
2380
2381         return err;
2382 }
2383
2384 static void __exit acer_wmi_exit(void)
2385 {
2386         if (wmi_has_guid(ACERWMID_EVENT_GUID))
2387                 acer_wmi_input_destroy();
2388
2389         if (acer_wmi_accel_dev)
2390                 input_unregister_device(acer_wmi_accel_dev);
2391
2392         remove_debugfs();
2393         platform_device_unregister(acer_platform_device);
2394         platform_driver_unregister(&acer_platform_driver);
2395
2396         pr_info("Acer Laptop WMI Extras unloaded\n");
2397         return;
2398 }
2399
2400 module_init(acer_wmi_init);
2401 module_exit(acer_wmi_exit);