1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 *  Acer WMI Laptop Extras
   4 *
   5 *  Copyright (C) 2007-2009	Carlos Corbacho <carlos@strangeworlds.co.uk>
   6 *
   7 *  Based on acer_acpi:
   8 *    Copyright (C) 2005-2007	E.M. Smith
   9 *    Copyright (C) 2007-2008	Carlos Corbacho <cathectic@gmail.com>
  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
  33MODULE_AUTHOR("Carlos Corbacho");
  34MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
  35MODULE_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
  83MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
  84MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
  85MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
  86
  87enum 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
  93static 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
 138static struct input_dev *acer_wmi_input_dev;
 139static struct input_dev *acer_wmi_accel_dev;
 140
 141struct 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 */
 175struct 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
 184struct func_return_value {
 185	u8 error_code;          /* Error Code */
 186	u8 ec_return_value;     /* EC Return Value */
 187	u16 reserved;
 188} __packed;
 189
 190struct 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
 197struct 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
 203struct 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
 210struct 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 */
 239enum 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
 251static int max_brightness = 0xF;
 252
 253static int mailled = -1;
 254static int brightness = -1;
 255static int threeg = -1;
 256static int force_series;
 257static int force_caps = -1;
 258static bool ec_raw_mode;
 259static bool has_type_aa;
 260static u16 commun_func_bitmap;
 261static u8 commun_fn_key_number;
 262
 263module_param(mailled, int, 0444);
 264module_param(brightness, int, 0444);
 265module_param(threeg, int, 0444);
 266module_param(force_series, int, 0444);
 267module_param(force_caps, int, 0444);
 268module_param(ec_raw_mode, bool, 0444);
 269MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
 270MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
 271MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
 272MODULE_PARM_DESC(force_series, "Force a different laptop series");
 273MODULE_PARM_DESC(force_caps, "Force the capability bitmask to this value");
 274MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
 275
 276struct acer_data {
 277	int mailled;
 278	int threeg;
 279	int brightness;
 280};
 281
 282struct acer_debug {
 283	struct dentry *root;
 284	u32 wmid_devices;
 285};
 286
 287static struct rfkill *wireless_rfkill;
 288static struct rfkill *bluetooth_rfkill;
 289static struct rfkill *threeg_rfkill;
 290static bool rfkill_inited;
 291
 292/* Each low-level interface must define at least some of the following */
 293struct 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 */
 308static 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
 316struct 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
 326static struct quirk_entry *quirks;
 327
 328static 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
 341static int __init dmi_matched(const struct dmi_system_id *dmi)
 342{
 343	quirks = dmi->driver_data;
 344	return 1;
 345}
 346
 347static 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
 356static struct quirk_entry quirk_unknown = {
 357};
 358
 359static struct quirk_entry quirk_acer_aspire_1520 = {
 360	.brightness = -1,
 361};
 362
 363static struct quirk_entry quirk_acer_travelmate_2490 = {
 364	.mailled = 1,
 365};
 366
 367static 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 */
 374static struct quirk_entry quirk_medion_md_98300 = {
 375	.wireless = 1,
 376};
 377
 378static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
 379	.wireless = 2,
 380};
 381
 382static struct quirk_entry quirk_lenovo_ideapad_s205 = {
 383	.wireless = 3,
 384};
 385
 386/* The Aspire One has a dummy ACPI-WMI interface - disable it */
 387static 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
 405static 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 */
 431static 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 */
 595static 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 */
 663static 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
 680static bool has_cap(u32 cap)
 681{
 682	return interface->capability & cap;
 683}
 684
 685/*
 686 * AMW0 (V1) interface
 687 */
 688struct wmab_args {
 689	u32 eax;
 690	u32 ebx;
 691	u32 ecx;
 692	u32 edx;
 693};
 694
 695struct wmab_ret {
 696	u32 eax;
 697	u32 ebx;
 698	u32 ecx;
 699	u32 edx;
 700	u32 eex;
 701};
 702
 703static acpi_status wmab_execute(struct wmab_args *regbuf,
 704struct 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
 716static 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
 786static 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
 825static 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
 857static 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
 866static 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
 877static 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;
 950out:
 951	kfree(out.pointer);
 952	return status;
 953}
 954
 955static struct wmi_interface AMW0_interface = {
 956	.type = ACER_AMW0,
 957};
 958
 959static struct wmi_interface AMW0_V2_interface = {
 960	.type = ACER_AMW0_V2,
 961};
 962
 963/*
 964 * New interface (The WMID interface)
 965 */
 966static acpi_status
 967WMI_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
 999static 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
1036static 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
1079static 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
1127static 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
1147static 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
1234static 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
1254static 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
1281static 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
1324static struct wmi_interface wmid_interface = {
1325	.type = ACER_WMID,
1326};
1327
1328static struct wmi_interface wmid_v2_interface = {
1329	.type = ACER_WMID_v2,
1330};
1331
1332/*
1333 * WMID Gaming interface
1334 */
1335
1336static acpi_status
1337WMI_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
1370static 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
1394static 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
1419static 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
1444static 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
1474static 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
1518static 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 */
1535static void mail_led_set(struct led_classdev *led_cdev,
1536enum led_brightness value)
1537{
1538	set_u32(value, ACER_CAP_MAILLED);
1539}
1540
1541static struct led_classdev mail_led = {
1542	.name = "acer-wmi::mail",
1543	.brightness_set = mail_led_set,
1544};
1545
1546static int acer_led_init(struct device *dev)
1547{
1548	return led_classdev_register(dev, &mail_led);
1549}
1550
1551static 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 */
1560static struct backlight_device *acer_backlight_device;
1561
1562static int read_brightness(struct backlight_device *bd)
1563{
1564	u32 value;
1565	get_u32(&value, ACER_CAP_BRIGHTNESS);
1566	return value;
1567}
1568
1569static 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
1578static const struct backlight_ops acer_bl_ops = {
1579	.get_brightness = read_brightness,
1580	.update_status = update_bl_status,
1581};
1582
1583static 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
1607static void acer_backlight_exit(void)
1608{
1609	backlight_device_unregister(acer_backlight_device);
1610}
1611
1612/*
1613 * Accelerometer device
1614 */
1615static acpi_handle gsensor_handle;
1616
1617static 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
1632static int acer_gsensor_open(struct input_dev *input)
1633{
1634	return acer_gsensor_init();
1635}
1636
1637static 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 */
1669static 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 */
1704static 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
1719static 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
1751out_free_obj:
1752	kfree(obj);
1753}
1754
1755static 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 */
1770static void acer_rfkill_update(struct work_struct *ignored);
1771static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1772static 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
1802static 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
1816static const struct rfkill_ops acer_rfkill_ops = {
1817	.set_block = acer_rfkill_set,
1818};
1819
1820static 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
1849static 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
1891error_threeg:
1892	if (has_cap(ACER_CAP_BLUETOOTH)) {
1893		rfkill_unregister(bluetooth_rfkill);
1894		rfkill_destroy(bluetooth_rfkill);
1895	}
1896error_bluetooth:
1897	if (has_cap(ACER_CAP_WIRELESS)) {
1898		rfkill_unregister(wireless_rfkill);
1899		rfkill_destroy(wireless_rfkill);
1900	}
1901error_wireless:
1902	return err;
1903}
1904
1905static 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
1928static 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
2009static acpi_status __init
2010wmid3_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
2043static 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
2067static 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
2089static 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
2111static 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
2143err_free_dev:
2144	input_free_device(acer_wmi_accel_dev);
2145	return err;
2146}
2147
2148static 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
2184err_uninstall_notifier:
2185	wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2186err_free_dev:
2187	input_free_device(acer_wmi_input_dev);
2188	return err;
2189}
2190
2191static 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 */
2200static 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 */
2229static 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
2251error_rfkill:
2252	if (has_cap(ACER_CAP_BRIGHTNESS))
2253		acer_backlight_exit();
2254error_brightness:
2255	if (has_cap(ACER_CAP_MAILLED))
2256		acer_led_exit();
2257error_mailled:
2258	return err;
2259}
2260
2261static int 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	return 0;
2270}
2271
2272#ifdef CONFIG_PM_SLEEP
2273static int acer_suspend(struct device *dev)
2274{
2275	u32 value;
2276	struct acer_data *data = &interface->data;
2277
2278	if (!data)
2279		return -ENOMEM;
2280
2281	if (has_cap(ACER_CAP_MAILLED)) {
2282		get_u32(&value, ACER_CAP_MAILLED);
2283		set_u32(LED_OFF, ACER_CAP_MAILLED);
2284		data->mailled = value;
2285	}
2286
2287	if (has_cap(ACER_CAP_BRIGHTNESS)) {
2288		get_u32(&value, ACER_CAP_BRIGHTNESS);
2289		data->brightness = value;
2290	}
2291
2292	return 0;
2293}
2294
2295static int acer_resume(struct device *dev)
2296{
2297	struct acer_data *data = &interface->data;
2298
2299	if (!data)
2300		return -ENOMEM;
2301
2302	if (has_cap(ACER_CAP_MAILLED))
2303		set_u32(data->mailled, ACER_CAP_MAILLED);
2304
2305	if (has_cap(ACER_CAP_BRIGHTNESS))
2306		set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2307
2308	if (acer_wmi_accel_dev)
2309		acer_gsensor_init();
2310
2311	return 0;
2312}
2313#else
2314#define acer_suspend	NULL
2315#define acer_resume	NULL
2316#endif
2317
2318static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2319
2320static void acer_platform_shutdown(struct platform_device *device)
2321{
2322	struct acer_data *data = &interface->data;
2323
2324	if (!data)
2325		return;
2326
2327	if (has_cap(ACER_CAP_MAILLED))
2328		set_u32(LED_OFF, ACER_CAP_MAILLED);
2329}
2330
2331static struct platform_driver acer_platform_driver = {
2332	.driver = {
2333		.name = "acer-wmi",
2334		.pm = &acer_pm,
2335	},
2336	.probe = acer_platform_probe,
2337	.remove = acer_platform_remove,
2338	.shutdown = acer_platform_shutdown,
2339};
2340
2341static struct platform_device *acer_platform_device;
2342
2343static void remove_debugfs(void)
2344{
2345	debugfs_remove_recursive(interface->debug.root);
2346}
2347
2348static void __init create_debugfs(void)
2349{
2350	interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2351
2352	debugfs_create_u32("devices", S_IRUGO, interface->debug.root,
2353			   &interface->debug.wmid_devices);
2354}
2355
2356static int __init acer_wmi_init(void)
2357{
2358	int err;
2359
2360	pr_info("Acer Laptop ACPI-WMI Extras\n");
2361
2362	if (dmi_check_system(acer_blacklist)) {
2363		pr_info("Blacklisted hardware detected - not loading\n");
2364		return -ENODEV;
2365	}
2366
2367	find_quirks();
2368
2369	/*
2370	 * The AMW0_GUID1 wmi is not only found on Acer family but also other
2371	 * machines like Lenovo, Fujitsu and Medion. In the past days,
2372	 * acer-wmi driver handled those non-Acer machines by quirks list.
2373	 * But actually acer-wmi driver was loaded on any machines that have
2374	 * AMW0_GUID1. This behavior is strange because those machines should
2375	 * be supported by appropriate wmi drivers. e.g. fujitsu-laptop,
2376	 * ideapad-laptop. So, here checks the machine that has AMW0_GUID1
2377	 * should be in Acer/Gateway/Packard Bell white list, or it's already
2378	 * in the past quirk list.
2379	 */
2380	if (wmi_has_guid(AMW0_GUID1) &&
2381	    !dmi_check_system(amw0_whitelist) &&
2382	    quirks == &quirk_unknown) {
2383		pr_debug("Unsupported machine has AMW0_GUID1, unable to load\n");
2384		return -ENODEV;
2385	}
2386
2387	/*
2388	 * Detect which ACPI-WMI interface we're using.
2389	 */
2390	if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2391		interface = &AMW0_V2_interface;
2392
2393	if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2394		interface = &wmid_interface;
2395
2396	if (wmi_has_guid(WMID_GUID3))
2397		interface = &wmid_v2_interface;
2398
2399	if (interface)
2400		dmi_walk(type_aa_dmi_decode, NULL);
2401
2402	if (wmi_has_guid(WMID_GUID2) && interface) {
2403		if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2404			pr_err("Unable to detect available WMID devices\n");
2405			return -ENODEV;
2406		}
2407		/* WMID always provides brightness methods */
2408		interface->capability |= ACER_CAP_BRIGHTNESS;
2409	} else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa && force_caps == -1) {
2410		pr_err("No WMID device detection method found\n");
2411		return -ENODEV;
2412	}
2413
2414	if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2415		interface = &AMW0_interface;
2416
2417		if (ACPI_FAILURE(AMW0_set_capabilities())) {
2418			pr_err("Unable to detect available AMW0 devices\n");
2419			return -ENODEV;
2420		}
2421	}
2422
2423	if (wmi_has_guid(AMW0_GUID1))
2424		AMW0_find_mailled();
2425
2426	if (!interface) {
2427		pr_err("No or unsupported WMI interface, unable to load\n");
2428		return -ENODEV;
2429	}
2430
2431	set_quirks();
2432
 
 
 
2433	if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2434		interface->capability &= ~ACER_CAP_BRIGHTNESS;
2435
2436	if (wmi_has_guid(WMID_GUID3))
2437		interface->capability |= ACER_CAP_SET_FUNCTION_MODE;
2438
2439	if (force_caps != -1)
2440		interface->capability = force_caps;
2441
2442	if (wmi_has_guid(WMID_GUID3) &&
2443	    (interface->capability & ACER_CAP_SET_FUNCTION_MODE)) {
2444		if (ACPI_FAILURE(acer_wmi_enable_rf_button()))
2445			pr_warn("Cannot enable RF Button Driver\n");
2446
2447		if (ec_raw_mode) {
2448			if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2449				pr_err("Cannot enable EC raw mode\n");
2450				return -ENODEV;
2451			}
2452		} else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2453			pr_err("Cannot enable Launch Manager mode\n");
2454			return -ENODEV;
2455		}
2456	} else if (ec_raw_mode) {
2457		pr_info("No WMID EC raw mode enable method\n");
2458	}
2459
2460	if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2461		err = acer_wmi_input_setup();
2462		if (err)
2463			return err;
2464		err = acer_wmi_accel_setup();
2465		if (err && err != -ENODEV)
2466			pr_warn("Cannot enable accelerometer\n");
2467	}
2468
2469	err = platform_driver_register(&acer_platform_driver);
2470	if (err) {
2471		pr_err("Unable to register platform driver\n");
2472		goto error_platform_register;
2473	}
2474
2475	acer_platform_device = platform_device_alloc("acer-wmi", PLATFORM_DEVID_NONE);
2476	if (!acer_platform_device) {
2477		err = -ENOMEM;
2478		goto error_device_alloc;
2479	}
2480
2481	err = platform_device_add(acer_platform_device);
2482	if (err)
2483		goto error_device_add;
2484
2485	if (wmi_has_guid(WMID_GUID2)) {
2486		interface->debug.wmid_devices = get_wmid_devices();
2487		create_debugfs();
2488	}
2489
2490	/* Override any initial settings with values from the commandline */
2491	acer_commandline_init();
2492
2493	return 0;
2494
2495error_device_add:
2496	platform_device_put(acer_platform_device);
2497error_device_alloc:
2498	platform_driver_unregister(&acer_platform_driver);
2499error_platform_register:
2500	if (wmi_has_guid(ACERWMID_EVENT_GUID))
2501		acer_wmi_input_destroy();
2502	if (acer_wmi_accel_dev)
2503		input_unregister_device(acer_wmi_accel_dev);
2504
2505	return err;
2506}
2507
2508static void __exit acer_wmi_exit(void)
2509{
2510	if (wmi_has_guid(ACERWMID_EVENT_GUID))
2511		acer_wmi_input_destroy();
2512
2513	if (acer_wmi_accel_dev)
2514		input_unregister_device(acer_wmi_accel_dev);
2515
2516	remove_debugfs();
2517	platform_device_unregister(acer_platform_device);
2518	platform_driver_unregister(&acer_platform_driver);
2519
2520	pr_info("Acer Laptop WMI Extras unloaded\n");
2521	return;
2522}
2523
2524module_init(acer_wmi_init);
2525module_exit(acer_wmi_exit);