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 33 ACPI_MODULE_NAME(KBUILD_MODNAME); 34 MODULE_AUTHOR("Carlos Corbacho"); 35 MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver"); 36 MODULE_LICENSE("GPL"); 37 38 /* 39 * Magic Number 40 * Meaning is unknown - this number is required for writing to ACPI for AMW0 41 * (it's also used in acerhk when directly accessing the BIOS) 42 */ 43 #define ACER_AMW0_WRITE 0x9610 44 45 /* 46 * Bit masks for the AMW0 interface 47 */ 48 #define ACER_AMW0_WIRELESS_MASK 0x35 49 #define ACER_AMW0_BLUETOOTH_MASK 0x34 50 #define ACER_AMW0_MAILLED_MASK 0x31 51 52 /* 53 * Method IDs for WMID interface 54 */ 55 #define ACER_WMID_GET_WIRELESS_METHODID 1 56 #define ACER_WMID_GET_BLUETOOTH_METHODID 2 57 #define ACER_WMID_GET_BRIGHTNESS_METHODID 3 58 #define ACER_WMID_SET_WIRELESS_METHODID 4 59 #define ACER_WMID_SET_BLUETOOTH_METHODID 5 60 #define ACER_WMID_SET_BRIGHTNESS_METHODID 6 61 #define ACER_WMID_GET_THREEG_METHODID 10 62 #define ACER_WMID_SET_THREEG_METHODID 11 63 64 /* 65 * Acer ACPI method GUIDs 66 */ 67 #define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB" 68 #define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C" 69 #define WMID_GUID1 "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3" 70 #define WMID_GUID2 "95764E09-FB56-4E83-B31A-37761F60994A" 71 #define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531" 72 73 /* 74 * Acer ACPI event GUIDs 75 */ 76 #define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026" 77 78 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB"); 79 MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"); 80 MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026"); 81 82 enum acer_wmi_event_ids { 83 WMID_HOTKEY_EVENT = 0x1, 84 WMID_ACCEL_OR_KBD_DOCK_EVENT = 0x5, 85 }; 86 87 static const struct key_entry acer_wmi_keymap[] __initconst = { 88 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */ 89 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */ 90 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */ 91 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */ 92 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */ 93 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */ 94 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */ 95 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */ 96 {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */ 97 {KE_IGNORE, 0x41, {KEY_MUTE} }, 98 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} }, 99 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} }, 100 {KE_IGNORE, 0x43, {KEY_NEXTSONG} }, 101 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} }, 102 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} }, 103 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} }, 104 {KE_IGNORE, 0x45, {KEY_STOP} }, 105 {KE_IGNORE, 0x50, {KEY_STOP} }, 106 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} }, 107 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} }, 108 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} }, 109 {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} }, 110 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} }, 111 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} }, 112 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */ 113 {KE_IGNORE, 0x81, {KEY_SLEEP} }, 114 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */ 115 {KE_IGNORE, 0x84, {KEY_KBDILLUMTOGGLE} }, /* Automatic Keyboard background light toggle */ 116 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} }, 117 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} }, 118 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} }, 119 {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} }, 120 {KE_KEY, 0x86, {KEY_WLAN} }, 121 {KE_KEY, 0x87, {KEY_POWER} }, 122 {KE_END, 0} 123 }; 124 125 static struct input_dev *acer_wmi_input_dev; 126 static struct input_dev *acer_wmi_accel_dev; 127 128 struct event_return_value { 129 u8 function; 130 u8 key_num; 131 u16 device_state; 132 u16 reserved1; 133 u8 kbd_dock_state; 134 u8 reserved2; 135 } __attribute__((packed)); 136 137 /* 138 * GUID3 Get Device Status device flags 139 */ 140 #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */ 141 #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */ 142 #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */ 143 #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */ 144 #define ACER_WMID3_GDS_RFBTN (1<<14) /* RF Button */ 145 146 #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */ 147 148 /* Hotkey Customized Setting and Acer Application Status. 149 * Set Device Default Value and Report Acer Application Status. 150 * When Acer Application starts, it will run this method to inform 151 * BIOS/EC that Acer Application is on. 152 * App Status 153 * Bit[0]: Launch Manager Status 154 * Bit[1]: ePM Status 155 * Bit[2]: Device Control Status 156 * Bit[3]: Acer Power Button Utility Status 157 * Bit[4]: RF Button Status 158 * Bit[5]: ODD PM Status 159 * Bit[6]: Device Default Value Control 160 * Bit[7]: Hall Sensor Application Status 161 */ 162 struct func_input_params { 163 u8 function_num; /* Function Number */ 164 u16 commun_devices; /* Communication type devices default status */ 165 u16 devices; /* Other type devices default status */ 166 u8 app_status; /* Acer Device Status. LM, ePM, RF Button... */ 167 u8 app_mask; /* Bit mask to app_status */ 168 u8 reserved; 169 } __attribute__((packed)); 170 171 struct func_return_value { 172 u8 error_code; /* Error Code */ 173 u8 ec_return_value; /* EC Return Value */ 174 u16 reserved; 175 } __attribute__((packed)); 176 177 struct wmid3_gds_set_input_param { /* Set Device Status input parameter */ 178 u8 function_num; /* Function Number */ 179 u8 hotkey_number; /* Hotkey Number */ 180 u16 devices; /* Set Device */ 181 u8 volume_value; /* Volume Value */ 182 } __attribute__((packed)); 183 184 struct wmid3_gds_get_input_param { /* Get Device Status input parameter */ 185 u8 function_num; /* Function Number */ 186 u8 hotkey_number; /* Hotkey Number */ 187 u16 devices; /* Get Device */ 188 } __attribute__((packed)); 189 190 struct wmid3_gds_return_value { /* Get Device Status return value*/ 191 u8 error_code; /* Error Code */ 192 u8 ec_return_value; /* EC Return Value */ 193 u16 devices; /* Current Device Status */ 194 u32 reserved; 195 } __attribute__((packed)); 196 197 struct hotkey_function_type_aa { 198 u8 type; 199 u8 length; 200 u16 handle; 201 u16 commun_func_bitmap; 202 u16 application_func_bitmap; 203 u16 media_func_bitmap; 204 u16 display_func_bitmap; 205 u16 others_func_bitmap; 206 u8 commun_fn_key_number; 207 } __attribute__((packed)); 208 209 /* 210 * Interface capability flags 211 */ 212 #define ACER_CAP_MAILLED BIT(0) 213 #define ACER_CAP_WIRELESS BIT(1) 214 #define ACER_CAP_BLUETOOTH BIT(2) 215 #define ACER_CAP_BRIGHTNESS BIT(3) 216 #define ACER_CAP_THREEG BIT(4) 217 #define ACER_CAP_SET_FUNCTION_MODE BIT(5) 218 #define ACER_CAP_KBD_DOCK BIT(6) 219 220 /* 221 * Interface type flags 222 */ 223 enum interface_flags { 224 ACER_AMW0, 225 ACER_AMW0_V2, 226 ACER_WMID, 227 ACER_WMID_v2, 228 }; 229 230 #define ACER_DEFAULT_WIRELESS 0 231 #define ACER_DEFAULT_BLUETOOTH 0 232 #define ACER_DEFAULT_MAILLED 0 233 #define ACER_DEFAULT_THREEG 0 234 235 static int max_brightness = 0xF; 236 237 static int mailled = -1; 238 static int brightness = -1; 239 static int threeg = -1; 240 static int force_series; 241 static int force_caps = -1; 242 static bool ec_raw_mode; 243 static bool has_type_aa; 244 static u16 commun_func_bitmap; 245 static u8 commun_fn_key_number; 246 247 module_param(mailled, int, 0444); 248 module_param(brightness, int, 0444); 249 module_param(threeg, int, 0444); 250 module_param(force_series, int, 0444); 251 module_param(force_caps, int, 0444); 252 module_param(ec_raw_mode, bool, 0444); 253 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED"); 254 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness"); 255 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware"); 256 MODULE_PARM_DESC(force_series, "Force a different laptop series"); 257 MODULE_PARM_DESC(force_caps, "Force the capability bitmask to this value"); 258 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode"); 259 260 struct acer_data { 261 int mailled; 262 int threeg; 263 int brightness; 264 }; 265 266 struct acer_debug { 267 struct dentry *root; 268 u32 wmid_devices; 269 }; 270 271 static struct rfkill *wireless_rfkill; 272 static struct rfkill *bluetooth_rfkill; 273 static struct rfkill *threeg_rfkill; 274 static bool rfkill_inited; 275 276 /* Each low-level interface must define at least some of the following */ 277 struct wmi_interface { 278 /* The WMI device type */ 279 u32 type; 280 281 /* The capabilities this interface provides */ 282 u32 capability; 283 284 /* Private data for the current interface */ 285 struct acer_data data; 286 287 /* debugfs entries associated with this interface */ 288 struct acer_debug debug; 289 }; 290 291 /* The static interface pointer, points to the currently detected interface */ 292 static struct wmi_interface *interface; 293 294 /* 295 * Embedded Controller quirks 296 * Some laptops require us to directly access the EC to either enable or query 297 * features that are not available through WMI. 298 */ 299 300 struct quirk_entry { 301 u8 wireless; 302 u8 mailled; 303 s8 brightness; 304 u8 bluetooth; 305 }; 306 307 static struct quirk_entry *quirks; 308 309 static void __init set_quirks(void) 310 { 311 if (quirks->mailled) 312 interface->capability |= ACER_CAP_MAILLED; 313 314 if (quirks->brightness) 315 interface->capability |= ACER_CAP_BRIGHTNESS; 316 } 317 318 static int __init dmi_matched(const struct dmi_system_id *dmi) 319 { 320 quirks = dmi->driver_data; 321 return 1; 322 } 323 324 static int __init set_force_caps(const struct dmi_system_id *dmi) 325 { 326 if (force_caps == -1) { 327 force_caps = (uintptr_t)dmi->driver_data; 328 pr_info("Found %s, set force_caps to 0x%x\n", dmi->ident, force_caps); 329 } 330 return 1; 331 } 332 333 static struct quirk_entry quirk_unknown = { 334 }; 335 336 static struct quirk_entry quirk_acer_aspire_1520 = { 337 .brightness = -1, 338 }; 339 340 static struct quirk_entry quirk_acer_travelmate_2490 = { 341 .mailled = 1, 342 }; 343 344 /* This AMW0 laptop has no bluetooth */ 345 static struct quirk_entry quirk_medion_md_98300 = { 346 .wireless = 1, 347 }; 348 349 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = { 350 .wireless = 2, 351 }; 352 353 static struct quirk_entry quirk_lenovo_ideapad_s205 = { 354 .wireless = 3, 355 }; 356 357 /* The Aspire One has a dummy ACPI-WMI interface - disable it */ 358 static const struct dmi_system_id acer_blacklist[] __initconst = { 359 { 360 .ident = "Acer Aspire One (SSD)", 361 .matches = { 362 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 363 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"), 364 }, 365 }, 366 { 367 .ident = "Acer Aspire One (HDD)", 368 .matches = { 369 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 370 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"), 371 }, 372 }, 373 {} 374 }; 375 376 static const struct dmi_system_id amw0_whitelist[] __initconst = { 377 { 378 .ident = "Acer", 379 .matches = { 380 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 381 }, 382 }, 383 { 384 .ident = "Gateway", 385 .matches = { 386 DMI_MATCH(DMI_SYS_VENDOR, "Gateway"), 387 }, 388 }, 389 { 390 .ident = "Packard Bell", 391 .matches = { 392 DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"), 393 }, 394 }, 395 {} 396 }; 397 398 /* 399 * This quirk table is only for Acer/Gateway/Packard Bell family 400 * that those machines are supported by acer-wmi driver. 401 */ 402 static const struct dmi_system_id acer_quirks[] __initconst = { 403 { 404 .callback = dmi_matched, 405 .ident = "Acer Aspire 1360", 406 .matches = { 407 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 408 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"), 409 }, 410 .driver_data = &quirk_acer_aspire_1520, 411 }, 412 { 413 .callback = dmi_matched, 414 .ident = "Acer Aspire 1520", 415 .matches = { 416 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 417 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"), 418 }, 419 .driver_data = &quirk_acer_aspire_1520, 420 }, 421 { 422 .callback = dmi_matched, 423 .ident = "Acer Aspire 3100", 424 .matches = { 425 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 426 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"), 427 }, 428 .driver_data = &quirk_acer_travelmate_2490, 429 }, 430 { 431 .callback = dmi_matched, 432 .ident = "Acer Aspire 3610", 433 .matches = { 434 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 435 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"), 436 }, 437 .driver_data = &quirk_acer_travelmate_2490, 438 }, 439 { 440 .callback = dmi_matched, 441 .ident = "Acer Aspire 5100", 442 .matches = { 443 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 444 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"), 445 }, 446 .driver_data = &quirk_acer_travelmate_2490, 447 }, 448 { 449 .callback = dmi_matched, 450 .ident = "Acer Aspire 5610", 451 .matches = { 452 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 453 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"), 454 }, 455 .driver_data = &quirk_acer_travelmate_2490, 456 }, 457 { 458 .callback = dmi_matched, 459 .ident = "Acer Aspire 5630", 460 .matches = { 461 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 462 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"), 463 }, 464 .driver_data = &quirk_acer_travelmate_2490, 465 }, 466 { 467 .callback = dmi_matched, 468 .ident = "Acer Aspire 5650", 469 .matches = { 470 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 471 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"), 472 }, 473 .driver_data = &quirk_acer_travelmate_2490, 474 }, 475 { 476 .callback = dmi_matched, 477 .ident = "Acer Aspire 5680", 478 .matches = { 479 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 480 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"), 481 }, 482 .driver_data = &quirk_acer_travelmate_2490, 483 }, 484 { 485 .callback = dmi_matched, 486 .ident = "Acer Aspire 9110", 487 .matches = { 488 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 489 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"), 490 }, 491 .driver_data = &quirk_acer_travelmate_2490, 492 }, 493 { 494 .callback = dmi_matched, 495 .ident = "Acer TravelMate 2490", 496 .matches = { 497 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 498 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"), 499 }, 500 .driver_data = &quirk_acer_travelmate_2490, 501 }, 502 { 503 .callback = dmi_matched, 504 .ident = "Acer TravelMate 4200", 505 .matches = { 506 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 507 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"), 508 }, 509 .driver_data = &quirk_acer_travelmate_2490, 510 }, 511 { 512 .callback = set_force_caps, 513 .ident = "Acer Aspire Switch 10E SW3-016", 514 .matches = { 515 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 516 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW3-016"), 517 }, 518 .driver_data = (void *)ACER_CAP_KBD_DOCK, 519 }, 520 { 521 .callback = set_force_caps, 522 .ident = "Acer Aspire Switch 10 SW5-012", 523 .matches = { 524 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 525 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"), 526 }, 527 .driver_data = (void *)ACER_CAP_KBD_DOCK, 528 }, 529 { 530 .callback = set_force_caps, 531 .ident = "Acer One 10 (S1003)", 532 .matches = { 533 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"), 534 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"), 535 }, 536 .driver_data = (void *)ACER_CAP_KBD_DOCK, 537 }, 538 {} 539 }; 540 541 /* 542 * This quirk list is for those non-acer machines that have AMW0_GUID1 543 * but supported by acer-wmi in past days. Keeping this quirk list here 544 * is only for backward compatible. Please do not add new machine to 545 * here anymore. Those non-acer machines should be supported by 546 * appropriate wmi drivers. 547 */ 548 static const struct dmi_system_id non_acer_quirks[] __initconst = { 549 { 550 .callback = dmi_matched, 551 .ident = "Fujitsu Siemens Amilo Li 1718", 552 .matches = { 553 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 554 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"), 555 }, 556 .driver_data = &quirk_fujitsu_amilo_li_1718, 557 }, 558 { 559 .callback = dmi_matched, 560 .ident = "Medion MD 98300", 561 .matches = { 562 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"), 563 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"), 564 }, 565 .driver_data = &quirk_medion_md_98300, 566 }, 567 { 568 .callback = dmi_matched, 569 .ident = "Lenovo Ideapad S205", 570 .matches = { 571 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 572 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"), 573 }, 574 .driver_data = &quirk_lenovo_ideapad_s205, 575 }, 576 { 577 .callback = dmi_matched, 578 .ident = "Lenovo Ideapad S205 (Brazos)", 579 .matches = { 580 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 581 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"), 582 }, 583 .driver_data = &quirk_lenovo_ideapad_s205, 584 }, 585 { 586 .callback = dmi_matched, 587 .ident = "Lenovo 3000 N200", 588 .matches = { 589 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 590 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"), 591 }, 592 .driver_data = &quirk_fujitsu_amilo_li_1718, 593 }, 594 { 595 .callback = dmi_matched, 596 .ident = "Lenovo Ideapad S205-10382JG", 597 .matches = { 598 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 599 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"), 600 }, 601 .driver_data = &quirk_lenovo_ideapad_s205, 602 }, 603 { 604 .callback = dmi_matched, 605 .ident = "Lenovo Ideapad S205-1038DPG", 606 .matches = { 607 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 608 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"), 609 }, 610 .driver_data = &quirk_lenovo_ideapad_s205, 611 }, 612 {} 613 }; 614 615 static int __init 616 video_set_backlight_video_vendor(const struct dmi_system_id *d) 617 { 618 interface->capability &= ~ACER_CAP_BRIGHTNESS; 619 pr_info("Brightness must be controlled by generic video driver\n"); 620 return 0; 621 } 622 623 static const struct dmi_system_id video_vendor_dmi_table[] __initconst = { 624 { 625 .callback = video_set_backlight_video_vendor, 626 .ident = "Acer TravelMate 4750", 627 .matches = { 628 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), 629 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"), 630 }, 631 }, 632 { 633 .callback = video_set_backlight_video_vendor, 634 .ident = "Acer Extensa 5235", 635 .matches = { 636 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), 637 DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"), 638 }, 639 }, 640 { 641 .callback = video_set_backlight_video_vendor, 642 .ident = "Acer TravelMate 5760", 643 .matches = { 644 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), 645 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"), 646 }, 647 }, 648 { 649 .callback = video_set_backlight_video_vendor, 650 .ident = "Acer Aspire 5750", 651 .matches = { 652 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), 653 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"), 654 }, 655 }, 656 { 657 .callback = video_set_backlight_video_vendor, 658 .ident = "Acer Aspire 5741", 659 .matches = { 660 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), 661 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"), 662 }, 663 }, 664 { 665 /* 666 * Note no video_set_backlight_video_vendor, we must use the 667 * acer interface, as there is no native backlight interface. 668 */ 669 .ident = "Acer KAV80", 670 .matches = { 671 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 672 DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"), 673 }, 674 }, 675 {} 676 }; 677 678 /* Find which quirks are needed for a particular vendor/ model pair */ 679 static void __init find_quirks(void) 680 { 681 if (!force_series) { 682 dmi_check_system(acer_quirks); 683 dmi_check_system(non_acer_quirks); 684 } else if (force_series == 2490) { 685 quirks = &quirk_acer_travelmate_2490; 686 } 687 688 if (quirks == NULL) 689 quirks = &quirk_unknown; 690 } 691 692 /* 693 * General interface convenience methods 694 */ 695 696 static bool has_cap(u32 cap) 697 { 698 return interface->capability & cap; 699 } 700 701 /* 702 * AMW0 (V1) interface 703 */ 704 struct wmab_args { 705 u32 eax; 706 u32 ebx; 707 u32 ecx; 708 u32 edx; 709 }; 710 711 struct wmab_ret { 712 u32 eax; 713 u32 ebx; 714 u32 ecx; 715 u32 edx; 716 u32 eex; 717 }; 718 719 static acpi_status wmab_execute(struct wmab_args *regbuf, 720 struct acpi_buffer *result) 721 { 722 struct acpi_buffer input; 723 acpi_status status; 724 input.length = sizeof(struct wmab_args); 725 input.pointer = (u8 *)regbuf; 726 727 status = wmi_evaluate_method(AMW0_GUID1, 0, 1, &input, result); 728 729 return status; 730 } 731 732 static acpi_status AMW0_get_u32(u32 *value, u32 cap) 733 { 734 int err; 735 u8 result; 736 737 switch (cap) { 738 case ACER_CAP_MAILLED: 739 switch (quirks->mailled) { 740 default: 741 err = ec_read(0xA, &result); 742 if (err) 743 return AE_ERROR; 744 *value = (result >> 7) & 0x1; 745 return AE_OK; 746 } 747 break; 748 case ACER_CAP_WIRELESS: 749 switch (quirks->wireless) { 750 case 1: 751 err = ec_read(0x7B, &result); 752 if (err) 753 return AE_ERROR; 754 *value = result & 0x1; 755 return AE_OK; 756 case 2: 757 err = ec_read(0x71, &result); 758 if (err) 759 return AE_ERROR; 760 *value = result & 0x1; 761 return AE_OK; 762 case 3: 763 err = ec_read(0x78, &result); 764 if (err) 765 return AE_ERROR; 766 *value = result & 0x1; 767 return AE_OK; 768 default: 769 err = ec_read(0xA, &result); 770 if (err) 771 return AE_ERROR; 772 *value = (result >> 2) & 0x1; 773 return AE_OK; 774 } 775 break; 776 case ACER_CAP_BLUETOOTH: 777 switch (quirks->bluetooth) { 778 default: 779 err = ec_read(0xA, &result); 780 if (err) 781 return AE_ERROR; 782 *value = (result >> 4) & 0x1; 783 return AE_OK; 784 } 785 break; 786 case ACER_CAP_BRIGHTNESS: 787 switch (quirks->brightness) { 788 default: 789 err = ec_read(0x83, &result); 790 if (err) 791 return AE_ERROR; 792 *value = result; 793 return AE_OK; 794 } 795 break; 796 default: 797 return AE_ERROR; 798 } 799 return AE_OK; 800 } 801 802 static acpi_status AMW0_set_u32(u32 value, u32 cap) 803 { 804 struct wmab_args args; 805 806 args.eax = ACER_AMW0_WRITE; 807 args.ebx = value ? (1<<8) : 0; 808 args.ecx = args.edx = 0; 809 810 switch (cap) { 811 case ACER_CAP_MAILLED: 812 if (value > 1) 813 return AE_BAD_PARAMETER; 814 args.ebx |= ACER_AMW0_MAILLED_MASK; 815 break; 816 case ACER_CAP_WIRELESS: 817 if (value > 1) 818 return AE_BAD_PARAMETER; 819 args.ebx |= ACER_AMW0_WIRELESS_MASK; 820 break; 821 case ACER_CAP_BLUETOOTH: 822 if (value > 1) 823 return AE_BAD_PARAMETER; 824 args.ebx |= ACER_AMW0_BLUETOOTH_MASK; 825 break; 826 case ACER_CAP_BRIGHTNESS: 827 if (value > max_brightness) 828 return AE_BAD_PARAMETER; 829 switch (quirks->brightness) { 830 default: 831 return ec_write(0x83, value); 832 } 833 default: 834 return AE_ERROR; 835 } 836 837 /* Actually do the set */ 838 return wmab_execute(&args, NULL); 839 } 840 841 static acpi_status __init AMW0_find_mailled(void) 842 { 843 struct wmab_args args; 844 struct wmab_ret ret; 845 acpi_status status = AE_OK; 846 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL }; 847 union acpi_object *obj; 848 849 args.eax = 0x86; 850 args.ebx = args.ecx = args.edx = 0; 851 852 status = wmab_execute(&args, &out); 853 if (ACPI_FAILURE(status)) 854 return status; 855 856 obj = (union acpi_object *) out.pointer; 857 if (obj && obj->type == ACPI_TYPE_BUFFER && 858 obj->buffer.length == sizeof(struct wmab_ret)) { 859 ret = *((struct wmab_ret *) obj->buffer.pointer); 860 } else { 861 kfree(out.pointer); 862 return AE_ERROR; 863 } 864 865 if (ret.eex & 0x1) 866 interface->capability |= ACER_CAP_MAILLED; 867 868 kfree(out.pointer); 869 870 return AE_OK; 871 } 872 873 static const struct acpi_device_id norfkill_ids[] __initconst = { 874 { "VPC2004", 0}, 875 { "IBM0068", 0}, 876 { "LEN0068", 0}, 877 { "SNY5001", 0}, /* sony-laptop in charge */ 878 { "HPQ6601", 0}, 879 { "", 0}, 880 }; 881 882 static int __init AMW0_set_cap_acpi_check_device(void) 883 { 884 const struct acpi_device_id *id; 885 886 for (id = norfkill_ids; id->id[0]; id++) 887 if (acpi_dev_found(id->id)) 888 return true; 889 890 return false; 891 } 892 893 static acpi_status __init AMW0_set_capabilities(void) 894 { 895 struct wmab_args args; 896 struct wmab_ret ret; 897 acpi_status status; 898 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL }; 899 union acpi_object *obj; 900 901 /* 902 * On laptops with this strange GUID (non Acer), normal probing doesn't 903 * work. 904 */ 905 if (wmi_has_guid(AMW0_GUID2)) { 906 if ((quirks != &quirk_unknown) || 907 !AMW0_set_cap_acpi_check_device()) 908 interface->capability |= ACER_CAP_WIRELESS; 909 return AE_OK; 910 } 911 912 args.eax = ACER_AMW0_WRITE; 913 args.ecx = args.edx = 0; 914 915 args.ebx = 0xa2 << 8; 916 args.ebx |= ACER_AMW0_WIRELESS_MASK; 917 918 status = wmab_execute(&args, &out); 919 if (ACPI_FAILURE(status)) 920 return status; 921 922 obj = out.pointer; 923 if (obj && obj->type == ACPI_TYPE_BUFFER && 924 obj->buffer.length == sizeof(struct wmab_ret)) { 925 ret = *((struct wmab_ret *) obj->buffer.pointer); 926 } else { 927 status = AE_ERROR; 928 goto out; 929 } 930 931 if (ret.eax & 0x1) 932 interface->capability |= ACER_CAP_WIRELESS; 933 934 args.ebx = 2 << 8; 935 args.ebx |= ACER_AMW0_BLUETOOTH_MASK; 936 937 /* 938 * It's ok to use existing buffer for next wmab_execute call. 939 * But we need to kfree(out.pointer) if next wmab_execute fail. 940 */ 941 status = wmab_execute(&args, &out); 942 if (ACPI_FAILURE(status)) 943 goto out; 944 945 obj = (union acpi_object *) out.pointer; 946 if (obj && obj->type == ACPI_TYPE_BUFFER 947 && obj->buffer.length == sizeof(struct wmab_ret)) { 948 ret = *((struct wmab_ret *) obj->buffer.pointer); 949 } else { 950 status = AE_ERROR; 951 goto out; 952 } 953 954 if (ret.eax & 0x1) 955 interface->capability |= ACER_CAP_BLUETOOTH; 956 957 /* 958 * This appears to be safe to enable, since all Wistron based laptops 959 * appear to use the same EC register for brightness, even if they 960 * differ for wireless, etc 961 */ 962 if (quirks->brightness >= 0) 963 interface->capability |= ACER_CAP_BRIGHTNESS; 964 965 status = AE_OK; 966 out: 967 kfree(out.pointer); 968 return status; 969 } 970 971 static struct wmi_interface AMW0_interface = { 972 .type = ACER_AMW0, 973 }; 974 975 static struct wmi_interface AMW0_V2_interface = { 976 .type = ACER_AMW0_V2, 977 }; 978 979 /* 980 * New interface (The WMID interface) 981 */ 982 static acpi_status 983 WMI_execute_u32(u32 method_id, u32 in, u32 *out) 984 { 985 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) }; 986 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL }; 987 union acpi_object *obj; 988 u32 tmp = 0; 989 acpi_status status; 990 991 status = wmi_evaluate_method(WMID_GUID1, 0, method_id, &input, &result); 992 993 if (ACPI_FAILURE(status)) 994 return status; 995 996 obj = (union acpi_object *) result.pointer; 997 if (obj) { 998 if (obj->type == ACPI_TYPE_BUFFER && 999 (obj->buffer.length == sizeof(u32) || 1000 obj->buffer.length == sizeof(u64))) { 1001 tmp = *((u32 *) obj->buffer.pointer); 1002 } else if (obj->type == ACPI_TYPE_INTEGER) { 1003 tmp = (u32) obj->integer.value; 1004 } 1005 } 1006 1007 if (out) 1008 *out = tmp; 1009 1010 kfree(result.pointer); 1011 1012 return status; 1013 } 1014 1015 static acpi_status WMID_get_u32(u32 *value, u32 cap) 1016 { 1017 acpi_status status; 1018 u8 tmp; 1019 u32 result, method_id = 0; 1020 1021 switch (cap) { 1022 case ACER_CAP_WIRELESS: 1023 method_id = ACER_WMID_GET_WIRELESS_METHODID; 1024 break; 1025 case ACER_CAP_BLUETOOTH: 1026 method_id = ACER_WMID_GET_BLUETOOTH_METHODID; 1027 break; 1028 case ACER_CAP_BRIGHTNESS: 1029 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID; 1030 break; 1031 case ACER_CAP_THREEG: 1032 method_id = ACER_WMID_GET_THREEG_METHODID; 1033 break; 1034 case ACER_CAP_MAILLED: 1035 if (quirks->mailled == 1) { 1036 ec_read(0x9f, &tmp); 1037 *value = tmp & 0x1; 1038 return 0; 1039 } 1040 fallthrough; 1041 default: 1042 return AE_ERROR; 1043 } 1044 status = WMI_execute_u32(method_id, 0, &result); 1045 1046 if (ACPI_SUCCESS(status)) 1047 *value = (u8)result; 1048 1049 return status; 1050 } 1051 1052 static acpi_status WMID_set_u32(u32 value, u32 cap) 1053 { 1054 u32 method_id = 0; 1055 char param; 1056 1057 switch (cap) { 1058 case ACER_CAP_BRIGHTNESS: 1059 if (value > max_brightness) 1060 return AE_BAD_PARAMETER; 1061 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID; 1062 break; 1063 case ACER_CAP_WIRELESS: 1064 if (value > 1) 1065 return AE_BAD_PARAMETER; 1066 method_id = ACER_WMID_SET_WIRELESS_METHODID; 1067 break; 1068 case ACER_CAP_BLUETOOTH: 1069 if (value > 1) 1070 return AE_BAD_PARAMETER; 1071 method_id = ACER_WMID_SET_BLUETOOTH_METHODID; 1072 break; 1073 case ACER_CAP_THREEG: 1074 if (value > 1) 1075 return AE_BAD_PARAMETER; 1076 method_id = ACER_WMID_SET_THREEG_METHODID; 1077 break; 1078 case ACER_CAP_MAILLED: 1079 if (value > 1) 1080 return AE_BAD_PARAMETER; 1081 if (quirks->mailled == 1) { 1082 param = value ? 0x92 : 0x93; 1083 i8042_lock_chip(); 1084 i8042_command(¶m, 0x1059); 1085 i8042_unlock_chip(); 1086 return 0; 1087 } 1088 break; 1089 default: 1090 return AE_ERROR; 1091 } 1092 return WMI_execute_u32(method_id, (u32)value, NULL); 1093 } 1094 1095 static acpi_status wmid3_get_device_status(u32 *value, u16 device) 1096 { 1097 struct wmid3_gds_return_value return_value; 1098 acpi_status status; 1099 union acpi_object *obj; 1100 struct wmid3_gds_get_input_param params = { 1101 .function_num = 0x1, 1102 .hotkey_number = commun_fn_key_number, 1103 .devices = device, 1104 }; 1105 struct acpi_buffer input = { 1106 sizeof(struct wmid3_gds_get_input_param), 1107 ¶ms 1108 }; 1109 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; 1110 1111 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output); 1112 if (ACPI_FAILURE(status)) 1113 return status; 1114 1115 obj = output.pointer; 1116 1117 if (!obj) 1118 return AE_ERROR; 1119 else if (obj->type != ACPI_TYPE_BUFFER) { 1120 kfree(obj); 1121 return AE_ERROR; 1122 } 1123 if (obj->buffer.length != 8) { 1124 pr_warn("Unknown buffer length %d\n", obj->buffer.length); 1125 kfree(obj); 1126 return AE_ERROR; 1127 } 1128 1129 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer); 1130 kfree(obj); 1131 1132 if (return_value.error_code || return_value.ec_return_value) 1133 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n", 1134 device, 1135 return_value.error_code, 1136 return_value.ec_return_value); 1137 else 1138 *value = !!(return_value.devices & device); 1139 1140 return status; 1141 } 1142 1143 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap) 1144 { 1145 u16 device; 1146 1147 switch (cap) { 1148 case ACER_CAP_WIRELESS: 1149 device = ACER_WMID3_GDS_WIRELESS; 1150 break; 1151 case ACER_CAP_BLUETOOTH: 1152 device = ACER_WMID3_GDS_BLUETOOTH; 1153 break; 1154 case ACER_CAP_THREEG: 1155 device = ACER_WMID3_GDS_THREEG; 1156 break; 1157 default: 1158 return AE_ERROR; 1159 } 1160 return wmid3_get_device_status(value, device); 1161 } 1162 1163 static acpi_status wmid3_set_device_status(u32 value, u16 device) 1164 { 1165 struct wmid3_gds_return_value return_value; 1166 acpi_status status; 1167 union acpi_object *obj; 1168 u16 devices; 1169 struct wmid3_gds_get_input_param get_params = { 1170 .function_num = 0x1, 1171 .hotkey_number = commun_fn_key_number, 1172 .devices = commun_func_bitmap, 1173 }; 1174 struct acpi_buffer get_input = { 1175 sizeof(struct wmid3_gds_get_input_param), 1176 &get_params 1177 }; 1178 struct wmid3_gds_set_input_param set_params = { 1179 .function_num = 0x2, 1180 .hotkey_number = commun_fn_key_number, 1181 .devices = commun_func_bitmap, 1182 }; 1183 struct acpi_buffer set_input = { 1184 sizeof(struct wmid3_gds_set_input_param), 1185 &set_params 1186 }; 1187 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; 1188 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL }; 1189 1190 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output); 1191 if (ACPI_FAILURE(status)) 1192 return status; 1193 1194 obj = output.pointer; 1195 1196 if (!obj) 1197 return AE_ERROR; 1198 else if (obj->type != ACPI_TYPE_BUFFER) { 1199 kfree(obj); 1200 return AE_ERROR; 1201 } 1202 if (obj->buffer.length != 8) { 1203 pr_warn("Unknown buffer length %d\n", obj->buffer.length); 1204 kfree(obj); 1205 return AE_ERROR; 1206 } 1207 1208 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer); 1209 kfree(obj); 1210 1211 if (return_value.error_code || return_value.ec_return_value) { 1212 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n", 1213 return_value.error_code, 1214 return_value.ec_return_value); 1215 return status; 1216 } 1217 1218 devices = return_value.devices; 1219 set_params.devices = (value) ? (devices | device) : (devices & ~device); 1220 1221 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2); 1222 if (ACPI_FAILURE(status)) 1223 return status; 1224 1225 obj = output2.pointer; 1226 1227 if (!obj) 1228 return AE_ERROR; 1229 else if (obj->type != ACPI_TYPE_BUFFER) { 1230 kfree(obj); 1231 return AE_ERROR; 1232 } 1233 if (obj->buffer.length != 4) { 1234 pr_warn("Unknown buffer length %d\n", obj->buffer.length); 1235 kfree(obj); 1236 return AE_ERROR; 1237 } 1238 1239 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer); 1240 kfree(obj); 1241 1242 if (return_value.error_code || return_value.ec_return_value) 1243 pr_warn("Set Device Status failed: 0x%x - 0x%x\n", 1244 return_value.error_code, 1245 return_value.ec_return_value); 1246 1247 return status; 1248 } 1249 1250 static acpi_status wmid_v2_set_u32(u32 value, u32 cap) 1251 { 1252 u16 device; 1253 1254 switch (cap) { 1255 case ACER_CAP_WIRELESS: 1256 device = ACER_WMID3_GDS_WIRELESS; 1257 break; 1258 case ACER_CAP_BLUETOOTH: 1259 device = ACER_WMID3_GDS_BLUETOOTH; 1260 break; 1261 case ACER_CAP_THREEG: 1262 device = ACER_WMID3_GDS_THREEG; 1263 break; 1264 default: 1265 return AE_ERROR; 1266 } 1267 return wmid3_set_device_status(value, device); 1268 } 1269 1270 static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d) 1271 { 1272 struct hotkey_function_type_aa *type_aa; 1273 1274 /* We are looking for OEM-specific Type AAh */ 1275 if (header->type != 0xAA) 1276 return; 1277 1278 has_type_aa = true; 1279 type_aa = (struct hotkey_function_type_aa *) header; 1280 1281 pr_info("Function bitmap for Communication Button: 0x%x\n", 1282 type_aa->commun_func_bitmap); 1283 commun_func_bitmap = type_aa->commun_func_bitmap; 1284 1285 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS) 1286 interface->capability |= ACER_CAP_WIRELESS; 1287 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG) 1288 interface->capability |= ACER_CAP_THREEG; 1289 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH) 1290 interface->capability |= ACER_CAP_BLUETOOTH; 1291 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_RFBTN) 1292 commun_func_bitmap &= ~ACER_WMID3_GDS_RFBTN; 1293 1294 commun_fn_key_number = type_aa->commun_fn_key_number; 1295 } 1296 1297 static acpi_status __init WMID_set_capabilities(void) 1298 { 1299 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL}; 1300 union acpi_object *obj; 1301 acpi_status status; 1302 u32 devices; 1303 1304 status = wmi_query_block(WMID_GUID2, 0, &out); 1305 if (ACPI_FAILURE(status)) 1306 return status; 1307 1308 obj = (union acpi_object *) out.pointer; 1309 if (obj) { 1310 if (obj->type == ACPI_TYPE_BUFFER && 1311 (obj->buffer.length == sizeof(u32) || 1312 obj->buffer.length == sizeof(u64))) { 1313 devices = *((u32 *) obj->buffer.pointer); 1314 } else if (obj->type == ACPI_TYPE_INTEGER) { 1315 devices = (u32) obj->integer.value; 1316 } else { 1317 kfree(out.pointer); 1318 return AE_ERROR; 1319 } 1320 } else { 1321 kfree(out.pointer); 1322 return AE_ERROR; 1323 } 1324 1325 pr_info("Function bitmap for Communication Device: 0x%x\n", devices); 1326 if (devices & 0x07) 1327 interface->capability |= ACER_CAP_WIRELESS; 1328 if (devices & 0x40) 1329 interface->capability |= ACER_CAP_THREEG; 1330 if (devices & 0x10) 1331 interface->capability |= ACER_CAP_BLUETOOTH; 1332 1333 if (!(devices & 0x20)) 1334 max_brightness = 0x9; 1335 1336 kfree(out.pointer); 1337 return status; 1338 } 1339 1340 static struct wmi_interface wmid_interface = { 1341 .type = ACER_WMID, 1342 }; 1343 1344 static struct wmi_interface wmid_v2_interface = { 1345 .type = ACER_WMID_v2, 1346 }; 1347 1348 /* 1349 * Generic Device (interface-independent) 1350 */ 1351 1352 static acpi_status get_u32(u32 *value, u32 cap) 1353 { 1354 acpi_status status = AE_ERROR; 1355 1356 switch (interface->type) { 1357 case ACER_AMW0: 1358 status = AMW0_get_u32(value, cap); 1359 break; 1360 case ACER_AMW0_V2: 1361 if (cap == ACER_CAP_MAILLED) { 1362 status = AMW0_get_u32(value, cap); 1363 break; 1364 } 1365 fallthrough; 1366 case ACER_WMID: 1367 status = WMID_get_u32(value, cap); 1368 break; 1369 case ACER_WMID_v2: 1370 if (cap & (ACER_CAP_WIRELESS | 1371 ACER_CAP_BLUETOOTH | 1372 ACER_CAP_THREEG)) 1373 status = wmid_v2_get_u32(value, cap); 1374 else if (wmi_has_guid(WMID_GUID2)) 1375 status = WMID_get_u32(value, cap); 1376 break; 1377 } 1378 1379 return status; 1380 } 1381 1382 static acpi_status set_u32(u32 value, u32 cap) 1383 { 1384 acpi_status status; 1385 1386 if (interface->capability & cap) { 1387 switch (interface->type) { 1388 case ACER_AMW0: 1389 return AMW0_set_u32(value, cap); 1390 case ACER_AMW0_V2: 1391 if (cap == ACER_CAP_MAILLED) 1392 return AMW0_set_u32(value, cap); 1393 1394 /* 1395 * On some models, some WMID methods don't toggle 1396 * properly. For those cases, we want to run the AMW0 1397 * method afterwards to be certain we've really toggled 1398 * the device state. 1399 */ 1400 if (cap == ACER_CAP_WIRELESS || 1401 cap == ACER_CAP_BLUETOOTH) { 1402 status = WMID_set_u32(value, cap); 1403 if (ACPI_FAILURE(status)) 1404 return status; 1405 1406 return AMW0_set_u32(value, cap); 1407 } 1408 fallthrough; 1409 case ACER_WMID: 1410 return WMID_set_u32(value, cap); 1411 case ACER_WMID_v2: 1412 if (cap & (ACER_CAP_WIRELESS | 1413 ACER_CAP_BLUETOOTH | 1414 ACER_CAP_THREEG)) 1415 return wmid_v2_set_u32(value, cap); 1416 else if (wmi_has_guid(WMID_GUID2)) 1417 return WMID_set_u32(value, cap); 1418 fallthrough; 1419 default: 1420 return AE_BAD_PARAMETER; 1421 } 1422 } 1423 return AE_BAD_PARAMETER; 1424 } 1425 1426 static void __init acer_commandline_init(void) 1427 { 1428 /* 1429 * These will all fail silently if the value given is invalid, or the 1430 * capability isn't available on the given interface 1431 */ 1432 if (mailled >= 0) 1433 set_u32(mailled, ACER_CAP_MAILLED); 1434 if (!has_type_aa && threeg >= 0) 1435 set_u32(threeg, ACER_CAP_THREEG); 1436 if (brightness >= 0) 1437 set_u32(brightness, ACER_CAP_BRIGHTNESS); 1438 } 1439 1440 /* 1441 * LED device (Mail LED only, no other LEDs known yet) 1442 */ 1443 static void mail_led_set(struct led_classdev *led_cdev, 1444 enum led_brightness value) 1445 { 1446 set_u32(value, ACER_CAP_MAILLED); 1447 } 1448 1449 static struct led_classdev mail_led = { 1450 .name = "acer-wmi::mail", 1451 .brightness_set = mail_led_set, 1452 }; 1453 1454 static int acer_led_init(struct device *dev) 1455 { 1456 return led_classdev_register(dev, &mail_led); 1457 } 1458 1459 static void acer_led_exit(void) 1460 { 1461 set_u32(LED_OFF, ACER_CAP_MAILLED); 1462 led_classdev_unregister(&mail_led); 1463 } 1464 1465 /* 1466 * Backlight device 1467 */ 1468 static struct backlight_device *acer_backlight_device; 1469 1470 static int read_brightness(struct backlight_device *bd) 1471 { 1472 u32 value; 1473 get_u32(&value, ACER_CAP_BRIGHTNESS); 1474 return value; 1475 } 1476 1477 static int update_bl_status(struct backlight_device *bd) 1478 { 1479 int intensity = bd->props.brightness; 1480 1481 if (bd->props.power != FB_BLANK_UNBLANK) 1482 intensity = 0; 1483 if (bd->props.fb_blank != FB_BLANK_UNBLANK) 1484 intensity = 0; 1485 1486 set_u32(intensity, ACER_CAP_BRIGHTNESS); 1487 1488 return 0; 1489 } 1490 1491 static const struct backlight_ops acer_bl_ops = { 1492 .get_brightness = read_brightness, 1493 .update_status = update_bl_status, 1494 }; 1495 1496 static int acer_backlight_init(struct device *dev) 1497 { 1498 struct backlight_properties props; 1499 struct backlight_device *bd; 1500 1501 memset(&props, 0, sizeof(struct backlight_properties)); 1502 props.type = BACKLIGHT_PLATFORM; 1503 props.max_brightness = max_brightness; 1504 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops, 1505 &props); 1506 if (IS_ERR(bd)) { 1507 pr_err("Could not register Acer backlight device\n"); 1508 acer_backlight_device = NULL; 1509 return PTR_ERR(bd); 1510 } 1511 1512 acer_backlight_device = bd; 1513 1514 bd->props.power = FB_BLANK_UNBLANK; 1515 bd->props.brightness = read_brightness(bd); 1516 backlight_update_status(bd); 1517 return 0; 1518 } 1519 1520 static void acer_backlight_exit(void) 1521 { 1522 backlight_device_unregister(acer_backlight_device); 1523 } 1524 1525 /* 1526 * Accelerometer device 1527 */ 1528 static acpi_handle gsensor_handle; 1529 1530 static int acer_gsensor_init(void) 1531 { 1532 acpi_status status; 1533 struct acpi_buffer output; 1534 union acpi_object out_obj; 1535 1536 output.length = sizeof(out_obj); 1537 output.pointer = &out_obj; 1538 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output); 1539 if (ACPI_FAILURE(status)) 1540 return -1; 1541 1542 return 0; 1543 } 1544 1545 static int acer_gsensor_open(struct input_dev *input) 1546 { 1547 return acer_gsensor_init(); 1548 } 1549 1550 static int acer_gsensor_event(void) 1551 { 1552 acpi_status status; 1553 struct acpi_buffer output; 1554 union acpi_object out_obj[5]; 1555 1556 if (!acer_wmi_accel_dev) 1557 return -1; 1558 1559 output.length = sizeof(out_obj); 1560 output.pointer = out_obj; 1561 1562 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output); 1563 if (ACPI_FAILURE(status)) 1564 return -1; 1565 1566 if (out_obj->package.count != 4) 1567 return -1; 1568 1569 input_report_abs(acer_wmi_accel_dev, ABS_X, 1570 (s16)out_obj->package.elements[0].integer.value); 1571 input_report_abs(acer_wmi_accel_dev, ABS_Y, 1572 (s16)out_obj->package.elements[1].integer.value); 1573 input_report_abs(acer_wmi_accel_dev, ABS_Z, 1574 (s16)out_obj->package.elements[2].integer.value); 1575 input_sync(acer_wmi_accel_dev); 1576 return 0; 1577 } 1578 1579 /* 1580 * Switch series keyboard dock status 1581 */ 1582 static int acer_kbd_dock_state_to_sw_tablet_mode(u8 kbd_dock_state) 1583 { 1584 switch (kbd_dock_state) { 1585 case 0x01: /* Docked, traditional clamshell laptop mode */ 1586 return 0; 1587 case 0x04: /* Stand-alone tablet */ 1588 case 0x40: /* Docked, tent mode, keyboard not usable */ 1589 return 1; 1590 default: 1591 pr_warn("Unknown kbd_dock_state 0x%02x\n", kbd_dock_state); 1592 } 1593 1594 return 0; 1595 } 1596 1597 static void acer_kbd_dock_get_initial_state(void) 1598 { 1599 u8 *output, input[8] = { 0x05, 0x00, }; 1600 struct acpi_buffer input_buf = { sizeof(input), input }; 1601 struct acpi_buffer output_buf = { ACPI_ALLOCATE_BUFFER, NULL }; 1602 union acpi_object *obj; 1603 acpi_status status; 1604 int sw_tablet_mode; 1605 1606 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input_buf, &output_buf); 1607 if (ACPI_FAILURE(status)) { 1608 ACPI_EXCEPTION((AE_INFO, status, "Error getting keyboard-dock initial 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(¶ms, &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(¶ms, &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(¶ms, &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); 2402