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 MODULE_AUTHOR("Carlos Corbacho"); 34 MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver"); 35 MODULE_LICENSE("GPL"); 36 37 /* 38 * Magic Number 39 * Meaning is unknown - this number is required for writing to ACPI for AMW0 40 * (it's also used in acerhk when directly accessing the BIOS) 41 */ 42 #define ACER_AMW0_WRITE 0x9610 43 44 /* 45 * Bit masks for the AMW0 interface 46 */ 47 #define ACER_AMW0_WIRELESS_MASK 0x35 48 #define ACER_AMW0_BLUETOOTH_MASK 0x34 49 #define ACER_AMW0_MAILLED_MASK 0x31 50 51 /* 52 * Method IDs for WMID interface 53 */ 54 #define ACER_WMID_GET_WIRELESS_METHODID 1 55 #define ACER_WMID_GET_BLUETOOTH_METHODID 2 56 #define ACER_WMID_GET_BRIGHTNESS_METHODID 3 57 #define ACER_WMID_SET_WIRELESS_METHODID 4 58 #define ACER_WMID_SET_BLUETOOTH_METHODID 5 59 #define ACER_WMID_SET_BRIGHTNESS_METHODID 6 60 #define ACER_WMID_GET_THREEG_METHODID 10 61 #define ACER_WMID_SET_THREEG_METHODID 11 62 63 /* 64 * Acer ACPI method GUIDs 65 */ 66 #define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB" 67 #define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C" 68 #define WMID_GUID1 "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3" 69 #define WMID_GUID2 "95764E09-FB56-4E83-B31A-37761F60994A" 70 #define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531" 71 72 /* 73 * Acer ACPI event GUIDs 74 */ 75 #define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026" 76 77 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB"); 78 MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"); 79 MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026"); 80 81 enum acer_wmi_event_ids { 82 WMID_HOTKEY_EVENT = 0x1, 83 WMID_ACCEL_EVENT = 0x5, 84 }; 85 86 static const struct key_entry acer_wmi_keymap[] __initconst = { 87 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */ 88 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */ 89 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */ 90 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */ 91 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */ 92 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */ 93 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */ 94 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */ 95 {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */ 96 {KE_IGNORE, 0x41, {KEY_MUTE} }, 97 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} }, 98 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} }, 99 {KE_IGNORE, 0x43, {KEY_NEXTSONG} }, 100 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} }, 101 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} }, 102 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} }, 103 {KE_IGNORE, 0x45, {KEY_STOP} }, 104 {KE_IGNORE, 0x50, {KEY_STOP} }, 105 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} }, 106 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} }, 107 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} }, 108 {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} }, 109 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} }, 110 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} }, 111 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */ 112 {KE_IGNORE, 0x81, {KEY_SLEEP} }, 113 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */ 114 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} }, 115 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} }, 116 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} }, 117 {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} }, 118 {KE_KEY, 0x86, {KEY_WLAN} }, 119 {KE_KEY, 0x87, {KEY_POWER} }, 120 {KE_END, 0} 121 }; 122 123 static struct input_dev *acer_wmi_input_dev; 124 static struct input_dev *acer_wmi_accel_dev; 125 126 struct event_return_value { 127 u8 function; 128 u8 key_num; 129 u16 device_state; 130 u32 reserved; 131 } __attribute__((packed)); 132 133 /* 134 * GUID3 Get Device Status device flags 135 */ 136 #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */ 137 #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */ 138 #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */ 139 #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */ 140 #define ACER_WMID3_GDS_RFBTN (1<<14) /* RF Button */ 141 142 #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */ 143 144 /* Hotkey Customized Setting and Acer Application Status. 145 * Set Device Default Value and Report Acer Application Status. 146 * When Acer Application starts, it will run this method to inform 147 * BIOS/EC that Acer Application is on. 148 * App Status 149 * Bit[0]: Launch Manager Status 150 * Bit[1]: ePM Status 151 * Bit[2]: Device Control Status 152 * Bit[3]: Acer Power Button Utility Status 153 * Bit[4]: RF Button Status 154 * Bit[5]: ODD PM Status 155 * Bit[6]: Device Default Value Control 156 * Bit[7]: Hall Sensor Application Status 157 */ 158 struct func_input_params { 159 u8 function_num; /* Function Number */ 160 u16 commun_devices; /* Communication type devices default status */ 161 u16 devices; /* Other type devices default status */ 162 u8 app_status; /* Acer Device Status. LM, ePM, RF Button... */ 163 u8 app_mask; /* Bit mask to app_status */ 164 u8 reserved; 165 } __attribute__((packed)); 166 167 struct func_return_value { 168 u8 error_code; /* Error Code */ 169 u8 ec_return_value; /* EC Return Value */ 170 u16 reserved; 171 } __attribute__((packed)); 172 173 struct wmid3_gds_set_input_param { /* Set Device Status input parameter */ 174 u8 function_num; /* Function Number */ 175 u8 hotkey_number; /* Hotkey Number */ 176 u16 devices; /* Set Device */ 177 u8 volume_value; /* Volume Value */ 178 } __attribute__((packed)); 179 180 struct wmid3_gds_get_input_param { /* Get Device Status input parameter */ 181 u8 function_num; /* Function Number */ 182 u8 hotkey_number; /* Hotkey Number */ 183 u16 devices; /* Get Device */ 184 } __attribute__((packed)); 185 186 struct wmid3_gds_return_value { /* Get Device Status return value*/ 187 u8 error_code; /* Error Code */ 188 u8 ec_return_value; /* EC Return Value */ 189 u16 devices; /* Current Device Status */ 190 u32 reserved; 191 } __attribute__((packed)); 192 193 struct hotkey_function_type_aa { 194 u8 type; 195 u8 length; 196 u16 handle; 197 u16 commun_func_bitmap; 198 u16 application_func_bitmap; 199 u16 media_func_bitmap; 200 u16 display_func_bitmap; 201 u16 others_func_bitmap; 202 u8 commun_fn_key_number; 203 } __attribute__((packed)); 204 205 /* 206 * Interface capability flags 207 */ 208 #define ACER_CAP_MAILLED (1<<0) 209 #define ACER_CAP_WIRELESS (1<<1) 210 #define ACER_CAP_BLUETOOTH (1<<2) 211 #define ACER_CAP_BRIGHTNESS (1<<3) 212 #define ACER_CAP_THREEG (1<<4) 213 #define ACER_CAP_ACCEL (1<<5) 214 #define ACER_CAP_RFBTN (1<<6) 215 #define ACER_CAP_ANY (0xFFFFFFFF) 216 217 /* 218 * Interface type flags 219 */ 220 enum interface_flags { 221 ACER_AMW0, 222 ACER_AMW0_V2, 223 ACER_WMID, 224 ACER_WMID_v2, 225 }; 226 227 #define ACER_DEFAULT_WIRELESS 0 228 #define ACER_DEFAULT_BLUETOOTH 0 229 #define ACER_DEFAULT_MAILLED 0 230 #define ACER_DEFAULT_THREEG 0 231 232 static int max_brightness = 0xF; 233 234 static int mailled = -1; 235 static int brightness = -1; 236 static int threeg = -1; 237 static int force_series; 238 static bool ec_raw_mode; 239 static bool has_type_aa; 240 static u16 commun_func_bitmap; 241 static u8 commun_fn_key_number; 242 243 module_param(mailled, int, 0444); 244 module_param(brightness, int, 0444); 245 module_param(threeg, int, 0444); 246 module_param(force_series, int, 0444); 247 module_param(ec_raw_mode, bool, 0444); 248 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED"); 249 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness"); 250 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware"); 251 MODULE_PARM_DESC(force_series, "Force a different laptop series"); 252 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode"); 253 254 struct acer_data { 255 int mailled; 256 int threeg; 257 int brightness; 258 }; 259 260 struct acer_debug { 261 struct dentry *root; 262 u32 wmid_devices; 263 }; 264 265 static struct rfkill *wireless_rfkill; 266 static struct rfkill *bluetooth_rfkill; 267 static struct rfkill *threeg_rfkill; 268 static bool rfkill_inited; 269 270 /* Each low-level interface must define at least some of the following */ 271 struct wmi_interface { 272 /* The WMI device type */ 273 u32 type; 274 275 /* The capabilities this interface provides */ 276 u32 capability; 277 278 /* Private data for the current interface */ 279 struct acer_data data; 280 281 /* debugfs entries associated with this interface */ 282 struct acer_debug debug; 283 }; 284 285 /* The static interface pointer, points to the currently detected interface */ 286 static struct wmi_interface *interface; 287 288 /* 289 * Embedded Controller quirks 290 * Some laptops require us to directly access the EC to either enable or query 291 * features that are not available through WMI. 292 */ 293 294 struct quirk_entry { 295 u8 wireless; 296 u8 mailled; 297 s8 brightness; 298 u8 bluetooth; 299 }; 300 301 static struct quirk_entry *quirks; 302 303 static void __init set_quirks(void) 304 { 305 if (!interface) 306 return; 307 308 if (quirks->mailled) 309 interface->capability |= ACER_CAP_MAILLED; 310 311 if (quirks->brightness) 312 interface->capability |= ACER_CAP_BRIGHTNESS; 313 } 314 315 static int __init dmi_matched(const struct dmi_system_id *dmi) 316 { 317 quirks = dmi->driver_data; 318 return 1; 319 } 320 321 static struct quirk_entry quirk_unknown = { 322 }; 323 324 static struct quirk_entry quirk_acer_aspire_1520 = { 325 .brightness = -1, 326 }; 327 328 static struct quirk_entry quirk_acer_travelmate_2490 = { 329 .mailled = 1, 330 }; 331 332 /* This AMW0 laptop has no bluetooth */ 333 static struct quirk_entry quirk_medion_md_98300 = { 334 .wireless = 1, 335 }; 336 337 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = { 338 .wireless = 2, 339 }; 340 341 static struct quirk_entry quirk_lenovo_ideapad_s205 = { 342 .wireless = 3, 343 }; 344 345 /* The Aspire One has a dummy ACPI-WMI interface - disable it */ 346 static const struct dmi_system_id acer_blacklist[] __initconst = { 347 { 348 .ident = "Acer Aspire One (SSD)", 349 .matches = { 350 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 351 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"), 352 }, 353 }, 354 { 355 .ident = "Acer Aspire One (HDD)", 356 .matches = { 357 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 358 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"), 359 }, 360 }, 361 {} 362 }; 363 364 static const struct dmi_system_id amw0_whitelist[] __initconst = { 365 { 366 .ident = "Acer", 367 .matches = { 368 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 369 }, 370 }, 371 { 372 .ident = "Gateway", 373 .matches = { 374 DMI_MATCH(DMI_SYS_VENDOR, "Gateway"), 375 }, 376 }, 377 { 378 .ident = "Packard Bell", 379 .matches = { 380 DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"), 381 }, 382 }, 383 {} 384 }; 385 386 /* 387 * This quirk table is only for Acer/Gateway/Packard Bell family 388 * that those machines are supported by acer-wmi driver. 389 */ 390 static const struct dmi_system_id acer_quirks[] __initconst = { 391 { 392 .callback = dmi_matched, 393 .ident = "Acer Aspire 1360", 394 .matches = { 395 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 396 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"), 397 }, 398 .driver_data = &quirk_acer_aspire_1520, 399 }, 400 { 401 .callback = dmi_matched, 402 .ident = "Acer Aspire 1520", 403 .matches = { 404 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 405 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"), 406 }, 407 .driver_data = &quirk_acer_aspire_1520, 408 }, 409 { 410 .callback = dmi_matched, 411 .ident = "Acer Aspire 3100", 412 .matches = { 413 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 414 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"), 415 }, 416 .driver_data = &quirk_acer_travelmate_2490, 417 }, 418 { 419 .callback = dmi_matched, 420 .ident = "Acer Aspire 3610", 421 .matches = { 422 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 423 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"), 424 }, 425 .driver_data = &quirk_acer_travelmate_2490, 426 }, 427 { 428 .callback = dmi_matched, 429 .ident = "Acer Aspire 5100", 430 .matches = { 431 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 432 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"), 433 }, 434 .driver_data = &quirk_acer_travelmate_2490, 435 }, 436 { 437 .callback = dmi_matched, 438 .ident = "Acer Aspire 5610", 439 .matches = { 440 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 441 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"), 442 }, 443 .driver_data = &quirk_acer_travelmate_2490, 444 }, 445 { 446 .callback = dmi_matched, 447 .ident = "Acer Aspire 5630", 448 .matches = { 449 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 450 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"), 451 }, 452 .driver_data = &quirk_acer_travelmate_2490, 453 }, 454 { 455 .callback = dmi_matched, 456 .ident = "Acer Aspire 5650", 457 .matches = { 458 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 459 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"), 460 }, 461 .driver_data = &quirk_acer_travelmate_2490, 462 }, 463 { 464 .callback = dmi_matched, 465 .ident = "Acer Aspire 5680", 466 .matches = { 467 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 468 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"), 469 }, 470 .driver_data = &quirk_acer_travelmate_2490, 471 }, 472 { 473 .callback = dmi_matched, 474 .ident = "Acer Aspire 9110", 475 .matches = { 476 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 477 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"), 478 }, 479 .driver_data = &quirk_acer_travelmate_2490, 480 }, 481 { 482 .callback = dmi_matched, 483 .ident = "Acer TravelMate 2490", 484 .matches = { 485 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 486 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"), 487 }, 488 .driver_data = &quirk_acer_travelmate_2490, 489 }, 490 { 491 .callback = dmi_matched, 492 .ident = "Acer TravelMate 4200", 493 .matches = { 494 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 495 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"), 496 }, 497 .driver_data = &quirk_acer_travelmate_2490, 498 }, 499 {} 500 }; 501 502 /* 503 * This quirk list is for those non-acer machines that have AMW0_GUID1 504 * but supported by acer-wmi in past days. Keeping this quirk list here 505 * is only for backward compatible. Please do not add new machine to 506 * here anymore. Those non-acer machines should be supported by 507 * appropriate wmi drivers. 508 */ 509 static const struct dmi_system_id non_acer_quirks[] __initconst = { 510 { 511 .callback = dmi_matched, 512 .ident = "Fujitsu Siemens Amilo Li 1718", 513 .matches = { 514 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 515 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"), 516 }, 517 .driver_data = &quirk_fujitsu_amilo_li_1718, 518 }, 519 { 520 .callback = dmi_matched, 521 .ident = "Medion MD 98300", 522 .matches = { 523 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"), 524 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"), 525 }, 526 .driver_data = &quirk_medion_md_98300, 527 }, 528 { 529 .callback = dmi_matched, 530 .ident = "Lenovo Ideapad S205", 531 .matches = { 532 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 533 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"), 534 }, 535 .driver_data = &quirk_lenovo_ideapad_s205, 536 }, 537 { 538 .callback = dmi_matched, 539 .ident = "Lenovo Ideapad S205 (Brazos)", 540 .matches = { 541 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 542 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"), 543 }, 544 .driver_data = &quirk_lenovo_ideapad_s205, 545 }, 546 { 547 .callback = dmi_matched, 548 .ident = "Lenovo 3000 N200", 549 .matches = { 550 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 551 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"), 552 }, 553 .driver_data = &quirk_fujitsu_amilo_li_1718, 554 }, 555 { 556 .callback = dmi_matched, 557 .ident = "Lenovo Ideapad S205-10382JG", 558 .matches = { 559 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 560 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"), 561 }, 562 .driver_data = &quirk_lenovo_ideapad_s205, 563 }, 564 { 565 .callback = dmi_matched, 566 .ident = "Lenovo Ideapad S205-1038DPG", 567 .matches = { 568 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 569 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"), 570 }, 571 .driver_data = &quirk_lenovo_ideapad_s205, 572 }, 573 {} 574 }; 575 576 static int __init 577 video_set_backlight_video_vendor(const struct dmi_system_id *d) 578 { 579 interface->capability &= ~ACER_CAP_BRIGHTNESS; 580 pr_info("Brightness must be controlled by generic video driver\n"); 581 return 0; 582 } 583 584 static const struct dmi_system_id video_vendor_dmi_table[] __initconst = { 585 { 586 .callback = video_set_backlight_video_vendor, 587 .ident = "Acer TravelMate 4750", 588 .matches = { 589 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), 590 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"), 591 }, 592 }, 593 { 594 .callback = video_set_backlight_video_vendor, 595 .ident = "Acer Extensa 5235", 596 .matches = { 597 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), 598 DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"), 599 }, 600 }, 601 { 602 .callback = video_set_backlight_video_vendor, 603 .ident = "Acer TravelMate 5760", 604 .matches = { 605 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), 606 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"), 607 }, 608 }, 609 { 610 .callback = video_set_backlight_video_vendor, 611 .ident = "Acer Aspire 5750", 612 .matches = { 613 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), 614 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"), 615 }, 616 }, 617 { 618 .callback = video_set_backlight_video_vendor, 619 .ident = "Acer Aspire 5741", 620 .matches = { 621 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), 622 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"), 623 }, 624 }, 625 { 626 /* 627 * Note no video_set_backlight_video_vendor, we must use the 628 * acer interface, as there is no native backlight interface. 629 */ 630 .ident = "Acer KAV80", 631 .matches = { 632 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 633 DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"), 634 }, 635 }, 636 {} 637 }; 638 639 /* Find which quirks are needed for a particular vendor/ model pair */ 640 static void __init find_quirks(void) 641 { 642 if (!force_series) { 643 dmi_check_system(acer_quirks); 644 dmi_check_system(non_acer_quirks); 645 } else if (force_series == 2490) { 646 quirks = &quirk_acer_travelmate_2490; 647 } 648 649 if (quirks == NULL) 650 quirks = &quirk_unknown; 651 652 set_quirks(); 653 } 654 655 /* 656 * General interface convenience methods 657 */ 658 659 static bool has_cap(u32 cap) 660 { 661 return interface->capability & cap; 662 } 663 664 /* 665 * AMW0 (V1) interface 666 */ 667 struct wmab_args { 668 u32 eax; 669 u32 ebx; 670 u32 ecx; 671 u32 edx; 672 }; 673 674 struct wmab_ret { 675 u32 eax; 676 u32 ebx; 677 u32 ecx; 678 u32 edx; 679 u32 eex; 680 }; 681 682 static acpi_status wmab_execute(struct wmab_args *regbuf, 683 struct acpi_buffer *result) 684 { 685 struct acpi_buffer input; 686 acpi_status status; 687 input.length = sizeof(struct wmab_args); 688 input.pointer = (u8 *)regbuf; 689 690 status = wmi_evaluate_method(AMW0_GUID1, 0, 1, &input, result); 691 692 return status; 693 } 694 695 static acpi_status AMW0_get_u32(u32 *value, u32 cap) 696 { 697 int err; 698 u8 result; 699 700 switch (cap) { 701 case ACER_CAP_MAILLED: 702 switch (quirks->mailled) { 703 default: 704 err = ec_read(0xA, &result); 705 if (err) 706 return AE_ERROR; 707 *value = (result >> 7) & 0x1; 708 return AE_OK; 709 } 710 break; 711 case ACER_CAP_WIRELESS: 712 switch (quirks->wireless) { 713 case 1: 714 err = ec_read(0x7B, &result); 715 if (err) 716 return AE_ERROR; 717 *value = result & 0x1; 718 return AE_OK; 719 case 2: 720 err = ec_read(0x71, &result); 721 if (err) 722 return AE_ERROR; 723 *value = result & 0x1; 724 return AE_OK; 725 case 3: 726 err = ec_read(0x78, &result); 727 if (err) 728 return AE_ERROR; 729 *value = result & 0x1; 730 return AE_OK; 731 default: 732 err = ec_read(0xA, &result); 733 if (err) 734 return AE_ERROR; 735 *value = (result >> 2) & 0x1; 736 return AE_OK; 737 } 738 break; 739 case ACER_CAP_BLUETOOTH: 740 switch (quirks->bluetooth) { 741 default: 742 err = ec_read(0xA, &result); 743 if (err) 744 return AE_ERROR; 745 *value = (result >> 4) & 0x1; 746 return AE_OK; 747 } 748 break; 749 case ACER_CAP_BRIGHTNESS: 750 switch (quirks->brightness) { 751 default: 752 err = ec_read(0x83, &result); 753 if (err) 754 return AE_ERROR; 755 *value = result; 756 return AE_OK; 757 } 758 break; 759 default: 760 return AE_ERROR; 761 } 762 return AE_OK; 763 } 764 765 static acpi_status AMW0_set_u32(u32 value, u32 cap) 766 { 767 struct wmab_args args; 768 769 args.eax = ACER_AMW0_WRITE; 770 args.ebx = value ? (1<<8) : 0; 771 args.ecx = args.edx = 0; 772 773 switch (cap) { 774 case ACER_CAP_MAILLED: 775 if (value > 1) 776 return AE_BAD_PARAMETER; 777 args.ebx |= ACER_AMW0_MAILLED_MASK; 778 break; 779 case ACER_CAP_WIRELESS: 780 if (value > 1) 781 return AE_BAD_PARAMETER; 782 args.ebx |= ACER_AMW0_WIRELESS_MASK; 783 break; 784 case ACER_CAP_BLUETOOTH: 785 if (value > 1) 786 return AE_BAD_PARAMETER; 787 args.ebx |= ACER_AMW0_BLUETOOTH_MASK; 788 break; 789 case ACER_CAP_BRIGHTNESS: 790 if (value > max_brightness) 791 return AE_BAD_PARAMETER; 792 switch (quirks->brightness) { 793 default: 794 return ec_write(0x83, value); 795 break; 796 } 797 default: 798 return AE_ERROR; 799 } 800 801 /* Actually do the set */ 802 return wmab_execute(&args, NULL); 803 } 804 805 static acpi_status __init AMW0_find_mailled(void) 806 { 807 struct wmab_args args; 808 struct wmab_ret ret; 809 acpi_status status = AE_OK; 810 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL }; 811 union acpi_object *obj; 812 813 args.eax = 0x86; 814 args.ebx = args.ecx = args.edx = 0; 815 816 status = wmab_execute(&args, &out); 817 if (ACPI_FAILURE(status)) 818 return status; 819 820 obj = (union acpi_object *) out.pointer; 821 if (obj && obj->type == ACPI_TYPE_BUFFER && 822 obj->buffer.length == sizeof(struct wmab_ret)) { 823 ret = *((struct wmab_ret *) obj->buffer.pointer); 824 } else { 825 kfree(out.pointer); 826 return AE_ERROR; 827 } 828 829 if (ret.eex & 0x1) 830 interface->capability |= ACER_CAP_MAILLED; 831 832 kfree(out.pointer); 833 834 return AE_OK; 835 } 836 837 static const struct acpi_device_id norfkill_ids[] __initconst = { 838 { "VPC2004", 0}, 839 { "IBM0068", 0}, 840 { "LEN0068", 0}, 841 { "SNY5001", 0}, /* sony-laptop in charge */ 842 { "HPQ6601", 0}, 843 { "", 0}, 844 }; 845 846 static int __init AMW0_set_cap_acpi_check_device(void) 847 { 848 const struct acpi_device_id *id; 849 850 for (id = norfkill_ids; id->id[0]; id++) 851 if (acpi_dev_found(id->id)) 852 return true; 853 854 return false; 855 } 856 857 static acpi_status __init AMW0_set_capabilities(void) 858 { 859 struct wmab_args args; 860 struct wmab_ret ret; 861 acpi_status status; 862 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL }; 863 union acpi_object *obj; 864 865 /* 866 * On laptops with this strange GUID (non Acer), normal probing doesn't 867 * work. 868 */ 869 if (wmi_has_guid(AMW0_GUID2)) { 870 if ((quirks != &quirk_unknown) || 871 !AMW0_set_cap_acpi_check_device()) 872 interface->capability |= ACER_CAP_WIRELESS; 873 return AE_OK; 874 } 875 876 args.eax = ACER_AMW0_WRITE; 877 args.ecx = args.edx = 0; 878 879 args.ebx = 0xa2 << 8; 880 args.ebx |= ACER_AMW0_WIRELESS_MASK; 881 882 status = wmab_execute(&args, &out); 883 if (ACPI_FAILURE(status)) 884 return status; 885 886 obj = out.pointer; 887 if (obj && obj->type == ACPI_TYPE_BUFFER && 888 obj->buffer.length == sizeof(struct wmab_ret)) { 889 ret = *((struct wmab_ret *) obj->buffer.pointer); 890 } else { 891 status = AE_ERROR; 892 goto out; 893 } 894 895 if (ret.eax & 0x1) 896 interface->capability |= ACER_CAP_WIRELESS; 897 898 args.ebx = 2 << 8; 899 args.ebx |= ACER_AMW0_BLUETOOTH_MASK; 900 901 /* 902 * It's ok to use existing buffer for next wmab_execute call. 903 * But we need to kfree(out.pointer) if next wmab_execute fail. 904 */ 905 status = wmab_execute(&args, &out); 906 if (ACPI_FAILURE(status)) 907 goto out; 908 909 obj = (union acpi_object *) out.pointer; 910 if (obj && obj->type == ACPI_TYPE_BUFFER 911 && obj->buffer.length == sizeof(struct wmab_ret)) { 912 ret = *((struct wmab_ret *) obj->buffer.pointer); 913 } else { 914 status = AE_ERROR; 915 goto out; 916 } 917 918 if (ret.eax & 0x1) 919 interface->capability |= ACER_CAP_BLUETOOTH; 920 921 /* 922 * This appears to be safe to enable, since all Wistron based laptops 923 * appear to use the same EC register for brightness, even if they 924 * differ for wireless, etc 925 */ 926 if (quirks->brightness >= 0) 927 interface->capability |= ACER_CAP_BRIGHTNESS; 928 929 status = AE_OK; 930 out: 931 kfree(out.pointer); 932 return status; 933 } 934 935 static struct wmi_interface AMW0_interface = { 936 .type = ACER_AMW0, 937 }; 938 939 static struct wmi_interface AMW0_V2_interface = { 940 .type = ACER_AMW0_V2, 941 }; 942 943 /* 944 * New interface (The WMID interface) 945 */ 946 static acpi_status 947 WMI_execute_u32(u32 method_id, u32 in, u32 *out) 948 { 949 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) }; 950 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL }; 951 union acpi_object *obj; 952 u32 tmp = 0; 953 acpi_status status; 954 955 status = wmi_evaluate_method(WMID_GUID1, 0, method_id, &input, &result); 956 957 if (ACPI_FAILURE(status)) 958 return status; 959 960 obj = (union acpi_object *) result.pointer; 961 if (obj) { 962 if (obj->type == ACPI_TYPE_BUFFER && 963 (obj->buffer.length == sizeof(u32) || 964 obj->buffer.length == sizeof(u64))) { 965 tmp = *((u32 *) obj->buffer.pointer); 966 } else if (obj->type == ACPI_TYPE_INTEGER) { 967 tmp = (u32) obj->integer.value; 968 } 969 } 970 971 if (out) 972 *out = tmp; 973 974 kfree(result.pointer); 975 976 return status; 977 } 978 979 static acpi_status WMID_get_u32(u32 *value, u32 cap) 980 { 981 acpi_status status; 982 u8 tmp; 983 u32 result, method_id = 0; 984 985 switch (cap) { 986 case ACER_CAP_WIRELESS: 987 method_id = ACER_WMID_GET_WIRELESS_METHODID; 988 break; 989 case ACER_CAP_BLUETOOTH: 990 method_id = ACER_WMID_GET_BLUETOOTH_METHODID; 991 break; 992 case ACER_CAP_BRIGHTNESS: 993 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID; 994 break; 995 case ACER_CAP_THREEG: 996 method_id = ACER_WMID_GET_THREEG_METHODID; 997 break; 998 case ACER_CAP_MAILLED: 999 if (quirks->mailled == 1) { 1000 ec_read(0x9f, &tmp); 1001 *value = tmp & 0x1; 1002 return 0; 1003 } 1004 /* fall through */ 1005 default: 1006 return AE_ERROR; 1007 } 1008 status = WMI_execute_u32(method_id, 0, &result); 1009 1010 if (ACPI_SUCCESS(status)) 1011 *value = (u8)result; 1012 1013 return status; 1014 } 1015 1016 static acpi_status WMID_set_u32(u32 value, u32 cap) 1017 { 1018 u32 method_id = 0; 1019 char param; 1020 1021 switch (cap) { 1022 case ACER_CAP_BRIGHTNESS: 1023 if (value > max_brightness) 1024 return AE_BAD_PARAMETER; 1025 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID; 1026 break; 1027 case ACER_CAP_WIRELESS: 1028 if (value > 1) 1029 return AE_BAD_PARAMETER; 1030 method_id = ACER_WMID_SET_WIRELESS_METHODID; 1031 break; 1032 case ACER_CAP_BLUETOOTH: 1033 if (value > 1) 1034 return AE_BAD_PARAMETER; 1035 method_id = ACER_WMID_SET_BLUETOOTH_METHODID; 1036 break; 1037 case ACER_CAP_THREEG: 1038 if (value > 1) 1039 return AE_BAD_PARAMETER; 1040 method_id = ACER_WMID_SET_THREEG_METHODID; 1041 break; 1042 case ACER_CAP_MAILLED: 1043 if (value > 1) 1044 return AE_BAD_PARAMETER; 1045 if (quirks->mailled == 1) { 1046 param = value ? 0x92 : 0x93; 1047 i8042_lock_chip(); 1048 i8042_command(¶m, 0x1059); 1049 i8042_unlock_chip(); 1050 return 0; 1051 } 1052 break; 1053 default: 1054 return AE_ERROR; 1055 } 1056 return WMI_execute_u32(method_id, (u32)value, NULL); 1057 } 1058 1059 static acpi_status wmid3_get_device_status(u32 *value, u16 device) 1060 { 1061 struct wmid3_gds_return_value return_value; 1062 acpi_status status; 1063 union acpi_object *obj; 1064 struct wmid3_gds_get_input_param params = { 1065 .function_num = 0x1, 1066 .hotkey_number = commun_fn_key_number, 1067 .devices = device, 1068 }; 1069 struct acpi_buffer input = { 1070 sizeof(struct wmid3_gds_get_input_param), 1071 ¶ms 1072 }; 1073 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; 1074 1075 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output); 1076 if (ACPI_FAILURE(status)) 1077 return status; 1078 1079 obj = output.pointer; 1080 1081 if (!obj) 1082 return AE_ERROR; 1083 else if (obj->type != ACPI_TYPE_BUFFER) { 1084 kfree(obj); 1085 return AE_ERROR; 1086 } 1087 if (obj->buffer.length != 8) { 1088 pr_warn("Unknown buffer length %d\n", obj->buffer.length); 1089 kfree(obj); 1090 return AE_ERROR; 1091 } 1092 1093 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer); 1094 kfree(obj); 1095 1096 if (return_value.error_code || return_value.ec_return_value) 1097 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n", 1098 device, 1099 return_value.error_code, 1100 return_value.ec_return_value); 1101 else 1102 *value = !!(return_value.devices & device); 1103 1104 return status; 1105 } 1106 1107 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap) 1108 { 1109 u16 device; 1110 1111 switch (cap) { 1112 case ACER_CAP_WIRELESS: 1113 device = ACER_WMID3_GDS_WIRELESS; 1114 break; 1115 case ACER_CAP_BLUETOOTH: 1116 device = ACER_WMID3_GDS_BLUETOOTH; 1117 break; 1118 case ACER_CAP_THREEG: 1119 device = ACER_WMID3_GDS_THREEG; 1120 break; 1121 default: 1122 return AE_ERROR; 1123 } 1124 return wmid3_get_device_status(value, device); 1125 } 1126 1127 static acpi_status wmid3_set_device_status(u32 value, u16 device) 1128 { 1129 struct wmid3_gds_return_value return_value; 1130 acpi_status status; 1131 union acpi_object *obj; 1132 u16 devices; 1133 struct wmid3_gds_get_input_param get_params = { 1134 .function_num = 0x1, 1135 .hotkey_number = commun_fn_key_number, 1136 .devices = commun_func_bitmap, 1137 }; 1138 struct acpi_buffer get_input = { 1139 sizeof(struct wmid3_gds_get_input_param), 1140 &get_params 1141 }; 1142 struct wmid3_gds_set_input_param set_params = { 1143 .function_num = 0x2, 1144 .hotkey_number = commun_fn_key_number, 1145 .devices = commun_func_bitmap, 1146 }; 1147 struct acpi_buffer set_input = { 1148 sizeof(struct wmid3_gds_set_input_param), 1149 &set_params 1150 }; 1151 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; 1152 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL }; 1153 1154 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output); 1155 if (ACPI_FAILURE(status)) 1156 return status; 1157 1158 obj = output.pointer; 1159 1160 if (!obj) 1161 return AE_ERROR; 1162 else if (obj->type != ACPI_TYPE_BUFFER) { 1163 kfree(obj); 1164 return AE_ERROR; 1165 } 1166 if (obj->buffer.length != 8) { 1167 pr_warn("Unknown buffer length %d\n", obj->buffer.length); 1168 kfree(obj); 1169 return AE_ERROR; 1170 } 1171 1172 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer); 1173 kfree(obj); 1174 1175 if (return_value.error_code || return_value.ec_return_value) { 1176 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n", 1177 return_value.error_code, 1178 return_value.ec_return_value); 1179 return status; 1180 } 1181 1182 devices = return_value.devices; 1183 set_params.devices = (value) ? (devices | device) : (devices & ~device); 1184 1185 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2); 1186 if (ACPI_FAILURE(status)) 1187 return status; 1188 1189 obj = output2.pointer; 1190 1191 if (!obj) 1192 return AE_ERROR; 1193 else if (obj->type != ACPI_TYPE_BUFFER) { 1194 kfree(obj); 1195 return AE_ERROR; 1196 } 1197 if (obj->buffer.length != 4) { 1198 pr_warn("Unknown buffer length %d\n", obj->buffer.length); 1199 kfree(obj); 1200 return AE_ERROR; 1201 } 1202 1203 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer); 1204 kfree(obj); 1205 1206 if (return_value.error_code || return_value.ec_return_value) 1207 pr_warn("Set Device Status failed: 0x%x - 0x%x\n", 1208 return_value.error_code, 1209 return_value.ec_return_value); 1210 1211 return status; 1212 } 1213 1214 static acpi_status wmid_v2_set_u32(u32 value, u32 cap) 1215 { 1216 u16 device; 1217 1218 switch (cap) { 1219 case ACER_CAP_WIRELESS: 1220 device = ACER_WMID3_GDS_WIRELESS; 1221 break; 1222 case ACER_CAP_BLUETOOTH: 1223 device = ACER_WMID3_GDS_BLUETOOTH; 1224 break; 1225 case ACER_CAP_THREEG: 1226 device = ACER_WMID3_GDS_THREEG; 1227 break; 1228 default: 1229 return AE_ERROR; 1230 } 1231 return wmid3_set_device_status(value, device); 1232 } 1233 1234 static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d) 1235 { 1236 struct hotkey_function_type_aa *type_aa; 1237 1238 /* We are looking for OEM-specific Type AAh */ 1239 if (header->type != 0xAA) 1240 return; 1241 1242 has_type_aa = true; 1243 type_aa = (struct hotkey_function_type_aa *) header; 1244 1245 pr_info("Function bitmap for Communication Button: 0x%x\n", 1246 type_aa->commun_func_bitmap); 1247 commun_func_bitmap = type_aa->commun_func_bitmap; 1248 1249 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS) 1250 interface->capability |= ACER_CAP_WIRELESS; 1251 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG) 1252 interface->capability |= ACER_CAP_THREEG; 1253 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH) 1254 interface->capability |= ACER_CAP_BLUETOOTH; 1255 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_RFBTN) { 1256 interface->capability |= ACER_CAP_RFBTN; 1257 commun_func_bitmap &= ~ACER_WMID3_GDS_RFBTN; 1258 } 1259 1260 commun_fn_key_number = type_aa->commun_fn_key_number; 1261 } 1262 1263 static acpi_status __init WMID_set_capabilities(void) 1264 { 1265 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL}; 1266 union acpi_object *obj; 1267 acpi_status status; 1268 u32 devices; 1269 1270 status = wmi_query_block(WMID_GUID2, 0, &out); 1271 if (ACPI_FAILURE(status)) 1272 return status; 1273 1274 obj = (union acpi_object *) out.pointer; 1275 if (obj) { 1276 if (obj->type == ACPI_TYPE_BUFFER && 1277 (obj->buffer.length == sizeof(u32) || 1278 obj->buffer.length == sizeof(u64))) { 1279 devices = *((u32 *) obj->buffer.pointer); 1280 } else if (obj->type == ACPI_TYPE_INTEGER) { 1281 devices = (u32) obj->integer.value; 1282 } else { 1283 kfree(out.pointer); 1284 return AE_ERROR; 1285 } 1286 } else { 1287 kfree(out.pointer); 1288 return AE_ERROR; 1289 } 1290 1291 pr_info("Function bitmap for Communication Device: 0x%x\n", devices); 1292 if (devices & 0x07) 1293 interface->capability |= ACER_CAP_WIRELESS; 1294 if (devices & 0x40) 1295 interface->capability |= ACER_CAP_THREEG; 1296 if (devices & 0x10) 1297 interface->capability |= ACER_CAP_BLUETOOTH; 1298 1299 if (!(devices & 0x20)) 1300 max_brightness = 0x9; 1301 1302 kfree(out.pointer); 1303 return status; 1304 } 1305 1306 static struct wmi_interface wmid_interface = { 1307 .type = ACER_WMID, 1308 }; 1309 1310 static struct wmi_interface wmid_v2_interface = { 1311 .type = ACER_WMID_v2, 1312 }; 1313 1314 /* 1315 * Generic Device (interface-independent) 1316 */ 1317 1318 static acpi_status get_u32(u32 *value, u32 cap) 1319 { 1320 acpi_status status = AE_ERROR; 1321 1322 switch (interface->type) { 1323 case ACER_AMW0: 1324 status = AMW0_get_u32(value, cap); 1325 break; 1326 case ACER_AMW0_V2: 1327 if (cap == ACER_CAP_MAILLED) { 1328 status = AMW0_get_u32(value, cap); 1329 break; 1330 } 1331 /* fall through */ 1332 case ACER_WMID: 1333 status = WMID_get_u32(value, cap); 1334 break; 1335 case ACER_WMID_v2: 1336 if (cap & (ACER_CAP_WIRELESS | 1337 ACER_CAP_BLUETOOTH | 1338 ACER_CAP_THREEG)) 1339 status = wmid_v2_get_u32(value, cap); 1340 else if (wmi_has_guid(WMID_GUID2)) 1341 status = WMID_get_u32(value, cap); 1342 break; 1343 } 1344 1345 return status; 1346 } 1347 1348 static acpi_status set_u32(u32 value, u32 cap) 1349 { 1350 acpi_status status; 1351 1352 if (interface->capability & cap) { 1353 switch (interface->type) { 1354 case ACER_AMW0: 1355 return AMW0_set_u32(value, cap); 1356 case ACER_AMW0_V2: 1357 if (cap == ACER_CAP_MAILLED) 1358 return AMW0_set_u32(value, cap); 1359 1360 /* 1361 * On some models, some WMID methods don't toggle 1362 * properly. For those cases, we want to run the AMW0 1363 * method afterwards to be certain we've really toggled 1364 * the device state. 1365 */ 1366 if (cap == ACER_CAP_WIRELESS || 1367 cap == ACER_CAP_BLUETOOTH) { 1368 status = WMID_set_u32(value, cap); 1369 if (ACPI_FAILURE(status)) 1370 return status; 1371 1372 return AMW0_set_u32(value, cap); 1373 } 1374 /* fall through */ 1375 case ACER_WMID: 1376 return WMID_set_u32(value, cap); 1377 case ACER_WMID_v2: 1378 if (cap & (ACER_CAP_WIRELESS | 1379 ACER_CAP_BLUETOOTH | 1380 ACER_CAP_THREEG)) 1381 return wmid_v2_set_u32(value, cap); 1382 else if (wmi_has_guid(WMID_GUID2)) 1383 return WMID_set_u32(value, cap); 1384 /* fall through */ 1385 default: 1386 return AE_BAD_PARAMETER; 1387 } 1388 } 1389 return AE_BAD_PARAMETER; 1390 } 1391 1392 static void __init acer_commandline_init(void) 1393 { 1394 /* 1395 * These will all fail silently if the value given is invalid, or the 1396 * capability isn't available on the given interface 1397 */ 1398 if (mailled >= 0) 1399 set_u32(mailled, ACER_CAP_MAILLED); 1400 if (!has_type_aa && threeg >= 0) 1401 set_u32(threeg, ACER_CAP_THREEG); 1402 if (brightness >= 0) 1403 set_u32(brightness, ACER_CAP_BRIGHTNESS); 1404 } 1405 1406 /* 1407 * LED device (Mail LED only, no other LEDs known yet) 1408 */ 1409 static void mail_led_set(struct led_classdev *led_cdev, 1410 enum led_brightness value) 1411 { 1412 set_u32(value, ACER_CAP_MAILLED); 1413 } 1414 1415 static struct led_classdev mail_led = { 1416 .name = "acer-wmi::mail", 1417 .brightness_set = mail_led_set, 1418 }; 1419 1420 static int acer_led_init(struct device *dev) 1421 { 1422 return led_classdev_register(dev, &mail_led); 1423 } 1424 1425 static void acer_led_exit(void) 1426 { 1427 set_u32(LED_OFF, ACER_CAP_MAILLED); 1428 led_classdev_unregister(&mail_led); 1429 } 1430 1431 /* 1432 * Backlight device 1433 */ 1434 static struct backlight_device *acer_backlight_device; 1435 1436 static int read_brightness(struct backlight_device *bd) 1437 { 1438 u32 value; 1439 get_u32(&value, ACER_CAP_BRIGHTNESS); 1440 return value; 1441 } 1442 1443 static int update_bl_status(struct backlight_device *bd) 1444 { 1445 int intensity = bd->props.brightness; 1446 1447 if (bd->props.power != FB_BLANK_UNBLANK) 1448 intensity = 0; 1449 if (bd->props.fb_blank != FB_BLANK_UNBLANK) 1450 intensity = 0; 1451 1452 set_u32(intensity, ACER_CAP_BRIGHTNESS); 1453 1454 return 0; 1455 } 1456 1457 static const struct backlight_ops acer_bl_ops = { 1458 .get_brightness = read_brightness, 1459 .update_status = update_bl_status, 1460 }; 1461 1462 static int acer_backlight_init(struct device *dev) 1463 { 1464 struct backlight_properties props; 1465 struct backlight_device *bd; 1466 1467 memset(&props, 0, sizeof(struct backlight_properties)); 1468 props.type = BACKLIGHT_PLATFORM; 1469 props.max_brightness = max_brightness; 1470 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops, 1471 &props); 1472 if (IS_ERR(bd)) { 1473 pr_err("Could not register Acer backlight device\n"); 1474 acer_backlight_device = NULL; 1475 return PTR_ERR(bd); 1476 } 1477 1478 acer_backlight_device = bd; 1479 1480 bd->props.power = FB_BLANK_UNBLANK; 1481 bd->props.brightness = read_brightness(bd); 1482 backlight_update_status(bd); 1483 return 0; 1484 } 1485 1486 static void acer_backlight_exit(void) 1487 { 1488 backlight_device_unregister(acer_backlight_device); 1489 } 1490 1491 /* 1492 * Accelerometer device 1493 */ 1494 static acpi_handle gsensor_handle; 1495 1496 static int acer_gsensor_init(void) 1497 { 1498 acpi_status status; 1499 struct acpi_buffer output; 1500 union acpi_object out_obj; 1501 1502 output.length = sizeof(out_obj); 1503 output.pointer = &out_obj; 1504 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output); 1505 if (ACPI_FAILURE(status)) 1506 return -1; 1507 1508 return 0; 1509 } 1510 1511 static int acer_gsensor_open(struct input_dev *input) 1512 { 1513 return acer_gsensor_init(); 1514 } 1515 1516 static int acer_gsensor_event(void) 1517 { 1518 acpi_status status; 1519 struct acpi_buffer output; 1520 union acpi_object out_obj[5]; 1521 1522 if (!has_cap(ACER_CAP_ACCEL)) 1523 return -1; 1524 1525 output.length = sizeof(out_obj); 1526 output.pointer = out_obj; 1527 1528 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output); 1529 if (ACPI_FAILURE(status)) 1530 return -1; 1531 1532 if (out_obj->package.count != 4) 1533 return -1; 1534 1535 input_report_abs(acer_wmi_accel_dev, ABS_X, 1536 (s16)out_obj->package.elements[0].integer.value); 1537 input_report_abs(acer_wmi_accel_dev, ABS_Y, 1538 (s16)out_obj->package.elements[1].integer.value); 1539 input_report_abs(acer_wmi_accel_dev, ABS_Z, 1540 (s16)out_obj->package.elements[2].integer.value); 1541 input_sync(acer_wmi_accel_dev); 1542 return 0; 1543 } 1544 1545 /* 1546 * Rfkill devices 1547 */ 1548 static void acer_rfkill_update(struct work_struct *ignored); 1549 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update); 1550 static void acer_rfkill_update(struct work_struct *ignored) 1551 { 1552 u32 state; 1553 acpi_status status; 1554 1555 if (has_cap(ACER_CAP_WIRELESS)) { 1556 status = get_u32(&state, ACER_CAP_WIRELESS); 1557 if (ACPI_SUCCESS(status)) { 1558 if (quirks->wireless == 3) 1559 rfkill_set_hw_state(wireless_rfkill, !state); 1560 else 1561 rfkill_set_sw_state(wireless_rfkill, !state); 1562 } 1563 } 1564 1565 if (has_cap(ACER_CAP_BLUETOOTH)) { 1566 status = get_u32(&state, ACER_CAP_BLUETOOTH); 1567 if (ACPI_SUCCESS(status)) 1568 rfkill_set_sw_state(bluetooth_rfkill, !state); 1569 } 1570 1571 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) { 1572 status = get_u32(&state, ACER_WMID3_GDS_THREEG); 1573 if (ACPI_SUCCESS(status)) 1574 rfkill_set_sw_state(threeg_rfkill, !state); 1575 } 1576 1577 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ)); 1578 } 1579 1580 static int acer_rfkill_set(void *data, bool blocked) 1581 { 1582 acpi_status status; 1583 u32 cap = (unsigned long)data; 1584 1585 if (rfkill_inited) { 1586 status = set_u32(!blocked, cap); 1587 if (ACPI_FAILURE(status)) 1588 return -ENODEV; 1589 } 1590 1591 return 0; 1592 } 1593 1594 static const struct rfkill_ops acer_rfkill_ops = { 1595 .set_block = acer_rfkill_set, 1596 }; 1597 1598 static struct rfkill *acer_rfkill_register(struct device *dev, 1599 enum rfkill_type type, 1600 char *name, u32 cap) 1601 { 1602 int err; 1603 struct rfkill *rfkill_dev; 1604 u32 state; 1605 acpi_status status; 1606 1607 rfkill_dev = rfkill_alloc(name, dev, type, 1608 &acer_rfkill_ops, 1609 (void *)(unsigned long)cap); 1610 if (!rfkill_dev) 1611 return ERR_PTR(-ENOMEM); 1612 1613 status = get_u32(&state, cap); 1614 1615 err = rfkill_register(rfkill_dev); 1616 if (err) { 1617 rfkill_destroy(rfkill_dev); 1618 return ERR_PTR(err); 1619 } 1620 1621 if (ACPI_SUCCESS(status)) 1622 rfkill_set_sw_state(rfkill_dev, !state); 1623 1624 return rfkill_dev; 1625 } 1626 1627 static int acer_rfkill_init(struct device *dev) 1628 { 1629 int err; 1630 1631 if (has_cap(ACER_CAP_WIRELESS)) { 1632 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN, 1633 "acer-wireless", ACER_CAP_WIRELESS); 1634 if (IS_ERR(wireless_rfkill)) { 1635 err = PTR_ERR(wireless_rfkill); 1636 goto error_wireless; 1637 } 1638 } 1639 1640 if (has_cap(ACER_CAP_BLUETOOTH)) { 1641 bluetooth_rfkill = acer_rfkill_register(dev, 1642 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth", 1643 ACER_CAP_BLUETOOTH); 1644 if (IS_ERR(bluetooth_rfkill)) { 1645 err = PTR_ERR(bluetooth_rfkill); 1646 goto error_bluetooth; 1647 } 1648 } 1649 1650 if (has_cap(ACER_CAP_THREEG)) { 1651 threeg_rfkill = acer_rfkill_register(dev, 1652 RFKILL_TYPE_WWAN, "acer-threeg", 1653 ACER_CAP_THREEG); 1654 if (IS_ERR(threeg_rfkill)) { 1655 err = PTR_ERR(threeg_rfkill); 1656 goto error_threeg; 1657 } 1658 } 1659 1660 rfkill_inited = true; 1661 1662 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) && 1663 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG)) 1664 schedule_delayed_work(&acer_rfkill_work, 1665 round_jiffies_relative(HZ)); 1666 1667 return 0; 1668 1669 error_threeg: 1670 if (has_cap(ACER_CAP_BLUETOOTH)) { 1671 rfkill_unregister(bluetooth_rfkill); 1672 rfkill_destroy(bluetooth_rfkill); 1673 } 1674 error_bluetooth: 1675 if (has_cap(ACER_CAP_WIRELESS)) { 1676 rfkill_unregister(wireless_rfkill); 1677 rfkill_destroy(wireless_rfkill); 1678 } 1679 error_wireless: 1680 return err; 1681 } 1682 1683 static void acer_rfkill_exit(void) 1684 { 1685 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) && 1686 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG)) 1687 cancel_delayed_work_sync(&acer_rfkill_work); 1688 1689 if (has_cap(ACER_CAP_WIRELESS)) { 1690 rfkill_unregister(wireless_rfkill); 1691 rfkill_destroy(wireless_rfkill); 1692 } 1693 1694 if (has_cap(ACER_CAP_BLUETOOTH)) { 1695 rfkill_unregister(bluetooth_rfkill); 1696 rfkill_destroy(bluetooth_rfkill); 1697 } 1698 1699 if (has_cap(ACER_CAP_THREEG)) { 1700 rfkill_unregister(threeg_rfkill); 1701 rfkill_destroy(threeg_rfkill); 1702 } 1703 return; 1704 } 1705 1706 static void acer_wmi_notify(u32 value, void *context) 1707 { 1708 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; 1709 union acpi_object *obj; 1710 struct event_return_value return_value; 1711 acpi_status status; 1712 u16 device_state; 1713 const struct key_entry *key; 1714 u32 scancode; 1715 1716 status = wmi_get_event_data(value, &response); 1717 if (status != AE_OK) { 1718 pr_warn("bad event status 0x%x\n", status); 1719 return; 1720 } 1721 1722 obj = (union acpi_object *)response.pointer; 1723 1724 if (!obj) 1725 return; 1726 if (obj->type != ACPI_TYPE_BUFFER) { 1727 pr_warn("Unknown response received %d\n", obj->type); 1728 kfree(obj); 1729 return; 1730 } 1731 if (obj->buffer.length != 8) { 1732 pr_warn("Unknown buffer length %d\n", obj->buffer.length); 1733 kfree(obj); 1734 return; 1735 } 1736 1737 return_value = *((struct event_return_value *)obj->buffer.pointer); 1738 kfree(obj); 1739 1740 switch (return_value.function) { 1741 case WMID_HOTKEY_EVENT: 1742 device_state = return_value.device_state; 1743 pr_debug("device state: 0x%x\n", device_state); 1744 1745 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev, 1746 return_value.key_num); 1747 if (!key) { 1748 pr_warn("Unknown key number - 0x%x\n", 1749 return_value.key_num); 1750 } else { 1751 scancode = return_value.key_num; 1752 switch (key->keycode) { 1753 case KEY_WLAN: 1754 case KEY_BLUETOOTH: 1755 if (has_cap(ACER_CAP_WIRELESS)) 1756 rfkill_set_sw_state(wireless_rfkill, 1757 !(device_state & ACER_WMID3_GDS_WIRELESS)); 1758 if (has_cap(ACER_CAP_THREEG)) 1759 rfkill_set_sw_state(threeg_rfkill, 1760 !(device_state & ACER_WMID3_GDS_THREEG)); 1761 if (has_cap(ACER_CAP_BLUETOOTH)) 1762 rfkill_set_sw_state(bluetooth_rfkill, 1763 !(device_state & ACER_WMID3_GDS_BLUETOOTH)); 1764 break; 1765 case KEY_TOUCHPAD_TOGGLE: 1766 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ? 1767 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF; 1768 } 1769 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true); 1770 } 1771 break; 1772 case WMID_ACCEL_EVENT: 1773 acer_gsensor_event(); 1774 break; 1775 default: 1776 pr_warn("Unknown function number - %d - %d\n", 1777 return_value.function, return_value.key_num); 1778 break; 1779 } 1780 } 1781 1782 static acpi_status __init 1783 wmid3_set_function_mode(struct func_input_params *params, 1784 struct func_return_value *return_value) 1785 { 1786 acpi_status status; 1787 union acpi_object *obj; 1788 1789 struct acpi_buffer input = { sizeof(struct func_input_params), params }; 1790 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; 1791 1792 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output); 1793 if (ACPI_FAILURE(status)) 1794 return status; 1795 1796 obj = output.pointer; 1797 1798 if (!obj) 1799 return AE_ERROR; 1800 else if (obj->type != ACPI_TYPE_BUFFER) { 1801 kfree(obj); 1802 return AE_ERROR; 1803 } 1804 if (obj->buffer.length != 4) { 1805 pr_warn("Unknown buffer length %d\n", obj->buffer.length); 1806 kfree(obj); 1807 return AE_ERROR; 1808 } 1809 1810 *return_value = *((struct func_return_value *)obj->buffer.pointer); 1811 kfree(obj); 1812 1813 return status; 1814 } 1815 1816 static int __init acer_wmi_enable_ec_raw(void) 1817 { 1818 struct func_return_value return_value; 1819 acpi_status status; 1820 struct func_input_params params = { 1821 .function_num = 0x1, 1822 .commun_devices = 0xFFFF, 1823 .devices = 0xFFFF, 1824 .app_status = 0x00, /* Launch Manager Deactive */ 1825 .app_mask = 0x01, 1826 }; 1827 1828 status = wmid3_set_function_mode(¶ms, &return_value); 1829 1830 if (return_value.error_code || return_value.ec_return_value) 1831 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n", 1832 return_value.error_code, 1833 return_value.ec_return_value); 1834 else 1835 pr_info("Enabled EC raw mode\n"); 1836 1837 return status; 1838 } 1839 1840 static int __init acer_wmi_enable_lm(void) 1841 { 1842 struct func_return_value return_value; 1843 acpi_status status; 1844 struct func_input_params params = { 1845 .function_num = 0x1, 1846 .commun_devices = 0xFFFF, 1847 .devices = 0xFFFF, 1848 .app_status = 0x01, /* Launch Manager Active */ 1849 .app_mask = 0x01, 1850 }; 1851 1852 status = wmid3_set_function_mode(¶ms, &return_value); 1853 1854 if (return_value.error_code || return_value.ec_return_value) 1855 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n", 1856 return_value.error_code, 1857 return_value.ec_return_value); 1858 1859 return status; 1860 } 1861 1862 static int __init acer_wmi_enable_rf_button(void) 1863 { 1864 struct func_return_value return_value; 1865 acpi_status status; 1866 struct func_input_params params = { 1867 .function_num = 0x1, 1868 .commun_devices = 0xFFFF, 1869 .devices = 0xFFFF, 1870 .app_status = 0x10, /* RF Button Active */ 1871 .app_mask = 0x10, 1872 }; 1873 1874 status = wmid3_set_function_mode(¶ms, &return_value); 1875 1876 if (return_value.error_code || return_value.ec_return_value) 1877 pr_warn("Enabling RF Button failed: 0x%x - 0x%x\n", 1878 return_value.error_code, 1879 return_value.ec_return_value); 1880 1881 return status; 1882 } 1883 1884 static int __init acer_wmi_accel_setup(void) 1885 { 1886 struct acpi_device *adev; 1887 int err; 1888 1889 adev = acpi_dev_get_first_match_dev("BST0001", NULL, -1); 1890 if (!adev) 1891 return -ENODEV; 1892 1893 gsensor_handle = acpi_device_handle(adev); 1894 acpi_dev_put(adev); 1895 1896 interface->capability |= ACER_CAP_ACCEL; 1897 1898 acer_wmi_accel_dev = input_allocate_device(); 1899 if (!acer_wmi_accel_dev) 1900 return -ENOMEM; 1901 1902 acer_wmi_accel_dev->open = acer_gsensor_open; 1903 1904 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer"; 1905 acer_wmi_accel_dev->phys = "wmi/input1"; 1906 acer_wmi_accel_dev->id.bustype = BUS_HOST; 1907 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS); 1908 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0); 1909 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0); 1910 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0); 1911 1912 err = input_register_device(acer_wmi_accel_dev); 1913 if (err) 1914 goto err_free_dev; 1915 1916 return 0; 1917 1918 err_free_dev: 1919 input_free_device(acer_wmi_accel_dev); 1920 return err; 1921 } 1922 1923 static void acer_wmi_accel_destroy(void) 1924 { 1925 input_unregister_device(acer_wmi_accel_dev); 1926 } 1927 1928 static int __init acer_wmi_input_setup(void) 1929 { 1930 acpi_status status; 1931 int err; 1932 1933 acer_wmi_input_dev = input_allocate_device(); 1934 if (!acer_wmi_input_dev) 1935 return -ENOMEM; 1936 1937 acer_wmi_input_dev->name = "Acer WMI hotkeys"; 1938 acer_wmi_input_dev->phys = "wmi/input0"; 1939 acer_wmi_input_dev->id.bustype = BUS_HOST; 1940 1941 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL); 1942 if (err) 1943 goto err_free_dev; 1944 1945 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID, 1946 acer_wmi_notify, NULL); 1947 if (ACPI_FAILURE(status)) { 1948 err = -EIO; 1949 goto err_free_dev; 1950 } 1951 1952 err = input_register_device(acer_wmi_input_dev); 1953 if (err) 1954 goto err_uninstall_notifier; 1955 1956 return 0; 1957 1958 err_uninstall_notifier: 1959 wmi_remove_notify_handler(ACERWMID_EVENT_GUID); 1960 err_free_dev: 1961 input_free_device(acer_wmi_input_dev); 1962 return err; 1963 } 1964 1965 static void acer_wmi_input_destroy(void) 1966 { 1967 wmi_remove_notify_handler(ACERWMID_EVENT_GUID); 1968 input_unregister_device(acer_wmi_input_dev); 1969 } 1970 1971 /* 1972 * debugfs functions 1973 */ 1974 static u32 get_wmid_devices(void) 1975 { 1976 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL}; 1977 union acpi_object *obj; 1978 acpi_status status; 1979 u32 devices = 0; 1980 1981 status = wmi_query_block(WMID_GUID2, 0, &out); 1982 if (ACPI_FAILURE(status)) 1983 return 0; 1984 1985 obj = (union acpi_object *) out.pointer; 1986 if (obj) { 1987 if (obj->type == ACPI_TYPE_BUFFER && 1988 (obj->buffer.length == sizeof(u32) || 1989 obj->buffer.length == sizeof(u64))) { 1990 devices = *((u32 *) obj->buffer.pointer); 1991 } else if (obj->type == ACPI_TYPE_INTEGER) { 1992 devices = (u32) obj->integer.value; 1993 } 1994 } 1995 1996 kfree(out.pointer); 1997 return devices; 1998 } 1999 2000 /* 2001 * Platform device 2002 */ 2003 static int acer_platform_probe(struct platform_device *device) 2004 { 2005 int err; 2006 2007 if (has_cap(ACER_CAP_MAILLED)) { 2008 err = acer_led_init(&device->dev); 2009 if (err) 2010 goto error_mailled; 2011 } 2012 2013 if (has_cap(ACER_CAP_BRIGHTNESS)) { 2014 err = acer_backlight_init(&device->dev); 2015 if (err) 2016 goto error_brightness; 2017 } 2018 2019 err = acer_rfkill_init(&device->dev); 2020 if (err) 2021 goto error_rfkill; 2022 2023 return err; 2024 2025 error_rfkill: 2026 if (has_cap(ACER_CAP_BRIGHTNESS)) 2027 acer_backlight_exit(); 2028 error_brightness: 2029 if (has_cap(ACER_CAP_MAILLED)) 2030 acer_led_exit(); 2031 error_mailled: 2032 return err; 2033 } 2034 2035 static int acer_platform_remove(struct platform_device *device) 2036 { 2037 if (has_cap(ACER_CAP_MAILLED)) 2038 acer_led_exit(); 2039 if (has_cap(ACER_CAP_BRIGHTNESS)) 2040 acer_backlight_exit(); 2041 2042 acer_rfkill_exit(); 2043 return 0; 2044 } 2045 2046 #ifdef CONFIG_PM_SLEEP 2047 static int acer_suspend(struct device *dev) 2048 { 2049 u32 value; 2050 struct acer_data *data = &interface->data; 2051 2052 if (!data) 2053 return -ENOMEM; 2054 2055 if (has_cap(ACER_CAP_MAILLED)) { 2056 get_u32(&value, ACER_CAP_MAILLED); 2057 set_u32(LED_OFF, ACER_CAP_MAILLED); 2058 data->mailled = value; 2059 } 2060 2061 if (has_cap(ACER_CAP_BRIGHTNESS)) { 2062 get_u32(&value, ACER_CAP_BRIGHTNESS); 2063 data->brightness = value; 2064 } 2065 2066 return 0; 2067 } 2068 2069 static int acer_resume(struct device *dev) 2070 { 2071 struct acer_data *data = &interface->data; 2072 2073 if (!data) 2074 return -ENOMEM; 2075 2076 if (has_cap(ACER_CAP_MAILLED)) 2077 set_u32(data->mailled, ACER_CAP_MAILLED); 2078 2079 if (has_cap(ACER_CAP_BRIGHTNESS)) 2080 set_u32(data->brightness, ACER_CAP_BRIGHTNESS); 2081 2082 if (has_cap(ACER_CAP_ACCEL)) 2083 acer_gsensor_init(); 2084 2085 return 0; 2086 } 2087 #else 2088 #define acer_suspend NULL 2089 #define acer_resume NULL 2090 #endif 2091 2092 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume); 2093 2094 static void acer_platform_shutdown(struct platform_device *device) 2095 { 2096 struct acer_data *data = &interface->data; 2097 2098 if (!data) 2099 return; 2100 2101 if (has_cap(ACER_CAP_MAILLED)) 2102 set_u32(LED_OFF, ACER_CAP_MAILLED); 2103 } 2104 2105 static struct platform_driver acer_platform_driver = { 2106 .driver = { 2107 .name = "acer-wmi", 2108 .pm = &acer_pm, 2109 }, 2110 .probe = acer_platform_probe, 2111 .remove = acer_platform_remove, 2112 .shutdown = acer_platform_shutdown, 2113 }; 2114 2115 static struct platform_device *acer_platform_device; 2116 2117 static void remove_debugfs(void) 2118 { 2119 debugfs_remove_recursive(interface->debug.root); 2120 } 2121 2122 static void __init create_debugfs(void) 2123 { 2124 interface->debug.root = debugfs_create_dir("acer-wmi", NULL); 2125 2126 debugfs_create_u32("devices", S_IRUGO, interface->debug.root, 2127 &interface->debug.wmid_devices); 2128 } 2129 2130 static int __init acer_wmi_init(void) 2131 { 2132 int err; 2133 2134 pr_info("Acer Laptop ACPI-WMI Extras\n"); 2135 2136 if (dmi_check_system(acer_blacklist)) { 2137 pr_info("Blacklisted hardware detected - not loading\n"); 2138 return -ENODEV; 2139 } 2140 2141 find_quirks(); 2142 2143 /* 2144 * The AMW0_GUID1 wmi is not only found on Acer family but also other 2145 * machines like Lenovo, Fujitsu and Medion. In the past days, 2146 * acer-wmi driver handled those non-Acer machines by quirks list. 2147 * But actually acer-wmi driver was loaded on any machines that have 2148 * AMW0_GUID1. This behavior is strange because those machines should 2149 * be supported by appropriate wmi drivers. e.g. fujitsu-laptop, 2150 * ideapad-laptop. So, here checks the machine that has AMW0_GUID1 2151 * should be in Acer/Gateway/Packard Bell white list, or it's already 2152 * in the past quirk list. 2153 */ 2154 if (wmi_has_guid(AMW0_GUID1) && 2155 !dmi_check_system(amw0_whitelist) && 2156 quirks == &quirk_unknown) { 2157 pr_debug("Unsupported machine has AMW0_GUID1, unable to load\n"); 2158 return -ENODEV; 2159 } 2160 2161 /* 2162 * Detect which ACPI-WMI interface we're using. 2163 */ 2164 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1)) 2165 interface = &AMW0_V2_interface; 2166 2167 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1)) 2168 interface = &wmid_interface; 2169 2170 if (wmi_has_guid(WMID_GUID3)) 2171 interface = &wmid_v2_interface; 2172 2173 if (interface) 2174 dmi_walk(type_aa_dmi_decode, NULL); 2175 2176 if (wmi_has_guid(WMID_GUID2) && interface) { 2177 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) { 2178 pr_err("Unable to detect available WMID devices\n"); 2179 return -ENODEV; 2180 } 2181 /* WMID always provides brightness methods */ 2182 interface->capability |= ACER_CAP_BRIGHTNESS; 2183 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) { 2184 pr_err("No WMID device detection method found\n"); 2185 return -ENODEV; 2186 } 2187 2188 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) { 2189 interface = &AMW0_interface; 2190 2191 if (ACPI_FAILURE(AMW0_set_capabilities())) { 2192 pr_err("Unable to detect available AMW0 devices\n"); 2193 return -ENODEV; 2194 } 2195 } 2196 2197 if (wmi_has_guid(AMW0_GUID1)) 2198 AMW0_find_mailled(); 2199 2200 if (!interface) { 2201 pr_err("No or unsupported WMI interface, unable to load\n"); 2202 return -ENODEV; 2203 } 2204 2205 set_quirks(); 2206 2207 if (dmi_check_system(video_vendor_dmi_table)) 2208 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor); 2209 2210 if (acpi_video_get_backlight_type() != acpi_backlight_vendor) 2211 interface->capability &= ~ACER_CAP_BRIGHTNESS; 2212 2213 if (wmi_has_guid(WMID_GUID3)) { 2214 if (ACPI_FAILURE(acer_wmi_enable_rf_button())) 2215 pr_warn("Cannot enable RF Button Driver\n"); 2216 2217 if (ec_raw_mode) { 2218 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) { 2219 pr_err("Cannot enable EC raw mode\n"); 2220 return -ENODEV; 2221 } 2222 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) { 2223 pr_err("Cannot enable Launch Manager mode\n"); 2224 return -ENODEV; 2225 } 2226 } else if (ec_raw_mode) { 2227 pr_info("No WMID EC raw mode enable method\n"); 2228 } 2229 2230 if (wmi_has_guid(ACERWMID_EVENT_GUID)) { 2231 err = acer_wmi_input_setup(); 2232 if (err) 2233 return err; 2234 err = acer_wmi_accel_setup(); 2235 if (err && err != -ENODEV) 2236 pr_warn("Cannot enable accelerometer\n"); 2237 } 2238 2239 err = platform_driver_register(&acer_platform_driver); 2240 if (err) { 2241 pr_err("Unable to register platform driver\n"); 2242 goto error_platform_register; 2243 } 2244 2245 acer_platform_device = platform_device_alloc("acer-wmi", -1); 2246 if (!acer_platform_device) { 2247 err = -ENOMEM; 2248 goto error_device_alloc; 2249 } 2250 2251 err = platform_device_add(acer_platform_device); 2252 if (err) 2253 goto error_device_add; 2254 2255 if (wmi_has_guid(WMID_GUID2)) { 2256 interface->debug.wmid_devices = get_wmid_devices(); 2257 create_debugfs(); 2258 } 2259 2260 /* Override any initial settings with values from the commandline */ 2261 acer_commandline_init(); 2262 2263 return 0; 2264 2265 error_device_add: 2266 platform_device_put(acer_platform_device); 2267 error_device_alloc: 2268 platform_driver_unregister(&acer_platform_driver); 2269 error_platform_register: 2270 if (wmi_has_guid(ACERWMID_EVENT_GUID)) 2271 acer_wmi_input_destroy(); 2272 if (has_cap(ACER_CAP_ACCEL)) 2273 acer_wmi_accel_destroy(); 2274 2275 return err; 2276 } 2277 2278 static void __exit acer_wmi_exit(void) 2279 { 2280 if (wmi_has_guid(ACERWMID_EVENT_GUID)) 2281 acer_wmi_input_destroy(); 2282 2283 if (has_cap(ACER_CAP_ACCEL)) 2284 acer_wmi_accel_destroy(); 2285 2286 remove_debugfs(); 2287 platform_device_unregister(acer_platform_device); 2288 platform_driver_unregister(&acer_platform_driver); 2289 2290 pr_info("Acer Laptop WMI Extras unloaded\n"); 2291 return; 2292 } 2293 2294 module_init(acer_wmi_init); 2295 module_exit(acer_wmi_exit); 2296