1 /* 2 * Acer WMI Laptop Extras 3 * 4 * Copyright (C) 2007-2009 Carlos Corbacho <carlos@strangeworlds.co.uk> 5 * 6 * Based on acer_acpi: 7 * Copyright (C) 2005-2007 E.M. Smith 8 * Copyright (C) 2007-2008 Carlos Corbacho <cathectic@gmail.com> 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; either version 2 of the License, or 13 * (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 23 */ 24 25 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 26 27 #include <linux/kernel.h> 28 #include <linux/module.h> 29 #include <linux/init.h> 30 #include <linux/types.h> 31 #include <linux/dmi.h> 32 #include <linux/fb.h> 33 #include <linux/backlight.h> 34 #include <linux/leds.h> 35 #include <linux/platform_device.h> 36 #include <linux/acpi.h> 37 #include <linux/i8042.h> 38 #include <linux/rfkill.h> 39 #include <linux/workqueue.h> 40 #include <linux/debugfs.h> 41 #include <linux/slab.h> 42 #include <linux/input.h> 43 #include <linux/input/sparse-keymap.h> 44 #include <acpi/video.h> 45 46 MODULE_AUTHOR("Carlos Corbacho"); 47 MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver"); 48 MODULE_LICENSE("GPL"); 49 50 /* 51 * Magic Number 52 * Meaning is unknown - this number is required for writing to ACPI for AMW0 53 * (it's also used in acerhk when directly accessing the BIOS) 54 */ 55 #define ACER_AMW0_WRITE 0x9610 56 57 /* 58 * Bit masks for the AMW0 interface 59 */ 60 #define ACER_AMW0_WIRELESS_MASK 0x35 61 #define ACER_AMW0_BLUETOOTH_MASK 0x34 62 #define ACER_AMW0_MAILLED_MASK 0x31 63 64 /* 65 * Method IDs for WMID interface 66 */ 67 #define ACER_WMID_GET_WIRELESS_METHODID 1 68 #define ACER_WMID_GET_BLUETOOTH_METHODID 2 69 #define ACER_WMID_GET_BRIGHTNESS_METHODID 3 70 #define ACER_WMID_SET_WIRELESS_METHODID 4 71 #define ACER_WMID_SET_BLUETOOTH_METHODID 5 72 #define ACER_WMID_SET_BRIGHTNESS_METHODID 6 73 #define ACER_WMID_GET_THREEG_METHODID 10 74 #define ACER_WMID_SET_THREEG_METHODID 11 75 76 /* 77 * Acer ACPI method GUIDs 78 */ 79 #define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB" 80 #define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C" 81 #define WMID_GUID1 "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3" 82 #define WMID_GUID2 "95764E09-FB56-4E83-B31A-37761F60994A" 83 #define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531" 84 85 /* 86 * Acer ACPI event GUIDs 87 */ 88 #define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026" 89 90 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB"); 91 MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"); 92 MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026"); 93 94 enum acer_wmi_event_ids { 95 WMID_HOTKEY_EVENT = 0x1, 96 WMID_ACCEL_EVENT = 0x5, 97 }; 98 99 static const struct key_entry acer_wmi_keymap[] __initconst = { 100 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */ 101 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */ 102 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */ 103 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */ 104 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */ 105 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */ 106 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */ 107 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */ 108 {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */ 109 {KE_IGNORE, 0x41, {KEY_MUTE} }, 110 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} }, 111 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} }, 112 {KE_IGNORE, 0x43, {KEY_NEXTSONG} }, 113 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} }, 114 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} }, 115 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} }, 116 {KE_IGNORE, 0x45, {KEY_STOP} }, 117 {KE_IGNORE, 0x50, {KEY_STOP} }, 118 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} }, 119 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} }, 120 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} }, 121 {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} }, 122 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} }, 123 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} }, 124 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */ 125 {KE_IGNORE, 0x81, {KEY_SLEEP} }, 126 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */ 127 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} }, 128 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} }, 129 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} }, 130 {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} }, 131 {KE_END, 0} 132 }; 133 134 static struct input_dev *acer_wmi_input_dev; 135 static struct input_dev *acer_wmi_accel_dev; 136 137 struct event_return_value { 138 u8 function; 139 u8 key_num; 140 u16 device_state; 141 u32 reserved; 142 } __attribute__((packed)); 143 144 /* 145 * GUID3 Get Device Status device flags 146 */ 147 #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */ 148 #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */ 149 #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */ 150 #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */ 151 #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */ 152 153 struct lm_input_params { 154 u8 function_num; /* Function Number */ 155 u16 commun_devices; /* Communication type devices default status */ 156 u16 devices; /* Other type devices default status */ 157 u8 lm_status; /* Launch Manager Status */ 158 u16 reserved; 159 } __attribute__((packed)); 160 161 struct lm_return_value { 162 u8 error_code; /* Error Code */ 163 u8 ec_return_value; /* EC Return Value */ 164 u16 reserved; 165 } __attribute__((packed)); 166 167 struct wmid3_gds_set_input_param { /* Set Device Status input parameter */ 168 u8 function_num; /* Function Number */ 169 u8 hotkey_number; /* Hotkey Number */ 170 u16 devices; /* Set Device */ 171 u8 volume_value; /* Volume Value */ 172 } __attribute__((packed)); 173 174 struct wmid3_gds_get_input_param { /* Get Device Status input parameter */ 175 u8 function_num; /* Function Number */ 176 u8 hotkey_number; /* Hotkey Number */ 177 u16 devices; /* Get Device */ 178 } __attribute__((packed)); 179 180 struct wmid3_gds_return_value { /* Get Device Status return value*/ 181 u8 error_code; /* Error Code */ 182 u8 ec_return_value; /* EC Return Value */ 183 u16 devices; /* Current Device Status */ 184 u32 reserved; 185 } __attribute__((packed)); 186 187 struct hotkey_function_type_aa { 188 u8 type; 189 u8 length; 190 u16 handle; 191 u16 commun_func_bitmap; 192 u16 application_func_bitmap; 193 u16 media_func_bitmap; 194 u16 display_func_bitmap; 195 u16 others_func_bitmap; 196 u8 commun_fn_key_number; 197 } __attribute__((packed)); 198 199 /* 200 * Interface capability flags 201 */ 202 #define ACER_CAP_MAILLED (1<<0) 203 #define ACER_CAP_WIRELESS (1<<1) 204 #define ACER_CAP_BLUETOOTH (1<<2) 205 #define ACER_CAP_BRIGHTNESS (1<<3) 206 #define ACER_CAP_THREEG (1<<4) 207 #define ACER_CAP_ACCEL (1<<5) 208 #define ACER_CAP_ANY (0xFFFFFFFF) 209 210 /* 211 * Interface type flags 212 */ 213 enum interface_flags { 214 ACER_AMW0, 215 ACER_AMW0_V2, 216 ACER_WMID, 217 ACER_WMID_v2, 218 }; 219 220 #define ACER_DEFAULT_WIRELESS 0 221 #define ACER_DEFAULT_BLUETOOTH 0 222 #define ACER_DEFAULT_MAILLED 0 223 #define ACER_DEFAULT_THREEG 0 224 225 static int max_brightness = 0xF; 226 227 static int mailled = -1; 228 static int brightness = -1; 229 static int threeg = -1; 230 static int force_series; 231 static bool ec_raw_mode; 232 static bool has_type_aa; 233 static u16 commun_func_bitmap; 234 static u8 commun_fn_key_number; 235 236 module_param(mailled, int, 0444); 237 module_param(brightness, int, 0444); 238 module_param(threeg, int, 0444); 239 module_param(force_series, int, 0444); 240 module_param(ec_raw_mode, bool, 0444); 241 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED"); 242 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness"); 243 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware"); 244 MODULE_PARM_DESC(force_series, "Force a different laptop series"); 245 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode"); 246 247 struct acer_data { 248 int mailled; 249 int threeg; 250 int brightness; 251 }; 252 253 struct acer_debug { 254 struct dentry *root; 255 struct dentry *devices; 256 u32 wmid_devices; 257 }; 258 259 static struct rfkill *wireless_rfkill; 260 static struct rfkill *bluetooth_rfkill; 261 static struct rfkill *threeg_rfkill; 262 static bool rfkill_inited; 263 264 /* Each low-level interface must define at least some of the following */ 265 struct wmi_interface { 266 /* The WMI device type */ 267 u32 type; 268 269 /* The capabilities this interface provides */ 270 u32 capability; 271 272 /* Private data for the current interface */ 273 struct acer_data data; 274 275 /* debugfs entries associated with this interface */ 276 struct acer_debug debug; 277 }; 278 279 /* The static interface pointer, points to the currently detected interface */ 280 static struct wmi_interface *interface; 281 282 /* 283 * Embedded Controller quirks 284 * Some laptops require us to directly access the EC to either enable or query 285 * features that are not available through WMI. 286 */ 287 288 struct quirk_entry { 289 u8 wireless; 290 u8 mailled; 291 s8 brightness; 292 u8 bluetooth; 293 }; 294 295 static struct quirk_entry *quirks; 296 297 static void __init set_quirks(void) 298 { 299 if (!interface) 300 return; 301 302 if (quirks->mailled) 303 interface->capability |= ACER_CAP_MAILLED; 304 305 if (quirks->brightness) 306 interface->capability |= ACER_CAP_BRIGHTNESS; 307 } 308 309 static int __init dmi_matched(const struct dmi_system_id *dmi) 310 { 311 quirks = dmi->driver_data; 312 return 1; 313 } 314 315 static struct quirk_entry quirk_unknown = { 316 }; 317 318 static struct quirk_entry quirk_acer_aspire_1520 = { 319 .brightness = -1, 320 }; 321 322 static struct quirk_entry quirk_acer_travelmate_2490 = { 323 .mailled = 1, 324 }; 325 326 /* This AMW0 laptop has no bluetooth */ 327 static struct quirk_entry quirk_medion_md_98300 = { 328 .wireless = 1, 329 }; 330 331 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = { 332 .wireless = 2, 333 }; 334 335 static struct quirk_entry quirk_lenovo_ideapad_s205 = { 336 .wireless = 3, 337 }; 338 339 /* The Aspire One has a dummy ACPI-WMI interface - disable it */ 340 static const struct dmi_system_id acer_blacklist[] __initconst = { 341 { 342 .ident = "Acer Aspire One (SSD)", 343 .matches = { 344 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 345 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"), 346 }, 347 }, 348 { 349 .ident = "Acer Aspire One (HDD)", 350 .matches = { 351 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 352 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"), 353 }, 354 }, 355 {} 356 }; 357 358 static const struct dmi_system_id amw0_whitelist[] __initconst = { 359 { 360 .ident = "Acer", 361 .matches = { 362 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 363 }, 364 }, 365 { 366 .ident = "Gateway", 367 .matches = { 368 DMI_MATCH(DMI_SYS_VENDOR, "Gateway"), 369 }, 370 }, 371 { 372 .ident = "Packard Bell", 373 .matches = { 374 DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"), 375 }, 376 }, 377 {} 378 }; 379 380 /* 381 * This quirk table is only for Acer/Gateway/Packard Bell family 382 * that those machines are supported by acer-wmi driver. 383 */ 384 static const struct dmi_system_id acer_quirks[] __initconst = { 385 { 386 .callback = dmi_matched, 387 .ident = "Acer Aspire 1360", 388 .matches = { 389 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 390 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"), 391 }, 392 .driver_data = &quirk_acer_aspire_1520, 393 }, 394 { 395 .callback = dmi_matched, 396 .ident = "Acer Aspire 1520", 397 .matches = { 398 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 399 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"), 400 }, 401 .driver_data = &quirk_acer_aspire_1520, 402 }, 403 { 404 .callback = dmi_matched, 405 .ident = "Acer Aspire 3100", 406 .matches = { 407 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 408 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"), 409 }, 410 .driver_data = &quirk_acer_travelmate_2490, 411 }, 412 { 413 .callback = dmi_matched, 414 .ident = "Acer Aspire 3610", 415 .matches = { 416 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 417 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"), 418 }, 419 .driver_data = &quirk_acer_travelmate_2490, 420 }, 421 { 422 .callback = dmi_matched, 423 .ident = "Acer Aspire 5100", 424 .matches = { 425 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 426 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"), 427 }, 428 .driver_data = &quirk_acer_travelmate_2490, 429 }, 430 { 431 .callback = dmi_matched, 432 .ident = "Acer Aspire 5610", 433 .matches = { 434 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 435 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"), 436 }, 437 .driver_data = &quirk_acer_travelmate_2490, 438 }, 439 { 440 .callback = dmi_matched, 441 .ident = "Acer Aspire 5630", 442 .matches = { 443 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 444 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"), 445 }, 446 .driver_data = &quirk_acer_travelmate_2490, 447 }, 448 { 449 .callback = dmi_matched, 450 .ident = "Acer Aspire 5650", 451 .matches = { 452 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 453 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"), 454 }, 455 .driver_data = &quirk_acer_travelmate_2490, 456 }, 457 { 458 .callback = dmi_matched, 459 .ident = "Acer Aspire 5680", 460 .matches = { 461 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 462 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"), 463 }, 464 .driver_data = &quirk_acer_travelmate_2490, 465 }, 466 { 467 .callback = dmi_matched, 468 .ident = "Acer Aspire 9110", 469 .matches = { 470 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 471 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"), 472 }, 473 .driver_data = &quirk_acer_travelmate_2490, 474 }, 475 { 476 .callback = dmi_matched, 477 .ident = "Acer TravelMate 2490", 478 .matches = { 479 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 480 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"), 481 }, 482 .driver_data = &quirk_acer_travelmate_2490, 483 }, 484 { 485 .callback = dmi_matched, 486 .ident = "Acer TravelMate 4200", 487 .matches = { 488 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 489 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"), 490 }, 491 .driver_data = &quirk_acer_travelmate_2490, 492 }, 493 {} 494 }; 495 496 /* 497 * This quirk list is for those non-acer machines that have AMW0_GUID1 498 * but supported by acer-wmi in past days. Keeping this quirk list here 499 * is only for backward compatible. Please do not add new machine to 500 * here anymore. Those non-acer machines should be supported by 501 * appropriate wmi drivers. 502 */ 503 static const struct dmi_system_id non_acer_quirks[] __initconst = { 504 { 505 .callback = dmi_matched, 506 .ident = "Fujitsu Siemens Amilo Li 1718", 507 .matches = { 508 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 509 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"), 510 }, 511 .driver_data = &quirk_fujitsu_amilo_li_1718, 512 }, 513 { 514 .callback = dmi_matched, 515 .ident = "Medion MD 98300", 516 .matches = { 517 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"), 518 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"), 519 }, 520 .driver_data = &quirk_medion_md_98300, 521 }, 522 { 523 .callback = dmi_matched, 524 .ident = "Lenovo Ideapad S205", 525 .matches = { 526 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 527 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"), 528 }, 529 .driver_data = &quirk_lenovo_ideapad_s205, 530 }, 531 { 532 .callback = dmi_matched, 533 .ident = "Lenovo Ideapad S205 (Brazos)", 534 .matches = { 535 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 536 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"), 537 }, 538 .driver_data = &quirk_lenovo_ideapad_s205, 539 }, 540 { 541 .callback = dmi_matched, 542 .ident = "Lenovo 3000 N200", 543 .matches = { 544 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 545 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"), 546 }, 547 .driver_data = &quirk_fujitsu_amilo_li_1718, 548 }, 549 { 550 .callback = dmi_matched, 551 .ident = "Lenovo Ideapad S205-10382JG", 552 .matches = { 553 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 554 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"), 555 }, 556 .driver_data = &quirk_lenovo_ideapad_s205, 557 }, 558 { 559 .callback = dmi_matched, 560 .ident = "Lenovo Ideapad S205-1038DPG", 561 .matches = { 562 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 563 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"), 564 }, 565 .driver_data = &quirk_lenovo_ideapad_s205, 566 }, 567 {} 568 }; 569 570 static int __init 571 video_set_backlight_video_vendor(const struct dmi_system_id *d) 572 { 573 interface->capability &= ~ACER_CAP_BRIGHTNESS; 574 pr_info("Brightness must be controlled by generic video driver\n"); 575 return 0; 576 } 577 578 static const struct dmi_system_id video_vendor_dmi_table[] __initconst = { 579 { 580 .callback = video_set_backlight_video_vendor, 581 .ident = "Acer TravelMate 4750", 582 .matches = { 583 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), 584 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"), 585 }, 586 }, 587 { 588 .callback = video_set_backlight_video_vendor, 589 .ident = "Acer Extensa 5235", 590 .matches = { 591 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), 592 DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"), 593 }, 594 }, 595 { 596 .callback = video_set_backlight_video_vendor, 597 .ident = "Acer TravelMate 5760", 598 .matches = { 599 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), 600 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"), 601 }, 602 }, 603 { 604 .callback = video_set_backlight_video_vendor, 605 .ident = "Acer Aspire 5750", 606 .matches = { 607 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), 608 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"), 609 }, 610 }, 611 { 612 .callback = video_set_backlight_video_vendor, 613 .ident = "Acer Aspire 5741", 614 .matches = { 615 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), 616 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"), 617 }, 618 }, 619 { 620 /* 621 * Note no video_set_backlight_video_vendor, we must use the 622 * acer interface, as there is no native backlight interface. 623 */ 624 .ident = "Acer KAV80", 625 .matches = { 626 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 627 DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"), 628 }, 629 }, 630 {} 631 }; 632 633 /* Find which quirks are needed for a particular vendor/ model pair */ 634 static void __init find_quirks(void) 635 { 636 if (!force_series) { 637 dmi_check_system(acer_quirks); 638 dmi_check_system(non_acer_quirks); 639 } else if (force_series == 2490) { 640 quirks = &quirk_acer_travelmate_2490; 641 } 642 643 if (quirks == NULL) 644 quirks = &quirk_unknown; 645 646 set_quirks(); 647 } 648 649 /* 650 * General interface convenience methods 651 */ 652 653 static bool has_cap(u32 cap) 654 { 655 if ((interface->capability & cap) != 0) 656 return 1; 657 658 return 0; 659 } 660 661 /* 662 * AMW0 (V1) interface 663 */ 664 struct wmab_args { 665 u32 eax; 666 u32 ebx; 667 u32 ecx; 668 u32 edx; 669 }; 670 671 struct wmab_ret { 672 u32 eax; 673 u32 ebx; 674 u32 ecx; 675 u32 edx; 676 u32 eex; 677 }; 678 679 static acpi_status wmab_execute(struct wmab_args *regbuf, 680 struct acpi_buffer *result) 681 { 682 struct acpi_buffer input; 683 acpi_status status; 684 input.length = sizeof(struct wmab_args); 685 input.pointer = (u8 *)regbuf; 686 687 status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result); 688 689 return status; 690 } 691 692 static acpi_status AMW0_get_u32(u32 *value, u32 cap) 693 { 694 int err; 695 u8 result; 696 697 switch (cap) { 698 case ACER_CAP_MAILLED: 699 switch (quirks->mailled) { 700 default: 701 err = ec_read(0xA, &result); 702 if (err) 703 return AE_ERROR; 704 *value = (result >> 7) & 0x1; 705 return AE_OK; 706 } 707 break; 708 case ACER_CAP_WIRELESS: 709 switch (quirks->wireless) { 710 case 1: 711 err = ec_read(0x7B, &result); 712 if (err) 713 return AE_ERROR; 714 *value = result & 0x1; 715 return AE_OK; 716 case 2: 717 err = ec_read(0x71, &result); 718 if (err) 719 return AE_ERROR; 720 *value = result & 0x1; 721 return AE_OK; 722 case 3: 723 err = ec_read(0x78, &result); 724 if (err) 725 return AE_ERROR; 726 *value = result & 0x1; 727 return AE_OK; 728 default: 729 err = ec_read(0xA, &result); 730 if (err) 731 return AE_ERROR; 732 *value = (result >> 2) & 0x1; 733 return AE_OK; 734 } 735 break; 736 case ACER_CAP_BLUETOOTH: 737 switch (quirks->bluetooth) { 738 default: 739 err = ec_read(0xA, &result); 740 if (err) 741 return AE_ERROR; 742 *value = (result >> 4) & 0x1; 743 return AE_OK; 744 } 745 break; 746 case ACER_CAP_BRIGHTNESS: 747 switch (quirks->brightness) { 748 default: 749 err = ec_read(0x83, &result); 750 if (err) 751 return AE_ERROR; 752 *value = result; 753 return AE_OK; 754 } 755 break; 756 default: 757 return AE_ERROR; 758 } 759 return AE_OK; 760 } 761 762 static acpi_status AMW0_set_u32(u32 value, u32 cap) 763 { 764 struct wmab_args args; 765 766 args.eax = ACER_AMW0_WRITE; 767 args.ebx = value ? (1<<8) : 0; 768 args.ecx = args.edx = 0; 769 770 switch (cap) { 771 case ACER_CAP_MAILLED: 772 if (value > 1) 773 return AE_BAD_PARAMETER; 774 args.ebx |= ACER_AMW0_MAILLED_MASK; 775 break; 776 case ACER_CAP_WIRELESS: 777 if (value > 1) 778 return AE_BAD_PARAMETER; 779 args.ebx |= ACER_AMW0_WIRELESS_MASK; 780 break; 781 case ACER_CAP_BLUETOOTH: 782 if (value > 1) 783 return AE_BAD_PARAMETER; 784 args.ebx |= ACER_AMW0_BLUETOOTH_MASK; 785 break; 786 case ACER_CAP_BRIGHTNESS: 787 if (value > max_brightness) 788 return AE_BAD_PARAMETER; 789 switch (quirks->brightness) { 790 default: 791 return ec_write(0x83, value); 792 break; 793 } 794 default: 795 return AE_ERROR; 796 } 797 798 /* Actually do the set */ 799 return wmab_execute(&args, NULL); 800 } 801 802 static acpi_status __init AMW0_find_mailled(void) 803 { 804 struct wmab_args args; 805 struct wmab_ret ret; 806 acpi_status status = AE_OK; 807 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL }; 808 union acpi_object *obj; 809 810 args.eax = 0x86; 811 args.ebx = args.ecx = args.edx = 0; 812 813 status = wmab_execute(&args, &out); 814 if (ACPI_FAILURE(status)) 815 return status; 816 817 obj = (union acpi_object *) out.pointer; 818 if (obj && obj->type == ACPI_TYPE_BUFFER && 819 obj->buffer.length == sizeof(struct wmab_ret)) { 820 ret = *((struct wmab_ret *) obj->buffer.pointer); 821 } else { 822 kfree(out.pointer); 823 return AE_ERROR; 824 } 825 826 if (ret.eex & 0x1) 827 interface->capability |= ACER_CAP_MAILLED; 828 829 kfree(out.pointer); 830 831 return AE_OK; 832 } 833 834 static const struct acpi_device_id norfkill_ids[] __initconst = { 835 { "VPC2004", 0}, 836 { "IBM0068", 0}, 837 { "LEN0068", 0}, 838 { "SNY5001", 0}, /* sony-laptop in charge */ 839 { "HPQ6601", 0}, 840 { "", 0}, 841 }; 842 843 static int __init AMW0_set_cap_acpi_check_device(void) 844 { 845 const struct acpi_device_id *id; 846 847 for (id = norfkill_ids; id->id[0]; id++) 848 if (acpi_dev_found(id->id)) 849 return true; 850 851 return false; 852 } 853 854 static acpi_status __init AMW0_set_capabilities(void) 855 { 856 struct wmab_args args; 857 struct wmab_ret ret; 858 acpi_status status; 859 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL }; 860 union acpi_object *obj; 861 862 /* 863 * On laptops with this strange GUID (non Acer), normal probing doesn't 864 * work. 865 */ 866 if (wmi_has_guid(AMW0_GUID2)) { 867 if ((quirks != &quirk_unknown) || 868 !AMW0_set_cap_acpi_check_device()) 869 interface->capability |= ACER_CAP_WIRELESS; 870 return AE_OK; 871 } 872 873 args.eax = ACER_AMW0_WRITE; 874 args.ecx = args.edx = 0; 875 876 args.ebx = 0xa2 << 8; 877 args.ebx |= ACER_AMW0_WIRELESS_MASK; 878 879 status = wmab_execute(&args, &out); 880 if (ACPI_FAILURE(status)) 881 return status; 882 883 obj = out.pointer; 884 if (obj && obj->type == ACPI_TYPE_BUFFER && 885 obj->buffer.length == sizeof(struct wmab_ret)) { 886 ret = *((struct wmab_ret *) obj->buffer.pointer); 887 } else { 888 status = AE_ERROR; 889 goto out; 890 } 891 892 if (ret.eax & 0x1) 893 interface->capability |= ACER_CAP_WIRELESS; 894 895 args.ebx = 2 << 8; 896 args.ebx |= ACER_AMW0_BLUETOOTH_MASK; 897 898 /* 899 * It's ok to use existing buffer for next wmab_execute call. 900 * But we need to kfree(out.pointer) if next wmab_execute fail. 901 */ 902 status = wmab_execute(&args, &out); 903 if (ACPI_FAILURE(status)) 904 goto out; 905 906 obj = (union acpi_object *) out.pointer; 907 if (obj && obj->type == ACPI_TYPE_BUFFER 908 && obj->buffer.length == sizeof(struct wmab_ret)) { 909 ret = *((struct wmab_ret *) obj->buffer.pointer); 910 } else { 911 status = AE_ERROR; 912 goto out; 913 } 914 915 if (ret.eax & 0x1) 916 interface->capability |= ACER_CAP_BLUETOOTH; 917 918 /* 919 * This appears to be safe to enable, since all Wistron based laptops 920 * appear to use the same EC register for brightness, even if they 921 * differ for wireless, etc 922 */ 923 if (quirks->brightness >= 0) 924 interface->capability |= ACER_CAP_BRIGHTNESS; 925 926 status = AE_OK; 927 out: 928 kfree(out.pointer); 929 return status; 930 } 931 932 static struct wmi_interface AMW0_interface = { 933 .type = ACER_AMW0, 934 }; 935 936 static struct wmi_interface AMW0_V2_interface = { 937 .type = ACER_AMW0_V2, 938 }; 939 940 /* 941 * New interface (The WMID interface) 942 */ 943 static acpi_status 944 WMI_execute_u32(u32 method_id, u32 in, u32 *out) 945 { 946 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) }; 947 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL }; 948 union acpi_object *obj; 949 u32 tmp = 0; 950 acpi_status status; 951 952 status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result); 953 954 if (ACPI_FAILURE(status)) 955 return status; 956 957 obj = (union acpi_object *) result.pointer; 958 if (obj) { 959 if (obj->type == ACPI_TYPE_BUFFER && 960 (obj->buffer.length == sizeof(u32) || 961 obj->buffer.length == sizeof(u64))) { 962 tmp = *((u32 *) obj->buffer.pointer); 963 } else if (obj->type == ACPI_TYPE_INTEGER) { 964 tmp = (u32) obj->integer.value; 965 } 966 } 967 968 if (out) 969 *out = tmp; 970 971 kfree(result.pointer); 972 973 return status; 974 } 975 976 static acpi_status WMID_get_u32(u32 *value, u32 cap) 977 { 978 acpi_status status; 979 u8 tmp; 980 u32 result, method_id = 0; 981 982 switch (cap) { 983 case ACER_CAP_WIRELESS: 984 method_id = ACER_WMID_GET_WIRELESS_METHODID; 985 break; 986 case ACER_CAP_BLUETOOTH: 987 method_id = ACER_WMID_GET_BLUETOOTH_METHODID; 988 break; 989 case ACER_CAP_BRIGHTNESS: 990 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID; 991 break; 992 case ACER_CAP_THREEG: 993 method_id = ACER_WMID_GET_THREEG_METHODID; 994 break; 995 case ACER_CAP_MAILLED: 996 if (quirks->mailled == 1) { 997 ec_read(0x9f, &tmp); 998 *value = tmp & 0x1; 999 return 0; 1000 } 1001 default: 1002 return AE_ERROR; 1003 } 1004 status = WMI_execute_u32(method_id, 0, &result); 1005 1006 if (ACPI_SUCCESS(status)) 1007 *value = (u8)result; 1008 1009 return status; 1010 } 1011 1012 static acpi_status WMID_set_u32(u32 value, u32 cap) 1013 { 1014 u32 method_id = 0; 1015 char param; 1016 1017 switch (cap) { 1018 case ACER_CAP_BRIGHTNESS: 1019 if (value > max_brightness) 1020 return AE_BAD_PARAMETER; 1021 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID; 1022 break; 1023 case ACER_CAP_WIRELESS: 1024 if (value > 1) 1025 return AE_BAD_PARAMETER; 1026 method_id = ACER_WMID_SET_WIRELESS_METHODID; 1027 break; 1028 case ACER_CAP_BLUETOOTH: 1029 if (value > 1) 1030 return AE_BAD_PARAMETER; 1031 method_id = ACER_WMID_SET_BLUETOOTH_METHODID; 1032 break; 1033 case ACER_CAP_THREEG: 1034 if (value > 1) 1035 return AE_BAD_PARAMETER; 1036 method_id = ACER_WMID_SET_THREEG_METHODID; 1037 break; 1038 case ACER_CAP_MAILLED: 1039 if (value > 1) 1040 return AE_BAD_PARAMETER; 1041 if (quirks->mailled == 1) { 1042 param = value ? 0x92 : 0x93; 1043 i8042_lock_chip(); 1044 i8042_command(¶m, 0x1059); 1045 i8042_unlock_chip(); 1046 return 0; 1047 } 1048 break; 1049 default: 1050 return AE_ERROR; 1051 } 1052 return WMI_execute_u32(method_id, (u32)value, NULL); 1053 } 1054 1055 static acpi_status wmid3_get_device_status(u32 *value, u16 device) 1056 { 1057 struct wmid3_gds_return_value return_value; 1058 acpi_status status; 1059 union acpi_object *obj; 1060 struct wmid3_gds_get_input_param params = { 1061 .function_num = 0x1, 1062 .hotkey_number = commun_fn_key_number, 1063 .devices = device, 1064 }; 1065 struct acpi_buffer input = { 1066 sizeof(struct wmid3_gds_get_input_param), 1067 ¶ms 1068 }; 1069 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; 1070 1071 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output); 1072 if (ACPI_FAILURE(status)) 1073 return status; 1074 1075 obj = output.pointer; 1076 1077 if (!obj) 1078 return AE_ERROR; 1079 else if (obj->type != ACPI_TYPE_BUFFER) { 1080 kfree(obj); 1081 return AE_ERROR; 1082 } 1083 if (obj->buffer.length != 8) { 1084 pr_warn("Unknown buffer length %d\n", obj->buffer.length); 1085 kfree(obj); 1086 return AE_ERROR; 1087 } 1088 1089 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer); 1090 kfree(obj); 1091 1092 if (return_value.error_code || return_value.ec_return_value) 1093 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n", 1094 device, 1095 return_value.error_code, 1096 return_value.ec_return_value); 1097 else 1098 *value = !!(return_value.devices & device); 1099 1100 return status; 1101 } 1102 1103 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap) 1104 { 1105 u16 device; 1106 1107 switch (cap) { 1108 case ACER_CAP_WIRELESS: 1109 device = ACER_WMID3_GDS_WIRELESS; 1110 break; 1111 case ACER_CAP_BLUETOOTH: 1112 device = ACER_WMID3_GDS_BLUETOOTH; 1113 break; 1114 case ACER_CAP_THREEG: 1115 device = ACER_WMID3_GDS_THREEG; 1116 break; 1117 default: 1118 return AE_ERROR; 1119 } 1120 return wmid3_get_device_status(value, device); 1121 } 1122 1123 static acpi_status wmid3_set_device_status(u32 value, u16 device) 1124 { 1125 struct wmid3_gds_return_value return_value; 1126 acpi_status status; 1127 union acpi_object *obj; 1128 u16 devices; 1129 struct wmid3_gds_get_input_param get_params = { 1130 .function_num = 0x1, 1131 .hotkey_number = commun_fn_key_number, 1132 .devices = commun_func_bitmap, 1133 }; 1134 struct acpi_buffer get_input = { 1135 sizeof(struct wmid3_gds_get_input_param), 1136 &get_params 1137 }; 1138 struct wmid3_gds_set_input_param set_params = { 1139 .function_num = 0x2, 1140 .hotkey_number = commun_fn_key_number, 1141 .devices = commun_func_bitmap, 1142 }; 1143 struct acpi_buffer set_input = { 1144 sizeof(struct wmid3_gds_set_input_param), 1145 &set_params 1146 }; 1147 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; 1148 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL }; 1149 1150 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output); 1151 if (ACPI_FAILURE(status)) 1152 return status; 1153 1154 obj = output.pointer; 1155 1156 if (!obj) 1157 return AE_ERROR; 1158 else if (obj->type != ACPI_TYPE_BUFFER) { 1159 kfree(obj); 1160 return AE_ERROR; 1161 } 1162 if (obj->buffer.length != 8) { 1163 pr_warn("Unknown buffer length %d\n", obj->buffer.length); 1164 kfree(obj); 1165 return AE_ERROR; 1166 } 1167 1168 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer); 1169 kfree(obj); 1170 1171 if (return_value.error_code || return_value.ec_return_value) { 1172 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n", 1173 return_value.error_code, 1174 return_value.ec_return_value); 1175 return status; 1176 } 1177 1178 devices = return_value.devices; 1179 set_params.devices = (value) ? (devices | device) : (devices & ~device); 1180 1181 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2); 1182 if (ACPI_FAILURE(status)) 1183 return status; 1184 1185 obj = output2.pointer; 1186 1187 if (!obj) 1188 return AE_ERROR; 1189 else if (obj->type != ACPI_TYPE_BUFFER) { 1190 kfree(obj); 1191 return AE_ERROR; 1192 } 1193 if (obj->buffer.length != 4) { 1194 pr_warn("Unknown buffer length %d\n", obj->buffer.length); 1195 kfree(obj); 1196 return AE_ERROR; 1197 } 1198 1199 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer); 1200 kfree(obj); 1201 1202 if (return_value.error_code || return_value.ec_return_value) 1203 pr_warn("Set Device Status failed: 0x%x - 0x%x\n", 1204 return_value.error_code, 1205 return_value.ec_return_value); 1206 1207 return status; 1208 } 1209 1210 static acpi_status wmid_v2_set_u32(u32 value, u32 cap) 1211 { 1212 u16 device; 1213 1214 switch (cap) { 1215 case ACER_CAP_WIRELESS: 1216 device = ACER_WMID3_GDS_WIRELESS; 1217 break; 1218 case ACER_CAP_BLUETOOTH: 1219 device = ACER_WMID3_GDS_BLUETOOTH; 1220 break; 1221 case ACER_CAP_THREEG: 1222 device = ACER_WMID3_GDS_THREEG; 1223 break; 1224 default: 1225 return AE_ERROR; 1226 } 1227 return wmid3_set_device_status(value, device); 1228 } 1229 1230 static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d) 1231 { 1232 struct hotkey_function_type_aa *type_aa; 1233 1234 /* We are looking for OEM-specific Type AAh */ 1235 if (header->type != 0xAA) 1236 return; 1237 1238 has_type_aa = true; 1239 type_aa = (struct hotkey_function_type_aa *) header; 1240 1241 pr_info("Function bitmap for Communication Button: 0x%x\n", 1242 type_aa->commun_func_bitmap); 1243 commun_func_bitmap = type_aa->commun_func_bitmap; 1244 1245 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS) 1246 interface->capability |= ACER_CAP_WIRELESS; 1247 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG) 1248 interface->capability |= ACER_CAP_THREEG; 1249 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH) 1250 interface->capability |= ACER_CAP_BLUETOOTH; 1251 1252 commun_fn_key_number = type_aa->commun_fn_key_number; 1253 } 1254 1255 static acpi_status __init WMID_set_capabilities(void) 1256 { 1257 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL}; 1258 union acpi_object *obj; 1259 acpi_status status; 1260 u32 devices; 1261 1262 status = wmi_query_block(WMID_GUID2, 1, &out); 1263 if (ACPI_FAILURE(status)) 1264 return status; 1265 1266 obj = (union acpi_object *) out.pointer; 1267 if (obj) { 1268 if (obj->type == ACPI_TYPE_BUFFER && 1269 (obj->buffer.length == sizeof(u32) || 1270 obj->buffer.length == sizeof(u64))) { 1271 devices = *((u32 *) obj->buffer.pointer); 1272 } else if (obj->type == ACPI_TYPE_INTEGER) { 1273 devices = (u32) obj->integer.value; 1274 } else { 1275 kfree(out.pointer); 1276 return AE_ERROR; 1277 } 1278 } else { 1279 kfree(out.pointer); 1280 return AE_ERROR; 1281 } 1282 1283 pr_info("Function bitmap for Communication Device: 0x%x\n", devices); 1284 if (devices & 0x07) 1285 interface->capability |= ACER_CAP_WIRELESS; 1286 if (devices & 0x40) 1287 interface->capability |= ACER_CAP_THREEG; 1288 if (devices & 0x10) 1289 interface->capability |= ACER_CAP_BLUETOOTH; 1290 1291 if (!(devices & 0x20)) 1292 max_brightness = 0x9; 1293 1294 kfree(out.pointer); 1295 return status; 1296 } 1297 1298 static struct wmi_interface wmid_interface = { 1299 .type = ACER_WMID, 1300 }; 1301 1302 static struct wmi_interface wmid_v2_interface = { 1303 .type = ACER_WMID_v2, 1304 }; 1305 1306 /* 1307 * Generic Device (interface-independent) 1308 */ 1309 1310 static acpi_status get_u32(u32 *value, u32 cap) 1311 { 1312 acpi_status status = AE_ERROR; 1313 1314 switch (interface->type) { 1315 case ACER_AMW0: 1316 status = AMW0_get_u32(value, cap); 1317 break; 1318 case ACER_AMW0_V2: 1319 if (cap == ACER_CAP_MAILLED) { 1320 status = AMW0_get_u32(value, cap); 1321 break; 1322 } 1323 case ACER_WMID: 1324 status = WMID_get_u32(value, cap); 1325 break; 1326 case ACER_WMID_v2: 1327 if (cap & (ACER_CAP_WIRELESS | 1328 ACER_CAP_BLUETOOTH | 1329 ACER_CAP_THREEG)) 1330 status = wmid_v2_get_u32(value, cap); 1331 else if (wmi_has_guid(WMID_GUID2)) 1332 status = WMID_get_u32(value, cap); 1333 break; 1334 } 1335 1336 return status; 1337 } 1338 1339 static acpi_status set_u32(u32 value, u32 cap) 1340 { 1341 acpi_status status; 1342 1343 if (interface->capability & cap) { 1344 switch (interface->type) { 1345 case ACER_AMW0: 1346 return AMW0_set_u32(value, cap); 1347 case ACER_AMW0_V2: 1348 if (cap == ACER_CAP_MAILLED) 1349 return AMW0_set_u32(value, cap); 1350 1351 /* 1352 * On some models, some WMID methods don't toggle 1353 * properly. For those cases, we want to run the AMW0 1354 * method afterwards to be certain we've really toggled 1355 * the device state. 1356 */ 1357 if (cap == ACER_CAP_WIRELESS || 1358 cap == ACER_CAP_BLUETOOTH) { 1359 status = WMID_set_u32(value, cap); 1360 if (ACPI_FAILURE(status)) 1361 return status; 1362 1363 return AMW0_set_u32(value, cap); 1364 } 1365 case ACER_WMID: 1366 return WMID_set_u32(value, cap); 1367 case ACER_WMID_v2: 1368 if (cap & (ACER_CAP_WIRELESS | 1369 ACER_CAP_BLUETOOTH | 1370 ACER_CAP_THREEG)) 1371 return wmid_v2_set_u32(value, cap); 1372 else if (wmi_has_guid(WMID_GUID2)) 1373 return WMID_set_u32(value, cap); 1374 default: 1375 return AE_BAD_PARAMETER; 1376 } 1377 } 1378 return AE_BAD_PARAMETER; 1379 } 1380 1381 static void __init acer_commandline_init(void) 1382 { 1383 /* 1384 * These will all fail silently if the value given is invalid, or the 1385 * capability isn't available on the given interface 1386 */ 1387 if (mailled >= 0) 1388 set_u32(mailled, ACER_CAP_MAILLED); 1389 if (!has_type_aa && threeg >= 0) 1390 set_u32(threeg, ACER_CAP_THREEG); 1391 if (brightness >= 0) 1392 set_u32(brightness, ACER_CAP_BRIGHTNESS); 1393 } 1394 1395 /* 1396 * LED device (Mail LED only, no other LEDs known yet) 1397 */ 1398 static void mail_led_set(struct led_classdev *led_cdev, 1399 enum led_brightness value) 1400 { 1401 set_u32(value, ACER_CAP_MAILLED); 1402 } 1403 1404 static struct led_classdev mail_led = { 1405 .name = "acer-wmi::mail", 1406 .brightness_set = mail_led_set, 1407 }; 1408 1409 static int acer_led_init(struct device *dev) 1410 { 1411 return led_classdev_register(dev, &mail_led); 1412 } 1413 1414 static void acer_led_exit(void) 1415 { 1416 set_u32(LED_OFF, ACER_CAP_MAILLED); 1417 led_classdev_unregister(&mail_led); 1418 } 1419 1420 /* 1421 * Backlight device 1422 */ 1423 static struct backlight_device *acer_backlight_device; 1424 1425 static int read_brightness(struct backlight_device *bd) 1426 { 1427 u32 value; 1428 get_u32(&value, ACER_CAP_BRIGHTNESS); 1429 return value; 1430 } 1431 1432 static int update_bl_status(struct backlight_device *bd) 1433 { 1434 int intensity = bd->props.brightness; 1435 1436 if (bd->props.power != FB_BLANK_UNBLANK) 1437 intensity = 0; 1438 if (bd->props.fb_blank != FB_BLANK_UNBLANK) 1439 intensity = 0; 1440 1441 set_u32(intensity, ACER_CAP_BRIGHTNESS); 1442 1443 return 0; 1444 } 1445 1446 static const struct backlight_ops acer_bl_ops = { 1447 .get_brightness = read_brightness, 1448 .update_status = update_bl_status, 1449 }; 1450 1451 static int acer_backlight_init(struct device *dev) 1452 { 1453 struct backlight_properties props; 1454 struct backlight_device *bd; 1455 1456 memset(&props, 0, sizeof(struct backlight_properties)); 1457 props.type = BACKLIGHT_PLATFORM; 1458 props.max_brightness = max_brightness; 1459 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops, 1460 &props); 1461 if (IS_ERR(bd)) { 1462 pr_err("Could not register Acer backlight device\n"); 1463 acer_backlight_device = NULL; 1464 return PTR_ERR(bd); 1465 } 1466 1467 acer_backlight_device = bd; 1468 1469 bd->props.power = FB_BLANK_UNBLANK; 1470 bd->props.brightness = read_brightness(bd); 1471 backlight_update_status(bd); 1472 return 0; 1473 } 1474 1475 static void acer_backlight_exit(void) 1476 { 1477 backlight_device_unregister(acer_backlight_device); 1478 } 1479 1480 /* 1481 * Accelerometer device 1482 */ 1483 static acpi_handle gsensor_handle; 1484 1485 static int acer_gsensor_init(void) 1486 { 1487 acpi_status status; 1488 struct acpi_buffer output; 1489 union acpi_object out_obj; 1490 1491 output.length = sizeof(out_obj); 1492 output.pointer = &out_obj; 1493 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output); 1494 if (ACPI_FAILURE(status)) 1495 return -1; 1496 1497 return 0; 1498 } 1499 1500 static int acer_gsensor_open(struct input_dev *input) 1501 { 1502 return acer_gsensor_init(); 1503 } 1504 1505 static int acer_gsensor_event(void) 1506 { 1507 acpi_status status; 1508 struct acpi_buffer output; 1509 union acpi_object out_obj[5]; 1510 1511 if (!has_cap(ACER_CAP_ACCEL)) 1512 return -1; 1513 1514 output.length = sizeof(out_obj); 1515 output.pointer = out_obj; 1516 1517 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output); 1518 if (ACPI_FAILURE(status)) 1519 return -1; 1520 1521 if (out_obj->package.count != 4) 1522 return -1; 1523 1524 input_report_abs(acer_wmi_accel_dev, ABS_X, 1525 (s16)out_obj->package.elements[0].integer.value); 1526 input_report_abs(acer_wmi_accel_dev, ABS_Y, 1527 (s16)out_obj->package.elements[1].integer.value); 1528 input_report_abs(acer_wmi_accel_dev, ABS_Z, 1529 (s16)out_obj->package.elements[2].integer.value); 1530 input_sync(acer_wmi_accel_dev); 1531 return 0; 1532 } 1533 1534 /* 1535 * Rfkill devices 1536 */ 1537 static void acer_rfkill_update(struct work_struct *ignored); 1538 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update); 1539 static void acer_rfkill_update(struct work_struct *ignored) 1540 { 1541 u32 state; 1542 acpi_status status; 1543 1544 if (has_cap(ACER_CAP_WIRELESS)) { 1545 status = get_u32(&state, ACER_CAP_WIRELESS); 1546 if (ACPI_SUCCESS(status)) { 1547 if (quirks->wireless == 3) 1548 rfkill_set_hw_state(wireless_rfkill, !state); 1549 else 1550 rfkill_set_sw_state(wireless_rfkill, !state); 1551 } 1552 } 1553 1554 if (has_cap(ACER_CAP_BLUETOOTH)) { 1555 status = get_u32(&state, ACER_CAP_BLUETOOTH); 1556 if (ACPI_SUCCESS(status)) 1557 rfkill_set_sw_state(bluetooth_rfkill, !state); 1558 } 1559 1560 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) { 1561 status = get_u32(&state, ACER_WMID3_GDS_THREEG); 1562 if (ACPI_SUCCESS(status)) 1563 rfkill_set_sw_state(threeg_rfkill, !state); 1564 } 1565 1566 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ)); 1567 } 1568 1569 static int acer_rfkill_set(void *data, bool blocked) 1570 { 1571 acpi_status status; 1572 u32 cap = (unsigned long)data; 1573 1574 if (rfkill_inited) { 1575 status = set_u32(!blocked, cap); 1576 if (ACPI_FAILURE(status)) 1577 return -ENODEV; 1578 } 1579 1580 return 0; 1581 } 1582 1583 static const struct rfkill_ops acer_rfkill_ops = { 1584 .set_block = acer_rfkill_set, 1585 }; 1586 1587 static struct rfkill *acer_rfkill_register(struct device *dev, 1588 enum rfkill_type type, 1589 char *name, u32 cap) 1590 { 1591 int err; 1592 struct rfkill *rfkill_dev; 1593 u32 state; 1594 acpi_status status; 1595 1596 rfkill_dev = rfkill_alloc(name, dev, type, 1597 &acer_rfkill_ops, 1598 (void *)(unsigned long)cap); 1599 if (!rfkill_dev) 1600 return ERR_PTR(-ENOMEM); 1601 1602 status = get_u32(&state, cap); 1603 1604 err = rfkill_register(rfkill_dev); 1605 if (err) { 1606 rfkill_destroy(rfkill_dev); 1607 return ERR_PTR(err); 1608 } 1609 1610 if (ACPI_SUCCESS(status)) 1611 rfkill_set_sw_state(rfkill_dev, !state); 1612 1613 return rfkill_dev; 1614 } 1615 1616 static int acer_rfkill_init(struct device *dev) 1617 { 1618 int err; 1619 1620 if (has_cap(ACER_CAP_WIRELESS)) { 1621 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN, 1622 "acer-wireless", ACER_CAP_WIRELESS); 1623 if (IS_ERR(wireless_rfkill)) { 1624 err = PTR_ERR(wireless_rfkill); 1625 goto error_wireless; 1626 } 1627 } 1628 1629 if (has_cap(ACER_CAP_BLUETOOTH)) { 1630 bluetooth_rfkill = acer_rfkill_register(dev, 1631 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth", 1632 ACER_CAP_BLUETOOTH); 1633 if (IS_ERR(bluetooth_rfkill)) { 1634 err = PTR_ERR(bluetooth_rfkill); 1635 goto error_bluetooth; 1636 } 1637 } 1638 1639 if (has_cap(ACER_CAP_THREEG)) { 1640 threeg_rfkill = acer_rfkill_register(dev, 1641 RFKILL_TYPE_WWAN, "acer-threeg", 1642 ACER_CAP_THREEG); 1643 if (IS_ERR(threeg_rfkill)) { 1644 err = PTR_ERR(threeg_rfkill); 1645 goto error_threeg; 1646 } 1647 } 1648 1649 rfkill_inited = true; 1650 1651 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) && 1652 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG)) 1653 schedule_delayed_work(&acer_rfkill_work, 1654 round_jiffies_relative(HZ)); 1655 1656 return 0; 1657 1658 error_threeg: 1659 if (has_cap(ACER_CAP_BLUETOOTH)) { 1660 rfkill_unregister(bluetooth_rfkill); 1661 rfkill_destroy(bluetooth_rfkill); 1662 } 1663 error_bluetooth: 1664 if (has_cap(ACER_CAP_WIRELESS)) { 1665 rfkill_unregister(wireless_rfkill); 1666 rfkill_destroy(wireless_rfkill); 1667 } 1668 error_wireless: 1669 return err; 1670 } 1671 1672 static void acer_rfkill_exit(void) 1673 { 1674 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) && 1675 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG)) 1676 cancel_delayed_work_sync(&acer_rfkill_work); 1677 1678 if (has_cap(ACER_CAP_WIRELESS)) { 1679 rfkill_unregister(wireless_rfkill); 1680 rfkill_destroy(wireless_rfkill); 1681 } 1682 1683 if (has_cap(ACER_CAP_BLUETOOTH)) { 1684 rfkill_unregister(bluetooth_rfkill); 1685 rfkill_destroy(bluetooth_rfkill); 1686 } 1687 1688 if (has_cap(ACER_CAP_THREEG)) { 1689 rfkill_unregister(threeg_rfkill); 1690 rfkill_destroy(threeg_rfkill); 1691 } 1692 return; 1693 } 1694 1695 static void acer_wmi_notify(u32 value, void *context) 1696 { 1697 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; 1698 union acpi_object *obj; 1699 struct event_return_value return_value; 1700 acpi_status status; 1701 u16 device_state; 1702 const struct key_entry *key; 1703 u32 scancode; 1704 1705 status = wmi_get_event_data(value, &response); 1706 if (status != AE_OK) { 1707 pr_warn("bad event status 0x%x\n", status); 1708 return; 1709 } 1710 1711 obj = (union acpi_object *)response.pointer; 1712 1713 if (!obj) 1714 return; 1715 if (obj->type != ACPI_TYPE_BUFFER) { 1716 pr_warn("Unknown response received %d\n", obj->type); 1717 kfree(obj); 1718 return; 1719 } 1720 if (obj->buffer.length != 8) { 1721 pr_warn("Unknown buffer length %d\n", obj->buffer.length); 1722 kfree(obj); 1723 return; 1724 } 1725 1726 return_value = *((struct event_return_value *)obj->buffer.pointer); 1727 kfree(obj); 1728 1729 switch (return_value.function) { 1730 case WMID_HOTKEY_EVENT: 1731 device_state = return_value.device_state; 1732 pr_debug("device state: 0x%x\n", device_state); 1733 1734 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev, 1735 return_value.key_num); 1736 if (!key) { 1737 pr_warn("Unknown key number - 0x%x\n", 1738 return_value.key_num); 1739 } else { 1740 scancode = return_value.key_num; 1741 switch (key->keycode) { 1742 case KEY_WLAN: 1743 case KEY_BLUETOOTH: 1744 if (has_cap(ACER_CAP_WIRELESS)) 1745 rfkill_set_sw_state(wireless_rfkill, 1746 !(device_state & ACER_WMID3_GDS_WIRELESS)); 1747 if (has_cap(ACER_CAP_THREEG)) 1748 rfkill_set_sw_state(threeg_rfkill, 1749 !(device_state & ACER_WMID3_GDS_THREEG)); 1750 if (has_cap(ACER_CAP_BLUETOOTH)) 1751 rfkill_set_sw_state(bluetooth_rfkill, 1752 !(device_state & ACER_WMID3_GDS_BLUETOOTH)); 1753 break; 1754 case KEY_TOUCHPAD_TOGGLE: 1755 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ? 1756 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF; 1757 } 1758 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true); 1759 } 1760 break; 1761 case WMID_ACCEL_EVENT: 1762 acer_gsensor_event(); 1763 break; 1764 default: 1765 pr_warn("Unknown function number - %d - %d\n", 1766 return_value.function, return_value.key_num); 1767 break; 1768 } 1769 } 1770 1771 static acpi_status __init 1772 wmid3_set_lm_mode(struct lm_input_params *params, 1773 struct lm_return_value *return_value) 1774 { 1775 acpi_status status; 1776 union acpi_object *obj; 1777 1778 struct acpi_buffer input = { sizeof(struct lm_input_params), params }; 1779 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; 1780 1781 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output); 1782 if (ACPI_FAILURE(status)) 1783 return status; 1784 1785 obj = output.pointer; 1786 1787 if (!obj) 1788 return AE_ERROR; 1789 else if (obj->type != ACPI_TYPE_BUFFER) { 1790 kfree(obj); 1791 return AE_ERROR; 1792 } 1793 if (obj->buffer.length != 4) { 1794 pr_warn("Unknown buffer length %d\n", obj->buffer.length); 1795 kfree(obj); 1796 return AE_ERROR; 1797 } 1798 1799 *return_value = *((struct lm_return_value *)obj->buffer.pointer); 1800 kfree(obj); 1801 1802 return status; 1803 } 1804 1805 static int __init acer_wmi_enable_ec_raw(void) 1806 { 1807 struct lm_return_value return_value; 1808 acpi_status status; 1809 struct lm_input_params params = { 1810 .function_num = 0x1, 1811 .commun_devices = 0xFFFF, 1812 .devices = 0xFFFF, 1813 .lm_status = 0x00, /* Launch Manager Deactive */ 1814 }; 1815 1816 status = wmid3_set_lm_mode(¶ms, &return_value); 1817 1818 if (return_value.error_code || return_value.ec_return_value) 1819 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n", 1820 return_value.error_code, 1821 return_value.ec_return_value); 1822 else 1823 pr_info("Enabled EC raw mode\n"); 1824 1825 return status; 1826 } 1827 1828 static int __init acer_wmi_enable_lm(void) 1829 { 1830 struct lm_return_value return_value; 1831 acpi_status status; 1832 struct lm_input_params params = { 1833 .function_num = 0x1, 1834 .commun_devices = 0xFFFF, 1835 .devices = 0xFFFF, 1836 .lm_status = 0x01, /* Launch Manager Active */ 1837 }; 1838 1839 status = wmid3_set_lm_mode(¶ms, &return_value); 1840 1841 if (return_value.error_code || return_value.ec_return_value) 1842 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n", 1843 return_value.error_code, 1844 return_value.ec_return_value); 1845 1846 return status; 1847 } 1848 1849 static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level, 1850 void *ctx, void **retval) 1851 { 1852 *(acpi_handle *)retval = ah; 1853 return AE_OK; 1854 } 1855 1856 static int __init acer_wmi_get_handle(const char *name, const char *prop, 1857 acpi_handle *ah) 1858 { 1859 acpi_status status; 1860 acpi_handle handle; 1861 1862 BUG_ON(!name || !ah); 1863 1864 handle = NULL; 1865 status = acpi_get_devices(prop, acer_wmi_get_handle_cb, 1866 (void *)name, &handle); 1867 1868 if (ACPI_SUCCESS(status)) { 1869 *ah = handle; 1870 return 0; 1871 } else { 1872 return -ENODEV; 1873 } 1874 } 1875 1876 static int __init acer_wmi_accel_setup(void) 1877 { 1878 int err; 1879 1880 err = acer_wmi_get_handle("SENR", "BST0001", &gsensor_handle); 1881 if (err) 1882 return err; 1883 1884 interface->capability |= ACER_CAP_ACCEL; 1885 1886 acer_wmi_accel_dev = input_allocate_device(); 1887 if (!acer_wmi_accel_dev) 1888 return -ENOMEM; 1889 1890 acer_wmi_accel_dev->open = acer_gsensor_open; 1891 1892 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer"; 1893 acer_wmi_accel_dev->phys = "wmi/input1"; 1894 acer_wmi_accel_dev->id.bustype = BUS_HOST; 1895 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS); 1896 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0); 1897 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0); 1898 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0); 1899 1900 err = input_register_device(acer_wmi_accel_dev); 1901 if (err) 1902 goto err_free_dev; 1903 1904 return 0; 1905 1906 err_free_dev: 1907 input_free_device(acer_wmi_accel_dev); 1908 return err; 1909 } 1910 1911 static void acer_wmi_accel_destroy(void) 1912 { 1913 input_unregister_device(acer_wmi_accel_dev); 1914 } 1915 1916 static int __init acer_wmi_input_setup(void) 1917 { 1918 acpi_status status; 1919 int err; 1920 1921 acer_wmi_input_dev = input_allocate_device(); 1922 if (!acer_wmi_input_dev) 1923 return -ENOMEM; 1924 1925 acer_wmi_input_dev->name = "Acer WMI hotkeys"; 1926 acer_wmi_input_dev->phys = "wmi/input0"; 1927 acer_wmi_input_dev->id.bustype = BUS_HOST; 1928 1929 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL); 1930 if (err) 1931 goto err_free_dev; 1932 1933 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID, 1934 acer_wmi_notify, NULL); 1935 if (ACPI_FAILURE(status)) { 1936 err = -EIO; 1937 goto err_free_keymap; 1938 } 1939 1940 err = input_register_device(acer_wmi_input_dev); 1941 if (err) 1942 goto err_uninstall_notifier; 1943 1944 return 0; 1945 1946 err_uninstall_notifier: 1947 wmi_remove_notify_handler(ACERWMID_EVENT_GUID); 1948 err_free_keymap: 1949 sparse_keymap_free(acer_wmi_input_dev); 1950 err_free_dev: 1951 input_free_device(acer_wmi_input_dev); 1952 return err; 1953 } 1954 1955 static void acer_wmi_input_destroy(void) 1956 { 1957 wmi_remove_notify_handler(ACERWMID_EVENT_GUID); 1958 sparse_keymap_free(acer_wmi_input_dev); 1959 input_unregister_device(acer_wmi_input_dev); 1960 } 1961 1962 /* 1963 * debugfs functions 1964 */ 1965 static u32 get_wmid_devices(void) 1966 { 1967 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL}; 1968 union acpi_object *obj; 1969 acpi_status status; 1970 u32 devices = 0; 1971 1972 status = wmi_query_block(WMID_GUID2, 1, &out); 1973 if (ACPI_FAILURE(status)) 1974 return 0; 1975 1976 obj = (union acpi_object *) out.pointer; 1977 if (obj) { 1978 if (obj->type == ACPI_TYPE_BUFFER && 1979 (obj->buffer.length == sizeof(u32) || 1980 obj->buffer.length == sizeof(u64))) { 1981 devices = *((u32 *) obj->buffer.pointer); 1982 } else if (obj->type == ACPI_TYPE_INTEGER) { 1983 devices = (u32) obj->integer.value; 1984 } 1985 } 1986 1987 kfree(out.pointer); 1988 return devices; 1989 } 1990 1991 /* 1992 * Platform device 1993 */ 1994 static int acer_platform_probe(struct platform_device *device) 1995 { 1996 int err; 1997 1998 if (has_cap(ACER_CAP_MAILLED)) { 1999 err = acer_led_init(&device->dev); 2000 if (err) 2001 goto error_mailled; 2002 } 2003 2004 if (has_cap(ACER_CAP_BRIGHTNESS)) { 2005 err = acer_backlight_init(&device->dev); 2006 if (err) 2007 goto error_brightness; 2008 } 2009 2010 err = acer_rfkill_init(&device->dev); 2011 if (err) 2012 goto error_rfkill; 2013 2014 return err; 2015 2016 error_rfkill: 2017 if (has_cap(ACER_CAP_BRIGHTNESS)) 2018 acer_backlight_exit(); 2019 error_brightness: 2020 if (has_cap(ACER_CAP_MAILLED)) 2021 acer_led_exit(); 2022 error_mailled: 2023 return err; 2024 } 2025 2026 static int acer_platform_remove(struct platform_device *device) 2027 { 2028 if (has_cap(ACER_CAP_MAILLED)) 2029 acer_led_exit(); 2030 if (has_cap(ACER_CAP_BRIGHTNESS)) 2031 acer_backlight_exit(); 2032 2033 acer_rfkill_exit(); 2034 return 0; 2035 } 2036 2037 #ifdef CONFIG_PM_SLEEP 2038 static int acer_suspend(struct device *dev) 2039 { 2040 u32 value; 2041 struct acer_data *data = &interface->data; 2042 2043 if (!data) 2044 return -ENOMEM; 2045 2046 if (has_cap(ACER_CAP_MAILLED)) { 2047 get_u32(&value, ACER_CAP_MAILLED); 2048 set_u32(LED_OFF, ACER_CAP_MAILLED); 2049 data->mailled = value; 2050 } 2051 2052 if (has_cap(ACER_CAP_BRIGHTNESS)) { 2053 get_u32(&value, ACER_CAP_BRIGHTNESS); 2054 data->brightness = value; 2055 } 2056 2057 return 0; 2058 } 2059 2060 static int acer_resume(struct device *dev) 2061 { 2062 struct acer_data *data = &interface->data; 2063 2064 if (!data) 2065 return -ENOMEM; 2066 2067 if (has_cap(ACER_CAP_MAILLED)) 2068 set_u32(data->mailled, ACER_CAP_MAILLED); 2069 2070 if (has_cap(ACER_CAP_BRIGHTNESS)) 2071 set_u32(data->brightness, ACER_CAP_BRIGHTNESS); 2072 2073 if (has_cap(ACER_CAP_ACCEL)) 2074 acer_gsensor_init(); 2075 2076 return 0; 2077 } 2078 #else 2079 #define acer_suspend NULL 2080 #define acer_resume NULL 2081 #endif 2082 2083 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume); 2084 2085 static void acer_platform_shutdown(struct platform_device *device) 2086 { 2087 struct acer_data *data = &interface->data; 2088 2089 if (!data) 2090 return; 2091 2092 if (has_cap(ACER_CAP_MAILLED)) 2093 set_u32(LED_OFF, ACER_CAP_MAILLED); 2094 } 2095 2096 static struct platform_driver acer_platform_driver = { 2097 .driver = { 2098 .name = "acer-wmi", 2099 .pm = &acer_pm, 2100 }, 2101 .probe = acer_platform_probe, 2102 .remove = acer_platform_remove, 2103 .shutdown = acer_platform_shutdown, 2104 }; 2105 2106 static struct platform_device *acer_platform_device; 2107 2108 static void remove_debugfs(void) 2109 { 2110 debugfs_remove(interface->debug.devices); 2111 debugfs_remove(interface->debug.root); 2112 } 2113 2114 static int __init create_debugfs(void) 2115 { 2116 interface->debug.root = debugfs_create_dir("acer-wmi", NULL); 2117 if (!interface->debug.root) { 2118 pr_err("Failed to create debugfs directory"); 2119 return -ENOMEM; 2120 } 2121 2122 interface->debug.devices = debugfs_create_u32("devices", S_IRUGO, 2123 interface->debug.root, 2124 &interface->debug.wmid_devices); 2125 if (!interface->debug.devices) 2126 goto error_debugfs; 2127 2128 return 0; 2129 2130 error_debugfs: 2131 remove_debugfs(); 2132 return -ENOMEM; 2133 } 2134 2135 static int __init acer_wmi_init(void) 2136 { 2137 int err; 2138 2139 pr_info("Acer Laptop ACPI-WMI Extras\n"); 2140 2141 if (dmi_check_system(acer_blacklist)) { 2142 pr_info("Blacklisted hardware detected - not loading\n"); 2143 return -ENODEV; 2144 } 2145 2146 find_quirks(); 2147 2148 /* 2149 * The AMW0_GUID1 wmi is not only found on Acer family but also other 2150 * machines like Lenovo, Fujitsu and Medion. In the past days, 2151 * acer-wmi driver handled those non-Acer machines by quirks list. 2152 * But actually acer-wmi driver was loaded on any machines that have 2153 * AMW0_GUID1. This behavior is strange because those machines should 2154 * be supported by appropriate wmi drivers. e.g. fujitsu-laptop, 2155 * ideapad-laptop. So, here checks the machine that has AMW0_GUID1 2156 * should be in Acer/Gateway/Packard Bell white list, or it's already 2157 * in the past quirk list. 2158 */ 2159 if (wmi_has_guid(AMW0_GUID1) && 2160 !dmi_check_system(amw0_whitelist) && 2161 quirks == &quirk_unknown) { 2162 pr_err("Unsupported machine has AMW0_GUID1, unable to load\n"); 2163 return -ENODEV; 2164 } 2165 2166 /* 2167 * Detect which ACPI-WMI interface we're using. 2168 */ 2169 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1)) 2170 interface = &AMW0_V2_interface; 2171 2172 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1)) 2173 interface = &wmid_interface; 2174 2175 if (wmi_has_guid(WMID_GUID3)) 2176 interface = &wmid_v2_interface; 2177 2178 if (interface) 2179 dmi_walk(type_aa_dmi_decode, NULL); 2180 2181 if (wmi_has_guid(WMID_GUID2) && interface) { 2182 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) { 2183 pr_err("Unable to detect available WMID devices\n"); 2184 return -ENODEV; 2185 } 2186 /* WMID always provides brightness methods */ 2187 interface->capability |= ACER_CAP_BRIGHTNESS; 2188 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) { 2189 pr_err("No WMID device detection method found\n"); 2190 return -ENODEV; 2191 } 2192 2193 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) { 2194 interface = &AMW0_interface; 2195 2196 if (ACPI_FAILURE(AMW0_set_capabilities())) { 2197 pr_err("Unable to detect available AMW0 devices\n"); 2198 return -ENODEV; 2199 } 2200 } 2201 2202 if (wmi_has_guid(AMW0_GUID1)) 2203 AMW0_find_mailled(); 2204 2205 if (!interface) { 2206 pr_err("No or unsupported WMI interface, unable to load\n"); 2207 return -ENODEV; 2208 } 2209 2210 set_quirks(); 2211 2212 if (dmi_check_system(video_vendor_dmi_table)) 2213 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor); 2214 2215 if (acpi_video_get_backlight_type() != acpi_backlight_vendor) 2216 interface->capability &= ~ACER_CAP_BRIGHTNESS; 2217 2218 if (wmi_has_guid(WMID_GUID3)) { 2219 if (ec_raw_mode) { 2220 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) { 2221 pr_err("Cannot enable EC raw mode\n"); 2222 return -ENODEV; 2223 } 2224 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) { 2225 pr_err("Cannot enable Launch Manager mode\n"); 2226 return -ENODEV; 2227 } 2228 } else if (ec_raw_mode) { 2229 pr_info("No WMID EC raw mode enable method\n"); 2230 } 2231 2232 if (wmi_has_guid(ACERWMID_EVENT_GUID)) { 2233 err = acer_wmi_input_setup(); 2234 if (err) 2235 return err; 2236 } 2237 2238 acer_wmi_accel_setup(); 2239 2240 err = platform_driver_register(&acer_platform_driver); 2241 if (err) { 2242 pr_err("Unable to register platform driver\n"); 2243 goto error_platform_register; 2244 } 2245 2246 acer_platform_device = platform_device_alloc("acer-wmi", -1); 2247 if (!acer_platform_device) { 2248 err = -ENOMEM; 2249 goto error_device_alloc; 2250 } 2251 2252 err = platform_device_add(acer_platform_device); 2253 if (err) 2254 goto error_device_add; 2255 2256 if (wmi_has_guid(WMID_GUID2)) { 2257 interface->debug.wmid_devices = get_wmid_devices(); 2258 err = create_debugfs(); 2259 if (err) 2260 goto error_create_debugfs; 2261 } 2262 2263 /* Override any initial settings with values from the commandline */ 2264 acer_commandline_init(); 2265 2266 return 0; 2267 2268 error_create_debugfs: 2269 platform_device_del(acer_platform_device); 2270 error_device_add: 2271 platform_device_put(acer_platform_device); 2272 error_device_alloc: 2273 platform_driver_unregister(&acer_platform_driver); 2274 error_platform_register: 2275 if (wmi_has_guid(ACERWMID_EVENT_GUID)) 2276 acer_wmi_input_destroy(); 2277 if (has_cap(ACER_CAP_ACCEL)) 2278 acer_wmi_accel_destroy(); 2279 2280 return err; 2281 } 2282 2283 static void __exit acer_wmi_exit(void) 2284 { 2285 if (wmi_has_guid(ACERWMID_EVENT_GUID)) 2286 acer_wmi_input_destroy(); 2287 2288 if (has_cap(ACER_CAP_ACCEL)) 2289 acer_wmi_accel_destroy(); 2290 2291 remove_debugfs(); 2292 platform_device_unregister(acer_platform_device); 2293 platform_driver_unregister(&acer_platform_driver); 2294 2295 pr_info("Acer Laptop WMI Extras unloaded\n"); 2296 return; 2297 } 2298 2299 module_init(acer_wmi_init); 2300 module_exit(acer_wmi_exit); 2301