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 45 #include <acpi/acpi_drivers.h> 46 #include <acpi/video.h> 47 48 MODULE_AUTHOR("Carlos Corbacho"); 49 MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver"); 50 MODULE_LICENSE("GPL"); 51 52 /* 53 * Magic Number 54 * Meaning is unknown - this number is required for writing to ACPI for AMW0 55 * (it's also used in acerhk when directly accessing the BIOS) 56 */ 57 #define ACER_AMW0_WRITE 0x9610 58 59 /* 60 * Bit masks for the AMW0 interface 61 */ 62 #define ACER_AMW0_WIRELESS_MASK 0x35 63 #define ACER_AMW0_BLUETOOTH_MASK 0x34 64 #define ACER_AMW0_MAILLED_MASK 0x31 65 66 /* 67 * Method IDs for WMID interface 68 */ 69 #define ACER_WMID_GET_WIRELESS_METHODID 1 70 #define ACER_WMID_GET_BLUETOOTH_METHODID 2 71 #define ACER_WMID_GET_BRIGHTNESS_METHODID 3 72 #define ACER_WMID_SET_WIRELESS_METHODID 4 73 #define ACER_WMID_SET_BLUETOOTH_METHODID 5 74 #define ACER_WMID_SET_BRIGHTNESS_METHODID 6 75 #define ACER_WMID_GET_THREEG_METHODID 10 76 #define ACER_WMID_SET_THREEG_METHODID 11 77 78 /* 79 * Acer ACPI method GUIDs 80 */ 81 #define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB" 82 #define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C" 83 #define WMID_GUID1 "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3" 84 #define WMID_GUID2 "95764E09-FB56-4E83-B31A-37761F60994A" 85 #define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531" 86 87 /* 88 * Acer ACPI event GUIDs 89 */ 90 #define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026" 91 92 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB"); 93 MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"); 94 MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026"); 95 96 enum acer_wmi_event_ids { 97 WMID_HOTKEY_EVENT = 0x1, 98 WMID_ACCEL_EVENT = 0x5, 99 }; 100 101 static const struct key_entry acer_wmi_keymap[] = { 102 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */ 103 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */ 104 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */ 105 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */ 106 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */ 107 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */ 108 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */ 109 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */ 110 {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */ 111 {KE_IGNORE, 0x41, {KEY_MUTE} }, 112 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} }, 113 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} }, 114 {KE_IGNORE, 0x43, {KEY_NEXTSONG} }, 115 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} }, 116 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} }, 117 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} }, 118 {KE_IGNORE, 0x45, {KEY_STOP} }, 119 {KE_IGNORE, 0x50, {KEY_STOP} }, 120 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} }, 121 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} }, 122 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} }, 123 {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} }, 124 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} }, 125 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} }, 126 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */ 127 {KE_IGNORE, 0x81, {KEY_SLEEP} }, 128 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */ 129 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} }, 130 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} }, 131 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} }, 132 {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} }, 133 {KE_END, 0} 134 }; 135 136 static struct input_dev *acer_wmi_input_dev; 137 static struct input_dev *acer_wmi_accel_dev; 138 139 struct event_return_value { 140 u8 function; 141 u8 key_num; 142 u16 device_state; 143 u32 reserved; 144 } __attribute__((packed)); 145 146 /* 147 * GUID3 Get Device Status device flags 148 */ 149 #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */ 150 #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */ 151 #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */ 152 #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */ 153 #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */ 154 155 struct lm_input_params { 156 u8 function_num; /* Function Number */ 157 u16 commun_devices; /* Communication type devices default status */ 158 u16 devices; /* Other type devices default status */ 159 u8 lm_status; /* Launch Manager Status */ 160 u16 reserved; 161 } __attribute__((packed)); 162 163 struct lm_return_value { 164 u8 error_code; /* Error Code */ 165 u8 ec_return_value; /* EC Return Value */ 166 u16 reserved; 167 } __attribute__((packed)); 168 169 struct wmid3_gds_set_input_param { /* Set Device Status input parameter */ 170 u8 function_num; /* Function Number */ 171 u8 hotkey_number; /* Hotkey Number */ 172 u16 devices; /* Set Device */ 173 u8 volume_value; /* Volume Value */ 174 } __attribute__((packed)); 175 176 struct wmid3_gds_get_input_param { /* Get Device Status input parameter */ 177 u8 function_num; /* Function Number */ 178 u8 hotkey_number; /* Hotkey Number */ 179 u16 devices; /* Get Device */ 180 } __attribute__((packed)); 181 182 struct wmid3_gds_return_value { /* Get Device Status return value*/ 183 u8 error_code; /* Error Code */ 184 u8 ec_return_value; /* EC Return Value */ 185 u16 devices; /* Current Device Status */ 186 u32 reserved; 187 } __attribute__((packed)); 188 189 struct hotkey_function_type_aa { 190 u8 type; 191 u8 length; 192 u16 handle; 193 u16 commun_func_bitmap; 194 u16 application_func_bitmap; 195 u16 media_func_bitmap; 196 u16 display_func_bitmap; 197 u16 others_func_bitmap; 198 u8 commun_fn_key_number; 199 } __attribute__((packed)); 200 201 /* 202 * Interface capability flags 203 */ 204 #define ACER_CAP_MAILLED (1<<0) 205 #define ACER_CAP_WIRELESS (1<<1) 206 #define ACER_CAP_BLUETOOTH (1<<2) 207 #define ACER_CAP_BRIGHTNESS (1<<3) 208 #define ACER_CAP_THREEG (1<<4) 209 #define ACER_CAP_ACCEL (1<<5) 210 #define ACER_CAP_ANY (0xFFFFFFFF) 211 212 /* 213 * Interface type flags 214 */ 215 enum interface_flags { 216 ACER_AMW0, 217 ACER_AMW0_V2, 218 ACER_WMID, 219 ACER_WMID_v2, 220 }; 221 222 #define ACER_DEFAULT_WIRELESS 0 223 #define ACER_DEFAULT_BLUETOOTH 0 224 #define ACER_DEFAULT_MAILLED 0 225 #define ACER_DEFAULT_THREEG 0 226 227 static int max_brightness = 0xF; 228 229 static int mailled = -1; 230 static int brightness = -1; 231 static int threeg = -1; 232 static int force_series; 233 static bool ec_raw_mode; 234 static bool has_type_aa; 235 static u16 commun_func_bitmap; 236 static u8 commun_fn_key_number; 237 238 module_param(mailled, int, 0444); 239 module_param(brightness, int, 0444); 240 module_param(threeg, int, 0444); 241 module_param(force_series, int, 0444); 242 module_param(ec_raw_mode, bool, 0444); 243 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED"); 244 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness"); 245 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware"); 246 MODULE_PARM_DESC(force_series, "Force a different laptop series"); 247 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode"); 248 249 struct acer_data { 250 int mailled; 251 int threeg; 252 int brightness; 253 }; 254 255 struct acer_debug { 256 struct dentry *root; 257 struct dentry *devices; 258 u32 wmid_devices; 259 }; 260 261 static struct rfkill *wireless_rfkill; 262 static struct rfkill *bluetooth_rfkill; 263 static struct rfkill *threeg_rfkill; 264 static bool rfkill_inited; 265 266 /* Each low-level interface must define at least some of the following */ 267 struct wmi_interface { 268 /* The WMI device type */ 269 u32 type; 270 271 /* The capabilities this interface provides */ 272 u32 capability; 273 274 /* Private data for the current interface */ 275 struct acer_data data; 276 277 /* debugfs entries associated with this interface */ 278 struct acer_debug debug; 279 }; 280 281 /* The static interface pointer, points to the currently detected interface */ 282 static struct wmi_interface *interface; 283 284 /* 285 * Embedded Controller quirks 286 * Some laptops require us to directly access the EC to either enable or query 287 * features that are not available through WMI. 288 */ 289 290 struct quirk_entry { 291 u8 wireless; 292 u8 mailled; 293 s8 brightness; 294 u8 bluetooth; 295 }; 296 297 static struct quirk_entry *quirks; 298 299 static void set_quirks(void) 300 { 301 if (!interface) 302 return; 303 304 if (quirks->mailled) 305 interface->capability |= ACER_CAP_MAILLED; 306 307 if (quirks->brightness) 308 interface->capability |= ACER_CAP_BRIGHTNESS; 309 } 310 311 static int dmi_matched(const struct dmi_system_id *dmi) 312 { 313 quirks = dmi->driver_data; 314 return 1; 315 } 316 317 static struct quirk_entry quirk_unknown = { 318 }; 319 320 static struct quirk_entry quirk_acer_aspire_1520 = { 321 .brightness = -1, 322 }; 323 324 static struct quirk_entry quirk_acer_travelmate_2490 = { 325 .mailled = 1, 326 }; 327 328 /* This AMW0 laptop has no bluetooth */ 329 static struct quirk_entry quirk_medion_md_98300 = { 330 .wireless = 1, 331 }; 332 333 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = { 334 .wireless = 2, 335 }; 336 337 static struct quirk_entry quirk_lenovo_ideapad_s205 = { 338 .wireless = 3, 339 }; 340 341 /* The Aspire One has a dummy ACPI-WMI interface - disable it */ 342 static struct dmi_system_id acer_blacklist[] = { 343 { 344 .ident = "Acer Aspire One (SSD)", 345 .matches = { 346 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 347 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"), 348 }, 349 }, 350 { 351 .ident = "Acer Aspire One (HDD)", 352 .matches = { 353 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 354 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"), 355 }, 356 }, 357 {} 358 }; 359 360 static struct dmi_system_id acer_quirks[] = { 361 { 362 .callback = dmi_matched, 363 .ident = "Acer Aspire 1360", 364 .matches = { 365 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 366 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"), 367 }, 368 .driver_data = &quirk_acer_aspire_1520, 369 }, 370 { 371 .callback = dmi_matched, 372 .ident = "Acer Aspire 1520", 373 .matches = { 374 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 375 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"), 376 }, 377 .driver_data = &quirk_acer_aspire_1520, 378 }, 379 { 380 .callback = dmi_matched, 381 .ident = "Acer Aspire 3100", 382 .matches = { 383 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 384 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"), 385 }, 386 .driver_data = &quirk_acer_travelmate_2490, 387 }, 388 { 389 .callback = dmi_matched, 390 .ident = "Acer Aspire 3610", 391 .matches = { 392 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 393 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"), 394 }, 395 .driver_data = &quirk_acer_travelmate_2490, 396 }, 397 { 398 .callback = dmi_matched, 399 .ident = "Acer Aspire 5100", 400 .matches = { 401 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 402 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"), 403 }, 404 .driver_data = &quirk_acer_travelmate_2490, 405 }, 406 { 407 .callback = dmi_matched, 408 .ident = "Acer Aspire 5610", 409 .matches = { 410 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 411 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"), 412 }, 413 .driver_data = &quirk_acer_travelmate_2490, 414 }, 415 { 416 .callback = dmi_matched, 417 .ident = "Acer Aspire 5630", 418 .matches = { 419 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 420 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"), 421 }, 422 .driver_data = &quirk_acer_travelmate_2490, 423 }, 424 { 425 .callback = dmi_matched, 426 .ident = "Acer Aspire 5650", 427 .matches = { 428 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 429 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"), 430 }, 431 .driver_data = &quirk_acer_travelmate_2490, 432 }, 433 { 434 .callback = dmi_matched, 435 .ident = "Acer Aspire 5680", 436 .matches = { 437 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 438 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"), 439 }, 440 .driver_data = &quirk_acer_travelmate_2490, 441 }, 442 { 443 .callback = dmi_matched, 444 .ident = "Acer Aspire 9110", 445 .matches = { 446 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 447 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"), 448 }, 449 .driver_data = &quirk_acer_travelmate_2490, 450 }, 451 { 452 .callback = dmi_matched, 453 .ident = "Acer TravelMate 2490", 454 .matches = { 455 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 456 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"), 457 }, 458 .driver_data = &quirk_acer_travelmate_2490, 459 }, 460 { 461 .callback = dmi_matched, 462 .ident = "Acer TravelMate 4200", 463 .matches = { 464 DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 465 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"), 466 }, 467 .driver_data = &quirk_acer_travelmate_2490, 468 }, 469 { 470 .callback = dmi_matched, 471 .ident = "Fujitsu Siemens Amilo Li 1718", 472 .matches = { 473 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 474 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"), 475 }, 476 .driver_data = &quirk_fujitsu_amilo_li_1718, 477 }, 478 { 479 .callback = dmi_matched, 480 .ident = "Medion MD 98300", 481 .matches = { 482 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"), 483 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"), 484 }, 485 .driver_data = &quirk_medion_md_98300, 486 }, 487 { 488 .callback = dmi_matched, 489 .ident = "Lenovo Ideapad S205", 490 .matches = { 491 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 492 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"), 493 }, 494 .driver_data = &quirk_lenovo_ideapad_s205, 495 }, 496 { 497 .callback = dmi_matched, 498 .ident = "Lenovo Ideapad S205 (Brazos)", 499 .matches = { 500 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 501 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"), 502 }, 503 .driver_data = &quirk_lenovo_ideapad_s205, 504 }, 505 { 506 .callback = dmi_matched, 507 .ident = "Lenovo 3000 N200", 508 .matches = { 509 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 510 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"), 511 }, 512 .driver_data = &quirk_fujitsu_amilo_li_1718, 513 }, 514 { 515 .callback = dmi_matched, 516 .ident = "Lenovo Ideapad S205-10382JG", 517 .matches = { 518 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 519 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"), 520 }, 521 .driver_data = &quirk_lenovo_ideapad_s205, 522 }, 523 { 524 .callback = dmi_matched, 525 .ident = "Lenovo Ideapad S205-1038DPG", 526 .matches = { 527 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 528 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"), 529 }, 530 .driver_data = &quirk_lenovo_ideapad_s205, 531 }, 532 {} 533 }; 534 535 static int video_set_backlight_video_vendor(const struct dmi_system_id *d) 536 { 537 interface->capability &= ~ACER_CAP_BRIGHTNESS; 538 pr_info("Brightness must be controlled by generic video driver\n"); 539 return 0; 540 } 541 542 static const struct dmi_system_id video_vendor_dmi_table[] = { 543 { 544 .callback = video_set_backlight_video_vendor, 545 .ident = "Acer TravelMate 4750", 546 .matches = { 547 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), 548 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"), 549 }, 550 }, 551 { 552 .callback = video_set_backlight_video_vendor, 553 .ident = "Acer Extensa 5235", 554 .matches = { 555 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), 556 DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"), 557 }, 558 }, 559 { 560 .callback = video_set_backlight_video_vendor, 561 .ident = "Acer TravelMate 5760", 562 .matches = { 563 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), 564 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"), 565 }, 566 }, 567 { 568 .callback = video_set_backlight_video_vendor, 569 .ident = "Acer Aspire 5750", 570 .matches = { 571 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), 572 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"), 573 }, 574 }, 575 {} 576 }; 577 578 /* Find which quirks are needed for a particular vendor/ model pair */ 579 static void find_quirks(void) 580 { 581 if (!force_series) { 582 dmi_check_system(acer_quirks); 583 } else if (force_series == 2490) { 584 quirks = &quirk_acer_travelmate_2490; 585 } 586 587 if (quirks == NULL) 588 quirks = &quirk_unknown; 589 590 set_quirks(); 591 } 592 593 /* 594 * General interface convenience methods 595 */ 596 597 static bool has_cap(u32 cap) 598 { 599 if ((interface->capability & cap) != 0) 600 return 1; 601 602 return 0; 603 } 604 605 /* 606 * AMW0 (V1) interface 607 */ 608 struct wmab_args { 609 u32 eax; 610 u32 ebx; 611 u32 ecx; 612 u32 edx; 613 }; 614 615 struct wmab_ret { 616 u32 eax; 617 u32 ebx; 618 u32 ecx; 619 u32 edx; 620 u32 eex; 621 }; 622 623 static acpi_status wmab_execute(struct wmab_args *regbuf, 624 struct acpi_buffer *result) 625 { 626 struct acpi_buffer input; 627 acpi_status status; 628 input.length = sizeof(struct wmab_args); 629 input.pointer = (u8 *)regbuf; 630 631 status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result); 632 633 return status; 634 } 635 636 static acpi_status AMW0_get_u32(u32 *value, u32 cap) 637 { 638 int err; 639 u8 result; 640 641 switch (cap) { 642 case ACER_CAP_MAILLED: 643 switch (quirks->mailled) { 644 default: 645 err = ec_read(0xA, &result); 646 if (err) 647 return AE_ERROR; 648 *value = (result >> 7) & 0x1; 649 return AE_OK; 650 } 651 break; 652 case ACER_CAP_WIRELESS: 653 switch (quirks->wireless) { 654 case 1: 655 err = ec_read(0x7B, &result); 656 if (err) 657 return AE_ERROR; 658 *value = result & 0x1; 659 return AE_OK; 660 case 2: 661 err = ec_read(0x71, &result); 662 if (err) 663 return AE_ERROR; 664 *value = result & 0x1; 665 return AE_OK; 666 case 3: 667 err = ec_read(0x78, &result); 668 if (err) 669 return AE_ERROR; 670 *value = result & 0x1; 671 return AE_OK; 672 default: 673 err = ec_read(0xA, &result); 674 if (err) 675 return AE_ERROR; 676 *value = (result >> 2) & 0x1; 677 return AE_OK; 678 } 679 break; 680 case ACER_CAP_BLUETOOTH: 681 switch (quirks->bluetooth) { 682 default: 683 err = ec_read(0xA, &result); 684 if (err) 685 return AE_ERROR; 686 *value = (result >> 4) & 0x1; 687 return AE_OK; 688 } 689 break; 690 case ACER_CAP_BRIGHTNESS: 691 switch (quirks->brightness) { 692 default: 693 err = ec_read(0x83, &result); 694 if (err) 695 return AE_ERROR; 696 *value = result; 697 return AE_OK; 698 } 699 break; 700 default: 701 return AE_ERROR; 702 } 703 return AE_OK; 704 } 705 706 static acpi_status AMW0_set_u32(u32 value, u32 cap) 707 { 708 struct wmab_args args; 709 710 args.eax = ACER_AMW0_WRITE; 711 args.ebx = value ? (1<<8) : 0; 712 args.ecx = args.edx = 0; 713 714 switch (cap) { 715 case ACER_CAP_MAILLED: 716 if (value > 1) 717 return AE_BAD_PARAMETER; 718 args.ebx |= ACER_AMW0_MAILLED_MASK; 719 break; 720 case ACER_CAP_WIRELESS: 721 if (value > 1) 722 return AE_BAD_PARAMETER; 723 args.ebx |= ACER_AMW0_WIRELESS_MASK; 724 break; 725 case ACER_CAP_BLUETOOTH: 726 if (value > 1) 727 return AE_BAD_PARAMETER; 728 args.ebx |= ACER_AMW0_BLUETOOTH_MASK; 729 break; 730 case ACER_CAP_BRIGHTNESS: 731 if (value > max_brightness) 732 return AE_BAD_PARAMETER; 733 switch (quirks->brightness) { 734 default: 735 return ec_write(0x83, value); 736 break; 737 } 738 default: 739 return AE_ERROR; 740 } 741 742 /* Actually do the set */ 743 return wmab_execute(&args, NULL); 744 } 745 746 static acpi_status AMW0_find_mailled(void) 747 { 748 struct wmab_args args; 749 struct wmab_ret ret; 750 acpi_status status = AE_OK; 751 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL }; 752 union acpi_object *obj; 753 754 args.eax = 0x86; 755 args.ebx = args.ecx = args.edx = 0; 756 757 status = wmab_execute(&args, &out); 758 if (ACPI_FAILURE(status)) 759 return status; 760 761 obj = (union acpi_object *) out.pointer; 762 if (obj && obj->type == ACPI_TYPE_BUFFER && 763 obj->buffer.length == sizeof(struct wmab_ret)) { 764 ret = *((struct wmab_ret *) obj->buffer.pointer); 765 } else { 766 kfree(out.pointer); 767 return AE_ERROR; 768 } 769 770 if (ret.eex & 0x1) 771 interface->capability |= ACER_CAP_MAILLED; 772 773 kfree(out.pointer); 774 775 return AE_OK; 776 } 777 778 static int AMW0_set_cap_acpi_check_device_found; 779 780 static acpi_status AMW0_set_cap_acpi_check_device_cb(acpi_handle handle, 781 u32 level, void *context, void **retval) 782 { 783 AMW0_set_cap_acpi_check_device_found = 1; 784 return AE_OK; 785 } 786 787 static const struct acpi_device_id norfkill_ids[] = { 788 { "VPC2004", 0}, 789 { "IBM0068", 0}, 790 { "LEN0068", 0}, 791 { "SNY5001", 0}, /* sony-laptop in charge */ 792 { "", 0}, 793 }; 794 795 static int AMW0_set_cap_acpi_check_device(void) 796 { 797 const struct acpi_device_id *id; 798 799 for (id = norfkill_ids; id->id[0]; id++) 800 acpi_get_devices(id->id, AMW0_set_cap_acpi_check_device_cb, 801 NULL, NULL); 802 return AMW0_set_cap_acpi_check_device_found; 803 } 804 805 static acpi_status AMW0_set_capabilities(void) 806 { 807 struct wmab_args args; 808 struct wmab_ret ret; 809 acpi_status status; 810 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL }; 811 union acpi_object *obj; 812 813 /* 814 * On laptops with this strange GUID (non Acer), normal probing doesn't 815 * work. 816 */ 817 if (wmi_has_guid(AMW0_GUID2)) { 818 if ((quirks != &quirk_unknown) || 819 !AMW0_set_cap_acpi_check_device()) 820 interface->capability |= ACER_CAP_WIRELESS; 821 return AE_OK; 822 } 823 824 args.eax = ACER_AMW0_WRITE; 825 args.ecx = args.edx = 0; 826 827 args.ebx = 0xa2 << 8; 828 args.ebx |= ACER_AMW0_WIRELESS_MASK; 829 830 status = wmab_execute(&args, &out); 831 if (ACPI_FAILURE(status)) 832 return status; 833 834 obj = out.pointer; 835 if (obj && obj->type == ACPI_TYPE_BUFFER && 836 obj->buffer.length == sizeof(struct wmab_ret)) { 837 ret = *((struct wmab_ret *) obj->buffer.pointer); 838 } else { 839 status = AE_ERROR; 840 goto out; 841 } 842 843 if (ret.eax & 0x1) 844 interface->capability |= ACER_CAP_WIRELESS; 845 846 args.ebx = 2 << 8; 847 args.ebx |= ACER_AMW0_BLUETOOTH_MASK; 848 849 /* 850 * It's ok to use existing buffer for next wmab_execute call. 851 * But we need to kfree(out.pointer) if next wmab_execute fail. 852 */ 853 status = wmab_execute(&args, &out); 854 if (ACPI_FAILURE(status)) 855 goto out; 856 857 obj = (union acpi_object *) out.pointer; 858 if (obj && obj->type == ACPI_TYPE_BUFFER 859 && obj->buffer.length == sizeof(struct wmab_ret)) { 860 ret = *((struct wmab_ret *) obj->buffer.pointer); 861 } else { 862 status = AE_ERROR; 863 goto out; 864 } 865 866 if (ret.eax & 0x1) 867 interface->capability |= ACER_CAP_BLUETOOTH; 868 869 /* 870 * This appears to be safe to enable, since all Wistron based laptops 871 * appear to use the same EC register for brightness, even if they 872 * differ for wireless, etc 873 */ 874 if (quirks->brightness >= 0) 875 interface->capability |= ACER_CAP_BRIGHTNESS; 876 877 status = AE_OK; 878 out: 879 kfree(out.pointer); 880 return status; 881 } 882 883 static struct wmi_interface AMW0_interface = { 884 .type = ACER_AMW0, 885 }; 886 887 static struct wmi_interface AMW0_V2_interface = { 888 .type = ACER_AMW0_V2, 889 }; 890 891 /* 892 * New interface (The WMID interface) 893 */ 894 static acpi_status 895 WMI_execute_u32(u32 method_id, u32 in, u32 *out) 896 { 897 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) }; 898 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL }; 899 union acpi_object *obj; 900 u32 tmp = 0; 901 acpi_status status; 902 903 status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result); 904 905 if (ACPI_FAILURE(status)) 906 return status; 907 908 obj = (union acpi_object *) result.pointer; 909 if (obj) { 910 if (obj->type == ACPI_TYPE_BUFFER && 911 (obj->buffer.length == sizeof(u32) || 912 obj->buffer.length == sizeof(u64))) { 913 tmp = *((u32 *) obj->buffer.pointer); 914 } else if (obj->type == ACPI_TYPE_INTEGER) { 915 tmp = (u32) obj->integer.value; 916 } 917 } 918 919 if (out) 920 *out = tmp; 921 922 kfree(result.pointer); 923 924 return status; 925 } 926 927 static acpi_status WMID_get_u32(u32 *value, u32 cap) 928 { 929 acpi_status status; 930 u8 tmp; 931 u32 result, method_id = 0; 932 933 switch (cap) { 934 case ACER_CAP_WIRELESS: 935 method_id = ACER_WMID_GET_WIRELESS_METHODID; 936 break; 937 case ACER_CAP_BLUETOOTH: 938 method_id = ACER_WMID_GET_BLUETOOTH_METHODID; 939 break; 940 case ACER_CAP_BRIGHTNESS: 941 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID; 942 break; 943 case ACER_CAP_THREEG: 944 method_id = ACER_WMID_GET_THREEG_METHODID; 945 break; 946 case ACER_CAP_MAILLED: 947 if (quirks->mailled == 1) { 948 ec_read(0x9f, &tmp); 949 *value = tmp & 0x1; 950 return 0; 951 } 952 default: 953 return AE_ERROR; 954 } 955 status = WMI_execute_u32(method_id, 0, &result); 956 957 if (ACPI_SUCCESS(status)) 958 *value = (u8)result; 959 960 return status; 961 } 962 963 static acpi_status WMID_set_u32(u32 value, u32 cap) 964 { 965 u32 method_id = 0; 966 char param; 967 968 switch (cap) { 969 case ACER_CAP_BRIGHTNESS: 970 if (value > max_brightness) 971 return AE_BAD_PARAMETER; 972 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID; 973 break; 974 case ACER_CAP_WIRELESS: 975 if (value > 1) 976 return AE_BAD_PARAMETER; 977 method_id = ACER_WMID_SET_WIRELESS_METHODID; 978 break; 979 case ACER_CAP_BLUETOOTH: 980 if (value > 1) 981 return AE_BAD_PARAMETER; 982 method_id = ACER_WMID_SET_BLUETOOTH_METHODID; 983 break; 984 case ACER_CAP_THREEG: 985 if (value > 1) 986 return AE_BAD_PARAMETER; 987 method_id = ACER_WMID_SET_THREEG_METHODID; 988 break; 989 case ACER_CAP_MAILLED: 990 if (value > 1) 991 return AE_BAD_PARAMETER; 992 if (quirks->mailled == 1) { 993 param = value ? 0x92 : 0x93; 994 i8042_lock_chip(); 995 i8042_command(¶m, 0x1059); 996 i8042_unlock_chip(); 997 return 0; 998 } 999 break; 1000 default: 1001 return AE_ERROR; 1002 } 1003 return WMI_execute_u32(method_id, (u32)value, NULL); 1004 } 1005 1006 static acpi_status wmid3_get_device_status(u32 *value, u16 device) 1007 { 1008 struct wmid3_gds_return_value return_value; 1009 acpi_status status; 1010 union acpi_object *obj; 1011 struct wmid3_gds_get_input_param params = { 1012 .function_num = 0x1, 1013 .hotkey_number = commun_fn_key_number, 1014 .devices = device, 1015 }; 1016 struct acpi_buffer input = { 1017 sizeof(struct wmid3_gds_get_input_param), 1018 ¶ms 1019 }; 1020 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; 1021 1022 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output); 1023 if (ACPI_FAILURE(status)) 1024 return status; 1025 1026 obj = output.pointer; 1027 1028 if (!obj) 1029 return AE_ERROR; 1030 else if (obj->type != ACPI_TYPE_BUFFER) { 1031 kfree(obj); 1032 return AE_ERROR; 1033 } 1034 if (obj->buffer.length != 8) { 1035 pr_warn("Unknown buffer length %d\n", obj->buffer.length); 1036 kfree(obj); 1037 return AE_ERROR; 1038 } 1039 1040 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer); 1041 kfree(obj); 1042 1043 if (return_value.error_code || return_value.ec_return_value) 1044 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n", 1045 device, 1046 return_value.error_code, 1047 return_value.ec_return_value); 1048 else 1049 *value = !!(return_value.devices & device); 1050 1051 return status; 1052 } 1053 1054 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap) 1055 { 1056 u16 device; 1057 1058 switch (cap) { 1059 case ACER_CAP_WIRELESS: 1060 device = ACER_WMID3_GDS_WIRELESS; 1061 break; 1062 case ACER_CAP_BLUETOOTH: 1063 device = ACER_WMID3_GDS_BLUETOOTH; 1064 break; 1065 case ACER_CAP_THREEG: 1066 device = ACER_WMID3_GDS_THREEG; 1067 break; 1068 default: 1069 return AE_ERROR; 1070 } 1071 return wmid3_get_device_status(value, device); 1072 } 1073 1074 static acpi_status wmid3_set_device_status(u32 value, u16 device) 1075 { 1076 struct wmid3_gds_return_value return_value; 1077 acpi_status status; 1078 union acpi_object *obj; 1079 u16 devices; 1080 struct wmid3_gds_get_input_param get_params = { 1081 .function_num = 0x1, 1082 .hotkey_number = commun_fn_key_number, 1083 .devices = commun_func_bitmap, 1084 }; 1085 struct acpi_buffer get_input = { 1086 sizeof(struct wmid3_gds_get_input_param), 1087 &get_params 1088 }; 1089 struct wmid3_gds_set_input_param set_params = { 1090 .function_num = 0x2, 1091 .hotkey_number = commun_fn_key_number, 1092 .devices = commun_func_bitmap, 1093 }; 1094 struct acpi_buffer set_input = { 1095 sizeof(struct wmid3_gds_set_input_param), 1096 &set_params 1097 }; 1098 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; 1099 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL }; 1100 1101 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output); 1102 if (ACPI_FAILURE(status)) 1103 return status; 1104 1105 obj = output.pointer; 1106 1107 if (!obj) 1108 return AE_ERROR; 1109 else if (obj->type != ACPI_TYPE_BUFFER) { 1110 kfree(obj); 1111 return AE_ERROR; 1112 } 1113 if (obj->buffer.length != 8) { 1114 pr_warn("Unknown buffer length %d\n", obj->buffer.length); 1115 kfree(obj); 1116 return AE_ERROR; 1117 } 1118 1119 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer); 1120 kfree(obj); 1121 1122 if (return_value.error_code || return_value.ec_return_value) { 1123 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n", 1124 return_value.error_code, 1125 return_value.ec_return_value); 1126 return status; 1127 } 1128 1129 devices = return_value.devices; 1130 set_params.devices = (value) ? (devices | device) : (devices & ~device); 1131 1132 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2); 1133 if (ACPI_FAILURE(status)) 1134 return status; 1135 1136 obj = output2.pointer; 1137 1138 if (!obj) 1139 return AE_ERROR; 1140 else if (obj->type != ACPI_TYPE_BUFFER) { 1141 kfree(obj); 1142 return AE_ERROR; 1143 } 1144 if (obj->buffer.length != 4) { 1145 pr_warn("Unknown buffer length %d\n", obj->buffer.length); 1146 kfree(obj); 1147 return AE_ERROR; 1148 } 1149 1150 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer); 1151 kfree(obj); 1152 1153 if (return_value.error_code || return_value.ec_return_value) 1154 pr_warn("Set Device Status failed: 0x%x - 0x%x\n", 1155 return_value.error_code, 1156 return_value.ec_return_value); 1157 1158 return status; 1159 } 1160 1161 static acpi_status wmid_v2_set_u32(u32 value, u32 cap) 1162 { 1163 u16 device; 1164 1165 switch (cap) { 1166 case ACER_CAP_WIRELESS: 1167 device = ACER_WMID3_GDS_WIRELESS; 1168 break; 1169 case ACER_CAP_BLUETOOTH: 1170 device = ACER_WMID3_GDS_BLUETOOTH; 1171 break; 1172 case ACER_CAP_THREEG: 1173 device = ACER_WMID3_GDS_THREEG; 1174 break; 1175 default: 1176 return AE_ERROR; 1177 } 1178 return wmid3_set_device_status(value, device); 1179 } 1180 1181 static void type_aa_dmi_decode(const struct dmi_header *header, void *dummy) 1182 { 1183 struct hotkey_function_type_aa *type_aa; 1184 1185 /* We are looking for OEM-specific Type AAh */ 1186 if (header->type != 0xAA) 1187 return; 1188 1189 has_type_aa = true; 1190 type_aa = (struct hotkey_function_type_aa *) header; 1191 1192 pr_info("Function bitmap for Communication Button: 0x%x\n", 1193 type_aa->commun_func_bitmap); 1194 commun_func_bitmap = type_aa->commun_func_bitmap; 1195 1196 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS) 1197 interface->capability |= ACER_CAP_WIRELESS; 1198 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG) 1199 interface->capability |= ACER_CAP_THREEG; 1200 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH) 1201 interface->capability |= ACER_CAP_BLUETOOTH; 1202 1203 commun_fn_key_number = type_aa->commun_fn_key_number; 1204 } 1205 1206 static acpi_status WMID_set_capabilities(void) 1207 { 1208 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL}; 1209 union acpi_object *obj; 1210 acpi_status status; 1211 u32 devices; 1212 1213 status = wmi_query_block(WMID_GUID2, 1, &out); 1214 if (ACPI_FAILURE(status)) 1215 return status; 1216 1217 obj = (union acpi_object *) out.pointer; 1218 if (obj) { 1219 if (obj->type == ACPI_TYPE_BUFFER && 1220 (obj->buffer.length == sizeof(u32) || 1221 obj->buffer.length == sizeof(u64))) { 1222 devices = *((u32 *) obj->buffer.pointer); 1223 } else if (obj->type == ACPI_TYPE_INTEGER) { 1224 devices = (u32) obj->integer.value; 1225 } else { 1226 kfree(out.pointer); 1227 return AE_ERROR; 1228 } 1229 } else { 1230 kfree(out.pointer); 1231 return AE_ERROR; 1232 } 1233 1234 pr_info("Function bitmap for Communication Device: 0x%x\n", devices); 1235 if (devices & 0x07) 1236 interface->capability |= ACER_CAP_WIRELESS; 1237 if (devices & 0x40) 1238 interface->capability |= ACER_CAP_THREEG; 1239 if (devices & 0x10) 1240 interface->capability |= ACER_CAP_BLUETOOTH; 1241 1242 if (!(devices & 0x20)) 1243 max_brightness = 0x9; 1244 1245 kfree(out.pointer); 1246 return status; 1247 } 1248 1249 static struct wmi_interface wmid_interface = { 1250 .type = ACER_WMID, 1251 }; 1252 1253 static struct wmi_interface wmid_v2_interface = { 1254 .type = ACER_WMID_v2, 1255 }; 1256 1257 /* 1258 * Generic Device (interface-independent) 1259 */ 1260 1261 static acpi_status get_u32(u32 *value, u32 cap) 1262 { 1263 acpi_status status = AE_ERROR; 1264 1265 switch (interface->type) { 1266 case ACER_AMW0: 1267 status = AMW0_get_u32(value, cap); 1268 break; 1269 case ACER_AMW0_V2: 1270 if (cap == ACER_CAP_MAILLED) { 1271 status = AMW0_get_u32(value, cap); 1272 break; 1273 } 1274 case ACER_WMID: 1275 status = WMID_get_u32(value, cap); 1276 break; 1277 case ACER_WMID_v2: 1278 if (cap & (ACER_CAP_WIRELESS | 1279 ACER_CAP_BLUETOOTH | 1280 ACER_CAP_THREEG)) 1281 status = wmid_v2_get_u32(value, cap); 1282 else if (wmi_has_guid(WMID_GUID2)) 1283 status = WMID_get_u32(value, cap); 1284 break; 1285 } 1286 1287 return status; 1288 } 1289 1290 static acpi_status set_u32(u32 value, u32 cap) 1291 { 1292 acpi_status status; 1293 1294 if (interface->capability & cap) { 1295 switch (interface->type) { 1296 case ACER_AMW0: 1297 return AMW0_set_u32(value, cap); 1298 case ACER_AMW0_V2: 1299 if (cap == ACER_CAP_MAILLED) 1300 return AMW0_set_u32(value, cap); 1301 1302 /* 1303 * On some models, some WMID methods don't toggle 1304 * properly. For those cases, we want to run the AMW0 1305 * method afterwards to be certain we've really toggled 1306 * the device state. 1307 */ 1308 if (cap == ACER_CAP_WIRELESS || 1309 cap == ACER_CAP_BLUETOOTH) { 1310 status = WMID_set_u32(value, cap); 1311 if (ACPI_FAILURE(status)) 1312 return status; 1313 1314 return AMW0_set_u32(value, cap); 1315 } 1316 case ACER_WMID: 1317 return WMID_set_u32(value, cap); 1318 case ACER_WMID_v2: 1319 if (cap & (ACER_CAP_WIRELESS | 1320 ACER_CAP_BLUETOOTH | 1321 ACER_CAP_THREEG)) 1322 return wmid_v2_set_u32(value, cap); 1323 else if (wmi_has_guid(WMID_GUID2)) 1324 return WMID_set_u32(value, cap); 1325 default: 1326 return AE_BAD_PARAMETER; 1327 } 1328 } 1329 return AE_BAD_PARAMETER; 1330 } 1331 1332 static void __init acer_commandline_init(void) 1333 { 1334 /* 1335 * These will all fail silently if the value given is invalid, or the 1336 * capability isn't available on the given interface 1337 */ 1338 if (mailled >= 0) 1339 set_u32(mailled, ACER_CAP_MAILLED); 1340 if (!has_type_aa && threeg >= 0) 1341 set_u32(threeg, ACER_CAP_THREEG); 1342 if (brightness >= 0) 1343 set_u32(brightness, ACER_CAP_BRIGHTNESS); 1344 } 1345 1346 /* 1347 * LED device (Mail LED only, no other LEDs known yet) 1348 */ 1349 static void mail_led_set(struct led_classdev *led_cdev, 1350 enum led_brightness value) 1351 { 1352 set_u32(value, ACER_CAP_MAILLED); 1353 } 1354 1355 static struct led_classdev mail_led = { 1356 .name = "acer-wmi::mail", 1357 .brightness_set = mail_led_set, 1358 }; 1359 1360 static int acer_led_init(struct device *dev) 1361 { 1362 return led_classdev_register(dev, &mail_led); 1363 } 1364 1365 static void acer_led_exit(void) 1366 { 1367 set_u32(LED_OFF, ACER_CAP_MAILLED); 1368 led_classdev_unregister(&mail_led); 1369 } 1370 1371 /* 1372 * Backlight device 1373 */ 1374 static struct backlight_device *acer_backlight_device; 1375 1376 static int read_brightness(struct backlight_device *bd) 1377 { 1378 u32 value; 1379 get_u32(&value, ACER_CAP_BRIGHTNESS); 1380 return value; 1381 } 1382 1383 static int update_bl_status(struct backlight_device *bd) 1384 { 1385 int intensity = bd->props.brightness; 1386 1387 if (bd->props.power != FB_BLANK_UNBLANK) 1388 intensity = 0; 1389 if (bd->props.fb_blank != FB_BLANK_UNBLANK) 1390 intensity = 0; 1391 1392 set_u32(intensity, ACER_CAP_BRIGHTNESS); 1393 1394 return 0; 1395 } 1396 1397 static const struct backlight_ops acer_bl_ops = { 1398 .get_brightness = read_brightness, 1399 .update_status = update_bl_status, 1400 }; 1401 1402 static int acer_backlight_init(struct device *dev) 1403 { 1404 struct backlight_properties props; 1405 struct backlight_device *bd; 1406 1407 memset(&props, 0, sizeof(struct backlight_properties)); 1408 props.type = BACKLIGHT_PLATFORM; 1409 props.max_brightness = max_brightness; 1410 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops, 1411 &props); 1412 if (IS_ERR(bd)) { 1413 pr_err("Could not register Acer backlight device\n"); 1414 acer_backlight_device = NULL; 1415 return PTR_ERR(bd); 1416 } 1417 1418 acer_backlight_device = bd; 1419 1420 bd->props.power = FB_BLANK_UNBLANK; 1421 bd->props.brightness = read_brightness(bd); 1422 backlight_update_status(bd); 1423 return 0; 1424 } 1425 1426 static void acer_backlight_exit(void) 1427 { 1428 backlight_device_unregister(acer_backlight_device); 1429 } 1430 1431 /* 1432 * Accelerometer device 1433 */ 1434 static acpi_handle gsensor_handle; 1435 1436 static int acer_gsensor_init(void) 1437 { 1438 acpi_status status; 1439 struct acpi_buffer output; 1440 union acpi_object out_obj; 1441 1442 output.length = sizeof(out_obj); 1443 output.pointer = &out_obj; 1444 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output); 1445 if (ACPI_FAILURE(status)) 1446 return -1; 1447 1448 return 0; 1449 } 1450 1451 static int acer_gsensor_open(struct input_dev *input) 1452 { 1453 return acer_gsensor_init(); 1454 } 1455 1456 static int acer_gsensor_event(void) 1457 { 1458 acpi_status status; 1459 struct acpi_buffer output; 1460 union acpi_object out_obj[5]; 1461 1462 if (!has_cap(ACER_CAP_ACCEL)) 1463 return -1; 1464 1465 output.length = sizeof(out_obj); 1466 output.pointer = out_obj; 1467 1468 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output); 1469 if (ACPI_FAILURE(status)) 1470 return -1; 1471 1472 if (out_obj->package.count != 4) 1473 return -1; 1474 1475 input_report_abs(acer_wmi_accel_dev, ABS_X, 1476 (s16)out_obj->package.elements[0].integer.value); 1477 input_report_abs(acer_wmi_accel_dev, ABS_Y, 1478 (s16)out_obj->package.elements[1].integer.value); 1479 input_report_abs(acer_wmi_accel_dev, ABS_Z, 1480 (s16)out_obj->package.elements[2].integer.value); 1481 input_sync(acer_wmi_accel_dev); 1482 return 0; 1483 } 1484 1485 /* 1486 * Rfkill devices 1487 */ 1488 static void acer_rfkill_update(struct work_struct *ignored); 1489 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update); 1490 static void acer_rfkill_update(struct work_struct *ignored) 1491 { 1492 u32 state; 1493 acpi_status status; 1494 1495 if (has_cap(ACER_CAP_WIRELESS)) { 1496 status = get_u32(&state, ACER_CAP_WIRELESS); 1497 if (ACPI_SUCCESS(status)) { 1498 if (quirks->wireless == 3) 1499 rfkill_set_hw_state(wireless_rfkill, !state); 1500 else 1501 rfkill_set_sw_state(wireless_rfkill, !state); 1502 } 1503 } 1504 1505 if (has_cap(ACER_CAP_BLUETOOTH)) { 1506 status = get_u32(&state, ACER_CAP_BLUETOOTH); 1507 if (ACPI_SUCCESS(status)) 1508 rfkill_set_sw_state(bluetooth_rfkill, !state); 1509 } 1510 1511 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) { 1512 status = get_u32(&state, ACER_WMID3_GDS_THREEG); 1513 if (ACPI_SUCCESS(status)) 1514 rfkill_set_sw_state(threeg_rfkill, !state); 1515 } 1516 1517 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ)); 1518 } 1519 1520 static int acer_rfkill_set(void *data, bool blocked) 1521 { 1522 acpi_status status; 1523 u32 cap = (unsigned long)data; 1524 1525 if (rfkill_inited) { 1526 status = set_u32(!blocked, cap); 1527 if (ACPI_FAILURE(status)) 1528 return -ENODEV; 1529 } 1530 1531 return 0; 1532 } 1533 1534 static const struct rfkill_ops acer_rfkill_ops = { 1535 .set_block = acer_rfkill_set, 1536 }; 1537 1538 static struct rfkill *acer_rfkill_register(struct device *dev, 1539 enum rfkill_type type, 1540 char *name, u32 cap) 1541 { 1542 int err; 1543 struct rfkill *rfkill_dev; 1544 u32 state; 1545 acpi_status status; 1546 1547 rfkill_dev = rfkill_alloc(name, dev, type, 1548 &acer_rfkill_ops, 1549 (void *)(unsigned long)cap); 1550 if (!rfkill_dev) 1551 return ERR_PTR(-ENOMEM); 1552 1553 status = get_u32(&state, cap); 1554 1555 err = rfkill_register(rfkill_dev); 1556 if (err) { 1557 rfkill_destroy(rfkill_dev); 1558 return ERR_PTR(err); 1559 } 1560 1561 if (ACPI_SUCCESS(status)) 1562 rfkill_set_sw_state(rfkill_dev, !state); 1563 1564 return rfkill_dev; 1565 } 1566 1567 static int acer_rfkill_init(struct device *dev) 1568 { 1569 int err; 1570 1571 if (has_cap(ACER_CAP_WIRELESS)) { 1572 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN, 1573 "acer-wireless", ACER_CAP_WIRELESS); 1574 if (IS_ERR(wireless_rfkill)) { 1575 err = PTR_ERR(wireless_rfkill); 1576 goto error_wireless; 1577 } 1578 } 1579 1580 if (has_cap(ACER_CAP_BLUETOOTH)) { 1581 bluetooth_rfkill = acer_rfkill_register(dev, 1582 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth", 1583 ACER_CAP_BLUETOOTH); 1584 if (IS_ERR(bluetooth_rfkill)) { 1585 err = PTR_ERR(bluetooth_rfkill); 1586 goto error_bluetooth; 1587 } 1588 } 1589 1590 if (has_cap(ACER_CAP_THREEG)) { 1591 threeg_rfkill = acer_rfkill_register(dev, 1592 RFKILL_TYPE_WWAN, "acer-threeg", 1593 ACER_CAP_THREEG); 1594 if (IS_ERR(threeg_rfkill)) { 1595 err = PTR_ERR(threeg_rfkill); 1596 goto error_threeg; 1597 } 1598 } 1599 1600 rfkill_inited = true; 1601 1602 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) && 1603 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG)) 1604 schedule_delayed_work(&acer_rfkill_work, 1605 round_jiffies_relative(HZ)); 1606 1607 return 0; 1608 1609 error_threeg: 1610 if (has_cap(ACER_CAP_BLUETOOTH)) { 1611 rfkill_unregister(bluetooth_rfkill); 1612 rfkill_destroy(bluetooth_rfkill); 1613 } 1614 error_bluetooth: 1615 if (has_cap(ACER_CAP_WIRELESS)) { 1616 rfkill_unregister(wireless_rfkill); 1617 rfkill_destroy(wireless_rfkill); 1618 } 1619 error_wireless: 1620 return err; 1621 } 1622 1623 static void acer_rfkill_exit(void) 1624 { 1625 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) && 1626 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG)) 1627 cancel_delayed_work_sync(&acer_rfkill_work); 1628 1629 if (has_cap(ACER_CAP_WIRELESS)) { 1630 rfkill_unregister(wireless_rfkill); 1631 rfkill_destroy(wireless_rfkill); 1632 } 1633 1634 if (has_cap(ACER_CAP_BLUETOOTH)) { 1635 rfkill_unregister(bluetooth_rfkill); 1636 rfkill_destroy(bluetooth_rfkill); 1637 } 1638 1639 if (has_cap(ACER_CAP_THREEG)) { 1640 rfkill_unregister(threeg_rfkill); 1641 rfkill_destroy(threeg_rfkill); 1642 } 1643 return; 1644 } 1645 1646 /* 1647 * sysfs interface 1648 */ 1649 static ssize_t show_bool_threeg(struct device *dev, 1650 struct device_attribute *attr, char *buf) 1651 { 1652 u32 result; \ 1653 acpi_status status; 1654 1655 pr_info("This threeg sysfs will be removed in 2012 - used by: %s\n", 1656 current->comm); 1657 status = get_u32(&result, ACER_CAP_THREEG); 1658 if (ACPI_SUCCESS(status)) 1659 return sprintf(buf, "%u\n", result); 1660 return sprintf(buf, "Read error\n"); 1661 } 1662 1663 static ssize_t set_bool_threeg(struct device *dev, 1664 struct device_attribute *attr, const char *buf, size_t count) 1665 { 1666 u32 tmp = simple_strtoul(buf, NULL, 10); 1667 acpi_status status = set_u32(tmp, ACER_CAP_THREEG); 1668 pr_info("This threeg sysfs will be removed in 2012 - used by: %s\n", 1669 current->comm); 1670 if (ACPI_FAILURE(status)) 1671 return -EINVAL; 1672 return count; 1673 } 1674 static DEVICE_ATTR(threeg, S_IRUGO | S_IWUSR, show_bool_threeg, 1675 set_bool_threeg); 1676 1677 static ssize_t show_interface(struct device *dev, struct device_attribute *attr, 1678 char *buf) 1679 { 1680 pr_info("This interface sysfs will be removed in 2012 - used by: %s\n", 1681 current->comm); 1682 switch (interface->type) { 1683 case ACER_AMW0: 1684 return sprintf(buf, "AMW0\n"); 1685 case ACER_AMW0_V2: 1686 return sprintf(buf, "AMW0 v2\n"); 1687 case ACER_WMID: 1688 return sprintf(buf, "WMID\n"); 1689 case ACER_WMID_v2: 1690 return sprintf(buf, "WMID v2\n"); 1691 default: 1692 return sprintf(buf, "Error!\n"); 1693 } 1694 } 1695 1696 static DEVICE_ATTR(interface, S_IRUGO, show_interface, NULL); 1697 1698 static void acer_wmi_notify(u32 value, void *context) 1699 { 1700 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; 1701 union acpi_object *obj; 1702 struct event_return_value return_value; 1703 acpi_status status; 1704 u16 device_state; 1705 const struct key_entry *key; 1706 u32 scancode; 1707 1708 status = wmi_get_event_data(value, &response); 1709 if (status != AE_OK) { 1710 pr_warn("bad event status 0x%x\n", status); 1711 return; 1712 } 1713 1714 obj = (union acpi_object *)response.pointer; 1715 1716 if (!obj) 1717 return; 1718 if (obj->type != ACPI_TYPE_BUFFER) { 1719 pr_warn("Unknown response received %d\n", obj->type); 1720 kfree(obj); 1721 return; 1722 } 1723 if (obj->buffer.length != 8) { 1724 pr_warn("Unknown buffer length %d\n", obj->buffer.length); 1725 kfree(obj); 1726 return; 1727 } 1728 1729 return_value = *((struct event_return_value *)obj->buffer.pointer); 1730 kfree(obj); 1731 1732 switch (return_value.function) { 1733 case WMID_HOTKEY_EVENT: 1734 device_state = return_value.device_state; 1735 pr_debug("device state: 0x%x\n", device_state); 1736 1737 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev, 1738 return_value.key_num); 1739 if (!key) { 1740 pr_warn("Unknown key number - 0x%x\n", 1741 return_value.key_num); 1742 } else { 1743 scancode = return_value.key_num; 1744 switch (key->keycode) { 1745 case KEY_WLAN: 1746 case KEY_BLUETOOTH: 1747 if (has_cap(ACER_CAP_WIRELESS)) 1748 rfkill_set_sw_state(wireless_rfkill, 1749 !(device_state & ACER_WMID3_GDS_WIRELESS)); 1750 if (has_cap(ACER_CAP_THREEG)) 1751 rfkill_set_sw_state(threeg_rfkill, 1752 !(device_state & ACER_WMID3_GDS_THREEG)); 1753 if (has_cap(ACER_CAP_BLUETOOTH)) 1754 rfkill_set_sw_state(bluetooth_rfkill, 1755 !(device_state & ACER_WMID3_GDS_BLUETOOTH)); 1756 break; 1757 case KEY_TOUCHPAD_TOGGLE: 1758 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ? 1759 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF; 1760 } 1761 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true); 1762 } 1763 break; 1764 case WMID_ACCEL_EVENT: 1765 acer_gsensor_event(); 1766 break; 1767 default: 1768 pr_warn("Unknown function number - %d - %d\n", 1769 return_value.function, return_value.key_num); 1770 break; 1771 } 1772 } 1773 1774 static acpi_status 1775 wmid3_set_lm_mode(struct lm_input_params *params, 1776 struct lm_return_value *return_value) 1777 { 1778 acpi_status status; 1779 union acpi_object *obj; 1780 1781 struct acpi_buffer input = { sizeof(struct lm_input_params), params }; 1782 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; 1783 1784 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output); 1785 if (ACPI_FAILURE(status)) 1786 return status; 1787 1788 obj = output.pointer; 1789 1790 if (!obj) 1791 return AE_ERROR; 1792 else if (obj->type != ACPI_TYPE_BUFFER) { 1793 kfree(obj); 1794 return AE_ERROR; 1795 } 1796 if (obj->buffer.length != 4) { 1797 pr_warn("Unknown buffer length %d\n", obj->buffer.length); 1798 kfree(obj); 1799 return AE_ERROR; 1800 } 1801 1802 *return_value = *((struct lm_return_value *)obj->buffer.pointer); 1803 kfree(obj); 1804 1805 return status; 1806 } 1807 1808 static int acer_wmi_enable_ec_raw(void) 1809 { 1810 struct lm_return_value return_value; 1811 acpi_status status; 1812 struct lm_input_params params = { 1813 .function_num = 0x1, 1814 .commun_devices = 0xFFFF, 1815 .devices = 0xFFFF, 1816 .lm_status = 0x00, /* Launch Manager Deactive */ 1817 }; 1818 1819 status = wmid3_set_lm_mode(¶ms, &return_value); 1820 1821 if (return_value.error_code || return_value.ec_return_value) 1822 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n", 1823 return_value.error_code, 1824 return_value.ec_return_value); 1825 else 1826 pr_info("Enabled EC raw mode\n"); 1827 1828 return status; 1829 } 1830 1831 static int acer_wmi_enable_lm(void) 1832 { 1833 struct lm_return_value return_value; 1834 acpi_status status; 1835 struct lm_input_params params = { 1836 .function_num = 0x1, 1837 .commun_devices = 0xFFFF, 1838 .devices = 0xFFFF, 1839 .lm_status = 0x01, /* Launch Manager Active */ 1840 }; 1841 1842 status = wmid3_set_lm_mode(¶ms, &return_value); 1843 1844 if (return_value.error_code || return_value.ec_return_value) 1845 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n", 1846 return_value.error_code, 1847 return_value.ec_return_value); 1848 1849 return status; 1850 } 1851 1852 static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level, 1853 void *ctx, void **retval) 1854 { 1855 *(acpi_handle *)retval = ah; 1856 return AE_OK; 1857 } 1858 1859 static int __init acer_wmi_get_handle(const char *name, const char *prop, 1860 acpi_handle *ah) 1861 { 1862 acpi_status status; 1863 acpi_handle handle; 1864 1865 BUG_ON(!name || !ah); 1866 1867 handle = NULL; 1868 status = acpi_get_devices(prop, acer_wmi_get_handle_cb, 1869 (void *)name, &handle); 1870 1871 if (ACPI_SUCCESS(status)) { 1872 *ah = handle; 1873 return 0; 1874 } else { 1875 return -ENODEV; 1876 } 1877 } 1878 1879 static int __init acer_wmi_accel_setup(void) 1880 { 1881 int err; 1882 1883 err = acer_wmi_get_handle("SENR", "BST0001", &gsensor_handle); 1884 if (err) 1885 return err; 1886 1887 interface->capability |= ACER_CAP_ACCEL; 1888 1889 acer_wmi_accel_dev = input_allocate_device(); 1890 if (!acer_wmi_accel_dev) 1891 return -ENOMEM; 1892 1893 acer_wmi_accel_dev->open = acer_gsensor_open; 1894 1895 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer"; 1896 acer_wmi_accel_dev->phys = "wmi/input1"; 1897 acer_wmi_accel_dev->id.bustype = BUS_HOST; 1898 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS); 1899 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0); 1900 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0); 1901 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0); 1902 1903 err = input_register_device(acer_wmi_accel_dev); 1904 if (err) 1905 goto err_free_dev; 1906 1907 return 0; 1908 1909 err_free_dev: 1910 input_free_device(acer_wmi_accel_dev); 1911 return err; 1912 } 1913 1914 static void acer_wmi_accel_destroy(void) 1915 { 1916 input_unregister_device(acer_wmi_accel_dev); 1917 } 1918 1919 static int __init acer_wmi_input_setup(void) 1920 { 1921 acpi_status status; 1922 int err; 1923 1924 acer_wmi_input_dev = input_allocate_device(); 1925 if (!acer_wmi_input_dev) 1926 return -ENOMEM; 1927 1928 acer_wmi_input_dev->name = "Acer WMI hotkeys"; 1929 acer_wmi_input_dev->phys = "wmi/input0"; 1930 acer_wmi_input_dev->id.bustype = BUS_HOST; 1931 1932 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL); 1933 if (err) 1934 goto err_free_dev; 1935 1936 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID, 1937 acer_wmi_notify, NULL); 1938 if (ACPI_FAILURE(status)) { 1939 err = -EIO; 1940 goto err_free_keymap; 1941 } 1942 1943 err = input_register_device(acer_wmi_input_dev); 1944 if (err) 1945 goto err_uninstall_notifier; 1946 1947 return 0; 1948 1949 err_uninstall_notifier: 1950 wmi_remove_notify_handler(ACERWMID_EVENT_GUID); 1951 err_free_keymap: 1952 sparse_keymap_free(acer_wmi_input_dev); 1953 err_free_dev: 1954 input_free_device(acer_wmi_input_dev); 1955 return err; 1956 } 1957 1958 static void acer_wmi_input_destroy(void) 1959 { 1960 wmi_remove_notify_handler(ACERWMID_EVENT_GUID); 1961 sparse_keymap_free(acer_wmi_input_dev); 1962 input_unregister_device(acer_wmi_input_dev); 1963 } 1964 1965 /* 1966 * debugfs functions 1967 */ 1968 static u32 get_wmid_devices(void) 1969 { 1970 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL}; 1971 union acpi_object *obj; 1972 acpi_status status; 1973 u32 devices = 0; 1974 1975 status = wmi_query_block(WMID_GUID2, 1, &out); 1976 if (ACPI_FAILURE(status)) 1977 return 0; 1978 1979 obj = (union acpi_object *) out.pointer; 1980 if (obj) { 1981 if (obj->type == ACPI_TYPE_BUFFER && 1982 (obj->buffer.length == sizeof(u32) || 1983 obj->buffer.length == sizeof(u64))) { 1984 devices = *((u32 *) obj->buffer.pointer); 1985 } else if (obj->type == ACPI_TYPE_INTEGER) { 1986 devices = (u32) obj->integer.value; 1987 } 1988 } 1989 1990 kfree(out.pointer); 1991 return devices; 1992 } 1993 1994 /* 1995 * Platform device 1996 */ 1997 static int acer_platform_probe(struct platform_device *device) 1998 { 1999 int err; 2000 2001 if (has_cap(ACER_CAP_MAILLED)) { 2002 err = acer_led_init(&device->dev); 2003 if (err) 2004 goto error_mailled; 2005 } 2006 2007 if (has_cap(ACER_CAP_BRIGHTNESS)) { 2008 err = acer_backlight_init(&device->dev); 2009 if (err) 2010 goto error_brightness; 2011 } 2012 2013 err = acer_rfkill_init(&device->dev); 2014 if (err) 2015 goto error_rfkill; 2016 2017 return err; 2018 2019 error_rfkill: 2020 if (has_cap(ACER_CAP_BRIGHTNESS)) 2021 acer_backlight_exit(); 2022 error_brightness: 2023 if (has_cap(ACER_CAP_MAILLED)) 2024 acer_led_exit(); 2025 error_mailled: 2026 return err; 2027 } 2028 2029 static int acer_platform_remove(struct platform_device *device) 2030 { 2031 if (has_cap(ACER_CAP_MAILLED)) 2032 acer_led_exit(); 2033 if (has_cap(ACER_CAP_BRIGHTNESS)) 2034 acer_backlight_exit(); 2035 2036 acer_rfkill_exit(); 2037 return 0; 2038 } 2039 2040 static int acer_suspend(struct device *dev) 2041 { 2042 u32 value; 2043 struct acer_data *data = &interface->data; 2044 2045 if (!data) 2046 return -ENOMEM; 2047 2048 if (has_cap(ACER_CAP_MAILLED)) { 2049 get_u32(&value, ACER_CAP_MAILLED); 2050 set_u32(LED_OFF, ACER_CAP_MAILLED); 2051 data->mailled = value; 2052 } 2053 2054 if (has_cap(ACER_CAP_BRIGHTNESS)) { 2055 get_u32(&value, ACER_CAP_BRIGHTNESS); 2056 data->brightness = value; 2057 } 2058 2059 return 0; 2060 } 2061 2062 static int acer_resume(struct device *dev) 2063 { 2064 struct acer_data *data = &interface->data; 2065 2066 if (!data) 2067 return -ENOMEM; 2068 2069 if (has_cap(ACER_CAP_MAILLED)) 2070 set_u32(data->mailled, ACER_CAP_MAILLED); 2071 2072 if (has_cap(ACER_CAP_BRIGHTNESS)) 2073 set_u32(data->brightness, ACER_CAP_BRIGHTNESS); 2074 2075 if (has_cap(ACER_CAP_ACCEL)) 2076 acer_gsensor_init(); 2077 2078 return 0; 2079 } 2080 2081 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume); 2082 2083 static void acer_platform_shutdown(struct platform_device *device) 2084 { 2085 struct acer_data *data = &interface->data; 2086 2087 if (!data) 2088 return; 2089 2090 if (has_cap(ACER_CAP_MAILLED)) 2091 set_u32(LED_OFF, ACER_CAP_MAILLED); 2092 } 2093 2094 static struct platform_driver acer_platform_driver = { 2095 .driver = { 2096 .name = "acer-wmi", 2097 .owner = THIS_MODULE, 2098 .pm = &acer_pm, 2099 }, 2100 .probe = acer_platform_probe, 2101 .remove = acer_platform_remove, 2102 .shutdown = acer_platform_shutdown, 2103 }; 2104 2105 static struct platform_device *acer_platform_device; 2106 2107 static int remove_sysfs(struct platform_device *device) 2108 { 2109 if (has_cap(ACER_CAP_THREEG)) 2110 device_remove_file(&device->dev, &dev_attr_threeg); 2111 2112 device_remove_file(&device->dev, &dev_attr_interface); 2113 2114 return 0; 2115 } 2116 2117 static int create_sysfs(void) 2118 { 2119 int retval = -ENOMEM; 2120 2121 if (has_cap(ACER_CAP_THREEG)) { 2122 retval = device_create_file(&acer_platform_device->dev, 2123 &dev_attr_threeg); 2124 if (retval) 2125 goto error_sysfs; 2126 } 2127 2128 retval = device_create_file(&acer_platform_device->dev, 2129 &dev_attr_interface); 2130 if (retval) 2131 goto error_sysfs; 2132 2133 return 0; 2134 2135 error_sysfs: 2136 remove_sysfs(acer_platform_device); 2137 return retval; 2138 } 2139 2140 static void remove_debugfs(void) 2141 { 2142 debugfs_remove(interface->debug.devices); 2143 debugfs_remove(interface->debug.root); 2144 } 2145 2146 static int create_debugfs(void) 2147 { 2148 interface->debug.root = debugfs_create_dir("acer-wmi", NULL); 2149 if (!interface->debug.root) { 2150 pr_err("Failed to create debugfs directory"); 2151 return -ENOMEM; 2152 } 2153 2154 interface->debug.devices = debugfs_create_u32("devices", S_IRUGO, 2155 interface->debug.root, 2156 &interface->debug.wmid_devices); 2157 if (!interface->debug.devices) 2158 goto error_debugfs; 2159 2160 return 0; 2161 2162 error_debugfs: 2163 remove_debugfs(); 2164 return -ENOMEM; 2165 } 2166 2167 static int __init acer_wmi_init(void) 2168 { 2169 int err; 2170 2171 pr_info("Acer Laptop ACPI-WMI Extras\n"); 2172 2173 if (dmi_check_system(acer_blacklist)) { 2174 pr_info("Blacklisted hardware detected - not loading\n"); 2175 return -ENODEV; 2176 } 2177 2178 find_quirks(); 2179 2180 /* 2181 * Detect which ACPI-WMI interface we're using. 2182 */ 2183 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1)) 2184 interface = &AMW0_V2_interface; 2185 2186 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1)) 2187 interface = &wmid_interface; 2188 2189 if (wmi_has_guid(WMID_GUID3)) 2190 interface = &wmid_v2_interface; 2191 2192 if (interface) 2193 dmi_walk(type_aa_dmi_decode, NULL); 2194 2195 if (wmi_has_guid(WMID_GUID2) && interface) { 2196 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) { 2197 pr_err("Unable to detect available WMID devices\n"); 2198 return -ENODEV; 2199 } 2200 /* WMID always provides brightness methods */ 2201 interface->capability |= ACER_CAP_BRIGHTNESS; 2202 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) { 2203 pr_err("No WMID device detection method found\n"); 2204 return -ENODEV; 2205 } 2206 2207 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) { 2208 interface = &AMW0_interface; 2209 2210 if (ACPI_FAILURE(AMW0_set_capabilities())) { 2211 pr_err("Unable to detect available AMW0 devices\n"); 2212 return -ENODEV; 2213 } 2214 } 2215 2216 if (wmi_has_guid(AMW0_GUID1)) 2217 AMW0_find_mailled(); 2218 2219 if (!interface) { 2220 pr_err("No or unsupported WMI interface, unable to load\n"); 2221 return -ENODEV; 2222 } 2223 2224 set_quirks(); 2225 2226 if (dmi_check_system(video_vendor_dmi_table)) 2227 acpi_video_dmi_promote_vendor(); 2228 if (acpi_video_backlight_support()) { 2229 interface->capability &= ~ACER_CAP_BRIGHTNESS; 2230 pr_info("Brightness must be controlled by acpi video driver\n"); 2231 } else { 2232 pr_info("Disabling ACPI video driver\n"); 2233 acpi_video_unregister(); 2234 } 2235 2236 if (wmi_has_guid(WMID_GUID3)) { 2237 if (ec_raw_mode) { 2238 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) { 2239 pr_err("Cannot enable EC raw mode\n"); 2240 return -ENODEV; 2241 } 2242 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) { 2243 pr_err("Cannot enable Launch Manager mode\n"); 2244 return -ENODEV; 2245 } 2246 } else if (ec_raw_mode) { 2247 pr_info("No WMID EC raw mode enable method\n"); 2248 } 2249 2250 if (wmi_has_guid(ACERWMID_EVENT_GUID)) { 2251 err = acer_wmi_input_setup(); 2252 if (err) 2253 return err; 2254 } 2255 2256 acer_wmi_accel_setup(); 2257 2258 err = platform_driver_register(&acer_platform_driver); 2259 if (err) { 2260 pr_err("Unable to register platform driver\n"); 2261 goto error_platform_register; 2262 } 2263 2264 acer_platform_device = platform_device_alloc("acer-wmi", -1); 2265 if (!acer_platform_device) { 2266 err = -ENOMEM; 2267 goto error_device_alloc; 2268 } 2269 2270 err = platform_device_add(acer_platform_device); 2271 if (err) 2272 goto error_device_add; 2273 2274 err = create_sysfs(); 2275 if (err) 2276 goto error_create_sys; 2277 2278 if (wmi_has_guid(WMID_GUID2)) { 2279 interface->debug.wmid_devices = get_wmid_devices(); 2280 err = create_debugfs(); 2281 if (err) 2282 goto error_create_debugfs; 2283 } 2284 2285 /* Override any initial settings with values from the commandline */ 2286 acer_commandline_init(); 2287 2288 return 0; 2289 2290 error_create_debugfs: 2291 remove_sysfs(acer_platform_device); 2292 error_create_sys: 2293 platform_device_del(acer_platform_device); 2294 error_device_add: 2295 platform_device_put(acer_platform_device); 2296 error_device_alloc: 2297 platform_driver_unregister(&acer_platform_driver); 2298 error_platform_register: 2299 if (wmi_has_guid(ACERWMID_EVENT_GUID)) 2300 acer_wmi_input_destroy(); 2301 if (has_cap(ACER_CAP_ACCEL)) 2302 acer_wmi_accel_destroy(); 2303 2304 return err; 2305 } 2306 2307 static void __exit acer_wmi_exit(void) 2308 { 2309 if (wmi_has_guid(ACERWMID_EVENT_GUID)) 2310 acer_wmi_input_destroy(); 2311 2312 if (has_cap(ACER_CAP_ACCEL)) 2313 acer_wmi_accel_destroy(); 2314 2315 remove_sysfs(acer_platform_device); 2316 remove_debugfs(); 2317 platform_device_unregister(acer_platform_device); 2318 platform_driver_unregister(&acer_platform_driver); 2319 2320 pr_info("Acer Laptop WMI Extras unloaded\n"); 2321 return; 2322 } 2323 2324 module_init(acer_wmi_init); 2325 module_exit(acer_wmi_exit); 2326