drivers/misc/acer-wmi.c

   1 /*
   2  *  Acer WMI Laptop Extras
   3  *
   4  *  Copyright (C) 2007-2008     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 ACER_WMI_VERSION        "0.1"
  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/backlight.h>
  33 #include <linux/leds.h>
  34 #include <linux/platform_device.h>
  35 #include <linux/acpi.h>
  36 #include <linux/i8042.h>
  37
  38 #include <acpi/acpi_drivers.h>
  39
  40 MODULE_AUTHOR("Carlos Corbacho");
  41 MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
  42 MODULE_LICENSE("GPL");
  43
  44 #define ACER_LOGPREFIX "acer-wmi: "
  45 #define ACER_ERR KERN_ERR ACER_LOGPREFIX
  46 #define ACER_NOTICE KERN_NOTICE ACER_LOGPREFIX
  47 #define ACER_INFO KERN_INFO ACER_LOGPREFIX
  48
  49 /*
  50  * The following defines quirks to get some specific functions to work
  51  * which are known to not be supported over ACPI-WMI (such as the mail LED
  52  * on WMID based Acer's)
  53  */
  54 struct acer_quirks {
  55         const char *vendor;
  56         const char *model;
  57         u16 quirks;
  58 };
  59
  60 /*
  61  * Magic Number
  62  * Meaning is unknown - this number is required for writing to ACPI for AMW0
  63  * (it's also used in acerhk when directly accessing the BIOS)
  64  */
  65 #define ACER_AMW0_WRITE 0x9610
  66
  67 /*
  68  * Bit masks for the AMW0 interface
  69  */
  70 #define ACER_AMW0_WIRELESS_MASK  0x35
  71 #define ACER_AMW0_BLUETOOTH_MASK 0x34
  72 #define ACER_AMW0_MAILLED_MASK   0x31
  73
  74 /*
  75  * Method IDs for WMID interface
  76  */
  77 #define ACER_WMID_GET_WIRELESS_METHODID         1
  78 #define ACER_WMID_GET_BLUETOOTH_METHODID        2
  79 #define ACER_WMID_GET_BRIGHTNESS_METHODID       3
  80 #define ACER_WMID_SET_WIRELESS_METHODID         4
  81 #define ACER_WMID_SET_BLUETOOTH_METHODID        5
  82 #define ACER_WMID_SET_BRIGHTNESS_METHODID       6
  83 #define ACER_WMID_GET_THREEG_METHODID           10
  84 #define ACER_WMID_SET_THREEG_METHODID           11
  85
  86 /*
  87  * Acer ACPI method GUIDs
  88  */
  89 #define AMW0_GUID1              "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
  90 #define WMID_GUID1              "6AF4F258-B401-42fd-BE91-3D4AC2D7C0D3"
  91 #define WMID_GUID2              "95764E09-FB56-4e83-B31A-37761F60994A"
  92
  93 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
  94 MODULE_ALIAS("wmi:6AF4F258-B401-42fd-BE91-3D4AC2D7C0D3");
  95
  96 /* Temporary workaround until the WMI sysfs interface goes in */
  97 MODULE_ALIAS("dmi:*:*Acer*:*:");
  98
  99 /*
 100  * Interface capability flags
 101  */
 102 #define ACER_CAP_MAILLED                (1<<0)
 103 #define ACER_CAP_WIRELESS               (1<<1)
 104 #define ACER_CAP_BLUETOOTH              (1<<2)
 105 #define ACER_CAP_BRIGHTNESS             (1<<3)
 106 #define ACER_CAP_THREEG                 (1<<4)
 107 #define ACER_CAP_ANY                    (0xFFFFFFFF)
 108
 109 /*
 110  * Interface type flags
 111  */
 112 enum interface_flags {
 113         ACER_AMW0,
 114         ACER_AMW0_V2,
 115         ACER_WMID,
 116 };
 117
 118 #define ACER_DEFAULT_WIRELESS  0
 119 #define ACER_DEFAULT_BLUETOOTH 0
 120 #define ACER_DEFAULT_MAILLED   0
 121 #define ACER_DEFAULT_THREEG    0
 122
 123 static int max_brightness = 0xF;
 124
 125 static int wireless = -1;
 126 static int bluetooth = -1;
 127 static int mailled = -1;
 128 static int brightness = -1;
 129 static int threeg = -1;
 130 static int force_series;
 131
 132 module_param(mailled, int, 0444);
 133 module_param(wireless, int, 0444);
 134 module_param(bluetooth, int, 0444);
 135 module_param(brightness, int, 0444);
 136 module_param(threeg, int, 0444);
 137 module_param(force_series, int, 0444);
 138 MODULE_PARM_DESC(wireless, "Set initial state of Wireless hardware");
 139 MODULE_PARM_DESC(bluetooth, "Set initial state of Bluetooth hardware");
 140 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
 141 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
 142 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
 143 MODULE_PARM_DESC(force_series, "Force a different laptop series");
 144
 145 struct acer_data {
 146         int mailled;
 147         int wireless;
 148         int bluetooth;
 149         int threeg;
 150         int brightness;
 151 };
 152
 153 /* Each low-level interface must define at least some of the following */
 154 struct wmi_interface {
 155         /* The WMI device type */
 156         u32 type;
 157
 158         /* The capabilities this interface provides */
 159         u32 capability;
 160
 161         /* Private data for the current interface */
 162         struct acer_data data;
 163 };
 164
 165 /* The static interface pointer, points to the currently detected interface */
 166 static struct wmi_interface *interface;
 167
 168 /*
 169  * Embedded Controller quirks
 170  * Some laptops require us to directly access the EC to either enable or query
 171  * features that are not available through WMI.
 172  */
 173
 174 struct quirk_entry {
 175         u8 wireless;
 176         u8 mailled;
 177         u8 brightness;
 178         u8 bluetooth;
 179 };
 180
 181 static struct quirk_entry *quirks;
 182
 183 static void set_quirks(void)
 184 {
 185         if (quirks->mailled)
 186                 interface->capability |= ACER_CAP_MAILLED;
 187
 188         if (quirks->brightness)
 189                 interface->capability |= ACER_CAP_BRIGHTNESS;
 190 }
 191
 192 static int dmi_matched(const struct dmi_system_id *dmi)
 193 {
 194         quirks = dmi->driver_data;
 195         return 0;
 196 }
 197
 198 static struct quirk_entry quirk_unknown = {
 199 };
 200
 201 static struct quirk_entry quirk_acer_travelmate_2490 = {
 202         .mailled = 1,
 203 };
 204
 205 /* This AMW0 laptop has no bluetooth */
 206 static struct quirk_entry quirk_medion_md_98300 = {
 207         .wireless = 1,
 208 };
 209
 210 static struct dmi_system_id acer_quirks[] = {
 211         {
 212                 .callback = dmi_matched,
 213                 .ident = "Acer Aspire 3100",
 214                 .matches = {
 215                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 216                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
 217                 },
 218                 .driver_data = &quirk_acer_travelmate_2490,
 219         },
 220         {
 221                 .callback = dmi_matched,
 222 <<<<<<< HEAD:drivers/misc/acer-wmi.c
 223 =======
 224                 .ident = "Acer Aspire 3610",
 225                 .matches = {
 226                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 227                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
 228                 },
 229                 .driver_data = &quirk_acer_travelmate_2490,
 230         },
 231         {
 232                 .callback = dmi_matched,
 233 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/misc/acer-wmi.c
 234                 .ident = "Acer Aspire 5100",
 235                 .matches = {
 236                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 237                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
 238                 },
 239                 .driver_data = &quirk_acer_travelmate_2490,
 240         },
 241         {
 242                 .callback = dmi_matched,
 243 <<<<<<< HEAD:drivers/misc/acer-wmi.c
 244 =======
 245                 .ident = "Acer Aspire 5610",
 246                 .matches = {
 247                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 248                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
 249                 },
 250                 .driver_data = &quirk_acer_travelmate_2490,
 251         },
 252         {
 253                 .callback = dmi_matched,
 254 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/misc/acer-wmi.c
 255                 .ident = "Acer Aspire 5630",
 256                 .matches = {
 257                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 258                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
 259                 },
 260                 .driver_data = &quirk_acer_travelmate_2490,
 261         },
 262         {
 263                 .callback = dmi_matched,
 264                 .ident = "Acer Aspire 5650",
 265                 .matches = {
 266                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 267                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
 268                 },
 269                 .driver_data = &quirk_acer_travelmate_2490,
 270         },
 271         {
 272                 .callback = dmi_matched,
 273                 .ident = "Acer Aspire 5680",
 274                 .matches = {
 275                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 276                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
 277                 },
 278                 .driver_data = &quirk_acer_travelmate_2490,
 279         },
 280         {
 281                 .callback = dmi_matched,
 282                 .ident = "Acer Aspire 9110",
 283                 .matches = {
 284                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 285                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
 286                 },
 287                 .driver_data = &quirk_acer_travelmate_2490,
 288         },
 289         {
 290                 .callback = dmi_matched,
 291                 .ident = "Acer TravelMate 2490",
 292                 .matches = {
 293                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 294                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
 295                 },
 296                 .driver_data = &quirk_acer_travelmate_2490,
 297         },
 298         {
 299                 .callback = dmi_matched,
 300 <<<<<<< HEAD:drivers/misc/acer-wmi.c
 301 =======
 302                 .ident = "Acer TravelMate 4200",
 303                 .matches = {
 304                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 305                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
 306                 },
 307                 .driver_data = &quirk_acer_travelmate_2490,
 308         },
 309         {
 310                 .callback = dmi_matched,
 311 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/misc/acer-wmi.c
 312                 .ident = "Medion MD 98300",
 313                 .matches = {
 314                         DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
 315                         DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
 316                 },
 317                 .driver_data = &quirk_medion_md_98300,
 318         },
 319         {}
 320 };
 321
 322 /* Find which quirks are needed for a particular vendor/ model pair */
 323 static void find_quirks(void)
 324 {
 325         if (!force_series) {
 326                 dmi_check_system(acer_quirks);
 327         } else if (force_series == 2490) {
 328                 quirks = &quirk_acer_travelmate_2490;
 329         }
 330
 331         if (quirks == NULL)
 332                 quirks = &quirk_unknown;
 333
 334         set_quirks();
 335 }
 336
 337 /*
 338  * General interface convenience methods
 339  */
 340
 341 static bool has_cap(u32 cap)
 342 {
 343         if ((interface->capability & cap) != 0)
 344                 return 1;
 345
 346         return 0;
 347 }
 348
 349 /*
 350  * AMW0 (V1) interface
 351  */
 352 struct wmab_args {
 353         u32 eax;
 354         u32 ebx;
 355         u32 ecx;
 356         u32 edx;
 357 };
 358
 359 struct wmab_ret {
 360         u32 eax;
 361         u32 ebx;
 362         u32 ecx;
 363         u32 edx;
 364         u32 eex;
 365 };
 366
 367 static acpi_status wmab_execute(struct wmab_args *regbuf,
 368 struct acpi_buffer *result)
 369 {
 370         struct acpi_buffer input;
 371         acpi_status status;
 372         input.length = sizeof(struct wmab_args);
 373         input.pointer = (u8 *)regbuf;
 374
 375         status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result);
 376
 377         return status;
 378 }
 379
 380 static acpi_status AMW0_get_u32(u32 *value, u32 cap,
 381 struct wmi_interface *iface)
 382 {
 383         int err;
 384         u8 result;
 385
 386         switch (cap) {
 387         case ACER_CAP_MAILLED:
 388                 switch (quirks->mailled) {
 389                 default:
 390                         err = ec_read(0xA, &result);
 391                         if (err)
 392                                 return AE_ERROR;
 393                         *value = (result >> 7) & 0x1;
 394                         return AE_OK;
 395                 }
 396                 break;
 397         case ACER_CAP_WIRELESS:
 398                 switch (quirks->wireless) {
 399                 case 1:
 400                         err = ec_read(0x7B, &result);
 401                         if (err)
 402                                 return AE_ERROR;
 403                         *value = result & 0x1;
 404                         return AE_OK;
 405                 default:
 406                         err = ec_read(0xA, &result);
 407                         if (err)
 408                                 return AE_ERROR;
 409                         *value = (result >> 2) & 0x1;
 410                         return AE_OK;
 411                 }
 412                 break;
 413         case ACER_CAP_BLUETOOTH:
 414                 switch (quirks->bluetooth) {
 415                 default:
 416                         err = ec_read(0xA, &result);
 417                         if (err)
 418                                 return AE_ERROR;
 419                         *value = (result >> 4) & 0x1;
 420                         return AE_OK;
 421                 }
 422                 break;
 423         case ACER_CAP_BRIGHTNESS:
 424                 switch (quirks->brightness) {
 425                 default:
 426                         err = ec_read(0x83, &result);
 427                         if (err)
 428                                 return AE_ERROR;
 429                         *value = result;
 430                         return AE_OK;
 431                 }
 432                 break;
 433         default:
 434                 return AE_BAD_ADDRESS;
 435         }
 436         return AE_OK;
 437 }
 438
 439 static acpi_status AMW0_set_u32(u32 value, u32 cap, struct wmi_interface *iface)
 440 {
 441         struct wmab_args args;
 442
 443         args.eax = ACER_AMW0_WRITE;
 444         args.ebx = value ? (1<<8) : 0;
 445         args.ecx = args.edx = 0;
 446
 447         switch (cap) {
 448         case ACER_CAP_MAILLED:
 449                 if (value > 1)
 450                         return AE_BAD_PARAMETER;
 451                 args.ebx |= ACER_AMW0_MAILLED_MASK;
 452                 break;
 453         case ACER_CAP_WIRELESS:
 454                 if (value > 1)
 455                         return AE_BAD_PARAMETER;
 456                 args.ebx |= ACER_AMW0_WIRELESS_MASK;
 457                 break;
 458         case ACER_CAP_BLUETOOTH:
 459                 if (value > 1)
 460                         return AE_BAD_PARAMETER;
 461                 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
 462                 break;
 463         case ACER_CAP_BRIGHTNESS:
 464                 if (value > max_brightness)
 465                         return AE_BAD_PARAMETER;
 466                 switch (quirks->brightness) {
 467                 default:
 468                         return ec_write(0x83, value);
 469                         break;
 470                 }
 471         default:
 472                 return AE_BAD_ADDRESS;
 473         }
 474
 475         /* Actually do the set */
 476         return wmab_execute(&args, NULL);
 477 }
 478
 479 static acpi_status AMW0_find_mailled(void)
 480 {
 481         struct wmab_args args;
 482         struct wmab_ret ret;
 483         acpi_status status = AE_OK;
 484         struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
 485         union acpi_object *obj;
 486
 487         args.eax = 0x86;
 488         args.ebx = args.ecx = args.edx = 0;
 489
 490         status = wmab_execute(&args, &out);
 491         if (ACPI_FAILURE(status))
 492                 return status;
 493
 494         obj = (union acpi_object *) out.pointer;
 495         if (obj && obj->type == ACPI_TYPE_BUFFER &&
 496         obj->buffer.length == sizeof(struct wmab_ret)) {
 497                 ret = *((struct wmab_ret *) obj->buffer.pointer);
 498         } else {
 499                 return AE_ERROR;
 500         }
 501
 502         if (ret.eex & 0x1)
 503                 interface->capability |= ACER_CAP_MAILLED;
 504
 505         kfree(out.pointer);
 506
 507         return AE_OK;
 508 }
 509
 510 static acpi_status AMW0_set_capabilities(void)
 511 {
 512         struct wmab_args args;
 513         struct wmab_ret ret;
 514         acpi_status status = AE_OK;
 515         struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
 516         union acpi_object *obj;
 517
 518         args.eax = ACER_AMW0_WRITE;
 519         args.ecx = args.edx = 0;
 520
 521         args.ebx = 0xa2 << 8;
 522         args.ebx |= ACER_AMW0_WIRELESS_MASK;
 523
 524         status = wmab_execute(&args, &out);
 525         if (ACPI_FAILURE(status))
 526                 return status;
 527
 528         obj = (union acpi_object *) out.pointer;
 529         if (obj && obj->type == ACPI_TYPE_BUFFER &&
 530         obj->buffer.length == sizeof(struct wmab_ret)) {
 531                 ret = *((struct wmab_ret *) obj->buffer.pointer);
 532         } else {
 533                 return AE_ERROR;
 534         }
 535
 536         if (ret.eax & 0x1)
 537                 interface->capability |= ACER_CAP_WIRELESS;
 538
 539         args.ebx = 2 << 8;
 540         args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
 541
 542         status = wmab_execute(&args, &out);
 543         if (ACPI_FAILURE(status))
 544                 return status;
 545
 546         obj = (union acpi_object *) out.pointer;
 547         if (obj && obj->type == ACPI_TYPE_BUFFER
 548         && obj->buffer.length == sizeof(struct wmab_ret)) {
 549                 ret = *((struct wmab_ret *) obj->buffer.pointer);
 550         } else {
 551                 return AE_ERROR;
 552         }
 553
 554         if (ret.eax & 0x1)
 555                 interface->capability |= ACER_CAP_BLUETOOTH;
 556
 557         kfree(out.pointer);
 558
 559         /*
 560          * This appears to be safe to enable, since all Wistron based laptops
 561          * appear to use the same EC register for brightness, even if they
 562          * differ for wireless, etc
 563          */
 564         interface->capability |= ACER_CAP_BRIGHTNESS;
 565
 566         return AE_OK;
 567 }
 568
 569 static struct wmi_interface AMW0_interface = {
 570         .type = ACER_AMW0,
 571 };
 572
 573 static struct wmi_interface AMW0_V2_interface = {
 574         .type = ACER_AMW0_V2,
 575 };
 576
 577 /*
 578  * New interface (The WMID interface)
 579  */
 580 static acpi_status
 581 WMI_execute_u32(u32 method_id, u32 in, u32 *out)
 582 {
 583         struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
 584         struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
 585         union acpi_object *obj;
 586         u32 tmp;
 587         acpi_status status;
 588
 589         status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result);
 590
 591         if (ACPI_FAILURE(status))
 592                 return status;
 593
 594         obj = (union acpi_object *) result.pointer;
 595         if (obj && obj->type == ACPI_TYPE_BUFFER &&
 596                 obj->buffer.length == sizeof(u32)) {
 597                 tmp = *((u32 *) obj->buffer.pointer);
 598         } else {
 599                 tmp = 0;
 600         }
 601
 602         if (out)
 603                 *out = tmp;
 604
 605         kfree(result.pointer);
 606
 607         return status;
 608 }
 609
 610 static acpi_status WMID_get_u32(u32 *value, u32 cap,
 611 struct wmi_interface *iface)
 612 {
 613         acpi_status status;
 614         u8 tmp;
 615         u32 result, method_id = 0;
 616
 617         switch (cap) {
 618         case ACER_CAP_WIRELESS:
 619                 method_id = ACER_WMID_GET_WIRELESS_METHODID;
 620                 break;
 621         case ACER_CAP_BLUETOOTH:
 622                 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
 623                 break;
 624         case ACER_CAP_BRIGHTNESS:
 625                 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
 626                 break;
 627         case ACER_CAP_THREEG:
 628                 method_id = ACER_WMID_GET_THREEG_METHODID;
 629                 break;
 630         case ACER_CAP_MAILLED:
 631                 if (quirks->mailled == 1) {
 632                         ec_read(0x9f, &tmp);
 633                         *value = tmp & 0x1;
 634                         return 0;
 635                 }
 636         default:
 637                 return AE_BAD_ADDRESS;
 638         }
 639         status = WMI_execute_u32(method_id, 0, &result);
 640
 641         if (ACPI_SUCCESS(status))
 642                 *value = (u8)result;
 643
 644         return status;
 645 }
 646
 647 static acpi_status WMID_set_u32(u32 value, u32 cap, struct wmi_interface *iface)
 648 {
 649         u32 method_id = 0;
 650         char param;
 651
 652         switch (cap) {
 653         case ACER_CAP_BRIGHTNESS:
 654                 if (value > max_brightness)
 655                         return AE_BAD_PARAMETER;
 656                 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
 657                 break;
 658         case ACER_CAP_WIRELESS:
 659                 if (value > 1)
 660                         return AE_BAD_PARAMETER;
 661                 method_id = ACER_WMID_SET_WIRELESS_METHODID;
 662                 break;
 663         case ACER_CAP_BLUETOOTH:
 664                 if (value > 1)
 665                         return AE_BAD_PARAMETER;
 666                 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
 667                 break;
 668         case ACER_CAP_THREEG:
 669                 if (value > 1)
 670                         return AE_BAD_PARAMETER;
 671                 method_id = ACER_WMID_SET_THREEG_METHODID;
 672                 break;
 673         case ACER_CAP_MAILLED:
 674                 if (value > 1)
 675                         return AE_BAD_PARAMETER;
 676                 if (quirks->mailled == 1) {
 677                         param = value ? 0x92 : 0x93;
 678                         i8042_command(&param, 0x1059);
 679                         return 0;
 680                 }
 681                 break;
 682         default:
 683                 return AE_BAD_ADDRESS;
 684         }
 685         return WMI_execute_u32(method_id, (u32)value, NULL);
 686 }
 687
 688 static acpi_status WMID_set_capabilities(void)
 689 {
 690         struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
 691         union acpi_object *obj;
 692         acpi_status status;
 693         u32 devices;
 694
 695         status = wmi_query_block(WMID_GUID2, 1, &out);
 696         if (ACPI_FAILURE(status))
 697                 return status;
 698
 699         obj = (union acpi_object *) out.pointer;
 700         if (obj && obj->type == ACPI_TYPE_BUFFER &&
 701                 obj->buffer.length == sizeof(u32)) {
 702                 devices = *((u32 *) obj->buffer.pointer);
 703         } else {
 704                 return AE_ERROR;
 705         }
 706
 707         /* Not sure on the meaning of the relevant bits yet to detect these */
 708         interface->capability |= ACER_CAP_WIRELESS;
 709         interface->capability |= ACER_CAP_THREEG;
 710
 711         /* WMID always provides brightness methods */
 712         interface->capability |= ACER_CAP_BRIGHTNESS;
 713
 714         if (devices & 0x10)
 715                 interface->capability |= ACER_CAP_BLUETOOTH;
 716
 717         if (!(devices & 0x20))
 718                 max_brightness = 0x9;
 719
 720         return status;
 721 }
 722
 723 static struct wmi_interface wmid_interface = {
 724         .type = ACER_WMID,
 725 };
 726
 727 /*
 728  * Generic Device (interface-independent)
 729  */
 730
 731 static acpi_status get_u32(u32 *value, u32 cap)
 732 {
 733         acpi_status status = AE_BAD_ADDRESS;
 734
 735         switch (interface->type) {
 736         case ACER_AMW0:
 737                 status = AMW0_get_u32(value, cap, interface);
 738                 break;
 739         case ACER_AMW0_V2:
 740                 if (cap == ACER_CAP_MAILLED) {
 741                         status = AMW0_get_u32(value, cap, interface);
 742                         break;
 743                 }
 744         case ACER_WMID:
 745                 status = WMID_get_u32(value, cap, interface);
 746                 break;
 747         }
 748
 749         return status;
 750 }
 751
 752 static acpi_status set_u32(u32 value, u32 cap)
 753 {
 754         if (interface->capability & cap) {
 755                 switch (interface->type) {
 756                 case ACER_AMW0:
 757                         return AMW0_set_u32(value, cap, interface);
 758                 case ACER_AMW0_V2:
 759                 case ACER_WMID:
 760                         return WMID_set_u32(value, cap, interface);
 761                 default:
 762                         return AE_BAD_PARAMETER;
 763                 }
 764         }
 765         return AE_BAD_PARAMETER;
 766 }
 767
 768 static void __init acer_commandline_init(void)
 769 {
 770         /*
 771          * These will all fail silently if the value given is invalid, or the
 772          * capability isn't available on the given interface
 773          */
 774         set_u32(mailled, ACER_CAP_MAILLED);
 775         set_u32(wireless, ACER_CAP_WIRELESS);
 776         set_u32(bluetooth, ACER_CAP_BLUETOOTH);
 777         set_u32(threeg, ACER_CAP_THREEG);
 778         set_u32(brightness, ACER_CAP_BRIGHTNESS);
 779 }
 780
 781 /*
 782  * LED device (Mail LED only, no other LEDs known yet)
 783  */
 784 static void mail_led_set(struct led_classdev *led_cdev,
 785 enum led_brightness value)
 786 {
 787         set_u32(value, ACER_CAP_MAILLED);
 788 }
 789
 790 static struct led_classdev mail_led = {
 791 <<<<<<< HEAD:drivers/misc/acer-wmi.c
 792         .name = "acer-mail:green",
 793 =======
 794         .name = "acer-wmi::mail",
 795 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/misc/acer-wmi.c
 796         .brightness_set = mail_led_set,
 797 };
 798
 799 <<<<<<< HEAD:drivers/misc/acer-wmi.c
 800 static int __init acer_led_init(struct device *dev)
 801 =======
 802 static int __devinit acer_led_init(struct device *dev)
 803 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/misc/acer-wmi.c
 804 {
 805         return led_classdev_register(dev, &mail_led);
 806 }
 807
 808 static void acer_led_exit(void)
 809 {
 810         led_classdev_unregister(&mail_led);
 811 }
 812
 813 /*
 814  * Backlight device
 815  */
 816 static struct backlight_device *acer_backlight_device;
 817
 818 static int read_brightness(struct backlight_device *bd)
 819 {
 820         u32 value;
 821         get_u32(&value, ACER_CAP_BRIGHTNESS);
 822         return value;
 823 }
 824
 825 static int update_bl_status(struct backlight_device *bd)
 826 {
 827         set_u32(bd->props.brightness, ACER_CAP_BRIGHTNESS);
 828         return 0;
 829 }
 830
 831 static struct backlight_ops acer_bl_ops = {
 832         .get_brightness = read_brightness,
 833         .update_status = update_bl_status,
 834 };
 835
 836 <<<<<<< HEAD:drivers/misc/acer-wmi.c
 837 static int __init acer_backlight_init(struct device *dev)
 838 =======
 839 static int __devinit acer_backlight_init(struct device *dev)
 840 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/misc/acer-wmi.c
 841 {
 842         struct backlight_device *bd;
 843
 844         bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops);
 845         if (IS_ERR(bd)) {
 846                 printk(ACER_ERR "Could not register Acer backlight device\n");
 847                 acer_backlight_device = NULL;
 848                 return PTR_ERR(bd);
 849         }
 850
 851         acer_backlight_device = bd;
 852
 853         bd->props.max_brightness = max_brightness;
 854         bd->props.brightness = read_brightness(NULL);
 855         backlight_update_status(bd);
 856         return 0;
 857 }
 858
 859 <<<<<<< HEAD:drivers/misc/acer-wmi.c
 860 static void __exit acer_backlight_exit(void)
 861 =======
 862 static void acer_backlight_exit(void)
 863 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/misc/acer-wmi.c
 864 {
 865         backlight_device_unregister(acer_backlight_device);
 866 }
 867
 868 /*
 869  * Read/ write bool sysfs macro
 870  */
 871 #define show_set_bool(value, cap) \
 872 static ssize_t \
 873 show_bool_##value(struct device *dev, struct device_attribute *attr, \
 874         char *buf) \
 875 { \
 876         u32 result; \
 877         acpi_status status = get_u32(&result, cap); \
 878         if (ACPI_SUCCESS(status)) \
 879                 return sprintf(buf, "%u\n", result); \
 880         return sprintf(buf, "Read error\n"); \
 881 } \
 882 \
 883 static ssize_t \
 884 set_bool_##value(struct device *dev, struct device_attribute *attr, \
 885         const char *buf, size_t count) \
 886 { \
 887         u32 tmp = simple_strtoul(buf, NULL, 10); \
 888         acpi_status status = set_u32(tmp, cap); \
 889                 if (ACPI_FAILURE(status)) \
 890                         return -EINVAL; \
 891         return count; \
 892 } \
 893 static DEVICE_ATTR(value, S_IWUGO | S_IRUGO | S_IWUSR, \
 894         show_bool_##value, set_bool_##value);
 895
 896 show_set_bool(wireless, ACER_CAP_WIRELESS);
 897 show_set_bool(bluetooth, ACER_CAP_BLUETOOTH);
 898 show_set_bool(threeg, ACER_CAP_THREEG);
 899
 900 /*
 901  * Read interface sysfs macro
 902  */
 903 static ssize_t show_interface(struct device *dev, struct device_attribute *attr,
 904         char *buf)
 905 {
 906         switch (interface->type) {
 907         case ACER_AMW0:
 908                 return sprintf(buf, "AMW0\n");
 909         case ACER_AMW0_V2:
 910                 return sprintf(buf, "AMW0 v2\n");
 911         case ACER_WMID:
 912                 return sprintf(buf, "WMID\n");
 913         default:
 914                 return sprintf(buf, "Error!\n");
 915         }
 916 }
 917
 918 static DEVICE_ATTR(interface, S_IWUGO | S_IRUGO | S_IWUSR,
 919         show_interface, NULL);
 920
 921 /*
 922  * Platform device
 923  */
 924 static int __devinit acer_platform_probe(struct platform_device *device)
 925 {
 926         int err;
 927
 928         if (has_cap(ACER_CAP_MAILLED)) {
 929                 err = acer_led_init(&device->dev);
 930                 if (err)
 931                         goto error_mailled;
 932         }
 933
 934         if (has_cap(ACER_CAP_BRIGHTNESS)) {
 935                 err = acer_backlight_init(&device->dev);
 936                 if (err)
 937                         goto error_brightness;
 938         }
 939
 940         return 0;
 941
 942 error_brightness:
 943         acer_led_exit();
 944 error_mailled:
 945         return err;
 946 }
 947
 948 static int acer_platform_remove(struct platform_device *device)
 949 {
 950         if (has_cap(ACER_CAP_MAILLED))
 951                 acer_led_exit();
 952         if (has_cap(ACER_CAP_BRIGHTNESS))
 953                 acer_backlight_exit();
 954         return 0;
 955 }
 956
 957 static int acer_platform_suspend(struct platform_device *dev,
 958 pm_message_t state)
 959 {
 960         u32 value;
 961         struct acer_data *data = &interface->data;
 962
 963         if (!data)
 964                 return -ENOMEM;
 965
 966         if (has_cap(ACER_CAP_WIRELESS)) {
 967                 get_u32(&value, ACER_CAP_WIRELESS);
 968                 data->wireless = value;
 969         }
 970
 971         if (has_cap(ACER_CAP_BLUETOOTH)) {
 972                 get_u32(&value, ACER_CAP_BLUETOOTH);
 973                 data->bluetooth = value;
 974         }
 975
 976         if (has_cap(ACER_CAP_MAILLED)) {
 977                 get_u32(&value, ACER_CAP_MAILLED);
 978                 data->mailled = value;
 979         }
 980
 981         if (has_cap(ACER_CAP_BRIGHTNESS)) {
 982                 get_u32(&value, ACER_CAP_BRIGHTNESS);
 983                 data->brightness = value;
 984         }
 985
 986         return 0;
 987 }
 988
 989 static int acer_platform_resume(struct platform_device *device)
 990 {
 991         struct acer_data *data = &interface->data;
 992
 993         if (!data)
 994                 return -ENOMEM;
 995
 996         if (has_cap(ACER_CAP_WIRELESS))
 997                 set_u32(data->wireless, ACER_CAP_WIRELESS);
 998
 999         if (has_cap(ACER_CAP_BLUETOOTH))
1000                 set_u32(data->bluetooth, ACER_CAP_BLUETOOTH);
1001
1002         if (has_cap(ACER_CAP_THREEG))
1003                 set_u32(data->threeg, ACER_CAP_THREEG);
1004
1005         if (has_cap(ACER_CAP_MAILLED))
1006                 set_u32(data->mailled, ACER_CAP_MAILLED);
1007
1008         if (has_cap(ACER_CAP_BRIGHTNESS))
1009                 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
1010
1011         return 0;
1012 }
1013
1014 static struct platform_driver acer_platform_driver = {
1015         .driver = {
1016                 .name = "acer-wmi",
1017                 .owner = THIS_MODULE,
1018         },
1019         .probe = acer_platform_probe,
1020         .remove = acer_platform_remove,
1021         .suspend = acer_platform_suspend,
1022         .resume = acer_platform_resume,
1023 };
1024
1025 static struct platform_device *acer_platform_device;
1026
1027 static int remove_sysfs(struct platform_device *device)
1028 {
1029         if (has_cap(ACER_CAP_WIRELESS))
1030                 device_remove_file(&device->dev, &dev_attr_wireless);
1031
1032         if (has_cap(ACER_CAP_BLUETOOTH))
1033                 device_remove_file(&device->dev, &dev_attr_bluetooth);
1034
1035         if (has_cap(ACER_CAP_THREEG))
1036                 device_remove_file(&device->dev, &dev_attr_threeg);
1037
1038         device_remove_file(&device->dev, &dev_attr_interface);
1039
1040         return 0;
1041 }
1042
1043 static int create_sysfs(void)
1044 {
1045         int retval = -ENOMEM;
1046
1047         if (has_cap(ACER_CAP_WIRELESS)) {
1048                 retval = device_create_file(&acer_platform_device->dev,
1049                         &dev_attr_wireless);
1050                 if (retval)
1051                         goto error_sysfs;
1052         }
1053
1054         if (has_cap(ACER_CAP_BLUETOOTH)) {
1055                 retval = device_create_file(&acer_platform_device->dev,
1056                         &dev_attr_bluetooth);
1057                 if (retval)
1058                         goto error_sysfs;
1059         }
1060
1061         if (has_cap(ACER_CAP_THREEG)) {
1062                 retval = device_create_file(&acer_platform_device->dev,
1063                         &dev_attr_threeg);
1064                 if (retval)
1065                         goto error_sysfs;
1066         }
1067
1068         retval = device_create_file(&acer_platform_device->dev,
1069                 &dev_attr_interface);
1070         if (retval)
1071                 goto error_sysfs;
1072
1073         return 0;
1074
1075 error_sysfs:
1076                 remove_sysfs(acer_platform_device);
1077         return retval;
1078 }
1079
1080 static int __init acer_wmi_init(void)
1081 {
1082         int err;
1083
1084         printk(ACER_INFO "Acer Laptop ACPI-WMI Extras version %s\n",
1085                         ACER_WMI_VERSION);
1086
1087         /*
1088          * Detect which ACPI-WMI interface we're using.
1089          */
1090         if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
1091                 interface = &AMW0_V2_interface;
1092
1093         if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
1094                 interface = &wmid_interface;
1095
1096         if (wmi_has_guid(WMID_GUID2) && interface) {
1097                 if (ACPI_FAILURE(WMID_set_capabilities())) {
1098 <<<<<<< HEAD:drivers/misc/acer-wmi.c
1099                         printk(ACER_ERR "Unable to detect available devices\n");
1100 =======
1101                         printk(ACER_ERR "Unable to detect available WMID "
1102                                         "devices\n");
1103 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/misc/acer-wmi.c
1104                         return -ENODEV;
1105                 }
1106         } else if (!wmi_has_guid(WMID_GUID2) && interface) {
1107 <<<<<<< HEAD:drivers/misc/acer-wmi.c
1108                 printk(ACER_ERR "Unable to detect available devices\n");
1109 =======
1110                 printk(ACER_ERR "No WMID device detection method found\n");
1111 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/misc/acer-wmi.c
1112                 return -ENODEV;
1113         }
1114
1115         if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
1116                 interface = &AMW0_interface;
1117
1118                 if (ACPI_FAILURE(AMW0_set_capabilities())) {
1119 <<<<<<< HEAD:drivers/misc/acer-wmi.c
1120                         printk(ACER_ERR "Unable to detect available devices\n");
1121 =======
1122                         printk(ACER_ERR "Unable to detect available AMW0 "
1123                                         "devices\n");
1124 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/misc/acer-wmi.c
1125                         return -ENODEV;
1126                 }
1127         }
1128
1129 <<<<<<< HEAD:drivers/misc/acer-wmi.c
1130         if (wmi_has_guid(AMW0_GUID1)) {
1131                 if (ACPI_FAILURE(AMW0_find_mailled()))
1132                         printk(ACER_ERR "Unable to detect mail LED\n");
1133         }
1134 =======
1135         if (wmi_has_guid(AMW0_GUID1))
1136                 AMW0_find_mailled();
1137 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/misc/acer-wmi.c
1138
1139         find_quirks();
1140
1141         if (!interface) {
1142 <<<<<<< HEAD:drivers/misc/acer-wmi.c
1143                 printk(ACER_ERR "No or unsupported WMI interface, unable to ");
1144                 printk(KERN_CONT "load.\n");
1145 =======
1146                 printk(ACER_ERR "No or unsupported WMI interface, unable to "
1147                                 "load\n");
1148 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/misc/acer-wmi.c
1149                 return -ENODEV;
1150         }
1151
1152         if (platform_driver_register(&acer_platform_driver)) {
1153                 printk(ACER_ERR "Unable to register platform driver.\n");
1154                 goto error_platform_register;
1155         }
1156         acer_platform_device = platform_device_alloc("acer-wmi", -1);
1157         platform_device_add(acer_platform_device);
1158
1159         err = create_sysfs();
1160         if (err)
1161                 return err;
1162
1163         /* Override any initial settings with values from the commandline */
1164         acer_commandline_init();
1165
1166         return 0;
1167
1168 error_platform_register:
1169         return -ENODEV;
1170 }
1171
1172 static void __exit acer_wmi_exit(void)
1173 {
1174         remove_sysfs(acer_platform_device);
1175         platform_device_del(acer_platform_device);
1176         platform_driver_unregister(&acer_platform_driver);
1177
1178         printk(ACER_INFO "Acer Laptop WMI Extras unloaded\n");
1179         return;
1180 }
1181
1182 module_init(acer_wmi_init);
1183 module_exit(acer_wmi_exit);