drivers/input/serio/i8042-x86ia64io.h

   1 #ifndef _I8042_X86IA64IO_H
   2 #define _I8042_X86IA64IO_H
   3
   4 /*
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 as published by
   7  * the Free Software Foundation.
   8  */
   9
  10 #ifdef CONFIG_X86
  11 #include <asm/x86_init.h>
  12 #endif
  13
  14 /*
  15  * Names.
  16  */
  17
  18 #define I8042_KBD_PHYS_DESC "isa0060/serio0"
  19 #define I8042_AUX_PHYS_DESC "isa0060/serio1"
  20 #define I8042_MUX_PHYS_DESC "isa0060/serio%d"
  21
  22 /*
  23  * IRQs.
  24  */
  25
  26 #if defined(__ia64__)
  27 # define I8042_MAP_IRQ(x)       isa_irq_to_vector((x))
  28 #else
  29 # define I8042_MAP_IRQ(x)       (x)
  30 #endif
  31
  32 #define I8042_KBD_IRQ   i8042_kbd_irq
  33 #define I8042_AUX_IRQ   i8042_aux_irq
  34
  35 static int i8042_kbd_irq;
  36 static int i8042_aux_irq;
  37
  38 /*
  39  * Register numbers.
  40  */
  41
  42 #define I8042_COMMAND_REG       i8042_command_reg
  43 #define I8042_STATUS_REG        i8042_command_reg
  44 #define I8042_DATA_REG          i8042_data_reg
  45
  46 static int i8042_command_reg = 0x64;
  47 static int i8042_data_reg = 0x60;
  48
  49
  50 static inline int i8042_read_data(void)
  51 {
  52         return inb(I8042_DATA_REG);
  53 }
  54
  55 static inline int i8042_read_status(void)
  56 {
  57         return inb(I8042_STATUS_REG);
  58 }
  59
  60 static inline void i8042_write_data(int val)
  61 {
  62         outb(val, I8042_DATA_REG);
  63 }
  64
  65 static inline void i8042_write_command(int val)
  66 {
  67         outb(val, I8042_COMMAND_REG);
  68 }
  69
  70 #ifdef CONFIG_X86
  71
  72 #include <linux/dmi.h>
  73
  74 static const struct dmi_system_id __initconst i8042_dmi_noloop_table[] = {
  75         {
  76                 /*
  77                  * Arima-Rioworks HDAMB -
  78                  * AUX LOOP command does not raise AUX IRQ
  79                  */
  80                 .matches = {
  81                         DMI_MATCH(DMI_BOARD_VENDOR, "RIOWORKS"),
  82                         DMI_MATCH(DMI_BOARD_NAME, "HDAMB"),
  83                         DMI_MATCH(DMI_BOARD_VERSION, "Rev E"),
  84                 },
  85         },
  86         {
  87                 /* ASUS G1S */
  88                 .matches = {
  89                         DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer Inc."),
  90                         DMI_MATCH(DMI_BOARD_NAME, "G1S"),
  91                         DMI_MATCH(DMI_BOARD_VERSION, "1.0"),
  92                 },
  93         },
  94         {
  95                 /* ASUS P65UP5 - AUX LOOP command does not raise AUX IRQ */
  96                 .matches = {
  97                         DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
  98                         DMI_MATCH(DMI_BOARD_NAME, "P/I-P65UP5"),
  99                         DMI_MATCH(DMI_BOARD_VERSION, "REV 2.X"),
 100                 },
 101         },
 102         {
 103                 .matches = {
 104                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 105                         DMI_MATCH(DMI_PRODUCT_NAME, "X750LN"),
 106                 },
 107         },
 108         {
 109                 .matches = {
 110                         DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
 111                         DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
 112                         DMI_MATCH(DMI_PRODUCT_VERSION, "8500"),
 113                 },
 114         },
 115         {
 116                 .matches = {
 117                         DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
 118                         DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
 119                         DMI_MATCH(DMI_PRODUCT_VERSION, "DL760"),
 120                 },
 121         },
 122         {
 123                 /* Dell Embedded Box PC 3000 */
 124                 .matches = {
 125                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 126                         DMI_MATCH(DMI_PRODUCT_NAME, "Embedded Box PC 3000"),
 127                 },
 128         },
 129         {
 130                 /* OQO Model 01 */
 131                 .matches = {
 132                         DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
 133                         DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
 134                         DMI_MATCH(DMI_PRODUCT_VERSION, "00"),
 135                 },
 136         },
 137         {
 138                 /* ULI EV4873 - AUX LOOP does not work properly */
 139                 .matches = {
 140                         DMI_MATCH(DMI_SYS_VENDOR, "ULI"),
 141                         DMI_MATCH(DMI_PRODUCT_NAME, "EV4873"),
 142                         DMI_MATCH(DMI_PRODUCT_VERSION, "5a"),
 143                 },
 144         },
 145         {
 146                 /* Microsoft Virtual Machine */
 147                 .matches = {
 148                         DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
 149                         DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"),
 150                         DMI_MATCH(DMI_PRODUCT_VERSION, "VS2005R2"),
 151                 },
 152         },
 153         {
 154                 /* Medion MAM 2070 */
 155                 .matches = {
 156                         DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
 157                         DMI_MATCH(DMI_PRODUCT_NAME, "MAM 2070"),
 158                         DMI_MATCH(DMI_PRODUCT_VERSION, "5a"),
 159                 },
 160         },
 161         {
 162                 /* Medion Akoya E7225 */
 163                 .matches = {
 164                         DMI_MATCH(DMI_SYS_VENDOR, "Medion"),
 165                         DMI_MATCH(DMI_PRODUCT_NAME, "Akoya E7225"),
 166                         DMI_MATCH(DMI_PRODUCT_VERSION, "1.0"),
 167                 },
 168         },
 169         {
 170                 /* Blue FB5601 */
 171                 .matches = {
 172                         DMI_MATCH(DMI_SYS_VENDOR, "blue"),
 173                         DMI_MATCH(DMI_PRODUCT_NAME, "FB5601"),
 174                         DMI_MATCH(DMI_PRODUCT_VERSION, "M606"),
 175                 },
 176         },
 177         {
 178                 /* Gigabyte M912 */
 179                 .matches = {
 180                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 181                         DMI_MATCH(DMI_PRODUCT_NAME, "M912"),
 182                         DMI_MATCH(DMI_PRODUCT_VERSION, "01"),
 183                 },
 184         },
 185         {
 186                 /* Gigabyte M1022M netbook */
 187                 .matches = {
 188                         DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co.,Ltd."),
 189                         DMI_MATCH(DMI_BOARD_NAME, "M1022E"),
 190                         DMI_MATCH(DMI_BOARD_VERSION, "1.02"),
 191                 },
 192         },
 193         {
 194                 /* Gigabyte Spring Peak - defines wrong chassis type */
 195                 .matches = {
 196                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 197                         DMI_MATCH(DMI_PRODUCT_NAME, "Spring Peak"),
 198                 },
 199         },
 200         {
 201                 /* Gigabyte T1005 - defines wrong chassis type ("Other") */
 202                 .matches = {
 203                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 204                         DMI_MATCH(DMI_PRODUCT_NAME, "T1005"),
 205                 },
 206         },
 207         {
 208                 /* Gigabyte T1005M/P - defines wrong chassis type ("Other") */
 209                 .matches = {
 210                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 211                         DMI_MATCH(DMI_PRODUCT_NAME, "T1005M/P"),
 212                 },
 213         },
 214         {
 215                 .matches = {
 216                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 217                         DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv9700"),
 218                         DMI_MATCH(DMI_PRODUCT_VERSION, "Rev 1"),
 219                 },
 220         },
 221         {
 222                 .matches = {
 223                         DMI_MATCH(DMI_SYS_VENDOR, "PEGATRON CORPORATION"),
 224                         DMI_MATCH(DMI_PRODUCT_NAME, "C15B"),
 225                 },
 226         },
 227         { }
 228 };
 229
 230 /*
 231  * Some Fujitsu notebooks are having trouble with touchpads if
 232  * active multiplexing mode is activated. Luckily they don't have
 233  * external PS/2 ports so we can safely disable it.
 234  * ... apparently some Toshibas don't like MUX mode either and
 235  * die horrible death on reboot.
 236  */
 237 static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
 238         {
 239                 /* Fujitsu Lifebook P7010/P7010D */
 240                 .matches = {
 241                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 242                         DMI_MATCH(DMI_PRODUCT_NAME, "P7010"),
 243                 },
 244         },
 245         {
 246                 /* Fujitsu Lifebook P7010 */
 247                 .matches = {
 248                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 249                         DMI_MATCH(DMI_PRODUCT_NAME, "0000000000"),
 250                 },
 251         },
 252         {
 253                 /* Fujitsu Lifebook P5020D */
 254                 .matches = {
 255                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 256                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P Series"),
 257                 },
 258         },
 259         {
 260                 /* Fujitsu Lifebook S2000 */
 261                 .matches = {
 262                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 263                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S Series"),
 264                 },
 265         },
 266         {
 267                 /* Fujitsu Lifebook S6230 */
 268                 .matches = {
 269                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 270                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S6230"),
 271                 },
 272         },
 273         {
 274                 /* Fujitsu Lifebook U745 */
 275                 .matches = {
 276                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 277                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U745"),
 278                 },
 279         },
 280         {
 281                 /* Fujitsu T70H */
 282                 .matches = {
 283                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 284                         DMI_MATCH(DMI_PRODUCT_NAME, "FMVLT70H"),
 285                 },
 286         },
 287         {
 288                 /* Fujitsu-Siemens Lifebook T3010 */
 289                 .matches = {
 290                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 291                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK T3010"),
 292                 },
 293         },
 294         {
 295                 /* Fujitsu-Siemens Lifebook E4010 */
 296                 .matches = {
 297                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 298                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E4010"),
 299                 },
 300         },
 301         {
 302                 /* Fujitsu-Siemens Amilo Pro 2010 */
 303                 .matches = {
 304                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 305                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro V2010"),
 306                 },
 307         },
 308         {
 309                 /* Fujitsu-Siemens Amilo Pro 2030 */
 310                 .matches = {
 311                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 312                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"),
 313                 },
 314         },
 315         {
 316                 /*
 317                  * No data is coming from the touchscreen unless KBC
 318                  * is in legacy mode.
 319                  */
 320                 /* Panasonic CF-29 */
 321                 .matches = {
 322                         DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
 323                         DMI_MATCH(DMI_PRODUCT_NAME, "CF-29"),
 324                 },
 325         },
 326         {
 327                 /*
 328                  * HP Pavilion DV4017EA -
 329                  * errors on MUX ports are reported without raising AUXDATA
 330                  * causing "spurious NAK" messages.
 331                  */
 332                 .matches = {
 333                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 334                         DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EA032EA#ABF)"),
 335                 },
 336         },
 337         {
 338                 /*
 339                  * HP Pavilion ZT1000 -
 340                  * like DV4017EA does not raise AUXERR for errors on MUX ports.
 341                  */
 342                 .matches = {
 343                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 344                         DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion Notebook PC"),
 345                         DMI_MATCH(DMI_PRODUCT_VERSION, "HP Pavilion Notebook ZT1000"),
 346                 },
 347         },
 348         {
 349                 /*
 350                  * HP Pavilion DV4270ca -
 351                  * like DV4017EA does not raise AUXERR for errors on MUX ports.
 352                  */
 353                 .matches = {
 354                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 355                         DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EH476UA#ABL)"),
 356                 },
 357         },
 358         {
 359                 .matches = {
 360                         DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 361                         DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P10"),
 362                 },
 363         },
 364         {
 365                 .matches = {
 366                         DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 367                         DMI_MATCH(DMI_PRODUCT_NAME, "EQUIUM A110"),
 368                 },
 369         },
 370         {
 371                 .matches = {
 372                         DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 373                         DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE C850D"),
 374                 },
 375         },
 376         {
 377                 .matches = {
 378                         DMI_MATCH(DMI_SYS_VENDOR, "ALIENWARE"),
 379                         DMI_MATCH(DMI_PRODUCT_NAME, "Sentia"),
 380                 },
 381         },
 382         {
 383                 /* Sharp Actius MM20 */
 384                 .matches = {
 385                         DMI_MATCH(DMI_SYS_VENDOR, "SHARP"),
 386                         DMI_MATCH(DMI_PRODUCT_NAME, "PC-MM20 Series"),
 387                 },
 388         },
 389         {
 390                 /* Sony Vaio FS-115b */
 391                 .matches = {
 392                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 393                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FS115B"),
 394                 },
 395         },
 396         {
 397                 /*
 398                  * Sony Vaio FZ-240E -
 399                  * reset and GET ID commands issued via KBD port are
 400                  * sometimes being delivered to AUX3.
 401                  */
 402                 .matches = {
 403                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 404                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ240E"),
 405                 },
 406         },
 407         {
 408                 /*
 409                  * Most (all?) VAIOs do not have external PS/2 ports nor
 410                  * they implement active multiplexing properly, and
 411                  * MUX discovery usually messes up keyboard/touchpad.
 412                  */
 413                 .matches = {
 414                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 415                         DMI_MATCH(DMI_BOARD_NAME, "VAIO"),
 416                 },
 417         },
 418         {
 419                 /* Amoi M636/A737 */
 420                 .matches = {
 421                         DMI_MATCH(DMI_SYS_VENDOR, "Amoi Electronics CO.,LTD."),
 422                         DMI_MATCH(DMI_PRODUCT_NAME, "M636/A737 platform"),
 423                 },
 424         },
 425         {
 426                 /* Lenovo 3000 n100 */
 427                 .matches = {
 428                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 429                         DMI_MATCH(DMI_PRODUCT_NAME, "076804U"),
 430                 },
 431         },
 432         {
 433                 .matches = {
 434                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 435                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
 436                 },
 437         },
 438         {
 439                 /* Acer Aspire 5710 */
 440                 .matches = {
 441                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 442                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5710"),
 443                 },
 444         },
 445         {
 446                 /* Acer Aspire 7738 */
 447                 .matches = {
 448                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 449                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7738"),
 450                 },
 451         },
 452         {
 453                 /* Gericom Bellagio */
 454                 .matches = {
 455                         DMI_MATCH(DMI_SYS_VENDOR, "Gericom"),
 456                         DMI_MATCH(DMI_PRODUCT_NAME, "N34AS6"),
 457                 },
 458         },
 459         {
 460                 /* IBM 2656 */
 461                 .matches = {
 462                         DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
 463                         DMI_MATCH(DMI_PRODUCT_NAME, "2656"),
 464                 },
 465         },
 466         {
 467                 /* Dell XPS M1530 */
 468                 .matches = {
 469                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 470                         DMI_MATCH(DMI_PRODUCT_NAME, "XPS M1530"),
 471                 },
 472         },
 473         {
 474                 /* Compal HEL80I */
 475                 .matches = {
 476                         DMI_MATCH(DMI_SYS_VENDOR, "COMPAL"),
 477                         DMI_MATCH(DMI_PRODUCT_NAME, "HEL80I"),
 478                 },
 479         },
 480         {
 481                 /* Dell Vostro 1510 */
 482                 .matches = {
 483                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 484                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro1510"),
 485                 },
 486         },
 487         {
 488                 /* Acer Aspire 5536 */
 489                 .matches = {
 490                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 491                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5536"),
 492                         DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
 493                 },
 494         },
 495         {
 496                 /* Dell Vostro V13 */
 497                 .matches = {
 498                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 499                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
 500                 },
 501         },
 502         {
 503                 /* Newer HP Pavilion dv4 models */
 504                 .matches = {
 505                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 506                         DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
 507                 },
 508         },
 509         {
 510                 /* Asus X450LCP */
 511                 .matches = {
 512                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 513                         DMI_MATCH(DMI_PRODUCT_NAME, "X450LCP"),
 514                 },
 515         },
 516         {
 517                 /* Avatar AVIU-145A6 */
 518                 .matches = {
 519                         DMI_MATCH(DMI_SYS_VENDOR, "Intel"),
 520                         DMI_MATCH(DMI_PRODUCT_NAME, "IC4I"),
 521                 },
 522         },
 523         {
 524                 /* TUXEDO BU1406 */
 525                 .matches = {
 526                         DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
 527                         DMI_MATCH(DMI_PRODUCT_NAME, "N24_25BU"),
 528                 },
 529         },
 530         {
 531                 /* Lenovo LaVie Z */
 532                 .matches = {
 533                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 534                         DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo LaVie Z"),
 535                 },
 536         },
 537         { }
 538 };
 539
 540 static const struct dmi_system_id i8042_dmi_forcemux_table[] __initconst = {
 541         {
 542                 /*
 543                  * Sony Vaio VGN-CS series require MUX or the touch sensor
 544                  * buttons will disturb touchpad operation
 545                  */
 546                 .matches = {
 547                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 548                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-CS"),
 549                 },
 550         },
 551         { }
 552 };
 553
 554 /*
 555  * On some Asus laptops, just running self tests cause problems.
 556  */
 557 static const struct dmi_system_id i8042_dmi_noselftest_table[] = {
 558         {
 559                 .matches = {
 560                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 561                         DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
 562                 },
 563         },
 564         { }
 565 };
 566 static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = {
 567         {
 568                 /* MSI Wind U-100 */
 569                 .matches = {
 570                         DMI_MATCH(DMI_BOARD_NAME, "U-100"),
 571                         DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
 572                 },
 573         },
 574         {
 575                 /* LG Electronics X110 */
 576                 .matches = {
 577                         DMI_MATCH(DMI_BOARD_NAME, "X110"),
 578                         DMI_MATCH(DMI_BOARD_VENDOR, "LG Electronics Inc."),
 579                 },
 580         },
 581         {
 582                 /* Acer Aspire One 150 */
 583                 .matches = {
 584                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 585                         DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
 586                 },
 587         },
 588         {
 589                 /* Advent 4211 */
 590                 .matches = {
 591                         DMI_MATCH(DMI_SYS_VENDOR, "DIXONSXP"),
 592                         DMI_MATCH(DMI_PRODUCT_NAME, "Advent 4211"),
 593                 },
 594         },
 595         {
 596                 /* Medion Akoya Mini E1210 */
 597                 .matches = {
 598                         DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
 599                         DMI_MATCH(DMI_PRODUCT_NAME, "E1210"),
 600                 },
 601         },
 602         {
 603                 /* Medion Akoya E1222 */
 604                 .matches = {
 605                         DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
 606                         DMI_MATCH(DMI_PRODUCT_NAME, "E122X"),
 607                 },
 608         },
 609         {
 610                 /* Mivvy M310 */
 611                 .matches = {
 612                         DMI_MATCH(DMI_SYS_VENDOR, "VIOOO"),
 613                         DMI_MATCH(DMI_PRODUCT_NAME, "N10"),
 614                 },
 615         },
 616         {
 617                 /* Dell Vostro 1320 */
 618                 .matches = {
 619                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 620                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1320"),
 621                 },
 622         },
 623         {
 624                 /* Dell Vostro 1520 */
 625                 .matches = {
 626                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 627                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1520"),
 628                 },
 629         },
 630         {
 631                 /* Dell Vostro 1720 */
 632                 .matches = {
 633                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 634                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1720"),
 635                 },
 636         },
 637         {
 638                 /* Lenovo Ideapad U455 */
 639                 .matches = {
 640                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 641                         DMI_MATCH(DMI_PRODUCT_NAME, "20046"),
 642                 },
 643         },
 644         {
 645                 /* Lenovo ThinkPad L460 */
 646                 .matches = {
 647                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 648                         DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L460"),
 649                 },
 650         },
 651         {
 652                 /* Clevo P650RS, 650RP6, Sager NP8152-S, and others */
 653                 .matches = {
 654                         DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
 655                         DMI_MATCH(DMI_PRODUCT_NAME, "P65xRP"),
 656                 },
 657         },
 658         { }
 659 };
 660
 661 #ifdef CONFIG_PNP
 662 static const struct dmi_system_id __initconst i8042_dmi_nopnp_table[] = {
 663         {
 664                 /* Intel MBO Desktop D845PESV */
 665                 .matches = {
 666                         DMI_MATCH(DMI_BOARD_NAME, "D845PESV"),
 667                         DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
 668                 },
 669         },
 670         {
 671                 /*
 672                  * Intel NUC D54250WYK - does not have i8042 controller but
 673                  * declares PS/2 devices in DSDT.
 674                  */
 675                 .matches = {
 676                         DMI_MATCH(DMI_BOARD_NAME, "D54250WYK"),
 677                         DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
 678                 },
 679         },
 680         {
 681                 /* MSI Wind U-100 */
 682                 .matches = {
 683                         DMI_MATCH(DMI_BOARD_NAME, "U-100"),
 684                         DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
 685                 },
 686         },
 687         { }
 688 };
 689
 690 static const struct dmi_system_id __initconst i8042_dmi_laptop_table[] = {
 691         {
 692                 .matches = {
 693                         DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
 694                 },
 695         },
 696         {
 697                 .matches = {
 698                         DMI_MATCH(DMI_CHASSIS_TYPE, "9"), /* Laptop */
 699                 },
 700         },
 701         {
 702                 .matches = {
 703                         DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
 704                 },
 705         },
 706         {
 707                 .matches = {
 708                         DMI_MATCH(DMI_CHASSIS_TYPE, "14"), /* Sub-Notebook */
 709                 },
 710         },
 711         { }
 712 };
 713 #endif
 714
 715 static const struct dmi_system_id __initconst i8042_dmi_notimeout_table[] = {
 716         {
 717                 /* Dell Vostro V13 */
 718                 .matches = {
 719                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 720                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
 721                 },
 722         },
 723         {
 724                 /* Newer HP Pavilion dv4 models */
 725                 .matches = {
 726                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 727                         DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
 728                 },
 729         },
 730         {
 731                 /* Fujitsu A544 laptop */
 732                 /* https://bugzilla.redhat.com/show_bug.cgi?id=1111138 */
 733                 .matches = {
 734                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 735                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK A544"),
 736                 },
 737         },
 738         {
 739                 /* Fujitsu AH544 laptop */
 740                 /* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
 741                 .matches = {
 742                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 743                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK AH544"),
 744                 },
 745         },
 746         {
 747                 /* Fujitsu U574 laptop */
 748                 /* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
 749                 .matches = {
 750                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 751                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U574"),
 752                 },
 753         },
 754         {
 755                 /* Fujitsu UH554 laptop */
 756                 .matches = {
 757                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 758                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK UH544"),
 759                 },
 760         },
 761         { }
 762 };
 763
 764 /*
 765  * Some Wistron based laptops need us to explicitly enable the 'Dritek
 766  * keyboard extension' to make their extra keys start generating scancodes.
 767  * Originally, this was just confined to older laptops, but a few Acer laptops
 768  * have turned up in 2007 that also need this again.
 769  */
 770 static const struct dmi_system_id __initconst i8042_dmi_dritek_table[] = {
 771         {
 772                 /* Acer Aspire 5100 */
 773                 .matches = {
 774                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 775                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
 776                 },
 777         },
 778         {
 779                 /* Acer Aspire 5610 */
 780                 .matches = {
 781                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 782                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
 783                 },
 784         },
 785         {
 786                 /* Acer Aspire 5630 */
 787                 .matches = {
 788                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 789                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
 790                 },
 791         },
 792         {
 793                 /* Acer Aspire 5650 */
 794                 .matches = {
 795                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 796                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
 797                 },
 798         },
 799         {
 800                 /* Acer Aspire 5680 */
 801                 .matches = {
 802                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 803                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
 804                 },
 805         },
 806         {
 807                 /* Acer Aspire 5720 */
 808                 .matches = {
 809                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 810                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5720"),
 811                 },
 812         },
 813         {
 814                 /* Acer Aspire 9110 */
 815                 .matches = {
 816                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 817                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
 818                 },
 819         },
 820         {
 821                 /* Acer TravelMate 660 */
 822                 .matches = {
 823                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 824                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 660"),
 825                 },
 826         },
 827         {
 828                 /* Acer TravelMate 2490 */
 829                 .matches = {
 830                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 831                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
 832                 },
 833         },
 834         {
 835                 /* Acer TravelMate 4280 */
 836                 .matches = {
 837                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 838                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4280"),
 839                 },
 840         },
 841         { }
 842 };
 843
 844 /*
 845  * Some laptops need keyboard reset before probing for the trackpad to get
 846  * it detected, initialised & finally work.
 847  */
 848 static const struct dmi_system_id __initconst i8042_dmi_kbdreset_table[] = {
 849         {
 850                 /* Gigabyte P35 v2 - Elantech touchpad */
 851                 .matches = {
 852                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 853                         DMI_MATCH(DMI_PRODUCT_NAME, "P35V2"),
 854                 },
 855         },
 856                 {
 857                 /* Aorus branded Gigabyte X3 Plus - Elantech touchpad */
 858                 .matches = {
 859                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 860                         DMI_MATCH(DMI_PRODUCT_NAME, "X3"),
 861                 },
 862         },
 863         {
 864                 /* Gigabyte P34 - Elantech touchpad */
 865                 .matches = {
 866                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 867                         DMI_MATCH(DMI_PRODUCT_NAME, "P34"),
 868                 },
 869         },
 870         {
 871                 /* Gigabyte P57 - Elantech touchpad */
 872                 .matches = {
 873                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 874                         DMI_MATCH(DMI_PRODUCT_NAME, "P57"),
 875                 },
 876         },
 877         {
 878                 /* Schenker XMG C504 - Elantech touchpad */
 879                 .matches = {
 880                         DMI_MATCH(DMI_SYS_VENDOR, "XMG"),
 881                         DMI_MATCH(DMI_PRODUCT_NAME, "C504"),
 882                 },
 883         },
 884         { }
 885 };
 886
 887 #endif /* CONFIG_X86 */
 888
 889 #ifdef CONFIG_PNP
 890 #include <linux/pnp.h>
 891
 892 static bool i8042_pnp_kbd_registered;
 893 static unsigned int i8042_pnp_kbd_devices;
 894 static bool i8042_pnp_aux_registered;
 895 static unsigned int i8042_pnp_aux_devices;
 896
 897 static int i8042_pnp_command_reg;
 898 static int i8042_pnp_data_reg;
 899 static int i8042_pnp_kbd_irq;
 900 static int i8042_pnp_aux_irq;
 901
 902 static char i8042_pnp_kbd_name[32];
 903 static char i8042_pnp_aux_name[32];
 904
 905 static void i8042_pnp_id_to_string(struct pnp_id *id, char *dst, int dst_size)
 906 {
 907         strlcpy(dst, "PNP:", dst_size);
 908
 909         while (id) {
 910                 strlcat(dst, " ", dst_size);
 911                 strlcat(dst, id->id, dst_size);
 912                 id = id->next;
 913         }
 914 }
 915
 916 static int i8042_pnp_kbd_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
 917 {
 918         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
 919                 i8042_pnp_data_reg = pnp_port_start(dev,0);
 920
 921         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
 922                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
 923
 924         if (pnp_irq_valid(dev,0))
 925                 i8042_pnp_kbd_irq = pnp_irq(dev, 0);
 926
 927         strlcpy(i8042_pnp_kbd_name, did->id, sizeof(i8042_pnp_kbd_name));
 928         if (strlen(pnp_dev_name(dev))) {
 929                 strlcat(i8042_pnp_kbd_name, ":", sizeof(i8042_pnp_kbd_name));
 930                 strlcat(i8042_pnp_kbd_name, pnp_dev_name(dev), sizeof(i8042_pnp_kbd_name));
 931         }
 932         i8042_pnp_id_to_string(dev->id, i8042_kbd_firmware_id,
 933                                sizeof(i8042_kbd_firmware_id));
 934
 935         /* Keyboard ports are always supposed to be wakeup-enabled */
 936         device_set_wakeup_enable(&dev->dev, true);
 937
 938         i8042_pnp_kbd_devices++;
 939         return 0;
 940 }
 941
 942 static int i8042_pnp_aux_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
 943 {
 944         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
 945                 i8042_pnp_data_reg = pnp_port_start(dev,0);
 946
 947         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
 948                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
 949
 950         if (pnp_irq_valid(dev, 0))
 951                 i8042_pnp_aux_irq = pnp_irq(dev, 0);
 952
 953         strlcpy(i8042_pnp_aux_name, did->id, sizeof(i8042_pnp_aux_name));
 954         if (strlen(pnp_dev_name(dev))) {
 955                 strlcat(i8042_pnp_aux_name, ":", sizeof(i8042_pnp_aux_name));
 956                 strlcat(i8042_pnp_aux_name, pnp_dev_name(dev), sizeof(i8042_pnp_aux_name));
 957         }
 958         i8042_pnp_id_to_string(dev->id, i8042_aux_firmware_id,
 959                                sizeof(i8042_aux_firmware_id));
 960
 961         i8042_pnp_aux_devices++;
 962         return 0;
 963 }
 964
 965 static const struct pnp_device_id pnp_kbd_devids[] = {
 966         { .id = "PNP0300", .driver_data = 0 },
 967         { .id = "PNP0301", .driver_data = 0 },
 968         { .id = "PNP0302", .driver_data = 0 },
 969         { .id = "PNP0303", .driver_data = 0 },
 970         { .id = "PNP0304", .driver_data = 0 },
 971         { .id = "PNP0305", .driver_data = 0 },
 972         { .id = "PNP0306", .driver_data = 0 },
 973         { .id = "PNP0309", .driver_data = 0 },
 974         { .id = "PNP030a", .driver_data = 0 },
 975         { .id = "PNP030b", .driver_data = 0 },
 976         { .id = "PNP0320", .driver_data = 0 },
 977         { .id = "PNP0343", .driver_data = 0 },
 978         { .id = "PNP0344", .driver_data = 0 },
 979         { .id = "PNP0345", .driver_data = 0 },
 980         { .id = "CPQA0D7", .driver_data = 0 },
 981         { .id = "", },
 982 };
 983 MODULE_DEVICE_TABLE(pnp, pnp_kbd_devids);
 984
 985 static struct pnp_driver i8042_pnp_kbd_driver = {
 986         .name           = "i8042 kbd",
 987         .id_table       = pnp_kbd_devids,
 988         .probe          = i8042_pnp_kbd_probe,
 989         .driver         = {
 990                 .probe_type = PROBE_FORCE_SYNCHRONOUS,
 991                 .suppress_bind_attrs = true,
 992         },
 993 };
 994
 995 static const struct pnp_device_id pnp_aux_devids[] = {
 996         { .id = "AUI0200", .driver_data = 0 },
 997         { .id = "FJC6000", .driver_data = 0 },
 998         { .id = "FJC6001", .driver_data = 0 },
 999         { .id = "PNP0f03", .driver_data = 0 },
1000         { .id = "PNP0f0b", .driver_data = 0 },
1001         { .id = "PNP0f0e", .driver_data = 0 },
1002         { .id = "PNP0f12", .driver_data = 0 },
1003         { .id = "PNP0f13", .driver_data = 0 },
1004         { .id = "PNP0f19", .driver_data = 0 },
1005         { .id = "PNP0f1c", .driver_data = 0 },
1006         { .id = "SYN0801", .driver_data = 0 },
1007         { .id = "", },
1008 };
1009 MODULE_DEVICE_TABLE(pnp, pnp_aux_devids);
1010
1011 static struct pnp_driver i8042_pnp_aux_driver = {
1012         .name           = "i8042 aux",
1013         .id_table       = pnp_aux_devids,
1014         .probe          = i8042_pnp_aux_probe,
1015         .driver         = {
1016                 .probe_type = PROBE_FORCE_SYNCHRONOUS,
1017                 .suppress_bind_attrs = true,
1018         },
1019 };
1020
1021 static void i8042_pnp_exit(void)
1022 {
1023         if (i8042_pnp_kbd_registered) {
1024                 i8042_pnp_kbd_registered = false;
1025                 pnp_unregister_driver(&i8042_pnp_kbd_driver);
1026         }
1027
1028         if (i8042_pnp_aux_registered) {
1029                 i8042_pnp_aux_registered = false;
1030                 pnp_unregister_driver(&i8042_pnp_aux_driver);
1031         }
1032 }
1033
1034 static int __init i8042_pnp_init(void)
1035 {
1036         char kbd_irq_str[4] = { 0 }, aux_irq_str[4] = { 0 };
1037         bool pnp_data_busted = false;
1038         int err;
1039
1040 #ifdef CONFIG_X86
1041         if (dmi_check_system(i8042_dmi_nopnp_table))
1042                 i8042_nopnp = true;
1043 #endif
1044
1045         if (i8042_nopnp) {
1046                 pr_info("PNP detection disabled\n");
1047                 return 0;
1048         }
1049
1050         err = pnp_register_driver(&i8042_pnp_kbd_driver);
1051         if (!err)
1052                 i8042_pnp_kbd_registered = true;
1053
1054         err = pnp_register_driver(&i8042_pnp_aux_driver);
1055         if (!err)
1056                 i8042_pnp_aux_registered = true;
1057
1058         if (!i8042_pnp_kbd_devices && !i8042_pnp_aux_devices) {
1059                 i8042_pnp_exit();
1060 #if defined(__ia64__)
1061                 return -ENODEV;
1062 #else
1063                 pr_info("PNP: No PS/2 controller found.\n");
1064                 if (x86_platform.legacy.i8042 !=
1065                                 X86_LEGACY_I8042_EXPECTED_PRESENT)
1066                         return -ENODEV;
1067                 pr_info("Probing ports directly.\n");
1068                 return 0;
1069 #endif
1070         }
1071
1072         if (i8042_pnp_kbd_devices)
1073                 snprintf(kbd_irq_str, sizeof(kbd_irq_str),
1074                         "%d", i8042_pnp_kbd_irq);
1075         if (i8042_pnp_aux_devices)
1076                 snprintf(aux_irq_str, sizeof(aux_irq_str),
1077                         "%d", i8042_pnp_aux_irq);
1078
1079         pr_info("PNP: PS/2 Controller [%s%s%s] at %#x,%#x irq %s%s%s\n",
1080                 i8042_pnp_kbd_name, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
1081                 i8042_pnp_aux_name,
1082                 i8042_pnp_data_reg, i8042_pnp_command_reg,
1083                 kbd_irq_str, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
1084                 aux_irq_str);
1085
1086 #if defined(__ia64__)
1087         if (!i8042_pnp_kbd_devices)
1088                 i8042_nokbd = true;
1089         if (!i8042_pnp_aux_devices)
1090                 i8042_noaux = true;
1091 #endif
1092
1093         if (((i8042_pnp_data_reg & ~0xf) == (i8042_data_reg & ~0xf) &&
1094               i8042_pnp_data_reg != i8042_data_reg) ||
1095             !i8042_pnp_data_reg) {
1096                 pr_warn("PNP: PS/2 controller has invalid data port %#x; using default %#x\n",
1097                         i8042_pnp_data_reg, i8042_data_reg);
1098                 i8042_pnp_data_reg = i8042_data_reg;
1099                 pnp_data_busted = true;
1100         }
1101
1102         if (((i8042_pnp_command_reg & ~0xf) == (i8042_command_reg & ~0xf) &&
1103               i8042_pnp_command_reg != i8042_command_reg) ||
1104             !i8042_pnp_command_reg) {
1105                 pr_warn("PNP: PS/2 controller has invalid command port %#x; using default %#x\n",
1106                         i8042_pnp_command_reg, i8042_command_reg);
1107                 i8042_pnp_command_reg = i8042_command_reg;
1108                 pnp_data_busted = true;
1109         }
1110
1111         if (!i8042_nokbd && !i8042_pnp_kbd_irq) {
1112                 pr_warn("PNP: PS/2 controller doesn't have KBD irq; using default %d\n",
1113                         i8042_kbd_irq);
1114                 i8042_pnp_kbd_irq = i8042_kbd_irq;
1115                 pnp_data_busted = true;
1116         }
1117
1118         if (!i8042_noaux && !i8042_pnp_aux_irq) {
1119                 if (!pnp_data_busted && i8042_pnp_kbd_irq) {
1120                         pr_warn("PNP: PS/2 appears to have AUX port disabled, "
1121                                 "if this is incorrect please boot with i8042.nopnp\n");
1122                         i8042_noaux = true;
1123                 } else {
1124                         pr_warn("PNP: PS/2 controller doesn't have AUX irq; using default %d\n",
1125                                 i8042_aux_irq);
1126                         i8042_pnp_aux_irq = i8042_aux_irq;
1127                 }
1128         }
1129
1130         i8042_data_reg = i8042_pnp_data_reg;
1131         i8042_command_reg = i8042_pnp_command_reg;
1132         i8042_kbd_irq = i8042_pnp_kbd_irq;
1133         i8042_aux_irq = i8042_pnp_aux_irq;
1134
1135 #ifdef CONFIG_X86
1136         i8042_bypass_aux_irq_test = !pnp_data_busted &&
1137                                     dmi_check_system(i8042_dmi_laptop_table);
1138 #endif
1139
1140         return 0;
1141 }
1142
1143 #else  /* !CONFIG_PNP */
1144 static inline int i8042_pnp_init(void) { return 0; }
1145 static inline void i8042_pnp_exit(void) { }
1146 #endif /* CONFIG_PNP */
1147
1148 static int __init i8042_platform_init(void)
1149 {
1150         int retval;
1151
1152 #ifdef CONFIG_X86
1153         u8 a20_on = 0xdf;
1154         /* Just return if platform does not have i8042 controller */
1155         if (x86_platform.legacy.i8042 == X86_LEGACY_I8042_PLATFORM_ABSENT)
1156                 return -ENODEV;
1157 #endif
1158
1159 /*
1160  * On ix86 platforms touching the i8042 data register region can do really
1161  * bad things. Because of this the region is always reserved on ix86 boxes.
1162  *
1163  *      if (!request_region(I8042_DATA_REG, 16, "i8042"))
1164  *              return -EBUSY;
1165  */
1166
1167         i8042_kbd_irq = I8042_MAP_IRQ(1);
1168         i8042_aux_irq = I8042_MAP_IRQ(12);
1169
1170         retval = i8042_pnp_init();
1171         if (retval)
1172                 return retval;
1173
1174 #if defined(__ia64__)
1175         i8042_reset = I8042_RESET_ALWAYS;
1176 #endif
1177
1178 #ifdef CONFIG_X86
1179         /* Honor module parameter when value is not default */
1180         if (i8042_reset == I8042_RESET_DEFAULT) {
1181                 if (dmi_check_system(i8042_dmi_reset_table))
1182                         i8042_reset = I8042_RESET_ALWAYS;
1183
1184                 if (dmi_check_system(i8042_dmi_noselftest_table))
1185                         i8042_reset = I8042_RESET_NEVER;
1186         }
1187
1188         if (dmi_check_system(i8042_dmi_noloop_table))
1189                 i8042_noloop = true;
1190
1191         if (dmi_check_system(i8042_dmi_nomux_table))
1192                 i8042_nomux = true;
1193
1194         if (dmi_check_system(i8042_dmi_forcemux_table))
1195                 i8042_nomux = false;
1196
1197         if (dmi_check_system(i8042_dmi_notimeout_table))
1198                 i8042_notimeout = true;
1199
1200         if (dmi_check_system(i8042_dmi_dritek_table))
1201                 i8042_dritek = true;
1202
1203         if (dmi_check_system(i8042_dmi_kbdreset_table))
1204                 i8042_kbdreset = true;
1205
1206         /*
1207          * A20 was already enabled during early kernel init. But some buggy
1208          * BIOSes (in MSI Laptops) require A20 to be enabled using 8042 to
1209          * resume from S3. So we do it here and hope that nothing breaks.
1210          */
1211         i8042_command(&a20_on, 0x10d1);
1212         i8042_command(NULL, 0x00ff);    /* Null command for SMM firmware */
1213 #endif /* CONFIG_X86 */
1214
1215         return retval;
1216 }
1217
1218 static inline void i8042_platform_exit(void)
1219 {
1220         i8042_pnp_exit();
1221 }
1222
1223 #endif /* _I8042_X86IA64IO_H */