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                 /* Lenovo XiaoXin Air 12 */
 434                 .matches = {
 435                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 436                         DMI_MATCH(DMI_PRODUCT_NAME, "80UN"),
 437                 },
 438         },
 439         {
 440                 .matches = {
 441                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 442                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
 443                 },
 444         },
 445         {
 446                 /* Acer Aspire 5710 */
 447                 .matches = {
 448                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 449                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5710"),
 450                 },
 451         },
 452         {
 453                 /* Acer Aspire 7738 */
 454                 .matches = {
 455                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 456                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7738"),
 457                 },
 458         },
 459         {
 460                 /* Gericom Bellagio */
 461                 .matches = {
 462                         DMI_MATCH(DMI_SYS_VENDOR, "Gericom"),
 463                         DMI_MATCH(DMI_PRODUCT_NAME, "N34AS6"),
 464                 },
 465         },
 466         {
 467                 /* IBM 2656 */
 468                 .matches = {
 469                         DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
 470                         DMI_MATCH(DMI_PRODUCT_NAME, "2656"),
 471                 },
 472         },
 473         {
 474                 /* Dell XPS M1530 */
 475                 .matches = {
 476                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 477                         DMI_MATCH(DMI_PRODUCT_NAME, "XPS M1530"),
 478                 },
 479         },
 480         {
 481                 /* Compal HEL80I */
 482                 .matches = {
 483                         DMI_MATCH(DMI_SYS_VENDOR, "COMPAL"),
 484                         DMI_MATCH(DMI_PRODUCT_NAME, "HEL80I"),
 485                 },
 486         },
 487         {
 488                 /* Dell Vostro 1510 */
 489                 .matches = {
 490                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 491                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro1510"),
 492                 },
 493         },
 494         {
 495                 /* Acer Aspire 5536 */
 496                 .matches = {
 497                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 498                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5536"),
 499                         DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
 500                 },
 501         },
 502         {
 503                 /* Dell Vostro V13 */
 504                 .matches = {
 505                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 506                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
 507                 },
 508         },
 509         {
 510                 /* Newer HP Pavilion dv4 models */
 511                 .matches = {
 512                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 513                         DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
 514                 },
 515         },
 516         {
 517                 /* Asus X450LCP */
 518                 .matches = {
 519                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 520                         DMI_MATCH(DMI_PRODUCT_NAME, "X450LCP"),
 521                 },
 522         },
 523         {
 524                 /* Avatar AVIU-145A6 */
 525                 .matches = {
 526                         DMI_MATCH(DMI_SYS_VENDOR, "Intel"),
 527                         DMI_MATCH(DMI_PRODUCT_NAME, "IC4I"),
 528                 },
 529         },
 530         {
 531                 /* TUXEDO BU1406 */
 532                 .matches = {
 533                         DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
 534                         DMI_MATCH(DMI_PRODUCT_NAME, "N24_25BU"),
 535                 },
 536         },
 537         {
 538                 /* Lenovo LaVie Z */
 539                 .matches = {
 540                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 541                         DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo LaVie Z"),
 542                 },
 543         },
 544         {
 545                 /*
 546                  * Acer Aspire 5738z
 547                  * Touchpad stops working in mux mode when dis- + re-enabled
 548                  * with the touchpad enable/disable toggle hotkey
 549                  */
 550                 .matches = {
 551                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 552                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5738"),
 553                 },
 554         },
 555         {
 556                 /* Entroware Proteus */
 557                 .matches = {
 558                         DMI_MATCH(DMI_SYS_VENDOR, "Entroware"),
 559                         DMI_MATCH(DMI_PRODUCT_NAME, "Proteus"),
 560                         DMI_MATCH(DMI_PRODUCT_VERSION, "EL07R4"),
 561                 },
 562         },
 563         { }
 564 };
 565
 566 static const struct dmi_system_id i8042_dmi_forcemux_table[] __initconst = {
 567         {
 568                 /*
 569                  * Sony Vaio VGN-CS series require MUX or the touch sensor
 570                  * buttons will disturb touchpad operation
 571                  */
 572                 .matches = {
 573                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 574                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-CS"),
 575                 },
 576         },
 577         { }
 578 };
 579
 580 /*
 581  * On some Asus laptops, just running self tests cause problems.
 582  */
 583 static const struct dmi_system_id i8042_dmi_noselftest_table[] = {
 584         {
 585                 .matches = {
 586                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 587                         DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
 588                 },
 589         },
 590         { }
 591 };
 592 static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = {
 593         {
 594                 /* MSI Wind U-100 */
 595                 .matches = {
 596                         DMI_MATCH(DMI_BOARD_NAME, "U-100"),
 597                         DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
 598                 },
 599         },
 600         {
 601                 /* LG Electronics X110 */
 602                 .matches = {
 603                         DMI_MATCH(DMI_BOARD_NAME, "X110"),
 604                         DMI_MATCH(DMI_BOARD_VENDOR, "LG Electronics Inc."),
 605                 },
 606         },
 607         {
 608                 /* Acer Aspire One 150 */
 609                 .matches = {
 610                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 611                         DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
 612                 },
 613         },
 614         {
 615                 /* Advent 4211 */
 616                 .matches = {
 617                         DMI_MATCH(DMI_SYS_VENDOR, "DIXONSXP"),
 618                         DMI_MATCH(DMI_PRODUCT_NAME, "Advent 4211"),
 619                 },
 620         },
 621         {
 622                 /* Medion Akoya Mini E1210 */
 623                 .matches = {
 624                         DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
 625                         DMI_MATCH(DMI_PRODUCT_NAME, "E1210"),
 626                 },
 627         },
 628         {
 629                 /* Medion Akoya E1222 */
 630                 .matches = {
 631                         DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
 632                         DMI_MATCH(DMI_PRODUCT_NAME, "E122X"),
 633                 },
 634         },
 635         {
 636                 /* Mivvy M310 */
 637                 .matches = {
 638                         DMI_MATCH(DMI_SYS_VENDOR, "VIOOO"),
 639                         DMI_MATCH(DMI_PRODUCT_NAME, "N10"),
 640                 },
 641         },
 642         {
 643                 /* Dell Vostro 1320 */
 644                 .matches = {
 645                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 646                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1320"),
 647                 },
 648         },
 649         {
 650                 /* Dell Vostro 1520 */
 651                 .matches = {
 652                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 653                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1520"),
 654                 },
 655         },
 656         {
 657                 /* Dell Vostro 1720 */
 658                 .matches = {
 659                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 660                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1720"),
 661                 },
 662         },
 663         {
 664                 /* Lenovo Ideapad U455 */
 665                 .matches = {
 666                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 667                         DMI_MATCH(DMI_PRODUCT_NAME, "20046"),
 668                 },
 669         },
 670         {
 671                 /* Lenovo ThinkPad L460 */
 672                 .matches = {
 673                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 674                         DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L460"),
 675                 },
 676         },
 677         {
 678                 /* Clevo P650RS, 650RP6, Sager NP8152-S, and others */
 679                 .matches = {
 680                         DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
 681                         DMI_MATCH(DMI_PRODUCT_NAME, "P65xRP"),
 682                 },
 683         },
 684         {
 685                 /* Lenovo ThinkPad Twist S230u */
 686                 .matches = {
 687                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 688                         DMI_MATCH(DMI_PRODUCT_NAME, "33474HU"),
 689                 },
 690         },
 691         {
 692                 /* Entroware Proteus */
 693                 .matches = {
 694                         DMI_MATCH(DMI_SYS_VENDOR, "Entroware"),
 695                         DMI_MATCH(DMI_PRODUCT_NAME, "Proteus"),
 696                         DMI_MATCH(DMI_PRODUCT_VERSION, "EL07R4"),
 697                 },
 698         },
 699         { }
 700 };
 701
 702 #ifdef CONFIG_PNP
 703 static const struct dmi_system_id __initconst i8042_dmi_nopnp_table[] = {
 704         {
 705                 /* Intel MBO Desktop D845PESV */
 706                 .matches = {
 707                         DMI_MATCH(DMI_BOARD_NAME, "D845PESV"),
 708                         DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
 709                 },
 710         },
 711         {
 712                 /*
 713                  * Intel NUC D54250WYK - does not have i8042 controller but
 714                  * declares PS/2 devices in DSDT.
 715                  */
 716                 .matches = {
 717                         DMI_MATCH(DMI_BOARD_NAME, "D54250WYK"),
 718                         DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
 719                 },
 720         },
 721         {
 722                 /* MSI Wind U-100 */
 723                 .matches = {
 724                         DMI_MATCH(DMI_BOARD_NAME, "U-100"),
 725                         DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
 726                 },
 727         },
 728         { }
 729 };
 730
 731 static const struct dmi_system_id __initconst i8042_dmi_laptop_table[] = {
 732         {
 733                 .matches = {
 734                         DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
 735                 },
 736         },
 737         {
 738                 .matches = {
 739                         DMI_MATCH(DMI_CHASSIS_TYPE, "9"), /* Laptop */
 740                 },
 741         },
 742         {
 743                 .matches = {
 744                         DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
 745                 },
 746         },
 747         {
 748                 .matches = {
 749                         DMI_MATCH(DMI_CHASSIS_TYPE, "14"), /* Sub-Notebook */
 750                 },
 751         },
 752         { }
 753 };
 754 #endif
 755
 756 static const struct dmi_system_id __initconst i8042_dmi_notimeout_table[] = {
 757         {
 758                 /* Dell Vostro V13 */
 759                 .matches = {
 760                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 761                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
 762                 },
 763         },
 764         {
 765                 /* Newer HP Pavilion dv4 models */
 766                 .matches = {
 767                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 768                         DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
 769                 },
 770         },
 771         {
 772                 /* Fujitsu A544 laptop */
 773                 /* https://bugzilla.redhat.com/show_bug.cgi?id=1111138 */
 774                 .matches = {
 775                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 776                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK A544"),
 777                 },
 778         },
 779         {
 780                 /* Fujitsu AH544 laptop */
 781                 /* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
 782                 .matches = {
 783                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 784                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK AH544"),
 785                 },
 786         },
 787         {
 788                 /* Fujitsu U574 laptop */
 789                 /* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
 790                 .matches = {
 791                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 792                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U574"),
 793                 },
 794         },
 795         {
 796                 /* Fujitsu UH554 laptop */
 797                 .matches = {
 798                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 799                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK UH544"),
 800                 },
 801         },
 802         { }
 803 };
 804
 805 /*
 806  * Some Wistron based laptops need us to explicitly enable the 'Dritek
 807  * keyboard extension' to make their extra keys start generating scancodes.
 808  * Originally, this was just confined to older laptops, but a few Acer laptops
 809  * have turned up in 2007 that also need this again.
 810  */
 811 static const struct dmi_system_id __initconst i8042_dmi_dritek_table[] = {
 812         {
 813                 /* Acer Aspire 5100 */
 814                 .matches = {
 815                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 816                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
 817                 },
 818         },
 819         {
 820                 /* Acer Aspire 5610 */
 821                 .matches = {
 822                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 823                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
 824                 },
 825         },
 826         {
 827                 /* Acer Aspire 5630 */
 828                 .matches = {
 829                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 830                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
 831                 },
 832         },
 833         {
 834                 /* Acer Aspire 5650 */
 835                 .matches = {
 836                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 837                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
 838                 },
 839         },
 840         {
 841                 /* Acer Aspire 5680 */
 842                 .matches = {
 843                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 844                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
 845                 },
 846         },
 847         {
 848                 /* Acer Aspire 5720 */
 849                 .matches = {
 850                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 851                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5720"),
 852                 },
 853         },
 854         {
 855                 /* Acer Aspire 9110 */
 856                 .matches = {
 857                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 858                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
 859                 },
 860         },
 861         {
 862                 /* Acer TravelMate 660 */
 863                 .matches = {
 864                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 865                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 660"),
 866                 },
 867         },
 868         {
 869                 /* Acer TravelMate 2490 */
 870                 .matches = {
 871                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 872                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
 873                 },
 874         },
 875         {
 876                 /* Acer TravelMate 4280 */
 877                 .matches = {
 878                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 879                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4280"),
 880                 },
 881         },
 882         { }
 883 };
 884
 885 /*
 886  * Some laptops need keyboard reset before probing for the trackpad to get
 887  * it detected, initialised & finally work.
 888  */
 889 static const struct dmi_system_id __initconst i8042_dmi_kbdreset_table[] = {
 890         {
 891                 /* Gigabyte P35 v2 - Elantech touchpad */
 892                 .matches = {
 893                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 894                         DMI_MATCH(DMI_PRODUCT_NAME, "P35V2"),
 895                 },
 896         },
 897                 {
 898                 /* Aorus branded Gigabyte X3 Plus - Elantech touchpad */
 899                 .matches = {
 900                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 901                         DMI_MATCH(DMI_PRODUCT_NAME, "X3"),
 902                 },
 903         },
 904         {
 905                 /* Gigabyte P34 - Elantech touchpad */
 906                 .matches = {
 907                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 908                         DMI_MATCH(DMI_PRODUCT_NAME, "P34"),
 909                 },
 910         },
 911         {
 912                 /* Gigabyte P57 - Elantech touchpad */
 913                 .matches = {
 914                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 915                         DMI_MATCH(DMI_PRODUCT_NAME, "P57"),
 916                 },
 917         },
 918         {
 919                 /* Schenker XMG C504 - Elantech touchpad */
 920                 .matches = {
 921                         DMI_MATCH(DMI_SYS_VENDOR, "XMG"),
 922                         DMI_MATCH(DMI_PRODUCT_NAME, "C504"),
 923                 },
 924         },
 925         { }
 926 };
 927
 928 #endif /* CONFIG_X86 */
 929
 930 #ifdef CONFIG_PNP
 931 #include <linux/pnp.h>
 932
 933 static bool i8042_pnp_kbd_registered;
 934 static unsigned int i8042_pnp_kbd_devices;
 935 static bool i8042_pnp_aux_registered;
 936 static unsigned int i8042_pnp_aux_devices;
 937
 938 static int i8042_pnp_command_reg;
 939 static int i8042_pnp_data_reg;
 940 static int i8042_pnp_kbd_irq;
 941 static int i8042_pnp_aux_irq;
 942
 943 static char i8042_pnp_kbd_name[32];
 944 static char i8042_pnp_aux_name[32];
 945
 946 static void i8042_pnp_id_to_string(struct pnp_id *id, char *dst, int dst_size)
 947 {
 948         strlcpy(dst, "PNP:", dst_size);
 949
 950         while (id) {
 951                 strlcat(dst, " ", dst_size);
 952                 strlcat(dst, id->id, dst_size);
 953                 id = id->next;
 954         }
 955 }
 956
 957 static int i8042_pnp_kbd_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
 958 {
 959         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
 960                 i8042_pnp_data_reg = pnp_port_start(dev,0);
 961
 962         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
 963                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
 964
 965         if (pnp_irq_valid(dev,0))
 966                 i8042_pnp_kbd_irq = pnp_irq(dev, 0);
 967
 968         strlcpy(i8042_pnp_kbd_name, did->id, sizeof(i8042_pnp_kbd_name));
 969         if (strlen(pnp_dev_name(dev))) {
 970                 strlcat(i8042_pnp_kbd_name, ":", sizeof(i8042_pnp_kbd_name));
 971                 strlcat(i8042_pnp_kbd_name, pnp_dev_name(dev), sizeof(i8042_pnp_kbd_name));
 972         }
 973         i8042_pnp_id_to_string(dev->id, i8042_kbd_firmware_id,
 974                                sizeof(i8042_kbd_firmware_id));
 975
 976         /* Keyboard ports are always supposed to be wakeup-enabled */
 977         device_set_wakeup_enable(&dev->dev, true);
 978
 979         i8042_pnp_kbd_devices++;
 980         return 0;
 981 }
 982
 983 static int i8042_pnp_aux_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
 984 {
 985         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
 986                 i8042_pnp_data_reg = pnp_port_start(dev,0);
 987
 988         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
 989                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
 990
 991         if (pnp_irq_valid(dev, 0))
 992                 i8042_pnp_aux_irq = pnp_irq(dev, 0);
 993
 994         strlcpy(i8042_pnp_aux_name, did->id, sizeof(i8042_pnp_aux_name));
 995         if (strlen(pnp_dev_name(dev))) {
 996                 strlcat(i8042_pnp_aux_name, ":", sizeof(i8042_pnp_aux_name));
 997                 strlcat(i8042_pnp_aux_name, pnp_dev_name(dev), sizeof(i8042_pnp_aux_name));
 998         }
 999         i8042_pnp_id_to_string(dev->id, i8042_aux_firmware_id,
1000                                sizeof(i8042_aux_firmware_id));
1001
1002         i8042_pnp_aux_devices++;
1003         return 0;
1004 }
1005
1006 static const struct pnp_device_id pnp_kbd_devids[] = {
1007         { .id = "PNP0300", .driver_data = 0 },
1008         { .id = "PNP0301", .driver_data = 0 },
1009         { .id = "PNP0302", .driver_data = 0 },
1010         { .id = "PNP0303", .driver_data = 0 },
1011         { .id = "PNP0304", .driver_data = 0 },
1012         { .id = "PNP0305", .driver_data = 0 },
1013         { .id = "PNP0306", .driver_data = 0 },
1014         { .id = "PNP0309", .driver_data = 0 },
1015         { .id = "PNP030a", .driver_data = 0 },
1016         { .id = "PNP030b", .driver_data = 0 },
1017         { .id = "PNP0320", .driver_data = 0 },
1018         { .id = "PNP0343", .driver_data = 0 },
1019         { .id = "PNP0344", .driver_data = 0 },
1020         { .id = "PNP0345", .driver_data = 0 },
1021         { .id = "CPQA0D7", .driver_data = 0 },
1022         { .id = "", },
1023 };
1024 MODULE_DEVICE_TABLE(pnp, pnp_kbd_devids);
1025
1026 static struct pnp_driver i8042_pnp_kbd_driver = {
1027         .name           = "i8042 kbd",
1028         .id_table       = pnp_kbd_devids,
1029         .probe          = i8042_pnp_kbd_probe,
1030         .driver         = {
1031                 .probe_type = PROBE_FORCE_SYNCHRONOUS,
1032                 .suppress_bind_attrs = true,
1033         },
1034 };
1035
1036 static const struct pnp_device_id pnp_aux_devids[] = {
1037         { .id = "AUI0200", .driver_data = 0 },
1038         { .id = "FJC6000", .driver_data = 0 },
1039         { .id = "FJC6001", .driver_data = 0 },
1040         { .id = "PNP0f03", .driver_data = 0 },
1041         { .id = "PNP0f0b", .driver_data = 0 },
1042         { .id = "PNP0f0e", .driver_data = 0 },
1043         { .id = "PNP0f12", .driver_data = 0 },
1044         { .id = "PNP0f13", .driver_data = 0 },
1045         { .id = "PNP0f19", .driver_data = 0 },
1046         { .id = "PNP0f1c", .driver_data = 0 },
1047         { .id = "SYN0801", .driver_data = 0 },
1048         { .id = "", },
1049 };
1050 MODULE_DEVICE_TABLE(pnp, pnp_aux_devids);
1051
1052 static struct pnp_driver i8042_pnp_aux_driver = {
1053         .name           = "i8042 aux",
1054         .id_table       = pnp_aux_devids,
1055         .probe          = i8042_pnp_aux_probe,
1056         .driver         = {
1057                 .probe_type = PROBE_FORCE_SYNCHRONOUS,
1058                 .suppress_bind_attrs = true,
1059         },
1060 };
1061
1062 static void i8042_pnp_exit(void)
1063 {
1064         if (i8042_pnp_kbd_registered) {
1065                 i8042_pnp_kbd_registered = false;
1066                 pnp_unregister_driver(&i8042_pnp_kbd_driver);
1067         }
1068
1069         if (i8042_pnp_aux_registered) {
1070                 i8042_pnp_aux_registered = false;
1071                 pnp_unregister_driver(&i8042_pnp_aux_driver);
1072         }
1073 }
1074
1075 static int __init i8042_pnp_init(void)
1076 {
1077         char kbd_irq_str[4] = { 0 }, aux_irq_str[4] = { 0 };
1078         bool pnp_data_busted = false;
1079         int err;
1080
1081 #ifdef CONFIG_X86
1082         if (dmi_check_system(i8042_dmi_nopnp_table))
1083                 i8042_nopnp = true;
1084 #endif
1085
1086         if (i8042_nopnp) {
1087                 pr_info("PNP detection disabled\n");
1088                 return 0;
1089         }
1090
1091         err = pnp_register_driver(&i8042_pnp_kbd_driver);
1092         if (!err)
1093                 i8042_pnp_kbd_registered = true;
1094
1095         err = pnp_register_driver(&i8042_pnp_aux_driver);
1096         if (!err)
1097                 i8042_pnp_aux_registered = true;
1098
1099         if (!i8042_pnp_kbd_devices && !i8042_pnp_aux_devices) {
1100                 i8042_pnp_exit();
1101 #if defined(__ia64__)
1102                 return -ENODEV;
1103 #else
1104                 pr_info("PNP: No PS/2 controller found.\n");
1105                 if (x86_platform.legacy.i8042 !=
1106                                 X86_LEGACY_I8042_EXPECTED_PRESENT)
1107                         return -ENODEV;
1108                 pr_info("Probing ports directly.\n");
1109                 return 0;
1110 #endif
1111         }
1112
1113         if (i8042_pnp_kbd_devices)
1114                 snprintf(kbd_irq_str, sizeof(kbd_irq_str),
1115                         "%d", i8042_pnp_kbd_irq);
1116         if (i8042_pnp_aux_devices)
1117                 snprintf(aux_irq_str, sizeof(aux_irq_str),
1118                         "%d", i8042_pnp_aux_irq);
1119
1120         pr_info("PNP: PS/2 Controller [%s%s%s] at %#x,%#x irq %s%s%s\n",
1121                 i8042_pnp_kbd_name, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
1122                 i8042_pnp_aux_name,
1123                 i8042_pnp_data_reg, i8042_pnp_command_reg,
1124                 kbd_irq_str, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
1125                 aux_irq_str);
1126
1127 #if defined(__ia64__)
1128         if (!i8042_pnp_kbd_devices)
1129                 i8042_nokbd = true;
1130         if (!i8042_pnp_aux_devices)
1131                 i8042_noaux = true;
1132 #endif
1133
1134         if (((i8042_pnp_data_reg & ~0xf) == (i8042_data_reg & ~0xf) &&
1135               i8042_pnp_data_reg != i8042_data_reg) ||
1136             !i8042_pnp_data_reg) {
1137                 pr_warn("PNP: PS/2 controller has invalid data port %#x; using default %#x\n",
1138                         i8042_pnp_data_reg, i8042_data_reg);
1139                 i8042_pnp_data_reg = i8042_data_reg;
1140                 pnp_data_busted = true;
1141         }
1142
1143         if (((i8042_pnp_command_reg & ~0xf) == (i8042_command_reg & ~0xf) &&
1144               i8042_pnp_command_reg != i8042_command_reg) ||
1145             !i8042_pnp_command_reg) {
1146                 pr_warn("PNP: PS/2 controller has invalid command port %#x; using default %#x\n",
1147                         i8042_pnp_command_reg, i8042_command_reg);
1148                 i8042_pnp_command_reg = i8042_command_reg;
1149                 pnp_data_busted = true;
1150         }
1151
1152         if (!i8042_nokbd && !i8042_pnp_kbd_irq) {
1153                 pr_warn("PNP: PS/2 controller doesn't have KBD irq; using default %d\n",
1154                         i8042_kbd_irq);
1155                 i8042_pnp_kbd_irq = i8042_kbd_irq;
1156                 pnp_data_busted = true;
1157         }
1158
1159         if (!i8042_noaux && !i8042_pnp_aux_irq) {
1160                 if (!pnp_data_busted && i8042_pnp_kbd_irq) {
1161                         pr_warn("PNP: PS/2 appears to have AUX port disabled, "
1162                                 "if this is incorrect please boot with i8042.nopnp\n");
1163                         i8042_noaux = true;
1164                 } else {
1165                         pr_warn("PNP: PS/2 controller doesn't have AUX irq; using default %d\n",
1166                                 i8042_aux_irq);
1167                         i8042_pnp_aux_irq = i8042_aux_irq;
1168                 }
1169         }
1170
1171         i8042_data_reg = i8042_pnp_data_reg;
1172         i8042_command_reg = i8042_pnp_command_reg;
1173         i8042_kbd_irq = i8042_pnp_kbd_irq;
1174         i8042_aux_irq = i8042_pnp_aux_irq;
1175
1176 #ifdef CONFIG_X86
1177         i8042_bypass_aux_irq_test = !pnp_data_busted &&
1178                                     dmi_check_system(i8042_dmi_laptop_table);
1179 #endif
1180
1181         return 0;
1182 }
1183
1184 #else  /* !CONFIG_PNP */
1185 static inline int i8042_pnp_init(void) { return 0; }
1186 static inline void i8042_pnp_exit(void) { }
1187 #endif /* CONFIG_PNP */
1188
1189 static int __init i8042_platform_init(void)
1190 {
1191         int retval;
1192
1193 #ifdef CONFIG_X86
1194         u8 a20_on = 0xdf;
1195         /* Just return if platform does not have i8042 controller */
1196         if (x86_platform.legacy.i8042 == X86_LEGACY_I8042_PLATFORM_ABSENT)
1197                 return -ENODEV;
1198 #endif
1199
1200 /*
1201  * On ix86 platforms touching the i8042 data register region can do really
1202  * bad things. Because of this the region is always reserved on ix86 boxes.
1203  *
1204  *      if (!request_region(I8042_DATA_REG, 16, "i8042"))
1205  *              return -EBUSY;
1206  */
1207
1208         i8042_kbd_irq = I8042_MAP_IRQ(1);
1209         i8042_aux_irq = I8042_MAP_IRQ(12);
1210
1211         retval = i8042_pnp_init();
1212         if (retval)
1213                 return retval;
1214
1215 #if defined(__ia64__)
1216         i8042_reset = I8042_RESET_ALWAYS;
1217 #endif
1218
1219 #ifdef CONFIG_X86
1220         /* Honor module parameter when value is not default */
1221         if (i8042_reset == I8042_RESET_DEFAULT) {
1222                 if (dmi_check_system(i8042_dmi_reset_table))
1223                         i8042_reset = I8042_RESET_ALWAYS;
1224
1225                 if (dmi_check_system(i8042_dmi_noselftest_table))
1226                         i8042_reset = I8042_RESET_NEVER;
1227         }
1228
1229         if (dmi_check_system(i8042_dmi_noloop_table))
1230                 i8042_noloop = true;
1231
1232         if (dmi_check_system(i8042_dmi_nomux_table))
1233                 i8042_nomux = true;
1234
1235         if (dmi_check_system(i8042_dmi_forcemux_table))
1236                 i8042_nomux = false;
1237
1238         if (dmi_check_system(i8042_dmi_notimeout_table))
1239                 i8042_notimeout = true;
1240
1241         if (dmi_check_system(i8042_dmi_dritek_table))
1242                 i8042_dritek = true;
1243
1244         if (dmi_check_system(i8042_dmi_kbdreset_table))
1245                 i8042_kbdreset = true;
1246
1247         /*
1248          * A20 was already enabled during early kernel init. But some buggy
1249          * BIOSes (in MSI Laptops) require A20 to be enabled using 8042 to
1250          * resume from S3. So we do it here and hope that nothing breaks.
1251          */
1252         i8042_command(&a20_on, 0x10d1);
1253         i8042_command(NULL, 0x00ff);    /* Null command for SMM firmware */
1254 #endif /* CONFIG_X86 */
1255
1256         return retval;
1257 }
1258
1259 static inline void i8042_platform_exit(void)
1260 {
1261         i8042_pnp_exit();
1262 }
1263
1264 #endif /* _I8042_X86IA64IO_H */