drivers/input/serio/i8042-x86ia64io.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 #ifndef _I8042_X86IA64IO_H
   3 #define _I8042_X86IA64IO_H
   4
   5
   6 #ifdef CONFIG_X86
   7 #include <asm/x86_init.h>
   8 #endif
   9
  10 /*
  11  * Names.
  12  */
  13
  14 #define I8042_KBD_PHYS_DESC "isa0060/serio0"
  15 #define I8042_AUX_PHYS_DESC "isa0060/serio1"
  16 #define I8042_MUX_PHYS_DESC "isa0060/serio%d"
  17
  18 /*
  19  * IRQs.
  20  */
  21
  22 #if defined(__ia64__)
  23 # define I8042_MAP_IRQ(x)       isa_irq_to_vector((x))
  24 #else
  25 # define I8042_MAP_IRQ(x)       (x)
  26 #endif
  27
  28 #define I8042_KBD_IRQ   i8042_kbd_irq
  29 #define I8042_AUX_IRQ   i8042_aux_irq
  30
  31 static int i8042_kbd_irq;
  32 static int i8042_aux_irq;
  33
  34 /*
  35  * Register numbers.
  36  */
  37
  38 #define I8042_COMMAND_REG       i8042_command_reg
  39 #define I8042_STATUS_REG        i8042_command_reg
  40 #define I8042_DATA_REG          i8042_data_reg
  41
  42 static int i8042_command_reg = 0x64;
  43 static int i8042_data_reg = 0x60;
  44
  45
  46 static inline int i8042_read_data(void)
  47 {
  48         return inb(I8042_DATA_REG);
  49 }
  50
  51 static inline int i8042_read_status(void)
  52 {
  53         return inb(I8042_STATUS_REG);
  54 }
  55
  56 static inline void i8042_write_data(int val)
  57 {
  58         outb(val, I8042_DATA_REG);
  59 }
  60
  61 static inline void i8042_write_command(int val)
  62 {
  63         outb(val, I8042_COMMAND_REG);
  64 }
  65
  66 #ifdef CONFIG_X86
  67
  68 #include <linux/dmi.h>
  69
  70 static const struct dmi_system_id __initconst i8042_dmi_noloop_table[] = {
  71         {
  72                 /*
  73                  * Arima-Rioworks HDAMB -
  74                  * AUX LOOP command does not raise AUX IRQ
  75                  */
  76                 .matches = {
  77                         DMI_MATCH(DMI_BOARD_VENDOR, "RIOWORKS"),
  78                         DMI_MATCH(DMI_BOARD_NAME, "HDAMB"),
  79                         DMI_MATCH(DMI_BOARD_VERSION, "Rev E"),
  80                 },
  81         },
  82         {
  83                 /* ASUS G1S */
  84                 .matches = {
  85                         DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer Inc."),
  86                         DMI_MATCH(DMI_BOARD_NAME, "G1S"),
  87                         DMI_MATCH(DMI_BOARD_VERSION, "1.0"),
  88                 },
  89         },
  90         {
  91                 /* ASUS P65UP5 - AUX LOOP command does not raise AUX IRQ */
  92                 .matches = {
  93                         DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
  94                         DMI_MATCH(DMI_BOARD_NAME, "P/I-P65UP5"),
  95                         DMI_MATCH(DMI_BOARD_VERSION, "REV 2.X"),
  96                 },
  97         },
  98         {
  99                 .matches = {
 100                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 101                         DMI_MATCH(DMI_PRODUCT_NAME, "X750LN"),
 102                 },
 103         },
 104         {
 105                 .matches = {
 106                         DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
 107                         DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
 108                         DMI_MATCH(DMI_PRODUCT_VERSION, "8500"),
 109                 },
 110         },
 111         {
 112                 .matches = {
 113                         DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
 114                         DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
 115                         DMI_MATCH(DMI_PRODUCT_VERSION, "DL760"),
 116                 },
 117         },
 118         {
 119                 /* Dell Embedded Box PC 3000 */
 120                 .matches = {
 121                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 122                         DMI_MATCH(DMI_PRODUCT_NAME, "Embedded Box PC 3000"),
 123                 },
 124         },
 125         {
 126                 /* OQO Model 01 */
 127                 .matches = {
 128                         DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
 129                         DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
 130                         DMI_MATCH(DMI_PRODUCT_VERSION, "00"),
 131                 },
 132         },
 133         {
 134                 /* ULI EV4873 - AUX LOOP does not work properly */
 135                 .matches = {
 136                         DMI_MATCH(DMI_SYS_VENDOR, "ULI"),
 137                         DMI_MATCH(DMI_PRODUCT_NAME, "EV4873"),
 138                         DMI_MATCH(DMI_PRODUCT_VERSION, "5a"),
 139                 },
 140         },
 141         {
 142                 /* Microsoft Virtual Machine */
 143                 .matches = {
 144                         DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
 145                         DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"),
 146                         DMI_MATCH(DMI_PRODUCT_VERSION, "VS2005R2"),
 147                 },
 148         },
 149         {
 150                 /* Medion MAM 2070 */
 151                 .matches = {
 152                         DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
 153                         DMI_MATCH(DMI_PRODUCT_NAME, "MAM 2070"),
 154                         DMI_MATCH(DMI_PRODUCT_VERSION, "5a"),
 155                 },
 156         },
 157         {
 158                 /* Medion Akoya E7225 */
 159                 .matches = {
 160                         DMI_MATCH(DMI_SYS_VENDOR, "Medion"),
 161                         DMI_MATCH(DMI_PRODUCT_NAME, "Akoya E7225"),
 162                         DMI_MATCH(DMI_PRODUCT_VERSION, "1.0"),
 163                 },
 164         },
 165         {
 166                 /* Blue FB5601 */
 167                 .matches = {
 168                         DMI_MATCH(DMI_SYS_VENDOR, "blue"),
 169                         DMI_MATCH(DMI_PRODUCT_NAME, "FB5601"),
 170                         DMI_MATCH(DMI_PRODUCT_VERSION, "M606"),
 171                 },
 172         },
 173         {
 174                 /* Gigabyte M912 */
 175                 .matches = {
 176                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 177                         DMI_MATCH(DMI_PRODUCT_NAME, "M912"),
 178                         DMI_MATCH(DMI_PRODUCT_VERSION, "01"),
 179                 },
 180         },
 181         {
 182                 /* Gigabyte M1022M netbook */
 183                 .matches = {
 184                         DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co.,Ltd."),
 185                         DMI_MATCH(DMI_BOARD_NAME, "M1022E"),
 186                         DMI_MATCH(DMI_BOARD_VERSION, "1.02"),
 187                 },
 188         },
 189         {
 190                 /* Gigabyte Spring Peak - defines wrong chassis type */
 191                 .matches = {
 192                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 193                         DMI_MATCH(DMI_PRODUCT_NAME, "Spring Peak"),
 194                 },
 195         },
 196         {
 197                 /* Gigabyte T1005 - defines wrong chassis type ("Other") */
 198                 .matches = {
 199                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 200                         DMI_MATCH(DMI_PRODUCT_NAME, "T1005"),
 201                 },
 202         },
 203         {
 204                 /* Gigabyte T1005M/P - defines wrong chassis type ("Other") */
 205                 .matches = {
 206                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 207                         DMI_MATCH(DMI_PRODUCT_NAME, "T1005M/P"),
 208                 },
 209         },
 210         {
 211                 .matches = {
 212                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 213                         DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv9700"),
 214                         DMI_MATCH(DMI_PRODUCT_VERSION, "Rev 1"),
 215                 },
 216         },
 217         {
 218                 .matches = {
 219                         DMI_MATCH(DMI_SYS_VENDOR, "PEGATRON CORPORATION"),
 220                         DMI_MATCH(DMI_PRODUCT_NAME, "C15B"),
 221                 },
 222         },
 223         {
 224                 .matches = {
 225                         DMI_MATCH(DMI_SYS_VENDOR, "ByteSpeed LLC"),
 226                         DMI_MATCH(DMI_PRODUCT_NAME, "ByteSpeed Laptop C15B"),
 227                 },
 228         },
 229         { }
 230 };
 231
 232 /*
 233  * Some Fujitsu notebooks are having trouble with touchpads if
 234  * active multiplexing mode is activated. Luckily they don't have
 235  * external PS/2 ports so we can safely disable it.
 236  * ... apparently some Toshibas don't like MUX mode either and
 237  * die horrible death on reboot.
 238  */
 239 static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
 240         {
 241                 /* Fujitsu Lifebook P7010/P7010D */
 242                 .matches = {
 243                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 244                         DMI_MATCH(DMI_PRODUCT_NAME, "P7010"),
 245                 },
 246         },
 247         {
 248                 /* Fujitsu Lifebook P7010 */
 249                 .matches = {
 250                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 251                         DMI_MATCH(DMI_PRODUCT_NAME, "0000000000"),
 252                 },
 253         },
 254         {
 255                 /* Fujitsu Lifebook P5020D */
 256                 .matches = {
 257                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 258                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P Series"),
 259                 },
 260         },
 261         {
 262                 /* Fujitsu Lifebook S2000 */
 263                 .matches = {
 264                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 265                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S Series"),
 266                 },
 267         },
 268         {
 269                 /* Fujitsu Lifebook S6230 */
 270                 .matches = {
 271                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 272                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S6230"),
 273                 },
 274         },
 275         {
 276                 /* Fujitsu Lifebook U745 */
 277                 .matches = {
 278                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 279                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U745"),
 280                 },
 281         },
 282         {
 283                 /* Fujitsu T70H */
 284                 .matches = {
 285                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 286                         DMI_MATCH(DMI_PRODUCT_NAME, "FMVLT70H"),
 287                 },
 288         },
 289         {
 290                 /* Fujitsu-Siemens Lifebook T3010 */
 291                 .matches = {
 292                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 293                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK T3010"),
 294                 },
 295         },
 296         {
 297                 /* Fujitsu-Siemens Lifebook E4010 */
 298                 .matches = {
 299                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 300                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E4010"),
 301                 },
 302         },
 303         {
 304                 /* Fujitsu-Siemens Amilo Pro 2010 */
 305                 .matches = {
 306                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 307                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro V2010"),
 308                 },
 309         },
 310         {
 311                 /* Fujitsu-Siemens Amilo Pro 2030 */
 312                 .matches = {
 313                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 314                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"),
 315                 },
 316         },
 317         {
 318                 /*
 319                  * No data is coming from the touchscreen unless KBC
 320                  * is in legacy mode.
 321                  */
 322                 /* Panasonic CF-29 */
 323                 .matches = {
 324                         DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
 325                         DMI_MATCH(DMI_PRODUCT_NAME, "CF-29"),
 326                 },
 327         },
 328         {
 329                 /*
 330                  * HP Pavilion DV4017EA -
 331                  * errors on MUX ports are reported without raising AUXDATA
 332                  * causing "spurious NAK" messages.
 333                  */
 334                 .matches = {
 335                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 336                         DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EA032EA#ABF)"),
 337                 },
 338         },
 339         {
 340                 /*
 341                  * HP Pavilion ZT1000 -
 342                  * like DV4017EA does not raise AUXERR for errors on MUX ports.
 343                  */
 344                 .matches = {
 345                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 346                         DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion Notebook PC"),
 347                         DMI_MATCH(DMI_PRODUCT_VERSION, "HP Pavilion Notebook ZT1000"),
 348                 },
 349         },
 350         {
 351                 /*
 352                  * HP Pavilion DV4270ca -
 353                  * like DV4017EA does not raise AUXERR for errors on MUX ports.
 354                  */
 355                 .matches = {
 356                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 357                         DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EH476UA#ABL)"),
 358                 },
 359         },
 360         {
 361                 .matches = {
 362                         DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 363                         DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P10"),
 364                 },
 365         },
 366         {
 367                 .matches = {
 368                         DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 369                         DMI_MATCH(DMI_PRODUCT_NAME, "EQUIUM A110"),
 370                 },
 371         },
 372         {
 373                 .matches = {
 374                         DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 375                         DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE C850D"),
 376                 },
 377         },
 378         {
 379                 .matches = {
 380                         DMI_MATCH(DMI_SYS_VENDOR, "ALIENWARE"),
 381                         DMI_MATCH(DMI_PRODUCT_NAME, "Sentia"),
 382                 },
 383         },
 384         {
 385                 /* Sharp Actius MM20 */
 386                 .matches = {
 387                         DMI_MATCH(DMI_SYS_VENDOR, "SHARP"),
 388                         DMI_MATCH(DMI_PRODUCT_NAME, "PC-MM20 Series"),
 389                 },
 390         },
 391         {
 392                 /* Sony Vaio FS-115b */
 393                 .matches = {
 394                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 395                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FS115B"),
 396                 },
 397         },
 398         {
 399                 /*
 400                  * Sony Vaio FZ-240E -
 401                  * reset and GET ID commands issued via KBD port are
 402                  * sometimes being delivered to AUX3.
 403                  */
 404                 .matches = {
 405                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 406                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ240E"),
 407                 },
 408         },
 409         {
 410                 /*
 411                  * Most (all?) VAIOs do not have external PS/2 ports nor
 412                  * they implement active multiplexing properly, and
 413                  * MUX discovery usually messes up keyboard/touchpad.
 414                  */
 415                 .matches = {
 416                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 417                         DMI_MATCH(DMI_BOARD_NAME, "VAIO"),
 418                 },
 419         },
 420         {
 421                 /* Amoi M636/A737 */
 422                 .matches = {
 423                         DMI_MATCH(DMI_SYS_VENDOR, "Amoi Electronics CO.,LTD."),
 424                         DMI_MATCH(DMI_PRODUCT_NAME, "M636/A737 platform"),
 425                 },
 426         },
 427         {
 428                 /* Lenovo 3000 n100 */
 429                 .matches = {
 430                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 431                         DMI_MATCH(DMI_PRODUCT_NAME, "076804U"),
 432                 },
 433         },
 434         {
 435                 /* Lenovo XiaoXin Air 12 */
 436                 .matches = {
 437                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 438                         DMI_MATCH(DMI_PRODUCT_NAME, "80UN"),
 439                 },
 440         },
 441         {
 442                 .matches = {
 443                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 444                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
 445                 },
 446         },
 447         {
 448                 /* Acer Aspire 5710 */
 449                 .matches = {
 450                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 451                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5710"),
 452                 },
 453         },
 454         {
 455                 /* Acer Aspire 7738 */
 456                 .matches = {
 457                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 458                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7738"),
 459                 },
 460         },
 461         {
 462                 /* Gericom Bellagio */
 463                 .matches = {
 464                         DMI_MATCH(DMI_SYS_VENDOR, "Gericom"),
 465                         DMI_MATCH(DMI_PRODUCT_NAME, "N34AS6"),
 466                 },
 467         },
 468         {
 469                 /* IBM 2656 */
 470                 .matches = {
 471                         DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
 472                         DMI_MATCH(DMI_PRODUCT_NAME, "2656"),
 473                 },
 474         },
 475         {
 476                 /* Dell XPS M1530 */
 477                 .matches = {
 478                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 479                         DMI_MATCH(DMI_PRODUCT_NAME, "XPS M1530"),
 480                 },
 481         },
 482         {
 483                 /* Compal HEL80I */
 484                 .matches = {
 485                         DMI_MATCH(DMI_SYS_VENDOR, "COMPAL"),
 486                         DMI_MATCH(DMI_PRODUCT_NAME, "HEL80I"),
 487                 },
 488         },
 489         {
 490                 /* Dell Vostro 1510 */
 491                 .matches = {
 492                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 493                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro1510"),
 494                 },
 495         },
 496         {
 497                 /* Acer Aspire 5536 */
 498                 .matches = {
 499                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 500                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5536"),
 501                         DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
 502                 },
 503         },
 504         {
 505                 /* Dell Vostro V13 */
 506                 .matches = {
 507                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 508                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
 509                 },
 510         },
 511         {
 512                 /* Newer HP Pavilion dv4 models */
 513                 .matches = {
 514                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 515                         DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
 516                 },
 517         },
 518         {
 519                 /* Asus X450LCP */
 520                 .matches = {
 521                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 522                         DMI_MATCH(DMI_PRODUCT_NAME, "X450LCP"),
 523                 },
 524         },
 525         {
 526                 /* Avatar AVIU-145A6 */
 527                 .matches = {
 528                         DMI_MATCH(DMI_SYS_VENDOR, "Intel"),
 529                         DMI_MATCH(DMI_PRODUCT_NAME, "IC4I"),
 530                 },
 531         },
 532         {
 533                 /* TUXEDO BU1406 */
 534                 .matches = {
 535                         DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
 536                         DMI_MATCH(DMI_PRODUCT_NAME, "N24_25BU"),
 537                 },
 538         },
 539         {
 540                 /* Lenovo LaVie Z */
 541                 .matches = {
 542                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 543                         DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo LaVie Z"),
 544                 },
 545         },
 546         {
 547                 /*
 548                  * Acer Aspire 5738z
 549                  * Touchpad stops working in mux mode when dis- + re-enabled
 550                  * with the touchpad enable/disable toggle hotkey
 551                  */
 552                 .matches = {
 553                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 554                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5738"),
 555                 },
 556         },
 557         {
 558                 /* Entroware Proteus */
 559                 .matches = {
 560                         DMI_MATCH(DMI_SYS_VENDOR, "Entroware"),
 561                         DMI_MATCH(DMI_PRODUCT_NAME, "Proteus"),
 562                         DMI_MATCH(DMI_PRODUCT_VERSION, "EL07R4"),
 563                 },
 564         },
 565         { }
 566 };
 567
 568 static const struct dmi_system_id i8042_dmi_forcemux_table[] __initconst = {
 569         {
 570                 /*
 571                  * Sony Vaio VGN-CS series require MUX or the touch sensor
 572                  * buttons will disturb touchpad operation
 573                  */
 574                 .matches = {
 575                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 576                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-CS"),
 577                 },
 578         },
 579         { }
 580 };
 581
 582 /*
 583  * On some Asus laptops, just running self tests cause problems.
 584  */
 585 static const struct dmi_system_id i8042_dmi_noselftest_table[] = {
 586         {
 587                 .matches = {
 588                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 589                         DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
 590                 },
 591         }, {
 592                 .matches = {
 593                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 594                         DMI_MATCH(DMI_CHASSIS_TYPE, "31"), /* Convertible Notebook */
 595                 },
 596         },
 597         { }
 598 };
 599 static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = {
 600         {
 601                 /* MSI Wind U-100 */
 602                 .matches = {
 603                         DMI_MATCH(DMI_BOARD_NAME, "U-100"),
 604                         DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
 605                 },
 606         },
 607         {
 608                 /* LG Electronics X110 */
 609                 .matches = {
 610                         DMI_MATCH(DMI_BOARD_NAME, "X110"),
 611                         DMI_MATCH(DMI_BOARD_VENDOR, "LG Electronics Inc."),
 612                 },
 613         },
 614         {
 615                 /* Acer Aspire One 150 */
 616                 .matches = {
 617                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 618                         DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
 619                 },
 620         },
 621         {
 622                 .matches = {
 623                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 624                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire A114-31"),
 625                 },
 626         },
 627         {
 628                 .matches = {
 629                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 630                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire A314-31"),
 631                 },
 632         },
 633         {
 634                 .matches = {
 635                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 636                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire A315-31"),
 637                 },
 638         },
 639         {
 640                 .matches = {
 641                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 642                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire ES1-132"),
 643                 },
 644         },
 645         {
 646                 .matches = {
 647                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 648                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire ES1-332"),
 649                 },
 650         },
 651         {
 652                 .matches = {
 653                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 654                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire ES1-432"),
 655                 },
 656         },
 657         {
 658                 .matches = {
 659                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 660                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate Spin B118-RN"),
 661                 },
 662         },
 663         {
 664                 /* Advent 4211 */
 665                 .matches = {
 666                         DMI_MATCH(DMI_SYS_VENDOR, "DIXONSXP"),
 667                         DMI_MATCH(DMI_PRODUCT_NAME, "Advent 4211"),
 668                 },
 669         },
 670         {
 671                 /* Medion Akoya Mini E1210 */
 672                 .matches = {
 673                         DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
 674                         DMI_MATCH(DMI_PRODUCT_NAME, "E1210"),
 675                 },
 676         },
 677         {
 678                 /* Medion Akoya E1222 */
 679                 .matches = {
 680                         DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
 681                         DMI_MATCH(DMI_PRODUCT_NAME, "E122X"),
 682                 },
 683         },
 684         {
 685                 /* Mivvy M310 */
 686                 .matches = {
 687                         DMI_MATCH(DMI_SYS_VENDOR, "VIOOO"),
 688                         DMI_MATCH(DMI_PRODUCT_NAME, "N10"),
 689                 },
 690         },
 691         {
 692                 /* Dell Vostro 1320 */
 693                 .matches = {
 694                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 695                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1320"),
 696                 },
 697         },
 698         {
 699                 /* Dell Vostro 1520 */
 700                 .matches = {
 701                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 702                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1520"),
 703                 },
 704         },
 705         {
 706                 /* Dell Vostro 1720 */
 707                 .matches = {
 708                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 709                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1720"),
 710                 },
 711         },
 712         {
 713                 /* Lenovo Ideapad U455 */
 714                 .matches = {
 715                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 716                         DMI_MATCH(DMI_PRODUCT_NAME, "20046"),
 717                 },
 718         },
 719         {
 720                 /* Lenovo ThinkPad L460 */
 721                 .matches = {
 722                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 723                         DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L460"),
 724                 },
 725         },
 726         {
 727                 /* Clevo P650RS, 650RP6, Sager NP8152-S, and others */
 728                 .matches = {
 729                         DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
 730                         DMI_MATCH(DMI_PRODUCT_NAME, "P65xRP"),
 731                 },
 732         },
 733         {
 734                 /* Lenovo ThinkPad Twist S230u */
 735                 .matches = {
 736                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 737                         DMI_MATCH(DMI_PRODUCT_NAME, "33474HU"),
 738                 },
 739         },
 740         {
 741                 /* Entroware Proteus */
 742                 .matches = {
 743                         DMI_MATCH(DMI_SYS_VENDOR, "Entroware"),
 744                         DMI_MATCH(DMI_PRODUCT_NAME, "Proteus"),
 745                         DMI_MATCH(DMI_PRODUCT_VERSION, "EL07R4"),
 746                 },
 747         },
 748         { }
 749 };
 750
 751 #ifdef CONFIG_PNP
 752 static const struct dmi_system_id __initconst i8042_dmi_nopnp_table[] = {
 753         {
 754                 /* Intel MBO Desktop D845PESV */
 755                 .matches = {
 756                         DMI_MATCH(DMI_BOARD_NAME, "D845PESV"),
 757                         DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
 758                 },
 759         },
 760         {
 761                 /*
 762                  * Intel NUC D54250WYK - does not have i8042 controller but
 763                  * declares PS/2 devices in DSDT.
 764                  */
 765                 .matches = {
 766                         DMI_MATCH(DMI_BOARD_NAME, "D54250WYK"),
 767                         DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
 768                 },
 769         },
 770         {
 771                 /* MSI Wind U-100 */
 772                 .matches = {
 773                         DMI_MATCH(DMI_BOARD_NAME, "U-100"),
 774                         DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
 775                 },
 776         },
 777         {
 778                 /* Acer Aspire 5 A515 */
 779                 .matches = {
 780                         DMI_MATCH(DMI_BOARD_NAME, "Grumpy_PK"),
 781                         DMI_MATCH(DMI_BOARD_VENDOR, "PK"),
 782                 },
 783         },
 784         { }
 785 };
 786
 787 static const struct dmi_system_id __initconst i8042_dmi_laptop_table[] = {
 788         {
 789                 .matches = {
 790                         DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
 791                 },
 792         },
 793         {
 794                 .matches = {
 795                         DMI_MATCH(DMI_CHASSIS_TYPE, "9"), /* Laptop */
 796                 },
 797         },
 798         {
 799                 .matches = {
 800                         DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
 801                 },
 802         },
 803         {
 804                 .matches = {
 805                         DMI_MATCH(DMI_CHASSIS_TYPE, "14"), /* Sub-Notebook */
 806                 },
 807         },
 808         { }
 809 };
 810 #endif
 811
 812 static const struct dmi_system_id __initconst i8042_dmi_notimeout_table[] = {
 813         {
 814                 /* Dell Vostro V13 */
 815                 .matches = {
 816                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 817                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
 818                 },
 819         },
 820         {
 821                 /* Newer HP Pavilion dv4 models */
 822                 .matches = {
 823                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 824                         DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
 825                 },
 826         },
 827         {
 828                 /* Fujitsu A544 laptop */
 829                 /* https://bugzilla.redhat.com/show_bug.cgi?id=1111138 */
 830                 .matches = {
 831                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 832                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK A544"),
 833                 },
 834         },
 835         {
 836                 /* Fujitsu AH544 laptop */
 837                 /* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
 838                 .matches = {
 839                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 840                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK AH544"),
 841                 },
 842         },
 843         {
 844                 /* Fujitsu U574 laptop */
 845                 /* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
 846                 .matches = {
 847                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 848                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U574"),
 849                 },
 850         },
 851         {
 852                 /* Fujitsu UH554 laptop */
 853                 .matches = {
 854                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 855                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK UH544"),
 856                 },
 857         },
 858         { }
 859 };
 860
 861 /*
 862  * Some Wistron based laptops need us to explicitly enable the 'Dritek
 863  * keyboard extension' to make their extra keys start generating scancodes.
 864  * Originally, this was just confined to older laptops, but a few Acer laptops
 865  * have turned up in 2007 that also need this again.
 866  */
 867 static const struct dmi_system_id __initconst i8042_dmi_dritek_table[] = {
 868         {
 869                 /* Acer Aspire 5100 */
 870                 .matches = {
 871                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 872                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
 873                 },
 874         },
 875         {
 876                 /* Acer Aspire 5610 */
 877                 .matches = {
 878                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 879                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
 880                 },
 881         },
 882         {
 883                 /* Acer Aspire 5630 */
 884                 .matches = {
 885                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 886                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
 887                 },
 888         },
 889         {
 890                 /* Acer Aspire 5650 */
 891                 .matches = {
 892                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 893                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
 894                 },
 895         },
 896         {
 897                 /* Acer Aspire 5680 */
 898                 .matches = {
 899                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 900                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
 901                 },
 902         },
 903         {
 904                 /* Acer Aspire 5720 */
 905                 .matches = {
 906                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 907                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5720"),
 908                 },
 909         },
 910         {
 911                 /* Acer Aspire 9110 */
 912                 .matches = {
 913                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 914                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
 915                 },
 916         },
 917         {
 918                 /* Acer TravelMate 660 */
 919                 .matches = {
 920                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 921                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 660"),
 922                 },
 923         },
 924         {
 925                 /* Acer TravelMate 2490 */
 926                 .matches = {
 927                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 928                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
 929                 },
 930         },
 931         {
 932                 /* Acer TravelMate 4280 */
 933                 .matches = {
 934                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 935                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4280"),
 936                 },
 937         },
 938         { }
 939 };
 940
 941 /*
 942  * Some laptops need keyboard reset before probing for the trackpad to get
 943  * it detected, initialised & finally work.
 944  */
 945 static const struct dmi_system_id __initconst i8042_dmi_kbdreset_table[] = {
 946         {
 947                 /* Gigabyte P35 v2 - Elantech touchpad */
 948                 .matches = {
 949                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 950                         DMI_MATCH(DMI_PRODUCT_NAME, "P35V2"),
 951                 },
 952         },
 953                 {
 954                 /* Aorus branded Gigabyte X3 Plus - Elantech touchpad */
 955                 .matches = {
 956                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 957                         DMI_MATCH(DMI_PRODUCT_NAME, "X3"),
 958                 },
 959         },
 960         {
 961                 /* Gigabyte P34 - Elantech touchpad */
 962                 .matches = {
 963                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 964                         DMI_MATCH(DMI_PRODUCT_NAME, "P34"),
 965                 },
 966         },
 967         {
 968                 /* Gigabyte P57 - Elantech touchpad */
 969                 .matches = {
 970                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 971                         DMI_MATCH(DMI_PRODUCT_NAME, "P57"),
 972                 },
 973         },
 974         {
 975                 /* Schenker XMG C504 - Elantech touchpad */
 976                 .matches = {
 977                         DMI_MATCH(DMI_SYS_VENDOR, "XMG"),
 978                         DMI_MATCH(DMI_PRODUCT_NAME, "C504"),
 979                 },
 980         },
 981         { }
 982 };
 983
 984 #endif /* CONFIG_X86 */
 985
 986 #ifdef CONFIG_PNP
 987 #include <linux/pnp.h>
 988
 989 static bool i8042_pnp_kbd_registered;
 990 static unsigned int i8042_pnp_kbd_devices;
 991 static bool i8042_pnp_aux_registered;
 992 static unsigned int i8042_pnp_aux_devices;
 993
 994 static int i8042_pnp_command_reg;
 995 static int i8042_pnp_data_reg;
 996 static int i8042_pnp_kbd_irq;
 997 static int i8042_pnp_aux_irq;
 998
 999 static char i8042_pnp_kbd_name[32];
1000 static char i8042_pnp_aux_name[32];
1001
1002 static void i8042_pnp_id_to_string(struct pnp_id *id, char *dst, int dst_size)
1003 {
1004         strlcpy(dst, "PNP:", dst_size);
1005
1006         while (id) {
1007                 strlcat(dst, " ", dst_size);
1008                 strlcat(dst, id->id, dst_size);
1009                 id = id->next;
1010         }
1011 }
1012
1013 static int i8042_pnp_kbd_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
1014 {
1015         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
1016                 i8042_pnp_data_reg = pnp_port_start(dev,0);
1017
1018         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
1019                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
1020
1021         if (pnp_irq_valid(dev,0))
1022                 i8042_pnp_kbd_irq = pnp_irq(dev, 0);
1023
1024         strlcpy(i8042_pnp_kbd_name, did->id, sizeof(i8042_pnp_kbd_name));
1025         if (strlen(pnp_dev_name(dev))) {
1026                 strlcat(i8042_pnp_kbd_name, ":", sizeof(i8042_pnp_kbd_name));
1027                 strlcat(i8042_pnp_kbd_name, pnp_dev_name(dev), sizeof(i8042_pnp_kbd_name));
1028         }
1029         i8042_pnp_id_to_string(dev->id, i8042_kbd_firmware_id,
1030                                sizeof(i8042_kbd_firmware_id));
1031         i8042_kbd_fwnode = dev_fwnode(&dev->dev);
1032
1033         /* Keyboard ports are always supposed to be wakeup-enabled */
1034         device_set_wakeup_enable(&dev->dev, true);
1035
1036         i8042_pnp_kbd_devices++;
1037         return 0;
1038 }
1039
1040 static int i8042_pnp_aux_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
1041 {
1042         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
1043                 i8042_pnp_data_reg = pnp_port_start(dev,0);
1044
1045         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
1046                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
1047
1048         if (pnp_irq_valid(dev, 0))
1049                 i8042_pnp_aux_irq = pnp_irq(dev, 0);
1050
1051         strlcpy(i8042_pnp_aux_name, did->id, sizeof(i8042_pnp_aux_name));
1052         if (strlen(pnp_dev_name(dev))) {
1053                 strlcat(i8042_pnp_aux_name, ":", sizeof(i8042_pnp_aux_name));
1054                 strlcat(i8042_pnp_aux_name, pnp_dev_name(dev), sizeof(i8042_pnp_aux_name));
1055         }
1056         i8042_pnp_id_to_string(dev->id, i8042_aux_firmware_id,
1057                                sizeof(i8042_aux_firmware_id));
1058
1059         i8042_pnp_aux_devices++;
1060         return 0;
1061 }
1062
1063 static const struct pnp_device_id pnp_kbd_devids[] = {
1064         { .id = "PNP0300", .driver_data = 0 },
1065         { .id = "PNP0301", .driver_data = 0 },
1066         { .id = "PNP0302", .driver_data = 0 },
1067         { .id = "PNP0303", .driver_data = 0 },
1068         { .id = "PNP0304", .driver_data = 0 },
1069         { .id = "PNP0305", .driver_data = 0 },
1070         { .id = "PNP0306", .driver_data = 0 },
1071         { .id = "PNP0309", .driver_data = 0 },
1072         { .id = "PNP030a", .driver_data = 0 },
1073         { .id = "PNP030b", .driver_data = 0 },
1074         { .id = "PNP0320", .driver_data = 0 },
1075         { .id = "PNP0343", .driver_data = 0 },
1076         { .id = "PNP0344", .driver_data = 0 },
1077         { .id = "PNP0345", .driver_data = 0 },
1078         { .id = "CPQA0D7", .driver_data = 0 },
1079         { .id = "", },
1080 };
1081 MODULE_DEVICE_TABLE(pnp, pnp_kbd_devids);
1082
1083 static struct pnp_driver i8042_pnp_kbd_driver = {
1084         .name           = "i8042 kbd",
1085         .id_table       = pnp_kbd_devids,
1086         .probe          = i8042_pnp_kbd_probe,
1087         .driver         = {
1088                 .probe_type = PROBE_FORCE_SYNCHRONOUS,
1089                 .suppress_bind_attrs = true,
1090         },
1091 };
1092
1093 static const struct pnp_device_id pnp_aux_devids[] = {
1094         { .id = "AUI0200", .driver_data = 0 },
1095         { .id = "FJC6000", .driver_data = 0 },
1096         { .id = "FJC6001", .driver_data = 0 },
1097         { .id = "PNP0f03", .driver_data = 0 },
1098         { .id = "PNP0f0b", .driver_data = 0 },
1099         { .id = "PNP0f0e", .driver_data = 0 },
1100         { .id = "PNP0f12", .driver_data = 0 },
1101         { .id = "PNP0f13", .driver_data = 0 },
1102         { .id = "PNP0f19", .driver_data = 0 },
1103         { .id = "PNP0f1c", .driver_data = 0 },
1104         { .id = "SYN0801", .driver_data = 0 },
1105         { .id = "", },
1106 };
1107 MODULE_DEVICE_TABLE(pnp, pnp_aux_devids);
1108
1109 static struct pnp_driver i8042_pnp_aux_driver = {
1110         .name           = "i8042 aux",
1111         .id_table       = pnp_aux_devids,
1112         .probe          = i8042_pnp_aux_probe,
1113         .driver         = {
1114                 .probe_type = PROBE_FORCE_SYNCHRONOUS,
1115                 .suppress_bind_attrs = true,
1116         },
1117 };
1118
1119 static void i8042_pnp_exit(void)
1120 {
1121         if (i8042_pnp_kbd_registered) {
1122                 i8042_pnp_kbd_registered = false;
1123                 pnp_unregister_driver(&i8042_pnp_kbd_driver);
1124         }
1125
1126         if (i8042_pnp_aux_registered) {
1127                 i8042_pnp_aux_registered = false;
1128                 pnp_unregister_driver(&i8042_pnp_aux_driver);
1129         }
1130 }
1131
1132 static int __init i8042_pnp_init(void)
1133 {
1134         char kbd_irq_str[4] = { 0 }, aux_irq_str[4] = { 0 };
1135         bool pnp_data_busted = false;
1136         int err;
1137
1138 #ifdef CONFIG_X86
1139         if (dmi_check_system(i8042_dmi_nopnp_table))
1140                 i8042_nopnp = true;
1141 #endif
1142
1143         if (i8042_nopnp) {
1144                 pr_info("PNP detection disabled\n");
1145                 return 0;
1146         }
1147
1148         err = pnp_register_driver(&i8042_pnp_kbd_driver);
1149         if (!err)
1150                 i8042_pnp_kbd_registered = true;
1151
1152         err = pnp_register_driver(&i8042_pnp_aux_driver);
1153         if (!err)
1154                 i8042_pnp_aux_registered = true;
1155
1156         if (!i8042_pnp_kbd_devices && !i8042_pnp_aux_devices) {
1157                 i8042_pnp_exit();
1158 #if defined(__ia64__)
1159                 return -ENODEV;
1160 #else
1161                 pr_info("PNP: No PS/2 controller found.\n");
1162                 if (x86_platform.legacy.i8042 !=
1163                                 X86_LEGACY_I8042_EXPECTED_PRESENT)
1164                         return -ENODEV;
1165                 pr_info("Probing ports directly.\n");
1166                 return 0;
1167 #endif
1168         }
1169
1170         if (i8042_pnp_kbd_devices)
1171                 snprintf(kbd_irq_str, sizeof(kbd_irq_str),
1172                         "%d", i8042_pnp_kbd_irq);
1173         if (i8042_pnp_aux_devices)
1174                 snprintf(aux_irq_str, sizeof(aux_irq_str),
1175                         "%d", i8042_pnp_aux_irq);
1176
1177         pr_info("PNP: PS/2 Controller [%s%s%s] at %#x,%#x irq %s%s%s\n",
1178                 i8042_pnp_kbd_name, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
1179                 i8042_pnp_aux_name,
1180                 i8042_pnp_data_reg, i8042_pnp_command_reg,
1181                 kbd_irq_str, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
1182                 aux_irq_str);
1183
1184 #if defined(__ia64__)
1185         if (!i8042_pnp_kbd_devices)
1186                 i8042_nokbd = true;
1187         if (!i8042_pnp_aux_devices)
1188                 i8042_noaux = true;
1189 #endif
1190
1191         if (((i8042_pnp_data_reg & ~0xf) == (i8042_data_reg & ~0xf) &&
1192               i8042_pnp_data_reg != i8042_data_reg) ||
1193             !i8042_pnp_data_reg) {
1194                 pr_warn("PNP: PS/2 controller has invalid data port %#x; using default %#x\n",
1195                         i8042_pnp_data_reg, i8042_data_reg);
1196                 i8042_pnp_data_reg = i8042_data_reg;
1197                 pnp_data_busted = true;
1198         }
1199
1200         if (((i8042_pnp_command_reg & ~0xf) == (i8042_command_reg & ~0xf) &&
1201               i8042_pnp_command_reg != i8042_command_reg) ||
1202             !i8042_pnp_command_reg) {
1203                 pr_warn("PNP: PS/2 controller has invalid command port %#x; using default %#x\n",
1204                         i8042_pnp_command_reg, i8042_command_reg);
1205                 i8042_pnp_command_reg = i8042_command_reg;
1206                 pnp_data_busted = true;
1207         }
1208
1209         if (!i8042_nokbd && !i8042_pnp_kbd_irq) {
1210                 pr_warn("PNP: PS/2 controller doesn't have KBD irq; using default %d\n",
1211                         i8042_kbd_irq);
1212                 i8042_pnp_kbd_irq = i8042_kbd_irq;
1213                 pnp_data_busted = true;
1214         }
1215
1216         if (!i8042_noaux && !i8042_pnp_aux_irq) {
1217                 if (!pnp_data_busted && i8042_pnp_kbd_irq) {
1218                         pr_warn("PNP: PS/2 appears to have AUX port disabled, "
1219                                 "if this is incorrect please boot with i8042.nopnp\n");
1220                         i8042_noaux = true;
1221                 } else {
1222                         pr_warn("PNP: PS/2 controller doesn't have AUX irq; using default %d\n",
1223                                 i8042_aux_irq);
1224                         i8042_pnp_aux_irq = i8042_aux_irq;
1225                 }
1226         }
1227
1228         i8042_data_reg = i8042_pnp_data_reg;
1229         i8042_command_reg = i8042_pnp_command_reg;
1230         i8042_kbd_irq = i8042_pnp_kbd_irq;
1231         i8042_aux_irq = i8042_pnp_aux_irq;
1232
1233 #ifdef CONFIG_X86
1234         i8042_bypass_aux_irq_test = !pnp_data_busted &&
1235                                     dmi_check_system(i8042_dmi_laptop_table);
1236 #endif
1237
1238         return 0;
1239 }
1240
1241 #else  /* !CONFIG_PNP */
1242 static inline int i8042_pnp_init(void) { return 0; }
1243 static inline void i8042_pnp_exit(void) { }
1244 #endif /* CONFIG_PNP */
1245
1246 static int __init i8042_platform_init(void)
1247 {
1248         int retval;
1249
1250 #ifdef CONFIG_X86
1251         u8 a20_on = 0xdf;
1252         /* Just return if platform does not have i8042 controller */
1253         if (x86_platform.legacy.i8042 == X86_LEGACY_I8042_PLATFORM_ABSENT)
1254                 return -ENODEV;
1255 #endif
1256
1257 /*
1258  * On ix86 platforms touching the i8042 data register region can do really
1259  * bad things. Because of this the region is always reserved on ix86 boxes.
1260  *
1261  *      if (!request_region(I8042_DATA_REG, 16, "i8042"))
1262  *              return -EBUSY;
1263  */
1264
1265         i8042_kbd_irq = I8042_MAP_IRQ(1);
1266         i8042_aux_irq = I8042_MAP_IRQ(12);
1267
1268         retval = i8042_pnp_init();
1269         if (retval)
1270                 return retval;
1271
1272 #if defined(__ia64__)
1273         i8042_reset = I8042_RESET_ALWAYS;
1274 #endif
1275
1276 #ifdef CONFIG_X86
1277         /* Honor module parameter when value is not default */
1278         if (i8042_reset == I8042_RESET_DEFAULT) {
1279                 if (dmi_check_system(i8042_dmi_reset_table))
1280                         i8042_reset = I8042_RESET_ALWAYS;
1281
1282                 if (dmi_check_system(i8042_dmi_noselftest_table))
1283                         i8042_reset = I8042_RESET_NEVER;
1284         }
1285
1286         if (dmi_check_system(i8042_dmi_noloop_table))
1287                 i8042_noloop = true;
1288
1289         if (dmi_check_system(i8042_dmi_nomux_table))
1290                 i8042_nomux = true;
1291
1292         if (dmi_check_system(i8042_dmi_forcemux_table))
1293                 i8042_nomux = false;
1294
1295         if (dmi_check_system(i8042_dmi_notimeout_table))
1296                 i8042_notimeout = true;
1297
1298         if (dmi_check_system(i8042_dmi_dritek_table))
1299                 i8042_dritek = true;
1300
1301         if (dmi_check_system(i8042_dmi_kbdreset_table))
1302                 i8042_kbdreset = true;
1303
1304         /*
1305          * A20 was already enabled during early kernel init. But some buggy
1306          * BIOSes (in MSI Laptops) require A20 to be enabled using 8042 to
1307          * resume from S3. So we do it here and hope that nothing breaks.
1308          */
1309         i8042_command(&a20_on, 0x10d1);
1310         i8042_command(NULL, 0x00ff);    /* Null command for SMM firmware */
1311 #endif /* CONFIG_X86 */
1312
1313         return retval;
1314 }
1315
1316 static inline void i8042_platform_exit(void)
1317 {
1318         i8042_pnp_exit();
1319 }
1320
1321 #endif /* _I8042_X86IA64IO_H */