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 T725 laptop */
 277                 .matches = {
 278                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 279                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK T725"),
 280                 },
 281         },
 282         {
 283                 /* Fujitsu Lifebook U745 */
 284                 .matches = {
 285                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 286                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U745"),
 287                 },
 288         },
 289         {
 290                 /* Fujitsu T70H */
 291                 .matches = {
 292                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 293                         DMI_MATCH(DMI_PRODUCT_NAME, "FMVLT70H"),
 294                 },
 295         },
 296         {
 297                 /* Fujitsu-Siemens Lifebook T3010 */
 298                 .matches = {
 299                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 300                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK T3010"),
 301                 },
 302         },
 303         {
 304                 /* Fujitsu-Siemens Lifebook E4010 */
 305                 .matches = {
 306                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 307                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E4010"),
 308                 },
 309         },
 310         {
 311                 /* Fujitsu-Siemens Amilo Pro 2010 */
 312                 .matches = {
 313                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 314                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro V2010"),
 315                 },
 316         },
 317         {
 318                 /* Fujitsu-Siemens Amilo Pro 2030 */
 319                 .matches = {
 320                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 321                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"),
 322                 },
 323         },
 324         {
 325                 /*
 326                  * No data is coming from the touchscreen unless KBC
 327                  * is in legacy mode.
 328                  */
 329                 /* Panasonic CF-29 */
 330                 .matches = {
 331                         DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
 332                         DMI_MATCH(DMI_PRODUCT_NAME, "CF-29"),
 333                 },
 334         },
 335         {
 336                 /*
 337                  * HP Pavilion DV4017EA -
 338                  * errors on MUX ports are reported without raising AUXDATA
 339                  * causing "spurious NAK" messages.
 340                  */
 341                 .matches = {
 342                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 343                         DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EA032EA#ABF)"),
 344                 },
 345         },
 346         {
 347                 /*
 348                  * HP Pavilion ZT1000 -
 349                  * like DV4017EA does not raise AUXERR for errors on MUX ports.
 350                  */
 351                 .matches = {
 352                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 353                         DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion Notebook PC"),
 354                         DMI_MATCH(DMI_PRODUCT_VERSION, "HP Pavilion Notebook ZT1000"),
 355                 },
 356         },
 357         {
 358                 /*
 359                  * HP Pavilion DV4270ca -
 360                  * like DV4017EA does not raise AUXERR for errors on MUX ports.
 361                  */
 362                 .matches = {
 363                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 364                         DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EH476UA#ABL)"),
 365                 },
 366         },
 367         {
 368                 .matches = {
 369                         DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 370                         DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P10"),
 371                 },
 372         },
 373         {
 374                 .matches = {
 375                         DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 376                         DMI_MATCH(DMI_PRODUCT_NAME, "EQUIUM A110"),
 377                 },
 378         },
 379         {
 380                 .matches = {
 381                         DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 382                         DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE C850D"),
 383                 },
 384         },
 385         {
 386                 .matches = {
 387                         DMI_MATCH(DMI_SYS_VENDOR, "ALIENWARE"),
 388                         DMI_MATCH(DMI_PRODUCT_NAME, "Sentia"),
 389                 },
 390         },
 391         {
 392                 /* Sharp Actius MM20 */
 393                 .matches = {
 394                         DMI_MATCH(DMI_SYS_VENDOR, "SHARP"),
 395                         DMI_MATCH(DMI_PRODUCT_NAME, "PC-MM20 Series"),
 396                 },
 397         },
 398         {
 399                 /* Sony Vaio FS-115b */
 400                 .matches = {
 401                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 402                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FS115B"),
 403                 },
 404         },
 405         {
 406                 /*
 407                  * Sony Vaio FZ-240E -
 408                  * reset and GET ID commands issued via KBD port are
 409                  * sometimes being delivered to AUX3.
 410                  */
 411                 .matches = {
 412                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 413                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ240E"),
 414                 },
 415         },
 416         {
 417                 /*
 418                  * Most (all?) VAIOs do not have external PS/2 ports nor
 419                  * they implement active multiplexing properly, and
 420                  * MUX discovery usually messes up keyboard/touchpad.
 421                  */
 422                 .matches = {
 423                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 424                         DMI_MATCH(DMI_BOARD_NAME, "VAIO"),
 425                 },
 426         },
 427         {
 428                 /* Amoi M636/A737 */
 429                 .matches = {
 430                         DMI_MATCH(DMI_SYS_VENDOR, "Amoi Electronics CO.,LTD."),
 431                         DMI_MATCH(DMI_PRODUCT_NAME, "M636/A737 platform"),
 432                 },
 433         },
 434         {
 435                 /* Lenovo 3000 n100 */
 436                 .matches = {
 437                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 438                         DMI_MATCH(DMI_PRODUCT_NAME, "076804U"),
 439                 },
 440         },
 441         {
 442                 /* Lenovo XiaoXin Air 12 */
 443                 .matches = {
 444                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 445                         DMI_MATCH(DMI_PRODUCT_NAME, "80UN"),
 446                 },
 447         },
 448         {
 449                 .matches = {
 450                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 451                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
 452                 },
 453         },
 454         {
 455                 /* Acer Aspire 5710 */
 456                 .matches = {
 457                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 458                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5710"),
 459                 },
 460         },
 461         {
 462                 /* Acer Aspire 7738 */
 463                 .matches = {
 464                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 465                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7738"),
 466                 },
 467         },
 468         {
 469                 /* Gericom Bellagio */
 470                 .matches = {
 471                         DMI_MATCH(DMI_SYS_VENDOR, "Gericom"),
 472                         DMI_MATCH(DMI_PRODUCT_NAME, "N34AS6"),
 473                 },
 474         },
 475         {
 476                 /* IBM 2656 */
 477                 .matches = {
 478                         DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
 479                         DMI_MATCH(DMI_PRODUCT_NAME, "2656"),
 480                 },
 481         },
 482         {
 483                 /* Dell XPS M1530 */
 484                 .matches = {
 485                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 486                         DMI_MATCH(DMI_PRODUCT_NAME, "XPS M1530"),
 487                 },
 488         },
 489         {
 490                 /* Compal HEL80I */
 491                 .matches = {
 492                         DMI_MATCH(DMI_SYS_VENDOR, "COMPAL"),
 493                         DMI_MATCH(DMI_PRODUCT_NAME, "HEL80I"),
 494                 },
 495         },
 496         {
 497                 /* Dell Vostro 1510 */
 498                 .matches = {
 499                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 500                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro1510"),
 501                 },
 502         },
 503         {
 504                 /* Acer Aspire 5536 */
 505                 .matches = {
 506                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 507                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5536"),
 508                         DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
 509                 },
 510         },
 511         {
 512                 /* Dell Vostro V13 */
 513                 .matches = {
 514                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 515                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
 516                 },
 517         },
 518         {
 519                 /* Newer HP Pavilion dv4 models */
 520                 .matches = {
 521                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 522                         DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
 523                 },
 524         },
 525         {
 526                 /* Asus X450LCP */
 527                 .matches = {
 528                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 529                         DMI_MATCH(DMI_PRODUCT_NAME, "X450LCP"),
 530                 },
 531         },
 532         {
 533                 /* Avatar AVIU-145A6 */
 534                 .matches = {
 535                         DMI_MATCH(DMI_SYS_VENDOR, "Intel"),
 536                         DMI_MATCH(DMI_PRODUCT_NAME, "IC4I"),
 537                 },
 538         },
 539         {
 540                 /* TUXEDO BU1406 */
 541                 .matches = {
 542                         DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
 543                         DMI_MATCH(DMI_PRODUCT_NAME, "N24_25BU"),
 544                 },
 545         },
 546         {
 547                 /* Lenovo LaVie Z */
 548                 .matches = {
 549                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 550                         DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo LaVie Z"),
 551                 },
 552         },
 553         {
 554                 /*
 555                  * Acer Aspire 5738z
 556                  * Touchpad stops working in mux mode when dis- + re-enabled
 557                  * with the touchpad enable/disable toggle hotkey
 558                  */
 559                 .matches = {
 560                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 561                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5738"),
 562                 },
 563         },
 564         {
 565                 /* Entroware Proteus */
 566                 .matches = {
 567                         DMI_MATCH(DMI_SYS_VENDOR, "Entroware"),
 568                         DMI_MATCH(DMI_PRODUCT_NAME, "Proteus"),
 569                         DMI_MATCH(DMI_PRODUCT_VERSION, "EL07R4"),
 570                 },
 571         },
 572         { }
 573 };
 574
 575 static const struct dmi_system_id i8042_dmi_forcemux_table[] __initconst = {
 576         {
 577                 /*
 578                  * Sony Vaio VGN-CS series require MUX or the touch sensor
 579                  * buttons will disturb touchpad operation
 580                  */
 581                 .matches = {
 582                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 583                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-CS"),
 584                 },
 585         },
 586         { }
 587 };
 588
 589 /*
 590  * On some Asus laptops, just running self tests cause problems.
 591  */
 592 static const struct dmi_system_id i8042_dmi_noselftest_table[] = {
 593         {
 594                 .matches = {
 595                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 596                         DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
 597                 },
 598         }, {
 599                 .matches = {
 600                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 601                         DMI_MATCH(DMI_CHASSIS_TYPE, "31"), /* Convertible Notebook */
 602                 },
 603         },
 604         { }
 605 };
 606 static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = {
 607         {
 608                 /* MSI Wind U-100 */
 609                 .matches = {
 610                         DMI_MATCH(DMI_BOARD_NAME, "U-100"),
 611                         DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
 612                 },
 613         },
 614         {
 615                 /* LG Electronics X110 */
 616                 .matches = {
 617                         DMI_MATCH(DMI_BOARD_NAME, "X110"),
 618                         DMI_MATCH(DMI_BOARD_VENDOR, "LG Electronics Inc."),
 619                 },
 620         },
 621         {
 622                 /* Acer Aspire One 150 */
 623                 .matches = {
 624                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 625                         DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
 626                 },
 627         },
 628         {
 629                 .matches = {
 630                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 631                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire A114-31"),
 632                 },
 633         },
 634         {
 635                 .matches = {
 636                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 637                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire A314-31"),
 638                 },
 639         },
 640         {
 641                 .matches = {
 642                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 643                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire A315-31"),
 644                 },
 645         },
 646         {
 647                 .matches = {
 648                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 649                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire ES1-132"),
 650                 },
 651         },
 652         {
 653                 .matches = {
 654                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 655                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire ES1-332"),
 656                 },
 657         },
 658         {
 659                 .matches = {
 660                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 661                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire ES1-432"),
 662                 },
 663         },
 664         {
 665                 .matches = {
 666                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 667                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate Spin B118-RN"),
 668                 },
 669         },
 670         {
 671                 /* Advent 4211 */
 672                 .matches = {
 673                         DMI_MATCH(DMI_SYS_VENDOR, "DIXONSXP"),
 674                         DMI_MATCH(DMI_PRODUCT_NAME, "Advent 4211"),
 675                 },
 676         },
 677         {
 678                 /* Medion Akoya Mini E1210 */
 679                 .matches = {
 680                         DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
 681                         DMI_MATCH(DMI_PRODUCT_NAME, "E1210"),
 682                 },
 683         },
 684         {
 685                 /* Medion Akoya E1222 */
 686                 .matches = {
 687                         DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
 688                         DMI_MATCH(DMI_PRODUCT_NAME, "E122X"),
 689                 },
 690         },
 691         {
 692                 /* Mivvy M310 */
 693                 .matches = {
 694                         DMI_MATCH(DMI_SYS_VENDOR, "VIOOO"),
 695                         DMI_MATCH(DMI_PRODUCT_NAME, "N10"),
 696                 },
 697         },
 698         {
 699                 /* Dell Vostro 1320 */
 700                 .matches = {
 701                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 702                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1320"),
 703                 },
 704         },
 705         {
 706                 /* Dell Vostro 1520 */
 707                 .matches = {
 708                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 709                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1520"),
 710                 },
 711         },
 712         {
 713                 /* Dell Vostro 1720 */
 714                 .matches = {
 715                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 716                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1720"),
 717                 },
 718         },
 719         {
 720                 /* Lenovo Ideapad U455 */
 721                 .matches = {
 722                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 723                         DMI_MATCH(DMI_PRODUCT_NAME, "20046"),
 724                 },
 725         },
 726         {
 727                 /* Lenovo ThinkPad L460 */
 728                 .matches = {
 729                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 730                         DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L460"),
 731                 },
 732         },
 733         {
 734                 /* Clevo P650RS, 650RP6, Sager NP8152-S, and others */
 735                 .matches = {
 736                         DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
 737                         DMI_MATCH(DMI_PRODUCT_NAME, "P65xRP"),
 738                 },
 739         },
 740         {
 741                 /* Lenovo ThinkPad Twist S230u */
 742                 .matches = {
 743                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 744                         DMI_MATCH(DMI_PRODUCT_NAME, "33474HU"),
 745                 },
 746         },
 747         {
 748                 /* Entroware Proteus */
 749                 .matches = {
 750                         DMI_MATCH(DMI_SYS_VENDOR, "Entroware"),
 751                         DMI_MATCH(DMI_PRODUCT_NAME, "Proteus"),
 752                         DMI_MATCH(DMI_PRODUCT_VERSION, "EL07R4"),
 753                 },
 754         },
 755         { }
 756 };
 757
 758 #ifdef CONFIG_PNP
 759 static const struct dmi_system_id __initconst i8042_dmi_nopnp_table[] = {
 760         {
 761                 /* Intel MBO Desktop D845PESV */
 762                 .matches = {
 763                         DMI_MATCH(DMI_BOARD_NAME, "D845PESV"),
 764                         DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
 765                 },
 766         },
 767         {
 768                 /*
 769                  * Intel NUC D54250WYK - does not have i8042 controller but
 770                  * declares PS/2 devices in DSDT.
 771                  */
 772                 .matches = {
 773                         DMI_MATCH(DMI_BOARD_NAME, "D54250WYK"),
 774                         DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
 775                 },
 776         },
 777         {
 778                 /* MSI Wind U-100 */
 779                 .matches = {
 780                         DMI_MATCH(DMI_BOARD_NAME, "U-100"),
 781                         DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
 782                 },
 783         },
 784         {
 785                 /* Acer Aspire 5 A515 */
 786                 .matches = {
 787                         DMI_MATCH(DMI_BOARD_NAME, "Grumpy_PK"),
 788                         DMI_MATCH(DMI_BOARD_VENDOR, "PK"),
 789                 },
 790         },
 791         { }
 792 };
 793
 794 static const struct dmi_system_id __initconst i8042_dmi_laptop_table[] = {
 795         {
 796                 .matches = {
 797                         DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
 798                 },
 799         },
 800         {
 801                 .matches = {
 802                         DMI_MATCH(DMI_CHASSIS_TYPE, "9"), /* Laptop */
 803                 },
 804         },
 805         {
 806                 .matches = {
 807                         DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
 808                 },
 809         },
 810         {
 811                 .matches = {
 812                         DMI_MATCH(DMI_CHASSIS_TYPE, "14"), /* Sub-Notebook */
 813                 },
 814         },
 815         { }
 816 };
 817 #endif
 818
 819 static const struct dmi_system_id __initconst i8042_dmi_notimeout_table[] = {
 820         {
 821                 /* Dell Vostro V13 */
 822                 .matches = {
 823                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 824                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
 825                 },
 826         },
 827         {
 828                 /* Newer HP Pavilion dv4 models */
 829                 .matches = {
 830                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 831                         DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
 832                 },
 833         },
 834         {
 835                 /* Fujitsu A544 laptop */
 836                 /* https://bugzilla.redhat.com/show_bug.cgi?id=1111138 */
 837                 .matches = {
 838                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 839                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK A544"),
 840                 },
 841         },
 842         {
 843                 /* Fujitsu AH544 laptop */
 844                 /* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
 845                 .matches = {
 846                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 847                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK AH544"),
 848                 },
 849         },
 850         {
 851                 /* Fujitsu Lifebook T725 laptop */
 852                 .matches = {
 853                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 854                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK T725"),
 855                 },
 856         },
 857         {
 858                 /* Fujitsu U574 laptop */
 859                 /* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
 860                 .matches = {
 861                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 862                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U574"),
 863                 },
 864         },
 865         {
 866                 /* Fujitsu UH554 laptop */
 867                 .matches = {
 868                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 869                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK UH544"),
 870                 },
 871         },
 872         { }
 873 };
 874
 875 /*
 876  * Some Wistron based laptops need us to explicitly enable the 'Dritek
 877  * keyboard extension' to make their extra keys start generating scancodes.
 878  * Originally, this was just confined to older laptops, but a few Acer laptops
 879  * have turned up in 2007 that also need this again.
 880  */
 881 static const struct dmi_system_id __initconst i8042_dmi_dritek_table[] = {
 882         {
 883                 /* Acer Aspire 5100 */
 884                 .matches = {
 885                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 886                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
 887                 },
 888         },
 889         {
 890                 /* Acer Aspire 5610 */
 891                 .matches = {
 892                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 893                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
 894                 },
 895         },
 896         {
 897                 /* Acer Aspire 5630 */
 898                 .matches = {
 899                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 900                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
 901                 },
 902         },
 903         {
 904                 /* Acer Aspire 5650 */
 905                 .matches = {
 906                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 907                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
 908                 },
 909         },
 910         {
 911                 /* Acer Aspire 5680 */
 912                 .matches = {
 913                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 914                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
 915                 },
 916         },
 917         {
 918                 /* Acer Aspire 5720 */
 919                 .matches = {
 920                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 921                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5720"),
 922                 },
 923         },
 924         {
 925                 /* Acer Aspire 9110 */
 926                 .matches = {
 927                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 928                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
 929                 },
 930         },
 931         {
 932                 /* Acer TravelMate 660 */
 933                 .matches = {
 934                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 935                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 660"),
 936                 },
 937         },
 938         {
 939                 /* Acer TravelMate 2490 */
 940                 .matches = {
 941                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 942                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
 943                 },
 944         },
 945         {
 946                 /* Acer TravelMate 4280 */
 947                 .matches = {
 948                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 949                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4280"),
 950                 },
 951         },
 952         { }
 953 };
 954
 955 /*
 956  * Some laptops need keyboard reset before probing for the trackpad to get
 957  * it detected, initialised & finally work.
 958  */
 959 static const struct dmi_system_id __initconst i8042_dmi_kbdreset_table[] = {
 960         {
 961                 /* Gigabyte P35 v2 - Elantech touchpad */
 962                 .matches = {
 963                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 964                         DMI_MATCH(DMI_PRODUCT_NAME, "P35V2"),
 965                 },
 966         },
 967                 {
 968                 /* Aorus branded Gigabyte X3 Plus - Elantech touchpad */
 969                 .matches = {
 970                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 971                         DMI_MATCH(DMI_PRODUCT_NAME, "X3"),
 972                 },
 973         },
 974         {
 975                 /* Gigabyte P34 - Elantech touchpad */
 976                 .matches = {
 977                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 978                         DMI_MATCH(DMI_PRODUCT_NAME, "P34"),
 979                 },
 980         },
 981         {
 982                 /* Gigabyte P57 - Elantech touchpad */
 983                 .matches = {
 984                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 985                         DMI_MATCH(DMI_PRODUCT_NAME, "P57"),
 986                 },
 987         },
 988         {
 989                 /* Schenker XMG C504 - Elantech touchpad */
 990                 .matches = {
 991                         DMI_MATCH(DMI_SYS_VENDOR, "XMG"),
 992                         DMI_MATCH(DMI_PRODUCT_NAME, "C504"),
 993                 },
 994         },
 995         { }
 996 };
 997
 998 static const struct dmi_system_id i8042_dmi_probe_defer_table[] __initconst = {
 999         {
1000                 /* ASUS ZenBook UX425UA */
1001                 .matches = {
1002                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
1003                         DMI_MATCH(DMI_PRODUCT_NAME, "ZenBook UX425UA"),
1004                 },
1005         },
1006         {
1007                 /* ASUS ZenBook UM325UA */
1008                 .matches = {
1009                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
1010                         DMI_MATCH(DMI_PRODUCT_NAME, "ZenBook UX325UA_UM325UA"),
1011                 },
1012         },
1013         { }
1014 };
1015
1016 #endif /* CONFIG_X86 */
1017
1018 #ifdef CONFIG_PNP
1019 #include <linux/pnp.h>
1020
1021 static bool i8042_pnp_kbd_registered;
1022 static unsigned int i8042_pnp_kbd_devices;
1023 static bool i8042_pnp_aux_registered;
1024 static unsigned int i8042_pnp_aux_devices;
1025
1026 static int i8042_pnp_command_reg;
1027 static int i8042_pnp_data_reg;
1028 static int i8042_pnp_kbd_irq;
1029 static int i8042_pnp_aux_irq;
1030
1031 static char i8042_pnp_kbd_name[32];
1032 static char i8042_pnp_aux_name[32];
1033
1034 static void i8042_pnp_id_to_string(struct pnp_id *id, char *dst, int dst_size)
1035 {
1036         strlcpy(dst, "PNP:", dst_size);
1037
1038         while (id) {
1039                 strlcat(dst, " ", dst_size);
1040                 strlcat(dst, id->id, dst_size);
1041                 id = id->next;
1042         }
1043 }
1044
1045 static int i8042_pnp_kbd_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
1046 {
1047         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
1048                 i8042_pnp_data_reg = pnp_port_start(dev,0);
1049
1050         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
1051                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
1052
1053         if (pnp_irq_valid(dev,0))
1054                 i8042_pnp_kbd_irq = pnp_irq(dev, 0);
1055
1056         strlcpy(i8042_pnp_kbd_name, did->id, sizeof(i8042_pnp_kbd_name));
1057         if (strlen(pnp_dev_name(dev))) {
1058                 strlcat(i8042_pnp_kbd_name, ":", sizeof(i8042_pnp_kbd_name));
1059                 strlcat(i8042_pnp_kbd_name, pnp_dev_name(dev), sizeof(i8042_pnp_kbd_name));
1060         }
1061         i8042_pnp_id_to_string(dev->id, i8042_kbd_firmware_id,
1062                                sizeof(i8042_kbd_firmware_id));
1063         i8042_kbd_fwnode = dev_fwnode(&dev->dev);
1064
1065         /* Keyboard ports are always supposed to be wakeup-enabled */
1066         device_set_wakeup_enable(&dev->dev, true);
1067
1068         i8042_pnp_kbd_devices++;
1069         return 0;
1070 }
1071
1072 static int i8042_pnp_aux_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
1073 {
1074         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
1075                 i8042_pnp_data_reg = pnp_port_start(dev,0);
1076
1077         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
1078                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
1079
1080         if (pnp_irq_valid(dev, 0))
1081                 i8042_pnp_aux_irq = pnp_irq(dev, 0);
1082
1083         strlcpy(i8042_pnp_aux_name, did->id, sizeof(i8042_pnp_aux_name));
1084         if (strlen(pnp_dev_name(dev))) {
1085                 strlcat(i8042_pnp_aux_name, ":", sizeof(i8042_pnp_aux_name));
1086                 strlcat(i8042_pnp_aux_name, pnp_dev_name(dev), sizeof(i8042_pnp_aux_name));
1087         }
1088         i8042_pnp_id_to_string(dev->id, i8042_aux_firmware_id,
1089                                sizeof(i8042_aux_firmware_id));
1090
1091         i8042_pnp_aux_devices++;
1092         return 0;
1093 }
1094
1095 static const struct pnp_device_id pnp_kbd_devids[] = {
1096         { .id = "PNP0300", .driver_data = 0 },
1097         { .id = "PNP0301", .driver_data = 0 },
1098         { .id = "PNP0302", .driver_data = 0 },
1099         { .id = "PNP0303", .driver_data = 0 },
1100         { .id = "PNP0304", .driver_data = 0 },
1101         { .id = "PNP0305", .driver_data = 0 },
1102         { .id = "PNP0306", .driver_data = 0 },
1103         { .id = "PNP0309", .driver_data = 0 },
1104         { .id = "PNP030a", .driver_data = 0 },
1105         { .id = "PNP030b", .driver_data = 0 },
1106         { .id = "PNP0320", .driver_data = 0 },
1107         { .id = "PNP0343", .driver_data = 0 },
1108         { .id = "PNP0344", .driver_data = 0 },
1109         { .id = "PNP0345", .driver_data = 0 },
1110         { .id = "CPQA0D7", .driver_data = 0 },
1111         { .id = "", },
1112 };
1113 MODULE_DEVICE_TABLE(pnp, pnp_kbd_devids);
1114
1115 static struct pnp_driver i8042_pnp_kbd_driver = {
1116         .name           = "i8042 kbd",
1117         .id_table       = pnp_kbd_devids,
1118         .probe          = i8042_pnp_kbd_probe,
1119         .driver         = {
1120                 .probe_type = PROBE_FORCE_SYNCHRONOUS,
1121                 .suppress_bind_attrs = true,
1122         },
1123 };
1124
1125 static const struct pnp_device_id pnp_aux_devids[] = {
1126         { .id = "AUI0200", .driver_data = 0 },
1127         { .id = "FJC6000", .driver_data = 0 },
1128         { .id = "FJC6001", .driver_data = 0 },
1129         { .id = "PNP0f03", .driver_data = 0 },
1130         { .id = "PNP0f0b", .driver_data = 0 },
1131         { .id = "PNP0f0e", .driver_data = 0 },
1132         { .id = "PNP0f12", .driver_data = 0 },
1133         { .id = "PNP0f13", .driver_data = 0 },
1134         { .id = "PNP0f19", .driver_data = 0 },
1135         { .id = "PNP0f1c", .driver_data = 0 },
1136         { .id = "SYN0801", .driver_data = 0 },
1137         { .id = "", },
1138 };
1139 MODULE_DEVICE_TABLE(pnp, pnp_aux_devids);
1140
1141 static struct pnp_driver i8042_pnp_aux_driver = {
1142         .name           = "i8042 aux",
1143         .id_table       = pnp_aux_devids,
1144         .probe          = i8042_pnp_aux_probe,
1145         .driver         = {
1146                 .probe_type = PROBE_FORCE_SYNCHRONOUS,
1147                 .suppress_bind_attrs = true,
1148         },
1149 };
1150
1151 static void i8042_pnp_exit(void)
1152 {
1153         if (i8042_pnp_kbd_registered) {
1154                 i8042_pnp_kbd_registered = false;
1155                 pnp_unregister_driver(&i8042_pnp_kbd_driver);
1156         }
1157
1158         if (i8042_pnp_aux_registered) {
1159                 i8042_pnp_aux_registered = false;
1160                 pnp_unregister_driver(&i8042_pnp_aux_driver);
1161         }
1162 }
1163
1164 static int __init i8042_pnp_init(void)
1165 {
1166         char kbd_irq_str[4] = { 0 }, aux_irq_str[4] = { 0 };
1167         bool pnp_data_busted = false;
1168         int err;
1169
1170 #ifdef CONFIG_X86
1171         if (dmi_check_system(i8042_dmi_nopnp_table))
1172                 i8042_nopnp = true;
1173 #endif
1174
1175         if (i8042_nopnp) {
1176                 pr_info("PNP detection disabled\n");
1177                 return 0;
1178         }
1179
1180         err = pnp_register_driver(&i8042_pnp_kbd_driver);
1181         if (!err)
1182                 i8042_pnp_kbd_registered = true;
1183
1184         err = pnp_register_driver(&i8042_pnp_aux_driver);
1185         if (!err)
1186                 i8042_pnp_aux_registered = true;
1187
1188         if (!i8042_pnp_kbd_devices && !i8042_pnp_aux_devices) {
1189                 i8042_pnp_exit();
1190 #if defined(__ia64__)
1191                 return -ENODEV;
1192 #else
1193                 pr_info("PNP: No PS/2 controller found.\n");
1194                 if (x86_platform.legacy.i8042 !=
1195                                 X86_LEGACY_I8042_EXPECTED_PRESENT)
1196                         return -ENODEV;
1197                 pr_info("Probing ports directly.\n");
1198                 return 0;
1199 #endif
1200         }
1201
1202         if (i8042_pnp_kbd_devices)
1203                 snprintf(kbd_irq_str, sizeof(kbd_irq_str),
1204                         "%d", i8042_pnp_kbd_irq);
1205         if (i8042_pnp_aux_devices)
1206                 snprintf(aux_irq_str, sizeof(aux_irq_str),
1207                         "%d", i8042_pnp_aux_irq);
1208
1209         pr_info("PNP: PS/2 Controller [%s%s%s] at %#x,%#x irq %s%s%s\n",
1210                 i8042_pnp_kbd_name, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
1211                 i8042_pnp_aux_name,
1212                 i8042_pnp_data_reg, i8042_pnp_command_reg,
1213                 kbd_irq_str, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
1214                 aux_irq_str);
1215
1216 #if defined(__ia64__)
1217         if (!i8042_pnp_kbd_devices)
1218                 i8042_nokbd = true;
1219         if (!i8042_pnp_aux_devices)
1220                 i8042_noaux = true;
1221 #endif
1222
1223         if (((i8042_pnp_data_reg & ~0xf) == (i8042_data_reg & ~0xf) &&
1224               i8042_pnp_data_reg != i8042_data_reg) ||
1225             !i8042_pnp_data_reg) {
1226                 pr_warn("PNP: PS/2 controller has invalid data port %#x; using default %#x\n",
1227                         i8042_pnp_data_reg, i8042_data_reg);
1228                 i8042_pnp_data_reg = i8042_data_reg;
1229                 pnp_data_busted = true;
1230         }
1231
1232         if (((i8042_pnp_command_reg & ~0xf) == (i8042_command_reg & ~0xf) &&
1233               i8042_pnp_command_reg != i8042_command_reg) ||
1234             !i8042_pnp_command_reg) {
1235                 pr_warn("PNP: PS/2 controller has invalid command port %#x; using default %#x\n",
1236                         i8042_pnp_command_reg, i8042_command_reg);
1237                 i8042_pnp_command_reg = i8042_command_reg;
1238                 pnp_data_busted = true;
1239         }
1240
1241         if (!i8042_nokbd && !i8042_pnp_kbd_irq) {
1242                 pr_warn("PNP: PS/2 controller doesn't have KBD irq; using default %d\n",
1243                         i8042_kbd_irq);
1244                 i8042_pnp_kbd_irq = i8042_kbd_irq;
1245                 pnp_data_busted = true;
1246         }
1247
1248         if (!i8042_noaux && !i8042_pnp_aux_irq) {
1249                 if (!pnp_data_busted && i8042_pnp_kbd_irq) {
1250                         pr_warn("PNP: PS/2 appears to have AUX port disabled, "
1251                                 "if this is incorrect please boot with i8042.nopnp\n");
1252                         i8042_noaux = true;
1253                 } else {
1254                         pr_warn("PNP: PS/2 controller doesn't have AUX irq; using default %d\n",
1255                                 i8042_aux_irq);
1256                         i8042_pnp_aux_irq = i8042_aux_irq;
1257                 }
1258         }
1259
1260         i8042_data_reg = i8042_pnp_data_reg;
1261         i8042_command_reg = i8042_pnp_command_reg;
1262         i8042_kbd_irq = i8042_pnp_kbd_irq;
1263         i8042_aux_irq = i8042_pnp_aux_irq;
1264
1265 #ifdef CONFIG_X86
1266         i8042_bypass_aux_irq_test = !pnp_data_busted &&
1267                                     dmi_check_system(i8042_dmi_laptop_table);
1268 #endif
1269
1270         return 0;
1271 }
1272
1273 #else  /* !CONFIG_PNP */
1274 static inline int i8042_pnp_init(void) { return 0; }
1275 static inline void i8042_pnp_exit(void) { }
1276 #endif /* CONFIG_PNP */
1277
1278 static int __init i8042_platform_init(void)
1279 {
1280         int retval;
1281
1282 #ifdef CONFIG_X86
1283         u8 a20_on = 0xdf;
1284         /* Just return if platform does not have i8042 controller */
1285         if (x86_platform.legacy.i8042 == X86_LEGACY_I8042_PLATFORM_ABSENT)
1286                 return -ENODEV;
1287 #endif
1288
1289 /*
1290  * On ix86 platforms touching the i8042 data register region can do really
1291  * bad things. Because of this the region is always reserved on ix86 boxes.
1292  *
1293  *      if (!request_region(I8042_DATA_REG, 16, "i8042"))
1294  *              return -EBUSY;
1295  */
1296
1297         i8042_kbd_irq = I8042_MAP_IRQ(1);
1298         i8042_aux_irq = I8042_MAP_IRQ(12);
1299
1300         retval = i8042_pnp_init();
1301         if (retval)
1302                 return retval;
1303
1304 #if defined(__ia64__)
1305         i8042_reset = I8042_RESET_ALWAYS;
1306 #endif
1307
1308 #ifdef CONFIG_X86
1309         /* Honor module parameter when value is not default */
1310         if (i8042_reset == I8042_RESET_DEFAULT) {
1311                 if (dmi_check_system(i8042_dmi_reset_table))
1312                         i8042_reset = I8042_RESET_ALWAYS;
1313
1314                 if (dmi_check_system(i8042_dmi_noselftest_table))
1315                         i8042_reset = I8042_RESET_NEVER;
1316         }
1317
1318         if (dmi_check_system(i8042_dmi_noloop_table))
1319                 i8042_noloop = true;
1320
1321         if (dmi_check_system(i8042_dmi_nomux_table))
1322                 i8042_nomux = true;
1323
1324         if (dmi_check_system(i8042_dmi_forcemux_table))
1325                 i8042_nomux = false;
1326
1327         if (dmi_check_system(i8042_dmi_notimeout_table))
1328                 i8042_notimeout = true;
1329
1330         if (dmi_check_system(i8042_dmi_dritek_table))
1331                 i8042_dritek = true;
1332
1333         if (dmi_check_system(i8042_dmi_kbdreset_table))
1334                 i8042_kbdreset = true;
1335
1336         if (dmi_check_system(i8042_dmi_probe_defer_table))
1337                 i8042_probe_defer = true;
1338
1339         /*
1340          * A20 was already enabled during early kernel init. But some buggy
1341          * BIOSes (in MSI Laptops) require A20 to be enabled using 8042 to
1342          * resume from S3. So we do it here and hope that nothing breaks.
1343          */
1344         i8042_command(&a20_on, 0x10d1);
1345         i8042_command(NULL, 0x00ff);    /* Null command for SMM firmware */
1346 #endif /* CONFIG_X86 */
1347
1348         return retval;
1349 }
1350
1351 static inline void i8042_platform_exit(void)
1352 {
1353         i8042_pnp_exit();
1354 }
1355
1356 #endif /* _I8042_X86IA64IO_H */