drivers/input/serio/i8042-x86ia64io.h

   1 #ifndef _I8042_X86IA64IO_H
   2 #define _I8042_X86IA64IO_H
   3
   4 /*
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 as published by
   7  * the Free Software Foundation.
   8  */
   9
  10 /*
  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 struct dmi_system_id __initdata i8042_dmi_noloop_table[] = {
  71         {
  72                 /* AUX LOOP command does not raise AUX IRQ */
  73                 .ident = "Arima-Rioworks HDAMB",
  74                 .matches = {
  75                         DMI_MATCH(DMI_BOARD_VENDOR, "RIOWORKS"),
  76                         DMI_MATCH(DMI_BOARD_NAME, "HDAMB"),
  77                         DMI_MATCH(DMI_BOARD_VERSION, "Rev E"),
  78                 },
  79         },
  80         {
  81                 /* AUX LOOP command does not raise AUX IRQ */
  82                 .ident = "ASUS P65UP5",
  83                 .matches = {
  84                         DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
  85                         DMI_MATCH(DMI_BOARD_NAME, "P/I-P65UP5"),
  86                         DMI_MATCH(DMI_BOARD_VERSION, "REV 2.X"),
  87                 },
  88         },
  89         {
  90                 .ident = "Compaq Proliant 8500",
  91                 .matches = {
  92                         DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
  93                         DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
  94                         DMI_MATCH(DMI_PRODUCT_VERSION, "8500"),
  95                 },
  96         },
  97         {
  98                 .ident = "Compaq Proliant DL760",
  99                 .matches = {
 100                         DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
 101                         DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
 102                         DMI_MATCH(DMI_PRODUCT_VERSION, "DL760"),
 103                 },
 104         },
 105         {
 106                 .ident = "OQO Model 01",
 107                 .matches = {
 108                         DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
 109                         DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
 110                         DMI_MATCH(DMI_PRODUCT_VERSION, "00"),
 111                 },
 112         },
 113         {
 114                 /* AUX LOOP does not work properly */
 115                 .ident = "ULI EV4873",
 116                 .matches = {
 117                         DMI_MATCH(DMI_SYS_VENDOR, "ULI"),
 118                         DMI_MATCH(DMI_PRODUCT_NAME, "EV4873"),
 119                         DMI_MATCH(DMI_PRODUCT_VERSION, "5a"),
 120                 },
 121         },
 122         {
 123                 .ident = "Microsoft Virtual Machine",
 124                 .matches = {
 125                         DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
 126                         DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"),
 127                         DMI_MATCH(DMI_PRODUCT_VERSION, "VS2005R2"),
 128                 },
 129         },
 130         {
 131                 .ident = "Medion MAM 2070",
 132                 .matches = {
 133                         DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
 134                         DMI_MATCH(DMI_PRODUCT_NAME, "MAM 2070"),
 135                         DMI_MATCH(DMI_PRODUCT_VERSION, "5a"),
 136                 },
 137         },
 138         { }
 139 };
 140
 141 /*
 142  * Some Fujitsu notebooks are having trouble with touchpads if
 143  * active multiplexing mode is activated. Luckily they don't have
 144  * external PS/2 ports so we can safely disable it.
 145  * ... apparently some Toshibas don't like MUX mode either and
 146  * die horrible death on reboot.
 147  */
 148 static struct dmi_system_id __initdata i8042_dmi_nomux_table[] = {
 149         {
 150                 .ident = "Fujitsu Lifebook P7010/P7010D",
 151                 .matches = {
 152                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 153                         DMI_MATCH(DMI_PRODUCT_NAME, "P7010"),
 154                 },
 155         },
 156         {
 157                 .ident = "Fujitsu Lifebook P7010",
 158                 .matches = {
 159                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 160                         DMI_MATCH(DMI_PRODUCT_NAME, "0000000000"),
 161                 },
 162         },
 163         {
 164                 .ident = "Fujitsu Lifebook P5020D",
 165                 .matches = {
 166                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 167                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P Series"),
 168                 },
 169         },
 170         {
 171                 .ident = "Fujitsu Lifebook S2000",
 172                 .matches = {
 173                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 174                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S Series"),
 175                 },
 176         },
 177         {
 178                 .ident = "Fujitsu Lifebook S6230",
 179                 .matches = {
 180                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 181                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S6230"),
 182                 },
 183         },
 184         {
 185                 .ident = "Fujitsu T70H",
 186                 .matches = {
 187                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 188                         DMI_MATCH(DMI_PRODUCT_NAME, "FMVLT70H"),
 189                 },
 190         },
 191         {
 192                 .ident = "Fujitsu-Siemens Lifebook T3010",
 193                 .matches = {
 194                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 195                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK T3010"),
 196                 },
 197         },
 198         {
 199                 .ident = "Fujitsu-Siemens Lifebook E4010",
 200                 .matches = {
 201                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 202                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E4010"),
 203                 },
 204         },
 205         {
 206                 .ident = "Fujitsu-Siemens Amilo Pro 2010",
 207                 .matches = {
 208                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 209                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro V2010"),
 210                 },
 211         },
 212         {
 213                 .ident = "Fujitsu-Siemens Amilo Pro 2030",
 214                 .matches = {
 215                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 216                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"),
 217                 },
 218         },
 219         {
 220                 /*
 221                  * No data is coming from the touchscreen unless KBC
 222                  * is in legacy mode.
 223                  */
 224                 .ident = "Panasonic CF-29",
 225                 .matches = {
 226                         DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
 227                         DMI_MATCH(DMI_PRODUCT_NAME, "CF-29"),
 228                 },
 229         },
 230         {
 231                 /*
 232                  * Errors on MUX ports are reported without raising AUXDATA
 233                  * causing "spurious NAK" messages.
 234                  */
 235                 .ident = "HP Pavilion DV4017EA",
 236                 .matches = {
 237                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 238                         DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EA032EA#ABF)"),
 239                 },
 240         },
 241         {
 242                 /*
 243                  * Like DV4017EA does not raise AUXERR for errors on MUX ports.
 244                  */
 245                 .ident = "HP Pavilion ZT1000",
 246                 .matches = {
 247                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 248                         DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion Notebook PC"),
 249                         DMI_MATCH(DMI_PRODUCT_VERSION, "HP Pavilion Notebook ZT1000"),
 250                 },
 251         },
 252         {
 253                 /*
 254                  * Like DV4017EA does not raise AUXERR for errors on MUX ports.
 255                  */
 256                 .ident = "HP Pavilion DV4270ca",
 257                 .matches = {
 258                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 259                         DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EH476UA#ABL)"),
 260                 },
 261         },
 262         {
 263                 .ident = "Toshiba P10",
 264                 .matches = {
 265                         DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 266                         DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P10"),
 267                 },
 268         },
 269         {
 270                 .ident = "Toshiba Equium A110",
 271                 .matches = {
 272                         DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 273                         DMI_MATCH(DMI_PRODUCT_NAME, "EQUIUM A110"),
 274                 },
 275         },
 276         {
 277                 .ident = "Alienware Sentia",
 278                 .matches = {
 279                         DMI_MATCH(DMI_SYS_VENDOR, "ALIENWARE"),
 280                         DMI_MATCH(DMI_PRODUCT_NAME, "Sentia"),
 281                 },
 282         },
 283         {
 284                 .ident = "Sharp Actius MM20",
 285                 .matches = {
 286                         DMI_MATCH(DMI_SYS_VENDOR, "SHARP"),
 287                         DMI_MATCH(DMI_PRODUCT_NAME, "PC-MM20 Series"),
 288                 },
 289         },
 290         {
 291                 .ident = "Sony Vaio FS-115b",
 292                 .matches = {
 293                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 294                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FS115B"),
 295                 },
 296         },
 297         {
 298                 .ident = "Amoi M636/A737",
 299                 .matches = {
 300                         DMI_MATCH(DMI_SYS_VENDOR, "Amoi Electronics CO.,LTD."),
 301                         DMI_MATCH(DMI_PRODUCT_NAME, "M636/A737 platform"),
 302                 },
 303         },
 304         {
 305                 .ident = "Lenovo 3000 n100",
 306                 .matches = {
 307                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 308                         DMI_MATCH(DMI_PRODUCT_NAME, "076804U"),
 309                 },
 310         },
 311         {
 312                 .ident = "Acer Aspire 1360",
 313                 .matches = {
 314                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 315                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
 316                 },
 317         },
 318         {
 319                 .ident = "Gericom Bellagio",
 320                 .matches = {
 321                         DMI_MATCH(DMI_SYS_VENDOR, "Gericom"),
 322                         DMI_MATCH(DMI_PRODUCT_NAME, "N34AS6"),
 323                 },
 324         },
 325         { }
 326 };
 327
 328 #ifdef CONFIG_PNP
 329 static struct dmi_system_id __initdata i8042_dmi_nopnp_table[] = {
 330         {
 331                 .ident = "Intel MBO Desktop D845PESV",
 332                 .matches = {
 333                         DMI_MATCH(DMI_BOARD_NAME, "D845PESV"),
 334                         DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
 335                 },
 336         },
 337         { }
 338 };
 339 #endif
 340
 341 /*
 342  * Some Wistron based laptops need us to explicitly enable the 'Dritek
 343  * keyboard extension' to make their extra keys start generating scancodes.
 344  * Originally, this was just confined to older laptops, but a few Acer laptops
 345  * have turned up in 2007 that also need this again.
 346  */
 347 static struct dmi_system_id __initdata i8042_dmi_dritek_table[] = {
 348         {
 349                 .ident = "Acer Aspire 5630",
 350                 .matches = {
 351                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 352                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
 353                 },
 354         },
 355         {
 356                 .ident = "Acer Aspire 5650",
 357                 .matches = {
 358                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 359                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
 360                 },
 361         },
 362         {
 363                 .ident = "Acer Aspire 5680",
 364                 .matches = {
 365                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 366                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
 367                 },
 368         },
 369         {
 370                 .ident = "Acer Aspire 5720",
 371                 .matches = {
 372                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 373                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5720"),
 374                 },
 375         },
 376         {
 377                 .ident = "Acer Aspire 9110",
 378                 .matches = {
 379                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 380                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
 381                 },
 382         },
 383         {
 384                 .ident = "Acer TravelMate 660",
 385                 .matches = {
 386                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 387                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 660"),
 388                 },
 389         },
 390         {
 391                 .ident = "Acer TravelMate 2490",
 392                 .matches = {
 393                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 394                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
 395                 },
 396         },
 397         {
 398                 .ident = "Acer TravelMate 4280",
 399                 .matches = {
 400                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 401                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4280"),
 402                 },
 403         },
 404         { }
 405 };
 406
 407 #endif /* CONFIG_X86 */
 408
 409 #ifdef CONFIG_PNP
 410 #include <linux/pnp.h>
 411
 412 static int i8042_pnp_kbd_registered;
 413 static unsigned int i8042_pnp_kbd_devices;
 414 static int i8042_pnp_aux_registered;
 415 static unsigned int i8042_pnp_aux_devices;
 416
 417 static int i8042_pnp_command_reg;
 418 static int i8042_pnp_data_reg;
 419 static int i8042_pnp_kbd_irq;
 420 static int i8042_pnp_aux_irq;
 421
 422 static char i8042_pnp_kbd_name[32];
 423 static char i8042_pnp_aux_name[32];
 424
 425 static int i8042_pnp_kbd_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
 426 {
 427         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
 428                 i8042_pnp_data_reg = pnp_port_start(dev,0);
 429
 430         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
 431                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
 432
 433         if (pnp_irq_valid(dev,0))
 434                 i8042_pnp_kbd_irq = pnp_irq(dev, 0);
 435
 436         strlcpy(i8042_pnp_kbd_name, did->id, sizeof(i8042_pnp_kbd_name));
 437         if (strlen(pnp_dev_name(dev))) {
 438                 strlcat(i8042_pnp_kbd_name, ":", sizeof(i8042_pnp_kbd_name));
 439                 strlcat(i8042_pnp_kbd_name, pnp_dev_name(dev), sizeof(i8042_pnp_kbd_name));
 440         }
 441
 442         i8042_pnp_kbd_devices++;
 443         return 0;
 444 }
 445
 446 static int i8042_pnp_aux_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
 447 {
 448         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
 449                 i8042_pnp_data_reg = pnp_port_start(dev,0);
 450
 451         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
 452                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
 453
 454         if (pnp_irq_valid(dev, 0))
 455                 i8042_pnp_aux_irq = pnp_irq(dev, 0);
 456
 457         strlcpy(i8042_pnp_aux_name, did->id, sizeof(i8042_pnp_aux_name));
 458         if (strlen(pnp_dev_name(dev))) {
 459                 strlcat(i8042_pnp_aux_name, ":", sizeof(i8042_pnp_aux_name));
 460                 strlcat(i8042_pnp_aux_name, pnp_dev_name(dev), sizeof(i8042_pnp_aux_name));
 461         }
 462
 463         i8042_pnp_aux_devices++;
 464         return 0;
 465 }
 466
 467 static struct pnp_device_id pnp_kbd_devids[] = {
 468         { .id = "PNP0303", .driver_data = 0 },
 469         { .id = "PNP030b", .driver_data = 0 },
 470         { .id = "", },
 471 };
 472
 473 static struct pnp_driver i8042_pnp_kbd_driver = {
 474         .name           = "i8042 kbd",
 475         .id_table       = pnp_kbd_devids,
 476         .probe          = i8042_pnp_kbd_probe,
 477 };
 478
 479 static struct pnp_device_id pnp_aux_devids[] = {
 480         { .id = "FJC6000", .driver_data = 0 },
 481         { .id = "FJC6001", .driver_data = 0 },
 482         { .id = "PNP0f03", .driver_data = 0 },
 483         { .id = "PNP0f0b", .driver_data = 0 },
 484         { .id = "PNP0f0e", .driver_data = 0 },
 485         { .id = "PNP0f12", .driver_data = 0 },
 486         { .id = "PNP0f13", .driver_data = 0 },
 487         { .id = "PNP0f19", .driver_data = 0 },
 488         { .id = "PNP0f1c", .driver_data = 0 },
 489         { .id = "SYN0801", .driver_data = 0 },
 490         { .id = "", },
 491 };
 492
 493 static struct pnp_driver i8042_pnp_aux_driver = {
 494         .name           = "i8042 aux",
 495         .id_table       = pnp_aux_devids,
 496         .probe          = i8042_pnp_aux_probe,
 497 };
 498
 499 static void i8042_pnp_exit(void)
 500 {
 501         if (i8042_pnp_kbd_registered) {
 502                 i8042_pnp_kbd_registered = 0;
 503                 pnp_unregister_driver(&i8042_pnp_kbd_driver);
 504         }
 505
 506         if (i8042_pnp_aux_registered) {
 507                 i8042_pnp_aux_registered = 0;
 508                 pnp_unregister_driver(&i8042_pnp_aux_driver);
 509         }
 510 }
 511
 512 static int __init i8042_pnp_init(void)
 513 {
 514         char kbd_irq_str[4] = { 0 }, aux_irq_str[4] = { 0 };
 515         int pnp_data_busted = 0;
 516         int err;
 517
 518 #ifdef CONFIG_X86
 519         if (dmi_check_system(i8042_dmi_nopnp_table))
 520                 i8042_nopnp = 1;
 521 #endif
 522
 523         if (i8042_nopnp) {
 524                 printk(KERN_INFO "i8042: PNP detection disabled\n");
 525                 return 0;
 526         }
 527
 528         err = pnp_register_driver(&i8042_pnp_kbd_driver);
 529         if (!err)
 530                 i8042_pnp_kbd_registered = 1;
 531
 532         err = pnp_register_driver(&i8042_pnp_aux_driver);
 533         if (!err)
 534                 i8042_pnp_aux_registered = 1;
 535
 536         if (!i8042_pnp_kbd_devices && !i8042_pnp_aux_devices) {
 537                 i8042_pnp_exit();
 538 #if defined(__ia64__)
 539                 return -ENODEV;
 540 #else
 541                 printk(KERN_INFO "PNP: No PS/2 controller found. Probing ports directly.\n");
 542                 return 0;
 543 #endif
 544         }
 545
 546         if (i8042_pnp_kbd_devices)
 547                 snprintf(kbd_irq_str, sizeof(kbd_irq_str),
 548                         "%d", i8042_pnp_kbd_irq);
 549         if (i8042_pnp_aux_devices)
 550                 snprintf(aux_irq_str, sizeof(aux_irq_str),
 551                         "%d", i8042_pnp_aux_irq);
 552
 553         printk(KERN_INFO "PNP: PS/2 Controller [%s%s%s] at %#x,%#x irq %s%s%s\n",
 554                 i8042_pnp_kbd_name, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
 555                 i8042_pnp_aux_name,
 556                 i8042_pnp_data_reg, i8042_pnp_command_reg,
 557                 kbd_irq_str, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
 558                 aux_irq_str);
 559
 560 #if defined(__ia64__)
 561         if (!i8042_pnp_kbd_devices)
 562                 i8042_nokbd = 1;
 563         if (!i8042_pnp_aux_devices)
 564                 i8042_noaux = 1;
 565 #endif
 566
 567         if (((i8042_pnp_data_reg & ~0xf) == (i8042_data_reg & ~0xf) &&
 568               i8042_pnp_data_reg != i8042_data_reg) ||
 569             !i8042_pnp_data_reg) {
 570                 printk(KERN_WARNING
 571                         "PNP: PS/2 controller has invalid data port %#x; "
 572                         "using default %#x\n",
 573                         i8042_pnp_data_reg, i8042_data_reg);
 574                 i8042_pnp_data_reg = i8042_data_reg;
 575                 pnp_data_busted = 1;
 576         }
 577
 578         if (((i8042_pnp_command_reg & ~0xf) == (i8042_command_reg & ~0xf) &&
 579               i8042_pnp_command_reg != i8042_command_reg) ||
 580             !i8042_pnp_command_reg) {
 581                 printk(KERN_WARNING
 582                         "PNP: PS/2 controller has invalid command port %#x; "
 583                         "using default %#x\n",
 584                         i8042_pnp_command_reg, i8042_command_reg);
 585                 i8042_pnp_command_reg = i8042_command_reg;
 586                 pnp_data_busted = 1;
 587         }
 588
 589         if (!i8042_nokbd && !i8042_pnp_kbd_irq) {
 590                 printk(KERN_WARNING
 591                         "PNP: PS/2 controller doesn't have KBD irq; "
 592                         "using default %d\n", i8042_kbd_irq);
 593                 i8042_pnp_kbd_irq = i8042_kbd_irq;
 594                 pnp_data_busted = 1;
 595         }
 596
 597         if (!i8042_noaux && !i8042_pnp_aux_irq) {
 598                 if (!pnp_data_busted && i8042_pnp_kbd_irq) {
 599                         printk(KERN_WARNING
 600                                 "PNP: PS/2 appears to have AUX port disabled, "
 601                                 "if this is incorrect please boot with "
 602                                 "i8042.nopnp\n");
 603                         i8042_noaux = 1;
 604                 } else {
 605                         printk(KERN_WARNING
 606                                 "PNP: PS/2 controller doesn't have AUX irq; "
 607                                 "using default %d\n", i8042_aux_irq);
 608                         i8042_pnp_aux_irq = i8042_aux_irq;
 609                 }
 610         }
 611
 612         i8042_data_reg = i8042_pnp_data_reg;
 613         i8042_command_reg = i8042_pnp_command_reg;
 614         i8042_kbd_irq = i8042_pnp_kbd_irq;
 615         i8042_aux_irq = i8042_pnp_aux_irq;
 616
 617         return 0;
 618 }
 619
 620 #else
 621 static inline int i8042_pnp_init(void) { return 0; }
 622 static inline void i8042_pnp_exit(void) { }
 623 #endif
 624
 625 static int __init i8042_platform_init(void)
 626 {
 627         int retval;
 628
 629 /*
 630  * On ix86 platforms touching the i8042 data register region can do really
 631  * bad things. Because of this the region is always reserved on ix86 boxes.
 632  *
 633  *      if (!request_region(I8042_DATA_REG, 16, "i8042"))
 634  *              return -EBUSY;
 635  */
 636
 637         i8042_kbd_irq = I8042_MAP_IRQ(1);
 638         i8042_aux_irq = I8042_MAP_IRQ(12);
 639
 640         retval = i8042_pnp_init();
 641         if (retval)
 642                 return retval;
 643
 644 #if defined(__ia64__)
 645         i8042_reset = 1;
 646 #endif
 647
 648 #ifdef CONFIG_X86
 649         if (dmi_check_system(i8042_dmi_noloop_table))
 650                 i8042_noloop = 1;
 651
 652         if (dmi_check_system(i8042_dmi_nomux_table))
 653                 i8042_nomux = 1;
 654
 655         if (dmi_check_system(i8042_dmi_dritek_table))
 656                 i8042_dritek = 1;
 657 #endif /* CONFIG_X86 */
 658
 659         return retval;
 660 }
 661
 662 static inline void i8042_platform_exit(void)
 663 {
 664         i8042_pnp_exit();
 665 }
 666
 667 #endif /* _I8042_X86IA64IO_H */