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 #if defined(__i386__) || defined(__x86_64__)
  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 = "ASUS P65UP5",
  74                 .matches = {
  75                         DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
  76                         DMI_MATCH(DMI_BOARD_NAME, "P/I-P65UP5"),
  77                         DMI_MATCH(DMI_BOARD_VERSION, "REV 2.X"),
  78                 },
  79         },
  80         {
  81                 .ident = "Compaq Proliant 8500",
  82                 .matches = {
  83                         DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
  84                         DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
  85                         DMI_MATCH(DMI_PRODUCT_VERSION, "8500"),
  86                 },
  87         },
  88         {
  89                 .ident = "Compaq Proliant DL760",
  90                 .matches = {
  91                         DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
  92                         DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
  93                         DMI_MATCH(DMI_PRODUCT_VERSION, "DL760"),
  94                 },
  95         },
  96         {
  97                 .ident = "OQO Model 01",
  98                 .matches = {
  99                         DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
 100                         DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
 101                         DMI_MATCH(DMI_PRODUCT_VERSION, "00"),
 102                 },
 103         },
 104         {
 105                 /* AUX LOOP does not work properly */
 106                 .ident = "ULI EV4873",
 107                 .matches = {
 108                         DMI_MATCH(DMI_SYS_VENDOR, "ULI"),
 109                         DMI_MATCH(DMI_PRODUCT_NAME, "EV4873"),
 110                         DMI_MATCH(DMI_PRODUCT_VERSION, "5a"),
 111                 },
 112         },
 113         {
 114                 .ident = "Microsoft Virtual Machine",
 115                 .matches = {
 116                         DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
 117                         DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"),
 118                         DMI_MATCH(DMI_PRODUCT_VERSION, "VS2005R2"),
 119                 },
 120         },
 121         { }
 122 };
 123
 124 /*
 125  * Some Fujitsu notebooks are having trouble with touchpads if
 126  * active multiplexing mode is activated. Luckily they don't have
 127  * external PS/2 ports so we can safely disable it.
 128  * ... apparently some Toshibas don't like MUX mode either and
 129  * die horrible death on reboot.
 130  */
 131 static struct dmi_system_id __initdata i8042_dmi_nomux_table[] = {
 132         {
 133                 .ident = "Fujitsu Lifebook P7010/P7010D",
 134                 .matches = {
 135                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 136                         DMI_MATCH(DMI_PRODUCT_NAME, "P7010"),
 137                 },
 138         },
 139         {
 140                 .ident = "Fujitsu Lifebook P7010",
 141                 .matches = {
 142                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 143                         DMI_MATCH(DMI_PRODUCT_NAME, "0000000000"),
 144                 },
 145         },
 146         {
 147                 .ident = "Fujitsu Lifebook P5020D",
 148                 .matches = {
 149                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 150                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P Series"),
 151                 },
 152         },
 153         {
 154                 .ident = "Fujitsu Lifebook S2000",
 155                 .matches = {
 156                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 157                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S Series"),
 158                 },
 159         },
 160         {
 161                 .ident = "Fujitsu Lifebook S6230",
 162                 .matches = {
 163                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 164                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S6230"),
 165                 },
 166         },
 167         {
 168                 .ident = "Fujitsu T70H",
 169                 .matches = {
 170                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 171                         DMI_MATCH(DMI_PRODUCT_NAME, "FMVLT70H"),
 172                 },
 173         },
 174         {
 175                 .ident = "Fujitsu-Siemens Lifebook T3010",
 176                 .matches = {
 177                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 178                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK T3010"),
 179                 },
 180         },
 181         {
 182                 .ident = "Fujitsu-Siemens Lifebook E4010",
 183                 .matches = {
 184                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 185                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E4010"),
 186                 },
 187         },
 188         {
 189                 .ident = "Fujitsu-Siemens Amilo Pro 2010",
 190                 .matches = {
 191                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 192                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro V2010"),
 193                 },
 194         },
 195         {
 196                 /*
 197                  * No data is coming from the touchscreen unless KBC
 198                  * is in legacy mode.
 199                  */
 200                 .ident = "Panasonic CF-29",
 201                 .matches = {
 202                         DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
 203                         DMI_MATCH(DMI_PRODUCT_NAME, "CF-29"),
 204                 },
 205         },
 206         {
 207                 /*
 208                  * Errors on MUX ports are reported without raising AUXDATA
 209                  * causing "spurious NAK" messages.
 210                  */
 211                 .ident = "HP Pavilion DV4017EA",
 212                 .matches = {
 213                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 214                         DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EA032EA#ABF)"),
 215                 },
 216         },
 217         {
 218                 /*
 219                  * Like DV4017EA does not raise AUXERR for errors on MUX ports.
 220                  */
 221                 .ident = "HP Pavilion ZT1000",
 222                 .matches = {
 223                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 224                         DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion Notebook PC"),
 225                         DMI_MATCH(DMI_PRODUCT_VERSION, "HP Pavilion Notebook ZT1000"),
 226                 },
 227         },
 228         {
 229                 /*
 230                  * Like DV4017EA does not raise AUXERR for errors on MUX ports.
 231                  */
 232                 .ident = "HP Pavilion DV4270ca",
 233                 .matches = {
 234                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 235                         DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EH476UA#ABL)"),
 236                 },
 237         },
 238         {
 239                 .ident = "Toshiba P10",
 240                 .matches = {
 241                         DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 242                         DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P10"),
 243                 },
 244         },
 245         {
 246                 .ident = "Toshiba Equium A110",
 247                 .matches = {
 248                         DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 249                         DMI_MATCH(DMI_PRODUCT_NAME, "EQUIUM A110"),
 250                 },
 251         },
 252         {
 253                 .ident = "Alienware Sentia",
 254                 .matches = {
 255                         DMI_MATCH(DMI_SYS_VENDOR, "ALIENWARE"),
 256                         DMI_MATCH(DMI_PRODUCT_NAME, "Sentia"),
 257                 },
 258         },
 259         {
 260                 .ident = "Sharp Actius MM20",
 261                 .matches = {
 262                         DMI_MATCH(DMI_SYS_VENDOR, "SHARP"),
 263                         DMI_MATCH(DMI_PRODUCT_NAME, "PC-MM20 Series"),
 264                 },
 265         },
 266         {
 267                 .ident = "Sony Vaio FS-115b",
 268                 .matches = {
 269                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 270                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FS115B"),
 271                 },
 272         },
 273         {
 274                 .ident = "Amoi M636/A737",
 275                 .matches = {
 276                         DMI_MATCH(DMI_SYS_VENDOR, "Amoi Electronics CO.,LTD."),
 277                         DMI_MATCH(DMI_PRODUCT_NAME, "M636/A737 platform"),
 278                 },
 279         },
 280         {
 281                 .ident = "Lenovo 3000 n100",
 282                 .matches = {
 283                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 284                         DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
 285                 },
 286         },
 287         { }
 288 };
 289
 290
 291
 292 #endif
 293
 294 #ifdef CONFIG_X86
 295
 296 #include <linux/dmi.h>
 297
 298 /*
 299  * Some Wistron based laptops need us to explicitly enable the 'Dritek
 300  * keyboard extension' to make their extra keys start generating scancodes.
 301  * Originally, this was just confined to older laptops, but a few Acer laptops
 302  * have turned up in 2007 that also need this again.
 303  */
 304 static struct dmi_system_id __initdata i8042_dmi_dritek_table[] = {
 305         {
 306                 .ident = "Acer Aspire 5630",
 307                 .matches = {
 308                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 309                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
 310                 },
 311         },
 312         {
 313                 .ident = "Acer Aspire 5650",
 314                 .matches = {
 315                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 316                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
 317                 },
 318         },
 319         {
 320                 .ident = "Acer Aspire 5680",
 321                 .matches = {
 322                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 323                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
 324                 },
 325         },
 326         {
 327                 .ident = "Acer Aspire 9110",
 328                 .matches = {
 329                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 330                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
 331                 },
 332         },
 333         {
 334                 .ident = "Acer TravelMate 660",
 335                 .matches = {
 336                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 337                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 660"),
 338                 },
 339         },
 340         {
 341                 .ident = "Acer TravelMate 2490",
 342                 .matches = {
 343                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 344                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
 345                 },
 346         },
 347         { }
 348 };
 349
 350 #endif /* CONFIG_X86 */
 351
 352
 353 #ifdef CONFIG_PNP
 354 #include <linux/pnp.h>
 355
 356 static int i8042_pnp_kbd_registered;
 357 static unsigned int i8042_pnp_kbd_devices;
 358 static int i8042_pnp_aux_registered;
 359 static unsigned int i8042_pnp_aux_devices;
 360
 361 static int i8042_pnp_command_reg;
 362 static int i8042_pnp_data_reg;
 363 static int i8042_pnp_kbd_irq;
 364 static int i8042_pnp_aux_irq;
 365
 366 static char i8042_pnp_kbd_name[32];
 367 static char i8042_pnp_aux_name[32];
 368
 369 static int i8042_pnp_kbd_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
 370 {
 371         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
 372                 i8042_pnp_data_reg = pnp_port_start(dev,0);
 373
 374         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
 375                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
 376
 377         if (pnp_irq_valid(dev,0))
 378                 i8042_pnp_kbd_irq = pnp_irq(dev, 0);
 379
 380         strlcpy(i8042_pnp_kbd_name, did->id, sizeof(i8042_pnp_kbd_name));
 381         if (strlen(pnp_dev_name(dev))) {
 382                 strlcat(i8042_pnp_kbd_name, ":", sizeof(i8042_pnp_kbd_name));
 383                 strlcat(i8042_pnp_kbd_name, pnp_dev_name(dev), sizeof(i8042_pnp_kbd_name));
 384         }
 385
 386         i8042_pnp_kbd_devices++;
 387         return 0;
 388 }
 389
 390 static int i8042_pnp_aux_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
 391 {
 392         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
 393                 i8042_pnp_data_reg = pnp_port_start(dev,0);
 394
 395         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
 396                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
 397
 398         if (pnp_irq_valid(dev, 0))
 399                 i8042_pnp_aux_irq = pnp_irq(dev, 0);
 400
 401         strlcpy(i8042_pnp_aux_name, did->id, sizeof(i8042_pnp_aux_name));
 402         if (strlen(pnp_dev_name(dev))) {
 403                 strlcat(i8042_pnp_aux_name, ":", sizeof(i8042_pnp_aux_name));
 404                 strlcat(i8042_pnp_aux_name, pnp_dev_name(dev), sizeof(i8042_pnp_aux_name));
 405         }
 406
 407         i8042_pnp_aux_devices++;
 408         return 0;
 409 }
 410
 411 static struct pnp_device_id pnp_kbd_devids[] = {
 412         { .id = "PNP0303", .driver_data = 0 },
 413         { .id = "PNP030b", .driver_data = 0 },
 414         { .id = "", },
 415 };
 416
 417 static struct pnp_driver i8042_pnp_kbd_driver = {
 418         .name           = "i8042 kbd",
 419         .id_table       = pnp_kbd_devids,
 420         .probe          = i8042_pnp_kbd_probe,
 421 };
 422
 423 static struct pnp_device_id pnp_aux_devids[] = {
 424         { .id = "FJC6000", .driver_data = 0 },
 425         { .id = "FJC6001", .driver_data = 0 },
 426         { .id = "PNP0f03", .driver_data = 0 },
 427         { .id = "PNP0f0b", .driver_data = 0 },
 428         { .id = "PNP0f0e", .driver_data = 0 },
 429         { .id = "PNP0f12", .driver_data = 0 },
 430         { .id = "PNP0f13", .driver_data = 0 },
 431         { .id = "PNP0f19", .driver_data = 0 },
 432         { .id = "PNP0f1c", .driver_data = 0 },
 433         { .id = "SYN0801", .driver_data = 0 },
 434         { .id = "", },
 435 };
 436
 437 static struct pnp_driver i8042_pnp_aux_driver = {
 438         .name           = "i8042 aux",
 439         .id_table       = pnp_aux_devids,
 440         .probe          = i8042_pnp_aux_probe,
 441 };
 442
 443 static void i8042_pnp_exit(void)
 444 {
 445         if (i8042_pnp_kbd_registered) {
 446                 i8042_pnp_kbd_registered = 0;
 447                 pnp_unregister_driver(&i8042_pnp_kbd_driver);
 448         }
 449
 450         if (i8042_pnp_aux_registered) {
 451                 i8042_pnp_aux_registered = 0;
 452                 pnp_unregister_driver(&i8042_pnp_aux_driver);
 453         }
 454 }
 455
 456 static int __init i8042_pnp_init(void)
 457 {
 458         char kbd_irq_str[4] = { 0 }, aux_irq_str[4] = { 0 };
 459         int pnp_data_busted = 0;
 460         int err;
 461
 462         if (i8042_nopnp) {
 463                 printk(KERN_INFO "i8042: PNP detection disabled\n");
 464                 return 0;
 465         }
 466
 467         err = pnp_register_driver(&i8042_pnp_kbd_driver);
 468         if (!err)
 469                 i8042_pnp_kbd_registered = 1;
 470
 471         err = pnp_register_driver(&i8042_pnp_aux_driver);
 472         if (!err)
 473                 i8042_pnp_aux_registered = 1;
 474
 475         if (!i8042_pnp_kbd_devices && !i8042_pnp_aux_devices) {
 476                 i8042_pnp_exit();
 477 #if defined(__ia64__)
 478                 return -ENODEV;
 479 #else
 480                 printk(KERN_INFO "PNP: No PS/2 controller found. Probing ports directly.\n");
 481                 return 0;
 482 #endif
 483         }
 484
 485         if (i8042_pnp_kbd_devices)
 486                 snprintf(kbd_irq_str, sizeof(kbd_irq_str),
 487                         "%d", i8042_pnp_kbd_irq);
 488         if (i8042_pnp_aux_devices)
 489                 snprintf(aux_irq_str, sizeof(aux_irq_str),
 490                         "%d", i8042_pnp_aux_irq);
 491
 492         printk(KERN_INFO "PNP: PS/2 Controller [%s%s%s] at %#x,%#x irq %s%s%s\n",
 493                 i8042_pnp_kbd_name, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
 494                 i8042_pnp_aux_name,
 495                 i8042_pnp_data_reg, i8042_pnp_command_reg,
 496                 kbd_irq_str, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
 497                 aux_irq_str);
 498
 499 #if defined(__ia64__)
 500         if (!i8042_pnp_kbd_devices)
 501                 i8042_nokbd = 1;
 502         if (!i8042_pnp_aux_devices)
 503                 i8042_noaux = 1;
 504 #endif
 505
 506         if (((i8042_pnp_data_reg & ~0xf) == (i8042_data_reg & ~0xf) &&
 507               i8042_pnp_data_reg != i8042_data_reg) ||
 508             !i8042_pnp_data_reg) {
 509                 printk(KERN_WARNING
 510                         "PNP: PS/2 controller has invalid data port %#x; "
 511                         "using default %#x\n",
 512                         i8042_pnp_data_reg, i8042_data_reg);
 513                 i8042_pnp_data_reg = i8042_data_reg;
 514                 pnp_data_busted = 1;
 515         }
 516
 517         if (((i8042_pnp_command_reg & ~0xf) == (i8042_command_reg & ~0xf) &&
 518               i8042_pnp_command_reg != i8042_command_reg) ||
 519             !i8042_pnp_command_reg) {
 520                 printk(KERN_WARNING
 521                         "PNP: PS/2 controller has invalid command port %#x; "
 522                         "using default %#x\n",
 523                         i8042_pnp_command_reg, i8042_command_reg);
 524                 i8042_pnp_command_reg = i8042_command_reg;
 525                 pnp_data_busted = 1;
 526         }
 527
 528         if (!i8042_nokbd && !i8042_pnp_kbd_irq) {
 529                 printk(KERN_WARNING
 530                         "PNP: PS/2 controller doesn't have KBD irq; "
 531                         "using default %d\n", i8042_kbd_irq);
 532                 i8042_pnp_kbd_irq = i8042_kbd_irq;
 533                 pnp_data_busted = 1;
 534         }
 535
 536         if (!i8042_noaux && !i8042_pnp_aux_irq) {
 537                 if (!pnp_data_busted && i8042_pnp_kbd_irq) {
 538                         printk(KERN_WARNING
 539                                 "PNP: PS/2 appears to have AUX port disabled, "
 540                                 "if this is incorrect please boot with "
 541                                 "i8042.nopnp\n");
 542                         i8042_noaux = 1;
 543                 } else {
 544                         printk(KERN_WARNING
 545                                 "PNP: PS/2 controller doesn't have AUX irq; "
 546                                 "using default %d\n", i8042_aux_irq);
 547                         i8042_pnp_aux_irq = i8042_aux_irq;
 548                 }
 549         }
 550
 551         i8042_data_reg = i8042_pnp_data_reg;
 552         i8042_command_reg = i8042_pnp_command_reg;
 553         i8042_kbd_irq = i8042_pnp_kbd_irq;
 554         i8042_aux_irq = i8042_pnp_aux_irq;
 555
 556         return 0;
 557 }
 558
 559 #else
 560 static inline int i8042_pnp_init(void) { return 0; }
 561 static inline void i8042_pnp_exit(void) { }
 562 #endif
 563
 564 static int __init i8042_platform_init(void)
 565 {
 566         int retval;
 567
 568 /*
 569  * On ix86 platforms touching the i8042 data register region can do really
 570  * bad things. Because of this the region is always reserved on ix86 boxes.
 571  *
 572  *      if (!request_region(I8042_DATA_REG, 16, "i8042"))
 573  *              return -EBUSY;
 574  */
 575
 576         i8042_kbd_irq = I8042_MAP_IRQ(1);
 577         i8042_aux_irq = I8042_MAP_IRQ(12);
 578
 579         retval = i8042_pnp_init();
 580         if (retval)
 581                 return retval;
 582
 583 #if defined(__ia64__)
 584         i8042_reset = 1;
 585 #endif
 586
 587 #if defined(__i386__) || defined(__x86_64__)
 588         if (dmi_check_system(i8042_dmi_noloop_table))
 589                 i8042_noloop = 1;
 590
 591         if (dmi_check_system(i8042_dmi_nomux_table))
 592                 i8042_nomux = 1;
 593 #endif
 594
 595 #ifdef CONFIG_X86
 596         if (dmi_check_system(i8042_dmi_dritek_table))
 597                 i8042_dritek = 1;
 598 #endif /* CONFIG_X86 */
 599
 600         return retval;
 601 }
 602
 603 static inline void i8042_platform_exit(void)
 604 {
 605         i8042_pnp_exit();
 606 }
 607
 608 #endif /* _I8042_X86IA64IO_H */