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 = "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                 .ident = "Fujitsu-Siemens Amilo Pro 2030",
 197                 .matches = {
 198                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 199                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"),
 200                 },
 201         },
 202         {
 203                 /*
 204                  * No data is coming from the touchscreen unless KBC
 205                  * is in legacy mode.
 206                  */
 207                 .ident = "Panasonic CF-29",
 208                 .matches = {
 209                         DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
 210                         DMI_MATCH(DMI_PRODUCT_NAME, "CF-29"),
 211                 },
 212         },
 213         {
 214                 /*
 215                  * Errors on MUX ports are reported without raising AUXDATA
 216                  * causing "spurious NAK" messages.
 217                  */
 218                 .ident = "HP Pavilion DV4017EA",
 219                 .matches = {
 220                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 221                         DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EA032EA#ABF)"),
 222                 },
 223         },
 224         {
 225                 /*
 226                  * Like DV4017EA does not raise AUXERR for errors on MUX ports.
 227                  */
 228                 .ident = "HP Pavilion ZT1000",
 229                 .matches = {
 230                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 231                         DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion Notebook PC"),
 232                         DMI_MATCH(DMI_PRODUCT_VERSION, "HP Pavilion Notebook ZT1000"),
 233                 },
 234         },
 235         {
 236                 /*
 237                  * Like DV4017EA does not raise AUXERR for errors on MUX ports.
 238                  */
 239                 .ident = "HP Pavilion DV4270ca",
 240                 .matches = {
 241                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 242                         DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EH476UA#ABL)"),
 243                 },
 244         },
 245         {
 246                 .ident = "Toshiba P10",
 247                 .matches = {
 248                         DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 249                         DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P10"),
 250                 },
 251         },
 252         {
 253                 .ident = "Toshiba Equium A110",
 254                 .matches = {
 255                         DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 256                         DMI_MATCH(DMI_PRODUCT_NAME, "EQUIUM A110"),
 257                 },
 258         },
 259         {
 260                 .ident = "Alienware Sentia",
 261                 .matches = {
 262                         DMI_MATCH(DMI_SYS_VENDOR, "ALIENWARE"),
 263                         DMI_MATCH(DMI_PRODUCT_NAME, "Sentia"),
 264                 },
 265         },
 266         {
 267                 .ident = "Sharp Actius MM20",
 268                 .matches = {
 269                         DMI_MATCH(DMI_SYS_VENDOR, "SHARP"),
 270                         DMI_MATCH(DMI_PRODUCT_NAME, "PC-MM20 Series"),
 271                 },
 272         },
 273         {
 274                 .ident = "Sony Vaio FS-115b",
 275                 .matches = {
 276                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 277                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FS115B"),
 278                 },
 279         },
 280         {
 281                 .ident = "Amoi M636/A737",
 282                 .matches = {
 283                         DMI_MATCH(DMI_SYS_VENDOR, "Amoi Electronics CO.,LTD."),
 284                         DMI_MATCH(DMI_PRODUCT_NAME, "M636/A737 platform"),
 285                 },
 286         },
 287         {
 288                 .ident = "Lenovo 3000 n100",
 289                 .matches = {
 290                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 291                         DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
 292                 },
 293         },
 294         { }
 295 };
 296
 297 #ifdef CONFIG_PNP
 298 static struct dmi_system_id __initdata i8042_dmi_nopnp_table[] = {
 299         {
 300                 .ident = "Intel MBO Desktop D845PESV",
 301                 .matches = {
 302                         DMI_MATCH(DMI_BOARD_NAME, "D845PESV"),
 303                         DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
 304                 },
 305         },
 306         { }
 307 };
 308 #endif
 309
 310 /*
 311  * Some Wistron based laptops need us to explicitly enable the 'Dritek
 312  * keyboard extension' to make their extra keys start generating scancodes.
 313  * Originally, this was just confined to older laptops, but a few Acer laptops
 314  * have turned up in 2007 that also need this again.
 315  */
 316 static struct dmi_system_id __initdata i8042_dmi_dritek_table[] = {
 317         {
 318                 .ident = "Acer Aspire 5630",
 319                 .matches = {
 320                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 321                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
 322                 },
 323         },
 324         {
 325                 .ident = "Acer Aspire 5650",
 326                 .matches = {
 327                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 328                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
 329                 },
 330         },
 331         {
 332                 .ident = "Acer Aspire 5680",
 333                 .matches = {
 334                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 335                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
 336                 },
 337         },
 338         {
 339                 .ident = "Acer Aspire 9110",
 340                 .matches = {
 341                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 342                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
 343                 },
 344         },
 345         {
 346                 .ident = "Acer TravelMate 660",
 347                 .matches = {
 348                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 349                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 660"),
 350                 },
 351         },
 352         {
 353                 .ident = "Acer TravelMate 2490",
 354                 .matches = {
 355                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 356                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
 357                 },
 358         },
 359         { }
 360 };
 361
 362 #endif /* CONFIG_X86 */
 363
 364 #ifdef CONFIG_PNP
 365 #include <linux/pnp.h>
 366
 367 static int i8042_pnp_kbd_registered;
 368 static unsigned int i8042_pnp_kbd_devices;
 369 static int i8042_pnp_aux_registered;
 370 static unsigned int i8042_pnp_aux_devices;
 371
 372 static int i8042_pnp_command_reg;
 373 static int i8042_pnp_data_reg;
 374 static int i8042_pnp_kbd_irq;
 375 static int i8042_pnp_aux_irq;
 376
 377 static char i8042_pnp_kbd_name[32];
 378 static char i8042_pnp_aux_name[32];
 379
 380 static int i8042_pnp_kbd_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
 381 {
 382         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
 383                 i8042_pnp_data_reg = pnp_port_start(dev,0);
 384
 385         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
 386                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
 387
 388         if (pnp_irq_valid(dev,0))
 389                 i8042_pnp_kbd_irq = pnp_irq(dev, 0);
 390
 391         strlcpy(i8042_pnp_kbd_name, did->id, sizeof(i8042_pnp_kbd_name));
 392         if (strlen(pnp_dev_name(dev))) {
 393                 strlcat(i8042_pnp_kbd_name, ":", sizeof(i8042_pnp_kbd_name));
 394                 strlcat(i8042_pnp_kbd_name, pnp_dev_name(dev), sizeof(i8042_pnp_kbd_name));
 395         }
 396
 397         i8042_pnp_kbd_devices++;
 398         return 0;
 399 }
 400
 401 static int i8042_pnp_aux_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
 402 {
 403         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
 404                 i8042_pnp_data_reg = pnp_port_start(dev,0);
 405
 406         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
 407                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
 408
 409         if (pnp_irq_valid(dev, 0))
 410                 i8042_pnp_aux_irq = pnp_irq(dev, 0);
 411
 412         strlcpy(i8042_pnp_aux_name, did->id, sizeof(i8042_pnp_aux_name));
 413         if (strlen(pnp_dev_name(dev))) {
 414                 strlcat(i8042_pnp_aux_name, ":", sizeof(i8042_pnp_aux_name));
 415                 strlcat(i8042_pnp_aux_name, pnp_dev_name(dev), sizeof(i8042_pnp_aux_name));
 416         }
 417
 418         i8042_pnp_aux_devices++;
 419         return 0;
 420 }
 421
 422 static struct pnp_device_id pnp_kbd_devids[] = {
 423         { .id = "PNP0303", .driver_data = 0 },
 424         { .id = "PNP030b", .driver_data = 0 },
 425         { .id = "", },
 426 };
 427
 428 static struct pnp_driver i8042_pnp_kbd_driver = {
 429         .name           = "i8042 kbd",
 430         .id_table       = pnp_kbd_devids,
 431         .probe          = i8042_pnp_kbd_probe,
 432 };
 433
 434 static struct pnp_device_id pnp_aux_devids[] = {
 435         { .id = "FJC6000", .driver_data = 0 },
 436         { .id = "FJC6001", .driver_data = 0 },
 437         { .id = "PNP0f03", .driver_data = 0 },
 438         { .id = "PNP0f0b", .driver_data = 0 },
 439         { .id = "PNP0f0e", .driver_data = 0 },
 440         { .id = "PNP0f12", .driver_data = 0 },
 441         { .id = "PNP0f13", .driver_data = 0 },
 442         { .id = "PNP0f19", .driver_data = 0 },
 443         { .id = "PNP0f1c", .driver_data = 0 },
 444         { .id = "SYN0801", .driver_data = 0 },
 445         { .id = "", },
 446 };
 447
 448 static struct pnp_driver i8042_pnp_aux_driver = {
 449         .name           = "i8042 aux",
 450         .id_table       = pnp_aux_devids,
 451         .probe          = i8042_pnp_aux_probe,
 452 };
 453
 454 static void i8042_pnp_exit(void)
 455 {
 456         if (i8042_pnp_kbd_registered) {
 457                 i8042_pnp_kbd_registered = 0;
 458                 pnp_unregister_driver(&i8042_pnp_kbd_driver);
 459         }
 460
 461         if (i8042_pnp_aux_registered) {
 462                 i8042_pnp_aux_registered = 0;
 463                 pnp_unregister_driver(&i8042_pnp_aux_driver);
 464         }
 465 }
 466
 467 static int __init i8042_pnp_init(void)
 468 {
 469         char kbd_irq_str[4] = { 0 }, aux_irq_str[4] = { 0 };
 470         int pnp_data_busted = 0;
 471         int err;
 472
 473 #ifdef CONFIG_X86
 474         if (dmi_check_system(i8042_dmi_nopnp_table))
 475                 i8042_nopnp = 1;
 476 #endif
 477
 478         if (i8042_nopnp) {
 479                 printk(KERN_INFO "i8042: PNP detection disabled\n");
 480                 return 0;
 481         }
 482
 483         err = pnp_register_driver(&i8042_pnp_kbd_driver);
 484         if (!err)
 485                 i8042_pnp_kbd_registered = 1;
 486
 487         err = pnp_register_driver(&i8042_pnp_aux_driver);
 488         if (!err)
 489                 i8042_pnp_aux_registered = 1;
 490
 491         if (!i8042_pnp_kbd_devices && !i8042_pnp_aux_devices) {
 492                 i8042_pnp_exit();
 493 #if defined(__ia64__)
 494                 return -ENODEV;
 495 #else
 496                 printk(KERN_INFO "PNP: No PS/2 controller found. Probing ports directly.\n");
 497                 return 0;
 498 #endif
 499         }
 500
 501         if (i8042_pnp_kbd_devices)
 502                 snprintf(kbd_irq_str, sizeof(kbd_irq_str),
 503                         "%d", i8042_pnp_kbd_irq);
 504         if (i8042_pnp_aux_devices)
 505                 snprintf(aux_irq_str, sizeof(aux_irq_str),
 506                         "%d", i8042_pnp_aux_irq);
 507
 508         printk(KERN_INFO "PNP: PS/2 Controller [%s%s%s] at %#x,%#x irq %s%s%s\n",
 509                 i8042_pnp_kbd_name, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
 510                 i8042_pnp_aux_name,
 511                 i8042_pnp_data_reg, i8042_pnp_command_reg,
 512                 kbd_irq_str, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
 513                 aux_irq_str);
 514
 515 #if defined(__ia64__)
 516         if (!i8042_pnp_kbd_devices)
 517                 i8042_nokbd = 1;
 518         if (!i8042_pnp_aux_devices)
 519                 i8042_noaux = 1;
 520 #endif
 521
 522         if (((i8042_pnp_data_reg & ~0xf) == (i8042_data_reg & ~0xf) &&
 523               i8042_pnp_data_reg != i8042_data_reg) ||
 524             !i8042_pnp_data_reg) {
 525                 printk(KERN_WARNING
 526                         "PNP: PS/2 controller has invalid data port %#x; "
 527                         "using default %#x\n",
 528                         i8042_pnp_data_reg, i8042_data_reg);
 529                 i8042_pnp_data_reg = i8042_data_reg;
 530                 pnp_data_busted = 1;
 531         }
 532
 533         if (((i8042_pnp_command_reg & ~0xf) == (i8042_command_reg & ~0xf) &&
 534               i8042_pnp_command_reg != i8042_command_reg) ||
 535             !i8042_pnp_command_reg) {
 536                 printk(KERN_WARNING
 537                         "PNP: PS/2 controller has invalid command port %#x; "
 538                         "using default %#x\n",
 539                         i8042_pnp_command_reg, i8042_command_reg);
 540                 i8042_pnp_command_reg = i8042_command_reg;
 541                 pnp_data_busted = 1;
 542         }
 543
 544         if (!i8042_nokbd && !i8042_pnp_kbd_irq) {
 545                 printk(KERN_WARNING
 546                         "PNP: PS/2 controller doesn't have KBD irq; "
 547                         "using default %d\n", i8042_kbd_irq);
 548                 i8042_pnp_kbd_irq = i8042_kbd_irq;
 549                 pnp_data_busted = 1;
 550         }
 551
 552         if (!i8042_noaux && !i8042_pnp_aux_irq) {
 553                 if (!pnp_data_busted && i8042_pnp_kbd_irq) {
 554                         printk(KERN_WARNING
 555                                 "PNP: PS/2 appears to have AUX port disabled, "
 556                                 "if this is incorrect please boot with "
 557                                 "i8042.nopnp\n");
 558                         i8042_noaux = 1;
 559                 } else {
 560                         printk(KERN_WARNING
 561                                 "PNP: PS/2 controller doesn't have AUX irq; "
 562                                 "using default %d\n", i8042_aux_irq);
 563                         i8042_pnp_aux_irq = i8042_aux_irq;
 564                 }
 565         }
 566
 567         i8042_data_reg = i8042_pnp_data_reg;
 568         i8042_command_reg = i8042_pnp_command_reg;
 569         i8042_kbd_irq = i8042_pnp_kbd_irq;
 570         i8042_aux_irq = i8042_pnp_aux_irq;
 571
 572         return 0;
 573 }
 574
 575 #else
 576 static inline int i8042_pnp_init(void) { return 0; }
 577 static inline void i8042_pnp_exit(void) { }
 578 #endif
 579
 580 static int __init i8042_platform_init(void)
 581 {
 582         int retval;
 583
 584 /*
 585  * On ix86 platforms touching the i8042 data register region can do really
 586  * bad things. Because of this the region is always reserved on ix86 boxes.
 587  *
 588  *      if (!request_region(I8042_DATA_REG, 16, "i8042"))
 589  *              return -EBUSY;
 590  */
 591
 592         i8042_kbd_irq = I8042_MAP_IRQ(1);
 593         i8042_aux_irq = I8042_MAP_IRQ(12);
 594
 595         retval = i8042_pnp_init();
 596         if (retval)
 597                 return retval;
 598
 599 #if defined(__ia64__)
 600         i8042_reset = 1;
 601 #endif
 602
 603 #ifdef CONFIG_X86
 604         if (dmi_check_system(i8042_dmi_noloop_table))
 605                 i8042_noloop = 1;
 606
 607         if (dmi_check_system(i8042_dmi_nomux_table))
 608                 i8042_nomux = 1;
 609
 610         if (dmi_check_system(i8042_dmi_dritek_table))
 611                 i8042_dritek = 1;
 612 #endif /* CONFIG_X86 */
 613
 614         return retval;
 615 }
 616
 617 static inline void i8042_platform_exit(void)
 618 {
 619         i8042_pnp_exit();
 620 }
 621
 622 #endif /* _I8042_X86IA64IO_H */