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 #ifdef CONFIG_X86
  11 #include <asm/x86_init.h>
  12 #endif
  13
  14 /*
  15  * Names.
  16  */
  17
  18 #define I8042_KBD_PHYS_DESC "isa0060/serio0"
  19 #define I8042_AUX_PHYS_DESC "isa0060/serio1"
  20 #define I8042_MUX_PHYS_DESC "isa0060/serio%d"
  21
  22 /*
  23  * IRQs.
  24  */
  25
  26 #if defined(__ia64__)
  27 # define I8042_MAP_IRQ(x)       isa_irq_to_vector((x))
  28 #else
  29 # define I8042_MAP_IRQ(x)       (x)
  30 #endif
  31
  32 #define I8042_KBD_IRQ   i8042_kbd_irq
  33 #define I8042_AUX_IRQ   i8042_aux_irq
  34
  35 static int i8042_kbd_irq;
  36 static int i8042_aux_irq;
  37
  38 /*
  39  * Register numbers.
  40  */
  41
  42 #define I8042_COMMAND_REG       i8042_command_reg
  43 #define I8042_STATUS_REG        i8042_command_reg
  44 #define I8042_DATA_REG          i8042_data_reg
  45
  46 static int i8042_command_reg = 0x64;
  47 static int i8042_data_reg = 0x60;
  48
  49
  50 static inline int i8042_read_data(void)
  51 {
  52         return inb(I8042_DATA_REG);
  53 }
  54
  55 static inline int i8042_read_status(void)
  56 {
  57         return inb(I8042_STATUS_REG);
  58 }
  59
  60 static inline void i8042_write_data(int val)
  61 {
  62         outb(val, I8042_DATA_REG);
  63 }
  64
  65 static inline void i8042_write_command(int val)
  66 {
  67         outb(val, I8042_COMMAND_REG);
  68 }
  69
  70 #ifdef CONFIG_X86
  71
  72 #include <linux/dmi.h>
  73
  74 static const struct dmi_system_id __initconst i8042_dmi_noloop_table[] = {
  75         {
  76                 /*
  77                  * Arima-Rioworks HDAMB -
  78                  * AUX LOOP command does not raise AUX IRQ
  79                  */
  80                 .matches = {
  81                         DMI_MATCH(DMI_BOARD_VENDOR, "RIOWORKS"),
  82                         DMI_MATCH(DMI_BOARD_NAME, "HDAMB"),
  83                         DMI_MATCH(DMI_BOARD_VERSION, "Rev E"),
  84                 },
  85         },
  86         {
  87                 /* ASUS G1S */
  88                 .matches = {
  89                         DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer Inc."),
  90                         DMI_MATCH(DMI_BOARD_NAME, "G1S"),
  91                         DMI_MATCH(DMI_BOARD_VERSION, "1.0"),
  92                 },
  93         },
  94         {
  95                 /* ASUS P65UP5 - AUX LOOP command does not raise AUX IRQ */
  96                 .matches = {
  97                         DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
  98                         DMI_MATCH(DMI_BOARD_NAME, "P/I-P65UP5"),
  99                         DMI_MATCH(DMI_BOARD_VERSION, "REV 2.X"),
 100                 },
 101         },
 102         {
 103                 .matches = {
 104                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 105                         DMI_MATCH(DMI_PRODUCT_NAME, "X750LN"),
 106                 },
 107         },
 108         {
 109                 .matches = {
 110                         DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
 111                         DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
 112                         DMI_MATCH(DMI_PRODUCT_VERSION, "8500"),
 113                 },
 114         },
 115         {
 116                 .matches = {
 117                         DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
 118                         DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
 119                         DMI_MATCH(DMI_PRODUCT_VERSION, "DL760"),
 120                 },
 121         },
 122         {
 123                 /* OQO Model 01 */
 124                 .matches = {
 125                         DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
 126                         DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
 127                         DMI_MATCH(DMI_PRODUCT_VERSION, "00"),
 128                 },
 129         },
 130         {
 131                 /* ULI EV4873 - AUX LOOP does not work properly */
 132                 .matches = {
 133                         DMI_MATCH(DMI_SYS_VENDOR, "ULI"),
 134                         DMI_MATCH(DMI_PRODUCT_NAME, "EV4873"),
 135                         DMI_MATCH(DMI_PRODUCT_VERSION, "5a"),
 136                 },
 137         },
 138         {
 139                 /* Microsoft Virtual Machine */
 140                 .matches = {
 141                         DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
 142                         DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"),
 143                         DMI_MATCH(DMI_PRODUCT_VERSION, "VS2005R2"),
 144                 },
 145         },
 146         {
 147                 /* Medion MAM 2070 */
 148                 .matches = {
 149                         DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
 150                         DMI_MATCH(DMI_PRODUCT_NAME, "MAM 2070"),
 151                         DMI_MATCH(DMI_PRODUCT_VERSION, "5a"),
 152                 },
 153         },
 154         {
 155                 /* Blue FB5601 */
 156                 .matches = {
 157                         DMI_MATCH(DMI_SYS_VENDOR, "blue"),
 158                         DMI_MATCH(DMI_PRODUCT_NAME, "FB5601"),
 159                         DMI_MATCH(DMI_PRODUCT_VERSION, "M606"),
 160                 },
 161         },
 162         {
 163                 /* Gigabyte M912 */
 164                 .matches = {
 165                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 166                         DMI_MATCH(DMI_PRODUCT_NAME, "M912"),
 167                         DMI_MATCH(DMI_PRODUCT_VERSION, "01"),
 168                 },
 169         },
 170         {
 171                 /* Gigabyte M1022M netbook */
 172                 .matches = {
 173                         DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co.,Ltd."),
 174                         DMI_MATCH(DMI_BOARD_NAME, "M1022E"),
 175                         DMI_MATCH(DMI_BOARD_VERSION, "1.02"),
 176                 },
 177         },
 178         {
 179                 /* Gigabyte Spring Peak - defines wrong chassis type */
 180                 .matches = {
 181                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 182                         DMI_MATCH(DMI_PRODUCT_NAME, "Spring Peak"),
 183                 },
 184         },
 185         {
 186                 /* Gigabyte T1005 - defines wrong chassis type ("Other") */
 187                 .matches = {
 188                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 189                         DMI_MATCH(DMI_PRODUCT_NAME, "T1005"),
 190                 },
 191         },
 192         {
 193                 /* Gigabyte T1005M/P - defines wrong chassis type ("Other") */
 194                 .matches = {
 195                         DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
 196                         DMI_MATCH(DMI_PRODUCT_NAME, "T1005M/P"),
 197                 },
 198         },
 199         {
 200                 .matches = {
 201                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 202                         DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv9700"),
 203                         DMI_MATCH(DMI_PRODUCT_VERSION, "Rev 1"),
 204                 },
 205         },
 206         { }
 207 };
 208
 209 /*
 210  * Some laptops do implement active multiplexing mode correctly;
 211  * unfortunately they are in minority.
 212  */
 213 static const struct dmi_system_id __initconst i8042_dmi_mux_table[] = {
 214         {
 215                 /*
 216                  * Panasonic CF-18 needs to be in MUX mode since the
 217                  * touchscreen is on serio3 and it also has touchpad.
 218                  */
 219                 .matches = {
 220                         DMI_MATCH(DMI_PRODUCT_NAME, "CF-18"),
 221                 },
 222         },
 223         { }
 224 };
 225
 226 static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = {
 227         {
 228                 /* MSI Wind U-100 */
 229                 .matches = {
 230                         DMI_MATCH(DMI_BOARD_NAME, "U-100"),
 231                         DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
 232                 },
 233         },
 234         {
 235                 /* LG Electronics X110 */
 236                 .matches = {
 237                         DMI_MATCH(DMI_BOARD_NAME, "X110"),
 238                         DMI_MATCH(DMI_BOARD_VENDOR, "LG Electronics Inc."),
 239                 },
 240         },
 241         {
 242                 /* Acer Aspire One 150 */
 243                 .matches = {
 244                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 245                         DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
 246                 },
 247         },
 248         {
 249                 /* Advent 4211 */
 250                 .matches = {
 251                         DMI_MATCH(DMI_SYS_VENDOR, "DIXONSXP"),
 252                         DMI_MATCH(DMI_PRODUCT_NAME, "Advent 4211"),
 253                 },
 254         },
 255         {
 256                 /* Medion Akoya Mini E1210 */
 257                 .matches = {
 258                         DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
 259                         DMI_MATCH(DMI_PRODUCT_NAME, "E1210"),
 260                 },
 261         },
 262         {
 263                 /* Medion Akoya E1222 */
 264                 .matches = {
 265                         DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
 266                         DMI_MATCH(DMI_PRODUCT_NAME, "E122X"),
 267                 },
 268         },
 269         {
 270                 /* Mivvy M310 */
 271                 .matches = {
 272                         DMI_MATCH(DMI_SYS_VENDOR, "VIOOO"),
 273                         DMI_MATCH(DMI_PRODUCT_NAME, "N10"),
 274                 },
 275         },
 276         {
 277                 /* Dell Vostro 1320 */
 278                 .matches = {
 279                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 280                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1320"),
 281                 },
 282         },
 283         {
 284                 /* Dell Vostro 1520 */
 285                 .matches = {
 286                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 287                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1520"),
 288                 },
 289         },
 290         {
 291                 /* Dell Vostro 1720 */
 292                 .matches = {
 293                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 294                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1720"),
 295                 },
 296         },
 297         {
 298                 /* Lenovo Ideapad U455 */
 299                 .matches = {
 300                         DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 301                         DMI_MATCH(DMI_PRODUCT_NAME, "20046"),
 302                 },
 303         },
 304         { }
 305 };
 306
 307 #ifdef CONFIG_PNP
 308 static const struct dmi_system_id __initconst i8042_dmi_nopnp_table[] = {
 309         {
 310                 /* Intel MBO Desktop D845PESV */
 311                 .matches = {
 312                         DMI_MATCH(DMI_BOARD_NAME, "D845PESV"),
 313                         DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
 314                 },
 315         },
 316         {
 317                 /* MSI Wind U-100 */
 318                 .matches = {
 319                         DMI_MATCH(DMI_BOARD_NAME, "U-100"),
 320                         DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
 321                 },
 322         },
 323         { }
 324 };
 325
 326 static const struct dmi_system_id __initconst i8042_dmi_laptop_table[] = {
 327         {
 328                 .matches = {
 329                         DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
 330                 },
 331         },
 332         {
 333                 .matches = {
 334                         DMI_MATCH(DMI_CHASSIS_TYPE, "9"), /* Laptop */
 335                 },
 336         },
 337         {
 338                 .matches = {
 339                         DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
 340                 },
 341         },
 342         {
 343                 .matches = {
 344                         DMI_MATCH(DMI_CHASSIS_TYPE, "14"), /* Sub-Notebook */
 345                 },
 346         },
 347         { }
 348 };
 349 #endif
 350
 351 static const struct dmi_system_id __initconst i8042_dmi_notimeout_table[] = {
 352         {
 353                 /* Dell Vostro V13 */
 354                 .matches = {
 355                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 356                         DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
 357                 },
 358         },
 359         {
 360                 /* Newer HP Pavilion dv4 models */
 361                 .matches = {
 362                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 363                         DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
 364                 },
 365         },
 366         {
 367                 /* Fujitsu A544 laptop */
 368                 /* https://bugzilla.redhat.com/show_bug.cgi?id=1111138 */
 369                 .matches = {
 370                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 371                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK A544"),
 372                 },
 373         },
 374         {
 375                 /* Fujitsu AH544 laptop */
 376                 /* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
 377                 .matches = {
 378                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 379                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK AH544"),
 380                 },
 381         },
 382         {
 383                 /* Fujitsu U574 laptop */
 384                 /* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
 385                 .matches = {
 386                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 387                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U574"),
 388                 },
 389         },
 390         { }
 391 };
 392
 393 /*
 394  * Some Wistron based laptops need us to explicitly enable the 'Dritek
 395  * keyboard extension' to make their extra keys start generating scancodes.
 396  * Originally, this was just confined to older laptops, but a few Acer laptops
 397  * have turned up in 2007 that also need this again.
 398  */
 399 static const struct dmi_system_id __initconst i8042_dmi_dritek_table[] = {
 400         {
 401                 /* Acer Aspire 5100 */
 402                 .matches = {
 403                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 404                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
 405                 },
 406         },
 407         {
 408                 /* Acer Aspire 5610 */
 409                 .matches = {
 410                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 411                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
 412                 },
 413         },
 414         {
 415                 /* Acer Aspire 5630 */
 416                 .matches = {
 417                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 418                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
 419                 },
 420         },
 421         {
 422                 /* Acer Aspire 5650 */
 423                 .matches = {
 424                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 425                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
 426                 },
 427         },
 428         {
 429                 /* Acer Aspire 5680 */
 430                 .matches = {
 431                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 432                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
 433                 },
 434         },
 435         {
 436                 /* Acer Aspire 5720 */
 437                 .matches = {
 438                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 439                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5720"),
 440                 },
 441         },
 442         {
 443                 /* Acer Aspire 9110 */
 444                 .matches = {
 445                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 446                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
 447                 },
 448         },
 449         {
 450                 /* Acer TravelMate 660 */
 451                 .matches = {
 452                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 453                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 660"),
 454                 },
 455         },
 456         {
 457                 /* Acer TravelMate 2490 */
 458                 .matches = {
 459                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 460                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
 461                 },
 462         },
 463         {
 464                 /* Acer TravelMate 4280 */
 465                 .matches = {
 466                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 467                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4280"),
 468                 },
 469         },
 470         { }
 471 };
 472
 473 #endif /* CONFIG_X86 */
 474
 475 #ifdef CONFIG_PNP
 476 #include <linux/pnp.h>
 477
 478 static bool i8042_pnp_kbd_registered;
 479 static unsigned int i8042_pnp_kbd_devices;
 480 static bool i8042_pnp_aux_registered;
 481 static unsigned int i8042_pnp_aux_devices;
 482
 483 static int i8042_pnp_command_reg;
 484 static int i8042_pnp_data_reg;
 485 static int i8042_pnp_kbd_irq;
 486 static int i8042_pnp_aux_irq;
 487
 488 static char i8042_pnp_kbd_name[32];
 489 static char i8042_pnp_aux_name[32];
 490
 491 static void i8042_pnp_id_to_string(struct pnp_id *id, char *dst, int dst_size)
 492 {
 493         strlcpy(dst, "PNP:", dst_size);
 494
 495         while (id) {
 496                 strlcat(dst, " ", dst_size);
 497                 strlcat(dst, id->id, dst_size);
 498                 id = id->next;
 499         }
 500 }
 501
 502 static int i8042_pnp_kbd_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
 503 {
 504         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
 505                 i8042_pnp_data_reg = pnp_port_start(dev,0);
 506
 507         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
 508                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
 509
 510         if (pnp_irq_valid(dev,0))
 511                 i8042_pnp_kbd_irq = pnp_irq(dev, 0);
 512
 513         strlcpy(i8042_pnp_kbd_name, did->id, sizeof(i8042_pnp_kbd_name));
 514         if (strlen(pnp_dev_name(dev))) {
 515                 strlcat(i8042_pnp_kbd_name, ":", sizeof(i8042_pnp_kbd_name));
 516                 strlcat(i8042_pnp_kbd_name, pnp_dev_name(dev), sizeof(i8042_pnp_kbd_name));
 517         }
 518         i8042_pnp_id_to_string(dev->id, i8042_kbd_firmware_id,
 519                                sizeof(i8042_kbd_firmware_id));
 520
 521         /* Keyboard ports are always supposed to be wakeup-enabled */
 522         device_set_wakeup_enable(&dev->dev, true);
 523
 524         i8042_pnp_kbd_devices++;
 525         return 0;
 526 }
 527
 528 static int i8042_pnp_aux_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
 529 {
 530         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
 531                 i8042_pnp_data_reg = pnp_port_start(dev,0);
 532
 533         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
 534                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
 535
 536         if (pnp_irq_valid(dev, 0))
 537                 i8042_pnp_aux_irq = pnp_irq(dev, 0);
 538
 539         strlcpy(i8042_pnp_aux_name, did->id, sizeof(i8042_pnp_aux_name));
 540         if (strlen(pnp_dev_name(dev))) {
 541                 strlcat(i8042_pnp_aux_name, ":", sizeof(i8042_pnp_aux_name));
 542                 strlcat(i8042_pnp_aux_name, pnp_dev_name(dev), sizeof(i8042_pnp_aux_name));
 543         }
 544         i8042_pnp_id_to_string(dev->id, i8042_aux_firmware_id,
 545                                sizeof(i8042_aux_firmware_id));
 546
 547         i8042_pnp_aux_devices++;
 548         return 0;
 549 }
 550
 551 static struct pnp_device_id pnp_kbd_devids[] = {
 552         { .id = "PNP0300", .driver_data = 0 },
 553         { .id = "PNP0301", .driver_data = 0 },
 554         { .id = "PNP0302", .driver_data = 0 },
 555         { .id = "PNP0303", .driver_data = 0 },
 556         { .id = "PNP0304", .driver_data = 0 },
 557         { .id = "PNP0305", .driver_data = 0 },
 558         { .id = "PNP0306", .driver_data = 0 },
 559         { .id = "PNP0309", .driver_data = 0 },
 560         { .id = "PNP030a", .driver_data = 0 },
 561         { .id = "PNP030b", .driver_data = 0 },
 562         { .id = "PNP0320", .driver_data = 0 },
 563         { .id = "PNP0343", .driver_data = 0 },
 564         { .id = "PNP0344", .driver_data = 0 },
 565         { .id = "PNP0345", .driver_data = 0 },
 566         { .id = "CPQA0D7", .driver_data = 0 },
 567         { .id = "", },
 568 };
 569 MODULE_DEVICE_TABLE(pnp, pnp_kbd_devids);
 570
 571 static struct pnp_driver i8042_pnp_kbd_driver = {
 572         .name           = "i8042 kbd",
 573         .id_table       = pnp_kbd_devids,
 574         .probe          = i8042_pnp_kbd_probe,
 575 };
 576
 577 static struct pnp_device_id pnp_aux_devids[] = {
 578         { .id = "AUI0200", .driver_data = 0 },
 579         { .id = "FJC6000", .driver_data = 0 },
 580         { .id = "FJC6001", .driver_data = 0 },
 581         { .id = "PNP0f03", .driver_data = 0 },
 582         { .id = "PNP0f0b", .driver_data = 0 },
 583         { .id = "PNP0f0e", .driver_data = 0 },
 584         { .id = "PNP0f12", .driver_data = 0 },
 585         { .id = "PNP0f13", .driver_data = 0 },
 586         { .id = "PNP0f19", .driver_data = 0 },
 587         { .id = "PNP0f1c", .driver_data = 0 },
 588         { .id = "SYN0801", .driver_data = 0 },
 589         { .id = "", },
 590 };
 591 MODULE_DEVICE_TABLE(pnp, pnp_aux_devids);
 592
 593 static struct pnp_driver i8042_pnp_aux_driver = {
 594         .name           = "i8042 aux",
 595         .id_table       = pnp_aux_devids,
 596         .probe          = i8042_pnp_aux_probe,
 597 };
 598
 599 static void i8042_pnp_exit(void)
 600 {
 601         if (i8042_pnp_kbd_registered) {
 602                 i8042_pnp_kbd_registered = false;
 603                 pnp_unregister_driver(&i8042_pnp_kbd_driver);
 604         }
 605
 606         if (i8042_pnp_aux_registered) {
 607                 i8042_pnp_aux_registered = false;
 608                 pnp_unregister_driver(&i8042_pnp_aux_driver);
 609         }
 610 }
 611
 612 static int __init i8042_pnp_init(void)
 613 {
 614         char kbd_irq_str[4] = { 0 }, aux_irq_str[4] = { 0 };
 615         bool pnp_data_busted = false;
 616         int err;
 617
 618 #ifdef CONFIG_X86
 619         if (dmi_check_system(i8042_dmi_nopnp_table))
 620                 i8042_nopnp = true;
 621 #endif
 622
 623         if (i8042_nopnp) {
 624                 pr_info("PNP detection disabled\n");
 625                 return 0;
 626         }
 627
 628         err = pnp_register_driver(&i8042_pnp_kbd_driver);
 629         if (!err)
 630                 i8042_pnp_kbd_registered = true;
 631
 632         err = pnp_register_driver(&i8042_pnp_aux_driver);
 633         if (!err)
 634                 i8042_pnp_aux_registered = true;
 635
 636         if (!i8042_pnp_kbd_devices && !i8042_pnp_aux_devices) {
 637                 i8042_pnp_exit();
 638 #if defined(__ia64__)
 639                 return -ENODEV;
 640 #else
 641                 pr_info("PNP: No PS/2 controller found. Probing ports directly.\n");
 642                 return 0;
 643 #endif
 644         }
 645
 646         if (i8042_pnp_kbd_devices)
 647                 snprintf(kbd_irq_str, sizeof(kbd_irq_str),
 648                         "%d", i8042_pnp_kbd_irq);
 649         if (i8042_pnp_aux_devices)
 650                 snprintf(aux_irq_str, sizeof(aux_irq_str),
 651                         "%d", i8042_pnp_aux_irq);
 652
 653         pr_info("PNP: PS/2 Controller [%s%s%s] at %#x,%#x irq %s%s%s\n",
 654                 i8042_pnp_kbd_name, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
 655                 i8042_pnp_aux_name,
 656                 i8042_pnp_data_reg, i8042_pnp_command_reg,
 657                 kbd_irq_str, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
 658                 aux_irq_str);
 659
 660 #if defined(__ia64__)
 661         if (!i8042_pnp_kbd_devices)
 662                 i8042_nokbd = true;
 663         if (!i8042_pnp_aux_devices)
 664                 i8042_noaux = true;
 665 #endif
 666
 667         if (((i8042_pnp_data_reg & ~0xf) == (i8042_data_reg & ~0xf) &&
 668               i8042_pnp_data_reg != i8042_data_reg) ||
 669             !i8042_pnp_data_reg) {
 670                 pr_warn("PNP: PS/2 controller has invalid data port %#x; using default %#x\n",
 671                         i8042_pnp_data_reg, i8042_data_reg);
 672                 i8042_pnp_data_reg = i8042_data_reg;
 673                 pnp_data_busted = true;
 674         }
 675
 676         if (((i8042_pnp_command_reg & ~0xf) == (i8042_command_reg & ~0xf) &&
 677               i8042_pnp_command_reg != i8042_command_reg) ||
 678             !i8042_pnp_command_reg) {
 679                 pr_warn("PNP: PS/2 controller has invalid command port %#x; using default %#x\n",
 680                         i8042_pnp_command_reg, i8042_command_reg);
 681                 i8042_pnp_command_reg = i8042_command_reg;
 682                 pnp_data_busted = true;
 683         }
 684
 685         if (!i8042_nokbd && !i8042_pnp_kbd_irq) {
 686                 pr_warn("PNP: PS/2 controller doesn't have KBD irq; using default %d\n",
 687                         i8042_kbd_irq);
 688                 i8042_pnp_kbd_irq = i8042_kbd_irq;
 689                 pnp_data_busted = true;
 690         }
 691
 692         if (!i8042_noaux && !i8042_pnp_aux_irq) {
 693                 if (!pnp_data_busted && i8042_pnp_kbd_irq) {
 694                         pr_warn("PNP: PS/2 appears to have AUX port disabled, "
 695                                 "if this is incorrect please boot with i8042.nopnp\n");
 696                         i8042_noaux = true;
 697                 } else {
 698                         pr_warn("PNP: PS/2 controller doesn't have AUX irq; using default %d\n",
 699                                 i8042_aux_irq);
 700                         i8042_pnp_aux_irq = i8042_aux_irq;
 701                 }
 702         }
 703
 704         i8042_data_reg = i8042_pnp_data_reg;
 705         i8042_command_reg = i8042_pnp_command_reg;
 706         i8042_kbd_irq = i8042_pnp_kbd_irq;
 707         i8042_aux_irq = i8042_pnp_aux_irq;
 708
 709 #ifdef CONFIG_X86
 710         i8042_bypass_aux_irq_test = !pnp_data_busted &&
 711                                     dmi_check_system(i8042_dmi_laptop_table);
 712 #endif
 713
 714         return 0;
 715 }
 716
 717 #else
 718 static inline int i8042_pnp_init(void) { return 0; }
 719 static inline void i8042_pnp_exit(void) { }
 720 #endif
 721
 722 static int __init i8042_platform_init(void)
 723 {
 724         int retval;
 725
 726 #ifdef CONFIG_X86
 727         u8 a20_on = 0xdf;
 728         /* Just return if pre-detection shows no i8042 controller exist */
 729         if (!x86_platform.i8042_detect())
 730                 return -ENODEV;
 731 #endif
 732
 733 /*
 734  * On ix86 platforms touching the i8042 data register region can do really
 735  * bad things. Because of this the region is always reserved on ix86 boxes.
 736  *
 737  *      if (!request_region(I8042_DATA_REG, 16, "i8042"))
 738  *              return -EBUSY;
 739  */
 740
 741         i8042_kbd_irq = I8042_MAP_IRQ(1);
 742         i8042_aux_irq = I8042_MAP_IRQ(12);
 743
 744         retval = i8042_pnp_init();
 745         if (retval)
 746                 return retval;
 747
 748 #if defined(__ia64__)
 749         i8042_reset = true;
 750 #endif
 751
 752 #ifdef CONFIG_X86
 753         if (dmi_check_system(i8042_dmi_reset_table))
 754                 i8042_reset = true;
 755
 756         if (dmi_check_system(i8042_dmi_noloop_table))
 757                 i8042_noloop = true;
 758
 759         if (dmi_check_system(i8042_dmi_mux_table))
 760                 i8042_nomux = false;
 761
 762         if (dmi_check_system(i8042_dmi_notimeout_table))
 763                 i8042_notimeout = true;
 764
 765         if (dmi_check_system(i8042_dmi_dritek_table))
 766                 i8042_dritek = true;
 767
 768         /*
 769          * A20 was already enabled during early kernel init. But some buggy
 770          * BIOSes (in MSI Laptops) require A20 to be enabled using 8042 to
 771          * resume from S3. So we do it here and hope that nothing breaks.
 772          */
 773         i8042_command(&a20_on, 0x10d1);
 774         i8042_command(NULL, 0x00ff);    /* Null command for SMM firmware */
 775 #endif /* CONFIG_X86 */
 776
 777         return retval;
 778 }
 779
 780 static inline void i8042_platform_exit(void)
 781 {
 782         i8042_pnp_exit();
 783 }
 784
 785 #endif /* _I8042_X86IA64IO_H */