1 /* SPDX-License-Identifier: GPL-2.0-only */
2 #ifndef _I8042_X86IA64IO_H
3 #define _I8042_X86IA64IO_H
4
5
6 #ifdef CONFIG_X86
7 #include <asm/x86_init.h>
8 #endif
9
10 /*
11 * Names.
12 */
13
14 #define I8042_KBD_PHYS_DESC "isa0060/serio0"
15 #define I8042_AUX_PHYS_DESC "isa0060/serio1"
16 #define I8042_MUX_PHYS_DESC "isa0060/serio%d"
17
18 /*
19 * IRQs.
20 */
21
22 #if defined(__ia64__)
23 # define I8042_MAP_IRQ(x) isa_irq_to_vector((x))
24 #else
25 # define I8042_MAP_IRQ(x) (x)
26 #endif
27
28 #define I8042_KBD_IRQ i8042_kbd_irq
29 #define I8042_AUX_IRQ i8042_aux_irq
30
31 static int i8042_kbd_irq;
32 static int i8042_aux_irq;
33
34 /*
35 * Register numbers.
36 */
37
38 #define I8042_COMMAND_REG i8042_command_reg
39 #define I8042_STATUS_REG i8042_command_reg
40 #define I8042_DATA_REG i8042_data_reg
41
42 static int i8042_command_reg = 0x64;
43 static int i8042_data_reg = 0x60;
44
45
i8042_read_data(void)46 static inline int i8042_read_data(void)
47 {
48 return inb(I8042_DATA_REG);
49 }
50
i8042_read_status(void)51 static inline int i8042_read_status(void)
52 {
53 return inb(I8042_STATUS_REG);
54 }
55
i8042_write_data(int val)56 static inline void i8042_write_data(int val)
57 {
58 outb(val, I8042_DATA_REG);
59 }
60
i8042_write_command(int val)61 static inline void i8042_write_command(int val)
62 {
63 outb(val, I8042_COMMAND_REG);
64 }
65
66 #ifdef CONFIG_X86
67
68 #include <linux/dmi.h>
69
70 static const struct dmi_system_id __initconst i8042_dmi_noloop_table[] = {
71 {
72 /*
73 * Arima-Rioworks HDAMB -
74 * AUX LOOP command does not raise AUX IRQ
75 */
76 .matches = {
77 DMI_MATCH(DMI_BOARD_VENDOR, "RIOWORKS"),
78 DMI_MATCH(DMI_BOARD_NAME, "HDAMB"),
79 DMI_MATCH(DMI_BOARD_VERSION, "Rev E"),
80 },
81 },
82 {
83 /* ASUS G1S */
84 .matches = {
85 DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer Inc."),
86 DMI_MATCH(DMI_BOARD_NAME, "G1S"),
87 DMI_MATCH(DMI_BOARD_VERSION, "1.0"),
88 },
89 },
90 {
91 /* ASUS P65UP5 - AUX LOOP command does not raise AUX IRQ */
92 .matches = {
93 DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
94 DMI_MATCH(DMI_BOARD_NAME, "P/I-P65UP5"),
95 DMI_MATCH(DMI_BOARD_VERSION, "REV 2.X"),
96 },
97 },
98 {
99 .matches = {
100 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
101 DMI_MATCH(DMI_PRODUCT_NAME, "X750LN"),
102 },
103 },
104 {
105 .matches = {
106 DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
107 DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
108 DMI_MATCH(DMI_PRODUCT_VERSION, "8500"),
109 },
110 },
111 {
112 .matches = {
113 DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
114 DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
115 DMI_MATCH(DMI_PRODUCT_VERSION, "DL760"),
116 },
117 },
118 {
119 /* Dell Embedded Box PC 3000 */
120 .matches = {
121 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
122 DMI_MATCH(DMI_PRODUCT_NAME, "Embedded Box PC 3000"),
123 },
124 },
125 {
126 /* OQO Model 01 */
127 .matches = {
128 DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
129 DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
130 DMI_MATCH(DMI_PRODUCT_VERSION, "00"),
131 },
132 },
133 {
134 /* ULI EV4873 - AUX LOOP does not work properly */
135 .matches = {
136 DMI_MATCH(DMI_SYS_VENDOR, "ULI"),
137 DMI_MATCH(DMI_PRODUCT_NAME, "EV4873"),
138 DMI_MATCH(DMI_PRODUCT_VERSION, "5a"),
139 },
140 },
141 {
142 /* Microsoft Virtual Machine */
143 .matches = {
144 DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
145 DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"),
146 DMI_MATCH(DMI_PRODUCT_VERSION, "VS2005R2"),
147 },
148 },
149 {
150 /* Medion MAM 2070 */
151 .matches = {
152 DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
153 DMI_MATCH(DMI_PRODUCT_NAME, "MAM 2070"),
154 DMI_MATCH(DMI_PRODUCT_VERSION, "5a"),
155 },
156 },
157 {
158 /* Medion Akoya E7225 */
159 .matches = {
160 DMI_MATCH(DMI_SYS_VENDOR, "Medion"),
161 DMI_MATCH(DMI_PRODUCT_NAME, "Akoya E7225"),
162 DMI_MATCH(DMI_PRODUCT_VERSION, "1.0"),
163 },
164 },
165 {
166 /* Blue FB5601 */
167 .matches = {
168 DMI_MATCH(DMI_SYS_VENDOR, "blue"),
169 DMI_MATCH(DMI_PRODUCT_NAME, "FB5601"),
170 DMI_MATCH(DMI_PRODUCT_VERSION, "M606"),
171 },
172 },
173 {
174 /* Gigabyte M912 */
175 .matches = {
176 DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
177 DMI_MATCH(DMI_PRODUCT_NAME, "M912"),
178 DMI_MATCH(DMI_PRODUCT_VERSION, "01"),
179 },
180 },
181 {
182 /* Gigabyte M1022M netbook */
183 .matches = {
184 DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co.,Ltd."),
185 DMI_MATCH(DMI_BOARD_NAME, "M1022E"),
186 DMI_MATCH(DMI_BOARD_VERSION, "1.02"),
187 },
188 },
189 {
190 /* Gigabyte Spring Peak - defines wrong chassis type */
191 .matches = {
192 DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
193 DMI_MATCH(DMI_PRODUCT_NAME, "Spring Peak"),
194 },
195 },
196 {
197 /* Gigabyte T1005 - defines wrong chassis type ("Other") */
198 .matches = {
199 DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
200 DMI_MATCH(DMI_PRODUCT_NAME, "T1005"),
201 },
202 },
203 {
204 /* Gigabyte T1005M/P - defines wrong chassis type ("Other") */
205 .matches = {
206 DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
207 DMI_MATCH(DMI_PRODUCT_NAME, "T1005M/P"),
208 },
209 },
210 {
211 .matches = {
212 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
213 DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv9700"),
214 DMI_MATCH(DMI_PRODUCT_VERSION, "Rev 1"),
215 },
216 },
217 {
218 .matches = {
219 DMI_MATCH(DMI_SYS_VENDOR, "PEGATRON CORPORATION"),
220 DMI_MATCH(DMI_PRODUCT_NAME, "C15B"),
221 },
222 .matches = {
223 DMI_MATCH(DMI_SYS_VENDOR, "ByteSpeed LLC"),
224 DMI_MATCH(DMI_PRODUCT_NAME, "ByteSpeed Laptop C15B"),
225 },
226 },
227 { }
228 };
229
230 /*
231 * Some Fujitsu notebooks are having trouble with touchpads if
232 * active multiplexing mode is activated. Luckily they don't have
233 * external PS/2 ports so we can safely disable it.
234 * ... apparently some Toshibas don't like MUX mode either and
235 * die horrible death on reboot.
236 */
237 static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
238 {
239 /* Fujitsu Lifebook P7010/P7010D */
240 .matches = {
241 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
242 DMI_MATCH(DMI_PRODUCT_NAME, "P7010"),
243 },
244 },
245 {
246 /* Fujitsu Lifebook P7010 */
247 .matches = {
248 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
249 DMI_MATCH(DMI_PRODUCT_NAME, "0000000000"),
250 },
251 },
252 {
253 /* Fujitsu Lifebook P5020D */
254 .matches = {
255 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
256 DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P Series"),
257 },
258 },
259 {
260 /* Fujitsu Lifebook S2000 */
261 .matches = {
262 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
263 DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S Series"),
264 },
265 },
266 {
267 /* Fujitsu Lifebook S6230 */
268 .matches = {
269 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
270 DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S6230"),
271 },
272 },
273 {
274 /* Fujitsu Lifebook U745 */
275 .matches = {
276 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
277 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U745"),
278 },
279 },
280 {
281 /* Fujitsu T70H */
282 .matches = {
283 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
284 DMI_MATCH(DMI_PRODUCT_NAME, "FMVLT70H"),
285 },
286 },
287 {
288 /* Fujitsu-Siemens Lifebook T3010 */
289 .matches = {
290 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
291 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK T3010"),
292 },
293 },
294 {
295 /* Fujitsu-Siemens Lifebook E4010 */
296 .matches = {
297 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
298 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E4010"),
299 },
300 },
301 {
302 /* Fujitsu-Siemens Amilo Pro 2010 */
303 .matches = {
304 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
305 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro V2010"),
306 },
307 },
308 {
309 /* Fujitsu-Siemens Amilo Pro 2030 */
310 .matches = {
311 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
312 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"),
313 },
314 },
315 {
316 /*
317 * No data is coming from the touchscreen unless KBC
318 * is in legacy mode.
319 */
320 /* Panasonic CF-29 */
321 .matches = {
322 DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
323 DMI_MATCH(DMI_PRODUCT_NAME, "CF-29"),
324 },
325 },
326 {
327 /*
328 * HP Pavilion DV4017EA -
329 * errors on MUX ports are reported without raising AUXDATA
330 * causing "spurious NAK" messages.
331 */
332 .matches = {
333 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
334 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EA032EA#ABF)"),
335 },
336 },
337 {
338 /*
339 * HP Pavilion ZT1000 -
340 * like DV4017EA does not raise AUXERR for errors on MUX ports.
341 */
342 .matches = {
343 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
344 DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion Notebook PC"),
345 DMI_MATCH(DMI_PRODUCT_VERSION, "HP Pavilion Notebook ZT1000"),
346 },
347 },
348 {
349 /*
350 * HP Pavilion DV4270ca -
351 * like DV4017EA does not raise AUXERR for errors on MUX ports.
352 */
353 .matches = {
354 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
355 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EH476UA#ABL)"),
356 },
357 },
358 {
359 .matches = {
360 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
361 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P10"),
362 },
363 },
364 {
365 .matches = {
366 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
367 DMI_MATCH(DMI_PRODUCT_NAME, "EQUIUM A110"),
368 },
369 },
370 {
371 .matches = {
372 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
373 DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE C850D"),
374 },
375 },
376 {
377 .matches = {
378 DMI_MATCH(DMI_SYS_VENDOR, "ALIENWARE"),
379 DMI_MATCH(DMI_PRODUCT_NAME, "Sentia"),
380 },
381 },
382 {
383 /* Sharp Actius MM20 */
384 .matches = {
385 DMI_MATCH(DMI_SYS_VENDOR, "SHARP"),
386 DMI_MATCH(DMI_PRODUCT_NAME, "PC-MM20 Series"),
387 },
388 },
389 {
390 /* Sony Vaio FS-115b */
391 .matches = {
392 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
393 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FS115B"),
394 },
395 },
396 {
397 /*
398 * Sony Vaio FZ-240E -
399 * reset and GET ID commands issued via KBD port are
400 * sometimes being delivered to AUX3.
401 */
402 .matches = {
403 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
404 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ240E"),
405 },
406 },
407 {
408 /*
409 * Most (all?) VAIOs do not have external PS/2 ports nor
410 * they implement active multiplexing properly, and
411 * MUX discovery usually messes up keyboard/touchpad.
412 */
413 .matches = {
414 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
415 DMI_MATCH(DMI_BOARD_NAME, "VAIO"),
416 },
417 },
418 {
419 /* Amoi M636/A737 */
420 .matches = {
421 DMI_MATCH(DMI_SYS_VENDOR, "Amoi Electronics CO.,LTD."),
422 DMI_MATCH(DMI_PRODUCT_NAME, "M636/A737 platform"),
423 },
424 },
425 {
426 /* Lenovo 3000 n100 */
427 .matches = {
428 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
429 DMI_MATCH(DMI_PRODUCT_NAME, "076804U"),
430 },
431 },
432 {
433 /* Lenovo XiaoXin Air 12 */
434 .matches = {
435 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
436 DMI_MATCH(DMI_PRODUCT_NAME, "80UN"),
437 },
438 },
439 {
440 .matches = {
441 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
442 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
443 },
444 },
445 {
446 /* Acer Aspire 5710 */
447 .matches = {
448 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
449 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5710"),
450 },
451 },
452 {
453 /* Acer Aspire 7738 */
454 .matches = {
455 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
456 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7738"),
457 },
458 },
459 {
460 /* Gericom Bellagio */
461 .matches = {
462 DMI_MATCH(DMI_SYS_VENDOR, "Gericom"),
463 DMI_MATCH(DMI_PRODUCT_NAME, "N34AS6"),
464 },
465 },
466 {
467 /* IBM 2656 */
468 .matches = {
469 DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
470 DMI_MATCH(DMI_PRODUCT_NAME, "2656"),
471 },
472 },
473 {
474 /* Dell XPS M1530 */
475 .matches = {
476 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
477 DMI_MATCH(DMI_PRODUCT_NAME, "XPS M1530"),
478 },
479 },
480 {
481 /* Compal HEL80I */
482 .matches = {
483 DMI_MATCH(DMI_SYS_VENDOR, "COMPAL"),
484 DMI_MATCH(DMI_PRODUCT_NAME, "HEL80I"),
485 },
486 },
487 {
488 /* Dell Vostro 1510 */
489 .matches = {
490 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
491 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro1510"),
492 },
493 },
494 {
495 /* Acer Aspire 5536 */
496 .matches = {
497 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
498 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5536"),
499 DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
500 },
501 },
502 {
503 /* Dell Vostro V13 */
504 .matches = {
505 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
506 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
507 },
508 },
509 {
510 /* Newer HP Pavilion dv4 models */
511 .matches = {
512 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
513 DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
514 },
515 },
516 {
517 /* Asus X450LCP */
518 .matches = {
519 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
520 DMI_MATCH(DMI_PRODUCT_NAME, "X450LCP"),
521 },
522 },
523 {
524 /* Avatar AVIU-145A6 */
525 .matches = {
526 DMI_MATCH(DMI_SYS_VENDOR, "Intel"),
527 DMI_MATCH(DMI_PRODUCT_NAME, "IC4I"),
528 },
529 },
530 {
531 /* TUXEDO BU1406 */
532 .matches = {
533 DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
534 DMI_MATCH(DMI_PRODUCT_NAME, "N24_25BU"),
535 },
536 },
537 {
538 /* Lenovo LaVie Z */
539 .matches = {
540 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
541 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo LaVie Z"),
542 },
543 },
544 {
545 /*
546 * Acer Aspire 5738z
547 * Touchpad stops working in mux mode when dis- + re-enabled
548 * with the touchpad enable/disable toggle hotkey
549 */
550 .matches = {
551 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
552 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5738"),
553 },
554 },
555 {
556 /* Entroware Proteus */
557 .matches = {
558 DMI_MATCH(DMI_SYS_VENDOR, "Entroware"),
559 DMI_MATCH(DMI_PRODUCT_NAME, "Proteus"),
560 DMI_MATCH(DMI_PRODUCT_VERSION, "EL07R4"),
561 },
562 },
563 { }
564 };
565
566 static const struct dmi_system_id i8042_dmi_forcemux_table[] __initconst = {
567 {
568 /*
569 * Sony Vaio VGN-CS series require MUX or the touch sensor
570 * buttons will disturb touchpad operation
571 */
572 .matches = {
573 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
574 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-CS"),
575 },
576 },
577 { }
578 };
579
580 /*
581 * On some Asus laptops, just running self tests cause problems.
582 */
583 static const struct dmi_system_id i8042_dmi_noselftest_table[] = {
584 {
585 .matches = {
586 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
587 DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
588 },
589 },
590 { }
591 };
592 static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = {
593 {
594 /* MSI Wind U-100 */
595 .matches = {
596 DMI_MATCH(DMI_BOARD_NAME, "U-100"),
597 DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
598 },
599 },
600 {
601 /* LG Electronics X110 */
602 .matches = {
603 DMI_MATCH(DMI_BOARD_NAME, "X110"),
604 DMI_MATCH(DMI_BOARD_VENDOR, "LG Electronics Inc."),
605 },
606 },
607 {
608 /* Acer Aspire One 150 */
609 .matches = {
610 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
611 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
612 },
613 },
614 {
615 .matches = {
616 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
617 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire A114-31"),
618 },
619 },
620 {
621 .matches = {
622 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
623 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire A314-31"),
624 },
625 },
626 {
627 .matches = {
628 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
629 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire A315-31"),
630 },
631 },
632 {
633 .matches = {
634 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
635 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire ES1-132"),
636 },
637 },
638 {
639 .matches = {
640 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
641 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire ES1-332"),
642 },
643 },
644 {
645 .matches = {
646 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
647 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire ES1-432"),
648 },
649 },
650 {
651 .matches = {
652 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
653 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate Spin B118-RN"),
654 },
655 },
656 {
657 /* Advent 4211 */
658 .matches = {
659 DMI_MATCH(DMI_SYS_VENDOR, "DIXONSXP"),
660 DMI_MATCH(DMI_PRODUCT_NAME, "Advent 4211"),
661 },
662 },
663 {
664 /* Medion Akoya Mini E1210 */
665 .matches = {
666 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
667 DMI_MATCH(DMI_PRODUCT_NAME, "E1210"),
668 },
669 },
670 {
671 /* Medion Akoya E1222 */
672 .matches = {
673 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
674 DMI_MATCH(DMI_PRODUCT_NAME, "E122X"),
675 },
676 },
677 {
678 /* Mivvy M310 */
679 .matches = {
680 DMI_MATCH(DMI_SYS_VENDOR, "VIOOO"),
681 DMI_MATCH(DMI_PRODUCT_NAME, "N10"),
682 },
683 },
684 {
685 /* Dell Vostro 1320 */
686 .matches = {
687 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
688 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1320"),
689 },
690 },
691 {
692 /* Dell Vostro 1520 */
693 .matches = {
694 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
695 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1520"),
696 },
697 },
698 {
699 /* Dell Vostro 1720 */
700 .matches = {
701 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
702 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1720"),
703 },
704 },
705 {
706 /* Lenovo Ideapad U455 */
707 .matches = {
708 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
709 DMI_MATCH(DMI_PRODUCT_NAME, "20046"),
710 },
711 },
712 {
713 /* Lenovo ThinkPad L460 */
714 .matches = {
715 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
716 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L460"),
717 },
718 },
719 {
720 /* Clevo P650RS, 650RP6, Sager NP8152-S, and others */
721 .matches = {
722 DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
723 DMI_MATCH(DMI_PRODUCT_NAME, "P65xRP"),
724 },
725 },
726 {
727 /* Lenovo ThinkPad Twist S230u */
728 .matches = {
729 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
730 DMI_MATCH(DMI_PRODUCT_NAME, "33474HU"),
731 },
732 },
733 {
734 /* Entroware Proteus */
735 .matches = {
736 DMI_MATCH(DMI_SYS_VENDOR, "Entroware"),
737 DMI_MATCH(DMI_PRODUCT_NAME, "Proteus"),
738 DMI_MATCH(DMI_PRODUCT_VERSION, "EL07R4"),
739 },
740 },
741 { }
742 };
743
744 #ifdef CONFIG_PNP
745 static const struct dmi_system_id __initconst i8042_dmi_nopnp_table[] = {
746 {
747 /* Intel MBO Desktop D845PESV */
748 .matches = {
749 DMI_MATCH(DMI_BOARD_NAME, "D845PESV"),
750 DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
751 },
752 },
753 {
754 /*
755 * Intel NUC D54250WYK - does not have i8042 controller but
756 * declares PS/2 devices in DSDT.
757 */
758 .matches = {
759 DMI_MATCH(DMI_BOARD_NAME, "D54250WYK"),
760 DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
761 },
762 },
763 {
764 /* MSI Wind U-100 */
765 .matches = {
766 DMI_MATCH(DMI_BOARD_NAME, "U-100"),
767 DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
768 },
769 },
770 {
771 /* Acer Aspire 5 A515 */
772 .matches = {
773 DMI_MATCH(DMI_BOARD_NAME, "Grumpy_PK"),
774 DMI_MATCH(DMI_BOARD_VENDOR, "PK"),
775 },
776 },
777 { }
778 };
779
780 static const struct dmi_system_id __initconst i8042_dmi_laptop_table[] = {
781 {
782 .matches = {
783 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
784 },
785 },
786 {
787 .matches = {
788 DMI_MATCH(DMI_CHASSIS_TYPE, "9"), /* Laptop */
789 },
790 },
791 {
792 .matches = {
793 DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
794 },
795 },
796 {
797 .matches = {
798 DMI_MATCH(DMI_CHASSIS_TYPE, "14"), /* Sub-Notebook */
799 },
800 },
801 { }
802 };
803 #endif
804
805 static const struct dmi_system_id __initconst i8042_dmi_notimeout_table[] = {
806 {
807 /* Dell Vostro V13 */
808 .matches = {
809 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
810 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
811 },
812 },
813 {
814 /* Newer HP Pavilion dv4 models */
815 .matches = {
816 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
817 DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
818 },
819 },
820 {
821 /* Fujitsu A544 laptop */
822 /* https://bugzilla.redhat.com/show_bug.cgi?id=1111138 */
823 .matches = {
824 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
825 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK A544"),
826 },
827 },
828 {
829 /* Fujitsu AH544 laptop */
830 /* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
831 .matches = {
832 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
833 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK AH544"),
834 },
835 },
836 {
837 /* Fujitsu U574 laptop */
838 /* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
839 .matches = {
840 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
841 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U574"),
842 },
843 },
844 {
845 /* Fujitsu UH554 laptop */
846 .matches = {
847 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
848 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK UH544"),
849 },
850 },
851 { }
852 };
853
854 /*
855 * Some Wistron based laptops need us to explicitly enable the 'Dritek
856 * keyboard extension' to make their extra keys start generating scancodes.
857 * Originally, this was just confined to older laptops, but a few Acer laptops
858 * have turned up in 2007 that also need this again.
859 */
860 static const struct dmi_system_id __initconst i8042_dmi_dritek_table[] = {
861 {
862 /* Acer Aspire 5100 */
863 .matches = {
864 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
865 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
866 },
867 },
868 {
869 /* Acer Aspire 5610 */
870 .matches = {
871 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
872 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
873 },
874 },
875 {
876 /* Acer Aspire 5630 */
877 .matches = {
878 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
879 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
880 },
881 },
882 {
883 /* Acer Aspire 5650 */
884 .matches = {
885 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
886 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
887 },
888 },
889 {
890 /* Acer Aspire 5680 */
891 .matches = {
892 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
893 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
894 },
895 },
896 {
897 /* Acer Aspire 5720 */
898 .matches = {
899 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
900 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5720"),
901 },
902 },
903 {
904 /* Acer Aspire 9110 */
905 .matches = {
906 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
907 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
908 },
909 },
910 {
911 /* Acer TravelMate 660 */
912 .matches = {
913 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
914 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 660"),
915 },
916 },
917 {
918 /* Acer TravelMate 2490 */
919 .matches = {
920 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
921 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
922 },
923 },
924 {
925 /* Acer TravelMate 4280 */
926 .matches = {
927 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
928 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4280"),
929 },
930 },
931 { }
932 };
933
934 /*
935 * Some laptops need keyboard reset before probing for the trackpad to get
936 * it detected, initialised & finally work.
937 */
938 static const struct dmi_system_id __initconst i8042_dmi_kbdreset_table[] = {
939 {
940 /* Gigabyte P35 v2 - Elantech touchpad */
941 .matches = {
942 DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
943 DMI_MATCH(DMI_PRODUCT_NAME, "P35V2"),
944 },
945 },
946 {
947 /* Aorus branded Gigabyte X3 Plus - Elantech touchpad */
948 .matches = {
949 DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
950 DMI_MATCH(DMI_PRODUCT_NAME, "X3"),
951 },
952 },
953 {
954 /* Gigabyte P34 - Elantech touchpad */
955 .matches = {
956 DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
957 DMI_MATCH(DMI_PRODUCT_NAME, "P34"),
958 },
959 },
960 {
961 /* Gigabyte P57 - Elantech touchpad */
962 .matches = {
963 DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
964 DMI_MATCH(DMI_PRODUCT_NAME, "P57"),
965 },
966 },
967 {
968 /* Schenker XMG C504 - Elantech touchpad */
969 .matches = {
970 DMI_MATCH(DMI_SYS_VENDOR, "XMG"),
971 DMI_MATCH(DMI_PRODUCT_NAME, "C504"),
972 },
973 },
974 { }
975 };
976
977 #endif /* CONFIG_X86 */
978
979 #ifdef CONFIG_PNP
980 #include <linux/pnp.h>
981
982 static bool i8042_pnp_kbd_registered;
983 static unsigned int i8042_pnp_kbd_devices;
984 static bool i8042_pnp_aux_registered;
985 static unsigned int i8042_pnp_aux_devices;
986
987 static int i8042_pnp_command_reg;
988 static int i8042_pnp_data_reg;
989 static int i8042_pnp_kbd_irq;
990 static int i8042_pnp_aux_irq;
991
992 static char i8042_pnp_kbd_name[32];
993 static char i8042_pnp_aux_name[32];
994
i8042_pnp_id_to_string(struct pnp_id * id,char * dst,int dst_size)995 static void i8042_pnp_id_to_string(struct pnp_id *id, char *dst, int dst_size)
996 {
997 strlcpy(dst, "PNP:", dst_size);
998
999 while (id) {
1000 strlcat(dst, " ", dst_size);
1001 strlcat(dst, id->id, dst_size);
1002 id = id->next;
1003 }
1004 }
1005
i8042_pnp_kbd_probe(struct pnp_dev * dev,const struct pnp_device_id * did)1006 static int i8042_pnp_kbd_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
1007 {
1008 if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
1009 i8042_pnp_data_reg = pnp_port_start(dev,0);
1010
1011 if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
1012 i8042_pnp_command_reg = pnp_port_start(dev, 1);
1013
1014 if (pnp_irq_valid(dev,0))
1015 i8042_pnp_kbd_irq = pnp_irq(dev, 0);
1016
1017 strlcpy(i8042_pnp_kbd_name, did->id, sizeof(i8042_pnp_kbd_name));
1018 if (strlen(pnp_dev_name(dev))) {
1019 strlcat(i8042_pnp_kbd_name, ":", sizeof(i8042_pnp_kbd_name));
1020 strlcat(i8042_pnp_kbd_name, pnp_dev_name(dev), sizeof(i8042_pnp_kbd_name));
1021 }
1022 i8042_pnp_id_to_string(dev->id, i8042_kbd_firmware_id,
1023 sizeof(i8042_kbd_firmware_id));
1024 i8042_kbd_fwnode = dev_fwnode(&dev->dev);
1025
1026 /* Keyboard ports are always supposed to be wakeup-enabled */
1027 device_set_wakeup_enable(&dev->dev, true);
1028
1029 i8042_pnp_kbd_devices++;
1030 return 0;
1031 }
1032
i8042_pnp_aux_probe(struct pnp_dev * dev,const struct pnp_device_id * did)1033 static int i8042_pnp_aux_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
1034 {
1035 if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
1036 i8042_pnp_data_reg = pnp_port_start(dev,0);
1037
1038 if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
1039 i8042_pnp_command_reg = pnp_port_start(dev, 1);
1040
1041 if (pnp_irq_valid(dev, 0))
1042 i8042_pnp_aux_irq = pnp_irq(dev, 0);
1043
1044 strlcpy(i8042_pnp_aux_name, did->id, sizeof(i8042_pnp_aux_name));
1045 if (strlen(pnp_dev_name(dev))) {
1046 strlcat(i8042_pnp_aux_name, ":", sizeof(i8042_pnp_aux_name));
1047 strlcat(i8042_pnp_aux_name, pnp_dev_name(dev), sizeof(i8042_pnp_aux_name));
1048 }
1049 i8042_pnp_id_to_string(dev->id, i8042_aux_firmware_id,
1050 sizeof(i8042_aux_firmware_id));
1051
1052 i8042_pnp_aux_devices++;
1053 return 0;
1054 }
1055
1056 static const struct pnp_device_id pnp_kbd_devids[] = {
1057 { .id = "PNP0300", .driver_data = 0 },
1058 { .id = "PNP0301", .driver_data = 0 },
1059 { .id = "PNP0302", .driver_data = 0 },
1060 { .id = "PNP0303", .driver_data = 0 },
1061 { .id = "PNP0304", .driver_data = 0 },
1062 { .id = "PNP0305", .driver_data = 0 },
1063 { .id = "PNP0306", .driver_data = 0 },
1064 { .id = "PNP0309", .driver_data = 0 },
1065 { .id = "PNP030a", .driver_data = 0 },
1066 { .id = "PNP030b", .driver_data = 0 },
1067 { .id = "PNP0320", .driver_data = 0 },
1068 { .id = "PNP0343", .driver_data = 0 },
1069 { .id = "PNP0344", .driver_data = 0 },
1070 { .id = "PNP0345", .driver_data = 0 },
1071 { .id = "CPQA0D7", .driver_data = 0 },
1072 { .id = "", },
1073 };
1074 MODULE_DEVICE_TABLE(pnp, pnp_kbd_devids);
1075
1076 static struct pnp_driver i8042_pnp_kbd_driver = {
1077 .name = "i8042 kbd",
1078 .id_table = pnp_kbd_devids,
1079 .probe = i8042_pnp_kbd_probe,
1080 .driver = {
1081 .probe_type = PROBE_FORCE_SYNCHRONOUS,
1082 .suppress_bind_attrs = true,
1083 },
1084 };
1085
1086 static const struct pnp_device_id pnp_aux_devids[] = {
1087 { .id = "AUI0200", .driver_data = 0 },
1088 { .id = "FJC6000", .driver_data = 0 },
1089 { .id = "FJC6001", .driver_data = 0 },
1090 { .id = "PNP0f03", .driver_data = 0 },
1091 { .id = "PNP0f0b", .driver_data = 0 },
1092 { .id = "PNP0f0e", .driver_data = 0 },
1093 { .id = "PNP0f12", .driver_data = 0 },
1094 { .id = "PNP0f13", .driver_data = 0 },
1095 { .id = "PNP0f19", .driver_data = 0 },
1096 { .id = "PNP0f1c", .driver_data = 0 },
1097 { .id = "SYN0801", .driver_data = 0 },
1098 { .id = "", },
1099 };
1100 MODULE_DEVICE_TABLE(pnp, pnp_aux_devids);
1101
1102 static struct pnp_driver i8042_pnp_aux_driver = {
1103 .name = "i8042 aux",
1104 .id_table = pnp_aux_devids,
1105 .probe = i8042_pnp_aux_probe,
1106 .driver = {
1107 .probe_type = PROBE_FORCE_SYNCHRONOUS,
1108 .suppress_bind_attrs = true,
1109 },
1110 };
1111
i8042_pnp_exit(void)1112 static void i8042_pnp_exit(void)
1113 {
1114 if (i8042_pnp_kbd_registered) {
1115 i8042_pnp_kbd_registered = false;
1116 pnp_unregister_driver(&i8042_pnp_kbd_driver);
1117 }
1118
1119 if (i8042_pnp_aux_registered) {
1120 i8042_pnp_aux_registered = false;
1121 pnp_unregister_driver(&i8042_pnp_aux_driver);
1122 }
1123 }
1124
i8042_pnp_init(void)1125 static int __init i8042_pnp_init(void)
1126 {
1127 char kbd_irq_str[4] = { 0 }, aux_irq_str[4] = { 0 };
1128 bool pnp_data_busted = false;
1129 int err;
1130
1131 #ifdef CONFIG_X86
1132 if (dmi_check_system(i8042_dmi_nopnp_table))
1133 i8042_nopnp = true;
1134 #endif
1135
1136 if (i8042_nopnp) {
1137 pr_info("PNP detection disabled\n");
1138 return 0;
1139 }
1140
1141 err = pnp_register_driver(&i8042_pnp_kbd_driver);
1142 if (!err)
1143 i8042_pnp_kbd_registered = true;
1144
1145 err = pnp_register_driver(&i8042_pnp_aux_driver);
1146 if (!err)
1147 i8042_pnp_aux_registered = true;
1148
1149 if (!i8042_pnp_kbd_devices && !i8042_pnp_aux_devices) {
1150 i8042_pnp_exit();
1151 #if defined(__ia64__)
1152 return -ENODEV;
1153 #else
1154 pr_info("PNP: No PS/2 controller found.\n");
1155 if (x86_platform.legacy.i8042 !=
1156 X86_LEGACY_I8042_EXPECTED_PRESENT)
1157 return -ENODEV;
1158 pr_info("Probing ports directly.\n");
1159 return 0;
1160 #endif
1161 }
1162
1163 if (i8042_pnp_kbd_devices)
1164 snprintf(kbd_irq_str, sizeof(kbd_irq_str),
1165 "%d", i8042_pnp_kbd_irq);
1166 if (i8042_pnp_aux_devices)
1167 snprintf(aux_irq_str, sizeof(aux_irq_str),
1168 "%d", i8042_pnp_aux_irq);
1169
1170 pr_info("PNP: PS/2 Controller [%s%s%s] at %#x,%#x irq %s%s%s\n",
1171 i8042_pnp_kbd_name, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
1172 i8042_pnp_aux_name,
1173 i8042_pnp_data_reg, i8042_pnp_command_reg,
1174 kbd_irq_str, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
1175 aux_irq_str);
1176
1177 #if defined(__ia64__)
1178 if (!i8042_pnp_kbd_devices)
1179 i8042_nokbd = true;
1180 if (!i8042_pnp_aux_devices)
1181 i8042_noaux = true;
1182 #endif
1183
1184 if (((i8042_pnp_data_reg & ~0xf) == (i8042_data_reg & ~0xf) &&
1185 i8042_pnp_data_reg != i8042_data_reg) ||
1186 !i8042_pnp_data_reg) {
1187 pr_warn("PNP: PS/2 controller has invalid data port %#x; using default %#x\n",
1188 i8042_pnp_data_reg, i8042_data_reg);
1189 i8042_pnp_data_reg = i8042_data_reg;
1190 pnp_data_busted = true;
1191 }
1192
1193 if (((i8042_pnp_command_reg & ~0xf) == (i8042_command_reg & ~0xf) &&
1194 i8042_pnp_command_reg != i8042_command_reg) ||
1195 !i8042_pnp_command_reg) {
1196 pr_warn("PNP: PS/2 controller has invalid command port %#x; using default %#x\n",
1197 i8042_pnp_command_reg, i8042_command_reg);
1198 i8042_pnp_command_reg = i8042_command_reg;
1199 pnp_data_busted = true;
1200 }
1201
1202 if (!i8042_nokbd && !i8042_pnp_kbd_irq) {
1203 pr_warn("PNP: PS/2 controller doesn't have KBD irq; using default %d\n",
1204 i8042_kbd_irq);
1205 i8042_pnp_kbd_irq = i8042_kbd_irq;
1206 pnp_data_busted = true;
1207 }
1208
1209 if (!i8042_noaux && !i8042_pnp_aux_irq) {
1210 if (!pnp_data_busted && i8042_pnp_kbd_irq) {
1211 pr_warn("PNP: PS/2 appears to have AUX port disabled, "
1212 "if this is incorrect please boot with i8042.nopnp\n");
1213 i8042_noaux = true;
1214 } else {
1215 pr_warn("PNP: PS/2 controller doesn't have AUX irq; using default %d\n",
1216 i8042_aux_irq);
1217 i8042_pnp_aux_irq = i8042_aux_irq;
1218 }
1219 }
1220
1221 i8042_data_reg = i8042_pnp_data_reg;
1222 i8042_command_reg = i8042_pnp_command_reg;
1223 i8042_kbd_irq = i8042_pnp_kbd_irq;
1224 i8042_aux_irq = i8042_pnp_aux_irq;
1225
1226 #ifdef CONFIG_X86
1227 i8042_bypass_aux_irq_test = !pnp_data_busted &&
1228 dmi_check_system(i8042_dmi_laptop_table);
1229 #endif
1230
1231 return 0;
1232 }
1233
1234 #else /* !CONFIG_PNP */
i8042_pnp_init(void)1235 static inline int i8042_pnp_init(void) { return 0; }
i8042_pnp_exit(void)1236 static inline void i8042_pnp_exit(void) { }
1237 #endif /* CONFIG_PNP */
1238
i8042_platform_init(void)1239 static int __init i8042_platform_init(void)
1240 {
1241 int retval;
1242
1243 #ifdef CONFIG_X86
1244 u8 a20_on = 0xdf;
1245 /* Just return if platform does not have i8042 controller */
1246 if (x86_platform.legacy.i8042 == X86_LEGACY_I8042_PLATFORM_ABSENT)
1247 return -ENODEV;
1248 #endif
1249
1250 /*
1251 * On ix86 platforms touching the i8042 data register region can do really
1252 * bad things. Because of this the region is always reserved on ix86 boxes.
1253 *
1254 * if (!request_region(I8042_DATA_REG, 16, "i8042"))
1255 * return -EBUSY;
1256 */
1257
1258 i8042_kbd_irq = I8042_MAP_IRQ(1);
1259 i8042_aux_irq = I8042_MAP_IRQ(12);
1260
1261 retval = i8042_pnp_init();
1262 if (retval)
1263 return retval;
1264
1265 #if defined(__ia64__)
1266 i8042_reset = I8042_RESET_ALWAYS;
1267 #endif
1268
1269 #ifdef CONFIG_X86
1270 /* Honor module parameter when value is not default */
1271 if (i8042_reset == I8042_RESET_DEFAULT) {
1272 if (dmi_check_system(i8042_dmi_reset_table))
1273 i8042_reset = I8042_RESET_ALWAYS;
1274
1275 if (dmi_check_system(i8042_dmi_noselftest_table))
1276 i8042_reset = I8042_RESET_NEVER;
1277 }
1278
1279 if (dmi_check_system(i8042_dmi_noloop_table))
1280 i8042_noloop = true;
1281
1282 if (dmi_check_system(i8042_dmi_nomux_table))
1283 i8042_nomux = true;
1284
1285 if (dmi_check_system(i8042_dmi_forcemux_table))
1286 i8042_nomux = false;
1287
1288 if (dmi_check_system(i8042_dmi_notimeout_table))
1289 i8042_notimeout = true;
1290
1291 if (dmi_check_system(i8042_dmi_dritek_table))
1292 i8042_dritek = true;
1293
1294 if (dmi_check_system(i8042_dmi_kbdreset_table))
1295 i8042_kbdreset = true;
1296
1297 /*
1298 * A20 was already enabled during early kernel init. But some buggy
1299 * BIOSes (in MSI Laptops) require A20 to be enabled using 8042 to
1300 * resume from S3. So we do it here and hope that nothing breaks.
1301 */
1302 i8042_command(&a20_on, 0x10d1);
1303 i8042_command(NULL, 0x00ff); /* Null command for SMM firmware */
1304 #endif /* CONFIG_X86 */
1305
1306 return retval;
1307 }
1308
i8042_platform_exit(void)1309 static inline void i8042_platform_exit(void)
1310 {
1311 i8042_pnp_exit();
1312 }
1313
1314 #endif /* _I8042_X86IA64IO_H */
1315
