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 },
223 {
224 .matches = {
225 DMI_MATCH(DMI_SYS_VENDOR, "ByteSpeed LLC"),
226 DMI_MATCH(DMI_PRODUCT_NAME, "ByteSpeed Laptop C15B"),
227 },
228 },
229 { }
230 };
231
232 /*
233 * Some Fujitsu notebooks are having trouble with touchpads if
234 * active multiplexing mode is activated. Luckily they don't have
235 * external PS/2 ports so we can safely disable it.
236 * ... apparently some Toshibas don't like MUX mode either and
237 * die horrible death on reboot.
238 */
239 static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
240 {
241 /* Fujitsu Lifebook P7010/P7010D */
242 .matches = {
243 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
244 DMI_MATCH(DMI_PRODUCT_NAME, "P7010"),
245 },
246 },
247 {
248 /* Fujitsu Lifebook P7010 */
249 .matches = {
250 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
251 DMI_MATCH(DMI_PRODUCT_NAME, "0000000000"),
252 },
253 },
254 {
255 /* Fujitsu Lifebook P5020D */
256 .matches = {
257 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
258 DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P Series"),
259 },
260 },
261 {
262 /* Fujitsu Lifebook S2000 */
263 .matches = {
264 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
265 DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S Series"),
266 },
267 },
268 {
269 /* Fujitsu Lifebook S6230 */
270 .matches = {
271 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
272 DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S6230"),
273 },
274 },
275 {
276 /* Fujitsu Lifebook U745 */
277 .matches = {
278 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
279 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U745"),
280 },
281 },
282 {
283 /* Fujitsu T70H */
284 .matches = {
285 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
286 DMI_MATCH(DMI_PRODUCT_NAME, "FMVLT70H"),
287 },
288 },
289 {
290 /* Fujitsu-Siemens Lifebook T3010 */
291 .matches = {
292 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
293 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK T3010"),
294 },
295 },
296 {
297 /* Fujitsu-Siemens Lifebook E4010 */
298 .matches = {
299 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
300 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E4010"),
301 },
302 },
303 {
304 /* Fujitsu-Siemens Amilo Pro 2010 */
305 .matches = {
306 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
307 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro V2010"),
308 },
309 },
310 {
311 /* Fujitsu-Siemens Amilo Pro 2030 */
312 .matches = {
313 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
314 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"),
315 },
316 },
317 {
318 /*
319 * No data is coming from the touchscreen unless KBC
320 * is in legacy mode.
321 */
322 /* Panasonic CF-29 */
323 .matches = {
324 DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
325 DMI_MATCH(DMI_PRODUCT_NAME, "CF-29"),
326 },
327 },
328 {
329 /*
330 * HP Pavilion DV4017EA -
331 * errors on MUX ports are reported without raising AUXDATA
332 * causing "spurious NAK" messages.
333 */
334 .matches = {
335 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
336 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EA032EA#ABF)"),
337 },
338 },
339 {
340 /*
341 * HP Pavilion ZT1000 -
342 * like DV4017EA does not raise AUXERR for errors on MUX ports.
343 */
344 .matches = {
345 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
346 DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion Notebook PC"),
347 DMI_MATCH(DMI_PRODUCT_VERSION, "HP Pavilion Notebook ZT1000"),
348 },
349 },
350 {
351 /*
352 * HP Pavilion DV4270ca -
353 * like DV4017EA does not raise AUXERR for errors on MUX ports.
354 */
355 .matches = {
356 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
357 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EH476UA#ABL)"),
358 },
359 },
360 {
361 .matches = {
362 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
363 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P10"),
364 },
365 },
366 {
367 .matches = {
368 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
369 DMI_MATCH(DMI_PRODUCT_NAME, "EQUIUM A110"),
370 },
371 },
372 {
373 .matches = {
374 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
375 DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE C850D"),
376 },
377 },
378 {
379 .matches = {
380 DMI_MATCH(DMI_SYS_VENDOR, "ALIENWARE"),
381 DMI_MATCH(DMI_PRODUCT_NAME, "Sentia"),
382 },
383 },
384 {
385 /* Sharp Actius MM20 */
386 .matches = {
387 DMI_MATCH(DMI_SYS_VENDOR, "SHARP"),
388 DMI_MATCH(DMI_PRODUCT_NAME, "PC-MM20 Series"),
389 },
390 },
391 {
392 /* Sony Vaio FS-115b */
393 .matches = {
394 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
395 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FS115B"),
396 },
397 },
398 {
399 /*
400 * Sony Vaio FZ-240E -
401 * reset and GET ID commands issued via KBD port are
402 * sometimes being delivered to AUX3.
403 */
404 .matches = {
405 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
406 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ240E"),
407 },
408 },
409 {
410 /*
411 * Most (all?) VAIOs do not have external PS/2 ports nor
412 * they implement active multiplexing properly, and
413 * MUX discovery usually messes up keyboard/touchpad.
414 */
415 .matches = {
416 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
417 DMI_MATCH(DMI_BOARD_NAME, "VAIO"),
418 },
419 },
420 {
421 /* Amoi M636/A737 */
422 .matches = {
423 DMI_MATCH(DMI_SYS_VENDOR, "Amoi Electronics CO.,LTD."),
424 DMI_MATCH(DMI_PRODUCT_NAME, "M636/A737 platform"),
425 },
426 },
427 {
428 /* Lenovo 3000 n100 */
429 .matches = {
430 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
431 DMI_MATCH(DMI_PRODUCT_NAME, "076804U"),
432 },
433 },
434 {
435 /* Lenovo XiaoXin Air 12 */
436 .matches = {
437 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
438 DMI_MATCH(DMI_PRODUCT_NAME, "80UN"),
439 },
440 },
441 {
442 .matches = {
443 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
444 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
445 },
446 },
447 {
448 /* Acer Aspire 5710 */
449 .matches = {
450 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
451 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5710"),
452 },
453 },
454 {
455 /* Acer Aspire 7738 */
456 .matches = {
457 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
458 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7738"),
459 },
460 },
461 {
462 /* Gericom Bellagio */
463 .matches = {
464 DMI_MATCH(DMI_SYS_VENDOR, "Gericom"),
465 DMI_MATCH(DMI_PRODUCT_NAME, "N34AS6"),
466 },
467 },
468 {
469 /* IBM 2656 */
470 .matches = {
471 DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
472 DMI_MATCH(DMI_PRODUCT_NAME, "2656"),
473 },
474 },
475 {
476 /* Dell XPS M1530 */
477 .matches = {
478 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
479 DMI_MATCH(DMI_PRODUCT_NAME, "XPS M1530"),
480 },
481 },
482 {
483 /* Compal HEL80I */
484 .matches = {
485 DMI_MATCH(DMI_SYS_VENDOR, "COMPAL"),
486 DMI_MATCH(DMI_PRODUCT_NAME, "HEL80I"),
487 },
488 },
489 {
490 /* Dell Vostro 1510 */
491 .matches = {
492 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
493 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro1510"),
494 },
495 },
496 {
497 /* Acer Aspire 5536 */
498 .matches = {
499 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
500 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5536"),
501 DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
502 },
503 },
504 {
505 /* Dell Vostro V13 */
506 .matches = {
507 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
508 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
509 },
510 },
511 {
512 /* Newer HP Pavilion dv4 models */
513 .matches = {
514 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
515 DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
516 },
517 },
518 {
519 /* Asus X450LCP */
520 .matches = {
521 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
522 DMI_MATCH(DMI_PRODUCT_NAME, "X450LCP"),
523 },
524 },
525 {
526 /* Avatar AVIU-145A6 */
527 .matches = {
528 DMI_MATCH(DMI_SYS_VENDOR, "Intel"),
529 DMI_MATCH(DMI_PRODUCT_NAME, "IC4I"),
530 },
531 },
532 {
533 /* TUXEDO BU1406 */
534 .matches = {
535 DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
536 DMI_MATCH(DMI_PRODUCT_NAME, "N24_25BU"),
537 },
538 },
539 {
540 /* Lenovo LaVie Z */
541 .matches = {
542 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
543 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo LaVie Z"),
544 },
545 },
546 {
547 /*
548 * Acer Aspire 5738z
549 * Touchpad stops working in mux mode when dis- + re-enabled
550 * with the touchpad enable/disable toggle hotkey
551 */
552 .matches = {
553 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
554 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5738"),
555 },
556 },
557 {
558 /* Entroware Proteus */
559 .matches = {
560 DMI_MATCH(DMI_SYS_VENDOR, "Entroware"),
561 DMI_MATCH(DMI_PRODUCT_NAME, "Proteus"),
562 DMI_MATCH(DMI_PRODUCT_VERSION, "EL07R4"),
563 },
564 },
565 { }
566 };
567
568 static const struct dmi_system_id i8042_dmi_forcemux_table[] __initconst = {
569 {
570 /*
571 * Sony Vaio VGN-CS series require MUX or the touch sensor
572 * buttons will disturb touchpad operation
573 */
574 .matches = {
575 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
576 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-CS"),
577 },
578 },
579 { }
580 };
581
582 /*
583 * On some Asus laptops, just running self tests cause problems.
584 */
585 static const struct dmi_system_id i8042_dmi_noselftest_table[] = {
586 {
587 .matches = {
588 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
589 DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
590 },
591 }, {
592 .matches = {
593 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
594 DMI_MATCH(DMI_CHASSIS_TYPE, "31"), /* Convertible Notebook */
595 },
596 },
597 { }
598 };
599 static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = {
600 {
601 /* MSI Wind U-100 */
602 .matches = {
603 DMI_MATCH(DMI_BOARD_NAME, "U-100"),
604 DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
605 },
606 },
607 {
608 /* LG Electronics X110 */
609 .matches = {
610 DMI_MATCH(DMI_BOARD_NAME, "X110"),
611 DMI_MATCH(DMI_BOARD_VENDOR, "LG Electronics Inc."),
612 },
613 },
614 {
615 /* Acer Aspire One 150 */
616 .matches = {
617 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
618 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
619 },
620 },
621 {
622 .matches = {
623 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
624 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire A114-31"),
625 },
626 },
627 {
628 .matches = {
629 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
630 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire A314-31"),
631 },
632 },
633 {
634 .matches = {
635 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
636 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire A315-31"),
637 },
638 },
639 {
640 .matches = {
641 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
642 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire ES1-132"),
643 },
644 },
645 {
646 .matches = {
647 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
648 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire ES1-332"),
649 },
650 },
651 {
652 .matches = {
653 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
654 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire ES1-432"),
655 },
656 },
657 {
658 .matches = {
659 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
660 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate Spin B118-RN"),
661 },
662 },
663 {
664 /* Advent 4211 */
665 .matches = {
666 DMI_MATCH(DMI_SYS_VENDOR, "DIXONSXP"),
667 DMI_MATCH(DMI_PRODUCT_NAME, "Advent 4211"),
668 },
669 },
670 {
671 /* Medion Akoya Mini E1210 */
672 .matches = {
673 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
674 DMI_MATCH(DMI_PRODUCT_NAME, "E1210"),
675 },
676 },
677 {
678 /* Medion Akoya E1222 */
679 .matches = {
680 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
681 DMI_MATCH(DMI_PRODUCT_NAME, "E122X"),
682 },
683 },
684 {
685 /* Mivvy M310 */
686 .matches = {
687 DMI_MATCH(DMI_SYS_VENDOR, "VIOOO"),
688 DMI_MATCH(DMI_PRODUCT_NAME, "N10"),
689 },
690 },
691 {
692 /* Dell Vostro 1320 */
693 .matches = {
694 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
695 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1320"),
696 },
697 },
698 {
699 /* Dell Vostro 1520 */
700 .matches = {
701 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
702 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1520"),
703 },
704 },
705 {
706 /* Dell Vostro 1720 */
707 .matches = {
708 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
709 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1720"),
710 },
711 },
712 {
713 /* Lenovo Ideapad U455 */
714 .matches = {
715 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
716 DMI_MATCH(DMI_PRODUCT_NAME, "20046"),
717 },
718 },
719 {
720 /* Lenovo ThinkPad L460 */
721 .matches = {
722 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
723 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L460"),
724 },
725 },
726 {
727 /* Clevo P650RS, 650RP6, Sager NP8152-S, and others */
728 .matches = {
729 DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
730 DMI_MATCH(DMI_PRODUCT_NAME, "P65xRP"),
731 },
732 },
733 {
734 /* Lenovo ThinkPad Twist S230u */
735 .matches = {
736 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
737 DMI_MATCH(DMI_PRODUCT_NAME, "33474HU"),
738 },
739 },
740 {
741 /* Entroware Proteus */
742 .matches = {
743 DMI_MATCH(DMI_SYS_VENDOR, "Entroware"),
744 DMI_MATCH(DMI_PRODUCT_NAME, "Proteus"),
745 DMI_MATCH(DMI_PRODUCT_VERSION, "EL07R4"),
746 },
747 },
748 { }
749 };
750
751 #ifdef CONFIG_PNP
752 static const struct dmi_system_id __initconst i8042_dmi_nopnp_table[] = {
753 {
754 /* Intel MBO Desktop D845PESV */
755 .matches = {
756 DMI_MATCH(DMI_BOARD_NAME, "D845PESV"),
757 DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
758 },
759 },
760 {
761 /*
762 * Intel NUC D54250WYK - does not have i8042 controller but
763 * declares PS/2 devices in DSDT.
764 */
765 .matches = {
766 DMI_MATCH(DMI_BOARD_NAME, "D54250WYK"),
767 DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
768 },
769 },
770 {
771 /* MSI Wind U-100 */
772 .matches = {
773 DMI_MATCH(DMI_BOARD_NAME, "U-100"),
774 DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
775 },
776 },
777 {
778 /* Acer Aspire 5 A515 */
779 .matches = {
780 DMI_MATCH(DMI_BOARD_NAME, "Grumpy_PK"),
781 DMI_MATCH(DMI_BOARD_VENDOR, "PK"),
782 },
783 },
784 { }
785 };
786
787 static const struct dmi_system_id __initconst i8042_dmi_laptop_table[] = {
788 {
789 .matches = {
790 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
791 },
792 },
793 {
794 .matches = {
795 DMI_MATCH(DMI_CHASSIS_TYPE, "9"), /* Laptop */
796 },
797 },
798 {
799 .matches = {
800 DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
801 },
802 },
803 {
804 .matches = {
805 DMI_MATCH(DMI_CHASSIS_TYPE, "14"), /* Sub-Notebook */
806 },
807 },
808 { }
809 };
810 #endif
811
812 static const struct dmi_system_id __initconst i8042_dmi_notimeout_table[] = {
813 {
814 /* Dell Vostro V13 */
815 .matches = {
816 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
817 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
818 },
819 },
820 {
821 /* Newer HP Pavilion dv4 models */
822 .matches = {
823 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
824 DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
825 },
826 },
827 {
828 /* Fujitsu A544 laptop */
829 /* https://bugzilla.redhat.com/show_bug.cgi?id=1111138 */
830 .matches = {
831 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
832 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK A544"),
833 },
834 },
835 {
836 /* Fujitsu AH544 laptop */
837 /* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
838 .matches = {
839 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
840 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK AH544"),
841 },
842 },
843 {
844 /* Fujitsu U574 laptop */
845 /* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
846 .matches = {
847 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
848 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U574"),
849 },
850 },
851 {
852 /* Fujitsu UH554 laptop */
853 .matches = {
854 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
855 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK UH544"),
856 },
857 },
858 { }
859 };
860
861 /*
862 * Some Wistron based laptops need us to explicitly enable the 'Dritek
863 * keyboard extension' to make their extra keys start generating scancodes.
864 * Originally, this was just confined to older laptops, but a few Acer laptops
865 * have turned up in 2007 that also need this again.
866 */
867 static const struct dmi_system_id __initconst i8042_dmi_dritek_table[] = {
868 {
869 /* Acer Aspire 5100 */
870 .matches = {
871 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
872 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
873 },
874 },
875 {
876 /* Acer Aspire 5610 */
877 .matches = {
878 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
879 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
880 },
881 },
882 {
883 /* Acer Aspire 5630 */
884 .matches = {
885 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
886 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
887 },
888 },
889 {
890 /* Acer Aspire 5650 */
891 .matches = {
892 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
893 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
894 },
895 },
896 {
897 /* Acer Aspire 5680 */
898 .matches = {
899 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
900 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
901 },
902 },
903 {
904 /* Acer Aspire 5720 */
905 .matches = {
906 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
907 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5720"),
908 },
909 },
910 {
911 /* Acer Aspire 9110 */
912 .matches = {
913 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
914 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
915 },
916 },
917 {
918 /* Acer TravelMate 660 */
919 .matches = {
920 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
921 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 660"),
922 },
923 },
924 {
925 /* Acer TravelMate 2490 */
926 .matches = {
927 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
928 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
929 },
930 },
931 {
932 /* Acer TravelMate 4280 */
933 .matches = {
934 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
935 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4280"),
936 },
937 },
938 { }
939 };
940
941 /*
942 * Some laptops need keyboard reset before probing for the trackpad to get
943 * it detected, initialised & finally work.
944 */
945 static const struct dmi_system_id __initconst i8042_dmi_kbdreset_table[] = {
946 {
947 /* Gigabyte P35 v2 - Elantech touchpad */
948 .matches = {
949 DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
950 DMI_MATCH(DMI_PRODUCT_NAME, "P35V2"),
951 },
952 },
953 {
954 /* Aorus branded Gigabyte X3 Plus - Elantech touchpad */
955 .matches = {
956 DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
957 DMI_MATCH(DMI_PRODUCT_NAME, "X3"),
958 },
959 },
960 {
961 /* Gigabyte P34 - Elantech touchpad */
962 .matches = {
963 DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
964 DMI_MATCH(DMI_PRODUCT_NAME, "P34"),
965 },
966 },
967 {
968 /* Gigabyte P57 - Elantech touchpad */
969 .matches = {
970 DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
971 DMI_MATCH(DMI_PRODUCT_NAME, "P57"),
972 },
973 },
974 {
975 /* Schenker XMG C504 - Elantech touchpad */
976 .matches = {
977 DMI_MATCH(DMI_SYS_VENDOR, "XMG"),
978 DMI_MATCH(DMI_PRODUCT_NAME, "C504"),
979 },
980 },
981 { }
982 };
983
984 #endif /* CONFIG_X86 */
985
986 #ifdef CONFIG_PNP
987 #include <linux/pnp.h>
988
989 static bool i8042_pnp_kbd_registered;
990 static unsigned int i8042_pnp_kbd_devices;
991 static bool i8042_pnp_aux_registered;
992 static unsigned int i8042_pnp_aux_devices;
993
994 static int i8042_pnp_command_reg;
995 static int i8042_pnp_data_reg;
996 static int i8042_pnp_kbd_irq;
997 static int i8042_pnp_aux_irq;
998
999 static char i8042_pnp_kbd_name[32];
1000 static char i8042_pnp_aux_name[32];
1001
i8042_pnp_id_to_string(struct pnp_id * id,char * dst,int dst_size)1002 static void i8042_pnp_id_to_string(struct pnp_id *id, char *dst, int dst_size)
1003 {
1004 strlcpy(dst, "PNP:", dst_size);
1005
1006 while (id) {
1007 strlcat(dst, " ", dst_size);
1008 strlcat(dst, id->id, dst_size);
1009 id = id->next;
1010 }
1011 }
1012
i8042_pnp_kbd_probe(struct pnp_dev * dev,const struct pnp_device_id * did)1013 static int i8042_pnp_kbd_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
1014 {
1015 if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
1016 i8042_pnp_data_reg = pnp_port_start(dev,0);
1017
1018 if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
1019 i8042_pnp_command_reg = pnp_port_start(dev, 1);
1020
1021 if (pnp_irq_valid(dev,0))
1022 i8042_pnp_kbd_irq = pnp_irq(dev, 0);
1023
1024 strlcpy(i8042_pnp_kbd_name, did->id, sizeof(i8042_pnp_kbd_name));
1025 if (strlen(pnp_dev_name(dev))) {
1026 strlcat(i8042_pnp_kbd_name, ":", sizeof(i8042_pnp_kbd_name));
1027 strlcat(i8042_pnp_kbd_name, pnp_dev_name(dev), sizeof(i8042_pnp_kbd_name));
1028 }
1029 i8042_pnp_id_to_string(dev->id, i8042_kbd_firmware_id,
1030 sizeof(i8042_kbd_firmware_id));
1031 i8042_kbd_fwnode = dev_fwnode(&dev->dev);
1032
1033 /* Keyboard ports are always supposed to be wakeup-enabled */
1034 device_set_wakeup_enable(&dev->dev, true);
1035
1036 i8042_pnp_kbd_devices++;
1037 return 0;
1038 }
1039
i8042_pnp_aux_probe(struct pnp_dev * dev,const struct pnp_device_id * did)1040 static int i8042_pnp_aux_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
1041 {
1042 if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
1043 i8042_pnp_data_reg = pnp_port_start(dev,0);
1044
1045 if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
1046 i8042_pnp_command_reg = pnp_port_start(dev, 1);
1047
1048 if (pnp_irq_valid(dev, 0))
1049 i8042_pnp_aux_irq = pnp_irq(dev, 0);
1050
1051 strlcpy(i8042_pnp_aux_name, did->id, sizeof(i8042_pnp_aux_name));
1052 if (strlen(pnp_dev_name(dev))) {
1053 strlcat(i8042_pnp_aux_name, ":", sizeof(i8042_pnp_aux_name));
1054 strlcat(i8042_pnp_aux_name, pnp_dev_name(dev), sizeof(i8042_pnp_aux_name));
1055 }
1056 i8042_pnp_id_to_string(dev->id, i8042_aux_firmware_id,
1057 sizeof(i8042_aux_firmware_id));
1058
1059 i8042_pnp_aux_devices++;
1060 return 0;
1061 }
1062
1063 static const struct pnp_device_id pnp_kbd_devids[] = {
1064 { .id = "PNP0300", .driver_data = 0 },
1065 { .id = "PNP0301", .driver_data = 0 },
1066 { .id = "PNP0302", .driver_data = 0 },
1067 { .id = "PNP0303", .driver_data = 0 },
1068 { .id = "PNP0304", .driver_data = 0 },
1069 { .id = "PNP0305", .driver_data = 0 },
1070 { .id = "PNP0306", .driver_data = 0 },
1071 { .id = "PNP0309", .driver_data = 0 },
1072 { .id = "PNP030a", .driver_data = 0 },
1073 { .id = "PNP030b", .driver_data = 0 },
1074 { .id = "PNP0320", .driver_data = 0 },
1075 { .id = "PNP0343", .driver_data = 0 },
1076 { .id = "PNP0344", .driver_data = 0 },
1077 { .id = "PNP0345", .driver_data = 0 },
1078 { .id = "CPQA0D7", .driver_data = 0 },
1079 { .id = "", },
1080 };
1081 MODULE_DEVICE_TABLE(pnp, pnp_kbd_devids);
1082
1083 static struct pnp_driver i8042_pnp_kbd_driver = {
1084 .name = "i8042 kbd",
1085 .id_table = pnp_kbd_devids,
1086 .probe = i8042_pnp_kbd_probe,
1087 .driver = {
1088 .probe_type = PROBE_FORCE_SYNCHRONOUS,
1089 .suppress_bind_attrs = true,
1090 },
1091 };
1092
1093 static const struct pnp_device_id pnp_aux_devids[] = {
1094 { .id = "AUI0200", .driver_data = 0 },
1095 { .id = "FJC6000", .driver_data = 0 },
1096 { .id = "FJC6001", .driver_data = 0 },
1097 { .id = "PNP0f03", .driver_data = 0 },
1098 { .id = "PNP0f0b", .driver_data = 0 },
1099 { .id = "PNP0f0e", .driver_data = 0 },
1100 { .id = "PNP0f12", .driver_data = 0 },
1101 { .id = "PNP0f13", .driver_data = 0 },
1102 { .id = "PNP0f19", .driver_data = 0 },
1103 { .id = "PNP0f1c", .driver_data = 0 },
1104 { .id = "SYN0801", .driver_data = 0 },
1105 { .id = "", },
1106 };
1107 MODULE_DEVICE_TABLE(pnp, pnp_aux_devids);
1108
1109 static struct pnp_driver i8042_pnp_aux_driver = {
1110 .name = "i8042 aux",
1111 .id_table = pnp_aux_devids,
1112 .probe = i8042_pnp_aux_probe,
1113 .driver = {
1114 .probe_type = PROBE_FORCE_SYNCHRONOUS,
1115 .suppress_bind_attrs = true,
1116 },
1117 };
1118
i8042_pnp_exit(void)1119 static void i8042_pnp_exit(void)
1120 {
1121 if (i8042_pnp_kbd_registered) {
1122 i8042_pnp_kbd_registered = false;
1123 pnp_unregister_driver(&i8042_pnp_kbd_driver);
1124 }
1125
1126 if (i8042_pnp_aux_registered) {
1127 i8042_pnp_aux_registered = false;
1128 pnp_unregister_driver(&i8042_pnp_aux_driver);
1129 }
1130 }
1131
i8042_pnp_init(void)1132 static int __init i8042_pnp_init(void)
1133 {
1134 char kbd_irq_str[4] = { 0 }, aux_irq_str[4] = { 0 };
1135 bool pnp_data_busted = false;
1136 int err;
1137
1138 #ifdef CONFIG_X86
1139 if (dmi_check_system(i8042_dmi_nopnp_table))
1140 i8042_nopnp = true;
1141 #endif
1142
1143 if (i8042_nopnp) {
1144 pr_info("PNP detection disabled\n");
1145 return 0;
1146 }
1147
1148 err = pnp_register_driver(&i8042_pnp_kbd_driver);
1149 if (!err)
1150 i8042_pnp_kbd_registered = true;
1151
1152 err = pnp_register_driver(&i8042_pnp_aux_driver);
1153 if (!err)
1154 i8042_pnp_aux_registered = true;
1155
1156 if (!i8042_pnp_kbd_devices && !i8042_pnp_aux_devices) {
1157 i8042_pnp_exit();
1158 #if defined(__ia64__)
1159 return -ENODEV;
1160 #else
1161 pr_info("PNP: No PS/2 controller found.\n");
1162 if (x86_platform.legacy.i8042 !=
1163 X86_LEGACY_I8042_EXPECTED_PRESENT)
1164 return -ENODEV;
1165 pr_info("Probing ports directly.\n");
1166 return 0;
1167 #endif
1168 }
1169
1170 if (i8042_pnp_kbd_devices)
1171 snprintf(kbd_irq_str, sizeof(kbd_irq_str),
1172 "%d", i8042_pnp_kbd_irq);
1173 if (i8042_pnp_aux_devices)
1174 snprintf(aux_irq_str, sizeof(aux_irq_str),
1175 "%d", i8042_pnp_aux_irq);
1176
1177 pr_info("PNP: PS/2 Controller [%s%s%s] at %#x,%#x irq %s%s%s\n",
1178 i8042_pnp_kbd_name, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
1179 i8042_pnp_aux_name,
1180 i8042_pnp_data_reg, i8042_pnp_command_reg,
1181 kbd_irq_str, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
1182 aux_irq_str);
1183
1184 #if defined(__ia64__)
1185 if (!i8042_pnp_kbd_devices)
1186 i8042_nokbd = true;
1187 if (!i8042_pnp_aux_devices)
1188 i8042_noaux = true;
1189 #endif
1190
1191 if (((i8042_pnp_data_reg & ~0xf) == (i8042_data_reg & ~0xf) &&
1192 i8042_pnp_data_reg != i8042_data_reg) ||
1193 !i8042_pnp_data_reg) {
1194 pr_warn("PNP: PS/2 controller has invalid data port %#x; using default %#x\n",
1195 i8042_pnp_data_reg, i8042_data_reg);
1196 i8042_pnp_data_reg = i8042_data_reg;
1197 pnp_data_busted = true;
1198 }
1199
1200 if (((i8042_pnp_command_reg & ~0xf) == (i8042_command_reg & ~0xf) &&
1201 i8042_pnp_command_reg != i8042_command_reg) ||
1202 !i8042_pnp_command_reg) {
1203 pr_warn("PNP: PS/2 controller has invalid command port %#x; using default %#x\n",
1204 i8042_pnp_command_reg, i8042_command_reg);
1205 i8042_pnp_command_reg = i8042_command_reg;
1206 pnp_data_busted = true;
1207 }
1208
1209 if (!i8042_nokbd && !i8042_pnp_kbd_irq) {
1210 pr_warn("PNP: PS/2 controller doesn't have KBD irq; using default %d\n",
1211 i8042_kbd_irq);
1212 i8042_pnp_kbd_irq = i8042_kbd_irq;
1213 pnp_data_busted = true;
1214 }
1215
1216 if (!i8042_noaux && !i8042_pnp_aux_irq) {
1217 if (!pnp_data_busted && i8042_pnp_kbd_irq) {
1218 pr_warn("PNP: PS/2 appears to have AUX port disabled, "
1219 "if this is incorrect please boot with i8042.nopnp\n");
1220 i8042_noaux = true;
1221 } else {
1222 pr_warn("PNP: PS/2 controller doesn't have AUX irq; using default %d\n",
1223 i8042_aux_irq);
1224 i8042_pnp_aux_irq = i8042_aux_irq;
1225 }
1226 }
1227
1228 i8042_data_reg = i8042_pnp_data_reg;
1229 i8042_command_reg = i8042_pnp_command_reg;
1230 i8042_kbd_irq = i8042_pnp_kbd_irq;
1231 i8042_aux_irq = i8042_pnp_aux_irq;
1232
1233 #ifdef CONFIG_X86
1234 i8042_bypass_aux_irq_test = !pnp_data_busted &&
1235 dmi_check_system(i8042_dmi_laptop_table);
1236 #endif
1237
1238 return 0;
1239 }
1240
1241 #else /* !CONFIG_PNP */
i8042_pnp_init(void)1242 static inline int i8042_pnp_init(void) { return 0; }
i8042_pnp_exit(void)1243 static inline void i8042_pnp_exit(void) { }
1244 #endif /* CONFIG_PNP */
1245
i8042_platform_init(void)1246 static int __init i8042_platform_init(void)
1247 {
1248 int retval;
1249
1250 #ifdef CONFIG_X86
1251 u8 a20_on = 0xdf;
1252 /* Just return if platform does not have i8042 controller */
1253 if (x86_platform.legacy.i8042 == X86_LEGACY_I8042_PLATFORM_ABSENT)
1254 return -ENODEV;
1255 #endif
1256
1257 /*
1258 * On ix86 platforms touching the i8042 data register region can do really
1259 * bad things. Because of this the region is always reserved on ix86 boxes.
1260 *
1261 * if (!request_region(I8042_DATA_REG, 16, "i8042"))
1262 * return -EBUSY;
1263 */
1264
1265 i8042_kbd_irq = I8042_MAP_IRQ(1);
1266 i8042_aux_irq = I8042_MAP_IRQ(12);
1267
1268 retval = i8042_pnp_init();
1269 if (retval)
1270 return retval;
1271
1272 #if defined(__ia64__)
1273 i8042_reset = I8042_RESET_ALWAYS;
1274 #endif
1275
1276 #ifdef CONFIG_X86
1277 /* Honor module parameter when value is not default */
1278 if (i8042_reset == I8042_RESET_DEFAULT) {
1279 if (dmi_check_system(i8042_dmi_reset_table))
1280 i8042_reset = I8042_RESET_ALWAYS;
1281
1282 if (dmi_check_system(i8042_dmi_noselftest_table))
1283 i8042_reset = I8042_RESET_NEVER;
1284 }
1285
1286 if (dmi_check_system(i8042_dmi_noloop_table))
1287 i8042_noloop = true;
1288
1289 if (dmi_check_system(i8042_dmi_nomux_table))
1290 i8042_nomux = true;
1291
1292 if (dmi_check_system(i8042_dmi_forcemux_table))
1293 i8042_nomux = false;
1294
1295 if (dmi_check_system(i8042_dmi_notimeout_table))
1296 i8042_notimeout = true;
1297
1298 if (dmi_check_system(i8042_dmi_dritek_table))
1299 i8042_dritek = true;
1300
1301 if (dmi_check_system(i8042_dmi_kbdreset_table))
1302 i8042_kbdreset = true;
1303
1304 /*
1305 * A20 was already enabled during early kernel init. But some buggy
1306 * BIOSes (in MSI Laptops) require A20 to be enabled using 8042 to
1307 * resume from S3. So we do it here and hope that nothing breaks.
1308 */
1309 i8042_command(&a20_on, 0x10d1);
1310 i8042_command(NULL, 0x00ff); /* Null command for SMM firmware */
1311 #endif /* CONFIG_X86 */
1312
1313 return retval;
1314 }
1315
i8042_platform_exit(void)1316 static inline void i8042_platform_exit(void)
1317 {
1318 i8042_pnp_exit();
1319 }
1320
1321 #endif /* _I8042_X86IA64IO_H */
1322
