summaryrefslogtreecommitdiffstats
path: root/drivers/input/serio/i8042-x86ia64io.h
blob: 136f6e7bf797767256e66c1c083cb80c55cd7a1b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
#ifndef _I8042_X86IA64IO_H
#define _I8042_X86IA64IO_H

/*
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 */

#ifdef CONFIG_X86
#include <asm/x86_init.h>
#endif

/*
 * Names.
 */

#define I8042_KBD_PHYS_DESC "isa0060/serio0"
#define I8042_AUX_PHYS_DESC "isa0060/serio1"
#define I8042_MUX_PHYS_DESC "isa0060/serio%d"

/*
 * IRQs.
 */

#if defined(__ia64__)
# define I8042_MAP_IRQ(x)	isa_irq_to_vector((x))
#else
# define I8042_MAP_IRQ(x)	(x)
#endif

#define I8042_KBD_IRQ	i8042_kbd_irq
#define I8042_AUX_IRQ	i8042_aux_irq

static int i8042_kbd_irq;
static int i8042_aux_irq;

/*
 * Register numbers.
 */

#define I8042_COMMAND_REG	i8042_command_reg
#define I8042_STATUS_REG	i8042_command_reg
#define I8042_DATA_REG		i8042_data_reg

static int i8042_command_reg = 0x64;
static int i8042_data_reg = 0x60;


static inline int i8042_read_data(void)
{
	return inb(I8042_DATA_REG);
}

static inline int i8042_read_status(void)
{
	return inb(I8042_STATUS_REG);
}

static inline void i8042_write_data(int val)
{
	outb(val, I8042_DATA_REG);
}

static inline void i8042_write_command(int val)
{
	outb(val, I8042_COMMAND_REG);
}

#ifdef CONFIG_X86

#include <linux/dmi.h>

static const struct dmi_system_id __initconst i8042_dmi_noloop_table[] = {
	{
		/*
		 * Arima-Rioworks HDAMB -
		 * AUX LOOP command does not raise AUX IRQ
		 */
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "RIOWORKS"),
			DMI_MATCH(DMI_BOARD_NAME, "HDAMB"),
			DMI_MATCH(DMI_BOARD_VERSION, "Rev E"),
		},
	},
	{
		/* ASUS G1S */
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer Inc."),
			DMI_MATCH(DMI_BOARD_NAME, "G1S"),
			DMI_MATCH(DMI_BOARD_VERSION, "1.0"),
		},
	},
	{
		/* ASUS P65UP5 - AUX LOOP command does not raise AUX IRQ */
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
			DMI_MATCH(DMI_BOARD_NAME, "P/I-P65UP5"),
			DMI_MATCH(DMI_BOARD_VERSION, "REV 2.X"),
		},
	},
	{
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
			DMI_MATCH(DMI_PRODUCT_NAME, "X750LN"),
		},
	},
	{
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
			DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
			DMI_MATCH(DMI_PRODUCT_VERSION, "8500"),
		},
	},
	{
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
			DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
			DMI_MATCH(DMI_PRODUCT_VERSION, "DL760"),
		},
	},
	{
		/* Dell Embedded Box PC 3000 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
			DMI_MATCH(DMI_PRODUCT_NAME, "Embedded Box PC 3000"),
		},
	},
	{
		/* OQO Model 01 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
			DMI_MATCH(DMI_PRODUCT_VERSION, "00"),
		},
	},
	{
		/* ULI EV4873 - AUX LOOP does not work properly */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "ULI"),
			DMI_MATCH(DMI_PRODUCT_NAME, "EV4873"),
			DMI_MATCH(DMI_PRODUCT_VERSION, "5a"),
		},
	},
	{
		/* Microsoft Virtual Machine */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"),
			DMI_MATCH(DMI_PRODUCT_VERSION, "VS2005R2"),
		},
	},
	{
		/* Medion MAM 2070 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
			DMI_MATCH(DMI_PRODUCT_NAME, "MAM 2070"),
			DMI_MATCH(DMI_PRODUCT_VERSION, "5a"),
		},
	},
	{
		/* Medion Akoya E7225 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Medion"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Akoya E7225"),
			DMI_MATCH(DMI_PRODUCT_VERSION, "1.0"),
		},
	},
	{
		/* Blue FB5601 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "blue"),
			DMI_MATCH(DMI_PRODUCT_NAME, "FB5601"),
			DMI_MATCH(DMI_PRODUCT_VERSION, "M606"),
		},
	},
	{
		/* Gigabyte M912 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
			DMI_MATCH(DMI_PRODUCT_NAME, "M912"),
			DMI_MATCH(DMI_PRODUCT_VERSION, "01"),
		},
	},
	{
		/* Gigabyte M1022M netbook */
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co.,Ltd."),
			DMI_MATCH(DMI_BOARD_NAME, "M1022E"),
			DMI_MATCH(DMI_BOARD_VERSION, "1.02"),
		},
	},
	{
		/* Gigabyte Spring Peak - defines wrong chassis type */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Spring Peak"),
		},
	},
	{
		/* Gigabyte T1005 - defines wrong chassis type ("Other") */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
			DMI_MATCH(DMI_PRODUCT_NAME, "T1005"),
		},
	},
	{
		/* Gigabyte T1005M/P - defines wrong chassis type ("Other") */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
			DMI_MATCH(DMI_PRODUCT_NAME, "T1005M/P"),
		},
	},
	{
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
			DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv9700"),
			DMI_MATCH(DMI_PRODUCT_VERSION, "Rev 1"),
		},
	},
	{
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "PEGATRON CORPORATION"),
			DMI_MATCH(DMI_PRODUCT_NAME, "C15B"),
		},
	},
	{ }
};

/*
 * Some Fujitsu notebooks are having trouble with touchpads if
 * active multiplexing mode is activated. Luckily they don't have
 * external PS/2 ports so we can safely disable it.
 * ... apparently some Toshibas don't like MUX mode either and
 * die horrible death on reboot.
 */
static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
	{
		/* Fujitsu Lifebook P7010/P7010D */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
			DMI_MATCH(DMI_PRODUCT_NAME, "P7010"),
		},
	},
	{
		/* Fujitsu Lifebook P7010 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
			DMI_MATCH(DMI_PRODUCT_NAME, "0000000000"),
		},
	},
	{
		/* Fujitsu Lifebook P5020D */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
			DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P Series"),
		},
	},
	{
		/* Fujitsu Lifebook S2000 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
			DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S Series"),
		},
	},
	{
		/* Fujitsu Lifebook S6230 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
			DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S6230"),
		},
	},
	{
		/* Fujitsu Lifebook U745 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U745"),
		},
	},
	{
		/* Fujitsu T70H */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
			DMI_MATCH(DMI_PRODUCT_NAME, "FMVLT70H"),
		},
	},
	{
		/* Fujitsu-Siemens Lifebook T3010 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK T3010"),
		},
	},
	{
		/* Fujitsu-Siemens Lifebook E4010 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E4010"),
		},
	},
	{
		/* Fujitsu-Siemens Amilo Pro 2010 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
			DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro V2010"),
		},
	},
	{
		/* Fujitsu-Siemens Amilo Pro 2030 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
			DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"),
		},
	},
	{
		/*
		 * No data is coming from the touchscreen unless KBC
		 * is in legacy mode.
		 */
		/* Panasonic CF-29 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
			DMI_MATCH(DMI_PRODUCT_NAME, "CF-29"),
		},
	},
	{
		/*
		 * HP Pavilion DV4017EA -
		 * errors on MUX ports are reported without raising AUXDATA
		 * causing "spurious NAK" messages.
		 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EA032EA#ABF)"),
		},
	},
	{
		/*
		 * HP Pavilion ZT1000 -
		 * like DV4017EA does not raise AUXERR for errors on MUX ports.
		 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
			DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion Notebook PC"),
			DMI_MATCH(DMI_PRODUCT_VERSION, "HP Pavilion Notebook ZT1000"),
		},
	},
	{
		/*
		 * HP Pavilion DV4270ca -
		 * like DV4017EA does not raise AUXERR for errors on MUX ports.
		 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EH476UA#ABL)"),
		},
	},
	{
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P10"),
		},
	},
	{
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
			DMI_MATCH(DMI_PRODUCT_NAME, "EQUIUM A110"),
		},
	},
	{
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
			DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE C850D"),
		},
	},
	{
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "ALIENWARE"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Sentia"),
		},
	},
	{
		/* Sharp Actius MM20 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "SHARP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "PC-MM20 Series"),
		},
	},
	{
		/* Sony Vaio FS-115b */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
			DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FS115B"),
		},
	},
	{
		/*
		 * Sony Vaio FZ-240E -
		 * reset and GET ID commands issued via KBD port are
		 * sometimes being delivered to AUX3.
		 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
			DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ240E"),
		},
	},
	{
		/*
		 * Most (all?) VAIOs do not have external PS/2 ports nor
		 * they implement active multiplexing properly, and
		 * MUX discovery usually messes up keyboard/touchpad.
		 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
			DMI_MATCH(DMI_BOARD_NAME, "VAIO"),
		},
	},
	{
		/* Amoi M636/A737 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Amoi Electronics CO.,LTD."),
			DMI_MATCH(DMI_PRODUCT_NAME, "M636/A737 platform"),
		},
	},
	{
		/* Lenovo 3000 n100 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "076804U"),
		},
	},
	{
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
		},
	},
	{
		/* Acer Aspire 5710 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5710"),
		},
	},
	{
		/* Acer Aspire 7738 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7738"),
		},
	},
	{
		/* Gericom Bellagio */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Gericom"),
			DMI_MATCH(DMI_PRODUCT_NAME, "N34AS6"),
		},
	},
	{
		/* IBM 2656 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
			DMI_MATCH(DMI_PRODUCT_NAME, "2656"),
		},
	},
	{
		/* Dell XPS M1530 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
			DMI_MATCH(DMI_PRODUCT_NAME, "XPS M1530"),
		},
	},
	{
		/* Compal HEL80I */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "COMPAL"),
			DMI_MATCH(DMI_PRODUCT_NAME, "HEL80I"),
		},
	},
	{
		/* Dell Vostro 1510 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
			DMI_MATCH(DMI_PRODUCT_NAME, "Vostro1510"),
		},
	},
	{
		/* Acer Aspire 5536 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5536"),
			DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
		},
	},
	{
		/* Dell Vostro V13 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
			DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
		},
	},
	{
		/* Newer HP Pavilion dv4 models */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
			DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
		},
	},
	{
		/* Asus X450LCP */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
			DMI_MATCH(DMI_PRODUCT_NAME, "X450LCP"),
		},
	},
	{
		/* Avatar AVIU-145A6 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Intel"),
			DMI_MATCH(DMI_PRODUCT_NAME, "IC4I"),
		},
	},
	{
		/* TUXEDO BU1406 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
			DMI_MATCH(DMI_PRODUCT_NAME, "N24_25BU"),
		},
	},
	{
		/* Lenovo LaVie Z */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo LaVie Z"),
		},
	},
	{ }
};

static const struct dmi_system_id i8042_dmi_forcemux_table[] __initconst = {
	{
		/*
		 * Sony Vaio VGN-CS series require MUX or the touch sensor
		 * buttons will disturb touchpad operation
		 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
			DMI_MATCH(DMI_PRODUCT_NAME, "VGN-CS"),
		},
	},
	{ }
};

/*
 * On some Asus laptops, just running self tests cause problems.
 */
static const struct dmi_system_id i8042_dmi_noselftest_table[] = {
	{
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
			DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
		},
	},
	{ }
};
static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = {
	{
		/* MSI Wind U-100 */
		.matches = {
			DMI_MATCH(DMI_BOARD_NAME, "U-100"),
			DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
		},
	},
	{
		/* LG Electronics X110 */
		.matches = {
			DMI_MATCH(DMI_BOARD_NAME, "X110"),
			DMI_MATCH(DMI_BOARD_VENDOR, "LG Electronics Inc."),
		},
	},
	{
		/* Acer Aspire One 150 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
		},
	},
	{
		/* Advent 4211 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "DIXONSXP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Advent 4211"),
		},
	},
	{
		/* Medion Akoya Mini E1210 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
			DMI_MATCH(DMI_PRODUCT_NAME, "E1210"),
		},
	},
	{
		/* Medion Akoya E1222 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
			DMI_MATCH(DMI_PRODUCT_NAME, "E122X"),
		},
	},
	{
		/* Mivvy M310 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "VIOOO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "N10"),
		},
	},
	{
		/* Dell Vostro 1320 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
			DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1320"),
		},
	},
	{
		/* Dell Vostro 1520 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
			DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1520"),
		},
	},
	{
		/* Dell Vostro 1720 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
			DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1720"),
		},
	},
	{
		/* Lenovo Ideapad U455 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "20046"),
		},
	},
	{
		/* Lenovo ThinkPad L460 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L460"),
		},
	},
	{
		/* Clevo P650RS, 650RP6, Sager NP8152-S, and others */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
			DMI_MATCH(DMI_PRODUCT_NAME, "P65xRP"),
		},
	},
	{ }
};

#ifdef CONFIG_PNP
static const struct dmi_system_id __initconst i8042_dmi_nopnp_table[] = {
	{
		/* Intel MBO Desktop D845PESV */
		.matches = {
			DMI_MATCH(DMI_BOARD_NAME, "D845PESV"),
			DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
		},
	},
	{
		/*
		 * Intel NUC D54250WYK - does not have i8042 controller but
		 * declares PS/2 devices in DSDT.
		 */
		.matches = {
			DMI_MATCH(DMI_BOARD_NAME, "D54250WYK"),
			DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
		},
	},
	{
		/* MSI Wind U-100 */
		.matches = {
			DMI_MATCH(DMI_BOARD_NAME, "U-100"),
			DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
		},
	},
	{ }
};

static const struct dmi_system_id __initconst i8042_dmi_laptop_table[] = {
	{
		.matches = {
			DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
		},
	},
	{
		.matches = {
			DMI_MATCH(DMI_CHASSIS_TYPE, "9"), /* Laptop */
		},
	},
	{
		.matches = {
			DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
		},
	},
	{
		.matches = {
			DMI_MATCH(DMI_CHASSIS_TYPE, "14"), /* Sub-Notebook */
		},
	},
	{ }
};
#endif

static const struct dmi_system_id __initconst i8042_dmi_notimeout_table[] = {
	{
		/* Dell Vostro V13 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
			DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
		},
	},
	{
		/* Newer HP Pavilion dv4 models */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
			DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
		},
	},
	{
		/* Fujitsu A544 laptop */
		/* https://bugzilla.redhat.com/show_bug.cgi?id=1111138 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK A544"),
		},
	},
	{
		/* Fujitsu AH544 laptop */
		/* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK AH544"),
		},
	},
	{
		/* Fujitsu U574 laptop */
		/* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U574"),
		},
	},
	{
		/* Fujitsu UH554 laptop */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK UH544"),
		},
	},
	{ }
};

/*
 * Some Wistron based laptops need us to explicitly enable the 'Dritek
 * keyboard extension' to make their extra keys start generating scancodes.
 * Originally, this was just confined to older laptops, but a few Acer laptops
 * have turned up in 2007 that also need this again.
 */
static const struct dmi_system_id __initconst i8042_dmi_dritek_table[] = {
	{
		/* Acer Aspire 5100 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
		},
	},
	{
		/* Acer Aspire 5610 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
		},
	},
	{
		/* Acer Aspire 5630 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
		},
	},
	{
		/* Acer Aspire 5650 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
		},
	},
	{
		/* Acer Aspire 5680 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
		},
	},
	{
		/* Acer Aspire 5720 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5720"),
		},
	},
	{
		/* Acer Aspire 9110 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
		},
	},
	{
		/* Acer TravelMate 660 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 660"),
		},
	},
	{
		/* Acer TravelMate 2490 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
		},
	},
	{
		/* Acer TravelMate 4280 */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4280"),
		},
	},
	{ }
};

/*
 * Some laptops need keyboard reset before probing for the trackpad to get
 * it detected, initialised & finally work.
 */
static const struct dmi_system_id __initconst i8042_dmi_kbdreset_table[] = {
	{
		/* Gigabyte P35 v2 - Elantech touchpad */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
			DMI_MATCH(DMI_PRODUCT_NAME, "P35V2"),
		},
	},
		{
		/* Aorus branded Gigabyte X3 Plus - Elantech touchpad */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
			DMI_MATCH(DMI_PRODUCT_NAME, "X3"),
		},
	},
	{
		/* Gigabyte P34 - Elantech touchpad */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
			DMI_MATCH(DMI_PRODUCT_NAME, "P34"),
		},
	},
	{
		/* Gigabyte P57 - Elantech touchpad */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
			DMI_MATCH(DMI_PRODUCT_NAME, "P57"),
		},
	},
	{
		/* Schenker XMG C504 - Elantech touchpad */
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "XMG"),
			DMI_MATCH(DMI_PRODUCT_NAME, "C504"),
		},
	},
	{ }
};

#endif /* CONFIG_X86 */

#ifdef CONFIG_PNP
#include <linux/pnp.h>

static bool i8042_pnp_kbd_registered;
static unsigned int i8042_pnp_kbd_devices;
static bool i8042_pnp_aux_registered;
static unsigned int i8042_pnp_aux_devices;

static int i8042_pnp_command_reg;
static int i8042_pnp_data_reg;
static int i8042_pnp_kbd_irq;
static int i8042_pnp_aux_irq;

static char i8042_pnp_kbd_name[32];
static char i8042_pnp_aux_name[32];

static void i8042_pnp_id_to_string(struct pnp_id *id, char *dst, int dst_size)
{
	strlcpy(dst, "PNP:", dst_size);

	while (id) {
		strlcat(dst, " ", dst_size);
		strlcat(dst, id->id, dst_size);
		id = id->next;
	}
}

static int i8042_pnp_kbd_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
{
	if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
		i8042_pnp_data_reg = pnp_port_start(dev,0);

	if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
		i8042_pnp_command_reg = pnp_port_start(dev, 1);

	if (pnp_irq_valid(dev,0))
		i8042_pnp_kbd_irq = pnp_irq(dev, 0);

	strlcpy(i8042_pnp_kbd_name, did->id, sizeof(i8042_pnp_kbd_name));
	if (strlen(pnp_dev_name(dev))) {
		strlcat(i8042_pnp_kbd_name, ":", sizeof(i8042_pnp_kbd_name));
		strlcat(i8042_pnp_kbd_name, pnp_dev_name(dev), sizeof(i8042_pnp_kbd_name));
	}
	i8042_pnp_id_to_string(dev->id, i8042_kbd_firmware_id,
			       sizeof(i8042_kbd_firmware_id));

	/* Keyboard ports are always supposed to be wakeup-enabled */
	device_set_wakeup_enable(&dev->dev, true);

	i8042_pnp_kbd_devices++;
	return 0;
}

static int i8042_pnp_aux_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
{
	if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
		i8042_pnp_data_reg = pnp_port_start(dev,0);

	if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
		i8042_pnp_command_reg = pnp_port_start(dev, 1);

	if (pnp_irq_valid(dev, 0))
		i8042_pnp_aux_irq = pnp_irq(dev, 0);

	strlcpy(i8042_pnp_aux_name, did->id, sizeof(i8042_pnp_aux_name));
	if (strlen(pnp_dev_name(dev))) {
		strlcat(i8042_pnp_aux_name, ":", sizeof(i8042_pnp_aux_name));
		strlcat(i8042_pnp_aux_name, pnp_dev_name(dev), sizeof(i8042_pnp_aux_name));
	}
	i8042_pnp_id_to_string(dev->id, i8042_aux_firmware_id,
			       sizeof(i8042_aux_firmware_id));

	i8042_pnp_aux_devices++;
	return 0;
}

static const struct pnp_device_id pnp_kbd_devids[] = {
	{ .id = "PNP0300", .driver_data = 0 },
	{ .id = "PNP0301", .driver_data = 0 },
	{ .id = "PNP0302", .driver_data = 0 },
	{ .id = "PNP0303", .driver_data = 0 },
	{ .id = "PNP0304", .driver_data = 0 },
	{ .id = "PNP0305", .driver_data = 0 },
	{ .id = "PNP0306", .driver_data = 0 },
	{ .id = "PNP0309", .driver_data = 0 },
	{ .id = "PNP030a", .driver_data = 0 },
	{ .id = "PNP030b", .driver_data = 0 },
	{ .id = "PNP0320", .driver_data = 0 },
	{ .id = "PNP0343", .driver_data = 0 },
	{ .id = "PNP0344", .driver_data = 0 },
	{ .id = "PNP0345", .driver_data = 0 },
	{ .id = "CPQA0D7", .driver_data = 0 },
	{ .id = "", },
};
MODULE_DEVICE_TABLE(pnp, pnp_kbd_devids);

static struct pnp_driver i8042_pnp_kbd_driver = {
	.name           = "i8042 kbd",
	.id_table       = pnp_kbd_devids,
	.probe          = i8042_pnp_kbd_probe,
	.driver         = {
		.probe_type = PROBE_FORCE_SYNCHRONOUS,
		.suppress_bind_attrs = true,
	},
};

static const struct pnp_device_id pnp_aux_devids[] = {
	{ .id = "AUI0200", .driver_data = 0 },
	{ .id = "FJC6000", .driver_data = 0 },
	{ .id = "FJC6001", .driver_data = 0 },
	{ .id = "PNP0f03", .driver_data = 0 },
	{ .id = "PNP0f0b", .driver_data = 0 },
	{ .id = "PNP0f0e", .driver_data = 0 },
	{ .id = "PNP0f12", .driver_data = 0 },
	{ .id = "PNP0f13", .driver_data = 0 },
	{ .id = "PNP0f19", .driver_data = 0 },
	{ .id = "PNP0f1c", .driver_data = 0 },
	{ .id = "SYN0801", .driver_data = 0 },
	{ .id = "", },
};
MODULE_DEVICE_TABLE(pnp, pnp_aux_devids);

static struct pnp_driver i8042_pnp_aux_driver = {
	.name           = "i8042 aux",
	.id_table       = pnp_aux_devids,
	.probe          = i8042_pnp_aux_probe,
	.driver         = {
		.probe_type = PROBE_FORCE_SYNCHRONOUS,
		.suppress_bind_attrs = true,
	},
};

static void i8042_pnp_exit(void)
{
	if (i8042_pnp_kbd_registered) {
		i8042_pnp_kbd_registered = false;
		pnp_unregister_driver(&i8042_pnp_kbd_driver);
	}

	if (i8042_pnp_aux_registered) {
		i8042_pnp_aux_registered = false;
		pnp_unregister_driver(&i8042_pnp_aux_driver);
	}
}

static int __init i8042_pnp_init(void)
{
	char kbd_irq_str[4] = { 0 }, aux_irq_str[4] = { 0 };
	bool pnp_data_busted = false;
	int err;

#ifdef CONFIG_X86
	if (dmi_check_system(i8042_dmi_nopnp_table))
		i8042_nopnp = true;
#endif

	if (i8042_nopnp) {
		pr_info("PNP detection disabled\n");
		return 0;
	}

	err = pnp_register_driver(&i8042_pnp_kbd_driver);
	if (!err)
		i8042_pnp_kbd_registered = true;

	err = pnp_register_driver(&i8042_pnp_aux_driver);
	if (!err)
		i8042_pnp_aux_registered = true;

	if (!i8042_pnp_kbd_devices && !i8042_pnp_aux_devices) {
		i8042_pnp_exit();
#if defined(__ia64__)
		return -ENODEV;
#else
		pr_info("PNP: No PS/2 controller found.\n");
		if (x86_platform.legacy.i8042 !=
				X86_LEGACY_I8042_EXPECTED_PRESENT)
			return -ENODEV;
		pr_info("Probing ports directly.\n");
		return 0;
#endif
	}

	if (i8042_pnp_kbd_devices)
		snprintf(kbd_irq_str, sizeof(kbd_irq_str),
			"%d", i8042_pnp_kbd_irq);
	if (i8042_pnp_aux_devices)
		snprintf(aux_irq_str, sizeof(aux_irq_str),
			"%d", i8042_pnp_aux_irq);

	pr_info("PNP: PS/2 Controller [%s%s%s] at %#x,%#x irq %s%s%s\n",
		i8042_pnp_kbd_name, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
		i8042_pnp_aux_name,
		i8042_pnp_data_reg, i8042_pnp_command_reg,
		kbd_irq_str, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
		aux_irq_str);

#if defined(__ia64__)
	if (!i8042_pnp_kbd_devices)
		i8042_nokbd = true;
	if (!i8042_pnp_aux_devices)
		i8042_noaux = true;
#endif

	if (((i8042_pnp_data_reg & ~0xf) == (i8042_data_reg & ~0xf) &&
	      i8042_pnp_data_reg != i8042_data_reg) ||
	    !i8042_pnp_data_reg) {
		pr_warn("PNP: PS/2 controller has invalid data port %#x; using default %#x\n",
			i8042_pnp_data_reg, i8042_data_reg);
		i8042_pnp_data_reg = i8042_data_reg;
		pnp_data_busted = true;
	}

	if (((i8042_pnp_command_reg & ~0xf) == (i8042_command_reg & ~0xf) &&
	      i8042_pnp_command_reg != i8042_command_reg) ||
	    !i8042_pnp_command_reg) {
		pr_warn("PNP: PS/2 controller has invalid command port %#x; using default %#x\n",
			i8042_pnp_command_reg, i8042_command_reg);
		i8042_pnp_command_reg = i8042_command_reg;
		pnp_data_busted = true;
	}

	if (!i8042_nokbd && !i8042_pnp_kbd_irq) {
		pr_warn("PNP: PS/2 controller doesn't have KBD irq; using default %d\n",
			i8042_kbd_irq);
		i8042_pnp_kbd_irq = i8042_kbd_irq;
		pnp_data_busted = true;
	}

	if (!i8042_noaux && !i8042_pnp_aux_irq) {
		if (!pnp_data_busted && i8042_pnp_kbd_irq) {
			pr_warn("PNP: PS/2 appears to have AUX port disabled, "
				"if this is incorrect please boot with i8042.nopnp\n");
			i8042_noaux = true;
		} else {
			pr_warn("PNP: PS/2 controller doesn't have AUX irq; using default %d\n",
				i8042_aux_irq);
			i8042_pnp_aux_irq = i8042_aux_irq;
		}
	}

	i8042_data_reg = i8042_pnp_data_reg;
	i8042_command_reg = i8042_pnp_command_reg;
	i8042_kbd_irq = i8042_pnp_kbd_irq;
	i8042_aux_irq = i8042_pnp_aux_irq;

#ifdef CONFIG_X86
	i8042_bypass_aux_irq_test = !pnp_data_busted &&
				    dmi_check_system(i8042_dmi_laptop_table);
#endif

	return 0;
}

#else  /* !CONFIG_PNP */
static inline int i8042_pnp_init(void) { return 0; }
static inline void i8042_pnp_exit(void) { }
#endif /* CONFIG_PNP */

static int __init i8042_platform_init(void)
{
	int retval;

#ifdef CONFIG_X86
	u8 a20_on = 0xdf;
	/* Just return if platform does not have i8042 controller */
	if (x86_platform.legacy.i8042 == X86_LEGACY_I8042_PLATFORM_ABSENT)
		return -ENODEV;
#endif

/*
 * On ix86 platforms touching the i8042 data register region can do really
 * bad things. Because of this the region is always reserved on ix86 boxes.
 *
 *	if (!request_region(I8042_DATA_REG, 16, "i8042"))
 *		return -EBUSY;
 */

	i8042_kbd_irq = I8042_MAP_IRQ(1);
	i8042_aux_irq = I8042_MAP_IRQ(12);

	retval = i8042_pnp_init();
	if (retval)
		return retval;

#if defined(__ia64__)
        i8042_reset = I8042_RESET_ALWAYS;
#endif

#ifdef CONFIG_X86
	/* Honor module parameter when value is not default */
	if (i8042_reset == I8042_RESET_DEFAULT) {
		if (dmi_check_system(i8042_dmi_reset_table))
			i8042_reset = I8042_RESET_ALWAYS;

		if (dmi_check_system(i8042_dmi_noselftest_table))
			i8042_reset = I8042_RESET_NEVER;
	}

	if (dmi_check_system(i8042_dmi_noloop_table))
		i8042_noloop = true;

	if (dmi_check_system(i8042_dmi_nomux_table))
		i8042_nomux = true;

	if (dmi_check_system(i8042_dmi_forcemux_table))
		i8042_nomux = false;

	if (dmi_check_system(i8042_dmi_notimeout_table))
		i8042_notimeout = true;

	if (dmi_check_system(i8042_dmi_dritek_table))
		i8042_dritek = true;

	if (dmi_check_system(i8042_dmi_kbdreset_table))
		i8042_kbdreset = true;

	/*
	 * A20 was already enabled during early kernel init. But some buggy
	 * BIOSes (in MSI Laptops) require A20 to be enabled using 8042 to
	 * resume from S3. So we do it here and hope that nothing breaks.
	 */
	i8042_command(&a20_on, 0x10d1);
	i8042_command(NULL, 0x00ff);	/* Null command for SMM firmware */
#endif /* CONFIG_X86 */

	return retval;
}

static inline void i8042_platform_exit(void)
{
	i8042_pnp_exit();
}

#endif /* _I8042_X86IA64IO_H */