aboutsummaryrefslogtreecommitdiff
path: root/drivers/input/misc/wistron_btns.c
blob: 56536f4b9572c07757232f63430768cc8df9d6fd (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
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
/*
 * Wistron laptop button driver
 * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
 * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
 * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
 *
 * You can redistribute and/or modify this program under the terms of the
 * GNU General Public License version 2 as published by the Free Software
 * Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
 * Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place Suite 330, Boston, MA 02111-1307, USA.
 */
#include <linux/io.h>
#include <linux/dmi.h>
#include <linux/init.h>
#include <linux/input-polldev.h>
#include <linux/input/sparse-keymap.h>
#include <linux/interrupt.h>
#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/mc146818rtc.h>
#include <linux/module.h>
#include <linux/preempt.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/platform_device.h>
#include <linux/leds.h>

/* How often we poll keys - msecs */
#define POLL_INTERVAL_DEFAULT	500 /* when idle */
#define POLL_INTERVAL_BURST	100 /* when a key was recently pressed */

/* BIOS subsystem IDs */
#define WIFI		0x35
#define BLUETOOTH	0x34
#define MAIL_LED	0x31

MODULE_AUTHOR("Miloslav Trmac <mitr@volny.cz>");
MODULE_DESCRIPTION("Wistron laptop button driver");
MODULE_LICENSE("GPL v2");
MODULE_VERSION("0.3");

static bool force; /* = 0; */
module_param(force, bool, 0);
MODULE_PARM_DESC(force, "Load even if computer is not in database");

static char *keymap_name; /* = NULL; */
module_param_named(keymap, keymap_name, charp, 0);
MODULE_PARM_DESC(keymap, "Keymap name, if it can't be autodetected [generic, 1557/MS2141]");

static struct platform_device *wistron_device;

 /* BIOS interface implementation */

static void __iomem *bios_entry_point; /* BIOS routine entry point */
static void __iomem *bios_code_map_base;
static void __iomem *bios_data_map_base;

static u8 cmos_address;

struct regs {
	u32 eax, ebx, ecx;
};

static void call_bios(struct regs *regs)
{
	unsigned long flags;

	preempt_disable();
	local_irq_save(flags);
	asm volatile ("pushl %%ebp;"
		      "movl %7, %%ebp;"
		      "call *%6;"
		      "popl %%ebp"
		      : "=a" (regs->eax), "=b" (regs->ebx), "=c" (regs->ecx)
		      : "0" (regs->eax), "1" (regs->ebx), "2" (regs->ecx),
			"m" (bios_entry_point), "m" (bios_data_map_base)
		      : "edx", "edi", "esi", "memory");
	local_irq_restore(flags);
	preempt_enable();
}

static ssize_t __init locate_wistron_bios(void __iomem *base)
{
	static unsigned char __initdata signature[] =
		{ 0x42, 0x21, 0x55, 0x30 };
	ssize_t offset;

	for (offset = 0; offset < 0x10000; offset += 0x10) {
		if (check_signature(base + offset, signature,
				    sizeof(signature)) != 0)
			return offset;
	}
	return -1;
}

static int __init map_bios(void)
{
	void __iomem *base;
	ssize_t offset;
	u32 entry_point;

	base = ioremap(0xF0000, 0x10000); /* Can't fail */
	offset = locate_wistron_bios(base);
	if (offset < 0) {
		printk(KERN_ERR "wistron_btns: BIOS entry point not found\n");
		iounmap(base);
		return -ENODEV;
	}

	entry_point = readl(base + offset + 5);
	printk(KERN_DEBUG
		"wistron_btns: BIOS signature found at %p, entry point %08X\n",
		base + offset, entry_point);

	if (entry_point >= 0xF0000) {
		bios_code_map_base = base;
		bios_entry_point = bios_code_map_base + (entry_point & 0xFFFF);
	} else {
		iounmap(base);
		bios_code_map_base = ioremap(entry_point & ~0x3FFF, 0x4000);
		if (bios_code_map_base == NULL) {
			printk(KERN_ERR
				"wistron_btns: Can't map BIOS code at %08X\n",
				entry_point & ~0x3FFF);
			goto err;
		}
		bios_entry_point = bios_code_map_base + (entry_point & 0x3FFF);
	}
	/* The Windows driver maps 0x10000 bytes, we keep only one page... */
	bios_data_map_base = ioremap(0x400, 0xc00);
	if (bios_data_map_base == NULL) {
		printk(KERN_ERR "wistron_btns: Can't map BIOS data\n");
		goto err_code;
	}
	return 0;

err_code:
	iounmap(bios_code_map_base);
err:
	return -ENOMEM;
}

static inline void unmap_bios(void)
{
	iounmap(bios_code_map_base);
	iounmap(bios_data_map_base);
}

 /* BIOS calls */

static u16 bios_pop_queue(void)
{
	struct regs regs;

	memset(&regs, 0, sizeof (regs));
	regs.eax = 0x9610;
	regs.ebx = 0x061C;
	regs.ecx = 0x0000;
	call_bios(&regs);

	return regs.eax;
}

static void bios_attach(void)
{
	struct regs regs;

	memset(&regs, 0, sizeof (regs));
	regs.eax = 0x9610;
	regs.ebx = 0x012E;
	call_bios(&regs);
}

static void bios_detach(void)
{
	struct regs regs;

	memset(&regs, 0, sizeof (regs));
	regs.eax = 0x9610;
	regs.ebx = 0x002E;
	call_bios(&regs);
}

static u8 bios_get_cmos_address(void)
{
	struct regs regs;

	memset(&regs, 0, sizeof (regs));
	regs.eax = 0x9610;
	regs.ebx = 0x051C;
	call_bios(&regs);

	return regs.ecx;
}

static u16 bios_get_default_setting(u8 subsys)
{
	struct regs regs;

	memset(&regs, 0, sizeof (regs));
	regs.eax = 0x9610;
	regs.ebx = 0x0200 | subsys;
	call_bios(&regs);

	return regs.eax;
}

static void bios_set_state(u8 subsys, int enable)
{
	struct regs regs;

	memset(&regs, 0, sizeof (regs));
	regs.eax = 0x9610;
	regs.ebx = (enable ? 0x0100 : 0x0000) | subsys;
	call_bios(&regs);
}

/* Hardware database */

#define KE_WIFI		(KE_LAST + 1)
#define KE_BLUETOOTH	(KE_LAST + 2)

#define FE_MAIL_LED 0x01
#define FE_WIFI_LED 0x02
#define FE_UNTESTED 0x80

static struct key_entry *keymap; /* = NULL; Current key map */
static bool have_wifi;
static bool have_bluetooth;
static int leds_present;	/* bitmask of leds present */

static int __init dmi_matched(const struct dmi_system_id *dmi)
{
	const struct key_entry *key;

	keymap = dmi->driver_data;
	for (key = keymap; key->type != KE_END; key++) {
		if (key->type == KE_WIFI)
			have_wifi = true;
		else if (key->type == KE_BLUETOOTH)
			have_bluetooth = true;
	}
	leds_present = key->code & (FE_MAIL_LED | FE_WIFI_LED);

	return 1;
}

static struct key_entry keymap_empty[] __initdata = {
	{ KE_END, 0 }
};

static struct key_entry keymap_fs_amilo_pro_v2000[] __initdata = {
	{ KE_KEY,  0x01, {KEY_HELP} },
	{ KE_KEY,  0x11, {KEY_PROG1} },
	{ KE_KEY,  0x12, {KEY_PROG2} },
	{ KE_WIFI, 0x30 },
	{ KE_KEY,  0x31, {KEY_MAIL} },
	{ KE_KEY,  0x36, {KEY_WWW} },
	{ KE_END,  0 }
};

static struct key_entry keymap_fs_amilo_pro_v3505[] __initdata = {
	{ KE_KEY,       0x01, {KEY_HELP} },          /* Fn+F1 */
	{ KE_KEY,       0x06, {KEY_DISPLAYTOGGLE} }, /* Fn+F4 */
	{ KE_BLUETOOTH, 0x30 },                      /* Fn+F10 */
	{ KE_KEY,       0x31, {KEY_MAIL} },          /* mail button */
	{ KE_KEY,       0x36, {KEY_WWW} },           /* www button */
	{ KE_WIFI,      0x78 },                      /* satellite dish button */
	{ KE_END,       0 }
};

static struct key_entry keymap_fujitsu_n3510[] __initdata = {
	{ KE_KEY, 0x11, {KEY_PROG1} },
	{ KE_KEY, 0x12, {KEY_PROG2} },
	{ KE_KEY, 0x36, {KEY_WWW} },
	{ KE_KEY, 0x31, {KEY_MAIL} },
	{ KE_KEY, 0x71, {KEY_STOPCD} },
	{ KE_KEY, 0x72, {KEY_PLAYPAUSE} },
	{ KE_KEY, 0x74, {KEY_REWIND} },
	{ KE_KEY, 0x78, {KEY_FORWARD} },
	{ KE_END, 0 }
};

static struct key_entry keymap_wistron_ms2111[] __initdata = {
	{ KE_KEY,  0x11, {KEY_PROG1} },
	{ KE_KEY,  0x12, {KEY_PROG2} },
	{ KE_KEY,  0x13, {KEY_PROG3} },
	{ KE_KEY,  0x31, {KEY_MAIL} },
	{ KE_KEY,  0x36, {KEY_WWW} },
	{ KE_END, FE_MAIL_LED }
};

static struct key_entry keymap_wistron_md40100[] __initdata = {
	{ KE_KEY, 0x01, {KEY_HELP} },
	{ KE_KEY, 0x02, {KEY_CONFIG} },
	{ KE_KEY, 0x31, {KEY_MAIL} },
	{ KE_KEY, 0x36, {KEY_WWW} },
	{ KE_KEY, 0x37, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
	{ KE_END, FE_MAIL_LED | FE_WIFI_LED | FE_UNTESTED }
};

static struct key_entry keymap_wistron_ms2141[] __initdata = {
	{ KE_KEY,  0x11, {KEY_PROG1} },
	{ KE_KEY,  0x12, {KEY_PROG2} },
	{ KE_WIFI, 0x30 },
	{ KE_KEY,  0x22, {KEY_REWIND} },
	{ KE_KEY,  0x23, {KEY_FORWARD} },
	{ KE_KEY,  0x24, {KEY_PLAYPAUSE} },
	{ KE_KEY,  0x25, {KEY_STOPCD} },
	{ KE_KEY,  0x31, {KEY_MAIL} },
	{ KE_KEY,  0x36, {KEY_WWW} },
	{ KE_END,  0 }
};

static struct key_entry keymap_acer_aspire_1500[] __initdata = {
	{ KE_KEY, 0x01, {KEY_HELP} },
	{ KE_KEY, 0x03, {KEY_POWER} },
	{ KE_KEY, 0x11, {KEY_PROG1} },
	{ KE_KEY, 0x12, {KEY_PROG2} },
	{ KE_WIFI, 0x30 },
	{ KE_KEY, 0x31, {KEY_MAIL} },
	{ KE_KEY, 0x36, {KEY_WWW} },
	{ KE_KEY, 0x49, {KEY_CONFIG} },
	{ KE_BLUETOOTH, 0x44 },
	{ KE_END, FE_UNTESTED }
};

static struct key_entry keymap_acer_aspire_1600[] __initdata = {
	{ KE_KEY, 0x01, {KEY_HELP} },
	{ KE_KEY, 0x03, {KEY_POWER} },
	{ KE_KEY, 0x08, {KEY_MUTE} },
	{ KE_KEY, 0x11, {KEY_PROG1} },
	{ KE_KEY, 0x12, {KEY_PROG2} },
	{ KE_KEY, 0x13, {KEY_PROG3} },
	{ KE_KEY, 0x31, {KEY_MAIL} },
	{ KE_KEY, 0x36, {KEY_WWW} },
	{ KE_KEY, 0x49, {KEY_CONFIG} },
	{ KE_WIFI, 0x30 },
	{ KE_BLUETOOTH, 0x44 },
	{ KE_END, FE_MAIL_LED | FE_UNTESTED }
};

/* 3020 has been tested */
static struct key_entry keymap_acer_aspire_5020[] __initdata = {
	{ KE_KEY, 0x01, {KEY_HELP} },
	{ KE_KEY, 0x03, {KEY_POWER} },
	{ KE_KEY, 0x05, {KEY_SWITCHVIDEOMODE} }, /* Display selection */
	{ KE_KEY, 0x11, {KEY_PROG1} },
	{ KE_KEY, 0x12, {KEY_PROG2} },
	{ KE_KEY, 0x31, {KEY_MAIL} },
	{ KE_KEY, 0x36, {KEY_WWW} },
	{ KE_KEY, 0x6a, {KEY_CONFIG} },
	{ KE_WIFI, 0x30 },
	{ KE_BLUETOOTH, 0x44 },
	{ KE_END, FE_MAIL_LED | FE_UNTESTED }
};

static struct key_entry keymap_acer_travelmate_2410[] __initdata = {
	{ KE_KEY, 0x01, {KEY_HELP} },
	{ KE_KEY, 0x6d, {KEY_POWER} },
	{ KE_KEY, 0x11, {KEY_PROG1} },
	{ KE_KEY, 0x12, {KEY_PROG2} },
	{ KE_KEY, 0x31, {KEY_MAIL} },
	{ KE_KEY, 0x36, {KEY_WWW} },
	{ KE_KEY, 0x6a, {KEY_CONFIG} },
	{ KE_WIFI, 0x30 },
	{ KE_BLUETOOTH, 0x44 },
	{ KE_END, FE_MAIL_LED | FE_UNTESTED }
};

static struct key_entry keymap_acer_travelmate_110[] __initdata = {
	{ KE_KEY, 0x01, {KEY_HELP} },
	{ KE_KEY, 0x02, {KEY_CONFIG} },
	{ KE_KEY, 0x03, {KEY_POWER} },
	{ KE_KEY, 0x08, {KEY_MUTE} },
	{ KE_KEY, 0x11, {KEY_PROG1} },
	{ KE_KEY, 0x12, {KEY_PROG2} },
	{ KE_KEY, 0x20, {KEY_VOLUMEUP} },
	{ KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
	{ KE_KEY, 0x31, {KEY_MAIL} },
	{ KE_KEY, 0x36, {KEY_WWW} },
	{ KE_SW, 0x4a, {.sw = {SW_LID, 1}} }, /* lid close */
	{ KE_SW, 0x4b, {.sw = {SW_LID, 0}} }, /* lid open */
	{ KE_WIFI, 0x30 },
	{ KE_END, FE_MAIL_LED | FE_UNTESTED }
};

static struct key_entry keymap_acer_travelmate_300[] __initdata = {
	{ KE_KEY, 0x01, {KEY_HELP} },
	{ KE_KEY, 0x02, {KEY_CONFIG} },
	{ KE_KEY, 0x03, {KEY_POWER} },
	{ KE_KEY, 0x08, {KEY_MUTE} },
	{ KE_KEY, 0x11, {KEY_PROG1} },
	{ KE_KEY, 0x12, {KEY_PROG2} },
	{ KE_KEY, 0x20, {KEY_VOLUMEUP} },
	{ KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
	{ KE_KEY, 0x31, {KEY_MAIL} },
	{ KE_KEY, 0x36, {KEY_WWW} },
	{ KE_WIFI, 0x30 },
	{ KE_BLUETOOTH, 0x44 },
	{ KE_END, FE_MAIL_LED | FE_UNTESTED }
};

static struct key_entry keymap_acer_travelmate_380[] __initdata = {
	{ KE_KEY, 0x01, {KEY_HELP} },
	{ KE_KEY, 0x02, {KEY_CONFIG} },
	{ KE_KEY, 0x03, {KEY_POWER} }, /* not 370 */
	{ KE_KEY, 0x11, {KEY_PROG1} },
	{ KE_KEY, 0x12, {KEY_PROG2} },
	{ KE_KEY, 0x13, {KEY_PROG3} },
	{ KE_KEY, 0x31, {KEY_MAIL} },
	{ KE_KEY, 0x36, {KEY_WWW} },
	{ KE_WIFI, 0x30 },
	{ KE_END, FE_MAIL_LED | FE_UNTESTED }
};

/* unusual map */
static struct key_entry keymap_acer_travelmate_220[] __initdata = {
	{ KE_KEY, 0x01, {KEY_HELP} },
	{ KE_KEY, 0x02, {KEY_CONFIG} },
	{ KE_KEY, 0x11, {KEY_MAIL} },
	{ KE_KEY, 0x12, {KEY_WWW} },
	{ KE_KEY, 0x13, {KEY_PROG2} },
	{ KE_KEY, 0x31, {KEY_PROG1} },
	{ KE_END, FE_WIFI_LED | FE_UNTESTED }
};

static struct key_entry keymap_acer_travelmate_230[] __initdata = {
	{ KE_KEY, 0x01, {KEY_HELP} },
	{ KE_KEY, 0x02, {KEY_CONFIG} },
	{ KE_KEY, 0x11, {KEY_PROG1} },
	{ KE_KEY, 0x12, {KEY_PROG2} },
	{ KE_KEY, 0x31, {KEY_MAIL} },
	{ KE_KEY, 0x36, {KEY_WWW} },
	{ KE_END, FE_WIFI_LED | FE_UNTESTED }
};

static struct key_entry keymap_acer_travelmate_240[] __initdata = {
	{ KE_KEY, 0x01, {KEY_HELP} },
	{ KE_KEY, 0x02, {KEY_CONFIG} },
	{ KE_KEY, 0x03, {KEY_POWER} },
	{ KE_KEY, 0x08, {KEY_MUTE} },
	{ KE_KEY, 0x31, {KEY_MAIL} },
	{ KE_KEY, 0x36, {KEY_WWW} },
	{ KE_KEY, 0x11, {KEY_PROG1} },
	{ KE_KEY, 0x12, {KEY_PROG2} },
	{ KE_BLUETOOTH, 0x44 },
	{ KE_WIFI, 0x30 },
	{ KE_END, FE_UNTESTED }
};

static struct key_entry keymap_acer_travelmate_350[] __initdata = {
	{ KE_KEY, 0x01, {KEY_HELP} },
	{ KE_KEY, 0x02, {KEY_CONFIG} },
	{ KE_KEY, 0x11, {KEY_PROG1} },
	{ KE_KEY, 0x12, {KEY_PROG2} },
	{ KE_KEY, 0x13, {KEY_MAIL} },
	{ KE_KEY, 0x14, {KEY_PROG3} },
	{ KE_KEY, 0x15, {KEY_WWW} },
	{ KE_END, FE_MAIL_LED | FE_WIFI_LED | FE_UNTESTED }
};

static struct key_entry keymap_acer_travelmate_360[] __initdata = {
	{ KE_KEY, 0x01, {KEY_HELP} },
	{ KE_KEY, 0x02, {KEY_CONFIG} },
	{ KE_KEY, 0x11, {KEY_PROG1} },
	{ KE_KEY, 0x12, {KEY_PROG2} },
	{ KE_KEY, 0x13, {KEY_MAIL} },
	{ KE_KEY, 0x14, {KEY_PROG3} },
	{ KE_KEY, 0x15, {KEY_WWW} },
	{ KE_KEY, 0x40, {KEY_WLAN} },
	{ KE_END, FE_WIFI_LED | FE_UNTESTED } /* no mail led */
};

/* Wifi subsystem only activates the led. Therefore we need to pass
 * wifi event as a normal key, then userspace can really change the wifi state.
 * TODO we need to export led state to userspace (wifi and mail) */
static struct key_entry keymap_acer_travelmate_610[] __initdata = {
	{ KE_KEY, 0x01, {KEY_HELP} },
	{ KE_KEY, 0x02, {KEY_CONFIG} },
	{ KE_KEY, 0x11, {KEY_PROG1} },
	{ KE_KEY, 0x12, {KEY_PROG2} },
	{ KE_KEY, 0x13, {KEY_PROG3} },
	{ KE_KEY, 0x14, {KEY_MAIL} },
	{ KE_KEY, 0x15, {KEY_WWW} },
	{ KE_KEY, 0x40, {KEY_WLAN} },
	{ KE_END, FE_MAIL_LED | FE_WIFI_LED }
};

static struct key_entry keymap_acer_travelmate_630[] __initdata = {
	{ KE_KEY, 0x01, {KEY_HELP} },
	{ KE_KEY, 0x02, {KEY_CONFIG} },
	{ KE_KEY, 0x03, {KEY_POWER} },
	{ KE_KEY, 0x08, {KEY_MUTE} }, /* not 620 */
	{ KE_KEY, 0x11, {KEY_PROG1} },
	{ KE_KEY, 0x12, {KEY_PROG2} },
	{ KE_KEY, 0x13, {KEY_PROG3} },
	{ KE_KEY, 0x20, {KEY_VOLUMEUP} },
	{ KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
	{ KE_KEY, 0x31, {KEY_MAIL} },
	{ KE_KEY, 0x36, {KEY_WWW} },
	{ KE_WIFI, 0x30 },
	{ KE_END, FE_MAIL_LED | FE_UNTESTED }
};

static struct key_entry keymap_aopen_1559as[] __initdata = {
	{ KE_KEY,  0x01, {KEY_HELP} },
	{ KE_KEY,  0x06, {KEY_PROG3} },
	{ KE_KEY,  0x11, {KEY_PROG1} },
	{ KE_KEY,  0x12, {KEY_PROG2} },
	{ KE_WIFI, 0x30 },
	{ KE_KEY,  0x31, {KEY_MAIL} },
	{ KE_KEY,  0x36, {KEY_WWW} },
	{ KE_END,  0 },
};

static struct key_entry keymap_fs_amilo_d88x0[] __initdata = {
	{ KE_KEY, 0x01, {KEY_HELP} },
	{ KE_KEY, 0x08, {KEY_MUTE} },
	{ KE_KEY, 0x31, {KEY_MAIL} },
	{ KE_KEY, 0x36, {KEY_WWW} },
	{ KE_KEY, 0x11, {KEY_PROG1} },
	{ KE_KEY, 0x12, {KEY_PROG2} },
	{ KE_KEY, 0x13, {KEY_PROG3} },
	{ KE_END, FE_MAIL_LED | FE_WIFI_LED | FE_UNTESTED }
};

static struct key_entry keymap_wistron_md2900[] __initdata = {
	{ KE_KEY, 0x01, {KEY_HELP} },
	{ KE_KEY, 0x02, {KEY_CONFIG} },
	{ KE_KEY, 0x11, {KEY_PROG1} },
	{ KE_KEY, 0x12, {KEY_PROG2} },
	{ KE_KEY, 0x31, {KEY_MAIL} },
	{ KE_KEY, 0x36, {KEY_WWW} },
	{ KE_WIFI, 0x30 },
	{ KE_END, FE_MAIL_LED | FE_UNTESTED }
};

static struct key_entry keymap_wistron_md96500[] __initdata = {
	{ KE_KEY, 0x01, {KEY_HELP} },
	{ KE_KEY, 0x02, {KEY_CONFIG} },
	{ KE_KEY, 0x05, {KEY_SWITCHVIDEOMODE} }, /* Display selection */
	{ KE_KEY, 0x06, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
	{ KE_KEY, 0x08, {KEY_MUTE} },
	{ KE_KEY, 0x11, {KEY_PROG1} },
	{ KE_KEY, 0x12, {KEY_PROG2} },
	{ KE_KEY, 0x20, {KEY_VOLUMEUP} },
	{ KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
	{ KE_KEY, 0x22, {KEY_REWIND} },
	{ KE_KEY, 0x23, {KEY_FORWARD} },
	{ KE_KEY, 0x24, {KEY_PLAYPAUSE} },
	{ KE_KEY, 0x25, {KEY_STOPCD} },
	{ KE_KEY, 0x31, {KEY_MAIL} },
	{ KE_KEY, 0x36, {KEY_WWW} },
	{ KE_WIFI, 0x30 },
	{ KE_BLUETOOTH, 0x44 },
	{ KE_END, FE_UNTESTED }
};

static struct key_entry keymap_wistron_generic[] __initdata = {
	{ KE_KEY, 0x01, {KEY_HELP} },
	{ KE_KEY, 0x02, {KEY_CONFIG} },
	{ KE_KEY, 0x03, {KEY_POWER} },
	{ KE_KEY, 0x05, {KEY_SWITCHVIDEOMODE} }, /* Display selection */
	{ KE_KEY, 0x06, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
	{ KE_KEY, 0x08, {KEY_MUTE} },
	{ KE_KEY, 0x11, {KEY_PROG1} },
	{ KE_KEY, 0x12, {KEY_PROG2} },
	{ KE_KEY, 0x13, {KEY_PROG3} },
	{ KE_KEY, 0x14, {KEY_MAIL} },
	{ KE_KEY, 0x15, {KEY_WWW} },
	{ KE_KEY, 0x20, {KEY_VOLUMEUP} },
	{ KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
	{ KE_KEY, 0x22, {KEY_REWIND} },
	{ KE_KEY, 0x23, {KEY_FORWARD} },
	{ KE_KEY, 0x24, {KEY_PLAYPAUSE} },
	{ KE_KEY, 0x25, {KEY_STOPCD} },
	{ KE_KEY, 0x31, {KEY_MAIL} },
	{ KE_KEY, 0x36, {KEY_WWW} },
	{ KE_KEY, 0x37, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
	{ KE_KEY, 0x40, {KEY_WLAN} },
	{ KE_KEY, 0x49, {KEY_CONFIG} },
	{ KE_SW, 0x4a, {.sw = {SW_LID, 1}} }, /* lid close */
	{ KE_SW, 0x4b, {.sw = {SW_LID, 0}} }, /* lid open */
	{ KE_KEY, 0x6a, {KEY_CONFIG} },
	{ KE_KEY, 0x6d, {KEY_POWER} },
	{ KE_KEY, 0x71, {KEY_STOPCD} },
	{ KE_KEY, 0x72, {KEY_PLAYPAUSE} },
	{ KE_KEY, 0x74, {KEY_REWIND} },
	{ KE_KEY, 0x78, {KEY_FORWARD} },
	{ KE_WIFI, 0x30 },
	{ KE_BLUETOOTH, 0x44 },
	{ KE_END, 0 }
};

static struct key_entry keymap_aopen_1557[] __initdata = {
	{ KE_KEY,  0x01, {KEY_HELP} },
	{ KE_KEY,  0x11, {KEY_PROG1} },
	{ KE_KEY,  0x12, {KEY_PROG2} },
	{ KE_WIFI, 0x30 },
	{ KE_KEY,  0x22, {KEY_REWIND} },
	{ KE_KEY,  0x23, {KEY_FORWARD} },
	{ KE_KEY,  0x24, {KEY_PLAYPAUSE} },
	{ KE_KEY,  0x25, {KEY_STOPCD} },
	{ KE_KEY,  0x31, {KEY_MAIL} },
	{ KE_KEY,  0x36, {KEY_WWW} },
	{ KE_END,  0 }
};

static struct key_entry keymap_prestigio[] __initdata = {
	{ KE_KEY,  0x11, {KEY_PROG1} },
	{ KE_KEY,  0x12, {KEY_PROG2} },
	{ KE_WIFI, 0x30 },
	{ KE_KEY,  0x22, {KEY_REWIND} },
	{ KE_KEY,  0x23, {KEY_FORWARD} },
	{ KE_KEY,  0x24, {KEY_PLAYPAUSE} },
	{ KE_KEY,  0x25, {KEY_STOPCD} },
	{ KE_KEY,  0x31, {KEY_MAIL} },
	{ KE_KEY,  0x36, {KEY_WWW} },
	{ KE_END,  0 }
};


/*
 * If your machine is not here (which is currently rather likely), please send
 * a list of buttons and their key codes (reported when loading this module
 * with force=1) and the output of dmidecode to $MODULE_AUTHOR.
 */
static const struct dmi_system_id __initconst dmi_ids[] = {
	{
		/* Fujitsu-Siemens Amilo Pro V2000 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
			DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro V2000"),
		},
		.driver_data = keymap_fs_amilo_pro_v2000
	},
	{
		/* Fujitsu-Siemens Amilo Pro Edition V3505 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
			DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro Edition V3505"),
		},
		.driver_data = keymap_fs_amilo_pro_v3505
	},
	{
		/* Fujitsu-Siemens Amilo M7400 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
			DMI_MATCH(DMI_PRODUCT_NAME, "AMILO M        "),
		},
		.driver_data = keymap_fs_amilo_pro_v2000
	},
	{
		/* Maxdata Pro 7000 DX */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "MAXDATA"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Pro 7000"),
		},
		.driver_data = keymap_fs_amilo_pro_v2000
	},
	{
		/* Fujitsu N3510 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
			DMI_MATCH(DMI_PRODUCT_NAME, "N3510"),
		},
		.driver_data = keymap_fujitsu_n3510
	},
	{
		/* Acer Aspire 1500 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1500"),
		},
		.driver_data = keymap_acer_aspire_1500
	},
	{
		/* Acer Aspire 1600 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1600"),
		},
		.driver_data = keymap_acer_aspire_1600
	},
	{
		/* Acer Aspire 3020 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3020"),
		},
		.driver_data = keymap_acer_aspire_5020
	},
	{
		/* Acer Aspire 5020 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5020"),
		},
		.driver_data = keymap_acer_aspire_5020
	},
	{
		/* Acer TravelMate 2100 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2100"),
		},
		.driver_data = keymap_acer_aspire_5020
	},
	{
		/* Acer TravelMate 2410 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2410"),
		},
		.driver_data = keymap_acer_travelmate_2410
	},
	{
		/* Acer TravelMate C300 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C300"),
		},
		.driver_data = keymap_acer_travelmate_300
	},
	{
		/* Acer TravelMate C100 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C100"),
		},
		.driver_data = keymap_acer_travelmate_300
	},
	{
		/* Acer TravelMate C110 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C110"),
		},
		.driver_data = keymap_acer_travelmate_110
	},
	{
		/* Acer TravelMate 380 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 380"),
		},
		.driver_data = keymap_acer_travelmate_380
	},
	{
		/* Acer TravelMate 370 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 370"),
		},
		.driver_data = keymap_acer_travelmate_380 /* keyboard minus 1 key */
	},
	{
		/* Acer TravelMate 220 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 220"),
		},
		.driver_data = keymap_acer_travelmate_220
	},
	{
		/* Acer TravelMate 260 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 260"),
		},
		.driver_data = keymap_acer_travelmate_220
	},
	{
		/* Acer TravelMate 230 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 230"),
			/* acerhk looks for "TravelMate F4..." ?! */
		},
		.driver_data = keymap_acer_travelmate_230
	},
	{
		/* Acer TravelMate 280 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 280"),
		},
		.driver_data = keymap_acer_travelmate_230
	},
	{
		/* Acer TravelMate 240 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 240"),
		},
		.driver_data = keymap_acer_travelmate_240
	},
	{
		/* Acer TravelMate 250 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 250"),
		},
		.driver_data = keymap_acer_travelmate_240
	},
	{
		/* Acer TravelMate 2424NWXCi */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2420"),
		},
		.driver_data = keymap_acer_travelmate_240
	},
	{
		/* Acer TravelMate 350 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 350"),
		},
		.driver_data = keymap_acer_travelmate_350
	},
	{
		/* Acer TravelMate 360 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
		},
		.driver_data = keymap_acer_travelmate_360
	},
	{
		/* Acer TravelMate 610 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "ACER"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 610"),
		},
		.driver_data = keymap_acer_travelmate_610
	},
	{
		/* Acer TravelMate 620 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 620"),
		},
		.driver_data = keymap_acer_travelmate_630
	},
	{
		/* Acer TravelMate 630 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 630"),
		},
		.driver_data = keymap_acer_travelmate_630
	},
	{
		/* AOpen 1559AS */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_PRODUCT_NAME, "E2U"),
			DMI_MATCH(DMI_BOARD_NAME, "E2U"),
		},
		.driver_data = keymap_aopen_1559as
	},
	{
		/* Medion MD 9783 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
			DMI_MATCH(DMI_PRODUCT_NAME, "MD 9783"),
		},
		.driver_data = keymap_wistron_ms2111
	},
	{
		/* Medion MD 40100 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
			DMI_MATCH(DMI_PRODUCT_NAME, "WID2000"),
		},
		.driver_data = keymap_wistron_md40100
	},
	{
		/* Medion MD 2900 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
			DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2000"),
		},
		.driver_data = keymap_wistron_md2900
	},
	{
		/* Medion MD 42200 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Medion"),
			DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2030"),
		},
		.driver_data = keymap_fs_amilo_pro_v2000
	},
	{
		/* Medion MD 96500 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "MEDIONPC"),
			DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2040"),
		},
		.driver_data = keymap_wistron_md96500
	},
	{
		/* Medion MD 95400 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "MEDIONPC"),
			DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2050"),
		},
		.driver_data = keymap_wistron_md96500
	},
	{
		/* Fujitsu Siemens Amilo D7820 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), /* not sure */
			DMI_MATCH(DMI_PRODUCT_NAME, "Amilo D"),
		},
		.driver_data = keymap_fs_amilo_d88x0
	},
	{
		/* Fujitsu Siemens Amilo D88x0 */
		.callback = dmi_matched,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
			DMI_MATCH(DMI_PRODUCT_NAME, "AMILO D"),
		},
		.driver_data = keymap_fs_amilo_d88x0
	},
	{ NULL, }
};

/* Copy the good keymap, as the original ones are free'd */
static int __init copy_keymap(void)
{
	const struct key_entry *key;
	struct key_entry *new_keymap;
	unsigned int length = 1;

	for (key = keymap; key->type != KE_END; key++)
		length++;

	new_keymap = kmemdup(keymap, length * sizeof(struct key_entry),
			     GFP_KERNEL);
	if (!new_keymap)
		return -ENOMEM;

	keymap = new_keymap;

	return 0;
}

static int __init select_keymap(void)
{
	dmi_check_system(dmi_ids);
	if (keymap_name != NULL) {
		if (strcmp (keymap_name, "1557/MS2141") == 0)
			keymap = keymap_wistron_ms2141;
		else if (strcmp (keymap_name, "aopen1557") == 0)
			keymap = keymap_aopen_1557;
		else if (strcmp (keymap_name, "prestigio") == 0)
			keymap = keymap_prestigio;
		else if (strcmp (keymap_name, "generic") == 0)
			keymap = keymap_wistron_generic;
		else {
			printk(KERN_ERR "wistron_btns: Keymap unknown\n");
			return -EINVAL;
		}
	}
	if (keymap == NULL) {
		if (!force) {
			printk(KERN_ERR "wistron_btns: System unknown\n");
			return -ENODEV;
		}
		keymap = keymap_empty;
	}

	return copy_keymap();
}

 /* Input layer interface */

static struct input_polled_dev *wistron_idev;
static unsigned long jiffies_last_press;
static bool wifi_enabled;
static bool bluetooth_enabled;

 /* led management */
static void wistron_mail_led_set(struct led_classdev *led_cdev,
				enum led_brightness value)
{
	bios_set_state(MAIL_LED, (value != LED_OFF) ? 1 : 0);
}

/* same as setting up wifi card, but for laptops on which the led is managed */
static void wistron_wifi_led_set(struct led_classdev *led_cdev,
				enum led_brightness value)
{
	bios_set_state(WIFI, (value != LED_OFF) ? 1 : 0);
}

static struct led_classdev wistron_mail_led = {
	.name			= "wistron:green:mail",
	.brightness_set		= wistron_mail_led_set,
};

static struct led_classdev wistron_wifi_led = {
	.name			= "wistron:red:wifi",
	.brightness_set		= wistron_wifi_led_set,
};

static void wistron_led_init(struct device *parent)
{
	if (leds_present & FE_WIFI_LED) {
		u16 wifi = bios_get_default_setting(WIFI);
		if (wifi & 1) {
			wistron_wifi_led.brightness = (wifi & 2) ? LED_FULL : LED_OFF;
			if (led_classdev_register(parent, &wistron_wifi_led))
				leds_present &= ~FE_WIFI_LED;
			else
				bios_set_state(WIFI, wistron_wifi_led.brightness);

		} else
			leds_present &= ~FE_WIFI_LED;
	}

	if (leds_present & FE_MAIL_LED) {
		/* bios_get_default_setting(MAIL) always retuns 0, so just turn the led off */
		wistron_mail_led.brightness = LED_OFF;
		if (led_classdev_register(parent, &wistron_mail_led))
			leds_present &= ~FE_MAIL_LED;
		else
			bios_set_state(MAIL_LED, wistron_mail_led.brightness);
	}
}

static void wistron_led_remove(void)
{
	if (leds_present & FE_MAIL_LED)
		led_classdev_unregister(&wistron_mail_led);

	if (leds_present & FE_WIFI_LED)
		led_classdev_unregister(&wistron_wifi_led);
}

static inline void wistron_led_suspend(void)
{
	if (leds_present & FE_MAIL_LED)
		led_classdev_suspend(&wistron_mail_led);

	if (leds_present & FE_WIFI_LED)
		led_classdev_suspend(&wistron_wifi_led);
}

static inline void wistron_led_resume(void)
{
	if (leds_present & FE_MAIL_LED)
		led_classdev_resume(&wistron_mail_led);

	if (leds_present & FE_WIFI_LED)
		led_classdev_resume(&wistron_wifi_led);
}

static void handle_key(u8 code)
{
	const struct key_entry *key =
		sparse_keymap_entry_from_scancode(wistron_idev->input, code);

	if (key) {
		switch (key->type) {
		case KE_WIFI:
			if (have_wifi) {
				wifi_enabled = !wifi_enabled;
				bios_set_state(WIFI, wifi_enabled);
			}
			break;

		case KE_BLUETOOTH:
			if (have_bluetooth) {
				bluetooth_enabled = !bluetooth_enabled;
				bios_set_state(BLUETOOTH, bluetooth_enabled);
			}
			break;

		default:
			sparse_keymap_report_entry(wistron_idev->input,
						   key, 1, true);
			break;
		}
		jiffies_last_press = jiffies;
	} else
		printk(KERN_NOTICE
			"wistron_btns: Unknown key code %02X\n", code);
}

static void poll_bios(bool discard)
{
	u8 qlen;
	u16 val;

	for (;;) {
		qlen = CMOS_READ(cmos_address);
		if (qlen == 0)
			break;
		val = bios_pop_queue();
		if (val != 0 && !discard)
			handle_key((u8)val);
	}
}

static void wistron_flush(struct input_polled_dev *dev)
{
	/* Flush stale event queue */
	poll_bios(true);
}

static void wistron_poll(struct input_polled_dev *dev)
{
	poll_bios(false);

	/* Increase poll frequency if user is currently pressing keys (< 2s ago) */
	if (time_before(jiffies, jiffies_last_press + 2 * HZ))
		dev->poll_interval = POLL_INTERVAL_BURST;
	else
		dev->poll_interval = POLL_INTERVAL_DEFAULT;
}

static int wistron_setup_keymap(struct input_dev *dev,
					  struct key_entry *entry)
{
	switch (entry->type) {

	/* if wifi or bluetooth are not available, create normal keys */
	case KE_WIFI:
		if (!have_wifi) {
			entry->type = KE_KEY;
			entry->keycode = KEY_WLAN;
		}
		break;

	case KE_BLUETOOTH:
		if (!have_bluetooth) {
			entry->type = KE_KEY;
			entry->keycode = KEY_BLUETOOTH;
		}
		break;

	case KE_END:
		if (entry->code & FE_UNTESTED)
			printk(KERN_WARNING "Untested laptop multimedia keys, "
				"please report success or failure to "
				"eric.piel@tremplin-utc.net\n");
		break;
	}

	return 0;
}

static int setup_input_dev(void)
{
	struct input_dev *input_dev;
	int error;

	wistron_idev = input_allocate_polled_device();
	if (!wistron_idev)
		return -ENOMEM;

	wistron_idev->open = wistron_flush;
	wistron_idev->poll = wistron_poll;
	wistron_idev->poll_interval = POLL_INTERVAL_DEFAULT;

	input_dev = wistron_idev->input;
	input_dev->name = "Wistron laptop buttons";
	input_dev->phys = "wistron/input0";
	input_dev->id.bustype = BUS_HOST;
	input_dev->dev.parent = &wistron_device->dev;

	error = sparse_keymap_setup(input_dev, keymap, wistron_setup_keymap);
	if (error)
		goto err_free_dev;

	error = input_register_polled_device(wistron_idev);
	if (error)
		goto err_free_keymap;

	return 0;

 err_free_keymap:
	sparse_keymap_free(input_dev);
 err_free_dev:
	input_free_polled_device(wistron_idev);
	return error;
}

/* Driver core */

static int wistron_probe(struct platform_device *dev)
{
	int err;

	bios_attach();
	cmos_address = bios_get_cmos_address();

	if (have_wifi) {
		u16 wifi = bios_get_default_setting(WIFI);
		if (wifi & 1)
			wifi_enabled = wifi & 2;
		else
			have_wifi = 0;

		if (have_wifi)
			bios_set_state(WIFI, wifi_enabled);
	}

	if (have_bluetooth) {
		u16 bt = bios_get_default_setting(BLUETOOTH);
		if (bt & 1)
			bluetooth_enabled = bt & 2;
		else
			have_bluetooth = false;

		if (have_bluetooth)
			bios_set_state(BLUETOOTH, bluetooth_enabled);
	}

	wistron_led_init(&dev->dev);

	err = setup_input_dev();
	if (err) {
		bios_detach();
		return err;
	}

	return 0;
}

static int wistron_remove(struct platform_device *dev)
{
	wistron_led_remove();
	input_unregister_polled_device(wistron_idev);
	sparse_keymap_free(wistron_idev->input);
	input_free_polled_device(wistron_idev);
	bios_detach();

	return 0;
}

#ifdef CONFIG_PM
static int wistron_suspend(struct device *dev)
{
	if (have_wifi)
		bios_set_state(WIFI, 0);

	if (have_bluetooth)
		bios_set_state(BLUETOOTH, 0);

	wistron_led_suspend();

	return 0;
}

static int wistron_resume(struct device *dev)
{
	if (have_wifi)
		bios_set_state(WIFI, wifi_enabled);

	if (have_bluetooth)
		bios_set_state(BLUETOOTH, bluetooth_enabled);

	wistron_led_resume();

	poll_bios(true);

	return 0;
}

static const struct dev_pm_ops wistron_pm_ops = {
	.suspend	= wistron_suspend,
	.resume		= wistron_resume,
	.poweroff	= wistron_suspend,
	.restore	= wistron_resume,
};
#endif

static struct platform_driver wistron_driver = {
	.driver		= {
		.name	= "wistron-bios",
		.owner	= THIS_MODULE,
#ifdef CONFIG_PM
		.pm	= &wistron_pm_ops,
#endif
	},
	.probe		= wistron_probe,
	.remove		= wistron_remove,
};

static int __init wb_module_init(void)
{
	int err;

	err = select_keymap();
	if (err)
		return err;

	err = map_bios();
	if (err)
		goto err_free_keymap;

	err = platform_driver_register(&wistron_driver);
	if (err)
		goto err_unmap_bios;

	wistron_device = platform_device_alloc("wistron-bios", -1);
	if (!wistron_device) {
		err = -ENOMEM;
		goto err_unregister_driver;
	}

	err = platform_device_add(wistron_device);
	if (err)
		goto err_free_device;

	return 0;

 err_free_device:
	platform_device_put(wistron_device);
 err_unregister_driver:
	platform_driver_unregister(&wistron_driver);
 err_unmap_bios:
	unmap_bios();
 err_free_keymap:
	kfree(keymap);

	return err;
}

static void __exit wb_module_exit(void)
{
	platform_device_unregister(wistron_device);
	platform_driver_unregister(&wistron_driver);
	unmap_bios();
	kfree(keymap);
}

module_init(wb_module_init);
module_exit(wb_module_exit);