summaryrefslogtreecommitdiff
path: root/sound/isa/opti9xx/miro.c
blob: e764816a8f7a1f89f045cedaa149d8ee21180e9f (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
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *   ALSA soundcard driver for Miro miroSOUND PCM1 pro
 *                                  miroSOUND PCM12
 *                                  miroSOUND PCM20 Radio
 *
 *   Copyright (C) 2004-2005 Martin Langer <martin-langer@gmx.de>
 *
 *   Based on OSS ACI and ALSA OPTi9xx drivers
 */

#include <linux/init.h>
#include <linux/err.h>
#include <linux/isa.h>
#include <linux/pnp.h>
#include <linux/delay.h>
#include <linux/ioport.h>
#include <linux/module.h>
#include <linux/io.h>
#include <asm/dma.h>
#include <sound/core.h>
#include <sound/wss.h>
#include <sound/mpu401.h>
#include <sound/opl4.h>
#include <sound/control.h>
#include <sound/info.h>
#define SNDRV_LEGACY_FIND_FREE_IOPORT
#define SNDRV_LEGACY_FIND_FREE_IRQ
#define SNDRV_LEGACY_FIND_FREE_DMA
#include <sound/initval.h>
#include <sound/aci.h>

MODULE_AUTHOR("Martin Langer <martin-langer@gmx.de>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Miro miroSOUND PCM1 pro, PCM12, PCM20 Radio");
MODULE_SUPPORTED_DEVICE("{{Miro,miroSOUND PCM1 pro}, "
			"{Miro,miroSOUND PCM12}, "
			"{Miro,miroSOUND PCM20 Radio}}");

static int index = SNDRV_DEFAULT_IDX1;		/* Index 0-MAX */
static char *id = SNDRV_DEFAULT_STR1;		/* ID for this card */
static long port = SNDRV_DEFAULT_PORT1; 	/* 0x530,0xe80,0xf40,0x604 */
static long mpu_port = SNDRV_DEFAULT_PORT1;	/* 0x300,0x310,0x320,0x330 */
static long fm_port = SNDRV_DEFAULT_PORT1;	/* 0x388 */
static int irq = SNDRV_DEFAULT_IRQ1;		/* 5,7,9,10,11 */
static int mpu_irq = SNDRV_DEFAULT_IRQ1;	/* 5,7,9,10 */
static int dma1 = SNDRV_DEFAULT_DMA1;		/* 0,1,3 */
static int dma2 = SNDRV_DEFAULT_DMA1;		/* 0,1,3 */
static int wss;
static int ide;
#ifdef CONFIG_PNP
static bool isapnp = 1;				/* Enable ISA PnP detection */
#endif

module_param(index, int, 0444);
MODULE_PARM_DESC(index, "Index value for miro soundcard.");
module_param(id, charp, 0444);
MODULE_PARM_DESC(id, "ID string for miro soundcard.");
module_param_hw(port, long, ioport, 0444);
MODULE_PARM_DESC(port, "WSS port # for miro driver.");
module_param_hw(mpu_port, long, ioport, 0444);
MODULE_PARM_DESC(mpu_port, "MPU-401 port # for miro driver.");
module_param_hw(fm_port, long, ioport, 0444);
MODULE_PARM_DESC(fm_port, "FM Port # for miro driver.");
module_param_hw(irq, int, irq, 0444);
MODULE_PARM_DESC(irq, "WSS irq # for miro driver.");
module_param_hw(mpu_irq, int, irq, 0444);
MODULE_PARM_DESC(mpu_irq, "MPU-401 irq # for miro driver.");
module_param_hw(dma1, int, dma, 0444);
MODULE_PARM_DESC(dma1, "1st dma # for miro driver.");
module_param_hw(dma2, int, dma, 0444);
MODULE_PARM_DESC(dma2, "2nd dma # for miro driver.");
module_param(wss, int, 0444);
MODULE_PARM_DESC(wss, "wss mode");
module_param(ide, int, 0444);
MODULE_PARM_DESC(ide, "enable ide port");
#ifdef CONFIG_PNP
module_param(isapnp, bool, 0444);
MODULE_PARM_DESC(isapnp, "Enable ISA PnP detection for specified soundcard.");
#endif

#define OPTi9XX_HW_DETECT	0
#define OPTi9XX_HW_82C928	1
#define OPTi9XX_HW_82C929	2
#define OPTi9XX_HW_82C924	3
#define OPTi9XX_HW_82C925	4
#define OPTi9XX_HW_82C930	5
#define OPTi9XX_HW_82C931	6
#define OPTi9XX_HW_82C933	7
#define OPTi9XX_HW_LAST		OPTi9XX_HW_82C933

#define OPTi9XX_MC_REG(n)	n

struct snd_miro {
	unsigned short hardware;
	unsigned char password;
	char name[7];

	struct resource *res_mc_base;
	struct resource *res_aci_port;

	unsigned long mc_base;
	unsigned long mc_base_size;
	unsigned long pwd_reg;

	spinlock_t lock;
	struct snd_pcm *pcm;

	long wss_base;
	int irq;
	int dma1;
	int dma2;

	long mpu_port;
	int mpu_irq;

	struct snd_miro_aci *aci;
};

static struct snd_miro_aci aci_device;

static const char * const snd_opti9xx_names[] = {
	"unknown",
	"82C928", "82C929",
	"82C924", "82C925",
	"82C930", "82C931", "82C933"
};

static int snd_miro_pnp_is_probed;

#ifdef CONFIG_PNP

static const struct pnp_card_device_id snd_miro_pnpids[] = {
	/* PCM20 and PCM12 in PnP mode */
	{ .id = "MIR0924",
	  .devs = { { "MIR0000" }, { "MIR0002" }, { "MIR0005" } }, },
	{ .id = "" }
};

MODULE_DEVICE_TABLE(pnp_card, snd_miro_pnpids);

#endif	/* CONFIG_PNP */

/* 
 *  ACI control
 */

static int aci_busy_wait(struct snd_miro_aci *aci)
{
	long timeout;
	unsigned char byte;

	for (timeout = 1; timeout <= ACI_MINTIME + 30; timeout++) {
		byte = inb(aci->aci_port + ACI_REG_BUSY);
		if ((byte & 1) == 0) {
			if (timeout >= ACI_MINTIME)
				snd_printd("aci ready in round %ld.\n",
					   timeout-ACI_MINTIME);
			return byte;
		}
		if (timeout >= ACI_MINTIME) {
			long out=10*HZ;
			switch (timeout-ACI_MINTIME) {
			case 0 ... 9:
				out /= 10;
				/* fall through */
			case 10 ... 19:
				out /= 10;
				/* fall through */
			case 20 ... 30:
				out /= 10;
				/* fall through */
			default:
				set_current_state(TASK_UNINTERRUPTIBLE);
				schedule_timeout(out);
				break;
			}
		}
	}
	snd_printk(KERN_ERR "aci_busy_wait() time out\n");
	return -EBUSY;
}

static inline int aci_write(struct snd_miro_aci *aci, unsigned char byte)
{
	if (aci_busy_wait(aci) >= 0) {
		outb(byte, aci->aci_port + ACI_REG_COMMAND);
		return 0;
	} else {
		snd_printk(KERN_ERR "aci busy, aci_write(0x%x) stopped.\n", byte);
		return -EBUSY;
	}
}

static inline int aci_read(struct snd_miro_aci *aci)
{
	unsigned char byte;

	if (aci_busy_wait(aci) >= 0) {
		byte = inb(aci->aci_port + ACI_REG_STATUS);
		return byte;
	} else {
		snd_printk(KERN_ERR "aci busy, aci_read() stopped.\n");
		return -EBUSY;
	}
}

int snd_aci_cmd(struct snd_miro_aci *aci, int write1, int write2, int write3)
{
	int write[] = {write1, write2, write3};
	int value, i;

	if (mutex_lock_interruptible(&aci->aci_mutex))
		return -EINTR;

	for (i=0; i<3; i++) {
		if (write[i]< 0 || write[i] > 255)
			break;
		else {
			value = aci_write(aci, write[i]);
			if (value < 0)
				goto out;
		}
	}

	value = aci_read(aci);

out:	mutex_unlock(&aci->aci_mutex);
	return value;
}
EXPORT_SYMBOL(snd_aci_cmd);

static int aci_getvalue(struct snd_miro_aci *aci, unsigned char index)
{
	return snd_aci_cmd(aci, ACI_STATUS, index, -1);
}

static int aci_setvalue(struct snd_miro_aci *aci, unsigned char index,
			int value)
{
	return snd_aci_cmd(aci, index, value, -1);
}

struct snd_miro_aci *snd_aci_get_aci(void)
{
	if (aci_device.aci_port == 0)
		return NULL;
	return &aci_device;
}
EXPORT_SYMBOL(snd_aci_get_aci);

/*
 *  MIXER part
 */

#define snd_miro_info_capture	snd_ctl_boolean_mono_info

static int snd_miro_get_capture(struct snd_kcontrol *kcontrol,
				struct snd_ctl_elem_value *ucontrol)
{
	struct snd_miro *miro = snd_kcontrol_chip(kcontrol);
	int value;

	value = aci_getvalue(miro->aci, ACI_S_GENERAL);
	if (value < 0) {
		snd_printk(KERN_ERR "snd_miro_get_capture() failed: %d\n",
			   value);
		return value;
	}

	ucontrol->value.integer.value[0] = value & 0x20;

	return 0;
}

static int snd_miro_put_capture(struct snd_kcontrol *kcontrol,
				struct snd_ctl_elem_value *ucontrol)
{
	struct snd_miro *miro = snd_kcontrol_chip(kcontrol);
	int change, value, error;

	value = !(ucontrol->value.integer.value[0]);

	error = aci_setvalue(miro->aci, ACI_SET_SOLOMODE, value);
	if (error < 0) {
		snd_printk(KERN_ERR "snd_miro_put_capture() failed: %d\n",
			   error);
		return error;
	}

	change = (value != miro->aci->aci_solomode);
	miro->aci->aci_solomode = value;
	
	return change;
}

static int snd_miro_info_preamp(struct snd_kcontrol *kcontrol,
				struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 3;

	return 0;
}

static int snd_miro_get_preamp(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct snd_miro *miro = snd_kcontrol_chip(kcontrol);
	int value;

	if (miro->aci->aci_version <= 176) {

		/* 
		   OSS says it's not readable with versions < 176.
		   But it doesn't work on my card,
		   which is a PCM12 with aci_version = 176.
		*/

		ucontrol->value.integer.value[0] = miro->aci->aci_preamp;
		return 0;
	}

	value = aci_getvalue(miro->aci, ACI_GET_PREAMP);
	if (value < 0) {
		snd_printk(KERN_ERR "snd_miro_get_preamp() failed: %d\n",
			   value);
		return value;
	}
	
	ucontrol->value.integer.value[0] = value;

	return 0;
}

static int snd_miro_put_preamp(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct snd_miro *miro = snd_kcontrol_chip(kcontrol);
	int error, value, change;

	value = ucontrol->value.integer.value[0];

	error = aci_setvalue(miro->aci, ACI_SET_PREAMP, value);
	if (error < 0) {
		snd_printk(KERN_ERR "snd_miro_put_preamp() failed: %d\n",
			   error);
		return error;
	}

	change = (value != miro->aci->aci_preamp);
	miro->aci->aci_preamp = value;

	return change;
}

#define snd_miro_info_amp	snd_ctl_boolean_mono_info

static int snd_miro_get_amp(struct snd_kcontrol *kcontrol,
			    struct snd_ctl_elem_value *ucontrol)
{
	struct snd_miro *miro = snd_kcontrol_chip(kcontrol);
	ucontrol->value.integer.value[0] = miro->aci->aci_amp;

	return 0;
}

static int snd_miro_put_amp(struct snd_kcontrol *kcontrol,
			    struct snd_ctl_elem_value *ucontrol)
{
	struct snd_miro *miro = snd_kcontrol_chip(kcontrol);
	int error, value, change;

	value = ucontrol->value.integer.value[0];

	error = aci_setvalue(miro->aci, ACI_SET_POWERAMP, value);
	if (error < 0) {
		snd_printk(KERN_ERR "snd_miro_put_amp() to %d failed: %d\n", value, error);
		return error;
	}

	change = (value != miro->aci->aci_amp);
	miro->aci->aci_amp = value;

	return change;
}

#define MIRO_DOUBLE(ctl_name, ctl_index, get_right_reg, set_right_reg) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
  .name = ctl_name, \
  .index = ctl_index, \
  .info = snd_miro_info_double, \
  .get = snd_miro_get_double, \
  .put = snd_miro_put_double, \
  .private_value = get_right_reg | (set_right_reg << 8) \
}

static int snd_miro_info_double(struct snd_kcontrol *kcontrol, 
				struct snd_ctl_elem_info *uinfo)
{
	int reg = kcontrol->private_value & 0xff;

	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 2;

	if ((reg >= ACI_GET_EQ1) && (reg <= ACI_GET_EQ7)) {

		/* equalizer elements */

		uinfo->value.integer.min = - 0x7f;
		uinfo->value.integer.max = 0x7f;
	} else {

		/* non-equalizer elements */

		uinfo->value.integer.min = 0;
		uinfo->value.integer.max = 0x20;
	}

	return 0;
}

static int snd_miro_get_double(struct snd_kcontrol *kcontrol, 
			       struct snd_ctl_elem_value *uinfo)
{
	struct snd_miro *miro = snd_kcontrol_chip(kcontrol);
	int left_val, right_val;

	int right_reg = kcontrol->private_value & 0xff;
	int left_reg = right_reg + 1;

	right_val = aci_getvalue(miro->aci, right_reg);
	if (right_val < 0) {
		snd_printk(KERN_ERR "aci_getvalue(%d) failed: %d\n", right_reg, right_val);
		return right_val;
	}

	left_val = aci_getvalue(miro->aci, left_reg);
	if (left_val < 0) {
		snd_printk(KERN_ERR "aci_getvalue(%d) failed: %d\n", left_reg, left_val);
		return left_val;
	}

	if ((right_reg >= ACI_GET_EQ1) && (right_reg <= ACI_GET_EQ7)) {

		/* equalizer elements */

		if (left_val < 0x80) {
			uinfo->value.integer.value[0] = left_val;
		} else {
			uinfo->value.integer.value[0] = 0x80 - left_val;
		}

		if (right_val < 0x80) {
			uinfo->value.integer.value[1] = right_val;
		} else {
			uinfo->value.integer.value[1] = 0x80 - right_val;
		}

	} else {

		/* non-equalizer elements */

		uinfo->value.integer.value[0] = 0x20 - left_val;
		uinfo->value.integer.value[1] = 0x20 - right_val;
	}

	return 0;
}

static int snd_miro_put_double(struct snd_kcontrol *kcontrol, 
			       struct snd_ctl_elem_value *ucontrol)
{
	struct snd_miro *miro = snd_kcontrol_chip(kcontrol);
	struct snd_miro_aci *aci = miro->aci;
	int left, right, left_old, right_old;
	int setreg_left, setreg_right, getreg_left, getreg_right;
	int change, error;

	left = ucontrol->value.integer.value[0];
	right = ucontrol->value.integer.value[1];

	setreg_right = (kcontrol->private_value >> 8) & 0xff;
	setreg_left = setreg_right + 8;
	if (setreg_right == ACI_SET_MASTER)
		setreg_left -= 7;

	getreg_right = kcontrol->private_value & 0xff;
	getreg_left = getreg_right + 1;

	left_old = aci_getvalue(aci, getreg_left);
	if (left_old < 0) {
		snd_printk(KERN_ERR "aci_getvalue(%d) failed: %d\n", getreg_left, left_old);
		return left_old;
	}

	right_old = aci_getvalue(aci, getreg_right);
	if (right_old < 0) {
		snd_printk(KERN_ERR "aci_getvalue(%d) failed: %d\n", getreg_right, right_old);
		return right_old;
	}

	if ((getreg_right >= ACI_GET_EQ1) && (getreg_right <= ACI_GET_EQ7)) {

		/* equalizer elements */

		if (left < -0x7f || left > 0x7f ||
		    right < -0x7f || right > 0x7f)
			return -EINVAL;

		if (left_old > 0x80) 
			left_old = 0x80 - left_old;
		if (right_old > 0x80) 
			right_old = 0x80 - right_old;

		if (left >= 0) {
			error = aci_setvalue(aci, setreg_left, left);
			if (error < 0) {
				snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n",
					   left, error);
				return error;
			}
		} else {
			error = aci_setvalue(aci, setreg_left, 0x80 - left);
			if (error < 0) {
				snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n",
					   0x80 - left, error);
				return error;
			}
		}

		if (right >= 0) {
			error = aci_setvalue(aci, setreg_right, right);
			if (error < 0) {
				snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n",
					   right, error);
				return error;
			}
		} else {
			error = aci_setvalue(aci, setreg_right, 0x80 - right);
			if (error < 0) {
				snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n",
					   0x80 - right, error);
				return error;
			}
		}

	} else {

		/* non-equalizer elements */

		if (left < 0 || left > 0x20 ||
		    right < 0 || right > 0x20)
			return -EINVAL;

		left_old = 0x20 - left_old;
		right_old = 0x20 - right_old;

		error = aci_setvalue(aci, setreg_left, 0x20 - left);
		if (error < 0) {
			snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n",
				   0x20 - left, error);
			return error;
		}
		error = aci_setvalue(aci, setreg_right, 0x20 - right);
		if (error < 0) {
			snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n",
				   0x20 - right, error);
			return error;
		}
	}

	change = (left != left_old) || (right != right_old);

	return change;
}

static const struct snd_kcontrol_new snd_miro_controls[] = {
MIRO_DOUBLE("Master Playback Volume", 0, ACI_GET_MASTER, ACI_SET_MASTER),
MIRO_DOUBLE("Mic Playback Volume", 1, ACI_GET_MIC, ACI_SET_MIC),
MIRO_DOUBLE("Line Playback Volume", 1, ACI_GET_LINE, ACI_SET_LINE),
MIRO_DOUBLE("CD Playback Volume", 0, ACI_GET_CD, ACI_SET_CD),
MIRO_DOUBLE("Synth Playback Volume", 0, ACI_GET_SYNTH, ACI_SET_SYNTH),
MIRO_DOUBLE("PCM Playback Volume", 1, ACI_GET_PCM, ACI_SET_PCM),
MIRO_DOUBLE("Aux Playback Volume", 2, ACI_GET_LINE2, ACI_SET_LINE2),
};

/* Equalizer with seven bands (only PCM20) 
   from -12dB up to +12dB on each band */
static const struct snd_kcontrol_new snd_miro_eq_controls[] = {
MIRO_DOUBLE("Tone Control - 28 Hz", 0, ACI_GET_EQ1, ACI_SET_EQ1),
MIRO_DOUBLE("Tone Control - 160 Hz", 0, ACI_GET_EQ2, ACI_SET_EQ2),
MIRO_DOUBLE("Tone Control - 400 Hz", 0, ACI_GET_EQ3, ACI_SET_EQ3),
MIRO_DOUBLE("Tone Control - 1 kHz", 0, ACI_GET_EQ4, ACI_SET_EQ4),
MIRO_DOUBLE("Tone Control - 2.5 kHz", 0, ACI_GET_EQ5, ACI_SET_EQ5),
MIRO_DOUBLE("Tone Control - 6.3 kHz", 0, ACI_GET_EQ6, ACI_SET_EQ6),
MIRO_DOUBLE("Tone Control - 16 kHz", 0, ACI_GET_EQ7, ACI_SET_EQ7),
};

static const struct snd_kcontrol_new snd_miro_radio_control[] = {
MIRO_DOUBLE("Radio Playback Volume", 0, ACI_GET_LINE1, ACI_SET_LINE1),
};

static const struct snd_kcontrol_new snd_miro_line_control[] = {
MIRO_DOUBLE("Line Playback Volume", 2, ACI_GET_LINE1, ACI_SET_LINE1),
};

static const struct snd_kcontrol_new snd_miro_preamp_control[] = {
{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Mic Boost",
	.index = 1,
	.info = snd_miro_info_preamp,
	.get = snd_miro_get_preamp,
	.put = snd_miro_put_preamp,
}};

static const struct snd_kcontrol_new snd_miro_amp_control[] = {
{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Line Boost",
	.index = 0,
	.info = snd_miro_info_amp,
	.get = snd_miro_get_amp,
	.put = snd_miro_put_amp,
}};

static const struct snd_kcontrol_new snd_miro_capture_control[] = {
{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "PCM Capture Switch",
	.index = 0,
	.info = snd_miro_info_capture,
	.get = snd_miro_get_capture,
	.put = snd_miro_put_capture,
}};

static const unsigned char aci_init_values[][2] = {
	{ ACI_SET_MUTE, 0x00 },
	{ ACI_SET_POWERAMP, 0x00 },
	{ ACI_SET_PREAMP, 0x00 },
	{ ACI_SET_SOLOMODE, 0x00 },
	{ ACI_SET_MIC + 0, 0x20 },
	{ ACI_SET_MIC + 8, 0x20 },
	{ ACI_SET_LINE + 0, 0x20 },
	{ ACI_SET_LINE + 8, 0x20 },
	{ ACI_SET_CD + 0, 0x20 },
	{ ACI_SET_CD + 8, 0x20 },
	{ ACI_SET_PCM + 0, 0x20 },
	{ ACI_SET_PCM + 8, 0x20 },
	{ ACI_SET_LINE1 + 0, 0x20 },
	{ ACI_SET_LINE1 + 8, 0x20 },
	{ ACI_SET_LINE2 + 0, 0x20 },
	{ ACI_SET_LINE2 + 8, 0x20 },
	{ ACI_SET_SYNTH + 0, 0x20 },
	{ ACI_SET_SYNTH + 8, 0x20 },
	{ ACI_SET_MASTER + 0, 0x20 },
	{ ACI_SET_MASTER + 1, 0x20 },
};

static int snd_set_aci_init_values(struct snd_miro *miro)
{
	int idx, error;
	struct snd_miro_aci *aci = miro->aci;

	/* enable WSS on PCM1 */

	if ((aci->aci_product == 'A') && wss) {
		error = aci_setvalue(aci, ACI_SET_WSS, wss);
		if (error < 0) {
			snd_printk(KERN_ERR "enabling WSS mode failed\n");
			return error;
		}
	}

	/* enable IDE port */

	if (ide) {
		error = aci_setvalue(aci, ACI_SET_IDE, ide);
		if (error < 0) {
			snd_printk(KERN_ERR "enabling IDE port failed\n");
			return error;
		}
	}

	/* set common aci values */

	for (idx = 0; idx < ARRAY_SIZE(aci_init_values); idx++) {
		error = aci_setvalue(aci, aci_init_values[idx][0],
				     aci_init_values[idx][1]);
		if (error < 0) {
			snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n", 
				   aci_init_values[idx][0], error);
                        return error;
                }
	}
	aci->aci_amp = 0;
	aci->aci_preamp = 0;
	aci->aci_solomode = 1;

	return 0;
}

static int snd_miro_mixer(struct snd_card *card,
			  struct snd_miro *miro)
{
	unsigned int idx;
	int err;

	if (snd_BUG_ON(!miro || !card))
		return -EINVAL;

	switch (miro->hardware) {
	case OPTi9XX_HW_82C924:
		strcpy(card->mixername, "ACI & OPTi924");
		break;
	case OPTi9XX_HW_82C929:
		strcpy(card->mixername, "ACI & OPTi929");
		break;
	default:
		snd_BUG();
		break;
	}

	for (idx = 0; idx < ARRAY_SIZE(snd_miro_controls); idx++) {
		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_controls[idx], miro))) < 0)
			return err;
	}

	if ((miro->aci->aci_product == 'A') ||
	    (miro->aci->aci_product == 'B')) {
		/* PCM1/PCM12 with power-amp and Line 2 */
		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_line_control[0], miro))) < 0)
			return err;
		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_amp_control[0], miro))) < 0)
			return err;
	}

	if ((miro->aci->aci_product == 'B') ||
	    (miro->aci->aci_product == 'C')) {
		/* PCM12/PCM20 with mic-preamp */
		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_preamp_control[0], miro))) < 0)
			return err;
		if (miro->aci->aci_version >= 176)
			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_capture_control[0], miro))) < 0)
				return err;
	}

	if (miro->aci->aci_product == 'C') {
		/* PCM20 with radio and 7 band equalizer */
		if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_radio_control[0], miro))) < 0)
			return err;
		for (idx = 0; idx < ARRAY_SIZE(snd_miro_eq_controls); idx++) {
			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_eq_controls[idx], miro))) < 0)
				return err;
		}
	}

	return 0;
}

static int snd_miro_init(struct snd_miro *chip,
			 unsigned short hardware)
{
	static const int opti9xx_mc_size[] = {7, 7, 10, 10, 2, 2, 2};

	chip->hardware = hardware;
	strcpy(chip->name, snd_opti9xx_names[hardware]);

	chip->mc_base_size = opti9xx_mc_size[hardware];  

	spin_lock_init(&chip->lock);

	chip->wss_base = -1;
	chip->irq = -1;
	chip->dma1 = -1;
	chip->dma2 = -1;
	chip->mpu_port = -1;
	chip->mpu_irq = -1;

	chip->pwd_reg = 3;

#ifdef CONFIG_PNP
	if (isapnp && chip->mc_base)
		/* PnP resource gives the least 10 bits */
		chip->mc_base |= 0xc00;
	else
#endif
		chip->mc_base = 0xf8c;

	switch (hardware) {
	case OPTi9XX_HW_82C929:
		chip->password = 0xe3;
		break;

	case OPTi9XX_HW_82C924:
		chip->password = 0xe5;
		break;

	default:
		snd_printk(KERN_ERR "sorry, no support for %d\n", hardware);
		return -ENODEV;
	}

	return 0;
}

static unsigned char snd_miro_read(struct snd_miro *chip,
				   unsigned char reg)
{
	unsigned long flags;
	unsigned char retval = 0xff;

	spin_lock_irqsave(&chip->lock, flags);
	outb(chip->password, chip->mc_base + chip->pwd_reg);

	switch (chip->hardware) {
	case OPTi9XX_HW_82C924:
		if (reg > 7) {
			outb(reg, chip->mc_base + 8);
			outb(chip->password, chip->mc_base + chip->pwd_reg);
			retval = inb(chip->mc_base + 9);
			break;
		}
		/* fall through */

	case OPTi9XX_HW_82C929:
		retval = inb(chip->mc_base + reg);
		break;

	default:
		snd_printk(KERN_ERR "sorry, no support for %d\n", chip->hardware);
	}

	spin_unlock_irqrestore(&chip->lock, flags);
	return retval;
}

static void snd_miro_write(struct snd_miro *chip, unsigned char reg,
			   unsigned char value)
{
	unsigned long flags;

	spin_lock_irqsave(&chip->lock, flags);
	outb(chip->password, chip->mc_base + chip->pwd_reg);

	switch (chip->hardware) {
	case OPTi9XX_HW_82C924:
		if (reg > 7) {
			outb(reg, chip->mc_base + 8);
			outb(chip->password, chip->mc_base + chip->pwd_reg);
			outb(value, chip->mc_base + 9);
			break;
		}
		/* fall through */

	case OPTi9XX_HW_82C929:
		outb(value, chip->mc_base + reg);
		break;

	default:
		snd_printk(KERN_ERR "sorry, no support for %d\n", chip->hardware);
	}

	spin_unlock_irqrestore(&chip->lock, flags);
}


#define snd_miro_write_mask(chip, reg, value, mask)	\
	snd_miro_write(chip, reg,			\
		(snd_miro_read(chip, reg) & ~(mask)) | ((value) & (mask)))

/*
 *  Proc Interface
 */

static void snd_miro_proc_read(struct snd_info_entry * entry, 
			       struct snd_info_buffer *buffer)
{
	struct snd_miro *miro = (struct snd_miro *) entry->private_data;
	struct snd_miro_aci *aci = miro->aci;
	char* model = "unknown";

	/* miroSOUND PCM1 pro, early PCM12 */

	if ((miro->hardware == OPTi9XX_HW_82C929) &&
	    (aci->aci_vendor == 'm') &&
	    (aci->aci_product == 'A')) {
		switch (aci->aci_version) {
		case 3:
			model = "miroSOUND PCM1 pro";
			break;
		default:
			model = "miroSOUND PCM1 pro / (early) PCM12";
			break;
		}
	}

	/* miroSOUND PCM12, PCM12 (Rev. E), PCM12 pnp */

	if ((miro->hardware == OPTi9XX_HW_82C924) &&
	    (aci->aci_vendor == 'm') &&
	    (aci->aci_product == 'B')) {
		switch (aci->aci_version) {
		case 4:
			model = "miroSOUND PCM12";
			break;
		case 176:
			model = "miroSOUND PCM12 (Rev. E)";
			break;
		default:
			model = "miroSOUND PCM12 / PCM12 pnp";
			break;
		}
	}

	/* miroSOUND PCM20 radio */

	if ((miro->hardware == OPTi9XX_HW_82C924) &&
	    (aci->aci_vendor == 'm') &&
	    (aci->aci_product == 'C')) {
		switch (aci->aci_version) {
		case 7:
			model = "miroSOUND PCM20 radio (Rev. E)";
			break;
		default:
			model = "miroSOUND PCM20 radio";
			break;
		}
	}

	snd_iprintf(buffer, "\nGeneral information:\n");
	snd_iprintf(buffer, "  model   : %s\n", model);
	snd_iprintf(buffer, "  opti    : %s\n", miro->name);
	snd_iprintf(buffer, "  codec   : %s\n", miro->pcm->name);
	snd_iprintf(buffer, "  port    : 0x%lx\n", miro->wss_base);
	snd_iprintf(buffer, "  irq     : %d\n", miro->irq);
	snd_iprintf(buffer, "  dma     : %d,%d\n\n", miro->dma1, miro->dma2);

	snd_iprintf(buffer, "MPU-401:\n");
	snd_iprintf(buffer, "  port    : 0x%lx\n", miro->mpu_port);
	snd_iprintf(buffer, "  irq     : %d\n\n", miro->mpu_irq);

	snd_iprintf(buffer, "ACI information:\n");
	snd_iprintf(buffer, "  vendor  : ");
	switch (aci->aci_vendor) {
	case 'm':
		snd_iprintf(buffer, "Miro\n");
		break;
	default:
		snd_iprintf(buffer, "unknown (0x%x)\n", aci->aci_vendor);
		break;
	}

	snd_iprintf(buffer, "  product : ");
	switch (aci->aci_product) {
	case 'A':
		snd_iprintf(buffer, "miroSOUND PCM1 pro / (early) PCM12\n");
		break;
	case 'B':
		snd_iprintf(buffer, "miroSOUND PCM12\n");
		break;
	case 'C':
		snd_iprintf(buffer, "miroSOUND PCM20 radio\n");
		break;
	default:
		snd_iprintf(buffer, "unknown (0x%x)\n", aci->aci_product);
		break;
	}

	snd_iprintf(buffer, "  firmware: %d (0x%x)\n",
		    aci->aci_version, aci->aci_version);
	snd_iprintf(buffer, "  port    : 0x%lx-0x%lx\n", 
		    aci->aci_port, aci->aci_port+2);
	snd_iprintf(buffer, "  wss     : 0x%x\n", wss);
	snd_iprintf(buffer, "  ide     : 0x%x\n", ide);
	snd_iprintf(buffer, "  solomode: 0x%x\n", aci->aci_solomode);
	snd_iprintf(buffer, "  amp     : 0x%x\n", aci->aci_amp);
	snd_iprintf(buffer, "  preamp  : 0x%x\n", aci->aci_preamp);
}

static void snd_miro_proc_init(struct snd_card *card,
			       struct snd_miro *miro)
{
	snd_card_ro_proc_new(card, "miro", miro, snd_miro_proc_read);
}

/*
 *  Init
 */

static int snd_miro_configure(struct snd_miro *chip)
{
	unsigned char wss_base_bits;
	unsigned char irq_bits;
	unsigned char dma_bits;
	unsigned char mpu_port_bits = 0;
	unsigned char mpu_irq_bits;
	unsigned long flags;

	snd_miro_write_mask(chip, OPTi9XX_MC_REG(1), 0x80, 0x80);
	snd_miro_write_mask(chip, OPTi9XX_MC_REG(2), 0x20, 0x20); /* OPL4 */
	snd_miro_write_mask(chip, OPTi9XX_MC_REG(5), 0x02, 0x02);

	switch (chip->hardware) {
	case OPTi9XX_HW_82C924:
		snd_miro_write_mask(chip, OPTi9XX_MC_REG(6), 0x02, 0x02);
		snd_miro_write_mask(chip, OPTi9XX_MC_REG(3), 0xf0, 0xff);
		break;
	case OPTi9XX_HW_82C929:
		/* untested init commands for OPTi929 */
		snd_miro_write_mask(chip, OPTi9XX_MC_REG(4), 0x00, 0x0c);
		break;
	default:
		snd_printk(KERN_ERR "chip %d not supported\n", chip->hardware);
		return -EINVAL;
	}

	/* PnP resource says it decodes only 10 bits of address */
	switch (chip->wss_base & 0x3ff) {
	case 0x130:
		chip->wss_base = 0x530;
		wss_base_bits = 0x00;
		break;
	case 0x204:
		chip->wss_base = 0x604;
		wss_base_bits = 0x03;
		break;
	case 0x280:
		chip->wss_base = 0xe80;
		wss_base_bits = 0x01;
		break;
	case 0x340:
		chip->wss_base = 0xf40;
		wss_base_bits = 0x02;
		break;
	default:
		snd_printk(KERN_ERR "WSS port 0x%lx not valid\n", chip->wss_base);
		goto __skip_base;
	}
	snd_miro_write_mask(chip, OPTi9XX_MC_REG(1), wss_base_bits << 4, 0x30);

__skip_base:
	switch (chip->irq) {
	case 5:
		irq_bits = 0x05;
		break;
	case 7:
		irq_bits = 0x01;
		break;
	case 9:
		irq_bits = 0x02;
		break;
	case 10:
		irq_bits = 0x03;
		break;
	case 11:
		irq_bits = 0x04;
		break;
	default:
		snd_printk(KERN_ERR "WSS irq # %d not valid\n", chip->irq);
		goto __skip_resources;
	}

	switch (chip->dma1) {
	case 0:
		dma_bits = 0x01;
		break;
	case 1:
		dma_bits = 0x02;
		break;
	case 3:
		dma_bits = 0x03;
		break;
	default:
		snd_printk(KERN_ERR "WSS dma1 # %d not valid\n", chip->dma1);
		goto __skip_resources;
	}

	if (chip->dma1 == chip->dma2) {
		snd_printk(KERN_ERR "don't want to share dmas\n");
		return -EBUSY;
	}

	switch (chip->dma2) {
	case 0:
	case 1:
		break;
	default:
		snd_printk(KERN_ERR "WSS dma2 # %d not valid\n", chip->dma2);
		goto __skip_resources;
	}
	dma_bits |= 0x04;

	spin_lock_irqsave(&chip->lock, flags);
	outb(irq_bits << 3 | dma_bits, chip->wss_base);
	spin_unlock_irqrestore(&chip->lock, flags);

__skip_resources:
	if (chip->hardware > OPTi9XX_HW_82C928) {
		switch (chip->mpu_port) {
		case 0:
		case -1:
			break;
		case 0x300:
			mpu_port_bits = 0x03;
			break;
		case 0x310:
			mpu_port_bits = 0x02;
			break;
		case 0x320:
			mpu_port_bits = 0x01;
			break;
		case 0x330:
			mpu_port_bits = 0x00;
			break;
		default:
			snd_printk(KERN_ERR "MPU-401 port 0x%lx not valid\n",
				   chip->mpu_port);
			goto __skip_mpu;
		}

		switch (chip->mpu_irq) {
		case 5:
			mpu_irq_bits = 0x02;
			break;
		case 7:
			mpu_irq_bits = 0x03;
			break;
		case 9:
			mpu_irq_bits = 0x00;
			break;
		case 10:
			mpu_irq_bits = 0x01;
			break;
		default:
			snd_printk(KERN_ERR "MPU-401 irq # %d not valid\n",
				   chip->mpu_irq);
			goto __skip_mpu;
		}

		snd_miro_write_mask(chip, OPTi9XX_MC_REG(6),
			(chip->mpu_port <= 0) ? 0x00 :
				0x80 | mpu_port_bits << 5 | mpu_irq_bits << 3,
			0xf8);
	}
__skip_mpu:

	return 0;
}

static int snd_miro_opti_check(struct snd_miro *chip)
{
	unsigned char value;

	chip->res_mc_base = request_region(chip->mc_base, chip->mc_base_size,
					   "OPTi9xx MC");
	if (chip->res_mc_base == NULL)
		return -ENOMEM;

	value = snd_miro_read(chip, OPTi9XX_MC_REG(1));
	if (value != 0xff && value != inb(chip->mc_base + OPTi9XX_MC_REG(1)))
		if (value == snd_miro_read(chip, OPTi9XX_MC_REG(1)))
			return 0;

	release_and_free_resource(chip->res_mc_base);
	chip->res_mc_base = NULL;

	return -ENODEV;
}

static int snd_card_miro_detect(struct snd_card *card,
				struct snd_miro *chip)
{
	int i, err;

	for (i = OPTi9XX_HW_82C929; i <= OPTi9XX_HW_82C924; i++) {

		if ((err = snd_miro_init(chip, i)) < 0)
			return err;

		err = snd_miro_opti_check(chip);
		if (err == 0)
			return 1;
	}

	return -ENODEV;
}

static int snd_card_miro_aci_detect(struct snd_card *card,
				    struct snd_miro *miro)
{
	unsigned char regval;
	int i;
	struct snd_miro_aci *aci = &aci_device;

	miro->aci = aci;

	mutex_init(&aci->aci_mutex);

	/* get ACI port from OPTi9xx MC 4 */

	regval=inb(miro->mc_base + 4);
	aci->aci_port = (regval & 0x10) ? 0x344 : 0x354;

	miro->res_aci_port = request_region(aci->aci_port, 3, "miro aci");
	if (miro->res_aci_port == NULL) {
		snd_printk(KERN_ERR "aci i/o area 0x%lx-0x%lx already used.\n", 
			   aci->aci_port, aci->aci_port+2);
		return -ENOMEM;
	}

        /* force ACI into a known state */
	for (i = 0; i < 3; i++)
		if (snd_aci_cmd(aci, ACI_ERROR_OP, -1, -1) < 0) {
			snd_printk(KERN_ERR "can't force aci into known state.\n");
			return -ENXIO;
		}

	aci->aci_vendor = snd_aci_cmd(aci, ACI_READ_IDCODE, -1, -1);
	aci->aci_product = snd_aci_cmd(aci, ACI_READ_IDCODE, -1, -1);
	if (aci->aci_vendor < 0 || aci->aci_product < 0) {
		snd_printk(KERN_ERR "can't read aci id on 0x%lx.\n",
			   aci->aci_port);
		return -ENXIO;
	}

	aci->aci_version = snd_aci_cmd(aci, ACI_READ_VERSION, -1, -1);
	if (aci->aci_version < 0) {
		snd_printk(KERN_ERR "can't read aci version on 0x%lx.\n", 
			   aci->aci_port);
		return -ENXIO;
	}

	if (snd_aci_cmd(aci, ACI_INIT, -1, -1) < 0 ||
	    snd_aci_cmd(aci, ACI_ERROR_OP, ACI_ERROR_OP, ACI_ERROR_OP) < 0 ||
	    snd_aci_cmd(aci, ACI_ERROR_OP, ACI_ERROR_OP, ACI_ERROR_OP) < 0) {
		snd_printk(KERN_ERR "can't initialize aci.\n"); 
		return -ENXIO;
	}

	return 0;
}

static void snd_card_miro_free(struct snd_card *card)
{
	struct snd_miro *miro = card->private_data;

	release_and_free_resource(miro->res_aci_port);
	if (miro->aci)
		miro->aci->aci_port = 0;
	release_and_free_resource(miro->res_mc_base);
}

static int snd_miro_probe(struct snd_card *card)
{
	int error;
	struct snd_miro *miro = card->private_data;
	struct snd_wss *codec;
	struct snd_rawmidi *rmidi;

	if (!miro->res_mc_base) {
		miro->res_mc_base = request_region(miro->mc_base,
						miro->mc_base_size,
						"miro (OPTi9xx MC)");
		if (miro->res_mc_base == NULL) {
			snd_printk(KERN_ERR "request for OPTI9xx MC failed\n");
			return -ENOMEM;
		}
	}

	error = snd_card_miro_aci_detect(card, miro);
	if (error < 0) {
		snd_printk(KERN_ERR "unable to detect aci chip\n");
		return -ENODEV;
	}

	miro->wss_base = port;
	miro->mpu_port = mpu_port;
	miro->irq = irq;
	miro->mpu_irq = mpu_irq;
	miro->dma1 = dma1;
	miro->dma2 = dma2;

	/* init proc interface */
	snd_miro_proc_init(card, miro);

	error = snd_miro_configure(miro);
	if (error)
		return error;

	error = snd_wss_create(card, miro->wss_base + 4, -1,
			       miro->irq, miro->dma1, miro->dma2,
			       WSS_HW_DETECT, 0, &codec);
	if (error < 0)
		return error;

	error = snd_wss_pcm(codec, 0);
	if (error < 0)
		return error;

	error = snd_wss_mixer(codec);
	if (error < 0)
		return error;

	error = snd_wss_timer(codec, 0);
	if (error < 0)
		return error;

	miro->pcm = codec->pcm;

	error = snd_miro_mixer(card, miro);
	if (error < 0)
		return error;

	if (miro->aci->aci_vendor == 'm') {
		/* It looks like a miro sound card. */
		switch (miro->aci->aci_product) {
		case 'A':
			sprintf(card->shortname, 
				"miroSOUND PCM1 pro / PCM12");
			break;
		case 'B':
			sprintf(card->shortname, 
				"miroSOUND PCM12");
			break;
		case 'C':
			sprintf(card->shortname, 
				"miroSOUND PCM20 radio");
			break;
		default:
			sprintf(card->shortname, 
				"unknown miro");
			snd_printk(KERN_INFO "unknown miro aci id\n");
			break;
		}
	} else {
		snd_printk(KERN_INFO "found unsupported aci card\n");
		sprintf(card->shortname, "unknown Cardinal Technologies");
	}

	strcpy(card->driver, "miro");
	snprintf(card->longname, sizeof(card->longname),
		 "%s: OPTi%s, %s at 0x%lx, irq %d, dma %d&%d",
		 card->shortname, miro->name, codec->pcm->name,
		 miro->wss_base + 4, miro->irq, miro->dma1, miro->dma2);

	if (mpu_port <= 0 || mpu_port == SNDRV_AUTO_PORT)
		rmidi = NULL;
	else {
		error = snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
				mpu_port, 0, miro->mpu_irq, &rmidi);
		if (error < 0)
			snd_printk(KERN_WARNING "no MPU-401 device at 0x%lx?\n",
				   mpu_port);
	}

	if (fm_port > 0 && fm_port != SNDRV_AUTO_PORT) {
		struct snd_opl3 *opl3 = NULL;
		struct snd_opl4 *opl4;

		if (snd_opl4_create(card, fm_port, fm_port - 8,
				    2, &opl3, &opl4) < 0)
			snd_printk(KERN_WARNING "no OPL4 device at 0x%lx\n",
				   fm_port);
	}

	error = snd_set_aci_init_values(miro);
	if (error < 0)
                return error;

	return snd_card_register(card);
}

static int snd_miro_isa_match(struct device *devptr, unsigned int n)
{
#ifdef CONFIG_PNP
	if (snd_miro_pnp_is_probed)
		return 0;
	if (isapnp)
		return 0;
#endif
	return 1;
}

static int snd_miro_isa_probe(struct device *devptr, unsigned int n)
{
	static const long possible_ports[] = {0x530, 0xe80, 0xf40, 0x604, -1};
	static const long possible_mpu_ports[] = {0x330, 0x300, 0x310, 0x320, -1};
	static const int possible_irqs[] = {11, 9, 10, 7, -1};
	static const int possible_mpu_irqs[] = {10, 5, 9, 7, -1};
	static const int possible_dma1s[] = {3, 1, 0, -1};
	static const int possible_dma2s[][2] = { {1, -1}, {0, -1}, {-1, -1},
					   {0, -1} };

	int error;
	struct snd_miro *miro;
	struct snd_card *card;

	error = snd_card_new(devptr, index, id, THIS_MODULE,
			     sizeof(struct snd_miro), &card);
	if (error < 0)
		return error;

	card->private_free = snd_card_miro_free;
	miro = card->private_data;

	error = snd_card_miro_detect(card, miro);
	if (error < 0) {
		snd_card_free(card);
		snd_printk(KERN_ERR "unable to detect OPTi9xx chip\n");
		return -ENODEV;
	}

	if (port == SNDRV_AUTO_PORT) {
		port = snd_legacy_find_free_ioport(possible_ports, 4);
		if (port < 0) {
			snd_card_free(card);
			snd_printk(KERN_ERR "unable to find a free WSS port\n");
			return -EBUSY;
		}
	}

	if (mpu_port == SNDRV_AUTO_PORT) {
		mpu_port = snd_legacy_find_free_ioport(possible_mpu_ports, 2);
		if (mpu_port < 0) {
			snd_card_free(card);
			snd_printk(KERN_ERR
				   "unable to find a free MPU401 port\n");
			return -EBUSY;
		}
	}

	if (irq == SNDRV_AUTO_IRQ) {
		irq = snd_legacy_find_free_irq(possible_irqs);
		if (irq < 0) {
			snd_card_free(card);
			snd_printk(KERN_ERR "unable to find a free IRQ\n");
			return -EBUSY;
		}
	}
	if (mpu_irq == SNDRV_AUTO_IRQ) {
		mpu_irq = snd_legacy_find_free_irq(possible_mpu_irqs);
		if (mpu_irq < 0) {
			snd_card_free(card);
			snd_printk(KERN_ERR
				   "unable to find a free MPU401 IRQ\n");
			return -EBUSY;
		}
	}
	if (dma1 == SNDRV_AUTO_DMA) {
		dma1 = snd_legacy_find_free_dma(possible_dma1s);
		if (dma1 < 0) {
			snd_card_free(card);
			snd_printk(KERN_ERR "unable to find a free DMA1\n");
			return -EBUSY;
		}
	}
	if (dma2 == SNDRV_AUTO_DMA) {
		dma2 = snd_legacy_find_free_dma(possible_dma2s[dma1 % 4]);
		if (dma2 < 0) {
			snd_card_free(card);
			snd_printk(KERN_ERR "unable to find a free DMA2\n");
			return -EBUSY;
		}
	}

	error = snd_miro_probe(card);
	if (error < 0) {
		snd_card_free(card);
		return error;
	}

	dev_set_drvdata(devptr, card);
	return 0;
}

static int snd_miro_isa_remove(struct device *devptr,
			       unsigned int dev)
{
	snd_card_free(dev_get_drvdata(devptr));
	return 0;
}

#define DEV_NAME "miro"

static struct isa_driver snd_miro_driver = {
	.match		= snd_miro_isa_match,
	.probe		= snd_miro_isa_probe,
	.remove		= snd_miro_isa_remove,
	/* FIXME: suspend/resume */
	.driver		= {
		.name	= DEV_NAME
	},
};

#ifdef CONFIG_PNP

static int snd_card_miro_pnp(struct snd_miro *chip,
			     struct pnp_card_link *card,
			     const struct pnp_card_device_id *pid)
{
	struct pnp_dev *pdev;
	int err;
	struct pnp_dev *devmpu;
	struct pnp_dev *devmc;

	pdev = pnp_request_card_device(card, pid->devs[0].id, NULL);
	if (pdev == NULL)
		return -EBUSY;

	devmpu = pnp_request_card_device(card, pid->devs[1].id, NULL);
	if (devmpu == NULL)
		return -EBUSY;

	devmc = pnp_request_card_device(card, pid->devs[2].id, NULL);
	if (devmc == NULL)
		return -EBUSY;

	err = pnp_activate_dev(pdev);
	if (err < 0) {
		snd_printk(KERN_ERR "AUDIO pnp configure failure: %d\n", err);
		return err;
	}

	err = pnp_activate_dev(devmc);
	if (err < 0) {
		snd_printk(KERN_ERR "MC pnp configure failure: %d\n",
				    err);
		return err;
	}

	port = pnp_port_start(pdev, 1);
	fm_port = pnp_port_start(pdev, 2) + 8;

	/*
	 * The MC(0) is never accessed and the miroSOUND PCM20 card does not
	 * include it in the PnP resource range. OPTI93x include it.
	 */
	chip->mc_base = pnp_port_start(devmc, 0) - 1;
	chip->mc_base_size = pnp_port_len(devmc, 0) + 1;

	irq = pnp_irq(pdev, 0);
	dma1 = pnp_dma(pdev, 0);
	dma2 = pnp_dma(pdev, 1);

	if (mpu_port > 0) {
		err = pnp_activate_dev(devmpu);
		if (err < 0) {
			snd_printk(KERN_ERR "MPU401 pnp configure failure\n");
			mpu_port = -1;
			return err;
		}
		mpu_port = pnp_port_start(devmpu, 0);
		mpu_irq = pnp_irq(devmpu, 0);
	}
	return 0;
}

static int snd_miro_pnp_probe(struct pnp_card_link *pcard,
			      const struct pnp_card_device_id *pid)
{
	struct snd_card *card;
	int err;
	struct snd_miro *miro;

	if (snd_miro_pnp_is_probed)
		return -EBUSY;
	if (!isapnp)
		return -ENODEV;
	err = snd_card_new(&pcard->card->dev, index, id, THIS_MODULE,
			   sizeof(struct snd_miro), &card);
	if (err < 0)
		return err;

	card->private_free = snd_card_miro_free;
	miro = card->private_data;

	err = snd_card_miro_pnp(miro, pcard, pid);
	if (err) {
		snd_card_free(card);
		return err;
	}

	/* only miroSOUND PCM20 and PCM12 == OPTi924 */
	err = snd_miro_init(miro, OPTi9XX_HW_82C924);
	if (err) {
		snd_card_free(card);
		return err;
	}

	err = snd_miro_opti_check(miro);
	if (err) {
		snd_printk(KERN_ERR "OPTI chip not found\n");
		snd_card_free(card);
		return err;
	}

	err = snd_miro_probe(card);
	if (err < 0) {
		snd_card_free(card);
		return err;
	}
	pnp_set_card_drvdata(pcard, card);
	snd_miro_pnp_is_probed = 1;
	return 0;
}

static void snd_miro_pnp_remove(struct pnp_card_link *pcard)
{
	snd_card_free(pnp_get_card_drvdata(pcard));
	pnp_set_card_drvdata(pcard, NULL);
	snd_miro_pnp_is_probed = 0;
}

static struct pnp_card_driver miro_pnpc_driver = {
	.flags		= PNP_DRIVER_RES_DISABLE,
	.name		= "miro",
	.id_table	= snd_miro_pnpids,
	.probe		= snd_miro_pnp_probe,
	.remove		= snd_miro_pnp_remove,
};
#endif

static int __init alsa_card_miro_init(void)
{
#ifdef CONFIG_PNP
	pnp_register_card_driver(&miro_pnpc_driver);
	if (snd_miro_pnp_is_probed)
		return 0;
	pnp_unregister_card_driver(&miro_pnpc_driver);
#endif
	return isa_register_driver(&snd_miro_driver, 1);
}

static void __exit alsa_card_miro_exit(void)
{
	if (!snd_miro_pnp_is_probed) {
		isa_unregister_driver(&snd_miro_driver);
		return;
	}
#ifdef CONFIG_PNP
	pnp_unregister_card_driver(&miro_pnpc_driver);
#endif
}

module_init(alsa_card_miro_init)
module_exit(alsa_card_miro_exit)