summaryrefslogtreecommitdiffstats
path: root/sound/pci/azt3328.c
blob: 72bba7b2d983811bbba99a098cbfccbd5740ef20 (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
/*
 *  azt3328.c - driver for Aztech AZF3328 based soundcards (e.g. PCI168).
 *  Copyright (C) 2002 by Andreas Mohr <hw7oshyuv3001@sneakemail.com>
 *
 *  Framework borrowed from Bart Hartgers's als4000.c.
 *  Driver developed on PCI168 AP(W) version (PCI rev. 10, subsystem ID 1801),
 *  found in a Fujitsu-Siemens PC ("Cordant", aluminum case).
 *  Other versions are:
 *  PCI168 A(W), sub ID 1800
 *  PCI168 A/AP, sub ID 8000
 *  Please give me feedback in case you try my driver with one of these!!
 *
 * GPL LICENSE
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  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
 *
 * NOTES
 *  Since Aztech does not provide any chipset documentation,
 *  even on repeated request to various addresses,
 *  and the answer that was finally given was negative
 *  (and I was stupid enough to manage to get hold of a PCI168 soundcard
 *  in the first place >:-P}),
 *  I was forced to base this driver on reverse engineering
 *  (3 weeks' worth of evenings filled with driver work).
 *  (and no, I did NOT go the easy way: to pick up a PCI128 for 9 Euros)
 *
 *  The AZF3328 chip (note: AZF3328, *not* AZT3328, that's just the driver name
 *  for compatibility reasons) has the following features:
 *
 *  - builtin AC97 conformant codec (SNR over 80dB)
 *    (really AC97 compliant?? I really doubt it when looking
 *    at the mixer register layout)
 *  - builtin genuine OPL3
 *  - full duplex 16bit playback/record at independent sampling rate
 *  - MPU401 (+ legacy address support) FIXME: how to enable legacy addr??
 *  - game port (legacy address support)
 *  - built-in General DirectX timer having a 20 bits counter
 *    with 1us resolution (FIXME: where is it?)
 *  - I2S serial port for external DAC
 *  - supports 33MHz PCI spec 2.1, PCI power management 1.0, compliant with ACPI
 *  - supports hardware volume control
 *  - single chip low cost solution (128 pin QFP)
 *  - supports programmable Sub-vendor and Sub-system ID
 *    required for Microsoft's logo compliance (FIXME: where?)
 *  - PCI168 AP(W) card: power amplifier with 4 Watts/channel at 4 Ohms
 *
 *  Certain PCI versions of this card are susceptible to DMA traffic underruns
 *  in some systems (resulting in sound crackling/clicking/popping),
 *  probably because they don't have a DMA FIFO buffer or so.
 *  Overview (PCI ID/PCI subID/PCI rev.):
 *  - no DMA crackling on SiS735: 0x50DC/0x1801/16
 *  - unknown performance: 0x50DC/0x1801/10
 *  
 *  Crackling happens with VIA chipsets or, in my case, an SiS735, which is
 *  supposed to be very fast and supposed to get rid of crackling much
 *  better than a VIA, yet ironically I still get crackling, like many other
 *  people with the same chipset.
 *  Possible remedies:
 *  - plug card into a different PCI slot, preferrably one that isn't shared
 *    too much (this helps a lot, but not completely!)
 *  - get rid of PCI VGA card, use AGP instead
 *  - upgrade or downgrade BIOS
 *  - fiddle with PCI latency settings (setpci -v -s BUSID latency_timer=XX)
 *    Not too helpful.
 *  - Disable ACPI/power management/"Auto Detect RAM/PCI Clk" in BIOS
 * 
 * BUGS
 *  - when Ctrl-C'ing mpg321, the playback loops a bit
 *    (premature DMA playback reset?)
 *  - full-duplex sometimes breaks (IRQ management issues?).
 *    Once even a spontaneous REBOOT happened!!!
 * 
 * TODO
 *  - test MPU401 MIDI playback etc.
 *  - power management (CONFIG_PM). See e.g. intel8x0 or cs4281.
 *    This would be nice since the chip runs a bit hot, and it's *required*
 *    anyway for proper ACPI power management. In other words: rest
 *    assured that I *will* implement this very soon; as soon as Linux 2.5.x
 *    has power management that's bugfree enough to work properly on my desktop.
 *  - figure out what all unknown port bits are responsible for
 */

#include <sound/driver.h>
#include <asm/io.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/gameport.h>
#include <linux/moduleparam.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include <sound/rawmidi.h>
#include <sound/mpu401.h>
#include <sound/opl3.h>
#include <sound/initval.h>
#include "azt3328.h"

MODULE_AUTHOR("Andreas Mohr <hw7oshyuv3001@sneakemail.com>");
MODULE_DESCRIPTION("Aztech AZF3328 (PCI168)");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Aztech,AZF3328}}");

#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
#define SUPPORT_JOYSTICK 1
#endif

#define DEBUG_MISC	0
#define DEBUG_CALLS	0
#define DEBUG_MIXER	0
#define DEBUG_PLAY_REC	0
#define DEBUG_IO	0
#define MIXER_TESTING	0

#if DEBUG_MISC
#define snd_azf3328_dbgmisc(format, args...) printk(KERN_ERR format, ##args)
#else
#define snd_azf3328_dbgmisc(format, args...)
#endif		

#if DEBUG_CALLS
#define snd_azf3328_dbgcalls(format, args...) printk(format, ##args)
#define snd_azf3328_dbgcallenter() printk(KERN_ERR "entering %s\n", __FUNCTION__)
#define snd_azf3328_dbgcallleave() printk(KERN_ERR "leaving %s\n", __FUNCTION__)
#else
#define snd_azf3328_dbgcalls(format, args...)
#define snd_azf3328_dbgcallenter()
#define snd_azf3328_dbgcallleave()
#endif		

#if DEBUG_MIXER
#define snd_azf3328_dbgmixer(format, args...) printk(format, ##args)
#else
#define snd_azf3328_dbgmixer(format, args...)
#endif		

#if DEBUG_PLAY_REC
#define snd_azf3328_dbgplay(format, args...) printk(KERN_ERR format, ##args)
#else
#define snd_azf3328_dbgplay(format, args...)
#endif		

#if DEBUG_IO
#define snd_azf3328_dbgio(chip, where) \
	    printk(KERN_ERR "%s: IDX_IO_PLAY_FLAGS %04x, IDX_IO_PLAY_IRQMASK %04x, IDX_IO_IRQSTATUS %04x\n", where, inw(chip->codec_port+IDX_IO_PLAY_FLAGS), inw(chip->codec_port+IDX_IO_PLAY_IRQMASK), inw(chip->codec_port+IDX_IO_IRQSTATUS))
#else
#define snd_azf3328_dbgio(chip, where)
#endif
	    
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for AZF3328 soundcard.");

static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for AZF3328 soundcard.");

static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable AZF3328 soundcard.");

#ifdef SUPPORT_JOYSTICK
static int joystick[SNDRV_CARDS];
module_param_array(joystick, bool, NULL, 0444);
MODULE_PARM_DESC(joystick, "Enable joystick for AZF3328 soundcard.");
#endif

typedef struct _snd_azf3328 azf3328_t;

struct _snd_azf3328 {
	int irq;

	unsigned long codec_port;
	unsigned long io2_port;
	unsigned long mpu_port;
	unsigned long synth_port;
	unsigned long mixer_port;

#ifdef SUPPORT_JOYSTICK
	struct gameport *gameport;
#endif

	struct pci_dev *pci;
	snd_card_t *card;

	snd_pcm_t *pcm;
	snd_rawmidi_t *rmidi;
	snd_pcm_substream_t *playback_substream;
	snd_pcm_substream_t *capture_substream;
	unsigned int is_playing;
	unsigned int is_recording;

	spinlock_t reg_lock;
};

static struct pci_device_id snd_azf3328_ids[] = {
	{ 0x122D, 0x50DC, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },   /* PCI168/3328 */
	{ 0x122D, 0x80DA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },   /* 3328 */
	{ 0, }
};

MODULE_DEVICE_TABLE(pci, snd_azf3328_ids);

static inline void snd_azf3328_io2_write(azf3328_t *chip, int reg, unsigned char value)
{
	outb(value, chip->io2_port + reg);
}

static inline unsigned char snd_azf3328_io2_read(azf3328_t *chip, int reg)
{
	return inb(chip->io2_port + reg);
}

static void snd_azf3328_mixer_write(azf3328_t *chip, int reg, unsigned long value, int type)
{
	switch(type) {
	case WORD_VALUE:
		outw(value, chip->mixer_port + reg);
		break;
	case DWORD_VALUE:
		outl(value, chip->mixer_port + reg);
		break;
	case BYTE_VALUE:
		outb(value, chip->mixer_port + reg);
		break;
	}
}

static void snd_azf3328_mixer_set_mute(azf3328_t *chip, int reg, int do_mute)
{
	unsigned char oldval;

	/* the mute bit is on the *second* (i.e. right) register of a
	 * left/right channel setting */
	oldval = inb(chip->mixer_port + reg + 1);
	if (do_mute)
		oldval |= 0x80;
	else
		oldval &= ~0x80;
	outb(oldval, chip->mixer_port + reg + 1);
}

static void snd_azf3328_mixer_write_volume_gradually(azf3328_t *chip, int reg, unsigned char dst_vol_left, unsigned char dst_vol_right, int chan_sel, int delay)
{
	unsigned char curr_vol_left = 0, curr_vol_right = 0;
	int left_done = 0, right_done = 0;
	
	snd_azf3328_dbgcallenter();
	if (chan_sel & SET_CHAN_LEFT)
		curr_vol_left  = inb(chip->mixer_port + reg + 1);
	else
		left_done = 1;
	if (chan_sel & SET_CHAN_RIGHT)
		curr_vol_right = inb(chip->mixer_port + reg + 0);
	else
		right_done = 1;
	
	/* take care of muting flag (0x80) contained in left channel */
	if (curr_vol_left & 0x80)
		dst_vol_left |= 0x80;
	else
		dst_vol_left &= ~0x80;

	do
	{
		if (!left_done)
		{
			if (curr_vol_left > dst_vol_left)
				curr_vol_left--;
			else
			if (curr_vol_left < dst_vol_left)
				curr_vol_left++;
			else
			    left_done = 1;
			outb(curr_vol_left, chip->mixer_port + reg + 1);
		}
		if (!right_done)
		{
			if (curr_vol_right > dst_vol_right)
				curr_vol_right--;
			else
			if (curr_vol_right < dst_vol_right)
				curr_vol_right++;
			else
			    right_done = 1;
			/* during volume change, the right channel is crackling
			 * somewhat more than the left channel, unfortunately.
			 * This seems to be a hardware issue. */
			outb(curr_vol_right, chip->mixer_port + reg + 0);
		}
		if (delay)
			mdelay(delay);
	}
	while ((!left_done) || (!right_done));
	snd_azf3328_dbgcallleave();
}

/*
 * general mixer element
 */
typedef struct azf3328_mixer_reg {
	unsigned int reg;
	unsigned int lchan_shift, rchan_shift;
	unsigned int mask;
	unsigned int invert: 1;
	unsigned int stereo: 1;
	unsigned int enum_c: 4;
} azf3328_mixer_reg_t;

#define COMPOSE_MIXER_REG(reg,lchan_shift,rchan_shift,mask,invert,stereo,enum_c) \
 ((reg) | (lchan_shift << 8) | (rchan_shift << 12) | (mask << 16) | (invert << 24) | (stereo << 25) | (enum_c << 26))

static void snd_azf3328_mixer_reg_decode(azf3328_mixer_reg_t *r, unsigned long val)
{
	r->reg = val & 0xff;
	r->lchan_shift = (val >> 8) & 0x0f;
	r->rchan_shift = (val >> 12) & 0x0f;
	r->mask = (val >> 16) & 0xff;
	r->invert = (val >> 24) & 1;
	r->stereo = (val >> 25) & 1;
	r->enum_c = (val >> 26) & 0x0f;
}

/*
 * mixer switches/volumes
 */

#define AZF3328_MIXER_SWITCH(xname, reg, shift, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  .info = snd_azf3328_info_mixer, \
  .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
  .private_value = COMPOSE_MIXER_REG(reg, shift, 0, 0x1, invert, 0, 0), \
}

#define AZF3328_MIXER_VOL_STEREO(xname, reg, mask, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  .info = snd_azf3328_info_mixer, \
  .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
  .private_value = COMPOSE_MIXER_REG(reg, 8, 0, mask, invert, 1, 0), \
}

#define AZF3328_MIXER_VOL_MONO(xname, reg, mask, is_right_chan) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  .info = snd_azf3328_info_mixer, \
  .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
  .private_value = COMPOSE_MIXER_REG(reg, is_right_chan ? 0 : 8, 0, mask, 1, 0, 0), \
}

#define AZF3328_MIXER_VOL_SPECIAL(xname, reg, mask, shift, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  .info = snd_azf3328_info_mixer, \
  .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
  .private_value = COMPOSE_MIXER_REG(reg, shift, 0, mask, invert, 0, 0), \
}

#define AZF3328_MIXER_ENUM(xname, reg, enum_c, shift) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  .info = snd_azf3328_info_mixer_enum, \
  .get = snd_azf3328_get_mixer_enum, .put = snd_azf3328_put_mixer_enum, \
  .private_value = COMPOSE_MIXER_REG(reg, shift, 0, 0, 0, 0, enum_c), \
}

static int snd_azf3328_info_mixer(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
	azf3328_mixer_reg_t reg;

	snd_azf3328_dbgcallenter();
	snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
	uinfo->type = reg.mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = reg.stereo + 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = reg.mask;
	snd_azf3328_dbgcallleave();
	return 0;
}

static int snd_azf3328_get_mixer(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	azf3328_t *chip = snd_kcontrol_chip(kcontrol);
	azf3328_mixer_reg_t reg;
	unsigned int oreg, val;

	snd_azf3328_dbgcallenter();
	snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);

	oreg = inw(chip->mixer_port + reg.reg);
	val = (oreg >> reg.lchan_shift) & reg.mask;
	if (reg.invert)
		val = reg.mask - val;
	ucontrol->value.integer.value[0] = val;
	if (reg.stereo) {
		val = (oreg >> reg.rchan_shift) & reg.mask;
		if (reg.invert)
			val = reg.mask - val;
		ucontrol->value.integer.value[1] = val;
	}
	snd_azf3328_dbgmixer("get: %02x is %04x -> vol %02lx|%02lx (shift %02d|%02d, mask %02x, inv. %d, stereo %d)\n", reg.reg, oreg, ucontrol->value.integer.value[0], ucontrol->value.integer.value[1], reg.lchan_shift, reg.rchan_shift, reg.mask, reg.invert, reg.stereo);
	snd_azf3328_dbgcallleave();
	return 0;
}

static int snd_azf3328_put_mixer(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	azf3328_t *chip = snd_kcontrol_chip(kcontrol);
	azf3328_mixer_reg_t reg;
	unsigned int oreg, nreg, val;

	snd_azf3328_dbgcallenter();
	snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
	oreg = inw(chip->mixer_port + reg.reg);
	val = ucontrol->value.integer.value[0] & reg.mask;
	if (reg.invert)
		val = reg.mask - val;
	nreg = oreg & ~(reg.mask << reg.lchan_shift);
	nreg |= (val << reg.lchan_shift);
	if (reg.stereo) {
		val = ucontrol->value.integer.value[1] & reg.mask;
		if (reg.invert)
			val = reg.mask - val;
		nreg &= ~(reg.mask << reg.rchan_shift);
		nreg |= (val << reg.rchan_shift);
	}
	if (reg.mask >= 0x07) /* it's a volume control, so better take care */
		snd_azf3328_mixer_write_volume_gradually(chip, reg.reg, nreg >> 8, nreg & 0xff, SET_CHAN_LEFT|SET_CHAN_RIGHT, 0); /* just set both channels, doesn't matter */
	else
        	outw(nreg, chip->mixer_port + reg.reg);

	snd_azf3328_dbgmixer("put: %02x to %02lx|%02lx, oreg %04x; shift %02d|%02d -> nreg %04x; after: %04x\n", reg.reg, ucontrol->value.integer.value[0], ucontrol->value.integer.value[1], oreg, reg.lchan_shift, reg.rchan_shift, nreg, inw(chip->mixer_port + reg.reg));
	snd_azf3328_dbgcallleave();
	return (nreg != oreg);
}

static int snd_azf3328_info_mixer_enum(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	azf3328_mixer_reg_t reg;
	static char *texts1[2] = { "ModemOut1", "ModemOut2" };
	static char *texts2[2] = { "MonoSelectSource1", "MonoSelectSource2" };
        static char *texts3[8] = {
                "Mic", "CD", "Video", "Aux", "Line",
                "Mix", "Mix Mono", "Phone"
        };

	snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
        uinfo->count = (reg.reg == IDX_MIXER_REC_SELECT) ? 2 : 1;
        uinfo->value.enumerated.items = reg.enum_c;
        if (uinfo->value.enumerated.item > reg.enum_c - 1U)
                uinfo->value.enumerated.item = reg.enum_c - 1U;
	if (reg.reg == IDX_MIXER_ADVCTL2)
	{
		if (reg.lchan_shift == 8) /* modem out sel */
			strcpy(uinfo->value.enumerated.name, texts1[uinfo->value.enumerated.item]);
		else /* mono sel source */
			strcpy(uinfo->value.enumerated.name, texts2[uinfo->value.enumerated.item]);
	}
	else
        	strcpy(uinfo->value.enumerated.name, texts3[uinfo->value.enumerated.item]
);
        return 0;
}

static int snd_azf3328_get_mixer_enum(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	azf3328_mixer_reg_t reg;
        azf3328_t *chip = snd_kcontrol_chip(kcontrol);
        unsigned short val;
        
	snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
	val = inw(chip->mixer_port + reg.reg);
	if (reg.reg == IDX_MIXER_REC_SELECT)
	{
        	ucontrol->value.enumerated.item[0] = (val >> 8) & (reg.enum_c - 1);
        	ucontrol->value.enumerated.item[1] = (val >> 0) & (reg.enum_c - 1);
	}
	else
        	ucontrol->value.enumerated.item[0] = (val >> reg.lchan_shift) & (reg.enum_c - 1);
	snd_azf3328_dbgmixer("get_enum: %02x is %04x -> %d|%d (shift %02d, enum_c %d)\n", reg.reg, val, ucontrol->value.enumerated.item[0], ucontrol->value.enumerated.item[1], reg.lchan_shift, reg.enum_c);
        return 0;
}

static int snd_azf3328_put_mixer_enum(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	azf3328_mixer_reg_t reg;
        azf3328_t *chip = snd_kcontrol_chip(kcontrol);
	unsigned int oreg, nreg, val;
        
	snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
	oreg = inw(chip->mixer_port + reg.reg);
	val = oreg;
	if (reg.reg == IDX_MIXER_REC_SELECT)
	{
        	if (ucontrol->value.enumerated.item[0] > reg.enum_c - 1U ||
            	ucontrol->value.enumerated.item[1] > reg.enum_c - 1U)
                	return -EINVAL;
        	val = (ucontrol->value.enumerated.item[0] << 8) |
        	      (ucontrol->value.enumerated.item[1] << 0);
	}
	else
	{
        	if (ucontrol->value.enumerated.item[0] > reg.enum_c - 1U)
                	return -EINVAL;
		val &= ~((reg.enum_c - 1) << reg.lchan_shift);
        	val |= (ucontrol->value.enumerated.item[0] << reg.lchan_shift);
	}
	outw(val, chip->mixer_port + reg.reg);
	nreg = val;

	snd_azf3328_dbgmixer("put_enum: %02x to %04x, oreg %04x\n", reg.reg, val, oreg);
	return (nreg != oreg);
}

static snd_kcontrol_new_t snd_azf3328_mixer_controls[] __devinitdata = {
	AZF3328_MIXER_SWITCH("Master Playback Switch", IDX_MIXER_PLAY_MASTER, 15, 1),
	AZF3328_MIXER_VOL_STEREO("Master Playback Volume", IDX_MIXER_PLAY_MASTER, 0x1f, 1),
	AZF3328_MIXER_SWITCH("Wave Playback Switch", IDX_MIXER_WAVEOUT, 15, 1),
	AZF3328_MIXER_VOL_STEREO("Wave Playback Volume", IDX_MIXER_WAVEOUT, 0x1f, 1),
	AZF3328_MIXER_SWITCH("Wave Playback 3D Bypass", IDX_MIXER_ADVCTL2, 7, 1),
	AZF3328_MIXER_SWITCH("FM Playback Switch", IDX_MIXER_FMSYNTH, 15, 1),
	AZF3328_MIXER_VOL_STEREO("FM Playback Volume", IDX_MIXER_FMSYNTH, 0x1f, 1),
	AZF3328_MIXER_SWITCH("CD Playback Switch", IDX_MIXER_CDAUDIO, 15, 1),
	AZF3328_MIXER_VOL_STEREO("CD Playback Volume", IDX_MIXER_CDAUDIO, 0x1f, 1),
	AZF3328_MIXER_SWITCH("Capture Switch", IDX_MIXER_REC_VOLUME, 15, 1),
	AZF3328_MIXER_VOL_STEREO("Capture Volume", IDX_MIXER_REC_VOLUME, 0x0f, 0),
	AZF3328_MIXER_ENUM("Capture Source", IDX_MIXER_REC_SELECT, 8, 0),
	AZF3328_MIXER_SWITCH("Mic Playback Switch", IDX_MIXER_MIC, 15, 1),
	AZF3328_MIXER_VOL_MONO("Mic Playback Volume", IDX_MIXER_MIC, 0x1f, 1),
	AZF3328_MIXER_SWITCH("Mic Boost (+20dB)", IDX_MIXER_MIC, 6, 0),
	AZF3328_MIXER_SWITCH("Line Playback Switch", IDX_MIXER_LINEIN, 15, 1),
	AZF3328_MIXER_VOL_STEREO("Line Playback Volume", IDX_MIXER_LINEIN, 0x1f, 1),
	AZF3328_MIXER_SWITCH("PCBeep Playback Switch", IDX_MIXER_PCBEEP, 15, 1),
	AZF3328_MIXER_VOL_SPECIAL("PCBeep Playback Volume", IDX_MIXER_PCBEEP, 0x0f, 1, 1),
	AZF3328_MIXER_SWITCH("Video Playback Switch", IDX_MIXER_VIDEO, 15, 1),
	AZF3328_MIXER_VOL_STEREO("Video Playback Volume", IDX_MIXER_VIDEO, 0x1f, 1),
	AZF3328_MIXER_SWITCH("Aux Playback Switch", IDX_MIXER_AUX, 15, 1),
	AZF3328_MIXER_VOL_STEREO("Aux Playback Volume", IDX_MIXER_AUX, 0x1f, 1),
	AZF3328_MIXER_SWITCH("Modem Playback Switch", IDX_MIXER_MODEMOUT, 15, 1),
	AZF3328_MIXER_VOL_MONO("Modem Playback Volume", IDX_MIXER_MODEMOUT, 0x1f, 1),
	AZF3328_MIXER_SWITCH("Modem Capture Switch", IDX_MIXER_MODEMIN, 15, 1),
	AZF3328_MIXER_VOL_MONO("Modem Capture Volume", IDX_MIXER_MODEMIN, 0x1f, 1),
	AZF3328_MIXER_ENUM("Modem Out Select", IDX_MIXER_ADVCTL2, 2, 8),
	AZF3328_MIXER_ENUM("Mono Select Source", IDX_MIXER_ADVCTL2, 2, 9),
	AZF3328_MIXER_VOL_SPECIAL("Tone Control - Treble", IDX_MIXER_BASSTREBLE, 0x07, 1, 0),
	AZF3328_MIXER_VOL_SPECIAL("Tone Control - Bass", IDX_MIXER_BASSTREBLE, 0x07, 9, 0),
	AZF3328_MIXER_SWITCH("3D Control - Toggle", IDX_MIXER_ADVCTL2, 13, 0),
	AZF3328_MIXER_VOL_SPECIAL("3D Control - Volume", IDX_MIXER_ADVCTL1, 0x07, 1, 0), /* "3D Width" */
	AZF3328_MIXER_VOL_SPECIAL("3D Control - Space", IDX_MIXER_ADVCTL1, 0x03, 8, 0), /* "Hifi 3D" */
#if MIXER_TESTING
	AZF3328_MIXER_SWITCH("0", IDX_MIXER_ADVCTL2, 0, 0),
	AZF3328_MIXER_SWITCH("1", IDX_MIXER_ADVCTL2, 1, 0),
	AZF3328_MIXER_SWITCH("2", IDX_MIXER_ADVCTL2, 2, 0),
	AZF3328_MIXER_SWITCH("3", IDX_MIXER_ADVCTL2, 3, 0),
	AZF3328_MIXER_SWITCH("4", IDX_MIXER_ADVCTL2, 4, 0),
	AZF3328_MIXER_SWITCH("5", IDX_MIXER_ADVCTL2, 5, 0),
	AZF3328_MIXER_SWITCH("6", IDX_MIXER_ADVCTL2, 6, 0),
	AZF3328_MIXER_SWITCH("7", IDX_MIXER_ADVCTL2, 7, 0),
	AZF3328_MIXER_SWITCH("8", IDX_MIXER_ADVCTL2, 8, 0),
	AZF3328_MIXER_SWITCH("9", IDX_MIXER_ADVCTL2, 9, 0),
	AZF3328_MIXER_SWITCH("10", IDX_MIXER_ADVCTL2, 10, 0),
	AZF3328_MIXER_SWITCH("11", IDX_MIXER_ADVCTL2, 11, 0),
	AZF3328_MIXER_SWITCH("12", IDX_MIXER_ADVCTL2, 12, 0),
	AZF3328_MIXER_SWITCH("13", IDX_MIXER_ADVCTL2, 13, 0),
	AZF3328_MIXER_SWITCH("14", IDX_MIXER_ADVCTL2, 14, 0),
	AZF3328_MIXER_SWITCH("15", IDX_MIXER_ADVCTL2, 15, 0),
#endif
};

#define AZF3328_INIT_VALUES (sizeof(snd_azf3328_init_values)/sizeof(unsigned int)/2)

static unsigned int snd_azf3328_init_values[][2] = {
        { IDX_MIXER_PLAY_MASTER,	MIXER_MUTE_MASK|0x1f1f },
        { IDX_MIXER_MODEMOUT,		MIXER_MUTE_MASK|0x1f1f },
	{ IDX_MIXER_BASSTREBLE,		0x0000 },
	{ IDX_MIXER_PCBEEP,		MIXER_MUTE_MASK|0x1f1f },
	{ IDX_MIXER_MODEMIN,		MIXER_MUTE_MASK|0x1f1f },
	{ IDX_MIXER_MIC,		MIXER_MUTE_MASK|0x001f },
	{ IDX_MIXER_LINEIN,		MIXER_MUTE_MASK|0x1f1f },
	{ IDX_MIXER_CDAUDIO,		MIXER_MUTE_MASK|0x1f1f },
	{ IDX_MIXER_VIDEO,		MIXER_MUTE_MASK|0x1f1f },
	{ IDX_MIXER_AUX,		MIXER_MUTE_MASK|0x1f1f },
        { IDX_MIXER_WAVEOUT,		MIXER_MUTE_MASK|0x1f1f },
        { IDX_MIXER_FMSYNTH,		MIXER_MUTE_MASK|0x1f1f },
        { IDX_MIXER_REC_VOLUME,		MIXER_MUTE_MASK|0x0707 },
};

static int __devinit snd_azf3328_mixer_new(azf3328_t *chip)
{
	snd_card_t *card;
	snd_kcontrol_new_t *sw;
	unsigned int idx;
	int err;

	snd_azf3328_dbgcallenter();
	snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);

	card = chip->card;

	/* mixer reset */
	snd_azf3328_mixer_write(chip, IDX_MIXER_RESET, 0x0, WORD_VALUE);

	/* mute and zero volume channels */
	for (idx = 0; idx < AZF3328_INIT_VALUES; idx++) {
		snd_azf3328_mixer_write(chip, snd_azf3328_init_values[idx][0], snd_azf3328_init_values[idx][1], WORD_VALUE);
	}
	
	/* add mixer controls */
	sw = snd_azf3328_mixer_controls;
	for (idx = 0; idx < ARRAY_SIZE(snd_azf3328_mixer_controls); idx++, sw++) {
		if ((err = snd_ctl_add(chip->card, snd_ctl_new1(sw, chip))) < 0)
			return err;
	}
	snd_component_add(card, "AZF3328 mixer");
	strcpy(card->mixername, "AZF3328 mixer");

	snd_azf3328_dbgcallleave();
	return 0;
}

static int snd_azf3328_hw_params(snd_pcm_substream_t * substream,
				 snd_pcm_hw_params_t * hw_params)
{
	int res;
	snd_azf3328_dbgcallenter();
	res = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
	snd_azf3328_dbgcallleave();
	return res;
}

static int snd_azf3328_hw_free(snd_pcm_substream_t * substream)
{
	snd_azf3328_dbgcallenter();
	snd_pcm_lib_free_pages(substream);
	snd_azf3328_dbgcallleave();
	return 0;
}

static void snd_azf3328_setfmt(azf3328_t *chip,
			       unsigned int reg,
			       unsigned int bitrate,
			       unsigned int format_width,
			       unsigned int channels
)
{
	unsigned int val = 0xff00;
	unsigned long flags;

	snd_azf3328_dbgcallenter();
	switch (bitrate) {
	case  5512: val |= 0x0d; break; /* the AZF3328 names it "5510" for some strange reason */
	case  6620: val |= 0x0b; break;
	case  8000: val |= 0x00; break;
	case  9600: val |= 0x08; break;
	case 11025: val |= 0x01; break;
	case 16000: val |= 0x02; break;
	case 22050: val |= 0x03; break;
	case 32000: val |= 0x04; break;
	case 44100: val |= 0x05; break;
	case 48000: val |= 0x06; break;
	case 64000: val |= 0x07; break;
	default:
		snd_printk("unknown bitrate %d, assuming 44.1kHz!\n", bitrate);
		val |= 0x05; /* 44100 */
		break;
	}
	/* val = 0xff07; 3m27.993s (65301Hz; -> 64000Hz???) */
	/* val = 0xff09; 17m15.098s (13123,478Hz; -> 12000Hz???) */
	/* val = 0xff0a; 47m30.599s (4764,891Hz; -> 4800Hz???) */
	/* val = 0xff0c; 57m0.510s (4010,263Hz; -> 4000Hz???) */
	/* val = 0xff05; 5m11.556s (... -> 44100Hz) */
	/* val = 0xff03; 10m21.529s (21872,463Hz; -> 22050Hz???) */
	/* val = 0xff0f; 20m41.883s (10937,993Hz; -> 11025Hz???) */
	/* val = 0xff0d; 41m23.135s (5523,600Hz; -> 5512Hz???) */
	/* val = 0xff0e; 28m30.777s (8017Hz; -> 8000Hz???) */
	if (channels == 2)
		val |= SOUNDFORMAT_FLAG_2CHANNELS;

	if (format_width == 16)
		val |= SOUNDFORMAT_FLAG_16BIT;

	spin_lock_irqsave(&chip->reg_lock, flags);
	
	/* set bitrate/format */
	outw(val, chip->codec_port+reg);
	
	/* changing the bitrate/format settings switches off the
	 * audio output with an annoying click in case of 8/16bit format change
	 * (maybe shutting down DAC/ADC?), thus immediately
	 * do some tweaking to reenable it and get rid of the clicking
	 * (FIXME: yes, it works, but what exactly am I doing here?? :)
	 * FIXME: does this have some side effects for full-duplex
	 * or other dramatic side effects? */
	if (reg == IDX_IO_PLAY_SOUNDFORMAT) /* only do it for playback */
		outw(inw(chip->codec_port + IDX_IO_PLAY_FLAGS)|DMA_PLAY_SOMETHING1|DMA_PLAY_SOMETHING2|SOMETHING_ALMOST_ALWAYS_SET|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE, chip->codec_port + IDX_IO_PLAY_FLAGS);

	spin_unlock_irqrestore(&chip->reg_lock, flags);
	snd_azf3328_dbgcallleave();
}

static void snd_azf3328_setdmaa(azf3328_t *chip,
				long unsigned int addr,
                                unsigned int count,
                                unsigned int size,
				int do_recording)
{
	long unsigned int addr1;
	long unsigned int addr2;
	unsigned int count1;
	unsigned int count2;
	unsigned long flags;
	int reg_offs = do_recording ? 0x20 : 0x00;

	snd_azf3328_dbgcallenter();
	/* AZF3328 uses a two buffer pointer DMA playback approach */
	if (!chip->is_playing)
	{
		addr1 = addr;
		addr2 = addr+(size/2);
		count1 = (size/2)-1;
		count2 = (size/2)-1;
#if DEBUG_PLAY_REC
		snd_azf3328_dbgplay("setting dma: buf1 %08lx[%d], buf2 %08lx[%d]\n", addr1, count1, addr2, count2);
#endif
		spin_lock_irqsave(&chip->reg_lock, flags);
		outl(addr1, chip->codec_port+reg_offs+IDX_IO_PLAY_DMA_START_1);
		outl(addr2, chip->codec_port+reg_offs+IDX_IO_PLAY_DMA_START_2);
		outw(count1, chip->codec_port+reg_offs+IDX_IO_PLAY_DMA_LEN_1);
		outw(count2, chip->codec_port+reg_offs+IDX_IO_PLAY_DMA_LEN_2);
		spin_unlock_irqrestore(&chip->reg_lock, flags);
	}
	snd_azf3328_dbgcallleave();
}

static int snd_azf3328_playback_prepare(snd_pcm_substream_t *substream)
{
#if 0
	azf3328_t *chip = snd_pcm_substream_chip(substream);
	snd_pcm_runtime_t *runtime = substream->runtime;
        unsigned int size = snd_pcm_lib_buffer_bytes(substream);
	unsigned int count = snd_pcm_lib_period_bytes(substream);
#endif

	snd_azf3328_dbgcallenter();
#if 0
	snd_azf3328_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT, runtime->rate, snd_pcm_format_width(runtime->format), runtime->channels);
	snd_azf3328_setdmaa(chip, runtime->dma_addr, count, size, 0);
#endif
	snd_azf3328_dbgcallleave();
	return 0;
}

static int snd_azf3328_capture_prepare(snd_pcm_substream_t * substream)
{
#if 0
	azf3328_t *chip = snd_pcm_substream_chip(substream);
	snd_pcm_runtime_t *runtime = substream->runtime;
        unsigned int size = snd_pcm_lib_buffer_bytes(substream);
	unsigned int count = snd_pcm_lib_period_bytes(substream);
#endif

	snd_azf3328_dbgcallenter();
#if 0
	snd_azf3328_setfmt(chip, IDX_IO_REC_SOUNDFORMAT, runtime->rate, snd_pcm_format_width(runtime->format), runtime->channels);
	snd_azf3328_setdmaa(chip, runtime->dma_addr, count, size, 1);
#endif
	snd_azf3328_dbgcallleave();
	return 0;
}

static int snd_azf3328_playback_trigger(snd_pcm_substream_t * substream, int cmd)
{
	azf3328_t *chip = snd_pcm_substream_chip(substream);
	snd_pcm_runtime_t *runtime = substream->runtime;
	int result = 0;
	unsigned int status1;

	snd_azf3328_dbgcalls("snd_azf3328_playback_trigger cmd %d\n", cmd);
	switch (cmd) {
	case SNDRV_PCM_TRIGGER_START:

		snd_azf3328_dbgio(chip, "trigger1");

		/* mute WaveOut */
		snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1);

		snd_azf3328_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT, runtime->rate, snd_pcm_format_width(runtime->format), runtime->channels);

		spin_lock(&chip->reg_lock);
		/* stop playback */
		status1 = inw(chip->codec_port+IDX_IO_PLAY_FLAGS);
		status1 &= ~DMA_RESUME;
		outw(status1, chip->codec_port+IDX_IO_PLAY_FLAGS);
	    
		/* FIXME: clear interrupts or what??? */
		outw(0xffff, chip->codec_port+IDX_IO_PLAY_IRQMASK);
		spin_unlock(&chip->reg_lock);

		snd_azf3328_setdmaa(chip, runtime->dma_addr, snd_pcm_lib_period_bytes(substream), snd_pcm_lib_buffer_bytes(substream), 0);

		spin_lock(&chip->reg_lock);
#ifdef WIN9X
		/* FIXME: enable playback/recording??? */
		status1 |= DMA_PLAY_SOMETHING1 | DMA_PLAY_SOMETHING2;
		outw(status1, chip->codec_port+IDX_IO_PLAY_FLAGS);

		/* start playback again */
		/* FIXME: what is this value (0x0010)??? */
		status1 |= DMA_RESUME | DMA_EPILOGUE_SOMETHING;
		outw(status1, chip->codec_port+IDX_IO_PLAY_FLAGS);
#else /* NT4 */
		outw(0x00, chip->codec_port+IDX_IO_PLAY_FLAGS);
		outw(DMA_PLAY_SOMETHING1, chip->codec_port+IDX_IO_PLAY_FLAGS);
		outw(DMA_PLAY_SOMETHING1|DMA_PLAY_SOMETHING2, chip->codec_port+IDX_IO_PLAY_FLAGS);
		outw(DMA_RESUME|SOMETHING_ALMOST_ALWAYS_SET|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE, chip->codec_port+IDX_IO_PLAY_FLAGS);
#endif
		spin_unlock(&chip->reg_lock);

		/* now unmute WaveOut */
		snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 0);

		snd_azf3328_dbgio(chip, "trigger2");
		chip->is_playing = 1;
		break;
        case SNDRV_PCM_TRIGGER_STOP:
		/* mute WaveOut */
		snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1);

		spin_lock(&chip->reg_lock);
		/* stop playback */
		status1 = inw(chip->codec_port+IDX_IO_PLAY_FLAGS);

		status1 &= ~DMA_RESUME;
		outw(status1, chip->codec_port+IDX_IO_PLAY_FLAGS);

		status1 |= DMA_PLAY_SOMETHING1;
		outw(status1, chip->codec_port+IDX_IO_PLAY_FLAGS);

		status1 &= ~DMA_PLAY_SOMETHING1;
		outw(status1, chip->codec_port+IDX_IO_PLAY_FLAGS);
		spin_unlock(&chip->reg_lock);
	    
		/* now unmute WaveOut */
		snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 0);
		chip->is_playing = 0;
		break;
        case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
		snd_printk("FIXME: SNDRV_PCM_TRIGGER_PAUSE_PUSH NIY!\n");
                break;
        case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
		snd_printk("FIXME: SNDRV_PCM_TRIGGER_PAUSE_RELEASE NIY!\n");
                break;
        default:
                return -EINVAL;
	}
	
	snd_azf3328_dbgcallleave();
	return result;
}

/* this is just analogous to playback; I'm not quite sure whether recording
 * should actually be triggered like that */
static int snd_azf3328_capture_trigger(snd_pcm_substream_t * substream, int cmd)
{
	azf3328_t *chip = snd_pcm_substream_chip(substream);
	snd_pcm_runtime_t *runtime = substream->runtime;
	int result = 0;
	unsigned int status1;

	snd_azf3328_dbgcalls("snd_azf3328_capture_trigger cmd %d\n", cmd);
        switch (cmd) {
        case SNDRV_PCM_TRIGGER_START:

		snd_azf3328_dbgio(chip, "trigger1");

		snd_azf3328_setfmt(chip, IDX_IO_REC_SOUNDFORMAT, runtime->rate, snd_pcm_format_width(runtime->format), runtime->channels);

		spin_lock(&chip->reg_lock);
		/* stop recording */
		status1 = inw(chip->codec_port+IDX_IO_REC_FLAGS);
		status1 &= ~DMA_RESUME;
		outw(status1, chip->codec_port+IDX_IO_REC_FLAGS);
	    
		/* FIXME: clear interrupts or what??? */
		outw(0xffff, chip->codec_port+IDX_IO_REC_IRQMASK);
		spin_unlock(&chip->reg_lock);

		snd_azf3328_setdmaa(chip, runtime->dma_addr, snd_pcm_lib_period_bytes(substream), snd_pcm_lib_buffer_bytes(substream), 1);

		spin_lock(&chip->reg_lock);
#ifdef WIN9X
		/* FIXME: enable playback/recording??? */
		status1 |= DMA_PLAY_SOMETHING1 | DMA_PLAY_SOMETHING2;
		outw(status1, chip->codec_port+IDX_IO_REC_FLAGS);

		/* start playback again */
		/* FIXME: what is this value (0x0010)??? */
		status1 |= DMA_RESUME | DMA_EPILOGUE_SOMETHING;
		outw(status1, chip->codec_port+IDX_IO_REC_FLAGS);
#else
		outw(0x00, chip->codec_port+IDX_IO_REC_FLAGS);
		outw(DMA_PLAY_SOMETHING1, chip->codec_port+IDX_IO_REC_FLAGS);
		outw(DMA_PLAY_SOMETHING1|DMA_PLAY_SOMETHING2, chip->codec_port+IDX_IO_REC_FLAGS);
		outw(DMA_RESUME|SOMETHING_ALMOST_ALWAYS_SET|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE, chip->codec_port+IDX_IO_REC_FLAGS);
#endif
		spin_unlock(&chip->reg_lock);

		snd_azf3328_dbgio(chip, "trigger2");
		chip->is_playing = 1;
		break;
        case SNDRV_PCM_TRIGGER_STOP:
		spin_lock(&chip->reg_lock);
		/* stop recording */
		status1 = inw(chip->codec_port+IDX_IO_REC_FLAGS);

		status1 &= ~DMA_RESUME;
		outw(status1, chip->codec_port+IDX_IO_REC_FLAGS);

		status1 |= DMA_PLAY_SOMETHING1;
		outw(status1, chip->codec_port+IDX_IO_REC_FLAGS);

		status1 &= ~DMA_PLAY_SOMETHING1;
		outw(status1, chip->codec_port+IDX_IO_REC_FLAGS);
		spin_unlock(&chip->reg_lock);
	    
		chip->is_playing = 0;
		break;
        case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
		snd_printk("FIXME: SNDRV_PCM_TRIGGER_PAUSE_PUSH NIY!\n");
                break;
        case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
		snd_printk("FIXME: SNDRV_PCM_TRIGGER_PAUSE_RELEASE NIY!\n");
                break;
        default:
                return -EINVAL;
	}
	
	snd_azf3328_dbgcallleave();
	return result;
}

static snd_pcm_uframes_t snd_azf3328_playback_pointer(snd_pcm_substream_t * substream)
{
	azf3328_t *chip = snd_pcm_substream_chip(substream);
	unsigned long bufptr, playptr;
	unsigned long result;
	snd_pcm_uframes_t frmres;

#ifdef QUERY_HARDWARE
	bufptr = inl(chip->codec_port+IDX_IO_PLAY_DMA_START_1);
#else
	bufptr = substream->runtime->dma_addr;
#endif
	playptr = inl(chip->codec_port+IDX_IO_PLAY_DMA_CURRPOS);

	result = playptr - bufptr;
	frmres = bytes_to_frames( substream->runtime, result );
	snd_azf3328_dbgplay("result %lx, playptr %lx (base %x), frames %ld\n", result, playptr, substream->runtime->dma_addr, frmres);
	return frmres;
}

static snd_pcm_uframes_t snd_azf3328_capture_pointer(snd_pcm_substream_t * substream)
{
	azf3328_t *chip = snd_pcm_substream_chip(substream);
	unsigned long bufptr, recptr;
	unsigned long result;
	snd_pcm_uframes_t frmres;

#ifdef QUERY_HARDWARE
	bufptr = inl(chip->codec_port+IDX_IO_REC_DMA_START_1);
#else
	bufptr = substream->runtime->dma_addr;
#endif
	recptr = inl(chip->codec_port+IDX_IO_REC_DMA_CURRPOS);

	result = recptr - bufptr;
	frmres = bytes_to_frames( substream->runtime, result );
	snd_azf3328_dbgplay("result %lx, rec ptr %lx (base %x), frames %ld\n", result, recptr, substream->runtime->dma_addr, frmres);
	return frmres;
}

static irqreturn_t snd_azf3328_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
	azf3328_t *chip = dev_id;
	unsigned int status, which;
	static unsigned long count;

	status  = inw(chip->codec_port+IDX_IO_IRQSTATUS);

        /* fast path out, to ease interrupt sharing */
	if (!(status & (IRQ_PLAYBACK|IRQ_RECORDING|IRQ_MPU401|IRQ_SOMEIRQ)))
		return IRQ_NONE; /* must be interrupt for another device */

	snd_azf3328_dbgplay("Interrupt %ld!\nIDX_IO_PLAY_FLAGS %04x, IDX_IO_PLAY_IRQMASK %04x, IDX_IO_IRQSTATUS %04x\n", count, inw(chip->codec_port+IDX_IO_PLAY_FLAGS), inw(chip->codec_port+IDX_IO_PLAY_IRQMASK), inw(chip->codec_port+IDX_IO_IRQSTATUS));
		
	if (status & IRQ_PLAYBACK)
	{
		spin_lock(&chip->reg_lock);
		which = inw(chip->codec_port+IDX_IO_PLAY_IRQMASK);
		if (which & IRQ_FINISHED_PLAYBUF_1)
			/* ack IRQ */
			outw(which | IRQ_FINISHED_PLAYBUF_1, chip->codec_port+IDX_IO_PLAY_IRQMASK);
		if (which & IRQ_FINISHED_PLAYBUF_2)
			/* ack IRQ */
			outw(which | IRQ_FINISHED_PLAYBUF_2, chip->codec_port+IDX_IO_PLAY_IRQMASK);
		if (which & IRQ_PLAY_SOMETHING)
		{
			snd_azf3328_dbgplay("azt3328: unknown play IRQ type occurred, please report!\n");
		}
		if (chip->pcm && chip->playback_substream)
		{
			snd_azf3328_dbgplay("which %x, playptr %lx\n", which, inl(chip->codec_port+IDX_IO_PLAY_DMA_CURRPOS));
			snd_pcm_period_elapsed(chip->playback_substream);
			snd_azf3328_dbgplay("period done, playptr %lx.\n", inl(chip->codec_port+IDX_IO_PLAY_DMA_CURRPOS));
		}
		else
			snd_azf3328_dbgplay("azt3328: ouch, irq handler problem!\n");
               	spin_unlock(&chip->reg_lock);
	}
	if (status & IRQ_RECORDING)
	{
                spin_lock(&chip->reg_lock);
		which = inw(chip->codec_port+IDX_IO_REC_IRQMASK);
		if (which & IRQ_FINISHED_RECBUF_1)
			/* ack interrupt */
			outw(which | IRQ_FINISHED_RECBUF_1, chip->codec_port+IDX_IO_REC_IRQMASK);
		if (which & IRQ_FINISHED_RECBUF_2)
			/* ack interrupt */
			outw(which | IRQ_FINISHED_RECBUF_2, chip->codec_port+IDX_IO_REC_IRQMASK);
		if (which & IRQ_REC_SOMETHING)
		{
			snd_azf3328_dbgplay("azt3328: unknown rec IRQ type occurred, please report!\n");
		}
		if (chip->pcm && chip->capture_substream)
		{
			snd_azf3328_dbgplay("which %x, recptr %lx\n", which, inl(chip->codec_port+IDX_IO_REC_DMA_CURRPOS));
			spin_unlock(&chip->reg_lock);
			snd_pcm_period_elapsed(chip->capture_substream);
			spin_lock(&chip->reg_lock);
			snd_azf3328_dbgplay("period done, recptr %lx.\n", inl(chip->codec_port+IDX_IO_REC_DMA_CURRPOS));
		}
               	spin_unlock(&chip->reg_lock);
	}
	if (status & IRQ_MPU401)
		snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
	if (status & IRQ_SOMEIRQ)
		snd_azf3328_dbgplay("azt3328: unknown IRQ type occurred, please report!\n");
	count++;
	return IRQ_HANDLED;
}

/*****************************************************************/

static snd_pcm_hardware_t snd_azf3328_playback =
{
	/* FIXME!! Correct? */
	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
				 SNDRV_PCM_INFO_MMAP_VALID),
	.formats =		SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
				SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE,
	.rates =		SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_64000 | SNDRV_PCM_RATE_KNOT,
	.rate_min =		5512,
	.rate_max =		64000,
	.channels_min =		1,
	.channels_max =		2,
	.buffer_bytes_max =	65536,
	.period_bytes_min =	64,
	.period_bytes_max =	65536,
	.periods_min =		1,
	.periods_max =		1024,
	/* FIXME: maybe that card actually has a FIFO?
	 * Hmm, it seems newer revisions do have one, but we still don't know
	 * its size... */
	.fifo_size =		0,
};

static snd_pcm_hardware_t snd_azf3328_capture =
{
	/* FIXME */
	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
				 SNDRV_PCM_INFO_MMAP_VALID),
	.formats =		SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
				SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE,
	.rates =		SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_64000 | SNDRV_PCM_RATE_KNOT,
	.rate_min =		5512,
	.rate_max =		64000,
	.channels_min =		1,
	.channels_max =		2,
	.buffer_bytes_max =	65536,
	.period_bytes_min =	64,
	.period_bytes_max =	65536,
	.periods_min =		1,
	.periods_max =		1024,
	.fifo_size =		0,
};


static unsigned int snd_azf3328_fixed_rates[] = {
	5512, 6620, 8000, 9600, 11025, 16000, 22050, 32000, 44100, 48000, 64000
};
static snd_pcm_hw_constraint_list_t snd_azf3328_hw_constraints_rates = {
	.count = ARRAY_SIZE(snd_azf3328_fixed_rates), 
	.list = snd_azf3328_fixed_rates,
	.mask = 0,
};

/*****************************************************************/

static int snd_azf3328_playback_open(snd_pcm_substream_t * substream)
{
	azf3328_t *chip = snd_pcm_substream_chip(substream);
	snd_pcm_runtime_t *runtime = substream->runtime;

	snd_azf3328_dbgcallenter();
	chip->playback_substream = substream;
	runtime->hw = snd_azf3328_playback;
	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
				   &snd_azf3328_hw_constraints_rates);
	snd_azf3328_dbgcallleave();
	return 0;
}

static int snd_azf3328_capture_open(snd_pcm_substream_t * substream)
{
	azf3328_t *chip = snd_pcm_substream_chip(substream);
	snd_pcm_runtime_t *runtime = substream->runtime;

	snd_azf3328_dbgcallenter();
	chip->capture_substream = substream;
	runtime->hw = snd_azf3328_capture;
	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
				   &snd_azf3328_hw_constraints_rates);
	snd_azf3328_dbgcallleave();
	return 0;
}

static int snd_azf3328_playback_close(snd_pcm_substream_t * substream)
{
	azf3328_t *chip = snd_pcm_substream_chip(substream);

	snd_azf3328_dbgcallenter();

	chip->playback_substream = NULL;
	snd_azf3328_dbgcallleave();
	return 0;
}

static int snd_azf3328_capture_close(snd_pcm_substream_t * substream)
{
	azf3328_t *chip = snd_pcm_substream_chip(substream);

	snd_azf3328_dbgcallenter();
	chip->capture_substream = NULL;
	snd_azf3328_dbgcallleave();
	return 0;
}

/******************************************************************/

static snd_pcm_ops_t snd_azf3328_playback_ops = {
	.open =		snd_azf3328_playback_open,
	.close =	snd_azf3328_playback_close,
	.ioctl =	snd_pcm_lib_ioctl,
	.hw_params =	snd_azf3328_hw_params,
	.hw_free =	snd_azf3328_hw_free,
	.prepare =	snd_azf3328_playback_prepare,
	.trigger =	snd_azf3328_playback_trigger,
	.pointer =	snd_azf3328_playback_pointer
};

static snd_pcm_ops_t snd_azf3328_capture_ops = {
	.open =		snd_azf3328_capture_open,
	.close =	snd_azf3328_capture_close,
	.ioctl =	snd_pcm_lib_ioctl,
	.hw_params =	snd_azf3328_hw_params,
	.hw_free =	snd_azf3328_hw_free,
	.prepare =	snd_azf3328_capture_prepare,
	.trigger =	snd_azf3328_capture_trigger,
	.pointer =	snd_azf3328_capture_pointer
};

static void snd_azf3328_pcm_free(snd_pcm_t *pcm)
{
	azf3328_t *chip = pcm->private_data;
	chip->pcm = NULL;
	snd_pcm_lib_preallocate_free_for_all(pcm);
}

static int __devinit snd_azf3328_pcm(azf3328_t *chip, int device)
{
	snd_pcm_t *pcm;
	int err;

	snd_azf3328_dbgcallenter();
	if ((err = snd_pcm_new(chip->card, "AZF3328 DSP", device, 1, 1, &pcm)) < 0)
		return err;
	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_azf3328_playback_ops);
	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_azf3328_capture_ops);

	pcm->private_data = chip;
	pcm->private_free = snd_azf3328_pcm_free;
	pcm->info_flags = 0;
	strcpy(pcm->name, chip->card->shortname);
	chip->pcm = pcm;

	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
					      snd_dma_pci_data(chip->pci), 64*1024, 64*1024);

	snd_azf3328_dbgcallleave();
	return 0;
}

/******************************************************************/

#ifdef SUPPORT_JOYSTICK
static int __devinit snd_azf3328_config_joystick(azf3328_t *chip, int dev)
{
	struct gameport *gp;
	struct resource *r;

	if (!joystick[dev])
		return -ENODEV;

	if (!(r = request_region(0x200, 8, "AZF3328 gameport"))) {
		printk(KERN_WARNING "azt3328: cannot reserve joystick ports\n");
		return -EBUSY;
	}

	chip->gameport = gp = gameport_allocate_port();
	if (!gp) {
		printk(KERN_ERR "azt3328: cannot allocate memory for gameport\n");
		release_resource(r);
		kfree_nocheck(r);
		return -ENOMEM;
	}

	gameport_set_name(gp, "AZF3328 Gameport");
	gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
	gameport_set_dev_parent(gp, &chip->pci->dev);
	gp->io = 0x200;
	gameport_set_port_data(gp, r);

	snd_azf3328_io2_write(chip, IDX_IO2_LEGACY_ADDR,
			      snd_azf3328_io2_read(chip, IDX_IO2_LEGACY_ADDR) | LEGACY_JOY);

	gameport_register_port(chip->gameport);

	return 0;
}

static void snd_azf3328_free_joystick(azf3328_t *chip)
{
	if (chip->gameport) {
		struct resource *r = gameport_get_port_data(chip->gameport);

		gameport_unregister_port(chip->gameport);
		chip->gameport = NULL;
		/* disable gameport */
		snd_azf3328_io2_write(chip, IDX_IO2_LEGACY_ADDR,
				      snd_azf3328_io2_read(chip, IDX_IO2_LEGACY_ADDR) & ~LEGACY_JOY);
		release_resource(r);
		kfree_nocheck(r);
	}
}
#else
static inline int snd_azf3328_config_joystick(azf3328_t *chip, int dev) { return -ENOSYS; }
static inline void snd_azf3328_free_joystick(azf3328_t *chip) { }
#endif

/******************************************************************/

static int snd_azf3328_free(azf3328_t *chip)
{
        if (chip->irq < 0)
                goto __end_hw;

	/* reset (close) mixer */
	snd_azf3328_mixer_set_mute(chip, IDX_MIXER_PLAY_MASTER, 1); /* first mute master volume */
	snd_azf3328_mixer_write(chip, IDX_MIXER_RESET, 0x0, WORD_VALUE);

        /* interrupt setup - mask everything */
	/* FIXME */

        synchronize_irq(chip->irq);
      __end_hw:
	snd_azf3328_free_joystick(chip);
        if (chip->irq >= 0)
		free_irq(chip->irq, (void *)chip);
	pci_release_regions(chip->pci);
	pci_disable_device(chip->pci);

        kfree(chip);
        return 0;
}

static int snd_azf3328_dev_free(snd_device_t *device)
{
	azf3328_t *chip = device->device_data;
	return snd_azf3328_free(chip);
}

#if 0
/* check whether a bit can be modified */
static void snd_azf3328_test_bit(unsigned int reg, int bit)
{
	unsigned char val, valoff, valon;

	val = inb(reg);

	outb(val & ~(1 << bit), reg);
	valoff = inb(reg);

	outb(val|(1 << bit), reg);
	valon = inb(reg);
	
	outb(val, reg);

	printk(KERN_ERR "reg %04x bit %d: %02x %02x %02x\n", reg, bit, val, valoff, valon);
}
#endif

static int __devinit snd_azf3328_create(snd_card_t * card,
                                         struct pci_dev *pci,
                                         unsigned long device_type,
                                         azf3328_t ** rchip)
{
	azf3328_t *chip;
	int err;
	static snd_device_ops_t ops = {
		.dev_free =     snd_azf3328_dev_free,
	};
	u16 tmp;

	*rchip = NULL;

	if ((err = pci_enable_device(pci)) < 0)
		return err;

	chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
	if (chip == NULL) {
		pci_disable_device(pci);
		return -ENOMEM;
	}
	spin_lock_init(&chip->reg_lock);
	chip->card = card;
	chip->pci = pci;
	chip->irq = -1;

	/* check if we can restrict PCI DMA transfers to 24 bits */
	if (pci_set_dma_mask(pci, 0x00ffffff) < 0 ||
	    pci_set_consistent_dma_mask(pci, 0x00ffffff) < 0) {
		snd_printk("architecture does not support 24bit PCI busmaster DMA\n");
		pci_disable_device(pci);
		return -ENXIO;
	}

	if ((err = pci_request_regions(pci, "Aztech AZF3328")) < 0) {
		kfree(chip);
		pci_disable_device(pci);
		return err;
	}

	chip->codec_port = pci_resource_start(pci, 0);
	chip->io2_port = pci_resource_start(pci, 1);
	chip->mpu_port = pci_resource_start(pci, 2);
	chip->synth_port = pci_resource_start(pci, 3);
	chip->mixer_port = pci_resource_start(pci, 4);

	if (request_irq(pci->irq, snd_azf3328_interrupt, SA_INTERRUPT|SA_SHIRQ, card->shortname, (void *)chip)) {
		snd_printk("unable to grab IRQ %d\n", pci->irq);
		snd_azf3328_free(chip);
		return -EBUSY;
	}
	chip->irq = pci->irq;
	pci_set_master(pci);
	synchronize_irq(chip->irq);

	snd_azf3328_dbgmisc("codec_port 0x%lx, io2_port 0x%lx, mpu_port 0x%lx, synth_port 0x%lx, mixer_port 0x%lx, irq %d\n", chip->codec_port, chip->io2_port, chip->mpu_port, chip->synth_port, chip->mixer_port, chip->irq);

	snd_azf3328_dbgmisc("io2 %02x %02x %02x %02x %02x %02x\n", snd_azf3328_io2_read(chip, 0), snd_azf3328_io2_read(chip, 1), snd_azf3328_io2_read(chip, 2), snd_azf3328_io2_read(chip, 3), snd_azf3328_io2_read(chip, 4), snd_azf3328_io2_read(chip, 5));

	for (tmp=0; tmp <= 0x01; tmp += 1)
		snd_azf3328_dbgmisc("0x%02x: opl 0x%04x, mpu300 0x%04x, mpu310 0x%04x, mpu320 0x%04x, mpu330 0x%04x\n", tmp, inb(0x388 + tmp), inb(0x300 + tmp), inb(0x310 + tmp), inb(0x320 + tmp), inb(0x330 + tmp));

	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
		snd_azf3328_free(chip);
		return err;
	}

	/* create mixer interface & switches */
	if ((err = snd_azf3328_mixer_new(chip)) < 0)
		return err;

#if 0
	/* set very low bitrate to reduce noise and power consumption? */
	snd_azf3328_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT, 5512, 8, 1);
#endif

	/* standard chip init stuff */
	spin_lock_irq(&chip->reg_lock);
	outb(DMA_PLAY_SOMETHING2|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE, chip->codec_port + IDX_IO_PLAY_FLAGS);
	outb(DMA_PLAY_SOMETHING2|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE, chip->codec_port + IDX_IO_SOMETHING_FLAGS);
	outb(DMA_PLAY_SOMETHING2|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE, chip->codec_port + IDX_IO_REC_FLAGS);
	outb(0x0, chip->codec_port + IDX_IO_IRQ63H);

	spin_unlock_irq(&chip->reg_lock);

	snd_card_set_dev(card, &pci->dev);

	*rchip = chip;
	return 0;
}

static int __devinit snd_azf3328_probe(struct pci_dev *pci,
					  const struct pci_device_id *pci_id)
{
	static int dev;
	snd_card_t *card;
	azf3328_t *chip;
	opl3_t *opl3;
	int err;

	snd_azf3328_dbgcallenter();
	if (dev >= SNDRV_CARDS)
		return -ENODEV;
	if (!enable[dev]) {
		dev++;
		return -ENOENT;
	}

	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0 );
	if (card == NULL)
		return -ENOMEM;

	strcpy(card->driver, "AZF3328");
	strcpy(card->shortname, "Aztech AZF3328 (PCI168)");

        if ((err = snd_azf3328_create(card, pci, pci_id->driver_data, &chip)) < 0) {
		snd_card_free(card);
		return err;
	}

	if ((err = snd_mpu401_uart_new( card, 0, MPU401_HW_MPU401,
				        chip->mpu_port, 1, pci->irq, 0,
				        &chip->rmidi)) < 0) {
		snd_printk("azf3328: no MPU-401 device at 0x%lx?\n", chip->mpu_port);
		snd_card_free(card);
		return err;
	}

	if ((err = snd_azf3328_pcm(chip, 0)) < 0) {
		snd_card_free(card);
		return err;
	}

	if (snd_opl3_create(card, chip->synth_port, chip->synth_port+2,
			    OPL3_HW_AUTO, 1, &opl3) < 0) {
		snd_printk("azf3328: no OPL3 device at 0x%lx-0x%lx?\n",
			   chip->synth_port, chip->synth_port+2 );
	} else {
		if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
			snd_card_free(card);
			return err;
		}
	}

	snd_azf3328_dbgio(chip, "create");

	sprintf(card->longname, "%s at 0x%lx, irq %i",
		card->shortname, chip->codec_port, chip->irq);

	if ((err = snd_card_register(card)) < 0) {
		snd_card_free(card);
		return err;
	}

#ifdef MODULE
	printk(
"azt3328: Experimental driver for Aztech AZF3328-based soundcards such as PCI168.\n"
"azt3328: ZERO support from Aztech: you might think hard about future purchase.\n"
"azt3328: Feel free to contact hw7oshyuv3001@sneakemail.com for bug reports etc.!\n");
#endif

	if (snd_azf3328_config_joystick(chip, dev) < 0)
		snd_azf3328_io2_write(chip, IDX_IO2_LEGACY_ADDR,
			      snd_azf3328_io2_read(chip, IDX_IO2_LEGACY_ADDR) & ~LEGACY_JOY);

	pci_set_drvdata(pci, card);
	dev++;

	snd_azf3328_dbgcallleave();
	return 0;
}

static void __devexit snd_azf3328_remove(struct pci_dev *pci)
{
	snd_azf3328_dbgcallenter();
	snd_card_free(pci_get_drvdata(pci));
	pci_set_drvdata(pci, NULL);
	snd_azf3328_dbgcallleave();
}

static struct pci_driver driver = {
	.name = "AZF3328",
	.id_table = snd_azf3328_ids,
	.probe = snd_azf3328_probe,
	.remove = __devexit_p(snd_azf3328_remove),
};

static int __init alsa_card_azf3328_init(void)
{
	int err;
	snd_azf3328_dbgcallenter();
	err = pci_register_driver(&driver);
	snd_azf3328_dbgcallleave();
	return err;
}

static void __exit alsa_card_azf3328_exit(void)
{
	snd_azf3328_dbgcallenter();
	pci_unregister_driver(&driver);
	snd_azf3328_dbgcallleave();
}

module_init(alsa_card_azf3328_init)
module_exit(alsa_card_azf3328_exit)