summaryrefslogtreecommitdiffstats
path: root/sound/oss/sscape.c
blob: 50ca646294502a4e1d5dbf84d757684bfcc5e77f (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
/*
 * sound/sscape.c
 *
 * Low level driver for Ensoniq SoundScape
 *
 *
 * Copyright (C) by Hannu Savolainen 1993-1997
 *
 * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
 * Version 2 (June 1991). See the "COPYING" file distributed with this software
 * for more info.
 *
 *
 * Thomas Sailer   	: ioctl code reworked (vmalloc/vfree removed)
 * Sergey Smitienko	: ensoniq p'n'p support
 * Christoph Hellwig	: adapted to module_init/module_exit
 * Bartlomiej Zolnierkiewicz : added __init to attach_sscape()
 * Chris Rankin		: Specify that this module owns the coprocessor
 * Arnaldo C. de Melo	: added missing restore_flags in sscape_pnp_upload_file
 */

#include <linux/init.h>
#include <linux/module.h>

#include "sound_config.h"
#include "sound_firmware.h"

#include <linux/types.h>
#include <linux/errno.h>
#include <linux/signal.h>
#include <linux/fcntl.h>
#include <linux/ctype.h>
#include <linux/stddef.h>
#include <linux/kmod.h>
#include <asm/dma.h>
#include <asm/io.h>
#include <linux/wait.h>
#include <linux/slab.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/proc_fs.h>
#include <linux/spinlock.h>

#include "coproc.h"

#include "ad1848.h"
#include "mpu401.h"

/*
 *    I/O ports
 */
#define MIDI_DATA       0
#define MIDI_CTRL       1
#define HOST_CTRL       2
#define TX_READY	0x02
#define RX_READY	0x01
#define HOST_DATA       3
#define ODIE_ADDR       4
#define ODIE_DATA       5

/*
 *    Indirect registers
 */

#define GA_INTSTAT_REG	0
#define GA_INTENA_REG	1
#define GA_DMAA_REG	2
#define GA_DMAB_REG	3
#define GA_INTCFG_REG	4
#define GA_DMACFG_REG	5
#define GA_CDCFG_REG	6
#define GA_SMCFGA_REG	7
#define GA_SMCFGB_REG	8
#define GA_HMCTL_REG	9

/*
 * DMA channel identifiers (A and B)
 */

#define SSCAPE_DMA_A	0
#define SSCAPE_DMA_B	1

#define PORT(name)	(devc->base+name)

/*
 * Host commands recognized by the OBP microcode
 */
 
#define CMD_GEN_HOST_ACK	0x80
#define CMD_GEN_MPU_ACK		0x81
#define CMD_GET_BOARD_TYPE	0x82
#define CMD_SET_CONTROL		0x88	/* Old firmware only */
#define CMD_GET_CONTROL		0x89	/* Old firmware only */
#define CTL_MASTER_VOL		0
#define CTL_MIC_MODE		2
#define CTL_SYNTH_VOL		4
#define CTL_WAVE_VOL		7
#define CMD_SET_EXTMIDI		0x8a
#define CMD_GET_EXTMIDI		0x8b
#define CMD_SET_MT32		0x8c
#define CMD_GET_MT32		0x8d

#define CMD_ACK			0x80

#define	IC_ODIE			1
#define	IC_OPUS			2

typedef struct sscape_info
{
	int	base, irq, dma;
	
	int	codec, codec_irq;	/* required to setup pnp cards*/
	int	codec_type;
	int	ic_type;
	char*	raw_buf;
	unsigned long	raw_buf_phys;
	int	buffsize;		/* -------------------------- */
	spinlock_t lock;
	int	ok;	/* Properly detected */
	int	failed;
	int	dma_allocated;
	int	codec_audiodev;
	int	opened;
	int	*osp;
	int	my_audiodev;
} sscape_info;

static struct sscape_info adev_info = {
	0
};

static struct sscape_info *devc = &adev_info;
static int sscape_mididev = -1;

/* Some older cards have assigned interrupt bits differently than new ones */
static char valid_interrupts_old[] = {
	9, 7, 5, 15
};

static char valid_interrupts_new[] = {
	9, 5, 7, 10
};

static char *valid_interrupts = valid_interrupts_new;

/*
 *	See the bottom of the driver. This can be set by spea =0/1.
 */
 
#ifdef REVEAL_SPEA
static char old_hardware = 1;
#else
static char old_hardware;
#endif

static void sleep(unsigned howlong)
{
	current->state = TASK_INTERRUPTIBLE;
	schedule_timeout(howlong);
}

static unsigned char sscape_read(struct sscape_info *devc, int reg)
{
	unsigned long flags;
	unsigned char val;

	spin_lock_irqsave(&devc->lock,flags);
	outb(reg, PORT(ODIE_ADDR));
	val = inb(PORT(ODIE_DATA));
	spin_unlock_irqrestore(&devc->lock,flags);
	return val;
}

static void __sscape_write(int reg, int data)
{
	outb(reg, PORT(ODIE_ADDR));
	outb(data, PORT(ODIE_DATA));
}

static void sscape_write(struct sscape_info *devc, int reg, int data)
{
	unsigned long flags;

	spin_lock_irqsave(&devc->lock,flags);
	__sscape_write(reg, data);
	spin_unlock_irqrestore(&devc->lock,flags);
}

static unsigned char sscape_pnp_read_codec(sscape_info* devc, unsigned char reg)
{
	unsigned char res;
	unsigned long flags;

	spin_lock_irqsave(&devc->lock,flags);
	outb( reg, devc -> codec);
	res = inb (devc -> codec + 1);
	spin_unlock_irqrestore(&devc->lock,flags);
	return res;

}

static void sscape_pnp_write_codec(sscape_info* devc, unsigned char reg, unsigned char data)
{
	unsigned long flags;
	
	spin_lock_irqsave(&devc->lock,flags);
	outb( reg, devc -> codec);
	outb( data, devc -> codec + 1);
	spin_unlock_irqrestore(&devc->lock,flags);
}

static void host_open(struct sscape_info *devc)
{
	outb((0x00), PORT(HOST_CTRL));	/* Put the board to the host mode */
}

static void host_close(struct sscape_info *devc)
{
	outb((0x03), PORT(HOST_CTRL));	/* Put the board to the MIDI mode */
}

static int host_write(struct sscape_info *devc, unsigned char *data, int count)
{
	unsigned long flags;
	int i, timeout_val;

	spin_lock_irqsave(&devc->lock,flags);
	/*
	 * Send the command and data bytes
	 */

	for (i = 0; i < count; i++)
	{
		for (timeout_val = 10000; timeout_val > 0; timeout_val--)
			if (inb(PORT(HOST_CTRL)) & TX_READY)
				break;

		if (timeout_val <= 0)
		{
				spin_unlock_irqrestore(&devc->lock,flags);
			    return 0;
		}
		outb(data[i], PORT(HOST_DATA));
	}
	spin_unlock_irqrestore(&devc->lock,flags);
	return 1;
}

static int host_read(struct sscape_info *devc)
{
	unsigned long flags;
	int timeout_val;
	unsigned char data;

	spin_lock_irqsave(&devc->lock,flags);
	/*
	 * Read a byte
	 */

	for (timeout_val = 10000; timeout_val > 0; timeout_val--)
		if (inb(PORT(HOST_CTRL)) & RX_READY)
			break;

	if (timeout_val <= 0)
	{
		spin_unlock_irqrestore(&devc->lock,flags);
		return -1;
	}
	data = inb(PORT(HOST_DATA));
	spin_unlock_irqrestore(&devc->lock,flags);
	return data;
}

#if 0 /* unused */
static int host_command1(struct sscape_info *devc, int cmd)
{
	unsigned char buf[10];
	buf[0] = (unsigned char) (cmd & 0xff);
	return host_write(devc, buf, 1);
}
#endif /* unused */


static int host_command2(struct sscape_info *devc, int cmd, int parm1)
{
	unsigned char buf[10];

	buf[0] = (unsigned char) (cmd & 0xff);
	buf[1] = (unsigned char) (parm1 & 0xff);

	return host_write(devc, buf, 2);
}

static int host_command3(struct sscape_info *devc, int cmd, int parm1, int parm2)
{
	unsigned char buf[10];

	buf[0] = (unsigned char) (cmd & 0xff);
	buf[1] = (unsigned char) (parm1 & 0xff);
	buf[2] = (unsigned char) (parm2 & 0xff);
	return host_write(devc, buf, 3);
}

static void set_mt32(struct sscape_info *devc, int value)
{
	host_open(devc);
	host_command2(devc, CMD_SET_MT32, value ? 1 : 0);
	if (host_read(devc) != CMD_ACK)
	{
		/* printk( "SNDSCAPE: Setting MT32 mode failed\n"); */
	}
	host_close(devc);
}

static void set_control(struct sscape_info *devc, int ctrl, int value)
{
	host_open(devc);
	host_command3(devc, CMD_SET_CONTROL, ctrl, value);
	if (host_read(devc) != CMD_ACK)
	{
		/* printk( "SNDSCAPE: Setting control (%d) failed\n",  ctrl); */
	}
	host_close(devc);
}

static void do_dma(struct sscape_info *devc, int dma_chan, unsigned long buf, int blk_size, int mode)
{
	unsigned char temp;

	if (dma_chan != SSCAPE_DMA_A)
	{
		printk(KERN_WARNING "soundscape: Tried to use DMA channel  != A. Why?\n");
		return;
	}
	audio_devs[devc->codec_audiodev]->flags &= ~DMA_AUTOMODE;
	DMAbuf_start_dma(devc->codec_audiodev, buf, blk_size, mode);
	audio_devs[devc->codec_audiodev]->flags |= DMA_AUTOMODE;

	temp = devc->dma << 4;	/* Setup DMA channel select bits */
	if (devc->dma <= 3)
		temp |= 0x80;	/* 8 bit DMA channel */

	temp |= 1;		/* Trigger DMA */
	sscape_write(devc, GA_DMAA_REG, temp);
	temp &= 0xfe;		/* Clear DMA trigger */
	sscape_write(devc, GA_DMAA_REG, temp);
}

static int verify_mpu(struct sscape_info *devc)
{
	/*
	 * The SoundScape board could be in three modes (MPU, 8250 and host).
	 * If the card is not in the MPU mode, enabling the MPU driver will
	 * cause infinite loop (the driver believes that there is always some
	 * received data in the buffer.
	 *
	 * Detect this by looking if there are more than 10 received MIDI bytes
	 * (0x00) in the buffer.
	 */

	int i;

	for (i = 0; i < 10; i++)
	{
		if (inb(devc->base + HOST_CTRL) & 0x80)
			return 1;

		if (inb(devc->base) != 0x00)
			return 1;
	}
	printk(KERN_WARNING "SoundScape: The device is not in the MPU-401 mode\n");
	return 0;
}

static int sscape_coproc_open(void *dev_info, int sub_device)
{
	if (sub_device == COPR_MIDI)
	{
		set_mt32(devc, 0);
		if (!verify_mpu(devc))
			return -EIO;
	}
	return 0;
}

static void sscape_coproc_close(void *dev_info, int sub_device)
{
	struct sscape_info *devc = dev_info;
	unsigned long   flags;

	spin_lock_irqsave(&devc->lock,flags);
	if (devc->dma_allocated)
	{
		__sscape_write(GA_DMAA_REG, 0x20);	/* DMA channel disabled */
		devc->dma_allocated = 0;
	}
	spin_unlock_irqrestore(&devc->lock,flags);
	return;
}

static void sscape_coproc_reset(void *dev_info)
{
}

static int sscape_download_boot(struct sscape_info *devc, unsigned char *block, int size, int flag)
{
	unsigned long flags;
	unsigned char temp;
	volatile int done, timeout_val;
	static unsigned char codec_dma_bits;

	if (flag & CPF_FIRST)
	{
		/*
		 * First block. Have to allocate DMA and to reset the board
		 * before continuing.
		 */

		spin_lock_irqsave(&devc->lock,flags);
		codec_dma_bits = sscape_read(devc, GA_CDCFG_REG);

		if (devc->dma_allocated == 0)
			devc->dma_allocated = 1;

		spin_unlock_irqrestore(&devc->lock,flags);

		sscape_write(devc, GA_HMCTL_REG, 
			(temp = sscape_read(devc, GA_HMCTL_REG)) & 0x3f);	/*Reset */

		for (timeout_val = 10000; timeout_val > 0; timeout_val--)
			sscape_read(devc, GA_HMCTL_REG);	/* Delay */

		/* Take board out of reset */
		sscape_write(devc, GA_HMCTL_REG,
			(temp = sscape_read(devc, GA_HMCTL_REG)) | 0x80);
	}
	/*
	 * Transfer one code block using DMA
	 */
	if (audio_devs[devc->codec_audiodev]->dmap_out->raw_buf == NULL)
	{
		printk(KERN_WARNING "soundscape: DMA buffer not available\n");
		return 0;
	}
	memcpy(audio_devs[devc->codec_audiodev]->dmap_out->raw_buf, block, size);

	spin_lock_irqsave(&devc->lock,flags);
	
	/******** INTERRUPTS DISABLED NOW ********/
	
	do_dma(devc, SSCAPE_DMA_A,
	       audio_devs[devc->codec_audiodev]->dmap_out->raw_buf_phys,
	       size, DMA_MODE_WRITE);

	/*
	 * Wait until transfer completes.
	 */
	
	done = 0;
	timeout_val = 30;
	while (!done && timeout_val-- > 0)
	{
		int resid;

		if (HZ / 50)
			sleep(HZ / 50);
		clear_dma_ff(devc->dma);
		if ((resid = get_dma_residue(devc->dma)) == 0)
			done = 1;
	}

	spin_unlock_irqrestore(&devc->lock,flags);
	if (!done)
		return 0;

	if (flag & CPF_LAST)
	{
		/*
		 * Take the board out of reset
		 */
		outb((0x00), PORT(HOST_CTRL));
		outb((0x00), PORT(MIDI_CTRL));

		temp = sscape_read(devc, GA_HMCTL_REG);
		temp |= 0x40;
		sscape_write(devc, GA_HMCTL_REG, temp);	/* Kickstart the board */

		/*
		 * Wait until the ODB wakes up
		 */
		spin_lock_irqsave(&devc->lock,flags);
		done = 0;
		timeout_val = 5 * HZ;
		while (!done && timeout_val-- > 0)
		{
			unsigned char x;
			
			sleep(1);
			x = inb(PORT(HOST_DATA));
			if (x == 0xff || x == 0xfe)		/* OBP startup acknowledge */
			{
				DDB(printk("Soundscape: Acknowledge = %x\n", x));
				done = 1;
			}
		}
		sscape_write(devc, GA_CDCFG_REG, codec_dma_bits);

		spin_unlock_irqrestore(&devc->lock,flags);
		if (!done)
		{
			printk(KERN_ERR "soundscape: The OBP didn't respond after code download\n");
			return 0;
		}
		spin_lock_irqsave(&devc->lock,flags);
		done = 0;
		timeout_val = 5 * HZ;
		while (!done && timeout_val-- > 0)
		{
			sleep(1);
			if (inb(PORT(HOST_DATA)) == 0xfe)	/* Host startup acknowledge */
				done = 1;
		}
		spin_unlock_irqrestore(&devc->lock,flags);
		if (!done)
		{
			printk(KERN_ERR "soundscape: OBP Initialization failed.\n");
			return 0;
		}
		printk(KERN_INFO "SoundScape board initialized OK\n");
		set_control(devc, CTL_MASTER_VOL, 100);
		set_control(devc, CTL_SYNTH_VOL, 100);

#ifdef SSCAPE_DEBUG3
		/*
		 * Temporary debugging aid. Print contents of the registers after
		 * downloading the code.
		 */
		{
			int i;

			for (i = 0; i < 13; i++)
				printk("I%d = %02x (new value)\n", i, sscape_read(devc, i));
		}
#endif

	}
	return 1;
}

static int download_boot_block(void *dev_info, copr_buffer * buf)
{
	if (buf->len <= 0 || buf->len > sizeof(buf->data))
		return -EINVAL;

	if (!sscape_download_boot(devc, buf->data, buf->len, buf->flags))
	{
		printk(KERN_ERR "soundscape: Unable to load microcode block to the OBP.\n");
		return -EIO;
	}
	return 0;
}

static int sscape_coproc_ioctl(void *dev_info, unsigned int cmd, void __user *arg, int local)
{
	copr_buffer *buf;
	int err;

	switch (cmd) 
	{
		case SNDCTL_COPR_RESET:
			sscape_coproc_reset(dev_info);
			return 0;

		case SNDCTL_COPR_LOAD:
			buf = (copr_buffer *) vmalloc(sizeof(copr_buffer));
			if (buf == NULL)
				return -ENOSPC;
			if (copy_from_user(buf, arg, sizeof(copr_buffer))) 
			{
				vfree(buf);
				return -EFAULT;
			}
			err = download_boot_block(dev_info, buf);
			vfree(buf);
			return err;
		
		default:
			return -EINVAL;
	}
}

static coproc_operations sscape_coproc_operations =
{
	"SoundScape M68K",
	THIS_MODULE,
	sscape_coproc_open,
	sscape_coproc_close,
	sscape_coproc_ioctl,
	sscape_coproc_reset,
	&adev_info
};

static struct resource *sscape_ports;
static int sscape_is_pnp;

static void __init attach_sscape(struct address_info *hw_config)
{
#ifndef SSCAPE_REGS
	/*
	 * Config register values for Spea/V7 Media FX and Ensoniq S-2000.
	 * These values are card
	 * dependent. If you have another SoundScape based card, you have to
	 * find the correct values. Do the following:
	 *  - Compile this driver with SSCAPE_DEBUG1 defined.
	 *  - Shut down and power off your machine.
	 *  - Boot with DOS so that the SSINIT.EXE program is run.
	 *  - Warm boot to {Linux|SYSV|BSD} and write down the lines displayed
	 *    when detecting the SoundScape.
	 *  - Modify the following list to use the values printed during boot.
	 *    Undefine the SSCAPE_DEBUG1
	 */
#define SSCAPE_REGS { \
/* I0 */	0x00, \
/* I1 */	0xf0, /* Note! Ignored. Set always to 0xf0 */ \
/* I2 */	0x20, /* Note! Ignored. Set always to 0x20 */ \
/* I3 */	0x20, /* Note! Ignored. Set always to 0x20 */ \
/* I4 */	0xf5, /* Ignored */ \
/* I5 */	0x10, \
/* I6 */	0x00, \
/* I7 */	0x2e, /* I7 MEM config A. Likely to vary between models */ \
/* I8 */	0x00, /* I8 MEM config B. Likely to vary between models */ \
/* I9 */	0x40 /* Ignored */ \
	}
#endif

	unsigned long   flags;
	static unsigned char regs[10] = SSCAPE_REGS;

	int i, irq_bits = 0xff;

	if (old_hardware)
	{
		valid_interrupts = valid_interrupts_old;
		conf_printf("Ensoniq SoundScape (old)", hw_config);
	}
	else
		conf_printf("Ensoniq SoundScape", hw_config);

	for (i = 0; i < 4; i++)
	{
		if (hw_config->irq == valid_interrupts[i])
		{
			irq_bits = i;
			break;
		}
	}
	if (hw_config->irq > 15 || (regs[4] = irq_bits == 0xff))
	{
		printk(KERN_ERR "Invalid IRQ%d\n", hw_config->irq);
		release_region(devc->base, 2);
		release_region(devc->base + 2, 6);
		if (sscape_is_pnp)
			release_region(devc->codec, 2);
		return;
	}
	
	if (!sscape_is_pnp) {
	
		spin_lock_irqsave(&devc->lock,flags);
		/* Host interrupt enable */
		sscape_write(devc, 1, 0xf0);	/* All interrupts enabled */
		/* DMA A status/trigger register */
		sscape_write(devc, 2, 0x20);	/* DMA channel disabled */
		/* DMA B status/trigger register */
		sscape_write(devc, 3, 0x20);	/* DMA channel disabled */
		/* Host interrupt config reg */
		sscape_write(devc, 4, 0xf0 | (irq_bits << 2) | irq_bits);
		/* Don't destroy CD-ROM DMA config bits (0xc0) */
		sscape_write(devc, 5, (regs[5] & 0x3f) | (sscape_read(devc, 5) & 0xc0));
		/* CD-ROM config (WSS codec actually) */
		sscape_write(devc, 6, regs[6]);
		sscape_write(devc, 7, regs[7]);
		sscape_write(devc, 8, regs[8]);
		/* Master control reg. Don't modify CR-ROM bits. Disable SB emul */
		sscape_write(devc, 9, (sscape_read(devc, 9) & 0xf0) | 0x08);
		spin_unlock_irqrestore(&devc->lock,flags);
	}
#ifdef SSCAPE_DEBUG2
	/*
	 * Temporary debugging aid. Print contents of the registers after
	 * changing them.
	 */
	{
		int i;

		for (i = 0; i < 13; i++)
			printk("I%d = %02x (new value)\n", i, sscape_read(devc, i));
	}
#endif

	if (probe_mpu401(hw_config, sscape_ports))
		hw_config->always_detect = 1;
	hw_config->name = "SoundScape";

	hw_config->irq *= -1;	/* Negative value signals IRQ sharing */
	attach_mpu401(hw_config, THIS_MODULE);
	hw_config->irq *= -1;	/* Restore it */

	if (hw_config->slots[1] != -1)	/* The MPU driver installed itself */
	{
		sscape_mididev = hw_config->slots[1];
		midi_devs[hw_config->slots[1]]->coproc = &sscape_coproc_operations;
	}
	sscape_write(devc, GA_INTENA_REG, 0x80);	/* Master IRQ enable */
	devc->ok = 1;
	devc->failed = 0;
}

static int detect_ga(sscape_info * devc)
{
	unsigned char save;

	DDB(printk("Entered Soundscape detect_ga(%x)\n", devc->base));

	/*
	 * First check that the address register of "ODIE" is
	 * there and that it has exactly 4 writable bits.
	 * First 4 bits
	 */
	
	if ((save = inb(PORT(ODIE_ADDR))) & 0xf0)
	{
		DDB(printk("soundscape: Detect error A\n"));
		return 0;
	}
	outb((0x00), PORT(ODIE_ADDR));
	if (inb(PORT(ODIE_ADDR)) != 0x00)
	{
		DDB(printk("soundscape: Detect error B\n"));
		return 0;
	}
	outb((0xff), PORT(ODIE_ADDR));
	if (inb(PORT(ODIE_ADDR)) != 0x0f)
	{
		DDB(printk("soundscape: Detect error C\n"));
		return 0;
	}
	outb((save), PORT(ODIE_ADDR));

	/*
	 * Now verify that some indirect registers return zero on some bits.
	 * This may break the driver with some future revisions of "ODIE" but...
	 */

	if (sscape_read(devc, 0) & 0x0c)
	{
		DDB(printk("soundscape: Detect error D (%x)\n", sscape_read(devc, 0)));
		return 0;
	}
	if (sscape_read(devc, 1) & 0x0f)
	{
		DDB(printk("soundscape: Detect error E\n"));
		return 0;
	}
	if (sscape_read(devc, 5) & 0x0f)
	{
		DDB(printk("soundscape: Detect error F\n"));
		return 0;
	}
	return 1;
}

static	int sscape_read_host_ctrl(sscape_info* devc)
{
	return host_read(devc);
}

static	void sscape_write_host_ctrl2(sscape_info *devc, int a, int b)
{
	host_command2(devc, a, b);
}

static int sscape_alloc_dma(sscape_info *devc)
{
	char *start_addr, *end_addr;
	int dma_pagesize;
	int sz, size;
	struct page *page;

	if (devc->raw_buf != NULL) return 0;	/* Already done */
	dma_pagesize = (devc->dma < 4) ? (64 * 1024) : (128 * 1024);
	devc->raw_buf = NULL;
	devc->buffsize = 8192*4;
	if (devc->buffsize > dma_pagesize) devc->buffsize = dma_pagesize;
	start_addr = NULL;
	/*
	 * Now loop until we get a free buffer. Try to get smaller buffer if
	 * it fails. Don't accept smaller than 8k buffer for performance
	 * reasons.
	 */
	while (start_addr == NULL && devc->buffsize > PAGE_SIZE) {
		for (sz = 0, size = PAGE_SIZE; size < devc->buffsize; sz++, size <<= 1);
		devc->buffsize = PAGE_SIZE * (1 << sz);
		start_addr = (char *) __get_free_pages(GFP_ATOMIC|GFP_DMA, sz);
		if (start_addr == NULL) devc->buffsize /= 2;
	}

	if (start_addr == NULL) {
		printk(KERN_ERR "sscape pnp init error: Couldn't allocate DMA buffer\n");
		return 0;
	} else {
		/* make some checks */
		end_addr = start_addr + devc->buffsize - 1;		
		/* now check if it fits into the same dma-pagesize */

		if (((long) start_addr & ~(dma_pagesize - 1)) != ((long) end_addr & ~(dma_pagesize - 1))
		    || end_addr >= (char *) (MAX_DMA_ADDRESS)) {
			printk(KERN_ERR "sscape pnp: Got invalid address 0x%lx for %db DMA-buffer\n", (long) start_addr, devc->buffsize);
			return 0;
		}
	}
	devc->raw_buf = start_addr;
	devc->raw_buf_phys = virt_to_bus(start_addr);

	for (page = virt_to_page(start_addr); page <= virt_to_page(end_addr); page++)
		SetPageReserved(page);
	return 1;
}

static void sscape_free_dma(sscape_info *devc)
{
	int sz, size;
	unsigned long start_addr, end_addr;
	struct page *page;

	if (devc->raw_buf == NULL) return;
	for (sz = 0, size = PAGE_SIZE; size < devc->buffsize; sz++, size <<= 1);
	start_addr = (unsigned long) devc->raw_buf;
	end_addr = start_addr + devc->buffsize;

	for (page = virt_to_page(start_addr); page <= virt_to_page(end_addr); page++)
		ClearPageReserved(page);

	free_pages((unsigned long) devc->raw_buf, sz);
	devc->raw_buf = NULL;
}

/* Intel version !!!!!!!!! */

static int sscape_start_dma(int chan, unsigned long physaddr, int count, int dma_mode)
{
	unsigned long flags;

	flags = claim_dma_lock();
	disable_dma(chan);
	clear_dma_ff(chan);
	set_dma_mode(chan, dma_mode);
	set_dma_addr(chan, physaddr);
	set_dma_count(chan, count);
	enable_dma(chan);
	release_dma_lock(flags);
	return 0;
}

static void sscape_pnp_start_dma(sscape_info* devc, int arg )
{
	int reg;
	if (arg == 0) reg = 2;
	else reg = 3;

	sscape_write(devc, reg, sscape_read( devc, reg) | 0x01);
	sscape_write(devc, reg, sscape_read( devc, reg) & 0xFE);
}

static int sscape_pnp_wait_dma (sscape_info* devc, int arg )
{
	int		reg;
	unsigned long	i;
	unsigned char	d;

	if (arg == 0) reg = 2;
	else reg = 3;

	sleep ( 1 );
	i = 0;
	do {
		d = sscape_read(devc, reg) & 1;
		if ( d == 1)  break;
		i++;
	} while (i < 500000);
	d = sscape_read(devc, reg) & 1; 
	return d;
}

static	int	sscape_pnp_alloc_dma(sscape_info* devc)
{
	/* printk(KERN_INFO "sscape: requesting dma\n"); */
	if (request_dma(devc -> dma, "sscape")) return 0;
	/* printk(KERN_INFO "sscape: dma channel allocated\n"); */
	if (!sscape_alloc_dma(devc)) {
		free_dma(devc -> dma);
		return 0;
	};
	return 1;
}

static	void	sscape_pnp_free_dma(sscape_info* devc)
{
	sscape_free_dma( devc);
	free_dma(devc -> dma );	
	/* printk(KERN_INFO "sscape: dma released\n"); */
}

static	int	sscape_pnp_upload_file(sscape_info* devc, char* fn)
{	
	int	     	done = 0;
	int	     	timeout_val;
	char*	     	data,*dt;
	int	     	len,l;
	unsigned long	flags;

	sscape_write( devc, 9, sscape_read(devc, 9 )  & 0x3F );
	sscape_write( devc, 2, (devc -> dma << 4) | 0x80 );
	sscape_write( devc, 3, 0x20 );
	sscape_write( devc, 9, sscape_read( devc, 9 )  | 0x80 );
	
	len = mod_firmware_load(fn, &data);
	if (len == 0) {
		    printk(KERN_ERR "sscape: file not found: %s\n", fn);
		    return 0;
	}
	dt = data;
	spin_lock_irqsave(&devc->lock,flags);
	while ( len > 0 ) {
		if (len > devc -> buffsize) l = devc->buffsize;
		else l = len;
		len -= l;		
		memcpy(devc->raw_buf, dt, l); dt += l;
		sscape_start_dma(devc->dma, devc->raw_buf_phys, l, 0x48);
		sscape_pnp_start_dma ( devc, 0 );
		if (sscape_pnp_wait_dma ( devc, 0 ) == 0) {
			spin_unlock_irqrestore(&devc->lock,flags);
			return 0;
		}
	}
	
	spin_unlock_irqrestore(&devc->lock,flags);
	vfree(data);
	
	outb(0, devc -> base + 2);
	outb(0, devc -> base);

	sscape_write ( devc, 9, sscape_read( devc, 9 ) | 0x40);

	timeout_val = 5 * HZ; 
	while (!done && timeout_val-- > 0)
	{
		unsigned char x;
		sleep(1);
		x = inb( devc -> base + 3);
		if (x == 0xff || x == 0xfe)		/* OBP startup acknowledge */
		{
			//printk(KERN_ERR "Soundscape: Acknowledge = %x\n", x);
			done = 1;
		}
	}
	timeout_val = 5 * HZ;
	done = 0;
	while (!done && timeout_val-- > 0)
	{
		unsigned char x;
		sleep(1);
		x = inb( devc -> base + 3);
		if (x == 0xfe)		/* OBP startup acknowledge */
		{
			//printk(KERN_ERR "Soundscape: Acknowledge = %x\n", x);
			done = 1;
		}
	}

	if ( !done ) printk(KERN_ERR "soundscape: OBP Initialization failed.\n");

	sscape_write( devc, 2, devc->ic_type == IC_ODIE ? 0x70 : 0x40);
	sscape_write( devc, 3, (devc -> dma << 4) + 0x80);
	return 1;
}

static void __init sscape_pnp_init_hw(sscape_info* devc)
{	
	unsigned char midi_irq = 0, sb_irq = 0;
	unsigned i;
	static	char code_file_name[23] = "/sndscape/sndscape.cox";
	
	int sscape_sb_enable		= 0;
	int sscape_joystic_enable	= 0x7f;
	int sscape_mic_enable		= 0;
	int sscape_ext_midi		= 0;		

	if ( !sscape_pnp_alloc_dma(devc) ) {
		printk(KERN_ERR "sscape: faild to allocate dma\n");
		return;
	}

	for (i = 0; i < 4; i++) {
		if ( devc -> irq   == valid_interrupts[i] ) 
			midi_irq = i;
		if ( devc -> codec_irq == valid_interrupts[i] ) 
			sb_irq = i;
	}

	sscape_write( devc, 5, 0x50);
	sscape_write( devc, 7, 0x2e);
	sscape_write( devc, 8, 0x00);

	sscape_write( devc, 2, devc->ic_type == IC_ODIE ? 0x70 : 0x40);
	sscape_write( devc, 3, ( devc -> dma << 4) | 0x80);

	if ( sscape_sb_enable )
		sscape_write (devc, 4, 0xF0 | (sb_irq << 2) | midi_irq);
	else	
		sscape_write (devc, 4, 0xF0 | (midi_irq<<2) | midi_irq);

	i = 0x10; //sscape_read(devc, 9) & (devc->ic_type == IC_ODIE ? 0xf0 : 0xc0);
	if ( sscape_sb_enable )
		i |= devc->ic_type == IC_ODIE ? 0x05 : 0x07;	    
	if (sscape_joystic_enable) i |= 8;
	
	sscape_write (devc, 9, i);
	sscape_write (devc, 6, 0x80);
	sscape_write (devc, 1, 0x80);

	if (devc -> codec_type == 2) {
		sscape_pnp_write_codec( devc, 0x0C, 0x50);
		sscape_pnp_write_codec( devc, 0x10, sscape_pnp_read_codec( devc, 0x10) & 0x3F);
		sscape_pnp_write_codec( devc, 0x11, sscape_pnp_read_codec( devc, 0x11) | 0xC0);
		sscape_pnp_write_codec( devc, 29, 0x20);
	}

	if (sscape_pnp_upload_file(devc, "/sndscape/scope.cod") == 0 ) {
		printk(KERN_ERR "sscape: faild to upload file /sndscape/scope.cod\n");
		sscape_pnp_free_dma(devc);
		return;
	}

	i = sscape_read_host_ctrl( devc );
	
	if ( (i & 0x0F) >  7 ) {
		printk(KERN_ERR "sscape: scope.cod faild\n");
		sscape_pnp_free_dma(devc);
		return;
	}
	if ( i & 0x10 ) sscape_write( devc, 7, 0x2F);
	code_file_name[21] = (char) ( i & 0x0F) + 0x30;
	if (sscape_pnp_upload_file( devc, code_file_name) == 0) {
		printk(KERN_ERR "sscape: faild to upload file %s\n", code_file_name);
		sscape_pnp_free_dma(devc);
		return;
	}
	
	if (devc->ic_type != IC_ODIE) {
		sscape_pnp_write_codec( devc, 10, (sscape_pnp_read_codec(devc, 10) & 0x7f) |
		 ( sscape_mic_enable == 0 ? 0x00 : 0x80) );
	}
	sscape_write_host_ctrl2( devc, 0x84, 0x64 );  /* MIDI volume */
	sscape_write_host_ctrl2( devc, 0x86, 0x64 );  /* MIDI volume?? */
	sscape_write_host_ctrl2( devc, 0x8A, sscape_ext_midi);

	sscape_pnp_write_codec ( devc, 6, 0x3f ); //WAV_VOL
	sscape_pnp_write_codec ( devc, 7, 0x3f ); //WAV_VOL
	sscape_pnp_write_codec ( devc, 2, 0x1F ); //WD_CDXVOLL
	sscape_pnp_write_codec ( devc, 3, 0x1F ); //WD_CDXVOLR

	if (devc -> codec_type == 1) {
		sscape_pnp_write_codec ( devc, 4, 0x1F );
		sscape_pnp_write_codec ( devc, 5, 0x1F );
		sscape_write_host_ctrl2( devc, 0x88, sscape_mic_enable);
	} else {
		int t;
		sscape_pnp_write_codec ( devc, 0x10, 0x1F << 1);
		sscape_pnp_write_codec ( devc, 0x11, 0xC0 | (0x1F << 1));

		t = sscape_pnp_read_codec( devc, 0x00) & 0xDF;
		if ( (sscape_mic_enable == 0)) t |= 0;
		else t |= 0x20;
		sscape_pnp_write_codec ( devc, 0x00, t);
		t = sscape_pnp_read_codec( devc, 0x01) & 0xDF;
		if ( (sscape_mic_enable == 0) ) t |= 0;
		else t |= 0x20;
		sscape_pnp_write_codec ( devc, 0x01, t);
		sscape_pnp_write_codec ( devc, 0x40 | 29 , 0x20);
		outb(0, devc -> codec);
	}
	if (devc -> ic_type == IC_OPUS ) {
		int i = sscape_read( devc, 9 );
		sscape_write( devc, 9, i | 3 );
		sscape_write( devc, 3, 0x40);

		if (request_region(0x228, 1, "sscape setup junk")) {
			outb(0, 0x228);
			release_region(0x228,1);
		}
		sscape_write( devc, 3, (devc -> dma << 4) | 0x80);
		sscape_write( devc, 9, i );
	}
	
	host_close ( devc );
	sscape_pnp_free_dma(devc);
}

static int __init detect_sscape_pnp(sscape_info* devc)
{
	long	 i, irq_bits = 0xff;
	unsigned int d;

	DDB(printk("Entered detect_sscape_pnp(%x)\n", devc->base));

	if (!request_region(devc->codec, 2, "sscape codec")) {
		printk(KERN_ERR "detect_sscape_pnp: port %x is not free\n", devc->codec);	
		return 0;
	}

	if ((inb(devc->base + 2) & 0x78) != 0)
		goto fail;

	d = inb ( devc -> base + 4) & 0xF0;
	if (d & 0x80)
		goto fail;
	
	if (d == 0) {
		devc->codec_type = 1;
		devc->ic_type = IC_ODIE;
	} else if ( (d & 0x60) != 0) {
		devc->codec_type = 2;
		devc->ic_type = IC_OPUS;
	} else if ( (d & 0x40) != 0) {	/* WTF? */
		devc->codec_type = 2;
		devc->ic_type = IC_ODIE;
	} else
		goto fail;
	
	sscape_is_pnp = 1;
		
	outb(0xFA, devc -> base+4);
	if  ((inb( devc -> base+4) & 0x9F) != 0x0A)
		goto fail;
	outb(0xFE, devc -> base+4);
	if  ( (inb(devc -> base+4) & 0x9F) != 0x0E)
		goto fail;
	if  ( (inb(devc -> base+5) & 0x9F) != 0x0E)
		goto fail;

	if (devc->codec_type == 2) {
		if (devc->codec != devc->base + 8) {
			printk("soundscape warning: incorrect codec port specified\n");
			goto fail;
		}
		d = 0x10 | (sscape_read(devc, 9)  & 0xCF);
		sscape_write(devc, 9, d);
		sscape_write(devc, 6, 0x80);
	} else {
		//todo: check codec is not base + 8
	}

	d  = (sscape_read(devc, 9) & 0x3F) | 0xC0;
	sscape_write(devc, 9, d);

	for (i = 0; i < 550000; i++)
		if ( !(inb(devc -> codec) & 0x80) ) break;

	d = inb(devc -> codec);
	if (d & 0x80)
		goto fail;
	if ( inb(devc -> codec + 2) == 0xFF)
		goto fail;

	sscape_write(devc, 9, sscape_read(devc, 9)  & 0x3F );

	d  = inb(devc -> codec) & 0x80;
	if ( d == 0) {
		printk(KERN_INFO "soundscape: hardware detected\n");
		valid_interrupts = valid_interrupts_new;
	} else	{
		printk(KERN_INFO "soundscape: board looks like media fx\n");
		valid_interrupts = valid_interrupts_old;
		old_hardware = 1;
	}

	sscape_write( devc, 9, 0xC0 | (sscape_read(devc, 9)  & 0x3F) );

	for (i = 0; i < 550000; i++)
		if ( !(inb(devc -> codec) & 0x80)) 
			break;
		
	sscape_pnp_init_hw(devc);

	for (i = 0; i < 4; i++)
	{
		if (devc->codec_irq == valid_interrupts[i]) {
			irq_bits = i;
			break;
		}
	}	
	sscape_write(devc, GA_INTENA_REG, 0x00);
	sscape_write(devc, GA_DMACFG_REG, 0x50);
	sscape_write(devc, GA_DMAA_REG, 0x70);
	sscape_write(devc, GA_DMAB_REG, 0x20);
	sscape_write(devc, GA_INTCFG_REG, 0xf0);
	sscape_write(devc, GA_CDCFG_REG, 0x89 | (devc->dma << 4) | (irq_bits << 1));

	sscape_pnp_write_codec( devc, 0, sscape_pnp_read_codec( devc, 0) | 0x20);
	sscape_pnp_write_codec( devc, 0, sscape_pnp_read_codec( devc, 1) | 0x20);

	return 1;
fail:
	release_region(devc->codec, 2);
	return 0;
}

static int __init probe_sscape(struct address_info *hw_config)
{
	devc->base = hw_config->io_base;
	devc->irq = hw_config->irq;
	devc->dma = hw_config->dma;
	devc->osp = hw_config->osp;

#ifdef SSCAPE_DEBUG1
	/*
	 * Temporary debugging aid. Print contents of the registers before
	 * changing them.
	 */
	{
		int i;

		for (i = 0; i < 13; i++)
			printk("I%d = %02x (old value)\n", i, sscape_read(devc, i));
	}
#endif
	devc->failed = 1;

	sscape_ports = request_region(devc->base, 2, "mpu401");
	if (!sscape_ports)
		return 0;

	if (!request_region(devc->base + 2, 6, "SoundScape")) {
		release_region(devc->base, 2);
		return 0;
	}

	if (!detect_ga(devc)) {
		if (detect_sscape_pnp(devc))
			return 1;
		release_region(devc->base, 2);
		release_region(devc->base + 2, 6);
		return 0;
	}

	if (old_hardware)	/* Check that it's really an old Spea/Reveal card. */
	{
		unsigned char   tmp;
		int             cc;

		if (!((tmp = sscape_read(devc, GA_HMCTL_REG)) & 0xc0))
		{
			sscape_write(devc, GA_HMCTL_REG, tmp | 0x80);
			for (cc = 0; cc < 200000; ++cc)
				inb(devc->base + ODIE_ADDR);
		}
	}
	return 1;
}

static int __init init_ss_ms_sound(struct address_info *hw_config)
{
	int i, irq_bits = 0xff;
	int ad_flags = 0;
	struct resource *ports;
	
	if (devc->failed)
	{
		printk(KERN_ERR "soundscape: Card not detected\n");
		return 0;
	}
	if (devc->ok == 0)
	{
		printk(KERN_ERR "soundscape: Invalid initialization order.\n");
		return 0;
	}
	for (i = 0; i < 4; i++)
	{
		if (hw_config->irq == valid_interrupts[i])
		{
			irq_bits = i;
			break;
		}
	}
	if (irq_bits == 0xff) {
		printk(KERN_ERR "soundscape: Invalid MSS IRQ%d\n", hw_config->irq);
		return 0;
	}
	
	if (old_hardware)
		ad_flags = 0x12345677;	/* Tell that we may have a CS4248 chip (Spea-V7 Media FX) */
	else if (sscape_is_pnp)
		ad_flags = 0x87654321;  /* Tell that we have a soundscape pnp with 1845 chip */

	ports = request_region(hw_config->io_base, 4, "ad1848");
	if (!ports) {
		printk(KERN_ERR "soundscape: ports busy\n");
		return 0;
	}

	if (!ad1848_detect(ports, &ad_flags, hw_config->osp)) {
		release_region(hw_config->io_base, 4);
		return 0;
	}

 	if (!sscape_is_pnp)  /*pnp is already setup*/
 	{
 		/*
     		 * Setup the DMA polarity.
 	    	 */
 		sscape_write(devc, GA_DMACFG_REG, 0x50);
 	
 		/*
 		 * Take the gate-array off of the DMA channel.
 		 */
 		sscape_write(devc, GA_DMAB_REG, 0x20);
 	
 		/*
 		 * Init the AD1848 (CD-ROM) config reg.
 		 */
 		sscape_write(devc, GA_CDCFG_REG, 0x89 | (hw_config->dma << 4) | (irq_bits << 1));
 	}
 	
 	if (hw_config->irq == devc->irq)
 		printk(KERN_WARNING "soundscape: Warning! The WSS mode can't share IRQ with MIDI\n");
 				
	hw_config->slots[0] = ad1848_init(
			sscape_is_pnp ? "SoundScape" : "SoundScape PNP",
			ports,
			hw_config->irq,
			hw_config->dma,
			hw_config->dma,
			0,
			devc->osp,
			THIS_MODULE);

 					  
	if (hw_config->slots[0] != -1)	/* The AD1848 driver installed itself */
	{
		audio_devs[hw_config->slots[0]]->coproc = &sscape_coproc_operations;
		devc->codec_audiodev = hw_config->slots[0];
		devc->my_audiodev = hw_config->slots[0];

		/* Set proper routings here (what are they) */
		AD1848_REROUTE(SOUND_MIXER_LINE1, SOUND_MIXER_LINE);
	}
		
#ifdef SSCAPE_DEBUG5
	/*
	 * Temporary debugging aid. Print contents of the registers
	 * after the AD1848 device has been initialized.
	 */
	{
		int i;

		for (i = 0; i < 13; i++)
			printk("I%d = %02x\n", i, sscape_read(devc, i));
	}
#endif
	return 1;
}

static void __exit unload_sscape(struct address_info *hw_config)
{
	release_region(devc->base + 2, 6);
	unload_mpu401(hw_config);
	if (sscape_is_pnp)
		release_region(devc->codec, 2);
}

static void __exit unload_ss_ms_sound(struct address_info *hw_config)
{
	ad1848_unload(hw_config->io_base,
		      hw_config->irq,
		      devc->dma,
		      devc->dma,
		      0);
	sound_unload_audiodev(hw_config->slots[0]);
}

static struct address_info cfg;
static struct address_info cfg_mpu;

static int __initdata spea = -1;
static int mss = 0;
static int __initdata dma = -1;
static int __initdata irq = -1;
static int __initdata io = -1;
static int __initdata mpu_irq = -1;
static int __initdata mpu_io = -1;

module_param(dma, int, 0);
module_param(irq, int, 0);
module_param(io, int, 0);
module_param(spea, int, 0);		/* spea=0/1 set the old_hardware */
module_param(mpu_irq, int, 0);
module_param(mpu_io, int, 0);
module_param(mss, int, 0);

static int __init init_sscape(void)
{
	printk(KERN_INFO "Soundscape driver Copyright (C) by Hannu Savolainen 1993-1996\n");
	
	cfg.irq = irq;
	cfg.dma = dma;
	cfg.io_base = io;

	cfg_mpu.irq = mpu_irq;
	cfg_mpu.io_base = mpu_io;
	/* WEH - Try to get right dma channel */
        cfg_mpu.dma = dma;
	
	devc->codec = cfg.io_base;
	devc->codec_irq = cfg.irq;
	devc->codec_type = 0;
	devc->ic_type = 0;
	devc->raw_buf = NULL;
	spin_lock_init(&devc->lock);

	if (cfg.dma == -1 || cfg.irq == -1 || cfg.io_base == -1) {
		printk(KERN_ERR "DMA, IRQ, and IO port must be specified.\n");
		return -EINVAL;
	}
	
	if (cfg_mpu.irq == -1 && cfg_mpu.io_base != -1) {
		printk(KERN_ERR "MPU_IRQ must be specified if MPU_IO is set.\n");
		return -EINVAL;
	}
	
	if(spea != -1) {
		old_hardware = spea;
		printk(KERN_INFO "Forcing %s hardware support.\n",
			spea?"new":"old");
	}	
	if (probe_sscape(&cfg_mpu) == 0)
		return -ENODEV;

	attach_sscape(&cfg_mpu);
	
	mss = init_ss_ms_sound(&cfg);

	return 0;
}

static void __exit cleanup_sscape(void)
{
	if (mss)
		unload_ss_ms_sound(&cfg);
	unload_sscape(&cfg_mpu);
}

module_init(init_sscape);
module_exit(cleanup_sscape);

#ifndef MODULE
static int __init setup_sscape(char *str)
{
	/* io, irq, dma, mpu_io, mpu_irq */
	int ints[6];
	
	str = get_options(str, ARRAY_SIZE(ints), ints);
	
	io	= ints[1];
	irq	= ints[2];
	dma	= ints[3];
	mpu_io	= ints[4];
	mpu_irq	= ints[5];

	return 1;
}

__setup("sscape=", setup_sscape);
#endif
MODULE_LICENSE("GPL");
OpenPOWER on IntegriCloud