summaryrefslogtreecommitdiffstats
path: root/drivers/media/video/msp3400.c
blob: 1b7d38e96f14ca6f7c4505ee3273eabf46364ea5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
/*
 * programming the msp34* sound processor family
 *
 * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
 *
 * what works and what doesn't:
 *
 *  AM-Mono
 *      Support for Hauppauge cards added (decoding handled by tuner) added by
 *      Frederic Crozat <fcrozat@mail.dotcom.fr>
 *
 *  FM-Mono
 *      should work. The stereo modes are backward compatible to FM-mono,
 *      therefore FM-Mono should be allways available.
 *
 *  FM-Stereo (B/G, used in germany)
 *      should work, with autodetect
 *
 *  FM-Stereo (satellite)
 *      should work, no autodetect (i.e. default is mono, but you can
 *      switch to stereo -- untested)
 *
 *  NICAM (B/G, L , used in UK, Scandinavia, Spain and France)
 *      should work, with autodetect. Support for NICAM was added by
 *      Pekka Pietikainen <pp@netppl.fi>
 *
 *
 * TODO:
 *   - better SAT support
 *
 *
 * 980623  Thomas Sailer (sailer@ife.ee.ethz.ch)
 *         using soundcore instead of OSS
 *
 */

#include <linux/config.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/videodev.h>
#include <linux/init.h>
#include <linux/smp_lock.h>
#include <linux/kthread.h>
#include <linux/suspend.h>
#include <asm/semaphore.h>
#include <asm/pgtable.h>

#include <media/audiochip.h>
#include <media/id.h>
#include "msp3400.h"

#define OPMODE_AUTO    -1
#define OPMODE_MANUAL   0
#define OPMODE_SIMPLE   1   /* use short programming (>= msp3410 only) */
#define OPMODE_SIMPLER  2   /* use shorter programming (>= msp34xxG)   */

/* insmod parameters */
static int opmode   = OPMODE_AUTO;
static int debug    = 0;    /* debug output */
static int once     = 0;    /* no continous stereo monitoring */
static int amsound  = 0;    /* hard-wire AM sound at 6.5 Hz (france),
			       the autoscan seems work well only with FM... */
static int standard = 1;    /* Override auto detect of audio standard, if needed. */
static int dolby    = 0;

static int stereo_threshold = 0x190; /* a2 threshold for stereo/bilingual
					(msp34xxg only) 0x00a0-0x03c0 */

struct msp3400c {
	int rev1,rev2;

	int opmode;
	int mode;
	int norm;
	int nicam_on;
	int acb;
	int main, second;	/* sound carrier */
	int input;
	int source;             /* see msp34xxg_set_source */

	/* v4l2 */
	int audmode;
	int rxsubchans;

	int muted;
	int volume, balance;
	int bass, treble;

	/* thread */
	struct task_struct   *kthread;
	wait_queue_head_t    wq;
	int                  restart:1;
	int                  watch_stereo:1;
};

#define HAVE_NICAM(msp)   (((msp->rev2>>8) & 0xff) != 00)
#define HAVE_SIMPLE(msp)  ((msp->rev1      & 0xff) >= 'D'-'@')
#define HAVE_SIMPLER(msp) ((msp->rev1      & 0xff) >= 'G'-'@')
#define HAVE_RADIO(msp)   ((msp->rev1      & 0xff) >= 'G'-'@')

#define VIDEO_MODE_RADIO 16      /* norm magic for radio mode */

/* ---------------------------------------------------------------------- */

#define dprintk      if (debug >= 1) printk
#define d2printk     if (debug >= 2) printk

/* read-only */
module_param(opmode,           int, 0444);

/* read-write */
module_param(once,             int, 0644);
module_param(debug,            int, 0644);
module_param(stereo_threshold, int, 0644);
module_param(standard,         int, 0644);
module_param(amsound,          int, 0644);
module_param(dolby,            int, 0644);

MODULE_PARM_DESC(once, "No continuous stereo monitoring");
MODULE_PARM_DESC(debug, "Enable debug messages");
MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect");
MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan");

MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
MODULE_AUTHOR("Gerd Knorr");
MODULE_LICENSE("Dual BSD/GPL"); /* FreeBSD uses this too */

/* ---------------------------------------------------------------------- */

#define I2C_MSP3400C       0x80
#define I2C_MSP3400C_ALT   0x88

#define I2C_MSP3400C_DEM   0x10
#define I2C_MSP3400C_DFP   0x12

/* Addresses to scan */
static unsigned short normal_i2c[] = {
	I2C_MSP3400C      >> 1,
	I2C_MSP3400C_ALT  >> 1,
	I2C_CLIENT_END
};
I2C_CLIENT_INSMOD;

/* ----------------------------------------------------------------------- */
/* functions for talking to the MSP3400C Sound processor                   */

static int msp3400c_reset(struct i2c_client *client)
{
	/* reset and read revision code */
	static char reset_off[3] = { 0x00, 0x80, 0x00 };
	static char reset_on[3]  = { 0x00, 0x00, 0x00 };
	static char write[3]     = { I2C_MSP3400C_DFP + 1, 0x00, 0x1e };
	char read[2];
	struct i2c_msg reset[2] = {
		{ client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
		{ client->addr, I2C_M_IGNORE_NAK, 3, reset_on  },
	};
	struct i2c_msg test[2] = {
		{ client->addr, 0,        3, write },
		{ client->addr, I2C_M_RD, 2, read  },
	};

	if ( (1 != i2c_transfer(client->adapter,&reset[0],1)) ||
	     (1 != i2c_transfer(client->adapter,&reset[1],1)) ||
	     (2 != i2c_transfer(client->adapter,test,2)) ) {
		printk(KERN_ERR "msp3400: chip reset failed\n");
		return -1;
        }
	return 0;
}

static int
msp3400c_read(struct i2c_client *client, int dev, int addr)
{
	int err;

        unsigned char write[3];
        unsigned char read[2];
        struct i2c_msg msgs[2] = {
                { client->addr, 0,        3, write },
                { client->addr, I2C_M_RD, 2, read  }
        };
        write[0] = dev+1;
        write[1] = addr >> 8;
        write[2] = addr & 0xff;

	for (err = 0; err < 3;) {
		if (2 == i2c_transfer(client->adapter,msgs,2))
			break;
		err++;
		printk(KERN_WARNING "msp34xx: I/O error #%d (read 0x%02x/0x%02x)\n",
		       err, dev, addr);
		msleep(10);
	}
	if (3 == err) {
		printk(KERN_WARNING "msp34xx: giving up, reseting chip. Sound will go off, sorry folks :-|\n");
		msp3400c_reset(client);
		return -1;
	}
	return read[0] << 8 | read[1];
}

static int
msp3400c_write(struct i2c_client *client, int dev, int addr, int val)
{
	int err;
        unsigned char buffer[5];

        buffer[0] = dev;
        buffer[1] = addr >> 8;
        buffer[2] = addr &  0xff;
        buffer[3] = val  >> 8;
        buffer[4] = val  &  0xff;

	for (err = 0; err < 3;) {
		if (5 == i2c_master_send(client, buffer, 5))
			break;
		err++;
		printk(KERN_WARNING "msp34xx: I/O error #%d (write 0x%02x/0x%02x)\n",
		       err, dev, addr);
		msleep(10);
	}
	if (3 == err) {
		printk(KERN_WARNING "msp34xx: giving up, reseting chip. Sound will go off, sorry folks :-|\n");
		msp3400c_reset(client);
		return -1;
	}
	return 0;
}

/* ------------------------------------------------------------------------ */

/* This macro is allowed for *constants* only, gcc must calculate it
   at compile time.  Remember -- no floats in kernel mode */
#define MSP_CARRIER(freq) ((int)((float)(freq/18.432)*(1<<24)))

#define MSP_MODE_AM_DETECT   0
#define MSP_MODE_FM_RADIO    2
#define MSP_MODE_FM_TERRA    3
#define MSP_MODE_FM_SAT      4
#define MSP_MODE_FM_NICAM1   5
#define MSP_MODE_FM_NICAM2   6
#define MSP_MODE_AM_NICAM    7
#define MSP_MODE_BTSC        8
#define MSP_MODE_EXTERN      9

static struct MSP_INIT_DATA_DEM {
	int fir1[6];
	int fir2[6];
	int cdo1;
	int cdo2;
	int ad_cv;
	int mode_reg;
	int dfp_src;
	int dfp_matrix;
} msp_init_data[] = {
	/* AM (for carrier detect / msp3400) */
	{ { 75, 19, 36, 35, 39, 40 }, { 75, 19, 36, 35, 39, 40 },
	  MSP_CARRIER(5.5), MSP_CARRIER(5.5),
	  0x00d0, 0x0500,   0x0020, 0x3000},

	/* AM (for carrier detect / msp3410) */
	{ { -1, -1, -8, 2, 59, 126 }, { -1, -1, -8, 2, 59, 126 },
	  MSP_CARRIER(5.5), MSP_CARRIER(5.5),
	  0x00d0, 0x0100,   0x0020, 0x3000},

	/* FM Radio */
	{ { -8, -8, 4, 6, 78, 107 }, { -8, -8, 4, 6, 78, 107 },
	  MSP_CARRIER(10.7), MSP_CARRIER(10.7),
	  0x00d0, 0x0480, 0x0020, 0x3000 },

	/* Terrestial FM-mono + FM-stereo */
	{ {  3, 18, 27, 48, 66, 72 }, {  3, 18, 27, 48, 66, 72 },
	  MSP_CARRIER(5.5), MSP_CARRIER(5.5),
	  0x00d0, 0x0480,   0x0030, 0x3000},

	/* Sat FM-mono */
	{ {  1,  9, 14, 24, 33, 37 }, {  3, 18, 27, 48, 66, 72 },
	  MSP_CARRIER(6.5), MSP_CARRIER(6.5),
	  0x00c6, 0x0480,   0x0000, 0x3000},

	/* NICAM/FM --  B/G (5.5/5.85), D/K (6.5/5.85) */
	{ { -2, -8, -10, 10, 50, 86 }, {  3, 18, 27, 48, 66, 72 },
	  MSP_CARRIER(5.5), MSP_CARRIER(5.5),
	  0x00d0, 0x0040,   0x0120, 0x3000},

	/* NICAM/FM -- I (6.0/6.552) */
	{ {  2, 4, -6, -4, 40, 94 }, {  3, 18, 27, 48, 66, 72 },
	  MSP_CARRIER(6.0), MSP_CARRIER(6.0),
	  0x00d0, 0x0040,   0x0120, 0x3000},

	/* NICAM/AM -- L (6.5/5.85) */
	{ {  -2, -8, -10, 10, 50, 86 }, {  -4, -12, -9, 23, 79, 126 },
	  MSP_CARRIER(6.5), MSP_CARRIER(6.5),
	  0x00c6, 0x0140,   0x0120, 0x7c03},
};

struct CARRIER_DETECT {
	int   cdo;
	char *name;
};

static struct CARRIER_DETECT carrier_detect_main[] = {
	/* main carrier */
	{ MSP_CARRIER(4.5),        "4.5   NTSC"                   },
	{ MSP_CARRIER(5.5),        "5.5   PAL B/G"                },
	{ MSP_CARRIER(6.0),        "6.0   PAL I"                  },
	{ MSP_CARRIER(6.5),        "6.5   PAL D/K + SAT + SECAM"  }
};

static struct CARRIER_DETECT carrier_detect_55[] = {
	/* PAL B/G */
	{ MSP_CARRIER(5.7421875),  "5.742 PAL B/G FM-stereo"     },
	{ MSP_CARRIER(5.85),       "5.85  PAL B/G NICAM"         }
};

static struct CARRIER_DETECT carrier_detect_65[] = {
	/* PAL SAT / SECAM */
	{ MSP_CARRIER(5.85),       "5.85  PAL D/K + SECAM NICAM" },
	{ MSP_CARRIER(6.2578125),  "6.25  PAL D/K1 FM-stereo" },
	{ MSP_CARRIER(6.7421875),  "6.74  PAL D/K2 FM-stereo" },
	{ MSP_CARRIER(7.02),       "7.02  PAL SAT FM-stereo s/b" },
	{ MSP_CARRIER(7.20),       "7.20  PAL SAT FM-stereo s"   },
	{ MSP_CARRIER(7.38),       "7.38  PAL SAT FM-stereo b"   },
};

#define CARRIER_COUNT(x) (sizeof(x)/sizeof(struct CARRIER_DETECT))

/* ----------------------------------------------------------------------- */

static int scarts[3][9] = {
  /* MASK    IN1     IN2     IN1_DA  IN2_DA  IN3     IN4     MONO    MUTE   */
  {  0x0320, 0x0000, 0x0200, -1,     -1,     0x0300, 0x0020, 0x0100, 0x0320 },
  {  0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 },
  {  0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 },
};

static char *scart_names[] = {
  "mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute"
};

static void
msp3400c_set_scart(struct i2c_client *client, int in, int out)
{
	struct msp3400c *msp = i2c_get_clientdata(client);

	if (-1 == scarts[out][in])
		return;

	dprintk(KERN_DEBUG
		"msp34xx: scart switch: %s => %d\n",scart_names[in],out);
	msp->acb &= ~scarts[out][SCART_MASK];
	msp->acb |=  scarts[out][in];
	msp3400c_write(client,I2C_MSP3400C_DFP, 0x0013, msp->acb);
}

/* ------------------------------------------------------------------------ */

static void msp3400c_setcarrier(struct i2c_client *client, int cdo1, int cdo2)
{
	msp3400c_write(client,I2C_MSP3400C_DEM, 0x0093, cdo1 & 0xfff);
	msp3400c_write(client,I2C_MSP3400C_DEM, 0x009b, cdo1 >> 12);
	msp3400c_write(client,I2C_MSP3400C_DEM, 0x00a3, cdo2 & 0xfff);
	msp3400c_write(client,I2C_MSP3400C_DEM, 0x00ab, cdo2 >> 12);
	msp3400c_write(client,I2C_MSP3400C_DEM, 0x0056, 0); /*LOAD_REG_1/2*/
}

static void msp3400c_setvolume(struct i2c_client *client,
			       int muted, int volume, int balance)
{
	int val = 0, bal = 0;

	if (!muted) {
		/* 0x7f instead if 0x73 here has sound quality issues,
		 * probably due to overmodulation + clipping ... */
		val = (volume * 0x73 / 65535) << 8;
	}
	if (val) {
		bal = (balance / 256) - 128;
	}
	dprintk(KERN_DEBUG
		"msp34xx: setvolume: mute=%s %d:%d  v=0x%02x b=0x%02x\n",
		muted ? "on" : "off", volume, balance, val>>8, bal);
	msp3400c_write(client,I2C_MSP3400C_DFP, 0x0000, val); /* loudspeaker */
	msp3400c_write(client,I2C_MSP3400C_DFP, 0x0006, val); /* headphones  */
	msp3400c_write(client,I2C_MSP3400C_DFP, 0x0007,
		       muted ? 0x01 : (val | 0x01));
	msp3400c_write(client,I2C_MSP3400C_DFP, 0x0001, bal << 8);
}

static void msp3400c_setbass(struct i2c_client *client, int bass)
{
	int val = ((bass-32768) * 0x60 / 65535) << 8;

	dprintk(KERN_DEBUG "msp34xx: setbass: %d 0x%02x\n",bass, val>>8);
	msp3400c_write(client,I2C_MSP3400C_DFP, 0x0002, val); /* loudspeaker */
}

static void msp3400c_settreble(struct i2c_client *client, int treble)
{
	int val = ((treble-32768) * 0x60 / 65535) << 8;

	dprintk(KERN_DEBUG "msp34xx: settreble: %d 0x%02x\n",treble, val>>8);
	msp3400c_write(client,I2C_MSP3400C_DFP, 0x0003, val); /* loudspeaker */
}

static void msp3400c_setmode(struct i2c_client *client, int type)
{
	struct msp3400c *msp = i2c_get_clientdata(client);
	int i;

	dprintk(KERN_DEBUG "msp3400: setmode: %d\n",type);
	msp->mode       = type;
	msp->audmode    = V4L2_TUNER_MODE_MONO;
	msp->rxsubchans = V4L2_TUNER_SUB_MONO;

	msp3400c_write(client,I2C_MSP3400C_DEM, 0x00bb,          /* ad_cv */
		       msp_init_data[type].ad_cv);

	for (i = 5; i >= 0; i--)                                   /* fir 1 */
		msp3400c_write(client,I2C_MSP3400C_DEM, 0x0001,
			       msp_init_data[type].fir1[i]);

	msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0004); /* fir 2 */
	msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0040);
	msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0000);
	for (i = 5; i >= 0; i--)
		msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005,
			       msp_init_data[type].fir2[i]);

	msp3400c_write(client,I2C_MSP3400C_DEM, 0x0083,     /* MODE_REG */
		       msp_init_data[type].mode_reg);

	msp3400c_setcarrier(client, msp_init_data[type].cdo1,
			    msp_init_data[type].cdo2);

	msp3400c_write(client,I2C_MSP3400C_DEM, 0x0056, 0); /*LOAD_REG_1/2*/

	if (dolby) {
		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,
			       0x0520); /* I2S1 */
		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,
			       0x0620); /* I2S2 */
		msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,
			       msp_init_data[type].dfp_src);
	} else {
		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,
			       msp_init_data[type].dfp_src);
		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,
			       msp_init_data[type].dfp_src);
		msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,
			       msp_init_data[type].dfp_src);
	}
	msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,
		       msp_init_data[type].dfp_src);
	msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e,
		       msp_init_data[type].dfp_matrix);

	if (HAVE_NICAM(msp)) {
		/* nicam prescale */
		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0010, 0x5a00); /* was: 0x3000 */
	}
}

static int best_audio_mode(int rxsubchans)
{
	if (rxsubchans & V4L2_TUNER_SUB_STEREO)
		return V4L2_TUNER_MODE_STEREO;
	if (rxsubchans & V4L2_TUNER_SUB_LANG1)
		return V4L2_TUNER_MODE_LANG1;
	if (rxsubchans & V4L2_TUNER_SUB_LANG2)
		return V4L2_TUNER_MODE_LANG2;
	return V4L2_TUNER_MODE_MONO;
}

/* turn on/off nicam + stereo */
static void msp3400c_set_audmode(struct i2c_client *client, int audmode)
{
	static char *strmode[16] = {
#if __GNUC__ >= 3
		[ 0 ... 15 ]               = "invalid",
#endif
		[ V4L2_TUNER_MODE_MONO   ] = "mono",
		[ V4L2_TUNER_MODE_STEREO ] = "stereo",
		[ V4L2_TUNER_MODE_LANG1  ] = "lang1",
		[ V4L2_TUNER_MODE_LANG2  ] = "lang2",
	};
	struct msp3400c *msp = i2c_get_clientdata(client);
	int nicam=0; /* channel source: FM/AM or nicam */
	int src=0;

	BUG_ON(msp->opmode == OPMODE_SIMPLER);
	msp->audmode = audmode;

	/* switch demodulator */
	switch (msp->mode) {
	case MSP_MODE_FM_TERRA:
		dprintk(KERN_DEBUG "msp3400: FM setstereo: %s\n",
			strmode[audmode]);
		msp3400c_setcarrier(client,msp->second,msp->main);
		switch (audmode) {
		case V4L2_TUNER_MODE_STEREO:
			msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3001);
			break;
		case V4L2_TUNER_MODE_MONO:
		case V4L2_TUNER_MODE_LANG1:
		case V4L2_TUNER_MODE_LANG2:
			msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3000);
			break;
		}
		break;
	case MSP_MODE_FM_SAT:
		dprintk(KERN_DEBUG "msp3400: SAT setstereo: %s\n",
			strmode[audmode]);
		switch (audmode) {
		case V4L2_TUNER_MODE_MONO:
			msp3400c_setcarrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
			break;
		case V4L2_TUNER_MODE_STEREO:
			msp3400c_setcarrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
			break;
		case V4L2_TUNER_MODE_LANG1:
			msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
			break;
		case V4L2_TUNER_MODE_LANG2:
			msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
			break;
		}
		break;
	case MSP_MODE_FM_NICAM1:
	case MSP_MODE_FM_NICAM2:
	case MSP_MODE_AM_NICAM:
		dprintk(KERN_DEBUG "msp3400: NICAM setstereo: %s\n",
			strmode[audmode]);
		msp3400c_setcarrier(client,msp->second,msp->main);
		if (msp->nicam_on)
			nicam=0x0100;
		break;
	case MSP_MODE_BTSC:
		dprintk(KERN_DEBUG "msp3400: BTSC setstereo: %s\n",
			strmode[audmode]);
		nicam=0x0300;
		break;
	case MSP_MODE_EXTERN:
		dprintk(KERN_DEBUG "msp3400: extern setstereo: %s\n",
			strmode[audmode]);
		nicam = 0x0200;
		break;
	case MSP_MODE_FM_RADIO:
		dprintk(KERN_DEBUG "msp3400: FM-Radio setstereo: %s\n",
			strmode[audmode]);
		break;
	default:
		dprintk(KERN_DEBUG "msp3400: mono setstereo\n");
		return;
	}

	/* switch audio */
	switch (audmode) {
	case V4L2_TUNER_MODE_STEREO:
		src = 0x0020 | nicam;
#if 0
		/* spatial effect */
		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0005,0x4000);
#endif
		break;
	case V4L2_TUNER_MODE_MONO:
		if (msp->mode == MSP_MODE_AM_NICAM) {
			dprintk("msp3400: switching to AM mono\n");
			/* AM mono decoding is handled by tuner, not MSP chip */
			/* SCART switching control register */
			msp3400c_set_scart(client,SCART_MONO,0);
			src = 0x0200;
			break;
		}
	case V4L2_TUNER_MODE_LANG1:
		src = 0x0000 | nicam;
		break;
	case V4L2_TUNER_MODE_LANG2:
		src = 0x0010 | nicam;
		break;
	}
	dprintk(KERN_DEBUG
		"msp3400: setstereo final source/matrix = 0x%x\n", src);

	if (dolby) {
		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,0x0520);
		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,0x0620);
		msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src);
		msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,src);
	} else {
		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,src);
		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,src);
		msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src);
		msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,src);
	}
}

static void
msp3400c_print_mode(struct msp3400c *msp)
{
	if (msp->main == msp->second) {
		printk(KERN_DEBUG "msp3400: mono sound carrier: %d.%03d MHz\n",
		       msp->main/910000,(msp->main/910)%1000);
	} else {
		printk(KERN_DEBUG "msp3400: main sound carrier: %d.%03d MHz\n",
		       msp->main/910000,(msp->main/910)%1000);
	}
	if (msp->mode == MSP_MODE_FM_NICAM1 ||
	    msp->mode == MSP_MODE_FM_NICAM2)
		printk(KERN_DEBUG "msp3400: NICAM/FM carrier   : %d.%03d MHz\n",
		       msp->second/910000,(msp->second/910)%1000);
	if (msp->mode == MSP_MODE_AM_NICAM)
		printk(KERN_DEBUG "msp3400: NICAM/AM carrier   : %d.%03d MHz\n",
		       msp->second/910000,(msp->second/910)%1000);
	if (msp->mode == MSP_MODE_FM_TERRA &&
	    msp->main != msp->second) {
		printk(KERN_DEBUG "msp3400: FM-stereo carrier : %d.%03d MHz\n",
		       msp->second/910000,(msp->second/910)%1000);
	}
}

/* ----------------------------------------------------------------------- */

struct REGISTER_DUMP {
	int   addr;
	char *name;
};

static int
autodetect_stereo(struct i2c_client *client)
{
	struct msp3400c *msp = i2c_get_clientdata(client);
	int val;
	int rxsubchans = msp->rxsubchans;
	int newnicam   = msp->nicam_on;
	int update = 0;

	switch (msp->mode) {
	case MSP_MODE_FM_TERRA:
		val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x18);
		if (val > 32767)
			val -= 65536;
		dprintk(KERN_DEBUG
			"msp34xx: stereo detect register: %d\n",val);
		if (val > 4096) {
			rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_MONO;
		} else if (val < -4096) {
			rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
		} else {
			rxsubchans = V4L2_TUNER_SUB_MONO;
		}
		newnicam = 0;
		break;
	case MSP_MODE_FM_NICAM1:
	case MSP_MODE_FM_NICAM2:
	case MSP_MODE_AM_NICAM:
		val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x23);
		dprintk(KERN_DEBUG
			"msp34xx: nicam sync=%d, mode=%d\n",
			val & 1, (val & 0x1e) >> 1);

		if (val & 1) {
			/* nicam synced */
			switch ((val & 0x1e) >> 1)  {
			case 0:
			case 8:
				rxsubchans = V4L2_TUNER_SUB_STEREO;
				break;
			case 1:
			case 9:
				rxsubchans = V4L2_TUNER_SUB_MONO
					| V4L2_TUNER_SUB_LANG1;
				break;
			case 2:
			case 10:
				rxsubchans = V4L2_TUNER_SUB_MONO
					| V4L2_TUNER_SUB_LANG1
					| V4L2_TUNER_SUB_LANG2;
				break;
			default:
				rxsubchans = V4L2_TUNER_SUB_MONO;
				break;
			}
			newnicam=1;
		} else {
			newnicam = 0;
			rxsubchans = V4L2_TUNER_SUB_MONO;
		}
		break;
	case MSP_MODE_BTSC:
		val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x200);
		dprintk(KERN_DEBUG
			"msp3410: status=0x%x (pri=%s, sec=%s, %s%s%s)\n",
			val,
			(val & 0x0002) ? "no"     : "yes",
			(val & 0x0004) ? "no"     : "yes",
			(val & 0x0040) ? "stereo" : "mono",
			(val & 0x0080) ? ", nicam 2nd mono" : "",
			(val & 0x0100) ? ", bilingual/SAP"  : "");
		rxsubchans = V4L2_TUNER_SUB_MONO;
		if (val & 0x0040) rxsubchans |= V4L2_TUNER_SUB_STEREO;
		if (val & 0x0100) rxsubchans |= V4L2_TUNER_SUB_LANG1;
		break;
	}
	if (rxsubchans != msp->rxsubchans) {
		update = 1;
		dprintk(KERN_DEBUG "msp34xx: watch: rxsubchans %d => %d\n",
			msp->rxsubchans,rxsubchans);
		msp->rxsubchans = rxsubchans;
	}
	if (newnicam != msp->nicam_on) {
		update = 1;
		dprintk(KERN_DEBUG "msp34xx: watch: nicam %d => %d\n",
			msp->nicam_on,newnicam);
		msp->nicam_on = newnicam;
	}
	return update;
}

/*
 * A kernel thread for msp3400 control -- we don't want to block the
 * in the ioctl while doing the sound carrier & stereo detect
 */

static int msp34xx_sleep(struct msp3400c *msp, int timeout)
{
	DECLARE_WAITQUEUE(wait, current);

	add_wait_queue(&msp->wq, &wait);
	if (!kthread_should_stop()) {
		if (timeout < 0) {
			set_current_state(TASK_INTERRUPTIBLE);
			schedule();
		} else {
#if 0
			/* hmm, that one doesn't return on wakeup ... */
			msleep_interruptible(timeout);
#else
			set_current_state(TASK_INTERRUPTIBLE);
			schedule_timeout(msecs_to_jiffies(timeout));
#endif
		}
	}
	if (current->flags & PF_FREEZE)
		refrigerator(PF_FREEZE);
	remove_wait_queue(&msp->wq, &wait);
	return msp->restart;
}

/* stereo/multilang monitoring */
static void watch_stereo(struct i2c_client *client)
{
	struct msp3400c *msp = i2c_get_clientdata(client);

	if (autodetect_stereo(client))
		msp3400c_set_audmode(client,best_audio_mode(msp->rxsubchans));
	if (once)
		msp->watch_stereo = 0;
}

static int msp3400c_thread(void *data)
{
	struct i2c_client *client = data;
	struct msp3400c *msp = i2c_get_clientdata(client);
	struct CARRIER_DETECT *cd;
	int count, max1,max2,val1,val2, val,this;

	printk("msp3400: kthread started\n");
	for (;;) {
		d2printk("msp3400: thread: sleep\n");
		msp34xx_sleep(msp,-1);
		d2printk("msp3400: thread: wakeup\n");

	restart:
		dprintk("msp3410: thread: restart scan\n");
		msp->restart = 0;
		if (kthread_should_stop())
			break;

		if (VIDEO_MODE_RADIO == msp->norm ||
		    MSP_MODE_EXTERN  == msp->mode) {
			/* no carrier scan, just unmute */
			printk("msp3400: thread: no carrier scan\n");
			msp3400c_setvolume(client, msp->muted,
					   msp->volume, msp->balance);
			continue;
		}

		/* mute */
		msp3400c_setvolume(client, msp->muted, 0, 0);
		msp3400c_setmode(client, MSP_MODE_AM_DETECT /* +1 */ );
		val1 = val2 = 0;
		max1 = max2 = -1;
		msp->watch_stereo = 0;

		/* some time for the tuner to sync */
		if (msp34xx_sleep(msp,200))
			goto restart;

		/* carrier detect pass #1 -- main carrier */
		cd = carrier_detect_main; count = CARRIER_COUNT(carrier_detect_main);

		if (amsound && (msp->norm == VIDEO_MODE_SECAM)) {
			/* autodetect doesn't work well with AM ... */
			max1 = 3;
			count = 0;
			dprintk("msp3400: AM sound override\n");
		}

		for (this = 0; this < count; this++) {
			msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
			if (msp34xx_sleep(msp,100))
				goto restart;
			val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
			if (val > 32767)
				val -= 65536;
			if (val1 < val)
				val1 = val, max1 = this;
			dprintk("msp3400: carrier1 val: %5d / %s\n", val,cd[this].name);
		}

		/* carrier detect pass #2 -- second (stereo) carrier */
		switch (max1) {
		case 1: /* 5.5 */
			cd = carrier_detect_55;
			count = CARRIER_COUNT(carrier_detect_55);
			break;
		case 3: /* 6.5 */
			cd = carrier_detect_65;
			count = CARRIER_COUNT(carrier_detect_65);
			break;
		case 0: /* 4.5 */
		case 2: /* 6.0 */
		default:
			cd = NULL; count = 0;
			break;
		}

		if (amsound && (msp->norm == VIDEO_MODE_SECAM)) {
			/* autodetect doesn't work well with AM ... */
			cd = NULL; count = 0; max2 = 0;
		}
		for (this = 0; this < count; this++) {
			msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
			if (msp34xx_sleep(msp,100))
				goto restart;
			val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
			if (val > 32767)
				val -= 65536;
			if (val2 < val)
				val2 = val, max2 = this;
			dprintk("msp3400: carrier2 val: %5d / %s\n", val,cd[this].name);
		}

		/* programm the msp3400 according to the results */
		msp->main   = carrier_detect_main[max1].cdo;
		switch (max1) {
		case 1: /* 5.5 */
			if (max2 == 0) {
				/* B/G FM-stereo */
				msp->second = carrier_detect_55[max2].cdo;
				msp3400c_setmode(client, MSP_MODE_FM_TERRA);
				msp->nicam_on = 0;
				msp3400c_set_audmode(client, V4L2_TUNER_MODE_MONO);
				msp->watch_stereo = 1;
			} else if (max2 == 1 && HAVE_NICAM(msp)) {
				/* B/G NICAM */
				msp->second = carrier_detect_55[max2].cdo;
				msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
				msp->nicam_on = 1;
				msp3400c_setcarrier(client, msp->second, msp->main);
				msp->watch_stereo = 1;
			} else {
				goto no_second;
			}
			break;
		case 2: /* 6.0 */
			/* PAL I NICAM */
			msp->second = MSP_CARRIER(6.552);
			msp3400c_setmode(client, MSP_MODE_FM_NICAM2);
			msp->nicam_on = 1;
			msp3400c_setcarrier(client, msp->second, msp->main);
			msp->watch_stereo = 1;
			break;
		case 3: /* 6.5 */
			if (max2 == 1 || max2 == 2) {
				/* D/K FM-stereo */
				msp->second = carrier_detect_65[max2].cdo;
				msp3400c_setmode(client, MSP_MODE_FM_TERRA);
				msp->nicam_on = 0;
				msp3400c_set_audmode(client, V4L2_TUNER_MODE_MONO);
				msp->watch_stereo = 1;
			} else if (max2 == 0 &&
				   msp->norm == VIDEO_MODE_SECAM) {
				/* L NICAM or AM-mono */
				msp->second = carrier_detect_65[max2].cdo;
				msp3400c_setmode(client, MSP_MODE_AM_NICAM);
				msp->nicam_on = 0;
				msp3400c_set_audmode(client, V4L2_TUNER_MODE_MONO);
				msp3400c_setcarrier(client, msp->second, msp->main);
				/* volume prescale for SCART (AM mono input) */
				msp3400c_write(client,I2C_MSP3400C_DFP, 0x000d, 0x1900);
				msp->watch_stereo = 1;
			} else if (max2 == 0 && HAVE_NICAM(msp)) {
				/* D/K NICAM */
				msp->second = carrier_detect_65[max2].cdo;
				msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
				msp->nicam_on = 1;
				msp3400c_setcarrier(client, msp->second, msp->main);
				msp->watch_stereo = 1;
			} else {
				goto no_second;
			}
			break;
		case 0: /* 4.5 */
		default:
		no_second:
			msp->second = carrier_detect_main[max1].cdo;
			msp3400c_setmode(client, MSP_MODE_FM_TERRA);
			msp->nicam_on = 0;
			msp3400c_setcarrier(client, msp->second, msp->main);
			msp->rxsubchans = V4L2_TUNER_SUB_MONO;
			msp3400c_set_audmode(client, V4L2_TUNER_MODE_MONO);
			break;
		}

		/* unmute */
		msp3400c_setvolume(client, msp->muted,
				   msp->volume, msp->balance);
		if (debug)
			msp3400c_print_mode(msp);

		/* monitor tv audio mode */
		while (msp->watch_stereo) {
			if (msp34xx_sleep(msp,5000))
				goto restart;
			watch_stereo(client);
		}
	}
	dprintk(KERN_DEBUG "msp3400: thread: exit\n");
	return 0;
}

/* ----------------------------------------------------------------------- */
/* this one uses the automatic sound standard detection of newer           */
/* msp34xx chip versions                                                   */

static struct MODES {
	int retval;
	int main, second;
	char *name;
} modelist[] = {
	{ 0x0000, 0, 0, "ERROR" },
	{ 0x0001, 0, 0, "autodetect start" },
	{ 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72  M Dual FM-Stereo" },
	{ 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74  B/G Dual FM-Stereo" },
	{ 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25  D/K1 Dual FM-Stereo" },
	{ 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74  D/K2 Dual FM-Stereo" },
	{ 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5  D/K FM-Mono (HDEV3)" },
	{ 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85  B/G NICAM FM" },
	{ 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  L NICAM AM" },
	{ 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55  I NICAM FM" },
	{ 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  D/K NICAM FM" },
	{ 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  D/K NICAM FM (HDEV2)" },
	{ 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M BTSC-Stereo" },
	{ 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M BTSC-Mono + SAP" },
	{ 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M EIA-J Japan Stereo" },
	{ 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7  FM-Stereo Radio" },
	{ 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5  SAT-Mono" },
	{ 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20  SAT-Stereo" },
	{ 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2  SAT ADR" },
	{     -1, 0, 0, NULL }, /* EOF */
};

static inline const char *msp34xx_standard_mode_name(int mode)
{
	int i;
	for (i = 0; modelist[i].name != NULL; i++)
		if (modelist[i].retval == mode)
			return modelist[i].name;
	return "unknown";
}

static int msp34xx_modus(int norm)
{
	switch (norm) {
	case VIDEO_MODE_PAL:
#if 1
		/* experimental: not sure this works with all chip versions */
		return 0x7003;
#else
		/* previous value, try this if it breaks ... */
		return 0x1003;
#endif
	case VIDEO_MODE_NTSC:  /* BTSC */
		return 0x2003;
	case VIDEO_MODE_SECAM:
		return 0x0003;
	case VIDEO_MODE_RADIO:
		return 0x0003;
	case VIDEO_MODE_AUTO:
		return 0x2003;
	default:
		return 0x0003;
	}
}

static int msp34xx_standard(int norm)
{
	switch (norm) {
	case VIDEO_MODE_PAL:
		return 1;
	case VIDEO_MODE_NTSC:  /* BTSC */
		return 0x0020;
	case VIDEO_MODE_SECAM:
		return 1;
	case VIDEO_MODE_RADIO:
		return 0x0040;
	default:
		return 1;
	}
}

static int msp3410d_thread(void *data)
{
	struct i2c_client *client = data;
	struct msp3400c *msp = i2c_get_clientdata(client);
	int mode,val,i,std;

	printk("msp3410: daemon started\n");
	for (;;) {
		d2printk(KERN_DEBUG "msp3410: thread: sleep\n");
		msp34xx_sleep(msp,-1);
		d2printk(KERN_DEBUG "msp3410: thread: wakeup\n");

	restart:
		dprintk("msp3410: thread: restart scan\n");
		msp->restart = 0;
		if (kthread_should_stop())
			break;

		if (msp->mode == MSP_MODE_EXTERN) {
			/* no carrier scan needed, just unmute */
			dprintk(KERN_DEBUG "msp3410: thread: no carrier scan\n");
			msp3400c_setvolume(client, msp->muted,
					   msp->volume, msp->balance);
			continue;
		}

		/* put into sane state (and mute) */
		msp3400c_reset(client);

		/* some time for the tuner to sync */
		if (msp34xx_sleep(msp,200))
			goto restart;

		/* start autodetect */
		mode = msp34xx_modus(msp->norm);
		std  = msp34xx_standard(msp->norm);
		msp3400c_write(client, I2C_MSP3400C_DEM, 0x30, mode);
		msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, std);
		msp->watch_stereo = 0;

		if (debug)
			printk(KERN_DEBUG "msp3410: setting mode: %s (0x%04x)\n",
			       msp34xx_standard_mode_name(std) ,std);

		if (std != 1) {
			/* programmed some specific mode */
			val = std;
		} else {
			/* triggered autodetect */
			for (;;) {
				if (msp34xx_sleep(msp,100))
					goto restart;

				/* check results */
				val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x7e);
				if (val < 0x07ff)
					break;
				dprintk(KERN_DEBUG "msp3410: detection still in progress\n");
			}
		}
		for (i = 0; modelist[i].name != NULL; i++)
			if (modelist[i].retval == val)
				break;
		dprintk(KERN_DEBUG "msp3410: current mode: %s (0x%04x)\n",
			modelist[i].name ? modelist[i].name : "unknown",
			val);
		msp->main   = modelist[i].main;
		msp->second = modelist[i].second;

		if (amsound && (msp->norm == VIDEO_MODE_SECAM) && (val != 0x0009)) {
			/* autodetection has failed, let backup */
			dprintk(KERN_DEBUG "msp3410: autodetection failed,"
				" switching to backup mode: %s (0x%04x)\n",
				modelist[8].name ? modelist[8].name : "unknown",val);
			val = 0x0009;
			msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, val);
		}

		/* set various prescales */
		msp3400c_write(client, I2C_MSP3400C_DFP, 0x0d, 0x1900); /* scart */
		msp3400c_write(client, I2C_MSP3400C_DFP, 0x0e, 0x2403); /* FM */
		msp3400c_write(client, I2C_MSP3400C_DFP, 0x10, 0x5a00); /* nicam */

		/* set stereo */
		switch (val) {
		case 0x0008: /* B/G NICAM */
		case 0x000a: /* I NICAM */
			if (val == 0x0008)
				msp->mode = MSP_MODE_FM_NICAM1;
			else
				msp->mode = MSP_MODE_FM_NICAM2;
			/* just turn on stereo */
			msp->rxsubchans = V4L2_TUNER_SUB_STEREO;
			msp->nicam_on = 1;
			msp->watch_stereo = 1;
			msp3400c_set_audmode(client,V4L2_TUNER_MODE_STEREO);
			break;
		case 0x0009:
			msp->mode = MSP_MODE_AM_NICAM;
			msp->rxsubchans = V4L2_TUNER_SUB_MONO;
			msp->nicam_on = 1;
			msp3400c_set_audmode(client,V4L2_TUNER_MODE_MONO);
			msp->watch_stereo = 1;
			break;
		case 0x0020: /* BTSC */
			/* just turn on stereo */
			msp->mode = MSP_MODE_BTSC;
			msp->rxsubchans = V4L2_TUNER_SUB_STEREO;
			msp->nicam_on = 0;
			msp->watch_stereo = 1;
			msp3400c_set_audmode(client,V4L2_TUNER_MODE_STEREO);
			break;
		case 0x0040: /* FM radio */
			msp->mode   = MSP_MODE_FM_RADIO;
			msp->rxsubchans = V4L2_TUNER_SUB_STEREO;
			msp->audmode = V4L2_TUNER_MODE_STEREO;
			msp->nicam_on = 0;
			msp->watch_stereo = 0;
			/* not needed in theory if HAVE_RADIO(), but
			   short programming enables carrier mute */
			msp3400c_setmode(client,MSP_MODE_FM_RADIO);
			msp3400c_setcarrier(client, MSP_CARRIER(10.7),
					    MSP_CARRIER(10.7));
			/* scart routing */
			msp3400c_set_scart(client,SCART_IN2,0);
#if 0
			/* radio from SCART_IN2 */
			msp3400c_write(client,I2C_MSP3400C_DFP, 0x08, 0x0220);
			msp3400c_write(client,I2C_MSP3400C_DFP, 0x09, 0x0220);
			msp3400c_write(client,I2C_MSP3400C_DFP, 0x0b, 0x0220);
#else
			/* msp34xx does radio decoding */
			msp3400c_write(client,I2C_MSP3400C_DFP, 0x08, 0x0020);
			msp3400c_write(client,I2C_MSP3400C_DFP, 0x09, 0x0020);
			msp3400c_write(client,I2C_MSP3400C_DFP, 0x0b, 0x0020);
#endif
			break;
		case 0x0003:
		case 0x0004:
		case 0x0005:
			msp->mode   = MSP_MODE_FM_TERRA;
			msp->rxsubchans = V4L2_TUNER_SUB_MONO;
			msp->audmode = V4L2_TUNER_MODE_MONO;
			msp->nicam_on = 0;
			msp->watch_stereo = 1;
			break;
		}

		/* unmute, restore misc registers */
		msp3400c_setbass(client, msp->bass);
		msp3400c_settreble(client, msp->treble);
		msp3400c_setvolume(client, msp->muted,
				    msp->volume, msp->balance);
		msp3400c_write(client, I2C_MSP3400C_DFP, 0x0013, msp->acb);

		/* monitor tv audio mode */
		while (msp->watch_stereo) {
			if (msp34xx_sleep(msp,5000))
				goto restart;
			watch_stereo(client);
		}
	}
	dprintk(KERN_DEBUG "msp3410: thread: exit\n");
	return 0;
}

/* ----------------------------------------------------------------------- */
/* msp34xxG + (simpler no-thread)                                          */
/* this one uses both automatic standard detection and automatic sound     */
/* select which are available in the newer G versions                      */
/* struct msp: only norm, acb and source are really used in this mode      */

static void msp34xxg_set_source(struct i2c_client *client, int source);

/* (re-)initialize the msp34xxg, according to the current norm in msp->norm
 * return 0 if it worked, -1 if it failed
 */
static int msp34xxg_init(struct i2c_client *client)
{
	struct msp3400c *msp = i2c_get_clientdata(client);
	int modus,std;

	if (msp3400c_reset(client))
		return -1;

	/* make sure that input/output is muted (paranoid mode) */
	if (msp3400c_write(client,
			   I2C_MSP3400C_DFP,
			   0x13, /* ACB */
			   0x0f20 /* mute DSP input, mute SCART 1 */))
		return -1;

	/* step-by-step initialisation, as described in the manual */
	modus = msp34xx_modus(msp->norm);
	std   = msp34xx_standard(msp->norm);
	modus &= ~0x03; /* STATUS_CHANGE=0 */
	modus |= 0x01;  /* AUTOMATIC_SOUND_DETECTION=1 */
	if (msp3400c_write(client,
			   I2C_MSP3400C_DEM,
			   0x30/*MODUS*/,
			   modus))
		return -1;
	if (msp3400c_write(client,
			   I2C_MSP3400C_DEM,
			   0x20/*stanard*/,
			   std))
		return -1;

	/* write the dfps that may have an influence on
	   standard/audio autodetection right now */
	msp34xxg_set_source(client, msp->source);

	if (msp3400c_write(client, I2C_MSP3400C_DFP,
			   0x0e, /* AM/FM Prescale */
			   0x3000 /* default: [15:8] 75khz deviation */))
		return -1;

	if (msp3400c_write(client, I2C_MSP3400C_DFP,
			   0x10, /* NICAM Prescale */
			   0x5a00 /* default: 9db gain (as recommended) */))
		return -1;

	if (msp3400c_write(client,
			   I2C_MSP3400C_DEM,
			   0x20, /* STANDARD SELECT  */
			   standard /* default: 0x01 for automatic standard select*/))
		return -1;
	return 0;
}

static int msp34xxg_thread(void *data)
{
	struct i2c_client *client = data;
	struct msp3400c *msp = i2c_get_clientdata(client);
	int val, std, i;

	printk("msp34xxg: daemon started\n");
	msp->source = 1; /* default */
	for (;;) {
		d2printk(KERN_DEBUG "msp34xxg: thread: sleep\n");
		msp34xx_sleep(msp,-1);
		d2printk(KERN_DEBUG "msp34xxg: thread: wakeup\n");

	restart:
		dprintk("msp34xxg: thread: restart scan\n");
		msp->restart = 0;
		if (kthread_should_stop())
			break;

		/* setup the chip*/
		msp34xxg_init(client);
		std = standard;
		if (std != 0x01)
			goto unmute;

		/* watch autodetect */
		dprintk("msp34xxg: triggered autodetect, waiting for result\n");
		for (i = 0; i < 10; i++) {
			if (msp34xx_sleep(msp,100))
				goto restart;

			/* check results */
			val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x7e);
			if (val < 0x07ff) {
				std = val;
				break;
			}
			dprintk("msp34xxg: detection still in progress\n");
		}
		if (0x01 == std) {
			dprintk("msp34xxg: detection still in progress after 10 tries. giving up.\n");
			continue;
		}

	unmute:
		dprintk("msp34xxg: current mode: %s (0x%04x)\n",
			msp34xx_standard_mode_name(std), std);

		/* unmute: dispatch sound to scart output, set scart volume */
		dprintk("msp34xxg: unmute\n");

		msp3400c_setbass(client, msp->bass);
		msp3400c_settreble(client, msp->treble);
		msp3400c_setvolume(client, msp->muted, msp->volume, msp->balance);

		/* restore ACB */
		if (msp3400c_write(client,
				   I2C_MSP3400C_DFP,
				   0x13, /* ACB */
				   msp->acb))
			return -1;
	}
	dprintk(KERN_DEBUG "msp34xxg: thread: exit\n");
	return 0;
}

/* set the same 'source' for the loudspeaker, scart and quasi-peak detector
 * the value for source is the same as bit 15:8 of DFP registers 0x08,
 * 0x0a and 0x0c: 0=mono, 1=stereo or A|B, 2=SCART, 3=stereo or A, 4=stereo or B
 *
 * this function replaces msp3400c_setstereo
 */
static void msp34xxg_set_source(struct i2c_client *client, int source)
{
	struct msp3400c *msp = i2c_get_clientdata(client);

	/* fix matrix mode to stereo and let the msp choose what
	 * to output according to 'source', as recommended
	 * for MONO (source==0) downmixing set bit[7:0] to 0x30
	 */
	int value = (source&0x07)<<8|(source==0 ? 0x30:0x20);
	dprintk("msp34xxg: set source to %d (0x%x)\n", source, value);
	msp3400c_write(client,
		       I2C_MSP3400C_DFP,
		       0x08, /* Loudspeaker Output */
		       value);
	msp3400c_write(client,
		       I2C_MSP3400C_DFP,
		       0x0a, /* SCART1 DA Output */
		       value);
	msp3400c_write(client,
		       I2C_MSP3400C_DFP,
		       0x0c, /* Quasi-peak detector */
		       value);
	/*
	 * set identification threshold. Personally, I
	 * I set it to a higher value that the default
	 * of 0x190 to ignore noisy stereo signals.
	 * this needs tuning. (recommended range 0x00a0-0x03c0)
	 * 0x7f0 = forced mono mode
	 */
	msp3400c_write(client,
		       I2C_MSP3400C_DEM,
		       0x22, /* a2 threshold for stereo/bilingual */
		       stereo_threshold);
	msp->source=source;
}

static void msp34xxg_detect_stereo(struct i2c_client *client)
{
	struct msp3400c *msp = i2c_get_clientdata(client);

	int status = msp3400c_read(client,
				   I2C_MSP3400C_DEM,
				   0x0200 /* STATUS */);
	int is_bilingual = status&0x100;
	int is_stereo = status&0x40;

	msp->rxsubchans = 0;
	if (is_stereo)
		msp->rxsubchans |= V4L2_TUNER_SUB_STEREO;
	else
		msp->rxsubchans |= V4L2_TUNER_SUB_MONO;
	if (is_bilingual) {
		msp->rxsubchans |= V4L2_TUNER_SUB_LANG1|V4L2_TUNER_SUB_LANG2;
		/* I'm supposed to check whether it's SAP or not
		 * and set only LANG2/SAP in this case. Yet, the MSP
		 * does a lot of work to hide this and handle everything
		 * the same way. I don't want to work around it so unless
		 * this is a problem, I'll handle SAP just like lang1/lang2.
		 */
	}
	dprintk("msp34xxg: status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n",
		status, is_stereo, is_bilingual, msp->rxsubchans);
}

static void msp34xxg_set_audmode(struct i2c_client *client, int audmode)
{
	struct msp3400c *msp = i2c_get_clientdata(client);
	int source;

	switch (audmode) {
	case V4L2_TUNER_MODE_MONO:
		source=0; /* mono only */
		break;
	case V4L2_TUNER_MODE_STEREO:
		source=1; /* stereo or A|B, see comment in msp34xxg_get_v4l2_stereo() */
		/* problem: that could also mean 2 (scart input) */
		break;
	case V4L2_TUNER_MODE_LANG1:
		source=3; /* stereo or A */
		break;
	case V4L2_TUNER_MODE_LANG2:
		source=4; /* stereo or B */
		break;
	default:
		audmode = 0;
		source  = 1;
		break;
	}
	msp->audmode = audmode;
	msp34xxg_set_source(client, source);
}


/* ----------------------------------------------------------------------- */

static int msp_attach(struct i2c_adapter *adap, int addr, int kind);
static int msp_detach(struct i2c_client *client);
static int msp_probe(struct i2c_adapter *adap);
static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg);

static int msp_suspend(struct device * dev, u32 state, u32 level);
static int msp_resume(struct device * dev, u32 level);

static void msp_wake_thread(struct i2c_client *client);

static struct i2c_driver driver = {
	.owner          = THIS_MODULE,
	.name           = "i2c msp3400 driver",
        .id             = I2C_DRIVERID_MSP3400,
        .flags          = I2C_DF_NOTIFY,
        .attach_adapter = msp_probe,
        .detach_client  = msp_detach,
        .command        = msp_command,
	.driver = {
		.suspend = msp_suspend,
		.resume  = msp_resume,
	},
};

static struct i2c_client client_template =
{
	I2C_DEVNAME("(unset)"),
	.flags     = I2C_CLIENT_ALLOW_USE,
        .driver    = &driver,
};

static int msp_attach(struct i2c_adapter *adap, int addr, int kind)
{
	struct msp3400c *msp;
        struct i2c_client *c;
	int (*thread_func)(void *data) = NULL;

        client_template.adapter = adap;
        client_template.addr = addr;

        if (-1 == msp3400c_reset(&client_template)) {
                dprintk("msp3400: no chip found\n");
                return -1;
        }

        if (NULL == (c = kmalloc(sizeof(struct i2c_client),GFP_KERNEL)))
                return -ENOMEM;
        memcpy(c,&client_template,sizeof(struct i2c_client));
	if (NULL == (msp = kmalloc(sizeof(struct msp3400c),GFP_KERNEL))) {
		kfree(c);
		return -ENOMEM;
	}

	memset(msp,0,sizeof(struct msp3400c));
	msp->volume  = 58880;  /* 0db gain */
	msp->balance = 32768;
	msp->bass    = 32768;
	msp->treble  = 32768;
	msp->input   = -1;
	msp->muted   = 1;

	i2c_set_clientdata(c, msp);
	init_waitqueue_head(&msp->wq);

	if (-1 == msp3400c_reset(c)) {
		kfree(msp);
		kfree(c);
		dprintk("msp3400: no chip found\n");
		return -1;
	}

	msp->rev1 = msp3400c_read(c, I2C_MSP3400C_DFP, 0x1e);
	if (-1 != msp->rev1)
		msp->rev2 = msp3400c_read(c, I2C_MSP3400C_DFP, 0x1f);
	if ((-1 == msp->rev1) || (0 == msp->rev1 && 0 == msp->rev2)) {
		kfree(msp);
		kfree(c);
		printk("msp3400: error while reading chip version\n");
		return -1;
	}

#if 0
	/* this will turn on a 1kHz beep - might be useful for debugging... */
	msp3400c_write(c,I2C_MSP3400C_DFP, 0x0014, 0x1040);
#endif
	msp3400c_setvolume(c, msp->muted, msp->volume, msp->balance);

	snprintf(c->name, sizeof(c->name), "MSP34%02d%c-%c%d",
		 (msp->rev2>>8)&0xff, (msp->rev1&0xff)+'@',
		 ((msp->rev1>>8)&0xff)+'@', msp->rev2&0x1f);

	msp->opmode = opmode;
	if (OPMODE_AUTO == msp->opmode) {
		if (HAVE_SIMPLER(msp))
			msp->opmode = OPMODE_SIMPLER;
		else if (HAVE_SIMPLE(msp))
			msp->opmode = OPMODE_SIMPLE;
		else
			msp->opmode = OPMODE_MANUAL;
	}

	/* hello world :-) */
	printk(KERN_INFO "msp34xx: init: chip=%s",i2c_clientname(c));
	if (HAVE_NICAM(msp))
		printk(" +nicam");
	if (HAVE_SIMPLE(msp))
		printk(" +simple");
	if (HAVE_SIMPLER(msp))
		printk(" +simpler");
	if (HAVE_RADIO(msp))
		printk(" +radio");

	/* version-specific initialization */
	switch (msp->opmode) {
	case OPMODE_MANUAL:
		printk(" mode=manual");
		thread_func = msp3400c_thread;
		break;
	case OPMODE_SIMPLE:
		printk(" mode=simple");
		thread_func = msp3410d_thread;
		break;
	case OPMODE_SIMPLER:
		printk(" mode=simpler");
		thread_func = msp34xxg_thread;
		break;
	}
	printk("\n");

	/* startup control thread if needed */
	if (thread_func) {
		msp->kthread = kthread_run(thread_func, c, "msp34xx");
		if (NULL == msp->kthread)
			printk(KERN_WARNING "msp34xx: kernel_thread() failed\n");
		msp_wake_thread(c);
	}

	/* done */
        i2c_attach_client(c);
	return 0;
}

static int msp_detach(struct i2c_client *client)
{
	struct msp3400c *msp  = i2c_get_clientdata(client);

	/* shutdown control thread */
	if (msp->kthread >= 0) {
		msp->restart = 1;
		kthread_stop(msp->kthread);
	}
    	msp3400c_reset(client);

	i2c_detach_client(client);
	kfree(msp);
	kfree(client);
	return 0;
}

static int msp_probe(struct i2c_adapter *adap)
{
	if (adap->class & I2C_CLASS_TV_ANALOG)
		return i2c_probe(adap, &addr_data, msp_attach);
	return 0;
}

static void msp_wake_thread(struct i2c_client *client)
{
	struct msp3400c *msp  = i2c_get_clientdata(client);

	if (NULL == msp->kthread)
		return;
	msp3400c_setvolume(client,msp->muted,0,0);
	msp->watch_stereo = 0;
	msp->restart = 1;
	wake_up_interruptible(&msp->wq);
}

/* ----------------------------------------------------------------------- */

static int mode_v4l2_to_v4l1(int rxsubchans)
{
	int mode = 0;

	if (rxsubchans & V4L2_TUNER_SUB_STEREO)
		mode |= VIDEO_SOUND_STEREO;
	if (rxsubchans & V4L2_TUNER_SUB_LANG2)
		mode |= VIDEO_SOUND_LANG2;
	if (rxsubchans & V4L2_TUNER_SUB_LANG1)
		mode |= VIDEO_SOUND_LANG1;
	if (0 == mode)
		mode |= VIDEO_SOUND_MONO;
	return mode;
}

static int mode_v4l1_to_v4l2(int mode)
{
	if (mode & VIDEO_SOUND_STEREO)
		return V4L2_TUNER_MODE_STEREO;
	if (mode & VIDEO_SOUND_LANG2)
		return V4L2_TUNER_MODE_LANG2;
	if (mode & VIDEO_SOUND_LANG1)
		return V4L2_TUNER_MODE_LANG1;
	return V4L2_TUNER_MODE_MONO;
}

static void msp_any_detect_stereo(struct i2c_client *client)
{
	struct msp3400c *msp  = i2c_get_clientdata(client);

	switch (msp->opmode) {
	case OPMODE_MANUAL:
	case OPMODE_SIMPLE:
		autodetect_stereo(client);
		break;
	case OPMODE_SIMPLER:
		msp34xxg_detect_stereo(client);
		break;
	}
}

static void msp_any_set_audmode(struct i2c_client *client, int audmode)
{
	struct msp3400c *msp  = i2c_get_clientdata(client);

	switch (msp->opmode) {
	case OPMODE_MANUAL:
	case OPMODE_SIMPLE:
		msp->watch_stereo = 0;
		msp3400c_set_audmode(client, audmode);
		break;
	case OPMODE_SIMPLER:
		msp34xxg_set_audmode(client, audmode);
		break;
	}
}

static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
{
	struct msp3400c *msp  = i2c_get_clientdata(client);
        __u16           *sarg = arg;
	int scart = 0;

	switch (cmd) {

	case AUDC_SET_INPUT:
		dprintk(KERN_DEBUG "msp34xx: AUDC_SET_INPUT(%d)\n",*sarg);
		if (*sarg == msp->input)
			break;
		msp->input = *sarg;
		switch (*sarg) {
		case AUDIO_RADIO:
			/* Hauppauge uses IN2 for the radio */
			msp->mode   = MSP_MODE_FM_RADIO;
			scart       = SCART_IN2;
			break;
		case AUDIO_EXTERN_1:
			/* IN1 is often used for external input ... */
			msp->mode   = MSP_MODE_EXTERN;
			scart       = SCART_IN1;
			break;
		case AUDIO_EXTERN_2:
			/* ... sometimes it is IN2 through ;) */
			msp->mode   = MSP_MODE_EXTERN;
			scart       = SCART_IN2;
			break;
		case AUDIO_TUNER:
			msp->mode   = -1;
			break;
		default:
			if (*sarg & AUDIO_MUTE)
				msp3400c_set_scart(client,SCART_MUTE,0);
			break;
		}
		if (scart) {
			msp->rxsubchans = V4L2_TUNER_SUB_STEREO;
			msp->audmode = V4L2_TUNER_MODE_STEREO;
			msp3400c_set_scart(client,scart,0);
			msp3400c_write(client,I2C_MSP3400C_DFP,0x000d,0x1900);
			if (msp->opmode != OPMODE_SIMPLER)
				msp3400c_set_audmode(client, msp->audmode);
		}
		msp_wake_thread(client);
		break;

	case AUDC_SET_RADIO:
		dprintk(KERN_DEBUG "msp34xx: AUDC_SET_RADIO\n");
		msp->norm = VIDEO_MODE_RADIO;
		dprintk(KERN_DEBUG "msp34xx: switching to radio mode\n");
		msp->watch_stereo = 0;
		switch (msp->opmode) {
		case OPMODE_MANUAL:
			/* set msp3400 to FM radio mode */
			msp3400c_setmode(client,MSP_MODE_FM_RADIO);
			msp3400c_setcarrier(client, MSP_CARRIER(10.7),
					    MSP_CARRIER(10.7));
			msp3400c_setvolume(client, msp->muted,
					   msp->volume, msp->balance);
			break;
		case OPMODE_SIMPLE:
		case OPMODE_SIMPLER:
			/* the thread will do for us */
			msp_wake_thread(client);
			break;
		}
		break;

	/* --- v4l ioctls --- */
	/* take care: bttv does userspace copying, we'll get a
	   kernel pointer here... */
	case VIDIOCGAUDIO:
	{
		struct video_audio *va = arg;

		dprintk(KERN_DEBUG "msp34xx: VIDIOCGAUDIO\n");
		va->flags |= VIDEO_AUDIO_VOLUME |
			VIDEO_AUDIO_BASS |
			VIDEO_AUDIO_TREBLE |
			VIDEO_AUDIO_MUTABLE;
		if (msp->muted)
			va->flags |= VIDEO_AUDIO_MUTE;

		va->volume = msp->volume;
		va->balance = (va->volume) ? msp->balance : 32768;
		va->bass = msp->bass;
		va->treble = msp->treble;

		msp_any_detect_stereo(client);
		va->mode = mode_v4l2_to_v4l1(msp->rxsubchans);
		break;
	}
	case VIDIOCSAUDIO:
	{
		struct video_audio *va = arg;

		dprintk(KERN_DEBUG "msp34xx: VIDIOCSAUDIO\n");
		msp->muted = (va->flags & VIDEO_AUDIO_MUTE);
		msp->volume = va->volume;
		msp->balance = va->balance;
		msp->bass = va->bass;
		msp->treble = va->treble;

		msp3400c_setvolume(client, msp->muted,
				   msp->volume, msp->balance);
		msp3400c_setbass(client,msp->bass);
		msp3400c_settreble(client,msp->treble);

		if (va->mode != 0 && msp->norm != VIDEO_MODE_RADIO)
			msp_any_set_audmode(client,mode_v4l1_to_v4l2(va->mode));
		break;
	}
	case VIDIOCSCHAN:
	{
		struct video_channel *vc = arg;

		dprintk(KERN_DEBUG "msp34xx: VIDIOCSCHAN (norm=%d)\n",vc->norm);
		msp->norm = vc->norm;
		msp_wake_thread(client);
		break;
	}

	case VIDIOCSFREQ:
	case VIDIOC_S_FREQUENCY:
	{
		/* new channel -- kick audio carrier scan */
		dprintk(KERN_DEBUG "msp34xx: VIDIOCSFREQ\n");
		msp_wake_thread(client);
		break;
	}

	/* --- v4l2 ioctls --- */
	case VIDIOC_G_TUNER:
	{
		struct v4l2_tuner *vt = arg;

		msp_any_detect_stereo(client);
		vt->audmode    = msp->audmode;
		vt->rxsubchans = msp->rxsubchans;
		vt->capability = V4L2_TUNER_CAP_STEREO |
			V4L2_TUNER_CAP_LANG1|
			V4L2_TUNER_CAP_LANG2;
		break;
	}
	case VIDIOC_S_TUNER:
	{
		struct v4l2_tuner *vt=(struct v4l2_tuner *)arg;

		/* only set audmode */
		if (vt->audmode != -1 && vt->audmode != 0)
			msp_any_set_audmode(client, vt->audmode);
		break;
	}

	/* msp34xx specific */
	case MSP_SET_MATRIX:
	{
		struct msp_matrix *mspm = arg;

		dprintk(KERN_DEBUG "msp34xx: MSP_SET_MATRIX\n");
		msp3400c_set_scart(client, mspm->input, mspm->output);
		break;
	}

	default:
		/* nothing */
		break;
	}
	return 0;
}

static int msp_suspend(struct device * dev, u32 state, u32 level)
{
	struct i2c_client *c = container_of(dev, struct i2c_client, dev);

	dprintk("msp34xx: suspend\n");
	msp3400c_reset(c);
	return 0;
}

static int msp_resume(struct device * dev, u32 level)
{
	struct i2c_client *c = container_of(dev, struct i2c_client, dev);

	dprintk("msp34xx: resume\n");
	msp_wake_thread(c);
	return 0;
}

/* ----------------------------------------------------------------------- */

static int __init msp3400_init_module(void)
{
	return i2c_add_driver(&driver);
}

static void __exit msp3400_cleanup_module(void)
{
	i2c_del_driver(&driver);
}

module_init(msp3400_init_module);
module_exit(msp3400_cleanup_module);

/*
 * Overrides for Emacs so that we follow Linus's tabbing style.
 * ---------------------------------------------------------------------------
 * Local variables:
 * c-basic-offset: 8
 * End:
 */
OpenPOWER on IntegriCloud