aboutsummaryrefslogtreecommitdiff
path: root/drivers/media/video/ivtv/ivtv-ioctl.c
blob: d508b5d0538cfb71bfa9b7b2c137eebfcbdaafd4 (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
/*
    ioctl system call
    Copyright (C) 2003-2004  Kevin Thayer <nufan_wfk at yahoo.com>
    Copyright (C) 2005-2007  Hans Verkuil <hverkuil@xs4all.nl>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "ivtv-driver.h"
#include "ivtv-version.h"
#include "ivtv-mailbox.h"
#include "ivtv-i2c.h"
#include "ivtv-queue.h"
#include "ivtv-fileops.h"
#include "ivtv-vbi.h"
#include "ivtv-routing.h"
#include "ivtv-streams.h"
#include "ivtv-yuv.h"
#include "ivtv-ioctl.h"
#include "ivtv-gpio.h"
#include "ivtv-controls.h"
#include "ivtv-cards.h"
#include <media/saa7127.h>
#include <media/tveeprom.h>
#include <media/v4l2-chip-ident.h>
#include <linux/dvb/audio.h>
#include <linux/i2c-id.h>

u16 service2vbi(int type)
{
	switch (type) {
		case V4L2_SLICED_TELETEXT_B:
			return IVTV_SLICED_TYPE_TELETEXT_B;
		case V4L2_SLICED_CAPTION_525:
			return IVTV_SLICED_TYPE_CAPTION_525;
		case V4L2_SLICED_WSS_625:
			return IVTV_SLICED_TYPE_WSS_625;
		case V4L2_SLICED_VPS:
			return IVTV_SLICED_TYPE_VPS;
		default:
			return 0;
	}
}

static int valid_service_line(int field, int line, int is_pal)
{
	return (is_pal && line >= 6 && (line != 23 || field == 0)) ||
	       (!is_pal && line >= 10 && line < 22);
}

static u16 select_service_from_set(int field, int line, u16 set, int is_pal)
{
	u16 valid_set = (is_pal ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525);
	int i;

	set = set & valid_set;
	if (set == 0 || !valid_service_line(field, line, is_pal)) {
		return 0;
	}
	if (!is_pal) {
		if (line == 21 && (set & V4L2_SLICED_CAPTION_525))
			return V4L2_SLICED_CAPTION_525;
	}
	else {
		if (line == 16 && field == 0 && (set & V4L2_SLICED_VPS))
			return V4L2_SLICED_VPS;
		if (line == 23 && field == 0 && (set & V4L2_SLICED_WSS_625))
			return V4L2_SLICED_WSS_625;
		if (line == 23)
			return 0;
	}
	for (i = 0; i < 32; i++) {
		if ((1 << i) & set)
			return 1 << i;
	}
	return 0;
}

void expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
{
	u16 set = fmt->service_set;
	int f, l;

	fmt->service_set = 0;
	for (f = 0; f < 2; f++) {
		for (l = 0; l < 24; l++) {
			fmt->service_lines[f][l] = select_service_from_set(f, l, set, is_pal);
		}
	}
}

static int check_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
{
	int f, l;
	u16 set = 0;

	for (f = 0; f < 2; f++) {
		for (l = 0; l < 24; l++) {
			fmt->service_lines[f][l] = select_service_from_set(f, l, fmt->service_lines[f][l], is_pal);
			set |= fmt->service_lines[f][l];
		}
	}
	return set != 0;
}

u16 get_service_set(struct v4l2_sliced_vbi_format *fmt)
{
	int f, l;
	u16 set = 0;

	for (f = 0; f < 2; f++) {
		for (l = 0; l < 24; l++) {
			set |= fmt->service_lines[f][l];
		}
	}
	return set;
}

static const struct {
	v4l2_std_id  std;
	char        *name;
} enum_stds[] = {
	{ V4L2_STD_PAL_BG | V4L2_STD_PAL_H, "PAL-BGH" },
	{ V4L2_STD_PAL_DK,    "PAL-DK"    },
	{ V4L2_STD_PAL_I,     "PAL-I"     },
	{ V4L2_STD_PAL_M,     "PAL-M"     },
	{ V4L2_STD_PAL_N,     "PAL-N"     },
	{ V4L2_STD_PAL_Nc,    "PAL-Nc"    },
	{ V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H, "SECAM-BGH" },
	{ V4L2_STD_SECAM_DK,  "SECAM-DK"  },
	{ V4L2_STD_SECAM_L,   "SECAM-L"   },
	{ V4L2_STD_SECAM_LC,  "SECAM-L'"  },
	{ V4L2_STD_NTSC_M,    "NTSC-M"    },
	{ V4L2_STD_NTSC_M_JP, "NTSC-J"    },
	{ V4L2_STD_NTSC_M_KR, "NTSC-K"    },
};

static const struct v4l2_standard ivtv_std_60hz =
{
	.frameperiod = {.numerator = 1001, .denominator = 30000},
	.framelines = 525,
};

static const struct v4l2_standard ivtv_std_50hz =
{
	.frameperiod = {.numerator = 1, .denominator = 25},
	.framelines = 625,
};

void ivtv_set_osd_alpha(struct ivtv *itv)
{
	ivtv_vapi(itv, CX2341X_OSD_SET_GLOBAL_ALPHA, 3,
		itv->osd_global_alpha_state, itv->osd_global_alpha, !itv->osd_local_alpha_state);
	ivtv_vapi(itv, CX2341X_OSD_SET_CHROMA_KEY, 2, itv->osd_chroma_key_state, itv->osd_chroma_key);
}

int ivtv_set_speed(struct ivtv *itv, int speed)
{
	u32 data[CX2341X_MBOX_MAX_DATA];
	struct ivtv_stream *s;
	int single_step = (speed == 1 || speed == -1);
	DEFINE_WAIT(wait);

	if (speed == 0) speed = 1000;

	/* No change? */
	if (speed == itv->speed && !single_step)
		return 0;

	s = &itv->streams[IVTV_DEC_STREAM_TYPE_MPG];

	if (single_step && (speed < 0) == (itv->speed < 0)) {
		/* Single step video and no need to change direction */
		ivtv_vapi(itv, CX2341X_DEC_STEP_VIDEO, 1, 0);
		itv->speed = speed;
		return 0;
	}
	if (single_step)
		/* Need to change direction */
		speed = speed < 0 ? -1000 : 1000;

	data[0] = (speed > 1000 || speed < -1000) ? 0x80000000 : 0;
	data[0] |= (speed > 1000 || speed < -1500) ? 0x40000000 : 0;
	data[1] = (speed < 0);
	data[2] = speed < 0 ? 3 : 7;
	data[3] = itv->params.video_b_frames;
	data[4] = (speed == 1500 || speed == 500) ? itv->speed_mute_audio : 0;
	data[5] = 0;
	data[6] = 0;

	if (speed == 1500 || speed == -1500) data[0] |= 1;
	else if (speed == 2000 || speed == -2000) data[0] |= 2;
	else if (speed > -1000 && speed < 0) data[0] |= (-1000 / speed);
	else if (speed < 1000 && speed > 0) data[0] |= (1000 / speed);

	/* If not decoding, just change speed setting */
	if (atomic_read(&itv->decoding) > 0) {
		int got_sig = 0;

		/* Stop all DMA and decoding activity */
		ivtv_vapi(itv, CX2341X_DEC_PAUSE_PLAYBACK, 1, 0);

		/* Wait for any DMA to finish */
		prepare_to_wait(&itv->dma_waitq, &wait, TASK_INTERRUPTIBLE);
		while (itv->i_flags & IVTV_F_I_DMA) {
			got_sig = signal_pending(current);
			if (got_sig)
				break;
			got_sig = 0;
			schedule();
		}
		finish_wait(&itv->dma_waitq, &wait);
		if (got_sig)
			return -EINTR;

		/* Change Speed safely */
		ivtv_api(itv, CX2341X_DEC_SET_PLAYBACK_SPEED, 7, data);
		IVTV_DEBUG_INFO("Setting Speed to 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
				data[0], data[1], data[2], data[3], data[4], data[5], data[6]);
	}
	if (single_step) {
		speed = (speed < 0) ? -1 : 1;
		ivtv_vapi(itv, CX2341X_DEC_STEP_VIDEO, 1, 0);
	}
	itv->speed = speed;
	return 0;
}

static int ivtv_validate_speed(int cur_speed, int new_speed)
{
	int fact = new_speed < 0 ? -1 : 1;
	int s;

	if (cur_speed == 0)
		cur_speed = 1000;
	if (new_speed < 0)
		new_speed = -new_speed;
	if (cur_speed < 0)
		cur_speed = -cur_speed;

	if (cur_speed <= new_speed) {
		if (new_speed > 1500)
			return fact * 2000;
		if (new_speed > 1000)
			return fact * 1500;
	}
	else {
		if (new_speed >= 2000)
			return fact * 2000;
		if (new_speed >= 1500)
			return fact * 1500;
		if (new_speed >= 1000)
			return fact * 1000;
	}
	if (new_speed == 0)
		return 1000;
	if (new_speed == 1 || new_speed == 1000)
		return fact * new_speed;

	s = new_speed;
	new_speed = 1000 / new_speed;
	if (1000 / cur_speed == new_speed)
		new_speed += (cur_speed < s) ? -1 : 1;
	if (new_speed > 60) return 1000 / (fact * 60);
	return 1000 / (fact * new_speed);
}

static int ivtv_video_command(struct ivtv *itv, struct ivtv_open_id *id,
		struct video_command *vc, int try)
{
	struct ivtv_stream *s = &itv->streams[IVTV_DEC_STREAM_TYPE_MPG];

	if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
		return -EINVAL;

	switch (vc->cmd) {
	case VIDEO_CMD_PLAY: {
		vc->flags = 0;
		vc->play.speed = ivtv_validate_speed(itv->speed, vc->play.speed);
		if (vc->play.speed < 0)
			vc->play.format = VIDEO_PLAY_FMT_GOP;
		if (try) break;

		if (ivtv_set_output_mode(itv, OUT_MPG) != OUT_MPG)
			return -EBUSY;
		if (test_and_clear_bit(IVTV_F_I_DEC_PAUSED, &itv->i_flags)) {
			/* forces ivtv_set_speed to be called */
			itv->speed = 0;
		}
		return ivtv_start_decoding(id, vc->play.speed);
	}

	case VIDEO_CMD_STOP:
		vc->flags &= VIDEO_CMD_STOP_IMMEDIATELY|VIDEO_CMD_STOP_TO_BLACK;
		if (vc->flags & VIDEO_CMD_STOP_IMMEDIATELY)
			vc->stop.pts = 0;
		if (try) break;
		if (atomic_read(&itv->decoding) == 0)
			return 0;
		if (itv->output_mode != OUT_MPG)
			return -EBUSY;

		itv->output_mode = OUT_NONE;
		return ivtv_stop_v4l2_decode_stream(s, vc->flags, vc->stop.pts);

	case VIDEO_CMD_FREEZE:
		vc->flags &= VIDEO_CMD_FREEZE_TO_BLACK;
		if (try) break;
		if (itv->output_mode != OUT_MPG)
			return -EBUSY;
		if (atomic_read(&itv->decoding) > 0) {
			ivtv_vapi(itv, CX2341X_DEC_PAUSE_PLAYBACK, 1,
				(vc->flags & VIDEO_CMD_FREEZE_TO_BLACK) ? 1 : 0);
			set_bit(IVTV_F_I_DEC_PAUSED, &itv->i_flags);
		}
		break;

	case VIDEO_CMD_CONTINUE:
		vc->flags = 0;
		if (try) break;
		if (itv->output_mode != OUT_MPG)
			return -EBUSY;
		if (test_and_clear_bit(IVTV_F_I_DEC_PAUSED, &itv->i_flags)) {
			int speed = itv->speed;
			itv->speed = 0;
			return ivtv_start_decoding(id, speed);
		}
		break;

	default:
		return -EINVAL;
	}
	return 0;
}

static int ivtv_itvc(struct ivtv *itv, unsigned int cmd, void *arg)
{
	struct v4l2_register *regs = arg;
	unsigned long flags;
	volatile u8 __iomem *reg_start;

	if (!capable(CAP_SYS_ADMIN))
		return -EPERM;
	if (regs->reg >= IVTV_REG_OFFSET && regs->reg < IVTV_REG_OFFSET + IVTV_REG_SIZE)
		reg_start = itv->reg_mem - IVTV_REG_OFFSET;
	else if (itv->has_cx23415 && regs->reg >= IVTV_DECODER_OFFSET &&
			regs->reg < IVTV_DECODER_OFFSET + IVTV_DECODER_SIZE)
		reg_start = itv->dec_mem - IVTV_DECODER_OFFSET;
	else if (regs->reg >= 0 && regs->reg < IVTV_ENCODER_SIZE)
		reg_start = itv->enc_mem;
	else
		return -EINVAL;

	spin_lock_irqsave(&ivtv_cards_lock, flags);
	if (cmd == VIDIOC_DBG_G_REGISTER) {
		regs->val = readl(regs->reg + reg_start);
	} else {
		writel(regs->val, regs->reg + reg_start);
	}
	spin_unlock_irqrestore(&ivtv_cards_lock, flags);
	return 0;
}

static int ivtv_get_fmt(struct ivtv *itv, int streamtype, struct v4l2_format *fmt)
{
	switch (fmt->type) {
	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
		if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
			return -EINVAL;
		fmt->fmt.pix.width = itv->main_rect.width;
		fmt->fmt.pix.height = itv->main_rect.height;
		fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
		fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
		if (streamtype == IVTV_DEC_STREAM_TYPE_YUV) {
			switch (itv->yuv_info.lace_mode & IVTV_YUV_MODE_MASK) {
			case IVTV_YUV_MODE_INTERLACED:
				fmt->fmt.pix.field = (itv->yuv_info.lace_mode & IVTV_YUV_SYNC_MASK) ?
					V4L2_FIELD_INTERLACED_BT : V4L2_FIELD_INTERLACED_TB;
				break;
			case IVTV_YUV_MODE_PROGRESSIVE:
				fmt->fmt.pix.field = V4L2_FIELD_NONE;
				break;
			default:
				fmt->fmt.pix.field = V4L2_FIELD_ANY;
				break;
			}
			fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_HM12;
			fmt->fmt.pix.bytesperline = 720;
			fmt->fmt.pix.width = itv->yuv_info.v4l2_src_w;
			fmt->fmt.pix.height = itv->yuv_info.v4l2_src_h;
			/* YUV size is (Y=(h*w) + UV=(h*(w/2))) */
			fmt->fmt.pix.sizeimage =
				1080 * ((fmt->fmt.pix.height + 31) & ~31);
		} else if (streamtype == IVTV_ENC_STREAM_TYPE_YUV) {
			fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_HM12;
			/* YUV size is (Y=(h*w) + UV=(h*(w/2))) */
			fmt->fmt.pix.sizeimage =
				fmt->fmt.pix.height * fmt->fmt.pix.width +
				fmt->fmt.pix.height * (fmt->fmt.pix.width / 2);
		} else {
			fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
			fmt->fmt.pix.sizeimage = 128 * 1024;
		}
		break;

	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
		fmt->fmt.pix.width = itv->params.width;
		fmt->fmt.pix.height = itv->params.height;
		fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
		fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
		if (streamtype == IVTV_ENC_STREAM_TYPE_YUV ||
				streamtype == IVTV_DEC_STREAM_TYPE_YUV) {
			fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_HM12;
			/* YUV size is (Y=(h*w) + UV=(h*(w/2))) */
			fmt->fmt.pix.sizeimage =
				fmt->fmt.pix.height * fmt->fmt.pix.width +
				fmt->fmt.pix.height * (fmt->fmt.pix.width / 2);
		} else {
			fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
			fmt->fmt.pix.sizeimage = 128 * 1024;
		}
		break;

	case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
		if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
			return -EINVAL;
		fmt->fmt.win.chromakey = itv->osd_chroma_key;
		fmt->fmt.win.global_alpha = itv->osd_global_alpha;
		break;

	case V4L2_BUF_TYPE_VBI_CAPTURE:
		fmt->fmt.vbi.sampling_rate = 27000000;
		fmt->fmt.vbi.offset = 248;
		fmt->fmt.vbi.samples_per_line = itv->vbi.raw_decoder_line_size - 4;
		fmt->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
		fmt->fmt.vbi.start[0] = itv->vbi.start[0];
		fmt->fmt.vbi.start[1] = itv->vbi.start[1];
		fmt->fmt.vbi.count[0] = fmt->fmt.vbi.count[1] = itv->vbi.count;
		break;

	case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
	{
		struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;

		if (!(itv->v4l2_cap & V4L2_CAP_SLICED_VBI_OUTPUT))
			return -EINVAL;
		vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
		memset(vbifmt->reserved, 0, sizeof(vbifmt->reserved));
		memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines));
		if (itv->is_60hz) {
			vbifmt->service_lines[0][21] = V4L2_SLICED_CAPTION_525;
			vbifmt->service_lines[1][21] = V4L2_SLICED_CAPTION_525;
		} else {
			vbifmt->service_lines[0][23] = V4L2_SLICED_WSS_625;
			vbifmt->service_lines[0][16] = V4L2_SLICED_VPS;
		}
		vbifmt->service_set = get_service_set(vbifmt);
		break;
	}

	case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
	{
		struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;

		vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
		memset(vbifmt->reserved, 0, sizeof(vbifmt->reserved));
		memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines));

		if (streamtype == IVTV_DEC_STREAM_TYPE_VBI) {
			vbifmt->service_set = itv->is_50hz ? V4L2_SLICED_VBI_625 :
						 V4L2_SLICED_VBI_525;
			expand_service_set(vbifmt, itv->is_50hz);
			break;
		}

		itv->video_dec_func(itv, VIDIOC_G_FMT, fmt);
		vbifmt->service_set = get_service_set(vbifmt);
		break;
	}
	case V4L2_BUF_TYPE_VBI_OUTPUT:
	case V4L2_BUF_TYPE_VIDEO_OVERLAY:
	default:
		return -EINVAL;
	}
	return 0;
}

static int ivtv_try_or_set_fmt(struct ivtv *itv, int streamtype,
		struct v4l2_format *fmt, int set_fmt)
{
	struct yuv_playback_info *yi = &itv->yuv_info;
	struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
	u16 set;

	if (fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
		struct v4l2_rect r;
		int field;

		if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
			return -EINVAL;
		field = fmt->fmt.pix.field;
		r.top = 0;
		r.left = 0;
		r.width = fmt->fmt.pix.width;
		r.height = fmt->fmt.pix.height;
		ivtv_get_fmt(itv, streamtype, fmt);
		fmt->fmt.pix.width = r.width;
		fmt->fmt.pix.height = r.height;
		if (streamtype == IVTV_DEC_STREAM_TYPE_YUV) {
			fmt->fmt.pix.field = field;
			if (fmt->fmt.pix.width < 2)
				fmt->fmt.pix.width = 2;
			if (fmt->fmt.pix.width > 720)
				fmt->fmt.pix.width = 720;
			if (fmt->fmt.pix.height < 2)
				fmt->fmt.pix.height = 2;
			if (fmt->fmt.pix.height > 576)
				fmt->fmt.pix.height = 576;
		}
		if (set_fmt && streamtype == IVTV_DEC_STREAM_TYPE_YUV) {
			/* Return now if we already have some frame data */
			if (yi->stream_size)
				return -EBUSY;

			yi->v4l2_src_w = r.width;
			yi->v4l2_src_h = r.height;

			switch (field) {
			case V4L2_FIELD_NONE:
				yi->lace_mode = IVTV_YUV_MODE_PROGRESSIVE;
				break;
			case V4L2_FIELD_ANY:
				yi->lace_mode = IVTV_YUV_MODE_AUTO;
				break;
			case V4L2_FIELD_INTERLACED_BT:
				yi->lace_mode =
				     IVTV_YUV_MODE_INTERLACED|IVTV_YUV_SYNC_ODD;
				break;
			case V4L2_FIELD_INTERLACED_TB:
			default:
				yi->lace_mode = IVTV_YUV_MODE_INTERLACED;
				break;
			}
			yi->lace_sync_field = (yi->lace_mode & IVTV_YUV_SYNC_MASK) == IVTV_YUV_SYNC_EVEN ? 0 : 1;

			if (test_bit(IVTV_F_I_DEC_YUV, &itv->i_flags))
				itv->dma_data_req_size =
					   1080 * ((yi->v4l2_src_h + 31) & ~31);

			/* Force update of yuv registers */
			yi->yuv_forced_update = 1;
			return 0;
		}
		return 0;
	}

	if (fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY) {
		if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
			return -EINVAL;
		if (set_fmt) {
			itv->osd_chroma_key = fmt->fmt.win.chromakey;
			itv->osd_global_alpha = fmt->fmt.win.global_alpha;
			ivtv_set_osd_alpha(itv);
		}
		return 0;
	}

	/* set window size */
	if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
		struct cx2341x_mpeg_params *p = &itv->params;
		int w = fmt->fmt.pix.width;
		int h = fmt->fmt.pix.height;

		if (w > 720) w = 720;
		else if (w < 1) w = 1;
		if (h > (itv->is_50hz ? 576 : 480)) h = (itv->is_50hz ? 576 : 480);
		else if (h < 2) h = 2;
		ivtv_get_fmt(itv, streamtype, fmt);
		fmt->fmt.pix.width = w;
		fmt->fmt.pix.height = h;

		if (!set_fmt || (p->width == w && p->height == h))
			return 0;
		if (atomic_read(&itv->capturing) > 0)
			return -EBUSY;

		p->width = w;
		p->height = h;
		if (w != 720 || h != (itv->is_50hz ? 576 : 480))
			p->video_temporal_filter = 0;
		else
			p->video_temporal_filter = 8;
		if (p->video_encoding == V4L2_MPEG_VIDEO_ENCODING_MPEG_1)
			fmt->fmt.pix.width /= 2;
		itv->video_dec_func(itv, VIDIOC_S_FMT, fmt);
		return ivtv_get_fmt(itv, streamtype, fmt);
	}

	/* set raw VBI format */
	if (fmt->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
		if (set_fmt && atomic_read(&itv->capturing) > 0) {
			return -EBUSY;
		}
		if (set_fmt) {
			itv->vbi.sliced_in->service_set = 0;
			itv->video_dec_func(itv, VIDIOC_S_FMT, &itv->vbi.in);
		}
		return ivtv_get_fmt(itv, streamtype, fmt);
	}

	/* set sliced VBI output
	   In principle the user could request that only certain
	   VBI types are output and that the others are ignored.
	   I.e., suppress CC in the even fields or only output
	   WSS and no VPS. Currently though there is no choice. */
	if (fmt->type == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT)
		return ivtv_get_fmt(itv, streamtype, fmt);

	/* any else but sliced VBI capture is an error */
	if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
		return -EINVAL;

	if (streamtype == IVTV_DEC_STREAM_TYPE_VBI)
		return ivtv_get_fmt(itv, streamtype, fmt);

	/* set sliced VBI capture format */
	vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
	memset(vbifmt->reserved, 0, sizeof(vbifmt->reserved));

	if (vbifmt->service_set)
		expand_service_set(vbifmt, itv->is_50hz);
	set = check_service_set(vbifmt, itv->is_50hz);
	vbifmt->service_set = get_service_set(vbifmt);

	if (!set_fmt)
		return 0;
	if (set == 0)
		return -EINVAL;
	if (atomic_read(&itv->capturing) > 0) {
		return -EBUSY;
	}
	itv->video_dec_func(itv, VIDIOC_S_FMT, fmt);
	memcpy(itv->vbi.sliced_in, vbifmt, sizeof(*itv->vbi.sliced_in));
	return 0;
}

static int ivtv_debug_ioctls(struct file *filp, unsigned int cmd, void *arg)
{
	struct ivtv_open_id *id = (struct ivtv_open_id *)filp->private_data;
	struct ivtv *itv = id->itv;
	struct v4l2_register *reg = arg;

	switch (cmd) {
	/* ioctls to allow direct access to the encoder registers for testing */
	case VIDIOC_DBG_G_REGISTER:
		if (v4l2_chip_match_host(reg->match_type, reg->match_chip))
			return ivtv_itvc(itv, cmd, arg);
		if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER)
			return ivtv_i2c_id(itv, reg->match_chip, cmd, arg);
		return ivtv_call_i2c_client(itv, reg->match_chip, cmd, arg);

	case VIDIOC_DBG_S_REGISTER:
		if (v4l2_chip_match_host(reg->match_type, reg->match_chip))
			return ivtv_itvc(itv, cmd, arg);
		if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER)
			return ivtv_i2c_id(itv, reg->match_chip, cmd, arg);
		return ivtv_call_i2c_client(itv, reg->match_chip, cmd, arg);

	case VIDIOC_G_CHIP_IDENT: {
		struct v4l2_chip_ident *chip = arg;

		chip->ident = V4L2_IDENT_NONE;
		chip->revision = 0;
		if (reg->match_type == V4L2_CHIP_MATCH_HOST) {
			if (v4l2_chip_match_host(reg->match_type, reg->match_chip))
				chip->ident = itv->has_cx23415 ? V4L2_IDENT_CX23415 : V4L2_IDENT_CX23416;
			return 0;
		}
		if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER)
			return ivtv_i2c_id(itv, reg->match_chip, cmd, arg);
		if (reg->match_type == V4L2_CHIP_MATCH_I2C_ADDR)
			return ivtv_call_i2c_client(itv, reg->match_chip, cmd, arg);
		return -EINVAL;
	}

	case VIDIOC_INT_S_AUDIO_ROUTING: {
		struct v4l2_routing *route = arg;

		ivtv_i2c_hw(itv, itv->card->hw_audio, VIDIOC_INT_S_AUDIO_ROUTING, route);
		break;
	}

	case VIDIOC_INT_RESET: {
		u32 val = *(u32 *)arg;

		if ((val == 0 && itv->options.newi2c) || (val & 0x01)) {
			ivtv_reset_ir_gpio(itv);
		}
		if (val & 0x02) {
			itv->video_dec_func(itv, cmd, NULL);
		}
		break;
	}

	default:
		return -EINVAL;
	}
	return 0;
}

int ivtv_v4l2_ioctls(struct ivtv *itv, struct file *filp, unsigned int cmd, void *arg)
{
	struct ivtv_open_id *id = NULL;
	struct yuv_playback_info *yi = &itv->yuv_info;
	u32 data[CX2341X_MBOX_MAX_DATA];
	int streamtype = 0;

	if (filp) {
		id = (struct ivtv_open_id *)filp->private_data;
		streamtype = id->type;
	}

	switch (cmd) {
	case VIDIOC_G_PRIORITY:
	{
		enum v4l2_priority *p = arg;

		*p = v4l2_prio_max(&itv->prio);
		break;
	}

	case VIDIOC_S_PRIORITY:
	{
		enum v4l2_priority *prio = arg;

		return v4l2_prio_change(&itv->prio, &id->prio, *prio);
	}

	case VIDIOC_QUERYCAP:{
		struct v4l2_capability *vcap = arg;

		memset(vcap, 0, sizeof(*vcap));
		strlcpy(vcap->driver, IVTV_DRIVER_NAME, sizeof(vcap->driver));
		strlcpy(vcap->card, itv->card_name, sizeof(vcap->card));
		strlcpy(vcap->bus_info, pci_name(itv->dev), sizeof(vcap->bus_info));
		vcap->version = IVTV_DRIVER_VERSION; 	    /* version */
		vcap->capabilities = itv->v4l2_cap; 	    /* capabilities */

		/* reserved.. must set to 0! */
		vcap->reserved[0] = vcap->reserved[1] =
			vcap->reserved[2] = vcap->reserved[3] = 0;
		break;
	}

	case VIDIOC_ENUMAUDIO:{
		struct v4l2_audio *vin = arg;

		return ivtv_get_audio_input(itv, vin->index, vin);
	}

	case VIDIOC_G_AUDIO:{
		struct v4l2_audio *vin = arg;

		vin->index = itv->audio_input;
		return ivtv_get_audio_input(itv, vin->index, vin);
	}

	case VIDIOC_S_AUDIO:{
		struct v4l2_audio *vout = arg;

		if (vout->index >= itv->nof_audio_inputs)
			return -EINVAL;
		itv->audio_input = vout->index;
		ivtv_audio_set_io(itv);
		break;
	}

	case VIDIOC_ENUMAUDOUT:{
		struct v4l2_audioout *vin = arg;

		/* set it to defaults from our table */
		return ivtv_get_audio_output(itv, vin->index, vin);
	}

	case VIDIOC_G_AUDOUT:{
		struct v4l2_audioout *vin = arg;

		vin->index = 0;
		return ivtv_get_audio_output(itv, vin->index, vin);
	}

	case VIDIOC_S_AUDOUT:{
		struct v4l2_audioout *vout = arg;

		return ivtv_get_audio_output(itv, vout->index, vout);
	}

	case VIDIOC_ENUMINPUT:{
		struct v4l2_input *vin = arg;

		/* set it to defaults from our table */
		return ivtv_get_input(itv, vin->index, vin);
	}

	case VIDIOC_ENUMOUTPUT:{
		struct v4l2_output *vout = arg;

		return ivtv_get_output(itv, vout->index, vout);
	}

	case VIDIOC_TRY_FMT:
	case VIDIOC_S_FMT: {
		struct v4l2_format *fmt = arg;

		return ivtv_try_or_set_fmt(itv, id->type, fmt, cmd == VIDIOC_S_FMT);
	}

	case VIDIOC_G_FMT: {
		struct v4l2_format *fmt = arg;
		int type = fmt->type;

		memset(fmt, 0, sizeof(*fmt));
		fmt->type = type;
		return ivtv_get_fmt(itv, id->type, fmt);
	}

	case VIDIOC_CROPCAP: {
		struct v4l2_cropcap *cropcap = arg;

		if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
			return -EINVAL;
		cropcap->bounds.top = cropcap->bounds.left = 0;
		cropcap->bounds.width = 720;
		if (cropcap->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
			cropcap->bounds.height = itv->is_50hz ? 576 : 480;
			cropcap->pixelaspect.numerator = itv->is_50hz ? 59 : 10;
			cropcap->pixelaspect.denominator = itv->is_50hz ? 54 : 11;
		} else if (streamtype == IVTV_DEC_STREAM_TYPE_YUV) {
			if (yi->track_osd) {
				cropcap->bounds.width = yi->osd_full_w;
				cropcap->bounds.height = yi->osd_full_h;
			} else {
				cropcap->bounds.width = 720;
				cropcap->bounds.height =
						itv->is_out_50hz ? 576 : 480;
			}
			cropcap->pixelaspect.numerator = itv->is_out_50hz ? 59 : 10;
			cropcap->pixelaspect.denominator = itv->is_out_50hz ? 54 : 11;
		} else {
			cropcap->bounds.height = itv->is_out_50hz ? 576 : 480;
			cropcap->pixelaspect.numerator = itv->is_out_50hz ? 59 : 10;
			cropcap->pixelaspect.denominator = itv->is_out_50hz ? 54 : 11;
		}
		cropcap->defrect = cropcap->bounds;
		return 0;
	}

	case VIDIOC_S_CROP: {
		struct v4l2_crop *crop = arg;

		if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
		    (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) {
			if (streamtype == IVTV_DEC_STREAM_TYPE_YUV) {
				yi->main_rect = crop->c;
				return 0;
			} else {
				if (!ivtv_vapi(itv, CX2341X_OSD_SET_FRAMEBUFFER_WINDOW, 4,
					crop->c.width, crop->c.height, crop->c.left, crop->c.top)) {
					itv->main_rect = crop->c;
					return 0;
				}
			}
			return -EINVAL;
		}
		return -EINVAL;
	}

	case VIDIOC_G_CROP: {
		struct v4l2_crop *crop = arg;

		if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
		    (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) {
			if (streamtype == IVTV_DEC_STREAM_TYPE_YUV)
				crop->c = yi->main_rect;
			else
				crop->c = itv->main_rect;
			return 0;
		}
		return -EINVAL;
	}

	case VIDIOC_ENUM_FMT: {
		static struct v4l2_fmtdesc formats[] = {
			{ 0, 0, 0,
			  "HM12 (YUV 4:2:0)", V4L2_PIX_FMT_HM12,
			  { 0, 0, 0, 0 }
			},
			{ 1, 0, V4L2_FMT_FLAG_COMPRESSED,
			  "MPEG", V4L2_PIX_FMT_MPEG,
			  { 0, 0, 0, 0 }
			}
		};
		struct v4l2_fmtdesc *fmt = arg;
		enum v4l2_buf_type type = fmt->type;

		switch (type) {
		case V4L2_BUF_TYPE_VIDEO_CAPTURE:
			break;
		case V4L2_BUF_TYPE_VIDEO_OUTPUT:
			if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
				return -EINVAL;
			break;
		default:
			return -EINVAL;
		}
		if (fmt->index > 1)
			return -EINVAL;
		*fmt = formats[fmt->index];
		fmt->type = type;
		return 0;
	}

	case VIDIOC_G_INPUT:{
		*(int *)arg = itv->active_input;
		break;
	}

	case VIDIOC_S_INPUT:{
		int inp = *(int *)arg;

		if (inp < 0 || inp >= itv->nof_inputs)
			return -EINVAL;

		if (inp == itv->active_input) {
			IVTV_DEBUG_INFO("Input unchanged\n");
			break;
		}
		if (atomic_read(&itv->capturing) > 0) {
			return -EBUSY;
		}
		IVTV_DEBUG_INFO("Changing input from %d to %d\n",
				itv->active_input, inp);

		itv->active_input = inp;
		/* Set the audio input to whatever is appropriate for the
		   input type. */
		itv->audio_input = itv->card->video_inputs[inp].audio_index;

		/* prevent others from messing with the streams until
		   we're finished changing inputs. */
		ivtv_mute(itv);
		ivtv_video_set_io(itv);
		ivtv_audio_set_io(itv);
		ivtv_unmute(itv);
		break;
	}

	case VIDIOC_G_OUTPUT:{
		if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
			return -EINVAL;
		*(int *)arg = itv->active_output;
		break;
	}

	case VIDIOC_S_OUTPUT:{
		int outp = *(int *)arg;
		struct v4l2_routing route;

		if (outp >= itv->card->nof_outputs)
			return -EINVAL;

		if (outp == itv->active_output) {
			IVTV_DEBUG_INFO("Output unchanged\n");
			break;
		}
		IVTV_DEBUG_INFO("Changing output from %d to %d\n",
			   itv->active_output, outp);

		itv->active_output = outp;
		route.input = SAA7127_INPUT_TYPE_NORMAL;
		route.output = itv->card->video_outputs[outp].video_output;
		ivtv_saa7127(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route);
		break;
	}

	case VIDIOC_G_FREQUENCY:{
		struct v4l2_frequency *vf = arg;

		if (vf->tuner != 0)
			return -EINVAL;
		ivtv_call_i2c_clients(itv, cmd, arg);
		break;
	}

	case VIDIOC_S_FREQUENCY:{
		struct v4l2_frequency vf = *(struct v4l2_frequency *)arg;

		if (vf.tuner != 0)
			return -EINVAL;

		ivtv_mute(itv);
		IVTV_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf.frequency);
		ivtv_call_i2c_clients(itv, cmd, &vf);
		ivtv_unmute(itv);
		break;
	}

	case VIDIOC_ENUMSTD:{
		struct v4l2_standard *vs = arg;
		int idx = vs->index;

		if (idx < 0 || idx >= ARRAY_SIZE(enum_stds))
			return -EINVAL;

		*vs = (enum_stds[idx].std & V4L2_STD_525_60) ?
				ivtv_std_60hz : ivtv_std_50hz;
		vs->index = idx;
		vs->id = enum_stds[idx].std;
		strlcpy(vs->name, enum_stds[idx].name, sizeof(vs->name));
		break;
	}

	case VIDIOC_G_STD:{
		*(v4l2_std_id *) arg = itv->std;
		break;
	}

	case VIDIOC_S_STD: {
		v4l2_std_id std = *(v4l2_std_id *) arg;

		if ((std & V4L2_STD_ALL) == 0)
			return -EINVAL;

		if (std == itv->std)
			break;

		if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags) ||
		    atomic_read(&itv->capturing) > 0 ||
		    atomic_read(&itv->decoding) > 0) {
			/* Switching standard would turn off the radio or mess
			   with already running streams, prevent that by
			   returning EBUSY. */
			return -EBUSY;
		}

		itv->std = std;
		itv->is_60hz = (std & V4L2_STD_525_60) ? 1 : 0;
		itv->params.is_50hz = itv->is_50hz = !itv->is_60hz;
		itv->params.width = 720;
		itv->params.height = itv->is_50hz ? 576 : 480;
		itv->vbi.count = itv->is_50hz ? 18 : 12;
		itv->vbi.start[0] = itv->is_50hz ? 6 : 10;
		itv->vbi.start[1] = itv->is_50hz ? 318 : 273;
		if (itv->hw_flags & IVTV_HW_CX25840) {
			itv->vbi.sliced_decoder_line_size = itv->is_60hz ? 272 : 284;
		}
		IVTV_DEBUG_INFO("Switching standard to %llx.\n", (unsigned long long)itv->std);

		/* Tuner */
		ivtv_call_i2c_clients(itv, VIDIOC_S_STD, &itv->std);

		if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) {
			/* set display standard */
			itv->std_out = std;
			itv->is_out_60hz = itv->is_60hz;
			itv->is_out_50hz = itv->is_50hz;
			ivtv_call_i2c_clients(itv, VIDIOC_INT_S_STD_OUTPUT, &itv->std_out);
			ivtv_vapi(itv, CX2341X_DEC_SET_STANDARD, 1, itv->is_out_50hz);
			itv->main_rect.left = itv->main_rect.top = 0;
			itv->main_rect.width = 720;
			itv->main_rect.height = itv->params.height;
			ivtv_vapi(itv, CX2341X_OSD_SET_FRAMEBUFFER_WINDOW, 4,
				720, itv->main_rect.height, 0, 0);
			yi->main_rect = itv->main_rect;
			if (!itv->osd_info) {
				yi->osd_full_w = 720;
				yi->osd_full_h = itv->is_out_50hz ? 576 : 480;
			}
		}
		break;
	}

	case VIDIOC_S_TUNER: {	/* Setting tuner can only set audio mode */
		struct v4l2_tuner *vt = arg;

		if (vt->index != 0)
			return -EINVAL;

		ivtv_call_i2c_clients(itv, VIDIOC_S_TUNER, vt);
		break;
	}

	case VIDIOC_G_TUNER: {
		struct v4l2_tuner *vt = arg;

		if (vt->index != 0)
			return -EINVAL;

		memset(vt, 0, sizeof(*vt));
		ivtv_call_i2c_clients(itv, VIDIOC_G_TUNER, vt);

		if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags)) {
			strlcpy(vt->name, "ivtv Radio Tuner", sizeof(vt->name));
			vt->type = V4L2_TUNER_RADIO;
		} else {
			strlcpy(vt->name, "ivtv TV Tuner", sizeof(vt->name));
			vt->type = V4L2_TUNER_ANALOG_TV;
		}
		break;
	}

	case VIDIOC_G_SLICED_VBI_CAP: {
		struct v4l2_sliced_vbi_cap *cap = arg;
		int set = itv->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525;
		int f, l;
		enum v4l2_buf_type type = cap->type;

		memset(cap, 0, sizeof(*cap));
		cap->type = type;
		if (type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) {
			for (f = 0; f < 2; f++) {
				for (l = 0; l < 24; l++) {
					if (valid_service_line(f, l, itv->is_50hz)) {
						cap->service_lines[f][l] = set;
					}
				}
			}
			return 0;
		}
		if (type == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT) {
			if (!(itv->v4l2_cap & V4L2_CAP_SLICED_VBI_OUTPUT))
				return -EINVAL;
			if (itv->is_60hz) {
				cap->service_lines[0][21] = V4L2_SLICED_CAPTION_525;
				cap->service_lines[1][21] = V4L2_SLICED_CAPTION_525;
			} else {
				cap->service_lines[0][23] = V4L2_SLICED_WSS_625;
				cap->service_lines[0][16] = V4L2_SLICED_VPS;
			}
			return 0;
		}
		return -EINVAL;
	}

	case VIDIOC_G_ENC_INDEX: {
		struct v4l2_enc_idx *idx = arg;
		struct v4l2_enc_idx_entry *e = idx->entry;
		int entries;
		int i;

		entries = (itv->pgm_info_write_idx + IVTV_MAX_PGM_INDEX - itv->pgm_info_read_idx) %
					IVTV_MAX_PGM_INDEX;
		if (entries > V4L2_ENC_IDX_ENTRIES)
			entries = V4L2_ENC_IDX_ENTRIES;
		idx->entries = 0;
		for (i = 0; i < entries; i++) {
			*e = itv->pgm_info[(itv->pgm_info_read_idx + i) % IVTV_MAX_PGM_INDEX];
			if ((e->flags & V4L2_ENC_IDX_FRAME_MASK) <= V4L2_ENC_IDX_FRAME_B) {
				idx->entries++;
				e++;
			}
		}
		itv->pgm_info_read_idx = (itv->pgm_info_read_idx + idx->entries) % IVTV_MAX_PGM_INDEX;
		break;
	}

	case VIDIOC_ENCODER_CMD:
	case VIDIOC_TRY_ENCODER_CMD: {
		struct v4l2_encoder_cmd *enc = arg;
		int try = cmd == VIDIOC_TRY_ENCODER_CMD;

		memset(&enc->raw, 0, sizeof(enc->raw));
		switch (enc->cmd) {
		case V4L2_ENC_CMD_START:
			IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
			enc->flags = 0;
			if (try)
				return 0;
			return ivtv_start_capture(id);

		case V4L2_ENC_CMD_STOP:
			IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
			enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
			if (try)
				return 0;
			ivtv_stop_capture(id, enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END);
			return 0;

		case V4L2_ENC_CMD_PAUSE:
			IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
			enc->flags = 0;
			if (try)
				return 0;
			if (!atomic_read(&itv->capturing))
				return -EPERM;
			if (test_and_set_bit(IVTV_F_I_ENC_PAUSED, &itv->i_flags))
				return 0;
			ivtv_mute(itv);
			ivtv_vapi(itv, CX2341X_ENC_PAUSE_ENCODER, 1, 0);
			break;

		case V4L2_ENC_CMD_RESUME:
			IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
			enc->flags = 0;
			if (try)
				return 0;
			if (!atomic_read(&itv->capturing))
				return -EPERM;
			if (!test_and_clear_bit(IVTV_F_I_ENC_PAUSED, &itv->i_flags))
				return 0;
			ivtv_vapi(itv, CX2341X_ENC_PAUSE_ENCODER, 1, 1);
			ivtv_unmute(itv);
			break;
		default:
			IVTV_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
			return -EINVAL;
		}
		break;
	}

	case VIDIOC_G_FBUF: {
		struct v4l2_framebuffer *fb = arg;
		int pixfmt;
		static u32 pixel_format[16] = {
			V4L2_PIX_FMT_PAL8, /* Uses a 256-entry RGB colormap */
			V4L2_PIX_FMT_RGB565,
			V4L2_PIX_FMT_RGB555,
			V4L2_PIX_FMT_RGB444,
			V4L2_PIX_FMT_RGB32,
			0,
			0,
			0,
			V4L2_PIX_FMT_PAL8, /* Uses a 256-entry YUV colormap */
			V4L2_PIX_FMT_YUV565,
			V4L2_PIX_FMT_YUV555,
			V4L2_PIX_FMT_YUV444,
			V4L2_PIX_FMT_YUV32,
			0,
			0,
			0,
		};

		memset(fb, 0, sizeof(*fb));
		if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT_OVERLAY))
			return -EINVAL;
		fb->capability = V4L2_FBUF_CAP_EXTERNOVERLAY | V4L2_FBUF_CAP_CHROMAKEY |
			V4L2_FBUF_CAP_GLOBAL_ALPHA;
		ivtv_vapi_result(itv, data, CX2341X_OSD_GET_STATE, 0);
		data[0] |= (read_reg(0x2a00) >> 7) & 0x40;
		pixfmt = (data[0] >> 3) & 0xf;
		fb->fmt.pixelformat = pixel_format[pixfmt];
		fb->fmt.width = itv->osd_rect.width;
		fb->fmt.height = itv->osd_rect.height;
		fb->base = (void *)itv->osd_video_pbase;
		if (itv->osd_chroma_key_state)
			fb->flags |= V4L2_FBUF_FLAG_CHROMAKEY;
		if (itv->osd_global_alpha_state)
			fb->flags |= V4L2_FBUF_FLAG_GLOBAL_ALPHA;
		pixfmt &= 7;
		/* no local alpha for RGB565 or unknown formats */
		if (pixfmt == 1 || pixfmt > 4)
			break;
		/* 16-bit formats have inverted local alpha */
		if (pixfmt == 2 || pixfmt == 3)
			fb->capability |= V4L2_FBUF_CAP_LOCAL_INV_ALPHA;
		else
			fb->capability |= V4L2_FBUF_CAP_LOCAL_ALPHA;
		if (itv->osd_local_alpha_state) {
			/* 16-bit formats have inverted local alpha */
			if (pixfmt == 2 || pixfmt == 3)
				fb->flags |= V4L2_FBUF_FLAG_LOCAL_INV_ALPHA;
			else
				fb->flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
		}
		if (yi->track_osd)
			fb->flags |= V4L2_FBUF_FLAG_OVERLAY;
		break;
	}

	case VIDIOC_S_FBUF: {
		struct v4l2_framebuffer *fb = arg;

		if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT_OVERLAY))
			return -EINVAL;
		itv->osd_global_alpha_state = (fb->flags & V4L2_FBUF_FLAG_GLOBAL_ALPHA) != 0;
		itv->osd_local_alpha_state =
			(fb->flags & (V4L2_FBUF_FLAG_LOCAL_ALPHA|V4L2_FBUF_FLAG_LOCAL_INV_ALPHA)) != 0;
		itv->osd_chroma_key_state = (fb->flags & V4L2_FBUF_FLAG_CHROMAKEY) != 0;
		ivtv_set_osd_alpha(itv);
		yi->track_osd = (fb->flags & V4L2_FBUF_FLAG_OVERLAY) != 0;
		break;
	}

	case VIDIOC_OVERLAY: {
		int *on = arg;

		if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT_OVERLAY))
			return -EINVAL;
		ivtv_vapi(itv, CX2341X_OSD_SET_STATE, 1, *on != 0);
		break;
	}

	case VIDIOC_LOG_STATUS:
	{
		int has_output = itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT;
		struct v4l2_input vidin;
		struct v4l2_audio audin;
		int i;

		IVTV_INFO("=================  START STATUS CARD #%d  =================\n", itv->num);
		IVTV_INFO("Version: %s Card: %s\n", IVTV_VERSION, itv->card_name);
		if (itv->hw_flags & IVTV_HW_TVEEPROM) {
			struct tveeprom tv;

			ivtv_read_eeprom(itv, &tv);
		}
		ivtv_call_i2c_clients(itv, VIDIOC_LOG_STATUS, NULL);
		ivtv_get_input(itv, itv->active_input, &vidin);
		ivtv_get_audio_input(itv, itv->audio_input, &audin);
		IVTV_INFO("Video Input:  %s\n", vidin.name);
		IVTV_INFO("Audio Input:  %s%s\n", audin.name,
			(itv->dualwatch_stereo_mode & ~0x300) == 0x200 ? " (Bilingual)" : "");
		if (has_output) {
			struct v4l2_output vidout;
			struct v4l2_audioout audout;
			int mode = itv->output_mode;
			static const char * const output_modes[5] = {
				"None",
				"MPEG Streaming",
				"YUV Streaming",
				"YUV Frames",
				"Passthrough",
			};
			static const char * const audio_modes[5] = {
				"Stereo",
				"Left",
				"Right",
				"Mono",
				"Swapped"
			};
			static const char * const alpha_mode[4] = {
				"None",
				"Global",
				"Local",
				"Global and Local"
			};
			static const char * const pixel_format[16] = {
				"ARGB Indexed",
				"RGB 5:6:5",
				"ARGB 1:5:5:5",
				"ARGB 1:4:4:4",
				"ARGB 8:8:8:8",
				"5",
				"6",
				"7",
				"AYUV Indexed",
				"YUV 5:6:5",
				"AYUV 1:5:5:5",
				"AYUV 1:4:4:4",
				"AYUV 8:8:8:8",
				"13",
				"14",
				"15",
			};

			ivtv_get_output(itv, itv->active_output, &vidout);
			ivtv_get_audio_output(itv, 0, &audout);
			IVTV_INFO("Video Output: %s\n", vidout.name);
			IVTV_INFO("Audio Output: %s (Stereo/Bilingual: %s/%s)\n", audout.name,
				audio_modes[itv->audio_stereo_mode],
				audio_modes[itv->audio_bilingual_mode]);
			if (mode < 0 || mode > OUT_PASSTHROUGH)
				mode = OUT_NONE;
			IVTV_INFO("Output Mode:  %s\n", output_modes[mode]);
			ivtv_vapi_result(itv, data, CX2341X_OSD_GET_STATE, 0);
			data[0] |= (read_reg(0x2a00) >> 7) & 0x40;
			IVTV_INFO("Overlay:      %s, Alpha: %s, Pixel Format: %s\n",
				data[0] & 1 ? "On" : "Off",
				alpha_mode[(data[0] >> 1) & 0x3],
				pixel_format[(data[0] >> 3) & 0xf]);
		}
		IVTV_INFO("Tuner:  %s\n",
			test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags) ? "Radio" : "TV");
		cx2341x_log_status(&itv->params, itv->name);
		IVTV_INFO("Status flags:    0x%08lx\n", itv->i_flags);
		for (i = 0; i < IVTV_MAX_STREAMS; i++) {
			struct ivtv_stream *s = &itv->streams[i];

			if (s->v4l2dev == NULL || s->buffers == 0)
				continue;
			IVTV_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n", s->name, s->s_flags,
					(s->buffers - s->q_free.buffers) * 100 / s->buffers,
					(s->buffers * s->buf_size) / 1024, s->buffers);
		}
		IVTV_INFO("Read MPG/VBI: %lld/%lld bytes\n", (long long)itv->mpg_data_received, (long long)itv->vbi_data_inserted);
		IVTV_INFO("==================  END STATUS CARD #%d  ==================\n", itv->num);
		break;
	}

	default:
		return -EINVAL;
	}
	return 0;
}

static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg)
{
	struct ivtv_open_id *id = (struct ivtv_open_id *)filp->private_data;
	struct ivtv *itv = id->itv;
	int nonblocking = filp->f_flags & O_NONBLOCK;
	struct ivtv_stream *s = &itv->streams[id->type];

	switch (cmd) {
	case IVTV_IOC_DMA_FRAME: {
		struct ivtv_dma_frame *args = arg;

		IVTV_DEBUG_IOCTL("IVTV_IOC_DMA_FRAME\n");
		if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
			return -EINVAL;
		if (args->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
			return -EINVAL;
		if (itv->output_mode == OUT_UDMA_YUV && args->y_source == NULL)
			return 0;
		if (ivtv_claim_stream(id, id->type)) {
			return -EBUSY;
		}
		if (ivtv_set_output_mode(itv, OUT_UDMA_YUV) != OUT_UDMA_YUV) {
			ivtv_release_stream(s);
			return -EBUSY;
		}
		/* Mark that this file handle started the UDMA_YUV mode */
		id->yuv_frames = 1;
		if (args->y_source == NULL)
			return 0;
		return ivtv_yuv_prep_frame(itv, args);
	}

	case VIDEO_GET_PTS: {
		u32 data[CX2341X_MBOX_MAX_DATA];
		u64 *pts = arg;

		IVTV_DEBUG_IOCTL("VIDEO_GET_PTS\n");
		if (s->type < IVTV_DEC_STREAM_TYPE_MPG) {
			*pts = s->dma_pts;
			break;
		}
		if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
			return -EINVAL;

		if (test_bit(IVTV_F_I_VALID_DEC_TIMINGS, &itv->i_flags)) {
			*pts = (u64) ((u64)itv->last_dec_timing[2] << 32) |
					(u64)itv->last_dec_timing[1];
			break;
		}
		*pts = 0;
		if (atomic_read(&itv->decoding)) {
			if (ivtv_api(itv, CX2341X_DEC_GET_TIMING_INFO, 5, data)) {
				IVTV_DEBUG_WARN("GET_TIMING: couldn't read clock\n");
				return -EIO;
			}
			memcpy(itv->last_dec_timing, data, sizeof(itv->last_dec_timing));
			set_bit(IVTV_F_I_VALID_DEC_TIMINGS, &itv->i_flags);
			*pts = (u64) ((u64) data[2] << 32) | (u64) data[1];
			/*timing->scr = (u64) (((u64) data[4] << 32) | (u64) (data[3]));*/
		}
		break;
	}

	case VIDEO_GET_FRAME_COUNT: {
		u32 data[CX2341X_MBOX_MAX_DATA];
		u64 *frame = arg;

		IVTV_DEBUG_IOCTL("VIDEO_GET_FRAME_COUNT\n");
		if (s->type < IVTV_DEC_STREAM_TYPE_MPG) {
			*frame = 0;
			break;
		}
		if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
			return -EINVAL;

		if (test_bit(IVTV_F_I_VALID_DEC_TIMINGS, &itv->i_flags)) {
			*frame = itv->last_dec_timing[0];
			break;
		}
		*frame = 0;
		if (atomic_read(&itv->decoding)) {
			if (ivtv_api(itv, CX2341X_DEC_GET_TIMING_INFO, 5, data)) {
				IVTV_DEBUG_WARN("GET_TIMING: couldn't read clock\n");
				return -EIO;
			}
			memcpy(itv->last_dec_timing, data, sizeof(itv->last_dec_timing));
			set_bit(IVTV_F_I_VALID_DEC_TIMINGS, &itv->i_flags);
			*frame = data[0];
		}
		break;
	}

	case VIDEO_PLAY: {
		struct video_command vc;

		IVTV_DEBUG_IOCTL("VIDEO_PLAY\n");
		memset(&vc, 0, sizeof(vc));
		vc.cmd = VIDEO_CMD_PLAY;
		return ivtv_video_command(itv, id, &vc, 0);
	}

	case VIDEO_STOP: {
		struct video_command vc;

		IVTV_DEBUG_IOCTL("VIDEO_STOP\n");
		memset(&vc, 0, sizeof(vc));
		vc.cmd = VIDEO_CMD_STOP;
		vc.flags = VIDEO_CMD_STOP_TO_BLACK | VIDEO_CMD_STOP_IMMEDIATELY;
		return ivtv_video_command(itv, id, &vc, 0);
	}

	case VIDEO_FREEZE: {
		struct video_command vc;

		IVTV_DEBUG_IOCTL("VIDEO_FREEZE\n");
		memset(&vc, 0, sizeof(vc));
		vc.cmd = VIDEO_CMD_FREEZE;
		return ivtv_video_command(itv, id, &vc, 0);
	}

	case VIDEO_CONTINUE: {
		struct video_command vc;

		IVTV_DEBUG_IOCTL("VIDEO_CONTINUE\n");
		memset(&vc, 0, sizeof(vc));
		vc.cmd = VIDEO_CMD_CONTINUE;
		return ivtv_video_command(itv, id, &vc, 0);
	}

	case VIDEO_COMMAND:
	case VIDEO_TRY_COMMAND: {
		struct video_command *vc = arg;
		int try = (cmd == VIDEO_TRY_COMMAND);

		if (try)
			IVTV_DEBUG_IOCTL("VIDEO_TRY_COMMAND %d\n", vc->cmd);
		else
			IVTV_DEBUG_IOCTL("VIDEO_COMMAND %d\n", vc->cmd);
		return ivtv_video_command(itv, id, vc, try);
	}

	case VIDEO_GET_EVENT: {
		struct video_event *ev = arg;
		DEFINE_WAIT(wait);

		IVTV_DEBUG_IOCTL("VIDEO_GET_EVENT\n");
		if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
			return -EINVAL;
		memset(ev, 0, sizeof(*ev));
		set_bit(IVTV_F_I_EV_VSYNC_ENABLED, &itv->i_flags);

		while (1) {
			if (test_and_clear_bit(IVTV_F_I_EV_DEC_STOPPED, &itv->i_flags))
				ev->type = VIDEO_EVENT_DECODER_STOPPED;
			else if (test_and_clear_bit(IVTV_F_I_EV_VSYNC, &itv->i_flags)) {
				ev->type = VIDEO_EVENT_VSYNC;
				ev->u.vsync_field = test_bit(IVTV_F_I_EV_VSYNC_FIELD, &itv->i_flags) ?
					VIDEO_VSYNC_FIELD_ODD : VIDEO_VSYNC_FIELD_EVEN;
				if (itv->output_mode == OUT_UDMA_YUV &&
					(itv->yuv_info.lace_mode & IVTV_YUV_MODE_MASK) ==
								IVTV_YUV_MODE_PROGRESSIVE) {
					ev->u.vsync_field = VIDEO_VSYNC_FIELD_PROGRESSIVE;
				}
			}
			if (ev->type)
				return 0;
			if (nonblocking)
				return -EAGAIN;
			/* Wait for event. Note that serialize_lock is locked,
			   so to allow other processes to access the driver while
			   we are waiting unlock first and later lock again. */
			mutex_unlock(&itv->serialize_lock);
			prepare_to_wait(&itv->event_waitq, &wait, TASK_INTERRUPTIBLE);
			if ((itv->i_flags & (IVTV_F_I_EV_DEC_STOPPED|IVTV_F_I_EV_VSYNC)) == 0)
				schedule();
			finish_wait(&itv->event_waitq, &wait);
			mutex_lock(&itv->serialize_lock);
			if (signal_pending(current)) {
				/* return if a signal was received */
				IVTV_DEBUG_INFO("User stopped wait for event\n");
				return -EINTR;
			}
		}
		break;
	}

	default:
		return -EINVAL;
	}
	return 0;
}

static int ivtv_v4l2_do_ioctl(struct inode *inode, struct file *filp,
			      unsigned int cmd, void *arg)
{
	struct ivtv_open_id *id = (struct ivtv_open_id *)filp->private_data;
	struct ivtv *itv = id->itv;
	int ret;

	/* check priority */
	switch (cmd) {
	case VIDIOC_S_CTRL:
	case VIDIOC_S_STD:
	case VIDIOC_S_INPUT:
	case VIDIOC_S_OUTPUT:
	case VIDIOC_S_TUNER:
	case VIDIOC_S_FREQUENCY:
	case VIDIOC_S_FMT:
	case VIDIOC_S_CROP:
	case VIDIOC_S_AUDIO:
	case VIDIOC_S_AUDOUT:
	case VIDIOC_S_EXT_CTRLS:
	case VIDIOC_S_FBUF:
	case VIDIOC_OVERLAY:
		ret = v4l2_prio_check(&itv->prio, &id->prio);
		if (ret)
			return ret;
	}

	switch (cmd) {
	case VIDIOC_DBG_G_REGISTER:
	case VIDIOC_DBG_S_REGISTER:
	case VIDIOC_G_CHIP_IDENT:
	case VIDIOC_INT_S_AUDIO_ROUTING:
	case VIDIOC_INT_RESET:
		if (ivtv_debug & IVTV_DBGFLG_IOCTL) {
			printk(KERN_INFO "ivtv%d ioctl: ", itv->num);
			v4l_printk_ioctl(cmd);
			printk("\n");
		}
		return ivtv_debug_ioctls(filp, cmd, arg);

	case VIDIOC_G_PRIORITY:
	case VIDIOC_S_PRIORITY:
	case VIDIOC_QUERYCAP:
	case VIDIOC_ENUMINPUT:
	case VIDIOC_G_INPUT:
	case VIDIOC_S_INPUT:
	case VIDIOC_ENUMOUTPUT:
	case VIDIOC_G_OUTPUT:
	case VIDIOC_S_OUTPUT:
	case VIDIOC_G_FMT:
	case VIDIOC_S_FMT:
	case VIDIOC_TRY_FMT:
	case VIDIOC_ENUM_FMT:
	case VIDIOC_CROPCAP:
	case VIDIOC_G_CROP:
	case VIDIOC_S_CROP:
	case VIDIOC_G_FREQUENCY:
	case VIDIOC_S_FREQUENCY:
	case VIDIOC_ENUMSTD:
	case VIDIOC_G_STD:
	case VIDIOC_S_STD:
	case VIDIOC_S_TUNER:
	case VIDIOC_G_TUNER:
	case VIDIOC_ENUMAUDIO:
	case VIDIOC_S_AUDIO:
	case VIDIOC_G_AUDIO:
	case VIDIOC_ENUMAUDOUT:
	case VIDIOC_S_AUDOUT:
	case VIDIOC_G_AUDOUT:
	case VIDIOC_G_SLICED_VBI_CAP:
	case VIDIOC_LOG_STATUS:
	case VIDIOC_G_ENC_INDEX:
	case VIDIOC_ENCODER_CMD:
	case VIDIOC_TRY_ENCODER_CMD:
	case VIDIOC_G_FBUF:
	case VIDIOC_S_FBUF:
	case VIDIOC_OVERLAY:
		if (ivtv_debug & IVTV_DBGFLG_IOCTL) {
			printk(KERN_INFO "ivtv%d ioctl: ", itv->num);
			v4l_printk_ioctl(cmd);
			printk("\n");
		}
		return ivtv_v4l2_ioctls(itv, filp, cmd, arg);

	case VIDIOC_QUERYMENU:
	case VIDIOC_QUERYCTRL:
	case VIDIOC_S_CTRL:
	case VIDIOC_G_CTRL:
	case VIDIOC_S_EXT_CTRLS:
	case VIDIOC_G_EXT_CTRLS:
	case VIDIOC_TRY_EXT_CTRLS:
		if (ivtv_debug & IVTV_DBGFLG_IOCTL) {
			printk(KERN_INFO "ivtv%d ioctl: ", itv->num);
			v4l_printk_ioctl(cmd);
			printk("\n");
		}
		return ivtv_control_ioctls(itv, cmd, arg);

	case IVTV_IOC_DMA_FRAME:
	case VIDEO_GET_PTS:
	case VIDEO_GET_FRAME_COUNT:
	case VIDEO_GET_EVENT:
	case VIDEO_PLAY:
	case VIDEO_STOP:
	case VIDEO_FREEZE:
	case VIDEO_CONTINUE:
	case VIDEO_COMMAND:
	case VIDEO_TRY_COMMAND:
		return ivtv_decoder_ioctls(filp, cmd, arg);

	case 0x00005401:	/* Handle isatty() calls */
		return -EINVAL;
	default:
		return v4l_compat_translate_ioctl(inode, filp, cmd, arg,
						   ivtv_v4l2_do_ioctl);
	}
	return 0;
}

static int ivtv_serialized_ioctl(struct ivtv *itv, struct inode *inode, struct file *filp,
		unsigned int cmd, unsigned long arg)
{
	/* Filter dvb ioctls that cannot be handled by video_usercopy */
	switch (cmd) {
	case VIDEO_SELECT_SOURCE:
		IVTV_DEBUG_IOCTL("VIDEO_SELECT_SOURCE\n");
		if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
			return -EINVAL;
		return ivtv_passthrough_mode(itv, arg == VIDEO_SOURCE_DEMUX);

	case AUDIO_SET_MUTE:
		IVTV_DEBUG_IOCTL("AUDIO_SET_MUTE\n");
		itv->speed_mute_audio = arg;
		return 0;

	case AUDIO_CHANNEL_SELECT:
		IVTV_DEBUG_IOCTL("AUDIO_CHANNEL_SELECT\n");
		if (arg > AUDIO_STEREO_SWAPPED)
			return -EINVAL;
		itv->audio_stereo_mode = arg;
		ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode);
		return 0;

	case AUDIO_BILINGUAL_CHANNEL_SELECT:
		IVTV_DEBUG_IOCTL("AUDIO_BILINGUAL_CHANNEL_SELECT\n");
		if (arg > AUDIO_STEREO_SWAPPED)
			return -EINVAL;
		itv->audio_bilingual_mode = arg;
		ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode);
		return 0;

	default:
		break;
	}
	return video_usercopy(inode, filp, cmd, arg, ivtv_v4l2_do_ioctl);
}

int ivtv_v4l2_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
		    unsigned long arg)
{
	struct ivtv_open_id *id = (struct ivtv_open_id *)filp->private_data;
	struct ivtv *itv = id->itv;
	int res;

	mutex_lock(&itv->serialize_lock);
	res = ivtv_serialized_ioctl(itv, inode, filp, cmd, arg);
	mutex_unlock(&itv->serialize_lock);
	return res;
}