summaryrefslogtreecommitdiff
path: root/drivers/media/i2c/tvp5150.c
blob: 76e6bed5a1da22c24e7289fc9e40010b24e7ac0b (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
// SPDX-License-Identifier: GPL-2.0
//
// tvp5150 - Texas Instruments TVP5150A/AM1 and TVP5151 video decoder driver
//
// Copyright (c) 2005,2006 Mauro Carvalho Chehab <mchehab@kernel.org>

#include <dt-bindings/media/tvp5150.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/videodev2.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/of_graph.h>
#include <media/v4l2-async.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-fwnode.h>
#include <media/v4l2-mc.h>

#include "tvp5150_reg.h"

#define TVP5150_H_MAX		720U
#define TVP5150_V_MAX_525_60	480U
#define TVP5150_V_MAX_OTHERS	576U
#define TVP5150_MAX_CROP_LEFT	511
#define TVP5150_MAX_CROP_TOP	127
#define TVP5150_CROP_SHIFT	2

MODULE_DESCRIPTION("Texas Instruments TVP5150A/TVP5150AM1/TVP5151 video decoder driver");
MODULE_AUTHOR("Mauro Carvalho Chehab");
MODULE_LICENSE("GPL v2");


static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Debug level (0-2)");

#define dprintk0(__dev, __arg...) dev_dbg_lvl(__dev, 0, 0, __arg)

struct tvp5150 {
	struct v4l2_subdev sd;
#ifdef CONFIG_MEDIA_CONTROLLER
	struct media_pad pads[DEMOD_NUM_PADS];
	struct media_entity input_ent[TVP5150_INPUT_NUM];
	struct media_pad input_pad[TVP5150_INPUT_NUM];
#endif
	struct v4l2_ctrl_handler hdl;
	struct v4l2_rect rect;

	v4l2_std_id norm;	/* Current set standard */
	u32 input;
	u32 output;
	int enable;

	u16 dev_id;
	u16 rom_ver;

	enum v4l2_mbus_type mbus_type;
};

static inline struct tvp5150 *to_tvp5150(struct v4l2_subdev *sd)
{
	return container_of(sd, struct tvp5150, sd);
}

static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
{
	return &container_of(ctrl->handler, struct tvp5150, hdl)->sd;
}

static int tvp5150_read(struct v4l2_subdev *sd, unsigned char addr)
{
	struct i2c_client *c = v4l2_get_subdevdata(sd);
	int rc;

	rc = i2c_smbus_read_byte_data(c, addr);
	if (rc < 0) {
		dev_err(sd->dev, "i2c i/o error: rc == %d\n", rc);
		return rc;
	}

	dev_dbg_lvl(sd->dev, 2, debug, "tvp5150: read 0x%02x = %02x\n", addr, rc);

	return rc;
}

static int tvp5150_write(struct v4l2_subdev *sd, unsigned char addr,
				 unsigned char value)
{
	struct i2c_client *c = v4l2_get_subdevdata(sd);
	int rc;

	dev_dbg_lvl(sd->dev, 2, debug, "tvp5150: writing %02x %02x\n", addr, value);
	rc = i2c_smbus_write_byte_data(c, addr, value);
	if (rc < 0)
		dev_err(sd->dev, "i2c i/o error: rc == %d\n", rc);

	return rc;
}

static void dump_reg_range(struct v4l2_subdev *sd, char *s, u8 init,
				const u8 end, int max_line)
{
	u8 buf[16];
	int i = 0, j, len;

	if (max_line > 16) {
		dprintk0(sd->dev, "too much data to dump\n");
		return;
	}

	for (i = init; i < end; i += max_line) {
		len = (end - i > max_line) ? max_line : end - i;

		for (j = 0; j < len; j++)
			buf[j] = tvp5150_read(sd, i + j);

		dprintk0(sd->dev, "%s reg %02x = %*ph\n", s, i, len, buf);
	}
}

static int tvp5150_log_status(struct v4l2_subdev *sd)
{
	dprintk0(sd->dev, "tvp5150: Video input source selection #1 = 0x%02x\n",
		tvp5150_read(sd, TVP5150_VD_IN_SRC_SEL_1));
	dprintk0(sd->dev, "tvp5150: Analog channel controls = 0x%02x\n",
		tvp5150_read(sd, TVP5150_ANAL_CHL_CTL));
	dprintk0(sd->dev, "tvp5150: Operation mode controls = 0x%02x\n",
		tvp5150_read(sd, TVP5150_OP_MODE_CTL));
	dprintk0(sd->dev, "tvp5150: Miscellaneous controls = 0x%02x\n",
		tvp5150_read(sd, TVP5150_MISC_CTL));
	dprintk0(sd->dev, "tvp5150: Autoswitch mask= 0x%02x\n",
		tvp5150_read(sd, TVP5150_AUTOSW_MSK));
	dprintk0(sd->dev, "tvp5150: Color killer threshold control = 0x%02x\n",
		tvp5150_read(sd, TVP5150_COLOR_KIL_THSH_CTL));
	dprintk0(sd->dev, "tvp5150: Luminance processing controls #1 #2 and #3 = %02x %02x %02x\n",
		tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_1),
		tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_2),
		tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_3));
	dprintk0(sd->dev, "tvp5150: Brightness control = 0x%02x\n",
		tvp5150_read(sd, TVP5150_BRIGHT_CTL));
	dprintk0(sd->dev, "tvp5150: Color saturation control = 0x%02x\n",
		tvp5150_read(sd, TVP5150_SATURATION_CTL));
	dprintk0(sd->dev, "tvp5150: Hue control = 0x%02x\n",
		tvp5150_read(sd, TVP5150_HUE_CTL));
	dprintk0(sd->dev, "tvp5150: Contrast control = 0x%02x\n",
		tvp5150_read(sd, TVP5150_CONTRAST_CTL));
	dprintk0(sd->dev, "tvp5150: Outputs and data rates select = 0x%02x\n",
		tvp5150_read(sd, TVP5150_DATA_RATE_SEL));
	dprintk0(sd->dev, "tvp5150: Configuration shared pins = 0x%02x\n",
		tvp5150_read(sd, TVP5150_CONF_SHARED_PIN));
	dprintk0(sd->dev, "tvp5150: Active video cropping start = 0x%02x%02x\n",
		tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_MSB),
		tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_LSB));
	dprintk0(sd->dev, "tvp5150: Active video cropping stop  = 0x%02x%02x\n",
		tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_MSB),
		tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_LSB));
	dprintk0(sd->dev, "tvp5150: Genlock/RTC = 0x%02x\n",
		tvp5150_read(sd, TVP5150_GENLOCK));
	dprintk0(sd->dev, "tvp5150: Horizontal sync start = 0x%02x\n",
		tvp5150_read(sd, TVP5150_HORIZ_SYNC_START));
	dprintk0(sd->dev, "tvp5150: Vertical blanking start = 0x%02x\n",
		tvp5150_read(sd, TVP5150_VERT_BLANKING_START));
	dprintk0(sd->dev, "tvp5150: Vertical blanking stop = 0x%02x\n",
		tvp5150_read(sd, TVP5150_VERT_BLANKING_STOP));
	dprintk0(sd->dev, "tvp5150: Chrominance processing control #1 and #2 = %02x %02x\n",
		tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_1),
		tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_2));
	dprintk0(sd->dev, "tvp5150: Interrupt reset register B = 0x%02x\n",
		tvp5150_read(sd, TVP5150_INT_RESET_REG_B));
	dprintk0(sd->dev, "tvp5150: Interrupt enable register B = 0x%02x\n",
		tvp5150_read(sd, TVP5150_INT_ENABLE_REG_B));
	dprintk0(sd->dev, "tvp5150: Interrupt configuration register B = 0x%02x\n",
		tvp5150_read(sd, TVP5150_INTT_CONFIG_REG_B));
	dprintk0(sd->dev, "tvp5150: Video standard = 0x%02x\n",
		tvp5150_read(sd, TVP5150_VIDEO_STD));
	dprintk0(sd->dev, "tvp5150: Chroma gain factor: Cb=0x%02x Cr=0x%02x\n",
		tvp5150_read(sd, TVP5150_CB_GAIN_FACT),
		tvp5150_read(sd, TVP5150_CR_GAIN_FACTOR));
	dprintk0(sd->dev, "tvp5150: Macrovision on counter = 0x%02x\n",
		tvp5150_read(sd, TVP5150_MACROVISION_ON_CTR));
	dprintk0(sd->dev, "tvp5150: Macrovision off counter = 0x%02x\n",
		tvp5150_read(sd, TVP5150_MACROVISION_OFF_CTR));
	dprintk0(sd->dev, "tvp5150: ITU-R BT.656.%d timing(TVP5150AM1 only)\n",
		(tvp5150_read(sd, TVP5150_REV_SELECT) & 1) ? 3 : 4);
	dprintk0(sd->dev, "tvp5150: Device ID = %02x%02x\n",
		tvp5150_read(sd, TVP5150_MSB_DEV_ID),
		tvp5150_read(sd, TVP5150_LSB_DEV_ID));
	dprintk0(sd->dev, "tvp5150: ROM version = (hex) %02x.%02x\n",
		tvp5150_read(sd, TVP5150_ROM_MAJOR_VER),
		tvp5150_read(sd, TVP5150_ROM_MINOR_VER));
	dprintk0(sd->dev, "tvp5150: Vertical line count = 0x%02x%02x\n",
		tvp5150_read(sd, TVP5150_VERT_LN_COUNT_MSB),
		tvp5150_read(sd, TVP5150_VERT_LN_COUNT_LSB));
	dprintk0(sd->dev, "tvp5150: Interrupt status register B = 0x%02x\n",
		tvp5150_read(sd, TVP5150_INT_STATUS_REG_B));
	dprintk0(sd->dev, "tvp5150: Interrupt active register B = 0x%02x\n",
		tvp5150_read(sd, TVP5150_INT_ACTIVE_REG_B));
	dprintk0(sd->dev, "tvp5150: Status regs #1 to #5 = %02x %02x %02x %02x %02x\n",
		tvp5150_read(sd, TVP5150_STATUS_REG_1),
		tvp5150_read(sd, TVP5150_STATUS_REG_2),
		tvp5150_read(sd, TVP5150_STATUS_REG_3),
		tvp5150_read(sd, TVP5150_STATUS_REG_4),
		tvp5150_read(sd, TVP5150_STATUS_REG_5));

	dump_reg_range(sd, "Teletext filter 1",   TVP5150_TELETEXT_FIL1_INI,
			TVP5150_TELETEXT_FIL1_END, 8);
	dump_reg_range(sd, "Teletext filter 2",   TVP5150_TELETEXT_FIL2_INI,
			TVP5150_TELETEXT_FIL2_END, 8);

	dprintk0(sd->dev, "tvp5150: Teletext filter enable = 0x%02x\n",
		tvp5150_read(sd, TVP5150_TELETEXT_FIL_ENA));
	dprintk0(sd->dev, "tvp5150: Interrupt status register A = 0x%02x\n",
		tvp5150_read(sd, TVP5150_INT_STATUS_REG_A));
	dprintk0(sd->dev, "tvp5150: Interrupt enable register A = 0x%02x\n",
		tvp5150_read(sd, TVP5150_INT_ENABLE_REG_A));
	dprintk0(sd->dev, "tvp5150: Interrupt configuration = 0x%02x\n",
		tvp5150_read(sd, TVP5150_INT_CONF));
	dprintk0(sd->dev, "tvp5150: VDP status register = 0x%02x\n",
		tvp5150_read(sd, TVP5150_VDP_STATUS_REG));
	dprintk0(sd->dev, "tvp5150: FIFO word count = 0x%02x\n",
		tvp5150_read(sd, TVP5150_FIFO_WORD_COUNT));
	dprintk0(sd->dev, "tvp5150: FIFO interrupt threshold = 0x%02x\n",
		tvp5150_read(sd, TVP5150_FIFO_INT_THRESHOLD));
	dprintk0(sd->dev, "tvp5150: FIFO reset = 0x%02x\n",
		tvp5150_read(sd, TVP5150_FIFO_RESET));
	dprintk0(sd->dev, "tvp5150: Line number interrupt = 0x%02x\n",
		tvp5150_read(sd, TVP5150_LINE_NUMBER_INT));
	dprintk0(sd->dev, "tvp5150: Pixel alignment register = 0x%02x%02x\n",
		tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_HIGH),
		tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_LOW));
	dprintk0(sd->dev, "tvp5150: FIFO output control = 0x%02x\n",
		tvp5150_read(sd, TVP5150_FIFO_OUT_CTRL));
	dprintk0(sd->dev, "tvp5150: Full field enable = 0x%02x\n",
		tvp5150_read(sd, TVP5150_FULL_FIELD_ENA));
	dprintk0(sd->dev, "tvp5150: Full field mode register = 0x%02x\n",
		tvp5150_read(sd, TVP5150_FULL_FIELD_MODE_REG));

	dump_reg_range(sd, "CC   data",   TVP5150_CC_DATA_INI,
			TVP5150_CC_DATA_END, 8);

	dump_reg_range(sd, "WSS  data",   TVP5150_WSS_DATA_INI,
			TVP5150_WSS_DATA_END, 8);

	dump_reg_range(sd, "VPS  data",   TVP5150_VPS_DATA_INI,
			TVP5150_VPS_DATA_END, 8);

	dump_reg_range(sd, "VITC data",   TVP5150_VITC_DATA_INI,
			TVP5150_VITC_DATA_END, 10);

	dump_reg_range(sd, "Line mode",   TVP5150_LINE_MODE_INI,
			TVP5150_LINE_MODE_END, 8);
	return 0;
}

/****************************************************************************
			Basic functions
 ****************************************************************************/

static void tvp5150_selmux(struct v4l2_subdev *sd)
{
	int opmode = 0;
	struct tvp5150 *decoder = to_tvp5150(sd);
	int input = 0;
	int val;

	/* Only tvp5150am1 and tvp5151 have signal generator support */
	if ((decoder->dev_id == 0x5150 && decoder->rom_ver == 0x0400) ||
	    (decoder->dev_id == 0x5151 && decoder->rom_ver == 0x0100)) {
		if (!decoder->enable)
			input = 8;
	}

	switch (decoder->input) {
	case TVP5150_COMPOSITE1:
		input |= 2;
		/* fall through */
	case TVP5150_COMPOSITE0:
		break;
	case TVP5150_SVIDEO:
	default:
		input |= 1;
		break;
	}

	dev_dbg_lvl(sd->dev, 1, debug, "Selecting video route: route input=%i, output=%i => tvp5150 input=%i, opmode=%i\n",
			decoder->input, decoder->output,
			input, opmode);

	tvp5150_write(sd, TVP5150_OP_MODE_CTL, opmode);
	tvp5150_write(sd, TVP5150_VD_IN_SRC_SEL_1, input);

	/*
	 * Setup the FID/GLCO/VLK/HVLK and INTREQ/GPCL/VBLK output signals. For
	 * S-Video we output the vertical lock (VLK) signal on FID/GLCO/VLK/HVLK
	 * and set INTREQ/GPCL/VBLK to logic 0. For composite we output the
	 * field indicator (FID) signal on FID/GLCO/VLK/HVLK and set
	 * INTREQ/GPCL/VBLK to logic 1.
	 */
	val = tvp5150_read(sd, TVP5150_MISC_CTL);
	if (val < 0) {
		dev_err(sd->dev, "%s: failed with error = %d\n", __func__, val);
		return;
	}

	if (decoder->input == TVP5150_SVIDEO)
		val = (val & ~TVP5150_MISC_CTL_GPCL) | TVP5150_MISC_CTL_HVLK;
	else
		val = (val & ~TVP5150_MISC_CTL_HVLK) | TVP5150_MISC_CTL_GPCL;
	tvp5150_write(sd, TVP5150_MISC_CTL, val);
};

struct i2c_reg_value {
	unsigned char reg;
	unsigned char value;
};

/* Default values as sugested at TVP5150AM1 datasheet */
static const struct i2c_reg_value tvp5150_init_default[] = {
	{ /* 0x00 */
		TVP5150_VD_IN_SRC_SEL_1, 0x00
	},
	{ /* 0x01 */
		TVP5150_ANAL_CHL_CTL, 0x15
	},
	{ /* 0x02 */
		TVP5150_OP_MODE_CTL, 0x00
	},
	{ /* 0x03 */
		TVP5150_MISC_CTL, 0x01
	},
	{ /* 0x06 */
		TVP5150_COLOR_KIL_THSH_CTL, 0x10
	},
	{ /* 0x07 */
		TVP5150_LUMA_PROC_CTL_1, 0x60
	},
	{ /* 0x08 */
		TVP5150_LUMA_PROC_CTL_2, 0x00
	},
	{ /* 0x09 */
		TVP5150_BRIGHT_CTL, 0x80
	},
	{ /* 0x0a */
		TVP5150_SATURATION_CTL, 0x80
	},
	{ /* 0x0b */
		TVP5150_HUE_CTL, 0x00
	},
	{ /* 0x0c */
		TVP5150_CONTRAST_CTL, 0x80
	},
	{ /* 0x0d */
		TVP5150_DATA_RATE_SEL, 0x47
	},
	{ /* 0x0e */
		TVP5150_LUMA_PROC_CTL_3, 0x00
	},
	{ /* 0x0f */
		TVP5150_CONF_SHARED_PIN, 0x08
	},
	{ /* 0x11 */
		TVP5150_ACT_VD_CROP_ST_MSB, 0x00
	},
	{ /* 0x12 */
		TVP5150_ACT_VD_CROP_ST_LSB, 0x00
	},
	{ /* 0x13 */
		TVP5150_ACT_VD_CROP_STP_MSB, 0x00
	},
	{ /* 0x14 */
		TVP5150_ACT_VD_CROP_STP_LSB, 0x00
	},
	{ /* 0x15 */
		TVP5150_GENLOCK, 0x01
	},
	{ /* 0x16 */
		TVP5150_HORIZ_SYNC_START, 0x80
	},
	{ /* 0x18 */
		TVP5150_VERT_BLANKING_START, 0x00
	},
	{ /* 0x19 */
		TVP5150_VERT_BLANKING_STOP, 0x00
	},
	{ /* 0x1a */
		TVP5150_CHROMA_PROC_CTL_1, 0x0c
	},
	{ /* 0x1b */
		TVP5150_CHROMA_PROC_CTL_2, 0x14
	},
	{ /* 0x1c */
		TVP5150_INT_RESET_REG_B, 0x00
	},
	{ /* 0x1d */
		TVP5150_INT_ENABLE_REG_B, 0x00
	},
	{ /* 0x1e */
		TVP5150_INTT_CONFIG_REG_B, 0x00
	},
	{ /* 0x28 */
		TVP5150_VIDEO_STD, 0x00
	},
	{ /* 0x2e */
		TVP5150_MACROVISION_ON_CTR, 0x0f
	},
	{ /* 0x2f */
		TVP5150_MACROVISION_OFF_CTR, 0x01
	},
	{ /* 0xbb */
		TVP5150_TELETEXT_FIL_ENA, 0x00
	},
	{ /* 0xc0 */
		TVP5150_INT_STATUS_REG_A, 0x00
	},
	{ /* 0xc1 */
		TVP5150_INT_ENABLE_REG_A, 0x00
	},
	{ /* 0xc2 */
		TVP5150_INT_CONF, 0x04
	},
	{ /* 0xc8 */
		TVP5150_FIFO_INT_THRESHOLD, 0x80
	},
	{ /* 0xc9 */
		TVP5150_FIFO_RESET, 0x00
	},
	{ /* 0xca */
		TVP5150_LINE_NUMBER_INT, 0x00
	},
	{ /* 0xcb */
		TVP5150_PIX_ALIGN_REG_LOW, 0x4e
	},
	{ /* 0xcc */
		TVP5150_PIX_ALIGN_REG_HIGH, 0x00
	},
	{ /* 0xcd */
		TVP5150_FIFO_OUT_CTRL, 0x01
	},
	{ /* 0xcf */
		TVP5150_FULL_FIELD_ENA, 0x00
	},
	{ /* 0xd0 */
		TVP5150_LINE_MODE_INI, 0x00
	},
	{ /* 0xfc */
		TVP5150_FULL_FIELD_MODE_REG, 0x7f
	},
	{ /* end of data */
		0xff, 0xff
	}
};

/* Default values as sugested at TVP5150AM1 datasheet */
static const struct i2c_reg_value tvp5150_init_enable[] = {
	{
		TVP5150_CONF_SHARED_PIN, 2
	}, {	/* Automatic offset and AGC enabled */
		TVP5150_ANAL_CHL_CTL, 0x15
	}, {	/* Activate YCrCb output 0x9 or 0xd ? */
		TVP5150_MISC_CTL, TVP5150_MISC_CTL_GPCL |
				  TVP5150_MISC_CTL_INTREQ_OE |
				  TVP5150_MISC_CTL_YCBCR_OE |
				  TVP5150_MISC_CTL_SYNC_OE |
				  TVP5150_MISC_CTL_VBLANK |
				  TVP5150_MISC_CTL_CLOCK_OE,
	}, {	/* Activates video std autodetection for all standards */
		TVP5150_AUTOSW_MSK, 0x0
	}, {	/* Default format: 0x47. For 4:2:2: 0x40 */
		TVP5150_DATA_RATE_SEL, 0x47
	}, {
		TVP5150_CHROMA_PROC_CTL_1, 0x0c
	}, {
		TVP5150_CHROMA_PROC_CTL_2, 0x54
	}, {	/* Non documented, but initialized on WinTV USB2 */
		0x27, 0x20
	}, {
		0xff, 0xff
	}
};

struct tvp5150_vbi_type {
	unsigned int vbi_type;
	unsigned int ini_line;
	unsigned int end_line;
	unsigned int by_field :1;
};

struct i2c_vbi_ram_value {
	u16 reg;
	struct tvp5150_vbi_type type;
	unsigned char values[16];
};

/* This struct have the values for each supported VBI Standard
 * by
 tvp5150_vbi_types should follow the same order as vbi_ram_default
 * value 0 means rom position 0x10, value 1 means rom position 0x30
 * and so on. There are 16 possible locations from 0 to 15.
 */

static struct i2c_vbi_ram_value vbi_ram_default[] = {

	/*
	 * FIXME: Current api doesn't handle all VBI types, those not
	 * yet supported are placed under #if 0
	 */
#if 0
	[0] = {0x010, /* Teletext, SECAM, WST System A */
		{V4L2_SLICED_TELETEXT_SECAM, 6, 23, 1},
		{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x26,
		  0xe6, 0xb4, 0x0e, 0x00, 0x00, 0x00, 0x10, 0x00 }
	},
#endif
	[1] = {0x030, /* Teletext, PAL, WST System B */
		{V4L2_SLICED_TELETEXT_B, 6, 22, 1},
		{ 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x2b,
		  0xa6, 0x72, 0x10, 0x00, 0x00, 0x00, 0x10, 0x00 }
	},
#if 0
	[2] = {0x050, /* Teletext, PAL, WST System C */
		{V4L2_SLICED_TELETEXT_PAL_C, 6, 22, 1},
		{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
		  0xa6, 0x98, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
	},
	[3] = {0x070, /* Teletext, NTSC, WST System B */
		{V4L2_SLICED_TELETEXT_NTSC_B, 10, 21, 1},
		{ 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x23,
		  0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
	},
	[4] = {0x090, /* Tetetext, NTSC NABTS System C */
		{V4L2_SLICED_TELETEXT_NTSC_C, 10, 21, 1},
		{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
		  0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x15, 0x00 }
	},
	[5] = {0x0b0, /* Teletext, NTSC-J, NABTS System D */
		{V4L2_SLICED_TELETEXT_NTSC_D, 10, 21, 1},
		{ 0xaa, 0xaa, 0xff, 0xff, 0xa7, 0x2e, 0x20, 0x23,
		  0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
	},
	[6] = {0x0d0, /* Closed Caption, PAL/SECAM */
		{V4L2_SLICED_CAPTION_625, 22, 22, 1},
		{ 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
		  0xa6, 0x7b, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
	},
#endif
	[7] = {0x0f0, /* Closed Caption, NTSC */
		{V4L2_SLICED_CAPTION_525, 21, 21, 1},
		{ 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
		  0x69, 0x8c, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
	},
	[8] = {0x110, /* Wide Screen Signal, PAL/SECAM */
		{V4L2_SLICED_WSS_625, 23, 23, 1},
		{ 0x5b, 0x55, 0xc5, 0xff, 0x00, 0x71, 0x6e, 0x42,
		  0xa6, 0xcd, 0x0f, 0x00, 0x00, 0x00, 0x3a, 0x00 }
	},
#if 0
	[9] = {0x130, /* Wide Screen Signal, NTSC C */
		{V4L2_SLICED_WSS_525, 20, 20, 1},
		{ 0x38, 0x00, 0x3f, 0x00, 0x00, 0x71, 0x6e, 0x43,
		  0x69, 0x7c, 0x08, 0x00, 0x00, 0x00, 0x39, 0x00 }
	},
	[10] = {0x150, /* Vertical Interval Timecode (VITC), PAL/SECAM */
		{V4l2_SLICED_VITC_625, 6, 22, 0},
		{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
		  0xa6, 0x85, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
	},
	[11] = {0x170, /* Vertical Interval Timecode (VITC), NTSC */
		{V4l2_SLICED_VITC_525, 10, 20, 0},
		{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
		  0x69, 0x94, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
	},
#endif
	[12] = {0x190, /* Video Program System (VPS), PAL */
		{V4L2_SLICED_VPS, 16, 16, 0},
		{ 0xaa, 0xaa, 0xff, 0xff, 0xba, 0xce, 0x2b, 0x0d,
		  0xa6, 0xda, 0x0b, 0x00, 0x00, 0x00, 0x60, 0x00 }
	},
	/* 0x1d0 User programmable */
};

static int tvp5150_write_inittab(struct v4l2_subdev *sd,
				const struct i2c_reg_value *regs)
{
	while (regs->reg != 0xff) {
		tvp5150_write(sd, regs->reg, regs->value);
		regs++;
	}
	return 0;
}

static int tvp5150_vdp_init(struct v4l2_subdev *sd)
{
	unsigned int i;
	int j;

	/* Disable Full Field */
	tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);

	/* Before programming, Line mode should be at 0xff */
	for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
		tvp5150_write(sd, i, 0xff);

	/* Load Ram Table */
	for (j = 0; j < ARRAY_SIZE(vbi_ram_default); j++) {
		const struct i2c_vbi_ram_value *regs = &vbi_ram_default[j];

		if (!regs->type.vbi_type)
			continue;

		tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_HIGH, regs->reg >> 8);
		tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_LOW, regs->reg);

		for (i = 0; i < 16; i++)
			tvp5150_write(sd, TVP5150_VDP_CONF_RAM_DATA, regs->values[i]);
	}
	return 0;
}

/* Fills VBI capabilities based on i2c_vbi_ram_value struct */
static int tvp5150_g_sliced_vbi_cap(struct v4l2_subdev *sd,
				struct v4l2_sliced_vbi_cap *cap)
{
	int line, i;

	dev_dbg_lvl(sd->dev, 1, debug, "g_sliced_vbi_cap\n");
	memset(cap, 0, sizeof(*cap));

	for (i = 0; i < ARRAY_SIZE(vbi_ram_default); i++) {
		const struct i2c_vbi_ram_value *regs = &vbi_ram_default[i];

		if (!regs->type.vbi_type)
			continue;

		for (line = regs->type.ini_line;
		     line <= regs->type.end_line;
		     line++) {
			cap->service_lines[0][line] |= regs->type.vbi_type;
		}
		cap->service_set |= regs->type.vbi_type;
	}
	return 0;
}

/* Set vbi processing
 * type - one of tvp5150_vbi_types
 * line - line to gather data
 * fields: bit 0 field1, bit 1, field2
 * flags (default=0xf0) is a bitmask, were set means:
 *	bit 7: enable filtering null bytes on CC
 *	bit 6: send data also to FIFO
 *	bit 5: don't allow data with errors on FIFO
 *	bit 4: enable ECC when possible
 * pix_align = pix alignment:
 *	LSB = field1
 *	MSB = field2
 */
static int tvp5150_set_vbi(struct v4l2_subdev *sd,
			unsigned int type, u8 flags, int line,
			const int fields)
{
	struct tvp5150 *decoder = to_tvp5150(sd);
	v4l2_std_id std = decoder->norm;
	u8 reg;
	int i, pos = 0;

	if (std == V4L2_STD_ALL) {
		dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
		return 0;
	} else if (std & V4L2_STD_625_50) {
		/* Don't follow NTSC Line number convension */
		line += 3;
	}

	if (line < 6 || line > 27)
		return 0;

	for (i = 0; i < ARRAY_SIZE(vbi_ram_default); i++) {
		const struct i2c_vbi_ram_value *regs =  &vbi_ram_default[i];

		if (!regs->type.vbi_type)
			continue;

		if ((type & regs->type.vbi_type) &&
		    (line >= regs->type.ini_line) &&
		    (line <= regs->type.end_line))
			break;
		pos++;
	}

	type = pos | (flags & 0xf0);
	reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;

	if (fields & 1)
		tvp5150_write(sd, reg, type);

	if (fields & 2)
		tvp5150_write(sd, reg + 1, type);

	return type;
}

static int tvp5150_get_vbi(struct v4l2_subdev *sd, int line)
{
	struct tvp5150 *decoder = to_tvp5150(sd);
	v4l2_std_id std = decoder->norm;
	u8 reg;
	int pos, type = 0;
	int i, ret = 0;

	if (std == V4L2_STD_ALL) {
		dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
		return 0;
	} else if (std & V4L2_STD_625_50) {
		/* Don't follow NTSC Line number convension */
		line += 3;
	}

	if (line < 6 || line > 27)
		return 0;

	reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;

	for (i = 0; i <= 1; i++) {
		ret = tvp5150_read(sd, reg + i);
		if (ret < 0) {
			dev_err(sd->dev, "%s: failed with error = %d\n",
				 __func__, ret);
			return 0;
		}
		pos = ret & 0x0f;
		if (pos < ARRAY_SIZE(vbi_ram_default))
			type |= vbi_ram_default[pos].type.vbi_type;
	}

	return type;
}

static int tvp5150_set_std(struct v4l2_subdev *sd, v4l2_std_id std)
{
	struct tvp5150 *decoder = to_tvp5150(sd);
	int fmt = 0;

	decoder->norm = std;

	/* First tests should be against specific std */

	if (std == V4L2_STD_NTSC_443) {
		fmt = VIDEO_STD_NTSC_4_43_BIT;
	} else if (std == V4L2_STD_PAL_M) {
		fmt = VIDEO_STD_PAL_M_BIT;
	} else if (std == V4L2_STD_PAL_N || std == V4L2_STD_PAL_Nc) {
		fmt = VIDEO_STD_PAL_COMBINATION_N_BIT;
	} else {
		/* Then, test against generic ones */
		if (std & V4L2_STD_NTSC)
			fmt = VIDEO_STD_NTSC_MJ_BIT;
		else if (std & V4L2_STD_PAL)
			fmt = VIDEO_STD_PAL_BDGHIN_BIT;
		else if (std & V4L2_STD_SECAM)
			fmt = VIDEO_STD_SECAM_BIT;
	}

	dev_dbg_lvl(sd->dev, 1, debug, "Set video std register to %d.\n", fmt);
	tvp5150_write(sd, TVP5150_VIDEO_STD, fmt);
	return 0;
}

static int tvp5150_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
{
	struct tvp5150 *decoder = to_tvp5150(sd);

	if (decoder->norm == std)
		return 0;

	/* Change cropping height limits */
	if (std & V4L2_STD_525_60)
		decoder->rect.height = TVP5150_V_MAX_525_60;
	else
		decoder->rect.height = TVP5150_V_MAX_OTHERS;


	return tvp5150_set_std(sd, std);
}

static int tvp5150_reset(struct v4l2_subdev *sd, u32 val)
{
	struct tvp5150 *decoder = to_tvp5150(sd);

	/* Initializes TVP5150 to its default values */
	tvp5150_write_inittab(sd, tvp5150_init_default);

	/* Initializes VDP registers */
	tvp5150_vdp_init(sd);

	/* Selects decoder input */
	tvp5150_selmux(sd);

	/* Initializes TVP5150 to stream enabled values */
	tvp5150_write_inittab(sd, tvp5150_init_enable);

	/* Initialize image preferences */
	v4l2_ctrl_handler_setup(&decoder->hdl);

	tvp5150_set_std(sd, decoder->norm);

	if (decoder->mbus_type == V4L2_MBUS_PARALLEL)
		tvp5150_write(sd, TVP5150_DATA_RATE_SEL, 0x40);

	return 0;
};

static int tvp5150_s_ctrl(struct v4l2_ctrl *ctrl)
{
	struct v4l2_subdev *sd = to_sd(ctrl);
	struct tvp5150 *decoder = to_tvp5150(sd);

	switch (ctrl->id) {
	case V4L2_CID_BRIGHTNESS:
		tvp5150_write(sd, TVP5150_BRIGHT_CTL, ctrl->val);
		return 0;
	case V4L2_CID_CONTRAST:
		tvp5150_write(sd, TVP5150_CONTRAST_CTL, ctrl->val);
		return 0;
	case V4L2_CID_SATURATION:
		tvp5150_write(sd, TVP5150_SATURATION_CTL, ctrl->val);
		return 0;
	case V4L2_CID_HUE:
		tvp5150_write(sd, TVP5150_HUE_CTL, ctrl->val);
		break;
	case V4L2_CID_TEST_PATTERN:
		decoder->enable = ctrl->val ? false : true;
		tvp5150_selmux(sd);
		return 0;
	}
	return -EINVAL;
}

static v4l2_std_id tvp5150_read_std(struct v4l2_subdev *sd)
{
	int val = tvp5150_read(sd, TVP5150_STATUS_REG_5);

	switch (val & 0x0F) {
	case 0x01:
		return V4L2_STD_NTSC;
	case 0x03:
		return V4L2_STD_PAL;
	case 0x05:
		return V4L2_STD_PAL_M;
	case 0x07:
		return V4L2_STD_PAL_N | V4L2_STD_PAL_Nc;
	case 0x09:
		return V4L2_STD_NTSC_443;
	case 0xb:
		return V4L2_STD_SECAM;
	default:
		return V4L2_STD_UNKNOWN;
	}
}

static int tvp5150_fill_fmt(struct v4l2_subdev *sd,
		struct v4l2_subdev_pad_config *cfg,
		struct v4l2_subdev_format *format)
{
	struct v4l2_mbus_framefmt *f;
	struct tvp5150 *decoder = to_tvp5150(sd);

	if (!format || (format->pad != DEMOD_PAD_VID_OUT))
		return -EINVAL;

	f = &format->format;

	f->width = decoder->rect.width;
	f->height = decoder->rect.height / 2;

	f->code = MEDIA_BUS_FMT_UYVY8_2X8;
	f->field = V4L2_FIELD_ALTERNATE;
	f->colorspace = V4L2_COLORSPACE_SMPTE170M;

	dev_dbg_lvl(sd->dev, 1, debug, "width = %d, height = %d\n", f->width,
			f->height);
	return 0;
}

static int tvp5150_set_selection(struct v4l2_subdev *sd,
				 struct v4l2_subdev_pad_config *cfg,
				 struct v4l2_subdev_selection *sel)
{
	struct tvp5150 *decoder = to_tvp5150(sd);
	struct v4l2_rect rect = sel->r;
	v4l2_std_id std;
	int hmax;

	if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE ||
	    sel->target != V4L2_SEL_TGT_CROP)
		return -EINVAL;

	dev_dbg_lvl(sd->dev, 1, debug, "%s left=%d, top=%d, width=%d, height=%d\n",
		__func__, rect.left, rect.top, rect.width, rect.height);

	/* tvp5150 has some special limits */
	rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT);
	rect.width = clamp_t(unsigned int, rect.width,
			     TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect.left,
			     TVP5150_H_MAX - rect.left);
	rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP);

	/* Calculate height based on current standard */
	if (decoder->norm == V4L2_STD_ALL)
		std = tvp5150_read_std(sd);
	else
		std = decoder->norm;

	if (std & V4L2_STD_525_60)
		hmax = TVP5150_V_MAX_525_60;
	else
		hmax = TVP5150_V_MAX_OTHERS;

	rect.height = clamp_t(unsigned int, rect.height,
			      hmax - TVP5150_MAX_CROP_TOP - rect.top,
			      hmax - rect.top);

	tvp5150_write(sd, TVP5150_VERT_BLANKING_START, rect.top);
	tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP,
		      rect.top + rect.height - hmax);
	tvp5150_write(sd, TVP5150_ACT_VD_CROP_ST_MSB,
		      rect.left >> TVP5150_CROP_SHIFT);
	tvp5150_write(sd, TVP5150_ACT_VD_CROP_ST_LSB,
		      rect.left | (1 << TVP5150_CROP_SHIFT));
	tvp5150_write(sd, TVP5150_ACT_VD_CROP_STP_MSB,
		      (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >>
		      TVP5150_CROP_SHIFT);
	tvp5150_write(sd, TVP5150_ACT_VD_CROP_STP_LSB,
		      rect.left + rect.width - TVP5150_MAX_CROP_LEFT);

	decoder->rect = rect;

	return 0;
}

static int tvp5150_get_selection(struct v4l2_subdev *sd,
				 struct v4l2_subdev_pad_config *cfg,
				 struct v4l2_subdev_selection *sel)
{
	struct tvp5150 *decoder = container_of(sd, struct tvp5150, sd);
	v4l2_std_id std;

	if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE)
		return -EINVAL;

	switch (sel->target) {
	case V4L2_SEL_TGT_CROP_BOUNDS:
	case V4L2_SEL_TGT_CROP_DEFAULT:
		sel->r.left = 0;
		sel->r.top = 0;
		sel->r.width = TVP5150_H_MAX;

		/* Calculate height based on current standard */
		if (decoder->norm == V4L2_STD_ALL)
			std = tvp5150_read_std(sd);
		else
			std = decoder->norm;
		if (std & V4L2_STD_525_60)
			sel->r.height = TVP5150_V_MAX_525_60;
		else
			sel->r.height = TVP5150_V_MAX_OTHERS;
		return 0;
	case V4L2_SEL_TGT_CROP:
		sel->r = decoder->rect;
		return 0;
	default:
		return -EINVAL;
	}
}

static int tvp5150_g_mbus_config(struct v4l2_subdev *sd,
				 struct v4l2_mbus_config *cfg)
{
	struct tvp5150 *decoder = to_tvp5150(sd);

	cfg->type = decoder->mbus_type;
	cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING
		   | V4L2_MBUS_FIELD_EVEN_LOW | V4L2_MBUS_DATA_ACTIVE_HIGH;

	return 0;
}

/****************************************************************************
			V4L2 subdev pad ops
 ****************************************************************************/
static int tvp5150_enum_mbus_code(struct v4l2_subdev *sd,
		struct v4l2_subdev_pad_config *cfg,
		struct v4l2_subdev_mbus_code_enum *code)
{
	if (code->pad || code->index)
		return -EINVAL;

	code->code = MEDIA_BUS_FMT_UYVY8_2X8;
	return 0;
}

static int tvp5150_enum_frame_size(struct v4l2_subdev *sd,
				   struct v4l2_subdev_pad_config *cfg,
				   struct v4l2_subdev_frame_size_enum *fse)
{
	struct tvp5150 *decoder = to_tvp5150(sd);

	if (fse->index >= 8 || fse->code != MEDIA_BUS_FMT_UYVY8_2X8)
		return -EINVAL;

	fse->code = MEDIA_BUS_FMT_UYVY8_2X8;
	fse->min_width = decoder->rect.width;
	fse->max_width = decoder->rect.width;
	fse->min_height = decoder->rect.height / 2;
	fse->max_height = decoder->rect.height / 2;

	return 0;
}

/****************************************************************************
			Media entity ops
 ****************************************************************************/

#ifdef CONFIG_MEDIA_CONTROLLER
static int tvp5150_link_setup(struct media_entity *entity,
			      const struct media_pad *local,
			      const struct media_pad *remote, u32 flags)
{
	struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
	struct tvp5150 *decoder = to_tvp5150(sd);
	int i;

	for (i = 0; i < TVP5150_INPUT_NUM; i++) {
		if (remote->entity == &decoder->input_ent[i])
			break;
	}

	/* Do nothing for entities that are not input connectors */
	if (i == TVP5150_INPUT_NUM)
		return 0;

	decoder->input = i;

	tvp5150_selmux(sd);

	return 0;
}

static const struct media_entity_operations tvp5150_sd_media_ops = {
	.link_setup = tvp5150_link_setup,
};
#endif

/****************************************************************************
			I2C Command
 ****************************************************************************/

static int tvp5150_s_stream(struct v4l2_subdev *sd, int enable)
{
	struct tvp5150 *decoder = to_tvp5150(sd);
	int val;

	/* Enable or disable the video output signals. */
	val = tvp5150_read(sd, TVP5150_MISC_CTL);
	if (val < 0)
		return val;

	val &= ~(TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_SYNC_OE |
		 TVP5150_MISC_CTL_CLOCK_OE);

	if (enable) {
		/*
		 * Enable the YCbCr and clock outputs. In discrete sync mode
		 * (non-BT.656) additionally enable the the sync outputs.
		 */
		val |= TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_CLOCK_OE;
		if (decoder->mbus_type == V4L2_MBUS_PARALLEL)
			val |= TVP5150_MISC_CTL_SYNC_OE;
	}

	tvp5150_write(sd, TVP5150_MISC_CTL, val);

	return 0;
}

static int tvp5150_s_routing(struct v4l2_subdev *sd,
			     u32 input, u32 output, u32 config)
{
	struct tvp5150 *decoder = to_tvp5150(sd);

	decoder->input = input;
	decoder->output = output;

	if (output == TVP5150_BLACK_SCREEN)
		decoder->enable = false;
	else
		decoder->enable = true;

	tvp5150_selmux(sd);
	return 0;
}

static int tvp5150_s_raw_fmt(struct v4l2_subdev *sd, struct v4l2_vbi_format *fmt)
{
	/*
	 * this is for capturing 36 raw vbi lines
	 * if there's a way to cut off the beginning 2 vbi lines
	 * with the tvp5150 then the vbi line count could be lowered
	 * to 17 lines/field again, although I couldn't find a register
	 * which could do that cropping
	 */

	if (fmt->sample_format == V4L2_PIX_FMT_GREY)
		tvp5150_write(sd, TVP5150_LUMA_PROC_CTL_1, 0x70);
	if (fmt->count[0] == 18 && fmt->count[1] == 18) {
		tvp5150_write(sd, TVP5150_VERT_BLANKING_START, 0x00);
		tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP, 0x01);
	}
	return 0;
}

static int tvp5150_s_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
{
	int i;

	if (svbi->service_set != 0) {
		for (i = 0; i <= 23; i++) {
			svbi->service_lines[1][i] = 0;
			svbi->service_lines[0][i] =
				tvp5150_set_vbi(sd, svbi->service_lines[0][i],
						0xf0, i, 3);
		}
		/* Enables FIFO */
		tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 1);
	} else {
		/* Disables FIFO*/
		tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 0);

		/* Disable Full Field */
		tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);

		/* Disable Line modes */
		for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
			tvp5150_write(sd, i, 0xff);
	}
	return 0;
}

static int tvp5150_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
{
	int i, mask = 0;

	memset(svbi->service_lines, 0, sizeof(svbi->service_lines));

	for (i = 0; i <= 23; i++) {
		svbi->service_lines[0][i] =
			tvp5150_get_vbi(sd, i);
		mask |= svbi->service_lines[0][i];
	}
	svbi->service_set = mask;
	return 0;
}

#ifdef CONFIG_VIDEO_ADV_DEBUG
static int tvp5150_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
{
	int res;

	res = tvp5150_read(sd, reg->reg & 0xff);
	if (res < 0) {
		dev_err(sd->dev, "%s: failed with error = %d\n", __func__, res);
		return res;
	}

	reg->val = res;
	reg->size = 1;
	return 0;
}

static int tvp5150_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
{
	return tvp5150_write(sd, reg->reg & 0xff, reg->val & 0xff);
}
#endif

static int tvp5150_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
{
	int status = tvp5150_read(sd, 0x88);

	vt->signal = ((status & 0x04) && (status & 0x02)) ? 0xffff : 0x0;
	return 0;
}

static int tvp5150_registered(struct v4l2_subdev *sd)
{
#ifdef CONFIG_MEDIA_CONTROLLER
	struct tvp5150 *decoder = to_tvp5150(sd);
	int ret = 0;
	int i;

	for (i = 0; i < TVP5150_INPUT_NUM; i++) {
		struct media_entity *input = &decoder->input_ent[i];
		struct media_pad *pad = &decoder->input_pad[i];

		if (!input->name)
			continue;

		decoder->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;

		ret = media_entity_pads_init(input, 1, pad);
		if (ret < 0)
			return ret;

		ret = media_device_register_entity(sd->v4l2_dev->mdev, input);
		if (ret < 0)
			return ret;

		ret = media_create_pad_link(input, 0, &sd->entity,
					    DEMOD_PAD_IF_INPUT, 0);
		if (ret < 0) {
			media_device_unregister_entity(input);
			return ret;
		}
	}
#endif

	return 0;
}

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

static const struct v4l2_ctrl_ops tvp5150_ctrl_ops = {
	.s_ctrl = tvp5150_s_ctrl,
};

static const struct v4l2_subdev_core_ops tvp5150_core_ops = {
	.log_status = tvp5150_log_status,
	.reset = tvp5150_reset,
#ifdef CONFIG_VIDEO_ADV_DEBUG
	.g_register = tvp5150_g_register,
	.s_register = tvp5150_s_register,
#endif
};

static const struct v4l2_subdev_tuner_ops tvp5150_tuner_ops = {
	.g_tuner = tvp5150_g_tuner,
};

static const struct v4l2_subdev_video_ops tvp5150_video_ops = {
	.s_std = tvp5150_s_std,
	.s_stream = tvp5150_s_stream,
	.s_routing = tvp5150_s_routing,
	.g_mbus_config = tvp5150_g_mbus_config,
};

static const struct v4l2_subdev_vbi_ops tvp5150_vbi_ops = {
	.g_sliced_vbi_cap = tvp5150_g_sliced_vbi_cap,
	.g_sliced_fmt = tvp5150_g_sliced_fmt,
	.s_sliced_fmt = tvp5150_s_sliced_fmt,
	.s_raw_fmt = tvp5150_s_raw_fmt,
};

static const struct v4l2_subdev_pad_ops tvp5150_pad_ops = {
	.enum_mbus_code = tvp5150_enum_mbus_code,
	.enum_frame_size = tvp5150_enum_frame_size,
	.set_fmt = tvp5150_fill_fmt,
	.get_fmt = tvp5150_fill_fmt,
	.get_selection = tvp5150_get_selection,
	.set_selection = tvp5150_set_selection,
};

static const struct v4l2_subdev_ops tvp5150_ops = {
	.core = &tvp5150_core_ops,
	.tuner = &tvp5150_tuner_ops,
	.video = &tvp5150_video_ops,
	.vbi = &tvp5150_vbi_ops,
	.pad = &tvp5150_pad_ops,
};

static const struct v4l2_subdev_internal_ops tvp5150_internal_ops = {
	.registered = tvp5150_registered,
};


/****************************************************************************
			I2C Client & Driver
 ****************************************************************************/

static int tvp5150_detect_version(struct tvp5150 *core)
{
	struct v4l2_subdev *sd = &core->sd;
	struct i2c_client *c = v4l2_get_subdevdata(sd);
	unsigned int i;
	u8 regs[4];
	int res;

	/*
	 * Read consequent registers - TVP5150_MSB_DEV_ID, TVP5150_LSB_DEV_ID,
	 * TVP5150_ROM_MAJOR_VER, TVP5150_ROM_MINOR_VER
	 */
	for (i = 0; i < 4; i++) {
		res = tvp5150_read(sd, TVP5150_MSB_DEV_ID + i);
		if (res < 0)
			return res;
		regs[i] = res;
	}

	core->dev_id = (regs[0] << 8) | regs[1];
	core->rom_ver = (regs[2] << 8) | regs[3];

	dev_info(sd->dev, "tvp%04x (%u.%u) chip found @ 0x%02x (%s)\n",
		  core->dev_id, regs[2], regs[3], c->addr << 1,
		  c->adapter->name);

	if (core->dev_id == 0x5150 && core->rom_ver == 0x0321) {
		dev_info(sd->dev, "tvp5150a detected.\n");
	} else if (core->dev_id == 0x5150 && core->rom_ver == 0x0400) {
		dev_info(sd->dev, "tvp5150am1 detected.\n");

		/* ITU-T BT.656.4 timing */
		tvp5150_write(sd, TVP5150_REV_SELECT, 0);
	} else if (core->dev_id == 0x5151 && core->rom_ver == 0x0100) {
		dev_info(sd->dev, "tvp5151 detected.\n");
	} else {
		dev_info(sd->dev, "*** unknown tvp%04x chip detected.\n",
			  core->dev_id);
	}

	return 0;
}

static int tvp5150_init(struct i2c_client *c)
{
	struct gpio_desc *pdn_gpio;
	struct gpio_desc *reset_gpio;

	pdn_gpio = devm_gpiod_get_optional(&c->dev, "pdn", GPIOD_OUT_HIGH);
	if (IS_ERR(pdn_gpio))
		return PTR_ERR(pdn_gpio);

	if (pdn_gpio) {
		gpiod_set_value_cansleep(pdn_gpio, 0);
		/* Delay time between power supplies active and reset */
		msleep(20);
	}

	reset_gpio = devm_gpiod_get_optional(&c->dev, "reset", GPIOD_OUT_HIGH);
	if (IS_ERR(reset_gpio))
		return PTR_ERR(reset_gpio);

	if (reset_gpio) {
		/* RESETB pulse duration */
		ndelay(500);
		gpiod_set_value_cansleep(reset_gpio, 0);
		/* Delay time between end of reset to I2C active */
		usleep_range(200, 250);
	}

	return 0;
}

static int tvp5150_parse_dt(struct tvp5150 *decoder, struct device_node *np)
{
	struct v4l2_fwnode_endpoint bus_cfg;
	struct device_node *ep;
#ifdef CONFIG_MEDIA_CONTROLLER
	struct device_node *connectors, *child;
	struct media_entity *input;
	const char *name;
	u32 input_type;
#endif
	unsigned int flags;
	int ret = 0;

	ep = of_graph_get_next_endpoint(np, NULL);
	if (!ep)
		return -EINVAL;

	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &bus_cfg);
	if (ret)
		goto err;

	flags = bus_cfg.bus.parallel.flags;

	if (bus_cfg.bus_type == V4L2_MBUS_PARALLEL &&
	    !(flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH &&
	      flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH &&
	      flags & V4L2_MBUS_FIELD_EVEN_LOW)) {
		ret = -EINVAL;
		goto err;
	}

	decoder->mbus_type = bus_cfg.bus_type;

#ifdef CONFIG_MEDIA_CONTROLLER
	connectors = of_get_child_by_name(np, "connectors");

	if (!connectors)
		goto err;

	for_each_available_child_of_node(connectors, child) {
		ret = of_property_read_u32(child, "input", &input_type);
		if (ret) {
			dev_err(decoder->sd.dev,
				 "missing type property in node %s\n",
				 child->name);
			goto err_connector;
		}

		if (input_type >= TVP5150_INPUT_NUM) {
			ret = -EINVAL;
			goto err_connector;
		}

		input = &decoder->input_ent[input_type];

		/* Each input connector can only be defined once */
		if (input->name) {
			dev_err(decoder->sd.dev,
				 "input %s with same type already exists\n",
				 input->name);
			ret = -EINVAL;
			goto err_connector;
		}

		switch (input_type) {
		case TVP5150_COMPOSITE0:
		case TVP5150_COMPOSITE1:
			input->function = MEDIA_ENT_F_CONN_COMPOSITE;
			break;
		case TVP5150_SVIDEO:
			input->function = MEDIA_ENT_F_CONN_SVIDEO;
			break;
		}

		input->flags = MEDIA_ENT_FL_CONNECTOR;

		ret = of_property_read_string(child, "label", &name);
		if (ret < 0) {
			dev_err(decoder->sd.dev,
				 "missing label property in node %s\n",
				 child->name);
			goto err_connector;
		}

		input->name = name;
	}

err_connector:
	of_node_put(connectors);
#endif
err:
	of_node_put(ep);
	return ret;
}

static const char * const tvp5150_test_patterns[2] = {
	"Disabled",
	"Black screen"
};

static int tvp5150_probe(struct i2c_client *c,
			 const struct i2c_device_id *id)
{
	struct tvp5150 *core;
	struct v4l2_subdev *sd;
	struct device_node *np = c->dev.of_node;
	int res;

	/* Check if the adapter supports the needed features */
	if (!i2c_check_functionality(c->adapter,
	     I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
		return -EIO;

	res = tvp5150_init(c);
	if (res)
		return res;

	core = devm_kzalloc(&c->dev, sizeof(*core), GFP_KERNEL);
	if (!core)
		return -ENOMEM;

	sd = &core->sd;

	if (IS_ENABLED(CONFIG_OF) && np) {
		res = tvp5150_parse_dt(core, np);
		if (res) {
			dev_err(sd->dev, "DT parsing error: %d\n", res);
			return res;
		}
	} else {
		/* Default to BT.656 embedded sync */
		core->mbus_type = V4L2_MBUS_BT656;
	}

	v4l2_i2c_subdev_init(sd, c, &tvp5150_ops);
	sd->internal_ops = &tvp5150_internal_ops;
	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;

#if defined(CONFIG_MEDIA_CONTROLLER)
	core->pads[DEMOD_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
	core->pads[DEMOD_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
	core->pads[DEMOD_PAD_VBI_OUT].flags = MEDIA_PAD_FL_SOURCE;

	sd->entity.function = MEDIA_ENT_F_ATV_DECODER;

	res = media_entity_pads_init(&sd->entity, DEMOD_NUM_PADS, core->pads);
	if (res < 0)
		return res;

	sd->entity.ops = &tvp5150_sd_media_ops;
#endif

	res = tvp5150_detect_version(core);
	if (res < 0)
		return res;

	core->norm = V4L2_STD_ALL;	/* Default is autodetect */
	core->input = TVP5150_COMPOSITE1;
	core->enable = true;

	v4l2_ctrl_handler_init(&core->hdl, 5);
	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
			V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
			V4L2_CID_CONTRAST, 0, 255, 1, 128);
	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
			V4L2_CID_SATURATION, 0, 255, 1, 128);
	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
			V4L2_CID_HUE, -128, 127, 1, 0);
	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
			V4L2_CID_PIXEL_RATE, 27000000,
			27000000, 1, 27000000);
	v4l2_ctrl_new_std_menu_items(&core->hdl, &tvp5150_ctrl_ops,
				     V4L2_CID_TEST_PATTERN,
				     ARRAY_SIZE(tvp5150_test_patterns),
				     0, 0, tvp5150_test_patterns);
	sd->ctrl_handler = &core->hdl;
	if (core->hdl.error) {
		res = core->hdl.error;
		goto err;
	}

	/* Default is no cropping */
	core->rect.top = 0;
	if (tvp5150_read_std(sd) & V4L2_STD_525_60)
		core->rect.height = TVP5150_V_MAX_525_60;
	else
		core->rect.height = TVP5150_V_MAX_OTHERS;
	core->rect.left = 0;
	core->rect.width = TVP5150_H_MAX;

	tvp5150_reset(sd, 0);	/* Calls v4l2_ctrl_handler_setup() */

	res = v4l2_async_register_subdev(sd);
	if (res < 0)
		goto err;

	if (debug > 1)
		tvp5150_log_status(sd);
	return 0;

err:
	v4l2_ctrl_handler_free(&core->hdl);
	return res;
}

static int tvp5150_remove(struct i2c_client *c)
{
	struct v4l2_subdev *sd = i2c_get_clientdata(c);
	struct tvp5150 *decoder = to_tvp5150(sd);

	dev_dbg_lvl(sd->dev, 1, debug,
		"tvp5150.c: removing tvp5150 adapter on address 0x%x\n",
		c->addr << 1);

	v4l2_async_unregister_subdev(sd);
	v4l2_ctrl_handler_free(&decoder->hdl);
	return 0;
}

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

static const struct i2c_device_id tvp5150_id[] = {
	{ "tvp5150", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, tvp5150_id);

#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id tvp5150_of_match[] = {
	{ .compatible = "ti,tvp5150", },
	{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, tvp5150_of_match);
#endif

static struct i2c_driver tvp5150_driver = {
	.driver = {
		.of_match_table = of_match_ptr(tvp5150_of_match),
		.name	= "tvp5150",
	},
	.probe		= tvp5150_probe,
	.remove		= tvp5150_remove,
	.id_table	= tvp5150_id,
};

module_i2c_driver(tvp5150_driver);