summaryrefslogtreecommitdiff
path: root/drivers/media/pci/saa7134/saa7134-core.c
blob: 2d582c02adbf92068ac1160baa3e2be0a550b074 (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
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *
 * device driver for philips saa7134 based TV cards
 * driver core
 *
 * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
 */

#include "saa7134.h"
#include "saa7134-reg.h"

#include <linux/init.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/kmod.h>
#include <linux/sound.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/mutex.h>
#include <linux/dma-mapping.h>
#include <linux/pm.h>

MODULE_DESCRIPTION("v4l2 driver module for saa7130/34 based TV cards");
MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
MODULE_LICENSE("GPL");
MODULE_VERSION(SAA7134_VERSION);


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

static unsigned int irq_debug;
module_param(irq_debug, int, 0644);
MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");

static unsigned int core_debug;
module_param(core_debug, int, 0644);
MODULE_PARM_DESC(core_debug,"enable debug messages [core]");

static unsigned int gpio_tracking;
module_param(gpio_tracking, int, 0644);
MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]");

static unsigned int alsa = 1;
module_param(alsa, int, 0644);
MODULE_PARM_DESC(alsa,"enable/disable ALSA DMA sound [dmasound]");

static unsigned int latency = UNSET;
module_param(latency, int, 0444);
MODULE_PARM_DESC(latency,"pci latency timer");

int saa7134_no_overlay=-1;
module_param_named(no_overlay, saa7134_no_overlay, int, 0444);
MODULE_PARM_DESC(no_overlay, "allow override overlay default (0 disables, 1 enables) [some VIA/SIS chipsets are known to have problem with overlay]");

bool saa7134_userptr;
module_param(saa7134_userptr, bool, 0644);
MODULE_PARM_DESC(saa7134_userptr, "enable page-aligned userptr support");

static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
static unsigned int vbi_nr[]   = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
static unsigned int tuner[]    = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
static unsigned int card[]     = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };


module_param_array(video_nr, int, NULL, 0444);
module_param_array(vbi_nr,   int, NULL, 0444);
module_param_array(radio_nr, int, NULL, 0444);
module_param_array(tuner,    int, NULL, 0444);
module_param_array(card,     int, NULL, 0444);

MODULE_PARM_DESC(video_nr, "video device number");
MODULE_PARM_DESC(vbi_nr,   "vbi device number");
MODULE_PARM_DESC(radio_nr, "radio device number");
MODULE_PARM_DESC(tuner,    "tuner type");
MODULE_PARM_DESC(card,     "card type");

DEFINE_MUTEX(saa7134_devlist_lock);
EXPORT_SYMBOL(saa7134_devlist_lock);
LIST_HEAD(saa7134_devlist);
EXPORT_SYMBOL(saa7134_devlist);
static LIST_HEAD(mops_list);
static unsigned int saa7134_devcount;

int (*saa7134_dmasound_init)(struct saa7134_dev *dev);
int (*saa7134_dmasound_exit)(struct saa7134_dev *dev);

#define core_dbg(fmt, arg...) do { \
	if (core_debug) \
		printk(KERN_DEBUG pr_fmt("core: " fmt), ## arg); \
	} while (0)

#define irq_dbg(level, fmt, arg...)  do {\
	if (irq_debug > level) \
		printk(KERN_DEBUG pr_fmt("irq: " fmt), ## arg); \
	} while (0)

void saa7134_track_gpio(struct saa7134_dev *dev, const char *msg)
{
	unsigned long mode,status;

	if (!gpio_tracking)
		return;
	/* rising SAA7134_GPIO_GPRESCAN reads the status */
	saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0);
	saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN);
	mode   = saa_readl(SAA7134_GPIO_GPMODE0   >> 2) & 0xfffffff;
	status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff;
	core_dbg("%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n",
	       dev->name, mode, (~mode) & status, mode & status, msg);
}

void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value)
{
	u32 index, bitval;

	index = 1 << bit_no;
	switch (value) {
	case 0: /* static value */
	case 1:
		core_dbg("setting GPIO%d to static %d\n", bit_no, value);
		/* turn sync mode off if necessary */
		if (index & 0x00c00000)
			saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x00);
		if (value)
			bitval = index;
		else
			bitval = 0;
		saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, index);
		saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, index, bitval);
		break;
	case 3:	/* tristate */
		core_dbg("setting GPIO%d to tristate\n", bit_no);
		saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, 0);
		break;
	}
}

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


/* ----------------------------------------------------------- */
/* delayed request_module                                      */

#if defined(CONFIG_MODULES) && defined(MODULE)

static void request_module_async(struct work_struct *work){
	struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk);
	if (card_is_empress(dev))
		request_module("saa7134-empress");
	if (card_is_dvb(dev))
		request_module("saa7134-dvb");
	if (card_is_go7007(dev))
		request_module("saa7134-go7007");
	if (alsa) {
		if (dev->pci->device != PCI_DEVICE_ID_PHILIPS_SAA7130)
			request_module("saa7134-alsa");
	}
}

static void request_submodules(struct saa7134_dev *dev)
{
	INIT_WORK(&dev->request_module_wk, request_module_async);
	schedule_work(&dev->request_module_wk);
}

static void flush_request_submodules(struct saa7134_dev *dev)
{
	flush_work(&dev->request_module_wk);
}

#else
#define request_submodules(dev)
#define flush_request_submodules(dev)
#endif /* CONFIG_MODULES */

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

/* nr of (saa7134-)pages for the given buffer size */
static int saa7134_buffer_pages(int size)
{
	size  = PAGE_ALIGN(size);
	size += PAGE_SIZE; /* for non-page-aligned buffers */
	size /= 4096;
	return size;
}

/* calc max # of buffers from size (must not exceed the 4MB virtual
 * address space per DMA channel) */
int saa7134_buffer_count(unsigned int size, unsigned int count)
{
	unsigned int maxcount;

	maxcount = 1024 / saa7134_buffer_pages(size);
	if (count > maxcount)
		count = maxcount;
	return count;
}

int saa7134_buffer_startpage(struct saa7134_buf *buf)
{
	return saa7134_buffer_pages(vb2_plane_size(&buf->vb2.vb2_buf, 0))
			* buf->vb2.vb2_buf.index;
}

unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
{
	unsigned long base;
	struct sg_table *dma = vb2_dma_sg_plane_desc(&buf->vb2.vb2_buf, 0);

	base  = saa7134_buffer_startpage(buf) * 4096;
	base += dma->sgl[0].offset;
	return base;
}

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

int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
{
	__le32       *cpu;
	dma_addr_t   dma_addr = 0;

	cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
	if (NULL == cpu)
		return -ENOMEM;
	pt->size = SAA7134_PGTABLE_SIZE;
	pt->cpu  = cpu;
	pt->dma  = dma_addr;
	return 0;
}

int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
			  struct scatterlist *list, unsigned int length,
			  unsigned int startpage)
{
	__le32        *ptr;
	unsigned int  i, p;

	BUG_ON(NULL == pt || NULL == pt->cpu);

	ptr = pt->cpu + startpage;
	for (i = 0; i < length; i++, list = sg_next(list)) {
		for (p = 0; p * 4096 < list->length; p++, ptr++)
			*ptr = cpu_to_le32(sg_dma_address(list) +
						list->offset + p * 4096);
	}
	return 0;
}

void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
{
	if (NULL == pt->cpu)
		return;
	pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
	pt->cpu = NULL;
}

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

int saa7134_buffer_queue(struct saa7134_dev *dev,
			 struct saa7134_dmaqueue *q,
			 struct saa7134_buf *buf)
{
	struct saa7134_buf *next = NULL;
	unsigned long flags;

	spin_lock_irqsave(&dev->slock, flags);
	core_dbg("buffer_queue %p\n", buf);
	if (NULL == q->curr) {
		if (!q->need_two) {
			q->curr = buf;
			buf->activate(dev, buf, NULL);
		} else if (list_empty(&q->queue)) {
			list_add_tail(&buf->entry, &q->queue);
		} else {
			next = list_entry(q->queue.next, struct saa7134_buf,
					  entry);
			q->curr = buf;
			buf->activate(dev, buf, next);
		}
	} else {
		list_add_tail(&buf->entry, &q->queue);
	}
	spin_unlock_irqrestore(&dev->slock, flags);
	return 0;
}

void saa7134_buffer_finish(struct saa7134_dev *dev,
			   struct saa7134_dmaqueue *q,
			   unsigned int state)
{
	core_dbg("buffer_finish %p\n", q->curr);

	/* finish current buffer */
	q->curr->vb2.vb2_buf.timestamp = ktime_get_ns();
	q->curr->vb2.sequence = q->seq_nr++;
	vb2_buffer_done(&q->curr->vb2.vb2_buf, state);
	q->curr = NULL;
}

void saa7134_buffer_next(struct saa7134_dev *dev,
			 struct saa7134_dmaqueue *q)
{
	struct saa7134_buf *buf,*next = NULL;

	assert_spin_locked(&dev->slock);
	BUG_ON(NULL != q->curr);

	if (!list_empty(&q->queue)) {
		/* activate next one from queue */
		buf = list_entry(q->queue.next, struct saa7134_buf, entry);
		core_dbg("buffer_next %p [prev=%p/next=%p]\n",
			buf, q->queue.prev, q->queue.next);
		list_del(&buf->entry);
		if (!list_empty(&q->queue))
			next = list_entry(q->queue.next, struct saa7134_buf, entry);
		q->curr = buf;
		buf->activate(dev, buf, next);
		core_dbg("buffer_next #2 prev=%p/next=%p\n",
			q->queue.prev, q->queue.next);
	} else {
		/* nothing to do -- just stop DMA */
		core_dbg("buffer_next %p\n", NULL);
		saa7134_set_dmabits(dev);
		del_timer(&q->timeout);
	}
}

void saa7134_buffer_timeout(struct timer_list *t)
{
	struct saa7134_dmaqueue *q = from_timer(q, t, timeout);
	struct saa7134_dev *dev = q->dev;
	unsigned long flags;

	spin_lock_irqsave(&dev->slock, flags);

	/* try to reset the hardware (SWRST) */
	saa_writeb(SAA7134_REGION_ENABLE, 0x00);
	saa_writeb(SAA7134_REGION_ENABLE, 0x80);
	saa_writeb(SAA7134_REGION_ENABLE, 0x00);

	/* flag current buffer as failed,
	   try to start over with the next one. */
	if (q->curr) {
		core_dbg("timeout on %p\n", q->curr);
		saa7134_buffer_finish(dev, q, VB2_BUF_STATE_ERROR);
	}
	saa7134_buffer_next(dev, q);
	spin_unlock_irqrestore(&dev->slock, flags);
}

void saa7134_stop_streaming(struct saa7134_dev *dev, struct saa7134_dmaqueue *q)
{
	unsigned long flags;
	struct list_head *pos, *n;
	struct saa7134_buf *tmp;

	spin_lock_irqsave(&dev->slock, flags);
	if (!list_empty(&q->queue)) {
		list_for_each_safe(pos, n, &q->queue) {
			 tmp = list_entry(pos, struct saa7134_buf, entry);
			 vb2_buffer_done(&tmp->vb2.vb2_buf,
					 VB2_BUF_STATE_ERROR);
			 list_del(pos);
			 tmp = NULL;
		}
	}
	spin_unlock_irqrestore(&dev->slock, flags);
	saa7134_buffer_timeout(&q->timeout); /* also calls del_timer(&q->timeout) */
}
EXPORT_SYMBOL_GPL(saa7134_stop_streaming);

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

int saa7134_set_dmabits(struct saa7134_dev *dev)
{
	u32 split, task=0, ctrl=0, irq=0;
	enum v4l2_field cap = V4L2_FIELD_ANY;
	enum v4l2_field ov  = V4L2_FIELD_ANY;

	assert_spin_locked(&dev->slock);

	if (dev->insuspend)
		return 0;

	/* video capture -- dma 0 + video task A */
	if (dev->video_q.curr) {
		task |= 0x01;
		ctrl |= SAA7134_MAIN_CTRL_TE0;
		irq  |= SAA7134_IRQ1_INTE_RA0_1 |
			SAA7134_IRQ1_INTE_RA0_0;
		cap = dev->field;
	}

	/* video capture -- dma 1+2 (planar modes) */
	if (dev->video_q.curr && dev->fmt->planar) {
		ctrl |= SAA7134_MAIN_CTRL_TE4 |
			SAA7134_MAIN_CTRL_TE5;
	}

	/* screen overlay -- dma 0 + video task B */
	if (dev->ovenable) {
		task |= 0x10;
		ctrl |= SAA7134_MAIN_CTRL_TE1;
		ov = dev->ovfield;
	}

	/* vbi capture -- dma 0 + vbi task A+B */
	if (dev->vbi_q.curr) {
		task |= 0x22;
		ctrl |= SAA7134_MAIN_CTRL_TE2 |
			SAA7134_MAIN_CTRL_TE3;
		irq  |= SAA7134_IRQ1_INTE_RA0_7 |
			SAA7134_IRQ1_INTE_RA0_6 |
			SAA7134_IRQ1_INTE_RA0_5 |
			SAA7134_IRQ1_INTE_RA0_4;
	}

	/* audio capture -- dma 3 */
	if (dev->dmasound.dma_running) {
		ctrl |= SAA7134_MAIN_CTRL_TE6;
		irq  |= SAA7134_IRQ1_INTE_RA3_1 |
			SAA7134_IRQ1_INTE_RA3_0;
	}

	/* TS capture -- dma 5 */
	if (dev->ts_q.curr) {
		ctrl |= SAA7134_MAIN_CTRL_TE5;
		irq  |= SAA7134_IRQ1_INTE_RA2_1 |
			SAA7134_IRQ1_INTE_RA2_0;
	}

	/* set task conditions + field handling */
	if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
		/* default config -- use full frames */
		saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
		saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
		saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
		saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
		split = 0;
	} else {
		/* split fields between tasks */
		if (V4L2_FIELD_TOP == cap) {
			/* odd A, even B, repeat */
			saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
			saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
		} else {
			/* odd B, even A, repeat */
			saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
			saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
		}
		saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
		saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
		split = 1;
	}

	/* irqs */
	saa_writeb(SAA7134_REGION_ENABLE, task);
	saa_writel(SAA7134_IRQ1,          irq);
	saa_andorl(SAA7134_MAIN_CTRL,
		   SAA7134_MAIN_CTRL_TE0 |
		   SAA7134_MAIN_CTRL_TE1 |
		   SAA7134_MAIN_CTRL_TE2 |
		   SAA7134_MAIN_CTRL_TE3 |
		   SAA7134_MAIN_CTRL_TE4 |
		   SAA7134_MAIN_CTRL_TE5 |
		   SAA7134_MAIN_CTRL_TE6,
		   ctrl);
	core_dbg("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
		task, ctrl, irq, split ? "no" : "yes");

	return 0;
}

/* ------------------------------------------------------------------ */
/* IRQ handler + helpers                                              */

static char *irqbits[] = {
	"DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
	"AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
	"TRIG_ERR", "CONF_ERR", "LOAD_ERR",
	"GPIO16", "GPIO18", "GPIO22", "GPIO23"
};
#define IRQBITS ARRAY_SIZE(irqbits)

static void print_irqstatus(struct saa7134_dev *dev, int loop,
			    unsigned long report, unsigned long status)
{
	unsigned int i;

	irq_dbg(1, "[%d,%ld]: r=0x%lx s=0x%02lx",
		loop, jiffies, report, status);
	for (i = 0; i < IRQBITS; i++) {
		if (!(report & (1 << i)))
			continue;
		pr_cont(" %s", irqbits[i]);
	}
	if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
		pr_cont(" | RA0=%s,%s,%s,%ld",
			(status & 0x40) ? "vbi"  : "video",
			(status & 0x20) ? "b"    : "a",
			(status & 0x10) ? "odd"  : "even",
			(status & 0x0f));
	}
	pr_cont("\n");
}

static irqreturn_t saa7134_irq(int irq, void *dev_id)
{
	struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
	unsigned long report,status;
	int loop, handled = 0;

	if (dev->insuspend)
		goto out;

	for (loop = 0; loop < 10; loop++) {
		report = saa_readl(SAA7134_IRQ_REPORT);
		status = saa_readl(SAA7134_IRQ_STATUS);

		/* If dmasound support is active and we get a sound report,
		 * mask out the report and let the saa7134-alsa module deal
		 * with it */
		if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
			(dev->dmasound.priv_data != NULL) )
		{
			irq_dbg(2, "preserving DMA sound interrupt\n");
			report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
		}

		if (0 == report) {
			irq_dbg(2, "no (more) work\n");
			goto out;
		}

		handled = 1;
		saa_writel(SAA7134_IRQ_REPORT,report);
		if (irq_debug)
			print_irqstatus(dev,loop,report,status);


		if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
			(report & SAA7134_IRQ_REPORT_INTL))
				saa7134_irq_video_signalchange(dev);


		if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
		    (status & 0x60) == 0)
			saa7134_irq_video_done(dev,status);

		if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
		    (status & 0x40) == 0x40)
			saa7134_irq_vbi_done(dev,status);

		if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
		    card_has_mpeg(dev)) {
			if (dev->mops->irq_ts_done != NULL)
				dev->mops->irq_ts_done(dev, status);
			else
				saa7134_irq_ts_done(dev, status);
		}

		if (report & SAA7134_IRQ_REPORT_GPIO16) {
			switch (dev->has_remote) {
				case SAA7134_REMOTE_GPIO:
					if (!dev->remote)
						break;
					if  (dev->remote->mask_keydown & 0x10000) {
						saa7134_input_irq(dev);
					}
					break;

				case SAA7134_REMOTE_I2C:
					break;			/* FIXME: invoke I2C get_key() */

				default:			/* GPIO16 not used by IR remote */
					break;
			}
		}

		if (report & SAA7134_IRQ_REPORT_GPIO18) {
			switch (dev->has_remote) {
				case SAA7134_REMOTE_GPIO:
					if (!dev->remote)
						break;
					if ((dev->remote->mask_keydown & 0x40000) ||
					    (dev->remote->mask_keyup & 0x40000)) {
						saa7134_input_irq(dev);
					}
					break;

				case SAA7134_REMOTE_I2C:
					break;			/* FIXME: invoke I2C get_key() */

				default:			/* GPIO18 not used by IR remote */
					break;
			}
		}
	}

	if (10 == loop) {
		print_irqstatus(dev,loop,report,status);
		if (report & SAA7134_IRQ_REPORT_PE) {
			/* disable all parity error */
			pr_warn("%s/irq: looping -- clearing PE (parity error!) enable bit\n",
				dev->name);
			saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
		} else if (report & SAA7134_IRQ_REPORT_GPIO16) {
			/* disable gpio16 IRQ */
			pr_warn("%s/irq: looping -- clearing GPIO16 enable bit\n",
				dev->name);
			saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_P);
			saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N);
		} else if (report & SAA7134_IRQ_REPORT_GPIO18) {
			/* disable gpio18 IRQs */
			pr_warn("%s/irq: looping -- clearing GPIO18 enable bit\n",
				dev->name);
			saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
			saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N);
		} else {
			/* disable all irqs */
			pr_warn("%s/irq: looping -- clearing all enable bits\n",
				dev->name);
			saa_writel(SAA7134_IRQ1,0);
			saa_writel(SAA7134_IRQ2,0);
		}
	}

 out:
	return IRQ_RETVAL(handled);
}

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

/* early init (no i2c, no irq) */

static int saa7134_hw_enable1(struct saa7134_dev *dev)
{
	/* RAM FIFO config */
	saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
	saa_writel(SAA7134_THRESHOULD, 0x02020202);

	/* enable audio + video processing */
	saa_writel(SAA7134_MAIN_CTRL,
			SAA7134_MAIN_CTRL_VPLLE |
			SAA7134_MAIN_CTRL_APLLE |
			SAA7134_MAIN_CTRL_EXOSC |
			SAA7134_MAIN_CTRL_EVFE1 |
			SAA7134_MAIN_CTRL_EVFE2 |
			SAA7134_MAIN_CTRL_ESFE  |
			SAA7134_MAIN_CTRL_EBDAC);

	/*
	* Initialize OSS _after_ enabling audio clock PLL and audio processing.
	* OSS initialization writes to registers via the audio DSP; these
	* writes will fail unless the audio clock has been started.  At worst,
	* audio will not work.
	*/

	/* enable peripheral devices */
	saa_writeb(SAA7134_SPECIAL_MODE, 0x01);

	/* set vertical line numbering start (vbi needs this) */
	saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);

	return 0;
}

static int saa7134_hwinit1(struct saa7134_dev *dev)
{
	core_dbg("hwinit1\n");

	saa_writel(SAA7134_IRQ1, 0);
	saa_writel(SAA7134_IRQ2, 0);

	/* Clear any stale IRQ reports */
	saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));

	mutex_init(&dev->lock);
	spin_lock_init(&dev->slock);

	saa7134_track_gpio(dev,"pre-init");
	saa7134_video_init1(dev);
	saa7134_vbi_init1(dev);
	if (card_has_mpeg(dev))
		saa7134_ts_init1(dev);
	saa7134_input_init1(dev);

	saa7134_hw_enable1(dev);

	return 0;
}

/* late init (with i2c + irq) */
static int saa7134_hw_enable2(struct saa7134_dev *dev)
{

	unsigned int irq2_mask;

	/* enable IRQ's */
	irq2_mask =
		SAA7134_IRQ2_INTE_DEC3    |
		SAA7134_IRQ2_INTE_DEC2    |
		SAA7134_IRQ2_INTE_DEC1    |
		SAA7134_IRQ2_INTE_DEC0    |
		SAA7134_IRQ2_INTE_PE      |
		SAA7134_IRQ2_INTE_AR;

	if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
		if (dev->remote->mask_keydown & 0x10000)
			irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
		else {		/* Allow enabling both IRQ edge triggers */
			if (dev->remote->mask_keydown & 0x40000)
				irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
			if (dev->remote->mask_keyup & 0x40000)
				irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
		}
	}

	if (dev->has_remote == SAA7134_REMOTE_I2C) {
		request_module("ir-kbd-i2c");
	}

	saa_writel(SAA7134_IRQ1, 0);
	saa_writel(SAA7134_IRQ2, irq2_mask);

	return 0;
}

static int saa7134_hwinit2(struct saa7134_dev *dev)
{

	core_dbg("hwinit2\n");

	saa7134_video_init2(dev);
	saa7134_tvaudio_init2(dev);

	saa7134_hw_enable2(dev);

	return 0;
}


/* shutdown */
static int saa7134_hwfini(struct saa7134_dev *dev)
{
	core_dbg("hwfini\n");

	if (card_has_mpeg(dev))
		saa7134_ts_fini(dev);
	saa7134_input_fini(dev);
	saa7134_vbi_fini(dev);
	saa7134_tvaudio_fini(dev);
	saa7134_video_fini(dev);
	return 0;
}

static void must_configure_manually(int has_eeprom)
{
	unsigned int i,p;

	if (!has_eeprom)
		pr_warn("saa7134: <rant>\n"
			"saa7134:  Congratulations!  Your TV card vendor saved a few\n"
			"saa7134:  cents for a eeprom, thus your pci board has no\n"
			"saa7134:  subsystem ID and I can't identify it automatically\n"
			"saa7134: </rant>\n"
			"saa7134: I feel better now.  Ok, here are the good news:\n"
			"saa7134: You can use the card=<nr> insmod option to specify\n"
			"saa7134: which board do you have.  The list:\n");
	else
		pr_warn("saa7134: Board is currently unknown. You might try to use the card=<nr>\n"
			"saa7134: insmod option to specify which board do you have, but this is\n"
			"saa7134: somewhat risky, as might damage your card. It is better to ask\n"
			"saa7134: for support at linux-media@vger.kernel.org.\n"
			"saa7134: The supported cards are:\n");

	for (i = 0; i < saa7134_bcount; i++) {
		pr_warn("saa7134:   card=%d -> %-40.40s",
		       i,saa7134_boards[i].name);
		for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
			if (saa7134_pci_tbl[p].driver_data != i)
				continue;
			pr_cont(" %04x:%04x",
			       saa7134_pci_tbl[p].subvendor,
			       saa7134_pci_tbl[p].subdevice);
		}
		pr_cont("\n");
	}
}

static void saa7134_unregister_media_device(struct saa7134_dev *dev)
{

#ifdef CONFIG_MEDIA_CONTROLLER
	if (!dev->media_dev)
		return;
	media_device_unregister(dev->media_dev);
	media_device_cleanup(dev->media_dev);
	kfree(dev->media_dev);
	dev->media_dev = NULL;
#endif
}

static void saa7134_media_release(struct saa7134_dev *dev)
{
#ifdef CONFIG_MEDIA_CONTROLLER
	int i;

	for (i = 0; i < SAA7134_INPUT_MAX + 1; i++)
		media_device_unregister_entity(&dev->input_ent[i]);
#endif
}

#if defined(CONFIG_MEDIA_CONTROLLER)
static void saa7134_create_entities(struct saa7134_dev *dev)
{
	int ret, i;
	struct media_entity *entity;
	struct media_entity *decoder = NULL;

	/* Check if it is using an external analog TV demod */
	media_device_for_each_entity(entity, dev->media_dev) {
		if (entity->function == MEDIA_ENT_F_ATV_DECODER) {
			decoder = entity;
			break;
		}
	}

	/*
	 * saa713x is not using an external ATV demod.
	 * Register the internal one
	 */
	if (!decoder) {
		dev->demod.name = "saa713x";
		dev->demod_pad[SAA7134_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
		dev->demod_pad[SAA7134_PAD_IF_INPUT].sig_type = PAD_SIGNAL_ANALOG;
		dev->demod_pad[SAA7134_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
		dev->demod_pad[SAA7134_PAD_VID_OUT].sig_type = PAD_SIGNAL_DV;
		dev->demod.function = MEDIA_ENT_F_ATV_DECODER;

		ret = media_entity_pads_init(&dev->demod, SAA7134_NUM_PADS,
					     dev->demod_pad);
		if (ret < 0)
			pr_err("failed to initialize demod pad!\n");

		ret = media_device_register_entity(dev->media_dev, &dev->demod);
		if (ret < 0)
			pr_err("failed to register demod entity!\n");

		dev->decoder = &dev->demod;
	} else {
		dev->decoder = decoder;
	}

	/* Initialize Video, VBI and Radio pads */
	dev->video_pad.flags = MEDIA_PAD_FL_SINK;
	ret = media_entity_pads_init(&dev->video_dev->entity, 1,
				     &dev->video_pad);
	if (ret < 0)
		pr_err("failed to initialize video media entity!\n");

	dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
	ret = media_entity_pads_init(&dev->vbi_dev->entity, 1,
					&dev->vbi_pad);
	if (ret < 0)
		pr_err("failed to initialize vbi media entity!\n");

	/* Create entities for each input connector */
	for (i = 0; i < SAA7134_INPUT_MAX; i++) {
		struct media_entity *ent = &dev->input_ent[i];
		struct saa7134_input *in = &card_in(dev, i);

		if (in->type == SAA7134_NO_INPUT)
			break;

		/* This input uses the S-Video connector */
		if (in->type == SAA7134_INPUT_COMPOSITE_OVER_SVIDEO)
			continue;

		ent->name = saa7134_input_name[in->type];
		ent->flags = MEDIA_ENT_FL_CONNECTOR;
		dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;

		switch (in->type) {
		case SAA7134_INPUT_COMPOSITE:
		case SAA7134_INPUT_COMPOSITE0:
		case SAA7134_INPUT_COMPOSITE1:
		case SAA7134_INPUT_COMPOSITE2:
		case SAA7134_INPUT_COMPOSITE3:
		case SAA7134_INPUT_COMPOSITE4:
			ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
			break;
		case SAA7134_INPUT_SVIDEO:
		case SAA7134_INPUT_SVIDEO0:
		case SAA7134_INPUT_SVIDEO1:
			ent->function = MEDIA_ENT_F_CONN_SVIDEO;
			break;
		default:
			/*
			 * SAA7134_INPUT_TV and SAA7134_INPUT_TV_MONO.
			 *
			 * Please notice that neither SAA7134_INPUT_MUTE or
			 * SAA7134_INPUT_RADIO are defined at
			 * saa7134_board.input.
			 */
			ent->function = MEDIA_ENT_F_CONN_RF;
			break;
		}

		ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
		if (ret < 0)
			pr_err("failed to initialize input pad[%d]!\n", i);

		ret = media_device_register_entity(dev->media_dev, ent);
		if (ret < 0)
			pr_err("failed to register input entity %d!\n", i);
	}

	/* Create input for Radio RF connector */
	if (card_has_radio(dev)) {
		struct saa7134_input *in = &saa7134_boards[dev->board].radio;
		struct media_entity *ent = &dev->input_ent[i];

		ent->name = saa7134_input_name[in->type];
		ent->flags = MEDIA_ENT_FL_CONNECTOR;
		dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
		ent->function = MEDIA_ENT_F_CONN_RF;

		ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
		if (ret < 0)
			pr_err("failed to initialize input pad[%d]!\n", i);

		ret = media_device_register_entity(dev->media_dev, ent);
		if (ret < 0)
			pr_err("failed to register input entity %d!\n", i);
	}
}
#endif

static struct video_device *vdev_init(struct saa7134_dev *dev,
				      struct video_device *template,
				      char *type)
{
	struct video_device *vfd;

	vfd = video_device_alloc();
	if (NULL == vfd)
		return NULL;
	*vfd = *template;
	vfd->v4l2_dev  = &dev->v4l2_dev;
	vfd->release = video_device_release;
	snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
		 dev->name, type, saa7134_boards[dev->board].name);
	video_set_drvdata(vfd, dev);
	return vfd;
}

static void saa7134_unregister_video(struct saa7134_dev *dev)
{
	saa7134_media_release(dev);

	if (dev->video_dev) {
		if (video_is_registered(dev->video_dev))
			video_unregister_device(dev->video_dev);
		else
			video_device_release(dev->video_dev);
		dev->video_dev = NULL;
	}
	if (dev->vbi_dev) {
		if (video_is_registered(dev->vbi_dev))
			video_unregister_device(dev->vbi_dev);
		else
			video_device_release(dev->vbi_dev);
		dev->vbi_dev = NULL;
	}
	if (dev->radio_dev) {
		if (video_is_registered(dev->radio_dev))
			video_unregister_device(dev->radio_dev);
		else
			video_device_release(dev->radio_dev);
		dev->radio_dev = NULL;
	}
}

static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
			    struct saa7134_dev *dev)
{
	int err;

	if (NULL != dev->mops)
		return;
	if (saa7134_boards[dev->board].mpeg != ops->type)
		return;
	err = ops->init(dev);
	if (0 != err)
		return;
	dev->mops = ops;
}

static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
			    struct saa7134_dev *dev)
{
	if (NULL == dev->mops)
		return;
	if (dev->mops != ops)
		return;
	dev->mops->fini(dev);
	dev->mops = NULL;
}

static int saa7134_initdev(struct pci_dev *pci_dev,
			   const struct pci_device_id *pci_id)
{
	struct saa7134_dev *dev;
	struct saa7134_mpeg_ops *mops;
	int err;

	if (saa7134_devcount == SAA7134_MAXBOARDS)
		return -ENOMEM;

	dev = kzalloc(sizeof(*dev),GFP_KERNEL);
	if (NULL == dev)
		return -ENOMEM;

	dev->nr = saa7134_devcount;
	sprintf(dev->name, "saa%x[%d]", pci_dev->device, dev->nr);

#ifdef CONFIG_MEDIA_CONTROLLER
	dev->media_dev = kzalloc(sizeof(*dev->media_dev), GFP_KERNEL);
	if (!dev->media_dev) {
		err = -ENOMEM;
		goto fail0;
	}
	media_device_pci_init(dev->media_dev, pci_dev, dev->name);
	dev->v4l2_dev.mdev = dev->media_dev;
#endif

	err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
	if (err)
		goto fail0;

	/* pci init */
	dev->pci = pci_dev;
	if (pci_enable_device(pci_dev)) {
		err = -EIO;
		goto fail1;
	}

	/* pci quirks */
	if (pci_pci_problems) {
		if (pci_pci_problems & PCIPCI_TRITON)
			pr_info("%s: quirk: PCIPCI_TRITON\n", dev->name);
		if (pci_pci_problems & PCIPCI_NATOMA)
			pr_info("%s: quirk: PCIPCI_NATOMA\n", dev->name);
		if (pci_pci_problems & PCIPCI_VIAETBF)
			pr_info("%s: quirk: PCIPCI_VIAETBF\n", dev->name);
		if (pci_pci_problems & PCIPCI_VSFX)
			pr_info("%s: quirk: PCIPCI_VSFX\n", dev->name);
#ifdef PCIPCI_ALIMAGIK
		if (pci_pci_problems & PCIPCI_ALIMAGIK) {
			pr_info("%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
			       dev->name);
			latency = 0x0A;
		}
#endif
		if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
			pr_info("%s: quirk: this driver and your chipset may not work together in overlay mode.\n",
				dev->name);
			if (!saa7134_no_overlay) {
				pr_info("%s: quirk: overlay mode will be disabled.\n",
						dev->name);
				saa7134_no_overlay = 1;
			} else {
				pr_info("%s: quirk: overlay mode will be forced. Use this option at your own risk.\n",
						dev->name);
			}
		}
	}
	if (UNSET != latency) {
		pr_info("%s: setting pci latency timer to %d\n",
		       dev->name,latency);
		pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
	}

	/* print pci info */
	dev->pci_rev = pci_dev->revision;
	pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
	pr_info("%s: found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n",
		dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
		dev->pci_lat,
		(unsigned long long)pci_resource_start(pci_dev, 0));
	pci_set_master(pci_dev);
	err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
	if (err) {
		pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
		goto fail1;
	}

	/* board config */
	dev->board = pci_id->driver_data;
	if ((unsigned)card[dev->nr] < saa7134_bcount)
		dev->board = card[dev->nr];
	if (SAA7134_BOARD_UNKNOWN == dev->board)
		must_configure_manually(0);
	else if (SAA7134_BOARD_NOAUTO == dev->board) {
		must_configure_manually(1);
		dev->board = SAA7134_BOARD_UNKNOWN;
	}
	dev->autodetected = card[dev->nr] != dev->board;
	dev->tuner_type = saa7134_boards[dev->board].tuner_type;
	dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
	dev->radio_type = saa7134_boards[dev->board].radio_type;
	dev->radio_addr = saa7134_boards[dev->board].radio_addr;
	dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
	if (UNSET != tuner[dev->nr])
		dev->tuner_type = tuner[dev->nr];
	pr_info("%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
		dev->name,pci_dev->subsystem_vendor,
		pci_dev->subsystem_device,saa7134_boards[dev->board].name,
		dev->board, dev->autodetected ?
		"autodetected" : "insmod option");

	/* get mmio */
	if (!request_mem_region(pci_resource_start(pci_dev,0),
				pci_resource_len(pci_dev,0),
				dev->name)) {
		err = -EBUSY;
		pr_err("%s: can't get MMIO memory @ 0x%llx\n",
		       dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
		goto fail1;
	}
	dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
			     pci_resource_len(pci_dev, 0));
	dev->bmmio = (__u8 __iomem *)dev->lmmio;
	if (NULL == dev->lmmio) {
		err = -EIO;
		pr_err("%s: can't ioremap() MMIO memory\n",
		       dev->name);
		goto fail2;
	}

	/* initialize hardware #1 */
	saa7134_board_init1(dev);
	saa7134_hwinit1(dev);

	/* get irq */
	err = request_irq(pci_dev->irq, saa7134_irq,
			  IRQF_SHARED, dev->name, dev);
	if (err < 0) {
		pr_err("%s: can't get IRQ %d\n",
		       dev->name,pci_dev->irq);
		goto fail3;
	}

	/* wait a bit, register i2c bus */
	msleep(100);
	saa7134_i2c_register(dev);
	saa7134_board_init2(dev);

	saa7134_hwinit2(dev);

	/* load i2c helpers */
	if (card_is_empress(dev)) {
		dev->empress_sd =
			v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
				"saa6752hs",
				saa7134_boards[dev->board].empress_addr, NULL);

		if (dev->empress_sd)
			dev->empress_sd->grp_id = GRP_EMPRESS;
	}

	if (saa7134_boards[dev->board].rds_addr) {
		struct v4l2_subdev *sd;

		sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
				&dev->i2c_adap, "saa6588",
				0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
		if (sd) {
			pr_info("%s: found RDS decoder\n", dev->name);
			dev->has_rds = 1;
		}
	}

	mutex_lock(&saa7134_devlist_lock);
	list_for_each_entry(mops, &mops_list, next)
		mpeg_ops_attach(mops, dev);
	list_add_tail(&dev->devlist, &saa7134_devlist);
	mutex_unlock(&saa7134_devlist_lock);

	/* check for signal */
	saa7134_irq_video_signalchange(dev);

	if (TUNER_ABSENT != dev->tuner_type)
		saa_call_all(dev, core, s_power, 0);

	/* register v4l devices */
	if (saa7134_no_overlay > 0)
		pr_info("%s: Overlay support disabled.\n", dev->name);

	dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
	dev->video_dev->ctrl_handler = &dev->ctrl_handler;
	dev->video_dev->lock = &dev->lock;
	dev->video_dev->queue = &dev->video_vbq;
	dev->video_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
				      V4L2_CAP_VIDEO_CAPTURE;
	if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
		dev->video_dev->device_caps |= V4L2_CAP_TUNER;

	if (saa7134_no_overlay <= 0)
		dev->video_dev->device_caps |= V4L2_CAP_VIDEO_OVERLAY;

	err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
				    video_nr[dev->nr]);
	if (err < 0) {
		pr_info("%s: can't register video device\n",
		       dev->name);
		goto fail4;
	}
	pr_info("%s: registered device %s [v4l2]\n",
	       dev->name, video_device_node_name(dev->video_dev));

	dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
	dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
	dev->vbi_dev->lock = &dev->lock;
	dev->vbi_dev->queue = &dev->vbi_vbq;
	dev->vbi_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
				    V4L2_CAP_VBI_CAPTURE;
	if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
		dev->vbi_dev->device_caps |= V4L2_CAP_TUNER;

	err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
				    vbi_nr[dev->nr]);
	if (err < 0)
		goto fail4;
	pr_info("%s: registered device %s\n",
	       dev->name, video_device_node_name(dev->vbi_dev));

	if (card_has_radio(dev)) {
		dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
		dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
		dev->radio_dev->lock = &dev->lock;
		dev->radio_dev->device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
		if (dev->has_rds)
			dev->radio_dev->device_caps |= V4L2_CAP_RDS_CAPTURE;
		err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
					    radio_nr[dev->nr]);
		if (err < 0)
			goto fail4;
		pr_info("%s: registered device %s\n",
		       dev->name, video_device_node_name(dev->radio_dev));
	}

#ifdef CONFIG_MEDIA_CONTROLLER
	saa7134_create_entities(dev);

	err = v4l2_mc_create_media_graph(dev->media_dev);
	if (err) {
		pr_err("failed to create media graph\n");
		goto fail4;
	}
#endif
	/* everything worked */
	saa7134_devcount++;

	if (saa7134_dmasound_init && !dev->dmasound.priv_data)
		saa7134_dmasound_init(dev);

	request_submodules(dev);

	/*
	 * Do it at the end, to reduce dynamic configuration changes during
	 * the device init. Yet, as request_modules() can be async, the
	 * topology will likely change after load the saa7134 subdrivers.
	 */
#ifdef CONFIG_MEDIA_CONTROLLER
	err = media_device_register(dev->media_dev);
	if (err)
		goto fail4;
#endif

	return 0;

 fail4:
	saa7134_unregister_video(dev);
	saa7134_i2c_unregister(dev);
	free_irq(pci_dev->irq, dev);
 fail3:
	saa7134_hwfini(dev);
	iounmap(dev->lmmio);
 fail2:
	release_mem_region(pci_resource_start(pci_dev,0),
			   pci_resource_len(pci_dev,0));
 fail1:
	v4l2_device_unregister(&dev->v4l2_dev);
 fail0:
#ifdef CONFIG_MEDIA_CONTROLLER
	kfree(dev->media_dev);
#endif
	kfree(dev);
	return err;
}

static void saa7134_finidev(struct pci_dev *pci_dev)
{
	struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
	struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
	struct saa7134_mpeg_ops *mops;

	flush_request_submodules(dev);

	/* Release DMA sound modules if present */
	if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
		saa7134_dmasound_exit(dev);
	}

	/* debugging ... */
	if (irq_debug) {
		u32 report = saa_readl(SAA7134_IRQ_REPORT);
		u32 status = saa_readl(SAA7134_IRQ_STATUS);
		print_irqstatus(dev,42,report,status);
	}

	/* disable peripheral devices */
	saa_writeb(SAA7134_SPECIAL_MODE,0);

	/* shutdown hardware */
	saa_writel(SAA7134_IRQ1,0);
	saa_writel(SAA7134_IRQ2,0);
	saa_writel(SAA7134_MAIN_CTRL,0);

	/* shutdown subsystems */
	saa7134_hwfini(dev);

	/* unregister */
	mutex_lock(&saa7134_devlist_lock);
	list_del(&dev->devlist);
	list_for_each_entry(mops, &mops_list, next)
		mpeg_ops_detach(mops, dev);
	mutex_unlock(&saa7134_devlist_lock);
	saa7134_devcount--;

	saa7134_i2c_unregister(dev);
	saa7134_unregister_video(dev);


	/* the DMA sound modules should be unloaded before reaching
	   this, but just in case they are still present... */
	if (dev->dmasound.priv_data != NULL) {
		free_irq(pci_dev->irq, &dev->dmasound);
		dev->dmasound.priv_data = NULL;
	}


	/* release resources */
	free_irq(pci_dev->irq, dev);
	iounmap(dev->lmmio);
	release_mem_region(pci_resource_start(pci_dev,0),
			   pci_resource_len(pci_dev,0));

	v4l2_device_unregister(&dev->v4l2_dev);

	saa7134_unregister_media_device(dev);

	/* free memory */
	kfree(dev);
}

#ifdef CONFIG_PM

/* resends a current buffer in queue after resume */
static int saa7134_buffer_requeue(struct saa7134_dev *dev,
				  struct saa7134_dmaqueue *q)
{
	struct saa7134_buf *buf, *next;

	assert_spin_locked(&dev->slock);

	buf  = q->curr;
	next = buf;
	core_dbg("buffer_requeue\n");

	if (!buf)
		return 0;

	core_dbg("buffer_requeue : resending active buffer\n");

	if (!list_empty(&q->queue))
		next = list_entry(q->queue.next, struct saa7134_buf,
					  entry);
	buf->activate(dev, buf, next);

	return 0;
}

static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state)
{
	struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
	struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);

	/* disable overlay - apps should enable it explicitly on resume*/
	dev->ovenable = 0;

	/* Disable interrupts, DMA, and rest of the chip*/
	saa_writel(SAA7134_IRQ1, 0);
	saa_writel(SAA7134_IRQ2, 0);
	saa_writel(SAA7134_MAIN_CTRL, 0);

	dev->insuspend = 1;
	synchronize_irq(pci_dev->irq);

	/* ACK interrupts once more, just in case,
		since the IRQ handler won't ack them anymore*/

	saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));

	/* Disable timeout timers - if we have active buffers, we will
	   fill them on resume*/

	del_timer(&dev->video_q.timeout);
	del_timer(&dev->vbi_q.timeout);
	del_timer(&dev->ts_q.timeout);

	if (dev->remote && dev->remote->dev->users)
		saa7134_ir_close(dev->remote->dev);

	pci_save_state(pci_dev);
	pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));

	return 0;
}

static int saa7134_resume(struct pci_dev *pci_dev)
{
	struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
	struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
	unsigned long flags;

	pci_set_power_state(pci_dev, PCI_D0);
	pci_restore_state(pci_dev);

	/* Do things that are done in saa7134_initdev ,
		except of initializing memory structures.*/

	saa7134_board_init1(dev);

	/* saa7134_hwinit1 */
	if (saa7134_boards[dev->board].video_out)
		saa7134_videoport_init(dev);
	if (card_has_mpeg(dev))
		saa7134_ts_init_hw(dev);
	if (dev->remote && dev->remote->dev->users)
		saa7134_ir_open(dev->remote->dev);
	saa7134_hw_enable1(dev);

	msleep(100);

	saa7134_board_init2(dev);

	/*saa7134_hwinit2*/
	saa7134_set_tvnorm_hw(dev);
	saa7134_tvaudio_setmute(dev);
	saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
	saa7134_tvaudio_init(dev);
	saa7134_enable_i2s(dev);
	saa7134_hw_enable2(dev);

	saa7134_irq_video_signalchange(dev);

	/*resume unfinished buffer(s)*/
	spin_lock_irqsave(&dev->slock, flags);
	saa7134_buffer_requeue(dev, &dev->video_q);
	saa7134_buffer_requeue(dev, &dev->vbi_q);
	saa7134_buffer_requeue(dev, &dev->ts_q);

	/* FIXME: Disable DMA audio sound - temporary till proper support
		  is implemented*/

	dev->dmasound.dma_running = 0;

	/* start DMA now*/
	dev->insuspend = 0;
	smp_wmb();
	saa7134_set_dmabits(dev);
	spin_unlock_irqrestore(&dev->slock, flags);

	return 0;
}
#endif

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

int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
{
	struct saa7134_dev *dev;

	mutex_lock(&saa7134_devlist_lock);
	list_for_each_entry(dev, &saa7134_devlist, devlist)
		mpeg_ops_attach(ops, dev);
	list_add_tail(&ops->next,&mops_list);
	mutex_unlock(&saa7134_devlist_lock);
	return 0;
}

void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
{
	struct saa7134_dev *dev;

	mutex_lock(&saa7134_devlist_lock);
	list_del(&ops->next);
	list_for_each_entry(dev, &saa7134_devlist, devlist)
		mpeg_ops_detach(ops, dev);
	mutex_unlock(&saa7134_devlist_lock);
}

EXPORT_SYMBOL(saa7134_ts_register);
EXPORT_SYMBOL(saa7134_ts_unregister);

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

static struct pci_driver saa7134_pci_driver = {
	.name     = "saa7134",
	.id_table = saa7134_pci_tbl,
	.probe    = saa7134_initdev,
	.remove   = saa7134_finidev,
#ifdef CONFIG_PM
	.suspend  = saa7134_suspend,
	.resume   = saa7134_resume
#endif
};

static int __init saa7134_init(void)
{
	INIT_LIST_HEAD(&saa7134_devlist);
	pr_info("saa7130/34: v4l2 driver version %s loaded\n",
	       SAA7134_VERSION);
	return pci_register_driver(&saa7134_pci_driver);
}

static void __exit saa7134_fini(void)
{
	pci_unregister_driver(&saa7134_pci_driver);
}

module_init(saa7134_init);
module_exit(saa7134_fini);

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

EXPORT_SYMBOL(saa7134_set_gpio);
EXPORT_SYMBOL(saa7134_boards);

/* ----------------- for the DMA sound modules --------------- */

EXPORT_SYMBOL(saa7134_dmasound_init);
EXPORT_SYMBOL(saa7134_dmasound_exit);
EXPORT_SYMBOL(saa7134_pgtable_free);
EXPORT_SYMBOL(saa7134_pgtable_build);
EXPORT_SYMBOL(saa7134_pgtable_alloc);
EXPORT_SYMBOL(saa7134_set_dmabits);