summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/ath/wil6210/debugfs.c
blob: 5e4058a4037b414d1c5c2dc764f96960e6cd3c14 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
/*
 * Copyright (c) 2012-2016 Qualcomm Atheros, Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <linux/module.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/pci.h>
#include <linux/rtnetlink.h>
#include <linux/power_supply.h>

#include "wil6210.h"
#include "wmi.h"
#include "txrx.h"
#include "pmc.h"

/* Nasty hack. Better have per device instances */
static u32 mem_addr;
static u32 dbg_txdesc_index;
static u32 dbg_vring_index; /* 24+ for Rx, 0..23 for Tx */
u32 vring_idle_trsh = 16; /* HW fetches up to 16 descriptors at once */

enum dbg_off_type {
	doff_u32 = 0,
	doff_x32 = 1,
	doff_ulong = 2,
	doff_io32 = 3,
	doff_u8 = 4
};

/* offset to "wil" */
struct dbg_off {
	const char *name;
	umode_t mode;
	ulong off;
	enum dbg_off_type type;
};

static void wil_print_vring(struct seq_file *s, struct wil6210_priv *wil,
			    const char *name, struct vring *vring,
			    char _s, char _h)
{
	void __iomem *x = wmi_addr(wil, vring->hwtail);
	u32 v;

	seq_printf(s, "VRING %s = {\n", name);
	seq_printf(s, "  pa     = %pad\n", &vring->pa);
	seq_printf(s, "  va     = 0x%p\n", vring->va);
	seq_printf(s, "  size   = %d\n", vring->size);
	seq_printf(s, "  swtail = %d\n", vring->swtail);
	seq_printf(s, "  swhead = %d\n", vring->swhead);
	seq_printf(s, "  hwtail = [0x%08x] -> ", vring->hwtail);
	if (x) {
		v = readl(x);
		seq_printf(s, "0x%08x = %d\n", v, v);
	} else {
		seq_puts(s, "???\n");
	}

	if (vring->va && (vring->size <= (1 << WIL_RING_SIZE_ORDER_MAX))) {
		uint i;

		for (i = 0; i < vring->size; i++) {
			volatile struct vring_tx_desc *d = &vring->va[i].tx;

			if ((i % 128) == 0 && (i != 0))
				seq_puts(s, "\n");
			seq_printf(s, "%c", (d->dma.status & BIT(0)) ?
					_s : (vring->ctx[i].skb ? _h : 'h'));
		}
		seq_puts(s, "\n");
	}
	seq_puts(s, "}\n");
}

static int wil_vring_debugfs_show(struct seq_file *s, void *data)
{
	uint i;
	struct wil6210_priv *wil = s->private;

	wil_print_vring(s, wil, "rx", &wil->vring_rx, 'S', '_');

	for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) {
		struct vring *vring = &wil->vring_tx[i];
		struct vring_tx_data *txdata = &wil->vring_tx_data[i];

		if (vring->va) {
			int cid = wil->vring2cid_tid[i][0];
			int tid = wil->vring2cid_tid[i][1];
			u32 swhead = vring->swhead;
			u32 swtail = vring->swtail;
			int used = (vring->size + swhead - swtail)
				   % vring->size;
			int avail = vring->size - used - 1;
			char name[10];
			char sidle[10];
			/* performance monitoring */
			cycles_t now = get_cycles();
			uint64_t idle = txdata->idle * 100;
			uint64_t total = now - txdata->begin;

			if (total != 0) {
				do_div(idle, total);
				snprintf(sidle, sizeof(sidle), "%3d%%",
					 (int)idle);
			} else {
				snprintf(sidle, sizeof(sidle), "N/A");
			}
			txdata->begin = now;
			txdata->idle = 0ULL;

			snprintf(name, sizeof(name), "tx_%2d", i);

			if (cid < WIL6210_MAX_CID)
				seq_printf(s,
					   "\n%pM CID %d TID %d 1x%s BACK([%u] %u TU A%s) [%3d|%3d] idle %s\n",
					   wil->sta[cid].addr, cid, tid,
					   txdata->dot1x_open ? "+" : "-",
					   txdata->agg_wsize,
					   txdata->agg_timeout,
					   txdata->agg_amsdu ? "+" : "-",
					   used, avail, sidle);
			else
				seq_printf(s,
					   "\nBroadcast 1x%s [%3d|%3d] idle %s\n",
					   txdata->dot1x_open ? "+" : "-",
					   used, avail, sidle);

			wil_print_vring(s, wil, name, vring, '_', 'H');
		}
	}

	return 0;
}

static int wil_vring_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, wil_vring_debugfs_show, inode->i_private);
}

static const struct file_operations fops_vring = {
	.open		= wil_vring_seq_open,
	.release	= single_release,
	.read		= seq_read,
	.llseek		= seq_lseek,
};

static void wil_seq_hexdump(struct seq_file *s, void *p, int len,
			    const char *prefix)
{
	seq_hex_dump(s, prefix, DUMP_PREFIX_NONE, 16, 1, p, len, false);
}

static void wil_print_ring(struct seq_file *s, const char *prefix,
			   void __iomem *off)
{
	struct wil6210_priv *wil = s->private;
	struct wil6210_mbox_ring r;
	int rsize;
	uint i;

	wil_halp_vote(wil);

	wil_memcpy_fromio_32(&r, off, sizeof(r));
	wil_mbox_ring_le2cpus(&r);
	/*
	 * we just read memory block from NIC. This memory may be
	 * garbage. Check validity before using it.
	 */
	rsize = r.size / sizeof(struct wil6210_mbox_ring_desc);

	seq_printf(s, "ring %s = {\n", prefix);
	seq_printf(s, "  base = 0x%08x\n", r.base);
	seq_printf(s, "  size = 0x%04x bytes -> %d entries\n", r.size, rsize);
	seq_printf(s, "  tail = 0x%08x\n", r.tail);
	seq_printf(s, "  head = 0x%08x\n", r.head);
	seq_printf(s, "  entry size = %d\n", r.entry_size);

	if (r.size % sizeof(struct wil6210_mbox_ring_desc)) {
		seq_printf(s, "  ??? size is not multiple of %zd, garbage?\n",
			   sizeof(struct wil6210_mbox_ring_desc));
		goto out;
	}

	if (!wmi_addr(wil, r.base) ||
	    !wmi_addr(wil, r.tail) ||
	    !wmi_addr(wil, r.head)) {
		seq_puts(s, "  ??? pointers are garbage?\n");
		goto out;
	}

	for (i = 0; i < rsize; i++) {
		struct wil6210_mbox_ring_desc d;
		struct wil6210_mbox_hdr hdr;
		size_t delta = i * sizeof(d);
		void __iomem *x = wil->csr + HOSTADDR(r.base) + delta;

		wil_memcpy_fromio_32(&d, x, sizeof(d));

		seq_printf(s, "  [%2x] %s %s%s 0x%08x", i,
			   d.sync ? "F" : "E",
			   (r.tail - r.base == delta) ? "t" : " ",
			   (r.head - r.base == delta) ? "h" : " ",
			   le32_to_cpu(d.addr));
		if (0 == wmi_read_hdr(wil, d.addr, &hdr)) {
			u16 len = le16_to_cpu(hdr.len);

			seq_printf(s, " -> %04x %04x %04x %02x\n",
				   le16_to_cpu(hdr.seq), len,
				   le16_to_cpu(hdr.type), hdr.flags);
			if (len <= MAX_MBOXITEM_SIZE) {
				unsigned char databuf[MAX_MBOXITEM_SIZE];
				void __iomem *src = wmi_buffer(wil, d.addr) +
					sizeof(struct wil6210_mbox_hdr);
				/*
				 * No need to check @src for validity -
				 * we already validated @d.addr while
				 * reading header
				 */
				wil_memcpy_fromio_32(databuf, src, len);
				wil_seq_hexdump(s, databuf, len, "      : ");
			}
		} else {
			seq_puts(s, "\n");
		}
	}
 out:
	seq_puts(s, "}\n");
	wil_halp_unvote(wil);
}

static int wil_mbox_debugfs_show(struct seq_file *s, void *data)
{
	struct wil6210_priv *wil = s->private;

	wil_print_ring(s, "tx", wil->csr + HOST_MBOX +
		       offsetof(struct wil6210_mbox_ctl, tx));
	wil_print_ring(s, "rx", wil->csr + HOST_MBOX +
		       offsetof(struct wil6210_mbox_ctl, rx));

	return 0;
}

static int wil_mbox_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, wil_mbox_debugfs_show, inode->i_private);
}

static const struct file_operations fops_mbox = {
	.open		= wil_mbox_seq_open,
	.release	= single_release,
	.read		= seq_read,
	.llseek		= seq_lseek,
};

static int wil_debugfs_iomem_x32_set(void *data, u64 val)
{
	writel(val, (void __iomem *)data);
	wmb(); /* make sure write propagated to HW */

	return 0;
}

static int wil_debugfs_iomem_x32_get(void *data, u64 *val)
{
	*val = readl((void __iomem *)data);

	return 0;
}

DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get,
			wil_debugfs_iomem_x32_set, "0x%08llx\n");

static struct dentry *wil_debugfs_create_iomem_x32(const char *name,
						   umode_t mode,
						   struct dentry *parent,
						   void *value)
{
	return debugfs_create_file(name, mode, parent, value,
				   &fops_iomem_x32);
}

static int wil_debugfs_ulong_set(void *data, u64 val)
{
	*(ulong *)data = val;
	return 0;
}

static int wil_debugfs_ulong_get(void *data, u64 *val)
{
	*val = *(ulong *)data;
	return 0;
}

DEFINE_SIMPLE_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get,
			wil_debugfs_ulong_set, "0x%llx\n");

static struct dentry *wil_debugfs_create_ulong(const char *name, umode_t mode,
					       struct dentry *parent,
					       ulong *value)
{
	return debugfs_create_file(name, mode, parent, value, &wil_fops_ulong);
}

/**
 * wil6210_debugfs_init_offset - create set of debugfs files
 * @wil - driver's context, used for printing
 * @dbg - directory on the debugfs, where files will be created
 * @base - base address used in address calculation
 * @tbl - table with file descriptions. Should be terminated with empty element.
 *
 * Creates files accordingly to the @tbl.
 */
static void wil6210_debugfs_init_offset(struct wil6210_priv *wil,
					struct dentry *dbg, void *base,
					const struct dbg_off * const tbl)
{
	int i;

	for (i = 0; tbl[i].name; i++) {
		struct dentry *f;

		switch (tbl[i].type) {
		case doff_u32:
			f = debugfs_create_u32(tbl[i].name, tbl[i].mode, dbg,
					       base + tbl[i].off);
			break;
		case doff_x32:
			f = debugfs_create_x32(tbl[i].name, tbl[i].mode, dbg,
					       base + tbl[i].off);
			break;
		case doff_ulong:
			f = wil_debugfs_create_ulong(tbl[i].name, tbl[i].mode,
						     dbg, base + tbl[i].off);
			break;
		case doff_io32:
			f = wil_debugfs_create_iomem_x32(tbl[i].name,
							 tbl[i].mode, dbg,
							 base + tbl[i].off);
			break;
		case doff_u8:
			f = debugfs_create_u8(tbl[i].name, tbl[i].mode, dbg,
					      base + tbl[i].off);
			break;
		default:
			f = ERR_PTR(-EINVAL);
		}
		if (IS_ERR_OR_NULL(f))
			wil_err(wil, "Create file \"%s\": err %ld\n",
				tbl[i].name, PTR_ERR(f));
	}
}

static const struct dbg_off isr_off[] = {
	{"ICC", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICC), doff_io32},
	{"ICR", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICR), doff_io32},
	{"ICM", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICM), doff_io32},
	{"ICS",		  S_IWUSR, offsetof(struct RGF_ICR, ICS), doff_io32},
	{"IMV", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, IMV), doff_io32},
	{"IMS",		  S_IWUSR, offsetof(struct RGF_ICR, IMS), doff_io32},
	{"IMC",		  S_IWUSR, offsetof(struct RGF_ICR, IMC), doff_io32},
	{},
};

static int wil6210_debugfs_create_ISR(struct wil6210_priv *wil,
				      const char *name,
				      struct dentry *parent, u32 off)
{
	struct dentry *d = debugfs_create_dir(name, parent);

	if (IS_ERR_OR_NULL(d))
		return -ENODEV;

	wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr + off,
				    isr_off);

	return 0;
}

static const struct dbg_off pseudo_isr_off[] = {
	{"CAUSE",   S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE), doff_io32},
	{"MASK_SW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW), doff_io32},
	{"MASK_FW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW), doff_io32},
	{},
};

static int wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil,
					     struct dentry *parent)
{
	struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent);

	if (IS_ERR_OR_NULL(d))
		return -ENODEV;

	wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr,
				    pseudo_isr_off);

	return 0;
}

static const struct dbg_off lgc_itr_cnt_off[] = {
	{"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_TRSH), doff_io32},
	{"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_DATA), doff_io32},
	{"CTL",  S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_CRL), doff_io32},
	{},
};

static const struct dbg_off tx_itr_cnt_off[] = {
	{"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_TRSH),
	 doff_io32},
	{"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_DATA),
	 doff_io32},
	{"CTL",  S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_CTL),
	 doff_io32},
	{"IDL_TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_TRSH),
	 doff_io32},
	{"IDL_DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_DATA),
	 doff_io32},
	{"IDL_CTL",  S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_CTL),
	 doff_io32},
	{},
};

static const struct dbg_off rx_itr_cnt_off[] = {
	{"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_TRSH),
	 doff_io32},
	{"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_DATA),
	 doff_io32},
	{"CTL",  S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_CTL),
	 doff_io32},
	{"IDL_TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_TRSH),
	 doff_io32},
	{"IDL_DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_DATA),
	 doff_io32},
	{"IDL_CTL",  S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_CTL),
	 doff_io32},
	{},
};

static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil,
					  struct dentry *parent)
{
	struct dentry *d, *dtx, *drx;

	d = debugfs_create_dir("ITR_CNT", parent);
	if (IS_ERR_OR_NULL(d))
		return -ENODEV;

	dtx = debugfs_create_dir("TX", d);
	drx = debugfs_create_dir("RX", d);
	if (IS_ERR_OR_NULL(dtx) || IS_ERR_OR_NULL(drx))
		return -ENODEV;

	wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr,
				    lgc_itr_cnt_off);

	wil6210_debugfs_init_offset(wil, dtx, (void * __force)wil->csr,
				    tx_itr_cnt_off);

	wil6210_debugfs_init_offset(wil, drx, (void * __force)wil->csr,
				    rx_itr_cnt_off);
	return 0;
}

static int wil_memread_debugfs_show(struct seq_file *s, void *data)
{
	struct wil6210_priv *wil = s->private;
	void __iomem *a = wmi_buffer(wil, cpu_to_le32(mem_addr));

	if (a)
		seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, readl(a));
	else
		seq_printf(s, "[0x%08x] = INVALID\n", mem_addr);

	return 0;
}

static int wil_memread_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, wil_memread_debugfs_show, inode->i_private);
}

static const struct file_operations fops_memread = {
	.open		= wil_memread_seq_open,
	.release	= single_release,
	.read		= seq_read,
	.llseek		= seq_lseek,
};

static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf,
				    size_t count, loff_t *ppos)
{
	enum { max_count = 4096 };
	struct wil_blob_wrapper *wil_blob = file->private_data;
	loff_t pos = *ppos;
	size_t available = wil_blob->blob.size;
	void *buf;
	size_t ret;

	if (pos < 0)
		return -EINVAL;

	if (pos >= available || !count)
		return 0;

	if (count > available - pos)
		count = available - pos;
	if (count > max_count)
		count = max_count;

	buf = kmalloc(count, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;

	wil_memcpy_fromio_halp_vote(wil_blob->wil, buf,
				    (const volatile void __iomem *)
				    wil_blob->blob.data + pos, count);

	ret = copy_to_user(user_buf, buf, count);
	kfree(buf);
	if (ret == count)
		return -EFAULT;

	count -= ret;
	*ppos = pos + count;

	return count;
}

static const struct file_operations fops_ioblob = {
	.read =		wil_read_file_ioblob,
	.open =		simple_open,
	.llseek =	default_llseek,
};

static
struct dentry *wil_debugfs_create_ioblob(const char *name,
					 umode_t mode,
					 struct dentry *parent,
					 struct wil_blob_wrapper *wil_blob)
{
	return debugfs_create_file(name, mode, parent, wil_blob, &fops_ioblob);
}

/*---reset---*/
static ssize_t wil_write_file_reset(struct file *file, const char __user *buf,
				    size_t len, loff_t *ppos)
{
	struct wil6210_priv *wil = file->private_data;
	struct net_device *ndev = wil_to_ndev(wil);

	/**
	 * BUG:
	 * this code does NOT sync device state with the rest of system
	 * use with care, debug only!!!
	 */
	rtnl_lock();
	dev_close(ndev);
	ndev->flags &= ~IFF_UP;
	rtnl_unlock();
	wil_reset(wil, true);

	return len;
}

static const struct file_operations fops_reset = {
	.write = wil_write_file_reset,
	.open  = simple_open,
};

/*---write channel 1..4 to rxon for it, 0 to rxoff---*/
static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf,
				   size_t len, loff_t *ppos)
{
	struct wil6210_priv *wil = file->private_data;
	int rc;
	long channel;
	bool on;

	char *kbuf = memdup_user_nul(buf, len);

	if (IS_ERR(kbuf))
		return PTR_ERR(kbuf);
	rc = kstrtol(kbuf, 0, &channel);
	kfree(kbuf);
	if (rc)
		return rc;

	if ((channel < 0) || (channel > 4)) {
		wil_err(wil, "Invalid channel %ld\n", channel);
		return -EINVAL;
	}
	on = !!channel;

	if (on) {
		rc = wmi_set_channel(wil, (int)channel);
		if (rc)
			return rc;
	}

	rc = wmi_rxon(wil, on);
	if (rc)
		return rc;

	return len;
}

static const struct file_operations fops_rxon = {
	.write = wil_write_file_rxon,
	.open  = simple_open,
};

/* block ack control, write:
 * - "add <ringid> <agg_size> <timeout>" to trigger ADDBA
 * - "del_tx <ringid> <reason>" to trigger DELBA for Tx side
 * - "del_rx <CID> <TID> <reason>" to trigger DELBA for Rx side
 */
static ssize_t wil_write_back(struct file *file, const char __user *buf,
			      size_t len, loff_t *ppos)
{
	struct wil6210_priv *wil = file->private_data;
	int rc;
	char *kbuf = kmalloc(len + 1, GFP_KERNEL);
	char cmd[9];
	int p1, p2, p3;

	if (!kbuf)
		return -ENOMEM;

	rc = simple_write_to_buffer(kbuf, len, ppos, buf, len);
	if (rc != len) {
		kfree(kbuf);
		return rc >= 0 ? -EIO : rc;
	}

	kbuf[len] = '\0';
	rc = sscanf(kbuf, "%8s %d %d %d", cmd, &p1, &p2, &p3);
	kfree(kbuf);

	if (rc < 0)
		return rc;
	if (rc < 2)
		return -EINVAL;

	if (0 == strcmp(cmd, "add")) {
		if (rc < 3) {
			wil_err(wil, "BACK: add require at least 2 params\n");
			return -EINVAL;
		}
		if (rc < 4)
			p3 = 0;
		wmi_addba(wil, p1, p2, p3);
	} else if (0 == strcmp(cmd, "del_tx")) {
		if (rc < 3)
			p2 = WLAN_REASON_QSTA_LEAVE_QBSS;
		wmi_delba_tx(wil, p1, p2);
	} else if (0 == strcmp(cmd, "del_rx")) {
		if (rc < 3) {
			wil_err(wil,
				"BACK: del_rx require at least 2 params\n");
			return -EINVAL;
		}
		if (rc < 4)
			p3 = WLAN_REASON_QSTA_LEAVE_QBSS;
		wmi_delba_rx(wil, mk_cidxtid(p1, p2), p3);
	} else {
		wil_err(wil, "BACK: Unrecognized command \"%s\"\n", cmd);
		return -EINVAL;
	}

	return len;
}

static ssize_t wil_read_back(struct file *file, char __user *user_buf,
			     size_t count, loff_t *ppos)
{
	static const char text[] = "block ack control, write:\n"
	" - \"add <ringid> <agg_size> <timeout>\" to trigger ADDBA\n"
	"If missing, <timeout> defaults to 0\n"
	" - \"del_tx <ringid> <reason>\" to trigger DELBA for Tx side\n"
	" - \"del_rx <CID> <TID> <reason>\" to trigger DELBA for Rx side\n"
	"If missing, <reason> set to \"STA_LEAVING\" (36)\n";

	return simple_read_from_buffer(user_buf, count, ppos, text,
				       sizeof(text));
}

static const struct file_operations fops_back = {
	.read = wil_read_back,
	.write = wil_write_back,
	.open  = simple_open,
};

/* pmc control, write:
 * - "alloc <num descriptors> <descriptor_size>" to allocate PMC
 * - "free" to release memory allocated for PMC
 */
static ssize_t wil_write_pmccfg(struct file *file, const char __user *buf,
				size_t len, loff_t *ppos)
{
	struct wil6210_priv *wil = file->private_data;
	int rc;
	char *kbuf = kmalloc(len + 1, GFP_KERNEL);
	char cmd[9];
	int num_descs, desc_size;

	if (!kbuf)
		return -ENOMEM;

	rc = simple_write_to_buffer(kbuf, len, ppos, buf, len);
	if (rc != len) {
		kfree(kbuf);
		return rc >= 0 ? -EIO : rc;
	}

	kbuf[len] = '\0';
	rc = sscanf(kbuf, "%8s %d %d", cmd, &num_descs, &desc_size);
	kfree(kbuf);

	if (rc < 0)
		return rc;

	if (rc < 1) {
		wil_err(wil, "pmccfg: no params given\n");
		return -EINVAL;
	}

	if (0 == strcmp(cmd, "alloc")) {
		if (rc != 3) {
			wil_err(wil, "pmccfg: alloc requires 2 params\n");
			return -EINVAL;
		}
		wil_pmc_alloc(wil, num_descs, desc_size);
	} else if (0 == strcmp(cmd, "free")) {
		if (rc != 1) {
			wil_err(wil, "pmccfg: free does not have any params\n");
			return -EINVAL;
		}
		wil_pmc_free(wil, true);
	} else {
		wil_err(wil, "pmccfg: Unrecognized command \"%s\"\n", cmd);
		return -EINVAL;
	}

	return len;
}

static ssize_t wil_read_pmccfg(struct file *file, char __user *user_buf,
			       size_t count, loff_t *ppos)
{
	struct wil6210_priv *wil = file->private_data;
	char text[256];
	char help[] = "pmc control, write:\n"
	" - \"alloc <num descriptors> <descriptor_size>\" to allocate pmc\n"
	" - \"free\" to free memory allocated for pmc\n";

	sprintf(text, "Last command status: %d\n\n%s",
		wil_pmc_last_cmd_status(wil),
		help);

	return simple_read_from_buffer(user_buf, count, ppos, text,
				       strlen(text) + 1);
}

static const struct file_operations fops_pmccfg = {
	.read = wil_read_pmccfg,
	.write = wil_write_pmccfg,
	.open  = simple_open,
};

static const struct file_operations fops_pmcdata = {
	.open		= simple_open,
	.read		= wil_pmc_read,
	.llseek		= wil_pmc_llseek,
};

/*---tx_mgmt---*/
/* Write mgmt frame to this file to send it */
static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf,
				     size_t len, loff_t *ppos)
{
	struct wil6210_priv *wil = file->private_data;
	struct wiphy *wiphy = wil_to_wiphy(wil);
	struct wireless_dev *wdev = wil_to_wdev(wil);
	struct cfg80211_mgmt_tx_params params;
	int rc;
	void *frame = kmalloc(len, GFP_KERNEL);

	if (!frame)
		return -ENOMEM;

	if (copy_from_user(frame, buf, len)) {
		kfree(frame);
		return -EIO;
	}

	params.buf = frame;
	params.len = len;
	params.chan = wdev->preset_chandef.chan;

	rc = wil_cfg80211_mgmt_tx(wiphy, wdev, &params, NULL);

	kfree(frame);
	wil_info(wil, "%s() -> %d\n", __func__, rc);

	return len;
}

static const struct file_operations fops_txmgmt = {
	.write = wil_write_file_txmgmt,
	.open  = simple_open,
};

/* Write WMI command (w/o mbox header) to this file to send it
 * WMI starts from wil6210_mbox_hdr_wmi header
 */
static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf,
				  size_t len, loff_t *ppos)
{
	struct wil6210_priv *wil = file->private_data;
	struct wmi_cmd_hdr *wmi;
	void *cmd;
	int cmdlen = len - sizeof(struct wmi_cmd_hdr);
	u16 cmdid;
	int rc, rc1;

	if (cmdlen < 0)
		return -EINVAL;

	wmi = kmalloc(len, GFP_KERNEL);
	if (!wmi)
		return -ENOMEM;

	rc = simple_write_to_buffer(wmi, len, ppos, buf, len);
	if (rc < 0) {
		kfree(wmi);
		return rc;
	}

	cmd = (cmdlen > 0) ? &wmi[1] : NULL;
	cmdid = le16_to_cpu(wmi->command_id);

	rc1 = wmi_send(wil, cmdid, cmd, cmdlen);
	kfree(wmi);

	wil_info(wil, "%s(0x%04x[%d]) -> %d\n", __func__, cmdid, cmdlen, rc1);

	return rc;
}

static const struct file_operations fops_wmi = {
	.write = wil_write_file_wmi,
	.open  = simple_open,
};

static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb)
{
	int i = 0;
	int len = skb_headlen(skb);
	void *p = skb->data;
	int nr_frags = skb_shinfo(skb)->nr_frags;

	seq_printf(s, "    len = %d\n", len);
	wil_seq_hexdump(s, p, len, "      : ");

	if (nr_frags) {
		seq_printf(s, "    nr_frags = %d\n", nr_frags);
		for (i = 0; i < nr_frags; i++) {
			const struct skb_frag_struct *frag =
					&skb_shinfo(skb)->frags[i];

			len = skb_frag_size(frag);
			p = skb_frag_address_safe(frag);
			seq_printf(s, "    [%2d] : len = %d\n", i, len);
			wil_seq_hexdump(s, p, len, "      : ");
		}
	}
}

/*---------Tx/Rx descriptor------------*/
static int wil_txdesc_debugfs_show(struct seq_file *s, void *data)
{
	struct wil6210_priv *wil = s->private;
	struct vring *vring;
	bool tx = (dbg_vring_index < WIL6210_MAX_TX_RINGS);

	vring = tx ? &wil->vring_tx[dbg_vring_index] : &wil->vring_rx;

	if (!vring->va) {
		if (tx)
			seq_printf(s, "No Tx[%2d] VRING\n", dbg_vring_index);
		else
			seq_puts(s, "No Rx VRING\n");
		return 0;
	}

	if (dbg_txdesc_index < vring->size) {
		/* use struct vring_tx_desc for Rx as well,
		 * only field used, .dma.length, is the same
		 */
		volatile struct vring_tx_desc *d =
				&vring->va[dbg_txdesc_index].tx;
		volatile u32 *u = (volatile u32 *)d;
		struct sk_buff *skb = vring->ctx[dbg_txdesc_index].skb;

		if (tx)
			seq_printf(s, "Tx[%2d][%3d] = {\n", dbg_vring_index,
				   dbg_txdesc_index);
		else
			seq_printf(s, "Rx[%3d] = {\n", dbg_txdesc_index);
		seq_printf(s, "  MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n",
			   u[0], u[1], u[2], u[3]);
		seq_printf(s, "  DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n",
			   u[4], u[5], u[6], u[7]);
		seq_printf(s, "  SKB = 0x%p\n", skb);

		if (skb) {
			skb_get(skb);
			wil_seq_print_skb(s, skb);
			kfree_skb(skb);
		}
		seq_puts(s, "}\n");
	} else {
		if (tx)
			seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n",
				   dbg_vring_index, dbg_txdesc_index,
				   vring->size);
		else
			seq_printf(s, "RxDesc index (%d) >= size (%d)\n",
				   dbg_txdesc_index, vring->size);
	}

	return 0;
}

static int wil_txdesc_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, wil_txdesc_debugfs_show, inode->i_private);
}

static const struct file_operations fops_txdesc = {
	.open		= wil_txdesc_seq_open,
	.release	= single_release,
	.read		= seq_read,
	.llseek		= seq_lseek,
};

/*---------beamforming------------*/
static char *wil_bfstatus_str(u32 status)
{
	switch (status) {
	case 0:
		return "Failed";
	case 1:
		return "OK";
	case 2:
		return "Retrying";
	default:
		return "??";
	}
}

static bool is_all_zeros(void * const x_, size_t sz)
{
	/* if reply is all-0, ignore this CID */
	u32 *x = x_;
	int n;

	for (n = 0; n < sz / sizeof(*x); n++)
		if (x[n])
			return false;

	return true;
}

static int wil_bf_debugfs_show(struct seq_file *s, void *data)
{
	int rc;
	int i;
	struct wil6210_priv *wil = s->private;
	struct wmi_notify_req_cmd cmd = {
		.interval_usec = 0,
	};
	struct {
		struct wmi_cmd_hdr wmi;
		struct wmi_notify_req_done_event evt;
	} __packed reply;

	for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
		u32 status;

		cmd.cid = i;
		rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd),
			      WMI_NOTIFY_REQ_DONE_EVENTID, &reply,
			      sizeof(reply), 20);
		/* if reply is all-0, ignore this CID */
		if (rc || is_all_zeros(&reply.evt, sizeof(reply.evt)))
			continue;

		status = le32_to_cpu(reply.evt.status);
		seq_printf(s, "CID %d {\n"
			   "  TSF = 0x%016llx\n"
			   "  TxMCS = %2d TxTpt = %4d\n"
			   "  SQI = %4d\n"
			   "  Status = 0x%08x %s\n"
			   "  Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n"
			   "  Goodput(rx:tx) %4d:%4d\n"
			   "}\n",
			   i,
			   le64_to_cpu(reply.evt.tsf),
			   le16_to_cpu(reply.evt.bf_mcs),
			   le32_to_cpu(reply.evt.tx_tpt),
			   reply.evt.sqi,
			   status, wil_bfstatus_str(status),
			   le16_to_cpu(reply.evt.my_rx_sector),
			   le16_to_cpu(reply.evt.my_tx_sector),
			   le16_to_cpu(reply.evt.other_rx_sector),
			   le16_to_cpu(reply.evt.other_tx_sector),
			   le32_to_cpu(reply.evt.rx_goodput),
			   le32_to_cpu(reply.evt.tx_goodput));
	}
	return 0;
}

static int wil_bf_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, wil_bf_debugfs_show, inode->i_private);
}

static const struct file_operations fops_bf = {
	.open		= wil_bf_seq_open,
	.release	= single_release,
	.read		= seq_read,
	.llseek		= seq_lseek,
};

/*---------SSID------------*/
static ssize_t wil_read_file_ssid(struct file *file, char __user *user_buf,
				  size_t count, loff_t *ppos)
{
	struct wil6210_priv *wil = file->private_data;
	struct wireless_dev *wdev = wil_to_wdev(wil);

	return simple_read_from_buffer(user_buf, count, ppos,
				       wdev->ssid, wdev->ssid_len);
}

static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf,
				   size_t count, loff_t *ppos)
{
	struct wil6210_priv *wil = file->private_data;
	struct wireless_dev *wdev = wil_to_wdev(wil);
	struct net_device *ndev = wil_to_ndev(wil);

	if (*ppos != 0) {
		wil_err(wil, "Unable to set SSID substring from [%d]\n",
			(int)*ppos);
		return -EINVAL;
	}

	if (count > sizeof(wdev->ssid)) {
		wil_err(wil, "SSID too long, len = %d\n", (int)count);
		return -EINVAL;
	}
	if (netif_running(ndev)) {
		wil_err(wil, "Unable to change SSID on running interface\n");
		return -EINVAL;
	}

	wdev->ssid_len = count;
	return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos,
				      buf, count);
}

static const struct file_operations fops_ssid = {
	.read = wil_read_file_ssid,
	.write = wil_write_file_ssid,
	.open  = simple_open,
};

/*---------temp------------*/
static void print_temp(struct seq_file *s, const char *prefix, u32 t)
{
	switch (t) {
	case 0:
	case ~(u32)0:
		seq_printf(s, "%s N/A\n", prefix);
	break;
	default:
		seq_printf(s, "%s %d.%03d\n", prefix, t / 1000, t % 1000);
		break;
	}
}

static int wil_temp_debugfs_show(struct seq_file *s, void *data)
{
	struct wil6210_priv *wil = s->private;
	u32 t_m, t_r;
	int rc = wmi_get_temperature(wil, &t_m, &t_r);

	if (rc) {
		seq_puts(s, "Failed\n");
		return 0;
	}

	print_temp(s, "T_mac   =", t_m);
	print_temp(s, "T_radio =", t_r);

	return 0;
}

static int wil_temp_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, wil_temp_debugfs_show, inode->i_private);
}

static const struct file_operations fops_temp = {
	.open		= wil_temp_seq_open,
	.release	= single_release,
	.read		= seq_read,
	.llseek		= seq_lseek,
};

/*---------freq------------*/
static int wil_freq_debugfs_show(struct seq_file *s, void *data)
{
	struct wil6210_priv *wil = s->private;
	struct wireless_dev *wdev = wil_to_wdev(wil);
	u16 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0;

	seq_printf(s, "Freq = %d\n", freq);

	return 0;
}

static int wil_freq_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, wil_freq_debugfs_show, inode->i_private);
}

static const struct file_operations fops_freq = {
	.open		= wil_freq_seq_open,
	.release	= single_release,
	.read		= seq_read,
	.llseek		= seq_lseek,
};

/*---------link------------*/
static int wil_link_debugfs_show(struct seq_file *s, void *data)
{
	struct wil6210_priv *wil = s->private;
	struct station_info sinfo;
	int i, rc;

	for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
		struct wil_sta_info *p = &wil->sta[i];
		char *status = "unknown";

		switch (p->status) {
		case wil_sta_unused:
			status = "unused   ";
			break;
		case wil_sta_conn_pending:
			status = "pending  ";
			break;
		case wil_sta_connected:
			status = "connected";
			break;
		}
		seq_printf(s, "[%d] %pM %s\n", i, p->addr, status);

		if (p->status == wil_sta_connected) {
			rc = wil_cid_fill_sinfo(wil, i, &sinfo);
			if (rc)
				return rc;

			seq_printf(s, "  Tx_mcs = %d\n", sinfo.txrate.mcs);
			seq_printf(s, "  Rx_mcs = %d\n", sinfo.rxrate.mcs);
			seq_printf(s, "  SQ     = %d\n", sinfo.signal);
		}
	}

	return 0;
}

static int wil_link_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, wil_link_debugfs_show, inode->i_private);
}

static const struct file_operations fops_link = {
	.open		= wil_link_seq_open,
	.release	= single_release,
	.read		= seq_read,
	.llseek		= seq_lseek,
};

/*---------info------------*/
static int wil_info_debugfs_show(struct seq_file *s, void *data)
{
	struct wil6210_priv *wil = s->private;
	struct net_device *ndev = wil_to_ndev(wil);
	int is_ac = power_supply_is_system_supplied();
	int rx = atomic_xchg(&wil->isr_count_rx, 0);
	int tx = atomic_xchg(&wil->isr_count_tx, 0);
	static ulong rxf_old, txf_old;
	ulong rxf = ndev->stats.rx_packets;
	ulong txf = ndev->stats.tx_packets;
	unsigned int i;

	/* >0 : AC; 0 : battery; <0 : error */
	seq_printf(s, "AC powered : %d\n", is_ac);
	seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old);
	seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old);
	rxf_old = rxf;
	txf_old = txf;

#define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \
	" " __stringify(x) : ""

	for (i = 0; i < ndev->num_tx_queues; i++) {
		struct netdev_queue *txq = netdev_get_tx_queue(ndev, i);
		unsigned long state = txq->state;

		seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state,
			   CHECK_QSTATE(DRV_XOFF),
			   CHECK_QSTATE(STACK_XOFF),
			   CHECK_QSTATE(FROZEN)
			  );
	}
#undef CHECK_QSTATE
	return 0;
}

static int wil_info_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, wil_info_debugfs_show, inode->i_private);
}

static const struct file_operations fops_info = {
	.open		= wil_info_seq_open,
	.release	= single_release,
	.read		= seq_read,
	.llseek		= seq_lseek,
};

/*---------recovery------------*/
/* mode = [manual|auto]
 * state = [idle|pending|running]
 */
static ssize_t wil_read_file_recovery(struct file *file, char __user *user_buf,
				      size_t count, loff_t *ppos)
{
	struct wil6210_priv *wil = file->private_data;
	char buf[80];
	int n;
	static const char * const sstate[] = {"idle", "pending", "running"};

	n = snprintf(buf, sizeof(buf), "mode = %s\nstate = %s\n",
		     no_fw_recovery ? "manual" : "auto",
		     sstate[wil->recovery_state]);

	n = min_t(int, n, sizeof(buf));

	return simple_read_from_buffer(user_buf, count, ppos,
				       buf, n);
}

static ssize_t wil_write_file_recovery(struct file *file,
				       const char __user *buf_,
				       size_t count, loff_t *ppos)
{
	struct wil6210_priv *wil = file->private_data;
	static const char run_command[] = "run";
	char buf[sizeof(run_command) + 1]; /* to detect "runx" */
	ssize_t rc;

	if (wil->recovery_state != fw_recovery_pending) {
		wil_err(wil, "No recovery pending\n");
		return -EINVAL;
	}

	if (*ppos != 0) {
		wil_err(wil, "Offset [%d]\n", (int)*ppos);
		return -EINVAL;
	}

	if (count > sizeof(buf)) {
		wil_err(wil, "Input too long, len = %d\n", (int)count);
		return -EINVAL;
	}

	rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, buf_, count);
	if (rc < 0)
		return rc;

	buf[rc] = '\0';
	if (0 == strcmp(buf, run_command))
		wil_set_recovery_state(wil, fw_recovery_running);
	else
		wil_err(wil, "Bad recovery command \"%s\"\n", buf);

	return rc;
}

static const struct file_operations fops_recovery = {
	.read = wil_read_file_recovery,
	.write = wil_write_file_recovery,
	.open  = simple_open,
};

/*---------Station matrix------------*/
static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r)
{
	int i;
	u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size;
	unsigned long long drop_dup = r->drop_dup, drop_old = r->drop_old;

	seq_printf(s, "([%2d] %3d TU) 0x%03x [", r->buf_size, r->timeout,
		   r->head_seq_num);
	for (i = 0; i < r->buf_size; i++) {
		if (i == index)
			seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|');
		else
			seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_');
	}
	seq_printf(s,
		   "] total %llu drop %llu (dup %llu + old %llu) last 0x%03x\n",
		   r->total, drop_dup + drop_old, drop_dup, drop_old,
		   r->ssn_last_drop);
}

static void wil_print_rxtid_crypto(struct seq_file *s, int tid,
				   struct wil_tid_crypto_rx *c)
{
	int i;

	for (i = 0; i < 4; i++) {
		struct wil_tid_crypto_rx_single *cc = &c->key_id[i];

		if (cc->key_set)
			goto has_keys;
	}
	return;

has_keys:
	if (tid < WIL_STA_TID_NUM)
		seq_printf(s, "  [%2d] PN", tid);
	else
		seq_puts(s, "  [GR] PN");

	for (i = 0; i < 4; i++) {
		struct wil_tid_crypto_rx_single *cc = &c->key_id[i];

		seq_printf(s, " [%i%s]%6phN", i, cc->key_set ? "+" : "-",
			   cc->pn);
	}
	seq_puts(s, "\n");
}

static int wil_sta_debugfs_show(struct seq_file *s, void *data)
__acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock)
{
	struct wil6210_priv *wil = s->private;
	int i, tid, mcs;

	for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
		struct wil_sta_info *p = &wil->sta[i];
		char *status = "unknown";

		switch (p->status) {
		case wil_sta_unused:
			status = "unused   ";
			break;
		case wil_sta_conn_pending:
			status = "pending  ";
			break;
		case wil_sta_connected:
			status = "connected";
			break;
		}
		seq_printf(s, "[%d] %pM %s\n", i, p->addr, status);

		if (p->status == wil_sta_connected) {
			spin_lock_bh(&p->tid_rx_lock);
			for (tid = 0; tid < WIL_STA_TID_NUM; tid++) {
				struct wil_tid_ampdu_rx *r = p->tid_rx[tid];
				struct wil_tid_crypto_rx *c =
						&p->tid_crypto_rx[tid];

				if (r) {
					seq_printf(s, "  [%2d] ", tid);
					wil_print_rxtid(s, r);
				}

				wil_print_rxtid_crypto(s, tid, c);
			}
			wil_print_rxtid_crypto(s, WIL_STA_TID_NUM,
					       &p->group_crypto_rx);
			spin_unlock_bh(&p->tid_rx_lock);
			seq_printf(s,
				   "Rx invalid frame: non-data %lu, short %lu, large %lu, replay %lu\n",
				   p->stats.rx_non_data_frame,
				   p->stats.rx_short_frame,
				   p->stats.rx_large_frame,
				   p->stats.rx_replay);

			seq_puts(s, "Rx/MCS:");
			for (mcs = 0; mcs < ARRAY_SIZE(p->stats.rx_per_mcs);
			     mcs++)
				seq_printf(s, " %lld",
					   p->stats.rx_per_mcs[mcs]);
			seq_puts(s, "\n");
		}
	}

	return 0;
}

static int wil_sta_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, wil_sta_debugfs_show, inode->i_private);
}

static const struct file_operations fops_sta = {
	.open		= wil_sta_seq_open,
	.release	= single_release,
	.read		= seq_read,
	.llseek		= seq_lseek,
};

static ssize_t wil_read_file_led_cfg(struct file *file, char __user *user_buf,
				     size_t count, loff_t *ppos)
{
	char buf[80];
	int n;

	n = snprintf(buf, sizeof(buf),
		     "led_id is set to %d, echo 1 to enable, 0 to disable\n",
		     led_id);

	n = min_t(int, n, sizeof(buf));

	return simple_read_from_buffer(user_buf, count, ppos,
				       buf, n);
}

static ssize_t wil_write_file_led_cfg(struct file *file,
				      const char __user *buf_,
				      size_t count, loff_t *ppos)
{
	struct wil6210_priv *wil = file->private_data;
	int val;
	int rc;

	rc = kstrtoint_from_user(buf_, count, 0, &val);
	if (rc) {
		wil_err(wil, "Invalid argument\n");
		return rc;
	}

	wil_info(wil, "%s led %d\n", val ? "Enabling" : "Disabling", led_id);
	rc = wmi_led_cfg(wil, val);
	if (rc) {
		wil_info(wil, "%s led %d failed\n",
			 val ? "Enabling" : "Disabling", led_id);
		return rc;
	}

	return count;
}

static const struct file_operations fops_led_cfg = {
	.read = wil_read_file_led_cfg,
	.write = wil_write_file_led_cfg,
	.open  = simple_open,
};

/* led_blink_time, write:
 * "<blink_on_slow> <blink_off_slow> <blink_on_med> <blink_off_med> <blink_on_fast> <blink_off_fast>
 */
static ssize_t wil_write_led_blink_time(struct file *file,
					const char __user *buf,
					size_t len, loff_t *ppos)
{
	int rc;
	char *kbuf = kmalloc(len + 1, GFP_KERNEL);

	if (!kbuf)
		return -ENOMEM;

	rc = simple_write_to_buffer(kbuf, len, ppos, buf, len);
	if (rc != len) {
		kfree(kbuf);
		return rc >= 0 ? -EIO : rc;
	}

	kbuf[len] = '\0';
	rc = sscanf(kbuf, "%d %d %d %d %d %d",
		    &led_blink_time[WIL_LED_TIME_SLOW].on_ms,
		    &led_blink_time[WIL_LED_TIME_SLOW].off_ms,
		    &led_blink_time[WIL_LED_TIME_MED].on_ms,
		    &led_blink_time[WIL_LED_TIME_MED].off_ms,
		    &led_blink_time[WIL_LED_TIME_FAST].on_ms,
		    &led_blink_time[WIL_LED_TIME_FAST].off_ms);
	kfree(kbuf);

	if (rc < 0)
		return rc;
	if (rc < 6)
		return -EINVAL;

	return len;
}

static ssize_t wil_read_led_blink_time(struct file *file, char __user *user_buf,
				       size_t count, loff_t *ppos)
{
	static char text[400];

	snprintf(text, sizeof(text),
		 "To set led blink on/off time variables write:\n"
		 "<blink_on_slow> <blink_off_slow> <blink_on_med> "
		 "<blink_off_med> <blink_on_fast> <blink_off_fast>\n"
		 "The current values are:\n"
		 "%d %d %d %d %d %d\n",
		 led_blink_time[WIL_LED_TIME_SLOW].on_ms,
		 led_blink_time[WIL_LED_TIME_SLOW].off_ms,
		 led_blink_time[WIL_LED_TIME_MED].on_ms,
		 led_blink_time[WIL_LED_TIME_MED].off_ms,
		 led_blink_time[WIL_LED_TIME_FAST].on_ms,
		 led_blink_time[WIL_LED_TIME_FAST].off_ms);

	return simple_read_from_buffer(user_buf, count, ppos, text,
				       sizeof(text));
}

static const struct file_operations fops_led_blink_time = {
	.read = wil_read_led_blink_time,
	.write = wil_write_led_blink_time,
	.open  = simple_open,
};

/*---------FW capabilities------------*/
static int wil_fw_capabilities_debugfs_show(struct seq_file *s, void *data)
{
	struct wil6210_priv *wil = s->private;

	seq_printf(s, "fw_capabilities : %*pb\n", WMI_FW_CAPABILITY_MAX,
		   wil->fw_capabilities);

	return 0;
}

static int wil_fw_capabilities_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, wil_fw_capabilities_debugfs_show,
			   inode->i_private);
}

static const struct file_operations fops_fw_capabilities = {
	.open		= wil_fw_capabilities_seq_open,
	.release	= single_release,
	.read		= seq_read,
	.llseek		= seq_lseek,
};

/*---------FW version------------*/
static int wil_fw_version_debugfs_show(struct seq_file *s, void *data)
{
	struct wil6210_priv *wil = s->private;

	if (wil->fw_version[0])
		seq_printf(s, "%s\n", wil->fw_version);
	else
		seq_puts(s, "N/A\n");

	return 0;
}

static int wil_fw_version_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, wil_fw_version_debugfs_show,
			   inode->i_private);
}

static const struct file_operations fops_fw_version = {
	.open		= wil_fw_version_seq_open,
	.release	= single_release,
	.read		= seq_read,
	.llseek		= seq_lseek,
};

/*----------------*/
static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil,
				       struct dentry *dbg)
{
	int i;
	char name[32];

	for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
		struct wil_blob_wrapper *wil_blob = &wil->blobs[i];
		struct debugfs_blob_wrapper *blob = &wil_blob->blob;
		const struct fw_map *map = &fw_mapping[i];

		if (!map->name)
			continue;

		wil_blob->wil = wil;
		blob->data = (void * __force)wil->csr + HOSTADDR(map->host);
		blob->size = map->to - map->from;
		snprintf(name, sizeof(name), "blob_%s", map->name);
		wil_debugfs_create_ioblob(name, S_IRUGO, dbg, wil_blob);
	}
}

/* misc files */
static const struct {
	const char *name;
	umode_t mode;
	const struct file_operations *fops;
} dbg_files[] = {
	{"mbox",	S_IRUGO,		&fops_mbox},
	{"vrings",	S_IRUGO,		&fops_vring},
	{"stations",	S_IRUGO,		&fops_sta},
	{"desc",	S_IRUGO,		&fops_txdesc},
	{"bf",		S_IRUGO,		&fops_bf},
	{"ssid",	S_IRUGO | S_IWUSR,	&fops_ssid},
	{"mem_val",	S_IRUGO,		&fops_memread},
	{"reset",		  S_IWUSR,	&fops_reset},
	{"rxon",		  S_IWUSR,	&fops_rxon},
	{"tx_mgmt",		  S_IWUSR,	&fops_txmgmt},
	{"wmi_send",		  S_IWUSR,	&fops_wmi},
	{"back",	S_IRUGO | S_IWUSR,	&fops_back},
	{"pmccfg",	S_IRUGO | S_IWUSR,	&fops_pmccfg},
	{"pmcdata",	S_IRUGO,		&fops_pmcdata},
	{"temp",	S_IRUGO,		&fops_temp},
	{"freq",	S_IRUGO,		&fops_freq},
	{"link",	S_IRUGO,		&fops_link},
	{"info",	S_IRUGO,		&fops_info},
	{"recovery",	S_IRUGO | S_IWUSR,	&fops_recovery},
	{"led_cfg",	S_IRUGO | S_IWUSR,	&fops_led_cfg},
	{"led_blink_time",	S_IRUGO | S_IWUSR,	&fops_led_blink_time},
	{"fw_capabilities",	S_IRUGO,	&fops_fw_capabilities},
	{"fw_version",	S_IRUGO,		&fops_fw_version},
};

static void wil6210_debugfs_init_files(struct wil6210_priv *wil,
				       struct dentry *dbg)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(dbg_files); i++)
		debugfs_create_file(dbg_files[i].name, dbg_files[i].mode, dbg,
				    wil, dbg_files[i].fops);
}

/* interrupt control blocks */
static const struct {
	const char *name;
	u32 icr_off;
} dbg_icr[] = {
	{"USER_ICR",		HOSTADDR(RGF_USER_USER_ICR)},
	{"DMA_EP_TX_ICR",	HOSTADDR(RGF_DMA_EP_TX_ICR)},
	{"DMA_EP_RX_ICR",	HOSTADDR(RGF_DMA_EP_RX_ICR)},
	{"DMA_EP_MISC_ICR",	HOSTADDR(RGF_DMA_EP_MISC_ICR)},
};

static void wil6210_debugfs_init_isr(struct wil6210_priv *wil,
				     struct dentry *dbg)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(dbg_icr); i++)
		wil6210_debugfs_create_ISR(wil, dbg_icr[i].name, dbg,
					   dbg_icr[i].icr_off);
}

#define WIL_FIELD(name, mode, type) { __stringify(name), mode, \
	offsetof(struct wil6210_priv, name), type}

/* fields in struct wil6210_priv */
static const struct dbg_off dbg_wil_off[] = {
	WIL_FIELD(privacy,	S_IRUGO,		doff_u32),
	WIL_FIELD(status[0],	S_IRUGO | S_IWUSR,	doff_ulong),
	WIL_FIELD(hw_version,	S_IRUGO,		doff_x32),
	WIL_FIELD(recovery_count, S_IRUGO,		doff_u32),
	WIL_FIELD(ap_isolate,	S_IRUGO,		doff_u32),
	WIL_FIELD(discovery_mode, S_IRUGO | S_IWUSR,	doff_u8),
	{},
};

static const struct dbg_off dbg_wil_regs[] = {
	{"RGF_MAC_MTRL_COUNTER_0", S_IRUGO, HOSTADDR(RGF_MAC_MTRL_COUNTER_0),
		doff_io32},
	{"RGF_USER_USAGE_1", S_IRUGO, HOSTADDR(RGF_USER_USAGE_1), doff_io32},
	{},
};

/* static parameters */
static const struct dbg_off dbg_statics[] = {
	{"desc_index",	S_IRUGO | S_IWUSR, (ulong)&dbg_txdesc_index, doff_u32},
	{"vring_index",	S_IRUGO | S_IWUSR, (ulong)&dbg_vring_index, doff_u32},
	{"mem_addr",	S_IRUGO | S_IWUSR, (ulong)&mem_addr, doff_u32},
	{"vring_idle_trsh", S_IRUGO | S_IWUSR, (ulong)&vring_idle_trsh,
	 doff_u32},
	{"led_polarity", S_IRUGO | S_IWUSR, (ulong)&led_polarity, doff_u8},
	{},
};

int wil6210_debugfs_init(struct wil6210_priv *wil)
{
	struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME,
			wil_to_wiphy(wil)->debugfsdir);

	if (IS_ERR_OR_NULL(dbg))
		return -ENODEV;

	wil_pmc_init(wil);

	wil6210_debugfs_init_files(wil, dbg);
	wil6210_debugfs_init_isr(wil, dbg);
	wil6210_debugfs_init_blobs(wil, dbg);
	wil6210_debugfs_init_offset(wil, dbg, wil, dbg_wil_off);
	wil6210_debugfs_init_offset(wil, dbg, (void * __force)wil->csr,
				    dbg_wil_regs);
	wil6210_debugfs_init_offset(wil, dbg, NULL, dbg_statics);

	wil6210_debugfs_create_pseudo_ISR(wil, dbg);

	wil6210_debugfs_create_ITR_CNT(wil, dbg);

	return 0;
}

void wil6210_debugfs_remove(struct wil6210_priv *wil)
{
	debugfs_remove_recursive(wil->debug);
	wil->debug = NULL;

	/* free pmc memory without sending command to fw, as it will
	 * be reset on the way down anyway
	 */
	wil_pmc_free(wil, false);
}