summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
blob: 6651e78b39ecf9855208811c2b481e0afd26dfc8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
 * Copyright (C) 2005-2014, 2018-2021 Intel Corporation
 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
 * Copyright (C) 2016-2017 Intel Deutschland GmbH
 */
#include <linux/completion.h>
#include <linux/dma-mapping.h>
#include <linux/firmware.h>
#include <linux/module.h>
#include <linux/vmalloc.h>

#include "iwl-drv.h"
#include "iwl-csr.h"
#include "iwl-debug.h"
#include "iwl-trans.h"
#include "iwl-op-mode.h"
#include "iwl-agn-hw.h"
#include "fw/img.h"
#include "iwl-dbg-tlv.h"
#include "iwl-config.h"
#include "iwl-modparams.h"
#include "fw/api/alive.h"
#include "fw/api/mac.h"

/******************************************************************************
 *
 * module boiler plate
 *
 ******************************************************************************/

#define DRV_DESCRIPTION	"Intel(R) Wireless WiFi driver for Linux"
MODULE_DESCRIPTION(DRV_DESCRIPTION);
MODULE_LICENSE("GPL");

#ifdef CONFIG_IWLWIFI_DEBUGFS
static struct dentry *iwl_dbgfs_root;
#endif

/**
 * struct iwl_drv - drv common data
 * @list: list of drv structures using this opmode
 * @fw: the iwl_fw structure
 * @op_mode: the running op_mode
 * @trans: transport layer
 * @dev: for debug prints only
 * @fw_index: firmware revision to try loading
 * @firmware_name: composite filename of ucode file to load
 * @request_firmware_complete: the firmware has been obtained from user space
 * @dbgfs_drv: debugfs root directory entry
 * @dbgfs_trans: debugfs transport directory entry
 * @dbgfs_op_mode: debugfs op_mode directory entry
 */
struct iwl_drv {
	struct list_head list;
	struct iwl_fw fw;

	struct iwl_op_mode *op_mode;
	struct iwl_trans *trans;
	struct device *dev;

	int fw_index;                   /* firmware we're trying to load */
	char firmware_name[64];         /* name of firmware file to load */

	struct completion request_firmware_complete;

#ifdef CONFIG_IWLWIFI_DEBUGFS
	struct dentry *dbgfs_drv;
	struct dentry *dbgfs_trans;
	struct dentry *dbgfs_op_mode;
#endif
};

enum {
	DVM_OP_MODE,
	MVM_OP_MODE,
};

/* Protects the table contents, i.e. the ops pointer & drv list */
static DEFINE_MUTEX(iwlwifi_opmode_table_mtx);
static struct iwlwifi_opmode_table {
	const char *name;			/* name: iwldvm, iwlmvm, etc */
	const struct iwl_op_mode_ops *ops;	/* pointer to op_mode ops */
	struct list_head drv;		/* list of devices using this op_mode */
} iwlwifi_opmode_table[] = {		/* ops set when driver is initialized */
	[DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
	[MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
};

#define IWL_DEFAULT_SCAN_CHANNELS 40

/*
 * struct fw_sec: Just for the image parsing process.
 * For the fw storage we are using struct fw_desc.
 */
struct fw_sec {
	const void *data;		/* the sec data */
	size_t size;			/* section size */
	u32 offset;			/* offset of writing in the device */
};

static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
{
	vfree(desc->data);
	desc->data = NULL;
	desc->len = 0;
}

static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
{
	int i;
	for (i = 0; i < img->num_sec; i++)
		iwl_free_fw_desc(drv, &img->sec[i]);
	kfree(img->sec);
}

static void iwl_dealloc_ucode(struct iwl_drv *drv)
{
	int i;

	kfree(drv->fw.dbg.dest_tlv);
	for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++)
		kfree(drv->fw.dbg.conf_tlv[i]);
	for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++)
		kfree(drv->fw.dbg.trigger_tlv[i]);
	kfree(drv->fw.dbg.mem_tlv);
	kfree(drv->fw.iml);
	kfree(drv->fw.ucode_capa.cmd_versions);
	kfree(drv->fw.phy_integration_ver);

	for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
		iwl_free_fw_img(drv, drv->fw.img + i);

	/* clear the data for the aborted load case */
	memset(&drv->fw, 0, sizeof(drv->fw));
}

static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
			     struct fw_sec *sec)
{
	void *data;

	desc->data = NULL;

	if (!sec || !sec->size)
		return -EINVAL;

	data = vmalloc(sec->size);
	if (!data)
		return -ENOMEM;

	desc->len = sec->size;
	desc->offset = sec->offset;
	memcpy(data, sec->data, desc->len);
	desc->data = data;

	return 0;
}

static void iwl_req_fw_callback(const struct firmware *ucode_raw,
				void *context);

static int iwl_request_firmware(struct iwl_drv *drv, bool first)
{
	const struct iwl_cfg *cfg = drv->trans->cfg;
	char tag[8];

	if (drv->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
	    (drv->trans->hw_rev_step != SILICON_B_STEP &&
	     drv->trans->hw_rev_step != SILICON_C_STEP)) {
		IWL_ERR(drv,
			"Only HW steps B and C are currently supported (0x%0x)\n",
			drv->trans->hw_rev);
		return -EINVAL;
	}

	if (first) {
		drv->fw_index = cfg->ucode_api_max;
		sprintf(tag, "%d", drv->fw_index);
	} else {
		drv->fw_index--;
		sprintf(tag, "%d", drv->fw_index);
	}

	if (drv->fw_index < cfg->ucode_api_min) {
		IWL_ERR(drv, "no suitable firmware found!\n");

		if (cfg->ucode_api_min == cfg->ucode_api_max) {
			IWL_ERR(drv, "%s%d is required\n", cfg->fw_name_pre,
				cfg->ucode_api_max);
		} else {
			IWL_ERR(drv, "minimum version required: %s%d\n",
				cfg->fw_name_pre, cfg->ucode_api_min);
			IWL_ERR(drv, "maximum version supported: %s%d\n",
				cfg->fw_name_pre, cfg->ucode_api_max);
		}

		IWL_ERR(drv,
			"check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
		return -ENOENT;
	}

	snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
		 cfg->fw_name_pre, tag);

	IWL_DEBUG_FW_INFO(drv, "attempting to load firmware '%s'\n",
			  drv->firmware_name);

	return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
				       drv->trans->dev,
				       GFP_KERNEL, drv, iwl_req_fw_callback);
}

struct fw_img_parsing {
	struct fw_sec *sec;
	int sec_counter;
};

/*
 * struct fw_sec_parsing: to extract fw section and it's offset from tlv
 */
struct fw_sec_parsing {
	__le32 offset;
	const u8 data[];
} __packed;

/**
 * struct iwl_tlv_calib_data - parse the default calib data from TLV
 *
 * @ucode_type: the uCode to which the following default calib relates.
 * @calib: default calibrations.
 */
struct iwl_tlv_calib_data {
	__le32 ucode_type;
	struct iwl_tlv_calib_ctrl calib;
} __packed;

struct iwl_firmware_pieces {
	struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];

	u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
	u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;

	/* FW debug data parsed for driver usage */
	bool dbg_dest_tlv_init;
	u8 *dbg_dest_ver;
	union {
		struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
		struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1;
	};
	struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
	size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
	struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
	size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
	struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
	size_t n_mem_tlv;
};

/*
 * These functions are just to extract uCode section data from the pieces
 * structure.
 */
static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
			      enum iwl_ucode_type type,
			      int  sec)
{
	return &pieces->img[type].sec[sec];
}

static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
			   enum iwl_ucode_type type,
			   int sec)
{
	struct fw_img_parsing *img = &pieces->img[type];
	struct fw_sec *sec_memory;
	int size = sec + 1;
	size_t alloc_size = sizeof(*img->sec) * size;

	if (img->sec && img->sec_counter >= size)
		return;

	sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
	if (!sec_memory)
		return;

	img->sec = sec_memory;
	img->sec_counter = size;
}

static void set_sec_data(struct iwl_firmware_pieces *pieces,
			 enum iwl_ucode_type type,
			 int sec,
			 const void *data)
{
	alloc_sec_data(pieces, type, sec);

	pieces->img[type].sec[sec].data = data;
}

static void set_sec_size(struct iwl_firmware_pieces *pieces,
			 enum iwl_ucode_type type,
			 int sec,
			 size_t size)
{
	alloc_sec_data(pieces, type, sec);

	pieces->img[type].sec[sec].size = size;
}

static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
			   enum iwl_ucode_type type,
			   int sec)
{
	return pieces->img[type].sec[sec].size;
}

static void set_sec_offset(struct iwl_firmware_pieces *pieces,
			   enum iwl_ucode_type type,
			   int sec,
			   u32 offset)
{
	alloc_sec_data(pieces, type, sec);

	pieces->img[type].sec[sec].offset = offset;
}

static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
{
	int i, j;
	struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
	struct iwl_fw_cipher_scheme *fwcs;

	if (len < sizeof(*l) ||
	    len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
		return -EINVAL;

	for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
		fwcs = &l->cs[j];

		/* we skip schemes with zero cipher suite selector */
		if (!fwcs->cipher)
			continue;

		fw->cs[j++] = *fwcs;
	}

	return 0;
}

/*
 * Gets uCode section from tlv.
 */
static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
			       const void *data, enum iwl_ucode_type type,
			       int size)
{
	struct fw_img_parsing *img;
	struct fw_sec *sec;
	struct fw_sec_parsing *sec_parse;
	size_t alloc_size;

	if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
		return -1;

	sec_parse = (struct fw_sec_parsing *)data;

	img = &pieces->img[type];

	alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
	sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
	if (!sec)
		return -ENOMEM;
	img->sec = sec;

	sec = &img->sec[img->sec_counter];

	sec->offset = le32_to_cpu(sec_parse->offset);
	sec->data = sec_parse->data;
	sec->size = size - sizeof(sec_parse->offset);

	++img->sec_counter;

	return 0;
}

static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
{
	struct iwl_tlv_calib_data *def_calib =
					(struct iwl_tlv_calib_data *)data;
	u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
	if (ucode_type >= IWL_UCODE_TYPE_MAX) {
		IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
			ucode_type);
		return -EINVAL;
	}
	drv->fw.default_calib[ucode_type].flow_trigger =
		def_calib->calib.flow_trigger;
	drv->fw.default_calib[ucode_type].event_trigger =
		def_calib->calib.event_trigger;

	return 0;
}

static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
				    struct iwl_ucode_capabilities *capa)
{
	const struct iwl_ucode_api *ucode_api = (void *)data;
	u32 api_index = le32_to_cpu(ucode_api->api_index);
	u32 api_flags = le32_to_cpu(ucode_api->api_flags);
	int i;

	if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
		IWL_WARN(drv,
			 "api flags index %d larger than supported by driver\n",
			 api_index);
		return;
	}

	for (i = 0; i < 32; i++) {
		if (api_flags & BIT(i))
			__set_bit(i + 32 * api_index, capa->_api);
	}
}

static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
				       struct iwl_ucode_capabilities *capa)
{
	const struct iwl_ucode_capa *ucode_capa = (void *)data;
	u32 api_index = le32_to_cpu(ucode_capa->api_index);
	u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
	int i;

	if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
		IWL_WARN(drv,
			 "capa flags index %d larger than supported by driver\n",
			 api_index);
		return;
	}

	for (i = 0; i < 32; i++) {
		if (api_flags & BIT(i))
			__set_bit(i + 32 * api_index, capa->_capa);
	}
}

static const char *iwl_reduced_fw_name(struct iwl_drv *drv)
{
	const char *name = drv->firmware_name;

	if (strncmp(name, "iwlwifi-", 8) == 0)
		name += 8;

	return name;
}

static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
				    const struct firmware *ucode_raw,
				    struct iwl_firmware_pieces *pieces)
{
	struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
	u32 api_ver, hdr_size, build;
	char buildstr[25];
	const u8 *src;

	drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
	api_ver = IWL_UCODE_API(drv->fw.ucode_ver);

	switch (api_ver) {
	default:
		hdr_size = 28;
		if (ucode_raw->size < hdr_size) {
			IWL_ERR(drv, "File size too small!\n");
			return -EINVAL;
		}
		build = le32_to_cpu(ucode->u.v2.build);
		set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
			     le32_to_cpu(ucode->u.v2.inst_size));
		set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
			     le32_to_cpu(ucode->u.v2.data_size));
		set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
			     le32_to_cpu(ucode->u.v2.init_size));
		set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
			     le32_to_cpu(ucode->u.v2.init_data_size));
		src = ucode->u.v2.data;
		break;
	case 0:
	case 1:
	case 2:
		hdr_size = 24;
		if (ucode_raw->size < hdr_size) {
			IWL_ERR(drv, "File size too small!\n");
			return -EINVAL;
		}
		build = 0;
		set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
			     le32_to_cpu(ucode->u.v1.inst_size));
		set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
			     le32_to_cpu(ucode->u.v1.data_size));
		set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
			     le32_to_cpu(ucode->u.v1.init_size));
		set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
			     le32_to_cpu(ucode->u.v1.init_data_size));
		src = ucode->u.v1.data;
		break;
	}

	if (build)
		sprintf(buildstr, " build %u", build);
	else
		buildstr[0] = '\0';

	snprintf(drv->fw.fw_version,
		 sizeof(drv->fw.fw_version),
		 "%u.%u.%u.%u%s %s",
		 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
		 IWL_UCODE_MINOR(drv->fw.ucode_ver),
		 IWL_UCODE_API(drv->fw.ucode_ver),
		 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
		 buildstr, iwl_reduced_fw_name(drv));

	/* Verify size of file vs. image size info in file's header */

	if (ucode_raw->size != hdr_size +
	    get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
	    get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
	    get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
	    get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {

		IWL_ERR(drv,
			"uCode file size %d does not match expected size\n",
			(int)ucode_raw->size);
		return -EINVAL;
	}


	set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
	src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
	set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
		       IWLAGN_RTC_INST_LOWER_BOUND);
	set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
	src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
	set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
		       IWLAGN_RTC_DATA_LOWER_BOUND);
	set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
	src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
	set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
		       IWLAGN_RTC_INST_LOWER_BOUND);
	set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
	src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
	set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
		       IWLAGN_RTC_DATA_LOWER_BOUND);
	return 0;
}

static void iwl_drv_set_dump_exclude(struct iwl_drv *drv,
				     enum iwl_ucode_tlv_type tlv_type,
				     const void *tlv_data, u32 tlv_len)
{
	const struct iwl_fw_dump_exclude *fw = tlv_data;
	struct iwl_dump_exclude *excl;

	if (tlv_len < sizeof(*fw))
		return;

	if (tlv_type == IWL_UCODE_TLV_SEC_TABLE_ADDR) {
		excl = &drv->fw.dump_excl[0];

		/* second time we find this, it's for WoWLAN */
		if (excl->addr)
			excl = &drv->fw.dump_excl_wowlan[0];
	} else if (fw_has_capa(&drv->fw.ucode_capa,
			       IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG)) {
		/* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is regular image */
		excl = &drv->fw.dump_excl[0];
	} else {
		/* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is WoWLAN image */
		excl = &drv->fw.dump_excl_wowlan[0];
	}

	if (excl->addr)
		excl++;

	if (excl->addr) {
		IWL_DEBUG_FW_INFO(drv, "found too many excludes in fw file\n");
		return;
	}

	excl->addr = le32_to_cpu(fw->addr) & ~FW_ADDR_CACHE_CONTROL;
	excl->size = le32_to_cpu(fw->size);
}

static void iwl_parse_dbg_tlv_assert_tables(struct iwl_drv *drv,
					    const struct iwl_ucode_tlv *tlv)
{
	const struct iwl_fw_ini_region_tlv *region;
	u32 length = le32_to_cpu(tlv->length);
	u32 addr;

	if (length < offsetof(typeof(*region), special_mem) +
		     sizeof(region->special_mem))
		return;

	region = (void *)tlv->data;
	addr = le32_to_cpu(region->special_mem.base_addr);
	addr += le32_to_cpu(region->special_mem.offset);
	addr &= ~FW_ADDR_CACHE_CONTROL;

	if (region->type != IWL_FW_INI_REGION_SPECIAL_DEVICE_MEMORY)
		return;

	switch (region->sub_type) {
	case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_UMAC_ERROR_TABLE:
		drv->trans->dbg.umac_error_event_table = addr;
		drv->trans->dbg.error_event_table_tlv_status |=
			IWL_ERROR_EVENT_TABLE_UMAC;
		break;
	case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_1_ERROR_TABLE:
		drv->trans->dbg.lmac_error_event_table[0] = addr;
		drv->trans->dbg.error_event_table_tlv_status |=
			IWL_ERROR_EVENT_TABLE_LMAC1;
		break;
	case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_2_ERROR_TABLE:
		drv->trans->dbg.lmac_error_event_table[1] = addr;
		drv->trans->dbg.error_event_table_tlv_status |=
			IWL_ERROR_EVENT_TABLE_LMAC2;
		break;
	case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_1_ERROR_TABLE:
		drv->trans->dbg.tcm_error_event_table[0] = addr;
		drv->trans->dbg.error_event_table_tlv_status |=
			IWL_ERROR_EVENT_TABLE_TCM1;
		break;
	case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_2_ERROR_TABLE:
		drv->trans->dbg.tcm_error_event_table[1] = addr;
		drv->trans->dbg.error_event_table_tlv_status |=
			IWL_ERROR_EVENT_TABLE_TCM2;
		break;
	case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_1_ERROR_TABLE:
		drv->trans->dbg.rcm_error_event_table[0] = addr;
		drv->trans->dbg.error_event_table_tlv_status |=
			IWL_ERROR_EVENT_TABLE_RCM1;
		break;
	case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_2_ERROR_TABLE:
		drv->trans->dbg.rcm_error_event_table[1] = addr;
		drv->trans->dbg.error_event_table_tlv_status |=
			IWL_ERROR_EVENT_TABLE_RCM2;
		break;
	default:
		break;
	}
}

static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
				const struct firmware *ucode_raw,
				struct iwl_firmware_pieces *pieces,
				struct iwl_ucode_capabilities *capa,
				bool *usniffer_images)
{
	struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
	const struct iwl_ucode_tlv *tlv;
	size_t len = ucode_raw->size;
	const u8 *data;
	u32 tlv_len;
	u32 usniffer_img;
	enum iwl_ucode_tlv_type tlv_type;
	const u8 *tlv_data;
	char buildstr[25];
	u32 build, paging_mem_size;
	int num_of_cpus;
	bool usniffer_req = false;

	if (len < sizeof(*ucode)) {
		IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
		return -EINVAL;
	}

	if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
		IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
			le32_to_cpu(ucode->magic));
		return -EINVAL;
	}

	drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
	memcpy(drv->fw.human_readable, ucode->human_readable,
	       sizeof(drv->fw.human_readable));
	build = le32_to_cpu(ucode->build);

	if (build)
		sprintf(buildstr, " build %u", build);
	else
		buildstr[0] = '\0';

	snprintf(drv->fw.fw_version,
		 sizeof(drv->fw.fw_version),
		 "%u.%u.%u.%u%s %s",
		 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
		 IWL_UCODE_MINOR(drv->fw.ucode_ver),
		 IWL_UCODE_API(drv->fw.ucode_ver),
		 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
		 buildstr, iwl_reduced_fw_name(drv));

	data = ucode->data;

	len -= sizeof(*ucode);

	while (len >= sizeof(*tlv)) {
		len -= sizeof(*tlv);
		tlv = (void *)data;

		tlv_len = le32_to_cpu(tlv->length);
		tlv_type = le32_to_cpu(tlv->type);
		tlv_data = tlv->data;

		if (len < tlv_len) {
			IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
				len, tlv_len);
			return -EINVAL;
		}
		len -= ALIGN(tlv_len, 4);
		data += sizeof(*tlv) + ALIGN(tlv_len, 4);

		switch (tlv_type) {
		case IWL_UCODE_TLV_INST:
			set_sec_data(pieces, IWL_UCODE_REGULAR,
				     IWL_UCODE_SECTION_INST, tlv_data);
			set_sec_size(pieces, IWL_UCODE_REGULAR,
				     IWL_UCODE_SECTION_INST, tlv_len);
			set_sec_offset(pieces, IWL_UCODE_REGULAR,
				       IWL_UCODE_SECTION_INST,
				       IWLAGN_RTC_INST_LOWER_BOUND);
			break;
		case IWL_UCODE_TLV_DATA:
			set_sec_data(pieces, IWL_UCODE_REGULAR,
				     IWL_UCODE_SECTION_DATA, tlv_data);
			set_sec_size(pieces, IWL_UCODE_REGULAR,
				     IWL_UCODE_SECTION_DATA, tlv_len);
			set_sec_offset(pieces, IWL_UCODE_REGULAR,
				       IWL_UCODE_SECTION_DATA,
				       IWLAGN_RTC_DATA_LOWER_BOUND);
			break;
		case IWL_UCODE_TLV_INIT:
			set_sec_data(pieces, IWL_UCODE_INIT,
				     IWL_UCODE_SECTION_INST, tlv_data);
			set_sec_size(pieces, IWL_UCODE_INIT,
				     IWL_UCODE_SECTION_INST, tlv_len);
			set_sec_offset(pieces, IWL_UCODE_INIT,
				       IWL_UCODE_SECTION_INST,
				       IWLAGN_RTC_INST_LOWER_BOUND);
			break;
		case IWL_UCODE_TLV_INIT_DATA:
			set_sec_data(pieces, IWL_UCODE_INIT,
				     IWL_UCODE_SECTION_DATA, tlv_data);
			set_sec_size(pieces, IWL_UCODE_INIT,
				     IWL_UCODE_SECTION_DATA, tlv_len);
			set_sec_offset(pieces, IWL_UCODE_INIT,
				       IWL_UCODE_SECTION_DATA,
				       IWLAGN_RTC_DATA_LOWER_BOUND);
			break;
		case IWL_UCODE_TLV_BOOT:
			IWL_ERR(drv, "Found unexpected BOOT ucode\n");
			break;
		case IWL_UCODE_TLV_PROBE_MAX_LEN:
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			capa->max_probe_length =
					le32_to_cpup((__le32 *)tlv_data);
			break;
		case IWL_UCODE_TLV_PAN:
			if (tlv_len)
				goto invalid_tlv_len;
			capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
			break;
		case IWL_UCODE_TLV_FLAGS:
			/* must be at least one u32 */
			if (tlv_len < sizeof(u32))
				goto invalid_tlv_len;
			/* and a proper number of u32s */
			if (tlv_len % sizeof(u32))
				goto invalid_tlv_len;
			/*
			 * This driver only reads the first u32 as
			 * right now no more features are defined,
			 * if that changes then either the driver
			 * will not work with the new firmware, or
			 * it'll not take advantage of new features.
			 */
			capa->flags = le32_to_cpup((__le32 *)tlv_data);
			break;
		case IWL_UCODE_TLV_API_CHANGES_SET:
			if (tlv_len != sizeof(struct iwl_ucode_api))
				goto invalid_tlv_len;
			iwl_set_ucode_api_flags(drv, tlv_data, capa);
			break;
		case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
			if (tlv_len != sizeof(struct iwl_ucode_capa))
				goto invalid_tlv_len;
			iwl_set_ucode_capabilities(drv, tlv_data, capa);
			break;
		case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			pieces->init_evtlog_ptr =
					le32_to_cpup((__le32 *)tlv_data);
			break;
		case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			pieces->init_evtlog_size =
					le32_to_cpup((__le32 *)tlv_data);
			break;
		case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			pieces->init_errlog_ptr =
					le32_to_cpup((__le32 *)tlv_data);
			break;
		case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			pieces->inst_evtlog_ptr =
					le32_to_cpup((__le32 *)tlv_data);
			break;
		case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			pieces->inst_evtlog_size =
					le32_to_cpup((__le32 *)tlv_data);
			break;
		case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			pieces->inst_errlog_ptr =
					le32_to_cpup((__le32 *)tlv_data);
			break;
		case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
			if (tlv_len)
				goto invalid_tlv_len;
			drv->fw.enhance_sensitivity_table = true;
			break;
		case IWL_UCODE_TLV_WOWLAN_INST:
			set_sec_data(pieces, IWL_UCODE_WOWLAN,
				     IWL_UCODE_SECTION_INST, tlv_data);
			set_sec_size(pieces, IWL_UCODE_WOWLAN,
				     IWL_UCODE_SECTION_INST, tlv_len);
			set_sec_offset(pieces, IWL_UCODE_WOWLAN,
				       IWL_UCODE_SECTION_INST,
				       IWLAGN_RTC_INST_LOWER_BOUND);
			break;
		case IWL_UCODE_TLV_WOWLAN_DATA:
			set_sec_data(pieces, IWL_UCODE_WOWLAN,
				     IWL_UCODE_SECTION_DATA, tlv_data);
			set_sec_size(pieces, IWL_UCODE_WOWLAN,
				     IWL_UCODE_SECTION_DATA, tlv_len);
			set_sec_offset(pieces, IWL_UCODE_WOWLAN,
				       IWL_UCODE_SECTION_DATA,
				       IWLAGN_RTC_DATA_LOWER_BOUND);
			break;
		case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			capa->standard_phy_calibration_size =
					le32_to_cpup((__le32 *)tlv_data);
			break;
		case IWL_UCODE_TLV_SEC_RT:
			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
					    tlv_len);
			drv->fw.type = IWL_FW_MVM;
			break;
		case IWL_UCODE_TLV_SEC_INIT:
			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
					    tlv_len);
			drv->fw.type = IWL_FW_MVM;
			break;
		case IWL_UCODE_TLV_SEC_WOWLAN:
			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
					    tlv_len);
			drv->fw.type = IWL_FW_MVM;
			break;
		case IWL_UCODE_TLV_DEF_CALIB:
			if (tlv_len != sizeof(struct iwl_tlv_calib_data))
				goto invalid_tlv_len;
			if (iwl_set_default_calib(drv, tlv_data))
				goto tlv_error;
			break;
		case IWL_UCODE_TLV_PHY_SKU:
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
			drv->fw.valid_tx_ant = (drv->fw.phy_config &
						FW_PHY_CFG_TX_CHAIN) >>
						FW_PHY_CFG_TX_CHAIN_POS;
			drv->fw.valid_rx_ant = (drv->fw.phy_config &
						FW_PHY_CFG_RX_CHAIN) >>
						FW_PHY_CFG_RX_CHAIN_POS;
			break;
		case IWL_UCODE_TLV_SECURE_SEC_RT:
			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
					    tlv_len);
			drv->fw.type = IWL_FW_MVM;
			break;
		case IWL_UCODE_TLV_SECURE_SEC_INIT:
			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
					    tlv_len);
			drv->fw.type = IWL_FW_MVM;
			break;
		case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
					    tlv_len);
			drv->fw.type = IWL_FW_MVM;
			break;
		case IWL_UCODE_TLV_NUM_OF_CPU:
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			num_of_cpus =
				le32_to_cpup((__le32 *)tlv_data);

			if (num_of_cpus == 2) {
				drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
					true;
				drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
					true;
				drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
					true;
			} else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
				IWL_ERR(drv, "Driver support upto 2 CPUs\n");
				return -EINVAL;
			}
			break;
		case IWL_UCODE_TLV_CSCHEME:
			if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
				goto invalid_tlv_len;
			break;
		case IWL_UCODE_TLV_N_SCAN_CHANNELS:
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			capa->n_scan_channels =
				le32_to_cpup((__le32 *)tlv_data);
			break;
		case IWL_UCODE_TLV_FW_VERSION: {
			__le32 *ptr = (void *)tlv_data;
			u32 major, minor;
			u8 local_comp;

			if (tlv_len != sizeof(u32) * 3)
				goto invalid_tlv_len;

			major = le32_to_cpup(ptr++);
			minor = le32_to_cpup(ptr++);
			local_comp = le32_to_cpup(ptr);

			if (major >= 35)
				snprintf(drv->fw.fw_version,
					 sizeof(drv->fw.fw_version),
					"%u.%08x.%u %s", major, minor,
					local_comp, iwl_reduced_fw_name(drv));
			else
				snprintf(drv->fw.fw_version,
					 sizeof(drv->fw.fw_version),
					"%u.%u.%u %s", major, minor,
					local_comp, iwl_reduced_fw_name(drv));
			break;
			}
		case IWL_UCODE_TLV_FW_DBG_DEST: {
			struct iwl_fw_dbg_dest_tlv *dest = NULL;
			struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
			u8 mon_mode;

			pieces->dbg_dest_ver = (u8 *)tlv_data;
			if (*pieces->dbg_dest_ver == 1) {
				dest = (void *)tlv_data;
			} else if (*pieces->dbg_dest_ver == 0) {
				dest_v1 = (void *)tlv_data;
			} else {
				IWL_ERR(drv,
					"The version is %d, and it is invalid\n",
					*pieces->dbg_dest_ver);
				break;
			}

			if (pieces->dbg_dest_tlv_init) {
				IWL_ERR(drv,
					"dbg destination ignored, already exists\n");
				break;
			}

			pieces->dbg_dest_tlv_init = true;

			if (dest_v1) {
				pieces->dbg_dest_tlv_v1 = dest_v1;
				mon_mode = dest_v1->monitor_mode;
			} else {
				pieces->dbg_dest_tlv = dest;
				mon_mode = dest->monitor_mode;
			}

			IWL_INFO(drv, "Found debug destination: %s\n",
				 get_fw_dbg_mode_string(mon_mode));

			drv->fw.dbg.n_dest_reg = (dest_v1) ?
				tlv_len -
				offsetof(struct iwl_fw_dbg_dest_tlv_v1,
					 reg_ops) :
				tlv_len -
				offsetof(struct iwl_fw_dbg_dest_tlv,
					 reg_ops);

			drv->fw.dbg.n_dest_reg /=
				sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]);

			break;
			}
		case IWL_UCODE_TLV_FW_DBG_CONF: {
			struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;

			if (!pieces->dbg_dest_tlv_init) {
				IWL_ERR(drv,
					"Ignore dbg config %d - no destination configured\n",
					conf->id);
				break;
			}

			if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) {
				IWL_ERR(drv,
					"Skip unknown configuration: %d\n",
					conf->id);
				break;
			}

			if (pieces->dbg_conf_tlv[conf->id]) {
				IWL_ERR(drv,
					"Ignore duplicate dbg config %d\n",
					conf->id);
				break;
			}

			if (conf->usniffer)
				usniffer_req = true;

			IWL_INFO(drv, "Found debug configuration: %d\n",
				 conf->id);

			pieces->dbg_conf_tlv[conf->id] = conf;
			pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
			break;
			}
		case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
			struct iwl_fw_dbg_trigger_tlv *trigger =
				(void *)tlv_data;
			u32 trigger_id = le32_to_cpu(trigger->id);

			if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) {
				IWL_ERR(drv,
					"Skip unknown trigger: %u\n",
					trigger->id);
				break;
			}

			if (pieces->dbg_trigger_tlv[trigger_id]) {
				IWL_ERR(drv,
					"Ignore duplicate dbg trigger %u\n",
					trigger->id);
				break;
			}

			IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);

			pieces->dbg_trigger_tlv[trigger_id] = trigger;
			pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
			break;
			}
		case IWL_UCODE_TLV_FW_DBG_DUMP_LST: {
			if (tlv_len != sizeof(u32)) {
				IWL_ERR(drv,
					"dbg lst mask size incorrect, skip\n");
				break;
			}

			drv->fw.dbg.dump_mask =
				le32_to_cpup((__le32 *)tlv_data);
			break;
			}
		case IWL_UCODE_TLV_SEC_RT_USNIFFER:
			*usniffer_images = true;
			iwl_store_ucode_sec(pieces, tlv_data,
					    IWL_UCODE_REGULAR_USNIFFER,
					    tlv_len);
			break;
		case IWL_UCODE_TLV_PAGING:
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			paging_mem_size = le32_to_cpup((__le32 *)tlv_data);

			IWL_DEBUG_FW(drv,
				     "Paging: paging enabled (size = %u bytes)\n",
				     paging_mem_size);

			if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
				IWL_ERR(drv,
					"Paging: driver supports up to %lu bytes for paging image\n",
					MAX_PAGING_IMAGE_SIZE);
				return -EINVAL;
			}

			if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
				IWL_ERR(drv,
					"Paging: image isn't multiple %lu\n",
					FW_PAGING_SIZE);
				return -EINVAL;
			}

			drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
				paging_mem_size;
			usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
			drv->fw.img[usniffer_img].paging_mem_size =
				paging_mem_size;
			break;
		case IWL_UCODE_TLV_FW_GSCAN_CAPA:
			/* ignored */
			break;
		case IWL_UCODE_TLV_FW_MEM_SEG: {
			struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
				(void *)tlv_data;
			size_t size;
			struct iwl_fw_dbg_mem_seg_tlv *n;

			if (tlv_len != (sizeof(*dbg_mem)))
				goto invalid_tlv_len;

			IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
				       dbg_mem->data_type);

			size = sizeof(*pieces->dbg_mem_tlv) *
			       (pieces->n_mem_tlv + 1);
			n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
			if (!n)
				return -ENOMEM;
			pieces->dbg_mem_tlv = n;
			pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem;
			pieces->n_mem_tlv++;
			break;
			}
		case IWL_UCODE_TLV_IML: {
			drv->fw.iml_len = tlv_len;
			drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL);
			if (!drv->fw.iml)
				return -ENOMEM;
			break;
			}
		case IWL_UCODE_TLV_FW_RECOVERY_INFO: {
			struct {
				__le32 buf_addr;
				__le32 buf_size;
			} *recov_info = (void *)tlv_data;

			if (tlv_len != sizeof(*recov_info))
				goto invalid_tlv_len;
			capa->error_log_addr =
				le32_to_cpu(recov_info->buf_addr);
			capa->error_log_size =
				le32_to_cpu(recov_info->buf_size);
			}
			break;
		case IWL_UCODE_TLV_FW_FSEQ_VERSION: {
			struct {
				u8 version[32];
				u8 sha1[20];
			} *fseq_ver = (void *)tlv_data;

			if (tlv_len != sizeof(*fseq_ver))
				goto invalid_tlv_len;
			IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n",
				 fseq_ver->version);
			}
			break;
		case IWL_UCODE_TLV_FW_NUM_STATIONS:
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			if (le32_to_cpup((__le32 *)tlv_data) >
			    IWL_MVM_STATION_COUNT_MAX) {
				IWL_ERR(drv,
					"%d is an invalid number of station\n",
					le32_to_cpup((__le32 *)tlv_data));
				goto tlv_error;
			}
			capa->num_stations =
				le32_to_cpup((__le32 *)tlv_data);
			break;
		case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: {
			struct iwl_umac_debug_addrs *dbg_ptrs =
				(void *)tlv_data;

			if (tlv_len != sizeof(*dbg_ptrs))
				goto invalid_tlv_len;
			if (drv->trans->trans_cfg->device_family <
			    IWL_DEVICE_FAMILY_22000)
				break;
			drv->trans->dbg.umac_error_event_table =
				le32_to_cpu(dbg_ptrs->error_info_addr) &
				~FW_ADDR_CACHE_CONTROL;
			drv->trans->dbg.error_event_table_tlv_status |=
				IWL_ERROR_EVENT_TABLE_UMAC;
			break;
			}
		case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: {
			struct iwl_lmac_debug_addrs *dbg_ptrs =
				(void *)tlv_data;

			if (tlv_len != sizeof(*dbg_ptrs))
				goto invalid_tlv_len;
			if (drv->trans->trans_cfg->device_family <
			    IWL_DEVICE_FAMILY_22000)
				break;
			drv->trans->dbg.lmac_error_event_table[0] =
				le32_to_cpu(dbg_ptrs->error_event_table_ptr) &
				~FW_ADDR_CACHE_CONTROL;
			drv->trans->dbg.error_event_table_tlv_status |=
				IWL_ERROR_EVENT_TABLE_LMAC1;
			break;
			}
		case IWL_UCODE_TLV_TYPE_REGIONS:
			iwl_parse_dbg_tlv_assert_tables(drv, tlv);
			fallthrough;
		case IWL_UCODE_TLV_TYPE_DEBUG_INFO:
		case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
		case IWL_UCODE_TLV_TYPE_HCMD:
		case IWL_UCODE_TLV_TYPE_TRIGGERS:
		case IWL_UCODE_TLV_TYPE_CONF_SET:
			if (iwlwifi_mod_params.enable_ini)
				iwl_dbg_tlv_alloc(drv->trans, tlv, false);
			break;
		case IWL_UCODE_TLV_CMD_VERSIONS:
			if (tlv_len % sizeof(struct iwl_fw_cmd_version)) {
				IWL_ERR(drv,
					"Invalid length for command versions: %u\n",
					tlv_len);
				tlv_len /= sizeof(struct iwl_fw_cmd_version);
				tlv_len *= sizeof(struct iwl_fw_cmd_version);
			}
			if (WARN_ON(capa->cmd_versions))
				return -EINVAL;
			capa->cmd_versions = kmemdup(tlv_data, tlv_len,
						     GFP_KERNEL);
			if (!capa->cmd_versions)
				return -ENOMEM;
			capa->n_cmd_versions =
				tlv_len / sizeof(struct iwl_fw_cmd_version);
			break;
		case IWL_UCODE_TLV_PHY_INTEGRATION_VERSION:
			if (drv->fw.phy_integration_ver) {
				IWL_ERR(drv,
					"phy integration str ignored, already exists\n");
				break;
			}

			drv->fw.phy_integration_ver =
				kmemdup(tlv_data, tlv_len, GFP_KERNEL);
			if (!drv->fw.phy_integration_ver)
				return -ENOMEM;
			drv->fw.phy_integration_ver_len = tlv_len;
			break;
		case IWL_UCODE_TLV_SEC_TABLE_ADDR:
		case IWL_UCODE_TLV_D3_KEK_KCK_ADDR:
			iwl_drv_set_dump_exclude(drv, tlv_type,
						 tlv_data, tlv_len);
			break;
		default:
			IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
			break;
		}
	}

	if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
	    usniffer_req && !*usniffer_images) {
		IWL_ERR(drv,
			"user selected to work with usniffer but usniffer image isn't available in ucode package\n");
		return -EINVAL;
	}

	if (len) {
		IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
		iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
		return -EINVAL;
	}

	return 0;

 invalid_tlv_len:
	IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
 tlv_error:
	iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);

	return -EINVAL;
}

static int iwl_alloc_ucode(struct iwl_drv *drv,
			   struct iwl_firmware_pieces *pieces,
			   enum iwl_ucode_type type)
{
	int i;
	struct fw_desc *sec;

	sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
	if (!sec)
		return -ENOMEM;
	drv->fw.img[type].sec = sec;
	drv->fw.img[type].num_sec = pieces->img[type].sec_counter;

	for (i = 0; i < pieces->img[type].sec_counter; i++)
		if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
			return -ENOMEM;

	return 0;
}

static int validate_sec_sizes(struct iwl_drv *drv,
			      struct iwl_firmware_pieces *pieces,
			      const struct iwl_cfg *cfg)
{
	IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
		get_sec_size(pieces, IWL_UCODE_REGULAR,
			     IWL_UCODE_SECTION_INST));
	IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
		get_sec_size(pieces, IWL_UCODE_REGULAR,
			     IWL_UCODE_SECTION_DATA));
	IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
		get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
	IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
		get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));

	/* Verify that uCode images will fit in card's SRAM. */
	if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
	    cfg->max_inst_size) {
		IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
			get_sec_size(pieces, IWL_UCODE_REGULAR,
				     IWL_UCODE_SECTION_INST));
		return -1;
	}

	if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
	    cfg->max_data_size) {
		IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
			get_sec_size(pieces, IWL_UCODE_REGULAR,
				     IWL_UCODE_SECTION_DATA));
		return -1;
	}

	if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
	     cfg->max_inst_size) {
		IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
			get_sec_size(pieces, IWL_UCODE_INIT,
				     IWL_UCODE_SECTION_INST));
		return -1;
	}

	if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
	    cfg->max_data_size) {
		IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
			get_sec_size(pieces, IWL_UCODE_REGULAR,
				     IWL_UCODE_SECTION_DATA));
		return -1;
	}
	return 0;
}

static struct iwl_op_mode *
_iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
{
	const struct iwl_op_mode_ops *ops = op->ops;
	struct dentry *dbgfs_dir = NULL;
	struct iwl_op_mode *op_mode = NULL;
	int retry, max_retry = !!iwlwifi_mod_params.fw_restart * IWL_MAX_INIT_RETRY;

	for (retry = 0; retry <= max_retry; retry++) {

#ifdef CONFIG_IWLWIFI_DEBUGFS
		drv->dbgfs_op_mode = debugfs_create_dir(op->name,
							drv->dbgfs_drv);
		dbgfs_dir = drv->dbgfs_op_mode;
#endif

		op_mode = ops->start(drv->trans, drv->trans->cfg,
				     &drv->fw, dbgfs_dir);

		if (op_mode)
			return op_mode;

		IWL_ERR(drv, "retry init count %d\n", retry);

#ifdef CONFIG_IWLWIFI_DEBUGFS
		debugfs_remove_recursive(drv->dbgfs_op_mode);
		drv->dbgfs_op_mode = NULL;
#endif
	}

	return NULL;
}

static void _iwl_op_mode_stop(struct iwl_drv *drv)
{
	/* op_mode can be NULL if its start failed */
	if (drv->op_mode) {
		iwl_op_mode_stop(drv->op_mode);
		drv->op_mode = NULL;

#ifdef CONFIG_IWLWIFI_DEBUGFS
		debugfs_remove_recursive(drv->dbgfs_op_mode);
		drv->dbgfs_op_mode = NULL;
#endif
	}
}

/*
 * iwl_req_fw_callback - callback when firmware was loaded
 *
 * If loaded successfully, copies the firmware into buffers
 * for the card to fetch (via DMA).
 */
static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
{
	struct iwl_drv *drv = context;
	struct iwl_fw *fw = &drv->fw;
	struct iwl_ucode_header *ucode;
	struct iwlwifi_opmode_table *op;
	int err;
	struct iwl_firmware_pieces *pieces;
	const unsigned int api_max = drv->trans->cfg->ucode_api_max;
	const unsigned int api_min = drv->trans->cfg->ucode_api_min;
	size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
	u32 api_ver;
	int i;
	bool load_module = false;
	bool usniffer_images = false;
	bool failure = true;

	fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
	fw->ucode_capa.standard_phy_calibration_size =
			IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
	fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
	fw->ucode_capa.num_stations = IWL_MVM_STATION_COUNT_MAX;
	/* dump all fw memory areas by default */
	fw->dbg.dump_mask = 0xffffffff;

	pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
	if (!pieces)
		goto out_free_fw;

	if (!ucode_raw)
		goto try_again;

	IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
			  drv->firmware_name, ucode_raw->size);

	/* Make sure that we got at least the API version number */
	if (ucode_raw->size < 4) {
		IWL_ERR(drv, "File size way too small!\n");
		goto try_again;
	}

	/* Data from ucode file:  header followed by uCode images */
	ucode = (struct iwl_ucode_header *)ucode_raw->data;

	if (ucode->ver)
		err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
	else
		err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
					     &fw->ucode_capa, &usniffer_images);

	if (err)
		goto try_again;

	if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
		api_ver = drv->fw.ucode_ver;
	else
		api_ver = IWL_UCODE_API(drv->fw.ucode_ver);

	/*
	 * api_ver should match the api version forming part of the
	 * firmware filename ... but we don't check for that and only rely
	 * on the API version read from firmware header from here on forward
	 */
	if (api_ver < api_min || api_ver > api_max) {
		IWL_ERR(drv,
			"Driver unable to support your firmware API. "
			"Driver supports v%u, firmware is v%u.\n",
			api_max, api_ver);
		goto try_again;
	}

	/*
	 * In mvm uCode there is no difference between data and instructions
	 * sections.
	 */
	if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
							 drv->trans->cfg))
		goto try_again;

	/* Allocate ucode buffers for card's bus-master loading ... */

	/* Runtime instructions and 2 copies of data:
	 * 1) unmodified from disk
	 * 2) backup cache for save/restore during power-downs
	 */
	for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
		if (iwl_alloc_ucode(drv, pieces, i))
			goto out_free_fw;

	if (pieces->dbg_dest_tlv_init) {
		size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) +
			sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
			drv->fw.dbg.n_dest_reg;

		drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);

		if (!drv->fw.dbg.dest_tlv)
			goto out_free_fw;

		if (*pieces->dbg_dest_ver == 0) {
			memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1,
			       dbg_dest_size);
		} else {
			struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
				drv->fw.dbg.dest_tlv;

			dest_tlv->version = pieces->dbg_dest_tlv->version;
			dest_tlv->monitor_mode =
				pieces->dbg_dest_tlv->monitor_mode;
			dest_tlv->size_power =
				pieces->dbg_dest_tlv->size_power;
			dest_tlv->wrap_count =
				pieces->dbg_dest_tlv->wrap_count;
			dest_tlv->write_ptr_reg =
				pieces->dbg_dest_tlv->write_ptr_reg;
			dest_tlv->base_shift =
				pieces->dbg_dest_tlv->base_shift;
			memcpy(dest_tlv->reg_ops,
			       pieces->dbg_dest_tlv->reg_ops,
			       sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
			       drv->fw.dbg.n_dest_reg);

			/* In version 1 of the destination tlv, which is
			 * relevant for internal buffer exclusively,
			 * the base address is part of given with the length
			 * of the buffer, and the size shift is give instead of
			 * end shift. We now store these values in base_reg,
			 * and end shift, and when dumping the data we'll
			 * manipulate it for extracting both the length and
			 * base address */
			dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
			dest_tlv->end_shift =
				pieces->dbg_dest_tlv->size_shift;
		}
	}

	for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) {
		if (pieces->dbg_conf_tlv[i]) {
			drv->fw.dbg.conf_tlv[i] =
				kmemdup(pieces->dbg_conf_tlv[i],
					pieces->dbg_conf_tlv_len[i],
					GFP_KERNEL);
			if (!drv->fw.dbg.conf_tlv[i])
				goto out_free_fw;
		}
	}

	memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));

	trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
		sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
	trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
	trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
		sizeof(struct iwl_fw_dbg_trigger_cmd);
	trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
		sizeof(struct iwl_fw_dbg_trigger_mlme);
	trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
		sizeof(struct iwl_fw_dbg_trigger_stats);
	trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
		sizeof(struct iwl_fw_dbg_trigger_low_rssi);
	trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
		sizeof(struct iwl_fw_dbg_trigger_txq_timer);
	trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
		sizeof(struct iwl_fw_dbg_trigger_time_event);
	trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
		sizeof(struct iwl_fw_dbg_trigger_ba);
	trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
		sizeof(struct iwl_fw_dbg_trigger_tdls);

	for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) {
		if (pieces->dbg_trigger_tlv[i]) {
			/*
			 * If the trigger isn't long enough, WARN and exit.
			 * Someone is trying to debug something and he won't
			 * be able to catch the bug he is trying to chase.
			 * We'd better be noisy to be sure he knows what's
			 * going on.
			 */
			if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
				    (trigger_tlv_sz[i] +
				     sizeof(struct iwl_fw_dbg_trigger_tlv))))
				goto out_free_fw;
			drv->fw.dbg.trigger_tlv_len[i] =
				pieces->dbg_trigger_tlv_len[i];
			drv->fw.dbg.trigger_tlv[i] =
				kmemdup(pieces->dbg_trigger_tlv[i],
					drv->fw.dbg.trigger_tlv_len[i],
					GFP_KERNEL);
			if (!drv->fw.dbg.trigger_tlv[i])
				goto out_free_fw;
		}
	}

	/* Now that we can no longer fail, copy information */

	drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv;
	pieces->dbg_mem_tlv = NULL;
	drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv;

	/*
	 * The (size - 16) / 12 formula is based on the information recorded
	 * for each event, which is of mode 1 (including timestamp) for all
	 * new microcodes that include this information.
	 */
	fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
	if (pieces->init_evtlog_size)
		fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
	else
		fw->init_evtlog_size =
			drv->trans->trans_cfg->base_params->max_event_log_size;
	fw->init_errlog_ptr = pieces->init_errlog_ptr;
	fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
	if (pieces->inst_evtlog_size)
		fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
	else
		fw->inst_evtlog_size =
			drv->trans->trans_cfg->base_params->max_event_log_size;
	fw->inst_errlog_ptr = pieces->inst_errlog_ptr;

	/*
	 * figure out the offset of chain noise reset and gain commands
	 * base on the size of standard phy calibration commands table size
	 */
	if (fw->ucode_capa.standard_phy_calibration_size >
	    IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
		fw->ucode_capa.standard_phy_calibration_size =
			IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;

	/* We have our copies now, allow OS release its copies */
	release_firmware(ucode_raw);

	mutex_lock(&iwlwifi_opmode_table_mtx);
	switch (fw->type) {
	case IWL_FW_DVM:
		op = &iwlwifi_opmode_table[DVM_OP_MODE];
		break;
	default:
		WARN(1, "Invalid fw type %d\n", fw->type);
		fallthrough;
	case IWL_FW_MVM:
		op = &iwlwifi_opmode_table[MVM_OP_MODE];
		break;
	}

	IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
		 drv->fw.fw_version, op->name);

	iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans);

	/* add this device to the list of devices using this op_mode */
	list_add_tail(&drv->list, &op->drv);

	if (op->ops) {
		drv->op_mode = _iwl_op_mode_start(drv, op);

		if (!drv->op_mode) {
			mutex_unlock(&iwlwifi_opmode_table_mtx);
			goto out_unbind;
		}
	} else {
		load_module = true;
	}
	mutex_unlock(&iwlwifi_opmode_table_mtx);

	/*
	 * Complete the firmware request last so that
	 * a driver unbind (stop) doesn't run while we
	 * are doing the start() above.
	 */
	complete(&drv->request_firmware_complete);

	/*
	 * Load the module last so we don't block anything
	 * else from proceeding if the module fails to load
	 * or hangs loading.
	 */
	if (load_module)
		request_module("%s", op->name);
	failure = false;
	goto free;

 try_again:
	/* try next, if any */
	release_firmware(ucode_raw);
	if (iwl_request_firmware(drv, false))
		goto out_unbind;
	goto free;

 out_free_fw:
	release_firmware(ucode_raw);
 out_unbind:
	complete(&drv->request_firmware_complete);
	device_release_driver(drv->trans->dev);
	/* drv has just been freed by the release */
	failure = false;
 free:
	if (failure)
		iwl_dealloc_ucode(drv);

	if (pieces) {
		for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
			kfree(pieces->img[i].sec);
		kfree(pieces->dbg_mem_tlv);
		kfree(pieces);
	}
}

struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
{
	struct iwl_drv *drv;
	int ret;

	drv = kzalloc(sizeof(*drv), GFP_KERNEL);
	if (!drv) {
		ret = -ENOMEM;
		goto err;
	}

	drv->trans = trans;
	drv->dev = trans->dev;

	init_completion(&drv->request_firmware_complete);
	INIT_LIST_HEAD(&drv->list);

#ifdef CONFIG_IWLWIFI_DEBUGFS
	/* Create the device debugfs entries. */
	drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
					    iwl_dbgfs_root);

	/* Create transport layer debugfs dir */
	drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
#endif

	drv->trans->dbg.domains_bitmap = IWL_TRANS_FW_DBG_DOMAIN(drv->trans);

	ret = iwl_request_firmware(drv, true);
	if (ret) {
		IWL_ERR(trans, "Couldn't request the fw\n");
		goto err_fw;
	}

	return drv;

err_fw:
#ifdef CONFIG_IWLWIFI_DEBUGFS
	debugfs_remove_recursive(drv->dbgfs_drv);
	iwl_dbg_tlv_free(drv->trans);
#endif
	kfree(drv);
err:
	return ERR_PTR(ret);
}

void iwl_drv_stop(struct iwl_drv *drv)
{
	wait_for_completion(&drv->request_firmware_complete);

	_iwl_op_mode_stop(drv);

	iwl_dealloc_ucode(drv);

	mutex_lock(&iwlwifi_opmode_table_mtx);
	/*
	 * List is empty (this item wasn't added)
	 * when firmware loading failed -- in that
	 * case we can't remove it from any list.
	 */
	if (!list_empty(&drv->list))
		list_del(&drv->list);
	mutex_unlock(&iwlwifi_opmode_table_mtx);

#ifdef CONFIG_IWLWIFI_DEBUGFS
	drv->trans->ops->debugfs_cleanup(drv->trans);

	debugfs_remove_recursive(drv->dbgfs_drv);
#endif

	iwl_dbg_tlv_free(drv->trans);

	kfree(drv);
}


/* shared module parameters */
struct iwl_mod_params iwlwifi_mod_params = {
	.fw_restart = true,
	.bt_coex_active = true,
	.power_level = IWL_POWER_INDEX_1,
	.uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
	.enable_ini = true,
	/* the rest are 0 by default */
};
IWL_EXPORT_SYMBOL(iwlwifi_mod_params);

int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
{
	int i;
	struct iwl_drv *drv;
	struct iwlwifi_opmode_table *op;

	mutex_lock(&iwlwifi_opmode_table_mtx);
	for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
		op = &iwlwifi_opmode_table[i];
		if (strcmp(op->name, name))
			continue;
		op->ops = ops;
		/* TODO: need to handle exceptional case */
		list_for_each_entry(drv, &op->drv, list)
			drv->op_mode = _iwl_op_mode_start(drv, op);

		mutex_unlock(&iwlwifi_opmode_table_mtx);
		return 0;
	}
	mutex_unlock(&iwlwifi_opmode_table_mtx);
	return -EIO;
}
IWL_EXPORT_SYMBOL(iwl_opmode_register);

void iwl_opmode_deregister(const char *name)
{
	int i;
	struct iwl_drv *drv;

	mutex_lock(&iwlwifi_opmode_table_mtx);
	for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
		if (strcmp(iwlwifi_opmode_table[i].name, name))
			continue;
		iwlwifi_opmode_table[i].ops = NULL;

		/* call the stop routine for all devices */
		list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
			_iwl_op_mode_stop(drv);

		mutex_unlock(&iwlwifi_opmode_table_mtx);
		return;
	}
	mutex_unlock(&iwlwifi_opmode_table_mtx);
}
IWL_EXPORT_SYMBOL(iwl_opmode_deregister);

static int __init iwl_drv_init(void)
{
	int i, err;

	for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
		INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);

	pr_info(DRV_DESCRIPTION "\n");

#ifdef CONFIG_IWLWIFI_DEBUGFS
	/* Create the root of iwlwifi debugfs subsystem. */
	iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
#endif

	err = iwl_pci_register_driver();
	if (err)
		goto cleanup_debugfs;

	return 0;

cleanup_debugfs:
#ifdef CONFIG_IWLWIFI_DEBUGFS
	debugfs_remove_recursive(iwl_dbgfs_root);
#endif
	return err;
}
module_init(iwl_drv_init);

static void __exit iwl_drv_exit(void)
{
	iwl_pci_unregister_driver();

#ifdef CONFIG_IWLWIFI_DEBUGFS
	debugfs_remove_recursive(iwl_dbgfs_root);
#endif
}
module_exit(iwl_drv_exit);

#ifdef CONFIG_IWLWIFI_DEBUG
module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
MODULE_PARM_DESC(debug, "debug output mask");
#endif

module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
MODULE_PARM_DESC(11n_disable,
	"disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
MODULE_PARM_DESC(amsdu_size,
		 "amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, "
		 "4K for other devices 1:4K 2:8K 3:12K (16K buffers) 4: 2K (default 0)");
module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");

module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
MODULE_PARM_DESC(nvm_file, "NVM file name");

module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
MODULE_PARM_DESC(uapsd_disable,
		 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
module_param_named(enable_ini, iwlwifi_mod_params.enable_ini,
		   bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(enable_ini,
		 "Enable debug INI TLV FW debug infrastructure (default: true");

/*
 * set bt_coex_active to true, uCode will do kill/defer
 * every time the priority line is asserted (BT is sending signals on the
 * priority line in the PCIx).
 * set bt_coex_active to false, uCode will ignore the BT activity and
 * perform the normal operation
 *
 * User might experience transmit issue on some platform due to WiFi/BT
 * co-exist problem. The possible behaviors are:
 *   Able to scan and finding all the available AP
 *   Not able to associate with any AP
 * On those platforms, WiFi communication can be restored by set
 * "bt_coex_active" module parameter to "false"
 *
 * default: bt_coex_active = true (BT_COEX_ENABLE)
 */
module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
		   bool, 0444);
MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");

module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
MODULE_PARM_DESC(led_mode, "0=system default, "
		"1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");

module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
MODULE_PARM_DESC(power_save,
		 "enable WiFi power management (default: disable)");

module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
MODULE_PARM_DESC(power_level,
		 "default power save level (range from 1 - 5, default: 1)");

module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");

module_param_named(remove_when_gone,
		   iwlwifi_mod_params.remove_when_gone, bool,
		   0444);
MODULE_PARM_DESC(remove_when_gone,
		 "Remove dev from PCIe bus if it is deemed inaccessible (default: false)");

module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool,
		   S_IRUGO);
MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)");