summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/orinoco/main.c
blob: 345593c4accbe3c2f007acd9836e66a9ff8375e0 (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
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
/* main.c - (formerly known as dldwd_cs.c, orinoco_cs.c and orinoco.c)
 *
 * A driver for Hermes or Prism 2 chipset based PCMCIA wireless
 * adaptors, with Lucent/Agere, Intersil or Symbol firmware.
 *
 * Current maintainers (as of 29 September 2003) are:
 * 	Pavel Roskin <proski AT gnu.org>
 * and	David Gibson <hermes AT gibson.dropbear.id.au>
 *
 * (C) Copyright David Gibson, IBM Corporation 2001-2003.
 * Copyright (C) 2000 David Gibson, Linuxcare Australia.
 *	With some help from :
 * Copyright (C) 2001 Jean Tourrilhes, HP Labs
 * Copyright (C) 2001 Benjamin Herrenschmidt
 *
 * Based on dummy_cs.c 1.27 2000/06/12 21:27:25
 *
 * Portions based on wvlan_cs.c 1.0.6, Copyright Andreas Neuhaus <andy
 * AT fasta.fh-dortmund.de>
 *      http://www.stud.fh-dortmund.de/~andy/wvlan/
 *
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.1 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License
 * at http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 * the License for the specific language governing rights and
 * limitations under the License.
 *
 * The initial developer of the original code is David A. Hinds
 * <dahinds AT users.sourceforge.net>.  Portions created by David
 * A. Hinds are Copyright (C) 1999 David A. Hinds.  All Rights
 * Reserved.
 *
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License version 2 (the "GPL"), in
 * which case the provisions of the GPL are applicable instead of the
 * above.  If you wish to allow the use of your version of this file
 * only under the terms of the GPL and not to allow others to use your
 * version of this file under the MPL, indicate your decision by
 * deleting the provisions above and replace them with the notice and
 * other provisions required by the GPL.  If you do not delete the
 * provisions above, a recipient may use your version of this file
 * under either the MPL or the GPL.  */

/*
 * TODO
 *	o Handle de-encapsulation within network layer, provide 802.11
 *	  headers (patch from Thomas 'Dent' Mirlacher)
 *	o Fix possible races in SPY handling.
 *	o Disconnect wireless extensions from fundamental configuration.
 *	o (maybe) Software WEP support (patch from Stano Meduna).
 *	o (maybe) Use multiple Tx buffers - driver handling queue
 *	  rather than firmware.
 */

/* Locking and synchronization:
 *
 * The basic principle is that everything is serialized through a
 * single spinlock, priv->lock.  The lock is used in user, bh and irq
 * context, so when taken outside hardirq context it should always be
 * taken with interrupts disabled.  The lock protects both the
 * hardware and the struct orinoco_private.
 *
 * Another flag, priv->hw_unavailable indicates that the hardware is
 * unavailable for an extended period of time (e.g. suspended, or in
 * the middle of a hard reset).  This flag is protected by the
 * spinlock.  All code which touches the hardware should check the
 * flag after taking the lock, and if it is set, give up on whatever
 * they are doing and drop the lock again.  The orinoco_lock()
 * function handles this (it unlocks and returns -EBUSY if
 * hw_unavailable is non-zero).
 */

#define DRIVER_NAME "orinoco"

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/suspend.h>
#include <linux/if_arp.h>
#include <linux/wireless.h>
#include <linux/ieee80211.h>
#include <net/iw_handler.h>

#include "hermes_rid.h"
#include "hermes_dld.h"
#include "hw.h"
#include "scan.h"
#include "mic.h"
#include "fw.h"
#include "wext.h"
#include "main.h"

#include "orinoco.h"

/********************************************************************/
/* Module information                                               */
/********************************************************************/

MODULE_AUTHOR("Pavel Roskin <proski@gnu.org> & "
	      "David Gibson <hermes@gibson.dropbear.id.au>");
MODULE_DESCRIPTION("Driver for Lucent Orinoco, Prism II based "
		   "and similar wireless cards");
MODULE_LICENSE("Dual MPL/GPL");

/* Level of debugging. Used in the macros in orinoco.h */
#ifdef ORINOCO_DEBUG
int orinoco_debug = ORINOCO_DEBUG;
EXPORT_SYMBOL(orinoco_debug);
module_param(orinoco_debug, int, 0644);
MODULE_PARM_DESC(orinoco_debug, "Debug level");
#endif

static int suppress_linkstatus; /* = 0 */
module_param(suppress_linkstatus, bool, 0644);
MODULE_PARM_DESC(suppress_linkstatus, "Don't log link status changes");

static int ignore_disconnect; /* = 0 */
module_param(ignore_disconnect, int, 0644);
MODULE_PARM_DESC(ignore_disconnect,
		 "Don't report lost link to the network layer");

int force_monitor; /* = 0 */
module_param(force_monitor, int, 0644);
MODULE_PARM_DESC(force_monitor, "Allow monitor mode for all firmware versions");

/********************************************************************/
/* Internal constants                                               */
/********************************************************************/

/* 802.2 LLC/SNAP header used for Ethernet encapsulation over 802.11 */
static const u8 encaps_hdr[] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00};
#define ENCAPS_OVERHEAD		(sizeof(encaps_hdr) + 2)

#define ORINOCO_MIN_MTU		256
#define ORINOCO_MAX_MTU		(IEEE80211_MAX_DATA_LEN - ENCAPS_OVERHEAD)

#define SYMBOL_MAX_VER_LEN	(14)
#define MAX_IRQLOOPS_PER_IRQ	10
#define MAX_IRQLOOPS_PER_JIFFY	(20000/HZ) /* Based on a guestimate of
					    * how many events the
					    * device could
					    * legitimately generate */
#define TX_NICBUF_SIZE_BUG	1585		/* Bug in Symbol firmware */

#define DUMMY_FID		0xFFFF

/*#define MAX_MULTICAST(priv)	(priv->firmware_type == FIRMWARE_TYPE_AGERE ? \
  HERMES_MAX_MULTICAST : 0)*/
#define MAX_MULTICAST(priv)	(HERMES_MAX_MULTICAST)

#define ORINOCO_INTEN	 	(HERMES_EV_RX | HERMES_EV_ALLOC \
				 | HERMES_EV_TX | HERMES_EV_TXEXC \
				 | HERMES_EV_WTERR | HERMES_EV_INFO \
				 | HERMES_EV_INFDROP)

static const struct ethtool_ops orinoco_ethtool_ops;

/********************************************************************/
/* Data types                                                       */
/********************************************************************/

/* Beginning of the Tx descriptor, used in TxExc handling */
struct hermes_txexc_data {
	struct hermes_tx_descriptor desc;
	__le16 frame_ctl;
	__le16 duration_id;
	u8 addr1[ETH_ALEN];
} __attribute__ ((packed));

/* Rx frame header except compatibility 802.3 header */
struct hermes_rx_descriptor {
	/* Control */
	__le16 status;
	__le32 time;
	u8 silence;
	u8 signal;
	u8 rate;
	u8 rxflow;
	__le32 reserved;

	/* 802.11 header */
	__le16 frame_ctl;
	__le16 duration_id;
	u8 addr1[ETH_ALEN];
	u8 addr2[ETH_ALEN];
	u8 addr3[ETH_ALEN];
	__le16 seq_ctl;
	u8 addr4[ETH_ALEN];

	/* Data length */
	__le16 data_len;
} __attribute__ ((packed));

struct orinoco_rx_data {
	struct hermes_rx_descriptor *desc;
	struct sk_buff *skb;
	struct list_head list;
};

/********************************************************************/
/* Function prototypes                                              */
/********************************************************************/

static void __orinoco_set_multicast_list(struct net_device *dev);

/********************************************************************/
/* Internal helper functions                                        */
/********************************************************************/

void set_port_type(struct orinoco_private *priv)
{
	switch (priv->iw_mode) {
	case IW_MODE_INFRA:
		priv->port_type = 1;
		priv->createibss = 0;
		break;
	case IW_MODE_ADHOC:
		if (priv->prefer_port3) {
			priv->port_type = 3;
			priv->createibss = 0;
		} else {
			priv->port_type = priv->ibss_port;
			priv->createibss = 1;
		}
		break;
	case IW_MODE_MONITOR:
		priv->port_type = 3;
		priv->createibss = 0;
		break;
	default:
		printk(KERN_ERR "%s: Invalid priv->iw_mode in set_port_type()\n",
		       priv->ndev->name);
	}
}

/********************************************************************/
/* Device methods                                                   */
/********************************************************************/

static int orinoco_open(struct net_device *dev)
{
	struct orinoco_private *priv = netdev_priv(dev);
	unsigned long flags;
	int err;

	if (orinoco_lock(priv, &flags) != 0)
		return -EBUSY;

	err = __orinoco_up(dev);

	if (!err)
		priv->open = 1;

	orinoco_unlock(priv, &flags);

	return err;
}

static int orinoco_stop(struct net_device *dev)
{
	struct orinoco_private *priv = netdev_priv(dev);
	int err = 0;

	/* We mustn't use orinoco_lock() here, because we need to be
	   able to close the interface even if hw_unavailable is set
	   (e.g. as we're released after a PC Card removal) */
	spin_lock_irq(&priv->lock);

	priv->open = 0;

	err = __orinoco_down(dev);

	spin_unlock_irq(&priv->lock);

	return err;
}

static struct net_device_stats *orinoco_get_stats(struct net_device *dev)
{
	struct orinoco_private *priv = netdev_priv(dev);

	return &priv->stats;
}

static void orinoco_set_multicast_list(struct net_device *dev)
{
	struct orinoco_private *priv = netdev_priv(dev);
	unsigned long flags;

	if (orinoco_lock(priv, &flags) != 0) {
		printk(KERN_DEBUG "%s: orinoco_set_multicast_list() "
		       "called when hw_unavailable\n", dev->name);
		return;
	}

	__orinoco_set_multicast_list(dev);
	orinoco_unlock(priv, &flags);
}

static int orinoco_change_mtu(struct net_device *dev, int new_mtu)
{
	struct orinoco_private *priv = netdev_priv(dev);

	if ((new_mtu < ORINOCO_MIN_MTU) || (new_mtu > ORINOCO_MAX_MTU))
		return -EINVAL;

	/* MTU + encapsulation + header length */
	if ((new_mtu + ENCAPS_OVERHEAD + sizeof(struct ieee80211_hdr)) >
	     (priv->nicbuf_size - ETH_HLEN))
		return -EINVAL;

	dev->mtu = new_mtu;

	return 0;
}

/********************************************************************/
/* Tx path                                                          */
/********************************************************************/

static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev)
{
	struct orinoco_private *priv = netdev_priv(dev);
	struct net_device_stats *stats = &priv->stats;
	hermes_t *hw = &priv->hw;
	int err = 0;
	u16 txfid = priv->txfid;
	struct ethhdr *eh;
	int tx_control;
	unsigned long flags;

	if (!netif_running(dev)) {
		printk(KERN_ERR "%s: Tx on stopped device!\n",
		       dev->name);
		return NETDEV_TX_BUSY;
	}

	if (netif_queue_stopped(dev)) {
		printk(KERN_DEBUG "%s: Tx while transmitter busy!\n",
		       dev->name);
		return NETDEV_TX_BUSY;
	}

	if (orinoco_lock(priv, &flags) != 0) {
		printk(KERN_ERR "%s: orinoco_xmit() called while hw_unavailable\n",
		       dev->name);
		return NETDEV_TX_BUSY;
	}

	if (!netif_carrier_ok(dev) || (priv->iw_mode == IW_MODE_MONITOR)) {
		/* Oops, the firmware hasn't established a connection,
		   silently drop the packet (this seems to be the
		   safest approach). */
		goto drop;
	}

	/* Check packet length */
	if (skb->len < ETH_HLEN)
		goto drop;

	tx_control = HERMES_TXCTRL_TX_OK | HERMES_TXCTRL_TX_EX;

	if (priv->encode_alg == IW_ENCODE_ALG_TKIP)
		tx_control |= (priv->tx_key << HERMES_MIC_KEY_ID_SHIFT) |
			HERMES_TXCTRL_MIC;

	if (priv->has_alt_txcntl) {
		/* WPA enabled firmwares have tx_cntl at the end of
		 * the 802.11 header.  So write zeroed descriptor and
		 * 802.11 header at the same time
		 */
		char desc[HERMES_802_3_OFFSET];
		__le16 *txcntl = (__le16 *) &desc[HERMES_TXCNTL2_OFFSET];

		memset(&desc, 0, sizeof(desc));

		*txcntl = cpu_to_le16(tx_control);
		err = hermes_bap_pwrite(hw, USER_BAP, &desc, sizeof(desc),
					txfid, 0);
		if (err) {
			if (net_ratelimit())
				printk(KERN_ERR "%s: Error %d writing Tx "
				       "descriptor to BAP\n", dev->name, err);
			goto busy;
		}
	} else {
		struct hermes_tx_descriptor desc;

		memset(&desc, 0, sizeof(desc));

		desc.tx_control = cpu_to_le16(tx_control);
		err = hermes_bap_pwrite(hw, USER_BAP, &desc, sizeof(desc),
					txfid, 0);
		if (err) {
			if (net_ratelimit())
				printk(KERN_ERR "%s: Error %d writing Tx "
				       "descriptor to BAP\n", dev->name, err);
			goto busy;
		}

		/* Clear the 802.11 header and data length fields - some
		 * firmwares (e.g. Lucent/Agere 8.xx) appear to get confused
		 * if this isn't done. */
		hermes_clear_words(hw, HERMES_DATA0,
				   HERMES_802_3_OFFSET - HERMES_802_11_OFFSET);
	}

	eh = (struct ethhdr *)skb->data;

	/* Encapsulate Ethernet-II frames */
	if (ntohs(eh->h_proto) > ETH_DATA_LEN) { /* Ethernet-II frame */
		struct header_struct {
			struct ethhdr eth;	/* 802.3 header */
			u8 encap[6];		/* 802.2 header */
		} __attribute__ ((packed)) hdr;

		/* Strip destination and source from the data */
		skb_pull(skb, 2 * ETH_ALEN);

		/* And move them to a separate header */
		memcpy(&hdr.eth, eh, 2 * ETH_ALEN);
		hdr.eth.h_proto = htons(sizeof(encaps_hdr) + skb->len);
		memcpy(hdr.encap, encaps_hdr, sizeof(encaps_hdr));

		/* Insert the SNAP header */
		if (skb_headroom(skb) < sizeof(hdr)) {
			printk(KERN_ERR
			       "%s: Not enough headroom for 802.2 headers %d\n",
			       dev->name, skb_headroom(skb));
			goto drop;
		}
		eh = (struct ethhdr *) skb_push(skb, sizeof(hdr));
		memcpy(eh, &hdr, sizeof(hdr));
	}

	err = hermes_bap_pwrite(hw, USER_BAP, skb->data, skb->len,
				txfid, HERMES_802_3_OFFSET);
	if (err) {
		printk(KERN_ERR "%s: Error %d writing packet to BAP\n",
		       dev->name, err);
		goto busy;
	}

	/* Calculate Michael MIC */
	if (priv->encode_alg == IW_ENCODE_ALG_TKIP) {
		u8 mic_buf[MICHAEL_MIC_LEN + 1];
		u8 *mic;
		size_t offset;
		size_t len;

		if (skb->len % 2) {
			/* MIC start is on an odd boundary */
			mic_buf[0] = skb->data[skb->len - 1];
			mic = &mic_buf[1];
			offset = skb->len - 1;
			len = MICHAEL_MIC_LEN + 1;
		} else {
			mic = &mic_buf[0];
			offset = skb->len;
			len = MICHAEL_MIC_LEN;
		}

		orinoco_mic(priv->tx_tfm_mic,
			    priv->tkip_key[priv->tx_key].tx_mic,
			    eh->h_dest, eh->h_source, 0 /* priority */,
			    skb->data + ETH_HLEN, skb->len - ETH_HLEN, mic);

		/* Write the MIC */
		err = hermes_bap_pwrite(hw, USER_BAP, &mic_buf[0], len,
					txfid, HERMES_802_3_OFFSET + offset);
		if (err) {
			printk(KERN_ERR "%s: Error %d writing MIC to BAP\n",
			       dev->name, err);
			goto busy;
		}
	}

	/* Finally, we actually initiate the send */
	netif_stop_queue(dev);

	err = hermes_docmd_wait(hw, HERMES_CMD_TX | HERMES_CMD_RECL,
				txfid, NULL);
	if (err) {
		netif_start_queue(dev);
		if (net_ratelimit())
			printk(KERN_ERR "%s: Error %d transmitting packet\n",
				dev->name, err);
		goto busy;
	}

	dev->trans_start = jiffies;
	stats->tx_bytes += HERMES_802_3_OFFSET + skb->len;
	goto ok;

 drop:
	stats->tx_errors++;
	stats->tx_dropped++;

 ok:
	orinoco_unlock(priv, &flags);
	dev_kfree_skb(skb);
	return NETDEV_TX_OK;

 busy:
	if (err == -EIO)
		schedule_work(&priv->reset_work);
	orinoco_unlock(priv, &flags);
	return NETDEV_TX_BUSY;
}

static void __orinoco_ev_alloc(struct net_device *dev, hermes_t *hw)
{
	struct orinoco_private *priv = netdev_priv(dev);
	u16 fid = hermes_read_regn(hw, ALLOCFID);

	if (fid != priv->txfid) {
		if (fid != DUMMY_FID)
			printk(KERN_WARNING "%s: Allocate event on unexpected fid (%04X)\n",
			       dev->name, fid);
		return;
	}

	hermes_write_regn(hw, ALLOCFID, DUMMY_FID);
}

static void __orinoco_ev_tx(struct net_device *dev, hermes_t *hw)
{
	struct orinoco_private *priv = netdev_priv(dev);
	struct net_device_stats *stats = &priv->stats;

	stats->tx_packets++;

	netif_wake_queue(dev);

	hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
}

static void __orinoco_ev_txexc(struct net_device *dev, hermes_t *hw)
{
	struct orinoco_private *priv = netdev_priv(dev);
	struct net_device_stats *stats = &priv->stats;
	u16 fid = hermes_read_regn(hw, TXCOMPLFID);
	u16 status;
	struct hermes_txexc_data hdr;
	int err = 0;

	if (fid == DUMMY_FID)
		return; /* Nothing's really happened */

	/* Read part of the frame header - we need status and addr1 */
	err = hermes_bap_pread(hw, IRQ_BAP, &hdr,
			       sizeof(struct hermes_txexc_data),
			       fid, 0);

	hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
	stats->tx_errors++;

	if (err) {
		printk(KERN_WARNING "%s: Unable to read descriptor on Tx error "
		       "(FID=%04X error %d)\n",
		       dev->name, fid, err);
		return;
	}

	DEBUG(1, "%s: Tx error, err %d (FID=%04X)\n", dev->name,
	      err, fid);

	/* We produce a TXDROP event only for retry or lifetime
	 * exceeded, because that's the only status that really mean
	 * that this particular node went away.
	 * Other errors means that *we* screwed up. - Jean II */
	status = le16_to_cpu(hdr.desc.status);
	if (status & (HERMES_TXSTAT_RETRYERR | HERMES_TXSTAT_AGEDERR)) {
		union iwreq_data	wrqu;

		/* Copy 802.11 dest address.
		 * We use the 802.11 header because the frame may
		 * not be 802.3 or may be mangled...
		 * In Ad-Hoc mode, it will be the node address.
		 * In managed mode, it will be most likely the AP addr
		 * User space will figure out how to convert it to
		 * whatever it needs (IP address or else).
		 * - Jean II */
		memcpy(wrqu.addr.sa_data, hdr.addr1, ETH_ALEN);
		wrqu.addr.sa_family = ARPHRD_ETHER;

		/* Send event to user space */
		wireless_send_event(dev, IWEVTXDROP, &wrqu, NULL);
	}

	netif_wake_queue(dev);
}

static void orinoco_tx_timeout(struct net_device *dev)
{
	struct orinoco_private *priv = netdev_priv(dev);
	struct net_device_stats *stats = &priv->stats;
	struct hermes *hw = &priv->hw;

	printk(KERN_WARNING "%s: Tx timeout! "
	       "ALLOCFID=%04x, TXCOMPLFID=%04x, EVSTAT=%04x\n",
	       dev->name, hermes_read_regn(hw, ALLOCFID),
	       hermes_read_regn(hw, TXCOMPLFID), hermes_read_regn(hw, EVSTAT));

	stats->tx_errors++;

	schedule_work(&priv->reset_work);
}

/********************************************************************/
/* Rx path (data frames)                                            */
/********************************************************************/

/* Does the frame have a SNAP header indicating it should be
 * de-encapsulated to Ethernet-II? */
static inline int is_ethersnap(void *_hdr)
{
	u8 *hdr = _hdr;

	/* We de-encapsulate all packets which, a) have SNAP headers
	 * (i.e. SSAP=DSAP=0xaa and CTRL=0x3 in the 802.2 LLC header
	 * and where b) the OUI of the SNAP header is 00:00:00 or
	 * 00:00:f8 - we need both because different APs appear to use
	 * different OUIs for some reason */
	return (memcmp(hdr, &encaps_hdr, 5) == 0)
		&& ((hdr[5] == 0x00) || (hdr[5] == 0xf8));
}

static inline void orinoco_spy_gather(struct net_device *dev, u_char *mac,
				      int level, int noise)
{
	struct iw_quality wstats;
	wstats.level = level - 0x95;
	wstats.noise = noise - 0x95;
	wstats.qual = (level > noise) ? (level - noise) : 0;
	wstats.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
	/* Update spy records */
	wireless_spy_update(dev, mac, &wstats);
}

static void orinoco_stat_gather(struct net_device *dev,
				struct sk_buff *skb,
				struct hermes_rx_descriptor *desc)
{
	struct orinoco_private *priv = netdev_priv(dev);

	/* Using spy support with lots of Rx packets, like in an
	 * infrastructure (AP), will really slow down everything, because
	 * the MAC address must be compared to each entry of the spy list.
	 * If the user really asks for it (set some address in the
	 * spy list), we do it, but he will pay the price.
	 * Note that to get here, you need both WIRELESS_SPY
	 * compiled in AND some addresses in the list !!!
	 */
	/* Note : gcc will optimise the whole section away if
	 * WIRELESS_SPY is not defined... - Jean II */
	if (SPY_NUMBER(priv)) {
		orinoco_spy_gather(dev, skb_mac_header(skb) + ETH_ALEN,
				   desc->signal, desc->silence);
	}
}

/*
 * orinoco_rx_monitor - handle received monitor frames.
 *
 * Arguments:
 *	dev		network device
 *	rxfid		received FID
 *	desc		rx descriptor of the frame
 *
 * Call context: interrupt
 */
static void orinoco_rx_monitor(struct net_device *dev, u16 rxfid,
			       struct hermes_rx_descriptor *desc)
{
	u32 hdrlen = 30;	/* return full header by default */
	u32 datalen = 0;
	u16 fc;
	int err;
	int len;
	struct sk_buff *skb;
	struct orinoco_private *priv = netdev_priv(dev);
	struct net_device_stats *stats = &priv->stats;
	hermes_t *hw = &priv->hw;

	len = le16_to_cpu(desc->data_len);

	/* Determine the size of the header and the data */
	fc = le16_to_cpu(desc->frame_ctl);
	switch (fc & IEEE80211_FCTL_FTYPE) {
	case IEEE80211_FTYPE_DATA:
		if ((fc & IEEE80211_FCTL_TODS)
		    && (fc & IEEE80211_FCTL_FROMDS))
			hdrlen = 30;
		else
			hdrlen = 24;
		datalen = len;
		break;
	case IEEE80211_FTYPE_MGMT:
		hdrlen = 24;
		datalen = len;
		break;
	case IEEE80211_FTYPE_CTL:
		switch (fc & IEEE80211_FCTL_STYPE) {
		case IEEE80211_STYPE_PSPOLL:
		case IEEE80211_STYPE_RTS:
		case IEEE80211_STYPE_CFEND:
		case IEEE80211_STYPE_CFENDACK:
			hdrlen = 16;
			break;
		case IEEE80211_STYPE_CTS:
		case IEEE80211_STYPE_ACK:
			hdrlen = 10;
			break;
		}
		break;
	default:
		/* Unknown frame type */
		break;
	}

	/* sanity check the length */
	if (datalen > IEEE80211_MAX_DATA_LEN + 12) {
		printk(KERN_DEBUG "%s: oversized monitor frame, "
		       "data length = %d\n", dev->name, datalen);
		stats->rx_length_errors++;
		goto update_stats;
	}

	skb = dev_alloc_skb(hdrlen + datalen);
	if (!skb) {
		printk(KERN_WARNING "%s: Cannot allocate skb for monitor frame\n",
		       dev->name);
		goto update_stats;
	}

	/* Copy the 802.11 header to the skb */
	memcpy(skb_put(skb, hdrlen), &(desc->frame_ctl), hdrlen);
	skb_reset_mac_header(skb);

	/* If any, copy the data from the card to the skb */
	if (datalen > 0) {
		err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, datalen),
				       ALIGN(datalen, 2), rxfid,
				       HERMES_802_2_OFFSET);
		if (err) {
			printk(KERN_ERR "%s: error %d reading monitor frame\n",
			       dev->name, err);
			goto drop;
		}
	}

	skb->dev = dev;
	skb->ip_summed = CHECKSUM_NONE;
	skb->pkt_type = PACKET_OTHERHOST;
	skb->protocol = cpu_to_be16(ETH_P_802_2);

	stats->rx_packets++;
	stats->rx_bytes += skb->len;

	netif_rx(skb);
	return;

 drop:
	dev_kfree_skb_irq(skb);
 update_stats:
	stats->rx_errors++;
	stats->rx_dropped++;
}

static void __orinoco_ev_rx(struct net_device *dev, hermes_t *hw)
{
	struct orinoco_private *priv = netdev_priv(dev);
	struct net_device_stats *stats = &priv->stats;
	struct iw_statistics *wstats = &priv->wstats;
	struct sk_buff *skb = NULL;
	u16 rxfid, status;
	int length;
	struct hermes_rx_descriptor *desc;
	struct orinoco_rx_data *rx_data;
	int err;

	desc = kmalloc(sizeof(*desc), GFP_ATOMIC);
	if (!desc) {
		printk(KERN_WARNING
		       "%s: Can't allocate space for RX descriptor\n",
		       dev->name);
		goto update_stats;
	}

	rxfid = hermes_read_regn(hw, RXFID);

	err = hermes_bap_pread(hw, IRQ_BAP, desc, sizeof(*desc),
			       rxfid, 0);
	if (err) {
		printk(KERN_ERR "%s: error %d reading Rx descriptor. "
		       "Frame dropped.\n", dev->name, err);
		goto update_stats;
	}

	status = le16_to_cpu(desc->status);

	if (status & HERMES_RXSTAT_BADCRC) {
		DEBUG(1, "%s: Bad CRC on Rx. Frame dropped.\n",
		      dev->name);
		stats->rx_crc_errors++;
		goto update_stats;
	}

	/* Handle frames in monitor mode */
	if (priv->iw_mode == IW_MODE_MONITOR) {
		orinoco_rx_monitor(dev, rxfid, desc);
		goto out;
	}

	if (status & HERMES_RXSTAT_UNDECRYPTABLE) {
		DEBUG(1, "%s: Undecryptable frame on Rx. Frame dropped.\n",
		      dev->name);
		wstats->discard.code++;
		goto update_stats;
	}

	length = le16_to_cpu(desc->data_len);

	/* Sanity checks */
	if (length < 3) { /* No for even an 802.2 LLC header */
		/* At least on Symbol firmware with PCF we get quite a
		   lot of these legitimately - Poll frames with no
		   data. */
		goto out;
	}
	if (length > IEEE80211_MAX_DATA_LEN) {
		printk(KERN_WARNING "%s: Oversized frame received (%d bytes)\n",
		       dev->name, length);
		stats->rx_length_errors++;
		goto update_stats;
	}

	/* Payload size does not include Michael MIC. Increase payload
	 * size to read it together with the data. */
	if (status & HERMES_RXSTAT_MIC)
		length += MICHAEL_MIC_LEN;

	/* We need space for the packet data itself, plus an ethernet
	   header, plus 2 bytes so we can align the IP header on a
	   32bit boundary, plus 1 byte so we can read in odd length
	   packets from the card, which has an IO granularity of 16
	   bits */
	skb = dev_alloc_skb(length+ETH_HLEN+2+1);
	if (!skb) {
		printk(KERN_WARNING "%s: Can't allocate skb for Rx\n",
		       dev->name);
		goto update_stats;
	}

	/* We'll prepend the header, so reserve space for it.  The worst
	   case is no decapsulation, when 802.3 header is prepended and
	   nothing is removed.  2 is for aligning the IP header.  */
	skb_reserve(skb, ETH_HLEN + 2);

	err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, length),
			       ALIGN(length, 2), rxfid,
			       HERMES_802_2_OFFSET);
	if (err) {
		printk(KERN_ERR "%s: error %d reading frame. "
		       "Frame dropped.\n", dev->name, err);
		goto drop;
	}

	/* Add desc and skb to rx queue */
	rx_data = kzalloc(sizeof(*rx_data), GFP_ATOMIC);
	if (!rx_data) {
		printk(KERN_WARNING "%s: Can't allocate RX packet\n",
			dev->name);
		goto drop;
	}
	rx_data->desc = desc;
	rx_data->skb = skb;
	list_add_tail(&rx_data->list, &priv->rx_list);
	tasklet_schedule(&priv->rx_tasklet);

	return;

drop:
	dev_kfree_skb_irq(skb);
update_stats:
	stats->rx_errors++;
	stats->rx_dropped++;
out:
	kfree(desc);
}

static void orinoco_rx(struct net_device *dev,
		       struct hermes_rx_descriptor *desc,
		       struct sk_buff *skb)
{
	struct orinoco_private *priv = netdev_priv(dev);
	struct net_device_stats *stats = &priv->stats;
	u16 status, fc;
	int length;
	struct ethhdr *hdr;

	status = le16_to_cpu(desc->status);
	length = le16_to_cpu(desc->data_len);
	fc = le16_to_cpu(desc->frame_ctl);

	/* Calculate and check MIC */
	if (status & HERMES_RXSTAT_MIC) {
		int key_id = ((status & HERMES_RXSTAT_MIC_KEY_ID) >>
			      HERMES_MIC_KEY_ID_SHIFT);
		u8 mic[MICHAEL_MIC_LEN];
		u8 *rxmic;
		u8 *src = (fc & IEEE80211_FCTL_FROMDS) ?
			desc->addr3 : desc->addr2;

		/* Extract Michael MIC from payload */
		rxmic = skb->data + skb->len - MICHAEL_MIC_LEN;

		skb_trim(skb, skb->len - MICHAEL_MIC_LEN);
		length -= MICHAEL_MIC_LEN;

		orinoco_mic(priv->rx_tfm_mic,
			    priv->tkip_key[key_id].rx_mic,
			    desc->addr1,
			    src,
			    0, /* priority or QoS? */
			    skb->data,
			    skb->len,
			    &mic[0]);

		if (memcmp(mic, rxmic,
			   MICHAEL_MIC_LEN)) {
			union iwreq_data wrqu;
			struct iw_michaelmicfailure wxmic;

			printk(KERN_WARNING "%s: "
			       "Invalid Michael MIC in data frame from %pM, "
			       "using key %i\n",
			       dev->name, src, key_id);

			/* TODO: update stats */

			/* Notify userspace */
			memset(&wxmic, 0, sizeof(wxmic));
			wxmic.flags = key_id & IW_MICFAILURE_KEY_ID;
			wxmic.flags |= (desc->addr1[0] & 1) ?
				IW_MICFAILURE_GROUP : IW_MICFAILURE_PAIRWISE;
			wxmic.src_addr.sa_family = ARPHRD_ETHER;
			memcpy(wxmic.src_addr.sa_data, src, ETH_ALEN);

			(void) orinoco_hw_get_tkip_iv(priv, key_id,
						      &wxmic.tsc[0]);

			memset(&wrqu, 0, sizeof(wrqu));
			wrqu.data.length = sizeof(wxmic);
			wireless_send_event(dev, IWEVMICHAELMICFAILURE, &wrqu,
					    (char *) &wxmic);

			goto drop;
		}
	}

	/* Handle decapsulation
	 * In most cases, the firmware tell us about SNAP frames.
	 * For some reason, the SNAP frames sent by LinkSys APs
	 * are not properly recognised by most firmwares.
	 * So, check ourselves */
	if (length >= ENCAPS_OVERHEAD &&
	    (((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_1042) ||
	     ((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_TUNNEL) ||
	     is_ethersnap(skb->data))) {
		/* These indicate a SNAP within 802.2 LLC within
		   802.11 frame which we'll need to de-encapsulate to
		   the original EthernetII frame. */
		hdr = (struct ethhdr *)skb_push(skb,
						ETH_HLEN - ENCAPS_OVERHEAD);
	} else {
		/* 802.3 frame - prepend 802.3 header as is */
		hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN);
		hdr->h_proto = htons(length);
	}
	memcpy(hdr->h_dest, desc->addr1, ETH_ALEN);
	if (fc & IEEE80211_FCTL_FROMDS)
		memcpy(hdr->h_source, desc->addr3, ETH_ALEN);
	else
		memcpy(hdr->h_source, desc->addr2, ETH_ALEN);

	skb->protocol = eth_type_trans(skb, dev);
	skb->ip_summed = CHECKSUM_NONE;
	if (fc & IEEE80211_FCTL_TODS)
		skb->pkt_type = PACKET_OTHERHOST;

	/* Process the wireless stats if needed */
	orinoco_stat_gather(dev, skb, desc);

	/* Pass the packet to the networking stack */
	netif_rx(skb);
	stats->rx_packets++;
	stats->rx_bytes += length;

	return;

 drop:
	dev_kfree_skb(skb);
	stats->rx_errors++;
	stats->rx_dropped++;
}

static void orinoco_rx_isr_tasklet(unsigned long data)
{
	struct net_device *dev = (struct net_device *) data;
	struct orinoco_private *priv = netdev_priv(dev);
	struct orinoco_rx_data *rx_data, *temp;
	struct hermes_rx_descriptor *desc;
	struct sk_buff *skb;
	unsigned long flags;

	/* orinoco_rx requires the driver lock, and we also need to
	 * protect priv->rx_list, so just hold the lock over the
	 * lot.
	 *
	 * If orinoco_lock fails, we've unplugged the card. In this
	 * case just abort. */
	if (orinoco_lock(priv, &flags) != 0)
		return;

	/* extract desc and skb from queue */
	list_for_each_entry_safe(rx_data, temp, &priv->rx_list, list) {
		desc = rx_data->desc;
		skb = rx_data->skb;
		list_del(&rx_data->list);
		kfree(rx_data);

		orinoco_rx(dev, desc, skb);

		kfree(desc);
	}

	orinoco_unlock(priv, &flags);
}

/********************************************************************/
/* Rx path (info frames)                                            */
/********************************************************************/

static void print_linkstatus(struct net_device *dev, u16 status)
{
	char *s;

	if (suppress_linkstatus)
		return;

	switch (status) {
	case HERMES_LINKSTATUS_NOT_CONNECTED:
		s = "Not Connected";
		break;
	case HERMES_LINKSTATUS_CONNECTED:
		s = "Connected";
		break;
	case HERMES_LINKSTATUS_DISCONNECTED:
		s = "Disconnected";
		break;
	case HERMES_LINKSTATUS_AP_CHANGE:
		s = "AP Changed";
		break;
	case HERMES_LINKSTATUS_AP_OUT_OF_RANGE:
		s = "AP Out of Range";
		break;
	case HERMES_LINKSTATUS_AP_IN_RANGE:
		s = "AP In Range";
		break;
	case HERMES_LINKSTATUS_ASSOC_FAILED:
		s = "Association Failed";
		break;
	default:
		s = "UNKNOWN";
	}

	printk(KERN_DEBUG "%s: New link status: %s (%04x)\n",
	       dev->name, s, status);
}

/* Search scan results for requested BSSID, join it if found */
static void orinoco_join_ap(struct work_struct *work)
{
	struct orinoco_private *priv =
		container_of(work, struct orinoco_private, join_work);
	struct net_device *dev = priv->ndev;
	struct hermes *hw = &priv->hw;
	int err;
	unsigned long flags;
	struct join_req {
		u8 bssid[ETH_ALEN];
		__le16 channel;
	} __attribute__ ((packed)) req;
	const int atom_len = offsetof(struct prism2_scan_apinfo, atim);
	struct prism2_scan_apinfo *atom = NULL;
	int offset = 4;
	int found = 0;
	u8 *buf;
	u16 len;

	/* Allocate buffer for scan results */
	buf = kmalloc(MAX_SCAN_LEN, GFP_KERNEL);
	if (!buf)
		return;

	if (orinoco_lock(priv, &flags) != 0)
		goto fail_lock;

	/* Sanity checks in case user changed something in the meantime */
	if (!priv->bssid_fixed)
		goto out;

	if (strlen(priv->desired_essid) == 0)
		goto out;

	/* Read scan results from the firmware */
	err = hermes_read_ltv(hw, USER_BAP,
			      HERMES_RID_SCANRESULTSTABLE,
			      MAX_SCAN_LEN, &len, buf);
	if (err) {
		printk(KERN_ERR "%s: Cannot read scan results\n",
		       dev->name);
		goto out;
	}

	len = HERMES_RECLEN_TO_BYTES(len);

	/* Go through the scan results looking for the channel of the AP
	 * we were requested to join */
	for (; offset + atom_len <= len; offset += atom_len) {
		atom = (struct prism2_scan_apinfo *) (buf + offset);
		if (memcmp(&atom->bssid, priv->desired_bssid, ETH_ALEN) == 0) {
			found = 1;
			break;
		}
	}

	if (!found) {
		DEBUG(1, "%s: Requested AP not found in scan results\n",
		      dev->name);
		goto out;
	}

	memcpy(req.bssid, priv->desired_bssid, ETH_ALEN);
	req.channel = atom->channel;	/* both are little-endian */
	err = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFJOINREQUEST,
				  &req);
	if (err)
		printk(KERN_ERR "%s: Error issuing join request\n", dev->name);

 out:
	orinoco_unlock(priv, &flags);

 fail_lock:
	kfree(buf);
}

/* Send new BSSID to userspace */
static void orinoco_send_bssid_wevent(struct orinoco_private *priv)
{
	struct net_device *dev = priv->ndev;
	struct hermes *hw = &priv->hw;
	union iwreq_data wrqu;
	int err;

	err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTBSSID,
			      ETH_ALEN, NULL, wrqu.ap_addr.sa_data);
	if (err != 0)
		return;

	wrqu.ap_addr.sa_family = ARPHRD_ETHER;

	/* Send event to user space */
	wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
}

static void orinoco_send_assocreqie_wevent(struct orinoco_private *priv)
{
	struct net_device *dev = priv->ndev;
	struct hermes *hw = &priv->hw;
	union iwreq_data wrqu;
	int err;
	u8 buf[88];
	u8 *ie;

	if (!priv->has_wpa)
		return;

	err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENT_ASSOC_REQ_INFO,
			      sizeof(buf), NULL, &buf);
	if (err != 0)
		return;

	ie = orinoco_get_wpa_ie(buf, sizeof(buf));
	if (ie) {
		int rem = sizeof(buf) - (ie - &buf[0]);
		wrqu.data.length = ie[1] + 2;
		if (wrqu.data.length > rem)
			wrqu.data.length = rem;

		if (wrqu.data.length)
			/* Send event to user space */
			wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, ie);
	}
}

static void orinoco_send_assocrespie_wevent(struct orinoco_private *priv)
{
	struct net_device *dev = priv->ndev;
	struct hermes *hw = &priv->hw;
	union iwreq_data wrqu;
	int err;
	u8 buf[88]; /* TODO: verify max size or IW_GENERIC_IE_MAX */
	u8 *ie;

	if (!priv->has_wpa)
		return;

	err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENT_ASSOC_RESP_INFO,
			      sizeof(buf), NULL, &buf);
	if (err != 0)
		return;

	ie = orinoco_get_wpa_ie(buf, sizeof(buf));
	if (ie) {
		int rem = sizeof(buf) - (ie - &buf[0]);
		wrqu.data.length = ie[1] + 2;
		if (wrqu.data.length > rem)
			wrqu.data.length = rem;

		if (wrqu.data.length)
			/* Send event to user space */
			wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, ie);
	}
}

static void orinoco_send_wevents(struct work_struct *work)
{
	struct orinoco_private *priv =
		container_of(work, struct orinoco_private, wevent_work);
	unsigned long flags;

	if (orinoco_lock(priv, &flags) != 0)
		return;

	orinoco_send_assocreqie_wevent(priv);
	orinoco_send_assocrespie_wevent(priv);
	orinoco_send_bssid_wevent(priv);

	orinoco_unlock(priv, &flags);
}

static void __orinoco_ev_info(struct net_device *dev, hermes_t *hw)
{
	struct orinoco_private *priv = netdev_priv(dev);
	u16 infofid;
	struct {
		__le16 len;
		__le16 type;
	} __attribute__ ((packed)) info;
	int len, type;
	int err;

	/* This is an answer to an INQUIRE command that we did earlier,
	 * or an information "event" generated by the card
	 * The controller return to us a pseudo frame containing
	 * the information in question - Jean II */
	infofid = hermes_read_regn(hw, INFOFID);

	/* Read the info frame header - don't try too hard */
	err = hermes_bap_pread(hw, IRQ_BAP, &info, sizeof(info),
			       infofid, 0);
	if (err) {
		printk(KERN_ERR "%s: error %d reading info frame. "
		       "Frame dropped.\n", dev->name, err);
		return;
	}

	len = HERMES_RECLEN_TO_BYTES(le16_to_cpu(info.len));
	type = le16_to_cpu(info.type);

	switch (type) {
	case HERMES_INQ_TALLIES: {
		struct hermes_tallies_frame tallies;
		struct iw_statistics *wstats = &priv->wstats;

		if (len > sizeof(tallies)) {
			printk(KERN_WARNING "%s: Tallies frame too long (%d bytes)\n",
			       dev->name, len);
			len = sizeof(tallies);
		}

		err = hermes_bap_pread(hw, IRQ_BAP, &tallies, len,
				       infofid, sizeof(info));
		if (err)
			break;

		/* Increment our various counters */
		/* wstats->discard.nwid - no wrong BSSID stuff */
		wstats->discard.code +=
			le16_to_cpu(tallies.RxWEPUndecryptable);
		if (len == sizeof(tallies))
			wstats->discard.code +=
				le16_to_cpu(tallies.RxDiscards_WEPICVError) +
				le16_to_cpu(tallies.RxDiscards_WEPExcluded);
		wstats->discard.misc +=
			le16_to_cpu(tallies.TxDiscardsWrongSA);
		wstats->discard.fragment +=
			le16_to_cpu(tallies.RxMsgInBadMsgFragments);
		wstats->discard.retries +=
			le16_to_cpu(tallies.TxRetryLimitExceeded);
		/* wstats->miss.beacon - no match */
	}
	break;
	case HERMES_INQ_LINKSTATUS: {
		struct hermes_linkstatus linkstatus;
		u16 newstatus;
		int connected;

		if (priv->iw_mode == IW_MODE_MONITOR)
			break;

		if (len != sizeof(linkstatus)) {
			printk(KERN_WARNING "%s: Unexpected size for linkstatus frame (%d bytes)\n",
			       dev->name, len);
			break;
		}

		err = hermes_bap_pread(hw, IRQ_BAP, &linkstatus, len,
				       infofid, sizeof(info));
		if (err)
			break;
		newstatus = le16_to_cpu(linkstatus.linkstatus);

		/* Symbol firmware uses "out of range" to signal that
		 * the hostscan frame can be requested.  */
		if (newstatus == HERMES_LINKSTATUS_AP_OUT_OF_RANGE &&
		    priv->firmware_type == FIRMWARE_TYPE_SYMBOL &&
		    priv->has_hostscan && priv->scan_inprogress) {
			hermes_inquire(hw, HERMES_INQ_HOSTSCAN_SYMBOL);
			break;
		}

		connected = (newstatus == HERMES_LINKSTATUS_CONNECTED)
			|| (newstatus == HERMES_LINKSTATUS_AP_CHANGE)
			|| (newstatus == HERMES_LINKSTATUS_AP_IN_RANGE);

		if (connected)
			netif_carrier_on(dev);
		else if (!ignore_disconnect)
			netif_carrier_off(dev);

		if (newstatus != priv->last_linkstatus) {
			priv->last_linkstatus = newstatus;
			print_linkstatus(dev, newstatus);
			/* The info frame contains only one word which is the
			 * status (see hermes.h). The status is pretty boring
			 * in itself, that's why we export the new BSSID...
			 * Jean II */
			schedule_work(&priv->wevent_work);
		}
	}
	break;
	case HERMES_INQ_SCAN:
		if (!priv->scan_inprogress && priv->bssid_fixed &&
		    priv->firmware_type == FIRMWARE_TYPE_INTERSIL) {
			schedule_work(&priv->join_work);
			break;
		}
		/* fall through */
	case HERMES_INQ_HOSTSCAN:
	case HERMES_INQ_HOSTSCAN_SYMBOL: {
		/* Result of a scanning. Contains information about
		 * cells in the vicinity - Jean II */
		union iwreq_data	wrqu;
		unsigned char *buf;

		/* Scan is no longer in progress */
		priv->scan_inprogress = 0;

		/* Sanity check */
		if (len > 4096) {
			printk(KERN_WARNING "%s: Scan results too large (%d bytes)\n",
			       dev->name, len);
			break;
		}

		/* Allocate buffer for results */
		buf = kmalloc(len, GFP_ATOMIC);
		if (buf == NULL)
			/* No memory, so can't printk()... */
			break;

		/* Read scan data */
		err = hermes_bap_pread(hw, IRQ_BAP, (void *) buf, len,
				       infofid, sizeof(info));
		if (err) {
			kfree(buf);
			break;
		}

#ifdef ORINOCO_DEBUG
		{
			int	i;
			printk(KERN_DEBUG "Scan result [%02X", buf[0]);
			for (i = 1; i < (len * 2); i++)
				printk(":%02X", buf[i]);
			printk("]\n");
		}
#endif	/* ORINOCO_DEBUG */

		if (orinoco_process_scan_results(priv, buf, len) == 0) {
			/* Send an empty event to user space.
			 * We don't send the received data on the event because
			 * it would require us to do complex transcoding, and
			 * we want to minimise the work done in the irq handler
			 * Use a request to extract the data - Jean II */
			wrqu.data.length = 0;
			wrqu.data.flags = 0;
			wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
		}
		kfree(buf);
	}
	break;
	case HERMES_INQ_CHANNELINFO:
	{
		struct agere_ext_scan_info *bss;

		if (!priv->scan_inprogress) {
			printk(KERN_DEBUG "%s: Got chaninfo without scan, "
			       "len=%d\n", dev->name, len);
			break;
		}

		/* An empty result indicates that the scan is complete */
		if (len == 0) {
			union iwreq_data	wrqu;

			/* Scan is no longer in progress */
			priv->scan_inprogress = 0;

			wrqu.data.length = 0;
			wrqu.data.flags = 0;
			wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
			break;
		}

		/* Sanity check */
		else if (len > sizeof(*bss)) {
			printk(KERN_WARNING
			       "%s: Ext scan results too large (%d bytes). "
			       "Truncating results to %zd bytes.\n",
			       dev->name, len, sizeof(*bss));
			len = sizeof(*bss);
		} else if (len < (offsetof(struct agere_ext_scan_info,
					   data) + 2)) {
			/* Drop this result now so we don't have to
			 * keep checking later */
			printk(KERN_WARNING
			       "%s: Ext scan results too short (%d bytes)\n",
			       dev->name, len);
			break;
		}

		bss = kmalloc(sizeof(*bss), GFP_ATOMIC);
		if (bss == NULL)
			break;

		/* Read scan data */
		err = hermes_bap_pread(hw, IRQ_BAP, (void *) bss, len,
				       infofid, sizeof(info));
		if (err) {
			kfree(bss);
			break;
		}

		orinoco_add_ext_scan_result(priv, bss);

		kfree(bss);
		break;
	}
	case HERMES_INQ_SEC_STAT_AGERE:
		/* Security status (Agere specific) */
		/* Ignore this frame for now */
		if (priv->firmware_type == FIRMWARE_TYPE_AGERE)
			break;
		/* fall through */
	default:
		printk(KERN_DEBUG "%s: Unknown information frame received: "
		       "type 0x%04x, length %d\n", dev->name, type, len);
		/* We don't actually do anything about it */
		break;
	}
}

static void __orinoco_ev_infdrop(struct net_device *dev, hermes_t *hw)
{
	if (net_ratelimit())
		printk(KERN_DEBUG "%s: Information frame lost.\n", dev->name);
}

/********************************************************************/
/* Internal hardware control routines                               */
/********************************************************************/

int __orinoco_up(struct net_device *dev)
{
	struct orinoco_private *priv = netdev_priv(dev);
	struct hermes *hw = &priv->hw;
	int err;

	netif_carrier_off(dev); /* just to make sure */

	err = __orinoco_program_rids(dev);
	if (err) {
		printk(KERN_ERR "%s: Error %d configuring card\n",
		       dev->name, err);
		return err;
	}

	/* Fire things up again */
	hermes_set_irqmask(hw, ORINOCO_INTEN);
	err = hermes_enable_port(hw, 0);
	if (err) {
		printk(KERN_ERR "%s: Error %d enabling MAC port\n",
		       dev->name, err);
		return err;
	}

	netif_start_queue(dev);

	return 0;
}
EXPORT_SYMBOL(__orinoco_up);

int __orinoco_down(struct net_device *dev)
{
	struct orinoco_private *priv = netdev_priv(dev);
	struct hermes *hw = &priv->hw;
	int err;

	netif_stop_queue(dev);

	if (!priv->hw_unavailable) {
		if (!priv->broken_disableport) {
			err = hermes_disable_port(hw, 0);
			if (err) {
				/* Some firmwares (e.g. Intersil 1.3.x) seem
				 * to have problems disabling the port, oh
				 * well, too bad. */
				printk(KERN_WARNING "%s: Error %d disabling MAC port\n",
				       dev->name, err);
				priv->broken_disableport = 1;
			}
		}
		hermes_set_irqmask(hw, 0);
		hermes_write_regn(hw, EVACK, 0xffff);
	}

	/* firmware will have to reassociate */
	netif_carrier_off(dev);
	priv->last_linkstatus = 0xffff;

	return 0;
}
EXPORT_SYMBOL(__orinoco_down);

static int orinoco_allocate_fid(struct net_device *dev)
{
	struct orinoco_private *priv = netdev_priv(dev);
	struct hermes *hw = &priv->hw;
	int err;

	err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
	if (err == -EIO && priv->nicbuf_size > TX_NICBUF_SIZE_BUG) {
		/* Try workaround for old Symbol firmware bug */
		priv->nicbuf_size = TX_NICBUF_SIZE_BUG;
		err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);

		printk(KERN_WARNING "%s: firmware ALLOC bug detected "
		       "(old Symbol firmware?). Work around %s\n",
		       dev->name, err ? "failed!" : "ok.");
	}

	return err;
}

int orinoco_reinit_firmware(struct net_device *dev)
{
	struct orinoco_private *priv = netdev_priv(dev);
	struct hermes *hw = &priv->hw;
	int err;

	err = hermes_init(hw);
	if (priv->do_fw_download && !err) {
		err = orinoco_download(priv);
		if (err)
			priv->do_fw_download = 0;
	}
	if (!err)
		err = orinoco_allocate_fid(dev);

	return err;
}
EXPORT_SYMBOL(orinoco_reinit_firmware);

int __orinoco_program_rids(struct net_device *dev)
{
	struct orinoco_private *priv = netdev_priv(dev);
	hermes_t *hw = &priv->hw;
	int err;
	struct hermes_idstring idbuf;

	/* Set the MAC address */
	err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
			       HERMES_BYTES_TO_RECLEN(ETH_ALEN), dev->dev_addr);
	if (err) {
		printk(KERN_ERR "%s: Error %d setting MAC address\n",
		       dev->name, err);
		return err;
	}

	/* Set up the link mode */
	err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPORTTYPE,
				   priv->port_type);
	if (err) {
		printk(KERN_ERR "%s: Error %d setting port type\n",
		       dev->name, err);
		return err;
	}
	/* Set the channel/frequency */
	if (priv->channel != 0 && priv->iw_mode != IW_MODE_INFRA) {
		err = hermes_write_wordrec(hw, USER_BAP,
					   HERMES_RID_CNFOWNCHANNEL,
					   priv->channel);
		if (err) {
			printk(KERN_ERR "%s: Error %d setting channel %d\n",
			       dev->name, err, priv->channel);
			return err;
		}
	}

	if (priv->has_ibss) {
		u16 createibss;

		if ((strlen(priv->desired_essid) == 0) && (priv->createibss)) {
			printk(KERN_WARNING "%s: This firmware requires an "
			       "ESSID in IBSS-Ad-Hoc mode.\n", dev->name);
			/* With wvlan_cs, in this case, we would crash.
			 * hopefully, this driver will behave better...
			 * Jean II */
			createibss = 0;
		} else {
			createibss = priv->createibss;
		}

		err = hermes_write_wordrec(hw, USER_BAP,
					   HERMES_RID_CNFCREATEIBSS,
					   createibss);
		if (err) {
			printk(KERN_ERR "%s: Error %d setting CREATEIBSS\n",
			       dev->name, err);
			return err;
		}
	}

	/* Set the desired BSSID */
	err = __orinoco_hw_set_wap(priv);
	if (err) {
		printk(KERN_ERR "%s: Error %d setting AP address\n",
		       dev->name, err);
		return err;
	}
	/* Set the desired ESSID */
	idbuf.len = cpu_to_le16(strlen(priv->desired_essid));
	memcpy(&idbuf.val, priv->desired_essid, sizeof(idbuf.val));
	/* WinXP wants partner to configure OWNSSID even in IBSS mode. (jimc) */
	err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNSSID,
			HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
			&idbuf);
	if (err) {
		printk(KERN_ERR "%s: Error %d setting OWNSSID\n",
		       dev->name, err);
		return err;
	}
	err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFDESIREDSSID,
			HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
			&idbuf);
	if (err) {
		printk(KERN_ERR "%s: Error %d setting DESIREDSSID\n",
		       dev->name, err);
		return err;
	}

	/* Set the station name */
	idbuf.len = cpu_to_le16(strlen(priv->nick));
	memcpy(&idbuf.val, priv->nick, sizeof(idbuf.val));
	err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
			       HERMES_BYTES_TO_RECLEN(strlen(priv->nick)+2),
			       &idbuf);
	if (err) {
		printk(KERN_ERR "%s: Error %d setting nickname\n",
		       dev->name, err);
		return err;
	}

	/* Set AP density */
	if (priv->has_sensitivity) {
		err = hermes_write_wordrec(hw, USER_BAP,
					   HERMES_RID_CNFSYSTEMSCALE,
					   priv->ap_density);
		if (err) {
			printk(KERN_WARNING "%s: Error %d setting SYSTEMSCALE. "
			       "Disabling sensitivity control\n",
			       dev->name, err);

			priv->has_sensitivity = 0;
		}
	}

	/* Set RTS threshold */
	err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
				   priv->rts_thresh);
	if (err) {
		printk(KERN_ERR "%s: Error %d setting RTS threshold\n",
		       dev->name, err);
		return err;
	}

	/* Set fragmentation threshold or MWO robustness */
	if (priv->has_mwo)
		err = hermes_write_wordrec(hw, USER_BAP,
					   HERMES_RID_CNFMWOROBUST_AGERE,
					   priv->mwo_robust);
	else
		err = hermes_write_wordrec(hw, USER_BAP,
					   HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
					   priv->frag_thresh);
	if (err) {
		printk(KERN_ERR "%s: Error %d setting fragmentation\n",
		       dev->name, err);
		return err;
	}

	/* Set bitrate */
	err = __orinoco_hw_set_bitrate(priv);
	if (err) {
		printk(KERN_ERR "%s: Error %d setting bitrate\n",
		       dev->name, err);
		return err;
	}

	/* Set power management */
	if (priv->has_pm) {
		err = hermes_write_wordrec(hw, USER_BAP,
					   HERMES_RID_CNFPMENABLED,
					   priv->pm_on);
		if (err) {
			printk(KERN_ERR "%s: Error %d setting up PM\n",
			       dev->name, err);
			return err;
		}

		err = hermes_write_wordrec(hw, USER_BAP,
					   HERMES_RID_CNFMULTICASTRECEIVE,
					   priv->pm_mcast);
		if (err) {
			printk(KERN_ERR "%s: Error %d setting up PM\n",
			       dev->name, err);
			return err;
		}
		err = hermes_write_wordrec(hw, USER_BAP,
					   HERMES_RID_CNFMAXSLEEPDURATION,
					   priv->pm_period);
		if (err) {
			printk(KERN_ERR "%s: Error %d setting up PM\n",
			       dev->name, err);
			return err;
		}
		err = hermes_write_wordrec(hw, USER_BAP,
					   HERMES_RID_CNFPMHOLDOVERDURATION,
					   priv->pm_timeout);
		if (err) {
			printk(KERN_ERR "%s: Error %d setting up PM\n",
			       dev->name, err);
			return err;
		}
	}

	/* Set preamble - only for Symbol so far... */
	if (priv->has_preamble) {
		err = hermes_write_wordrec(hw, USER_BAP,
					   HERMES_RID_CNFPREAMBLE_SYMBOL,
					   priv->preamble);
		if (err) {
			printk(KERN_ERR "%s: Error %d setting preamble\n",
			       dev->name, err);
			return err;
		}
	}

	/* Set up encryption */
	if (priv->has_wep || priv->has_wpa) {
		err = __orinoco_hw_setup_enc(priv);
		if (err) {
			printk(KERN_ERR "%s: Error %d activating encryption\n",
			       dev->name, err);
			return err;
		}
	}

	if (priv->iw_mode == IW_MODE_MONITOR) {
		/* Enable monitor mode */
		dev->type = ARPHRD_IEEE80211;
		err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
					    HERMES_TEST_MONITOR, 0, NULL);
	} else {
		/* Disable monitor mode */
		dev->type = ARPHRD_ETHER;
		err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
					    HERMES_TEST_STOP, 0, NULL);
	}
	if (err)
		return err;

	/* Set promiscuity / multicast*/
	priv->promiscuous = 0;
	priv->mc_count = 0;

	/* FIXME: what about netif_tx_lock */
	__orinoco_set_multicast_list(dev);

	return 0;
}

/* FIXME: return int? */
static void
__orinoco_set_multicast_list(struct net_device *dev)
{
	struct orinoco_private *priv = netdev_priv(dev);
	int err = 0;
	int promisc, mc_count;

	/* The Hermes doesn't seem to have an allmulti mode, so we go
	 * into promiscuous mode and let the upper levels deal. */
	if ((dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI) ||
	    (dev->mc_count > MAX_MULTICAST(priv))) {
		promisc = 1;
		mc_count = 0;
	} else {
		promisc = 0;
		mc_count = dev->mc_count;
	}

	err = __orinoco_hw_set_multicast_list(priv, dev->mc_list, mc_count,
					      promisc);
}

/* This must be called from user context, without locks held - use
 * schedule_work() */
void orinoco_reset(struct work_struct *work)
{
	struct orinoco_private *priv =
		container_of(work, struct orinoco_private, reset_work);
	struct net_device *dev = priv->ndev;
	struct hermes *hw = &priv->hw;
	int err;
	unsigned long flags;

	if (orinoco_lock(priv, &flags) != 0)
		/* When the hardware becomes available again, whatever
		 * detects that is responsible for re-initializing
		 * it. So no need for anything further */
		return;

	netif_stop_queue(dev);

	/* Shut off interrupts.  Depending on what state the hardware
	 * is in, this might not work, but we'll try anyway */
	hermes_set_irqmask(hw, 0);
	hermes_write_regn(hw, EVACK, 0xffff);

	priv->hw_unavailable++;
	priv->last_linkstatus = 0xffff; /* firmware will have to reassociate */
	netif_carrier_off(dev);

	orinoco_unlock(priv, &flags);

	/* Scanning support: Cleanup of driver struct */
	orinoco_clear_scan_results(priv, 0);
	priv->scan_inprogress = 0;

	if (priv->hard_reset) {
		err = (*priv->hard_reset)(priv);
		if (err) {
			printk(KERN_ERR "%s: orinoco_reset: Error %d "
			       "performing hard reset\n", dev->name, err);
			goto disable;
		}
	}

	err = orinoco_reinit_firmware(dev);
	if (err) {
		printk(KERN_ERR "%s: orinoco_reset: Error %d re-initializing firmware\n",
		       dev->name, err);
		goto disable;
	}

	/* This has to be called from user context */
	spin_lock_irq(&priv->lock);

	priv->hw_unavailable--;

	/* priv->open or priv->hw_unavailable might have changed while
	 * we dropped the lock */
	if (priv->open && (!priv->hw_unavailable)) {
		err = __orinoco_up(dev);
		if (err) {
			printk(KERN_ERR "%s: orinoco_reset: Error %d reenabling card\n",
			       dev->name, err);
		} else
			dev->trans_start = jiffies;
	}

	spin_unlock_irq(&priv->lock);

	return;
 disable:
	hermes_set_irqmask(hw, 0);
	netif_device_detach(dev);
	printk(KERN_ERR "%s: Device has been disabled!\n", dev->name);
}

/********************************************************************/
/* Interrupt handler                                                */
/********************************************************************/

static void __orinoco_ev_tick(struct net_device *dev, hermes_t *hw)
{
	printk(KERN_DEBUG "%s: TICK\n", dev->name);
}

static void __orinoco_ev_wterr(struct net_device *dev, hermes_t *hw)
{
	/* This seems to happen a fair bit under load, but ignoring it
	   seems to work fine...*/
	printk(KERN_DEBUG "%s: MAC controller error (WTERR). Ignoring.\n",
	       dev->name);
}

irqreturn_t orinoco_interrupt(int irq, void *dev_id)
{
	struct net_device *dev = dev_id;
	struct orinoco_private *priv = netdev_priv(dev);
	hermes_t *hw = &priv->hw;
	int count = MAX_IRQLOOPS_PER_IRQ;
	u16 evstat, events;
	/* These are used to detect a runaway interrupt situation.
	 *
	 * If we get more than MAX_IRQLOOPS_PER_JIFFY iterations in a jiffy,
	 * we panic and shut down the hardware
	 */
	/* jiffies value the last time we were called */
	static int last_irq_jiffy; /* = 0 */
	static int loops_this_jiffy; /* = 0 */
	unsigned long flags;

	if (orinoco_lock(priv, &flags) != 0) {
		/* If hw is unavailable - we don't know if the irq was
		 * for us or not */
		return IRQ_HANDLED;
	}

	evstat = hermes_read_regn(hw, EVSTAT);
	events = evstat & hw->inten;
	if (!events) {
		orinoco_unlock(priv, &flags);
		return IRQ_NONE;
	}

	if (jiffies != last_irq_jiffy)
		loops_this_jiffy = 0;
	last_irq_jiffy = jiffies;

	while (events && count--) {
		if (++loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY) {
			printk(KERN_WARNING "%s: IRQ handler is looping too "
			       "much! Resetting.\n", dev->name);
			/* Disable interrupts for now */
			hermes_set_irqmask(hw, 0);
			schedule_work(&priv->reset_work);
			break;
		}

		/* Check the card hasn't been removed */
		if (!hermes_present(hw)) {
			DEBUG(0, "orinoco_interrupt(): card removed\n");
			break;
		}

		if (events & HERMES_EV_TICK)
			__orinoco_ev_tick(dev, hw);
		if (events & HERMES_EV_WTERR)
			__orinoco_ev_wterr(dev, hw);
		if (events & HERMES_EV_INFDROP)
			__orinoco_ev_infdrop(dev, hw);
		if (events & HERMES_EV_INFO)
			__orinoco_ev_info(dev, hw);
		if (events & HERMES_EV_RX)
			__orinoco_ev_rx(dev, hw);
		if (events & HERMES_EV_TXEXC)
			__orinoco_ev_txexc(dev, hw);
		if (events & HERMES_EV_TX)
			__orinoco_ev_tx(dev, hw);
		if (events & HERMES_EV_ALLOC)
			__orinoco_ev_alloc(dev, hw);

		hermes_write_regn(hw, EVACK, evstat);

		evstat = hermes_read_regn(hw, EVSTAT);
		events = evstat & hw->inten;
	};

	orinoco_unlock(priv, &flags);
	return IRQ_HANDLED;
}
EXPORT_SYMBOL(orinoco_interrupt);

/********************************************************************/
/* Power management                                                 */
/********************************************************************/
#if defined(CONFIG_PM_SLEEP) && !defined(CONFIG_HERMES_CACHE_FW_ON_INIT)
static int orinoco_pm_notifier(struct notifier_block *notifier,
			       unsigned long pm_event,
			       void *unused)
{
	struct orinoco_private *priv = container_of(notifier,
						    struct orinoco_private,
						    pm_notifier);

	/* All we need to do is cache the firmware before suspend, and
	 * release it when we come out.
	 *
	 * Only need to do this if we're downloading firmware. */
	if (!priv->do_fw_download)
		return NOTIFY_DONE;

	switch (pm_event) {
	case PM_HIBERNATION_PREPARE:
	case PM_SUSPEND_PREPARE:
		orinoco_cache_fw(priv, 0);
		break;

	case PM_POST_RESTORE:
		/* Restore from hibernation failed. We need to clean
		 * up in exactly the same way, so fall through. */
	case PM_POST_HIBERNATION:
	case PM_POST_SUSPEND:
		orinoco_uncache_fw(priv);
		break;

	case PM_RESTORE_PREPARE:
	default:
		break;
	}

	return NOTIFY_DONE;
}

static void orinoco_register_pm_notifier(struct orinoco_private *priv)
{
	priv->pm_notifier.notifier_call = orinoco_pm_notifier;
	register_pm_notifier(&priv->pm_notifier);
}

static void orinoco_unregister_pm_notifier(struct orinoco_private *priv)
{
	unregister_pm_notifier(&priv->pm_notifier);
}
#else /* !PM_SLEEP || HERMES_CACHE_FW_ON_INIT */
#define orinoco_register_pm_notifier(priv) do { } while(0)
#define orinoco_unregister_pm_notifier(priv) do { } while(0)
#endif

/********************************************************************/
/* Initialization                                                   */
/********************************************************************/

struct comp_id {
	u16 id, variant, major, minor;
} __attribute__ ((packed));

static inline fwtype_t determine_firmware_type(struct comp_id *nic_id)
{
	if (nic_id->id < 0x8000)
		return FIRMWARE_TYPE_AGERE;
	else if (nic_id->id == 0x8000 && nic_id->major == 0)
		return FIRMWARE_TYPE_SYMBOL;
	else
		return FIRMWARE_TYPE_INTERSIL;
}

/* Set priv->firmware type, determine firmware properties */
static int determine_firmware(struct net_device *dev)
{
	struct orinoco_private *priv = netdev_priv(dev);
	hermes_t *hw = &priv->hw;
	int err;
	struct comp_id nic_id, sta_id;
	unsigned int firmver;
	char tmp[SYMBOL_MAX_VER_LEN+1] __attribute__((aligned(2)));

	/* Get the hardware version */
	err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_NICID, &nic_id);
	if (err) {
		printk(KERN_ERR "%s: Cannot read hardware identity: error %d\n",
		       dev->name, err);
		return err;
	}

	le16_to_cpus(&nic_id.id);
	le16_to_cpus(&nic_id.variant);
	le16_to_cpus(&nic_id.major);
	le16_to_cpus(&nic_id.minor);
	printk(KERN_DEBUG "%s: Hardware identity %04x:%04x:%04x:%04x\n",
	       dev->name, nic_id.id, nic_id.variant,
	       nic_id.major, nic_id.minor);

	priv->firmware_type = determine_firmware_type(&nic_id);

	/* Get the firmware version */
	err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_STAID, &sta_id);
	if (err) {
		printk(KERN_ERR "%s: Cannot read station identity: error %d\n",
		       dev->name, err);
		return err;
	}

	le16_to_cpus(&sta_id.id);
	le16_to_cpus(&sta_id.variant);
	le16_to_cpus(&sta_id.major);
	le16_to_cpus(&sta_id.minor);
	printk(KERN_DEBUG "%s: Station identity  %04x:%04x:%04x:%04x\n",
	       dev->name, sta_id.id, sta_id.variant,
	       sta_id.major, sta_id.minor);

	switch (sta_id.id) {
	case 0x15:
		printk(KERN_ERR "%s: Primary firmware is active\n",
		       dev->name);
		return -ENODEV;
	case 0x14b:
		printk(KERN_ERR "%s: Tertiary firmware is active\n",
		       dev->name);
		return -ENODEV;
	case 0x1f:	/* Intersil, Agere, Symbol Spectrum24 */
	case 0x21:	/* Symbol Spectrum24 Trilogy */
		break;
	default:
		printk(KERN_NOTICE "%s: Unknown station ID, please report\n",
		       dev->name);
		break;
	}

	/* Default capabilities */
	priv->has_sensitivity = 1;
	priv->has_mwo = 0;
	priv->has_preamble = 0;
	priv->has_port3 = 1;
	priv->has_ibss = 1;
	priv->has_wep = 0;
	priv->has_big_wep = 0;
	priv->has_alt_txcntl = 0;
	priv->has_ext_scan = 0;
	priv->has_wpa = 0;
	priv->do_fw_download = 0;

	/* Determine capabilities from the firmware version */
	switch (priv->firmware_type) {
	case FIRMWARE_TYPE_AGERE:
		/* Lucent Wavelan IEEE, Lucent Orinoco, Cabletron RoamAbout,
		   ELSA, Melco, HP, IBM, Dell 1150, Compaq 110/210 */
		snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
			 "Lucent/Agere %d.%02d", sta_id.major, sta_id.minor);

		firmver = ((unsigned long)sta_id.major << 16) | sta_id.minor;

		priv->has_ibss = (firmver >= 0x60006);
		priv->has_wep = (firmver >= 0x40020);
		priv->has_big_wep = 1; /* FIXME: this is wrong - how do we tell
					  Gold cards from the others? */
		priv->has_mwo = (firmver >= 0x60000);
		priv->has_pm = (firmver >= 0x40020); /* Don't work in 7.52 ? */
		priv->ibss_port = 1;
		priv->has_hostscan = (firmver >= 0x8000a);
		priv->do_fw_download = 1;
		priv->broken_monitor = (firmver >= 0x80000);
		priv->has_alt_txcntl = (firmver >= 0x90000); /* All 9.x ? */
		priv->has_ext_scan = (firmver >= 0x90000); /* All 9.x ? */
		priv->has_wpa = (firmver >= 0x9002a);
		/* Tested with Agere firmware :
		 *	1.16 ; 4.08 ; 4.52 ; 6.04 ; 6.16 ; 7.28 => Jean II
		 * Tested CableTron firmware : 4.32 => Anton */
		break;
	case FIRMWARE_TYPE_SYMBOL:
		/* Symbol , 3Com AirConnect, Intel, Ericsson WLAN */
		/* Intel MAC : 00:02:B3:* */
		/* 3Com MAC : 00:50:DA:* */
		memset(tmp, 0, sizeof(tmp));
		/* Get the Symbol firmware version */
		err = hermes_read_ltv(hw, USER_BAP,
				      HERMES_RID_SECONDARYVERSION_SYMBOL,
				      SYMBOL_MAX_VER_LEN, NULL, &tmp);
		if (err) {
			printk(KERN_WARNING
			       "%s: Error %d reading Symbol firmware info. "
			       "Wildly guessing capabilities...\n",
			       dev->name, err);
			firmver = 0;
			tmp[0] = '\0';
		} else {
			/* The firmware revision is a string, the format is
			 * something like : "V2.20-01".
			 * Quick and dirty parsing... - Jean II
			 */
			firmver = ((tmp[1] - '0') << 16)
				| ((tmp[3] - '0') << 12)
				| ((tmp[4] - '0') << 8)
				| ((tmp[6] - '0') << 4)
				| (tmp[7] - '0');

			tmp[SYMBOL_MAX_VER_LEN] = '\0';
		}

		snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
			 "Symbol %s", tmp);

		priv->has_ibss = (firmver >= 0x20000);
		priv->has_wep = (firmver >= 0x15012);
		priv->has_big_wep = (firmver >= 0x20000);
		priv->has_pm = (firmver >= 0x20000 && firmver < 0x22000) ||
			       (firmver >= 0x29000 && firmver < 0x30000) ||
			       firmver >= 0x31000;
		priv->has_preamble = (firmver >= 0x20000);
		priv->ibss_port = 4;

		/* Symbol firmware is found on various cards, but
		 * there has been no attempt to check firmware
		 * download on non-spectrum_cs based cards.
		 *
		 * Given that the Agere firmware download works
		 * differently, we should avoid doing a firmware
		 * download with the Symbol algorithm on non-spectrum
		 * cards.
		 *
		 * For now we can identify a spectrum_cs based card
		 * because it has a firmware reset function.
		 */
		priv->do_fw_download = (priv->stop_fw != NULL);

		priv->broken_disableport = (firmver == 0x25013) ||
				(firmver >= 0x30000 && firmver <= 0x31000);
		priv->has_hostscan = (firmver >= 0x31001) ||
				     (firmver >= 0x29057 && firmver < 0x30000);
		/* Tested with Intel firmware : 0x20015 => Jean II */
		/* Tested with 3Com firmware : 0x15012 & 0x22001 => Jean II */
		break;
	case FIRMWARE_TYPE_INTERSIL:
		/* D-Link, Linksys, Adtron, ZoomAir, and many others...
		 * Samsung, Compaq 100/200 and Proxim are slightly
		 * different and less well tested */
		/* D-Link MAC : 00:40:05:* */
		/* Addtron MAC : 00:90:D1:* */
		snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
			 "Intersil %d.%d.%d", sta_id.major, sta_id.minor,
			 sta_id.variant);

		firmver = ((unsigned long)sta_id.major << 16) |
			((unsigned long)sta_id.minor << 8) | sta_id.variant;

		priv->has_ibss = (firmver >= 0x000700); /* FIXME */
		priv->has_big_wep = priv->has_wep = (firmver >= 0x000800);
		priv->has_pm = (firmver >= 0x000700);
		priv->has_hostscan = (firmver >= 0x010301);

		if (firmver >= 0x000800)
			priv->ibss_port = 0;
		else {
			printk(KERN_NOTICE "%s: Intersil firmware earlier "
			       "than v0.8.x - several features not supported\n",
			       dev->name);
			priv->ibss_port = 1;
		}
		break;
	}
	printk(KERN_DEBUG "%s: Firmware determined as %s\n", dev->name,
	       priv->fw_name);

	return 0;
}

static int orinoco_init(struct net_device *dev)
{
	struct orinoco_private *priv = netdev_priv(dev);
	hermes_t *hw = &priv->hw;
	int err = 0;
	struct hermes_idstring nickbuf;
	u16 reclen;
	int len;

	/* No need to lock, the hw_unavailable flag is already set in
	 * alloc_orinocodev() */
	priv->nicbuf_size = IEEE80211_MAX_FRAME_LEN + ETH_HLEN;

	/* Initialize the firmware */
	err = hermes_init(hw);
	if (err != 0) {
		printk(KERN_ERR "%s: failed to initialize firmware (err = %d)\n",
		       dev->name, err);
		goto out;
	}

	err = determine_firmware(dev);
	if (err != 0) {
		printk(KERN_ERR "%s: Incompatible firmware, aborting\n",
		       dev->name);
		goto out;
	}

	if (priv->do_fw_download) {
#ifdef CONFIG_HERMES_CACHE_FW_ON_INIT
		orinoco_cache_fw(priv, 0);
#endif

		err = orinoco_download(priv);
		if (err)
			priv->do_fw_download = 0;

		/* Check firmware version again */
		err = determine_firmware(dev);
		if (err != 0) {
			printk(KERN_ERR "%s: Incompatible firmware, aborting\n",
			       dev->name);
			goto out;
		}
	}

	if (priv->has_port3)
		printk(KERN_DEBUG "%s: Ad-hoc demo mode supported\n",
		       dev->name);
	if (priv->has_ibss)
		printk(KERN_DEBUG "%s: IEEE standard IBSS ad-hoc mode supported\n",
		       dev->name);
	if (priv->has_wep) {
		printk(KERN_DEBUG "%s: WEP supported, %s-bit key\n", dev->name,
		       priv->has_big_wep ? "104" : "40");
	}
	if (priv->has_wpa) {
		printk(KERN_DEBUG "%s: WPA-PSK supported\n", dev->name);
		if (orinoco_mic_init(priv)) {
			printk(KERN_ERR "%s: Failed to setup MIC crypto "
			       "algorithm. Disabling WPA support\n", dev->name);
			priv->has_wpa = 0;
		}
	}

	/* Now we have the firmware capabilities, allocate appropiate
	 * sized scan buffers */
	if (orinoco_bss_data_allocate(priv))
		goto out;
	orinoco_bss_data_init(priv);

	/* Get the MAC address */
	err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
			      ETH_ALEN, NULL, dev->dev_addr);
	if (err) {
		printk(KERN_WARNING "%s: failed to read MAC address!\n",
		       dev->name);
		goto out;
	}

	printk(KERN_DEBUG "%s: MAC address %pM\n",
	       dev->name, dev->dev_addr);

	/* Get the station name */
	err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
			      sizeof(nickbuf), &reclen, &nickbuf);
	if (err) {
		printk(KERN_ERR "%s: failed to read station name\n",
		       dev->name);
		goto out;
	}
	if (nickbuf.len)
		len = min(IW_ESSID_MAX_SIZE, (int)le16_to_cpu(nickbuf.len));
	else
		len = min(IW_ESSID_MAX_SIZE, 2 * reclen);
	memcpy(priv->nick, &nickbuf.val, len);
	priv->nick[len] = '\0';

	printk(KERN_DEBUG "%s: Station name \"%s\"\n", dev->name, priv->nick);

	err = orinoco_allocate_fid(dev);
	if (err) {
		printk(KERN_ERR "%s: failed to allocate NIC buffer!\n",
		       dev->name);
		goto out;
	}

	/* Get allowed channels */
	err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CHANNELLIST,
				  &priv->channel_mask);
	if (err) {
		printk(KERN_ERR "%s: failed to read channel list!\n",
		       dev->name);
		goto out;
	}

	/* Get initial AP density */
	err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE,
				  &priv->ap_density);
	if (err || priv->ap_density < 1 || priv->ap_density > 3)
		priv->has_sensitivity = 0;

	/* Get initial RTS threshold */
	err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
				  &priv->rts_thresh);
	if (err) {
		printk(KERN_ERR "%s: failed to read RTS threshold!\n",
		       dev->name);
		goto out;
	}

	/* Get initial fragmentation settings */
	if (priv->has_mwo)
		err = hermes_read_wordrec(hw, USER_BAP,
					  HERMES_RID_CNFMWOROBUST_AGERE,
					  &priv->mwo_robust);
	else
		err = hermes_read_wordrec(hw, USER_BAP,
					  HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
					  &priv->frag_thresh);
	if (err) {
		printk(KERN_ERR "%s: failed to read fragmentation settings!\n",
		       dev->name);
		goto out;
	}

	/* Power management setup */
	if (priv->has_pm) {
		priv->pm_on = 0;
		priv->pm_mcast = 1;
		err = hermes_read_wordrec(hw, USER_BAP,
					  HERMES_RID_CNFMAXSLEEPDURATION,
					  &priv->pm_period);
		if (err) {
			printk(KERN_ERR "%s: failed to read power management period!\n",
			       dev->name);
			goto out;
		}
		err = hermes_read_wordrec(hw, USER_BAP,
					  HERMES_RID_CNFPMHOLDOVERDURATION,
					  &priv->pm_timeout);
		if (err) {
			printk(KERN_ERR "%s: failed to read power management timeout!\n",
			       dev->name);
			goto out;
		}
	}

	/* Preamble setup */
	if (priv->has_preamble) {
		err = hermes_read_wordrec(hw, USER_BAP,
					  HERMES_RID_CNFPREAMBLE_SYMBOL,
					  &priv->preamble);
		if (err)
			goto out;
	}

	/* Set up the default configuration */
	priv->iw_mode = IW_MODE_INFRA;
	/* By default use IEEE/IBSS ad-hoc mode if we have it */
	priv->prefer_port3 = priv->has_port3 && (!priv->has_ibss);
	set_port_type(priv);
	priv->channel = 0; /* use firmware default */

	priv->promiscuous = 0;
	priv->encode_alg = IW_ENCODE_ALG_NONE;
	priv->tx_key = 0;
	priv->wpa_enabled = 0;
	priv->tkip_cm_active = 0;
	priv->key_mgmt = 0;
	priv->wpa_ie_len = 0;
	priv->wpa_ie = NULL;

	/* Make the hardware available, as long as it hasn't been
	 * removed elsewhere (e.g. by PCMCIA hot unplug) */
	spin_lock_irq(&priv->lock);
	priv->hw_unavailable--;
	spin_unlock_irq(&priv->lock);

	printk(KERN_DEBUG "%s: ready\n", dev->name);

 out:
	return err;
}

static const struct net_device_ops orinoco_netdev_ops = {
	.ndo_init		= orinoco_init,
	.ndo_open		= orinoco_open,
	.ndo_stop		= orinoco_stop,
	.ndo_start_xmit		= orinoco_xmit,
	.ndo_set_multicast_list	= orinoco_set_multicast_list,
	.ndo_change_mtu		= orinoco_change_mtu,
	.ndo_tx_timeout		= orinoco_tx_timeout,
	.ndo_get_stats		= orinoco_get_stats,
};

struct net_device
*alloc_orinocodev(int sizeof_card,
		  struct device *device,
		  int (*hard_reset)(struct orinoco_private *),
		  int (*stop_fw)(struct orinoco_private *, int))
{
	struct net_device *dev;
	struct orinoco_private *priv;

	dev = alloc_etherdev(sizeof(struct orinoco_private) + sizeof_card);
	if (!dev)
		return NULL;
	priv = netdev_priv(dev);
	priv->ndev = dev;
	if (sizeof_card)
		priv->card = (void *)((unsigned long)priv
				      + sizeof(struct orinoco_private));
	else
		priv->card = NULL;
	priv->dev = device;

	/* Setup / override net_device fields */
	dev->netdev_ops = &orinoco_netdev_ops;
	dev->watchdog_timeo = HZ; /* 1 second timeout */
	dev->ethtool_ops = &orinoco_ethtool_ops;
	dev->wireless_handlers = &orinoco_handler_def;
#ifdef WIRELESS_SPY
	priv->wireless_data.spy_data = &priv->spy_data;
	dev->wireless_data = &priv->wireless_data;
#endif
	/* we use the default eth_mac_addr for setting the MAC addr */

	/* Reserve space in skb for the SNAP header */
	dev->hard_header_len += ENCAPS_OVERHEAD;

	/* Set up default callbacks */
	priv->hard_reset = hard_reset;
	priv->stop_fw = stop_fw;

	spin_lock_init(&priv->lock);
	priv->open = 0;
	priv->hw_unavailable = 1; /* orinoco_init() must clear this
				   * before anything else touches the
				   * hardware */
	INIT_WORK(&priv->reset_work, orinoco_reset);
	INIT_WORK(&priv->join_work, orinoco_join_ap);
	INIT_WORK(&priv->wevent_work, orinoco_send_wevents);

	INIT_LIST_HEAD(&priv->rx_list);
	tasklet_init(&priv->rx_tasklet, orinoco_rx_isr_tasklet,
		     (unsigned long) dev);

	netif_carrier_off(dev);
	priv->last_linkstatus = 0xffff;

#if defined(CONFIG_HERMES_CACHE_FW_ON_INIT) || defined(CONFIG_PM_SLEEP)
	priv->cached_pri_fw = NULL;
	priv->cached_fw = NULL;
#endif

	/* Register PM notifiers */
	orinoco_register_pm_notifier(priv);

	return dev;
}
EXPORT_SYMBOL(alloc_orinocodev);

void free_orinocodev(struct net_device *dev)
{
	struct orinoco_private *priv = netdev_priv(dev);
	struct orinoco_rx_data *rx_data, *temp;

	/* If the tasklet is scheduled when we call tasklet_kill it
	 * will run one final time. However the tasklet will only
	 * drain priv->rx_list if the hw is still available. */
	tasklet_kill(&priv->rx_tasklet);

	/* Explicitly drain priv->rx_list */
	list_for_each_entry_safe(rx_data, temp, &priv->rx_list, list) {
		list_del(&rx_data->list);

		dev_kfree_skb(rx_data->skb);
		kfree(rx_data->desc);
		kfree(rx_data);
	}

	orinoco_unregister_pm_notifier(priv);
	orinoco_uncache_fw(priv);

	priv->wpa_ie_len = 0;
	kfree(priv->wpa_ie);
	orinoco_mic_free(priv);
	orinoco_bss_data_free(priv);
	free_netdev(dev);
}
EXPORT_SYMBOL(free_orinocodev);

static void orinoco_get_drvinfo(struct net_device *dev,
				struct ethtool_drvinfo *info)
{
	struct orinoco_private *priv = netdev_priv(dev);

	strncpy(info->driver, DRIVER_NAME, sizeof(info->driver) - 1);
	strncpy(info->version, DRIVER_VERSION, sizeof(info->version) - 1);
	strncpy(info->fw_version, priv->fw_name, sizeof(info->fw_version) - 1);
	if (dev->dev.parent)
		strncpy(info->bus_info, dev_name(dev->dev.parent),
			sizeof(info->bus_info) - 1);
	else
		snprintf(info->bus_info, sizeof(info->bus_info) - 1,
			 "PCMCIA %p", priv->hw.iobase);
}

static const struct ethtool_ops orinoco_ethtool_ops = {
	.get_drvinfo = orinoco_get_drvinfo,
	.get_link = ethtool_op_get_link,
};

/********************************************************************/
/* Module initialization                                            */
/********************************************************************/

/* Can't be declared "const" or the whole __initdata section will
 * become const */
static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION
	" (David Gibson <hermes@gibson.dropbear.id.au>, "
	"Pavel Roskin <proski@gnu.org>, et al)";

static int __init init_orinoco(void)
{
	printk(KERN_DEBUG "%s\n", version);
	return 0;
}

static void __exit exit_orinoco(void)
{
}

module_init(init_orinoco);
module_exit(exit_orinoco);