aboutsummaryrefslogtreecommitdiffstats
path: root/package/madwifi/patches/421-channel_handling.patch
blob: 781194eed7bed0faf649f84f62cc0dc6cafcb5cf (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
--- a/ath/if_ath.c
+++ b/ath/if_ath.c
@@ -148,7 +148,6 @@ static int ath_key_set(struct ieee80211v
 static void ath_key_update_begin(struct ieee80211vap *);
 static void ath_key_update_end(struct ieee80211vap *);
 static void ath_mode_init(struct net_device *);
-static void ath_setslottime(struct ath_softc *);
 static void ath_updateslot(struct net_device *);
 static int ath_beaconq_setup(struct ath_softc *);
 static int ath_beacon_alloc(struct ath_softc *, struct ieee80211_node *);
@@ -240,7 +239,7 @@ static void ath_setup_stationkey(struct 
 static void ath_setup_stationwepkey(struct ieee80211_node *);
 static void ath_setup_keycacheslot(struct ath_softc *, struct ieee80211_node *);
 static void ath_newassoc(struct ieee80211_node *, int);
-static int ath_getchannels(struct net_device *, u_int, HAL_BOOL, HAL_BOOL);
+static int ath_getchannels(struct net_device *);
 static void ath_led_event(struct ath_softc *, int);
 static void ath_update_txpow(struct ath_softc *);
 
@@ -265,7 +264,6 @@ static int ath_change_mtu(struct net_dev
 static int ath_ioctl(struct net_device *, struct ifreq *, int);
 
 static int ath_rate_setup(struct net_device *, u_int);
-static void ath_setup_subrates(struct net_device *);
 #ifdef ATH_SUPERG_XR
 static int ath_xr_rate_setup(struct net_device *);
 static void ath_grppoll_txq_setup(struct ath_softc *, int, int);
@@ -387,8 +385,6 @@ static void ath_fetch_idle_time(struct a
 
 /* calibrate every 30 secs in steady state but check every second at first. */
 static int ath_calinterval = ATH_SHORT_CALINTERVAL;
-static int ath_countrycode = CTRY_DEFAULT;	/* country code */
-static int ath_outdoor = AH_FALSE;		/* enable outdoor use */
 static int ath_xchanmode = AH_TRUE;		/* enable extended channels */
 static int ath_maxvaps = ATH_MAXVAPS_DEFAULT;   /* set default maximum vaps */
 static int bstuck_thresh = BSTUCK_THRESH;       /* Stuck beacon count required for reset */
@@ -396,9 +392,7 @@ static char *autocreate = NULL;
 static char *ratectl = DEF_RATE_CTL;
 static int rfkill = 0;
 static int tpc = 1;
-static int countrycode = -1;
 static int maxvaps = -1;
-static int outdoor = -1;
 static int xchanmode = -1;
 #include "ath_wprobe.c"
 static int beacon_cal = 1;
@@ -437,9 +431,7 @@ static struct notifier_block ath_event_b
 
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,52))
 MODULE_PARM(beacon_cal, "i");
-MODULE_PARM(countrycode, "i");
 MODULE_PARM(maxvaps, "i");
-MODULE_PARM(outdoor, "i");
 MODULE_PARM(xchanmode, "i");
 MODULE_PARM(rfkill, "i");
 #ifdef ATH_CAP_TPC
@@ -451,9 +443,7 @@ MODULE_PARM(ratectl, "s");
 #else
 #include <linux/moduleparam.h>
 module_param(beacon_cal, int, 0600);
-module_param(countrycode, int, 0600);
 module_param(maxvaps, int, 0600);
-module_param(outdoor, int, 0600);
 module_param(xchanmode, int, 0600);
 module_param(rfkill, int, 0600);
 #ifdef ATH_CAP_TPC
@@ -463,9 +453,7 @@ module_param(bstuck_thresh, int, 0600);
 module_param(autocreate, charp, 0600);
 module_param(ratectl, charp, 0600);
 #endif
-MODULE_PARM_DESC(countrycode, "Override default country code");
 MODULE_PARM_DESC(maxvaps, "Maximum VAPs");
-MODULE_PARM_DESC(outdoor, "Enable/disable outdoor use");
 MODULE_PARM_DESC(xchanmode, "Enable/disable extended channel mode");
 MODULE_PARM_DESC(rfkill, "Enable/disable RFKILL capability");
 #ifdef ATH_CAP_TPC
@@ -531,6 +519,50 @@ MODULE_PARM_DESC(ieee80211_debug, "Load-
 				(bssid)[0] |= (((id) << 2) | 0x02);	\
 		} while (0)
 
+static inline int ath_chan2mode(struct ieee80211_channel *c)
+{
+	if (IEEE80211_IS_CHAN_HALF(c))
+		return ATH_MODE_HALF;
+	else if (IEEE80211_IS_CHAN_QUARTER(c))
+		return ATH_MODE_QUARTER;
+	else
+		return ieee80211_chan2mode(c);
+}
+
+static inline int rate_hal2ieee(int dot11Rate, int f)
+{
+	int flag = dot11Rate & ~(IEEE80211_RATE_VAL);
+	dot11Rate &= IEEE80211_RATE_VAL;
+
+	if (f == 4) { /* Quarter */
+		if (dot11Rate == 4)
+			return 18 | flag;
+	}
+	return (dot11Rate * f) | flag;
+}
+
+static inline int rate_factor(int mode)
+{
+	int f;
+
+	/*
+	 * NB: Fix up rates. HAL returns half or quarter dot11Rates,
+	 * while the stack deals with full rates only
+	 */
+	switch(mode) {
+		case ATH_MODE_HALF:
+			f = 2;
+			break;
+		case ATH_MODE_QUARTER:
+			f = 4;
+			break;
+		default:
+			f = 1;
+			break;
+	}
+	return f;
+}
+
 /* Initialize ath_softc structure */
 
 int
@@ -647,14 +679,6 @@ ath_attach(u_int16_t devid, struct net_d
 	for (i = 0; i < sc->sc_keymax; i++)
 		ath_hal_keyreset(ah, i);
 
-	/*
-	 * Collect the channel list using the default country
-	 * code and including outdoor channels.  The 802.11 layer
-	 * is responsible for filtering this list based on settings
-	 * like the phy mode.
-	 */
-	if (countrycode != -1)
-		ath_countrycode = countrycode;
 	if (maxvaps != -1) {
 		ath_maxvaps = maxvaps;
 		if (ath_maxvaps < ATH_MAXVAPS_MIN)
@@ -662,17 +686,14 @@ ath_attach(u_int16_t devid, struct net_d
 		else if (ath_maxvaps > ATH_MAXVAPS_MAX)
 			ath_maxvaps = ATH_MAXVAPS_MAX;
 	}
-	if (outdoor != -1)
-		ath_outdoor = outdoor;
 	if (xchanmode != -1)
 		ath_xchanmode = xchanmode;
-	error = ath_getchannels(dev, ath_countrycode,
-			ath_outdoor, ath_xchanmode);
+	error = ath_getchannels(dev);
 	if (error != 0)
 		goto bad;
 
-	ic->ic_country_code = ath_countrycode;
-	ic->ic_country_outdoor = ath_outdoor;
+	ic->ic_country_code = CTRY_DEFAULT;
+	ic->ic_country_outdoor = 0;
 
 	IPRINTF(sc, "Switching rfkill capability %s\n",
 		rfkill ? "on" : "off");
@@ -686,9 +707,8 @@ ath_attach(u_int16_t devid, struct net_d
 	ath_rate_setup(dev, IEEE80211_MODE_11G);
 	ath_rate_setup(dev, IEEE80211_MODE_TURBO_A);
 	ath_rate_setup(dev, IEEE80211_MODE_TURBO_G);
-
-	/* Setup for half/quarter rates */
-	ath_setup_subrates(dev);
+	ath_rate_setup(dev, ATH_MODE_HALF);
+	ath_rate_setup(dev, ATH_MODE_QUARTER);
 
 	/* NB: setup here so ath_rate_update is happy */
 	ath_setcurmode(sc, IEEE80211_MODE_11A);
@@ -909,10 +929,6 @@ ath_attach(u_int16_t devid, struct net_d
 			IEEE80211_ATHC_COMP : 0);
 #endif
 
-#ifdef ATH_SUPERG_DYNTURBO
-	ic->ic_ath_cap |= (ath_hal_turboagsupported(ah, ath_countrycode) ? 
-			(IEEE80211_ATHC_TURBOP | IEEE80211_ATHC_AR) : 0);
-#endif
 #ifdef ATH_SUPERG_XR
 	ic->ic_ath_cap |= (ath_hal_xrsupported(ah) ? IEEE80211_ATHC_XR : 0);
 #endif
@@ -4466,17 +4482,17 @@ ath_mode_init(struct net_device *dev)
  * Set the slot time based on the current setting.
  */
 static void
-ath_setslottime(struct ath_softc *sc)
+ath_settiming(struct ath_softc *sc)
 {
-	struct ieee80211com *ic = &sc->sc_ic;
 	struct ath_hal *ah = sc->sc_ah;
+	u_int offset = getTimingOffset(sc);
 
-	if (sc->sc_slottimeconf > 0) /* manual override */
-		ath_hal_setslottime(ah, sc->sc_slottimeconf);
-	else if (ic->ic_flags & IEEE80211_F_SHSLOT)
-		ath_hal_setslottime(ah, HAL_SLOT_TIME_9);
-	else
-		ath_hal_setslottime(ah, HAL_SLOT_TIME_20);
+	if (sc->sc_slottimeconf > 0)
+		ath_hal_setslottime(ah, offset + sc->sc_slottimeconf);
+	if (sc->sc_acktimeconf > 0)
+		ath_hal_setacktimeout(ah, 2 * offset + sc->sc_acktimeconf);
+	if (sc->sc_ctstimeconf > 0)
+		ath_hal_setctstimeout(ah, 2 * offset + sc->sc_ctstimeconf);
 	sc->sc_updateslot = OK;
 }
 
@@ -4498,7 +4514,7 @@ ath_updateslot(struct net_device *dev)
 	if (ic->ic_opmode == IEEE80211_M_HOSTAP)
 		sc->sc_updateslot = UPDATE;
 	else if (dev->flags & IFF_RUNNING)
-		ath_setslottime(sc);
+		ath_settiming(sc);
 }
 
 #ifdef ATH_SUPERG_DYNTURBO
@@ -5342,7 +5358,7 @@ ath_beacon_send(struct ath_softc *sc, in
 		sc->sc_updateslot = COMMIT;	/* commit next beacon */
 		sc->sc_slotupdate = slot;
 	} else if ((sc->sc_updateslot == COMMIT) && (sc->sc_slotupdate == slot))
-		ath_setslottime(sc);		/* commit change to hardware */
+		ath_settiming(sc);		/* commit change to hardware */
 
 	if (bfaddr != 0) {
 		/*
@@ -7796,12 +7812,14 @@ ath_get_ivlen(struct ieee80211_key *k)
  * Get transmit rate index using rate in Kbps
  */
 static __inline int
-ath_tx_findindex(const HAL_RATE_TABLE *rt, int rate)
+ath_tx_findindex(struct ath_softc *sc, const HAL_RATE_TABLE *rt, int rate)
 {
 	unsigned int i, ndx = 0;
+	int f;
 
+	f = rate_factor(sc->sc_curmode);
 	for (i = 0; i < rt->rateCount; i++) {
-		if (rt->info[i].rateKbps == rate) {
+		if ((rt->info[i].rateKbps * f) == rate) {
 			ndx = i;
 			break;
 		}
@@ -8094,7 +8112,7 @@ ath_tx_start(struct net_device *dev, str
 		atype = HAL_PKT_TYPE_NORMAL;		/* default */
 
 		if (ismcast) {
-			rix = ath_tx_findindex(rt, vap->iv_mcast_rate);
+			rix = ath_tx_findindex(sc, rt, vap->iv_mcast_rate);
 			txrate = rt->info[rix].rateCode;
 			if (shortPreamble)
 				txrate |= rt->info[rix].shortPreamble;
@@ -9061,7 +9079,7 @@ ath_chan_change(struct ath_softc *sc, st
 	struct net_device *dev = sc->sc_dev;
 	enum ieee80211_phymode mode;
 
-	mode = ieee80211_chan2mode(chan);
+	mode = ath_chan2mode(chan);
 
 	ath_rate_setup(dev, mode);
 	ath_setcurmode(sc, mode);
@@ -10110,8 +10128,7 @@ ath_newassoc(struct ieee80211_node *ni, 
 }
 
 static int
-ath_getchannels(struct net_device *dev, u_int cc,
-	HAL_BOOL outdoor, HAL_BOOL xchanmode)
+ath_getchannels(struct net_device *dev)
 {
 	struct ath_softc *sc = dev->priv;
 	struct ieee80211com *ic = &sc->sc_ic;
@@ -10125,17 +10142,31 @@ ath_getchannels(struct net_device *dev, 
 		EPRINTF(sc, "Insufficient memory for channel table!\n");
 		return -ENOMEM;
 	}
+
+restart:
 	if (!ath_hal_init_channels(ah, chans, IEEE80211_CHAN_MAX, &nchan,
 	    ic->ic_regclassids, IEEE80211_REGCLASSIDS_MAX, &ic->ic_nregclass,
-	    cc, HAL_MODE_ALL, outdoor, xchanmode)) {
+	    ic->ic_country_code, HAL_MODE_ALL, ic->ic_country_outdoor, ath_xchanmode)) {
 		u_int32_t rd;
 
 		ath_hal_getregdomain(ah, &rd);
 		EPRINTF(sc, "Unable to collect channel list from HAL; "
-			"regdomain likely %u country code %u\n", rd, cc);
+			"regdomain likely %u country code %u\n", rd, ic->ic_country_code);
+		if ((ic->ic_country_code != CTRY_DEFAULT) ||
+			(ic->ic_country_outdoor != 0)) {
+			EPRINTF(sc, "Reverting to defaults\n");
+			ic->ic_country_code = CTRY_DEFAULT;
+			ic->ic_country_outdoor = 0;
+			goto restart;
+		}
 		kfree(chans);
 		return -EINVAL;
 	}
+#ifdef ATH_SUPERG_DYNTURBO
+	ic->ic_ath_cap &= ~(IEEE80211_ATHC_TURBOP | IEEE80211_ATHC_AR);
+	ic->ic_ath_cap |= (ath_hal_turboagsupported(ah, ic->ic_country_code) ?
+			(IEEE80211_ATHC_TURBOP | IEEE80211_ATHC_AR) : 0);
+#endif
 	/*
 	 * Convert HAL channels to ieee80211 ones.
 	 */
@@ -10379,7 +10410,7 @@ ath_xr_rate_setup(struct net_device *dev
 	struct ieee80211com *ic = &sc->sc_ic;
 	const HAL_RATE_TABLE *rt;
 	struct ieee80211_rateset *rs;
-	unsigned int i, maxrates;
+	unsigned int i, j, maxrates;
 	sc->sc_xr_rates = ath_hal_getratetable(ah, HAL_MODE_XR);
 	rt = sc->sc_xr_rates;
 	if (rt == NULL)
@@ -10392,57 +10423,16 @@ ath_xr_rate_setup(struct net_device *dev
 	} else
 		maxrates = rt->rateCount;
 	rs = &ic->ic_sup_xr_rates;
-	for (i = 0; i < maxrates; i++)
-		rs->rs_rates[i] = rt->info[i].dot11Rate;
-	rs->rs_nrates = maxrates;
+	for (j = 0, i = 0; i < maxrates; i++) {
+		if (!rt->info[i].valid)
+			continue;
+		rs->rs_rates[j++] = rt->info[i].dot11Rate;
+	}
+	rs->rs_nrates = j;
 	return 1;
 }
 #endif
 
-/* Setup half/quarter rate table support */
-static void
-ath_setup_subrates(struct net_device *dev)
-{
-	struct ath_softc *sc = dev->priv;
-	struct ath_hal *ah = sc->sc_ah;
-	struct ieee80211com *ic = &sc->sc_ic;
-	const HAL_RATE_TABLE *rt;
-	struct ieee80211_rateset *rs;
-	unsigned int i, maxrates;
-
-	sc->sc_half_rates = ath_hal_getratetable(ah, HAL_MODE_11A_HALF_RATE);
-	rt = sc->sc_half_rates;
-	if (rt != NULL) {
-		if (rt->rateCount > IEEE80211_RATE_MAXSIZE) {
-			DPRINTF(sc, ATH_DEBUG_ANY,
-				"The rate table is too small (%u > %u)\n",
-			       rt->rateCount, IEEE80211_RATE_MAXSIZE);
-			maxrates = IEEE80211_RATE_MAXSIZE;
-		} else
-			maxrates = rt->rateCount;
-		rs = &ic->ic_sup_half_rates;
-		for (i = 0; i < maxrates; i++)
-			rs->rs_rates[i] = rt->info[i].dot11Rate;
-		rs->rs_nrates = maxrates;
-	}
-
-	sc->sc_quarter_rates = ath_hal_getratetable(ah, HAL_MODE_11A_QUARTER_RATE);
-	rt = sc->sc_quarter_rates;
-	if (rt != NULL) {
-		if (rt->rateCount > IEEE80211_RATE_MAXSIZE) {
-			DPRINTF(sc, ATH_DEBUG_ANY,
-				"The rate table is too small (%u > %u)\n",
-			       rt->rateCount, IEEE80211_RATE_MAXSIZE);
-			maxrates = IEEE80211_RATE_MAXSIZE;
-		} else
-			maxrates = rt->rateCount;
-		rs = &ic->ic_sup_quarter_rates;
-		for (i = 0; i < maxrates; i++)
-			rs->rs_rates[i] = rt->info[i].dot11Rate;
-		rs->rs_nrates = maxrates;
-	}
-}
-
 static int
 ath_rate_setup(struct net_device *dev, u_int mode)
 {
@@ -10451,7 +10441,7 @@ ath_rate_setup(struct net_device *dev, u
 	struct ieee80211com *ic = &sc->sc_ic;
 	const HAL_RATE_TABLE *rt;
 	struct ieee80211_rateset *rs;
-	unsigned int i, maxrates;
+	unsigned int i, j, maxrates, f;
 
 	switch (mode) {
 	case IEEE80211_MODE_11A:
@@ -10469,6 +10459,12 @@ ath_rate_setup(struct net_device *dev, u
 	case IEEE80211_MODE_TURBO_G:
 		sc->sc_rates[mode] = ath_hal_getratetable(ah, HAL_MODE_108G);
 		break;
+	case ATH_MODE_HALF:
+		sc->sc_rates[mode] = ath_hal_getratetable(ah, HAL_MODE_11A_HALF_RATE);
+		break;
+	case ATH_MODE_QUARTER:
+		sc->sc_rates[mode] = ath_hal_getratetable(ah, HAL_MODE_11A_QUARTER_RATE);
+		break;
 	default:
 		DPRINTF(sc, ATH_DEBUG_ANY, "Invalid mode %u\n", mode);
 		return 0;
@@ -10483,10 +10479,16 @@ ath_rate_setup(struct net_device *dev, u
 		maxrates = IEEE80211_RATE_MAXSIZE;
 	} else
 		maxrates = rt->rateCount;
+
+	/* NB: quarter/half rate channels hijack the 11A rateset */
+	if (mode >= IEEE80211_MODE_MAX)
+		return 1;
+
 	rs = &ic->ic_sup_rates[mode];
 	for (i = 0; i < maxrates; i++)
 		rs->rs_rates[i] = rt->info[i].dot11Rate;
 	rs->rs_nrates = maxrates;
+
 	return 1;
 }
 
@@ -10515,13 +10517,18 @@ ath_setcurmode(struct ath_softc *sc, enu
 		{   0, 500, 130 },
 	};
 	const HAL_RATE_TABLE *rt;
-	unsigned int i, j;
+	unsigned int i, j, f;
 
+	/*
+	 * NB: Fix up rixmap. HAL returns half or quarter dot11Rates,
+	 * while the stack deals with full rates only
+	 */
+	f = rate_factor(mode);
 	memset(sc->sc_rixmap, 0xff, sizeof(sc->sc_rixmap));
 	rt = sc->sc_rates[mode];
 	KASSERT(rt != NULL, ("no h/w rate set for phy mode %u", mode));
 	for (i = 0; i < rt->rateCount; i++)
-		sc->sc_rixmap[rt->info[i].dot11Rate & IEEE80211_RATE_VAL] = i;
+		sc->sc_rixmap[rate_hal2ieee(rt->info[i].dot11Rate, f) & IEEE80211_RATE_VAL] = i;
 	memset(sc->sc_hwmap, 0, sizeof(sc->sc_hwmap));
 	for (i = 0; i < 32; i++) {
 		u_int8_t ix = rt->rateCodeToIndex[i];
@@ -10531,7 +10538,7 @@ ath_setcurmode(struct ath_softc *sc, enu
 			continue;
 		}
 		sc->sc_hwmap[i].ieeerate =
-			rt->info[ix].dot11Rate & IEEE80211_RATE_VAL;
+			rate_hal2ieee(rt->info[ix].dot11Rate, f) & IEEE80211_RATE_VAL;
 		if (rt->info[ix].shortPreamble ||
 		    rt->info[ix].phy == IEEE80211_T_OFDM)
 			sc->sc_hwmap[i].flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
@@ -10932,9 +10939,115 @@ enum {
 	ATH_MAXVAPS  		= 26,
 	ATH_INTMIT			= 27,
 	ATH_NOISE_IMMUNITY	= 28,
-	ATH_OFDM_WEAK_DET	= 29
+	ATH_OFDM_WEAK_DET	= 29,
+	ATH_CHANBW		= 30,
+	ATH_OUTDOOR		= 31,
 };
 
+/*
+ * perform the channel related sysctl, reload the channel list
+ * and try to stay on the current frequency
+ */
+static int ath_sysctl_setchanparam(struct ath_softc *sc, unsigned long ctl, u_int val)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	struct ath_hal *ah = sc->sc_ah;
+	struct ieee80211_channel *c = NULL;
+	struct ieee80211vap *vap;
+	u_int16_t freq = 0;
+	struct ifreq ifr;
+	void *ptr;
+	u32 *reg;
+
+	if (ic->ic_curchan != IEEE80211_CHAN_ANYC)
+		freq = ic->ic_curchan->ic_freq;
+
+	switch(ctl) {
+	case ATH_REGDOMAIN:
+		ptr = ah;
+		ptr += sizeof(struct ath_hal);
+		ptr += 116;
+		reg = ptr;
+		*reg = val;
+		return 0;
+	case ATH_COUNTRYCODE:
+		ic->ic_country_code = val;
+		break;
+	case ATH_OUTDOOR:
+		ic->ic_country_outdoor = val;
+		break;
+	case ATH_CHANBW:
+		switch(val) {
+		case 0:
+		case 5:
+		case 10:
+		case 20:
+		case 40:
+			if (ath_hal_setcapability(ah, HAL_CAP_CHANBW, 1, val, NULL) == AH_TRUE) {
+				sc->sc_chanbw = val;
+				break;
+			}
+		default:
+			return -EINVAL;
+		}
+		break;
+	}
+
+	if (ic->ic_curchan != IEEE80211_CHAN_ANYC)
+		freq = ic->ic_curchan->ic_freq;
+
+	/* clear out any old state */
+	TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
+		vap->iv_des_mode = IEEE80211_MODE_AUTO;
+		vap->iv_des_chan = IEEE80211_CHAN_ANYC;
+	}
+	ieee80211_scan_flush(ic);
+
+	IEEE80211_LOCK_IRQ(ic);
+	ath_getchannels(sc->sc_dev);
+	ieee80211_update_channels(ic, 0);
+	if (freq)
+		c = ieee80211_find_channel(ic, freq, IEEE80211_MODE_AUTO);
+	if (!c)
+		c = &ic->ic_channels[0];
+	ic->ic_curchan = c;
+	ic->ic_bsschan = c;
+	ic->ic_curmode = IEEE80211_MODE_AUTO;
+	IEEE80211_UNLOCK_IRQ(ic);
+
+	if (!(sc->sc_dev->flags & IFF_RUNNING)) {
+		ic->ic_bsschan = IEEE80211_CHAN_ANYC;
+		return 0;
+	}
+
+#ifndef ifr_media
+#define    ifr_media       ifr_ifru.ifru_ivalue
+#endif
+	memset(&ifr, 0, sizeof(ifr));
+	ifr.ifr_media = ic->ic_media.ifm_cur->ifm_media & ~IFM_MMASK;
+	ifr.ifr_media |= IFM_MAKEMODE(IEEE80211_MODE_AUTO);
+	ifmedia_ioctl(ic->ic_dev, &ifr, &ic->ic_media, SIOCSIFMEDIA);
+
+	/* apply the channel to the hw */
+	ath_set_channel(ic);
+
+	TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
+		struct net_device *dev = vap->iv_dev;
+
+		/* reactivate all active vaps */
+		vap->iv_state = IEEE80211_S_SCAN;
+		if ((vap->iv_opmode == IEEE80211_M_HOSTAP) ||
+			(vap->iv_opmode == IEEE80211_M_MONITOR) ||
+			(vap->iv_opmode == IEEE80211_M_WDS))
+			ieee80211_new_state(vap, IEEE80211_S_RUN, 0);
+		else
+			ieee80211_new_state(vap, IEEE80211_S_INIT, -1);
+	}
+
+	return 0;
+}
+
+
 static int
 ath_sysctl_set_intmit(struct ath_softc *sc, long ctl, u_int val)
 {
@@ -11013,6 +11126,7 @@ static int
 ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl, write, filp, buffer, lenp, ppos)
 {
 	struct ath_softc *sc = ctl->extra1;
+	struct ieee80211com *ic = &sc->sc_ic;
 	struct ath_hal *ah = sc->sc_ah;
 	u_int val;
 	u_int tab_3_val[3];
@@ -11036,25 +11150,31 @@ ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl
 				lenp, ppos);
 		if (ret == 0) {
 			switch ((long)ctl->extra2) {
+			case ATH_REGDOMAIN:
+			case ATH_COUNTRYCODE:
+			case ATH_CHANBW:
+				ret = ath_sysctl_setchanparam(sc, (long) ctl->extra2, val);
+				break;
 			case ATH_SLOTTIME:
-				if (val > 0) {
-					if (!ath_hal_setslottime(ah, val))
-						ret = -EINVAL;
-					else
-						sc->sc_slottimeconf = val;
-				} else {
-					/* disable manual override */
+				if (val > 0)
+					sc->sc_slottimeconf = val;
+				else
 					sc->sc_slottimeconf = 0;
-					ath_setslottime(sc);
-				}
+				ath_settiming(sc);
 				break;
 			case ATH_ACKTIMEOUT:
-				if (!ath_hal_setacktimeout(ah, val))
-					ret = -EINVAL;
+				if (val > 0)
+					sc->sc_acktimeconf = val;
+				else
+					sc->sc_acktimeconf = 0;
+				ath_settiming(sc);
 				break;
 			case ATH_CTSTIMEOUT:
-				if (!ath_hal_setctstimeout(ah, val))
-					ret = -EINVAL;
+				if (val > 0)
+					sc->sc_ctstimeconf = val;
+				else
+					sc->sc_ctstimeconf = 0;
+				ath_settiming(sc);
 				break;
 			case ATH_SOFTLED:
 				if (val != sc->sc_softled) {
@@ -11206,7 +11326,12 @@ ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl
 			}
 		}
 	} else {
+		void *ptr;
+		u32 *reg;
 		switch ((long)ctl->extra2) {
+		case ATH_CHANBW:
+			val = sc->sc_chanbw ?: 20;
+			break;
 		case ATH_SLOTTIME:
 			val = ath_hal_getslottime(ah);
 			break;
@@ -11225,11 +11350,18 @@ ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl
 		case ATH_COUNTRYCODE:
 			ath_hal_getcountrycode(ah, &val);
 			break;
+		case ATH_OUTDOOR:
+			val = ic->ic_country_outdoor;
+			break;
 		case ATH_MAXVAPS:
 			val = ath_maxvaps;
 			break;
 		case ATH_REGDOMAIN:
-			ath_hal_getregdomain(ah, &val);
+			ptr = ah;
+			ptr += sizeof(struct ath_hal);
+			ptr += 116;
+			reg = ptr;
+			val = *reg;
 			break;
 		case ATH_DEBUG:
 			val = sc->sc_debug | ath_debug_global;
@@ -11338,11 +11470,17 @@ static const ctl_table ath_sysctl_templa
 	},
 	{ .ctl_name	= CTL_AUTO,
 	  .procname	= "countrycode",
-	  .mode		= 0444,
+	  .mode		= 0644,
 	  .proc_handler	= ath_sysctl_halparam,
 	  .extra2	= (void *)ATH_COUNTRYCODE,
 	},
 	{ .ctl_name	= CTL_AUTO,
+	  .procname	= "outdoor",
+	  .mode		= 0644,
+	  .proc_handler	= ath_sysctl_halparam,
+	  .extra2	= (void *)ATH_OUTDOOR,
+	},
+	{ .ctl_name	= CTL_AUTO,
 	  .procname	= "maxvaps",
 	  .mode		= 0444,
 	  .proc_handler	= ath_sysctl_halparam,
@@ -11350,7 +11488,7 @@ static const ctl_table ath_sysctl_templa
 	},
 	{ .ctl_name	= CTL_AUTO,
 	  .procname	= "regdomain",
-	  .mode		= 0444,
+	  .mode		= 0644,
 	  .proc_handler	= ath_sysctl_halparam,
 	  .extra2	= (void *)ATH_REGDOMAIN,
 	},
@@ -11413,6 +11551,12 @@ static const ctl_table ath_sysctl_templa
 	  .extra2	= (void *)ATH_ACKRATE,
 	},
 	{ .ctl_name	= CTL_AUTO,
+	  .procname	= "channelbw",
+	  .mode		= 0644,
+	  .proc_handler	= ath_sysctl_halparam,
+	  .extra2	= (void *)ATH_CHANBW,
+	},
+	{ .ctl_name	= CTL_AUTO,
 	  .procname     = "rp",
 	  .mode         = 0200,
 	  .proc_handler = ath_sysctl_halparam,
@@ -11653,13 +11797,6 @@ static ctl_table ath_static_sysctls[] = 
 	},
 #endif
 	{ .ctl_name	= CTL_AUTO,
-	  .procname	= "countrycode",
-	  .mode		= 0444,
-	  .data		= &ath_countrycode,
-	  .maxlen	= sizeof(ath_countrycode),
-	  .proc_handler	= proc_dointvec
-	},
-	{ .ctl_name	= CTL_AUTO,
 	  .procname	= "maxvaps",
 	  .mode		= 0444,
 	  .data		= &ath_maxvaps,
@@ -11667,13 +11804,6 @@ static ctl_table ath_static_sysctls[] = 
 	  .proc_handler	= proc_dointvec
 	},
 	{ .ctl_name	= CTL_AUTO,
-	  .procname	= "outdoor",
-	  .mode		= 0444,
-	  .data		= &ath_outdoor,
-	  .maxlen	= sizeof(ath_outdoor),
-	  .proc_handler	= proc_dointvec
-	},
-	{ .ctl_name	= CTL_AUTO,
 	  .procname	= "xchanmode",
 	  .mode		= 0444,
 	  .data		= &ath_xchanmode,
--- a/ath/if_athvar.h
+++ b/ath/if_athvar.h
@@ -689,16 +689,17 @@ struct ath_softc {
 	int8_t sc_ofdm_weak_det; /* OFDM weak frames detection, -1 == auto */
 
 	/* rate tables */
-	const HAL_RATE_TABLE *sc_rates[IEEE80211_MODE_MAX];
+#define ATH_MODE_HALF		(IEEE80211_MODE_MAX)
+#define ATH_MODE_QUARTER	(IEEE80211_MODE_MAX + 1)
+	const HAL_RATE_TABLE *sc_rates[IEEE80211_MODE_MAX + 2];
 	const HAL_RATE_TABLE *sc_currates;	/* current rate table */
 	const HAL_RATE_TABLE *sc_xr_rates;	/* XR rate table */
-	const HAL_RATE_TABLE *sc_half_rates;	/* half rate table */
-	const HAL_RATE_TABLE *sc_quarter_rates;	/* quarter rate table */
 	HAL_OPMODE sc_opmode;			/* current hal operating mode */
 	enum ieee80211_phymode sc_curmode;	/* current phy mode */
 	u_int16_t sc_curtxpow;			/* current tx power limit */
 	u_int16_t sc_curaid;			/* current association id */
 	HAL_CHANNEL sc_curchan;			/* current h/w channel */
+	u_int8_t sc_chanbw;				/* channel bandwidth */
 	u_int8_t sc_curbssid[IEEE80211_ADDR_LEN];
 	u_int8_t	sc_rixmap[256];			/* IEEE to h/w rate table ix */
 	struct {
@@ -809,6 +810,8 @@ struct ath_softc {
 	u_int32_t sc_dturbo_bw_turbo;		/* bandwidth threshold */
 #endif
 	u_int sc_slottimeconf;			/* manual override for slottime */
+	u_int sc_acktimeconf;			/* manual override for acktime */
+	u_int sc_ctstimeconf;			/* manual override for ctstime */
 
 	struct timer_list sc_dfs_excl_timer;	/* mark expiration timer task */
 	struct timer_list sc_dfs_cac_timer;	/* dfs wait timer */
@@ -827,6 +830,7 @@ struct ath_softc {
 	int sc_rp_num;
 	int sc_rp_min;
 	HAL_BOOL (*sc_rp_analyse)(struct ath_softc *sc);
+	struct ATH_TQ_STRUCT sc_refresh_tq;
 	struct ATH_TQ_STRUCT sc_rp_tq;
 	
 	int sc_rp_ignored;			/* if set, we ignored all 
@@ -942,6 +946,48 @@ int ar_device(int devid);
 	  DEV_NAME(_v->iv_ic->ic_dev))
 
 void ath_radar_detected(struct ath_softc *sc, const char* message);
+static inline u_int getTimingOffset(struct ath_softc *sc)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	u_int usec = 9;
+	if (IEEE80211_IS_CHAN_ANYG(ic->ic_curchan)) {
+		usec = 20;
+		if (ic->ic_flags & IEEE80211_F_SHSLOT)
+			usec = 9;
+	} else if (IEEE80211_IS_CHAN_A(ic->ic_curchan))
+		usec = 9;
+
+	if (IEEE80211_IS_CHAN_TURBO(ic->ic_curchan))
+		usec = 6;
+
+	if (IEEE80211_IS_CHAN_HALF(ic->ic_curchan))
+		usec = 13;
+	else if (IEEE80211_IS_CHAN_QUARTER(ic->ic_curchan))
+		usec = 21;
+	return usec;
+}
+
+static inline void ath_get_timings(struct ath_softc *sc, u_int *t_slot, u_int *t_sifs, u_int *t_difs)
+{
+	struct ieee80211_channel *c = sc->sc_ic.ic_curchan;
+
+	*t_slot = getTimingOffset(sc) + sc->sc_slottimeconf;
+
+	if (IEEE80211_IS_CHAN_HALF(c)) {
+		*t_sifs = 32;
+		*t_difs = 56;
+	} else if (IEEE80211_IS_CHAN_QUARTER(c)) {
+		*t_sifs = 64;
+		*t_difs = 112;
+	} else if (IEEE80211_IS_CHAN_TURBO(c)) {
+		*t_sifs = 8;
+		*t_difs = 28;
+	} else {
+		*t_sifs = 16;
+		*t_difs = 28;
+	}
+}
+
 
 struct ath_hw_detect {
 	const char *vendor_name;
--- a/tools/athctrl.c
+++ b/tools/athctrl.c
@@ -118,7 +118,7 @@ CMD(athctrl)(int argc, char *argv[])
 	}
 
 	if (distance >= 0) {
-	    	int slottime = 9 + (distance / 300) + ((distance % 300) ? 1 : 0);
+		int slottime = (distance / 300) + ((distance % 300) ? 1 : 0);
 		int acktimeout = slottime * 2 + 3;
 		int ctstimeout = slottime * 2 + 3;
 
--- a/net80211/ieee80211.c
+++ b/net80211/ieee80211.c
@@ -243,34 +243,17 @@ static const  struct country_code_to_str
 	{CTRY_ZIMBABWE,             "ZW"}
 };
 
-int
-ieee80211_ifattach(struct ieee80211com *ic)
+void ieee80211_update_channels(struct ieee80211com *ic, int init)
 {
-	struct net_device *dev = ic->ic_dev;
 	struct ieee80211_channel *c;
+	struct ieee80211vap *vap;
 	struct ifmediareq imr;
+	int ext = 0;
 	int i;
 
-	_MOD_INC_USE(THIS_MODULE, return -ENODEV);
-
-	/*
-	 * Pick an initial operating mode until we have a vap
-	 * created to lock it down correctly.  This is only
-	 * drivers have something defined for configuring the
-	 * hardware at startup.
-	 */
-	ic->ic_opmode = IEEE80211_M_STA;	/* everyone supports this */
-
-	/*
-	 * Fill in 802.11 available channel set, mark
-	 * all available channels as active, and pick
-	 * a default channel if not already specified.
-	 */
-	KASSERT(0 < ic->ic_nchans && ic->ic_nchans < IEEE80211_CHAN_MAX,
-		("invalid number of channels specified: %u", ic->ic_nchans));
 	memset(ic->ic_chan_avail, 0, sizeof(ic->ic_chan_avail));
-	ic->ic_modecaps |= 1 << IEEE80211_MODE_AUTO;
 	ic->ic_max_txpower = IEEE80211_TXPOWER_MIN;
+	ic->ic_modecaps = 1 << IEEE80211_MODE_AUTO;
 
 	for (i = 0; i < ic->ic_nchans; i++) {
 		c = &ic->ic_channels[i];
@@ -298,6 +281,8 @@ ieee80211_ifattach(struct ieee80211com *
 			ic->ic_modecaps |= 1 << IEEE80211_MODE_TURBO_A;
 		if (IEEE80211_IS_CHAN_108G(c))
 			ic->ic_modecaps |= 1 << IEEE80211_MODE_TURBO_G;
+		if (IEEE80211_IS_CHAN_HALF(c) || IEEE80211_IS_CHAN_QUARTER(c))
+			ext = 1;
 	}
 	/* Initialize candidate channels to all available */
 	memcpy(ic->ic_chan_active, ic->ic_chan_avail,
@@ -311,11 +296,58 @@ ieee80211_ifattach(struct ieee80211com *
 	 * When 11g is supported, force the rate set to
 	 * include basic rates suitable for a mixed b/g bss.
 	 */
-	if (ic->ic_modecaps & (1 << IEEE80211_MODE_11G))
+	if ((ic->ic_modecaps & (1 << IEEE80211_MODE_11G)) && !ext)
 		ieee80211_set11gbasicrates(
 			&ic->ic_sup_rates[IEEE80211_MODE_11G],
 			IEEE80211_MODE_11G);
 
+	if (init)
+		return;
+
+	ieee80211_media_setup(ic, &ic->ic_media, ic->ic_caps, NULL, NULL);
+	ieee80211com_media_status(ic->ic_dev, &imr);
+	ifmedia_set(&ic->ic_media, imr.ifm_active);
+
+	TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
+		struct ieee80211vap *avp;
+		TAILQ_FOREACH(avp, &vap->iv_wdslinks, iv_wdsnext) {
+			(void) ieee80211_media_setup(ic, &vap->iv_media, vap->iv_caps, NULL, NULL);
+			ieee80211_media_status(vap->iv_dev, &imr);
+			ifmedia_set(&vap->iv_media, imr.ifm_active);
+		}
+		(void) ieee80211_media_setup(ic, &vap->iv_media, vap->iv_caps, NULL, NULL);
+		ieee80211_media_status(vap->iv_dev, &imr);
+		ifmedia_set(&vap->iv_media, imr.ifm_active);
+	}
+}
+EXPORT_SYMBOL(ieee80211_update_channels);
+
+int
+ieee80211_ifattach(struct ieee80211com *ic)
+{
+	struct net_device *dev = ic->ic_dev;
+	struct ieee80211_channel *c;
+	struct ifmediareq imr;
+
+	_MOD_INC_USE(THIS_MODULE, return -ENODEV);
+
+	/*
+	 * Pick an initial operating mode until we have a vap
+	 * created to lock it down correctly.  This is only
+	 * drivers have something defined for configuring the
+	 * hardware at startup.
+	 */
+	ic->ic_opmode = IEEE80211_M_STA;	/* everyone supports this */
+
+	/*
+	 * Fill in 802.11 available channel set, mark
+	 * all available channels as active, and pick
+	 * a default channel if not already specified.
+	 */
+	KASSERT(0 < ic->ic_nchans && ic->ic_nchans < IEEE80211_CHAN_MAX,
+		("invalid number of channels specified: %u", ic->ic_nchans));
+	ieee80211_update_channels(ic, 1);
+
 	/* Setup initial channel settings */
 	ic->ic_bsschan = IEEE80211_CHAN_ANYC;
 	/* Arbitrarily pick the first channel */
@@ -327,6 +359,7 @@ ieee80211_ifattach(struct ieee80211com *
 	/* Enable WME by default, if we're capable. */
 	if (ic->ic_caps & IEEE80211_C_WME)
 		ic->ic_flags |= IEEE80211_F_WME;
+
 	(void) ieee80211_setmode(ic, ic->ic_curmode);
 
 	/* Store default beacon interval, as nec. */
@@ -763,7 +796,8 @@ ieee80211_media_setup(struct ieee80211co
 	struct ieee80211_rateset allrates;
 
 	/* Fill in media characteristics. */
-	ifmedia_init(media, 0, media_change, media_stat);
+	if (media_change || media_stat)
+		ifmedia_init(media, 0, media_change, media_stat);
 	maxrate = 0;
 	memset(&allrates, 0, sizeof(allrates));
 
@@ -793,7 +827,7 @@ ieee80211_media_setup(struct ieee80211co
 			ADD(media, IFM_AUTO, mopt | IFM_IEEE80211_WDS);
 		if (mode == IEEE80211_MODE_AUTO)
 			continue;
-		rs = &ic->ic_sup_rates[mode];
+		rs = &ic->ic_sup_rates[ieee80211_chan2ratemode(ic->ic_curchan, mode)];
 
 		for (i = 0; i < rs->rs_nrates; i++) {
 			rate = rs->rs_rates[i];
@@ -1207,7 +1241,7 @@ ieee80211_announce(struct ieee80211com *
 		if ((ic->ic_modecaps & (1 << mode)) == 0)
 			continue;
 		if_printf(dev, "%s rates: ", ieee80211_phymode_name[mode]);
-		rs = &ic->ic_sup_rates[mode];
+		rs = &ic->ic_sup_rates[ieee80211_chan2ratemode(ic->ic_curchan, mode)];
 		for (i = 0; i < rs->rs_nrates; i++) {
 			rate = rs->rs_rates[i];
 			mword = ieee80211_rate2media(ic, rate, mode);
@@ -1417,7 +1451,7 @@ ieee80211com_media_change(struct net_dev
 			 * now so drivers have a consistent state.
 			 */
 			KASSERT(vap->iv_bss != NULL, ("no bss node"));
-			vap->iv_bss->ni_rates = ic->ic_sup_rates[newphymode];
+			vap->iv_bss->ni_rates = ic->ic_sup_rates[ieee80211_chan2ratemode(ic->ic_curchan, newphymode)];
 		}
 		error = -ENETRESET;
 	}
@@ -1435,7 +1469,7 @@ findrate(struct ieee80211com *ic, enum i
 {
 #define	IEEERATE(_ic,_m,_i) \
 	((_ic)->ic_sup_rates[_m].rs_rates[_i] & IEEE80211_RATE_VAL)
-	int i, nrates = ic->ic_sup_rates[mode].rs_nrates;
+	int i, nrates = ic->ic_sup_rates[ieee80211_chan2ratemode(ic->ic_curchan, mode)].rs_nrates;
 	for (i = 0; i < nrates; i++)
 		if (IEEERATE(ic, mode, i) == rate)
 			return i;
@@ -1881,11 +1915,6 @@ ieee80211_build_countryie(struct ieee802
 			if (ieee80211_chan2mode(c) != curmode_noturbo)
 				continue;
 
-			/* Skip half/quarter rate channels */
-			if (IEEE80211_IS_CHAN_HALF(c) ||
-			    IEEE80211_IS_CHAN_QUARTER(c))
-				continue;
-
 			if (*cur_runlen == 0) {
 				(*cur_runlen)++;
 				*cur_pow = c->ic_maxregpower;
@@ -1919,7 +1948,7 @@ void
 ieee80211_build_sc_ie(struct ieee80211com *ic)
 {
 	struct ieee80211_ie_sc *ie = &ic->ic_sc_ie;
-	int i, j;
+	int i, j, k;
 	struct ieee80211_channel *c;
 	u_int8_t prevchan;
 
--- a/net80211/ieee80211_var.h
+++ b/net80211/ieee80211_var.h
@@ -336,8 +336,6 @@ struct ieee80211com {
 	u_int8_t ic_nopened;			/* VAPs been opened */
 	struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX];
 	struct ieee80211_rateset ic_sup_xr_rates;
-	struct ieee80211_rateset ic_sup_half_rates;
-	struct ieee80211_rateset ic_sup_quarter_rates;
 	u_int16_t ic_modecaps;			/* set of mode capabilities */
 	u_int16_t ic_curmode;			/* current mode */
 	u_int16_t ic_lintval;			/* beacon interval */
@@ -715,6 +713,7 @@ MALLOC_DECLARE(M_80211_VAP);
 
 int ieee80211_ifattach(struct ieee80211com *);
 void ieee80211_ifdetach(struct ieee80211com *);
+void ieee80211_update_channels(struct ieee80211com *ic, int);
 int ieee80211_vap_setup(struct ieee80211com *, struct net_device *,
 	const char *, int, int, struct ieee80211vap *);
 int ieee80211_vap_attach(struct ieee80211vap *, ifm_change_cb_t, ifm_stat_cb_t);
@@ -794,6 +793,23 @@ ieee80211_anyhdrspace(struct ieee80211co
 	return size;
 }
 
+static __inline int
+ieee80211_chan2ratemode(struct ieee80211_channel *c, int mode)
+{
+	if (mode == -1)
+		mode = ieee80211_chan2mode(c);
+
+	/*
+	 * Use 11a rateset for half/quarter to restrict things
+	 * to pure OFDM
+	 */
+	if (IEEE80211_IS_CHAN_HALF(c) ||
+		IEEE80211_IS_CHAN_QUARTER(c))
+		return IEEE80211_MODE_11A;
+
+	return mode;
+}
+
 /* Macros to print MAC address used in 802.11 headers */
 
 #define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
--- a/net80211/ieee80211_node.c
+++ b/net80211/ieee80211_node.c
@@ -287,7 +287,7 @@ ieee80211_node_set_chan(struct ieee80211
 		ni->ni_rates = ic->ic_sup_xr_rates;
 	else
 #endif
-	ni->ni_rates = ic->ic_sup_rates[ieee80211_chan2mode(chan)];
+	ni->ni_rates = ic->ic_sup_rates[ieee80211_chan2ratemode(chan, -1)];
 }
 
 static __inline void
@@ -387,6 +387,8 @@ ieee80211_create_ibss(struct ieee80211va
 	ic->ic_bsschan = chan;
 	ieee80211_node_set_chan(ic, ni);
 	ic->ic_curmode = ieee80211_chan2mode(chan);
+	ni->ni_rates = ic->ic_sup_rates[ieee80211_chan2ratemode(chan, -1)];
+
 	spin_lock_irqsave(&channel_lock, flags);
 	ieee80211_scan_set_bss_channel(ic, ic->ic_bsschan);
 	spin_unlock_irqrestore(&channel_lock, flags);
@@ -394,14 +396,8 @@ ieee80211_create_ibss(struct ieee80211va
 	/* Update country ie information */
 	ieee80211_build_countryie(ic);
 
-	if (IEEE80211_IS_CHAN_HALF(chan)) {
-		ni->ni_rates = ic->ic_sup_half_rates;
-	} else if (IEEE80211_IS_CHAN_QUARTER(chan)) {
-		ni->ni_rates = ic->ic_sup_quarter_rates;
-	}
-
-	if ((vap->iv_flags & IEEE80211_F_PUREG) &&
-		IEEE80211_IS_CHAN_ANYG(chan)) {
+	if ((ieee80211_chan2ratemode(chan, -1) != IEEE80211_MODE_11A) &&
+		IEEE80211_IS_CHAN_ANYG(chan) && (vap->iv_flags & IEEE80211_F_PUREG)) {
 		ieee80211_setpuregbasicrates(&ni->ni_rates);
 	}
 
--- a/net80211/ieee80211_scan_sta.c
+++ b/net80211/ieee80211_scan_sta.c
@@ -490,12 +490,7 @@ check_rate(struct ieee80211vap *vap, con
 
 	okrate = badrate = fixedrate = 0;
 
-	if (IEEE80211_IS_CHAN_HALF(se->se_chan))
-		srs = &ic->ic_sup_half_rates;
-	else if (IEEE80211_IS_CHAN_QUARTER(se->se_chan))
-		srs = &ic->ic_sup_quarter_rates;
-	else
-		srs = &ic->ic_sup_rates[ieee80211_chan2mode(se->se_chan)];
+	srs = &ic->ic_sup_rates[ieee80211_chan2ratemode(ic->ic_curchan, -1)];
 	nrs = se->se_rates[1];
 	rs = se->se_rates + 2;
 	fixedrate = IEEE80211_FIXED_RATE_NONE;
--- a/net80211/ieee80211_output.c
+++ b/net80211/ieee80211_output.c
@@ -1676,8 +1676,8 @@ ieee80211_send_probereq(struct ieee80211
 
 	frm = ieee80211_add_ssid(frm, ssid, ssidlen);
 	mode = ieee80211_chan2mode(ic->ic_curchan);
-	frm = ieee80211_add_rates(frm, &ic->ic_sup_rates[mode]);
-	frm = ieee80211_add_xrates(frm, &ic->ic_sup_rates[mode]);
+	frm = ieee80211_add_rates(frm, &ic->ic_sup_rates[ieee80211_chan2ratemode(ic->ic_curchan, mode)]);
+	frm = ieee80211_add_xrates(frm, &ic->ic_sup_rates[ieee80211_chan2ratemode(ic->ic_curchan, mode)]);
 
 	if (optie != NULL) {
 		memcpy(frm, optie, optielen);
--- a/net80211/ieee80211_proto.c
+++ b/net80211/ieee80211_proto.c
@@ -404,7 +404,7 @@ ieee80211_fix_rate(struct ieee80211_node
 
 	error = 0;
 	okrate = badrate = fixedrate = 0;
-	srs = &ic->ic_sup_rates[ieee80211_chan2mode(ni->ni_chan)];
+	srs = &ic->ic_sup_rates[ieee80211_chan2ratemode(ic->ic_curchan, -1)];
 	nrs = &ni->ni_rates;
 	fixedrate = IEEE80211_FIXED_RATE_NONE;
 	for (i = 0; i < nrs->rs_nrates;) {
@@ -1401,6 +1401,7 @@ ieee80211_new_state(struct ieee80211vap 
 	IEEE80211_VAPS_UNLOCK_IRQ(ic);
 	return rc;
 }
+EXPORT_SYMBOL(ieee80211_new_state);
 
 static int
 __ieee80211_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
--- a/ath_rate/minstrel/minstrel.c
+++ b/ath_rate/minstrel/minstrel.c
@@ -195,31 +195,7 @@ calc_usecs_unicast_packet(struct ath_sof
 			return 0;
 		}
 
-		/* XXX: Getting MAC/PHY level timings should be fixed for turbo
-		 * rates, and there is probably a way to get this from the
-		 * HAL... */
-		switch (rt->info[rix].phy) {
-		case IEEE80211_T_OFDM:
-#if 0
-			t_slot = 9;
-			t_sifs = 16;
-			t_difs = 28;
-			/* fall through */
-#endif
-		case IEEE80211_T_TURBO:
-			t_slot = 9;
-			t_sifs = 8;
-			t_difs = 28;
-			break;
-		case IEEE80211_T_DS:
-			/* Fall through to default */
-		default:
-			/* pg. 205 ieee.802.11.pdf */
-			t_slot = 20;
-			t_difs = 50;
-			t_sifs = 10;
-		}
-
+		ath_get_timings(sc, &t_slot, &t_sifs, &t_difs);
 		if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
 		(rt->info[rix].phy == IEEE80211_T_OFDM)) {
 			if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
--- a/ath_rate/sample/sample.c
+++ b/ath_rate/sample/sample.c
@@ -172,26 +172,7 @@ calc_usecs_unicast_packet(struct ath_sof
 	 * rates, and there is probably a way to get this from the
 	 * hal...
 	 */
-	switch (rt->info[rix].phy) {
-	case IEEE80211_T_OFDM:
-		t_slot = 9;
-		t_sifs = 16;
-		t_difs = 28;
-		/* fall through */
-	case IEEE80211_T_TURBO:
-		t_slot = 9;
-		t_sifs = 8;
-		t_difs = 28;
-		break;
-	case IEEE80211_T_DS:
-		/* fall through to default */
-	default:
-		/* pg 205 ieee.802.11.pdf */
-		t_slot = 20;
-		t_difs = 50;
-		t_sifs = 10;
-	}
-
+	ath_get_timings(sc, &t_slot, &t_sifs, &t_difs);
 	rts = cts = 0;
 
 	if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
--- a/net80211/ieee80211_wireless.c
+++ b/net80211/ieee80211_wireless.c
@@ -2133,7 +2133,7 @@ ieee80211_ioctl_setmode(struct net_devic
 
 		vap->iv_des_mode = mode;
 		if (IS_UP_AUTO(vap))
-			ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
+			ieee80211_init(vap->iv_dev, 0);
 
 		retv = 0;
 	}
@@ -4081,46 +4081,60 @@ ieee80211_ioctl_getchanlist(struct net_d
 	return 0;
 }
 
+static int alreadyListed(struct ieee80211req_chaninfo *chans, u_int16_t mhz)
+{
+	int i;
+	for (i = 0; i < chans->ic_nchans; i++) {
+		if (chans->ic_chans[i].ic_freq == mhz)
+			return 1;
+	}
+	return 0;
+}
+
 static int
 ieee80211_ioctl_getchaninfo(struct net_device *dev,
-	struct iw_request_info *info, void *w, char *extra)
+			    struct iw_request_info *info, void *w, char *extra)
 {
 	struct ieee80211vap *vap = dev->priv;
 	struct ieee80211com *ic = vap->iv_ic;
-	struct ieee80211req_chaninfo chans;
+	struct ieee80211req_chaninfo *chans =
+	    (struct ieee80211req_chaninfo *)extra;
+
 	u_int8_t reported[IEEE80211_CHAN_BYTES];	/* XXX stack usage? */
 	int i;
 
-	memset(&chans, 0, sizeof(chans));
-	memset(&reported, 0, sizeof(reported));
+	memset(chans, 0, sizeof(*chans));
+	memset(reported, 0, sizeof(reported));
 	for (i = 0; i < ic->ic_nchans; i++) {
 		const struct ieee80211_channel *c = &ic->ic_channels[i];
 		const struct ieee80211_channel *c1 = c;
 
-		if (isclr(reported, c->ic_ieee)) {
+		if (!alreadyListed(chans, c->ic_freq)) {
 			setbit(reported, c->ic_ieee);
 
-			/* pick turbo channel over non-turbo channel, and
-			 * 11g channel over 11b channel */
 			if (IEEE80211_IS_CHAN_A(c))
-				c1 = findchannel(ic, c->ic_ieee, IEEE80211_MODE_TURBO_A);
+				c1 = findchannel(ic, c->ic_freq,
+						 IEEE80211_MODE_TURBO_A);
 			if (IEEE80211_IS_CHAN_ANYG(c))
-				c1 = findchannel(ic, c->ic_ieee, IEEE80211_MODE_TURBO_G);
+				c1 = findchannel(ic, c->ic_freq,
+						 IEEE80211_MODE_TURBO_G);
 			else if (IEEE80211_IS_CHAN_B(c)) {
-				c1 = findchannel(ic, c->ic_ieee, IEEE80211_MODE_TURBO_G);
+				c1 = findchannel(ic, c->ic_freq,
+						 IEEE80211_MODE_TURBO_G);
 				if (!c1)
-					c1 = findchannel(ic, c->ic_ieee, IEEE80211_MODE_11G);
+					c1 = findchannel(ic, c->ic_freq,
+							 IEEE80211_MODE_11G);
 			}
 
 			if (c1)
 				c = c1;
-			/* Copy the entire structure, whereas it used to just copy a few fields */
-			memcpy(&chans.ic_chans[chans.ic_nchans], c, sizeof(struct ieee80211_channel));
-			if (++chans.ic_nchans >= IEEE80211_CHAN_MAX)
+			chans->ic_chans[chans->ic_nchans].ic_ieee = c->ic_ieee;
+			chans->ic_chans[chans->ic_nchans].ic_freq = c->ic_freq;
+			chans->ic_chans[chans->ic_nchans].ic_flags = c->ic_flags;
+			if (++chans->ic_nchans >= IEEE80211_CHAN_MAX)
 				break;
 		}
 	}
-	memcpy(extra, &chans, sizeof(struct ieee80211req_chaninfo));
 	return 0;
 }
 
--- a/net80211/ieee80211_scan_ap.c
+++ b/net80211/ieee80211_scan_ap.c
@@ -518,12 +518,13 @@ pick_channel(struct ieee80211_scan_state
 	int ss_last = ss->ss_last;
 	struct ieee80211_channel *best;
 	struct ap_state *as = ss->ss_priv;
-	struct channel chans[ss_last]; /* actually ss_last-1 is required */
+	struct channel *chans; /* actually ss_last-1 is required */
 	struct channel *c = NULL;
 	struct pc_params params = { vap, ss, flags };
 	int benefit = 0;
 	int sta_assoc = 0;
 
+	chans = (struct channel *)kmalloc(ss_last*sizeof(struct channel),GFP_ATOMIC);
 	for (i = 0; i < ss_last; i++) {
 		chans[i].chan = ss->ss_chans[i];
 		chans[i].orig = i;
@@ -612,6 +613,7 @@ pick_channel(struct ieee80211_scan_state
 				"%s: best: channel %u rssi %d\n",
 				__func__, i, as->as_maxrssi[i]);
 	}
+	kfree(chans);
 	return best;
 }
 
@@ -647,6 +649,7 @@ ap_end(struct ieee80211_scan_state *ss, 
 		res = 1; /* Do NOT restart scan */
 	} else {
 		struct ieee80211_scan_entry se;
+		int i;
 		/* XXX: notify all VAPs? */
 		/* if this is a dynamic turbo frequency , start with normal 
 		 * mode first */
@@ -661,6 +664,11 @@ ap_end(struct ieee80211_scan_state *ss, 
 				return 0;
 			}
 		}
+		for (i = (bestchan - &ic->ic_channels[0])/sizeof(*bestchan) + 1; i < ic->ic_nchans; i++) {
+			if ((ic->ic_channels[i].ic_freq == bestchan->ic_freq) &&
+				IEEE80211_IS_CHAN_ANYG(&ic->ic_channels[i]))
+				bestchan = &ic->ic_channels[i];
+		}
 		memset(&se, 0, sizeof(se));
 		se.se_chan = bestchan;
 
--- a/tools/wlanconfig.c
+++ b/tools/wlanconfig.c
@@ -737,7 +737,7 @@ list_channels(const char *ifname, int al
 	if (get80211priv(ifname, IEEE80211_IOCTL_GETCHANINFO, &chans, sizeof(chans)) < 0)
 		errx(1, "unable to get channel information");
 	if (!allchans) {
-		uint8_t active[32];
+		uint8_t active[IEEE80211_CHAN_BYTES];
 
 		if (get80211priv(ifname, IEEE80211_IOCTL_GETCHANLIST, &active, sizeof(active)) < 0)
 			errx(1, "unable to get active channel list");
--- a/net80211/ieee80211_scan.c
+++ b/net80211/ieee80211_scan.c
@@ -1044,6 +1044,7 @@ ieee80211_scan_assoc_fail(struct ieee802
 		ss->ss_ops->scan_assoc_fail(ss, mac, reason);
 	}
 }
+EXPORT_SYMBOL(ieee80211_scan_flush);
 
 /*
  * Iterate over the contents of the scan cache.