summaryrefslogtreecommitdiffstats
path: root/package/madwifi/patches/424-timing.patch
blob: 4dfa3c97a620547040d36992101df884f06bf7c1 (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
--- a/ath/if_ath.c
+++ b/ath/if_ath.c
@@ -382,6 +382,7 @@ static u_int32_t ath_set_clamped_maxtxpo
 static void ath_poll_disable(struct net_device *dev);
 static void ath_poll_enable(struct net_device *dev);
 static void ath_fetch_idle_time(struct ath_softc *sc);
+static void ath_set_timing(struct ath_softc *sc);
 
 /* calibrate every 30 secs in steady state but check every second at first. */
 static int ath_calinterval = ATH_SHORT_CALINTERVAL;
@@ -1185,6 +1186,7 @@ ath_attach(u_int16_t devid, struct net_d
 	sc->sc_intmit = -1;
 	sc->sc_noise_immunity = -1;
 	sc->sc_ofdm_weak_det = -1;
+	sc->sc_coverage = 7; /* 2100 meters */
 
 	return 0;
 bad3:
@@ -2673,6 +2675,7 @@ ath_init(struct net_device *dev)
 	 */
 	ath_chan_change(sc, ic->ic_curchan);
 	ath_set_ack_bitrate(sc, sc->sc_ackrate);
+	ath_set_timing(sc);
 	dev->flags |= IFF_RUNNING;		/* we are ready to go */
 	ieee80211_start_running(ic);		/* start all VAPs */
 #ifdef ATH_TX99_DIAG
@@ -4484,17 +4487,52 @@ ath_mode_init(struct net_device *dev)
  * Set the slot time based on the current setting.
  */
 static void
-ath_settiming(struct ath_softc *sc)
+ath_set_timing(struct ath_softc *sc)
 {
+	struct ieee80211com *ic = &sc->sc_ic;
 	struct ath_hal *ah = sc->sc_ah;
-	u_int offset = getTimingOffset(sc);
+	struct ath_timings *t = &sc->sc_timings;
+	u_int offset = 9;
+
+	t->sifs = 16;
+	if (IEEE80211_IS_CHAN_ANYG(ic->ic_curchan)) {
+		offset = 20;
+		if (ic->ic_flags & IEEE80211_F_SHSLOT)
+			offset = 9;
+	} else if (IEEE80211_IS_CHAN_A(ic->ic_curchan)) {
+		offset = 9;
+	}
+
+	if (IEEE80211_IS_CHAN_TURBO(ic->ic_curchan)) {
+		offset = 6;
+		t->sifs = 8;
+	} else if (IEEE80211_IS_CHAN_HALF(ic->ic_curchan)) {
+		offset = 13;
+		t->sifs = 32;
+	} else if (IEEE80211_IS_CHAN_QUARTER(ic->ic_curchan)) {
+		offset = 21;
+		t->sifs = 64;
+	}
+
+	t->slot = offset + sc->sc_coverage;
+	t->ack = t->slot * 2 + 3;
+	t->cts = t->slot * 2 + 3;
 
 	if (sc->sc_slottimeconf > 0)
-		ath_hal_setslottime(ah, offset + sc->sc_slottimeconf);
+		t->slot = sc->sc_slottimeconf;
 	if (sc->sc_acktimeconf > 0)
-		ath_hal_setacktimeout(ah, 2 * offset + sc->sc_acktimeconf);
+		t->ack = sc->sc_acktimeconf;
 	if (sc->sc_ctstimeconf > 0)
-		ath_hal_setctstimeout(ah, 2 * offset + sc->sc_ctstimeconf);
+		t->cts = sc->sc_ctstimeconf;
+
+	t->difs = 2 * t->sifs + t->slot;
+	t->eifs = t->sifs + t->difs + 3;
+
+	ath_hal_setslottime(ah, t->slot);
+	ath_hal_setacktimeout(ah, t->ack);
+	ath_hal_setctstimeout(ah, t->cts);
+	ath_hal_seteifstime(ah, t->eifs);
+
 	sc->sc_updateslot = OK;
 }
 
@@ -4516,7 +4554,7 @@ ath_updateslot(struct net_device *dev)
 	if (ic->ic_opmode == IEEE80211_M_HOSTAP)
 		sc->sc_updateslot = UPDATE;
 	else if (dev->flags & IFF_RUNNING)
-		ath_settiming(sc);
+		ath_set_timing(sc);
 }
 
 #ifdef ATH_SUPERG_DYNTURBO
@@ -5360,7 +5398,7 @@ 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_settiming(sc);		/* commit change to hardware */
+		ath_set_timing(sc);		/* commit change to hardware */
 
 	if (bfaddr != 0) {
 		/*
@@ -9433,7 +9471,8 @@ ath_set_coverageclass(struct ieee80211co
 {
 	struct ath_softc *sc = ic->ic_dev->priv;
 
-	ath_hal_setcoverageclass(sc->sc_ah, ic->ic_coverageclass, 0);
+	sc->sc_coverage = ic->ic_coverageclass * 3;
+	ath_set_timing(sc);
 
 	return;
 }
@@ -10956,6 +10995,7 @@ enum {
 	ATH_OFDM_WEAK_DET	= 29,
 	ATH_CHANBW		= 30,
 	ATH_OUTDOOR		= 31,
+	ATH_DISTANCE	= 32,
 };
 
 /*
@@ -11168,21 +11208,31 @@ ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl
 					sc->sc_slottimeconf = val;
 				else
 					sc->sc_slottimeconf = 0;
-				ath_settiming(sc);
+				ath_set_timing(sc);
 				break;
 			case ATH_ACKTIMEOUT:
 				if (val > 0)
 					sc->sc_acktimeconf = val;
 				else
 					sc->sc_acktimeconf = 0;
-				ath_settiming(sc);
+				ath_set_timing(sc);
 				break;
 			case ATH_CTSTIMEOUT:
 				if (val > 0)
 					sc->sc_ctstimeconf = val;
 				else
 					sc->sc_ctstimeconf = 0;
-				ath_settiming(sc);
+				ath_set_timing(sc);
+				break;
+			case ATH_DISTANCE:
+				if (val > 0) {
+					sc->sc_coverage = ((val - 1) / 300) + 1;
+					ic->ic_coverageclass = ((sc->sc_coverage - 1) / 3) + 1;
+				} else {
+					sc->sc_coverage = 0;
+					ic->ic_coverageclass = 0;
+				}
+				ath_set_timing(sc);
 				break;
 			case ATH_SOFTLED:
 				if (val != sc->sc_softled) {
@@ -11338,6 +11388,9 @@ ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl
 		case ATH_CHANBW:
 			val = sc->sc_chanbw ?: 20;
 			break;
+		case ATH_DISTANCE:
+			val = sc->sc_coverage * 300;
+			break;
 		case ATH_SLOTTIME:
 			val = ath_hal_getslottime(ah);
 			break;
@@ -11459,6 +11512,12 @@ static const ctl_table ath_sysctl_templa
 	  .extra2	= (void *)ATH_CTSTIMEOUT,
 	},
 	{ .ctl_name	= CTL_AUTO,
+	  .procname	= "distance",
+	  .mode		= 0644,
+	  .proc_handler	= ath_sysctl_halparam,
+	  .extra2	= (void *)ATH_DISTANCE,
+	},
+	{ .ctl_name	= CTL_AUTO,
 	  .procname	= "softled",
 	  .mode		= 0644,
 	  .proc_handler	= ath_sysctl_halparam,
--- a/ath/if_ath_hal.h
+++ b/ath/if_ath_hal.h
@@ -284,6 +284,17 @@ static inline u_int ath_hal_getslottime(
 	return ret;
 }
 
+static inline u_int ath_hal_geteifstime(struct ath_hal *ah)
+{
+	u_int ret;
+	ATH_HAL_LOCK_IRQ(ah->ah_sc);
+	ath_hal_set_function(__func__);
+	ret = ah->ah_getEifsTime(ah);
+	ath_hal_set_function(NULL);
+	ATH_HAL_UNLOCK_IRQ(ah->ah_sc);
+	return ret;
+}
+
 static inline void ath_hal_beaconinit(struct ath_hal *ah, u_int32_t nexttbtt,
 				      u_int32_t intval)
 {
@@ -841,6 +852,17 @@ static inline HAL_BOOL ath_hal_setslotti
 	return ret;
 }
 
+static inline HAL_BOOL ath_hal_seteifstime(struct ath_hal *ah, u_int a1)
+{
+	HAL_BOOL ret;
+	ATH_HAL_LOCK_IRQ(ah->ah_sc);
+	ath_hal_set_function(__func__);
+	ret = ah->ah_setEifsTime(ah, a1);
+	ath_hal_set_function(NULL);
+	ATH_HAL_UNLOCK_IRQ(ah->ah_sc);
+	return ret;
+}
+
 static inline void ath_hal_setledstate(struct ath_hal *ah, HAL_LED_STATE a1)
 {
 	ATH_HAL_LOCK_IRQ(ah->ah_sc);
--- a/ath/if_athvar.h
+++ b/ath/if_athvar.h
@@ -613,6 +613,15 @@ struct ath_rp {
 	int       rp_analyzed;
 };
 
+struct ath_timings {
+	u_int	slot;
+	u_int	ack;
+	u_int	cts;
+	u_int	sifs;
+	u_int	difs;
+	u_int	eifs;
+};
+
 struct ath_softc {
 	struct ieee80211com sc_ic;		/* NB: must be first */
 	struct net_device *sc_dev;
@@ -839,6 +848,8 @@ struct ath_softc {
 						 * detected radars */
 	u_int32_t sc_nexttbtt;
 	u_int64_t sc_last_tsf;
+	u_int sc_coverage;
+	struct ath_timings sc_timings;
 };
 
 typedef void (*ath_callback) (struct ath_softc *);
@@ -946,49 +957,76 @@ 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;
+#ifndef MIN
+#define MIN(a,b)        ((a) < (b) ? (a) : (b))
+#endif
+#ifndef MAX
+#define MAX(a,b)        ((a) > (b) ? (a) : (b))
+#endif
 
-	*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;
-	}
+/* Calculate the transmit duration of a frame. */
+static inline unsigned
+calc_usecs_unicast_packet(struct ath_softc *sc, int length,
+		int rix, int short_retries, int long_retries)
+{
+		const HAL_RATE_TABLE *rt = sc->sc_currates;
+		struct ieee80211com *ic = &sc->sc_ic;
+		struct ath_timings *t = &sc->sc_timings;
+		unsigned int x = 0, tt = 0;
+		unsigned int cix = rt->info[rix].controlRate;
+		int rts = 0, cts = 0;
+		int cw = ATH_DEFAULT_CWMIN;
+
+		KASSERT(rt != NULL, ("no rate table, mode %u", sc->sc_curmode));
+
+		if (!rt->info[rix].rateKbps) {
+			printk(KERN_WARNING "rix %d (%d) bad ratekbps %d mode %u\n",
+			       rix, rt->info[rix].dot11Rate,
+			       rt->info[rix].rateKbps,
+			       sc->sc_curmode);
+			return 0;
+		}
+
+		if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
+			(rt->info[rix].phy == IEEE80211_T_OFDM)) {
+
+			if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
+				rts = 1;
+			else if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
+				cts = 1;
+
+			cix = rt->info[sc->sc_protrix].controlRate;
+		}
+
+		if ((rts || cts) && rt->info[cix].rateKbps) {
+			int ctsrate = rt->info[cix].rateCode;
+			int ctsduration = 0;
+
+			ctsrate |= rt->info[cix].shortPreamble;
+			if (rts)	/* SIFS + CTS */
+				ctsduration += rt->info[cix].spAckDuration;
+
+			ctsduration += ath_hal_computetxtime(sc->sc_ah,
+							     rt, length, rix, AH_TRUE);
+
+			if (cts)	/* SIFS + ACK */
+				ctsduration += rt->info[cix].spAckDuration;
+
+			tt += (short_retries + 1) * ctsduration;
+		}
+		tt += t->difs;
+		tt += (long_retries + 1) * (t->sifs + rt->info[rix].spAckDuration);
+		tt += (long_retries + 1) * ath_hal_computetxtime(sc->sc_ah, rt, length,
+							rix, AH_TRUE);
+		for (x = 0; x <= short_retries + long_retries; x++) {
+			cw = MIN(ATH_DEFAULT_CWMAX, (cw + 1) * 2);
+			tt += (t->slot * cw / 2);
+		}
+		return tt;
 }
 
-
 struct ath_hw_detect {
 	const char *vendor_name;
 	const char *card_name;
--- a/ath_rate/minstrel/minstrel.c
+++ b/ath_rate/minstrel/minstrel.c
@@ -170,85 +170,6 @@ rate_to_ndx(struct minstrel_node *sn, in
 		return -1;
 }
 
-/* Calculate the transmit duration of a frame. */
-static unsigned
-calc_usecs_unicast_packet(struct ath_softc *sc, int length,
-		int rix, int short_retries, int long_retries)
-{
-		const HAL_RATE_TABLE *rt = sc->sc_currates;
-		struct ieee80211com *ic = &sc->sc_ic;
-		unsigned t_slot = 20;
-		unsigned t_difs = 50;
-		unsigned t_sifs = 10;
-		unsigned int x = 0, tt = 0;
-		unsigned int cix = rt->info[rix].controlRate;
-		int rts = 0, cts = 0;
-		int cw = ATH_DEFAULT_CWMIN;
-
-		KASSERT(rt != NULL, ("no rate table, mode %u", sc->sc_curmode));
-
-		if (!rt->info[rix].rateKbps) {
-			printk(KERN_WARNING "rix %d (%d) bad ratekbps %d mode %u\n",
-			       rix, rt->info[rix].dot11Rate,
-			       rt->info[rix].rateKbps,
-			       sc->sc_curmode);
-			return 0;
-		}
-
-		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)
-				rts = 1;
-			else if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
-				cts = 1;
-
-			cix = rt->info[sc->sc_protrix].controlRate;
-		}
-
-#if 0
-		if (length > ic->ic_rtsthreshold)
-			rts = 1;
-#endif
-
-		if (rts || cts) {
-			int ctsrate = rt->info[cix].rateCode;
-			int ctsduration = 0;
-
-			if (!rt->info[cix].rateKbps) {
-#if 0
-				printk(KERN_WARNING "cix %d (%d) bad ratekbps %d mode %u\n",
-				       cix, rt->info[cix].dot11Rate,
-				       rt->info[cix].rateKbps,
-				       sc->sc_curmode);
-#endif
-				return 0;
-			}
-
-
-			ctsrate |= rt->info[cix].shortPreamble;
-			if (rts)	/* SIFS + CTS */
-				ctsduration += rt->info[cix].spAckDuration;
-
-			ctsduration += ath_hal_computetxtime(sc->sc_ah,
-							     rt, length, rix, AH_TRUE);
-
-			if (cts)	/* SIFS + ACK */
-				ctsduration += rt->info[cix].spAckDuration;
-
-			tt += (short_retries + 1) * ctsduration;
-		}
-		tt += t_difs;
-		tt += (long_retries + 1) * (t_sifs + rt->info[rix].spAckDuration);
-		tt += (long_retries + 1) * ath_hal_computetxtime(sc->sc_ah, rt, length,
-							rix, AH_TRUE);
-		for (x = 0; x <= short_retries + long_retries; x++) {
-			cw = MIN(ATH_DEFAULT_CWMAX, (cw + 1) * 2);
-			tt += (t_slot * cw / 2);
-		}
-		return tt;
-}
-
 static void
 ath_rate_node_init(struct ath_softc *sc, struct ath_node *an)
 {
--- a/ath_rate/sample/sample.c
+++ b/ath_rate/sample/sample.c
@@ -137,92 +137,6 @@ rate_to_ndx(struct sample_node *sn, int 
 	return -1;
 }
 
-/*
- * Calculate the transmit duration of a frame.
- */
-static unsigned
-calc_usecs_unicast_packet(struct ath_softc *sc, int length,
-	int rix, int short_retries, int long_retries)
-{
-	const HAL_RATE_TABLE *rt = sc->sc_currates;
-	int rts, cts;
-
-	unsigned t_slot;
-	unsigned t_difs;
-	unsigned t_sifs;
-	struct ieee80211com *ic = &sc->sc_ic;
-	unsigned int tt = 0;
-	unsigned int x;
-	unsigned int cw = ATH_DEFAULT_CWMIN;
-	unsigned int cix = rt->info[rix].controlRate;
-	KASSERT(rt != NULL, ("no rate table, mode %u", sc->sc_curmode));
-
-	if (!rt->info[rix].rateKbps) {
-		printk(KERN_WARNING "rix %u (%u) bad ratekbps %u mode %u\n",
-		       rix, rt->info[rix].dot11Rate,
-		       rt->info[rix].rateKbps,
-		       sc->sc_curmode);
-
-		return 0;
-	}
-
-	cix = rt->info[rix].controlRate;
-	/* 
-	 * XXX getting mac/phy level timings should be fixed for turbo
-	 * rates, and there is probably a way to get this from the
-	 * hal...
-	 */
-	ath_get_timings(sc, &t_slot, &t_sifs, &t_difs);
-	rts = cts = 0;
-
-	if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
-	    rt->info[rix].phy == IEEE80211_T_OFDM) {
-		if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
-			rts = 1;
-		else if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
-			cts = 1;
-
-		cix = rt->info[sc->sc_protrix].controlRate;
-	}
-
-	if (0 /*length > ic->ic_rtsthreshold */)
-		rts = 1;
-
-	if (rts || cts) {
-		int ctsrate;
-		int ctsduration = 0;
-
-		if (!rt->info[cix].rateKbps) {
-			printk(KERN_WARNING "cix %u (%u) bad ratekbps %u mode %u\n",
-			       cix, rt->info[cix].dot11Rate,
-			       rt->info[cix].rateKbps,
-			       sc->sc_curmode);
-			return 0;
-		}
-
-
-		ctsrate = rt->info[cix].rateCode | rt->info[cix].shortPreamble;
-		if (rts)		/* SIFS + CTS */
-			ctsduration += rt->info[cix].spAckDuration;
-
-		ctsduration += ath_hal_computetxtime(sc->sc_ah,
-						     rt, length, rix, AH_TRUE);
-
-		if (cts)	/* SIFS + ACK */
-			ctsduration += rt->info[cix].spAckDuration;
-
-		tt += (short_retries + 1) * ctsduration;
-	}
-	tt += t_difs;
-	tt += (long_retries+1)*(t_sifs + rt->info[rix].spAckDuration);
-	tt += (long_retries+1)*ath_hal_computetxtime(sc->sc_ah, rt, length,
-						rix, AH_TRUE);
-	for (x = 0; x <= short_retries + long_retries; x++) {
-		cw = MIN(ATH_DEFAULT_CWMAX, (cw + 1) * 2);
-		tt += (t_slot * cw / 2);
-	}
-	return tt;
-}
 
 static void
 ath_rate_node_init(struct ath_softc *sc, struct ath_node *an)
--- a/net80211/ieee80211_wireless.c
+++ b/net80211/ieee80211_wireless.c
@@ -2745,6 +2745,7 @@ ieee80211_ioctl_setparam(struct net_devi
 	case IEEE80211_PARAM_COVERAGE_CLASS:
 		if (value <= IEEE80211_COVERAGE_CLASS_MAX) {
 			ic->ic_coverageclass = value;
+			ic->ic_set_coverageclass(ic);
 			if (IS_UP_AUTO(vap))
 				ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
 			retv = 0;
--- a/net80211/ieee80211_var.h
+++ b/net80211/ieee80211_var.h
@@ -94,7 +94,7 @@
 
 #define IEEE80211_BGSCAN_TRIGGER_INTVL 20 /* min trigger interval for thresh based bgscan (secs) */
 
-#define IEEE80211_COVERAGE_CLASS_MAX	31	/* max coverage class */
+#define IEEE80211_COVERAGE_CLASS_MAX	255	/* max coverage class */
 #define IEEE80211_REGCLASSIDS_MAX	10	/* max regclass id list */
 
 #define	IEEE80211_PS_SLEEP	0x1		/* STA is in power saving mode */
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -50,7 +50,7 @@ all: compile
 
 DEBUG = -DAR_DEBUG
 
-ALLPROGS=	athstats 80211stats athkey athchans athctrl \
+ALLPROGS=	athstats 80211stats athkey athchans \
 	athdebug 80211debug wlanconfig ath_info
 
 OBJS=	$(patsubst %,%.o,$(ALLPROGS))
--- a/tools/athctrl.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/*-
- * Copyright (c) 2002-2004 Gunter Burchardt, Local-Web AG
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer,
- *    without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
- *    redistribution must be conditioned upon including a substantially
- *    similar Disclaimer requirement for further binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- *    of any contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
- * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
- * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGES.
- *
- * $Id: athctrl.c 2394 2007-05-30 01:41:18Z mtaylor $
- */
-
-/*
- * Simple Atheros-specific tool to inspect and set atheros specific values
- * athctrl [-i interface] [-d distance]
- * (default interface is wifi0).  
- */
-#include <sys/types.h>
-#include <sys/file.h>
-
-#include <getopt.h>
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <err.h>
-
-#include <net/if.h>
-#include "do_multi.h"
-
-static int
-setsysctrl(const char *dev, const char *control , u_long value)
-{
-	char buffer[256];
-	FILE * fd;
-
-	snprintf(buffer, sizeof(buffer), "/proc/sys/dev/%s/%s", dev, control);
-	fd = fopen(buffer, "w");
-	if (fd != NULL) {
-		fprintf(fd, "%li", value);
-		fclose(fd);
-	} else
-		fprintf(stderr, "Could not open %s for writing!\n", buffer);
-
-	return 0;
-}
-
-static void usage(void)
-{
-	fprintf(stderr,
-	    "Atheros driver control\n"
-	    "Copyright (c) 2002-2004 Gunter Burchardt, Local-Web AG\n"
-	    "\n"
-	    "usage: athctrl [-i interface] [-d distance]\n"
-	    "\n"
-	    "options:\n"
-	    "   -h   show this usage\n"
-	"   -i   interface (default interface is wifi0)\n"
-	    "   -d   specify the maximum distance of a sta or the distance\n"
-	"        of the master\n");
-
-	exit(1);
-}
-
-int
-CMD(athctrl)(int argc, char *argv[])
-{
-	char device[IFNAMSIZ + 1];
-	int distance = -1;
-	int c;
-
-	strncpy(device, "wifi0", sizeof (device));
-
-	for (;;) {
-	    	c = getopt(argc, argv, "d:i:h");
-	    	if (c < 0)
-			break;
-	    	switch (c) {
-	    	case 'h':
-			usage();
-			break;
-	    	case 'd':
-			distance = atoi(optarg);
-			break;
-	    	case 'i':
-			strncpy(device, optarg, sizeof (device));
-			break;
-	    	default:
-			usage();
-			break;
-	    	}
-	}
-
-	if (distance >= 0) {
-		int slottime = (distance / 300) + ((distance % 300) ? 1 : 0);
-		int acktimeout = slottime * 2 + 3;
-		int ctstimeout = slottime * 2 + 3;
-
-		printf("Setting distance on interface %s to %i meters\n",
-			device, distance);
-		setsysctrl(device, "slottime", slottime);
-		setsysctrl(device, "acktimeout", acktimeout);
-		setsysctrl(device, "ctstimeout", ctstimeout);
-	} else
-		usage();
-	return 0;
-}
--- a/tools/do_multi.c
+++ b/tools/do_multi.c
@@ -18,8 +18,6 @@ main(int argc, char *argv[])
 	ret = a80211stats_init(argc, argv);
     if(strcmp(progname, "athchans") == 0)
 	ret = athchans_init(argc, argv);
-    if(strcmp(progname, "athctrl") == 0)
-	ret =  athctrl_init(argc, argv);
 #ifdef AR_DEBUG
     if(strcmp(progname, "athdebug") == 0)
 	ret =  athdebug_init(argc, argv);
--- a/tools/do_multi.h
+++ b/tools/do_multi.h
@@ -2,7 +2,6 @@
 int a80211debug_init(int argc, char *argv[]);
 int a80211stats_init(int argc, char *argv[]);
 int athchans_init(int argc, char *argv[]);
-int athctrl_init(int argc, char *argv[]);
 int athdebug_init(int argc, char *argv[]);
 int athkey_init(int argc, char *argv[]);
 int athstats_init(int argc, char *argv[]);
--- a/ath_rate/minstrel/minstrel.h
+++ b/ath_rate/minstrel/minstrel.h
@@ -172,14 +172,6 @@ struct minstrel_node {
 
 #define	ATH_NODE_MINSTREL(an)	((struct minstrel_node *)&an[1])
 
-
-#ifndef MIN
-#define MIN(a,b)        ((a) < (b) ? (a) : (b))
-#endif
-#ifndef MAX
-#define MAX(a,b)        ((a) > (b) ? (a) : (b))
-#endif
-
 /*
  * Definitions for pulling the rate and trie counts from
  * a 5212 h/w descriptor. These Don't belong here; the
--- a/ath_rate/sample/sample.h
+++ b/ath_rate/sample/sample.h
@@ -98,14 +98,6 @@ struct sample_node {
 };
 #define	ATH_NODE_SAMPLE(an)	((struct sample_node *)&an[1])
 
-
-#ifndef MIN
-#define MIN(a,b)        ((a) < (b) ? (a) : (b))
-#endif
-#ifndef MAX
-#define MAX(a,b)        ((a) > (b) ? (a) : (b))
-#endif
-
 /*
  * Definitions for pulling the rate and trie counts from
  * a 5212 h/w descriptor. These Don't belong here; the