path: root/package/madwifi/patches/421-channel_handling.patch

--- 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.