Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6

drivers/net/wireless/Kconfig

@@ -500,5 +500,6 @@ source "drivers/net/wireless/b43legacy/Kconfig"
 source "drivers/net/wireless/zd1211rw/Kconfig"
 source "drivers/net/wireless/rt2x00/Kconfig"
 source "drivers/net/wireless/orinoco/Kconfig"
+source "drivers/net/wireless/wl12xx/Kconfig"
 
 endmenu

drivers/net/wireless/Makefile

@@ -58,3 +58,5 @@ obj-$(CONFIG_P54_COMMON)	+= p54/
 obj-$(CONFIG_ATH_COMMON)	+= ath/
 
 obj-$(CONFIG_MAC80211_HWSIM)	+= mac80211_hwsim.o
+
+obj-$(CONFIG_WL12XX)	+= wl12xx/

drivers/net/wireless/adm8211.c

@@ -1311,18 +1311,20 @@ static int adm8211_config(struct ieee80211_hw *dev, u32 changed)
 	return 0;
 }
 
-static int adm8211_config_interface(struct ieee80211_hw *dev,
-				    struct ieee80211_vif *vif,
-				    struct ieee80211_if_conf *conf)
+static void adm8211_bss_info_changed(struct ieee80211_hw *dev,
+				     struct ieee80211_vif *vif,
+				     struct ieee80211_bss_conf *conf,
+				     u32 changes)
 {
 	struct adm8211_priv *priv = dev->priv;
 
+	if (!(changes & BSS_CHANGED_BSSID))
+		return;
+
 	if (memcmp(conf->bssid, priv->bssid, ETH_ALEN)) {
 		adm8211_set_bssid(dev, conf->bssid);
 		memcpy(priv->bssid, conf->bssid, ETH_ALEN);
 	}
-
-	return 0;
 }
 
 static void adm8211_configure_filter(struct ieee80211_hw *dev,
@@ -1753,7 +1755,7 @@ static const struct ieee80211_ops adm8211_ops = {
 	.add_interface		= adm8211_add_interface,
 	.remove_interface	= adm8211_remove_interface,
 	.config			= adm8211_config,
-	.config_interface	= adm8211_config_interface,
+	.bss_info_changed	= adm8211_bss_info_changed,
 	.configure_filter	= adm8211_configure_filter,
 	.get_stats		= adm8211_get_stats,
 	.get_tx_stats		= adm8211_get_tx_stats,

drivers/net/wireless/at76c50x-usb.c

@@ -1965,13 +1965,18 @@ static int at76_config(struct ieee80211_hw *hw, u32 changed)
 	return 0;
 }
 
-static int at76_config_interface(struct ieee80211_hw *hw,
-				 struct ieee80211_vif *vif,
-				 struct ieee80211_if_conf *conf)
+static void at76_bss_info_changed(struct ieee80211_hw *hw,
+				  struct ieee80211_vif *vif,
+				  struct ieee80211_bss_conf *conf,
+				  u32 changed)
 {
 	struct at76_priv *priv = hw->priv;
 
 	at76_dbg(DBG_MAC80211, "%s():", __func__);
+
+	if (!(changed & BSS_CHANGED_BSSID))
+		return;
+
 	at76_dbg_dump(DBG_MAC80211, conf->bssid, ETH_ALEN, "bssid:");
 
 	mutex_lock(&priv->mtx);
@@ -1983,8 +1988,6 @@ static int at76_config_interface(struct ieee80211_hw *hw,
 		at76_join(priv);
 
 	mutex_unlock(&priv->mtx);
-
-	return 0;
 }
 
 /* must be atomic */
@@ -2076,7 +2079,7 @@ static const struct ieee80211_ops at76_ops = {
 	.add_interface = at76_add_interface,
 	.remove_interface = at76_remove_interface,
 	.config = at76_config,
-	.config_interface = at76_config_interface,
+	.bss_info_changed = at76_bss_info_changed,
 	.configure_filter = at76_configure_filter,
 	.start = at76_mac80211_start,
 	.stop = at76_mac80211_stop,

drivers/net/wireless/ath/ar9170/hw.h

@@ -207,6 +207,8 @@ enum ar9170_cmd {
 #define AR9170_MAC_REG_AC1_AC0_TXOP		(AR9170_MAC_REG_BASE + 0xB44)
 #define AR9170_MAC_REG_AC3_AC2_TXOP		(AR9170_MAC_REG_BASE + 0xB48)
 
+#define AR9170_MAC_REG_AMPDU_SET		(AR9170_MAC_REG_BASE + 0xba0)
+
 #define AR9170_MAC_REG_ACK_TABLE		(AR9170_MAC_REG_BASE + 0xC00)
 #define AR9170_MAC_REG_AMPDU_RX_THRESH		(AR9170_MAC_REG_BASE + 0xC50)
 

drivers/net/wireless/ath/ar9170/mac.c

@@ -72,6 +72,24 @@ int ar9170_set_qos(struct ar9170 *ar)
 	return ar9170_regwrite_result();
 }
 
+static int ar9170_set_ampdu_density(struct ar9170 *ar, u8 mpdudensity)
+{
+	u32 val;
+
+	/* don't allow AMPDU density > 8us */
+	if (mpdudensity > 6)
+		return -EINVAL;
+
+	/* Watch out! Otus uses slightly different density values. */
+	val = 0x140a00 | (mpdudensity ? (mpdudensity + 1) : 0);
+
+	ar9170_regwrite_begin(ar);
+	ar9170_regwrite(AR9170_MAC_REG_AMPDU_SET, val);
+	ar9170_regwrite_finish();
+
+	return ar9170_regwrite_result();
+}
+
 int ar9170_init_mac(struct ar9170 *ar)
 {
 	ar9170_regwrite_begin(ar);
@@ -265,9 +283,9 @@ int ar9170_set_operating_mode(struct ar9170 *ar)
 		case NL80211_IFTYPE_ADHOC:
 			pm_mode |= AR9170_MAC_REG_POWERMGT_IBSS;
 			break;
-/*		case NL80211_IFTYPE_AP:
+		case NL80211_IFTYPE_AP:
 			pm_mode |= AR9170_MAC_REG_POWERMGT_AP;
-			break;*/
+			break;
 		case NL80211_IFTYPE_WDS:
 			pm_mode |= AR9170_MAC_REG_POWERMGT_AP_WDS;
 			break;
@@ -296,6 +314,11 @@ int ar9170_set_operating_mode(struct ar9170 *ar)
 	if (err)
 		return err;
 
+	/* set AMPDU density to 8us. */
+	err = ar9170_set_ampdu_density(ar, 6);
+	if (err)
+		return err;
+
 	ar9170_regwrite_begin(ar);
 
 	ar9170_regwrite(AR9170_MAC_REG_POWERMANAGEMENT, pm_mode);
@@ -316,9 +339,9 @@ int ar9170_set_beacon_timers(struct ar9170 *ar)
 	u32 v = 0;
 	u32 pretbtt = 0;
 
-	v |= ar->hw->conf.beacon_int;
-
 	if (ar->vif) {
+		v |= ar->vif->bss_conf.beacon_int;
+
 		switch (ar->vif->type) {
 		case NL80211_IFTYPE_MESH_POINT:
 		case NL80211_IFTYPE_ADHOC:
@@ -326,7 +349,7 @@ int ar9170_set_beacon_timers(struct ar9170 *ar)
 			break;
 		case NL80211_IFTYPE_AP:
 			v |= BIT(24);
-			pretbtt = (ar->hw->conf.beacon_int - 6) << 16;
+			pretbtt = (ar->vif->bss_conf.beacon_int - 6) << 16;
 			break;
 		default:
 			break;

drivers/net/wireless/ath/ar9170/main.c

@@ -151,8 +151,8 @@ static struct ieee80211_channel ar9170_5ghz_chantable[] = {
 			  IEEE80211_HT_CAP_SGI_40 |			\
 			  IEEE80211_HT_CAP_DSSSCCK40 |			\
 			  IEEE80211_HT_CAP_SM_PS,			\
-	.ampdu_factor	= 3, /* ?? */					\
-	.ampdu_density	= 7, /* ?? */					\
+	.ampdu_factor	= 3,						\
+	.ampdu_density	= 6,						\
 	.mcs		= {						\
 		.rx_mask = { 0xFF, 0xFF, 0, 0, 0, 0, 0, 0, 0, 0, },	\
 	},								\
@@ -1337,7 +1337,7 @@ static int ar9170_op_config(struct ieee80211_hw *hw, u32 changed)
 			goto out;
 	}
 
-	if (changed & IEEE80211_CONF_CHANGE_BEACON_INTERVAL) {
+	if (changed & BSS_CHANGED_BEACON_INT) {
 		err = ar9170_set_beacon_timers(ar);
 		if (err)
 			goto out;
@@ -1360,33 +1360,6 @@ out:
 	return err;
 }
 
-static int ar9170_op_config_interface(struct ieee80211_hw *hw,
-				      struct ieee80211_vif *vif,
-				      struct ieee80211_if_conf *conf)
-{
-	struct ar9170 *ar = hw->priv;
-	int err = 0;
-
-	mutex_lock(&ar->mutex);
-
-	if (conf->changed & IEEE80211_IFCC_BSSID) {
-		memcpy(ar->bssid, conf->bssid, ETH_ALEN);
-		err = ar9170_set_operating_mode(ar);
-	}
-
-	if (conf->changed & IEEE80211_IFCC_BEACON) {
-		err = ar9170_update_beacon(ar);
-
-		if (err)
-			goto out;
-		err = ar9170_set_beacon_timers(ar);
-	}
-
-out:
-	mutex_unlock(&ar->mutex);
-	return err;
-}
-
 static void ar9170_set_filters(struct work_struct *work)
 {
 	struct ar9170 *ar = container_of(work, struct ar9170,
@@ -1488,6 +1461,17 @@ static void ar9170_op_bss_info_changed(struct ieee80211_hw *hw,
 
 	mutex_lock(&ar->mutex);
 
+	if (changed & BSS_CHANGED_BSSID) {
+		memcpy(ar->bssid, bss_conf->bssid, ETH_ALEN);
+		err = ar9170_set_operating_mode(ar);
+	}
+
+	if (changed & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_ENABLED)) {
+		err = ar9170_update_beacon(ar);
+		if (!err)
+			ar9170_set_beacon_timers(ar);
+	}
+
 	ar9170_regwrite_begin(ar);
 
 	if (changed & BSS_CHANGED_ASSOC) {
@@ -1499,6 +1483,9 @@ static void ar9170_op_bss_info_changed(struct ieee80211_hw *hw,
 #endif /* CONFIG_AR9170_LEDS */
 	}
 
+	if (changed & BSS_CHANGED_BEACON_INT)
+		err = ar9170_set_beacon_timers(ar);
+
 	if (changed & BSS_CHANGED_HT) {
 		/* TODO */
 		err = 0;
@@ -1793,7 +1780,6 @@ static const struct ieee80211_ops ar9170_ops = {
 	.add_interface		= ar9170_op_add_interface,
 	.remove_interface	= ar9170_op_remove_interface,
 	.config			= ar9170_op_config,
-	.config_interface	= ar9170_op_config_interface,
 	.configure_filter	= ar9170_op_configure_filter,
 	.conf_tx		= ar9170_conf_tx,
 	.bss_info_changed	= ar9170_op_bss_info_changed,

drivers/net/wireless/ath/ar9170/usb.c

@@ -350,7 +350,7 @@ static int ar9170_usb_exec_cmd(struct ar9170 *ar, enum ar9170_cmd cmd,
 		goto err_unbuf;
 	}
 
-	if (outlen >= 0 && aru->readlen != outlen) {
+	if (aru->readlen != outlen) {
 		err = -EMSGSIZE;
 		goto err_unbuf;
 	}
@@ -689,6 +689,9 @@ static int ar9170_usb_probe(struct usb_interface *intf,
 	aru->common.exec_cmd = ar9170_usb_exec_cmd;
 	aru->common.callback_cmd = ar9170_usb_callback_cmd;
 
+#ifdef CONFIG_PM
+	udev->reset_resume = 1;
+#endif
 	err = ar9170_usb_reset(aru);
 	if (err)
 		goto err_freehw;
@@ -805,6 +808,7 @@ static struct usb_driver ar9170_driver = {
 #ifdef CONFIG_PM
 	.suspend = ar9170_suspend,
 	.resume = ar9170_resume,
+	.reset_resume = ar9170_resume,
 #endif /* CONFIG_PM */
 };
 

drivers/net/wireless/ath/ath5k/ath5k.h

@@ -209,7 +209,6 @@
 #define AR5K_TUNE_MAX_TXPOWER			63
 #define AR5K_TUNE_DEFAULT_TXPOWER		25
 #define AR5K_TUNE_TPC_TXPOWER			false
-#define AR5K_TUNE_ANT_DIVERSITY			true
 #define AR5K_TUNE_HWTXTRIES			4
 
 #define AR5K_INIT_CARR_SENSE_EN			1
@@ -420,6 +419,17 @@ enum ath5k_driver_mode {
 	AR5K_MODE_MAX		=	5
 };
 
+enum ath5k_ant_mode {
+	AR5K_ANTMODE_DEFAULT	= 0,	/* default antenna setup */
+	AR5K_ANTMODE_FIXED_A	= 1,	/* only antenna A is present */
+	AR5K_ANTMODE_FIXED_B	= 2,	/* only antenna B is present */
+	AR5K_ANTMODE_SINGLE_AP	= 3,	/* sta locked on a single ap */
+	AR5K_ANTMODE_SECTOR_AP	= 4,	/* AP with tx antenna set on tx desc */
+	AR5K_ANTMODE_SECTOR_STA	= 5,	/* STA with tx antenna set on tx desc */
+	AR5K_ANTMODE_DEBUG	= 6,	/* Debug mode -A -> Rx, B-> Tx- */
+	AR5K_ANTMODE_MAX,
+};
+
 
 /****************\
   TX DEFINITIONS
@@ -1051,8 +1061,11 @@ struct ath5k_hw {
 	bool			ah_software_retry;
 	u32			ah_limit_tx_retries;
 
-	u32			ah_antenna[AR5K_EEPROM_N_MODES][AR5K_ANT_MAX];
-	bool			ah_ant_diversity;
+	/* Antenna Control */
+	u32			ah_ant_ctl[AR5K_EEPROM_N_MODES][AR5K_ANT_MAX];
+	u8			ah_ant_mode;
+	u8			ah_tx_ant;
+	u8			ah_def_ant;
 
 	u8			ah_sta_id[ETH_ALEN];
 
@@ -1100,11 +1113,12 @@ struct ath5k_hw {
 		/* Values in 0.25dB units */
 		s16		txp_min_pwr;
 		s16		txp_max_pwr;
+		/* Values in 0.5dB units */
 		s16		txp_offset;
 		s16		txp_ofdm;
-		/* Values in dB units */
-		s16		txp_cck_ofdm_pwr_delta;
 		s16		txp_cck_ofdm_gainf_delta;
+		/* Value in dB units */
+		s16		txp_cck_ofdm_pwr_delta;
 	} ah_txpower;
 
 	struct {
@@ -1264,14 +1278,21 @@ extern int ath5k_hw_channel(struct ath5k_hw *ah, struct ieee80211_channel *chann
 /* PHY calibration */
 extern int ath5k_hw_phy_calibrate(struct ath5k_hw *ah, struct ieee80211_channel *channel);
 extern int ath5k_hw_noise_floor_calibration(struct ath5k_hw *ah, short freq);
+/* Spur mitigation */
+bool ath5k_hw_chan_has_spur_noise(struct ath5k_hw *ah,
+				struct ieee80211_channel *channel);
+void ath5k_hw_set_spur_mitigation_filter(struct ath5k_hw *ah,
+				struct ieee80211_channel *channel);
 /* Misc PHY functions */
 extern u16 ath5k_hw_radio_revision(struct ath5k_hw *ah, unsigned int chan);
-extern void ath5k_hw_set_def_antenna(struct ath5k_hw *ah, unsigned int ant);
-extern unsigned int ath5k_hw_get_def_antenna(struct ath5k_hw *ah);
 extern int ath5k_hw_phy_disable(struct ath5k_hw *ah);
+/* Antenna control */
+extern void ath5k_hw_set_antenna_mode(struct ath5k_hw *ah, u8 ant_mode);
+extern void ath5k_hw_set_def_antenna(struct ath5k_hw *ah, u8 ant);
+extern unsigned int ath5k_hw_get_def_antenna(struct ath5k_hw *ah);
 /* TX power setup */
 extern int ath5k_hw_txpower(struct ath5k_hw *ah, struct ieee80211_channel *channel, u8 ee_mode, u8 txpower);
-extern int ath5k_hw_set_txpower_limit(struct ath5k_hw *ah, u8 ee_mode, u8 txpower);
+extern int ath5k_hw_set_txpower_limit(struct ath5k_hw *ah, u8 txpower);
 
 /*
  * Functions used internaly

drivers/net/wireless/ath/ath5k/attach.c

@@ -133,7 +133,6 @@ struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc, u8 mac_version)
 	ah->ah_cw_min = AR5K_TUNE_CWMIN;
 	ah->ah_limit_tx_retries = AR5K_INIT_TX_RETRY;
 	ah->ah_software_retry = false;
-	ah->ah_ant_diversity = AR5K_TUNE_ANT_DIVERSITY;
 
 	/*
 	 * Set the mac version based on the pci id

drivers/net/wireless/ath/ath5k/base.c

@@ -227,9 +227,6 @@ static int ath5k_add_interface(struct ieee80211_hw *hw,
 static void ath5k_remove_interface(struct ieee80211_hw *hw,
 		struct ieee80211_if_init_conf *conf);
 static int ath5k_config(struct ieee80211_hw *hw, u32 changed);
-static int ath5k_config_interface(struct ieee80211_hw *hw,
-		struct ieee80211_vif *vif,
-		struct ieee80211_if_conf *conf);
 static void ath5k_configure_filter(struct ieee80211_hw *hw,
 		unsigned int changed_flags,
 		unsigned int *new_flags,
@@ -259,7 +256,6 @@ static const struct ieee80211_ops ath5k_hw_ops = {
 	.add_interface 	= ath5k_add_interface,
 	.remove_interface = ath5k_remove_interface,
 	.config 	= ath5k_config,
-	.config_interface = ath5k_config_interface,
 	.configure_filter = ath5k_configure_filter,
 	.set_key 	= ath5k_set_key,
 	.get_stats 	= ath5k_get_stats,
@@ -520,6 +516,7 @@ ath5k_pci_probe(struct pci_dev *pdev,
 		    IEEE80211_HW_NOISE_DBM;
 
 	hw->wiphy->interface_modes =
+		BIT(NL80211_IFTYPE_AP) |
 		BIT(NL80211_IFTYPE_STATION) |
 		BIT(NL80211_IFTYPE_ADHOC) |
 		BIT(NL80211_IFTYPE_MESH_POINT);
@@ -1282,7 +1279,7 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf)
 		ieee80211_get_hdrlen_from_skb(skb), AR5K_PKT_TYPE_NORMAL,
 		(sc->power_level * 2),
 		hw_rate,
-		info->control.rates[0].count, keyidx, 0, flags,
+		info->control.rates[0].count, keyidx, ah->ah_tx_ant, flags,
 		cts_rate, duration);
 	if (ret)
 		goto err_unmap;
@@ -1742,35 +1739,6 @@ ath5k_check_ibss_tsf(struct ath5k_softc *sc, struct sk_buff *skb,
 	}
 }
 
-static void ath5k_tasklet_beacon(unsigned long data)
-{
-	struct ath5k_softc *sc = (struct ath5k_softc *) data;
-
-	/*
-	 * Software beacon alert--time to send a beacon.
-	 *
-	 * In IBSS mode we use this interrupt just to
-	 * keep track of the next TBTT (target beacon
-	 * transmission time) in order to detect wether
-	 * automatic TSF updates happened.
-	 */
-	if (sc->opmode == NL80211_IFTYPE_ADHOC) {
-		/* XXX: only if VEOL suppported */
-		u64 tsf = ath5k_hw_get_tsf64(sc->ah);
-		sc->nexttbtt += sc->bintval;
-		ATH5K_DBG(sc, ATH5K_DEBUG_BEACON,
-				"SWBA nexttbtt: %x hw_tu: %x "
-				"TSF: %llx\n",
-				sc->nexttbtt,
-				TSF_TO_TU(tsf),
-				(unsigned long long) tsf);
-	} else {
-		spin_lock(&sc->block);
-		ath5k_beacon_send(sc);
-		spin_unlock(&sc->block);
-	}
-}
-
 static void
 ath5k_tasklet_rx(unsigned long data)
 {
@@ -2041,7 +2009,8 @@ ath5k_beacon_setup(struct ath5k_softc *sc, struct ath5k_buf *bf)
 	struct	ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct ath5k_hw *ah = sc->ah;
 	struct ath5k_desc *ds;
-	int ret, antenna = 0;
+	int ret = 0;
+	u8 antenna;
 	u32 flags;
 
 	bf->skbaddr = pci_map_single(sc->pdev, skb->data, skb->len,
@@ -2055,23 +2024,35 @@ ath5k_beacon_setup(struct ath5k_softc *sc, struct ath5k_buf *bf)
 	}
 
 	ds = bf->desc;
+	antenna = ah->ah_tx_ant;
 
 	flags = AR5K_TXDESC_NOACK;
 	if (sc->opmode == NL80211_IFTYPE_ADHOC && ath5k_hw_hasveol(ah)) {
 		ds->ds_link = bf->daddr;	/* self-linked */
 		flags |= AR5K_TXDESC_VEOL;
-		/*
-		 * Let hardware handle antenna switching if txantenna is not set
-		 */
-	} else {
+	} else
 		ds->ds_link = 0;
-		/*
-		 * Switch antenna every 4 beacons if txantenna is not set
-		 * XXX assumes two antennas
-		 */
-		if (antenna == 0)
-			antenna = sc->bsent & 4 ? 2 : 1;
-	}
+
+	/*
+	 * If we use multiple antennas on AP and use
+	 * the Sectored AP scenario, switch antenna every
+	 * 4 beacons to make sure everybody hears our AP.
+	 * When a client tries to associate, hw will keep
+	 * track of the tx antenna to be used for this client
+	 * automaticaly, based on ACKed packets.
+	 *
+	 * Note: AP still listens and transmits RTS on the
+	 * default antenna which is supposed to be an omni.
+	 *
+	 * Note2: On sectored scenarios it's possible to have
+	 * multiple antennas (1omni -the default- and 14 sectors)
+	 * so if we choose to actually support this mode we need
+	 * to allow user to set how many antennas we have and tweak
+	 * the code below to send beacons on all of them.
+	 */
+	if (ah->ah_ant_mode == AR5K_ANTMODE_SECTOR_AP)
+		antenna = sc->bsent & 4 ? 2 : 1;
+
 
 	/* FIXME: If we are in g mode and rate is a CCK rate
 	 * subtract ah->ah_txpower.txp_cck_ofdm_pwr_delta
@@ -2124,7 +2105,7 @@ ath5k_beacon_send(struct ath5k_softc *sc)
 		sc->bmisscount++;
 		ATH5K_DBG(sc, ATH5K_DEBUG_BEACON,
 			"missed %u consecutive beacons\n", sc->bmisscount);
-		if (sc->bmisscount > 3) {		/* NB: 3 is a guess */
+		if (sc->bmisscount > 10) {	/* NB: 10 is a guess */
 			ATH5K_DBG(sc, ATH5K_DEBUG_BEACON,
 				"stuck beacon time (%u missed)\n",
 				sc->bmisscount);
@@ -2145,10 +2126,12 @@ ath5k_beacon_send(struct ath5k_softc *sc)
 	 * are still pending on the queue.
 	 */
 	if (unlikely(ath5k_hw_stop_tx_dma(ah, sc->bhalq))) {
-		ATH5K_WARN(sc, "beacon queue %u didn't stop?\n", sc->bhalq);
+		ATH5K_WARN(sc, "beacon queue %u didn't start/stop ?\n", sc->bhalq);
 		/* NB: hw still stops DMA, so proceed */
 	}
 
+	/* Note: Beacon buffer is updated on beacon_update when mac80211
+	 * calls config_interface */
 	ath5k_hw_set_txdp(ah, sc->bhalq, bf->daddr);
 	ath5k_hw_start_tx_dma(ah, sc->bhalq);
 	ATH5K_DBG(sc, ATH5K_DEBUG_BEACON, "TXDP[%u] = %llx (%p)\n",
@@ -2305,6 +2288,35 @@ ath5k_beacon_config(struct ath5k_softc *sc)
 	ath5k_hw_set_imr(ah, sc->imask);
 }
 
+static void ath5k_tasklet_beacon(unsigned long data)
+{
+	struct ath5k_softc *sc = (struct ath5k_softc *) data;
+
+	/*
+	 * Software beacon alert--time to send a beacon.
+	 *
+	 * In IBSS mode we use this interrupt just to
+	 * keep track of the next TBTT (target beacon
+	 * transmission time) in order to detect wether
+	 * automatic TSF updates happened.
+	 */
+	if (sc->opmode == NL80211_IFTYPE_ADHOC) {
+		/* XXX: only if VEOL suppported */
+		u64 tsf = ath5k_hw_get_tsf64(sc->ah);
+		sc->nexttbtt += sc->bintval;
+		ATH5K_DBG(sc, ATH5K_DEBUG_BEACON,
+				"SWBA nexttbtt: %x hw_tu: %x "
+				"TSF: %llx\n",
+				sc->nexttbtt,
+				TSF_TO_TU(tsf),
+				(unsigned long long) tsf);
+	} else {
+		spin_lock(&sc->block);
+		ath5k_beacon_send(sc);
+		spin_unlock(&sc->block);
+	}
+}
+
 
 /********************\
 * Interrupt handling *
@@ -2509,7 +2521,7 @@ ath5k_intr(int irq, void *dev_id)
 				ath5k_hw_update_mib_counters(ah, &sc->ll_stats);
 			}
 		}
-	} while (ath5k_hw_is_intr_pending(ah) && counter-- > 0);
+	} while (ath5k_hw_is_intr_pending(ah) && --counter > 0);
 
 	if (unlikely(!counter))
 		ATH5K_WARN(sc, "too many interrupts, giving up for now\n");
@@ -2751,56 +2763,47 @@ static int
 ath5k_config(struct ieee80211_hw *hw, u32 changed)
 {
 	struct ath5k_softc *sc = hw->priv;
+	struct ath5k_hw *ah = sc->ah;
 	struct ieee80211_conf *conf = &hw->conf;
-	int ret;