atheros: put atheros wireless drivers into ath/

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 0 insertions, 2890 deletions

diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
deleted file mode 100644
index 8b6a7ea4e59b..000000000000
--- a/drivers/net/wireless/ath9k/main.c
+++ /dev/null
@@ -1,2890 +0,0 @@
-/*
- * Copyright (c) 2008-2009 Atheros Communications Inc.
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include <linux/nl80211.h>
-#include "ath9k.h"
-
-#define ATH_PCI_VERSION "0.1"
-
-static char *dev_info = "ath9k";
-
-MODULE_AUTHOR("Atheros Communications");
-MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
-MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
-MODULE_LICENSE("Dual BSD/GPL");
-
-static int modparam_nohwcrypt;
-module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444);
-MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption");
-
-/* We use the hw_value as an index into our private channel structure */
-
-#define CHAN2G(_freq, _idx)  { \
-	.center_freq = (_freq), \
-	.hw_value = (_idx), \
-	.max_power = 30, \
-}
-
-#define CHAN5G(_freq, _idx) { \
-	.band = IEEE80211_BAND_5GHZ, \
-	.center_freq = (_freq), \
-	.hw_value = (_idx), \
-	.max_power = 30, \
-}
-
-/* Some 2 GHz radios are actually tunable on 2312-2732
- * on 5 MHz steps, we support the channels which we know
- * we have calibration data for all cards though to make
- * this static */
-static struct ieee80211_channel ath9k_2ghz_chantable[] = {
-	CHAN2G(2412, 0), /* Channel 1 */
-	CHAN2G(2417, 1), /* Channel 2 */
-	CHAN2G(2422, 2), /* Channel 3 */
-	CHAN2G(2427, 3), /* Channel 4 */
-	CHAN2G(2432, 4), /* Channel 5 */
-	CHAN2G(2437, 5), /* Channel 6 */
-	CHAN2G(2442, 6), /* Channel 7 */
-	CHAN2G(2447, 7), /* Channel 8 */
-	CHAN2G(2452, 8), /* Channel 9 */
-	CHAN2G(2457, 9), /* Channel 10 */
-	CHAN2G(2462, 10), /* Channel 11 */
-	CHAN2G(2467, 11), /* Channel 12 */
-	CHAN2G(2472, 12), /* Channel 13 */
-	CHAN2G(2484, 13), /* Channel 14 */
-};
-
-/* Some 5 GHz radios are actually tunable on XXXX-YYYY
- * on 5 MHz steps, we support the channels which we know
- * we have calibration data for all cards though to make
- * this static */
-static struct ieee80211_channel ath9k_5ghz_chantable[] = {
-	/* _We_ call this UNII 1 */
-	CHAN5G(5180, 14), /* Channel 36 */
-	CHAN5G(5200, 15), /* Channel 40 */
-	CHAN5G(5220, 16), /* Channel 44 */
-	CHAN5G(5240, 17), /* Channel 48 */
-	/* _We_ call this UNII 2 */
-	CHAN5G(5260, 18), /* Channel 52 */
-	CHAN5G(5280, 19), /* Channel 56 */
-	CHAN5G(5300, 20), /* Channel 60 */
-	CHAN5G(5320, 21), /* Channel 64 */
-	/* _We_ call this "Middle band" */
-	CHAN5G(5500, 22), /* Channel 100 */
-	CHAN5G(5520, 23), /* Channel 104 */
-	CHAN5G(5540, 24), /* Channel 108 */
-	CHAN5G(5560, 25), /* Channel 112 */
-	CHAN5G(5580, 26), /* Channel 116 */
-	CHAN5G(5600, 27), /* Channel 120 */
-	CHAN5G(5620, 28), /* Channel 124 */
-	CHAN5G(5640, 29), /* Channel 128 */
-	CHAN5G(5660, 30), /* Channel 132 */
-	CHAN5G(5680, 31), /* Channel 136 */
-	CHAN5G(5700, 32), /* Channel 140 */
-	/* _We_ call this UNII 3 */
-	CHAN5G(5745, 33), /* Channel 149 */
-	CHAN5G(5765, 34), /* Channel 153 */
-	CHAN5G(5785, 35), /* Channel 157 */
-	CHAN5G(5805, 36), /* Channel 161 */
-	CHAN5G(5825, 37), /* Channel 165 */
-};
-
-static void ath_cache_conf_rate(struct ath_softc *sc,
-				struct ieee80211_conf *conf)
-{
-	switch (conf->channel->band) {
-	case IEEE80211_BAND_2GHZ:
-		if (conf_is_ht20(conf))
-			sc->cur_rate_table =
-			  sc->hw_rate_table[ATH9K_MODE_11NG_HT20];
-		else if (conf_is_ht40_minus(conf))
-			sc->cur_rate_table =
-			  sc->hw_rate_table[ATH9K_MODE_11NG_HT40MINUS];
-		else if (conf_is_ht40_plus(conf))
-			sc->cur_rate_table =
-			  sc->hw_rate_table[ATH9K_MODE_11NG_HT40PLUS];
-		else
-			sc->cur_rate_table =
-			  sc->hw_rate_table[ATH9K_MODE_11G];
-		break;
-	case IEEE80211_BAND_5GHZ:
-		if (conf_is_ht20(conf))
-			sc->cur_rate_table =
-			  sc->hw_rate_table[ATH9K_MODE_11NA_HT20];
-		else if (conf_is_ht40_minus(conf))
-			sc->cur_rate_table =
-			  sc->hw_rate_table[ATH9K_MODE_11NA_HT40MINUS];
-		else if (conf_is_ht40_plus(conf))
-			sc->cur_rate_table =
-			  sc->hw_rate_table[ATH9K_MODE_11NA_HT40PLUS];
-		else
-			sc->cur_rate_table =
-			  sc->hw_rate_table[ATH9K_MODE_11A];
-		break;
-	default:
-		BUG_ON(1);
-		break;
-	}
-}
-
-static void ath_update_txpow(struct ath_softc *sc)
-{
-	struct ath_hw *ah = sc->sc_ah;
-	u32 txpow;
-
-	if (sc->curtxpow != sc->config.txpowlimit) {
-		ath9k_hw_set_txpowerlimit(ah, sc->config.txpowlimit);
-		/* read back in case value is clamped */
-		ath9k_hw_getcapability(ah, ATH9K_CAP_TXPOW, 1, &txpow);
-		sc->curtxpow = txpow;
-	}
-}
-
-static u8 parse_mpdudensity(u8 mpdudensity)
-{
-	/*
-	 * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing":
-	 *   0 for no restriction
-	 *   1 for 1/4 us
-	 *   2 for 1/2 us
-	 *   3 for 1 us
-	 *   4 for 2 us
-	 *   5 for 4 us
-	 *   6 for 8 us
-	 *   7 for 16 us
-	 */
-	switch (mpdudensity) {
-	case 0:
-		return 0;
-	case 1:
-	case 2:
-	case 3:
-		/* Our lower layer calculations limit our precision to
-		   1 microsecond */
-		return 1;
-	case 4:
-		return 2;
-	case 5:
-		return 4;
-	case 6:
-		return 8;
-	case 7:
-		return 16;
-	default:
-		return 0;
-	}
-}
-
-static void ath_setup_rates(struct ath_softc *sc, enum ieee80211_band band)
-{
-	struct ath_rate_table *rate_table = NULL;
-	struct ieee80211_supported_band *sband;
-	struct ieee80211_rate *rate;
-	int i, maxrates;
-
-	switch (band) {
-	case IEEE80211_BAND_2GHZ:
-		rate_table = sc->hw_rate_table[ATH9K_MODE_11G];
-		break;
-	case IEEE80211_BAND_5GHZ:
-		rate_table = sc->hw_rate_table[ATH9K_MODE_11A];
-		break;
-	default:
-		break;
-	}
-
-	if (rate_table == NULL)
-		return;
-
-	sband = &sc->sbands[band];
-	rate = sc->rates[band];
-
-	if (rate_table->rate_cnt > ATH_RATE_MAX)
-		maxrates = ATH_RATE_MAX;
-	else
-		maxrates = rate_table->rate_cnt;
-
-	for (i = 0; i < maxrates; i++) {
-		rate[i].bitrate = rate_table->info[i].ratekbps / 100;
-		rate[i].hw_value = rate_table->info[i].ratecode;
-		if (rate_table->info[i].short_preamble) {
-			rate[i].hw_value_short = rate_table->info[i].ratecode |
-				rate_table->info[i].short_preamble;
-			rate[i].flags = IEEE80211_RATE_SHORT_PREAMBLE;
-		}
-		sband->n_bitrates++;
-
-		DPRINTF(sc, ATH_DBG_CONFIG, "Rate: %2dMbps, ratecode: %2d\n",
-			rate[i].bitrate / 10, rate[i].hw_value);
-	}
-}
-
-/*
- * Set/change channels.  If the channel is really being changed, it's done
- * by reseting the chip.  To accomplish this we must first cleanup any pending
- * DMA, then restart stuff.
-*/
-int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
-		    struct ath9k_channel *hchan)
-{
-	struct ath_hw *ah = sc->sc_ah;
-	bool fastcc = true, stopped;
-	struct ieee80211_channel *channel = hw->conf.channel;
-	int r;
-
-	if (sc->sc_flags & SC_OP_INVALID)
-		return -EIO;
-
-	ath9k_ps_wakeup(sc);
-
-	/*
-	 * This is only performed if the channel settings have
-	 * actually changed.
-	 *
-	 * To switch channels clear any pending DMA operations;
-	 * wait long enough for the RX fifo to drain, reset the
-	 * hardware at the new frequency, and then re-enable
-	 * the relevant bits of the h/w.
-	 */
-	ath9k_hw_set_interrupts(ah, 0);
-	ath_drain_all_txq(sc, false);
-	stopped = ath_stoprecv(sc);
-
-	/* XXX: do not flush receive queue here. We don't want
-	 * to flush data frames already in queue because of
-	 * changing channel. */
-
-	if (!stopped || (sc->sc_flags & SC_OP_FULL_RESET))
-		fastcc = false;
-
-	DPRINTF(sc, ATH_DBG_CONFIG,
-		"(%u MHz) -> (%u MHz), chanwidth: %d\n",
-		sc->sc_ah->curchan->channel,
-		channel->center_freq, sc->tx_chan_width);
-
-	spin_lock_bh(&sc->sc_resetlock);
-
-	r = ath9k_hw_reset(ah, hchan, fastcc);
-	if (r) {
-		DPRINTF(sc, ATH_DBG_FATAL,
-			"Unable to reset channel (%u Mhz) "
-			"reset status %u\n",
-			channel->center_freq, r);
-		spin_unlock_bh(&sc->sc_resetlock);
-		return r;
-	}
-	spin_unlock_bh(&sc->sc_resetlock);
-
-	sc->sc_flags &= ~SC_OP_FULL_RESET;
-
-	if (ath_startrecv(sc) != 0) {
-		DPRINTF(sc, ATH_DBG_FATAL,
-			"Unable to restart recv logic\n");
-		return -EIO;
-	}
-
-	ath_cache_conf_rate(sc, &hw->conf);
-	ath_update_txpow(sc);
-	ath9k_hw_set_interrupts(ah, sc->imask);
-	ath9k_ps_restore(sc);
-	return 0;
-}
-
-/*
- *  This routine performs the periodic noise floor calibration function
- *  that is used to adjust and optimize the chip performance.  This
- *  takes environmental changes (location, temperature) into account.
- *  When the task is complete, it reschedules itself depending on the
- *  appropriate interval that was calculated.
- */
-static void ath_ani_calibrate(unsigned long data)
-{
-	struct ath_softc *sc = (struct ath_softc *)data;
-	struct ath_hw *ah = sc->sc_ah;
-	bool longcal = false;
-	bool shortcal = false;
-	bool aniflag = false;
-	unsigned int timestamp = jiffies_to_msecs(jiffies);
-	u32 cal_interval, short_cal_interval;
-
-	short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ?
-		ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL;
-
-	/*
-	* don't calibrate when we're scanning.
-	* we are most likely not on our home channel.
-	*/
-	if (sc->sc_flags & SC_OP_SCANNING)
-		goto set_timer;
-
-	/* Long calibration runs independently of short calibration. */
-	if ((timestamp - sc->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) {
-		longcal = true;
-		DPRINTF(sc, ATH_DBG_ANI, "longcal @%lu\n", jiffies);
-		sc->ani.longcal_timer = timestamp;
-	}
-
-	/* Short calibration applies only while caldone is false */
-	if (!sc->ani.caldone) {
-		if ((timestamp - sc->ani.shortcal_timer) >= short_cal_interval) {
-			shortcal = true;
-			DPRINTF(sc, ATH_DBG_ANI, "shortcal @%lu\n", jiffies);
-			sc->ani.shortcal_timer = timestamp;
-			sc->ani.resetcal_timer = timestamp;
-		}
-	} else {
-		if ((timestamp - sc->ani.resetcal_timer) >=
-		    ATH_RESTART_CALINTERVAL) {
-			sc->ani.caldone = ath9k_hw_reset_calvalid(ah);
-			if (sc->ani.caldone)
-				sc->ani.resetcal_timer = timestamp;
-		}
-	}
-
-	/* Verify whether we must check ANI */
-	if ((timestamp - sc->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) {
-		aniflag = true;
-		sc->ani.checkani_timer = timestamp;
-	}
-
-	/* Skip all processing if there's nothing to do. */
-	if (longcal || shortcal || aniflag) {
-		/* Call ANI routine if necessary */
-		if (aniflag)
-			ath9k_hw_ani_monitor(ah, &sc->nodestats, ah->curchan);
-
-		/* Perform calibration if necessary */
-		if (longcal || shortcal) {
-			bool iscaldone = false;
-
-			if (ath9k_hw_calibrate(ah, ah->curchan,
-					       sc->rx_chainmask, longcal,
-					       &iscaldone)) {
-				if (longcal)
-					sc->ani.noise_floor =
-						ath9k_hw_getchan_noise(ah,
-							       ah->curchan);
-
-				DPRINTF(sc, ATH_DBG_ANI,
-					"calibrate chan %u/%x nf: %d\n",
-					ah->curchan->channel,
-					ah->curchan->channelFlags,
-					sc->ani.noise_floor);
-			} else {
-				DPRINTF(sc, ATH_DBG_ANY,
-					"calibrate chan %u/%x failed\n",
-					ah->curchan->channel,
-					ah->curchan->channelFlags);
-			}
-			sc->ani.caldone = iscaldone;
-		}
-	}
-
-set_timer:
-	/*
-	* Set timer interval based on previous results.
-	* The interval must be the shortest necessary to satisfy ANI,
-	* short calibration and long calibration.
-	*/
-	cal_interval = ATH_LONG_CALINTERVAL;
-	if (sc->sc_ah->config.enable_ani)
-		cal_interval = min(cal_interval, (u32)ATH_ANI_POLLINTERVAL);
-	if (!sc->ani.caldone)
-		cal_interval = min(cal_interval, (u32)short_cal_interval);
-
-	mod_timer(&sc->ani.timer, jiffies + msecs_to_jiffies(cal_interval));
-}
-
-/*
- * Update tx/rx chainmask. For legacy association,
- * hard code chainmask to 1x1, for 11n association, use
- * the chainmask configuration, for bt coexistence, use
- * the chainmask configuration even in legacy mode.
- */
-void ath_update_chainmask(struct ath_softc *sc, int is_ht)
-{
-	if (is_ht ||
-	    (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BT_COEX)) {
-		sc->tx_chainmask = sc->sc_ah->caps.tx_chainmask;
-		sc->rx_chainmask = sc->sc_ah->caps.rx_chainmask;
-	} else {
-		sc->tx_chainmask = 1;
-		sc->rx_chainmask = 1;
-	}
-
-	DPRINTF(sc, ATH_DBG_CONFIG, "tx chmask: %d, rx chmask: %d\n",
-		sc->tx_chainmask, sc->rx_chainmask);
-}
-
-static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta)
-{
-	struct ath_node *an;
-
-	an = (struct ath_node *)sta->drv_priv;
-
-	if (sc->sc_flags & SC_OP_TXAGGR) {
-		ath_tx_node_init(sc, an);
-		an->maxampdu = 1 << (IEEE80211_HTCAP_MAXRXAMPDU_FACTOR +
-				     sta->ht_cap.ampdu_factor);
-		an->mpdudensity = parse_mpdudensity(sta->ht_cap.ampdu_density);
-	}
-}
-
-static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta)
-{
-	struct ath_node *an = (struct ath_node *)sta->drv_priv;
-
-	if (sc->sc_flags & SC_OP_TXAGGR)
-		ath_tx_node_cleanup(sc, an);
-}
-
-static void ath9k_tasklet(unsigned long data)
-{
-	struct ath_softc *sc = (struct ath_softc *)data;
-	u32 status = sc->intrstatus;
-
-	if (status & ATH9K_INT_FATAL) {
-		ath_reset(sc, false);
-		return;
-	}
-
-	if (status & (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN)) {
-		spin_lock_bh(&sc->rx.rxflushlock);
-		ath_rx_tasklet(sc, 0);
-		spin_unlock_bh(&sc->rx.rxflushlock);
-	}
-
-	if (status & ATH9K_INT_TX)
-		ath_tx_tasklet(sc);
-
-	/* re-enable hardware interrupt */
-	ath9k_hw_set_interrupts(sc->sc_ah, sc->imask);
-}
-
-irqreturn_t ath_isr(int irq, void *dev)
-{
-#define SCHED_INTR (				\
-		ATH9K_INT_FATAL |		\
-		ATH9K_INT_RXORN |		\
-		ATH9K_INT_RXEOL |		\
-		ATH9K_INT_RX |			\
-		ATH9K_INT_TX |			\
-		ATH9K_INT_BMISS |		\
-		ATH9K_INT_CST |			\
-		ATH9K_INT_TSFOOR)
-
-	struct ath_softc *sc = dev;
-	struct ath_hw *ah = sc->sc_ah;
-	enum ath9k_int status;
-	bool sched = false;
-
-	/*
-	 * The hardware is not ready/present, don't
-	 * touch anything. Note this can happen early
-	 * on if the IRQ is shared.
-	 */
-	if (sc->sc_flags & SC_OP_INVALID)
-		return IRQ_NONE;
-
-	ath9k_ps_wakeup(sc);
-
-	/* shared irq, not for us */
-
-	if (!ath9k_hw_intrpend(ah)) {
-		ath9k_ps_restore(sc);
-		return IRQ_NONE;
-	}
-
-	/*
-	 * Figure out the reason(s) for the interrupt.  Note
-	 * that the hal returns a pseudo-ISR that may include
-	 * bits we haven't explicitly enabled so we mask the
-	 * value to insure we only process bits we requested.
-	 */
-	ath9k_hw_getisr(ah, &status);	/* NB: clears ISR too */
-	status &= sc->imask;	/* discard unasked-for bits */
-
-	/*
-	 * If there are no status bits set, then this interrupt was not
-	 * for me (should have been caught above).
-	 */
-	if (!status) {
-		ath9k_ps_restore(sc);
-		return IRQ_NONE;
-	}
-
-	/* Cache the status */
-	sc->intrstatus = status;
-
-	if (status & SCHED_INTR)
-		sched = true;
-
-	/*
-	 * If a FATAL or RXORN interrupt is received, we have to reset the
-	 * chip immediately.
-	 */
-	if (status & (ATH9K_INT_FATAL | ATH9K_INT_RXORN))
-		goto chip_reset;
-
-	if (status & ATH9K_INT_SWBA)
-		tasklet_schedule(&sc->bcon_tasklet);
-
-	if (status & ATH9K_INT_TXURN)
-		ath9k_hw_updatetxtriglevel(ah, true);
-
-	if (status & ATH9K_INT_MIB) {
-		/*
-		 * Disable interrupts until we service the MIB
-		 * interrupt; otherwise it will continue to
-		 * fire.
-		 */
-		ath9k_hw_set_interrupts(ah, 0);
-		/*
-		 * Let the hal handle the event. We assume
-		 * it will clear whatever condition caused
-		 * the interrupt.
-		 */
-		ath9k_hw_procmibevent(ah, &sc->nodestats);
-		ath9k_hw_set_interrupts(ah, sc->imask);
-	}
-
-	if (status & ATH9K_INT_TIM_TIMER) {
-		if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
-			/* Clear RxAbort bit so that we can
-			 * receive frames */
-			ath9k_hw_setpower(ah, ATH9K_PM_AWAKE);
-			ath9k_hw_setrxabort(ah, 0);
-			sched = true;
-			sc->sc_flags |= SC_OP_WAIT_FOR_BEACON;
-		}
-	}
-
-chip_reset:
-
-	ath9k_ps_restore(sc);
-	ath_debug_stat_interrupt(sc, status);
-
-	if (sched) {
-		/* turn off every interrupt except SWBA */
-		ath9k_hw_set_interrupts(ah, (sc->imask & ATH9K_INT_SWBA));
-		tasklet_schedule(&sc->intr_tq);
-	}
-
-	return IRQ_HANDLED;
-
-#undef SCHED_INTR
-}
-
-static u32 ath_get_extchanmode(struct ath_softc *sc,
-			       struct ieee80211_channel *chan,
-			       enum nl80211_channel_type channel_type)
-{
-	u32 chanmode = 0;
-
-	switch (chan->band) {
-	case IEEE80211_BAND_2GHZ:
-		switch(channel_type) {
-		case NL80211_CHAN_NO_HT:
-		case NL80211_CHAN_HT20:
-			chanmode = CHANNEL_G_HT20;
-			break;
-		case NL80211_CHAN_HT40PLUS:
-			chanmode = CHANNEL_G_HT40PLUS;
-			break;
-		case NL80211_CHAN_HT40MINUS:
-			chanmode = CHANNEL_G_HT40MINUS;
-			break;
-		}
-		break;
-	case IEEE80211_BAND_5GHZ:
-		switch(channel_type) {
-		case NL80211_CHAN_NO_HT:
-		case NL80211_CHAN_HT20:
-			chanmode = CHANNEL_A_HT20;
-			break;
-		case NL80211_CHAN_HT40PLUS:
-			chanmode = CHANNEL_A_HT40PLUS;
-			break;
-		case NL80211_CHAN_HT40MINUS:
-			chanmode = CHANNEL_A_HT40MINUS;
-			break;
-		}
-		break;
-	default:
-		break;
-	}
-
-	return chanmode;
-}
-
-static int ath_setkey_tkip(struct ath_softc *sc, u16 keyix, const u8 *key,
-			   struct ath9k_keyval *hk, const u8 *addr,
-			   bool authenticator)
-{
-	const u8 *key_rxmic;
-	const u8 *key_txmic;
-
-	key_txmic = key + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY;
-	key_rxmic = key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY;
-
-	if (addr == NULL) {
-		/*
-		 * Group key installation - only two key cache entries are used
-		 * regardless of splitmic capability since group key is only
-		 * used either for TX or RX.
-		 */
-		if (authenticator) {
-			memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic));
-			memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_mic));
-		} else {
-			memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic));
-			memcpy(hk->kv_txmic, key_rxmic, sizeof(hk->kv_mic));
-		}
-		return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, addr);
-	}
-	if (!sc->splitmic) {
-		/* TX and RX keys share the same key cache entry. */
-		memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic));
-		memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_txmic));
-		return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, addr);
-	}
-
-	/* Separate key cache entries for TX and RX */
-
-	/* TX key goes at first index, RX key at +32. */
-	memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic));
-	if (!ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, NULL)) {
-		/* TX MIC entry failed. No need to proceed further */
-		DPRINTF(sc, ATH_DBG_FATAL,
-			"Setting TX MIC Key Failed\n");
-		return 0;
-	}
-
-	memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic));
-	/* XXX delete tx key on failure? */
-	return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix + 32, hk, addr);
-}
-
-static int ath_reserve_key_cache_slot_tkip(struct ath_softc *sc)
-{
-	int i;
-
-	for (i = IEEE80211_WEP_NKID; i < sc->keymax / 2; i++) {
-		if (test_bit(i, sc->keymap) ||
-		    test_bit(i + 64, sc->keymap))
-			continue; /* At least one part of TKIP key allocated */
-		if (sc->splitmic &&
-		    (test_bit(i + 32, sc->keymap) ||
-		     test_bit(i + 64 + 32, sc->keymap)))
-			continue; /* At least one part of TKIP key allocated */
-
-		/* Found a free slot for a TKIP key */
-		return i;
-	}
-	return -1;
-}
-
-static int ath_reserve_key_cache_slot(struct ath_softc *sc)
-{
-	int i;
-
-	/* First, try to find slots that would not be available for TKIP. */
-	if (sc->splitmic) {
-		for (i = IEEE80211_WEP_NKID; i < sc->keymax / 4; i++) {
-			if (!test_bit(i, sc->keymap) &&
-			    (test_bit(i + 32, sc->keymap) ||
-			     test_bit(i + 64, sc->keymap) ||
-			     test_bit(i + 64 + 32, sc->keymap)))
-				return i;
-			if (!test_bit(i + 32, sc->keymap) &&
-			    (test_bit(i, sc->keymap) ||
-			     test_bit(i + 64, sc->keymap) ||
-			     test_bit(i + 64 + 32, sc->keymap)))
-				return i + 32;
-			if (!test_bit(i + 64, sc->keymap) &&
-			    (test_bit(i , sc->keymap) ||
-			     test_bit(i + 32, sc->keymap) ||
-			     test_bit(i + 64 + 32, sc->keymap)))
-				return i + 64;
-			if (!test_bit(i + 64 + 32, sc->keymap) &&
-			    (test_bit(i, sc->keymap) ||
-			     test_bit(i + 32, sc->keymap) ||
-			     test_bit(i + 64, sc->keymap)))
-				return i + 64 + 32;
-		}
-	} else {
-		for (i = IEEE80211_WEP_NKID; i < sc->keymax / 2; i++) {
-			if (!test_bit(i, sc->keymap) &&
-			    test_bit(i + 64, sc->keymap))
-				return i;
-			if (test_bit(i, sc->keymap) &&
-			    !test_bit(i + 64, sc->keymap))
-				return i + 64;
-		}
-	}
-
-	/* No partially used TKIP slots, pick any available slot */
-	for (i = IEEE80211_WEP_NKID; i < sc->keymax; i++) {
-		/* Do not allow slots that could be needed for TKIP group keys
-		 * to be used. This limitation could be removed if we know that
-		 * TKIP will not be used. */
-		if (i >= 64 && i < 64 + IEEE80211_WEP_NKID)
-			continue;
-		if (sc->splitmic) {
-			if (i >= 32 && i < 32 + IEEE80211_WEP_NKID)
-				continue;
-			if (i >= 64 + 32 && i < 64 + 32 + IEEE80211_WEP_NKID)
-				continue;
-		}
-
-		if (!test_bit(i, sc->keymap))
-			return i; /* Found a free slot for a key */
-	}
-
-	/* No free slot found */
-	return -1;
-}
-
-static int ath_key_config(struct ath_softc *sc,
-			  struct ieee80211_vif *vif,
-			  struct ieee80211_sta *sta,
-			  struct ieee80211_key_conf *key)
-{
-	struct ath9k_keyval hk;
-	const u8 *mac = NULL;
-	int ret = 0;
-	int idx;
-
-	memset(&hk, 0, sizeof(hk));
-
-	switch (key->alg) {
-	case ALG_WEP:
-		hk.kv_type = ATH9K_CIPHER_WEP;
-		break;
-	case ALG_TKIP:
-		hk.kv_type = ATH9K_CIPHER_TKIP;
-		break;
-	case ALG_CCMP:
-		hk.kv_type = ATH9K_CIPHER_AES_CCM;
-		break;
-	default:
-		return -EOPNOTSUPP;
-	}
-
-	hk.kv_len = key->keylen;
-	memcpy(hk.kv_val, key->key, key->keylen);
-
-	if (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
-		/* For now, use the default keys for broadcast keys. This may
-		 * need to change with virtual interfaces. */
-		idx = key->keyidx;
-	} else if (key->keyidx) {
-		if (WARN_ON(!sta))
-			return -EOPNOTSUPP;
-		mac = sta->addr;
-
-		if (vif->type != NL80211_IFTYPE_AP) {
-			/* Only keyidx 0 should be used with unicast key, but
-			 * allow this for client mode for now. */
-			idx = key->keyidx;
-		} else
-			return -EIO;
-	} else {
-		if (WARN_ON(!sta))
-			return -EOPNOTSUPP;
-		mac = sta->addr;
-
-		if (key->alg == ALG_TKIP)
-			idx = ath_reserve_key_cache_slot_tkip(sc);
-		else
-			idx = ath_reserve_key_cache_slot(sc);
-		if (idx < 0)
-			return -ENOSPC; /* no free key cache entries */
-	}
-
-	if (key->alg == ALG_TKIP)
-		ret = ath_setkey_tkip(sc, idx, key->key, &hk, mac,
-				      vif->type == NL80211_IFTYPE_AP);
-	else
-		ret = ath9k_hw_set_keycache_entry(sc->sc_ah, idx, &hk, mac);
-
-	if (!ret)
-		return -EIO;
-
-	set_bit(idx, sc->keymap);
-	if (key->alg == ALG_TKIP) {
-		set_bit(idx + 64, sc->keymap);
-		if (sc->splitmic) {
-			set_bit(idx + 32, sc->keymap);
-			set_bit(idx + 64 + 32, sc->keymap);
-		}
-	}
-
-	return idx;
-}
-
-static void ath_key_delete(struct ath_softc *sc, struct ieee80211_key_conf *key)
-{
-	ath9k_hw_keyreset(sc->sc_ah, key->hw_key_idx);
-	if (key->hw_key_idx < IEEE80211_WEP_NKID)
-		return;
-
-	clear_bit(key->hw_key_idx, sc->keymap);
-	if (key->alg != ALG_TKIP)
-		return;
-
-	clear_bit(key->hw_key_idx + 64, sc->keymap);
-	if (sc->splitmic) {
-		clear_bit(key->hw_key_idx + 32, sc->keymap);
-		clear_bit(key->hw_key_idx + 64 + 32, sc->keymap);
-	}
-}
-
-static void setup_ht_cap(struct ath_softc *sc,
-			 struct ieee80211_sta_ht_cap *ht_info)
-{
-#define	ATH9K_HT_CAP_MAXRXAMPDU_65536 0x3	/* 2 ^ 16 */
-#define	ATH9K_HT_CAP_MPDUDENSITY_8 0x6		/* 8 usec */
-
-	ht_info->ht_supported = true;
-	ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
-		       IEEE80211_HT_CAP_SM_PS |
-		       IEEE80211_HT_CAP_SGI_40 |
-		       IEEE80211_HT_CAP_DSSSCCK40;
-
-	ht_info->ampdu_factor = ATH9K_HT_CAP_MAXRXAMPDU_65536;
-	ht_info->ampdu_density = ATH9K_HT_CAP_MPDUDENSITY_8;
-
-	/* set up supported mcs set */
-	memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
-
-	switch(sc->rx_chainmask) {
-	case 1:
-		ht_info->mcs.rx_mask[0] = 0xff;
-		break;
-	case 3:
-	case 5:
-	case 7:
-	default:
-		ht_info->mcs.rx_mask[0] = 0xff;
-		ht_info->mcs.rx_mask[1] = 0xff;
-		break;
-	}
-
-	ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
-}
-
-static void ath9k_bss_assoc_info(struct ath_softc *sc,
-				 struct ieee80211_vif *vif,
-				 struct ieee80211_bss_conf *bss_conf)
-{
-	struct ath_vif *avp = (void *)vif->drv_priv;
-
-	if (bss_conf->assoc) {
-		DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info ASSOC %d, bssid: %pM\n",
-			bss_conf->aid, sc->curbssid);
-
-		/* New association, store aid */
-		if (avp->av_opmode == NL80211_IFTYPE_STATION) {
-			sc->curaid = bss_conf->aid;
-			ath9k_hw_write_associd(sc);
-		}
-
-		/* Configure the beacon */
-		ath_beacon_config(sc, vif);
-
-		/* Reset rssi stats */
-		sc->nodestats.ns_avgbrssi = ATH_RSSI_DUMMY_MARKER;
-		sc->nodestats.ns_avgrssi = ATH_RSSI_DUMMY_MARKER;
-		sc->nodestats.ns_avgtxrssi = ATH_RSSI_DUMMY_MARKER;
-		sc->nodestats.ns_avgtxrate = ATH_RATE_DUMMY_MARKER;
-
-		/* Start ANI */
-		mod_timer(&sc->ani.timer,
-			  jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL));
-	} else {
-		DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info DISASSOC\n");
-		sc->curaid = 0;
-	}
-}
-
-/********************************/
-/*	 LED functions		*/
-/********************************/
-
-static void ath_led_blink_work(struct work_struct *work)
-{
-	struct ath_softc *sc = container_of(work, struct ath_softc,
-					    ath_led_blink_work.work);
-
-	if (!(sc->sc_flags & SC_OP_LED_ASSOCIATED))
-		return;
-
-	if ((sc->led_on_duration == ATH_LED_ON_DURATION_IDLE) ||
-	    (sc->led_off_duration == ATH_LED_OFF_DURATION_IDLE))
-		ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 0);
-	else
-		ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN,
-				  (sc->sc_flags & SC_OP_LED_ON) ? 1 : 0);
-
-	queue_delayed_work(sc->hw->workqueue, &sc->ath_led_blink_work,
-			   (sc->sc_flags & SC_OP_LED_ON) ?
-			   msecs_to_jiffies(sc->led_off_duration) :
-			   msecs_to_jiffies(sc->led_on_duration));
-
-	sc->led_on_duration = sc->led_on_cnt ?
-			max((ATH_LED_ON_DURATION_IDLE - sc->led_on_cnt), 25) :
-			ATH_LED_ON_DURATION_IDLE;
-	sc->led_off_duration = sc->led_off_cnt ?
-			max((ATH_LED_OFF_DURATION_IDLE - sc->led_off_cnt), 10) :
-			ATH_LED_OFF_DURATION_IDLE;
-	sc->led_on_cnt = sc->led_off_cnt = 0;
-	if (sc->sc_flags & SC_OP_LED_ON)
-		sc->sc_flags &= ~SC_OP_LED_ON;
-	else
-		sc->sc_flags |= SC_OP_LED_ON;
-}
-
-static void ath_led_brightness(struct led_classdev *led_cdev,
-			       enum led_brightness brightness)
-{
-	struct ath_led *led = container_of(led_cdev, struct ath_led, led_cdev);
-	struct ath_softc *sc = led->sc;
-
-	switch (brightness) {
-	case LED_OFF:
-		if (led->led_type == ATH_LED_ASSOC ||
-		    led->led_type == ATH_LED_RADIO) {
-			ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN,
-				(led->led_type == ATH_LED_RADIO));
-			sc->sc_flags &= ~SC_OP_LED_ASSOCIATED;
-			if (led->led_type == ATH_LED_RADIO)
-				sc->sc_flags &= ~SC_OP_LED_ON;
-		} else {
-			sc->led_off_cnt++;
-		}
-		break;
-	case LED_FULL:
-		if (led->led_type == ATH_LED_ASSOC) {
-			sc->sc_flags |= SC_OP_LED_ASSOCIATED;
-			queue_delayed_work(sc->hw->workqueue,
-					   &sc->ath_led_blink_work, 0);
-		} else if (led->led_type == ATH_LED_RADIO) {
-			ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 0);
-			sc->sc_flags |= SC_OP_LED_ON;
-		} else {
-			sc->led_on_cnt++;
-		}
-		break;
-	default:
-		break;
-	}
-}
-
-static int ath_register_led(struct ath_softc *sc, struct ath_led *led,
-			    char *trigger)
-{
-	int ret;
-
-	led->sc = sc;
-	led->led_cdev.name = led->name;
-	led->led_cdev.default_trigger = trigger;
-	led->led_cdev.brightness_set = ath_led_brightness;
-
-	ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &led->led_cdev);
-	if (ret)
-		DPRINTF(sc, ATH_DBG_FATAL,
-			"Failed to register led:%s", led->name);
-	else
-		led->registered = 1;
-	return ret;
-}
-
-static void ath_unregister_led(struct ath_led *led)
-{
-	if (led->registered) {
-		led_classdev_unregister(&led->led_cdev);
-		led->registered = 0;
-	}
-}
-
-static void ath_deinit_leds(struct ath_softc *sc)
-{
-	cancel_delayed_work_sync(&sc->ath_led_blink_work);
-	ath_unregister_led(&sc->assoc_led);
-	sc->sc_flags &= ~SC_OP_LED_ASSOCIATED;
-	ath_unregister_led(&sc->tx_led);
-	ath_unregister_led(&sc->rx_led);
-	ath_unregister_led(&sc->radio_led);
-	ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
-}
-
-static void ath_init_leds(struct ath_softc *sc)
-{
-	char *trigger;
-	int ret;
-
-	/* Configure gpio 1 for output */
-	ath9k_hw_cfg_output(sc->sc_ah, ATH_LED_PIN,
-			    AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
-	/* LED off, active low */
-	ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
-
-	INIT_DELAYED_WORK(&sc->ath_led_blink_work, ath_led_blink_work);
-
-	trigger = ieee80211_get_radio_led_name(sc->hw);
-	snprintf(sc->radio_led.name, sizeof(sc->radio_led.name),
-		"ath9k-%s::radio", wiphy_name(sc->hw->wiphy));
-	ret = ath_register_led(sc, &sc->radio_led, trigger);
-	sc->radio_led.led_type = ATH_LED_RADIO;
-	if (ret)
-		goto fail;
-
-	trigger = ieee80211_get_assoc_led_name(sc->hw);
-	snprintf(sc->assoc_led.name, sizeof(sc->assoc_led.name),
-		"ath9k-%s::assoc", wiphy_name(sc->hw->wiphy));
-	ret = ath_register_led(sc, &sc->assoc_led, trigger);
-	sc->assoc_led.led_type = ATH_LED_ASSOC;
-	if (ret)
-		goto fail;
-
-	trigger = ieee80211_get_tx_led_name(sc->hw);
-	snprintf(sc->tx_led.name, sizeof(sc->tx_led.name),
-		"ath9k-%s::tx", wiphy_name(sc->hw->wiphy));
-	ret = ath_register_led(sc, &sc->tx_led, trigger);
-	sc->tx_led.led_type = ATH_LED_TX;
-	if (ret)
-		goto fail;
-
-	trigger = ieee80211_get_rx_led_name(sc->hw);
-	snprintf(sc->rx_led.name, sizeof(sc->rx_led.name),
-		"ath9k-%s::rx", wiphy_name(sc->hw->wiphy));
-	ret = ath_register_led(sc, &sc->rx_led, trigger);
-	sc->rx_led.led_type = ATH_LED_RX;
-	if (ret)
-		goto fail;
-
-	return;
-
-fail:
-	ath_deinit_leds(sc);
-}
-
-void ath_radio_enable(struct ath_softc *sc)
-{
-	struct ath_hw *ah = sc->sc_ah;
-	struct ieee80211_channel *channel = sc->hw->conf.channel;
-	int r;
-
-	ath9k_ps_wakeup(sc);
-	spin_lock_bh(&sc->sc_resetlock);
-
-	r = ath9k_hw_reset(ah, ah->curchan, false);
-
-	if (r) {
-		DPRINTF(sc, ATH_DBG_FATAL,
-			"Unable to reset channel %u (%uMhz) ",
-			"reset status %u\n",
-			channel->center_freq, r);
-	}
-	spin_unlock_bh(&sc->sc_resetlock);
-
-	ath_update_txpow(sc);
-	if (ath_startrecv(sc) != 0) {
-		DPRINTF(sc, ATH_DBG_FATAL,
-			"Unable to restart recv logic\n");
-		return;
-	}
-
-	if (sc->sc_flags & SC_OP_BEACONS)
-		ath_beacon_config(sc, NULL);	/* restart beacons */
-
-	/* Re-Enable  interrupts */
-	ath9k_hw_set_interrupts(ah, sc->imask);
-
-	/* Enable LED */
-	ath9k_hw_cfg_output(ah, ATH_LED_PIN,
-			    AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
-	ath9k_hw_set_gpio(ah, ATH_LED_PIN, 0);
-
-	ieee80211_wake_queues(sc->hw);
-	ath9k_ps_restore(sc);
-}
-
-void ath_radio_disable(struct ath_softc *sc)
-{
-	struct ath_hw *ah = sc->sc_ah;
-	struct ieee80211_channel *channel = sc->hw->conf.channel;
-	int r;
-
-	ath9k_ps_wakeup(sc);
-	ieee80211_stop_queues(sc->hw);
-
-	/* Disable LED */
-	ath9k_hw_set_gpio(ah, ATH_LED_PIN, 1);
-	ath9k_hw_cfg_gpio_input(ah, ATH_LED_PIN);
-
-	/* Disable interrupts */
-	ath9k_hw_set_interrupts(ah, 0);
-
-	ath_drain_all_txq(sc, false);	/* clear pending tx frames */
-	ath_stoprecv(sc);		/* turn off frame recv */
-	ath_flushrecv(sc);		/* flush recv queue */
-
-	spin_lock_bh(&sc->sc_resetlock);
-	r = ath9k_hw_reset(ah, ah->curchan, false);
-	if (r) {
-		DPRINTF(sc, ATH_DBG_FATAL,
-			"Unable to reset channel %u (%uMhz) "
-			"reset status %u\n",
-			channel->center_freq, r);
-	}
-	spin_unlock_bh(&sc->sc_resetlock);
-
-	ath9k_hw_phy_disable(ah);
-	ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
-	ath9k_ps_restore(sc);
-}
-
-#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
-
-/*******************/
-/*	Rfkill	   */
-/*******************/
-
-static bool ath_is_rfkill_set(struct ath_softc *sc)
-{
-	struct ath_hw *ah = sc->sc_ah;
-
-	return ath9k_hw_gpio_get(ah, ah->rfkill_gpio) ==
-				  ah->rfkill_polarity;
-}
-
-/* h/w rfkill poll function */
-static void ath_rfkill_poll(struct work_struct *work)
-{
-	struct ath_softc *sc = container_of(work, struct ath_softc,
-					    rf_kill.rfkill_poll.work);
-	bool radio_on;
-
-	if (sc->sc_flags & SC_OP_INVALID)
-		return;
-
-	radio_on = !ath_is_rfkill_set(sc);
-
-	/*
-	 * enable/disable radio only when there is a
-	 * state change in RF switch
-	 */
-	if (radio_on == !!(sc->sc_flags & SC_OP_RFKILL_HW_BLOCKED)) {
-		enum rfkill_state state;
-
-		if (sc->sc_flags & SC_OP_RFKILL_SW_BLOCKED) {
-			state = radio_on ? RFKILL_STATE_SOFT_BLOCKED
-				: RFKILL_STATE_HARD_BLOCKED;
-		} else if (radio_on) {
-			ath_radio_enable(sc);
-			state = RFKILL_STATE_UNBLOCKED;
-		} else {
-			ath_radio_disable(sc);
-			state = RFKILL_STATE_HARD_BLOCKED;
-		}
-
-		if (state == RFKILL_STATE_HARD_BLOCKED)
-			sc->sc_flags |= SC_OP_RFKILL_HW_BLOCKED;
-		else
-			sc->sc_flags &= ~SC_OP_RFKILL_HW_BLOCKED;
-
-		rfkill_force_state(sc->rf_kill.rfkill, state);
-	}
-
-	queue_delayed_work(sc->hw->workqueue, &sc->rf_kill.rfkill_poll,
-			   msecs_to_jiffies(ATH_RFKILL_POLL_INTERVAL));
-}
-
-/* s/w rfkill handler */
-static int ath_sw_toggle_radio(void *data, enum rfkill_state state)
-{
-	struct ath_softc *sc = data;
-
-	switch (state) {
-	case RFKILL_STATE_SOFT_BLOCKED:
-		if (!(sc->sc_flags & (SC_OP_RFKILL_HW_BLOCKED |
-		    SC_OP_RFKILL_SW_BLOCKED)))
-			ath_radio_disable(sc);
-		sc->sc_flags |= SC_OP_RFKILL_SW_BLOCKED;
-		return 0;
-	case RFKILL_STATE_UNBLOCKED:
-		if ((sc->sc_flags & SC_OP_RFKILL_SW_BLOCKED)) {
-			sc->sc_flags &= ~SC_OP_RFKILL_SW_BLOCKED;
-			if (sc->sc_flags & SC_OP_RFKILL_HW_BLOCKED) {
-				DPRINTF(sc, ATH_DBG_FATAL, "Can't turn on the"
-					"radio as it is disabled by h/w\n");
-				return -EPERM;
-			}
-			ath_radio_enable(sc);
-		}
-		return 0;
-	default:
-		return -EINVAL;
-	}
-}
-
-/* Init s/w rfkill */
-static int ath_init_sw_rfkill(struct ath_softc *sc)
-{
-	sc->rf_kill.rfkill = rfkill_allocate(wiphy_dev(sc->hw->wiphy),
-					     RFKILL_TYPE_WLAN);
-	if (!sc->rf_kill.rfkill) {
-		DPRINTF(sc, ATH_DBG_FATAL, "Failed to allocate rfkill\n");
-		return -ENOMEM;
-	}
-
-	snprintf(sc->rf_kill.rfkill_name, sizeof(sc->rf_kill.rfkill_name),
-		"ath9k-%s::rfkill", wiphy_name(sc->hw->wiphy));
-	sc->rf_kill.rfkill->name = sc->rf_kill.rfkill_name;
-	sc->rf_kill.rfkill->data = sc;
-	sc->rf_kill.rfkill->toggle_radio = ath_sw_toggle_radio;
-	sc->rf_kill.rfkill->state = RFKILL_STATE_UNBLOCKED;
-
-	return 0;
-}
-
-/* Deinitialize rfkill */
-static void ath_deinit_rfkill(struct ath_softc *sc)
-{
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-		cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll);
-
-	if (sc->sc_flags & SC_OP_RFKILL_REGISTERED) {
-		rfkill_unregister(sc->rf_kill.rfkill);
-		sc->sc_flags &= ~SC_OP_RFKILL_REGISTERED;
-		sc->rf_kill.rfkill = NULL;
-	}
-}
-
-static int ath_start_rfkill_poll(struct ath_softc *sc)
-{
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-		queue_delayed_work(sc->hw->workqueue,
-				   &sc->rf_kill.rfkill_poll, 0);
-
-	if (!(sc->sc_flags & SC_OP_RFKILL_REGISTERED)) {
-		if (rfkill_register(sc->rf_kill.rfkill)) {
-			DPRINTF(sc, ATH_DBG_FATAL,
-				"Unable to register rfkill\n");
-			rfkill_free(sc->rf_kill.rfkill);
-
-			/* Deinitialize the device */
-			ath_cleanup(sc);
-			return -EIO;
-		} else {
-			sc->sc_flags |= SC_OP_RFKILL_REGISTERED;
-		}
-	}
-
-	return 0;
-}
-#endif /* CONFIG_RFKILL */
-
-void ath_cleanup(struct ath_softc *sc)
-{
-	ath_detach(sc);
-	free_irq(sc->irq, sc);
-	ath_bus_cleanup(sc);
-	kfree(sc->sec_wiphy);
-	ieee80211_free_hw(sc->hw);
-}
-
-void ath_detach(struct ath_softc *sc)
-{
-	struct ieee80211_hw *hw = sc->hw;
-	int i = 0;
-
-	ath9k_ps_wakeup(sc);
-
-	DPRINTF(sc, ATH_DBG_CONFIG, "Detach ATH hw\n");
-
-#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
-	ath_deinit_rfkill(sc);
-#endif
-	ath_deinit_leds(sc);
-	cancel_work_sync(&sc->chan_work);
-	cancel_delayed_work_sync(&sc->wiphy_work);
-
-	for (i = 0; i < sc->num_sec_wiphy; i++) {
-		struct ath_wiphy *aphy = sc->sec_wiphy[i];
-		if (aphy == NULL)
-			continue;
-		sc->sec_wiphy[i] = NULL;
-		ieee80211_unregister_hw(aphy->hw);
-		ieee80211_free_hw(aphy->hw);
-	}
-	ieee80211_unregister_hw(hw);
-	ath_rx_cleanup(sc);
-	ath_tx_cleanup(sc);
-
-	tasklet_kill(&sc->intr_tq);
-	tasklet_kill(&sc->bcon_tasklet);
-
-	if (!(sc->sc_flags & SC_OP_INVALID))
-		ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE);
-
-	/* cleanup tx queues */
-	for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
-		if (ATH_TXQ_SETUP(sc, i))
-			ath_tx_cleanupq(sc, &sc->tx.txq[i]);
-
-	ath9k_hw_detach(sc->sc_ah);
-	ath9k_exit_debug(sc);
-	ath9k_ps_restore(sc);
-}
-
-static int ath9k_reg_notifier(struct wiphy *wiphy,
-			      struct regulatory_request *request)
-{
-	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
-	struct ath_wiphy *aphy = hw->priv;
-	struct ath_softc *sc = aphy->sc;
-	struct ath_regulatory *reg = &sc->sc_ah->regulatory;
-
-	return ath_reg_notifier_apply(wiphy, request, reg);
-}
-
-static int ath_init(u16 devid, struct ath_softc *sc)
-{
-	struct ath_hw *ah = NULL;
-	int status;
-	int error = 0, i;
-	int csz = 0;
-
-	/* XXX: hardware will not be ready until ath_open() being called */
-	sc->sc_flags |= SC_OP_INVALID;
-
-	if (ath9k_init_debug(sc) < 0)
-		printk(KERN_ERR "Unable to create debugfs files\n");
-
-	spin_lock_init(&sc->wiphy_lock);
-	spin_lock_init(&sc->sc_resetlock);
-	spin_lock_init(&sc->sc_serial_rw);
-	mutex_init(&sc->mutex);
-	tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc);
-	tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet,
-		     (unsigned long)sc);
-
-	/*
-	 * Cache line size is used to size and align various
-	 * structures used to communicate with the hardware.
-	 */
-	ath_read_cachesize(sc, &csz);
-	/* XXX assert csz is non-zero */
-	sc->cachelsz = csz << 2;	/* convert to bytes */
-
-	ah = ath9k_hw_attach(devid, sc, &status);
-	if (ah == NULL) {
-		DPRINTF(sc, ATH_DBG_FATAL,
-			"Unable to attach hardware; HAL status %d\n", status);
-		error = -ENXIO;
-		goto bad;
-	}
-	sc->sc_ah = ah;
-
-	/* Get the hardware key cache size. */
-	sc->keymax = ah->caps.keycache_size;
-	if (sc->keymax > ATH_KEYMAX) {
-		DPRINTF(sc, ATH_DBG_ANY,
-			"Warning, using only %u entries in %u key cache\n",
-			ATH_KEYMAX, sc->keymax);
-		sc->keymax = ATH_KEYMAX;
-	}
-
-	/*
-	 * Reset the key cache since some parts do not
-	 * reset the contents on initial power up.
-	 */
-	for (i = 0; i < sc->keymax; i++)
-		ath9k_hw_keyreset(ah, (u16) i);
-
-	if (ath_regd_init(&sc->sc_ah->regulatory, sc->hw->wiphy,
-			  ath9k_reg_notifier))
-		goto bad;
-
-	/* default to MONITOR mode */
-	sc->sc_ah->opmode = NL80211_IFTYPE_MONITOR;
-
-	/* Setup rate tables */
-
-	ath_rate_attach(sc);
-	ath_setup_rates(sc, IEEE80211_BAND_2GHZ);
-	ath_setup_rates(sc, IEEE80211_BAND_5GHZ);
-
-	/*
-	 * Allocate hardware transmit queues: one queue for
-	 * beacon frames and one data queue for each QoS
-	 * priority.  Note that the hal handles reseting
-	 * these queues at the needed time.
-	 */
-	sc->beacon.beaconq = ath_beaconq_setup(ah);
-	if (sc->beacon.beaconq == -1) {
-		DPRINTF(sc, ATH_DBG_FATAL,
-			"Unable to setup a beacon xmit queue\n");
-		error = -EIO;
-		goto bad2;
-	}
-	sc->beacon.cabq = ath_txq_setup(sc, ATH9K_TX_QUEUE_CAB, 0);
-	if (sc->beacon.cabq == NULL) {
-		DPRINTF(sc, ATH_DBG_FATAL,
-			"Unable to setup CAB xmit queue\n");
-		error = -EIO;
-		goto bad2;
-	}
-
-	sc->config.cabqReadytime = ATH_CABQ_READY_TIME;
-	ath_cabq_update(sc);
-
-	for (i = 0; i < ARRAY_SIZE(sc->tx.hwq_map); i++)
-		sc->tx.hwq_map[i] = -1;
-
-	/* Setup data queues */
-	/* NB: ensure BK queue is the lowest priority h/w queue */
-	if (!ath_tx_setup(sc, ATH9K_WME_AC_BK)) {
-		DPRINTF(sc, ATH_DBG_FATAL,
-			"Unable to setup xmit queue for BK traffic\n");
-		error = -EIO;
-		goto bad2;
-	}
-
-	if (!ath_tx_setup(sc, ATH9K_WME_AC_BE)) {
-		DPRINTF(sc, ATH_DBG_FATAL,
-			"Unable to setup xmit queue for BE traffic\n");
-		error = -EIO;
-		goto bad2;
-	}
-	if (!ath_tx_setup(sc, ATH9K_WME_AC_VI)) {
-		DPRINTF(sc, ATH_DBG_FATAL,
-			"Unable to setup xmit queue for VI traffic\n");
-		error = -EIO;
-		goto bad2;
-	}
-	if (!ath_tx_setup(sc, ATH9K_WME_AC_VO)) {
-		DPRINTF(sc, ATH_DBG_FATAL,
-			"Unable to setup xmit queue for VO traffic\n");
-		error = -EIO;
-		goto bad2;
-	}
-
-	/* Initializes the noise floor to a reasonable default value.
-	 * Later on this will be updated during ANI processing. */
-
-	sc->ani.noise_floor = ATH_DEFAULT_NOISE_FLOOR;
-	setup_timer(&sc->ani.timer, ath_ani_calibrate, (unsigned long)sc);
-
-	if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER,
-				   ATH9K_CIPHER_TKIP, NULL)) {
-		/*
-		 * Whether we should enable h/w TKIP MIC.
-		 * XXX: if we don't support WME TKIP MIC, then we wouldn't
-		 * report WMM capable, so it's always safe to turn on
-		 * TKIP MIC in this case.
-		 */
-		ath9k_hw_setcapability(sc->sc_ah, ATH9K_CAP_TKIP_MIC,
-				       0, 1, NULL);
-	}
-
-	/*
-	 * Check whether the separate key cache entries
-	 * are required to handle both tx+rx MIC keys.
-	 * With split mic keys the number of stations is limited
-	 * to 27 otherwise 59.
-	 */
-	if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER,
-				   ATH9K_CIPHER_TKIP, NULL)
-	    && ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER,
-				      ATH9K_CIPHER_MIC, NULL)
-	    && ath9k_hw_getcapability(ah, ATH9K_CAP_TKIP_SPLIT,
-				      0, NULL))
-		sc->splitmic = 1;
-
-	/* turn on mcast key search if possible */
-	if (!ath9k_hw_getcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 0, NULL))
-		(void)ath9k_hw_setcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 1,
-					     1, NULL);
-
-	sc->config.txpowlimit = ATH_TXPOWER_MAX;
-
-	/* 11n Capabilities */
-	if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
-		sc->sc_flags |= SC_OP_TXAGGR;
-		sc->sc_flags |= SC_OP_RXAGGR;
-	}
-
-	sc->tx_chainmask = ah->caps.tx_chainmask;
-	sc->rx_chainmask = ah->caps.rx_chainmask;
-
-	ath9k_hw_setcapability(ah, ATH9K_CAP_DIVERSITY, 1, true, NULL);
-	sc->rx.defant = ath9k_hw_getdefantenna(ah);
-
-	if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK)
-		memcpy(sc->bssidmask, ath_bcast_mac, ETH_ALEN);
-
-	sc->beacon.slottime = ATH9K_SLOT_TIME_9;	/* default to short slot time */
-
-	/* initialize beacon slots */
-	for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) {
-		sc->beacon.bslot[i] = NULL;
-		sc->beacon.bslot_aphy[i] = NULL;
-	}
-
-	/* setup channels and rates */
-
-	sc->sbands[IEEE80211_BAND_2GHZ].channels = ath9k_2ghz_chantable;
-	sc->sbands[IEEE80211_BAND_2GHZ].bitrates =
-		sc->rates[IEEE80211_BAND_2GHZ];
-	sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ;
-	sc->sbands[IEEE80211_BAND_2GHZ].n_channels =
-		ARRAY_SIZE(ath9k_2ghz_chantable);
-
-	if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) {
-		sc->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_chantable;
-		sc->sbands[IEEE80211_BAND_5GHZ].bitrates =
-			sc->rates[IEEE80211_BAND_5GHZ];
-		sc->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ;
-		sc->sbands[IEEE80211_BAND_5GHZ].n_channels =
-			ARRAY_SIZE(ath9k_5ghz_chantable);
-	}
-
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BT_COEX)
-		ath9k_hw_btcoex_enable(sc->sc_ah);
-
-	return 0;
-bad2:
-	/* cleanup tx queues */
-	for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
-		if (ATH_TXQ_SETUP(sc, i))
-			ath_tx_cleanupq(sc, &sc->tx.txq[i]);
-bad:
-	if (ah)
-		ath9k_hw_detach(ah);
-	ath9k_exit_debug(sc);
-
-	return error;
-}
-
-void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
-{
-	hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
-		IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
-		IEEE80211_HW_SIGNAL_DBM |
-		IEEE80211_HW_AMPDU_AGGREGATION |
-		IEEE80211_HW_SUPPORTS_PS |
-		IEEE80211_HW_PS_NULLFUNC_STACK |
-		IEEE80211_HW_SPECTRUM_MGMT;
-
-	if (AR_SREV_9160_10_OR_LATER(sc->sc_ah) || modparam_nohwcrypt)
-		hw->flags |= IEEE80211_HW_MFP_CAPABLE;
-
-	hw->wiphy->interface_modes =
-		BIT(NL80211_IFTYPE_AP) |
-		BIT(NL80211_IFTYPE_STATION) |
-		BIT(NL80211_IFTYPE_ADHOC) |
-		BIT(NL80211_IFTYPE_MESH_POINT);
-
-	hw->queues = 4;
-	hw->max_rates = 4;
-	hw->channel_change_time = 5000;
-	hw->max_listen_interval = 10;
-	hw->max_rate_tries = ATH_11N_TXMAXTRY;
-	hw->sta_data_size = sizeof(struct ath_node);
-	hw->vif_data_size = sizeof(struct ath_vif);
-
-	hw->rate_control_algorithm = "ath9k_rate_control";
-
-	hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
-		&sc->sbands[IEEE80211_BAND_2GHZ];
-	if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes))
-		hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
-			&sc->sbands[IEEE80211_BAND_5GHZ];
-}
-
-int ath_attach(u16 devid, struct ath_softc *sc)
-{
-	struct ieee80211_hw *hw = sc->hw;
-	int error = 0, i;
-	struct ath_regulatory *reg;
-
-	DPRINTF(sc, ATH_DBG_CONFIG, "Attach ATH hw\n");
-
-	error = ath_init(devid, sc);
-	if (error != 0)
-		return error;
-
-	reg = &sc->sc_ah->regulatory;
-
-	/* get mac address from hardware and set in mac80211 */
-
-	SET_IEEE80211_PERM_ADDR(hw, sc->sc_ah->macaddr);
-
-	ath_set_hw_capab(sc, hw);
-
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
-		setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap);
-		if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes))
-			setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_5GHZ].ht_cap);
-	}
-
-	/* initialize tx/rx engine */
-	error = ath_tx_init(sc, ATH_TXBUF);
-	if (error != 0)
-		goto error_attach;
-
-	error = ath_rx_init(sc, ATH_RXBUF);
-	if (error != 0)
-		goto error_attach;
-
-#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
-	/* Initialze h/w Rfkill */
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-		INIT_DELAYED_WORK(&sc->rf_kill.rfkill_poll, ath_rfkill_poll);
-
-	/* Initialize s/w rfkill */
-	error = ath_init_sw_rfkill(sc);
-	if (error)
-		goto error_attach;
-#endif
-
-	INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work);
-	INIT_DELAYED_WORK(&sc->wiphy_work, ath9k_wiphy_work);
-	sc->wiphy_scheduler_int = msecs_to_jiffies(500);
-
-	error = ieee80211_register_hw(hw);
-
-	if (!ath_is_world_regd(reg)) {
-		error = regulatory_hint(hw->wiphy, reg->alpha2);
-		if (error)
-			goto error_attach;
-	}
-
-	/* Initialize LED control */
-	ath_init_leds(sc);
-
-
-	return 0;
-
-error_attach:
-	/* cleanup tx queues */
-	for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
-		if (ATH_TXQ_SETUP(sc, i))
-			ath_tx_cleanupq(sc, &sc->tx.txq[i]);
-
-	ath9k_hw_detach(sc->sc_ah);
-	ath9k_exit_debug(sc);
-
-	return error;
-}
-
-int ath_reset(struct ath_softc *sc, bool retry_tx)
-{
-	struct ath_hw *ah = sc->sc_ah;
-	struct ieee80211_hw *hw = sc->hw;
-	int r;
-
-	ath9k_hw_set_interrupts(ah, 0);
-	ath_drain_all_txq(sc, retry_tx);
-	ath_stoprecv(sc);
-	ath_flushrecv(sc);
-
-	spin_lock_bh(&sc->sc_resetlock);
-	r = ath9k_hw_reset(ah, sc->sc_ah->curchan, false);
-	if (r)
-		DPRINTF(sc, ATH_DBG_FATAL,
-			"Unable to reset hardware; reset status %u\n", r);
-	spin_unlock_bh(&sc->sc_resetlock);
-
-	if (ath_startrecv(sc) != 0)
-		DPRINTF(sc, ATH_DBG_FATAL, "Unable to start recv logic\n");
-
-	/*
-	 * We may be doing a reset in response to a request
-	 * that changes the channel so update any state that
-	 * might change as a result.
-	 */
-	ath_cache_conf_rate(sc, &hw->conf);
-
-	ath_update_txpow(sc);
-
-	if (sc->sc_flags & SC_OP_BEACONS)
-		ath_beacon_config(sc, NULL);	/* restart beacons */
-
-	ath9k_hw_set_interrupts(ah, sc->imask);
-
-	if (retry_tx) {
-		int i;
-		for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
-			if (ATH_TXQ_SETUP(sc, i)) {
-				spin_lock_bh(&sc->tx.txq[i].axq_lock);
-				ath_txq_schedule(sc, &sc->tx.txq[i]);
-				spin_unlock_bh(&sc->tx.txq[i].axq_lock);
-			}
-		}
-	}
-
-	return r;
-}
-
-/*
- *  This function will allocate both the DMA descriptor structure, and the
- *  buffers it contains.  These are used to contain the descriptors used
- *  by the system.
-*/
-int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
-		      struct list_head *head, const char *name,
-		      int nbuf, int ndesc)
-{
-#define	DS2PHYS(_dd, _ds)						\
-	((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc))
-#define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0)
-#define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096)
-
-	struct ath_desc *ds;
-	struct ath_buf *bf;
-	int i, bsize, error;
-
-	DPRINTF(sc, ATH_DBG_CONFIG, "%s DMA: %u buffers %u desc/buf\n",
-		name, nbuf, ndesc);
-
-	INIT_LIST_HEAD(head);
-	/* ath_desc must be a multiple of DWORDs */
-	if ((sizeof(struct ath_desc) % 4) != 0) {
-		DPRINTF(sc, ATH_DBG_FATAL, "ath_desc not DWORD aligned\n");
-		ASSERT((sizeof(struct ath_desc) % 4) == 0);
-		error = -ENOMEM;
-		goto fail;
-	}
-
-	dd->dd_desc_len = sizeof(struct ath_desc) * nbuf * ndesc;
-
-	/*
-	 * Need additional DMA memory because we can't use
-	 * descriptors that cross the 4K page boundary. Assume
-	 * one skipped descriptor per 4K page.
-	 */
-	if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_4KB_SPLITTRANS)) {
-		u32 ndesc_skipped =
-			ATH_DESC_4KB_BOUND_NUM_SKIPPED(dd->dd_desc_len);
-		u32 dma_len;
-
-		while (ndesc_skipped) {
-			dma_len = ndesc_skipped * sizeof(struct ath_desc);
-			dd->dd_desc_len += dma_len;
-
-			ndesc_skipped = ATH_DESC_4KB_BOUND_NUM_SKIPPED(dma_len);
-		};
-	}
-
-	/* allocate descriptors */
-	dd->dd_desc = dma_alloc_coherent(sc->dev, dd->dd_desc_len,
-					 &dd->dd_desc_paddr, GFP_KERNEL);
-	if (dd->dd_desc == NULL) {
-		error = -ENOMEM;
-		goto fail;
-	}
-	ds = dd->dd_desc;
-	DPRINTF(sc, ATH_DBG_CONFIG, "%s DMA map: %p (%u) -> %llx (%u)\n",
-		name, ds, (u32) dd->dd_desc_len,
-		ito64(dd->dd_desc_paddr), /*XXX*/(u32) dd->dd_desc_len);
-
-	/* allocate buffers */
-	bsize = sizeof(struct ath_buf) * nbuf;
-	bf = kzalloc(bsize, GFP_KERNEL);
-	if (bf == NULL) {
-		error = -ENOMEM;
-		goto fail2;
-	}
-	dd->dd_bufptr = bf;
-
-	for (i = 0; i < nbuf; i++, bf++, ds += ndesc) {
-		bf->bf_desc = ds;
-		bf->bf_daddr = DS2PHYS(dd, ds);
-
-		if (!(sc->sc_ah->caps.hw_caps &
-		      ATH9K_HW_CAP_4KB_SPLITTRANS)) {
-			/*
-			 * Skip descriptor addresses which can cause 4KB
-			 * boundary crossing (addr + length) with a 32 dword
-			 * descriptor fetch.
-			 */
-			while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) {
-				ASSERT((caddr_t) bf->bf_desc <
-				       ((caddr_t) dd->dd_desc +
-					dd->dd_desc_len));
-
-				ds += ndesc;
-				bf->bf_desc = ds;
-				bf->bf_daddr = DS2PHYS(dd, ds);
-			}
-		}
-		list_add_tail(&bf->list, head);
-	}
-	return 0;
-fail2:
-	dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc,
-			  dd->dd_desc_paddr);
-fail:
-	memset(dd, 0, sizeof(*dd));
-	return error;
-#undef ATH_DESC_4KB_BOUND_CHECK
-#undef ATH_DESC_4KB_BOUND_NUM_SKIPPED
-#undef DS2PHYS
-}
-
-void ath_descdma_cleanup(struct ath_softc *sc,
-			 struct ath_descdma *dd,
-			 struct list_head *head)
-{
-	dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc,
-			  dd->dd_desc_paddr);
-
-	INIT_LIST_HEAD(head);
-	kfree(dd->dd_bufptr);
-	memset(dd, 0, sizeof(*dd));
-}
-
-int ath_get_hal_qnum(u16 queue, struct ath_softc *sc)
-{
-	int qnum;
-
-	switch (queue) {
-	case 0:
-		qnum = sc->tx.hwq_map[ATH9K_WME_AC_VO];
-		break;
-	case 1:
-		qnum = sc->tx.hwq_map[ATH9K_WME_AC_VI];
-		break;
-	case 2:
-		qnum = sc->tx.hwq_map[ATH9K_WME_AC_BE];
-		break;
-	case 3:
-		qnum = sc->tx.hwq_map[ATH9K_WME_AC_BK];
-		break;
-	default:
-		qnum = sc->tx.hwq_map[ATH9K_WME_AC_BE];
-		break;
-	}
-
-	return qnum;
-}
-
-int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc)
-{
-	int qnum;
-
-	switch (queue) {
-	case ATH9K_WME_AC_VO:
-		qnum = 0;
-		break;
-	case ATH9K_WME_AC_VI:
-		qnum = 1;
-		break;
-	case ATH9K_WME_AC_BE:
-		qnum = 2;
-		break;
-	case ATH9K_WME_AC_BK:
-		qnum = 3;
-		break;
-	default:
-		qnum = -1;
-		break;
-	}
-
-	return qnum;
-}
-
-/* XXX: Remove me once we don't depend on ath9k_channel for all
- * this redundant data */
-void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw,
-			   struct ath9k_channel *ichan)
-{
-	struct ieee80211_channel *chan = hw->conf.channel;
-	struct ieee80211_conf *conf = &hw->conf;
-
-	ichan->channel = chan->center_freq;
-	ichan->chan = chan;
-
-	if (chan->band == IEEE80211_BAND_2GHZ) {
-		ichan->chanmode = CHANNEL_G;
-		ichan->channelFlags = CHANNEL_2GHZ | CHANNEL_OFDM;
-	} else {
-		ichan->chanmode = CHANNEL_A;
-		ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM;
-	}
-
-	sc->tx_chan_width = ATH9K_HT_MACMODE_20;
-
-	if (conf_is_ht(conf)) {
-		if (conf_is_ht40(conf))
-			sc->tx_chan_width = ATH9K_HT_MACMODE_2040;
-
-		ichan->chanmode = ath_get_extchanmode(sc, chan,
-					    conf->channel_type);
-	}
-}
-
-/**********************/
-/* mac80211 callbacks */
-/**********************/
-
-static int ath9k_start(struct ieee80211_hw *hw)
-{
-	struct ath_wiphy *aphy = hw->priv;
-	struct ath_softc *sc = aphy->sc;
-	struct ieee80211_channel *curchan = hw->conf.channel;
-	struct ath9k_channel *init_channel;
-	int r, pos;
-
-	DPRINTF(sc, ATH_DBG_CONFIG, "Starting driver with "
-		"initial channel: %d MHz\n", curchan->center_freq);
-
-	mutex_lock(&sc->mutex);
-
-	if (ath9k_wiphy_started(sc)) {
-		if (sc->chan_idx == curchan->hw_value) {
-			/*
-			 * Already on the operational channel, the new wiphy
-			 * can be marked active.
-			 */
-			aphy->state = ATH_WIPHY_ACTIVE;
-			ieee80211_wake_queues(hw);
-		} else {
-			/*
-			 * Another wiphy is on another channel, start the new
-			 * wiphy in paused state.
-			 */
-			aphy->state = ATH_WIPHY_PAUSED;
-			ieee80211_stop_queues(hw);
-		}
-		mutex_unlock(&sc->mutex);
-		return 0;
-	}
-	aphy->state = ATH_WIPHY_ACTIVE;
-
-	/* setup initial channel */
-
-	pos = curchan->hw_value;
-
-	sc->chan_idx = pos;
-	init_channel = &sc->sc_ah->channels[pos];
-	ath9k_update_ichannel(sc, hw, init_channel);
-
-	/* Reset SERDES registers */
-	ath9k_hw_configpcipowersave(sc->sc_ah, 0);
-
-	/*
-	 * The basic interface to setting the hardware in a good
-	 * state is ``reset''.  On return the hardware is known to
-	 * be powered up and with interrupts disabled.  This must
-	 * be followed by initialization of the appropriate bits
-	 * and then setup of the interrupt mask.
-	 */
-	spin_lock_bh(&sc->sc_resetlock);
-	r = ath9k_hw_reset(sc->sc_ah, init_channel, false);
-	if (r) {
-		DPRINTF(sc, ATH_DBG_FATAL,
-			"Unable to reset hardware; reset status %u "
-			"(freq %u MHz)\n", r,
-			curchan->center_freq);
-		spin_unlock_bh(&sc->sc_resetlock);
-		goto mutex_unlock;
-	}
-	spin_unlock_bh(&sc->sc_resetlock);
-
-	/*
-	 * This is needed only to setup initial state
-	 * but it's best done after a reset.
-	 */
-	ath_update_txpow(sc);
-
-	/*
-	 * Setup the hardware after reset:
-	 * The receive engine is set going.
-	 * Frame transmit is handled entirely
-	 * in the frame output path; there's nothing to do
-	 * here except setup the interrupt mask.
-	 */
-	if (ath_startrecv(sc) != 0) {
-		DPRINTF(sc, ATH_DBG_FATAL, "Unable to start recv logic\n");
-		r = -EIO;
-		goto mutex_unlock;
-	}
-
-	/* Setup our intr mask. */
-	sc->imask = ATH9K_INT_RX | ATH9K_INT_TX
-		| ATH9K_INT_RXEOL | ATH9K_INT_RXORN
-		| ATH9K_INT_FATAL | ATH9K_INT_GLOBAL;
-
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_GTT)
-		sc->imask |= ATH9K_INT_GTT;
-
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT)
-		sc->imask |= ATH9K_INT_CST;
-
-	ath_cache_conf_rate(sc, &hw->conf);
-
-	sc->sc_flags &= ~SC_OP_INVALID;
-
-	/* Disable BMISS interrupt when we're not associated */
-	sc->imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS);
-	ath9k_hw_set_interrupts(sc->sc_ah, sc->imask);
-
-	ieee80211_wake_queues(hw);
-
-#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
-	r = ath_start_rfkill_poll(sc);
-#endif
-
-mutex_unlock:
-	mutex_unlock(&sc->mutex);
-
-	return r;
-}
-
-static int ath9k_tx(struct ieee80211_hw *hw,
-		    struct sk_buff *skb)
-{
-	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	struct ath_wiphy *aphy = hw->priv;
-	struct ath_softc *sc = aphy->sc;
-	struct ath_tx_control txctl;
-	int hdrlen, padsize;
-
-	if (aphy->state != ATH_WIPHY_ACTIVE && aphy->state != ATH_WIPHY_SCAN) {
-		printk(KERN_DEBUG "ath9k: %s: TX in unexpected wiphy state "
-		       "%d\n", wiphy_name(hw->wiphy), aphy->state);
-		goto exit;
-	}
-
-	memset(&txctl, 0, sizeof(struct ath_tx_control));
-
-	/*
-	 * As a temporary workaround, assign seq# here; this will likely need
-	 * to be cleaned up to work better with Beacon transmission and virtual
-	 * BSSes.
-	 */
-	if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
-		struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-		if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
-			sc->tx.seq_no += 0x10;
-		hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
-		hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no);
-	}
-
-	/* Add the padding after the header if this is not already done */
-	hdrlen = ieee80211_get_hdrlen_from_skb(skb);
-	if (hdrlen & 3) {
-		padsize = hdrlen % 4;
-		if (skb_headroom(skb) < padsize)
-			return -1;
-		skb_push(skb, padsize);
-		memmove(skb->data, skb->data + padsize, hdrlen);
-	}
-
-	/* Check if a tx queue is available */
-
-	txctl.txq = ath_test_get_txq(sc, skb);
-	if (!txctl.txq)
-		goto exit;
-
-	DPRINTF(sc, ATH_DBG_XMIT, "transmitting packet, skb: %p\n", skb);
-
-	if (ath_tx_start(hw, skb, &txctl) != 0) {
-		DPRINTF(sc, ATH_DBG_XMIT, "TX failed\n");
-		goto exit;
-	}
-
-	return 0;
-exit:
-	dev_kfree_skb_any(skb);
-	return 0;
-}
-
-static void ath9k_stop(struct ieee80211_hw *hw)
-{
-	struct ath_wiphy *aphy = hw->priv;
-	struct ath_softc *sc = aphy->sc;
-
-	aphy->state = ATH_WIPHY_INACTIVE;
-
-	if (sc->sc_flags & SC_OP_INVALID) {
-		DPRINTF(sc, ATH_DBG_ANY, "Device not present\n");
-		return;
-	}
-
-	mutex_lock(&sc->mutex);
-
-	ieee80211_stop_queues(hw);
-
-	if (ath9k_wiphy_started(sc)) {
-		mutex_unlock(&sc->mutex);
-		return; /* another wiphy still in use */
-	}
-
-	/* make sure h/w will not generate any interrupt
-	 * before setting the invalid flag. */
-	ath9k_hw_set_interrupts(sc->sc_ah, 0);
-
-	if (!(sc->sc_flags & SC_OP_INVALID)) {
-		ath_drain_all_txq(sc, false);
-		ath_stoprecv(sc);
-		ath9k_hw_phy_disable(sc->sc_ah);
-	} else
-		sc->rx.rxlink = NULL;
-
-#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-		cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll);
-#endif
-	/* disable HAL and put h/w to sleep */
-	ath9k_hw_disable(sc->sc_ah);
-	ath9k_hw_configpcipowersave(sc->sc_ah, 1);
-
-	sc->sc_flags |= SC_OP_INVALID;
-
-	mutex_unlock(&sc->mutex);
-
-	DPRINTF(sc, ATH_DBG_CONFIG, "Driver halt\n");
-}
-
-static int ath9k_add_interface(struct ieee80211_hw *hw,
-			       struct ieee80211_if_init_conf *conf)
-{
-	struct ath_wiphy *aphy = hw->priv;
-	struct ath_softc *sc = aphy->sc;
-	struct ath_vif *avp = (void *)conf->vif->drv_priv;
-	enum nl80211_iftype ic_opmode = NL80211_IFTYPE_UNSPECIFIED;
-	int ret = 0;
-
-	mutex_lock(&sc->mutex);
-
-	if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) &&
-	    sc->nvifs > 0) {
-		ret = -ENOBUFS;
-		goto out;
-	}
-
-	switch (conf->type) {
-	case NL80211_IFTYPE_STATION:
-		ic_opmode = NL80211_IFTYPE_STATION;
-		break;
-	case NL80211_IFTYPE_ADHOC:
-	case NL80211_IFTYPE_AP:
-	case NL80211_IFTYPE_MESH_POINT:
-		if (sc->nbcnvifs >= ATH_BCBUF) {
-			ret = -ENOBUFS;
-			goto out;
-		}
-		ic_opmode = conf->type;
-		break;
-	default:
-		DPRINTF(sc, ATH_DBG_FATAL,
-			"Interface type %d not yet supported\n", conf->type);
-		ret = -EOPNOTSUPP;
-		goto out;
-	}
-
-	DPRINTF(sc, ATH_DBG_CONFIG, "Attach a VIF of type: %d\n", ic_opmode);
-
-	/* Set the VIF opmode */
-	avp->av_opmode = ic_opmode;
-	avp->av_bslot = -1;
-
-	sc->nvifs++;
-
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK)
-		ath9k_set_bssid_mask(hw);
-
-	if (sc->nvifs > 1)
-		goto out; /* skip global settings for secondary vif */
-
-	if (ic_opmode == NL80211_IFTYPE_AP) {
-		ath9k_hw_set_tsfadjust(sc->sc_ah, 1);
-		sc->sc_flags |= SC_OP_TSF_RESET;
-	}
-
-	/* Set the device opmode */
-	sc->sc_ah->opmode = ic_opmode;
-
-	/*
-	 * Enable MIB interrupts when there are hardware phy counters.
-	 * Note we only do this (at the moment) for station mode.
-	 */
-	if ((conf->type == NL80211_IFTYPE_STATION) ||
-	    (conf->type == NL80211_IFTYPE_ADHOC) ||
-	    (conf->type == NL80211_IFTYPE_MESH_POINT)) {
-		if (ath9k_hw_phycounters(sc->sc_ah))
-			sc->imask |= ATH9K_INT_MIB;
-		sc->imask |= ATH9K_INT_TSFOOR;
-	}
-
-	ath9k_hw_set_interrupts(sc->sc_ah, sc->imask);
-
-	if (conf->type == NL80211_IFTYPE_AP) {
-		/* TODO: is this a suitable place to start ANI for AP mode? */
-		/* Start ANI */
-		mod_timer(&sc->ani.timer,
-			  jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL));
-	}
-
-out:
-	mutex_unlock(&sc->mutex);
-	return ret;
-}
-
-static void ath9k_remove_interface(struct ieee80211_hw *hw,
-				   struct ieee80211_if_init_conf *conf)
-{
-	struct ath_wiphy *aphy = hw->priv;
-	struct ath_softc *sc = aphy->sc;
-	struct ath_vif *avp = (void *)conf->vif->drv_priv;
-	int i;
-
-	DPRINTF(sc, ATH_DBG_CONFIG, "Detach Interface\n");
-
-	mutex_lock(&sc->mutex);
-
-	/* Stop ANI */
-	del_timer_sync(&sc->ani.timer);
-
-	/* Reclaim beacon resources */
-	if ((sc->sc_ah->opmode == NL80211_IFTYPE_AP) ||
-	    (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) ||
-	    (sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT)) {
-		ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq);
-		ath_beacon_return(sc, avp);
-	}
-
-	sc->sc_flags &= ~SC_OP_BEACONS;
-
-	for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) {
-		if (sc->beacon.bslot[i] == conf->vif) {
-			printk(KERN_DEBUG "%s: vif had allocated beacon "
-			       "slot\n", __func__);
-			sc->beacon.bslot[i] = NULL;
-			sc->beacon.bslot_aphy[i] = NULL;
-		}
-	}
-
-	sc->nvifs--;
-
-	mutex_unlock(&sc->mutex);
-}
-
-static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
-{
-	struct ath_wiphy *aphy = hw->priv;
-	struct ath_softc *sc = aphy->sc;
-	struct ieee80211_conf *conf = &hw->conf;
-	struct ath_hw *ah = sc->sc_ah;
-
-	mutex_lock(&sc->mutex);
-
-	if (changed & IEEE80211_CONF_CHANGE_PS) {
-		if (conf->flags & IEEE80211_CONF_PS) {
-			if (!(ah->caps.hw_caps &
-			      ATH9K_HW_CAP_AUTOSLEEP)) {
-				if ((sc->imask & ATH9K_INT_TIM_TIMER) == 0) {
-					sc->imask |= ATH9K_INT_TIM_TIMER;
-					ath9k_hw_set_interrupts(sc->sc_ah,
-							sc->imask);
-				}
-				ath9k_hw_setrxabort(sc->sc_ah, 1);
-			}
-			ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP);
-		} else {
-			ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE);
-			if (!(ah->caps.hw_caps &
-			      ATH9K_HW_CAP_AUTOSLEEP)) {
-				ath9k_hw_setrxabort(sc->sc_ah, 0);
-				sc->sc_flags &= ~SC_OP_WAIT_FOR_BEACON;
-				if (sc->imask & ATH9K_INT_TIM_TIMER) {
-					sc->imask &= ~ATH9K_INT_TIM_TIMER;
-					ath9k_hw_set_interrupts(sc->sc_ah,
-							sc->imask);
-				}
-			}
-		}
-	}
-
-	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
-		struct ieee80211_channel *curchan = hw->conf.channel;
-		int pos = curchan->hw_value;
-
-		aphy->chan_idx = pos;
-		aphy->chan_is_ht = conf_is_ht(conf);
-
-		if (aphy->state == ATH_WIPHY_SCAN ||
-		    aphy->state == ATH_WIPHY_ACTIVE)
-			ath9k_wiphy_pause_all_forced(sc, aphy);
-		else {
-			/*
-			 * Do not change operational channel based on a paused
-			 * wiphy changes.
-			 */
-			goto skip_chan_change;
-		}
-
-		DPRINTF(sc, ATH_DBG_CONFIG, "Set channel: %d MHz\n",
-			curchan->center_freq);
-
-		/* XXX: remove me eventualy */
-		ath9k_update_ichannel(sc, hw, &sc->sc_ah->channels[pos]);
-
-		ath_update_chainmask(sc, conf_is_ht(conf));
-
-		if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) {
-			DPRINTF(sc, ATH_DBG_FATAL, "Unable to set channel\n");
-			mutex_unlock(&sc->mutex);
-			return -EINVAL;
-		}
-	}
-
-skip_chan_change:
-	if (changed & IEEE80211_CONF_CHANGE_POWER)
-		sc->config.txpowlimit = 2 * conf->power_level;
-
-	/*
-	 * The HW TSF has to be reset when the beacon interval changes.
-	 * We set the flag here, and ath_beacon_config_ap() would take this
-	 * into account when it gets called through the subsequent
-	 * config_interface() call - with IFCC_BEACON in the changed field.
-	 */
-
-	if (changed & IEEE80211_CONF_CHANGE_BEACON_INTERVAL)
-		sc->sc_flags |= SC_OP_TSF_RESET;
-
-	mutex_unlock(&sc->mutex);
-
-	return 0;
-}
-
-static int ath9k_config_interface(struct ieee80211_hw *hw,
-				  struct ieee80211_vif *vif,
-				  struct ieee80211_if_conf *conf)
-{
-	struct ath_wiphy *aphy = hw->priv;
-	struct ath_softc *sc = aphy->sc;
-	struct ath_hw *ah = sc->sc_ah;
-	struct ath_vif *avp = (void *)vif->drv_priv;
-	u32 rfilt = 0;
-	int error, i;
-
-	mutex_lock(&sc->mutex);
-
-	/* TODO: Need to decide which hw opmode to use for multi-interface
-	 * cases */
-	if (vif->type == NL80211_IFTYPE_AP &&
-	    ah->opmode != NL80211_IFTYPE_AP) {
-		ah->opmode = NL80211_IFTYPE_STATION;
-		ath9k_hw_setopmode(ah);
-		memcpy(sc->curbssid, sc->sc_ah->macaddr, ETH_ALEN);
-		sc->curaid = 0;
-		ath9k_hw_write_associd(sc);
-		/* Request full reset to get hw opmode changed properly */
-		sc->sc_flags |= SC_OP_FULL_RESET;
-	}
-
-	if ((conf->changed & IEEE80211_IFCC_BSSID) &&
-	    !is_zero_ether_addr(conf->bssid)) {
-		switch (vif->type) {
-		case NL80211_IFTYPE_STATION:
-		case NL80211_IFTYPE_ADHOC:
-		case NL80211_IFTYPE_MESH_POINT:
-			/* Set BSSID */
-			memcpy(sc->curbssid, conf->bssid, ETH_ALEN);
-			memcpy(avp->bssid, conf->bssid, ETH_ALEN);
-			sc->curaid = 0;
-			ath9k_hw_write_associd(sc);
-
-			/* Set aggregation protection mode parameters */
-			sc->config.ath_aggr_prot = 0;
-
-			DPRINTF(sc, ATH_DBG_CONFIG,
-				"RX filter 0x%x bssid %pM aid 0x%x\n",
-				rfilt, sc->curbssid, sc->curaid);
-
-			/* need to reconfigure the beacon */
-			sc->sc_flags &= ~SC_OP_BEACONS ;
-
-			break;
-		default:
-			break;
-		}
-	}
-
-	if ((vif->type == NL80211_IFTYPE_ADHOC) ||
-	    (vif->type == NL80211_IFTYPE_AP) ||
-	    (vif->type == NL80211_IFTYPE_MESH_POINT)) {
-		if ((conf->changed & IEEE80211_IFCC_BEACON) ||
-		    (conf->changed & IEEE80211_IFCC_BEACON_ENABLED &&
-		     conf->enable_beacon)) {
-			/*
-			 * Allocate and setup the beacon frame.
-			 *
-			 * Stop any previous beacon DMA.  This may be
-			 * necessary, for example, when an ibss merge
-			 * causes reconfiguration; we may be called
-			 * with beacon transmission active.
-			 */
-			ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq);
-
-			error = ath_beacon_alloc(aphy, vif);
-			if (error != 0) {
-				mutex_unlock(&sc->mutex);
-				return error;
-			}
-
-			ath_beacon_config(sc, vif);
-		}
-	}
-
-	/* Check for WLAN_CAPABILITY_PRIVACY ? */
-	if ((avp->av_opmode != NL80211_IFTYPE_STATION)) {
-		for (i = 0; i < IEEE80211_WEP_NKID; i++)
-			if (ath9k_hw_keyisvalid(sc->sc_ah, (u16)i))
-				ath9k_hw_keysetmac(sc->sc_ah,
-						   (u16)i,
-						   sc->curbssid);
-	}
-
-	/* Only legacy IBSS for now */
-	if (vif->type == NL80211_IFTYPE_ADHOC)
-		ath_update_chainmask(sc, 0);
-
-	mutex_unlock(&sc->mutex);
-
-	return 0;
-}
-
-#define SUPPORTED_FILTERS			\
-	(FIF_PROMISC_IN_BSS |			\
-	FIF_ALLMULTI |				\
-	FIF_CONTROL |				\
-	FIF_OTHER_BSS |				\
-	FIF_BCN_PRBRESP_PROMISC |		\
-	FIF_FCSFAIL)
-
-/* FIXME: sc->sc_full_reset ? */
-static void ath9k_configure_filter(struct ieee80211_hw *hw,
-				   unsigned int changed_flags,
-				   unsigned int *total_flags,
-				   int mc_count,
-				   struct dev_mc_list *mclist)
-{
-	struct ath_wiphy *aphy = hw->priv;
-	struct ath_softc *sc = aphy->sc;
-	u32 rfilt;
-
-	changed_flags &= SUPPORTED_FILTERS;
-	*total_flags &= SUPPORTED_FILTERS;
-
-	sc->rx.rxfilter = *total_flags;
-	rfilt = ath_calcrxfilter(sc);
-	ath9k_hw_setrxfilter(sc->sc_ah, rfilt);
-
-	DPRINTF(sc, ATH_DBG_CONFIG, "Set HW RX filter: 0x%x\n", sc->rx.rxfilter);
-}
-
-static void ath9k_sta_notify(struct ieee80211_hw *hw,
-			     struct ieee80211_vif *vif,
-			     enum sta_notify_cmd cmd,
-			     struct ieee80211_sta *sta)
-{
-	struct ath_wiphy *aphy = hw->priv;
-	struct ath_softc *sc = aphy->sc;
-
-	switch (cmd) {
-	case STA_NOTIFY_ADD:
-		ath_node_attach(sc, sta);
-		break;
-	case STA_NOTIFY_REMOVE:
-		ath_node_detach(sc, sta);
-		break;
-	default:
-		break;
-	}
-}
-
-static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue,
-			 const struct ieee80211_tx_queue_params *params)
-{
-	struct ath_wiphy *aphy = hw->priv;
-	struct ath_softc *sc = aphy->sc;
-	struct ath9k_tx_queue_info qi;
-	int ret = 0, qnum;
-
-	if (queue >= WME_NUM_AC)
-		return 0;
-
-	mutex_lock(&sc->mutex);
-
-	memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
-
-	qi.tqi_aifs = params->aifs;
-	qi.tqi_cwmin = params->cw_min;
-	qi.tqi_cwmax = params->cw_max;
-	qi.tqi_burstTime = params->txop;
-	qnum = ath_get_hal_qnum(queue, sc);
-
-	DPRINTF(sc, ATH_DBG_CONFIG,
-		"Configure tx [queue/halq] [%d/%d],  "
-		"aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
-		queue, qnum, params->aifs, params->cw_min,
-		params->cw_max, params->txop);
-
-	ret = ath_txq_update(sc, qnum, &qi);
-	if (ret)
-		DPRINTF(sc, ATH_DBG_FATAL, "TXQ Update failed\n");
-
-	mutex_unlock(&sc->mutex);
-
-	return ret;
-}
-
-static int ath9k_set_key(struct ieee80211_hw *hw,
-			 enum set_key_cmd cmd,
-			 struct ieee80211_vif *vif,
-			 struct ieee80211_sta *sta,
-			 struct ieee80211_key_conf *key)
-{
-	struct ath_wiphy *aphy = hw->priv;
-	struct ath_softc *sc = aphy->sc;
-	int ret = 0;
-
-	if (modparam_nohwcrypt)
-		return -ENOSPC;
-
-	mutex_lock(&sc->mutex);
-	ath9k_ps_wakeup(sc);
-	DPRINTF(sc, ATH_DBG_CONFIG, "Set HW Key\n");
-
-	switch (cmd) {
-	case SET_KEY:
-		ret = ath_key_config(sc, vif, sta, key);
-		if (ret >= 0) {
-			key->hw_key_idx = ret;
-			/* push IV and Michael MIC generation to stack */
-			key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
-			if (key->alg == ALG_TKIP)
-				key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
-			if (sc->sc_ah->sw_mgmt_crypto && key->alg == ALG_CCMP)
-				key->flags |= IEEE80211_KEY_FLAG_SW_MGMT;
-			ret = 0;
-		}
-		break;
-	case DISABLE_KEY:
-		ath_key_delete(sc, key);
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-	ath9k_ps_restore(sc);
-	mutex_unlock(&sc->mutex);
-
-	return ret;
-}
-
-static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
-				   struct ieee80211_vif *vif,
-				   struct ieee80211_bss_conf *bss_conf,
-				   u32 changed)
-{
-	struct ath_wiphy *aphy = hw->priv;
-	struct ath_softc *sc = aphy->sc;
-
-	mutex_lock(&sc->mutex);
-
-	if (changed & BSS_CHANGED_ERP_PREAMBLE) {
-		DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed PREAMBLE %d\n",
-			bss_conf->use_short_preamble);
-		if (bss_conf->use_short_preamble)
-			sc->sc_flags |= SC_OP_PREAMBLE_SHORT;
-		else
-			sc->sc_flags &= ~SC_OP_PREAMBLE_SHORT;
-	}
-
-	if (changed & BSS_CHANGED_ERP_CTS_PROT) {
-		DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed CTS PROT %d\n",
-			bss_conf->use_cts_prot);
-		if (bss_conf->use_cts_prot &&
-		    hw->conf.channel->band != IEEE80211_BAND_5GHZ)
-			sc->sc_flags |= SC_OP_PROTECT_ENABLE;
-		else
-			sc->sc_flags &= ~SC_OP_PROTECT_ENABLE;
-	}
-
-	if (changed & BSS_CHANGED_ASSOC) {
-		DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n",
-			bss_conf->assoc);
-		ath9k_bss_assoc_info(sc, vif, bss_conf);
-	}
-
-	mutex_unlock(&sc->mutex);
-}
-
-static u64 ath9k_get_tsf(struct ieee80211_hw *hw)
-{
-	u64 tsf;
-	struct ath_wiphy *aphy = hw->priv;
-	struct ath_softc *sc = aphy->sc;
-
-	mutex_lock(&sc->mutex);
-	tsf = ath9k_hw_gettsf64(sc->sc_ah);
-	mutex_unlock(&sc->mutex);
-
-	return tsf;
-}
-
-static void ath9k_set_tsf(struct ieee80211_hw *hw, u64 tsf)
-{
-	struct ath_wiphy *aphy = hw->priv;
-	struct ath_softc *sc = aphy->sc;
-
-	mutex_lock(&sc->mutex);
-	ath9k_hw_settsf64(sc->sc_ah, tsf);
-	mutex_unlock(&sc->mutex);
-}
-
-static void ath9k_reset_tsf(struct ieee80211_hw *hw)
-{
-	struct ath_wiphy *aphy = hw->priv;
-	struct ath_softc *sc = aphy->sc;
-
-	mutex_lock(&sc->mutex);
-	ath9k_hw_reset_tsf(sc->sc_ah);
-	mutex_unlock(&sc->mutex);
-}
-
-static int ath9k_ampdu_action(struct ieee80211_hw *hw,
-			      enum ieee80211_ampdu_mlme_action action,
-			      struct ieee80211_sta *sta,
-			      u16 tid, u16 *ssn)
-{
-	struct ath_wiphy *aphy = hw->priv;
-	struct ath_softc *sc = aphy->sc;
-	int ret = 0;
-
-	switch (action) {
-	case IEEE80211_AMPDU_RX_START:
-		if (!(sc->sc_flags & SC_OP_RXAGGR))
-			ret = -ENOTSUPP;
-		break;
-	case IEEE80211_AMPDU_RX_STOP:
-		break;
-	case IEEE80211_AMPDU_TX_START:
-		ret = ath_tx_aggr_start(sc, sta, tid, ssn);
-		if (ret < 0)
-			DPRINTF(sc, ATH_DBG_FATAL,
-				"Unable to start TX aggregation\n");
-		else
-			ieee80211_start_tx_ba_cb_irqsafe(hw, sta->addr, tid);
-		break;
-	case IEEE80211_AMPDU_TX_STOP:
-		ret = ath_tx_aggr_stop(sc, sta, tid);
-		if (ret < 0)
-			DPRINTF(sc, ATH_DBG_FATAL,
-				"Unable to stop TX aggregation\n");
-
-		ieee80211_stop_tx_ba_cb_irqsafe(hw, sta->addr, tid);
-		break;
-	case IEEE80211_AMPDU_TX_OPERATIONAL:
-		ath_tx_aggr_resume(sc, sta, tid);
-		break;
-	default:
-		DPRINTF(sc, ATH_DBG_FATAL, "Unknown AMPDU action\n");
-	}
-
-	return ret;
-}
-
-static void ath9k_sw_scan_start(struct ieee80211_hw *hw)
-{
-	struct ath_wiphy *aphy = hw->priv;
-	struct ath_softc *sc = aphy->sc;
-
-	if (ath9k_wiphy_scanning(sc)) {
-		printk(KERN_DEBUG "ath9k: Two wiphys trying to scan at the "
-		       "same time\n");
-		/*
-		 * Do not allow the concurrent scanning state for now. This
-		 * could be improved with scanning control moved into ath9k.
-		 */
-		return;
-	}
-
-	aphy->state = ATH_WIPHY_SCAN;
-	ath9k_wiphy_pause_all_forced(sc, aphy);
-
-	mutex_lock(&sc->mutex);
-	sc->sc_flags |= SC_OP_SCANNING;
-	mutex_unlock(&sc->mutex);
-}
-
-static void ath9k_sw_scan_complete(struct ieee80211_hw *hw)
-{
-	struct ath_wiphy *aphy = hw->priv;
-	struct ath_softc *sc = aphy->sc;
-
-	mutex_lock(&sc->mutex);
-	aphy->state = ATH_WIPHY_ACTIVE;
-	sc->sc_flags &= ~SC_OP_SCANNING;
-	mutex_unlock(&sc->mutex);
-}
-
-struct ieee80211_ops ath9k_ops = {
-	.tx 		    = ath9k_tx,
-	.start 		    = ath9k_start,
-	.stop 		    = ath9k_stop,
-	.add_interface 	    = ath9k_add_interface,
-	.remove_interface   = ath9k_remove_interface,
-	.config 	    = ath9k_config,
-	.config_interface   = ath9k_config_interface,
-	.configure_filter   = ath9k_configure_filter,
-	.sta_notify         = ath9k_sta_notify,
-	.conf_tx 	    = ath9k_conf_tx,
-	.bss_info_changed   = ath9k_bss_info_changed,
-	.set_key            = ath9k_set_key,
-	.get_tsf 	    = ath9k_get_tsf,
-	.set_tsf 	    = ath9k_set_tsf,
-	.reset_tsf 	    = ath9k_reset_tsf,
-	.ampdu_action       = ath9k_ampdu_action,
-	.sw_scan_start      = ath9k_sw_scan_start,
-	.sw_scan_complete   = ath9k_sw_scan_complete,
-};
-
-static struct {
-	u32 version;
-	const char * name;
-} ath_mac_bb_names[] = {
-	{ AR_SREV_VERSION_5416_PCI,	"5416" },
-	{ AR_SREV_VERSION_5416_PCIE,	"5418" },
-	{ AR_SREV_VERSION_9100,		"9100" },
-	{ AR_SREV_VERSION_9160,		"9160" },
-	{ AR_SREV_VERSION_9280,		"9280" },
-	{ AR_SREV_VERSION_9285,		"9285" }
-};
-
-static struct {
-	u16 version;
-	const char * name;
-} ath_rf_names[] = {
-	{ 0,				"5133" },
-	{ AR_RAD5133_SREV_MAJOR,	"5133" },
-	{ AR_RAD5122_SREV_MAJOR,	"5122" },
-	{ AR_RAD2133_SREV_MAJOR,	"2133" },
-	{ AR_RAD2122_SREV_MAJOR,	"2122" }
-};
-
-/*
- * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
- */
-const char *
-ath_mac_bb_name(u32 mac_bb_version)
-{
-	int i;
-
-	for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
-		if (ath_mac_bb_names[i].version == mac_bb_version) {
-			return ath_mac_bb_names[i].name;
-		}
-	}
-
-	return "????";
-}
-
-/*
- * Return the RF name. "????" is returned if the RF is unknown.
- */
-const char *
-ath_rf_name(u16 rf_version)
-{
-	int i;
-
-	for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
-		if (ath_rf_names[i].version == rf_version) {
-			return ath_rf_names[i].name;
-		}
-	}
-
-	return "????";
-}
-
-static int __init ath9k_init(void)
-{
-	int error;
-
-	/* Register rate control algorithm */
-	error = ath_rate_control_register();
-	if (error != 0) {
-		printk(KERN_ERR
-			"ath9k: Unable to register rate control "
-			"algorithm: %d\n",
-			error);
-		goto err_out;
-	}
-
-	error = ath9k_debug_create_root();
-	if (error) {
-		printk(KERN_ERR
-			"ath9k: Unable to create debugfs root: %d\n",
-			error);
-		goto err_rate_unregister;
-	}
-
-	error = ath_pci_init();
-	if (error < 0) {
-		printk(KERN_ERR
-			"ath9k: No PCI devices found, driver not installed.\n");
-		error = -ENODEV;
-		goto err_remove_root;
-	}
-
-	error = ath_ahb_init();
-	if (error < 0) {
-		error = -ENODEV;
-		goto err_pci_exit;
-	}
-
-	return 0;
-
- err_pci_exit:
-	ath_pci_exit();
-
- err_remove_root:
-	ath9k_debug_remove_root();
- err_rate_unregister:
-	ath_rate_control_unregister();
- err_out:
-	return error;
-}
-module_init(ath9k_init);
-
-static void __exit ath9k_exit(void)
-{
-	ath_ahb_exit();
-	ath_pci_exit();
-	ath9k_debug_remove_root();
-	ath_rate_control_unregister();
-	printk(KERN_INFO "%s: Driver unloaded\n", dev_info);
-}
-module_exit(ath9k_exit);