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

Conflicts:
	drivers/net/wireless/ath/ar9170/main.c
	drivers/net/wireless/ath/ar9170/phy.c
	drivers/net/wireless/zd1211rw/zd_rf_rf2959.c

1 files changed, 0 insertions, 2190 deletions

diff --git a/drivers/net/wireless/ath/ar9170/main.c b/drivers/net/wireless/ath/ar9170/main.c
deleted file mode 100644
index ccc2edaaeda..00000000000
--- a/drivers/net/wireless/ath/ar9170/main.c
+++ /dev/null
@@ -1,2190 +0,0 @@
-/*
- * Atheros AR9170 driver
- *
- * mac80211 interaction code
- *
- * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
- * Copyright 2009, Christian Lamparter <chunkeey@web.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; see the file COPYING.  If not, see
- * http://www.gnu.org/licenses/.
- *
- * This file incorporates work covered by the following copyright and
- * permission notice:
- *    Copyright (c) 2007-2008 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/init.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/etherdevice.h>
-#include <net/mac80211.h>
-#include "ar9170.h"
-#include "hw.h"
-#include "cmd.h"
-
-static int modparam_nohwcrypt;
-module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
-MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
-
-#define RATE(_bitrate, _hw_rate, _txpidx, _flags) {	\
-	.bitrate	= (_bitrate),			\
-	.flags		= (_flags),			\
-	.hw_value	= (_hw_rate) | (_txpidx) << 4,	\
-}
-
-static struct ieee80211_rate __ar9170_ratetable[] = {
-	RATE(10, 0, 0, 0),
-	RATE(20, 1, 1, IEEE80211_RATE_SHORT_PREAMBLE),
-	RATE(55, 2, 2, IEEE80211_RATE_SHORT_PREAMBLE),
-	RATE(110, 3, 3, IEEE80211_RATE_SHORT_PREAMBLE),
-	RATE(60, 0xb, 0, 0),
-	RATE(90, 0xf, 0, 0),
-	RATE(120, 0xa, 0, 0),
-	RATE(180, 0xe, 0, 0),
-	RATE(240, 0x9, 0, 0),
-	RATE(360, 0xd, 1, 0),
-	RATE(480, 0x8, 2, 0),
-	RATE(540, 0xc, 3, 0),
-};
-#undef RATE
-
-#define ar9170_g_ratetable	(__ar9170_ratetable + 0)
-#define ar9170_g_ratetable_size	12
-#define ar9170_a_ratetable	(__ar9170_ratetable + 4)
-#define ar9170_a_ratetable_size	8
-
-/*
- * NB: The hw_value is used as an index into the ar9170_phy_freq_params
- *     array in phy.c so that we don't have to do frequency lookups!
- */
-#define CHAN(_freq, _idx) {		\
-	.center_freq	= (_freq),	\
-	.hw_value	= (_idx),	\
-	.max_power	= 18, /* XXX */	\
-}
-
-static struct ieee80211_channel ar9170_2ghz_chantable[] = {
-	CHAN(2412,  0),
-	CHAN(2417,  1),
-	CHAN(2422,  2),
-	CHAN(2427,  3),
-	CHAN(2432,  4),
-	CHAN(2437,  5),
-	CHAN(2442,  6),
-	CHAN(2447,  7),
-	CHAN(2452,  8),
-	CHAN(2457,  9),
-	CHAN(2462, 10),
-	CHAN(2467, 11),
-	CHAN(2472, 12),
-	CHAN(2484, 13),
-};
-
-static struct ieee80211_channel ar9170_5ghz_chantable[] = {
-	CHAN(4920, 14),
-	CHAN(4940, 15),
-	CHAN(4960, 16),
-	CHAN(4980, 17),
-	CHAN(5040, 18),
-	CHAN(5060, 19),
-	CHAN(5080, 20),
-	CHAN(5180, 21),
-	CHAN(5200, 22),
-	CHAN(5220, 23),
-	CHAN(5240, 24),
-	CHAN(5260, 25),
-	CHAN(5280, 26),
-	CHAN(5300, 27),
-	CHAN(5320, 28),
-	CHAN(5500, 29),
-	CHAN(5520, 30),
-	CHAN(5540, 31),
-	CHAN(5560, 32),
-	CHAN(5580, 33),
-	CHAN(5600, 34),
-	CHAN(5620, 35),
-	CHAN(5640, 36),
-	CHAN(5660, 37),
-	CHAN(5680, 38),
-	CHAN(5700, 39),
-	CHAN(5745, 40),
-	CHAN(5765, 41),
-	CHAN(5785, 42),
-	CHAN(5805, 43),
-	CHAN(5825, 44),
-	CHAN(5170, 45),
-	CHAN(5190, 46),
-	CHAN(5210, 47),
-	CHAN(5230, 48),
-};
-#undef CHAN
-
-#define AR9170_HT_CAP							\
-{									\
-	.ht_supported	= true,						\
-	.cap		= IEEE80211_HT_CAP_MAX_AMSDU |			\
-			  IEEE80211_HT_CAP_SUP_WIDTH_20_40 |		\
-			  IEEE80211_HT_CAP_SGI_40 |			\
-			  IEEE80211_HT_CAP_GRN_FLD |			\
-			  IEEE80211_HT_CAP_DSSSCCK40 |			\
-			  IEEE80211_HT_CAP_SM_PS,			\
-	.ampdu_factor	= 3,						\
-	.ampdu_density	= 6,						\
-	.mcs		= {						\
-		.rx_mask = { 0xff, 0xff, 0, 0, 0x1, 0, 0, 0, 0, 0, },	\
-		.rx_highest = cpu_to_le16(300),				\
-		.tx_params = IEEE80211_HT_MCS_TX_DEFINED,		\
-	},								\
-}
-
-static struct ieee80211_supported_band ar9170_band_2GHz = {
-	.channels	= ar9170_2ghz_chantable,
-	.n_channels	= ARRAY_SIZE(ar9170_2ghz_chantable),
-	.bitrates	= ar9170_g_ratetable,
-	.n_bitrates	= ar9170_g_ratetable_size,
-	.ht_cap		= AR9170_HT_CAP,
-};
-
-static struct ieee80211_supported_band ar9170_band_5GHz = {
-	.channels	= ar9170_5ghz_chantable,
-	.n_channels	= ARRAY_SIZE(ar9170_5ghz_chantable),
-	.bitrates	= ar9170_a_ratetable,
-	.n_bitrates	= ar9170_a_ratetable_size,
-	.ht_cap		= AR9170_HT_CAP,
-};
-
-static void ar9170_tx(struct ar9170 *ar);
-
-static inline u16 ar9170_get_seq_h(struct ieee80211_hdr *hdr)
-{
-	return le16_to_cpu(hdr->seq_ctrl) >> 4;
-}
-
-static inline u16 ar9170_get_seq(struct sk_buff *skb)
-{
-	struct ar9170_tx_control *txc = (void *) skb->data;
-	return ar9170_get_seq_h((void *) txc->frame_data);
-}
-
-#ifdef AR9170_QUEUE_DEBUG
-static void ar9170_print_txheader(struct ar9170 *ar, struct sk_buff *skb)
-{
-	struct ar9170_tx_control *txc = (void *) skb->data;
-	struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb);
-	struct ar9170_tx_info *arinfo = (void *) txinfo->rate_driver_data;
-	struct ieee80211_hdr *hdr = (void *) txc->frame_data;
-
-	wiphy_debug(ar->hw->wiphy,
-		    "=> FRAME [skb:%p, q:%d, DA:[%pM] s:%d "
-		    "mac_ctrl:%04x, phy_ctrl:%08x, timeout:[%d ms]]\n",
-		    skb, skb_get_queue_mapping(skb),
-		    ieee80211_get_DA(hdr), ar9170_get_seq_h(hdr),
-		    le16_to_cpu(txc->mac_control), le32_to_cpu(txc->phy_control),
-		    jiffies_to_msecs(arinfo->timeout - jiffies));
-}
-
-static void __ar9170_dump_txqueue(struct ar9170 *ar,
-				struct sk_buff_head *queue)
-{
-	struct sk_buff *skb;
-	int i = 0;
-
-	printk(KERN_DEBUG "---[ cut here ]---\n");
-	wiphy_debug(ar->hw->wiphy, "%d entries in queue.\n",
-		    skb_queue_len(queue));
-
-	skb_queue_walk(queue, skb) {
-		printk(KERN_DEBUG "index:%d =>\n", i++);
-		ar9170_print_txheader(ar, skb);
-	}
-	if (i != skb_queue_len(queue))
-		printk(KERN_DEBUG "WARNING: queue frame counter "
-		       "mismatch %d != %d\n", skb_queue_len(queue), i);
-	printk(KERN_DEBUG "---[ end ]---\n");
-}
-#endif /* AR9170_QUEUE_DEBUG */
-
-#ifdef AR9170_QUEUE_DEBUG
-static void ar9170_dump_txqueue(struct ar9170 *ar,
-				struct sk_buff_head *queue)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&queue->lock, flags);
-	__ar9170_dump_txqueue(ar, queue);
-	spin_unlock_irqrestore(&queue->lock, flags);
-}
-#endif /* AR9170_QUEUE_DEBUG */
-
-#ifdef AR9170_QUEUE_STOP_DEBUG
-static void __ar9170_dump_txstats(struct ar9170 *ar)
-{
-	int i;
-
-	wiphy_debug(ar->hw->wiphy, "QoS queue stats\n");
-
-	for (i = 0; i < __AR9170_NUM_TXQ; i++)
-		wiphy_debug(ar->hw->wiphy,
-			    "queue:%d limit:%d len:%d waitack:%d stopped:%d\n",
-			    i, ar->tx_stats[i].limit, ar->tx_stats[i].len,
-			    skb_queue_len(&ar->tx_status[i]),
-			    ieee80211_queue_stopped(ar->hw, i));
-}
-#endif /* AR9170_QUEUE_STOP_DEBUG */
-
-/* caller must guarantee exclusive access for _bin_ queue. */
-static void ar9170_recycle_expired(struct ar9170 *ar,
-				   struct sk_buff_head *queue,
-				   struct sk_buff_head *bin)
-{
-	struct sk_buff *skb, *old = NULL;
-	unsigned long flags;
-
-	spin_lock_irqsave(&queue->lock, flags);
-	while ((skb = skb_peek(queue))) {
-		struct ieee80211_tx_info *txinfo;
-		struct ar9170_tx_info *arinfo;
-
-		txinfo = IEEE80211_SKB_CB(skb);
-		arinfo = (void *) txinfo->rate_driver_data;
-
-		if (time_is_before_jiffies(arinfo->timeout)) {
-#ifdef AR9170_QUEUE_DEBUG
-			wiphy_debug(ar->hw->wiphy,
-				    "[%ld > %ld] frame expired => recycle\n",
-				    jiffies, arinfo->timeout);
-			ar9170_print_txheader(ar, skb);
-#endif /* AR9170_QUEUE_DEBUG */
-			__skb_unlink(skb, queue);
-			__skb_queue_tail(bin, skb);
-		} else {
-			break;
-		}
-
-		if (unlikely(old == skb)) {
-			/* bail out - queue is shot. */
-
-			WARN_ON(1);
-			break;
-		}
-		old = skb;
-	}
-	spin_unlock_irqrestore(&queue->lock, flags);
-}
-
-static void ar9170_tx_status(struct ar9170 *ar, struct sk_buff *skb,
-				    u16 tx_status)
-{
-	struct ieee80211_tx_info *txinfo;
-	unsigned int retries = 0;
-
-	txinfo = IEEE80211_SKB_CB(skb);
-	ieee80211_tx_info_clear_status(txinfo);
-
-	switch (tx_status) {
-	case AR9170_TX_STATUS_RETRY:
-		retries = 2;
-	case AR9170_TX_STATUS_COMPLETE:
-		txinfo->flags |= IEEE80211_TX_STAT_ACK;
-		break;
-
-	case AR9170_TX_STATUS_FAILED:
-		retries = ar->hw->conf.long_frame_max_tx_count;
-		break;
-
-	default:
-		wiphy_err(ar->hw->wiphy,
-			  "invalid tx_status response (%x)\n", tx_status);
-		break;
-	}
-
-	txinfo->status.rates[0].count = retries + 1;
-	skb_pull(skb, sizeof(struct ar9170_tx_control));
-	ieee80211_tx_status_irqsafe(ar->hw, skb);
-}
-
-void ar9170_tx_callback(struct ar9170 *ar, struct sk_buff *skb)
-{
-	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	struct ar9170_tx_info *arinfo = (void *) info->rate_driver_data;
-	unsigned int queue = skb_get_queue_mapping(skb);
-	unsigned long flags;
-
-	spin_lock_irqsave(&ar->tx_stats_lock, flags);
-	ar->tx_stats[queue].len--;
-
-	if (ar->tx_stats[queue].len < AR9170_NUM_TX_LIMIT_SOFT) {
-#ifdef AR9170_QUEUE_STOP_DEBUG
-		wiphy_debug(ar->hw->wiphy, "wake queue %d\n", queue);
-		__ar9170_dump_txstats(ar);
-#endif /* AR9170_QUEUE_STOP_DEBUG */
-		ieee80211_wake_queue(ar->hw, queue);
-	}
-	spin_unlock_irqrestore(&ar->tx_stats_lock, flags);
-
-	if (info->flags & IEEE80211_TX_CTL_NO_ACK) {
-		ar9170_tx_status(ar, skb, AR9170_TX_STATUS_FAILED);
-	} else {
-		arinfo->timeout = jiffies +
-			  msecs_to_jiffies(AR9170_TX_TIMEOUT);
-
-		skb_queue_tail(&ar->tx_status[queue], skb);
-	}
-
-	if (!ar->tx_stats[queue].len &&
-	    !skb_queue_empty(&ar->tx_pending[queue])) {
-		ar9170_tx(ar);
-	}
-}
-
-static struct sk_buff *ar9170_get_queued_skb(struct ar9170 *ar,
-					     const u8 *mac,
-					     struct sk_buff_head *queue,
-					     const u32 rate)
-{
-	unsigned long flags;
-	struct sk_buff *skb;
-
-	/*
-	 * Unfortunately, the firmware does not tell to which (queued) frame
-	 * this transmission status report belongs to.
-	 *
-	 * So we have to make risky guesses - with the scarce information
-	 * the firmware provided (-> destination MAC, and phy_control) -
-	 * and hope that we picked the right one...
-	 */
-
-	spin_lock_irqsave(&queue->lock, flags);
-	skb_queue_walk(queue, skb) {
-		struct ar9170_tx_control *txc = (void *) skb->data;
-		struct ieee80211_hdr *hdr = (void *) txc->frame_data;
-		u32 r;
-
-		if (mac && compare_ether_addr(ieee80211_get_DA(hdr), mac)) {
-#ifdef AR9170_QUEUE_DEBUG
-			wiphy_debug(ar->hw->wiphy,
-				    "skip frame => DA %pM != %pM\n",
-				    mac, ieee80211_get_DA(hdr));
-			ar9170_print_txheader(ar, skb);
-#endif /* AR9170_QUEUE_DEBUG */
-			continue;
-		}
-
-		r = (le32_to_cpu(txc->phy_control) & AR9170_TX_PHY_MCS_MASK) >>
-		    AR9170_TX_PHY_MCS_SHIFT;
-
-		if ((rate != AR9170_TX_INVALID_RATE) && (r != rate)) {
-#ifdef AR9170_QUEUE_DEBUG
-			wiphy_debug(ar->hw->wiphy,
-				    "skip frame => rate %d != %d\n", rate, r);
-			ar9170_print_txheader(ar, skb);
-#endif /* AR9170_QUEUE_DEBUG */
-			continue;
-		}
-
-		__skb_unlink(skb, queue);
-		spin_unlock_irqrestore(&queue->lock, flags);
-		return skb;
-	}
-
-#ifdef AR9170_QUEUE_DEBUG
-	wiphy_err(ar->hw->wiphy,
-		  "ESS:[%pM] does not have any outstanding frames in queue.\n",
-		  mac);
-	__ar9170_dump_txqueue(ar, queue);
-#endif /* AR9170_QUEUE_DEBUG */
-	spin_unlock_irqrestore(&queue->lock, flags);
-
-	return NULL;
-}
-
-/*
- * This worker tries to keeps an maintain tx_status queues.
- * So we can guarantee that incoming tx_status reports are
- * actually for a pending frame.
- */
-
-static void ar9170_tx_janitor(struct work_struct *work)
-{
-	struct ar9170 *ar = container_of(work, struct ar9170,
-					 tx_janitor.work);
-	struct sk_buff_head waste;
-	unsigned int i;
-	bool resched = false;
-
-	if (unlikely(!IS_STARTED(ar)))
-		return ;
-
-	skb_queue_head_init(&waste);
-
-	for (i = 0; i < __AR9170_NUM_TXQ; i++) {
-#ifdef AR9170_QUEUE_DEBUG
-		wiphy_debug(ar->hw->wiphy, "garbage collector scans queue:%d\n",
-			    i);
-		ar9170_dump_txqueue(ar, &ar->tx_pending[i]);
-		ar9170_dump_txqueue(ar, &ar->tx_status[i]);
-#endif /* AR9170_QUEUE_DEBUG */
-
-		ar9170_recycle_expired(ar, &ar->tx_status[i], &waste);
-		ar9170_recycle_expired(ar, &ar->tx_pending[i], &waste);
-		skb_queue_purge(&waste);
-
-		if (!skb_queue_empty(&ar->tx_status[i]) ||
-		    !skb_queue_empty(&ar->tx_pending[i]))
-			resched = true;
-	}
-
-	if (!resched)
-		return;
-
-	ieee80211_queue_delayed_work(ar->hw,
-				     &ar->tx_janitor,
-				     msecs_to_jiffies(AR9170_JANITOR_DELAY));
-}
-
-void ar9170_handle_command_response(struct ar9170 *ar, void *buf, u32 len)
-{
-	struct ar9170_cmd_response *cmd = (void *) buf;
-
-	if ((cmd->type & 0xc0) != 0xc0) {
-		ar->callback_cmd(ar, len, buf);
-		return;
-	}
-
-	/* hardware event handlers */
-	switch (cmd->type) {
-	case 0xc1: {
-		/*
-		 * TX status notification:
-		 * bytes: 0c c1 XX YY M1 M2 M3 M4 M5 M6 R4 R3 R2 R1 S2 S1
-		 *
-		 * XX always 81
-		 * YY always 00
-		 * M1-M6 is the MAC address
-		 * R1-R4 is the transmit rate
-		 * S1-S2 is the transmit status
-		 */
-
-		struct sk_buff *skb;
-		u32 phy = le32_to_cpu(cmd->tx_status.rate);
-		u32 q = (phy & AR9170_TX_PHY_QOS_MASK) >>
-			AR9170_TX_PHY_QOS_SHIFT;
-#ifdef AR9170_QUEUE_DEBUG
-		wiphy_debug(ar->hw->wiphy,
-			    "recv tx_status for %pm, p:%08x, q:%d\n",
-			    cmd->tx_status.dst, phy, q);
-#endif /* AR9170_QUEUE_DEBUG */
-
-		skb = ar9170_get_queued_skb(ar, cmd->tx_status.dst,
-					    &ar->tx_status[q],
-					    AR9170_TX_INVALID_RATE);
-		if (unlikely(!skb))
-			return ;
-
-		ar9170_tx_status(ar, skb, le16_to_cpu(cmd->tx_status.status));
-		break;
-		}
-
-	case 0xc0:
-		/*
-		 * pre-TBTT event
-		 */
-		if (ar->vif && ar->vif->type == NL80211_IFTYPE_AP)
-			ieee80211_queue_work(ar->hw, &ar->beacon_work);
-		break;
-
-	case 0xc2:
-		/*
-		 * (IBSS) beacon send notification
-		 * bytes: 04 c2 XX YY B4 B3 B2 B1
-		 *
-		 * XX always 80
-		 * YY always 00
-		 * B1-B4 "should" be the number of send out beacons.
-		 */
-		break;
-
-	case 0xc3:
-		/* End of Atim Window */
-		break;
-
-	case 0xc4:
-		/* BlockACK bitmap */
-		break;
-
-	case 0xc5:
-		/* BlockACK events */
-		break;
-
-	case 0xc6:
-		/* Watchdog Interrupt */
-		break;
-
-	case 0xc9:
-		/* retransmission issue / SIFS/EIFS collision ?! */
-		break;
-
-	/* firmware debug */
-	case 0xca:
-		printk(KERN_DEBUG "ar9170 FW: %.*s\n", len - 4,
-				(char *)buf + 4);
-		break;
-	case 0xcb:
-		len -= 4;
-
-		switch (len) {
-		case 1:
-			printk(KERN_DEBUG "ar9170 FW: u8: %#.2x\n",
-				*((char *)buf + 4));
-			break;
-		case 2:
-			printk(KERN_DEBUG "ar9170 FW: u8: %#.4x\n",
-				le16_to_cpup((__le16 *)((char *)buf + 4)));
-			break;
-		case 4:
-			printk(KERN_DEBUG "ar9170 FW: u8: %#.8x\n",
-				le32_to_cpup((__le32 *)((char *)buf + 4)));
-			break;
-		case 8:
-			printk(KERN_DEBUG "ar9170 FW: u8: %#.16lx\n",
-				(unsigned long)le64_to_cpup(
-						(__le64 *)((char *)buf + 4)));
-			break;
-		}
-		break;
-	case 0xcc:
-		print_hex_dump_bytes("ar9170 FW:", DUMP_PREFIX_NONE,
-				     (char *)buf + 4, len - 4);
-		break;
-
-	default:
-		pr_info("received unhandled event %x\n", cmd->type);
-		print_hex_dump_bytes("dump:", DUMP_PREFIX_NONE, buf, len);
-		break;
-	}
-}
-
-static void ar9170_rx_reset_rx_mpdu(struct ar9170 *ar)
-{
-	memset(&ar->rx_mpdu.plcp, 0, sizeof(struct ar9170_rx_head));
-	ar->rx_mpdu.has_plcp = false;
-}
-
-int ar9170_nag_limiter(struct ar9170 *ar)
-{
-	bool print_message;
-
-	/*
-	 * we expect all sorts of errors in promiscuous mode.
-	 * don't bother with it, it's OK!
-	 */
-	if (ar->sniffer_enabled)
-		return false;
-
-	/*
-	 * only go for frequent errors! The hardware tends to
-	 * do some stupid thing once in a while under load, in
-	 * noisy environments or just for fun!
-	 */
-	if (time_before(jiffies, ar->bad_hw_nagger) && net_ratelimit())
-		print_message = true;
-	else
-		print_message = false;
-
-	/* reset threshold for "once in a while" */
-	ar->bad_hw_nagger = jiffies + HZ / 4;
-	return print_message;
-}
-
-static int ar9170_rx_mac_status(struct ar9170 *ar,
-				struct ar9170_rx_head *head,
-				struct ar9170_rx_macstatus *mac,
-				struct ieee80211_rx_status *status)
-{
-	u8 error, decrypt;
-
-	BUILD_BUG_ON(sizeof(struct ar9170_rx_head) != 12);
-	BUILD_BUG_ON(sizeof(struct ar9170_rx_macstatus) != 4);
-
-	error = mac->error;
-	if (error & AR9170_RX_ERROR_MMIC) {
-		status->flag |= RX_FLAG_MMIC_ERROR;
-		error &= ~AR9170_RX_ERROR_MMIC;
-	}
-
-	if (error & AR9170_RX_ERROR_PLCP) {
-		status->flag |= RX_FLAG_FAILED_PLCP_CRC;
-		error &= ~AR9170_RX_ERROR_PLCP;
-
-		if (!(ar->filter_state & FIF_PLCPFAIL))
-			return -EINVAL;
-	}
-
-	if (error & AR9170_RX_ERROR_FCS) {
-		status->flag |= RX_FLAG_FAILED_FCS_CRC;
-		error &= ~AR9170_RX_ERROR_FCS;
-
-		if (!(ar->filter_state & FIF_FCSFAIL))
-			return -EINVAL;
-	}
-
-	decrypt = ar9170_get_decrypt_type(mac);
-	if (!(decrypt & AR9170_RX_ENC_SOFTWARE) &&
-	    decrypt != AR9170_ENC_ALG_NONE)
-		status->flag |= RX_FLAG_DECRYPTED;
-
-	/* ignore wrong RA errors */
-	error &= ~AR9170_RX_ERROR_WRONG_RA;
-
-	if (error & AR9170_RX_ERROR_DECRYPT) {
-		error &= ~AR9170_RX_ERROR_DECRYPT;
-		/*
-		 * Rx decryption is done in place,
-		 * the original data is lost anyway.
-		 */
-
-		return -EINVAL;
-	}
-
-	/* drop any other error frames */
-	if (unlikely(error)) {
-		/* TODO: update netdevice's RX dropped/errors statistics */
-
-		if (ar9170_nag_limiter(ar))
-			wiphy_debug(ar->hw->wiphy,
-				    "received frame with suspicious error code (%#x).\n",
-				    error);
-
-		return -EINVAL;
-	}
-
-	status->band = ar->channel->band;
-	status->freq = ar->channel->center_freq;
-
-	switch (mac->status & AR9170_RX_STATUS_MODULATION_MASK) {
-	case AR9170_RX_STATUS_MODULATION_CCK:
-		if (mac->status & AR9170_RX_STATUS_SHORT_PREAMBLE)
-			status->flag |= RX_FLAG_SHORTPRE;
-		switch (head->plcp[0]) {
-		case 0x0a:
-			status->rate_idx = 0;
-			break;
-		case 0x14:
-			status->rate_idx = 1;
-			break;
-		case 0x37:
-			status->rate_idx = 2;
-			break;
-		case 0x6e:
-			status->rate_idx = 3;
-			break;
-		default:
-			if (ar9170_nag_limiter(ar))
-				wiphy_err(ar->hw->wiphy,
-					  "invalid plcp cck rate (%x).\n",
-					  head->plcp[0]);
-			return -EINVAL;
-		}
-		break;
-
-	case AR9170_RX_STATUS_MODULATION_DUPOFDM:
-	case AR9170_RX_STATUS_MODULATION_OFDM:
-		switch (head->plcp[0] & 0xf) {
-		case 0xb:
-			status->rate_idx = 0;
-			break;
-		case 0xf:
-			status->rate_idx = 1;
-			break;
-		case 0xa:
-			status->rate_idx = 2;
-			break;
-		case 0xe:
-			status->rate_idx = 3;
-			break;
-		case 0x9:
-			status->rate_idx = 4;
-			break;
-		case 0xd:
-			status->rate_idx = 5;
-			break;
-		case 0x8:
-			status->rate_idx = 6;
-			break;
-		case 0xc:
-			status->rate_idx = 7;
-			break;
-		default:
-			if (ar9170_nag_limiter(ar))
-				wiphy_err(ar->hw->wiphy,
-					  "invalid plcp ofdm rate (%x).\n",
-					  head->plcp[0]);
-			return -EINVAL;
-		}
-		if (status->band == IEEE80211_BAND_2GHZ)
-			status->rate_idx += 4;
-		break;
-
-	case AR9170_RX_STATUS_MODULATION_HT:
-		if (head->plcp[3] & 0x80)
-			status->flag |= RX_FLAG_40MHZ;
-		if (head->plcp[6] & 0x80)
-			status->flag |= RX_FLAG_SHORT_GI;
-
-		status->rate_idx = clamp(0, 75, head->plcp[6] & 0x7f);
-		status->flag |= RX_FLAG_HT;
-		break;
-
-	default:
-		if (ar9170_nag_limiter(ar))
-			wiphy_err(ar->hw->wiphy, "invalid modulation\n");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static void ar9170_rx_phy_status(struct ar9170 *ar,
-				 struct ar9170_rx_phystatus *phy,
-				 struct ieee80211_rx_status *status)
-{
-	int i;
-
-	BUILD_BUG_ON(sizeof(struct ar9170_rx_phystatus) != 20);
-
-	for (i = 0; i < 3; i++)
-		if (phy->rssi[i] != 0x80)
-			status->antenna |= BIT(i);
-
-	/* post-process RSSI */
-	for (i = 0; i < 7; i++)
-		if (phy->rssi[i] & 0x80)
-			phy->rssi[i] = ((phy->rssi[i] & 0x7f) + 1) & 0x7f;
-
-	/* TODO: we could do something with phy_errors */
-	status->signal = ar->noise[0] + phy->rssi_combined;
-}
-
-static struct sk_buff *ar9170_rx_copy_data(u8 *buf, int len)
-{
-	struct sk_buff *skb;
-	int reserved = 0;
-	struct ieee80211_hdr *hdr = (void *) buf;
-
-	if (ieee80211_is_data_qos(hdr->frame_control)) {
-		u8 *qc = ieee80211_get_qos_ctl(hdr);
-		reserved += NET_IP_ALIGN;
-
-		if (*qc & IEEE80211_QOS_CONTROL_A_MSDU_PRESENT)
-			reserved += NET_IP_ALIGN;
-	}
-
-	if (ieee80211_has_a4(hdr->frame_control))
-		reserved += NET_IP_ALIGN;
-
-	reserved = 32 + (reserved & NET_IP_ALIGN);
-
-	skb = dev_alloc_skb(len + reserved);
-	if (likely(skb)) {
-		skb_reserve(skb, reserved);
-		memcpy(skb_put(skb, len), buf, len);
-	}
-
-	return skb;
-}
-
-/*
- * If the frame alignment is right (or the kernel has
- * CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS), and there
- * is only a single MPDU in the USB frame, then we could
- * submit to mac80211 the SKB directly. However, since
- * there may be multiple packets in one SKB in stream
- * mode, and we need to observe the proper ordering,
- * this is non-trivial.
- */
-
-static void ar9170_handle_mpdu(struct ar9170 *ar, u8 *buf, int len)
-{
-	struct ar9170_rx_head *head;
-	struct ar9170_rx_macstatus *mac;
-	struct ar9170_rx_phystatus *phy = NULL;
-	struct ieee80211_rx_status status;
-	struct sk_buff *skb;
-	int mpdu_len;
-
-	if (unlikely(!IS_STARTED(ar) || len < (sizeof(*mac))))
-		return ;
-
-	/* Received MPDU */
-	mpdu_len = len - sizeof(*mac);
-
-	mac = (void *)(buf + mpdu_len);
-	if (unlikely(mac->error & AR9170_RX_ERROR_FATAL)) {
-		/* this frame is too damaged and can't be used - drop it */
-
-		return ;
-	}
-
-	switch (mac->status & AR9170_RX_STATUS_MPDU_MASK) {
-	case AR9170_RX_STATUS_MPDU_FIRST:
-		/* first mpdu packet has the plcp header */
-		if (likely(mpdu_len >= sizeof(struct ar9170_rx_head))) {
-			head = (void *) buf;
-			memcpy(&ar->rx_mpdu.plcp, (void *) buf,
-			       sizeof(struct ar9170_rx_head));
-
-			mpdu_len -= sizeof(struct ar9170_rx_head);
-			buf += sizeof(struct ar9170_rx_head);
-			ar->rx_mpdu.has_plcp = true;
-		} else {
-			if (ar9170_nag_limiter(ar))
-				wiphy_err(ar->hw->wiphy,
-					  "plcp info is clipped.\n");
-			return ;
-		}
-		break;
-
-	case AR9170_RX_STATUS_MPDU_LAST:
-		/* last mpdu has a extra tail with phy status information */
-
-		if (likely(mpdu_len >= sizeof(struct ar9170_rx_phystatus))) {
-			mpdu_len -= sizeof(struct ar9170_rx_phystatus);
-			phy = (void *)(buf + mpdu_len);
-		} else {
-			if (ar9170_nag_limiter(ar))
-				wiphy_err(ar->hw->wiphy,
-					  "frame tail is clipped.\n");
-			return ;
-		}
-
-	case AR9170_RX_STATUS_MPDU_MIDDLE:
-		/* middle mpdus are just data */
-		if (unlikely(!ar->rx_mpdu.has_plcp)) {
-			if (!ar9170_nag_limiter(ar))
-				return ;
-
-			wiphy_err(ar->hw->wiphy,
-				  "rx stream did not start with a first_mpdu frame tag.\n");
-
-			return ;
-		}
-
-		head = &ar->rx_mpdu.plcp;
-		break;
-
-	case AR9170_RX_STATUS_MPDU_SINGLE:
-		/* single mpdu - has plcp (head) and phy status (tail) */
-		head = (void *) buf;
-
-		mpdu_len -= sizeof(struct ar9170_rx_head);
-		mpdu_len -= sizeof(struct ar9170_rx_phystatus);
-
-		buf += sizeof(struct ar9170_rx_head);
-		phy = (void *)(buf + mpdu_len);
-		break;
-
-	default:
-		BUG_ON(1);
-		break;
-	}
-
-	if (unlikely(mpdu_len < FCS_LEN))
-		return ;
-
-	memset(&status, 0, sizeof(status));
-	if (unlikely(ar9170_rx_mac_status(ar, head, mac, &status)))
-		return ;
-
-	if (phy)
-		ar9170_rx_phy_status(ar, phy, &status);
-
-	skb = ar9170_rx_copy_data(buf, mpdu_len);
-	if (likely(skb)) {
-		memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
-		ieee80211_rx_irqsafe(ar->hw, skb);
-	}
-}
-
-void ar9170_rx(struct ar9170 *ar, struct sk_buff *skb)
-{
-	unsigned int i, tlen, resplen, wlen = 0, clen = 0;
-	u8 *tbuf, *respbuf;
-
-	tbuf = skb->data;
-	tlen = skb->len;
-
-	while (tlen >= 4) {
-		clen = tbuf[1] << 8 | tbuf[0];
-		wlen = ALIGN(clen, 4);
-
-		/* check if this is stream has a valid tag.*/
-		if (tbuf[2] != 0 || tbuf[3] != 0x4e) {
-			/*
-			 * TODO: handle the highly unlikely event that the
-			 * corrupted stream has the TAG at the right position.
-			 */
-
-			/* check if the frame can be repaired. */
-			if (!ar->rx_failover_missing) {
-				/* this is no "short read". */
-				if (ar9170_nag_limiter(ar)) {
-					wiphy_err(ar->hw->wiphy,
-						  "missing tag!\n");
-					goto err_telluser;
-				} else
-					goto err_silent;
-			}
-
-			if (ar->rx_failover_missing > tlen) {
-				if (ar9170_nag_limiter(ar)) {
-					wiphy_err(ar->hw->wiphy,
-						  "possible multi stream corruption!\n");
-					goto err_telluser;
-				} else
-					goto err_silent;
-			}
-
-			memcpy(skb_put(ar->rx_failover, tlen), tbuf, tlen);
-			ar->rx_failover_missing -= tlen;
-
-			if (ar->rx_failover_missing <= 0) {
-				/*
-				 * nested ar9170_rx call!
-				 * termination is guaranteed, even when the
-				 * combined frame also have a element with
-				 * a bad tag.
-				 */
-
-				ar->rx_failover_missing = 0;
-				ar9170_rx(ar, ar->rx_failover);
-
-				skb_reset_tail_pointer(ar->rx_failover);
-				skb_trim(ar->rx_failover, 0);
-			}
-
-			return ;
-		}
-
-		/* check if stream is clipped */
-		if (wlen > tlen - 4) {
-			if (ar->rx_failover_missing) {
-				/* TODO: handle double stream corruption. */
-				if (ar9170_nag_limiter(ar)) {
-					wiphy_err(ar->hw->wiphy,
-						  "double rx stream corruption!\n");
-					goto err_telluser;
-				} else
-					goto err_silent;
-			}
-
-			/*
-			 * save incomplete data set.
-			 * the firmware will resend the missing bits when
-			 * the rx - descriptor comes round again.
-			 */
-
-			memcpy(skb_put(ar->rx_failover, tlen), tbuf, tlen);
-			ar->rx_failover_missing = clen - tlen;
-			return ;
-		}
-		resplen = clen;
-		respbuf = tbuf + 4;
-		tbuf += wlen + 4;
-		tlen -= wlen + 4;
-
-		i = 0;
-
-		/* weird thing, but this is the same in the original driver */
-		while (resplen > 2 && i < 12 &&
-		       respbuf[0] == 0xff && respbuf[1] == 0xff) {
-			i += 2;
-			resplen -= 2;
-			respbuf += 2;
-		}
-
-		if (resplen < 4)
-			continue;
-
-		/* found the 6 * 0xffff marker? */
-		if (i == 12)
-			ar9170_handle_command_response(ar, respbuf, resplen);
-		else
-			ar9170_handle_mpdu(ar, respbuf, clen);
-	}
-
-	if (tlen) {
-		if (net_ratelimit())
-			wiphy_err(ar->hw->wiphy,
-				  "%d bytes of unprocessed data left in rx stream!\n",
-				  tlen);
-
-		goto err_telluser;
-	}
-
-	return ;
-
-err_telluser:
-	wiphy_err(ar->hw->wiphy,
-		  "damaged RX stream data [want:%d, data:%d, rx:%d, pending:%d ]\n",
-		  clen, wlen, tlen, ar->rx_failover_missing);
-
-	if (ar->rx_failover_missing)
-		print_hex_dump_bytes("rxbuf:", DUMP_PREFIX_OFFSET,
-				     ar->rx_failover->data,
-				     ar->rx_failover->len);
-
-	print_hex_dump_bytes("stream:", DUMP_PREFIX_OFFSET,
-			     skb->data, skb->len);
-
-	wiphy_err(ar->hw->wiphy,
-		  "If you see this message frequently, please check your hardware and cables.\n");
-
-err_silent:
-	if (ar->rx_failover_missing) {
-		skb_reset_tail_pointer(ar->rx_failover);
-		skb_trim(ar->rx_failover, 0);
-		ar->rx_failover_missing = 0;
-	}
-}
-
-#define AR9170_FILL_QUEUE(queue, ai_fs, cwmin, cwmax, _txop)		\
-do {									\
-	queue.aifs = ai_fs;						\
-	queue.cw_min = cwmin;						\
-	queue.cw_max = cwmax;						\
-	queue.txop = _txop;						\
-} while (0)
-
-static int ar9170_op_start(struct ieee80211_hw *hw)
-{
-	struct ar9170 *ar = hw->priv;
-	int err, i;
-
-	mutex_lock(&ar->mutex);
-
-	/* reinitialize queues statistics */
-	memset(&ar->tx_stats, 0, sizeof(ar->tx_stats));
-	for (i = 0; i < __AR9170_NUM_TXQ; i++)
-		ar->tx_stats[i].limit = AR9170_TXQ_DEPTH;
-
-	/* reset QoS defaults */
-	AR9170_FILL_QUEUE(ar->edcf[0], 3, 15, 1023,  0); /* BEST EFFORT*/
-	AR9170_FILL_QUEUE(ar->edcf[1], 7, 15, 1023,  0); /* BACKGROUND */
-	AR9170_FILL_QUEUE(ar->edcf[2], 2, 7,    15, 94); /* VIDEO */
-	AR9170_FILL_QUEUE(ar->edcf[3], 2, 3,     7, 47); /* VOICE */
-	AR9170_FILL_QUEUE(ar->edcf[4], 2, 3,     7,  0); /* SPECIAL */
-
-	/* set sane AMPDU defaults */
-	ar->global_ampdu_density = 6;
-	ar->global_ampdu_factor = 3;
-
-	ar->bad_hw_nagger = jiffies;
-
-	err = ar->open(ar);
-	if (err)
-		goto out;
-
-	err = ar9170_init_mac(ar);
-	if (err)
-		goto out;
-
-	err = ar9170_set_qos(ar);
-	if (err)
-		goto out;
-
-	err = ar9170_init_phy(ar, IEEE80211_BAND_2GHZ);
-	if (err)
-		goto out;
-
-	err = ar9170_init_rf(ar);
-	if (err)
-		goto out;
-
-	/* start DMA */
-	err = ar9170_write_reg(ar, 0x1c3d30, 0x100);
-	if (err)
-		goto out;
-
-	ar->state = AR9170_STARTED;
-
-out:
-	mutex_unlock(&ar->mutex);
-	return err;
-}
-
-static void ar9170_op_stop(struct ieee80211_hw *hw)
-{
-	struct ar9170 *ar = hw->priv;
-	unsigned int i;
-
-	if (IS_STARTED(ar))
-		ar->state = AR9170_IDLE;
-
-	cancel_delayed_work_sync(&ar->tx_janitor);
-#ifdef CONFIG_AR9170_LEDS
-	cancel_delayed_work_sync(&ar->led_work);
-#endif
-	cancel_work_sync(&ar->beacon_work);
-
-	mutex_lock(&ar->mutex);
-
-	if (IS_ACCEPTING_CMD(ar)) {
-		ar9170_set_leds_state(ar, 0);
-
-		/* stop DMA */
-		ar9170_write_reg(ar, 0x1c3d30, 0);
-		ar->stop(ar);
-	}
-
-	for (i = 0; i < __AR9170_NUM_TXQ; i++) {
-		skb_queue_purge(&ar->tx_pending[i]);
-		skb_queue_purge(&ar->tx_status[i]);
-	}
-
-	mutex_unlock(&ar->mutex);
-}
-
-static int ar9170_tx_prepare(struct ar9170 *ar, struct sk_buff *skb)
-{
-	struct ieee80211_hdr *hdr;
-	struct ar9170_tx_control *txc;
-	struct ieee80211_tx_info *info;
-	struct ieee80211_tx_rate *txrate;
-	struct ar9170_tx_info *arinfo;
-	unsigned int queue = skb_get_queue_mapping(skb);
-	u16 keytype = 0;
-	u16 len, icv = 0;
-
-	BUILD_BUG_ON(sizeof(*arinfo) > sizeof(info->rate_driver_data));
-
-	hdr = (void *)skb->data;
-	info = IEEE80211_SKB_CB(skb);
-	len = skb->len;
-
-	txc = (void *)skb_push(skb, sizeof(*txc));
-
-	if (info->control.hw_key) {
-		icv = info->control.hw_key->icv_len;
-
-		switch (info->control.hw_key->cipher) {
-		case WLAN_CIPHER_SUITE_WEP40:
-		case WLAN_CIPHER_SUITE_WEP104:
-		case WLAN_CIPHER_SUITE_TKIP:
-			keytype = AR9170_TX_MAC_ENCR_RC4;
-			break;
-		case WLAN_CIPHER_SUITE_CCMP:
-			keytype = AR9170_TX_MAC_ENCR_AES;
-			break;
-		default:
-			WARN_ON(1);
-			goto err_out;
-		}
-	}
-
-	/* Length */
-	txc->length = cpu_to_le16(len + icv + 4);
-
-	txc->mac_control = cpu_to_le16(AR9170_TX_MAC_HW_DURATION |
-				       AR9170_TX_MAC_BACKOFF);
-	txc->mac_control |= cpu_to_le16(ar9170_qos_hwmap[queue] <<
-					AR9170_TX_MAC_QOS_SHIFT);
-	txc->mac_control |= cpu_to_le16(keytype);
-	txc->phy_control = cpu_to_le32(0);
-
-	if (info->flags & IEEE80211_TX_CTL_NO_ACK)
-		txc->mac_control |= cpu_to_le16(AR9170_TX_MAC_NO_ACK);
-
-	txrate = &info->control.rates[0];
-	if (txrate->flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
-		txc->mac_control |= cpu_to_le16(AR9170_TX_MAC_PROT_CTS);
-	else if (txrate->flags & IEEE80211_TX_RC_USE_RTS_CTS)
-		txc->mac_control |= cpu_to_le16(AR9170_TX_MAC_PROT_RTS);
-
-	arinfo = (void *)info->rate_driver_data;
-	arinfo->timeout = jiffies + msecs_to_jiffies(AR9170_QUEUE_TIMEOUT);
-
-	if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
-	     (is_valid_ether_addr(ieee80211_get_DA(hdr)))) {
-		/*
-		 * WARNING:
-		 * Putting the QoS queue bits into an unexplored territory is
-		 * certainly not elegant.
-		 *
-		 * In my defense: This idea provides a reasonable way to
-		 * smuggle valuable information to the tx_status callback.
-		 * Also, the idea behind this bit-abuse came straight from
-		 * the original driver code.
-		 */
-
-		txc->phy_control |=
-			cpu_to_le32(queue << AR9170_TX_PHY_QOS_SHIFT);
-
-		txc->mac_control |= cpu_to_le16(AR9170_TX_MAC_RATE_PROBE);
-	}
-
-	return 0;
-
-err_out:
-	skb_pull(skb, sizeof(*txc));
-	return -EINVAL;
-}
-
-static void ar9170_tx_prepare_phy(struct ar9170 *ar, struct sk_buff *skb)
-{
-	struct ar9170_tx_control *txc;
-	struct ieee80211_tx_info *info;
-	struct ieee80211_rate *rate = NULL;
-	struct ieee80211_tx_rate *txrate;
-	u32 power, chains;
-
-	txc = (void *) skb->data;
-	info = IEEE80211_SKB_CB(skb);
-	txrate = &info->control.rates[0];
-
-	if (txrate->flags & IEEE80211_TX_RC_GREEN_FIELD)
-		txc->phy_control |= cpu_to_le32(AR9170_TX_PHY_GREENFIELD);
-
-	if (txrate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
-		txc->phy_control |= cpu_to_le32(AR9170_TX_PHY_SHORT_PREAMBLE);
-
-	if (txrate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
-		txc->phy_control |= cpu_to_le32(AR9170_TX_PHY_BW_40MHZ);
-	/* this works because 40 MHz is 2 and dup is 3 */
-	if (txrate->flags & IEEE80211_TX_RC_DUP_DATA)
-		txc->phy_control |= cpu_to_le32(AR9170_TX_PHY_BW_40MHZ_DUP);
-
-	if (txrate->flags & IEEE80211_TX_RC_SHORT_GI)
-		txc->phy_control |= cpu_to_le32(AR9170_TX_PHY_SHORT_GI);
-
-	if (txrate->flags & IEEE80211_TX_RC_MCS) {
-		u32 r = txrate->idx;
-		u8 *txpower;
-
-		/* heavy clip control */
-		txc->phy_control |= cpu_to_le32((r & 0x7) << 7);
-
-		r <<= AR9170_TX_PHY_MCS_SHIFT;
-		BUG_ON(r & ~AR9170_TX_PHY_MCS_MASK);
-
-		txc->phy_control |= cpu_to_le32(r & AR9170_TX_PHY_MCS_MASK);
-		txc->phy_control |= cpu_to_le32(AR9170_TX_PHY_MOD_HT);
-
-		if (txrate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) {
-			if (info->band == IEEE80211_BAND_5GHZ)
-				txpower = ar->power_5G_ht40;
-			else
-				txpower = ar->power_2G_ht40;
-		} else {
-			if (info->band == IEEE80211_BAND_5GHZ)
-				txpower = ar->power_5G_ht20;
-			else
-				txpower = ar->power_2G_ht20;
-		}
-
-		power = txpower[(txrate->idx) & 7];
-	} else {
-		u8 *txpower;
-		u32 mod;
-		u32 phyrate;
-		u8 idx = txrate->idx;
-
-		if (info->band != IEEE80211_BAND_2GHZ) {
-			idx += 4;
-			txpower = ar->power_5G_leg;
-			mod = AR9170_TX_PHY_MOD_OFDM;
-		} else {
-			if (idx < 4) {
-				txpower = ar->power_2G_cck;
-				mod = AR9170_TX_PHY_MOD_CCK;
-			} else {
-				mod = AR9170_TX_PHY_MOD_OFDM;
-				txpower = ar->power_2G_ofdm;
-			}
-		}
-
-		rate = &__ar9170_ratetable[idx];
-
-		phyrate = rate->hw_value & 0xF;
-		power = txpower[(rate->hw_value & 0x30) >> 4];
-		phyrate <<= AR9170_TX_PHY_MCS_SHIFT;
-
-		txc->phy_control |= cpu_to_le32(mod);
-		txc->phy_control |= cpu_to_le32(phyrate);
-	}
-
-	power <<= AR9170_TX_PHY_TX_PWR_SHIFT;
-	power &= AR9170_TX_PHY_TX_PWR_MASK;
-	txc->phy_control |= cpu_to_le32(power);
-
-	/* set TX chains */
-	if (ar->eeprom.tx_mask == 1) {
-		chains = AR9170_TX_PHY_TXCHAIN_1;
-	} else {
-		chains = AR9170_TX_PHY_TXCHAIN_2;
-
-		/* >= 36M legacy OFDM - use only one chain */
-		if (rate && rate->bitrate >= 360)
-			chains = AR9170_TX_PHY_TXCHAIN_1;
-	}
-	txc->phy_control |= cpu_to_le32(chains << AR9170_TX_PHY_TXCHAIN_SHIFT);
-}
-
-static void ar9170_tx(struct ar9170 *ar)
-{
-	struct sk_buff *skb;
-	unsigned long flags;
-	struct ieee80211_tx_info *info;
-	struct ar9170_tx_info *arinfo;
-	unsigned int i, frames, frames_failed, remaining_space;
-	int err;
-	bool schedule_garbagecollector = false;
-
-	BUILD_BUG_ON(sizeof(*arinfo) > sizeof(info->rate_driver_data));
-
-	if (unlikely(!IS_STARTED(ar)))
-		return ;
-
-	remaining_space = AR9170_TX_MAX_PENDING;
-
-	for (i = 0; i < __AR9170_NUM_TXQ; i++) {
-		spin_lock_irqsave(&ar->tx_stats_lock, flags);
-		frames = min(ar->tx_stats[i].limit - ar->tx_stats[i].len,
-			     skb_queue_len(&ar->tx_pending[i]));
-
-		if (remaining_space < frames) {
-#ifdef AR9170_QUEUE_DEBUG
-			wiphy_debug(ar->hw->wiphy,
-				    "tx quota reached queue:%d, "
-				    "remaining slots:%d, needed:%d\n",
-				    i, remaining_space, frames);
-#endif /* AR9170_QUEUE_DEBUG */
-			frames = remaining_space;
-		}
-
-		ar->tx_stats[i].len += frames;
-		ar->tx_stats[i].count += frames;
-		if (ar->tx_stats[i].len >= ar->tx_stats[i].limit) {
-#ifdef AR9170_QUEUE_DEBUG
-			wiphy_debug(ar->hw->wiphy, "queue %d full\n", i);
-			wiphy_debug(ar->hw->wiphy, "stuck frames: ===>\n");
-			ar9170_dump_txqueue(ar, &ar->tx_pending[i]);
-			ar9170_dump_txqueue(ar, &ar->tx_status[i]);
-#endif /* AR9170_QUEUE_DEBUG */
-
-#ifdef AR9170_QUEUE_STOP_DEBUG
-			wiphy_debug(ar->hw->wiphy, "stop queue %d\n", i);
-			__ar9170_dump_txstats(ar);
-#endif /* AR9170_QUEUE_STOP_DEBUG */
-			ieee80211_stop_queue(ar->hw, i);
-		}
-
-		spin_unlock_irqrestore(&ar->tx_stats_lock, flags);
-
-		if (!frames)
-			continue;
-
-		frames_failed = 0;
-		while (frames) {
-			skb = skb_dequeue(&ar->tx_pending[i]);
-			if (unlikely(!skb)) {
-				frames_failed += frames;
-				frames = 0;
-				break;
-			}
-
-			info = IEEE80211_SKB_CB(skb);
-			arinfo = (void *) info->rate_driver_data;
-
-			/* TODO: cancel stuck frames */
-			arinfo->timeout = jiffies +
-					  msecs_to_jiffies(AR9170_TX_TIMEOUT);
-
-#ifdef AR9170_QUEUE_DEBUG
-			wiphy_debug(ar->hw->wiphy, "send frame q:%d =>\n", i);
-			ar9170_print_txheader(ar, skb);
-#endif /* AR9170_QUEUE_DEBUG */
-
-			err = ar->tx(ar, skb);
-			if (unlikely(err)) {
-				frames_failed++;
-				dev_kfree_skb_any(skb);
-			} else {
-				remaining_space--;
-				schedule_garbagecollector = true;
-			}
-
-			frames--;
-		}
-
-#ifdef AR9170_QUEUE_DEBUG
-		wiphy_debug(ar->hw->wiphy,
-			    "ar9170_tx report for queue %d\n", i);
-
-		wiphy_debug(ar->hw->wiphy,
-			    "unprocessed pending frames left:\n");
-		ar9170_dump_txqueue(ar, &ar->tx_pending[i]);
-#endif /* AR9170_QUEUE_DEBUG */
-
-		if (unlikely(frames_failed)) {
-#ifdef AR9170_QUEUE_DEBUG
-			wiphy_debug(ar->hw->wiphy,
-				    "frames failed %d =>\n", frames_failed);
-#endif /* AR9170_QUEUE_DEBUG */
-
-			spin_lock_irqsave(&ar->tx_stats_lock, flags);
-			ar->tx_stats[i].len -= frames_failed;
-			ar->tx_stats[i].count -= frames_failed;
-#ifdef AR9170_QUEUE_STOP_DEBUG
-			wiphy_debug(ar->hw->wiphy, "wake queue %d\n", i);
-			__ar9170_dump_txstats(ar);
-#endif /* AR9170_QUEUE_STOP_DEBUG */
-			ieee80211_wake_queue(ar->hw, i);
-			spin_unlock_irqrestore(&ar->tx_stats_lock, flags);
-		}
-	}
-
-	if (!schedule_garbagecollector)
-		return;
-
-	ieee80211_queue_delayed_work(ar->hw,
-				     &ar->tx_janitor,
-				     msecs_to_jiffies(AR9170_JANITOR_DELAY));
-}
-
-void ar9170_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
-{
-	struct ar9170 *ar = hw->priv;
-	struct ieee80211_tx_info *info;
-	unsigned int queue;
-
-	if (unlikely(!IS_STARTED(ar)))
-		goto err_free;
-
-	if (unlikely(ar9170_tx_prepare(ar, skb)))
-		goto err_free;
-
-	queue = skb_get_queue_mapping(skb);
-	info = IEEE80211_SKB_CB(skb);
-	ar9170_tx_prepare_phy(ar, skb);
-	skb_queue_tail(&ar->tx_pending[queue], skb);
-
-	ar9170_tx(ar);
-	return;
-
-err_free:
-	dev_kfree_skb_any(skb);
-}
-
-static int ar9170_op_add_interface(struct ieee80211_hw *hw,
-				   struct ieee80211_vif *vif)
-{
-	struct ar9170 *ar = hw->priv;
-	struct ath_common *common = &ar->common;
-	int err = 0;
-
-	mutex_lock(&ar->mutex);
-
-	if (ar->vif) {
-		err = -EBUSY;
-		goto unlock;
-	}
-
-	ar->vif = vif;
-	memcpy(common->macaddr, vif->addr, ETH_ALEN);
-
-	if (modparam_nohwcrypt || (ar->vif->type != NL80211_IFTYPE_STATION)) {
-		ar->rx_software_decryption = true;
-		ar->disable_offload = true;
-	}
-
-	ar->cur_filter = 0;
-	err = ar9170_update_frame_filter(ar, AR9170_MAC_REG_FTF_DEFAULTS);
-	if (err)
-		goto unlock;
-
-	err = ar9170_set_operating_mode(ar);
-
-unlock:
-	mutex_unlock(&ar->mutex);
-	return err;
-}
-
-static void ar9170_op_remove_interface(struct ieee80211_hw *hw,
-				       struct ieee80211_vif *vif)
-{
-	struct ar9170 *ar = hw->priv;
-
-	mutex_lock(&ar->mutex);
-	ar->vif = NULL;
-	ar9170_update_frame_filter(ar, 0);
-	ar9170_set_beacon_timers(ar);
-	dev_kfree_skb(ar->beacon);
-	ar->beacon = NULL;
-	ar->sniffer_enabled = false;
-	ar->rx_software_decryption = false;
-	ar9170_set_operating_mode(ar);
-	mutex_unlock(&ar->mutex);
-}
-
-static int ar9170_op_config(struct ieee80211_hw *hw, u32 changed)
-{
-	struct ar9170 *ar = hw->priv;
-	int err = 0;
-
-	mutex_lock(&ar->mutex);
-
-	if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
-		/* TODO */
-		err = 0;
-	}
-
-	if (changed & IEEE80211_CONF_CHANGE_PS) {
-		/* TODO */
-		err = 0;
-	}
-
-	if (changed & IEEE80211_CONF_CHANGE_POWER) {
-		/* TODO */
-		err = 0;
-	}
-
-	if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
-		/*
-		 * is it long_frame_max_tx_count or short_frame_max_tx_count?
-		 */
-
-		err = ar9170_set_hwretry_limit(ar,
-			ar->hw->conf.long_frame_max_tx_count);
-		if (err)
-			goto out;
-	}
-
-	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
-
-		/* adjust slot time for 5 GHz */
-		err = ar9170_set_slot_time(ar);
-		if (err)
-			goto out;
-
-		err = ar9170_set_dyn_sifs_ack(ar);
-		if (err)
-			goto out;
-
-		err = ar9170_set_channel(ar, hw->conf.channel,
-				AR9170_RFI_NONE,
-				nl80211_to_ar9170(hw->conf.channel_type));
-		if (err)
-			goto out;
-	}
-
-out:
-	mutex_unlock(&ar->mutex);
-	return err;
-}
-
-static u64 ar9170_op_prepare_multicast(struct ieee80211_hw *hw,
-				       struct netdev_hw_addr_list *mc_list)
-{
-	u64 mchash;
-	struct netdev_hw_addr *ha;
-
-	/* always get broadcast frames */
-	mchash = 1ULL << (0xff >> 2);
-
-	netdev_hw_addr_list_for_each(ha, mc_list)
-		mchash |= 1ULL << (ha->addr[5] >> 2);
-
-	return mchash;
-}
-
-static void ar9170_op_configure_filter(struct ieee80211_hw *hw,
-				       unsigned int changed_flags,
-				       unsigned int *new_flags,
-				       u64 multicast)
-{
-	struct ar9170 *ar = hw->priv;
-
-	if (unlikely(!IS_ACCEPTING_CMD(ar)))
-		return ;
-
-	mutex_lock(&ar->mutex);
-
-	/* mask supported flags */
-	*new_flags &= FIF_ALLMULTI | FIF_CONTROL | FIF_BCN_PRBRESP_PROMISC |
-		      FIF_PROMISC_IN_BSS | FIF_FCSFAIL | FIF_PLCPFAIL;
-	ar->filter_state = *new_flags;
-	/*
-	 * We can support more by setting the sniffer bit and
-	 * then checking the error flags, later.
-	 */
-
-	if (changed_flags & FIF_ALLMULTI && *new_flags & FIF_ALLMULTI)
-		multicast = ~0ULL;
-
-	if (multicast != ar->cur_mc_hash)
-		ar9170_update_multicast(ar, multicast);
-
-	if (changed_flags & FIF_CONTROL) {
-		u32 filter = AR9170_MAC_REG_FTF_PSPOLL |
-			     AR9170_MAC_REG_FTF_RTS |
-			     AR9170_MAC_REG_FTF_CTS |
-			     AR9170_MAC_REG_FTF_ACK |
-			     AR9170_MAC_REG_FTF_CFE |
-			     AR9170_MAC_REG_FTF_CFE_ACK;
-
-		if (*new_flags & FIF_CONTROL)
-			filter |= ar->cur_filter;
-		else
-			filter &= (~ar->cur_filter);
-
-		ar9170_update_frame_filter(ar, filter);
-	}
-
-	if (changed_flags & FIF_PROMISC_IN_BSS) {
-		ar->sniffer_enabled = ((*new_flags) & FIF_PROMISC_IN_BSS) != 0;
-		ar9170_set_operating_mode(ar);
-	}
-
-	mutex_unlock(&ar->mutex);
-}
-
-
-static void ar9170_op_bss_info_changed(struct ieee80211_hw *hw,
-				       struct ieee80211_vif *vif,
-				       struct ieee80211_bss_conf *bss_conf,
-				       u32 changed)
-{
-	struct ar9170 *ar = hw->priv;
-	struct ath_common *common = &ar->common;
-	int err = 0;
-
-	mutex_lock(&ar->mutex);
-
-	if (changed & BSS_CHANGED_BSSID) {
-		memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
-		err = ar9170_set_operating_mode(ar);
-		if (err)
-			goto out;
-	}
-
-	if (changed & BSS_CHANGED_BEACON_ENABLED)
-		ar->enable_beacon = bss_conf->enable_beacon;
-
-	if (changed & BSS_CHANGED_BEACON) {
-		err = ar9170_update_beacon(ar);
-		if (err)
-			goto out;
-	}
-
-	if (changed & (BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON |
-		       BSS_CHANGED_BEACON_INT)) {
-		err = ar9170_set_beacon_timers(ar);
-		if (err)
-			goto out;
-	}
-
-	if (changed & BSS_CHANGED_ASSOC) {
-#ifndef CONFIG_AR9170_LEDS
-		/* enable assoc LED. */
-		err = ar9170_set_leds_state(ar, bss_conf->assoc ? 2 : 0);
-#endif /* CONFIG_AR9170_LEDS */
-	}
-
-	if (changed & BSS_CHANGED_HT) {
-		/* TODO */
-		err = 0;
-	}
-
-	if (changed & BSS_CHANGED_ERP_SLOT) {
-		err = ar9170_set_slot_time(ar);
-		if (err)
-			goto out;
-	}
-
-	if (changed & BSS_CHANGED_BASIC_RATES) {
-		err = ar9170_set_basic_rates(ar);
-		if (err)
-			goto out;
-	}
-
-out:
-	mutex_unlock(&ar->mutex);
-}
-
-static u64 ar9170_op_get_tsf(struct ieee80211_hw *hw)
-{
-	struct ar9170 *ar = hw->priv;
-	int err;
-	u64 tsf;
-#define NR 3
-	static const u32 addr[NR] = { AR9170_MAC_REG_TSF_H,
-				    AR9170_MAC_REG_TSF_L,
-				    AR9170_MAC_REG_TSF_H };
-	u32 val[NR];
-	int loops = 0;
-
-	mutex_lock(&ar->mutex);
-
-	while (loops++ < 10) {
-		err = ar9170_read_mreg(ar, NR, addr, val);
-		if (err || val[0] == val[2])
-			break;
-	}
-
-	mutex_unlock(&ar->mutex);
-
-	if (WARN_ON(err))
-		return 0;
-	tsf = val[0];
-	tsf = (tsf << 32) | val[1];
-	return tsf;
-#undef NR
-}
-
-static int ar9170_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 ar9170 *ar = hw->priv;
-	int err = 0, i;
-	u8 ktype;
-
-	if ((!ar->vif) || (ar->disable_offload))
-		return -EOPNOTSUPP;
-
-	switch (key->cipher) {
-	case WLAN_CIPHER_SUITE_WEP40:
-		ktype = AR9170_ENC_ALG_WEP64;
-		break;
-	case WLAN_CIPHER_SUITE_WEP104:
-		ktype = AR9170_ENC_ALG_WEP128;
-		break;
-	case WLAN_CIPHER_SUITE_TKIP:
-		ktype = AR9170_ENC_ALG_TKIP;
-		break;
-	case WLAN_CIPHER_SUITE_CCMP:
-		ktype = AR9170_ENC_ALG_AESCCMP;
-		break;
-	default:
-		return -EOPNOTSUPP;
-	}
-
-	mutex_lock(&ar->mutex);
-	if (cmd == SET_KEY) {
-		if (unlikely(!IS_STARTED(ar))) {
-			err = -EOPNOTSUPP;
-			goto out;
-		}
-
-		/* group keys need all-zeroes address */
-		if (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
-			sta = NULL;
-
-		if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
-			for (i = 0; i < 64; i++)
-				if (!(ar->usedkeys & BIT(i)))
-					break;
-			if (i == 64) {
-				ar->rx_software_decryption = true;
-				ar9170_set_operating_mode(ar);
-				err = -ENOSPC;
-				goto out;
-			}
-		} else {
-			i = 64 + key->keyidx;
-		}
-
-		key->hw_key_idx = i;
-
-		err = ar9170_upload_key(ar, i, sta ? sta->addr : NULL, ktype, 0,
-					key->key, min_t(u8, 16, key->keylen));
-		if (err)
-			goto out;
-
-		if (key->cipher == WLAN_CIPHER_SUITE_TKIP) {
-			err = ar9170_upload_key(ar, i, sta ? sta->addr : NULL,
-						ktype, 1, key->key + 16, 16);
-			if (err)
-				goto out;
-
-			/*
-			 * hardware is not capable generating the MMIC
-			 * for fragmented frames!
-			 */
-			key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
-		}
-
-		if (i < 64)
-			ar->usedkeys |= BIT(i);
-
-		key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
-	} else {
-		if (unlikely(!IS_STARTED(ar))) {
-			/* The device is gone... together with the key ;-) */
-			err = 0;
-			goto out;
-		}
-
-		err = ar9170_disable_key(ar, key->hw_key_idx);
-		if (err)
-			goto out;
-
-		if (key->hw_key_idx < 64) {
-			ar->usedkeys &= ~BIT(key->hw_key_idx);
-		} else {
-			err = ar9170_upload_key(ar, key->hw_key_idx, NULL,
-						AR9170_ENC_ALG_NONE, 0,
-						NULL, 0);
-			if (err)
-				goto out;
-
-			if (key->cipher == WLAN_CIPHER_SUITE_TKIP) {
-				err = ar9170_upload_key(ar, key->hw_key_idx,
-							NULL,
-							AR9170_ENC_ALG_NONE, 1,
-							NULL, 0);
-				if (err)
-					goto out;
-			}
-
-		}
-	}
-
-	ar9170_regwrite_begin(ar);
-	ar9170_regwrite(AR9170_MAC_REG_ROLL_CALL_TBL_L, ar->usedkeys);
-	ar9170_regwrite(AR9170_MAC_REG_ROLL_CALL_TBL_H, ar->usedkeys >> 32);
-	ar9170_regwrite_finish();
-	err = ar9170_regwrite_result();
-
-out:
-	mutex_unlock(&ar->mutex);
-
-	return err;
-}
-
-static int ar9170_get_stats(struct ieee80211_hw *hw,
-			    struct ieee80211_low_level_stats *stats)
-{
-	struct ar9170 *ar = hw->priv;
-	u32 val;
-	int err;
-
-	mutex_lock(&ar->mutex);
-	err = ar9170_read_reg(ar, AR9170_MAC_REG_TX_RETRY, &val);
-	ar->stats.dot11ACKFailureCount += val;
-
-	memcpy(stats, &ar->stats, sizeof(*stats));
-	mutex_unlock(&ar->mutex);
-
-	return 0;
-}
-
-static int ar9170_get_survey(struct ieee80211_hw *hw, int idx,
-				struct survey_info *survey)
-{
-	struct ar9170 *ar = hw->priv;
-	struct ieee80211_conf *conf = &hw->conf;
-
-	if (idx != 0)
-		return -ENOENT;
-
-	/* TODO: update noise value, e.g. call ar9170_set_channel */
-
-	survey->channel = conf->channel;
-	survey->filled = SURVEY_INFO_NOISE_DBM;
-	survey->noise = ar->noise[0];
-
-	return 0;
-}
-
-static int ar9170_conf_tx(struct ieee80211_hw *hw, u16 queue,
-			  const struct ieee80211_tx_queue_params *param)
-{
-	struct ar9170 *ar = hw->priv;
-	int ret;
-
-	mutex_lock(&ar->mutex);
-	if (queue < __AR9170_NUM_TXQ) {
-		memcpy(&ar->edcf[ar9170_qos_hwmap[queue]],
-		       param, sizeof(*param));
-
-		ret = ar9170_set_qos(ar);
-	} else {
-		ret = -EINVAL;
-	}
-
-	mutex_unlock(&ar->mutex);
-	return ret;
-}
-
-static int ar9170_ampdu_action(struct ieee80211_hw *hw,
-			       struct ieee80211_vif *vif,
-			       enum ieee80211_ampdu_mlme_action action,
-			       struct ieee80211_sta *sta, u16 tid, u16 *ssn,
-			       u8 buf_size)
-{
-	switch (action) {
-	case IEEE80211_AMPDU_RX_START:
-	case IEEE80211_AMPDU_RX_STOP:
-		/* Handled by firmware */
-		break;
-
-	default:
-		return -EOPNOTSUPP;
-	}
-
-	return 0;
-}
-
-static const struct ieee80211_ops ar9170_ops = {
-	.start			= ar9170_op_start,
-	.stop			= ar9170_op_stop,
-	.tx			= ar9170_op_tx,
-	.add_interface		= ar9170_op_add_interface,
-	.remove_interface	= ar9170_op_remove_interface,
-	.config			= ar9170_op_config,
-	.prepare_multicast	= ar9170_op_prepare_multicast,
-	.configure_filter	= ar9170_op_configure_filter,
-	.conf_tx		= ar9170_conf_tx,
-	.bss_info_changed	= ar9170_op_bss_info_changed,
-	.get_tsf		= ar9170_op_get_tsf,
-	.set_key		= ar9170_set_key,
-	.get_stats		= ar9170_get_stats,
-	.get_survey		= ar9170_get_survey,
-	.ampdu_action		= ar9170_ampdu_action,
-};
-
-void *ar9170_alloc(size_t priv_size)
-{
-	struct ieee80211_hw *hw;
-	struct ar9170 *ar;
-	struct sk_buff *skb;
-	int i;
-
-	/*
-	 * this buffer is used for rx stream reconstruction.
-	 * Under heavy load this device (or the transport layer?)
-	 * tends to split the streams into separate rx descriptors.
-	 */
-
-	skb = __dev_alloc_skb(AR9170_RX_STREAM_MAX_SIZE, GFP_KERNEL);
-	if (!skb)
-		goto err_nomem;
-
-	hw = ieee80211_alloc_hw(priv_size, &ar9170_ops);
-	if (!hw)
-		goto err_nomem;
-
-	ar = hw->priv;
-	ar->hw = hw;
-	ar->rx_failover = skb;
-
-	mutex_init(&ar->mutex);
-	spin_lock_init(&ar->cmdlock);
-	spin_lock_init(&ar->tx_stats_lock);
-	for (i = 0; i < __AR9170_NUM_TXQ; i++) {
-		skb_queue_head_init(&ar->tx_status[i]);
-		skb_queue_head_init(&ar->tx_pending[i]);
-	}
-	ar9170_rx_reset_rx_mpdu(ar);
-	INIT_WORK(&ar->beacon_work, ar9170_new_beacon);
-	INIT_DELAYED_WORK(&ar->tx_janitor, ar9170_tx_janitor);
-
-	/* all hw supports 2.4 GHz, so set channel to 1 by default */
-	ar->channel = &ar9170_2ghz_chantable[0];
-
-	/* first part of wiphy init */
-	ar->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
-					 BIT(NL80211_IFTYPE_WDS) |
-					 BIT(NL80211_IFTYPE_ADHOC);
-	ar->hw->flags |= IEEE80211_HW_RX_INCLUDES_FCS |
-			 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
-			 IEEE80211_HW_SIGNAL_DBM;
-
-	ar->hw->queues = __AR9170_NUM_TXQ;
-	ar->hw->extra_tx_headroom = 8;
-
-	ar->hw->max_rates = 1;
-	ar->hw->max_rate_tries = 3;
-
-	for (i = 0; i < ARRAY_SIZE(ar->noise); i++)
-		ar->noise[i] = -95; /* ATH_DEFAULT_NOISE_FLOOR */
-
-	return ar;
-
-err_nomem:
-	kfree_skb(skb);
-	return ERR_PTR(-ENOMEM);
-}
-
-static int ar9170_read_eeprom(struct ar9170 *ar)
-{
-#define RW	8	/* number of words to read at once */
-#define RB	(sizeof(u32) * RW)
-	struct ath_regulatory *regulatory = &ar->common.regulatory;
-	u8 *eeprom = (void *)&ar->eeprom;
-	u8 *addr = ar->eeprom.mac_address;
-	__le32 offsets[RW];
-	unsigned int rx_streams, tx_streams, tx_params = 0;
-	int i, j, err, bands = 0;
-
-	BUILD_BUG_ON(sizeof(ar->eeprom) & 3);
-
-	BUILD_BUG_ON(RB > AR9170_MAX_CMD_LEN - 4);
-#ifndef __CHECKER__
-	/* don't want to handle trailing remains */
-	BUILD_BUG_ON(sizeof(ar->eeprom) % RB);
-#endif
-
-	for (i = 0; i < sizeof(ar->eeprom)/RB; i++) {
-		for (j = 0; j < RW; j++)
-			offsets[j] = cpu_to_le32(AR9170_EEPROM_START +
-						 RB * i + 4 * j);
-
-		err = ar->exec_cmd(ar, AR9170_CMD_RREG,
-				   RB, (u8 *) &offsets,
-				   RB, eeprom + RB * i);
-		if (err)
-			return err;
-	}
-
-#undef RW
-#undef RB
-
-	if (ar->eeprom.length == cpu_to_le16(0xFFFF))
-		return -ENODATA;
-
-	if (ar->eeprom.operating_flags & AR9170_OPFLAG_2GHZ) {
-		ar->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &ar9170_band_2GHz;
-		bands++;
-	}
-	if (ar->eeprom.operating_flags & AR9170_OPFLAG_5GHZ) {
-		ar->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &ar9170_band_5GHz;
-		bands++;
-	}
-
-	rx_streams = hweight8(ar->eeprom.rx_mask);
-	tx_streams = hweight8(ar->eeprom.tx_mask);
-
-	if (rx_streams != tx_streams)
-		tx_params = IEEE80211_HT_MCS_TX_RX_DIFF;
-
-	if (tx_streams >= 1 && tx_streams <= IEEE80211_HT_MCS_TX_MAX_STREAMS)
-		tx_params = (tx_streams - 1) <<
-			    IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
-
-	ar9170_band_2GHz.ht_cap.mcs.tx_params |= tx_params;
-	ar9170_band_5GHz.ht_cap.mcs.tx_params |= tx_params;
-
-	/*
-	 * I measured this, a bandswitch takes roughly
-	 * 135 ms and a frequency switch about 80.
-	 *
-	 * FIXME: measure these values again once EEPROM settings
-	 *	  are used, that will influence them!
-	 */
-	if (bands == 2)
-		ar->hw->channel_change_time = 135 * 1000;
-	else
-		ar->hw->channel_change_time = 80 * 1000;
-
-	regulatory->current_rd = le16_to_cpu(ar->eeprom.reg_domain[0]);
-	regulatory->current_rd_ext = le16_to_cpu(ar->eeprom.reg_domain[1]);
-
-	/* second part of wiphy init */
-	SET_IEEE80211_PERM_ADDR(ar->hw, addr);
-
-	return bands ? 0 : -EINVAL;
-}
-
-static int ar9170_reg_notifier(struct wiphy *wiphy,
-			struct regulatory_request *request)
-{
-	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
-	struct ar9170 *ar = hw->priv;
-
-	return ath_reg_notifier_apply(wiphy, request, &ar->common.regulatory);
-}
-
-int ar9170_register(struct ar9170 *ar, struct device *pdev)
-{
-	struct ath_regulatory *regulatory = &ar->common.regulatory;
-	int err;
-
-	/* try to read EEPROM, init MAC addr */
-	err = ar9170_read_eeprom(ar);
-	if (err)
-		goto err_out;
-
-	err = ath_regd_init(regulatory, ar->hw->wiphy,
-			    ar9170_reg_notifier);
-	if (err)
-		goto err_out;
-
-	err = ieee80211_register_hw(ar->hw);
-	if (err)
-		goto err_out;
-
-	if (!ath_is_world_regd(regulatory))
-		regulatory_hint(ar->hw->wiphy, regulatory->alpha2);
-
-	err = ar9170_init_leds(ar);
-	if (err)
-		goto err_unreg;
-
-#ifdef CONFIG_AR9170_LEDS
-	err = ar9170_register_leds(ar);
-	if (err)
-		goto err_unreg;
-#endif /* CONFIG_AR9170_LEDS */
-
-	dev_info(pdev, "Atheros AR9170 is registered as '%s'\n",
-		 wiphy_name(ar->hw->wiphy));
-
-	ar->registered = true;
-	return 0;
-
-err_unreg:
-	ieee80211_unregister_hw(ar->hw);
-
-err_out:
-	return err;
-}
-
-void ar9170_unregister(struct ar9170 *ar)
-{
-	if (ar->registered) {
-#ifdef CONFIG_AR9170_LEDS
-		ar9170_unregister_leds(ar);
-#endif /* CONFIG_AR9170_LEDS */
-
-	ieee80211_unregister_hw(ar->hw);
-	}
-
-	kfree_skb(ar->rx_failover);
-	mutex_destroy(&ar->mutex);
-}