1 files changed, 807 insertions, 353 deletions

diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c
index 827ca0384a4..1796b8c6c5b 100644
--- a/drivers/net/wireless/p54/p54common.c
+++ b/drivers/net/wireless/p54/p54common.c
@@ -1,12 +1,15 @@
-
 /*
  * Common code for mac80211 Prism54 drivers
  *
  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
  * Copyright (c) 2007, Christian Lamparter <chunkeey@web.de>
+ * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
  *
- * Based on the islsm (softmac prism54) driver, which is:
- * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
+ * Based on:
+ * - the islsm (softmac prism54) driver, which is:
+ *   Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
+ * - stlc45xx driver
+ *   Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -183,7 +186,7 @@ int p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw)
 			priv->headroom = desc->headroom;
 			priv->tailroom = desc->tailroom;
 			if (le32_to_cpu(bootrec->len) == 11)
-				priv->rx_mtu = le16_to_cpu(bootrec->rx_mtu);
+				priv->rx_mtu = le16_to_cpu(desc->rx_mtu);
 			else
 				priv->rx_mtu = (size_t)
 					0x620 - priv->tx_hdr_len;
@@ -211,12 +214,17 @@ int p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw)
 		printk(KERN_INFO "p54: FW rev %s - Softmac protocol %x.%x\n",
 			fw_version, priv->fw_var >> 8, priv->fw_var & 0xff);
 
+	if (priv->fw_var < 0x500)
+		printk(KERN_INFO "p54: you are using an obsolete firmware. "
+		       "visit http://wireless.kernel.org/en/users/Drivers/p54 "
+		       "and grab one for \"kernel >= 2.6.28\"!\n");
+
 	if (priv->fw_var >= 0x300) {
 		/* Firmware supports QoS, use it! */
-		priv->tx_stats[4].limit = 3;
-		priv->tx_stats[5].limit = 4;
-		priv->tx_stats[6].limit = 3;
-		priv->tx_stats[7].limit = 1;
+		priv->tx_stats[4].limit = 3;		/* AC_VO */
+		priv->tx_stats[5].limit = 4;		/* AC_VI */
+		priv->tx_stats[6].limit = 3;		/* AC_BE */
+		priv->tx_stats[7].limit = 2;		/* AC_BK */
 		dev->queues = 4;
 	}
 
@@ -320,7 +328,6 @@ static int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
 	int err;
 	u8 *end = (u8 *)eeprom + len;
 	u16 synth = 0;
-	DECLARE_MAC_BUF(mac);
 
 	wrap = (struct eeprom_pda_wrap *) eeprom;
 	entry = (void *)wrap->data + le16_to_cpu(wrap->len);
@@ -413,6 +420,30 @@ static int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
 			/* make it overrun */
 			entry_len = len;
 			break;
+		case PDR_MANUFACTURING_PART_NUMBER:
+		case PDR_PDA_VERSION:
+		case PDR_NIC_SERIAL_NUMBER:
+		case PDR_REGULATORY_DOMAIN_LIST:
+		case PDR_TEMPERATURE_TYPE:
+		case PDR_PRISM_PCI_IDENTIFIER:
+		case PDR_COUNTRY_INFORMATION:
+		case PDR_OEM_NAME:
+		case PDR_PRODUCT_NAME:
+		case PDR_UTF8_OEM_NAME:
+		case PDR_UTF8_PRODUCT_NAME:
+		case PDR_COUNTRY_LIST:
+		case PDR_DEFAULT_COUNTRY:
+		case PDR_ANTENNA_GAIN:
+		case PDR_PRISM_INDIGO_PA_CALIBRATION_DATA:
+		case PDR_RSSI_LINEAR_APPROXIMATION:
+		case PDR_RSSI_LINEAR_APPROXIMATION_DUAL_BAND:
+		case PDR_REGULATORY_POWER_LIMITS:
+		case PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED:
+		case PDR_RADIATED_TRANSMISSION_CORRECTION:
+		case PDR_PRISM_TX_IQ_CALIBRATION:
+		case PDR_BASEBAND_REGISTERS:
+		case PDR_PER_CHANNEL_BASEBAND_REGISTERS:
+			break;
 		default:
 			printk(KERN_INFO "p54: unknown eeprom code : 0x%x\n",
 				le16_to_cpu(entry->code));
@@ -429,12 +460,12 @@ static int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
 		goto err;
 	}
 
-	priv->rxhw = synth & 0x07;
+	priv->rxhw = synth & PDR_SYNTH_FRONTEND_MASK;
 	if (priv->rxhw == 4)
 		p54_init_xbow_synth(dev);
-	if (!(synth & 0x40))
+	if (!(synth & PDR_SYNTH_24_GHZ_DISABLED))
 		dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &band_2GHz;
-	if (!(synth & 0x80))
+	if (!(synth & PDR_SYNTH_5_GHZ_DISABLED))
 		dev->wiphy->bands[IEEE80211_BAND_5GHZ] = &band_5GHz;
 
 	if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
@@ -446,9 +477,9 @@ static int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
 		SET_IEEE80211_PERM_ADDR(dev, perm_addr);
 	}
 
-	printk(KERN_INFO "%s: hwaddr %s, MAC:isl38%02x RF:%s\n",
+	printk(KERN_INFO "%s: hwaddr %pM, MAC:isl38%02x RF:%s\n",
 		wiphy_name(dev->wiphy),
-		print_mac(mac, dev->wiphy->perm_addr),
+		dev->wiphy->perm_addr,
 		priv->version, p54_rf_chips[priv->rxhw]);
 
 	return 0;
@@ -482,13 +513,13 @@ static int p54_rssi_to_dbm(struct ieee80211_hw *dev, int rssi)
 static int p54_rx_data(struct ieee80211_hw *dev, struct sk_buff *skb)
 {
 	struct p54_common *priv = dev->priv;
-	struct p54_rx_hdr *hdr = (struct p54_rx_hdr *) skb->data;
+	struct p54_rx_data *hdr = (struct p54_rx_data *) skb->data;
 	struct ieee80211_rx_status rx_status = {0};
 	u16 freq = le16_to_cpu(hdr->freq);
 	size_t header_len = sizeof(*hdr);
 	u32 tsf32;
 
-	if (!(hdr->magic & cpu_to_le16(0x0001))) {
+	if (!(hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_IN_FCS_GOOD))) {
 		if (priv->filter_flags & FIF_FCSFAIL)
 			rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
 		else
@@ -513,7 +544,7 @@ static int p54_rx_data(struct ieee80211_hw *dev, struct sk_buff *skb)
 
 	rx_status.flag |= RX_FLAG_TSFT;
 
-	if (hdr->magic & cpu_to_le16(0x4000))
+	if (hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_ALIGN))
 		header_len += hdr->align[0];
 
 	skb_pull(skb, header_len);
@@ -529,81 +560,155 @@ static void inline p54_wake_free_queues(struct ieee80211_hw *dev)
 	struct p54_common *priv = dev->priv;
 	int i;
 
+	if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
+		return ;
+
 	for (i = 0; i < dev->queues; i++)
 		if (priv->tx_stats[i + 4].len < priv->tx_stats[i + 4].limit)
 			ieee80211_wake_queue(dev, i);
 }
 
+void p54_free_skb(struct ieee80211_hw *dev, struct sk_buff *skb)
+{
+	struct p54_common *priv = dev->priv;
+	struct ieee80211_tx_info *info;
+	struct memrecord *range;
+	unsigned long flags;
+	u32 freed = 0, last_addr = priv->rx_start;
+
+	if (!skb || !dev)
+		return;
+
+	spin_lock_irqsave(&priv->tx_queue.lock, flags);
+	info = IEEE80211_SKB_CB(skb);
+	range = (void *)info->rate_driver_data;
+	if (skb->prev != (struct sk_buff *)&priv->tx_queue) {
+		struct ieee80211_tx_info *ni;
+		struct memrecord *mr;
+
+		ni = IEEE80211_SKB_CB(skb->prev);
+		mr = (struct memrecord *)ni->rate_driver_data;
+		last_addr = mr->end_addr;
+	}
+	if (skb->next != (struct sk_buff *)&priv->tx_queue) {
+		struct ieee80211_tx_info *ni;
+		struct memrecord *mr;
+
+		ni = IEEE80211_SKB_CB(skb->next);
+		mr = (struct memrecord *)ni->rate_driver_data;
+		freed = mr->start_addr - last_addr;
+	} else
+		freed = priv->rx_end - last_addr;
+	__skb_unlink(skb, &priv->tx_queue);
+	spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
+	kfree_skb(skb);
+
+	if (freed >= priv->headroom + sizeof(struct p54_hdr) + 48 +
+		     IEEE80211_MAX_RTS_THRESHOLD + priv->tailroom)
+		p54_wake_free_queues(dev);
+}
+EXPORT_SYMBOL_GPL(p54_free_skb);
+
 static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb)
 {
 	struct p54_common *priv = dev->priv;
-	struct p54_control_hdr *hdr = (struct p54_control_hdr *) skb->data;
-	struct p54_frame_sent_hdr *payload = (struct p54_frame_sent_hdr *) hdr->data;
+	struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
+	struct p54_frame_sent *payload = (struct p54_frame_sent *) hdr->data;
 	struct sk_buff *entry = (struct sk_buff *) priv->tx_queue.next;
 	u32 addr = le32_to_cpu(hdr->req_id) - priv->headroom;
 	struct memrecord *range = NULL;
 	u32 freed = 0;
 	u32 last_addr = priv->rx_start;
 	unsigned long flags;
+	int count, idx;
 
 	spin_lock_irqsave(&priv->tx_queue.lock, flags);
 	while (entry != (struct sk_buff *)&priv->tx_queue) {
 		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry);
-		range = (void *)info->driver_data;
-		if (range->start_addr == addr) {
-			struct p54_control_hdr *entry_hdr;
-			struct p54_tx_control_allocdata *entry_data;
-			int pad = 0;
-
-			if (entry->next != (struct sk_buff *)&priv->tx_queue) {
-				struct ieee80211_tx_info *ni;
-				struct memrecord *mr;
-
-				ni = IEEE80211_SKB_CB(entry->next);
-				mr = (struct memrecord *)ni->driver_data;
-				freed = mr->start_addr - last_addr;
-			} else
-				freed = priv->rx_end - last_addr;
+		struct p54_hdr *entry_hdr;
+		struct p54_tx_data *entry_data;
+		int pad = 0;
 
+		range = (void *)info->rate_driver_data;
+		if (range->start_addr != addr) {
 			last_addr = range->end_addr;
-			__skb_unlink(entry, &priv->tx_queue);
-			spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
-
-			memset(&info->status, 0, sizeof(info->status));
-			entry_hdr = (struct p54_control_hdr *) entry->data;
-			entry_data = (struct p54_tx_control_allocdata *) entry_hdr->data;
-			if ((entry_hdr->magic1 & cpu_to_le16(0x4000)) != 0)
-				pad = entry_data->align[0];
-
-			priv->tx_stats[entry_data->hw_queue].len--;
-			if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
-				if (!(payload->status & 0x01))
-					info->flags |= IEEE80211_TX_STAT_ACK;
-				else
-					info->status.excessive_retries = 1;
-			}
-			info->status.retry_count = payload->retries - 1;
-			info->status.ack_signal = p54_rssi_to_dbm(dev,
-					le16_to_cpu(payload->ack_rssi));
-			skb_pull(entry, sizeof(*hdr) + pad + sizeof(*entry_data));
-			ieee80211_tx_status_irqsafe(dev, entry);
-			goto out;
+			entry = entry->next;
+			continue;
+		}
+
+		if (entry->next != (struct sk_buff *)&priv->tx_queue) {
+			struct ieee80211_tx_info *ni;
+			struct memrecord *mr;
+
+			ni = IEEE80211_SKB_CB(entry->next);
+			mr = (struct memrecord *)ni->rate_driver_data;
+			freed = mr->start_addr - last_addr;
 		} else
-			last_addr = range->end_addr;
-		entry = entry->next;
+			freed = priv->rx_end - last_addr;
+
+		last_addr = range->end_addr;
+		__skb_unlink(entry, &priv->tx_queue);
+		spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
+
+		if (unlikely(entry == priv->cached_beacon)) {
+			kfree_skb(entry);
+			priv->cached_beacon = NULL;
+			goto out;
+		}
+
+		/*
+		 * Clear manually, ieee80211_tx_info_clear_status would
+		 * clear the counts too and we need them.
+		 */
+		memset(&info->status.ampdu_ack_len, 0,
+		       sizeof(struct ieee80211_tx_info) -
+		       offsetof(struct ieee80211_tx_info, status.ampdu_ack_len));
+		BUILD_BUG_ON(offsetof(struct ieee80211_tx_info,
+				      status.ampdu_ack_len) != 23);
+
+		entry_hdr = (struct p54_hdr *) entry->data;
+		entry_data = (struct p54_tx_data *) entry_hdr->data;
+		if (entry_hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_ALIGN))
+			pad = entry_data->align[0];
+
+		/* walk through the rates array and adjust the counts */
+		count = payload->tries;
+		for (idx = 0; idx < 4; idx++) {
+			if (count >= info->status.rates[idx].count) {
+				count -= info->status.rates[idx].count;
+			} else if (count > 0) {
+				info->status.rates[idx].count = count;
+				count = 0;
+			} else {
+				info->status.rates[idx].idx = -1;
+				info->status.rates[idx].count = 0;
+			}
+		}
+
+		priv->tx_stats[entry_data->hw_queue].len--;
+		if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
+		     (!payload->status))
+			info->flags |= IEEE80211_TX_STAT_ACK;
+		if (payload->status & P54_TX_PSM_CANCELLED)
+			info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
+		info->status.ack_signal = p54_rssi_to_dbm(dev,
+				(int)payload->ack_rssi);
+		skb_pull(entry, sizeof(*hdr) + pad + sizeof(*entry_data));
+		ieee80211_tx_status_irqsafe(dev, entry);
+		goto out;
 	}
 	spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
 
 out:
-	if (freed >= IEEE80211_MAX_RTS_THRESHOLD + 0x170 +
-	    sizeof(struct p54_control_hdr))
+	if (freed >= priv->headroom + sizeof(struct p54_hdr) + 48 +
+		     IEEE80211_MAX_RTS_THRESHOLD + priv->tailroom)
 		p54_wake_free_queues(dev);
 }
 
 static void p54_rx_eeprom_readback(struct ieee80211_hw *dev,
 				   struct sk_buff *skb)
 {
-	struct p54_control_hdr *hdr = (struct p54_control_hdr *) skb->data;
+	struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
 	struct p54_eeprom_lm86 *eeprom = (struct p54_eeprom_lm86 *) hdr->data;
 	struct p54_common *priv = dev->priv;
 
@@ -618,7 +723,7 @@ static void p54_rx_eeprom_readback(struct ieee80211_hw *dev,
 static void p54_rx_stats(struct ieee80211_hw *dev, struct sk_buff *skb)
 {
 	struct p54_common *priv = dev->priv;
-	struct p54_control_hdr *hdr = (struct p54_control_hdr *) skb->data;
+	struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
 	struct p54_statistics *stats = (struct p54_statistics *) hdr->data;
 	u32 tsf32 = le32_to_cpu(stats->tsf32);
 
@@ -636,14 +741,46 @@ static void p54_rx_stats(struct ieee80211_hw *dev, struct sk_buff *skb)
 	mod_timer(&priv->stats_timer, jiffies + 5 * HZ);
 }
 
+static void p54_rx_trap(struct ieee80211_hw *dev, struct sk_buff *skb)
+{
+	struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
+	struct p54_trap *trap = (struct p54_trap *) hdr->data;
+	u16 event = le16_to_cpu(trap->event);
+	u16 freq = le16_to_cpu(trap->frequency);
+
+	switch (event) {
+	case P54_TRAP_BEACON_TX:
+		break;
+	case P54_TRAP_RADAR:
+		printk(KERN_INFO "%s: radar (freq:%d MHz)\n",
+			wiphy_name(dev->wiphy), freq);
+		break;
+	case P54_TRAP_NO_BEACON:
+		break;
+	case P54_TRAP_SCAN:
+		break;
+	case P54_TRAP_TBTT:
+		break;
+	case P54_TRAP_TIMER:
+		break;
+	default:
+		printk(KERN_INFO "%s: received event:%x freq:%d\n",
+		       wiphy_name(dev->wiphy), event, freq);
+		break;
+	}
+}
+
 static int p54_rx_control(struct ieee80211_hw *dev, struct sk_buff *skb)
 {
-	struct p54_control_hdr *hdr = (struct p54_control_hdr *) skb->data;
+	struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
 
 	switch (le16_to_cpu(hdr->type)) {
 	case P54_CONTROL_TYPE_TXDONE:
 		p54_rx_frame_sent(dev, skb);
 		break;
+	case P54_CONTROL_TYPE_TRAP:
+		p54_rx_trap(dev, skb);
+		break;
 	case P54_CONTROL_TYPE_BBP:
 		break;
 	case P54_CONTROL_TYPE_STAT_READBACK:
@@ -664,9 +801,9 @@ static int p54_rx_control(struct ieee80211_hw *dev, struct sk_buff *skb)
 /* returns zero if skb can be reused */
 int p54_rx(struct ieee80211_hw *dev, struct sk_buff *skb)
 {
-	u8 type = le16_to_cpu(*((__le16 *)skb->data)) >> 8;
+	u16 type = le16_to_cpu(*((__le16 *)skb->data));
 
-	if (type == 0x80)
+	if (type & P54_HDR_FLAG_CONTROL)
 		return p54_rx_control(dev, skb);
 	else
 		return p54_rx_data(dev, skb);
@@ -682,12 +819,14 @@ EXPORT_SYMBOL_GPL(p54_rx);
  * marks allocated areas as reserved if necessary. p54_rx_frame_sent frees
  * allocated areas.
  */
-static void p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb,
-			       struct p54_control_hdr *data, u32 len)
+static int p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb,
+			       struct p54_hdr *data, u32 len)
 {
 	struct p54_common *priv = dev->priv;
 	struct sk_buff *entry = priv->tx_queue.next;
 	struct sk_buff *target_skb = NULL;
+	struct ieee80211_tx_info *info;
+	struct memrecord *range;
 	u32 last_addr = priv->rx_start;
 	u32 largest_hole = 0;
 	u32 target_addr = priv->rx_start;
@@ -695,12 +834,15 @@ static void p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb,
 	unsigned int left;
 	len = (len + priv->headroom + priv->tailroom + 3) & ~0x3;
 
+	if (!skb)
+		return -EINVAL;
+
 	spin_lock_irqsave(&priv->tx_queue.lock, flags);
 	left = skb_queue_len(&priv->tx_queue);
 	while (left--) {
 		u32 hole_size;
-		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry);
-		struct memrecord *range = (void *)info->driver_data;
+		info = IEEE80211_SKB_CB(entry);
+		range = (void *)info->rate_driver_data;
 		hole_size = range->start_addr - last_addr;
 		if (!target_skb && hole_size >= len) {
 			target_skb = entry->prev;
@@ -715,64 +857,89 @@ static void p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb,
 		target_skb = priv->tx_queue.prev;
 		largest_hole = max(largest_hole, priv->rx_end - last_addr - len);
 		if (!skb_queue_empty(&priv->tx_queue)) {
-			struct ieee80211_tx_info *info = IEEE80211_SKB_CB(target_skb);
-			struct memrecord *range = (void *)info->driver_data;
+			info = IEEE80211_SKB_CB(target_skb);
+			range = (void *)info->rate_driver_data;
 			target_addr = range->end_addr;
 		}
 	} else
 		largest_hole = max(largest_hole, priv->rx_end - last_addr);
 
-	if (skb) {
-		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-		struct memrecord *range = (void *)info->driver_data;
-		range->start_addr = target_addr;
-		range->end_addr = target_addr + len;
-		__skb_queue_after(&priv->tx_queue, target_skb, skb);
-		if (largest_hole < priv->rx_mtu + priv->headroom +
-				   priv->tailroom +
-				   sizeof(struct p54_control_hdr))
-			ieee80211_stop_queues(dev);
+	if (!target_skb) {
+		spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
+		ieee80211_stop_queues(dev);
+		return -ENOMEM;
 	}
+
+	info = IEEE80211_SKB_CB(skb);
+	range = (void *)info->rate_driver_data;
+	range->start_addr = target_addr;
+	range->end_addr = target_addr + len;
+	__skb_queue_after(&priv->tx_queue, target_skb, skb);
 	spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
 
+	if (largest_hole < priv->headroom + sizeof(struct p54_hdr) +
+			   48 + IEEE80211_MAX_RTS_THRESHOLD + priv->tailroom)
+		ieee80211_stop_queues(dev);
+
 	data->req_id = cpu_to_le32(target_addr + priv->headroom);
+	return 0;
+}
+
+static struct sk_buff *p54_alloc_skb(struct ieee80211_hw *dev,
+		u16 hdr_flags, u16 len, u16 type, gfp_t memflags)
+{
+	struct p54_common *priv = dev->priv;
+	struct p54_hdr *hdr;
+	struct sk_buff *skb;
+
+	skb = __dev_alloc_skb(len + priv->tx_hdr_len, memflags);
+	if (!skb)
+		return NULL;
+	skb_reserve(skb, priv->tx_hdr_len);
+
+	hdr = (struct p54_hdr *) skb_put(skb, sizeof(*hdr));
+	hdr->flags = cpu_to_le16(hdr_flags);
+	hdr->len = cpu_to_le16(len - sizeof(*hdr));
+	hdr->type = cpu_to_le16(type);
+	hdr->tries = hdr->rts_tries = 0;
+
+	if (unlikely(p54_assign_address(dev, skb, hdr, len))) {
+		kfree_skb(skb);
+		return NULL;
+	}
+	return skb;
 }
 
 int p54_read_eeprom(struct ieee80211_hw *dev)
 {
 	struct p54_common *priv = dev->priv;
-	struct p54_control_hdr *hdr = NULL;
+	struct p54_hdr *hdr = NULL;
 	struct p54_eeprom_lm86 *eeprom_hdr;
+	struct sk_buff *skb;
 	size_t eeprom_size = 0x2020, offset = 0, blocksize;
 	int ret = -ENOMEM;
 	void *eeprom = NULL;
 
-	hdr = (struct p54_control_hdr *)kzalloc(sizeof(*hdr) +
-		sizeof(*eeprom_hdr) + EEPROM_READBACK_LEN, GFP_KERNEL);
-	if (!hdr)
+	skb = p54_alloc_skb(dev, 0x8000, sizeof(*hdr) + sizeof(*eeprom_hdr) +
+			    EEPROM_READBACK_LEN,
+			    P54_CONTROL_TYPE_EEPROM_READBACK, GFP_KERNEL);
+	if (!skb)
 		goto free;
-
 	priv->eeprom = kzalloc(EEPROM_READBACK_LEN, GFP_KERNEL);
 	if (!priv->eeprom)
 		goto free;
-
 	eeprom = kzalloc(eeprom_size, GFP_KERNEL);
 	if (!eeprom)
 		goto free;
 
-	hdr->magic1 = cpu_to_le16(0x8000);
-	hdr->type = cpu_to_le16(P54_CONTROL_TYPE_EEPROM_READBACK);
-	hdr->retry1 = hdr->retry2 = 0;
-	eeprom_hdr = (struct p54_eeprom_lm86 *) hdr->data;
+	eeprom_hdr = (struct p54_eeprom_lm86 *) skb_put(skb,
+		     sizeof(*eeprom_hdr) + EEPROM_READBACK_LEN);
 
 	while (eeprom_size) {
 		blocksize = min(eeprom_size, (size_t)EEPROM_READBACK_LEN);
-		hdr->len = cpu_to_le16(blocksize + sizeof(*eeprom_hdr));
 		eeprom_hdr->offset = cpu_to_le16(offset);
 		eeprom_hdr->len = cpu_to_le16(blocksize);
-		p54_assign_address(dev, NULL, hdr, le16_to_cpu(hdr->len) +
-				   sizeof(*hdr));
-		priv->tx(dev, hdr, le16_to_cpu(hdr->len) + sizeof(*hdr), 0);
+		priv->tx(dev, skb, 0);
 
 		if (!wait_for_completion_interruptible_timeout(&priv->eeprom_comp, HZ)) {
 			printk(KERN_ERR "%s: device does not respond!\n",
@@ -790,165 +957,336 @@ int p54_read_eeprom(struct ieee80211_hw *dev)
 free:
 	kfree(priv->eeprom);
 	priv->eeprom = NULL;
-	kfree(hdr);
+	p54_free_skb(dev, skb);
 	kfree(eeprom);
 
 	return ret;
 }
 EXPORT_SYMBOL_GPL(p54_read_eeprom);
 
+static int p54_set_tim(struct ieee80211_hw *dev, struct ieee80211_sta *sta,
+		bool set)
+{
+	struct p54_common *priv = dev->priv;
+	struct sk_buff *skb;
+	struct p54_tim *tim;
+
+	skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET,
+		      sizeof(struct p54_hdr) + sizeof(*tim),
+		      P54_CONTROL_TYPE_TIM, GFP_KERNEL);
+	if (!skb)
+		return -ENOMEM;
+
+	tim = (struct p54_tim *) skb_put(skb, sizeof(*tim));
+	tim->count = 1;
+	tim->entry[0] = cpu_to_le16(set ? (sta->aid | 0x8000) : sta->aid);
+	priv->tx(dev, skb, 1);
+	return 0;
+}
+
+static int p54_sta_unlock(struct ieee80211_hw *dev, u8 *addr)
+{
+	struct p54_common *priv = dev->priv;
+	struct sk_buff *skb;
+	struct p54_sta_unlock *sta;
+
+	skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET,
+		sizeof(struct p54_hdr) + sizeof(*sta),
+		P54_CONTROL_TYPE_PSM_STA_UNLOCK, GFP_ATOMIC);
+	if (!skb)
+		return -ENOMEM;
+
+	sta = (struct p54_sta_unlock *)skb_put(skb, sizeof(*sta));
+	memcpy(sta->addr, addr, ETH_ALEN);
+	priv->tx(dev, skb, 1);
+	return 0;
+}
+
+static int p54_tx_cancel(struct ieee80211_hw *dev, struct sk_buff *entry)
+{
+	struct p54_common *priv = dev->priv;
+	struct sk_buff *skb;
+	struct p54_hdr *hdr;
+	struct p54_txcancel *cancel;
+
+	skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET,
+		sizeof(struct p54_hdr) + sizeof(*cancel),
+		P54_CONTROL_TYPE_TXCANCEL, GFP_ATOMIC);
+	if (!skb)
+		return -ENOMEM;
+
+	hdr = (void *)entry->data;
+	cancel = (struct p54_txcancel *)skb_put(skb, sizeof(*cancel));
+	cancel->req_id = hdr->req_id;
+	priv->tx(dev, skb, 1);
+	return 0;
+}
+
+static int p54_tx_fill(struct ieee80211_hw *dev, struct sk_buff *skb,
+		struct ieee80211_tx_info *info, u8 *queue, size_t *extra_len,
+		u16 *flags, u16 *aid)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	struct p54_common *priv = dev->priv;
+	int ret = 0;
+
+	if (unlikely(ieee80211_is_mgmt(hdr->frame_control))) {
+		if (ieee80211_is_beacon(hdr->frame_control)) {
+			*aid = 0;
+			*queue = 0;
+			*extra_len = IEEE80211_MAX_TIM_LEN;
+			*flags = P54_HDR_FLAG_DATA_OUT_TIMESTAMP;
+			return 0;
+		} else if (ieee80211_is_probe_resp(hdr->frame_control)) {
+			*aid = 0;
+			*queue = 2;
+			*flags = P54_HDR_FLAG_DATA_OUT_TIMESTAMP |
+				 P54_HDR_FLAG_DATA_OUT_NOCANCEL;
+			return 0;
+		} else {
+			*queue = 2;
+			ret = 0;
+		}
+	} else {
+		*queue += 4;
+		ret = 1;
+	}
+
+	switch (priv->mode) {
+	case NL80211_IFTYPE_STATION:
+		*aid = 1;
+		break;
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_ADHOC:
+		if (info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM) {
+			*aid = 0;
+			*queue = 3;
+			return 0;
+		}
+		if (info->control.sta)
+			*aid = info->control.sta->aid;
+		else
+			*flags = P54_HDR_FLAG_DATA_OUT_NOCANCEL;
+	}
+	return ret;
+}
+
 static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 {
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	struct ieee80211_tx_queue_stats *current_queue;
+	struct ieee80211_tx_queue_stats *current_queue = NULL;
 	struct p54_common *priv = dev->priv;
-	struct p54_control_hdr *hdr;
-	struct ieee80211_hdr *ieee80211hdr = (struct ieee80211_hdr *)skb->data;
-	struct p54_tx_control_allocdata *txhdr;
-	size_t padding, len;
-	u8 rate;
+	struct p54_hdr *hdr;
+	struct p54_tx_data *txhdr;
+	size_t padding, len, tim_len = 0;
+	int i, j, ridx;
+	u16 hdr_flags = 0, aid = 0;
+	u8 rate, queue;
 	u8 cts_rate = 0x20;
-
-	current_queue = &priv->tx_stats[skb_get_queue_mapping(skb) + 4];
-	if (unlikely(current_queue->len > current_queue->limit))
-		return NETDEV_TX_BUSY;
-	current_queue->len++;
-	current_queue->count++;
-	if (current_queue->len == current_queue->limit)
-		ieee80211_stop_queue(dev, skb_get_queue_mapping(skb));
+	u8 rc_flags;
+	u8 calculated_tries[4];
+	u8 nrates = 0, nremaining = 8;
+
+	queue = skb_get_queue_mapping(skb);
+
+	if (p54_tx_fill(dev, skb, info, &queue, &tim_len, &hdr_flags, &aid)) {
+		current_queue = &priv->tx_stats[queue];
+		if (unlikely(current_queue->len > current_queue->limit))
+			return NETDEV_TX_BUSY;
+		current_queue->len++;
+		current_queue->count++;
+		if (current_queue->len == current_queue->limit)
+			ieee80211_stop_queue(dev, skb_get_queue_mapping(skb));
+	}
 
 	padding = (unsigned long)(skb->data - (sizeof(*hdr) + sizeof(*txhdr))) & 3;
 	len = skb->len;
 
-	txhdr = (struct p54_tx_control_allocdata *)
-			skb_push(skb, sizeof(*txhdr) + padding);
-	hdr = (struct p54_control_hdr *) skb_push(skb, sizeof(*hdr));
+	if (info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT) {
+		if (info->control.sta)
+			if (p54_sta_unlock(dev, info->control.sta->addr)) {
+				if (current_queue) {
+					current_queue->len--;
+					current_queue->count--;
+				}
+				return NETDEV_TX_BUSY;
+			}
+	}
+
+	txhdr = (struct p54_tx_data *) skb_push(skb, sizeof(*txhdr) + padding);
+	hdr = (struct p54_hdr *) skb_push(skb, sizeof(*hdr));
 
 	if (padding)
-		hdr->magic1 = cpu_to_le16(0x4010);
-	else
-		hdr->magic1 = cpu_to_le16(0x0010);
+		hdr_flags |= P54_HDR_FLAG_DATA_ALIGN;
 	hdr->len = cpu_to_le16(len);
-	hdr->type = (info->flags & IEEE80211_TX_CTL_NO_ACK) ? 0 : cpu_to_le16(1);
-	hdr->retry1 = hdr->retry2 = info->control.retry_limit;
-
-	/* TODO: add support for alternate retry TX rates */
-	rate = ieee80211_get_tx_rate(dev, info)->hw_value;
-	if (info->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE) {
-		rate |= 0x10;
-		cts_rate |= 0x10;
+	hdr->type = cpu_to_le16(aid);
+	hdr->rts_tries = info->control.rates[0].count;
+
+	/*
+	 * we register the rates in perfect order, and
+	 * RTS/CTS won't happen on 5 GHz
+	 */
+	cts_rate = info->control.rts_cts_rate_idx;
+
+	memset(&txhdr->rateset, 0, sizeof(txhdr->rateset));
+
+	/* see how many rates got used */
+	for (i = 0; i < 4; i++) {
+		if (info->control.rates[i].idx < 0)
+			break;
+		nrates++;
+	}
+
+	/* limit tries to 8/nrates per rate */
+	for (i = 0; i < nrates; i++) {
+		/*
+		 * The magic expression here is equivalent to 8/nrates for
+		 * all values that matter, but avoids division and jumps.
+		 * Note that nrates can only take the values 1 through 4.
+		 */
+		calculated_tries[i] = min_t(int, ((15 >> nrates) | 1) + 1,
+						 info->control.rates[i].count);
+		nremaining -= calculated_tries[i];
 	}
-	if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) {
-		rate |= 0x40;
-		cts_rate |= ieee80211_get_rts_cts_rate(dev, info)->hw_value;
-	} else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) {
-		rate |= 0x20;
-		cts_rate |= ieee80211_get_rts_cts_rate(dev, info)->hw_value;
+
+	/* if there are tries left, distribute from back to front */
+	for (i = nrates - 1; nremaining > 0 && i >= 0; i--) {
+		int tmp = info->control.rates[i].count - calculated_tries[i];
+
+		if (tmp <= 0)
+			continue;
+		/* RC requested more tries at this rate */
+
+		tmp = min_t(int, tmp, nremaining);
+		calculated_tries[i] += tmp;
+		nremaining -= tmp;
 	}
-	memset(txhdr->rateset, rate, 8);
+
+	ridx = 0;
+	for (i = 0; i < nrates && ridx < 8; i++) {
+		/* we register the rates in perfect order */
+		rate = info->control.rates[i].idx;
+		if (info->band == IEEE80211_BAND_5GHZ)
+			rate += 4;
+
+		/* store the count we actually calculated for TX status */
+		info->control.rates[i].count = calculated_tries[i];
+
+		rc_flags = info->control.rates[i].flags;
+		if (rc_flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) {
+			rate |= 0x10;
+			cts_rate |= 0x10;
+		}
+		if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS)
+			rate |= 0x40;
+		else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
+			rate |= 0x20;
+		for (j = 0; j < calculated_tries[i] && ridx < 8; j++) {
+			txhdr->rateset[ridx] = rate;
+			ridx++;
+		}
+	}
+
+	if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ)
+		hdr_flags |= P54_HDR_FLAG_DATA_OUT_SEQNR;
+
+	/* TODO: enable bursting */
+	hdr->flags = cpu_to_le16(hdr_flags);
+	hdr->tries = ridx;
+	txhdr->crypt_offset = 0;
+	txhdr->rts_rate_idx = 0;
 	txhdr->key_type = 0;
 	txhdr->key_len = 0;
-	txhdr->hw_queue = skb_get_queue_mapping(skb) + 4;
+	txhdr->hw_queue = queue;
+	txhdr->backlog = 32;
+	memset(txhdr->durations, 0, sizeof(txhdr->durations));
 	txhdr->tx_antenna = (info->antenna_sel_tx == 0) ?
 		2 : info->antenna_sel_tx - 1;
 	txhdr->output_power = priv->output_power;
-	txhdr->cts_rate = (info->flags & IEEE80211_TX_CTL_NO_ACK) ?
-			  0 : cts_rate;
+	txhdr->cts_rate = cts_rate;
 	if (padding)
 		txhdr->align[0] = padding;
 
-	/* FIXME: The sequence that follows is needed for this driver to
-	 * work with mac80211 since "mac80211: fix TX sequence numbers".
-	 * As with the temporary code in rt2x00, changes will be needed
-	 * to get proper sequence numbers on beacons. In addition, this
-	 * patch places the sequence number in the hardware state, which
-	 * limits us to a single virtual state.
-	 */
-	if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
-		if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
-			priv->seqno += 0x10;
-		ieee80211hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
-		ieee80211hdr->seq_ctrl |= cpu_to_le16(priv->seqno);
-	}
 	/* modifies skb->cb and with it info, so must be last! */
-	p54_assign_address(dev, skb, hdr, skb->len);
-
-	priv->tx(dev, hdr, skb->len, 0);
+	if (unlikely(p54_assign_address(dev, skb, hdr, skb->len + tim_len))) {
+		skb_pull(skb, sizeof(*hdr) + sizeof(*txhdr) + padding);
+		if (current_queue) {
+			current_queue->len--;
+			current_queue->count--;
+		}
+		return NETDEV_TX_BUSY;
+	}
+	priv->tx(dev, skb, 0);
 	return 0;
 }
 
-static int p54_set_filter(struct ieee80211_hw *dev, u16 filter_type,
-			  const u8 *bssid)
+static int p54_setup_mac(struct ieee80211_hw *dev, u16 mode, const u8 *bssid)
 {
 	struct p54_common *priv = dev->priv;
-	struct p54_control_hdr *hdr;
-	struct p54_tx_control_filter *filter;
-	size_t data_len;
+	struct sk_buff *skb;
+	struct p54_setup_mac *setup;
 
-	hdr = kzalloc(sizeof(*hdr) + sizeof(*filter) +
-		      priv->tx_hdr_len, GFP_ATOMIC);
-	if (!hdr)
+	skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*setup) +
+			    sizeof(struct p54_hdr), P54_CONTROL_TYPE_SETUP,
+			    GFP_ATOMIC);
+	if (!skb)
 		return -ENOMEM;
 
-	hdr = (void *)hdr + priv->tx_hdr_len;
-
-	filter = (struct p54_tx_control_filter *) hdr->data;
-	hdr->magic1 = cpu_to_le16(0x8001);
-	hdr->type = cpu_to_le16(P54_CONTROL_TYPE_FILTER_SET);
-
-	priv->filter_type = filter->filter_type = cpu_to_le16(filter_type);
-	memcpy(filter->mac_addr, priv->mac_addr, ETH_ALEN);
+	setup = (struct p54_setup_mac *) skb_put(skb, sizeof(*setup));
+	priv->mac_mode = mode;
+	setup->mac_mode = cpu_to_le16(mode);
+	memcpy(setup->mac_addr, priv->mac_addr, ETH_ALEN);
 	if (!bssid)
-		memset(filter->bssid, ~0, ETH_ALEN);
+		memset(setup->bssid, ~0, ETH_ALEN);
 	else
-		memcpy(filter->bssid, bssid, ETH_ALEN);
-
-	filter->rx_antenna = priv->rx_antenna;
-
+		memcpy(setup->bssid, bssid, ETH_ALEN);
+	setup->rx_antenna = priv->rx_antenna;
+	setup->rx_align = 0;
 	if (priv->fw_var < 0x500) {
-		data_len = P54_TX_CONTROL_FILTER_V1_LEN;
-		filter->v1.basic_rate_mask = cpu_to_le32(0x15F);
-		filter->v1.rx_addr = cpu_to_le32(priv->rx_end);
-		filter->v1.max_rx = cpu_to_le16(priv->rx_mtu);
-		filter->v1.rxhw = cpu_to_le16(priv->rxhw);
-		filter->v1.wakeup_timer = cpu_to_le16(500);
+		setup->v1.basic_rate_mask = cpu_to_le32(0x15f);
+		memset(setup->v1.rts_rates, 0, 8);
+		setup->v1.rx_addr = cpu_to_le32(priv->rx_end);
+		setup->v1.max_rx = cpu_to_le16(priv->rx_mtu);
+		setup->v1.rxhw = cpu_to_le16(priv->rxhw);
+		setup->v1.wakeup_timer = cpu_to_le16(500);
+		setup->v1.unalloc0 = cpu_to_le16(0);
 	} else {
-		data_len = P54_TX_CONTROL_FILTER_V2_LEN;
-		filter->v2.rx_addr = cpu_to_le32(priv->rx_end);
-		filter->v2.max_rx = cpu_to_le16(priv->rx_mtu);
-		filter->v2.rxhw = cpu_to_le16(priv->rxhw);
-		filter->v2.timer = cpu_to_le16(1000);
+		setup->v2.rx_addr = cpu_to_le32(priv->rx_end);
+		setup->v2.max_rx = cpu_to_le16(priv->rx_mtu);
+		setup->v2.rxhw = cpu_to_le16(priv->rxhw);
+		setup->v2.timer = cpu_to_le16(1000);
+		setup->v2.truncate = cpu_to_le16(48896);
+		setup->v2.basic_rate_mask = cpu_to_le32(0x15f);
+		setup->v2.sbss_offset = 0;
+		setup->v2.mcast_window = 0;
+		setup->v2.rx_rssi_threshold = 0;
+		setup->v2.rx_ed_threshold = 0;
+		setup->v2.ref_clock = cpu_to_le32(644245094);
+		setup->v2.lpf_bandwidth = cpu_to_le16(65535);
+		setup->v2.osc_start_delay = cpu_to_le16(65535);
 	}
-
-	hdr->len = cpu_to_le16(data_len);
-	p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + data_len);
-	priv->tx(dev, hdr, sizeof(*hdr) + data_len, 1);
+	priv->tx(dev, skb, 1);
 	return 0;
 }
 
-static int p54_set_freq(struct ieee80211_hw *dev, __le16 freq)
+static int p54_set_freq(struct ieee80211_hw *dev, u16 frequency)
 {
 	struct p54_common *priv = dev->priv;
-	struct p54_control_hdr *hdr;
-	struct p54_tx_control_channel *chan;
+	struct sk_buff *skb;
+	struct p54_scan *chan;
 	unsigned int i;
-	size_t data_len;
 	void *entry;
+	__le16 freq = cpu_to_le16(frequency);
 
-	hdr = kzalloc(sizeof(*hdr) + sizeof(*chan) +
-		      priv->tx_hdr_len, GFP_KERNEL);
-	if (!hdr)
+	skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*chan) +
+			    sizeof(struct p54_hdr), P54_CONTROL_TYPE_SCAN,
+			    GFP_ATOMIC);
+	if (!skb)
 		return -ENOMEM;
 
-	hdr = (void *)hdr + priv->tx_hdr_len;
-
-	chan = (struct p54_tx_control_channel *) hdr->data;
-
-	hdr->magic1 = cpu_to_le16(0x8001);
-
-	hdr->type = cpu_to_le16(P54_CONTROL_TYPE_CHANNEL_CHANGE);
-
-	chan->flags = cpu_to_le16(0x1);
+	chan = (struct p54_scan *) skb_put(skb, sizeof(*chan));
+	memset(chan->padding1, 0, sizeof(chan->padding1));
+	chan->mode = cpu_to_le16(P54_SCAN_EXIT);
 	chan->dwell = cpu_to_le16(0x0);
 
 	for (i = 0; i < priv->iq_autocal_len; i++) {
@@ -990,61 +1328,50 @@ static int p54_set_freq(struct ieee80211_hw *dev, __le16 freq)
 		}
 
 		entry += sizeof(__le16);
-		chan->pa_points_per_curve =
-			min(priv->curve_data->points_per_channel, (u8) 8);
-
-		memcpy(chan->curve_data, entry, sizeof(*chan->curve_data) *
-		       chan->pa_points_per_curve);
+		chan->pa_points_per_curve = 8;
+		memset(chan->curve_data, 0, sizeof(*chan->curve_data));
+		memcpy(chan->curve_data, entry,
+		       sizeof(struct p54_pa_curve_data_sample) *
+		       min((u8)8, priv->curve_data->points_per_channel));
 		break;
 	}
 
 	if (priv->fw_var < 0x500) {
-		data_len = P54_TX_CONTROL_CHANNEL_V1_LEN;
 		chan->v1.rssical_mul = cpu_to_le16(130);
 		chan->v1.rssical_add = cpu_to_le16(0xfe70);
 	} else {
-		data_len = P54_TX_CONTROL_CHANNEL_V2_LEN;
 		chan->v2.rssical_mul = cpu_to_le16(130);
 		chan->v2.rssical_add = cpu_to_le16(0xfe70);
 		chan->v2.basic_rate_mask = cpu_to_le32(0x15f);
+		memset(chan->v2.rts_rates, 0, 8);
 	}
-
-	hdr->len = cpu_to_le16(data_len);
-	p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + data_len);
-	priv->tx(dev, hdr, sizeof(*hdr) + data_len, 1);
+	priv->tx(dev, skb, 1);
 	return 0;
 
  err:
 	printk(KERN_ERR "%s: frequency change failed\n", wiphy_name(dev->wiphy));
-	kfree(hdr);
+	kfree_skb(skb);
 	return -EINVAL;
 }
 
 static int p54_set_leds(struct ieee80211_hw *dev, int mode, int link, int act)
 {
 	struct p54_common *priv = dev->priv;
-	struct p54_control_hdr *hdr;
-	struct p54_tx_control_led *led;
+	struct sk_buff *skb;
+	struct p54_led *led;
 
-	hdr = kzalloc(sizeof(*hdr) + sizeof(*led) +
-		      priv->tx_hdr_len, GFP_KERNEL);
-	if (!hdr)
+	skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*led) +
+			sizeof(struct p54_hdr),	P54_CONTROL_TYPE_LED,
+			GFP_ATOMIC);
+	if (!skb)
 		return -ENOMEM;
 
-	hdr = (void *)hdr + priv->tx_hdr_len;
-	hdr->magic1 = cpu_to_le16(0x8001);
-	hdr->len = cpu_to_le16(sizeof(*led));
-	hdr->type = cpu_to_le16(P54_CONTROL_TYPE_LED);
-	p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + sizeof(*led));
-
-	led = (struct p54_tx_control_led *) hdr->data;
+	led = (struct p54_led *)skb_put(skb, sizeof(*led));
 	led->mode = cpu_to_le16(mode);
 	led->led_permanent = cpu_to_le16(link);
 	led->led_temporary = cpu_to_le16(act);
 	led->duration = cpu_to_le16(1000);
-
-	priv->tx(dev, hdr, sizeof(*hdr) + sizeof(*led), 1);
-
+	priv->tx(dev, skb, 1);
 	return 0;
 }
 
@@ -1056,88 +1383,152 @@ do {	 							\
 	queue.txop = cpu_to_le16(_txop);			\
 } while(0)
 
-static void p54_init_vdcf(struct ieee80211_hw *dev)
+static int p54_set_edcf(struct ieee80211_hw *dev)
 {
 	struct p54_common *priv = dev->priv;
-	struct p54_control_hdr *hdr;
-	struct p54_tx_control_vdcf *vdcf;
-
-	/* all USB V1 adapters need a extra headroom */
-	hdr = (void *)priv->cached_vdcf + priv->tx_hdr_len;
-	hdr->magic1 = cpu_to_le16(0x8001);
-	hdr->len = cpu_to_le16(sizeof(*vdcf));
-	hdr->type = cpu_to_le16(P54_CONTROL_TYPE_DCFINIT);
-	hdr->req_id = cpu_to_le32(priv->rx_start);
-
-	vdcf = (struct p54_tx_control_vdcf *) hdr->data;
-
-	P54_SET_QUEUE(vdcf->queue[0], 0x0002, 0x0003, 0x0007, 47);
-	P54_SET_QUEUE(vdcf->queue[1], 0x0002, 0x0007, 0x000f, 94);
-	P54_SET_QUEUE(vdcf->queue[2], 0x0003, 0x000f, 0x03ff, 0);
-	P54_SET_QUEUE(vdcf->queue[3], 0x0007, 0x000f, 0x03ff, 0);
+	struct sk_buff *skb;
+	struct p54_edcf *edcf;
+
+	skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*edcf) +
+			sizeof(struct p54_hdr), P54_CONTROL_TYPE_DCFINIT,
+			GFP_ATOMIC);
+	if (!skb)
+		return -ENOMEM;
+
+	edcf = (struct p54_edcf *)skb_put(skb, sizeof(*edcf));
+	if (priv->use_short_slot) {
+		edcf->slottime = 9;
+		edcf->sifs = 0x10;
+		edcf->eofpad = 0x00;
+	} else {
+		edcf->slottime = 20;
+		edcf->sifs = 0x0a;
+		edcf->eofpad = 0x06;
+	}
+	/* (see prism54/isl_oid.h for further details) */
+	edcf->frameburst = cpu_to_le16(0);
+	edcf->round_trip_delay = cpu_to_le16(0);
+	edcf->flags = 0;
+	memset(edcf->mapping, 0, sizeof(edcf->mapping));
+	memcpy(edcf->queue, priv->qos_params, sizeof(edcf->queue));
+	priv->tx(dev, skb, 1);
+	return 0;
 }
 
-static void p54_set_vdcf(struct ieee80211_hw *dev)
+static int p54_init_stats(struct ieee80211_hw *dev)
 {
 	struct p54_common *priv = dev->priv;
-	struct p54_control_hdr *hdr;
-	struct p54_tx_control_vdcf *vdcf;
 
-	hdr = (void *)priv->cached_vdcf + priv->tx_hdr_len;
+	priv->cached_stats = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL,
+			sizeof(struct p54_hdr) + sizeof(struct p54_statistics),
+			P54_CONTROL_TYPE_STAT_READBACK, GFP_KERNEL);
+	if (!priv->cached_stats)
+			return -ENOMEM;
+
+	mod_timer(&priv->stats_timer, jiffies + HZ);
+	return 0;
+}
 
-	p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + sizeof(*vdcf));
+static int p54_beacon_tim(struct sk_buff *skb)
+{
+	/*
+	 * the good excuse for this mess is ... the firmware.
+	 * The dummy TIM MUST be at the end of the beacon frame,
+	 * because it'll be overwritten!
+	 */
 
-	vdcf = (struct p54_tx_control_vdcf *) hdr->data;
+	struct ieee80211_mgmt *mgmt = (void *)skb->data;
+	u8 *pos, *end;
 
-	if (dev->conf.flags & IEEE80211_CONF_SHORT_SLOT_TIME) {
-		vdcf->slottime = 9;
-		vdcf->magic1 = 0x10;
-		vdcf->magic2 = 0x00;
-	} else {
-		vdcf->slottime = 20;
-		vdcf->magic1 = 0x0a;
-		vdcf->magic2 = 0x06;
+	if (skb->len <= sizeof(mgmt)) {
+		printk(KERN_ERR "p54: beacon is too short!\n");
+		return -EINVAL;
 	}
 
-	/* (see prism54/isl_oid.h for further details) */
-	vdcf->frameburst = cpu_to_le16(0);
+	pos = (u8 *)mgmt->u.beacon.variable;
+	end = skb->data + skb->len;
+	while (pos < end) {
+		if (pos + 2 + pos[1] > end) {
+			printk(KERN_ERR "p54: parsing beacon failed\n");
+			return -EINVAL;
+		}
+
+		if (pos[0] == WLAN_EID_TIM) {
+			u8 dtim_len = pos[1];
+			u8 dtim_period = pos[3];
+			u8 *next = pos + 2 + dtim_len;
+
+			if (dtim_len < 3) {
+				printk(KERN_ERR "p54: invalid dtim len!\n");
+				return -EINVAL;
+			}
+			memmove(pos, next, end - next);
 
-	priv->tx(dev, hdr, sizeof(*hdr) + sizeof(*vdcf), 0);
+			if (dtim_len > 3)
+				skb_trim(skb, skb->len - (dtim_len - 3));
+
+			pos = end - (dtim_len + 2);
+
+			/* add the dummy at the end */
+			pos[0] = WLAN_EID_TIM;
+			pos[1] = 3;
+			pos[2] = 0;
+			pos[3] = dtim_period;
+			pos[4] = 0;
+			return 0;
+		}
+		pos += 2 + pos[1];
+	}
+	return 0;
 }
 
-static int p54_start(struct ieee80211_hw *dev)
+static int p54_beacon_update(struct ieee80211_hw *dev,
+			struct ieee80211_vif *vif)
 {
 	struct p54_common *priv = dev->priv;
-	int err;
-
-	if (!priv->cached_vdcf) {
-		priv->cached_vdcf = kzalloc(sizeof(struct p54_tx_control_vdcf)+
-			priv->tx_hdr_len + sizeof(struct p54_control_hdr),
-			GFP_KERNEL);
+	struct sk_buff *beacon;
+	int ret;
 
-		if (!priv->cached_vdcf)
-			return -ENOMEM;
+	if (priv->cached_beacon) {
+		p54_tx_cancel(dev, priv->cached_beacon);
+		/* wait for the last beacon the be freed */
+		msleep(10);
 	}
 
-	if (!priv->cached_stats) {
-		priv->cached_stats = kzalloc(sizeof(struct p54_statistics) +
-			priv->tx_hdr_len + sizeof(struct p54_control_hdr),
-			GFP_KERNEL);
+	beacon = ieee80211_beacon_get(dev, vif);
+	if (!beacon)
+		return -ENOMEM;
+	ret = p54_beacon_tim(beacon);
+	if (ret)
+		return ret;
+	ret = p54_tx(dev, beacon);
+	if (ret)
+		return ret;
+	priv->cached_beacon = beacon;
+	priv->tsf_high32 = 0;
+	priv->tsf_low32 = 0;
 
-		if (!priv->cached_stats) {
-			kfree(priv->cached_vdcf);
-			priv->cached_vdcf = NULL;
-			return -ENOMEM;
-		}
-	}
+	return 0;
+}
 
+static int p54_start(struct ieee80211_hw *dev)
+{
+	struct p54_common *priv = dev->priv;
+	int err;
+
+	mutex_lock(&priv->conf_mutex);
 	err = priv->open(dev);
 	if (!err)
 		priv->mode = NL80211_IFTYPE_MONITOR;
+	P54_SET_QUEUE(priv->qos_params[0], 0x0002, 0x0003, 0x0007, 47);
+	P54_SET_QUEUE(priv->qos_params[1], 0x0002, 0x0007, 0x000f, 94);
+	P54_SET_QUEUE(priv->qos_params[2], 0x0003, 0x000f, 0x03ff, 0);
+	P54_SET_QUEUE(priv->qos_params[3], 0x0007, 0x000f, 0x03ff, 0);
+	err = p54_set_edcf(dev);
+	if (!err)
+		err = p54_init_stats(dev);
 
-	p54_init_vdcf(dev);
-
-	mod_timer(&priv->stats_timer, jiffies + HZ);
+	mutex_unlock(&priv->conf_mutex);
 	return err;
 }
 
@@ -1146,12 +1537,22 @@ static void p54_stop(struct ieee80211_hw *dev)
 	struct p54_common *priv = dev->priv;
 	struct sk_buff *skb;
 
+	mutex_lock(&priv->conf_mutex);
 	del_timer(&priv->stats_timer);
+	p54_free_skb(dev, priv->cached_stats);
+	priv->cached_stats = NULL;
+	if (priv->cached_beacon)
+		p54_tx_cancel(dev, priv->cached_beacon);
+
 	while ((skb = skb_dequeue(&priv->tx_queue)))
 		kfree_skb(skb);
+
+	kfree(priv->cached_beacon);
+	priv->cached_beacon = NULL;
 	priv->stop(dev);
 	priv->tsf_high32 = priv->tsf_low32 = 0;
 	priv->mode = NL80211_IFTYPE_UNSPECIFIED;
+	mutex_unlock(&priv->conf_mutex);
 }
 
 static int p54_add_interface(struct ieee80211_hw *dev,
@@ -1159,24 +1560,36 @@ static int p54_add_interface(struct ieee80211_hw *dev,
 {
 	struct p54_common *priv = dev->priv;
 
-	if (priv->mode != NL80211_IFTYPE_MONITOR)
+	mutex_lock(&priv->conf_mutex);
+	if (priv->mode != NL80211_IFTYPE_MONITOR) {
+		mutex_unlock(&priv->conf_mutex);
 		return -EOPNOTSUPP;
+	}
 
 	switch (conf->type) {
 	case NL80211_IFTYPE_STATION:
+	case NL80211_IFTYPE_ADHOC:
+	case NL80211_IFTYPE_AP:
 		priv->mode = conf->type;
 		break;
 	default:
+		mutex_unlock(&priv->conf_mutex);
 		return -EOPNOTSUPP;
 	}
 
 	memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
 
-	p54_set_filter(dev, 0, NULL);
+	p54_setup_mac(dev, P54_FILTER_TYPE_NONE, NULL);
 
 	switch (conf->type) {
 	case NL80211_IFTYPE_STATION:
-		p54_set_filter(dev, 1, NULL);
+		p54_setup_mac(dev, P54_FILTER_TYPE_STATION, NULL);
+		break;
+	case NL80211_IFTYPE_AP:
+		p54_setup_mac(dev, P54_FILTER_TYPE_AP, priv->mac_addr);
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		p54_setup_mac(dev, P54_FILTER_TYPE_IBSS, NULL);
 		break;
 	default:
 		BUG();	/* impossible */
@@ -1185,6 +1598,7 @@ static int p54_add_interface(struct ieee80211_hw *dev,
 
 	p54_set_leds(dev, 1, 0, 0);
 
+	mutex_unlock(&priv->conf_mutex);
 	return 0;
 }
 
@@ -1192,22 +1606,28 @@ static void p54_remove_interface(struct ieee80211_hw *dev,
 				 struct ieee80211_if_init_conf *conf)
 {
 	struct p54_common *priv = dev->priv;
+
+	mutex_lock(&priv->conf_mutex);
+	if (priv->cached_beacon)
+		p54_tx_cancel(dev, priv->cached_beacon);
+	p54_setup_mac(dev, P54_FILTER_TYPE_NONE, NULL);
 	priv->mode = NL80211_IFTYPE_MONITOR;
 	memset(priv->mac_addr, 0, ETH_ALEN);
-	p54_set_filter(dev, 0, NULL);
+	mutex_unlock(&priv->conf_mutex);
 }
 
-static int p54_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
+static int p54_config(struct ieee80211_hw *dev, u32 changed)
 {
 	int ret;
 	struct p54_common *priv = dev->priv;
+	struct ieee80211_conf *conf = &dev->conf;
 
 	mutex_lock(&priv->conf_mutex);
-	priv->rx_antenna = (conf->antenna_sel_rx == 0) ?
-		2 : conf->antenna_sel_tx - 1;
+	priv->rx_antenna = 2; /* automatic */
 	priv->output_power = conf->power_level << 2;
-	ret = p54_set_freq(dev, cpu_to_le16(conf->channel->center_freq));
-	p54_set_vdcf(dev);
+	ret = p54_set_freq(dev, conf->channel->center_freq);
+	if (!ret)
+		ret = p54_set_edcf(dev);
 	mutex_unlock(&priv->conf_mutex);
 	return ret;
 }
@@ -1217,13 +1637,41 @@ static int p54_config_interface(struct ieee80211_hw *dev,
 				struct ieee80211_if_conf *conf)
 {
 	struct p54_common *priv = dev->priv;
+	int ret = 0;
 
 	mutex_lock(&priv->conf_mutex);
-	p54_set_filter(dev, 0, conf->bssid);
-	p54_set_leds(dev, 1, !is_multicast_ether_addr(conf->bssid), 0);
-	memcpy(priv->bssid, conf->bssid, ETH_ALEN);
+	switch (priv->mode) {
+	case NL80211_IFTYPE_STATION:
+		ret = p54_setup_mac(dev, P54_FILTER_TYPE_STATION, conf->bssid);
+		if (ret)
+			goto out;
+		ret = p54_set_leds(dev, 1,
+				   !is_multicast_ether_addr(conf->bssid), 0);
+		if (ret)
+			goto out;
+		memcpy(priv->bssid, conf->bssid, ETH_ALEN);
+		break;
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_ADHOC:
+		memcpy(priv->bssid, conf->bssid, ETH_ALEN);
+		ret = p54_set_freq(dev, dev->conf.channel->center_freq);
+		if (ret)
+			goto out;
+		ret = p54_setup_mac(dev, priv->mac_mode, priv->bssid);
+		if (ret)
+			goto out;
+		if (conf->changed & IEEE80211_IFCC_BEACON) {
+			ret = p54_beacon_update(dev, vif);
+			if (ret)
+				goto out;
+			ret = p54_set_edcf(dev);
+			if (ret)
+				goto out;
+		}
+	}
+out:
 	mutex_unlock(&priv->conf_mutex);
-	return 0;
+	return ret;
 }
 
 static void p54_configure_filter(struct ieee80211_hw *dev,
@@ -1241,20 +1689,16 @@ static void p54_configure_filter(struct ieee80211_hw *dev,
 
 	if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
 		if (*total_flags & FIF_BCN_PRBRESP_PROMISC)
-			p54_set_filter(dev, le16_to_cpu(priv->filter_type),
-				 NULL);
+			p54_setup_mac(dev, priv->mac_mode, NULL);
 		else
-			p54_set_filter(dev, le16_to_cpu(priv->filter_type),
-				 priv->bssid);
+			p54_setup_mac(dev, priv->mac_mode, priv->bssid);
 	}
 
 	if (changed_flags & FIF_PROMISC_IN_BSS) {
 		if (*total_flags & FIF_PROMISC_IN_BSS)
-			p54_set_filter(dev, le16_to_cpu(priv->filter_type) |
-				0x8, NULL);
+			p54_setup_mac(dev, priv->mac_mode | 0x8, NULL);
 		else
-			p54_set_filter(dev, le16_to_cpu(priv->filter_type) &
-				~0x8, priv->bssid);
+			p54_setup_mac(dev, priv->mac_mode & ~0x8, priv->bssid);
 	}
 }
 
@@ -1262,46 +1706,39 @@ static int p54_conf_tx(struct ieee80211_hw *dev, u16 queue,
 		       const struct ieee80211_tx_queue_params *params)
 {
 	struct p54_common *priv = dev->priv;
-	struct p54_tx_control_vdcf *vdcf;
-
-	vdcf = (struct p54_tx_control_vdcf *)(((struct p54_control_hdr *)
-		((void *)priv->cached_vdcf + priv->tx_hdr_len))->data);
+	int ret;
 
+	mutex_lock(&priv->conf_mutex);
 	if ((params) && !(queue > 4)) {
-		P54_SET_QUEUE(vdcf->queue[queue], params->aifs,
+		P54_SET_QUEUE(priv->qos_params[queue], params->aifs,
 			params->cw_min, params->cw_max, params->txop);
 	} else
-		return -EINVAL;
-
-	p54_set_vdcf(dev);
-
-	return 0;
+		ret = -EINVAL;
+	if (!ret)
+		ret = p54_set_edcf(dev);
+	mutex_unlock(&priv->conf_mutex);
+	return ret;
 }
 
 static int p54_init_xbow_synth(struct ieee80211_hw *dev)
 {
 	struct p54_common *priv = dev->priv;
-	struct p54_control_hdr *hdr;
-	struct p54_tx_control_xbow_synth *xbow;
+	struct sk_buff *skb;
+	struct p54_xbow_synth *xbow;
 
-	hdr = kzalloc(sizeof(*hdr) + sizeof(*xbow) +
-		      priv->tx_hdr_len, GFP_KERNEL);
-	if (!hdr)
+	skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*xbow) +
+			    sizeof(struct p54_hdr),
+			    P54_CONTROL_TYPE_XBOW_SYNTH_CFG,
+			    GFP_KERNEL);
+	if (!skb)
 		return -ENOMEM;
 
-	hdr = (void *)hdr + priv->tx_hdr_len;
-	hdr->magic1 = cpu_to_le16(0x8001);
-	hdr->len = cpu_to_le16(sizeof(*xbow));
-	hdr->type = cpu_to_le16(P54_CONTROL_TYPE_XBOW_SYNTH_CFG);
-	p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + sizeof(*xbow));
-
-	xbow = (struct p54_tx_control_xbow_synth *) hdr->data;
+	xbow = (struct p54_xbow_synth *)skb_put(skb, sizeof(*xbow));
 	xbow->magic1 = cpu_to_le16(0x1);
 	xbow->magic2 = cpu_to_le16(0x2);
 	xbow->freq = cpu_to_le16(5390);
-
-	priv->tx(dev, hdr, sizeof(*hdr) + sizeof(*xbow), 1);
-
+	memset(xbow->padding, 0, sizeof(xbow->padding));
+	priv->tx(dev, skb, 1);
 	return 0;
 }
 
@@ -1309,18 +1746,10 @@ static void p54_statistics_timer(unsigned long data)
 {
 	struct ieee80211_hw *dev = (struct ieee80211_hw *) data;
 	struct p54_common *priv = dev->priv;
-	struct p54_control_hdr *hdr;
-	struct p54_statistics *stats;
 
 	BUG_ON(!priv->cached_stats);
 
-	hdr = (void *)priv->cached_stats + priv->tx_hdr_len;
-	hdr->magic1 = cpu_to_le16(0x8000);
-	hdr->len = cpu_to_le16(sizeof(*stats));
-	hdr->type = cpu_to_le16(P54_CONTROL_TYPE_STAT_READBACK);
-	p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + sizeof(*stats));
-
-	priv->tx(dev, hdr, sizeof(*hdr) + sizeof(*stats), 0);
+	priv->tx(dev, priv->cached_stats, 0);
 }
 
 static int p54_get_stats(struct ieee80211_hw *dev,
@@ -1352,14 +1781,29 @@ static int p54_get_tx_stats(struct ieee80211_hw *dev,
 	return 0;
 }
 
+static void p54_bss_info_changed(struct ieee80211_hw *dev,
+				 struct ieee80211_vif *vif,
+				 struct ieee80211_bss_conf *info,
+				 u32 changed)
+{
+	struct p54_common *priv = dev->priv;
+
+	if (changed & BSS_CHANGED_ERP_SLOT) {
+		priv->use_short_slot = info->use_short_slot;
+		p54_set_edcf(dev);
+	}
+}
+
 static const struct ieee80211_ops p54_ops = {
 	.tx			= p54_tx,
 	.start			= p54_start,
 	.stop			= p54_stop,
 	.add_interface		= p54_add_interface,
 	.remove_interface	= p54_remove_interface,
+	.set_tim		= p54_set_tim,
 	.config			= p54_config,
 	.config_interface	= p54_config_interface,
+	.bss_info_changed	= p54_bss_info_changed,
 	.configure_filter	= p54_configure_filter,
 	.conf_tx		= p54_conf_tx,
 	.get_stats		= p54_get_stats,
@@ -1378,24 +1822,34 @@ struct ieee80211_hw *p54_init_common(size_t priv_data_len)
 	priv = dev->priv;
 	priv->mode = NL80211_IFTYPE_UNSPECIFIED;
 	skb_queue_head_init(&priv->tx_queue);
-	dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | /* not sure */
-		     IEEE80211_HW_RX_INCLUDES_FCS |
+	dev->flags = IEEE80211_HW_RX_INCLUDES_FCS |
 		     IEEE80211_HW_SIGNAL_DBM |
 		     IEEE80211_HW_NOISE_DBM;
 
-	dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
+	dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION |
+					  NL80211_IFTYPE_ADHOC |
+					  NL80211_IFTYPE_AP);
 
 	dev->channel_change_time = 1000;	/* TODO: find actual value */
-
-	priv->tx_stats[0].limit = 1;
-	priv->tx_stats[1].limit = 1;
-	priv->tx_stats[2].limit = 1;
-	priv->tx_stats[3].limit = 1;
-	priv->tx_stats[4].limit = 5;
+	priv->tx_stats[0].limit = 1;		/* Beacon queue */
+	priv->tx_stats[1].limit = 1;		/* Probe queue for HW scan */
+	priv->tx_stats[2].limit = 3;		/* queue for MLMEs */
+	priv->tx_stats[3].limit = 3;		/* Broadcast / MC queue */
+	priv->tx_stats[4].limit = 5;		/* Data */
 	dev->queues = 1;
 	priv->noise = -94;
-	dev->extra_tx_headroom = sizeof(struct p54_control_hdr) + 4 +
-				 sizeof(struct p54_tx_control_allocdata);
+	/*
+	 * We support at most 8 tries no matter which rate they're at,
+	 * we cannot support max_rates * max_rate_tries as we set it
+	 * here, but setting it correctly to 4/2 or so would limit us
+	 * artificially if the RC algorithm wants just two rates, so
+	 * let's say 4/7, we'll redistribute it at TX time, see the
+	 * comments there.
+	 */
+	dev->max_rates = 4;
+	dev->max_rate_tries = 7;
+	dev->extra_tx_headroom = sizeof(struct p54_hdr) + 4 +
+				 sizeof(struct p54_tx_data);
 
 	mutex_init(&priv->conf_mutex);
 	init_completion(&priv->eeprom_comp);
@@ -1410,11 +1864,11 @@ EXPORT_SYMBOL_GPL(p54_init_common);
 void p54_free_common(struct ieee80211_hw *dev)
 {
 	struct p54_common *priv = dev->priv;
-	kfree(priv->cached_stats);
+	del_timer(&priv->stats_timer);
+	kfree_skb(priv->cached_stats);
 	kfree(priv->iq_autocal);
 	kfree(priv->output_limit);
 	kfree(priv->curve_data);
-	kfree(priv->cached_vdcf);
 }
 EXPORT_SYMBOL_GPL(p54_free_common);