[IWLWIFI]: add iwlwifi wireless drivers

This patch adds the mac80211 based wireless drivers for the Intel
PRO/Wireless 3945ABG/BG Network Connection and Intel Wireless WiFi
Link AGN (4965) adapters.

[ Move driver into it's own directory -DaveM ]

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8732 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
new file mode 100644
index 00000000000..474b6402040
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -0,0 +1,8732 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2003 - 2007 Intel Corporation. All rights reserved.
+ *
+ * Portions of this file are derived from the ipw3945 project, as well
+ * as portions of the ieee80211 subsystem header files.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * 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; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+/*
+ * NOTE:  This file (iwl-base.c) is used to build to multiple hardware targets
+ * by defining IWL to either 3945 or 4965.  The Makefile used when building
+ * the base targets will create base-3945.o and base-4965.o
+ *
+ * The eventual goal is to move as many of the #if IWL / #endif blocks out of
+ * this file and into the hardware specific implementation files (iwl-XXXX.c)
+ * and leave only the common (non #ifdef sprinkled) code in this file
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/wireless.h>
+#include <linux/firmware.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/if_arp.h>
+
+#include <net/ieee80211_radiotap.h>
+#include <net/mac80211.h>
+
+#include <asm/div64.h>
+
+#include "iwlwifi.h"
+#include "iwl-3945.h"
+#include "iwl-helpers.h"
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+u32 iwl_debug_level;
+#endif
+
+/******************************************************************************
+ *
+ * module boiler plate
+ *
+ ******************************************************************************/
+
+/* module parameters */
+int iwl_param_disable_hw_scan;
+int iwl_param_debug;
+int iwl_param_disable;      /* def: enable radio */
+int iwl_param_antenna;      /* def: 0 = both antennas (use diversity) */
+int iwl_param_hwcrypto;     /* def: using software encryption */
+int iwl_param_qos_enable = 1;
+int iwl_param_queues_num = IWL_MAX_NUM_QUEUES;
+
+/*
+ * module name, copyright, version, etc.
+ * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
+ */
+
+#define DRV_DESCRIPTION	\
+"Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux"
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+#define VD "d"
+#else
+#define VD
+#endif
+
+#ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT
+#define VS "s"
+#else
+#define VS
+#endif
+
+#define IWLWIFI_VERSION "0.1.15k" VD VS
+#define DRV_COPYRIGHT	"Copyright(c) 2003-2007 Intel Corporation"
+#define DRV_VERSION     IWLWIFI_VERSION
+
+/* Change firmware file name, using "-" and incrementing number,
+ *   *only* when uCode interface or architecture changes so that it
+ *   is not compatible with earlier drivers.
+ * This number will also appear in << 8 position of 1st dword of uCode file */
+#define IWL3945_UCODE_API "-1"
+
+MODULE_DESCRIPTION(DRV_DESCRIPTION);
+MODULE_VERSION(DRV_VERSION);
+MODULE_AUTHOR(DRV_COPYRIGHT);
+MODULE_LICENSE("GPL");
+
+__le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr)
+{
+	u16 fc = le16_to_cpu(hdr->frame_control);
+	int hdr_len = ieee80211_get_hdrlen(fc);
+
+	if ((fc & 0x00cc) == (IEEE80211_STYPE_QOS_DATA | IEEE80211_FTYPE_DATA))
+		return (__le16 *) ((u8 *) hdr + hdr_len - QOS_CONTROL_LEN);
+	return NULL;
+}
+
+static const struct ieee80211_hw_mode *iwl_get_hw_mode(
+		struct iwl_priv *priv, int mode)
+{
+	int i;
+
+	for (i = 0; i < 3; i++)
+		if (priv->modes[i].mode == mode)
+			return &priv->modes[i];
+
+	return NULL;
+}
+
+static int iwl_is_empty_essid(const char *essid, int essid_len)
+{
+	/* Single white space is for Linksys APs */
+	if (essid_len == 1 && essid[0] == ' ')
+		return 1;
+
+	/* Otherwise, if the entire essid is 0, we assume it is hidden */
+	while (essid_len) {
+		essid_len--;
+		if (essid[essid_len] != '\0')
+			return 0;
+	}
+
+	return 1;
+}
+
+static const char *iwl_escape_essid(const char *essid, u8 essid_len)
+{
+	static char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
+	const char *s = essid;
+	char *d = escaped;
+
+	if (iwl_is_empty_essid(essid, essid_len)) {
+		memcpy(escaped, "<hidden>", sizeof("<hidden>"));
+		return escaped;
+	}
+
+	essid_len = min(essid_len, (u8) IW_ESSID_MAX_SIZE);
+	while (essid_len--) {
+		if (*s == '\0') {
+			*d++ = '\\';
+			*d++ = '0';
+			s++;
+		} else
+			*d++ = *s++;
+	}
+	*d = '\0';
+	return escaped;
+}
+
+static void iwl_print_hex_dump(int level, void *p, u32 len)
+{
+#ifdef CONFIG_IWLWIFI_DEBUG
+	if (!(iwl_debug_level & level))
+		return;
+
+	print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 16, 1,
+			p, len, 1);
+#endif
+}
+
+/*************** DMA-QUEUE-GENERAL-FUNCTIONS  *****
+ * DMA services
+ *
+ * Theory of operation
+ *
+ * A queue is a circular buffers with 'Read' and 'Write' pointers.
+ * 2 empty entries always kept in the buffer to protect from overflow.
+ *
+ * For Tx queue, there are low mark and high mark limits. If, after queuing
+ * the packet for Tx, free space become < low mark, Tx queue stopped. When
+ * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
+ * Tx queue resumed.
+ *
+ * The IPW operates with six queues, one receive queue in the device's
+ * sram, one transmit queue for sending commands to the device firmware,
+ * and four transmit queues for data.
+ ***************************************************/
+
+static int iwl_queue_space(const struct iwl_queue *q)
+{
+	int s = q->last_used - q->first_empty;
+
+	if (q->last_used > q->first_empty)
+		s -= q->n_bd;
+
+	if (s <= 0)
+		s += q->n_window;
+	/* keep some reserve to not confuse empty and full situations */
+	s -= 2;
+	if (s < 0)
+		s = 0;
+	return s;
+}
+
+/* XXX: n_bd must be power-of-two size */
+static inline int iwl_queue_inc_wrap(int index, int n_bd)
+{
+	return ++index & (n_bd - 1);
+}
+
+/* XXX: n_bd must be power-of-two size */
+static inline int iwl_queue_dec_wrap(int index, int n_bd)
+{
+	return --index & (n_bd - 1);
+}
+
+static inline int x2_queue_used(const struct iwl_queue *q, int i)
+{
+	return q->first_empty > q->last_used ?
+		(i >= q->last_used && i < q->first_empty) :
+		!(i < q->last_used && i >= q->first_empty);
+}
+
+static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
+{
+	if (is_huge)
+		return q->n_window;
+
+	return index & (q->n_window - 1);
+}
+
+static int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
+			  int count, int slots_num, u32 id)
+{
+	q->n_bd = count;
+	q->n_window = slots_num;
+	q->id = id;
+
+	/* count must be power-of-two size, otherwise iwl_queue_inc_wrap
+	 * and iwl_queue_dec_wrap are broken. */
+	BUG_ON(!is_power_of_2(count));
+
+	/* slots_num must be power-of-two size, otherwise
+	 * get_cmd_index is broken. */
+	BUG_ON(!is_power_of_2(slots_num));
+
+	q->low_mark = q->n_window / 4;
+	if (q->low_mark < 4)
+		q->low_mark = 4;
+
+	q->high_mark = q->n_window / 8;
+	if (q->high_mark < 2)
+		q->high_mark = 2;
+
+	q->first_empty = q->last_used = 0;
+
+	return 0;
+}
+
+static int iwl_tx_queue_alloc(struct iwl_priv *priv,
+			      struct iwl_tx_queue *txq, u32 id)
+{
+	struct pci_dev *dev = priv->pci_dev;
+
+	if (id != IWL_CMD_QUEUE_NUM) {
+		txq->txb = kmalloc(sizeof(txq->txb[0]) *
+				   TFD_QUEUE_SIZE_MAX, GFP_KERNEL);
+		if (!txq->txb) {
+			IWL_ERROR("kmalloc for auxilary BD "
+				  "structures failed\n");
+			goto error;
+		}
+	} else
+		txq->txb = NULL;
+
+	txq->bd = pci_alloc_consistent(dev,
+			sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX,
+			&txq->q.dma_addr);
+
+	if (!txq->bd) {
+		IWL_ERROR("pci_alloc_consistent(%zd) failed\n",
+			  sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX);
+		goto error;
+	}
+	txq->q.id = id;
+
+	return 0;
+
+ error:
+	if (txq->txb) {
+		kfree(txq->txb);
+		txq->txb = NULL;
+	}
+
+	return -ENOMEM;
+}
+
+int iwl_tx_queue_init(struct iwl_priv *priv,
+		      struct iwl_tx_queue *txq, int slots_num, u32 txq_id)
+{
+	struct pci_dev *dev = priv->pci_dev;
+	int len;
+	int rc = 0;
+
+	/* alocate command space + one big command for scan since scan
+	 * command is very huge the system will not have two scan at the
+	 * same time */
+	len = sizeof(struct iwl_cmd) * slots_num;
+	if (txq_id == IWL_CMD_QUEUE_NUM)
+		len +=  IWL_MAX_SCAN_SIZE;
+	txq->cmd = pci_alloc_consistent(dev, len, &txq->dma_addr_cmd);
+	if (!txq->cmd)
+		return -ENOMEM;
+
+	rc = iwl_tx_queue_alloc(priv, txq, txq_id);
+	if (rc) {
+		pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd);
+
+		return -ENOMEM;
+	}
+	txq->need_update = 0;
+
+	/* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
+	 * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */
+	BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1));
+	iwl_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
+
+	iwl_hw_tx_queue_init(priv, txq);
+
+	return 0;
+}
+
+/**
+ * iwl_tx_queue_free - Deallocate DMA queue.
+ * @txq: Transmit queue to deallocate.
+ *
+ * Empty queue by removing and destroying all BD's.
+ * Free all buffers.  txq itself is not freed.
+ *
+ */
+void iwl_tx_queue_free(struct iwl_priv *priv, struct iwl_tx_queue *txq)
+{
+	struct iwl_queue *q = &txq->q;
+	struct pci_dev *dev = priv->pci_dev;
+	int len;
+
+	if (q->n_bd == 0)
+		return;
+
+	/* first, empty all BD's */
+	for (; q->first_empty != q->last_used;
+	     q->last_used = iwl_queue_inc_wrap(q->last_used, q->n_bd))
+		iwl_hw_txq_free_tfd(priv, txq);
+
+	len = sizeof(struct iwl_cmd) * q->n_window;
+	if (q->id == IWL_CMD_QUEUE_NUM)
+		len += IWL_MAX_SCAN_SIZE;
+
+	pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd);
+
+	/* free buffers belonging to queue itself */
+	if (txq->q.n_bd)
+		pci_free_consistent(dev, sizeof(struct iwl_tfd_frame) *
+				    txq->q.n_bd, txq->bd, txq->q.dma_addr);
+
+	if (txq->txb) {
+		kfree(txq->txb);
+		txq->txb = NULL;
+	}
+
+	/* 0 fill whole structure */
+	memset(txq, 0, sizeof(*txq));
+}
+
+const u8 BROADCAST_ADDR[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
+
+/*************** STATION TABLE MANAGEMENT ****
+ *
+ * NOTE:  This needs to be overhauled to better synchronize between
+ * how the iwl-4965.c is using iwl_hw_find_station vs. iwl-3945.c
+ *
+ * mac80211 should also be examined to determine if sta_info is duplicating
+ * the functionality provided here
+ */
+
+/**************************************************************/
+static u8 iwl_remove_station(struct iwl_priv *priv, const u8 *addr, int is_ap)
+{
+	int index = IWL_INVALID_STATION;
+	int i;
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->sta_lock, flags);
+
+	if (is_ap)
+		index = IWL_AP_ID;
+	else if (is_broadcast_ether_addr(addr))
+		index = priv->hw_setting.bcast_sta_id;
+	else
+		for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++)
+			if (priv->stations[i].used &&
+			    !compare_ether_addr(priv->stations[i].sta.sta.addr,
+						addr)) {
+				index = i;
+				break;
+			}
+
+	if (unlikely(index == IWL_INVALID_STATION))
+		goto out;
+
+	if (priv->stations[index].used) {
+		priv->stations[index].used = 0;
+		priv->num_stations--;
+	}
+
+	BUG_ON(priv->num_stations < 0);
+
+out:
+	spin_unlock_irqrestore(&priv->sta_lock, flags);
+	return 0;
+}
+
+static void iwl_clear_stations_table(struct iwl_priv *priv)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->sta_lock, flags);
+
+	priv->num_stations = 0;
+	memset(priv->stations, 0, sizeof(priv->stations));
+
+	spin_unlock_irqrestore(&priv->sta_lock, flags);
+}
+
+
+u8 iwl_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap, u8 flags)
+{
+	int i;
+	int index = IWL_INVALID_STATION;
+	struct iwl_station_entry *station;
+	unsigned long flags_spin;
+
+	spin_lock_irqsave(&priv->sta_lock, flags_spin);
+	if (is_ap)
+		index = IWL_AP_ID;
+	else if (is_broadcast_ether_addr(addr))
+		index = priv->hw_setting.bcast_sta_id;
+	else
+		for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++) {
+			if (!compare_ether_addr(priv->stations[i].sta.sta.addr,
+						addr)) {
+				index = i;
+				break;
+			}
+
+			if (!priv->stations[i].used &&
+			    index == IWL_INVALID_STATION)
+				index = i;
+		}
+
+	/* These twh conditions has the same outcome but keep them separate
+	  since they have different meaning */
+	if (unlikely(index == IWL_INVALID_STATION)) {
+		spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+		return index;
+	}
+
+	if (priv->stations[index].used &&
+	   !compare_ether_addr(priv->stations[index].sta.sta.addr, addr)) {
+		spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+		return index;
+	}
+
+	IWL_DEBUG_ASSOC("Add STA ID %d: " MAC_FMT "\n", index, MAC_ARG(addr));
+	station = &priv->stations[index];
+	station->used = 1;
+	priv->num_stations++;
+
+	memset(&station->sta, 0, sizeof(struct iwl_addsta_cmd));
+	memcpy(station->sta.sta.addr, addr, ETH_ALEN);
+	station->sta.mode = 0;
+	station->sta.sta.sta_id = index;
+	station->sta.station_flags = 0;
+
+	spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+	iwl_send_add_station(priv, &station->sta, flags);
+	return index;
+
+}
+
+/*************** DRIVER STATUS FUNCTIONS   *****/
+
+static inline int iwl_is_ready(struct iwl_priv *priv)
+{
+	/* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
+	 * set but EXIT_PENDING is not */
+	return test_bit(STATUS_READY, &priv->status) &&
+	       test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
+	       !test_bit(STATUS_EXIT_PENDING, &priv->status);
+}
+
+static inline int iwl_is_alive(struct iwl_priv *priv)
+{
+	return test_bit(STATUS_ALIVE, &priv->status);
+}
+
+static inline int iwl_is_init(struct iwl_priv *priv)
+{
+	return test_bit(STATUS_INIT, &priv->status);
+}
+
+static inline int iwl_is_rfkill(struct iwl_priv *priv)
+{
+	return test_bit(STATUS_RF_KILL_HW, &priv->status) ||
+	       test_bit(STATUS_RF_KILL_SW, &priv->status);
+}
+
+static inline int iwl_is_ready_rf(struct iwl_priv *priv)
+{
+
+	if (iwl_is_rfkill(priv))
+		return 0;
+
+	return iwl_is_ready(priv);
+}
+
+/*************** HOST COMMAND QUEUE FUNCTIONS   *****/
+
+#define IWL_CMD(x) case x : return #x
+
+static const char *get_cmd_string(u8 cmd)
+{
+	switch (cmd) {
+		IWL_CMD(REPLY_ALIVE);
+		IWL_CMD(REPLY_ERROR);
+		IWL_CMD(REPLY_RXON);
+		IWL_CMD(REPLY_RXON_ASSOC);
+		IWL_CMD(REPLY_QOS_PARAM);
+		IWL_CMD(REPLY_RXON_TIMING);
+		IWL_CMD(REPLY_ADD_STA);
+		IWL_CMD(REPLY_REMOVE_STA);
+		IWL_CMD(REPLY_REMOVE_ALL_STA);
+		IWL_CMD(REPLY_3945_RX);
+		IWL_CMD(REPLY_TX);
+		IWL_CMD(REPLY_RATE_SCALE);
+		IWL_CMD(REPLY_LEDS_CMD);
+		IWL_CMD(REPLY_TX_LINK_QUALITY_CMD);
+		IWL_CMD(RADAR_NOTIFICATION);
+		IWL_CMD(REPLY_QUIET_CMD);
+		IWL_CMD(REPLY_CHANNEL_SWITCH);
+		IWL_CMD(CHANNEL_SWITCH_NOTIFICATION);
+		IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD);
+		IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION);
+		IWL_CMD(POWER_TABLE_CMD);
+		IWL_CMD(PM_SLEEP_NOTIFICATION);
+		IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC);
+		IWL_CMD(REPLY_SCAN_CMD);
+		IWL_CMD(REPLY_SCAN_ABORT_CMD);
+		IWL_CMD(SCAN_START_NOTIFICATION);
+		IWL_CMD(SCAN_RESULTS_NOTIFICATION);
+		IWL_CMD(SCAN_COMPLETE_NOTIFICATION);
+		IWL_CMD(BEACON_NOTIFICATION);
+		IWL_CMD(REPLY_TX_BEACON);
+		IWL_CMD(WHO_IS_AWAKE_NOTIFICATION);
+		IWL_CMD(QUIET_NOTIFICATION);
+		IWL_CMD(REPLY_TX_PWR_TABLE_CMD);
+		IWL_CMD(MEASURE_ABORT_NOTIFICATION);
+		IWL_CMD(REPLY_BT_CONFIG);
+		IWL_CMD(REPLY_STATISTICS_CMD);
+		IWL_CMD(STATISTICS_NOTIFICATION);
+		IWL_CMD(REPLY_CARD_STATE_CMD);
+		IWL_CMD(CARD_STATE_NOTIFICATION);
+		IWL_CMD(MISSED_BEACONS_NOTIFICATION);
+	default:
+		return "UNKNOWN";
+
+	}
+}
+
+#define HOST_COMPLETE_TIMEOUT (HZ / 2)
+
+/**
+ * iwl_enqueue_hcmd - enqueue a uCode command
+ * @priv: device private data point
+ * @cmd: a point to the ucode command structure
+ *
+ * The function returns < 0 values to indicate the operation is
+ * failed. On success, it turns the index (> 0) of command in the
+ * command queue.
+ */
+static int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
+{
+	struct iwl_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM];
+	struct iwl_queue *q = &txq->q;
+	struct iwl_tfd_frame *tfd;
+	u32 *control_flags;
+	struct iwl_cmd *out_cmd;
+	u32 idx;
+	u16 fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr));
+	dma_addr_t phys_addr;
+	int pad;
+	u16 count;
+	int ret;
+	unsigned long flags;
+
+	/* If any of the command structures end up being larger than
+	 * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
+	 * we will need to increase the size of the TFD entries */
+	BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) &&
+	       !(cmd->meta.flags & CMD_SIZE_HUGE));
+
+	if (iwl_queue_space(q) < ((cmd->meta.flags & CMD_ASYNC) ? 2 : 1)) {
+		IWL_ERROR("No space for Tx\n");
+		return -ENOSPC;
+	}
+
+	spin_lock_irqsave(&priv->hcmd_lock, flags);
+
+	tfd = &txq->bd[q->first_empty];
+	memset(tfd, 0, sizeof(*tfd));
+
+	control_flags = (u32 *) tfd;
+
+	idx = get_cmd_index(q, q->first_empty, cmd->meta.flags & CMD_SIZE_HUGE);
+	out_cmd = &txq->cmd[idx];
+
+	out_cmd->hdr.cmd = cmd->id;
+	memcpy(&out_cmd->meta, &cmd->meta, sizeof(cmd->meta));
+	memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len);
+
+	/* At this point, the out_cmd now has all of the incoming cmd
+	 * information */
+
+	out_cmd->hdr.flags = 0;
+	out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) |
+			INDEX_TO_SEQ(q->first_empty));
+	if (out_cmd->meta.flags & CMD_SIZE_HUGE)
+		out_cmd->hdr.sequence |= cpu_to_le16(SEQ_HUGE_FRAME);
+
+	phys_addr = txq->dma_addr_cmd + sizeof(txq->cmd[0]) * idx +
+			offsetof(struct iwl_cmd, hdr);
+	iwl_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, fix_size);
+
+	pad = U32_PAD(cmd->len);
+	count = TFD_CTL_COUNT_GET(*control_flags);
+	*control_flags = TFD_CTL_COUNT_SET(count) | TFD_CTL_PAD_SET(pad);
+
+	IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
+		     "%d bytes at %d[%d]:%d\n",
+		     get_cmd_string(out_cmd->hdr.cmd),
+		     out_cmd->hdr.cmd, le16_to_cpu(out_cmd->hdr.sequence),
+		     fix_size, q->first_empty, idx, IWL_CMD_QUEUE_NUM);
+
+	txq->need_update = 1;
+	q->first_empty = iwl_queue_inc_wrap(q->first_empty, q->n_bd);
+	ret = iwl_tx_queue_update_write_ptr(priv, txq);
+
+	spin_unlock_irqrestore(&priv->hcmd_lock, flags);
+	return ret ? ret : idx;
+}
+
+int iwl_send_cmd_async(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
+{
+	int ret;
+
+	BUG_ON(!(cmd->meta.flags & CMD_ASYNC));
+
+	/* An asynchronous command can not expect an SKB to be set. */
+	BUG_ON(cmd->meta.flags & CMD_WANT_SKB);
+
+	/* An asynchronous command MUST have a callback. */
+	BUG_ON(!cmd->meta.u.callback);
+
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+		return -EBUSY;
+
+	ret = iwl_enqueue_hcmd(priv, cmd);
+	if (ret < 0) {
+		IWL_ERROR("Error sending %s: iwl_enqueue_hcmd failed: %d\n",
+			  get_cmd_string(cmd->id), ret);
+		return ret;
+	}
+	return 0;
+}
+
+int iwl_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
+{
+	int cmd_idx;
+	int ret;
+	static atomic_t entry = ATOMIC_INIT(0); /* reentrance protection */
+
+	BUG_ON(cmd->meta.flags & CMD_ASYNC);
+
+	 /* A synchronous command can not have a callback set. */
+	BUG_ON(cmd->meta.u.callback != NULL);
+
+	if (atomic_xchg(&entry, 1)) {
+		IWL_ERROR("Error sending %s: Already sending a host command\n",
+			  get_cmd_string(cmd->id));
+		return -EBUSY;
+	}
+
+	set_bit(STATUS_HCMD_ACTIVE, &priv->status);
+
+	if (cmd->meta.flags & CMD_WANT_SKB)
+		cmd->meta.source = &cmd->meta;
+
+	cmd_idx = iwl_enqueue_hcmd(priv, cmd);
+	if (cmd_idx < 0) {
+		ret = cmd_idx;
+		IWL_ERROR("Error sending %s: iwl_enqueue_hcmd failed: %d\n",
+			  get_cmd_string(cmd->id), ret);
+		goto out;
+	}
+
+	ret = wait_event_interruptible_timeout(priv->wait_command_queue,
+			!test_bit(STATUS_HCMD_ACTIVE, &priv->status),
+			HOST_COMPLETE_TIMEOUT);
+	if (!ret) {
+		if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) {
+			IWL_ERROR("Error sending %s: time out after %dms.\n",
+				  get_cmd_string(cmd->id),
+				  jiffies_to_msecs(HOST_COMPLETE_TIMEOUT));
+
+			clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
+			ret = -ETIMEDOUT;
+			goto cancel;
+		}
+	}
+
+	if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
+		IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n",
+			       get_cmd_string(cmd->id));
+		ret = -ECANCELED;
+		goto fail;
+	}
+	if (test_bit(STATUS_FW_ERROR, &priv->status)) {
+		IWL_DEBUG_INFO("Command %s failed: FW Error\n",
+			       get_cmd_string(cmd->id));
+		ret = -EIO;
+		goto fail;
+	}
+	if ((cmd->meta.flags & CMD_WANT_SKB) && !cmd->meta.u.skb) {
+		IWL_ERROR("Error: Response NULL in '%s'\n",
+			  get_cmd_string(cmd->id));
+		ret = -EIO;
+		goto out;
+	}
+
+	ret = 0;
+	goto out;
+
+cancel:
+	if (cmd->meta.flags & CMD_WANT_SKB) {
+		struct iwl_cmd *qcmd;
+
+		/* Cancel the CMD_WANT_SKB flag for the cmd in the
+		 * TX cmd queue. Otherwise in case the cmd comes
+		 * in later, it will possibly set an invalid
+		 * address (cmd->meta.source). */
+		qcmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_idx];
+		qcmd->meta.flags &= ~CMD_WANT_SKB;
+	}
+fail:
+	if (cmd->meta.u.skb) {
+		dev_kfree_skb_any(cmd->meta.u.skb);
+		cmd->meta.u.skb = NULL;
+	}
+out:
+	atomic_set(&entry, 0);
+	return ret;
+}
+
+int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
+{
+	/* A command can not be asynchronous AND expect an SKB to be set. */
+	BUG_ON((cmd->meta.flags & CMD_ASYNC) &&
+	       (cmd->meta.flags & CMD_WANT_SKB));
+
+	if (cmd->meta.flags & CMD_ASYNC)
+		return iwl_send_cmd_async(priv, cmd);
+
+	return iwl_send_cmd_sync(priv, cmd);
+}
+
+int iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u16 len, const void *data)
+{
+	struct iwl_host_cmd cmd = {
+		.id = id,
+		.len = len,
+		.data = data,
+	};
+
+	return iwl_send_cmd_sync(priv, &cmd);
+}
+
+static int __must_check iwl_send_cmd_u32(struct iwl_priv *priv, u8 id, u32 val)
+{
+	struct iwl_host_cmd cmd = {
+		.id = id,
+		.len = sizeof(val),
+		.data = &val,
+	};
+
+	return iwl_send_cmd_sync(priv, &cmd);
+}
+
+int iwl_send_statistics_request(struct iwl_priv *priv)
+{
+	return iwl_send_cmd_u32(priv, REPLY_STATISTICS_CMD, 0);
+}
+
+/**
+ * iwl_rxon_add_station - add station into station table.
+ *
+ * there is only one AP station with id= IWL_AP_ID
+ * NOTE: mutex must be held before calling the this fnction
+*/
+static int iwl_rxon_add_station(struct iwl_priv *priv,
+				const u8 *addr, int is_ap)
+{
+	u8 rc;
+
+	/* Remove this station if it happens to already exist */
+	iwl_remove_station(priv, addr, is_ap);
+
+	rc = iwl_add_station(priv, addr, is_ap, 0);
+
+	return rc;
+}
+
+/**
+ * iwl_set_rxon_channel - Set the phymode and channel values in staging RXON
+ * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz
+ * @channel: Any channel valid for the requested phymode
+
+ * In addition to setting the staging RXON, priv->phymode is also set.
+ *
+ * NOTE:  Does not commit to the hardware; it sets appropriate bit fields
+ * in the staging RXON flag structure based on the phymode
+ */
+static int iwl_set_rxon_channel(struct iwl_priv *priv, u8 phymode, u16 channel)
+{
+	if (!iwl_get_channel_info(priv, phymode, channel)) {
+		IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
+			       channel, phymode);
+		return -EINVAL;
+	}
+
+	if ((le16_to_cpu(priv->staging_rxon.channel) == channel) &&
+	    (priv->phymode == phymode))
+		return 0;
+
+	priv->staging_rxon.channel = cpu_to_le16(channel);
+	if (phymode == MODE_IEEE80211A)
+		priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK;
+	else
+		priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
+
+	priv->phymode = phymode;
+
+	IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel, phymode);
+
+	return 0;
+}
+
+/**
+ * iwl_check_rxon_cmd - validate RXON structure is valid
+ *
+ * NOTE:  This is really only useful during development and can eventually
+ * be #ifdef'd out once the driver is stable and folks aren't actively
+ * making changes
+ */
+static int iwl_check_rxon_cmd(struct iwl_rxon_cmd *rxon)
+{
+	int error = 0;
+	int counter = 1;
+
+	if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
+		error |= le32_to_cpu(rxon->flags &
+				(RXON_FLG_TGJ_NARROW_BAND_MSK |
+				 RXON_FLG_RADAR_DETECT_MSK));
+		if (error)
+			IWL_WARNING("check 24G fields %d | %d\n",
+				    counter++, error);
+	} else {
+		error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ?
+				0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK);
+		if (error)
+			IWL_WARNING("check 52 fields %d | %d\n",
+				    counter++, error);
+		error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
+		if (error)
+			IWL_WARNING("check 52 CCK %d | %d\n",
+				    counter++, error);
+	}
+	error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
+	if (error)
+		IWL_WARNING("check mac addr %d | %d\n", counter++, error);
+
+	/* make sure basic rates 6Mbps and 1Mbps are supported */
+	error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
+		  ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
+	if (error)
+		IWL_WARNING("check basic rate %d | %d\n", counter++, error);
+
+	error |= (le16_to_cpu(rxon->assoc_id) > 2007);
+	if (error)
+		IWL_WARNING("check assoc id %d | %d\n", counter++, error);
+
+	error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
+			== (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK));
+	if (error)
+		IWL_WARNING("check CCK and short slot %d | %d\n",
+			    counter++, error);
+
+	error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
+			== (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK));
+	if (error)
+		IWL_WARNING("check CCK & auto detect %d | %d\n",
+			    counter++, error);
+
+	error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
+			RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK);
+	if (error)
+		IWL_WARNING("check TGG and auto detect %d | %d\n",
+			    counter++, error);
+
+	if ((rxon->flags & RXON_FLG_DIS_DIV_MSK))
+		error |= ((rxon->flags & (RXON_FLG_ANT_B_MSK |
+				RXON_FLG_ANT_A_MSK)) == 0);
+	if (error)
+		IWL_WARNING("check antenna %d %d\n", counter++, error);
+
+	if (error)
+		IWL_WARNING("Tuning to channel %d\n",
+			    le16_to_cpu(rxon->channel));
+
+	if (error) {
+		IWL_ERROR("Not a valid iwl_rxon_assoc_cmd field values\n");
+		return -1;
+	}
+	return 0;
+}
+
+/**
+ * iwl_full_rxon_required - determine if RXON_ASSOC can be used in RXON commit
+ * @priv: staging_rxon is comapred to active_rxon
+ *
+ * If the RXON structure is changing sufficient to require a new
+ * tune or to clear and reset the RXON_FILTER_ASSOC_MSK then return 1
+ * to indicate a new tune is required.
+ */
+static int iwl_full_rxon_required(struct iwl_priv *priv)
+{
+
+	/* These items are only settable from the full RXON command */
+	if (!(priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ||
+	    compare_ether_addr(priv->staging_rxon.bssid_addr,
+			       priv->active_rxon.bssid_addr) ||
+	    compare_ether_addr(priv->staging_rxon.node_addr,
+			       priv->active_rxon.node_addr) ||
+	    compare_ether_addr(priv->staging_rxon.wlap_bssid_addr,
+			       priv->active_rxon.wlap_bssid_addr) ||
+	    (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) ||
+	    (priv->staging_rxon.channel != priv->active_rxon.channel) ||
+	    (priv->staging_rxon.air_propagation !=
+	     priv->active_rxon.air_propagation) ||
+	    (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id))
+		return 1;
+
+	/* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
+	 * be updated with the RXON_ASSOC command -- however only some
+	 * flag transitions are allowed using RXON_ASSOC */
+
+	/* Check if we are not switching bands */
+	if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) !=
+	    (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK))
+		return 1;
+
+	/* Check if we are switching association toggle */
+	if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) !=
+		(priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK))
+		return 1;
+
+	return 0;
+}
+
+static int iwl_send_rxon_assoc(struct iwl_priv *priv)
+{
+	int rc = 0;
+	struct iwl_rx_packet *res = NULL;
+	struct iwl_rxon_assoc_cmd rxon_assoc;
+	struct iwl_host_cmd cmd = {
+		.id = REPLY_RXON_ASSOC,
+		.len = sizeof(rxon_assoc),
+		.meta.flags = CMD_WANT_SKB,
+		.data = &rxon_assoc,
+	};
+	const struct iwl_rxon_cmd *rxon1 = &priv->staging_rxon;
+	const struct iwl_rxon_cmd *rxon2 = &priv->active_rxon;
+
+	if ((rxon1->flags == rxon2->flags) &&
+	    (rxon1->filter_flags == rxon2->filter_flags) &&
+	    (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
+	    (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
+		IWL_DEBUG_INFO("Using current RXON_ASSOC.  Not resending.\n");
+		return 0;
+	}
+
+	rxon_assoc.flags = priv->staging_rxon.flags;
+	rxon_assoc.filter_flags = priv->staging_rxon.filter_flags;
+	rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates;
+	rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates;
+	rxon_assoc.reserved = 0;
+
+	rc = iwl_send_cmd_sync(priv, &cmd);
+	if (rc)
+		return rc;
+
+	res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
+	if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+		IWL_ERROR("Bad return from REPLY_RXON_ASSOC command\n");
+		rc = -EIO;
+	}
+
+	priv->alloc_rxb_skb--;
+	dev_kfree_skb_any(cmd.meta.u.skb);
+
+	return rc;
+}
+
+/**
+ * iwl_commit_rxon - commit staging_rxon to hardware
+ *
+ * The RXON command in staging_rxon is commited to the hardware and
+ * the active_rxon structure is updated with the new data.  This
+ * function correctly transitions out of the RXON_ASSOC_MSK state if
+ * a HW tune is required based on the RXON structure changes.
+ */
+static int iwl_commit_rxon(struct iwl_priv *priv)
+{
+	/* cast away the const for active_rxon in this function */
+	struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon;
+	int rc = 0;
+
+	if (!iwl_is_alive(priv))
+		return -1;
+
+	/* always get timestamp with Rx frame */
+	priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK;
+
+	/* select antenna */
+	priv->staging_rxon.flags &=
+	    ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK);
+	priv->staging_rxon.flags |= iwl3945_get_antenna_flags(priv);
+
+	rc = iwl_check_rxon_cmd(&priv->staging_rxon);
+	if (rc) {
+		IWL_ERROR("Invalid RXON configuration.  Not committing.\n");
+		return -EINVAL;
+	}
+
+	/* If we don't need to send a full RXON, we can use
+	 * iwl_rxon_assoc_cmd which is used to reconfigure filter
+	 * and other flags for the current radio configuration. */
+	if (!iwl_full_rxon_required(priv)) {
+		rc = iwl_send_rxon_assoc(priv);
+		if (rc) {
+			IWL_ERROR("Error setting RXON_ASSOC "
+				  "configuration (%d).\n", rc);
+			return rc;
+		}
+
+		memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
+
+		return 0;
+	}
+
+	/* If we are currently associated and the new config requires
+	 * an RXON_ASSOC and the new config wants the associated mask enabled,
+	 * we must clear the associated from the active configuration
+	 * before we apply the new config */
+	if (iwl_is_associated(priv) &&
+	    (priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) {
+		IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
+		active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+
+		rc = iwl_send_cmd_pdu(priv, REPLY_RXON,
+				      sizeof(struct iwl_rxon_cmd),
+				      &priv->active_rxon);
+
+		/* If the mask clearing failed then we set
+		 * active_rxon back to what it was previously */
+		if (rc) {
+			active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
+			IWL_ERROR("Error clearing ASSOC_MSK on current "
+				  "configuration (%d).\n", rc);
+			return rc;
+		}
+
+		/* The RXON bit toggling will have cleared out the
+		 * station table in the uCode, so blank it in the driver
+		 * as well */
+		iwl_clear_stations_table(priv);
+	} else if (priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) {
+		/* When switching from non-associated to associated, the
+		 * uCode clears out the station table; so clear it in the
+		 * driver as well */
+		iwl_clear_stations_table(priv);
+	}
+
+	IWL_DEBUG_INFO("Sending RXON\n"
+		       "* with%s RXON_FILTER_ASSOC_MSK\n"
+		       "* channel = %d\n"
+		       "* bssid = " MAC_FMT "\n",
+		       ((priv->staging_rxon.filter_flags &
+			 RXON_FILTER_ASSOC_MSK) ? "" : "out"),
+		       le16_to_cpu(priv->staging_rxon.channel),
+		       MAC_ARG(priv->staging_rxon.bssid_addr));
+
+	/* Apply the new configuration */
+	rc = iwl_send_cmd_pdu(priv, REPLY_RXON,
+			      sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
+	if (rc) {
+		IWL_ERROR("Error setting new configuration (%d).\n", rc);
+		return rc;
+	}
+
+	memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
+
+	/* If we issue a new RXON command which required a tune then we must
+	 * send a new TXPOWER command or we won't be able to Tx any frames */
+	rc = iwl_hw_reg_send_txpower(priv);
+	if (rc) {
+		IWL_ERROR("Error setting Tx power (%d).\n", rc);
+		return rc;
+	}
+
+	/* Add the broadcast address so we can send broadcast frames */
+	if (iwl_rxon_add_station(priv, BROADCAST_ADDR, 0) ==
+	    IWL_INVALID_STATION) {
+		IWL_ERROR("Error adding BROADCAST address for transmit.\n");
+		return -EIO;
+	}
+
+	/* If we have set the ASSOC_MSK and we are in BSS mode then
+	 * add the IWL_AP_ID to the station rate table */
+	if (iwl_is_associated(priv) &&
+	    (priv->iw_mode == IEEE80211_IF_TYPE_STA))
+		if (iwl_rxon_add_station(priv, priv->active_rxon.bssid_addr, 1)
+		    == IWL_INVALID_STATION) {
+			IWL_ERROR("Error adding AP address for transmit.\n");
+			return -EIO;
+		}
+
+	/* Init the hardware's rate fallback order based on the
+	 * phymode */
+	rc = iwl3945_init_hw_rate_table(priv);
+	if (rc) {
+		IWL_ERROR("Error setting HW rate table: %02X\n", rc);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int iwl_send_bt_config(struct iwl_priv *priv)
+{
+	struct iwl_bt_cmd bt_cmd = {
+		.flags = 3,
+		.lead_time = 0xAA,
+		.max_kill = 1,
+		.kill_ack_mask = 0,
+		.kill_cts_mask = 0,
+	};
+
+	return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG,
+				sizeof(struct iwl_bt_cmd), &bt_cmd);
+}
+
+static int iwl_send_scan_abort(struct iwl_priv *priv)
+{
+	int rc = 0;
+	struct iwl_rx_packet *res;
+	struct iwl_host_cmd cmd = {
+		.id = REPLY_SCAN_ABORT_CMD,
+		.meta.flags = CMD_WANT_SKB,
+	};
+
+	/* If there isn't a scan actively going on in the hardware
+	 * then we are in between scan bands and not actually
+	 * actively scanning, so don't send the abort command */
+	if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
+		clear_bit(STATUS_SCAN_ABORTING, &priv->status);
+		return 0;
+	}
+
+	rc = iwl_send_cmd_sync(priv, &cmd);
+	if (rc) {
+		clear_bit(STATUS_SCAN_ABORTING, &priv->status);
+		return rc;
+	}
+
+	res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
+	if (res->u.status != CAN_ABORT_STATUS) {
+		/* The scan abort will return 1 for success or
+		 * 2 for "failure".  A failure condition can be
+		 * due to simply not being in an active scan which
+		 * can occur if we send the scan abort before we
+		 * the microcode has notified us that a scan is
+		 * completed. */
+		IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status);
+		clear_bit(STATUS_SCAN_ABORTING, &priv->status);
+		clear_bit(STATUS_SCAN_HW, &priv->status);
+	}
+
+	dev_kfree_skb_any(cmd.meta.u.skb);
+
+	return rc;
+}
+
+static int iwl_card_state_sync_callback(struct iwl_priv *priv,
+					struct iwl_cmd *cmd,
+					struct sk_buff *skb)
+{
+	return 1;
+}
+
+/*
+ * CARD_STATE_CMD
+ *
+ * Use: Sets the internal card state to enable, disable, or halt
+ *
+ * When in the 'enable' state the card operates as normal.
+ * When in the 'disable' state, the card enters into a low power mode.
+ * When in the 'halt' state, the card is shut down and must be fully
+ * restarted to come back on.
+ */
+static int iwl_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag)
+{
+	struct iwl_host_cmd cmd = {
+		.id = REPLY_CARD_STATE_CMD,
+		.len = sizeof(u32),
+		.data = &flags,
+		.meta.flags = meta_flag,
+	};
+
+	if (meta_flag & CMD_ASYNC)
+		cmd.meta.u.callback = iwl_card_state_sync_callback;
+
+	return iwl_send_cmd(priv, &cmd);
+}
+
+static int iwl_add_sta_sync_callback(struct iwl_priv *priv,
+				     struct iwl_cmd *cmd, struct sk_buff *skb)
+{
+	struct iwl_rx_packet *res = NULL;
+
+	if (!skb) {
+		IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n");
+		return 1;
+	}
+
+	res = (struct iwl_rx_packet *)skb->data;
+	if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+		IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
+			  res->hdr.flags);
+		return 1;
+	}
+
+	switch (res->u.add_sta.status) {
+	case ADD_STA_SUCCESS_MSK:
+		break;
+	default:
+		break;
+	}
+
+	/* We didn't cache the SKB; let the caller free it */
+	return 1;
+}
+
+int iwl_send_add_station(struct iwl_priv *priv,
+			 struct iwl_addsta_cmd *sta, u8 flags)
+{
+	struct iwl_rx_packet *res = NULL;
+	int rc = 0;
+	struct iwl_host_cmd cmd = {
+		.id = REPLY_ADD_STA,
+		.len = sizeof(struct iwl_addsta_cmd),
+		.meta.flags = flags,
+		.data = sta,
+	};
+
+	if (flags & CMD_ASYNC)
+		cmd.meta.u.callback = iwl_add_sta_sync_callback;
+	else
+		cmd.meta.flags |= CMD_WANT_SKB;
+
+	rc = iwl_send_cmd(priv, &cmd);
+
+	if (rc || (flags & CMD_ASYNC))
+		return rc;
+
+	res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
+	if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+		IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
+			  res->hdr.flags);
+		rc = -EIO;
+	}
+
+	if (rc == 0) {
+		switch (res->u.add_sta.status) {
+		case ADD_STA_SUCCESS_MSK:
+			IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
+			break;
+		default:
+			rc = -EIO;
+			IWL_WARNING("REPLY_ADD_STA failed\n");
+			break;
+		}
+	}
+
+	priv->alloc_rxb_skb--;
+	dev_kfree_skb_any(cmd.meta.u.skb);
+
+	return rc;
+}
+
+static int iwl_update_sta_key_info(struct iwl_priv *priv,
+				   struct ieee80211_key_conf *keyconf,
+				   u8 sta_id)
+{
+	unsigned long flags;
+	__le16 key_flags = 0;
+
+	switch (keyconf->alg) {
+	case ALG_CCMP:
+		key_flags |= STA_KEY_FLG_CCMP;
+		key_flags |= cpu_to_le16(
+				keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
+		key_flags &= ~STA_KEY_FLG_INVALID;
+		break;
+	case ALG_TKIP:
+	case ALG_WEP:
+		return -EINVAL;
+	default:
+		return -EINVAL;
+	}
+	spin_lock_irqsave(&priv->sta_lock, flags);
+	priv->stations[sta_id].keyinfo.alg = keyconf->alg;
+	priv->stations[sta_id].keyinfo.keylen = keyconf->keylen;
+	memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key,
+	       keyconf->keylen);
+
+	memcpy(priv->stations[sta_id].sta.key.key, keyconf->key,
+	       keyconf->keylen);
+	priv->stations[sta_id].sta.key.key_flags = key_flags;
+	priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
+	priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+
+	spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+	IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
+	iwl_send_add_station(priv, &priv->stations[sta_id].sta, 0);
+	return 0;
+}
+
+static int iwl_clear_sta_key_info(struct iwl_priv *priv, u8 sta_id)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->sta_lock, flags);
+	memset(&priv->stations[sta_id].keyinfo, 0, sizeof(struct iwl_hw_key));
+	memset(&priv->stations[sta_id].sta.key, 0, sizeof(struct iwl_keyinfo));
+	priv->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC;
+	priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
+	priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+	spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+	IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
+	iwl_send_add_station(priv, &priv->stations[sta_id].sta, 0);
+	return 0;
+}
+
+static void iwl_clear_free_frames(struct iwl_priv *priv)
+{
+	struct list_head *element;
+
+	IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
+		       priv->frames_count);
+
+	while (!list_empty(&priv->free_frames)) {
+		element = priv->free_frames.next;
+		list_del(element);
+		kfree(list_entry(element, struct iwl_frame, list));
+		priv->frames_count--;
+	}
+
+	if (priv->frames_count) {
+		IWL_WARNING("%d frames still in use.  Did we lose one?\n",
+			    priv->frames_count);
+		priv->frames_count = 0;
+	}
+}
+
+static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv)
+{
+	struct iwl_frame *frame;
+	struct list_head *element;
+	if (list_empty(&priv->free_frames)) {
+		frame = kzalloc(sizeof(*frame), GFP_KERNEL);
+		if (!frame) {
+			IWL_ERROR("Could not allocate frame!\n");
+			return NULL;
+		}
+
+		priv->frames_count++;
+		return frame;
+	}
+
+	element = priv->free_frames.next;
+	list_del(element);
+	return list_entry(element, struct iwl_frame, list);
+}
+
+static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame)
+{
+	memset(frame, 0, sizeof(*frame));
+	list_add(&frame->list, &priv->free_frames);
+}
+
+unsigned int iwl_fill_beacon_frame(struct iwl_priv *priv,
+				struct ieee80211_hdr *hdr,
+				const u8 *dest, int left)
+{
+
+	if (!iwl_is_associated(priv) || !priv->ibss_beacon ||
+	    ((priv->iw_mode != IEEE80211_IF_TYPE_IBSS) &&
+	     (priv->iw_mode != IEEE80211_IF_TYPE_AP)))
+		return 0;
+
+	if (priv->ibss_beacon->len > left)
+		return 0;
+
+	memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
+
+	return priv->ibss_beacon->len;
+}
+
+static int iwl_rate_index_from_plcp(int plcp)
+{
+	int i = 0;
+
+	for (i = 0; i < IWL_RATE_COUNT; i++)
+		if (iwl_rates[i].plcp == plcp)
+			return i;
+	return -1;
+}
+
+static u8 iwl_rate_get_lowest_plcp(int rate_mask)
+{
+	u8 i;
+
+	for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
+	     i = iwl_rates[i].next_ieee) {
+		if (rate_mask & (1 << i))
+			return iwl_rates[i].plcp;
+	}
+
+	return IWL_RATE_INVALID;
+}
+
+static int iwl_send_beacon_cmd(struct iwl_priv *priv)
+{
+	struct iwl_frame *frame;
+	unsigned int frame_size;
+	int rc;
+	u8 rate;
+
+	frame = iwl_get_free_frame(priv);
+
+	if (!frame) {
+		IWL_ERROR("Could not obtain free frame buffer for beacon "
+			  "command.\n");
+		return -ENOMEM;
+	}
+
+	if (!(priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)) {
+		rate = iwl_rate_get_lowest_plcp(priv->active_rate_basic &
+						0xFF0);
+		if (rate == IWL_INVALID_RATE)
+			rate = IWL_RATE_6M_PLCP;
+	} else {
+		rate = iwl_rate_get_lowest_plcp(priv->active_rate_basic & 0xF);
+		if (rate == IWL_INVALID_RATE)
+			rate = IWL_RATE_1M_PLCP;
+	}
+
+	frame_size = iwl_hw_get_beacon_cmd(priv, frame, rate);
+
+	rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
+			      &frame->u.cmd[0]);
+
+	iwl_free_frame(priv, frame);
+
+	return rc;
+}
+
+/******************************************************************************
+ *
+ * EEPROM related functions
+ *
+ ******************************************************************************/
+
+static void get_eeprom_mac(struct iwl_priv *priv, u8 *mac)
+{
+	memcpy(mac, priv->eeprom.mac_address, 6);
+}
+
+/**
+ * iwl_eeprom_init - read EEPROM contents
+ *
+ * Load the EEPROM from adapter into priv->eeprom
+ *
+ * NOTE:  This routine uses the non-debug IO access functions.
+ */
+int iwl_eeprom_init(struct iwl_priv *priv)
+{
+	u16 *e = (u16 *)&priv->eeprom;
+	u32 gp = iwl_read32(priv, CSR_EEPROM_GP);
+	u32 r;
+	int sz = sizeof(priv->eeprom);
+	int rc;
+	int i;
+	u16 addr;
+
+	/* The EEPROM structure has several padding buffers within it
+	 * and when adding new EEPROM maps is subject to programmer errors
+	 * which may be very difficult to identify without explicitly
+	 * checking the resulting size of the eeprom map. */
+	BUILD_BUG_ON(sizeof(priv->eeprom) != IWL_EEPROM_IMAGE_SIZE);
+
+	if ((gp & CSR_EEPROM_GP_VALID_MSK) == CSR_EEPROM_GP_BAD_SIGNATURE) {
+		IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x", gp);
+		return -ENOENT;
+	}
+
+	rc = iwl_eeprom_aqcuire_semaphore(priv);
+	if (rc < 0) {
+		IWL_ERROR("Failed to aqcuire EEPROM semaphore.\n");
+		return -ENOENT;
+	}
+
+	/* eeprom is an array of 16bit values */
+	for (addr = 0; addr < sz; addr += sizeof(u16)) {
+		_iwl_write32(priv, CSR_EEPROM_REG, addr << 1);
+		_iwl_clear_bit(priv, CSR_EEPROM_REG, CSR_EEPROM_REG_BIT_CMD);
+
+		for (i = 0; i < IWL_EEPROM_ACCESS_TIMEOUT;
+					i += IWL_EEPROM_ACCESS_DELAY) {
+			r = _iwl_read_restricted(priv, CSR_EEPROM_REG);
+			if (r & CSR_EEPROM_REG_READ_VALID_MSK)
+				break;
+			udelay(IWL_EEPROM_ACCESS_DELAY);
+		}
+
+		if (!(r & CSR_EEPROM_REG_READ_VALID_MSK)) {
+			IWL_ERROR("Time out reading EEPROM[%d]", addr);
+			return -ETIMEDOUT;
+		}
+		e[addr / 2] = le16_to_cpu(r >> 16);
+	}
+
+	return 0;
+}
+
+/******************************************************************************
+ *
+ * Misc. internal state and helper functions
+ *
+ ******************************************************************************/
+#ifdef CONFIG_IWLWIFI_DEBUG
+
+/**
+ * iwl_report_frame - dump frame to syslog during debug sessions
+ *
+ * hack this function to show different aspects of received frames,
+ * including selective frame dumps.
+ * group100 parameter selects whether to show 1 out of 100 good frames.
+ *
+ * TODO:  ieee80211_hdr stuff is common to 3945 and 4965, so frame type
+ *        info output is okay, but some of this stuff (e.g. iwl_rx_frame_stats)
+ *        is 3945-specific and gives bad output for 4965.  Need to split the
+ *        functionality, keep common stuff here.
+ */
+void iwl_report_frame(struct iwl_priv *priv,
+		      struct iwl_rx_packet *pkt,
+		      struct ieee80211_hdr *header, int group100)
+{
+	u32 to_us;
+	u32 print_summary = 0;
+	u32 print_dump = 0;	/* set to 1 to dump all frames' contents */
+	u32 hundred = 0;
+	u32 dataframe = 0;
+	u16 fc;
+	u16 seq_ctl;
+	u16 channel;
+	u16 phy_flags;
+	int rate_sym;
+	u16 length;
+	u16 status;
+	u16 bcn_tmr;
+	u32 tsf_low;
+	u64 tsf;
+	u8 rssi;
+	u8 agc;
+	u16 sig_avg;
+	u16 noise_diff;
+	struct iwl_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt);
+	struct iwl_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
+	struct iwl_rx_frame_end *rx_end = IWL_RX_END(pkt);
+	u8 *data = IWL_RX_DATA(pkt);
+
+	/* MAC header */
+	fc = le16_to_cpu(header->frame_control);
+	seq_ctl = le16_to_cpu(header->seq_ctrl);
+
+	/* metadata */
+	channel = le16_to_cpu(rx_hdr->channel);
+	phy_flags = le16_to_cpu(rx_hdr->phy_flags);
+	rate_sym = rx_hdr->rate;
+	length = le16_to_cpu(rx_hdr->len);
+
+	/* end-of-frame status and timestamp */
+	status = le32_to_cpu(rx_end->status);
+	bcn_tmr = le32_to_cpu(rx_end->beacon_timestamp);
+	tsf_low = le64_to_cpu(rx_end->timestamp) & 0x0ffffffff;
+	tsf = le64_to_cpu(rx_end->timestamp);
+
+	/* signal statistics */
+	rssi = rx_stats->rssi;
+	agc = rx_stats->agc;
+	sig_avg = le16_to_cpu(rx_stats->sig_avg);
+	noise_diff = le16_to_cpu(rx_stats->noise_diff);
+
+	to_us = !compare_ether_addr(header->addr1, priv->mac_addr);
+
+	/* if data frame is to us and all is good,
+	 *   (optionally) print summary for only 1 out of every 100 */
+	if (to_us && (fc & ~IEEE80211_FCTL_PROTECTED) ==
+	    (IEEE80211_FCTL_FROMDS | IEEE80211_FTYPE_DATA)) {
+		dataframe = 1;
+		if (!group100)
+			print_summary = 1;	/* print each frame */
+		else if (priv->framecnt_to_us < 100) {
+			priv->framecnt_to_us++;
+			print_summary = 0;
+		} else {
+			priv->framecnt_to_us = 0;
+			print_summary = 1;
+			hundred = 1;
+		}
+	} else {
+		/* print summary for all other frames */
+		print_summary = 1;
+	}
+
+	if (print_summary) {
+		char *title;
+		u32 rate;
+
+		if (hundred)
+			title = "100Frames";
+		else if (fc & IEEE80211_FCTL_RETRY)
+			title = "Retry";
+		else if (ieee80211_is_assoc_response(fc))
+			title = "AscRsp";
+		else if (ieee80211_is_reassoc_response(fc))
+			title = "RasRsp";
+		else if (ieee80211_is_probe_response(fc)) {
+			title = "PrbRsp";
+			print_dump = 1;	/* dump frame contents */
+		} else if (ieee80211_is_beacon(fc)) {
+			title = "Beacon";
+			print_dump = 1;	/* dump frame contents */
+		} else if (ieee80211_is_atim(fc))
+			title = "ATIM";
+		else if (ieee80211_is_auth(fc))
+			title = "Auth";
+		else if (ieee80211_is_deauth(fc))
+			title = "DeAuth";
+		else if (ieee80211_is_disassoc(fc))
+			title = "DisAssoc";
+		else
+			title = "Frame";
+
+		rate = iwl_rate_index_from_plcp(rate_sym);
+		if (rate == -1)
+			rate = 0;
+		else
+			rate = iwl_rates[rate].ieee / 2;
+
+		/* print frame summary.
+		 * MAC addresses show just the last byte (for brevity),
+		 *    but you can hack it to show more, if you'd like to. */
+		if (dataframe)
+			IWL_DEBUG_RX("%s: mhd=0x%04x, dst=0x%02x, "
+				     "len=%u, rssi=%d, chnl=%d, rate=%u, \n",
+				     title, fc, header->addr1[5],
+				     length, rssi, channel, rate);
+		else {
+			/* src/dst addresses assume managed mode */
+			IWL_DEBUG_RX("%s: 0x%04x, dst=0x%02x, "
+				     "src=0x%02x, rssi=%u, tim=%lu usec, "
+				     "phy=0x%02x, chnl=%d\n",
+				     title, fc, header->addr1[5],
+				     header->addr3[5], rssi,
+				     tsf_low - priv->scan_start_tsf,
+				     phy_flags, channel);
+		}
+	}
+	if (print_dump)
+		iwl_print_hex_dump(IWL_DL_RX, data, length);
+}
+#endif
+
+static void iwl_unset_hw_setting(struct iwl_priv *priv)
+{
+	if (priv->hw_setting.shared_virt)
+		pci_free_consistent(priv->pci_dev,
+				    sizeof(struct iwl_shared),
+				    priv->hw_setting.shared_virt,
+				    priv->hw_setting.shared_phys);
+}
+
+/**
+ * iwl_supported_rate_to_ie - fill in the supported rate in IE field
+ *
+ * return : set the bit for each supported rate insert in ie
+ */
+static u16 iwl_supported_rate_to_ie(u8 *ie, u16 supported_rate,
+				    u16 basic_rate, int max_count)
+{
+	u16 ret_rates = 0, bit;
+	int i;
+	u8 *rates;
+
+	rates = &(ie[1]);
+
+	for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) {
+		if (bit & supported_rate) {
+			ret_rates |= bit;
+			rates[*ie] = iwl_rates[i].ieee |
+			    ((bit & basic_rate) ? 0x80 : 0x00);
+			*ie = *ie + 1;
+			if (*ie >= max_count)
+				break;
+		}
+	}
+
+	return ret_rates;
+}
+
+/**
+ * iwl_fill_probe_req - fill in all required fields and IE for probe request
+ */
+static u16 iwl_fill_probe_req(struct iwl_priv *priv,
+			      struct ieee80211_mgmt *frame,
+			      int left, int is_direct)
+{
+	int len = 0;
+	u8 *pos = NULL;
+	u16 ret_rates;
+
+	/* Make sure there is enough space for the probe request,
+	 * two mandatory IEs and the data */
+	left -= 24;
+	if (left < 0)
+		return 0;
+	len += 24;
+
+	frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
+	memcpy(frame->da, BROADCAST_ADDR, ETH_ALEN);
+	memcpy(frame->sa, priv->mac_addr, ETH_ALEN);
+	memcpy(frame->bssid, BROADCAST_ADDR, ETH_ALEN);
+	frame->seq_ctrl = 0;
+
+	/* fill in our indirect SSID IE */
+	/* ...next IE... */
+
+	left -= 2;
+	if (left < 0)
+		return 0;
+	len += 2;
+	pos = &(frame->u.probe_req.variable[0]);
+	*pos++ = WLAN_EID_SSID;
+	*pos++ = 0;
+
+	/* fill in our direct SSID IE... */
+	if (is_direct) {
+		/* ...next IE... */
+		left -= 2 + priv->essid_len;
+		if (left < 0)
+			return 0;
+		/* ... fill it in... */
+		*pos++ = WLAN_EID_SSID;
+		*pos++ = priv->essid_len;
+		memcpy(pos, priv->essid, priv->essid_len);
+		pos += priv->essid_len;
+		len += 2 + priv->essid_len;
+	}
+
+	/* fill in supported rate */
+	/* ...next IE... */
+	left -= 2;
+	if (left < 0)
+		return 0;
+	/* ... fill it in... */
+	*pos++ = WLAN_EID_SUPP_RATES;
+	*pos = 0;
+	ret_rates = priv->active_rate = priv->rates_mask;
+	priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
+
+	iwl_supported_rate_to_ie(pos, priv->active_rate,
+				 priv->active_rate_basic, left);
+	len += 2 + *pos;
+	pos += (*pos) + 1;
+	ret_rates = ~ret_rates & priv->active_rate;
+
+	if (ret_rates == 0)
+		goto fill_end;
+
+	/* fill in supported extended rate */
+	/* ...next IE... */
+	left -= 2;
+	if (left < 0)
+		return 0;
+	/* ... fill it in... */
+	*pos++ = WLAN_EID_EXT_SUPP_RATES;
+	*pos = 0;
+	iwl_supported_rate_to_ie(pos, ret_rates, priv->active_rate_basic, left);
+	if (*pos > 0)
+		len += 2 + *pos;
+
+ fill_end:
+	return (u16)len;
+}
+
+/*
+ * QoS  support
+*/
+#ifdef CONFIG_IWLWIFI_QOS
+static int iwl_send_qos_params_command(struct iwl_priv *priv,
+				       struct iwl_qosparam_cmd *qos)
+{
+
+	return iwl_send_cmd_pdu(priv, REPLY_QOS_PARAM,
+				sizeof(struct iwl_qosparam_cmd), qos);
+}
+
+static void iwl_reset_qos(struct iwl_priv *priv)
+{
+	u16 cw_min = 15;
+	u16 cw_max = 1023;
+	u8 aifs = 2;
+	u8 is_legacy = 0;
+	unsigned long flags;
+	int i;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	priv->qos_data.qos_active = 0;
+
+	if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) {
+		if (priv->qos_data.qos_enable)
+			priv->qos_data.qos_active = 1;
+		if (!(priv->active_rate & 0xfff0)) {
+			cw_min = 31;
+			is_legacy = 1;
+		}
+	} else if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
+		if (priv->qos_data.qos_enable)
+			priv->qos_data.qos_active = 1;
+	} else if (!(priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK)) {
+		cw_min = 31;
+		is_legacy = 1;
+	}
+
+	if (priv->qos_data.qos_active)
+		aifs = 3;
+
+	priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min);
+	priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max);
+	priv->qos_data.def_qos_parm.ac[0].aifsn = aifs;
+	priv->qos_data.def_qos_parm.ac[0].edca_txop = 0;
+	priv->qos_data.def_qos_parm.ac[0].reserved1 = 0;
+
+	if (priv->qos_data.qos_active) {
+		i = 1;
+		priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min);
+		priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max);
+		priv->qos_data.def_qos_parm.ac[i].aifsn = 7;
+		priv->qos_data.def_qos_parm.ac[i].edca_txop = 0;
+		priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
+
+		i = 2;
+		priv->qos_data.def_qos_parm.ac[i].cw_min =
+			cpu_to_le16((cw_min + 1) / 2 - 1);
+		priv->qos_data.def_qos_parm.ac[i].cw_max =
+			cpu_to_le16(cw_max);
+		priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
+		if (is_legacy)
+			priv->qos_data.def_qos_parm.ac[i].edca_txop =
+				cpu_to_le16(6016);
+		else
+			priv->qos_data.def_qos_parm.ac[i].edca_txop =
+				cpu_to_le16(3008);
+		priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
+
+		i = 3;
+		priv->qos_data.def_qos_parm.ac[i].cw_min =
+			cpu_to_le16((cw_min + 1) / 4 - 1);
+		priv->qos_data.def_qos_parm.ac[i].cw_max =
+			cpu_to_le16((cw_max + 1) / 2 - 1);
+		priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
+		priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
+		if (is_legacy)
+			priv->qos_data.def_qos_parm.ac[i].edca_txop =
+				cpu_to_le16(3264);
+		else
+			priv->qos_data.def_qos_parm.ac[i].edca_txop =
+				cpu_to_le16(1504);
+	} else {
+		for (i = 1; i < 4; i++) {
+			priv->qos_data.def_qos_parm.ac[i].cw_min =
+				cpu_to_le16(cw_min);
+			priv->qos_data.def_qos_parm.ac[i].cw_max =
+				cpu_to_le16(cw_max);
+			priv->qos_data.def_qos_parm.ac[i].aifsn = aifs;
+			priv->qos_data.def_qos_parm.ac[i].edca_txop = 0;
+			priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
+		}
+	}
+	IWL_DEBUG_QOS("set QoS to default \n");
+
+	spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static void iwl_activate_qos(struct iwl_priv *priv, u8 force)
+{
+	unsigned long flags;
+
+	if (priv == NULL)
+		return;
+
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+		return;
+
+	if (!priv->qos_data.qos_enable)
+		return;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	priv->qos_data.def_qos_parm.qos_flags = 0;
+
+	if (priv->qos_data.qos_cap.q_AP.queue_request &&
+	    !priv->qos_data.qos_cap.q_AP.txop_request)
+		priv->qos_data.def_qos_parm.qos_flags |=
+			QOS_PARAM_FLG_TXOP_TYPE_MSK;
+
+	if (priv->qos_data.qos_active)
+		priv->qos_data.def_qos_parm.qos_flags |=
+			QOS_PARAM_FLG_UPDATE_EDCA_MSK;
+
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	if (force || iwl_is_associated(priv)) {
+		IWL_DEBUG_QOS("send QoS cmd with Qos active %d \n",
+			      priv->qos_data.qos_active);
+
+		iwl_send_qos_params_command(priv,
+				&(priv->qos_data.def_qos_parm));
+	}
+}
+
+#endif /* CONFIG_IWLWIFI_QOS */
+/*
+ * Power management (not Tx power!) functions
+ */
+#define MSEC_TO_USEC 1024
+
+#define NOSLP __constant_cpu_to_le32(0)
+#define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK
+#define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
+#define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
+				     __constant_cpu_to_le32(X1), \
+				     __constant_cpu_to_le32(X2), \
+				     __constant_cpu_to_le32(X3), \
+				     __constant_cpu_to_le32(X4)}
+
+
+/* default power management (not Tx power) table values */
+/* for tim  0-10 */
+static struct iwl_power_vec_entry range_0[IWL_POWER_AC] = {
+	{{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
+	{{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
+	{{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
+	{{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
+	{{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
+	{{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
+};
+
+/* for tim > 10 */
+static struct iwl_power_vec_entry range_1[IWL_POWER_AC] = {
+	{{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
+	{{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
+		 SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
+	{{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
+		 SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
+	{{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
+		 SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
+	{{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
+	{{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
+		 SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
+};
+
+int iwl_power_init_handle(struct iwl_priv *priv)
+{
+	int rc = 0, i;
+	struct iwl_power_mgr *pow_data;
+	int size = sizeof(struct iwl_power_vec_entry) * IWL_POWER_AC;
+	u16 pci_pm;
+
+	IWL_DEBUG_POWER("Initialize power \n");
+
+	pow_data = &(priv->power_data);
+
+	memset(pow_data, 0, sizeof(*pow_data));
+
+	pow_data->active_index = IWL_POWER_RANGE_0;
+	pow_data->dtim_val = 0xffff;
+
+	memcpy(&pow_data->pwr_range_0[0], &range_0[0], size);
+	memcpy(&pow_data->pwr_range_1[0], &range_1[0], size);
+
+	rc = pci_read_config_word(priv->pci_dev, PCI_LINK_CTRL, &pci_pm);
+	if (rc != 0)
+		return 0;
+	else {
+		struct iwl_powertable_cmd *cmd;
+
+		IWL_DEBUG_POWER("adjust power command flags\n");
+
+		for (i = 0; i < IWL_POWER_AC; i++) {
+			cmd = &pow_data->pwr_range_0[i].cmd;
+
+			if (pci_pm & 0x1)
+				cmd->flags &= ~IWL_POWER_PCI_PM_MSK;
+			else
+				cmd->flags |= IWL_POWER_PCI_PM_MSK;
+		}
+	}
+	return rc;
+}
+
+static int iwl_update_power_cmd(struct iwl_priv *priv,
+				struct iwl_powertable_cmd *cmd, u32 mode)
+{
+	int rc = 0, i;
+	u8 skip;
+	u32 max_sleep = 0;
+	struct iwl_power_vec_entry *range;
+	u8 period = 0;
+	struct iwl_power_mgr *pow_data;
+
+	if (mode > IWL_POWER_INDEX_5) {
+		IWL_DEBUG_POWER("Error invalid power mode \n");
+		return -1;
+	}
+	pow_data = &(priv->power_data);
+
+	if (pow_data->active_index == IWL_POWER_RANGE_0)
+		range = &pow_data->pwr_range_0[0];
+	else
+		range = &pow_data->pwr_range_1[1];
+
+	memcpy(cmd, &range[mode].cmd, sizeof(struct iwl_powertable_cmd));
+
+#ifdef IWL_MAC80211_DISABLE
+	if (priv->assoc_network != NULL) {
+		unsigned long flags;
+
+		period = priv->assoc_network->tim.tim_period;
+	}
+#endif	/*IWL_MAC80211_DISABLE */
+	skip = range[mode].no_dtim;
+
+	if (period == 0) {
+		period = 1;
+		skip = 0;
+	}
+
+	if (skip == 0) {
+		max_sleep = period;
+		cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK;
+	} else {
+		__le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1];
+		max_sleep = (le32_to_cpu(slp_itrvl) / period) * period;
+		cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK;
+	}
+
+	for (i = 0; i < IWL_POWER_VEC_SIZE; i++) {
+		if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep)
+			cmd->sleep_interval[i] = cpu_to_le32(max_sleep);
+	}
+
+	IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd->flags);
+	IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout));
+	IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout));
+	IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
+			le32_to_cpu(cmd->sleep_interval[0]),
+			le32_to_cpu(cmd->sleep_interval[1]),
+			le32_to_cpu(cmd->sleep_interval[2]),
+			le32_to_cpu(cmd->sleep_interval[3]),
+			le32_to_cpu(cmd->sleep_interval[4]));
+
+	return rc;
+}
+
+static int iwl_send_power_mode(struct iwl_priv *priv, u32 mode)
+{
+	u32 final_mode = mode;
+	int rc;
+	struct iwl_powertable_cmd cmd;
+
+	/* If on battery, set to 3,
+	 * if plugged into AC power, set to CAM ("continuosly aware mode"),
+	 * else user level */
+	switch (mode) {
+	case IWL_POWER_BATTERY:
+		final_mode = IWL_POWER_INDEX_3;
+		break;
+	case IWL_POWER_AC:
+		final_mode = IWL_POWER_MODE_CAM;
+		break;
+	default:
+		final_mode = mode;
+		break;
+	}
+
+	iwl_update_power_cmd(priv, &cmd, final_mode);
+
+	rc = iwl_send_cmd_pdu(priv, POWER_TABLE_CMD, sizeof(cmd), &cmd);
+
+	if (final_mode == IWL_POWER_MODE_CAM)
+		clear_bit(STATUS_POWER_PMI, &priv->status);
+	else
+		set_bit(STATUS_POWER_PMI, &priv->status);
+
+	return rc;
+}
+
+int iwl_is_network_packet(struct iwl_priv *priv, struct ieee80211_hdr *header)
+{
+	/* Filter incoming packets to determine if they are targeted toward
+	 * this network, discarding packets coming from ourselves */
+	switch (priv->iw_mode) {
+	case IEEE80211_IF_TYPE_IBSS: /* Header: Dest. | Source    | BSSID */
+		/* packets from our adapter are dropped (echo) */
+		if (!compare_ether_addr(header->addr2, priv->mac_addr))
+			return 0;
+		/* {broad,multi}cast packets to our IBSS go through */
+		if (is_multicast_ether_addr(header->addr1))
+			return !compare_ether_addr(header->addr3, priv->bssid);
+		/* packets to our adapter go through */
+		return !compare_ether_addr(header->addr1, priv->mac_addr);
+	case IEEE80211_IF_TYPE_STA: /* Header: Dest. | AP{BSSID} | Source */
+		/* packets from our adapter are dropped (echo) */
+		if (!compare_ether_addr(header->addr3, priv->mac_addr))
+			return 0;
+		/* {broad,multi}cast packets to our BSS go through */
+		if (is_multicast_ether_addr(header->addr1))
+			return !compare_ether_addr(header->addr2, priv->bssid);
+		/* packets to our adapter go through */
+		return !compare_ether_addr(header->addr1, priv->mac_addr);
+	}
+
+	return 1;
+}
+
+#define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
+
+const char *iwl_get_tx_fail_reason(u32 status)
+{
+	switch (status & TX_STATUS_MSK) {
+	case TX_STATUS_SUCCESS:
+		return "SUCCESS";
+		TX_STATUS_ENTRY(SHORT_LIMIT);
+		TX_STATUS_ENTRY(LONG_LIMIT);
+		TX_STATUS_ENTRY(FIFO_UNDERRUN);
+		TX_STATUS_ENTRY(MGMNT_ABORT);
+		TX_STATUS_ENTRY(NEXT_FRAG);
+		TX_STATUS_ENTRY(LIFE_EXPIRE);
+		TX_STATUS_ENTRY(DEST_PS);
+		TX_STATUS_ENTRY(ABORTED);
+		TX_STATUS_ENTRY(BT_RETRY);
+		TX_STATUS_ENTRY(STA_INVALID);
+		TX_STATUS_ENTRY(FRAG_DROPPED);
+		TX_STATUS_ENTRY(TID_DISABLE);
+		TX_STATUS_ENTRY(FRAME_FLUSHED);
+		TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL);
+		TX_STATUS_ENTRY(TX_LOCKED);
+		TX_STATUS_ENTRY(NO_BEACON_ON_RADAR);
+	}
+
+	return "UNKNOWN";
+}
+
+/**
+ * iwl_scan_cancel - Cancel any currently executing HW scan
+ *
+ * NOTE: priv->mutex is not required before calling this function
+ */
+static int iwl_scan_cancel(struct iwl_priv *priv)
+{
+	if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
+		clear_bit(STATUS_SCANNING, &priv->status);
+		return 0;
+	}
+
+	if (test_bit(STATUS_SCANNING, &priv->status)) {
+		if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
+			IWL_DEBUG_SCAN("Queuing scan abort.\n");
+			set_bit(STATUS_SCAN_ABORTING, &priv->status);
+			queue_work(priv->workqueue, &priv->abort_scan);
+
+		} else
+			IWL_DEBUG_SCAN("Scan abort already in progress.\n");
+
+		return test_bit(STATUS_SCANNING, &priv->status);
+	}
+
+	return 0;
+}
+
+/**
+ * iwl_scan_cancel_timeout - Cancel any currently executing HW scan
+ * @ms: amount of time to wait (in milliseconds) for scan to abort
+ *
+ * NOTE: priv->mutex must be held before calling this function
+ */
+static int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms)
+{
+	unsigned long now = jiffies;
+	int ret;
+
+	ret = iwl_scan_cancel(priv);
+	if (ret && ms) {
+		mutex_unlock(&priv->mutex);
+		while (!time_after(jiffies, now + msecs_to_jiffies(ms)) &&
+				test_bit(STATUS_SCANNING, &priv->status))
+			msleep(1);
+		mutex_lock(&priv->mutex);
+
+		return test_bit(STATUS_SCANNING, &priv->status);
+	}
+
+	return ret;
+}
+
+static void iwl_sequence_reset(struct iwl_priv *priv)
+{
+	/* Reset ieee stats */
+
+	/* We don't reset the net_device_stats (ieee->stats) on
+	 * re-association */
+
+	priv->last_seq_num = -1;
+	priv->last_frag_num = -1;
+	priv->last_packet_time = 0;
+
+	iwl_scan_cancel(priv);
+}
+
+#define MAX_UCODE_BEACON_INTERVAL	1024
+#define INTEL_CONN_LISTEN_INTERVAL	__constant_cpu_to_le16(0xA)
+
+static __le16 iwl_adjust_beacon_interval(u16 beacon_val)
+{
+	u16 new_val = 0;
+	u16 beacon_factor = 0;
+
+	beacon_factor =
+	    (beacon_val + MAX_UCODE_BEACON_INTERVAL)
+		/ MAX_UCODE_BEACON_INTERVAL;
+	new_val = beacon_val / beacon_factor;
+
+	return cpu_to_le16(new_val);
+}
+
+static void iwl_setup_rxon_timing(struct iwl_priv *priv)
+{
+	u64 interval_tm_unit;
+	u64 tsf, result;
+	unsigned long flags;
+	struct ieee80211_conf *conf = NULL;
+	u16 beacon_int = 0;
+
+	conf = ieee80211_get_hw_conf(priv->hw);
+
+	spin_lock_irqsave(&priv->lock, flags);
+	priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp1);
+	priv->rxon_timing.timestamp.dw[0] = cpu_to_le32(priv->timestamp0);
+
+	priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL;
+
+	tsf = priv->timestamp1;
+	tsf = ((tsf << 32) | priv->timestamp0);
+
+	beacon_int = priv->beacon_int;
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	if (priv->iw_mode == IEEE80211_IF_TYPE_STA) {
+		if (beacon_int == 0) {
+			priv->rxon_timing.beacon_interval = cpu_to_le16(100);
+			priv->rxon_timing.beacon_init_val = cpu_to_le32(102400);
+		} else {
+			priv->rxon_timing.beacon_interval =
+				cpu_to_le16(beacon_int);
+			priv->rxon_timing.beacon_interval =
+			    iwl_adjust_beacon_interval(
+				le16_to_cpu(priv->rxon_timing.beacon_interval));
+		}
+
+		priv->rxon_timing.atim_window = 0;
+	} else {
+		priv->rxon_timing.beacon_interval =
+			iwl_adjust_beacon_interval(conf->beacon_int);
+		/* TODO: we need to get atim_window from upper stack
+		 * for now we set to 0 */
+		priv->rxon_timing.atim_window = 0;
+	}
+
+	interval_tm_unit =
+		(le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024);
+	result = do_div(tsf, interval_tm_unit);
+	priv->rxon_timing.beacon_init_val =
+	    cpu_to_le32((u32) ((u64) interval_tm_unit - result));
+
+	IWL_DEBUG_ASSOC
+	    ("beacon interval %d beacon timer %d beacon tim %d\n",
+		le16_to_cpu(priv->rxon_timing.beacon_interval),
+		le32_to_cpu(priv->rxon_timing.beacon_init_val),
+		le16_to_cpu(priv->rxon_timing.atim_window));
+}
+
+static int iwl_scan_initiate(struct iwl_priv *priv)
+{
+	if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
+		IWL_ERROR("APs don't scan.\n");
+		return 0;
+	}
+
+	if (!iwl_is_ready_rf(priv)) {
+		IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
+		return -EIO;
+	}
+
+	if (test_bit(STATUS_SCANNING, &priv->status)) {
+		IWL_DEBUG_SCAN("Scan already in progress.\n");
+		return -EAGAIN;
+	}
+
+	if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
+		IWL_DEBUG_SCAN("Scan request while abort pending.  "
+			       "Queuing.\n");
+		return -EAGAIN;
+	}
+
+	IWL_DEBUG_INFO("Starting scan...\n");
+	priv->scan_bands = 2;
+	set_bit(STATUS_SCANNING, &priv->status);
+	priv->scan_start = jiffies;
+	priv->scan_pass_start = priv->scan_start;
+
+	queue_work(priv->workqueue, &priv->request_scan);
+
+	return 0;
+}
+
+static int iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
+{
+	struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
+
+	if (hw_decrypt)
+		rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
+	else
+		rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
+
+	return 0;
+}
+
+static void iwl_set_flags_for_phymode(struct iwl_priv *priv, u8 phymode)
+{
+	if (phymode == MODE_IEEE80211A) {
+		priv->staging_rxon.flags &=
+		    ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
+		      | RXON_FLG_CCK_MSK);
+		priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
+	} else {
+		/* Copied from iwl_bg_post_associate() */
+		if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
+			priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
+		else
+			priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+
+		if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
+			priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+
+		priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
+		priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
+		priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK;
+	}
+}
+
+/*
+ * initilize rxon structure with default values fromm eeprom
+ */
+static void iwl_connection_init_rx_config(struct iwl_priv *priv)
+{
+	const struct iwl_channel_info *ch_info;
+
+	memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon));
+
+	switch (priv->iw_mode) {
+	case IEEE80211_IF_TYPE_AP:
+		priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP;
+		break;
+
+	case IEEE80211_IF_TYPE_STA:
+		priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS;
+		priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
+		break;
+
+	case IEEE80211_IF_TYPE_IBSS:
+		priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS;
+		priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
+		priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
+						  RXON_FILTER_ACCEPT_GRP_MSK;
+		break;
+
+	case IEEE80211_IF_TYPE_MNTR:
+		priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER;
+		priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK |
+		    RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK;
+		break;
+	}
+
+#if 0
+	/* TODO:  Figure out when short_preamble would be set and cache from
+	 * that */
+	if (!hw_to_local(priv->hw)->short_preamble)
+		priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+	else
+		priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+#endif
+
+	ch_info = iwl_get_channel_info(priv, priv->phymode,
+				       le16_to_cpu(priv->staging_rxon.channel));
+
+	if (!ch_info)
+		ch_info = &priv->channel_info[0];
+
+	/*
+	 * in some case A channels are all non IBSS
+	 * in this case force B/G channel
+	 */
+	if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
+	    !(is_channel_ibss(ch_info)))
+		ch_info = &priv->channel_info[0];
+
+	priv->staging_rxon.channel = cpu_to_le16(ch_info->channel);
+	if (is_channel_a_band(ch_info))
+		priv->phymode = MODE_IEEE80211A;
+	else
+		priv->phymode = MODE_IEEE80211G;
+
+	iwl_set_flags_for_phymode(priv, priv->phymode);
+
+	priv->staging_rxon.ofdm_basic_rates =
+	    (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
+	priv->staging_rxon.cck_basic_rates =
+	    (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
+}
+
+static int iwl_set_mode(struct iwl_priv *priv, int mode)
+{
+	if (!iwl_is_ready_rf(priv))
+		return -EAGAIN;
+
+	if (mode == IEEE80211_IF_TYPE_IBSS) {
+		const struct iwl_channel_info *ch_info;
+
+		ch_info = iwl_get_channel_info(priv,
+			priv->phymode,
+			le16_to_cpu(priv->staging_rxon.channel));
+
+		if (!ch_info || !is_channel_ibss(ch_info)) {
+			IWL_ERROR("channel %d not IBSS channel\n",
+				  le16_to_cpu(priv->staging_rxon.channel));
+			return -EINVAL;
+		}
+	}
+
+	cancel_delayed_work(&priv->scan_check);
+	if (iwl_scan_cancel_timeout(priv, 100)) {
+		IWL_WARNING("Aborted scan still in progress after 100ms\n");
+		IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
+		return -EAGAIN;
+	}
+
+	priv->iw_mode = mode;
+
+	iwl_connection_init_rx_config(priv);
+	memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
+
+	iwl_clear_stations_table(priv);
+
+	iwl_commit_rxon(priv);
+
+	return 0;
+}
+
+static void iwl_build_tx_cmd_hwcrypto(struct iwl_priv *priv,
+				      struct ieee80211_tx_control *ctl,
+				      struct iwl_cmd *cmd,
+				      struct sk_buff *skb_frag,
+				      int last_frag)
+{
+	struct iwl_hw_key *keyinfo = &priv->stations[ctl->key_idx].keyinfo;
+
+	switch (keyinfo->alg) {
+	case ALG_CCMP:
+		cmd->cmd.tx.sec_ctl = TX_CMD_SEC_CCM;
+		memcpy(cmd->cmd.tx.key, keyinfo->key, keyinfo->keylen);
+		IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
+		break;
+
+	case ALG_TKIP:
+#if 0
+		cmd->cmd.tx.sec_ctl = TX_CMD_SEC_TKIP;
+
+		if (last_frag)
+			memcpy(cmd->cmd.tx.tkip_mic.byte, skb_frag->tail - 8,
+			       8);
+		else
+			memset(cmd->cmd.tx.tkip_mic.byte, 0, 8);
+#endif
+		break;
+
+	case ALG_WEP:
+		cmd->cmd.tx.sec_ctl = TX_CMD_SEC_WEP |
+		    (ctl->key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT;
+
+		if (keyinfo->keylen == 13)
+			cmd->cmd.tx.sec_ctl |= TX_CMD_SEC_KEY128;
+
+		memcpy(&cmd->cmd.tx.key[3], keyinfo->key, keyinfo->keylen);
+
+		IWL_DEBUG_TX("Configuring packet for WEP encryption "
+			     "with key %d\n", ctl->key_idx);
+		break;
+
+	case ALG_NONE:
+		IWL_DEBUG_TX("Tx packet in the clear (encrypt requested).\n");
+		break;
+
+	default:
+		printk(KERN_ERR "Unknown encode alg %d\n", keyinfo->alg);
+		break;
+	}
+}
+
+/*
+ * handle build REPLY_TX command notification.
+ */
+static void iwl_build_tx_cmd_basic(struct iwl_priv *priv,
+				  struct iwl_cmd *cmd,
+				  struct ieee80211_tx_control *ctrl,
+				  struct ieee80211_hdr *hdr,
+				  int is_unicast, u8 std_id)
+{
+	__le16 *qc;
+	u16 fc = le16_to_cpu(hdr->frame_control);
+	__le32 tx_flags = cmd->cmd.tx.tx_flags;
+
+	cmd->cmd.tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
+	if (!(ctrl->flags & IEEE80211_TXCTL_NO_ACK)) {
+		tx_flags |= TX_CMD_FLG_ACK_MSK;
+		if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
+			tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
+		if (ieee80211_is_probe_response(fc) &&
+		    !(le16_to_cpu(hdr->seq_ctrl) & 0xf))
+			tx_flags |= TX_CMD_FLG_TSF_MSK;
+	} else {
+		tx_flags &= (~TX_CMD_FLG_ACK_MSK);
+		tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
+	}
+
+	cmd->cmd.tx.sta_id = std_id;
+	if (ieee80211_get_morefrag(hdr))
+		tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
+
+	qc = ieee80211_get_qos_ctrl(hdr);
+	if (qc) {
+		cmd->cmd.tx.tid_tspec = (u8) (le16_to_cpu(*qc) & 0xf);
+		tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK;
+	} else
+		tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
+
+	if (ctrl->flags & IEEE80211_TXCTL_USE_RTS_CTS) {
+		tx_flags |= TX_CMD_FLG_RTS_MSK;
+		tx_flags &= ~TX_CMD_FLG_CTS_MSK;
+	} else if (ctrl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) {
+		tx_flags &= ~TX_CMD_FLG_RTS_MSK;
+		tx_flags |= TX_CMD_FLG_CTS_MSK;
+	}
+
+	if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK))
+		tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
+
+	tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK);
+	if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
+		if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ ||
+		    (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_REASSOC_REQ)
+			cmd->cmd.tx.timeout.pm_frame_timeout =
+				cpu_to_le16(3);
+		else
+			cmd->cmd.tx.timeout.pm_frame_timeout =
+				cpu_to_le16(2);
+	} else
+		cmd->cmd.tx.timeout.pm_frame_timeout = 0;
+
+	cmd->cmd.tx.driver_txop = 0;
+	cmd->cmd.tx.tx_flags = tx_flags;
+	cmd->cmd.tx.next_frame_len = 0;
+}
+
+static int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
+{
+	int sta_id;
+	u16 fc = le16_to_cpu(hdr->frame_control);
+
+	/* If this frame is broadcast or not data then use the broadcast
+	 * station id */
+	if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) ||
+	    is_multicast_ether_addr(hdr->addr1))
+		return priv->hw_setting.bcast_sta_id;
+
+	switch (priv->iw_mode) {
+
+	/* If this frame is part of a BSS network (we're a station), then
+	 * we use the AP's station id */
+	case IEEE80211_IF_TYPE_STA:
+		return IWL_AP_ID;
+
+	/* If we are an AP, then find the station, or use BCAST */
+	case IEEE80211_IF_TYPE_AP:
+		sta_id = iwl_hw_find_station(priv, hdr->addr1);
+		if (sta_id != IWL_INVALID_STATION)
+			return sta_id;
+		return priv->hw_setting.bcast_sta_id;
+
+	/* If this frame is part of a IBSS network, then we use the
+	 * target specific station id */
+	case IEEE80211_IF_TYPE_IBSS:
+		sta_id = iwl_hw_find_station(priv, hdr->addr1);
+		if (sta_id != IWL_INVALID_STATION)
+			return sta_id;
+
+		sta_id = iwl_add_station(priv, hdr->addr1, 0, CMD_ASYNC);
+
+		if (sta_id != IWL_INVALID_STATION)
+			return sta_id;
+
+		IWL_DEBUG_DROP("Station " MAC_FMT " not in station map. "
+			       "Defaulting to broadcast...\n",
+			       MAC_ARG(hdr->addr1));
+		iwl_print_hex_dump(IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
+		return priv->hw_setting.bcast_sta_id;
+
+	default:
+		IWL_WARNING("Unkown mode of operation: %d", priv->iw_mode);
+		return priv->hw_setting.bcast_sta_id;
+	}
+}
+
+/*
+ * start REPLY_TX command process
+ */
+static int iwl_tx_skb(struct iwl_priv *priv,
+		      struct sk_buff *skb, struct ieee80211_tx_control *ctl)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	struct iwl_tfd_frame *tfd;
+	u32 *control_flags;
+	int txq_id = ctl->queue;
+	struct iwl_tx_queue *txq = NULL;
+	struct iwl_queue *q = NULL;
+	dma_addr_t phys_addr;
+	dma_addr_t txcmd_phys;
+	struct iwl_cmd *out_cmd = NULL;
+	u16 len, idx, len_org;
+	u8 id, hdr_len, unicast;
+	u8 sta_id;
+	u16 seq_number = 0;
+	u16 fc;
+	__le16 *qc;
+	u8 wait_write_ptr = 0;
+	unsigned long flags;
+	int rc;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	if (iwl_is_rfkill(priv)) {
+		IWL_DEBUG_DROP("Dropping - RF KILL\n");
+		goto drop_unlock;
+	}
+
+	if (!priv->interface_id) {
+		IWL_DEBUG_DROP("Dropping - !priv->interface_id\n");
+		goto drop_unlock;
+	}
+
+	if ((ctl->tx_rate & 0xFF) == IWL_INVALID_RATE) {
+		IWL_ERROR("ERROR: No TX rate available.\n");
+		goto drop_unlock;
+	}
+
+	unicast = !is_multicast_ether_addr(hdr->addr1);
+	id = 0;
+
+	fc = le16_to_cpu(hdr->frame_control);
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+	if (ieee80211_is_auth(fc))
+		IWL_DEBUG_TX("Sending AUTH frame\n");
+	else if (ieee80211_is_assoc_request(fc))
+		IWL_DEBUG_TX("Sending ASSOC frame\n");
+	else if (ieee80211_is_reassoc_request(fc))
+		IWL_DEBUG_TX("Sending REASSOC frame\n");
+#endif
+
+	if (!iwl_is_associated(priv) &&
+	    ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) {
+		IWL_DEBUG_DROP("Dropping - !iwl_is_associated\n");
+		goto drop_unlock;
+	}
+
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	hdr_len = ieee80211_get_hdrlen(fc);
+	sta_id = iwl_get_sta_id(priv, hdr);
+	if (sta_id == IWL_INVALID_STATION) {
+		IWL_DEBUG_DROP("Dropping - INVALID STATION: " MAC_FMT "\n",
+			       MAC_ARG(hdr->addr1));
+		goto drop;
+	}
+
+	IWL_DEBUG_RATE("station Id %d\n", sta_id);
+
+	qc = ieee80211_get_qos_ctrl(hdr);
+	if (qc) {
+		u8 tid = (u8)(le16_to_cpu(*qc) & 0xf);
+		seq_number = priv->stations[sta_id].tid[tid].seq_number &
+				IEEE80211_SCTL_SEQ;
+		hdr->seq_ctrl = cpu_to_le16(seq_number) |
+			(hdr->seq_ctrl &
+				__constant_cpu_to_le16(IEEE80211_SCTL_FRAG));
+		seq_number += 0x10;
+	}
+	txq = &priv->txq[txq_id];
+	q = &txq->q;
+
+	spin_lock_irqsave(&priv->lock, flags);
+
+	tfd = &txq->bd[q->first_empty];
+	memset(tfd, 0, sizeof(*tfd));
+	control_flags = (u32 *) tfd;
+	idx = get_cmd_index(q, q->first_empty, 0);
+
+	memset(&(txq->txb[q->first_empty]), 0, sizeof(struct iwl_tx_info));
+	txq->txb[q->first_empty].skb[0] = skb;
+	memcpy(&(txq->txb[q->first_empty].status.control),
+	       ctl, sizeof(struct ieee80211_tx_control));
+	out_cmd = &txq->cmd[idx];
+	memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
+	memset(&out_cmd->cmd.tx, 0, sizeof(out_cmd->cmd.tx));
+	out_cmd->hdr.cmd = REPLY_TX;
+	out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) |
+				INDEX_TO_SEQ(q->first_empty)));
+	/* copy frags header */
+	memcpy(out_cmd->cmd.tx.hdr, hdr, hdr_len);
+
+	/* hdr = (struct ieee80211_hdr *)out_cmd->cmd.tx.hdr; */
+	len = priv->hw_setting.tx_cmd_len +
+		sizeof(struct iwl_cmd_header) + hdr_len;
+
+	len_org = len;
+	len = (len + 3) & ~3;
+
+	if (len_org != len)
+		len_org = 1;
+	else
+		len_org = 0;
+
+	txcmd_phys = txq->dma_addr_cmd + sizeof(struct iwl_cmd) * idx +
+		     offsetof(struct iwl_cmd, hdr);
+
+	iwl_hw_txq_attach_buf_to_tfd(priv, tfd, txcmd_phys, len);
+
+	if (!(ctl->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT))
+		iwl_build_tx_cmd_hwcrypto(priv, ctl, out_cmd, skb, 0);
+
+	/* 802.11 null functions have no payload... */
+	len = skb->len - hdr_len;
+	if (len) {
+		phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len,
+					   len, PCI_DMA_TODEVICE);
+		iwl_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, len);
+	}
+
+	/* If there is no payload, then only one TFD is used */
+	if (!len)
+		*control_flags = TFD_CTL_COUNT_SET(1);
+	else
+		*control_flags = TFD_CTL_COUNT_SET(2) |
+			TFD_CTL_PAD_SET(U32_PAD(len));
+
+	len = (u16)skb->len;
+	out_cmd->cmd.tx.len = cpu_to_le16(len);
+
+	/* TODO need this for burst mode later on */
+	iwl_build_tx_cmd_basic(priv, out_cmd, ctl, hdr, unicast, sta_id);
+
+	/* set is_hcca to 0; it probably will never be implemented */
+	iwl_hw_build_tx_cmd_rate(priv, out_cmd, ctl, hdr, sta_id, 0);
+
+	out_cmd->cmd.tx.tx_flags &= ~TX_CMD_FLG_ANT_A_MSK;
+	out_cmd->cmd.tx.tx_flags &= ~TX_CMD_FLG_ANT_B_MSK;
+
+	if (!ieee80211_get_morefrag(hdr)) {
+		txq->need_update = 1;
+		if (qc) {
+			u8 tid = (u8)(le16_to_cpu(*qc) & 0xf);
+			priv->stations[sta_id].tid[tid].seq_number = seq_number;
+		}
+	} else {
+		wait_write_ptr = 1;
+		txq->need_update = 0;
+	}
+
+	iwl_print_hex_dump(IWL_DL_TX, out_cmd->cmd.payload,
+			   sizeof(out_cmd->cmd.tx));
+
+	iwl_print_hex_dump(IWL_DL_TX, (u8 *)out_cmd->cmd.tx.hdr,
+			   ieee80211_get_hdrlen(fc));
+
+	q->first_empty = iwl_queue_inc_wrap(q->first_empty, q->n_bd);
+	rc = iwl_tx_queue_update_write_ptr(priv, txq);
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	if (rc)
+		return rc;
+
+	if ((iwl_queue_space(q) < q->high_mark)
+	    && priv->mac80211_registered) {
+		if (wait_write_ptr) {
+			spin_lock_irqsave(&priv->lock, flags);
+			txq->need_update = 1;
+			iwl_tx_queue_update_write_ptr(priv, txq);
+			spin_unlock_irqrestore(&priv->lock, flags);
+		}
+
+		ieee80211_stop_queue(priv->hw, ctl->queue);
+	}
+
+	return 0;
+
+drop_unlock:
+	spin_unlock_irqrestore(&priv->lock, flags);
+drop:
+	return -1;
+}
+
+static void iwl_set_rate(struct iwl_priv *priv)
+{
+	const struct ieee80211_hw_mode *hw = NULL;
+	struct ieee80211_rate *rate;
+	int i;
+
+	hw = iwl_get_hw_mode(priv, priv->phymode);
+
+	priv->active_rate = 0;
+	priv->active_rate_basic = 0;
+
+	IWL_DEBUG_RATE("Setting rates for 802.11%c\n",
+		       hw->mode == MODE_IEEE80211A ?
+		       'a' : ((hw->mode == MODE_IEEE80211B) ? 'b' : 'g'));
+
+	for (i = 0; i < hw->num_rates; i++) {
+		rate = &(hw->rates[i]);
+		if ((rate->val < IWL_RATE_COUNT) &&
+		    (rate->flags & IEEE80211_RATE_SUPPORTED)) {
+			IWL_DEBUG_RATE("Adding rate index %d (plcp %d)%s\n",
+				       rate->val, iwl_rates[rate->val].plcp,
+				       (rate->flags & IEEE80211_RATE_BASIC) ?
+				       "*" : "");
+			priv->active_rate |= (1 << rate->val);
+			if (rate->flags & IEEE80211_RATE_BASIC)
+				priv->active_rate_basic |= (1 << rate->val);
+		} else
+			IWL_DEBUG_RATE("Not adding rate %d (plcp %d)\n",
+				       rate->val, iwl_rates[rate->val].plcp);
+	}
+
+	IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
+		       priv->active_rate, priv->active_rate_basic);
+
+	/*
+	 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
+	 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
+	 * OFDM
+	 */
+	if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK)
+		priv->staging_rxon.cck_basic_rates =
+		    ((priv->active_rate_basic &
+		      IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF;
+	else
+		priv->staging_rxon.cck_basic_rates =
+		    (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
+
+	if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK)
+		priv->staging_rxon.ofdm_basic_rates =
+		    ((priv->active_rate_basic &
+		      (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >>
+		      IWL_FIRST_OFDM_RATE) & 0xFF;
+	else
+		priv->staging_rxon.ofdm_basic_rates =
+		   (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
+}
+
+static void iwl_radio_kill_sw(struct iwl_priv *priv, int disable_radio)
+{
+	unsigned long flags;
+
+	if (!!disable_radio == test_bit(STATUS_RF_KILL_SW, &priv->status))
+		return;
+
+	IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
+			  disable_radio ? "OFF" : "ON");
+
+	if (disable_radio) {
+		iwl_scan_cancel(priv);
+		/* FIXME: This is a workaround for AP */
+		if (priv->iw_mode != IEEE80211_IF_TYPE_AP) {
+			spin_lock_irqsave(&priv->lock, flags);
+			iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
+				    CSR_UCODE_SW_BIT_RFKILL);
+			spin_unlock_irqrestore(&priv->lock, flags);
+			iwl_send_card_state(priv, CARD_STATE_CMD_DISABLE, 0);
+			set_bit(STATUS_RF_KILL_SW, &priv->status);
+		}
+		return;
+	}
+
+	spin_lock_irqsave(&priv->lock, flags);
+	iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+
+	clear_bit(STATUS_RF_KILL_SW, &priv->status);
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	/* wake up ucode */
+	msleep(10);
+
+	spin_lock_irqsave(&priv->lock, flags);
+	iwl_read32(priv, CSR_UCODE_DRV_GP1);
+	if (!iwl_grab_restricted_access(priv))
+		iwl_release_restricted_access(priv);
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
+		IWL_DEBUG_RF_KILL("Can not turn radio back on - "
+				  "disabled by HW switch\n");
+		return;
+	}
+
+	queue_work(priv->workqueue, &priv->restart);
+	return;
+}
+
+void iwl_set_decrypted_flag(struct iwl_priv *priv, struct sk_buff *skb,
+			    u32 decrypt_res, struct ieee80211_rx_status *stats)
+{
+	u16 fc =
+	    le16_to_cpu(((struct ieee80211_hdr *)skb->data)->frame_control);
+
+	if (priv->active_rxon.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK)
+		return;
+
+	if (!(fc & IEEE80211_FCTL_PROTECTED))
+		return;
+
+	IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res);
+	switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) {
+	case RX_RES_STATUS_SEC_TYPE_TKIP:
+		if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
+		    RX_RES_STATUS_BAD_ICV_MIC)
+			stats->flag |= RX_FLAG_MMIC_ERROR;
+	case RX_RES_STATUS_SEC_TYPE_WEP:
+	case RX_RES_STATUS_SEC_TYPE_CCMP:
+		if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
+		    RX_RES_STATUS_DECRYPT_OK) {
+			IWL_DEBUG_RX("hw decrypt successfully!!!\n");
+			stats->flag |= RX_FLAG_DECRYPTED;
+		}
+		break;
+
+	default:
+		break;
+	}
+}
+
+void iwl_handle_data_packet_monitor(struct iwl_priv *priv,
+				    struct iwl_rx_mem_buffer *rxb,
+				    void *data, short len,
+				    struct ieee80211_rx_status *stats,
+				    u16 phy_flags)
+{
+	struct iwl_rt_rx_hdr *iwl_rt;
+
+	/* First cache any information we need before we overwrite
+	 * the information provided in the skb from the hardware */
+	s8 signal = stats->ssi;
+	s8 noise = 0;
+	int rate = stats->rate;
+	u64 tsf = stats->mactime;
+	__le16 phy_flags_hw = cpu_to_le16(phy_flags);
+
+	/* We received data from the HW, so stop the watchdog */
+	if (len > IWL_RX_BUF_SIZE - sizeof(*iwl_rt)) {
+		IWL_DEBUG_DROP("Dropping too large packet in monitor\n");
+		return;
+	}
+
+	/* copy the frame data to write after where the radiotap header goes */
+	iwl_rt = (void *)rxb->skb->data;
+	memmove(iwl_rt->payload, data, len);
+
+	iwl_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
+	iwl_rt->rt_hdr.it_pad = 0; /* always good to zero */
+
+	/* total header + data */
+	iwl_rt->rt_hdr.it_len = cpu_to_le16(sizeof(*iwl_rt));
+
+	/* Set the size of the skb to the size of the frame */
+	skb_put(rxb->skb, sizeof(*iwl_rt) + len);
+
+	/* Big bitfield of all the fields we provide in radiotap */
+	iwl_rt->rt_hdr.it_present =
+	    cpu_to_le32((1 << IEEE80211_RADIOTAP_TSFT) |
+			(1 << IEEE80211_RADIOTAP_FLAGS) |
+			(1 << IEEE80211_RADIOTAP_RATE) |
+			(1 << IEEE80211_RADIOTAP_CHANNEL) |
+			(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
+			(1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) |
+			(1 << IEEE80211_RADIOTAP_ANTENNA));
+
+	/* Zero the flags, we'll add to them as we go */
+	iwl_rt->rt_flags = 0;
+
+	iwl_rt->rt_tsf = cpu_to_le64(tsf);
+
+	/* Convert to dBm */
+	iwl_rt->rt_dbmsignal = signal;
+	iwl_rt->rt_dbmnoise = noise;
+
+	/* Convert the channel frequency and set the flags */
+	iwl_rt->rt_channelMHz = cpu_to_le16(stats->freq);
+	if (!(phy_flags_hw & RX_RES_PHY_FLAGS_BAND_24_MSK))
+		iwl_rt->rt_chbitmask =
+		    cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ));
+	else if (phy_flags_hw & RX_RES_PHY_FLAGS_MOD_CCK_MSK)
+		iwl_rt->rt_chbitmask =
+		    cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ));
+	else	/* 802.11g */
+		iwl_rt->rt_chbitmask =
+		    cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ));
+
+	rate = iwl_rate_index_from_plcp(rate);
+	if (rate == -1)
+		iwl_rt->rt_rate = 0;
+	else
+		iwl_rt->rt_rate = iwl_rates[rate].ieee;
+
+	/* antenna number */
+	iwl_rt->rt_antenna =
+		le16_to_cpu(phy_flags_hw & RX_RES_PHY_FLAGS_ANTENNA_MSK) >> 4;
+
+	/* set the preamble flag if we have it */
+	if (phy_flags_hw & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
+		iwl_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
+
+	IWL_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len);
+
+	stats->flag |= RX_FLAG_RADIOTAP;
+	ieee80211_rx_irqsafe(priv->hw, rxb->skb, stats);
+	rxb->skb = NULL;
+}
+
+
+#define IWL_PACKET_RETRY_TIME HZ
+
+int is_duplicate_packet(struct iwl_priv *priv, struct ieee80211_hdr *header)
+{
+	u16 sc = le16_to_cpu(header->seq_ctrl);
+	u16 seq = (sc & IEEE80211_SCTL_SEQ) >> 4;
+	u16 frag = sc & IEEE80211_SCTL_FRAG;
+	u16 *last_seq, *last_frag;
+	unsigned long *last_time;
+
+	switch (priv->iw_mode) {
+	case IEEE80211_IF_TYPE_IBSS:{
+		struct list_head *p;
+		struct iwl_ibss_seq *entry = NULL;
+		u8 *mac = header->addr2;
+		int index = mac[5] & (IWL_IBSS_MAC_HASH_SIZE - 1);
+
+		__list_for_each(p, &priv->ibss_mac_hash[index]) {
+			entry =
+				list_entry(p, struct iwl_ibss_seq, list);
+			if (!compare_ether_addr(entry->mac, mac))
+				break;
+		}
+		if (p == &priv->ibss_mac_hash[index]) {
+			entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
+			if (!entry) {
+				IWL_ERROR
+					("Cannot malloc new mac entry\n");
+				return 0;
+			}
+			memcpy(entry->mac, mac, ETH_ALEN);
+			entry->seq_num = seq;
+			entry->frag_num = frag;
+			entry->packet_time = jiffies;
+			list_add(&entry->list,
+				 &priv->ibss_mac_hash[index]);
+			return 0;
+		}
+		last_seq = &entry->seq_num;
+		last_frag = &entry->frag_num;
+		last_time = &entry->packet_time;
+		break;
+	}
+	case IEEE80211_IF_TYPE_STA:
+		last_seq = &priv->last_seq_num;
+		last_frag = &priv->last_frag_num;
+		last_time = &priv->last_packet_time;
+		break;
+	default:
+		return 0;
+	}
+	if ((*last_seq == seq) &&
+	    time_after(*last_time + IWL_PACKET_RETRY_TIME, jiffies)) {
+		if (*last_frag == frag)
+			goto drop;
+		if (*last_frag + 1 != frag)
+			/* out-of-order fragment */
+			goto drop;
+	} else
+		*last_seq = seq;
+
+	*last_frag = frag;
+	*last_time = jiffies;
+	return 0;
+
+ drop:
+	return 1;
+}
+
+#ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT
+
+#include "iwl-spectrum.h"
+
+#define BEACON_TIME_MASK_LOW	0x00FFFFFF
+#define BEACON_TIME_MASK_HIGH	0xFF000000
+#define TIME_UNIT		1024
+
+/*
+ * extended beacon time format
+ * time in usec will be changed into a 32-bit value in 8:24 format
+ * the high 1 byte is the beacon counts
+ * the lower 3 bytes is the time in usec within one beacon interval
+ */
+
+static u32 iwl_usecs_to_beacons(u32 usec, u32 beacon_interval)
+{
+	u32 quot;
+	u32 rem;
+	u32 interval = beacon_interval * 1024;
+
+	if (!interval || !usec)
+		return 0;
+
+	quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24);
+	rem = (usec % interval) & BEACON_TIME_MASK_LOW;
+
+	return (quot << 24) + rem;
+}
+
+/* base is usually what we get from ucode with each received frame,
+ * the same as HW timer counter counting down
+ */
+
+static __le32 iwl_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
+{
+	u32 base_low = base & BEACON_TIME_MASK_LOW;
+	u32 addon_low = addon & BEACON_TIME_MASK_LOW;
+	u32 interval = beacon_interval * TIME_UNIT;
+	u32 res = (base & BEACON_TIME_MASK_HIGH) +
+	    (addon & BEACON_TIME_MASK_HIGH);
+
+	if (base_low > addon_low)
+		res += base_low - addon_low;
+	else if (base_low < addon_low) {
+		res += interval + base_low - addon_low;
+		res += (1 << 24);
+	} else
+		res += (1 << 24);
+
+	return cpu_to_le32(res);
+}
+
+static int iwl_get_measurement(struct iwl_priv *priv,
+			       struct ieee80211_measurement_params *params,
+			       u8 type)
+{
+	struct iwl_spectrum_cmd spectrum;
+	struct iwl_rx_packet *res;
+	struct iwl_host_cmd cmd = {
+		.id = REPLY_SPECTRUM_MEASUREMENT_CMD,
+		.data = (void *)&spectrum,
+		.meta.flags = CMD_WANT_SKB,
+	};
+	u32 add_time = le64_to_cpu(params->start_time);
+	int rc;
+	int spectrum_resp_status;
+	int duration = le16_to_cpu(params->duration);
+
+	if (iwl_is_associated(priv))
+		add_time =
+		    iwl_usecs_to_beacons(
+			le64_to_cpu(params->start_time) - priv->last_tsf,
+			le16_to_cpu(priv->rxon_timing.beacon_interval));
+
+	memset(&spectrum, 0, sizeof(spectrum));
+
+	spectrum.channel_count = cpu_to_le16(1);
+	spectrum.flags =
+	    RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
+	spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
+	cmd.len = sizeof(spectrum);
+	spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
+
+	if (iwl_is_associated(priv))
+		spectrum.start_time =
+		    iwl_add_beacon_time(priv->last_beacon_time,
+				add_time,
+				le16_to_cpu(priv->rxon_timing.beacon_interval));
+	else
+		spectrum.start_time = 0;
+
+	spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
+	spectrum.channels[0].channel = params->channel;
+	spectrum.channels[0].type = type;
+	if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)
+		spectrum.flags |= RXON_FLG_BAND_24G_MSK |
+		    RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
+
+	rc = iwl_send_cmd_sync(priv, &cmd);
+	if (rc)
+		return rc;
+
+	res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
+	if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+		IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
+		rc = -EIO;
+	}
+
+	spectrum_resp_status = le16_to_cpu(res->u.spectrum.status);
+	switch (spectrum_resp_status) {
+	case 0:		/* Command will be handled */
+		if (res->u.spectrum.id != 0xff) {
+			IWL_DEBUG_INFO
+			    ("Replaced existing measurement: %d\n",
+			     res->u.spectrum.id);
+			priv->measurement_status &= ~MEASUREMENT_READY;
+		}
+		priv->measurement_status |= MEASUREMENT_ACTIVE;
+		rc = 0;
+		break;
+
+	case 1:		/* Command will not be handled */
+		rc = -EAGAIN;
+		break;
+	}
+
+	dev_kfree_skb_any(cmd.meta.u.skb);
+
+	return rc;
+}
+#endif
+
+static void iwl_txstatus_to_ieee(struct iwl_priv *priv,
+				 struct iwl_tx_info *tx_sta)
+{
+
+	tx_sta->status.ack_signal = 0;
+	tx_sta->status.excessive_retries = 0;
+	tx_sta->status.queue_length = 0;
+	tx_sta->status.queue_number = 0;
+
+	if (in_interrupt())
+		ieee80211_tx_status_irqsafe(priv->hw,
+					    tx_sta->skb[0], &(tx_sta->status));
+	else
+		ieee80211_tx_status(priv->hw,
+				    tx_sta->skb[0], &(tx_sta->status));
+
+	tx_sta->skb[0] = NULL;
+}
+
+/**
+ * iwl_tx_queue_reclaim - Reclaim Tx queue entries no more used by NIC.
+ *
+ * When FW advances 'R' index, all entries between old and
+ * new 'R' index need to be reclaimed. As result, some free space
+ * forms. If there is enough free space (> low mark), wake Tx queue.
+ */
+int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index)
+{
+	struct iwl_tx_queue *txq = &priv->txq[txq_id];
+	struct iwl_queue *q = &txq->q;
+	int nfreed = 0;
+
+	if ((index >= q->n_bd) || (x2_queue_used(q, index) == 0)) {
+		IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
+			  "is out of range [0-%d] %d %d.\n", txq_id,
+			  index, q->n_bd, q->first_empty, q->last_used);
+		return 0;
+	}
+
+	for (index = iwl_queue_inc_wrap(index, q->n_bd);
+		q->last_used != index;
+		q->last_used = iwl_queue_inc_wrap(q->last_used, q->n_bd)) {
+		if (txq_id != IWL_CMD_QUEUE_NUM) {
+			iwl_txstatus_to_ieee(priv,
+					&(txq->txb[txq->q.last_used]));
+			iwl_hw_txq_free_tfd(priv, txq);
+		} else if (nfreed > 1) {
+			IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index,
+					q->first_empty, q->last_used);
+			queue_work(priv->workqueue, &priv->restart);
+		}
+		nfreed++;
+	}
+
+	if (iwl_queue_space(q) > q->low_mark && (txq_id >= 0) &&
+			(txq_id != IWL_CMD_QUEUE_NUM) &&
+			priv->mac80211_registered)
+		ieee80211_wake_queue(priv->hw, txq_id);
+
+
+	return nfreed;
+}
+
+static int iwl_is_tx_success(u32 status)
+{
+	return (status & 0xFF) == 0x1;
+}
+
+/******************************************************************************
+ *
+ * Generic RX handler implementations
+ *
+ ******************************************************************************/
+static void iwl_rx_reply_tx(struct iwl_priv *priv,
+			    struct iwl_rx_mem_buffer *rxb)
+{
+	struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+	u16 sequence = le16_to_cpu(pkt->hdr.sequence);
+	int txq_id = SEQ_TO_QUEUE(sequence);
+	int index = SEQ_TO_INDEX(sequence);
+	struct iwl_tx_queue *txq = &priv->txq[txq_id];
+	struct ieee80211_tx_status *tx_status;
+	struct iwl_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
+	u32  status = le32_to_cpu(tx_resp->status);
+
+	if ((index >= txq->q.n_bd) || (x2_queue_used(&txq->q, index) == 0)) {
+		IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
+			  "is out of range [0-%d] %d %d\n", txq_id,
+			  index, txq->q.n_bd, txq->q.first_empty,
+			  txq->q.last_used);
+		return;
+	}
+
+	tx_status = &(txq->txb[txq->q.last_used].status);
+
+	tx_status->retry_count = tx_resp->failure_frame;
+	tx_status->queue_number = status;
+	tx_status->queue_length = tx_resp->bt_kill_count;
+	tx_status->queue_length |= tx_resp->failure_rts;
+
+	tx_status->flags =
+	    iwl_is_tx_success(status) ? IEEE80211_TX_STATUS_ACK : 0;
+
+	tx_status->control.tx_rate = iwl_rate_index_from_plcp(tx_resp->rate);
+
+	IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n",
+			txq_id, iwl_get_tx_fail_reason(status), status,
+			tx_resp->rate, tx_resp->failure_frame);
+
+	IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index);
+	if (index != -1)
+		iwl_tx_queue_reclaim(priv, txq_id, index);
+
+	if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK))
+		IWL_ERROR("TODO:  Implement Tx ABORT REQUIRED!!!\n");
+}
+
+
+static void iwl_rx_reply_alive(struct iwl_priv *priv,
+			       struct iwl_rx_mem_buffer *rxb)
+{
+	struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+	struct iwl_alive_resp *palive;
+	struct delayed_work *pwork;
+
+	palive = &pkt->u.alive_frame;
+
+	IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
+		       "0x%01X 0x%01X\n",
+		       palive->is_valid, palive->ver_type,
+		       palive->ver_subtype);
+
+	if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
+		IWL_DEBUG_INFO("Initialization Alive received.\n");
+		memcpy(&priv->card_alive_init,
+		       &pkt->u.alive_frame,
+		       sizeof(struct iwl_init_alive_resp));
+		pwork = &priv->init_alive_start;
+	} else {
+		IWL_DEBUG_INFO("Runtime Alive received.\n");
+		memcpy(&priv->card_alive, &pkt->u.alive_frame,
+		       sizeof(struct iwl_alive_resp));
+		pwork = &priv->alive_start;
+		iwl_disable_events(priv);
+	}
+
+	/* We delay the ALIVE response by 5ms to
+	 * give the HW RF Kill time to activate... */
+	if (palive->is_valid == UCODE_VALID_OK)
+		queue_delayed_work(priv->workqueue, pwork,
+				   msecs_to_jiffies(5));
+	else
+		IWL_WARNING("uCode did not respond OK.\n");
+}
+
+static void iwl_rx_reply_add_sta(struct iwl_priv *priv,
+				 struct iwl_rx_mem_buffer *rxb)
+{
+	struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+
+	IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status);
+	return;
+}
+
+static void iwl_rx_reply_error(struct iwl_priv *priv,
+			       struct iwl_rx_mem_buffer *rxb)
+{
+	struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+
+	IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
+		"seq 0x%04X ser 0x%08X\n",
+		le32_to_cpu(pkt->u.err_resp.error_type),
+		get_cmd_string(pkt->u.err_resp.cmd_id),
+		pkt->u.err_resp.cmd_id,
+		le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
+		le32_to_cpu(pkt->u.err_resp.error_info));
+}
+
+#define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
+
+static void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
+{
+	struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+	struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon;
+	struct iwl_csa_notification *csa = &(pkt->u.csa_notif);
+	IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
+		      le16_to_cpu(csa->channel), le32_to_cpu(csa->status));
+	rxon->channel = csa->channel;
+	priv->staging_rxon.channel = csa->channel;
+}
+
+static void iwl_rx_spectrum_measure_notif(struct iwl_priv *priv,
+					  struct iwl_rx_mem_buffer *rxb)
+{
+#ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT
+	struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+	struct iwl_spectrum_notification *report = &(pkt->u.spectrum_notif);
+
+	if (!report->state) {
+		IWL_DEBUG(IWL_DL_11H | IWL_DL_INFO,
+			  "Spectrum Measure Notification: Start\n");
+		return;
+	}
+
+	memcpy(&priv->measure_report, report, sizeof(*report));
+	priv->measurement_status |= MEASUREMENT_READY;
+#endif
+}
+
+static void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
+				  struct iwl_rx_mem_buffer *rxb)
+{
+#ifdef CONFIG_IWLWIFI_DEBUG
+	struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+	struct iwl_sleep_notification *sleep = &(pkt->u.sleep_notif);
+	IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
+		     sleep->pm_sleep_mode, sleep->pm_wakeup_src);
+#endif
+}
+
+static void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
+					     struct iwl_rx_mem_buffer *rxb)
+{
+	struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+	IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
+			"notification for %s:\n",
+			le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
+	iwl_print_hex_dump(IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
+}
+
+static void iwl_bg_beacon_update(struct work_struct *work)
+{
+	struct iwl_priv *priv =
+		container_of(work, struct iwl_priv, beacon_update);
+	struct sk_buff *beacon;
+
+	/* Pull updated AP beacon from mac80211. will fail if not in AP mode */
+	beacon = ieee80211_beacon_get(priv->hw, priv->interface_id, NULL);
+
+	if (!beacon) {
+		IWL_ERROR("update beacon failed\n");
+		return;
+	}
+
+	mutex_lock(&priv->mutex);
+	/* new beacon skb is allocated every time; dispose previous.*/
+	if (priv->ibss_beacon)
+		dev_kfree_skb(priv->ibss_beacon);
+
+	priv->ibss_beacon = beacon;
+	mutex_unlock(&priv->mutex);
+
+	iwl_send_beacon_cmd(priv);
+}
+
+static void iwl_rx_beacon_notif(struct iwl_priv *priv,
+				struct iwl_rx_mem_buffer *rxb)
+{
+#ifdef CONFIG_IWLWIFI_DEBUG
+	struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+	struct iwl_beacon_notif *beacon = &(pkt->u.beacon_status);
+	u8 rate = beacon->beacon_notify_hdr.rate;
+
+	IWL_DEBUG_RX("beacon status %x retries %d iss %d "
+		"tsf %d %d rate %d\n",
+		le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK,
+		beacon->beacon_notify_hdr.failure_frame,
+		le32_to_cpu(beacon->ibss_mgr_status),
+		le32_to_cpu(beacon->high_tsf),
+		le32_to_cpu(beacon->low_tsf), rate);
+#endif
+
+	if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
+	    (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
+		queue_work(priv->workqueue, &priv->beacon_update);
+}
+
+/* Service response to REPLY_SCAN_CMD (0x80) */
+static void iwl_rx_reply_scan(struct iwl_priv *priv,
+			      struct iwl_rx_mem_buffer *rxb)
+{
+#ifdef CONFIG_IWLWIFI_DEBUG
+	struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+	struct iwl_scanreq_notification *notif =
+	    (struct iwl_scanreq_notification *)pkt->u.raw;
+
+	IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status);
+#endif
+}
+
+/* Service SCAN_START_NOTIFICATION (0x82) */
+static void iwl_rx_scan_start_notif(struct iwl_priv *priv,
+				    struct iwl_rx_mem_buffer *rxb)
+{
+	struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+	struct iwl_scanstart_notification *notif =
+	    (struct iwl_scanstart_notification *)pkt->u.raw;
+	priv->scan_start_tsf = le32_to_cpu(notif->tsf_low);
+	IWL_DEBUG_SCAN("Scan start: "
+		       "%d [802.11%s] "
+		       "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
+		       notif->channel,
+		       notif->band ? "bg" : "a",
+		       notif->tsf_high,
+		       notif->tsf_low, notif->status, notif->beacon_timer);
+}
+
+/* Service SCAN_RESULTS_NOTIFICATION (0x83) */
+static void iwl_rx_scan_results_notif(struct iwl_priv *priv,
+				      struct iwl_rx_mem_buffer *rxb)
+{
+	struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+	struct iwl_scanresults_notification *notif =
+	    (struct iwl_scanresults_notification *)pkt->u.raw;
+
+	IWL_DEBUG_SCAN("Scan ch.res: "
+		       "%d [802.11%s] "
+		       "(TSF: 0x%08X:%08X) - %d "
+		       "elapsed=%lu usec (%dms since last)\n",
+		       notif->channel,
+		       notif->band ? "bg" : "a",
+		       le32_to_cpu(notif->tsf_high),
+		       le32_to_cpu(notif->tsf_low),
+		       le32_to_cpu(notif->statistics[0]),
+		       le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf,
+		       jiffies_to_msecs(elapsed_jiffies
+					(priv->last_scan_jiffies, jiffies)));
+
+	priv->last_scan_jiffies = jiffies;
+}
+
+/* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
+static void iwl_rx_scan_complete_notif(struct iwl_priv *priv,
+				       struct iwl_rx_mem_buffer *rxb)
+{
+	struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+	struct iwl_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
+
+	IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
+		       scan_notif->scanned_channels,
+		       scan_notif->tsf_low,
+		       scan_notif->tsf_high, scan_notif->status);
+
+	/* The HW is no longer scanning */
+	clear_bit(STATUS_SCAN_HW, &priv->status);
+
+	/* The scan completion notification came in, so kill that timer... */
+	cancel_delayed_work(&priv->scan_check);
+
+	IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
+		       (priv->scan_bands == 2) ? "2.4" : "5.2",
+		       jiffies_to_msecs(elapsed_jiffies
+					(priv->scan_pass_start, jiffies)));
+
+	/* Remove this scanned band from the list
+	 * of pending bands to scan */
+	priv->scan_bands--;
+
+	/* If a request to abort was given, or the scan did not succeed
+	 * then we reset the scan state machine and terminate,
+	 * re-queuing another scan if one has been requested */
+	if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
+		IWL_DEBUG_INFO("Aborted scan completed.\n");
+		clear_bit(STATUS_SCAN_ABORTING, &priv->status);
+	} else {
+		/* If there are more bands on this scan pass reschedule */
+		if (priv->scan_bands > 0)
+			goto reschedule;
+	}
+
+	priv->last_scan_jiffies = jiffies;
+	IWL_DEBUG_INFO("Setting scan to off\n");
+
+	clear_bit(STATUS_SCANNING, &priv->status);
+
+	IWL_DEBUG_INFO("Scan took %dms\n",
+		jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies)));
+
+	queue_work(priv->workqueue, &priv->scan_completed);
+
+	return;
+
+reschedule:
+	priv->scan_pass_start = jiffies;
+	queue_work(priv->workqueue, &priv->request_scan);
+}
+
+/* Handle notification from uCode that card's power state is changing
+ * due to software, hardware, or critical temperature RFKILL */
+static void iwl_rx_card_state_notif(struct iwl_priv *priv,
+				    struct iwl_rx_mem_buffer *rxb)
+{
+	struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+	u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
+	unsigned long status = priv->status;
+
+	IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
+			  (flags & HW_CARD_DISABLED) ? "Kill" : "On",
+			  (flags & SW_CARD_DISABLED) ? "Kill" : "On");
+
+	iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
+		    CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+
+	if (flags & HW_CARD_DISABLED)
+		set_bit(STATUS_RF_KILL_HW, &priv->status);
+	else
+		clear_bit(STATUS_RF_KILL_HW, &priv->status);
+
+
+	if (flags & SW_CARD_DISABLED)
+		set_bit(STATUS_RF_KILL_SW, &priv->status);
+	else
+		clear_bit(STATUS_RF_KILL_SW, &priv->status);
+
+	iwl_scan_cancel(priv);
+
+	if ((test_bit(STATUS_RF_KILL_HW, &status) !=
+	     test_bit(STATUS_RF_KILL_HW, &priv->status)) ||
+	    (test_bit(STATUS_RF_KILL_SW, &status) !=
+	     test_bit(STATUS_RF_KILL_SW, &priv->status)))
+		queue_work(priv->workqueue, &priv->rf_kill);
+	else
+		wake_up_interruptible(&priv->wait_command_queue);
+}
+
+/**
+ * iwl_setup_rx_handlers - Initialize Rx handler callbacks
+ *
+ * Setup the RX handlers for each of the reply types sent from the uCode
+ * to the host.
+ *
+ * This function chains into the hardware specific files for them to setup
+ * any hardware specific handlers as well.
+ */
+static void iwl_setup_rx_handlers(struct iwl_priv *priv)
+{
+	priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive;
+	priv->rx_handlers[REPLY_ADD_STA] = iwl_rx_reply_add_sta;
+	priv->rx_handlers[REPLY_ERROR] = iwl_rx_reply_error;
+	priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_rx_csa;
+	priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] =
+	    iwl_rx_spectrum_measure_notif;
+	priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_rx_pm_sleep_notif;
+	priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
+	    iwl_rx_pm_debug_statistics_notif;
+	priv->rx_handlers[BEACON_NOTIFICATION] = iwl_rx_beacon_notif;
+
+	/* NOTE:  iwl_rx_statistics is different based on whether
+	 * the build is for the 3945 or the 4965.  See the
+	 * corresponding implementation in iwl-XXXX.c
+	 *
+	 * The same handler is used for both the REPLY to a
+	 * discrete statistics request from the host as well as
+	 * for the periodic statistics notification from the uCode
+	 */
+	priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl_hw_rx_statistics;
+	priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl_hw_rx_statistics;
+
+	priv->rx_handlers[REPLY_SCAN_CMD] = iwl_rx_reply_scan;
+	priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl_rx_scan_start_notif;
+	priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] =
+	    iwl_rx_scan_results_notif;
+	priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] =
+	    iwl_rx_scan_complete_notif;
+	priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl_rx_card_state_notif;
+	priv->rx_handlers[REPLY_TX] = iwl_rx_reply_tx;
+
+	/* Setup hardware specific Rx handlers */
+	iwl_hw_rx_handler_setup(priv);
+}
+
+/**
+ * iwl_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
+ * @rxb: Rx buffer to reclaim
+ *
+ * If an Rx buffer has an async callback associated with it the callback
+ * will be executed.  The attached skb (if present) will only be freed
+ * if the callback returns 1
+ */
+static void iwl_tx_cmd_complete(struct iwl_priv *priv,
+				struct iwl_rx_mem_buffer *rxb)
+{
+	struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+	u16 sequence = le16_to_cpu(pkt->hdr.sequence);
+	int txq_id = SEQ_TO_QUEUE(sequence);
+	int index = SEQ_TO_INDEX(sequence);
+	int huge = sequence & SEQ_HUGE_FRAME;
+	int cmd_index;
+	struct iwl_cmd *cmd;
+
+	/* If a Tx command is being handled and it isn't in the actual
+	 * command queue then there a command routing bug has been introduced
+	 * in the queue management code. */
+	if (txq_id != IWL_CMD_QUEUE_NUM)
+		IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
+			  txq_id, pkt->hdr.cmd);
+	BUG_ON(txq_id != IWL_CMD_QUEUE_NUM);
+
+	cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge);
+	cmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index];
+
+	/* Input error checking is done when commands are added to queue. */
+	if (cmd->meta.flags & CMD_WANT_SKB) {
+		cmd->meta.source->u.skb = rxb->skb;
+		rxb->skb = NULL;
+	} else if (cmd->meta.u.callback &&
+		   !cmd->meta.u.callback(priv, cmd, rxb->skb))
+		rxb->skb = NULL;
+
+	iwl_tx_queue_reclaim(priv, txq_id, index);
+
+	if (!(cmd->meta.flags & CMD_ASYNC)) {
+		clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
+		wake_up_interruptible(&priv->wait_command_queue);
+	}
+}
+
+/************************** RX-FUNCTIONS ****************************/
+/*
+ * Rx theory of operation
+ *
+ * The host allocates 32 DMA target addresses and passes the host address
+ * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
+ * 0 to 31
+ *
+ * Rx Queue Indexes
+ * The host/firmware share two index registers for managing the Rx buffers.
+ *
+ * The READ index maps to the first position that the firmware may be writing
+ * to -- the driver can read up to (but not including) this position and get
+ * good data.
+ * The READ index is managed by the firmware once the card is enabled.
+ *
+ * The WRITE index maps to the last position the driver has read from -- the
+ * position preceding WRITE is the last slot the firmware can place a packet.
+ *
+ * The queue is empty (no good data) if WRITE = READ - 1, and is full if
+ * WRITE = READ.
+ *
+ * During initialization the host sets up the READ queue position to the first
+ * INDEX position, and WRITE to the last (READ - 1 wrapped)
+ *
+ * When the firmware places a packet in a buffer it will advance the READ index
+ * and fire the RX interrupt.  The driver can then query the READ index and
+ * process as many packets as possible, moving the WRITE index forward as it
+ * resets the Rx queue buffers with new memory.
+ *
+ * The management in the driver is as follows:
+ * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free.  When
+ *   iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
+ *   to replensish the iwl->rxq->rx_free.
+ * + In iwl_rx_replenish (scheduled) if 'processed' != 'read' then the
+ *   iwl->rxq is replenished and the READ INDEX is updated (updating the
+ *   'processed' and 'read' driver indexes as well)
+ * + A received packet is processed and handed to the kernel network stack,
+ *   detached from the iwl->rxq.  The driver 'processed' index is updated.
+ * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
+ *   list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
+ *   INDEX is not incremented and iwl->status(RX_STALLED) is set.  If there
+ *   were enough free buffers and RX_STALLED is set it is cleared.
+ *
+ *
+ * Driver sequence:
+ *
+ * iwl_rx_queue_alloc()       Allocates rx_free
+ * iwl_rx_replenish()         Replenishes rx_free list from rx_used, and calls
+ *                            iwl_rx_queue_restock
+ * iwl_rx_queue_restock()     Moves available buffers from rx_free into Rx
+ *                            queue, updates firmware pointers, and updates
+ *                            the WRITE index.  If insufficient rx_free buffers
+ *                            are available, schedules iwl_rx_replenish
+ *
+ * -- enable interrupts --
+ * ISR - iwl_rx()             Detach iwl_rx_mem_buffers from pool up to the
+ *                            READ INDEX, detaching the SKB from the pool.
+ *                            Moves the packet buffer from queue to rx_used.
+ *                            Calls iwl_rx_queue_restock to refill any empty
+ *                            slots.
+ * ...
+ *
+ */
+
+/**
+ * iwl_rx_queue_space - Return number of free slots available in queue.
+ */
+static int iwl_rx_queue_space(const struct iwl_rx_queue *q)
+{
+	int s = q->read - q->write;
+	if (s <= 0)
+		s += RX_QUEUE_SIZE;
+	/* keep some buffer to not confuse full and empty queue */
+	s -= 2;
+	if (s < 0)
+		s = 0;
+	return s;
+}
+
+/**
+ * iwl_rx_queue_update_write_ptr - Update the write pointer for the RX queue
+ *
+ * NOTE: This function has 3945 and 4965 specific code sections
+ * but is declared in base due to the majority of the
+ * implementation being the same (only a numeric constant is
+ * different)
+ *
+ */
+int iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl_rx_queue *q)
+{
+	u32 reg = 0;
+	int rc = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&q->lock, flags);
+
+	if (q->need_update == 0)
+		goto exit_unlock;
+
+	if (test_bit(STATUS_POWER_PMI, &priv->status)) {
+		reg = iwl_read32(priv, CSR_UCODE_DRV_GP1);
+
+		if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
+			iwl_set_bit(priv, CSR_GP_CNTRL,
+				    CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+			goto exit_unlock;
+		}
+
+		rc = iwl_grab_restricted_access(priv);
+		if (rc)
+			goto exit_unlock;
+
+		iwl_write_restricted(priv, FH_RSCSR_CHNL0_WPTR,
+				     q->write & ~0x7);
+		iwl_release_restricted_access(priv);
+	} else
+		iwl_write32(priv, FH_RSCSR_CHNL0_WPTR, q->write & ~0x7);
+
+
+	q->need_update = 0;
+
+ exit_unlock:
+	spin_unlock_irqrestore(&q->lock, flags);
+	return rc;
+}
+
+/**
+ * iwl_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer pointer.
+ *
+ * NOTE: This function has 3945 and 4965 specific code paths in it.
+ */
+static inline __le32 iwl_dma_addr2rbd_ptr(struct iwl_priv *priv,
+					  dma_addr_t dma_addr)
+{
+	return cpu_to_le32((u32)dma_addr);
+}
+
+/**
+ * iwl_rx_queue_restock - refill RX queue from pre-allocated pool
+ *
+ * If there are slots in the RX queue that  need to be restocked,
+ * and we have free pre-allocated buffers, fill the ranks as much
+ * as we can pulling from rx_free.
+ *
+ * This moves the 'write' index forward to catch up with 'processed', and
+ * also updates the memory address in the firmware to reference the new
+ * target buffer.
+ */
+int iwl_rx_queue_restock(struct iwl_priv *priv)
+{
+	struct iwl_rx_queue *rxq = &priv->rxq;
+	struct list_head *element;
+	struct iwl_rx_mem_buffer *rxb;
+	unsigned long flags;
+	int write, rc;
+
+	spin_lock_irqsave(&rxq->lock, flags);
+	write = rxq->write & ~0x7;
+	while ((iwl_rx_queue_space(rxq) > 0) && (rxq->free_count)) {
+		element = rxq->rx_free.next;
+		rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
+		list_del(element);
+		rxq->bd[rxq->write] = iwl_dma_addr2rbd_ptr(priv, rxb->dma_addr);
+		rxq->queue[rxq->write] = rxb;
+		rxq->write = (rxq->write + 1) & RX_QUEUE_MASK;
+		rxq->free_count--;
+	}
+	spin_unlock_irqrestore(&rxq->lock, flags);
+	/* If the pre-allocated buffer pool is dropping low, schedule to
+	 * refill it */
+	if (rxq->free_count <= RX_LOW_WATERMARK)
+		queue_work(priv->workqueue, &priv->rx_replenish);
+
+
+	/* If we've added more space for the firmware to place data, tell it */
+	if ((write != (rxq->write & ~0x7))
+	    || (abs(rxq->write - rxq->read) > 7)) {
+		spin_lock_irqsave(&rxq->lock, flags);
+		rxq->need_update = 1;
+		spin_unlock_irqrestore(&rxq->lock, flags);
+		rc = iwl_rx_queue_update_write_ptr(priv, rxq);
+		if (rc)
+			return rc;
+	}
+
+	return 0;
+}
+
+/**
+ * iwl_rx_replensih - Move all used packet from rx_used to rx_free
+ *
+ * When moving to rx_free an SKB is allocated for the slot.
+ *
+ * Also restock the Rx queue via iwl_rx_queue_restock.
+ * This is called as a scheduled work item (except for during intialization)
+ */
+void iwl_rx_replenish(void *data)
+{
+	struct iwl_priv *priv = data;
+	struct iwl_rx_queue *rxq = &priv->rxq;
+	struct list_head *element;
+	struct iwl_rx_mem_buffer *rxb;
+	unsigned long flags;
+	spin_lock_irqsave(&rxq->lock, flags);
+	while (!list_empty(&rxq->rx_used)) {
+		element = rxq->rx_used.next;
+		rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
+		rxb->skb =
+		    alloc_skb(IWL_RX_BUF_SIZE, __GFP_NOWARN | GFP_ATOMIC);
+		if (!rxb->skb) {
+			if (net_ratelimit())
+				printk(KERN_CRIT DRV_NAME
+				       ": Can not allocate SKB buffers\n");
+			/* We don't reschedule replenish work here -- we will
+			 * call the restock method and if it still needs
+			 * more buffers it will schedule replenish */
+			break;
+		}
+		priv->alloc_rxb_skb++;
+		list_del(element);
+		rxb->dma_addr =
+		    pci_map_single(priv->pci_dev, rxb->skb->data,
+				   IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
+		list_add_tail(&rxb->list, &rxq->rx_free);
+		rxq->free_count++;
+	}
+	spin_unlock_irqrestore(&rxq->lock, flags);
+
+	spin_lock_irqsave(&priv->lock, flags);
+	iwl_rx_queue_restock(priv);
+	spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+/* Assumes that the skb field of the buffers in 'pool' is kept accurate.
+ * If an SKB has been detached, the POOL needs to have it's SKB set to NULL
+ * This free routine walks the list of POOL entries and if SKB is set to
+ * non NULL it is unmapped and freed
+ */
+void iwl_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
+{
+	int i;
+	for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
+		if (rxq->pool[i].skb != NULL) {
+			pci_unmap_single(priv->pci_dev,
+					 rxq->pool[i].dma_addr,
+					 IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
+			dev_kfree_skb(rxq->pool[i].skb);
+		}
+	}
+
+	pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd,
+			    rxq->dma_addr);
+	rxq->bd = NULL;
+}
+
+int iwl_rx_queue_alloc(struct iwl_priv *priv)
+{
+	struct iwl_rx_queue *rxq = &priv->rxq;
+	struct pci_dev *dev = priv->pci_dev;
+	int i;
+
+	spin_lock_init(&rxq->lock);
+	INIT_LIST_HEAD(&rxq->rx_free);
+	INIT_LIST_HEAD(&rxq->rx_used);
+	rxq->bd = pci_alloc_consistent(dev, 4 * RX_QUEUE_SIZE, &rxq->dma_addr);
+	if (!rxq->bd)
+		return -ENOMEM;
+	/* Fill the rx_used queue with _all_ of the Rx buffers */
+	for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
+		list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
+	/* Set us so that we have processed and used all buffers, but have
+	 * not restocked the Rx queue with fresh buffers */
+	rxq->read = rxq->write = 0;
+	rxq->free_count = 0;
+	rxq->need_update = 0;
+	return 0;
+}
+
+void iwl_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
+{
+	unsigned long flags;
+	int i;
+	spin_lock_irqsave(&rxq->lock, flags);
+	INIT_LIST_HEAD(&rxq->rx_free);
+	INIT_LIST_HEAD(&rxq->rx_used);
+	/* Fill the rx_used queue with _all_ of the Rx buffers */
+	for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
+		/* In the reset function, these buffers may have been allocated
+		 * to an SKB, so we need to unmap and free potential storage */
+		if (rxq->pool[i].skb != NULL) {
+			pci_unmap_single(priv->pci_dev,
+					 rxq->pool[i].dma_addr,
+					 IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
+			priv->alloc_rxb_skb--;
+			dev_kfree_skb(rxq->pool[i].skb);
+			rxq->pool[i].skb = NULL;
+		}
+		list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
+	}
+
+	/* Set us so that we have processed and used all buffers, but have
+	 * not restocked the Rx queue with fresh buffers */
+	rxq->read = rxq->write = 0;
+	rxq->free_count = 0;
+	spin_unlock_irqrestore(&rxq->lock, flags);
+}
+
+/* Convert linear signal-to-noise ratio into dB */
+static u8 ratio2dB[100] = {
+/*	 0   1   2   3   4   5   6   7   8   9 */
+	 0,  0,  6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
+	20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
+	26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
+	29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
+	32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
+	34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
+	36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
+	37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
+	38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
+	39, 39, 39, 39, 39, 40, 40, 40, 40, 40  /* 90 - 99 */
+};
+
+/* Calculates a relative dB value from a ratio of linear
+ *   (i.e. not dB) signal levels.
+ * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
+int iwl_calc_db_from_ratio(int sig_ratio)
+{
+	/* Anything above 1000:1 just report as 60 dB */
+	if (sig_ratio > 1000)
+		return 60;
+
+	/* Above 100:1, divide by 10 and use table,
+	 *   add 20 dB to make up for divide by 10 */
+	if (sig_ratio > 100)
+		return (20 + (int)ratio2dB[sig_ratio/10]);
+
+	/* We shouldn't see this */
+	if (sig_ratio < 1)
+		return 0;
+
+	/* Use table for ratios 1:1 - 99:1 */
+	return (int)ratio2dB[sig_ratio];
+}
+
+#define PERFECT_RSSI (-20) /* dBm */
+#define WORST_RSSI (-95)   /* dBm */
+#define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
+
+/* Calculate an indication of rx signal quality (a percentage, not dBm!).
+ * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
+ *   about formulas used below. */
+int iwl_calc_sig_qual(int rssi_dbm, int noise_dbm)
+{
+	int sig_qual;
+	int degradation = PERFECT_RSSI - rssi_dbm;
+
+	/* If we get a noise measurement, use signal-to-noise ratio (SNR)
+	 * as indicator; formula is (signal dbm - noise dbm).
+	 * SNR at or above 40 is a great signal (100%).
+	 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
+	 * Weakest usable signal is usually 10 - 15 dB SNR. */
+	if (noise_dbm) {
+		if (rssi_dbm - noise_dbm >= 40)
+			return 100;
+		else if (rssi_dbm < noise_dbm)
+			return 0;
+		sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2;
+
+	/* Else use just the signal level.
+	 * This formula is a least squares fit of data points collected and
+	 *   compared with a reference system that had a percentage (%) display
+	 *   for signal quality. */
+	} else
+		sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation *
+			    (15 * RSSI_RANGE + 62 * degradation)) /
+			   (RSSI_RANGE * RSSI_RANGE);
+
+	if (sig_qual > 100)
+		sig_qual = 100;
+	else if (sig_qual < 1)
+		sig_qual = 0;
+
+	return sig_qual;
+}
+
+/**
+ * iwl_rx_handle - Main entry function for receiving responses from the uCode
+ *
+ * Uses the priv->rx_handlers callback function array to invoke
+ * the appropriate handlers, including command responses,
+ * frame-received notifications, and other notifications.
+ */
+static void iwl_rx_handle(struct iwl_priv *priv)
+{
+	struct iwl_rx_mem_buffer *rxb;
+	struct iwl_rx_packet *pkt;
+	struct iwl_rx_queue *rxq = &priv->rxq;
+	u32 r, i;
+	int reclaim;
+	unsigned long flags;
+
+	r = iwl_hw_get_rx_read(priv);
+	i = rxq->read;
+
+	/* Rx interrupt, but nothing sent from uCode */
+	if (i == r)
+		IWL_DEBUG(IWL_DL_RX | IWL_DL_ISR, "r = %d, i = %d\n", r, i);
+
+	while (i != r) {
+		rxb = rxq->queue[i];
+
+		/* If an RXB doesn't have a queue slot associated with it
+		 * then a bug has been introduced in the queue refilling
+		 * routines -- catch it here */
+		BUG_ON(rxb == NULL);
+
+		rxq->queue[i] = NULL;
+
+		pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
+					    IWL_RX_BUF_SIZE,
+					    PCI_DMA_FROMDEVICE);
+		pkt = (struct iwl_rx_packet *)rxb->skb->data;
+
+		/* Reclaim a command buffer only if this packet is a response
+		 *   to a (driver-originated) command.
+		 * If the packet (e.g. Rx frame) originated from uCode,
+		 *   there is no command buffer to reclaim.
+		 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
+		 *   but apparently a few don't get set; catch them here. */
+		reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
+			(pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
+			(pkt->hdr.cmd != REPLY_TX);
+
+		/* Based on type of command response or notification,
+		 *   handle those that need handling via function in
+		 *   rx_handlers table.  See iwl_setup_rx_handlers() */
+		if (priv->rx_handlers[pkt->hdr.cmd]) {
+			IWL_DEBUG(IWL_DL_HOST_COMMAND | IWL_DL_RX | IWL_DL_ISR,
+				"r = %d, i = %d, %s, 0x%02x\n", r, i,
+				get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
+			priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
+		} else {
+			/* No handling needed */
+			IWL_DEBUG(IWL_DL_HOST_COMMAND | IWL_DL_RX | IWL_DL_ISR,
+				"r %d i %d No handler needed for %s, 0x%02x\n",
+				r, i, get_cmd_string(pkt->hdr.cmd),
+				pkt->hdr.cmd);
+		}
+
+		if (reclaim) {
+			/* Invoke any callbacks, transfer the skb to caller,
+			 * and fire off the (possibly) blocking iwl_send_cmd()
+			 * as we reclaim the driver command queue */
+			if (rxb && rxb->skb)
+				iwl_tx_cmd_complete(priv, rxb);
+			else
+				IWL_WARNING("Claim null rxb?\n");
+		}
+
+		/* For now we just don't re-use anything.  We can tweak this
+		 * later to try and re-use notification packets and SKBs that
+		 * fail to Rx correctly */
+		if (rxb->skb != NULL) {
+			priv->alloc_rxb_skb--;
+			dev_kfree_skb_any(rxb->skb);
+			rxb->skb = NULL;
+		}
+
+		pci_unmap_single(priv->pci_dev, rxb->dma_addr,
+				 IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
+		spin_lock_irqsave(&rxq->lock, flags);
+		list_add_tail(&rxb->list, &priv->rxq.rx_used);
+		spin_unlock_irqrestore(&rxq->lock, flags);
+		i = (i + 1) & RX_QUEUE_MASK;
+	}
+
+	/* Backtrack one entry */
+	priv->rxq.read = i;
+	iwl_rx_queue_restock(priv);
+}
+
+int iwl_tx_queue_update_write_ptr(struct iwl_priv *priv,
+				  struct iwl_tx_queue *txq)
+{
+	u32 reg = 0;
+	int rc = 0;
+	int txq_id = txq->q.id;
+
+	if (txq->need_update == 0)
+		return rc;
+
+	/* if we're trying to save power */
+	if (test_bit(STATUS_POWER_PMI, &priv->status)) {
+		/* wake up nic if it's powered down ...
+		 * uCode will wake up, and interrupt us again, so next
+		 * time we'll skip this part. */
+		reg = iwl_read32(priv, CSR_UCODE_DRV_GP1);
+
+		if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
+			IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg);
+			iwl_set_bit(priv, CSR_GP_CNTRL,
+				    CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+			return rc;
+		}
+
+		/* restore this queue's parameters in nic hardware. */
+		rc = iwl_grab_restricted_access(priv);
+		if (rc)
+			return rc;
+		iwl_write_restricted(priv, HBUS_TARG_WRPTR,
+				     txq->q.first_empty | (txq_id << 8));
+		iwl_release_restricted_access(priv);
+
+	/* else not in power-save mode, uCode will never sleep when we're
+	 * trying to tx (during RFKILL, we're not trying to tx). */
+	} else
+		iwl_write32(priv, HBUS_TARG_WRPTR,
+			    txq->q.first_empty | (txq_id << 8));
+
+	txq->need_update = 0;
+
+	return rc;
+}
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+static void iwl_print_rx_config_cmd(struct iwl_rxon_cmd *rxon)
+{
+	IWL_DEBUG_RADIO("RX CONFIG:\n");
+	iwl_print_hex_dump(IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
+	IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
+	IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
+	IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
+			le32_to_cpu(rxon->filter_flags));
+	IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type);
+	IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
+			rxon->ofdm_basic_rates);
+	IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
+	IWL_DEBUG_RADIO("u8[6] node_addr: " MAC_FMT "\n",
+			MAC_ARG(rxon->node_addr));
+	IWL_DEBUG_RADIO("u8[6] bssid_addr: " MAC_FMT "\n",
+			MAC_ARG(rxon->bssid_addr));
+	IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
+}
+#endif
+
+static void iwl_enable_interrupts(struct iwl_priv *priv)
+{
+	IWL_DEBUG_ISR("Enabling interrupts\n");
+	set_bit(STATUS_INT_ENABLED, &priv->status);
+	iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK);
+}
+
+static inline void iwl_disable_interrupts(struct iwl_priv *priv)
+{
+	clear_bit(STATUS_INT_ENABLED, &priv->status);
+
+	/* disable interrupts from uCode/NIC to host */
+	iwl_write32(priv, CSR_INT_MASK, 0x00000000);
+
+	/* acknowledge/clear/reset any interrupts still pending
+	 * from uCode or flow handler (Rx/Tx DMA) */
+	iwl_write32(priv, CSR_INT, 0xffffffff);
+	iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
+	IWL_DEBUG_ISR("Disabled interrupts\n");
+}
+
+static const char *desc_lookup(int i)
+{
+	switch (i) {
+	case 1:
+		return "FAIL";
+	case 2:
+		return "BAD_PARAM";
+	case 3:
+		return "BAD_CHECKSUM";
+	case 4:
+		return "NMI_INTERRUPT";
+	case 5:
+		return "SYSASSERT";
+	case 6:
+		return "FATAL_ERROR";
+	}
+
+	return "UNKNOWN";
+}
+
+#define ERROR_START_OFFSET  (1 * sizeof(u32))
+#define ERROR_ELEM_SIZE     (7 * sizeof(u32))
+
+static void iwl_dump_nic_error_log(struct iwl_priv *priv)
+{
+	u32 i;
+	u32 desc, time, count, base, data1;
+	u32 blink1, blink2, ilink1, ilink2;
+	int rc;
+
+	base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
+
+	if (!iwl_hw_valid_rtc_data_addr(base)) {
+		IWL_ERROR("Not valid error log pointer 0x%08X\n", base);
+		return;
+	}
+
+	rc = iwl_grab_restricted_access(priv);
+	if (rc) {
+		IWL_WARNING("Can not read from adapter at this time.\n");
+		return;
+	}
+
+	count = iwl_read_restricted_mem(priv, base);
+
+	if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
+		IWL_ERROR("Start IWL Error Log Dump:\n");
+		IWL_ERROR("Status: 0x%08lX, Config: %08X count: %d\n",
+			  priv->status, priv->config, count);
+	}
+
+	IWL_ERROR("Desc       Time       asrtPC  blink2 "
+		  "ilink1  nmiPC   Line\n");
+	for (i = ERROR_START_OFFSET;
+	     i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET;
+	     i += ERROR_ELEM_SIZE) {
+		desc = iwl_read_restricted_mem(priv, base + i);
+		time =
+		    iwl_read_restricted_mem(priv, base + i + 1 * sizeof(u32));
+		blink1 =
+		    iwl_read_restricted_mem(priv, base + i + 2 * sizeof(u32));
+		blink2 =
+		    iwl_read_restricted_mem(priv, base + i + 3 * sizeof(u32));
+		ilink1 =
+		    iwl_read_restricted_mem(priv, base + i + 4 * sizeof(u32));
+		ilink2 =
+		    iwl_read_restricted_mem(priv, base + i + 5 * sizeof(u32));
+		data1 =
+		    iwl_read_restricted_mem(priv, base + i + 6 * sizeof(u32));
+
+		IWL_ERROR
+		    ("%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
+		     desc_lookup(desc), desc, time, blink1, blink2,
+		     ilink1, ilink2, data1);
+	}
+
+	iwl_release_restricted_access(priv);
+
+}
+
+#define EVENT_START_OFFSET  (4 * sizeof(u32))
+
+/**
+ * iwl_print_event_log - Dump error event log to syslog
+ *
+ * NOTE: Must be called with iwl_grab_restricted_access() already obtained!
+ */
+static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
+				u32 num_events, u32 mode)
+{
+	u32 i;
+	u32 base;       /* SRAM byte address of event log header */
+	u32 event_size;	/* 2 u32s, or 3 u32s if timestamp recorded */
+	u32 ptr;        /* SRAM byte address of log data */
+	u32 ev, time, data; /* event log data */
+
+	if (num_events == 0)
+		return;
+
+	base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
+
+	if (mode == 0)
+		event_size = 2 * sizeof(u32);
+	else
+		event_size = 3 * sizeof(u32);
+
+	ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
+
+	/* "time" is actually "data" for mode 0 (no timestamp).
+	 * place event id # at far right for easier visual parsing. */
+	for (i = 0; i < num_events; i++) {
+		ev = iwl_read_restricted_mem(priv, ptr);
+		ptr += sizeof(u32);
+		time = iwl_read_restricted_mem(priv, ptr);
+		ptr += sizeof(u32);
+		if (mode == 0)
+			IWL_ERROR("0x%08x\t%04u\n", time, ev); /* data, ev */
+		else {
+			data = iwl_read_restricted_mem(priv, ptr);
+			ptr += sizeof(u32);
+			IWL_ERROR("%010u\t0x%08x\t%04u\n", time, data, ev);
+		}
+	}
+}
+
+static void iwl_dump_nic_event_log(struct iwl_priv *priv)
+{
+	int rc;
+	u32 base;       /* SRAM byte address of event log header */
+	u32 capacity;   /* event log capacity in # entries */
+	u32 mode;       /* 0 - no timestamp, 1 - timestamp recorded */
+	u32 num_wraps;  /* # times uCode wrapped to top of log */
+	u32 next_entry; /* index of next entry to be written by uCode */
+	u32 size;       /* # entries that we'll print */
+
+	base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
+	if (!iwl_hw_valid_rtc_data_addr(base)) {
+		IWL_ERROR("Invalid event log pointer 0x%08X\n", base);
+		return;
+	}
+
+	rc = iwl_grab_restricted_access(priv);
+	if (rc) {
+		IWL_WARNING("Can not read from adapter at this time.\n");
+		return;
+	}
+
+	/* event log header */
+	capacity = iwl_read_restricted_mem(priv, base);
+	mode = iwl_read_restricted_mem(priv, base + (1 * sizeof(u32)));
+	num_wraps = iwl_read_restricted_mem(priv, base + (2 * sizeof(u32)));
+	next_entry = iwl_read_restricted_mem(priv, base + (3 * sizeof(u32)));
+
+	size = num_wraps ? capacity : next_entry;
+
+	/* bail out if nothing in log */
+	if (size == 0) {
+		IWL_ERROR("Start IPW Event Log Dump: nothing in log\n");
+		iwl_release_restricted_access(priv);
+		return;
+	}
+
+	IWL_ERROR("Start IPW Event Log Dump: display count %d, wraps %d\n",
+		  size, num_wraps);
+
+	/* if uCode has wrapped back to top of log, start at the oldest entry,
+	 * i.e the next one that uCode would fill. */
+	if (num_wraps)
+		iwl_print_event_log(priv, next_entry,
+				    capacity - next_entry, mode);
+
+	/* (then/else) start at top of log */
+	iwl_print_event_log(priv, 0, next_entry, mode);
+
+	iwl_release_restricted_access(priv);
+}
+
+/**
+ * iwl_irq_handle_error - called for HW or SW error interrupt from card
+ */
+static void iwl_irq_handle_error(struct iwl_priv *priv)
+{
+	/* Set the FW error flag -- cleared on iwl_down */
+	set_bit(STATUS_FW_ERROR, &priv->status);
+
+	/* Cancel currently queued command. */
+	clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+	if (iwl_debug_level & IWL_DL_FW_ERRORS) {
+		iwl_dump_nic_error_log(priv);
+		iwl_dump_nic_event_log(priv);
+		iwl_print_rx_config_cmd(&priv->staging_rxon);
+	}
+#endif
+
+	wake_up_interruptible(&priv->wait_command_queue);
+
+	/* Keep the restart process from trying to send host
+	 * commands by clearing the INIT status bit */
+	clear_bit(STATUS_READY, &priv->status);
+
+	if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
+		IWL_DEBUG(IWL_DL_INFO | IWL_DL_FW_ERRORS,
+			  "Restarting adapter due to uCode error.\n");
+
+		if (iwl_is_associated(priv)) {
+			memcpy(&priv->recovery_rxon, &priv->active_rxon,
+			       sizeof(priv->recovery_rxon));
+			priv->error_recovering = 1;
+		}
+		queue_work(priv->workqueue, &priv->restart);
+	}
+}
+
+static void iwl_error_recovery(struct iwl_priv *priv)
+{
+	unsigned long flags;
+
+	memcpy(&priv->staging_rxon, &priv->recovery_rxon,
+	       sizeof(priv->staging_rxon));
+	priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+	iwl_commit_rxon(priv);
+
+	iwl_rxon_add_station(priv, priv->bssid, 1);
+
+	spin_lock_irqsave(&priv->lock, flags);
+	priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id);
+	priv->error_recovering = 0;
+	spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static void iwl_irq_tasklet(struct iwl_priv *priv)
+{
+	u32 inta, handled = 0;
+	u32 inta_fh;
+	unsigned long flags;
+#ifdef CONFIG_IWLWIFI_DEBUG
+	u32 inta_mask;
+#endif
+
+	spin_lock_irqsave(&priv->lock, flags);
+
+	/* Ack/clear/reset pending uCode interrupts.
+	 * Note:  Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
+	 *  and will clear only when CSR_FH_INT_STATUS gets cleared. */
+	inta = iwl_read32(priv, CSR_INT);
+	iwl_write32(priv, CSR_INT, inta);
+
+	/* Ack/clear/reset pending flow-handler (DMA) interrupts.
+	 * Any new interrupts that happen after this, either while we're
+	 * in this tasklet, or later, will show up in next ISR/tasklet. */
+	inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
+	iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+	if (iwl_debug_level & IWL_DL_ISR) {
+		inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
+		IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
+			      inta, inta_mask, inta_fh);
+	}
+#endif
+
+	/* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
+	 * atomic, make sure that inta covers all the interrupts that
+	 * we've discovered, even if FH interrupt came in just after
+	 * reading CSR_INT. */
+	if (inta_fh & CSR_FH_INT_RX_MASK)
+		inta |= CSR_INT_BIT_FH_RX;
+	if (inta_fh & CSR_FH_INT_TX_MASK)
+		inta |= CSR_INT_BIT_FH_TX;
+
+	/* Now service all interrupt bits discovered above. */
+	if (inta & CSR_INT_BIT_HW_ERR) {
+		IWL_ERROR("Microcode HW error detected.  Restarting.\n");
+
+		/* Tell the device to stop sending interrupts */
+		iwl_disable_interrupts(priv);
+
+		iwl_irq_handle_error(priv);
+
+		handled |= CSR_INT_BIT_HW_ERR;
+
+		spin_unlock_irqrestore(&priv->lock, flags);
+
+		return;
+	}
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+	if (iwl_debug_level & (IWL_DL_ISR)) {
+		/* NIC fires this, but we don't use it, redundant with WAKEUP */
+		if (inta & CSR_INT_BIT_MAC_CLK_ACTV)
+			IWL_DEBUG_ISR("Microcode started or stopped.\n");
+
+		/* Alive notification via Rx interrupt will do the real work */
+		if (inta & CSR_INT_BIT_ALIVE)
+			IWL_DEBUG_ISR("Alive interrupt\n");
+	}
+#endif
+	/* Safely ignore these bits for debug checks below */
+	inta &= ~(CSR_INT_BIT_MAC_CLK_ACTV | CSR_INT_BIT_ALIVE);
+
+	/* HW RF KILL switch toggled (4965 only) */
+	if (inta & CSR_INT_BIT_RF_KILL) {
+		int hw_rf_kill = 0;
+		if (!(iwl_read32(priv, CSR_GP_CNTRL) &
+				CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
+			hw_rf_kill = 1;
+
+		IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL | IWL_DL_ISR,
+				"RF_KILL bit toggled to %s.\n",
+				hw_rf_kill ? "disable radio":"enable radio");
+
+		/* Queue restart only if RF_KILL switch was set to "kill"
+		 *   when we loaded driver, and is now set to "enable".
+		 * After we're Alive, RF_KILL gets handled by
+		 *   iwl_rx_card_state_notif() */
+		if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status))
+			queue_work(priv->workqueue, &priv->restart);
+
+		handled |= CSR_INT_BIT_RF_KILL;
+	}
+
+	/* Chip got too hot and stopped itself (4965 only) */
+	if (inta & CSR_INT_BIT_CT_KILL) {
+		IWL_ERROR("Microcode CT kill error detected.\n");
+		handled |= CSR_INT_BIT_CT_KILL;
+	}
+
+	/* Error detected by uCode */
+	if (inta & CSR_INT_BIT_SW_ERR) {
+		IWL_ERROR("Microcode SW error detected.  Restarting 0x%X.\n",
+			  inta);
+		iwl_irq_handle_error(priv);
+		handled |= CSR_INT_BIT_SW_ERR;
+	}
+
+	/* uCode wakes up after power-down sleep */
+	if (inta & CSR_INT_BIT_WAKEUP) {
+		IWL_DEBUG_ISR("Wakeup interrupt\n");
+		iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
+		iwl_tx_queue_update_write_ptr(priv, &priv->txq[0]);
+		iwl_tx_queue_update_write_ptr(priv, &priv->txq[1]);
+		iwl_tx_queue_update_write_ptr(priv, &priv->txq[2]);
+		iwl_tx_queue_update_write_ptr(priv, &priv->txq[3]);
+		iwl_tx_queue_update_write_ptr(priv, &priv->txq[4]);
+		iwl_tx_queue_update_write_ptr(priv, &priv->txq[5]);
+
+		handled |= CSR_INT_BIT_WAKEUP;
+	}
+
+	/* All uCode command responses, including Tx command responses,
+	 * Rx "responses" (frame-received notification), and other
+	 * notifications from uCode come through here*/
+	if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
+		iwl_rx_handle(priv);
+		handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
+	}
+
+	if (inta & CSR_INT_BIT_FH_TX) {
+		IWL_DEBUG_ISR("Tx interrupt\n");
+
+		iwl_write32(priv, CSR_FH_INT_STATUS, (1 << 6));
+		if (!iwl_grab_restricted_access(priv)) {
+			iwl_write_restricted(priv,
+					     FH_TCSR_CREDIT
+					     (ALM_FH_SRVC_CHNL), 0x0);
+			iwl_release_restricted_access(priv);
+		}
+		handled |= CSR_INT_BIT_FH_TX;
+	}
+
+	if (inta & ~handled)
+		IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
+
+	if (inta & ~CSR_INI_SET_MASK) {
+		IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
+			 inta & ~CSR_INI_SET_MASK);
+		IWL_WARNING("   with FH_INT = 0x%08x\n", inta_fh);
+	}
+
+	/* Re-enable all interrupts */
+	iwl_enable_interrupts(priv);
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+	if (iwl_debug_level & (IWL_DL_ISR)) {
+		inta = iwl_read32(priv, CSR_INT);
+		inta_mask = iwl_read32(priv, CSR_INT_MASK);
+		inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
+		IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
+			"flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
+	}
+#endif
+	spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static irqreturn_t iwl_isr(int irq, void *data)
+{
+	struct iwl_priv *priv = data;
+	u32 inta, inta_mask;
+	u32 inta_fh;
+	if (!priv)
+		return IRQ_NONE;
+
+	spin_lock(&priv->lock);
+
+	/* Disable (but don't clear!) interrupts here to avoid
+	 *    back-to-back ISRs and sporadic interrupts from our NIC.
+	 * If we have something to service, the tasklet will re-enable ints.
+	 * If we *don't* have something, we'll re-enable before leaving here. */
+	inta_mask = iwl_read32(priv, CSR_INT_MASK);  /* just for debug */
+	iwl_write32(priv, CSR_INT_MASK, 0x00000000);
+
+	/* Discover which interrupts are active/pending */
+	inta = iwl_read32(priv, CSR_INT);
+	inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
+
+	/* Ignore interrupt if there's nothing in NIC to service.
+	 * This may be due to IRQ shared with another device,
+	 * or due to sporadic interrupts thrown from our NIC. */
+	if (!inta && !inta_fh) {
+		IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
+		goto none;
+	}
+
+	if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
+		/* Hardware disappeared */
+		IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta);
+		goto none;
+	}
+
+	IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
+		      inta, inta_mask, inta_fh);
+
+	/* iwl_irq_tasklet() will service interrupts and re-enable them */
+	tasklet_schedule(&priv->irq_tasklet);
+	spin_unlock(&priv->lock);
+
+	return IRQ_HANDLED;
+
+ none:
+	/* re-enable interrupts here since we don't have anything to service. */
+	iwl_enable_interrupts(priv);
+	spin_unlock(&priv->lock);
+	return IRQ_NONE;
+}
+
+/************************** EEPROM BANDS ****************************
+ *
+ * The iwl_eeprom_band definitions below provide the mapping from the
+ * EEPROM contents to the specific channel number supported for each
+ * band.
+ *
+ * For example, iwl_priv->eeprom.band_3_channels[4] from the band_3
+ * definition below maps to physical channel 42 in the 5.2GHz spectrum.
+ * The specific geography and calibration information for that channel
+ * is contained in the eeprom map itself.
+ *
+ * During init, we copy the eeprom information and channel map
+ * information into priv->channel_info_24/52 and priv->channel_map_24/52
+ *
+ * channel_map_24/52 provides the index in the channel_info array for a
+ * given channel.  We have to have two separate maps as there is channel
+ * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
+ * band_2
+ *
+ * A value of 0xff stored in the channel_map indicates that the channel
+ * is not supported by the hardware at all.
+ *
+ * A value of 0xfe in the channel_map indicates that the channel is not
+ * valid for Tx with the current hardware.  This means that
+ * while the system can tune and receive on a given channel, it may not
+ * be able to associate or transmit any frames on that
+ * channel.  There is no corresponding channel information for that
+ * entry.
+ *
+ *********************************************************************/
+
+/* 2.4 GHz */
+static const u8 iwl_eeprom_band_1[14] = {
+	1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
+};
+
+/* 5.2 GHz bands */
+static const u8 iwl_eeprom_band_2[] = {
+	183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
+};
+
+static const u8 iwl_eeprom_band_3[] = {	/* 5205-5320MHz */
+	34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
+};
+
+static const u8 iwl_eeprom_band_4[] = {	/* 5500-5700MHz */
+	100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
+};
+
+static const u8 iwl_eeprom_band_5[] = {	/* 5725-5825MHz */
+	145, 149, 153, 157, 161, 165
+};
+
+static void iwl_init_band_reference(const struct iwl_priv *priv, int band,
+				    int *eeprom_ch_count,
+				    const struct iwl_eeprom_channel
+				    **eeprom_ch_info,
+				    const u8 **eeprom_ch_index)
+{
+	switch (band) {
+	case 1:		/* 2.4GHz band */
+		*eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_1);
+		*eeprom_ch_info = priv->eeprom.band_1_channels;
+		*eeprom_ch_index = iwl_eeprom_band_1;
+		break;
+	case 2:		/* 5.2GHz band */
+		*eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_2);
+		*eeprom_ch_info = priv->eeprom.band_2_channels;
+		*eeprom_ch_index = iwl_eeprom_band_2;
+		break;
+	case 3:		/* 5.2GHz band */
+		*eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_3);
+		*eeprom_ch_info = priv->eeprom.band_3_channels;
+		*eeprom_ch_index = iwl_eeprom_band_3;
+		break;
+	case 4:		/* 5.2GHz band */
+		*eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_4);
+		*eeprom_ch_info = priv->eeprom.band_4_channels;
+		*eeprom_ch_index = iwl_eeprom_band_4;
+		break;
+	case 5:		/* 5.2GHz band */
+		*eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_5);
+		*eeprom_ch_info = priv->eeprom.band_5_channels;
+		*eeprom_ch_index = iwl_eeprom_band_5;
+		break;
+	default:
+		BUG();
+		return;
+	}
+}
+
+const struct iwl_channel_info *iwl_get_channel_info(const struct iwl_priv *priv,
+						    int phymode, u16 channel)
+{
+	int i;
+
+	switch (phymode) {
+	case MODE_IEEE80211A:
+		for (i = 14; i < priv->channel_count; i++) {
+			if (priv->channel_info[i].channel == channel)
+				return &priv->channel_info[i];
+		}
+		break;
+
+	case MODE_IEEE80211B:
+	case MODE_IEEE80211G:
+		if (channel >= 1 && channel <= 14)
+			return &priv->channel_info[channel - 1];
+		break;
+
+	}
+
+	return NULL;
+}
+
+#define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
+			    ? # x " " : "")
+
+static int iwl_init_channel_map(struct iwl_priv *priv)
+{
+	int eeprom_ch_count = 0;
+	const u8 *eeprom_ch_index = NULL;
+	const struct iwl_eeprom_channel *eeprom_ch_info = NULL;
+	int band, ch;
+	struct iwl_channel_info *ch_info;
+
+	if (priv->channel_count) {
+		IWL_DEBUG_INFO("Channel map already initialized.\n");
+		return 0;
+	}
+
+	if (priv->eeprom.version < 0x2f) {
+		IWL_WARNING("Unsupported EEPROM version: 0x%04X\n",
+			    priv->eeprom.version);
+		return -EINVAL;
+	}
+
+	IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
+
+	priv->channel_count =
+	    ARRAY_SIZE(iwl_eeprom_band_1) +
+	    ARRAY_SIZE(iwl_eeprom_band_2) +
+	    ARRAY_SIZE(iwl_eeprom_band_3) +
+	    ARRAY_SIZE(iwl_eeprom_band_4) +
+	    ARRAY_SIZE(iwl_eeprom_band_5);
+
+	IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv->channel_count);
+
+	priv->channel_info = kzalloc(sizeof(struct iwl_channel_info) *
+				     priv->channel_count, GFP_KERNEL);
+	if (!priv->channel_info) {
+		IWL_ERROR("Could not allocate channel_info\n");
+		priv->channel_count = 0;
+		return -ENOMEM;
+	}
+
+	ch_info = priv->channel_info;
+
+	/* Loop through the 5 EEPROM bands adding them in order to the
+	 * channel map we maintain (that contains additional information than
+	 * what just in the EEPROM) */
+	for (band = 1; band <= 5; band++) {
+
+		iwl_init_band_reference(priv, band, &eeprom_ch_count,
+					&eeprom_ch_info, &eeprom_ch_index);
+
+		/* Loop through each band adding each of the channels */
+		for (ch = 0; ch < eeprom_ch_count; ch++) {
+			ch_info->channel = eeprom_ch_index[ch];
+			ch_info->phymode = (band == 1) ? MODE_IEEE80211B :
+			    MODE_IEEE80211A;
+
+			/* permanently store EEPROM's channel regulatory flags
+			 *   and max power in channel info database. */
+			ch_info->eeprom = eeprom_ch_info[ch];
+
+			/* Copy the run-time flags so they are there even on
+			 * invalid channels */
+			ch_info->flags = eeprom_ch_info[ch].flags;
+
+			if (!(is_channel_valid(ch_info))) {
+				IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - "
+					       "No traffic\n",
+					       ch_info->channel,
+					       ch_info->flags,
+					       is_channel_a_band(ch_info) ?
+					       "5.2" : "2.4");
+				ch_info++;
+				continue;
+			}
+
+			/* Initialize regulatory-based run-time data */
+			ch_info->max_power_avg = ch_info->curr_txpow =
+			    eeprom_ch_info[ch].max_power_avg;
+			ch_info->scan_power = eeprom_ch_info[ch].max_power_avg;
+			ch_info->min_power = 0;
+
+			IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
+				       " %ddBm): Ad-Hoc %ssupported\n",
+				       ch_info->channel,
+				       is_channel_a_band(ch_info) ?
+				       "5.2" : "2.4",
+				       CHECK_AND_PRINT(IBSS),
+				       CHECK_AND_PRINT(ACTIVE),
+				       CHECK_AND_PRINT(RADAR),
+				       CHECK_AND_PRINT(WIDE),
+				       CHECK_AND_PRINT(NARROW),
+				       CHECK_AND_PRINT(DFS),
+				       eeprom_ch_info[ch].flags,
+				       eeprom_ch_info[ch].max_power_avg,
+				       ((eeprom_ch_info[ch].
+					 flags & EEPROM_CHANNEL_IBSS)
+					&& !(eeprom_ch_info[ch].
+					     flags & EEPROM_CHANNEL_RADAR))
+				       ? "" : "not ");
+
+			/* Set the user_txpower_limit to the highest power
+			 * supported by any channel */
+			if (eeprom_ch_info[ch].max_power_avg >
+			    priv->user_txpower_limit)
+				priv->user_txpower_limit =
+				    eeprom_ch_info[ch].max_power_avg;
+
+			ch_info++;
+		}
+	}
+
+	if (iwl3945_txpower_set_from_eeprom(priv))
+		return -EIO;
+
+	return 0;
+}
+
+/* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
+ * sending probe req.  This should be set long enough to hear probe responses
+ * from more than one AP.  */
+#define IWL_ACTIVE_DWELL_TIME_24    (20)	/* all times in msec */
+#define IWL_ACTIVE_DWELL_TIME_52    (10)
+
+/* For faster active scanning, scan will move to the next channel if fewer than
+ * PLCP_QUIET_THRESH packets are heard on this channel within
+ * ACTIVE_QUIET_TIME after sending probe request.  This shortens the dwell
+ * time if it's a quiet channel (nothing responded to our probe, and there's
+ * no other traffic).
+ * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
+#define IWL_PLCP_QUIET_THRESH       __constant_cpu_to_le16(1)	/* packets */
+#define IWL_ACTIVE_QUIET_TIME       __constant_cpu_to_le16(5)	/* msec */
+
+/* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
+ * Must be set longer than active dwell time.
+ * For the most reliable scan, set > AP beacon interval (typically 100msec). */
+#define IWL_PASSIVE_DWELL_TIME_24   (20)	/* all times in msec */
+#define IWL_PASSIVE_DWELL_TIME_52   (10)
+#define IWL_PASSIVE_DWELL_BASE      (100)
+#define IWL_CHANNEL_TUNE_TIME       5
+
+static inline u16 iwl_get_active_dwell_time(struct iwl_priv *priv, int phymode)
+{
+	if (phymode == MODE_IEEE80211A)
+		return IWL_ACTIVE_DWELL_TIME_52;
+	else
+		return IWL_ACTIVE_DWELL_TIME_24;
+}
+
+static u16 iwl_get_passive_dwell_time(struct iwl_priv *priv, int phymode)
+{
+	u16 active = iwl_get_active_dwell_time(priv, phymode);
+	u16 passive = (phymode != MODE_IEEE80211A) ?
+	    IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 :
+	    IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52;
+
+	if (iwl_is_associated(priv)) {
+		/* If we're associated, we clamp the maximum passive
+		 * dwell time to be 98% of the beacon interval (minus
+		 * 2 * channel tune time) */
+		passive = priv->beacon_int;
+		if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive)
+			passive = IWL_PASSIVE_DWELL_BASE;
+		passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2;
+	}
+
+	if (passive <= active)
+		passive = active + 1;
+
+	return passive;
+}
+
+static int iwl_get_channels_for_scan(struct iwl_priv *priv, int phymode,
+				     u8 is_active, u8 direct_mask,
+				     struct iwl_scan_channel *scan_ch)
+{
+	const struct ieee80211_channel *channels = NULL;
+	const struct ieee80211_hw_mode *hw_mode;
+	const struct iwl_channel_info *ch_info;
+	u16 passive_dwell = 0;
+	u16 active_dwell = 0;
+	int added, i;
+
+	hw_mode = iwl_get_hw_mode(priv, phymode);
+	if (!hw_mode)
+		return 0;
+
+	channels = hw_mode->channels;
+
+	active_dwell = iwl_get_active_dwell_time(priv, phymode);
+	passive_dwell = iwl_get_passive_dwell_time(priv, phymode);
+
+	for (i = 0, added = 0; i < hw_mode->num_channels; i++) {
+		if (channels[i].chan ==
+		    le16_to_cpu(priv->active_rxon.channel)) {
+			if (iwl_is_associated(priv)) {
+				IWL_DEBUG_SCAN
+				    ("Skipping current channel %d\n",
+				     le16_to_cpu(priv->active_rxon.channel));
+				continue;
+			}
+		} else if (priv->only_active_channel)
+			continue;
+
+		scan_ch->channel = channels[i].chan;
+
+		ch_info = iwl_get_channel_info(priv, phymode, scan_ch->channel);
+		if (!is_channel_valid(ch_info)) {
+			IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
+				       scan_ch->channel);
+			continue;
+		}
+
+		if (!is_active || is_channel_passive(ch_info) ||
+		    !(channels[i].flag & IEEE80211_CHAN_W_ACTIVE_SCAN))
+			scan_ch->type = 0;	/* passive */
+		else
+			scan_ch->type = 1;	/* active */
+
+		if (scan_ch->type & 1)
+			scan_ch->type |= (direct_mask << 1);
+
+		if (is_channel_narrow(ch_info))
+			scan_ch->type |= (1 << 7);
+
+		scan_ch->active_dwell = cpu_to_le16(active_dwell);
+		scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
+
+		/* Set power levels to defaults */
+		scan_ch->tpc.dsp_atten = 110;
+		/* scan_pwr_info->tpc.dsp_atten; */
+
+		/*scan_pwr_info->tpc.tx_gain; */
+		if (phymode == MODE_IEEE80211A)
+			scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3;
+		else {
+			scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3));
+			/* NOTE: if we were doing 6Mb OFDM for scans we'd use
+			 * power level
+			 scan_ch->tpc.tx_gain = ((1<<5) | (2 << 3)) | 3;
+			 */
+		}
+
+		IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
+			       scan_ch->channel,
+			       (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE",
+			       (scan_ch->type & 1) ?
+			       active_dwell : passive_dwell);
+
+		scan_ch++;
+		added++;
+	}
+
+	IWL_DEBUG_SCAN("total channels to scan %d \n", added);
+	return added;
+}
+
+static void iwl_reset_channel_flag(struct iwl_priv *priv)
+{
+	int i, j;
+	for (i = 0; i < 3; i++) {
+		struct ieee80211_hw_mode *hw_mode = (void *)&priv->modes[i];
+		for (j = 0; j < hw_mode->num_channels; j++)
+			hw_mode->channels[j].flag = hw_mode->channels[j].val;
+	}
+}
+
+static void iwl_init_hw_rates(struct iwl_priv *priv,
+			      struct ieee80211_rate *rates)
+{
+	int i;
+
+	for (i = 0; i < IWL_RATE_COUNT; i++) {
+		rates[i].rate = iwl_rates[i].ieee * 5;
+		rates[i].val = i; /* Rate scaling will work on indexes */
+		rates[i].val2 = i;
+		rates[i].flags = IEEE80211_RATE_SUPPORTED;
+		/* Only OFDM have the bits-per-symbol set */
+		if ((i <= IWL_LAST_OFDM_RATE) && (i >= IWL_FIRST_OFDM_RATE))
+			rates[i].flags |= IEEE80211_RATE_OFDM;
+		else {
+			/*
+			 * If CCK 1M then set rate flag to CCK else CCK_2
+			 * which is CCK | PREAMBLE2
+			 */
+			rates[i].flags |= (iwl_rates[i].plcp == 10) ?
+				IEEE80211_RATE_CCK : IEEE80211_RATE_CCK_2;
+		}
+
+		/* Set up which ones are basic rates... */
+		if (IWL_BASIC_RATES_MASK & (1 << i))
+			rates[i].flags |= IEEE80211_RATE_BASIC;
+	}
+}
+
+/**
+ * iwl_init_geos - Initialize mac80211's geo/channel info based from eeprom
+ */
+static int iwl_init_geos(struct iwl_priv *priv)
+{
+	struct iwl_channel_info *ch;
+	struct ieee80211_hw_mode *modes;
+	struct ieee80211_channel *channels;
+	struct ieee80211_channel *geo_ch;
+	struct ieee80211_rate *rates;
+	int i = 0;
+	enum {
+		A = 0,
+		B = 1,
+		G = 2,
+	};
+	int mode_count = 3;
+
+	if (priv->modes) {
+		IWL_DEBUG_INFO("Geography modes already initialized.\n");
+		set_bit(STATUS_GEO_CONFIGURED, &priv->status);
+		return 0;
+	}
+
+	modes = kzalloc(sizeof(struct ieee80211_hw_mode) * mode_count,
+			GFP_KERNEL);
+	if (!modes)
+		return -ENOMEM;
+
+	channels = kzalloc(sizeof(struct ieee80211_channel) *
+			   priv->channel_count, GFP_KERNEL);
+	if (!channels) {
+		kfree(modes);
+		return -ENOMEM;
+	}
+
+	rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_MAX_RATES + 1)),
+			GFP_KERNEL);
+	if (!rates) {
+		kfree(modes);
+		kfree(channels);
+		return -ENOMEM;
+	}
+
+	/* 0 = 802.11a
+	 * 1 = 802.11b
+	 * 2 = 802.11g
+	 */
+
+	/* 5.2GHz channels start after the 2.4GHz channels */
+	modes[A].mode = MODE_IEEE80211A;
+	modes[A].channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)];
+	modes[A].rates = rates;
+	modes[A].num_rates = 8;	/* just OFDM */
+	modes[A].num_channels = 0;
+
+	modes[B].mode = MODE_IEEE80211B;
+	modes[B].channels = channels;
+	modes[B].rates = &rates[8];
+	modes[B].num_rates = 4;	/* just CCK */
+	modes[B].num_channels = 0;
+
+	modes[G].mode = MODE_IEEE80211G;
+	modes[G].channels = channels;
+	modes[G].rates = rates;
+	modes[G].num_rates = 12;	/* OFDM & CCK */
+	modes[G].num_channels = 0;
+
+	priv->ieee_channels = channels;
+	priv->ieee_rates = rates;
+
+	iwl_init_hw_rates(priv, rates);
+
+	for (i = 0, geo_ch = channels; i < priv->channel_count; i++) {
+		ch = &priv->channel_info[i];
+
+		if (!is_channel_valid(ch)) {
+			IWL_DEBUG_INFO("Channel %d [%sGHz] is restricted -- "
+				    "skipping.\n",
+				    ch->channel, is_channel_a_band(ch) ?
+				    "5.2" : "2.4");
+			continue;
+		}
+
+		if (is_channel_a_band(ch))
+			geo_ch = &modes[A].channels[modes[A].num_channels++];
+		else {
+			geo_ch = &modes[B].channels[modes[B].num_channels++];
+			modes[G].num_channels++;
+		}
+
+		geo_ch->freq = ieee80211chan2mhz(ch->channel);
+		geo_ch->chan = ch->channel;
+		geo_ch->power_level = ch->max_power_avg;
+		geo_ch->antenna_max = 0xff;
+
+		if (is_channel_valid(ch)) {
+			geo_ch->flag = IEEE80211_CHAN_W_SCAN;
+			if (ch->flags & EEPROM_CHANNEL_IBSS)
+				geo_ch->flag |= IEEE80211_CHAN_W_IBSS;
+
+			if (ch->flags & EEPROM_CHANNEL_ACTIVE)
+				geo_ch->flag |= IEEE80211_CHAN_W_ACTIVE_SCAN;
+
+			if (ch->flags & EEPROM_CHANNEL_RADAR)
+				geo_ch->flag |= IEEE80211_CHAN_W_RADAR_DETECT;
+
+			if (ch->max_power_avg > priv->max_channel_txpower_limit)
+				priv->max_channel_txpower_limit =
+				    ch->max_power_avg;
+		}
+
+		geo_ch->val = geo_ch->flag;
+	}
+
+	if ((modes[A].num_channels == 0) && priv->is_abg) {
+		printk(KERN_INFO DRV_NAME
+		       ": Incorrectly detected BG card as ABG.  Please send "
+		       "your PCI ID 0x%04X:0x%04X to maintainer.\n",
+		       priv->pci_dev->device, priv->pci_dev->subsystem_device);
+		priv->is_abg = 0;
+	}
+
+	printk(KERN_INFO DRV_NAME
+	       ": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
+	       modes[G].num_channels, modes[A].num_channels);
+
+	/*
+	 * NOTE:  We register these in preference of order -- the
+	 * stack doesn't currently (as of 7.0.6 / Apr 24 '07) pick
+	 * a phymode based on rates or AP capabilities but seems to
+	 * configure it purely on if the channel being configured
+	 * is supported by a mode -- and the first match is taken
+	 */
+
+	if (modes[G].num_channels)
+		ieee80211_register_hwmode(priv->hw, &modes[G]);
+	if (modes[B].num_channels)
+		ieee80211_register_hwmode(priv->hw, &modes[B]);
+	if (modes[A].num_channels)
+		ieee80211_register_hwmode(priv->hw, &modes[A]);
+
+	priv->modes = modes;
+	set_bit(STATUS_GEO_CONFIGURED, &priv->status);
+
+	return 0;
+}
+
+/******************************************************************************
+ *
+ * uCode download functions
+ *
+ ******************************************************************************/
+
+static void iwl_dealloc_ucode_pci(struct iwl_priv *priv)
+{
+	if (priv->ucode_code.v_addr != NULL) {
+		pci_free_consistent(priv->pci_dev,
+				    priv->ucode_code.len,
+				    priv->ucode_code.v_addr,
+				    priv->ucode_code.p_addr);
+		priv->ucode_code.v_addr = NULL;
+	}
+	if (priv->ucode_data.v_addr != NULL) {
+		pci_free_consistent(priv->pci_dev,
+				    priv->ucode_data.len,
+				    priv->ucode_data.v_addr,
+				    priv->ucode_data.p_addr);
+		priv->ucode_data.v_addr = NULL;
+	}
+	if (priv->ucode_data_backup.v_addr != NULL) {
+		pci_free_consistent(priv->pci_dev,
+				    priv->ucode_data_backup.len,
+				    priv->ucode_data_backup.v_addr,
+				    priv->ucode_data_backup.p_addr);
+		priv->ucode_data_backup.v_addr = NULL;
+	}
+	if (priv->ucode_init.v_addr != NULL) {
+		pci_free_consistent(priv->pci_dev,
+				    priv->ucode_init.len,
+				    priv->ucode_init.v_addr,
+				    priv->ucode_init.p_addr);
+		priv->ucode_init.v_addr = NULL;
+	}
+	if (priv->ucode_init_data.v_addr != NULL) {
+		pci_free_consistent(priv->pci_dev,
+				    priv->ucode_init_data.len,
+				    priv->ucode_init_data.v_addr,
+				    priv->ucode_init_data.p_addr);
+		priv->ucode_init_data.v_addr = NULL;
+	}
+	if (priv->ucode_boot.v_addr != NULL) {
+		pci_free_consistent(priv->pci_dev,
+				    priv->ucode_boot.len,
+				    priv->ucode_boot.v_addr,
+				    priv->ucode_boot.p_addr);
+		priv->ucode_boot.v_addr = NULL;
+	}
+}
+
+/**
+ * iwl_verify_inst_full - verify runtime uCode image in card vs. host,
+ *     looking at all data.
+ */
+static int iwl_verify_inst_full(struct iwl_priv *priv, __le32 * image, u32 len)
+{
+	u32 val;
+	u32 save_len = len;
+	int rc = 0;
+	u32 errcnt;
+
+	IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
+
+	rc = iwl_grab_restricted_access(priv);
+	if (rc)
+		return rc;
+
+	iwl_write_restricted(priv, HBUS_TARG_MEM_RADDR, RTC_INST_LOWER_BOUND);
+
+	errcnt = 0;
+	for (; len > 0; len -= sizeof(u32), image++) {
+		/* read data comes through single port, auto-incr addr */
+		/* NOTE: Use the debugless read so we don't flood kernel log
+		 * if IWL_DL_IO is set */
+		val = _iwl_read_restricted(priv, HBUS_TARG_MEM_RDAT);
+		if (val != le32_to_cpu(*image)) {
+			IWL_ERROR("uCode INST section is invalid at "
+				  "offset 0x%x, is 0x%x, s/b 0x%x\n",
+				  save_len - len, val, le32_to_cpu(*image));
+			rc = -EIO;
+			errcnt++;
+			if (errcnt >= 20)
+				break;
+		}
+	}
+
+	iwl_release_restricted_access(priv);
+
+	if (!errcnt)
+		IWL_DEBUG_INFO
+		    ("ucode image in INSTRUCTION memory is good\n");
+
+	return rc;
+}
+
+
+/**
+ * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
+ *   using sample data 100 bytes apart.  If these sample points are good,
+ *   it's a pretty good bet that everything between them is good, too.
+ */
+static int iwl_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len)
+{
+	u32 val;
+	int rc = 0;
+	u32 errcnt = 0;
+	u32 i;
+
+	IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
+
+	rc = iwl_grab_restricted_access(priv);
+	if (rc)
+		return rc;
+
+	for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
+		/* read data comes through single port, auto-incr addr */
+		/* NOTE: Use the debugless read so we don't flood kernel log
+		 * if IWL_DL_IO is set */
+		iwl_write_restricted(priv, HBUS_TARG_MEM_RADDR,
+			i + RTC_INST_LOWER_BOUND);
+		val = _iwl_read_restricted(priv, HBUS_TARG_MEM_RDAT);
+		if (val != le32_to_cpu(*image)) {
+#if 0 /* Enable this if you want to see details */
+			IWL_ERROR("uCode INST section is invalid at "
+				  "offset 0x%x, is 0x%x, s/b 0x%x\n",
+				  i, val, *image);
+#endif
+			rc = -EIO;
+			errcnt++;
+			if (errcnt >= 3)
+				break;
+		}
+	}
+
+	iwl_release_restricted_access(priv);
+
+	return rc;
+}
+
+
+/**
+ * iwl_verify_ucode - determine which instruction image is in SRAM,
+ *    and verify its contents
+ */
+static int iwl_verify_ucode(struct iwl_priv *priv)
+{
+	__le32 *image;
+	u32 len;
+	int rc = 0;
+
+	/* Try bootstrap */
+	image = (__le32 *)priv->ucode_boot.v_addr;
+	len = priv->ucode_boot.len;
+	rc = iwl_verify_inst_sparse(priv, image, len);
+	if (rc == 0) {
+		IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
+		return 0;
+	}
+
+	/* Try initialize */
+	image = (__le32 *)priv->ucode_init.v_addr;
+	len = priv->ucode_init.len;
+	rc = iwl_verify_inst_sparse(priv, image, len);
+	if (rc == 0) {
+		IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
+		return 0;
+	}
+
+	/* Try runtime/protocol */
+	image = (__le32 *)priv->ucode_code.v_addr;
+	len = priv->ucode_code.len;
+	rc = iwl_verify_inst_sparse(priv, image, len);
+	if (rc == 0) {
+		IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
+		return 0;
+	}
+
+	IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
+
+	/* Show first several data entries in instruction SRAM.
+	 * Selection of bootstrap image is arbitrary. */
+	image = (__le32 *)priv->ucode_boot.v_addr;
+	len = priv->ucode_boot.len;
+	rc = iwl_verify_inst_full(priv, image, len);
+
+	return rc;
+}
+
+
+/* check contents of special bootstrap uCode SRAM */
+static int iwl_verify_bsm(struct iwl_priv *priv)
+{
+	__le32 *image = priv->ucode_boot.v_addr;
+	u32 len = priv->ucode_boot.len;
+	u32 reg;
+	u32 val;
+
+	IWL_DEBUG_INFO("Begin verify bsm\n");
+
+	/* verify BSM SRAM contents */
+	val = iwl_read_restricted_reg(priv, BSM_WR_DWCOUNT_REG);
+	for (reg = BSM_SRAM_LOWER_BOUND;
+	     reg < BSM_SRAM_LOWER_BOUND + len;
+	     reg += sizeof(u32), image ++) {
+		val = iwl_read_restricted_reg(priv, reg);
+		if (val != le32_to_cpu(*image)) {
+			IWL_ERROR("BSM uCode verification failed at "
+				  "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
+				  BSM_SRAM_LOWER_BOUND,
+				  reg - BSM_SRAM_LOWER_BOUND, len,
+				  val, le32_to_cpu(*image));
+			return -EIO;
+		}
+	}
+
+	IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n");
+
+	return 0;
+}
+
+/**
+ * iwl_load_bsm - Load bootstrap instructions
+ *
+ * BSM operation:
+ *
+ * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
+ * in special SRAM that does not power down during RFKILL.  When powering back
+ * up after power-saving sleeps (or during initial uCode load), the BSM loads
+ * the bootstrap program into the on-board processor, and starts it.
+ *
+ * The bootstrap program loads (via DMA) instructions and data for a new
+ * program from host DRAM locations indicated by the host driver in the
+ * BSM_DRAM_* registers.  Once the new program is loaded, it starts
+ * automatically.
+ *
+ * When initializing the NIC, the host driver points the BSM to the
+ * "initialize" uCode image.  This uCode sets up some internal data, then
+ * notifies host via "initialize alive" that it is complete.
+ *
+ * The host then replaces the BSM_DRAM_* pointer values to point to the
+ * normal runtime uCode instructions and a backup uCode data cache buffer
+ * (filled initially with starting data values for the on-board processor),
+ * then triggers the "initialize" uCode to load and launch the runtime uCode,
+ * which begins normal operation.
+ *
+ * When doing a power-save shutdown, runtime uCode saves data SRAM into
+ * the backup data cache in DRAM before SRAM is powered down.
+ *
+ * When powering back up, the BSM loads the bootstrap program.  This reloads
+ * the runtime uCode instructions and the backup data cache into SRAM,
+ * and re-launches the runtime uCode from where it left off.
+ */
+static int iwl_load_bsm(struct iwl_priv *priv)
+{
+	__le32 *image = priv->ucode_boot.v_addr;
+	u32 len = priv->ucode_boot.len;
+	dma_addr_t pinst;
+	dma_addr_t pdata;
+	u32 inst_len;
+	u32 data_len;
+	int rc;
+	int i;
+	u32 done;
+	u32 reg_offset;
+
+	IWL_DEBUG_INFO("Begin load bsm\n");
+
+	/* make sure bootstrap program is no larger than BSM's SRAM size */
+	if (len > IWL_MAX_BSM_SIZE)
+		return -EINVAL;
+
+	/* Tell bootstrap uCode where to find the "Initialize" uCode
+	 *   in host DRAM ... bits 31:0 for 3945, bits 35:4 for 4965.
+	 * NOTE:  iwl_initialize_alive_start() will replace these values,
+	 *        after the "initialize" uCode has run, to point to
+	 *        runtime/protocol instructions and backup data cache. */
+	pinst = priv->ucode_init.p_addr;
+	pdata = priv->ucode_init_data.p_addr;
+	inst_len = priv->ucode_init.len;
+	data_len = priv->ucode_init_data.len;
+
+	rc = iwl_grab_restricted_access(priv);
+	if (rc)
+		return rc;
+
+	iwl_write_restricted_reg(priv, BSM_DRAM_INST_PTR_REG, pinst);
+	iwl_write_restricted_reg(priv, BSM_DRAM_DATA_PTR_REG, pdata);
+	iwl_write_restricted_reg(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len);
+	iwl_write_restricted_reg(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len);
+
+	/* Fill BSM memory with bootstrap instructions */
+	for (reg_offset = BSM_SRAM_LOWER_BOUND;
+	     reg_offset < BSM_SRAM_LOWER_BOUND + len;
+	     reg_offset += sizeof(u32), image++)
+		_iwl_write_restricted_reg(priv, reg_offset,
+					  le32_to_cpu(*image));
+
+	rc = iwl_verify_bsm(priv);
+	if (rc) {
+		iwl_release_restricted_access(priv);
+		return rc;
+	}
+
+	/* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
+	iwl_write_restricted_reg(priv, BSM_WR_MEM_SRC_REG, 0x0);
+	iwl_write_restricted_reg(priv, BSM_WR_MEM_DST_REG,
+				 RTC_INST_LOWER_BOUND);
+	iwl_write_restricted_reg(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32));
+
+	/* Load bootstrap code into instruction SRAM now,
+	 *   to prepare to load "initialize" uCode */
+	iwl_write_restricted_reg(priv, BSM_WR_CTRL_REG,
+		BSM_WR_CTRL_REG_BIT_START);
+
+	/* Wait for load of bootstrap uCode to finish */
+	for (i = 0; i < 100; i++) {
+		done = iwl_read_restricted_reg(priv, BSM_WR_CTRL_REG);
+		if (!(done & BSM_WR_CTRL_REG_BIT_START))
+			break;
+		udelay(10);
+	}
+	if (i < 100)
+		IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i);
+	else {
+		IWL_ERROR("BSM write did not complete!\n");
+		return -EIO;
+	}
+
+	/* Enable future boot loads whenever power management unit triggers it
+	 *   (e.g. when powering back up after power-save shutdown) */
+	iwl_write_restricted_reg(priv, BSM_WR_CTRL_REG,
+		BSM_WR_CTRL_REG_BIT_START_EN);
+
+	iwl_release_restricted_access(priv);
+
+	return 0;
+}
+
+static void iwl_nic_start(struct iwl_priv *priv)
+{
+	/* Remove all resets to allow NIC to operate */
+	iwl_write32(priv, CSR_RESET, 0);
+}
+
+/**
+ * iwl_read_ucode - Read uCode images from disk file.
+ *
+ * Copy into buffers for card to fetch via bus-mastering
+ */
+static int iwl_read_ucode(struct iwl_priv *priv)
+{
+	struct iwl_ucode *ucode;
+	int rc = 0;
+	const struct firmware *ucode_raw;
+	/* firmware file name contains uCode/driver compatibility version */
+	const char *name = "iwlwifi-3945" IWL3945_UCODE_API ".ucode";
+	u8 *src;
+	size_t len;
+	u32 ver, inst_size, data_size, init_size, init_data_size, boot_size;
+
+	/* Ask kernel firmware_class module to get the boot firmware off disk.
+	 * request_firmware() is synchronous, file is in memory on return. */
+	rc = request_firmware(&ucode_raw, name, &priv->pci_dev->dev);
+	if (rc < 0) {
+		IWL_ERROR("%s firmware file req failed: Reason %d\n", name, rc);
+		goto error;
+	}
+
+	IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
+		       name, ucode_raw->size);
+
+	/* Make sure that we got at least our header! */
+	if (ucode_raw->size < sizeof(*ucode)) {
+		IWL_ERROR("File size way too small!\n");
+		rc = -EINVAL;
+		goto err_release;
+	}
+
+	/* Data from ucode file:  header followed by uCode images */
+	ucode = (void *)ucode_raw->data;
+
+	ver = le32_to_cpu(ucode->ver);
+	inst_size = le32_to_cpu(ucode->inst_size);
+	data_size = le32_to_cpu(ucode->data_size);
+	init_size = le32_to_cpu(ucode->init_size);
+	init_data_size = le32_to_cpu(ucode->init_data_size);
+	boot_size = le32_to_cpu(ucode->boot_size);
+
+	IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver);
+	IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
+		       inst_size);
+	IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
+		       data_size);
+	IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
+		       init_size);
+	IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
+		       init_data_size);
+	IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
+		       boot_size);
+
+	/* Verify size of file vs. image size info in file's header */
+	if (ucode_raw->size < sizeof(*ucode) +
+		inst_size + data_size + init_size +
+		init_data_size + boot_size) {
+
+		IWL_DEBUG_INFO("uCode file size %d too small\n",
+			       (int)ucode_raw->size);
+		rc = -EINVAL;
+		goto err_release;
+	}
+
+	/* Verify that uCode images will fit in card's SRAM */
+	if (inst_size > IWL_MAX_INST_SIZE) {
+		IWL_DEBUG_INFO("uCode instr len %d too large to fit in card\n",
+			       (int)inst_size);
+		rc = -EINVAL;
+		goto err_release;
+	}
+
+	if (data_size > IWL_MAX_DATA_SIZE) {
+		IWL_DEBUG_INFO("uCode data len %d too large to fit in card\n",
+			       (int)data_size);
+		rc = -EINVAL;
+		goto err_release;
+	}
+	if (init_size > IWL_MAX_INST_SIZE) {
+		IWL_DEBUG_INFO
+		    ("uCode init instr len %d too large to fit in card\n",
+		     (int)init_size);
+		rc = -EINVAL;
+		goto err_release;
+	}
+	if (init_data_size > IWL_MAX_DATA_SIZE) {
+		IWL_DEBUG_INFO
+		    ("uCode init data len %d too large to fit in card\n",
+		     (int)init_data_size);
+		rc = -EINVAL;
+		goto err_release;
+	}
+	if (boot_size > IWL_MAX_BSM_SIZE) {
+		IWL_DEBUG_INFO
+		    ("uCode boot instr len %d too large to fit in bsm\n",
+		     (int)boot_size);
+		rc = -EINVAL;
+		goto err_release;
+	}
+
+	/* Allocate ucode buffers for card's bus-master loading ... */
+
+	/* Runtime instructions and 2 copies of data:
+	 * 1) unmodified from disk
+	 * 2) backup cache for save/restore during power-downs */
+	priv->ucode_code.len = inst_size;
+	priv->ucode_code.v_addr =
+	    pci_alloc_consistent(priv->pci_dev,
+				 priv->ucode_code.len,
+				 &(priv->ucode_code.p_addr));
+
+	priv->ucode_data.len = data_size;
+	priv->ucode_data.v_addr =
+	    pci_alloc_consistent(priv->pci_dev,
+				 priv->ucode_data.len,
+				 &(priv->ucode_data.p_addr));
+
+	priv->ucode_data_backup.len = data_size;
+	priv->ucode_data_backup.v_addr =
+	    pci_alloc_consistent(priv->pci_dev,
+				 priv->ucode_data_backup.len,
+				 &(priv->ucode_data_backup.p_addr));
+
+
+	/* Initialization instructions and data */
+	priv->ucode_init.len = init_size;
+	priv->ucode_init.v_addr =
+	    pci_alloc_consistent(priv->pci_dev,
+				 priv->ucode_init.len,
+				 &(priv->ucode_init.p_addr));
+
+	priv->ucode_init_data.len = init_data_size;
+	priv->ucode_init_data.v_addr =
+	    pci_alloc_consistent(priv->pci_dev,
+				 priv->ucode_init_data.len,
+				 &(priv->ucode_init_data.p_addr));
+
+	/* Bootstrap (instructions only, no data) */
+	priv->ucode_boot.len = boot_size;
+	priv->ucode_boot.v_addr =
+	    pci_alloc_consistent(priv->pci_dev,
+				 priv->ucode_boot.len,
+				 &(priv->ucode_boot.p_addr));
+
+	if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr ||
+	    !priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr ||
+	    !priv->ucode_boot.v_addr || !priv->ucode_data_backup.v_addr)
+		goto err_pci_alloc;
+
+	/* Copy images into buffers for card's bus-master reads ... */
+
+	/* Runtime instructions (first block of data in file) */
+	src = &ucode->data[0];
+	len = priv->ucode_code.len;
+	IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %d\n",
+		       (int)len);
+	memcpy(priv->ucode_code.v_addr, src, len);
+	IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
+		priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
+
+	/* Runtime data (2nd block)
+	 * NOTE:  Copy into backup buffer will be done in iwl_up()  */
+	src = &ucode->data[inst_size];
+	len = priv->ucode_data.len;
+	IWL_DEBUG_INFO("Copying (but not loading) uCode data len %d\n",
+		       (int)len);
+	memcpy(priv->ucode_data.v_addr, src, len);
+	memcpy(priv->ucode_data_backup.v_addr, src, len);
+
+	/* Initialization instructions (3rd block) */
+	if (init_size) {
+		src = &ucode->data[inst_size + data_size];
+		len = priv->ucode_init.len;
+		IWL_DEBUG_INFO("Copying (but not loading) init instr len %d\n",
+			       (int)len);
+		memcpy(priv->ucode_init.v_addr, src, len);
+	}
+
+	/* Initialization data (4th block) */
+	if (init_data_size) {
+		src = &ucode->data[inst_size + data_size + init_size];
+		len = priv->ucode_init_data.len;
+		IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n",
+			       (int)len);
+		memcpy(priv->ucode_init_data.v_addr, src, len);
+	}
+
+	/* Bootstrap instructions (5th block) */
+	src = &ucode->data[inst_size + data_size + init_size + init_data_size];
+	len = priv->ucode_boot.len;
+	IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n",
+		       (int)len);
+	memcpy(priv->ucode_boot.v_addr, src, len);
+
+	/* We have our copies now, allow OS release its copies */
+	release_firmware(ucode_raw);
+	return 0;
+
+ err_pci_alloc:
+	IWL_ERROR("failed to allocate pci memory\n");
+	rc = -ENOMEM;
+	iwl_dealloc_ucode_pci(priv);
+
+ err_release:
+	release_firmware(ucode_raw);
+
+ error:
+	return rc;
+}
+
+
+/**
+ * iwl_set_ucode_ptrs - Set uCode address location
+ *
+ * Tell initialization uCode where to find runtime uCode.
+ *
+ * BSM registers initially contain pointers to initialization uCode.
+ * We need to replace them to load runtime uCode inst and data,
+ * and to save runtime data when powering down.
+ */
+static int iwl_set_ucode_ptrs(struct iwl_priv *priv)
+{
+	dma_addr_t pinst;
+	dma_addr_t pdata;
+	int rc = 0;
+	unsigned long flags;
+
+	/* bits 31:0 for 3945 */
+	pinst = priv->ucode_code.p_addr;
+	pdata = priv->ucode_data_backup.p_addr;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	rc = iwl_grab_restricted_access(priv);
+	if (rc) {
+		spin_unlock_irqrestore(&priv->lock, flags);
+		return rc;
+	}
+
+	/* Tell bootstrap uCode where to find image to load */
+	iwl_write_restricted_reg(priv, BSM_DRAM_INST_PTR_REG, pinst);
+	iwl_write_restricted_reg(priv, BSM_DRAM_DATA_PTR_REG, pdata);
+	iwl_write_restricted_reg(priv, BSM_DRAM_DATA_BYTECOUNT_REG,
+				 priv->ucode_data.len);
+
+	/* Inst bytecount must be last to set up, bit 31 signals uCode
+	 *   that all new ptr/size info is in place */
+	iwl_write_restricted_reg(priv, BSM_DRAM_INST_BYTECOUNT_REG,
+				 priv->ucode_code.len | BSM_DRAM_INST_LOAD);
+
+	iwl_release_restricted_access(priv);
+
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
+
+	return rc;
+}
+
+/**
+ * iwl_init_alive_start - Called after REPLY_ALIVE notification receieved
+ *
+ * Called after REPLY_ALIVE notification received from "initialize" uCode.
+ *
+ * The 4965 "initialize" ALIVE reply contains calibration data for:
+ *   Voltage, temperature, and MIMO tx gain correction, now stored in priv
+ *   (3945 does not contain this data).
+ *
+ * Tell "initialize" uCode to go ahead and load the runtime uCode.
+*/
+static void iwl_init_alive_start(struct iwl_priv *priv)
+{
+	/* Check alive response for "valid" sign from uCode */
+	if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
+		/* We had an error bringing up the hardware, so take it
+		 * all the way back down so we can try again */
+		IWL_DEBUG_INFO("Initialize Alive failed.\n");
+		goto restart;
+	}
+
+	/* Bootstrap uCode has loaded initialize uCode ... verify inst image.
+	 * This is a paranoid check, because we would not have gotten the
+	 * "initialize" alive if code weren't properly loaded.  */
+	if (iwl_verify_ucode(priv)) {
+		/* Runtime instruction load was bad;
+		 * take it all the way back down so we can try again */
+		IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
+		goto restart;
+	}
+
+	/* Send pointers to protocol/runtime uCode image ... init code will
+	 * load and launch runtime uCode, which will send us another "Alive"
+	 * notification. */
+	IWL_DEBUG_INFO("Initialization Alive received.\n");
+	if (iwl_set_ucode_ptrs(priv)) {
+		/* Runtime instruction load won't happen;
+		 * take it all the way back down so we can try again */
+		IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
+		goto restart;
+	}
+	return;
+
+ restart:
+	queue_work(priv->workqueue, &priv->restart);
+}
+
+
+/**
+ * iwl_alive_start - called after REPLY_ALIVE notification received
+ *                   from protocol/runtime uCode (initialization uCode's
+ *                   Alive gets handled by iwl_init_alive_start()).
+ */
+static void iwl_alive_start(struct iwl_priv *priv)
+{
+	int rc = 0;
+	int thermal_spin = 0;
+	u32 rfkill;
+
+	IWL_DEBUG_INFO("Runtime Alive received.\n");
+
+	if (priv->card_alive.is_valid != UCODE_VALID_OK) {
+		/* We had an error bringing up the hardware, so take it
+		 * all the way back down so we can try again */
+		IWL_DEBUG_INFO("Alive failed.\n");
+		goto restart;
+	}
+
+	/* Initialize uCode has loaded Runtime uCode ... verify inst image.
+	 * This is a paranoid check, because we would not have gotten the
+	 * "runtime" alive if code weren't properly loaded.  */
+	if (iwl_verify_ucode(priv)) {
+		/* Runtime instruction load was bad;
+		 * take it all the way back down so we can try again */
+		IWL_DEBUG_INFO("Bad runtime uCode load.\n");
+		goto restart;
+	}
+
+	iwl_clear_stations_table(priv);
+
+	rc = iwl_grab_restricted_access(priv);
+	if (rc) {
+		IWL_WARNING("Can not read rfkill status from adapter\n");
+		return;
+	}
+
+	rfkill = iwl_read_restricted_reg(priv, APMG_RFKILL_REG);
+	IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill);
+	iwl_release_restricted_access(priv);
+
+	if (rfkill & 0x1) {
+		clear_bit(STATUS_RF_KILL_HW, &priv->status);
+		/* if rfkill is not on, then wait for thermal
+		 * sensor in adapter to kick in */
+		while (iwl_hw_get_temperature(priv) == 0) {
+			thermal_spin++;
+			udelay(10);
+		}
+
+		if (thermal_spin)
+			IWL_DEBUG_INFO("Thermal calibration took %dus\n",
+				       thermal_spin * 10);
+	} else
+		set_bit(STATUS_RF_KILL_HW, &priv->status);
+
+	/* After the ALIVE response, we can process host commands */
+	set_bit(STATUS_ALIVE, &priv->status);
+
+	/* Clear out the uCode error bit if it is set */
+	clear_bit(STATUS_FW_ERROR, &priv->status);
+
+	rc = iwl_init_channel_map(priv);
+	if (rc) {
+		IWL_ERROR("initializing regulatory failed: %d\n", rc);
+		return;
+	}
+
+	iwl_init_geos(priv);
+
+	if (iwl_is_rfkill(priv))
+		return;
+
+	if (!priv->mac80211_registered) {
+		/* Unlock so any user space entry points can call back into
+		 * the driver without a deadlock... */
+		mutex_unlock(&priv->mutex);
+		iwl_rate_control_register(priv->hw);
+		rc = ieee80211_register_hw(priv->hw);
+		priv->hw->conf.beacon_int = 100;
+		mutex_lock(&priv->mutex);
+
+		if (rc) {
+			IWL_ERROR("Failed to register network "
+				  "device (error %d)\n", rc);
+			return;
+		}
+
+		priv->mac80211_registered = 1;
+
+		iwl_reset_channel_flag(priv);
+	} else
+		ieee80211_start_queues(priv->hw);
+
+	priv->active_rate = priv->rates_mask;
+	priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
+
+	iwl_send_power_mode(priv, IWL_POWER_LEVEL(priv->power_mode));
+
+	if (iwl_is_associated(priv)) {
+		struct iwl_rxon_cmd *active_rxon =
+				(struct iwl_rxon_cmd *)(&priv->active_rxon);
+
+		memcpy(&priv->staging_rxon, &priv->active_rxon,
+		       sizeof(priv->staging_rxon));
+		active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+	} else {
+		/* Initialize our rx_config data */
+		iwl_connection_init_rx_config(priv);
+		memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
+	}
+
+	/* Configure BT coexistence */
+	iwl_send_bt_config(priv);
+
+	/* Configure the adapter for unassociated operation */
+	iwl_commit_rxon(priv);
+
+	/* At this point, the NIC is initialized and operational */
+	priv->notif_missed_beacons = 0;
+	set_bit(STATUS_READY, &priv->status);
+
+	iwl3945_reg_txpower_periodic(priv);
+
+	IWL_DEBUG_INFO("ALIVE processing complete.\n");
+
+	if (priv->error_recovering)
+		iwl_error_recovery(priv);
+
+	return;
+
+ restart:
+	queue_work(priv->workqueue, &priv->restart);
+}
+
+static void iwl_cancel_deferred_work(struct iwl_priv *priv);
+
+static void __iwl_down(struct iwl_priv *priv)
+{
+	unsigned long flags;
+	int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
+	struct ieee80211_conf *conf = NULL;
+
+	IWL_DEBUG_INFO(DRV_NAME " is going down\n");
+
+	conf = ieee80211_get_hw_conf(priv->hw);
+
+	if (!exit_pending)
+		set_bit(STATUS_EXIT_PENDING, &priv->status);
+
+	iwl_clear_stations_table(priv);
+
+	/* Unblock any waiting calls */
+	wake_up_interruptible_all(&priv->wait_command_queue);
+
+	iwl_cancel_deferred_work(priv);
+
+	/* Wipe out the EXIT_PENDING status bit if we are not actually
+	 * exiting the module */
+	if (!exit_pending)
+		clear_bit(STATUS_EXIT_PENDING, &priv->status);
+
+	/* stop and reset the on-board processor */
+	iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
+
+	/* tell the device to stop sending interrupts */
+	iwl_disable_interrupts(priv);
+
+	if (priv->mac80211_registered)
+		ieee80211_stop_queues(priv->hw);
+
+	/* If we have not previously called iwl_init() then
+	 * clear all bits but the RF Kill and SUSPEND bits and return */
+	if (!iwl_is_init(priv)) {
+		priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
+					STATUS_RF_KILL_HW |
+			       test_bit(STATUS_RF_KILL_SW, &priv->status) <<
+					STATUS_RF_KILL_SW |
+			       test_bit(STATUS_IN_SUSPEND, &priv->status) <<
+					STATUS_IN_SUSPEND;
+		goto exit;
+	}
+
+	/* ...otherwise clear out all the status bits but the RF Kill and
+	 * SUSPEND bits and continue taking the NIC down. */
+	priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
+				STATUS_RF_KILL_HW |
+			test_bit(STATUS_RF_KILL_SW, &priv->status) <<
+				STATUS_RF_KILL_SW |
+			test_bit(STATUS_IN_SUSPEND, &priv->status) <<
+				STATUS_IN_SUSPEND |
+			test_bit(STATUS_FW_ERROR, &priv->status) <<
+				STATUS_FW_ERROR;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	iwl_hw_txq_ctx_stop(priv);
+	iwl_hw_rxq_stop(priv);
+
+	spin_lock_irqsave(&priv->lock, flags);
+	if (!iwl_grab_restricted_access(priv)) {
+		iwl_write_restricted_reg(priv, APMG_CLK_DIS_REG,
+					 APMG_CLK_VAL_DMA_CLK_RQT);
+		iwl_release_restricted_access(priv);
+	}
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	udelay(5);
+
+	iwl_hw_nic_stop_master(priv);
+	iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
+	iwl_hw_nic_reset(priv);
+
+ exit:
+	memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
+
+	if (priv->ibss_beacon)
+		dev_kfree_skb(priv->ibss_beacon);
+	priv->ibss_beacon = NULL;
+
+	/* clear out any free frames */
+	iwl_clear_free_frames(priv);
+}
+
+static void iwl_down(struct iwl_priv *priv)
+{
+	mutex_lock(&priv->mutex);
+	__iwl_down(priv);
+	mutex_unlock(&priv->mutex);
+}
+
+#define MAX_HW_RESTARTS 5
+
+static int __iwl_up(struct iwl_priv *priv)
+{
+	int rc, i;
+
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
+		IWL_WARNING("Exit pending; will not bring the NIC up\n");
+		return -EIO;
+	}
+
+	if (test_bit(STATUS_RF_KILL_SW, &priv->status)) {
+		IWL_WARNING("Radio disabled by SW RF kill (module "
+			    "parameter)\n");
+		return 0;
+	}
+
+	iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
+
+	rc = iwl_hw_nic_init(priv);
+	if (rc) {
+		IWL_ERROR("Unable to int nic\n");
+		return rc;
+	}
+
+	/* make sure rfkill handshake bits are cleared */
+	iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+	iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
+		    CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+
+	/* clear (again), then enable host interrupts */
+	iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
+	iwl_enable_interrupts(priv);
+
+	/* really make sure rfkill handshake bits are cleared */
+	iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+	iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+
+	/* Copy original ucode data image from disk into backup cache.
+	 * This will be used to initialize the on-board processor's
+	 * data SRAM for a clean start when the runtime program first loads. */
+	memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
+			priv->ucode_data.len);
+
+	for (i = 0; i < MAX_HW_RESTARTS; i++) {
+
+		iwl_clear_stations_table(priv);
+
+		/* load bootstrap state machine,
+		 * load bootstrap program into processor's memory,
+		 * prepare to load the "initialize" uCode */
+		rc = iwl_load_bsm(priv);
+
+		if (rc) {
+			IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc);
+			continue;
+		}
+
+		/* start card; "initialize" will load runtime ucode */
+		iwl_nic_start(priv);
+
+		/* MAC Address location in EEPROM same for 3945/4965 */
+		get_eeprom_mac(priv, priv->mac_addr);
+		IWL_DEBUG_INFO("MAC address: " MAC_FMT "\n",
+			       MAC_ARG(priv->mac_addr));
+
+		SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
+
+		IWL_DEBUG_INFO(DRV_NAME " is coming up\n");
+
+		return 0;
+	}
+
+	set_bit(STATUS_EXIT_PENDING, &priv->status);
+	__iwl_down(priv);
+
+	/* tried to restart and config the device for as long as our
+	 * patience could withstand */
+	IWL_ERROR("Unable to initialize device after %d attempts.\n", i);
+	return -EIO;
+}
+
+
+/*****************************************************************************
+ *
+ * Workqueue callbacks
+ *
+ *****************************************************************************/
+
+static void iwl_bg_init_alive_start(struct work_struct *data)
+{
+	struct iwl_priv *priv =
+	    container_of(data, struct iwl_priv, init_alive_start.work);
+
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+		return;
+
+	mutex_lock(&priv->mutex);
+	iwl_init_alive_start(priv);
+	mutex_unlock(&priv->mutex);
+}
+
+static void iwl_bg_alive_start(struct work_struct *data)
+{
+	struct iwl_priv *priv =
+	    container_of(data, struct iwl_priv, alive_start.work);
+
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+		return;
+
+	mutex_lock(&priv->mutex);
+	iwl_alive_start(priv);
+	mutex_unlock(&priv->mutex);
+}
+
+static void iwl_bg_rf_kill(struct work_struct *work)
+{
+	struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill);
+
+	wake_up_interruptible(&priv->wait_command_queue);
+
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+		return;
+
+	mutex_lock(&priv->mutex);
+
+	if (!iwl_is_rfkill(priv)) {
+		IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL,
+			  "HW and/or SW RF Kill no longer active, restarting "
+			  "device\n");
+		if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
+			queue_work(priv->workqueue, &priv->restart);
+	} else {
+
+		if (!test_bit(STATUS_RF_KILL_HW, &priv->status))
+			IWL_DEBUG_RF_KILL("Can not turn radio back on - "
+					  "disabled by SW switch\n");
+		else
+			IWL_WARNING("Radio Frequency Kill Switch is On:\n"
+				    "Kill switch must be turned off for "
+				    "wireless networking to work.\n");
+	}
+	mutex_unlock(&priv->mutex);
+}
+
+#define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
+
+static void iwl_bg_scan_check(struct work_struct *data)
+{
+	struct iwl_priv *priv =
+	    container_of(data, struct iwl_priv, scan_check.work);
+
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+		return;
+
+	mutex_lock(&priv->mutex);
+	if (test_bit(STATUS_SCANNING, &priv->status) ||
+	    test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
+		IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN,
+			  "Scan completion watchdog resetting adapter (%dms)\n",
+			  jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG));
+		if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
+			queue_work(priv->workqueue, &priv->restart);
+	}
+	mutex_unlock(&priv->mutex);
+}
+
+static void iwl_bg_request_scan(struct work_struct *data)
+{
+	struct iwl_priv *priv =
+	    container_of(data, struct iwl_priv, request_scan);
+	struct iwl_host_cmd cmd = {
+		.id = REPLY_SCAN_CMD,
+		.len = sizeof(struct iwl_scan_cmd),
+		.meta.flags = CMD_SIZE_HUGE,
+	};
+	int rc = 0;
+	struct iwl_scan_cmd *scan;
+	struct ieee80211_conf *conf = NULL;
+	u8 direct_mask;
+	int phymode;
+
+	conf = ieee80211_get_hw_conf(priv->hw);
+
+	mutex_lock(&priv->mutex);
+
+	if (!iwl_is_ready(priv)) {
+		IWL_WARNING("request scan called when driver not ready.\n");
+		goto done;
+	}
+
+	/* Make sure the scan wasn't cancelled before this queued work
+	 * was given the chance to run... */
+	if (!test_bit(STATUS_SCANNING, &priv->status))
+		goto done;
+
+	/* This should never be called or scheduled if there is currently
+	 * a scan active in the hardware. */
+	if (test_bit(STATUS_SCAN_HW, &priv->status)) {
+		IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
+			       "Ignoring second request.\n");
+		rc = -EIO;
+		goto done;
+	}
+
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
+		IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
+		goto done;
+	}
+
+	if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
+		IWL_DEBUG_HC("Scan request while abort pending.  Queuing.\n");
+		goto done;
+	}
+
+	if (iwl_is_rfkill(priv)) {
+		IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
+		goto done;
+	}
+
+	if (!test_bit(STATUS_READY, &priv->status)) {
+		IWL_DEBUG_HC("Scan request while uninitialized.  Queuing.\n");
+		goto done;
+	}
+
+	if (!priv->scan_bands) {
+		IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
+		goto done;
+	}
+
+	if (!priv->scan) {
+		priv->scan = kmalloc(sizeof(struct iwl_scan_cmd) +
+				     IWL_MAX_SCAN_SIZE, GFP_KERNEL);
+		if (!priv->scan) {
+			rc = -ENOMEM;
+			goto done;
+		}
+	}
+	scan = priv->scan;
+	memset(scan, 0, sizeof(struct iwl_scan_cmd) + IWL_MAX_SCAN_SIZE);
+
+	scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
+	scan->quiet_time = IWL_ACTIVE_QUIET_TIME;
+
+	if (iwl_is_associated(priv)) {
+		u16 interval = 0;
+		u32 extra;
+		u32 suspend_time = 100;
+		u32 scan_suspend_time = 100;
+		unsigned long flags;
+
+		IWL_DEBUG_INFO("Scanning while associated...\n");
+
+		spin_lock_irqsave(&priv->lock, flags);
+		interval = priv->beacon_int;
+		spin_unlock_irqrestore(&priv->lock, flags);
+
+		scan->suspend_time = 0;
+		scan->max_out_time = cpu_to_le32(600 * 1024);
+		if (!interval)
+			interval = suspend_time;
+		/*
+		 * suspend time format:
+		 *  0-19: beacon interval in usec (time before exec.)
+		 * 20-23: 0
+		 * 24-31: number of beacons (suspend between channels)
+		 */
+
+		extra = (suspend_time / interval) << 24;
+		scan_suspend_time = 0xFF0FFFFF &
+		    (extra | ((suspend_time % interval) * 1024));
+
+		scan->suspend_time = cpu_to_le32(scan_suspend_time);
+		IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
+			       scan_suspend_time, interval);
+	}
+
+	/* We should add the ability for user to lock to PASSIVE ONLY */
+	if (priv->one_direct_scan) {
+		IWL_DEBUG_SCAN
+		    ("Kicking off one direct scan for '%s'\n",
+		     iwl_escape_essid(priv->direct_ssid,
+				      priv->direct_ssid_len));
+		scan->direct_scan[0].id = WLAN_EID_SSID;
+		scan->direct_scan[0].len = priv->direct_ssid_len;
+		memcpy(scan->direct_scan[0].ssid,
+		       priv->direct_ssid, priv->direct_ssid_len);
+		direct_mask = 1;
+	} else if (!iwl_is_associated(priv)) {
+		scan->direct_scan[0].id = WLAN_EID_SSID;
+		scan->direct_scan[0].len = priv->essid_len;
+		memcpy(scan->direct_scan[0].ssid, priv->essid, priv->essid_len);
+		direct_mask = 1;
+	} else
+		direct_mask = 0;
+
+	/* We don't build a direct scan probe request; the uCode will do
+	 * that based on the direct_mask added to each channel entry */
+	scan->tx_cmd.len = cpu_to_le16(
+		iwl_fill_probe_req(priv, (struct ieee80211_mgmt *)scan->data,
+			IWL_MAX_SCAN_SIZE - sizeof(scan), 0));
+	scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
+	scan->tx_cmd.sta_id = priv->hw_setting.bcast_sta_id;
+	scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
+
+	/* flags + rate selection */
+
+	switch (priv->scan_bands) {
+	case 2:
+		scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
+		scan->tx_cmd.rate = IWL_RATE_1M_PLCP;
+		scan->good_CRC_th = 0;
+		phymode = MODE_IEEE80211G;
+		break;
+
+	case 1:
+		scan->tx_cmd.rate = IWL_RATE_6M_PLCP;
+		scan->good_CRC_th = IWL_GOOD_CRC_TH;
+		phymode = MODE_IEEE80211A;
+		break;
+
+	default:
+		IWL_WARNING("Invalid scan band count\n");
+		goto done;
+	}
+
+	/* select Rx antennas */
+	scan->flags |= iwl3945_get_antenna_flags(priv);
+
+	if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR)
+		scan->filter_flags = RXON_FILTER_PROMISC_MSK;
+
+	if (direct_mask)
+		IWL_DEBUG_SCAN
+		    ("Initiating direct scan for %s.\n",
+		     iwl_escape_essid(priv->essid, priv->essid_len));
+	else
+		IWL_DEBUG_SCAN("Initiating indirect scan.\n");
+
+	scan->channel_count =
+		iwl_get_channels_for_scan(
+			priv, phymode, 1, /* active */
+			direct_mask,
+			(void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
+
+	cmd.len += le16_to_cpu(scan->tx_cmd.len) +
+	    scan->channel_count * sizeof(struct iwl_scan_channel);
+	cmd.data = scan;
+	scan->len = cpu_to_le16(cmd.len);
+
+	set_bit(STATUS_SCAN_HW, &priv->status);
+	rc = iwl_send_cmd_sync(priv, &cmd);
+	if (rc)
+		goto done;
+
+	queue_delayed_work(priv->workqueue, &priv->scan_check,
+			   IWL_SCAN_CHECK_WATCHDOG);
+
+	mutex_unlock(&priv->mutex);
+	return;
+
+ done:
+	/* inform mac80211 sacn aborted */
+	queue_work(priv->workqueue, &priv->scan_completed);
+	mutex_unlock(&priv->mutex);
+}
+
+static void iwl_bg_up(struct work_struct *data)
+{
+	struct iwl_priv *priv = container_of(data, struct iwl_priv, up);
+
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+		return;
+
+	mutex_lock(&priv->mutex);
+	__iwl_up(priv);
+	mutex_unlock(&priv->mutex);
+}
+
+static void iwl_bg_restart(struct work_struct *data)
+{
+	struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
+
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+		return;
+
+	iwl_down(priv);
+	queue_work(priv->workqueue, &priv->up);
+}
+
+static void iwl_bg_rx_replenish(struct work_struct *data)
+{
+	struct iwl_priv *priv =
+	    container_of(data, struct iwl_priv, rx_replenish);
+
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+		return;
+
+	mutex_lock(&priv->mutex);
+	iwl_rx_replenish(priv);
+	mutex_unlock(&priv->mutex);
+}
+
+static void iwl_bg_post_associate(struct work_struct *data)
+{
+	struct iwl_priv *priv = container_of(data, struct iwl_priv,
+					     post_associate.work);
+
+	int rc = 0;
+	struct ieee80211_conf *conf = NULL;
+
+	if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
+		IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__);
+		return;
+	}
+
+
+	IWL_DEBUG_ASSOC("Associated as %d to: " MAC_FMT "\n",
+			priv->assoc_id, MAC_ARG(priv->active_rxon.bssid_addr));
+
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+		return;
+
+	mutex_lock(&priv->mutex);
+
+	conf = ieee80211_get_hw_conf(priv->hw);
+
+	priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+	iwl_commit_rxon(priv);
+
+	memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
+	iwl_setup_rxon_timing(priv);
+	rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
+			      sizeof(priv->rxon_timing), &priv->rxon_timing);
+	if (rc)
+		IWL_WARNING("REPLY_RXON_TIMING failed - "
+			    "Attempting to continue.\n");
+
+	priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
+
+	priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
+
+	IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
+			priv->assoc_id, priv->beacon_int);
+
+	if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
+		priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+	else
+		priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+
+	if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
+		if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
+			priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
+		else
+			priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+
+		if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
+			priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+
+	}
+
+	iwl_commit_rxon(priv);
+
+	switch (priv->iw_mode) {
+	case IEEE80211_IF_TYPE_STA:
+		iwl_rate_scale_init(priv->hw, IWL_AP_ID);
+		break;
+
+	case IEEE80211_IF_TYPE_IBSS:
+
+		/* clear out the station table */
+		iwl_clear_stations_table(priv);
+
+		iwl_rxon_add_station(priv, BROADCAST_ADDR, 0);
+		iwl_rxon_add_station(priv, priv->bssid, 0);
+		iwl3945_sync_sta(priv, IWL_STA_ID,
+				 (priv->phymode == MODE_IEEE80211A)?
+				 IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP,
+				 CMD_ASYNC);
+		iwl_rate_scale_init(priv->hw, IWL_STA_ID);
+		iwl_send_beacon_cmd(priv);
+
+		break;
+
+	default:
+		 IWL_ERROR("%s Should not be called in %d mode\n",
+				__FUNCTION__, priv->iw_mode);
+		break;
+	}
+
+	iwl_sequence_reset(priv);
+
+#ifdef CONFIG_IWLWIFI_QOS
+	iwl_activate_qos(priv, 0);
+#endif /* CONFIG_IWLWIFI_QOS */
+	mutex_unlock(&priv->mutex);
+}
+
+static void iwl_bg_abort_scan(struct work_struct *work)
+{
+	struct iwl_priv *priv = container_of(work, struct iwl_priv,
+					     abort_scan);
+
+	if (!iwl_is_ready(priv))
+		return;
+
+	mutex_lock(&priv->mutex);
+
+	set_bit(STATUS_SCAN_ABORTING, &priv->status);
+	iwl_send_scan_abort(priv);
+
+	mutex_unlock(&priv->mutex);
+}
+
+static void iwl_bg_scan_completed(struct work_struct *work)
+{
+	struct iwl_priv *priv =
+	    container_of(work, struct iwl_priv, scan_completed);
+
+	IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN, "SCAN complete scan\n");
+
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+		return;
+
+	ieee80211_scan_completed(priv->hw);
+
+	/* Since setting the TXPOWER may have been deferred while
+	 * performing the scan, fire one off */
+	mutex_lock(&priv->mutex);
+	iwl_hw_reg_send_txpower(priv);
+	mutex_unlock(&priv->mutex);
+}
+
+/*****************************************************************************
+ *
+ * mac80211 entry point functions
+ *
+ *****************************************************************************/
+
+static int iwl_mac_open(struct ieee80211_hw *hw)
+{
+	struct iwl_priv *priv = hw->priv;
+
+	IWL_DEBUG_MAC80211("enter\n");
+
+	/* we should be verifying the device is ready to be opened */
+	mutex_lock(&priv->mutex);
+
+	priv->is_open = 1;
+
+	if (!iwl_is_rfkill(priv))
+		ieee80211_start_queues(priv->hw);
+
+	mutex_unlock(&priv->mutex);
+	IWL_DEBUG_MAC80211("leave\n");
+	return 0;
+}
+
+static int iwl_mac_stop(struct ieee80211_hw *hw)
+{
+	struct iwl_priv *priv = hw->priv;
+
+	IWL_DEBUG_MAC80211("enter\n");
+	priv->is_open = 0;
+	/*netif_stop_queue(dev); */
+	flush_workqueue(priv->workqueue);
+	IWL_DEBUG_MAC80211("leave\n");
+
+	return 0;
+}
+
+static int iwl_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
+		      struct ieee80211_tx_control *ctl)
+{
+	struct iwl_priv *priv = hw->priv;
+
+	IWL_DEBUG_MAC80211("enter\n");
+
+	if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) {
+		IWL_DEBUG_MAC80211("leave - monitor\n");
+		return -1;
+	}
+
+	IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
+		     ctl->tx_rate);
+
+	if (iwl_tx_skb(priv, skb, ctl))
+		dev_kfree_skb_any(skb);
+
+	IWL_DEBUG_MAC80211("leave\n");
+	return 0;
+}
+
+static int iwl_mac_add_interface(struct ieee80211_hw *hw,
+				 struct ieee80211_if_init_conf *conf)
+{
+	struct iwl_priv *priv = hw->priv;
+	unsigned long flags;
+
+	IWL_DEBUG_MAC80211("enter: id %d, type %d\n", conf->if_id, conf->type);
+	if (conf->mac_addr)
+		IWL_DEBUG_MAC80211("enter: MAC " MAC_FMT "\n",
+				   MAC_ARG(conf->mac_addr));
+
+	if (priv->interface_id) {
+		IWL_DEBUG_MAC80211("leave - interface_id != 0\n");
+		return 0;
+	}
+
+	spin_lock_irqsave(&priv->lock, flags);
+	priv->interface_id = conf->if_id;
+
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	mutex_lock(&priv->mutex);
+	iwl_set_mode(priv, conf->type);
+
+	IWL_DEBUG_MAC80211("leave\n");
+	mutex_unlock(&priv->mutex);
+
+	return 0;
+}
+
+/**
+ * iwl_mac_config - mac80211 config callback
+ *
+ * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
+ * be set inappropriately and the driver currently sets the hardware up to
+ * use it whenever needed.
+ */
+static int iwl_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
+{
+	struct iwl_priv *priv = hw->priv;
+	const struct iwl_channel_info *ch_info;
+	unsigned long flags;
+
+	mutex_lock(&priv->mutex);
+	IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel);
+
+	if (!iwl_is_ready(priv)) {
+		IWL_DEBUG_MAC80211("leave - not ready\n");
+		mutex_unlock(&priv->mutex);
+		return -EIO;
+	}
+
+	/* TODO: Figure out how to get ieee80211_local->sta_scanning w/ only
+	 * what is exposed through include/ declrations */
+	if (unlikely(!iwl_param_disable_hw_scan &&
+		     test_bit(STATUS_SCANNING, &priv->status))) {
+		IWL_DEBUG_MAC80211("leave - scanning\n");
+		mutex_unlock(&priv->mutex);
+		return 0;
+	}
+
+	spin_lock_irqsave(&priv->lock, flags);
+
+	ch_info = iwl_get_channel_info(priv, conf->phymode, conf->channel);
+	if (!is_channel_valid(ch_info)) {
+		IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this SKU.\n",
+			       conf->channel, conf->phymode);
+		IWL_DEBUG_MAC80211("leave - invalid channel\n");
+		spin_unlock_irqrestore(&priv->lock, flags);
+		mutex_unlock(&priv->mutex);
+		return -EINVAL;
+	}
+
+	iwl_set_rxon_channel(priv, conf->phymode, conf->channel);
+
+	iwl_set_flags_for_phymode(priv, conf->phymode);
+
+	/* The list of supported rates and rate mask can be different
+	 * for each phymode; since the phymode may have changed, reset
+	 * the rate mask to what mac80211 lists */
+	iwl_set_rate(priv);
+
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+#ifdef IEEE80211_CONF_CHANNEL_SWITCH
+	if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) {
+		iwl_hw_channel_switch(priv, conf->channel);
+		mutex_unlock(&priv->mutex);
+		return 0;
+	}
+#endif
+
+	iwl_radio_kill_sw(priv, !conf->radio_enabled);
+
+	if (!conf->radio_enabled) {
+		IWL_DEBUG_MAC80211("leave - radio disabled\n");
+		mutex_unlock(&priv->mutex);
+		return 0;
+	}
+
+	if (iwl_is_rfkill(priv)) {
+		IWL_DEBUG_MAC80211("leave - RF kill\n");
+		mutex_unlock(&priv->mutex);
+		return -EIO;
+	}
+
+	iwl_set_rate(priv);
+
+	if (memcmp(&priv->active_rxon,
+		   &priv->staging_rxon, sizeof(priv->staging_rxon)))
+		iwl_commit_rxon(priv);
+	else
+		IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
+
+	IWL_DEBUG_MAC80211("leave\n");
+
+	mutex_unlock(&priv->mutex);
+
+	return 0;
+}
+
+static void iwl_config_ap(struct iwl_priv *priv)
+{
+	int rc = 0;
+
+	if (priv->status & STATUS_EXIT_PENDING)
+		return;
+
+	/* The following should be done only at AP bring up */
+	if ((priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) == 0) {
+
+		/* RXON - unassoc (to set timing command) */
+		priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+		iwl_commit_rxon(priv);
+
+		/* RXON Timing */
+		memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
+		iwl_setup_rxon_timing(priv);
+		rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
+				sizeof(priv->rxon_timing), &priv->rxon_timing);
+		if (rc)
+			IWL_WARNING("REPLY_RXON_TIMING failed - "
+					"Attempting to continue.\n");
+
+		/* FIXME: what should be the assoc_id for AP? */
+		priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
+		if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
+			priv->staging_rxon.flags |=
+				RXON_FLG_SHORT_PREAMBLE_MSK;
+		else
+			priv->staging_rxon.flags &=
+				~RXON_FLG_SHORT_PREAMBLE_MSK;
+
+		if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
+			if (priv->assoc_capability &
+				WLAN_CAPABILITY_SHORT_SLOT_TIME)
+				priv->staging_rxon.flags |=
+					RXON_FLG_SHORT_SLOT_MSK;
+			else
+				priv->staging_rxon.flags &=
+					~RXON_FLG_SHORT_SLOT_MSK;
+
+			if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
+				priv->staging_rxon.flags &=
+					~RXON_FLG_SHORT_SLOT_MSK;
+		}
+		/* restore RXON assoc */
+		priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
+		iwl_commit_rxon(priv);
+		iwl_rxon_add_station(priv, BROADCAST_ADDR, 0);
+		iwl_send_beacon_cmd(priv);
+	} else
+		iwl_send_beacon_cmd(priv);
+
+	/* FIXME - we need to add code here to detect a totally new
+	 * configuration, reset the AP, unassoc, rxon timing, assoc,
+	 * clear sta table, add BCAST sta... */
+}
+
+static int iwl_mac_config_interface(struct ieee80211_hw *hw, int if_id,
+				    struct ieee80211_if_conf *conf)
+{
+	struct iwl_priv *priv = hw->priv;
+	unsigned long flags;
+	int rc;
+
+	if (conf == NULL)
+		return -EIO;
+
+	if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
+	    (!conf->beacon || !conf->ssid_len)) {
+		IWL_DEBUG_MAC80211
+		    ("Leaving in AP mode because HostAPD is not ready.\n");
+		return 0;
+	}
+
+	mutex_lock(&priv->mutex);
+
+	IWL_DEBUG_MAC80211("enter: interface id %d\n", if_id);
+	if (conf->bssid)
+		IWL_DEBUG_MAC80211("bssid: " MAC_FMT "\n",
+				   MAC_ARG(conf->bssid));
+
+	if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
+	    !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
+		IWL_DEBUG_MAC80211("leave - scanning\n");
+		mutex_unlock(&priv->mutex);
+		return 0;
+	}
+
+	if (priv->interface_id != if_id) {
+		IWL_DEBUG_MAC80211("leave - interface_id != if_id\n");
+		mutex_unlock(&priv->mutex);
+		return 0;
+	}
+
+	if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
+		if (!conf->bssid) {
+			conf->bssid = priv->mac_addr;
+			memcpy(priv->bssid, priv->mac_addr, ETH_ALEN);
+			IWL_DEBUG_MAC80211("bssid was set to: " MAC_FMT "\n",
+					   MAC_ARG(conf->bssid));
+		}
+		if (priv->ibss_beacon)
+			dev_kfree_skb(priv->ibss_beacon);
+
+		priv->ibss_beacon = conf->beacon;
+	}
+
+	if (conf->bssid && !is_zero_ether_addr(conf->bssid) &&
+	    !is_multicast_ether_addr(conf->bssid)) {
+		/* If there is currently a HW scan going on in the background
+		 * then we need to cancel it else the RXON below will fail. */
+		if (iwl_scan_cancel_timeout(priv, 100)) {
+			IWL_WARNING("Aborted scan still in progress "
+				    "after 100ms\n");
+			IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
+			mutex_unlock(&priv->mutex);
+			return -EAGAIN;
+		}
+		memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN);
+
+		/* TODO: Audit driver for usage of these members and see
+		 * if mac80211 deprecates them (priv->bssid looks like it
+		 * shouldn't be there, but I haven't scanned the IBSS code
+		 * to verify) - jpk */
+		memcpy(priv->bssid, conf->bssid, ETH_ALEN);
+
+		if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
+			iwl_config_ap(priv);
+		else {
+			priv->staging_rxon.filter_flags |=
+						RXON_FILTER_ASSOC_MSK;
+			rc = iwl_commit_rxon(priv);
+			if ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && rc)
+				iwl_rxon_add_station(
+					priv, priv->active_rxon.bssid_addr, 1);
+		}
+
+	} else {
+		priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+		iwl_commit_rxon(priv);
+	}
+
+	spin_lock_irqsave(&priv->lock, flags);
+	if (!conf->ssid_len)
+		memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
+	else
+		memcpy(priv->essid, conf->ssid, conf->ssid_len);
+
+	priv->essid_len = conf->ssid_len;
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	IWL_DEBUG_MAC80211("leave\n");
+	mutex_unlock(&priv->mutex);
+
+	return 0;
+}
+
+static void iwl_mac_remove_interface(struct ieee80211_hw *hw,
+				     struct ieee80211_if_init_conf *conf)
+{
+	struct iwl_priv *priv = hw->priv;
+
+	IWL_DEBUG_MAC80211("enter\n");
+
+	mutex_lock(&priv->mutex);
+	if (priv->interface_id == conf->if_id) {
+		priv->interface_id = 0;
+		memset(priv->bssid, 0, ETH_ALEN);
+		memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
+		priv->essid_len = 0;
+	}
+	mutex_unlock(&priv->mutex);
+
+	IWL_DEBUG_MAC80211("leave\n");
+
+}
+
+#define IWL_DELAY_NEXT_SCAN (HZ*2)
+static int iwl_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
+{
+	int rc = 0;
+	unsigned long flags;
+	struct iwl_priv *priv = hw->priv;
+
+	IWL_DEBUG_MAC80211("enter\n");
+
+	spin_lock_irqsave(&priv->lock, flags);
+
+	if (!iwl_is_ready_rf(priv)) {
+		rc = -EIO;
+		IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
+		goto out_unlock;
+	}
+
+	if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {	/* APs don't scan */
+		rc = -EIO;
+		IWL_ERROR("ERROR: APs don't scan\n");
+		goto out_unlock;
+	}
+
+	/* if we just finished scan ask for delay */
+	if (priv->last_scan_jiffies &&
+	    time_after(priv->last_scan_jiffies + IWL_DELAY_NEXT_SCAN,
+		       jiffies)) {
+		rc = -EAGAIN;
+		goto out_unlock;
+	}
+	if (len) {
+		IWL_DEBUG_SCAN("direct scan for  "
+			       "%s [%d]\n ",
+			       iwl_escape_essid(ssid, len), (int)len);
+
+		priv->one_direct_scan = 1;
+		priv->direct_ssid_len = (u8)
+		    min((u8) len, (u8) IW_ESSID_MAX_SIZE);
+		memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len);
+	}
+
+	rc = iwl_scan_initiate(priv);
+
+	IWL_DEBUG_MAC80211("leave\n");
+
+out_unlock:
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	return rc;
+}
+
+static int iwl_mac_set_key(struct ieee80211_hw *hw, set_key_cmd cmd,
+			   const u8 *local_addr, const u8 *addr,
+			   struct ieee80211_key_conf *key)
+{
+	struct iwl_priv *priv = hw->priv;
+	int rc = 0;
+	u8 sta_id;
+
+	IWL_DEBUG_MAC80211("enter\n");
+
+	if (!iwl_param_hwcrypto) {
+		IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
+		return -EOPNOTSUPP;
+	}
+
+	if (is_zero_ether_addr(addr))
+		/* only support pairwise keys */
+		return -EOPNOTSUPP;
+
+	sta_id = iwl_hw_find_station(priv, addr);
+	if (sta_id == IWL_INVALID_STATION) {
+		IWL_DEBUG_MAC80211("leave - " MAC_FMT " not in station map.\n",
+				   MAC_ARG(addr));
+		return -EINVAL;
+	}
+
+	mutex_lock(&priv->mutex);
+
+	switch (cmd) {
+	case  SET_KEY:
+		rc = iwl_update_sta_key_info(priv, key, sta_id);
+		if (!rc) {
+			iwl_set_rxon_hwcrypto(priv, 1);
+			iwl_commit_rxon(priv);
+			key->hw_key_idx = sta_id;
+			IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n");
+			key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+		}
+		break;
+	case DISABLE_KEY:
+		rc = iwl_clear_sta_key_info(priv, sta_id);
+		if (!rc) {
+			iwl_set_rxon_hwcrypto(priv, 0);
+			iwl_commit_rxon(priv);
+			IWL_DEBUG_MAC80211("disable hwcrypto key\n");
+		}
+		break;
+	default:
+		rc = -EINVAL;
+	}
+
+	IWL_DEBUG_MAC80211("leave\n");
+	mutex_unlock(&priv->mutex);
+
+	return rc;
+}
+
+static int iwl_mac_conf_tx(struct ieee80211_hw *hw, int queue,
+			   const struct ieee80211_tx_queue_params *params)
+{
+	struct iwl_priv *priv = hw->priv;
+#ifdef CONFIG_IWLWIFI_QOS
+	unsigned long flags;
+	int q;
+#endif /* CONFIG_IWL_QOS */
+
+	IWL_DEBUG_MAC80211("enter\n");
+
+	if (!iwl_is_ready_rf(priv)) {
+		IWL_DEBUG_MAC80211("leave - RF not ready\n");
+		return -EIO;
+	}
+
+	if (queue >= AC_NUM) {
+		IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue);
+		return 0;
+	}
+
+#ifdef CONFIG_IWLWIFI_QOS
+	if (!priv->qos_data.qos_enable) {
+		priv->qos_data.qos_active = 0;
+		IWL_DEBUG_MAC80211("leave - qos not enabled\n");
+		return 0;
+	}
+	q = AC_NUM - 1 - queue;
+
+	spin_lock_irqsave(&priv->lock, flags);
+
+	priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min);
+	priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max);
+	priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
+	priv->qos_data.def_qos_parm.ac[q].edca_txop =
+			cpu_to_le16((params->burst_time * 100));
+
+	priv->qos_data.def_qos_parm.ac[q].reserved1 = 0;
+	priv->qos_data.qos_active = 1;
+
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	mutex_lock(&priv->mutex);
+	if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
+		iwl_activate_qos(priv, 1);
+	else if (priv->assoc_id && iwl_is_associated(priv))
+		iwl_activate_qos(priv, 0);
+
+	mutex_unlock(&priv->mutex);
+
+#endif /*CONFIG_IWLWIFI_QOS */
+
+	IWL_DEBUG_MAC80211("leave\n");
+	return 0;
+}
+
+static int iwl_mac_get_tx_stats(struct ieee80211_hw *hw,
+				struct ieee80211_tx_queue_stats *stats)
+{
+	struct iwl_priv *priv = hw->priv;
+	int i, avail;
+	struct iwl_tx_queue *txq;
+	struct iwl_queue *q;
+	unsigned long flags;
+
+	IWL_DEBUG_MAC80211("enter\n");
+
+	if (!iwl_is_ready_rf(priv)) {
+		IWL_DEBUG_MAC80211("leave - RF not ready\n");
+		return -EIO;
+	}
+
+	spin_lock_irqsave(&priv->lock, flags);
+
+	for (i = 0; i < AC_NUM; i++) {
+		txq = &priv->txq[i];
+		q = &txq->q;
+		avail = iwl_queue_space(q);
+
+		stats->data[i].len = q->n_window - avail;
+		stats->data[i].limit = q->n_window - q->high_mark;
+		stats->data[i].count = q->n_window;
+
+	}
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	IWL_DEBUG_MAC80211("leave\n");
+
+	return 0;
+}
+
+static int iwl_mac_get_stats(struct ieee80211_hw *hw,
+			     struct ieee80211_low_level_stats *stats)
+{
+	IWL_DEBUG_MAC80211("enter\n");
+	IWL_DEBUG_MAC80211("leave\n");
+
+	return 0;
+}
+
+static u64 iwl_mac_get_tsf(struct ieee80211_hw *hw)
+{
+	IWL_DEBUG_MAC80211("enter\n");
+	IWL_DEBUG_MAC80211("leave\n");
+
+	return 0;
+}
+
+static void iwl_mac_reset_tsf(struct ieee80211_hw *hw)
+{
+	struct iwl_priv *priv = hw->priv;
+	unsigned long flags;
+
+	mutex_lock(&priv->mutex);
+	IWL_DEBUG_MAC80211("enter\n");
+
+#ifdef CONFIG_IWLWIFI_QOS
+	iwl_reset_qos(priv);
+#endif
+	cancel_delayed_work(&priv->post_associate);
+
+	spin_lock_irqsave(&priv->lock, flags);
+	priv->assoc_id = 0;
+	priv->assoc_capability = 0;
+	priv->call_post_assoc_from_beacon = 0;
+
+	/* new association get rid of ibss beacon skb */
+	if (priv->ibss_beacon)
+		dev_kfree_skb(priv->ibss_beacon);
+
+	priv->ibss_beacon = NULL;
+
+	priv->beacon_int = priv->hw->conf.beacon_int;
+	priv->timestamp1 = 0;
+	priv->timestamp0 = 0;
+	if ((priv->iw_mode == IEEE80211_IF_TYPE_STA))
+		priv->beacon_int = 0;
+
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	/* Per mac80211.h: This is only used in IBSS mode... */
+	if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
+		IWL_DEBUG_MAC80211("leave - not in IBSS\n");
+		mutex_unlock(&priv->mutex);
+		return;
+	}
+
+	if (!iwl_is_ready_rf(priv)) {
+		IWL_DEBUG_MAC80211("leave - not ready\n");
+		mutex_unlock(&priv->mutex);
+		return;
+	}
+
+	priv->only_active_channel = 0;
+
+	iwl_set_rate(priv);
+
+	mutex_unlock(&priv->mutex);
+
+	IWL_DEBUG_MAC80211("leave\n");
+
+}
+
+static int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
+				 struct ieee80211_tx_control *control)
+{
+	struct iwl_priv *priv = hw->priv;
+	unsigned long flags;
+
+	mutex_lock(&priv->mutex);
+	IWL_DEBUG_MAC80211("enter\n");
+
+	if (!iwl_is_ready_rf(priv)) {
+		IWL_DEBUG_MAC80211("leave - RF not ready\n");
+		mutex_unlock(&priv->mutex);
+		return -EIO;
+	}
+
+	if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
+		IWL_DEBUG_MAC80211("leave - not IBSS\n");
+		mutex_unlock(&priv->mutex);
+		return -EIO;
+	}
+
+	spin_lock_irqsave(&priv->lock, flags);
+
+	if (priv->ibss_beacon)
+		dev_kfree_skb(priv->ibss_beacon);
+
+	priv->ibss_beacon = skb;
+
+	priv->assoc_id = 0;
+
+	IWL_DEBUG_MAC80211("leave\n");
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+#ifdef CONFIG_IWLWIFI_QOS
+	iwl_reset_qos(priv);
+#endif
+
+	queue_work(priv->workqueue, &priv->post_associate.work);
+
+	mutex_unlock(&priv->mutex);
+
+	return 0;
+}
+
+/*****************************************************************************
+ *
+ * sysfs attributes
+ *
+ *****************************************************************************/
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+
+/*
+ * The following adds a new attribute to the sysfs representation
+ * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
+ * used for controlling the debug level.
+ *
+ * See the level definitions in iwl for details.
+ */
+
+static ssize_t show_debug_level(struct device_driver *d, char *buf)
+{
+	return sprintf(buf, "0x%08X\n", iwl_debug_level);
+}
+static ssize_t store_debug_level(struct device_driver *d,
+				 const char *buf, size_t count)
+{
+	char *p = (char *)buf;
+	u32 val;
+
+	val = simple_strtoul(p, &p, 0);
+	if (p == buf)
+		printk(KERN_INFO DRV_NAME
+		       ": %s is not in hex or decimal form.\n", buf);
+	else
+		iwl_debug_level = val;
+
+	return strnlen(buf, count);
+}
+
+static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO,
+		   show_debug_level, store_debug_level);
+
+#endif /* CONFIG_IWLWIFI_DEBUG */
+
+static ssize_t show_rf_kill(struct device *d,
+			    struct device_attribute *attr, char *buf)
+{
+	/*
+	 * 0 - RF kill not enabled
+	 * 1 - SW based RF kill active (sysfs)
+	 * 2 - HW based RF kill active
+	 * 3 - Both HW and SW based RF kill active
+	 */
+	struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+	int val = (test_bit(STATUS_RF_KILL_SW, &priv->status) ? 0x1 : 0x0) |
+		  (test_bit(STATUS_RF_KILL_HW, &priv->status) ? 0x2 : 0x0);
+
+	return sprintf(buf, "%i\n", val);
+}
+
+static ssize_t store_rf_kill(struct device *d,
+			     struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+
+	mutex_lock(&priv->mutex);
+	iwl_radio_kill_sw(priv, buf[0] == '1');
+	mutex_unlock(&priv->mutex);
+
+	return count;
+}
+
+static DEVICE_ATTR(rf_kill, S_IWUSR | S_IRUGO, show_rf_kill, store_rf_kill);
+
+static ssize_t show_temperature(struct device *d,
+				struct device_attribute *attr, char *buf)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+
+	if (!iwl_is_alive(priv))
+		return -EAGAIN;
+
+	return sprintf(buf, "%d\n", iwl_hw_get_temperature(priv));
+}
+
+static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
+
+static ssize_t show_rs_window(struct device *d,
+			      struct device_attribute *attr,
+			      char *buf)
+{
+	struct iwl_priv *priv = d->driver_data;
+	return iwl_fill_rs_info(priv->hw, buf, IWL_AP_ID);
+}
+static DEVICE_ATTR(rs_window, S_IRUGO, show_rs_window, NULL);
+
+static ssize_t show_tx_power(struct device *d,
+			     struct device_attribute *attr, char *buf)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+	return sprintf(buf, "%d\n", priv->user_txpower_limit);
+}
+
+static ssize_t store_tx_power(struct device *d,
+			      struct device_attribute *attr,
+			      const char *buf, size_t count)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+	char *p = (char *)buf;
+	u32 val;
+
+	val = simple_strtoul(p, &p, 10);
+	if (p == buf)
+		printk(KERN_INFO DRV_NAME
+		       ": %s is not in decimal form.\n", buf);
+	else
+		iwl_hw_reg_set_txpower(priv, val);
+
+	return count;
+}
+
+static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
+
+static ssize_t show_flags(struct device *d,
+			  struct device_attribute *attr, char *buf)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+
+	return sprintf(buf, "0x%04X\n", priv->active_rxon.flags);
+}
+
+static ssize_t store_flags(struct device *d,
+			   struct device_attribute *attr,
+			   const char *buf, size_t count)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+	u32 flags = simple_strtoul(buf, NULL, 0);
+
+	mutex_lock(&priv->mutex);
+	if (le32_to_cpu(priv->staging_rxon.flags) != flags) {
+		/* Cancel any currently running scans... */
+		if (iwl_scan_cancel_timeout(priv, 100))
+			IWL_WARNING("Could not cancel scan.\n");
+		else {
+			IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
+				       flags);
+			priv->staging_rxon.flags = cpu_to_le32(flags);
+			iwl_commit_rxon(priv);
+		}
+	}
+	mutex_unlock(&priv->mutex);
+
+	return count;
+}
+
+static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags);
+
+static ssize_t show_filter_flags(struct device *d,
+				 struct device_attribute *attr, char *buf)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+
+	return sprintf(buf, "0x%04X\n",
+		le32_to_cpu(priv->active_rxon.filter_flags));
+}
+
+static ssize_t store_filter_flags(struct device *d,
+				  struct device_attribute *attr,
+				  const char *buf, size_t count)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+	u32 filter_flags = simple_strtoul(buf, NULL, 0);
+
+	mutex_lock(&priv->mutex);
+	if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) {
+		/* Cancel any currently running scans... */
+		if (iwl_scan_cancel_timeout(priv, 100))
+			IWL_WARNING("Could not cancel scan.\n");
+		else {
+			IWL_DEBUG_INFO("Committing rxon.filter_flags = "
+				       "0x%04X\n", filter_flags);
+			priv->staging_rxon.filter_flags =
+				cpu_to_le32(filter_flags);
+			iwl_commit_rxon(priv);
+		}
+	}
+	mutex_unlock(&priv->mutex);
+
+	return count;
+}
+
+static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
+		   store_filter_flags);
+
+static ssize_t show_tune(struct device *d,
+			 struct device_attribute *attr, char *buf)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+
+	return sprintf(buf, "0x%04X\n",
+		       (priv->phymode << 8) |
+			le16_to_cpu(priv->active_rxon.channel));
+}
+
+static void iwl_set_flags_for_phymode(struct iwl_priv *priv, u8 phymode);
+
+static ssize_t store_tune(struct device *d,
+			  struct device_attribute *attr,
+			  const char *buf, size_t count)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+	char *p = (char *)buf;
+	u16 tune = simple_strtoul(p, &p, 0);
+	u8 phymode = (tune >> 8) & 0xff;
+	u16 channel = tune & 0xff;
+
+	IWL_DEBUG_INFO("Tune request to:%d channel:%d\n", phymode, channel);
+
+	mutex_lock(&priv->mutex);
+	if ((le16_to_cpu(priv->staging_rxon.channel) != channel) ||
+	    (priv->phymode != phymode)) {
+		const struct iwl_channel_info *ch_info;
+
+		ch_info = iwl_get_channel_info(priv, phymode, channel);
+		if (!ch_info) {
+			IWL_WARNING("Requested invalid phymode/channel "
+				    "combination: %d %d\n", phymode, channel);
+			mutex_unlock(&priv->mutex);
+			return -EINVAL;
+		}
+
+		/* Cancel any currently running scans... */
+		if (iwl_scan_cancel_timeout(priv, 100))
+			IWL_WARNING("Could not cancel scan.\n");
+		else {
+			IWL_DEBUG_INFO("Committing phymode and "
+				       "rxon.channel = %d %d\n",
+				       phymode, channel);
+
+			iwl_set_rxon_channel(priv, phymode, channel);
+			iwl_set_flags_for_phymode(priv, phymode);
+
+			iwl_set_rate(priv);
+			iwl_commit_rxon(priv);
+		}
+	}
+	mutex_unlock(&priv->mutex);
+
+	return count;
+}
+
+static DEVICE_ATTR(tune, S_IWUSR | S_IRUGO, show_tune, store_tune);
+
+#ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT
+
+static ssize_t show_measurement(struct device *d,
+				struct device_attribute *attr, char *buf)
+{
+	struct iwl_priv *priv = dev_get_drvdata(d);
+	struct iwl_spectrum_notification measure_report;
+	u32 size = sizeof(measure_report), len = 0, ofs = 0;
+	u8 *data = (u8 *) & measure_report;
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	if (!(priv->measurement_status & MEASUREMENT_READY)) {
+		spin_unlock_irqrestore(&priv->lock, flags);
+		return 0;
+	}
+	memcpy(&measure_report, &priv->measure_report, size);
+	priv->measurement_status = 0;
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	while (size && (PAGE_SIZE - len)) {
+		hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
+				   PAGE_SIZE - len, 1);
+		len = strlen(buf);
+		if (PAGE_SIZE - len)
+			buf[len++] = '\n';
+
+		ofs += 16;
+		size -= min(size, 16U);
+	}
+
+	return len;
+}
+
+static ssize_t store_measurement(struct device *d,
+				 struct device_attribute *attr,
+				 const char *buf, size_t count)
+{
+	struct iwl_priv *priv = dev_get_drvdata(d);
+	struct ieee80211_measurement_params params = {
+		.channel = le16_to_cpu(priv->active_rxon.channel),
+		.start_time = cpu_to_le64(priv->last_tsf),
+		.duration = cpu_to_le16(1),
+	};
+	u8 type = IWL_MEASURE_BASIC;
+	u8 buffer[32];
+	u8 channel;
+
+	if (count) {
+		char *p = buffer;
+		strncpy(buffer, buf, min(sizeof(buffer), count));
+		channel = simple_strtoul(p, NULL, 0);
+		if (channel)
+			params.channel = channel;
+
+		p = buffer;
+		while (*p && *p != ' ')
+			p++;
+		if (*p)
+			type = simple_strtoul(p + 1, NULL, 0);
+	}
+
+	IWL_DEBUG_INFO("Invoking measurement of type %d on "
+		       "channel %d (for '%s')\n", type, params.channel, buf);
+	iwl_get_measurement(priv, &params, type);
+
+	return count;
+}
+
+static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR,
+		   show_measurement, store_measurement);
+#endif /* CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT */
+
+static ssize_t show_rate(struct device *d,
+			 struct device_attribute *attr, char *buf)
+{
+	struct iwl_priv *priv = dev_get_drvdata(d);
+	unsigned long flags;
+	int i;
+
+	spin_lock_irqsave(&priv->sta_lock, flags);
+	if (priv->iw_mode == IEEE80211_IF_TYPE_STA)
+		i = priv->stations[IWL_AP_ID].current_rate.s.rate;
+	else
+		i = priv->stations[IWL_STA_ID].current_rate.s.rate;
+	spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+	i = iwl_rate_index_from_plcp(i);
+	if (i == -1)
+		return sprintf(buf, "0\n");
+
+	return sprintf(buf, "%d%s\n",
+		       (iwl_rates[i].ieee >> 1),
+		       (iwl_rates[i].ieee & 0x1) ? ".5" : "");
+}
+
+static DEVICE_ATTR(rate, S_IRUSR, show_rate, NULL);
+
+static ssize_t store_retry_rate(struct device *d,
+				struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	struct iwl_priv *priv = dev_get_drvdata(d);
+
+	priv->retry_rate = simple_strtoul(buf, NULL, 0);
+	if (priv->retry_rate <= 0)
+		priv->retry_rate = 1;
+
+	return count;
+}
+
+static ssize_t show_retry_rate(struct device *d,
+			       struct device_attribute *attr, char *buf)
+{
+	struct iwl_priv *priv = dev_get_drvdata(d);
+	return sprintf(buf, "%d", priv->retry_rate);
+}
+
+static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
+		   store_retry_rate);
+
+static ssize_t store_power_level(struct device *d,
+				 struct device_attribute *attr,
+				 const char *buf, size_t count)
+{
+	struct iwl_priv *priv = dev_get_drvdata(d);
+	int rc;
+	int mode;
+
+	mode = simple_strtoul(buf, NULL, 0);
+	mutex_lock(&priv->mutex);
+
+	if (!iwl_is_ready(priv)) {
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	if ((mode < 1) || (mode > IWL_POWER_LIMIT) || (mode == IWL_POWER_AC))
+		mode = IWL_POWER_AC;
+	else
+		mode |= IWL_POWER_ENABLED;
+
+	if (mode != priv->power_mode) {
+		rc = iwl_send_power_mode(priv, IWL_POWER_LEVEL(mode));
+		if (rc) {
+			IWL_DEBUG_MAC80211("failed setting power mode.\n");
+			goto out;
+		}
+		priv->power_mode = mode;
+	}
+
+	rc = count;
+
+ out:
+	mutex_unlock(&priv->mutex);
+	return rc;
+}
+
+#define MAX_WX_STRING 80
+
+/* Values are in microsecond */
+static const s32 timeout_duration[] = {
+	350000,
+	250000,
+	75000,
+	37000,
+	25000,
+};
+static const s32 period_duration[] = {
+	400000,
+	700000,
+	1000000,
+	1000000,
+	1000000
+};
+
+static ssize_t show_power_level(struct device *d,
+				struct device_attribute *attr, char *buf)
+{
+	struct iwl_priv *priv = dev_get_drvdata(d);
+	int level = IWL_POWER_LEVEL(priv->power_mode);
+	char *p = buf;
+
+	p += sprintf(p, "%d ", level);
+	switch (level) {
+	case IWL_POWER_MODE_CAM:
+	case IWL_POWER_AC:
+		p += sprintf(p, "(AC)");
+		break;
+	case IWL_POWER_BATTERY:
+		p += sprintf(p, "(BATTERY)");
+		break;
+	default:
+		p += sprintf(p,
+			     "(Timeout %dms, Period %dms)",
+			     timeout_duration[level - 1] / 1000,
+			     period_duration[level - 1] / 1000);
+	}
+
+	if (!(priv->power_mode & IWL_POWER_ENABLED))
+		p += sprintf(p, " OFF\n");
+	else
+		p += sprintf(p, " \n");
+
+	return (p - buf + 1);
+
+}
+
+static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
+		   store_power_level);
+
+static ssize_t show_channels(struct device *d,
+			     struct device_attribute *attr, char *buf)
+{
+	struct iwl_priv *priv = dev_get_drvdata(d);
+	int len = 0, i;
+	struct ieee80211_channel *channels = NULL;
+	const struct ieee80211_hw_mode *hw_mode = NULL;
+	int count = 0;
+
+	if (!iwl_is_ready(priv))
+		return -EAGAIN;
+
+	hw_mode = iwl_get_hw_mode(priv, MODE_IEEE80211G);
+	if (!hw_mode)
+		hw_mode = iwl_get_hw_mode(priv, MODE_IEEE80211B);
+	if (hw_mode) {
+		channels = hw_mode->channels;
+		count = hw_mode->num_channels;
+	}
+
+	len +=
+	    sprintf(&buf[len],
+		    "Displaying %d channels in 2.4GHz band "
+		    "(802.11bg):\n", count);
+
+	for (i = 0; i < count; i++)
+		len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
+			       channels[i].chan,
+			       channels[i].power_level,
+			       channels[i].
+			       flag & IEEE80211_CHAN_W_RADAR_DETECT ?
+			       " (IEEE 802.11h required)" : "",
+			       (!(channels[i].flag & IEEE80211_CHAN_W_IBSS)
+				|| (channels[i].
+				    flag &
+				    IEEE80211_CHAN_W_RADAR_DETECT)) ? "" :
+			       ", IBSS",
+			       channels[i].
+			       flag & IEEE80211_CHAN_W_ACTIVE_SCAN ?
+			       "active/passive" : "passive only");
+
+	hw_mode = iwl_get_hw_mode(priv, MODE_IEEE80211A);
+	if (hw_mode) {
+		channels = hw_mode->channels;
+		count = hw_mode->num_channels;
+	} else {
+		channels = NULL;
+		count = 0;
+	}
+
+	len += sprintf(&buf[len], "Displaying %d channels in 5.2GHz band "
+		       "(802.11a):\n", count);
+
+	for (i = 0; i < count; i++)
+		len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
+			       channels[i].chan,
+			       channels[i].power_level,
+			       channels[i].
+			       flag & IEEE80211_CHAN_W_RADAR_DETECT ?
+			       " (IEEE 802.11h required)" : "",
+			       (!(channels[i].flag & IEEE80211_CHAN_W_IBSS)
+				|| (channels[i].
+				    flag &
+				    IEEE80211_CHAN_W_RADAR_DETECT)) ? "" :
+			       ", IBSS",
+			       channels[i].
+			       flag & IEEE80211_CHAN_W_ACTIVE_SCAN ?
+			       "active/passive" : "passive only");
+
+	return len;
+}
+
+static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
+
+static ssize_t show_statistics(struct device *d,
+			       struct device_attribute *attr, char *buf)
+{
+	struct iwl_priv *priv = dev_get_drvdata(d);
+	u32 size = sizeof(struct iwl_notif_statistics);
+	u32 len = 0, ofs = 0;
+	u8 *data = (u8 *) & priv->statistics;
+	int rc = 0;
+
+	if (!iwl_is_alive(priv))
+		return -EAGAIN;
+
+	mutex_lock(&priv->mutex);
+	rc = iwl_send_statistics_request(priv);
+	mutex_unlock(&priv->mutex);
+
+	if (rc) {
+		len = sprintf(buf,
+			      "Error sending statistics request: 0x%08X\n", rc);
+		return len;
+	}
+
+	while (size && (PAGE_SIZE - len)) {
+		hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
+				   PAGE_SIZE - len, 1);
+		len = strlen(buf);
+		if (PAGE_SIZE - len)
+			buf[len++] = '\n';
+
+		ofs += 16;
+		size -= min(size, 16U);
+	}
+
+	return len;
+}
+
+static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
+
+static ssize_t show_antenna(struct device *d,
+			    struct device_attribute *attr, char *buf)
+{
+	struct iwl_priv *priv = dev_get_drvdata(d);
+
+	if (!iwl_is_alive(priv))
+		return -EAGAIN;
+
+	return sprintf(buf, "%d\n", priv->antenna);
+}
+
+static ssize_t store_antenna(struct device *d,
+			     struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	int ant;
+	struct iwl_priv *priv = dev_get_drvdata(d);
+
+	if (count == 0)
+		return 0;
+
+	if (sscanf(buf, "%1i", &ant) != 1) {
+		IWL_DEBUG_INFO("not in hex or decimal form.\n");
+		return count;
+	}
+
+	if ((ant >= 0) && (ant <= 2)) {
+		IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant);
+		priv->antenna = (enum iwl_antenna)ant;
+	} else
+		IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant);
+
+
+	return count;
+}
+
+static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna);
+
+static ssize_t show_status(struct device *d,
+			   struct device_attribute *attr, char *buf)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
+	if (!iwl_is_alive(priv))
+		return -EAGAIN;
+	return sprintf(buf, "0x%08x\n", (int)priv->status);
+}
+
+static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
+
+static ssize_t dump_error_log(struct device *d,
+			      struct device_attribute *attr,
+			      const char *buf, size_t count)
+{
+	char *p = (char *)buf;
+
+	if (p[0] == '1')
+		iwl_dump_nic_error_log((struct iwl_priv *)d->driver_data);
+
+	return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log);
+
+static ssize_t dump_event_log(struct device *d,
+			      struct device_attribute *attr,
+			      const char *buf, size_t count)
+{
+	char *p = (char *)buf;
+
+	if (p[0] == '1')
+		iwl_dump_nic_event_log((struct iwl_priv *)d->driver_data);
+
+	return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log);
+
+/*****************************************************************************
+ *
+ * driver setup and teardown
+ *
+ *****************************************************************************/
+
+static void iwl_setup_deferred_work(struct iwl_priv *priv)
+{
+	priv->workqueue = create_workqueue(DRV_NAME);
+
+	init_waitqueue_head(&priv->wait_command_queue);
+
+	INIT_WORK(&priv->up, iwl_bg_up);
+	INIT_WORK(&priv->restart, iwl_bg_restart);
+	INIT_WORK(&priv->rx_replenish, iwl_bg_rx_replenish);
+	INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed);
+	INIT_WORK(&priv->request_scan, iwl_bg_request_scan);
+	INIT_WORK(&priv->abort_scan, iwl_bg_abort_scan);
+	INIT_WORK(&priv->rf_kill, iwl_bg_rf_kill);
+	INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update);
+	INIT_DELAYED_WORK(&priv->post_associate, iwl_bg_post_associate);
+	INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start);
+	INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start);
+	INIT_DELAYED_WORK(&priv->scan_check, iwl_bg_scan_check);
+
+	iwl_hw_setup_deferred_work(priv);
+
+	tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
+		     iwl_irq_tasklet, (unsigned long)priv);
+}
+
+static void iwl_cancel_deferred_work(struct iwl_priv *priv)
+{
+	iwl_hw_cancel_deferred_work(priv);
+
+	cancel_delayed_work(&priv->scan_check);
+	cancel_delayed_work(&priv->alive_start);
+	cancel_delayed_work(&priv->post_associate);
+	cancel_work_sync(&priv->beacon_update);
+}
+
+static struct attribute *iwl_sysfs_entries[] = {
+	&dev_attr_antenna.attr,
+	&dev_attr_channels.attr,
+	&dev_attr_dump_errors.attr,
+	&dev_attr_dump_events.attr,
+	&dev_attr_flags.attr,
+	&dev_attr_filter_flags.attr,
+#ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT
+	&dev_attr_measurement.attr,
+#endif
+	&dev_attr_power_level.attr,
+	&dev_attr_rate.attr,
+	&dev_attr_retry_rate.attr,
+	&dev_attr_rf_kill.attr,
+	&dev_attr_rs_window.attr,
+	&dev_attr_statistics.attr,
+	&dev_attr_status.attr,
+	&dev_attr_temperature.attr,
+	&dev_attr_tune.attr,
+	&dev_attr_tx_power.attr,
+
+	NULL
+};
+
+static struct attribute_group iwl_attribute_group = {
+	.name = NULL,		/* put in device directory */
+	.attrs = iwl_sysfs_entries,
+};
+
+static struct ieee80211_ops iwl_hw_ops = {
+	.tx = iwl_mac_tx,
+	.open = iwl_mac_open,
+	.stop = iwl_mac_stop,
+	.add_interface = iwl_mac_add_interface,
+	.remove_interface = iwl_mac_remove_interface,
+	.config = iwl_mac_config,
+	.config_interface = iwl_mac_config_interface,
+	.set_key = iwl_mac_set_key,
+	.get_stats = iwl_mac_get_stats,
+	.get_tx_stats = iwl_mac_get_tx_stats,
+	.conf_tx = iwl_mac_conf_tx,
+	.get_tsf = iwl_mac_get_tsf,
+	.reset_tsf = iwl_mac_reset_tsf,
+	.beacon_update = iwl_mac_beacon_update,
+	.hw_scan = iwl_mac_hw_scan
+};
+
+static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	int err = 0;
+	u32 pci_id;
+	struct iwl_priv *priv;
+	struct ieee80211_hw *hw;
+	int i;
+
+	if (iwl_param_disable_hw_scan) {
+		IWL_DEBUG_INFO("Disabling hw_scan\n");
+		iwl_hw_ops.hw_scan = NULL;
+	}
+
+	if ((iwl_param_queues_num > IWL_MAX_NUM_QUEUES) ||
+	    (iwl_param_queues_num < IWL_MIN_NUM_QUEUES)) {
+		IWL_ERROR("invalid queues_num, should be between %d and %d\n",
+			  IWL_MIN_NUM_QUEUES, IWL_MAX_NUM_QUEUES);
+		err = -EINVAL;
+		goto out;
+	}
+
+	/* mac80211 allocates memory for this device instance, including
+	 *   space for this driver's private structure */
+	hw = ieee80211_alloc_hw(sizeof(struct iwl_priv), &iwl_hw_ops);
+	if (hw == NULL) {
+		IWL_ERROR("Can not allocate network device\n");
+		err = -ENOMEM;
+		goto out;
+	}
+	SET_IEEE80211_DEV(hw, &pdev->dev);
+
+	IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
+	priv = hw->priv;
+	priv->hw = hw;
+
+	priv->pci_dev = pdev;
+	priv->antenna = (enum iwl_antenna)iwl_param_antenna;
+#ifdef CONFIG_IWLWIFI_DEBUG
+	iwl_debug_level = iwl_param_debug;
+	atomic_set(&priv->restrict_refcnt, 0);
+#endif
+	priv->retry_rate = 1;
+
+	priv->ibss_beacon = NULL;
+
+	/* Tell mac80211 and its clients (e.g. Wireless Extensions)
+	 *   the range of signal quality values that we'll provide.
+	 * Negative values for level/noise indicate that we'll provide dBm.
+	 * For WE, at least, non-0 values here *enable* display of values
+	 *   in app (iwconfig). */
+	hw->max_rssi = -20;	/* signal level, negative indicates dBm */
+	hw->max_noise = -20;	/* noise level, negative indicates dBm */
+	hw->max_signal = 100;	/* link quality indication (%) */
+
+	/* Tell mac80211 our Tx characteristics */
+	hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE;
+
+	hw->queues = 4;
+
+	spin_lock_init(&priv->lock);
+	spin_lock_init(&priv->power_data.lock);
+	spin_lock_init(&priv->sta_lock);
+	spin_lock_init(&priv->hcmd_lock);
+
+	for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++)
+		INIT_LIST_HEAD(&priv->ibss_mac_hash[i]);
+
+	INIT_LIST_HEAD(&priv->free_frames);
+
+	mutex_init(&priv->mutex);
+	if (pci_enable_device(pdev)) {
+		err = -ENODEV;
+		goto out_ieee80211_free_hw;
+	}
+
+	pci_set_master(pdev);
+
+	iwl_clear_stations_table(priv);
+
+	priv->data_retry_limit = -1;
+	priv->ieee_channels = NULL;
+	priv->ieee_rates = NULL;
+	priv->phymode = -1;
+
+	err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+	if (!err)
+		err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+	if (err) {
+		printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n");
+		goto out_pci_disable_device;
+	}
+
+	pci_set_drvdata(pdev, priv);
+	err = pci_request_regions(pdev, DRV_NAME);
+	if (err)
+		goto out_pci_disable_device;
+	/* We disable the RETRY_TIMEOUT register (0x41) to keep
+	 * PCI Tx retries from interfering with C3 CPU state */
+	pci_write_config_byte(pdev, 0x41, 0x00);
+	priv->hw_base = pci_iomap(pdev, 0, 0);
+	if (!priv->hw_base) {
+		err = -ENODEV;
+		goto out_pci_release_regions;
+	}
+
+	IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
+			(unsigned long long) pci_resource_len(pdev, 0));
+	IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base);
+
+	/* Initialize module parameter values here */
+
+	if (iwl_param_disable) {
+		set_bit(STATUS_RF_KILL_SW, &priv->status);
+		IWL_DEBUG_INFO("Radio disabled.\n");
+	}
+
+	priv->iw_mode = IEEE80211_IF_TYPE_STA;
+
+	pci_id =
+	    (priv->pci_dev->device << 16) | priv->pci_dev->subsystem_device;
+
+	switch (pci_id) {
+	case 0x42221005:	/* 0x4222 0x8086 0x1005 is BG SKU */
+	case 0x42221034:	/* 0x4222 0x8086 0x1034 is BG SKU */
+	case 0x42271014:	/* 0x4227 0x8086 0x1014 is BG SKU */
+	case 0x42221044:	/* 0x4222 0x8086 0x1044 is BG SKU */
+		priv->is_abg = 0;
+		break;
+
+	/*
+	 * Rest are assumed ABG SKU -- if this is not the
+	 * case then the card will get the wrong 'Detected'
+	 * line in the kernel log however the code that
+	 * initializes the GEO table will detect no A-band
+	 * channels and remove the is_abg mask.
+	 */
+	default:
+		priv->is_abg = 1;
+		break;
+	}
+
+	printk(KERN_INFO DRV_NAME
+	       ": Detected Intel PRO/Wireless 3945%sBG Network Connection\n",
+	       priv->is_abg ? "A" : "");
+
+	/* Device-specific setup */
+	if (iwl_hw_set_hw_setting(priv)) {
+		IWL_ERROR("failed to set hw settings\n");
+		mutex_unlock(&priv->mutex);
+		goto out_iounmap;
+	}
+
+#ifdef CONFIG_IWLWIFI_QOS
+	if (iwl_param_qos_enable)
+		priv->qos_data.qos_enable = 1;
+
+	iwl_reset_qos(priv);
+
+	priv->qos_data.qos_active = 0;
+	priv->qos_data.qos_cap.val = 0;
+#endif /* CONFIG_IWLWIFI_QOS */
+
+	iwl_set_rxon_channel(priv, MODE_IEEE80211G, 6);
+	iwl_setup_deferred_work(priv);
+	iwl_setup_rx_handlers(priv);
+
+	priv->rates_mask = IWL_RATES_MASK;
+	/* If power management is turned on, default to AC mode */
+	priv->power_mode = IWL_POWER_AC;
+	priv->user_txpower_limit = IWL_DEFAULT_TX_POWER;
+
+	pci_enable_msi(pdev);
+
+	err = request_irq(pdev->irq, iwl_isr, IRQF_SHARED, DRV_NAME, priv);
+	if (err) {
+		IWL_ERROR("Error allocating IRQ %d\n", pdev->irq);
+		goto out_disable_msi;
+	}
+
+	mutex_lock(&priv->mutex);
+
+	err = sysfs_create_group(&pdev->dev.kobj, &iwl_attribute_group);
+	if (err) {
+		IWL_ERROR("failed to create sysfs device attributes\n");
+		mutex_unlock(&priv->mutex);
+		goto out_release_irq;
+	}
+
+	/* fetch ucode file from disk, alloc and copy to bus-master buffers ...
+	 * ucode filename and max sizes are card-specific. */
+	err = iwl_read_ucode(priv);
+	if (err) {
+		IWL_ERROR("Could not read microcode: %d\n", err);
+		mutex_unlock(&priv->mutex);
+		goto out_pci_alloc;
+	}
+
+	mutex_unlock(&priv->mutex);
+
+	IWL_DEBUG_INFO("Queing UP work.\n");
+
+	queue_work(priv->workqueue, &priv->up);
+
+	return 0;
+
+ out_pci_alloc:
+	iwl_dealloc_ucode_pci(priv);
+
+	sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group);
+
+ out_release_irq:
+	free_irq(pdev->irq, priv);
+
+ out_disable_msi:
+	pci_disable_msi(pdev);
+	destroy_workqueue(priv->workqueue);
+	priv->workqueue = NULL;
+	iwl_unset_hw_setting(priv);
+
+ out_iounmap:
+	pci_iounmap(pdev, priv->hw_base);
+ out_pci_release_regions:
+	pci_release_regions(pdev);
+ out_pci_disable_device:
+	pci_disable_device(pdev);
+	pci_set_drvdata(pdev, NULL);
+ out_ieee80211_free_hw:
+	ieee80211_free_hw(priv->hw);
+ out:
+	return err;
+}
+
+static void iwl_pci_remove(struct pci_dev *pdev)
+{
+	struct iwl_priv *priv = pci_get_drvdata(pdev);
+	struct list_head *p, *q;
+	int i;
+
+	if (!priv)
+		return;
+
+	IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
+
+	mutex_lock(&priv->mutex);
+	set_bit(STATUS_EXIT_PENDING, &priv->status);
+	__iwl_down(priv);
+	mutex_unlock(&priv->mutex);
+
+	/* Free MAC hash list for ADHOC */
+	for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++) {
+		list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) {
+			list_del(p);
+			kfree(list_entry(p, struct iwl_ibss_seq, list));
+		}
+	}
+
+	sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group);
+
+	iwl_dealloc_ucode_pci(priv);
+
+	if (priv->rxq.bd)
+		iwl_rx_queue_free(priv, &priv->rxq);
+	iwl_hw_txq_ctx_free(priv);
+
+	iwl_unset_hw_setting(priv);
+	iwl_clear_stations_table(priv);
+
+	if (priv->mac80211_registered) {
+		ieee80211_unregister_hw(priv->hw);
+		iwl_rate_control_unregister(priv->hw);
+	}
+
+	/* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
+	 * priv->workqueue... so we can't take down the workqueue
+	 * until now... */
+	destroy_workqueue(priv->workqueue);
+	priv->workqueue = NULL;
+
+	free_irq(pdev->irq, priv);
+	pci_disable_msi(pdev);
+	pci_iounmap(pdev, priv->hw_base);
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
+	pci_set_drvdata(pdev, NULL);
+
+	kfree(priv->channel_info);
+
+	kfree(priv->ieee_channels);
+	kfree(priv->ieee_rates);
+
+	if (priv->ibss_beacon)
+		dev_kfree_skb(priv->ibss_beacon);
+
+	ieee80211_free_hw(priv->hw);
+}
+
+#ifdef CONFIG_PM
+
+static int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+	struct iwl_priv *priv = pci_get_drvdata(pdev);
+
+	mutex_lock(&priv->mutex);
+
+	set_bit(STATUS_IN_SUSPEND, &priv->status);
+
+	/* Take down the device; powers it off, etc. */
+	__iwl_down(priv);
+
+	if (priv->mac80211_registered)
+		ieee80211_stop_queues(priv->hw);
+
+	pci_save_state(pdev);
+	pci_disable_device(pdev);
+	pci_set_power_state(pdev, PCI_D3hot);
+
+	mutex_unlock(&priv->mutex);
+
+	return 0;
+}
+
+static void iwl_resume(struct iwl_priv *priv)
+{
+	unsigned long flags;
+
+	/* The following it a temporary work around due to the
+	 * suspend / resume not fully initializing the NIC correctly.
+	 * Without all of the following, resume will not attempt to take
+	 * down the NIC (it shouldn't really need to) and will just try
+	 * and bring the NIC back up.  However that fails during the
+	 * ucode verification process.  This then causes iwl_down to be
+	 * called *after* iwl_hw_nic_init() has succeeded -- which
+	 * then lets the next init sequence succeed.  So, we've
+	 * replicated all of that NIC init code here... */
+
+	iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
+
+	iwl_hw_nic_init(priv);
+
+	iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+	iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
+		    CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+	iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
+	iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+	iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+
+	/* tell the device to stop sending interrupts */
+	iwl_disable_interrupts(priv);
+
+	spin_lock_irqsave(&priv->lock, flags);
+	iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+
+	if (!iwl_grab_restricted_access(priv)) {
+		iwl_write_restricted_reg(priv, APMG_CLK_DIS_REG,
+					 APMG_CLK_VAL_DMA_CLK_RQT);
+		iwl_release_restricted_access(priv);
+	}
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	udelay(5);
+
+	iwl_hw_nic_reset(priv);
+
+	/* Bring the device back up */
+	clear_bit(STATUS_IN_SUSPEND, &priv->status);
+	queue_work(priv->workqueue, &priv->up);
+}
+
+static int iwl_pci_resume(struct pci_dev *pdev)
+{
+	struct iwl_priv *priv = pci_get_drvdata(pdev);
+	int err;
+
+	printk(KERN_INFO "Coming out of suspend...\n");
+
+	mutex_lock(&priv->mutex);
+
+	pci_set_power_state(pdev, PCI_D0);
+	err = pci_enable_device(pdev);
+	pci_restore_state(pdev);
+
+	/*
+	 * Suspend/Resume resets the PCI configuration space, so we have to
+	 * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
+	 * from interfering with C3 CPU state. pci_restore_state won't help
+	 * here since it only restores the first 64 bytes pci config header.
+	 */
+	pci_write_config_byte(pdev, 0x41, 0x00);
+
+	iwl_resume(priv);
+	mutex_unlock(&priv->mutex);
+
+	return 0;
+}
+
+#endif /* CONFIG_PM */
+
+/*****************************************************************************
+ *
+ * driver and module entry point
+ *
+ *****************************************************************************/
+
+static struct pci_driver iwl_driver = {
+	.name = DRV_NAME,
+	.id_table = iwl_hw_card_ids,
+	.probe = iwl_pci_probe,
+	.remove = __devexit_p(iwl_pci_remove),
+#ifdef CONFIG_PM
+	.suspend = iwl_pci_suspend,
+	.resume = iwl_pci_resume,
+#endif
+};
+
+static int __init iwl_init(void)
+{
+
+	int ret;
+	printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
+	printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
+	ret = pci_register_driver(&iwl_driver);
+	if (ret) {
+		IWL_ERROR("Unable to initialize PCI module\n");
+		return ret;
+	}
+#ifdef CONFIG_IWLWIFI_DEBUG
+	ret = driver_create_file(&iwl_driver.driver, &driver_attr_debug_level);
+	if (ret) {
+		IWL_ERROR("Unable to create driver sysfs file\n");
+		pci_unregister_driver(&iwl_driver);
+		return ret;
+	}
+#endif
+
+	return ret;
+}
+
+static void __exit iwl_exit(void)
+{
+#ifdef CONFIG_IWLWIFI_DEBUG
+	driver_remove_file(&iwl_driver.driver, &driver_attr_debug_level);
+#endif
+	pci_unregister_driver(&iwl_driver);
+}
+
+module_param_named(antenna, iwl_param_antenna, int, 0444);
+MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])");
+module_param_named(disable, iwl_param_disable, int, 0444);
+MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
+module_param_named(hwcrypto, iwl_param_hwcrypto, int, 0444);
+MODULE_PARM_DESC(hwcrypto,
+		 "using hardware crypto engine (default 0 [software])\n");
+module_param_named(debug, iwl_param_debug, int, 0444);
+MODULE_PARM_DESC(debug, "debug output mask");
+module_param_named(disable_hw_scan, iwl_param_disable_hw_scan, int, 0444);
+MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
+
+module_param_named(queues_num, iwl_param_queues_num, int, 0444);
+MODULE_PARM_DESC(queues_num, "number of hw queues.");
+
+/* QoS */
+module_param_named(qos_enable, iwl_param_qos_enable, int, 0444);
+MODULE_PARM_DESC(qos_enable, "enable all QoS functionality");
+
+module_exit(iwl_exit);
+module_init(iwl_init);