Linux-libre 4.5-gnu

1 files changed, 0 insertions, 3959 deletions

diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c
deleted file mode 100644
index e8b5545ca..000000000
--- a/drivers/net/wireless/iwlegacy/3945-mac.c
+++ /dev/null
@@ -1,3959 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 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:
- *  Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/pci-aspm.h>
-#include <linux/slab.h>
-#include <linux/dma-mapping.h>
-#include <linux/delay.h>
-#include <linux/sched.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/firmware.h>
-#include <linux/etherdevice.h>
-#include <linux/if_arp.h>
-
-#include <net/ieee80211_radiotap.h>
-#include <net/mac80211.h>
-
-#include <asm/div64.h>
-
-#define DRV_NAME	"iwl3945"
-
-#include "commands.h"
-#include "common.h"
-#include "3945.h"
-#include "iwl-spectrum.h"
-
-/*
- * module name, copyright, version, etc.
- */
-
-#define DRV_DESCRIPTION	\
-"Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux"
-
-#ifdef CONFIG_IWLEGACY_DEBUG
-#define VD "d"
-#else
-#define VD
-#endif
-
-/*
- * add "s" to indicate spectrum measurement included.
- * we add it here to be consistent with previous releases in which
- * this was configurable.
- */
-#define DRV_VERSION  IWLWIFI_VERSION VD "s"
-#define DRV_COPYRIGHT	"Copyright(c) 2003-2011 Intel Corporation"
-#define DRV_AUTHOR     "<ilw@linux.intel.com>"
-
-MODULE_DESCRIPTION(DRV_DESCRIPTION);
-MODULE_VERSION(DRV_VERSION);
-MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
-MODULE_LICENSE("GPL");
-
- /* module parameters */
-struct il_mod_params il3945_mod_params = {
-	.sw_crypto = 1,
-	.restart_fw = 1,
-	.disable_hw_scan = 1,
-	/* the rest are 0 by default */
-};
-
-/**
- * il3945_get_antenna_flags - Get antenna flags for RXON command
- * @il: eeprom and antenna fields are used to determine antenna flags
- *
- * il->eeprom39  is used to determine if antenna AUX/MAIN are reversed
- * il3945_mod_params.antenna specifies the antenna diversity mode:
- *
- * IL_ANTENNA_DIVERSITY - NIC selects best antenna by itself
- * IL_ANTENNA_MAIN      - Force MAIN antenna
- * IL_ANTENNA_AUX       - Force AUX antenna
- */
-__le32
-il3945_get_antenna_flags(const struct il_priv *il)
-{
-	struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
-
-	switch (il3945_mod_params.antenna) {
-	case IL_ANTENNA_DIVERSITY:
-		return 0;
-
-	case IL_ANTENNA_MAIN:
-		if (eeprom->antenna_switch_type)
-			return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK;
-		return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK;
-
-	case IL_ANTENNA_AUX:
-		if (eeprom->antenna_switch_type)
-			return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK;
-		return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK;
-	}
-
-	/* bad antenna selector value */
-	IL_ERR("Bad antenna selector value (0x%x)\n",
-	       il3945_mod_params.antenna);
-
-	return 0;		/* "diversity" is default if error */
-}
-
-static int
-il3945_set_ccmp_dynamic_key_info(struct il_priv *il,
-				 struct ieee80211_key_conf *keyconf, u8 sta_id)
-{
-	unsigned long flags;
-	__le16 key_flags = 0;
-	int ret;
-
-	key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK);
-	key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
-
-	if (sta_id == il->hw_params.bcast_id)
-		key_flags |= STA_KEY_MULTICAST_MSK;
-
-	keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
-	keyconf->hw_key_idx = keyconf->keyidx;
-	key_flags &= ~STA_KEY_FLG_INVALID;
-
-	spin_lock_irqsave(&il->sta_lock, flags);
-	il->stations[sta_id].keyinfo.cipher = keyconf->cipher;
-	il->stations[sta_id].keyinfo.keylen = keyconf->keylen;
-	memcpy(il->stations[sta_id].keyinfo.key, keyconf->key, keyconf->keylen);
-
-	memcpy(il->stations[sta_id].sta.key.key, keyconf->key, keyconf->keylen);
-
-	if ((il->stations[sta_id].sta.key.
-	     key_flags & STA_KEY_FLG_ENCRYPT_MSK) == STA_KEY_FLG_NO_ENC)
-		il->stations[sta_id].sta.key.key_offset =
-		    il_get_free_ucode_key_idx(il);
-	/* else, we are overriding an existing key => no need to allocated room
-	 * in uCode. */
-
-	WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
-	     "no space for a new key");
-
-	il->stations[sta_id].sta.key.key_flags = key_flags;
-	il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
-	il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
-
-	D_INFO("hwcrypto: modify ucode station key info\n");
-
-	ret = il_send_add_sta(il, &il->stations[sta_id].sta, CMD_ASYNC);
-
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-
-	return ret;
-}
-
-static int
-il3945_set_tkip_dynamic_key_info(struct il_priv *il,
-				 struct ieee80211_key_conf *keyconf, u8 sta_id)
-{
-	return -EOPNOTSUPP;
-}
-
-static int
-il3945_set_wep_dynamic_key_info(struct il_priv *il,
-				struct ieee80211_key_conf *keyconf, u8 sta_id)
-{
-	return -EOPNOTSUPP;
-}
-
-static int
-il3945_clear_sta_key_info(struct il_priv *il, u8 sta_id)
-{
-	unsigned long flags;
-	struct il_addsta_cmd sta_cmd;
-
-	spin_lock_irqsave(&il->sta_lock, flags);
-	memset(&il->stations[sta_id].keyinfo, 0, sizeof(struct il_hw_key));
-	memset(&il->stations[sta_id].sta.key, 0, sizeof(struct il4965_keyinfo));
-	il->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC;
-	il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
-	il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
-	memcpy(&sta_cmd, &il->stations[sta_id].sta,
-	       sizeof(struct il_addsta_cmd));
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-
-	D_INFO("hwcrypto: clear ucode station key info\n");
-	return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
-}
-
-static int
-il3945_set_dynamic_key(struct il_priv *il, struct ieee80211_key_conf *keyconf,
-		       u8 sta_id)
-{
-	int ret = 0;
-
-	keyconf->hw_key_idx = HW_KEY_DYNAMIC;
-
-	switch (keyconf->cipher) {
-	case WLAN_CIPHER_SUITE_CCMP:
-		ret = il3945_set_ccmp_dynamic_key_info(il, keyconf, sta_id);
-		break;
-	case WLAN_CIPHER_SUITE_TKIP:
-		ret = il3945_set_tkip_dynamic_key_info(il, keyconf, sta_id);
-		break;
-	case WLAN_CIPHER_SUITE_WEP40:
-	case WLAN_CIPHER_SUITE_WEP104:
-		ret = il3945_set_wep_dynamic_key_info(il, keyconf, sta_id);
-		break;
-	default:
-		IL_ERR("Unknown alg: %s alg=%x\n", __func__, keyconf->cipher);
-		ret = -EINVAL;
-	}
-
-	D_WEP("Set dynamic key: alg=%x len=%d idx=%d sta=%d ret=%d\n",
-	      keyconf->cipher, keyconf->keylen, keyconf->keyidx, sta_id, ret);
-
-	return ret;
-}
-
-static int
-il3945_remove_static_key(struct il_priv *il)
-{
-	int ret = -EOPNOTSUPP;
-
-	return ret;
-}
-
-static int
-il3945_set_static_key(struct il_priv *il, struct ieee80211_key_conf *key)
-{
-	if (key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
-	    key->cipher == WLAN_CIPHER_SUITE_WEP104)
-		return -EOPNOTSUPP;
-
-	IL_ERR("Static key invalid: cipher %x\n", key->cipher);
-	return -EINVAL;
-}
-
-static void
-il3945_clear_free_frames(struct il_priv *il)
-{
-	struct list_head *element;
-
-	D_INFO("%d frames on pre-allocated heap on clear.\n", il->frames_count);
-
-	while (!list_empty(&il->free_frames)) {
-		element = il->free_frames.next;
-		list_del(element);
-		kfree(list_entry(element, struct il3945_frame, list));
-		il->frames_count--;
-	}
-
-	if (il->frames_count) {
-		IL_WARN("%d frames still in use.  Did we lose one?\n",
-			il->frames_count);
-		il->frames_count = 0;
-	}
-}
-
-static struct il3945_frame *
-il3945_get_free_frame(struct il_priv *il)
-{
-	struct il3945_frame *frame;
-	struct list_head *element;
-	if (list_empty(&il->free_frames)) {
-		frame = kzalloc(sizeof(*frame), GFP_KERNEL);
-		if (!frame) {
-			IL_ERR("Could not allocate frame!\n");
-			return NULL;
-		}
-
-		il->frames_count++;
-		return frame;
-	}
-
-	element = il->free_frames.next;
-	list_del(element);
-	return list_entry(element, struct il3945_frame, list);
-}
-
-static void
-il3945_free_frame(struct il_priv *il, struct il3945_frame *frame)
-{
-	memset(frame, 0, sizeof(*frame));
-	list_add(&frame->list, &il->free_frames);
-}
-
-unsigned int
-il3945_fill_beacon_frame(struct il_priv *il, struct ieee80211_hdr *hdr,
-			 int left)
-{
-
-	if (!il_is_associated(il) || !il->beacon_skb)
-		return 0;
-
-	if (il->beacon_skb->len > left)
-		return 0;
-
-	memcpy(hdr, il->beacon_skb->data, il->beacon_skb->len);
-
-	return il->beacon_skb->len;
-}
-
-static int
-il3945_send_beacon_cmd(struct il_priv *il)
-{
-	struct il3945_frame *frame;
-	unsigned int frame_size;
-	int rc;
-	u8 rate;
-
-	frame = il3945_get_free_frame(il);
-
-	if (!frame) {
-		IL_ERR("Could not obtain free frame buffer for beacon "
-		       "command.\n");
-		return -ENOMEM;
-	}
-
-	rate = il_get_lowest_plcp(il);
-
-	frame_size = il3945_hw_get_beacon_cmd(il, frame, rate);
-
-	rc = il_send_cmd_pdu(il, C_TX_BEACON, frame_size, &frame->u.cmd[0]);
-
-	il3945_free_frame(il, frame);
-
-	return rc;
-}
-
-static void
-il3945_unset_hw_params(struct il_priv *il)
-{
-	if (il->_3945.shared_virt)
-		dma_free_coherent(&il->pci_dev->dev,
-				  sizeof(struct il3945_shared),
-				  il->_3945.shared_virt, il->_3945.shared_phys);
-}
-
-static void
-il3945_build_tx_cmd_hwcrypto(struct il_priv *il, struct ieee80211_tx_info *info,
-			     struct il_device_cmd *cmd,
-			     struct sk_buff *skb_frag, int sta_id)
-{
-	struct il3945_tx_cmd *tx_cmd = (struct il3945_tx_cmd *)cmd->cmd.payload;
-	struct il_hw_key *keyinfo = &il->stations[sta_id].keyinfo;
-
-	tx_cmd->sec_ctl = 0;
-
-	switch (keyinfo->cipher) {
-	case WLAN_CIPHER_SUITE_CCMP:
-		tx_cmd->sec_ctl = TX_CMD_SEC_CCM;
-		memcpy(tx_cmd->key, keyinfo->key, keyinfo->keylen);
-		D_TX("tx_cmd with AES hwcrypto\n");
-		break;
-
-	case WLAN_CIPHER_SUITE_TKIP:
-		break;
-
-	case WLAN_CIPHER_SUITE_WEP104:
-		tx_cmd->sec_ctl |= TX_CMD_SEC_KEY128;
-		/* fall through */
-	case WLAN_CIPHER_SUITE_WEP40:
-		tx_cmd->sec_ctl |=
-		    TX_CMD_SEC_WEP | (info->control.hw_key->
-				      hw_key_idx & TX_CMD_SEC_MSK) <<
-		    TX_CMD_SEC_SHIFT;
-
-		memcpy(&tx_cmd->key[3], keyinfo->key, keyinfo->keylen);
-
-		D_TX("Configuring packet for WEP encryption " "with key %d\n",
-		     info->control.hw_key->hw_key_idx);
-		break;
-
-	default:
-		IL_ERR("Unknown encode cipher %x\n", keyinfo->cipher);
-		break;
-	}
-}
-
-/*
- * handle build C_TX command notification.
- */
-static void
-il3945_build_tx_cmd_basic(struct il_priv *il, struct il_device_cmd *cmd,
-			  struct ieee80211_tx_info *info,
-			  struct ieee80211_hdr *hdr, u8 std_id)
-{
-	struct il3945_tx_cmd *tx_cmd = (struct il3945_tx_cmd *)cmd->cmd.payload;
-	__le32 tx_flags = tx_cmd->tx_flags;
-	__le16 fc = hdr->frame_control;
-
-	tx_cmd->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
-	if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
-		tx_flags |= TX_CMD_FLG_ACK_MSK;
-		if (ieee80211_is_mgmt(fc))
-			tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
-		if (ieee80211_is_probe_resp(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;
-	}
-
-	tx_cmd->sta_id = std_id;
-	if (ieee80211_has_morefrags(fc))
-		tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
-
-	if (ieee80211_is_data_qos(fc)) {
-		u8 *qc = ieee80211_get_qos_ctl(hdr);
-		tx_cmd->tid_tspec = qc[0] & 0xf;
-		tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK;
-	} else {
-		tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
-	}
-
-	il_tx_cmd_protection(il, info, fc, &tx_flags);
-
-	tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK);
-	if (ieee80211_is_mgmt(fc)) {
-		if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc))
-			tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(3);
-		else
-			tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(2);
-	} else {
-		tx_cmd->timeout.pm_frame_timeout = 0;
-	}
-
-	tx_cmd->driver_txop = 0;
-	tx_cmd->tx_flags = tx_flags;
-	tx_cmd->next_frame_len = 0;
-}
-
-/*
- * start C_TX command process
- */
-static int
-il3945_tx_skb(struct il_priv *il,
-	      struct ieee80211_sta *sta,
-	      struct sk_buff *skb)
-{
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	struct il3945_tx_cmd *tx_cmd;
-	struct il_tx_queue *txq = NULL;
-	struct il_queue *q = NULL;
-	struct il_device_cmd *out_cmd;
-	struct il_cmd_meta *out_meta;
-	dma_addr_t phys_addr;
-	dma_addr_t txcmd_phys;
-	int txq_id = skb_get_queue_mapping(skb);
-	u16 len, idx, hdr_len;
-	u16 firstlen, secondlen;
-	u8 id;
-	u8 unicast;
-	u8 sta_id;
-	u8 tid = 0;
-	__le16 fc;
-	u8 wait_write_ptr = 0;
-	unsigned long flags;
-
-	spin_lock_irqsave(&il->lock, flags);
-	if (il_is_rfkill(il)) {
-		D_DROP("Dropping - RF KILL\n");
-		goto drop_unlock;
-	}
-
-	if ((ieee80211_get_tx_rate(il->hw, info)->hw_value & 0xFF) ==
-	    IL_INVALID_RATE) {
-		IL_ERR("ERROR: No TX rate available.\n");
-		goto drop_unlock;
-	}
-
-	unicast = !is_multicast_ether_addr(hdr->addr1);
-	id = 0;
-
-	fc = hdr->frame_control;
-
-#ifdef CONFIG_IWLEGACY_DEBUG
-	if (ieee80211_is_auth(fc))
-		D_TX("Sending AUTH frame\n");
-	else if (ieee80211_is_assoc_req(fc))
-		D_TX("Sending ASSOC frame\n");
-	else if (ieee80211_is_reassoc_req(fc))
-		D_TX("Sending REASSOC frame\n");
-#endif
-
-	spin_unlock_irqrestore(&il->lock, flags);
-
-	hdr_len = ieee80211_hdrlen(fc);
-
-	/* Find idx into station table for destination station */
-	sta_id = il_sta_id_or_broadcast(il, sta);
-	if (sta_id == IL_INVALID_STATION) {
-		D_DROP("Dropping - INVALID STATION: %pM\n", hdr->addr1);
-		goto drop;
-	}
-
-	D_RATE("station Id %d\n", sta_id);
-
-	if (ieee80211_is_data_qos(fc)) {
-		u8 *qc = ieee80211_get_qos_ctl(hdr);
-		tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
-		if (unlikely(tid >= MAX_TID_COUNT))
-			goto drop;
-	}
-
-	/* Descriptor for chosen Tx queue */
-	txq = &il->txq[txq_id];
-	q = &txq->q;
-
-	if ((il_queue_space(q) < q->high_mark))
-		goto drop;
-
-	spin_lock_irqsave(&il->lock, flags);
-
-	idx = il_get_cmd_idx(q, q->write_ptr, 0);
-
-	txq->skbs[q->write_ptr] = skb;
-
-	/* Init first empty entry in queue's array of Tx/cmd buffers */
-	out_cmd = txq->cmd[idx];
-	out_meta = &txq->meta[idx];
-	tx_cmd = (struct il3945_tx_cmd *)out_cmd->cmd.payload;
-	memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
-	memset(tx_cmd, 0, sizeof(*tx_cmd));
-
-	/*
-	 * Set up the Tx-command (not MAC!) header.
-	 * Store the chosen Tx queue and TFD idx within the sequence field;
-	 * after Tx, uCode's Tx response will return this value so driver can
-	 * locate the frame within the tx queue and do post-tx processing.
-	 */
-	out_cmd->hdr.cmd = C_TX;
-	out_cmd->hdr.sequence =
-	    cpu_to_le16((u16)
-			(QUEUE_TO_SEQ(txq_id) | IDX_TO_SEQ(q->write_ptr)));
-
-	/* Copy MAC header from skb into command buffer */
-	memcpy(tx_cmd->hdr, hdr, hdr_len);
-
-	if (info->control.hw_key)
-		il3945_build_tx_cmd_hwcrypto(il, info, out_cmd, skb, sta_id);
-
-	/* TODO need this for burst mode later on */
-	il3945_build_tx_cmd_basic(il, out_cmd, info, hdr, sta_id);
-
-	il3945_hw_build_tx_cmd_rate(il, out_cmd, info, hdr, sta_id);
-
-	/* Total # bytes to be transmitted */
-	tx_cmd->len = cpu_to_le16((u16) skb->len);
-
-	tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK;
-	tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK;
-
-	/*
-	 * Use the first empty entry in this queue's command buffer array
-	 * to contain the Tx command and MAC header concatenated together
-	 * (payload data will be in another buffer).
-	 * Size of this varies, due to varying MAC header length.
-	 * If end is not dword aligned, we'll have 2 extra bytes at the end
-	 * of the MAC header (device reads on dword boundaries).
-	 * We'll tell device about this padding later.
-	 */
-	len =
-	    sizeof(struct il3945_tx_cmd) + sizeof(struct il_cmd_header) +
-	    hdr_len;
-	firstlen = (len + 3) & ~3;
-
-	/* Physical address of this Tx command's header (not MAC header!),
-	 * within command buffer array. */
-	txcmd_phys =
-	    pci_map_single(il->pci_dev, &out_cmd->hdr, firstlen,
-			   PCI_DMA_TODEVICE);
-	if (unlikely(pci_dma_mapping_error(il->pci_dev, txcmd_phys)))
-		goto drop_unlock;
-
-	/* Set up TFD's 2nd entry to point directly to remainder of skb,
-	 * if any (802.11 null frames have no payload). */
-	secondlen = skb->len - hdr_len;
-	if (secondlen > 0) {
-		phys_addr =
-		    pci_map_single(il->pci_dev, skb->data + hdr_len, secondlen,
-				   PCI_DMA_TODEVICE);
-		if (unlikely(pci_dma_mapping_error(il->pci_dev, phys_addr)))
-			goto drop_unlock;
-	}
-
-	/* Add buffer containing Tx command and MAC(!) header to TFD's
-	 * first entry */
-	il->ops->txq_attach_buf_to_tfd(il, txq, txcmd_phys, firstlen, 1, 0);
-	dma_unmap_addr_set(out_meta, mapping, txcmd_phys);
-	dma_unmap_len_set(out_meta, len, firstlen);
-	if (secondlen > 0)
-		il->ops->txq_attach_buf_to_tfd(il, txq, phys_addr, secondlen, 0,
-					       U32_PAD(secondlen));
-
-	if (!ieee80211_has_morefrags(hdr->frame_control)) {
-		txq->need_update = 1;
-	} else {
-		wait_write_ptr = 1;
-		txq->need_update = 0;
-	}
-
-	il_update_stats(il, true, fc, skb->len);
-
-	D_TX("sequence nr = 0X%x\n", le16_to_cpu(out_cmd->hdr.sequence));
-	D_TX("tx_flags = 0X%x\n", le32_to_cpu(tx_cmd->tx_flags));
-	il_print_hex_dump(il, IL_DL_TX, tx_cmd, sizeof(*tx_cmd));
-	il_print_hex_dump(il, IL_DL_TX, (u8 *) tx_cmd->hdr,
-			  ieee80211_hdrlen(fc));
-
-	/* Tell device the write idx *just past* this latest filled TFD */
-	q->write_ptr = il_queue_inc_wrap(q->write_ptr, q->n_bd);
-	il_txq_update_write_ptr(il, txq);
-	spin_unlock_irqrestore(&il->lock, flags);
-
-	if (il_queue_space(q) < q->high_mark && il->mac80211_registered) {
-		if (wait_write_ptr) {
-			spin_lock_irqsave(&il->lock, flags);
-			txq->need_update = 1;
-			il_txq_update_write_ptr(il, txq);
-			spin_unlock_irqrestore(&il->lock, flags);
-		}
-
-		il_stop_queue(il, txq);
-	}
-
-	return 0;
-
-drop_unlock:
-	spin_unlock_irqrestore(&il->lock, flags);
-drop:
-	return -1;
-}
-
-static int
-il3945_get_measurement(struct il_priv *il,
-		       struct ieee80211_measurement_params *params, u8 type)
-{
-	struct il_spectrum_cmd spectrum;
-	struct il_rx_pkt *pkt;
-	struct il_host_cmd cmd = {
-		.id = C_SPECTRUM_MEASUREMENT,
-		.data = (void *)&spectrum,
-		.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 (il_is_associated(il))
-		add_time =
-		    il_usecs_to_beacons(il,
-					le64_to_cpu(params->start_time) -
-					il->_3945.last_tsf,
-					le16_to_cpu(il->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 (il_is_associated(il))
-		spectrum.start_time =
-		    il_add_beacon_time(il, il->_3945.last_beacon_time, add_time,
-				       le16_to_cpu(il->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 (il->active.flags & RXON_FLG_BAND_24G_MSK)
-		spectrum.flags |=
-		    RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK |
-		    RXON_FLG_TGG_PROTECT_MSK;
-
-	rc = il_send_cmd_sync(il, &cmd);
-	if (rc)
-		return rc;
-
-	pkt = (struct il_rx_pkt *)cmd.reply_page;
-	if (pkt->hdr.flags & IL_CMD_FAILED_MSK) {
-		IL_ERR("Bad return from N_RX_ON_ASSOC command\n");
-		rc = -EIO;
-	}
-
-	spectrum_resp_status = le16_to_cpu(pkt->u.spectrum.status);
-	switch (spectrum_resp_status) {
-	case 0:		/* Command will be handled */
-		if (pkt->u.spectrum.id != 0xff) {
-			D_INFO("Replaced existing measurement: %d\n",
-			       pkt->u.spectrum.id);
-			il->measurement_status &= ~MEASUREMENT_READY;
-		}
-		il->measurement_status |= MEASUREMENT_ACTIVE;
-		rc = 0;
-		break;
-
-	case 1:		/* Command will not be handled */
-		rc = -EAGAIN;
-		break;
-	}
-
-	il_free_pages(il, cmd.reply_page);
-
-	return rc;
-}
-
-static void
-il3945_hdl_alive(struct il_priv *il, struct il_rx_buf *rxb)
-{
-	struct il_rx_pkt *pkt = rxb_addr(rxb);
-	struct il_alive_resp *palive;
-	struct delayed_work *pwork;
-
-	palive = &pkt->u.alive_frame;
-
-	D_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) {
-		D_INFO("Initialization Alive received.\n");
-		memcpy(&il->card_alive_init, &pkt->u.alive_frame,
-		       sizeof(struct il_alive_resp));
-		pwork = &il->init_alive_start;
-	} else {
-		D_INFO("Runtime Alive received.\n");
-		memcpy(&il->card_alive, &pkt->u.alive_frame,
-		       sizeof(struct il_alive_resp));
-		pwork = &il->alive_start;
-		il3945_disable_events(il);
-	}
-
-	/* 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(il->workqueue, pwork, msecs_to_jiffies(5));
-	else
-		IL_WARN("uCode did not respond OK.\n");
-}
-
-static void
-il3945_hdl_add_sta(struct il_priv *il, struct il_rx_buf *rxb)
-{
-#ifdef CONFIG_IWLEGACY_DEBUG
-	struct il_rx_pkt *pkt = rxb_addr(rxb);
-#endif
-
-	D_RX("Received C_ADD_STA: 0x%02X\n", pkt->u.status);
-}
-
-static void
-il3945_hdl_beacon(struct il_priv *il, struct il_rx_buf *rxb)
-{
-	struct il_rx_pkt *pkt = rxb_addr(rxb);
-	struct il3945_beacon_notif *beacon = &(pkt->u.beacon_status);
-#ifdef CONFIG_IWLEGACY_DEBUG
-	u8 rate = beacon->beacon_notify_hdr.rate;
-
-	D_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
-
-	il->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status);
-
-}
-
-/* Handle notification from uCode that card's power state is changing
- * due to software, hardware, or critical temperature RFKILL */
-static void
-il3945_hdl_card_state(struct il_priv *il, struct il_rx_buf *rxb)
-{
-	struct il_rx_pkt *pkt = rxb_addr(rxb);
-	u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
-	unsigned long status = il->status;
-
-	IL_WARN("Card state received: HW:%s SW:%s\n",
-		(flags & HW_CARD_DISABLED) ? "Kill" : "On",
-		(flags & SW_CARD_DISABLED) ? "Kill" : "On");
-
-	_il_wr(il, CSR_UCODE_DRV_GP1_SET, CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
-
-	if (flags & HW_CARD_DISABLED)
-		set_bit(S_RFKILL, &il->status);
-	else
-		clear_bit(S_RFKILL, &il->status);
-
-	il_scan_cancel(il);
-
-	if ((test_bit(S_RFKILL, &status) !=
-	     test_bit(S_RFKILL, &il->status)))
-		wiphy_rfkill_set_hw_state(il->hw->wiphy,
-					  test_bit(S_RFKILL, &il->status));
-	else
-		wake_up(&il->wait_command_queue);
-}
-
-/**
- * il3945_setup_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
-il3945_setup_handlers(struct il_priv *il)
-{
-	il->handlers[N_ALIVE] = il3945_hdl_alive;
-	il->handlers[C_ADD_STA] = il3945_hdl_add_sta;
-	il->handlers[N_ERROR] = il_hdl_error;
-	il->handlers[N_CHANNEL_SWITCH] = il_hdl_csa;
-	il->handlers[N_SPECTRUM_MEASUREMENT] = il_hdl_spectrum_measurement;
-	il->handlers[N_PM_SLEEP] = il_hdl_pm_sleep;
-	il->handlers[N_PM_DEBUG_STATS] = il_hdl_pm_debug_stats;
-	il->handlers[N_BEACON] = il3945_hdl_beacon;
-
-	/*
-	 * The same handler is used for both the REPLY to a discrete
-	 * stats request from the host as well as for the periodic
-	 * stats notifications (after received beacons) from the uCode.
-	 */
-	il->handlers[C_STATS] = il3945_hdl_c_stats;
-	il->handlers[N_STATS] = il3945_hdl_stats;
-
-	il_setup_rx_scan_handlers(il);
-	il->handlers[N_CARD_STATE] = il3945_hdl_card_state;
-
-	/* Set up hardware specific Rx handlers */
-	il3945_hw_handler_setup(il);
-}
-
-/************************** RX-FUNCTIONS ****************************/
-/*
- * Rx theory of operation
- *
- * The host allocates 32 DMA target addresses and passes the host address
- * to the firmware at register IL_RFDS_TBL_LOWER + N * RFD_SIZE where N is
- * 0 to 31
- *
- * Rx Queue Indexes
- * The host/firmware share two idx registers for managing the Rx buffers.
- *
- * The READ idx 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 idx is managed by the firmware once the card is enabled.
- *
- * The WRITE idx 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
- * IDX position, and WRITE to the last (READ - 1 wrapped)
- *
- * When the firmware places a packet in a buffer, it will advance the READ idx
- * and fire the RX interrupt.  The driver can then query the READ idx and
- * process as many packets as possible, moving the WRITE idx 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 replenish the iwl->rxq->rx_free.
- * + In il3945_rx_replenish (scheduled) if 'processed' != 'read' then the
- *   iwl->rxq is replenished and the READ IDX is updated (updating the
- *   'processed' and 'read' driver idxes as well)
- * + A received packet is processed and handed to the kernel network stack,
- *   detached from the iwl->rxq.  The driver 'processed' idx 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
- *   IDX 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:
- *
- * il3945_rx_replenish()     Replenishes rx_free list from rx_used, and calls
- *                            il3945_rx_queue_restock
- * il3945_rx_queue_restock() Moves available buffers from rx_free into Rx
- *                            queue, updates firmware pointers, and updates
- *                            the WRITE idx.  If insufficient rx_free buffers
- *                            are available, schedules il3945_rx_replenish
- *
- * -- enable interrupts --
- * ISR - il3945_rx()         Detach il_rx_bufs from pool up to the
- *                            READ IDX, detaching the SKB from the pool.
- *                            Moves the packet buffer from queue to rx_used.
- *                            Calls il3945_rx_queue_restock to refill any empty
- *                            slots.
- * ...
- *
- */
-
-/**
- * il3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
- */
-static inline __le32
-il3945_dma_addr2rbd_ptr(struct il_priv *il, dma_addr_t dma_addr)
-{
-	return cpu_to_le32((u32) dma_addr);
-}
-
-/**
- * il3945_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' idx forward to catch up with 'processed', and
- * also updates the memory address in the firmware to reference the new
- * target buffer.
- */
-static void
-il3945_rx_queue_restock(struct il_priv *il)
-{
-	struct il_rx_queue *rxq = &il->rxq;
-	struct list_head *element;
-	struct il_rx_buf *rxb;
-	unsigned long flags;
-	int write;
-
-	spin_lock_irqsave(&rxq->lock, flags);
-	write = rxq->write & ~0x7;
-	while (il_rx_queue_space(rxq) > 0 && rxq->free_count) {
-		/* Get next free Rx buffer, remove from free list */
-		element = rxq->rx_free.next;
-		rxb = list_entry(element, struct il_rx_buf, list);
-		list_del(element);
-
-		/* Point to Rx buffer via next RBD in circular buffer */
-		rxq->bd[rxq->write] =
-		    il3945_dma_addr2rbd_ptr(il, rxb->page_dma);
-		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(il->workqueue, &il->rx_replenish);
-
-	/* If we've added more space for the firmware to place data, tell it.
-	 * Increment device's write pointer in multiples of 8. */
-	if (rxq->write_actual != (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);
-		il_rx_queue_update_write_ptr(il, rxq);
-	}
-}
-
-/**
- * il3945_rx_replenish - 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 il3945_rx_queue_restock.
- * This is called as a scheduled work item (except for during initialization)
- */
-static void
-il3945_rx_allocate(struct il_priv *il, gfp_t priority)
-{
-	struct il_rx_queue *rxq = &il->rxq;
-	struct list_head *element;
-	struct il_rx_buf *rxb;
-	struct page *page;
-	dma_addr_t page_dma;
-	unsigned long flags;
-	gfp_t gfp_mask = priority;
-
-	while (1) {
-		spin_lock_irqsave(&rxq->lock, flags);
-		if (list_empty(&rxq->rx_used)) {
-			spin_unlock_irqrestore(&rxq->lock, flags);
-			return;
-		}
-		spin_unlock_irqrestore(&rxq->lock, flags);
-
-		if (rxq->free_count > RX_LOW_WATERMARK)
-			gfp_mask |= __GFP_NOWARN;
-
-		if (il->hw_params.rx_page_order > 0)
-			gfp_mask |= __GFP_COMP;
-
-		/* Alloc a new receive buffer */
-		page = alloc_pages(gfp_mask, il->hw_params.rx_page_order);
-		if (!page) {
-			if (net_ratelimit())
-				D_INFO("Failed to allocate SKB buffer.\n");
-			if (rxq->free_count <= RX_LOW_WATERMARK &&
-			    net_ratelimit())
-				IL_ERR("Failed to allocate SKB buffer with %0x."
-				       "Only %u free buffers remaining.\n",
-				       priority, rxq->free_count);
-			/* 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;
-		}
-
-		/* Get physical address of RB/SKB */
-		page_dma =
-		    pci_map_page(il->pci_dev, page, 0,
-				 PAGE_SIZE << il->hw_params.rx_page_order,
-				 PCI_DMA_FROMDEVICE);
-
-		if (unlikely(pci_dma_mapping_error(il->pci_dev, page_dma))) {
-			__free_pages(page, il->hw_params.rx_page_order);
-			break;
-		}
-
-		spin_lock_irqsave(&rxq->lock, flags);
-
-		if (list_empty(&rxq->rx_used)) {
-			spin_unlock_irqrestore(&rxq->lock, flags);
-			pci_unmap_page(il->pci_dev, page_dma,
-				       PAGE_SIZE << il->hw_params.rx_page_order,
-				       PCI_DMA_FROMDEVICE);
-			__free_pages(page, il->hw_params.rx_page_order);
-			return;
-		}
-
-		element = rxq->rx_used.next;
-		rxb = list_entry(element, struct il_rx_buf, list);
-		list_del(element);
-
-		rxb->page = page;
-		rxb->page_dma = page_dma;
-		list_add_tail(&rxb->list, &rxq->rx_free);
-		rxq->free_count++;
-		il->alloc_rxb_page++;
-
-		spin_unlock_irqrestore(&rxq->lock, flags);
-	}
-}
-
-void
-il3945_rx_queue_reset(struct il_priv *il, struct il_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].page != NULL) {
-			pci_unmap_page(il->pci_dev, rxq->pool[i].page_dma,
-				       PAGE_SIZE << il->hw_params.rx_page_order,
-				       PCI_DMA_FROMDEVICE);
-			__il_free_pages(il, rxq->pool[i].page);
-			rxq->pool[i].page = 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->write_actual = 0;
-	rxq->free_count = 0;
-	spin_unlock_irqrestore(&rxq->lock, flags);
-}
-
-void
-il3945_rx_replenish(void *data)
-{
-	struct il_priv *il = data;
-	unsigned long flags;
-
-	il3945_rx_allocate(il, GFP_KERNEL);
-
-	spin_lock_irqsave(&il->lock, flags);
-	il3945_rx_queue_restock(il);
-	spin_unlock_irqrestore(&il->lock, flags);
-}
-
-static void
-il3945_rx_replenish_now(struct il_priv *il)
-{
-	il3945_rx_allocate(il, GFP_ATOMIC);
-
-	il3945_rx_queue_restock(il);
-}
-
-/* Assumes that the skb field of the buffers in 'pool' is kept accurate.
- * If an SKB has been detached, the POOL needs to have its 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
- */
-static void
-il3945_rx_queue_free(struct il_priv *il, struct il_rx_queue *rxq)
-{
-	int i;
-	for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
-		if (rxq->pool[i].page != NULL) {
-			pci_unmap_page(il->pci_dev, rxq->pool[i].page_dma,
-				       PAGE_SIZE << il->hw_params.rx_page_order,
-				       PCI_DMA_FROMDEVICE);
-			__il_free_pages(il, rxq->pool[i].page);
-			rxq->pool[i].page = NULL;
-		}
-	}
-
-	dma_free_coherent(&il->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd,
-			  rxq->bd_dma);
-	dma_free_coherent(&il->pci_dev->dev, sizeof(struct il_rb_status),
-			  rxq->rb_stts, rxq->rb_stts_dma);
-	rxq->bd = NULL;
-	rxq->rb_stts = NULL;
-}
-
-/* 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
-il3945_calc_db_from_ratio(int sig_ratio)
-{
-	/* 1000:1 or higher just report as 60 dB */
-	if (sig_ratio >= 1000)
-		return 60;
-
-	/* 100:1 or higher, 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];
-}
-
-/**
- * il3945_rx_handle - Main entry function for receiving responses from uCode
- *
- * Uses the il->handlers callback function array to invoke
- * the appropriate handlers, including command responses,
- * frame-received notifications, and other notifications.
- */
-static void
-il3945_rx_handle(struct il_priv *il)
-{
-	struct il_rx_buf *rxb;
-	struct il_rx_pkt *pkt;
-	struct il_rx_queue *rxq = &il->rxq;
-	u32 r, i;
-	int reclaim;
-	unsigned long flags;
-	u8 fill_rx = 0;
-	u32 count = 8;
-	int total_empty = 0;
-
-	/* uCode's read idx (stored in shared DRAM) indicates the last Rx
-	 * buffer that the driver may process (last buffer filled by ucode). */
-	r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF;
-	i = rxq->read;
-
-	/* calculate total frames need to be restock after handling RX */
-	total_empty = r - rxq->write_actual;
-	if (total_empty < 0)
-		total_empty += RX_QUEUE_SIZE;
-
-	if (total_empty > (RX_QUEUE_SIZE / 2))
-		fill_rx = 1;
-	/* Rx interrupt, but nothing sent from uCode */
-	if (i == r)
-		D_RX("r = %d, i = %d\n", r, i);
-
-	while (i != r) {
-		int len;
-
-		rxb = rxq->queue[i];
-
-		/* If an RXB doesn't have a Rx 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_unmap_page(il->pci_dev, rxb->page_dma,
-			       PAGE_SIZE << il->hw_params.rx_page_order,
-			       PCI_DMA_FROMDEVICE);
-		pkt = rxb_addr(rxb);
-
-		len = le32_to_cpu(pkt->len_n_flags) & IL_RX_FRAME_SIZE_MSK;
-		len += sizeof(u32);	/* account for status word */
-
-		reclaim = il_need_reclaim(il, pkt);
-
-		/* Based on type of command response or notification,
-		 *   handle those that need handling via function in
-		 *   handlers table.  See il3945_setup_handlers() */
-		if (il->handlers[pkt->hdr.cmd]) {
-			D_RX("r = %d, i = %d, %s, 0x%02x\n", r, i,
-			     il_get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
-			il->isr_stats.handlers[pkt->hdr.cmd]++;
-			il->handlers[pkt->hdr.cmd] (il, rxb);
-		} else {
-			/* No handling needed */
-			D_RX("r %d i %d No handler needed for %s, 0x%02x\n", r,
-			     i, il_get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
-		}
-
-		/*
-		 * XXX: After here, we should always check rxb->page
-		 * against NULL before touching it or its virtual
-		 * memory (pkt). Because some handler might have
-		 * already taken or freed the pages.
-		 */
-
-		if (reclaim) {
-			/* Invoke any callbacks, transfer the buffer to caller,
-			 * and fire off the (possibly) blocking il_send_cmd()
-			 * as we reclaim the driver command queue */
-			if (rxb->page)
-				il_tx_cmd_complete(il, rxb);
-			else
-				IL_WARN("Claim null rxb?\n");
-		}
-
-		/* Reuse the page if possible. For notification packets and
-		 * SKBs that fail to Rx correctly, add them back into the
-		 * rx_free list for reuse later. */
-		spin_lock_irqsave(&rxq->lock, flags);
-		if (rxb->page != NULL) {
-			rxb->page_dma =
-			    pci_map_page(il->pci_dev, rxb->page, 0,
-					 PAGE_SIZE << il->hw_params.
-					 rx_page_order, PCI_DMA_FROMDEVICE);
-			if (unlikely(pci_dma_mapping_error(il->pci_dev,
-							   rxb->page_dma))) {
-				__il_free_pages(il, rxb->page);
-				rxb->page = NULL;
-				list_add_tail(&rxb->list, &rxq->rx_used);
-			} else {
-				list_add_tail(&rxb->list, &rxq->rx_free);
-				rxq->free_count++;
-			}
-		} else
-			list_add_tail(&rxb->list, &rxq->rx_used);
-
-		spin_unlock_irqrestore(&rxq->lock, flags);
-
-		i = (i + 1) & RX_QUEUE_MASK;
-		/* If there are a lot of unused frames,
-		 * restock the Rx queue so ucode won't assert. */
-		if (fill_rx) {
-			count++;
-			if (count >= 8) {
-				rxq->read = i;
-				il3945_rx_replenish_now(il);
-				count = 0;
-			}
-		}
-	}
-
-	/* Backtrack one entry */
-	rxq->read = i;
-	if (fill_rx)
-		il3945_rx_replenish_now(il);
-	else
-		il3945_rx_queue_restock(il);
-}
-
-/* call this function to flush any scheduled tasklet */
-static inline void
-il3945_synchronize_irq(struct il_priv *il)
-{
-	/* wait to make sure we flush pending tasklet */
-	synchronize_irq(il->pci_dev->irq);
-	tasklet_kill(&il->irq_tasklet);
-}
-
-static const char *
-il3945_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))
-
-void
-il3945_dump_nic_error_log(struct il_priv *il)
-{
-	u32 i;
-	u32 desc, time, count, base, data1;
-	u32 blink1, blink2, ilink1, ilink2;
-
-	base = le32_to_cpu(il->card_alive.error_event_table_ptr);
-
-	if (!il3945_hw_valid_rtc_data_addr(base)) {
-		IL_ERR("Not valid error log pointer 0x%08X\n", base);
-		return;
-	}
-
-	count = il_read_targ_mem(il, base);
-
-	if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
-		IL_ERR("Start IWL Error Log Dump:\n");
-		IL_ERR("Status: 0x%08lX, count: %d\n", il->status, count);
-	}
-
-	IL_ERR("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 = il_read_targ_mem(il, base + i);
-		time = il_read_targ_mem(il, base + i + 1 * sizeof(u32));
-		blink1 = il_read_targ_mem(il, base + i + 2 * sizeof(u32));
-		blink2 = il_read_targ_mem(il, base + i + 3 * sizeof(u32));
-		ilink1 = il_read_targ_mem(il, base + i + 4 * sizeof(u32));
-		ilink2 = il_read_targ_mem(il, base + i + 5 * sizeof(u32));
-		data1 = il_read_targ_mem(il, base + i + 6 * sizeof(u32));
-
-		IL_ERR("%-13s (0x%X) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
-		       il3945_desc_lookup(desc), desc, time, blink1, blink2,
-		       ilink1, ilink2, data1);
-	}
-}
-
-static void
-il3945_irq_tasklet(struct il_priv *il)
-{
-	u32 inta, handled = 0;
-	u32 inta_fh;
-	unsigned long flags;
-#ifdef CONFIG_IWLEGACY_DEBUG
-	u32 inta_mask;
-#endif
-
-	spin_lock_irqsave(&il->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 = _il_rd(il, CSR_INT);
-	_il_wr(il, 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 = _il_rd(il, CSR_FH_INT_STATUS);
-	_il_wr(il, CSR_FH_INT_STATUS, inta_fh);
-
-#ifdef CONFIG_IWLEGACY_DEBUG
-	if (il_get_debug_level(il) & IL_DL_ISR) {
-		/* just for debug */
-		inta_mask = _il_rd(il, CSR_INT_MASK);
-		D_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", inta,
-		      inta_mask, inta_fh);
-	}
-#endif
-
-	spin_unlock_irqrestore(&il->lock, flags);
-
-	/* 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 & CSR39_FH_INT_RX_MASK)
-		inta |= CSR_INT_BIT_FH_RX;
-	if (inta_fh & CSR39_FH_INT_TX_MASK)
-		inta |= CSR_INT_BIT_FH_TX;
-
-	/* Now service all interrupt bits discovered above. */
-	if (inta & CSR_INT_BIT_HW_ERR) {
-		IL_ERR("Hardware error detected.  Restarting.\n");
-
-		/* Tell the device to stop sending interrupts */
-		il_disable_interrupts(il);
-
-		il->isr_stats.hw++;
-		il_irq_handle_error(il);
-
-		handled |= CSR_INT_BIT_HW_ERR;
-
-		return;
-	}
-#ifdef CONFIG_IWLEGACY_DEBUG
-	if (il_get_debug_level(il) & (IL_DL_ISR)) {
-		/* NIC fires this, but we don't use it, redundant with WAKEUP */
-		if (inta & CSR_INT_BIT_SCD) {
-			D_ISR("Scheduler finished to transmit "
-			      "the frame/frames.\n");
-			il->isr_stats.sch++;
-		}
-
-		/* Alive notification via Rx interrupt will do the real work */
-		if (inta & CSR_INT_BIT_ALIVE) {
-			D_ISR("Alive interrupt\n");
-			il->isr_stats.alive++;
-		}
-	}
-#endif
-	/* Safely ignore these bits for debug checks below */
-	inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
-
-	/* Error detected by uCode */
-	if (inta & CSR_INT_BIT_SW_ERR) {
-		IL_ERR("Microcode SW error detected. " "Restarting 0x%X.\n",
-		       inta);
-		il->isr_stats.sw++;
-		il_irq_handle_error(il);
-		handled |= CSR_INT_BIT_SW_ERR;
-	}
-
-	/* uCode wakes up after power-down sleep */
-	if (inta & CSR_INT_BIT_WAKEUP) {
-		D_ISR("Wakeup interrupt\n");
-		il_rx_queue_update_write_ptr(il, &il->rxq);
-
-		spin_lock_irqsave(&il->lock, flags);
-		il_txq_update_write_ptr(il, &il->txq[0]);
-		il_txq_update_write_ptr(il, &il->txq[1]);
-		il_txq_update_write_ptr(il, &il->txq[2]);
-		il_txq_update_write_ptr(il, &il->txq[3]);
-		il_txq_update_write_ptr(il, &il->txq[4]);
-		spin_unlock_irqrestore(&il->lock, flags);
-
-		il->isr_stats.wakeup++;
-		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)) {
-		il3945_rx_handle(il);
-		il->isr_stats.rx++;
-		handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
-	}
-
-	if (inta & CSR_INT_BIT_FH_TX) {
-		D_ISR("Tx interrupt\n");
-		il->isr_stats.tx++;
-
-		_il_wr(il, CSR_FH_INT_STATUS, (1 << 6));
-		il_wr(il, FH39_TCSR_CREDIT(FH39_SRVC_CHNL), 0x0);
-		handled |= CSR_INT_BIT_FH_TX;
-	}
-
-	if (inta & ~handled) {
-		IL_ERR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
-		il->isr_stats.unhandled++;
-	}
-
-	if (inta & ~il->inta_mask) {
-		IL_WARN("Disabled INTA bits 0x%08x were pending\n",
-			inta & ~il->inta_mask);
-		IL_WARN("   with inta_fh = 0x%08x\n", inta_fh);
-	}
-
-	/* Re-enable all interrupts */
-	/* only Re-enable if disabled by irq */
-	if (test_bit(S_INT_ENABLED, &il->status))
-		il_enable_interrupts(il);
-
-#ifdef CONFIG_IWLEGACY_DEBUG
-	if (il_get_debug_level(il) & (IL_DL_ISR)) {
-		inta = _il_rd(il, CSR_INT);
-		inta_mask = _il_rd(il, CSR_INT_MASK);
-		inta_fh = _il_rd(il, CSR_FH_INT_STATUS);
-		D_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
-		      "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
-	}
-#endif
-}
-
-static int
-il3945_get_channels_for_scan(struct il_priv *il, enum ieee80211_band band,
-			     u8 is_active, u8 n_probes,
-			     struct il3945_scan_channel *scan_ch,
-			     struct ieee80211_vif *vif)
-{
-	struct ieee80211_channel *chan;
-	const struct ieee80211_supported_band *sband;
-	const struct il_channel_info *ch_info;
-	u16 passive_dwell = 0;
-	u16 active_dwell = 0;
-	int added, i;
-
-	sband = il_get_hw_mode(il, band);
-	if (!sband)
-		return 0;
-
-	active_dwell = il_get_active_dwell_time(il, band, n_probes);
-	passive_dwell = il_get_passive_dwell_time(il, band, vif);
-
-	if (passive_dwell <= active_dwell)
-		passive_dwell = active_dwell + 1;
-
-	for (i = 0, added = 0; i < il->scan_request->n_channels; i++) {
-		chan = il->scan_request->channels[i];
-
-		if (chan->band != band)
-			continue;
-
-		scan_ch->channel = chan->hw_value;
-
-		ch_info = il_get_channel_info(il, band, scan_ch->channel);
-		if (!il_is_channel_valid(ch_info)) {
-			D_SCAN("Channel %d is INVALID for this band.\n",
-			       scan_ch->channel);
-			continue;
-		}
-
-		scan_ch->active_dwell = cpu_to_le16(active_dwell);
-		scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
-		/* If passive , set up for auto-switch
-		 *  and use long active_dwell time.
-		 */
-		if (!is_active || il_is_channel_passive(ch_info) ||
-		    (chan->flags & IEEE80211_CHAN_NO_IR)) {
-			scan_ch->type = 0;	/* passive */
-			if (IL_UCODE_API(il->ucode_ver) == 1)
-				scan_ch->active_dwell =
-				    cpu_to_le16(passive_dwell - 1);
-		} else {
-			scan_ch->type = 1;	/* active */
-		}
-
-		/* Set direct probe bits. These may be used both for active
-		 * scan channels (probes gets sent right away),
-		 * or for passive channels (probes get se sent only after
-		 * hearing clear Rx packet).*/
-		if (IL_UCODE_API(il->ucode_ver) >= 2) {
-			if (n_probes)
-				scan_ch->type |= IL39_SCAN_PROBE_MASK(n_probes);
-		} else {
-			/* uCode v1 does not allow setting direct probe bits on
-			 * passive channel. */
-			if ((scan_ch->type & 1) && n_probes)
-				scan_ch->type |= IL39_SCAN_PROBE_MASK(n_probes);
-		}
-
-		/* Set txpower levels to defaults */
-		scan_ch->tpc.dsp_atten = 110;
-		/* scan_pwr_info->tpc.dsp_atten; */
-
-		/*scan_pwr_info->tpc.tx_gain; */
-		if (band == IEEE80211_BAND_5GHZ)
-			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;
-			 */
-		}
-
-		D_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++;
-	}
-
-	D_SCAN("total channels to scan %d\n", added);
-	return added;
-}
-
-static void
-il3945_init_hw_rates(struct il_priv *il, struct ieee80211_rate *rates)
-{
-	int i;
-
-	for (i = 0; i < RATE_COUNT_LEGACY; i++) {
-		rates[i].bitrate = il3945_rates[i].ieee * 5;
-		rates[i].hw_value = i;	/* Rate scaling will work on idxes */
-		rates[i].hw_value_short = i;
-		rates[i].flags = 0;
-		if (i > IL39_LAST_OFDM_RATE || i < IL_FIRST_OFDM_RATE) {
-			/*
-			 * If CCK != 1M then set short preamble rate flag.
-			 */
-			rates[i].flags |=
-			    (il3945_rates[i].plcp ==
-			     10) ? 0 : IEEE80211_RATE_SHORT_PREAMBLE;
-		}
-	}
-}
-
-/******************************************************************************
- *
- * uCode download functions
- *
- ******************************************************************************/
-
-static void
-il3945_dealloc_ucode_pci(struct il_priv *il)
-{
-	il_free_fw_desc(il->pci_dev, &il->ucode_code);
-	il_free_fw_desc(il->pci_dev, &il->ucode_data);
-	il_free_fw_desc(il->pci_dev, &il->ucode_data_backup);
-	il_free_fw_desc(il->pci_dev, &il->ucode_init);
-	il_free_fw_desc(il->pci_dev, &il->ucode_init_data);
-	il_free_fw_desc(il->pci_dev, &il->ucode_boot);
-}
-
-/**
- * il3945_verify_inst_full - verify runtime uCode image in card vs. host,
- *     looking at all data.
- */
-static int
-il3945_verify_inst_full(struct il_priv *il, __le32 * image, u32 len)
-{
-	u32 val;
-	u32 save_len = len;
-	int rc = 0;
-	u32 errcnt;
-
-	D_INFO("ucode inst image size is %u\n", len);
-
-	il_wr(il, HBUS_TARG_MEM_RADDR, IL39_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 IL_DL_IO is set */
-		val = _il_rd(il, HBUS_TARG_MEM_RDAT);
-		if (val != le32_to_cpu(*image)) {
-			IL_ERR("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;
-		}
-	}
-
-	if (!errcnt)
-		D_INFO("ucode image in INSTRUCTION memory is good\n");
-
-	return rc;
-}
-
-/**
- * il3945_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
-il3945_verify_inst_sparse(struct il_priv *il, __le32 * image, u32 len)
-{
-	u32 val;
-	int rc = 0;
-	u32 errcnt = 0;
-	u32 i;
-
-	D_INFO("ucode inst image size is %u\n", len);
-
-	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 IL_DL_IO is set */
-		il_wr(il, HBUS_TARG_MEM_RADDR, i + IL39_RTC_INST_LOWER_BOUND);
-		val = _il_rd(il, HBUS_TARG_MEM_RDAT);
-		if (val != le32_to_cpu(*image)) {
-#if 0				/* Enable this if you want to see details */
-			IL_ERR("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;
-		}
-	}
-
-	return rc;
-}
-
-/**
- * il3945_verify_ucode - determine which instruction image is in SRAM,
- *    and verify its contents
- */
-static int
-il3945_verify_ucode(struct il_priv *il)
-{
-	__le32 *image;
-	u32 len;
-	int rc = 0;
-
-	/* Try bootstrap */
-	image = (__le32 *) il->ucode_boot.v_addr;
-	len = il->ucode_boot.len;
-	rc = il3945_verify_inst_sparse(il, image, len);
-	if (rc == 0) {
-		D_INFO("Bootstrap uCode is good in inst SRAM\n");
-		return 0;
-	}
-
-	/* Try initialize */
-	image = (__le32 *) il->ucode_init.v_addr;
-	len = il->ucode_init.len;
-	rc = il3945_verify_inst_sparse(il, image, len);
-	if (rc == 0) {
-		D_INFO("Initialize uCode is good in inst SRAM\n");
-		return 0;
-	}
-
-	/* Try runtime/protocol */
-	image = (__le32 *) il->ucode_code.v_addr;
-	len = il->ucode_code.len;
-	rc = il3945_verify_inst_sparse(il, image, len);
-	if (rc == 0) {
-		D_INFO("Runtime uCode is good in inst SRAM\n");
-		return 0;
-	}
-
-	IL_ERR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
-
-	/* Since nothing seems to match, show first several data entries in
-	 * instruction SRAM, so maybe visual inspection will give a clue.
-	 * Selection of bootstrap image (vs. other images) is arbitrary. */
-	image = (__le32 *) il->ucode_boot.v_addr;
-	len = il->ucode_boot.len;
-	rc = il3945_verify_inst_full(il, image, len);
-
-	return rc;
-}
-
-static void
-il3945_nic_start(struct il_priv *il)
-{
-	/* Remove all resets to allow NIC to operate */
-	_il_wr(il, CSR_RESET, 0);
-}
-
-#define IL3945_UCODE_GET(item)						\
-static u32 il3945_ucode_get_##item(const struct il_ucode_header *ucode)\
-{									\
-	return le32_to_cpu(ucode->v1.item);				\
-}
-
-static u32
-il3945_ucode_get_header_size(u32 api_ver)
-{
-	return 24;
-}
-
-static u8 *
-il3945_ucode_get_data(const struct il_ucode_header *ucode)
-{
-	return (u8 *) ucode->v1.data;
-}
-
-IL3945_UCODE_GET(inst_size);
-IL3945_UCODE_GET(data_size);
-IL3945_UCODE_GET(init_size);
-IL3945_UCODE_GET(init_data_size);
-IL3945_UCODE_GET(boot_size);
-
-/**
- * il3945_read_ucode - Read uCode images from disk file.
- *
- * Copy into buffers for card to fetch via bus-mastering
- */
-static int
-il3945_read_ucode(struct il_priv *il)
-{
-	const struct il_ucode_header *ucode;
-	int ret = -EINVAL, idx;
-	const struct firmware *ucode_raw;
-	/* firmware file name contains uCode/driver compatibility version */
-	const char *name_pre = il->cfg->fw_name_pre;
-	const unsigned int api_max = il->cfg->ucode_api_max;
-	const unsigned int api_min = il->cfg->ucode_api_min;
-	char buf[25];
-	u8 *src;
-	size_t len;
-	u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size;
-
-	/* Ask kernel firmware_class module to get the boot firmware off disk.
-	 * reject_firmware() is synchronous, file is in memory on return. */
-	for (idx = api_max; idx >= api_min; idx--) {
-		sprintf(buf, "/*(DEBLOBBED)*/");
-		ret = reject_firmware(&ucode_raw, buf, &il->pci_dev->dev);
-		if (ret < 0) {
-			IL_ERR("%s firmware file req failed: %d\n", buf, ret);
-			if (ret == -ENOENT)
-				continue;
-			else
-				goto error;
-		} else {
-			if (idx < api_max)
-				IL_ERR("Loaded firmware %s, "
-				       "which is deprecated. "
-				       " Please use API v%u instead.\n", buf,
-				       api_max);
-			D_INFO("Got firmware '%s' file "
-			       "(%zd bytes) from disk\n", buf, ucode_raw->size);
-			break;
-		}
-	}
-
-	if (ret < 0)
-		goto error;
-
-	/* Make sure that we got at least our header! */
-	if (ucode_raw->size < il3945_ucode_get_header_size(1)) {
-		IL_ERR("File size way too small!\n");
-		ret = -EINVAL;
-		goto err_release;
-	}
-
-	/* Data from ucode file:  header followed by uCode images */
-	ucode = (struct il_ucode_header *)ucode_raw->data;
-
-	il->ucode_ver = le32_to_cpu(ucode->ver);
-	api_ver = IL_UCODE_API(il->ucode_ver);
-	inst_size = il3945_ucode_get_inst_size(ucode);
-	data_size = il3945_ucode_get_data_size(ucode);
-	init_size = il3945_ucode_get_init_size(ucode);
-	init_data_size = il3945_ucode_get_init_data_size(ucode);
-	boot_size = il3945_ucode_get_boot_size(ucode);
-	src = il3945_ucode_get_data(ucode);
-
-	/* api_ver should match the api version forming part of the
-	 * firmware filename ... but we don't check for that and only rely
-	 * on the API version read from firmware header from here on forward */
-
-	if (api_ver < api_min || api_ver > api_max) {
-		IL_ERR("Driver unable to support your firmware API. "
-		       "Driver supports v%u, firmware is v%u.\n", api_max,
-		       api_ver);
-		il->ucode_ver = 0;
-		ret = -EINVAL;
-		goto err_release;
-	}
-	if (api_ver != api_max)
-		IL_ERR("Firmware has old API version. Expected %u, "
-		       "got %u. New firmware can be obtained "
-		       "from http://www.intellinuxwireless.org.\n", api_max,
-		       api_ver);
-
-	IL_INFO("loaded firmware version %u.%u.%u.%u\n",
-		IL_UCODE_MAJOR(il->ucode_ver), IL_UCODE_MINOR(il->ucode_ver),
-		IL_UCODE_API(il->ucode_ver), IL_UCODE_SERIAL(il->ucode_ver));
-
-	snprintf(il->hw->wiphy->fw_version, sizeof(il->hw->wiphy->fw_version),
-		 "%u.%u.%u.%u", IL_UCODE_MAJOR(il->ucode_ver),
-		 IL_UCODE_MINOR(il->ucode_ver), IL_UCODE_API(il->ucode_ver),
-		 IL_UCODE_SERIAL(il->ucode_ver));
-
-	D_INFO("f/w package hdr ucode version raw = 0x%x\n", il->ucode_ver);
-	D_INFO("f/w package hdr runtime inst size = %u\n", inst_size);
-	D_INFO("f/w package hdr runtime data size = %u\n", data_size);
-	D_INFO("f/w package hdr init inst size = %u\n", init_size);
-	D_INFO("f/w package hdr init data size = %u\n", init_data_size);
-	D_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 !=
-	    il3945_ucode_get_header_size(api_ver) + inst_size + data_size +
-	    init_size + init_data_size + boot_size) {
-
-		D_INFO("uCode file size %zd does not match expected size\n",
-		       ucode_raw->size);
-		ret = -EINVAL;
-		goto err_release;
-	}
-
-	/* Verify that uCode images will fit in card's SRAM */
-	if (inst_size > IL39_MAX_INST_SIZE) {
-		D_INFO("uCode instr len %d too large to fit in\n", inst_size);
-		ret = -EINVAL;
-		goto err_release;
-	}
-
-	if (data_size > IL39_MAX_DATA_SIZE) {
-		D_INFO("uCode data len %d too large to fit in\n", data_size);
-		ret = -EINVAL;
-		goto err_release;
-	}
-	if (init_size > IL39_MAX_INST_SIZE) {
-		D_INFO("uCode init instr len %d too large to fit in\n",
-		       init_size);
-		ret = -EINVAL;
-		goto err_release;
-	}
-	if (init_data_size > IL39_MAX_DATA_SIZE) {
-		D_INFO("uCode init data len %d too large to fit in\n",
-		       init_data_size);
-		ret = -EINVAL;
-		goto err_release;
-	}
-	if (boot_size > IL39_MAX_BSM_SIZE) {
-		D_INFO("uCode boot instr len %d too large to fit in\n",
-		       boot_size);
-		ret = -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 */
-	il->ucode_code.len = inst_size;
-	il_alloc_fw_desc(il->pci_dev, &il->ucode_code);
-
-	il->ucode_data.len = data_size;
-	il_alloc_fw_desc(il->pci_dev, &il->ucode_data);
-
-	il->ucode_data_backup.len = data_size;
-	il_alloc_fw_desc(il->pci_dev, &il->ucode_data_backup);
-
-	if (!il->ucode_code.v_addr || !il->ucode_data.v_addr ||
-	    !il->ucode_data_backup.v_addr)
-		goto err_pci_alloc;
-
-	/* Initialization instructions and data */
-	if (init_size && init_data_size) {
-		il->ucode_init.len = init_size;
-		il_alloc_fw_desc(il->pci_dev, &il->ucode_init);
-
-		il->ucode_init_data.len = init_data_size;
-		il_alloc_fw_desc(il->pci_dev, &il->ucode_init_data);
-
-		if (!il->ucode_init.v_addr || !il->ucode_init_data.v_addr)
-			goto err_pci_alloc;
-	}
-
-	/* Bootstrap (instructions only, no data) */
-	if (boot_size) {
-		il->ucode_boot.len = boot_size;
-		il_alloc_fw_desc(il->pci_dev, &il->ucode_boot);
-
-		if (!il->ucode_boot.v_addr)
-			goto err_pci_alloc;
-	}
-
-	/* Copy images into buffers for card's bus-master reads ... */
-
-	/* Runtime instructions (first block of data in file) */
-	len = inst_size;
-	D_INFO("Copying (but not loading) uCode instr len %zd\n", len);
-	memcpy(il->ucode_code.v_addr, src, len);
-	src += len;
-
-	D_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
-	       il->ucode_code.v_addr, (u32) il->ucode_code.p_addr);
-
-	/* Runtime data (2nd block)
-	 * NOTE:  Copy into backup buffer will be done in il3945_up()  */
-	len = data_size;
-	D_INFO("Copying (but not loading) uCode data len %zd\n", len);
-	memcpy(il->ucode_data.v_addr, src, len);
-	memcpy(il->ucode_data_backup.v_addr, src, len);
-	src += len;
-
-	/* Initialization instructions (3rd block) */
-	if (init_size) {
-		len = init_size;
-		D_INFO("Copying (but not loading) init instr len %zd\n", len);
-		memcpy(il->ucode_init.v_addr, src, len);
-		src += len;
-	}
-
-	/* Initialization data (4th block) */
-	if (init_data_size) {
-		len = init_data_size;
-		D_INFO("Copying (but not loading) init data len %zd\n", len);
-		memcpy(il->ucode_init_data.v_addr, src, len);
-		src += len;
-	}
-
-	/* Bootstrap instructions (5th block) */
-	len = boot_size;
-	D_INFO("Copying (but not loading) boot instr len %zd\n", len);
-	memcpy(il->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:
-	IL_ERR("failed to allocate pci memory\n");
-	ret = -ENOMEM;
-	il3945_dealloc_ucode_pci(il);
-
-err_release:
-	release_firmware(ucode_raw);
-
-error:
-	return ret;
-}
-
-/**
- * il3945_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
-il3945_set_ucode_ptrs(struct il_priv *il)
-{
-	dma_addr_t pinst;
-	dma_addr_t pdata;
-
-	/* bits 31:0 for 3945 */
-	pinst = il->ucode_code.p_addr;
-	pdata = il->ucode_data_backup.p_addr;
-
-	/* Tell bootstrap uCode where to find image to load */
-	il_wr_prph(il, BSM_DRAM_INST_PTR_REG, pinst);
-	il_wr_prph(il, BSM_DRAM_DATA_PTR_REG, pdata);
-	il_wr_prph(il, BSM_DRAM_DATA_BYTECOUNT_REG, il->ucode_data.len);
-
-	/* Inst byte count must be last to set up, bit 31 signals uCode
-	 *   that all new ptr/size info is in place */
-	il_wr_prph(il, BSM_DRAM_INST_BYTECOUNT_REG,
-		   il->ucode_code.len | BSM_DRAM_INST_LOAD);
-
-	D_INFO("Runtime uCode pointers are set.\n");
-
-	return 0;
-}
-
-/**
- * il3945_init_alive_start - Called after N_ALIVE notification received
- *
- * Called after N_ALIVE notification received from "initialize" uCode.
- *
- * Tell "initialize" uCode to go ahead and load the runtime uCode.
- */
-static void
-il3945_init_alive_start(struct il_priv *il)
-{
-	/* Check alive response for "valid" sign from uCode */
-	if (il->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 */
-		D_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 (il3945_verify_ucode(il)) {
-		/* Runtime instruction load was bad;
-		 * take it all the way back down so we can try again */
-		D_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. */
-	D_INFO("Initialization Alive received.\n");
-	if (il3945_set_ucode_ptrs(il)) {
-		/* Runtime instruction load won't happen;
-		 * take it all the way back down so we can try again */
-		D_INFO("Couldn't set up uCode pointers.\n");
-		goto restart;
-	}
-	return;
-
-restart:
-	queue_work(il->workqueue, &il->restart);
-}
-
-/**
- * il3945_alive_start - called after N_ALIVE notification received
- *                   from protocol/runtime uCode (initialization uCode's
- *                   Alive gets handled by il3945_init_alive_start()).
- */
-static void
-il3945_alive_start(struct il_priv *il)
-{
-	int thermal_spin = 0;
-	u32 rfkill;
-
-	D_INFO("Runtime Alive received.\n");
-
-	if (il->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 */
-		D_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 (il3945_verify_ucode(il)) {
-		/* Runtime instruction load was bad;
-		 * take it all the way back down so we can try again */
-		D_INFO("Bad runtime uCode load.\n");
-		goto restart;
-	}
-
-	rfkill = il_rd_prph(il, APMG_RFKILL_REG);
-	D_INFO("RFKILL status: 0x%x\n", rfkill);
-
-	if (rfkill & 0x1) {
-		clear_bit(S_RFKILL, &il->status);
-		/* if RFKILL is not on, then wait for thermal
-		 * sensor in adapter to kick in */
-		while (il3945_hw_get_temperature(il) == 0) {
-			thermal_spin++;
-			udelay(10);
-		}
-
-		if (thermal_spin)
-			D_INFO("Thermal calibration took %dus\n",
-			       thermal_spin * 10);
-	} else
-		set_bit(S_RFKILL, &il->status);
-
-	/* After the ALIVE response, we can send commands to 3945 uCode */
-	set_bit(S_ALIVE, &il->status);
-
-	/* Enable watchdog to monitor the driver tx queues */
-	il_setup_watchdog(il);
-
-	if (il_is_rfkill(il))
-		return;
-
-	ieee80211_wake_queues(il->hw);
-
-	il->active_rate = RATES_MASK_3945;
-
-	il_power_update_mode(il, true);
-
-	if (il_is_associated(il)) {
-		struct il3945_rxon_cmd *active_rxon =
-		    (struct il3945_rxon_cmd *)(&il->active);
-
-		il->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
-		active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
-	} else {
-		/* Initialize our rx_config data */
-		il_connection_init_rx_config(il);
-	}
-
-	/* Configure Bluetooth device coexistence support */
-	il_send_bt_config(il);
-
-	set_bit(S_READY, &il->status);
-
-	/* Configure the adapter for unassociated operation */
-	il3945_commit_rxon(il);
-
-	il3945_reg_txpower_periodic(il);
-
-	D_INFO("ALIVE processing complete.\n");
-	wake_up(&il->wait_command_queue);
-
-	return;
-
-restart:
-	queue_work(il->workqueue, &il->restart);
-}
-
-static void il3945_cancel_deferred_work(struct il_priv *il);
-
-static void
-__il3945_down(struct il_priv *il)
-{
-	unsigned long flags;
-	int exit_pending;
-
-	D_INFO(DRV_NAME " is going down\n");
-
-	il_scan_cancel_timeout(il, 200);
-
-	exit_pending = test_and_set_bit(S_EXIT_PENDING, &il->status);
-
-	/* Stop TX queues watchdog. We need to have S_EXIT_PENDING bit set
-	 * to prevent rearm timer */
-	del_timer_sync(&il->watchdog);
-
-	/* Station information will now be cleared in device */
-	il_clear_ucode_stations(il);
-	il_dealloc_bcast_stations(il);
-	il_clear_driver_stations(il);
-
-	/* Unblock any waiting calls */
-	wake_up_all(&il->wait_command_queue);
-
-	/* Wipe out the EXIT_PENDING status bit if we are not actually
-	 * exiting the module */
-	if (!exit_pending)
-		clear_bit(S_EXIT_PENDING, &il->status);
-
-	/* stop and reset the on-board processor */
-	_il_wr(il, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
-
-	/* tell the device to stop sending interrupts */
-	spin_lock_irqsave(&il->lock, flags);
-	il_disable_interrupts(il);
-	spin_unlock_irqrestore(&il->lock, flags);
-	il3945_synchronize_irq(il);
-
-	if (il->mac80211_registered)
-		ieee80211_stop_queues(il->hw);
-
-	/* If we have not previously called il3945_init() then
-	 * clear all bits but the RF Kill bits and return */
-	if (!il_is_init(il)) {
-		il->status =
-		    test_bit(S_RFKILL, &il->status) << S_RFKILL |
-		    test_bit(S_GEO_CONFIGURED, &il->status) << S_GEO_CONFIGURED |
-		    test_bit(S_EXIT_PENDING, &il->status) << S_EXIT_PENDING;
-		goto exit;
-	}
-
-	/* ...otherwise clear out all the status bits but the RF Kill
-	 * bit and continue taking the NIC down. */
-	il->status &=
-	    test_bit(S_RFKILL, &il->status) << S_RFKILL |
-	    test_bit(S_GEO_CONFIGURED, &il->status) << S_GEO_CONFIGURED |
-	    test_bit(S_FW_ERROR, &il->status) << S_FW_ERROR |
-	    test_bit(S_EXIT_PENDING, &il->status) << S_EXIT_PENDING;
-
-	/*
-	 * We disabled and synchronized interrupt, and priv->mutex is taken, so
-	 * here is the only thread which will program device registers, but
-	 * still have lockdep assertions, so we are taking reg_lock.
-	 */
-	spin_lock_irq(&il->reg_lock);
-	/* FIXME: il_grab_nic_access if rfkill is off ? */
-
-	il3945_hw_txq_ctx_stop(il);
-	il3945_hw_rxq_stop(il);
-	/* Power-down device's busmaster DMA clocks */
-	_il_wr_prph(il, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT);
-	udelay(5);
-	/* Stop the device, and put it in low power state */
-	_il_apm_stop(il);
-
-	spin_unlock_irq(&il->reg_lock);
-
-	il3945_hw_txq_ctx_free(il);
-exit:
-	memset(&il->card_alive, 0, sizeof(struct il_alive_resp));
-
-	if (il->beacon_skb)
-		dev_kfree_skb(il->beacon_skb);
-	il->beacon_skb = NULL;
-
-	/* clear out any free frames */
-	il3945_clear_free_frames(il);
-}
-
-static void
-il3945_down(struct il_priv *il)
-{
-	mutex_lock(&il->mutex);
-	__il3945_down(il);
-	mutex_unlock(&il->mutex);
-
-	il3945_cancel_deferred_work(il);
-}
-
-#define MAX_HW_RESTARTS 5
-
-static int
-il3945_alloc_bcast_station(struct il_priv *il)
-{
-	unsigned long flags;
-	u8 sta_id;
-
-	spin_lock_irqsave(&il->sta_lock, flags);
-	sta_id = il_prep_station(il, il_bcast_addr, false, NULL);
-	if (sta_id == IL_INVALID_STATION) {
-		IL_ERR("Unable to prepare broadcast station\n");
-		spin_unlock_irqrestore(&il->sta_lock, flags);
-
-		return -EINVAL;
-	}
-
-	il->stations[sta_id].used |= IL_STA_DRIVER_ACTIVE;
-	il->stations[sta_id].used |= IL_STA_BCAST;
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-
-	return 0;
-}
-
-static int
-__il3945_up(struct il_priv *il)
-{
-	int rc, i;
-
-	rc = il3945_alloc_bcast_station(il);
-	if (rc)
-		return rc;
-
-	if (test_bit(S_EXIT_PENDING, &il->status)) {
-		IL_WARN("Exit pending; will not bring the NIC up\n");
-		return -EIO;
-	}
-
-	if (!il->ucode_data_backup.v_addr || !il->ucode_data.v_addr) {
-		IL_ERR("ucode not available for device bring up\n");
-		return -EIO;
-	}
-
-	/* If platform's RF_KILL switch is NOT set to KILL */
-	if (_il_rd(il, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
-		clear_bit(S_RFKILL, &il->status);
-	else {
-		set_bit(S_RFKILL, &il->status);
-		return -ERFKILL;
-	}
-
-	_il_wr(il, CSR_INT, 0xFFFFFFFF);
-
-	rc = il3945_hw_nic_init(il);
-	if (rc) {
-		IL_ERR("Unable to int nic\n");
-		return rc;
-	}
-
-	/* make sure rfkill handshake bits are cleared */
-	_il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
-	_il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
-
-	/* clear (again), then enable host interrupts */
-	_il_wr(il, CSR_INT, 0xFFFFFFFF);
-	il_enable_interrupts(il);
-
-	/* really make sure rfkill handshake bits are cleared */
-	_il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
-	_il_wr(il, 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(il->ucode_data_backup.v_addr, il->ucode_data.v_addr,
-	       il->ucode_data.len);
-
-	/* We return success when we resume from suspend and rf_kill is on. */
-	if (test_bit(S_RFKILL, &il->status))
-		return 0;
-
-	for (i = 0; i < MAX_HW_RESTARTS; i++) {
-
-		/* load bootstrap state machine,
-		 * load bootstrap program into processor's memory,
-		 * prepare to load the "initialize" uCode */
-		rc = il->ops->load_ucode(il);
-
-		if (rc) {
-			IL_ERR("Unable to set up bootstrap uCode: %d\n", rc);
-			continue;
-		}
-
-		/* start card; "initialize" will load runtime ucode */
-		il3945_nic_start(il);
-
-		D_INFO(DRV_NAME " is coming up\n");
-
-		return 0;
-	}
-
-	set_bit(S_EXIT_PENDING, &il->status);
-	__il3945_down(il);
-	clear_bit(S_EXIT_PENDING, &il->status);
-
-	/* tried to restart and config the device for as long as our
-	 * patience could withstand */
-	IL_ERR("Unable to initialize device after %d attempts.\n", i);
-	return -EIO;
-}
-
-/*****************************************************************************
- *
- * Workqueue callbacks
- *
- *****************************************************************************/
-
-static void
-il3945_bg_init_alive_start(struct work_struct *data)
-{
-	struct il_priv *il =
-	    container_of(data, struct il_priv, init_alive_start.work);
-
-	mutex_lock(&il->mutex);
-	if (test_bit(S_EXIT_PENDING, &il->status))
-		goto out;
-
-	il3945_init_alive_start(il);
-out:
-	mutex_unlock(&il->mutex);
-}
-
-static void
-il3945_bg_alive_start(struct work_struct *data)
-{
-	struct il_priv *il =
-	    container_of(data, struct il_priv, alive_start.work);
-
-	mutex_lock(&il->mutex);
-	if (test_bit(S_EXIT_PENDING, &il->status) || il->txq == NULL)
-		goto out;
-
-	il3945_alive_start(il);
-out:
-	mutex_unlock(&il->mutex);
-}
-
-/*
- * 3945 cannot interrupt driver when hardware rf kill switch toggles;
- * driver must poll CSR_GP_CNTRL_REG register for change.  This register
- * *is* readable even when device has been SW_RESET into low power mode
- * (e.g. during RF KILL).
- */
-static void
-il3945_rfkill_poll(struct work_struct *data)
-{
-	struct il_priv *il =
-	    container_of(data, struct il_priv, _3945.rfkill_poll.work);
-	bool old_rfkill = test_bit(S_RFKILL, &il->status);
-	bool new_rfkill =
-	    !(_il_rd(il, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW);
-
-	if (new_rfkill != old_rfkill) {
-		if (new_rfkill)
-			set_bit(S_RFKILL, &il->status);
-		else
-			clear_bit(S_RFKILL, &il->status);
-
-		wiphy_rfkill_set_hw_state(il->hw->wiphy, new_rfkill);
-
-		D_RF_KILL("RF_KILL bit toggled to %s.\n",
-			  new_rfkill ? "disable radio" : "enable radio");
-	}
-
-	/* Keep this running, even if radio now enabled.  This will be
-	 * cancelled in mac_start() if system decides to start again */
-	queue_delayed_work(il->workqueue, &il->_3945.rfkill_poll,
-			   round_jiffies_relative(2 * HZ));
-
-}
-
-int
-il3945_request_scan(struct il_priv *il, struct ieee80211_vif *vif)
-{
-	struct il_host_cmd cmd = {
-		.id = C_SCAN,
-		.len = sizeof(struct il3945_scan_cmd),
-		.flags = CMD_SIZE_HUGE,
-	};
-	struct il3945_scan_cmd *scan;
-	u8 n_probes = 0;
-	enum ieee80211_band band;
-	bool is_active = false;
-	int ret;
-	u16 len;
-
-	lockdep_assert_held(&il->mutex);
-
-	if (!il->scan_cmd) {
-		il->scan_cmd =
-		    kmalloc(sizeof(struct il3945_scan_cmd) + IL_MAX_SCAN_SIZE,
-			    GFP_KERNEL);
-		if (!il->scan_cmd) {
-			D_SCAN("Fail to allocate scan memory\n");
-			return -ENOMEM;
-		}
-	}
-	scan = il->scan_cmd;
-	memset(scan, 0, sizeof(struct il3945_scan_cmd) + IL_MAX_SCAN_SIZE);
-
-	scan->quiet_plcp_th = IL_PLCP_QUIET_THRESH;
-	scan->quiet_time = IL_ACTIVE_QUIET_TIME;
-
-	if (il_is_associated(il)) {
-		u16 interval;
-		u32 extra;
-		u32 suspend_time = 100;
-		u32 scan_suspend_time = 100;
-
-		D_INFO("Scanning while associated...\n");
-
-		interval = vif->bss_conf.beacon_int;
-
-		scan->suspend_time = 0;
-		scan->max_out_time = cpu_to_le32(200 * 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);
-		D_SCAN("suspend_time 0x%X beacon interval %d\n",
-		       scan_suspend_time, interval);
-	}
-
-	if (il->scan_request->n_ssids) {
-		int i, p = 0;
-		D_SCAN("Kicking off active scan\n");
-		for (i = 0; i < il->scan_request->n_ssids; i++) {
-			/* always does wildcard anyway */
-			if (!il->scan_request->ssids[i].ssid_len)
-				continue;
-			scan->direct_scan[p].id = WLAN_EID_SSID;
-			scan->direct_scan[p].len =
-			    il->scan_request->ssids[i].ssid_len;
-			memcpy(scan->direct_scan[p].ssid,
-			       il->scan_request->ssids[i].ssid,
-			       il->scan_request->ssids[i].ssid_len);
-			n_probes++;
-			p++;
-		}
-		is_active = true;
-	} else
-		D_SCAN("Kicking off passive scan.\n");
-
-	/* 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.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
-	scan->tx_cmd.sta_id = il->hw_params.bcast_id;
-	scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
-
-	/* flags + rate selection */
-
-	switch (il->scan_band) {
-	case IEEE80211_BAND_2GHZ:
-		scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
-		scan->tx_cmd.rate = RATE_1M_PLCP;
-		band = IEEE80211_BAND_2GHZ;
-		break;
-	case IEEE80211_BAND_5GHZ:
-		scan->tx_cmd.rate = RATE_6M_PLCP;
-		band = IEEE80211_BAND_5GHZ;
-		break;
-	default:
-		IL_WARN("Invalid scan band\n");
-		return -EIO;
-	}
-
-	/*
-	 * If active scaning is requested but a certain channel is marked
-	 * passive, we can do active scanning if we detect transmissions. For
-	 * passive only scanning disable switching to active on any channel.
-	 */
-	scan->good_CRC_th =
-	    is_active ? IL_GOOD_CRC_TH_DEFAULT : IL_GOOD_CRC_TH_NEVER;
-
-	len =
-	    il_fill_probe_req(il, (struct ieee80211_mgmt *)scan->data,
-			      vif->addr, il->scan_request->ie,
-			      il->scan_request->ie_len,
-			      IL_MAX_SCAN_SIZE - sizeof(*scan));
-	scan->tx_cmd.len = cpu_to_le16(len);
-
-	/* select Rx antennas */
-	scan->flags |= il3945_get_antenna_flags(il);
-
-	scan->channel_count =
-	    il3945_get_channels_for_scan(il, band, is_active, n_probes,
-					 (void *)&scan->data[len], vif);
-	if (scan->channel_count == 0) {
-		D_SCAN("channel count %d\n", scan->channel_count);
-		return -EIO;
-	}
-
-	cmd.len +=
-	    le16_to_cpu(scan->tx_cmd.len) +
-	    scan->channel_count * sizeof(struct il3945_scan_channel);
-	cmd.data = scan;
-	scan->len = cpu_to_le16(cmd.len);
-
-	set_bit(S_SCAN_HW, &il->status);
-	ret = il_send_cmd_sync(il, &cmd);
-	if (ret)
-		clear_bit(S_SCAN_HW, &il->status);
-	return ret;
-}
-
-void
-il3945_post_scan(struct il_priv *il)
-{
-	/*
-	 * Since setting the RXON may have been deferred while
-	 * performing the scan, fire one off if needed
-	 */
-	if (memcmp(&il->staging, &il->active, sizeof(il->staging)))
-		il3945_commit_rxon(il);
-}
-
-static void
-il3945_bg_restart(struct work_struct *data)
-{
-	struct il_priv *il = container_of(data, struct il_priv, restart);
-
-	if (test_bit(S_EXIT_PENDING, &il->status))
-		return;
-
-	if (test_and_clear_bit(S_FW_ERROR, &il->status)) {
-		mutex_lock(&il->mutex);
-		il->is_open = 0;
-		mutex_unlock(&il->mutex);
-		il3945_down(il);
-		ieee80211_restart_hw(il->hw);
-	} else {
-		il3945_down(il);
-
-		mutex_lock(&il->mutex);
-		if (test_bit(S_EXIT_PENDING, &il->status)) {
-			mutex_unlock(&il->mutex);
-			return;
-		}
-
-		__il3945_up(il);
-		mutex_unlock(&il->mutex);
-	}
-}
-
-static void
-il3945_bg_rx_replenish(struct work_struct *data)
-{
-	struct il_priv *il = container_of(data, struct il_priv, rx_replenish);
-
-	mutex_lock(&il->mutex);
-	if (test_bit(S_EXIT_PENDING, &il->status))
-		goto out;
-
-	il3945_rx_replenish(il);
-out:
-	mutex_unlock(&il->mutex);
-}
-
-void
-il3945_post_associate(struct il_priv *il)
-{
-	int rc = 0;
-	struct ieee80211_conf *conf = NULL;
-
-	if (!il->vif || !il->is_open)
-		return;
-
-	D_ASSOC("Associated as %d to: %pM\n", il->vif->bss_conf.aid,
-		il->active.bssid_addr);
-
-	if (test_bit(S_EXIT_PENDING, &il->status))
-		return;
-
-	il_scan_cancel_timeout(il, 200);
-
-	conf = &il->hw->conf;
-
-	il->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
-	il3945_commit_rxon(il);
-
-	rc = il_send_rxon_timing(il);
-	if (rc)
-		IL_WARN("C_RXON_TIMING failed - " "Attempting to continue.\n");
-
-	il->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
-
-	il->staging.assoc_id = cpu_to_le16(il->vif->bss_conf.aid);
-
-	D_ASSOC("assoc id %d beacon interval %d\n", il->vif->bss_conf.aid,
-		il->vif->bss_conf.beacon_int);
-
-	if (il->vif->bss_conf.use_short_preamble)
-		il->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
-	else
-		il->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
-
-	if (il->staging.flags & RXON_FLG_BAND_24G_MSK) {
-		if (il->vif->bss_conf.use_short_slot)
-			il->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
-		else
-			il->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
-	}
-
-	il3945_commit_rxon(il);
-
-	switch (il->vif->type) {
-	case NL80211_IFTYPE_STATION:
-		il3945_rate_scale_init(il->hw, IL_AP_ID);
-		break;
-	case NL80211_IFTYPE_ADHOC:
-		il3945_send_beacon_cmd(il);
-		break;
-	default:
-		IL_ERR("%s Should not be called in %d mode\n", __func__,
-		      il->vif->type);
-		break;
-	}
-}
-
-/*****************************************************************************
- *
- * mac80211 entry point functions
- *
- *****************************************************************************/
-
-#define UCODE_READY_TIMEOUT	(2 * HZ)
-
-static int
-il3945_mac_start(struct ieee80211_hw *hw)
-{
-	struct il_priv *il = hw->priv;
-	int ret;
-
-	/* we should be verifying the device is ready to be opened */
-	mutex_lock(&il->mutex);
-	D_MAC80211("enter\n");
-
-	/* fetch ucode file from disk, alloc and copy to bus-master buffers ...
-	 * ucode filename and max sizes are card-specific. */
-
-	if (!il->ucode_code.len) {
-		ret = il3945_read_ucode(il);
-		if (ret) {
-			IL_ERR("Could not read microcode: %d\n", ret);
-			mutex_unlock(&il->mutex);
-			goto out_release_irq;
-		}
-	}
-
-	ret = __il3945_up(il);
-
-	mutex_unlock(&il->mutex);
-
-	if (ret)
-		goto out_release_irq;
-
-	D_INFO("Start UP work.\n");
-
-	/* Wait for START_ALIVE from ucode. Otherwise callbacks from
-	 * mac80211 will not be run successfully. */
-	ret = wait_event_timeout(il->wait_command_queue,
-				 test_bit(S_READY, &il->status),
-				 UCODE_READY_TIMEOUT);
-	if (!ret) {
-		if (!test_bit(S_READY, &il->status)) {
-			IL_ERR("Wait for START_ALIVE timeout after %dms.\n",
-			       jiffies_to_msecs(UCODE_READY_TIMEOUT));
-			ret = -ETIMEDOUT;
-			goto out_release_irq;
-		}
-	}
-
-	/* ucode is running and will send rfkill notifications,
-	 * no need to poll the killswitch state anymore */
-	cancel_delayed_work(&il->_3945.rfkill_poll);
-
-	il->is_open = 1;
-	D_MAC80211("leave\n");
-	return 0;
-
-out_release_irq:
-	il->is_open = 0;
-	D_MAC80211("leave - failed\n");
-	return ret;
-}
-
-static void
-il3945_mac_stop(struct ieee80211_hw *hw)
-{
-	struct il_priv *il = hw->priv;
-
-	D_MAC80211("enter\n");
-
-	if (!il->is_open) {
-		D_MAC80211("leave - skip\n");
-		return;
-	}
-
-	il->is_open = 0;
-
-	il3945_down(il);
-
-	flush_workqueue(il->workqueue);
-
-	/* start polling the killswitch state again */
-	queue_delayed_work(il->workqueue, &il->_3945.rfkill_poll,
-			   round_jiffies_relative(2 * HZ));
-
-	D_MAC80211("leave\n");
-}
-
-static void
-il3945_mac_tx(struct ieee80211_hw *hw,
-	       struct ieee80211_tx_control *control,
-	       struct sk_buff *skb)
-{
-	struct il_priv *il = hw->priv;
-
-	D_MAC80211("enter\n");
-
-	D_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
-	     ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
-
-	if (il3945_tx_skb(il, control->sta, skb))
-		dev_kfree_skb_any(skb);
-
-	D_MAC80211("leave\n");
-}
-
-void
-il3945_config_ap(struct il_priv *il)
-{
-	struct ieee80211_vif *vif = il->vif;
-	int rc = 0;
-
-	if (test_bit(S_EXIT_PENDING, &il->status))
-		return;
-
-	/* The following should be done only at AP bring up */
-	if (!(il_is_associated(il))) {
-
-		/* RXON - unassoc (to set timing command) */
-		il->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
-		il3945_commit_rxon(il);
-
-		/* RXON Timing */
-		rc = il_send_rxon_timing(il);
-		if (rc)
-			IL_WARN("C_RXON_TIMING failed - "
-				"Attempting to continue.\n");
-
-		il->staging.assoc_id = 0;
-
-		if (vif->bss_conf.use_short_preamble)
-			il->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
-		else
-			il->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
-
-		if (il->staging.flags & RXON_FLG_BAND_24G_MSK) {
-			if (vif->bss_conf.use_short_slot)
-				il->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
-			else
-				il->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
-		}
-		/* restore RXON assoc */
-		il->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
-		il3945_commit_rxon(il);
-	}
-	il3945_send_beacon_cmd(il);
-}
-
-static int
-il3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
-		   struct ieee80211_vif *vif, struct ieee80211_sta *sta,
-		   struct ieee80211_key_conf *key)
-{
-	struct il_priv *il = hw->priv;
-	int ret = 0;
-	u8 sta_id = IL_INVALID_STATION;
-	u8 static_key;
-
-	D_MAC80211("enter\n");
-
-	if (il3945_mod_params.sw_crypto) {
-		D_MAC80211("leave - hwcrypto disabled\n");
-		return -EOPNOTSUPP;
-	}
-
-	/*
-	 * To support IBSS RSN, don't program group keys in IBSS, the
-	 * hardware will then not attempt to decrypt the frames.
-	 */
-	if (vif->type == NL80211_IFTYPE_ADHOC &&
-	    !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
-		D_MAC80211("leave - IBSS RSN\n");
-		return -EOPNOTSUPP;
-	}
-
-	static_key = !il_is_associated(il);
-
-	if (!static_key) {
-		sta_id = il_sta_id_or_broadcast(il, sta);
-		if (sta_id == IL_INVALID_STATION) {
-			D_MAC80211("leave - station not found\n");
-			return -EINVAL;
-		}
-	}
-
-	mutex_lock(&il->mutex);
-	il_scan_cancel_timeout(il, 100);
-
-	switch (cmd) {
-	case SET_KEY:
-		if (static_key)
-			ret = il3945_set_static_key(il, key);
-		else
-			ret = il3945_set_dynamic_key(il, key, sta_id);
-		D_MAC80211("enable hwcrypto key\n");
-		break;
-	case DISABLE_KEY:
-		if (static_key)
-			ret = il3945_remove_static_key(il);
-		else
-			ret = il3945_clear_sta_key_info(il, sta_id);
-		D_MAC80211("disable hwcrypto key\n");
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-	D_MAC80211("leave ret %d\n", ret);
-	mutex_unlock(&il->mutex);
-
-	return ret;
-}
-
-static int
-il3945_mac_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		   struct ieee80211_sta *sta)
-{
-	struct il_priv *il = hw->priv;
-	struct il3945_sta_priv *sta_priv = (void *)sta->drv_priv;
-	int ret;
-	bool is_ap = vif->type == NL80211_IFTYPE_STATION;
-	u8 sta_id;
-
-	mutex_lock(&il->mutex);
-	D_INFO("station %pM\n", sta->addr);
-	sta_priv->common.sta_id = IL_INVALID_STATION;
-
-	ret = il_add_station_common(il, sta->addr, is_ap, sta, &sta_id);
-	if (ret) {
-		IL_ERR("Unable to add station %pM (%d)\n", sta->addr, ret);
-		/* Should we return success if return code is EEXIST ? */
-		mutex_unlock(&il->mutex);
-		return ret;
-	}
-
-	sta_priv->common.sta_id = sta_id;
-
-	/* Initialize rate scaling */
-	D_INFO("Initializing rate scaling for station %pM\n", sta->addr);
-	il3945_rs_rate_init(il, sta, sta_id);
-	mutex_unlock(&il->mutex);
-
-	return 0;
-}
-
-static void
-il3945_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
-			unsigned int *total_flags, u64 multicast)
-{
-	struct il_priv *il = hw->priv;
-	__le32 filter_or = 0, filter_nand = 0;
-
-#define CHK(test, flag)	do { \
-	if (*total_flags & (test))		\
-		filter_or |= (flag);		\
-	else					\
-		filter_nand |= (flag);		\
-	} while (0)
-
-	D_MAC80211("Enter: changed: 0x%x, total: 0x%x\n", changed_flags,
-		   *total_flags);
-
-	CHK(FIF_OTHER_BSS, RXON_FILTER_PROMISC_MSK);
-	CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK);
-	CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
-
-#undef CHK
-
-	mutex_lock(&il->mutex);
-
-	il->staging.filter_flags &= ~filter_nand;
-	il->staging.filter_flags |= filter_or;
-
-	/*
-	 * Not committing directly because hardware can perform a scan,
-	 * but even if hw is ready, committing here breaks for some reason,
-	 * we'll eventually commit the filter flags change anyway.
-	 */
-
-	mutex_unlock(&il->mutex);
-
-	/*
-	 * Receiving all multicast frames is always enabled by the
-	 * default flags setup in il_connection_init_rx_config()
-	 * since we currently do not support programming multicast
-	 * filters into the device.
-	 */
-	*total_flags &=
-	    FIF_OTHER_BSS | FIF_ALLMULTI |
-	    FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
-}
-
-/*****************************************************************************
- *
- * sysfs attributes
- *
- *****************************************************************************/
-
-#ifdef CONFIG_IWLEGACY_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.
- *
- * The debug_level being managed using sysfs below is a per device debug
- * level that is used instead of the global debug level if it (the per
- * device debug level) is set.
- */
-static ssize_t
-il3945_show_debug_level(struct device *d, struct device_attribute *attr,
-			char *buf)
-{
-	struct il_priv *il = dev_get_drvdata(d);
-	return sprintf(buf, "0x%08X\n", il_get_debug_level(il));
-}
-
-static ssize_t
-il3945_store_debug_level(struct device *d, struct device_attribute *attr,
-			 const char *buf, size_t count)
-{
-	struct il_priv *il = dev_get_drvdata(d);
-	unsigned long val;
-	int ret;
-
-	ret = kstrtoul(buf, 0, &val);
-	if (ret)
-		IL_INFO("%s is not in hex or decimal form.\n", buf);
-	else
-		il->debug_level = val;
-
-	return strnlen(buf, count);
-}
-
-static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, il3945_show_debug_level,
-		   il3945_store_debug_level);
-
-#endif /* CONFIG_IWLEGACY_DEBUG */
-
-static ssize_t
-il3945_show_temperature(struct device *d, struct device_attribute *attr,
-			char *buf)
-{
-	struct il_priv *il = dev_get_drvdata(d);
-
-	if (!il_is_alive(il))
-		return -EAGAIN;
-
-	return sprintf(buf, "%d\n", il3945_hw_get_temperature(il));
-}
-
-static DEVICE_ATTR(temperature, S_IRUGO, il3945_show_temperature, NULL);
-
-static ssize_t
-il3945_show_tx_power(struct device *d, struct device_attribute *attr, char *buf)
-{
-	struct il_priv *il = dev_get_drvdata(d);
-	return sprintf(buf, "%d\n", il->tx_power_user_lmt);
-}
-
-static ssize_t
-il3945_store_tx_power(struct device *d, struct device_attribute *attr,
-		      const char *buf, size_t count)
-{
-	struct il_priv *il = dev_get_drvdata(d);
-	char *p = (char *)buf;
-	u32 val;
-
-	val = simple_strtoul(p, &p, 10);
-	if (p == buf)
-		IL_INFO(": %s is not in decimal form.\n", buf);
-	else
-		il3945_hw_reg_set_txpower(il, val);
-
-	return count;
-}
-
-static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, il3945_show_tx_power,
-		   il3945_store_tx_power);
-
-static ssize_t
-il3945_show_flags(struct device *d, struct device_attribute *attr, char *buf)
-{
-	struct il_priv *il = dev_get_drvdata(d);
-
-	return sprintf(buf, "0x%04X\n", il->active.flags);
-}
-
-static ssize_t
-il3945_store_flags(struct device *d, struct device_attribute *attr,
-		   const char *buf, size_t count)
-{
-	struct il_priv *il = dev_get_drvdata(d);
-	u32 flags = simple_strtoul(buf, NULL, 0);
-
-	mutex_lock(&il->mutex);
-	if (le32_to_cpu(il->staging.flags) != flags) {
-		/* Cancel any currently running scans... */
-		if (il_scan_cancel_timeout(il, 100))
-			IL_WARN("Could not cancel scan.\n");
-		else {
-			D_INFO("Committing rxon.flags = 0x%04X\n", flags);
-			il->staging.flags = cpu_to_le32(flags);
-			il3945_commit_rxon(il);
-		}
-	}
-	mutex_unlock(&il->mutex);
-
-	return count;
-}
-
-static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, il3945_show_flags,
-		   il3945_store_flags);
-
-static ssize_t
-il3945_show_filter_flags(struct device *d, struct device_attribute *attr,
-			 char *buf)
-{
-	struct il_priv *il = dev_get_drvdata(d);
-
-	return sprintf(buf, "0x%04X\n", le32_to_cpu(il->active.filter_flags));
-}
-
-static ssize_t
-il3945_store_filter_flags(struct device *d, struct device_attribute *attr,
-			  const char *buf, size_t count)
-{
-	struct il_priv *il = dev_get_drvdata(d);
-	u32 filter_flags = simple_strtoul(buf, NULL, 0);
-
-	mutex_lock(&il->mutex);
-	if (le32_to_cpu(il->staging.filter_flags) != filter_flags) {
-		/* Cancel any currently running scans... */
-		if (il_scan_cancel_timeout(il, 100))
-			IL_WARN("Could not cancel scan.\n");
-		else {
-			D_INFO("Committing rxon.filter_flags = " "0x%04X\n",
-			       filter_flags);
-			il->staging.filter_flags = cpu_to_le32(filter_flags);
-			il3945_commit_rxon(il);
-		}
-	}
-	mutex_unlock(&il->mutex);
-
-	return count;
-}
-
-static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, il3945_show_filter_flags,
-		   il3945_store_filter_flags);
-
-static ssize_t
-il3945_show_measurement(struct device *d, struct device_attribute *attr,
-			char *buf)
-{
-	struct il_priv *il = dev_get_drvdata(d);
-	struct il_spectrum_notification measure_report;
-	u32 size = sizeof(measure_report), len = 0, ofs = 0;
-	u8 *data = (u8 *) &measure_report;
-	unsigned long flags;
-
-	spin_lock_irqsave(&il->lock, flags);
-	if (!(il->measurement_status & MEASUREMENT_READY)) {
-		spin_unlock_irqrestore(&il->lock, flags);
-		return 0;
-	}
-	memcpy(&measure_report, &il->measure_report, size);
-	il->measurement_status = 0;
-	spin_unlock_irqrestore(&il->lock, flags);
-
-	while (size && PAGE_SIZE - len) {
-		hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
-				   PAGE_SIZE - len, true);
-		len = strlen(buf);
-		if (PAGE_SIZE - len)
-			buf[len++] = '\n';
-
-		ofs += 16;
-		size -= min(size, 16U);
-	}
-
-	return len;
-}
-
-static ssize_t
-il3945_store_measurement(struct device *d, struct device_attribute *attr,
-			 const char *buf, size_t count)
-{
-	struct il_priv *il = dev_get_drvdata(d);
-	struct ieee80211_measurement_params params = {
-		.channel = le16_to_cpu(il->active.channel),
-		.start_time = cpu_to_le64(il->_3945.last_tsf),
-		.duration = cpu_to_le16(1),
-	};
-	u8 type = IL_MEASURE_BASIC;
-	u8 buffer[32];
-	u8 channel;
-
-	if (count) {
-		char *p = buffer;
-		strlcpy(buffer, buf, sizeof(buffer));
-		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);
-	}
-
-	D_INFO("Invoking measurement of type %d on " "channel %d (for '%s')\n",
-	       type, params.channel, buf);
-	il3945_get_measurement(il, &params, type);
-
-	return count;
-}
-
-static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, il3945_show_measurement,
-		   il3945_store_measurement);
-
-static ssize_t
-il3945_store_retry_rate(struct device *d, struct device_attribute *attr,
-			const char *buf, size_t count)
-{
-	struct il_priv *il = dev_get_drvdata(d);
-
-	il->retry_rate = simple_strtoul(buf, NULL, 0);
-	if (il->retry_rate <= 0)
-		il->retry_rate = 1;
-
-	return count;
-}
-
-static ssize_t
-il3945_show_retry_rate(struct device *d, struct device_attribute *attr,
-		       char *buf)
-{
-	struct il_priv *il = dev_get_drvdata(d);
-	return sprintf(buf, "%d", il->retry_rate);
-}
-
-static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, il3945_show_retry_rate,
-		   il3945_store_retry_rate);
-
-static ssize_t
-il3945_show_channels(struct device *d, struct device_attribute *attr, char *buf)
-{
-	/* all this shit doesn't belong into sysfs anyway */
-	return 0;
-}
-
-static DEVICE_ATTR(channels, S_IRUSR, il3945_show_channels, NULL);
-
-static ssize_t
-il3945_show_antenna(struct device *d, struct device_attribute *attr, char *buf)
-{
-	struct il_priv *il = dev_get_drvdata(d);
-
-	if (!il_is_alive(il))
-		return -EAGAIN;
-
-	return sprintf(buf, "%d\n", il3945_mod_params.antenna);
-}
-
-static ssize_t
-il3945_store_antenna(struct device *d, struct device_attribute *attr,
-		     const char *buf, size_t count)
-{
-	struct il_priv *il __maybe_unused = dev_get_drvdata(d);
-	int ant;
-
-	if (count == 0)
-		return 0;
-
-	if (sscanf(buf, "%1i", &ant) != 1) {
-		D_INFO("not in hex or decimal form.\n");
-		return count;
-	}
-
-	if (ant >= 0 && ant <= 2) {
-		D_INFO("Setting antenna select to %d.\n", ant);
-		il3945_mod_params.antenna = (enum il3945_antenna)ant;
-	} else
-		D_INFO("Bad antenna select value %d.\n", ant);
-
-	return count;
-}
-
-static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, il3945_show_antenna,
-		   il3945_store_antenna);
-
-static ssize_t
-il3945_show_status(struct device *d, struct device_attribute *attr, char *buf)
-{
-	struct il_priv *il = dev_get_drvdata(d);
-	if (!il_is_alive(il))
-		return -EAGAIN;
-	return sprintf(buf, "0x%08x\n", (int)il->status);
-}
-
-static DEVICE_ATTR(status, S_IRUGO, il3945_show_status, NULL);
-
-static ssize_t
-il3945_dump_error_log(struct device *d, struct device_attribute *attr,
-		      const char *buf, size_t count)
-{
-	struct il_priv *il = dev_get_drvdata(d);
-	char *p = (char *)buf;
-
-	if (p[0] == '1')
-		il3945_dump_nic_error_log(il);
-
-	return strnlen(buf, count);
-}
-
-static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, il3945_dump_error_log);
-
-/*****************************************************************************
- *
- * driver setup and tear down
- *
- *****************************************************************************/
-
-static void
-il3945_setup_deferred_work(struct il_priv *il)
-{
-	il->workqueue = create_singlethread_workqueue(DRV_NAME);
-
-	init_waitqueue_head(&il->wait_command_queue);
-
-	INIT_WORK(&il->restart, il3945_bg_restart);
-	INIT_WORK(&il->rx_replenish, il3945_bg_rx_replenish);
-	INIT_DELAYED_WORK(&il->init_alive_start, il3945_bg_init_alive_start);
-	INIT_DELAYED_WORK(&il->alive_start, il3945_bg_alive_start);
-	INIT_DELAYED_WORK(&il->_3945.rfkill_poll, il3945_rfkill_poll);
-
-	il_setup_scan_deferred_work(il);
-
-	il3945_hw_setup_deferred_work(il);
-
-	setup_timer(&il->watchdog, il_bg_watchdog, (unsigned long)il);
-
-	tasklet_init(&il->irq_tasklet,
-		     (void (*)(unsigned long))il3945_irq_tasklet,
-		     (unsigned long)il);
-}
-
-static void
-il3945_cancel_deferred_work(struct il_priv *il)
-{
-	il3945_hw_cancel_deferred_work(il);
-
-	cancel_delayed_work_sync(&il->init_alive_start);
-	cancel_delayed_work(&il->alive_start);
-
-	il_cancel_scan_deferred_work(il);
-}
-
-static struct attribute *il3945_sysfs_entries[] = {
-	&dev_attr_antenna.attr,
-	&dev_attr_channels.attr,
-	&dev_attr_dump_errors.attr,
-	&dev_attr_flags.attr,
-	&dev_attr_filter_flags.attr,
-	&dev_attr_measurement.attr,
-	&dev_attr_retry_rate.attr,
-	&dev_attr_status.attr,
-	&dev_attr_temperature.attr,
-	&dev_attr_tx_power.attr,
-#ifdef CONFIG_IWLEGACY_DEBUG
-	&dev_attr_debug_level.attr,
-#endif
-	NULL
-};
-
-static struct attribute_group il3945_attribute_group = {
-	.name = NULL,		/* put in device directory */
-	.attrs = il3945_sysfs_entries,
-};
-
-static struct ieee80211_ops il3945_mac_ops __read_mostly = {
-	.tx = il3945_mac_tx,
-	.start = il3945_mac_start,
-	.stop = il3945_mac_stop,
-	.add_interface = il_mac_add_interface,
-	.remove_interface = il_mac_remove_interface,
-	.change_interface = il_mac_change_interface,
-	.config = il_mac_config,
-	.configure_filter = il3945_configure_filter,
-	.set_key = il3945_mac_set_key,
-	.conf_tx = il_mac_conf_tx,
-	.reset_tsf = il_mac_reset_tsf,
-	.bss_info_changed = il_mac_bss_info_changed,
-	.hw_scan = il_mac_hw_scan,
-	.sta_add = il3945_mac_sta_add,
-	.sta_remove = il_mac_sta_remove,
-	.tx_last_beacon = il_mac_tx_last_beacon,
-	.flush = il_mac_flush,
-};
-
-static int
-il3945_init_drv(struct il_priv *il)
-{
-	int ret;
-	struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
-
-	il->retry_rate = 1;
-	il->beacon_skb = NULL;
-
-	spin_lock_init(&il->sta_lock);
-	spin_lock_init(&il->hcmd_lock);
-
-	INIT_LIST_HEAD(&il->free_frames);
-
-	mutex_init(&il->mutex);
-
-	il->ieee_channels = NULL;
-	il->ieee_rates = NULL;
-	il->band = IEEE80211_BAND_2GHZ;
-
-	il->iw_mode = NL80211_IFTYPE_STATION;
-	il->missed_beacon_threshold = IL_MISSED_BEACON_THRESHOLD_DEF;
-
-	/* initialize force reset */
-	il->force_reset.reset_duration = IL_DELAY_NEXT_FORCE_FW_RELOAD;
-
-	if (eeprom->version < EEPROM_3945_EEPROM_VERSION) {
-		IL_WARN("Unsupported EEPROM version: 0x%04X\n",
-			eeprom->version);
-		ret = -EINVAL;
-		goto err;
-	}
-	ret = il_init_channel_map(il);
-	if (ret) {
-		IL_ERR("initializing regulatory failed: %d\n", ret);
-		goto err;
-	}
-
-	/* Set up txpower settings in driver for all channels */
-	if (il3945_txpower_set_from_eeprom(il)) {
-		ret = -EIO;
-		goto err_free_channel_map;
-	}
-
-	ret = il_init_geos(il);
-	if (ret) {
-		IL_ERR("initializing geos failed: %d\n", ret);
-		goto err_free_channel_map;
-	}
-	il3945_init_hw_rates(il, il->ieee_rates);
-
-	return 0;
-
-err_free_channel_map:
-	il_free_channel_map(il);
-err:
-	return ret;
-}
-
-#define IL3945_MAX_PROBE_REQUEST	200
-
-static int
-il3945_setup_mac(struct il_priv *il)
-{
-	int ret;
-	struct ieee80211_hw *hw = il->hw;
-
-	hw->rate_control_algorithm = "iwl-3945-rs";
-	hw->sta_data_size = sizeof(struct il3945_sta_priv);
-	hw->vif_data_size = sizeof(struct il_vif_priv);
-
-	/* Tell mac80211 our characteristics */
-	ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
-	ieee80211_hw_set(hw, SUPPORTS_PS);
-	ieee80211_hw_set(hw, SIGNAL_DBM);
-	ieee80211_hw_set(hw, SPECTRUM_MGMT);
-
-	hw->wiphy->interface_modes =
-	    BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC);
-
-	hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
-	hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
-				       REGULATORY_DISABLE_BEACON_HINTS;
-
-	hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
-
-	hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX_3945;
-	/* we create the 802.11 header and a zero-length SSID element */
-	hw->wiphy->max_scan_ie_len = IL3945_MAX_PROBE_REQUEST - 24 - 2;
-
-	/* Default value; 4 EDCA QOS priorities */
-	hw->queues = 4;
-
-	if (il->bands[IEEE80211_BAND_2GHZ].n_channels)
-		il->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
-		    &il->bands[IEEE80211_BAND_2GHZ];
-
-	if (il->bands[IEEE80211_BAND_5GHZ].n_channels)
-		il->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
-		    &il->bands[IEEE80211_BAND_5GHZ];
-
-	il_leds_init(il);
-
-	ret = ieee80211_register_hw(il->hw);
-	if (ret) {
-		IL_ERR("Failed to register hw (error %d)\n", ret);
-		return ret;
-	}
-	il->mac80211_registered = 1;
-
-	return 0;
-}
-
-static int
-il3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
-	int err = 0;
-	struct il_priv *il;
-	struct ieee80211_hw *hw;
-	struct il_cfg *cfg = (struct il_cfg *)(ent->driver_data);
-	struct il3945_eeprom *eeprom;
-	unsigned long flags;
-
-	/***********************
-	 * 1. Allocating HW data
-	 * ********************/
-
-	hw = ieee80211_alloc_hw(sizeof(struct il_priv), &il3945_mac_ops);
-	if (!hw) {
-		err = -ENOMEM;
-		goto out;
-	}
-	il = hw->priv;
-	il->hw = hw;
-	SET_IEEE80211_DEV(hw, &pdev->dev);
-
-	il->cmd_queue = IL39_CMD_QUEUE_NUM;
-
-	/*
-	 * Disabling hardware scan means that mac80211 will perform scans
-	 * "the hard way", rather than using device's scan.
-	 */
-	if (il3945_mod_params.disable_hw_scan) {
-		D_INFO("Disabling hw_scan\n");
-		il3945_mac_ops.hw_scan = NULL;
-	}
-
-	D_INFO("*** LOAD DRIVER ***\n");
-	il->cfg = cfg;
-	il->ops = &il3945_ops;
-#ifdef CONFIG_IWLEGACY_DEBUGFS
-	il->debugfs_ops = &il3945_debugfs_ops;
-#endif
-	il->pci_dev = pdev;
-	il->inta_mask = CSR_INI_SET_MASK;
-
-	/***************************
-	 * 2. Initializing PCI bus
-	 * *************************/
-	pci_disable_link_state(pdev,
-			       PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
-			       PCIE_LINK_STATE_CLKPM);
-
-	if (pci_enable_device(pdev)) {
-		err = -ENODEV;
-		goto out_ieee80211_free_hw;
-	}
-
-	pci_set_master(pdev);
-
-	err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
-	if (!err)
-		err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
-	if (err) {
-		IL_WARN("No suitable DMA available.\n");
-		goto out_pci_disable_device;
-	}
-
-	pci_set_drvdata(pdev, il);
-	err = pci_request_regions(pdev, DRV_NAME);
-	if (err)
-		goto out_pci_disable_device;
-
-	/***********************
-	 * 3. Read REV Register
-	 * ********************/
-	il->hw_base = pci_ioremap_bar(pdev, 0);
-	if (!il->hw_base) {
-		err = -ENODEV;
-		goto out_pci_release_regions;
-	}
-
-	D_INFO("pci_resource_len = 0x%08llx\n",
-	       (unsigned long long)pci_resource_len(pdev, 0));
-	D_INFO("pci_resource_base = %p\n", il->hw_base);
-
-	/* 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);
-
-	/* these spin locks will be used in apm_init and EEPROM access
-	 * we should init now
-	 */
-	spin_lock_init(&il->reg_lock);
-	spin_lock_init(&il->lock);
-
-	/*
-	 * stop and reset the on-board processor just in case it is in a
-	 * strange state ... like being left stranded by a primary kernel
-	 * and this is now the kdump kernel trying to start up
-	 */
-	_il_wr(il, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
-
-	/***********************
-	 * 4. Read EEPROM
-	 * ********************/
-
-	/* Read the EEPROM */
-	err = il_eeprom_init(il);
-	if (err) {
-		IL_ERR("Unable to init EEPROM\n");
-		goto out_iounmap;
-	}
-	/* MAC Address location in EEPROM same for 3945/4965 */
-	eeprom = (struct il3945_eeprom *)il->eeprom;
-	D_INFO("MAC address: %pM\n", eeprom->mac_address);
-	SET_IEEE80211_PERM_ADDR(il->hw, eeprom->mac_address);
-
-	/***********************
-	 * 5. Setup HW Constants
-	 * ********************/
-	/* Device-specific setup */
-	err = il3945_hw_set_hw_params(il);
-	if (err) {
-		IL_ERR("failed to set hw settings\n");
-		goto out_eeprom_free;
-	}
-
-	/***********************
-	 * 6. Setup il
-	 * ********************/
-
-	err = il3945_init_drv(il);
-	if (err) {
-		IL_ERR("initializing driver failed\n");
-		goto out_unset_hw_params;
-	}
-
-	IL_INFO("Detected Intel Wireless WiFi Link %s\n", il->cfg->name);
-
-	/***********************
-	 * 7. Setup Services
-	 * ********************/
-
-	spin_lock_irqsave(&il->lock, flags);
-	il_disable_interrupts(il);
-	spin_unlock_irqrestore(&il->lock, flags);
-
-	pci_enable_msi(il->pci_dev);
-
-	err = request_irq(il->pci_dev->irq, il_isr, IRQF_SHARED, DRV_NAME, il);
-	if (err) {
-		IL_ERR("Error allocating IRQ %d\n", il->pci_dev->irq);
-		goto out_disable_msi;
-	}
-
-	err = sysfs_create_group(&pdev->dev.kobj, &il3945_attribute_group);
-	if (err) {
-		IL_ERR("failed to create sysfs device attributes\n");
-		goto out_release_irq;
-	}
-
-	il_set_rxon_channel(il, &il->bands[IEEE80211_BAND_2GHZ].channels[5]);
-	il3945_setup_deferred_work(il);
-	il3945_setup_handlers(il);
-	il_power_initialize(il);
-
-	/*********************************
-	 * 8. Setup and Register mac80211
-	 * *******************************/
-
-	il_enable_interrupts(il);
-
-	err = il3945_setup_mac(il);
-	if (err)
-		goto out_remove_sysfs;
-
-	err = il_dbgfs_register(il, DRV_NAME);
-	if (err)
-		IL_ERR("failed to create debugfs files. Ignoring error: %d\n",
-		       err);
-
-	/* Start monitoring the killswitch */
-	queue_delayed_work(il->workqueue, &il->_3945.rfkill_poll, 2 * HZ);
-
-	return 0;
-
-out_remove_sysfs:
-	destroy_workqueue(il->workqueue);
-	il->workqueue = NULL;
-	sysfs_remove_group(&pdev->dev.kobj, &il3945_attribute_group);
-out_release_irq:
-	free_irq(il->pci_dev->irq, il);
-out_disable_msi:
-	pci_disable_msi(il->pci_dev);
-	il_free_geos(il);
-	il_free_channel_map(il);
-out_unset_hw_params:
-	il3945_unset_hw_params(il);
-out_eeprom_free:
-	il_eeprom_free(il);
-out_iounmap:
-	iounmap(il->hw_base);
-out_pci_release_regions:
-	pci_release_regions(pdev);
-out_pci_disable_device:
-	pci_disable_device(pdev);
-out_ieee80211_free_hw:
-	ieee80211_free_hw(il->hw);
-out:
-	return err;
-}
-
-static void
-il3945_pci_remove(struct pci_dev *pdev)
-{
-	struct il_priv *il = pci_get_drvdata(pdev);
-	unsigned long flags;
-
-	if (!il)
-		return;
-
-	D_INFO("*** UNLOAD DRIVER ***\n");
-
-	il_dbgfs_unregister(il);
-
-	set_bit(S_EXIT_PENDING, &il->status);
-
-	il_leds_exit(il);
-
-	if (il->mac80211_registered) {
-		ieee80211_unregister_hw(il->hw);
-		il->mac80211_registered = 0;
-	} else {
-		il3945_down(il);
-	}
-
-	/*
-	 * Make sure device is reset to low power before unloading driver.
-	 * This may be redundant with il_down(), but there are paths to
-	 * run il_down() without calling apm_ops.stop(), and there are
-	 * paths to avoid running il_down() at all before leaving driver.
-	 * This (inexpensive) call *makes sure* device is reset.
-	 */
-	il_apm_stop(il);
-
-	/* make sure we flush any pending irq or
-	 * tasklet for the driver
-	 */
-	spin_lock_irqsave(&il->lock, flags);
-	il_disable_interrupts(il);
-	spin_unlock_irqrestore(&il->lock, flags);
-
-	il3945_synchronize_irq(il);
-
-	sysfs_remove_group(&pdev->dev.kobj, &il3945_attribute_group);
-
-	cancel_delayed_work_sync(&il->_3945.rfkill_poll);
-
-	il3945_dealloc_ucode_pci(il);
-
-	if (il->rxq.bd)
-		il3945_rx_queue_free(il, &il->rxq);
-	il3945_hw_txq_ctx_free(il);
-
-	il3945_unset_hw_params(il);
-
-	/*netif_stop_queue(dev); */
-	flush_workqueue(il->workqueue);
-
-	/* ieee80211_unregister_hw calls il3945_mac_stop, which flushes
-	 * il->workqueue... so we can't take down the workqueue
-	 * until now... */
-	destroy_workqueue(il->workqueue);
-	il->workqueue = NULL;
-
-	free_irq(pdev->irq, il);
-	pci_disable_msi(pdev);
-
-	iounmap(il->hw_base);
-	pci_release_regions(pdev);
-	pci_disable_device(pdev);
-
-	il_free_channel_map(il);
-	il_free_geos(il);
-	kfree(il->scan_cmd);
-	if (il->beacon_skb)
-		dev_kfree_skb(il->beacon_skb);
-
-	ieee80211_free_hw(il->hw);
-}
-
-/*****************************************************************************
- *
- * driver and module entry point
- *
- *****************************************************************************/
-
-static struct pci_driver il3945_driver = {
-	.name = DRV_NAME,
-	.id_table = il3945_hw_card_ids,
-	.probe = il3945_pci_probe,
-	.remove = il3945_pci_remove,
-	.driver.pm = IL_LEGACY_PM_OPS,
-};
-
-static int __init
-il3945_init(void)
-{
-
-	int ret;
-	pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
-	pr_info(DRV_COPYRIGHT "\n");
-
-	ret = il3945_rate_control_register();
-	if (ret) {
-		pr_err("Unable to register rate control algorithm: %d\n", ret);
-		return ret;
-	}
-
-	ret = pci_register_driver(&il3945_driver);
-	if (ret) {
-		pr_err("Unable to initialize PCI module\n");
-		goto error_register;
-	}
-
-	return ret;
-
-error_register:
-	il3945_rate_control_unregister();
-	return ret;
-}
-
-static void __exit
-il3945_exit(void)
-{
-	pci_unregister_driver(&il3945_driver);
-	il3945_rate_control_unregister();
-}
-
-/*(DEBLOBBED)*/
-
-module_param_named(antenna, il3945_mod_params.antenna, int, S_IRUGO);
-MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])");
-module_param_named(swcrypto, il3945_mod_params.sw_crypto, int, S_IRUGO);
-MODULE_PARM_DESC(swcrypto, "using software crypto (default 1 [software])");
-module_param_named(disable_hw_scan, il3945_mod_params.disable_hw_scan, int,
-		   S_IRUGO);
-MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 1)");
-#ifdef CONFIG_IWLEGACY_DEBUG
-module_param_named(debug, il_debug_level, uint, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "debug output mask");
-#endif
-module_param_named(fw_restart, il3945_mod_params.restart_fw, int, S_IRUGO);
-MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
-
-module_exit(il3945_exit);
-module_init(il3945_init);