net: wireless: add brcm80211 drivers

Add the brcm80211 tree to drivers/net/wireless, and disable the version that's
in drivers/staging.  This version includes the sources currently in staging,
plus any changes that have been sent out for review.

Sources in staging will be deleted in a followup patch.

Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 1354 insertions, 0 deletions

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
new file mode 100644
index 000000000000..99ba5e3e45fa
--- /dev/null
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
@@ -0,0 +1,1354 @@
+/*
+ * Copyright (c) 2010 Broadcom Corporation
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/kthread.h>
+#include <linux/slab.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/mmc/sdio_func.h>
+#include <linux/random.h>
+#include <linux/spinlock.h>
+#include <linux/ethtool.h>
+#include <linux/fcntl.h>
+#include <linux/fs.h>
+#include <linux/uaccess.h>
+#include <linux/hardirq.h>
+#include <linux/mutex.h>
+#include <linux/wait.h>
+#include <net/cfg80211.h>
+#include <net/rtnetlink.h>
+#include <defs.h>
+#include <brcmu_utils.h>
+#include <brcmu_wifi.h>
+
+#include "dhd.h"
+#include "dhd_bus.h"
+#include "dhd_proto.h"
+#include "dhd_dbg.h"
+#include "wl_cfg80211.h"
+#include "bcmchip.h"
+
+MODULE_AUTHOR("Broadcom Corporation");
+MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN fullmac driver.");
+MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN fullmac cards");
+MODULE_LICENSE("Dual BSD/GPL");
+
+
+/* Interface control information */
+struct brcmf_if {
+	struct brcmf_info *info;	/* back pointer to brcmf_info */
+	/* OS/stack specifics */
+	struct net_device *ndev;
+	struct net_device_stats stats;
+	int idx;		/* iface idx in dongle */
+	int state;		/* interface state */
+	u8 mac_addr[ETH_ALEN];	/* assigned MAC address */
+};
+
+/* Local private structure (extension of pub) */
+struct brcmf_info {
+	struct brcmf_pub pub;
+
+	/* OS/stack specifics */
+	struct brcmf_if *iflist[BRCMF_MAX_IFS];
+
+	struct mutex proto_block;
+
+	struct work_struct setmacaddr_work;
+	struct work_struct multicast_work;
+	u8 macvalue[ETH_ALEN];
+	atomic_t pend_8021x_cnt;
+};
+
+/* Error bits */
+module_param(brcmf_msg_level, int, 0);
+
+
+static int brcmf_net2idx(struct brcmf_info *drvr_priv, struct net_device *ndev)
+{
+	int i = 0;
+
+	while (i < BRCMF_MAX_IFS) {
+		if (drvr_priv->iflist[i] && drvr_priv->iflist[i]->ndev == ndev)
+			return i;
+		i++;
+	}
+
+	return BRCMF_BAD_IF;
+}
+
+int brcmf_ifname2idx(struct brcmf_info *drvr_priv, char *name)
+{
+	int i = BRCMF_MAX_IFS;
+	struct brcmf_if *ifp;
+
+	if (name == NULL || *name == '\0')
+		return 0;
+
+	while (--i > 0) {
+		ifp = drvr_priv->iflist[i];
+		if (ifp && !strncmp(ifp->ndev->name, name, IFNAMSIZ))
+			break;
+	}
+
+	brcmf_dbg(TRACE, "return idx %d for \"%s\"\n", i, name);
+
+	return i;		/* default - the primary interface */
+}
+
+char *brcmf_ifname(struct brcmf_pub *drvr, int ifidx)
+{
+	struct brcmf_info *drvr_priv = drvr->info;
+
+	if (ifidx < 0 || ifidx >= BRCMF_MAX_IFS) {
+		brcmf_dbg(ERROR, "ifidx %d out of range\n", ifidx);
+		return "<if_bad>";
+	}
+
+	if (drvr_priv->iflist[ifidx] == NULL) {
+		brcmf_dbg(ERROR, "null i/f %d\n", ifidx);
+		return "<if_null>";
+	}
+
+	if (drvr_priv->iflist[ifidx]->ndev)
+		return drvr_priv->iflist[ifidx]->ndev->name;
+
+	return "<if_none>";
+}
+
+static void _brcmf_set_multicast_list(struct work_struct *work)
+{
+	struct net_device *ndev;
+	struct netdev_hw_addr *ha;
+	u32 allmulti, cnt;
+	__le32 cnt_le;
+	__le32 allmulti_le;
+
+	struct brcmf_dcmd dcmd;
+	char *buf, *bufp;
+	uint buflen;
+	int ret;
+
+	struct brcmf_info *drvr_priv = container_of(work, struct brcmf_info,
+						    multicast_work);
+
+	ndev = drvr_priv->iflist[0]->ndev;
+	cnt = netdev_mc_count(ndev);
+
+	/* Determine initial value of allmulti flag */
+	allmulti = (ndev->flags & IFF_ALLMULTI) ? true : false;
+
+	/* Send down the multicast list first. */
+
+	buflen = sizeof("mcast_list") + sizeof(cnt) + (cnt * ETH_ALEN);
+	bufp = buf = kmalloc(buflen, GFP_ATOMIC);
+	if (!bufp)
+		return;
+
+	strcpy(bufp, "mcast_list");
+	bufp += strlen("mcast_list") + 1;
+
+	cnt_le = cpu_to_le32(cnt);
+	memcpy(bufp, &cnt_le, sizeof(cnt));
+	bufp += sizeof(cnt_le);
+
+	netdev_for_each_mc_addr(ha, ndev) {
+		if (!cnt)
+			break;
+		memcpy(bufp, ha->addr, ETH_ALEN);
+		bufp += ETH_ALEN;
+		cnt--;
+	}
+
+	memset(&dcmd, 0, sizeof(dcmd));
+	dcmd.cmd = BRCMF_C_SET_VAR;
+	dcmd.buf = buf;
+	dcmd.len = buflen;
+	dcmd.set = true;
+
+	ret = brcmf_proto_dcmd(&drvr_priv->pub, 0, &dcmd, dcmd.len);
+	if (ret < 0) {
+		brcmf_dbg(ERROR, "%s: set mcast_list failed, cnt %d\n",
+			  brcmf_ifname(&drvr_priv->pub, 0), cnt);
+		allmulti = cnt ? true : allmulti;
+	}
+
+	kfree(buf);
+
+	/* Now send the allmulti setting.  This is based on the setting in the
+	 * net_device flags, but might be modified above to be turned on if we
+	 * were trying to set some addresses and dongle rejected it...
+	 */
+
+	buflen = sizeof("allmulti") + sizeof(allmulti);
+	buf = kmalloc(buflen, GFP_ATOMIC);
+	if (!buf)
+		return;
+
+	allmulti_le = cpu_to_le32(allmulti);
+
+	if (!brcmu_mkiovar
+	    ("allmulti", (void *)&allmulti_le,
+	    sizeof(allmulti_le), buf, buflen)) {
+		brcmf_dbg(ERROR, "%s: mkiovar failed for allmulti, datalen %d buflen %u\n",
+			  brcmf_ifname(&drvr_priv->pub, 0),
+			  (int)sizeof(allmulti), buflen);
+		kfree(buf);
+		return;
+	}
+
+	memset(&dcmd, 0, sizeof(dcmd));
+	dcmd.cmd = BRCMF_C_SET_VAR;
+	dcmd.buf = buf;
+	dcmd.len = buflen;
+	dcmd.set = true;
+
+	ret = brcmf_proto_dcmd(&drvr_priv->pub, 0, &dcmd, dcmd.len);
+	if (ret < 0) {
+		brcmf_dbg(ERROR, "%s: set allmulti %d failed\n",
+			  brcmf_ifname(&drvr_priv->pub, 0),
+			  le32_to_cpu(allmulti_le));
+	}
+
+	kfree(buf);
+
+	/* Finally, pick up the PROMISC flag as well, like the NIC
+		 driver does */
+
+	allmulti = (ndev->flags & IFF_PROMISC) ? true : false;
+	allmulti_le = cpu_to_le32(allmulti);
+
+	memset(&dcmd, 0, sizeof(dcmd));
+	dcmd.cmd = BRCMF_C_SET_PROMISC;
+	dcmd.buf = &allmulti_le;
+	dcmd.len = sizeof(allmulti_le);
+	dcmd.set = true;
+
+	ret = brcmf_proto_dcmd(&drvr_priv->pub, 0, &dcmd, dcmd.len);
+	if (ret < 0) {
+		brcmf_dbg(ERROR, "%s: set promisc %d failed\n",
+			  brcmf_ifname(&drvr_priv->pub, 0),
+			  le32_to_cpu(allmulti_le));
+	}
+}
+
+static void
+_brcmf_set_mac_address(struct work_struct *work)
+{
+	char buf[32];
+	struct brcmf_dcmd dcmd;
+	int ret;
+
+	struct brcmf_info *drvr_priv = container_of(work, struct brcmf_info,
+						    setmacaddr_work);
+
+	brcmf_dbg(TRACE, "enter\n");
+	if (!brcmu_mkiovar("cur_etheraddr", (char *)drvr_priv->macvalue,
+			   ETH_ALEN, buf, 32)) {
+		brcmf_dbg(ERROR, "%s: mkiovar failed for cur_etheraddr\n",
+			  brcmf_ifname(&drvr_priv->pub, 0));
+		return;
+	}
+	memset(&dcmd, 0, sizeof(dcmd));
+	dcmd.cmd = BRCMF_C_SET_VAR;
+	dcmd.buf = buf;
+	dcmd.len = 32;
+	dcmd.set = true;
+
+	ret = brcmf_proto_dcmd(&drvr_priv->pub, 0, &dcmd, dcmd.len);
+	if (ret < 0)
+		brcmf_dbg(ERROR, "%s: set cur_etheraddr failed\n",
+			  brcmf_ifname(&drvr_priv->pub, 0));
+	else
+		memcpy(drvr_priv->iflist[0]->ndev->dev_addr,
+		       drvr_priv->macvalue, ETH_ALEN);
+
+	return;
+}
+
+static int brcmf_netdev_set_mac_address(struct net_device *ndev, void *addr)
+{
+	struct brcmf_info *drvr_priv = *(struct brcmf_info **)
+					netdev_priv(ndev);
+	struct sockaddr *sa = (struct sockaddr *)addr;
+	int ifidx;
+
+	ifidx = brcmf_net2idx(drvr_priv, ndev);
+	if (ifidx == BRCMF_BAD_IF)
+		return -1;
+
+	memcpy(&drvr_priv->macvalue, sa->sa_data, ETH_ALEN);
+	schedule_work(&drvr_priv->setmacaddr_work);
+	return 0;
+}
+
+static void brcmf_netdev_set_multicast_list(struct net_device *ndev)
+{
+	struct brcmf_info *drvr_priv = *(struct brcmf_info **)
+					netdev_priv(ndev);
+	int ifidx;
+
+	ifidx = brcmf_net2idx(drvr_priv, ndev);
+	if (ifidx == BRCMF_BAD_IF)
+		return;
+
+	schedule_work(&drvr_priv->multicast_work);
+}
+
+int brcmf_sendpkt(struct brcmf_pub *drvr, int ifidx, struct sk_buff *pktbuf)
+{
+	struct brcmf_info *drvr_priv = drvr->info;
+
+	/* Reject if down */
+	if (!drvr->up || (drvr->busstate == BRCMF_BUS_DOWN))
+		return -ENODEV;
+
+	/* Update multicast statistic */
+	if (pktbuf->len >= ETH_ALEN) {
+		u8 *pktdata = (u8 *) (pktbuf->data);
+		struct ethhdr *eh = (struct ethhdr *)pktdata;
+
+		if (is_multicast_ether_addr(eh->h_dest))
+			drvr->tx_multicast++;
+		if (ntohs(eh->h_proto) == ETH_P_PAE)
+			atomic_inc(&drvr_priv->pend_8021x_cnt);
+	}
+
+	/* If the protocol uses a data header, apply it */
+	brcmf_proto_hdrpush(drvr, ifidx, pktbuf);
+
+	/* Use bus module to send data frame */
+	return brcmf_sdbrcm_bus_txdata(drvr->bus, pktbuf);
+}
+
+static int brcmf_netdev_start_xmit(struct sk_buff *skb, struct net_device *ndev)
+{
+	int ret;
+	struct brcmf_info *drvr_priv = *(struct brcmf_info **)
+					netdev_priv(ndev);
+	int ifidx;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	/* Reject if down */
+	if (!drvr_priv->pub.up || (drvr_priv->pub.busstate == BRCMF_BUS_DOWN)) {
+		brcmf_dbg(ERROR, "xmit rejected pub.up=%d busstate=%d\n",
+			  drvr_priv->pub.up, drvr_priv->pub.busstate);
+		netif_stop_queue(ndev);
+		return -ENODEV;
+	}
+
+	ifidx = brcmf_net2idx(drvr_priv, ndev);
+	if (ifidx == BRCMF_BAD_IF) {
+		brcmf_dbg(ERROR, "bad ifidx %d\n", ifidx);
+		netif_stop_queue(ndev);
+		return -ENODEV;
+	}
+
+	/* Make sure there's enough room for any header */
+	if (skb_headroom(skb) < drvr_priv->pub.hdrlen) {
+		struct sk_buff *skb2;
+
+		brcmf_dbg(INFO, "%s: insufficient headroom\n",
+			  brcmf_ifname(&drvr_priv->pub, ifidx));
+		drvr_priv->pub.tx_realloc++;
+		skb2 = skb_realloc_headroom(skb, drvr_priv->pub.hdrlen);
+		dev_kfree_skb(skb);
+		skb = skb2;
+		if (skb == NULL) {
+			brcmf_dbg(ERROR, "%s: skb_realloc_headroom failed\n",
+				  brcmf_ifname(&drvr_priv->pub, ifidx));
+			ret = -ENOMEM;
+			goto done;
+		}
+	}
+
+	ret = brcmf_sendpkt(&drvr_priv->pub, ifidx, skb);
+
+done:
+	if (ret)
+		drvr_priv->pub.dstats.tx_dropped++;
+	else
+		drvr_priv->pub.tx_packets++;
+
+	/* Return ok: we always eat the packet */
+	return 0;
+}
+
+void brcmf_txflowcontrol(struct brcmf_pub *drvr, int ifidx, bool state)
+{
+	struct net_device *ndev;
+	struct brcmf_info *drvr_priv = drvr->info;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	drvr->txoff = state;
+	ndev = drvr_priv->iflist[ifidx]->ndev;
+	if (state == ON)
+		netif_stop_queue(ndev);
+	else
+		netif_wake_queue(ndev);
+}
+
+static int brcmf_host_event(struct brcmf_info *drvr_priv, int *ifidx,
+			    void *pktdata, struct brcmf_event_msg *event,
+			    void **data)
+{
+	int bcmerror = 0;
+
+	bcmerror = brcmf_c_host_event(drvr_priv, ifidx, pktdata, event, data);
+	if (bcmerror != 0)
+		return bcmerror;
+
+	if (drvr_priv->iflist[*ifidx]->ndev)
+		brcmf_cfg80211_event(drvr_priv->iflist[*ifidx]->ndev,
+				     event, *data);
+
+	return bcmerror;
+}
+
+void brcmf_rx_frame(struct brcmf_pub *drvr, int ifidx, struct sk_buff *skb,
+		  int numpkt)
+{
+	struct brcmf_info *drvr_priv = drvr->info;
+	unsigned char *eth;
+	uint len;
+	void *data;
+	struct sk_buff *pnext, *save_pktbuf;
+	int i;
+	struct brcmf_if *ifp;
+	struct brcmf_event_msg event;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	save_pktbuf = skb;
+
+	for (i = 0; skb && i < numpkt; i++, skb = pnext) {
+
+		pnext = skb->next;
+		skb->next = NULL;
+
+		/* Get the protocol, maintain skb around eth_type_trans()
+		 * The main reason for this hack is for the limitation of
+		 * Linux 2.4 where 'eth_type_trans' uses the
+		 * 'net->hard_header_len'
+		 * to perform skb_pull inside vs ETH_HLEN. Since to avoid
+		 * coping of the packet coming from the network stack to add
+		 * BDC, Hardware header etc, during network interface
+		 * registration
+		 * we set the 'net->hard_header_len' to ETH_HLEN + extra space
+		 * required
+		 * for BDC, Hardware header etc. and not just the ETH_HLEN
+		 */
+		eth = skb->data;
+		len = skb->len;
+
+		ifp = drvr_priv->iflist[ifidx];
+		if (ifp == NULL)
+			ifp = drvr_priv->iflist[0];
+
+		skb->dev = ifp->ndev;
+		skb->protocol = eth_type_trans(skb, skb->dev);
+
+		if (skb->pkt_type == PACKET_MULTICAST)
+			drvr_priv->pub.rx_multicast++;
+
+		skb->data = eth;
+		skb->len = len;
+
+		/* Strip header, count, deliver upward */
+		skb_pull(skb, ETH_HLEN);
+
+		/* Process special event packets and then discard them */
+		if (ntohs(skb->protocol) == ETH_P_LINK_CTL)
+			brcmf_host_event(drvr_priv, &ifidx,
+					  skb_mac_header(skb),
+					  &event, &data);
+
+		if (drvr_priv->iflist[ifidx] &&
+		    !drvr_priv->iflist[ifidx]->state)
+			ifp = drvr_priv->iflist[ifidx];
+
+		if (ifp->ndev)
+			ifp->ndev->last_rx = jiffies;
+
+		drvr->dstats.rx_bytes += skb->len;
+		drvr->rx_packets++;	/* Local count */
+
+		if (in_interrupt())
+			netif_rx(skb);
+		else
+			/* If the receive is not processed inside an ISR,
+			 * the softirqd must be woken explicitly to service
+			 * the NET_RX_SOFTIRQ.  In 2.6 kernels, this is handled
+			 * by netif_rx_ni(), but in earlier kernels, we need
+			 * to do it manually.
+			 */
+			netif_rx_ni(skb);
+	}
+}
+
+void brcmf_txcomplete(struct brcmf_pub *drvr, struct sk_buff *txp, bool success)
+{
+	uint ifidx;
+	struct brcmf_info *drvr_priv = drvr->info;
+	struct ethhdr *eh;
+	u16 type;
+
+	brcmf_proto_hdrpull(drvr, &ifidx, txp);
+
+	eh = (struct ethhdr *)(txp->data);
+	type = ntohs(eh->h_proto);
+
+	if (type == ETH_P_PAE)
+		atomic_dec(&drvr_priv->pend_8021x_cnt);
+
+}
+
+static struct net_device_stats *brcmf_netdev_get_stats(struct net_device *ndev)
+{
+	struct brcmf_info *drvr_priv = *(struct brcmf_info **)
+					netdev_priv(ndev);
+	struct brcmf_if *ifp;
+	int ifidx;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	ifidx = brcmf_net2idx(drvr_priv, ndev);
+	if (ifidx == BRCMF_BAD_IF)
+		return NULL;
+
+	ifp = drvr_priv->iflist[ifidx];
+
+	if (drvr_priv->pub.up)
+		/* Use the protocol to get dongle stats */
+		brcmf_proto_dstats(&drvr_priv->pub);
+
+	/* Copy dongle stats to net device stats */
+	ifp->stats.rx_packets = drvr_priv->pub.dstats.rx_packets;
+	ifp->stats.tx_packets = drvr_priv->pub.dstats.tx_packets;
+	ifp->stats.rx_bytes = drvr_priv->pub.dstats.rx_bytes;
+	ifp->stats.tx_bytes = drvr_priv->pub.dstats.tx_bytes;
+	ifp->stats.rx_errors = drvr_priv->pub.dstats.rx_errors;
+	ifp->stats.tx_errors = drvr_priv->pub.dstats.tx_errors;
+	ifp->stats.rx_dropped = drvr_priv->pub.dstats.rx_dropped;
+	ifp->stats.tx_dropped = drvr_priv->pub.dstats.tx_dropped;
+	ifp->stats.multicast = drvr_priv->pub.dstats.multicast;
+
+	return &ifp->stats;
+}
+
+/* Retrieve current toe component enables, which are kept
+	 as a bitmap in toe_ol iovar */
+static int brcmf_toe_get(struct brcmf_info *drvr_priv, int ifidx, u32 *toe_ol)
+{
+	struct brcmf_dcmd dcmd;
+	char buf[32];
+	int ret;
+
+	memset(&dcmd, 0, sizeof(dcmd));
+
+	dcmd.cmd = BRCMF_C_GET_VAR;
+	dcmd.buf = buf;
+	dcmd.len = (uint) sizeof(buf);
+	dcmd.set = false;
+
+	strcpy(buf, "toe_ol");
+	ret = brcmf_proto_dcmd(&drvr_priv->pub, ifidx, &dcmd, dcmd.len);
+	if (ret < 0) {
+		/* Check for older dongle image that doesn't support toe_ol */
+		if (ret == -EIO) {
+			brcmf_dbg(ERROR, "%s: toe not supported by device\n",
+				  brcmf_ifname(&drvr_priv->pub, ifidx));
+			return -EOPNOTSUPP;
+		}
+
+		brcmf_dbg(INFO, "%s: could not get toe_ol: ret=%d\n",
+			  brcmf_ifname(&drvr_priv->pub, ifidx), ret);
+		return ret;
+	}
+
+	memcpy(toe_ol, buf, sizeof(u32));
+	return 0;
+}
+
+/* Set current toe component enables in toe_ol iovar,
+	 and set toe global enable iovar */
+static int brcmf_toe_set(struct brcmf_info *drvr_priv, int ifidx, u32 toe_ol)
+{
+	struct brcmf_dcmd dcmd;
+	char buf[32];
+	int toe, ret;
+
+	memset(&dcmd, 0, sizeof(dcmd));
+
+	dcmd.cmd = BRCMF_C_SET_VAR;
+	dcmd.buf = buf;
+	dcmd.len = (uint) sizeof(buf);
+	dcmd.set = true;
+
+	/* Set toe_ol as requested */
+
+	strcpy(buf, "toe_ol");
+	memcpy(&buf[sizeof("toe_ol")], &toe_ol, sizeof(u32));
+
+	ret = brcmf_proto_dcmd(&drvr_priv->pub, ifidx, &dcmd, dcmd.len);
+	if (ret < 0) {
+		brcmf_dbg(ERROR, "%s: could not set toe_ol: ret=%d\n",
+			  brcmf_ifname(&drvr_priv->pub, ifidx), ret);
+		return ret;
+	}
+
+	/* Enable toe globally only if any components are enabled. */
+
+	toe = (toe_ol != 0);
+
+	strcpy(buf, "toe");
+	memcpy(&buf[sizeof("toe")], &toe, sizeof(u32));
+
+	ret = brcmf_proto_dcmd(&drvr_priv->pub, ifidx, &dcmd, dcmd.len);
+	if (ret < 0) {
+		brcmf_dbg(ERROR, "%s: could not set toe: ret=%d\n",
+			  brcmf_ifname(&drvr_priv->pub, ifidx), ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static void brcmf_ethtool_get_drvinfo(struct net_device *ndev,
+				    struct ethtool_drvinfo *info)
+{
+	struct brcmf_info *drvr_priv = *(struct brcmf_info **)
+					netdev_priv(ndev);
+
+	sprintf(info->driver, KBUILD_MODNAME);
+	sprintf(info->version, "%lu", drvr_priv->pub.drv_version);
+	sprintf(info->fw_version, "%s", BCM4329_FW_NAME);
+	sprintf(info->bus_info, "%s",
+		dev_name(brcmf_bus_get_device(drvr_priv->pub.bus)));
+}
+
+static struct ethtool_ops brcmf_ethtool_ops = {
+	.get_drvinfo = brcmf_ethtool_get_drvinfo
+};
+
+static int brcmf_ethtool(struct brcmf_info *drvr_priv, void __user *uaddr)
+{
+	struct ethtool_drvinfo info;
+	char drvname[sizeof(info.driver)];
+	u32 cmd;
+	struct ethtool_value edata;
+	u32 toe_cmpnt, csum_dir;
+	int ret;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	/* all ethtool calls start with a cmd word */
+	if (copy_from_user(&cmd, uaddr, sizeof(u32)))
+		return -EFAULT;
+
+	switch (cmd) {
+	case ETHTOOL_GDRVINFO:
+		/* Copy out any request driver name */
+		if (copy_from_user(&info, uaddr, sizeof(info)))
+			return -EFAULT;
+		strncpy(drvname, info.driver, sizeof(info.driver));
+		drvname[sizeof(info.driver) - 1] = '\0';
+
+		/* clear struct for return */
+		memset(&info, 0, sizeof(info));
+		info.cmd = cmd;
+
+		/* if requested, identify ourselves */
+		if (strcmp(drvname, "?dhd") == 0) {
+			sprintf(info.driver, "dhd");
+			strcpy(info.version, BRCMF_VERSION_STR);
+		}
+
+		/* otherwise, require dongle to be up */
+		else if (!drvr_priv->pub.up) {
+			brcmf_dbg(ERROR, "dongle is not up\n");
+			return -ENODEV;
+		}
+
+		/* finally, report dongle driver type */
+		else if (drvr_priv->pub.iswl)
+			sprintf(info.driver, "wl");
+		else
+			sprintf(info.driver, "xx");
+
+		sprintf(info.version, "%lu", drvr_priv->pub.drv_version);
+		if (copy_to_user(uaddr, &info, sizeof(info)))
+			return -EFAULT;
+		brcmf_dbg(CTL, "given %*s, returning %s\n",
+			  (int)sizeof(drvname), drvname, info.driver);
+		break;
+
+		/* Get toe offload components from dongle */
+	case ETHTOOL_GRXCSUM:
+	case ETHTOOL_GTXCSUM:
+		ret = brcmf_toe_get(drvr_priv, 0, &toe_cmpnt);
+		if (ret < 0)
+			return ret;
+
+		csum_dir =
+		    (cmd == ETHTOOL_GTXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
+
+		edata.cmd = cmd;
+		edata.data = (toe_cmpnt & csum_dir) ? 1 : 0;
+
+		if (copy_to_user(uaddr, &edata, sizeof(edata)))
+			return -EFAULT;
+		break;
+
+		/* Set toe offload components in dongle */
+	case ETHTOOL_SRXCSUM:
+	case ETHTOOL_STXCSUM:
+		if (copy_from_user(&edata, uaddr, sizeof(edata)))
+			return -EFAULT;
+
+		/* Read the current settings, update and write back */
+		ret = brcmf_toe_get(drvr_priv, 0, &toe_cmpnt);
+		if (ret < 0)
+			return ret;
+
+		csum_dir =
+		    (cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
+
+		if (edata.data != 0)
+			toe_cmpnt |= csum_dir;
+		else
+			toe_cmpnt &= ~csum_dir;
+
+		ret = brcmf_toe_set(drvr_priv, 0, toe_cmpnt);
+		if (ret < 0)
+			return ret;
+
+		/* If setting TX checksum mode, tell Linux the new mode */
+		if (cmd == ETHTOOL_STXCSUM) {
+			if (edata.data)
+				drvr_priv->iflist[0]->ndev->features |=
+				    NETIF_F_IP_CSUM;
+			else
+				drvr_priv->iflist[0]->ndev->features &=
+				    ~NETIF_F_IP_CSUM;
+		}
+
+		break;
+
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+static int brcmf_netdev_ioctl_entry(struct net_device *ndev, struct ifreq *ifr,
+				    int cmd)
+{
+	struct brcmf_info *drvr_priv = *(struct brcmf_info **)
+					netdev_priv(ndev);
+	int ifidx;
+
+	ifidx = brcmf_net2idx(drvr_priv, ndev);
+	brcmf_dbg(TRACE, "ifidx %d, cmd 0x%04x\n", ifidx, cmd);
+
+	if (ifidx == BRCMF_BAD_IF)
+		return -1;
+
+	if (cmd == SIOCETHTOOL)
+		return brcmf_ethtool(drvr_priv, ifr->ifr_data);
+
+	return -EOPNOTSUPP;
+}
+
+/* called only from within this driver. Sends a command to the dongle. */
+s32 brcmf_exec_dcmd(struct net_device *ndev, u32 cmd, void *arg, u32 len)
+{
+	struct brcmf_dcmd dcmd;
+	s32 err = 0;
+	int buflen = 0;
+	bool is_set_key_cmd;
+	struct brcmf_info *drvr_priv = *(struct brcmf_info **)
+					netdev_priv(ndev);
+	int ifidx;
+
+	memset(&dcmd, 0, sizeof(dcmd));
+	dcmd.cmd = cmd;
+	dcmd.buf = arg;
+	dcmd.len = len;
+
+	ifidx = brcmf_net2idx(drvr_priv, ndev);
+
+	if (dcmd.buf != NULL)
+		buflen = min_t(uint, dcmd.len, BRCMF_DCMD_MAXLEN);
+
+	/* send to dongle (must be up, and wl) */
+	if ((drvr_priv->pub.busstate != BRCMF_BUS_DATA)) {
+		brcmf_dbg(ERROR, "DONGLE_DOWN\n");
+		err = -EIO;
+		goto done;
+	}
+
+	if (!drvr_priv->pub.iswl) {
+		err = -EIO;
+		goto done;
+	}
+
+	/*
+	 * Intercept BRCMF_C_SET_KEY CMD - serialize M4 send and
+	 * set key CMD to prevent M4 encryption.
+	 */
+	is_set_key_cmd = ((dcmd.cmd == BRCMF_C_SET_KEY) ||
+			  ((dcmd.cmd == BRCMF_C_SET_VAR) &&
+			   !(strncmp("wsec_key", dcmd.buf, 9))) ||
+			  ((dcmd.cmd == BRCMF_C_SET_VAR) &&
+			   !(strncmp("bsscfg:wsec_key", dcmd.buf, 15))));
+	if (is_set_key_cmd)
+		brcmf_netdev_wait_pend8021x(ndev);
+
+	err = brcmf_proto_dcmd(&drvr_priv->pub, ifidx, &dcmd, buflen);
+
+done:
+	if (err > 0)
+		err = 0;
+
+	return err;
+}
+
+static int brcmf_netdev_stop(struct net_device *ndev)
+{
+	struct brcmf_pub *drvr = *(struct brcmf_pub **) netdev_priv(ndev);
+
+	brcmf_dbg(TRACE, "Enter\n");
+	brcmf_cfg80211_down(drvr->config);
+	if (drvr->up == 0)
+		return 0;
+
+	/* Set state and stop OS transmissions */
+	drvr->up = 0;
+	netif_stop_queue(ndev);
+
+	return 0;
+}
+
+static int brcmf_netdev_open(struct net_device *ndev)
+{
+	struct brcmf_info *drvr_priv = *(struct brcmf_info **)
+					netdev_priv(ndev);
+	u32 toe_ol;
+	int ifidx = brcmf_net2idx(drvr_priv, ndev);
+	s32 ret = 0;
+
+	brcmf_dbg(TRACE, "ifidx %d\n", ifidx);
+
+	if (ifidx == 0) {	/* do it only for primary eth0 */
+
+		/* try to bring up bus */
+		ret = brcmf_bus_start(&drvr_priv->pub);
+		if (ret != 0) {
+			brcmf_dbg(ERROR, "failed with code %d\n", ret);
+			return -1;
+		}
+		atomic_set(&drvr_priv->pend_8021x_cnt, 0);
+
+		memcpy(ndev->dev_addr, drvr_priv->pub.mac, ETH_ALEN);
+
+		/* Get current TOE mode from dongle */
+		if (brcmf_toe_get(drvr_priv, ifidx, &toe_ol) >= 0
+		    && (toe_ol & TOE_TX_CSUM_OL) != 0)
+			drvr_priv->iflist[ifidx]->ndev->features |=
+				NETIF_F_IP_CSUM;
+		else
+			drvr_priv->iflist[ifidx]->ndev->features &=
+				~NETIF_F_IP_CSUM;
+	}
+	/* Allow transmit calls */
+	netif_start_queue(ndev);
+	drvr_priv->pub.up = 1;
+	if (brcmf_cfg80211_up(drvr_priv->pub.config)) {
+		brcmf_dbg(ERROR, "failed to bring up cfg80211\n");
+		return -1;
+	}
+
+	return ret;
+}
+
+int
+brcmf_add_if(struct brcmf_info *drvr_priv, int ifidx, struct net_device *ndev,
+	     char *name, u8 *mac_addr, u32 flags, u8 bssidx)
+{
+	struct brcmf_if *ifp;
+	int ret = 0, err = 0;
+
+	brcmf_dbg(TRACE, "idx %d, handle->%p\n", ifidx, ndev);
+
+	ifp = drvr_priv->iflist[ifidx];
+	if (!ifp) {
+		ifp = kmalloc(sizeof(struct brcmf_if), GFP_ATOMIC);
+		if (!ifp)
+			return -ENOMEM;
+	}
+
+	memset(ifp, 0, sizeof(struct brcmf_if));
+	ifp->info = drvr_priv;
+	drvr_priv->iflist[ifidx] = ifp;
+	if (mac_addr != NULL)
+		memcpy(&ifp->mac_addr, mac_addr, ETH_ALEN);
+
+	if (ndev == NULL) {
+		ifp->state = BRCMF_E_IF_ADD;
+		ifp->idx = ifidx;
+		/*
+		 * Delete the existing interface before overwriting it
+		 * in case we missed the BRCMF_E_IF_DEL event.
+		 */
+		if (ifp->ndev != NULL) {
+			brcmf_dbg(ERROR, "ERROR: netdev:%s already exists, try free & unregister\n",
+				  ifp->ndev->name);
+			netif_stop_queue(ifp->ndev);
+			unregister_netdev(ifp->ndev);
+			free_netdev(ifp->ndev);
+		}
+
+		/* Allocate netdev, including space for private structure */
+		ifp->ndev = alloc_netdev(sizeof(drvr_priv), "wlan%d",
+					 ether_setup);
+		if (!ifp->ndev) {
+			brcmf_dbg(ERROR, "OOM - alloc_netdev\n");
+			ret = -ENOMEM;
+		}
+
+		if (ret == 0) {
+			memcpy(netdev_priv(ifp->ndev), &drvr_priv,
+			       sizeof(drvr_priv));
+			err = brcmf_net_attach(&drvr_priv->pub, ifp->idx);
+			if (err != 0) {
+				brcmf_dbg(ERROR, "brcmf_net_attach failed, err %d\n",
+					  err);
+				ret = -EOPNOTSUPP;
+			} else {
+				brcmf_dbg(TRACE, " ==== pid:%x, net_device for if:%s created ===\n",
+					  current->pid, ifp->ndev->name);
+				ifp->state = 0;
+			}
+		}
+
+		if (ret < 0) {
+			if (ifp->ndev)
+				free_netdev(ifp->ndev);
+
+			drvr_priv->iflist[ifp->idx] = NULL;
+			kfree(ifp);
+		}
+	} else
+		ifp->ndev = ndev;
+
+	return 0;
+}
+
+void brcmf_del_if(struct brcmf_info *drvr_priv, int ifidx)
+{
+	struct brcmf_if *ifp;
+
+	brcmf_dbg(TRACE, "idx %d\n", ifidx);
+
+	ifp = drvr_priv->iflist[ifidx];
+	if (!ifp) {
+		brcmf_dbg(ERROR, "Null interface\n");
+		return;
+	}
+
+	ifp->state = BRCMF_E_IF_DEL;
+	ifp->idx = ifidx;
+	if (ifp->ndev != NULL) {
+		netif_stop_queue(ifp->ndev);
+		unregister_netdev(ifp->ndev);
+		free_netdev(ifp->ndev);
+		drvr_priv->iflist[ifidx] = NULL;
+		kfree(ifp);
+	}
+}
+
+struct brcmf_pub *brcmf_attach(struct brcmf_bus *bus, uint bus_hdrlen)
+{
+	struct brcmf_info *drvr_priv = NULL;
+	struct net_device *ndev;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	/* Allocate netdev, including space for private structure */
+	ndev = alloc_netdev(sizeof(drvr_priv), "wlan%d", ether_setup);
+	if (!ndev) {
+		brcmf_dbg(ERROR, "OOM - alloc_netdev\n");
+		goto fail;
+	}
+
+	/* Allocate primary brcmf_info */
+	drvr_priv = kzalloc(sizeof(struct brcmf_info), GFP_ATOMIC);
+	if (!drvr_priv)
+		goto fail;
+
+	/*
+	 * Save the brcmf_info into the priv
+	 */
+	memcpy(netdev_priv(ndev), &drvr_priv, sizeof(drvr_priv));
+
+	if (brcmf_add_if(drvr_priv, 0, ndev, ndev->name, NULL, 0, 0) ==
+	    BRCMF_BAD_IF)
+		goto fail;
+
+	ndev->netdev_ops = NULL;
+	mutex_init(&drvr_priv->proto_block);
+
+	/* Link to info module */
+	drvr_priv->pub.info = drvr_priv;
+
+	/* Link to bus module */
+	drvr_priv->pub.bus = bus;
+	drvr_priv->pub.hdrlen = bus_hdrlen;
+
+	/* Attach and link in the protocol */
+	if (brcmf_proto_attach(&drvr_priv->pub) != 0) {
+		brcmf_dbg(ERROR, "brcmf_prot_attach failed\n");
+		goto fail;
+	}
+
+	/* Attach and link in the cfg80211 */
+	drvr_priv->pub.config =
+			brcmf_cfg80211_attach(ndev,
+					      brcmf_bus_get_device(bus),
+					      &drvr_priv->pub);
+	if (drvr_priv->pub.config == NULL) {
+		brcmf_dbg(ERROR, "wl_cfg80211_attach failed\n");
+		goto fail;
+	}
+
+	INIT_WORK(&drvr_priv->setmacaddr_work, _brcmf_set_mac_address);
+	INIT_WORK(&drvr_priv->multicast_work, _brcmf_set_multicast_list);
+
+	/*
+	 * Save the brcmf_info into the priv
+	 */
+	memcpy(netdev_priv(ndev), &drvr_priv, sizeof(drvr_priv));
+
+	return &drvr_priv->pub;
+
+fail:
+	if (ndev)
+		free_netdev(ndev);
+	if (drvr_priv)
+		brcmf_detach(&drvr_priv->pub);
+
+	return NULL;
+}
+
+int brcmf_bus_start(struct brcmf_pub *drvr)
+{
+	int ret = -1;
+	struct brcmf_info *drvr_priv = drvr->info;
+	/* Room for "event_msgs" + '\0' + bitvec */
+	char iovbuf[BRCMF_EVENTING_MASK_LEN + 12];
+
+	brcmf_dbg(TRACE, "\n");
+
+	/* Bring up the bus */
+	ret = brcmf_sdbrcm_bus_init(&drvr_priv->pub);
+	if (ret != 0) {
+		brcmf_dbg(ERROR, "brcmf_sdbrcm_bus_init failed %d\n", ret);
+		return ret;
+	}
+
+	/* If bus is not ready, can't come up */
+	if (drvr_priv->pub.busstate != BRCMF_BUS_DATA) {
+		brcmf_dbg(ERROR, "failed bus is not ready\n");
+		return -ENODEV;
+	}
+
+	brcmu_mkiovar("event_msgs", drvr->eventmask, BRCMF_EVENTING_MASK_LEN,
+		      iovbuf, sizeof(iovbuf));
+	brcmf_proto_cdc_query_dcmd(drvr, 0, BRCMF_C_GET_VAR, iovbuf,
+				    sizeof(iovbuf));
+	memcpy(drvr->eventmask, iovbuf, BRCMF_EVENTING_MASK_LEN);
+
+	setbit(drvr->eventmask, BRCMF_E_SET_SSID);
+	setbit(drvr->eventmask, BRCMF_E_PRUNE);
+	setbit(drvr->eventmask, BRCMF_E_AUTH);
+	setbit(drvr->eventmask, BRCMF_E_REASSOC);
+	setbit(drvr->eventmask, BRCMF_E_REASSOC_IND);
+	setbit(drvr->eventmask, BRCMF_E_DEAUTH_IND);
+	setbit(drvr->eventmask, BRCMF_E_DISASSOC_IND);
+	setbit(drvr->eventmask, BRCMF_E_DISASSOC);
+	setbit(drvr->eventmask, BRCMF_E_JOIN);
+	setbit(drvr->eventmask, BRCMF_E_ASSOC_IND);
+	setbit(drvr->eventmask, BRCMF_E_PSK_SUP);
+	setbit(drvr->eventmask, BRCMF_E_LINK);
+	setbit(drvr->eventmask, BRCMF_E_NDIS_LINK);
+	setbit(drvr->eventmask, BRCMF_E_MIC_ERROR);
+	setbit(drvr->eventmask, BRCMF_E_PMKID_CACHE);
+	setbit(drvr->eventmask, BRCMF_E_TXFAIL);
+	setbit(drvr->eventmask, BRCMF_E_JOIN_START);
+	setbit(drvr->eventmask, BRCMF_E_SCAN_COMPLETE);
+
+/* enable dongle roaming event */
+
+	drvr->pktfilter_count = 1;
+	/* Setup filter to allow only unicast */
+	drvr->pktfilter[0] = "100 0 0 0 0x01 0x00";
+
+	/* Bus is ready, do any protocol initialization */
+	ret = brcmf_proto_init(&drvr_priv->pub);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static struct net_device_ops brcmf_netdev_ops_pri = {
+	.ndo_open = brcmf_netdev_open,
+	.ndo_stop = brcmf_netdev_stop,
+	.ndo_get_stats = brcmf_netdev_get_stats,
+	.ndo_do_ioctl = brcmf_netdev_ioctl_entry,
+	.ndo_start_xmit = brcmf_netdev_start_xmit,
+	.ndo_set_mac_address = brcmf_netdev_set_mac_address,
+	.ndo_set_multicast_list = brcmf_netdev_set_multicast_list
+};
+
+int brcmf_net_attach(struct brcmf_pub *drvr, int ifidx)
+{
+	struct brcmf_info *drvr_priv = drvr->info;
+	struct net_device *ndev;
+	u8 temp_addr[ETH_ALEN] = {
+		0x00, 0x90, 0x4c, 0x11, 0x22, 0x33};
+
+	brcmf_dbg(TRACE, "ifidx %d\n", ifidx);
+
+	ndev = drvr_priv->iflist[ifidx]->ndev;
+	ndev->netdev_ops = &brcmf_netdev_ops_pri;
+
+	/*
+	 * We have to use the primary MAC for virtual interfaces
+	 */
+	if (ifidx != 0) {
+		/* for virtual interfaces use the primary MAC  */
+		memcpy(temp_addr, drvr_priv->pub.mac, ETH_ALEN);
+
+	}
+
+	if (ifidx == 1) {
+		brcmf_dbg(TRACE, "ACCESS POINT MAC:\n");
+		/*  ACCESSPOINT INTERFACE CASE */
+		temp_addr[0] |= 0X02;	/* set bit 2 ,
+			 - Locally Administered address  */
+
+	}
+	ndev->hard_header_len = ETH_HLEN + drvr_priv->pub.hdrlen;
+	ndev->ethtool_ops = &brcmf_ethtool_ops;
+
+	drvr_priv->pub.rxsz = ndev->mtu + ndev->hard_header_len +
+			      drvr_priv->pub.hdrlen;
+
+	memcpy(ndev->dev_addr, temp_addr, ETH_ALEN);
+
+	if (register_netdev(ndev) != 0) {
+		brcmf_dbg(ERROR, "couldn't register the net device\n");
+		goto fail;
+	}
+
+	brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
+
+	return 0;
+
+fail:
+	ndev->netdev_ops = NULL;
+	return -EBADE;
+}
+
+static void brcmf_bus_detach(struct brcmf_pub *drvr)
+{
+	struct brcmf_info *drvr_priv;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	if (drvr) {
+		drvr_priv = drvr->info;
+		if (drvr_priv) {
+			/* Stop the protocol module */
+			brcmf_proto_stop(&drvr_priv->pub);
+
+			/* Stop the bus module */
+			brcmf_sdbrcm_bus_stop(drvr_priv->pub.bus);
+		}
+	}
+}
+
+void brcmf_detach(struct brcmf_pub *drvr)
+{
+	struct brcmf_info *drvr_priv;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	if (drvr) {
+		drvr_priv = drvr->info;
+		if (drvr_priv) {
+			struct brcmf_if *ifp;
+			int i;
+
+			for (i = 1; i < BRCMF_MAX_IFS; i++)
+				if (drvr_priv->iflist[i])
+					brcmf_del_if(drvr_priv, i);
+
+			ifp = drvr_priv->iflist[0];
+			if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
+				rtnl_lock();
+				brcmf_netdev_stop(ifp->ndev);
+				rtnl_unlock();
+				unregister_netdev(ifp->ndev);
+			}
+
+			cancel_work_sync(&drvr_priv->setmacaddr_work);
+			cancel_work_sync(&drvr_priv->multicast_work);
+
+			brcmf_bus_detach(drvr);
+
+			if (drvr->prot)
+				brcmf_proto_detach(drvr);
+
+			brcmf_cfg80211_detach(drvr->config);
+
+			free_netdev(ifp->ndev);
+			kfree(ifp);
+			kfree(drvr_priv);
+		}
+	}
+}
+
+static void __exit brcmf_module_cleanup(void)
+{
+	brcmf_dbg(TRACE, "Enter\n");
+
+	brcmf_bus_unregister();
+}
+
+static int __init brcmf_module_init(void)
+{
+	int error;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	error = brcmf_bus_register();
+
+	if (error) {
+		brcmf_dbg(ERROR, "brcmf_bus_register failed\n");
+		goto failed;
+	}
+	return 0;
+
+failed:
+	return -EINVAL;
+}
+
+module_init(brcmf_module_init);
+module_exit(brcmf_module_cleanup);
+
+int brcmf_os_proto_block(struct brcmf_pub *drvr)
+{
+	struct brcmf_info *drvr_priv = drvr->info;
+
+	if (drvr_priv) {
+		mutex_lock(&drvr_priv->proto_block);
+		return 1;
+	}
+	return 0;
+}
+
+int brcmf_os_proto_unblock(struct brcmf_pub *drvr)
+{
+	struct brcmf_info *drvr_priv = drvr->info;
+
+	if (drvr_priv) {
+		mutex_unlock(&drvr_priv->proto_block);
+		return 1;
+	}
+
+	return 0;
+}
+
+static int brcmf_get_pend_8021x_cnt(struct brcmf_info *drvr_priv)
+{
+	return atomic_read(&drvr_priv->pend_8021x_cnt);
+}
+
+#define MAX_WAIT_FOR_8021X_TX	10
+
+int brcmf_netdev_wait_pend8021x(struct net_device *ndev)
+{
+	struct brcmf_info *drvr_priv = *(struct brcmf_info **)netdev_priv(ndev);
+	int timeout = 10 * HZ / 1000;
+	int ntimes = MAX_WAIT_FOR_8021X_TX;
+	int pend = brcmf_get_pend_8021x_cnt(drvr_priv);
+
+	while (ntimes && pend) {
+		if (pend) {
+			set_current_state(TASK_INTERRUPTIBLE);
+			schedule_timeout(timeout);
+			set_current_state(TASK_RUNNING);
+			ntimes--;
+		}
+		pend = brcmf_get_pend_8021x_cnt(drvr_priv);
+	}
+	return pend;
+}
+
+#ifdef BCMDBG
+int brcmf_write_to_file(struct brcmf_pub *drvr, u8 *buf, int size)
+{
+	int ret = 0;
+	struct file *fp;
+	mm_segment_t old_fs;
+	loff_t pos = 0;
+
+	/* change to KERNEL_DS address limit */
+	old_fs = get_fs();
+	set_fs(KERNEL_DS);
+
+	/* open file to write */
+	fp = filp_open("/tmp/mem_dump", O_WRONLY | O_CREAT, 0640);
+	if (!fp) {
+		brcmf_dbg(ERROR, "open file error\n");
+		ret = -1;
+		goto exit;
+	}
+
+	/* Write buf to file */
+	fp->f_op->write(fp, buf, size, &pos);
+
+exit:
+	/* free buf before return */
+	kfree(buf);
+	/* close file before return */
+	if (fp)
+		filp_close(fp, current->files);
+	/* restore previous address limit */
+	set_fs(old_fs);
+
+	return ret;
+}
+#endif				/* BCMDBG */