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>
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 0000000..99ba5e3
--- /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 */