fishHEADmaster

1 files changed, 1078 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 0000000..ffb581e
--- /dev/null
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
@@ -0,0 +1,1078 @@
+/*
+ * 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/kernel.h>
+#include <linux/etherdevice.h>
+#include <linux/module.h>
+#include <net/cfg80211.h>
+#include <net/rtnetlink.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 "fwil_types.h"
+#include "p2p.h"
+#include "wl_cfg80211.h"
+#include "fwil.h"
+#include "fwsignal.h"
+
+MODULE_AUTHOR("Broadcom Corporation");
+MODULE_DESCRIPTION("Broadcom 802.11 wireless LAN fullmac driver.");
+MODULE_LICENSE("Dual BSD/GPL");
+
+#define MAX_WAIT_FOR_8021X_TX		50	/* msecs */
+
+/* Error bits */
+int brcmf_msg_level;
+module_param_named(debug, brcmf_msg_level, int, S_IRUSR | S_IWUSR);
+MODULE_PARM_DESC(debug, "level of debug output");
+
+/* P2P0 enable */
+static int brcmf_p2p_enable;
+#ifdef CPTCFG_BRCMDBG
+module_param_named(p2pon, brcmf_p2p_enable, int, 0);
+MODULE_PARM_DESC(p2pon, "enable p2p management functionality");
+#endif
+
+char *brcmf_ifname(struct brcmf_pub *drvr, int ifidx)
+{
+	if (ifidx < 0 || ifidx >= BRCMF_MAX_IFS) {
+		brcmf_err("ifidx %d out of range\n", ifidx);
+		return "<if_bad>";
+	}
+
+	if (drvr->iflist[ifidx] == NULL) {
+		brcmf_err("null i/f %d\n", ifidx);
+		return "<if_null>";
+	}
+
+	if (drvr->iflist[ifidx]->ndev)
+		return drvr->iflist[ifidx]->ndev->name;
+
+	return "<if_none>";
+}
+
+static void _brcmf_set_multicast_list(struct work_struct *work)
+{
+	struct brcmf_if *ifp;
+	struct net_device *ndev;
+	struct netdev_hw_addr *ha;
+	u32 cmd_value, cnt;
+	__le32 cnt_le;
+	char *buf, *bufp;
+	u32 buflen;
+	s32 err;
+
+	ifp = container_of(work, struct brcmf_if, multicast_work);
+
+	brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
+
+	ndev = ifp->ndev;
+
+	/* Determine initial value of allmulti flag */
+	cmd_value = (ndev->flags & IFF_ALLMULTI) ? true : false;
+
+	/* Send down the multicast list first. */
+	cnt = netdev_mc_count(ndev);
+	buflen = sizeof(cnt) + (cnt * ETH_ALEN);
+	buf = kmalloc(buflen, GFP_ATOMIC);
+	if (!buf)
+		return;
+	bufp = buf;
+
+	cnt_le = cpu_to_le32(cnt);
+	memcpy(bufp, &cnt_le, sizeof(cnt_le));
+	bufp += sizeof(cnt_le);
+
+	netdev_for_each_mc_addr(ha, ndev) {
+		if (!cnt)
+			break;
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
+		memcpy(bufp, ha->addr, ETH_ALEN);
+#else
+		memcpy(bufp, ha->dmi_addr, ETH_ALEN);
+#endif
+		bufp += ETH_ALEN;
+		cnt--;
+	}
+
+	err = brcmf_fil_iovar_data_set(ifp, "mcast_list", buf, buflen);
+	if (err < 0) {
+		brcmf_err("Setting mcast_list failed, %d\n", err);
+		cmd_value = cnt ? true : cmd_value;
+	}
+
+	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...
+	 */
+	err = brcmf_fil_iovar_int_set(ifp, "allmulti", cmd_value);
+	if (err < 0)
+		brcmf_err("Setting allmulti failed, %d\n", err);
+
+	/*Finally, pick up the PROMISC flag */
+	cmd_value = (ndev->flags & IFF_PROMISC) ? true : false;
+	err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PROMISC, cmd_value);
+	if (err < 0)
+		brcmf_err("Setting BRCMF_C_SET_PROMISC failed, %d\n",
+			  err);
+}
+
+static void
+_brcmf_set_mac_address(struct work_struct *work)
+{
+	struct brcmf_if *ifp;
+	s32 err;
+
+	ifp = container_of(work, struct brcmf_if, setmacaddr_work);
+
+	brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
+
+	err = brcmf_fil_iovar_data_set(ifp, "cur_etheraddr", ifp->mac_addr,
+				       ETH_ALEN);
+	if (err < 0) {
+		brcmf_err("Setting cur_etheraddr failed, %d\n", err);
+	} else {
+		brcmf_dbg(TRACE, "MAC address updated to %pM\n",
+			  ifp->mac_addr);
+		memcpy(ifp->ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
+	}
+}
+
+static int brcmf_netdev_set_mac_address(struct net_device *ndev, void *addr)
+{
+	struct brcmf_if *ifp = netdev_priv(ndev);
+	struct sockaddr *sa = (struct sockaddr *)addr;
+
+	memcpy(&ifp->mac_addr, sa->sa_data, ETH_ALEN);
+	schedule_work(&ifp->setmacaddr_work);
+	return 0;
+}
+
+static void brcmf_netdev_set_multicast_list(struct net_device *ndev)
+{
+	struct brcmf_if *ifp = netdev_priv(ndev);
+
+	schedule_work(&ifp->multicast_work);
+}
+
+static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
+					   struct net_device *ndev)
+{
+	int ret;
+	struct brcmf_if *ifp = netdev_priv(ndev);
+	struct brcmf_pub *drvr = ifp->drvr;
+	struct ethhdr *eh;
+
+	brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
+
+	/* Can the device send data? */
+	if (drvr->bus_if->state != BRCMF_BUS_DATA) {
+		brcmf_err("xmit rejected state=%d\n", drvr->bus_if->state);
+		netif_stop_queue(ndev);
+		dev_kfree_skb(skb);
+		ret = -ENODEV;
+		goto done;
+	}
+
+	if (!drvr->iflist[ifp->bssidx]) {
+		brcmf_err("bad ifidx %d\n", ifp->bssidx);
+		netif_stop_queue(ndev);
+		dev_kfree_skb(skb);
+		ret = -ENODEV;
+		goto done;
+	}
+
+	/* Make sure there's enough room for any header */
+	if (skb_headroom(skb) < drvr->hdrlen) {
+		struct sk_buff *skb2;
+
+		brcmf_dbg(INFO, "%s: insufficient headroom\n",
+			  brcmf_ifname(drvr, ifp->bssidx));
+		drvr->bus_if->tx_realloc++;
+		skb2 = skb_realloc_headroom(skb, drvr->hdrlen);
+		dev_kfree_skb(skb);
+		skb = skb2;
+		if (skb == NULL) {
+			brcmf_err("%s: skb_realloc_headroom failed\n",
+				  brcmf_ifname(drvr, ifp->bssidx));
+			ret = -ENOMEM;
+			goto done;
+		}
+	}
+
+	/* validate length for ether packet */
+	if (skb->len < sizeof(*eh)) {
+		ret = -EINVAL;
+		dev_kfree_skb(skb);
+		goto done;
+	}
+
+	ret = brcmf_fws_process_skb(ifp, skb);
+
+done:
+	if (ret) {
+		ifp->stats.tx_dropped++;
+	} else {
+		ifp->stats.tx_packets++;
+		ifp->stats.tx_bytes += skb->len;
+	}
+
+	/* Return ok: we always eat the packet */
+	return NETDEV_TX_OK;
+}
+
+void brcmf_txflowblock_if(struct brcmf_if *ifp,
+			  enum brcmf_netif_stop_reason reason, bool state)
+{
+	if (!ifp)
+		return;
+
+	brcmf_dbg(TRACE, "enter: idx=%d stop=0x%X reason=%d state=%d\n",
+		  ifp->bssidx, ifp->netif_stop, reason, state);
+	if (state) {
+		if (!ifp->netif_stop)
+			netif_stop_queue(ifp->ndev);
+		ifp->netif_stop |= reason;
+	} else {
+		ifp->netif_stop &= ~reason;
+		if (!ifp->netif_stop)
+			netif_wake_queue(ifp->ndev);
+	}
+}
+
+void brcmf_txflowblock(struct device *dev, bool state)
+{
+	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
+	struct brcmf_pub *drvr = bus_if->drvr;
+	int i;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	for (i = 0; i < BRCMF_MAX_IFS; i++)
+		brcmf_txflowblock_if(drvr->iflist[i],
+				     BRCMF_NETIF_STOP_REASON_BLOCK_BUS, state);
+}
+
+void brcmf_rx_frames(struct device *dev, struct sk_buff_head *skb_list)
+{
+	unsigned char *eth;
+	uint len;
+	struct sk_buff *skb, *pnext;
+	struct brcmf_if *ifp;
+	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
+	struct brcmf_pub *drvr = bus_if->drvr;
+	u8 ifidx;
+	int ret;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	skb_queue_walk_safe(skb_list, skb, pnext) {
+		skb_unlink(skb, skb_list);
+
+		/* process and remove protocol-specific header */
+		ret = brcmf_proto_hdrpull(drvr, drvr->fw_signals, &ifidx, skb);
+		ifp = drvr->iflist[ifidx];
+
+		if (ret || !ifp || !ifp->ndev) {
+			if ((ret != -ENODATA) && ifp)
+				ifp->stats.rx_errors++;
+			brcmu_pkt_buf_free_skb(skb);
+			continue;
+		}
+
+		/* 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;
+
+		skb->dev = ifp->ndev;
+		skb->protocol = eth_type_trans(skb, skb->dev);
+
+		if (skb->pkt_type == PACKET_MULTICAST)
+			ifp->stats.multicast++;
+
+		skb->data = eth;
+		skb->len = len;
+
+		/* Strip header, count, deliver upward */
+		skb_pull(skb, ETH_HLEN);
+
+		/* Process special event packets */
+		brcmf_fweh_process_skb(drvr, skb);
+
+		if (!(ifp->ndev->flags & IFF_UP)) {
+			brcmu_pkt_buf_free_skb(skb);
+			continue;
+		}
+
+		ifp->stats.rx_bytes += skb->len;
+		ifp->stats.rx_packets++;
+
+		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_txfinalize(struct brcmf_pub *drvr, struct sk_buff *txp,
+		      bool success)
+{
+	struct brcmf_if *ifp;
+	struct ethhdr *eh;
+	u8 ifidx;
+	u16 type;
+	int res;
+
+	res = brcmf_proto_hdrpull(drvr, false, &ifidx, txp);
+
+	ifp = drvr->iflist[ifidx];
+	if (!ifp)
+		goto done;
+
+	if (res == 0) {
+		eh = (struct ethhdr *)(txp->data);
+		type = ntohs(eh->h_proto);
+
+		if (type == ETH_P_PAE) {
+			atomic_dec(&ifp->pend_8021x_cnt);
+			if (waitqueue_active(&ifp->pend_8021x_wait))
+				wake_up(&ifp->pend_8021x_wait);
+		}
+	}
+	if (!success)
+		ifp->stats.tx_errors++;
+done:
+	brcmu_pkt_buf_free_skb(txp);
+}
+
+void brcmf_txcomplete(struct device *dev, struct sk_buff *txp, bool success)
+{
+	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
+	struct brcmf_pub *drvr = bus_if->drvr;
+
+	/* await txstatus signal for firmware if active */
+	if (brcmf_fws_fc_active(drvr->fws)) {
+		if (!success)
+			brcmf_fws_bustxfail(drvr->fws, txp);
+	} else {
+		brcmf_txfinalize(drvr, txp, success);
+	}
+}
+
+static struct net_device_stats *brcmf_netdev_get_stats(struct net_device *ndev)
+{
+	struct brcmf_if *ifp = netdev_priv(ndev);
+
+	brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
+
+	return &ifp->stats;
+}
+
+/*
+ * Set current toe component enables in toe_ol iovar,
+ * and set toe global enable iovar
+ */
+static int brcmf_toe_set(struct brcmf_if *ifp, u32 toe_ol)
+{
+	s32 err;
+
+	err = brcmf_fil_iovar_int_set(ifp, "toe_ol", toe_ol);
+	if (err < 0) {
+		brcmf_err("Setting toe_ol failed, %d\n", err);
+		return err;
+	}
+
+	err = brcmf_fil_iovar_int_set(ifp, "toe", (toe_ol != 0));
+	if (err < 0)
+		brcmf_err("Setting toe failed, %d\n", err);
+
+	return err;
+
+}
+
+static void brcmf_ethtool_get_drvinfo(struct net_device *ndev,
+				    struct ethtool_drvinfo *info)
+{
+	struct brcmf_if *ifp = netdev_priv(ndev);
+	struct brcmf_pub *drvr = ifp->drvr;
+
+	strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
+	snprintf(info->version, sizeof(info->version), "%lu",
+		 drvr->drv_version);
+	strlcpy(info->bus_info, dev_name(drvr->bus_if->dev),
+		sizeof(info->bus_info));
+}
+
+static const struct ethtool_ops brcmf_ethtool_ops = {
+	.get_drvinfo = brcmf_ethtool_get_drvinfo,
+};
+
+static int brcmf_ethtool(struct brcmf_if *ifp, void __user *uaddr)
+{
+	struct brcmf_pub *drvr = ifp->drvr;
+	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, idx=%d\n", ifp->bssidx);
+
+	/* 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);
+		}
+		/* report dongle driver type */
+		else
+			sprintf(info.driver, "wl");
+
+		sprintf(info.version, "%lu", drvr->drv_version);
+		if (copy_to_user(uaddr, &info, sizeof(info)))
+			return -EFAULT;
+		brcmf_dbg(TRACE, "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_fil_iovar_int_get(ifp, "toe_ol", &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_fil_iovar_int_get(ifp, "toe_ol", &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(ifp, toe_cmpnt);
+		if (ret < 0)
+			return ret;
+
+		/* If setting TX checksum mode, tell Linux the new mode */
+		if (cmd == ETHTOOL_STXCSUM) {
+			if (edata.data)
+				ifp->ndev->features |= NETIF_F_IP_CSUM;
+			else
+				ifp->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_if *ifp = netdev_priv(ndev);
+	struct brcmf_pub *drvr = ifp->drvr;
+
+	brcmf_dbg(TRACE, "Enter, idx=%d, cmd=0x%04x\n", ifp->bssidx, cmd);
+
+	if (!drvr->iflist[ifp->bssidx])
+		return -1;
+
+	if (cmd == SIOCETHTOOL)
+		return brcmf_ethtool(ifp, ifr->ifr_data);
+
+	return -EOPNOTSUPP;
+}
+
+static int brcmf_netdev_stop(struct net_device *ndev)
+{
+	struct brcmf_if *ifp = netdev_priv(ndev);
+
+	brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
+
+	brcmf_cfg80211_down(ndev);
+
+	/* Set state and stop OS transmissions */
+	netif_stop_queue(ndev);
+
+	return 0;
+}
+
+static int brcmf_netdev_open(struct net_device *ndev)
+{
+	struct brcmf_if *ifp = netdev_priv(ndev);
+	struct brcmf_pub *drvr = ifp->drvr;
+	struct brcmf_bus *bus_if = drvr->bus_if;
+	u32 toe_ol;
+	s32 ret = 0;
+
+	brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
+
+	/* If bus is not ready, can't continue */
+	if (bus_if->state != BRCMF_BUS_DATA) {
+		brcmf_err("failed bus is not ready\n");
+		return -EAGAIN;
+	}
+
+	atomic_set(&ifp->pend_8021x_cnt, 0);
+
+	/* Get current TOE mode from dongle */
+	if (brcmf_fil_iovar_int_get(ifp, "toe_ol", &toe_ol) >= 0
+	    && (toe_ol & TOE_TX_CSUM_OL) != 0)
+		ndev->features |= NETIF_F_IP_CSUM;
+	else
+		ndev->features &= ~NETIF_F_IP_CSUM;
+
+	/* Allow transmit calls */
+	netif_start_queue(ndev);
+	if (brcmf_cfg80211_up(ndev)) {
+		brcmf_err("failed to bring up cfg80211\n");
+		return -1;
+	}
+
+	return ret;
+}
+
+static const 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_rx_mode = brcmf_netdev_set_multicast_list
+};
+
+int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked)
+{
+	struct brcmf_pub *drvr = ifp->drvr;
+	struct net_device *ndev;
+	s32 err;
+
+	brcmf_dbg(TRACE, "Enter, idx=%d mac=%pM\n", ifp->bssidx,
+		  ifp->mac_addr);
+	ndev = ifp->ndev;
+
+	/* set appropriate operations */
+	ndev->netdev_ops = &brcmf_netdev_ops_pri;
+
+	ndev->hard_header_len = ETH_HLEN + drvr->hdrlen;
+	ndev->ethtool_ops = &brcmf_ethtool_ops;
+
+	drvr->rxsz = ndev->mtu + ndev->hard_header_len +
+			      drvr->hdrlen;
+
+	/* set the mac address */
+	memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
+
+	INIT_WORK(&ifp->setmacaddr_work, _brcmf_set_mac_address);
+	INIT_WORK(&ifp->multicast_work, _brcmf_set_multicast_list);
+
+	if (rtnl_locked)
+		err = register_netdevice(ndev);
+	else
+		err = register_netdev(ndev);
+	if (err != 0) {
+		brcmf_err("couldn't register the net device\n");
+		goto fail;
+	}
+
+	brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
+
+	ndev->destructor = free_netdev;
+	return 0;
+
+fail:
+	drvr->iflist[ifp->bssidx] = NULL;
+	ndev->netdev_ops = NULL;
+	free_netdev(ndev);
+	return -EBADE;
+}
+
+static int brcmf_net_p2p_open(struct net_device *ndev)
+{
+	brcmf_dbg(TRACE, "Enter\n");
+
+	return brcmf_cfg80211_up(ndev);
+}
+
+static int brcmf_net_p2p_stop(struct net_device *ndev)
+{
+	brcmf_dbg(TRACE, "Enter\n");
+
+	return brcmf_cfg80211_down(ndev);
+}
+
+static int brcmf_net_p2p_do_ioctl(struct net_device *ndev,
+				  struct ifreq *ifr, int cmd)
+{
+	brcmf_dbg(TRACE, "Enter\n");
+	return 0;
+}
+
+static netdev_tx_t brcmf_net_p2p_start_xmit(struct sk_buff *skb,
+					    struct net_device *ndev)
+{
+	if (skb)
+		dev_kfree_skb_any(skb);
+
+	return NETDEV_TX_OK;
+}
+
+static const struct net_device_ops brcmf_netdev_ops_p2p = {
+	.ndo_open = brcmf_net_p2p_open,
+	.ndo_stop = brcmf_net_p2p_stop,
+	.ndo_do_ioctl = brcmf_net_p2p_do_ioctl,
+	.ndo_start_xmit = brcmf_net_p2p_start_xmit
+};
+
+static int brcmf_net_p2p_attach(struct brcmf_if *ifp)
+{
+	struct net_device *ndev;
+
+	brcmf_dbg(TRACE, "Enter, idx=%d mac=%pM\n", ifp->bssidx,
+		  ifp->mac_addr);
+	ndev = ifp->ndev;
+
+	ndev->netdev_ops = &brcmf_netdev_ops_p2p;
+
+	/* set the mac address */
+	memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
+
+	if (register_netdev(ndev) != 0) {
+		brcmf_err("couldn't register the p2p net device\n");
+		goto fail;
+	}
+
+	brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
+
+	return 0;
+
+fail:
+	ifp->drvr->iflist[ifp->bssidx] = NULL;
+	ndev->netdev_ops = NULL;
+	free_netdev(ndev);
+	return -EBADE;
+}
+
+struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bssidx, s32 ifidx,
+			      char *name, u8 *mac_addr)
+{
+	struct brcmf_if *ifp;
+	struct net_device *ndev;
+
+	brcmf_dbg(TRACE, "Enter, idx=%d, ifidx=%d\n", bssidx, ifidx);
+
+	ifp = drvr->iflist[bssidx];
+	/*
+	 * Delete the existing interface before overwriting it
+	 * in case we missed the BRCMF_E_IF_DEL event.
+	 */
+	if (ifp) {
+		brcmf_err("ERROR: netdev:%s already exists\n",
+			  ifp->ndev->name);
+		if (ifidx) {
+			netif_stop_queue(ifp->ndev);
+			unregister_netdev(ifp->ndev);
+			free_netdev(ifp->ndev);
+			drvr->iflist[bssidx] = NULL;
+		} else {
+			brcmf_err("ignore IF event\n");
+			return ERR_PTR(-EINVAL);
+		}
+	}
+
+	if (!brcmf_p2p_enable && bssidx == 1) {
+		/* this is P2P_DEVICE interface */
+		brcmf_dbg(INFO, "allocate non-netdev interface\n");
+		ifp = kzalloc(sizeof(*ifp), GFP_KERNEL);
+		if (!ifp)
+			return ERR_PTR(-ENOMEM);
+	} else {
+		brcmf_dbg(INFO, "allocate netdev interface\n");
+		/* Allocate netdev, including space for private structure */
+		ndev = alloc_netdev(sizeof(*ifp), name, ether_setup);
+		if (!ndev)
+			return ERR_PTR(-ENOMEM);
+
+		ifp = netdev_priv(ndev);
+		ifp->ndev = ndev;
+	}
+
+	ifp->drvr = drvr;
+	drvr->iflist[bssidx] = ifp;
+	ifp->ifidx = ifidx;
+	ifp->bssidx = bssidx;
+
+	init_waitqueue_head(&ifp->pend_8021x_wait);
+
+	if (mac_addr != NULL)
+		memcpy(ifp->mac_addr, mac_addr, ETH_ALEN);
+
+	brcmf_dbg(TRACE, " ==== pid:%x, if:%s (%pM) created ===\n",
+		  current->pid, name, ifp->mac_addr);
+
+	return ifp;
+}
+
+void brcmf_del_if(struct brcmf_pub *drvr, s32 bssidx)
+{
+	struct brcmf_if *ifp;
+
+	ifp = drvr->iflist[bssidx];
+	drvr->iflist[bssidx] = NULL;
+	if (!ifp) {
+		brcmf_err("Null interface, idx=%d\n", bssidx);
+		return;
+	}
+	brcmf_dbg(TRACE, "Enter, idx=%d, ifidx=%d\n", bssidx, ifp->ifidx);
+	if (ifp->ndev) {
+		if (bssidx == 0) {
+			if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
+				rtnl_lock();
+				brcmf_netdev_stop(ifp->ndev);
+				rtnl_unlock();
+			}
+		} else {
+			netif_stop_queue(ifp->ndev);
+		}
+
+		if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
+			cancel_work_sync(&ifp->setmacaddr_work);
+			cancel_work_sync(&ifp->multicast_work);
+		}
+		/* unregister will take care of freeing it */
+		unregister_netdev(ifp->ndev);
+		if (bssidx == 0)
+			brcmf_cfg80211_detach(drvr->config);
+	} else {
+		kfree(ifp);
+	}
+}
+
+int brcmf_attach(uint bus_hdrlen, struct device *dev)
+{
+	struct brcmf_pub *drvr = NULL;
+	int ret = 0;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	/* Allocate primary brcmf_info */
+	drvr = kzalloc(sizeof(struct brcmf_pub), GFP_ATOMIC);
+	if (!drvr)
+		return -ENOMEM;
+
+	mutex_init(&drvr->proto_block);
+
+	/* Link to bus module */
+	drvr->hdrlen = bus_hdrlen;
+	drvr->bus_if = dev_get_drvdata(dev);
+	drvr->bus_if->drvr = drvr;
+
+	/* create device debugfs folder */
+	brcmf_debugfs_attach(drvr);
+
+	/* Attach and link in the protocol */
+	ret = brcmf_proto_attach(drvr);
+	if (ret != 0) {
+		brcmf_err("brcmf_prot_attach failed\n");
+		goto fail;
+	}
+
+	/* attach firmware event handler */
+	brcmf_fweh_attach(drvr);
+
+	INIT_LIST_HEAD(&drvr->bus_if->dcmd_list);
+
+	return ret;
+
+fail:
+	brcmf_detach(dev);
+
+	return ret;
+}
+
+int brcmf_bus_start(struct device *dev)
+{
+	int ret = -1;
+	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
+	struct brcmf_pub *drvr = bus_if->drvr;
+	struct brcmf_if *ifp;
+	struct brcmf_if *p2p_ifp;
+
+	brcmf_dbg(TRACE, "\n");
+
+	/* Bring up the bus */
+	ret = brcmf_bus_init(bus_if);
+	if (ret != 0) {
+		brcmf_err("brcmf_sdbrcm_bus_init failed %d\n", ret);
+		return ret;
+	}
+
+	/* add primary networking interface */
+	ifp = brcmf_add_if(drvr, 0, 0, "wlan%d", NULL);
+	if (IS_ERR(ifp))
+		return PTR_ERR(ifp);
+
+	if (brcmf_p2p_enable)
+		p2p_ifp = brcmf_add_if(drvr, 1, 0, "p2p%d", NULL);
+	else
+		p2p_ifp = NULL;
+	if (IS_ERR(p2p_ifp))
+		p2p_ifp = NULL;
+
+	/* signal bus ready */
+	bus_if->state = BRCMF_BUS_DATA;
+
+	/* Bus is ready, do any initialization */
+	ret = brcmf_c_preinit_dcmds(ifp);
+	if (ret < 0)
+		goto fail;
+
+	drvr->fw_signals = true;
+	ret = brcmf_fws_init(drvr);
+	if (ret < 0)
+		goto fail;
+
+	brcmf_fws_add_interface(ifp);
+
+	drvr->config = brcmf_cfg80211_attach(drvr, bus_if->dev);
+	if (drvr->config == NULL) {
+		ret = -ENOMEM;
+		goto fail;
+	}
+
+	ret = brcmf_fweh_activate_events(ifp);
+	if (ret < 0)
+		goto fail;
+
+	ret = brcmf_net_attach(ifp, false);
+fail:
+	if (ret < 0) {
+		brcmf_err("failed: %d\n", ret);
+		if (drvr->config)
+			brcmf_cfg80211_detach(drvr->config);
+		if (drvr->fws) {
+			brcmf_fws_del_interface(ifp);
+			brcmf_fws_deinit(drvr);
+		}
+		if (drvr->iflist[0]) {
+			free_netdev(ifp->ndev);
+			drvr->iflist[0] = NULL;
+		}
+		if (p2p_ifp) {
+			free_netdev(p2p_ifp->ndev);
+			drvr->iflist[1] = NULL;
+		}
+		return ret;
+	}
+	if ((brcmf_p2p_enable) && (p2p_ifp))
+		if (brcmf_net_p2p_attach(p2p_ifp) < 0)
+			brcmf_p2p_enable = 0;
+
+	return 0;
+}
+
+static void brcmf_bus_detach(struct brcmf_pub *drvr)
+{
+	brcmf_dbg(TRACE, "Enter\n");
+
+	if (drvr) {
+		/* Stop the protocol module */
+		brcmf_proto_stop(drvr);
+
+		/* Stop the bus module */
+		brcmf_bus_stop(drvr->bus_if);
+	}
+}
+
+void brcmf_dev_reset(struct device *dev)
+{
+	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
+	struct brcmf_pub *drvr = bus_if->drvr;
+
+	if (drvr == NULL)
+		return;
+
+	if (drvr->iflist[0])
+		brcmf_fil_cmd_int_set(drvr->iflist[0], BRCMF_C_TERMINATED, 1);
+}
+
+void brcmf_detach(struct device *dev)
+{
+	s32 i;
+	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
+	struct brcmf_pub *drvr = bus_if->drvr;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	if (drvr == NULL)
+		return;
+
+	/* stop firmware event handling */
+	brcmf_fweh_detach(drvr);
+
+	/* make sure primary interface removed last */
+	for (i = BRCMF_MAX_IFS-1; i > -1; i--)
+		if (drvr->iflist[i]) {
+			brcmf_fws_del_interface(drvr->iflist[i]);
+			brcmf_del_if(drvr, i);
+		}
+
+	brcmf_bus_detach(drvr);
+
+	if (drvr->prot)
+		brcmf_proto_detach(drvr);
+
+	brcmf_fws_deinit(drvr);
+
+	brcmf_debugfs_detach(drvr);
+	bus_if->drvr = NULL;
+	kfree(drvr);
+}
+
+static int brcmf_get_pend_8021x_cnt(struct brcmf_if *ifp)
+{
+	return atomic_read(&ifp->pend_8021x_cnt);
+}
+
+int brcmf_netdev_wait_pend8021x(struct net_device *ndev)
+{
+	struct brcmf_if *ifp = netdev_priv(ndev);
+	int err;
+
+	err = wait_event_timeout(ifp->pend_8021x_wait,
+				 !brcmf_get_pend_8021x_cnt(ifp),
+				 msecs_to_jiffies(MAX_WAIT_FOR_8021X_TX));
+
+	WARN_ON(!err);
+
+	return !err;
+}
+
+/*
+ * return chip id and rev of the device encoded in u32.
+ */
+u32 brcmf_get_chip_info(struct brcmf_if *ifp)
+{
+	struct brcmf_bus *bus = ifp->drvr->bus_if;
+
+	return bus->chip << 4 | bus->chiprev;
+}
+
+static void brcmf_driver_register(struct work_struct *work)
+{
+#ifdef CPTCFG_BRCMFMAC_SDIO
+	brcmf_sdio_register();
+#endif
+#ifdef CPTCFG_BRCMFMAC_USB
+	brcmf_usb_register();
+#endif
+}
+static DECLARE_WORK(brcmf_driver_work, brcmf_driver_register);
+
+static int __init brcmfmac_module_init(void)
+{
+	brcmf_debugfs_init();
+#ifdef CPTCFG_BRCMFMAC_SDIO
+	brcmf_sdio_init();
+#endif
+	if (!schedule_work(&brcmf_driver_work))
+		return -EBUSY;
+
+	return 0;
+}
+
+static void __exit brcmfmac_module_exit(void)
+{
+	cancel_work_sync(&brcmf_driver_work);
+
+#ifdef CPTCFG_BRCMFMAC_SDIO
+	brcmf_sdio_exit();
+#endif
+#ifdef CPTCFG_BRCMFMAC_USB
+	brcmf_usb_exit();
+#endif
+	brcmf_debugfs_exit();
+}
+
+module_init(brcmfmac_module_init);
+module_exit(brcmfmac_module_exit);