2 * Copyright (c) 2010 Broadcom Corporation
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 #include <linux/kernel.h>
18 #include <linux/etherdevice.h>
19 #include <linux/module.h>
20 #include <net/cfg80211.h>
21 #include <net/rtnetlink.h>
22 #include <brcmu_utils.h>
23 #include <brcmu_wifi.h>
27 #include "dhd_proto.h"
29 #include "fwil_types.h"
31 #include "wl_cfg80211.h"
35 MODULE_AUTHOR("Broadcom Corporation");
36 MODULE_DESCRIPTION("Broadcom 802.11 wireless LAN fullmac driver.");
37 MODULE_LICENSE("Dual BSD/GPL");
39 #define MAX_WAIT_FOR_8021X_TX 50 /* msecs */
43 module_param_named(debug, brcmf_msg_level, int, S_IRUSR | S_IWUSR);
44 MODULE_PARM_DESC(debug, "level of debug output");
47 static int brcmf_p2p_enable;
49 module_param_named(p2pon, brcmf_p2p_enable, int, 0);
50 MODULE_PARM_DESC(p2pon, "enable p2p management functionality");
53 char *brcmf_ifname(struct brcmf_pub *drvr, int ifidx)
55 if (ifidx < 0 || ifidx >= BRCMF_MAX_IFS) {
56 brcmf_err("ifidx %d out of range\n", ifidx);
60 if (drvr->iflist[ifidx] == NULL) {
61 brcmf_err("null i/f %d\n", ifidx);
65 if (drvr->iflist[ifidx]->ndev)
66 return drvr->iflist[ifidx]->ndev->name;
71 static void _brcmf_set_multicast_list(struct work_struct *work)
74 struct net_device *ndev;
75 struct netdev_hw_addr *ha;
82 ifp = container_of(work, struct brcmf_if, multicast_work);
84 brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
88 /* Determine initial value of allmulti flag */
89 cmd_value = (ndev->flags & IFF_ALLMULTI) ? true : false;
91 /* Send down the multicast list first. */
92 cnt = netdev_mc_count(ndev);
93 buflen = sizeof(cnt) + (cnt * ETH_ALEN);
94 buf = kmalloc(buflen, GFP_ATOMIC);
99 cnt_le = cpu_to_le32(cnt);
100 memcpy(bufp, &cnt_le, sizeof(cnt_le));
101 bufp += sizeof(cnt_le);
103 netdev_for_each_mc_addr(ha, ndev) {
106 memcpy(bufp, ha->addr, ETH_ALEN);
111 err = brcmf_fil_iovar_data_set(ifp, "mcast_list", buf, buflen);
113 brcmf_err("Setting mcast_list failed, %d\n", err);
114 cmd_value = cnt ? true : cmd_value;
120 * Now send the allmulti setting. This is based on the setting in the
121 * net_device flags, but might be modified above to be turned on if we
122 * were trying to set some addresses and dongle rejected it...
124 err = brcmf_fil_iovar_int_set(ifp, "allmulti", cmd_value);
126 brcmf_err("Setting allmulti failed, %d\n", err);
128 /*Finally, pick up the PROMISC flag */
129 cmd_value = (ndev->flags & IFF_PROMISC) ? true : false;
130 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PROMISC, cmd_value);
132 brcmf_err("Setting BRCMF_C_SET_PROMISC failed, %d\n",
137 _brcmf_set_mac_address(struct work_struct *work)
139 struct brcmf_if *ifp;
142 ifp = container_of(work, struct brcmf_if, setmacaddr_work);
144 brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
146 err = brcmf_fil_iovar_data_set(ifp, "cur_etheraddr", ifp->mac_addr,
149 brcmf_err("Setting cur_etheraddr failed, %d\n", err);
151 brcmf_dbg(TRACE, "MAC address updated to %pM\n",
153 memcpy(ifp->ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
157 static int brcmf_netdev_set_mac_address(struct net_device *ndev, void *addr)
159 struct brcmf_if *ifp = netdev_priv(ndev);
160 struct sockaddr *sa = (struct sockaddr *)addr;
162 memcpy(&ifp->mac_addr, sa->sa_data, ETH_ALEN);
163 schedule_work(&ifp->setmacaddr_work);
167 static void brcmf_netdev_set_multicast_list(struct net_device *ndev)
169 struct brcmf_if *ifp = netdev_priv(ndev);
171 schedule_work(&ifp->multicast_work);
174 static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
175 struct net_device *ndev)
178 struct brcmf_if *ifp = netdev_priv(ndev);
179 struct brcmf_pub *drvr = ifp->drvr;
182 brcmf_dbg(DATA, "Enter, idx=%d\n", ifp->bssidx);
184 /* Can the device send data? */
185 if (drvr->bus_if->state != BRCMF_BUS_DATA) {
186 brcmf_err("xmit rejected state=%d\n", drvr->bus_if->state);
187 netif_stop_queue(ndev);
193 if (!drvr->iflist[ifp->bssidx]) {
194 brcmf_err("bad ifidx %d\n", ifp->bssidx);
195 netif_stop_queue(ndev);
201 /* Make sure there's enough room for any header */
202 if (skb_headroom(skb) < drvr->hdrlen) {
203 struct sk_buff *skb2;
205 brcmf_dbg(INFO, "%s: insufficient headroom\n",
206 brcmf_ifname(drvr, ifp->bssidx));
207 drvr->bus_if->tx_realloc++;
208 skb2 = skb_realloc_headroom(skb, drvr->hdrlen);
212 brcmf_err("%s: skb_realloc_headroom failed\n",
213 brcmf_ifname(drvr, ifp->bssidx));
219 /* validate length for ether packet */
220 if (skb->len < sizeof(*eh)) {
226 ret = brcmf_fws_process_skb(ifp, skb);
230 ifp->stats.tx_dropped++;
232 ifp->stats.tx_packets++;
233 ifp->stats.tx_bytes += skb->len;
236 /* Return ok: we always eat the packet */
240 void brcmf_txflowblock_if(struct brcmf_if *ifp,
241 enum brcmf_netif_stop_reason reason, bool state)
248 brcmf_dbg(TRACE, "enter: idx=%d stop=0x%X reason=%d state=%d\n",
249 ifp->bssidx, ifp->netif_stop, reason, state);
251 spin_lock_irqsave(&ifp->netif_stop_lock, flags);
253 if (!ifp->netif_stop)
254 netif_stop_queue(ifp->ndev);
255 ifp->netif_stop |= reason;
257 ifp->netif_stop &= ~reason;
258 if (!ifp->netif_stop)
259 netif_wake_queue(ifp->ndev);
261 spin_unlock_irqrestore(&ifp->netif_stop_lock, flags);
264 void brcmf_txflowblock(struct device *dev, bool state)
266 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
267 struct brcmf_pub *drvr = bus_if->drvr;
270 brcmf_dbg(TRACE, "Enter\n");
272 if (brcmf_fws_fc_active(drvr->fws)) {
273 brcmf_fws_bus_blocked(drvr, state);
275 for (i = 0; i < BRCMF_MAX_IFS; i++)
276 brcmf_txflowblock_if(drvr->iflist[i],
277 BRCMF_NETIF_STOP_REASON_BLOCK_BUS,
282 void brcmf_rx_frames(struct device *dev, struct sk_buff_head *skb_list)
284 struct sk_buff *skb, *pnext;
285 struct brcmf_if *ifp;
286 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
287 struct brcmf_pub *drvr = bus_if->drvr;
291 brcmf_dbg(DATA, "Enter\n");
293 skb_queue_walk_safe(skb_list, skb, pnext) {
294 skb_unlink(skb, skb_list);
296 /* process and remove protocol-specific header */
297 ret = brcmf_proto_hdrpull(drvr, drvr->fw_signals, &ifidx, skb);
298 ifp = drvr->iflist[ifidx];
300 if (ret || !ifp || !ifp->ndev) {
301 if ((ret != -ENODATA) && ifp)
302 ifp->stats.rx_errors++;
303 brcmu_pkt_buf_free_skb(skb);
307 skb->dev = ifp->ndev;
308 skb->protocol = eth_type_trans(skb, skb->dev);
310 if (skb->pkt_type == PACKET_MULTICAST)
311 ifp->stats.multicast++;
313 /* Process special event packets */
314 brcmf_fweh_process_skb(drvr, skb);
316 if (!(ifp->ndev->flags & IFF_UP)) {
317 brcmu_pkt_buf_free_skb(skb);
321 ifp->stats.rx_bytes += skb->len;
322 ifp->stats.rx_packets++;
327 /* If the receive is not processed inside an ISR,
328 * the softirqd must be woken explicitly to service the
329 * NET_RX_SOFTIRQ. This is handled by netif_rx_ni().
335 void brcmf_txfinalize(struct brcmf_pub *drvr, struct sk_buff *txp,
338 struct brcmf_if *ifp;
344 res = brcmf_proto_hdrpull(drvr, false, &ifidx, txp);
346 ifp = drvr->iflist[ifidx];
351 eh = (struct ethhdr *)(txp->data);
352 type = ntohs(eh->h_proto);
354 if (type == ETH_P_PAE) {
355 atomic_dec(&ifp->pend_8021x_cnt);
356 if (waitqueue_active(&ifp->pend_8021x_wait))
357 wake_up(&ifp->pend_8021x_wait);
361 ifp->stats.tx_errors++;
363 brcmu_pkt_buf_free_skb(txp);
366 void brcmf_txcomplete(struct device *dev, struct sk_buff *txp, bool success)
368 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
369 struct brcmf_pub *drvr = bus_if->drvr;
371 /* await txstatus signal for firmware if active */
372 if (brcmf_fws_fc_active(drvr->fws)) {
374 brcmf_fws_bustxfail(drvr->fws, txp);
376 brcmf_txfinalize(drvr, txp, success);
380 static struct net_device_stats *brcmf_netdev_get_stats(struct net_device *ndev)
382 struct brcmf_if *ifp = netdev_priv(ndev);
384 brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
390 * Set current toe component enables in toe_ol iovar,
391 * and set toe global enable iovar
393 static int brcmf_toe_set(struct brcmf_if *ifp, u32 toe_ol)
397 err = brcmf_fil_iovar_int_set(ifp, "toe_ol", toe_ol);
399 brcmf_err("Setting toe_ol failed, %d\n", err);
403 err = brcmf_fil_iovar_int_set(ifp, "toe", (toe_ol != 0));
405 brcmf_err("Setting toe failed, %d\n", err);
411 static void brcmf_ethtool_get_drvinfo(struct net_device *ndev,
412 struct ethtool_drvinfo *info)
414 struct brcmf_if *ifp = netdev_priv(ndev);
415 struct brcmf_pub *drvr = ifp->drvr;
417 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
418 snprintf(info->version, sizeof(info->version), "%lu",
420 strlcpy(info->bus_info, dev_name(drvr->bus_if->dev),
421 sizeof(info->bus_info));
424 static const struct ethtool_ops brcmf_ethtool_ops = {
425 .get_drvinfo = brcmf_ethtool_get_drvinfo,
428 static int brcmf_ethtool(struct brcmf_if *ifp, void __user *uaddr)
430 struct brcmf_pub *drvr = ifp->drvr;
431 struct ethtool_drvinfo info;
432 char drvname[sizeof(info.driver)];
434 struct ethtool_value edata;
435 u32 toe_cmpnt, csum_dir;
438 brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
440 /* all ethtool calls start with a cmd word */
441 if (copy_from_user(&cmd, uaddr, sizeof(u32)))
445 case ETHTOOL_GDRVINFO:
446 /* Copy out any request driver name */
447 if (copy_from_user(&info, uaddr, sizeof(info)))
449 strncpy(drvname, info.driver, sizeof(info.driver));
450 drvname[sizeof(info.driver) - 1] = '\0';
452 /* clear struct for return */
453 memset(&info, 0, sizeof(info));
456 /* if requested, identify ourselves */
457 if (strcmp(drvname, "?dhd") == 0) {
458 sprintf(info.driver, "dhd");
459 strcpy(info.version, BRCMF_VERSION_STR);
461 /* report dongle driver type */
463 sprintf(info.driver, "wl");
465 sprintf(info.version, "%lu", drvr->drv_version);
466 if (copy_to_user(uaddr, &info, sizeof(info)))
468 brcmf_dbg(TRACE, "given %*s, returning %s\n",
469 (int)sizeof(drvname), drvname, info.driver);
472 /* Get toe offload components from dongle */
473 case ETHTOOL_GRXCSUM:
474 case ETHTOOL_GTXCSUM:
475 ret = brcmf_fil_iovar_int_get(ifp, "toe_ol", &toe_cmpnt);
480 (cmd == ETHTOOL_GTXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
483 edata.data = (toe_cmpnt & csum_dir) ? 1 : 0;
485 if (copy_to_user(uaddr, &edata, sizeof(edata)))
489 /* Set toe offload components in dongle */
490 case ETHTOOL_SRXCSUM:
491 case ETHTOOL_STXCSUM:
492 if (copy_from_user(&edata, uaddr, sizeof(edata)))
495 /* Read the current settings, update and write back */
496 ret = brcmf_fil_iovar_int_get(ifp, "toe_ol", &toe_cmpnt);
501 (cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
504 toe_cmpnt |= csum_dir;
506 toe_cmpnt &= ~csum_dir;
508 ret = brcmf_toe_set(ifp, toe_cmpnt);
512 /* If setting TX checksum mode, tell Linux the new mode */
513 if (cmd == ETHTOOL_STXCSUM) {
515 ifp->ndev->features |= NETIF_F_IP_CSUM;
517 ifp->ndev->features &= ~NETIF_F_IP_CSUM;
529 static int brcmf_netdev_ioctl_entry(struct net_device *ndev, struct ifreq *ifr,
532 struct brcmf_if *ifp = netdev_priv(ndev);
533 struct brcmf_pub *drvr = ifp->drvr;
535 brcmf_dbg(TRACE, "Enter, idx=%d, cmd=0x%04x\n", ifp->bssidx, cmd);
537 if (!drvr->iflist[ifp->bssidx])
540 if (cmd == SIOCETHTOOL)
541 return brcmf_ethtool(ifp, ifr->ifr_data);
546 static int brcmf_netdev_stop(struct net_device *ndev)
548 struct brcmf_if *ifp = netdev_priv(ndev);
550 brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
552 brcmf_cfg80211_down(ndev);
554 /* Set state and stop OS transmissions */
555 netif_stop_queue(ndev);
560 static int brcmf_netdev_open(struct net_device *ndev)
562 struct brcmf_if *ifp = netdev_priv(ndev);
563 struct brcmf_pub *drvr = ifp->drvr;
564 struct brcmf_bus *bus_if = drvr->bus_if;
568 brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
570 /* If bus is not ready, can't continue */
571 if (bus_if->state != BRCMF_BUS_DATA) {
572 brcmf_err("failed bus is not ready\n");
576 atomic_set(&ifp->pend_8021x_cnt, 0);
578 /* Get current TOE mode from dongle */
579 if (brcmf_fil_iovar_int_get(ifp, "toe_ol", &toe_ol) >= 0
580 && (toe_ol & TOE_TX_CSUM_OL) != 0)
581 ndev->features |= NETIF_F_IP_CSUM;
583 ndev->features &= ~NETIF_F_IP_CSUM;
585 /* Allow transmit calls */
586 netif_start_queue(ndev);
587 if (brcmf_cfg80211_up(ndev)) {
588 brcmf_err("failed to bring up cfg80211\n");
595 static const struct net_device_ops brcmf_netdev_ops_pri = {
596 .ndo_open = brcmf_netdev_open,
597 .ndo_stop = brcmf_netdev_stop,
598 .ndo_get_stats = brcmf_netdev_get_stats,
599 .ndo_do_ioctl = brcmf_netdev_ioctl_entry,
600 .ndo_start_xmit = brcmf_netdev_start_xmit,
601 .ndo_set_mac_address = brcmf_netdev_set_mac_address,
602 .ndo_set_rx_mode = brcmf_netdev_set_multicast_list
605 int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked)
607 struct brcmf_pub *drvr = ifp->drvr;
608 struct net_device *ndev;
611 brcmf_dbg(TRACE, "Enter, idx=%d mac=%pM\n", ifp->bssidx,
615 /* set appropriate operations */
616 ndev->netdev_ops = &brcmf_netdev_ops_pri;
618 ndev->hard_header_len += drvr->hdrlen;
619 ndev->ethtool_ops = &brcmf_ethtool_ops;
621 drvr->rxsz = ndev->mtu + ndev->hard_header_len +
624 /* set the mac address */
625 memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
627 INIT_WORK(&ifp->setmacaddr_work, _brcmf_set_mac_address);
628 INIT_WORK(&ifp->multicast_work, _brcmf_set_multicast_list);
631 err = register_netdevice(ndev);
633 err = register_netdev(ndev);
635 brcmf_err("couldn't register the net device\n");
639 brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
641 ndev->destructor = free_netdev;
645 drvr->iflist[ifp->bssidx] = NULL;
646 ndev->netdev_ops = NULL;
651 static int brcmf_net_p2p_open(struct net_device *ndev)
653 brcmf_dbg(TRACE, "Enter\n");
655 return brcmf_cfg80211_up(ndev);
658 static int brcmf_net_p2p_stop(struct net_device *ndev)
660 brcmf_dbg(TRACE, "Enter\n");
662 return brcmf_cfg80211_down(ndev);
665 static int brcmf_net_p2p_do_ioctl(struct net_device *ndev,
666 struct ifreq *ifr, int cmd)
668 brcmf_dbg(TRACE, "Enter\n");
672 static netdev_tx_t brcmf_net_p2p_start_xmit(struct sk_buff *skb,
673 struct net_device *ndev)
676 dev_kfree_skb_any(skb);
681 static const struct net_device_ops brcmf_netdev_ops_p2p = {
682 .ndo_open = brcmf_net_p2p_open,
683 .ndo_stop = brcmf_net_p2p_stop,
684 .ndo_do_ioctl = brcmf_net_p2p_do_ioctl,
685 .ndo_start_xmit = brcmf_net_p2p_start_xmit
688 static int brcmf_net_p2p_attach(struct brcmf_if *ifp)
690 struct net_device *ndev;
692 brcmf_dbg(TRACE, "Enter, idx=%d mac=%pM\n", ifp->bssidx,
696 ndev->netdev_ops = &brcmf_netdev_ops_p2p;
698 /* set the mac address */
699 memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
701 if (register_netdev(ndev) != 0) {
702 brcmf_err("couldn't register the p2p net device\n");
706 brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
711 ifp->drvr->iflist[ifp->bssidx] = NULL;
712 ndev->netdev_ops = NULL;
717 struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bssidx, s32 ifidx,
718 char *name, u8 *mac_addr)
720 struct brcmf_if *ifp;
721 struct net_device *ndev;
723 brcmf_dbg(TRACE, "Enter, idx=%d, ifidx=%d\n", bssidx, ifidx);
725 ifp = drvr->iflist[bssidx];
727 * Delete the existing interface before overwriting it
728 * in case we missed the BRCMF_E_IF_DEL event.
731 brcmf_err("ERROR: netdev:%s already exists\n",
734 netif_stop_queue(ifp->ndev);
735 unregister_netdev(ifp->ndev);
736 free_netdev(ifp->ndev);
737 drvr->iflist[bssidx] = NULL;
739 brcmf_err("ignore IF event\n");
740 return ERR_PTR(-EINVAL);
744 if (!brcmf_p2p_enable && bssidx == 1) {
745 /* this is P2P_DEVICE interface */
746 brcmf_dbg(INFO, "allocate non-netdev interface\n");
747 ifp = kzalloc(sizeof(*ifp), GFP_KERNEL);
749 return ERR_PTR(-ENOMEM);
751 brcmf_dbg(INFO, "allocate netdev interface\n");
752 /* Allocate netdev, including space for private structure */
753 ndev = alloc_netdev(sizeof(*ifp), name, ether_setup);
755 return ERR_PTR(-ENOMEM);
757 ifp = netdev_priv(ndev);
762 drvr->iflist[bssidx] = ifp;
764 ifp->bssidx = bssidx;
766 init_waitqueue_head(&ifp->pend_8021x_wait);
767 spin_lock_init(&ifp->netif_stop_lock);
769 if (mac_addr != NULL)
770 memcpy(ifp->mac_addr, mac_addr, ETH_ALEN);
772 brcmf_dbg(TRACE, " ==== pid:%x, if:%s (%pM) created ===\n",
773 current->pid, name, ifp->mac_addr);
778 void brcmf_del_if(struct brcmf_pub *drvr, s32 bssidx)
780 struct brcmf_if *ifp;
782 ifp = drvr->iflist[bssidx];
783 drvr->iflist[bssidx] = NULL;
785 brcmf_err("Null interface, idx=%d\n", bssidx);
788 brcmf_dbg(TRACE, "Enter, idx=%d, ifidx=%d\n", bssidx, ifp->ifidx);
791 if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
793 brcmf_netdev_stop(ifp->ndev);
797 netif_stop_queue(ifp->ndev);
800 if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
801 cancel_work_sync(&ifp->setmacaddr_work);
802 cancel_work_sync(&ifp->multicast_work);
804 /* unregister will take care of freeing it */
805 unregister_netdev(ifp->ndev);
807 brcmf_cfg80211_detach(drvr->config);
813 int brcmf_attach(uint bus_hdrlen, struct device *dev)
815 struct brcmf_pub *drvr = NULL;
818 brcmf_dbg(TRACE, "Enter\n");
820 /* Allocate primary brcmf_info */
821 drvr = kzalloc(sizeof(struct brcmf_pub), GFP_ATOMIC);
825 mutex_init(&drvr->proto_block);
827 /* Link to bus module */
828 drvr->hdrlen = bus_hdrlen;
829 drvr->bus_if = dev_get_drvdata(dev);
830 drvr->bus_if->drvr = drvr;
832 /* create device debugfs folder */
833 brcmf_debugfs_attach(drvr);
835 /* Attach and link in the protocol */
836 ret = brcmf_proto_attach(drvr);
838 brcmf_err("brcmf_prot_attach failed\n");
842 /* attach firmware event handler */
843 brcmf_fweh_attach(drvr);
845 INIT_LIST_HEAD(&drvr->bus_if->dcmd_list);
855 int brcmf_bus_start(struct device *dev)
858 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
859 struct brcmf_pub *drvr = bus_if->drvr;
860 struct brcmf_if *ifp;
861 struct brcmf_if *p2p_ifp;
863 brcmf_dbg(TRACE, "\n");
865 /* Bring up the bus */
866 ret = brcmf_bus_init(bus_if);
868 brcmf_err("brcmf_sdbrcm_bus_init failed %d\n", ret);
872 /* add primary networking interface */
873 ifp = brcmf_add_if(drvr, 0, 0, "wlan%d", NULL);
877 if (brcmf_p2p_enable)
878 p2p_ifp = brcmf_add_if(drvr, 1, 0, "p2p%d", NULL);
884 /* signal bus ready */
885 bus_if->state = BRCMF_BUS_DATA;
887 /* Bus is ready, do any initialization */
888 ret = brcmf_c_preinit_dcmds(ifp);
892 drvr->fw_signals = true;
893 ret = brcmf_fws_init(drvr);
897 brcmf_fws_add_interface(ifp);
899 drvr->config = brcmf_cfg80211_attach(drvr, bus_if->dev);
900 if (drvr->config == NULL) {
905 ret = brcmf_fweh_activate_events(ifp);
909 ret = brcmf_net_attach(ifp, false);
912 brcmf_err("failed: %d\n", ret);
914 brcmf_cfg80211_detach(drvr->config);
916 brcmf_fws_del_interface(ifp);
917 brcmf_fws_deinit(drvr);
919 if (drvr->iflist[0]) {
920 free_netdev(ifp->ndev);
921 drvr->iflist[0] = NULL;
924 free_netdev(p2p_ifp->ndev);
925 drvr->iflist[1] = NULL;
929 if ((brcmf_p2p_enable) && (p2p_ifp))
930 if (brcmf_net_p2p_attach(p2p_ifp) < 0)
931 brcmf_p2p_enable = 0;
936 static void brcmf_bus_detach(struct brcmf_pub *drvr)
938 brcmf_dbg(TRACE, "Enter\n");
941 /* Stop the protocol module */
942 brcmf_proto_stop(drvr);
944 /* Stop the bus module */
945 brcmf_bus_stop(drvr->bus_if);
949 void brcmf_dev_reset(struct device *dev)
951 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
952 struct brcmf_pub *drvr = bus_if->drvr;
958 brcmf_fil_cmd_int_set(drvr->iflist[0], BRCMF_C_TERMINATED, 1);
961 void brcmf_detach(struct device *dev)
964 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
965 struct brcmf_pub *drvr = bus_if->drvr;
967 brcmf_dbg(TRACE, "Enter\n");
972 /* stop firmware event handling */
973 brcmf_fweh_detach(drvr);
975 /* make sure primary interface removed last */
976 for (i = BRCMF_MAX_IFS-1; i > -1; i--)
977 if (drvr->iflist[i]) {
978 brcmf_fws_del_interface(drvr->iflist[i]);
979 brcmf_del_if(drvr, i);
982 brcmf_bus_detach(drvr);
985 brcmf_proto_detach(drvr);
987 brcmf_fws_deinit(drvr);
989 brcmf_debugfs_detach(drvr);
994 static int brcmf_get_pend_8021x_cnt(struct brcmf_if *ifp)
996 return atomic_read(&ifp->pend_8021x_cnt);
999 int brcmf_netdev_wait_pend8021x(struct net_device *ndev)
1001 struct brcmf_if *ifp = netdev_priv(ndev);
1004 err = wait_event_timeout(ifp->pend_8021x_wait,
1005 !brcmf_get_pend_8021x_cnt(ifp),
1006 msecs_to_jiffies(MAX_WAIT_FOR_8021X_TX));
1014 * return chip id and rev of the device encoded in u32.
1016 u32 brcmf_get_chip_info(struct brcmf_if *ifp)
1018 struct brcmf_bus *bus = ifp->drvr->bus_if;
1020 return bus->chip << 4 | bus->chiprev;
1023 static void brcmf_driver_init(struct work_struct *work)
1025 brcmf_debugfs_init();
1027 #ifdef CONFIG_BRCMFMAC_SDIO
1030 #ifdef CONFIG_BRCMFMAC_USB
1034 static DECLARE_WORK(brcmf_driver_work, brcmf_driver_init);
1036 static int __init brcmfmac_module_init(void)
1038 if (!schedule_work(&brcmf_driver_work))
1044 static void __exit brcmfmac_module_exit(void)
1046 cancel_work_sync(&brcmf_driver_work);
1048 #ifdef CONFIG_BRCMFMAC_SDIO
1051 #ifdef CONFIG_BRCMFMAC_USB
1054 brcmf_debugfs_exit();
1057 module_init(brcmfmac_module_init);
1058 module_exit(brcmfmac_module_exit);