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/init.h>
18 #include <linux/kernel.h>
19 #include <linux/kthread.h>
20 #include <linux/slab.h>
21 #include <linux/skbuff.h>
22 #include <linux/netdevice.h>
23 #include <linux/etherdevice.h>
24 #include <linux/mmc/sdio_func.h>
25 #include <linux/random.h>
26 #include <linux/spinlock.h>
27 #include <linux/ethtool.h>
28 #include <linux/fcntl.h>
30 #include <linux/uaccess.h>
31 #include <linux/hardirq.h>
32 #include <linux/mutex.h>
33 #include <linux/wait.h>
34 #include <net/cfg80211.h>
36 #include <brcmu_utils.h>
37 #include <brcmu_wifi.h>
41 #include "dhd_proto.h"
43 #include "wl_cfg80211.h"
46 MODULE_AUTHOR("Broadcom Corporation");
47 MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN fullmac driver.");
48 MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN fullmac cards");
49 MODULE_LICENSE("Dual BSD/GPL");
52 /* Interface control information */
54 struct brcmf_info
*info
; /* back pointer to brcmf_info */
55 /* OS/stack specifics */
56 struct net_device
*net
;
57 struct net_device_stats stats
;
58 int idx
; /* iface idx in dongle */
59 int state
; /* interface state */
60 uint subunit
; /* subunit */
61 u8 mac_addr
[ETH_ALEN
]; /* assigned MAC address */
62 bool attached
; /* Delayed attachment when unset */
63 bool txflowcontrol
; /* Per interface flow control indicator */
64 char name
[IFNAMSIZ
]; /* linux interface name */
67 /* Local private structure (extension of pub) */
71 /* OS/stack specifics */
72 struct brcmf_if
*iflist
[BRCMF_MAX_IFS
];
74 struct mutex proto_block
;
76 /* Thread to issue ioctl for multicast */
77 struct task_struct
*sysioc_tsk
;
78 wait_queue_head_t sysioc_waitq
;
81 u8 macvalue
[ETH_ALEN
];
82 atomic_t pend_8021x_cnt
;
86 module_param(brcmf_msg_level
, int, 0);
88 /* Spawn a thread for system ioctls (set mac, set mcast) */
89 uint brcmf_sysioc
= true;
90 module_param(brcmf_sysioc
, uint
, 0);
92 /* ARP offload agent mode : Enable ARP Host Auto-Reply
93 and ARP Peer Auto-Reply */
94 uint brcmf_arp_mode
= 0xb;
95 module_param(brcmf_arp_mode
, uint
, 0);
97 /* ARP offload enable */
98 uint brcmf_arp_enable
= true;
99 module_param(brcmf_arp_enable
, uint
, 0);
101 /* Global Pkt filter enable control */
102 uint brcmf_pkt_filter_enable
= true;
103 module_param(brcmf_pkt_filter_enable
, uint
, 0);
105 /* Pkt filter init setup */
106 uint brcmf_pkt_filter_init
;
107 module_param(brcmf_pkt_filter_init
, uint
, 0);
109 /* Pkt filter mode control */
110 uint brcmf_master_mode
= true;
111 module_param(brcmf_master_mode
, uint
, 0);
113 /* Contorl fw roaming */
116 /* Control radio state */
117 uint brcmf_radio_up
= 1;
119 /* Network inteface name */
120 char iface_name
[IFNAMSIZ
] = "wlan";
121 module_param_string(iface_name
, iface_name
, IFNAMSIZ
, 0);
123 static int brcmf_net2idx(struct brcmf_info
*drvr_priv
, struct net_device
*net
)
127 while (i
< BRCMF_MAX_IFS
) {
128 if (drvr_priv
->iflist
[i
] && (drvr_priv
->iflist
[i
]->net
== net
))
136 int brcmf_ifname2idx(struct brcmf_info
*drvr_priv
, char *name
)
138 int i
= BRCMF_MAX_IFS
;
140 if (name
== NULL
|| *name
== '\0')
144 if (drvr_priv
->iflist
[i
]
145 && !strncmp(drvr_priv
->iflist
[i
]->name
, name
, IFNAMSIZ
))
148 brcmf_dbg(TRACE
, "return idx %d for \"%s\"\n", i
, name
);
150 return i
; /* default - the primary interface */
153 char *brcmf_ifname(struct brcmf_pub
*drvr
, int ifidx
)
155 struct brcmf_info
*drvr_priv
= drvr
->info
;
157 if (ifidx
< 0 || ifidx
>= BRCMF_MAX_IFS
) {
158 brcmf_dbg(ERROR
, "ifidx %d out of range\n", ifidx
);
162 if (drvr_priv
->iflist
[ifidx
] == NULL
) {
163 brcmf_dbg(ERROR
, "null i/f %d\n", ifidx
);
167 if (drvr_priv
->iflist
[ifidx
]->net
)
168 return drvr_priv
->iflist
[ifidx
]->net
->name
;
173 static void _brcmf_set_multicast_list(struct brcmf_info
*drvr_priv
, int ifidx
)
175 struct net_device
*dev
;
176 struct netdev_hw_addr
*ha
;
179 struct brcmf_ioctl ioc
;
184 dev
= drvr_priv
->iflist
[ifidx
]->net
;
185 cnt
= netdev_mc_count(dev
);
187 /* Determine initial value of allmulti flag */
188 allmulti
= (dev
->flags
& IFF_ALLMULTI
) ? true : false;
190 /* Send down the multicast list first. */
192 buflen
= sizeof("mcast_list") + sizeof(cnt
) + (cnt
* ETH_ALEN
);
193 bufp
= buf
= kmalloc(buflen
, GFP_ATOMIC
);
195 brcmf_dbg(ERROR
, "%s: out of memory for mcast_list, cnt %d\n",
196 brcmf_ifname(&drvr_priv
->pub
, ifidx
), cnt
);
200 strcpy(bufp
, "mcast_list");
201 bufp
+= strlen("mcast_list") + 1;
203 cnt
= cpu_to_le32(cnt
);
204 memcpy(bufp
, &cnt
, sizeof(cnt
));
207 netdev_for_each_mc_addr(ha
, dev
) {
210 memcpy(bufp
, ha
->addr
, ETH_ALEN
);
215 memset(&ioc
, 0, sizeof(ioc
));
216 ioc
.cmd
= BRCMF_C_SET_VAR
;
221 ret
= brcmf_proto_ioctl(&drvr_priv
->pub
, ifidx
, &ioc
, ioc
.buf
, ioc
.len
);
223 brcmf_dbg(ERROR
, "%s: set mcast_list failed, cnt %d\n",
224 brcmf_ifname(&drvr_priv
->pub
, ifidx
), cnt
);
225 allmulti
= cnt
? true : allmulti
;
230 /* Now send the allmulti setting. This is based on the setting in the
231 * net_device flags, but might be modified above to be turned on if we
232 * were trying to set some addresses and dongle rejected it...
235 buflen
= sizeof("allmulti") + sizeof(allmulti
);
236 buf
= kmalloc(buflen
, GFP_ATOMIC
);
238 brcmf_dbg(ERROR
, "%s: out of memory for allmulti\n",
239 brcmf_ifname(&drvr_priv
->pub
, ifidx
));
242 allmulti
= cpu_to_le32(allmulti
);
245 ("allmulti", (void *)&allmulti
, sizeof(allmulti
), buf
, buflen
)) {
246 brcmf_dbg(ERROR
, "%s: mkiovar failed for allmulti, datalen %d buflen %u\n",
247 brcmf_ifname(&drvr_priv
->pub
, ifidx
),
248 (int)sizeof(allmulti
), buflen
);
253 memset(&ioc
, 0, sizeof(ioc
));
254 ioc
.cmd
= BRCMF_C_SET_VAR
;
259 ret
= brcmf_proto_ioctl(&drvr_priv
->pub
, ifidx
, &ioc
, ioc
.buf
, ioc
.len
);
261 brcmf_dbg(ERROR
, "%s: set allmulti %d failed\n",
262 brcmf_ifname(&drvr_priv
->pub
, ifidx
),
263 le32_to_cpu(allmulti
));
268 /* Finally, pick up the PROMISC flag as well, like the NIC
271 allmulti
= (dev
->flags
& IFF_PROMISC
) ? true : false;
272 allmulti
= cpu_to_le32(allmulti
);
274 memset(&ioc
, 0, sizeof(ioc
));
275 ioc
.cmd
= BRCMF_C_SET_PROMISC
;
277 ioc
.len
= sizeof(allmulti
);
280 ret
= brcmf_proto_ioctl(&drvr_priv
->pub
, ifidx
, &ioc
, ioc
.buf
, ioc
.len
);
282 brcmf_dbg(ERROR
, "%s: set promisc %d failed\n",
283 brcmf_ifname(&drvr_priv
->pub
, ifidx
),
284 le32_to_cpu(allmulti
));
289 _brcmf_set_mac_address(struct brcmf_info
*drvr_priv
, int ifidx
, u8
*addr
)
292 struct brcmf_ioctl ioc
;
295 brcmf_dbg(TRACE
, "enter\n");
296 if (!brcmu_mkiovar("cur_etheraddr", (char *)addr
, ETH_ALEN
, buf
, 32)) {
297 brcmf_dbg(ERROR
, "%s: mkiovar failed for cur_etheraddr\n",
298 brcmf_ifname(&drvr_priv
->pub
, ifidx
));
301 memset(&ioc
, 0, sizeof(ioc
));
302 ioc
.cmd
= BRCMF_C_SET_VAR
;
307 ret
= brcmf_proto_ioctl(&drvr_priv
->pub
, ifidx
, &ioc
, ioc
.buf
, ioc
.len
);
309 brcmf_dbg(ERROR
, "%s: set cur_etheraddr failed\n",
310 brcmf_ifname(&drvr_priv
->pub
, ifidx
));
312 memcpy(drvr_priv
->iflist
[ifidx
]->net
->dev_addr
, addr
, ETH_ALEN
);
318 static struct net_device
*ap_net_dev
;
321 /* Virtual interfaces only ((ifp && ifp->info && ifp->idx == true) */
322 static void brcmf_op_if(struct brcmf_if
*ifp
)
324 struct brcmf_info
*drvr_priv
;
325 int ret
= 0, err
= 0;
327 drvr_priv
= ifp
->info
;
329 brcmf_dbg(TRACE
, "idx %d, state %d\n", ifp
->idx
, ifp
->state
);
331 switch (ifp
->state
) {
334 * Delete the existing interface before overwriting it
335 * in case we missed the BRCMF_E_IF_DEL event.
337 if (ifp
->net
!= NULL
) {
338 brcmf_dbg(ERROR
, "ERROR: netdev:%s already exists, try free & unregister\n",
340 netif_stop_queue(ifp
->net
);
341 unregister_netdev(ifp
->net
);
342 free_netdev(ifp
->net
);
344 /* Allocate etherdev, including space for private structure */
345 ifp
->net
= alloc_etherdev(sizeof(drvr_priv
));
347 brcmf_dbg(ERROR
, "OOM - alloc_etherdev\n");
351 strcpy(ifp
->net
->name
, ifp
->name
);
352 memcpy(netdev_priv(ifp
->net
), &drvr_priv
,
354 err
= brcmf_net_attach(&drvr_priv
->pub
, ifp
->idx
);
356 brcmf_dbg(ERROR
, "brcmf_net_attach failed, err %d\n",
361 /* semaphore that the soft AP CODE
363 struct semaphore ap_eth_sema
;
365 /* save ptr to wl0.1 netdev for use
367 ap_net_dev
= ifp
->net
;
368 /* signal to the SOFTAP 'sleeper' thread,
372 brcmf_dbg(TRACE
, " ==== pid:%x, net_device for if:%s created ===\n",
373 current
->pid
, ifp
->net
->name
);
379 if (ifp
->net
!= NULL
) {
380 brcmf_dbg(TRACE
, "got 'WLC_E_IF_DEL' state\n");
381 netif_stop_queue(ifp
->net
);
382 unregister_netdev(ifp
->net
);
383 ret
= BRCMF_DEL_IF
; /* Make sure the free_netdev()
388 brcmf_dbg(ERROR
, "bad op %d\n", ifp
->state
);
394 free_netdev(ifp
->net
);
396 drvr_priv
->iflist
[ifp
->idx
] = NULL
;
399 if (ifp
->net
== ap_net_dev
)
400 ap_net_dev
= NULL
; /* NULL SOFTAP global
406 static int _brcmf_sysioc_thread(void *data
)
408 struct brcmf_info
*drvr_priv
= (struct brcmf_info
*) data
;
413 DECLARE_WAITQUEUE(wait
, current
);
414 allow_signal(SIGTERM
);
416 add_wait_queue(&drvr_priv
->sysioc_waitq
, &wait
);
418 prepare_to_wait(&drvr_priv
->sysioc_waitq
, &wait
,
424 if (kthread_should_stop())
427 for (i
= 0; i
< BRCMF_MAX_IFS
; i
++) {
428 struct brcmf_if
*ifentry
= drvr_priv
->iflist
[i
];
431 in_ap
= (ap_net_dev
!= NULL
);
434 brcmf_op_if(ifentry
);
436 if (drvr_priv
->iflist
[i
] == NULL
) {
437 brcmf_dbg(TRACE
, "interface %d removed!\n",
442 if (in_ap
&& drvr_priv
->set_macaddress
) {
443 brcmf_dbg(TRACE
, "attempt to set MAC for %s in AP Mode, blocked.\n",
445 drvr_priv
->set_macaddress
= false;
449 if (in_ap
&& drvr_priv
->set_multicast
) {
450 brcmf_dbg(TRACE
, "attempt to set MULTICAST list for %s in AP Mode, blocked.\n",
452 drvr_priv
->set_multicast
= false;
456 if (drvr_priv
->set_multicast
) {
457 drvr_priv
->set_multicast
= false;
458 _brcmf_set_multicast_list(drvr_priv
, i
);
460 if (drvr_priv
->set_macaddress
) {
461 drvr_priv
->set_macaddress
= false;
462 _brcmf_set_mac_address(drvr_priv
, i
,
463 drvr_priv
->macvalue
);
468 finish_wait(&drvr_priv
->sysioc_waitq
, &wait
);
472 static int brcmf_netdev_set_mac_address(struct net_device
*dev
, void *addr
)
476 struct brcmf_info
*drvr_priv
= *(struct brcmf_info
**) netdev_priv(dev
);
477 struct sockaddr
*sa
= (struct sockaddr
*)addr
;
480 ifidx
= brcmf_net2idx(drvr_priv
, dev
);
481 if (ifidx
== BRCMF_BAD_IF
)
484 memcpy(&drvr_priv
->macvalue
, sa
->sa_data
, ETH_ALEN
);
485 drvr_priv
->set_macaddress
= true;
486 wake_up(&drvr_priv
->sysioc_waitq
);
490 static void brcmf_netdev_set_multicast_list(struct net_device
*dev
)
492 struct brcmf_info
*drvr_priv
= *(struct brcmf_info
**) netdev_priv(dev
);
495 ifidx
= brcmf_net2idx(drvr_priv
, dev
);
496 if (ifidx
== BRCMF_BAD_IF
)
499 drvr_priv
->set_multicast
= true;
500 wake_up(&drvr_priv
->sysioc_waitq
);
503 int brcmf_sendpkt(struct brcmf_pub
*drvr
, int ifidx
, struct sk_buff
*pktbuf
)
505 struct brcmf_info
*drvr_priv
= drvr
->info
;
508 if (!drvr
->up
|| (drvr
->busstate
== BRCMF_BUS_DOWN
))
511 /* Update multicast statistic */
512 if (pktbuf
->len
>= ETH_ALEN
) {
513 u8
*pktdata
= (u8
*) (pktbuf
->data
);
514 struct ethhdr
*eh
= (struct ethhdr
*)pktdata
;
516 if (is_multicast_ether_addr(eh
->h_dest
))
517 drvr
->tx_multicast
++;
518 if (ntohs(eh
->h_proto
) == ETH_P_PAE
)
519 atomic_inc(&drvr_priv
->pend_8021x_cnt
);
522 /* If the protocol uses a data header, apply it */
523 brcmf_proto_hdrpush(drvr
, ifidx
, pktbuf
);
525 /* Use bus module to send data frame */
526 return brcmf_sdbrcm_bus_txdata(drvr
->bus
, pktbuf
);
529 static int brcmf_netdev_start_xmit(struct sk_buff
*skb
, struct net_device
*net
)
532 struct brcmf_info
*drvr_priv
= *(struct brcmf_info
**) netdev_priv(net
);
535 brcmf_dbg(TRACE
, "Enter\n");
538 if (!drvr_priv
->pub
.up
|| (drvr_priv
->pub
.busstate
== BRCMF_BUS_DOWN
)) {
539 brcmf_dbg(ERROR
, "xmit rejected pub.up=%d busstate=%d\n",
540 drvr_priv
->pub
.up
, drvr_priv
->pub
.busstate
);
541 netif_stop_queue(net
);
545 ifidx
= brcmf_net2idx(drvr_priv
, net
);
546 if (ifidx
== BRCMF_BAD_IF
) {
547 brcmf_dbg(ERROR
, "bad ifidx %d\n", ifidx
);
548 netif_stop_queue(net
);
552 /* Make sure there's enough room for any header */
553 if (skb_headroom(skb
) < drvr_priv
->pub
.hdrlen
) {
554 struct sk_buff
*skb2
;
556 brcmf_dbg(INFO
, "%s: insufficient headroom\n",
557 brcmf_ifname(&drvr_priv
->pub
, ifidx
));
558 drvr_priv
->pub
.tx_realloc
++;
559 skb2
= skb_realloc_headroom(skb
, drvr_priv
->pub
.hdrlen
);
563 brcmf_dbg(ERROR
, "%s: skb_realloc_headroom failed\n",
564 brcmf_ifname(&drvr_priv
->pub
, ifidx
));
570 ret
= brcmf_sendpkt(&drvr_priv
->pub
, ifidx
, skb
);
574 drvr_priv
->pub
.dstats
.tx_dropped
++;
576 drvr_priv
->pub
.tx_packets
++;
578 /* Return ok: we always eat the packet */
582 void brcmf_txflowcontrol(struct brcmf_pub
*drvr
, int ifidx
, bool state
)
584 struct net_device
*net
;
585 struct brcmf_info
*drvr_priv
= drvr
->info
;
587 brcmf_dbg(TRACE
, "Enter\n");
590 net
= drvr_priv
->iflist
[ifidx
]->net
;
592 netif_stop_queue(net
);
594 netif_wake_queue(net
);
597 static int brcmf_host_event(struct brcmf_info
*drvr_priv
, int *ifidx
,
598 void *pktdata
, struct brcmf_event_msg
*event
,
603 bcmerror
= brcmf_c_host_event(drvr_priv
, ifidx
, pktdata
, event
, data
);
607 if (drvr_priv
->iflist
[*ifidx
]->net
)
608 brcmf_cfg80211_event(drvr_priv
->iflist
[*ifidx
]->net
,
614 void brcmf_rx_frame(struct brcmf_pub
*drvr
, int ifidx
, struct sk_buff
*skb
,
617 struct brcmf_info
*drvr_priv
= drvr
->info
;
621 struct sk_buff
*pnext
, *save_pktbuf
;
623 struct brcmf_if
*ifp
;
624 struct brcmf_event_msg event
;
626 brcmf_dbg(TRACE
, "Enter\n");
630 for (i
= 0; skb
&& i
< numpkt
; i
++, skb
= pnext
) {
635 /* Get the protocol, maintain skb around eth_type_trans()
636 * The main reason for this hack is for the limitation of
637 * Linux 2.4 where 'eth_type_trans' uses the
638 * 'net->hard_header_len'
639 * to perform skb_pull inside vs ETH_HLEN. Since to avoid
640 * coping of the packet coming from the network stack to add
641 * BDC, Hardware header etc, during network interface
643 * we set the 'net->hard_header_len' to ETH_HLEN + extra space
645 * for BDC, Hardware header etc. and not just the ETH_HLEN
650 ifp
= drvr_priv
->iflist
[ifidx
];
652 ifp
= drvr_priv
->iflist
[0];
655 skb
->protocol
= eth_type_trans(skb
, skb
->dev
);
657 if (skb
->pkt_type
== PACKET_MULTICAST
)
658 drvr_priv
->pub
.rx_multicast
++;
663 /* Strip header, count, deliver upward */
664 skb_pull(skb
, ETH_HLEN
);
666 /* Process special event packets and then discard them */
667 if (ntohs(skb
->protocol
) == ETH_P_LINK_CTL
)
668 brcmf_host_event(drvr_priv
, &ifidx
,
672 if (drvr_priv
->iflist
[ifidx
] &&
673 !drvr_priv
->iflist
[ifidx
]->state
)
674 ifp
= drvr_priv
->iflist
[ifidx
];
677 ifp
->net
->last_rx
= jiffies
;
679 drvr
->dstats
.rx_bytes
+= skb
->len
;
680 drvr
->rx_packets
++; /* Local count */
685 /* If the receive is not processed inside an ISR,
686 * the softirqd must be woken explicitly to service
687 * the NET_RX_SOFTIRQ. In 2.6 kernels, this is handled
688 * by netif_rx_ni(), but in earlier kernels, we need
695 void brcmf_txcomplete(struct brcmf_pub
*drvr
, struct sk_buff
*txp
, bool success
)
698 struct brcmf_info
*drvr_priv
= drvr
->info
;
702 brcmf_proto_hdrpull(drvr
, &ifidx
, txp
);
704 eh
= (struct ethhdr
*)(txp
->data
);
705 type
= ntohs(eh
->h_proto
);
707 if (type
== ETH_P_PAE
)
708 atomic_dec(&drvr_priv
->pend_8021x_cnt
);
712 static struct net_device_stats
*brcmf_netdev_get_stats(struct net_device
*net
)
714 struct brcmf_info
*drvr_priv
= *(struct brcmf_info
**) netdev_priv(net
);
715 struct brcmf_if
*ifp
;
718 brcmf_dbg(TRACE
, "Enter\n");
720 ifidx
= brcmf_net2idx(drvr_priv
, net
);
721 if (ifidx
== BRCMF_BAD_IF
)
724 ifp
= drvr_priv
->iflist
[ifidx
];
726 if (drvr_priv
->pub
.up
)
727 /* Use the protocol to get dongle stats */
728 brcmf_proto_dstats(&drvr_priv
->pub
);
730 /* Copy dongle stats to net device stats */
731 ifp
->stats
.rx_packets
= drvr_priv
->pub
.dstats
.rx_packets
;
732 ifp
->stats
.tx_packets
= drvr_priv
->pub
.dstats
.tx_packets
;
733 ifp
->stats
.rx_bytes
= drvr_priv
->pub
.dstats
.rx_bytes
;
734 ifp
->stats
.tx_bytes
= drvr_priv
->pub
.dstats
.tx_bytes
;
735 ifp
->stats
.rx_errors
= drvr_priv
->pub
.dstats
.rx_errors
;
736 ifp
->stats
.tx_errors
= drvr_priv
->pub
.dstats
.tx_errors
;
737 ifp
->stats
.rx_dropped
= drvr_priv
->pub
.dstats
.rx_dropped
;
738 ifp
->stats
.tx_dropped
= drvr_priv
->pub
.dstats
.tx_dropped
;
739 ifp
->stats
.multicast
= drvr_priv
->pub
.dstats
.multicast
;
744 /* Retrieve current toe component enables, which are kept
745 as a bitmap in toe_ol iovar */
746 static int brcmf_toe_get(struct brcmf_info
*drvr_priv
, int ifidx
, u32
*toe_ol
)
748 struct brcmf_ioctl ioc
;
752 memset(&ioc
, 0, sizeof(ioc
));
754 ioc
.cmd
= BRCMF_C_GET_VAR
;
756 ioc
.len
= (uint
) sizeof(buf
);
759 strcpy(buf
, "toe_ol");
760 ret
= brcmf_proto_ioctl(&drvr_priv
->pub
, ifidx
, &ioc
, ioc
.buf
, ioc
.len
);
762 /* Check for older dongle image that doesn't support toe_ol */
764 brcmf_dbg(ERROR
, "%s: toe not supported by device\n",
765 brcmf_ifname(&drvr_priv
->pub
, ifidx
));
769 brcmf_dbg(INFO
, "%s: could not get toe_ol: ret=%d\n",
770 brcmf_ifname(&drvr_priv
->pub
, ifidx
), ret
);
774 memcpy(toe_ol
, buf
, sizeof(u32
));
778 /* Set current toe component enables in toe_ol iovar,
779 and set toe global enable iovar */
780 static int brcmf_toe_set(struct brcmf_info
*drvr_priv
, int ifidx
, u32 toe_ol
)
782 struct brcmf_ioctl ioc
;
786 memset(&ioc
, 0, sizeof(ioc
));
788 ioc
.cmd
= BRCMF_C_SET_VAR
;
790 ioc
.len
= (uint
) sizeof(buf
);
793 /* Set toe_ol as requested */
795 strcpy(buf
, "toe_ol");
796 memcpy(&buf
[sizeof("toe_ol")], &toe_ol
, sizeof(u32
));
798 ret
= brcmf_proto_ioctl(&drvr_priv
->pub
, ifidx
, &ioc
, ioc
.buf
, ioc
.len
);
800 brcmf_dbg(ERROR
, "%s: could not set toe_ol: ret=%d\n",
801 brcmf_ifname(&drvr_priv
->pub
, ifidx
), ret
);
805 /* Enable toe globally only if any components are enabled. */
810 memcpy(&buf
[sizeof("toe")], &toe
, sizeof(u32
));
812 ret
= brcmf_proto_ioctl(&drvr_priv
->pub
, ifidx
, &ioc
, ioc
.buf
, ioc
.len
);
814 brcmf_dbg(ERROR
, "%s: could not set toe: ret=%d\n",
815 brcmf_ifname(&drvr_priv
->pub
, ifidx
), ret
);
822 static void brcmf_ethtool_get_drvinfo(struct net_device
*net
,
823 struct ethtool_drvinfo
*info
)
825 struct brcmf_info
*drvr_priv
= *(struct brcmf_info
**) netdev_priv(net
);
827 sprintf(info
->driver
, KBUILD_MODNAME
);
828 sprintf(info
->version
, "%lu", drvr_priv
->pub
.drv_version
);
829 sprintf(info
->fw_version
, "%s", BCM4329_FW_NAME
);
830 sprintf(info
->bus_info
, "%s",
831 dev_name(&brcmf_cfg80211_get_sdio_func()->dev
));
834 static struct ethtool_ops brcmf_ethtool_ops
= {
835 .get_drvinfo
= brcmf_ethtool_get_drvinfo
838 static int brcmf_ethtool(struct brcmf_info
*drvr_priv
, void __user
*uaddr
)
840 struct ethtool_drvinfo info
;
841 char drvname
[sizeof(info
.driver
)];
843 struct ethtool_value edata
;
844 u32 toe_cmpnt
, csum_dir
;
847 brcmf_dbg(TRACE
, "Enter\n");
849 /* all ethtool calls start with a cmd word */
850 if (copy_from_user(&cmd
, uaddr
, sizeof(u32
)))
854 case ETHTOOL_GDRVINFO
:
855 /* Copy out any request driver name */
856 if (copy_from_user(&info
, uaddr
, sizeof(info
)))
858 strncpy(drvname
, info
.driver
, sizeof(info
.driver
));
859 drvname
[sizeof(info
.driver
) - 1] = '\0';
861 /* clear struct for return */
862 memset(&info
, 0, sizeof(info
));
865 /* if requested, identify ourselves */
866 if (strcmp(drvname
, "?dhd") == 0) {
867 sprintf(info
.driver
, "dhd");
868 strcpy(info
.version
, BRCMF_VERSION_STR
);
871 /* otherwise, require dongle to be up */
872 else if (!drvr_priv
->pub
.up
) {
873 brcmf_dbg(ERROR
, "dongle is not up\n");
877 /* finally, report dongle driver type */
878 else if (drvr_priv
->pub
.iswl
)
879 sprintf(info
.driver
, "wl");
881 sprintf(info
.driver
, "xx");
883 sprintf(info
.version
, "%lu", drvr_priv
->pub
.drv_version
);
884 if (copy_to_user(uaddr
, &info
, sizeof(info
)))
886 brcmf_dbg(CTL
, "given %*s, returning %s\n",
887 (int)sizeof(drvname
), drvname
, info
.driver
);
890 /* Get toe offload components from dongle */
891 case ETHTOOL_GRXCSUM
:
892 case ETHTOOL_GTXCSUM
:
893 ret
= brcmf_toe_get(drvr_priv
, 0, &toe_cmpnt
);
898 (cmd
== ETHTOOL_GTXCSUM
) ? TOE_TX_CSUM_OL
: TOE_RX_CSUM_OL
;
901 edata
.data
= (toe_cmpnt
& csum_dir
) ? 1 : 0;
903 if (copy_to_user(uaddr
, &edata
, sizeof(edata
)))
907 /* Set toe offload components in dongle */
908 case ETHTOOL_SRXCSUM
:
909 case ETHTOOL_STXCSUM
:
910 if (copy_from_user(&edata
, uaddr
, sizeof(edata
)))
913 /* Read the current settings, update and write back */
914 ret
= brcmf_toe_get(drvr_priv
, 0, &toe_cmpnt
);
919 (cmd
== ETHTOOL_STXCSUM
) ? TOE_TX_CSUM_OL
: TOE_RX_CSUM_OL
;
922 toe_cmpnt
|= csum_dir
;
924 toe_cmpnt
&= ~csum_dir
;
926 ret
= brcmf_toe_set(drvr_priv
, 0, toe_cmpnt
);
930 /* If setting TX checksum mode, tell Linux the new mode */
931 if (cmd
== ETHTOOL_STXCSUM
) {
933 drvr_priv
->iflist
[0]->net
->features
|=
936 drvr_priv
->iflist
[0]->net
->features
&=
949 static int brcmf_netdev_ioctl_entry(struct net_device
*net
, struct ifreq
*ifr
,
952 struct brcmf_info
*drvr_priv
= *(struct brcmf_info
**) netdev_priv(net
);
953 struct brcmf_c_ioctl ioc
;
961 ifidx
= brcmf_net2idx(drvr_priv
, net
);
962 brcmf_dbg(TRACE
, "ifidx %d, cmd 0x%04x\n", ifidx
, cmd
);
964 if (ifidx
== BRCMF_BAD_IF
)
967 if (cmd
== SIOCETHTOOL
)
968 return brcmf_ethtool(drvr_priv
, ifr
->ifr_data
);
970 if (cmd
!= SIOCDEVPRIVATE
)
973 memset(&ioc
, 0, sizeof(ioc
));
975 /* Copy the ioc control structure part of ioctl request */
976 if (copy_from_user(&ioc
, ifr
->ifr_data
, sizeof(struct brcmf_ioctl
))) {
981 /* Copy out any buffer passed */
983 buflen
= min_t(int, ioc
.len
, BRCMF_IOCTL_MAXLEN
);
984 /* optimization for direct ioctl calls from kernel */
986 if (segment_eq(get_fs(), KERNEL_DS)) {
991 buf
= kmalloc(buflen
, GFP_ATOMIC
);
996 if (copy_from_user(buf
, ioc
.buf
, buflen
)) {
1003 /* To differentiate read 4 more byes */
1004 if ((copy_from_user(&driver
, (char __user
*)ifr
->ifr_data
+
1005 sizeof(struct brcmf_ioctl
), sizeof(uint
)) != 0)) {
1010 if (!capable(CAP_NET_ADMIN
)) {
1015 /* check for local brcmf ioctl and handle it */
1016 if (driver
== BRCMF_IOCTL_MAGIC
) {
1017 bcmerror
= brcmf_c_ioctl((void *)&drvr_priv
->pub
, &ioc
,
1020 drvr_priv
->pub
.bcmerror
= bcmerror
;
1024 /* send to dongle (must be up, and wl) */
1025 if ((drvr_priv
->pub
.busstate
!= BRCMF_BUS_DATA
)) {
1026 brcmf_dbg(ERROR
, "DONGLE_DOWN\n");
1031 if (!drvr_priv
->pub
.iswl
) {
1037 * Intercept BRCMF_C_SET_KEY IOCTL - serialize M4 send and
1038 * set key IOCTL to prevent M4 encryption.
1040 is_set_key_cmd
= ((ioc
.cmd
== BRCMF_C_SET_KEY
) ||
1041 ((ioc
.cmd
== BRCMF_C_SET_VAR
) &&
1042 !(strncmp("wsec_key", ioc
.buf
, 9))) ||
1043 ((ioc
.cmd
== BRCMF_C_SET_VAR
) &&
1044 !(strncmp("bsscfg:wsec_key", ioc
.buf
, 15))));
1046 brcmf_netdev_wait_pend8021x(net
);
1048 bcmerror
= brcmf_proto_ioctl(&drvr_priv
->pub
, ifidx
,
1049 (struct brcmf_ioctl
*)&ioc
, buf
, buflen
);
1052 if (!bcmerror
&& buf
&& ioc
.buf
) {
1053 if (copy_to_user(ioc
.buf
, buf
, buflen
))
1065 static int brcmf_netdev_stop(struct net_device
*net
)
1067 struct brcmf_info
*drvr_priv
= *(struct brcmf_info
**) netdev_priv(net
);
1069 brcmf_dbg(TRACE
, "Enter\n");
1070 brcmf_cfg80211_down();
1071 if (drvr_priv
->pub
.up
== 0)
1074 /* Set state and stop OS transmissions */
1075 drvr_priv
->pub
.up
= 0;
1076 netif_stop_queue(net
);
1081 static int brcmf_netdev_open(struct net_device
*net
)
1083 struct brcmf_info
*drvr_priv
= *(struct brcmf_info
**) netdev_priv(net
);
1085 int ifidx
= brcmf_net2idx(drvr_priv
, net
);
1088 brcmf_dbg(TRACE
, "ifidx %d\n", ifidx
);
1090 if (ifidx
== 0) { /* do it only for primary eth0 */
1092 /* try to bring up bus */
1093 ret
= brcmf_bus_start(&drvr_priv
->pub
);
1095 brcmf_dbg(ERROR
, "failed with code %d\n", ret
);
1098 atomic_set(&drvr_priv
->pend_8021x_cnt
, 0);
1100 memcpy(net
->dev_addr
, drvr_priv
->pub
.mac
, ETH_ALEN
);
1102 /* Get current TOE mode from dongle */
1103 if (brcmf_toe_get(drvr_priv
, ifidx
, &toe_ol
) >= 0
1104 && (toe_ol
& TOE_TX_CSUM_OL
) != 0)
1105 drvr_priv
->iflist
[ifidx
]->net
->features
|=
1108 drvr_priv
->iflist
[ifidx
]->net
->features
&=
1111 /* Allow transmit calls */
1112 netif_start_queue(net
);
1113 drvr_priv
->pub
.up
= 1;
1114 if (unlikely(brcmf_cfg80211_up())) {
1115 brcmf_dbg(ERROR
, "failed to bring up cfg80211\n");
1123 brcmf_add_if(struct brcmf_info
*drvr_priv
, int ifidx
, struct net_device
*net
,
1124 char *name
, u8
*mac_addr
, u32 flags
, u8 bssidx
)
1126 struct brcmf_if
*ifp
;
1128 brcmf_dbg(TRACE
, "idx %d, handle->%p\n", ifidx
, net
);
1130 ifp
= drvr_priv
->iflist
[ifidx
];
1132 ifp
= kmalloc(sizeof(struct brcmf_if
), GFP_ATOMIC
);
1134 brcmf_dbg(ERROR
, "OOM - struct brcmf_if\n");
1139 memset(ifp
, 0, sizeof(struct brcmf_if
));
1140 ifp
->info
= drvr_priv
;
1141 drvr_priv
->iflist
[ifidx
] = ifp
;
1142 strlcpy(ifp
->name
, name
, IFNAMSIZ
);
1143 if (mac_addr
!= NULL
)
1144 memcpy(&ifp
->mac_addr
, mac_addr
, ETH_ALEN
);
1147 ifp
->state
= BRCMF_E_IF_ADD
;
1149 wake_up(&drvr_priv
->sysioc_waitq
);
1156 void brcmf_del_if(struct brcmf_info
*drvr_priv
, int ifidx
)
1158 struct brcmf_if
*ifp
;
1160 brcmf_dbg(TRACE
, "idx %d\n", ifidx
);
1162 ifp
= drvr_priv
->iflist
[ifidx
];
1164 brcmf_dbg(ERROR
, "Null interface\n");
1168 ifp
->state
= BRCMF_E_IF_DEL
;
1170 wake_up(&drvr_priv
->sysioc_waitq
);
1173 struct brcmf_pub
*brcmf_attach(struct brcmf_bus
*bus
, uint bus_hdrlen
)
1175 struct brcmf_info
*drvr_priv
= NULL
;
1176 struct net_device
*net
;
1178 brcmf_dbg(TRACE
, "Enter\n");
1180 /* Allocate etherdev, including space for private structure */
1181 net
= alloc_etherdev(sizeof(drvr_priv
));
1183 brcmf_dbg(ERROR
, "OOM - alloc_etherdev\n");
1187 /* Allocate primary brcmf_info */
1188 drvr_priv
= kzalloc(sizeof(struct brcmf_info
), GFP_ATOMIC
);
1190 brcmf_dbg(ERROR
, "OOM - alloc brcmf_info\n");
1195 * Save the brcmf_info into the priv
1197 memcpy(netdev_priv(net
), &drvr_priv
, sizeof(drvr_priv
));
1199 /* Set network interface name if it was provided as module parameter */
1200 if (iface_name
[0]) {
1203 strncpy(net
->name
, iface_name
, IFNAMSIZ
);
1204 net
->name
[IFNAMSIZ
- 1] = 0;
1205 len
= strlen(net
->name
);
1206 ch
= net
->name
[len
- 1];
1207 if ((ch
> '9' || ch
< '0') && (len
< IFNAMSIZ
- 2))
1208 strcat(net
->name
, "%d");
1211 if (brcmf_add_if(drvr_priv
, 0, net
, net
->name
, NULL
, 0, 0) ==
1215 net
->netdev_ops
= NULL
;
1216 mutex_init(&drvr_priv
->proto_block
);
1218 /* Link to info module */
1219 drvr_priv
->pub
.info
= drvr_priv
;
1221 /* Link to bus module */
1222 drvr_priv
->pub
.bus
= bus
;
1223 drvr_priv
->pub
.hdrlen
= bus_hdrlen
;
1225 /* Attach and link in the protocol */
1226 if (brcmf_proto_attach(&drvr_priv
->pub
) != 0) {
1227 brcmf_dbg(ERROR
, "brcmf_prot_attach failed\n");
1231 /* Attach and link in the cfg80211 */
1232 if (unlikely(brcmf_cfg80211_attach(net
, &drvr_priv
->pub
))) {
1233 brcmf_dbg(ERROR
, "wl_cfg80211_attach failed\n");
1238 init_waitqueue_head(&drvr_priv
->sysioc_waitq
);
1239 drvr_priv
->sysioc_tsk
= kthread_run(_brcmf_sysioc_thread
,
1240 drvr_priv
, "_brcmf_sysioc");
1241 if (IS_ERR(drvr_priv
->sysioc_tsk
)) {
1243 "_brcmf_sysioc thread failed to start\n");
1244 drvr_priv
->sysioc_tsk
= NULL
;
1247 drvr_priv
->sysioc_tsk
= NULL
;
1250 * Save the brcmf_info into the priv
1252 memcpy(netdev_priv(net
), &drvr_priv
, sizeof(drvr_priv
));
1254 return &drvr_priv
->pub
;
1260 brcmf_detach(&drvr_priv
->pub
);
1265 int brcmf_bus_start(struct brcmf_pub
*drvr
)
1268 struct brcmf_info
*drvr_priv
= drvr
->info
;
1269 /* Room for "event_msgs" + '\0' + bitvec */
1270 char iovbuf
[BRCMF_EVENTING_MASK_LEN
+ 12];
1272 brcmf_dbg(TRACE
, "\n");
1274 /* Bring up the bus */
1275 ret
= brcmf_sdbrcm_bus_init(&drvr_priv
->pub
, true);
1277 brcmf_dbg(ERROR
, "brcmf_sdbrcm_bus_init failed %d\n", ret
);
1281 /* If bus is not ready, can't come up */
1282 if (drvr_priv
->pub
.busstate
!= BRCMF_BUS_DATA
) {
1283 brcmf_dbg(ERROR
, "failed bus is not ready\n");
1287 brcmu_mkiovar("event_msgs", drvr
->eventmask
, BRCMF_EVENTING_MASK_LEN
,
1288 iovbuf
, sizeof(iovbuf
));
1289 brcmf_proto_cdc_query_ioctl(drvr
, 0, BRCMF_C_GET_VAR
, iovbuf
,
1291 memcpy(drvr
->eventmask
, iovbuf
, BRCMF_EVENTING_MASK_LEN
);
1293 setbit(drvr
->eventmask
, BRCMF_E_SET_SSID
);
1294 setbit(drvr
->eventmask
, BRCMF_E_PRUNE
);
1295 setbit(drvr
->eventmask
, BRCMF_E_AUTH
);
1296 setbit(drvr
->eventmask
, BRCMF_E_REASSOC
);
1297 setbit(drvr
->eventmask
, BRCMF_E_REASSOC_IND
);
1298 setbit(drvr
->eventmask
, BRCMF_E_DEAUTH_IND
);
1299 setbit(drvr
->eventmask
, BRCMF_E_DISASSOC_IND
);
1300 setbit(drvr
->eventmask
, BRCMF_E_DISASSOC
);
1301 setbit(drvr
->eventmask
, BRCMF_E_JOIN
);
1302 setbit(drvr
->eventmask
, BRCMF_E_ASSOC_IND
);
1303 setbit(drvr
->eventmask
, BRCMF_E_PSK_SUP
);
1304 setbit(drvr
->eventmask
, BRCMF_E_LINK
);
1305 setbit(drvr
->eventmask
, BRCMF_E_NDIS_LINK
);
1306 setbit(drvr
->eventmask
, BRCMF_E_MIC_ERROR
);
1307 setbit(drvr
->eventmask
, BRCMF_E_PMKID_CACHE
);
1308 setbit(drvr
->eventmask
, BRCMF_E_TXFAIL
);
1309 setbit(drvr
->eventmask
, BRCMF_E_JOIN_START
);
1310 setbit(drvr
->eventmask
, BRCMF_E_SCAN_COMPLETE
);
1312 /* enable dongle roaming event */
1314 drvr
->pktfilter_count
= 1;
1315 /* Setup filter to allow only unicast */
1316 drvr
->pktfilter
[0] = "100 0 0 0 0x01 0x00";
1318 /* Bus is ready, do any protocol initialization */
1319 ret
= brcmf_proto_init(&drvr_priv
->pub
);
1326 static struct net_device_ops brcmf_netdev_ops_pri
= {
1327 .ndo_open
= brcmf_netdev_open
,
1328 .ndo_stop
= brcmf_netdev_stop
,
1329 .ndo_get_stats
= brcmf_netdev_get_stats
,
1330 .ndo_do_ioctl
= brcmf_netdev_ioctl_entry
,
1331 .ndo_start_xmit
= brcmf_netdev_start_xmit
,
1332 .ndo_set_mac_address
= brcmf_netdev_set_mac_address
,
1333 .ndo_set_multicast_list
= brcmf_netdev_set_multicast_list
1336 int brcmf_net_attach(struct brcmf_pub
*drvr
, int ifidx
)
1338 struct brcmf_info
*drvr_priv
= drvr
->info
;
1339 struct net_device
*net
;
1340 u8 temp_addr
[ETH_ALEN
] = {
1341 0x00, 0x90, 0x4c, 0x11, 0x22, 0x33};
1343 brcmf_dbg(TRACE
, "ifidx %d\n", ifidx
);
1345 net
= drvr_priv
->iflist
[ifidx
]->net
;
1346 net
->netdev_ops
= &brcmf_netdev_ops_pri
;
1349 * We have to use the primary MAC for virtual interfaces
1352 /* for virtual interfaces use the primary MAC */
1353 memcpy(temp_addr
, drvr_priv
->pub
.mac
, ETH_ALEN
);
1358 brcmf_dbg(TRACE
, "ACCESS POINT MAC:\n");
1359 /* ACCESSPOINT INTERFACE CASE */
1360 temp_addr
[0] |= 0X02; /* set bit 2 ,
1361 - Locally Administered address */
1364 net
->hard_header_len
= ETH_HLEN
+ drvr_priv
->pub
.hdrlen
;
1365 net
->ethtool_ops
= &brcmf_ethtool_ops
;
1367 drvr_priv
->pub
.rxsz
= net
->mtu
+ net
->hard_header_len
+
1368 drvr_priv
->pub
.hdrlen
;
1370 memcpy(net
->dev_addr
, temp_addr
, ETH_ALEN
);
1372 if (register_netdev(net
) != 0) {
1373 brcmf_dbg(ERROR
, "couldn't register the net device\n");
1377 brcmf_dbg(INFO
, "%s: Broadcom Dongle Host Driver\n", net
->name
);
1382 net
->netdev_ops
= NULL
;
1386 static void brcmf_bus_detach(struct brcmf_pub
*drvr
)
1388 struct brcmf_info
*drvr_priv
;
1390 brcmf_dbg(TRACE
, "Enter\n");
1393 drvr_priv
= drvr
->info
;
1395 /* Stop the protocol module */
1396 brcmf_proto_stop(&drvr_priv
->pub
);
1398 /* Stop the bus module */
1399 brcmf_sdbrcm_bus_stop(drvr_priv
->pub
.bus
, true);
1404 void brcmf_detach(struct brcmf_pub
*drvr
)
1406 struct brcmf_info
*drvr_priv
;
1408 brcmf_dbg(TRACE
, "Enter\n");
1411 drvr_priv
= drvr
->info
;
1413 struct brcmf_if
*ifp
;
1416 for (i
= 1; i
< BRCMF_MAX_IFS
; i
++)
1417 if (drvr_priv
->iflist
[i
])
1418 brcmf_del_if(drvr_priv
, i
);
1420 ifp
= drvr_priv
->iflist
[0];
1421 if (ifp
->net
->netdev_ops
== &brcmf_netdev_ops_pri
) {
1422 brcmf_netdev_stop(ifp
->net
);
1423 unregister_netdev(ifp
->net
);
1426 if (drvr_priv
->sysioc_tsk
) {
1427 send_sig(SIGTERM
, drvr_priv
->sysioc_tsk
, 1);
1428 kthread_stop(drvr_priv
->sysioc_tsk
);
1429 drvr_priv
->sysioc_tsk
= NULL
;
1432 brcmf_bus_detach(drvr
);
1435 brcmf_proto_detach(drvr
);
1437 brcmf_cfg80211_detach();
1439 free_netdev(ifp
->net
);
1446 static void __exit
brcmf_module_cleanup(void)
1448 brcmf_dbg(TRACE
, "Enter\n");
1450 brcmf_bus_unregister();
1453 static int __init
brcmf_module_init(void)
1457 brcmf_dbg(TRACE
, "Enter\n");
1459 error
= brcmf_bus_register();
1462 brcmf_dbg(ERROR
, "brcmf_bus_register failed\n");
1471 module_init(brcmf_module_init
);
1472 module_exit(brcmf_module_cleanup
);
1474 int brcmf_os_proto_block(struct brcmf_pub
*drvr
)
1476 struct brcmf_info
*drvr_priv
= drvr
->info
;
1479 mutex_lock(&drvr_priv
->proto_block
);
1485 int brcmf_os_proto_unblock(struct brcmf_pub
*drvr
)
1487 struct brcmf_info
*drvr_priv
= drvr
->info
;
1490 mutex_unlock(&drvr_priv
->proto_block
);
1497 static int brcmf_get_pend_8021x_cnt(struct brcmf_info
*drvr_priv
)
1499 return atomic_read(&drvr_priv
->pend_8021x_cnt
);
1502 #define MAX_WAIT_FOR_8021X_TX 10
1504 int brcmf_netdev_wait_pend8021x(struct net_device
*dev
)
1506 struct brcmf_info
*drvr_priv
= *(struct brcmf_info
**)netdev_priv(dev
);
1507 int timeout
= 10 * HZ
/ 1000;
1508 int ntimes
= MAX_WAIT_FOR_8021X_TX
;
1509 int pend
= brcmf_get_pend_8021x_cnt(drvr_priv
);
1511 while (ntimes
&& pend
) {
1513 set_current_state(TASK_INTERRUPTIBLE
);
1514 schedule_timeout(timeout
);
1515 set_current_state(TASK_RUNNING
);
1518 pend
= brcmf_get_pend_8021x_cnt(drvr_priv
);
1524 int brcmf_write_to_file(struct brcmf_pub
*drvr
, u8
*buf
, int size
)
1528 mm_segment_t old_fs
;
1531 /* change to KERNEL_DS address limit */
1535 /* open file to write */
1536 fp
= filp_open("/tmp/mem_dump", O_WRONLY
| O_CREAT
, 0640);
1538 brcmf_dbg(ERROR
, "open file error\n");
1543 /* Write buf to file */
1544 fp
->f_op
->write(fp
, buf
, size
, &pos
);
1547 /* free buf before return */
1549 /* close file before return */
1551 filp_close(fp
, current
->files
);
1552 /* restore previous address limit */