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 <linux/module.h>
35 #include <net/cfg80211.h>
36 #include <net/rtnetlink.h>
38 #include <brcmu_utils.h>
39 #include <brcmu_wifi.h>
43 #include "dhd_proto.h"
45 #include "wl_cfg80211.h"
47 MODULE_AUTHOR("Broadcom Corporation");
48 MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN fullmac driver.");
49 MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN fullmac cards");
50 MODULE_LICENSE("Dual BSD/GPL");
53 /* Interface control information */
55 struct brcmf_info
*info
; /* back pointer to brcmf_info */
56 /* OS/stack specifics */
57 struct net_device
*ndev
;
58 struct net_device_stats stats
;
59 int idx
; /* iface idx in dongle */
60 u8 mac_addr
[ETH_ALEN
]; /* assigned MAC address */
63 /* Local private structure (extension of pub) */
67 /* OS/stack specifics */
68 struct brcmf_if
*iflist
[BRCMF_MAX_IFS
];
70 struct mutex proto_block
;
72 struct work_struct setmacaddr_work
;
73 struct work_struct multicast_work
;
74 u8 macvalue
[ETH_ALEN
];
75 atomic_t pend_8021x_cnt
;
79 int brcmf_msg_level
= BRCMF_ERROR_VAL
;
80 module_param(brcmf_msg_level
, int, 0);
82 int brcmf_ifname2idx(struct brcmf_info
*drvr_priv
, char *name
)
84 int i
= BRCMF_MAX_IFS
;
87 if (name
== NULL
|| *name
== '\0')
91 ifp
= drvr_priv
->iflist
[i
];
92 if (ifp
&& !strncmp(ifp
->ndev
->name
, name
, IFNAMSIZ
))
96 brcmf_dbg(TRACE
, "return idx %d for \"%s\"\n", i
, name
);
98 return i
; /* default - the primary interface */
101 char *brcmf_ifname(struct brcmf_pub
*drvr
, int ifidx
)
103 struct brcmf_info
*drvr_priv
= drvr
->info
;
105 if (ifidx
< 0 || ifidx
>= BRCMF_MAX_IFS
) {
106 brcmf_dbg(ERROR
, "ifidx %d out of range\n", ifidx
);
110 if (drvr_priv
->iflist
[ifidx
] == NULL
) {
111 brcmf_dbg(ERROR
, "null i/f %d\n", ifidx
);
115 if (drvr_priv
->iflist
[ifidx
]->ndev
)
116 return drvr_priv
->iflist
[ifidx
]->ndev
->name
;
121 static void _brcmf_set_multicast_list(struct work_struct
*work
)
123 struct net_device
*ndev
;
124 struct netdev_hw_addr
*ha
;
127 __le32 dcmd_le_value
;
129 struct brcmf_dcmd dcmd
;
134 struct brcmf_info
*drvr_priv
= container_of(work
, struct brcmf_info
,
137 ndev
= drvr_priv
->iflist
[0]->ndev
;
138 cnt
= netdev_mc_count(ndev
);
140 /* Determine initial value of allmulti flag */
141 dcmd_value
= (ndev
->flags
& IFF_ALLMULTI
) ? true : false;
143 /* Send down the multicast list first. */
145 buflen
= sizeof("mcast_list") + sizeof(cnt
) + (cnt
* ETH_ALEN
);
146 bufp
= buf
= kmalloc(buflen
, GFP_ATOMIC
);
150 strcpy(bufp
, "mcast_list");
151 bufp
+= strlen("mcast_list") + 1;
153 cnt_le
= cpu_to_le32(cnt
);
154 memcpy(bufp
, &cnt_le
, sizeof(cnt
));
155 bufp
+= sizeof(cnt_le
);
157 netdev_for_each_mc_addr(ha
, ndev
) {
160 memcpy(bufp
, ha
->addr
, ETH_ALEN
);
165 memset(&dcmd
, 0, sizeof(dcmd
));
166 dcmd
.cmd
= BRCMF_C_SET_VAR
;
171 ret
= brcmf_proto_dcmd(&drvr_priv
->pub
, 0, &dcmd
, dcmd
.len
);
173 brcmf_dbg(ERROR
, "%s: set mcast_list failed, cnt %d\n",
174 brcmf_ifname(&drvr_priv
->pub
, 0), cnt
);
175 dcmd_value
= cnt
? true : dcmd_value
;
180 /* Now send the allmulti setting. This is based on the setting in the
181 * net_device flags, but might be modified above to be turned on if we
182 * were trying to set some addresses and dongle rejected it...
185 buflen
= sizeof("allmulti") + sizeof(dcmd_value
);
186 buf
= kmalloc(buflen
, GFP_ATOMIC
);
190 dcmd_le_value
= cpu_to_le32(dcmd_value
);
193 ("allmulti", (void *)&dcmd_le_value
,
194 sizeof(dcmd_le_value
), buf
, buflen
)) {
195 brcmf_dbg(ERROR
, "%s: mkiovar failed for allmulti, datalen %d buflen %u\n",
196 brcmf_ifname(&drvr_priv
->pub
, 0),
197 (int)sizeof(dcmd_value
), buflen
);
202 memset(&dcmd
, 0, sizeof(dcmd
));
203 dcmd
.cmd
= BRCMF_C_SET_VAR
;
208 ret
= brcmf_proto_dcmd(&drvr_priv
->pub
, 0, &dcmd
, dcmd
.len
);
210 brcmf_dbg(ERROR
, "%s: set allmulti %d failed\n",
211 brcmf_ifname(&drvr_priv
->pub
, 0),
212 le32_to_cpu(dcmd_le_value
));
217 /* Finally, pick up the PROMISC flag as well, like the NIC
220 dcmd_value
= (ndev
->flags
& IFF_PROMISC
) ? true : false;
221 dcmd_le_value
= cpu_to_le32(dcmd_value
);
223 memset(&dcmd
, 0, sizeof(dcmd
));
224 dcmd
.cmd
= BRCMF_C_SET_PROMISC
;
225 dcmd
.buf
= &dcmd_le_value
;
226 dcmd
.len
= sizeof(dcmd_le_value
);
229 ret
= brcmf_proto_dcmd(&drvr_priv
->pub
, 0, &dcmd
, dcmd
.len
);
231 brcmf_dbg(ERROR
, "%s: set promisc %d failed\n",
232 brcmf_ifname(&drvr_priv
->pub
, 0),
233 le32_to_cpu(dcmd_le_value
));
238 _brcmf_set_mac_address(struct work_struct
*work
)
241 struct brcmf_dcmd dcmd
;
244 struct brcmf_info
*drvr_priv
= container_of(work
, struct brcmf_info
,
247 brcmf_dbg(TRACE
, "enter\n");
248 if (!brcmf_c_mkiovar("cur_etheraddr", (char *)drvr_priv
->macvalue
,
249 ETH_ALEN
, buf
, 32)) {
250 brcmf_dbg(ERROR
, "%s: mkiovar failed for cur_etheraddr\n",
251 brcmf_ifname(&drvr_priv
->pub
, 0));
254 memset(&dcmd
, 0, sizeof(dcmd
));
255 dcmd
.cmd
= BRCMF_C_SET_VAR
;
260 ret
= brcmf_proto_dcmd(&drvr_priv
->pub
, 0, &dcmd
, dcmd
.len
);
262 brcmf_dbg(ERROR
, "%s: set cur_etheraddr failed\n",
263 brcmf_ifname(&drvr_priv
->pub
, 0));
265 memcpy(drvr_priv
->iflist
[0]->ndev
->dev_addr
,
266 drvr_priv
->macvalue
, ETH_ALEN
);
271 static int brcmf_netdev_set_mac_address(struct net_device
*ndev
, void *addr
)
273 struct brcmf_if
*ifp
= netdev_priv(ndev
);
274 struct brcmf_info
*drvr_priv
= ifp
->info
;
275 struct sockaddr
*sa
= (struct sockaddr
*)addr
;
277 memcpy(&drvr_priv
->macvalue
, sa
->sa_data
, ETH_ALEN
);
278 schedule_work(&drvr_priv
->setmacaddr_work
);
282 static void brcmf_netdev_set_multicast_list(struct net_device
*ndev
)
284 struct brcmf_if
*ifp
= netdev_priv(ndev
);
285 struct brcmf_info
*drvr_priv
= ifp
->info
;
287 schedule_work(&drvr_priv
->multicast_work
);
290 int brcmf_sendpkt(struct brcmf_pub
*drvr
, int ifidx
, struct sk_buff
*pktbuf
)
292 struct brcmf_info
*drvr_priv
= drvr
->info
;
295 if (!drvr
->up
|| (drvr
->bus_if
->state
== BRCMF_BUS_DOWN
))
298 /* Update multicast statistic */
299 if (pktbuf
->len
>= ETH_ALEN
) {
300 u8
*pktdata
= (u8
*) (pktbuf
->data
);
301 struct ethhdr
*eh
= (struct ethhdr
*)pktdata
;
303 if (is_multicast_ether_addr(eh
->h_dest
))
304 drvr
->tx_multicast
++;
305 if (ntohs(eh
->h_proto
) == ETH_P_PAE
)
306 atomic_inc(&drvr_priv
->pend_8021x_cnt
);
309 /* If the protocol uses a data header, apply it */
310 brcmf_proto_hdrpush(drvr
, ifidx
, pktbuf
);
312 /* Use bus module to send data frame */
313 return brcmf_sdbrcm_bus_txdata(drvr
->bus
, pktbuf
);
316 static int brcmf_netdev_start_xmit(struct sk_buff
*skb
, struct net_device
*ndev
)
319 struct brcmf_if
*ifp
= netdev_priv(ndev
);
320 struct brcmf_info
*drvr_priv
= ifp
->info
;
322 brcmf_dbg(TRACE
, "Enter\n");
325 if (!drvr_priv
->pub
.up
||
326 (drvr_priv
->pub
.bus_if
->state
== BRCMF_BUS_DOWN
)) {
327 brcmf_dbg(ERROR
, "xmit rejected pub.up=%d state=%d\n",
329 drvr_priv
->pub
.bus_if
->state
);
330 netif_stop_queue(ndev
);
334 if (!drvr_priv
->iflist
[ifp
->idx
]) {
335 brcmf_dbg(ERROR
, "bad ifidx %d\n", ifp
->idx
);
336 netif_stop_queue(ndev
);
340 /* Make sure there's enough room for any header */
341 if (skb_headroom(skb
) < drvr_priv
->pub
.hdrlen
) {
342 struct sk_buff
*skb2
;
344 brcmf_dbg(INFO
, "%s: insufficient headroom\n",
345 brcmf_ifname(&drvr_priv
->pub
, ifp
->idx
));
346 drvr_priv
->pub
.tx_realloc
++;
347 skb2
= skb_realloc_headroom(skb
, drvr_priv
->pub
.hdrlen
);
351 brcmf_dbg(ERROR
, "%s: skb_realloc_headroom failed\n",
352 brcmf_ifname(&drvr_priv
->pub
, ifp
->idx
));
358 ret
= brcmf_sendpkt(&drvr_priv
->pub
, ifp
->idx
, skb
);
362 drvr_priv
->pub
.dstats
.tx_dropped
++;
364 drvr_priv
->pub
.tx_packets
++;
366 /* Return ok: we always eat the packet */
370 void brcmf_txflowcontrol(struct brcmf_pub
*drvr
, int ifidx
, bool state
)
372 struct net_device
*ndev
;
373 struct brcmf_info
*drvr_priv
= drvr
->info
;
375 brcmf_dbg(TRACE
, "Enter\n");
378 ndev
= drvr_priv
->iflist
[ifidx
]->ndev
;
380 netif_stop_queue(ndev
);
382 netif_wake_queue(ndev
);
385 static int brcmf_host_event(struct brcmf_info
*drvr_priv
, int *ifidx
,
386 void *pktdata
, struct brcmf_event_msg
*event
,
391 bcmerror
= brcmf_c_host_event(drvr_priv
, ifidx
, pktdata
, event
, data
);
395 if (drvr_priv
->iflist
[*ifidx
]->ndev
)
396 brcmf_cfg80211_event(drvr_priv
->iflist
[*ifidx
]->ndev
,
402 void brcmf_rx_frame(struct brcmf_pub
*drvr
, int ifidx
,
403 struct sk_buff_head
*skb_list
)
405 struct brcmf_info
*drvr_priv
= drvr
->info
;
409 struct sk_buff
*skb
, *pnext
;
410 struct brcmf_if
*ifp
;
411 struct brcmf_event_msg event
;
413 brcmf_dbg(TRACE
, "Enter\n");
415 skb_queue_walk_safe(skb_list
, skb
, pnext
) {
416 skb_unlink(skb
, skb_list
);
418 /* Get the protocol, maintain skb around eth_type_trans()
419 * The main reason for this hack is for the limitation of
420 * Linux 2.4 where 'eth_type_trans' uses the
421 * 'net->hard_header_len'
422 * to perform skb_pull inside vs ETH_HLEN. Since to avoid
423 * coping of the packet coming from the network stack to add
424 * BDC, Hardware header etc, during network interface
426 * we set the 'net->hard_header_len' to ETH_HLEN + extra space
428 * for BDC, Hardware header etc. and not just the ETH_HLEN
433 ifp
= drvr_priv
->iflist
[ifidx
];
435 ifp
= drvr_priv
->iflist
[0];
437 if (!ifp
|| !ifp
->ndev
||
438 ifp
->ndev
->reg_state
!= NETREG_REGISTERED
) {
439 brcmu_pkt_buf_free_skb(skb
);
443 skb
->dev
= ifp
->ndev
;
444 skb
->protocol
= eth_type_trans(skb
, skb
->dev
);
446 if (skb
->pkt_type
== PACKET_MULTICAST
)
447 drvr_priv
->pub
.rx_multicast
++;
452 /* Strip header, count, deliver upward */
453 skb_pull(skb
, ETH_HLEN
);
455 /* Process special event packets and then discard them */
456 if (ntohs(skb
->protocol
) == ETH_P_LINK_CTL
)
457 brcmf_host_event(drvr_priv
, &ifidx
,
461 if (drvr_priv
->iflist
[ifidx
]) {
462 ifp
= drvr_priv
->iflist
[ifidx
];
463 ifp
->ndev
->last_rx
= jiffies
;
466 drvr
->dstats
.rx_bytes
+= skb
->len
;
467 drvr
->rx_packets
++; /* Local count */
472 /* If the receive is not processed inside an ISR,
473 * the softirqd must be woken explicitly to service
474 * the NET_RX_SOFTIRQ. In 2.6 kernels, this is handled
475 * by netif_rx_ni(), but in earlier kernels, we need
482 void brcmf_txcomplete(struct brcmf_pub
*drvr
, struct sk_buff
*txp
, bool success
)
485 struct brcmf_info
*drvr_priv
= drvr
->info
;
489 brcmf_proto_hdrpull(drvr
, &ifidx
, txp
);
491 eh
= (struct ethhdr
*)(txp
->data
);
492 type
= ntohs(eh
->h_proto
);
494 if (type
== ETH_P_PAE
)
495 atomic_dec(&drvr_priv
->pend_8021x_cnt
);
499 static struct net_device_stats
*brcmf_netdev_get_stats(struct net_device
*ndev
)
501 struct brcmf_if
*ifp
= netdev_priv(ndev
);
502 struct brcmf_info
*drvr_priv
= ifp
->info
;
504 brcmf_dbg(TRACE
, "Enter\n");
506 if (drvr_priv
->pub
.up
)
507 /* Use the protocol to get dongle stats */
508 brcmf_proto_dstats(&drvr_priv
->pub
);
510 /* Copy dongle stats to net device stats */
511 ifp
->stats
.rx_packets
= drvr_priv
->pub
.dstats
.rx_packets
;
512 ifp
->stats
.tx_packets
= drvr_priv
->pub
.dstats
.tx_packets
;
513 ifp
->stats
.rx_bytes
= drvr_priv
->pub
.dstats
.rx_bytes
;
514 ifp
->stats
.tx_bytes
= drvr_priv
->pub
.dstats
.tx_bytes
;
515 ifp
->stats
.rx_errors
= drvr_priv
->pub
.dstats
.rx_errors
;
516 ifp
->stats
.tx_errors
= drvr_priv
->pub
.dstats
.tx_errors
;
517 ifp
->stats
.rx_dropped
= drvr_priv
->pub
.dstats
.rx_dropped
;
518 ifp
->stats
.tx_dropped
= drvr_priv
->pub
.dstats
.tx_dropped
;
519 ifp
->stats
.multicast
= drvr_priv
->pub
.dstats
.multicast
;
524 /* Retrieve current toe component enables, which are kept
525 as a bitmap in toe_ol iovar */
526 static int brcmf_toe_get(struct brcmf_info
*drvr_priv
, int ifidx
, u32
*toe_ol
)
528 struct brcmf_dcmd dcmd
;
533 memset(&dcmd
, 0, sizeof(dcmd
));
535 dcmd
.cmd
= BRCMF_C_GET_VAR
;
537 dcmd
.len
= (uint
) sizeof(buf
);
540 strcpy(buf
, "toe_ol");
541 ret
= brcmf_proto_dcmd(&drvr_priv
->pub
, ifidx
, &dcmd
, dcmd
.len
);
543 /* Check for older dongle image that doesn't support toe_ol */
545 brcmf_dbg(ERROR
, "%s: toe not supported by device\n",
546 brcmf_ifname(&drvr_priv
->pub
, ifidx
));
550 brcmf_dbg(INFO
, "%s: could not get toe_ol: ret=%d\n",
551 brcmf_ifname(&drvr_priv
->pub
, ifidx
), ret
);
555 memcpy(&toe_le
, buf
, sizeof(u32
));
556 *toe_ol
= le32_to_cpu(toe_le
);
560 /* Set current toe component enables in toe_ol iovar,
561 and set toe global enable iovar */
562 static int brcmf_toe_set(struct brcmf_info
*drvr_priv
, int ifidx
, u32 toe_ol
)
564 struct brcmf_dcmd dcmd
;
567 __le32 toe_le
= cpu_to_le32(toe_ol
);
569 memset(&dcmd
, 0, sizeof(dcmd
));
571 dcmd
.cmd
= BRCMF_C_SET_VAR
;
573 dcmd
.len
= (uint
) sizeof(buf
);
576 /* Set toe_ol as requested */
577 strcpy(buf
, "toe_ol");
578 memcpy(&buf
[sizeof("toe_ol")], &toe_le
, sizeof(u32
));
580 ret
= brcmf_proto_dcmd(&drvr_priv
->pub
, ifidx
, &dcmd
, dcmd
.len
);
582 brcmf_dbg(ERROR
, "%s: could not set toe_ol: ret=%d\n",
583 brcmf_ifname(&drvr_priv
->pub
, ifidx
), ret
);
587 /* Enable toe globally only if any components are enabled. */
588 toe_le
= cpu_to_le32(toe_ol
!= 0);
591 memcpy(&buf
[sizeof("toe")], &toe_le
, sizeof(u32
));
593 ret
= brcmf_proto_dcmd(&drvr_priv
->pub
, ifidx
, &dcmd
, dcmd
.len
);
595 brcmf_dbg(ERROR
, "%s: could not set toe: ret=%d\n",
596 brcmf_ifname(&drvr_priv
->pub
, ifidx
), ret
);
603 static void brcmf_ethtool_get_drvinfo(struct net_device
*ndev
,
604 struct ethtool_drvinfo
*info
)
606 struct brcmf_if
*ifp
= netdev_priv(ndev
);
607 struct brcmf_info
*drvr_priv
= ifp
->info
;
609 sprintf(info
->driver
, KBUILD_MODNAME
);
610 sprintf(info
->version
, "%lu", drvr_priv
->pub
.drv_version
);
611 sprintf(info
->bus_info
, "%s",
612 dev_name(brcmf_bus_get_device(drvr_priv
->pub
.bus
)));
615 static struct ethtool_ops brcmf_ethtool_ops
= {
616 .get_drvinfo
= brcmf_ethtool_get_drvinfo
619 static int brcmf_ethtool(struct brcmf_info
*drvr_priv
, void __user
*uaddr
)
621 struct ethtool_drvinfo info
;
622 char drvname
[sizeof(info
.driver
)];
624 struct ethtool_value edata
;
625 u32 toe_cmpnt
, csum_dir
;
628 brcmf_dbg(TRACE
, "Enter\n");
630 /* all ethtool calls start with a cmd word */
631 if (copy_from_user(&cmd
, uaddr
, sizeof(u32
)))
635 case ETHTOOL_GDRVINFO
:
636 /* Copy out any request driver name */
637 if (copy_from_user(&info
, uaddr
, sizeof(info
)))
639 strncpy(drvname
, info
.driver
, sizeof(info
.driver
));
640 drvname
[sizeof(info
.driver
) - 1] = '\0';
642 /* clear struct for return */
643 memset(&info
, 0, sizeof(info
));
646 /* if requested, identify ourselves */
647 if (strcmp(drvname
, "?dhd") == 0) {
648 sprintf(info
.driver
, "dhd");
649 strcpy(info
.version
, BRCMF_VERSION_STR
);
652 /* otherwise, require dongle to be up */
653 else if (!drvr_priv
->pub
.up
) {
654 brcmf_dbg(ERROR
, "dongle is not up\n");
658 /* finally, report dongle driver type */
659 else if (drvr_priv
->pub
.iswl
)
660 sprintf(info
.driver
, "wl");
662 sprintf(info
.driver
, "xx");
664 sprintf(info
.version
, "%lu", drvr_priv
->pub
.drv_version
);
665 if (copy_to_user(uaddr
, &info
, sizeof(info
)))
667 brcmf_dbg(CTL
, "given %*s, returning %s\n",
668 (int)sizeof(drvname
), drvname
, info
.driver
);
671 /* Get toe offload components from dongle */
672 case ETHTOOL_GRXCSUM
:
673 case ETHTOOL_GTXCSUM
:
674 ret
= brcmf_toe_get(drvr_priv
, 0, &toe_cmpnt
);
679 (cmd
== ETHTOOL_GTXCSUM
) ? TOE_TX_CSUM_OL
: TOE_RX_CSUM_OL
;
682 edata
.data
= (toe_cmpnt
& csum_dir
) ? 1 : 0;
684 if (copy_to_user(uaddr
, &edata
, sizeof(edata
)))
688 /* Set toe offload components in dongle */
689 case ETHTOOL_SRXCSUM
:
690 case ETHTOOL_STXCSUM
:
691 if (copy_from_user(&edata
, uaddr
, sizeof(edata
)))
694 /* Read the current settings, update and write back */
695 ret
= brcmf_toe_get(drvr_priv
, 0, &toe_cmpnt
);
700 (cmd
== ETHTOOL_STXCSUM
) ? TOE_TX_CSUM_OL
: TOE_RX_CSUM_OL
;
703 toe_cmpnt
|= csum_dir
;
705 toe_cmpnt
&= ~csum_dir
;
707 ret
= brcmf_toe_set(drvr_priv
, 0, toe_cmpnt
);
711 /* If setting TX checksum mode, tell Linux the new mode */
712 if (cmd
== ETHTOOL_STXCSUM
) {
714 drvr_priv
->iflist
[0]->ndev
->features
|=
717 drvr_priv
->iflist
[0]->ndev
->features
&=
730 static int brcmf_netdev_ioctl_entry(struct net_device
*ndev
, struct ifreq
*ifr
,
733 struct brcmf_if
*ifp
= netdev_priv(ndev
);
734 struct brcmf_info
*drvr_priv
= ifp
->info
;
736 brcmf_dbg(TRACE
, "ifidx %d, cmd 0x%04x\n", ifp
->idx
, cmd
);
738 if (!drvr_priv
->iflist
[ifp
->idx
])
741 if (cmd
== SIOCETHTOOL
)
742 return brcmf_ethtool(drvr_priv
, ifr
->ifr_data
);
747 /* called only from within this driver. Sends a command to the dongle. */
748 s32
brcmf_exec_dcmd(struct net_device
*ndev
, u32 cmd
, void *arg
, u32 len
)
750 struct brcmf_dcmd dcmd
;
754 struct brcmf_if
*ifp
= netdev_priv(ndev
);
755 struct brcmf_info
*drvr_priv
= ifp
->info
;
757 memset(&dcmd
, 0, sizeof(dcmd
));
762 if (dcmd
.buf
!= NULL
)
763 buflen
= min_t(uint
, dcmd
.len
, BRCMF_DCMD_MAXLEN
);
765 /* send to dongle (must be up, and wl) */
766 if ((drvr_priv
->pub
.bus_if
->state
!= BRCMF_BUS_DATA
)) {
767 brcmf_dbg(ERROR
, "DONGLE_DOWN\n");
772 if (!drvr_priv
->pub
.iswl
) {
778 * Intercept BRCMF_C_SET_KEY CMD - serialize M4 send and
779 * set key CMD to prevent M4 encryption.
781 is_set_key_cmd
= ((dcmd
.cmd
== BRCMF_C_SET_KEY
) ||
782 ((dcmd
.cmd
== BRCMF_C_SET_VAR
) &&
783 !(strncmp("wsec_key", dcmd
.buf
, 9))) ||
784 ((dcmd
.cmd
== BRCMF_C_SET_VAR
) &&
785 !(strncmp("bsscfg:wsec_key", dcmd
.buf
, 15))));
787 brcmf_netdev_wait_pend8021x(ndev
);
789 err
= brcmf_proto_dcmd(&drvr_priv
->pub
, ifp
->idx
, &dcmd
, buflen
);
798 static int brcmf_netdev_stop(struct net_device
*ndev
)
800 struct brcmf_if
*ifp
= netdev_priv(ndev
);
801 struct brcmf_pub
*drvr
= &ifp
->info
->pub
;
803 brcmf_dbg(TRACE
, "Enter\n");
804 brcmf_cfg80211_down(drvr
->config
);
808 /* Set state and stop OS transmissions */
810 netif_stop_queue(ndev
);
815 static int brcmf_netdev_open(struct net_device
*ndev
)
817 struct brcmf_if
*ifp
= netdev_priv(ndev
);
818 struct brcmf_info
*drvr_priv
= ifp
->info
;
822 brcmf_dbg(TRACE
, "ifidx %d\n", ifp
->idx
);
824 if (ifp
->idx
== 0) { /* do it only for primary eth0 */
825 /* try to bring up bus */
826 ret
= brcmf_bus_start(&drvr_priv
->pub
);
828 brcmf_dbg(ERROR
, "failed with code %d\n", ret
);
831 atomic_set(&drvr_priv
->pend_8021x_cnt
, 0);
833 memcpy(ndev
->dev_addr
, drvr_priv
->pub
.mac
, ETH_ALEN
);
835 /* Get current TOE mode from dongle */
836 if (brcmf_toe_get(drvr_priv
, ifp
->idx
, &toe_ol
) >= 0
837 && (toe_ol
& TOE_TX_CSUM_OL
) != 0)
838 drvr_priv
->iflist
[ifp
->idx
]->ndev
->features
|=
841 drvr_priv
->iflist
[ifp
->idx
]->ndev
->features
&=
844 /* Allow transmit calls */
845 netif_start_queue(ndev
);
846 drvr_priv
->pub
.up
= 1;
847 if (brcmf_cfg80211_up(drvr_priv
->pub
.config
)) {
848 brcmf_dbg(ERROR
, "failed to bring up cfg80211\n");
855 static const struct net_device_ops brcmf_netdev_ops_pri
= {
856 .ndo_open
= brcmf_netdev_open
,
857 .ndo_stop
= brcmf_netdev_stop
,
858 .ndo_get_stats
= brcmf_netdev_get_stats
,
859 .ndo_do_ioctl
= brcmf_netdev_ioctl_entry
,
860 .ndo_start_xmit
= brcmf_netdev_start_xmit
,
861 .ndo_set_mac_address
= brcmf_netdev_set_mac_address
,
862 .ndo_set_rx_mode
= brcmf_netdev_set_multicast_list
866 brcmf_add_if(struct brcmf_info
*drvr_priv
, int ifidx
, char *name
, u8
*mac_addr
)
868 struct brcmf_if
*ifp
;
869 struct net_device
*ndev
;
871 brcmf_dbg(TRACE
, "idx %d\n", ifidx
);
873 ifp
= drvr_priv
->iflist
[ifidx
];
875 * Delete the existing interface before overwriting it
876 * in case we missed the BRCMF_E_IF_DEL event.
879 brcmf_dbg(ERROR
, "ERROR: netdev:%s already exists, try free & unregister\n",
881 netif_stop_queue(ifp
->ndev
);
882 unregister_netdev(ifp
->ndev
);
883 free_netdev(ifp
->ndev
);
884 drvr_priv
->iflist
[ifidx
] = NULL
;
887 /* Allocate netdev, including space for private structure */
888 ndev
= alloc_netdev(sizeof(struct brcmf_if
), name
, ether_setup
);
890 brcmf_dbg(ERROR
, "OOM - alloc_netdev\n");
894 ifp
= netdev_priv(ndev
);
896 ifp
->info
= drvr_priv
;
897 drvr_priv
->iflist
[ifidx
] = ifp
;
899 if (mac_addr
!= NULL
)
900 memcpy(&ifp
->mac_addr
, mac_addr
, ETH_ALEN
);
902 if (brcmf_net_attach(&drvr_priv
->pub
, ifp
->idx
)) {
903 brcmf_dbg(ERROR
, "brcmf_net_attach failed");
904 free_netdev(ifp
->ndev
);
905 drvr_priv
->iflist
[ifidx
] = NULL
;
909 brcmf_dbg(TRACE
, " ==== pid:%x, net_device for if:%s created ===\n",
910 current
->pid
, ifp
->ndev
->name
);
915 void brcmf_del_if(struct brcmf_info
*drvr_priv
, int ifidx
)
917 struct brcmf_if
*ifp
;
919 brcmf_dbg(TRACE
, "idx %d\n", ifidx
);
921 ifp
= drvr_priv
->iflist
[ifidx
];
923 brcmf_dbg(ERROR
, "Null interface\n");
928 if (ifp
->ndev
->netdev_ops
== &brcmf_netdev_ops_pri
) {
930 brcmf_netdev_stop(ifp
->ndev
);
934 netif_stop_queue(ifp
->ndev
);
937 unregister_netdev(ifp
->ndev
);
938 drvr_priv
->iflist
[ifidx
] = NULL
;
940 brcmf_cfg80211_detach(drvr_priv
->pub
.config
);
941 free_netdev(ifp
->ndev
);
945 struct brcmf_pub
*brcmf_attach(struct brcmf_sdio
*bus
, uint bus_hdrlen
,
948 struct brcmf_info
*drvr_priv
= NULL
;
950 brcmf_dbg(TRACE
, "Enter\n");
952 /* Allocate primary brcmf_info */
953 drvr_priv
= kzalloc(sizeof(struct brcmf_info
), GFP_ATOMIC
);
957 mutex_init(&drvr_priv
->proto_block
);
959 /* Link to info module */
960 drvr_priv
->pub
.info
= drvr_priv
;
962 /* Link to bus module */
963 drvr_priv
->pub
.bus
= bus
;
964 drvr_priv
->pub
.hdrlen
= bus_hdrlen
;
965 drvr_priv
->pub
.bus_if
= dev_get_drvdata(dev
);
966 drvr_priv
->pub
.dev
= dev
;
968 /* Attach and link in the protocol */
969 if (brcmf_proto_attach(&drvr_priv
->pub
) != 0) {
970 brcmf_dbg(ERROR
, "brcmf_prot_attach failed\n");
974 INIT_WORK(&drvr_priv
->setmacaddr_work
, _brcmf_set_mac_address
);
975 INIT_WORK(&drvr_priv
->multicast_work
, _brcmf_set_multicast_list
);
977 return &drvr_priv
->pub
;
981 brcmf_detach(&drvr_priv
->pub
);
986 int brcmf_bus_start(struct brcmf_pub
*drvr
)
989 struct brcmf_info
*drvr_priv
= drvr
->info
;
990 /* Room for "event_msgs" + '\0' + bitvec */
991 char iovbuf
[BRCMF_EVENTING_MASK_LEN
+ 12];
993 brcmf_dbg(TRACE
, "\n");
995 /* Bring up the bus */
996 ret
= brcmf_sdbrcm_bus_init(&drvr_priv
->pub
);
998 brcmf_dbg(ERROR
, "brcmf_sdbrcm_bus_init failed %d\n", ret
);
1002 /* If bus is not ready, can't come up */
1003 if (drvr_priv
->pub
.bus_if
->state
!= BRCMF_BUS_DATA
) {
1004 brcmf_dbg(ERROR
, "failed bus is not ready\n");
1008 brcmf_c_mkiovar("event_msgs", drvr
->eventmask
, BRCMF_EVENTING_MASK_LEN
,
1009 iovbuf
, sizeof(iovbuf
));
1010 brcmf_proto_cdc_query_dcmd(drvr
, 0, BRCMF_C_GET_VAR
, iovbuf
,
1012 memcpy(drvr
->eventmask
, iovbuf
, BRCMF_EVENTING_MASK_LEN
);
1014 setbit(drvr
->eventmask
, BRCMF_E_SET_SSID
);
1015 setbit(drvr
->eventmask
, BRCMF_E_PRUNE
);
1016 setbit(drvr
->eventmask
, BRCMF_E_AUTH
);
1017 setbit(drvr
->eventmask
, BRCMF_E_REASSOC
);
1018 setbit(drvr
->eventmask
, BRCMF_E_REASSOC_IND
);
1019 setbit(drvr
->eventmask
, BRCMF_E_DEAUTH_IND
);
1020 setbit(drvr
->eventmask
, BRCMF_E_DISASSOC_IND
);
1021 setbit(drvr
->eventmask
, BRCMF_E_DISASSOC
);
1022 setbit(drvr
->eventmask
, BRCMF_E_JOIN
);
1023 setbit(drvr
->eventmask
, BRCMF_E_ASSOC_IND
);
1024 setbit(drvr
->eventmask
, BRCMF_E_PSK_SUP
);
1025 setbit(drvr
->eventmask
, BRCMF_E_LINK
);
1026 setbit(drvr
->eventmask
, BRCMF_E_NDIS_LINK
);
1027 setbit(drvr
->eventmask
, BRCMF_E_MIC_ERROR
);
1028 setbit(drvr
->eventmask
, BRCMF_E_PMKID_CACHE
);
1029 setbit(drvr
->eventmask
, BRCMF_E_TXFAIL
);
1030 setbit(drvr
->eventmask
, BRCMF_E_JOIN_START
);
1031 setbit(drvr
->eventmask
, BRCMF_E_SCAN_COMPLETE
);
1033 /* enable dongle roaming event */
1035 drvr
->pktfilter_count
= 1;
1036 /* Setup filter to allow only unicast */
1037 drvr
->pktfilter
[0] = "100 0 0 0 0x01 0x00";
1039 /* Bus is ready, do any protocol initialization */
1040 ret
= brcmf_proto_init(&drvr_priv
->pub
);
1047 int brcmf_net_attach(struct brcmf_pub
*drvr
, int ifidx
)
1049 struct brcmf_info
*drvr_priv
= drvr
->info
;
1050 struct net_device
*ndev
;
1051 u8 temp_addr
[ETH_ALEN
] = {
1052 0x00, 0x90, 0x4c, 0x11, 0x22, 0x33};
1054 brcmf_dbg(TRACE
, "ifidx %d\n", ifidx
);
1056 ndev
= drvr_priv
->iflist
[ifidx
]->ndev
;
1057 ndev
->netdev_ops
= &brcmf_netdev_ops_pri
;
1060 * We have to use the primary MAC for virtual interfaces
1063 /* for virtual interfaces use the primary MAC */
1064 memcpy(temp_addr
, drvr_priv
->pub
.mac
, ETH_ALEN
);
1069 brcmf_dbg(TRACE
, "ACCESS POINT MAC:\n");
1070 /* ACCESSPOINT INTERFACE CASE */
1071 temp_addr
[0] |= 0X02; /* set bit 2 ,
1072 - Locally Administered address */
1075 ndev
->hard_header_len
= ETH_HLEN
+ drvr_priv
->pub
.hdrlen
;
1076 ndev
->ethtool_ops
= &brcmf_ethtool_ops
;
1078 drvr_priv
->pub
.rxsz
= ndev
->mtu
+ ndev
->hard_header_len
+
1079 drvr_priv
->pub
.hdrlen
;
1081 memcpy(ndev
->dev_addr
, temp_addr
, ETH_ALEN
);
1083 /* attach to cfg80211 for primary interface */
1086 brcmf_cfg80211_attach(ndev
,
1087 brcmf_bus_get_device(drvr
->bus
),
1089 if (drvr
->config
== NULL
) {
1090 brcmf_dbg(ERROR
, "wl_cfg80211_attach failed\n");
1095 if (register_netdev(ndev
) != 0) {
1096 brcmf_dbg(ERROR
, "couldn't register the net device\n");
1100 brcmf_dbg(INFO
, "%s: Broadcom Dongle Host Driver\n", ndev
->name
);
1105 ndev
->netdev_ops
= NULL
;
1109 static void brcmf_bus_detach(struct brcmf_pub
*drvr
)
1111 struct brcmf_info
*drvr_priv
;
1113 brcmf_dbg(TRACE
, "Enter\n");
1116 drvr_priv
= drvr
->info
;
1118 /* Stop the protocol module */
1119 brcmf_proto_stop(&drvr_priv
->pub
);
1121 /* Stop the bus module */
1122 brcmf_sdbrcm_bus_stop(drvr_priv
->pub
.bus
);
1127 void brcmf_detach(struct brcmf_pub
*drvr
)
1129 struct brcmf_info
*drvr_priv
;
1131 brcmf_dbg(TRACE
, "Enter\n");
1134 drvr_priv
= drvr
->info
;
1138 /* make sure primary interface removed last */
1139 for (i
= BRCMF_MAX_IFS
-1; i
> -1; i
--)
1140 if (drvr_priv
->iflist
[i
])
1141 brcmf_del_if(drvr_priv
, i
);
1143 cancel_work_sync(&drvr_priv
->setmacaddr_work
);
1144 cancel_work_sync(&drvr_priv
->multicast_work
);
1146 brcmf_bus_detach(drvr
);
1149 brcmf_proto_detach(drvr
);
1156 int brcmf_os_proto_block(struct brcmf_pub
*drvr
)
1158 struct brcmf_info
*drvr_priv
= drvr
->info
;
1161 mutex_lock(&drvr_priv
->proto_block
);
1167 int brcmf_os_proto_unblock(struct brcmf_pub
*drvr
)
1169 struct brcmf_info
*drvr_priv
= drvr
->info
;
1172 mutex_unlock(&drvr_priv
->proto_block
);
1179 static int brcmf_get_pend_8021x_cnt(struct brcmf_info
*drvr_priv
)
1181 return atomic_read(&drvr_priv
->pend_8021x_cnt
);
1184 #define MAX_WAIT_FOR_8021X_TX 10
1186 int brcmf_netdev_wait_pend8021x(struct net_device
*ndev
)
1188 struct brcmf_if
*ifp
= netdev_priv(ndev
);
1189 struct brcmf_info
*drvr_priv
= ifp
->info
;
1190 int timeout
= 10 * HZ
/ 1000;
1191 int ntimes
= MAX_WAIT_FOR_8021X_TX
;
1192 int pend
= brcmf_get_pend_8021x_cnt(drvr_priv
);
1194 while (ntimes
&& pend
) {
1196 set_current_state(TASK_INTERRUPTIBLE
);
1197 schedule_timeout(timeout
);
1198 set_current_state(TASK_RUNNING
);
1201 pend
= brcmf_get_pend_8021x_cnt(drvr_priv
);
1207 int brcmf_write_to_file(struct brcmf_pub
*drvr
, const u8
*buf
, int size
)
1211 mm_segment_t old_fs
;
1214 /* change to KERNEL_DS address limit */
1218 /* open file to write */
1219 fp
= filp_open("/tmp/mem_dump", O_WRONLY
| O_CREAT
, 0640);
1221 brcmf_dbg(ERROR
, "open file error\n");
1226 /* Write buf to file */
1227 fp
->f_op
->write(fp
, (char __user
*)buf
, size
, &pos
);
1230 /* free buf before return */
1232 /* close file before return */
1234 filp_close(fp
, current
->files
);
1235 /* restore previous address limit */