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"
48 MODULE_AUTHOR("Broadcom Corporation");
49 MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN fullmac driver.");
50 MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN fullmac cards");
51 MODULE_LICENSE("Dual BSD/GPL");
54 /* Interface control information */
56 struct brcmf_info
*info
; /* back pointer to brcmf_info */
57 /* OS/stack specifics */
58 struct net_device
*ndev
;
59 struct net_device_stats stats
;
60 int idx
; /* iface idx in dongle */
61 int state
; /* interface state */
62 u8 mac_addr
[ETH_ALEN
]; /* assigned MAC address */
65 /* Local private structure (extension of pub) */
69 /* OS/stack specifics */
70 struct brcmf_if
*iflist
[BRCMF_MAX_IFS
];
72 struct mutex proto_block
;
74 struct work_struct setmacaddr_work
;
75 struct work_struct multicast_work
;
76 u8 macvalue
[ETH_ALEN
];
77 atomic_t pend_8021x_cnt
;
81 module_param(brcmf_msg_level
, int, 0);
84 static int brcmf_net2idx(struct brcmf_info
*drvr_priv
, struct net_device
*ndev
)
88 while (i
< BRCMF_MAX_IFS
) {
89 if (drvr_priv
->iflist
[i
] && drvr_priv
->iflist
[i
]->ndev
== ndev
)
97 int brcmf_ifname2idx(struct brcmf_info
*drvr_priv
, char *name
)
99 int i
= BRCMF_MAX_IFS
;
100 struct brcmf_if
*ifp
;
102 if (name
== NULL
|| *name
== '\0')
106 ifp
= drvr_priv
->iflist
[i
];
107 if (ifp
&& !strncmp(ifp
->ndev
->name
, name
, IFNAMSIZ
))
111 brcmf_dbg(TRACE
, "return idx %d for \"%s\"\n", i
, name
);
113 return i
; /* default - the primary interface */
116 char *brcmf_ifname(struct brcmf_pub
*drvr
, int ifidx
)
118 struct brcmf_info
*drvr_priv
= drvr
->info
;
120 if (ifidx
< 0 || ifidx
>= BRCMF_MAX_IFS
) {
121 brcmf_dbg(ERROR
, "ifidx %d out of range\n", ifidx
);
125 if (drvr_priv
->iflist
[ifidx
] == NULL
) {
126 brcmf_dbg(ERROR
, "null i/f %d\n", ifidx
);
130 if (drvr_priv
->iflist
[ifidx
]->ndev
)
131 return drvr_priv
->iflist
[ifidx
]->ndev
->name
;
136 static void _brcmf_set_multicast_list(struct work_struct
*work
)
138 struct net_device
*ndev
;
139 struct netdev_hw_addr
*ha
;
142 __le32 dcmd_le_value
;
144 struct brcmf_dcmd dcmd
;
149 struct brcmf_info
*drvr_priv
= container_of(work
, struct brcmf_info
,
152 ndev
= drvr_priv
->iflist
[0]->ndev
;
153 cnt
= netdev_mc_count(ndev
);
155 /* Determine initial value of allmulti flag */
156 dcmd_value
= (ndev
->flags
& IFF_ALLMULTI
) ? true : false;
158 /* Send down the multicast list first. */
160 buflen
= sizeof("mcast_list") + sizeof(cnt
) + (cnt
* ETH_ALEN
);
161 bufp
= buf
= kmalloc(buflen
, GFP_ATOMIC
);
165 strcpy(bufp
, "mcast_list");
166 bufp
+= strlen("mcast_list") + 1;
168 cnt_le
= cpu_to_le32(cnt
);
169 memcpy(bufp
, &cnt_le
, sizeof(cnt
));
170 bufp
+= sizeof(cnt_le
);
172 netdev_for_each_mc_addr(ha
, ndev
) {
175 memcpy(bufp
, ha
->addr
, ETH_ALEN
);
180 memset(&dcmd
, 0, sizeof(dcmd
));
181 dcmd
.cmd
= BRCMF_C_SET_VAR
;
186 ret
= brcmf_proto_dcmd(&drvr_priv
->pub
, 0, &dcmd
, dcmd
.len
);
188 brcmf_dbg(ERROR
, "%s: set mcast_list failed, cnt %d\n",
189 brcmf_ifname(&drvr_priv
->pub
, 0), cnt
);
190 dcmd_value
= cnt
? true : dcmd_value
;
195 /* Now send the allmulti setting. This is based on the setting in the
196 * net_device flags, but might be modified above to be turned on if we
197 * were trying to set some addresses and dongle rejected it...
200 buflen
= sizeof("allmulti") + sizeof(dcmd_value
);
201 buf
= kmalloc(buflen
, GFP_ATOMIC
);
205 dcmd_le_value
= cpu_to_le32(dcmd_value
);
208 ("allmulti", (void *)&dcmd_le_value
,
209 sizeof(dcmd_le_value
), buf
, buflen
)) {
210 brcmf_dbg(ERROR
, "%s: mkiovar failed for allmulti, datalen %d buflen %u\n",
211 brcmf_ifname(&drvr_priv
->pub
, 0),
212 (int)sizeof(dcmd_value
), buflen
);
217 memset(&dcmd
, 0, sizeof(dcmd
));
218 dcmd
.cmd
= BRCMF_C_SET_VAR
;
223 ret
= brcmf_proto_dcmd(&drvr_priv
->pub
, 0, &dcmd
, dcmd
.len
);
225 brcmf_dbg(ERROR
, "%s: set allmulti %d failed\n",
226 brcmf_ifname(&drvr_priv
->pub
, 0),
227 le32_to_cpu(dcmd_le_value
));
232 /* Finally, pick up the PROMISC flag as well, like the NIC
235 dcmd_value
= (ndev
->flags
& IFF_PROMISC
) ? true : false;
236 dcmd_le_value
= cpu_to_le32(dcmd_value
);
238 memset(&dcmd
, 0, sizeof(dcmd
));
239 dcmd
.cmd
= BRCMF_C_SET_PROMISC
;
240 dcmd
.buf
= &dcmd_le_value
;
241 dcmd
.len
= sizeof(dcmd_le_value
);
244 ret
= brcmf_proto_dcmd(&drvr_priv
->pub
, 0, &dcmd
, dcmd
.len
);
246 brcmf_dbg(ERROR
, "%s: set promisc %d failed\n",
247 brcmf_ifname(&drvr_priv
->pub
, 0),
248 le32_to_cpu(dcmd_le_value
));
253 _brcmf_set_mac_address(struct work_struct
*work
)
256 struct brcmf_dcmd dcmd
;
259 struct brcmf_info
*drvr_priv
= container_of(work
, struct brcmf_info
,
262 brcmf_dbg(TRACE
, "enter\n");
263 if (!brcmf_c_mkiovar("cur_etheraddr", (char *)drvr_priv
->macvalue
,
264 ETH_ALEN
, buf
, 32)) {
265 brcmf_dbg(ERROR
, "%s: mkiovar failed for cur_etheraddr\n",
266 brcmf_ifname(&drvr_priv
->pub
, 0));
269 memset(&dcmd
, 0, sizeof(dcmd
));
270 dcmd
.cmd
= BRCMF_C_SET_VAR
;
275 ret
= brcmf_proto_dcmd(&drvr_priv
->pub
, 0, &dcmd
, dcmd
.len
);
277 brcmf_dbg(ERROR
, "%s: set cur_etheraddr failed\n",
278 brcmf_ifname(&drvr_priv
->pub
, 0));
280 memcpy(drvr_priv
->iflist
[0]->ndev
->dev_addr
,
281 drvr_priv
->macvalue
, ETH_ALEN
);
286 static int brcmf_netdev_set_mac_address(struct net_device
*ndev
, void *addr
)
288 struct brcmf_info
*drvr_priv
= *(struct brcmf_info
**)
290 struct sockaddr
*sa
= (struct sockaddr
*)addr
;
293 ifidx
= brcmf_net2idx(drvr_priv
, ndev
);
294 if (ifidx
== BRCMF_BAD_IF
)
297 memcpy(&drvr_priv
->macvalue
, sa
->sa_data
, ETH_ALEN
);
298 schedule_work(&drvr_priv
->setmacaddr_work
);
302 static void brcmf_netdev_set_multicast_list(struct net_device
*ndev
)
304 struct brcmf_info
*drvr_priv
= *(struct brcmf_info
**)
308 ifidx
= brcmf_net2idx(drvr_priv
, ndev
);
309 if (ifidx
== BRCMF_BAD_IF
)
312 schedule_work(&drvr_priv
->multicast_work
);
315 int brcmf_sendpkt(struct brcmf_pub
*drvr
, int ifidx
, struct sk_buff
*pktbuf
)
317 struct brcmf_info
*drvr_priv
= drvr
->info
;
320 if (!drvr
->up
|| (drvr
->busstate
== BRCMF_BUS_DOWN
))
323 /* Update multicast statistic */
324 if (pktbuf
->len
>= ETH_ALEN
) {
325 u8
*pktdata
= (u8
*) (pktbuf
->data
);
326 struct ethhdr
*eh
= (struct ethhdr
*)pktdata
;
328 if (is_multicast_ether_addr(eh
->h_dest
))
329 drvr
->tx_multicast
++;
330 if (ntohs(eh
->h_proto
) == ETH_P_PAE
)
331 atomic_inc(&drvr_priv
->pend_8021x_cnt
);
334 /* If the protocol uses a data header, apply it */
335 brcmf_proto_hdrpush(drvr
, ifidx
, pktbuf
);
337 /* Use bus module to send data frame */
338 return brcmf_sdbrcm_bus_txdata(drvr
->bus
, pktbuf
);
341 static int brcmf_netdev_start_xmit(struct sk_buff
*skb
, struct net_device
*ndev
)
344 struct brcmf_info
*drvr_priv
= *(struct brcmf_info
**)
348 brcmf_dbg(TRACE
, "Enter\n");
351 if (!drvr_priv
->pub
.up
|| (drvr_priv
->pub
.busstate
== BRCMF_BUS_DOWN
)) {
352 brcmf_dbg(ERROR
, "xmit rejected pub.up=%d busstate=%d\n",
353 drvr_priv
->pub
.up
, drvr_priv
->pub
.busstate
);
354 netif_stop_queue(ndev
);
358 ifidx
= brcmf_net2idx(drvr_priv
, ndev
);
359 if (ifidx
== BRCMF_BAD_IF
) {
360 brcmf_dbg(ERROR
, "bad ifidx %d\n", ifidx
);
361 netif_stop_queue(ndev
);
365 /* Make sure there's enough room for any header */
366 if (skb_headroom(skb
) < drvr_priv
->pub
.hdrlen
) {
367 struct sk_buff
*skb2
;
369 brcmf_dbg(INFO
, "%s: insufficient headroom\n",
370 brcmf_ifname(&drvr_priv
->pub
, ifidx
));
371 drvr_priv
->pub
.tx_realloc
++;
372 skb2
= skb_realloc_headroom(skb
, drvr_priv
->pub
.hdrlen
);
376 brcmf_dbg(ERROR
, "%s: skb_realloc_headroom failed\n",
377 brcmf_ifname(&drvr_priv
->pub
, ifidx
));
383 ret
= brcmf_sendpkt(&drvr_priv
->pub
, ifidx
, skb
);
387 drvr_priv
->pub
.dstats
.tx_dropped
++;
389 drvr_priv
->pub
.tx_packets
++;
391 /* Return ok: we always eat the packet */
395 void brcmf_txflowcontrol(struct brcmf_pub
*drvr
, int ifidx
, bool state
)
397 struct net_device
*ndev
;
398 struct brcmf_info
*drvr_priv
= drvr
->info
;
400 brcmf_dbg(TRACE
, "Enter\n");
403 ndev
= drvr_priv
->iflist
[ifidx
]->ndev
;
405 netif_stop_queue(ndev
);
407 netif_wake_queue(ndev
);
410 static int brcmf_host_event(struct brcmf_info
*drvr_priv
, int *ifidx
,
411 void *pktdata
, struct brcmf_event_msg
*event
,
416 bcmerror
= brcmf_c_host_event(drvr_priv
, ifidx
, pktdata
, event
, data
);
420 if (drvr_priv
->iflist
[*ifidx
]->ndev
)
421 brcmf_cfg80211_event(drvr_priv
->iflist
[*ifidx
]->ndev
,
427 void brcmf_rx_frame(struct brcmf_pub
*drvr
, int ifidx
, struct sk_buff
*skb
,
430 struct brcmf_info
*drvr_priv
= drvr
->info
;
434 struct sk_buff
*pnext
, *save_pktbuf
;
436 struct brcmf_if
*ifp
;
437 struct brcmf_event_msg event
;
439 brcmf_dbg(TRACE
, "Enter\n");
443 for (i
= 0; skb
&& i
< numpkt
; i
++, skb
= pnext
) {
448 /* Get the protocol, maintain skb around eth_type_trans()
449 * The main reason for this hack is for the limitation of
450 * Linux 2.4 where 'eth_type_trans' uses the
451 * 'net->hard_header_len'
452 * to perform skb_pull inside vs ETH_HLEN. Since to avoid
453 * coping of the packet coming from the network stack to add
454 * BDC, Hardware header etc, during network interface
456 * we set the 'net->hard_header_len' to ETH_HLEN + extra space
458 * for BDC, Hardware header etc. and not just the ETH_HLEN
463 ifp
= drvr_priv
->iflist
[ifidx
];
465 ifp
= drvr_priv
->iflist
[0];
467 skb
->dev
= ifp
->ndev
;
468 skb
->protocol
= eth_type_trans(skb
, skb
->dev
);
470 if (skb
->pkt_type
== PACKET_MULTICAST
)
471 drvr_priv
->pub
.rx_multicast
++;
476 /* Strip header, count, deliver upward */
477 skb_pull(skb
, ETH_HLEN
);
479 /* Process special event packets and then discard them */
480 if (ntohs(skb
->protocol
) == ETH_P_LINK_CTL
)
481 brcmf_host_event(drvr_priv
, &ifidx
,
485 if (drvr_priv
->iflist
[ifidx
] &&
486 !drvr_priv
->iflist
[ifidx
]->state
)
487 ifp
= drvr_priv
->iflist
[ifidx
];
490 ifp
->ndev
->last_rx
= jiffies
;
492 drvr
->dstats
.rx_bytes
+= skb
->len
;
493 drvr
->rx_packets
++; /* Local count */
498 /* If the receive is not processed inside an ISR,
499 * the softirqd must be woken explicitly to service
500 * the NET_RX_SOFTIRQ. In 2.6 kernels, this is handled
501 * by netif_rx_ni(), but in earlier kernels, we need
508 void brcmf_txcomplete(struct brcmf_pub
*drvr
, struct sk_buff
*txp
, bool success
)
511 struct brcmf_info
*drvr_priv
= drvr
->info
;
515 brcmf_proto_hdrpull(drvr
, &ifidx
, txp
);
517 eh
= (struct ethhdr
*)(txp
->data
);
518 type
= ntohs(eh
->h_proto
);
520 if (type
== ETH_P_PAE
)
521 atomic_dec(&drvr_priv
->pend_8021x_cnt
);
525 static struct net_device_stats
*brcmf_netdev_get_stats(struct net_device
*ndev
)
527 struct brcmf_info
*drvr_priv
= *(struct brcmf_info
**)
529 struct brcmf_if
*ifp
;
532 brcmf_dbg(TRACE
, "Enter\n");
534 ifidx
= brcmf_net2idx(drvr_priv
, ndev
);
535 if (ifidx
== BRCMF_BAD_IF
)
538 ifp
= drvr_priv
->iflist
[ifidx
];
540 if (drvr_priv
->pub
.up
)
541 /* Use the protocol to get dongle stats */
542 brcmf_proto_dstats(&drvr_priv
->pub
);
544 /* Copy dongle stats to net device stats */
545 ifp
->stats
.rx_packets
= drvr_priv
->pub
.dstats
.rx_packets
;
546 ifp
->stats
.tx_packets
= drvr_priv
->pub
.dstats
.tx_packets
;
547 ifp
->stats
.rx_bytes
= drvr_priv
->pub
.dstats
.rx_bytes
;
548 ifp
->stats
.tx_bytes
= drvr_priv
->pub
.dstats
.tx_bytes
;
549 ifp
->stats
.rx_errors
= drvr_priv
->pub
.dstats
.rx_errors
;
550 ifp
->stats
.tx_errors
= drvr_priv
->pub
.dstats
.tx_errors
;
551 ifp
->stats
.rx_dropped
= drvr_priv
->pub
.dstats
.rx_dropped
;
552 ifp
->stats
.tx_dropped
= drvr_priv
->pub
.dstats
.tx_dropped
;
553 ifp
->stats
.multicast
= drvr_priv
->pub
.dstats
.multicast
;
558 /* Retrieve current toe component enables, which are kept
559 as a bitmap in toe_ol iovar */
560 static int brcmf_toe_get(struct brcmf_info
*drvr_priv
, int ifidx
, u32
*toe_ol
)
562 struct brcmf_dcmd dcmd
;
567 memset(&dcmd
, 0, sizeof(dcmd
));
569 dcmd
.cmd
= BRCMF_C_GET_VAR
;
571 dcmd
.len
= (uint
) sizeof(buf
);
574 strcpy(buf
, "toe_ol");
575 ret
= brcmf_proto_dcmd(&drvr_priv
->pub
, ifidx
, &dcmd
, dcmd
.len
);
577 /* Check for older dongle image that doesn't support toe_ol */
579 brcmf_dbg(ERROR
, "%s: toe not supported by device\n",
580 brcmf_ifname(&drvr_priv
->pub
, ifidx
));
584 brcmf_dbg(INFO
, "%s: could not get toe_ol: ret=%d\n",
585 brcmf_ifname(&drvr_priv
->pub
, ifidx
), ret
);
589 memcpy(&toe_le
, buf
, sizeof(u32
));
590 *toe_ol
= le32_to_cpu(toe_le
);
594 /* Set current toe component enables in toe_ol iovar,
595 and set toe global enable iovar */
596 static int brcmf_toe_set(struct brcmf_info
*drvr_priv
, int ifidx
, u32 toe_ol
)
598 struct brcmf_dcmd dcmd
;
601 __le32 toe_le
= cpu_to_le32(toe_ol
);
603 memset(&dcmd
, 0, sizeof(dcmd
));
605 dcmd
.cmd
= BRCMF_C_SET_VAR
;
607 dcmd
.len
= (uint
) sizeof(buf
);
610 /* Set toe_ol as requested */
611 strcpy(buf
, "toe_ol");
612 memcpy(&buf
[sizeof("toe_ol")], &toe_le
, sizeof(u32
));
614 ret
= brcmf_proto_dcmd(&drvr_priv
->pub
, ifidx
, &dcmd
, dcmd
.len
);
616 brcmf_dbg(ERROR
, "%s: could not set toe_ol: ret=%d\n",
617 brcmf_ifname(&drvr_priv
->pub
, ifidx
), ret
);
621 /* Enable toe globally only if any components are enabled. */
622 toe_le
= cpu_to_le32(toe_ol
!= 0);
625 memcpy(&buf
[sizeof("toe")], &toe_le
, sizeof(u32
));
627 ret
= brcmf_proto_dcmd(&drvr_priv
->pub
, ifidx
, &dcmd
, dcmd
.len
);
629 brcmf_dbg(ERROR
, "%s: could not set toe: ret=%d\n",
630 brcmf_ifname(&drvr_priv
->pub
, ifidx
), ret
);
637 static void brcmf_ethtool_get_drvinfo(struct net_device
*ndev
,
638 struct ethtool_drvinfo
*info
)
640 struct brcmf_info
*drvr_priv
= *(struct brcmf_info
**)
643 sprintf(info
->driver
, KBUILD_MODNAME
);
644 sprintf(info
->version
, "%lu", drvr_priv
->pub
.drv_version
);
645 sprintf(info
->fw_version
, "%s", BCM4329_FW_NAME
);
646 sprintf(info
->bus_info
, "%s",
647 dev_name(brcmf_bus_get_device(drvr_priv
->pub
.bus
)));
650 static struct ethtool_ops brcmf_ethtool_ops
= {
651 .get_drvinfo
= brcmf_ethtool_get_drvinfo
654 static int brcmf_ethtool(struct brcmf_info
*drvr_priv
, void __user
*uaddr
)
656 struct ethtool_drvinfo info
;
657 char drvname
[sizeof(info
.driver
)];
659 struct ethtool_value edata
;
660 u32 toe_cmpnt
, csum_dir
;
663 brcmf_dbg(TRACE
, "Enter\n");
665 /* all ethtool calls start with a cmd word */
666 if (copy_from_user(&cmd
, uaddr
, sizeof(u32
)))
670 case ETHTOOL_GDRVINFO
:
671 /* Copy out any request driver name */
672 if (copy_from_user(&info
, uaddr
, sizeof(info
)))
674 strncpy(drvname
, info
.driver
, sizeof(info
.driver
));
675 drvname
[sizeof(info
.driver
) - 1] = '\0';
677 /* clear struct for return */
678 memset(&info
, 0, sizeof(info
));
681 /* if requested, identify ourselves */
682 if (strcmp(drvname
, "?dhd") == 0) {
683 sprintf(info
.driver
, "dhd");
684 strcpy(info
.version
, BRCMF_VERSION_STR
);
687 /* otherwise, require dongle to be up */
688 else if (!drvr_priv
->pub
.up
) {
689 brcmf_dbg(ERROR
, "dongle is not up\n");
693 /* finally, report dongle driver type */
694 else if (drvr_priv
->pub
.iswl
)
695 sprintf(info
.driver
, "wl");
697 sprintf(info
.driver
, "xx");
699 sprintf(info
.version
, "%lu", drvr_priv
->pub
.drv_version
);
700 if (copy_to_user(uaddr
, &info
, sizeof(info
)))
702 brcmf_dbg(CTL
, "given %*s, returning %s\n",
703 (int)sizeof(drvname
), drvname
, info
.driver
);
706 /* Get toe offload components from dongle */
707 case ETHTOOL_GRXCSUM
:
708 case ETHTOOL_GTXCSUM
:
709 ret
= brcmf_toe_get(drvr_priv
, 0, &toe_cmpnt
);
714 (cmd
== ETHTOOL_GTXCSUM
) ? TOE_TX_CSUM_OL
: TOE_RX_CSUM_OL
;
717 edata
.data
= (toe_cmpnt
& csum_dir
) ? 1 : 0;
719 if (copy_to_user(uaddr
, &edata
, sizeof(edata
)))
723 /* Set toe offload components in dongle */
724 case ETHTOOL_SRXCSUM
:
725 case ETHTOOL_STXCSUM
:
726 if (copy_from_user(&edata
, uaddr
, sizeof(edata
)))
729 /* Read the current settings, update and write back */
730 ret
= brcmf_toe_get(drvr_priv
, 0, &toe_cmpnt
);
735 (cmd
== ETHTOOL_STXCSUM
) ? TOE_TX_CSUM_OL
: TOE_RX_CSUM_OL
;
738 toe_cmpnt
|= csum_dir
;
740 toe_cmpnt
&= ~csum_dir
;
742 ret
= brcmf_toe_set(drvr_priv
, 0, toe_cmpnt
);
746 /* If setting TX checksum mode, tell Linux the new mode */
747 if (cmd
== ETHTOOL_STXCSUM
) {
749 drvr_priv
->iflist
[0]->ndev
->features
|=
752 drvr_priv
->iflist
[0]->ndev
->features
&=
765 static int brcmf_netdev_ioctl_entry(struct net_device
*ndev
, struct ifreq
*ifr
,
768 struct brcmf_info
*drvr_priv
= *(struct brcmf_info
**)
772 ifidx
= brcmf_net2idx(drvr_priv
, ndev
);
773 brcmf_dbg(TRACE
, "ifidx %d, cmd 0x%04x\n", ifidx
, cmd
);
775 if (ifidx
== BRCMF_BAD_IF
)
778 if (cmd
== SIOCETHTOOL
)
779 return brcmf_ethtool(drvr_priv
, ifr
->ifr_data
);
784 /* called only from within this driver. Sends a command to the dongle. */
785 s32
brcmf_exec_dcmd(struct net_device
*ndev
, u32 cmd
, void *arg
, u32 len
)
787 struct brcmf_dcmd dcmd
;
791 struct brcmf_info
*drvr_priv
= *(struct brcmf_info
**)
795 memset(&dcmd
, 0, sizeof(dcmd
));
800 ifidx
= brcmf_net2idx(drvr_priv
, ndev
);
802 if (dcmd
.buf
!= NULL
)
803 buflen
= min_t(uint
, dcmd
.len
, BRCMF_DCMD_MAXLEN
);
805 /* send to dongle (must be up, and wl) */
806 if ((drvr_priv
->pub
.busstate
!= BRCMF_BUS_DATA
)) {
807 brcmf_dbg(ERROR
, "DONGLE_DOWN\n");
812 if (!drvr_priv
->pub
.iswl
) {
818 * Intercept BRCMF_C_SET_KEY CMD - serialize M4 send and
819 * set key CMD to prevent M4 encryption.
821 is_set_key_cmd
= ((dcmd
.cmd
== BRCMF_C_SET_KEY
) ||
822 ((dcmd
.cmd
== BRCMF_C_SET_VAR
) &&
823 !(strncmp("wsec_key", dcmd
.buf
, 9))) ||
824 ((dcmd
.cmd
== BRCMF_C_SET_VAR
) &&
825 !(strncmp("bsscfg:wsec_key", dcmd
.buf
, 15))));
827 brcmf_netdev_wait_pend8021x(ndev
);
829 err
= brcmf_proto_dcmd(&drvr_priv
->pub
, ifidx
, &dcmd
, buflen
);
838 static int brcmf_netdev_stop(struct net_device
*ndev
)
840 struct brcmf_pub
*drvr
= *(struct brcmf_pub
**) netdev_priv(ndev
);
842 brcmf_dbg(TRACE
, "Enter\n");
843 brcmf_cfg80211_down(drvr
->config
);
847 /* Set state and stop OS transmissions */
849 netif_stop_queue(ndev
);
854 static int brcmf_netdev_open(struct net_device
*ndev
)
856 struct brcmf_info
*drvr_priv
= *(struct brcmf_info
**)
859 int ifidx
= brcmf_net2idx(drvr_priv
, ndev
);
862 brcmf_dbg(TRACE
, "ifidx %d\n", ifidx
);
864 if (ifidx
== 0) { /* do it only for primary eth0 */
866 /* try to bring up bus */
867 ret
= brcmf_bus_start(&drvr_priv
->pub
);
869 brcmf_dbg(ERROR
, "failed with code %d\n", ret
);
872 atomic_set(&drvr_priv
->pend_8021x_cnt
, 0);
874 memcpy(ndev
->dev_addr
, drvr_priv
->pub
.mac
, ETH_ALEN
);
876 /* Get current TOE mode from dongle */
877 if (brcmf_toe_get(drvr_priv
, ifidx
, &toe_ol
) >= 0
878 && (toe_ol
& TOE_TX_CSUM_OL
) != 0)
879 drvr_priv
->iflist
[ifidx
]->ndev
->features
|=
882 drvr_priv
->iflist
[ifidx
]->ndev
->features
&=
885 /* Allow transmit calls */
886 netif_start_queue(ndev
);
887 drvr_priv
->pub
.up
= 1;
888 if (brcmf_cfg80211_up(drvr_priv
->pub
.config
)) {
889 brcmf_dbg(ERROR
, "failed to bring up cfg80211\n");
897 brcmf_add_if(struct brcmf_info
*drvr_priv
, int ifidx
, struct net_device
*ndev
,
898 char *name
, u8
*mac_addr
, u32 flags
, u8 bssidx
)
900 struct brcmf_if
*ifp
;
901 int ret
= 0, err
= 0;
903 brcmf_dbg(TRACE
, "idx %d, handle->%p\n", ifidx
, ndev
);
905 ifp
= drvr_priv
->iflist
[ifidx
];
907 ifp
= kmalloc(sizeof(struct brcmf_if
), GFP_ATOMIC
);
912 memset(ifp
, 0, sizeof(struct brcmf_if
));
913 ifp
->info
= drvr_priv
;
914 drvr_priv
->iflist
[ifidx
] = ifp
;
915 if (mac_addr
!= NULL
)
916 memcpy(&ifp
->mac_addr
, mac_addr
, ETH_ALEN
);
919 ifp
->state
= BRCMF_E_IF_ADD
;
922 * Delete the existing interface before overwriting it
923 * in case we missed the BRCMF_E_IF_DEL event.
925 if (ifp
->ndev
!= NULL
) {
926 brcmf_dbg(ERROR
, "ERROR: netdev:%s already exists, try free & unregister\n",
928 netif_stop_queue(ifp
->ndev
);
929 unregister_netdev(ifp
->ndev
);
930 free_netdev(ifp
->ndev
);
933 /* Allocate netdev, including space for private structure */
934 ifp
->ndev
= alloc_netdev(sizeof(drvr_priv
), "wlan%d",
937 brcmf_dbg(ERROR
, "OOM - alloc_netdev\n");
942 memcpy(netdev_priv(ifp
->ndev
), &drvr_priv
,
944 err
= brcmf_net_attach(&drvr_priv
->pub
, ifp
->idx
);
946 brcmf_dbg(ERROR
, "brcmf_net_attach failed, err %d\n",
950 brcmf_dbg(TRACE
, " ==== pid:%x, net_device for if:%s created ===\n",
951 current
->pid
, ifp
->ndev
->name
);
958 free_netdev(ifp
->ndev
);
960 drvr_priv
->iflist
[ifp
->idx
] = NULL
;
969 void brcmf_del_if(struct brcmf_info
*drvr_priv
, int ifidx
)
971 struct brcmf_if
*ifp
;
973 brcmf_dbg(TRACE
, "idx %d\n", ifidx
);
975 ifp
= drvr_priv
->iflist
[ifidx
];
977 brcmf_dbg(ERROR
, "Null interface\n");
981 ifp
->state
= BRCMF_E_IF_DEL
;
983 if (ifp
->ndev
!= NULL
) {
984 netif_stop_queue(ifp
->ndev
);
985 unregister_netdev(ifp
->ndev
);
986 free_netdev(ifp
->ndev
);
987 drvr_priv
->iflist
[ifidx
] = NULL
;
992 struct brcmf_pub
*brcmf_attach(struct brcmf_bus
*bus
, uint bus_hdrlen
)
994 struct brcmf_info
*drvr_priv
= NULL
;
995 struct net_device
*ndev
;
997 brcmf_dbg(TRACE
, "Enter\n");
999 /* Allocate netdev, including space for private structure */
1000 ndev
= alloc_netdev(sizeof(drvr_priv
), "wlan%d", ether_setup
);
1002 brcmf_dbg(ERROR
, "OOM - alloc_netdev\n");
1006 /* Allocate primary brcmf_info */
1007 drvr_priv
= kzalloc(sizeof(struct brcmf_info
), GFP_ATOMIC
);
1012 * Save the brcmf_info into the priv
1014 memcpy(netdev_priv(ndev
), &drvr_priv
, sizeof(drvr_priv
));
1016 if (brcmf_add_if(drvr_priv
, 0, ndev
, ndev
->name
, NULL
, 0, 0) ==
1020 ndev
->netdev_ops
= NULL
;
1021 mutex_init(&drvr_priv
->proto_block
);
1023 /* Link to info module */
1024 drvr_priv
->pub
.info
= drvr_priv
;
1026 /* Link to bus module */
1027 drvr_priv
->pub
.bus
= bus
;
1028 drvr_priv
->pub
.hdrlen
= bus_hdrlen
;
1030 /* Attach and link in the protocol */
1031 if (brcmf_proto_attach(&drvr_priv
->pub
) != 0) {
1032 brcmf_dbg(ERROR
, "brcmf_prot_attach failed\n");
1036 /* Attach and link in the cfg80211 */
1037 drvr_priv
->pub
.config
=
1038 brcmf_cfg80211_attach(ndev
,
1039 brcmf_bus_get_device(bus
),
1041 if (drvr_priv
->pub
.config
== NULL
) {
1042 brcmf_dbg(ERROR
, "wl_cfg80211_attach failed\n");
1046 INIT_WORK(&drvr_priv
->setmacaddr_work
, _brcmf_set_mac_address
);
1047 INIT_WORK(&drvr_priv
->multicast_work
, _brcmf_set_multicast_list
);
1050 * Save the brcmf_info into the priv
1052 memcpy(netdev_priv(ndev
), &drvr_priv
, sizeof(drvr_priv
));
1054 return &drvr_priv
->pub
;
1060 brcmf_detach(&drvr_priv
->pub
);
1065 int brcmf_bus_start(struct brcmf_pub
*drvr
)
1068 struct brcmf_info
*drvr_priv
= drvr
->info
;
1069 /* Room for "event_msgs" + '\0' + bitvec */
1070 char iovbuf
[BRCMF_EVENTING_MASK_LEN
+ 12];
1072 brcmf_dbg(TRACE
, "\n");
1074 /* Bring up the bus */
1075 ret
= brcmf_sdbrcm_bus_init(&drvr_priv
->pub
);
1077 brcmf_dbg(ERROR
, "brcmf_sdbrcm_bus_init failed %d\n", ret
);
1081 /* If bus is not ready, can't come up */
1082 if (drvr_priv
->pub
.busstate
!= BRCMF_BUS_DATA
) {
1083 brcmf_dbg(ERROR
, "failed bus is not ready\n");
1087 brcmf_c_mkiovar("event_msgs", drvr
->eventmask
, BRCMF_EVENTING_MASK_LEN
,
1088 iovbuf
, sizeof(iovbuf
));
1089 brcmf_proto_cdc_query_dcmd(drvr
, 0, BRCMF_C_GET_VAR
, iovbuf
,
1091 memcpy(drvr
->eventmask
, iovbuf
, BRCMF_EVENTING_MASK_LEN
);
1093 setbit(drvr
->eventmask
, BRCMF_E_SET_SSID
);
1094 setbit(drvr
->eventmask
, BRCMF_E_PRUNE
);
1095 setbit(drvr
->eventmask
, BRCMF_E_AUTH
);
1096 setbit(drvr
->eventmask
, BRCMF_E_REASSOC
);
1097 setbit(drvr
->eventmask
, BRCMF_E_REASSOC_IND
);
1098 setbit(drvr
->eventmask
, BRCMF_E_DEAUTH_IND
);
1099 setbit(drvr
->eventmask
, BRCMF_E_DISASSOC_IND
);
1100 setbit(drvr
->eventmask
, BRCMF_E_DISASSOC
);
1101 setbit(drvr
->eventmask
, BRCMF_E_JOIN
);
1102 setbit(drvr
->eventmask
, BRCMF_E_ASSOC_IND
);
1103 setbit(drvr
->eventmask
, BRCMF_E_PSK_SUP
);
1104 setbit(drvr
->eventmask
, BRCMF_E_LINK
);
1105 setbit(drvr
->eventmask
, BRCMF_E_NDIS_LINK
);
1106 setbit(drvr
->eventmask
, BRCMF_E_MIC_ERROR
);
1107 setbit(drvr
->eventmask
, BRCMF_E_PMKID_CACHE
);
1108 setbit(drvr
->eventmask
, BRCMF_E_TXFAIL
);
1109 setbit(drvr
->eventmask
, BRCMF_E_JOIN_START
);
1110 setbit(drvr
->eventmask
, BRCMF_E_SCAN_COMPLETE
);
1112 /* enable dongle roaming event */
1114 drvr
->pktfilter_count
= 1;
1115 /* Setup filter to allow only unicast */
1116 drvr
->pktfilter
[0] = "100 0 0 0 0x01 0x00";
1118 /* Bus is ready, do any protocol initialization */
1119 ret
= brcmf_proto_init(&drvr_priv
->pub
);
1126 static struct net_device_ops brcmf_netdev_ops_pri
= {
1127 .ndo_open
= brcmf_netdev_open
,
1128 .ndo_stop
= brcmf_netdev_stop
,
1129 .ndo_get_stats
= brcmf_netdev_get_stats
,
1130 .ndo_do_ioctl
= brcmf_netdev_ioctl_entry
,
1131 .ndo_start_xmit
= brcmf_netdev_start_xmit
,
1132 .ndo_set_mac_address
= brcmf_netdev_set_mac_address
,
1133 .ndo_set_rx_mode
= brcmf_netdev_set_multicast_list
1136 int brcmf_net_attach(struct brcmf_pub
*drvr
, int ifidx
)
1138 struct brcmf_info
*drvr_priv
= drvr
->info
;
1139 struct net_device
*ndev
;
1140 u8 temp_addr
[ETH_ALEN
] = {
1141 0x00, 0x90, 0x4c, 0x11, 0x22, 0x33};
1143 brcmf_dbg(TRACE
, "ifidx %d\n", ifidx
);
1145 ndev
= drvr_priv
->iflist
[ifidx
]->ndev
;
1146 ndev
->netdev_ops
= &brcmf_netdev_ops_pri
;
1149 * We have to use the primary MAC for virtual interfaces
1152 /* for virtual interfaces use the primary MAC */
1153 memcpy(temp_addr
, drvr_priv
->pub
.mac
, ETH_ALEN
);
1158 brcmf_dbg(TRACE
, "ACCESS POINT MAC:\n");
1159 /* ACCESSPOINT INTERFACE CASE */
1160 temp_addr
[0] |= 0X02; /* set bit 2 ,
1161 - Locally Administered address */
1164 ndev
->hard_header_len
= ETH_HLEN
+ drvr_priv
->pub
.hdrlen
;
1165 ndev
->ethtool_ops
= &brcmf_ethtool_ops
;
1167 drvr_priv
->pub
.rxsz
= ndev
->mtu
+ ndev
->hard_header_len
+
1168 drvr_priv
->pub
.hdrlen
;
1170 memcpy(ndev
->dev_addr
, temp_addr
, ETH_ALEN
);
1172 if (register_netdev(ndev
) != 0) {
1173 brcmf_dbg(ERROR
, "couldn't register the net device\n");
1177 brcmf_dbg(INFO
, "%s: Broadcom Dongle Host Driver\n", ndev
->name
);
1182 ndev
->netdev_ops
= NULL
;
1186 static void brcmf_bus_detach(struct brcmf_pub
*drvr
)
1188 struct brcmf_info
*drvr_priv
;
1190 brcmf_dbg(TRACE
, "Enter\n");
1193 drvr_priv
= drvr
->info
;
1195 /* Stop the protocol module */
1196 brcmf_proto_stop(&drvr_priv
->pub
);
1198 /* Stop the bus module */
1199 brcmf_sdbrcm_bus_stop(drvr_priv
->pub
.bus
);
1204 void brcmf_detach(struct brcmf_pub
*drvr
)
1206 struct brcmf_info
*drvr_priv
;
1208 brcmf_dbg(TRACE
, "Enter\n");
1211 drvr_priv
= drvr
->info
;
1213 struct brcmf_if
*ifp
;
1216 for (i
= 1; i
< BRCMF_MAX_IFS
; i
++)
1217 if (drvr_priv
->iflist
[i
])
1218 brcmf_del_if(drvr_priv
, i
);
1220 ifp
= drvr_priv
->iflist
[0];
1221 if (ifp
->ndev
->netdev_ops
== &brcmf_netdev_ops_pri
) {
1223 brcmf_netdev_stop(ifp
->ndev
);
1225 unregister_netdev(ifp
->ndev
);
1228 cancel_work_sync(&drvr_priv
->setmacaddr_work
);
1229 cancel_work_sync(&drvr_priv
->multicast_work
);
1231 brcmf_bus_detach(drvr
);
1234 brcmf_proto_detach(drvr
);
1236 brcmf_cfg80211_detach(drvr
->config
);
1238 free_netdev(ifp
->ndev
);
1245 static void __exit
brcmf_module_cleanup(void)
1247 brcmf_dbg(TRACE
, "Enter\n");
1249 brcmf_bus_unregister();
1252 static int __init
brcmf_module_init(void)
1256 brcmf_dbg(TRACE
, "Enter\n");
1258 error
= brcmf_bus_register();
1261 brcmf_dbg(ERROR
, "brcmf_bus_register failed\n");
1270 module_init(brcmf_module_init
);
1271 module_exit(brcmf_module_cleanup
);
1273 int brcmf_os_proto_block(struct brcmf_pub
*drvr
)
1275 struct brcmf_info
*drvr_priv
= drvr
->info
;
1278 mutex_lock(&drvr_priv
->proto_block
);
1284 int brcmf_os_proto_unblock(struct brcmf_pub
*drvr
)
1286 struct brcmf_info
*drvr_priv
= drvr
->info
;
1289 mutex_unlock(&drvr_priv
->proto_block
);
1296 static int brcmf_get_pend_8021x_cnt(struct brcmf_info
*drvr_priv
)
1298 return atomic_read(&drvr_priv
->pend_8021x_cnt
);
1301 #define MAX_WAIT_FOR_8021X_TX 10
1303 int brcmf_netdev_wait_pend8021x(struct net_device
*ndev
)
1305 struct brcmf_info
*drvr_priv
= *(struct brcmf_info
**)netdev_priv(ndev
);
1306 int timeout
= 10 * HZ
/ 1000;
1307 int ntimes
= MAX_WAIT_FOR_8021X_TX
;
1308 int pend
= brcmf_get_pend_8021x_cnt(drvr_priv
);
1310 while (ntimes
&& pend
) {
1312 set_current_state(TASK_INTERRUPTIBLE
);
1313 schedule_timeout(timeout
);
1314 set_current_state(TASK_RUNNING
);
1317 pend
= brcmf_get_pend_8021x_cnt(drvr_priv
);
1323 int brcmf_write_to_file(struct brcmf_pub
*drvr
, const u8
*buf
, int size
)
1327 mm_segment_t old_fs
;
1330 /* change to KERNEL_DS address limit */
1334 /* open file to write */
1335 fp
= filp_open("/tmp/mem_dump", O_WRONLY
| O_CREAT
, 0640);
1337 brcmf_dbg(ERROR
, "open file error\n");
1342 /* Write buf to file */
1343 fp
->f_op
->write(fp
, (char __user
*)buf
, size
, &pos
);
1346 /* free buf before return */
1348 /* close file before return */
1350 filp_close(fp
, current
->files
);
1351 /* restore previous address limit */