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staging: brcm80211: use address space qualifier in brcmfmac
[mirror_ubuntu-bionic-kernel.git] / drivers / staging / brcm80211 / brcmfmac / dhd_linux.c
1 /*
2 * Copyright (c) 2010 Broadcom Corporation
3 *
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.
7 *
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.
15 */
16
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>
29 #include <linux/fs.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>
35 #include <defs.h>
36 #include <brcmu_utils.h>
37 #include <brcmu_wifi.h>
38
39 #include "dhd.h"
40 #include "dhd_bus.h"
41 #include "dhd_proto.h"
42 #include "dhd_dbg.h"
43 #include "wl_cfg80211.h"
44 #include "bcmchip.h"
45
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");
50
51
52 /* Interface control information */
53 struct brcmf_if {
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 */
65 };
66
67 /* Local private structure (extension of pub) */
68 struct brcmf_info {
69 struct brcmf_pub pub;
70
71 /* OS/stack specifics */
72 struct brcmf_if *iflist[BRCMF_MAX_IFS];
73
74 struct mutex proto_block;
75
76 /* Thread to issue ioctl for multicast */
77 struct task_struct *sysioc_tsk;
78 wait_queue_head_t sysioc_waitq;
79 bool set_multicast;
80 bool set_macaddress;
81 u8 macvalue[ETH_ALEN];
82 atomic_t pend_8021x_cnt;
83 };
84
85 /* Error bits */
86 module_param(brcmf_msg_level, int, 0);
87
88 /* Spawn a thread for system ioctls (set mac, set mcast) */
89 uint brcmf_sysioc = true;
90 module_param(brcmf_sysioc, uint, 0);
91
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);
96
97 /* ARP offload enable */
98 uint brcmf_arp_enable = true;
99 module_param(brcmf_arp_enable, uint, 0);
100
101 /* Global Pkt filter enable control */
102 uint brcmf_pkt_filter_enable = true;
103 module_param(brcmf_pkt_filter_enable, uint, 0);
104
105 /* Pkt filter init setup */
106 uint brcmf_pkt_filter_init;
107 module_param(brcmf_pkt_filter_init, uint, 0);
108
109 /* Pkt filter mode control */
110 uint brcmf_master_mode = true;
111 module_param(brcmf_master_mode, uint, 0);
112
113 /* Contorl fw roaming */
114 uint brcmf_roam = 1;
115
116 /* Control radio state */
117 uint brcmf_radio_up = 1;
118
119 /* Network inteface name */
120 char iface_name[IFNAMSIZ] = "wlan";
121 module_param_string(iface_name, iface_name, IFNAMSIZ, 0);
122
123 static int brcmf_net2idx(struct brcmf_info *drvr_priv, struct net_device *net)
124 {
125 int i = 0;
126
127 while (i < BRCMF_MAX_IFS) {
128 if (drvr_priv->iflist[i] && (drvr_priv->iflist[i]->net == net))
129 return i;
130 i++;
131 }
132
133 return BRCMF_BAD_IF;
134 }
135
136 int brcmf_ifname2idx(struct brcmf_info *drvr_priv, char *name)
137 {
138 int i = BRCMF_MAX_IFS;
139
140 if (name == NULL || *name == '\0')
141 return 0;
142
143 while (--i > 0)
144 if (drvr_priv->iflist[i]
145 && !strncmp(drvr_priv->iflist[i]->name, name, IFNAMSIZ))
146 break;
147
148 brcmf_dbg(TRACE, "return idx %d for \"%s\"\n", i, name);
149
150 return i; /* default - the primary interface */
151 }
152
153 char *brcmf_ifname(struct brcmf_pub *drvr, int ifidx)
154 {
155 struct brcmf_info *drvr_priv = drvr->info;
156
157 if (ifidx < 0 || ifidx >= BRCMF_MAX_IFS) {
158 brcmf_dbg(ERROR, "ifidx %d out of range\n", ifidx);
159 return "<if_bad>";
160 }
161
162 if (drvr_priv->iflist[ifidx] == NULL) {
163 brcmf_dbg(ERROR, "null i/f %d\n", ifidx);
164 return "<if_null>";
165 }
166
167 if (drvr_priv->iflist[ifidx]->net)
168 return drvr_priv->iflist[ifidx]->net->name;
169
170 return "<if_none>";
171 }
172
173 static void _brcmf_set_multicast_list(struct brcmf_info *drvr_priv, int ifidx)
174 {
175 struct net_device *dev;
176 struct netdev_hw_addr *ha;
177 u32 allmulti, cnt;
178
179 struct brcmf_ioctl ioc;
180 char *buf, *bufp;
181 uint buflen;
182 int ret;
183
184 dev = drvr_priv->iflist[ifidx]->net;
185 cnt = netdev_mc_count(dev);
186
187 /* Determine initial value of allmulti flag */
188 allmulti = (dev->flags & IFF_ALLMULTI) ? true : false;
189
190 /* Send down the multicast list first. */
191
192 buflen = sizeof("mcast_list") + sizeof(cnt) + (cnt * ETH_ALEN);
193 bufp = buf = kmalloc(buflen, GFP_ATOMIC);
194 if (!bufp) {
195 brcmf_dbg(ERROR, "%s: out of memory for mcast_list, cnt %d\n",
196 brcmf_ifname(&drvr_priv->pub, ifidx), cnt);
197 return;
198 }
199
200 strcpy(bufp, "mcast_list");
201 bufp += strlen("mcast_list") + 1;
202
203 cnt = cpu_to_le32(cnt);
204 memcpy(bufp, &cnt, sizeof(cnt));
205 bufp += sizeof(cnt);
206
207 netdev_for_each_mc_addr(ha, dev) {
208 if (!cnt)
209 break;
210 memcpy(bufp, ha->addr, ETH_ALEN);
211 bufp += ETH_ALEN;
212 cnt--;
213 }
214
215 memset(&ioc, 0, sizeof(ioc));
216 ioc.cmd = BRCMF_C_SET_VAR;
217 ioc.buf = buf;
218 ioc.len = buflen;
219 ioc.set = true;
220
221 ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len);
222 if (ret < 0) {
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;
226 }
227
228 kfree(buf);
229
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...
233 */
234
235 buflen = sizeof("allmulti") + sizeof(allmulti);
236 buf = kmalloc(buflen, GFP_ATOMIC);
237 if (!buf) {
238 brcmf_dbg(ERROR, "%s: out of memory for allmulti\n",
239 brcmf_ifname(&drvr_priv->pub, ifidx));
240 return;
241 }
242 allmulti = cpu_to_le32(allmulti);
243
244 if (!brcmu_mkiovar
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);
249 kfree(buf);
250 return;
251 }
252
253 memset(&ioc, 0, sizeof(ioc));
254 ioc.cmd = BRCMF_C_SET_VAR;
255 ioc.buf = buf;
256 ioc.len = buflen;
257 ioc.set = true;
258
259 ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len);
260 if (ret < 0) {
261 brcmf_dbg(ERROR, "%s: set allmulti %d failed\n",
262 brcmf_ifname(&drvr_priv->pub, ifidx),
263 le32_to_cpu(allmulti));
264 }
265
266 kfree(buf);
267
268 /* Finally, pick up the PROMISC flag as well, like the NIC
269 driver does */
270
271 allmulti = (dev->flags & IFF_PROMISC) ? true : false;
272 allmulti = cpu_to_le32(allmulti);
273
274 memset(&ioc, 0, sizeof(ioc));
275 ioc.cmd = BRCMF_C_SET_PROMISC;
276 ioc.buf = &allmulti;
277 ioc.len = sizeof(allmulti);
278 ioc.set = true;
279
280 ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len);
281 if (ret < 0) {
282 brcmf_dbg(ERROR, "%s: set promisc %d failed\n",
283 brcmf_ifname(&drvr_priv->pub, ifidx),
284 le32_to_cpu(allmulti));
285 }
286 }
287
288 static int
289 _brcmf_set_mac_address(struct brcmf_info *drvr_priv, int ifidx, u8 *addr)
290 {
291 char buf[32];
292 struct brcmf_ioctl ioc;
293 int ret;
294
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));
299 return -1;
300 }
301 memset(&ioc, 0, sizeof(ioc));
302 ioc.cmd = BRCMF_C_SET_VAR;
303 ioc.buf = buf;
304 ioc.len = 32;
305 ioc.set = true;
306
307 ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len);
308 if (ret < 0)
309 brcmf_dbg(ERROR, "%s: set cur_etheraddr failed\n",
310 brcmf_ifname(&drvr_priv->pub, ifidx));
311 else
312 memcpy(drvr_priv->iflist[ifidx]->net->dev_addr, addr, ETH_ALEN);
313
314 return ret;
315 }
316
317 #ifdef SOFTAP
318 static struct net_device *ap_net_dev;
319 #endif
320
321 /* Virtual interfaces only ((ifp && ifp->info && ifp->idx == true) */
322 static void brcmf_op_if(struct brcmf_if *ifp)
323 {
324 struct brcmf_info *drvr_priv;
325 int ret = 0, err = 0;
326
327 drvr_priv = ifp->info;
328
329 brcmf_dbg(TRACE, "idx %d, state %d\n", ifp->idx, ifp->state);
330
331 switch (ifp->state) {
332 case BRCMF_E_IF_ADD:
333 /*
334 * Delete the existing interface before overwriting it
335 * in case we missed the BRCMF_E_IF_DEL event.
336 */
337 if (ifp->net != NULL) {
338 brcmf_dbg(ERROR, "ERROR: netdev:%s already exists, try free & unregister\n",
339 ifp->net->name);
340 netif_stop_queue(ifp->net);
341 unregister_netdev(ifp->net);
342 free_netdev(ifp->net);
343 }
344 /* Allocate etherdev, including space for private structure */
345 ifp->net = alloc_etherdev(sizeof(drvr_priv));
346 if (!ifp->net) {
347 brcmf_dbg(ERROR, "OOM - alloc_etherdev\n");
348 ret = -ENOMEM;
349 }
350 if (ret == 0) {
351 strcpy(ifp->net->name, ifp->name);
352 memcpy(netdev_priv(ifp->net), &drvr_priv,
353 sizeof(drvr_priv));
354 err = brcmf_net_attach(&drvr_priv->pub, ifp->idx);
355 if (err != 0) {
356 brcmf_dbg(ERROR, "brcmf_net_attach failed, err %d\n",
357 err);
358 ret = -EOPNOTSUPP;
359 } else {
360 #ifdef SOFTAP
361 /* semaphore that the soft AP CODE
362 waits on */
363 struct semaphore ap_eth_sema;
364
365 /* save ptr to wl0.1 netdev for use
366 in wl_iw.c */
367 ap_net_dev = ifp->net;
368 /* signal to the SOFTAP 'sleeper' thread,
369 wl0.1 is ready */
370 up(&ap_eth_sema);
371 #endif
372 brcmf_dbg(TRACE, " ==== pid:%x, net_device for if:%s created ===\n",
373 current->pid, ifp->net->name);
374 ifp->state = 0;
375 }
376 }
377 break;
378 case BRCMF_E_IF_DEL:
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()
384 is called */
385 }
386 break;
387 default:
388 brcmf_dbg(ERROR, "bad op %d\n", ifp->state);
389 break;
390 }
391
392 if (ret < 0) {
393 if (ifp->net)
394 free_netdev(ifp->net);
395
396 drvr_priv->iflist[ifp->idx] = NULL;
397 kfree(ifp);
398 #ifdef SOFTAP
399 if (ifp->net == ap_net_dev)
400 ap_net_dev = NULL; /* NULL SOFTAP global
401 wl0.1 as well */
402 #endif /* SOFTAP */
403 }
404 }
405
406 static int _brcmf_sysioc_thread(void *data)
407 {
408 struct brcmf_info *drvr_priv = (struct brcmf_info *) data;
409 int i;
410 #ifdef SOFTAP
411 bool in_ap = false;
412 #endif
413 DECLARE_WAITQUEUE(wait, current);
414 allow_signal(SIGTERM);
415
416 add_wait_queue(&drvr_priv->sysioc_waitq, &wait);
417 while (1) {
418 prepare_to_wait(&drvr_priv->sysioc_waitq, &wait,
419 TASK_INTERRUPTIBLE);
420
421 /* wait for event */
422 schedule();
423
424 if (kthread_should_stop())
425 break;
426
427 for (i = 0; i < BRCMF_MAX_IFS; i++) {
428 struct brcmf_if *ifentry = drvr_priv->iflist[i];
429 if (ifentry) {
430 #ifdef SOFTAP
431 in_ap = (ap_net_dev != NULL);
432 #endif /* SOFTAP */
433 if (ifentry->state)
434 brcmf_op_if(ifentry);
435 #ifdef SOFTAP
436 if (drvr_priv->iflist[i] == NULL) {
437 brcmf_dbg(TRACE, "interface %d removed!\n",
438 i);
439 continue;
440 }
441
442 if (in_ap && drvr_priv->set_macaddress) {
443 brcmf_dbg(TRACE, "attempt to set MAC for %s in AP Mode, blocked.\n",
444 ifentry->net->name);
445 drvr_priv->set_macaddress = false;
446 continue;
447 }
448
449 if (in_ap && drvr_priv->set_multicast) {
450 brcmf_dbg(TRACE, "attempt to set MULTICAST list for %s in AP Mode, blocked.\n",
451 ifentry->net->name);
452 drvr_priv->set_multicast = false;
453 continue;
454 }
455 #endif /* SOFTAP */
456 if (drvr_priv->set_multicast) {
457 drvr_priv->set_multicast = false;
458 _brcmf_set_multicast_list(drvr_priv, i);
459 }
460 if (drvr_priv->set_macaddress) {
461 drvr_priv->set_macaddress = false;
462 _brcmf_set_mac_address(drvr_priv, i,
463 drvr_priv->macvalue);
464 }
465 }
466 }
467 }
468 finish_wait(&drvr_priv->sysioc_waitq, &wait);
469 return 0;
470 }
471
472 static int brcmf_netdev_set_mac_address(struct net_device *dev, void *addr)
473 {
474 int ret = 0;
475
476 struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(dev);
477 struct sockaddr *sa = (struct sockaddr *)addr;
478 int ifidx;
479
480 ifidx = brcmf_net2idx(drvr_priv, dev);
481 if (ifidx == BRCMF_BAD_IF)
482 return -1;
483
484 memcpy(&drvr_priv->macvalue, sa->sa_data, ETH_ALEN);
485 drvr_priv->set_macaddress = true;
486 wake_up(&drvr_priv->sysioc_waitq);
487 return ret;
488 }
489
490 static void brcmf_netdev_set_multicast_list(struct net_device *dev)
491 {
492 struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(dev);
493 int ifidx;
494
495 ifidx = brcmf_net2idx(drvr_priv, dev);
496 if (ifidx == BRCMF_BAD_IF)
497 return;
498
499 drvr_priv->set_multicast = true;
500 wake_up(&drvr_priv->sysioc_waitq);
501 }
502
503 int brcmf_sendpkt(struct brcmf_pub *drvr, int ifidx, struct sk_buff *pktbuf)
504 {
505 struct brcmf_info *drvr_priv = drvr->info;
506
507 /* Reject if down */
508 if (!drvr->up || (drvr->busstate == BRCMF_BUS_DOWN))
509 return -ENODEV;
510
511 /* Update multicast statistic */
512 if (pktbuf->len >= ETH_ALEN) {
513 u8 *pktdata = (u8 *) (pktbuf->data);
514 struct ethhdr *eh = (struct ethhdr *)pktdata;
515
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);
520 }
521
522 /* If the protocol uses a data header, apply it */
523 brcmf_proto_hdrpush(drvr, ifidx, pktbuf);
524
525 /* Use bus module to send data frame */
526 return brcmf_sdbrcm_bus_txdata(drvr->bus, pktbuf);
527 }
528
529 static int brcmf_netdev_start_xmit(struct sk_buff *skb, struct net_device *net)
530 {
531 int ret;
532 struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(net);
533 int ifidx;
534
535 brcmf_dbg(TRACE, "Enter\n");
536
537 /* Reject if down */
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);
542 return -ENODEV;
543 }
544
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);
549 return -ENODEV;
550 }
551
552 /* Make sure there's enough room for any header */
553 if (skb_headroom(skb) < drvr_priv->pub.hdrlen) {
554 struct sk_buff *skb2;
555
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);
560 dev_kfree_skb(skb);
561 skb = skb2;
562 if (skb == NULL) {
563 brcmf_dbg(ERROR, "%s: skb_realloc_headroom failed\n",
564 brcmf_ifname(&drvr_priv->pub, ifidx));
565 ret = -ENOMEM;
566 goto done;
567 }
568 }
569
570 ret = brcmf_sendpkt(&drvr_priv->pub, ifidx, skb);
571
572 done:
573 if (ret)
574 drvr_priv->pub.dstats.tx_dropped++;
575 else
576 drvr_priv->pub.tx_packets++;
577
578 /* Return ok: we always eat the packet */
579 return 0;
580 }
581
582 void brcmf_txflowcontrol(struct brcmf_pub *drvr, int ifidx, bool state)
583 {
584 struct net_device *net;
585 struct brcmf_info *drvr_priv = drvr->info;
586
587 brcmf_dbg(TRACE, "Enter\n");
588
589 drvr->txoff = state;
590 net = drvr_priv->iflist[ifidx]->net;
591 if (state == ON)
592 netif_stop_queue(net);
593 else
594 netif_wake_queue(net);
595 }
596
597 static int brcmf_host_event(struct brcmf_info *drvr_priv, int *ifidx,
598 void *pktdata, struct brcmf_event_msg *event,
599 void **data)
600 {
601 int bcmerror = 0;
602
603 bcmerror = brcmf_c_host_event(drvr_priv, ifidx, pktdata, event, data);
604 if (bcmerror != 0)
605 return bcmerror;
606
607 if (drvr_priv->iflist[*ifidx]->net)
608 brcmf_cfg80211_event(drvr_priv->iflist[*ifidx]->net,
609 event, *data);
610
611 return bcmerror;
612 }
613
614 void brcmf_rx_frame(struct brcmf_pub *drvr, int ifidx, struct sk_buff *skb,
615 int numpkt)
616 {
617 struct brcmf_info *drvr_priv = drvr->info;
618 unsigned char *eth;
619 uint len;
620 void *data;
621 struct sk_buff *pnext, *save_pktbuf;
622 int i;
623 struct brcmf_if *ifp;
624 struct brcmf_event_msg event;
625
626 brcmf_dbg(TRACE, "Enter\n");
627
628 save_pktbuf = skb;
629
630 for (i = 0; skb && i < numpkt; i++, skb = pnext) {
631
632 pnext = skb->next;
633 skb->next = NULL;
634
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
642 * registration
643 * we set the 'net->hard_header_len' to ETH_HLEN + extra space
644 * required
645 * for BDC, Hardware header etc. and not just the ETH_HLEN
646 */
647 eth = skb->data;
648 len = skb->len;
649
650 ifp = drvr_priv->iflist[ifidx];
651 if (ifp == NULL)
652 ifp = drvr_priv->iflist[0];
653
654 skb->dev = ifp->net;
655 skb->protocol = eth_type_trans(skb, skb->dev);
656
657 if (skb->pkt_type == PACKET_MULTICAST)
658 drvr_priv->pub.rx_multicast++;
659
660 skb->data = eth;
661 skb->len = len;
662
663 /* Strip header, count, deliver upward */
664 skb_pull(skb, ETH_HLEN);
665
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,
669 skb_mac_header(skb),
670 &event, &data);
671
672 if (drvr_priv->iflist[ifidx] &&
673 !drvr_priv->iflist[ifidx]->state)
674 ifp = drvr_priv->iflist[ifidx];
675
676 if (ifp->net)
677 ifp->net->last_rx = jiffies;
678
679 drvr->dstats.rx_bytes += skb->len;
680 drvr->rx_packets++; /* Local count */
681
682 if (in_interrupt())
683 netif_rx(skb);
684 else
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
689 * to do it manually.
690 */
691 netif_rx_ni(skb);
692 }
693 }
694
695 void brcmf_txcomplete(struct brcmf_pub *drvr, struct sk_buff *txp, bool success)
696 {
697 uint ifidx;
698 struct brcmf_info *drvr_priv = drvr->info;
699 struct ethhdr *eh;
700 u16 type;
701
702 brcmf_proto_hdrpull(drvr, &ifidx, txp);
703
704 eh = (struct ethhdr *)(txp->data);
705 type = ntohs(eh->h_proto);
706
707 if (type == ETH_P_PAE)
708 atomic_dec(&drvr_priv->pend_8021x_cnt);
709
710 }
711
712 static struct net_device_stats *brcmf_netdev_get_stats(struct net_device *net)
713 {
714 struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(net);
715 struct brcmf_if *ifp;
716 int ifidx;
717
718 brcmf_dbg(TRACE, "Enter\n");
719
720 ifidx = brcmf_net2idx(drvr_priv, net);
721 if (ifidx == BRCMF_BAD_IF)
722 return NULL;
723
724 ifp = drvr_priv->iflist[ifidx];
725
726 if (drvr_priv->pub.up)
727 /* Use the protocol to get dongle stats */
728 brcmf_proto_dstats(&drvr_priv->pub);
729
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;
740
741 return &ifp->stats;
742 }
743
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)
747 {
748 struct brcmf_ioctl ioc;
749 char buf[32];
750 int ret;
751
752 memset(&ioc, 0, sizeof(ioc));
753
754 ioc.cmd = BRCMF_C_GET_VAR;
755 ioc.buf = buf;
756 ioc.len = (uint) sizeof(buf);
757 ioc.set = false;
758
759 strcpy(buf, "toe_ol");
760 ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len);
761 if (ret < 0) {
762 /* Check for older dongle image that doesn't support toe_ol */
763 if (ret == -EIO) {
764 brcmf_dbg(ERROR, "%s: toe not supported by device\n",
765 brcmf_ifname(&drvr_priv->pub, ifidx));
766 return -EOPNOTSUPP;
767 }
768
769 brcmf_dbg(INFO, "%s: could not get toe_ol: ret=%d\n",
770 brcmf_ifname(&drvr_priv->pub, ifidx), ret);
771 return ret;
772 }
773
774 memcpy(toe_ol, buf, sizeof(u32));
775 return 0;
776 }
777
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)
781 {
782 struct brcmf_ioctl ioc;
783 char buf[32];
784 int toe, ret;
785
786 memset(&ioc, 0, sizeof(ioc));
787
788 ioc.cmd = BRCMF_C_SET_VAR;
789 ioc.buf = buf;
790 ioc.len = (uint) sizeof(buf);
791 ioc.set = true;
792
793 /* Set toe_ol as requested */
794
795 strcpy(buf, "toe_ol");
796 memcpy(&buf[sizeof("toe_ol")], &toe_ol, sizeof(u32));
797
798 ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len);
799 if (ret < 0) {
800 brcmf_dbg(ERROR, "%s: could not set toe_ol: ret=%d\n",
801 brcmf_ifname(&drvr_priv->pub, ifidx), ret);
802 return ret;
803 }
804
805 /* Enable toe globally only if any components are enabled. */
806
807 toe = (toe_ol != 0);
808
809 strcpy(buf, "toe");
810 memcpy(&buf[sizeof("toe")], &toe, sizeof(u32));
811
812 ret = brcmf_proto_ioctl(&drvr_priv->pub, ifidx, &ioc, ioc.buf, ioc.len);
813 if (ret < 0) {
814 brcmf_dbg(ERROR, "%s: could not set toe: ret=%d\n",
815 brcmf_ifname(&drvr_priv->pub, ifidx), ret);
816 return ret;
817 }
818
819 return 0;
820 }
821
822 static void brcmf_ethtool_get_drvinfo(struct net_device *net,
823 struct ethtool_drvinfo *info)
824 {
825 struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(net);
826
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));
832 }
833
834 static struct ethtool_ops brcmf_ethtool_ops = {
835 .get_drvinfo = brcmf_ethtool_get_drvinfo
836 };
837
838 static int brcmf_ethtool(struct brcmf_info *drvr_priv, void __user *uaddr)
839 {
840 struct ethtool_drvinfo info;
841 char drvname[sizeof(info.driver)];
842 u32 cmd;
843 struct ethtool_value edata;
844 u32 toe_cmpnt, csum_dir;
845 int ret;
846
847 brcmf_dbg(TRACE, "Enter\n");
848
849 /* all ethtool calls start with a cmd word */
850 if (copy_from_user(&cmd, uaddr, sizeof(u32)))
851 return -EFAULT;
852
853 switch (cmd) {
854 case ETHTOOL_GDRVINFO:
855 /* Copy out any request driver name */
856 if (copy_from_user(&info, uaddr, sizeof(info)))
857 return -EFAULT;
858 strncpy(drvname, info.driver, sizeof(info.driver));
859 drvname[sizeof(info.driver) - 1] = '\0';
860
861 /* clear struct for return */
862 memset(&info, 0, sizeof(info));
863 info.cmd = cmd;
864
865 /* if requested, identify ourselves */
866 if (strcmp(drvname, "?dhd") == 0) {
867 sprintf(info.driver, "dhd");
868 strcpy(info.version, BRCMF_VERSION_STR);
869 }
870
871 /* otherwise, require dongle to be up */
872 else if (!drvr_priv->pub.up) {
873 brcmf_dbg(ERROR, "dongle is not up\n");
874 return -ENODEV;
875 }
876
877 /* finally, report dongle driver type */
878 else if (drvr_priv->pub.iswl)
879 sprintf(info.driver, "wl");
880 else
881 sprintf(info.driver, "xx");
882
883 sprintf(info.version, "%lu", drvr_priv->pub.drv_version);
884 if (copy_to_user(uaddr, &info, sizeof(info)))
885 return -EFAULT;
886 brcmf_dbg(CTL, "given %*s, returning %s\n",
887 (int)sizeof(drvname), drvname, info.driver);
888 break;
889
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);
894 if (ret < 0)
895 return ret;
896
897 csum_dir =
898 (cmd == ETHTOOL_GTXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
899
900 edata.cmd = cmd;
901 edata.data = (toe_cmpnt & csum_dir) ? 1 : 0;
902
903 if (copy_to_user(uaddr, &edata, sizeof(edata)))
904 return -EFAULT;
905 break;
906
907 /* Set toe offload components in dongle */
908 case ETHTOOL_SRXCSUM:
909 case ETHTOOL_STXCSUM:
910 if (copy_from_user(&edata, uaddr, sizeof(edata)))
911 return -EFAULT;
912
913 /* Read the current settings, update and write back */
914 ret = brcmf_toe_get(drvr_priv, 0, &toe_cmpnt);
915 if (ret < 0)
916 return ret;
917
918 csum_dir =
919 (cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
920
921 if (edata.data != 0)
922 toe_cmpnt |= csum_dir;
923 else
924 toe_cmpnt &= ~csum_dir;
925
926 ret = brcmf_toe_set(drvr_priv, 0, toe_cmpnt);
927 if (ret < 0)
928 return ret;
929
930 /* If setting TX checksum mode, tell Linux the new mode */
931 if (cmd == ETHTOOL_STXCSUM) {
932 if (edata.data)
933 drvr_priv->iflist[0]->net->features |=
934 NETIF_F_IP_CSUM;
935 else
936 drvr_priv->iflist[0]->net->features &=
937 ~NETIF_F_IP_CSUM;
938 }
939
940 break;
941
942 default:
943 return -EOPNOTSUPP;
944 }
945
946 return 0;
947 }
948
949 static int brcmf_netdev_ioctl_entry(struct net_device *net, struct ifreq *ifr,
950 int cmd)
951 {
952 struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(net);
953 struct brcmf_c_ioctl ioc;
954 int bcmerror = 0;
955 int buflen = 0;
956 void *buf = NULL;
957 uint driver = 0;
958 int ifidx;
959 bool is_set_key_cmd;
960
961 ifidx = brcmf_net2idx(drvr_priv, net);
962 brcmf_dbg(TRACE, "ifidx %d, cmd 0x%04x\n", ifidx, cmd);
963
964 if (ifidx == BRCMF_BAD_IF)
965 return -1;
966
967 if (cmd == SIOCETHTOOL)
968 return brcmf_ethtool(drvr_priv, ifr->ifr_data);
969
970 if (cmd != SIOCDEVPRIVATE)
971 return -EOPNOTSUPP;
972
973 memset(&ioc, 0, sizeof(ioc));
974
975 /* Copy the ioc control structure part of ioctl request */
976 if (copy_from_user(&ioc, ifr->ifr_data, sizeof(struct brcmf_ioctl))) {
977 bcmerror = -EINVAL;
978 goto done;
979 }
980
981 /* Copy out any buffer passed */
982 if (ioc.buf) {
983 buflen = min_t(int, ioc.len, BRCMF_IOCTL_MAXLEN);
984 /* optimization for direct ioctl calls from kernel */
985 /*
986 if (segment_eq(get_fs(), KERNEL_DS)) {
987 buf = ioc.buf;
988 } else {
989 */
990 {
991 buf = kmalloc(buflen, GFP_ATOMIC);
992 if (!buf) {
993 bcmerror = -ENOMEM;
994 goto done;
995 }
996 if (copy_from_user(buf, ioc.buf, buflen)) {
997 bcmerror = -EINVAL;
998 goto done;
999 }
1000 }
1001 }
1002
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)) {
1006 bcmerror = -EINVAL;
1007 goto done;
1008 }
1009
1010 if (!capable(CAP_NET_ADMIN)) {
1011 bcmerror = -EPERM;
1012 goto done;
1013 }
1014
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,
1018 buf, buflen);
1019 if (bcmerror)
1020 drvr_priv->pub.bcmerror = bcmerror;
1021 goto done;
1022 }
1023
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");
1027 bcmerror = -EIO;
1028 goto done;
1029 }
1030
1031 if (!drvr_priv->pub.iswl) {
1032 bcmerror = -EIO;
1033 goto done;
1034 }
1035
1036 /*
1037 * Intercept BRCMF_C_SET_KEY IOCTL - serialize M4 send and
1038 * set key IOCTL to prevent M4 encryption.
1039 */
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))));
1045 if (is_set_key_cmd)
1046 brcmf_netdev_wait_pend8021x(net);
1047
1048 bcmerror = brcmf_proto_ioctl(&drvr_priv->pub, ifidx,
1049 (struct brcmf_ioctl *)&ioc, buf, buflen);
1050
1051 done:
1052 if (!bcmerror && buf && ioc.buf) {
1053 if (copy_to_user(ioc.buf, buf, buflen))
1054 bcmerror = -EFAULT;
1055 }
1056
1057 kfree(buf);
1058
1059 if (bcmerror > 0)
1060 bcmerror = 0;
1061
1062 return bcmerror;
1063 }
1064
1065 static int brcmf_netdev_stop(struct net_device *net)
1066 {
1067 struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(net);
1068
1069 brcmf_dbg(TRACE, "Enter\n");
1070 brcmf_cfg80211_down();
1071 if (drvr_priv->pub.up == 0)
1072 return 0;
1073
1074 /* Set state and stop OS transmissions */
1075 drvr_priv->pub.up = 0;
1076 netif_stop_queue(net);
1077
1078 return 0;
1079 }
1080
1081 static int brcmf_netdev_open(struct net_device *net)
1082 {
1083 struct brcmf_info *drvr_priv = *(struct brcmf_info **) netdev_priv(net);
1084 u32 toe_ol;
1085 int ifidx = brcmf_net2idx(drvr_priv, net);
1086 s32 ret = 0;
1087
1088 brcmf_dbg(TRACE, "ifidx %d\n", ifidx);
1089
1090 if (ifidx == 0) { /* do it only for primary eth0 */
1091
1092 /* try to bring up bus */
1093 ret = brcmf_bus_start(&drvr_priv->pub);
1094 if (ret != 0) {
1095 brcmf_dbg(ERROR, "failed with code %d\n", ret);
1096 return -1;
1097 }
1098 atomic_set(&drvr_priv->pend_8021x_cnt, 0);
1099
1100 memcpy(net->dev_addr, drvr_priv->pub.mac, ETH_ALEN);
1101
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 |=
1106 NETIF_F_IP_CSUM;
1107 else
1108 drvr_priv->iflist[ifidx]->net->features &=
1109 ~NETIF_F_IP_CSUM;
1110 }
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");
1116 return -1;
1117 }
1118
1119 return ret;
1120 }
1121
1122 int
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)
1125 {
1126 struct brcmf_if *ifp;
1127
1128 brcmf_dbg(TRACE, "idx %d, handle->%p\n", ifidx, net);
1129
1130 ifp = drvr_priv->iflist[ifidx];
1131 if (!ifp) {
1132 ifp = kmalloc(sizeof(struct brcmf_if), GFP_ATOMIC);
1133 if (!ifp) {
1134 brcmf_dbg(ERROR, "OOM - struct brcmf_if\n");
1135 return -ENOMEM;
1136 }
1137 }
1138
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);
1145
1146 if (net == NULL) {
1147 ifp->state = BRCMF_E_IF_ADD;
1148 ifp->idx = ifidx;
1149 wake_up(&drvr_priv->sysioc_waitq);
1150 } else
1151 ifp->net = net;
1152
1153 return 0;
1154 }
1155
1156 void brcmf_del_if(struct brcmf_info *drvr_priv, int ifidx)
1157 {
1158 struct brcmf_if *ifp;
1159
1160 brcmf_dbg(TRACE, "idx %d\n", ifidx);
1161
1162 ifp = drvr_priv->iflist[ifidx];
1163 if (!ifp) {
1164 brcmf_dbg(ERROR, "Null interface\n");
1165 return;
1166 }
1167
1168 ifp->state = BRCMF_E_IF_DEL;
1169 ifp->idx = ifidx;
1170 wake_up(&drvr_priv->sysioc_waitq);
1171 }
1172
1173 struct brcmf_pub *brcmf_attach(struct brcmf_bus *bus, uint bus_hdrlen)
1174 {
1175 struct brcmf_info *drvr_priv = NULL;
1176 struct net_device *net;
1177
1178 brcmf_dbg(TRACE, "Enter\n");
1179
1180 /* Allocate etherdev, including space for private structure */
1181 net = alloc_etherdev(sizeof(drvr_priv));
1182 if (!net) {
1183 brcmf_dbg(ERROR, "OOM - alloc_etherdev\n");
1184 goto fail;
1185 }
1186
1187 /* Allocate primary brcmf_info */
1188 drvr_priv = kzalloc(sizeof(struct brcmf_info), GFP_ATOMIC);
1189 if (!drvr_priv) {
1190 brcmf_dbg(ERROR, "OOM - alloc brcmf_info\n");
1191 goto fail;
1192 }
1193
1194 /*
1195 * Save the brcmf_info into the priv
1196 */
1197 memcpy(netdev_priv(net), &drvr_priv, sizeof(drvr_priv));
1198
1199 /* Set network interface name if it was provided as module parameter */
1200 if (iface_name[0]) {
1201 int len;
1202 char ch;
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");
1209 }
1210
1211 if (brcmf_add_if(drvr_priv, 0, net, net->name, NULL, 0, 0) ==
1212 BRCMF_BAD_IF)
1213 goto fail;
1214
1215 net->netdev_ops = NULL;
1216 mutex_init(&drvr_priv->proto_block);
1217
1218 /* Link to info module */
1219 drvr_priv->pub.info = drvr_priv;
1220
1221 /* Link to bus module */
1222 drvr_priv->pub.bus = bus;
1223 drvr_priv->pub.hdrlen = bus_hdrlen;
1224
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");
1228 goto fail;
1229 }
1230
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");
1234 goto fail;
1235 }
1236
1237 if (brcmf_sysioc) {
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)) {
1242 printk(KERN_WARNING
1243 "_brcmf_sysioc thread failed to start\n");
1244 drvr_priv->sysioc_tsk = NULL;
1245 }
1246 } else
1247 drvr_priv->sysioc_tsk = NULL;
1248
1249 /*
1250 * Save the brcmf_info into the priv
1251 */
1252 memcpy(netdev_priv(net), &drvr_priv, sizeof(drvr_priv));
1253
1254 return &drvr_priv->pub;
1255
1256 fail:
1257 if (net)
1258 free_netdev(net);
1259 if (drvr_priv)
1260 brcmf_detach(&drvr_priv->pub);
1261
1262 return NULL;
1263 }
1264
1265 int brcmf_bus_start(struct brcmf_pub *drvr)
1266 {
1267 int ret = -1;
1268 struct brcmf_info *drvr_priv = drvr->info;
1269 /* Room for "event_msgs" + '\0' + bitvec */
1270 char iovbuf[BRCMF_EVENTING_MASK_LEN + 12];
1271
1272 brcmf_dbg(TRACE, "\n");
1273
1274 /* Bring up the bus */
1275 ret = brcmf_sdbrcm_bus_init(&drvr_priv->pub, true);
1276 if (ret != 0) {
1277 brcmf_dbg(ERROR, "brcmf_sdbrcm_bus_init failed %d\n", ret);
1278 return ret;
1279 }
1280
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");
1284 return -ENODEV;
1285 }
1286
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,
1290 sizeof(iovbuf));
1291 memcpy(drvr->eventmask, iovbuf, BRCMF_EVENTING_MASK_LEN);
1292
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);
1311
1312 /* enable dongle roaming event */
1313
1314 drvr->pktfilter_count = 1;
1315 /* Setup filter to allow only unicast */
1316 drvr->pktfilter[0] = "100 0 0 0 0x01 0x00";
1317
1318 /* Bus is ready, do any protocol initialization */
1319 ret = brcmf_proto_init(&drvr_priv->pub);
1320 if (ret < 0)
1321 return ret;
1322
1323 return 0;
1324 }
1325
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
1334 };
1335
1336 int brcmf_net_attach(struct brcmf_pub *drvr, int ifidx)
1337 {
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};
1342
1343 brcmf_dbg(TRACE, "ifidx %d\n", ifidx);
1344
1345 net = drvr_priv->iflist[ifidx]->net;
1346 net->netdev_ops = &brcmf_netdev_ops_pri;
1347
1348 /*
1349 * We have to use the primary MAC for virtual interfaces
1350 */
1351 if (ifidx != 0) {
1352 /* for virtual interfaces use the primary MAC */
1353 memcpy(temp_addr, drvr_priv->pub.mac, ETH_ALEN);
1354
1355 }
1356
1357 if (ifidx == 1) {
1358 brcmf_dbg(TRACE, "ACCESS POINT MAC:\n");
1359 /* ACCESSPOINT INTERFACE CASE */
1360 temp_addr[0] |= 0X02; /* set bit 2 ,
1361 - Locally Administered address */
1362
1363 }
1364 net->hard_header_len = ETH_HLEN + drvr_priv->pub.hdrlen;
1365 net->ethtool_ops = &brcmf_ethtool_ops;
1366
1367 drvr_priv->pub.rxsz = net->mtu + net->hard_header_len +
1368 drvr_priv->pub.hdrlen;
1369
1370 memcpy(net->dev_addr, temp_addr, ETH_ALEN);
1371
1372 if (register_netdev(net) != 0) {
1373 brcmf_dbg(ERROR, "couldn't register the net device\n");
1374 goto fail;
1375 }
1376
1377 brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", net->name);
1378
1379 return 0;
1380
1381 fail:
1382 net->netdev_ops = NULL;
1383 return -EBADE;
1384 }
1385
1386 static void brcmf_bus_detach(struct brcmf_pub *drvr)
1387 {
1388 struct brcmf_info *drvr_priv;
1389
1390 brcmf_dbg(TRACE, "Enter\n");
1391
1392 if (drvr) {
1393 drvr_priv = drvr->info;
1394 if (drvr_priv) {
1395 /* Stop the protocol module */
1396 brcmf_proto_stop(&drvr_priv->pub);
1397
1398 /* Stop the bus module */
1399 brcmf_sdbrcm_bus_stop(drvr_priv->pub.bus, true);
1400 }
1401 }
1402 }
1403
1404 void brcmf_detach(struct brcmf_pub *drvr)
1405 {
1406 struct brcmf_info *drvr_priv;
1407
1408 brcmf_dbg(TRACE, "Enter\n");
1409
1410 if (drvr) {
1411 drvr_priv = drvr->info;
1412 if (drvr_priv) {
1413 struct brcmf_if *ifp;
1414 int i;
1415
1416 for (i = 1; i < BRCMF_MAX_IFS; i++)
1417 if (drvr_priv->iflist[i])
1418 brcmf_del_if(drvr_priv, i);
1419
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);
1424 }
1425
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;
1430 }
1431
1432 brcmf_bus_detach(drvr);
1433
1434 if (drvr->prot)
1435 brcmf_proto_detach(drvr);
1436
1437 brcmf_cfg80211_detach();
1438
1439 free_netdev(ifp->net);
1440 kfree(ifp);
1441 kfree(drvr_priv);
1442 }
1443 }
1444 }
1445
1446 static void __exit brcmf_module_cleanup(void)
1447 {
1448 brcmf_dbg(TRACE, "Enter\n");
1449
1450 brcmf_bus_unregister();
1451 }
1452
1453 static int __init brcmf_module_init(void)
1454 {
1455 int error;
1456
1457 brcmf_dbg(TRACE, "Enter\n");
1458
1459 error = brcmf_bus_register();
1460
1461 if (error) {
1462 brcmf_dbg(ERROR, "brcmf_bus_register failed\n");
1463 goto failed;
1464 }
1465 return 0;
1466
1467 failed:
1468 return -EINVAL;
1469 }
1470
1471 module_init(brcmf_module_init);
1472 module_exit(brcmf_module_cleanup);
1473
1474 int brcmf_os_proto_block(struct brcmf_pub *drvr)
1475 {
1476 struct brcmf_info *drvr_priv = drvr->info;
1477
1478 if (drvr_priv) {
1479 mutex_lock(&drvr_priv->proto_block);
1480 return 1;
1481 }
1482 return 0;
1483 }
1484
1485 int brcmf_os_proto_unblock(struct brcmf_pub *drvr)
1486 {
1487 struct brcmf_info *drvr_priv = drvr->info;
1488
1489 if (drvr_priv) {
1490 mutex_unlock(&drvr_priv->proto_block);
1491 return 1;
1492 }
1493
1494 return 0;
1495 }
1496
1497 static int brcmf_get_pend_8021x_cnt(struct brcmf_info *drvr_priv)
1498 {
1499 return atomic_read(&drvr_priv->pend_8021x_cnt);
1500 }
1501
1502 #define MAX_WAIT_FOR_8021X_TX 10
1503
1504 int brcmf_netdev_wait_pend8021x(struct net_device *dev)
1505 {
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);
1510
1511 while (ntimes && pend) {
1512 if (pend) {
1513 set_current_state(TASK_INTERRUPTIBLE);
1514 schedule_timeout(timeout);
1515 set_current_state(TASK_RUNNING);
1516 ntimes--;
1517 }
1518 pend = brcmf_get_pend_8021x_cnt(drvr_priv);
1519 }
1520 return pend;
1521 }
1522
1523 #ifdef BCMDBG
1524 int brcmf_write_to_file(struct brcmf_pub *drvr, u8 *buf, int size)
1525 {
1526 int ret = 0;
1527 struct file *fp;
1528 mm_segment_t old_fs;
1529 loff_t pos = 0;
1530
1531 /* change to KERNEL_DS address limit */
1532 old_fs = get_fs();
1533 set_fs(KERNEL_DS);
1534
1535 /* open file to write */
1536 fp = filp_open("/tmp/mem_dump", O_WRONLY | O_CREAT, 0640);
1537 if (!fp) {
1538 brcmf_dbg(ERROR, "open file error\n");
1539 ret = -1;
1540 goto exit;
1541 }
1542
1543 /* Write buf to file */
1544 fp->f_op->write(fp, buf, size, &pos);
1545
1546 exit:
1547 /* free buf before return */
1548 kfree(buf);
1549 /* close file before return */
1550 if (fp)
1551 filp_close(fp, current->files);
1552 /* restore previous address limit */
1553 set_fs(old_fs);
1554
1555 return ret;
1556 }
1557 #endif /* BCMDBG */
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