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17#include <linux/kernel.h>
18#include <linux/etherdevice.h>
19#include <linux/module.h>
20#include <net/cfg80211.h>
21#include <net/rtnetlink.h>
22#include <brcmu_utils.h>
23#include <brcmu_wifi.h>
24
25#include "dhd.h"
26#include "dhd_bus.h"
27#include "dhd_proto.h"
28#include "dhd_dbg.h"
29#include "fwil_types.h"
30#include "p2p.h"
31#include "wl_cfg80211.h"
32#include "fwil.h"
33#include "fwsignal.h"
34
35MODULE_AUTHOR("Broadcom Corporation");
36MODULE_DESCRIPTION("Broadcom 802.11 wireless LAN fullmac driver.");
37MODULE_LICENSE("Dual BSD/GPL");
38
39#define MAX_WAIT_FOR_8021X_TX 50
40
41
42int brcmf_msg_level;
43module_param_named(debug, brcmf_msg_level, int, S_IRUSR | S_IWUSR);
44MODULE_PARM_DESC(debug, "level of debug output");
45
46
47static int brcmf_p2p_enable;
48#ifdef CONFIG_BRCMDBG
49module_param_named(p2pon, brcmf_p2p_enable, int, 0);
50MODULE_PARM_DESC(p2pon, "enable p2p management functionality");
51#endif
52
53char *brcmf_ifname(struct brcmf_pub *drvr, int ifidx)
54{
55 if (ifidx < 0 || ifidx >= BRCMF_MAX_IFS) {
56 brcmf_err("ifidx %d out of range\n", ifidx);
57 return "<if_bad>";
58 }
59
60 if (drvr->iflist[ifidx] == NULL) {
61 brcmf_err("null i/f %d\n", ifidx);
62 return "<if_null>";
63 }
64
65 if (drvr->iflist[ifidx]->ndev)
66 return drvr->iflist[ifidx]->ndev->name;
67
68 return "<if_none>";
69}
70
71static void _brcmf_set_multicast_list(struct work_struct *work)
72{
73 struct brcmf_if *ifp;
74 struct net_device *ndev;
75 struct netdev_hw_addr *ha;
76 u32 cmd_value, cnt;
77 __le32 cnt_le;
78 char *buf, *bufp;
79 u32 buflen;
80 s32 err;
81
82 ifp = container_of(work, struct brcmf_if, multicast_work);
83
84 brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
85
86 ndev = ifp->ndev;
87
88
89 cmd_value = (ndev->flags & IFF_ALLMULTI) ? true : false;
90
91
92 cnt = netdev_mc_count(ndev);
93 buflen = sizeof(cnt) + (cnt * ETH_ALEN);
94 buf = kmalloc(buflen, GFP_ATOMIC);
95 if (!buf)
96 return;
97 bufp = buf;
98
99 cnt_le = cpu_to_le32(cnt);
100 memcpy(bufp, &cnt_le, sizeof(cnt_le));
101 bufp += sizeof(cnt_le);
102
103 netdev_for_each_mc_addr(ha, ndev) {
104 if (!cnt)
105 break;
106 memcpy(bufp, ha->addr, ETH_ALEN);
107 bufp += ETH_ALEN;
108 cnt--;
109 }
110
111 err = brcmf_fil_iovar_data_set(ifp, "mcast_list", buf, buflen);
112 if (err < 0) {
113 brcmf_err("Setting mcast_list failed, %d\n", err);
114 cmd_value = cnt ? true : cmd_value;
115 }
116
117 kfree(buf);
118
119
120
121
122
123
124 err = brcmf_fil_iovar_int_set(ifp, "allmulti", cmd_value);
125 if (err < 0)
126 brcmf_err("Setting allmulti failed, %d\n", err);
127
128
129 cmd_value = (ndev->flags & IFF_PROMISC) ? true : false;
130 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PROMISC, cmd_value);
131 if (err < 0)
132 brcmf_err("Setting BRCMF_C_SET_PROMISC failed, %d\n",
133 err);
134}
135
136static void
137_brcmf_set_mac_address(struct work_struct *work)
138{
139 struct brcmf_if *ifp;
140 s32 err;
141
142 ifp = container_of(work, struct brcmf_if, setmacaddr_work);
143
144 brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
145
146 err = brcmf_fil_iovar_data_set(ifp, "cur_etheraddr", ifp->mac_addr,
147 ETH_ALEN);
148 if (err < 0) {
149 brcmf_err("Setting cur_etheraddr failed, %d\n", err);
150 } else {
151 brcmf_dbg(TRACE, "MAC address updated to %pM\n",
152 ifp->mac_addr);
153 memcpy(ifp->ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
154 }
155}
156
157static int brcmf_netdev_set_mac_address(struct net_device *ndev, void *addr)
158{
159 struct brcmf_if *ifp = netdev_priv(ndev);
160 struct sockaddr *sa = (struct sockaddr *)addr;
161
162 memcpy(&ifp->mac_addr, sa->sa_data, ETH_ALEN);
163 schedule_work(&ifp->setmacaddr_work);
164 return 0;
165}
166
167static void brcmf_netdev_set_multicast_list(struct net_device *ndev)
168{
169 struct brcmf_if *ifp = netdev_priv(ndev);
170
171 schedule_work(&ifp->multicast_work);
172}
173
174static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
175 struct net_device *ndev)
176{
177 int ret;
178 struct brcmf_if *ifp = netdev_priv(ndev);
179 struct brcmf_pub *drvr = ifp->drvr;
180 struct ethhdr *eh;
181
182 brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
183
184
185 if (drvr->bus_if->state != BRCMF_BUS_DATA) {
186 brcmf_err("xmit rejected state=%d\n", drvr->bus_if->state);
187 netif_stop_queue(ndev);
188 dev_kfree_skb(skb);
189 ret = -ENODEV;
190 goto done;
191 }
192
193 if (!drvr->iflist[ifp->bssidx]) {
194 brcmf_err("bad ifidx %d\n", ifp->bssidx);
195 netif_stop_queue(ndev);
196 dev_kfree_skb(skb);
197 ret = -ENODEV;
198 goto done;
199 }
200
201
202 if (skb_headroom(skb) < drvr->hdrlen) {
203 struct sk_buff *skb2;
204
205 brcmf_dbg(INFO, "%s: insufficient headroom\n",
206 brcmf_ifname(drvr, ifp->bssidx));
207 drvr->bus_if->tx_realloc++;
208 skb2 = skb_realloc_headroom(skb, drvr->hdrlen);
209 dev_kfree_skb(skb);
210 skb = skb2;
211 if (skb == NULL) {
212 brcmf_err("%s: skb_realloc_headroom failed\n",
213 brcmf_ifname(drvr, ifp->bssidx));
214 ret = -ENOMEM;
215 goto done;
216 }
217 }
218
219
220 if (skb->len < sizeof(*eh)) {
221 ret = -EINVAL;
222 dev_kfree_skb(skb);
223 goto done;
224 }
225
226 ret = brcmf_fws_process_skb(ifp, skb);
227
228done:
229 if (ret) {
230 ifp->stats.tx_dropped++;
231 } else {
232 ifp->stats.tx_packets++;
233 ifp->stats.tx_bytes += skb->len;
234 }
235
236
237 return NETDEV_TX_OK;
238}
239
240void brcmf_txflowblock_if(struct brcmf_if *ifp,
241 enum brcmf_netif_stop_reason reason, bool state)
242{
243 if (!ifp)
244 return;
245
246 brcmf_dbg(TRACE, "enter: idx=%d stop=0x%X reason=%d state=%d\n",
247 ifp->bssidx, ifp->netif_stop, reason, state);
248 if (state) {
249 if (!ifp->netif_stop)
250 netif_stop_queue(ifp->ndev);
251 ifp->netif_stop |= reason;
252 } else {
253 ifp->netif_stop &= ~reason;
254 if (!ifp->netif_stop)
255 netif_wake_queue(ifp->ndev);
256 }
257}
258
259void brcmf_txflowblock(struct device *dev, bool state)
260{
261 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
262 struct brcmf_pub *drvr = bus_if->drvr;
263 int i;
264
265 brcmf_dbg(TRACE, "Enter\n");
266
267 for (i = 0; i < BRCMF_MAX_IFS; i++)
268 brcmf_txflowblock_if(drvr->iflist[i],
269 BRCMF_NETIF_STOP_REASON_BLOCK_BUS, state);
270}
271
272void brcmf_rx_frames(struct device *dev, struct sk_buff_head *skb_list)
273{
274 unsigned char *eth;
275 uint len;
276 struct sk_buff *skb, *pnext;
277 struct brcmf_if *ifp;
278 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
279 struct brcmf_pub *drvr = bus_if->drvr;
280 u8 ifidx;
281 int ret;
282
283 brcmf_dbg(TRACE, "Enter\n");
284
285 skb_queue_walk_safe(skb_list, skb, pnext) {
286 skb_unlink(skb, skb_list);
287
288
289 ret = brcmf_proto_hdrpull(drvr, drvr->fw_signals, &ifidx, skb);
290 ifp = drvr->iflist[ifidx];
291
292 if (ret || !ifp || !ifp->ndev) {
293 if ((ret != -ENODATA) && ifp)
294 ifp->stats.rx_errors++;
295 brcmu_pkt_buf_free_skb(skb);
296 continue;
297 }
298
299
300
301
302
303
304
305
306
307
308
309
310
311 eth = skb->data;
312 len = skb->len;
313
314 skb->dev = ifp->ndev;
315 skb->protocol = eth_type_trans(skb, skb->dev);
316
317 if (skb->pkt_type == PACKET_MULTICAST)
318 ifp->stats.multicast++;
319
320 skb->data = eth;
321 skb->len = len;
322
323
324 skb_pull(skb, ETH_HLEN);
325
326
327 brcmf_fweh_process_skb(drvr, skb);
328
329 if (!(ifp->ndev->flags & IFF_UP)) {
330 brcmu_pkt_buf_free_skb(skb);
331 continue;
332 }
333
334 ifp->stats.rx_bytes += skb->len;
335 ifp->stats.rx_packets++;
336
337 if (in_interrupt())
338 netif_rx(skb);
339 else
340
341
342
343
344
345
346 netif_rx_ni(skb);
347 }
348}
349
350void brcmf_txfinalize(struct brcmf_pub *drvr, struct sk_buff *txp,
351 bool success)
352{
353 struct brcmf_if *ifp;
354 struct ethhdr *eh;
355 u8 ifidx;
356 u16 type;
357 int res;
358
359 res = brcmf_proto_hdrpull(drvr, false, &ifidx, txp);
360
361 ifp = drvr->iflist[ifidx];
362 if (!ifp)
363 goto done;
364
365 if (res == 0) {
366 eh = (struct ethhdr *)(txp->data);
367 type = ntohs(eh->h_proto);
368
369 if (type == ETH_P_PAE) {
370 atomic_dec(&ifp->pend_8021x_cnt);
371 if (waitqueue_active(&ifp->pend_8021x_wait))
372 wake_up(&ifp->pend_8021x_wait);
373 }
374 }
375 if (!success)
376 ifp->stats.tx_errors++;
377done:
378 brcmu_pkt_buf_free_skb(txp);
379}
380
381void brcmf_txcomplete(struct device *dev, struct sk_buff *txp, bool success)
382{
383 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
384 struct brcmf_pub *drvr = bus_if->drvr;
385
386
387 if (brcmf_fws_fc_active(drvr->fws)) {
388 if (!success)
389 brcmf_fws_bustxfail(drvr->fws, txp);
390 } else {
391 brcmf_txfinalize(drvr, txp, success);
392 }
393}
394
395static struct net_device_stats *brcmf_netdev_get_stats(struct net_device *ndev)
396{
397 struct brcmf_if *ifp = netdev_priv(ndev);
398
399 brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
400
401 return &ifp->stats;
402}
403
404
405
406
407
408static int brcmf_toe_set(struct brcmf_if *ifp, u32 toe_ol)
409{
410 s32 err;
411
412 err = brcmf_fil_iovar_int_set(ifp, "toe_ol", toe_ol);
413 if (err < 0) {
414 brcmf_err("Setting toe_ol failed, %d\n", err);
415 return err;
416 }
417
418 err = brcmf_fil_iovar_int_set(ifp, "toe", (toe_ol != 0));
419 if (err < 0)
420 brcmf_err("Setting toe failed, %d\n", err);
421
422 return err;
423
424}
425
426static void brcmf_ethtool_get_drvinfo(struct net_device *ndev,
427 struct ethtool_drvinfo *info)
428{
429 struct brcmf_if *ifp = netdev_priv(ndev);
430 struct brcmf_pub *drvr = ifp->drvr;
431
432 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
433 snprintf(info->version, sizeof(info->version), "%lu",
434 drvr->drv_version);
435 strlcpy(info->bus_info, dev_name(drvr->bus_if->dev),
436 sizeof(info->bus_info));
437}
438
439static const struct ethtool_ops brcmf_ethtool_ops = {
440 .get_drvinfo = brcmf_ethtool_get_drvinfo,
441};
442
443static int brcmf_ethtool(struct brcmf_if *ifp, void __user *uaddr)
444{
445 struct brcmf_pub *drvr = ifp->drvr;
446 struct ethtool_drvinfo info;
447 char drvname[sizeof(info.driver)];
448 u32 cmd;
449 struct ethtool_value edata;
450 u32 toe_cmpnt, csum_dir;
451 int ret;
452
453 brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
454
455
456 if (copy_from_user(&cmd, uaddr, sizeof(u32)))
457 return -EFAULT;
458
459 switch (cmd) {
460 case ETHTOOL_GDRVINFO:
461
462 if (copy_from_user(&info, uaddr, sizeof(info)))
463 return -EFAULT;
464 strncpy(drvname, info.driver, sizeof(info.driver));
465 drvname[sizeof(info.driver) - 1] = '\0';
466
467
468 memset(&info, 0, sizeof(info));
469 info.cmd = cmd;
470
471
472 if (strcmp(drvname, "?dhd") == 0) {
473 sprintf(info.driver, "dhd");
474 strcpy(info.version, BRCMF_VERSION_STR);
475 }
476
477 else
478 sprintf(info.driver, "wl");
479
480 sprintf(info.version, "%lu", drvr->drv_version);
481 if (copy_to_user(uaddr, &info, sizeof(info)))
482 return -EFAULT;
483 brcmf_dbg(TRACE, "given %*s, returning %s\n",
484 (int)sizeof(drvname), drvname, info.driver);
485 break;
486
487
488 case ETHTOOL_GRXCSUM:
489 case ETHTOOL_GTXCSUM:
490 ret = brcmf_fil_iovar_int_get(ifp, "toe_ol", &toe_cmpnt);
491 if (ret < 0)
492 return ret;
493
494 csum_dir =
495 (cmd == ETHTOOL_GTXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
496
497 edata.cmd = cmd;
498 edata.data = (toe_cmpnt & csum_dir) ? 1 : 0;
499
500 if (copy_to_user(uaddr, &edata, sizeof(edata)))
501 return -EFAULT;
502 break;
503
504
505 case ETHTOOL_SRXCSUM:
506 case ETHTOOL_STXCSUM:
507 if (copy_from_user(&edata, uaddr, sizeof(edata)))
508 return -EFAULT;
509
510
511 ret = brcmf_fil_iovar_int_get(ifp, "toe_ol", &toe_cmpnt);
512 if (ret < 0)
513 return ret;
514
515 csum_dir =
516 (cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
517
518 if (edata.data != 0)
519 toe_cmpnt |= csum_dir;
520 else
521 toe_cmpnt &= ~csum_dir;
522
523 ret = brcmf_toe_set(ifp, toe_cmpnt);
524 if (ret < 0)
525 return ret;
526
527
528 if (cmd == ETHTOOL_STXCSUM) {
529 if (edata.data)
530 ifp->ndev->features |= NETIF_F_IP_CSUM;
531 else
532 ifp->ndev->features &= ~NETIF_F_IP_CSUM;
533 }
534
535 break;
536
537 default:
538 return -EOPNOTSUPP;
539 }
540
541 return 0;
542}
543
544static int brcmf_netdev_ioctl_entry(struct net_device *ndev, struct ifreq *ifr,
545 int cmd)
546{
547 struct brcmf_if *ifp = netdev_priv(ndev);
548 struct brcmf_pub *drvr = ifp->drvr;
549
550 brcmf_dbg(TRACE, "Enter, idx=%d, cmd=0x%04x\n", ifp->bssidx, cmd);
551
552 if (!drvr->iflist[ifp->bssidx])
553 return -1;
554
555 if (cmd == SIOCETHTOOL)
556 return brcmf_ethtool(ifp, ifr->ifr_data);
557
558 return -EOPNOTSUPP;
559}
560
561static int brcmf_netdev_stop(struct net_device *ndev)
562{
563 struct brcmf_if *ifp = netdev_priv(ndev);
564
565 brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
566
567 brcmf_cfg80211_down(ndev);
568
569
570 netif_stop_queue(ndev);
571
572 return 0;
573}
574
575static int brcmf_netdev_open(struct net_device *ndev)
576{
577 struct brcmf_if *ifp = netdev_priv(ndev);
578 struct brcmf_pub *drvr = ifp->drvr;
579 struct brcmf_bus *bus_if = drvr->bus_if;
580 u32 toe_ol;
581 s32 ret = 0;
582
583 brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
584
585
586 if (bus_if->state != BRCMF_BUS_DATA) {
587 brcmf_err("failed bus is not ready\n");
588 return -EAGAIN;
589 }
590
591 atomic_set(&ifp->pend_8021x_cnt, 0);
592
593
594 if (brcmf_fil_iovar_int_get(ifp, "toe_ol", &toe_ol) >= 0
595 && (toe_ol & TOE_TX_CSUM_OL) != 0)
596 ndev->features |= NETIF_F_IP_CSUM;
597 else
598 ndev->features &= ~NETIF_F_IP_CSUM;
599
600
601 netif_start_queue(ndev);
602 if (brcmf_cfg80211_up(ndev)) {
603 brcmf_err("failed to bring up cfg80211\n");
604 return -1;
605 }
606
607 return ret;
608}
609
610static const struct net_device_ops brcmf_netdev_ops_pri = {
611 .ndo_open = brcmf_netdev_open,
612 .ndo_stop = brcmf_netdev_stop,
613 .ndo_get_stats = brcmf_netdev_get_stats,
614 .ndo_do_ioctl = brcmf_netdev_ioctl_entry,
615 .ndo_start_xmit = brcmf_netdev_start_xmit,
616 .ndo_set_mac_address = brcmf_netdev_set_mac_address,
617 .ndo_set_rx_mode = brcmf_netdev_set_multicast_list
618};
619
620int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked)
621{
622 struct brcmf_pub *drvr = ifp->drvr;
623 struct net_device *ndev;
624 s32 err;
625
626 brcmf_dbg(TRACE, "Enter, idx=%d mac=%pM\n", ifp->bssidx,
627 ifp->mac_addr);
628 ndev = ifp->ndev;
629
630
631 ndev->netdev_ops = &brcmf_netdev_ops_pri;
632
633 ndev->hard_header_len = ETH_HLEN + drvr->hdrlen;
634 ndev->ethtool_ops = &brcmf_ethtool_ops;
635
636 drvr->rxsz = ndev->mtu + ndev->hard_header_len +
637 drvr->hdrlen;
638
639
640 memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
641
642 INIT_WORK(&ifp->setmacaddr_work, _brcmf_set_mac_address);
643 INIT_WORK(&ifp->multicast_work, _brcmf_set_multicast_list);
644
645 if (rtnl_locked)
646 err = register_netdevice(ndev);
647 else
648 err = register_netdev(ndev);
649 if (err != 0) {
650 brcmf_err("couldn't register the net device\n");
651 goto fail;
652 }
653
654 brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
655
656 ndev->destructor = free_netdev;
657 return 0;
658
659fail:
660 drvr->iflist[ifp->bssidx] = NULL;
661 ndev->netdev_ops = NULL;
662 free_netdev(ndev);
663 return -EBADE;
664}
665
666static int brcmf_net_p2p_open(struct net_device *ndev)
667{
668 brcmf_dbg(TRACE, "Enter\n");
669
670 return brcmf_cfg80211_up(ndev);
671}
672
673static int brcmf_net_p2p_stop(struct net_device *ndev)
674{
675 brcmf_dbg(TRACE, "Enter\n");
676
677 return brcmf_cfg80211_down(ndev);
678}
679
680static int brcmf_net_p2p_do_ioctl(struct net_device *ndev,
681 struct ifreq *ifr, int cmd)
682{
683 brcmf_dbg(TRACE, "Enter\n");
684 return 0;
685}
686
687static netdev_tx_t brcmf_net_p2p_start_xmit(struct sk_buff *skb,
688 struct net_device *ndev)
689{
690 if (skb)
691 dev_kfree_skb_any(skb);
692
693 return NETDEV_TX_OK;
694}
695
696static const struct net_device_ops brcmf_netdev_ops_p2p = {
697 .ndo_open = brcmf_net_p2p_open,
698 .ndo_stop = brcmf_net_p2p_stop,
699 .ndo_do_ioctl = brcmf_net_p2p_do_ioctl,
700 .ndo_start_xmit = brcmf_net_p2p_start_xmit
701};
702
703static int brcmf_net_p2p_attach(struct brcmf_if *ifp)
704{
705 struct net_device *ndev;
706
707 brcmf_dbg(TRACE, "Enter, idx=%d mac=%pM\n", ifp->bssidx,
708 ifp->mac_addr);
709 ndev = ifp->ndev;
710
711 ndev->netdev_ops = &brcmf_netdev_ops_p2p;
712
713
714 memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
715
716 if (register_netdev(ndev) != 0) {
717 brcmf_err("couldn't register the p2p net device\n");
718 goto fail;
719 }
720
721 brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
722
723 return 0;
724
725fail:
726 ifp->drvr->iflist[ifp->bssidx] = NULL;
727 ndev->netdev_ops = NULL;
728 free_netdev(ndev);
729 return -EBADE;
730}
731
732struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bssidx, s32 ifidx,
733 char *name, u8 *mac_addr)
734{
735 struct brcmf_if *ifp;
736 struct net_device *ndev;
737
738 brcmf_dbg(TRACE, "Enter, idx=%d, ifidx=%d\n", bssidx, ifidx);
739
740 ifp = drvr->iflist[bssidx];
741
742
743
744
745 if (ifp) {
746 brcmf_err("ERROR: netdev:%s already exists\n",
747 ifp->ndev->name);
748 if (ifidx) {
749 netif_stop_queue(ifp->ndev);
750 unregister_netdev(ifp->ndev);
751 free_netdev(ifp->ndev);
752 drvr->iflist[bssidx] = NULL;
753 } else {
754 brcmf_err("ignore IF event\n");
755 return ERR_PTR(-EINVAL);
756 }
757 }
758
759 if (!brcmf_p2p_enable && bssidx == 1) {
760
761 brcmf_dbg(INFO, "allocate non-netdev interface\n");
762 ifp = kzalloc(sizeof(*ifp), GFP_KERNEL);
763 if (!ifp)
764 return ERR_PTR(-ENOMEM);
765 } else {
766 brcmf_dbg(INFO, "allocate netdev interface\n");
767
768 ndev = alloc_netdev(sizeof(*ifp), name, ether_setup);
769 if (!ndev)
770 return ERR_PTR(-ENOMEM);
771
772 ifp = netdev_priv(ndev);
773 ifp->ndev = ndev;
774 }
775
776 ifp->drvr = drvr;
777 drvr->iflist[bssidx] = ifp;
778 ifp->ifidx = ifidx;
779 ifp->bssidx = bssidx;
780
781 init_waitqueue_head(&ifp->pend_8021x_wait);
782
783 if (mac_addr != NULL)
784 memcpy(ifp->mac_addr, mac_addr, ETH_ALEN);
785
786 brcmf_dbg(TRACE, " ==== pid:%x, if:%s (%pM) created ===\n",
787 current->pid, name, ifp->mac_addr);
788
789 return ifp;
790}
791
792void brcmf_del_if(struct brcmf_pub *drvr, s32 bssidx)
793{
794 struct brcmf_if *ifp;
795
796 ifp = drvr->iflist[bssidx];
797 drvr->iflist[bssidx] = NULL;
798 if (!ifp) {
799 brcmf_err("Null interface, idx=%d\n", bssidx);
800 return;
801 }
802 brcmf_dbg(TRACE, "Enter, idx=%d, ifidx=%d\n", bssidx, ifp->ifidx);
803 if (ifp->ndev) {
804 if (bssidx == 0) {
805 if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
806 rtnl_lock();
807 brcmf_netdev_stop(ifp->ndev);
808 rtnl_unlock();
809 }
810 } else {
811 netif_stop_queue(ifp->ndev);
812 }
813
814 if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
815 cancel_work_sync(&ifp->setmacaddr_work);
816 cancel_work_sync(&ifp->multicast_work);
817 }
818
819 unregister_netdev(ifp->ndev);
820 if (bssidx == 0)
821 brcmf_cfg80211_detach(drvr->config);
822 } else {
823 kfree(ifp);
824 }
825}
826
827int brcmf_attach(uint bus_hdrlen, struct device *dev)
828{
829 struct brcmf_pub *drvr = NULL;
830 int ret = 0;
831
832 brcmf_dbg(TRACE, "Enter\n");
833
834
835 drvr = kzalloc(sizeof(struct brcmf_pub), GFP_ATOMIC);
836 if (!drvr)
837 return -ENOMEM;
838
839 mutex_init(&drvr->proto_block);
840
841
842 drvr->hdrlen = bus_hdrlen;
843 drvr->bus_if = dev_get_drvdata(dev);
844 drvr->bus_if->drvr = drvr;
845
846
847 brcmf_debugfs_attach(drvr);
848
849
850 ret = brcmf_proto_attach(drvr);
851 if (ret != 0) {
852 brcmf_err("brcmf_prot_attach failed\n");
853 goto fail;
854 }
855
856
857 brcmf_fweh_attach(drvr);
858
859 INIT_LIST_HEAD(&drvr->bus_if->dcmd_list);
860
861 return ret;
862
863fail:
864 brcmf_detach(dev);
865
866 return ret;
867}
868
869int brcmf_bus_start(struct device *dev)
870{
871 int ret = -1;
872 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
873 struct brcmf_pub *drvr = bus_if->drvr;
874 struct brcmf_if *ifp;
875 struct brcmf_if *p2p_ifp;
876
877 brcmf_dbg(TRACE, "\n");
878
879
880 ret = brcmf_bus_init(bus_if);
881 if (ret != 0) {
882 brcmf_err("brcmf_sdbrcm_bus_init failed %d\n", ret);
883 return ret;
884 }
885
886
887 ifp = brcmf_add_if(drvr, 0, 0, "wlan%d", NULL);
888 if (IS_ERR(ifp))
889 return PTR_ERR(ifp);
890
891 if (brcmf_p2p_enable)
892 p2p_ifp = brcmf_add_if(drvr, 1, 0, "p2p%d", NULL);
893 else
894 p2p_ifp = NULL;
895 if (IS_ERR(p2p_ifp))
896 p2p_ifp = NULL;
897
898
899 bus_if->state = BRCMF_BUS_DATA;
900
901
902 ret = brcmf_c_preinit_dcmds(ifp);
903 if (ret < 0)
904 goto fail;
905
906 drvr->fw_signals = true;
907 ret = brcmf_fws_init(drvr);
908 if (ret < 0)
909 goto fail;
910
911 brcmf_fws_add_interface(ifp);
912
913 drvr->config = brcmf_cfg80211_attach(drvr, bus_if->dev);
914 if (drvr->config == NULL) {
915 ret = -ENOMEM;
916 goto fail;
917 }
918
919 ret = brcmf_fweh_activate_events(ifp);
920 if (ret < 0)
921 goto fail;
922
923 ret = brcmf_net_attach(ifp, false);
924fail:
925 if (ret < 0) {
926 brcmf_err("failed: %d\n", ret);
927 if (drvr->config)
928 brcmf_cfg80211_detach(drvr->config);
929 if (drvr->fws) {
930 brcmf_fws_del_interface(ifp);
931 brcmf_fws_deinit(drvr);
932 }
933 if (drvr->iflist[0]) {
934 free_netdev(ifp->ndev);
935 drvr->iflist[0] = NULL;
936 }
937 if (p2p_ifp) {
938 free_netdev(p2p_ifp->ndev);
939 drvr->iflist[1] = NULL;
940 }
941 return ret;
942 }
943 if ((brcmf_p2p_enable) && (p2p_ifp))
944 if (brcmf_net_p2p_attach(p2p_ifp) < 0)
945 brcmf_p2p_enable = 0;
946
947 return 0;
948}
949
950static void brcmf_bus_detach(struct brcmf_pub *drvr)
951{
952 brcmf_dbg(TRACE, "Enter\n");
953
954 if (drvr) {
955
956 brcmf_proto_stop(drvr);
957
958
959 brcmf_bus_stop(drvr->bus_if);
960 }
961}
962
963void brcmf_dev_reset(struct device *dev)
964{
965 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
966 struct brcmf_pub *drvr = bus_if->drvr;
967
968 if (drvr == NULL)
969 return;
970
971 if (drvr->iflist[0])
972 brcmf_fil_cmd_int_set(drvr->iflist[0], BRCMF_C_TERMINATED, 1);
973}
974
975void brcmf_detach(struct device *dev)
976{
977 s32 i;
978 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
979 struct brcmf_pub *drvr = bus_if->drvr;
980
981 brcmf_dbg(TRACE, "Enter\n");
982
983 if (drvr == NULL)
984 return;
985
986
987 brcmf_fweh_detach(drvr);
988
989
990 for (i = BRCMF_MAX_IFS-1; i > -1; i--)
991 if (drvr->iflist[i]) {
992 brcmf_fws_del_interface(drvr->iflist[i]);
993 brcmf_del_if(drvr, i);
994 }
995
996 brcmf_bus_detach(drvr);
997
998 if (drvr->prot)
999 brcmf_proto_detach(drvr);
1000
1001 brcmf_fws_deinit(drvr);
1002
1003 brcmf_debugfs_detach(drvr);
1004 bus_if->drvr = NULL;
1005 kfree(drvr);
1006}
1007
1008static int brcmf_get_pend_8021x_cnt(struct brcmf_if *ifp)
1009{
1010 return atomic_read(&ifp->pend_8021x_cnt);
1011}
1012
1013int brcmf_netdev_wait_pend8021x(struct net_device *ndev)
1014{
1015 struct brcmf_if *ifp = netdev_priv(ndev);
1016 int err;
1017
1018 err = wait_event_timeout(ifp->pend_8021x_wait,
1019 !brcmf_get_pend_8021x_cnt(ifp),
1020 msecs_to_jiffies(MAX_WAIT_FOR_8021X_TX));
1021
1022 WARN_ON(!err);
1023
1024 return !err;
1025}
1026
1027
1028
1029
1030u32 brcmf_get_chip_info(struct brcmf_if *ifp)
1031{
1032 struct brcmf_bus *bus = ifp->drvr->bus_if;
1033
1034 return bus->chip << 4 | bus->chiprev;
1035}
1036
1037static void brcmf_driver_init(struct work_struct *work)
1038{
1039 brcmf_debugfs_init();
1040
1041#ifdef CONFIG_BRCMFMAC_SDIO
1042 brcmf_sdio_init();
1043#endif
1044#ifdef CONFIG_BRCMFMAC_USB
1045 brcmf_usb_init();
1046#endif
1047}
1048static DECLARE_WORK(brcmf_driver_work, brcmf_driver_init);
1049
1050static int __init brcmfmac_module_init(void)
1051{
1052 if (!schedule_work(&brcmf_driver_work))
1053 return -EBUSY;
1054
1055 return 0;
1056}
1057
1058static void __exit brcmfmac_module_exit(void)
1059{
1060 cancel_work_sync(&brcmf_driver_work);
1061
1062#ifdef CONFIG_BRCMFMAC_SDIO
1063 brcmf_sdio_exit();
1064#endif
1065#ifdef CONFIG_BRCMFMAC_USB
1066 brcmf_usb_exit();
1067#endif
1068 brcmf_debugfs_exit();
1069}
1070
1071module_init(brcmfmac_module_init);
1072module_exit(brcmfmac_module_exit);
1073