diff options
author | Arend van Spriel <arend@broadcom.com> | 2011-10-05 07:19:03 -0400 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2011-10-11 15:55:30 -0400 |
commit | 5b435de0d786869c95d1962121af0d7df2542009 (patch) | |
tree | 9b7cfbc4aa9f1ec0e719e3a0c677bd9f4e56540d /drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c | |
parent | 5f68a2b0a890d086e40fc7b55f4a0c32c28bc0d2 (diff) |
net: wireless: add brcm80211 drivers
Add the brcm80211 tree to drivers/net/wireless, and disable the version that's
in drivers/staging. This version includes the sources currently in staging,
plus any changes that have been sent out for review.
Sources in staging will be deleted in a followup patch.
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c')
-rw-r--r-- | drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c | 1354 |
1 files changed, 1354 insertions, 0 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c new file mode 100644 index 00000000000..99ba5e3e45f --- /dev/null +++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c | |||
@@ -0,0 +1,1354 @@ | |||
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 <net/rtnetlink.h> | ||
36 | #include <defs.h> | ||
37 | #include <brcmu_utils.h> | ||
38 | #include <brcmu_wifi.h> | ||
39 | |||
40 | #include "dhd.h" | ||
41 | #include "dhd_bus.h" | ||
42 | #include "dhd_proto.h" | ||
43 | #include "dhd_dbg.h" | ||
44 | #include "wl_cfg80211.h" | ||
45 | #include "bcmchip.h" | ||
46 | |||
47 | MODULE_AUTHOR("Broadcom Corporation"); | ||
48 | MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN fullmac driver."); | ||
49 | MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN fullmac cards"); | ||
50 | MODULE_LICENSE("Dual BSD/GPL"); | ||
51 | |||
52 | |||
53 | /* Interface control information */ | ||
54 | struct brcmf_if { | ||
55 | struct brcmf_info *info; /* back pointer to brcmf_info */ | ||
56 | /* OS/stack specifics */ | ||
57 | struct net_device *ndev; | ||
58 | struct net_device_stats stats; | ||
59 | int idx; /* iface idx in dongle */ | ||
60 | int state; /* interface state */ | ||
61 | u8 mac_addr[ETH_ALEN]; /* assigned MAC address */ | ||
62 | }; | ||
63 | |||
64 | /* Local private structure (extension of pub) */ | ||
65 | struct brcmf_info { | ||
66 | struct brcmf_pub pub; | ||
67 | |||
68 | /* OS/stack specifics */ | ||
69 | struct brcmf_if *iflist[BRCMF_MAX_IFS]; | ||
70 | |||
71 | struct mutex proto_block; | ||
72 | |||
73 | struct work_struct setmacaddr_work; | ||
74 | struct work_struct multicast_work; | ||
75 | u8 macvalue[ETH_ALEN]; | ||
76 | atomic_t pend_8021x_cnt; | ||
77 | }; | ||
78 | |||
79 | /* Error bits */ | ||
80 | module_param(brcmf_msg_level, int, 0); | ||
81 | |||
82 | |||
83 | static int brcmf_net2idx(struct brcmf_info *drvr_priv, struct net_device *ndev) | ||
84 | { | ||
85 | int i = 0; | ||
86 | |||
87 | while (i < BRCMF_MAX_IFS) { | ||
88 | if (drvr_priv->iflist[i] && drvr_priv->iflist[i]->ndev == ndev) | ||
89 | return i; | ||
90 | i++; | ||
91 | } | ||
92 | |||
93 | return BRCMF_BAD_IF; | ||
94 | } | ||
95 | |||
96 | int brcmf_ifname2idx(struct brcmf_info *drvr_priv, char *name) | ||
97 | { | ||
98 | int i = BRCMF_MAX_IFS; | ||
99 | struct brcmf_if *ifp; | ||
100 | |||
101 | if (name == NULL || *name == '\0') | ||
102 | return 0; | ||
103 | |||
104 | while (--i > 0) { | ||
105 | ifp = drvr_priv->iflist[i]; | ||
106 | if (ifp && !strncmp(ifp->ndev->name, name, IFNAMSIZ)) | ||
107 | break; | ||
108 | } | ||
109 | |||
110 | brcmf_dbg(TRACE, "return idx %d for \"%s\"\n", i, name); | ||
111 | |||
112 | return i; /* default - the primary interface */ | ||
113 | } | ||
114 | |||
115 | char *brcmf_ifname(struct brcmf_pub *drvr, int ifidx) | ||
116 | { | ||
117 | struct brcmf_info *drvr_priv = drvr->info; | ||
118 | |||
119 | if (ifidx < 0 || ifidx >= BRCMF_MAX_IFS) { | ||
120 | brcmf_dbg(ERROR, "ifidx %d out of range\n", ifidx); | ||
121 | return "<if_bad>"; | ||
122 | } | ||
123 | |||
124 | if (drvr_priv->iflist[ifidx] == NULL) { | ||
125 | brcmf_dbg(ERROR, "null i/f %d\n", ifidx); | ||
126 | return "<if_null>"; | ||
127 | } | ||
128 | |||
129 | if (drvr_priv->iflist[ifidx]->ndev) | ||
130 | return drvr_priv->iflist[ifidx]->ndev->name; | ||
131 | |||
132 | return "<if_none>"; | ||
133 | } | ||
134 | |||
135 | static void _brcmf_set_multicast_list(struct work_struct *work) | ||
136 | { | ||
137 | struct net_device *ndev; | ||
138 | struct netdev_hw_addr *ha; | ||
139 | u32 allmulti, cnt; | ||
140 | __le32 cnt_le; | ||
141 | __le32 allmulti_le; | ||
142 | |||
143 | struct brcmf_dcmd dcmd; | ||
144 | char *buf, *bufp; | ||
145 | uint buflen; | ||
146 | int ret; | ||
147 | |||
148 | struct brcmf_info *drvr_priv = container_of(work, struct brcmf_info, | ||
149 | multicast_work); | ||
150 | |||
151 | ndev = drvr_priv->iflist[0]->ndev; | ||
152 | cnt = netdev_mc_count(ndev); | ||
153 | |||
154 | /* Determine initial value of allmulti flag */ | ||
155 | allmulti = (ndev->flags & IFF_ALLMULTI) ? true : false; | ||
156 | |||
157 | /* Send down the multicast list first. */ | ||
158 | |||
159 | buflen = sizeof("mcast_list") + sizeof(cnt) + (cnt * ETH_ALEN); | ||
160 | bufp = buf = kmalloc(buflen, GFP_ATOMIC); | ||
161 | if (!bufp) | ||
162 | return; | ||
163 | |||
164 | strcpy(bufp, "mcast_list"); | ||
165 | bufp += strlen("mcast_list") + 1; | ||
166 | |||
167 | cnt_le = cpu_to_le32(cnt); | ||
168 | memcpy(bufp, &cnt_le, sizeof(cnt)); | ||
169 | bufp += sizeof(cnt_le); | ||
170 | |||
171 | netdev_for_each_mc_addr(ha, ndev) { | ||
172 | if (!cnt) | ||
173 | break; | ||
174 | memcpy(bufp, ha->addr, ETH_ALEN); | ||
175 | bufp += ETH_ALEN; | ||
176 | cnt--; | ||
177 | } | ||
178 | |||
179 | memset(&dcmd, 0, sizeof(dcmd)); | ||
180 | dcmd.cmd = BRCMF_C_SET_VAR; | ||
181 | dcmd.buf = buf; | ||
182 | dcmd.len = buflen; | ||
183 | dcmd.set = true; | ||
184 | |||
185 | ret = brcmf_proto_dcmd(&drvr_priv->pub, 0, &dcmd, dcmd.len); | ||
186 | if (ret < 0) { | ||
187 | brcmf_dbg(ERROR, "%s: set mcast_list failed, cnt %d\n", | ||
188 | brcmf_ifname(&drvr_priv->pub, 0), cnt); | ||
189 | allmulti = cnt ? true : allmulti; | ||
190 | } | ||
191 | |||
192 | kfree(buf); | ||
193 | |||
194 | /* Now send the allmulti setting. This is based on the setting in the | ||
195 | * net_device flags, but might be modified above to be turned on if we | ||
196 | * were trying to set some addresses and dongle rejected it... | ||
197 | */ | ||
198 | |||
199 | buflen = sizeof("allmulti") + sizeof(allmulti); | ||
200 | buf = kmalloc(buflen, GFP_ATOMIC); | ||
201 | if (!buf) | ||
202 | return; | ||
203 | |||
204 | allmulti_le = cpu_to_le32(allmulti); | ||
205 | |||
206 | if (!brcmu_mkiovar | ||
207 | ("allmulti", (void *)&allmulti_le, | ||
208 | sizeof(allmulti_le), buf, buflen)) { | ||
209 | brcmf_dbg(ERROR, "%s: mkiovar failed for allmulti, datalen %d buflen %u\n", | ||
210 | brcmf_ifname(&drvr_priv->pub, 0), | ||
211 | (int)sizeof(allmulti), buflen); | ||
212 | kfree(buf); | ||
213 | return; | ||
214 | } | ||
215 | |||
216 | memset(&dcmd, 0, sizeof(dcmd)); | ||
217 | dcmd.cmd = BRCMF_C_SET_VAR; | ||
218 | dcmd.buf = buf; | ||
219 | dcmd.len = buflen; | ||
220 | dcmd.set = true; | ||
221 | |||
222 | ret = brcmf_proto_dcmd(&drvr_priv->pub, 0, &dcmd, dcmd.len); | ||
223 | if (ret < 0) { | ||
224 | brcmf_dbg(ERROR, "%s: set allmulti %d failed\n", | ||
225 | brcmf_ifname(&drvr_priv->pub, 0), | ||
226 | le32_to_cpu(allmulti_le)); | ||
227 | } | ||
228 | |||
229 | kfree(buf); | ||
230 | |||
231 | /* Finally, pick up the PROMISC flag as well, like the NIC | ||
232 | driver does */ | ||
233 | |||
234 | allmulti = (ndev->flags & IFF_PROMISC) ? true : false; | ||
235 | allmulti_le = cpu_to_le32(allmulti); | ||
236 | |||
237 | memset(&dcmd, 0, sizeof(dcmd)); | ||
238 | dcmd.cmd = BRCMF_C_SET_PROMISC; | ||
239 | dcmd.buf = &allmulti_le; | ||
240 | dcmd.len = sizeof(allmulti_le); | ||
241 | dcmd.set = true; | ||
242 | |||
243 | ret = brcmf_proto_dcmd(&drvr_priv->pub, 0, &dcmd, dcmd.len); | ||
244 | if (ret < 0) { | ||
245 | brcmf_dbg(ERROR, "%s: set promisc %d failed\n", | ||
246 | brcmf_ifname(&drvr_priv->pub, 0), | ||
247 | le32_to_cpu(allmulti_le)); | ||
248 | } | ||
249 | } | ||
250 | |||
251 | static void | ||
252 | _brcmf_set_mac_address(struct work_struct *work) | ||
253 | { | ||
254 | char buf[32]; | ||
255 | struct brcmf_dcmd dcmd; | ||
256 | int ret; | ||
257 | |||
258 | struct brcmf_info *drvr_priv = container_of(work, struct brcmf_info, | ||
259 | setmacaddr_work); | ||
260 | |||
261 | brcmf_dbg(TRACE, "enter\n"); | ||
262 | if (!brcmu_mkiovar("cur_etheraddr", (char *)drvr_priv->macvalue, | ||
263 | ETH_ALEN, buf, 32)) { | ||
264 | brcmf_dbg(ERROR, "%s: mkiovar failed for cur_etheraddr\n", | ||
265 | brcmf_ifname(&drvr_priv->pub, 0)); | ||
266 | return; | ||
267 | } | ||
268 | memset(&dcmd, 0, sizeof(dcmd)); | ||
269 | dcmd.cmd = BRCMF_C_SET_VAR; | ||
270 | dcmd.buf = buf; | ||
271 | dcmd.len = 32; | ||
272 | dcmd.set = true; | ||
273 | |||
274 | ret = brcmf_proto_dcmd(&drvr_priv->pub, 0, &dcmd, dcmd.len); | ||
275 | if (ret < 0) | ||
276 | brcmf_dbg(ERROR, "%s: set cur_etheraddr failed\n", | ||
277 | brcmf_ifname(&drvr_priv->pub, 0)); | ||
278 | else | ||
279 | memcpy(drvr_priv->iflist[0]->ndev->dev_addr, | ||
280 | drvr_priv->macvalue, ETH_ALEN); | ||
281 | |||
282 | return; | ||
283 | } | ||
284 | |||
285 | static int brcmf_netdev_set_mac_address(struct net_device *ndev, void *addr) | ||
286 | { | ||
287 | struct brcmf_info *drvr_priv = *(struct brcmf_info **) | ||
288 | netdev_priv(ndev); | ||
289 | struct sockaddr *sa = (struct sockaddr *)addr; | ||
290 | int ifidx; | ||
291 | |||
292 | ifidx = brcmf_net2idx(drvr_priv, ndev); | ||
293 | if (ifidx == BRCMF_BAD_IF) | ||
294 | return -1; | ||
295 | |||
296 | memcpy(&drvr_priv->macvalue, sa->sa_data, ETH_ALEN); | ||
297 | schedule_work(&drvr_priv->setmacaddr_work); | ||
298 | return 0; | ||
299 | } | ||
300 | |||
301 | static void brcmf_netdev_set_multicast_list(struct net_device *ndev) | ||
302 | { | ||
303 | struct brcmf_info *drvr_priv = *(struct brcmf_info **) | ||
304 | netdev_priv(ndev); | ||
305 | int ifidx; | ||
306 | |||
307 | ifidx = brcmf_net2idx(drvr_priv, ndev); | ||
308 | if (ifidx == BRCMF_BAD_IF) | ||
309 | return; | ||
310 | |||
311 | schedule_work(&drvr_priv->multicast_work); | ||
312 | } | ||
313 | |||
314 | int brcmf_sendpkt(struct brcmf_pub *drvr, int ifidx, struct sk_buff *pktbuf) | ||
315 | { | ||
316 | struct brcmf_info *drvr_priv = drvr->info; | ||
317 | |||
318 | /* Reject if down */ | ||
319 | if (!drvr->up || (drvr->busstate == BRCMF_BUS_DOWN)) | ||
320 | return -ENODEV; | ||
321 | |||
322 | /* Update multicast statistic */ | ||
323 | if (pktbuf->len >= ETH_ALEN) { | ||
324 | u8 *pktdata = (u8 *) (pktbuf->data); | ||
325 | struct ethhdr *eh = (struct ethhdr *)pktdata; | ||
326 | |||
327 | if (is_multicast_ether_addr(eh->h_dest)) | ||
328 | drvr->tx_multicast++; | ||
329 | if (ntohs(eh->h_proto) == ETH_P_PAE) | ||
330 | atomic_inc(&drvr_priv->pend_8021x_cnt); | ||
331 | } | ||
332 | |||
333 | /* If the protocol uses a data header, apply it */ | ||
334 | brcmf_proto_hdrpush(drvr, ifidx, pktbuf); | ||
335 | |||
336 | /* Use bus module to send data frame */ | ||
337 | return brcmf_sdbrcm_bus_txdata(drvr->bus, pktbuf); | ||
338 | } | ||
339 | |||
340 | static int brcmf_netdev_start_xmit(struct sk_buff *skb, struct net_device *ndev) | ||
341 | { | ||
342 | int ret; | ||
343 | struct brcmf_info *drvr_priv = *(struct brcmf_info **) | ||
344 | netdev_priv(ndev); | ||
345 | int ifidx; | ||
346 | |||
347 | brcmf_dbg(TRACE, "Enter\n"); | ||
348 | |||
349 | /* Reject if down */ | ||
350 | if (!drvr_priv->pub.up || (drvr_priv->pub.busstate == BRCMF_BUS_DOWN)) { | ||
351 | brcmf_dbg(ERROR, "xmit rejected pub.up=%d busstate=%d\n", | ||
352 | drvr_priv->pub.up, drvr_priv->pub.busstate); | ||
353 | netif_stop_queue(ndev); | ||
354 | return -ENODEV; | ||
355 | } | ||
356 | |||
357 | ifidx = brcmf_net2idx(drvr_priv, ndev); | ||
358 | if (ifidx == BRCMF_BAD_IF) { | ||
359 | brcmf_dbg(ERROR, "bad ifidx %d\n", ifidx); | ||
360 | netif_stop_queue(ndev); | ||
361 | return -ENODEV; | ||
362 | } | ||
363 | |||
364 | /* Make sure there's enough room for any header */ | ||
365 | if (skb_headroom(skb) < drvr_priv->pub.hdrlen) { | ||
366 | struct sk_buff *skb2; | ||
367 | |||
368 | brcmf_dbg(INFO, "%s: insufficient headroom\n", | ||
369 | brcmf_ifname(&drvr_priv->pub, ifidx)); | ||
370 | drvr_priv->pub.tx_realloc++; | ||
371 | skb2 = skb_realloc_headroom(skb, drvr_priv->pub.hdrlen); | ||
372 | dev_kfree_skb(skb); | ||
373 | skb = skb2; | ||
374 | if (skb == NULL) { | ||
375 | brcmf_dbg(ERROR, "%s: skb_realloc_headroom failed\n", | ||
376 | brcmf_ifname(&drvr_priv->pub, ifidx)); | ||
377 | ret = -ENOMEM; | ||
378 | goto done; | ||
379 | } | ||
380 | } | ||
381 | |||
382 | ret = brcmf_sendpkt(&drvr_priv->pub, ifidx, skb); | ||
383 | |||
384 | done: | ||
385 | if (ret) | ||
386 | drvr_priv->pub.dstats.tx_dropped++; | ||
387 | else | ||
388 | drvr_priv->pub.tx_packets++; | ||
389 | |||
390 | /* Return ok: we always eat the packet */ | ||
391 | return 0; | ||
392 | } | ||
393 | |||
394 | void brcmf_txflowcontrol(struct brcmf_pub *drvr, int ifidx, bool state) | ||
395 | { | ||
396 | struct net_device *ndev; | ||
397 | struct brcmf_info *drvr_priv = drvr->info; | ||
398 | |||
399 | brcmf_dbg(TRACE, "Enter\n"); | ||
400 | |||
401 | drvr->txoff = state; | ||
402 | ndev = drvr_priv->iflist[ifidx]->ndev; | ||
403 | if (state == ON) | ||
404 | netif_stop_queue(ndev); | ||
405 | else | ||
406 | netif_wake_queue(ndev); | ||
407 | } | ||
408 | |||
409 | static int brcmf_host_event(struct brcmf_info *drvr_priv, int *ifidx, | ||
410 | void *pktdata, struct brcmf_event_msg *event, | ||
411 | void **data) | ||
412 | { | ||
413 | int bcmerror = 0; | ||
414 | |||
415 | bcmerror = brcmf_c_host_event(drvr_priv, ifidx, pktdata, event, data); | ||
416 | if (bcmerror != 0) | ||
417 | return bcmerror; | ||
418 | |||
419 | if (drvr_priv->iflist[*ifidx]->ndev) | ||
420 | brcmf_cfg80211_event(drvr_priv->iflist[*ifidx]->ndev, | ||
421 | event, *data); | ||
422 | |||
423 | return bcmerror; | ||
424 | } | ||
425 | |||
426 | void brcmf_rx_frame(struct brcmf_pub *drvr, int ifidx, struct sk_buff *skb, | ||
427 | int numpkt) | ||
428 | { | ||
429 | struct brcmf_info *drvr_priv = drvr->info; | ||
430 | unsigned char *eth; | ||
431 | uint len; | ||
432 | void *data; | ||
433 | struct sk_buff *pnext, *save_pktbuf; | ||
434 | int i; | ||
435 | struct brcmf_if *ifp; | ||
436 | struct brcmf_event_msg event; | ||
437 | |||
438 | brcmf_dbg(TRACE, "Enter\n"); | ||
439 | |||
440 | save_pktbuf = skb; | ||
441 | |||
442 | for (i = 0; skb && i < numpkt; i++, skb = pnext) { | ||
443 | |||
444 | pnext = skb->next; | ||
445 | skb->next = NULL; | ||
446 | |||
447 | /* Get the protocol, maintain skb around eth_type_trans() | ||
448 | * The main reason for this hack is for the limitation of | ||
449 | * Linux 2.4 where 'eth_type_trans' uses the | ||
450 | * 'net->hard_header_len' | ||
451 | * to perform skb_pull inside vs ETH_HLEN. Since to avoid | ||
452 | * coping of the packet coming from the network stack to add | ||
453 | * BDC, Hardware header etc, during network interface | ||
454 | * registration | ||
455 | * we set the 'net->hard_header_len' to ETH_HLEN + extra space | ||
456 | * required | ||
457 | * for BDC, Hardware header etc. and not just the ETH_HLEN | ||
458 | */ | ||
459 | eth = skb->data; | ||
460 | len = skb->len; | ||
461 | |||
462 | ifp = drvr_priv->iflist[ifidx]; | ||
463 | if (ifp == NULL) | ||
464 | ifp = drvr_priv->iflist[0]; | ||
465 | |||
466 | skb->dev = ifp->ndev; | ||
467 | skb->protocol = eth_type_trans(skb, skb->dev); | ||
468 | |||
469 | if (skb->pkt_type == PACKET_MULTICAST) | ||
470 | drvr_priv->pub.rx_multicast++; | ||
471 | |||
472 | skb->data = eth; | ||
473 | skb->len = len; | ||
474 | |||
475 | /* Strip header, count, deliver upward */ | ||
476 | skb_pull(skb, ETH_HLEN); | ||
477 | |||
478 | /* Process special event packets and then discard them */ | ||
479 | if (ntohs(skb->protocol) == ETH_P_LINK_CTL) | ||
480 | brcmf_host_event(drvr_priv, &ifidx, | ||
481 | skb_mac_header(skb), | ||
482 | &event, &data); | ||
483 | |||
484 | if (drvr_priv->iflist[ifidx] && | ||
485 | !drvr_priv->iflist[ifidx]->state) | ||
486 | ifp = drvr_priv->iflist[ifidx]; | ||
487 | |||
488 | if (ifp->ndev) | ||
489 | ifp->ndev->last_rx = jiffies; | ||
490 | |||
491 | drvr->dstats.rx_bytes += skb->len; | ||
492 | drvr->rx_packets++; /* Local count */ | ||
493 | |||
494 | if (in_interrupt()) | ||
495 | netif_rx(skb); | ||
496 | else | ||
497 | /* If the receive is not processed inside an ISR, | ||
498 | * the softirqd must be woken explicitly to service | ||
499 | * the NET_RX_SOFTIRQ. In 2.6 kernels, this is handled | ||
500 | * by netif_rx_ni(), but in earlier kernels, we need | ||
501 | * to do it manually. | ||
502 | */ | ||
503 | netif_rx_ni(skb); | ||
504 | } | ||
505 | } | ||
506 | |||
507 | void brcmf_txcomplete(struct brcmf_pub *drvr, struct sk_buff *txp, bool success) | ||
508 | { | ||
509 | uint ifidx; | ||
510 | struct brcmf_info *drvr_priv = drvr->info; | ||
511 | struct ethhdr *eh; | ||
512 | u16 type; | ||
513 | |||
514 | brcmf_proto_hdrpull(drvr, &ifidx, txp); | ||
515 | |||
516 | eh = (struct ethhdr *)(txp->data); | ||
517 | type = ntohs(eh->h_proto); | ||
518 | |||
519 | if (type == ETH_P_PAE) | ||
520 | atomic_dec(&drvr_priv->pend_8021x_cnt); | ||
521 | |||
522 | } | ||
523 | |||
524 | static struct net_device_stats *brcmf_netdev_get_stats(struct net_device *ndev) | ||
525 | { | ||
526 | struct brcmf_info *drvr_priv = *(struct brcmf_info **) | ||
527 | netdev_priv(ndev); | ||
528 | struct brcmf_if *ifp; | ||
529 | int ifidx; | ||
530 | |||
531 | brcmf_dbg(TRACE, "Enter\n"); | ||
532 | |||
533 | ifidx = brcmf_net2idx(drvr_priv, ndev); | ||
534 | if (ifidx == BRCMF_BAD_IF) | ||
535 | return NULL; | ||
536 | |||
537 | ifp = drvr_priv->iflist[ifidx]; | ||
538 | |||
539 | if (drvr_priv->pub.up) | ||
540 | /* Use the protocol to get dongle stats */ | ||
541 | brcmf_proto_dstats(&drvr_priv->pub); | ||
542 | |||
543 | /* Copy dongle stats to net device stats */ | ||
544 | ifp->stats.rx_packets = drvr_priv->pub.dstats.rx_packets; | ||
545 | ifp->stats.tx_packets = drvr_priv->pub.dstats.tx_packets; | ||
546 | ifp->stats.rx_bytes = drvr_priv->pub.dstats.rx_bytes; | ||
547 | ifp->stats.tx_bytes = drvr_priv->pub.dstats.tx_bytes; | ||
548 | ifp->stats.rx_errors = drvr_priv->pub.dstats.rx_errors; | ||
549 | ifp->stats.tx_errors = drvr_priv->pub.dstats.tx_errors; | ||
550 | ifp->stats.rx_dropped = drvr_priv->pub.dstats.rx_dropped; | ||
551 | ifp->stats.tx_dropped = drvr_priv->pub.dstats.tx_dropped; | ||
552 | ifp->stats.multicast = drvr_priv->pub.dstats.multicast; | ||
553 | |||
554 | return &ifp->stats; | ||
555 | } | ||
556 | |||
557 | /* Retrieve current toe component enables, which are kept | ||
558 | as a bitmap in toe_ol iovar */ | ||
559 | static int brcmf_toe_get(struct brcmf_info *drvr_priv, int ifidx, u32 *toe_ol) | ||
560 | { | ||
561 | struct brcmf_dcmd dcmd; | ||
562 | char buf[32]; | ||
563 | int ret; | ||
564 | |||
565 | memset(&dcmd, 0, sizeof(dcmd)); | ||
566 | |||
567 | dcmd.cmd = BRCMF_C_GET_VAR; | ||
568 | dcmd.buf = buf; | ||
569 | dcmd.len = (uint) sizeof(buf); | ||
570 | dcmd.set = false; | ||
571 | |||
572 | strcpy(buf, "toe_ol"); | ||
573 | ret = brcmf_proto_dcmd(&drvr_priv->pub, ifidx, &dcmd, dcmd.len); | ||
574 | if (ret < 0) { | ||
575 | /* Check for older dongle image that doesn't support toe_ol */ | ||
576 | if (ret == -EIO) { | ||
577 | brcmf_dbg(ERROR, "%s: toe not supported by device\n", | ||
578 | brcmf_ifname(&drvr_priv->pub, ifidx)); | ||
579 | return -EOPNOTSUPP; | ||
580 | } | ||
581 | |||
582 | brcmf_dbg(INFO, "%s: could not get toe_ol: ret=%d\n", | ||
583 | brcmf_ifname(&drvr_priv->pub, ifidx), ret); | ||
584 | return ret; | ||
585 | } | ||
586 | |||
587 | memcpy(toe_ol, buf, sizeof(u32)); | ||
588 | return 0; | ||
589 | } | ||
590 | |||
591 | /* Set current toe component enables in toe_ol iovar, | ||
592 | and set toe global enable iovar */ | ||
593 | static int brcmf_toe_set(struct brcmf_info *drvr_priv, int ifidx, u32 toe_ol) | ||
594 | { | ||
595 | struct brcmf_dcmd dcmd; | ||
596 | char buf[32]; | ||
597 | int toe, ret; | ||
598 | |||
599 | memset(&dcmd, 0, sizeof(dcmd)); | ||
600 | |||
601 | dcmd.cmd = BRCMF_C_SET_VAR; | ||
602 | dcmd.buf = buf; | ||
603 | dcmd.len = (uint) sizeof(buf); | ||
604 | dcmd.set = true; | ||
605 | |||
606 | /* Set toe_ol as requested */ | ||
607 | |||
608 | strcpy(buf, "toe_ol"); | ||
609 | memcpy(&buf[sizeof("toe_ol")], &toe_ol, sizeof(u32)); | ||
610 | |||
611 | ret = brcmf_proto_dcmd(&drvr_priv->pub, ifidx, &dcmd, dcmd.len); | ||
612 | if (ret < 0) { | ||
613 | brcmf_dbg(ERROR, "%s: could not set toe_ol: ret=%d\n", | ||
614 | brcmf_ifname(&drvr_priv->pub, ifidx), ret); | ||
615 | return ret; | ||
616 | } | ||
617 | |||
618 | /* Enable toe globally only if any components are enabled. */ | ||
619 | |||
620 | toe = (toe_ol != 0); | ||
621 | |||
622 | strcpy(buf, "toe"); | ||
623 | memcpy(&buf[sizeof("toe")], &toe, sizeof(u32)); | ||
624 | |||
625 | ret = brcmf_proto_dcmd(&drvr_priv->pub, ifidx, &dcmd, dcmd.len); | ||
626 | if (ret < 0) { | ||
627 | brcmf_dbg(ERROR, "%s: could not set toe: ret=%d\n", | ||
628 | brcmf_ifname(&drvr_priv->pub, ifidx), ret); | ||
629 | return ret; | ||
630 | } | ||
631 | |||
632 | return 0; | ||
633 | } | ||
634 | |||
635 | static void brcmf_ethtool_get_drvinfo(struct net_device *ndev, | ||
636 | struct ethtool_drvinfo *info) | ||
637 | { | ||
638 | struct brcmf_info *drvr_priv = *(struct brcmf_info **) | ||
639 | netdev_priv(ndev); | ||
640 | |||
641 | sprintf(info->driver, KBUILD_MODNAME); | ||
642 | sprintf(info->version, "%lu", drvr_priv->pub.drv_version); | ||
643 | sprintf(info->fw_version, "%s", BCM4329_FW_NAME); | ||
644 | sprintf(info->bus_info, "%s", | ||
645 | dev_name(brcmf_bus_get_device(drvr_priv->pub.bus))); | ||
646 | } | ||
647 | |||
648 | static struct ethtool_ops brcmf_ethtool_ops = { | ||
649 | .get_drvinfo = brcmf_ethtool_get_drvinfo | ||
650 | }; | ||
651 | |||
652 | static int brcmf_ethtool(struct brcmf_info *drvr_priv, void __user *uaddr) | ||
653 | { | ||
654 | struct ethtool_drvinfo info; | ||
655 | char drvname[sizeof(info.driver)]; | ||
656 | u32 cmd; | ||
657 | struct ethtool_value edata; | ||
658 | u32 toe_cmpnt, csum_dir; | ||
659 | int ret; | ||
660 | |||
661 | brcmf_dbg(TRACE, "Enter\n"); | ||
662 | |||
663 | /* all ethtool calls start with a cmd word */ | ||
664 | if (copy_from_user(&cmd, uaddr, sizeof(u32))) | ||
665 | return -EFAULT; | ||
666 | |||
667 | switch (cmd) { | ||
668 | case ETHTOOL_GDRVINFO: | ||
669 | /* Copy out any request driver name */ | ||
670 | if (copy_from_user(&info, uaddr, sizeof(info))) | ||
671 | return -EFAULT; | ||
672 | strncpy(drvname, info.driver, sizeof(info.driver)); | ||
673 | drvname[sizeof(info.driver) - 1] = '\0'; | ||
674 | |||
675 | /* clear struct for return */ | ||
676 | memset(&info, 0, sizeof(info)); | ||
677 | info.cmd = cmd; | ||
678 | |||
679 | /* if requested, identify ourselves */ | ||
680 | if (strcmp(drvname, "?dhd") == 0) { | ||
681 | sprintf(info.driver, "dhd"); | ||
682 | strcpy(info.version, BRCMF_VERSION_STR); | ||
683 | } | ||
684 | |||
685 | /* otherwise, require dongle to be up */ | ||
686 | else if (!drvr_priv->pub.up) { | ||
687 | brcmf_dbg(ERROR, "dongle is not up\n"); | ||
688 | return -ENODEV; | ||
689 | } | ||
690 | |||
691 | /* finally, report dongle driver type */ | ||
692 | else if (drvr_priv->pub.iswl) | ||
693 | sprintf(info.driver, "wl"); | ||
694 | else | ||
695 | sprintf(info.driver, "xx"); | ||
696 | |||
697 | sprintf(info.version, "%lu", drvr_priv->pub.drv_version); | ||
698 | if (copy_to_user(uaddr, &info, sizeof(info))) | ||
699 | return -EFAULT; | ||
700 | brcmf_dbg(CTL, "given %*s, returning %s\n", | ||
701 | (int)sizeof(drvname), drvname, info.driver); | ||
702 | break; | ||
703 | |||
704 | /* Get toe offload components from dongle */ | ||
705 | case ETHTOOL_GRXCSUM: | ||
706 | case ETHTOOL_GTXCSUM: | ||
707 | ret = brcmf_toe_get(drvr_priv, 0, &toe_cmpnt); | ||
708 | if (ret < 0) | ||
709 | return ret; | ||
710 | |||
711 | csum_dir = | ||
712 | (cmd == ETHTOOL_GTXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL; | ||
713 | |||
714 | edata.cmd = cmd; | ||
715 | edata.data = (toe_cmpnt & csum_dir) ? 1 : 0; | ||
716 | |||
717 | if (copy_to_user(uaddr, &edata, sizeof(edata))) | ||
718 | return -EFAULT; | ||
719 | break; | ||
720 | |||
721 | /* Set toe offload components in dongle */ | ||
722 | case ETHTOOL_SRXCSUM: | ||
723 | case ETHTOOL_STXCSUM: | ||
724 | if (copy_from_user(&edata, uaddr, sizeof(edata))) | ||
725 | return -EFAULT; | ||
726 | |||
727 | /* Read the current settings, update and write back */ | ||
728 | ret = brcmf_toe_get(drvr_priv, 0, &toe_cmpnt); | ||
729 | if (ret < 0) | ||
730 | return ret; | ||
731 | |||
732 | csum_dir = | ||
733 | (cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL; | ||
734 | |||
735 | if (edata.data != 0) | ||
736 | toe_cmpnt |= csum_dir; | ||
737 | else | ||
738 | toe_cmpnt &= ~csum_dir; | ||
739 | |||
740 | ret = brcmf_toe_set(drvr_priv, 0, toe_cmpnt); | ||
741 | if (ret < 0) | ||
742 | return ret; | ||
743 | |||
744 | /* If setting TX checksum mode, tell Linux the new mode */ | ||
745 | if (cmd == ETHTOOL_STXCSUM) { | ||
746 | if (edata.data) | ||
747 | drvr_priv->iflist[0]->ndev->features |= | ||
748 | NETIF_F_IP_CSUM; | ||
749 | else | ||
750 | drvr_priv->iflist[0]->ndev->features &= | ||
751 | ~NETIF_F_IP_CSUM; | ||
752 | } | ||
753 | |||
754 | break; | ||
755 | |||
756 | default: | ||
757 | return -EOPNOTSUPP; | ||
758 | } | ||
759 | |||
760 | return 0; | ||
761 | } | ||
762 | |||
763 | static int brcmf_netdev_ioctl_entry(struct net_device *ndev, struct ifreq *ifr, | ||
764 | int cmd) | ||
765 | { | ||
766 | struct brcmf_info *drvr_priv = *(struct brcmf_info **) | ||
767 | netdev_priv(ndev); | ||
768 | int ifidx; | ||
769 | |||
770 | ifidx = brcmf_net2idx(drvr_priv, ndev); | ||
771 | brcmf_dbg(TRACE, "ifidx %d, cmd 0x%04x\n", ifidx, cmd); | ||
772 | |||
773 | if (ifidx == BRCMF_BAD_IF) | ||
774 | return -1; | ||
775 | |||
776 | if (cmd == SIOCETHTOOL) | ||
777 | return brcmf_ethtool(drvr_priv, ifr->ifr_data); | ||
778 | |||
779 | return -EOPNOTSUPP; | ||
780 | } | ||
781 | |||
782 | /* called only from within this driver. Sends a command to the dongle. */ | ||
783 | s32 brcmf_exec_dcmd(struct net_device *ndev, u32 cmd, void *arg, u32 len) | ||
784 | { | ||
785 | struct brcmf_dcmd dcmd; | ||
786 | s32 err = 0; | ||
787 | int buflen = 0; | ||
788 | bool is_set_key_cmd; | ||
789 | struct brcmf_info *drvr_priv = *(struct brcmf_info **) | ||
790 | netdev_priv(ndev); | ||
791 | int ifidx; | ||
792 | |||
793 | memset(&dcmd, 0, sizeof(dcmd)); | ||
794 | dcmd.cmd = cmd; | ||
795 | dcmd.buf = arg; | ||
796 | dcmd.len = len; | ||
797 | |||
798 | ifidx = brcmf_net2idx(drvr_priv, ndev); | ||
799 | |||
800 | if (dcmd.buf != NULL) | ||
801 | buflen = min_t(uint, dcmd.len, BRCMF_DCMD_MAXLEN); | ||
802 | |||
803 | /* send to dongle (must be up, and wl) */ | ||
804 | if ((drvr_priv->pub.busstate != BRCMF_BUS_DATA)) { | ||
805 | brcmf_dbg(ERROR, "DONGLE_DOWN\n"); | ||
806 | err = -EIO; | ||
807 | goto done; | ||
808 | } | ||
809 | |||
810 | if (!drvr_priv->pub.iswl) { | ||
811 | err = -EIO; | ||
812 | goto done; | ||
813 | } | ||
814 | |||
815 | /* | ||
816 | * Intercept BRCMF_C_SET_KEY CMD - serialize M4 send and | ||
817 | * set key CMD to prevent M4 encryption. | ||
818 | */ | ||
819 | is_set_key_cmd = ((dcmd.cmd == BRCMF_C_SET_KEY) || | ||
820 | ((dcmd.cmd == BRCMF_C_SET_VAR) && | ||
821 | !(strncmp("wsec_key", dcmd.buf, 9))) || | ||
822 | ((dcmd.cmd == BRCMF_C_SET_VAR) && | ||
823 | !(strncmp("bsscfg:wsec_key", dcmd.buf, 15)))); | ||
824 | if (is_set_key_cmd) | ||
825 | brcmf_netdev_wait_pend8021x(ndev); | ||
826 | |||
827 | err = brcmf_proto_dcmd(&drvr_priv->pub, ifidx, &dcmd, buflen); | ||
828 | |||
829 | done: | ||
830 | if (err > 0) | ||
831 | err = 0; | ||
832 | |||
833 | return err; | ||
834 | } | ||
835 | |||
836 | static int brcmf_netdev_stop(struct net_device *ndev) | ||
837 | { | ||
838 | struct brcmf_pub *drvr = *(struct brcmf_pub **) netdev_priv(ndev); | ||
839 | |||
840 | brcmf_dbg(TRACE, "Enter\n"); | ||
841 | brcmf_cfg80211_down(drvr->config); | ||
842 | if (drvr->up == 0) | ||
843 | return 0; | ||
844 | |||
845 | /* Set state and stop OS transmissions */ | ||
846 | drvr->up = 0; | ||
847 | netif_stop_queue(ndev); | ||
848 | |||
849 | return 0; | ||
850 | } | ||
851 | |||
852 | static int brcmf_netdev_open(struct net_device *ndev) | ||
853 | { | ||
854 | struct brcmf_info *drvr_priv = *(struct brcmf_info **) | ||
855 | netdev_priv(ndev); | ||
856 | u32 toe_ol; | ||
857 | int ifidx = brcmf_net2idx(drvr_priv, ndev); | ||
858 | s32 ret = 0; | ||
859 | |||
860 | brcmf_dbg(TRACE, "ifidx %d\n", ifidx); | ||
861 | |||
862 | if (ifidx == 0) { /* do it only for primary eth0 */ | ||
863 | |||
864 | /* try to bring up bus */ | ||
865 | ret = brcmf_bus_start(&drvr_priv->pub); | ||
866 | if (ret != 0) { | ||
867 | brcmf_dbg(ERROR, "failed with code %d\n", ret); | ||
868 | return -1; | ||
869 | } | ||
870 | atomic_set(&drvr_priv->pend_8021x_cnt, 0); | ||
871 | |||
872 | memcpy(ndev->dev_addr, drvr_priv->pub.mac, ETH_ALEN); | ||
873 | |||
874 | /* Get current TOE mode from dongle */ | ||
875 | if (brcmf_toe_get(drvr_priv, ifidx, &toe_ol) >= 0 | ||
876 | && (toe_ol & TOE_TX_CSUM_OL) != 0) | ||
877 | drvr_priv->iflist[ifidx]->ndev->features |= | ||
878 | NETIF_F_IP_CSUM; | ||
879 | else | ||
880 | drvr_priv->iflist[ifidx]->ndev->features &= | ||
881 | ~NETIF_F_IP_CSUM; | ||
882 | } | ||
883 | /* Allow transmit calls */ | ||
884 | netif_start_queue(ndev); | ||
885 | drvr_priv->pub.up = 1; | ||
886 | if (brcmf_cfg80211_up(drvr_priv->pub.config)) { | ||
887 | brcmf_dbg(ERROR, "failed to bring up cfg80211\n"); | ||
888 | return -1; | ||
889 | } | ||
890 | |||
891 | return ret; | ||
892 | } | ||
893 | |||
894 | int | ||
895 | brcmf_add_if(struct brcmf_info *drvr_priv, int ifidx, struct net_device *ndev, | ||
896 | char *name, u8 *mac_addr, u32 flags, u8 bssidx) | ||
897 | { | ||
898 | struct brcmf_if *ifp; | ||
899 | int ret = 0, err = 0; | ||
900 | |||
901 | brcmf_dbg(TRACE, "idx %d, handle->%p\n", ifidx, ndev); | ||
902 | |||
903 | ifp = drvr_priv->iflist[ifidx]; | ||
904 | if (!ifp) { | ||
905 | ifp = kmalloc(sizeof(struct brcmf_if), GFP_ATOMIC); | ||
906 | if (!ifp) | ||
907 | return -ENOMEM; | ||
908 | } | ||
909 | |||
910 | memset(ifp, 0, sizeof(struct brcmf_if)); | ||
911 | ifp->info = drvr_priv; | ||
912 | drvr_priv->iflist[ifidx] = ifp; | ||
913 | if (mac_addr != NULL) | ||
914 | memcpy(&ifp->mac_addr, mac_addr, ETH_ALEN); | ||
915 | |||
916 | if (ndev == NULL) { | ||
917 | ifp->state = BRCMF_E_IF_ADD; | ||
918 | ifp->idx = ifidx; | ||
919 | /* | ||
920 | * Delete the existing interface before overwriting it | ||
921 | * in case we missed the BRCMF_E_IF_DEL event. | ||
922 | */ | ||
923 | if (ifp->ndev != NULL) { | ||
924 | brcmf_dbg(ERROR, "ERROR: netdev:%s already exists, try free & unregister\n", | ||
925 | ifp->ndev->name); | ||
926 | netif_stop_queue(ifp->ndev); | ||
927 | unregister_netdev(ifp->ndev); | ||
928 | free_netdev(ifp->ndev); | ||
929 | } | ||
930 | |||
931 | /* Allocate netdev, including space for private structure */ | ||
932 | ifp->ndev = alloc_netdev(sizeof(drvr_priv), "wlan%d", | ||
933 | ether_setup); | ||
934 | if (!ifp->ndev) { | ||
935 | brcmf_dbg(ERROR, "OOM - alloc_netdev\n"); | ||
936 | ret = -ENOMEM; | ||
937 | } | ||
938 | |||
939 | if (ret == 0) { | ||
940 | memcpy(netdev_priv(ifp->ndev), &drvr_priv, | ||
941 | sizeof(drvr_priv)); | ||
942 | err = brcmf_net_attach(&drvr_priv->pub, ifp->idx); | ||
943 | if (err != 0) { | ||
944 | brcmf_dbg(ERROR, "brcmf_net_attach failed, err %d\n", | ||
945 | err); | ||
946 | ret = -EOPNOTSUPP; | ||
947 | } else { | ||
948 | brcmf_dbg(TRACE, " ==== pid:%x, net_device for if:%s created ===\n", | ||
949 | current->pid, ifp->ndev->name); | ||
950 | ifp->state = 0; | ||
951 | } | ||
952 | } | ||
953 | |||
954 | if (ret < 0) { | ||
955 | if (ifp->ndev) | ||
956 | free_netdev(ifp->ndev); | ||
957 | |||
958 | drvr_priv->iflist[ifp->idx] = NULL; | ||
959 | kfree(ifp); | ||
960 | } | ||
961 | } else | ||
962 | ifp->ndev = ndev; | ||
963 | |||
964 | return 0; | ||
965 | } | ||
966 | |||
967 | void brcmf_del_if(struct brcmf_info *drvr_priv, int ifidx) | ||
968 | { | ||
969 | struct brcmf_if *ifp; | ||
970 | |||
971 | brcmf_dbg(TRACE, "idx %d\n", ifidx); | ||
972 | |||
973 | ifp = drvr_priv->iflist[ifidx]; | ||
974 | if (!ifp) { | ||
975 | brcmf_dbg(ERROR, "Null interface\n"); | ||
976 | return; | ||
977 | } | ||
978 | |||
979 | ifp->state = BRCMF_E_IF_DEL; | ||
980 | ifp->idx = ifidx; | ||
981 | if (ifp->ndev != NULL) { | ||
982 | netif_stop_queue(ifp->ndev); | ||
983 | unregister_netdev(ifp->ndev); | ||
984 | free_netdev(ifp->ndev); | ||
985 | drvr_priv->iflist[ifidx] = NULL; | ||
986 | kfree(ifp); | ||
987 | } | ||
988 | } | ||
989 | |||
990 | struct brcmf_pub *brcmf_attach(struct brcmf_bus *bus, uint bus_hdrlen) | ||
991 | { | ||
992 | struct brcmf_info *drvr_priv = NULL; | ||
993 | struct net_device *ndev; | ||
994 | |||
995 | brcmf_dbg(TRACE, "Enter\n"); | ||
996 | |||
997 | /* Allocate netdev, including space for private structure */ | ||
998 | ndev = alloc_netdev(sizeof(drvr_priv), "wlan%d", ether_setup); | ||
999 | if (!ndev) { | ||
1000 | brcmf_dbg(ERROR, "OOM - alloc_netdev\n"); | ||
1001 | goto fail; | ||
1002 | } | ||
1003 | |||
1004 | /* Allocate primary brcmf_info */ | ||
1005 | drvr_priv = kzalloc(sizeof(struct brcmf_info), GFP_ATOMIC); | ||
1006 | if (!drvr_priv) | ||
1007 | goto fail; | ||
1008 | |||
1009 | /* | ||
1010 | * Save the brcmf_info into the priv | ||
1011 | */ | ||
1012 | memcpy(netdev_priv(ndev), &drvr_priv, sizeof(drvr_priv)); | ||
1013 | |||
1014 | if (brcmf_add_if(drvr_priv, 0, ndev, ndev->name, NULL, 0, 0) == | ||
1015 | BRCMF_BAD_IF) | ||
1016 | goto fail; | ||
1017 | |||
1018 | ndev->netdev_ops = NULL; | ||
1019 | mutex_init(&drvr_priv->proto_block); | ||
1020 | |||
1021 | /* Link to info module */ | ||
1022 | drvr_priv->pub.info = drvr_priv; | ||
1023 | |||
1024 | /* Link to bus module */ | ||
1025 | drvr_priv->pub.bus = bus; | ||
1026 | drvr_priv->pub.hdrlen = bus_hdrlen; | ||
1027 | |||
1028 | /* Attach and link in the protocol */ | ||
1029 | if (brcmf_proto_attach(&drvr_priv->pub) != 0) { | ||
1030 | brcmf_dbg(ERROR, "brcmf_prot_attach failed\n"); | ||
1031 | goto fail; | ||
1032 | } | ||
1033 | |||
1034 | /* Attach and link in the cfg80211 */ | ||
1035 | drvr_priv->pub.config = | ||
1036 | brcmf_cfg80211_attach(ndev, | ||
1037 | brcmf_bus_get_device(bus), | ||
1038 | &drvr_priv->pub); | ||
1039 | if (drvr_priv->pub.config == NULL) { | ||
1040 | brcmf_dbg(ERROR, "wl_cfg80211_attach failed\n"); | ||
1041 | goto fail; | ||
1042 | } | ||
1043 | |||
1044 | INIT_WORK(&drvr_priv->setmacaddr_work, _brcmf_set_mac_address); | ||
1045 | INIT_WORK(&drvr_priv->multicast_work, _brcmf_set_multicast_list); | ||
1046 | |||
1047 | /* | ||
1048 | * Save the brcmf_info into the priv | ||
1049 | */ | ||
1050 | memcpy(netdev_priv(ndev), &drvr_priv, sizeof(drvr_priv)); | ||
1051 | |||
1052 | return &drvr_priv->pub; | ||
1053 | |||
1054 | fail: | ||
1055 | if (ndev) | ||
1056 | free_netdev(ndev); | ||
1057 | if (drvr_priv) | ||
1058 | brcmf_detach(&drvr_priv->pub); | ||
1059 | |||
1060 | return NULL; | ||
1061 | } | ||
1062 | |||
1063 | int brcmf_bus_start(struct brcmf_pub *drvr) | ||
1064 | { | ||
1065 | int ret = -1; | ||
1066 | struct brcmf_info *drvr_priv = drvr->info; | ||
1067 | /* Room for "event_msgs" + '\0' + bitvec */ | ||
1068 | char iovbuf[BRCMF_EVENTING_MASK_LEN + 12]; | ||
1069 | |||
1070 | brcmf_dbg(TRACE, "\n"); | ||
1071 | |||
1072 | /* Bring up the bus */ | ||
1073 | ret = brcmf_sdbrcm_bus_init(&drvr_priv->pub); | ||
1074 | if (ret != 0) { | ||
1075 | brcmf_dbg(ERROR, "brcmf_sdbrcm_bus_init failed %d\n", ret); | ||
1076 | return ret; | ||
1077 | } | ||
1078 | |||
1079 | /* If bus is not ready, can't come up */ | ||
1080 | if (drvr_priv->pub.busstate != BRCMF_BUS_DATA) { | ||
1081 | brcmf_dbg(ERROR, "failed bus is not ready\n"); | ||
1082 | return -ENODEV; | ||
1083 | } | ||
1084 | |||
1085 | brcmu_mkiovar("event_msgs", drvr->eventmask, BRCMF_EVENTING_MASK_LEN, | ||
1086 | iovbuf, sizeof(iovbuf)); | ||
1087 | brcmf_proto_cdc_query_dcmd(drvr, 0, BRCMF_C_GET_VAR, iovbuf, | ||
1088 | sizeof(iovbuf)); | ||
1089 | memcpy(drvr->eventmask, iovbuf, BRCMF_EVENTING_MASK_LEN); | ||
1090 | |||
1091 | setbit(drvr->eventmask, BRCMF_E_SET_SSID); | ||
1092 | setbit(drvr->eventmask, BRCMF_E_PRUNE); | ||
1093 | setbit(drvr->eventmask, BRCMF_E_AUTH); | ||
1094 | setbit(drvr->eventmask, BRCMF_E_REASSOC); | ||
1095 | setbit(drvr->eventmask, BRCMF_E_REASSOC_IND); | ||
1096 | setbit(drvr->eventmask, BRCMF_E_DEAUTH_IND); | ||
1097 | setbit(drvr->eventmask, BRCMF_E_DISASSOC_IND); | ||
1098 | setbit(drvr->eventmask, BRCMF_E_DISASSOC); | ||
1099 | setbit(drvr->eventmask, BRCMF_E_JOIN); | ||
1100 | setbit(drvr->eventmask, BRCMF_E_ASSOC_IND); | ||
1101 | setbit(drvr->eventmask, BRCMF_E_PSK_SUP); | ||
1102 | setbit(drvr->eventmask, BRCMF_E_LINK); | ||
1103 | setbit(drvr->eventmask, BRCMF_E_NDIS_LINK); | ||
1104 | setbit(drvr->eventmask, BRCMF_E_MIC_ERROR); | ||
1105 | setbit(drvr->eventmask, BRCMF_E_PMKID_CACHE); | ||
1106 | setbit(drvr->eventmask, BRCMF_E_TXFAIL); | ||
1107 | setbit(drvr->eventmask, BRCMF_E_JOIN_START); | ||
1108 | setbit(drvr->eventmask, BRCMF_E_SCAN_COMPLETE); | ||
1109 | |||
1110 | /* enable dongle roaming event */ | ||
1111 | |||
1112 | drvr->pktfilter_count = 1; | ||
1113 | /* Setup filter to allow only unicast */ | ||
1114 | drvr->pktfilter[0] = "100 0 0 0 0x01 0x00"; | ||
1115 | |||
1116 | /* Bus is ready, do any protocol initialization */ | ||
1117 | ret = brcmf_proto_init(&drvr_priv->pub); | ||
1118 | if (ret < 0) | ||
1119 | return ret; | ||
1120 | |||
1121 | return 0; | ||
1122 | } | ||
1123 | |||
1124 | static struct net_device_ops brcmf_netdev_ops_pri = { | ||
1125 | .ndo_open = brcmf_netdev_open, | ||
1126 | .ndo_stop = brcmf_netdev_stop, | ||
1127 | .ndo_get_stats = brcmf_netdev_get_stats, | ||
1128 | .ndo_do_ioctl = brcmf_netdev_ioctl_entry, | ||
1129 | .ndo_start_xmit = brcmf_netdev_start_xmit, | ||
1130 | .ndo_set_mac_address = brcmf_netdev_set_mac_address, | ||
1131 | .ndo_set_multicast_list = brcmf_netdev_set_multicast_list | ||
1132 | }; | ||
1133 | |||
1134 | int brcmf_net_attach(struct brcmf_pub *drvr, int ifidx) | ||
1135 | { | ||
1136 | struct brcmf_info *drvr_priv = drvr->info; | ||
1137 | struct net_device *ndev; | ||
1138 | u8 temp_addr[ETH_ALEN] = { | ||
1139 | 0x00, 0x90, 0x4c, 0x11, 0x22, 0x33}; | ||
1140 | |||
1141 | brcmf_dbg(TRACE, "ifidx %d\n", ifidx); | ||
1142 | |||
1143 | ndev = drvr_priv->iflist[ifidx]->ndev; | ||
1144 | ndev->netdev_ops = &brcmf_netdev_ops_pri; | ||
1145 | |||
1146 | /* | ||
1147 | * We have to use the primary MAC for virtual interfaces | ||
1148 | */ | ||
1149 | if (ifidx != 0) { | ||
1150 | /* for virtual interfaces use the primary MAC */ | ||
1151 | memcpy(temp_addr, drvr_priv->pub.mac, ETH_ALEN); | ||
1152 | |||
1153 | } | ||
1154 | |||
1155 | if (ifidx == 1) { | ||
1156 | brcmf_dbg(TRACE, "ACCESS POINT MAC:\n"); | ||
1157 | /* ACCESSPOINT INTERFACE CASE */ | ||
1158 | temp_addr[0] |= 0X02; /* set bit 2 , | ||
1159 | - Locally Administered address */ | ||
1160 | |||
1161 | } | ||
1162 | ndev->hard_header_len = ETH_HLEN + drvr_priv->pub.hdrlen; | ||
1163 | ndev->ethtool_ops = &brcmf_ethtool_ops; | ||
1164 | |||
1165 | drvr_priv->pub.rxsz = ndev->mtu + ndev->hard_header_len + | ||
1166 | drvr_priv->pub.hdrlen; | ||
1167 | |||
1168 | memcpy(ndev->dev_addr, temp_addr, ETH_ALEN); | ||
1169 | |||
1170 | if (register_netdev(ndev) != 0) { | ||
1171 | brcmf_dbg(ERROR, "couldn't register the net device\n"); | ||
1172 | goto fail; | ||
1173 | } | ||
1174 | |||
1175 | brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name); | ||
1176 | |||
1177 | return 0; | ||
1178 | |||
1179 | fail: | ||
1180 | ndev->netdev_ops = NULL; | ||
1181 | return -EBADE; | ||
1182 | } | ||
1183 | |||
1184 | static void brcmf_bus_detach(struct brcmf_pub *drvr) | ||
1185 | { | ||
1186 | struct brcmf_info *drvr_priv; | ||
1187 | |||
1188 | brcmf_dbg(TRACE, "Enter\n"); | ||
1189 | |||
1190 | if (drvr) { | ||
1191 | drvr_priv = drvr->info; | ||
1192 | if (drvr_priv) { | ||
1193 | /* Stop the protocol module */ | ||
1194 | brcmf_proto_stop(&drvr_priv->pub); | ||
1195 | |||
1196 | /* Stop the bus module */ | ||
1197 | brcmf_sdbrcm_bus_stop(drvr_priv->pub.bus); | ||
1198 | } | ||
1199 | } | ||
1200 | } | ||
1201 | |||
1202 | void brcmf_detach(struct brcmf_pub *drvr) | ||
1203 | { | ||
1204 | struct brcmf_info *drvr_priv; | ||
1205 | |||
1206 | brcmf_dbg(TRACE, "Enter\n"); | ||
1207 | |||
1208 | if (drvr) { | ||
1209 | drvr_priv = drvr->info; | ||
1210 | if (drvr_priv) { | ||
1211 | struct brcmf_if *ifp; | ||
1212 | int i; | ||
1213 | |||
1214 | for (i = 1; i < BRCMF_MAX_IFS; i++) | ||
1215 | if (drvr_priv->iflist[i]) | ||
1216 | brcmf_del_if(drvr_priv, i); | ||
1217 | |||
1218 | ifp = drvr_priv->iflist[0]; | ||
1219 | if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) { | ||
1220 | rtnl_lock(); | ||
1221 | brcmf_netdev_stop(ifp->ndev); | ||
1222 | rtnl_unlock(); | ||
1223 | unregister_netdev(ifp->ndev); | ||
1224 | } | ||
1225 | |||
1226 | cancel_work_sync(&drvr_priv->setmacaddr_work); | ||
1227 | cancel_work_sync(&drvr_priv->multicast_work); | ||
1228 | |||
1229 | brcmf_bus_detach(drvr); | ||
1230 | |||
1231 | if (drvr->prot) | ||
1232 | brcmf_proto_detach(drvr); | ||
1233 | |||
1234 | brcmf_cfg80211_detach(drvr->config); | ||
1235 | |||
1236 | free_netdev(ifp->ndev); | ||
1237 | kfree(ifp); | ||
1238 | kfree(drvr_priv); | ||
1239 | } | ||
1240 | } | ||
1241 | } | ||
1242 | |||
1243 | static void __exit brcmf_module_cleanup(void) | ||
1244 | { | ||
1245 | brcmf_dbg(TRACE, "Enter\n"); | ||
1246 | |||
1247 | brcmf_bus_unregister(); | ||
1248 | } | ||
1249 | |||
1250 | static int __init brcmf_module_init(void) | ||
1251 | { | ||
1252 | int error; | ||
1253 | |||
1254 | brcmf_dbg(TRACE, "Enter\n"); | ||
1255 | |||
1256 | error = brcmf_bus_register(); | ||
1257 | |||
1258 | if (error) { | ||
1259 | brcmf_dbg(ERROR, "brcmf_bus_register failed\n"); | ||
1260 | goto failed; | ||
1261 | } | ||
1262 | return 0; | ||
1263 | |||
1264 | failed: | ||
1265 | return -EINVAL; | ||
1266 | } | ||
1267 | |||
1268 | module_init(brcmf_module_init); | ||
1269 | module_exit(brcmf_module_cleanup); | ||
1270 | |||
1271 | int brcmf_os_proto_block(struct brcmf_pub *drvr) | ||
1272 | { | ||
1273 | struct brcmf_info *drvr_priv = drvr->info; | ||
1274 | |||
1275 | if (drvr_priv) { | ||
1276 | mutex_lock(&drvr_priv->proto_block); | ||
1277 | return 1; | ||
1278 | } | ||
1279 | return 0; | ||
1280 | } | ||
1281 | |||
1282 | int brcmf_os_proto_unblock(struct brcmf_pub *drvr) | ||
1283 | { | ||
1284 | struct brcmf_info *drvr_priv = drvr->info; | ||
1285 | |||
1286 | if (drvr_priv) { | ||
1287 | mutex_unlock(&drvr_priv->proto_block); | ||
1288 | return 1; | ||
1289 | } | ||
1290 | |||
1291 | return 0; | ||
1292 | } | ||
1293 | |||
1294 | static int brcmf_get_pend_8021x_cnt(struct brcmf_info *drvr_priv) | ||
1295 | { | ||
1296 | return atomic_read(&drvr_priv->pend_8021x_cnt); | ||
1297 | } | ||
1298 | |||
1299 | #define MAX_WAIT_FOR_8021X_TX 10 | ||
1300 | |||
1301 | int brcmf_netdev_wait_pend8021x(struct net_device *ndev) | ||
1302 | { | ||
1303 | struct brcmf_info *drvr_priv = *(struct brcmf_info **)netdev_priv(ndev); | ||
1304 | int timeout = 10 * HZ / 1000; | ||
1305 | int ntimes = MAX_WAIT_FOR_8021X_TX; | ||
1306 | int pend = brcmf_get_pend_8021x_cnt(drvr_priv); | ||
1307 | |||
1308 | while (ntimes && pend) { | ||
1309 | if (pend) { | ||
1310 | set_current_state(TASK_INTERRUPTIBLE); | ||
1311 | schedule_timeout(timeout); | ||
1312 | set_current_state(TASK_RUNNING); | ||
1313 | ntimes--; | ||
1314 | } | ||
1315 | pend = brcmf_get_pend_8021x_cnt(drvr_priv); | ||
1316 | } | ||
1317 | return pend; | ||
1318 | } | ||
1319 | |||
1320 | #ifdef BCMDBG | ||
1321 | int brcmf_write_to_file(struct brcmf_pub *drvr, u8 *buf, int size) | ||
1322 | { | ||
1323 | int ret = 0; | ||
1324 | struct file *fp; | ||
1325 | mm_segment_t old_fs; | ||
1326 | loff_t pos = 0; | ||
1327 | |||
1328 | /* change to KERNEL_DS address limit */ | ||
1329 | old_fs = get_fs(); | ||
1330 | set_fs(KERNEL_DS); | ||
1331 | |||
1332 | /* open file to write */ | ||
1333 | fp = filp_open("/tmp/mem_dump", O_WRONLY | O_CREAT, 0640); | ||
1334 | if (!fp) { | ||
1335 | brcmf_dbg(ERROR, "open file error\n"); | ||
1336 | ret = -1; | ||
1337 | goto exit; | ||
1338 | } | ||
1339 | |||
1340 | /* Write buf to file */ | ||
1341 | fp->f_op->write(fp, buf, size, &pos); | ||
1342 | |||
1343 | exit: | ||
1344 | /* free buf before return */ | ||
1345 | kfree(buf); | ||
1346 | /* close file before return */ | ||
1347 | if (fp) | ||
1348 | filp_close(fp, current->files); | ||
1349 | /* restore previous address limit */ | ||
1350 | set_fs(old_fs); | ||
1351 | |||
1352 | return ret; | ||
1353 | } | ||
1354 | #endif /* BCMDBG */ | ||