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libertas: fix build break by including linux/sched.h
[net-next-2.6.git] / drivers / net / wireless / libertas / cfg.c
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ff9fc791
HS		 1/*
2 * Implement cfg80211 ("iw") support.
3 *
4 * Copyright (C) 2009 M&N Solutions GmbH, 61191 Rosbach, Germany
5 * Holger Schurig <hs4233@mail.mn-solutions.de>
6 *
7 */
8
5a0e3ad6 9#include <linux/slab.h>
a9fda88b 10#include <linux/sched.h>
1047d5ed 11#include <linux/ieee80211.h>
ff9fc791 12#include <net/cfg80211.h>
e86dc1ca 13#include <asm/unaligned.h>
ff9fc791 14
e86dc1ca 15#include "decl.h"
ff9fc791
HS		 16#include "cfg.h"
17#include "cmd.h"
18
19
20#define CHAN2G(_channel, _freq, _flags) { \
21 .band = IEEE80211_BAND_2GHZ, \
22 .center_freq = (_freq), \
23 .hw_value = (_channel), \
24 .flags = (_flags), \
25 .max_antenna_gain = 0, \
26 .max_power = 30, \
27}
28
29static struct ieee80211_channel lbs_2ghz_channels[] = {
30 CHAN2G(1, 2412, 0),
31 CHAN2G(2, 2417, 0),
32 CHAN2G(3, 2422, 0),
33 CHAN2G(4, 2427, 0),
34 CHAN2G(5, 2432, 0),
35 CHAN2G(6, 2437, 0),
36 CHAN2G(7, 2442, 0),
37 CHAN2G(8, 2447, 0),
38 CHAN2G(9, 2452, 0),
39 CHAN2G(10, 2457, 0),
40 CHAN2G(11, 2462, 0),
41 CHAN2G(12, 2467, 0),
42 CHAN2G(13, 2472, 0),
43 CHAN2G(14, 2484, 0),
44};
45
e86dc1ca
KD		 46#define RATETAB_ENT(_rate, _hw_value, _flags) { \
47 .bitrate = (_rate), \
48 .hw_value = (_hw_value), \
49 .flags = (_flags), \
ff9fc791
HS		 50}
51
52
e86dc1ca 53/* Table 6 in section 3.2.1.1 */
ff9fc791 54static struct ieee80211_rate lbs_rates[] = {
e86dc1ca
KD		 55 RATETAB_ENT(10, 0, 0),
56 RATETAB_ENT(20, 1, 0),
57 RATETAB_ENT(55, 2, 0),
58 RATETAB_ENT(110, 3, 0),
59 RATETAB_ENT(60, 9, 0),
60 RATETAB_ENT(90, 6, 0),
61 RATETAB_ENT(120, 7, 0),
62 RATETAB_ENT(180, 8, 0),
63 RATETAB_ENT(240, 9, 0),
64 RATETAB_ENT(360, 10, 0),
65 RATETAB_ENT(480, 11, 0),
66 RATETAB_ENT(540, 12, 0),
ff9fc791
HS		 67};
68
69static struct ieee80211_supported_band lbs_band_2ghz = {
70 .channels = lbs_2ghz_channels,
71 .n_channels = ARRAY_SIZE(lbs_2ghz_channels),
72 .bitrates = lbs_rates,
73 .n_bitrates = ARRAY_SIZE(lbs_rates),
74};
75
76
77static const u32 cipher_suites[] = {
78 WLAN_CIPHER_SUITE_WEP40,
79 WLAN_CIPHER_SUITE_WEP104,
80 WLAN_CIPHER_SUITE_TKIP,
81 WLAN_CIPHER_SUITE_CCMP,
82};
83
e86dc1ca
KD		 84/* Time to stay on the channel */
85#define LBS_DWELL_PASSIVE 100
86#define LBS_DWELL_ACTIVE 40
ff9fc791
HS		 87
88
e86dc1ca
KD		 89/***************************************************************************
90 * Misc utility functions
91 *
92 * TLVs are Marvell specific. They are very similar to IEs, they have the
93 * same structure: type, length, data*. The only difference: for IEs, the
94 * type and length are u8, but for TLVs they're __le16.
95 */
96
97/*
98 * Convert NL80211's auth_type to the one from Libertas, see chapter 5.9.1
99 * in the firmware spec
100 */
101static u8 lbs_auth_to_authtype(enum nl80211_auth_type auth_type)
102{
103 int ret = -ENOTSUPP;
104
105 switch (auth_type) {
106 case NL80211_AUTHTYPE_OPEN_SYSTEM:
107 case NL80211_AUTHTYPE_SHARED_KEY:
108 ret = auth_type;
109 break;
110 case NL80211_AUTHTYPE_AUTOMATIC:
111 ret = NL80211_AUTHTYPE_OPEN_SYSTEM;
112 break;
113 case NL80211_AUTHTYPE_NETWORK_EAP:
114 ret = 0x80;
115 break;
116 default:
117 /* silence compiler */
118 break;
119 }
120 return ret;
121}
122
123
124/* Various firmware commands need the list of supported rates, but with
125 the hight-bit set for basic rates */
126static int lbs_add_rates(u8 *rates)
127{
128 size_t i;
129
130 for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
131 u8 rate = lbs_rates[i].bitrate / 5;
132 if (rate == 0x02 || rate == 0x04 ||
133 rate == 0x0b || rate == 0x16)
134 rate |= 0x80;
135 rates[i] = rate;
136 }
137 return ARRAY_SIZE(lbs_rates);
138}
139
140
141/***************************************************************************
142 * TLV utility functions
143 *
144 * TLVs are Marvell specific. They are very similar to IEs, they have the
145 * same structure: type, length, data*. The only difference: for IEs, the
146 * type and length are u8, but for TLVs they're __le16.
147 */
148
149
150/*
151 * Add ssid TLV
152 */
153#define LBS_MAX_SSID_TLV_SIZE \
154 (sizeof(struct mrvl_ie_header) \
155 + IEEE80211_MAX_SSID_LEN)
156
157static int lbs_add_ssid_tlv(u8 *tlv, const u8 *ssid, int ssid_len)
158{
159 struct mrvl_ie_ssid_param_set *ssid_tlv = (void *)tlv;
160
161 /*
162 * TLV-ID SSID 00 00
163 * length 06 00
164 * ssid 4d 4e 54 45 53 54
165 */
166 ssid_tlv->header.type = cpu_to_le16(TLV_TYPE_SSID);
167 ssid_tlv->header.len = cpu_to_le16(ssid_len);
168 memcpy(ssid_tlv->ssid, ssid, ssid_len);
169 return sizeof(ssid_tlv->header) + ssid_len;
170}
171
172
173/*
174 * Add channel list TLV (section 8.4.2)
175 *
176 * Actual channel data comes from priv->wdev->wiphy->channels.
177 */
178#define LBS_MAX_CHANNEL_LIST_TLV_SIZE \
179 (sizeof(struct mrvl_ie_header) \
180 + (LBS_SCAN_BEFORE_NAP * sizeof(struct chanscanparamset)))
181
182static int lbs_add_channel_list_tlv(struct lbs_private *priv, u8 *tlv,
183 int last_channel, int active_scan)
184{
185 int chanscanparamsize = sizeof(struct chanscanparamset) *
186 (last_channel - priv->scan_channel);
187
188 struct mrvl_ie_header *header = (void *) tlv;
189
190 /*
191 * TLV-ID CHANLIST 01 01
192 * length 0e 00
193 * channel 00 01 00 00 00 64 00
194 * radio type 00
195 * channel 01
196 * scan type 00
197 * min scan time 00 00
198 * max scan time 64 00
199 * channel 2 00 02 00 00 00 64 00
200 *
201 */
202
203 header->type = cpu_to_le16(TLV_TYPE_CHANLIST);
204 header->len = cpu_to_le16(chanscanparamsize);
205 tlv += sizeof(struct mrvl_ie_header);
206
207 /* lbs_deb_scan("scan: channels %d to %d\n", priv->scan_channel,
208 last_channel); */
209 memset(tlv, 0, chanscanparamsize);
210
211 while (priv->scan_channel < last_channel) {
212 struct chanscanparamset *param = (void *) tlv;
213
214 param->radiotype = CMD_SCAN_RADIO_TYPE_BG;
215 param->channumber =
216 priv->scan_req->channels[priv->scan_channel]->hw_value;
217 if (active_scan) {
218 param->maxscantime = cpu_to_le16(LBS_DWELL_ACTIVE);
219 } else {
220 param->chanscanmode.passivescan = 1;
221 param->maxscantime = cpu_to_le16(LBS_DWELL_PASSIVE);
222 }
223 tlv += sizeof(struct chanscanparamset);
224 priv->scan_channel++;
225 }
226 return sizeof(struct mrvl_ie_header) + chanscanparamsize;
227}
228
229
230/*
231 * Add rates TLV
232 *
233 * The rates are in lbs_bg_rates[], but for the 802.11b
234 * rates the high bit is set. We add this TLV only because
235 * there's a firmware which otherwise doesn't report all
236 * APs in range.
237 */
238#define LBS_MAX_RATES_TLV_SIZE \
239 (sizeof(struct mrvl_ie_header) \
240 + (ARRAY_SIZE(lbs_rates)))
241
242/* Adds a TLV with all rates the hardware supports */
243static int lbs_add_supported_rates_tlv(u8 *tlv)
244{
245 size_t i;
246 struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
247
248 /*
249 * TLV-ID RATES 01 00
250 * length 0e 00
251 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c
252 */
253 rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
254 tlv += sizeof(rate_tlv->header);
255 i = lbs_add_rates(tlv);
256 tlv += i;
257 rate_tlv->header.len = cpu_to_le16(i);
258 return sizeof(rate_tlv->header) + i;
259}
260
19757539
DW		 261/* Add common rates from a TLV and return the new end of the TLV */
262static u8 *
263add_ie_rates(u8 *tlv, const u8 *ie, int *nrates)
264{
265 int hw, ap, ap_max = ie[1];
266 u8 hw_rate;
267
268 /* Advance past IE header */
269 ie += 2;
270
271 lbs_deb_hex(LBS_DEB_ASSOC, "AP IE Rates", (u8 *) ie, ap_max);
272
273 for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
274 hw_rate = lbs_rates[hw].bitrate / 5;
275 for (ap = 0; ap < ap_max; ap++) {
276 if (hw_rate == (ie[ap] & 0x7f)) {
277 *tlv++ = ie[ap];
278 *nrates = *nrates + 1;
279 }
280 }
281 }
282 return tlv;
283}
e86dc1ca
KD		 284
285/*
286 * Adds a TLV with all rates the hardware *and* BSS supports.
287 */
288static int lbs_add_common_rates_tlv(u8 *tlv, struct cfg80211_bss *bss)
289{
290 struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
19757539
DW		 291 const u8 *rates_eid, *ext_rates_eid;
292 int n = 0;
293
294 rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
295 ext_rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_EXT_SUPP_RATES);
e86dc1ca
KD		 296
297 /*
298 * 01 00 TLV_TYPE_RATES
299 * 04 00 len
300 * 82 84 8b 96 rates
301 */
302 rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
303 tlv += sizeof(rate_tlv->header);
304
19757539
DW		 305 /* Add basic rates */
306 if (rates_eid) {
307 tlv = add_ie_rates(tlv, rates_eid, &n);
308
309 /* Add extended rates, if any */
310 if (ext_rates_eid)
311 tlv = add_ie_rates(tlv, ext_rates_eid, &n);
312 } else {
313 lbs_deb_assoc("assoc: bss had no basic rate IE\n");
e86dc1ca
KD		 314 /* Fallback: add basic 802.11b rates */
315 *tlv++ = 0x82;
316 *tlv++ = 0x84;
317 *tlv++ = 0x8b;
318 *tlv++ = 0x96;
319 n = 4;
e86dc1ca
KD		 320 }
321
322 rate_tlv->header.len = cpu_to_le16(n);
323 return sizeof(rate_tlv->header) + n;
324}
325
326
327/*
328 * Add auth type TLV.
329 *
330 * This is only needed for newer firmware (V9 and up).
331 */
332#define LBS_MAX_AUTH_TYPE_TLV_SIZE \
333 sizeof(struct mrvl_ie_auth_type)
334
335static int lbs_add_auth_type_tlv(u8 *tlv, enum nl80211_auth_type auth_type)
336{
337 struct mrvl_ie_auth_type *auth = (void *) tlv;
338
339 /*
340 * 1f 01 TLV_TYPE_AUTH_TYPE
341 * 01 00 len
342 * 01 auth type
343 */
344 auth->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
345 auth->header.len = cpu_to_le16(sizeof(*auth)-sizeof(auth->header));
346 auth->auth = cpu_to_le16(lbs_auth_to_authtype(auth_type));
347 return sizeof(*auth);
348}
349
350
351/*
352 * Add channel (phy ds) TLV
353 */
354#define LBS_MAX_CHANNEL_TLV_SIZE \
355 sizeof(struct mrvl_ie_header)
356
357static int lbs_add_channel_tlv(u8 *tlv, u8 channel)
358{
359 struct mrvl_ie_ds_param_set *ds = (void *) tlv;
360
361 /*
362 * 03 00 TLV_TYPE_PHY_DS
363 * 01 00 len
364 * 06 channel
365 */
366 ds->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
367 ds->header.len = cpu_to_le16(sizeof(*ds)-sizeof(ds->header));
368 ds->channel = channel;
369 return sizeof(*ds);
370}
371
372
373/*
374 * Add (empty) CF param TLV of the form:
375 */
376#define LBS_MAX_CF_PARAM_TLV_SIZE \
377 sizeof(struct mrvl_ie_header)
378
379static int lbs_add_cf_param_tlv(u8 *tlv)
380{
381 struct mrvl_ie_cf_param_set *cf = (void *)tlv;
382
383 /*
384 * 04 00 TLV_TYPE_CF
385 * 06 00 len
386 * 00 cfpcnt
387 * 00 cfpperiod
388 * 00 00 cfpmaxduration
389 * 00 00 cfpdurationremaining
390 */
391 cf->header.type = cpu_to_le16(TLV_TYPE_CF);
392 cf->header.len = cpu_to_le16(sizeof(*cf)-sizeof(cf->header));
393 return sizeof(*cf);
394}
395
396/*
397 * Add WPA TLV
398 */
399#define LBS_MAX_WPA_TLV_SIZE \
400 (sizeof(struct mrvl_ie_header) \
401 + 128 /* TODO: I guessed the size */)
402
403static int lbs_add_wpa_tlv(u8 *tlv, const u8 *ie, u8 ie_len)
404{
405 size_t tlv_len;
406
407 /*
408 * We need just convert an IE to an TLV. IEs use u8 for the header,
409 * u8 type
410 * u8 len
411 * u8[] data
412 * but TLVs use __le16 instead:
413 * __le16 type
414 * __le16 len
415 * u8[] data
416 */
417 *tlv++ = *ie++;
418 *tlv++ = 0;
419 tlv_len = *tlv++ = *ie++;
420 *tlv++ = 0;
421 while (tlv_len--)
422 *tlv++ = *ie++;
423 /* the TLV is two bytes larger than the IE */
424 return ie_len + 2;
425}
426
427/***************************************************************************
428 * Set Channel
429 */
430
ff9fc791 431static int lbs_cfg_set_channel(struct wiphy *wiphy,
f444de05 432 struct net_device *netdev,
e86dc1ca 433 struct ieee80211_channel *channel,
ff9fc791
HS		 434 enum nl80211_channel_type channel_type)
435{
436 struct lbs_private *priv = wiphy_priv(wiphy);
e86dc1ca
KD		 437 int ret = -ENOTSUPP;
438
439 lbs_deb_enter_args(LBS_DEB_CFG80211, "freq %d, type %d",
440 channel->center_freq, channel_type);
441
442 if (channel_type != NL80211_CHAN_NO_HT)
443 goto out;
444
445 ret = lbs_set_channel(priv, channel->hw_value);
446
447 out:
448 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
449 return ret;
450}
451
452
453
454/***************************************************************************
455 * Scanning
456 */
457
458/*
459 * When scanning, the firmware doesn't send a nul packet with the power-safe
460 * bit to the AP. So we cannot stay away from our current channel too long,
461 * otherwise we loose data. So take a "nap" while scanning every other
462 * while.
463 */
464#define LBS_SCAN_BEFORE_NAP 4
465
466
467/*
468 * When the firmware reports back a scan-result, it gives us an "u8 rssi",
469 * which isn't really an RSSI, as it becomes larger when moving away from
470 * the AP. Anyway, we need to convert that into mBm.
471 */
472#define LBS_SCAN_RSSI_TO_MBM(rssi) \
473 ((-(int)rssi + 3)*100)
474
475static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy,
476 struct cmd_header *resp)
477{
478 struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp;
479 int bsssize;
480 const u8 *pos;
481 u16 nr_sets;
482 const u8 *tsfdesc;
483 int tsfsize;
484 int i;
485 int ret = -EILSEQ;
486
487 lbs_deb_enter(LBS_DEB_CFG80211);
488
489 bsssize = get_unaligned_le16(&scanresp->bssdescriptsize);
aebb628f
DW		 490 nr_sets = le16_to_cpu(scanresp->nr_sets);
491
492 lbs_deb_scan("scan response: %d BSSs (%d bytes); resp size %d bytes\n",
493 nr_sets, bsssize, le16_to_cpu(resp->size));
494
495 if (nr_sets == 0) {
496 ret = 0;
497 goto done;
498 }
e86dc1ca
KD		 499
500 /*
501 * The general layout of the scan response is described in chapter
502 * 5.7.1. Basically we have a common part, then any number of BSS
503 * descriptor sections. Finally we have section with the same number
504 * of TSFs.
505 *
506 * cmd_ds_802_11_scan_rsp
507 * cmd_header
508 * pos_size
509 * nr_sets
510 * bssdesc 1
511 * bssid
512 * rssi
513 * timestamp
514 * intvl
515 * capa
516 * IEs
517 * bssdesc 2
518 * bssdesc n
519 * MrvlIEtypes_TsfFimestamp_t
520 * TSF for BSS 1
521 * TSF for BSS 2
522 * TSF for BSS n
523 */
524
525 pos = scanresp->bssdesc_and_tlvbuffer;
526
527 tsfdesc = pos + bsssize;
528 tsfsize = 4 + 8 * scanresp->nr_sets;
529
530 /* Validity check: we expect a Marvell-Local TLV */
531 i = get_unaligned_le16(tsfdesc);
532 tsfdesc += 2;
533 if (i != TLV_TYPE_TSFTIMESTAMP)
534 goto done;
535 /* Validity check: the TLV holds TSF values with 8 bytes each, so
536 * the size in the TLV must match the nr_sets value */
537 i = get_unaligned_le16(tsfdesc);
538 tsfdesc += 2;
539 if (i / 8 != scanresp->nr_sets)
540 goto done;
541
542 for (i = 0; i < scanresp->nr_sets; i++) {
543 const u8 *bssid;
544 const u8 *ie;
545 int left;
546 int ielen;
547 int rssi;
548 u16 intvl;
549 u16 capa;
550 int chan_no = -1;
551 const u8 *ssid = NULL;
552 u8 ssid_len = 0;
553 DECLARE_SSID_BUF(ssid_buf);
554
555 int len = get_unaligned_le16(pos);
556 pos += 2;
557
558 /* BSSID */
559 bssid = pos;
560 pos += ETH_ALEN;
561 /* RSSI */
562 rssi = *pos++;
563 /* Packet time stamp */
564 pos += 8;
565 /* Beacon interval */
566 intvl = get_unaligned_le16(pos);
567 pos += 2;
568 /* Capabilities */
569 capa = get_unaligned_le16(pos);
570 pos += 2;
571
572 /* To find out the channel, we must parse the IEs */
573 ie = pos;
574 /* 6+1+8+2+2: size of BSSID, RSSI, time stamp, beacon
575 interval, capabilities */
576 ielen = left = len - (6 + 1 + 8 + 2 + 2);
577 while (left >= 2) {
578 u8 id, elen;
579 id = *pos++;
580 elen = *pos++;
581 left -= 2;
582 if (elen > left || elen == 0)
583 goto done;
584 if (id == WLAN_EID_DS_PARAMS)
585 chan_no = *pos;
586 if (id == WLAN_EID_SSID) {
587 ssid = pos;
588 ssid_len = elen;
589 }
590 left -= elen;
591 pos += elen;
592 }
593
594 /* No channel, no luck */
595 if (chan_no != -1) {
596 struct wiphy *wiphy = priv->wdev->wiphy;
597 int freq = ieee80211_channel_to_frequency(chan_no);
598 struct ieee80211_channel *channel =
599 ieee80211_get_channel(wiphy, freq);
600
601 lbs_deb_scan("scan: %pM, capa %04x, chan %2d, %s, "
602 "%d dBm\n",
603 bssid, capa, chan_no,
604 print_ssid(ssid_buf, ssid, ssid_len),
605 LBS_SCAN_RSSI_TO_MBM(rssi)/100);
606
607 if (channel ||
608 !(channel->flags & IEEE80211_CHAN_DISABLED))
609 cfg80211_inform_bss(wiphy, channel,
610 bssid, le64_to_cpu(*(__le64 *)tsfdesc),
611 capa, intvl, ie, ielen,
612 LBS_SCAN_RSSI_TO_MBM(rssi),
613 GFP_KERNEL);
614 }
615 tsfdesc += 8;
616 }
617 ret = 0;
618
619 done:
620 lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
621 return ret;
622}
623
624
625/*
626 * Our scan command contains a TLV, consting of a SSID TLV, a channel list
627 * TLV and a rates TLV. Determine the maximum size of them:
628 */
629#define LBS_SCAN_MAX_CMD_SIZE \
630 (sizeof(struct cmd_ds_802_11_scan) \
631 + LBS_MAX_SSID_TLV_SIZE \
632 + LBS_MAX_CHANNEL_LIST_TLV_SIZE \
633 + LBS_MAX_RATES_TLV_SIZE)
634
635/*
636 * Assumes priv->scan_req is initialized and valid
637 * Assumes priv->scan_channel is initialized
638 */
639static void lbs_scan_worker(struct work_struct *work)
640{
641 struct lbs_private *priv =
642 container_of(work, struct lbs_private, scan_work.work);
643 struct cmd_ds_802_11_scan *scan_cmd;
644 u8 *tlv; /* pointer into our current, growing TLV storage area */
645 int last_channel;
646 int running, carrier;
647
648 lbs_deb_enter(LBS_DEB_SCAN);
649
650 scan_cmd = kzalloc(LBS_SCAN_MAX_CMD_SIZE, GFP_KERNEL);
651 if (scan_cmd == NULL)
652 goto out_no_scan_cmd;
653
654 /* prepare fixed part of scan command */
655 scan_cmd->bsstype = CMD_BSS_TYPE_ANY;
656
657 /* stop network while we're away from our main channel */
658 running = !netif_queue_stopped(priv->dev);
659 carrier = netif_carrier_ok(priv->dev);
660 if (running)
661 netif_stop_queue(priv->dev);
662 if (carrier)
663 netif_carrier_off(priv->dev);
664
665 /* prepare fixed part of scan command */
666 tlv = scan_cmd->tlvbuffer;
667
668 /* add SSID TLV */
669 if (priv->scan_req->n_ssids)
670 tlv += lbs_add_ssid_tlv(tlv,
671 priv->scan_req->ssids[0].ssid,
672 priv->scan_req->ssids[0].ssid_len);
673
674 /* add channel TLVs */
675 last_channel = priv->scan_channel + LBS_SCAN_BEFORE_NAP;
676 if (last_channel > priv->scan_req->n_channels)
677 last_channel = priv->scan_req->n_channels;
678 tlv += lbs_add_channel_list_tlv(priv, tlv, last_channel,
679 priv->scan_req->n_ssids);
680
681 /* add rates TLV */
682 tlv += lbs_add_supported_rates_tlv(tlv);
683
684 if (priv->scan_channel < priv->scan_req->n_channels) {
685 cancel_delayed_work(&priv->scan_work);
686 queue_delayed_work(priv->work_thread, &priv->scan_work,
687 msecs_to_jiffies(300));
688 }
689
690 /* This is the final data we are about to send */
691 scan_cmd->hdr.size = cpu_to_le16(tlv - (u8 *)scan_cmd);
692 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_CMD", (void *)scan_cmd,
693 sizeof(*scan_cmd));
694 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TLV", scan_cmd->tlvbuffer,
695 tlv - scan_cmd->tlvbuffer);
696
697 __lbs_cmd(priv, CMD_802_11_SCAN, &scan_cmd->hdr,
698 le16_to_cpu(scan_cmd->hdr.size),
699 lbs_ret_scan, 0);
700
701 if (priv->scan_channel >= priv->scan_req->n_channels) {
702 /* Mark scan done */
cc026819
DW		 703 if (priv->internal_scan)
704 kfree(priv->scan_req);
705 else
706 cfg80211_scan_done(priv->scan_req, false);
707
e86dc1ca 708 priv->scan_req = NULL;
cc026819 709 priv->last_scan = jiffies;
e86dc1ca
KD		 710 }
711
712 /* Restart network */
713 if (carrier)
714 netif_carrier_on(priv->dev);
715 if (running && !priv->tx_pending_len)
716 netif_wake_queue(priv->dev);
717
718 kfree(scan_cmd);
719
cc026819
DW		 720 /* Wake up anything waiting on scan completion */
721 if (priv->scan_req == NULL) {
722 lbs_deb_scan("scan: waking up waiters\n");
723 wake_up_all(&priv->scan_q);
724 }
725
e86dc1ca
KD		 726 out_no_scan_cmd:
727 lbs_deb_leave(LBS_DEB_SCAN);
728}
729
cc026819
DW		 730static void _internal_start_scan(struct lbs_private *priv, bool internal,
731 struct cfg80211_scan_request *request)
732{
733 lbs_deb_enter(LBS_DEB_CFG80211);
734
735 lbs_deb_scan("scan: ssids %d, channels %d, ie_len %zd\n",
736 request->n_ssids, request->n_channels, request->ie_len);
737
738 priv->scan_channel = 0;
739 queue_delayed_work(priv->work_thread, &priv->scan_work,
740 msecs_to_jiffies(50));
741
742 priv->scan_req = request;
743 priv->internal_scan = internal;
744
745 lbs_deb_leave(LBS_DEB_CFG80211);
746}
e86dc1ca
KD		 747
748static int lbs_cfg_scan(struct wiphy *wiphy,
749 struct net_device *dev,
750 struct cfg80211_scan_request *request)
751{
752 struct lbs_private *priv = wiphy_priv(wiphy);
753 int ret = 0;
754
755 lbs_deb_enter(LBS_DEB_CFG80211);
756
757 if (priv->scan_req || delayed_work_pending(&priv->scan_work)) {
758 /* old scan request not yet processed */
759 ret = -EAGAIN;
760 goto out;
761 }
762
cc026819 763 _internal_start_scan(priv, false, request);
e86dc1ca
KD		 764
765 if (priv->surpriseremoved)
766 ret = -EIO;
767
e86dc1ca
KD		 768 out:
769 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
770 return ret;
771}
772
773
774
775
776/***************************************************************************
777 * Events
778 */
779
780void lbs_send_disconnect_notification(struct lbs_private *priv)
781{
782 lbs_deb_enter(LBS_DEB_CFG80211);
783
784 cfg80211_disconnected(priv->dev,
785 0,
786 NULL, 0,
787 GFP_KERNEL);
788
789 lbs_deb_leave(LBS_DEB_CFG80211);
790}
791
792void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event)
793{
794 lbs_deb_enter(LBS_DEB_CFG80211);
795
796 cfg80211_michael_mic_failure(priv->dev,
797 priv->assoc_bss,
798 event == MACREG_INT_CODE_MIC_ERR_MULTICAST ?
799 NL80211_KEYTYPE_GROUP :
800 NL80211_KEYTYPE_PAIRWISE,
801 -1,
802 NULL,
803 GFP_KERNEL);
804
805 lbs_deb_leave(LBS_DEB_CFG80211);
806}
807
808
809
810
811/***************************************************************************
812 * Connect/disconnect
813 */
814
815
816/*
817 * This removes all WEP keys
818 */
819static int lbs_remove_wep_keys(struct lbs_private *priv)
820{
821 struct cmd_ds_802_11_set_wep cmd;
822 int ret;
823
824 lbs_deb_enter(LBS_DEB_CFG80211);
825
826 memset(&cmd, 0, sizeof(cmd));
827 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
828 cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
829 cmd.action = cpu_to_le16(CMD_ACT_REMOVE);
830
831 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
832
833 lbs_deb_leave(LBS_DEB_CFG80211);
834 return ret;
835}
836
837/*
838 * Set WEP keys
839 */
840static int lbs_set_wep_keys(struct lbs_private *priv)
841{
842 struct cmd_ds_802_11_set_wep cmd;
843 int i;
844 int ret;
845
846 lbs_deb_enter(LBS_DEB_CFG80211);
847
848 /*
849 * command 13 00
850 * size 50 00
851 * sequence xx xx
852 * result 00 00
853 * action 02 00 ACT_ADD
854 * transmit key 00 00
855 * type for key 1 01 WEP40
856 * type for key 2 00
857 * type for key 3 00
858 * type for key 4 00
859 * key 1 39 39 39 39 39 00 00 00
860 * 00 00 00 00 00 00 00 00
861 * key 2 00 00 00 00 00 00 00 00
862 * 00 00 00 00 00 00 00 00
863 * key 3 00 00 00 00 00 00 00 00
864 * 00 00 00 00 00 00 00 00
865 * key 4 00 00 00 00 00 00 00 00
866 */
867 if (priv->wep_key_len[0] || priv->wep_key_len[1] ||
868 priv->wep_key_len[2] || priv->wep_key_len[3]) {
869 /* Only set wep keys if we have at least one of them */
870 memset(&cmd, 0, sizeof(cmd));
871 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
872 cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
873 cmd.action = cpu_to_le16(CMD_ACT_ADD);
874
875 for (i = 0; i < 4; i++) {
876 switch (priv->wep_key_len[i]) {
877 case WLAN_KEY_LEN_WEP40:
878 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
879 break;
880 case WLAN_KEY_LEN_WEP104:
881 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
882 break;
883 default:
884 cmd.keytype[i] = 0;
885 break;
886 }
887 memcpy(cmd.keymaterial[i], priv->wep_key[i],
888 priv->wep_key_len[i]);
889 }
890
891 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
892 } else {
893 /* Otherwise remove all wep keys */
894 ret = lbs_remove_wep_keys(priv);
895 }
896
897 lbs_deb_leave(LBS_DEB_CFG80211);
898 return ret;
899}
900
901
902/*
903 * Enable/Disable RSN status
904 */
905static int lbs_enable_rsn(struct lbs_private *priv, int enable)
906{
907 struct cmd_ds_802_11_enable_rsn cmd;
908 int ret;
909
910 lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", enable);
911
912 /*
913 * cmd 2f 00
914 * size 0c 00
915 * sequence xx xx
916 * result 00 00
917 * action 01 00 ACT_SET
918 * enable 01 00
919 */
920 memset(&cmd, 0, sizeof(cmd));
921 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
922 cmd.action = cpu_to_le16(CMD_ACT_SET);
923 cmd.enable = cpu_to_le16(enable);
924
925 ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
926
927 lbs_deb_leave(LBS_DEB_CFG80211);
928 return ret;
929}
930
931
932/*
933 * Set WPA/WPA key material
934 */
935
936/* like "struct cmd_ds_802_11_key_material", but with cmd_header. Once we
937 * get rid of WEXT, this should go into host.h */
938
939struct cmd_key_material {
940 struct cmd_header hdr;
941
942 __le16 action;
943 struct MrvlIEtype_keyParamSet param;
beabe914 944} __packed;
e86dc1ca
KD		 945
946static int lbs_set_key_material(struct lbs_private *priv,
947 int key_type,
948 int key_info,
949 u8 *key, u16 key_len)
950{
951 struct cmd_key_material cmd;
952 int ret;
953
954 lbs_deb_enter(LBS_DEB_CFG80211);
955
956 /*
957 * Example for WPA (TKIP):
958 *
959 * cmd 5e 00
960 * size 34 00
961 * sequence xx xx
962 * result 00 00
963 * action 01 00
964 * TLV type 00 01 key param
965 * length 00 26
966 * key type 01 00 TKIP
967 * key info 06 00 UNICAST | ENABLED
968 * key len 20 00
969 * key 32 bytes
970 */
971 memset(&cmd, 0, sizeof(cmd));
972 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
973 cmd.action = cpu_to_le16(CMD_ACT_SET);
974 cmd.param.type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
975 cmd.param.length = cpu_to_le16(sizeof(cmd.param) - 4);
976 cmd.param.keytypeid = cpu_to_le16(key_type);
977 cmd.param.keyinfo = cpu_to_le16(key_info);
978 cmd.param.keylen = cpu_to_le16(key_len);
979 if (key && key_len)
980 memcpy(cmd.param.key, key, key_len);
981
982 ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
983
984 lbs_deb_leave(LBS_DEB_CFG80211);
985 return ret;
986}
987
988
989/*
990 * Sets the auth type (open, shared, etc) in the firmware. That
991 * we use CMD_802_11_AUTHENTICATE is misleading, this firmware
992 * command doesn't send an authentication frame at all, it just
993 * stores the auth_type.
994 */
995static int lbs_set_authtype(struct lbs_private *priv,
996 struct cfg80211_connect_params *sme)
997{
998 struct cmd_ds_802_11_authenticate cmd;
999 int ret;
1000
1001 lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", sme->auth_type);
1002
1003 /*
1004 * cmd 11 00
1005 * size 19 00
1006 * sequence xx xx
1007 * result 00 00
1008 * BSS id 00 13 19 80 da 30
1009 * auth type 00
1010 * reserved 00 00 00 00 00 00 00 00 00 00
1011 */
1012 memset(&cmd, 0, sizeof(cmd));
1013 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1014 if (sme->bssid)
1015 memcpy(cmd.bssid, sme->bssid, ETH_ALEN);
1016 /* convert auth_type */
1017 ret = lbs_auth_to_authtype(sme->auth_type);
1018 if (ret < 0)
1019 goto done;
1020
1021 cmd.authtype = ret;
1022 ret = lbs_cmd_with_response(priv, CMD_802_11_AUTHENTICATE, &cmd);
1023
1024 done:
1025 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1026 return ret;
1027}
1028
1029
1030/*
1031 * Create association request
1032 */
1033#define LBS_ASSOC_MAX_CMD_SIZE \
1034 (sizeof(struct cmd_ds_802_11_associate) \
1035 - 512 /* cmd_ds_802_11_associate.iebuf */ \
1036 + LBS_MAX_SSID_TLV_SIZE \
1037 + LBS_MAX_CHANNEL_TLV_SIZE \
1038 + LBS_MAX_CF_PARAM_TLV_SIZE \
1039 + LBS_MAX_AUTH_TYPE_TLV_SIZE \
1040 + LBS_MAX_WPA_TLV_SIZE)
1041
1042static int lbs_associate(struct lbs_private *priv,
1043 struct cfg80211_bss *bss,
1044 struct cfg80211_connect_params *sme)
1045{
1046 struct cmd_ds_802_11_associate_response *resp;
1047 struct cmd_ds_802_11_associate *cmd = kzalloc(LBS_ASSOC_MAX_CMD_SIZE,
1048 GFP_KERNEL);
1049 const u8 *ssid_eid;
1050 size_t len, resp_ie_len;
1051 int status;
1052 int ret;
1053 u8 *pos = &(cmd->iebuf[0]);
19757539 1054 u8 *tmp;
e86dc1ca
KD		 1055
1056 lbs_deb_enter(LBS_DEB_CFG80211);
1057
1058 if (!cmd) {
1059 ret = -ENOMEM;
1060 goto done;
1061 }
1062
1063 /*
1064 * cmd 50 00
1065 * length 34 00
1066 * sequence xx xx
1067 * result 00 00
1068 * BSS id 00 13 19 80 da 30
1069 * capabilities 11 00
1070 * listen interval 0a 00
1071 * beacon interval 00 00
1072 * DTIM period 00
1073 * TLVs xx (up to 512 bytes)
1074 */
1075 cmd->hdr.command = cpu_to_le16(CMD_802_11_ASSOCIATE);
1076
1077 /* Fill in static fields */
1078 memcpy(cmd->bssid, bss->bssid, ETH_ALEN);
1079 cmd->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
1080 cmd->capability = cpu_to_le16(bss->capability);
1081
1082 /* add SSID TLV */
1083 ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
1084 if (ssid_eid)
1085 pos += lbs_add_ssid_tlv(pos, ssid_eid + 2, ssid_eid[1]);
1086 else
1087 lbs_deb_assoc("no SSID\n");
1088
1089 /* add DS param TLV */
1090 if (bss->channel)
1091 pos += lbs_add_channel_tlv(pos, bss->channel->hw_value);
1092 else
1093 lbs_deb_assoc("no channel\n");
1094
1095 /* add (empty) CF param TLV */
1096 pos += lbs_add_cf_param_tlv(pos);
1097
1098 /* add rates TLV */
19757539 1099 tmp = pos + 4; /* skip Marvell IE header */
e86dc1ca 1100 pos += lbs_add_common_rates_tlv(pos, bss);
19757539 1101 lbs_deb_hex(LBS_DEB_ASSOC, "Common Rates", tmp, pos - tmp);
e86dc1ca
KD		 1102
1103 /* add auth type TLV */
1104 if (priv->fwrelease >= 0x09000000)
1105 pos += lbs_add_auth_type_tlv(pos, sme->auth_type);
1106
1107 /* add WPA/WPA2 TLV */
1108 if (sme->ie && sme->ie_len)
1109 pos += lbs_add_wpa_tlv(pos, sme->ie, sme->ie_len);
1110
1111 len = (sizeof(*cmd) - sizeof(cmd->iebuf)) +
1112 (u16)(pos - (u8 *) &cmd->iebuf);
1113 cmd->hdr.size = cpu_to_le16(len);
1114
1115 /* store for later use */
1116 memcpy(priv->assoc_bss, bss->bssid, ETH_ALEN);
1117
1118 ret = lbs_cmd_with_response(priv, CMD_802_11_ASSOCIATE, cmd);
1119 if (ret)
1120 goto done;
1121
1122
1123 /* generate connect message to cfg80211 */
1124
1125 resp = (void *) cmd; /* recast for easier field access */
1126 status = le16_to_cpu(resp->statuscode);
1127
1128 /* Convert statis code of old firmware */
1129 if (priv->fwrelease < 0x09000000)
1130 switch (status) {
1131 case 0:
1132 break;
1133 case 1:
1134 lbs_deb_assoc("invalid association parameters\n");
1135 status = WLAN_STATUS_CAPS_UNSUPPORTED;
1136 break;
1137 case 2:
1138 lbs_deb_assoc("timer expired while waiting for AP\n");
1139 status = WLAN_STATUS_AUTH_TIMEOUT;
1140 break;
1141 case 3:
1142 lbs_deb_assoc("association refused by AP\n");
1143 status = WLAN_STATUS_ASSOC_DENIED_UNSPEC;
1144 break;
1145 case 4:
1146 lbs_deb_assoc("authentication refused by AP\n");
1147 status = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION;
1148 break;
1149 default:
1150 lbs_deb_assoc("association failure %d\n", status);
1151 status = WLAN_STATUS_UNSPECIFIED_FAILURE;
1152 }
1153
1154 lbs_deb_assoc("status %d, capability 0x%04x\n", status,
1155 le16_to_cpu(resp->capability));
1156
1157 resp_ie_len = le16_to_cpu(resp->hdr.size)
1158 - sizeof(resp->hdr)
1159 - 6;
1160 cfg80211_connect_result(priv->dev,
1161 priv->assoc_bss,
1162 sme->ie, sme->ie_len,
1163 resp->iebuf, resp_ie_len,
1164 status,
1165 GFP_KERNEL);
1166
1167 if (status == 0) {
1168 /* TODO: get rid of priv->connect_status */
1169 priv->connect_status = LBS_CONNECTED;
1170 netif_carrier_on(priv->dev);
1171 if (!priv->tx_pending_len)
1172 netif_tx_wake_all_queues(priv->dev);
1173 }
1174
1175
1176done:
1177 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1178 return ret;
1179}
1180
cc026819
DW		 1181static struct cfg80211_scan_request *
1182_new_connect_scan_req(struct wiphy *wiphy, struct cfg80211_connect_params *sme)
1183{
1184 struct cfg80211_scan_request *creq = NULL;
1185 int i, n_channels = 0;
1186 enum ieee80211_band band;
1187
1188 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1189 if (wiphy->bands[band])
1190 n_channels += wiphy->bands[band]->n_channels;
1191 }
1192
1193 creq = kzalloc(sizeof(*creq) + sizeof(struct cfg80211_ssid) +
1194 n_channels * sizeof(void *),
1195 GFP_ATOMIC);
1196 if (!creq)
1197 return NULL;
1198
1199 /* SSIDs come after channels */
1200 creq->ssids = (void *)&creq->channels[n_channels];
1201 creq->n_channels = n_channels;
1202 creq->n_ssids = 1;
1203
1204 /* Scan all available channels */
1205 i = 0;
1206 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1207 int j;
1208
1209 if (!wiphy->bands[band])
1210 continue;
1211
1212 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
1213 /* ignore disabled channels */
1214 if (wiphy->bands[band]->channels[j].flags &
1215 IEEE80211_CHAN_DISABLED)
1216 continue;
1217
1218 creq->channels[i] = &wiphy->bands[band]->channels[j];
1219 i++;
1220 }
1221 }
1222 if (i) {
1223 /* Set real number of channels specified in creq->channels[] */
1224 creq->n_channels = i;
1225
1226 /* Scan for the SSID we're going to connect to */
1227 memcpy(creq->ssids[0].ssid, sme->ssid, sme->ssid_len);
1228 creq->ssids[0].ssid_len = sme->ssid_len;
1229 } else {
1230 /* No channels found... */
1231 kfree(creq);
1232 creq = NULL;
1233 }
e86dc1ca 1234
cc026819
DW		 1235 return creq;
1236}
e86dc1ca
KD		 1237
1238static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev,
1239 struct cfg80211_connect_params *sme)
1240{
1241 struct lbs_private *priv = wiphy_priv(wiphy);
1242 struct cfg80211_bss *bss = NULL;
1243 int ret = 0;
1244 u8 preamble = RADIO_PREAMBLE_SHORT;
1245
1246 lbs_deb_enter(LBS_DEB_CFG80211);
1247
cc026819
DW		 1248 if (!sme->bssid) {
1249 /* Run a scan if one isn't in-progress already and if the last
1250 * scan was done more than 2 seconds ago.
e86dc1ca 1251 */
cc026819
DW		 1252 if (priv->scan_req == NULL &&
1253 time_after(jiffies, priv->last_scan + (2 * HZ))) {
1254 struct cfg80211_scan_request *creq;
e86dc1ca 1255
cc026819
DW		 1256 creq = _new_connect_scan_req(wiphy, sme);
1257 if (!creq) {
1258 ret = -EINVAL;
1259 goto done;
1260 }
1261
1262 lbs_deb_assoc("assoc: scanning for compatible AP\n");
1263 _internal_start_scan(priv, true, creq);
1264 }
1265
1266 /* Wait for any in-progress scan to complete */
1267 lbs_deb_assoc("assoc: waiting for scan to complete\n");
1268 wait_event_interruptible_timeout(priv->scan_q,
1269 (priv->scan_req == NULL),
1270 (15 * HZ));
1271 lbs_deb_assoc("assoc: scanning competed\n");
1272 }
e86dc1ca 1273
cc026819
DW		 1274 /* Find the BSS we want using available scan results */
1275 bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
1276 sme->ssid, sme->ssid_len,
1277 WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
e86dc1ca 1278 if (!bss) {
cc026819 1279 lbs_pr_err("assoc: bss %pM not in scan results\n",
e86dc1ca
KD		 1280 sme->bssid);
1281 ret = -ENOENT;
1282 goto done;
1283 }
cc026819 1284 lbs_deb_assoc("trying %pM\n", bss->bssid);
e86dc1ca
KD		 1285 lbs_deb_assoc("cipher 0x%x, key index %d, key len %d\n",
1286 sme->crypto.cipher_group,
1287 sme->key_idx, sme->key_len);
1288
1289 /* As this is a new connection, clear locally stored WEP keys */
1290 priv->wep_tx_key = 0;
1291 memset(priv->wep_key, 0, sizeof(priv->wep_key));
1292 memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len));
1293
1294 /* set/remove WEP keys */
1295 switch (sme->crypto.cipher_group) {
1296 case WLAN_CIPHER_SUITE_WEP40:
1297 case WLAN_CIPHER_SUITE_WEP104:
1298 /* Store provided WEP keys in priv-> */
1299 priv->wep_tx_key = sme->key_idx;
1300 priv->wep_key_len[sme->key_idx] = sme->key_len;
1301 memcpy(priv->wep_key[sme->key_idx], sme->key, sme->key_len);
1302 /* Set WEP keys and WEP mode */
1303 lbs_set_wep_keys(priv);
1304 priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE;
1305 lbs_set_mac_control(priv);
1306 /* No RSN mode for WEP */
1307 lbs_enable_rsn(priv, 0);
1308 break;
1309 case 0: /* there's no WLAN_CIPHER_SUITE_NONE definition */
1310 /*
1311 * If we don't have no WEP, no WPA and no WPA2,
1312 * we remove all keys like in the WPA/WPA2 setup,
1313 * we just don't set RSN.
1314 *
1315 * Therefore: fall-throught
1316 */
1317 case WLAN_CIPHER_SUITE_TKIP:
1318 case WLAN_CIPHER_SUITE_CCMP:
1319 /* Remove WEP keys and WEP mode */
1320 lbs_remove_wep_keys(priv);
1321 priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE;
1322 lbs_set_mac_control(priv);
1323
1324 /* clear the WPA/WPA2 keys */
1325 lbs_set_key_material(priv,
1326 KEY_TYPE_ID_WEP, /* doesn't matter */
1327 KEY_INFO_WPA_UNICAST,
1328 NULL, 0);
1329 lbs_set_key_material(priv,
1330 KEY_TYPE_ID_WEP, /* doesn't matter */
1331 KEY_INFO_WPA_MCAST,
1332 NULL, 0);
1333 /* RSN mode for WPA/WPA2 */
1334 lbs_enable_rsn(priv, sme->crypto.cipher_group != 0);
1335 break;
1336 default:
1337 lbs_pr_err("unsupported cipher group 0x%x\n",
1338 sme->crypto.cipher_group);
1339 ret = -ENOTSUPP;
1340 goto done;
1341 }
1342
1343 lbs_set_authtype(priv, sme);
1344 lbs_set_radio(priv, preamble, 1);
1345
1346 /* Do the actual association */
cc026819 1347 ret = lbs_associate(priv, bss, sme);
e86dc1ca
KD		 1348
1349 done:
1350 if (bss)
1351 cfg80211_put_bss(bss);
1352 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1353 return ret;
1354}
1355
e86dc1ca
KD		 1356static int lbs_cfg_disconnect(struct wiphy *wiphy, struct net_device *dev,
1357 u16 reason_code)
1358{
1359 struct lbs_private *priv = wiphy_priv(wiphy);
1360 struct cmd_ds_802_11_deauthenticate cmd;
ff9fc791 1361
e86dc1ca 1362 lbs_deb_enter_args(LBS_DEB_CFG80211, "reason_code %d", reason_code);
ff9fc791 1363
e86dc1ca
KD		 1364 /* store for lbs_cfg_ret_disconnect() */
1365 priv->disassoc_reason = reason_code;
1366
1367 memset(&cmd, 0, sizeof(cmd));
1368 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1369 /* Mildly ugly to use a locally store my own BSSID ... */
1370 memcpy(cmd.macaddr, &priv->assoc_bss, ETH_ALEN);
1371 cmd.reasoncode = cpu_to_le16(reason_code);
1372
e4fe4eaf
KD		 1373 if (lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd))
1374 return -EFAULT;
1375
1376 cfg80211_disconnected(priv->dev,
1377 priv->disassoc_reason,
1378 NULL, 0,
1379 GFP_KERNEL);
1380 priv->connect_status = LBS_DISCONNECTED;
e86dc1ca
KD		 1381
1382 return 0;
1383}
1384
1385
1386static int lbs_cfg_set_default_key(struct wiphy *wiphy,
1387 struct net_device *netdev,
1388 u8 key_index)
1389{
1390 struct lbs_private *priv = wiphy_priv(wiphy);
1391
1392 lbs_deb_enter(LBS_DEB_CFG80211);
1393
1394 if (key_index != priv->wep_tx_key) {
1395 lbs_deb_assoc("set_default_key: to %d\n", key_index);
1396 priv->wep_tx_key = key_index;
1397 lbs_set_wep_keys(priv);
1398 }
1399
1400 return 0;
1401}
1402
1403
1404static int lbs_cfg_add_key(struct wiphy *wiphy, struct net_device *netdev,
1405 u8 idx, const u8 *mac_addr,
1406 struct key_params *params)
1407{
1408 struct lbs_private *priv = wiphy_priv(wiphy);
1409 u16 key_info;
1410 u16 key_type;
1411 int ret = 0;
1412
1413 lbs_deb_enter(LBS_DEB_CFG80211);
1414
1415 lbs_deb_assoc("add_key: cipher 0x%x, mac_addr %pM\n",
1416 params->cipher, mac_addr);
1417 lbs_deb_assoc("add_key: key index %d, key len %d\n",
1418 idx, params->key_len);
1419 if (params->key_len)
1420 lbs_deb_hex(LBS_DEB_CFG80211, "KEY",
1421 params->key, params->key_len);
1422
1423 lbs_deb_assoc("add_key: seq len %d\n", params->seq_len);
1424 if (params->seq_len)
1425 lbs_deb_hex(LBS_DEB_CFG80211, "SEQ",
1426 params->seq, params->seq_len);
1427
1428 switch (params->cipher) {
1429 case WLAN_CIPHER_SUITE_WEP40:
1430 case WLAN_CIPHER_SUITE_WEP104:
1431 /* actually compare if something has changed ... */
1432 if ((priv->wep_key_len[idx] != params->key_len) ||
1433 memcmp(priv->wep_key[idx],
1434 params->key, params->key_len) != 0) {
1435 priv->wep_key_len[idx] = params->key_len;
1436 memcpy(priv->wep_key[idx],
1437 params->key, params->key_len);
1438 lbs_set_wep_keys(priv);
1439 }
1440 break;
1441 case WLAN_CIPHER_SUITE_TKIP:
1442 case WLAN_CIPHER_SUITE_CCMP:
1443 key_info = KEY_INFO_WPA_ENABLED | ((idx == 0)
1444 ? KEY_INFO_WPA_UNICAST
1445 : KEY_INFO_WPA_MCAST);
1446 key_type = (params->cipher == WLAN_CIPHER_SUITE_TKIP)
1447 ? KEY_TYPE_ID_TKIP
1448 : KEY_TYPE_ID_AES;
1449 lbs_set_key_material(priv,
1450 key_type,
1451 key_info,
1452 params->key, params->key_len);
1453 break;
1454 default:
1455 lbs_pr_err("unhandled cipher 0x%x\n", params->cipher);
1456 ret = -ENOTSUPP;
1457 break;
1458 }
1459
1460 return ret;
1461}
1462
1463
1464static int lbs_cfg_del_key(struct wiphy *wiphy, struct net_device *netdev,
1465 u8 key_index, const u8 *mac_addr)
1466{
1467
1468 lbs_deb_enter(LBS_DEB_CFG80211);
1469
1470 lbs_deb_assoc("del_key: key_idx %d, mac_addr %pM\n",
1471 key_index, mac_addr);
1472
1473#ifdef TODO
1474 struct lbs_private *priv = wiphy_priv(wiphy);
1475 /*
1476 * I think can keep this a NO-OP, because:
1477
1478 * - we clear all keys whenever we do lbs_cfg_connect() anyway
1479 * - neither "iw" nor "wpa_supplicant" won't call this during
1480 * an ongoing connection
1481 * - TODO: but I have to check if this is still true when
1482 * I set the AP to periodic re-keying
1483 * - we've not kzallec() something when we've added a key at
1484 * lbs_cfg_connect() or lbs_cfg_add_key().
1485 *
1486 * This causes lbs_cfg_del_key() only called at disconnect time,
1487 * where we'd just waste time deleting a key that is not going
1488 * to be used anyway.
1489 */
1490 if (key_index < 3 && priv->wep_key_len[key_index]) {
1491 priv->wep_key_len[key_index] = 0;
1492 lbs_set_wep_keys(priv);
1493 }
1494#endif
1495
1496 return 0;
1497}
1498
1499
e86dc1ca
KD		 1500/***************************************************************************
1501 * Get station
1502 */
1503
e86dc1ca
KD		 1504static int lbs_cfg_get_station(struct wiphy *wiphy, struct net_device *dev,
1505 u8 *mac, struct station_info *sinfo)
1506{
1507 struct lbs_private *priv = wiphy_priv(wiphy);
1508 s8 signal, noise;
1509 int ret;
1510 size_t i;
1511
1512 lbs_deb_enter(LBS_DEB_CFG80211);
1513
1514 sinfo->filled |= STATION_INFO_TX_BYTES |
1515 STATION_INFO_TX_PACKETS |
1516 STATION_INFO_RX_BYTES |
1517 STATION_INFO_RX_PACKETS;
1518 sinfo->tx_bytes = priv->dev->stats.tx_bytes;
1519 sinfo->tx_packets = priv->dev->stats.tx_packets;
1520 sinfo->rx_bytes = priv->dev->stats.rx_bytes;
1521 sinfo->rx_packets = priv->dev->stats.rx_packets;
1522
1523 /* Get current RSSI */
9fb7663d 1524 ret = lbs_get_rssi(priv, &signal, &noise);
e86dc1ca
KD		 1525 if (ret == 0) {
1526 sinfo->signal = signal;
1527 sinfo->filled |= STATION_INFO_SIGNAL;
1528 }
1529
1530 /* Convert priv->cur_rate from hw_value to NL80211 value */
1531 for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
1532 if (priv->cur_rate == lbs_rates[i].hw_value) {
1533 sinfo->txrate.legacy = lbs_rates[i].bitrate;
1534 sinfo->filled |= STATION_INFO_TX_BITRATE;
1535 break;
1536 }
1537 }
1538
1539 return 0;
1540}
1541
1542
1543
1544
1545/***************************************************************************
1546 * "Site survey", here just current channel and noise level
1547 */
1548
1549static int lbs_get_survey(struct wiphy *wiphy, struct net_device *dev,
1550 int idx, struct survey_info *survey)
1551{
1552 struct lbs_private *priv = wiphy_priv(wiphy);
1553 s8 signal, noise;
1554 int ret;
1555
1556 if (idx != 0)
1557 ret = -ENOENT;
1558
1559 lbs_deb_enter(LBS_DEB_CFG80211);
1560
1561 survey->channel = ieee80211_get_channel(wiphy,
1562 ieee80211_channel_to_frequency(priv->channel));
1563
9fb7663d 1564 ret = lbs_get_rssi(priv, &signal, &noise);
e86dc1ca
KD		 1565 if (ret == 0) {
1566 survey->filled = SURVEY_INFO_NOISE_DBM;
1567 survey->noise = noise;
1568 }
1569
1570 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1571 return ret;
1572}
1573
1574
1575
1576
1577/***************************************************************************
1578 * Change interface
1579 */
1580
1581static int lbs_change_intf(struct wiphy *wiphy, struct net_device *dev,
1582 enum nl80211_iftype type, u32 *flags,
1583 struct vif_params *params)
1584{
1585 struct lbs_private *priv = wiphy_priv(wiphy);
1586 int ret = 0;
1587
1588 lbs_deb_enter(LBS_DEB_CFG80211);
1589
1590 switch (type) {
1591 case NL80211_IFTYPE_MONITOR:
a45b6f4f 1592 ret = lbs_set_monitor_mode(priv, 1);
e86dc1ca
KD		 1593 break;
1594 case NL80211_IFTYPE_STATION:
1595 if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
a45b6f4f 1596 ret = lbs_set_monitor_mode(priv, 0);
e86dc1ca
KD		 1597 if (!ret)
1598 ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 1);
1599 break;
1600 case NL80211_IFTYPE_ADHOC:
1601 if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
a45b6f4f 1602 ret = lbs_set_monitor_mode(priv, 0);
e86dc1ca
KD		 1603 if (!ret)
1604 ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 2);
1605 break;
1606 default:
1607 ret = -ENOTSUPP;
1608 }
1609
1610 if (!ret)
1611 priv->wdev->iftype = type;
1612
1613 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1614 return ret;
1615}
1616
1617
1618
1619/***************************************************************************
1620 * IBSS (Ad-Hoc)
1621 */
1622
1623/* The firmware needs the following bits masked out of the beacon-derived
1624 * capability field when associating/joining to a BSS:
1625 * 9 (QoS), 11 (APSD), 12 (unused), 14 (unused), 15 (unused)
1626 */
1627#define CAPINFO_MASK (~(0xda00))
1628
1629
1630static void lbs_join_post(struct lbs_private *priv,
1631 struct cfg80211_ibss_params *params,
1632 u8 *bssid, u16 capability)
1633{
1634 u8 fake_ie[2 + IEEE80211_MAX_SSID_LEN + /* ssid */
1635 2 + 4 + /* basic rates */
1636 2 + 1 + /* DS parameter */
1637 2 + 2 + /* atim */
1638 2 + 8]; /* extended rates */
1639 u8 *fake = fake_ie;
1640
1641 lbs_deb_enter(LBS_DEB_CFG80211);
1642
1643 /*
1644 * For cfg80211_inform_bss, we'll need a fake IE, as we can't get
1645 * the real IE from the firmware. So we fabricate a fake IE based on
1646 * what the firmware actually sends (sniffed with wireshark).
1647 */
1648 /* Fake SSID IE */
1649 *fake++ = WLAN_EID_SSID;
1650 *fake++ = params->ssid_len;
1651 memcpy(fake, params->ssid, params->ssid_len);
1652 fake += params->ssid_len;
1653 /* Fake supported basic rates IE */
1654 *fake++ = WLAN_EID_SUPP_RATES;
1655 *fake++ = 4;
1656 *fake++ = 0x82;
1657 *fake++ = 0x84;
1658 *fake++ = 0x8b;
1659 *fake++ = 0x96;
1660 /* Fake DS channel IE */
1661 *fake++ = WLAN_EID_DS_PARAMS;
1662 *fake++ = 1;
1663 *fake++ = params->channel->hw_value;
1664 /* Fake IBSS params IE */
1665 *fake++ = WLAN_EID_IBSS_PARAMS;
1666 *fake++ = 2;
1667 *fake++ = 0; /* ATIM=0 */
1668 *fake++ = 0;
1669 /* Fake extended rates IE, TODO: don't add this for 802.11b only,
1670 * but I don't know how this could be checked */
1671 *fake++ = WLAN_EID_EXT_SUPP_RATES;
1672 *fake++ = 8;
1673 *fake++ = 0x0c;
1674 *fake++ = 0x12;
1675 *fake++ = 0x18;
1676 *fake++ = 0x24;
1677 *fake++ = 0x30;
1678 *fake++ = 0x48;
1679 *fake++ = 0x60;
1680 *fake++ = 0x6c;
1681 lbs_deb_hex(LBS_DEB_CFG80211, "IE", fake_ie, fake - fake_ie);
1682
1683 cfg80211_inform_bss(priv->wdev->wiphy,
1684 params->channel,
1685 bssid,
1686 0,
1687 capability,
1688 params->beacon_interval,
1689 fake_ie, fake - fake_ie,
1690 0, GFP_KERNEL);
e4fe4eaf
KD		 1691
1692 memcpy(priv->wdev->ssid, params->ssid, params->ssid_len);
1693 priv->wdev->ssid_len = params->ssid_len;
1694
e86dc1ca
KD		 1695 cfg80211_ibss_joined(priv->dev, bssid, GFP_KERNEL);
1696
1697 /* TODO: consider doing this at MACREG_INT_CODE_LINK_SENSED time */
1698 priv->connect_status = LBS_CONNECTED;
1699 netif_carrier_on(priv->dev);
1700 if (!priv->tx_pending_len)
1701 netif_wake_queue(priv->dev);
1702
1703 lbs_deb_leave(LBS_DEB_CFG80211);
1704}
1705
1706static int lbs_ibss_join_existing(struct lbs_private *priv,
1707 struct cfg80211_ibss_params *params,
1708 struct cfg80211_bss *bss)
1709{
1710 const u8 *rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
1711 struct cmd_ds_802_11_ad_hoc_join cmd;
1712 u8 preamble = RADIO_PREAMBLE_SHORT;
1713 int ret = 0;
1714
1715 lbs_deb_enter(LBS_DEB_CFG80211);
1716
1717 /* TODO: set preamble based on scan result */
1718 ret = lbs_set_radio(priv, preamble, 1);
1719 if (ret)
1720 goto out;
1721
1722 /*
1723 * Example CMD_802_11_AD_HOC_JOIN command:
1724 *
1725 * command 2c 00 CMD_802_11_AD_HOC_JOIN
1726 * size 65 00
1727 * sequence xx xx
1728 * result 00 00
1729 * bssid 02 27 27 97 2f 96
1730 * ssid 49 42 53 53 00 00 00 00
1731 * 00 00 00 00 00 00 00 00
1732 * 00 00 00 00 00 00 00 00
1733 * 00 00 00 00 00 00 00 00
1734 * type 02 CMD_BSS_TYPE_IBSS
1735 * beacon period 64 00
1736 * dtim period 00
1737 * timestamp 00 00 00 00 00 00 00 00
1738 * localtime 00 00 00 00 00 00 00 00
1739 * IE DS 03
1740 * IE DS len 01
1741 * IE DS channel 01
1742 * reserveed 00 00 00 00
1743 * IE IBSS 06
1744 * IE IBSS len 02
1745 * IE IBSS atim 00 00
1746 * reserved 00 00 00 00
1747 * capability 02 00
1748 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c 00
1749 * fail timeout ff 00
1750 * probe delay 00 00
1751 */
1752 memset(&cmd, 0, sizeof(cmd));
1753 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1754
1755 memcpy(cmd.bss.bssid, bss->bssid, ETH_ALEN);
1756 memcpy(cmd.bss.ssid, params->ssid, params->ssid_len);
1757 cmd.bss.type = CMD_BSS_TYPE_IBSS;
1758 cmd.bss.beaconperiod = cpu_to_le16(params->beacon_interval);
1759 cmd.bss.ds.header.id = WLAN_EID_DS_PARAMS;
1760 cmd.bss.ds.header.len = 1;
1761 cmd.bss.ds.channel = params->channel->hw_value;
1762 cmd.bss.ibss.header.id = WLAN_EID_IBSS_PARAMS;
1763 cmd.bss.ibss.header.len = 2;
1764 cmd.bss.ibss.atimwindow = 0;
1765 cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
1766
1767 /* set rates to the intersection of our rates and the rates in the
1768 bss */
1769 if (!rates_eid) {
1770 lbs_add_rates(cmd.bss.rates);
1771 } else {
1772 int hw, i;
1773 u8 rates_max = rates_eid[1];
1774 u8 *rates = cmd.bss.rates;
1775 for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
1776 u8 hw_rate = lbs_rates[hw].bitrate / 5;
1777 for (i = 0; i < rates_max; i++) {
1778 if (hw_rate == (rates_eid[i+2] & 0x7f)) {
1779 u8 rate = rates_eid[i+2];
1780 if (rate == 0x02 || rate == 0x04 ||
1781 rate == 0x0b || rate == 0x16)
1782 rate |= 0x80;
1783 *rates++ = rate;
1784 }
1785 }
1786 }
1787 }
1788
1789 /* Only v8 and below support setting this */
1790 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
1791 cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
1792 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1793 }
1794 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd);
1795 if (ret)
1796 goto out;
1797
1798 /*
1799 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
1800 *
1801 * response 2c 80
1802 * size 09 00
1803 * sequence xx xx
1804 * result 00 00
1805 * reserved 00
1806 */
1807 lbs_join_post(priv, params, bss->bssid, bss->capability);
1808
1809 out:
1810 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1811 return ret;
1812}
1813
1814
1815
1816static int lbs_ibss_start_new(struct lbs_private *priv,
1817 struct cfg80211_ibss_params *params)
1818{
1819 struct cmd_ds_802_11_ad_hoc_start cmd;
1820 struct cmd_ds_802_11_ad_hoc_result *resp =
1821 (struct cmd_ds_802_11_ad_hoc_result *) &cmd;
1822 u8 preamble = RADIO_PREAMBLE_SHORT;
1823 int ret = 0;
1824 u16 capability;
1825
1826 lbs_deb_enter(LBS_DEB_CFG80211);
1827
1828 ret = lbs_set_radio(priv, preamble, 1);
1829 if (ret)
1830 goto out;
1831
1832 /*
1833 * Example CMD_802_11_AD_HOC_START command:
1834 *
1835 * command 2b 00 CMD_802_11_AD_HOC_START
1836 * size b1 00
1837 * sequence xx xx
1838 * result 00 00
1839 * ssid 54 45 53 54 00 00 00 00
1840 * 00 00 00 00 00 00 00 00
1841 * 00 00 00 00 00 00 00 00
1842 * 00 00 00 00 00 00 00 00
1843 * bss type 02
1844 * beacon period 64 00
1845 * dtim period 00
1846 * IE IBSS 06
1847 * IE IBSS len 02
1848 * IE IBSS atim 00 00
1849 * reserved 00 00 00 00
1850 * IE DS 03
1851 * IE DS len 01
1852 * IE DS channel 01
1853 * reserved 00 00 00 00
1854 * probe delay 00 00
1855 * capability 02 00
1856 * rates 82 84 8b 96 (basic rates with have bit 7 set)
1857 * 0c 12 18 24 30 48 60 6c
1858 * padding 100 bytes
1859 */
1860 memset(&cmd, 0, sizeof(cmd));
1861 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1862 memcpy(cmd.ssid, params->ssid, params->ssid_len);
1863 cmd.bsstype = CMD_BSS_TYPE_IBSS;
1864 cmd.beaconperiod = cpu_to_le16(params->beacon_interval);
1865 cmd.ibss.header.id = WLAN_EID_IBSS_PARAMS;
1866 cmd.ibss.header.len = 2;
1867 cmd.ibss.atimwindow = 0;
1868 cmd.ds.header.id = WLAN_EID_DS_PARAMS;
1869 cmd.ds.header.len = 1;
1870 cmd.ds.channel = params->channel->hw_value;
1871 /* Only v8 and below support setting probe delay */
1872 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8)
1873 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1874 /* TODO: mix in WLAN_CAPABILITY_PRIVACY */
1875 capability = WLAN_CAPABILITY_IBSS;
1876 cmd.capability = cpu_to_le16(capability);
1877 lbs_add_rates(cmd.rates);
1878
1879
1880 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd);
1881 if (ret)
1882 goto out;
1883
1884 /*
1885 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
1886 *
1887 * response 2b 80
1888 * size 14 00
1889 * sequence xx xx
1890 * result 00 00
1891 * reserved 00
1892 * bssid 02 2b 7b 0f 86 0e
1893 */
1894 lbs_join_post(priv, params, resp->bssid, capability);
1895
1896 out:
1897 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1898 return ret;
1899}
1900
1901
1902static int lbs_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1903 struct cfg80211_ibss_params *params)
1904{
1905 struct lbs_private *priv = wiphy_priv(wiphy);
1906 int ret = 0;
1907 struct cfg80211_bss *bss;
1908 DECLARE_SSID_BUF(ssid_buf);
1909
1910 lbs_deb_enter(LBS_DEB_CFG80211);
1911
1912 if (!params->channel) {
1913 ret = -ENOTSUPP;
1914 goto out;
1915 }
1916
1917 ret = lbs_set_channel(priv, params->channel->hw_value);
1918 if (ret)
ff9fc791
HS		 1919 goto out;
1920
e86dc1ca
KD		 1921 /* Search if someone is beaconing. This assumes that the
1922 * bss list is populated already */
1923 bss = cfg80211_get_bss(wiphy, params->channel, params->bssid,
1924 params->ssid, params->ssid_len,
1925 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
1926
1927 if (bss) {
1928 ret = lbs_ibss_join_existing(priv, params, bss);
1929 cfg80211_put_bss(bss);
1930 } else
1931 ret = lbs_ibss_start_new(priv, params);
1932
ff9fc791
HS		 1933
1934 out:
1935 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1936 return ret;
1937}
1938
1939
e86dc1ca
KD		 1940static int lbs_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1941{
1942 struct lbs_private *priv = wiphy_priv(wiphy);
1943 struct cmd_ds_802_11_ad_hoc_stop cmd;
1944 int ret = 0;
1945
1946 lbs_deb_enter(LBS_DEB_CFG80211);
1947
1948 memset(&cmd, 0, sizeof(cmd));
1949 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1950 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd);
1951
1952 /* TODO: consider doing this at MACREG_INT_CODE_ADHOC_BCN_LOST time */
1953 lbs_mac_event_disconnected(priv);
1954
1955 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1956 return ret;
1957}
1958
ff9fc791
HS		 1959
1960
e86dc1ca
KD		 1961
1962/***************************************************************************
1963 * Initialization
1964 */
1965
ff9fc791
HS		 1966static struct cfg80211_ops lbs_cfg80211_ops = {
1967 .set_channel = lbs_cfg_set_channel,
e86dc1ca
KD		 1968 .scan = lbs_cfg_scan,
1969 .connect = lbs_cfg_connect,
1970 .disconnect = lbs_cfg_disconnect,
1971 .add_key = lbs_cfg_add_key,
1972 .del_key = lbs_cfg_del_key,
1973 .set_default_key = lbs_cfg_set_default_key,
1974 .get_station = lbs_cfg_get_station,
1975 .dump_survey = lbs_get_survey,
1976 .change_virtual_intf = lbs_change_intf,
1977 .join_ibss = lbs_join_ibss,
1978 .leave_ibss = lbs_leave_ibss,
ff9fc791
HS		 1979};
1980
1981
1982/*
1983 * At this time lbs_private *priv doesn't even exist, so we just allocate
1984 * memory and don't initialize the wiphy further. This is postponed until we
1985 * can talk to the firmware and happens at registration time in
1986 * lbs_cfg_wiphy_register().
1987 */
1988struct wireless_dev *lbs_cfg_alloc(struct device *dev)
1989{
1990 int ret = 0;
1991 struct wireless_dev *wdev;
1992
1993 lbs_deb_enter(LBS_DEB_CFG80211);
1994
1995 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1996 if (!wdev) {
1997 dev_err(dev, "cannot allocate wireless device\n");
1998 return ERR_PTR(-ENOMEM);
1999 }
2000
2001 wdev->wiphy = wiphy_new(&lbs_cfg80211_ops, sizeof(struct lbs_private));
2002 if (!wdev->wiphy) {
2003 dev_err(dev, "cannot allocate wiphy\n");
2004 ret = -ENOMEM;
2005 goto err_wiphy_new;
2006 }
2007
2008 lbs_deb_leave(LBS_DEB_CFG80211);
2009 return wdev;
2010
2011 err_wiphy_new:
2012 kfree(wdev);
2013 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2014 return ERR_PTR(ret);
2015}
2016
2017
e86dc1ca
KD		 2018static void lbs_cfg_set_regulatory_hint(struct lbs_private *priv)
2019{
2020 struct region_code_mapping {
2021 const char *cn;
2022 int code;
2023 };
2024
2025 /* Section 5.17.2 */
2026 static struct region_code_mapping regmap[] = {
2027 {"US ", 0x10}, /* US FCC */
2028 {"CA ", 0x20}, /* Canada */
2029 {"EU ", 0x30}, /* ETSI */
2030 {"ES ", 0x31}, /* Spain */
2031 {"FR ", 0x32}, /* France */
2032 {"JP ", 0x40}, /* Japan */
2033 };
2034 size_t i;
2035
2036 lbs_deb_enter(LBS_DEB_CFG80211);
2037
2038 for (i = 0; i < ARRAY_SIZE(regmap); i++)
2039 if (regmap[i].code == priv->regioncode) {
2040 regulatory_hint(priv->wdev->wiphy, regmap[i].cn);
2041 break;
2042 }
2043
2044 lbs_deb_leave(LBS_DEB_CFG80211);
2045}
2046
2047
ff9fc791
HS		 2048/*
2049 * This function get's called after lbs_setup_firmware() determined the
2050 * firmware capabities. So we can setup the wiphy according to our
2051 * hardware/firmware.
2052 */
2053int lbs_cfg_register(struct lbs_private *priv)
2054{
2055 struct wireless_dev *wdev = priv->wdev;
2056 int ret;
2057
2058 lbs_deb_enter(LBS_DEB_CFG80211);
2059
2060 wdev->wiphy->max_scan_ssids = 1;
2061 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2062
e86dc1ca
KD		 2063 wdev->wiphy->interface_modes =
2064 BIT(NL80211_IFTYPE_STATION) |
2065 BIT(NL80211_IFTYPE_ADHOC);
2066 if (lbs_rtap_supported(priv))
2067 wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
ff9fc791 2068
ff9fc791
HS		 2069 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &lbs_band_2ghz;
2070
2071 /*
2072 * We could check priv->fwcapinfo && FW_CAPINFO_WPA, but I have
2073 * never seen a firmware without WPA
2074 */
2075 wdev->wiphy->cipher_suites = cipher_suites;
2076 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
1047d5ed 2077 wdev->wiphy->reg_notifier = lbs_reg_notifier;
ff9fc791
HS		 2078
2079 ret = wiphy_register(wdev->wiphy);
2080 if (ret < 0)
2081 lbs_pr_err("cannot register wiphy device\n");
2082
73714004
DM		 2083 priv->wiphy_registered = true;
2084
ff9fc791
HS		 2085 ret = register_netdev(priv->dev);
2086 if (ret)
2087 lbs_pr_err("cannot register network device\n");
2088
e86dc1ca
KD		 2089 INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
2090
2091 lbs_cfg_set_regulatory_hint(priv);
2092
ff9fc791
HS		 2093 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2094 return ret;
2095}
2096
1047d5ed
KD		 2097int lbs_reg_notifier(struct wiphy *wiphy,
2098 struct regulatory_request *request)
2099{
cc4b9d39
DW		 2100 struct lbs_private *priv = wiphy_priv(wiphy);
2101 int ret;
2102
1047d5ed
KD		 2103 lbs_deb_enter_args(LBS_DEB_CFG80211, "cfg80211 regulatory domain "
2104 "callback for domain %c%c\n", request->alpha2[0],
2105 request->alpha2[1]);
2106
cc4b9d39 2107 ret = lbs_set_11d_domain_info(priv, request, wiphy->bands);
1047d5ed
KD		 2108
2109 lbs_deb_leave(LBS_DEB_CFG80211);
cc4b9d39 2110 return ret;
1047d5ed 2111}
ff9fc791 2112
e86dc1ca
KD		 2113void lbs_scan_deinit(struct lbs_private *priv)
2114{
2115 lbs_deb_enter(LBS_DEB_CFG80211);
2116 cancel_delayed_work_sync(&priv->scan_work);
2117}
2118
2119
ff9fc791
HS		 2120void lbs_cfg_free(struct lbs_private *priv)
2121{
2122 struct wireless_dev *wdev = priv->wdev;
2123
2124 lbs_deb_enter(LBS_DEB_CFG80211);
2125
2126 if (!wdev)
2127 return;
2128
73714004 2129 if (priv->wiphy_registered)
ff9fc791 2130 wiphy_unregister(wdev->wiphy);
73714004
DM		 2131
2132 if (wdev->wiphy)
ff9fc791 2133 wiphy_free(wdev->wiphy);
73714004 2134
ff9fc791
HS		 2135 kfree(wdev);
2136}
Clone of davem's net-next-2.6 tree