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drivers/net/wireless/libertas/cfg.c: needs sched.h
[net-next-2.6.git] / drivers / net / wireless / libertas / cfg.c
CommitLineData
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
241a6a54
AM		 9#include <linux/sched.h>
10#include <linux/wait.h>
5a0e3ad6 11#include <linux/slab.h>
1047d5ed 12#include <linux/ieee80211.h>
ff9fc791 13#include <net/cfg80211.h>
e86dc1ca 14#include <asm/unaligned.h>
ff9fc791 15
e86dc1ca 16#include "decl.h"
ff9fc791
HS		 17#include "cfg.h"
18#include "cmd.h"
19
20
21#define CHAN2G(_channel, _freq, _flags) { \
22 .band = IEEE80211_BAND_2GHZ, \
23 .center_freq = (_freq), \
24 .hw_value = (_channel), \
25 .flags = (_flags), \
26 .max_antenna_gain = 0, \
27 .max_power = 30, \
28}
29
30static struct ieee80211_channel lbs_2ghz_channels[] = {
31 CHAN2G(1, 2412, 0),
32 CHAN2G(2, 2417, 0),
33 CHAN2G(3, 2422, 0),
34 CHAN2G(4, 2427, 0),
35 CHAN2G(5, 2432, 0),
36 CHAN2G(6, 2437, 0),
37 CHAN2G(7, 2442, 0),
38 CHAN2G(8, 2447, 0),
39 CHAN2G(9, 2452, 0),
40 CHAN2G(10, 2457, 0),
41 CHAN2G(11, 2462, 0),
42 CHAN2G(12, 2467, 0),
43 CHAN2G(13, 2472, 0),
44 CHAN2G(14, 2484, 0),
45};
46
e86dc1ca
KD		 47#define RATETAB_ENT(_rate, _hw_value, _flags) { \
48 .bitrate = (_rate), \
49 .hw_value = (_hw_value), \
50 .flags = (_flags), \
ff9fc791
HS		 51}
52
53
e86dc1ca 54/* Table 6 in section 3.2.1.1 */
ff9fc791 55static struct ieee80211_rate lbs_rates[] = {
e86dc1ca
KD		 56 RATETAB_ENT(10, 0, 0),
57 RATETAB_ENT(20, 1, 0),
58 RATETAB_ENT(55, 2, 0),
59 RATETAB_ENT(110, 3, 0),
60 RATETAB_ENT(60, 9, 0),
61 RATETAB_ENT(90, 6, 0),
62 RATETAB_ENT(120, 7, 0),
63 RATETAB_ENT(180, 8, 0),
64 RATETAB_ENT(240, 9, 0),
65 RATETAB_ENT(360, 10, 0),
66 RATETAB_ENT(480, 11, 0),
67 RATETAB_ENT(540, 12, 0),
ff9fc791
HS		 68};
69
70static struct ieee80211_supported_band lbs_band_2ghz = {
71 .channels = lbs_2ghz_channels,
72 .n_channels = ARRAY_SIZE(lbs_2ghz_channels),
73 .bitrates = lbs_rates,
74 .n_bitrates = ARRAY_SIZE(lbs_rates),
75};
76
77
78static const u32 cipher_suites[] = {
79 WLAN_CIPHER_SUITE_WEP40,
80 WLAN_CIPHER_SUITE_WEP104,
81 WLAN_CIPHER_SUITE_TKIP,
82 WLAN_CIPHER_SUITE_CCMP,
83};
84
e86dc1ca
KD		 85/* Time to stay on the channel */
86#define LBS_DWELL_PASSIVE 100
87#define LBS_DWELL_ACTIVE 40
ff9fc791
HS		 88
89
e86dc1ca
KD		 90/***************************************************************************
91 * Misc utility functions
92 *
93 * TLVs are Marvell specific. They are very similar to IEs, they have the
94 * same structure: type, length, data*. The only difference: for IEs, the
95 * type and length are u8, but for TLVs they're __le16.
96 */
97
98/*
99 * Convert NL80211's auth_type to the one from Libertas, see chapter 5.9.1
100 * in the firmware spec
101 */
102static u8 lbs_auth_to_authtype(enum nl80211_auth_type auth_type)
103{
104 int ret = -ENOTSUPP;
105
106 switch (auth_type) {
107 case NL80211_AUTHTYPE_OPEN_SYSTEM:
108 case NL80211_AUTHTYPE_SHARED_KEY:
109 ret = auth_type;
110 break;
111 case NL80211_AUTHTYPE_AUTOMATIC:
112 ret = NL80211_AUTHTYPE_OPEN_SYSTEM;
113 break;
114 case NL80211_AUTHTYPE_NETWORK_EAP:
115 ret = 0x80;
116 break;
117 default:
118 /* silence compiler */
119 break;
120 }
121 return ret;
122}
123
124
125/* Various firmware commands need the list of supported rates, but with
126 the hight-bit set for basic rates */
127static int lbs_add_rates(u8 *rates)
128{
129 size_t i;
130
131 for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
132 u8 rate = lbs_rates[i].bitrate / 5;
133 if (rate == 0x02 || rate == 0x04 ||
134 rate == 0x0b || rate == 0x16)
135 rate |= 0x80;
136 rates[i] = rate;
137 }
138 return ARRAY_SIZE(lbs_rates);
139}
140
141
142/***************************************************************************
143 * TLV utility functions
144 *
145 * TLVs are Marvell specific. They are very similar to IEs, they have the
146 * same structure: type, length, data*. The only difference: for IEs, the
147 * type and length are u8, but for TLVs they're __le16.
148 */
149
150
151/*
152 * Add ssid TLV
153 */
154#define LBS_MAX_SSID_TLV_SIZE \
155 (sizeof(struct mrvl_ie_header) \
156 + IEEE80211_MAX_SSID_LEN)
157
158static int lbs_add_ssid_tlv(u8 *tlv, const u8 *ssid, int ssid_len)
159{
160 struct mrvl_ie_ssid_param_set *ssid_tlv = (void *)tlv;
161
162 /*
163 * TLV-ID SSID 00 00
164 * length 06 00
165 * ssid 4d 4e 54 45 53 54
166 */
167 ssid_tlv->header.type = cpu_to_le16(TLV_TYPE_SSID);
168 ssid_tlv->header.len = cpu_to_le16(ssid_len);
169 memcpy(ssid_tlv->ssid, ssid, ssid_len);
170 return sizeof(ssid_tlv->header) + ssid_len;
171}
172
173
174/*
175 * Add channel list TLV (section 8.4.2)
176 *
177 * Actual channel data comes from priv->wdev->wiphy->channels.
178 */
179#define LBS_MAX_CHANNEL_LIST_TLV_SIZE \
180 (sizeof(struct mrvl_ie_header) \
181 + (LBS_SCAN_BEFORE_NAP * sizeof(struct chanscanparamset)))
182
183static int lbs_add_channel_list_tlv(struct lbs_private *priv, u8 *tlv,
184 int last_channel, int active_scan)
185{
186 int chanscanparamsize = sizeof(struct chanscanparamset) *
187 (last_channel - priv->scan_channel);
188
189 struct mrvl_ie_header *header = (void *) tlv;
190
191 /*
192 * TLV-ID CHANLIST 01 01
193 * length 0e 00
194 * channel 00 01 00 00 00 64 00
195 * radio type 00
196 * channel 01
197 * scan type 00
198 * min scan time 00 00
199 * max scan time 64 00
200 * channel 2 00 02 00 00 00 64 00
201 *
202 */
203
204 header->type = cpu_to_le16(TLV_TYPE_CHANLIST);
205 header->len = cpu_to_le16(chanscanparamsize);
206 tlv += sizeof(struct mrvl_ie_header);
207
208 /* lbs_deb_scan("scan: channels %d to %d\n", priv->scan_channel,
209 last_channel); */
210 memset(tlv, 0, chanscanparamsize);
211
212 while (priv->scan_channel < last_channel) {
213 struct chanscanparamset *param = (void *) tlv;
214
215 param->radiotype = CMD_SCAN_RADIO_TYPE_BG;
216 param->channumber =
217 priv->scan_req->channels[priv->scan_channel]->hw_value;
218 if (active_scan) {
219 param->maxscantime = cpu_to_le16(LBS_DWELL_ACTIVE);
220 } else {
221 param->chanscanmode.passivescan = 1;
222 param->maxscantime = cpu_to_le16(LBS_DWELL_PASSIVE);
223 }
224 tlv += sizeof(struct chanscanparamset);
225 priv->scan_channel++;
226 }
227 return sizeof(struct mrvl_ie_header) + chanscanparamsize;
228}
229
230
231/*
232 * Add rates TLV
233 *
234 * The rates are in lbs_bg_rates[], but for the 802.11b
235 * rates the high bit is set. We add this TLV only because
236 * there's a firmware which otherwise doesn't report all
237 * APs in range.
238 */
239#define LBS_MAX_RATES_TLV_SIZE \
240 (sizeof(struct mrvl_ie_header) \
241 + (ARRAY_SIZE(lbs_rates)))
242
243/* Adds a TLV with all rates the hardware supports */
244static int lbs_add_supported_rates_tlv(u8 *tlv)
245{
246 size_t i;
247 struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
248
249 /*
250 * TLV-ID RATES 01 00
251 * length 0e 00
252 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c
253 */
254 rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
255 tlv += sizeof(rate_tlv->header);
256 i = lbs_add_rates(tlv);
257 tlv += i;
258 rate_tlv->header.len = cpu_to_le16(i);
259 return sizeof(rate_tlv->header) + i;
260}
261
19757539
DW		 262/* Add common rates from a TLV and return the new end of the TLV */
263static u8 *
264add_ie_rates(u8 *tlv, const u8 *ie, int *nrates)
265{
266 int hw, ap, ap_max = ie[1];
267 u8 hw_rate;
268
269 /* Advance past IE header */
270 ie += 2;
271
272 lbs_deb_hex(LBS_DEB_ASSOC, "AP IE Rates", (u8 *) ie, ap_max);
273
274 for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
275 hw_rate = lbs_rates[hw].bitrate / 5;
276 for (ap = 0; ap < ap_max; ap++) {
277 if (hw_rate == (ie[ap] & 0x7f)) {
278 *tlv++ = ie[ap];
279 *nrates = *nrates + 1;
280 }
281 }
282 }
283 return tlv;
284}
e86dc1ca
KD		 285
286/*
287 * Adds a TLV with all rates the hardware *and* BSS supports.
288 */
289static int lbs_add_common_rates_tlv(u8 *tlv, struct cfg80211_bss *bss)
290{
291 struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
19757539
DW		 292 const u8 *rates_eid, *ext_rates_eid;
293 int n = 0;
294
295 rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
296 ext_rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_EXT_SUPP_RATES);
e86dc1ca
KD		 297
298 /*
299 * 01 00 TLV_TYPE_RATES
300 * 04 00 len
301 * 82 84 8b 96 rates
302 */
303 rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
304 tlv += sizeof(rate_tlv->header);
305
19757539
DW		 306 /* Add basic rates */
307 if (rates_eid) {
308 tlv = add_ie_rates(tlv, rates_eid, &n);
309
310 /* Add extended rates, if any */
311 if (ext_rates_eid)
312 tlv = add_ie_rates(tlv, ext_rates_eid, &n);
313 } else {
314 lbs_deb_assoc("assoc: bss had no basic rate IE\n");
e86dc1ca
KD		 315 /* Fallback: add basic 802.11b rates */
316 *tlv++ = 0x82;
317 *tlv++ = 0x84;
318 *tlv++ = 0x8b;
319 *tlv++ = 0x96;
320 n = 4;
e86dc1ca
KD		 321 }
322
323 rate_tlv->header.len = cpu_to_le16(n);
324 return sizeof(rate_tlv->header) + n;
325}
326
327
328/*
329 * Add auth type TLV.
330 *
331 * This is only needed for newer firmware (V9 and up).
332 */
333#define LBS_MAX_AUTH_TYPE_TLV_SIZE \
334 sizeof(struct mrvl_ie_auth_type)
335
336static int lbs_add_auth_type_tlv(u8 *tlv, enum nl80211_auth_type auth_type)
337{
338 struct mrvl_ie_auth_type *auth = (void *) tlv;
339
340 /*
341 * 1f 01 TLV_TYPE_AUTH_TYPE
342 * 01 00 len
343 * 01 auth type
344 */
345 auth->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
346 auth->header.len = cpu_to_le16(sizeof(*auth)-sizeof(auth->header));
347 auth->auth = cpu_to_le16(lbs_auth_to_authtype(auth_type));
348 return sizeof(*auth);
349}
350
351
352/*
353 * Add channel (phy ds) TLV
354 */
355#define LBS_MAX_CHANNEL_TLV_SIZE \
356 sizeof(struct mrvl_ie_header)
357
358static int lbs_add_channel_tlv(u8 *tlv, u8 channel)
359{
360 struct mrvl_ie_ds_param_set *ds = (void *) tlv;
361
362 /*
363 * 03 00 TLV_TYPE_PHY_DS
364 * 01 00 len
365 * 06 channel
366 */
367 ds->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
368 ds->header.len = cpu_to_le16(sizeof(*ds)-sizeof(ds->header));
369 ds->channel = channel;
370 return sizeof(*ds);
371}
372
373
374/*
375 * Add (empty) CF param TLV of the form:
376 */
377#define LBS_MAX_CF_PARAM_TLV_SIZE \
378 sizeof(struct mrvl_ie_header)
379
380static int lbs_add_cf_param_tlv(u8 *tlv)
381{
382 struct mrvl_ie_cf_param_set *cf = (void *)tlv;
383
384 /*
385 * 04 00 TLV_TYPE_CF
386 * 06 00 len
387 * 00 cfpcnt
388 * 00 cfpperiod
389 * 00 00 cfpmaxduration
390 * 00 00 cfpdurationremaining
391 */
392 cf->header.type = cpu_to_le16(TLV_TYPE_CF);
393 cf->header.len = cpu_to_le16(sizeof(*cf)-sizeof(cf->header));
394 return sizeof(*cf);
395}
396
397/*
398 * Add WPA TLV
399 */
400#define LBS_MAX_WPA_TLV_SIZE \
401 (sizeof(struct mrvl_ie_header) \
402 + 128 /* TODO: I guessed the size */)
403
404static int lbs_add_wpa_tlv(u8 *tlv, const u8 *ie, u8 ie_len)
405{
406 size_t tlv_len;
407
408 /*
409 * We need just convert an IE to an TLV. IEs use u8 for the header,
410 * u8 type
411 * u8 len
412 * u8[] data
413 * but TLVs use __le16 instead:
414 * __le16 type
415 * __le16 len
416 * u8[] data
417 */
418 *tlv++ = *ie++;
419 *tlv++ = 0;
420 tlv_len = *tlv++ = *ie++;
421 *tlv++ = 0;
422 while (tlv_len--)
423 *tlv++ = *ie++;
424 /* the TLV is two bytes larger than the IE */
425 return ie_len + 2;
426}
427
428/***************************************************************************
429 * Set Channel
430 */
431
ff9fc791 432static int lbs_cfg_set_channel(struct wiphy *wiphy,
f444de05 433 struct net_device *netdev,
e86dc1ca 434 struct ieee80211_channel *channel,
ff9fc791
HS		 435 enum nl80211_channel_type channel_type)
436{
437 struct lbs_private *priv = wiphy_priv(wiphy);
e86dc1ca
KD		 438 int ret = -ENOTSUPP;
439
440 lbs_deb_enter_args(LBS_DEB_CFG80211, "freq %d, type %d",
441 channel->center_freq, channel_type);
442
443 if (channel_type != NL80211_CHAN_NO_HT)
444 goto out;
445
446 ret = lbs_set_channel(priv, channel->hw_value);
447
448 out:
449 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
450 return ret;
451}
452
453
454
455/***************************************************************************
456 * Scanning
457 */
458
459/*
460 * When scanning, the firmware doesn't send a nul packet with the power-safe
461 * bit to the AP. So we cannot stay away from our current channel too long,
462 * otherwise we loose data. So take a "nap" while scanning every other
463 * while.
464 */
465#define LBS_SCAN_BEFORE_NAP 4
466
467
468/*
469 * When the firmware reports back a scan-result, it gives us an "u8 rssi",
470 * which isn't really an RSSI, as it becomes larger when moving away from
471 * the AP. Anyway, we need to convert that into mBm.
472 */
473#define LBS_SCAN_RSSI_TO_MBM(rssi) \
474 ((-(int)rssi + 3)*100)
475
476static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy,
477 struct cmd_header *resp)
478{
479 struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp;
480 int bsssize;
481 const u8 *pos;
482 u16 nr_sets;
483 const u8 *tsfdesc;
484 int tsfsize;
485 int i;
486 int ret = -EILSEQ;
487
488 lbs_deb_enter(LBS_DEB_CFG80211);
489
490 bsssize = get_unaligned_le16(&scanresp->bssdescriptsize);
aebb628f
DW		 491 nr_sets = le16_to_cpu(scanresp->nr_sets);
492
493 lbs_deb_scan("scan response: %d BSSs (%d bytes); resp size %d bytes\n",
494 nr_sets, bsssize, le16_to_cpu(resp->size));
495
496 if (nr_sets == 0) {
497 ret = 0;
498 goto done;
499 }
e86dc1ca
KD		 500
501 /*
502 * The general layout of the scan response is described in chapter
503 * 5.7.1. Basically we have a common part, then any number of BSS
504 * descriptor sections. Finally we have section with the same number
505 * of TSFs.
506 *
507 * cmd_ds_802_11_scan_rsp
508 * cmd_header
509 * pos_size
510 * nr_sets
511 * bssdesc 1
512 * bssid
513 * rssi
514 * timestamp
515 * intvl
516 * capa
517 * IEs
518 * bssdesc 2
519 * bssdesc n
520 * MrvlIEtypes_TsfFimestamp_t
521 * TSF for BSS 1
522 * TSF for BSS 2
523 * TSF for BSS n
524 */
525
526 pos = scanresp->bssdesc_and_tlvbuffer;
527
528 tsfdesc = pos + bsssize;
529 tsfsize = 4 + 8 * scanresp->nr_sets;
530
531 /* Validity check: we expect a Marvell-Local TLV */
532 i = get_unaligned_le16(tsfdesc);
533 tsfdesc += 2;
534 if (i != TLV_TYPE_TSFTIMESTAMP)
535 goto done;
536 /* Validity check: the TLV holds TSF values with 8 bytes each, so
537 * the size in the TLV must match the nr_sets value */
538 i = get_unaligned_le16(tsfdesc);
539 tsfdesc += 2;
540 if (i / 8 != scanresp->nr_sets)
541 goto done;
542
543 for (i = 0; i < scanresp->nr_sets; i++) {
544 const u8 *bssid;
545 const u8 *ie;
546 int left;
547 int ielen;
548 int rssi;
549 u16 intvl;
550 u16 capa;
551 int chan_no = -1;
552 const u8 *ssid = NULL;
553 u8 ssid_len = 0;
554 DECLARE_SSID_BUF(ssid_buf);
555
556 int len = get_unaligned_le16(pos);
557 pos += 2;
558
559 /* BSSID */
560 bssid = pos;
561 pos += ETH_ALEN;
562 /* RSSI */
563 rssi = *pos++;
564 /* Packet time stamp */
565 pos += 8;
566 /* Beacon interval */
567 intvl = get_unaligned_le16(pos);
568 pos += 2;
569 /* Capabilities */
570 capa = get_unaligned_le16(pos);
571 pos += 2;
572
573 /* To find out the channel, we must parse the IEs */
574 ie = pos;
575 /* 6+1+8+2+2: size of BSSID, RSSI, time stamp, beacon
576 interval, capabilities */
577 ielen = left = len - (6 + 1 + 8 + 2 + 2);
578 while (left >= 2) {
579 u8 id, elen;
580 id = *pos++;
581 elen = *pos++;
582 left -= 2;
583 if (elen > left || elen == 0)
584 goto done;
585 if (id == WLAN_EID_DS_PARAMS)
586 chan_no = *pos;
587 if (id == WLAN_EID_SSID) {
588 ssid = pos;
589 ssid_len = elen;
590 }
591 left -= elen;
592 pos += elen;
593 }
594
595 /* No channel, no luck */
596 if (chan_no != -1) {
597 struct wiphy *wiphy = priv->wdev->wiphy;
598 int freq = ieee80211_channel_to_frequency(chan_no);
599 struct ieee80211_channel *channel =
600 ieee80211_get_channel(wiphy, freq);
601
602 lbs_deb_scan("scan: %pM, capa %04x, chan %2d, %s, "
603 "%d dBm\n",
604 bssid, capa, chan_no,
605 print_ssid(ssid_buf, ssid, ssid_len),
606 LBS_SCAN_RSSI_TO_MBM(rssi)/100);
607
608 if (channel ||
609 !(channel->flags & IEEE80211_CHAN_DISABLED))
610 cfg80211_inform_bss(wiphy, channel,
611 bssid, le64_to_cpu(*(__le64 *)tsfdesc),
612 capa, intvl, ie, ielen,
613 LBS_SCAN_RSSI_TO_MBM(rssi),
614 GFP_KERNEL);
615 }
616 tsfdesc += 8;
617 }
618 ret = 0;
619
620 done:
621 lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
622 return ret;
623}
624
625
626/*
627 * Our scan command contains a TLV, consting of a SSID TLV, a channel list
628 * TLV and a rates TLV. Determine the maximum size of them:
629 */
630#define LBS_SCAN_MAX_CMD_SIZE \
631 (sizeof(struct cmd_ds_802_11_scan) \
632 + LBS_MAX_SSID_TLV_SIZE \
633 + LBS_MAX_CHANNEL_LIST_TLV_SIZE \
634 + LBS_MAX_RATES_TLV_SIZE)
635
636/*
637 * Assumes priv->scan_req is initialized and valid
638 * Assumes priv->scan_channel is initialized
639 */
640static void lbs_scan_worker(struct work_struct *work)
641{
642 struct lbs_private *priv =
643 container_of(work, struct lbs_private, scan_work.work);
644 struct cmd_ds_802_11_scan *scan_cmd;
645 u8 *tlv; /* pointer into our current, growing TLV storage area */
646 int last_channel;
647 int running, carrier;
648
649 lbs_deb_enter(LBS_DEB_SCAN);
650
651 scan_cmd = kzalloc(LBS_SCAN_MAX_CMD_SIZE, GFP_KERNEL);
652 if (scan_cmd == NULL)
653 goto out_no_scan_cmd;
654
655 /* prepare fixed part of scan command */
656 scan_cmd->bsstype = CMD_BSS_TYPE_ANY;
657
658 /* stop network while we're away from our main channel */
659 running = !netif_queue_stopped(priv->dev);
660 carrier = netif_carrier_ok(priv->dev);
661 if (running)
662 netif_stop_queue(priv->dev);
663 if (carrier)
664 netif_carrier_off(priv->dev);
665
666 /* prepare fixed part of scan command */
667 tlv = scan_cmd->tlvbuffer;
668
669 /* add SSID TLV */
670 if (priv->scan_req->n_ssids)
671 tlv += lbs_add_ssid_tlv(tlv,
672 priv->scan_req->ssids[0].ssid,
673 priv->scan_req->ssids[0].ssid_len);
674
675 /* add channel TLVs */
676 last_channel = priv->scan_channel + LBS_SCAN_BEFORE_NAP;
677 if (last_channel > priv->scan_req->n_channels)
678 last_channel = priv->scan_req->n_channels;
679 tlv += lbs_add_channel_list_tlv(priv, tlv, last_channel,
680 priv->scan_req->n_ssids);
681
682 /* add rates TLV */
683 tlv += lbs_add_supported_rates_tlv(tlv);
684
685 if (priv->scan_channel < priv->scan_req->n_channels) {
686 cancel_delayed_work(&priv->scan_work);
687 queue_delayed_work(priv->work_thread, &priv->scan_work,
688 msecs_to_jiffies(300));
689 }
690
691 /* This is the final data we are about to send */
692 scan_cmd->hdr.size = cpu_to_le16(tlv - (u8 *)scan_cmd);
693 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_CMD", (void *)scan_cmd,
694 sizeof(*scan_cmd));
695 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TLV", scan_cmd->tlvbuffer,
696 tlv - scan_cmd->tlvbuffer);
697
698 __lbs_cmd(priv, CMD_802_11_SCAN, &scan_cmd->hdr,
699 le16_to_cpu(scan_cmd->hdr.size),
700 lbs_ret_scan, 0);
701
702 if (priv->scan_channel >= priv->scan_req->n_channels) {
703 /* Mark scan done */
cc026819
DW		 704 if (priv->internal_scan)
705 kfree(priv->scan_req);
706 else
707 cfg80211_scan_done(priv->scan_req, false);
708
e86dc1ca 709 priv->scan_req = NULL;
cc026819 710 priv->last_scan = jiffies;
e86dc1ca
KD		 711 }
712
713 /* Restart network */
714 if (carrier)
715 netif_carrier_on(priv->dev);
716 if (running && !priv->tx_pending_len)
717 netif_wake_queue(priv->dev);
718
719 kfree(scan_cmd);
720
cc026819
DW		 721 /* Wake up anything waiting on scan completion */
722 if (priv->scan_req == NULL) {
723 lbs_deb_scan("scan: waking up waiters\n");
724 wake_up_all(&priv->scan_q);
725 }
726
e86dc1ca
KD		 727 out_no_scan_cmd:
728 lbs_deb_leave(LBS_DEB_SCAN);
729}
730
cc026819
DW		 731static void _internal_start_scan(struct lbs_private *priv, bool internal,
732 struct cfg80211_scan_request *request)
733{
734 lbs_deb_enter(LBS_DEB_CFG80211);
735
736 lbs_deb_scan("scan: ssids %d, channels %d, ie_len %zd\n",
737 request->n_ssids, request->n_channels, request->ie_len);
738
739 priv->scan_channel = 0;
740 queue_delayed_work(priv->work_thread, &priv->scan_work,
741 msecs_to_jiffies(50));
742
743 priv->scan_req = request;
744 priv->internal_scan = internal;
745
746 lbs_deb_leave(LBS_DEB_CFG80211);
747}
e86dc1ca
KD		 748
749static int lbs_cfg_scan(struct wiphy *wiphy,
750 struct net_device *dev,
751 struct cfg80211_scan_request *request)
752{
753 struct lbs_private *priv = wiphy_priv(wiphy);
754 int ret = 0;
755
756 lbs_deb_enter(LBS_DEB_CFG80211);
757
758 if (priv->scan_req || delayed_work_pending(&priv->scan_work)) {
759 /* old scan request not yet processed */
760 ret = -EAGAIN;
761 goto out;
762 }
763
cc026819 764 _internal_start_scan(priv, false, request);
e86dc1ca
KD		 765
766 if (priv->surpriseremoved)
767 ret = -EIO;
768
e86dc1ca
KD		 769 out:
770 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
771 return ret;
772}
773
774
775
776
777/***************************************************************************
778 * Events
779 */
780
781void lbs_send_disconnect_notification(struct lbs_private *priv)
782{
783 lbs_deb_enter(LBS_DEB_CFG80211);
784
785 cfg80211_disconnected(priv->dev,
786 0,
787 NULL, 0,
788 GFP_KERNEL);
789
790 lbs_deb_leave(LBS_DEB_CFG80211);
791}
792
793void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event)
794{
795 lbs_deb_enter(LBS_DEB_CFG80211);
796
797 cfg80211_michael_mic_failure(priv->dev,
798 priv->assoc_bss,
799 event == MACREG_INT_CODE_MIC_ERR_MULTICAST ?
800 NL80211_KEYTYPE_GROUP :
801 NL80211_KEYTYPE_PAIRWISE,
802 -1,
803 NULL,
804 GFP_KERNEL);
805
806 lbs_deb_leave(LBS_DEB_CFG80211);
807}
808
809
810
811
812/***************************************************************************
813 * Connect/disconnect
814 */
815
816
817/*
818 * This removes all WEP keys
819 */
820static int lbs_remove_wep_keys(struct lbs_private *priv)
821{
822 struct cmd_ds_802_11_set_wep cmd;
823 int ret;
824
825 lbs_deb_enter(LBS_DEB_CFG80211);
826
827 memset(&cmd, 0, sizeof(cmd));
828 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
829 cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
830 cmd.action = cpu_to_le16(CMD_ACT_REMOVE);
831
832 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
833
834 lbs_deb_leave(LBS_DEB_CFG80211);
835 return ret;
836}
837
838/*
839 * Set WEP keys
840 */
841static int lbs_set_wep_keys(struct lbs_private *priv)
842{
843 struct cmd_ds_802_11_set_wep cmd;
844 int i;
845 int ret;
846
847 lbs_deb_enter(LBS_DEB_CFG80211);
848
849 /*
850 * command 13 00
851 * size 50 00
852 * sequence xx xx
853 * result 00 00
854 * action 02 00 ACT_ADD
855 * transmit key 00 00
856 * type for key 1 01 WEP40
857 * type for key 2 00
858 * type for key 3 00
859 * type for key 4 00
860 * key 1 39 39 39 39 39 00 00 00
861 * 00 00 00 00 00 00 00 00
862 * key 2 00 00 00 00 00 00 00 00
863 * 00 00 00 00 00 00 00 00
864 * key 3 00 00 00 00 00 00 00 00
865 * 00 00 00 00 00 00 00 00
866 * key 4 00 00 00 00 00 00 00 00
867 */
868 if (priv->wep_key_len[0] || priv->wep_key_len[1] ||
869 priv->wep_key_len[2] || priv->wep_key_len[3]) {
870 /* Only set wep keys if we have at least one of them */
871 memset(&cmd, 0, sizeof(cmd));
872 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
873 cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
874 cmd.action = cpu_to_le16(CMD_ACT_ADD);
875
876 for (i = 0; i < 4; i++) {
877 switch (priv->wep_key_len[i]) {
878 case WLAN_KEY_LEN_WEP40:
879 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
880 break;
881 case WLAN_KEY_LEN_WEP104:
882 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
883 break;
884 default:
885 cmd.keytype[i] = 0;
886 break;
887 }
888 memcpy(cmd.keymaterial[i], priv->wep_key[i],
889 priv->wep_key_len[i]);
890 }
891
892 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
893 } else {
894 /* Otherwise remove all wep keys */
895 ret = lbs_remove_wep_keys(priv);
896 }
897
898 lbs_deb_leave(LBS_DEB_CFG80211);
899 return ret;
900}
901
902
903/*
904 * Enable/Disable RSN status
905 */
906static int lbs_enable_rsn(struct lbs_private *priv, int enable)
907{
908 struct cmd_ds_802_11_enable_rsn cmd;
909 int ret;
910
911 lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", enable);
912
913 /*
914 * cmd 2f 00
915 * size 0c 00
916 * sequence xx xx
917 * result 00 00
918 * action 01 00 ACT_SET
919 * enable 01 00
920 */
921 memset(&cmd, 0, sizeof(cmd));
922 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
923 cmd.action = cpu_to_le16(CMD_ACT_SET);
924 cmd.enable = cpu_to_le16(enable);
925
926 ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
927
928 lbs_deb_leave(LBS_DEB_CFG80211);
929 return ret;
930}
931
932
933/*
934 * Set WPA/WPA key material
935 */
936
937/* like "struct cmd_ds_802_11_key_material", but with cmd_header. Once we
938 * get rid of WEXT, this should go into host.h */
939
940struct cmd_key_material {
941 struct cmd_header hdr;
942
943 __le16 action;
944 struct MrvlIEtype_keyParamSet param;
beabe914 945} __packed;
e86dc1ca
KD		 946
947static int lbs_set_key_material(struct lbs_private *priv,
948 int key_type,
949 int key_info,
950 u8 *key, u16 key_len)
951{
952 struct cmd_key_material cmd;
953 int ret;
954
955 lbs_deb_enter(LBS_DEB_CFG80211);
956
957 /*
958 * Example for WPA (TKIP):
959 *
960 * cmd 5e 00
961 * size 34 00
962 * sequence xx xx
963 * result 00 00
964 * action 01 00
965 * TLV type 00 01 key param
966 * length 00 26
967 * key type 01 00 TKIP
968 * key info 06 00 UNICAST | ENABLED
969 * key len 20 00
970 * key 32 bytes
971 */
972 memset(&cmd, 0, sizeof(cmd));
973 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
974 cmd.action = cpu_to_le16(CMD_ACT_SET);
975 cmd.param.type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
976 cmd.param.length = cpu_to_le16(sizeof(cmd.param) - 4);
977 cmd.param.keytypeid = cpu_to_le16(key_type);
978 cmd.param.keyinfo = cpu_to_le16(key_info);
979 cmd.param.keylen = cpu_to_le16(key_len);
980 if (key && key_len)
981 memcpy(cmd.param.key, key, key_len);
982
983 ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
984
985 lbs_deb_leave(LBS_DEB_CFG80211);
986 return ret;
987}
988
989
990/*
991 * Sets the auth type (open, shared, etc) in the firmware. That
992 * we use CMD_802_11_AUTHENTICATE is misleading, this firmware
993 * command doesn't send an authentication frame at all, it just
994 * stores the auth_type.
995 */
996static int lbs_set_authtype(struct lbs_private *priv,
997 struct cfg80211_connect_params *sme)
998{
999 struct cmd_ds_802_11_authenticate cmd;
1000 int ret;
1001
1002 lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", sme->auth_type);
1003
1004 /*
1005 * cmd 11 00
1006 * size 19 00
1007 * sequence xx xx
1008 * result 00 00
1009 * BSS id 00 13 19 80 da 30
1010 * auth type 00
1011 * reserved 00 00 00 00 00 00 00 00 00 00
1012 */
1013 memset(&cmd, 0, sizeof(cmd));
1014 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1015 if (sme->bssid)
1016 memcpy(cmd.bssid, sme->bssid, ETH_ALEN);
1017 /* convert auth_type */
1018 ret = lbs_auth_to_authtype(sme->auth_type);
1019 if (ret < 0)
1020 goto done;
1021
1022 cmd.authtype = ret;
1023 ret = lbs_cmd_with_response(priv, CMD_802_11_AUTHENTICATE, &cmd);
1024
1025 done:
1026 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1027 return ret;
1028}
1029
1030
1031/*
1032 * Create association request
1033 */
1034#define LBS_ASSOC_MAX_CMD_SIZE \
1035 (sizeof(struct cmd_ds_802_11_associate) \
1036 - 512 /* cmd_ds_802_11_associate.iebuf */ \
1037 + LBS_MAX_SSID_TLV_SIZE \
1038 + LBS_MAX_CHANNEL_TLV_SIZE \
1039 + LBS_MAX_CF_PARAM_TLV_SIZE \
1040 + LBS_MAX_AUTH_TYPE_TLV_SIZE \
1041 + LBS_MAX_WPA_TLV_SIZE)
1042
1043static int lbs_associate(struct lbs_private *priv,
1044 struct cfg80211_bss *bss,
1045 struct cfg80211_connect_params *sme)
1046{
1047 struct cmd_ds_802_11_associate_response *resp;
1048 struct cmd_ds_802_11_associate *cmd = kzalloc(LBS_ASSOC_MAX_CMD_SIZE,
1049 GFP_KERNEL);
1050 const u8 *ssid_eid;
1051 size_t len, resp_ie_len;
1052 int status;
1053 int ret;
1054 u8 *pos = &(cmd->iebuf[0]);
19757539 1055 u8 *tmp;
e86dc1ca
KD		 1056
1057 lbs_deb_enter(LBS_DEB_CFG80211);
1058
1059 if (!cmd) {
1060 ret = -ENOMEM;
1061 goto done;
1062 }
1063
1064 /*
1065 * cmd 50 00
1066 * length 34 00
1067 * sequence xx xx
1068 * result 00 00
1069 * BSS id 00 13 19 80 da 30
1070 * capabilities 11 00
1071 * listen interval 0a 00
1072 * beacon interval 00 00
1073 * DTIM period 00
1074 * TLVs xx (up to 512 bytes)
1075 */
1076 cmd->hdr.command = cpu_to_le16(CMD_802_11_ASSOCIATE);
1077
1078 /* Fill in static fields */
1079 memcpy(cmd->bssid, bss->bssid, ETH_ALEN);
1080 cmd->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
1081 cmd->capability = cpu_to_le16(bss->capability);
1082
1083 /* add SSID TLV */
1084 ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
1085 if (ssid_eid)
1086 pos += lbs_add_ssid_tlv(pos, ssid_eid + 2, ssid_eid[1]);
1087 else
1088 lbs_deb_assoc("no SSID\n");
1089
1090 /* add DS param TLV */
1091 if (bss->channel)
1092 pos += lbs_add_channel_tlv(pos, bss->channel->hw_value);
1093 else
1094 lbs_deb_assoc("no channel\n");
1095
1096 /* add (empty) CF param TLV */
1097 pos += lbs_add_cf_param_tlv(pos);
1098
1099 /* add rates TLV */
19757539 1100 tmp = pos + 4; /* skip Marvell IE header */
e86dc1ca 1101 pos += lbs_add_common_rates_tlv(pos, bss);
19757539 1102 lbs_deb_hex(LBS_DEB_ASSOC, "Common Rates", tmp, pos - tmp);
e86dc1ca
KD		 1103
1104 /* add auth type TLV */
1105 if (priv->fwrelease >= 0x09000000)
1106 pos += lbs_add_auth_type_tlv(pos, sme->auth_type);
1107
1108 /* add WPA/WPA2 TLV */
1109 if (sme->ie && sme->ie_len)
1110 pos += lbs_add_wpa_tlv(pos, sme->ie, sme->ie_len);
1111
1112 len = (sizeof(*cmd) - sizeof(cmd->iebuf)) +
1113 (u16)(pos - (u8 *) &cmd->iebuf);
1114 cmd->hdr.size = cpu_to_le16(len);
1115
1116 /* store for later use */
1117 memcpy(priv->assoc_bss, bss->bssid, ETH_ALEN);
1118
1119 ret = lbs_cmd_with_response(priv, CMD_802_11_ASSOCIATE, cmd);
1120 if (ret)
1121 goto done;
1122
1123
1124 /* generate connect message to cfg80211 */
1125
1126 resp = (void *) cmd; /* recast for easier field access */
1127 status = le16_to_cpu(resp->statuscode);
1128
1129 /* Convert statis code of old firmware */
1130 if (priv->fwrelease < 0x09000000)
1131 switch (status) {
1132 case 0:
1133 break;
1134 case 1:
1135 lbs_deb_assoc("invalid association parameters\n");
1136 status = WLAN_STATUS_CAPS_UNSUPPORTED;
1137 break;
1138 case 2:
1139 lbs_deb_assoc("timer expired while waiting for AP\n");
1140 status = WLAN_STATUS_AUTH_TIMEOUT;
1141 break;
1142 case 3:
1143 lbs_deb_assoc("association refused by AP\n");
1144 status = WLAN_STATUS_ASSOC_DENIED_UNSPEC;
1145 break;
1146 case 4:
1147 lbs_deb_assoc("authentication refused by AP\n");
1148 status = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION;
1149 break;
1150 default:
1151 lbs_deb_assoc("association failure %d\n", status);
1152 status = WLAN_STATUS_UNSPECIFIED_FAILURE;
1153 }
1154
1155 lbs_deb_assoc("status %d, capability 0x%04x\n", status,
1156 le16_to_cpu(resp->capability));
1157
1158 resp_ie_len = le16_to_cpu(resp->hdr.size)
1159 - sizeof(resp->hdr)
1160 - 6;
1161 cfg80211_connect_result(priv->dev,
1162 priv->assoc_bss,
1163 sme->ie, sme->ie_len,
1164 resp->iebuf, resp_ie_len,
1165 status,
1166 GFP_KERNEL);
1167
1168 if (status == 0) {
1169 /* TODO: get rid of priv->connect_status */
1170 priv->connect_status = LBS_CONNECTED;
1171 netif_carrier_on(priv->dev);
1172 if (!priv->tx_pending_len)
1173 netif_tx_wake_all_queues(priv->dev);
1174 }
1175
1176
1177done:
1178 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1179 return ret;
1180}
1181
cc026819
DW		 1182static struct cfg80211_scan_request *
1183_new_connect_scan_req(struct wiphy *wiphy, struct cfg80211_connect_params *sme)
1184{
1185 struct cfg80211_scan_request *creq = NULL;
1186 int i, n_channels = 0;
1187 enum ieee80211_band band;
1188
1189 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1190 if (wiphy->bands[band])
1191 n_channels += wiphy->bands[band]->n_channels;
1192 }
1193
1194 creq = kzalloc(sizeof(*creq) + sizeof(struct cfg80211_ssid) +
1195 n_channels * sizeof(void *),
1196 GFP_ATOMIC);
1197 if (!creq)
1198 return NULL;
1199
1200 /* SSIDs come after channels */
1201 creq->ssids = (void *)&creq->channels[n_channels];
1202 creq->n_channels = n_channels;
1203 creq->n_ssids = 1;
1204
1205 /* Scan all available channels */
1206 i = 0;
1207 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1208 int j;
1209
1210 if (!wiphy->bands[band])
1211 continue;
1212
1213 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
1214 /* ignore disabled channels */
1215 if (wiphy->bands[band]->channels[j].flags &
1216 IEEE80211_CHAN_DISABLED)
1217 continue;
1218
1219 creq->channels[i] = &wiphy->bands[band]->channels[j];
1220 i++;
1221 }
1222 }
1223 if (i) {
1224 /* Set real number of channels specified in creq->channels[] */
1225 creq->n_channels = i;
1226
1227 /* Scan for the SSID we're going to connect to */
1228 memcpy(creq->ssids[0].ssid, sme->ssid, sme->ssid_len);
1229 creq->ssids[0].ssid_len = sme->ssid_len;
1230 } else {
1231 /* No channels found... */
1232 kfree(creq);
1233 creq = NULL;
1234 }
e86dc1ca 1235
cc026819
DW		 1236 return creq;
1237}
e86dc1ca
KD		 1238
1239static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev,
1240 struct cfg80211_connect_params *sme)
1241{
1242 struct lbs_private *priv = wiphy_priv(wiphy);
1243 struct cfg80211_bss *bss = NULL;
1244 int ret = 0;
1245 u8 preamble = RADIO_PREAMBLE_SHORT;
1246
1247 lbs_deb_enter(LBS_DEB_CFG80211);
1248
cc026819
DW		 1249 if (!sme->bssid) {
1250 /* Run a scan if one isn't in-progress already and if the last
1251 * scan was done more than 2 seconds ago.
e86dc1ca 1252 */
cc026819
DW		 1253 if (priv->scan_req == NULL &&
1254 time_after(jiffies, priv->last_scan + (2 * HZ))) {
1255 struct cfg80211_scan_request *creq;
e86dc1ca 1256
cc026819
DW		 1257 creq = _new_connect_scan_req(wiphy, sme);
1258 if (!creq) {
1259 ret = -EINVAL;
1260 goto done;
1261 }
1262
1263 lbs_deb_assoc("assoc: scanning for compatible AP\n");
1264 _internal_start_scan(priv, true, creq);
1265 }
1266
1267 /* Wait for any in-progress scan to complete */
1268 lbs_deb_assoc("assoc: waiting for scan to complete\n");
1269 wait_event_interruptible_timeout(priv->scan_q,
1270 (priv->scan_req == NULL),
1271 (15 * HZ));
1272 lbs_deb_assoc("assoc: scanning competed\n");
1273 }
e86dc1ca 1274
cc026819
DW		 1275 /* Find the BSS we want using available scan results */
1276 bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
1277 sme->ssid, sme->ssid_len,
1278 WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
e86dc1ca 1279 if (!bss) {
cc026819 1280 lbs_pr_err("assoc: bss %pM not in scan results\n",
e86dc1ca
KD		 1281 sme->bssid);
1282 ret = -ENOENT;
1283 goto done;
1284 }
cc026819 1285 lbs_deb_assoc("trying %pM\n", bss->bssid);
e86dc1ca
KD		 1286 lbs_deb_assoc("cipher 0x%x, key index %d, key len %d\n",
1287 sme->crypto.cipher_group,
1288 sme->key_idx, sme->key_len);
1289
1290 /* As this is a new connection, clear locally stored WEP keys */
1291 priv->wep_tx_key = 0;
1292 memset(priv->wep_key, 0, sizeof(priv->wep_key));
1293 memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len));
1294
1295 /* set/remove WEP keys */
1296 switch (sme->crypto.cipher_group) {
1297 case WLAN_CIPHER_SUITE_WEP40:
1298 case WLAN_CIPHER_SUITE_WEP104:
1299 /* Store provided WEP keys in priv-> */
1300 priv->wep_tx_key = sme->key_idx;
1301 priv->wep_key_len[sme->key_idx] = sme->key_len;
1302 memcpy(priv->wep_key[sme->key_idx], sme->key, sme->key_len);
1303 /* Set WEP keys and WEP mode */
1304 lbs_set_wep_keys(priv);
1305 priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE;
1306 lbs_set_mac_control(priv);
1307 /* No RSN mode for WEP */
1308 lbs_enable_rsn(priv, 0);
1309 break;
1310 case 0: /* there's no WLAN_CIPHER_SUITE_NONE definition */
1311 /*
1312 * If we don't have no WEP, no WPA and no WPA2,
1313 * we remove all keys like in the WPA/WPA2 setup,
1314 * we just don't set RSN.
1315 *
1316 * Therefore: fall-throught
1317 */
1318 case WLAN_CIPHER_SUITE_TKIP:
1319 case WLAN_CIPHER_SUITE_CCMP:
1320 /* Remove WEP keys and WEP mode */
1321 lbs_remove_wep_keys(priv);
1322 priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE;
1323 lbs_set_mac_control(priv);
1324
1325 /* clear the WPA/WPA2 keys */
1326 lbs_set_key_material(priv,
1327 KEY_TYPE_ID_WEP, /* doesn't matter */
1328 KEY_INFO_WPA_UNICAST,
1329 NULL, 0);
1330 lbs_set_key_material(priv,
1331 KEY_TYPE_ID_WEP, /* doesn't matter */
1332 KEY_INFO_WPA_MCAST,
1333 NULL, 0);
1334 /* RSN mode for WPA/WPA2 */
1335 lbs_enable_rsn(priv, sme->crypto.cipher_group != 0);
1336 break;
1337 default:
1338 lbs_pr_err("unsupported cipher group 0x%x\n",
1339 sme->crypto.cipher_group);
1340 ret = -ENOTSUPP;
1341 goto done;
1342 }
1343
1344 lbs_set_authtype(priv, sme);
1345 lbs_set_radio(priv, preamble, 1);
1346
1347 /* Do the actual association */
cc026819 1348 ret = lbs_associate(priv, bss, sme);
e86dc1ca
KD		 1349
1350 done:
1351 if (bss)
1352 cfg80211_put_bss(bss);
1353 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1354 return ret;
1355}
1356
e86dc1ca
KD		 1357static int lbs_cfg_disconnect(struct wiphy *wiphy, struct net_device *dev,
1358 u16 reason_code)
1359{
1360 struct lbs_private *priv = wiphy_priv(wiphy);
1361 struct cmd_ds_802_11_deauthenticate cmd;
ff9fc791 1362
e86dc1ca 1363 lbs_deb_enter_args(LBS_DEB_CFG80211, "reason_code %d", reason_code);
ff9fc791 1364
e86dc1ca
KD		 1365 /* store for lbs_cfg_ret_disconnect() */
1366 priv->disassoc_reason = reason_code;
1367
1368 memset(&cmd, 0, sizeof(cmd));
1369 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1370 /* Mildly ugly to use a locally store my own BSSID ... */
1371 memcpy(cmd.macaddr, &priv->assoc_bss, ETH_ALEN);
1372 cmd.reasoncode = cpu_to_le16(reason_code);
1373
e4fe4eaf
KD		 1374 if (lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd))
1375 return -EFAULT;
1376
1377 cfg80211_disconnected(priv->dev,
1378 priv->disassoc_reason,
1379 NULL, 0,
1380 GFP_KERNEL);
1381 priv->connect_status = LBS_DISCONNECTED;
e86dc1ca
KD		 1382
1383 return 0;
1384}
1385
1386
1387static int lbs_cfg_set_default_key(struct wiphy *wiphy,
1388 struct net_device *netdev,
1389 u8 key_index)
1390{
1391 struct lbs_private *priv = wiphy_priv(wiphy);
1392
1393 lbs_deb_enter(LBS_DEB_CFG80211);
1394
1395 if (key_index != priv->wep_tx_key) {
1396 lbs_deb_assoc("set_default_key: to %d\n", key_index);
1397 priv->wep_tx_key = key_index;
1398 lbs_set_wep_keys(priv);
1399 }
1400
1401 return 0;
1402}
1403
1404
1405static int lbs_cfg_add_key(struct wiphy *wiphy, struct net_device *netdev,
1406 u8 idx, const u8 *mac_addr,
1407 struct key_params *params)
1408{
1409 struct lbs_private *priv = wiphy_priv(wiphy);
1410 u16 key_info;
1411 u16 key_type;
1412 int ret = 0;
1413
1414 lbs_deb_enter(LBS_DEB_CFG80211);
1415
1416 lbs_deb_assoc("add_key: cipher 0x%x, mac_addr %pM\n",
1417 params->cipher, mac_addr);
1418 lbs_deb_assoc("add_key: key index %d, key len %d\n",
1419 idx, params->key_len);
1420 if (params->key_len)
1421 lbs_deb_hex(LBS_DEB_CFG80211, "KEY",
1422 params->key, params->key_len);
1423
1424 lbs_deb_assoc("add_key: seq len %d\n", params->seq_len);
1425 if (params->seq_len)
1426 lbs_deb_hex(LBS_DEB_CFG80211, "SEQ",
1427 params->seq, params->seq_len);
1428
1429 switch (params->cipher) {
1430 case WLAN_CIPHER_SUITE_WEP40:
1431 case WLAN_CIPHER_SUITE_WEP104:
1432 /* actually compare if something has changed ... */
1433 if ((priv->wep_key_len[idx] != params->key_len) ||
1434 memcmp(priv->wep_key[idx],
1435 params->key, params->key_len) != 0) {
1436 priv->wep_key_len[idx] = params->key_len;
1437 memcpy(priv->wep_key[idx],
1438 params->key, params->key_len);
1439 lbs_set_wep_keys(priv);
1440 }
1441 break;
1442 case WLAN_CIPHER_SUITE_TKIP:
1443 case WLAN_CIPHER_SUITE_CCMP:
1444 key_info = KEY_INFO_WPA_ENABLED | ((idx == 0)
1445 ? KEY_INFO_WPA_UNICAST
1446 : KEY_INFO_WPA_MCAST);
1447 key_type = (params->cipher == WLAN_CIPHER_SUITE_TKIP)
1448 ? KEY_TYPE_ID_TKIP
1449 : KEY_TYPE_ID_AES;
1450 lbs_set_key_material(priv,
1451 key_type,
1452 key_info,
1453 params->key, params->key_len);
1454 break;
1455 default:
1456 lbs_pr_err("unhandled cipher 0x%x\n", params->cipher);
1457 ret = -ENOTSUPP;
1458 break;
1459 }
1460
1461 return ret;
1462}
1463
1464
1465static int lbs_cfg_del_key(struct wiphy *wiphy, struct net_device *netdev,
1466 u8 key_index, const u8 *mac_addr)
1467{
1468
1469 lbs_deb_enter(LBS_DEB_CFG80211);
1470
1471 lbs_deb_assoc("del_key: key_idx %d, mac_addr %pM\n",
1472 key_index, mac_addr);
1473
1474#ifdef TODO
1475 struct lbs_private *priv = wiphy_priv(wiphy);
1476 /*
1477 * I think can keep this a NO-OP, because:
1478
1479 * - we clear all keys whenever we do lbs_cfg_connect() anyway
1480 * - neither "iw" nor "wpa_supplicant" won't call this during
1481 * an ongoing connection
1482 * - TODO: but I have to check if this is still true when
1483 * I set the AP to periodic re-keying
1484 * - we've not kzallec() something when we've added a key at
1485 * lbs_cfg_connect() or lbs_cfg_add_key().
1486 *
1487 * This causes lbs_cfg_del_key() only called at disconnect time,
1488 * where we'd just waste time deleting a key that is not going
1489 * to be used anyway.
1490 */
1491 if (key_index < 3 && priv->wep_key_len[key_index]) {
1492 priv->wep_key_len[key_index] = 0;
1493 lbs_set_wep_keys(priv);
1494 }
1495#endif
1496
1497 return 0;
1498}
1499
1500
e86dc1ca
KD		 1501/***************************************************************************
1502 * Get station
1503 */
1504
e86dc1ca
KD		 1505static int lbs_cfg_get_station(struct wiphy *wiphy, struct net_device *dev,
1506 u8 *mac, struct station_info *sinfo)
1507{
1508 struct lbs_private *priv = wiphy_priv(wiphy);
1509 s8 signal, noise;
1510 int ret;
1511 size_t i;
1512
1513 lbs_deb_enter(LBS_DEB_CFG80211);
1514
1515 sinfo->filled |= STATION_INFO_TX_BYTES |
1516 STATION_INFO_TX_PACKETS |
1517 STATION_INFO_RX_BYTES |
1518 STATION_INFO_RX_PACKETS;
1519 sinfo->tx_bytes = priv->dev->stats.tx_bytes;
1520 sinfo->tx_packets = priv->dev->stats.tx_packets;
1521 sinfo->rx_bytes = priv->dev->stats.rx_bytes;
1522 sinfo->rx_packets = priv->dev->stats.rx_packets;
1523
1524 /* Get current RSSI */
9fb7663d 1525 ret = lbs_get_rssi(priv, &signal, &noise);
e86dc1ca
KD		 1526 if (ret == 0) {
1527 sinfo->signal = signal;
1528 sinfo->filled |= STATION_INFO_SIGNAL;
1529 }
1530
1531 /* Convert priv->cur_rate from hw_value to NL80211 value */
1532 for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
1533 if (priv->cur_rate == lbs_rates[i].hw_value) {
1534 sinfo->txrate.legacy = lbs_rates[i].bitrate;
1535 sinfo->filled |= STATION_INFO_TX_BITRATE;
1536 break;
1537 }
1538 }
1539
1540 return 0;
1541}
1542
1543
1544
1545
1546/***************************************************************************
1547 * "Site survey", here just current channel and noise level
1548 */
1549
1550static int lbs_get_survey(struct wiphy *wiphy, struct net_device *dev,
1551 int idx, struct survey_info *survey)
1552{
1553 struct lbs_private *priv = wiphy_priv(wiphy);
1554 s8 signal, noise;
1555 int ret;
1556
1557 if (idx != 0)
1558 ret = -ENOENT;
1559
1560 lbs_deb_enter(LBS_DEB_CFG80211);
1561
1562 survey->channel = ieee80211_get_channel(wiphy,
1563 ieee80211_channel_to_frequency(priv->channel));
1564
9fb7663d 1565 ret = lbs_get_rssi(priv, &signal, &noise);
e86dc1ca
KD		 1566 if (ret == 0) {
1567 survey->filled = SURVEY_INFO_NOISE_DBM;
1568 survey->noise = noise;
1569 }
1570
1571 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1572 return ret;
1573}
1574
1575
1576
1577
1578/***************************************************************************
1579 * Change interface
1580 */
1581
1582static int lbs_change_intf(struct wiphy *wiphy, struct net_device *dev,
1583 enum nl80211_iftype type, u32 *flags,
1584 struct vif_params *params)
1585{
1586 struct lbs_private *priv = wiphy_priv(wiphy);
1587 int ret = 0;
1588
1589 lbs_deb_enter(LBS_DEB_CFG80211);
1590
1591 switch (type) {
1592 case NL80211_IFTYPE_MONITOR:
a45b6f4f 1593 ret = lbs_set_monitor_mode(priv, 1);
e86dc1ca
KD		 1594 break;
1595 case NL80211_IFTYPE_STATION:
1596 if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
a45b6f4f 1597 ret = lbs_set_monitor_mode(priv, 0);
e86dc1ca
KD		 1598 if (!ret)
1599 ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 1);
1600 break;
1601 case NL80211_IFTYPE_ADHOC:
1602 if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
a45b6f4f 1603 ret = lbs_set_monitor_mode(priv, 0);
e86dc1ca
KD		 1604 if (!ret)
1605 ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 2);
1606 break;
1607 default:
1608 ret = -ENOTSUPP;
1609 }
1610
1611 if (!ret)
1612 priv->wdev->iftype = type;
1613
1614 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1615 return ret;
1616}
1617
1618
1619
1620/***************************************************************************
1621 * IBSS (Ad-Hoc)
1622 */
1623
1624/* The firmware needs the following bits masked out of the beacon-derived
1625 * capability field when associating/joining to a BSS:
1626 * 9 (QoS), 11 (APSD), 12 (unused), 14 (unused), 15 (unused)
1627 */
1628#define CAPINFO_MASK (~(0xda00))
1629
1630
1631static void lbs_join_post(struct lbs_private *priv,
1632 struct cfg80211_ibss_params *params,
1633 u8 *bssid, u16 capability)
1634{
1635 u8 fake_ie[2 + IEEE80211_MAX_SSID_LEN + /* ssid */
1636 2 + 4 + /* basic rates */
1637 2 + 1 + /* DS parameter */
1638 2 + 2 + /* atim */
1639 2 + 8]; /* extended rates */
1640 u8 *fake = fake_ie;
1641
1642 lbs_deb_enter(LBS_DEB_CFG80211);
1643
1644 /*
1645 * For cfg80211_inform_bss, we'll need a fake IE, as we can't get
1646 * the real IE from the firmware. So we fabricate a fake IE based on
1647 * what the firmware actually sends (sniffed with wireshark).
1648 */
1649 /* Fake SSID IE */
1650 *fake++ = WLAN_EID_SSID;
1651 *fake++ = params->ssid_len;
1652 memcpy(fake, params->ssid, params->ssid_len);
1653 fake += params->ssid_len;
1654 /* Fake supported basic rates IE */
1655 *fake++ = WLAN_EID_SUPP_RATES;
1656 *fake++ = 4;
1657 *fake++ = 0x82;
1658 *fake++ = 0x84;
1659 *fake++ = 0x8b;
1660 *fake++ = 0x96;
1661 /* Fake DS channel IE */
1662 *fake++ = WLAN_EID_DS_PARAMS;
1663 *fake++ = 1;
1664 *fake++ = params->channel->hw_value;
1665 /* Fake IBSS params IE */
1666 *fake++ = WLAN_EID_IBSS_PARAMS;
1667 *fake++ = 2;
1668 *fake++ = 0; /* ATIM=0 */
1669 *fake++ = 0;
1670 /* Fake extended rates IE, TODO: don't add this for 802.11b only,
1671 * but I don't know how this could be checked */
1672 *fake++ = WLAN_EID_EXT_SUPP_RATES;
1673 *fake++ = 8;
1674 *fake++ = 0x0c;
1675 *fake++ = 0x12;
1676 *fake++ = 0x18;
1677 *fake++ = 0x24;
1678 *fake++ = 0x30;
1679 *fake++ = 0x48;
1680 *fake++ = 0x60;
1681 *fake++ = 0x6c;
1682 lbs_deb_hex(LBS_DEB_CFG80211, "IE", fake_ie, fake - fake_ie);
1683
1684 cfg80211_inform_bss(priv->wdev->wiphy,
1685 params->channel,
1686 bssid,
1687 0,
1688 capability,
1689 params->beacon_interval,
1690 fake_ie, fake - fake_ie,
1691 0, GFP_KERNEL);
e4fe4eaf
KD		 1692
1693 memcpy(priv->wdev->ssid, params->ssid, params->ssid_len);
1694 priv->wdev->ssid_len = params->ssid_len;
1695
e86dc1ca
KD		 1696 cfg80211_ibss_joined(priv->dev, bssid, GFP_KERNEL);
1697
1698 /* TODO: consider doing this at MACREG_INT_CODE_LINK_SENSED time */
1699 priv->connect_status = LBS_CONNECTED;
1700 netif_carrier_on(priv->dev);
1701 if (!priv->tx_pending_len)
1702 netif_wake_queue(priv->dev);
1703
1704 lbs_deb_leave(LBS_DEB_CFG80211);
1705}
1706
1707static int lbs_ibss_join_existing(struct lbs_private *priv,
1708 struct cfg80211_ibss_params *params,
1709 struct cfg80211_bss *bss)
1710{
1711 const u8 *rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
1712 struct cmd_ds_802_11_ad_hoc_join cmd;
1713 u8 preamble = RADIO_PREAMBLE_SHORT;
1714 int ret = 0;
1715
1716 lbs_deb_enter(LBS_DEB_CFG80211);
1717
1718 /* TODO: set preamble based on scan result */
1719 ret = lbs_set_radio(priv, preamble, 1);
1720 if (ret)
1721 goto out;
1722
1723 /*
1724 * Example CMD_802_11_AD_HOC_JOIN command:
1725 *
1726 * command 2c 00 CMD_802_11_AD_HOC_JOIN
1727 * size 65 00
1728 * sequence xx xx
1729 * result 00 00
1730 * bssid 02 27 27 97 2f 96
1731 * ssid 49 42 53 53 00 00 00 00
1732 * 00 00 00 00 00 00 00 00
1733 * 00 00 00 00 00 00 00 00
1734 * 00 00 00 00 00 00 00 00
1735 * type 02 CMD_BSS_TYPE_IBSS
1736 * beacon period 64 00
1737 * dtim period 00
1738 * timestamp 00 00 00 00 00 00 00 00
1739 * localtime 00 00 00 00 00 00 00 00
1740 * IE DS 03
1741 * IE DS len 01
1742 * IE DS channel 01
1743 * reserveed 00 00 00 00
1744 * IE IBSS 06
1745 * IE IBSS len 02
1746 * IE IBSS atim 00 00
1747 * reserved 00 00 00 00
1748 * capability 02 00
1749 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c 00
1750 * fail timeout ff 00
1751 * probe delay 00 00
1752 */
1753 memset(&cmd, 0, sizeof(cmd));
1754 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1755
1756 memcpy(cmd.bss.bssid, bss->bssid, ETH_ALEN);
1757 memcpy(cmd.bss.ssid, params->ssid, params->ssid_len);
1758 cmd.bss.type = CMD_BSS_TYPE_IBSS;
1759 cmd.bss.beaconperiod = cpu_to_le16(params->beacon_interval);
1760 cmd.bss.ds.header.id = WLAN_EID_DS_PARAMS;
1761 cmd.bss.ds.header.len = 1;
1762 cmd.bss.ds.channel = params->channel->hw_value;
1763 cmd.bss.ibss.header.id = WLAN_EID_IBSS_PARAMS;
1764 cmd.bss.ibss.header.len = 2;
1765 cmd.bss.ibss.atimwindow = 0;
1766 cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
1767
1768 /* set rates to the intersection of our rates and the rates in the
1769 bss */
1770 if (!rates_eid) {
1771 lbs_add_rates(cmd.bss.rates);
1772 } else {
1773 int hw, i;
1774 u8 rates_max = rates_eid[1];
1775 u8 *rates = cmd.bss.rates;
1776 for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
1777 u8 hw_rate = lbs_rates[hw].bitrate / 5;
1778 for (i = 0; i < rates_max; i++) {
1779 if (hw_rate == (rates_eid[i+2] & 0x7f)) {
1780 u8 rate = rates_eid[i+2];
1781 if (rate == 0x02 || rate == 0x04 ||
1782 rate == 0x0b || rate == 0x16)
1783 rate |= 0x80;
1784 *rates++ = rate;
1785 }
1786 }
1787 }
1788 }
1789
1790 /* Only v8 and below support setting this */
1791 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
1792 cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
1793 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1794 }
1795 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd);
1796 if (ret)
1797 goto out;
1798
1799 /*
1800 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
1801 *
1802 * response 2c 80
1803 * size 09 00
1804 * sequence xx xx
1805 * result 00 00
1806 * reserved 00
1807 */
1808 lbs_join_post(priv, params, bss->bssid, bss->capability);
1809
1810 out:
1811 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1812 return ret;
1813}
1814
1815
1816
1817static int lbs_ibss_start_new(struct lbs_private *priv,
1818 struct cfg80211_ibss_params *params)
1819{
1820 struct cmd_ds_802_11_ad_hoc_start cmd;
1821 struct cmd_ds_802_11_ad_hoc_result *resp =
1822 (struct cmd_ds_802_11_ad_hoc_result *) &cmd;
1823 u8 preamble = RADIO_PREAMBLE_SHORT;
1824 int ret = 0;
1825 u16 capability;
1826
1827 lbs_deb_enter(LBS_DEB_CFG80211);
1828
1829 ret = lbs_set_radio(priv, preamble, 1);
1830 if (ret)
1831 goto out;
1832
1833 /*
1834 * Example CMD_802_11_AD_HOC_START command:
1835 *
1836 * command 2b 00 CMD_802_11_AD_HOC_START
1837 * size b1 00
1838 * sequence xx xx
1839 * result 00 00
1840 * ssid 54 45 53 54 00 00 00 00
1841 * 00 00 00 00 00 00 00 00
1842 * 00 00 00 00 00 00 00 00
1843 * 00 00 00 00 00 00 00 00
1844 * bss type 02
1845 * beacon period 64 00
1846 * dtim period 00
1847 * IE IBSS 06
1848 * IE IBSS len 02
1849 * IE IBSS atim 00 00
1850 * reserved 00 00 00 00
1851 * IE DS 03
1852 * IE DS len 01
1853 * IE DS channel 01
1854 * reserved 00 00 00 00
1855 * probe delay 00 00
1856 * capability 02 00
1857 * rates 82 84 8b 96 (basic rates with have bit 7 set)
1858 * 0c 12 18 24 30 48 60 6c
1859 * padding 100 bytes
1860 */
1861 memset(&cmd, 0, sizeof(cmd));
1862 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1863 memcpy(cmd.ssid, params->ssid, params->ssid_len);
1864 cmd.bsstype = CMD_BSS_TYPE_IBSS;
1865 cmd.beaconperiod = cpu_to_le16(params->beacon_interval);
1866 cmd.ibss.header.id = WLAN_EID_IBSS_PARAMS;
1867 cmd.ibss.header.len = 2;
1868 cmd.ibss.atimwindow = 0;
1869 cmd.ds.header.id = WLAN_EID_DS_PARAMS;
1870 cmd.ds.header.len = 1;
1871 cmd.ds.channel = params->channel->hw_value;
1872 /* Only v8 and below support setting probe delay */
1873 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8)
1874 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1875 /* TODO: mix in WLAN_CAPABILITY_PRIVACY */
1876 capability = WLAN_CAPABILITY_IBSS;
1877 cmd.capability = cpu_to_le16(capability);
1878 lbs_add_rates(cmd.rates);
1879
1880
1881 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd);
1882 if (ret)
1883 goto out;
1884
1885 /*
1886 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
1887 *
1888 * response 2b 80
1889 * size 14 00
1890 * sequence xx xx
1891 * result 00 00
1892 * reserved 00
1893 * bssid 02 2b 7b 0f 86 0e
1894 */
1895 lbs_join_post(priv, params, resp->bssid, capability);
1896
1897 out:
1898 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1899 return ret;
1900}
1901
1902
1903static int lbs_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1904 struct cfg80211_ibss_params *params)
1905{
1906 struct lbs_private *priv = wiphy_priv(wiphy);
1907 int ret = 0;
1908 struct cfg80211_bss *bss;
1909 DECLARE_SSID_BUF(ssid_buf);
1910
1911 lbs_deb_enter(LBS_DEB_CFG80211);
1912
1913 if (!params->channel) {
1914 ret = -ENOTSUPP;
1915 goto out;
1916 }
1917
1918 ret = lbs_set_channel(priv, params->channel->hw_value);
1919 if (ret)
ff9fc791
HS		 1920 goto out;
1921
e86dc1ca
KD		 1922 /* Search if someone is beaconing. This assumes that the
1923 * bss list is populated already */
1924 bss = cfg80211_get_bss(wiphy, params->channel, params->bssid,
1925 params->ssid, params->ssid_len,
1926 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
1927
1928 if (bss) {
1929 ret = lbs_ibss_join_existing(priv, params, bss);
1930 cfg80211_put_bss(bss);
1931 } else
1932 ret = lbs_ibss_start_new(priv, params);
1933
ff9fc791
HS		 1934
1935 out:
1936 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1937 return ret;
1938}
1939
1940
e86dc1ca
KD		 1941static int lbs_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1942{
1943 struct lbs_private *priv = wiphy_priv(wiphy);
1944 struct cmd_ds_802_11_ad_hoc_stop cmd;
1945 int ret = 0;
1946
1947 lbs_deb_enter(LBS_DEB_CFG80211);
1948
1949 memset(&cmd, 0, sizeof(cmd));
1950 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1951 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd);
1952
1953 /* TODO: consider doing this at MACREG_INT_CODE_ADHOC_BCN_LOST time */
1954 lbs_mac_event_disconnected(priv);
1955
1956 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1957 return ret;
1958}
1959
ff9fc791
HS		 1960
1961
e86dc1ca
KD		 1962
1963/***************************************************************************
1964 * Initialization
1965 */
1966
ff9fc791
HS		 1967static struct cfg80211_ops lbs_cfg80211_ops = {
1968 .set_channel = lbs_cfg_set_channel,
e86dc1ca
KD		 1969 .scan = lbs_cfg_scan,
1970 .connect = lbs_cfg_connect,
1971 .disconnect = lbs_cfg_disconnect,
1972 .add_key = lbs_cfg_add_key,
1973 .del_key = lbs_cfg_del_key,
1974 .set_default_key = lbs_cfg_set_default_key,
1975 .get_station = lbs_cfg_get_station,
1976 .dump_survey = lbs_get_survey,
1977 .change_virtual_intf = lbs_change_intf,
1978 .join_ibss = lbs_join_ibss,
1979 .leave_ibss = lbs_leave_ibss,
ff9fc791
HS		 1980};
1981
1982
1983/*
1984 * At this time lbs_private *priv doesn't even exist, so we just allocate
1985 * memory and don't initialize the wiphy further. This is postponed until we
1986 * can talk to the firmware and happens at registration time in
1987 * lbs_cfg_wiphy_register().
1988 */
1989struct wireless_dev *lbs_cfg_alloc(struct device *dev)
1990{
1991 int ret = 0;
1992 struct wireless_dev *wdev;
1993
1994 lbs_deb_enter(LBS_DEB_CFG80211);
1995
1996 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1997 if (!wdev) {
1998 dev_err(dev, "cannot allocate wireless device\n");
1999 return ERR_PTR(-ENOMEM);
2000 }
2001
2002 wdev->wiphy = wiphy_new(&lbs_cfg80211_ops, sizeof(struct lbs_private));
2003 if (!wdev->wiphy) {
2004 dev_err(dev, "cannot allocate wiphy\n");
2005 ret = -ENOMEM;
2006 goto err_wiphy_new;
2007 }
2008
2009 lbs_deb_leave(LBS_DEB_CFG80211);
2010 return wdev;
2011
2012 err_wiphy_new:
2013 kfree(wdev);
2014 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2015 return ERR_PTR(ret);
2016}
2017
2018
e86dc1ca
KD		 2019static void lbs_cfg_set_regulatory_hint(struct lbs_private *priv)
2020{
2021 struct region_code_mapping {
2022 const char *cn;
2023 int code;
2024 };
2025
2026 /* Section 5.17.2 */
2027 static struct region_code_mapping regmap[] = {
2028 {"US ", 0x10}, /* US FCC */
2029 {"CA ", 0x20}, /* Canada */
2030 {"EU ", 0x30}, /* ETSI */
2031 {"ES ", 0x31}, /* Spain */
2032 {"FR ", 0x32}, /* France */
2033 {"JP ", 0x40}, /* Japan */
2034 };
2035 size_t i;
2036
2037 lbs_deb_enter(LBS_DEB_CFG80211);
2038
2039 for (i = 0; i < ARRAY_SIZE(regmap); i++)
2040 if (regmap[i].code == priv->regioncode) {
2041 regulatory_hint(priv->wdev->wiphy, regmap[i].cn);
2042 break;
2043 }
2044
2045 lbs_deb_leave(LBS_DEB_CFG80211);
2046}
2047
2048
ff9fc791
HS		 2049/*
2050 * This function get's called after lbs_setup_firmware() determined the
2051 * firmware capabities. So we can setup the wiphy according to our
2052 * hardware/firmware.
2053 */
2054int lbs_cfg_register(struct lbs_private *priv)
2055{
2056 struct wireless_dev *wdev = priv->wdev;
2057 int ret;
2058
2059 lbs_deb_enter(LBS_DEB_CFG80211);
2060
2061 wdev->wiphy->max_scan_ssids = 1;
2062 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2063
e86dc1ca
KD		 2064 wdev->wiphy->interface_modes =
2065 BIT(NL80211_IFTYPE_STATION) |
2066 BIT(NL80211_IFTYPE_ADHOC);
2067 if (lbs_rtap_supported(priv))
2068 wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
ff9fc791 2069
ff9fc791
HS		 2070 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &lbs_band_2ghz;
2071
2072 /*
2073 * We could check priv->fwcapinfo && FW_CAPINFO_WPA, but I have
2074 * never seen a firmware without WPA
2075 */
2076 wdev->wiphy->cipher_suites = cipher_suites;
2077 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
1047d5ed 2078 wdev->wiphy->reg_notifier = lbs_reg_notifier;
ff9fc791
HS		 2079
2080 ret = wiphy_register(wdev->wiphy);
2081 if (ret < 0)
2082 lbs_pr_err("cannot register wiphy device\n");
2083
73714004
DM		 2084 priv->wiphy_registered = true;
2085
ff9fc791
HS		 2086 ret = register_netdev(priv->dev);
2087 if (ret)
2088 lbs_pr_err("cannot register network device\n");
2089
e86dc1ca
KD		 2090 INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
2091
2092 lbs_cfg_set_regulatory_hint(priv);
2093
ff9fc791
HS		 2094 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2095 return ret;
2096}
2097
1047d5ed
KD		 2098int lbs_reg_notifier(struct wiphy *wiphy,
2099 struct regulatory_request *request)
2100{
cc4b9d39
DW		 2101 struct lbs_private *priv = wiphy_priv(wiphy);
2102 int ret;
2103
1047d5ed
KD		 2104 lbs_deb_enter_args(LBS_DEB_CFG80211, "cfg80211 regulatory domain "
2105 "callback for domain %c%c\n", request->alpha2[0],
2106 request->alpha2[1]);
2107
cc4b9d39 2108 ret = lbs_set_11d_domain_info(priv, request, wiphy->bands);
1047d5ed
KD		 2109
2110 lbs_deb_leave(LBS_DEB_CFG80211);
cc4b9d39 2111 return ret;
1047d5ed 2112}
ff9fc791 2113
e86dc1ca
KD		 2114void lbs_scan_deinit(struct lbs_private *priv)
2115{
2116 lbs_deb_enter(LBS_DEB_CFG80211);
2117 cancel_delayed_work_sync(&priv->scan_work);
2118}
2119
2120
ff9fc791
HS		 2121void lbs_cfg_free(struct lbs_private *priv)
2122{
2123 struct wireless_dev *wdev = priv->wdev;
2124
2125 lbs_deb_enter(LBS_DEB_CFG80211);
2126
2127 if (!wdev)
2128 return;
2129
73714004 2130 if (priv->wiphy_registered)
ff9fc791 2131 wiphy_unregister(wdev->wiphy);
73714004
DM		 2132
2133 if (wdev->wiphy)
ff9fc791 2134 wiphy_free(wdev->wiphy);
73714004 2135
ff9fc791
HS		 2136 kfree(wdev);
2137}
Clone of davem's net-next-2.6 tree