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mwifiex: add cfg80211 dump_survey handler
[mirror_ubuntu-artful-kernel.git] / drivers / net / wireless / brcm80211 / brcmfmac / cfg80211.c
1 /*
2 * Copyright (c) 2010 Broadcom Corporation
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 /* Toplevel file. Relies on dhd_linux.c to send commands to the dongle. */
18
19 #include <linux/kernel.h>
20 #include <linux/etherdevice.h>
21 #include <linux/module.h>
22 #include <linux/vmalloc.h>
23 #include <net/cfg80211.h>
24 #include <net/netlink.h>
25
26 #include <brcmu_utils.h>
27 #include <defs.h>
28 #include <brcmu_wifi.h>
29 #include "core.h"
30 #include "debug.h"
31 #include "tracepoint.h"
32 #include "fwil_types.h"
33 #include "p2p.h"
34 #include "btcoex.h"
35 #include "cfg80211.h"
36 #include "feature.h"
37 #include "fwil.h"
38 #include "proto.h"
39 #include "vendor.h"
40 #include "bus.h"
41
42 #define BRCMF_SCAN_IE_LEN_MAX 2048
43 #define BRCMF_PNO_VERSION 2
44 #define BRCMF_PNO_TIME 30
45 #define BRCMF_PNO_REPEAT 4
46 #define BRCMF_PNO_FREQ_EXPO_MAX 3
47 #define BRCMF_PNO_MAX_PFN_COUNT 16
48 #define BRCMF_PNO_ENABLE_ADAPTSCAN_BIT 6
49 #define BRCMF_PNO_HIDDEN_BIT 2
50 #define BRCMF_PNO_WPA_AUTH_ANY 0xFFFFFFFF
51 #define BRCMF_PNO_SCAN_COMPLETE 1
52 #define BRCMF_PNO_SCAN_INCOMPLETE 0
53
54 #define BRCMF_IFACE_MAX_CNT 3
55
56 #define WPA_OUI "\x00\x50\xF2" /* WPA OUI */
57 #define WPA_OUI_TYPE 1
58 #define RSN_OUI "\x00\x0F\xAC" /* RSN OUI */
59 #define WME_OUI_TYPE 2
60 #define WPS_OUI_TYPE 4
61
62 #define VS_IE_FIXED_HDR_LEN 6
63 #define WPA_IE_VERSION_LEN 2
64 #define WPA_IE_MIN_OUI_LEN 4
65 #define WPA_IE_SUITE_COUNT_LEN 2
66
67 #define WPA_CIPHER_NONE 0 /* None */
68 #define WPA_CIPHER_WEP_40 1 /* WEP (40-bit) */
69 #define WPA_CIPHER_TKIP 2 /* TKIP: default for WPA */
70 #define WPA_CIPHER_AES_CCM 4 /* AES (CCM) */
71 #define WPA_CIPHER_WEP_104 5 /* WEP (104-bit) */
72
73 #define RSN_AKM_NONE 0 /* None (IBSS) */
74 #define RSN_AKM_UNSPECIFIED 1 /* Over 802.1x */
75 #define RSN_AKM_PSK 2 /* Pre-shared Key */
76 #define RSN_CAP_LEN 2 /* Length of RSN capabilities */
77 #define RSN_CAP_PTK_REPLAY_CNTR_MASK 0x000C
78
79 #define VNDR_IE_CMD_LEN 4 /* length of the set command
80 * string :"add", "del" (+ NUL)
81 */
82 #define VNDR_IE_COUNT_OFFSET 4
83 #define VNDR_IE_PKTFLAG_OFFSET 8
84 #define VNDR_IE_VSIE_OFFSET 12
85 #define VNDR_IE_HDR_SIZE 12
86 #define VNDR_IE_PARSE_LIMIT 5
87
88 #define DOT11_MGMT_HDR_LEN 24 /* d11 management header len */
89 #define DOT11_BCN_PRB_FIXED_LEN 12 /* beacon/probe fixed length */
90
91 #define BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS 320
92 #define BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS 400
93 #define BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS 20
94
95 #define BRCMF_ASSOC_PARAMS_FIXED_SIZE \
96 (sizeof(struct brcmf_assoc_params_le) - sizeof(u16))
97
98 static bool check_vif_up(struct brcmf_cfg80211_vif *vif)
99 {
100 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state)) {
101 brcmf_dbg(INFO, "device is not ready : status (%lu)\n",
102 vif->sme_state);
103 return false;
104 }
105 return true;
106 }
107
108 #define RATE_TO_BASE100KBPS(rate) (((rate) * 10) / 2)
109 #define RATETAB_ENT(_rateid, _flags) \
110 { \
111 .bitrate = RATE_TO_BASE100KBPS(_rateid), \
112 .hw_value = (_rateid), \
113 .flags = (_flags), \
114 }
115
116 static struct ieee80211_rate __wl_rates[] = {
117 RATETAB_ENT(BRCM_RATE_1M, 0),
118 RATETAB_ENT(BRCM_RATE_2M, IEEE80211_RATE_SHORT_PREAMBLE),
119 RATETAB_ENT(BRCM_RATE_5M5, IEEE80211_RATE_SHORT_PREAMBLE),
120 RATETAB_ENT(BRCM_RATE_11M, IEEE80211_RATE_SHORT_PREAMBLE),
121 RATETAB_ENT(BRCM_RATE_6M, 0),
122 RATETAB_ENT(BRCM_RATE_9M, 0),
123 RATETAB_ENT(BRCM_RATE_12M, 0),
124 RATETAB_ENT(BRCM_RATE_18M, 0),
125 RATETAB_ENT(BRCM_RATE_24M, 0),
126 RATETAB_ENT(BRCM_RATE_36M, 0),
127 RATETAB_ENT(BRCM_RATE_48M, 0),
128 RATETAB_ENT(BRCM_RATE_54M, 0),
129 };
130
131 #define wl_a_rates (__wl_rates + 4)
132 #define wl_a_rates_size 8
133 #define wl_g_rates (__wl_rates + 0)
134 #define wl_g_rates_size 12
135
136 /* Band templates duplicated per wiphy. The channel info
137 * is filled in after querying the device.
138 */
139 static const struct ieee80211_supported_band __wl_band_2ghz = {
140 .band = IEEE80211_BAND_2GHZ,
141 .bitrates = wl_g_rates,
142 .n_bitrates = wl_g_rates_size,
143 };
144
145 static const struct ieee80211_supported_band __wl_band_5ghz_a = {
146 .band = IEEE80211_BAND_5GHZ,
147 .bitrates = wl_a_rates,
148 .n_bitrates = wl_a_rates_size,
149 };
150
151 /* This is to override regulatory domains defined in cfg80211 module (reg.c)
152 * By default world regulatory domain defined in reg.c puts the flags
153 * NL80211_RRF_NO_IR for 5GHz channels (for * 36..48 and 149..165).
154 * With respect to these flags, wpa_supplicant doesn't * start p2p
155 * operations on 5GHz channels. All the changes in world regulatory
156 * domain are to be done here.
157 */
158 static const struct ieee80211_regdomain brcmf_regdom = {
159 .n_reg_rules = 4,
160 .alpha2 = "99",
161 .reg_rules = {
162 /* IEEE 802.11b/g, channels 1..11 */
163 REG_RULE(2412-10, 2472+10, 40, 6, 20, 0),
164 /* If any */
165 /* IEEE 802.11 channel 14 - Only JP enables
166 * this and for 802.11b only
167 */
168 REG_RULE(2484-10, 2484+10, 20, 6, 20, 0),
169 /* IEEE 802.11a, channel 36..64 */
170 REG_RULE(5150-10, 5350+10, 80, 6, 20, 0),
171 /* IEEE 802.11a, channel 100..165 */
172 REG_RULE(5470-10, 5850+10, 80, 6, 20, 0), }
173 };
174
175 static const u32 __wl_cipher_suites[] = {
176 WLAN_CIPHER_SUITE_WEP40,
177 WLAN_CIPHER_SUITE_WEP104,
178 WLAN_CIPHER_SUITE_TKIP,
179 WLAN_CIPHER_SUITE_CCMP,
180 WLAN_CIPHER_SUITE_AES_CMAC,
181 };
182
183 /* Vendor specific ie. id = 221, oui and type defines exact ie */
184 struct brcmf_vs_tlv {
185 u8 id;
186 u8 len;
187 u8 oui[3];
188 u8 oui_type;
189 };
190
191 struct parsed_vndr_ie_info {
192 u8 *ie_ptr;
193 u32 ie_len; /* total length including id & length field */
194 struct brcmf_vs_tlv vndrie;
195 };
196
197 struct parsed_vndr_ies {
198 u32 count;
199 struct parsed_vndr_ie_info ie_info[VNDR_IE_PARSE_LIMIT];
200 };
201
202 static int brcmf_roamoff;
203 module_param_named(roamoff, brcmf_roamoff, int, S_IRUSR);
204 MODULE_PARM_DESC(roamoff, "do not use internal roaming engine");
205
206 /* Quarter dBm units to mW
207 * Table starts at QDBM_OFFSET, so the first entry is mW for qdBm=153
208 * Table is offset so the last entry is largest mW value that fits in
209 * a u16.
210 */
211
212 #define QDBM_OFFSET 153 /* Offset for first entry */
213 #define QDBM_TABLE_LEN 40 /* Table size */
214
215 /* Smallest mW value that will round up to the first table entry, QDBM_OFFSET.
216 * Value is ( mW(QDBM_OFFSET - 1) + mW(QDBM_OFFSET) ) / 2
217 */
218 #define QDBM_TABLE_LOW_BOUND 6493 /* Low bound */
219
220 /* Largest mW value that will round down to the last table entry,
221 * QDBM_OFFSET + QDBM_TABLE_LEN-1.
222 * Value is ( mW(QDBM_OFFSET + QDBM_TABLE_LEN - 1) +
223 * mW(QDBM_OFFSET + QDBM_TABLE_LEN) ) / 2.
224 */
225 #define QDBM_TABLE_HIGH_BOUND 64938 /* High bound */
226
227 static const u16 nqdBm_to_mW_map[QDBM_TABLE_LEN] = {
228 /* qdBm: +0 +1 +2 +3 +4 +5 +6 +7 */
229 /* 153: */ 6683, 7079, 7499, 7943, 8414, 8913, 9441, 10000,
230 /* 161: */ 10593, 11220, 11885, 12589, 13335, 14125, 14962, 15849,
231 /* 169: */ 16788, 17783, 18836, 19953, 21135, 22387, 23714, 25119,
232 /* 177: */ 26607, 28184, 29854, 31623, 33497, 35481, 37584, 39811,
233 /* 185: */ 42170, 44668, 47315, 50119, 53088, 56234, 59566, 63096
234 };
235
236 static u16 brcmf_qdbm_to_mw(u8 qdbm)
237 {
238 uint factor = 1;
239 int idx = qdbm - QDBM_OFFSET;
240
241 if (idx >= QDBM_TABLE_LEN)
242 /* clamp to max u16 mW value */
243 return 0xFFFF;
244
245 /* scale the qdBm index up to the range of the table 0-40
246 * where an offset of 40 qdBm equals a factor of 10 mW.
247 */
248 while (idx < 0) {
249 idx += 40;
250 factor *= 10;
251 }
252
253 /* return the mW value scaled down to the correct factor of 10,
254 * adding in factor/2 to get proper rounding.
255 */
256 return (nqdBm_to_mW_map[idx] + factor / 2) / factor;
257 }
258
259 static u8 brcmf_mw_to_qdbm(u16 mw)
260 {
261 u8 qdbm;
262 int offset;
263 uint mw_uint = mw;
264 uint boundary;
265
266 /* handle boundary case */
267 if (mw_uint <= 1)
268 return 0;
269
270 offset = QDBM_OFFSET;
271
272 /* move mw into the range of the table */
273 while (mw_uint < QDBM_TABLE_LOW_BOUND) {
274 mw_uint *= 10;
275 offset -= 40;
276 }
277
278 for (qdbm = 0; qdbm < QDBM_TABLE_LEN - 1; qdbm++) {
279 boundary = nqdBm_to_mW_map[qdbm] + (nqdBm_to_mW_map[qdbm + 1] -
280 nqdBm_to_mW_map[qdbm]) / 2;
281 if (mw_uint < boundary)
282 break;
283 }
284
285 qdbm += (u8) offset;
286
287 return qdbm;
288 }
289
290 static u16 chandef_to_chanspec(struct brcmu_d11inf *d11inf,
291 struct cfg80211_chan_def *ch)
292 {
293 struct brcmu_chan ch_inf;
294 s32 primary_offset;
295
296 brcmf_dbg(TRACE, "chandef: control %d center %d width %d\n",
297 ch->chan->center_freq, ch->center_freq1, ch->width);
298 ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq1);
299 primary_offset = ch->center_freq1 - ch->chan->center_freq;
300 switch (ch->width) {
301 case NL80211_CHAN_WIDTH_20:
302 ch_inf.bw = BRCMU_CHAN_BW_20;
303 WARN_ON(primary_offset != 0);
304 break;
305 case NL80211_CHAN_WIDTH_40:
306 ch_inf.bw = BRCMU_CHAN_BW_40;
307 if (primary_offset < 0)
308 ch_inf.sb = BRCMU_CHAN_SB_U;
309 else
310 ch_inf.sb = BRCMU_CHAN_SB_L;
311 break;
312 case NL80211_CHAN_WIDTH_80:
313 ch_inf.bw = BRCMU_CHAN_BW_80;
314 if (primary_offset < 0) {
315 if (primary_offset < -CH_10MHZ_APART)
316 ch_inf.sb = BRCMU_CHAN_SB_UU;
317 else
318 ch_inf.sb = BRCMU_CHAN_SB_UL;
319 } else {
320 if (primary_offset > CH_10MHZ_APART)
321 ch_inf.sb = BRCMU_CHAN_SB_LL;
322 else
323 ch_inf.sb = BRCMU_CHAN_SB_LU;
324 }
325 break;
326 default:
327 WARN_ON_ONCE(1);
328 }
329 switch (ch->chan->band) {
330 case IEEE80211_BAND_2GHZ:
331 ch_inf.band = BRCMU_CHAN_BAND_2G;
332 break;
333 case IEEE80211_BAND_5GHZ:
334 ch_inf.band = BRCMU_CHAN_BAND_5G;
335 break;
336 default:
337 WARN_ON_ONCE(1);
338 }
339 d11inf->encchspec(&ch_inf);
340
341 return ch_inf.chspec;
342 }
343
344 u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
345 struct ieee80211_channel *ch)
346 {
347 struct brcmu_chan ch_inf;
348
349 ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq);
350 ch_inf.bw = BRCMU_CHAN_BW_20;
351 d11inf->encchspec(&ch_inf);
352
353 return ch_inf.chspec;
354 }
355
356 /* Traverse a string of 1-byte tag/1-byte length/variable-length value
357 * triples, returning a pointer to the substring whose first element
358 * matches tag
359 */
360 const struct brcmf_tlv *
361 brcmf_parse_tlvs(const void *buf, int buflen, uint key)
362 {
363 const struct brcmf_tlv *elt = buf;
364 int totlen = buflen;
365
366 /* find tagged parameter */
367 while (totlen >= TLV_HDR_LEN) {
368 int len = elt->len;
369
370 /* validate remaining totlen */
371 if ((elt->id == key) && (totlen >= (len + TLV_HDR_LEN)))
372 return elt;
373
374 elt = (struct brcmf_tlv *)((u8 *)elt + (len + TLV_HDR_LEN));
375 totlen -= (len + TLV_HDR_LEN);
376 }
377
378 return NULL;
379 }
380
381 /* Is any of the tlvs the expected entry? If
382 * not update the tlvs buffer pointer/length.
383 */
384 static bool
385 brcmf_tlv_has_ie(const u8 *ie, const u8 **tlvs, u32 *tlvs_len,
386 const u8 *oui, u32 oui_len, u8 type)
387 {
388 /* If the contents match the OUI and the type */
389 if (ie[TLV_LEN_OFF] >= oui_len + 1 &&
390 !memcmp(&ie[TLV_BODY_OFF], oui, oui_len) &&
391 type == ie[TLV_BODY_OFF + oui_len]) {
392 return true;
393 }
394
395 if (tlvs == NULL)
396 return false;
397 /* point to the next ie */
398 ie += ie[TLV_LEN_OFF] + TLV_HDR_LEN;
399 /* calculate the length of the rest of the buffer */
400 *tlvs_len -= (int)(ie - *tlvs);
401 /* update the pointer to the start of the buffer */
402 *tlvs = ie;
403
404 return false;
405 }
406
407 static struct brcmf_vs_tlv *
408 brcmf_find_wpaie(const u8 *parse, u32 len)
409 {
410 const struct brcmf_tlv *ie;
411
412 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
413 if (brcmf_tlv_has_ie((const u8 *)ie, &parse, &len,
414 WPA_OUI, TLV_OUI_LEN, WPA_OUI_TYPE))
415 return (struct brcmf_vs_tlv *)ie;
416 }
417 return NULL;
418 }
419
420 static struct brcmf_vs_tlv *
421 brcmf_find_wpsie(const u8 *parse, u32 len)
422 {
423 const struct brcmf_tlv *ie;
424
425 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
426 if (brcmf_tlv_has_ie((u8 *)ie, &parse, &len,
427 WPA_OUI, TLV_OUI_LEN, WPS_OUI_TYPE))
428 return (struct brcmf_vs_tlv *)ie;
429 }
430 return NULL;
431 }
432
433
434 static void convert_key_from_CPU(struct brcmf_wsec_key *key,
435 struct brcmf_wsec_key_le *key_le)
436 {
437 key_le->index = cpu_to_le32(key->index);
438 key_le->len = cpu_to_le32(key->len);
439 key_le->algo = cpu_to_le32(key->algo);
440 key_le->flags = cpu_to_le32(key->flags);
441 key_le->rxiv.hi = cpu_to_le32(key->rxiv.hi);
442 key_le->rxiv.lo = cpu_to_le16(key->rxiv.lo);
443 key_le->iv_initialized = cpu_to_le32(key->iv_initialized);
444 memcpy(key_le->data, key->data, sizeof(key->data));
445 memcpy(key_le->ea, key->ea, sizeof(key->ea));
446 }
447
448 static int
449 send_key_to_dongle(struct net_device *ndev, struct brcmf_wsec_key *key)
450 {
451 int err;
452 struct brcmf_wsec_key_le key_le;
453
454 convert_key_from_CPU(key, &key_le);
455
456 brcmf_netdev_wait_pend8021x(ndev);
457
458 err = brcmf_fil_bsscfg_data_set(netdev_priv(ndev), "wsec_key", &key_le,
459 sizeof(key_le));
460
461 if (err)
462 brcmf_err("wsec_key error (%d)\n", err);
463 return err;
464 }
465
466 static s32
467 brcmf_configure_arp_offload(struct brcmf_if *ifp, bool enable)
468 {
469 s32 err;
470 u32 mode;
471
472 if (enable)
473 mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY;
474 else
475 mode = 0;
476
477 /* Try to set and enable ARP offload feature, this may fail, then it */
478 /* is simply not supported and err 0 will be returned */
479 err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode);
480 if (err) {
481 brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n",
482 mode, err);
483 err = 0;
484 } else {
485 err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable);
486 if (err) {
487 brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n",
488 enable, err);
489 err = 0;
490 } else
491 brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n",
492 enable, mode);
493 }
494
495 return err;
496 }
497
498 static void
499 brcmf_cfg80211_update_proto_addr_mode(struct wireless_dev *wdev)
500 {
501 struct brcmf_cfg80211_vif *vif;
502 struct brcmf_if *ifp;
503
504 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
505 ifp = vif->ifp;
506
507 if ((wdev->iftype == NL80211_IFTYPE_ADHOC) ||
508 (wdev->iftype == NL80211_IFTYPE_AP) ||
509 (wdev->iftype == NL80211_IFTYPE_P2P_GO))
510 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
511 ADDR_DIRECT);
512 else
513 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
514 ADDR_INDIRECT);
515 }
516
517 static bool brcmf_is_apmode(struct brcmf_cfg80211_vif *vif)
518 {
519 enum nl80211_iftype iftype;
520
521 iftype = vif->wdev.iftype;
522 return iftype == NL80211_IFTYPE_AP || iftype == NL80211_IFTYPE_P2P_GO;
523 }
524
525 static bool brcmf_is_ibssmode(struct brcmf_cfg80211_vif *vif)
526 {
527 return vif->wdev.iftype == NL80211_IFTYPE_ADHOC;
528 }
529
530 static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
531 const char *name,
532 enum nl80211_iftype type,
533 u32 *flags,
534 struct vif_params *params)
535 {
536 struct wireless_dev *wdev;
537
538 brcmf_dbg(TRACE, "enter: %s type %d\n", name, type);
539 switch (type) {
540 case NL80211_IFTYPE_ADHOC:
541 case NL80211_IFTYPE_STATION:
542 case NL80211_IFTYPE_AP:
543 case NL80211_IFTYPE_AP_VLAN:
544 case NL80211_IFTYPE_WDS:
545 case NL80211_IFTYPE_MONITOR:
546 case NL80211_IFTYPE_MESH_POINT:
547 return ERR_PTR(-EOPNOTSUPP);
548 case NL80211_IFTYPE_P2P_CLIENT:
549 case NL80211_IFTYPE_P2P_GO:
550 case NL80211_IFTYPE_P2P_DEVICE:
551 wdev = brcmf_p2p_add_vif(wiphy, name, type, flags, params);
552 if (!IS_ERR(wdev))
553 brcmf_cfg80211_update_proto_addr_mode(wdev);
554 return wdev;
555 case NL80211_IFTYPE_UNSPECIFIED:
556 default:
557 return ERR_PTR(-EINVAL);
558 }
559 }
560
561 static void brcmf_scan_config_mpc(struct brcmf_if *ifp, int mpc)
562 {
563 if (brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_NEED_MPC))
564 brcmf_set_mpc(ifp, mpc);
565 }
566
567 void brcmf_set_mpc(struct brcmf_if *ifp, int mpc)
568 {
569 s32 err = 0;
570
571 if (check_vif_up(ifp->vif)) {
572 err = brcmf_fil_iovar_int_set(ifp, "mpc", mpc);
573 if (err) {
574 brcmf_err("fail to set mpc\n");
575 return;
576 }
577 brcmf_dbg(INFO, "MPC : %d\n", mpc);
578 }
579 }
580
581 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
582 struct brcmf_if *ifp, bool aborted,
583 bool fw_abort)
584 {
585 struct brcmf_scan_params_le params_le;
586 struct cfg80211_scan_request *scan_request;
587 s32 err = 0;
588
589 brcmf_dbg(SCAN, "Enter\n");
590
591 /* clear scan request, because the FW abort can cause a second call */
592 /* to this functon and might cause a double cfg80211_scan_done */
593 scan_request = cfg->scan_request;
594 cfg->scan_request = NULL;
595
596 if (timer_pending(&cfg->escan_timeout))
597 del_timer_sync(&cfg->escan_timeout);
598
599 if (fw_abort) {
600 /* Do a scan abort to stop the driver's scan engine */
601 brcmf_dbg(SCAN, "ABORT scan in firmware\n");
602 memset(&params_le, 0, sizeof(params_le));
603 memset(params_le.bssid, 0xFF, ETH_ALEN);
604 params_le.bss_type = DOT11_BSSTYPE_ANY;
605 params_le.scan_type = 0;
606 params_le.channel_num = cpu_to_le32(1);
607 params_le.nprobes = cpu_to_le32(1);
608 params_le.active_time = cpu_to_le32(-1);
609 params_le.passive_time = cpu_to_le32(-1);
610 params_le.home_time = cpu_to_le32(-1);
611 /* Scan is aborted by setting channel_list[0] to -1 */
612 params_le.channel_list[0] = cpu_to_le16(-1);
613 /* E-Scan (or anyother type) can be aborted by SCAN */
614 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
615 &params_le, sizeof(params_le));
616 if (err)
617 brcmf_err("Scan abort failed\n");
618 }
619
620 brcmf_scan_config_mpc(ifp, 1);
621
622 /*
623 * e-scan can be initiated by scheduled scan
624 * which takes precedence.
625 */
626 if (cfg->sched_escan) {
627 brcmf_dbg(SCAN, "scheduled scan completed\n");
628 cfg->sched_escan = false;
629 if (!aborted)
630 cfg80211_sched_scan_results(cfg_to_wiphy(cfg));
631 } else if (scan_request) {
632 brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n",
633 aborted ? "Aborted" : "Done");
634 cfg80211_scan_done(scan_request, aborted);
635 }
636 if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
637 brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n");
638
639 return err;
640 }
641
642 static
643 int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
644 {
645 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
646 struct net_device *ndev = wdev->netdev;
647
648 /* vif event pending in firmware */
649 if (brcmf_cfg80211_vif_event_armed(cfg))
650 return -EBUSY;
651
652 if (ndev) {
653 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status) &&
654 cfg->escan_info.ifp == netdev_priv(ndev))
655 brcmf_notify_escan_complete(cfg, netdev_priv(ndev),
656 true, true);
657
658 brcmf_fil_iovar_int_set(netdev_priv(ndev), "mpc", 1);
659 }
660
661 switch (wdev->iftype) {
662 case NL80211_IFTYPE_ADHOC:
663 case NL80211_IFTYPE_STATION:
664 case NL80211_IFTYPE_AP:
665 case NL80211_IFTYPE_AP_VLAN:
666 case NL80211_IFTYPE_WDS:
667 case NL80211_IFTYPE_MONITOR:
668 case NL80211_IFTYPE_MESH_POINT:
669 return -EOPNOTSUPP;
670 case NL80211_IFTYPE_P2P_CLIENT:
671 case NL80211_IFTYPE_P2P_GO:
672 case NL80211_IFTYPE_P2P_DEVICE:
673 return brcmf_p2p_del_vif(wiphy, wdev);
674 case NL80211_IFTYPE_UNSPECIFIED:
675 default:
676 return -EINVAL;
677 }
678 return -EOPNOTSUPP;
679 }
680
681 static s32
682 brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
683 enum nl80211_iftype type, u32 *flags,
684 struct vif_params *params)
685 {
686 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
687 struct brcmf_if *ifp = netdev_priv(ndev);
688 struct brcmf_cfg80211_vif *vif = ifp->vif;
689 s32 infra = 0;
690 s32 ap = 0;
691 s32 err = 0;
692
693 brcmf_dbg(TRACE, "Enter, ndev=%p, type=%d\n", ndev, type);
694
695 switch (type) {
696 case NL80211_IFTYPE_MONITOR:
697 case NL80211_IFTYPE_WDS:
698 brcmf_err("type (%d) : currently we do not support this type\n",
699 type);
700 return -EOPNOTSUPP;
701 case NL80211_IFTYPE_ADHOC:
702 infra = 0;
703 break;
704 case NL80211_IFTYPE_STATION:
705 /* Ignore change for p2p IF. Unclear why supplicant does this */
706 if ((vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) ||
707 (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO)) {
708 brcmf_dbg(TRACE, "Ignoring cmd for p2p if\n");
709 /* WAR: It is unexpected to get a change of VIF for P2P
710 * IF, but it happens. The request can not be handled
711 * but returning EPERM causes a crash. Returning 0
712 * without setting ieee80211_ptr->iftype causes trace
713 * (WARN_ON) but it works with wpa_supplicant
714 */
715 return 0;
716 }
717 infra = 1;
718 break;
719 case NL80211_IFTYPE_AP:
720 case NL80211_IFTYPE_P2P_GO:
721 ap = 1;
722 break;
723 default:
724 err = -EINVAL;
725 goto done;
726 }
727
728 if (ap) {
729 if (type == NL80211_IFTYPE_P2P_GO) {
730 brcmf_dbg(INFO, "IF Type = P2P GO\n");
731 err = brcmf_p2p_ifchange(cfg, BRCMF_FIL_P2P_IF_GO);
732 }
733 if (!err) {
734 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &vif->sme_state);
735 brcmf_dbg(INFO, "IF Type = AP\n");
736 }
737 } else {
738 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, infra);
739 if (err) {
740 brcmf_err("WLC_SET_INFRA error (%d)\n", err);
741 err = -EAGAIN;
742 goto done;
743 }
744 brcmf_dbg(INFO, "IF Type = %s\n", brcmf_is_ibssmode(vif) ?
745 "Adhoc" : "Infra");
746 }
747 ndev->ieee80211_ptr->iftype = type;
748
749 brcmf_cfg80211_update_proto_addr_mode(&vif->wdev);
750
751 done:
752 brcmf_dbg(TRACE, "Exit\n");
753
754 return err;
755 }
756
757 static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
758 struct brcmf_scan_params_le *params_le,
759 struct cfg80211_scan_request *request)
760 {
761 u32 n_ssids;
762 u32 n_channels;
763 s32 i;
764 s32 offset;
765 u16 chanspec;
766 char *ptr;
767 struct brcmf_ssid_le ssid_le;
768
769 memset(params_le->bssid, 0xFF, ETH_ALEN);
770 params_le->bss_type = DOT11_BSSTYPE_ANY;
771 params_le->scan_type = 0;
772 params_le->channel_num = 0;
773 params_le->nprobes = cpu_to_le32(-1);
774 params_le->active_time = cpu_to_le32(-1);
775 params_le->passive_time = cpu_to_le32(-1);
776 params_le->home_time = cpu_to_le32(-1);
777 memset(&params_le->ssid_le, 0, sizeof(params_le->ssid_le));
778
779 /* if request is null exit so it will be all channel broadcast scan */
780 if (!request)
781 return;
782
783 n_ssids = request->n_ssids;
784 n_channels = request->n_channels;
785 /* Copy channel array if applicable */
786 brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n",
787 n_channels);
788 if (n_channels > 0) {
789 for (i = 0; i < n_channels; i++) {
790 chanspec = channel_to_chanspec(&cfg->d11inf,
791 request->channels[i]);
792 brcmf_dbg(SCAN, "Chan : %d, Channel spec: %x\n",
793 request->channels[i]->hw_value, chanspec);
794 params_le->channel_list[i] = cpu_to_le16(chanspec);
795 }
796 } else {
797 brcmf_dbg(SCAN, "Scanning all channels\n");
798 }
799 /* Copy ssid array if applicable */
800 brcmf_dbg(SCAN, "### List of SSIDs to scan ### %d\n", n_ssids);
801 if (n_ssids > 0) {
802 offset = offsetof(struct brcmf_scan_params_le, channel_list) +
803 n_channels * sizeof(u16);
804 offset = roundup(offset, sizeof(u32));
805 ptr = (char *)params_le + offset;
806 for (i = 0; i < n_ssids; i++) {
807 memset(&ssid_le, 0, sizeof(ssid_le));
808 ssid_le.SSID_len =
809 cpu_to_le32(request->ssids[i].ssid_len);
810 memcpy(ssid_le.SSID, request->ssids[i].ssid,
811 request->ssids[i].ssid_len);
812 if (!ssid_le.SSID_len)
813 brcmf_dbg(SCAN, "%d: Broadcast scan\n", i);
814 else
815 brcmf_dbg(SCAN, "%d: scan for %s size =%d\n",
816 i, ssid_le.SSID, ssid_le.SSID_len);
817 memcpy(ptr, &ssid_le, sizeof(ssid_le));
818 ptr += sizeof(ssid_le);
819 }
820 } else {
821 brcmf_dbg(SCAN, "Broadcast scan %p\n", request->ssids);
822 if ((request->ssids) && request->ssids->ssid_len) {
823 brcmf_dbg(SCAN, "SSID %s len=%d\n",
824 params_le->ssid_le.SSID,
825 request->ssids->ssid_len);
826 params_le->ssid_le.SSID_len =
827 cpu_to_le32(request->ssids->ssid_len);
828 memcpy(&params_le->ssid_le.SSID, request->ssids->ssid,
829 request->ssids->ssid_len);
830 }
831 }
832 /* Adding mask to channel numbers */
833 params_le->channel_num =
834 cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) |
835 (n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK));
836 }
837
838 static s32
839 brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
840 struct cfg80211_scan_request *request, u16 action)
841 {
842 s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
843 offsetof(struct brcmf_escan_params_le, params_le);
844 struct brcmf_escan_params_le *params;
845 s32 err = 0;
846
847 brcmf_dbg(SCAN, "E-SCAN START\n");
848
849 if (request != NULL) {
850 /* Allocate space for populating ssids in struct */
851 params_size += sizeof(u32) * ((request->n_channels + 1) / 2);
852
853 /* Allocate space for populating ssids in struct */
854 params_size += sizeof(struct brcmf_ssid) * request->n_ssids;
855 }
856
857 params = kzalloc(params_size, GFP_KERNEL);
858 if (!params) {
859 err = -ENOMEM;
860 goto exit;
861 }
862 BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN);
863 brcmf_escan_prep(cfg, &params->params_le, request);
864 params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
865 params->action = cpu_to_le16(action);
866 params->sync_id = cpu_to_le16(0x1234);
867
868 err = brcmf_fil_iovar_data_set(ifp, "escan", params, params_size);
869 if (err) {
870 if (err == -EBUSY)
871 brcmf_dbg(INFO, "system busy : escan canceled\n");
872 else
873 brcmf_err("error (%d)\n", err);
874 }
875
876 kfree(params);
877 exit:
878 return err;
879 }
880
881 static s32
882 brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
883 struct brcmf_if *ifp, struct cfg80211_scan_request *request)
884 {
885 s32 err;
886 u32 passive_scan;
887 struct brcmf_scan_results *results;
888 struct escan_info *escan = &cfg->escan_info;
889
890 brcmf_dbg(SCAN, "Enter\n");
891 escan->ifp = ifp;
892 escan->wiphy = wiphy;
893 escan->escan_state = WL_ESCAN_STATE_SCANNING;
894 passive_scan = cfg->active_scan ? 0 : 1;
895 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
896 passive_scan);
897 if (err) {
898 brcmf_err("error (%d)\n", err);
899 return err;
900 }
901 brcmf_scan_config_mpc(ifp, 0);
902 results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
903 results->version = 0;
904 results->count = 0;
905 results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE;
906
907 err = escan->run(cfg, ifp, request, WL_ESCAN_ACTION_START);
908 if (err)
909 brcmf_scan_config_mpc(ifp, 1);
910 return err;
911 }
912
913 static s32
914 brcmf_cfg80211_escan(struct wiphy *wiphy, struct brcmf_cfg80211_vif *vif,
915 struct cfg80211_scan_request *request,
916 struct cfg80211_ssid *this_ssid)
917 {
918 struct brcmf_if *ifp = vif->ifp;
919 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
920 struct cfg80211_ssid *ssids;
921 struct brcmf_cfg80211_scan_req *sr = &cfg->scan_req_int;
922 u32 passive_scan;
923 bool escan_req;
924 bool spec_scan;
925 s32 err;
926 u32 SSID_len;
927
928 brcmf_dbg(SCAN, "START ESCAN\n");
929
930 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
931 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
932 return -EAGAIN;
933 }
934 if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) {
935 brcmf_err("Scanning being aborted: status (%lu)\n",
936 cfg->scan_status);
937 return -EAGAIN;
938 }
939 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
940 brcmf_err("Scanning suppressed: status (%lu)\n",
941 cfg->scan_status);
942 return -EAGAIN;
943 }
944 if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) {
945 brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state);
946 return -EAGAIN;
947 }
948
949 /* If scan req comes for p2p0, send it over primary I/F */
950 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
951 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
952
953 /* Arm scan timeout timer */
954 mod_timer(&cfg->escan_timeout, jiffies +
955 WL_ESCAN_TIMER_INTERVAL_MS * HZ / 1000);
956
957 escan_req = false;
958 if (request) {
959 /* scan bss */
960 ssids = request->ssids;
961 escan_req = true;
962 } else {
963 /* scan in ibss */
964 /* we don't do escan in ibss */
965 ssids = this_ssid;
966 }
967
968 cfg->scan_request = request;
969 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
970 if (escan_req) {
971 cfg->escan_info.run = brcmf_run_escan;
972 err = brcmf_p2p_scan_prep(wiphy, request, vif);
973 if (err)
974 goto scan_out;
975
976 err = brcmf_do_escan(cfg, wiphy, vif->ifp, request);
977 if (err)
978 goto scan_out;
979 } else {
980 brcmf_dbg(SCAN, "ssid \"%s\", ssid_len (%d)\n",
981 ssids->ssid, ssids->ssid_len);
982 memset(&sr->ssid_le, 0, sizeof(sr->ssid_le));
983 SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len);
984 sr->ssid_le.SSID_len = cpu_to_le32(0);
985 spec_scan = false;
986 if (SSID_len) {
987 memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len);
988 sr->ssid_le.SSID_len = cpu_to_le32(SSID_len);
989 spec_scan = true;
990 } else
991 brcmf_dbg(SCAN, "Broadcast scan\n");
992
993 passive_scan = cfg->active_scan ? 0 : 1;
994 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
995 passive_scan);
996 if (err) {
997 brcmf_err("WLC_SET_PASSIVE_SCAN error (%d)\n", err);
998 goto scan_out;
999 }
1000 brcmf_scan_config_mpc(ifp, 0);
1001 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
1002 &sr->ssid_le, sizeof(sr->ssid_le));
1003 if (err) {
1004 if (err == -EBUSY)
1005 brcmf_dbg(INFO, "BUSY: scan for \"%s\" canceled\n",
1006 sr->ssid_le.SSID);
1007 else
1008 brcmf_err("WLC_SCAN error (%d)\n", err);
1009
1010 brcmf_scan_config_mpc(ifp, 1);
1011 goto scan_out;
1012 }
1013 }
1014
1015 return 0;
1016
1017 scan_out:
1018 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1019 if (timer_pending(&cfg->escan_timeout))
1020 del_timer_sync(&cfg->escan_timeout);
1021 cfg->scan_request = NULL;
1022 return err;
1023 }
1024
1025 static s32
1026 brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
1027 {
1028 struct brcmf_cfg80211_vif *vif;
1029 s32 err = 0;
1030
1031 brcmf_dbg(TRACE, "Enter\n");
1032 vif = container_of(request->wdev, struct brcmf_cfg80211_vif, wdev);
1033 if (!check_vif_up(vif))
1034 return -EIO;
1035
1036 err = brcmf_cfg80211_escan(wiphy, vif, request, NULL);
1037
1038 if (err)
1039 brcmf_err("scan error (%d)\n", err);
1040
1041 brcmf_dbg(TRACE, "Exit\n");
1042 return err;
1043 }
1044
1045 static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold)
1046 {
1047 s32 err = 0;
1048
1049 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "rtsthresh",
1050 rts_threshold);
1051 if (err)
1052 brcmf_err("Error (%d)\n", err);
1053
1054 return err;
1055 }
1056
1057 static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold)
1058 {
1059 s32 err = 0;
1060
1061 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "fragthresh",
1062 frag_threshold);
1063 if (err)
1064 brcmf_err("Error (%d)\n", err);
1065
1066 return err;
1067 }
1068
1069 static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
1070 {
1071 s32 err = 0;
1072 u32 cmd = (l ? BRCMF_C_SET_LRL : BRCMF_C_SET_SRL);
1073
1074 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), cmd, retry);
1075 if (err) {
1076 brcmf_err("cmd (%d) , error (%d)\n", cmd, err);
1077 return err;
1078 }
1079 return err;
1080 }
1081
1082 static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1083 {
1084 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1085 struct net_device *ndev = cfg_to_ndev(cfg);
1086 struct brcmf_if *ifp = netdev_priv(ndev);
1087 s32 err = 0;
1088
1089 brcmf_dbg(TRACE, "Enter\n");
1090 if (!check_vif_up(ifp->vif))
1091 return -EIO;
1092
1093 if (changed & WIPHY_PARAM_RTS_THRESHOLD &&
1094 (cfg->conf->rts_threshold != wiphy->rts_threshold)) {
1095 cfg->conf->rts_threshold = wiphy->rts_threshold;
1096 err = brcmf_set_rts(ndev, cfg->conf->rts_threshold);
1097 if (!err)
1098 goto done;
1099 }
1100 if (changed & WIPHY_PARAM_FRAG_THRESHOLD &&
1101 (cfg->conf->frag_threshold != wiphy->frag_threshold)) {
1102 cfg->conf->frag_threshold = wiphy->frag_threshold;
1103 err = brcmf_set_frag(ndev, cfg->conf->frag_threshold);
1104 if (!err)
1105 goto done;
1106 }
1107 if (changed & WIPHY_PARAM_RETRY_LONG
1108 && (cfg->conf->retry_long != wiphy->retry_long)) {
1109 cfg->conf->retry_long = wiphy->retry_long;
1110 err = brcmf_set_retry(ndev, cfg->conf->retry_long, true);
1111 if (!err)
1112 goto done;
1113 }
1114 if (changed & WIPHY_PARAM_RETRY_SHORT
1115 && (cfg->conf->retry_short != wiphy->retry_short)) {
1116 cfg->conf->retry_short = wiphy->retry_short;
1117 err = brcmf_set_retry(ndev, cfg->conf->retry_short, false);
1118 if (!err)
1119 goto done;
1120 }
1121
1122 done:
1123 brcmf_dbg(TRACE, "Exit\n");
1124 return err;
1125 }
1126
1127 static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof)
1128 {
1129 memset(prof, 0, sizeof(*prof));
1130 }
1131
1132 static void brcmf_link_down(struct brcmf_cfg80211_vif *vif)
1133 {
1134 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy);
1135 s32 err = 0;
1136
1137 brcmf_dbg(TRACE, "Enter\n");
1138
1139 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state)) {
1140 brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n ");
1141 err = brcmf_fil_cmd_data_set(vif->ifp,
1142 BRCMF_C_DISASSOC, NULL, 0);
1143 if (err) {
1144 brcmf_err("WLC_DISASSOC failed (%d)\n", err);
1145 }
1146 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state);
1147 cfg80211_disconnected(vif->wdev.netdev, 0, NULL, 0, GFP_KERNEL);
1148
1149 }
1150 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state);
1151 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
1152 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
1153 brcmf_dbg(TRACE, "Exit\n");
1154 }
1155
1156 static s32
1157 brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
1158 struct cfg80211_ibss_params *params)
1159 {
1160 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1161 struct brcmf_if *ifp = netdev_priv(ndev);
1162 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1163 struct brcmf_join_params join_params;
1164 size_t join_params_size = 0;
1165 s32 err = 0;
1166 s32 wsec = 0;
1167 s32 bcnprd;
1168 u16 chanspec;
1169
1170 brcmf_dbg(TRACE, "Enter\n");
1171 if (!check_vif_up(ifp->vif))
1172 return -EIO;
1173
1174 if (params->ssid)
1175 brcmf_dbg(CONN, "SSID: %s\n", params->ssid);
1176 else {
1177 brcmf_dbg(CONN, "SSID: NULL, Not supported\n");
1178 return -EOPNOTSUPP;
1179 }
1180
1181 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1182
1183 if (params->bssid)
1184 brcmf_dbg(CONN, "BSSID: %pM\n", params->bssid);
1185 else
1186 brcmf_dbg(CONN, "No BSSID specified\n");
1187
1188 if (params->chandef.chan)
1189 brcmf_dbg(CONN, "channel: %d\n",
1190 params->chandef.chan->center_freq);
1191 else
1192 brcmf_dbg(CONN, "no channel specified\n");
1193
1194 if (params->channel_fixed)
1195 brcmf_dbg(CONN, "fixed channel required\n");
1196 else
1197 brcmf_dbg(CONN, "no fixed channel required\n");
1198
1199 if (params->ie && params->ie_len)
1200 brcmf_dbg(CONN, "ie len: %d\n", params->ie_len);
1201 else
1202 brcmf_dbg(CONN, "no ie specified\n");
1203
1204 if (params->beacon_interval)
1205 brcmf_dbg(CONN, "beacon interval: %d\n",
1206 params->beacon_interval);
1207 else
1208 brcmf_dbg(CONN, "no beacon interval specified\n");
1209
1210 if (params->basic_rates)
1211 brcmf_dbg(CONN, "basic rates: %08X\n", params->basic_rates);
1212 else
1213 brcmf_dbg(CONN, "no basic rates specified\n");
1214
1215 if (params->privacy)
1216 brcmf_dbg(CONN, "privacy required\n");
1217 else
1218 brcmf_dbg(CONN, "no privacy required\n");
1219
1220 /* Configure Privacy for starter */
1221 if (params->privacy)
1222 wsec |= WEP_ENABLED;
1223
1224 err = brcmf_fil_iovar_int_set(ifp, "wsec", wsec);
1225 if (err) {
1226 brcmf_err("wsec failed (%d)\n", err);
1227 goto done;
1228 }
1229
1230 /* Configure Beacon Interval for starter */
1231 if (params->beacon_interval)
1232 bcnprd = params->beacon_interval;
1233 else
1234 bcnprd = 100;
1235
1236 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, bcnprd);
1237 if (err) {
1238 brcmf_err("WLC_SET_BCNPRD failed (%d)\n", err);
1239 goto done;
1240 }
1241
1242 /* Configure required join parameter */
1243 memset(&join_params, 0, sizeof(struct brcmf_join_params));
1244
1245 /* SSID */
1246 profile->ssid.SSID_len = min_t(u32, params->ssid_len, 32);
1247 memcpy(profile->ssid.SSID, params->ssid, profile->ssid.SSID_len);
1248 memcpy(join_params.ssid_le.SSID, params->ssid, profile->ssid.SSID_len);
1249 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1250 join_params_size = sizeof(join_params.ssid_le);
1251
1252 /* BSSID */
1253 if (params->bssid) {
1254 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN);
1255 join_params_size = sizeof(join_params.ssid_le) +
1256 BRCMF_ASSOC_PARAMS_FIXED_SIZE;
1257 memcpy(profile->bssid, params->bssid, ETH_ALEN);
1258 } else {
1259 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1260 memset(profile->bssid, 0, ETH_ALEN);
1261 }
1262
1263 /* Channel */
1264 if (params->chandef.chan) {
1265 u32 target_channel;
1266
1267 cfg->channel =
1268 ieee80211_frequency_to_channel(
1269 params->chandef.chan->center_freq);
1270 if (params->channel_fixed) {
1271 /* adding chanspec */
1272 chanspec = chandef_to_chanspec(&cfg->d11inf,
1273 &params->chandef);
1274 join_params.params_le.chanspec_list[0] =
1275 cpu_to_le16(chanspec);
1276 join_params.params_le.chanspec_num = cpu_to_le32(1);
1277 join_params_size += sizeof(join_params.params_le);
1278 }
1279
1280 /* set channel for starter */
1281 target_channel = cfg->channel;
1282 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_CHANNEL,
1283 target_channel);
1284 if (err) {
1285 brcmf_err("WLC_SET_CHANNEL failed (%d)\n", err);
1286 goto done;
1287 }
1288 } else
1289 cfg->channel = 0;
1290
1291 cfg->ibss_starter = false;
1292
1293
1294 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1295 &join_params, join_params_size);
1296 if (err) {
1297 brcmf_err("WLC_SET_SSID failed (%d)\n", err);
1298 goto done;
1299 }
1300
1301 done:
1302 if (err)
1303 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1304 brcmf_dbg(TRACE, "Exit\n");
1305 return err;
1306 }
1307
1308 static s32
1309 brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
1310 {
1311 struct brcmf_if *ifp = netdev_priv(ndev);
1312
1313 brcmf_dbg(TRACE, "Enter\n");
1314 if (!check_vif_up(ifp->vif))
1315 return -EIO;
1316
1317 brcmf_link_down(ifp->vif);
1318
1319 brcmf_dbg(TRACE, "Exit\n");
1320
1321 return 0;
1322 }
1323
1324 static s32 brcmf_set_wpa_version(struct net_device *ndev,
1325 struct cfg80211_connect_params *sme)
1326 {
1327 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1328 struct brcmf_cfg80211_security *sec;
1329 s32 val = 0;
1330 s32 err = 0;
1331
1332 if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1)
1333 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED;
1334 else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)
1335 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED;
1336 else
1337 val = WPA_AUTH_DISABLED;
1338 brcmf_dbg(CONN, "setting wpa_auth to 0x%0x\n", val);
1339 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val);
1340 if (err) {
1341 brcmf_err("set wpa_auth failed (%d)\n", err);
1342 return err;
1343 }
1344 sec = &profile->sec;
1345 sec->wpa_versions = sme->crypto.wpa_versions;
1346 return err;
1347 }
1348
1349 static s32 brcmf_set_auth_type(struct net_device *ndev,
1350 struct cfg80211_connect_params *sme)
1351 {
1352 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1353 struct brcmf_cfg80211_security *sec;
1354 s32 val = 0;
1355 s32 err = 0;
1356
1357 switch (sme->auth_type) {
1358 case NL80211_AUTHTYPE_OPEN_SYSTEM:
1359 val = 0;
1360 brcmf_dbg(CONN, "open system\n");
1361 break;
1362 case NL80211_AUTHTYPE_SHARED_KEY:
1363 val = 1;
1364 brcmf_dbg(CONN, "shared key\n");
1365 break;
1366 case NL80211_AUTHTYPE_AUTOMATIC:
1367 val = 2;
1368 brcmf_dbg(CONN, "automatic\n");
1369 break;
1370 case NL80211_AUTHTYPE_NETWORK_EAP:
1371 brcmf_dbg(CONN, "network eap\n");
1372 default:
1373 val = 2;
1374 brcmf_err("invalid auth type (%d)\n", sme->auth_type);
1375 break;
1376 }
1377
1378 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1379 if (err) {
1380 brcmf_err("set auth failed (%d)\n", err);
1381 return err;
1382 }
1383 sec = &profile->sec;
1384 sec->auth_type = sme->auth_type;
1385 return err;
1386 }
1387
1388 static s32
1389 brcmf_set_wsec_mode(struct net_device *ndev,
1390 struct cfg80211_connect_params *sme, bool mfp)
1391 {
1392 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1393 struct brcmf_cfg80211_security *sec;
1394 s32 pval = 0;
1395 s32 gval = 0;
1396 s32 wsec;
1397 s32 err = 0;
1398
1399 if (sme->crypto.n_ciphers_pairwise) {
1400 switch (sme->crypto.ciphers_pairwise[0]) {
1401 case WLAN_CIPHER_SUITE_WEP40:
1402 case WLAN_CIPHER_SUITE_WEP104:
1403 pval = WEP_ENABLED;
1404 break;
1405 case WLAN_CIPHER_SUITE_TKIP:
1406 pval = TKIP_ENABLED;
1407 break;
1408 case WLAN_CIPHER_SUITE_CCMP:
1409 pval = AES_ENABLED;
1410 break;
1411 case WLAN_CIPHER_SUITE_AES_CMAC:
1412 pval = AES_ENABLED;
1413 break;
1414 default:
1415 brcmf_err("invalid cipher pairwise (%d)\n",
1416 sme->crypto.ciphers_pairwise[0]);
1417 return -EINVAL;
1418 }
1419 }
1420 if (sme->crypto.cipher_group) {
1421 switch (sme->crypto.cipher_group) {
1422 case WLAN_CIPHER_SUITE_WEP40:
1423 case WLAN_CIPHER_SUITE_WEP104:
1424 gval = WEP_ENABLED;
1425 break;
1426 case WLAN_CIPHER_SUITE_TKIP:
1427 gval = TKIP_ENABLED;
1428 break;
1429 case WLAN_CIPHER_SUITE_CCMP:
1430 gval = AES_ENABLED;
1431 break;
1432 case WLAN_CIPHER_SUITE_AES_CMAC:
1433 gval = AES_ENABLED;
1434 break;
1435 default:
1436 brcmf_err("invalid cipher group (%d)\n",
1437 sme->crypto.cipher_group);
1438 return -EINVAL;
1439 }
1440 }
1441
1442 brcmf_dbg(CONN, "pval (%d) gval (%d)\n", pval, gval);
1443 /* In case of privacy, but no security and WPS then simulate */
1444 /* setting AES. WPS-2.0 allows no security */
1445 if (brcmf_find_wpsie(sme->ie, sme->ie_len) && !pval && !gval &&
1446 sme->privacy)
1447 pval = AES_ENABLED;
1448
1449 if (mfp)
1450 wsec = pval | gval | MFP_CAPABLE;
1451 else
1452 wsec = pval | gval;
1453 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wsec", wsec);
1454 if (err) {
1455 brcmf_err("error (%d)\n", err);
1456 return err;
1457 }
1458
1459 sec = &profile->sec;
1460 sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0];
1461 sec->cipher_group = sme->crypto.cipher_group;
1462
1463 return err;
1464 }
1465
1466 static s32
1467 brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
1468 {
1469 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1470 struct brcmf_cfg80211_security *sec;
1471 s32 val = 0;
1472 s32 err = 0;
1473
1474 if (sme->crypto.n_akm_suites) {
1475 err = brcmf_fil_bsscfg_int_get(netdev_priv(ndev),
1476 "wpa_auth", &val);
1477 if (err) {
1478 brcmf_err("could not get wpa_auth (%d)\n", err);
1479 return err;
1480 }
1481 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) {
1482 switch (sme->crypto.akm_suites[0]) {
1483 case WLAN_AKM_SUITE_8021X:
1484 val = WPA_AUTH_UNSPECIFIED;
1485 break;
1486 case WLAN_AKM_SUITE_PSK:
1487 val = WPA_AUTH_PSK;
1488 break;
1489 default:
1490 brcmf_err("invalid cipher group (%d)\n",
1491 sme->crypto.cipher_group);
1492 return -EINVAL;
1493 }
1494 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) {
1495 switch (sme->crypto.akm_suites[0]) {
1496 case WLAN_AKM_SUITE_8021X:
1497 val = WPA2_AUTH_UNSPECIFIED;
1498 break;
1499 case WLAN_AKM_SUITE_PSK:
1500 val = WPA2_AUTH_PSK;
1501 break;
1502 default:
1503 brcmf_err("invalid cipher group (%d)\n",
1504 sme->crypto.cipher_group);
1505 return -EINVAL;
1506 }
1507 }
1508
1509 brcmf_dbg(CONN, "setting wpa_auth to %d\n", val);
1510 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev),
1511 "wpa_auth", val);
1512 if (err) {
1513 brcmf_err("could not set wpa_auth (%d)\n", err);
1514 return err;
1515 }
1516 }
1517 sec = &profile->sec;
1518 sec->wpa_auth = sme->crypto.akm_suites[0];
1519
1520 return err;
1521 }
1522
1523 static s32
1524 brcmf_set_sharedkey(struct net_device *ndev,
1525 struct cfg80211_connect_params *sme)
1526 {
1527 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1528 struct brcmf_cfg80211_security *sec;
1529 struct brcmf_wsec_key key;
1530 s32 val;
1531 s32 err = 0;
1532
1533 brcmf_dbg(CONN, "key len (%d)\n", sme->key_len);
1534
1535 if (sme->key_len == 0)
1536 return 0;
1537
1538 sec = &profile->sec;
1539 brcmf_dbg(CONN, "wpa_versions 0x%x cipher_pairwise 0x%x\n",
1540 sec->wpa_versions, sec->cipher_pairwise);
1541
1542 if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2))
1543 return 0;
1544
1545 if (!(sec->cipher_pairwise &
1546 (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)))
1547 return 0;
1548
1549 memset(&key, 0, sizeof(key));
1550 key.len = (u32) sme->key_len;
1551 key.index = (u32) sme->key_idx;
1552 if (key.len > sizeof(key.data)) {
1553 brcmf_err("Too long key length (%u)\n", key.len);
1554 return -EINVAL;
1555 }
1556 memcpy(key.data, sme->key, key.len);
1557 key.flags = BRCMF_PRIMARY_KEY;
1558 switch (sec->cipher_pairwise) {
1559 case WLAN_CIPHER_SUITE_WEP40:
1560 key.algo = CRYPTO_ALGO_WEP1;
1561 break;
1562 case WLAN_CIPHER_SUITE_WEP104:
1563 key.algo = CRYPTO_ALGO_WEP128;
1564 break;
1565 default:
1566 brcmf_err("Invalid algorithm (%d)\n",
1567 sme->crypto.ciphers_pairwise[0]);
1568 return -EINVAL;
1569 }
1570 /* Set the new key/index */
1571 brcmf_dbg(CONN, "key length (%d) key index (%d) algo (%d)\n",
1572 key.len, key.index, key.algo);
1573 brcmf_dbg(CONN, "key \"%s\"\n", key.data);
1574 err = send_key_to_dongle(ndev, &key);
1575 if (err)
1576 return err;
1577
1578 if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) {
1579 brcmf_dbg(CONN, "set auth_type to shared key\n");
1580 val = WL_AUTH_SHARED_KEY; /* shared key */
1581 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1582 if (err)
1583 brcmf_err("set auth failed (%d)\n", err);
1584 }
1585 return err;
1586 }
1587
1588 static
1589 enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp,
1590 enum nl80211_auth_type type)
1591 {
1592 if (type == NL80211_AUTHTYPE_AUTOMATIC &&
1593 brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_AUTO_AUTH)) {
1594 brcmf_dbg(CONN, "WAR: use OPEN instead of AUTO\n");
1595 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1596 }
1597 return type;
1598 }
1599
1600 static s32
1601 brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
1602 struct cfg80211_connect_params *sme)
1603 {
1604 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1605 struct brcmf_if *ifp = netdev_priv(ndev);
1606 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1607 struct ieee80211_channel *chan = sme->channel;
1608 struct brcmf_join_params join_params;
1609 size_t join_params_size;
1610 const struct brcmf_tlv *rsn_ie;
1611 const struct brcmf_vs_tlv *wpa_ie;
1612 const void *ie;
1613 u32 ie_len;
1614 struct brcmf_ext_join_params_le *ext_join_params;
1615 u16 chanspec;
1616 s32 err = 0;
1617
1618 brcmf_dbg(TRACE, "Enter\n");
1619 if (!check_vif_up(ifp->vif))
1620 return -EIO;
1621
1622 if (!sme->ssid) {
1623 brcmf_err("Invalid ssid\n");
1624 return -EOPNOTSUPP;
1625 }
1626
1627 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) {
1628 /* A normal (non P2P) connection request setup. */
1629 ie = NULL;
1630 ie_len = 0;
1631 /* find the WPA_IE */
1632 wpa_ie = brcmf_find_wpaie((u8 *)sme->ie, sme->ie_len);
1633 if (wpa_ie) {
1634 ie = wpa_ie;
1635 ie_len = wpa_ie->len + TLV_HDR_LEN;
1636 } else {
1637 /* find the RSN_IE */
1638 rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie,
1639 sme->ie_len,
1640 WLAN_EID_RSN);
1641 if (rsn_ie) {
1642 ie = rsn_ie;
1643 ie_len = rsn_ie->len + TLV_HDR_LEN;
1644 }
1645 }
1646 brcmf_fil_iovar_data_set(ifp, "wpaie", ie, ie_len);
1647 }
1648
1649 err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG,
1650 sme->ie, sme->ie_len);
1651 if (err)
1652 brcmf_err("Set Assoc REQ IE Failed\n");
1653 else
1654 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n");
1655
1656 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1657
1658 if (chan) {
1659 cfg->channel =
1660 ieee80211_frequency_to_channel(chan->center_freq);
1661 chanspec = channel_to_chanspec(&cfg->d11inf, chan);
1662 brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n",
1663 cfg->channel, chan->center_freq, chanspec);
1664 } else {
1665 cfg->channel = 0;
1666 chanspec = 0;
1667 }
1668
1669 brcmf_dbg(INFO, "ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len);
1670
1671 err = brcmf_set_wpa_version(ndev, sme);
1672 if (err) {
1673 brcmf_err("wl_set_wpa_version failed (%d)\n", err);
1674 goto done;
1675 }
1676
1677 sme->auth_type = brcmf_war_auth_type(ifp, sme->auth_type);
1678 err = brcmf_set_auth_type(ndev, sme);
1679 if (err) {
1680 brcmf_err("wl_set_auth_type failed (%d)\n", err);
1681 goto done;
1682 }
1683
1684 err = brcmf_set_wsec_mode(ndev, sme, sme->mfp == NL80211_MFP_REQUIRED);
1685 if (err) {
1686 brcmf_err("wl_set_set_cipher failed (%d)\n", err);
1687 goto done;
1688 }
1689
1690 err = brcmf_set_key_mgmt(ndev, sme);
1691 if (err) {
1692 brcmf_err("wl_set_key_mgmt failed (%d)\n", err);
1693 goto done;
1694 }
1695
1696 err = brcmf_set_sharedkey(ndev, sme);
1697 if (err) {
1698 brcmf_err("brcmf_set_sharedkey failed (%d)\n", err);
1699 goto done;
1700 }
1701
1702 profile->ssid.SSID_len = min_t(u32, (u32)sizeof(profile->ssid.SSID),
1703 (u32)sme->ssid_len);
1704 memcpy(&profile->ssid.SSID, sme->ssid, profile->ssid.SSID_len);
1705 if (profile->ssid.SSID_len < IEEE80211_MAX_SSID_LEN) {
1706 profile->ssid.SSID[profile->ssid.SSID_len] = 0;
1707 brcmf_dbg(CONN, "SSID \"%s\", len (%d)\n", profile->ssid.SSID,
1708 profile->ssid.SSID_len);
1709 }
1710
1711 /* Join with specific BSSID and cached SSID
1712 * If SSID is zero join based on BSSID only
1713 */
1714 join_params_size = offsetof(struct brcmf_ext_join_params_le, assoc_le) +
1715 offsetof(struct brcmf_assoc_params_le, chanspec_list);
1716 if (cfg->channel)
1717 join_params_size += sizeof(u16);
1718 ext_join_params = kzalloc(join_params_size, GFP_KERNEL);
1719 if (ext_join_params == NULL) {
1720 err = -ENOMEM;
1721 goto done;
1722 }
1723 ext_join_params->ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1724 memcpy(&ext_join_params->ssid_le.SSID, sme->ssid,
1725 profile->ssid.SSID_len);
1726
1727 /* Set up join scan parameters */
1728 ext_join_params->scan_le.scan_type = -1;
1729 ext_join_params->scan_le.home_time = cpu_to_le32(-1);
1730
1731 if (sme->bssid)
1732 memcpy(&ext_join_params->assoc_le.bssid, sme->bssid, ETH_ALEN);
1733 else
1734 memset(&ext_join_params->assoc_le.bssid, 0xFF, ETH_ALEN);
1735
1736 if (cfg->channel) {
1737 ext_join_params->assoc_le.chanspec_num = cpu_to_le32(1);
1738
1739 ext_join_params->assoc_le.chanspec_list[0] =
1740 cpu_to_le16(chanspec);
1741 /* Increase dwell time to receive probe response or detect
1742 * beacon from target AP at a noisy air only during connect
1743 * command.
1744 */
1745 ext_join_params->scan_le.active_time =
1746 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS);
1747 ext_join_params->scan_le.passive_time =
1748 cpu_to_le32(BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS);
1749 /* To sync with presence period of VSDB GO send probe request
1750 * more frequently. Probe request will be stopped when it gets
1751 * probe response from target AP/GO.
1752 */
1753 ext_join_params->scan_le.nprobes =
1754 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS /
1755 BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS);
1756 } else {
1757 ext_join_params->scan_le.active_time = cpu_to_le32(-1);
1758 ext_join_params->scan_le.passive_time = cpu_to_le32(-1);
1759 ext_join_params->scan_le.nprobes = cpu_to_le32(-1);
1760 }
1761
1762 err = brcmf_fil_bsscfg_data_set(ifp, "join", ext_join_params,
1763 join_params_size);
1764 kfree(ext_join_params);
1765 if (!err)
1766 /* This is it. join command worked, we are done */
1767 goto done;
1768
1769 /* join command failed, fallback to set ssid */
1770 memset(&join_params, 0, sizeof(join_params));
1771 join_params_size = sizeof(join_params.ssid_le);
1772
1773 memcpy(&join_params.ssid_le.SSID, sme->ssid, profile->ssid.SSID_len);
1774 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1775
1776 if (sme->bssid)
1777 memcpy(join_params.params_le.bssid, sme->bssid, ETH_ALEN);
1778 else
1779 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1780
1781 if (cfg->channel) {
1782 join_params.params_le.chanspec_list[0] = cpu_to_le16(chanspec);
1783 join_params.params_le.chanspec_num = cpu_to_le32(1);
1784 join_params_size += sizeof(join_params.params_le);
1785 }
1786 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1787 &join_params, join_params_size);
1788 if (err)
1789 brcmf_err("BRCMF_C_SET_SSID failed (%d)\n", err);
1790
1791 done:
1792 if (err)
1793 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1794 brcmf_dbg(TRACE, "Exit\n");
1795 return err;
1796 }
1797
1798 static s32
1799 brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
1800 u16 reason_code)
1801 {
1802 struct brcmf_if *ifp = netdev_priv(ndev);
1803 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1804 struct brcmf_scb_val_le scbval;
1805 s32 err = 0;
1806
1807 brcmf_dbg(TRACE, "Enter. Reason code = %d\n", reason_code);
1808 if (!check_vif_up(ifp->vif))
1809 return -EIO;
1810
1811 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
1812 cfg80211_disconnected(ndev, reason_code, NULL, 0, GFP_KERNEL);
1813
1814 memcpy(&scbval.ea, &profile->bssid, ETH_ALEN);
1815 scbval.val = cpu_to_le32(reason_code);
1816 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC,
1817 &scbval, sizeof(scbval));
1818 if (err)
1819 brcmf_err("error (%d)\n", err);
1820
1821 brcmf_dbg(TRACE, "Exit\n");
1822 return err;
1823 }
1824
1825 static s32
1826 brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
1827 enum nl80211_tx_power_setting type, s32 mbm)
1828 {
1829
1830 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1831 struct net_device *ndev = cfg_to_ndev(cfg);
1832 struct brcmf_if *ifp = netdev_priv(ndev);
1833 u16 txpwrmw;
1834 s32 err = 0;
1835 s32 disable = 0;
1836 s32 dbm = MBM_TO_DBM(mbm);
1837
1838 brcmf_dbg(TRACE, "Enter\n");
1839 if (!check_vif_up(ifp->vif))
1840 return -EIO;
1841
1842 switch (type) {
1843 case NL80211_TX_POWER_AUTOMATIC:
1844 break;
1845 case NL80211_TX_POWER_LIMITED:
1846 case NL80211_TX_POWER_FIXED:
1847 if (dbm < 0) {
1848 brcmf_err("TX_POWER_FIXED - dbm is negative\n");
1849 err = -EINVAL;
1850 goto done;
1851 }
1852 break;
1853 }
1854 /* Make sure radio is off or on as far as software is concerned */
1855 disable = WL_RADIO_SW_DISABLE << 16;
1856 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable);
1857 if (err)
1858 brcmf_err("WLC_SET_RADIO error (%d)\n", err);
1859
1860 if (dbm > 0xffff)
1861 txpwrmw = 0xffff;
1862 else
1863 txpwrmw = (u16) dbm;
1864 err = brcmf_fil_iovar_int_set(ifp, "qtxpower",
1865 (s32)brcmf_mw_to_qdbm(txpwrmw));
1866 if (err)
1867 brcmf_err("qtxpower error (%d)\n", err);
1868 cfg->conf->tx_power = dbm;
1869
1870 done:
1871 brcmf_dbg(TRACE, "Exit\n");
1872 return err;
1873 }
1874
1875 static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy,
1876 struct wireless_dev *wdev,
1877 s32 *dbm)
1878 {
1879 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1880 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
1881 s32 txpwrdbm;
1882 u8 result;
1883 s32 err = 0;
1884
1885 brcmf_dbg(TRACE, "Enter\n");
1886 if (!check_vif_up(ifp->vif))
1887 return -EIO;
1888
1889 err = brcmf_fil_iovar_int_get(ifp, "qtxpower", &txpwrdbm);
1890 if (err) {
1891 brcmf_err("error (%d)\n", err);
1892 goto done;
1893 }
1894
1895 result = (u8) (txpwrdbm & ~WL_TXPWR_OVERRIDE);
1896 *dbm = (s32) brcmf_qdbm_to_mw(result);
1897
1898 done:
1899 brcmf_dbg(TRACE, "Exit\n");
1900 return err;
1901 }
1902
1903 static s32
1904 brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev,
1905 u8 key_idx, bool unicast, bool multicast)
1906 {
1907 struct brcmf_if *ifp = netdev_priv(ndev);
1908 u32 index;
1909 u32 wsec;
1910 s32 err = 0;
1911
1912 brcmf_dbg(TRACE, "Enter\n");
1913 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
1914 if (!check_vif_up(ifp->vif))
1915 return -EIO;
1916
1917 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
1918 if (err) {
1919 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
1920 goto done;
1921 }
1922
1923 if (wsec & WEP_ENABLED) {
1924 /* Just select a new current key */
1925 index = key_idx;
1926 err = brcmf_fil_cmd_int_set(ifp,
1927 BRCMF_C_SET_KEY_PRIMARY, index);
1928 if (err)
1929 brcmf_err("error (%d)\n", err);
1930 }
1931 done:
1932 brcmf_dbg(TRACE, "Exit\n");
1933 return err;
1934 }
1935
1936 static s32
1937 brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev,
1938 u8 key_idx, const u8 *mac_addr, struct key_params *params)
1939 {
1940 struct brcmf_if *ifp = netdev_priv(ndev);
1941 struct brcmf_wsec_key key;
1942 s32 err = 0;
1943 u8 keybuf[8];
1944
1945 memset(&key, 0, sizeof(key));
1946 key.index = (u32) key_idx;
1947 /* Instead of bcast for ea address for default wep keys,
1948 driver needs it to be Null */
1949 if (!is_multicast_ether_addr(mac_addr))
1950 memcpy((char *)&key.ea, (void *)mac_addr, ETH_ALEN);
1951 key.len = (u32) params->key_len;
1952 /* check for key index change */
1953 if (key.len == 0) {
1954 /* key delete */
1955 err = send_key_to_dongle(ndev, &key);
1956 if (err)
1957 brcmf_err("key delete error (%d)\n", err);
1958 } else {
1959 if (key.len > sizeof(key.data)) {
1960 brcmf_err("Invalid key length (%d)\n", key.len);
1961 return -EINVAL;
1962 }
1963
1964 brcmf_dbg(CONN, "Setting the key index %d\n", key.index);
1965 memcpy(key.data, params->key, key.len);
1966
1967 if (!brcmf_is_apmode(ifp->vif) &&
1968 (params->cipher == WLAN_CIPHER_SUITE_TKIP)) {
1969 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
1970 memcpy(keybuf, &key.data[24], sizeof(keybuf));
1971 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
1972 memcpy(&key.data[16], keybuf, sizeof(keybuf));
1973 }
1974
1975 /* if IW_ENCODE_EXT_RX_SEQ_VALID set */
1976 if (params->seq && params->seq_len == 6) {
1977 /* rx iv */
1978 u8 *ivptr;
1979 ivptr = (u8 *) params->seq;
1980 key.rxiv.hi = (ivptr[5] << 24) | (ivptr[4] << 16) |
1981 (ivptr[3] << 8) | ivptr[2];
1982 key.rxiv.lo = (ivptr[1] << 8) | ivptr[0];
1983 key.iv_initialized = true;
1984 }
1985
1986 switch (params->cipher) {
1987 case WLAN_CIPHER_SUITE_WEP40:
1988 key.algo = CRYPTO_ALGO_WEP1;
1989 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
1990 break;
1991 case WLAN_CIPHER_SUITE_WEP104:
1992 key.algo = CRYPTO_ALGO_WEP128;
1993 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
1994 break;
1995 case WLAN_CIPHER_SUITE_TKIP:
1996 key.algo = CRYPTO_ALGO_TKIP;
1997 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
1998 break;
1999 case WLAN_CIPHER_SUITE_AES_CMAC:
2000 key.algo = CRYPTO_ALGO_AES_CCM;
2001 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2002 break;
2003 case WLAN_CIPHER_SUITE_CCMP:
2004 key.algo = CRYPTO_ALGO_AES_CCM;
2005 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2006 break;
2007 default:
2008 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2009 return -EINVAL;
2010 }
2011 err = send_key_to_dongle(ndev, &key);
2012 if (err)
2013 brcmf_err("wsec_key error (%d)\n", err);
2014 }
2015 return err;
2016 }
2017
2018 static s32
2019 brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
2020 u8 key_idx, bool pairwise, const u8 *mac_addr,
2021 struct key_params *params)
2022 {
2023 struct brcmf_if *ifp = netdev_priv(ndev);
2024 struct brcmf_wsec_key key;
2025 s32 val;
2026 s32 wsec;
2027 s32 err = 0;
2028 u8 keybuf[8];
2029
2030 brcmf_dbg(TRACE, "Enter\n");
2031 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2032 if (!check_vif_up(ifp->vif))
2033 return -EIO;
2034
2035 if (mac_addr &&
2036 (params->cipher != WLAN_CIPHER_SUITE_WEP40) &&
2037 (params->cipher != WLAN_CIPHER_SUITE_WEP104)) {
2038 brcmf_dbg(TRACE, "Exit");
2039 return brcmf_add_keyext(wiphy, ndev, key_idx, mac_addr, params);
2040 }
2041 memset(&key, 0, sizeof(key));
2042
2043 key.len = (u32) params->key_len;
2044 key.index = (u32) key_idx;
2045
2046 if (key.len > sizeof(key.data)) {
2047 brcmf_err("Too long key length (%u)\n", key.len);
2048 err = -EINVAL;
2049 goto done;
2050 }
2051 memcpy(key.data, params->key, key.len);
2052
2053 key.flags = BRCMF_PRIMARY_KEY;
2054 switch (params->cipher) {
2055 case WLAN_CIPHER_SUITE_WEP40:
2056 key.algo = CRYPTO_ALGO_WEP1;
2057 val = WEP_ENABLED;
2058 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2059 break;
2060 case WLAN_CIPHER_SUITE_WEP104:
2061 key.algo = CRYPTO_ALGO_WEP128;
2062 val = WEP_ENABLED;
2063 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2064 break;
2065 case WLAN_CIPHER_SUITE_TKIP:
2066 if (!brcmf_is_apmode(ifp->vif)) {
2067 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
2068 memcpy(keybuf, &key.data[24], sizeof(keybuf));
2069 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
2070 memcpy(&key.data[16], keybuf, sizeof(keybuf));
2071 }
2072 key.algo = CRYPTO_ALGO_TKIP;
2073 val = TKIP_ENABLED;
2074 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2075 break;
2076 case WLAN_CIPHER_SUITE_AES_CMAC:
2077 key.algo = CRYPTO_ALGO_AES_CCM;
2078 val = AES_ENABLED;
2079 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2080 break;
2081 case WLAN_CIPHER_SUITE_CCMP:
2082 key.algo = CRYPTO_ALGO_AES_CCM;
2083 val = AES_ENABLED;
2084 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2085 break;
2086 default:
2087 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2088 err = -EINVAL;
2089 goto done;
2090 }
2091
2092 err = send_key_to_dongle(ndev, &key);
2093 if (err)
2094 goto done;
2095
2096 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2097 if (err) {
2098 brcmf_err("get wsec error (%d)\n", err);
2099 goto done;
2100 }
2101 wsec |= val;
2102 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2103 if (err) {
2104 brcmf_err("set wsec error (%d)\n", err);
2105 goto done;
2106 }
2107
2108 done:
2109 brcmf_dbg(TRACE, "Exit\n");
2110 return err;
2111 }
2112
2113 static s32
2114 brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
2115 u8 key_idx, bool pairwise, const u8 *mac_addr)
2116 {
2117 struct brcmf_if *ifp = netdev_priv(ndev);
2118 struct brcmf_wsec_key key;
2119 s32 err = 0;
2120
2121 brcmf_dbg(TRACE, "Enter\n");
2122 if (!check_vif_up(ifp->vif))
2123 return -EIO;
2124
2125 if (key_idx >= DOT11_MAX_DEFAULT_KEYS) {
2126 /* we ignore this key index in this case */
2127 brcmf_err("invalid key index (%d)\n", key_idx);
2128 return -EINVAL;
2129 }
2130
2131 memset(&key, 0, sizeof(key));
2132
2133 key.index = (u32) key_idx;
2134 key.flags = BRCMF_PRIMARY_KEY;
2135 key.algo = CRYPTO_ALGO_OFF;
2136
2137 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2138
2139 /* Set the new key/index */
2140 err = send_key_to_dongle(ndev, &key);
2141
2142 brcmf_dbg(TRACE, "Exit\n");
2143 return err;
2144 }
2145
2146 static s32
2147 brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
2148 u8 key_idx, bool pairwise, const u8 *mac_addr, void *cookie,
2149 void (*callback) (void *cookie, struct key_params * params))
2150 {
2151 struct key_params params;
2152 struct brcmf_if *ifp = netdev_priv(ndev);
2153 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2154 struct brcmf_cfg80211_security *sec;
2155 s32 wsec;
2156 s32 err = 0;
2157
2158 brcmf_dbg(TRACE, "Enter\n");
2159 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2160 if (!check_vif_up(ifp->vif))
2161 return -EIO;
2162
2163 memset(&params, 0, sizeof(params));
2164
2165 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2166 if (err) {
2167 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2168 /* Ignore this error, may happen during DISASSOC */
2169 err = -EAGAIN;
2170 goto done;
2171 }
2172 if (wsec & WEP_ENABLED) {
2173 sec = &profile->sec;
2174 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) {
2175 params.cipher = WLAN_CIPHER_SUITE_WEP40;
2176 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2177 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) {
2178 params.cipher = WLAN_CIPHER_SUITE_WEP104;
2179 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2180 }
2181 } else if (wsec & TKIP_ENABLED) {
2182 params.cipher = WLAN_CIPHER_SUITE_TKIP;
2183 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2184 } else if (wsec & AES_ENABLED) {
2185 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
2186 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2187 } else {
2188 brcmf_err("Invalid algo (0x%x)\n", wsec);
2189 err = -EINVAL;
2190 goto done;
2191 }
2192 callback(cookie, &params);
2193
2194 done:
2195 brcmf_dbg(TRACE, "Exit\n");
2196 return err;
2197 }
2198
2199 static s32
2200 brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy,
2201 struct net_device *ndev, u8 key_idx)
2202 {
2203 brcmf_dbg(INFO, "Not supported\n");
2204
2205 return -EOPNOTSUPP;
2206 }
2207
2208 static s32
2209 brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
2210 const u8 *mac, struct station_info *sinfo)
2211 {
2212 struct brcmf_if *ifp = netdev_priv(ndev);
2213 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2214 struct brcmf_scb_val_le scb_val;
2215 int rssi;
2216 s32 rate;
2217 s32 err = 0;
2218 u8 *bssid = profile->bssid;
2219 struct brcmf_sta_info_le sta_info_le;
2220 u32 beacon_period;
2221 u32 dtim_period;
2222
2223 brcmf_dbg(TRACE, "Enter, MAC %pM\n", mac);
2224 if (!check_vif_up(ifp->vif))
2225 return -EIO;
2226
2227 if (brcmf_is_apmode(ifp->vif)) {
2228 memcpy(&sta_info_le, mac, ETH_ALEN);
2229 err = brcmf_fil_iovar_data_get(ifp, "sta_info",
2230 &sta_info_le,
2231 sizeof(sta_info_le));
2232 if (err < 0) {
2233 brcmf_err("GET STA INFO failed, %d\n", err);
2234 goto done;
2235 }
2236 sinfo->filled = STATION_INFO_INACTIVE_TIME;
2237 sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000;
2238 if (le32_to_cpu(sta_info_le.flags) & BRCMF_STA_ASSOC) {
2239 sinfo->filled |= STATION_INFO_CONNECTED_TIME;
2240 sinfo->connected_time = le32_to_cpu(sta_info_le.in);
2241 }
2242 brcmf_dbg(TRACE, "STA idle time : %d ms, connected time :%d sec\n",
2243 sinfo->inactive_time, sinfo->connected_time);
2244 } else if (ifp->vif->wdev.iftype == NL80211_IFTYPE_STATION) {
2245 if (memcmp(mac, bssid, ETH_ALEN)) {
2246 brcmf_err("Wrong Mac address cfg_mac-%pM wl_bssid-%pM\n",
2247 mac, bssid);
2248 err = -ENOENT;
2249 goto done;
2250 }
2251 /* Report the current tx rate */
2252 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate);
2253 if (err) {
2254 brcmf_err("Could not get rate (%d)\n", err);
2255 goto done;
2256 } else {
2257 sinfo->filled |= STATION_INFO_TX_BITRATE;
2258 sinfo->txrate.legacy = rate * 5;
2259 brcmf_dbg(CONN, "Rate %d Mbps\n", rate / 2);
2260 }
2261
2262 if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
2263 &ifp->vif->sme_state)) {
2264 memset(&scb_val, 0, sizeof(scb_val));
2265 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI,
2266 &scb_val, sizeof(scb_val));
2267 if (err) {
2268 brcmf_err("Could not get rssi (%d)\n", err);
2269 goto done;
2270 } else {
2271 rssi = le32_to_cpu(scb_val.val);
2272 sinfo->filled |= STATION_INFO_SIGNAL;
2273 sinfo->signal = rssi;
2274 brcmf_dbg(CONN, "RSSI %d dBm\n", rssi);
2275 }
2276 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_BCNPRD,
2277 &beacon_period);
2278 if (err) {
2279 brcmf_err("Could not get beacon period (%d)\n",
2280 err);
2281 goto done;
2282 } else {
2283 sinfo->bss_param.beacon_interval =
2284 beacon_period;
2285 brcmf_dbg(CONN, "Beacon peroid %d\n",
2286 beacon_period);
2287 }
2288 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_DTIMPRD,
2289 &dtim_period);
2290 if (err) {
2291 brcmf_err("Could not get DTIM period (%d)\n",
2292 err);
2293 goto done;
2294 } else {
2295 sinfo->bss_param.dtim_period = dtim_period;
2296 brcmf_dbg(CONN, "DTIM peroid %d\n",
2297 dtim_period);
2298 }
2299 sinfo->filled |= STATION_INFO_BSS_PARAM;
2300 }
2301 } else
2302 err = -EPERM;
2303 done:
2304 brcmf_dbg(TRACE, "Exit\n");
2305 return err;
2306 }
2307
2308 static s32
2309 brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
2310 bool enabled, s32 timeout)
2311 {
2312 s32 pm;
2313 s32 err = 0;
2314 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2315 struct brcmf_if *ifp = netdev_priv(ndev);
2316
2317 brcmf_dbg(TRACE, "Enter\n");
2318
2319 /*
2320 * Powersave enable/disable request is coming from the
2321 * cfg80211 even before the interface is up. In that
2322 * scenario, driver will be storing the power save
2323 * preference in cfg struct to apply this to
2324 * FW later while initializing the dongle
2325 */
2326 cfg->pwr_save = enabled;
2327 if (!check_vif_up(ifp->vif)) {
2328
2329 brcmf_dbg(INFO, "Device is not ready, storing the value in cfg_info struct\n");
2330 goto done;
2331 }
2332
2333 pm = enabled ? PM_FAST : PM_OFF;
2334 /* Do not enable the power save after assoc if it is a p2p interface */
2335 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) {
2336 brcmf_dbg(INFO, "Do not enable power save for P2P clients\n");
2337 pm = PM_OFF;
2338 }
2339 brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled"));
2340
2341 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm);
2342 if (err) {
2343 if (err == -ENODEV)
2344 brcmf_err("net_device is not ready yet\n");
2345 else
2346 brcmf_err("error (%d)\n", err);
2347 }
2348 done:
2349 brcmf_dbg(TRACE, "Exit\n");
2350 return err;
2351 }
2352
2353 static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
2354 struct brcmf_bss_info_le *bi)
2355 {
2356 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2357 struct ieee80211_channel *notify_channel;
2358 struct cfg80211_bss *bss;
2359 struct ieee80211_supported_band *band;
2360 struct brcmu_chan ch;
2361 u16 channel;
2362 u32 freq;
2363 u16 notify_capability;
2364 u16 notify_interval;
2365 u8 *notify_ie;
2366 size_t notify_ielen;
2367 s32 notify_signal;
2368
2369 if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) {
2370 brcmf_err("Bss info is larger than buffer. Discarding\n");
2371 return 0;
2372 }
2373
2374 if (!bi->ctl_ch) {
2375 ch.chspec = le16_to_cpu(bi->chanspec);
2376 cfg->d11inf.decchspec(&ch);
2377 bi->ctl_ch = ch.chnum;
2378 }
2379 channel = bi->ctl_ch;
2380
2381 if (channel <= CH_MAX_2G_CHANNEL)
2382 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2383 else
2384 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2385
2386 freq = ieee80211_channel_to_frequency(channel, band->band);
2387 notify_channel = ieee80211_get_channel(wiphy, freq);
2388
2389 notify_capability = le16_to_cpu(bi->capability);
2390 notify_interval = le16_to_cpu(bi->beacon_period);
2391 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2392 notify_ielen = le32_to_cpu(bi->ie_length);
2393 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2394
2395 brcmf_dbg(CONN, "bssid: %pM\n", bi->BSSID);
2396 brcmf_dbg(CONN, "Channel: %d(%d)\n", channel, freq);
2397 brcmf_dbg(CONN, "Capability: %X\n", notify_capability);
2398 brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval);
2399 brcmf_dbg(CONN, "Signal: %d\n", notify_signal);
2400
2401 bss = cfg80211_inform_bss(wiphy, notify_channel,
2402 CFG80211_BSS_FTYPE_UNKNOWN,
2403 (const u8 *)bi->BSSID,
2404 0, notify_capability,
2405 notify_interval, notify_ie,
2406 notify_ielen, notify_signal,
2407 GFP_KERNEL);
2408
2409 if (!bss)
2410 return -ENOMEM;
2411
2412 cfg80211_put_bss(wiphy, bss);
2413
2414 return 0;
2415 }
2416
2417 static struct brcmf_bss_info_le *
2418 next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss)
2419 {
2420 if (bss == NULL)
2421 return list->bss_info_le;
2422 return (struct brcmf_bss_info_le *)((unsigned long)bss +
2423 le32_to_cpu(bss->length));
2424 }
2425
2426 static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg)
2427 {
2428 struct brcmf_scan_results *bss_list;
2429 struct brcmf_bss_info_le *bi = NULL; /* must be initialized */
2430 s32 err = 0;
2431 int i;
2432
2433 bss_list = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
2434 if (bss_list->count != 0 &&
2435 bss_list->version != BRCMF_BSS_INFO_VERSION) {
2436 brcmf_err("Version %d != WL_BSS_INFO_VERSION\n",
2437 bss_list->version);
2438 return -EOPNOTSUPP;
2439 }
2440 brcmf_dbg(SCAN, "scanned AP count (%d)\n", bss_list->count);
2441 for (i = 0; i < bss_list->count; i++) {
2442 bi = next_bss_le(bss_list, bi);
2443 err = brcmf_inform_single_bss(cfg, bi);
2444 if (err)
2445 break;
2446 }
2447 return err;
2448 }
2449
2450 static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg,
2451 struct net_device *ndev, const u8 *bssid)
2452 {
2453 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2454 struct ieee80211_channel *notify_channel;
2455 struct brcmf_bss_info_le *bi = NULL;
2456 struct ieee80211_supported_band *band;
2457 struct cfg80211_bss *bss;
2458 struct brcmu_chan ch;
2459 u8 *buf = NULL;
2460 s32 err = 0;
2461 u32 freq;
2462 u16 notify_capability;
2463 u16 notify_interval;
2464 u8 *notify_ie;
2465 size_t notify_ielen;
2466 s32 notify_signal;
2467
2468 brcmf_dbg(TRACE, "Enter\n");
2469
2470 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
2471 if (buf == NULL) {
2472 err = -ENOMEM;
2473 goto CleanUp;
2474 }
2475
2476 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
2477
2478 err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO,
2479 buf, WL_BSS_INFO_MAX);
2480 if (err) {
2481 brcmf_err("WLC_GET_BSS_INFO failed: %d\n", err);
2482 goto CleanUp;
2483 }
2484
2485 bi = (struct brcmf_bss_info_le *)(buf + 4);
2486
2487 ch.chspec = le16_to_cpu(bi->chanspec);
2488 cfg->d11inf.decchspec(&ch);
2489
2490 if (ch.band == BRCMU_CHAN_BAND_2G)
2491 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2492 else
2493 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2494
2495 freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
2496 notify_channel = ieee80211_get_channel(wiphy, freq);
2497
2498 notify_capability = le16_to_cpu(bi->capability);
2499 notify_interval = le16_to_cpu(bi->beacon_period);
2500 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2501 notify_ielen = le32_to_cpu(bi->ie_length);
2502 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2503
2504 brcmf_dbg(CONN, "channel: %d(%d)\n", ch.chnum, freq);
2505 brcmf_dbg(CONN, "capability: %X\n", notify_capability);
2506 brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval);
2507 brcmf_dbg(CONN, "signal: %d\n", notify_signal);
2508
2509 bss = cfg80211_inform_bss(wiphy, notify_channel,
2510 CFG80211_BSS_FTYPE_UNKNOWN, bssid, 0,
2511 notify_capability, notify_interval,
2512 notify_ie, notify_ielen, notify_signal,
2513 GFP_KERNEL);
2514
2515 if (!bss) {
2516 err = -ENOMEM;
2517 goto CleanUp;
2518 }
2519
2520 cfg80211_put_bss(wiphy, bss);
2521
2522 CleanUp:
2523
2524 kfree(buf);
2525
2526 brcmf_dbg(TRACE, "Exit\n");
2527
2528 return err;
2529 }
2530
2531 static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg,
2532 struct brcmf_if *ifp)
2533 {
2534 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ifp->ndev);
2535 struct brcmf_bss_info_le *bi;
2536 struct brcmf_ssid *ssid;
2537 const struct brcmf_tlv *tim;
2538 u16 beacon_interval;
2539 u8 dtim_period;
2540 size_t ie_len;
2541 u8 *ie;
2542 s32 err = 0;
2543
2544 brcmf_dbg(TRACE, "Enter\n");
2545 if (brcmf_is_ibssmode(ifp->vif))
2546 return err;
2547
2548 ssid = &profile->ssid;
2549
2550 *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX);
2551 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
2552 cfg->extra_buf, WL_EXTRA_BUF_MAX);
2553 if (err) {
2554 brcmf_err("Could not get bss info %d\n", err);
2555 goto update_bss_info_out;
2556 }
2557
2558 bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4);
2559 err = brcmf_inform_single_bss(cfg, bi);
2560 if (err)
2561 goto update_bss_info_out;
2562
2563 ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset);
2564 ie_len = le32_to_cpu(bi->ie_length);
2565 beacon_interval = le16_to_cpu(bi->beacon_period);
2566
2567 tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM);
2568 if (tim)
2569 dtim_period = tim->data[1];
2570 else {
2571 /*
2572 * active scan was done so we could not get dtim
2573 * information out of probe response.
2574 * so we speficially query dtim information to dongle.
2575 */
2576 u32 var;
2577 err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var);
2578 if (err) {
2579 brcmf_err("wl dtim_assoc failed (%d)\n", err);
2580 goto update_bss_info_out;
2581 }
2582 dtim_period = (u8)var;
2583 }
2584
2585 update_bss_info_out:
2586 brcmf_dbg(TRACE, "Exit");
2587 return err;
2588 }
2589
2590 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg)
2591 {
2592 struct escan_info *escan = &cfg->escan_info;
2593
2594 set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2595 if (cfg->scan_request) {
2596 escan->escan_state = WL_ESCAN_STATE_IDLE;
2597 brcmf_notify_escan_complete(cfg, escan->ifp, true, true);
2598 }
2599 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2600 clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2601 }
2602
2603 static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
2604 {
2605 struct brcmf_cfg80211_info *cfg =
2606 container_of(work, struct brcmf_cfg80211_info,
2607 escan_timeout_work);
2608
2609 brcmf_inform_bss(cfg);
2610 brcmf_notify_escan_complete(cfg, cfg->escan_info.ifp, true, true);
2611 }
2612
2613 static void brcmf_escan_timeout(unsigned long data)
2614 {
2615 struct brcmf_cfg80211_info *cfg =
2616 (struct brcmf_cfg80211_info *)data;
2617
2618 if (cfg->scan_request) {
2619 brcmf_err("timer expired\n");
2620 schedule_work(&cfg->escan_timeout_work);
2621 }
2622 }
2623
2624 static s32
2625 brcmf_compare_update_same_bss(struct brcmf_cfg80211_info *cfg,
2626 struct brcmf_bss_info_le *bss,
2627 struct brcmf_bss_info_le *bss_info_le)
2628 {
2629 struct brcmu_chan ch_bss, ch_bss_info_le;
2630
2631 ch_bss.chspec = le16_to_cpu(bss->chanspec);
2632 cfg->d11inf.decchspec(&ch_bss);
2633 ch_bss_info_le.chspec = le16_to_cpu(bss_info_le->chanspec);
2634 cfg->d11inf.decchspec(&ch_bss_info_le);
2635
2636 if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) &&
2637 ch_bss.band == ch_bss_info_le.band &&
2638 bss_info_le->SSID_len == bss->SSID_len &&
2639 !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) {
2640 if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) ==
2641 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL)) {
2642 s16 bss_rssi = le16_to_cpu(bss->RSSI);
2643 s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI);
2644
2645 /* preserve max RSSI if the measurements are
2646 * both on-channel or both off-channel
2647 */
2648 if (bss_info_rssi > bss_rssi)
2649 bss->RSSI = bss_info_le->RSSI;
2650 } else if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) &&
2651 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == 0) {
2652 /* preserve the on-channel rssi measurement
2653 * if the new measurement is off channel
2654 */
2655 bss->RSSI = bss_info_le->RSSI;
2656 bss->flags |= BRCMF_BSS_RSSI_ON_CHANNEL;
2657 }
2658 return 1;
2659 }
2660 return 0;
2661 }
2662
2663 static s32
2664 brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
2665 const struct brcmf_event_msg *e, void *data)
2666 {
2667 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
2668 s32 status;
2669 struct brcmf_escan_result_le *escan_result_le;
2670 struct brcmf_bss_info_le *bss_info_le;
2671 struct brcmf_bss_info_le *bss = NULL;
2672 u32 bi_length;
2673 struct brcmf_scan_results *list;
2674 u32 i;
2675 bool aborted;
2676
2677 status = e->status;
2678
2679 if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
2680 brcmf_err("scan not ready, bssidx=%d\n", ifp->bssidx);
2681 return -EPERM;
2682 }
2683
2684 if (status == BRCMF_E_STATUS_PARTIAL) {
2685 brcmf_dbg(SCAN, "ESCAN Partial result\n");
2686 escan_result_le = (struct brcmf_escan_result_le *) data;
2687 if (!escan_result_le) {
2688 brcmf_err("Invalid escan result (NULL pointer)\n");
2689 goto exit;
2690 }
2691 if (le16_to_cpu(escan_result_le->bss_count) != 1) {
2692 brcmf_err("Invalid bss_count %d: ignoring\n",
2693 escan_result_le->bss_count);
2694 goto exit;
2695 }
2696 bss_info_le = &escan_result_le->bss_info_le;
2697
2698 if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le))
2699 goto exit;
2700
2701 if (!cfg->scan_request) {
2702 brcmf_dbg(SCAN, "result without cfg80211 request\n");
2703 goto exit;
2704 }
2705
2706 bi_length = le32_to_cpu(bss_info_le->length);
2707 if (bi_length != (le32_to_cpu(escan_result_le->buflen) -
2708 WL_ESCAN_RESULTS_FIXED_SIZE)) {
2709 brcmf_err("Invalid bss_info length %d: ignoring\n",
2710 bi_length);
2711 goto exit;
2712 }
2713
2714 if (!(cfg_to_wiphy(cfg)->interface_modes &
2715 BIT(NL80211_IFTYPE_ADHOC))) {
2716 if (le16_to_cpu(bss_info_le->capability) &
2717 WLAN_CAPABILITY_IBSS) {
2718 brcmf_err("Ignoring IBSS result\n");
2719 goto exit;
2720 }
2721 }
2722
2723 list = (struct brcmf_scan_results *)
2724 cfg->escan_info.escan_buf;
2725 if (bi_length > WL_ESCAN_BUF_SIZE - list->buflen) {
2726 brcmf_err("Buffer is too small: ignoring\n");
2727 goto exit;
2728 }
2729
2730 for (i = 0; i < list->count; i++) {
2731 bss = bss ? (struct brcmf_bss_info_le *)
2732 ((unsigned char *)bss +
2733 le32_to_cpu(bss->length)) : list->bss_info_le;
2734 if (brcmf_compare_update_same_bss(cfg, bss,
2735 bss_info_le))
2736 goto exit;
2737 }
2738 memcpy(&(cfg->escan_info.escan_buf[list->buflen]),
2739 bss_info_le, bi_length);
2740 list->version = le32_to_cpu(bss_info_le->version);
2741 list->buflen += bi_length;
2742 list->count++;
2743 } else {
2744 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2745 if (brcmf_p2p_scan_finding_common_channel(cfg, NULL))
2746 goto exit;
2747 if (cfg->scan_request) {
2748 brcmf_inform_bss(cfg);
2749 aborted = status != BRCMF_E_STATUS_SUCCESS;
2750 brcmf_notify_escan_complete(cfg, ifp, aborted, false);
2751 } else
2752 brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n",
2753 status);
2754 }
2755 exit:
2756 return 0;
2757 }
2758
2759 static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg)
2760 {
2761 brcmf_fweh_register(cfg->pub, BRCMF_E_ESCAN_RESULT,
2762 brcmf_cfg80211_escan_handler);
2763 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2764 /* Init scan_timeout timer */
2765 init_timer(&cfg->escan_timeout);
2766 cfg->escan_timeout.data = (unsigned long) cfg;
2767 cfg->escan_timeout.function = brcmf_escan_timeout;
2768 INIT_WORK(&cfg->escan_timeout_work,
2769 brcmf_cfg80211_escan_timeout_worker);
2770 }
2771
2772 static __always_inline void brcmf_delay(u32 ms)
2773 {
2774 if (ms < 1000 / HZ) {
2775 cond_resched();
2776 mdelay(ms);
2777 } else {
2778 msleep(ms);
2779 }
2780 }
2781
2782 static s32 brcmf_config_wowl_pattern(struct brcmf_if *ifp, u8 cmd[4],
2783 u8 *pattern, u32 patternsize, u8 *mask,
2784 u32 packet_offset)
2785 {
2786 struct brcmf_fil_wowl_pattern_le *filter;
2787 u32 masksize;
2788 u32 patternoffset;
2789 u8 *buf;
2790 u32 bufsize;
2791 s32 ret;
2792
2793 masksize = (patternsize + 7) / 8;
2794 patternoffset = sizeof(*filter) - sizeof(filter->cmd) + masksize;
2795
2796 bufsize = sizeof(*filter) + patternsize + masksize;
2797 buf = kzalloc(bufsize, GFP_KERNEL);
2798 if (!buf)
2799 return -ENOMEM;
2800 filter = (struct brcmf_fil_wowl_pattern_le *)buf;
2801
2802 memcpy(filter->cmd, cmd, 4);
2803 filter->masksize = cpu_to_le32(masksize);
2804 filter->offset = cpu_to_le32(packet_offset);
2805 filter->patternoffset = cpu_to_le32(patternoffset);
2806 filter->patternsize = cpu_to_le32(patternsize);
2807 filter->type = cpu_to_le32(BRCMF_WOWL_PATTERN_TYPE_BITMAP);
2808
2809 if ((mask) && (masksize))
2810 memcpy(buf + sizeof(*filter), mask, masksize);
2811 if ((pattern) && (patternsize))
2812 memcpy(buf + sizeof(*filter) + masksize, pattern, patternsize);
2813
2814 ret = brcmf_fil_iovar_data_set(ifp, "wowl_pattern", buf, bufsize);
2815
2816 kfree(buf);
2817 return ret;
2818 }
2819
2820 static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
2821 {
2822 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2823 struct net_device *ndev = cfg_to_ndev(cfg);
2824 struct brcmf_if *ifp = netdev_priv(ndev);
2825
2826 brcmf_dbg(TRACE, "Enter\n");
2827
2828 if (cfg->wowl_enabled) {
2829 brcmf_configure_arp_offload(ifp, true);
2830 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM,
2831 cfg->pre_wowl_pmmode);
2832 brcmf_fil_iovar_int_set(ifp, "wowl_clear", 0);
2833 brcmf_config_wowl_pattern(ifp, "clr", NULL, 0, NULL, 0);
2834 cfg->wowl_enabled = false;
2835 }
2836 return 0;
2837 }
2838
2839 static void brcmf_configure_wowl(struct brcmf_cfg80211_info *cfg,
2840 struct brcmf_if *ifp,
2841 struct cfg80211_wowlan *wowl)
2842 {
2843 u32 wowl_config;
2844 u32 i;
2845
2846 brcmf_dbg(TRACE, "Suspend, wowl config.\n");
2847
2848 brcmf_configure_arp_offload(ifp, false);
2849 brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_PM, &cfg->pre_wowl_pmmode);
2850 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, PM_MAX);
2851
2852 wowl_config = 0;
2853 if (wowl->disconnect)
2854 wowl_config = BRCMF_WOWL_DIS | BRCMF_WOWL_BCN | BRCMF_WOWL_RETR;
2855 if (wowl->magic_pkt)
2856 wowl_config |= BRCMF_WOWL_MAGIC;
2857 if ((wowl->patterns) && (wowl->n_patterns)) {
2858 wowl_config |= BRCMF_WOWL_NET;
2859 for (i = 0; i < wowl->n_patterns; i++) {
2860 brcmf_config_wowl_pattern(ifp, "add",
2861 (u8 *)wowl->patterns[i].pattern,
2862 wowl->patterns[i].pattern_len,
2863 (u8 *)wowl->patterns[i].mask,
2864 wowl->patterns[i].pkt_offset);
2865 }
2866 }
2867 brcmf_fil_iovar_int_set(ifp, "wowl", wowl_config);
2868 brcmf_fil_iovar_int_set(ifp, "wowl_activate", 1);
2869 brcmf_bus_wowl_config(cfg->pub->bus_if, true);
2870 cfg->wowl_enabled = true;
2871 }
2872
2873 static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
2874 struct cfg80211_wowlan *wowl)
2875 {
2876 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2877 struct net_device *ndev = cfg_to_ndev(cfg);
2878 struct brcmf_if *ifp = netdev_priv(ndev);
2879 struct brcmf_cfg80211_vif *vif;
2880
2881 brcmf_dbg(TRACE, "Enter\n");
2882
2883 /* if the primary net_device is not READY there is nothing
2884 * we can do but pray resume goes smoothly.
2885 */
2886 if (!check_vif_up(ifp->vif))
2887 goto exit;
2888
2889 /* end any scanning */
2890 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
2891 brcmf_abort_scanning(cfg);
2892
2893 if (wowl == NULL) {
2894 brcmf_bus_wowl_config(cfg->pub->bus_if, false);
2895 list_for_each_entry(vif, &cfg->vif_list, list) {
2896 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state))
2897 continue;
2898 /* While going to suspend if associated with AP
2899 * disassociate from AP to save power while system is
2900 * in suspended state
2901 */
2902 brcmf_link_down(vif);
2903 /* Make sure WPA_Supplicant receives all the event
2904 * generated due to DISASSOC call to the fw to keep
2905 * the state fw and WPA_Supplicant state consistent
2906 */
2907 brcmf_delay(500);
2908 }
2909 /* Configure MPC */
2910 brcmf_set_mpc(ifp, 1);
2911
2912 } else {
2913 /* Configure WOWL paramaters */
2914 brcmf_configure_wowl(cfg, ifp, wowl);
2915 }
2916
2917 exit:
2918 brcmf_dbg(TRACE, "Exit\n");
2919 /* clear any scanning activity */
2920 cfg->scan_status = 0;
2921 return 0;
2922 }
2923
2924 static __used s32
2925 brcmf_update_pmklist(struct net_device *ndev,
2926 struct brcmf_cfg80211_pmk_list *pmk_list, s32 err)
2927 {
2928 int i, j;
2929 int pmkid_len;
2930
2931 pmkid_len = le32_to_cpu(pmk_list->pmkids.npmkid);
2932
2933 brcmf_dbg(CONN, "No of elements %d\n", pmkid_len);
2934 for (i = 0; i < pmkid_len; i++) {
2935 brcmf_dbg(CONN, "PMKID[%d]: %pM =\n", i,
2936 &pmk_list->pmkids.pmkid[i].BSSID);
2937 for (j = 0; j < WLAN_PMKID_LEN; j++)
2938 brcmf_dbg(CONN, "%02x\n",
2939 pmk_list->pmkids.pmkid[i].PMKID[j]);
2940 }
2941
2942 if (!err)
2943 brcmf_fil_iovar_data_set(netdev_priv(ndev), "pmkid_info",
2944 (char *)pmk_list, sizeof(*pmk_list));
2945
2946 return err;
2947 }
2948
2949 static s32
2950 brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev,
2951 struct cfg80211_pmksa *pmksa)
2952 {
2953 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2954 struct brcmf_if *ifp = netdev_priv(ndev);
2955 struct pmkid_list *pmkids = &cfg->pmk_list->pmkids;
2956 s32 err = 0;
2957 int i;
2958 int pmkid_len;
2959
2960 brcmf_dbg(TRACE, "Enter\n");
2961 if (!check_vif_up(ifp->vif))
2962 return -EIO;
2963
2964 pmkid_len = le32_to_cpu(pmkids->npmkid);
2965 for (i = 0; i < pmkid_len; i++)
2966 if (!memcmp(pmksa->bssid, pmkids->pmkid[i].BSSID, ETH_ALEN))
2967 break;
2968 if (i < WL_NUM_PMKIDS_MAX) {
2969 memcpy(pmkids->pmkid[i].BSSID, pmksa->bssid, ETH_ALEN);
2970 memcpy(pmkids->pmkid[i].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
2971 if (i == pmkid_len) {
2972 pmkid_len++;
2973 pmkids->npmkid = cpu_to_le32(pmkid_len);
2974 }
2975 } else
2976 err = -EINVAL;
2977
2978 brcmf_dbg(CONN, "set_pmksa,IW_PMKSA_ADD - PMKID: %pM =\n",
2979 pmkids->pmkid[pmkid_len].BSSID);
2980 for (i = 0; i < WLAN_PMKID_LEN; i++)
2981 brcmf_dbg(CONN, "%02x\n", pmkids->pmkid[pmkid_len].PMKID[i]);
2982
2983 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
2984
2985 brcmf_dbg(TRACE, "Exit\n");
2986 return err;
2987 }
2988
2989 static s32
2990 brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
2991 struct cfg80211_pmksa *pmksa)
2992 {
2993 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2994 struct brcmf_if *ifp = netdev_priv(ndev);
2995 struct pmkid_list pmkid;
2996 s32 err = 0;
2997 int i, pmkid_len;
2998
2999 brcmf_dbg(TRACE, "Enter\n");
3000 if (!check_vif_up(ifp->vif))
3001 return -EIO;
3002
3003 memcpy(&pmkid.pmkid[0].BSSID, pmksa->bssid, ETH_ALEN);
3004 memcpy(&pmkid.pmkid[0].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
3005
3006 brcmf_dbg(CONN, "del_pmksa,IW_PMKSA_REMOVE - PMKID: %pM =\n",
3007 &pmkid.pmkid[0].BSSID);
3008 for (i = 0; i < WLAN_PMKID_LEN; i++)
3009 brcmf_dbg(CONN, "%02x\n", pmkid.pmkid[0].PMKID[i]);
3010
3011 pmkid_len = le32_to_cpu(cfg->pmk_list->pmkids.npmkid);
3012 for (i = 0; i < pmkid_len; i++)
3013 if (!memcmp
3014 (pmksa->bssid, &cfg->pmk_list->pmkids.pmkid[i].BSSID,
3015 ETH_ALEN))
3016 break;
3017
3018 if ((pmkid_len > 0)
3019 && (i < pmkid_len)) {
3020 memset(&cfg->pmk_list->pmkids.pmkid[i], 0,
3021 sizeof(struct pmkid));
3022 for (; i < (pmkid_len - 1); i++) {
3023 memcpy(&cfg->pmk_list->pmkids.pmkid[i].BSSID,
3024 &cfg->pmk_list->pmkids.pmkid[i + 1].BSSID,
3025 ETH_ALEN);
3026 memcpy(&cfg->pmk_list->pmkids.pmkid[i].PMKID,
3027 &cfg->pmk_list->pmkids.pmkid[i + 1].PMKID,
3028 WLAN_PMKID_LEN);
3029 }
3030 cfg->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1);
3031 } else
3032 err = -EINVAL;
3033
3034 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3035
3036 brcmf_dbg(TRACE, "Exit\n");
3037 return err;
3038
3039 }
3040
3041 static s32
3042 brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev)
3043 {
3044 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3045 struct brcmf_if *ifp = netdev_priv(ndev);
3046 s32 err = 0;
3047
3048 brcmf_dbg(TRACE, "Enter\n");
3049 if (!check_vif_up(ifp->vif))
3050 return -EIO;
3051
3052 memset(cfg->pmk_list, 0, sizeof(*cfg->pmk_list));
3053 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3054
3055 brcmf_dbg(TRACE, "Exit\n");
3056 return err;
3057
3058 }
3059
3060 /*
3061 * PFN result doesn't have all the info which are
3062 * required by the supplicant
3063 * (For e.g IEs) Do a target Escan so that sched scan results are reported
3064 * via wl_inform_single_bss in the required format. Escan does require the
3065 * scan request in the form of cfg80211_scan_request. For timebeing, create
3066 * cfg80211_scan_request one out of the received PNO event.
3067 */
3068 static s32
3069 brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
3070 const struct brcmf_event_msg *e, void *data)
3071 {
3072 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
3073 struct brcmf_pno_net_info_le *netinfo, *netinfo_start;
3074 struct cfg80211_scan_request *request = NULL;
3075 struct cfg80211_ssid *ssid = NULL;
3076 struct ieee80211_channel *channel = NULL;
3077 struct wiphy *wiphy = cfg_to_wiphy(cfg);
3078 int err = 0;
3079 int channel_req = 0;
3080 int band = 0;
3081 struct brcmf_pno_scanresults_le *pfn_result;
3082 u32 result_count;
3083 u32 status;
3084
3085 brcmf_dbg(SCAN, "Enter\n");
3086
3087 if (e->event_code == BRCMF_E_PFN_NET_LOST) {
3088 brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n");
3089 return 0;
3090 }
3091
3092 pfn_result = (struct brcmf_pno_scanresults_le *)data;
3093 result_count = le32_to_cpu(pfn_result->count);
3094 status = le32_to_cpu(pfn_result->status);
3095
3096 /*
3097 * PFN event is limited to fit 512 bytes so we may get
3098 * multiple NET_FOUND events. For now place a warning here.
3099 */
3100 WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE);
3101 brcmf_dbg(SCAN, "PFN NET FOUND event. count: %d\n", result_count);
3102 if (result_count > 0) {
3103 int i;
3104
3105 request = kzalloc(sizeof(*request), GFP_KERNEL);
3106 ssid = kcalloc(result_count, sizeof(*ssid), GFP_KERNEL);
3107 channel = kcalloc(result_count, sizeof(*channel), GFP_KERNEL);
3108 if (!request || !ssid || !channel) {
3109 err = -ENOMEM;
3110 goto out_err;
3111 }
3112
3113 request->wiphy = wiphy;
3114 data += sizeof(struct brcmf_pno_scanresults_le);
3115 netinfo_start = (struct brcmf_pno_net_info_le *)data;
3116
3117 for (i = 0; i < result_count; i++) {
3118 netinfo = &netinfo_start[i];
3119 if (!netinfo) {
3120 brcmf_err("Invalid netinfo ptr. index: %d\n",
3121 i);
3122 err = -EINVAL;
3123 goto out_err;
3124 }
3125
3126 brcmf_dbg(SCAN, "SSID:%s Channel:%d\n",
3127 netinfo->SSID, netinfo->channel);
3128 memcpy(ssid[i].ssid, netinfo->SSID, netinfo->SSID_len);
3129 ssid[i].ssid_len = netinfo->SSID_len;
3130 request->n_ssids++;
3131
3132 channel_req = netinfo->channel;
3133 if (channel_req <= CH_MAX_2G_CHANNEL)
3134 band = NL80211_BAND_2GHZ;
3135 else
3136 band = NL80211_BAND_5GHZ;
3137 channel[i].center_freq =
3138 ieee80211_channel_to_frequency(channel_req,
3139 band);
3140 channel[i].band = band;
3141 channel[i].flags |= IEEE80211_CHAN_NO_HT40;
3142 request->channels[i] = &channel[i];
3143 request->n_channels++;
3144 }
3145
3146 /* assign parsed ssid array */
3147 if (request->n_ssids)
3148 request->ssids = &ssid[0];
3149
3150 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3151 /* Abort any on-going scan */
3152 brcmf_abort_scanning(cfg);
3153 }
3154
3155 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3156 cfg->escan_info.run = brcmf_run_escan;
3157 err = brcmf_do_escan(cfg, wiphy, ifp, request);
3158 if (err) {
3159 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3160 goto out_err;
3161 }
3162 cfg->sched_escan = true;
3163 cfg->scan_request = request;
3164 } else {
3165 brcmf_err("FALSE PNO Event. (pfn_count == 0)\n");
3166 goto out_err;
3167 }
3168
3169 kfree(ssid);
3170 kfree(channel);
3171 kfree(request);
3172 return 0;
3173
3174 out_err:
3175 kfree(ssid);
3176 kfree(channel);
3177 kfree(request);
3178 cfg80211_sched_scan_stopped(wiphy);
3179 return err;
3180 }
3181
3182 static int brcmf_dev_pno_clean(struct net_device *ndev)
3183 {
3184 int ret;
3185
3186 /* Disable pfn */
3187 ret = brcmf_fil_iovar_int_set(netdev_priv(ndev), "pfn", 0);
3188 if (ret == 0) {
3189 /* clear pfn */
3190 ret = brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfnclear",
3191 NULL, 0);
3192 }
3193 if (ret < 0)
3194 brcmf_err("failed code %d\n", ret);
3195
3196 return ret;
3197 }
3198
3199 static int brcmf_dev_pno_config(struct net_device *ndev)
3200 {
3201 struct brcmf_pno_param_le pfn_param;
3202
3203 memset(&pfn_param, 0, sizeof(pfn_param));
3204 pfn_param.version = cpu_to_le32(BRCMF_PNO_VERSION);
3205
3206 /* set extra pno params */
3207 pfn_param.flags = cpu_to_le16(1 << BRCMF_PNO_ENABLE_ADAPTSCAN_BIT);
3208 pfn_param.repeat = BRCMF_PNO_REPEAT;
3209 pfn_param.exp = BRCMF_PNO_FREQ_EXPO_MAX;
3210
3211 /* set up pno scan fr */
3212 pfn_param.scan_freq = cpu_to_le32(BRCMF_PNO_TIME);
3213
3214 return brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfn_set",
3215 &pfn_param, sizeof(pfn_param));
3216 }
3217
3218 static int
3219 brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
3220 struct net_device *ndev,
3221 struct cfg80211_sched_scan_request *request)
3222 {
3223 struct brcmf_if *ifp = netdev_priv(ndev);
3224 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
3225 struct brcmf_pno_net_param_le pfn;
3226 int i;
3227 int ret = 0;
3228
3229 brcmf_dbg(SCAN, "Enter n_match_sets:%d n_ssids:%d\n",
3230 request->n_match_sets, request->n_ssids);
3231 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3232 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
3233 return -EAGAIN;
3234 }
3235 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
3236 brcmf_err("Scanning suppressed: status (%lu)\n",
3237 cfg->scan_status);
3238 return -EAGAIN;
3239 }
3240
3241 if (!request->n_ssids || !request->n_match_sets) {
3242 brcmf_dbg(SCAN, "Invalid sched scan req!! n_ssids:%d\n",
3243 request->n_ssids);
3244 return -EINVAL;
3245 }
3246
3247 if (request->n_ssids > 0) {
3248 for (i = 0; i < request->n_ssids; i++) {
3249 /* Active scan req for ssids */
3250 brcmf_dbg(SCAN, ">>> Active scan req for ssid (%s)\n",
3251 request->ssids[i].ssid);
3252
3253 /*
3254 * match_set ssids is a supert set of n_ssid list,
3255 * so we need not add these set seperately.
3256 */
3257 }
3258 }
3259
3260 if (request->n_match_sets > 0) {
3261 /* clean up everything */
3262 ret = brcmf_dev_pno_clean(ndev);
3263 if (ret < 0) {
3264 brcmf_err("failed error=%d\n", ret);
3265 return ret;
3266 }
3267
3268 /* configure pno */
3269 ret = brcmf_dev_pno_config(ndev);
3270 if (ret < 0) {
3271 brcmf_err("PNO setup failed!! ret=%d\n", ret);
3272 return -EINVAL;
3273 }
3274
3275 /* configure each match set */
3276 for (i = 0; i < request->n_match_sets; i++) {
3277 struct cfg80211_ssid *ssid;
3278 u32 ssid_len;
3279
3280 ssid = &request->match_sets[i].ssid;
3281 ssid_len = ssid->ssid_len;
3282
3283 if (!ssid_len) {
3284 brcmf_err("skip broadcast ssid\n");
3285 continue;
3286 }
3287 pfn.auth = cpu_to_le32(WLAN_AUTH_OPEN);
3288 pfn.wpa_auth = cpu_to_le32(BRCMF_PNO_WPA_AUTH_ANY);
3289 pfn.wsec = cpu_to_le32(0);
3290 pfn.infra = cpu_to_le32(1);
3291 pfn.flags = cpu_to_le32(1 << BRCMF_PNO_HIDDEN_BIT);
3292 pfn.ssid.SSID_len = cpu_to_le32(ssid_len);
3293 memcpy(pfn.ssid.SSID, ssid->ssid, ssid_len);
3294 ret = brcmf_fil_iovar_data_set(ifp, "pfn_add", &pfn,
3295 sizeof(pfn));
3296 brcmf_dbg(SCAN, ">>> PNO filter %s for ssid (%s)\n",
3297 ret == 0 ? "set" : "failed", ssid->ssid);
3298 }
3299 /* Enable the PNO */
3300 if (brcmf_fil_iovar_int_set(ifp, "pfn", 1) < 0) {
3301 brcmf_err("PNO enable failed!! ret=%d\n", ret);
3302 return -EINVAL;
3303 }
3304 } else {
3305 return -EINVAL;
3306 }
3307
3308 return 0;
3309 }
3310
3311 static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy,
3312 struct net_device *ndev)
3313 {
3314 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3315
3316 brcmf_dbg(SCAN, "enter\n");
3317 brcmf_dev_pno_clean(ndev);
3318 if (cfg->sched_escan)
3319 brcmf_notify_escan_complete(cfg, netdev_priv(ndev), true, true);
3320 return 0;
3321 }
3322
3323 static s32 brcmf_configure_opensecurity(struct brcmf_if *ifp)
3324 {
3325 s32 err;
3326
3327 /* set auth */
3328 err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0);
3329 if (err < 0) {
3330 brcmf_err("auth error %d\n", err);
3331 return err;
3332 }
3333 /* set wsec */
3334 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0);
3335 if (err < 0) {
3336 brcmf_err("wsec error %d\n", err);
3337 return err;
3338 }
3339 /* set upper-layer auth */
3340 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", WPA_AUTH_NONE);
3341 if (err < 0) {
3342 brcmf_err("wpa_auth error %d\n", err);
3343 return err;
3344 }
3345
3346 return 0;
3347 }
3348
3349 static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie)
3350 {
3351 if (is_rsn_ie)
3352 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0);
3353
3354 return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0);
3355 }
3356
3357 static s32
3358 brcmf_configure_wpaie(struct net_device *ndev,
3359 const struct brcmf_vs_tlv *wpa_ie,
3360 bool is_rsn_ie)
3361 {
3362 struct brcmf_if *ifp = netdev_priv(ndev);
3363 u32 auth = 0; /* d11 open authentication */
3364 u16 count;
3365 s32 err = 0;
3366 s32 len = 0;
3367 u32 i;
3368 u32 wsec;
3369 u32 pval = 0;
3370 u32 gval = 0;
3371 u32 wpa_auth = 0;
3372 u32 offset;
3373 u8 *data;
3374 u16 rsn_cap;
3375 u32 wme_bss_disable;
3376
3377 brcmf_dbg(TRACE, "Enter\n");
3378 if (wpa_ie == NULL)
3379 goto exit;
3380
3381 len = wpa_ie->len + TLV_HDR_LEN;
3382 data = (u8 *)wpa_ie;
3383 offset = TLV_HDR_LEN;
3384 if (!is_rsn_ie)
3385 offset += VS_IE_FIXED_HDR_LEN;
3386 else
3387 offset += WPA_IE_VERSION_LEN;
3388
3389 /* check for multicast cipher suite */
3390 if (offset + WPA_IE_MIN_OUI_LEN > len) {
3391 err = -EINVAL;
3392 brcmf_err("no multicast cipher suite\n");
3393 goto exit;
3394 }
3395
3396 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3397 err = -EINVAL;
3398 brcmf_err("ivalid OUI\n");
3399 goto exit;
3400 }
3401 offset += TLV_OUI_LEN;
3402
3403 /* pick up multicast cipher */
3404 switch (data[offset]) {
3405 case WPA_CIPHER_NONE:
3406 gval = 0;
3407 break;
3408 case WPA_CIPHER_WEP_40:
3409 case WPA_CIPHER_WEP_104:
3410 gval = WEP_ENABLED;
3411 break;
3412 case WPA_CIPHER_TKIP:
3413 gval = TKIP_ENABLED;
3414 break;
3415 case WPA_CIPHER_AES_CCM:
3416 gval = AES_ENABLED;
3417 break;
3418 default:
3419 err = -EINVAL;
3420 brcmf_err("Invalid multi cast cipher info\n");
3421 goto exit;
3422 }
3423
3424 offset++;
3425 /* walk thru unicast cipher list and pick up what we recognize */
3426 count = data[offset] + (data[offset + 1] << 8);
3427 offset += WPA_IE_SUITE_COUNT_LEN;
3428 /* Check for unicast suite(s) */
3429 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3430 err = -EINVAL;
3431 brcmf_err("no unicast cipher suite\n");
3432 goto exit;
3433 }
3434 for (i = 0; i < count; i++) {
3435 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3436 err = -EINVAL;
3437 brcmf_err("ivalid OUI\n");
3438 goto exit;
3439 }
3440 offset += TLV_OUI_LEN;
3441 switch (data[offset]) {
3442 case WPA_CIPHER_NONE:
3443 break;
3444 case WPA_CIPHER_WEP_40:
3445 case WPA_CIPHER_WEP_104:
3446 pval |= WEP_ENABLED;
3447 break;
3448 case WPA_CIPHER_TKIP:
3449 pval |= TKIP_ENABLED;
3450 break;
3451 case WPA_CIPHER_AES_CCM:
3452 pval |= AES_ENABLED;
3453 break;
3454 default:
3455 brcmf_err("Ivalid unicast security info\n");
3456 }
3457 offset++;
3458 }
3459 /* walk thru auth management suite list and pick up what we recognize */
3460 count = data[offset] + (data[offset + 1] << 8);
3461 offset += WPA_IE_SUITE_COUNT_LEN;
3462 /* Check for auth key management suite(s) */
3463 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3464 err = -EINVAL;
3465 brcmf_err("no auth key mgmt suite\n");
3466 goto exit;
3467 }
3468 for (i = 0; i < count; i++) {
3469 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3470 err = -EINVAL;
3471 brcmf_err("ivalid OUI\n");
3472 goto exit;
3473 }
3474 offset += TLV_OUI_LEN;
3475 switch (data[offset]) {
3476 case RSN_AKM_NONE:
3477 brcmf_dbg(TRACE, "RSN_AKM_NONE\n");
3478 wpa_auth |= WPA_AUTH_NONE;
3479 break;
3480 case RSN_AKM_UNSPECIFIED:
3481 brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n");
3482 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) :
3483 (wpa_auth |= WPA_AUTH_UNSPECIFIED);
3484 break;
3485 case RSN_AKM_PSK:
3486 brcmf_dbg(TRACE, "RSN_AKM_PSK\n");
3487 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) :
3488 (wpa_auth |= WPA_AUTH_PSK);
3489 break;
3490 default:
3491 brcmf_err("Ivalid key mgmt info\n");
3492 }
3493 offset++;
3494 }
3495
3496 if (is_rsn_ie) {
3497 wme_bss_disable = 1;
3498 if ((offset + RSN_CAP_LEN) <= len) {
3499 rsn_cap = data[offset] + (data[offset + 1] << 8);
3500 if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK)
3501 wme_bss_disable = 0;
3502 }
3503 /* set wme_bss_disable to sync RSN Capabilities */
3504 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable",
3505 wme_bss_disable);
3506 if (err < 0) {
3507 brcmf_err("wme_bss_disable error %d\n", err);
3508 goto exit;
3509 }
3510 }
3511 /* FOR WPS , set SES_OW_ENABLED */
3512 wsec = (pval | gval | SES_OW_ENABLED);
3513
3514 /* set auth */
3515 err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth);
3516 if (err < 0) {
3517 brcmf_err("auth error %d\n", err);
3518 goto exit;
3519 }
3520 /* set wsec */
3521 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
3522 if (err < 0) {
3523 brcmf_err("wsec error %d\n", err);
3524 goto exit;
3525 }
3526 /* set upper-layer auth */
3527 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth);
3528 if (err < 0) {
3529 brcmf_err("wpa_auth error %d\n", err);
3530 goto exit;
3531 }
3532
3533 exit:
3534 return err;
3535 }
3536
3537 static s32
3538 brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len,
3539 struct parsed_vndr_ies *vndr_ies)
3540 {
3541 struct brcmf_vs_tlv *vndrie;
3542 struct brcmf_tlv *ie;
3543 struct parsed_vndr_ie_info *parsed_info;
3544 s32 remaining_len;
3545
3546 remaining_len = (s32)vndr_ie_len;
3547 memset(vndr_ies, 0, sizeof(*vndr_ies));
3548
3549 ie = (struct brcmf_tlv *)vndr_ie_buf;
3550 while (ie) {
3551 if (ie->id != WLAN_EID_VENDOR_SPECIFIC)
3552 goto next;
3553 vndrie = (struct brcmf_vs_tlv *)ie;
3554 /* len should be bigger than OUI length + one */
3555 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) {
3556 brcmf_err("invalid vndr ie. length is too small %d\n",
3557 vndrie->len);
3558 goto next;
3559 }
3560 /* if wpa or wme ie, do not add ie */
3561 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) &&
3562 ((vndrie->oui_type == WPA_OUI_TYPE) ||
3563 (vndrie->oui_type == WME_OUI_TYPE))) {
3564 brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n");
3565 goto next;
3566 }
3567
3568 parsed_info = &vndr_ies->ie_info[vndr_ies->count];
3569
3570 /* save vndr ie information */
3571 parsed_info->ie_ptr = (char *)vndrie;
3572 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN;
3573 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie));
3574
3575 vndr_ies->count++;
3576
3577 brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n",
3578 parsed_info->vndrie.oui[0],
3579 parsed_info->vndrie.oui[1],
3580 parsed_info->vndrie.oui[2],
3581 parsed_info->vndrie.oui_type);
3582
3583 if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT)
3584 break;
3585 next:
3586 remaining_len -= (ie->len + TLV_HDR_LEN);
3587 if (remaining_len <= TLV_HDR_LEN)
3588 ie = NULL;
3589 else
3590 ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len +
3591 TLV_HDR_LEN);
3592 }
3593 return 0;
3594 }
3595
3596 static u32
3597 brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd)
3598 {
3599
3600 __le32 iecount_le;
3601 __le32 pktflag_le;
3602
3603 strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1);
3604 iebuf[VNDR_IE_CMD_LEN - 1] = '\0';
3605
3606 iecount_le = cpu_to_le32(1);
3607 memcpy(&iebuf[VNDR_IE_COUNT_OFFSET], &iecount_le, sizeof(iecount_le));
3608
3609 pktflag_le = cpu_to_le32(pktflag);
3610 memcpy(&iebuf[VNDR_IE_PKTFLAG_OFFSET], &pktflag_le, sizeof(pktflag_le));
3611
3612 memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len);
3613
3614 return ie_len + VNDR_IE_HDR_SIZE;
3615 }
3616
3617 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
3618 const u8 *vndr_ie_buf, u32 vndr_ie_len)
3619 {
3620 struct brcmf_if *ifp;
3621 struct vif_saved_ie *saved_ie;
3622 s32 err = 0;
3623 u8 *iovar_ie_buf;
3624 u8 *curr_ie_buf;
3625 u8 *mgmt_ie_buf = NULL;
3626 int mgmt_ie_buf_len;
3627 u32 *mgmt_ie_len;
3628 u32 del_add_ie_buf_len = 0;
3629 u32 total_ie_buf_len = 0;
3630 u32 parsed_ie_buf_len = 0;
3631 struct parsed_vndr_ies old_vndr_ies;
3632 struct parsed_vndr_ies new_vndr_ies;
3633 struct parsed_vndr_ie_info *vndrie_info;
3634 s32 i;
3635 u8 *ptr;
3636 int remained_buf_len;
3637
3638 if (!vif)
3639 return -ENODEV;
3640 ifp = vif->ifp;
3641 saved_ie = &vif->saved_ie;
3642
3643 brcmf_dbg(TRACE, "bssidx %d, pktflag : 0x%02X\n", ifp->bssidx, pktflag);
3644 iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
3645 if (!iovar_ie_buf)
3646 return -ENOMEM;
3647 curr_ie_buf = iovar_ie_buf;
3648 switch (pktflag) {
3649 case BRCMF_VNDR_IE_PRBREQ_FLAG:
3650 mgmt_ie_buf = saved_ie->probe_req_ie;
3651 mgmt_ie_len = &saved_ie->probe_req_ie_len;
3652 mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie);
3653 break;
3654 case BRCMF_VNDR_IE_PRBRSP_FLAG:
3655 mgmt_ie_buf = saved_ie->probe_res_ie;
3656 mgmt_ie_len = &saved_ie->probe_res_ie_len;
3657 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie);
3658 break;
3659 case BRCMF_VNDR_IE_BEACON_FLAG:
3660 mgmt_ie_buf = saved_ie->beacon_ie;
3661 mgmt_ie_len = &saved_ie->beacon_ie_len;
3662 mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie);
3663 break;
3664 case BRCMF_VNDR_IE_ASSOCREQ_FLAG:
3665 mgmt_ie_buf = saved_ie->assoc_req_ie;
3666 mgmt_ie_len = &saved_ie->assoc_req_ie_len;
3667 mgmt_ie_buf_len = sizeof(saved_ie->assoc_req_ie);
3668 break;
3669 default:
3670 err = -EPERM;
3671 brcmf_err("not suitable type\n");
3672 goto exit;
3673 }
3674
3675 if (vndr_ie_len > mgmt_ie_buf_len) {
3676 err = -ENOMEM;
3677 brcmf_err("extra IE size too big\n");
3678 goto exit;
3679 }
3680
3681 /* parse and save new vndr_ie in curr_ie_buff before comparing it */
3682 if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) {
3683 ptr = curr_ie_buf;
3684 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies);
3685 for (i = 0; i < new_vndr_ies.count; i++) {
3686 vndrie_info = &new_vndr_ies.ie_info[i];
3687 memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr,
3688 vndrie_info->ie_len);
3689 parsed_ie_buf_len += vndrie_info->ie_len;
3690 }
3691 }
3692
3693 if (mgmt_ie_buf && *mgmt_ie_len) {
3694 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) &&
3695 (memcmp(mgmt_ie_buf, curr_ie_buf,
3696 parsed_ie_buf_len) == 0)) {
3697 brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n");
3698 goto exit;
3699 }
3700
3701 /* parse old vndr_ie */
3702 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies);
3703
3704 /* make a command to delete old ie */
3705 for (i = 0; i < old_vndr_ies.count; i++) {
3706 vndrie_info = &old_vndr_ies.ie_info[i];
3707
3708 brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n",
3709 vndrie_info->vndrie.id,
3710 vndrie_info->vndrie.len,
3711 vndrie_info->vndrie.oui[0],
3712 vndrie_info->vndrie.oui[1],
3713 vndrie_info->vndrie.oui[2]);
3714
3715 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3716 vndrie_info->ie_ptr,
3717 vndrie_info->ie_len,
3718 "del");
3719 curr_ie_buf += del_add_ie_buf_len;
3720 total_ie_buf_len += del_add_ie_buf_len;
3721 }
3722 }
3723
3724 *mgmt_ie_len = 0;
3725 /* Add if there is any extra IE */
3726 if (mgmt_ie_buf && parsed_ie_buf_len) {
3727 ptr = mgmt_ie_buf;
3728
3729 remained_buf_len = mgmt_ie_buf_len;
3730
3731 /* make a command to add new ie */
3732 for (i = 0; i < new_vndr_ies.count; i++) {
3733 vndrie_info = &new_vndr_ies.ie_info[i];
3734
3735 /* verify remained buf size before copy data */
3736 if (remained_buf_len < (vndrie_info->vndrie.len +
3737 VNDR_IE_VSIE_OFFSET)) {
3738 brcmf_err("no space in mgmt_ie_buf: len left %d",
3739 remained_buf_len);
3740 break;
3741 }
3742 remained_buf_len -= (vndrie_info->ie_len +
3743 VNDR_IE_VSIE_OFFSET);
3744
3745 brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n",
3746 vndrie_info->vndrie.id,
3747 vndrie_info->vndrie.len,
3748 vndrie_info->vndrie.oui[0],
3749 vndrie_info->vndrie.oui[1],
3750 vndrie_info->vndrie.oui[2]);
3751
3752 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3753 vndrie_info->ie_ptr,
3754 vndrie_info->ie_len,
3755 "add");
3756
3757 /* save the parsed IE in wl struct */
3758 memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr,
3759 vndrie_info->ie_len);
3760 *mgmt_ie_len += vndrie_info->ie_len;
3761
3762 curr_ie_buf += del_add_ie_buf_len;
3763 total_ie_buf_len += del_add_ie_buf_len;
3764 }
3765 }
3766 if (total_ie_buf_len) {
3767 err = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf,
3768 total_ie_buf_len);
3769 if (err)
3770 brcmf_err("vndr ie set error : %d\n", err);
3771 }
3772
3773 exit:
3774 kfree(iovar_ie_buf);
3775 return err;
3776 }
3777
3778 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif)
3779 {
3780 s32 pktflags[] = {
3781 BRCMF_VNDR_IE_PRBREQ_FLAG,
3782 BRCMF_VNDR_IE_PRBRSP_FLAG,
3783 BRCMF_VNDR_IE_BEACON_FLAG
3784 };
3785 int i;
3786
3787 for (i = 0; i < ARRAY_SIZE(pktflags); i++)
3788 brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0);
3789
3790 memset(&vif->saved_ie, 0, sizeof(vif->saved_ie));
3791 return 0;
3792 }
3793
3794 static s32
3795 brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif,
3796 struct cfg80211_beacon_data *beacon)
3797 {
3798 s32 err;
3799
3800 /* Set Beacon IEs to FW */
3801 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG,
3802 beacon->tail, beacon->tail_len);
3803 if (err) {
3804 brcmf_err("Set Beacon IE Failed\n");
3805 return err;
3806 }
3807 brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n");
3808
3809 /* Set Probe Response IEs to FW */
3810 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG,
3811 beacon->proberesp_ies,
3812 beacon->proberesp_ies_len);
3813 if (err)
3814 brcmf_err("Set Probe Resp IE Failed\n");
3815 else
3816 brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n");
3817
3818 return err;
3819 }
3820
3821 static s32
3822 brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
3823 struct cfg80211_ap_settings *settings)
3824 {
3825 s32 ie_offset;
3826 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3827 struct brcmf_if *ifp = netdev_priv(ndev);
3828 const struct brcmf_tlv *ssid_ie;
3829 struct brcmf_ssid_le ssid_le;
3830 s32 err = -EPERM;
3831 const struct brcmf_tlv *rsn_ie;
3832 const struct brcmf_vs_tlv *wpa_ie;
3833 struct brcmf_join_params join_params;
3834 enum nl80211_iftype dev_role;
3835 struct brcmf_fil_bss_enable_le bss_enable;
3836 u16 chanspec;
3837
3838 brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n",
3839 settings->chandef.chan->hw_value,
3840 settings->chandef.center_freq1, settings->chandef.width,
3841 settings->beacon_interval, settings->dtim_period);
3842 brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n",
3843 settings->ssid, settings->ssid_len, settings->auth_type,
3844 settings->inactivity_timeout);
3845
3846 dev_role = ifp->vif->wdev.iftype;
3847
3848 memset(&ssid_le, 0, sizeof(ssid_le));
3849 if (settings->ssid == NULL || settings->ssid_len == 0) {
3850 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN;
3851 ssid_ie = brcmf_parse_tlvs(
3852 (u8 *)&settings->beacon.head[ie_offset],
3853 settings->beacon.head_len - ie_offset,
3854 WLAN_EID_SSID);
3855 if (!ssid_ie)
3856 return -EINVAL;
3857
3858 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len);
3859 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len);
3860 brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID);
3861 } else {
3862 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len);
3863 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
3864 }
3865
3866 brcmf_set_mpc(ifp, 0);
3867 brcmf_configure_arp_offload(ifp, false);
3868
3869 /* find the RSN_IE */
3870 rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
3871 settings->beacon.tail_len, WLAN_EID_RSN);
3872
3873 /* find the WPA_IE */
3874 wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail,
3875 settings->beacon.tail_len);
3876
3877 if ((wpa_ie != NULL || rsn_ie != NULL)) {
3878 brcmf_dbg(TRACE, "WPA(2) IE is found\n");
3879 if (wpa_ie != NULL) {
3880 /* WPA IE */
3881 err = brcmf_configure_wpaie(ndev, wpa_ie, false);
3882 if (err < 0)
3883 goto exit;
3884 } else {
3885 /* RSN IE */
3886 err = brcmf_configure_wpaie(ndev,
3887 (struct brcmf_vs_tlv *)rsn_ie, true);
3888 if (err < 0)
3889 goto exit;
3890 }
3891 } else {
3892 brcmf_dbg(TRACE, "No WPA(2) IEs found\n");
3893 brcmf_configure_opensecurity(ifp);
3894 }
3895
3896 brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon);
3897
3898 chanspec = chandef_to_chanspec(&cfg->d11inf, &settings->chandef);
3899 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
3900 if (err < 0) {
3901 brcmf_err("Set Channel failed: chspec=%d, %d\n", chanspec, err);
3902 goto exit;
3903 }
3904
3905 if (settings->beacon_interval) {
3906 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
3907 settings->beacon_interval);
3908 if (err < 0) {
3909 brcmf_err("Beacon Interval Set Error, %d\n", err);
3910 goto exit;
3911 }
3912 }
3913 if (settings->dtim_period) {
3914 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD,
3915 settings->dtim_period);
3916 if (err < 0) {
3917 brcmf_err("DTIM Interval Set Error, %d\n", err);
3918 goto exit;
3919 }
3920 }
3921
3922 if (dev_role == NL80211_IFTYPE_AP) {
3923 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
3924 if (err < 0) {
3925 brcmf_err("BRCMF_C_DOWN error %d\n", err);
3926 goto exit;
3927 }
3928 brcmf_fil_iovar_int_set(ifp, "apsta", 0);
3929 }
3930
3931 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
3932 if (err < 0) {
3933 brcmf_err("SET INFRA error %d\n", err);
3934 goto exit;
3935 }
3936 if (dev_role == NL80211_IFTYPE_AP) {
3937 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
3938 if (err < 0) {
3939 brcmf_err("setting AP mode failed %d\n", err);
3940 goto exit;
3941 }
3942 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
3943 if (err < 0) {
3944 brcmf_err("BRCMF_C_UP error (%d)\n", err);
3945 goto exit;
3946 }
3947
3948 memset(&join_params, 0, sizeof(join_params));
3949 /* join parameters starts with ssid */
3950 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
3951 /* create softap */
3952 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
3953 &join_params, sizeof(join_params));
3954 if (err < 0) {
3955 brcmf_err("SET SSID error (%d)\n", err);
3956 goto exit;
3957 }
3958 brcmf_dbg(TRACE, "AP mode configuration complete\n");
3959 } else {
3960 err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le,
3961 sizeof(ssid_le));
3962 if (err < 0) {
3963 brcmf_err("setting ssid failed %d\n", err);
3964 goto exit;
3965 }
3966 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
3967 bss_enable.enable = cpu_to_le32(1);
3968 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
3969 sizeof(bss_enable));
3970 if (err < 0) {
3971 brcmf_err("bss_enable config failed %d\n", err);
3972 goto exit;
3973 }
3974
3975 brcmf_dbg(TRACE, "GO mode configuration complete\n");
3976 }
3977 clear_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
3978 set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
3979
3980 exit:
3981 if (err) {
3982 brcmf_set_mpc(ifp, 1);
3983 brcmf_configure_arp_offload(ifp, true);
3984 }
3985 return err;
3986 }
3987
3988 static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
3989 {
3990 struct brcmf_if *ifp = netdev_priv(ndev);
3991 s32 err;
3992 struct brcmf_fil_bss_enable_le bss_enable;
3993 struct brcmf_join_params join_params;
3994
3995 brcmf_dbg(TRACE, "Enter\n");
3996
3997 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_AP) {
3998 /* Due to most likely deauths outstanding we sleep */
3999 /* first to make sure they get processed by fw. */
4000 msleep(400);
4001
4002 memset(&join_params, 0, sizeof(join_params));
4003 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
4004 &join_params, sizeof(join_params));
4005 if (err < 0)
4006 brcmf_err("SET SSID error (%d)\n", err);
4007 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
4008 if (err < 0)
4009 brcmf_err("BRCMF_C_UP error %d\n", err);
4010 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0);
4011 if (err < 0)
4012 brcmf_err("setting AP mode failed %d\n", err);
4013 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0);
4014 if (err < 0)
4015 brcmf_err("setting INFRA mode failed %d\n", err);
4016 } else {
4017 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
4018 bss_enable.enable = cpu_to_le32(0);
4019 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
4020 sizeof(bss_enable));
4021 if (err < 0)
4022 brcmf_err("bss_enable config failed %d\n", err);
4023 }
4024 brcmf_set_mpc(ifp, 1);
4025 brcmf_configure_arp_offload(ifp, true);
4026 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
4027 clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
4028
4029 return err;
4030 }
4031
4032 static s32
4033 brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev,
4034 struct cfg80211_beacon_data *info)
4035 {
4036 struct brcmf_if *ifp = netdev_priv(ndev);
4037 s32 err;
4038
4039 brcmf_dbg(TRACE, "Enter\n");
4040
4041 err = brcmf_config_ap_mgmt_ie(ifp->vif, info);
4042
4043 return err;
4044 }
4045
4046 static int
4047 brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev,
4048 const u8 *mac)
4049 {
4050 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4051 struct brcmf_scb_val_le scbval;
4052 struct brcmf_if *ifp = netdev_priv(ndev);
4053 s32 err;
4054
4055 if (!mac)
4056 return -EFAULT;
4057
4058 brcmf_dbg(TRACE, "Enter %pM\n", mac);
4059
4060 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
4061 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
4062 if (!check_vif_up(ifp->vif))
4063 return -EIO;
4064
4065 memcpy(&scbval.ea, mac, ETH_ALEN);
4066 scbval.val = cpu_to_le32(WLAN_REASON_DEAUTH_LEAVING);
4067 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON,
4068 &scbval, sizeof(scbval));
4069 if (err)
4070 brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err);
4071
4072 brcmf_dbg(TRACE, "Exit\n");
4073 return err;
4074 }
4075
4076
4077 static void
4078 brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
4079 struct wireless_dev *wdev,
4080 u16 frame_type, bool reg)
4081 {
4082 struct brcmf_cfg80211_vif *vif;
4083 u16 mgmt_type;
4084
4085 brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg);
4086
4087 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
4088 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4089 if (reg)
4090 vif->mgmt_rx_reg |= BIT(mgmt_type);
4091 else
4092 vif->mgmt_rx_reg &= ~BIT(mgmt_type);
4093 }
4094
4095
4096 static int
4097 brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
4098 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
4099 {
4100 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4101 struct ieee80211_channel *chan = params->chan;
4102 const u8 *buf = params->buf;
4103 size_t len = params->len;
4104 const struct ieee80211_mgmt *mgmt;
4105 struct brcmf_cfg80211_vif *vif;
4106 s32 err = 0;
4107 s32 ie_offset;
4108 s32 ie_len;
4109 struct brcmf_fil_action_frame_le *action_frame;
4110 struct brcmf_fil_af_params_le *af_params;
4111 bool ack;
4112 s32 chan_nr;
4113 u32 freq;
4114
4115 brcmf_dbg(TRACE, "Enter\n");
4116
4117 *cookie = 0;
4118
4119 mgmt = (const struct ieee80211_mgmt *)buf;
4120
4121 if (!ieee80211_is_mgmt(mgmt->frame_control)) {
4122 brcmf_err("Driver only allows MGMT packet type\n");
4123 return -EPERM;
4124 }
4125
4126 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4127
4128 if (ieee80211_is_probe_resp(mgmt->frame_control)) {
4129 /* Right now the only reason to get a probe response */
4130 /* is for p2p listen response or for p2p GO from */
4131 /* wpa_supplicant. Unfortunately the probe is send */
4132 /* on primary ndev, while dongle wants it on the p2p */
4133 /* vif. Since this is only reason for a probe */
4134 /* response to be sent, the vif is taken from cfg. */
4135 /* If ever desired to send proberesp for non p2p */
4136 /* response then data should be checked for */
4137 /* "DIRECT-". Note in future supplicant will take */
4138 /* dedicated p2p wdev to do this and then this 'hack'*/
4139 /* is not needed anymore. */
4140 ie_offset = DOT11_MGMT_HDR_LEN +
4141 DOT11_BCN_PRB_FIXED_LEN;
4142 ie_len = len - ie_offset;
4143 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif)
4144 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4145 err = brcmf_vif_set_mgmt_ie(vif,
4146 BRCMF_VNDR_IE_PRBRSP_FLAG,
4147 &buf[ie_offset],
4148 ie_len);
4149 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
4150 GFP_KERNEL);
4151 } else if (ieee80211_is_action(mgmt->frame_control)) {
4152 af_params = kzalloc(sizeof(*af_params), GFP_KERNEL);
4153 if (af_params == NULL) {
4154 brcmf_err("unable to allocate frame\n");
4155 err = -ENOMEM;
4156 goto exit;
4157 }
4158 action_frame = &af_params->action_frame;
4159 /* Add the packet Id */
4160 action_frame->packet_id = cpu_to_le32(*cookie);
4161 /* Add BSSID */
4162 memcpy(&action_frame->da[0], &mgmt->da[0], ETH_ALEN);
4163 memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN);
4164 /* Add the length exepted for 802.11 header */
4165 action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN);
4166 /* Add the channel. Use the one specified as parameter if any or
4167 * the current one (got from the firmware) otherwise
4168 */
4169 if (chan)
4170 freq = chan->center_freq;
4171 else
4172 brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL,
4173 &freq);
4174 chan_nr = ieee80211_frequency_to_channel(freq);
4175 af_params->channel = cpu_to_le32(chan_nr);
4176
4177 memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN],
4178 le16_to_cpu(action_frame->len));
4179
4180 brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n",
4181 *cookie, le16_to_cpu(action_frame->len), freq);
4182
4183 ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg),
4184 af_params);
4185
4186 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack,
4187 GFP_KERNEL);
4188 kfree(af_params);
4189 } else {
4190 brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control);
4191 brcmf_dbg_hex_dump(true, buf, len, "payload, len=%Zu\n", len);
4192 }
4193
4194 exit:
4195 return err;
4196 }
4197
4198
4199 static int
4200 brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
4201 struct wireless_dev *wdev,
4202 u64 cookie)
4203 {
4204 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4205 struct brcmf_cfg80211_vif *vif;
4206 int err = 0;
4207
4208 brcmf_dbg(TRACE, "Enter p2p listen cancel\n");
4209
4210 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4211 if (vif == NULL) {
4212 brcmf_err("No p2p device available for probe response\n");
4213 err = -ENODEV;
4214 goto exit;
4215 }
4216 brcmf_p2p_cancel_remain_on_channel(vif->ifp);
4217 exit:
4218 return err;
4219 }
4220
4221 static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy,
4222 struct wireless_dev *wdev,
4223 enum nl80211_crit_proto_id proto,
4224 u16 duration)
4225 {
4226 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4227 struct brcmf_cfg80211_vif *vif;
4228
4229 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4230
4231 /* only DHCP support for now */
4232 if (proto != NL80211_CRIT_PROTO_DHCP)
4233 return -EINVAL;
4234
4235 /* suppress and abort scanning */
4236 set_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4237 brcmf_abort_scanning(cfg);
4238
4239 return brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_DISABLED, duration);
4240 }
4241
4242 static void brcmf_cfg80211_crit_proto_stop(struct wiphy *wiphy,
4243 struct wireless_dev *wdev)
4244 {
4245 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4246 struct brcmf_cfg80211_vif *vif;
4247
4248 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4249
4250 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
4251 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4252 }
4253
4254 static s32
4255 brcmf_notify_tdls_peer_event(struct brcmf_if *ifp,
4256 const struct brcmf_event_msg *e, void *data)
4257 {
4258 switch (e->reason) {
4259 case BRCMF_E_REASON_TDLS_PEER_DISCOVERED:
4260 brcmf_dbg(TRACE, "TDLS Peer Discovered\n");
4261 break;
4262 case BRCMF_E_REASON_TDLS_PEER_CONNECTED:
4263 brcmf_dbg(TRACE, "TDLS Peer Connected\n");
4264 brcmf_proto_add_tdls_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4265 break;
4266 case BRCMF_E_REASON_TDLS_PEER_DISCONNECTED:
4267 brcmf_dbg(TRACE, "TDLS Peer Disconnected\n");
4268 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4269 break;
4270 }
4271
4272 return 0;
4273 }
4274
4275 static int brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper)
4276 {
4277 int ret;
4278
4279 switch (oper) {
4280 case NL80211_TDLS_DISCOVERY_REQ:
4281 ret = BRCMF_TDLS_MANUAL_EP_DISCOVERY;
4282 break;
4283 case NL80211_TDLS_SETUP:
4284 ret = BRCMF_TDLS_MANUAL_EP_CREATE;
4285 break;
4286 case NL80211_TDLS_TEARDOWN:
4287 ret = BRCMF_TDLS_MANUAL_EP_DELETE;
4288 break;
4289 default:
4290 brcmf_err("unsupported operation: %d\n", oper);
4291 ret = -EOPNOTSUPP;
4292 }
4293 return ret;
4294 }
4295
4296 static int brcmf_cfg80211_tdls_oper(struct wiphy *wiphy,
4297 struct net_device *ndev, const u8 *peer,
4298 enum nl80211_tdls_operation oper)
4299 {
4300 struct brcmf_if *ifp;
4301 struct brcmf_tdls_iovar_le info;
4302 int ret = 0;
4303
4304 ret = brcmf_convert_nl80211_tdls_oper(oper);
4305 if (ret < 0)
4306 return ret;
4307
4308 ifp = netdev_priv(ndev);
4309 memset(&info, 0, sizeof(info));
4310 info.mode = (u8)ret;
4311 if (peer)
4312 memcpy(info.ea, peer, ETH_ALEN);
4313
4314 ret = brcmf_fil_iovar_data_set(ifp, "tdls_endpoint",
4315 &info, sizeof(info));
4316 if (ret < 0)
4317 brcmf_err("tdls_endpoint iovar failed: ret=%d\n", ret);
4318
4319 return ret;
4320 }
4321
4322 static struct cfg80211_ops wl_cfg80211_ops = {
4323 .add_virtual_intf = brcmf_cfg80211_add_iface,
4324 .del_virtual_intf = brcmf_cfg80211_del_iface,
4325 .change_virtual_intf = brcmf_cfg80211_change_iface,
4326 .scan = brcmf_cfg80211_scan,
4327 .set_wiphy_params = brcmf_cfg80211_set_wiphy_params,
4328 .join_ibss = brcmf_cfg80211_join_ibss,
4329 .leave_ibss = brcmf_cfg80211_leave_ibss,
4330 .get_station = brcmf_cfg80211_get_station,
4331 .set_tx_power = brcmf_cfg80211_set_tx_power,
4332 .get_tx_power = brcmf_cfg80211_get_tx_power,
4333 .add_key = brcmf_cfg80211_add_key,
4334 .del_key = brcmf_cfg80211_del_key,
4335 .get_key = brcmf_cfg80211_get_key,
4336 .set_default_key = brcmf_cfg80211_config_default_key,
4337 .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key,
4338 .set_power_mgmt = brcmf_cfg80211_set_power_mgmt,
4339 .connect = brcmf_cfg80211_connect,
4340 .disconnect = brcmf_cfg80211_disconnect,
4341 .suspend = brcmf_cfg80211_suspend,
4342 .resume = brcmf_cfg80211_resume,
4343 .set_pmksa = brcmf_cfg80211_set_pmksa,
4344 .del_pmksa = brcmf_cfg80211_del_pmksa,
4345 .flush_pmksa = brcmf_cfg80211_flush_pmksa,
4346 .start_ap = brcmf_cfg80211_start_ap,
4347 .stop_ap = brcmf_cfg80211_stop_ap,
4348 .change_beacon = brcmf_cfg80211_change_beacon,
4349 .del_station = brcmf_cfg80211_del_station,
4350 .sched_scan_start = brcmf_cfg80211_sched_scan_start,
4351 .sched_scan_stop = brcmf_cfg80211_sched_scan_stop,
4352 .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register,
4353 .mgmt_tx = brcmf_cfg80211_mgmt_tx,
4354 .remain_on_channel = brcmf_p2p_remain_on_channel,
4355 .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel,
4356 .start_p2p_device = brcmf_p2p_start_device,
4357 .stop_p2p_device = brcmf_p2p_stop_device,
4358 .crit_proto_start = brcmf_cfg80211_crit_proto_start,
4359 .crit_proto_stop = brcmf_cfg80211_crit_proto_stop,
4360 .tdls_oper = brcmf_cfg80211_tdls_oper,
4361 };
4362
4363 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
4364 enum nl80211_iftype type,
4365 bool pm_block)
4366 {
4367 struct brcmf_cfg80211_vif *vif;
4368
4369 brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n",
4370 sizeof(*vif));
4371 vif = kzalloc(sizeof(*vif), GFP_KERNEL);
4372 if (!vif)
4373 return ERR_PTR(-ENOMEM);
4374
4375 vif->wdev.wiphy = cfg->wiphy;
4376 vif->wdev.iftype = type;
4377
4378 vif->pm_block = pm_block;
4379 vif->roam_off = -1;
4380
4381 brcmf_init_prof(&vif->profile);
4382
4383 list_add_tail(&vif->list, &cfg->vif_list);
4384 return vif;
4385 }
4386
4387 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif)
4388 {
4389 list_del(&vif->list);
4390 kfree(vif);
4391 }
4392
4393 void brcmf_cfg80211_free_netdev(struct net_device *ndev)
4394 {
4395 struct brcmf_cfg80211_vif *vif;
4396 struct brcmf_if *ifp;
4397
4398 ifp = netdev_priv(ndev);
4399 vif = ifp->vif;
4400
4401 brcmf_free_vif(vif);
4402 free_netdev(ndev);
4403 }
4404
4405 static bool brcmf_is_linkup(const struct brcmf_event_msg *e)
4406 {
4407 u32 event = e->event_code;
4408 u32 status = e->status;
4409
4410 if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) {
4411 brcmf_dbg(CONN, "Processing set ssid\n");
4412 return true;
4413 }
4414
4415 return false;
4416 }
4417
4418 static bool brcmf_is_linkdown(const struct brcmf_event_msg *e)
4419 {
4420 u32 event = e->event_code;
4421 u16 flags = e->flags;
4422
4423 if ((event == BRCMF_E_DEAUTH) || (event == BRCMF_E_DEAUTH_IND) ||
4424 (event == BRCMF_E_DISASSOC_IND) ||
4425 ((event == BRCMF_E_LINK) && (!(flags & BRCMF_EVENT_MSG_LINK)))) {
4426 brcmf_dbg(CONN, "Processing link down\n");
4427 return true;
4428 }
4429 return false;
4430 }
4431
4432 static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg,
4433 const struct brcmf_event_msg *e)
4434 {
4435 u32 event = e->event_code;
4436 u32 status = e->status;
4437
4438 if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) {
4439 brcmf_dbg(CONN, "Processing Link %s & no network found\n",
4440 e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down");
4441 return true;
4442 }
4443
4444 if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) {
4445 brcmf_dbg(CONN, "Processing connecting & no network found\n");
4446 return true;
4447 }
4448
4449 return false;
4450 }
4451
4452 static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg)
4453 {
4454 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4455
4456 kfree(conn_info->req_ie);
4457 conn_info->req_ie = NULL;
4458 conn_info->req_ie_len = 0;
4459 kfree(conn_info->resp_ie);
4460 conn_info->resp_ie = NULL;
4461 conn_info->resp_ie_len = 0;
4462 }
4463
4464 static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg,
4465 struct brcmf_if *ifp)
4466 {
4467 struct brcmf_cfg80211_assoc_ielen_le *assoc_info;
4468 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4469 u32 req_len;
4470 u32 resp_len;
4471 s32 err = 0;
4472
4473 brcmf_clear_assoc_ies(cfg);
4474
4475 err = brcmf_fil_iovar_data_get(ifp, "assoc_info",
4476 cfg->extra_buf, WL_ASSOC_INFO_MAX);
4477 if (err) {
4478 brcmf_err("could not get assoc info (%d)\n", err);
4479 return err;
4480 }
4481 assoc_info =
4482 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf;
4483 req_len = le32_to_cpu(assoc_info->req_len);
4484 resp_len = le32_to_cpu(assoc_info->resp_len);
4485 if (req_len) {
4486 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies",
4487 cfg->extra_buf,
4488 WL_ASSOC_INFO_MAX);
4489 if (err) {
4490 brcmf_err("could not get assoc req (%d)\n", err);
4491 return err;
4492 }
4493 conn_info->req_ie_len = req_len;
4494 conn_info->req_ie =
4495 kmemdup(cfg->extra_buf, conn_info->req_ie_len,
4496 GFP_KERNEL);
4497 } else {
4498 conn_info->req_ie_len = 0;
4499 conn_info->req_ie = NULL;
4500 }
4501 if (resp_len) {
4502 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies",
4503 cfg->extra_buf,
4504 WL_ASSOC_INFO_MAX);
4505 if (err) {
4506 brcmf_err("could not get assoc resp (%d)\n", err);
4507 return err;
4508 }
4509 conn_info->resp_ie_len = resp_len;
4510 conn_info->resp_ie =
4511 kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
4512 GFP_KERNEL);
4513 } else {
4514 conn_info->resp_ie_len = 0;
4515 conn_info->resp_ie = NULL;
4516 }
4517 brcmf_dbg(CONN, "req len (%d) resp len (%d)\n",
4518 conn_info->req_ie_len, conn_info->resp_ie_len);
4519
4520 return err;
4521 }
4522
4523 static s32
4524 brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg,
4525 struct net_device *ndev,
4526 const struct brcmf_event_msg *e)
4527 {
4528 struct brcmf_if *ifp = netdev_priv(ndev);
4529 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4530 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4531 struct wiphy *wiphy = cfg_to_wiphy(cfg);
4532 struct ieee80211_channel *notify_channel = NULL;
4533 struct ieee80211_supported_band *band;
4534 struct brcmf_bss_info_le *bi;
4535 struct brcmu_chan ch;
4536 u32 freq;
4537 s32 err = 0;
4538 u8 *buf;
4539
4540 brcmf_dbg(TRACE, "Enter\n");
4541
4542 brcmf_get_assoc_ies(cfg, ifp);
4543 memcpy(profile->bssid, e->addr, ETH_ALEN);
4544 brcmf_update_bss_info(cfg, ifp);
4545
4546 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
4547 if (buf == NULL) {
4548 err = -ENOMEM;
4549 goto done;
4550 }
4551
4552 /* data sent to dongle has to be little endian */
4553 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
4554 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
4555 buf, WL_BSS_INFO_MAX);
4556
4557 if (err)
4558 goto done;
4559
4560 bi = (struct brcmf_bss_info_le *)(buf + 4);
4561 ch.chspec = le16_to_cpu(bi->chanspec);
4562 cfg->d11inf.decchspec(&ch);
4563
4564 if (ch.band == BRCMU_CHAN_BAND_2G)
4565 band = wiphy->bands[IEEE80211_BAND_2GHZ];
4566 else
4567 band = wiphy->bands[IEEE80211_BAND_5GHZ];
4568
4569 freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
4570 notify_channel = ieee80211_get_channel(wiphy, freq);
4571
4572 done:
4573 kfree(buf);
4574 cfg80211_roamed(ndev, notify_channel, (u8 *)profile->bssid,
4575 conn_info->req_ie, conn_info->req_ie_len,
4576 conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL);
4577 brcmf_dbg(CONN, "Report roaming result\n");
4578
4579 set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
4580 brcmf_dbg(TRACE, "Exit\n");
4581 return err;
4582 }
4583
4584 static s32
4585 brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
4586 struct net_device *ndev, const struct brcmf_event_msg *e,
4587 bool completed)
4588 {
4589 struct brcmf_if *ifp = netdev_priv(ndev);
4590 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4591 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4592
4593 brcmf_dbg(TRACE, "Enter\n");
4594
4595 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4596 &ifp->vif->sme_state)) {
4597 if (completed) {
4598 brcmf_get_assoc_ies(cfg, ifp);
4599 memcpy(profile->bssid, e->addr, ETH_ALEN);
4600 brcmf_update_bss_info(cfg, ifp);
4601 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4602 &ifp->vif->sme_state);
4603 }
4604 cfg80211_connect_result(ndev,
4605 (u8 *)profile->bssid,
4606 conn_info->req_ie,
4607 conn_info->req_ie_len,
4608 conn_info->resp_ie,
4609 conn_info->resp_ie_len,
4610 completed ? WLAN_STATUS_SUCCESS :
4611 WLAN_STATUS_AUTH_TIMEOUT,
4612 GFP_KERNEL);
4613 brcmf_dbg(CONN, "Report connect result - connection %s\n",
4614 completed ? "succeeded" : "failed");
4615 }
4616 brcmf_dbg(TRACE, "Exit\n");
4617 return 0;
4618 }
4619
4620 static s32
4621 brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg,
4622 struct net_device *ndev,
4623 const struct brcmf_event_msg *e, void *data)
4624 {
4625 static int generation;
4626 u32 event = e->event_code;
4627 u32 reason = e->reason;
4628 struct station_info sinfo;
4629
4630 brcmf_dbg(CONN, "event %d, reason %d\n", event, reason);
4631 if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS &&
4632 ndev != cfg_to_ndev(cfg)) {
4633 brcmf_dbg(CONN, "AP mode link down\n");
4634 complete(&cfg->vif_disabled);
4635 return 0;
4636 }
4637
4638 if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) &&
4639 (reason == BRCMF_E_STATUS_SUCCESS)) {
4640 memset(&sinfo, 0, sizeof(sinfo));
4641 sinfo.filled = STATION_INFO_ASSOC_REQ_IES;
4642 if (!data) {
4643 brcmf_err("No IEs present in ASSOC/REASSOC_IND");
4644 return -EINVAL;
4645 }
4646 sinfo.assoc_req_ies = data;
4647 sinfo.assoc_req_ies_len = e->datalen;
4648 generation++;
4649 sinfo.generation = generation;
4650 cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_KERNEL);
4651 } else if ((event == BRCMF_E_DISASSOC_IND) ||
4652 (event == BRCMF_E_DEAUTH_IND) ||
4653 (event == BRCMF_E_DEAUTH)) {
4654 cfg80211_del_sta(ndev, e->addr, GFP_KERNEL);
4655 }
4656 return 0;
4657 }
4658
4659 static s32
4660 brcmf_notify_connect_status(struct brcmf_if *ifp,
4661 const struct brcmf_event_msg *e, void *data)
4662 {
4663 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4664 struct net_device *ndev = ifp->ndev;
4665 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4666 struct ieee80211_channel *chan;
4667 s32 err = 0;
4668
4669 if ((e->event_code == BRCMF_E_DEAUTH) ||
4670 (e->event_code == BRCMF_E_DEAUTH_IND) ||
4671 (e->event_code == BRCMF_E_DISASSOC_IND) ||
4672 ((e->event_code == BRCMF_E_LINK) && (!e->flags))) {
4673 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4674 }
4675
4676 if (brcmf_is_apmode(ifp->vif)) {
4677 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data);
4678 } else if (brcmf_is_linkup(e)) {
4679 brcmf_dbg(CONN, "Linkup\n");
4680 if (brcmf_is_ibssmode(ifp->vif)) {
4681 chan = ieee80211_get_channel(cfg->wiphy, cfg->channel);
4682 memcpy(profile->bssid, e->addr, ETH_ALEN);
4683 wl_inform_ibss(cfg, ndev, e->addr);
4684 cfg80211_ibss_joined(ndev, e->addr, chan, GFP_KERNEL);
4685 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4686 &ifp->vif->sme_state);
4687 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4688 &ifp->vif->sme_state);
4689 } else
4690 brcmf_bss_connect_done(cfg, ndev, e, true);
4691 } else if (brcmf_is_linkdown(e)) {
4692 brcmf_dbg(CONN, "Linkdown\n");
4693 if (!brcmf_is_ibssmode(ifp->vif)) {
4694 brcmf_bss_connect_done(cfg, ndev, e, false);
4695 }
4696 brcmf_link_down(ifp->vif);
4697 brcmf_init_prof(ndev_to_prof(ndev));
4698 if (ndev != cfg_to_ndev(cfg))
4699 complete(&cfg->vif_disabled);
4700 } else if (brcmf_is_nonetwork(cfg, e)) {
4701 if (brcmf_is_ibssmode(ifp->vif))
4702 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4703 &ifp->vif->sme_state);
4704 else
4705 brcmf_bss_connect_done(cfg, ndev, e, false);
4706 }
4707
4708 return err;
4709 }
4710
4711 static s32
4712 brcmf_notify_roaming_status(struct brcmf_if *ifp,
4713 const struct brcmf_event_msg *e, void *data)
4714 {
4715 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4716 u32 event = e->event_code;
4717 u32 status = e->status;
4718
4719 if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) {
4720 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state))
4721 brcmf_bss_roaming_done(cfg, ifp->ndev, e);
4722 else
4723 brcmf_bss_connect_done(cfg, ifp->ndev, e, true);
4724 }
4725
4726 return 0;
4727 }
4728
4729 static s32
4730 brcmf_notify_mic_status(struct brcmf_if *ifp,
4731 const struct brcmf_event_msg *e, void *data)
4732 {
4733 u16 flags = e->flags;
4734 enum nl80211_key_type key_type;
4735
4736 if (flags & BRCMF_EVENT_MSG_GROUP)
4737 key_type = NL80211_KEYTYPE_GROUP;
4738 else
4739 key_type = NL80211_KEYTYPE_PAIRWISE;
4740
4741 cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1,
4742 NULL, GFP_KERNEL);
4743
4744 return 0;
4745 }
4746
4747 static s32 brcmf_notify_vif_event(struct brcmf_if *ifp,
4748 const struct brcmf_event_msg *e, void *data)
4749 {
4750 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4751 struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data;
4752 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
4753 struct brcmf_cfg80211_vif *vif;
4754
4755 brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfg %u\n",
4756 ifevent->action, ifevent->flags, ifevent->ifidx,
4757 ifevent->bssidx);
4758
4759 mutex_lock(&event->vif_event_lock);
4760 event->action = ifevent->action;
4761 vif = event->vif;
4762
4763 switch (ifevent->action) {
4764 case BRCMF_E_IF_ADD:
4765 /* waiting process may have timed out */
4766 if (!cfg->vif_event.vif) {
4767 mutex_unlock(&event->vif_event_lock);
4768 return -EBADF;
4769 }
4770
4771 ifp->vif = vif;
4772 vif->ifp = ifp;
4773 if (ifp->ndev) {
4774 vif->wdev.netdev = ifp->ndev;
4775 ifp->ndev->ieee80211_ptr = &vif->wdev;
4776 SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy));
4777 }
4778 mutex_unlock(&event->vif_event_lock);
4779 wake_up(&event->vif_wq);
4780 return 0;
4781
4782 case BRCMF_E_IF_DEL:
4783 mutex_unlock(&event->vif_event_lock);
4784 /* event may not be upon user request */
4785 if (brcmf_cfg80211_vif_event_armed(cfg))
4786 wake_up(&event->vif_wq);
4787 return 0;
4788
4789 case BRCMF_E_IF_CHANGE:
4790 mutex_unlock(&event->vif_event_lock);
4791 wake_up(&event->vif_wq);
4792 return 0;
4793
4794 default:
4795 mutex_unlock(&event->vif_event_lock);
4796 break;
4797 }
4798 return -EINVAL;
4799 }
4800
4801 static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf)
4802 {
4803 conf->frag_threshold = (u32)-1;
4804 conf->rts_threshold = (u32)-1;
4805 conf->retry_short = (u32)-1;
4806 conf->retry_long = (u32)-1;
4807 conf->tx_power = -1;
4808 }
4809
4810 static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg)
4811 {
4812 brcmf_fweh_register(cfg->pub, BRCMF_E_LINK,
4813 brcmf_notify_connect_status);
4814 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND,
4815 brcmf_notify_connect_status);
4816 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH,
4817 brcmf_notify_connect_status);
4818 brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND,
4819 brcmf_notify_connect_status);
4820 brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND,
4821 brcmf_notify_connect_status);
4822 brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND,
4823 brcmf_notify_connect_status);
4824 brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM,
4825 brcmf_notify_roaming_status);
4826 brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR,
4827 brcmf_notify_mic_status);
4828 brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID,
4829 brcmf_notify_connect_status);
4830 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND,
4831 brcmf_notify_sched_scan_results);
4832 brcmf_fweh_register(cfg->pub, BRCMF_E_IF,
4833 brcmf_notify_vif_event);
4834 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG,
4835 brcmf_p2p_notify_rx_mgmt_p2p_probereq);
4836 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE,
4837 brcmf_p2p_notify_listen_complete);
4838 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX,
4839 brcmf_p2p_notify_action_frame_rx);
4840 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE,
4841 brcmf_p2p_notify_action_tx_complete);
4842 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE,
4843 brcmf_p2p_notify_action_tx_complete);
4844 }
4845
4846 static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg)
4847 {
4848 kfree(cfg->conf);
4849 cfg->conf = NULL;
4850 kfree(cfg->escan_ioctl_buf);
4851 cfg->escan_ioctl_buf = NULL;
4852 kfree(cfg->extra_buf);
4853 cfg->extra_buf = NULL;
4854 kfree(cfg->pmk_list);
4855 cfg->pmk_list = NULL;
4856 }
4857
4858 static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg)
4859 {
4860 cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL);
4861 if (!cfg->conf)
4862 goto init_priv_mem_out;
4863 cfg->escan_ioctl_buf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
4864 if (!cfg->escan_ioctl_buf)
4865 goto init_priv_mem_out;
4866 cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
4867 if (!cfg->extra_buf)
4868 goto init_priv_mem_out;
4869 cfg->pmk_list = kzalloc(sizeof(*cfg->pmk_list), GFP_KERNEL);
4870 if (!cfg->pmk_list)
4871 goto init_priv_mem_out;
4872
4873 return 0;
4874
4875 init_priv_mem_out:
4876 brcmf_deinit_priv_mem(cfg);
4877
4878 return -ENOMEM;
4879 }
4880
4881 static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg)
4882 {
4883 s32 err = 0;
4884
4885 cfg->scan_request = NULL;
4886 cfg->pwr_save = true;
4887 cfg->active_scan = true; /* we do active scan per default */
4888 cfg->dongle_up = false; /* dongle is not up yet */
4889 err = brcmf_init_priv_mem(cfg);
4890 if (err)
4891 return err;
4892 brcmf_register_event_handlers(cfg);
4893 mutex_init(&cfg->usr_sync);
4894 brcmf_init_escan(cfg);
4895 brcmf_init_conf(cfg->conf);
4896 init_completion(&cfg->vif_disabled);
4897 return err;
4898 }
4899
4900 static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg)
4901 {
4902 cfg->dongle_up = false; /* dongle down */
4903 brcmf_abort_scanning(cfg);
4904 brcmf_deinit_priv_mem(cfg);
4905 }
4906
4907 static void init_vif_event(struct brcmf_cfg80211_vif_event *event)
4908 {
4909 init_waitqueue_head(&event->vif_wq);
4910 mutex_init(&event->vif_event_lock);
4911 }
4912
4913 static s32
4914 brcmf_dongle_roam(struct brcmf_if *ifp, u32 bcn_timeout)
4915 {
4916 s32 err = 0;
4917 __le32 roamtrigger[2];
4918 __le32 roam_delta[2];
4919
4920 /*
4921 * Setup timeout if Beacons are lost and roam is
4922 * off to report link down
4923 */
4924 if (brcmf_roamoff) {
4925 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout);
4926 if (err) {
4927 brcmf_err("bcn_timeout error (%d)\n", err);
4928 goto dongle_rom_out;
4929 }
4930 }
4931
4932 /*
4933 * Enable/Disable built-in roaming to allow supplicant
4934 * to take care of roaming
4935 */
4936 brcmf_dbg(INFO, "Internal Roaming = %s\n",
4937 brcmf_roamoff ? "Off" : "On");
4938 err = brcmf_fil_iovar_int_set(ifp, "roam_off", !!(brcmf_roamoff));
4939 if (err) {
4940 brcmf_err("roam_off error (%d)\n", err);
4941 goto dongle_rom_out;
4942 }
4943
4944 roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL);
4945 roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL);
4946 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER,
4947 (void *)roamtrigger, sizeof(roamtrigger));
4948 if (err) {
4949 brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err);
4950 goto dongle_rom_out;
4951 }
4952
4953 roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA);
4954 roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL);
4955 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA,
4956 (void *)roam_delta, sizeof(roam_delta));
4957 if (err) {
4958 brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err);
4959 goto dongle_rom_out;
4960 }
4961
4962 dongle_rom_out:
4963 return err;
4964 }
4965
4966 static s32
4967 brcmf_dongle_scantime(struct brcmf_if *ifp, s32 scan_assoc_time,
4968 s32 scan_unassoc_time, s32 scan_passive_time)
4969 {
4970 s32 err = 0;
4971
4972 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
4973 scan_assoc_time);
4974 if (err) {
4975 if (err == -EOPNOTSUPP)
4976 brcmf_dbg(INFO, "Scan assoc time is not supported\n");
4977 else
4978 brcmf_err("Scan assoc time error (%d)\n", err);
4979 goto dongle_scantime_out;
4980 }
4981 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
4982 scan_unassoc_time);
4983 if (err) {
4984 if (err == -EOPNOTSUPP)
4985 brcmf_dbg(INFO, "Scan unassoc time is not supported\n");
4986 else
4987 brcmf_err("Scan unassoc time error (%d)\n", err);
4988 goto dongle_scantime_out;
4989 }
4990
4991 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME,
4992 scan_passive_time);
4993 if (err) {
4994 if (err == -EOPNOTSUPP)
4995 brcmf_dbg(INFO, "Scan passive time is not supported\n");
4996 else
4997 brcmf_err("Scan passive time error (%d)\n", err);
4998 goto dongle_scantime_out;
4999 }
5000
5001 dongle_scantime_out:
5002 return err;
5003 }
5004
5005 /* Filter the list of channels received from firmware counting only
5006 * the 20MHz channels. The wiphy band data only needs those which get
5007 * flagged to indicate if they can take part in higher bandwidth.
5008 */
5009 static void brcmf_count_20mhz_channels(struct brcmf_cfg80211_info *cfg,
5010 struct brcmf_chanspec_list *chlist,
5011 u32 chcnt[])
5012 {
5013 u32 total = le32_to_cpu(chlist->count);
5014 struct brcmu_chan ch;
5015 int i;
5016
5017 for (i = 0; i < total; i++) {
5018 ch.chspec = (u16)le32_to_cpu(chlist->element[i]);
5019 cfg->d11inf.decchspec(&ch);
5020
5021 /* Firmware gives a ordered list. We skip non-20MHz
5022 * channels is 2G. For 5G we can abort upon reaching
5023 * a non-20MHz channel in the list.
5024 */
5025 if (ch.bw != BRCMU_CHAN_BW_20) {
5026 if (ch.band == BRCMU_CHAN_BAND_5G)
5027 break;
5028 else
5029 continue;
5030 }
5031
5032 if (ch.band == BRCMU_CHAN_BAND_2G)
5033 chcnt[0] += 1;
5034 else if (ch.band == BRCMU_CHAN_BAND_5G)
5035 chcnt[1] += 1;
5036 }
5037 }
5038
5039 static void brcmf_update_bw40_channel_flag(struct ieee80211_channel *channel,
5040 struct brcmu_chan *ch)
5041 {
5042 u32 ht40_flag;
5043
5044 ht40_flag = channel->flags & IEEE80211_CHAN_NO_HT40;
5045 if (ch->sb == BRCMU_CHAN_SB_U) {
5046 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5047 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5048 channel->flags |= IEEE80211_CHAN_NO_HT40PLUS;
5049 } else {
5050 /* It should be one of
5051 * IEEE80211_CHAN_NO_HT40 or
5052 * IEEE80211_CHAN_NO_HT40PLUS
5053 */
5054 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5055 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5056 channel->flags |= IEEE80211_CHAN_NO_HT40MINUS;
5057 }
5058 }
5059
5060 static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg,
5061 u32 bw_cap[])
5062 {
5063 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5064 struct ieee80211_supported_band *band;
5065 struct ieee80211_channel *channel;
5066 struct wiphy *wiphy;
5067 struct brcmf_chanspec_list *list;
5068 struct brcmu_chan ch;
5069 int err;
5070 u8 *pbuf;
5071 u32 i, j;
5072 u32 total;
5073 u32 chaninfo;
5074 u32 chcnt[2] = { 0, 0 };
5075 u32 index;
5076
5077 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5078
5079 if (pbuf == NULL)
5080 return -ENOMEM;
5081
5082 list = (struct brcmf_chanspec_list *)pbuf;
5083
5084 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5085 BRCMF_DCMD_MEDLEN);
5086 if (err) {
5087 brcmf_err("get chanspecs error (%d)\n", err);
5088 goto fail_pbuf;
5089 }
5090
5091 brcmf_count_20mhz_channels(cfg, list, chcnt);
5092 wiphy = cfg_to_wiphy(cfg);
5093 if (chcnt[0]) {
5094 band = kmemdup(&__wl_band_2ghz, sizeof(__wl_band_2ghz),
5095 GFP_KERNEL);
5096 if (band == NULL) {
5097 err = -ENOMEM;
5098 goto fail_pbuf;
5099 }
5100 band->channels = kcalloc(chcnt[0], sizeof(*channel),
5101 GFP_KERNEL);
5102 if (band->channels == NULL) {
5103 kfree(band);
5104 err = -ENOMEM;
5105 goto fail_pbuf;
5106 }
5107 band->n_channels = 0;
5108 wiphy->bands[IEEE80211_BAND_2GHZ] = band;
5109 }
5110 if (chcnt[1]) {
5111 band = kmemdup(&__wl_band_5ghz_a, sizeof(__wl_band_5ghz_a),
5112 GFP_KERNEL);
5113 if (band == NULL) {
5114 err = -ENOMEM;
5115 goto fail_band2g;
5116 }
5117 band->channels = kcalloc(chcnt[1], sizeof(*channel),
5118 GFP_KERNEL);
5119 if (band->channels == NULL) {
5120 kfree(band);
5121 err = -ENOMEM;
5122 goto fail_band2g;
5123 }
5124 band->n_channels = 0;
5125 wiphy->bands[IEEE80211_BAND_5GHZ] = band;
5126 }
5127
5128 total = le32_to_cpu(list->count);
5129 for (i = 0; i < total; i++) {
5130 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5131 cfg->d11inf.decchspec(&ch);
5132
5133 if (ch.band == BRCMU_CHAN_BAND_2G) {
5134 band = wiphy->bands[IEEE80211_BAND_2GHZ];
5135 } else if (ch.band == BRCMU_CHAN_BAND_5G) {
5136 band = wiphy->bands[IEEE80211_BAND_5GHZ];
5137 } else {
5138 brcmf_err("Invalid channel Spec. 0x%x.\n", ch.chspec);
5139 continue;
5140 }
5141 if (!(bw_cap[band->band] & WLC_BW_40MHZ_BIT) &&
5142 ch.bw == BRCMU_CHAN_BW_40)
5143 continue;
5144 if (!(bw_cap[band->band] & WLC_BW_80MHZ_BIT) &&
5145 ch.bw == BRCMU_CHAN_BW_80)
5146 continue;
5147
5148 channel = band->channels;
5149 index = band->n_channels;
5150 for (j = 0; j < band->n_channels; j++) {
5151 if (channel[j].hw_value == ch.chnum) {
5152 index = j;
5153 break;
5154 }
5155 }
5156 channel[index].center_freq =
5157 ieee80211_channel_to_frequency(ch.chnum, band->band);
5158 channel[index].hw_value = ch.chnum;
5159
5160 /* assuming the chanspecs order is HT20,
5161 * HT40 upper, HT40 lower, and VHT80.
5162 */
5163 if (ch.bw == BRCMU_CHAN_BW_80) {
5164 channel[index].flags &= ~IEEE80211_CHAN_NO_80MHZ;
5165 } else if (ch.bw == BRCMU_CHAN_BW_40) {
5166 brcmf_update_bw40_channel_flag(&channel[index], &ch);
5167 } else {
5168 /* disable other bandwidths for now as mentioned
5169 * order assure they are enabled for subsequent
5170 * chanspecs.
5171 */
5172 channel[index].flags = IEEE80211_CHAN_NO_HT40 |
5173 IEEE80211_CHAN_NO_80MHZ;
5174 ch.bw = BRCMU_CHAN_BW_20;
5175 cfg->d11inf.encchspec(&ch);
5176 chaninfo = ch.chspec;
5177 err = brcmf_fil_bsscfg_int_get(ifp, "per_chan_info",
5178 &chaninfo);
5179 if (!err) {
5180 if (chaninfo & WL_CHAN_RADAR)
5181 channel[index].flags |=
5182 (IEEE80211_CHAN_RADAR |
5183 IEEE80211_CHAN_NO_IR);
5184 if (chaninfo & WL_CHAN_PASSIVE)
5185 channel[index].flags |=
5186 IEEE80211_CHAN_NO_IR;
5187 }
5188 }
5189 if (index == band->n_channels)
5190 band->n_channels++;
5191 }
5192 kfree(pbuf);
5193 return 0;
5194
5195 fail_band2g:
5196 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
5197 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
5198 wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
5199 fail_pbuf:
5200 kfree(pbuf);
5201 return err;
5202 }
5203
5204 static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg)
5205 {
5206 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5207 struct ieee80211_supported_band *band;
5208 struct brcmf_fil_bwcap_le band_bwcap;
5209 struct brcmf_chanspec_list *list;
5210 u8 *pbuf;
5211 u32 val;
5212 int err;
5213 struct brcmu_chan ch;
5214 u32 num_chan;
5215 int i, j;
5216
5217 /* verify support for bw_cap command */
5218 val = WLC_BAND_5G;
5219 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &val);
5220
5221 if (!err) {
5222 /* only set 2G bandwidth using bw_cap command */
5223 band_bwcap.band = cpu_to_le32(WLC_BAND_2G);
5224 band_bwcap.bw_cap = cpu_to_le32(WLC_BW_CAP_40MHZ);
5225 err = brcmf_fil_iovar_data_set(ifp, "bw_cap", &band_bwcap,
5226 sizeof(band_bwcap));
5227 } else {
5228 brcmf_dbg(INFO, "fallback to mimo_bw_cap\n");
5229 val = WLC_N_BW_40ALL;
5230 err = brcmf_fil_iovar_int_set(ifp, "mimo_bw_cap", val);
5231 }
5232
5233 if (!err) {
5234 /* update channel info in 2G band */
5235 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5236
5237 if (pbuf == NULL)
5238 return -ENOMEM;
5239
5240 ch.band = BRCMU_CHAN_BAND_2G;
5241 ch.bw = BRCMU_CHAN_BW_40;
5242 ch.sb = BRCMU_CHAN_SB_NONE;
5243 ch.chnum = 0;
5244 cfg->d11inf.encchspec(&ch);
5245
5246 /* pass encoded chanspec in query */
5247 *(__le16 *)pbuf = cpu_to_le16(ch.chspec);
5248
5249 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5250 BRCMF_DCMD_MEDLEN);
5251 if (err) {
5252 brcmf_err("get chanspecs error (%d)\n", err);
5253 kfree(pbuf);
5254 return err;
5255 }
5256
5257 band = cfg_to_wiphy(cfg)->bands[IEEE80211_BAND_2GHZ];
5258 list = (struct brcmf_chanspec_list *)pbuf;
5259 num_chan = le32_to_cpu(list->count);
5260 for (i = 0; i < num_chan; i++) {
5261 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5262 cfg->d11inf.decchspec(&ch);
5263 if (WARN_ON(ch.band != BRCMU_CHAN_BAND_2G))
5264 continue;
5265 if (WARN_ON(ch.bw != BRCMU_CHAN_BW_40))
5266 continue;
5267 for (j = 0; j < band->n_channels; j++) {
5268 if (band->channels[j].hw_value == ch.chnum)
5269 break;
5270 }
5271 if (WARN_ON(j == band->n_channels))
5272 continue;
5273
5274 brcmf_update_bw40_channel_flag(&band->channels[j], &ch);
5275 }
5276 kfree(pbuf);
5277 }
5278 return err;
5279 }
5280
5281 static void brcmf_get_bwcap(struct brcmf_if *ifp, u32 bw_cap[])
5282 {
5283 u32 band, mimo_bwcap;
5284 int err;
5285
5286 band = WLC_BAND_2G;
5287 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5288 if (!err) {
5289 bw_cap[IEEE80211_BAND_2GHZ] = band;
5290 band = WLC_BAND_5G;
5291 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5292 if (!err) {
5293 bw_cap[IEEE80211_BAND_5GHZ] = band;
5294 return;
5295 }
5296 WARN_ON(1);
5297 return;
5298 }
5299 brcmf_dbg(INFO, "fallback to mimo_bw_cap info\n");
5300 mimo_bwcap = 0;
5301 err = brcmf_fil_iovar_int_get(ifp, "mimo_bw_cap", &mimo_bwcap);
5302 if (err)
5303 /* assume 20MHz if firmware does not give a clue */
5304 mimo_bwcap = WLC_N_BW_20ALL;
5305
5306 switch (mimo_bwcap) {
5307 case WLC_N_BW_40ALL:
5308 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_40MHZ_BIT;
5309 /* fall-thru */
5310 case WLC_N_BW_20IN2G_40IN5G:
5311 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_40MHZ_BIT;
5312 /* fall-thru */
5313 case WLC_N_BW_20ALL:
5314 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_20MHZ_BIT;
5315 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_20MHZ_BIT;
5316 break;
5317 default:
5318 brcmf_err("invalid mimo_bw_cap value\n");
5319 }
5320 }
5321
5322 static void brcmf_update_ht_cap(struct ieee80211_supported_band *band,
5323 u32 bw_cap[2], u32 nchain)
5324 {
5325 band->ht_cap.ht_supported = true;
5326 if (bw_cap[band->band] & WLC_BW_40MHZ_BIT) {
5327 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
5328 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5329 }
5330 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
5331 band->ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
5332 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
5333 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
5334 memset(band->ht_cap.mcs.rx_mask, 0xff, nchain);
5335 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
5336 }
5337
5338 static __le16 brcmf_get_mcs_map(u32 nchain, enum ieee80211_vht_mcs_support supp)
5339 {
5340 u16 mcs_map;
5341 int i;
5342
5343 for (i = 0, mcs_map = 0xFFFF; i < nchain; i++)
5344 mcs_map = (mcs_map << 2) | supp;
5345
5346 return cpu_to_le16(mcs_map);
5347 }
5348
5349 static void brcmf_update_vht_cap(struct ieee80211_supported_band *band,
5350 u32 bw_cap[2], u32 nchain)
5351 {
5352 __le16 mcs_map;
5353
5354 /* not allowed in 2.4G band */
5355 if (band->band == IEEE80211_BAND_2GHZ)
5356 return;
5357
5358 band->vht_cap.vht_supported = true;
5359 /* 80MHz is mandatory */
5360 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_80;
5361 if (bw_cap[band->band] & WLC_BW_160MHZ_BIT) {
5362 band->vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
5363 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_160;
5364 }
5365 /* all support 256-QAM */
5366 mcs_map = brcmf_get_mcs_map(nchain, IEEE80211_VHT_MCS_SUPPORT_0_9);
5367 band->vht_cap.vht_mcs.rx_mcs_map = mcs_map;
5368 band->vht_cap.vht_mcs.tx_mcs_map = mcs_map;
5369 }
5370
5371 static int brcmf_setup_wiphybands(struct wiphy *wiphy)
5372 {
5373 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
5374 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5375 u32 nmode = 0;
5376 u32 vhtmode = 0;
5377 u32 bw_cap[2] = { WLC_BW_20MHZ_BIT, WLC_BW_20MHZ_BIT };
5378 u32 rxchain;
5379 u32 nchain;
5380 int err;
5381 s32 i;
5382 struct ieee80211_supported_band *band;
5383
5384 (void)brcmf_fil_iovar_int_get(ifp, "vhtmode", &vhtmode);
5385 err = brcmf_fil_iovar_int_get(ifp, "nmode", &nmode);
5386 if (err) {
5387 brcmf_err("nmode error (%d)\n", err);
5388 } else {
5389 brcmf_get_bwcap(ifp, bw_cap);
5390 }
5391 brcmf_dbg(INFO, "nmode=%d, vhtmode=%d, bw_cap=(%d, %d)\n",
5392 nmode, vhtmode, bw_cap[IEEE80211_BAND_2GHZ],
5393 bw_cap[IEEE80211_BAND_5GHZ]);
5394
5395 err = brcmf_fil_iovar_int_get(ifp, "rxchain", &rxchain);
5396 if (err) {
5397 brcmf_err("rxchain error (%d)\n", err);
5398 nchain = 1;
5399 } else {
5400 for (nchain = 0; rxchain; nchain++)
5401 rxchain = rxchain & (rxchain - 1);
5402 }
5403 brcmf_dbg(INFO, "nchain=%d\n", nchain);
5404
5405 err = brcmf_construct_chaninfo(cfg, bw_cap);
5406 if (err) {
5407 brcmf_err("brcmf_construct_chaninfo failed (%d)\n", err);
5408 return err;
5409 }
5410
5411 wiphy = cfg_to_wiphy(cfg);
5412 for (i = 0; i < ARRAY_SIZE(wiphy->bands); i++) {
5413 band = wiphy->bands[i];
5414 if (band == NULL)
5415 continue;
5416
5417 if (nmode)
5418 brcmf_update_ht_cap(band, bw_cap, nchain);
5419 if (vhtmode)
5420 brcmf_update_vht_cap(band, bw_cap, nchain);
5421 }
5422
5423 return 0;
5424 }
5425
5426 static const struct ieee80211_iface_limit brcmf_iface_limits[] = {
5427 {
5428 .max = 2,
5429 .types = BIT(NL80211_IFTYPE_STATION) |
5430 BIT(NL80211_IFTYPE_ADHOC) |
5431 BIT(NL80211_IFTYPE_AP)
5432 },
5433 {
5434 .max = 1,
5435 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
5436 BIT(NL80211_IFTYPE_P2P_GO)
5437 },
5438 {
5439 .max = 1,
5440 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
5441 }
5442 };
5443 static struct ieee80211_iface_combination brcmf_iface_combos[] = {
5444 {
5445 .max_interfaces = BRCMF_IFACE_MAX_CNT,
5446 .num_different_channels = 1,
5447 .n_limits = ARRAY_SIZE(brcmf_iface_limits),
5448 .limits = brcmf_iface_limits
5449 }
5450 };
5451
5452 static const struct ieee80211_txrx_stypes
5453 brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = {
5454 [NL80211_IFTYPE_STATION] = {
5455 .tx = 0xffff,
5456 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5457 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5458 },
5459 [NL80211_IFTYPE_P2P_CLIENT] = {
5460 .tx = 0xffff,
5461 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5462 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5463 },
5464 [NL80211_IFTYPE_P2P_GO] = {
5465 .tx = 0xffff,
5466 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
5467 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
5468 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
5469 BIT(IEEE80211_STYPE_DISASSOC >> 4) |
5470 BIT(IEEE80211_STYPE_AUTH >> 4) |
5471 BIT(IEEE80211_STYPE_DEAUTH >> 4) |
5472 BIT(IEEE80211_STYPE_ACTION >> 4)
5473 },
5474 [NL80211_IFTYPE_P2P_DEVICE] = {
5475 .tx = 0xffff,
5476 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5477 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5478 }
5479 };
5480
5481 static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
5482 {
5483 /* scheduled scan settings */
5484 wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT;
5485 wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
5486 wiphy->max_sched_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5487 wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
5488 }
5489
5490 #ifdef CONFIG_PM
5491 static const struct wiphy_wowlan_support brcmf_wowlan_support = {
5492 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
5493 .n_patterns = BRCMF_WOWL_MAXPATTERNS,
5494 .pattern_max_len = BRCMF_WOWL_MAXPATTERNSIZE,
5495 .pattern_min_len = 1,
5496 .max_pkt_offset = 1500,
5497 };
5498 #endif
5499
5500 static void brcmf_wiphy_wowl_params(struct wiphy *wiphy)
5501 {
5502 #ifdef CONFIG_PM
5503 /* wowl settings */
5504 wiphy->wowlan = &brcmf_wowlan_support;
5505 #endif
5506 }
5507
5508 static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
5509 {
5510 struct ieee80211_iface_combination ifc_combo;
5511 wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
5512 wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5513 wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX;
5514 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
5515 BIT(NL80211_IFTYPE_ADHOC) |
5516 BIT(NL80211_IFTYPE_AP) |
5517 BIT(NL80211_IFTYPE_P2P_CLIENT) |
5518 BIT(NL80211_IFTYPE_P2P_GO) |
5519 BIT(NL80211_IFTYPE_P2P_DEVICE);
5520 /* need VSDB firmware feature for concurrent channels */
5521 ifc_combo = brcmf_iface_combos[0];
5522 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MCHAN))
5523 ifc_combo.num_different_channels = 2;
5524 wiphy->iface_combinations = kmemdup(&ifc_combo,
5525 sizeof(ifc_combo),
5526 GFP_KERNEL);
5527 wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos);
5528 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
5529 wiphy->cipher_suites = __wl_cipher_suites;
5530 wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites);
5531 wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT |
5532 WIPHY_FLAG_OFFCHAN_TX |
5533 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
5534 WIPHY_FLAG_SUPPORTS_TDLS;
5535 if (!brcmf_roamoff)
5536 wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM;
5537 wiphy->mgmt_stypes = brcmf_txrx_stypes;
5538 wiphy->max_remain_on_channel_duration = 5000;
5539 brcmf_wiphy_pno_params(wiphy);
5540
5541 /* vendor commands/events support */
5542 wiphy->vendor_commands = brcmf_vendor_cmds;
5543 wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1;
5544
5545 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL))
5546 brcmf_wiphy_wowl_params(wiphy);
5547
5548 return brcmf_setup_wiphybands(wiphy);
5549 }
5550
5551 static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)
5552 {
5553 struct net_device *ndev;
5554 struct wireless_dev *wdev;
5555 struct brcmf_if *ifp;
5556 s32 power_mode;
5557 s32 err = 0;
5558
5559 if (cfg->dongle_up)
5560 return err;
5561
5562 ndev = cfg_to_ndev(cfg);
5563 wdev = ndev->ieee80211_ptr;
5564 ifp = netdev_priv(ndev);
5565
5566 /* make sure RF is ready for work */
5567 brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
5568
5569 brcmf_dongle_scantime(ifp, WL_SCAN_CHANNEL_TIME,
5570 WL_SCAN_UNASSOC_TIME, WL_SCAN_PASSIVE_TIME);
5571
5572 power_mode = cfg->pwr_save ? PM_FAST : PM_OFF;
5573 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode);
5574 if (err)
5575 goto default_conf_out;
5576 brcmf_dbg(INFO, "power save set to %s\n",
5577 (power_mode ? "enabled" : "disabled"));
5578
5579 err = brcmf_dongle_roam(ifp, WL_BEACON_TIMEOUT);
5580 if (err)
5581 goto default_conf_out;
5582 err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype,
5583 NULL, NULL);
5584 if (err)
5585 goto default_conf_out;
5586
5587 brcmf_configure_arp_offload(ifp, true);
5588
5589 cfg->dongle_up = true;
5590 default_conf_out:
5591
5592 return err;
5593
5594 }
5595
5596 static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp)
5597 {
5598 set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5599
5600 return brcmf_config_dongle(ifp->drvr->config);
5601 }
5602
5603 static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp)
5604 {
5605 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5606
5607 /*
5608 * While going down, if associated with AP disassociate
5609 * from AP to save power
5610 */
5611 if (check_vif_up(ifp->vif)) {
5612 brcmf_link_down(ifp->vif);
5613
5614 /* Make sure WPA_Supplicant receives all the event
5615 generated due to DISASSOC call to the fw to keep
5616 the state fw and WPA_Supplicant state consistent
5617 */
5618 brcmf_delay(500);
5619 }
5620
5621 brcmf_abort_scanning(cfg);
5622 clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5623
5624 return 0;
5625 }
5626
5627 s32 brcmf_cfg80211_up(struct net_device *ndev)
5628 {
5629 struct brcmf_if *ifp = netdev_priv(ndev);
5630 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5631 s32 err = 0;
5632
5633 mutex_lock(&cfg->usr_sync);
5634 err = __brcmf_cfg80211_up(ifp);
5635 mutex_unlock(&cfg->usr_sync);
5636
5637 return err;
5638 }
5639
5640 s32 brcmf_cfg80211_down(struct net_device *ndev)
5641 {
5642 struct brcmf_if *ifp = netdev_priv(ndev);
5643 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5644 s32 err = 0;
5645
5646 mutex_lock(&cfg->usr_sync);
5647 err = __brcmf_cfg80211_down(ifp);
5648 mutex_unlock(&cfg->usr_sync);
5649
5650 return err;
5651 }
5652
5653 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp)
5654 {
5655 struct wireless_dev *wdev = &ifp->vif->wdev;
5656
5657 return wdev->iftype;
5658 }
5659
5660 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg,
5661 unsigned long state)
5662 {
5663 struct brcmf_cfg80211_vif *vif;
5664
5665 list_for_each_entry(vif, &cfg->vif_list, list) {
5666 if (test_bit(state, &vif->sme_state))
5667 return true;
5668 }
5669 return false;
5670 }
5671
5672 static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event,
5673 u8 action)
5674 {
5675 u8 evt_action;
5676
5677 mutex_lock(&event->vif_event_lock);
5678 evt_action = event->action;
5679 mutex_unlock(&event->vif_event_lock);
5680 return evt_action == action;
5681 }
5682
5683 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
5684 struct brcmf_cfg80211_vif *vif)
5685 {
5686 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5687
5688 mutex_lock(&event->vif_event_lock);
5689 event->vif = vif;
5690 event->action = 0;
5691 mutex_unlock(&event->vif_event_lock);
5692 }
5693
5694 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg)
5695 {
5696 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5697 bool armed;
5698
5699 mutex_lock(&event->vif_event_lock);
5700 armed = event->vif != NULL;
5701 mutex_unlock(&event->vif_event_lock);
5702
5703 return armed;
5704 }
5705 int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
5706 u8 action, ulong timeout)
5707 {
5708 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5709
5710 return wait_event_timeout(event->vif_wq,
5711 vif_event_equals(event, action), timeout);
5712 }
5713
5714 static void brcmf_free_wiphy(struct wiphy *wiphy)
5715 {
5716 kfree(wiphy->iface_combinations);
5717 if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
5718 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
5719 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
5720 }
5721 if (wiphy->bands[IEEE80211_BAND_5GHZ]) {
5722 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]->channels);
5723 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]);
5724 }
5725 wiphy_free(wiphy);
5726 }
5727
5728 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
5729 struct device *busdev)
5730 {
5731 struct net_device *ndev = drvr->iflist[0]->ndev;
5732 struct brcmf_cfg80211_info *cfg;
5733 struct wiphy *wiphy;
5734 struct brcmf_cfg80211_vif *vif;
5735 struct brcmf_if *ifp;
5736 s32 err = 0;
5737 s32 io_type;
5738 u16 *cap = NULL;
5739
5740 if (!ndev) {
5741 brcmf_err("ndev is invalid\n");
5742 return NULL;
5743 }
5744
5745 ifp = netdev_priv(ndev);
5746 wiphy = wiphy_new(&wl_cfg80211_ops, sizeof(struct brcmf_cfg80211_info));
5747 if (!wiphy) {
5748 brcmf_err("Could not allocate wiphy device\n");
5749 return NULL;
5750 }
5751 set_wiphy_dev(wiphy, busdev);
5752
5753 cfg = wiphy_priv(wiphy);
5754 cfg->wiphy = wiphy;
5755 cfg->pub = drvr;
5756 init_vif_event(&cfg->vif_event);
5757 INIT_LIST_HEAD(&cfg->vif_list);
5758
5759 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION, false);
5760 if (IS_ERR(vif))
5761 goto wiphy_out;
5762
5763 vif->ifp = ifp;
5764 vif->wdev.netdev = ndev;
5765 ndev->ieee80211_ptr = &vif->wdev;
5766 SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy));
5767
5768 err = wl_init_priv(cfg);
5769 if (err) {
5770 brcmf_err("Failed to init iwm_priv (%d)\n", err);
5771 brcmf_free_vif(vif);
5772 goto wiphy_out;
5773 }
5774 ifp->vif = vif;
5775
5776 /* determine d11 io type before wiphy setup */
5777 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_VERSION, &io_type);
5778 if (err) {
5779 brcmf_err("Failed to get D11 version (%d)\n", err);
5780 goto priv_out;
5781 }
5782 cfg->d11inf.io_type = (u8)io_type;
5783 brcmu_d11_attach(&cfg->d11inf);
5784
5785 err = brcmf_setup_wiphy(wiphy, ifp);
5786 if (err < 0)
5787 goto priv_out;
5788
5789 brcmf_dbg(INFO, "Registering custom regulatory\n");
5790 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
5791 wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom);
5792
5793 /* firmware defaults to 40MHz disabled in 2G band. We signal
5794 * cfg80211 here that we do and have it decide we can enable
5795 * it. But first check if device does support 2G operation.
5796 */
5797 if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
5798 cap = &wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap.cap;
5799 *cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5800 }
5801 err = wiphy_register(wiphy);
5802 if (err < 0) {
5803 brcmf_err("Could not register wiphy device (%d)\n", err);
5804 goto priv_out;
5805 }
5806
5807 /* If cfg80211 didn't disable 40MHz HT CAP in wiphy_register(),
5808 * setup 40MHz in 2GHz band and enable OBSS scanning.
5809 */
5810 if (cap && (*cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) {
5811 err = brcmf_enable_bw40_2g(cfg);
5812 if (!err)
5813 err = brcmf_fil_iovar_int_set(ifp, "obss_coex",
5814 BRCMF_OBSS_COEX_AUTO);
5815 else
5816 *cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5817 }
5818
5819 err = brcmf_p2p_attach(cfg);
5820 if (err) {
5821 brcmf_err("P2P initilisation failed (%d)\n", err);
5822 goto wiphy_unreg_out;
5823 }
5824 err = brcmf_btcoex_attach(cfg);
5825 if (err) {
5826 brcmf_err("BT-coex initialisation failed (%d)\n", err);
5827 brcmf_p2p_detach(&cfg->p2p);
5828 goto wiphy_unreg_out;
5829 }
5830
5831 err = brcmf_fil_iovar_int_set(ifp, "tdls_enable", 1);
5832 if (err) {
5833 brcmf_dbg(INFO, "TDLS not enabled (%d)\n", err);
5834 wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_TDLS;
5835 } else {
5836 brcmf_fweh_register(cfg->pub, BRCMF_E_TDLS_PEER_EVENT,
5837 brcmf_notify_tdls_peer_event);
5838 }
5839
5840 return cfg;
5841
5842 wiphy_unreg_out:
5843 wiphy_unregister(cfg->wiphy);
5844 priv_out:
5845 wl_deinit_priv(cfg);
5846 brcmf_free_vif(vif);
5847 wiphy_out:
5848 brcmf_free_wiphy(wiphy);
5849 return NULL;
5850 }
5851
5852 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
5853 {
5854 if (!cfg)
5855 return;
5856
5857 WARN_ON(!list_empty(&cfg->vif_list));
5858 wiphy_unregister(cfg->wiphy);
5859 brcmf_btcoex_detach(cfg);
5860 brcmf_p2p_detach(&cfg->p2p);
5861 wl_deinit_priv(cfg);
5862 brcmf_free_wiphy(cfg->wiphy);
5863 }
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