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brcmfmac: correct .disconnect() callback while connecting
[deliverable/linux.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 case NL80211_CHAN_WIDTH_20_NOHT:
303 ch_inf.bw = BRCMU_CHAN_BW_20;
304 WARN_ON(primary_offset != 0);
305 break;
306 case NL80211_CHAN_WIDTH_40:
307 ch_inf.bw = BRCMU_CHAN_BW_40;
308 if (primary_offset < 0)
309 ch_inf.sb = BRCMU_CHAN_SB_U;
310 else
311 ch_inf.sb = BRCMU_CHAN_SB_L;
312 break;
313 case NL80211_CHAN_WIDTH_80:
314 ch_inf.bw = BRCMU_CHAN_BW_80;
315 if (primary_offset < 0) {
316 if (primary_offset < -CH_10MHZ_APART)
317 ch_inf.sb = BRCMU_CHAN_SB_UU;
318 else
319 ch_inf.sb = BRCMU_CHAN_SB_UL;
320 } else {
321 if (primary_offset > CH_10MHZ_APART)
322 ch_inf.sb = BRCMU_CHAN_SB_LL;
323 else
324 ch_inf.sb = BRCMU_CHAN_SB_LU;
325 }
326 break;
327 case NL80211_CHAN_WIDTH_80P80:
328 case NL80211_CHAN_WIDTH_160:
329 case NL80211_CHAN_WIDTH_5:
330 case NL80211_CHAN_WIDTH_10:
331 default:
332 WARN_ON_ONCE(1);
333 }
334 switch (ch->chan->band) {
335 case IEEE80211_BAND_2GHZ:
336 ch_inf.band = BRCMU_CHAN_BAND_2G;
337 break;
338 case IEEE80211_BAND_5GHZ:
339 ch_inf.band = BRCMU_CHAN_BAND_5G;
340 break;
341 case IEEE80211_BAND_60GHZ:
342 default:
343 WARN_ON_ONCE(1);
344 }
345 d11inf->encchspec(&ch_inf);
346
347 return ch_inf.chspec;
348 }
349
350 u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
351 struct ieee80211_channel *ch)
352 {
353 struct brcmu_chan ch_inf;
354
355 ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq);
356 ch_inf.bw = BRCMU_CHAN_BW_20;
357 d11inf->encchspec(&ch_inf);
358
359 return ch_inf.chspec;
360 }
361
362 /* Traverse a string of 1-byte tag/1-byte length/variable-length value
363 * triples, returning a pointer to the substring whose first element
364 * matches tag
365 */
366 const struct brcmf_tlv *
367 brcmf_parse_tlvs(const void *buf, int buflen, uint key)
368 {
369 const struct brcmf_tlv *elt = buf;
370 int totlen = buflen;
371
372 /* find tagged parameter */
373 while (totlen >= TLV_HDR_LEN) {
374 int len = elt->len;
375
376 /* validate remaining totlen */
377 if ((elt->id == key) && (totlen >= (len + TLV_HDR_LEN)))
378 return elt;
379
380 elt = (struct brcmf_tlv *)((u8 *)elt + (len + TLV_HDR_LEN));
381 totlen -= (len + TLV_HDR_LEN);
382 }
383
384 return NULL;
385 }
386
387 /* Is any of the tlvs the expected entry? If
388 * not update the tlvs buffer pointer/length.
389 */
390 static bool
391 brcmf_tlv_has_ie(const u8 *ie, const u8 **tlvs, u32 *tlvs_len,
392 const u8 *oui, u32 oui_len, u8 type)
393 {
394 /* If the contents match the OUI and the type */
395 if (ie[TLV_LEN_OFF] >= oui_len + 1 &&
396 !memcmp(&ie[TLV_BODY_OFF], oui, oui_len) &&
397 type == ie[TLV_BODY_OFF + oui_len]) {
398 return true;
399 }
400
401 if (tlvs == NULL)
402 return false;
403 /* point to the next ie */
404 ie += ie[TLV_LEN_OFF] + TLV_HDR_LEN;
405 /* calculate the length of the rest of the buffer */
406 *tlvs_len -= (int)(ie - *tlvs);
407 /* update the pointer to the start of the buffer */
408 *tlvs = ie;
409
410 return false;
411 }
412
413 static struct brcmf_vs_tlv *
414 brcmf_find_wpaie(const u8 *parse, u32 len)
415 {
416 const struct brcmf_tlv *ie;
417
418 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
419 if (brcmf_tlv_has_ie((const u8 *)ie, &parse, &len,
420 WPA_OUI, TLV_OUI_LEN, WPA_OUI_TYPE))
421 return (struct brcmf_vs_tlv *)ie;
422 }
423 return NULL;
424 }
425
426 static struct brcmf_vs_tlv *
427 brcmf_find_wpsie(const u8 *parse, u32 len)
428 {
429 const struct brcmf_tlv *ie;
430
431 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
432 if (brcmf_tlv_has_ie((u8 *)ie, &parse, &len,
433 WPA_OUI, TLV_OUI_LEN, WPS_OUI_TYPE))
434 return (struct brcmf_vs_tlv *)ie;
435 }
436 return NULL;
437 }
438
439
440 static void convert_key_from_CPU(struct brcmf_wsec_key *key,
441 struct brcmf_wsec_key_le *key_le)
442 {
443 key_le->index = cpu_to_le32(key->index);
444 key_le->len = cpu_to_le32(key->len);
445 key_le->algo = cpu_to_le32(key->algo);
446 key_le->flags = cpu_to_le32(key->flags);
447 key_le->rxiv.hi = cpu_to_le32(key->rxiv.hi);
448 key_le->rxiv.lo = cpu_to_le16(key->rxiv.lo);
449 key_le->iv_initialized = cpu_to_le32(key->iv_initialized);
450 memcpy(key_le->data, key->data, sizeof(key->data));
451 memcpy(key_le->ea, key->ea, sizeof(key->ea));
452 }
453
454 static int
455 send_key_to_dongle(struct net_device *ndev, struct brcmf_wsec_key *key)
456 {
457 int err;
458 struct brcmf_wsec_key_le key_le;
459
460 convert_key_from_CPU(key, &key_le);
461
462 brcmf_netdev_wait_pend8021x(ndev);
463
464 err = brcmf_fil_bsscfg_data_set(netdev_priv(ndev), "wsec_key", &key_le,
465 sizeof(key_le));
466
467 if (err)
468 brcmf_err("wsec_key error (%d)\n", err);
469 return err;
470 }
471
472 static s32
473 brcmf_configure_arp_offload(struct brcmf_if *ifp, bool enable)
474 {
475 s32 err;
476 u32 mode;
477
478 if (enable)
479 mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY;
480 else
481 mode = 0;
482
483 /* Try to set and enable ARP offload feature, this may fail, then it */
484 /* is simply not supported and err 0 will be returned */
485 err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode);
486 if (err) {
487 brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n",
488 mode, err);
489 err = 0;
490 } else {
491 err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable);
492 if (err) {
493 brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n",
494 enable, err);
495 err = 0;
496 } else
497 brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n",
498 enable, mode);
499 }
500
501 return err;
502 }
503
504 static void
505 brcmf_cfg80211_update_proto_addr_mode(struct wireless_dev *wdev)
506 {
507 struct brcmf_cfg80211_vif *vif;
508 struct brcmf_if *ifp;
509
510 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
511 ifp = vif->ifp;
512
513 if ((wdev->iftype == NL80211_IFTYPE_ADHOC) ||
514 (wdev->iftype == NL80211_IFTYPE_AP) ||
515 (wdev->iftype == NL80211_IFTYPE_P2P_GO))
516 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
517 ADDR_DIRECT);
518 else
519 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
520 ADDR_INDIRECT);
521 }
522
523 static bool brcmf_is_apmode(struct brcmf_cfg80211_vif *vif)
524 {
525 enum nl80211_iftype iftype;
526
527 iftype = vif->wdev.iftype;
528 return iftype == NL80211_IFTYPE_AP || iftype == NL80211_IFTYPE_P2P_GO;
529 }
530
531 static bool brcmf_is_ibssmode(struct brcmf_cfg80211_vif *vif)
532 {
533 return vif->wdev.iftype == NL80211_IFTYPE_ADHOC;
534 }
535
536 static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
537 const char *name,
538 enum nl80211_iftype type,
539 u32 *flags,
540 struct vif_params *params)
541 {
542 struct wireless_dev *wdev;
543
544 brcmf_dbg(TRACE, "enter: %s type %d\n", name, type);
545 switch (type) {
546 case NL80211_IFTYPE_ADHOC:
547 case NL80211_IFTYPE_STATION:
548 case NL80211_IFTYPE_AP:
549 case NL80211_IFTYPE_AP_VLAN:
550 case NL80211_IFTYPE_WDS:
551 case NL80211_IFTYPE_MONITOR:
552 case NL80211_IFTYPE_MESH_POINT:
553 return ERR_PTR(-EOPNOTSUPP);
554 case NL80211_IFTYPE_P2P_CLIENT:
555 case NL80211_IFTYPE_P2P_GO:
556 case NL80211_IFTYPE_P2P_DEVICE:
557 wdev = brcmf_p2p_add_vif(wiphy, name, type, flags, params);
558 if (!IS_ERR(wdev))
559 brcmf_cfg80211_update_proto_addr_mode(wdev);
560 return wdev;
561 case NL80211_IFTYPE_UNSPECIFIED:
562 default:
563 return ERR_PTR(-EINVAL);
564 }
565 }
566
567 static void brcmf_scan_config_mpc(struct brcmf_if *ifp, int mpc)
568 {
569 if (brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_NEED_MPC))
570 brcmf_set_mpc(ifp, mpc);
571 }
572
573 void brcmf_set_mpc(struct brcmf_if *ifp, int mpc)
574 {
575 s32 err = 0;
576
577 if (check_vif_up(ifp->vif)) {
578 err = brcmf_fil_iovar_int_set(ifp, "mpc", mpc);
579 if (err) {
580 brcmf_err("fail to set mpc\n");
581 return;
582 }
583 brcmf_dbg(INFO, "MPC : %d\n", mpc);
584 }
585 }
586
587 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
588 struct brcmf_if *ifp, bool aborted,
589 bool fw_abort)
590 {
591 struct brcmf_scan_params_le params_le;
592 struct cfg80211_scan_request *scan_request;
593 s32 err = 0;
594
595 brcmf_dbg(SCAN, "Enter\n");
596
597 /* clear scan request, because the FW abort can cause a second call */
598 /* to this functon and might cause a double cfg80211_scan_done */
599 scan_request = cfg->scan_request;
600 cfg->scan_request = NULL;
601
602 if (timer_pending(&cfg->escan_timeout))
603 del_timer_sync(&cfg->escan_timeout);
604
605 if (fw_abort) {
606 /* Do a scan abort to stop the driver's scan engine */
607 brcmf_dbg(SCAN, "ABORT scan in firmware\n");
608 memset(&params_le, 0, sizeof(params_le));
609 memset(params_le.bssid, 0xFF, ETH_ALEN);
610 params_le.bss_type = DOT11_BSSTYPE_ANY;
611 params_le.scan_type = 0;
612 params_le.channel_num = cpu_to_le32(1);
613 params_le.nprobes = cpu_to_le32(1);
614 params_le.active_time = cpu_to_le32(-1);
615 params_le.passive_time = cpu_to_le32(-1);
616 params_le.home_time = cpu_to_le32(-1);
617 /* Scan is aborted by setting channel_list[0] to -1 */
618 params_le.channel_list[0] = cpu_to_le16(-1);
619 /* E-Scan (or anyother type) can be aborted by SCAN */
620 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
621 &params_le, sizeof(params_le));
622 if (err)
623 brcmf_err("Scan abort failed\n");
624 }
625
626 brcmf_scan_config_mpc(ifp, 1);
627
628 /*
629 * e-scan can be initiated by scheduled scan
630 * which takes precedence.
631 */
632 if (cfg->sched_escan) {
633 brcmf_dbg(SCAN, "scheduled scan completed\n");
634 cfg->sched_escan = false;
635 if (!aborted)
636 cfg80211_sched_scan_results(cfg_to_wiphy(cfg));
637 } else if (scan_request) {
638 brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n",
639 aborted ? "Aborted" : "Done");
640 cfg80211_scan_done(scan_request, aborted);
641 }
642 if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
643 brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n");
644
645 return err;
646 }
647
648 static
649 int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
650 {
651 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
652 struct net_device *ndev = wdev->netdev;
653
654 /* vif event pending in firmware */
655 if (brcmf_cfg80211_vif_event_armed(cfg))
656 return -EBUSY;
657
658 if (ndev) {
659 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status) &&
660 cfg->escan_info.ifp == netdev_priv(ndev))
661 brcmf_notify_escan_complete(cfg, netdev_priv(ndev),
662 true, true);
663
664 brcmf_fil_iovar_int_set(netdev_priv(ndev), "mpc", 1);
665 }
666
667 switch (wdev->iftype) {
668 case NL80211_IFTYPE_ADHOC:
669 case NL80211_IFTYPE_STATION:
670 case NL80211_IFTYPE_AP:
671 case NL80211_IFTYPE_AP_VLAN:
672 case NL80211_IFTYPE_WDS:
673 case NL80211_IFTYPE_MONITOR:
674 case NL80211_IFTYPE_MESH_POINT:
675 return -EOPNOTSUPP;
676 case NL80211_IFTYPE_P2P_CLIENT:
677 case NL80211_IFTYPE_P2P_GO:
678 case NL80211_IFTYPE_P2P_DEVICE:
679 return brcmf_p2p_del_vif(wiphy, wdev);
680 case NL80211_IFTYPE_UNSPECIFIED:
681 default:
682 return -EINVAL;
683 }
684 return -EOPNOTSUPP;
685 }
686
687 static s32
688 brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
689 enum nl80211_iftype type, u32 *flags,
690 struct vif_params *params)
691 {
692 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
693 struct brcmf_if *ifp = netdev_priv(ndev);
694 struct brcmf_cfg80211_vif *vif = ifp->vif;
695 s32 infra = 0;
696 s32 ap = 0;
697 s32 err = 0;
698
699 brcmf_dbg(TRACE, "Enter, ndev=%p, type=%d\n", ndev, type);
700
701 switch (type) {
702 case NL80211_IFTYPE_MONITOR:
703 case NL80211_IFTYPE_WDS:
704 brcmf_err("type (%d) : currently we do not support this type\n",
705 type);
706 return -EOPNOTSUPP;
707 case NL80211_IFTYPE_ADHOC:
708 infra = 0;
709 break;
710 case NL80211_IFTYPE_STATION:
711 /* Ignore change for p2p IF. Unclear why supplicant does this */
712 if ((vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) ||
713 (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO)) {
714 brcmf_dbg(TRACE, "Ignoring cmd for p2p if\n");
715 /* WAR: It is unexpected to get a change of VIF for P2P
716 * IF, but it happens. The request can not be handled
717 * but returning EPERM causes a crash. Returning 0
718 * without setting ieee80211_ptr->iftype causes trace
719 * (WARN_ON) but it works with wpa_supplicant
720 */
721 return 0;
722 }
723 infra = 1;
724 break;
725 case NL80211_IFTYPE_AP:
726 case NL80211_IFTYPE_P2P_GO:
727 ap = 1;
728 break;
729 default:
730 err = -EINVAL;
731 goto done;
732 }
733
734 if (ap) {
735 if (type == NL80211_IFTYPE_P2P_GO) {
736 brcmf_dbg(INFO, "IF Type = P2P GO\n");
737 err = brcmf_p2p_ifchange(cfg, BRCMF_FIL_P2P_IF_GO);
738 }
739 if (!err) {
740 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &vif->sme_state);
741 brcmf_dbg(INFO, "IF Type = AP\n");
742 }
743 } else {
744 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, infra);
745 if (err) {
746 brcmf_err("WLC_SET_INFRA error (%d)\n", err);
747 err = -EAGAIN;
748 goto done;
749 }
750 brcmf_dbg(INFO, "IF Type = %s\n", brcmf_is_ibssmode(vif) ?
751 "Adhoc" : "Infra");
752 }
753 ndev->ieee80211_ptr->iftype = type;
754
755 brcmf_cfg80211_update_proto_addr_mode(&vif->wdev);
756
757 done:
758 brcmf_dbg(TRACE, "Exit\n");
759
760 return err;
761 }
762
763 static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
764 struct brcmf_scan_params_le *params_le,
765 struct cfg80211_scan_request *request)
766 {
767 u32 n_ssids;
768 u32 n_channels;
769 s32 i;
770 s32 offset;
771 u16 chanspec;
772 char *ptr;
773 struct brcmf_ssid_le ssid_le;
774
775 memset(params_le->bssid, 0xFF, ETH_ALEN);
776 params_le->bss_type = DOT11_BSSTYPE_ANY;
777 params_le->scan_type = 0;
778 params_le->channel_num = 0;
779 params_le->nprobes = cpu_to_le32(-1);
780 params_le->active_time = cpu_to_le32(-1);
781 params_le->passive_time = cpu_to_le32(-1);
782 params_le->home_time = cpu_to_le32(-1);
783 memset(&params_le->ssid_le, 0, sizeof(params_le->ssid_le));
784
785 /* if request is null exit so it will be all channel broadcast scan */
786 if (!request)
787 return;
788
789 n_ssids = request->n_ssids;
790 n_channels = request->n_channels;
791 /* Copy channel array if applicable */
792 brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n",
793 n_channels);
794 if (n_channels > 0) {
795 for (i = 0; i < n_channels; i++) {
796 chanspec = channel_to_chanspec(&cfg->d11inf,
797 request->channels[i]);
798 brcmf_dbg(SCAN, "Chan : %d, Channel spec: %x\n",
799 request->channels[i]->hw_value, chanspec);
800 params_le->channel_list[i] = cpu_to_le16(chanspec);
801 }
802 } else {
803 brcmf_dbg(SCAN, "Scanning all channels\n");
804 }
805 /* Copy ssid array if applicable */
806 brcmf_dbg(SCAN, "### List of SSIDs to scan ### %d\n", n_ssids);
807 if (n_ssids > 0) {
808 offset = offsetof(struct brcmf_scan_params_le, channel_list) +
809 n_channels * sizeof(u16);
810 offset = roundup(offset, sizeof(u32));
811 ptr = (char *)params_le + offset;
812 for (i = 0; i < n_ssids; i++) {
813 memset(&ssid_le, 0, sizeof(ssid_le));
814 ssid_le.SSID_len =
815 cpu_to_le32(request->ssids[i].ssid_len);
816 memcpy(ssid_le.SSID, request->ssids[i].ssid,
817 request->ssids[i].ssid_len);
818 if (!ssid_le.SSID_len)
819 brcmf_dbg(SCAN, "%d: Broadcast scan\n", i);
820 else
821 brcmf_dbg(SCAN, "%d: scan for %s size =%d\n",
822 i, ssid_le.SSID, ssid_le.SSID_len);
823 memcpy(ptr, &ssid_le, sizeof(ssid_le));
824 ptr += sizeof(ssid_le);
825 }
826 } else {
827 brcmf_dbg(SCAN, "Broadcast scan %p\n", request->ssids);
828 if ((request->ssids) && request->ssids->ssid_len) {
829 brcmf_dbg(SCAN, "SSID %s len=%d\n",
830 params_le->ssid_le.SSID,
831 request->ssids->ssid_len);
832 params_le->ssid_le.SSID_len =
833 cpu_to_le32(request->ssids->ssid_len);
834 memcpy(&params_le->ssid_le.SSID, request->ssids->ssid,
835 request->ssids->ssid_len);
836 }
837 }
838 /* Adding mask to channel numbers */
839 params_le->channel_num =
840 cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) |
841 (n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK));
842 }
843
844 static s32
845 brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
846 struct cfg80211_scan_request *request, u16 action)
847 {
848 s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
849 offsetof(struct brcmf_escan_params_le, params_le);
850 struct brcmf_escan_params_le *params;
851 s32 err = 0;
852
853 brcmf_dbg(SCAN, "E-SCAN START\n");
854
855 if (request != NULL) {
856 /* Allocate space for populating ssids in struct */
857 params_size += sizeof(u32) * ((request->n_channels + 1) / 2);
858
859 /* Allocate space for populating ssids in struct */
860 params_size += sizeof(struct brcmf_ssid) * request->n_ssids;
861 }
862
863 params = kzalloc(params_size, GFP_KERNEL);
864 if (!params) {
865 err = -ENOMEM;
866 goto exit;
867 }
868 BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN);
869 brcmf_escan_prep(cfg, &params->params_le, request);
870 params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
871 params->action = cpu_to_le16(action);
872 params->sync_id = cpu_to_le16(0x1234);
873
874 err = brcmf_fil_iovar_data_set(ifp, "escan", params, params_size);
875 if (err) {
876 if (err == -EBUSY)
877 brcmf_dbg(INFO, "system busy : escan canceled\n");
878 else
879 brcmf_err("error (%d)\n", err);
880 }
881
882 kfree(params);
883 exit:
884 return err;
885 }
886
887 static s32
888 brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
889 struct brcmf_if *ifp, struct cfg80211_scan_request *request)
890 {
891 s32 err;
892 u32 passive_scan;
893 struct brcmf_scan_results *results;
894 struct escan_info *escan = &cfg->escan_info;
895
896 brcmf_dbg(SCAN, "Enter\n");
897 escan->ifp = ifp;
898 escan->wiphy = wiphy;
899 escan->escan_state = WL_ESCAN_STATE_SCANNING;
900 passive_scan = cfg->active_scan ? 0 : 1;
901 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
902 passive_scan);
903 if (err) {
904 brcmf_err("error (%d)\n", err);
905 return err;
906 }
907 brcmf_scan_config_mpc(ifp, 0);
908 results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
909 results->version = 0;
910 results->count = 0;
911 results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE;
912
913 err = escan->run(cfg, ifp, request, WL_ESCAN_ACTION_START);
914 if (err)
915 brcmf_scan_config_mpc(ifp, 1);
916 return err;
917 }
918
919 static s32
920 brcmf_cfg80211_escan(struct wiphy *wiphy, struct brcmf_cfg80211_vif *vif,
921 struct cfg80211_scan_request *request,
922 struct cfg80211_ssid *this_ssid)
923 {
924 struct brcmf_if *ifp = vif->ifp;
925 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
926 struct cfg80211_ssid *ssids;
927 struct brcmf_cfg80211_scan_req *sr = &cfg->scan_req_int;
928 u32 passive_scan;
929 bool escan_req;
930 bool spec_scan;
931 s32 err;
932 u32 SSID_len;
933
934 brcmf_dbg(SCAN, "START ESCAN\n");
935
936 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
937 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
938 return -EAGAIN;
939 }
940 if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) {
941 brcmf_err("Scanning being aborted: status (%lu)\n",
942 cfg->scan_status);
943 return -EAGAIN;
944 }
945 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
946 brcmf_err("Scanning suppressed: status (%lu)\n",
947 cfg->scan_status);
948 return -EAGAIN;
949 }
950 if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) {
951 brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state);
952 return -EAGAIN;
953 }
954
955 /* If scan req comes for p2p0, send it over primary I/F */
956 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
957 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
958
959 /* Arm scan timeout timer */
960 mod_timer(&cfg->escan_timeout, jiffies +
961 WL_ESCAN_TIMER_INTERVAL_MS * HZ / 1000);
962
963 escan_req = false;
964 if (request) {
965 /* scan bss */
966 ssids = request->ssids;
967 escan_req = true;
968 } else {
969 /* scan in ibss */
970 /* we don't do escan in ibss */
971 ssids = this_ssid;
972 }
973
974 cfg->scan_request = request;
975 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
976 if (escan_req) {
977 cfg->escan_info.run = brcmf_run_escan;
978 err = brcmf_p2p_scan_prep(wiphy, request, vif);
979 if (err)
980 goto scan_out;
981
982 err = brcmf_do_escan(cfg, wiphy, vif->ifp, request);
983 if (err)
984 goto scan_out;
985 } else {
986 brcmf_dbg(SCAN, "ssid \"%s\", ssid_len (%d)\n",
987 ssids->ssid, ssids->ssid_len);
988 memset(&sr->ssid_le, 0, sizeof(sr->ssid_le));
989 SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len);
990 sr->ssid_le.SSID_len = cpu_to_le32(0);
991 spec_scan = false;
992 if (SSID_len) {
993 memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len);
994 sr->ssid_le.SSID_len = cpu_to_le32(SSID_len);
995 spec_scan = true;
996 } else
997 brcmf_dbg(SCAN, "Broadcast scan\n");
998
999 passive_scan = cfg->active_scan ? 0 : 1;
1000 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
1001 passive_scan);
1002 if (err) {
1003 brcmf_err("WLC_SET_PASSIVE_SCAN error (%d)\n", err);
1004 goto scan_out;
1005 }
1006 brcmf_scan_config_mpc(ifp, 0);
1007 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
1008 &sr->ssid_le, sizeof(sr->ssid_le));
1009 if (err) {
1010 if (err == -EBUSY)
1011 brcmf_dbg(INFO, "BUSY: scan for \"%s\" canceled\n",
1012 sr->ssid_le.SSID);
1013 else
1014 brcmf_err("WLC_SCAN error (%d)\n", err);
1015
1016 brcmf_scan_config_mpc(ifp, 1);
1017 goto scan_out;
1018 }
1019 }
1020
1021 return 0;
1022
1023 scan_out:
1024 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1025 if (timer_pending(&cfg->escan_timeout))
1026 del_timer_sync(&cfg->escan_timeout);
1027 cfg->scan_request = NULL;
1028 return err;
1029 }
1030
1031 static s32
1032 brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
1033 {
1034 struct brcmf_cfg80211_vif *vif;
1035 s32 err = 0;
1036
1037 brcmf_dbg(TRACE, "Enter\n");
1038 vif = container_of(request->wdev, struct brcmf_cfg80211_vif, wdev);
1039 if (!check_vif_up(vif))
1040 return -EIO;
1041
1042 err = brcmf_cfg80211_escan(wiphy, vif, request, NULL);
1043
1044 if (err)
1045 brcmf_err("scan error (%d)\n", err);
1046
1047 brcmf_dbg(TRACE, "Exit\n");
1048 return err;
1049 }
1050
1051 static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold)
1052 {
1053 s32 err = 0;
1054
1055 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "rtsthresh",
1056 rts_threshold);
1057 if (err)
1058 brcmf_err("Error (%d)\n", err);
1059
1060 return err;
1061 }
1062
1063 static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold)
1064 {
1065 s32 err = 0;
1066
1067 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "fragthresh",
1068 frag_threshold);
1069 if (err)
1070 brcmf_err("Error (%d)\n", err);
1071
1072 return err;
1073 }
1074
1075 static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
1076 {
1077 s32 err = 0;
1078 u32 cmd = (l ? BRCMF_C_SET_LRL : BRCMF_C_SET_SRL);
1079
1080 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), cmd, retry);
1081 if (err) {
1082 brcmf_err("cmd (%d) , error (%d)\n", cmd, err);
1083 return err;
1084 }
1085 return err;
1086 }
1087
1088 static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1089 {
1090 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1091 struct net_device *ndev = cfg_to_ndev(cfg);
1092 struct brcmf_if *ifp = netdev_priv(ndev);
1093 s32 err = 0;
1094
1095 brcmf_dbg(TRACE, "Enter\n");
1096 if (!check_vif_up(ifp->vif))
1097 return -EIO;
1098
1099 if (changed & WIPHY_PARAM_RTS_THRESHOLD &&
1100 (cfg->conf->rts_threshold != wiphy->rts_threshold)) {
1101 cfg->conf->rts_threshold = wiphy->rts_threshold;
1102 err = brcmf_set_rts(ndev, cfg->conf->rts_threshold);
1103 if (!err)
1104 goto done;
1105 }
1106 if (changed & WIPHY_PARAM_FRAG_THRESHOLD &&
1107 (cfg->conf->frag_threshold != wiphy->frag_threshold)) {
1108 cfg->conf->frag_threshold = wiphy->frag_threshold;
1109 err = brcmf_set_frag(ndev, cfg->conf->frag_threshold);
1110 if (!err)
1111 goto done;
1112 }
1113 if (changed & WIPHY_PARAM_RETRY_LONG
1114 && (cfg->conf->retry_long != wiphy->retry_long)) {
1115 cfg->conf->retry_long = wiphy->retry_long;
1116 err = brcmf_set_retry(ndev, cfg->conf->retry_long, true);
1117 if (!err)
1118 goto done;
1119 }
1120 if (changed & WIPHY_PARAM_RETRY_SHORT
1121 && (cfg->conf->retry_short != wiphy->retry_short)) {
1122 cfg->conf->retry_short = wiphy->retry_short;
1123 err = brcmf_set_retry(ndev, cfg->conf->retry_short, false);
1124 if (!err)
1125 goto done;
1126 }
1127
1128 done:
1129 brcmf_dbg(TRACE, "Exit\n");
1130 return err;
1131 }
1132
1133 static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof)
1134 {
1135 memset(prof, 0, sizeof(*prof));
1136 }
1137
1138 static void brcmf_link_down(struct brcmf_cfg80211_vif *vif)
1139 {
1140 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy);
1141 s32 err = 0;
1142
1143 brcmf_dbg(TRACE, "Enter\n");
1144
1145 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state)) {
1146 brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n ");
1147 err = brcmf_fil_cmd_data_set(vif->ifp,
1148 BRCMF_C_DISASSOC, NULL, 0);
1149 if (err) {
1150 brcmf_err("WLC_DISASSOC failed (%d)\n", err);
1151 }
1152 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state);
1153 cfg80211_disconnected(vif->wdev.netdev, 0, NULL, 0, GFP_KERNEL);
1154
1155 }
1156 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state);
1157 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
1158 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
1159 brcmf_dbg(TRACE, "Exit\n");
1160 }
1161
1162 static s32
1163 brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
1164 struct cfg80211_ibss_params *params)
1165 {
1166 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1167 struct brcmf_if *ifp = netdev_priv(ndev);
1168 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1169 struct brcmf_join_params join_params;
1170 size_t join_params_size = 0;
1171 s32 err = 0;
1172 s32 wsec = 0;
1173 s32 bcnprd;
1174 u16 chanspec;
1175
1176 brcmf_dbg(TRACE, "Enter\n");
1177 if (!check_vif_up(ifp->vif))
1178 return -EIO;
1179
1180 if (params->ssid)
1181 brcmf_dbg(CONN, "SSID: %s\n", params->ssid);
1182 else {
1183 brcmf_dbg(CONN, "SSID: NULL, Not supported\n");
1184 return -EOPNOTSUPP;
1185 }
1186
1187 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1188
1189 if (params->bssid)
1190 brcmf_dbg(CONN, "BSSID: %pM\n", params->bssid);
1191 else
1192 brcmf_dbg(CONN, "No BSSID specified\n");
1193
1194 if (params->chandef.chan)
1195 brcmf_dbg(CONN, "channel: %d\n",
1196 params->chandef.chan->center_freq);
1197 else
1198 brcmf_dbg(CONN, "no channel specified\n");
1199
1200 if (params->channel_fixed)
1201 brcmf_dbg(CONN, "fixed channel required\n");
1202 else
1203 brcmf_dbg(CONN, "no fixed channel required\n");
1204
1205 if (params->ie && params->ie_len)
1206 brcmf_dbg(CONN, "ie len: %d\n", params->ie_len);
1207 else
1208 brcmf_dbg(CONN, "no ie specified\n");
1209
1210 if (params->beacon_interval)
1211 brcmf_dbg(CONN, "beacon interval: %d\n",
1212 params->beacon_interval);
1213 else
1214 brcmf_dbg(CONN, "no beacon interval specified\n");
1215
1216 if (params->basic_rates)
1217 brcmf_dbg(CONN, "basic rates: %08X\n", params->basic_rates);
1218 else
1219 brcmf_dbg(CONN, "no basic rates specified\n");
1220
1221 if (params->privacy)
1222 brcmf_dbg(CONN, "privacy required\n");
1223 else
1224 brcmf_dbg(CONN, "no privacy required\n");
1225
1226 /* Configure Privacy for starter */
1227 if (params->privacy)
1228 wsec |= WEP_ENABLED;
1229
1230 err = brcmf_fil_iovar_int_set(ifp, "wsec", wsec);
1231 if (err) {
1232 brcmf_err("wsec failed (%d)\n", err);
1233 goto done;
1234 }
1235
1236 /* Configure Beacon Interval for starter */
1237 if (params->beacon_interval)
1238 bcnprd = params->beacon_interval;
1239 else
1240 bcnprd = 100;
1241
1242 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, bcnprd);
1243 if (err) {
1244 brcmf_err("WLC_SET_BCNPRD failed (%d)\n", err);
1245 goto done;
1246 }
1247
1248 /* Configure required join parameter */
1249 memset(&join_params, 0, sizeof(struct brcmf_join_params));
1250
1251 /* SSID */
1252 profile->ssid.SSID_len = min_t(u32, params->ssid_len, 32);
1253 memcpy(profile->ssid.SSID, params->ssid, profile->ssid.SSID_len);
1254 memcpy(join_params.ssid_le.SSID, params->ssid, profile->ssid.SSID_len);
1255 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1256 join_params_size = sizeof(join_params.ssid_le);
1257
1258 /* BSSID */
1259 if (params->bssid) {
1260 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN);
1261 join_params_size = sizeof(join_params.ssid_le) +
1262 BRCMF_ASSOC_PARAMS_FIXED_SIZE;
1263 memcpy(profile->bssid, params->bssid, ETH_ALEN);
1264 } else {
1265 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1266 memset(profile->bssid, 0, ETH_ALEN);
1267 }
1268
1269 /* Channel */
1270 if (params->chandef.chan) {
1271 u32 target_channel;
1272
1273 cfg->channel =
1274 ieee80211_frequency_to_channel(
1275 params->chandef.chan->center_freq);
1276 if (params->channel_fixed) {
1277 /* adding chanspec */
1278 chanspec = chandef_to_chanspec(&cfg->d11inf,
1279 &params->chandef);
1280 join_params.params_le.chanspec_list[0] =
1281 cpu_to_le16(chanspec);
1282 join_params.params_le.chanspec_num = cpu_to_le32(1);
1283 join_params_size += sizeof(join_params.params_le);
1284 }
1285
1286 /* set channel for starter */
1287 target_channel = cfg->channel;
1288 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_CHANNEL,
1289 target_channel);
1290 if (err) {
1291 brcmf_err("WLC_SET_CHANNEL failed (%d)\n", err);
1292 goto done;
1293 }
1294 } else
1295 cfg->channel = 0;
1296
1297 cfg->ibss_starter = false;
1298
1299
1300 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1301 &join_params, join_params_size);
1302 if (err) {
1303 brcmf_err("WLC_SET_SSID failed (%d)\n", err);
1304 goto done;
1305 }
1306
1307 done:
1308 if (err)
1309 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1310 brcmf_dbg(TRACE, "Exit\n");
1311 return err;
1312 }
1313
1314 static s32
1315 brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
1316 {
1317 struct brcmf_if *ifp = netdev_priv(ndev);
1318
1319 brcmf_dbg(TRACE, "Enter\n");
1320 if (!check_vif_up(ifp->vif))
1321 return -EIO;
1322
1323 brcmf_link_down(ifp->vif);
1324
1325 brcmf_dbg(TRACE, "Exit\n");
1326
1327 return 0;
1328 }
1329
1330 static s32 brcmf_set_wpa_version(struct net_device *ndev,
1331 struct cfg80211_connect_params *sme)
1332 {
1333 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1334 struct brcmf_cfg80211_security *sec;
1335 s32 val = 0;
1336 s32 err = 0;
1337
1338 if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1)
1339 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED;
1340 else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)
1341 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED;
1342 else
1343 val = WPA_AUTH_DISABLED;
1344 brcmf_dbg(CONN, "setting wpa_auth to 0x%0x\n", val);
1345 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val);
1346 if (err) {
1347 brcmf_err("set wpa_auth failed (%d)\n", err);
1348 return err;
1349 }
1350 sec = &profile->sec;
1351 sec->wpa_versions = sme->crypto.wpa_versions;
1352 return err;
1353 }
1354
1355 static s32 brcmf_set_auth_type(struct net_device *ndev,
1356 struct cfg80211_connect_params *sme)
1357 {
1358 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1359 struct brcmf_cfg80211_security *sec;
1360 s32 val = 0;
1361 s32 err = 0;
1362
1363 switch (sme->auth_type) {
1364 case NL80211_AUTHTYPE_OPEN_SYSTEM:
1365 val = 0;
1366 brcmf_dbg(CONN, "open system\n");
1367 break;
1368 case NL80211_AUTHTYPE_SHARED_KEY:
1369 val = 1;
1370 brcmf_dbg(CONN, "shared key\n");
1371 break;
1372 case NL80211_AUTHTYPE_AUTOMATIC:
1373 val = 2;
1374 brcmf_dbg(CONN, "automatic\n");
1375 break;
1376 case NL80211_AUTHTYPE_NETWORK_EAP:
1377 brcmf_dbg(CONN, "network eap\n");
1378 default:
1379 val = 2;
1380 brcmf_err("invalid auth type (%d)\n", sme->auth_type);
1381 break;
1382 }
1383
1384 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1385 if (err) {
1386 brcmf_err("set auth failed (%d)\n", err);
1387 return err;
1388 }
1389 sec = &profile->sec;
1390 sec->auth_type = sme->auth_type;
1391 return err;
1392 }
1393
1394 static s32
1395 brcmf_set_wsec_mode(struct net_device *ndev,
1396 struct cfg80211_connect_params *sme, bool mfp)
1397 {
1398 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1399 struct brcmf_cfg80211_security *sec;
1400 s32 pval = 0;
1401 s32 gval = 0;
1402 s32 wsec;
1403 s32 err = 0;
1404
1405 if (sme->crypto.n_ciphers_pairwise) {
1406 switch (sme->crypto.ciphers_pairwise[0]) {
1407 case WLAN_CIPHER_SUITE_WEP40:
1408 case WLAN_CIPHER_SUITE_WEP104:
1409 pval = WEP_ENABLED;
1410 break;
1411 case WLAN_CIPHER_SUITE_TKIP:
1412 pval = TKIP_ENABLED;
1413 break;
1414 case WLAN_CIPHER_SUITE_CCMP:
1415 pval = AES_ENABLED;
1416 break;
1417 case WLAN_CIPHER_SUITE_AES_CMAC:
1418 pval = AES_ENABLED;
1419 break;
1420 default:
1421 brcmf_err("invalid cipher pairwise (%d)\n",
1422 sme->crypto.ciphers_pairwise[0]);
1423 return -EINVAL;
1424 }
1425 }
1426 if (sme->crypto.cipher_group) {
1427 switch (sme->crypto.cipher_group) {
1428 case WLAN_CIPHER_SUITE_WEP40:
1429 case WLAN_CIPHER_SUITE_WEP104:
1430 gval = WEP_ENABLED;
1431 break;
1432 case WLAN_CIPHER_SUITE_TKIP:
1433 gval = TKIP_ENABLED;
1434 break;
1435 case WLAN_CIPHER_SUITE_CCMP:
1436 gval = AES_ENABLED;
1437 break;
1438 case WLAN_CIPHER_SUITE_AES_CMAC:
1439 gval = AES_ENABLED;
1440 break;
1441 default:
1442 brcmf_err("invalid cipher group (%d)\n",
1443 sme->crypto.cipher_group);
1444 return -EINVAL;
1445 }
1446 }
1447
1448 brcmf_dbg(CONN, "pval (%d) gval (%d)\n", pval, gval);
1449 /* In case of privacy, but no security and WPS then simulate */
1450 /* setting AES. WPS-2.0 allows no security */
1451 if (brcmf_find_wpsie(sme->ie, sme->ie_len) && !pval && !gval &&
1452 sme->privacy)
1453 pval = AES_ENABLED;
1454
1455 if (mfp)
1456 wsec = pval | gval | MFP_CAPABLE;
1457 else
1458 wsec = pval | gval;
1459 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wsec", wsec);
1460 if (err) {
1461 brcmf_err("error (%d)\n", err);
1462 return err;
1463 }
1464
1465 sec = &profile->sec;
1466 sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0];
1467 sec->cipher_group = sme->crypto.cipher_group;
1468
1469 return err;
1470 }
1471
1472 static s32
1473 brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
1474 {
1475 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1476 struct brcmf_cfg80211_security *sec;
1477 s32 val = 0;
1478 s32 err = 0;
1479
1480 if (sme->crypto.n_akm_suites) {
1481 err = brcmf_fil_bsscfg_int_get(netdev_priv(ndev),
1482 "wpa_auth", &val);
1483 if (err) {
1484 brcmf_err("could not get wpa_auth (%d)\n", err);
1485 return err;
1486 }
1487 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) {
1488 switch (sme->crypto.akm_suites[0]) {
1489 case WLAN_AKM_SUITE_8021X:
1490 val = WPA_AUTH_UNSPECIFIED;
1491 break;
1492 case WLAN_AKM_SUITE_PSK:
1493 val = WPA_AUTH_PSK;
1494 break;
1495 default:
1496 brcmf_err("invalid cipher group (%d)\n",
1497 sme->crypto.cipher_group);
1498 return -EINVAL;
1499 }
1500 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) {
1501 switch (sme->crypto.akm_suites[0]) {
1502 case WLAN_AKM_SUITE_8021X:
1503 val = WPA2_AUTH_UNSPECIFIED;
1504 break;
1505 case WLAN_AKM_SUITE_PSK:
1506 val = WPA2_AUTH_PSK;
1507 break;
1508 default:
1509 brcmf_err("invalid cipher group (%d)\n",
1510 sme->crypto.cipher_group);
1511 return -EINVAL;
1512 }
1513 }
1514
1515 brcmf_dbg(CONN, "setting wpa_auth to %d\n", val);
1516 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev),
1517 "wpa_auth", val);
1518 if (err) {
1519 brcmf_err("could not set wpa_auth (%d)\n", err);
1520 return err;
1521 }
1522 }
1523 sec = &profile->sec;
1524 sec->wpa_auth = sme->crypto.akm_suites[0];
1525
1526 return err;
1527 }
1528
1529 static s32
1530 brcmf_set_sharedkey(struct net_device *ndev,
1531 struct cfg80211_connect_params *sme)
1532 {
1533 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1534 struct brcmf_cfg80211_security *sec;
1535 struct brcmf_wsec_key key;
1536 s32 val;
1537 s32 err = 0;
1538
1539 brcmf_dbg(CONN, "key len (%d)\n", sme->key_len);
1540
1541 if (sme->key_len == 0)
1542 return 0;
1543
1544 sec = &profile->sec;
1545 brcmf_dbg(CONN, "wpa_versions 0x%x cipher_pairwise 0x%x\n",
1546 sec->wpa_versions, sec->cipher_pairwise);
1547
1548 if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2))
1549 return 0;
1550
1551 if (!(sec->cipher_pairwise &
1552 (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)))
1553 return 0;
1554
1555 memset(&key, 0, sizeof(key));
1556 key.len = (u32) sme->key_len;
1557 key.index = (u32) sme->key_idx;
1558 if (key.len > sizeof(key.data)) {
1559 brcmf_err("Too long key length (%u)\n", key.len);
1560 return -EINVAL;
1561 }
1562 memcpy(key.data, sme->key, key.len);
1563 key.flags = BRCMF_PRIMARY_KEY;
1564 switch (sec->cipher_pairwise) {
1565 case WLAN_CIPHER_SUITE_WEP40:
1566 key.algo = CRYPTO_ALGO_WEP1;
1567 break;
1568 case WLAN_CIPHER_SUITE_WEP104:
1569 key.algo = CRYPTO_ALGO_WEP128;
1570 break;
1571 default:
1572 brcmf_err("Invalid algorithm (%d)\n",
1573 sme->crypto.ciphers_pairwise[0]);
1574 return -EINVAL;
1575 }
1576 /* Set the new key/index */
1577 brcmf_dbg(CONN, "key length (%d) key index (%d) algo (%d)\n",
1578 key.len, key.index, key.algo);
1579 brcmf_dbg(CONN, "key \"%s\"\n", key.data);
1580 err = send_key_to_dongle(ndev, &key);
1581 if (err)
1582 return err;
1583
1584 if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) {
1585 brcmf_dbg(CONN, "set auth_type to shared key\n");
1586 val = WL_AUTH_SHARED_KEY; /* shared key */
1587 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1588 if (err)
1589 brcmf_err("set auth failed (%d)\n", err);
1590 }
1591 return err;
1592 }
1593
1594 static
1595 enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp,
1596 enum nl80211_auth_type type)
1597 {
1598 if (type == NL80211_AUTHTYPE_AUTOMATIC &&
1599 brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_AUTO_AUTH)) {
1600 brcmf_dbg(CONN, "WAR: use OPEN instead of AUTO\n");
1601 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1602 }
1603 return type;
1604 }
1605
1606 static s32
1607 brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
1608 struct cfg80211_connect_params *sme)
1609 {
1610 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1611 struct brcmf_if *ifp = netdev_priv(ndev);
1612 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1613 struct ieee80211_channel *chan = sme->channel;
1614 struct brcmf_join_params join_params;
1615 size_t join_params_size;
1616 const struct brcmf_tlv *rsn_ie;
1617 const struct brcmf_vs_tlv *wpa_ie;
1618 const void *ie;
1619 u32 ie_len;
1620 struct brcmf_ext_join_params_le *ext_join_params;
1621 u16 chanspec;
1622 s32 err = 0;
1623
1624 brcmf_dbg(TRACE, "Enter\n");
1625 if (!check_vif_up(ifp->vif))
1626 return -EIO;
1627
1628 if (!sme->ssid) {
1629 brcmf_err("Invalid ssid\n");
1630 return -EOPNOTSUPP;
1631 }
1632
1633 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) {
1634 /* A normal (non P2P) connection request setup. */
1635 ie = NULL;
1636 ie_len = 0;
1637 /* find the WPA_IE */
1638 wpa_ie = brcmf_find_wpaie((u8 *)sme->ie, sme->ie_len);
1639 if (wpa_ie) {
1640 ie = wpa_ie;
1641 ie_len = wpa_ie->len + TLV_HDR_LEN;
1642 } else {
1643 /* find the RSN_IE */
1644 rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie,
1645 sme->ie_len,
1646 WLAN_EID_RSN);
1647 if (rsn_ie) {
1648 ie = rsn_ie;
1649 ie_len = rsn_ie->len + TLV_HDR_LEN;
1650 }
1651 }
1652 brcmf_fil_iovar_data_set(ifp, "wpaie", ie, ie_len);
1653 }
1654
1655 err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG,
1656 sme->ie, sme->ie_len);
1657 if (err)
1658 brcmf_err("Set Assoc REQ IE Failed\n");
1659 else
1660 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n");
1661
1662 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1663
1664 if (chan) {
1665 cfg->channel =
1666 ieee80211_frequency_to_channel(chan->center_freq);
1667 chanspec = channel_to_chanspec(&cfg->d11inf, chan);
1668 brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n",
1669 cfg->channel, chan->center_freq, chanspec);
1670 } else {
1671 cfg->channel = 0;
1672 chanspec = 0;
1673 }
1674
1675 brcmf_dbg(INFO, "ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len);
1676
1677 err = brcmf_set_wpa_version(ndev, sme);
1678 if (err) {
1679 brcmf_err("wl_set_wpa_version failed (%d)\n", err);
1680 goto done;
1681 }
1682
1683 sme->auth_type = brcmf_war_auth_type(ifp, sme->auth_type);
1684 err = brcmf_set_auth_type(ndev, sme);
1685 if (err) {
1686 brcmf_err("wl_set_auth_type failed (%d)\n", err);
1687 goto done;
1688 }
1689
1690 err = brcmf_set_wsec_mode(ndev, sme, sme->mfp == NL80211_MFP_REQUIRED);
1691 if (err) {
1692 brcmf_err("wl_set_set_cipher failed (%d)\n", err);
1693 goto done;
1694 }
1695
1696 err = brcmf_set_key_mgmt(ndev, sme);
1697 if (err) {
1698 brcmf_err("wl_set_key_mgmt failed (%d)\n", err);
1699 goto done;
1700 }
1701
1702 err = brcmf_set_sharedkey(ndev, sme);
1703 if (err) {
1704 brcmf_err("brcmf_set_sharedkey failed (%d)\n", err);
1705 goto done;
1706 }
1707
1708 profile->ssid.SSID_len = min_t(u32, (u32)sizeof(profile->ssid.SSID),
1709 (u32)sme->ssid_len);
1710 memcpy(&profile->ssid.SSID, sme->ssid, profile->ssid.SSID_len);
1711 if (profile->ssid.SSID_len < IEEE80211_MAX_SSID_LEN) {
1712 profile->ssid.SSID[profile->ssid.SSID_len] = 0;
1713 brcmf_dbg(CONN, "SSID \"%s\", len (%d)\n", profile->ssid.SSID,
1714 profile->ssid.SSID_len);
1715 }
1716
1717 /* Join with specific BSSID and cached SSID
1718 * If SSID is zero join based on BSSID only
1719 */
1720 join_params_size = offsetof(struct brcmf_ext_join_params_le, assoc_le) +
1721 offsetof(struct brcmf_assoc_params_le, chanspec_list);
1722 if (cfg->channel)
1723 join_params_size += sizeof(u16);
1724 ext_join_params = kzalloc(join_params_size, GFP_KERNEL);
1725 if (ext_join_params == NULL) {
1726 err = -ENOMEM;
1727 goto done;
1728 }
1729 ext_join_params->ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1730 memcpy(&ext_join_params->ssid_le.SSID, sme->ssid,
1731 profile->ssid.SSID_len);
1732
1733 /* Set up join scan parameters */
1734 ext_join_params->scan_le.scan_type = -1;
1735 ext_join_params->scan_le.home_time = cpu_to_le32(-1);
1736
1737 if (sme->bssid)
1738 memcpy(&ext_join_params->assoc_le.bssid, sme->bssid, ETH_ALEN);
1739 else
1740 memset(&ext_join_params->assoc_le.bssid, 0xFF, ETH_ALEN);
1741
1742 if (cfg->channel) {
1743 ext_join_params->assoc_le.chanspec_num = cpu_to_le32(1);
1744
1745 ext_join_params->assoc_le.chanspec_list[0] =
1746 cpu_to_le16(chanspec);
1747 /* Increase dwell time to receive probe response or detect
1748 * beacon from target AP at a noisy air only during connect
1749 * command.
1750 */
1751 ext_join_params->scan_le.active_time =
1752 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS);
1753 ext_join_params->scan_le.passive_time =
1754 cpu_to_le32(BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS);
1755 /* To sync with presence period of VSDB GO send probe request
1756 * more frequently. Probe request will be stopped when it gets
1757 * probe response from target AP/GO.
1758 */
1759 ext_join_params->scan_le.nprobes =
1760 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS /
1761 BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS);
1762 } else {
1763 ext_join_params->scan_le.active_time = cpu_to_le32(-1);
1764 ext_join_params->scan_le.passive_time = cpu_to_le32(-1);
1765 ext_join_params->scan_le.nprobes = cpu_to_le32(-1);
1766 }
1767
1768 err = brcmf_fil_bsscfg_data_set(ifp, "join", ext_join_params,
1769 join_params_size);
1770 kfree(ext_join_params);
1771 if (!err)
1772 /* This is it. join command worked, we are done */
1773 goto done;
1774
1775 /* join command failed, fallback to set ssid */
1776 memset(&join_params, 0, sizeof(join_params));
1777 join_params_size = sizeof(join_params.ssid_le);
1778
1779 memcpy(&join_params.ssid_le.SSID, sme->ssid, profile->ssid.SSID_len);
1780 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1781
1782 if (sme->bssid)
1783 memcpy(join_params.params_le.bssid, sme->bssid, ETH_ALEN);
1784 else
1785 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1786
1787 if (cfg->channel) {
1788 join_params.params_le.chanspec_list[0] = cpu_to_le16(chanspec);
1789 join_params.params_le.chanspec_num = cpu_to_le32(1);
1790 join_params_size += sizeof(join_params.params_le);
1791 }
1792 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1793 &join_params, join_params_size);
1794 if (err)
1795 brcmf_err("BRCMF_C_SET_SSID failed (%d)\n", err);
1796
1797 done:
1798 if (err)
1799 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1800 brcmf_dbg(TRACE, "Exit\n");
1801 return err;
1802 }
1803
1804 static s32
1805 brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
1806 u16 reason_code)
1807 {
1808 struct brcmf_if *ifp = netdev_priv(ndev);
1809 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1810 struct brcmf_scb_val_le scbval;
1811 s32 err = 0;
1812
1813 brcmf_dbg(TRACE, "Enter. Reason code = %d\n", reason_code);
1814 if (!check_vif_up(ifp->vif))
1815 return -EIO;
1816
1817 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
1818 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1819 cfg80211_disconnected(ndev, reason_code, NULL, 0, GFP_KERNEL);
1820
1821 memcpy(&scbval.ea, &profile->bssid, ETH_ALEN);
1822 scbval.val = cpu_to_le32(reason_code);
1823 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC,
1824 &scbval, sizeof(scbval));
1825 if (err)
1826 brcmf_err("error (%d)\n", err);
1827
1828 brcmf_dbg(TRACE, "Exit\n");
1829 return err;
1830 }
1831
1832 static s32
1833 brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
1834 enum nl80211_tx_power_setting type, s32 mbm)
1835 {
1836
1837 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1838 struct net_device *ndev = cfg_to_ndev(cfg);
1839 struct brcmf_if *ifp = netdev_priv(ndev);
1840 u16 txpwrmw;
1841 s32 err = 0;
1842 s32 disable = 0;
1843 s32 dbm = MBM_TO_DBM(mbm);
1844
1845 brcmf_dbg(TRACE, "Enter\n");
1846 if (!check_vif_up(ifp->vif))
1847 return -EIO;
1848
1849 switch (type) {
1850 case NL80211_TX_POWER_AUTOMATIC:
1851 break;
1852 case NL80211_TX_POWER_LIMITED:
1853 case NL80211_TX_POWER_FIXED:
1854 if (dbm < 0) {
1855 brcmf_err("TX_POWER_FIXED - dbm is negative\n");
1856 err = -EINVAL;
1857 goto done;
1858 }
1859 break;
1860 }
1861 /* Make sure radio is off or on as far as software is concerned */
1862 disable = WL_RADIO_SW_DISABLE << 16;
1863 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable);
1864 if (err)
1865 brcmf_err("WLC_SET_RADIO error (%d)\n", err);
1866
1867 if (dbm > 0xffff)
1868 txpwrmw = 0xffff;
1869 else
1870 txpwrmw = (u16) dbm;
1871 err = brcmf_fil_iovar_int_set(ifp, "qtxpower",
1872 (s32)brcmf_mw_to_qdbm(txpwrmw));
1873 if (err)
1874 brcmf_err("qtxpower error (%d)\n", err);
1875 cfg->conf->tx_power = dbm;
1876
1877 done:
1878 brcmf_dbg(TRACE, "Exit\n");
1879 return err;
1880 }
1881
1882 static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy,
1883 struct wireless_dev *wdev,
1884 s32 *dbm)
1885 {
1886 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1887 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
1888 s32 txpwrdbm;
1889 u8 result;
1890 s32 err = 0;
1891
1892 brcmf_dbg(TRACE, "Enter\n");
1893 if (!check_vif_up(ifp->vif))
1894 return -EIO;
1895
1896 err = brcmf_fil_iovar_int_get(ifp, "qtxpower", &txpwrdbm);
1897 if (err) {
1898 brcmf_err("error (%d)\n", err);
1899 goto done;
1900 }
1901
1902 result = (u8) (txpwrdbm & ~WL_TXPWR_OVERRIDE);
1903 *dbm = (s32) brcmf_qdbm_to_mw(result);
1904
1905 done:
1906 brcmf_dbg(TRACE, "Exit\n");
1907 return err;
1908 }
1909
1910 static s32
1911 brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev,
1912 u8 key_idx, bool unicast, bool multicast)
1913 {
1914 struct brcmf_if *ifp = netdev_priv(ndev);
1915 u32 index;
1916 u32 wsec;
1917 s32 err = 0;
1918
1919 brcmf_dbg(TRACE, "Enter\n");
1920 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
1921 if (!check_vif_up(ifp->vif))
1922 return -EIO;
1923
1924 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
1925 if (err) {
1926 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
1927 goto done;
1928 }
1929
1930 if (wsec & WEP_ENABLED) {
1931 /* Just select a new current key */
1932 index = key_idx;
1933 err = brcmf_fil_cmd_int_set(ifp,
1934 BRCMF_C_SET_KEY_PRIMARY, index);
1935 if (err)
1936 brcmf_err("error (%d)\n", err);
1937 }
1938 done:
1939 brcmf_dbg(TRACE, "Exit\n");
1940 return err;
1941 }
1942
1943 static s32
1944 brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev,
1945 u8 key_idx, const u8 *mac_addr, struct key_params *params)
1946 {
1947 struct brcmf_if *ifp = netdev_priv(ndev);
1948 struct brcmf_wsec_key key;
1949 s32 err = 0;
1950 u8 keybuf[8];
1951
1952 memset(&key, 0, sizeof(key));
1953 key.index = (u32) key_idx;
1954 /* Instead of bcast for ea address for default wep keys,
1955 driver needs it to be Null */
1956 if (!is_multicast_ether_addr(mac_addr))
1957 memcpy((char *)&key.ea, (void *)mac_addr, ETH_ALEN);
1958 key.len = (u32) params->key_len;
1959 /* check for key index change */
1960 if (key.len == 0) {
1961 /* key delete */
1962 err = send_key_to_dongle(ndev, &key);
1963 if (err)
1964 brcmf_err("key delete error (%d)\n", err);
1965 } else {
1966 if (key.len > sizeof(key.data)) {
1967 brcmf_err("Invalid key length (%d)\n", key.len);
1968 return -EINVAL;
1969 }
1970
1971 brcmf_dbg(CONN, "Setting the key index %d\n", key.index);
1972 memcpy(key.data, params->key, key.len);
1973
1974 if (!brcmf_is_apmode(ifp->vif) &&
1975 (params->cipher == WLAN_CIPHER_SUITE_TKIP)) {
1976 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
1977 memcpy(keybuf, &key.data[24], sizeof(keybuf));
1978 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
1979 memcpy(&key.data[16], keybuf, sizeof(keybuf));
1980 }
1981
1982 /* if IW_ENCODE_EXT_RX_SEQ_VALID set */
1983 if (params->seq && params->seq_len == 6) {
1984 /* rx iv */
1985 u8 *ivptr;
1986 ivptr = (u8 *) params->seq;
1987 key.rxiv.hi = (ivptr[5] << 24) | (ivptr[4] << 16) |
1988 (ivptr[3] << 8) | ivptr[2];
1989 key.rxiv.lo = (ivptr[1] << 8) | ivptr[0];
1990 key.iv_initialized = true;
1991 }
1992
1993 switch (params->cipher) {
1994 case WLAN_CIPHER_SUITE_WEP40:
1995 key.algo = CRYPTO_ALGO_WEP1;
1996 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
1997 break;
1998 case WLAN_CIPHER_SUITE_WEP104:
1999 key.algo = CRYPTO_ALGO_WEP128;
2000 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2001 break;
2002 case WLAN_CIPHER_SUITE_TKIP:
2003 key.algo = CRYPTO_ALGO_TKIP;
2004 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2005 break;
2006 case WLAN_CIPHER_SUITE_AES_CMAC:
2007 key.algo = CRYPTO_ALGO_AES_CCM;
2008 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2009 break;
2010 case WLAN_CIPHER_SUITE_CCMP:
2011 key.algo = CRYPTO_ALGO_AES_CCM;
2012 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2013 break;
2014 default:
2015 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2016 return -EINVAL;
2017 }
2018 err = send_key_to_dongle(ndev, &key);
2019 if (err)
2020 brcmf_err("wsec_key error (%d)\n", err);
2021 }
2022 return err;
2023 }
2024
2025 static s32
2026 brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
2027 u8 key_idx, bool pairwise, const u8 *mac_addr,
2028 struct key_params *params)
2029 {
2030 struct brcmf_if *ifp = netdev_priv(ndev);
2031 struct brcmf_wsec_key key;
2032 s32 val;
2033 s32 wsec;
2034 s32 err = 0;
2035 u8 keybuf[8];
2036
2037 brcmf_dbg(TRACE, "Enter\n");
2038 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2039 if (!check_vif_up(ifp->vif))
2040 return -EIO;
2041
2042 if (mac_addr &&
2043 (params->cipher != WLAN_CIPHER_SUITE_WEP40) &&
2044 (params->cipher != WLAN_CIPHER_SUITE_WEP104)) {
2045 brcmf_dbg(TRACE, "Exit");
2046 return brcmf_add_keyext(wiphy, ndev, key_idx, mac_addr, params);
2047 }
2048 memset(&key, 0, sizeof(key));
2049
2050 key.len = (u32) params->key_len;
2051 key.index = (u32) key_idx;
2052
2053 if (key.len > sizeof(key.data)) {
2054 brcmf_err("Too long key length (%u)\n", key.len);
2055 err = -EINVAL;
2056 goto done;
2057 }
2058 memcpy(key.data, params->key, key.len);
2059
2060 key.flags = BRCMF_PRIMARY_KEY;
2061 switch (params->cipher) {
2062 case WLAN_CIPHER_SUITE_WEP40:
2063 key.algo = CRYPTO_ALGO_WEP1;
2064 val = WEP_ENABLED;
2065 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2066 break;
2067 case WLAN_CIPHER_SUITE_WEP104:
2068 key.algo = CRYPTO_ALGO_WEP128;
2069 val = WEP_ENABLED;
2070 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2071 break;
2072 case WLAN_CIPHER_SUITE_TKIP:
2073 if (!brcmf_is_apmode(ifp->vif)) {
2074 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
2075 memcpy(keybuf, &key.data[24], sizeof(keybuf));
2076 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
2077 memcpy(&key.data[16], keybuf, sizeof(keybuf));
2078 }
2079 key.algo = CRYPTO_ALGO_TKIP;
2080 val = TKIP_ENABLED;
2081 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2082 break;
2083 case WLAN_CIPHER_SUITE_AES_CMAC:
2084 key.algo = CRYPTO_ALGO_AES_CCM;
2085 val = AES_ENABLED;
2086 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2087 break;
2088 case WLAN_CIPHER_SUITE_CCMP:
2089 key.algo = CRYPTO_ALGO_AES_CCM;
2090 val = AES_ENABLED;
2091 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2092 break;
2093 default:
2094 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2095 err = -EINVAL;
2096 goto done;
2097 }
2098
2099 err = send_key_to_dongle(ndev, &key);
2100 if (err)
2101 goto done;
2102
2103 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2104 if (err) {
2105 brcmf_err("get wsec error (%d)\n", err);
2106 goto done;
2107 }
2108 wsec |= val;
2109 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2110 if (err) {
2111 brcmf_err("set wsec error (%d)\n", err);
2112 goto done;
2113 }
2114
2115 done:
2116 brcmf_dbg(TRACE, "Exit\n");
2117 return err;
2118 }
2119
2120 static s32
2121 brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
2122 u8 key_idx, bool pairwise, const u8 *mac_addr)
2123 {
2124 struct brcmf_if *ifp = netdev_priv(ndev);
2125 struct brcmf_wsec_key key;
2126 s32 err = 0;
2127
2128 brcmf_dbg(TRACE, "Enter\n");
2129 if (!check_vif_up(ifp->vif))
2130 return -EIO;
2131
2132 if (key_idx >= DOT11_MAX_DEFAULT_KEYS) {
2133 /* we ignore this key index in this case */
2134 brcmf_err("invalid key index (%d)\n", key_idx);
2135 return -EINVAL;
2136 }
2137
2138 memset(&key, 0, sizeof(key));
2139
2140 key.index = (u32) key_idx;
2141 key.flags = BRCMF_PRIMARY_KEY;
2142 key.algo = CRYPTO_ALGO_OFF;
2143
2144 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2145
2146 /* Set the new key/index */
2147 err = send_key_to_dongle(ndev, &key);
2148
2149 brcmf_dbg(TRACE, "Exit\n");
2150 return err;
2151 }
2152
2153 static s32
2154 brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
2155 u8 key_idx, bool pairwise, const u8 *mac_addr, void *cookie,
2156 void (*callback) (void *cookie, struct key_params * params))
2157 {
2158 struct key_params params;
2159 struct brcmf_if *ifp = netdev_priv(ndev);
2160 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2161 struct brcmf_cfg80211_security *sec;
2162 s32 wsec;
2163 s32 err = 0;
2164
2165 brcmf_dbg(TRACE, "Enter\n");
2166 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2167 if (!check_vif_up(ifp->vif))
2168 return -EIO;
2169
2170 memset(&params, 0, sizeof(params));
2171
2172 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2173 if (err) {
2174 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2175 /* Ignore this error, may happen during DISASSOC */
2176 err = -EAGAIN;
2177 goto done;
2178 }
2179 if (wsec & WEP_ENABLED) {
2180 sec = &profile->sec;
2181 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) {
2182 params.cipher = WLAN_CIPHER_SUITE_WEP40;
2183 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2184 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) {
2185 params.cipher = WLAN_CIPHER_SUITE_WEP104;
2186 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2187 }
2188 } else if (wsec & TKIP_ENABLED) {
2189 params.cipher = WLAN_CIPHER_SUITE_TKIP;
2190 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2191 } else if (wsec & AES_ENABLED) {
2192 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
2193 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2194 } else {
2195 brcmf_err("Invalid algo (0x%x)\n", wsec);
2196 err = -EINVAL;
2197 goto done;
2198 }
2199 callback(cookie, &params);
2200
2201 done:
2202 brcmf_dbg(TRACE, "Exit\n");
2203 return err;
2204 }
2205
2206 static s32
2207 brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy,
2208 struct net_device *ndev, u8 key_idx)
2209 {
2210 brcmf_dbg(INFO, "Not supported\n");
2211
2212 return -EOPNOTSUPP;
2213 }
2214
2215 static s32
2216 brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
2217 const u8 *mac, struct station_info *sinfo)
2218 {
2219 struct brcmf_if *ifp = netdev_priv(ndev);
2220 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2221 struct brcmf_scb_val_le scb_val;
2222 int rssi;
2223 s32 rate;
2224 s32 err = 0;
2225 u8 *bssid = profile->bssid;
2226 struct brcmf_sta_info_le sta_info_le;
2227 u32 beacon_period;
2228 u32 dtim_period;
2229
2230 brcmf_dbg(TRACE, "Enter, MAC %pM\n", mac);
2231 if (!check_vif_up(ifp->vif))
2232 return -EIO;
2233
2234 if (brcmf_is_apmode(ifp->vif)) {
2235 memcpy(&sta_info_le, mac, ETH_ALEN);
2236 err = brcmf_fil_iovar_data_get(ifp, "sta_info",
2237 &sta_info_le,
2238 sizeof(sta_info_le));
2239 if (err < 0) {
2240 brcmf_err("GET STA INFO failed, %d\n", err);
2241 goto done;
2242 }
2243 sinfo->filled = STATION_INFO_INACTIVE_TIME;
2244 sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000;
2245 if (le32_to_cpu(sta_info_le.flags) & BRCMF_STA_ASSOC) {
2246 sinfo->filled |= STATION_INFO_CONNECTED_TIME;
2247 sinfo->connected_time = le32_to_cpu(sta_info_le.in);
2248 }
2249 brcmf_dbg(TRACE, "STA idle time : %d ms, connected time :%d sec\n",
2250 sinfo->inactive_time, sinfo->connected_time);
2251 } else if (ifp->vif->wdev.iftype == NL80211_IFTYPE_STATION) {
2252 if (memcmp(mac, bssid, ETH_ALEN)) {
2253 brcmf_err("Wrong Mac address cfg_mac-%pM wl_bssid-%pM\n",
2254 mac, bssid);
2255 err = -ENOENT;
2256 goto done;
2257 }
2258 /* Report the current tx rate */
2259 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate);
2260 if (err) {
2261 brcmf_err("Could not get rate (%d)\n", err);
2262 goto done;
2263 } else {
2264 sinfo->filled |= STATION_INFO_TX_BITRATE;
2265 sinfo->txrate.legacy = rate * 5;
2266 brcmf_dbg(CONN, "Rate %d Mbps\n", rate / 2);
2267 }
2268
2269 if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
2270 &ifp->vif->sme_state)) {
2271 memset(&scb_val, 0, sizeof(scb_val));
2272 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI,
2273 &scb_val, sizeof(scb_val));
2274 if (err) {
2275 brcmf_err("Could not get rssi (%d)\n", err);
2276 goto done;
2277 } else {
2278 rssi = le32_to_cpu(scb_val.val);
2279 sinfo->filled |= STATION_INFO_SIGNAL;
2280 sinfo->signal = rssi;
2281 brcmf_dbg(CONN, "RSSI %d dBm\n", rssi);
2282 }
2283 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_BCNPRD,
2284 &beacon_period);
2285 if (err) {
2286 brcmf_err("Could not get beacon period (%d)\n",
2287 err);
2288 goto done;
2289 } else {
2290 sinfo->bss_param.beacon_interval =
2291 beacon_period;
2292 brcmf_dbg(CONN, "Beacon peroid %d\n",
2293 beacon_period);
2294 }
2295 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_DTIMPRD,
2296 &dtim_period);
2297 if (err) {
2298 brcmf_err("Could not get DTIM period (%d)\n",
2299 err);
2300 goto done;
2301 } else {
2302 sinfo->bss_param.dtim_period = dtim_period;
2303 brcmf_dbg(CONN, "DTIM peroid %d\n",
2304 dtim_period);
2305 }
2306 sinfo->filled |= STATION_INFO_BSS_PARAM;
2307 }
2308 } else
2309 err = -EPERM;
2310 done:
2311 brcmf_dbg(TRACE, "Exit\n");
2312 return err;
2313 }
2314
2315 static s32
2316 brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
2317 bool enabled, s32 timeout)
2318 {
2319 s32 pm;
2320 s32 err = 0;
2321 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2322 struct brcmf_if *ifp = netdev_priv(ndev);
2323
2324 brcmf_dbg(TRACE, "Enter\n");
2325
2326 /*
2327 * Powersave enable/disable request is coming from the
2328 * cfg80211 even before the interface is up. In that
2329 * scenario, driver will be storing the power save
2330 * preference in cfg struct to apply this to
2331 * FW later while initializing the dongle
2332 */
2333 cfg->pwr_save = enabled;
2334 if (!check_vif_up(ifp->vif)) {
2335
2336 brcmf_dbg(INFO, "Device is not ready, storing the value in cfg_info struct\n");
2337 goto done;
2338 }
2339
2340 pm = enabled ? PM_FAST : PM_OFF;
2341 /* Do not enable the power save after assoc if it is a p2p interface */
2342 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) {
2343 brcmf_dbg(INFO, "Do not enable power save for P2P clients\n");
2344 pm = PM_OFF;
2345 }
2346 brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled"));
2347
2348 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm);
2349 if (err) {
2350 if (err == -ENODEV)
2351 brcmf_err("net_device is not ready yet\n");
2352 else
2353 brcmf_err("error (%d)\n", err);
2354 }
2355 done:
2356 brcmf_dbg(TRACE, "Exit\n");
2357 return err;
2358 }
2359
2360 static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
2361 struct brcmf_bss_info_le *bi)
2362 {
2363 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2364 struct ieee80211_channel *notify_channel;
2365 struct cfg80211_bss *bss;
2366 struct ieee80211_supported_band *band;
2367 struct brcmu_chan ch;
2368 u16 channel;
2369 u32 freq;
2370 u16 notify_capability;
2371 u16 notify_interval;
2372 u8 *notify_ie;
2373 size_t notify_ielen;
2374 s32 notify_signal;
2375
2376 if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) {
2377 brcmf_err("Bss info is larger than buffer. Discarding\n");
2378 return 0;
2379 }
2380
2381 if (!bi->ctl_ch) {
2382 ch.chspec = le16_to_cpu(bi->chanspec);
2383 cfg->d11inf.decchspec(&ch);
2384 bi->ctl_ch = ch.chnum;
2385 }
2386 channel = bi->ctl_ch;
2387
2388 if (channel <= CH_MAX_2G_CHANNEL)
2389 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2390 else
2391 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2392
2393 freq = ieee80211_channel_to_frequency(channel, band->band);
2394 notify_channel = ieee80211_get_channel(wiphy, freq);
2395
2396 notify_capability = le16_to_cpu(bi->capability);
2397 notify_interval = le16_to_cpu(bi->beacon_period);
2398 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2399 notify_ielen = le32_to_cpu(bi->ie_length);
2400 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2401
2402 brcmf_dbg(CONN, "bssid: %pM\n", bi->BSSID);
2403 brcmf_dbg(CONN, "Channel: %d(%d)\n", channel, freq);
2404 brcmf_dbg(CONN, "Capability: %X\n", notify_capability);
2405 brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval);
2406 brcmf_dbg(CONN, "Signal: %d\n", notify_signal);
2407
2408 bss = cfg80211_inform_bss(wiphy, notify_channel,
2409 CFG80211_BSS_FTYPE_UNKNOWN,
2410 (const u8 *)bi->BSSID,
2411 0, notify_capability,
2412 notify_interval, notify_ie,
2413 notify_ielen, notify_signal,
2414 GFP_KERNEL);
2415
2416 if (!bss)
2417 return -ENOMEM;
2418
2419 cfg80211_put_bss(wiphy, bss);
2420
2421 return 0;
2422 }
2423
2424 static struct brcmf_bss_info_le *
2425 next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss)
2426 {
2427 if (bss == NULL)
2428 return list->bss_info_le;
2429 return (struct brcmf_bss_info_le *)((unsigned long)bss +
2430 le32_to_cpu(bss->length));
2431 }
2432
2433 static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg)
2434 {
2435 struct brcmf_scan_results *bss_list;
2436 struct brcmf_bss_info_le *bi = NULL; /* must be initialized */
2437 s32 err = 0;
2438 int i;
2439
2440 bss_list = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
2441 if (bss_list->count != 0 &&
2442 bss_list->version != BRCMF_BSS_INFO_VERSION) {
2443 brcmf_err("Version %d != WL_BSS_INFO_VERSION\n",
2444 bss_list->version);
2445 return -EOPNOTSUPP;
2446 }
2447 brcmf_dbg(SCAN, "scanned AP count (%d)\n", bss_list->count);
2448 for (i = 0; i < bss_list->count; i++) {
2449 bi = next_bss_le(bss_list, bi);
2450 err = brcmf_inform_single_bss(cfg, bi);
2451 if (err)
2452 break;
2453 }
2454 return err;
2455 }
2456
2457 static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg,
2458 struct net_device *ndev, const u8 *bssid)
2459 {
2460 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2461 struct ieee80211_channel *notify_channel;
2462 struct brcmf_bss_info_le *bi = NULL;
2463 struct ieee80211_supported_band *band;
2464 struct cfg80211_bss *bss;
2465 struct brcmu_chan ch;
2466 u8 *buf = NULL;
2467 s32 err = 0;
2468 u32 freq;
2469 u16 notify_capability;
2470 u16 notify_interval;
2471 u8 *notify_ie;
2472 size_t notify_ielen;
2473 s32 notify_signal;
2474
2475 brcmf_dbg(TRACE, "Enter\n");
2476
2477 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
2478 if (buf == NULL) {
2479 err = -ENOMEM;
2480 goto CleanUp;
2481 }
2482
2483 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
2484
2485 err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO,
2486 buf, WL_BSS_INFO_MAX);
2487 if (err) {
2488 brcmf_err("WLC_GET_BSS_INFO failed: %d\n", err);
2489 goto CleanUp;
2490 }
2491
2492 bi = (struct brcmf_bss_info_le *)(buf + 4);
2493
2494 ch.chspec = le16_to_cpu(bi->chanspec);
2495 cfg->d11inf.decchspec(&ch);
2496
2497 if (ch.band == BRCMU_CHAN_BAND_2G)
2498 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2499 else
2500 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2501
2502 freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
2503 notify_channel = ieee80211_get_channel(wiphy, freq);
2504
2505 notify_capability = le16_to_cpu(bi->capability);
2506 notify_interval = le16_to_cpu(bi->beacon_period);
2507 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2508 notify_ielen = le32_to_cpu(bi->ie_length);
2509 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2510
2511 brcmf_dbg(CONN, "channel: %d(%d)\n", ch.chnum, freq);
2512 brcmf_dbg(CONN, "capability: %X\n", notify_capability);
2513 brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval);
2514 brcmf_dbg(CONN, "signal: %d\n", notify_signal);
2515
2516 bss = cfg80211_inform_bss(wiphy, notify_channel,
2517 CFG80211_BSS_FTYPE_UNKNOWN, bssid, 0,
2518 notify_capability, notify_interval,
2519 notify_ie, notify_ielen, notify_signal,
2520 GFP_KERNEL);
2521
2522 if (!bss) {
2523 err = -ENOMEM;
2524 goto CleanUp;
2525 }
2526
2527 cfg80211_put_bss(wiphy, bss);
2528
2529 CleanUp:
2530
2531 kfree(buf);
2532
2533 brcmf_dbg(TRACE, "Exit\n");
2534
2535 return err;
2536 }
2537
2538 static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg,
2539 struct brcmf_if *ifp)
2540 {
2541 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ifp->ndev);
2542 struct brcmf_bss_info_le *bi;
2543 struct brcmf_ssid *ssid;
2544 const struct brcmf_tlv *tim;
2545 u16 beacon_interval;
2546 u8 dtim_period;
2547 size_t ie_len;
2548 u8 *ie;
2549 s32 err = 0;
2550
2551 brcmf_dbg(TRACE, "Enter\n");
2552 if (brcmf_is_ibssmode(ifp->vif))
2553 return err;
2554
2555 ssid = &profile->ssid;
2556
2557 *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX);
2558 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
2559 cfg->extra_buf, WL_EXTRA_BUF_MAX);
2560 if (err) {
2561 brcmf_err("Could not get bss info %d\n", err);
2562 goto update_bss_info_out;
2563 }
2564
2565 bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4);
2566 err = brcmf_inform_single_bss(cfg, bi);
2567 if (err)
2568 goto update_bss_info_out;
2569
2570 ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset);
2571 ie_len = le32_to_cpu(bi->ie_length);
2572 beacon_interval = le16_to_cpu(bi->beacon_period);
2573
2574 tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM);
2575 if (tim)
2576 dtim_period = tim->data[1];
2577 else {
2578 /*
2579 * active scan was done so we could not get dtim
2580 * information out of probe response.
2581 * so we speficially query dtim information to dongle.
2582 */
2583 u32 var;
2584 err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var);
2585 if (err) {
2586 brcmf_err("wl dtim_assoc failed (%d)\n", err);
2587 goto update_bss_info_out;
2588 }
2589 dtim_period = (u8)var;
2590 }
2591
2592 update_bss_info_out:
2593 brcmf_dbg(TRACE, "Exit");
2594 return err;
2595 }
2596
2597 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg)
2598 {
2599 struct escan_info *escan = &cfg->escan_info;
2600
2601 set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2602 if (cfg->scan_request) {
2603 escan->escan_state = WL_ESCAN_STATE_IDLE;
2604 brcmf_notify_escan_complete(cfg, escan->ifp, true, true);
2605 }
2606 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2607 clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2608 }
2609
2610 static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
2611 {
2612 struct brcmf_cfg80211_info *cfg =
2613 container_of(work, struct brcmf_cfg80211_info,
2614 escan_timeout_work);
2615
2616 brcmf_inform_bss(cfg);
2617 brcmf_notify_escan_complete(cfg, cfg->escan_info.ifp, true, true);
2618 }
2619
2620 static void brcmf_escan_timeout(unsigned long data)
2621 {
2622 struct brcmf_cfg80211_info *cfg =
2623 (struct brcmf_cfg80211_info *)data;
2624
2625 if (cfg->scan_request) {
2626 brcmf_err("timer expired\n");
2627 schedule_work(&cfg->escan_timeout_work);
2628 }
2629 }
2630
2631 static s32
2632 brcmf_compare_update_same_bss(struct brcmf_cfg80211_info *cfg,
2633 struct brcmf_bss_info_le *bss,
2634 struct brcmf_bss_info_le *bss_info_le)
2635 {
2636 struct brcmu_chan ch_bss, ch_bss_info_le;
2637
2638 ch_bss.chspec = le16_to_cpu(bss->chanspec);
2639 cfg->d11inf.decchspec(&ch_bss);
2640 ch_bss_info_le.chspec = le16_to_cpu(bss_info_le->chanspec);
2641 cfg->d11inf.decchspec(&ch_bss_info_le);
2642
2643 if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) &&
2644 ch_bss.band == ch_bss_info_le.band &&
2645 bss_info_le->SSID_len == bss->SSID_len &&
2646 !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) {
2647 if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) ==
2648 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL)) {
2649 s16 bss_rssi = le16_to_cpu(bss->RSSI);
2650 s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI);
2651
2652 /* preserve max RSSI if the measurements are
2653 * both on-channel or both off-channel
2654 */
2655 if (bss_info_rssi > bss_rssi)
2656 bss->RSSI = bss_info_le->RSSI;
2657 } else if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) &&
2658 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == 0) {
2659 /* preserve the on-channel rssi measurement
2660 * if the new measurement is off channel
2661 */
2662 bss->RSSI = bss_info_le->RSSI;
2663 bss->flags |= BRCMF_BSS_RSSI_ON_CHANNEL;
2664 }
2665 return 1;
2666 }
2667 return 0;
2668 }
2669
2670 static s32
2671 brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
2672 const struct brcmf_event_msg *e, void *data)
2673 {
2674 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
2675 s32 status;
2676 struct brcmf_escan_result_le *escan_result_le;
2677 struct brcmf_bss_info_le *bss_info_le;
2678 struct brcmf_bss_info_le *bss = NULL;
2679 u32 bi_length;
2680 struct brcmf_scan_results *list;
2681 u32 i;
2682 bool aborted;
2683
2684 status = e->status;
2685
2686 if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
2687 brcmf_err("scan not ready, bssidx=%d\n", ifp->bssidx);
2688 return -EPERM;
2689 }
2690
2691 if (status == BRCMF_E_STATUS_PARTIAL) {
2692 brcmf_dbg(SCAN, "ESCAN Partial result\n");
2693 escan_result_le = (struct brcmf_escan_result_le *) data;
2694 if (!escan_result_le) {
2695 brcmf_err("Invalid escan result (NULL pointer)\n");
2696 goto exit;
2697 }
2698 if (le16_to_cpu(escan_result_le->bss_count) != 1) {
2699 brcmf_err("Invalid bss_count %d: ignoring\n",
2700 escan_result_le->bss_count);
2701 goto exit;
2702 }
2703 bss_info_le = &escan_result_le->bss_info_le;
2704
2705 if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le))
2706 goto exit;
2707
2708 if (!cfg->scan_request) {
2709 brcmf_dbg(SCAN, "result without cfg80211 request\n");
2710 goto exit;
2711 }
2712
2713 bi_length = le32_to_cpu(bss_info_le->length);
2714 if (bi_length != (le32_to_cpu(escan_result_le->buflen) -
2715 WL_ESCAN_RESULTS_FIXED_SIZE)) {
2716 brcmf_err("Invalid bss_info length %d: ignoring\n",
2717 bi_length);
2718 goto exit;
2719 }
2720
2721 if (!(cfg_to_wiphy(cfg)->interface_modes &
2722 BIT(NL80211_IFTYPE_ADHOC))) {
2723 if (le16_to_cpu(bss_info_le->capability) &
2724 WLAN_CAPABILITY_IBSS) {
2725 brcmf_err("Ignoring IBSS result\n");
2726 goto exit;
2727 }
2728 }
2729
2730 list = (struct brcmf_scan_results *)
2731 cfg->escan_info.escan_buf;
2732 if (bi_length > WL_ESCAN_BUF_SIZE - list->buflen) {
2733 brcmf_err("Buffer is too small: ignoring\n");
2734 goto exit;
2735 }
2736
2737 for (i = 0; i < list->count; i++) {
2738 bss = bss ? (struct brcmf_bss_info_le *)
2739 ((unsigned char *)bss +
2740 le32_to_cpu(bss->length)) : list->bss_info_le;
2741 if (brcmf_compare_update_same_bss(cfg, bss,
2742 bss_info_le))
2743 goto exit;
2744 }
2745 memcpy(&(cfg->escan_info.escan_buf[list->buflen]),
2746 bss_info_le, bi_length);
2747 list->version = le32_to_cpu(bss_info_le->version);
2748 list->buflen += bi_length;
2749 list->count++;
2750 } else {
2751 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2752 if (brcmf_p2p_scan_finding_common_channel(cfg, NULL))
2753 goto exit;
2754 if (cfg->scan_request) {
2755 brcmf_inform_bss(cfg);
2756 aborted = status != BRCMF_E_STATUS_SUCCESS;
2757 brcmf_notify_escan_complete(cfg, ifp, aborted, false);
2758 } else
2759 brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n",
2760 status);
2761 }
2762 exit:
2763 return 0;
2764 }
2765
2766 static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg)
2767 {
2768 brcmf_fweh_register(cfg->pub, BRCMF_E_ESCAN_RESULT,
2769 brcmf_cfg80211_escan_handler);
2770 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2771 /* Init scan_timeout timer */
2772 init_timer(&cfg->escan_timeout);
2773 cfg->escan_timeout.data = (unsigned long) cfg;
2774 cfg->escan_timeout.function = brcmf_escan_timeout;
2775 INIT_WORK(&cfg->escan_timeout_work,
2776 brcmf_cfg80211_escan_timeout_worker);
2777 }
2778
2779 static __always_inline void brcmf_delay(u32 ms)
2780 {
2781 if (ms < 1000 / HZ) {
2782 cond_resched();
2783 mdelay(ms);
2784 } else {
2785 msleep(ms);
2786 }
2787 }
2788
2789 static s32 brcmf_config_wowl_pattern(struct brcmf_if *ifp, u8 cmd[4],
2790 u8 *pattern, u32 patternsize, u8 *mask,
2791 u32 packet_offset)
2792 {
2793 struct brcmf_fil_wowl_pattern_le *filter;
2794 u32 masksize;
2795 u32 patternoffset;
2796 u8 *buf;
2797 u32 bufsize;
2798 s32 ret;
2799
2800 masksize = (patternsize + 7) / 8;
2801 patternoffset = sizeof(*filter) - sizeof(filter->cmd) + masksize;
2802
2803 bufsize = sizeof(*filter) + patternsize + masksize;
2804 buf = kzalloc(bufsize, GFP_KERNEL);
2805 if (!buf)
2806 return -ENOMEM;
2807 filter = (struct brcmf_fil_wowl_pattern_le *)buf;
2808
2809 memcpy(filter->cmd, cmd, 4);
2810 filter->masksize = cpu_to_le32(masksize);
2811 filter->offset = cpu_to_le32(packet_offset);
2812 filter->patternoffset = cpu_to_le32(patternoffset);
2813 filter->patternsize = cpu_to_le32(patternsize);
2814 filter->type = cpu_to_le32(BRCMF_WOWL_PATTERN_TYPE_BITMAP);
2815
2816 if ((mask) && (masksize))
2817 memcpy(buf + sizeof(*filter), mask, masksize);
2818 if ((pattern) && (patternsize))
2819 memcpy(buf + sizeof(*filter) + masksize, pattern, patternsize);
2820
2821 ret = brcmf_fil_iovar_data_set(ifp, "wowl_pattern", buf, bufsize);
2822
2823 kfree(buf);
2824 return ret;
2825 }
2826
2827 static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
2828 {
2829 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2830 struct net_device *ndev = cfg_to_ndev(cfg);
2831 struct brcmf_if *ifp = netdev_priv(ndev);
2832
2833 brcmf_dbg(TRACE, "Enter\n");
2834
2835 if (cfg->wowl_enabled) {
2836 brcmf_configure_arp_offload(ifp, true);
2837 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM,
2838 cfg->pre_wowl_pmmode);
2839 brcmf_fil_iovar_int_set(ifp, "wowl_clear", 0);
2840 brcmf_config_wowl_pattern(ifp, "clr", NULL, 0, NULL, 0);
2841 cfg->wowl_enabled = false;
2842 }
2843 return 0;
2844 }
2845
2846 static void brcmf_configure_wowl(struct brcmf_cfg80211_info *cfg,
2847 struct brcmf_if *ifp,
2848 struct cfg80211_wowlan *wowl)
2849 {
2850 u32 wowl_config;
2851 u32 i;
2852
2853 brcmf_dbg(TRACE, "Suspend, wowl config.\n");
2854
2855 brcmf_configure_arp_offload(ifp, false);
2856 brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_PM, &cfg->pre_wowl_pmmode);
2857 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, PM_MAX);
2858
2859 wowl_config = 0;
2860 if (wowl->disconnect)
2861 wowl_config = BRCMF_WOWL_DIS | BRCMF_WOWL_BCN | BRCMF_WOWL_RETR;
2862 if (wowl->magic_pkt)
2863 wowl_config |= BRCMF_WOWL_MAGIC;
2864 if ((wowl->patterns) && (wowl->n_patterns)) {
2865 wowl_config |= BRCMF_WOWL_NET;
2866 for (i = 0; i < wowl->n_patterns; i++) {
2867 brcmf_config_wowl_pattern(ifp, "add",
2868 (u8 *)wowl->patterns[i].pattern,
2869 wowl->patterns[i].pattern_len,
2870 (u8 *)wowl->patterns[i].mask,
2871 wowl->patterns[i].pkt_offset);
2872 }
2873 }
2874 brcmf_fil_iovar_int_set(ifp, "wowl", wowl_config);
2875 brcmf_fil_iovar_int_set(ifp, "wowl_activate", 1);
2876 brcmf_bus_wowl_config(cfg->pub->bus_if, true);
2877 cfg->wowl_enabled = true;
2878 }
2879
2880 static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
2881 struct cfg80211_wowlan *wowl)
2882 {
2883 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2884 struct net_device *ndev = cfg_to_ndev(cfg);
2885 struct brcmf_if *ifp = netdev_priv(ndev);
2886 struct brcmf_cfg80211_vif *vif;
2887
2888 brcmf_dbg(TRACE, "Enter\n");
2889
2890 /* if the primary net_device is not READY there is nothing
2891 * we can do but pray resume goes smoothly.
2892 */
2893 if (!check_vif_up(ifp->vif))
2894 goto exit;
2895
2896 /* end any scanning */
2897 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
2898 brcmf_abort_scanning(cfg);
2899
2900 if (wowl == NULL) {
2901 brcmf_bus_wowl_config(cfg->pub->bus_if, false);
2902 list_for_each_entry(vif, &cfg->vif_list, list) {
2903 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state))
2904 continue;
2905 /* While going to suspend if associated with AP
2906 * disassociate from AP to save power while system is
2907 * in suspended state
2908 */
2909 brcmf_link_down(vif);
2910 /* Make sure WPA_Supplicant receives all the event
2911 * generated due to DISASSOC call to the fw to keep
2912 * the state fw and WPA_Supplicant state consistent
2913 */
2914 brcmf_delay(500);
2915 }
2916 /* Configure MPC */
2917 brcmf_set_mpc(ifp, 1);
2918
2919 } else {
2920 /* Configure WOWL paramaters */
2921 brcmf_configure_wowl(cfg, ifp, wowl);
2922 }
2923
2924 exit:
2925 brcmf_dbg(TRACE, "Exit\n");
2926 /* clear any scanning activity */
2927 cfg->scan_status = 0;
2928 return 0;
2929 }
2930
2931 static __used s32
2932 brcmf_update_pmklist(struct net_device *ndev,
2933 struct brcmf_cfg80211_pmk_list *pmk_list, s32 err)
2934 {
2935 int i, j;
2936 u32 pmkid_len;
2937
2938 pmkid_len = le32_to_cpu(pmk_list->pmkids.npmkid);
2939
2940 brcmf_dbg(CONN, "No of elements %d\n", pmkid_len);
2941 for (i = 0; i < pmkid_len; i++) {
2942 brcmf_dbg(CONN, "PMKID[%d]: %pM =\n", i,
2943 &pmk_list->pmkids.pmkid[i].BSSID);
2944 for (j = 0; j < WLAN_PMKID_LEN; j++)
2945 brcmf_dbg(CONN, "%02x\n",
2946 pmk_list->pmkids.pmkid[i].PMKID[j]);
2947 }
2948
2949 if (!err)
2950 brcmf_fil_iovar_data_set(netdev_priv(ndev), "pmkid_info",
2951 (char *)pmk_list, sizeof(*pmk_list));
2952
2953 return err;
2954 }
2955
2956 static s32
2957 brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev,
2958 struct cfg80211_pmksa *pmksa)
2959 {
2960 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2961 struct brcmf_if *ifp = netdev_priv(ndev);
2962 struct pmkid_list *pmkids = &cfg->pmk_list->pmkids;
2963 s32 err = 0;
2964 u32 pmkid_len, i;
2965
2966 brcmf_dbg(TRACE, "Enter\n");
2967 if (!check_vif_up(ifp->vif))
2968 return -EIO;
2969
2970 pmkid_len = le32_to_cpu(pmkids->npmkid);
2971 for (i = 0; i < pmkid_len; i++)
2972 if (!memcmp(pmksa->bssid, pmkids->pmkid[i].BSSID, ETH_ALEN))
2973 break;
2974 if (i < WL_NUM_PMKIDS_MAX) {
2975 memcpy(pmkids->pmkid[i].BSSID, pmksa->bssid, ETH_ALEN);
2976 memcpy(pmkids->pmkid[i].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
2977 if (i == pmkid_len) {
2978 pmkid_len++;
2979 pmkids->npmkid = cpu_to_le32(pmkid_len);
2980 }
2981 } else
2982 err = -EINVAL;
2983
2984 brcmf_dbg(CONN, "set_pmksa,IW_PMKSA_ADD - PMKID: %pM =\n",
2985 pmkids->pmkid[pmkid_len].BSSID);
2986 for (i = 0; i < WLAN_PMKID_LEN; i++)
2987 brcmf_dbg(CONN, "%02x\n", pmkids->pmkid[pmkid_len].PMKID[i]);
2988
2989 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
2990
2991 brcmf_dbg(TRACE, "Exit\n");
2992 return err;
2993 }
2994
2995 static s32
2996 brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
2997 struct cfg80211_pmksa *pmksa)
2998 {
2999 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3000 struct brcmf_if *ifp = netdev_priv(ndev);
3001 struct pmkid_list pmkid;
3002 s32 err = 0;
3003 u32 pmkid_len, i;
3004
3005 brcmf_dbg(TRACE, "Enter\n");
3006 if (!check_vif_up(ifp->vif))
3007 return -EIO;
3008
3009 memcpy(&pmkid.pmkid[0].BSSID, pmksa->bssid, ETH_ALEN);
3010 memcpy(&pmkid.pmkid[0].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
3011
3012 brcmf_dbg(CONN, "del_pmksa,IW_PMKSA_REMOVE - PMKID: %pM =\n",
3013 &pmkid.pmkid[0].BSSID);
3014 for (i = 0; i < WLAN_PMKID_LEN; i++)
3015 brcmf_dbg(CONN, "%02x\n", pmkid.pmkid[0].PMKID[i]);
3016
3017 pmkid_len = le32_to_cpu(cfg->pmk_list->pmkids.npmkid);
3018 for (i = 0; i < pmkid_len; i++)
3019 if (!memcmp
3020 (pmksa->bssid, &cfg->pmk_list->pmkids.pmkid[i].BSSID,
3021 ETH_ALEN))
3022 break;
3023
3024 if ((pmkid_len > 0)
3025 && (i < pmkid_len)) {
3026 memset(&cfg->pmk_list->pmkids.pmkid[i], 0,
3027 sizeof(struct pmkid));
3028 for (; i < (pmkid_len - 1); i++) {
3029 memcpy(&cfg->pmk_list->pmkids.pmkid[i].BSSID,
3030 &cfg->pmk_list->pmkids.pmkid[i + 1].BSSID,
3031 ETH_ALEN);
3032 memcpy(&cfg->pmk_list->pmkids.pmkid[i].PMKID,
3033 &cfg->pmk_list->pmkids.pmkid[i + 1].PMKID,
3034 WLAN_PMKID_LEN);
3035 }
3036 cfg->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1);
3037 } else
3038 err = -EINVAL;
3039
3040 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3041
3042 brcmf_dbg(TRACE, "Exit\n");
3043 return err;
3044
3045 }
3046
3047 static s32
3048 brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev)
3049 {
3050 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3051 struct brcmf_if *ifp = netdev_priv(ndev);
3052 s32 err = 0;
3053
3054 brcmf_dbg(TRACE, "Enter\n");
3055 if (!check_vif_up(ifp->vif))
3056 return -EIO;
3057
3058 memset(cfg->pmk_list, 0, sizeof(*cfg->pmk_list));
3059 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3060
3061 brcmf_dbg(TRACE, "Exit\n");
3062 return err;
3063
3064 }
3065
3066 /*
3067 * PFN result doesn't have all the info which are
3068 * required by the supplicant
3069 * (For e.g IEs) Do a target Escan so that sched scan results are reported
3070 * via wl_inform_single_bss in the required format. Escan does require the
3071 * scan request in the form of cfg80211_scan_request. For timebeing, create
3072 * cfg80211_scan_request one out of the received PNO event.
3073 */
3074 static s32
3075 brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
3076 const struct brcmf_event_msg *e, void *data)
3077 {
3078 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
3079 struct brcmf_pno_net_info_le *netinfo, *netinfo_start;
3080 struct cfg80211_scan_request *request = NULL;
3081 struct cfg80211_ssid *ssid = NULL;
3082 struct ieee80211_channel *channel = NULL;
3083 struct wiphy *wiphy = cfg_to_wiphy(cfg);
3084 int err = 0;
3085 int channel_req = 0;
3086 int band = 0;
3087 struct brcmf_pno_scanresults_le *pfn_result;
3088 u32 result_count;
3089 u32 status;
3090
3091 brcmf_dbg(SCAN, "Enter\n");
3092
3093 if (e->event_code == BRCMF_E_PFN_NET_LOST) {
3094 brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n");
3095 return 0;
3096 }
3097
3098 pfn_result = (struct brcmf_pno_scanresults_le *)data;
3099 result_count = le32_to_cpu(pfn_result->count);
3100 status = le32_to_cpu(pfn_result->status);
3101
3102 /*
3103 * PFN event is limited to fit 512 bytes so we may get
3104 * multiple NET_FOUND events. For now place a warning here.
3105 */
3106 WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE);
3107 brcmf_dbg(SCAN, "PFN NET FOUND event. count: %d\n", result_count);
3108 if (result_count > 0) {
3109 int i;
3110
3111 request = kzalloc(sizeof(*request), GFP_KERNEL);
3112 ssid = kcalloc(result_count, sizeof(*ssid), GFP_KERNEL);
3113 channel = kcalloc(result_count, sizeof(*channel), GFP_KERNEL);
3114 if (!request || !ssid || !channel) {
3115 err = -ENOMEM;
3116 goto out_err;
3117 }
3118
3119 request->wiphy = wiphy;
3120 data += sizeof(struct brcmf_pno_scanresults_le);
3121 netinfo_start = (struct brcmf_pno_net_info_le *)data;
3122
3123 for (i = 0; i < result_count; i++) {
3124 netinfo = &netinfo_start[i];
3125 if (!netinfo) {
3126 brcmf_err("Invalid netinfo ptr. index: %d\n",
3127 i);
3128 err = -EINVAL;
3129 goto out_err;
3130 }
3131
3132 brcmf_dbg(SCAN, "SSID:%s Channel:%d\n",
3133 netinfo->SSID, netinfo->channel);
3134 memcpy(ssid[i].ssid, netinfo->SSID, netinfo->SSID_len);
3135 ssid[i].ssid_len = netinfo->SSID_len;
3136 request->n_ssids++;
3137
3138 channel_req = netinfo->channel;
3139 if (channel_req <= CH_MAX_2G_CHANNEL)
3140 band = NL80211_BAND_2GHZ;
3141 else
3142 band = NL80211_BAND_5GHZ;
3143 channel[i].center_freq =
3144 ieee80211_channel_to_frequency(channel_req,
3145 band);
3146 channel[i].band = band;
3147 channel[i].flags |= IEEE80211_CHAN_NO_HT40;
3148 request->channels[i] = &channel[i];
3149 request->n_channels++;
3150 }
3151
3152 /* assign parsed ssid array */
3153 if (request->n_ssids)
3154 request->ssids = &ssid[0];
3155
3156 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3157 /* Abort any on-going scan */
3158 brcmf_abort_scanning(cfg);
3159 }
3160
3161 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3162 cfg->escan_info.run = brcmf_run_escan;
3163 err = brcmf_do_escan(cfg, wiphy, ifp, request);
3164 if (err) {
3165 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3166 goto out_err;
3167 }
3168 cfg->sched_escan = true;
3169 cfg->scan_request = request;
3170 } else {
3171 brcmf_err("FALSE PNO Event. (pfn_count == 0)\n");
3172 goto out_err;
3173 }
3174
3175 kfree(ssid);
3176 kfree(channel);
3177 kfree(request);
3178 return 0;
3179
3180 out_err:
3181 kfree(ssid);
3182 kfree(channel);
3183 kfree(request);
3184 cfg80211_sched_scan_stopped(wiphy);
3185 return err;
3186 }
3187
3188 static int brcmf_dev_pno_clean(struct net_device *ndev)
3189 {
3190 int ret;
3191
3192 /* Disable pfn */
3193 ret = brcmf_fil_iovar_int_set(netdev_priv(ndev), "pfn", 0);
3194 if (ret == 0) {
3195 /* clear pfn */
3196 ret = brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfnclear",
3197 NULL, 0);
3198 }
3199 if (ret < 0)
3200 brcmf_err("failed code %d\n", ret);
3201
3202 return ret;
3203 }
3204
3205 static int brcmf_dev_pno_config(struct net_device *ndev)
3206 {
3207 struct brcmf_pno_param_le pfn_param;
3208
3209 memset(&pfn_param, 0, sizeof(pfn_param));
3210 pfn_param.version = cpu_to_le32(BRCMF_PNO_VERSION);
3211
3212 /* set extra pno params */
3213 pfn_param.flags = cpu_to_le16(1 << BRCMF_PNO_ENABLE_ADAPTSCAN_BIT);
3214 pfn_param.repeat = BRCMF_PNO_REPEAT;
3215 pfn_param.exp = BRCMF_PNO_FREQ_EXPO_MAX;
3216
3217 /* set up pno scan fr */
3218 pfn_param.scan_freq = cpu_to_le32(BRCMF_PNO_TIME);
3219
3220 return brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfn_set",
3221 &pfn_param, sizeof(pfn_param));
3222 }
3223
3224 static int
3225 brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
3226 struct net_device *ndev,
3227 struct cfg80211_sched_scan_request *request)
3228 {
3229 struct brcmf_if *ifp = netdev_priv(ndev);
3230 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
3231 struct brcmf_pno_net_param_le pfn;
3232 int i;
3233 int ret = 0;
3234
3235 brcmf_dbg(SCAN, "Enter n_match_sets:%d n_ssids:%d\n",
3236 request->n_match_sets, request->n_ssids);
3237 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3238 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
3239 return -EAGAIN;
3240 }
3241 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
3242 brcmf_err("Scanning suppressed: status (%lu)\n",
3243 cfg->scan_status);
3244 return -EAGAIN;
3245 }
3246
3247 if (!request->n_ssids || !request->n_match_sets) {
3248 brcmf_dbg(SCAN, "Invalid sched scan req!! n_ssids:%d\n",
3249 request->n_ssids);
3250 return -EINVAL;
3251 }
3252
3253 if (request->n_ssids > 0) {
3254 for (i = 0; i < request->n_ssids; i++) {
3255 /* Active scan req for ssids */
3256 brcmf_dbg(SCAN, ">>> Active scan req for ssid (%s)\n",
3257 request->ssids[i].ssid);
3258
3259 /*
3260 * match_set ssids is a supert set of n_ssid list,
3261 * so we need not add these set seperately.
3262 */
3263 }
3264 }
3265
3266 if (request->n_match_sets > 0) {
3267 /* clean up everything */
3268 ret = brcmf_dev_pno_clean(ndev);
3269 if (ret < 0) {
3270 brcmf_err("failed error=%d\n", ret);
3271 return ret;
3272 }
3273
3274 /* configure pno */
3275 ret = brcmf_dev_pno_config(ndev);
3276 if (ret < 0) {
3277 brcmf_err("PNO setup failed!! ret=%d\n", ret);
3278 return -EINVAL;
3279 }
3280
3281 /* configure each match set */
3282 for (i = 0; i < request->n_match_sets; i++) {
3283 struct cfg80211_ssid *ssid;
3284 u32 ssid_len;
3285
3286 ssid = &request->match_sets[i].ssid;
3287 ssid_len = ssid->ssid_len;
3288
3289 if (!ssid_len) {
3290 brcmf_err("skip broadcast ssid\n");
3291 continue;
3292 }
3293 pfn.auth = cpu_to_le32(WLAN_AUTH_OPEN);
3294 pfn.wpa_auth = cpu_to_le32(BRCMF_PNO_WPA_AUTH_ANY);
3295 pfn.wsec = cpu_to_le32(0);
3296 pfn.infra = cpu_to_le32(1);
3297 pfn.flags = cpu_to_le32(1 << BRCMF_PNO_HIDDEN_BIT);
3298 pfn.ssid.SSID_len = cpu_to_le32(ssid_len);
3299 memcpy(pfn.ssid.SSID, ssid->ssid, ssid_len);
3300 ret = brcmf_fil_iovar_data_set(ifp, "pfn_add", &pfn,
3301 sizeof(pfn));
3302 brcmf_dbg(SCAN, ">>> PNO filter %s for ssid (%s)\n",
3303 ret == 0 ? "set" : "failed", ssid->ssid);
3304 }
3305 /* Enable the PNO */
3306 if (brcmf_fil_iovar_int_set(ifp, "pfn", 1) < 0) {
3307 brcmf_err("PNO enable failed!! ret=%d\n", ret);
3308 return -EINVAL;
3309 }
3310 } else {
3311 return -EINVAL;
3312 }
3313
3314 return 0;
3315 }
3316
3317 static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy,
3318 struct net_device *ndev)
3319 {
3320 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3321
3322 brcmf_dbg(SCAN, "enter\n");
3323 brcmf_dev_pno_clean(ndev);
3324 if (cfg->sched_escan)
3325 brcmf_notify_escan_complete(cfg, netdev_priv(ndev), true, true);
3326 return 0;
3327 }
3328
3329 static s32 brcmf_configure_opensecurity(struct brcmf_if *ifp)
3330 {
3331 s32 err;
3332
3333 /* set auth */
3334 err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0);
3335 if (err < 0) {
3336 brcmf_err("auth error %d\n", err);
3337 return err;
3338 }
3339 /* set wsec */
3340 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0);
3341 if (err < 0) {
3342 brcmf_err("wsec error %d\n", err);
3343 return err;
3344 }
3345 /* set upper-layer auth */
3346 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", WPA_AUTH_NONE);
3347 if (err < 0) {
3348 brcmf_err("wpa_auth error %d\n", err);
3349 return err;
3350 }
3351
3352 return 0;
3353 }
3354
3355 static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie)
3356 {
3357 if (is_rsn_ie)
3358 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0);
3359
3360 return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0);
3361 }
3362
3363 static s32
3364 brcmf_configure_wpaie(struct net_device *ndev,
3365 const struct brcmf_vs_tlv *wpa_ie,
3366 bool is_rsn_ie)
3367 {
3368 struct brcmf_if *ifp = netdev_priv(ndev);
3369 u32 auth = 0; /* d11 open authentication */
3370 u16 count;
3371 s32 err = 0;
3372 s32 len = 0;
3373 u32 i;
3374 u32 wsec;
3375 u32 pval = 0;
3376 u32 gval = 0;
3377 u32 wpa_auth = 0;
3378 u32 offset;
3379 u8 *data;
3380 u16 rsn_cap;
3381 u32 wme_bss_disable;
3382
3383 brcmf_dbg(TRACE, "Enter\n");
3384 if (wpa_ie == NULL)
3385 goto exit;
3386
3387 len = wpa_ie->len + TLV_HDR_LEN;
3388 data = (u8 *)wpa_ie;
3389 offset = TLV_HDR_LEN;
3390 if (!is_rsn_ie)
3391 offset += VS_IE_FIXED_HDR_LEN;
3392 else
3393 offset += WPA_IE_VERSION_LEN;
3394
3395 /* check for multicast cipher suite */
3396 if (offset + WPA_IE_MIN_OUI_LEN > len) {
3397 err = -EINVAL;
3398 brcmf_err("no multicast cipher suite\n");
3399 goto exit;
3400 }
3401
3402 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3403 err = -EINVAL;
3404 brcmf_err("ivalid OUI\n");
3405 goto exit;
3406 }
3407 offset += TLV_OUI_LEN;
3408
3409 /* pick up multicast cipher */
3410 switch (data[offset]) {
3411 case WPA_CIPHER_NONE:
3412 gval = 0;
3413 break;
3414 case WPA_CIPHER_WEP_40:
3415 case WPA_CIPHER_WEP_104:
3416 gval = WEP_ENABLED;
3417 break;
3418 case WPA_CIPHER_TKIP:
3419 gval = TKIP_ENABLED;
3420 break;
3421 case WPA_CIPHER_AES_CCM:
3422 gval = AES_ENABLED;
3423 break;
3424 default:
3425 err = -EINVAL;
3426 brcmf_err("Invalid multi cast cipher info\n");
3427 goto exit;
3428 }
3429
3430 offset++;
3431 /* walk thru unicast cipher list and pick up what we recognize */
3432 count = data[offset] + (data[offset + 1] << 8);
3433 offset += WPA_IE_SUITE_COUNT_LEN;
3434 /* Check for unicast suite(s) */
3435 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3436 err = -EINVAL;
3437 brcmf_err("no unicast cipher suite\n");
3438 goto exit;
3439 }
3440 for (i = 0; i < count; i++) {
3441 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3442 err = -EINVAL;
3443 brcmf_err("ivalid OUI\n");
3444 goto exit;
3445 }
3446 offset += TLV_OUI_LEN;
3447 switch (data[offset]) {
3448 case WPA_CIPHER_NONE:
3449 break;
3450 case WPA_CIPHER_WEP_40:
3451 case WPA_CIPHER_WEP_104:
3452 pval |= WEP_ENABLED;
3453 break;
3454 case WPA_CIPHER_TKIP:
3455 pval |= TKIP_ENABLED;
3456 break;
3457 case WPA_CIPHER_AES_CCM:
3458 pval |= AES_ENABLED;
3459 break;
3460 default:
3461 brcmf_err("Ivalid unicast security info\n");
3462 }
3463 offset++;
3464 }
3465 /* walk thru auth management suite list and pick up what we recognize */
3466 count = data[offset] + (data[offset + 1] << 8);
3467 offset += WPA_IE_SUITE_COUNT_LEN;
3468 /* Check for auth key management suite(s) */
3469 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3470 err = -EINVAL;
3471 brcmf_err("no auth key mgmt suite\n");
3472 goto exit;
3473 }
3474 for (i = 0; i < count; i++) {
3475 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3476 err = -EINVAL;
3477 brcmf_err("ivalid OUI\n");
3478 goto exit;
3479 }
3480 offset += TLV_OUI_LEN;
3481 switch (data[offset]) {
3482 case RSN_AKM_NONE:
3483 brcmf_dbg(TRACE, "RSN_AKM_NONE\n");
3484 wpa_auth |= WPA_AUTH_NONE;
3485 break;
3486 case RSN_AKM_UNSPECIFIED:
3487 brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n");
3488 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) :
3489 (wpa_auth |= WPA_AUTH_UNSPECIFIED);
3490 break;
3491 case RSN_AKM_PSK:
3492 brcmf_dbg(TRACE, "RSN_AKM_PSK\n");
3493 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) :
3494 (wpa_auth |= WPA_AUTH_PSK);
3495 break;
3496 default:
3497 brcmf_err("Ivalid key mgmt info\n");
3498 }
3499 offset++;
3500 }
3501
3502 if (is_rsn_ie) {
3503 wme_bss_disable = 1;
3504 if ((offset + RSN_CAP_LEN) <= len) {
3505 rsn_cap = data[offset] + (data[offset + 1] << 8);
3506 if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK)
3507 wme_bss_disable = 0;
3508 }
3509 /* set wme_bss_disable to sync RSN Capabilities */
3510 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable",
3511 wme_bss_disable);
3512 if (err < 0) {
3513 brcmf_err("wme_bss_disable error %d\n", err);
3514 goto exit;
3515 }
3516 }
3517 /* FOR WPS , set SES_OW_ENABLED */
3518 wsec = (pval | gval | SES_OW_ENABLED);
3519
3520 /* set auth */
3521 err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth);
3522 if (err < 0) {
3523 brcmf_err("auth error %d\n", err);
3524 goto exit;
3525 }
3526 /* set wsec */
3527 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
3528 if (err < 0) {
3529 brcmf_err("wsec error %d\n", err);
3530 goto exit;
3531 }
3532 /* set upper-layer auth */
3533 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth);
3534 if (err < 0) {
3535 brcmf_err("wpa_auth error %d\n", err);
3536 goto exit;
3537 }
3538
3539 exit:
3540 return err;
3541 }
3542
3543 static s32
3544 brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len,
3545 struct parsed_vndr_ies *vndr_ies)
3546 {
3547 struct brcmf_vs_tlv *vndrie;
3548 struct brcmf_tlv *ie;
3549 struct parsed_vndr_ie_info *parsed_info;
3550 s32 remaining_len;
3551
3552 remaining_len = (s32)vndr_ie_len;
3553 memset(vndr_ies, 0, sizeof(*vndr_ies));
3554
3555 ie = (struct brcmf_tlv *)vndr_ie_buf;
3556 while (ie) {
3557 if (ie->id != WLAN_EID_VENDOR_SPECIFIC)
3558 goto next;
3559 vndrie = (struct brcmf_vs_tlv *)ie;
3560 /* len should be bigger than OUI length + one */
3561 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) {
3562 brcmf_err("invalid vndr ie. length is too small %d\n",
3563 vndrie->len);
3564 goto next;
3565 }
3566 /* if wpa or wme ie, do not add ie */
3567 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) &&
3568 ((vndrie->oui_type == WPA_OUI_TYPE) ||
3569 (vndrie->oui_type == WME_OUI_TYPE))) {
3570 brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n");
3571 goto next;
3572 }
3573
3574 parsed_info = &vndr_ies->ie_info[vndr_ies->count];
3575
3576 /* save vndr ie information */
3577 parsed_info->ie_ptr = (char *)vndrie;
3578 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN;
3579 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie));
3580
3581 vndr_ies->count++;
3582
3583 brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n",
3584 parsed_info->vndrie.oui[0],
3585 parsed_info->vndrie.oui[1],
3586 parsed_info->vndrie.oui[2],
3587 parsed_info->vndrie.oui_type);
3588
3589 if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT)
3590 break;
3591 next:
3592 remaining_len -= (ie->len + TLV_HDR_LEN);
3593 if (remaining_len <= TLV_HDR_LEN)
3594 ie = NULL;
3595 else
3596 ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len +
3597 TLV_HDR_LEN);
3598 }
3599 return 0;
3600 }
3601
3602 static u32
3603 brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd)
3604 {
3605
3606 __le32 iecount_le;
3607 __le32 pktflag_le;
3608
3609 strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1);
3610 iebuf[VNDR_IE_CMD_LEN - 1] = '\0';
3611
3612 iecount_le = cpu_to_le32(1);
3613 memcpy(&iebuf[VNDR_IE_COUNT_OFFSET], &iecount_le, sizeof(iecount_le));
3614
3615 pktflag_le = cpu_to_le32(pktflag);
3616 memcpy(&iebuf[VNDR_IE_PKTFLAG_OFFSET], &pktflag_le, sizeof(pktflag_le));
3617
3618 memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len);
3619
3620 return ie_len + VNDR_IE_HDR_SIZE;
3621 }
3622
3623 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
3624 const u8 *vndr_ie_buf, u32 vndr_ie_len)
3625 {
3626 struct brcmf_if *ifp;
3627 struct vif_saved_ie *saved_ie;
3628 s32 err = 0;
3629 u8 *iovar_ie_buf;
3630 u8 *curr_ie_buf;
3631 u8 *mgmt_ie_buf = NULL;
3632 int mgmt_ie_buf_len;
3633 u32 *mgmt_ie_len;
3634 u32 del_add_ie_buf_len = 0;
3635 u32 total_ie_buf_len = 0;
3636 u32 parsed_ie_buf_len = 0;
3637 struct parsed_vndr_ies old_vndr_ies;
3638 struct parsed_vndr_ies new_vndr_ies;
3639 struct parsed_vndr_ie_info *vndrie_info;
3640 s32 i;
3641 u8 *ptr;
3642 int remained_buf_len;
3643
3644 if (!vif)
3645 return -ENODEV;
3646 ifp = vif->ifp;
3647 saved_ie = &vif->saved_ie;
3648
3649 brcmf_dbg(TRACE, "bssidx %d, pktflag : 0x%02X\n", ifp->bssidx, pktflag);
3650 iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
3651 if (!iovar_ie_buf)
3652 return -ENOMEM;
3653 curr_ie_buf = iovar_ie_buf;
3654 switch (pktflag) {
3655 case BRCMF_VNDR_IE_PRBREQ_FLAG:
3656 mgmt_ie_buf = saved_ie->probe_req_ie;
3657 mgmt_ie_len = &saved_ie->probe_req_ie_len;
3658 mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie);
3659 break;
3660 case BRCMF_VNDR_IE_PRBRSP_FLAG:
3661 mgmt_ie_buf = saved_ie->probe_res_ie;
3662 mgmt_ie_len = &saved_ie->probe_res_ie_len;
3663 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie);
3664 break;
3665 case BRCMF_VNDR_IE_BEACON_FLAG:
3666 mgmt_ie_buf = saved_ie->beacon_ie;
3667 mgmt_ie_len = &saved_ie->beacon_ie_len;
3668 mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie);
3669 break;
3670 case BRCMF_VNDR_IE_ASSOCREQ_FLAG:
3671 mgmt_ie_buf = saved_ie->assoc_req_ie;
3672 mgmt_ie_len = &saved_ie->assoc_req_ie_len;
3673 mgmt_ie_buf_len = sizeof(saved_ie->assoc_req_ie);
3674 break;
3675 default:
3676 err = -EPERM;
3677 brcmf_err("not suitable type\n");
3678 goto exit;
3679 }
3680
3681 if (vndr_ie_len > mgmt_ie_buf_len) {
3682 err = -ENOMEM;
3683 brcmf_err("extra IE size too big\n");
3684 goto exit;
3685 }
3686
3687 /* parse and save new vndr_ie in curr_ie_buff before comparing it */
3688 if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) {
3689 ptr = curr_ie_buf;
3690 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies);
3691 for (i = 0; i < new_vndr_ies.count; i++) {
3692 vndrie_info = &new_vndr_ies.ie_info[i];
3693 memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr,
3694 vndrie_info->ie_len);
3695 parsed_ie_buf_len += vndrie_info->ie_len;
3696 }
3697 }
3698
3699 if (mgmt_ie_buf && *mgmt_ie_len) {
3700 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) &&
3701 (memcmp(mgmt_ie_buf, curr_ie_buf,
3702 parsed_ie_buf_len) == 0)) {
3703 brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n");
3704 goto exit;
3705 }
3706
3707 /* parse old vndr_ie */
3708 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies);
3709
3710 /* make a command to delete old ie */
3711 for (i = 0; i < old_vndr_ies.count; i++) {
3712 vndrie_info = &old_vndr_ies.ie_info[i];
3713
3714 brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n",
3715 vndrie_info->vndrie.id,
3716 vndrie_info->vndrie.len,
3717 vndrie_info->vndrie.oui[0],
3718 vndrie_info->vndrie.oui[1],
3719 vndrie_info->vndrie.oui[2]);
3720
3721 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3722 vndrie_info->ie_ptr,
3723 vndrie_info->ie_len,
3724 "del");
3725 curr_ie_buf += del_add_ie_buf_len;
3726 total_ie_buf_len += del_add_ie_buf_len;
3727 }
3728 }
3729
3730 *mgmt_ie_len = 0;
3731 /* Add if there is any extra IE */
3732 if (mgmt_ie_buf && parsed_ie_buf_len) {
3733 ptr = mgmt_ie_buf;
3734
3735 remained_buf_len = mgmt_ie_buf_len;
3736
3737 /* make a command to add new ie */
3738 for (i = 0; i < new_vndr_ies.count; i++) {
3739 vndrie_info = &new_vndr_ies.ie_info[i];
3740
3741 /* verify remained buf size before copy data */
3742 if (remained_buf_len < (vndrie_info->vndrie.len +
3743 VNDR_IE_VSIE_OFFSET)) {
3744 brcmf_err("no space in mgmt_ie_buf: len left %d",
3745 remained_buf_len);
3746 break;
3747 }
3748 remained_buf_len -= (vndrie_info->ie_len +
3749 VNDR_IE_VSIE_OFFSET);
3750
3751 brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n",
3752 vndrie_info->vndrie.id,
3753 vndrie_info->vndrie.len,
3754 vndrie_info->vndrie.oui[0],
3755 vndrie_info->vndrie.oui[1],
3756 vndrie_info->vndrie.oui[2]);
3757
3758 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3759 vndrie_info->ie_ptr,
3760 vndrie_info->ie_len,
3761 "add");
3762
3763 /* save the parsed IE in wl struct */
3764 memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr,
3765 vndrie_info->ie_len);
3766 *mgmt_ie_len += vndrie_info->ie_len;
3767
3768 curr_ie_buf += del_add_ie_buf_len;
3769 total_ie_buf_len += del_add_ie_buf_len;
3770 }
3771 }
3772 if (total_ie_buf_len) {
3773 err = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf,
3774 total_ie_buf_len);
3775 if (err)
3776 brcmf_err("vndr ie set error : %d\n", err);
3777 }
3778
3779 exit:
3780 kfree(iovar_ie_buf);
3781 return err;
3782 }
3783
3784 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif)
3785 {
3786 s32 pktflags[] = {
3787 BRCMF_VNDR_IE_PRBREQ_FLAG,
3788 BRCMF_VNDR_IE_PRBRSP_FLAG,
3789 BRCMF_VNDR_IE_BEACON_FLAG
3790 };
3791 int i;
3792
3793 for (i = 0; i < ARRAY_SIZE(pktflags); i++)
3794 brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0);
3795
3796 memset(&vif->saved_ie, 0, sizeof(vif->saved_ie));
3797 return 0;
3798 }
3799
3800 static s32
3801 brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif,
3802 struct cfg80211_beacon_data *beacon)
3803 {
3804 s32 err;
3805
3806 /* Set Beacon IEs to FW */
3807 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG,
3808 beacon->tail, beacon->tail_len);
3809 if (err) {
3810 brcmf_err("Set Beacon IE Failed\n");
3811 return err;
3812 }
3813 brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n");
3814
3815 /* Set Probe Response IEs to FW */
3816 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG,
3817 beacon->proberesp_ies,
3818 beacon->proberesp_ies_len);
3819 if (err)
3820 brcmf_err("Set Probe Resp IE Failed\n");
3821 else
3822 brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n");
3823
3824 return err;
3825 }
3826
3827 static s32
3828 brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
3829 struct cfg80211_ap_settings *settings)
3830 {
3831 s32 ie_offset;
3832 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3833 struct brcmf_if *ifp = netdev_priv(ndev);
3834 const struct brcmf_tlv *ssid_ie;
3835 struct brcmf_ssid_le ssid_le;
3836 s32 err = -EPERM;
3837 const struct brcmf_tlv *rsn_ie;
3838 const struct brcmf_vs_tlv *wpa_ie;
3839 struct brcmf_join_params join_params;
3840 enum nl80211_iftype dev_role;
3841 struct brcmf_fil_bss_enable_le bss_enable;
3842 u16 chanspec;
3843
3844 brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n",
3845 settings->chandef.chan->hw_value,
3846 settings->chandef.center_freq1, settings->chandef.width,
3847 settings->beacon_interval, settings->dtim_period);
3848 brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n",
3849 settings->ssid, settings->ssid_len, settings->auth_type,
3850 settings->inactivity_timeout);
3851
3852 dev_role = ifp->vif->wdev.iftype;
3853
3854 memset(&ssid_le, 0, sizeof(ssid_le));
3855 if (settings->ssid == NULL || settings->ssid_len == 0) {
3856 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN;
3857 ssid_ie = brcmf_parse_tlvs(
3858 (u8 *)&settings->beacon.head[ie_offset],
3859 settings->beacon.head_len - ie_offset,
3860 WLAN_EID_SSID);
3861 if (!ssid_ie)
3862 return -EINVAL;
3863
3864 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len);
3865 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len);
3866 brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID);
3867 } else {
3868 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len);
3869 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
3870 }
3871
3872 brcmf_set_mpc(ifp, 0);
3873 brcmf_configure_arp_offload(ifp, false);
3874
3875 /* find the RSN_IE */
3876 rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
3877 settings->beacon.tail_len, WLAN_EID_RSN);
3878
3879 /* find the WPA_IE */
3880 wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail,
3881 settings->beacon.tail_len);
3882
3883 if ((wpa_ie != NULL || rsn_ie != NULL)) {
3884 brcmf_dbg(TRACE, "WPA(2) IE is found\n");
3885 if (wpa_ie != NULL) {
3886 /* WPA IE */
3887 err = brcmf_configure_wpaie(ndev, wpa_ie, false);
3888 if (err < 0)
3889 goto exit;
3890 } else {
3891 /* RSN IE */
3892 err = brcmf_configure_wpaie(ndev,
3893 (struct brcmf_vs_tlv *)rsn_ie, true);
3894 if (err < 0)
3895 goto exit;
3896 }
3897 } else {
3898 brcmf_dbg(TRACE, "No WPA(2) IEs found\n");
3899 brcmf_configure_opensecurity(ifp);
3900 }
3901
3902 brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon);
3903
3904 chanspec = chandef_to_chanspec(&cfg->d11inf, &settings->chandef);
3905 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
3906 if (err < 0) {
3907 brcmf_err("Set Channel failed: chspec=%d, %d\n", chanspec, err);
3908 goto exit;
3909 }
3910
3911 if (settings->beacon_interval) {
3912 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
3913 settings->beacon_interval);
3914 if (err < 0) {
3915 brcmf_err("Beacon Interval Set Error, %d\n", err);
3916 goto exit;
3917 }
3918 }
3919 if (settings->dtim_period) {
3920 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD,
3921 settings->dtim_period);
3922 if (err < 0) {
3923 brcmf_err("DTIM Interval Set Error, %d\n", err);
3924 goto exit;
3925 }
3926 }
3927
3928 if (dev_role == NL80211_IFTYPE_AP) {
3929 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
3930 if (err < 0) {
3931 brcmf_err("BRCMF_C_DOWN error %d\n", err);
3932 goto exit;
3933 }
3934 brcmf_fil_iovar_int_set(ifp, "apsta", 0);
3935 }
3936
3937 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
3938 if (err < 0) {
3939 brcmf_err("SET INFRA error %d\n", err);
3940 goto exit;
3941 }
3942 if (dev_role == NL80211_IFTYPE_AP) {
3943 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
3944 if (err < 0) {
3945 brcmf_err("setting AP mode failed %d\n", err);
3946 goto exit;
3947 }
3948 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
3949 if (err < 0) {
3950 brcmf_err("BRCMF_C_UP error (%d)\n", err);
3951 goto exit;
3952 }
3953
3954 memset(&join_params, 0, sizeof(join_params));
3955 /* join parameters starts with ssid */
3956 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
3957 /* create softap */
3958 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
3959 &join_params, sizeof(join_params));
3960 if (err < 0) {
3961 brcmf_err("SET SSID error (%d)\n", err);
3962 goto exit;
3963 }
3964 brcmf_dbg(TRACE, "AP mode configuration complete\n");
3965 } else {
3966 err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le,
3967 sizeof(ssid_le));
3968 if (err < 0) {
3969 brcmf_err("setting ssid failed %d\n", err);
3970 goto exit;
3971 }
3972 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
3973 bss_enable.enable = cpu_to_le32(1);
3974 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
3975 sizeof(bss_enable));
3976 if (err < 0) {
3977 brcmf_err("bss_enable config failed %d\n", err);
3978 goto exit;
3979 }
3980
3981 brcmf_dbg(TRACE, "GO mode configuration complete\n");
3982 }
3983 clear_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
3984 set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
3985
3986 exit:
3987 if (err) {
3988 brcmf_set_mpc(ifp, 1);
3989 brcmf_configure_arp_offload(ifp, true);
3990 }
3991 return err;
3992 }
3993
3994 static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
3995 {
3996 struct brcmf_if *ifp = netdev_priv(ndev);
3997 s32 err;
3998 struct brcmf_fil_bss_enable_le bss_enable;
3999 struct brcmf_join_params join_params;
4000
4001 brcmf_dbg(TRACE, "Enter\n");
4002
4003 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_AP) {
4004 /* Due to most likely deauths outstanding we sleep */
4005 /* first to make sure they get processed by fw. */
4006 msleep(400);
4007
4008 memset(&join_params, 0, sizeof(join_params));
4009 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
4010 &join_params, sizeof(join_params));
4011 if (err < 0)
4012 brcmf_err("SET SSID error (%d)\n", err);
4013 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
4014 if (err < 0)
4015 brcmf_err("BRCMF_C_UP error %d\n", err);
4016 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0);
4017 if (err < 0)
4018 brcmf_err("setting AP mode failed %d\n", err);
4019 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0);
4020 if (err < 0)
4021 brcmf_err("setting INFRA mode failed %d\n", err);
4022 } else {
4023 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
4024 bss_enable.enable = cpu_to_le32(0);
4025 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
4026 sizeof(bss_enable));
4027 if (err < 0)
4028 brcmf_err("bss_enable config failed %d\n", err);
4029 }
4030 brcmf_set_mpc(ifp, 1);
4031 brcmf_configure_arp_offload(ifp, true);
4032 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
4033 clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
4034
4035 return err;
4036 }
4037
4038 static s32
4039 brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev,
4040 struct cfg80211_beacon_data *info)
4041 {
4042 struct brcmf_if *ifp = netdev_priv(ndev);
4043 s32 err;
4044
4045 brcmf_dbg(TRACE, "Enter\n");
4046
4047 err = brcmf_config_ap_mgmt_ie(ifp->vif, info);
4048
4049 return err;
4050 }
4051
4052 static int
4053 brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev,
4054 struct station_del_parameters *params)
4055 {
4056 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4057 struct brcmf_scb_val_le scbval;
4058 struct brcmf_if *ifp = netdev_priv(ndev);
4059 s32 err;
4060
4061 if (!params->mac)
4062 return -EFAULT;
4063
4064 brcmf_dbg(TRACE, "Enter %pM\n", params->mac);
4065
4066 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
4067 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
4068 if (!check_vif_up(ifp->vif))
4069 return -EIO;
4070
4071 memcpy(&scbval.ea, params->mac, ETH_ALEN);
4072 scbval.val = cpu_to_le32(WLAN_REASON_DEAUTH_LEAVING);
4073 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON,
4074 &scbval, sizeof(scbval));
4075 if (err)
4076 brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err);
4077
4078 brcmf_dbg(TRACE, "Exit\n");
4079 return err;
4080 }
4081
4082
4083 static void
4084 brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
4085 struct wireless_dev *wdev,
4086 u16 frame_type, bool reg)
4087 {
4088 struct brcmf_cfg80211_vif *vif;
4089 u16 mgmt_type;
4090
4091 brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg);
4092
4093 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
4094 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4095 if (reg)
4096 vif->mgmt_rx_reg |= BIT(mgmt_type);
4097 else
4098 vif->mgmt_rx_reg &= ~BIT(mgmt_type);
4099 }
4100
4101
4102 static int
4103 brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
4104 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
4105 {
4106 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4107 struct ieee80211_channel *chan = params->chan;
4108 const u8 *buf = params->buf;
4109 size_t len = params->len;
4110 const struct ieee80211_mgmt *mgmt;
4111 struct brcmf_cfg80211_vif *vif;
4112 s32 err = 0;
4113 s32 ie_offset;
4114 s32 ie_len;
4115 struct brcmf_fil_action_frame_le *action_frame;
4116 struct brcmf_fil_af_params_le *af_params;
4117 bool ack;
4118 s32 chan_nr;
4119 u32 freq;
4120
4121 brcmf_dbg(TRACE, "Enter\n");
4122
4123 *cookie = 0;
4124
4125 mgmt = (const struct ieee80211_mgmt *)buf;
4126
4127 if (!ieee80211_is_mgmt(mgmt->frame_control)) {
4128 brcmf_err("Driver only allows MGMT packet type\n");
4129 return -EPERM;
4130 }
4131
4132 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4133
4134 if (ieee80211_is_probe_resp(mgmt->frame_control)) {
4135 /* Right now the only reason to get a probe response */
4136 /* is for p2p listen response or for p2p GO from */
4137 /* wpa_supplicant. Unfortunately the probe is send */
4138 /* on primary ndev, while dongle wants it on the p2p */
4139 /* vif. Since this is only reason for a probe */
4140 /* response to be sent, the vif is taken from cfg. */
4141 /* If ever desired to send proberesp for non p2p */
4142 /* response then data should be checked for */
4143 /* "DIRECT-". Note in future supplicant will take */
4144 /* dedicated p2p wdev to do this and then this 'hack'*/
4145 /* is not needed anymore. */
4146 ie_offset = DOT11_MGMT_HDR_LEN +
4147 DOT11_BCN_PRB_FIXED_LEN;
4148 ie_len = len - ie_offset;
4149 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif)
4150 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4151 err = brcmf_vif_set_mgmt_ie(vif,
4152 BRCMF_VNDR_IE_PRBRSP_FLAG,
4153 &buf[ie_offset],
4154 ie_len);
4155 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
4156 GFP_KERNEL);
4157 } else if (ieee80211_is_action(mgmt->frame_control)) {
4158 af_params = kzalloc(sizeof(*af_params), GFP_KERNEL);
4159 if (af_params == NULL) {
4160 brcmf_err("unable to allocate frame\n");
4161 err = -ENOMEM;
4162 goto exit;
4163 }
4164 action_frame = &af_params->action_frame;
4165 /* Add the packet Id */
4166 action_frame->packet_id = cpu_to_le32(*cookie);
4167 /* Add BSSID */
4168 memcpy(&action_frame->da[0], &mgmt->da[0], ETH_ALEN);
4169 memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN);
4170 /* Add the length exepted for 802.11 header */
4171 action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN);
4172 /* Add the channel. Use the one specified as parameter if any or
4173 * the current one (got from the firmware) otherwise
4174 */
4175 if (chan)
4176 freq = chan->center_freq;
4177 else
4178 brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL,
4179 &freq);
4180 chan_nr = ieee80211_frequency_to_channel(freq);
4181 af_params->channel = cpu_to_le32(chan_nr);
4182
4183 memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN],
4184 le16_to_cpu(action_frame->len));
4185
4186 brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n",
4187 *cookie, le16_to_cpu(action_frame->len), freq);
4188
4189 ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg),
4190 af_params);
4191
4192 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack,
4193 GFP_KERNEL);
4194 kfree(af_params);
4195 } else {
4196 brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control);
4197 brcmf_dbg_hex_dump(true, buf, len, "payload, len=%Zu\n", len);
4198 }
4199
4200 exit:
4201 return err;
4202 }
4203
4204
4205 static int
4206 brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
4207 struct wireless_dev *wdev,
4208 u64 cookie)
4209 {
4210 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4211 struct brcmf_cfg80211_vif *vif;
4212 int err = 0;
4213
4214 brcmf_dbg(TRACE, "Enter p2p listen cancel\n");
4215
4216 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4217 if (vif == NULL) {
4218 brcmf_err("No p2p device available for probe response\n");
4219 err = -ENODEV;
4220 goto exit;
4221 }
4222 brcmf_p2p_cancel_remain_on_channel(vif->ifp);
4223 exit:
4224 return err;
4225 }
4226
4227 static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy,
4228 struct wireless_dev *wdev,
4229 enum nl80211_crit_proto_id proto,
4230 u16 duration)
4231 {
4232 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4233 struct brcmf_cfg80211_vif *vif;
4234
4235 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4236
4237 /* only DHCP support for now */
4238 if (proto != NL80211_CRIT_PROTO_DHCP)
4239 return -EINVAL;
4240
4241 /* suppress and abort scanning */
4242 set_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4243 brcmf_abort_scanning(cfg);
4244
4245 return brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_DISABLED, duration);
4246 }
4247
4248 static void brcmf_cfg80211_crit_proto_stop(struct wiphy *wiphy,
4249 struct wireless_dev *wdev)
4250 {
4251 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4252 struct brcmf_cfg80211_vif *vif;
4253
4254 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4255
4256 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
4257 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4258 }
4259
4260 static s32
4261 brcmf_notify_tdls_peer_event(struct brcmf_if *ifp,
4262 const struct brcmf_event_msg *e, void *data)
4263 {
4264 switch (e->reason) {
4265 case BRCMF_E_REASON_TDLS_PEER_DISCOVERED:
4266 brcmf_dbg(TRACE, "TDLS Peer Discovered\n");
4267 break;
4268 case BRCMF_E_REASON_TDLS_PEER_CONNECTED:
4269 brcmf_dbg(TRACE, "TDLS Peer Connected\n");
4270 brcmf_proto_add_tdls_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4271 break;
4272 case BRCMF_E_REASON_TDLS_PEER_DISCONNECTED:
4273 brcmf_dbg(TRACE, "TDLS Peer Disconnected\n");
4274 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4275 break;
4276 }
4277
4278 return 0;
4279 }
4280
4281 static int brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper)
4282 {
4283 int ret;
4284
4285 switch (oper) {
4286 case NL80211_TDLS_DISCOVERY_REQ:
4287 ret = BRCMF_TDLS_MANUAL_EP_DISCOVERY;
4288 break;
4289 case NL80211_TDLS_SETUP:
4290 ret = BRCMF_TDLS_MANUAL_EP_CREATE;
4291 break;
4292 case NL80211_TDLS_TEARDOWN:
4293 ret = BRCMF_TDLS_MANUAL_EP_DELETE;
4294 break;
4295 default:
4296 brcmf_err("unsupported operation: %d\n", oper);
4297 ret = -EOPNOTSUPP;
4298 }
4299 return ret;
4300 }
4301
4302 static int brcmf_cfg80211_tdls_oper(struct wiphy *wiphy,
4303 struct net_device *ndev, const u8 *peer,
4304 enum nl80211_tdls_operation oper)
4305 {
4306 struct brcmf_if *ifp;
4307 struct brcmf_tdls_iovar_le info;
4308 int ret = 0;
4309
4310 ret = brcmf_convert_nl80211_tdls_oper(oper);
4311 if (ret < 0)
4312 return ret;
4313
4314 ifp = netdev_priv(ndev);
4315 memset(&info, 0, sizeof(info));
4316 info.mode = (u8)ret;
4317 if (peer)
4318 memcpy(info.ea, peer, ETH_ALEN);
4319
4320 ret = brcmf_fil_iovar_data_set(ifp, "tdls_endpoint",
4321 &info, sizeof(info));
4322 if (ret < 0)
4323 brcmf_err("tdls_endpoint iovar failed: ret=%d\n", ret);
4324
4325 return ret;
4326 }
4327
4328 static struct cfg80211_ops wl_cfg80211_ops = {
4329 .add_virtual_intf = brcmf_cfg80211_add_iface,
4330 .del_virtual_intf = brcmf_cfg80211_del_iface,
4331 .change_virtual_intf = brcmf_cfg80211_change_iface,
4332 .scan = brcmf_cfg80211_scan,
4333 .set_wiphy_params = brcmf_cfg80211_set_wiphy_params,
4334 .join_ibss = brcmf_cfg80211_join_ibss,
4335 .leave_ibss = brcmf_cfg80211_leave_ibss,
4336 .get_station = brcmf_cfg80211_get_station,
4337 .set_tx_power = brcmf_cfg80211_set_tx_power,
4338 .get_tx_power = brcmf_cfg80211_get_tx_power,
4339 .add_key = brcmf_cfg80211_add_key,
4340 .del_key = brcmf_cfg80211_del_key,
4341 .get_key = brcmf_cfg80211_get_key,
4342 .set_default_key = brcmf_cfg80211_config_default_key,
4343 .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key,
4344 .set_power_mgmt = brcmf_cfg80211_set_power_mgmt,
4345 .connect = brcmf_cfg80211_connect,
4346 .disconnect = brcmf_cfg80211_disconnect,
4347 .suspend = brcmf_cfg80211_suspend,
4348 .resume = brcmf_cfg80211_resume,
4349 .set_pmksa = brcmf_cfg80211_set_pmksa,
4350 .del_pmksa = brcmf_cfg80211_del_pmksa,
4351 .flush_pmksa = brcmf_cfg80211_flush_pmksa,
4352 .start_ap = brcmf_cfg80211_start_ap,
4353 .stop_ap = brcmf_cfg80211_stop_ap,
4354 .change_beacon = brcmf_cfg80211_change_beacon,
4355 .del_station = brcmf_cfg80211_del_station,
4356 .sched_scan_start = brcmf_cfg80211_sched_scan_start,
4357 .sched_scan_stop = brcmf_cfg80211_sched_scan_stop,
4358 .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register,
4359 .mgmt_tx = brcmf_cfg80211_mgmt_tx,
4360 .remain_on_channel = brcmf_p2p_remain_on_channel,
4361 .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel,
4362 .start_p2p_device = brcmf_p2p_start_device,
4363 .stop_p2p_device = brcmf_p2p_stop_device,
4364 .crit_proto_start = brcmf_cfg80211_crit_proto_start,
4365 .crit_proto_stop = brcmf_cfg80211_crit_proto_stop,
4366 .tdls_oper = brcmf_cfg80211_tdls_oper,
4367 };
4368
4369 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
4370 enum nl80211_iftype type,
4371 bool pm_block)
4372 {
4373 struct brcmf_cfg80211_vif *vif;
4374
4375 brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n",
4376 sizeof(*vif));
4377 vif = kzalloc(sizeof(*vif), GFP_KERNEL);
4378 if (!vif)
4379 return ERR_PTR(-ENOMEM);
4380
4381 vif->wdev.wiphy = cfg->wiphy;
4382 vif->wdev.iftype = type;
4383
4384 vif->pm_block = pm_block;
4385 vif->roam_off = -1;
4386
4387 brcmf_init_prof(&vif->profile);
4388
4389 list_add_tail(&vif->list, &cfg->vif_list);
4390 return vif;
4391 }
4392
4393 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif)
4394 {
4395 list_del(&vif->list);
4396 kfree(vif);
4397 }
4398
4399 void brcmf_cfg80211_free_netdev(struct net_device *ndev)
4400 {
4401 struct brcmf_cfg80211_vif *vif;
4402 struct brcmf_if *ifp;
4403
4404 ifp = netdev_priv(ndev);
4405 vif = ifp->vif;
4406
4407 brcmf_free_vif(vif);
4408 free_netdev(ndev);
4409 }
4410
4411 static bool brcmf_is_linkup(const struct brcmf_event_msg *e)
4412 {
4413 u32 event = e->event_code;
4414 u32 status = e->status;
4415
4416 if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) {
4417 brcmf_dbg(CONN, "Processing set ssid\n");
4418 return true;
4419 }
4420
4421 return false;
4422 }
4423
4424 static bool brcmf_is_linkdown(const struct brcmf_event_msg *e)
4425 {
4426 u32 event = e->event_code;
4427 u16 flags = e->flags;
4428
4429 if ((event == BRCMF_E_DEAUTH) || (event == BRCMF_E_DEAUTH_IND) ||
4430 (event == BRCMF_E_DISASSOC_IND) ||
4431 ((event == BRCMF_E_LINK) && (!(flags & BRCMF_EVENT_MSG_LINK)))) {
4432 brcmf_dbg(CONN, "Processing link down\n");
4433 return true;
4434 }
4435 return false;
4436 }
4437
4438 static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg,
4439 const struct brcmf_event_msg *e)
4440 {
4441 u32 event = e->event_code;
4442 u32 status = e->status;
4443
4444 if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) {
4445 brcmf_dbg(CONN, "Processing Link %s & no network found\n",
4446 e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down");
4447 return true;
4448 }
4449
4450 if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) {
4451 brcmf_dbg(CONN, "Processing connecting & no network found\n");
4452 return true;
4453 }
4454
4455 return false;
4456 }
4457
4458 static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg)
4459 {
4460 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4461
4462 kfree(conn_info->req_ie);
4463 conn_info->req_ie = NULL;
4464 conn_info->req_ie_len = 0;
4465 kfree(conn_info->resp_ie);
4466 conn_info->resp_ie = NULL;
4467 conn_info->resp_ie_len = 0;
4468 }
4469
4470 static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg,
4471 struct brcmf_if *ifp)
4472 {
4473 struct brcmf_cfg80211_assoc_ielen_le *assoc_info;
4474 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4475 u32 req_len;
4476 u32 resp_len;
4477 s32 err = 0;
4478
4479 brcmf_clear_assoc_ies(cfg);
4480
4481 err = brcmf_fil_iovar_data_get(ifp, "assoc_info",
4482 cfg->extra_buf, WL_ASSOC_INFO_MAX);
4483 if (err) {
4484 brcmf_err("could not get assoc info (%d)\n", err);
4485 return err;
4486 }
4487 assoc_info =
4488 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf;
4489 req_len = le32_to_cpu(assoc_info->req_len);
4490 resp_len = le32_to_cpu(assoc_info->resp_len);
4491 if (req_len) {
4492 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies",
4493 cfg->extra_buf,
4494 WL_ASSOC_INFO_MAX);
4495 if (err) {
4496 brcmf_err("could not get assoc req (%d)\n", err);
4497 return err;
4498 }
4499 conn_info->req_ie_len = req_len;
4500 conn_info->req_ie =
4501 kmemdup(cfg->extra_buf, conn_info->req_ie_len,
4502 GFP_KERNEL);
4503 } else {
4504 conn_info->req_ie_len = 0;
4505 conn_info->req_ie = NULL;
4506 }
4507 if (resp_len) {
4508 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies",
4509 cfg->extra_buf,
4510 WL_ASSOC_INFO_MAX);
4511 if (err) {
4512 brcmf_err("could not get assoc resp (%d)\n", err);
4513 return err;
4514 }
4515 conn_info->resp_ie_len = resp_len;
4516 conn_info->resp_ie =
4517 kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
4518 GFP_KERNEL);
4519 } else {
4520 conn_info->resp_ie_len = 0;
4521 conn_info->resp_ie = NULL;
4522 }
4523 brcmf_dbg(CONN, "req len (%d) resp len (%d)\n",
4524 conn_info->req_ie_len, conn_info->resp_ie_len);
4525
4526 return err;
4527 }
4528
4529 static s32
4530 brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg,
4531 struct net_device *ndev,
4532 const struct brcmf_event_msg *e)
4533 {
4534 struct brcmf_if *ifp = netdev_priv(ndev);
4535 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4536 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4537 struct wiphy *wiphy = cfg_to_wiphy(cfg);
4538 struct ieee80211_channel *notify_channel = NULL;
4539 struct ieee80211_supported_band *band;
4540 struct brcmf_bss_info_le *bi;
4541 struct brcmu_chan ch;
4542 u32 freq;
4543 s32 err = 0;
4544 u8 *buf;
4545
4546 brcmf_dbg(TRACE, "Enter\n");
4547
4548 brcmf_get_assoc_ies(cfg, ifp);
4549 memcpy(profile->bssid, e->addr, ETH_ALEN);
4550 brcmf_update_bss_info(cfg, ifp);
4551
4552 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
4553 if (buf == NULL) {
4554 err = -ENOMEM;
4555 goto done;
4556 }
4557
4558 /* data sent to dongle has to be little endian */
4559 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
4560 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
4561 buf, WL_BSS_INFO_MAX);
4562
4563 if (err)
4564 goto done;
4565
4566 bi = (struct brcmf_bss_info_le *)(buf + 4);
4567 ch.chspec = le16_to_cpu(bi->chanspec);
4568 cfg->d11inf.decchspec(&ch);
4569
4570 if (ch.band == BRCMU_CHAN_BAND_2G)
4571 band = wiphy->bands[IEEE80211_BAND_2GHZ];
4572 else
4573 band = wiphy->bands[IEEE80211_BAND_5GHZ];
4574
4575 freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
4576 notify_channel = ieee80211_get_channel(wiphy, freq);
4577
4578 done:
4579 kfree(buf);
4580 cfg80211_roamed(ndev, notify_channel, (u8 *)profile->bssid,
4581 conn_info->req_ie, conn_info->req_ie_len,
4582 conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL);
4583 brcmf_dbg(CONN, "Report roaming result\n");
4584
4585 set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
4586 brcmf_dbg(TRACE, "Exit\n");
4587 return err;
4588 }
4589
4590 static s32
4591 brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
4592 struct net_device *ndev, const struct brcmf_event_msg *e,
4593 bool completed)
4594 {
4595 struct brcmf_if *ifp = netdev_priv(ndev);
4596 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4597 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4598
4599 brcmf_dbg(TRACE, "Enter\n");
4600
4601 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4602 &ifp->vif->sme_state)) {
4603 if (completed) {
4604 brcmf_get_assoc_ies(cfg, ifp);
4605 memcpy(profile->bssid, e->addr, ETH_ALEN);
4606 brcmf_update_bss_info(cfg, ifp);
4607 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4608 &ifp->vif->sme_state);
4609 }
4610 cfg80211_connect_result(ndev,
4611 (u8 *)profile->bssid,
4612 conn_info->req_ie,
4613 conn_info->req_ie_len,
4614 conn_info->resp_ie,
4615 conn_info->resp_ie_len,
4616 completed ? WLAN_STATUS_SUCCESS :
4617 WLAN_STATUS_AUTH_TIMEOUT,
4618 GFP_KERNEL);
4619 brcmf_dbg(CONN, "Report connect result - connection %s\n",
4620 completed ? "succeeded" : "failed");
4621 }
4622 brcmf_dbg(TRACE, "Exit\n");
4623 return 0;
4624 }
4625
4626 static s32
4627 brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg,
4628 struct net_device *ndev,
4629 const struct brcmf_event_msg *e, void *data)
4630 {
4631 static int generation;
4632 u32 event = e->event_code;
4633 u32 reason = e->reason;
4634 struct station_info sinfo;
4635
4636 brcmf_dbg(CONN, "event %d, reason %d\n", event, reason);
4637 if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS &&
4638 ndev != cfg_to_ndev(cfg)) {
4639 brcmf_dbg(CONN, "AP mode link down\n");
4640 complete(&cfg->vif_disabled);
4641 return 0;
4642 }
4643
4644 if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) &&
4645 (reason == BRCMF_E_STATUS_SUCCESS)) {
4646 memset(&sinfo, 0, sizeof(sinfo));
4647 sinfo.filled = STATION_INFO_ASSOC_REQ_IES;
4648 if (!data) {
4649 brcmf_err("No IEs present in ASSOC/REASSOC_IND");
4650 return -EINVAL;
4651 }
4652 sinfo.assoc_req_ies = data;
4653 sinfo.assoc_req_ies_len = e->datalen;
4654 generation++;
4655 sinfo.generation = generation;
4656 cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_KERNEL);
4657 } else if ((event == BRCMF_E_DISASSOC_IND) ||
4658 (event == BRCMF_E_DEAUTH_IND) ||
4659 (event == BRCMF_E_DEAUTH)) {
4660 cfg80211_del_sta(ndev, e->addr, GFP_KERNEL);
4661 }
4662 return 0;
4663 }
4664
4665 static s32
4666 brcmf_notify_connect_status(struct brcmf_if *ifp,
4667 const struct brcmf_event_msg *e, void *data)
4668 {
4669 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4670 struct net_device *ndev = ifp->ndev;
4671 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4672 struct ieee80211_channel *chan;
4673 s32 err = 0;
4674
4675 if ((e->event_code == BRCMF_E_DEAUTH) ||
4676 (e->event_code == BRCMF_E_DEAUTH_IND) ||
4677 (e->event_code == BRCMF_E_DISASSOC_IND) ||
4678 ((e->event_code == BRCMF_E_LINK) && (!e->flags))) {
4679 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4680 }
4681
4682 if (brcmf_is_apmode(ifp->vif)) {
4683 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data);
4684 } else if (brcmf_is_linkup(e)) {
4685 brcmf_dbg(CONN, "Linkup\n");
4686 if (brcmf_is_ibssmode(ifp->vif)) {
4687 chan = ieee80211_get_channel(cfg->wiphy, cfg->channel);
4688 memcpy(profile->bssid, e->addr, ETH_ALEN);
4689 wl_inform_ibss(cfg, ndev, e->addr);
4690 cfg80211_ibss_joined(ndev, e->addr, chan, GFP_KERNEL);
4691 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4692 &ifp->vif->sme_state);
4693 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4694 &ifp->vif->sme_state);
4695 } else
4696 brcmf_bss_connect_done(cfg, ndev, e, true);
4697 } else if (brcmf_is_linkdown(e)) {
4698 brcmf_dbg(CONN, "Linkdown\n");
4699 if (!brcmf_is_ibssmode(ifp->vif)) {
4700 brcmf_bss_connect_done(cfg, ndev, e, false);
4701 }
4702 brcmf_link_down(ifp->vif);
4703 brcmf_init_prof(ndev_to_prof(ndev));
4704 if (ndev != cfg_to_ndev(cfg))
4705 complete(&cfg->vif_disabled);
4706 } else if (brcmf_is_nonetwork(cfg, e)) {
4707 if (brcmf_is_ibssmode(ifp->vif))
4708 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4709 &ifp->vif->sme_state);
4710 else
4711 brcmf_bss_connect_done(cfg, ndev, e, false);
4712 }
4713
4714 return err;
4715 }
4716
4717 static s32
4718 brcmf_notify_roaming_status(struct brcmf_if *ifp,
4719 const struct brcmf_event_msg *e, void *data)
4720 {
4721 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4722 u32 event = e->event_code;
4723 u32 status = e->status;
4724
4725 if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) {
4726 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state))
4727 brcmf_bss_roaming_done(cfg, ifp->ndev, e);
4728 else
4729 brcmf_bss_connect_done(cfg, ifp->ndev, e, true);
4730 }
4731
4732 return 0;
4733 }
4734
4735 static s32
4736 brcmf_notify_mic_status(struct brcmf_if *ifp,
4737 const struct brcmf_event_msg *e, void *data)
4738 {
4739 u16 flags = e->flags;
4740 enum nl80211_key_type key_type;
4741
4742 if (flags & BRCMF_EVENT_MSG_GROUP)
4743 key_type = NL80211_KEYTYPE_GROUP;
4744 else
4745 key_type = NL80211_KEYTYPE_PAIRWISE;
4746
4747 cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1,
4748 NULL, GFP_KERNEL);
4749
4750 return 0;
4751 }
4752
4753 static s32 brcmf_notify_vif_event(struct brcmf_if *ifp,
4754 const struct brcmf_event_msg *e, void *data)
4755 {
4756 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4757 struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data;
4758 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
4759 struct brcmf_cfg80211_vif *vif;
4760
4761 brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfg %u\n",
4762 ifevent->action, ifevent->flags, ifevent->ifidx,
4763 ifevent->bssidx);
4764
4765 mutex_lock(&event->vif_event_lock);
4766 event->action = ifevent->action;
4767 vif = event->vif;
4768
4769 switch (ifevent->action) {
4770 case BRCMF_E_IF_ADD:
4771 /* waiting process may have timed out */
4772 if (!cfg->vif_event.vif) {
4773 mutex_unlock(&event->vif_event_lock);
4774 return -EBADF;
4775 }
4776
4777 ifp->vif = vif;
4778 vif->ifp = ifp;
4779 if (ifp->ndev) {
4780 vif->wdev.netdev = ifp->ndev;
4781 ifp->ndev->ieee80211_ptr = &vif->wdev;
4782 SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy));
4783 }
4784 mutex_unlock(&event->vif_event_lock);
4785 wake_up(&event->vif_wq);
4786 return 0;
4787
4788 case BRCMF_E_IF_DEL:
4789 mutex_unlock(&event->vif_event_lock);
4790 /* event may not be upon user request */
4791 if (brcmf_cfg80211_vif_event_armed(cfg))
4792 wake_up(&event->vif_wq);
4793 return 0;
4794
4795 case BRCMF_E_IF_CHANGE:
4796 mutex_unlock(&event->vif_event_lock);
4797 wake_up(&event->vif_wq);
4798 return 0;
4799
4800 default:
4801 mutex_unlock(&event->vif_event_lock);
4802 break;
4803 }
4804 return -EINVAL;
4805 }
4806
4807 static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf)
4808 {
4809 conf->frag_threshold = (u32)-1;
4810 conf->rts_threshold = (u32)-1;
4811 conf->retry_short = (u32)-1;
4812 conf->retry_long = (u32)-1;
4813 conf->tx_power = -1;
4814 }
4815
4816 static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg)
4817 {
4818 brcmf_fweh_register(cfg->pub, BRCMF_E_LINK,
4819 brcmf_notify_connect_status);
4820 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND,
4821 brcmf_notify_connect_status);
4822 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH,
4823 brcmf_notify_connect_status);
4824 brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND,
4825 brcmf_notify_connect_status);
4826 brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND,
4827 brcmf_notify_connect_status);
4828 brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND,
4829 brcmf_notify_connect_status);
4830 brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM,
4831 brcmf_notify_roaming_status);
4832 brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR,
4833 brcmf_notify_mic_status);
4834 brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID,
4835 brcmf_notify_connect_status);
4836 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND,
4837 brcmf_notify_sched_scan_results);
4838 brcmf_fweh_register(cfg->pub, BRCMF_E_IF,
4839 brcmf_notify_vif_event);
4840 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG,
4841 brcmf_p2p_notify_rx_mgmt_p2p_probereq);
4842 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE,
4843 brcmf_p2p_notify_listen_complete);
4844 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX,
4845 brcmf_p2p_notify_action_frame_rx);
4846 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE,
4847 brcmf_p2p_notify_action_tx_complete);
4848 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE,
4849 brcmf_p2p_notify_action_tx_complete);
4850 }
4851
4852 static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg)
4853 {
4854 kfree(cfg->conf);
4855 cfg->conf = NULL;
4856 kfree(cfg->escan_ioctl_buf);
4857 cfg->escan_ioctl_buf = NULL;
4858 kfree(cfg->extra_buf);
4859 cfg->extra_buf = NULL;
4860 kfree(cfg->pmk_list);
4861 cfg->pmk_list = NULL;
4862 }
4863
4864 static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg)
4865 {
4866 cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL);
4867 if (!cfg->conf)
4868 goto init_priv_mem_out;
4869 cfg->escan_ioctl_buf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
4870 if (!cfg->escan_ioctl_buf)
4871 goto init_priv_mem_out;
4872 cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
4873 if (!cfg->extra_buf)
4874 goto init_priv_mem_out;
4875 cfg->pmk_list = kzalloc(sizeof(*cfg->pmk_list), GFP_KERNEL);
4876 if (!cfg->pmk_list)
4877 goto init_priv_mem_out;
4878
4879 return 0;
4880
4881 init_priv_mem_out:
4882 brcmf_deinit_priv_mem(cfg);
4883
4884 return -ENOMEM;
4885 }
4886
4887 static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg)
4888 {
4889 s32 err = 0;
4890
4891 cfg->scan_request = NULL;
4892 cfg->pwr_save = true;
4893 cfg->active_scan = true; /* we do active scan per default */
4894 cfg->dongle_up = false; /* dongle is not up yet */
4895 err = brcmf_init_priv_mem(cfg);
4896 if (err)
4897 return err;
4898 brcmf_register_event_handlers(cfg);
4899 mutex_init(&cfg->usr_sync);
4900 brcmf_init_escan(cfg);
4901 brcmf_init_conf(cfg->conf);
4902 init_completion(&cfg->vif_disabled);
4903 return err;
4904 }
4905
4906 static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg)
4907 {
4908 cfg->dongle_up = false; /* dongle down */
4909 brcmf_abort_scanning(cfg);
4910 brcmf_deinit_priv_mem(cfg);
4911 }
4912
4913 static void init_vif_event(struct brcmf_cfg80211_vif_event *event)
4914 {
4915 init_waitqueue_head(&event->vif_wq);
4916 mutex_init(&event->vif_event_lock);
4917 }
4918
4919 static s32
4920 brcmf_dongle_roam(struct brcmf_if *ifp, u32 bcn_timeout)
4921 {
4922 s32 err = 0;
4923 __le32 roamtrigger[2];
4924 __le32 roam_delta[2];
4925
4926 /*
4927 * Setup timeout if Beacons are lost and roam is
4928 * off to report link down
4929 */
4930 if (brcmf_roamoff) {
4931 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout);
4932 if (err) {
4933 brcmf_err("bcn_timeout error (%d)\n", err);
4934 goto dongle_rom_out;
4935 }
4936 }
4937
4938 /*
4939 * Enable/Disable built-in roaming to allow supplicant
4940 * to take care of roaming
4941 */
4942 brcmf_dbg(INFO, "Internal Roaming = %s\n",
4943 brcmf_roamoff ? "Off" : "On");
4944 err = brcmf_fil_iovar_int_set(ifp, "roam_off", !!(brcmf_roamoff));
4945 if (err) {
4946 brcmf_err("roam_off error (%d)\n", err);
4947 goto dongle_rom_out;
4948 }
4949
4950 roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL);
4951 roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL);
4952 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER,
4953 (void *)roamtrigger, sizeof(roamtrigger));
4954 if (err) {
4955 brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err);
4956 goto dongle_rom_out;
4957 }
4958
4959 roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA);
4960 roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL);
4961 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA,
4962 (void *)roam_delta, sizeof(roam_delta));
4963 if (err) {
4964 brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err);
4965 goto dongle_rom_out;
4966 }
4967
4968 dongle_rom_out:
4969 return err;
4970 }
4971
4972 static s32
4973 brcmf_dongle_scantime(struct brcmf_if *ifp, s32 scan_assoc_time,
4974 s32 scan_unassoc_time, s32 scan_passive_time)
4975 {
4976 s32 err = 0;
4977
4978 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
4979 scan_assoc_time);
4980 if (err) {
4981 if (err == -EOPNOTSUPP)
4982 brcmf_dbg(INFO, "Scan assoc time is not supported\n");
4983 else
4984 brcmf_err("Scan assoc time error (%d)\n", err);
4985 goto dongle_scantime_out;
4986 }
4987 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
4988 scan_unassoc_time);
4989 if (err) {
4990 if (err == -EOPNOTSUPP)
4991 brcmf_dbg(INFO, "Scan unassoc time is not supported\n");
4992 else
4993 brcmf_err("Scan unassoc time error (%d)\n", err);
4994 goto dongle_scantime_out;
4995 }
4996
4997 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME,
4998 scan_passive_time);
4999 if (err) {
5000 if (err == -EOPNOTSUPP)
5001 brcmf_dbg(INFO, "Scan passive time is not supported\n");
5002 else
5003 brcmf_err("Scan passive time error (%d)\n", err);
5004 goto dongle_scantime_out;
5005 }
5006
5007 dongle_scantime_out:
5008 return err;
5009 }
5010
5011 /* Filter the list of channels received from firmware counting only
5012 * the 20MHz channels. The wiphy band data only needs those which get
5013 * flagged to indicate if they can take part in higher bandwidth.
5014 */
5015 static void brcmf_count_20mhz_channels(struct brcmf_cfg80211_info *cfg,
5016 struct brcmf_chanspec_list *chlist,
5017 u32 chcnt[])
5018 {
5019 u32 total = le32_to_cpu(chlist->count);
5020 struct brcmu_chan ch;
5021 int i;
5022
5023 for (i = 0; i < total; i++) {
5024 ch.chspec = (u16)le32_to_cpu(chlist->element[i]);
5025 cfg->d11inf.decchspec(&ch);
5026
5027 /* Firmware gives a ordered list. We skip non-20MHz
5028 * channels is 2G. For 5G we can abort upon reaching
5029 * a non-20MHz channel in the list.
5030 */
5031 if (ch.bw != BRCMU_CHAN_BW_20) {
5032 if (ch.band == BRCMU_CHAN_BAND_5G)
5033 break;
5034 else
5035 continue;
5036 }
5037
5038 if (ch.band == BRCMU_CHAN_BAND_2G)
5039 chcnt[0] += 1;
5040 else if (ch.band == BRCMU_CHAN_BAND_5G)
5041 chcnt[1] += 1;
5042 }
5043 }
5044
5045 static void brcmf_update_bw40_channel_flag(struct ieee80211_channel *channel,
5046 struct brcmu_chan *ch)
5047 {
5048 u32 ht40_flag;
5049
5050 ht40_flag = channel->flags & IEEE80211_CHAN_NO_HT40;
5051 if (ch->sb == BRCMU_CHAN_SB_U) {
5052 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5053 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5054 channel->flags |= IEEE80211_CHAN_NO_HT40PLUS;
5055 } else {
5056 /* It should be one of
5057 * IEEE80211_CHAN_NO_HT40 or
5058 * IEEE80211_CHAN_NO_HT40PLUS
5059 */
5060 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5061 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5062 channel->flags |= IEEE80211_CHAN_NO_HT40MINUS;
5063 }
5064 }
5065
5066 static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg,
5067 u32 bw_cap[])
5068 {
5069 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5070 struct ieee80211_supported_band *band;
5071 struct ieee80211_channel *channel;
5072 struct wiphy *wiphy;
5073 struct brcmf_chanspec_list *list;
5074 struct brcmu_chan ch;
5075 int err;
5076 u8 *pbuf;
5077 u32 i, j;
5078 u32 total;
5079 u32 chaninfo;
5080 u32 chcnt[2] = { 0, 0 };
5081 u32 index;
5082
5083 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5084
5085 if (pbuf == NULL)
5086 return -ENOMEM;
5087
5088 list = (struct brcmf_chanspec_list *)pbuf;
5089
5090 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5091 BRCMF_DCMD_MEDLEN);
5092 if (err) {
5093 brcmf_err("get chanspecs error (%d)\n", err);
5094 goto fail_pbuf;
5095 }
5096
5097 brcmf_count_20mhz_channels(cfg, list, chcnt);
5098 wiphy = cfg_to_wiphy(cfg);
5099 if (chcnt[0]) {
5100 band = kmemdup(&__wl_band_2ghz, sizeof(__wl_band_2ghz),
5101 GFP_KERNEL);
5102 if (band == NULL) {
5103 err = -ENOMEM;
5104 goto fail_pbuf;
5105 }
5106 band->channels = kcalloc(chcnt[0], sizeof(*channel),
5107 GFP_KERNEL);
5108 if (band->channels == NULL) {
5109 kfree(band);
5110 err = -ENOMEM;
5111 goto fail_pbuf;
5112 }
5113 band->n_channels = 0;
5114 wiphy->bands[IEEE80211_BAND_2GHZ] = band;
5115 }
5116 if (chcnt[1]) {
5117 band = kmemdup(&__wl_band_5ghz_a, sizeof(__wl_band_5ghz_a),
5118 GFP_KERNEL);
5119 if (band == NULL) {
5120 err = -ENOMEM;
5121 goto fail_band2g;
5122 }
5123 band->channels = kcalloc(chcnt[1], sizeof(*channel),
5124 GFP_KERNEL);
5125 if (band->channels == NULL) {
5126 kfree(band);
5127 err = -ENOMEM;
5128 goto fail_band2g;
5129 }
5130 band->n_channels = 0;
5131 wiphy->bands[IEEE80211_BAND_5GHZ] = band;
5132 }
5133
5134 total = le32_to_cpu(list->count);
5135 for (i = 0; i < total; i++) {
5136 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5137 cfg->d11inf.decchspec(&ch);
5138
5139 if (ch.band == BRCMU_CHAN_BAND_2G) {
5140 band = wiphy->bands[IEEE80211_BAND_2GHZ];
5141 } else if (ch.band == BRCMU_CHAN_BAND_5G) {
5142 band = wiphy->bands[IEEE80211_BAND_5GHZ];
5143 } else {
5144 brcmf_err("Invalid channel Spec. 0x%x.\n", ch.chspec);
5145 continue;
5146 }
5147 if (!(bw_cap[band->band] & WLC_BW_40MHZ_BIT) &&
5148 ch.bw == BRCMU_CHAN_BW_40)
5149 continue;
5150 if (!(bw_cap[band->band] & WLC_BW_80MHZ_BIT) &&
5151 ch.bw == BRCMU_CHAN_BW_80)
5152 continue;
5153
5154 channel = band->channels;
5155 index = band->n_channels;
5156 for (j = 0; j < band->n_channels; j++) {
5157 if (channel[j].hw_value == ch.chnum) {
5158 index = j;
5159 break;
5160 }
5161 }
5162 channel[index].center_freq =
5163 ieee80211_channel_to_frequency(ch.chnum, band->band);
5164 channel[index].hw_value = ch.chnum;
5165
5166 /* assuming the chanspecs order is HT20,
5167 * HT40 upper, HT40 lower, and VHT80.
5168 */
5169 if (ch.bw == BRCMU_CHAN_BW_80) {
5170 channel[index].flags &= ~IEEE80211_CHAN_NO_80MHZ;
5171 } else if (ch.bw == BRCMU_CHAN_BW_40) {
5172 brcmf_update_bw40_channel_flag(&channel[index], &ch);
5173 } else {
5174 /* disable other bandwidths for now as mentioned
5175 * order assure they are enabled for subsequent
5176 * chanspecs.
5177 */
5178 channel[index].flags = IEEE80211_CHAN_NO_HT40 |
5179 IEEE80211_CHAN_NO_80MHZ;
5180 ch.bw = BRCMU_CHAN_BW_20;
5181 cfg->d11inf.encchspec(&ch);
5182 chaninfo = ch.chspec;
5183 err = brcmf_fil_bsscfg_int_get(ifp, "per_chan_info",
5184 &chaninfo);
5185 if (!err) {
5186 if (chaninfo & WL_CHAN_RADAR)
5187 channel[index].flags |=
5188 (IEEE80211_CHAN_RADAR |
5189 IEEE80211_CHAN_NO_IR);
5190 if (chaninfo & WL_CHAN_PASSIVE)
5191 channel[index].flags |=
5192 IEEE80211_CHAN_NO_IR;
5193 }
5194 }
5195 if (index == band->n_channels)
5196 band->n_channels++;
5197 }
5198 kfree(pbuf);
5199 return 0;
5200
5201 fail_band2g:
5202 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
5203 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
5204 wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
5205 fail_pbuf:
5206 kfree(pbuf);
5207 return err;
5208 }
5209
5210 static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg)
5211 {
5212 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5213 struct ieee80211_supported_band *band;
5214 struct brcmf_fil_bwcap_le band_bwcap;
5215 struct brcmf_chanspec_list *list;
5216 u8 *pbuf;
5217 u32 val;
5218 int err;
5219 struct brcmu_chan ch;
5220 u32 num_chan;
5221 int i, j;
5222
5223 /* verify support for bw_cap command */
5224 val = WLC_BAND_5G;
5225 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &val);
5226
5227 if (!err) {
5228 /* only set 2G bandwidth using bw_cap command */
5229 band_bwcap.band = cpu_to_le32(WLC_BAND_2G);
5230 band_bwcap.bw_cap = cpu_to_le32(WLC_BW_CAP_40MHZ);
5231 err = brcmf_fil_iovar_data_set(ifp, "bw_cap", &band_bwcap,
5232 sizeof(band_bwcap));
5233 } else {
5234 brcmf_dbg(INFO, "fallback to mimo_bw_cap\n");
5235 val = WLC_N_BW_40ALL;
5236 err = brcmf_fil_iovar_int_set(ifp, "mimo_bw_cap", val);
5237 }
5238
5239 if (!err) {
5240 /* update channel info in 2G band */
5241 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5242
5243 if (pbuf == NULL)
5244 return -ENOMEM;
5245
5246 ch.band = BRCMU_CHAN_BAND_2G;
5247 ch.bw = BRCMU_CHAN_BW_40;
5248 ch.sb = BRCMU_CHAN_SB_NONE;
5249 ch.chnum = 0;
5250 cfg->d11inf.encchspec(&ch);
5251
5252 /* pass encoded chanspec in query */
5253 *(__le16 *)pbuf = cpu_to_le16(ch.chspec);
5254
5255 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5256 BRCMF_DCMD_MEDLEN);
5257 if (err) {
5258 brcmf_err("get chanspecs error (%d)\n", err);
5259 kfree(pbuf);
5260 return err;
5261 }
5262
5263 band = cfg_to_wiphy(cfg)->bands[IEEE80211_BAND_2GHZ];
5264 list = (struct brcmf_chanspec_list *)pbuf;
5265 num_chan = le32_to_cpu(list->count);
5266 for (i = 0; i < num_chan; i++) {
5267 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5268 cfg->d11inf.decchspec(&ch);
5269 if (WARN_ON(ch.band != BRCMU_CHAN_BAND_2G))
5270 continue;
5271 if (WARN_ON(ch.bw != BRCMU_CHAN_BW_40))
5272 continue;
5273 for (j = 0; j < band->n_channels; j++) {
5274 if (band->channels[j].hw_value == ch.chnum)
5275 break;
5276 }
5277 if (WARN_ON(j == band->n_channels))
5278 continue;
5279
5280 brcmf_update_bw40_channel_flag(&band->channels[j], &ch);
5281 }
5282 kfree(pbuf);
5283 }
5284 return err;
5285 }
5286
5287 static void brcmf_get_bwcap(struct brcmf_if *ifp, u32 bw_cap[])
5288 {
5289 u32 band, mimo_bwcap;
5290 int err;
5291
5292 band = WLC_BAND_2G;
5293 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5294 if (!err) {
5295 bw_cap[IEEE80211_BAND_2GHZ] = band;
5296 band = WLC_BAND_5G;
5297 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5298 if (!err) {
5299 bw_cap[IEEE80211_BAND_5GHZ] = band;
5300 return;
5301 }
5302 WARN_ON(1);
5303 return;
5304 }
5305 brcmf_dbg(INFO, "fallback to mimo_bw_cap info\n");
5306 mimo_bwcap = 0;
5307 err = brcmf_fil_iovar_int_get(ifp, "mimo_bw_cap", &mimo_bwcap);
5308 if (err)
5309 /* assume 20MHz if firmware does not give a clue */
5310 mimo_bwcap = WLC_N_BW_20ALL;
5311
5312 switch (mimo_bwcap) {
5313 case WLC_N_BW_40ALL:
5314 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_40MHZ_BIT;
5315 /* fall-thru */
5316 case WLC_N_BW_20IN2G_40IN5G:
5317 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_40MHZ_BIT;
5318 /* fall-thru */
5319 case WLC_N_BW_20ALL:
5320 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_20MHZ_BIT;
5321 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_20MHZ_BIT;
5322 break;
5323 default:
5324 brcmf_err("invalid mimo_bw_cap value\n");
5325 }
5326 }
5327
5328 static void brcmf_update_ht_cap(struct ieee80211_supported_band *band,
5329 u32 bw_cap[2], u32 nchain)
5330 {
5331 band->ht_cap.ht_supported = true;
5332 if (bw_cap[band->band] & WLC_BW_40MHZ_BIT) {
5333 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
5334 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5335 }
5336 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
5337 band->ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
5338 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
5339 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
5340 memset(band->ht_cap.mcs.rx_mask, 0xff, nchain);
5341 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
5342 }
5343
5344 static __le16 brcmf_get_mcs_map(u32 nchain, enum ieee80211_vht_mcs_support supp)
5345 {
5346 u16 mcs_map;
5347 int i;
5348
5349 for (i = 0, mcs_map = 0xFFFF; i < nchain; i++)
5350 mcs_map = (mcs_map << 2) | supp;
5351
5352 return cpu_to_le16(mcs_map);
5353 }
5354
5355 static void brcmf_update_vht_cap(struct ieee80211_supported_band *band,
5356 u32 bw_cap[2], u32 nchain)
5357 {
5358 __le16 mcs_map;
5359
5360 /* not allowed in 2.4G band */
5361 if (band->band == IEEE80211_BAND_2GHZ)
5362 return;
5363
5364 band->vht_cap.vht_supported = true;
5365 /* 80MHz is mandatory */
5366 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_80;
5367 if (bw_cap[band->band] & WLC_BW_160MHZ_BIT) {
5368 band->vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
5369 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_160;
5370 }
5371 /* all support 256-QAM */
5372 mcs_map = brcmf_get_mcs_map(nchain, IEEE80211_VHT_MCS_SUPPORT_0_9);
5373 band->vht_cap.vht_mcs.rx_mcs_map = mcs_map;
5374 band->vht_cap.vht_mcs.tx_mcs_map = mcs_map;
5375 }
5376
5377 static int brcmf_setup_wiphybands(struct wiphy *wiphy)
5378 {
5379 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
5380 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5381 u32 nmode = 0;
5382 u32 vhtmode = 0;
5383 u32 bw_cap[2] = { WLC_BW_20MHZ_BIT, WLC_BW_20MHZ_BIT };
5384 u32 rxchain;
5385 u32 nchain;
5386 int err;
5387 s32 i;
5388 struct ieee80211_supported_band *band;
5389
5390 (void)brcmf_fil_iovar_int_get(ifp, "vhtmode", &vhtmode);
5391 err = brcmf_fil_iovar_int_get(ifp, "nmode", &nmode);
5392 if (err) {
5393 brcmf_err("nmode error (%d)\n", err);
5394 } else {
5395 brcmf_get_bwcap(ifp, bw_cap);
5396 }
5397 brcmf_dbg(INFO, "nmode=%d, vhtmode=%d, bw_cap=(%d, %d)\n",
5398 nmode, vhtmode, bw_cap[IEEE80211_BAND_2GHZ],
5399 bw_cap[IEEE80211_BAND_5GHZ]);
5400
5401 err = brcmf_fil_iovar_int_get(ifp, "rxchain", &rxchain);
5402 if (err) {
5403 brcmf_err("rxchain error (%d)\n", err);
5404 nchain = 1;
5405 } else {
5406 for (nchain = 0; rxchain; nchain++)
5407 rxchain = rxchain & (rxchain - 1);
5408 }
5409 brcmf_dbg(INFO, "nchain=%d\n", nchain);
5410
5411 err = brcmf_construct_chaninfo(cfg, bw_cap);
5412 if (err) {
5413 brcmf_err("brcmf_construct_chaninfo failed (%d)\n", err);
5414 return err;
5415 }
5416
5417 wiphy = cfg_to_wiphy(cfg);
5418 for (i = 0; i < ARRAY_SIZE(wiphy->bands); i++) {
5419 band = wiphy->bands[i];
5420 if (band == NULL)
5421 continue;
5422
5423 if (nmode)
5424 brcmf_update_ht_cap(band, bw_cap, nchain);
5425 if (vhtmode)
5426 brcmf_update_vht_cap(band, bw_cap, nchain);
5427 }
5428
5429 return 0;
5430 }
5431
5432 static const struct ieee80211_iface_limit brcmf_iface_limits[] = {
5433 {
5434 .max = 2,
5435 .types = BIT(NL80211_IFTYPE_STATION) |
5436 BIT(NL80211_IFTYPE_ADHOC) |
5437 BIT(NL80211_IFTYPE_AP)
5438 },
5439 {
5440 .max = 1,
5441 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
5442 BIT(NL80211_IFTYPE_P2P_GO)
5443 },
5444 {
5445 .max = 1,
5446 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
5447 }
5448 };
5449 static struct ieee80211_iface_combination brcmf_iface_combos[] = {
5450 {
5451 .max_interfaces = BRCMF_IFACE_MAX_CNT,
5452 .num_different_channels = 1,
5453 .n_limits = ARRAY_SIZE(brcmf_iface_limits),
5454 .limits = brcmf_iface_limits
5455 }
5456 };
5457
5458 static const struct ieee80211_txrx_stypes
5459 brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = {
5460 [NL80211_IFTYPE_STATION] = {
5461 .tx = 0xffff,
5462 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5463 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5464 },
5465 [NL80211_IFTYPE_P2P_CLIENT] = {
5466 .tx = 0xffff,
5467 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5468 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5469 },
5470 [NL80211_IFTYPE_P2P_GO] = {
5471 .tx = 0xffff,
5472 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
5473 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
5474 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
5475 BIT(IEEE80211_STYPE_DISASSOC >> 4) |
5476 BIT(IEEE80211_STYPE_AUTH >> 4) |
5477 BIT(IEEE80211_STYPE_DEAUTH >> 4) |
5478 BIT(IEEE80211_STYPE_ACTION >> 4)
5479 },
5480 [NL80211_IFTYPE_P2P_DEVICE] = {
5481 .tx = 0xffff,
5482 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5483 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5484 }
5485 };
5486
5487 static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
5488 {
5489 /* scheduled scan settings */
5490 wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT;
5491 wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
5492 wiphy->max_sched_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5493 wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
5494 }
5495
5496 #ifdef CONFIG_PM
5497 static const struct wiphy_wowlan_support brcmf_wowlan_support = {
5498 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
5499 .n_patterns = BRCMF_WOWL_MAXPATTERNS,
5500 .pattern_max_len = BRCMF_WOWL_MAXPATTERNSIZE,
5501 .pattern_min_len = 1,
5502 .max_pkt_offset = 1500,
5503 };
5504 #endif
5505
5506 static void brcmf_wiphy_wowl_params(struct wiphy *wiphy)
5507 {
5508 #ifdef CONFIG_PM
5509 /* wowl settings */
5510 wiphy->wowlan = &brcmf_wowlan_support;
5511 #endif
5512 }
5513
5514 static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
5515 {
5516 struct ieee80211_iface_combination ifc_combo;
5517 wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
5518 wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5519 wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX;
5520 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
5521 BIT(NL80211_IFTYPE_ADHOC) |
5522 BIT(NL80211_IFTYPE_AP) |
5523 BIT(NL80211_IFTYPE_P2P_CLIENT) |
5524 BIT(NL80211_IFTYPE_P2P_GO) |
5525 BIT(NL80211_IFTYPE_P2P_DEVICE);
5526 /* need VSDB firmware feature for concurrent channels */
5527 ifc_combo = brcmf_iface_combos[0];
5528 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MCHAN))
5529 ifc_combo.num_different_channels = 2;
5530 wiphy->iface_combinations = kmemdup(&ifc_combo,
5531 sizeof(ifc_combo),
5532 GFP_KERNEL);
5533 wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos);
5534 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
5535 wiphy->cipher_suites = __wl_cipher_suites;
5536 wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites);
5537 wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT |
5538 WIPHY_FLAG_OFFCHAN_TX |
5539 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
5540 WIPHY_FLAG_SUPPORTS_TDLS;
5541 if (!brcmf_roamoff)
5542 wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM;
5543 wiphy->mgmt_stypes = brcmf_txrx_stypes;
5544 wiphy->max_remain_on_channel_duration = 5000;
5545 brcmf_wiphy_pno_params(wiphy);
5546
5547 /* vendor commands/events support */
5548 wiphy->vendor_commands = brcmf_vendor_cmds;
5549 wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1;
5550
5551 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL))
5552 brcmf_wiphy_wowl_params(wiphy);
5553
5554 return brcmf_setup_wiphybands(wiphy);
5555 }
5556
5557 static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)
5558 {
5559 struct net_device *ndev;
5560 struct wireless_dev *wdev;
5561 struct brcmf_if *ifp;
5562 s32 power_mode;
5563 s32 err = 0;
5564
5565 if (cfg->dongle_up)
5566 return err;
5567
5568 ndev = cfg_to_ndev(cfg);
5569 wdev = ndev->ieee80211_ptr;
5570 ifp = netdev_priv(ndev);
5571
5572 /* make sure RF is ready for work */
5573 brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
5574
5575 brcmf_dongle_scantime(ifp, WL_SCAN_CHANNEL_TIME,
5576 WL_SCAN_UNASSOC_TIME, WL_SCAN_PASSIVE_TIME);
5577
5578 power_mode = cfg->pwr_save ? PM_FAST : PM_OFF;
5579 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode);
5580 if (err)
5581 goto default_conf_out;
5582 brcmf_dbg(INFO, "power save set to %s\n",
5583 (power_mode ? "enabled" : "disabled"));
5584
5585 err = brcmf_dongle_roam(ifp, WL_BEACON_TIMEOUT);
5586 if (err)
5587 goto default_conf_out;
5588 err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype,
5589 NULL, NULL);
5590 if (err)
5591 goto default_conf_out;
5592
5593 brcmf_configure_arp_offload(ifp, true);
5594
5595 cfg->dongle_up = true;
5596 default_conf_out:
5597
5598 return err;
5599
5600 }
5601
5602 static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp)
5603 {
5604 set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5605
5606 return brcmf_config_dongle(ifp->drvr->config);
5607 }
5608
5609 static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp)
5610 {
5611 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5612
5613 /*
5614 * While going down, if associated with AP disassociate
5615 * from AP to save power
5616 */
5617 if (check_vif_up(ifp->vif)) {
5618 brcmf_link_down(ifp->vif);
5619
5620 /* Make sure WPA_Supplicant receives all the event
5621 generated due to DISASSOC call to the fw to keep
5622 the state fw and WPA_Supplicant state consistent
5623 */
5624 brcmf_delay(500);
5625 }
5626
5627 brcmf_abort_scanning(cfg);
5628 clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5629
5630 return 0;
5631 }
5632
5633 s32 brcmf_cfg80211_up(struct net_device *ndev)
5634 {
5635 struct brcmf_if *ifp = netdev_priv(ndev);
5636 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5637 s32 err = 0;
5638
5639 mutex_lock(&cfg->usr_sync);
5640 err = __brcmf_cfg80211_up(ifp);
5641 mutex_unlock(&cfg->usr_sync);
5642
5643 return err;
5644 }
5645
5646 s32 brcmf_cfg80211_down(struct net_device *ndev)
5647 {
5648 struct brcmf_if *ifp = netdev_priv(ndev);
5649 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5650 s32 err = 0;
5651
5652 mutex_lock(&cfg->usr_sync);
5653 err = __brcmf_cfg80211_down(ifp);
5654 mutex_unlock(&cfg->usr_sync);
5655
5656 return err;
5657 }
5658
5659 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp)
5660 {
5661 struct wireless_dev *wdev = &ifp->vif->wdev;
5662
5663 return wdev->iftype;
5664 }
5665
5666 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg,
5667 unsigned long state)
5668 {
5669 struct brcmf_cfg80211_vif *vif;
5670
5671 list_for_each_entry(vif, &cfg->vif_list, list) {
5672 if (test_bit(state, &vif->sme_state))
5673 return true;
5674 }
5675 return false;
5676 }
5677
5678 static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event,
5679 u8 action)
5680 {
5681 u8 evt_action;
5682
5683 mutex_lock(&event->vif_event_lock);
5684 evt_action = event->action;
5685 mutex_unlock(&event->vif_event_lock);
5686 return evt_action == action;
5687 }
5688
5689 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
5690 struct brcmf_cfg80211_vif *vif)
5691 {
5692 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5693
5694 mutex_lock(&event->vif_event_lock);
5695 event->vif = vif;
5696 event->action = 0;
5697 mutex_unlock(&event->vif_event_lock);
5698 }
5699
5700 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg)
5701 {
5702 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5703 bool armed;
5704
5705 mutex_lock(&event->vif_event_lock);
5706 armed = event->vif != NULL;
5707 mutex_unlock(&event->vif_event_lock);
5708
5709 return armed;
5710 }
5711 int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
5712 u8 action, ulong timeout)
5713 {
5714 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5715
5716 return wait_event_timeout(event->vif_wq,
5717 vif_event_equals(event, action), timeout);
5718 }
5719
5720 static void brcmf_free_wiphy(struct wiphy *wiphy)
5721 {
5722 kfree(wiphy->iface_combinations);
5723 if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
5724 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
5725 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
5726 }
5727 if (wiphy->bands[IEEE80211_BAND_5GHZ]) {
5728 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]->channels);
5729 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]);
5730 }
5731 wiphy_free(wiphy);
5732 }
5733
5734 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
5735 struct device *busdev)
5736 {
5737 struct net_device *ndev = drvr->iflist[0]->ndev;
5738 struct brcmf_cfg80211_info *cfg;
5739 struct wiphy *wiphy;
5740 struct brcmf_cfg80211_vif *vif;
5741 struct brcmf_if *ifp;
5742 s32 err = 0;
5743 s32 io_type;
5744 u16 *cap = NULL;
5745
5746 if (!ndev) {
5747 brcmf_err("ndev is invalid\n");
5748 return NULL;
5749 }
5750
5751 ifp = netdev_priv(ndev);
5752 wiphy = wiphy_new(&wl_cfg80211_ops, sizeof(struct brcmf_cfg80211_info));
5753 if (!wiphy) {
5754 brcmf_err("Could not allocate wiphy device\n");
5755 return NULL;
5756 }
5757 set_wiphy_dev(wiphy, busdev);
5758
5759 cfg = wiphy_priv(wiphy);
5760 cfg->wiphy = wiphy;
5761 cfg->pub = drvr;
5762 init_vif_event(&cfg->vif_event);
5763 INIT_LIST_HEAD(&cfg->vif_list);
5764
5765 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION, false);
5766 if (IS_ERR(vif))
5767 goto wiphy_out;
5768
5769 vif->ifp = ifp;
5770 vif->wdev.netdev = ndev;
5771 ndev->ieee80211_ptr = &vif->wdev;
5772 SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy));
5773
5774 err = wl_init_priv(cfg);
5775 if (err) {
5776 brcmf_err("Failed to init iwm_priv (%d)\n", err);
5777 brcmf_free_vif(vif);
5778 goto wiphy_out;
5779 }
5780 ifp->vif = vif;
5781
5782 /* determine d11 io type before wiphy setup */
5783 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_VERSION, &io_type);
5784 if (err) {
5785 brcmf_err("Failed to get D11 version (%d)\n", err);
5786 goto priv_out;
5787 }
5788 cfg->d11inf.io_type = (u8)io_type;
5789 brcmu_d11_attach(&cfg->d11inf);
5790
5791 err = brcmf_setup_wiphy(wiphy, ifp);
5792 if (err < 0)
5793 goto priv_out;
5794
5795 brcmf_dbg(INFO, "Registering custom regulatory\n");
5796 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
5797 wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom);
5798
5799 /* firmware defaults to 40MHz disabled in 2G band. We signal
5800 * cfg80211 here that we do and have it decide we can enable
5801 * it. But first check if device does support 2G operation.
5802 */
5803 if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
5804 cap = &wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap.cap;
5805 *cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5806 }
5807 err = wiphy_register(wiphy);
5808 if (err < 0) {
5809 brcmf_err("Could not register wiphy device (%d)\n", err);
5810 goto priv_out;
5811 }
5812
5813 /* If cfg80211 didn't disable 40MHz HT CAP in wiphy_register(),
5814 * setup 40MHz in 2GHz band and enable OBSS scanning.
5815 */
5816 if (cap && (*cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) {
5817 err = brcmf_enable_bw40_2g(cfg);
5818 if (!err)
5819 err = brcmf_fil_iovar_int_set(ifp, "obss_coex",
5820 BRCMF_OBSS_COEX_AUTO);
5821 else
5822 *cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5823 }
5824
5825 err = brcmf_p2p_attach(cfg);
5826 if (err) {
5827 brcmf_err("P2P initilisation failed (%d)\n", err);
5828 goto wiphy_unreg_out;
5829 }
5830 err = brcmf_btcoex_attach(cfg);
5831 if (err) {
5832 brcmf_err("BT-coex initialisation failed (%d)\n", err);
5833 brcmf_p2p_detach(&cfg->p2p);
5834 goto wiphy_unreg_out;
5835 }
5836
5837 err = brcmf_fil_iovar_int_set(ifp, "tdls_enable", 1);
5838 if (err) {
5839 brcmf_dbg(INFO, "TDLS not enabled (%d)\n", err);
5840 wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_TDLS;
5841 } else {
5842 brcmf_fweh_register(cfg->pub, BRCMF_E_TDLS_PEER_EVENT,
5843 brcmf_notify_tdls_peer_event);
5844 }
5845
5846 return cfg;
5847
5848 wiphy_unreg_out:
5849 wiphy_unregister(cfg->wiphy);
5850 priv_out:
5851 wl_deinit_priv(cfg);
5852 brcmf_free_vif(vif);
5853 wiphy_out:
5854 brcmf_free_wiphy(wiphy);
5855 return NULL;
5856 }
5857
5858 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
5859 {
5860 if (!cfg)
5861 return;
5862
5863 WARN_ON(!list_empty(&cfg->vif_list));
5864 wiphy_unregister(cfg->wiphy);
5865 brcmf_btcoex_detach(cfg);
5866 brcmf_p2p_detach(&cfg->p2p);
5867 wl_deinit_priv(cfg);
5868 brcmf_free_wiphy(cfg->wiphy);
5869 }
Linux kernel - Deliverables
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