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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[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 int brcmf_cfg80211_request_ap_if(struct brcmf_if *ifp)
524 {
525 struct brcmf_mbss_ssid_le mbss_ssid_le;
526 int bsscfgidx;
527 int err;
528
529 memset(&mbss_ssid_le, 0, sizeof(mbss_ssid_le));
530 bsscfgidx = brcmf_get_next_free_bsscfgidx(ifp->drvr);
531 if (bsscfgidx < 0)
532 return bsscfgidx;
533
534 mbss_ssid_le.bsscfgidx = cpu_to_le32(bsscfgidx);
535 mbss_ssid_le.SSID_len = cpu_to_le32(5);
536 sprintf(mbss_ssid_le.SSID, "ssid%d" , bsscfgidx);
537
538 err = brcmf_fil_bsscfg_data_set(ifp, "bsscfg:ssid", &mbss_ssid_le,
539 sizeof(mbss_ssid_le));
540 if (err < 0)
541 brcmf_err("setting ssid failed %d\n", err);
542
543 return err;
544 }
545
546 /**
547 * brcmf_ap_add_vif() - create a new AP virtual interface for multiple BSS
548 *
549 * @wiphy: wiphy device of new interface.
550 * @name: name of the new interface.
551 * @flags: not used.
552 * @params: contains mac address for AP device.
553 */
554 static
555 struct wireless_dev *brcmf_ap_add_vif(struct wiphy *wiphy, const char *name,
556 u32 *flags, struct vif_params *params)
557 {
558 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
559 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
560 struct brcmf_cfg80211_vif *vif;
561 int err;
562
563 if (brcmf_cfg80211_vif_event_armed(cfg))
564 return ERR_PTR(-EBUSY);
565
566 brcmf_dbg(INFO, "Adding vif \"%s\"\n", name);
567
568 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_AP, false);
569 if (IS_ERR(vif))
570 return (struct wireless_dev *)vif;
571
572 brcmf_cfg80211_arm_vif_event(cfg, vif);
573
574 err = brcmf_cfg80211_request_ap_if(ifp);
575 if (err) {
576 brcmf_cfg80211_arm_vif_event(cfg, NULL);
577 goto fail;
578 }
579
580 /* wait for firmware event */
581 err = brcmf_cfg80211_wait_vif_event_timeout(cfg, BRCMF_E_IF_ADD,
582 msecs_to_jiffies(1500));
583 brcmf_cfg80211_arm_vif_event(cfg, NULL);
584 if (!err) {
585 brcmf_err("timeout occurred\n");
586 err = -EIO;
587 goto fail;
588 }
589
590 /* interface created in firmware */
591 ifp = vif->ifp;
592 if (!ifp) {
593 brcmf_err("no if pointer provided\n");
594 err = -ENOENT;
595 goto fail;
596 }
597
598 strncpy(ifp->ndev->name, name, sizeof(ifp->ndev->name) - 1);
599 err = brcmf_net_attach(ifp, true);
600 if (err) {
601 brcmf_err("Registering netdevice failed\n");
602 goto fail;
603 }
604
605 return &ifp->vif->wdev;
606
607 fail:
608 brcmf_free_vif(vif);
609 return ERR_PTR(err);
610 }
611
612 static bool brcmf_is_apmode(struct brcmf_cfg80211_vif *vif)
613 {
614 enum nl80211_iftype iftype;
615
616 iftype = vif->wdev.iftype;
617 return iftype == NL80211_IFTYPE_AP || iftype == NL80211_IFTYPE_P2P_GO;
618 }
619
620 static bool brcmf_is_ibssmode(struct brcmf_cfg80211_vif *vif)
621 {
622 return vif->wdev.iftype == NL80211_IFTYPE_ADHOC;
623 }
624
625 static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
626 const char *name,
627 enum nl80211_iftype type,
628 u32 *flags,
629 struct vif_params *params)
630 {
631 struct wireless_dev *wdev;
632
633 brcmf_dbg(TRACE, "enter: %s type %d\n", name, type);
634 switch (type) {
635 case NL80211_IFTYPE_ADHOC:
636 case NL80211_IFTYPE_STATION:
637 case NL80211_IFTYPE_AP_VLAN:
638 case NL80211_IFTYPE_WDS:
639 case NL80211_IFTYPE_MONITOR:
640 case NL80211_IFTYPE_MESH_POINT:
641 return ERR_PTR(-EOPNOTSUPP);
642 case NL80211_IFTYPE_AP:
643 wdev = brcmf_ap_add_vif(wiphy, name, flags, params);
644 if (!IS_ERR(wdev))
645 brcmf_cfg80211_update_proto_addr_mode(wdev);
646 return wdev;
647 case NL80211_IFTYPE_P2P_CLIENT:
648 case NL80211_IFTYPE_P2P_GO:
649 case NL80211_IFTYPE_P2P_DEVICE:
650 wdev = brcmf_p2p_add_vif(wiphy, name, type, flags, params);
651 if (!IS_ERR(wdev))
652 brcmf_cfg80211_update_proto_addr_mode(wdev);
653 return wdev;
654 case NL80211_IFTYPE_UNSPECIFIED:
655 default:
656 return ERR_PTR(-EINVAL);
657 }
658 }
659
660 static void brcmf_scan_config_mpc(struct brcmf_if *ifp, int mpc)
661 {
662 if (brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_NEED_MPC))
663 brcmf_set_mpc(ifp, mpc);
664 }
665
666 void brcmf_set_mpc(struct brcmf_if *ifp, int mpc)
667 {
668 s32 err = 0;
669
670 if (check_vif_up(ifp->vif)) {
671 err = brcmf_fil_iovar_int_set(ifp, "mpc", mpc);
672 if (err) {
673 brcmf_err("fail to set mpc\n");
674 return;
675 }
676 brcmf_dbg(INFO, "MPC : %d\n", mpc);
677 }
678 }
679
680 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
681 struct brcmf_if *ifp, bool aborted,
682 bool fw_abort)
683 {
684 struct brcmf_scan_params_le params_le;
685 struct cfg80211_scan_request *scan_request;
686 s32 err = 0;
687
688 brcmf_dbg(SCAN, "Enter\n");
689
690 /* clear scan request, because the FW abort can cause a second call */
691 /* to this functon and might cause a double cfg80211_scan_done */
692 scan_request = cfg->scan_request;
693 cfg->scan_request = NULL;
694
695 if (timer_pending(&cfg->escan_timeout))
696 del_timer_sync(&cfg->escan_timeout);
697
698 if (fw_abort) {
699 /* Do a scan abort to stop the driver's scan engine */
700 brcmf_dbg(SCAN, "ABORT scan in firmware\n");
701 memset(&params_le, 0, sizeof(params_le));
702 memset(params_le.bssid, 0xFF, ETH_ALEN);
703 params_le.bss_type = DOT11_BSSTYPE_ANY;
704 params_le.scan_type = 0;
705 params_le.channel_num = cpu_to_le32(1);
706 params_le.nprobes = cpu_to_le32(1);
707 params_le.active_time = cpu_to_le32(-1);
708 params_le.passive_time = cpu_to_le32(-1);
709 params_le.home_time = cpu_to_le32(-1);
710 /* Scan is aborted by setting channel_list[0] to -1 */
711 params_le.channel_list[0] = cpu_to_le16(-1);
712 /* E-Scan (or anyother type) can be aborted by SCAN */
713 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
714 &params_le, sizeof(params_le));
715 if (err)
716 brcmf_err("Scan abort failed\n");
717 }
718
719 brcmf_scan_config_mpc(ifp, 1);
720
721 /*
722 * e-scan can be initiated by scheduled scan
723 * which takes precedence.
724 */
725 if (cfg->sched_escan) {
726 brcmf_dbg(SCAN, "scheduled scan completed\n");
727 cfg->sched_escan = false;
728 if (!aborted)
729 cfg80211_sched_scan_results(cfg_to_wiphy(cfg));
730 } else if (scan_request) {
731 brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n",
732 aborted ? "Aborted" : "Done");
733 cfg80211_scan_done(scan_request, aborted);
734 }
735 if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
736 brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n");
737
738 return err;
739 }
740
741 static
742 int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
743 {
744 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
745 struct net_device *ndev = wdev->netdev;
746
747 /* vif event pending in firmware */
748 if (brcmf_cfg80211_vif_event_armed(cfg))
749 return -EBUSY;
750
751 if (ndev) {
752 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status) &&
753 cfg->escan_info.ifp == netdev_priv(ndev))
754 brcmf_notify_escan_complete(cfg, netdev_priv(ndev),
755 true, true);
756
757 brcmf_fil_iovar_int_set(netdev_priv(ndev), "mpc", 1);
758 }
759
760 switch (wdev->iftype) {
761 case NL80211_IFTYPE_ADHOC:
762 case NL80211_IFTYPE_STATION:
763 case NL80211_IFTYPE_AP:
764 case NL80211_IFTYPE_AP_VLAN:
765 case NL80211_IFTYPE_WDS:
766 case NL80211_IFTYPE_MONITOR:
767 case NL80211_IFTYPE_MESH_POINT:
768 return -EOPNOTSUPP;
769 case NL80211_IFTYPE_P2P_CLIENT:
770 case NL80211_IFTYPE_P2P_GO:
771 case NL80211_IFTYPE_P2P_DEVICE:
772 return brcmf_p2p_del_vif(wiphy, wdev);
773 case NL80211_IFTYPE_UNSPECIFIED:
774 default:
775 return -EINVAL;
776 }
777 return -EOPNOTSUPP;
778 }
779
780 static s32
781 brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
782 enum nl80211_iftype type, u32 *flags,
783 struct vif_params *params)
784 {
785 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
786 struct brcmf_if *ifp = netdev_priv(ndev);
787 struct brcmf_cfg80211_vif *vif = ifp->vif;
788 s32 infra = 0;
789 s32 ap = 0;
790 s32 err = 0;
791
792 brcmf_dbg(TRACE, "Enter, ndev=%p, type=%d\n", ndev, type);
793
794 switch (type) {
795 case NL80211_IFTYPE_MONITOR:
796 case NL80211_IFTYPE_WDS:
797 brcmf_err("type (%d) : currently we do not support this type\n",
798 type);
799 return -EOPNOTSUPP;
800 case NL80211_IFTYPE_ADHOC:
801 infra = 0;
802 break;
803 case NL80211_IFTYPE_STATION:
804 /* Ignore change for p2p IF. Unclear why supplicant does this */
805 if ((vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) ||
806 (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO)) {
807 brcmf_dbg(TRACE, "Ignoring cmd for p2p if\n");
808 /* WAR: It is unexpected to get a change of VIF for P2P
809 * IF, but it happens. The request can not be handled
810 * but returning EPERM causes a crash. Returning 0
811 * without setting ieee80211_ptr->iftype causes trace
812 * (WARN_ON) but it works with wpa_supplicant
813 */
814 return 0;
815 }
816 infra = 1;
817 break;
818 case NL80211_IFTYPE_AP:
819 case NL80211_IFTYPE_P2P_GO:
820 ap = 1;
821 break;
822 default:
823 err = -EINVAL;
824 goto done;
825 }
826
827 if (ap) {
828 if (type == NL80211_IFTYPE_P2P_GO) {
829 brcmf_dbg(INFO, "IF Type = P2P GO\n");
830 err = brcmf_p2p_ifchange(cfg, BRCMF_FIL_P2P_IF_GO);
831 }
832 if (!err) {
833 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &vif->sme_state);
834 brcmf_dbg(INFO, "IF Type = AP\n");
835 }
836 } else {
837 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, infra);
838 if (err) {
839 brcmf_err("WLC_SET_INFRA error (%d)\n", err);
840 err = -EAGAIN;
841 goto done;
842 }
843 brcmf_dbg(INFO, "IF Type = %s\n", brcmf_is_ibssmode(vif) ?
844 "Adhoc" : "Infra");
845 }
846 ndev->ieee80211_ptr->iftype = type;
847
848 brcmf_cfg80211_update_proto_addr_mode(&vif->wdev);
849
850 done:
851 brcmf_dbg(TRACE, "Exit\n");
852
853 return err;
854 }
855
856 static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
857 struct brcmf_scan_params_le *params_le,
858 struct cfg80211_scan_request *request)
859 {
860 u32 n_ssids;
861 u32 n_channels;
862 s32 i;
863 s32 offset;
864 u16 chanspec;
865 char *ptr;
866 struct brcmf_ssid_le ssid_le;
867
868 memset(params_le->bssid, 0xFF, ETH_ALEN);
869 params_le->bss_type = DOT11_BSSTYPE_ANY;
870 params_le->scan_type = 0;
871 params_le->channel_num = 0;
872 params_le->nprobes = cpu_to_le32(-1);
873 params_le->active_time = cpu_to_le32(-1);
874 params_le->passive_time = cpu_to_le32(-1);
875 params_le->home_time = cpu_to_le32(-1);
876 memset(&params_le->ssid_le, 0, sizeof(params_le->ssid_le));
877
878 /* if request is null exit so it will be all channel broadcast scan */
879 if (!request)
880 return;
881
882 n_ssids = request->n_ssids;
883 n_channels = request->n_channels;
884 /* Copy channel array if applicable */
885 brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n",
886 n_channels);
887 if (n_channels > 0) {
888 for (i = 0; i < n_channels; i++) {
889 chanspec = channel_to_chanspec(&cfg->d11inf,
890 request->channels[i]);
891 brcmf_dbg(SCAN, "Chan : %d, Channel spec: %x\n",
892 request->channels[i]->hw_value, chanspec);
893 params_le->channel_list[i] = cpu_to_le16(chanspec);
894 }
895 } else {
896 brcmf_dbg(SCAN, "Scanning all channels\n");
897 }
898 /* Copy ssid array if applicable */
899 brcmf_dbg(SCAN, "### List of SSIDs to scan ### %d\n", n_ssids);
900 if (n_ssids > 0) {
901 offset = offsetof(struct brcmf_scan_params_le, channel_list) +
902 n_channels * sizeof(u16);
903 offset = roundup(offset, sizeof(u32));
904 ptr = (char *)params_le + offset;
905 for (i = 0; i < n_ssids; i++) {
906 memset(&ssid_le, 0, sizeof(ssid_le));
907 ssid_le.SSID_len =
908 cpu_to_le32(request->ssids[i].ssid_len);
909 memcpy(ssid_le.SSID, request->ssids[i].ssid,
910 request->ssids[i].ssid_len);
911 if (!ssid_le.SSID_len)
912 brcmf_dbg(SCAN, "%d: Broadcast scan\n", i);
913 else
914 brcmf_dbg(SCAN, "%d: scan for %s size =%d\n",
915 i, ssid_le.SSID, ssid_le.SSID_len);
916 memcpy(ptr, &ssid_le, sizeof(ssid_le));
917 ptr += sizeof(ssid_le);
918 }
919 } else {
920 brcmf_dbg(SCAN, "Broadcast scan %p\n", request->ssids);
921 if ((request->ssids) && request->ssids->ssid_len) {
922 brcmf_dbg(SCAN, "SSID %s len=%d\n",
923 params_le->ssid_le.SSID,
924 request->ssids->ssid_len);
925 params_le->ssid_le.SSID_len =
926 cpu_to_le32(request->ssids->ssid_len);
927 memcpy(&params_le->ssid_le.SSID, request->ssids->ssid,
928 request->ssids->ssid_len);
929 }
930 }
931 /* Adding mask to channel numbers */
932 params_le->channel_num =
933 cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) |
934 (n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK));
935 }
936
937 static s32
938 brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
939 struct cfg80211_scan_request *request, u16 action)
940 {
941 s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
942 offsetof(struct brcmf_escan_params_le, params_le);
943 struct brcmf_escan_params_le *params;
944 s32 err = 0;
945
946 brcmf_dbg(SCAN, "E-SCAN START\n");
947
948 if (request != NULL) {
949 /* Allocate space for populating ssids in struct */
950 params_size += sizeof(u32) * ((request->n_channels + 1) / 2);
951
952 /* Allocate space for populating ssids in struct */
953 params_size += sizeof(struct brcmf_ssid) * request->n_ssids;
954 }
955
956 params = kzalloc(params_size, GFP_KERNEL);
957 if (!params) {
958 err = -ENOMEM;
959 goto exit;
960 }
961 BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN);
962 brcmf_escan_prep(cfg, &params->params_le, request);
963 params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
964 params->action = cpu_to_le16(action);
965 params->sync_id = cpu_to_le16(0x1234);
966
967 err = brcmf_fil_iovar_data_set(ifp, "escan", params, params_size);
968 if (err) {
969 if (err == -EBUSY)
970 brcmf_dbg(INFO, "system busy : escan canceled\n");
971 else
972 brcmf_err("error (%d)\n", err);
973 }
974
975 kfree(params);
976 exit:
977 return err;
978 }
979
980 static s32
981 brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
982 struct brcmf_if *ifp, struct cfg80211_scan_request *request)
983 {
984 s32 err;
985 u32 passive_scan;
986 struct brcmf_scan_results *results;
987 struct escan_info *escan = &cfg->escan_info;
988
989 brcmf_dbg(SCAN, "Enter\n");
990 escan->ifp = ifp;
991 escan->wiphy = wiphy;
992 escan->escan_state = WL_ESCAN_STATE_SCANNING;
993 passive_scan = cfg->active_scan ? 0 : 1;
994 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
995 passive_scan);
996 if (err) {
997 brcmf_err("error (%d)\n", err);
998 return err;
999 }
1000 brcmf_scan_config_mpc(ifp, 0);
1001 results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
1002 results->version = 0;
1003 results->count = 0;
1004 results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE;
1005
1006 err = escan->run(cfg, ifp, request, WL_ESCAN_ACTION_START);
1007 if (err)
1008 brcmf_scan_config_mpc(ifp, 1);
1009 return err;
1010 }
1011
1012 static s32
1013 brcmf_cfg80211_escan(struct wiphy *wiphy, struct brcmf_cfg80211_vif *vif,
1014 struct cfg80211_scan_request *request,
1015 struct cfg80211_ssid *this_ssid)
1016 {
1017 struct brcmf_if *ifp = vif->ifp;
1018 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1019 struct cfg80211_ssid *ssids;
1020 struct brcmf_cfg80211_scan_req *sr = &cfg->scan_req_int;
1021 u32 passive_scan;
1022 bool escan_req;
1023 bool spec_scan;
1024 s32 err;
1025 u32 SSID_len;
1026
1027 brcmf_dbg(SCAN, "START ESCAN\n");
1028
1029 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
1030 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
1031 return -EAGAIN;
1032 }
1033 if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) {
1034 brcmf_err("Scanning being aborted: status (%lu)\n",
1035 cfg->scan_status);
1036 return -EAGAIN;
1037 }
1038 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
1039 brcmf_err("Scanning suppressed: status (%lu)\n",
1040 cfg->scan_status);
1041 return -EAGAIN;
1042 }
1043 if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) {
1044 brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state);
1045 return -EAGAIN;
1046 }
1047
1048 /* If scan req comes for p2p0, send it over primary I/F */
1049 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
1050 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
1051
1052 /* Arm scan timeout timer */
1053 mod_timer(&cfg->escan_timeout, jiffies +
1054 WL_ESCAN_TIMER_INTERVAL_MS * HZ / 1000);
1055
1056 escan_req = false;
1057 if (request) {
1058 /* scan bss */
1059 ssids = request->ssids;
1060 escan_req = true;
1061 } else {
1062 /* scan in ibss */
1063 /* we don't do escan in ibss */
1064 ssids = this_ssid;
1065 }
1066
1067 cfg->scan_request = request;
1068 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1069 if (escan_req) {
1070 cfg->escan_info.run = brcmf_run_escan;
1071 err = brcmf_p2p_scan_prep(wiphy, request, vif);
1072 if (err)
1073 goto scan_out;
1074
1075 err = brcmf_do_escan(cfg, wiphy, vif->ifp, request);
1076 if (err)
1077 goto scan_out;
1078 } else {
1079 brcmf_dbg(SCAN, "ssid \"%s\", ssid_len (%d)\n",
1080 ssids->ssid, ssids->ssid_len);
1081 memset(&sr->ssid_le, 0, sizeof(sr->ssid_le));
1082 SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len);
1083 sr->ssid_le.SSID_len = cpu_to_le32(0);
1084 spec_scan = false;
1085 if (SSID_len) {
1086 memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len);
1087 sr->ssid_le.SSID_len = cpu_to_le32(SSID_len);
1088 spec_scan = true;
1089 } else
1090 brcmf_dbg(SCAN, "Broadcast scan\n");
1091
1092 passive_scan = cfg->active_scan ? 0 : 1;
1093 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
1094 passive_scan);
1095 if (err) {
1096 brcmf_err("WLC_SET_PASSIVE_SCAN error (%d)\n", err);
1097 goto scan_out;
1098 }
1099 brcmf_scan_config_mpc(ifp, 0);
1100 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
1101 &sr->ssid_le, sizeof(sr->ssid_le));
1102 if (err) {
1103 if (err == -EBUSY)
1104 brcmf_dbg(INFO, "BUSY: scan for \"%s\" canceled\n",
1105 sr->ssid_le.SSID);
1106 else
1107 brcmf_err("WLC_SCAN error (%d)\n", err);
1108
1109 brcmf_scan_config_mpc(ifp, 1);
1110 goto scan_out;
1111 }
1112 }
1113
1114 return 0;
1115
1116 scan_out:
1117 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1118 if (timer_pending(&cfg->escan_timeout))
1119 del_timer_sync(&cfg->escan_timeout);
1120 cfg->scan_request = NULL;
1121 return err;
1122 }
1123
1124 static s32
1125 brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
1126 {
1127 struct brcmf_cfg80211_vif *vif;
1128 s32 err = 0;
1129
1130 brcmf_dbg(TRACE, "Enter\n");
1131 vif = container_of(request->wdev, struct brcmf_cfg80211_vif, wdev);
1132 if (!check_vif_up(vif))
1133 return -EIO;
1134
1135 err = brcmf_cfg80211_escan(wiphy, vif, request, NULL);
1136
1137 if (err)
1138 brcmf_err("scan error (%d)\n", err);
1139
1140 brcmf_dbg(TRACE, "Exit\n");
1141 return err;
1142 }
1143
1144 static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold)
1145 {
1146 s32 err = 0;
1147
1148 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "rtsthresh",
1149 rts_threshold);
1150 if (err)
1151 brcmf_err("Error (%d)\n", err);
1152
1153 return err;
1154 }
1155
1156 static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold)
1157 {
1158 s32 err = 0;
1159
1160 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "fragthresh",
1161 frag_threshold);
1162 if (err)
1163 brcmf_err("Error (%d)\n", err);
1164
1165 return err;
1166 }
1167
1168 static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
1169 {
1170 s32 err = 0;
1171 u32 cmd = (l ? BRCMF_C_SET_LRL : BRCMF_C_SET_SRL);
1172
1173 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), cmd, retry);
1174 if (err) {
1175 brcmf_err("cmd (%d) , error (%d)\n", cmd, err);
1176 return err;
1177 }
1178 return err;
1179 }
1180
1181 static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1182 {
1183 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1184 struct net_device *ndev = cfg_to_ndev(cfg);
1185 struct brcmf_if *ifp = netdev_priv(ndev);
1186 s32 err = 0;
1187
1188 brcmf_dbg(TRACE, "Enter\n");
1189 if (!check_vif_up(ifp->vif))
1190 return -EIO;
1191
1192 if (changed & WIPHY_PARAM_RTS_THRESHOLD &&
1193 (cfg->conf->rts_threshold != wiphy->rts_threshold)) {
1194 cfg->conf->rts_threshold = wiphy->rts_threshold;
1195 err = brcmf_set_rts(ndev, cfg->conf->rts_threshold);
1196 if (!err)
1197 goto done;
1198 }
1199 if (changed & WIPHY_PARAM_FRAG_THRESHOLD &&
1200 (cfg->conf->frag_threshold != wiphy->frag_threshold)) {
1201 cfg->conf->frag_threshold = wiphy->frag_threshold;
1202 err = brcmf_set_frag(ndev, cfg->conf->frag_threshold);
1203 if (!err)
1204 goto done;
1205 }
1206 if (changed & WIPHY_PARAM_RETRY_LONG
1207 && (cfg->conf->retry_long != wiphy->retry_long)) {
1208 cfg->conf->retry_long = wiphy->retry_long;
1209 err = brcmf_set_retry(ndev, cfg->conf->retry_long, true);
1210 if (!err)
1211 goto done;
1212 }
1213 if (changed & WIPHY_PARAM_RETRY_SHORT
1214 && (cfg->conf->retry_short != wiphy->retry_short)) {
1215 cfg->conf->retry_short = wiphy->retry_short;
1216 err = brcmf_set_retry(ndev, cfg->conf->retry_short, false);
1217 if (!err)
1218 goto done;
1219 }
1220
1221 done:
1222 brcmf_dbg(TRACE, "Exit\n");
1223 return err;
1224 }
1225
1226 static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof)
1227 {
1228 memset(prof, 0, sizeof(*prof));
1229 }
1230
1231 static void brcmf_link_down(struct brcmf_cfg80211_vif *vif)
1232 {
1233 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy);
1234 s32 err = 0;
1235
1236 brcmf_dbg(TRACE, "Enter\n");
1237
1238 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state)) {
1239 brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n ");
1240 err = brcmf_fil_cmd_data_set(vif->ifp,
1241 BRCMF_C_DISASSOC, NULL, 0);
1242 if (err) {
1243 brcmf_err("WLC_DISASSOC failed (%d)\n", err);
1244 }
1245 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state);
1246 cfg80211_disconnected(vif->wdev.netdev, 0, NULL, 0, GFP_KERNEL);
1247
1248 }
1249 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state);
1250 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
1251 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
1252 brcmf_dbg(TRACE, "Exit\n");
1253 }
1254
1255 static s32
1256 brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
1257 struct cfg80211_ibss_params *params)
1258 {
1259 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1260 struct brcmf_if *ifp = netdev_priv(ndev);
1261 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1262 struct brcmf_join_params join_params;
1263 size_t join_params_size = 0;
1264 s32 err = 0;
1265 s32 wsec = 0;
1266 s32 bcnprd;
1267 u16 chanspec;
1268
1269 brcmf_dbg(TRACE, "Enter\n");
1270 if (!check_vif_up(ifp->vif))
1271 return -EIO;
1272
1273 if (params->ssid)
1274 brcmf_dbg(CONN, "SSID: %s\n", params->ssid);
1275 else {
1276 brcmf_dbg(CONN, "SSID: NULL, Not supported\n");
1277 return -EOPNOTSUPP;
1278 }
1279
1280 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1281
1282 if (params->bssid)
1283 brcmf_dbg(CONN, "BSSID: %pM\n", params->bssid);
1284 else
1285 brcmf_dbg(CONN, "No BSSID specified\n");
1286
1287 if (params->chandef.chan)
1288 brcmf_dbg(CONN, "channel: %d\n",
1289 params->chandef.chan->center_freq);
1290 else
1291 brcmf_dbg(CONN, "no channel specified\n");
1292
1293 if (params->channel_fixed)
1294 brcmf_dbg(CONN, "fixed channel required\n");
1295 else
1296 brcmf_dbg(CONN, "no fixed channel required\n");
1297
1298 if (params->ie && params->ie_len)
1299 brcmf_dbg(CONN, "ie len: %d\n", params->ie_len);
1300 else
1301 brcmf_dbg(CONN, "no ie specified\n");
1302
1303 if (params->beacon_interval)
1304 brcmf_dbg(CONN, "beacon interval: %d\n",
1305 params->beacon_interval);
1306 else
1307 brcmf_dbg(CONN, "no beacon interval specified\n");
1308
1309 if (params->basic_rates)
1310 brcmf_dbg(CONN, "basic rates: %08X\n", params->basic_rates);
1311 else
1312 brcmf_dbg(CONN, "no basic rates specified\n");
1313
1314 if (params->privacy)
1315 brcmf_dbg(CONN, "privacy required\n");
1316 else
1317 brcmf_dbg(CONN, "no privacy required\n");
1318
1319 /* Configure Privacy for starter */
1320 if (params->privacy)
1321 wsec |= WEP_ENABLED;
1322
1323 err = brcmf_fil_iovar_int_set(ifp, "wsec", wsec);
1324 if (err) {
1325 brcmf_err("wsec failed (%d)\n", err);
1326 goto done;
1327 }
1328
1329 /* Configure Beacon Interval for starter */
1330 if (params->beacon_interval)
1331 bcnprd = params->beacon_interval;
1332 else
1333 bcnprd = 100;
1334
1335 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, bcnprd);
1336 if (err) {
1337 brcmf_err("WLC_SET_BCNPRD failed (%d)\n", err);
1338 goto done;
1339 }
1340
1341 /* Configure required join parameter */
1342 memset(&join_params, 0, sizeof(struct brcmf_join_params));
1343
1344 /* SSID */
1345 profile->ssid.SSID_len = min_t(u32, params->ssid_len, 32);
1346 memcpy(profile->ssid.SSID, params->ssid, profile->ssid.SSID_len);
1347 memcpy(join_params.ssid_le.SSID, params->ssid, profile->ssid.SSID_len);
1348 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1349 join_params_size = sizeof(join_params.ssid_le);
1350
1351 /* BSSID */
1352 if (params->bssid) {
1353 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN);
1354 join_params_size = sizeof(join_params.ssid_le) +
1355 BRCMF_ASSOC_PARAMS_FIXED_SIZE;
1356 memcpy(profile->bssid, params->bssid, ETH_ALEN);
1357 } else {
1358 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1359 memset(profile->bssid, 0, ETH_ALEN);
1360 }
1361
1362 /* Channel */
1363 if (params->chandef.chan) {
1364 u32 target_channel;
1365
1366 cfg->channel =
1367 ieee80211_frequency_to_channel(
1368 params->chandef.chan->center_freq);
1369 if (params->channel_fixed) {
1370 /* adding chanspec */
1371 chanspec = chandef_to_chanspec(&cfg->d11inf,
1372 &params->chandef);
1373 join_params.params_le.chanspec_list[0] =
1374 cpu_to_le16(chanspec);
1375 join_params.params_le.chanspec_num = cpu_to_le32(1);
1376 join_params_size += sizeof(join_params.params_le);
1377 }
1378
1379 /* set channel for starter */
1380 target_channel = cfg->channel;
1381 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_CHANNEL,
1382 target_channel);
1383 if (err) {
1384 brcmf_err("WLC_SET_CHANNEL failed (%d)\n", err);
1385 goto done;
1386 }
1387 } else
1388 cfg->channel = 0;
1389
1390 cfg->ibss_starter = false;
1391
1392
1393 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1394 &join_params, join_params_size);
1395 if (err) {
1396 brcmf_err("WLC_SET_SSID failed (%d)\n", err);
1397 goto done;
1398 }
1399
1400 done:
1401 if (err)
1402 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1403 brcmf_dbg(TRACE, "Exit\n");
1404 return err;
1405 }
1406
1407 static s32
1408 brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
1409 {
1410 struct brcmf_if *ifp = netdev_priv(ndev);
1411
1412 brcmf_dbg(TRACE, "Enter\n");
1413 if (!check_vif_up(ifp->vif))
1414 return -EIO;
1415
1416 brcmf_link_down(ifp->vif);
1417
1418 brcmf_dbg(TRACE, "Exit\n");
1419
1420 return 0;
1421 }
1422
1423 static s32 brcmf_set_wpa_version(struct net_device *ndev,
1424 struct cfg80211_connect_params *sme)
1425 {
1426 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1427 struct brcmf_cfg80211_security *sec;
1428 s32 val = 0;
1429 s32 err = 0;
1430
1431 if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1)
1432 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED;
1433 else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)
1434 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED;
1435 else
1436 val = WPA_AUTH_DISABLED;
1437 brcmf_dbg(CONN, "setting wpa_auth to 0x%0x\n", val);
1438 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val);
1439 if (err) {
1440 brcmf_err("set wpa_auth failed (%d)\n", err);
1441 return err;
1442 }
1443 sec = &profile->sec;
1444 sec->wpa_versions = sme->crypto.wpa_versions;
1445 return err;
1446 }
1447
1448 static s32 brcmf_set_auth_type(struct net_device *ndev,
1449 struct cfg80211_connect_params *sme)
1450 {
1451 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1452 struct brcmf_cfg80211_security *sec;
1453 s32 val = 0;
1454 s32 err = 0;
1455
1456 switch (sme->auth_type) {
1457 case NL80211_AUTHTYPE_OPEN_SYSTEM:
1458 val = 0;
1459 brcmf_dbg(CONN, "open system\n");
1460 break;
1461 case NL80211_AUTHTYPE_SHARED_KEY:
1462 val = 1;
1463 brcmf_dbg(CONN, "shared key\n");
1464 break;
1465 case NL80211_AUTHTYPE_AUTOMATIC:
1466 val = 2;
1467 brcmf_dbg(CONN, "automatic\n");
1468 break;
1469 case NL80211_AUTHTYPE_NETWORK_EAP:
1470 brcmf_dbg(CONN, "network eap\n");
1471 default:
1472 val = 2;
1473 brcmf_err("invalid auth type (%d)\n", sme->auth_type);
1474 break;
1475 }
1476
1477 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1478 if (err) {
1479 brcmf_err("set auth failed (%d)\n", err);
1480 return err;
1481 }
1482 sec = &profile->sec;
1483 sec->auth_type = sme->auth_type;
1484 return err;
1485 }
1486
1487 static s32
1488 brcmf_set_wsec_mode(struct net_device *ndev,
1489 struct cfg80211_connect_params *sme, bool mfp)
1490 {
1491 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1492 struct brcmf_cfg80211_security *sec;
1493 s32 pval = 0;
1494 s32 gval = 0;
1495 s32 wsec;
1496 s32 err = 0;
1497
1498 if (sme->crypto.n_ciphers_pairwise) {
1499 switch (sme->crypto.ciphers_pairwise[0]) {
1500 case WLAN_CIPHER_SUITE_WEP40:
1501 case WLAN_CIPHER_SUITE_WEP104:
1502 pval = WEP_ENABLED;
1503 break;
1504 case WLAN_CIPHER_SUITE_TKIP:
1505 pval = TKIP_ENABLED;
1506 break;
1507 case WLAN_CIPHER_SUITE_CCMP:
1508 pval = AES_ENABLED;
1509 break;
1510 case WLAN_CIPHER_SUITE_AES_CMAC:
1511 pval = AES_ENABLED;
1512 break;
1513 default:
1514 brcmf_err("invalid cipher pairwise (%d)\n",
1515 sme->crypto.ciphers_pairwise[0]);
1516 return -EINVAL;
1517 }
1518 }
1519 if (sme->crypto.cipher_group) {
1520 switch (sme->crypto.cipher_group) {
1521 case WLAN_CIPHER_SUITE_WEP40:
1522 case WLAN_CIPHER_SUITE_WEP104:
1523 gval = WEP_ENABLED;
1524 break;
1525 case WLAN_CIPHER_SUITE_TKIP:
1526 gval = TKIP_ENABLED;
1527 break;
1528 case WLAN_CIPHER_SUITE_CCMP:
1529 gval = AES_ENABLED;
1530 break;
1531 case WLAN_CIPHER_SUITE_AES_CMAC:
1532 gval = AES_ENABLED;
1533 break;
1534 default:
1535 brcmf_err("invalid cipher group (%d)\n",
1536 sme->crypto.cipher_group);
1537 return -EINVAL;
1538 }
1539 }
1540
1541 brcmf_dbg(CONN, "pval (%d) gval (%d)\n", pval, gval);
1542 /* In case of privacy, but no security and WPS then simulate */
1543 /* setting AES. WPS-2.0 allows no security */
1544 if (brcmf_find_wpsie(sme->ie, sme->ie_len) && !pval && !gval &&
1545 sme->privacy)
1546 pval = AES_ENABLED;
1547
1548 if (mfp)
1549 wsec = pval | gval | MFP_CAPABLE;
1550 else
1551 wsec = pval | gval;
1552 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wsec", wsec);
1553 if (err) {
1554 brcmf_err("error (%d)\n", err);
1555 return err;
1556 }
1557
1558 sec = &profile->sec;
1559 sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0];
1560 sec->cipher_group = sme->crypto.cipher_group;
1561
1562 return err;
1563 }
1564
1565 static s32
1566 brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
1567 {
1568 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1569 struct brcmf_cfg80211_security *sec;
1570 s32 val = 0;
1571 s32 err = 0;
1572
1573 if (sme->crypto.n_akm_suites) {
1574 err = brcmf_fil_bsscfg_int_get(netdev_priv(ndev),
1575 "wpa_auth", &val);
1576 if (err) {
1577 brcmf_err("could not get wpa_auth (%d)\n", err);
1578 return err;
1579 }
1580 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) {
1581 switch (sme->crypto.akm_suites[0]) {
1582 case WLAN_AKM_SUITE_8021X:
1583 val = WPA_AUTH_UNSPECIFIED;
1584 break;
1585 case WLAN_AKM_SUITE_PSK:
1586 val = WPA_AUTH_PSK;
1587 break;
1588 default:
1589 brcmf_err("invalid cipher group (%d)\n",
1590 sme->crypto.cipher_group);
1591 return -EINVAL;
1592 }
1593 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) {
1594 switch (sme->crypto.akm_suites[0]) {
1595 case WLAN_AKM_SUITE_8021X:
1596 val = WPA2_AUTH_UNSPECIFIED;
1597 break;
1598 case WLAN_AKM_SUITE_PSK:
1599 val = WPA2_AUTH_PSK;
1600 break;
1601 default:
1602 brcmf_err("invalid cipher group (%d)\n",
1603 sme->crypto.cipher_group);
1604 return -EINVAL;
1605 }
1606 }
1607
1608 brcmf_dbg(CONN, "setting wpa_auth to %d\n", val);
1609 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev),
1610 "wpa_auth", val);
1611 if (err) {
1612 brcmf_err("could not set wpa_auth (%d)\n", err);
1613 return err;
1614 }
1615 }
1616 sec = &profile->sec;
1617 sec->wpa_auth = sme->crypto.akm_suites[0];
1618
1619 return err;
1620 }
1621
1622 static s32
1623 brcmf_set_sharedkey(struct net_device *ndev,
1624 struct cfg80211_connect_params *sme)
1625 {
1626 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1627 struct brcmf_cfg80211_security *sec;
1628 struct brcmf_wsec_key key;
1629 s32 val;
1630 s32 err = 0;
1631
1632 brcmf_dbg(CONN, "key len (%d)\n", sme->key_len);
1633
1634 if (sme->key_len == 0)
1635 return 0;
1636
1637 sec = &profile->sec;
1638 brcmf_dbg(CONN, "wpa_versions 0x%x cipher_pairwise 0x%x\n",
1639 sec->wpa_versions, sec->cipher_pairwise);
1640
1641 if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2))
1642 return 0;
1643
1644 if (!(sec->cipher_pairwise &
1645 (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)))
1646 return 0;
1647
1648 memset(&key, 0, sizeof(key));
1649 key.len = (u32) sme->key_len;
1650 key.index = (u32) sme->key_idx;
1651 if (key.len > sizeof(key.data)) {
1652 brcmf_err("Too long key length (%u)\n", key.len);
1653 return -EINVAL;
1654 }
1655 memcpy(key.data, sme->key, key.len);
1656 key.flags = BRCMF_PRIMARY_KEY;
1657 switch (sec->cipher_pairwise) {
1658 case WLAN_CIPHER_SUITE_WEP40:
1659 key.algo = CRYPTO_ALGO_WEP1;
1660 break;
1661 case WLAN_CIPHER_SUITE_WEP104:
1662 key.algo = CRYPTO_ALGO_WEP128;
1663 break;
1664 default:
1665 brcmf_err("Invalid algorithm (%d)\n",
1666 sme->crypto.ciphers_pairwise[0]);
1667 return -EINVAL;
1668 }
1669 /* Set the new key/index */
1670 brcmf_dbg(CONN, "key length (%d) key index (%d) algo (%d)\n",
1671 key.len, key.index, key.algo);
1672 brcmf_dbg(CONN, "key \"%s\"\n", key.data);
1673 err = send_key_to_dongle(ndev, &key);
1674 if (err)
1675 return err;
1676
1677 if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) {
1678 brcmf_dbg(CONN, "set auth_type to shared key\n");
1679 val = WL_AUTH_SHARED_KEY; /* shared key */
1680 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1681 if (err)
1682 brcmf_err("set auth failed (%d)\n", err);
1683 }
1684 return err;
1685 }
1686
1687 static
1688 enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp,
1689 enum nl80211_auth_type type)
1690 {
1691 if (type == NL80211_AUTHTYPE_AUTOMATIC &&
1692 brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_AUTO_AUTH)) {
1693 brcmf_dbg(CONN, "WAR: use OPEN instead of AUTO\n");
1694 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1695 }
1696 return type;
1697 }
1698
1699 static s32
1700 brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
1701 struct cfg80211_connect_params *sme)
1702 {
1703 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1704 struct brcmf_if *ifp = netdev_priv(ndev);
1705 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1706 struct ieee80211_channel *chan = sme->channel;
1707 struct brcmf_join_params join_params;
1708 size_t join_params_size;
1709 const struct brcmf_tlv *rsn_ie;
1710 const struct brcmf_vs_tlv *wpa_ie;
1711 const void *ie;
1712 u32 ie_len;
1713 struct brcmf_ext_join_params_le *ext_join_params;
1714 u16 chanspec;
1715 s32 err = 0;
1716
1717 brcmf_dbg(TRACE, "Enter\n");
1718 if (!check_vif_up(ifp->vif))
1719 return -EIO;
1720
1721 if (!sme->ssid) {
1722 brcmf_err("Invalid ssid\n");
1723 return -EOPNOTSUPP;
1724 }
1725
1726 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) {
1727 /* A normal (non P2P) connection request setup. */
1728 ie = NULL;
1729 ie_len = 0;
1730 /* find the WPA_IE */
1731 wpa_ie = brcmf_find_wpaie((u8 *)sme->ie, sme->ie_len);
1732 if (wpa_ie) {
1733 ie = wpa_ie;
1734 ie_len = wpa_ie->len + TLV_HDR_LEN;
1735 } else {
1736 /* find the RSN_IE */
1737 rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie,
1738 sme->ie_len,
1739 WLAN_EID_RSN);
1740 if (rsn_ie) {
1741 ie = rsn_ie;
1742 ie_len = rsn_ie->len + TLV_HDR_LEN;
1743 }
1744 }
1745 brcmf_fil_iovar_data_set(ifp, "wpaie", ie, ie_len);
1746 }
1747
1748 err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG,
1749 sme->ie, sme->ie_len);
1750 if (err)
1751 brcmf_err("Set Assoc REQ IE Failed\n");
1752 else
1753 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n");
1754
1755 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1756
1757 if (chan) {
1758 cfg->channel =
1759 ieee80211_frequency_to_channel(chan->center_freq);
1760 chanspec = channel_to_chanspec(&cfg->d11inf, chan);
1761 brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n",
1762 cfg->channel, chan->center_freq, chanspec);
1763 } else {
1764 cfg->channel = 0;
1765 chanspec = 0;
1766 }
1767
1768 brcmf_dbg(INFO, "ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len);
1769
1770 err = brcmf_set_wpa_version(ndev, sme);
1771 if (err) {
1772 brcmf_err("wl_set_wpa_version failed (%d)\n", err);
1773 goto done;
1774 }
1775
1776 sme->auth_type = brcmf_war_auth_type(ifp, sme->auth_type);
1777 err = brcmf_set_auth_type(ndev, sme);
1778 if (err) {
1779 brcmf_err("wl_set_auth_type failed (%d)\n", err);
1780 goto done;
1781 }
1782
1783 err = brcmf_set_wsec_mode(ndev, sme, sme->mfp == NL80211_MFP_REQUIRED);
1784 if (err) {
1785 brcmf_err("wl_set_set_cipher failed (%d)\n", err);
1786 goto done;
1787 }
1788
1789 err = brcmf_set_key_mgmt(ndev, sme);
1790 if (err) {
1791 brcmf_err("wl_set_key_mgmt failed (%d)\n", err);
1792 goto done;
1793 }
1794
1795 err = brcmf_set_sharedkey(ndev, sme);
1796 if (err) {
1797 brcmf_err("brcmf_set_sharedkey failed (%d)\n", err);
1798 goto done;
1799 }
1800
1801 profile->ssid.SSID_len = min_t(u32, (u32)sizeof(profile->ssid.SSID),
1802 (u32)sme->ssid_len);
1803 memcpy(&profile->ssid.SSID, sme->ssid, profile->ssid.SSID_len);
1804 if (profile->ssid.SSID_len < IEEE80211_MAX_SSID_LEN) {
1805 profile->ssid.SSID[profile->ssid.SSID_len] = 0;
1806 brcmf_dbg(CONN, "SSID \"%s\", len (%d)\n", profile->ssid.SSID,
1807 profile->ssid.SSID_len);
1808 }
1809
1810 /* Join with specific BSSID and cached SSID
1811 * If SSID is zero join based on BSSID only
1812 */
1813 join_params_size = offsetof(struct brcmf_ext_join_params_le, assoc_le) +
1814 offsetof(struct brcmf_assoc_params_le, chanspec_list);
1815 if (cfg->channel)
1816 join_params_size += sizeof(u16);
1817 ext_join_params = kzalloc(join_params_size, GFP_KERNEL);
1818 if (ext_join_params == NULL) {
1819 err = -ENOMEM;
1820 goto done;
1821 }
1822 ext_join_params->ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1823 memcpy(&ext_join_params->ssid_le.SSID, sme->ssid,
1824 profile->ssid.SSID_len);
1825
1826 /* Set up join scan parameters */
1827 ext_join_params->scan_le.scan_type = -1;
1828 ext_join_params->scan_le.home_time = cpu_to_le32(-1);
1829
1830 if (sme->bssid)
1831 memcpy(&ext_join_params->assoc_le.bssid, sme->bssid, ETH_ALEN);
1832 else
1833 memset(&ext_join_params->assoc_le.bssid, 0xFF, ETH_ALEN);
1834
1835 if (cfg->channel) {
1836 ext_join_params->assoc_le.chanspec_num = cpu_to_le32(1);
1837
1838 ext_join_params->assoc_le.chanspec_list[0] =
1839 cpu_to_le16(chanspec);
1840 /* Increase dwell time to receive probe response or detect
1841 * beacon from target AP at a noisy air only during connect
1842 * command.
1843 */
1844 ext_join_params->scan_le.active_time =
1845 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS);
1846 ext_join_params->scan_le.passive_time =
1847 cpu_to_le32(BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS);
1848 /* To sync with presence period of VSDB GO send probe request
1849 * more frequently. Probe request will be stopped when it gets
1850 * probe response from target AP/GO.
1851 */
1852 ext_join_params->scan_le.nprobes =
1853 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS /
1854 BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS);
1855 } else {
1856 ext_join_params->scan_le.active_time = cpu_to_le32(-1);
1857 ext_join_params->scan_le.passive_time = cpu_to_le32(-1);
1858 ext_join_params->scan_le.nprobes = cpu_to_le32(-1);
1859 }
1860
1861 err = brcmf_fil_bsscfg_data_set(ifp, "join", ext_join_params,
1862 join_params_size);
1863 kfree(ext_join_params);
1864 if (!err)
1865 /* This is it. join command worked, we are done */
1866 goto done;
1867
1868 /* join command failed, fallback to set ssid */
1869 memset(&join_params, 0, sizeof(join_params));
1870 join_params_size = sizeof(join_params.ssid_le);
1871
1872 memcpy(&join_params.ssid_le.SSID, sme->ssid, profile->ssid.SSID_len);
1873 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1874
1875 if (sme->bssid)
1876 memcpy(join_params.params_le.bssid, sme->bssid, ETH_ALEN);
1877 else
1878 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1879
1880 if (cfg->channel) {
1881 join_params.params_le.chanspec_list[0] = cpu_to_le16(chanspec);
1882 join_params.params_le.chanspec_num = cpu_to_le32(1);
1883 join_params_size += sizeof(join_params.params_le);
1884 }
1885 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1886 &join_params, join_params_size);
1887 if (err)
1888 brcmf_err("BRCMF_C_SET_SSID failed (%d)\n", err);
1889
1890 done:
1891 if (err)
1892 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1893 brcmf_dbg(TRACE, "Exit\n");
1894 return err;
1895 }
1896
1897 static s32
1898 brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
1899 u16 reason_code)
1900 {
1901 struct brcmf_if *ifp = netdev_priv(ndev);
1902 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1903 struct brcmf_scb_val_le scbval;
1904 s32 err = 0;
1905
1906 brcmf_dbg(TRACE, "Enter. Reason code = %d\n", reason_code);
1907 if (!check_vif_up(ifp->vif))
1908 return -EIO;
1909
1910 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
1911 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1912 cfg80211_disconnected(ndev, reason_code, NULL, 0, GFP_KERNEL);
1913
1914 memcpy(&scbval.ea, &profile->bssid, ETH_ALEN);
1915 scbval.val = cpu_to_le32(reason_code);
1916 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC,
1917 &scbval, sizeof(scbval));
1918 if (err)
1919 brcmf_err("error (%d)\n", err);
1920
1921 brcmf_dbg(TRACE, "Exit\n");
1922 return err;
1923 }
1924
1925 static s32
1926 brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
1927 enum nl80211_tx_power_setting type, s32 mbm)
1928 {
1929
1930 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1931 struct net_device *ndev = cfg_to_ndev(cfg);
1932 struct brcmf_if *ifp = netdev_priv(ndev);
1933 u16 txpwrmw;
1934 s32 err = 0;
1935 s32 disable = 0;
1936 s32 dbm = MBM_TO_DBM(mbm);
1937
1938 brcmf_dbg(TRACE, "Enter\n");
1939 if (!check_vif_up(ifp->vif))
1940 return -EIO;
1941
1942 switch (type) {
1943 case NL80211_TX_POWER_AUTOMATIC:
1944 break;
1945 case NL80211_TX_POWER_LIMITED:
1946 case NL80211_TX_POWER_FIXED:
1947 if (dbm < 0) {
1948 brcmf_err("TX_POWER_FIXED - dbm is negative\n");
1949 err = -EINVAL;
1950 goto done;
1951 }
1952 break;
1953 }
1954 /* Make sure radio is off or on as far as software is concerned */
1955 disable = WL_RADIO_SW_DISABLE << 16;
1956 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable);
1957 if (err)
1958 brcmf_err("WLC_SET_RADIO error (%d)\n", err);
1959
1960 if (dbm > 0xffff)
1961 txpwrmw = 0xffff;
1962 else
1963 txpwrmw = (u16) dbm;
1964 err = brcmf_fil_iovar_int_set(ifp, "qtxpower",
1965 (s32)brcmf_mw_to_qdbm(txpwrmw));
1966 if (err)
1967 brcmf_err("qtxpower error (%d)\n", err);
1968 cfg->conf->tx_power = dbm;
1969
1970 done:
1971 brcmf_dbg(TRACE, "Exit\n");
1972 return err;
1973 }
1974
1975 static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy,
1976 struct wireless_dev *wdev,
1977 s32 *dbm)
1978 {
1979 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1980 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
1981 s32 txpwrdbm;
1982 u8 result;
1983 s32 err = 0;
1984
1985 brcmf_dbg(TRACE, "Enter\n");
1986 if (!check_vif_up(ifp->vif))
1987 return -EIO;
1988
1989 err = brcmf_fil_iovar_int_get(ifp, "qtxpower", &txpwrdbm);
1990 if (err) {
1991 brcmf_err("error (%d)\n", err);
1992 goto done;
1993 }
1994
1995 result = (u8) (txpwrdbm & ~WL_TXPWR_OVERRIDE);
1996 *dbm = (s32) brcmf_qdbm_to_mw(result);
1997
1998 done:
1999 brcmf_dbg(TRACE, "Exit\n");
2000 return err;
2001 }
2002
2003 static s32
2004 brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev,
2005 u8 key_idx, bool unicast, bool multicast)
2006 {
2007 struct brcmf_if *ifp = netdev_priv(ndev);
2008 u32 index;
2009 u32 wsec;
2010 s32 err = 0;
2011
2012 brcmf_dbg(TRACE, "Enter\n");
2013 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2014 if (!check_vif_up(ifp->vif))
2015 return -EIO;
2016
2017 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2018 if (err) {
2019 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2020 goto done;
2021 }
2022
2023 if (wsec & WEP_ENABLED) {
2024 /* Just select a new current key */
2025 index = key_idx;
2026 err = brcmf_fil_cmd_int_set(ifp,
2027 BRCMF_C_SET_KEY_PRIMARY, index);
2028 if (err)
2029 brcmf_err("error (%d)\n", err);
2030 }
2031 done:
2032 brcmf_dbg(TRACE, "Exit\n");
2033 return err;
2034 }
2035
2036 static s32
2037 brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev,
2038 u8 key_idx, const u8 *mac_addr, struct key_params *params)
2039 {
2040 struct brcmf_if *ifp = netdev_priv(ndev);
2041 struct brcmf_wsec_key key;
2042 s32 err = 0;
2043 u8 keybuf[8];
2044
2045 memset(&key, 0, sizeof(key));
2046 key.index = (u32) key_idx;
2047 /* Instead of bcast for ea address for default wep keys,
2048 driver needs it to be Null */
2049 if (!is_multicast_ether_addr(mac_addr))
2050 memcpy((char *)&key.ea, (void *)mac_addr, ETH_ALEN);
2051 key.len = (u32) params->key_len;
2052 /* check for key index change */
2053 if (key.len == 0) {
2054 /* key delete */
2055 err = send_key_to_dongle(ndev, &key);
2056 if (err)
2057 brcmf_err("key delete error (%d)\n", err);
2058 } else {
2059 if (key.len > sizeof(key.data)) {
2060 brcmf_err("Invalid key length (%d)\n", key.len);
2061 return -EINVAL;
2062 }
2063
2064 brcmf_dbg(CONN, "Setting the key index %d\n", key.index);
2065 memcpy(key.data, params->key, key.len);
2066
2067 if (!brcmf_is_apmode(ifp->vif) &&
2068 (params->cipher == WLAN_CIPHER_SUITE_TKIP)) {
2069 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
2070 memcpy(keybuf, &key.data[24], sizeof(keybuf));
2071 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
2072 memcpy(&key.data[16], keybuf, sizeof(keybuf));
2073 }
2074
2075 /* if IW_ENCODE_EXT_RX_SEQ_VALID set */
2076 if (params->seq && params->seq_len == 6) {
2077 /* rx iv */
2078 u8 *ivptr;
2079 ivptr = (u8 *) params->seq;
2080 key.rxiv.hi = (ivptr[5] << 24) | (ivptr[4] << 16) |
2081 (ivptr[3] << 8) | ivptr[2];
2082 key.rxiv.lo = (ivptr[1] << 8) | ivptr[0];
2083 key.iv_initialized = true;
2084 }
2085
2086 switch (params->cipher) {
2087 case WLAN_CIPHER_SUITE_WEP40:
2088 key.algo = CRYPTO_ALGO_WEP1;
2089 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2090 break;
2091 case WLAN_CIPHER_SUITE_WEP104:
2092 key.algo = CRYPTO_ALGO_WEP128;
2093 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2094 break;
2095 case WLAN_CIPHER_SUITE_TKIP:
2096 key.algo = CRYPTO_ALGO_TKIP;
2097 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2098 break;
2099 case WLAN_CIPHER_SUITE_AES_CMAC:
2100 key.algo = CRYPTO_ALGO_AES_CCM;
2101 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2102 break;
2103 case WLAN_CIPHER_SUITE_CCMP:
2104 key.algo = CRYPTO_ALGO_AES_CCM;
2105 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2106 break;
2107 default:
2108 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2109 return -EINVAL;
2110 }
2111 err = send_key_to_dongle(ndev, &key);
2112 if (err)
2113 brcmf_err("wsec_key error (%d)\n", err);
2114 }
2115 return err;
2116 }
2117
2118 static s32
2119 brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
2120 u8 key_idx, bool pairwise, const u8 *mac_addr,
2121 struct key_params *params)
2122 {
2123 struct brcmf_if *ifp = netdev_priv(ndev);
2124 struct brcmf_wsec_key key;
2125 s32 val;
2126 s32 wsec;
2127 s32 err = 0;
2128 u8 keybuf[8];
2129
2130 brcmf_dbg(TRACE, "Enter\n");
2131 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2132 if (!check_vif_up(ifp->vif))
2133 return -EIO;
2134
2135 if (mac_addr &&
2136 (params->cipher != WLAN_CIPHER_SUITE_WEP40) &&
2137 (params->cipher != WLAN_CIPHER_SUITE_WEP104)) {
2138 brcmf_dbg(TRACE, "Exit");
2139 return brcmf_add_keyext(wiphy, ndev, key_idx, mac_addr, params);
2140 }
2141 memset(&key, 0, sizeof(key));
2142
2143 key.len = (u32) params->key_len;
2144 key.index = (u32) key_idx;
2145
2146 if (key.len > sizeof(key.data)) {
2147 brcmf_err("Too long key length (%u)\n", key.len);
2148 err = -EINVAL;
2149 goto done;
2150 }
2151 memcpy(key.data, params->key, key.len);
2152
2153 key.flags = BRCMF_PRIMARY_KEY;
2154 switch (params->cipher) {
2155 case WLAN_CIPHER_SUITE_WEP40:
2156 key.algo = CRYPTO_ALGO_WEP1;
2157 val = WEP_ENABLED;
2158 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2159 break;
2160 case WLAN_CIPHER_SUITE_WEP104:
2161 key.algo = CRYPTO_ALGO_WEP128;
2162 val = WEP_ENABLED;
2163 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2164 break;
2165 case WLAN_CIPHER_SUITE_TKIP:
2166 if (!brcmf_is_apmode(ifp->vif)) {
2167 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
2168 memcpy(keybuf, &key.data[24], sizeof(keybuf));
2169 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
2170 memcpy(&key.data[16], keybuf, sizeof(keybuf));
2171 }
2172 key.algo = CRYPTO_ALGO_TKIP;
2173 val = TKIP_ENABLED;
2174 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2175 break;
2176 case WLAN_CIPHER_SUITE_AES_CMAC:
2177 key.algo = CRYPTO_ALGO_AES_CCM;
2178 val = AES_ENABLED;
2179 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2180 break;
2181 case WLAN_CIPHER_SUITE_CCMP:
2182 key.algo = CRYPTO_ALGO_AES_CCM;
2183 val = AES_ENABLED;
2184 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2185 break;
2186 default:
2187 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2188 err = -EINVAL;
2189 goto done;
2190 }
2191
2192 err = send_key_to_dongle(ndev, &key);
2193 if (err)
2194 goto done;
2195
2196 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2197 if (err) {
2198 brcmf_err("get wsec error (%d)\n", err);
2199 goto done;
2200 }
2201 wsec |= val;
2202 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2203 if (err) {
2204 brcmf_err("set wsec error (%d)\n", err);
2205 goto done;
2206 }
2207
2208 done:
2209 brcmf_dbg(TRACE, "Exit\n");
2210 return err;
2211 }
2212
2213 static s32
2214 brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
2215 u8 key_idx, bool pairwise, const u8 *mac_addr)
2216 {
2217 struct brcmf_if *ifp = netdev_priv(ndev);
2218 struct brcmf_wsec_key key;
2219 s32 err = 0;
2220
2221 brcmf_dbg(TRACE, "Enter\n");
2222 if (!check_vif_up(ifp->vif))
2223 return -EIO;
2224
2225 if (key_idx >= DOT11_MAX_DEFAULT_KEYS) {
2226 /* we ignore this key index in this case */
2227 brcmf_err("invalid key index (%d)\n", key_idx);
2228 return -EINVAL;
2229 }
2230
2231 memset(&key, 0, sizeof(key));
2232
2233 key.index = (u32) key_idx;
2234 key.flags = BRCMF_PRIMARY_KEY;
2235 key.algo = CRYPTO_ALGO_OFF;
2236
2237 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2238
2239 /* Set the new key/index */
2240 err = send_key_to_dongle(ndev, &key);
2241
2242 brcmf_dbg(TRACE, "Exit\n");
2243 return err;
2244 }
2245
2246 static s32
2247 brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
2248 u8 key_idx, bool pairwise, const u8 *mac_addr, void *cookie,
2249 void (*callback) (void *cookie, struct key_params * params))
2250 {
2251 struct key_params params;
2252 struct brcmf_if *ifp = netdev_priv(ndev);
2253 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2254 struct brcmf_cfg80211_security *sec;
2255 s32 wsec;
2256 s32 err = 0;
2257
2258 brcmf_dbg(TRACE, "Enter\n");
2259 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2260 if (!check_vif_up(ifp->vif))
2261 return -EIO;
2262
2263 memset(&params, 0, sizeof(params));
2264
2265 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2266 if (err) {
2267 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2268 /* Ignore this error, may happen during DISASSOC */
2269 err = -EAGAIN;
2270 goto done;
2271 }
2272 if (wsec & WEP_ENABLED) {
2273 sec = &profile->sec;
2274 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) {
2275 params.cipher = WLAN_CIPHER_SUITE_WEP40;
2276 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2277 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) {
2278 params.cipher = WLAN_CIPHER_SUITE_WEP104;
2279 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2280 }
2281 } else if (wsec & TKIP_ENABLED) {
2282 params.cipher = WLAN_CIPHER_SUITE_TKIP;
2283 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2284 } else if (wsec & AES_ENABLED) {
2285 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
2286 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2287 } else {
2288 brcmf_err("Invalid algo (0x%x)\n", wsec);
2289 err = -EINVAL;
2290 goto done;
2291 }
2292 callback(cookie, &params);
2293
2294 done:
2295 brcmf_dbg(TRACE, "Exit\n");
2296 return err;
2297 }
2298
2299 static s32
2300 brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy,
2301 struct net_device *ndev, u8 key_idx)
2302 {
2303 brcmf_dbg(INFO, "Not supported\n");
2304
2305 return -EOPNOTSUPP;
2306 }
2307
2308 static s32
2309 brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
2310 const u8 *mac, struct station_info *sinfo)
2311 {
2312 struct brcmf_if *ifp = netdev_priv(ndev);
2313 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2314 struct brcmf_scb_val_le scb_val;
2315 int rssi;
2316 s32 rate;
2317 s32 err = 0;
2318 u8 *bssid = profile->bssid;
2319 struct brcmf_sta_info_le sta_info_le;
2320 u32 beacon_period;
2321 u32 dtim_period;
2322
2323 brcmf_dbg(TRACE, "Enter, MAC %pM\n", mac);
2324 if (!check_vif_up(ifp->vif))
2325 return -EIO;
2326
2327 if (brcmf_is_apmode(ifp->vif)) {
2328 memcpy(&sta_info_le, mac, ETH_ALEN);
2329 err = brcmf_fil_iovar_data_get(ifp, "sta_info",
2330 &sta_info_le,
2331 sizeof(sta_info_le));
2332 if (err < 0) {
2333 brcmf_err("GET STA INFO failed, %d\n", err);
2334 goto done;
2335 }
2336 sinfo->filled = STATION_INFO_INACTIVE_TIME;
2337 sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000;
2338 if (le32_to_cpu(sta_info_le.flags) & BRCMF_STA_ASSOC) {
2339 sinfo->filled |= STATION_INFO_CONNECTED_TIME;
2340 sinfo->connected_time = le32_to_cpu(sta_info_le.in);
2341 }
2342 brcmf_dbg(TRACE, "STA idle time : %d ms, connected time :%d sec\n",
2343 sinfo->inactive_time, sinfo->connected_time);
2344 } else if (ifp->vif->wdev.iftype == NL80211_IFTYPE_STATION) {
2345 if (memcmp(mac, bssid, ETH_ALEN)) {
2346 brcmf_err("Wrong Mac address cfg_mac-%pM wl_bssid-%pM\n",
2347 mac, bssid);
2348 err = -ENOENT;
2349 goto done;
2350 }
2351 /* Report the current tx rate */
2352 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate);
2353 if (err) {
2354 brcmf_err("Could not get rate (%d)\n", err);
2355 goto done;
2356 } else {
2357 sinfo->filled |= STATION_INFO_TX_BITRATE;
2358 sinfo->txrate.legacy = rate * 5;
2359 brcmf_dbg(CONN, "Rate %d Mbps\n", rate / 2);
2360 }
2361
2362 if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
2363 &ifp->vif->sme_state)) {
2364 memset(&scb_val, 0, sizeof(scb_val));
2365 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI,
2366 &scb_val, sizeof(scb_val));
2367 if (err) {
2368 brcmf_err("Could not get rssi (%d)\n", err);
2369 goto done;
2370 } else {
2371 rssi = le32_to_cpu(scb_val.val);
2372 sinfo->filled |= STATION_INFO_SIGNAL;
2373 sinfo->signal = rssi;
2374 brcmf_dbg(CONN, "RSSI %d dBm\n", rssi);
2375 }
2376 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_BCNPRD,
2377 &beacon_period);
2378 if (err) {
2379 brcmf_err("Could not get beacon period (%d)\n",
2380 err);
2381 goto done;
2382 } else {
2383 sinfo->bss_param.beacon_interval =
2384 beacon_period;
2385 brcmf_dbg(CONN, "Beacon peroid %d\n",
2386 beacon_period);
2387 }
2388 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_DTIMPRD,
2389 &dtim_period);
2390 if (err) {
2391 brcmf_err("Could not get DTIM period (%d)\n",
2392 err);
2393 goto done;
2394 } else {
2395 sinfo->bss_param.dtim_period = dtim_period;
2396 brcmf_dbg(CONN, "DTIM peroid %d\n",
2397 dtim_period);
2398 }
2399 sinfo->filled |= STATION_INFO_BSS_PARAM;
2400 }
2401 } else
2402 err = -EPERM;
2403 done:
2404 brcmf_dbg(TRACE, "Exit\n");
2405 return err;
2406 }
2407
2408 static s32
2409 brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
2410 bool enabled, s32 timeout)
2411 {
2412 s32 pm;
2413 s32 err = 0;
2414 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2415 struct brcmf_if *ifp = netdev_priv(ndev);
2416
2417 brcmf_dbg(TRACE, "Enter\n");
2418
2419 /*
2420 * Powersave enable/disable request is coming from the
2421 * cfg80211 even before the interface is up. In that
2422 * scenario, driver will be storing the power save
2423 * preference in cfg struct to apply this to
2424 * FW later while initializing the dongle
2425 */
2426 cfg->pwr_save = enabled;
2427 if (!check_vif_up(ifp->vif)) {
2428
2429 brcmf_dbg(INFO, "Device is not ready, storing the value in cfg_info struct\n");
2430 goto done;
2431 }
2432
2433 pm = enabled ? PM_FAST : PM_OFF;
2434 /* Do not enable the power save after assoc if it is a p2p interface */
2435 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) {
2436 brcmf_dbg(INFO, "Do not enable power save for P2P clients\n");
2437 pm = PM_OFF;
2438 }
2439 brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled"));
2440
2441 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm);
2442 if (err) {
2443 if (err == -ENODEV)
2444 brcmf_err("net_device is not ready yet\n");
2445 else
2446 brcmf_err("error (%d)\n", err);
2447 }
2448 done:
2449 brcmf_dbg(TRACE, "Exit\n");
2450 return err;
2451 }
2452
2453 static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
2454 struct brcmf_bss_info_le *bi)
2455 {
2456 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2457 struct ieee80211_channel *notify_channel;
2458 struct cfg80211_bss *bss;
2459 struct ieee80211_supported_band *band;
2460 struct brcmu_chan ch;
2461 u16 channel;
2462 u32 freq;
2463 u16 notify_capability;
2464 u16 notify_interval;
2465 u8 *notify_ie;
2466 size_t notify_ielen;
2467 s32 notify_signal;
2468
2469 if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) {
2470 brcmf_err("Bss info is larger than buffer. Discarding\n");
2471 return 0;
2472 }
2473
2474 if (!bi->ctl_ch) {
2475 ch.chspec = le16_to_cpu(bi->chanspec);
2476 cfg->d11inf.decchspec(&ch);
2477 bi->ctl_ch = ch.chnum;
2478 }
2479 channel = bi->ctl_ch;
2480
2481 if (channel <= CH_MAX_2G_CHANNEL)
2482 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2483 else
2484 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2485
2486 freq = ieee80211_channel_to_frequency(channel, band->band);
2487 notify_channel = ieee80211_get_channel(wiphy, freq);
2488
2489 notify_capability = le16_to_cpu(bi->capability);
2490 notify_interval = le16_to_cpu(bi->beacon_period);
2491 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2492 notify_ielen = le32_to_cpu(bi->ie_length);
2493 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2494
2495 brcmf_dbg(CONN, "bssid: %pM\n", bi->BSSID);
2496 brcmf_dbg(CONN, "Channel: %d(%d)\n", channel, freq);
2497 brcmf_dbg(CONN, "Capability: %X\n", notify_capability);
2498 brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval);
2499 brcmf_dbg(CONN, "Signal: %d\n", notify_signal);
2500
2501 bss = cfg80211_inform_bss(wiphy, notify_channel,
2502 CFG80211_BSS_FTYPE_UNKNOWN,
2503 (const u8 *)bi->BSSID,
2504 0, notify_capability,
2505 notify_interval, notify_ie,
2506 notify_ielen, notify_signal,
2507 GFP_KERNEL);
2508
2509 if (!bss)
2510 return -ENOMEM;
2511
2512 cfg80211_put_bss(wiphy, bss);
2513
2514 return 0;
2515 }
2516
2517 static struct brcmf_bss_info_le *
2518 next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss)
2519 {
2520 if (bss == NULL)
2521 return list->bss_info_le;
2522 return (struct brcmf_bss_info_le *)((unsigned long)bss +
2523 le32_to_cpu(bss->length));
2524 }
2525
2526 static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg)
2527 {
2528 struct brcmf_scan_results *bss_list;
2529 struct brcmf_bss_info_le *bi = NULL; /* must be initialized */
2530 s32 err = 0;
2531 int i;
2532
2533 bss_list = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
2534 if (bss_list->count != 0 &&
2535 bss_list->version != BRCMF_BSS_INFO_VERSION) {
2536 brcmf_err("Version %d != WL_BSS_INFO_VERSION\n",
2537 bss_list->version);
2538 return -EOPNOTSUPP;
2539 }
2540 brcmf_dbg(SCAN, "scanned AP count (%d)\n", bss_list->count);
2541 for (i = 0; i < bss_list->count; i++) {
2542 bi = next_bss_le(bss_list, bi);
2543 err = brcmf_inform_single_bss(cfg, bi);
2544 if (err)
2545 break;
2546 }
2547 return err;
2548 }
2549
2550 static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg,
2551 struct net_device *ndev, const u8 *bssid)
2552 {
2553 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2554 struct ieee80211_channel *notify_channel;
2555 struct brcmf_bss_info_le *bi = NULL;
2556 struct ieee80211_supported_band *band;
2557 struct cfg80211_bss *bss;
2558 struct brcmu_chan ch;
2559 u8 *buf = NULL;
2560 s32 err = 0;
2561 u32 freq;
2562 u16 notify_capability;
2563 u16 notify_interval;
2564 u8 *notify_ie;
2565 size_t notify_ielen;
2566 s32 notify_signal;
2567
2568 brcmf_dbg(TRACE, "Enter\n");
2569
2570 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
2571 if (buf == NULL) {
2572 err = -ENOMEM;
2573 goto CleanUp;
2574 }
2575
2576 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
2577
2578 err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO,
2579 buf, WL_BSS_INFO_MAX);
2580 if (err) {
2581 brcmf_err("WLC_GET_BSS_INFO failed: %d\n", err);
2582 goto CleanUp;
2583 }
2584
2585 bi = (struct brcmf_bss_info_le *)(buf + 4);
2586
2587 ch.chspec = le16_to_cpu(bi->chanspec);
2588 cfg->d11inf.decchspec(&ch);
2589
2590 if (ch.band == BRCMU_CHAN_BAND_2G)
2591 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2592 else
2593 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2594
2595 freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
2596 notify_channel = ieee80211_get_channel(wiphy, freq);
2597
2598 notify_capability = le16_to_cpu(bi->capability);
2599 notify_interval = le16_to_cpu(bi->beacon_period);
2600 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2601 notify_ielen = le32_to_cpu(bi->ie_length);
2602 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2603
2604 brcmf_dbg(CONN, "channel: %d(%d)\n", ch.chnum, freq);
2605 brcmf_dbg(CONN, "capability: %X\n", notify_capability);
2606 brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval);
2607 brcmf_dbg(CONN, "signal: %d\n", notify_signal);
2608
2609 bss = cfg80211_inform_bss(wiphy, notify_channel,
2610 CFG80211_BSS_FTYPE_UNKNOWN, bssid, 0,
2611 notify_capability, notify_interval,
2612 notify_ie, notify_ielen, notify_signal,
2613 GFP_KERNEL);
2614
2615 if (!bss) {
2616 err = -ENOMEM;
2617 goto CleanUp;
2618 }
2619
2620 cfg80211_put_bss(wiphy, bss);
2621
2622 CleanUp:
2623
2624 kfree(buf);
2625
2626 brcmf_dbg(TRACE, "Exit\n");
2627
2628 return err;
2629 }
2630
2631 static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg,
2632 struct brcmf_if *ifp)
2633 {
2634 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ifp->ndev);
2635 struct brcmf_bss_info_le *bi;
2636 struct brcmf_ssid *ssid;
2637 const struct brcmf_tlv *tim;
2638 u16 beacon_interval;
2639 u8 dtim_period;
2640 size_t ie_len;
2641 u8 *ie;
2642 s32 err = 0;
2643
2644 brcmf_dbg(TRACE, "Enter\n");
2645 if (brcmf_is_ibssmode(ifp->vif))
2646 return err;
2647
2648 ssid = &profile->ssid;
2649
2650 *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX);
2651 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
2652 cfg->extra_buf, WL_EXTRA_BUF_MAX);
2653 if (err) {
2654 brcmf_err("Could not get bss info %d\n", err);
2655 goto update_bss_info_out;
2656 }
2657
2658 bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4);
2659 err = brcmf_inform_single_bss(cfg, bi);
2660 if (err)
2661 goto update_bss_info_out;
2662
2663 ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset);
2664 ie_len = le32_to_cpu(bi->ie_length);
2665 beacon_interval = le16_to_cpu(bi->beacon_period);
2666
2667 tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM);
2668 if (tim)
2669 dtim_period = tim->data[1];
2670 else {
2671 /*
2672 * active scan was done so we could not get dtim
2673 * information out of probe response.
2674 * so we speficially query dtim information to dongle.
2675 */
2676 u32 var;
2677 err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var);
2678 if (err) {
2679 brcmf_err("wl dtim_assoc failed (%d)\n", err);
2680 goto update_bss_info_out;
2681 }
2682 dtim_period = (u8)var;
2683 }
2684
2685 update_bss_info_out:
2686 brcmf_dbg(TRACE, "Exit");
2687 return err;
2688 }
2689
2690 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg)
2691 {
2692 struct escan_info *escan = &cfg->escan_info;
2693
2694 set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2695 if (cfg->scan_request) {
2696 escan->escan_state = WL_ESCAN_STATE_IDLE;
2697 brcmf_notify_escan_complete(cfg, escan->ifp, true, true);
2698 }
2699 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2700 clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2701 }
2702
2703 static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
2704 {
2705 struct brcmf_cfg80211_info *cfg =
2706 container_of(work, struct brcmf_cfg80211_info,
2707 escan_timeout_work);
2708
2709 brcmf_inform_bss(cfg);
2710 brcmf_notify_escan_complete(cfg, cfg->escan_info.ifp, true, true);
2711 }
2712
2713 static void brcmf_escan_timeout(unsigned long data)
2714 {
2715 struct brcmf_cfg80211_info *cfg =
2716 (struct brcmf_cfg80211_info *)data;
2717
2718 if (cfg->scan_request) {
2719 brcmf_err("timer expired\n");
2720 schedule_work(&cfg->escan_timeout_work);
2721 }
2722 }
2723
2724 static s32
2725 brcmf_compare_update_same_bss(struct brcmf_cfg80211_info *cfg,
2726 struct brcmf_bss_info_le *bss,
2727 struct brcmf_bss_info_le *bss_info_le)
2728 {
2729 struct brcmu_chan ch_bss, ch_bss_info_le;
2730
2731 ch_bss.chspec = le16_to_cpu(bss->chanspec);
2732 cfg->d11inf.decchspec(&ch_bss);
2733 ch_bss_info_le.chspec = le16_to_cpu(bss_info_le->chanspec);
2734 cfg->d11inf.decchspec(&ch_bss_info_le);
2735
2736 if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) &&
2737 ch_bss.band == ch_bss_info_le.band &&
2738 bss_info_le->SSID_len == bss->SSID_len &&
2739 !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) {
2740 if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) ==
2741 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL)) {
2742 s16 bss_rssi = le16_to_cpu(bss->RSSI);
2743 s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI);
2744
2745 /* preserve max RSSI if the measurements are
2746 * both on-channel or both off-channel
2747 */
2748 if (bss_info_rssi > bss_rssi)
2749 bss->RSSI = bss_info_le->RSSI;
2750 } else if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) &&
2751 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == 0) {
2752 /* preserve the on-channel rssi measurement
2753 * if the new measurement is off channel
2754 */
2755 bss->RSSI = bss_info_le->RSSI;
2756 bss->flags |= BRCMF_BSS_RSSI_ON_CHANNEL;
2757 }
2758 return 1;
2759 }
2760 return 0;
2761 }
2762
2763 static s32
2764 brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
2765 const struct brcmf_event_msg *e, void *data)
2766 {
2767 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
2768 s32 status;
2769 struct brcmf_escan_result_le *escan_result_le;
2770 struct brcmf_bss_info_le *bss_info_le;
2771 struct brcmf_bss_info_le *bss = NULL;
2772 u32 bi_length;
2773 struct brcmf_scan_results *list;
2774 u32 i;
2775 bool aborted;
2776
2777 status = e->status;
2778
2779 if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
2780 brcmf_err("scan not ready, bssidx=%d\n", ifp->bssidx);
2781 return -EPERM;
2782 }
2783
2784 if (status == BRCMF_E_STATUS_PARTIAL) {
2785 brcmf_dbg(SCAN, "ESCAN Partial result\n");
2786 escan_result_le = (struct brcmf_escan_result_le *) data;
2787 if (!escan_result_le) {
2788 brcmf_err("Invalid escan result (NULL pointer)\n");
2789 goto exit;
2790 }
2791 if (le16_to_cpu(escan_result_le->bss_count) != 1) {
2792 brcmf_err("Invalid bss_count %d: ignoring\n",
2793 escan_result_le->bss_count);
2794 goto exit;
2795 }
2796 bss_info_le = &escan_result_le->bss_info_le;
2797
2798 if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le))
2799 goto exit;
2800
2801 if (!cfg->scan_request) {
2802 brcmf_dbg(SCAN, "result without cfg80211 request\n");
2803 goto exit;
2804 }
2805
2806 bi_length = le32_to_cpu(bss_info_le->length);
2807 if (bi_length != (le32_to_cpu(escan_result_le->buflen) -
2808 WL_ESCAN_RESULTS_FIXED_SIZE)) {
2809 brcmf_err("Invalid bss_info length %d: ignoring\n",
2810 bi_length);
2811 goto exit;
2812 }
2813
2814 if (!(cfg_to_wiphy(cfg)->interface_modes &
2815 BIT(NL80211_IFTYPE_ADHOC))) {
2816 if (le16_to_cpu(bss_info_le->capability) &
2817 WLAN_CAPABILITY_IBSS) {
2818 brcmf_err("Ignoring IBSS result\n");
2819 goto exit;
2820 }
2821 }
2822
2823 list = (struct brcmf_scan_results *)
2824 cfg->escan_info.escan_buf;
2825 if (bi_length > WL_ESCAN_BUF_SIZE - list->buflen) {
2826 brcmf_err("Buffer is too small: ignoring\n");
2827 goto exit;
2828 }
2829
2830 for (i = 0; i < list->count; i++) {
2831 bss = bss ? (struct brcmf_bss_info_le *)
2832 ((unsigned char *)bss +
2833 le32_to_cpu(bss->length)) : list->bss_info_le;
2834 if (brcmf_compare_update_same_bss(cfg, bss,
2835 bss_info_le))
2836 goto exit;
2837 }
2838 memcpy(&(cfg->escan_info.escan_buf[list->buflen]),
2839 bss_info_le, bi_length);
2840 list->version = le32_to_cpu(bss_info_le->version);
2841 list->buflen += bi_length;
2842 list->count++;
2843 } else {
2844 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2845 if (brcmf_p2p_scan_finding_common_channel(cfg, NULL))
2846 goto exit;
2847 if (cfg->scan_request) {
2848 brcmf_inform_bss(cfg);
2849 aborted = status != BRCMF_E_STATUS_SUCCESS;
2850 brcmf_notify_escan_complete(cfg, ifp, aborted, false);
2851 } else
2852 brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n",
2853 status);
2854 }
2855 exit:
2856 return 0;
2857 }
2858
2859 static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg)
2860 {
2861 brcmf_fweh_register(cfg->pub, BRCMF_E_ESCAN_RESULT,
2862 brcmf_cfg80211_escan_handler);
2863 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2864 /* Init scan_timeout timer */
2865 init_timer(&cfg->escan_timeout);
2866 cfg->escan_timeout.data = (unsigned long) cfg;
2867 cfg->escan_timeout.function = brcmf_escan_timeout;
2868 INIT_WORK(&cfg->escan_timeout_work,
2869 brcmf_cfg80211_escan_timeout_worker);
2870 }
2871
2872 static __always_inline void brcmf_delay(u32 ms)
2873 {
2874 if (ms < 1000 / HZ) {
2875 cond_resched();
2876 mdelay(ms);
2877 } else {
2878 msleep(ms);
2879 }
2880 }
2881
2882 static s32 brcmf_config_wowl_pattern(struct brcmf_if *ifp, u8 cmd[4],
2883 u8 *pattern, u32 patternsize, u8 *mask,
2884 u32 packet_offset)
2885 {
2886 struct brcmf_fil_wowl_pattern_le *filter;
2887 u32 masksize;
2888 u32 patternoffset;
2889 u8 *buf;
2890 u32 bufsize;
2891 s32 ret;
2892
2893 masksize = (patternsize + 7) / 8;
2894 patternoffset = sizeof(*filter) - sizeof(filter->cmd) + masksize;
2895
2896 bufsize = sizeof(*filter) + patternsize + masksize;
2897 buf = kzalloc(bufsize, GFP_KERNEL);
2898 if (!buf)
2899 return -ENOMEM;
2900 filter = (struct brcmf_fil_wowl_pattern_le *)buf;
2901
2902 memcpy(filter->cmd, cmd, 4);
2903 filter->masksize = cpu_to_le32(masksize);
2904 filter->offset = cpu_to_le32(packet_offset);
2905 filter->patternoffset = cpu_to_le32(patternoffset);
2906 filter->patternsize = cpu_to_le32(patternsize);
2907 filter->type = cpu_to_le32(BRCMF_WOWL_PATTERN_TYPE_BITMAP);
2908
2909 if ((mask) && (masksize))
2910 memcpy(buf + sizeof(*filter), mask, masksize);
2911 if ((pattern) && (patternsize))
2912 memcpy(buf + sizeof(*filter) + masksize, pattern, patternsize);
2913
2914 ret = brcmf_fil_iovar_data_set(ifp, "wowl_pattern", buf, bufsize);
2915
2916 kfree(buf);
2917 return ret;
2918 }
2919
2920 static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
2921 {
2922 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2923 struct net_device *ndev = cfg_to_ndev(cfg);
2924 struct brcmf_if *ifp = netdev_priv(ndev);
2925
2926 brcmf_dbg(TRACE, "Enter\n");
2927
2928 if (cfg->wowl_enabled) {
2929 brcmf_configure_arp_offload(ifp, true);
2930 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM,
2931 cfg->pre_wowl_pmmode);
2932 brcmf_fil_iovar_int_set(ifp, "wowl_clear", 0);
2933 brcmf_config_wowl_pattern(ifp, "clr", NULL, 0, NULL, 0);
2934 cfg->wowl_enabled = false;
2935 }
2936 return 0;
2937 }
2938
2939 static void brcmf_configure_wowl(struct brcmf_cfg80211_info *cfg,
2940 struct brcmf_if *ifp,
2941 struct cfg80211_wowlan *wowl)
2942 {
2943 u32 wowl_config;
2944 u32 i;
2945
2946 brcmf_dbg(TRACE, "Suspend, wowl config.\n");
2947
2948 brcmf_configure_arp_offload(ifp, false);
2949 brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_PM, &cfg->pre_wowl_pmmode);
2950 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, PM_MAX);
2951
2952 wowl_config = 0;
2953 if (wowl->disconnect)
2954 wowl_config = BRCMF_WOWL_DIS | BRCMF_WOWL_BCN | BRCMF_WOWL_RETR;
2955 if (wowl->magic_pkt)
2956 wowl_config |= BRCMF_WOWL_MAGIC;
2957 if ((wowl->patterns) && (wowl->n_patterns)) {
2958 wowl_config |= BRCMF_WOWL_NET;
2959 for (i = 0; i < wowl->n_patterns; i++) {
2960 brcmf_config_wowl_pattern(ifp, "add",
2961 (u8 *)wowl->patterns[i].pattern,
2962 wowl->patterns[i].pattern_len,
2963 (u8 *)wowl->patterns[i].mask,
2964 wowl->patterns[i].pkt_offset);
2965 }
2966 }
2967 brcmf_fil_iovar_int_set(ifp, "wowl", wowl_config);
2968 brcmf_fil_iovar_int_set(ifp, "wowl_activate", 1);
2969 brcmf_bus_wowl_config(cfg->pub->bus_if, true);
2970 cfg->wowl_enabled = true;
2971 }
2972
2973 static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
2974 struct cfg80211_wowlan *wowl)
2975 {
2976 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2977 struct net_device *ndev = cfg_to_ndev(cfg);
2978 struct brcmf_if *ifp = netdev_priv(ndev);
2979 struct brcmf_cfg80211_vif *vif;
2980
2981 brcmf_dbg(TRACE, "Enter\n");
2982
2983 /* if the primary net_device is not READY there is nothing
2984 * we can do but pray resume goes smoothly.
2985 */
2986 if (!check_vif_up(ifp->vif))
2987 goto exit;
2988
2989 /* end any scanning */
2990 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
2991 brcmf_abort_scanning(cfg);
2992
2993 if (wowl == NULL) {
2994 brcmf_bus_wowl_config(cfg->pub->bus_if, false);
2995 list_for_each_entry(vif, &cfg->vif_list, list) {
2996 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state))
2997 continue;
2998 /* While going to suspend if associated with AP
2999 * disassociate from AP to save power while system is
3000 * in suspended state
3001 */
3002 brcmf_link_down(vif);
3003 /* Make sure WPA_Supplicant receives all the event
3004 * generated due to DISASSOC call to the fw to keep
3005 * the state fw and WPA_Supplicant state consistent
3006 */
3007 brcmf_delay(500);
3008 }
3009 /* Configure MPC */
3010 brcmf_set_mpc(ifp, 1);
3011
3012 } else {
3013 /* Configure WOWL paramaters */
3014 brcmf_configure_wowl(cfg, ifp, wowl);
3015 }
3016
3017 exit:
3018 brcmf_dbg(TRACE, "Exit\n");
3019 /* clear any scanning activity */
3020 cfg->scan_status = 0;
3021 return 0;
3022 }
3023
3024 static __used s32
3025 brcmf_update_pmklist(struct net_device *ndev,
3026 struct brcmf_cfg80211_pmk_list *pmk_list, s32 err)
3027 {
3028 int i, j;
3029 u32 pmkid_len;
3030
3031 pmkid_len = le32_to_cpu(pmk_list->pmkids.npmkid);
3032
3033 brcmf_dbg(CONN, "No of elements %d\n", pmkid_len);
3034 for (i = 0; i < pmkid_len; i++) {
3035 brcmf_dbg(CONN, "PMKID[%d]: %pM =\n", i,
3036 &pmk_list->pmkids.pmkid[i].BSSID);
3037 for (j = 0; j < WLAN_PMKID_LEN; j++)
3038 brcmf_dbg(CONN, "%02x\n",
3039 pmk_list->pmkids.pmkid[i].PMKID[j]);
3040 }
3041
3042 if (!err)
3043 brcmf_fil_iovar_data_set(netdev_priv(ndev), "pmkid_info",
3044 (char *)pmk_list, sizeof(*pmk_list));
3045
3046 return err;
3047 }
3048
3049 static s32
3050 brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev,
3051 struct cfg80211_pmksa *pmksa)
3052 {
3053 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3054 struct brcmf_if *ifp = netdev_priv(ndev);
3055 struct pmkid_list *pmkids = &cfg->pmk_list->pmkids;
3056 s32 err = 0;
3057 u32 pmkid_len, i;
3058
3059 brcmf_dbg(TRACE, "Enter\n");
3060 if (!check_vif_up(ifp->vif))
3061 return -EIO;
3062
3063 pmkid_len = le32_to_cpu(pmkids->npmkid);
3064 for (i = 0; i < pmkid_len; i++)
3065 if (!memcmp(pmksa->bssid, pmkids->pmkid[i].BSSID, ETH_ALEN))
3066 break;
3067 if (i < WL_NUM_PMKIDS_MAX) {
3068 memcpy(pmkids->pmkid[i].BSSID, pmksa->bssid, ETH_ALEN);
3069 memcpy(pmkids->pmkid[i].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
3070 if (i == pmkid_len) {
3071 pmkid_len++;
3072 pmkids->npmkid = cpu_to_le32(pmkid_len);
3073 }
3074 } else
3075 err = -EINVAL;
3076
3077 brcmf_dbg(CONN, "set_pmksa,IW_PMKSA_ADD - PMKID: %pM =\n",
3078 pmkids->pmkid[pmkid_len].BSSID);
3079 for (i = 0; i < WLAN_PMKID_LEN; i++)
3080 brcmf_dbg(CONN, "%02x\n", pmkids->pmkid[pmkid_len].PMKID[i]);
3081
3082 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3083
3084 brcmf_dbg(TRACE, "Exit\n");
3085 return err;
3086 }
3087
3088 static s32
3089 brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
3090 struct cfg80211_pmksa *pmksa)
3091 {
3092 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3093 struct brcmf_if *ifp = netdev_priv(ndev);
3094 struct pmkid_list pmkid;
3095 s32 err = 0;
3096 u32 pmkid_len, i;
3097
3098 brcmf_dbg(TRACE, "Enter\n");
3099 if (!check_vif_up(ifp->vif))
3100 return -EIO;
3101
3102 memcpy(&pmkid.pmkid[0].BSSID, pmksa->bssid, ETH_ALEN);
3103 memcpy(&pmkid.pmkid[0].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
3104
3105 brcmf_dbg(CONN, "del_pmksa,IW_PMKSA_REMOVE - PMKID: %pM =\n",
3106 &pmkid.pmkid[0].BSSID);
3107 for (i = 0; i < WLAN_PMKID_LEN; i++)
3108 brcmf_dbg(CONN, "%02x\n", pmkid.pmkid[0].PMKID[i]);
3109
3110 pmkid_len = le32_to_cpu(cfg->pmk_list->pmkids.npmkid);
3111 for (i = 0; i < pmkid_len; i++)
3112 if (!memcmp
3113 (pmksa->bssid, &cfg->pmk_list->pmkids.pmkid[i].BSSID,
3114 ETH_ALEN))
3115 break;
3116
3117 if ((pmkid_len > 0)
3118 && (i < pmkid_len)) {
3119 memset(&cfg->pmk_list->pmkids.pmkid[i], 0,
3120 sizeof(struct pmkid));
3121 for (; i < (pmkid_len - 1); i++) {
3122 memcpy(&cfg->pmk_list->pmkids.pmkid[i].BSSID,
3123 &cfg->pmk_list->pmkids.pmkid[i + 1].BSSID,
3124 ETH_ALEN);
3125 memcpy(&cfg->pmk_list->pmkids.pmkid[i].PMKID,
3126 &cfg->pmk_list->pmkids.pmkid[i + 1].PMKID,
3127 WLAN_PMKID_LEN);
3128 }
3129 cfg->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1);
3130 } else
3131 err = -EINVAL;
3132
3133 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3134
3135 brcmf_dbg(TRACE, "Exit\n");
3136 return err;
3137
3138 }
3139
3140 static s32
3141 brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev)
3142 {
3143 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3144 struct brcmf_if *ifp = netdev_priv(ndev);
3145 s32 err = 0;
3146
3147 brcmf_dbg(TRACE, "Enter\n");
3148 if (!check_vif_up(ifp->vif))
3149 return -EIO;
3150
3151 memset(cfg->pmk_list, 0, sizeof(*cfg->pmk_list));
3152 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3153
3154 brcmf_dbg(TRACE, "Exit\n");
3155 return err;
3156
3157 }
3158
3159 /*
3160 * PFN result doesn't have all the info which are
3161 * required by the supplicant
3162 * (For e.g IEs) Do a target Escan so that sched scan results are reported
3163 * via wl_inform_single_bss in the required format. Escan does require the
3164 * scan request in the form of cfg80211_scan_request. For timebeing, create
3165 * cfg80211_scan_request one out of the received PNO event.
3166 */
3167 static s32
3168 brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
3169 const struct brcmf_event_msg *e, void *data)
3170 {
3171 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
3172 struct brcmf_pno_net_info_le *netinfo, *netinfo_start;
3173 struct cfg80211_scan_request *request = NULL;
3174 struct cfg80211_ssid *ssid = NULL;
3175 struct ieee80211_channel *channel = NULL;
3176 struct wiphy *wiphy = cfg_to_wiphy(cfg);
3177 int err = 0;
3178 int channel_req = 0;
3179 int band = 0;
3180 struct brcmf_pno_scanresults_le *pfn_result;
3181 u32 result_count;
3182 u32 status;
3183
3184 brcmf_dbg(SCAN, "Enter\n");
3185
3186 if (e->event_code == BRCMF_E_PFN_NET_LOST) {
3187 brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n");
3188 return 0;
3189 }
3190
3191 pfn_result = (struct brcmf_pno_scanresults_le *)data;
3192 result_count = le32_to_cpu(pfn_result->count);
3193 status = le32_to_cpu(pfn_result->status);
3194
3195 /*
3196 * PFN event is limited to fit 512 bytes so we may get
3197 * multiple NET_FOUND events. For now place a warning here.
3198 */
3199 WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE);
3200 brcmf_dbg(SCAN, "PFN NET FOUND event. count: %d\n", result_count);
3201 if (result_count > 0) {
3202 int i;
3203
3204 request = kzalloc(sizeof(*request), GFP_KERNEL);
3205 ssid = kcalloc(result_count, sizeof(*ssid), GFP_KERNEL);
3206 channel = kcalloc(result_count, sizeof(*channel), GFP_KERNEL);
3207 if (!request || !ssid || !channel) {
3208 err = -ENOMEM;
3209 goto out_err;
3210 }
3211
3212 request->wiphy = wiphy;
3213 data += sizeof(struct brcmf_pno_scanresults_le);
3214 netinfo_start = (struct brcmf_pno_net_info_le *)data;
3215
3216 for (i = 0; i < result_count; i++) {
3217 netinfo = &netinfo_start[i];
3218 if (!netinfo) {
3219 brcmf_err("Invalid netinfo ptr. index: %d\n",
3220 i);
3221 err = -EINVAL;
3222 goto out_err;
3223 }
3224
3225 brcmf_dbg(SCAN, "SSID:%s Channel:%d\n",
3226 netinfo->SSID, netinfo->channel);
3227 memcpy(ssid[i].ssid, netinfo->SSID, netinfo->SSID_len);
3228 ssid[i].ssid_len = netinfo->SSID_len;
3229 request->n_ssids++;
3230
3231 channel_req = netinfo->channel;
3232 if (channel_req <= CH_MAX_2G_CHANNEL)
3233 band = NL80211_BAND_2GHZ;
3234 else
3235 band = NL80211_BAND_5GHZ;
3236 channel[i].center_freq =
3237 ieee80211_channel_to_frequency(channel_req,
3238 band);
3239 channel[i].band = band;
3240 channel[i].flags |= IEEE80211_CHAN_NO_HT40;
3241 request->channels[i] = &channel[i];
3242 request->n_channels++;
3243 }
3244
3245 /* assign parsed ssid array */
3246 if (request->n_ssids)
3247 request->ssids = &ssid[0];
3248
3249 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3250 /* Abort any on-going scan */
3251 brcmf_abort_scanning(cfg);
3252 }
3253
3254 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3255 cfg->escan_info.run = brcmf_run_escan;
3256 err = brcmf_do_escan(cfg, wiphy, ifp, request);
3257 if (err) {
3258 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3259 goto out_err;
3260 }
3261 cfg->sched_escan = true;
3262 cfg->scan_request = request;
3263 } else {
3264 brcmf_err("FALSE PNO Event. (pfn_count == 0)\n");
3265 goto out_err;
3266 }
3267
3268 kfree(ssid);
3269 kfree(channel);
3270 kfree(request);
3271 return 0;
3272
3273 out_err:
3274 kfree(ssid);
3275 kfree(channel);
3276 kfree(request);
3277 cfg80211_sched_scan_stopped(wiphy);
3278 return err;
3279 }
3280
3281 static int brcmf_dev_pno_clean(struct net_device *ndev)
3282 {
3283 int ret;
3284
3285 /* Disable pfn */
3286 ret = brcmf_fil_iovar_int_set(netdev_priv(ndev), "pfn", 0);
3287 if (ret == 0) {
3288 /* clear pfn */
3289 ret = brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfnclear",
3290 NULL, 0);
3291 }
3292 if (ret < 0)
3293 brcmf_err("failed code %d\n", ret);
3294
3295 return ret;
3296 }
3297
3298 static int brcmf_dev_pno_config(struct net_device *ndev)
3299 {
3300 struct brcmf_pno_param_le pfn_param;
3301
3302 memset(&pfn_param, 0, sizeof(pfn_param));
3303 pfn_param.version = cpu_to_le32(BRCMF_PNO_VERSION);
3304
3305 /* set extra pno params */
3306 pfn_param.flags = cpu_to_le16(1 << BRCMF_PNO_ENABLE_ADAPTSCAN_BIT);
3307 pfn_param.repeat = BRCMF_PNO_REPEAT;
3308 pfn_param.exp = BRCMF_PNO_FREQ_EXPO_MAX;
3309
3310 /* set up pno scan fr */
3311 pfn_param.scan_freq = cpu_to_le32(BRCMF_PNO_TIME);
3312
3313 return brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfn_set",
3314 &pfn_param, sizeof(pfn_param));
3315 }
3316
3317 static int
3318 brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
3319 struct net_device *ndev,
3320 struct cfg80211_sched_scan_request *request)
3321 {
3322 struct brcmf_if *ifp = netdev_priv(ndev);
3323 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
3324 struct brcmf_pno_net_param_le pfn;
3325 int i;
3326 int ret = 0;
3327
3328 brcmf_dbg(SCAN, "Enter n_match_sets:%d n_ssids:%d\n",
3329 request->n_match_sets, request->n_ssids);
3330 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3331 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
3332 return -EAGAIN;
3333 }
3334 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
3335 brcmf_err("Scanning suppressed: status (%lu)\n",
3336 cfg->scan_status);
3337 return -EAGAIN;
3338 }
3339
3340 if (!request->n_ssids || !request->n_match_sets) {
3341 brcmf_dbg(SCAN, "Invalid sched scan req!! n_ssids:%d\n",
3342 request->n_ssids);
3343 return -EINVAL;
3344 }
3345
3346 if (request->n_ssids > 0) {
3347 for (i = 0; i < request->n_ssids; i++) {
3348 /* Active scan req for ssids */
3349 brcmf_dbg(SCAN, ">>> Active scan req for ssid (%s)\n",
3350 request->ssids[i].ssid);
3351
3352 /*
3353 * match_set ssids is a supert set of n_ssid list,
3354 * so we need not add these set seperately.
3355 */
3356 }
3357 }
3358
3359 if (request->n_match_sets > 0) {
3360 /* clean up everything */
3361 ret = brcmf_dev_pno_clean(ndev);
3362 if (ret < 0) {
3363 brcmf_err("failed error=%d\n", ret);
3364 return ret;
3365 }
3366
3367 /* configure pno */
3368 ret = brcmf_dev_pno_config(ndev);
3369 if (ret < 0) {
3370 brcmf_err("PNO setup failed!! ret=%d\n", ret);
3371 return -EINVAL;
3372 }
3373
3374 /* configure each match set */
3375 for (i = 0; i < request->n_match_sets; i++) {
3376 struct cfg80211_ssid *ssid;
3377 u32 ssid_len;
3378
3379 ssid = &request->match_sets[i].ssid;
3380 ssid_len = ssid->ssid_len;
3381
3382 if (!ssid_len) {
3383 brcmf_err("skip broadcast ssid\n");
3384 continue;
3385 }
3386 pfn.auth = cpu_to_le32(WLAN_AUTH_OPEN);
3387 pfn.wpa_auth = cpu_to_le32(BRCMF_PNO_WPA_AUTH_ANY);
3388 pfn.wsec = cpu_to_le32(0);
3389 pfn.infra = cpu_to_le32(1);
3390 pfn.flags = cpu_to_le32(1 << BRCMF_PNO_HIDDEN_BIT);
3391 pfn.ssid.SSID_len = cpu_to_le32(ssid_len);
3392 memcpy(pfn.ssid.SSID, ssid->ssid, ssid_len);
3393 ret = brcmf_fil_iovar_data_set(ifp, "pfn_add", &pfn,
3394 sizeof(pfn));
3395 brcmf_dbg(SCAN, ">>> PNO filter %s for ssid (%s)\n",
3396 ret == 0 ? "set" : "failed", ssid->ssid);
3397 }
3398 /* Enable the PNO */
3399 if (brcmf_fil_iovar_int_set(ifp, "pfn", 1) < 0) {
3400 brcmf_err("PNO enable failed!! ret=%d\n", ret);
3401 return -EINVAL;
3402 }
3403 } else {
3404 return -EINVAL;
3405 }
3406
3407 return 0;
3408 }
3409
3410 static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy,
3411 struct net_device *ndev)
3412 {
3413 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3414
3415 brcmf_dbg(SCAN, "enter\n");
3416 brcmf_dev_pno_clean(ndev);
3417 if (cfg->sched_escan)
3418 brcmf_notify_escan_complete(cfg, netdev_priv(ndev), true, true);
3419 return 0;
3420 }
3421
3422 static s32 brcmf_configure_opensecurity(struct brcmf_if *ifp)
3423 {
3424 s32 err;
3425
3426 /* set auth */
3427 err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0);
3428 if (err < 0) {
3429 brcmf_err("auth error %d\n", err);
3430 return err;
3431 }
3432 /* set wsec */
3433 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0);
3434 if (err < 0) {
3435 brcmf_err("wsec error %d\n", err);
3436 return err;
3437 }
3438 /* set upper-layer auth */
3439 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", WPA_AUTH_NONE);
3440 if (err < 0) {
3441 brcmf_err("wpa_auth error %d\n", err);
3442 return err;
3443 }
3444
3445 return 0;
3446 }
3447
3448 static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie)
3449 {
3450 if (is_rsn_ie)
3451 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0);
3452
3453 return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0);
3454 }
3455
3456 static s32
3457 brcmf_configure_wpaie(struct brcmf_if *ifp,
3458 const struct brcmf_vs_tlv *wpa_ie,
3459 bool is_rsn_ie)
3460 {
3461 u32 auth = 0; /* d11 open authentication */
3462 u16 count;
3463 s32 err = 0;
3464 s32 len = 0;
3465 u32 i;
3466 u32 wsec;
3467 u32 pval = 0;
3468 u32 gval = 0;
3469 u32 wpa_auth = 0;
3470 u32 offset;
3471 u8 *data;
3472 u16 rsn_cap;
3473 u32 wme_bss_disable;
3474
3475 brcmf_dbg(TRACE, "Enter\n");
3476 if (wpa_ie == NULL)
3477 goto exit;
3478
3479 len = wpa_ie->len + TLV_HDR_LEN;
3480 data = (u8 *)wpa_ie;
3481 offset = TLV_HDR_LEN;
3482 if (!is_rsn_ie)
3483 offset += VS_IE_FIXED_HDR_LEN;
3484 else
3485 offset += WPA_IE_VERSION_LEN;
3486
3487 /* check for multicast cipher suite */
3488 if (offset + WPA_IE_MIN_OUI_LEN > len) {
3489 err = -EINVAL;
3490 brcmf_err("no multicast cipher suite\n");
3491 goto exit;
3492 }
3493
3494 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3495 err = -EINVAL;
3496 brcmf_err("ivalid OUI\n");
3497 goto exit;
3498 }
3499 offset += TLV_OUI_LEN;
3500
3501 /* pick up multicast cipher */
3502 switch (data[offset]) {
3503 case WPA_CIPHER_NONE:
3504 gval = 0;
3505 break;
3506 case WPA_CIPHER_WEP_40:
3507 case WPA_CIPHER_WEP_104:
3508 gval = WEP_ENABLED;
3509 break;
3510 case WPA_CIPHER_TKIP:
3511 gval = TKIP_ENABLED;
3512 break;
3513 case WPA_CIPHER_AES_CCM:
3514 gval = AES_ENABLED;
3515 break;
3516 default:
3517 err = -EINVAL;
3518 brcmf_err("Invalid multi cast cipher info\n");
3519 goto exit;
3520 }
3521
3522 offset++;
3523 /* walk thru unicast cipher list and pick up what we recognize */
3524 count = data[offset] + (data[offset + 1] << 8);
3525 offset += WPA_IE_SUITE_COUNT_LEN;
3526 /* Check for unicast suite(s) */
3527 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3528 err = -EINVAL;
3529 brcmf_err("no unicast cipher suite\n");
3530 goto exit;
3531 }
3532 for (i = 0; i < count; i++) {
3533 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3534 err = -EINVAL;
3535 brcmf_err("ivalid OUI\n");
3536 goto exit;
3537 }
3538 offset += TLV_OUI_LEN;
3539 switch (data[offset]) {
3540 case WPA_CIPHER_NONE:
3541 break;
3542 case WPA_CIPHER_WEP_40:
3543 case WPA_CIPHER_WEP_104:
3544 pval |= WEP_ENABLED;
3545 break;
3546 case WPA_CIPHER_TKIP:
3547 pval |= TKIP_ENABLED;
3548 break;
3549 case WPA_CIPHER_AES_CCM:
3550 pval |= AES_ENABLED;
3551 break;
3552 default:
3553 brcmf_err("Ivalid unicast security info\n");
3554 }
3555 offset++;
3556 }
3557 /* walk thru auth management suite list and pick up what we recognize */
3558 count = data[offset] + (data[offset + 1] << 8);
3559 offset += WPA_IE_SUITE_COUNT_LEN;
3560 /* Check for auth key management suite(s) */
3561 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3562 err = -EINVAL;
3563 brcmf_err("no auth key mgmt suite\n");
3564 goto exit;
3565 }
3566 for (i = 0; i < count; i++) {
3567 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3568 err = -EINVAL;
3569 brcmf_err("ivalid OUI\n");
3570 goto exit;
3571 }
3572 offset += TLV_OUI_LEN;
3573 switch (data[offset]) {
3574 case RSN_AKM_NONE:
3575 brcmf_dbg(TRACE, "RSN_AKM_NONE\n");
3576 wpa_auth |= WPA_AUTH_NONE;
3577 break;
3578 case RSN_AKM_UNSPECIFIED:
3579 brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n");
3580 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) :
3581 (wpa_auth |= WPA_AUTH_UNSPECIFIED);
3582 break;
3583 case RSN_AKM_PSK:
3584 brcmf_dbg(TRACE, "RSN_AKM_PSK\n");
3585 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) :
3586 (wpa_auth |= WPA_AUTH_PSK);
3587 break;
3588 default:
3589 brcmf_err("Ivalid key mgmt info\n");
3590 }
3591 offset++;
3592 }
3593
3594 if (is_rsn_ie) {
3595 wme_bss_disable = 1;
3596 if ((offset + RSN_CAP_LEN) <= len) {
3597 rsn_cap = data[offset] + (data[offset + 1] << 8);
3598 if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK)
3599 wme_bss_disable = 0;
3600 }
3601 /* set wme_bss_disable to sync RSN Capabilities */
3602 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable",
3603 wme_bss_disable);
3604 if (err < 0) {
3605 brcmf_err("wme_bss_disable error %d\n", err);
3606 goto exit;
3607 }
3608 }
3609 /* FOR WPS , set SES_OW_ENABLED */
3610 wsec = (pval | gval | SES_OW_ENABLED);
3611
3612 /* set auth */
3613 err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth);
3614 if (err < 0) {
3615 brcmf_err("auth error %d\n", err);
3616 goto exit;
3617 }
3618 /* set wsec */
3619 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
3620 if (err < 0) {
3621 brcmf_err("wsec error %d\n", err);
3622 goto exit;
3623 }
3624 /* set upper-layer auth */
3625 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth);
3626 if (err < 0) {
3627 brcmf_err("wpa_auth error %d\n", err);
3628 goto exit;
3629 }
3630
3631 exit:
3632 return err;
3633 }
3634
3635 static s32
3636 brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len,
3637 struct parsed_vndr_ies *vndr_ies)
3638 {
3639 struct brcmf_vs_tlv *vndrie;
3640 struct brcmf_tlv *ie;
3641 struct parsed_vndr_ie_info *parsed_info;
3642 s32 remaining_len;
3643
3644 remaining_len = (s32)vndr_ie_len;
3645 memset(vndr_ies, 0, sizeof(*vndr_ies));
3646
3647 ie = (struct brcmf_tlv *)vndr_ie_buf;
3648 while (ie) {
3649 if (ie->id != WLAN_EID_VENDOR_SPECIFIC)
3650 goto next;
3651 vndrie = (struct brcmf_vs_tlv *)ie;
3652 /* len should be bigger than OUI length + one */
3653 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) {
3654 brcmf_err("invalid vndr ie. length is too small %d\n",
3655 vndrie->len);
3656 goto next;
3657 }
3658 /* if wpa or wme ie, do not add ie */
3659 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) &&
3660 ((vndrie->oui_type == WPA_OUI_TYPE) ||
3661 (vndrie->oui_type == WME_OUI_TYPE))) {
3662 brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n");
3663 goto next;
3664 }
3665
3666 parsed_info = &vndr_ies->ie_info[vndr_ies->count];
3667
3668 /* save vndr ie information */
3669 parsed_info->ie_ptr = (char *)vndrie;
3670 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN;
3671 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie));
3672
3673 vndr_ies->count++;
3674
3675 brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n",
3676 parsed_info->vndrie.oui[0],
3677 parsed_info->vndrie.oui[1],
3678 parsed_info->vndrie.oui[2],
3679 parsed_info->vndrie.oui_type);
3680
3681 if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT)
3682 break;
3683 next:
3684 remaining_len -= (ie->len + TLV_HDR_LEN);
3685 if (remaining_len <= TLV_HDR_LEN)
3686 ie = NULL;
3687 else
3688 ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len +
3689 TLV_HDR_LEN);
3690 }
3691 return 0;
3692 }
3693
3694 static u32
3695 brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd)
3696 {
3697
3698 __le32 iecount_le;
3699 __le32 pktflag_le;
3700
3701 strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1);
3702 iebuf[VNDR_IE_CMD_LEN - 1] = '\0';
3703
3704 iecount_le = cpu_to_le32(1);
3705 memcpy(&iebuf[VNDR_IE_COUNT_OFFSET], &iecount_le, sizeof(iecount_le));
3706
3707 pktflag_le = cpu_to_le32(pktflag);
3708 memcpy(&iebuf[VNDR_IE_PKTFLAG_OFFSET], &pktflag_le, sizeof(pktflag_le));
3709
3710 memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len);
3711
3712 return ie_len + VNDR_IE_HDR_SIZE;
3713 }
3714
3715 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
3716 const u8 *vndr_ie_buf, u32 vndr_ie_len)
3717 {
3718 struct brcmf_if *ifp;
3719 struct vif_saved_ie *saved_ie;
3720 s32 err = 0;
3721 u8 *iovar_ie_buf;
3722 u8 *curr_ie_buf;
3723 u8 *mgmt_ie_buf = NULL;
3724 int mgmt_ie_buf_len;
3725 u32 *mgmt_ie_len;
3726 u32 del_add_ie_buf_len = 0;
3727 u32 total_ie_buf_len = 0;
3728 u32 parsed_ie_buf_len = 0;
3729 struct parsed_vndr_ies old_vndr_ies;
3730 struct parsed_vndr_ies new_vndr_ies;
3731 struct parsed_vndr_ie_info *vndrie_info;
3732 s32 i;
3733 u8 *ptr;
3734 int remained_buf_len;
3735
3736 if (!vif)
3737 return -ENODEV;
3738 ifp = vif->ifp;
3739 saved_ie = &vif->saved_ie;
3740
3741 brcmf_dbg(TRACE, "bssidx %d, pktflag : 0x%02X\n", ifp->bssidx, pktflag);
3742 iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
3743 if (!iovar_ie_buf)
3744 return -ENOMEM;
3745 curr_ie_buf = iovar_ie_buf;
3746 switch (pktflag) {
3747 case BRCMF_VNDR_IE_PRBREQ_FLAG:
3748 mgmt_ie_buf = saved_ie->probe_req_ie;
3749 mgmt_ie_len = &saved_ie->probe_req_ie_len;
3750 mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie);
3751 break;
3752 case BRCMF_VNDR_IE_PRBRSP_FLAG:
3753 mgmt_ie_buf = saved_ie->probe_res_ie;
3754 mgmt_ie_len = &saved_ie->probe_res_ie_len;
3755 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie);
3756 break;
3757 case BRCMF_VNDR_IE_BEACON_FLAG:
3758 mgmt_ie_buf = saved_ie->beacon_ie;
3759 mgmt_ie_len = &saved_ie->beacon_ie_len;
3760 mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie);
3761 break;
3762 case BRCMF_VNDR_IE_ASSOCREQ_FLAG:
3763 mgmt_ie_buf = saved_ie->assoc_req_ie;
3764 mgmt_ie_len = &saved_ie->assoc_req_ie_len;
3765 mgmt_ie_buf_len = sizeof(saved_ie->assoc_req_ie);
3766 break;
3767 default:
3768 err = -EPERM;
3769 brcmf_err("not suitable type\n");
3770 goto exit;
3771 }
3772
3773 if (vndr_ie_len > mgmt_ie_buf_len) {
3774 err = -ENOMEM;
3775 brcmf_err("extra IE size too big\n");
3776 goto exit;
3777 }
3778
3779 /* parse and save new vndr_ie in curr_ie_buff before comparing it */
3780 if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) {
3781 ptr = curr_ie_buf;
3782 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies);
3783 for (i = 0; i < new_vndr_ies.count; i++) {
3784 vndrie_info = &new_vndr_ies.ie_info[i];
3785 memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr,
3786 vndrie_info->ie_len);
3787 parsed_ie_buf_len += vndrie_info->ie_len;
3788 }
3789 }
3790
3791 if (mgmt_ie_buf && *mgmt_ie_len) {
3792 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) &&
3793 (memcmp(mgmt_ie_buf, curr_ie_buf,
3794 parsed_ie_buf_len) == 0)) {
3795 brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n");
3796 goto exit;
3797 }
3798
3799 /* parse old vndr_ie */
3800 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies);
3801
3802 /* make a command to delete old ie */
3803 for (i = 0; i < old_vndr_ies.count; i++) {
3804 vndrie_info = &old_vndr_ies.ie_info[i];
3805
3806 brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n",
3807 vndrie_info->vndrie.id,
3808 vndrie_info->vndrie.len,
3809 vndrie_info->vndrie.oui[0],
3810 vndrie_info->vndrie.oui[1],
3811 vndrie_info->vndrie.oui[2]);
3812
3813 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3814 vndrie_info->ie_ptr,
3815 vndrie_info->ie_len,
3816 "del");
3817 curr_ie_buf += del_add_ie_buf_len;
3818 total_ie_buf_len += del_add_ie_buf_len;
3819 }
3820 }
3821
3822 *mgmt_ie_len = 0;
3823 /* Add if there is any extra IE */
3824 if (mgmt_ie_buf && parsed_ie_buf_len) {
3825 ptr = mgmt_ie_buf;
3826
3827 remained_buf_len = mgmt_ie_buf_len;
3828
3829 /* make a command to add new ie */
3830 for (i = 0; i < new_vndr_ies.count; i++) {
3831 vndrie_info = &new_vndr_ies.ie_info[i];
3832
3833 /* verify remained buf size before copy data */
3834 if (remained_buf_len < (vndrie_info->vndrie.len +
3835 VNDR_IE_VSIE_OFFSET)) {
3836 brcmf_err("no space in mgmt_ie_buf: len left %d",
3837 remained_buf_len);
3838 break;
3839 }
3840 remained_buf_len -= (vndrie_info->ie_len +
3841 VNDR_IE_VSIE_OFFSET);
3842
3843 brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n",
3844 vndrie_info->vndrie.id,
3845 vndrie_info->vndrie.len,
3846 vndrie_info->vndrie.oui[0],
3847 vndrie_info->vndrie.oui[1],
3848 vndrie_info->vndrie.oui[2]);
3849
3850 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3851 vndrie_info->ie_ptr,
3852 vndrie_info->ie_len,
3853 "add");
3854
3855 /* save the parsed IE in wl struct */
3856 memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr,
3857 vndrie_info->ie_len);
3858 *mgmt_ie_len += vndrie_info->ie_len;
3859
3860 curr_ie_buf += del_add_ie_buf_len;
3861 total_ie_buf_len += del_add_ie_buf_len;
3862 }
3863 }
3864 if (total_ie_buf_len) {
3865 err = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf,
3866 total_ie_buf_len);
3867 if (err)
3868 brcmf_err("vndr ie set error : %d\n", err);
3869 }
3870
3871 exit:
3872 kfree(iovar_ie_buf);
3873 return err;
3874 }
3875
3876 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif)
3877 {
3878 s32 pktflags[] = {
3879 BRCMF_VNDR_IE_PRBREQ_FLAG,
3880 BRCMF_VNDR_IE_PRBRSP_FLAG,
3881 BRCMF_VNDR_IE_BEACON_FLAG
3882 };
3883 int i;
3884
3885 for (i = 0; i < ARRAY_SIZE(pktflags); i++)
3886 brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0);
3887
3888 memset(&vif->saved_ie, 0, sizeof(vif->saved_ie));
3889 return 0;
3890 }
3891
3892 static s32
3893 brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif,
3894 struct cfg80211_beacon_data *beacon)
3895 {
3896 s32 err;
3897
3898 /* Set Beacon IEs to FW */
3899 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG,
3900 beacon->tail, beacon->tail_len);
3901 if (err) {
3902 brcmf_err("Set Beacon IE Failed\n");
3903 return err;
3904 }
3905 brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n");
3906
3907 /* Set Probe Response IEs to FW */
3908 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG,
3909 beacon->proberesp_ies,
3910 beacon->proberesp_ies_len);
3911 if (err)
3912 brcmf_err("Set Probe Resp IE Failed\n");
3913 else
3914 brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n");
3915
3916 return err;
3917 }
3918
3919 static s32
3920 brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
3921 struct cfg80211_ap_settings *settings)
3922 {
3923 s32 ie_offset;
3924 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3925 struct brcmf_if *ifp = netdev_priv(ndev);
3926 const struct brcmf_tlv *ssid_ie;
3927 struct brcmf_ssid_le ssid_le;
3928 s32 err = -EPERM;
3929 const struct brcmf_tlv *rsn_ie;
3930 const struct brcmf_vs_tlv *wpa_ie;
3931 struct brcmf_join_params join_params;
3932 enum nl80211_iftype dev_role;
3933 struct brcmf_fil_bss_enable_le bss_enable;
3934 u16 chanspec;
3935 bool mbss;
3936
3937 brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n",
3938 settings->chandef.chan->hw_value,
3939 settings->chandef.center_freq1, settings->chandef.width,
3940 settings->beacon_interval, settings->dtim_period);
3941 brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n",
3942 settings->ssid, settings->ssid_len, settings->auth_type,
3943 settings->inactivity_timeout);
3944
3945 dev_role = ifp->vif->wdev.iftype;
3946 mbss = ifp->vif->mbss;
3947
3948 memset(&ssid_le, 0, sizeof(ssid_le));
3949 if (settings->ssid == NULL || settings->ssid_len == 0) {
3950 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN;
3951 ssid_ie = brcmf_parse_tlvs(
3952 (u8 *)&settings->beacon.head[ie_offset],
3953 settings->beacon.head_len - ie_offset,
3954 WLAN_EID_SSID);
3955 if (!ssid_ie)
3956 return -EINVAL;
3957
3958 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len);
3959 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len);
3960 brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID);
3961 } else {
3962 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len);
3963 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
3964 }
3965
3966 if (!mbss) {
3967 brcmf_set_mpc(ifp, 0);
3968 brcmf_configure_arp_offload(ifp, false);
3969 }
3970
3971 /* find the RSN_IE */
3972 rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
3973 settings->beacon.tail_len, WLAN_EID_RSN);
3974
3975 /* find the WPA_IE */
3976 wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail,
3977 settings->beacon.tail_len);
3978
3979 if ((wpa_ie != NULL || rsn_ie != NULL)) {
3980 brcmf_dbg(TRACE, "WPA(2) IE is found\n");
3981 if (wpa_ie != NULL) {
3982 /* WPA IE */
3983 err = brcmf_configure_wpaie(ifp, wpa_ie, false);
3984 if (err < 0)
3985 goto exit;
3986 } else {
3987 struct brcmf_vs_tlv *tmp_ie;
3988
3989 tmp_ie = (struct brcmf_vs_tlv *)rsn_ie;
3990
3991 /* RSN IE */
3992 err = brcmf_configure_wpaie(ifp, tmp_ie, true);
3993 if (err < 0)
3994 goto exit;
3995 }
3996 } else {
3997 brcmf_dbg(TRACE, "No WPA(2) IEs found\n");
3998 brcmf_configure_opensecurity(ifp);
3999 }
4000
4001 brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon);
4002
4003 if (!mbss) {
4004 chanspec = chandef_to_chanspec(&cfg->d11inf,
4005 &settings->chandef);
4006 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
4007 if (err < 0) {
4008 brcmf_err("Set Channel failed: chspec=%d, %d\n",
4009 chanspec, err);
4010 goto exit;
4011 }
4012
4013 if (settings->beacon_interval) {
4014 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
4015 settings->beacon_interval);
4016 if (err < 0) {
4017 brcmf_err("Beacon Interval Set Error, %d\n",
4018 err);
4019 goto exit;
4020 }
4021 }
4022 if (settings->dtim_period) {
4023 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD,
4024 settings->dtim_period);
4025 if (err < 0) {
4026 brcmf_err("DTIM Interval Set Error, %d\n", err);
4027 goto exit;
4028 }
4029 }
4030
4031 if (dev_role == NL80211_IFTYPE_AP) {
4032 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4033 if (err < 0) {
4034 brcmf_err("BRCMF_C_DOWN error %d\n", err);
4035 goto exit;
4036 }
4037 brcmf_fil_iovar_int_set(ifp, "apsta", 0);
4038 }
4039
4040 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
4041 if (err < 0) {
4042 brcmf_err("SET INFRA error %d\n", err);
4043 goto exit;
4044 }
4045 }
4046 if (dev_role == NL80211_IFTYPE_AP) {
4047 if ((brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) && (!mbss))
4048 brcmf_fil_iovar_int_set(ifp, "mbss", 1);
4049
4050 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
4051 if (err < 0) {
4052 brcmf_err("setting AP mode failed %d\n", err);
4053 goto exit;
4054 }
4055 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
4056 if (err < 0) {
4057 brcmf_err("BRCMF_C_UP error (%d)\n", err);
4058 goto exit;
4059 }
4060
4061 memset(&join_params, 0, sizeof(join_params));
4062 /* join parameters starts with ssid */
4063 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
4064 /* create softap */
4065 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
4066 &join_params, sizeof(join_params));
4067 if (err < 0) {
4068 brcmf_err("SET SSID error (%d)\n", err);
4069 goto exit;
4070 }
4071 brcmf_dbg(TRACE, "AP mode configuration complete\n");
4072 } else {
4073 err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le,
4074 sizeof(ssid_le));
4075 if (err < 0) {
4076 brcmf_err("setting ssid failed %d\n", err);
4077 goto exit;
4078 }
4079 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
4080 bss_enable.enable = cpu_to_le32(1);
4081 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
4082 sizeof(bss_enable));
4083 if (err < 0) {
4084 brcmf_err("bss_enable config failed %d\n", err);
4085 goto exit;
4086 }
4087
4088 brcmf_dbg(TRACE, "GO mode configuration complete\n");
4089 }
4090 clear_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
4091 set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
4092
4093 exit:
4094 if ((err) && (!mbss)) {
4095 brcmf_set_mpc(ifp, 1);
4096 brcmf_configure_arp_offload(ifp, true);
4097 }
4098 return err;
4099 }
4100
4101 static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
4102 {
4103 struct brcmf_if *ifp = netdev_priv(ndev);
4104 s32 err;
4105 struct brcmf_fil_bss_enable_le bss_enable;
4106 struct brcmf_join_params join_params;
4107
4108 brcmf_dbg(TRACE, "Enter\n");
4109
4110 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_AP) {
4111 /* Due to most likely deauths outstanding we sleep */
4112 /* first to make sure they get processed by fw. */
4113 msleep(400);
4114
4115 if (ifp->vif->mbss) {
4116 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4117 return err;
4118 }
4119
4120 memset(&join_params, 0, sizeof(join_params));
4121 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
4122 &join_params, sizeof(join_params));
4123 if (err < 0)
4124 brcmf_err("SET SSID error (%d)\n", err);
4125 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
4126 if (err < 0)
4127 brcmf_err("BRCMF_C_DOWN error %d\n", err);
4128 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0);
4129 if (err < 0)
4130 brcmf_err("setting AP mode failed %d\n", err);
4131 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0);
4132 if (err < 0)
4133 brcmf_err("setting INFRA mode failed %d\n", err);
4134 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS))
4135 brcmf_fil_iovar_int_set(ifp, "mbss", 0);
4136 /* Bring device back up so it can be used again */
4137 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
4138 if (err < 0)
4139 brcmf_err("BRCMF_C_UP error %d\n", err);
4140 } else {
4141 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
4142 bss_enable.enable = cpu_to_le32(0);
4143 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
4144 sizeof(bss_enable));
4145 if (err < 0)
4146 brcmf_err("bss_enable config failed %d\n", err);
4147 }
4148 brcmf_set_mpc(ifp, 1);
4149 brcmf_configure_arp_offload(ifp, true);
4150 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
4151 clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
4152
4153 return err;
4154 }
4155
4156 static s32
4157 brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev,
4158 struct cfg80211_beacon_data *info)
4159 {
4160 struct brcmf_if *ifp = netdev_priv(ndev);
4161 s32 err;
4162
4163 brcmf_dbg(TRACE, "Enter\n");
4164
4165 err = brcmf_config_ap_mgmt_ie(ifp->vif, info);
4166
4167 return err;
4168 }
4169
4170 static int
4171 brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev,
4172 struct station_del_parameters *params)
4173 {
4174 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4175 struct brcmf_scb_val_le scbval;
4176 struct brcmf_if *ifp = netdev_priv(ndev);
4177 s32 err;
4178
4179 if (!params->mac)
4180 return -EFAULT;
4181
4182 brcmf_dbg(TRACE, "Enter %pM\n", params->mac);
4183
4184 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
4185 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
4186 if (!check_vif_up(ifp->vif))
4187 return -EIO;
4188
4189 memcpy(&scbval.ea, params->mac, ETH_ALEN);
4190 scbval.val = cpu_to_le32(WLAN_REASON_DEAUTH_LEAVING);
4191 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON,
4192 &scbval, sizeof(scbval));
4193 if (err)
4194 brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err);
4195
4196 brcmf_dbg(TRACE, "Exit\n");
4197 return err;
4198 }
4199
4200
4201 static void
4202 brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
4203 struct wireless_dev *wdev,
4204 u16 frame_type, bool reg)
4205 {
4206 struct brcmf_cfg80211_vif *vif;
4207 u16 mgmt_type;
4208
4209 brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg);
4210
4211 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
4212 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4213 if (reg)
4214 vif->mgmt_rx_reg |= BIT(mgmt_type);
4215 else
4216 vif->mgmt_rx_reg &= ~BIT(mgmt_type);
4217 }
4218
4219
4220 static int
4221 brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
4222 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
4223 {
4224 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4225 struct ieee80211_channel *chan = params->chan;
4226 const u8 *buf = params->buf;
4227 size_t len = params->len;
4228 const struct ieee80211_mgmt *mgmt;
4229 struct brcmf_cfg80211_vif *vif;
4230 s32 err = 0;
4231 s32 ie_offset;
4232 s32 ie_len;
4233 struct brcmf_fil_action_frame_le *action_frame;
4234 struct brcmf_fil_af_params_le *af_params;
4235 bool ack;
4236 s32 chan_nr;
4237 u32 freq;
4238
4239 brcmf_dbg(TRACE, "Enter\n");
4240
4241 *cookie = 0;
4242
4243 mgmt = (const struct ieee80211_mgmt *)buf;
4244
4245 if (!ieee80211_is_mgmt(mgmt->frame_control)) {
4246 brcmf_err("Driver only allows MGMT packet type\n");
4247 return -EPERM;
4248 }
4249
4250 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4251
4252 if (ieee80211_is_probe_resp(mgmt->frame_control)) {
4253 /* Right now the only reason to get a probe response */
4254 /* is for p2p listen response or for p2p GO from */
4255 /* wpa_supplicant. Unfortunately the probe is send */
4256 /* on primary ndev, while dongle wants it on the p2p */
4257 /* vif. Since this is only reason for a probe */
4258 /* response to be sent, the vif is taken from cfg. */
4259 /* If ever desired to send proberesp for non p2p */
4260 /* response then data should be checked for */
4261 /* "DIRECT-". Note in future supplicant will take */
4262 /* dedicated p2p wdev to do this and then this 'hack'*/
4263 /* is not needed anymore. */
4264 ie_offset = DOT11_MGMT_HDR_LEN +
4265 DOT11_BCN_PRB_FIXED_LEN;
4266 ie_len = len - ie_offset;
4267 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif)
4268 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4269 err = brcmf_vif_set_mgmt_ie(vif,
4270 BRCMF_VNDR_IE_PRBRSP_FLAG,
4271 &buf[ie_offset],
4272 ie_len);
4273 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
4274 GFP_KERNEL);
4275 } else if (ieee80211_is_action(mgmt->frame_control)) {
4276 af_params = kzalloc(sizeof(*af_params), GFP_KERNEL);
4277 if (af_params == NULL) {
4278 brcmf_err("unable to allocate frame\n");
4279 err = -ENOMEM;
4280 goto exit;
4281 }
4282 action_frame = &af_params->action_frame;
4283 /* Add the packet Id */
4284 action_frame->packet_id = cpu_to_le32(*cookie);
4285 /* Add BSSID */
4286 memcpy(&action_frame->da[0], &mgmt->da[0], ETH_ALEN);
4287 memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN);
4288 /* Add the length exepted for 802.11 header */
4289 action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN);
4290 /* Add the channel. Use the one specified as parameter if any or
4291 * the current one (got from the firmware) otherwise
4292 */
4293 if (chan)
4294 freq = chan->center_freq;
4295 else
4296 brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL,
4297 &freq);
4298 chan_nr = ieee80211_frequency_to_channel(freq);
4299 af_params->channel = cpu_to_le32(chan_nr);
4300
4301 memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN],
4302 le16_to_cpu(action_frame->len));
4303
4304 brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n",
4305 *cookie, le16_to_cpu(action_frame->len), freq);
4306
4307 ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg),
4308 af_params);
4309
4310 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack,
4311 GFP_KERNEL);
4312 kfree(af_params);
4313 } else {
4314 brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control);
4315 brcmf_dbg_hex_dump(true, buf, len, "payload, len=%Zu\n", len);
4316 }
4317
4318 exit:
4319 return err;
4320 }
4321
4322
4323 static int
4324 brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
4325 struct wireless_dev *wdev,
4326 u64 cookie)
4327 {
4328 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4329 struct brcmf_cfg80211_vif *vif;
4330 int err = 0;
4331
4332 brcmf_dbg(TRACE, "Enter p2p listen cancel\n");
4333
4334 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4335 if (vif == NULL) {
4336 brcmf_err("No p2p device available for probe response\n");
4337 err = -ENODEV;
4338 goto exit;
4339 }
4340 brcmf_p2p_cancel_remain_on_channel(vif->ifp);
4341 exit:
4342 return err;
4343 }
4344
4345 static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy,
4346 struct wireless_dev *wdev,
4347 enum nl80211_crit_proto_id proto,
4348 u16 duration)
4349 {
4350 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4351 struct brcmf_cfg80211_vif *vif;
4352
4353 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4354
4355 /* only DHCP support for now */
4356 if (proto != NL80211_CRIT_PROTO_DHCP)
4357 return -EINVAL;
4358
4359 /* suppress and abort scanning */
4360 set_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4361 brcmf_abort_scanning(cfg);
4362
4363 return brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_DISABLED, duration);
4364 }
4365
4366 static void brcmf_cfg80211_crit_proto_stop(struct wiphy *wiphy,
4367 struct wireless_dev *wdev)
4368 {
4369 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4370 struct brcmf_cfg80211_vif *vif;
4371
4372 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4373
4374 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
4375 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4376 }
4377
4378 static s32
4379 brcmf_notify_tdls_peer_event(struct brcmf_if *ifp,
4380 const struct brcmf_event_msg *e, void *data)
4381 {
4382 switch (e->reason) {
4383 case BRCMF_E_REASON_TDLS_PEER_DISCOVERED:
4384 brcmf_dbg(TRACE, "TDLS Peer Discovered\n");
4385 break;
4386 case BRCMF_E_REASON_TDLS_PEER_CONNECTED:
4387 brcmf_dbg(TRACE, "TDLS Peer Connected\n");
4388 brcmf_proto_add_tdls_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4389 break;
4390 case BRCMF_E_REASON_TDLS_PEER_DISCONNECTED:
4391 brcmf_dbg(TRACE, "TDLS Peer Disconnected\n");
4392 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4393 break;
4394 }
4395
4396 return 0;
4397 }
4398
4399 static int brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper)
4400 {
4401 int ret;
4402
4403 switch (oper) {
4404 case NL80211_TDLS_DISCOVERY_REQ:
4405 ret = BRCMF_TDLS_MANUAL_EP_DISCOVERY;
4406 break;
4407 case NL80211_TDLS_SETUP:
4408 ret = BRCMF_TDLS_MANUAL_EP_CREATE;
4409 break;
4410 case NL80211_TDLS_TEARDOWN:
4411 ret = BRCMF_TDLS_MANUAL_EP_DELETE;
4412 break;
4413 default:
4414 brcmf_err("unsupported operation: %d\n", oper);
4415 ret = -EOPNOTSUPP;
4416 }
4417 return ret;
4418 }
4419
4420 static int brcmf_cfg80211_tdls_oper(struct wiphy *wiphy,
4421 struct net_device *ndev, const u8 *peer,
4422 enum nl80211_tdls_operation oper)
4423 {
4424 struct brcmf_if *ifp;
4425 struct brcmf_tdls_iovar_le info;
4426 int ret = 0;
4427
4428 ret = brcmf_convert_nl80211_tdls_oper(oper);
4429 if (ret < 0)
4430 return ret;
4431
4432 ifp = netdev_priv(ndev);
4433 memset(&info, 0, sizeof(info));
4434 info.mode = (u8)ret;
4435 if (peer)
4436 memcpy(info.ea, peer, ETH_ALEN);
4437
4438 ret = brcmf_fil_iovar_data_set(ifp, "tdls_endpoint",
4439 &info, sizeof(info));
4440 if (ret < 0)
4441 brcmf_err("tdls_endpoint iovar failed: ret=%d\n", ret);
4442
4443 return ret;
4444 }
4445
4446 static struct cfg80211_ops wl_cfg80211_ops = {
4447 .add_virtual_intf = brcmf_cfg80211_add_iface,
4448 .del_virtual_intf = brcmf_cfg80211_del_iface,
4449 .change_virtual_intf = brcmf_cfg80211_change_iface,
4450 .scan = brcmf_cfg80211_scan,
4451 .set_wiphy_params = brcmf_cfg80211_set_wiphy_params,
4452 .join_ibss = brcmf_cfg80211_join_ibss,
4453 .leave_ibss = brcmf_cfg80211_leave_ibss,
4454 .get_station = brcmf_cfg80211_get_station,
4455 .set_tx_power = brcmf_cfg80211_set_tx_power,
4456 .get_tx_power = brcmf_cfg80211_get_tx_power,
4457 .add_key = brcmf_cfg80211_add_key,
4458 .del_key = brcmf_cfg80211_del_key,
4459 .get_key = brcmf_cfg80211_get_key,
4460 .set_default_key = brcmf_cfg80211_config_default_key,
4461 .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key,
4462 .set_power_mgmt = brcmf_cfg80211_set_power_mgmt,
4463 .connect = brcmf_cfg80211_connect,
4464 .disconnect = brcmf_cfg80211_disconnect,
4465 .suspend = brcmf_cfg80211_suspend,
4466 .resume = brcmf_cfg80211_resume,
4467 .set_pmksa = brcmf_cfg80211_set_pmksa,
4468 .del_pmksa = brcmf_cfg80211_del_pmksa,
4469 .flush_pmksa = brcmf_cfg80211_flush_pmksa,
4470 .start_ap = brcmf_cfg80211_start_ap,
4471 .stop_ap = brcmf_cfg80211_stop_ap,
4472 .change_beacon = brcmf_cfg80211_change_beacon,
4473 .del_station = brcmf_cfg80211_del_station,
4474 .sched_scan_start = brcmf_cfg80211_sched_scan_start,
4475 .sched_scan_stop = brcmf_cfg80211_sched_scan_stop,
4476 .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register,
4477 .mgmt_tx = brcmf_cfg80211_mgmt_tx,
4478 .remain_on_channel = brcmf_p2p_remain_on_channel,
4479 .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel,
4480 .start_p2p_device = brcmf_p2p_start_device,
4481 .stop_p2p_device = brcmf_p2p_stop_device,
4482 .crit_proto_start = brcmf_cfg80211_crit_proto_start,
4483 .crit_proto_stop = brcmf_cfg80211_crit_proto_stop,
4484 .tdls_oper = brcmf_cfg80211_tdls_oper,
4485 };
4486
4487 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
4488 enum nl80211_iftype type,
4489 bool pm_block)
4490 {
4491 struct brcmf_cfg80211_vif *vif_walk;
4492 struct brcmf_cfg80211_vif *vif;
4493 bool mbss;
4494
4495 brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n",
4496 sizeof(*vif));
4497 vif = kzalloc(sizeof(*vif), GFP_KERNEL);
4498 if (!vif)
4499 return ERR_PTR(-ENOMEM);
4500
4501 vif->wdev.wiphy = cfg->wiphy;
4502 vif->wdev.iftype = type;
4503
4504 vif->pm_block = pm_block;
4505 vif->roam_off = -1;
4506
4507 brcmf_init_prof(&vif->profile);
4508
4509 if (type == NL80211_IFTYPE_AP) {
4510 mbss = false;
4511 list_for_each_entry(vif_walk, &cfg->vif_list, list) {
4512 if (vif_walk->wdev.iftype == NL80211_IFTYPE_AP) {
4513 mbss = true;
4514 break;
4515 }
4516 }
4517 vif->mbss = mbss;
4518 }
4519
4520 list_add_tail(&vif->list, &cfg->vif_list);
4521 return vif;
4522 }
4523
4524 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif)
4525 {
4526 list_del(&vif->list);
4527 kfree(vif);
4528 }
4529
4530 void brcmf_cfg80211_free_netdev(struct net_device *ndev)
4531 {
4532 struct brcmf_cfg80211_vif *vif;
4533 struct brcmf_if *ifp;
4534
4535 ifp = netdev_priv(ndev);
4536 vif = ifp->vif;
4537
4538 brcmf_free_vif(vif);
4539 free_netdev(ndev);
4540 }
4541
4542 static bool brcmf_is_linkup(const struct brcmf_event_msg *e)
4543 {
4544 u32 event = e->event_code;
4545 u32 status = e->status;
4546
4547 if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) {
4548 brcmf_dbg(CONN, "Processing set ssid\n");
4549 return true;
4550 }
4551
4552 return false;
4553 }
4554
4555 static bool brcmf_is_linkdown(const struct brcmf_event_msg *e)
4556 {
4557 u32 event = e->event_code;
4558 u16 flags = e->flags;
4559
4560 if ((event == BRCMF_E_DEAUTH) || (event == BRCMF_E_DEAUTH_IND) ||
4561 (event == BRCMF_E_DISASSOC_IND) ||
4562 ((event == BRCMF_E_LINK) && (!(flags & BRCMF_EVENT_MSG_LINK)))) {
4563 brcmf_dbg(CONN, "Processing link down\n");
4564 return true;
4565 }
4566 return false;
4567 }
4568
4569 static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg,
4570 const struct brcmf_event_msg *e)
4571 {
4572 u32 event = e->event_code;
4573 u32 status = e->status;
4574
4575 if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) {
4576 brcmf_dbg(CONN, "Processing Link %s & no network found\n",
4577 e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down");
4578 return true;
4579 }
4580
4581 if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) {
4582 brcmf_dbg(CONN, "Processing connecting & no network found\n");
4583 return true;
4584 }
4585
4586 return false;
4587 }
4588
4589 static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg)
4590 {
4591 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4592
4593 kfree(conn_info->req_ie);
4594 conn_info->req_ie = NULL;
4595 conn_info->req_ie_len = 0;
4596 kfree(conn_info->resp_ie);
4597 conn_info->resp_ie = NULL;
4598 conn_info->resp_ie_len = 0;
4599 }
4600
4601 static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg,
4602 struct brcmf_if *ifp)
4603 {
4604 struct brcmf_cfg80211_assoc_ielen_le *assoc_info;
4605 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4606 u32 req_len;
4607 u32 resp_len;
4608 s32 err = 0;
4609
4610 brcmf_clear_assoc_ies(cfg);
4611
4612 err = brcmf_fil_iovar_data_get(ifp, "assoc_info",
4613 cfg->extra_buf, WL_ASSOC_INFO_MAX);
4614 if (err) {
4615 brcmf_err("could not get assoc info (%d)\n", err);
4616 return err;
4617 }
4618 assoc_info =
4619 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf;
4620 req_len = le32_to_cpu(assoc_info->req_len);
4621 resp_len = le32_to_cpu(assoc_info->resp_len);
4622 if (req_len) {
4623 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies",
4624 cfg->extra_buf,
4625 WL_ASSOC_INFO_MAX);
4626 if (err) {
4627 brcmf_err("could not get assoc req (%d)\n", err);
4628 return err;
4629 }
4630 conn_info->req_ie_len = req_len;
4631 conn_info->req_ie =
4632 kmemdup(cfg->extra_buf, conn_info->req_ie_len,
4633 GFP_KERNEL);
4634 } else {
4635 conn_info->req_ie_len = 0;
4636 conn_info->req_ie = NULL;
4637 }
4638 if (resp_len) {
4639 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies",
4640 cfg->extra_buf,
4641 WL_ASSOC_INFO_MAX);
4642 if (err) {
4643 brcmf_err("could not get assoc resp (%d)\n", err);
4644 return err;
4645 }
4646 conn_info->resp_ie_len = resp_len;
4647 conn_info->resp_ie =
4648 kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
4649 GFP_KERNEL);
4650 } else {
4651 conn_info->resp_ie_len = 0;
4652 conn_info->resp_ie = NULL;
4653 }
4654 brcmf_dbg(CONN, "req len (%d) resp len (%d)\n",
4655 conn_info->req_ie_len, conn_info->resp_ie_len);
4656
4657 return err;
4658 }
4659
4660 static s32
4661 brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg,
4662 struct net_device *ndev,
4663 const struct brcmf_event_msg *e)
4664 {
4665 struct brcmf_if *ifp = netdev_priv(ndev);
4666 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4667 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4668 struct wiphy *wiphy = cfg_to_wiphy(cfg);
4669 struct ieee80211_channel *notify_channel = NULL;
4670 struct ieee80211_supported_band *band;
4671 struct brcmf_bss_info_le *bi;
4672 struct brcmu_chan ch;
4673 u32 freq;
4674 s32 err = 0;
4675 u8 *buf;
4676
4677 brcmf_dbg(TRACE, "Enter\n");
4678
4679 brcmf_get_assoc_ies(cfg, ifp);
4680 memcpy(profile->bssid, e->addr, ETH_ALEN);
4681 brcmf_update_bss_info(cfg, ifp);
4682
4683 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
4684 if (buf == NULL) {
4685 err = -ENOMEM;
4686 goto done;
4687 }
4688
4689 /* data sent to dongle has to be little endian */
4690 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
4691 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
4692 buf, WL_BSS_INFO_MAX);
4693
4694 if (err)
4695 goto done;
4696
4697 bi = (struct brcmf_bss_info_le *)(buf + 4);
4698 ch.chspec = le16_to_cpu(bi->chanspec);
4699 cfg->d11inf.decchspec(&ch);
4700
4701 if (ch.band == BRCMU_CHAN_BAND_2G)
4702 band = wiphy->bands[IEEE80211_BAND_2GHZ];
4703 else
4704 band = wiphy->bands[IEEE80211_BAND_5GHZ];
4705
4706 freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
4707 notify_channel = ieee80211_get_channel(wiphy, freq);
4708
4709 done:
4710 kfree(buf);
4711 cfg80211_roamed(ndev, notify_channel, (u8 *)profile->bssid,
4712 conn_info->req_ie, conn_info->req_ie_len,
4713 conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL);
4714 brcmf_dbg(CONN, "Report roaming result\n");
4715
4716 set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
4717 brcmf_dbg(TRACE, "Exit\n");
4718 return err;
4719 }
4720
4721 static s32
4722 brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
4723 struct net_device *ndev, const struct brcmf_event_msg *e,
4724 bool completed)
4725 {
4726 struct brcmf_if *ifp = netdev_priv(ndev);
4727 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4728 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4729
4730 brcmf_dbg(TRACE, "Enter\n");
4731
4732 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4733 &ifp->vif->sme_state)) {
4734 if (completed) {
4735 brcmf_get_assoc_ies(cfg, ifp);
4736 memcpy(profile->bssid, e->addr, ETH_ALEN);
4737 brcmf_update_bss_info(cfg, ifp);
4738 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4739 &ifp->vif->sme_state);
4740 }
4741 cfg80211_connect_result(ndev,
4742 (u8 *)profile->bssid,
4743 conn_info->req_ie,
4744 conn_info->req_ie_len,
4745 conn_info->resp_ie,
4746 conn_info->resp_ie_len,
4747 completed ? WLAN_STATUS_SUCCESS :
4748 WLAN_STATUS_AUTH_TIMEOUT,
4749 GFP_KERNEL);
4750 brcmf_dbg(CONN, "Report connect result - connection %s\n",
4751 completed ? "succeeded" : "failed");
4752 }
4753 brcmf_dbg(TRACE, "Exit\n");
4754 return 0;
4755 }
4756
4757 static s32
4758 brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg,
4759 struct net_device *ndev,
4760 const struct brcmf_event_msg *e, void *data)
4761 {
4762 struct brcmf_if *ifp = netdev_priv(ndev);
4763 static int generation;
4764 u32 event = e->event_code;
4765 u32 reason = e->reason;
4766 struct station_info sinfo;
4767
4768 brcmf_dbg(CONN, "event %d, reason %d\n", event, reason);
4769 if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS &&
4770 ndev != cfg_to_ndev(cfg)) {
4771 brcmf_dbg(CONN, "AP mode link down\n");
4772 complete(&cfg->vif_disabled);
4773 if (ifp->vif->mbss)
4774 brcmf_remove_interface(ifp->drvr, ifp->bssidx);
4775 return 0;
4776 }
4777
4778 if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) &&
4779 (reason == BRCMF_E_STATUS_SUCCESS)) {
4780 memset(&sinfo, 0, sizeof(sinfo));
4781 sinfo.filled = STATION_INFO_ASSOC_REQ_IES;
4782 if (!data) {
4783 brcmf_err("No IEs present in ASSOC/REASSOC_IND");
4784 return -EINVAL;
4785 }
4786 sinfo.assoc_req_ies = data;
4787 sinfo.assoc_req_ies_len = e->datalen;
4788 generation++;
4789 sinfo.generation = generation;
4790 cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_KERNEL);
4791 } else if ((event == BRCMF_E_DISASSOC_IND) ||
4792 (event == BRCMF_E_DEAUTH_IND) ||
4793 (event == BRCMF_E_DEAUTH)) {
4794 cfg80211_del_sta(ndev, e->addr, GFP_KERNEL);
4795 }
4796 return 0;
4797 }
4798
4799 static s32
4800 brcmf_notify_connect_status(struct brcmf_if *ifp,
4801 const struct brcmf_event_msg *e, void *data)
4802 {
4803 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4804 struct net_device *ndev = ifp->ndev;
4805 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4806 struct ieee80211_channel *chan;
4807 s32 err = 0;
4808
4809 if ((e->event_code == BRCMF_E_DEAUTH) ||
4810 (e->event_code == BRCMF_E_DEAUTH_IND) ||
4811 (e->event_code == BRCMF_E_DISASSOC_IND) ||
4812 ((e->event_code == BRCMF_E_LINK) && (!e->flags))) {
4813 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4814 }
4815
4816 if (brcmf_is_apmode(ifp->vif)) {
4817 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data);
4818 } else if (brcmf_is_linkup(e)) {
4819 brcmf_dbg(CONN, "Linkup\n");
4820 if (brcmf_is_ibssmode(ifp->vif)) {
4821 chan = ieee80211_get_channel(cfg->wiphy, cfg->channel);
4822 memcpy(profile->bssid, e->addr, ETH_ALEN);
4823 wl_inform_ibss(cfg, ndev, e->addr);
4824 cfg80211_ibss_joined(ndev, e->addr, chan, GFP_KERNEL);
4825 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4826 &ifp->vif->sme_state);
4827 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4828 &ifp->vif->sme_state);
4829 } else
4830 brcmf_bss_connect_done(cfg, ndev, e, true);
4831 } else if (brcmf_is_linkdown(e)) {
4832 brcmf_dbg(CONN, "Linkdown\n");
4833 if (!brcmf_is_ibssmode(ifp->vif)) {
4834 brcmf_bss_connect_done(cfg, ndev, e, false);
4835 }
4836 brcmf_link_down(ifp->vif);
4837 brcmf_init_prof(ndev_to_prof(ndev));
4838 if (ndev != cfg_to_ndev(cfg))
4839 complete(&cfg->vif_disabled);
4840 } else if (brcmf_is_nonetwork(cfg, e)) {
4841 if (brcmf_is_ibssmode(ifp->vif))
4842 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4843 &ifp->vif->sme_state);
4844 else
4845 brcmf_bss_connect_done(cfg, ndev, e, false);
4846 }
4847
4848 return err;
4849 }
4850
4851 static s32
4852 brcmf_notify_roaming_status(struct brcmf_if *ifp,
4853 const struct brcmf_event_msg *e, void *data)
4854 {
4855 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4856 u32 event = e->event_code;
4857 u32 status = e->status;
4858
4859 if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) {
4860 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state))
4861 brcmf_bss_roaming_done(cfg, ifp->ndev, e);
4862 else
4863 brcmf_bss_connect_done(cfg, ifp->ndev, e, true);
4864 }
4865
4866 return 0;
4867 }
4868
4869 static s32
4870 brcmf_notify_mic_status(struct brcmf_if *ifp,
4871 const struct brcmf_event_msg *e, void *data)
4872 {
4873 u16 flags = e->flags;
4874 enum nl80211_key_type key_type;
4875
4876 if (flags & BRCMF_EVENT_MSG_GROUP)
4877 key_type = NL80211_KEYTYPE_GROUP;
4878 else
4879 key_type = NL80211_KEYTYPE_PAIRWISE;
4880
4881 cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1,
4882 NULL, GFP_KERNEL);
4883
4884 return 0;
4885 }
4886
4887 static s32 brcmf_notify_vif_event(struct brcmf_if *ifp,
4888 const struct brcmf_event_msg *e, void *data)
4889 {
4890 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4891 struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data;
4892 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
4893 struct brcmf_cfg80211_vif *vif;
4894
4895 brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfg %u\n",
4896 ifevent->action, ifevent->flags, ifevent->ifidx,
4897 ifevent->bssidx);
4898
4899 mutex_lock(&event->vif_event_lock);
4900 event->action = ifevent->action;
4901 vif = event->vif;
4902
4903 switch (ifevent->action) {
4904 case BRCMF_E_IF_ADD:
4905 /* waiting process may have timed out */
4906 if (!cfg->vif_event.vif) {
4907 mutex_unlock(&event->vif_event_lock);
4908 return -EBADF;
4909 }
4910
4911 ifp->vif = vif;
4912 vif->ifp = ifp;
4913 if (ifp->ndev) {
4914 vif->wdev.netdev = ifp->ndev;
4915 ifp->ndev->ieee80211_ptr = &vif->wdev;
4916 SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy));
4917 }
4918 mutex_unlock(&event->vif_event_lock);
4919 wake_up(&event->vif_wq);
4920 return 0;
4921
4922 case BRCMF_E_IF_DEL:
4923 mutex_unlock(&event->vif_event_lock);
4924 /* event may not be upon user request */
4925 if (brcmf_cfg80211_vif_event_armed(cfg))
4926 wake_up(&event->vif_wq);
4927 return 0;
4928
4929 case BRCMF_E_IF_CHANGE:
4930 mutex_unlock(&event->vif_event_lock);
4931 wake_up(&event->vif_wq);
4932 return 0;
4933
4934 default:
4935 mutex_unlock(&event->vif_event_lock);
4936 break;
4937 }
4938 return -EINVAL;
4939 }
4940
4941 static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf)
4942 {
4943 conf->frag_threshold = (u32)-1;
4944 conf->rts_threshold = (u32)-1;
4945 conf->retry_short = (u32)-1;
4946 conf->retry_long = (u32)-1;
4947 conf->tx_power = -1;
4948 }
4949
4950 static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg)
4951 {
4952 brcmf_fweh_register(cfg->pub, BRCMF_E_LINK,
4953 brcmf_notify_connect_status);
4954 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND,
4955 brcmf_notify_connect_status);
4956 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH,
4957 brcmf_notify_connect_status);
4958 brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND,
4959 brcmf_notify_connect_status);
4960 brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND,
4961 brcmf_notify_connect_status);
4962 brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND,
4963 brcmf_notify_connect_status);
4964 brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM,
4965 brcmf_notify_roaming_status);
4966 brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR,
4967 brcmf_notify_mic_status);
4968 brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID,
4969 brcmf_notify_connect_status);
4970 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND,
4971 brcmf_notify_sched_scan_results);
4972 brcmf_fweh_register(cfg->pub, BRCMF_E_IF,
4973 brcmf_notify_vif_event);
4974 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG,
4975 brcmf_p2p_notify_rx_mgmt_p2p_probereq);
4976 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE,
4977 brcmf_p2p_notify_listen_complete);
4978 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX,
4979 brcmf_p2p_notify_action_frame_rx);
4980 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE,
4981 brcmf_p2p_notify_action_tx_complete);
4982 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE,
4983 brcmf_p2p_notify_action_tx_complete);
4984 }
4985
4986 static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg)
4987 {
4988 kfree(cfg->conf);
4989 cfg->conf = NULL;
4990 kfree(cfg->escan_ioctl_buf);
4991 cfg->escan_ioctl_buf = NULL;
4992 kfree(cfg->extra_buf);
4993 cfg->extra_buf = NULL;
4994 kfree(cfg->pmk_list);
4995 cfg->pmk_list = NULL;
4996 }
4997
4998 static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg)
4999 {
5000 cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL);
5001 if (!cfg->conf)
5002 goto init_priv_mem_out;
5003 cfg->escan_ioctl_buf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5004 if (!cfg->escan_ioctl_buf)
5005 goto init_priv_mem_out;
5006 cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
5007 if (!cfg->extra_buf)
5008 goto init_priv_mem_out;
5009 cfg->pmk_list = kzalloc(sizeof(*cfg->pmk_list), GFP_KERNEL);
5010 if (!cfg->pmk_list)
5011 goto init_priv_mem_out;
5012
5013 return 0;
5014
5015 init_priv_mem_out:
5016 brcmf_deinit_priv_mem(cfg);
5017
5018 return -ENOMEM;
5019 }
5020
5021 static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg)
5022 {
5023 s32 err = 0;
5024
5025 cfg->scan_request = NULL;
5026 cfg->pwr_save = true;
5027 cfg->active_scan = true; /* we do active scan per default */
5028 cfg->dongle_up = false; /* dongle is not up yet */
5029 err = brcmf_init_priv_mem(cfg);
5030 if (err)
5031 return err;
5032 brcmf_register_event_handlers(cfg);
5033 mutex_init(&cfg->usr_sync);
5034 brcmf_init_escan(cfg);
5035 brcmf_init_conf(cfg->conf);
5036 init_completion(&cfg->vif_disabled);
5037 return err;
5038 }
5039
5040 static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg)
5041 {
5042 cfg->dongle_up = false; /* dongle down */
5043 brcmf_abort_scanning(cfg);
5044 brcmf_deinit_priv_mem(cfg);
5045 }
5046
5047 static void init_vif_event(struct brcmf_cfg80211_vif_event *event)
5048 {
5049 init_waitqueue_head(&event->vif_wq);
5050 mutex_init(&event->vif_event_lock);
5051 }
5052
5053 static s32
5054 brcmf_dongle_roam(struct brcmf_if *ifp, u32 bcn_timeout)
5055 {
5056 s32 err = 0;
5057 __le32 roamtrigger[2];
5058 __le32 roam_delta[2];
5059
5060 /*
5061 * Setup timeout if Beacons are lost and roam is
5062 * off to report link down
5063 */
5064 if (brcmf_roamoff) {
5065 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout);
5066 if (err) {
5067 brcmf_err("bcn_timeout error (%d)\n", err);
5068 goto dongle_rom_out;
5069 }
5070 }
5071
5072 /*
5073 * Enable/Disable built-in roaming to allow supplicant
5074 * to take care of roaming
5075 */
5076 brcmf_dbg(INFO, "Internal Roaming = %s\n",
5077 brcmf_roamoff ? "Off" : "On");
5078 err = brcmf_fil_iovar_int_set(ifp, "roam_off", !!(brcmf_roamoff));
5079 if (err) {
5080 brcmf_err("roam_off error (%d)\n", err);
5081 goto dongle_rom_out;
5082 }
5083
5084 roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL);
5085 roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL);
5086 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER,
5087 (void *)roamtrigger, sizeof(roamtrigger));
5088 if (err) {
5089 brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err);
5090 goto dongle_rom_out;
5091 }
5092
5093 roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA);
5094 roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL);
5095 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA,
5096 (void *)roam_delta, sizeof(roam_delta));
5097 if (err) {
5098 brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err);
5099 goto dongle_rom_out;
5100 }
5101
5102 dongle_rom_out:
5103 return err;
5104 }
5105
5106 static s32
5107 brcmf_dongle_scantime(struct brcmf_if *ifp, s32 scan_assoc_time,
5108 s32 scan_unassoc_time, s32 scan_passive_time)
5109 {
5110 s32 err = 0;
5111
5112 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
5113 scan_assoc_time);
5114 if (err) {
5115 if (err == -EOPNOTSUPP)
5116 brcmf_dbg(INFO, "Scan assoc time is not supported\n");
5117 else
5118 brcmf_err("Scan assoc time error (%d)\n", err);
5119 goto dongle_scantime_out;
5120 }
5121 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
5122 scan_unassoc_time);
5123 if (err) {
5124 if (err == -EOPNOTSUPP)
5125 brcmf_dbg(INFO, "Scan unassoc time is not supported\n");
5126 else
5127 brcmf_err("Scan unassoc time error (%d)\n", err);
5128 goto dongle_scantime_out;
5129 }
5130
5131 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME,
5132 scan_passive_time);
5133 if (err) {
5134 if (err == -EOPNOTSUPP)
5135 brcmf_dbg(INFO, "Scan passive time is not supported\n");
5136 else
5137 brcmf_err("Scan passive time error (%d)\n", err);
5138 goto dongle_scantime_out;
5139 }
5140
5141 dongle_scantime_out:
5142 return err;
5143 }
5144
5145 /* Filter the list of channels received from firmware counting only
5146 * the 20MHz channels. The wiphy band data only needs those which get
5147 * flagged to indicate if they can take part in higher bandwidth.
5148 */
5149 static void brcmf_count_20mhz_channels(struct brcmf_cfg80211_info *cfg,
5150 struct brcmf_chanspec_list *chlist,
5151 u32 chcnt[])
5152 {
5153 u32 total = le32_to_cpu(chlist->count);
5154 struct brcmu_chan ch;
5155 int i;
5156
5157 for (i = 0; i < total; i++) {
5158 ch.chspec = (u16)le32_to_cpu(chlist->element[i]);
5159 cfg->d11inf.decchspec(&ch);
5160
5161 /* Firmware gives a ordered list. We skip non-20MHz
5162 * channels is 2G. For 5G we can abort upon reaching
5163 * a non-20MHz channel in the list.
5164 */
5165 if (ch.bw != BRCMU_CHAN_BW_20) {
5166 if (ch.band == BRCMU_CHAN_BAND_5G)
5167 break;
5168 else
5169 continue;
5170 }
5171
5172 if (ch.band == BRCMU_CHAN_BAND_2G)
5173 chcnt[0] += 1;
5174 else if (ch.band == BRCMU_CHAN_BAND_5G)
5175 chcnt[1] += 1;
5176 }
5177 }
5178
5179 static void brcmf_update_bw40_channel_flag(struct ieee80211_channel *channel,
5180 struct brcmu_chan *ch)
5181 {
5182 u32 ht40_flag;
5183
5184 ht40_flag = channel->flags & IEEE80211_CHAN_NO_HT40;
5185 if (ch->sb == BRCMU_CHAN_SB_U) {
5186 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5187 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5188 channel->flags |= IEEE80211_CHAN_NO_HT40PLUS;
5189 } else {
5190 /* It should be one of
5191 * IEEE80211_CHAN_NO_HT40 or
5192 * IEEE80211_CHAN_NO_HT40PLUS
5193 */
5194 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5195 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5196 channel->flags |= IEEE80211_CHAN_NO_HT40MINUS;
5197 }
5198 }
5199
5200 static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg,
5201 u32 bw_cap[])
5202 {
5203 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5204 struct ieee80211_supported_band *band;
5205 struct ieee80211_channel *channel;
5206 struct wiphy *wiphy;
5207 struct brcmf_chanspec_list *list;
5208 struct brcmu_chan ch;
5209 int err;
5210 u8 *pbuf;
5211 u32 i, j;
5212 u32 total;
5213 u32 chaninfo;
5214 u32 chcnt[2] = { 0, 0 };
5215 u32 index;
5216
5217 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5218
5219 if (pbuf == NULL)
5220 return -ENOMEM;
5221
5222 list = (struct brcmf_chanspec_list *)pbuf;
5223
5224 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5225 BRCMF_DCMD_MEDLEN);
5226 if (err) {
5227 brcmf_err("get chanspecs error (%d)\n", err);
5228 goto fail_pbuf;
5229 }
5230
5231 brcmf_count_20mhz_channels(cfg, list, chcnt);
5232 wiphy = cfg_to_wiphy(cfg);
5233 if (chcnt[0]) {
5234 band = kmemdup(&__wl_band_2ghz, sizeof(__wl_band_2ghz),
5235 GFP_KERNEL);
5236 if (band == NULL) {
5237 err = -ENOMEM;
5238 goto fail_pbuf;
5239 }
5240 band->channels = kcalloc(chcnt[0], sizeof(*channel),
5241 GFP_KERNEL);
5242 if (band->channels == NULL) {
5243 kfree(band);
5244 err = -ENOMEM;
5245 goto fail_pbuf;
5246 }
5247 band->n_channels = 0;
5248 wiphy->bands[IEEE80211_BAND_2GHZ] = band;
5249 }
5250 if (chcnt[1]) {
5251 band = kmemdup(&__wl_band_5ghz_a, sizeof(__wl_band_5ghz_a),
5252 GFP_KERNEL);
5253 if (band == NULL) {
5254 err = -ENOMEM;
5255 goto fail_band2g;
5256 }
5257 band->channels = kcalloc(chcnt[1], sizeof(*channel),
5258 GFP_KERNEL);
5259 if (band->channels == NULL) {
5260 kfree(band);
5261 err = -ENOMEM;
5262 goto fail_band2g;
5263 }
5264 band->n_channels = 0;
5265 wiphy->bands[IEEE80211_BAND_5GHZ] = band;
5266 }
5267
5268 total = le32_to_cpu(list->count);
5269 for (i = 0; i < total; i++) {
5270 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5271 cfg->d11inf.decchspec(&ch);
5272
5273 if (ch.band == BRCMU_CHAN_BAND_2G) {
5274 band = wiphy->bands[IEEE80211_BAND_2GHZ];
5275 } else if (ch.band == BRCMU_CHAN_BAND_5G) {
5276 band = wiphy->bands[IEEE80211_BAND_5GHZ];
5277 } else {
5278 brcmf_err("Invalid channel Spec. 0x%x.\n", ch.chspec);
5279 continue;
5280 }
5281 if (!(bw_cap[band->band] & WLC_BW_40MHZ_BIT) &&
5282 ch.bw == BRCMU_CHAN_BW_40)
5283 continue;
5284 if (!(bw_cap[band->band] & WLC_BW_80MHZ_BIT) &&
5285 ch.bw == BRCMU_CHAN_BW_80)
5286 continue;
5287
5288 channel = band->channels;
5289 index = band->n_channels;
5290 for (j = 0; j < band->n_channels; j++) {
5291 if (channel[j].hw_value == ch.chnum) {
5292 index = j;
5293 break;
5294 }
5295 }
5296 channel[index].center_freq =
5297 ieee80211_channel_to_frequency(ch.chnum, band->band);
5298 channel[index].hw_value = ch.chnum;
5299
5300 /* assuming the chanspecs order is HT20,
5301 * HT40 upper, HT40 lower, and VHT80.
5302 */
5303 if (ch.bw == BRCMU_CHAN_BW_80) {
5304 channel[index].flags &= ~IEEE80211_CHAN_NO_80MHZ;
5305 } else if (ch.bw == BRCMU_CHAN_BW_40) {
5306 brcmf_update_bw40_channel_flag(&channel[index], &ch);
5307 } else {
5308 /* disable other bandwidths for now as mentioned
5309 * order assure they are enabled for subsequent
5310 * chanspecs.
5311 */
5312 channel[index].flags = IEEE80211_CHAN_NO_HT40 |
5313 IEEE80211_CHAN_NO_80MHZ;
5314 ch.bw = BRCMU_CHAN_BW_20;
5315 cfg->d11inf.encchspec(&ch);
5316 chaninfo = ch.chspec;
5317 err = brcmf_fil_bsscfg_int_get(ifp, "per_chan_info",
5318 &chaninfo);
5319 if (!err) {
5320 if (chaninfo & WL_CHAN_RADAR)
5321 channel[index].flags |=
5322 (IEEE80211_CHAN_RADAR |
5323 IEEE80211_CHAN_NO_IR);
5324 if (chaninfo & WL_CHAN_PASSIVE)
5325 channel[index].flags |=
5326 IEEE80211_CHAN_NO_IR;
5327 }
5328 }
5329 if (index == band->n_channels)
5330 band->n_channels++;
5331 }
5332 kfree(pbuf);
5333 return 0;
5334
5335 fail_band2g:
5336 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
5337 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
5338 wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
5339 fail_pbuf:
5340 kfree(pbuf);
5341 return err;
5342 }
5343
5344 static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg)
5345 {
5346 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5347 struct ieee80211_supported_band *band;
5348 struct brcmf_fil_bwcap_le band_bwcap;
5349 struct brcmf_chanspec_list *list;
5350 u8 *pbuf;
5351 u32 val;
5352 int err;
5353 struct brcmu_chan ch;
5354 u32 num_chan;
5355 int i, j;
5356
5357 /* verify support for bw_cap command */
5358 val = WLC_BAND_5G;
5359 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &val);
5360
5361 if (!err) {
5362 /* only set 2G bandwidth using bw_cap command */
5363 band_bwcap.band = cpu_to_le32(WLC_BAND_2G);
5364 band_bwcap.bw_cap = cpu_to_le32(WLC_BW_CAP_40MHZ);
5365 err = brcmf_fil_iovar_data_set(ifp, "bw_cap", &band_bwcap,
5366 sizeof(band_bwcap));
5367 } else {
5368 brcmf_dbg(INFO, "fallback to mimo_bw_cap\n");
5369 val = WLC_N_BW_40ALL;
5370 err = brcmf_fil_iovar_int_set(ifp, "mimo_bw_cap", val);
5371 }
5372
5373 if (!err) {
5374 /* update channel info in 2G band */
5375 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5376
5377 if (pbuf == NULL)
5378 return -ENOMEM;
5379
5380 ch.band = BRCMU_CHAN_BAND_2G;
5381 ch.bw = BRCMU_CHAN_BW_40;
5382 ch.sb = BRCMU_CHAN_SB_NONE;
5383 ch.chnum = 0;
5384 cfg->d11inf.encchspec(&ch);
5385
5386 /* pass encoded chanspec in query */
5387 *(__le16 *)pbuf = cpu_to_le16(ch.chspec);
5388
5389 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5390 BRCMF_DCMD_MEDLEN);
5391 if (err) {
5392 brcmf_err("get chanspecs error (%d)\n", err);
5393 kfree(pbuf);
5394 return err;
5395 }
5396
5397 band = cfg_to_wiphy(cfg)->bands[IEEE80211_BAND_2GHZ];
5398 list = (struct brcmf_chanspec_list *)pbuf;
5399 num_chan = le32_to_cpu(list->count);
5400 for (i = 0; i < num_chan; i++) {
5401 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5402 cfg->d11inf.decchspec(&ch);
5403 if (WARN_ON(ch.band != BRCMU_CHAN_BAND_2G))
5404 continue;
5405 if (WARN_ON(ch.bw != BRCMU_CHAN_BW_40))
5406 continue;
5407 for (j = 0; j < band->n_channels; j++) {
5408 if (band->channels[j].hw_value == ch.chnum)
5409 break;
5410 }
5411 if (WARN_ON(j == band->n_channels))
5412 continue;
5413
5414 brcmf_update_bw40_channel_flag(&band->channels[j], &ch);
5415 }
5416 kfree(pbuf);
5417 }
5418 return err;
5419 }
5420
5421 static void brcmf_get_bwcap(struct brcmf_if *ifp, u32 bw_cap[])
5422 {
5423 u32 band, mimo_bwcap;
5424 int err;
5425
5426 band = WLC_BAND_2G;
5427 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5428 if (!err) {
5429 bw_cap[IEEE80211_BAND_2GHZ] = band;
5430 band = WLC_BAND_5G;
5431 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5432 if (!err) {
5433 bw_cap[IEEE80211_BAND_5GHZ] = band;
5434 return;
5435 }
5436 WARN_ON(1);
5437 return;
5438 }
5439 brcmf_dbg(INFO, "fallback to mimo_bw_cap info\n");
5440 mimo_bwcap = 0;
5441 err = brcmf_fil_iovar_int_get(ifp, "mimo_bw_cap", &mimo_bwcap);
5442 if (err)
5443 /* assume 20MHz if firmware does not give a clue */
5444 mimo_bwcap = WLC_N_BW_20ALL;
5445
5446 switch (mimo_bwcap) {
5447 case WLC_N_BW_40ALL:
5448 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_40MHZ_BIT;
5449 /* fall-thru */
5450 case WLC_N_BW_20IN2G_40IN5G:
5451 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_40MHZ_BIT;
5452 /* fall-thru */
5453 case WLC_N_BW_20ALL:
5454 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_20MHZ_BIT;
5455 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_20MHZ_BIT;
5456 break;
5457 default:
5458 brcmf_err("invalid mimo_bw_cap value\n");
5459 }
5460 }
5461
5462 static void brcmf_update_ht_cap(struct ieee80211_supported_band *band,
5463 u32 bw_cap[2], u32 nchain)
5464 {
5465 band->ht_cap.ht_supported = true;
5466 if (bw_cap[band->band] & WLC_BW_40MHZ_BIT) {
5467 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
5468 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5469 }
5470 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
5471 band->ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
5472 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
5473 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
5474 memset(band->ht_cap.mcs.rx_mask, 0xff, nchain);
5475 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
5476 }
5477
5478 static __le16 brcmf_get_mcs_map(u32 nchain, enum ieee80211_vht_mcs_support supp)
5479 {
5480 u16 mcs_map;
5481 int i;
5482
5483 for (i = 0, mcs_map = 0xFFFF; i < nchain; i++)
5484 mcs_map = (mcs_map << 2) | supp;
5485
5486 return cpu_to_le16(mcs_map);
5487 }
5488
5489 static void brcmf_update_vht_cap(struct ieee80211_supported_band *band,
5490 u32 bw_cap[2], u32 nchain)
5491 {
5492 __le16 mcs_map;
5493
5494 /* not allowed in 2.4G band */
5495 if (band->band == IEEE80211_BAND_2GHZ)
5496 return;
5497
5498 band->vht_cap.vht_supported = true;
5499 /* 80MHz is mandatory */
5500 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_80;
5501 if (bw_cap[band->band] & WLC_BW_160MHZ_BIT) {
5502 band->vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
5503 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_160;
5504 }
5505 /* all support 256-QAM */
5506 mcs_map = brcmf_get_mcs_map(nchain, IEEE80211_VHT_MCS_SUPPORT_0_9);
5507 band->vht_cap.vht_mcs.rx_mcs_map = mcs_map;
5508 band->vht_cap.vht_mcs.tx_mcs_map = mcs_map;
5509 }
5510
5511 static int brcmf_setup_wiphybands(struct wiphy *wiphy)
5512 {
5513 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
5514 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5515 u32 nmode = 0;
5516 u32 vhtmode = 0;
5517 u32 bw_cap[2] = { WLC_BW_20MHZ_BIT, WLC_BW_20MHZ_BIT };
5518 u32 rxchain;
5519 u32 nchain;
5520 int err;
5521 s32 i;
5522 struct ieee80211_supported_band *band;
5523
5524 (void)brcmf_fil_iovar_int_get(ifp, "vhtmode", &vhtmode);
5525 err = brcmf_fil_iovar_int_get(ifp, "nmode", &nmode);
5526 if (err) {
5527 brcmf_err("nmode error (%d)\n", err);
5528 } else {
5529 brcmf_get_bwcap(ifp, bw_cap);
5530 }
5531 brcmf_dbg(INFO, "nmode=%d, vhtmode=%d, bw_cap=(%d, %d)\n",
5532 nmode, vhtmode, bw_cap[IEEE80211_BAND_2GHZ],
5533 bw_cap[IEEE80211_BAND_5GHZ]);
5534
5535 err = brcmf_fil_iovar_int_get(ifp, "rxchain", &rxchain);
5536 if (err) {
5537 brcmf_err("rxchain error (%d)\n", err);
5538 nchain = 1;
5539 } else {
5540 for (nchain = 0; rxchain; nchain++)
5541 rxchain = rxchain & (rxchain - 1);
5542 }
5543 brcmf_dbg(INFO, "nchain=%d\n", nchain);
5544
5545 err = brcmf_construct_chaninfo(cfg, bw_cap);
5546 if (err) {
5547 brcmf_err("brcmf_construct_chaninfo failed (%d)\n", err);
5548 return err;
5549 }
5550
5551 wiphy = cfg_to_wiphy(cfg);
5552 for (i = 0; i < ARRAY_SIZE(wiphy->bands); i++) {
5553 band = wiphy->bands[i];
5554 if (band == NULL)
5555 continue;
5556
5557 if (nmode)
5558 brcmf_update_ht_cap(band, bw_cap, nchain);
5559 if (vhtmode)
5560 brcmf_update_vht_cap(band, bw_cap, nchain);
5561 }
5562
5563 return 0;
5564 }
5565
5566 static const struct ieee80211_iface_limit brcmf_iface_limits_mbss[] = {
5567 {
5568 .max = 1,
5569 .types = BIT(NL80211_IFTYPE_STATION) |
5570 BIT(NL80211_IFTYPE_ADHOC)
5571 },
5572 {
5573 .max = 4,
5574 .types = BIT(NL80211_IFTYPE_AP)
5575 },
5576 {
5577 .max = 1,
5578 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
5579 BIT(NL80211_IFTYPE_P2P_GO)
5580 },
5581 {
5582 .max = 1,
5583 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
5584 }
5585 };
5586
5587 static const struct ieee80211_iface_limit brcmf_iface_limits_sbss[] = {
5588 {
5589 .max = 2,
5590 .types = BIT(NL80211_IFTYPE_STATION) |
5591 BIT(NL80211_IFTYPE_ADHOC) |
5592 BIT(NL80211_IFTYPE_AP)
5593 },
5594 {
5595 .max = 1,
5596 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
5597 BIT(NL80211_IFTYPE_P2P_GO)
5598 },
5599 {
5600 .max = 1,
5601 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
5602 }
5603 };
5604 static struct ieee80211_iface_combination brcmf_iface_combos[] = {
5605 {
5606 .max_interfaces = BRCMF_IFACE_MAX_CNT,
5607 .num_different_channels = 1,
5608 .n_limits = ARRAY_SIZE(brcmf_iface_limits_sbss),
5609 .limits = brcmf_iface_limits_sbss,
5610 }
5611 };
5612
5613 static const struct ieee80211_txrx_stypes
5614 brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = {
5615 [NL80211_IFTYPE_STATION] = {
5616 .tx = 0xffff,
5617 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5618 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5619 },
5620 [NL80211_IFTYPE_P2P_CLIENT] = {
5621 .tx = 0xffff,
5622 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5623 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5624 },
5625 [NL80211_IFTYPE_P2P_GO] = {
5626 .tx = 0xffff,
5627 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
5628 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
5629 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
5630 BIT(IEEE80211_STYPE_DISASSOC >> 4) |
5631 BIT(IEEE80211_STYPE_AUTH >> 4) |
5632 BIT(IEEE80211_STYPE_DEAUTH >> 4) |
5633 BIT(IEEE80211_STYPE_ACTION >> 4)
5634 },
5635 [NL80211_IFTYPE_P2P_DEVICE] = {
5636 .tx = 0xffff,
5637 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5638 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5639 }
5640 };
5641
5642 static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
5643 {
5644 /* scheduled scan settings */
5645 wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT;
5646 wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
5647 wiphy->max_sched_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5648 wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
5649 }
5650
5651 #ifdef CONFIG_PM
5652 static const struct wiphy_wowlan_support brcmf_wowlan_support = {
5653 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
5654 .n_patterns = BRCMF_WOWL_MAXPATTERNS,
5655 .pattern_max_len = BRCMF_WOWL_MAXPATTERNSIZE,
5656 .pattern_min_len = 1,
5657 .max_pkt_offset = 1500,
5658 };
5659 #endif
5660
5661 static void brcmf_wiphy_wowl_params(struct wiphy *wiphy)
5662 {
5663 #ifdef CONFIG_PM
5664 /* wowl settings */
5665 wiphy->wowlan = &brcmf_wowlan_support;
5666 #endif
5667 }
5668
5669 static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
5670 {
5671 struct ieee80211_iface_combination ifc_combo;
5672 wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
5673 wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5674 wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX;
5675 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
5676 BIT(NL80211_IFTYPE_ADHOC) |
5677 BIT(NL80211_IFTYPE_AP) |
5678 BIT(NL80211_IFTYPE_P2P_CLIENT) |
5679 BIT(NL80211_IFTYPE_P2P_GO) |
5680 BIT(NL80211_IFTYPE_P2P_DEVICE);
5681 /* need VSDB firmware feature for concurrent channels */
5682 ifc_combo = brcmf_iface_combos[0];
5683 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MCHAN))
5684 ifc_combo.num_different_channels = 2;
5685 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) {
5686 ifc_combo.n_limits = ARRAY_SIZE(brcmf_iface_limits_mbss),
5687 ifc_combo.limits = brcmf_iface_limits_mbss;
5688 }
5689 wiphy->iface_combinations = kmemdup(&ifc_combo,
5690 sizeof(ifc_combo),
5691 GFP_KERNEL);
5692 wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos);
5693 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
5694 wiphy->cipher_suites = __wl_cipher_suites;
5695 wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites);
5696 wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT |
5697 WIPHY_FLAG_OFFCHAN_TX |
5698 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
5699 WIPHY_FLAG_SUPPORTS_TDLS;
5700 if (!brcmf_roamoff)
5701 wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM;
5702 wiphy->mgmt_stypes = brcmf_txrx_stypes;
5703 wiphy->max_remain_on_channel_duration = 5000;
5704 brcmf_wiphy_pno_params(wiphy);
5705
5706 /* vendor commands/events support */
5707 wiphy->vendor_commands = brcmf_vendor_cmds;
5708 wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1;
5709
5710 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL))
5711 brcmf_wiphy_wowl_params(wiphy);
5712
5713 return brcmf_setup_wiphybands(wiphy);
5714 }
5715
5716 static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)
5717 {
5718 struct net_device *ndev;
5719 struct wireless_dev *wdev;
5720 struct brcmf_if *ifp;
5721 s32 power_mode;
5722 s32 err = 0;
5723
5724 if (cfg->dongle_up)
5725 return err;
5726
5727 ndev = cfg_to_ndev(cfg);
5728 wdev = ndev->ieee80211_ptr;
5729 ifp = netdev_priv(ndev);
5730
5731 /* make sure RF is ready for work */
5732 brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
5733
5734 brcmf_dongle_scantime(ifp, WL_SCAN_CHANNEL_TIME,
5735 WL_SCAN_UNASSOC_TIME, WL_SCAN_PASSIVE_TIME);
5736
5737 power_mode = cfg->pwr_save ? PM_FAST : PM_OFF;
5738 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode);
5739 if (err)
5740 goto default_conf_out;
5741 brcmf_dbg(INFO, "power save set to %s\n",
5742 (power_mode ? "enabled" : "disabled"));
5743
5744 err = brcmf_dongle_roam(ifp, WL_BEACON_TIMEOUT);
5745 if (err)
5746 goto default_conf_out;
5747 err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype,
5748 NULL, NULL);
5749 if (err)
5750 goto default_conf_out;
5751
5752 brcmf_configure_arp_offload(ifp, true);
5753
5754 cfg->dongle_up = true;
5755 default_conf_out:
5756
5757 return err;
5758
5759 }
5760
5761 static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp)
5762 {
5763 set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5764
5765 return brcmf_config_dongle(ifp->drvr->config);
5766 }
5767
5768 static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp)
5769 {
5770 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5771
5772 /*
5773 * While going down, if associated with AP disassociate
5774 * from AP to save power
5775 */
5776 if (check_vif_up(ifp->vif)) {
5777 brcmf_link_down(ifp->vif);
5778
5779 /* Make sure WPA_Supplicant receives all the event
5780 generated due to DISASSOC call to the fw to keep
5781 the state fw and WPA_Supplicant state consistent
5782 */
5783 brcmf_delay(500);
5784 }
5785
5786 brcmf_abort_scanning(cfg);
5787 clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5788
5789 return 0;
5790 }
5791
5792 s32 brcmf_cfg80211_up(struct net_device *ndev)
5793 {
5794 struct brcmf_if *ifp = netdev_priv(ndev);
5795 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5796 s32 err = 0;
5797
5798 mutex_lock(&cfg->usr_sync);
5799 err = __brcmf_cfg80211_up(ifp);
5800 mutex_unlock(&cfg->usr_sync);
5801
5802 return err;
5803 }
5804
5805 s32 brcmf_cfg80211_down(struct net_device *ndev)
5806 {
5807 struct brcmf_if *ifp = netdev_priv(ndev);
5808 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5809 s32 err = 0;
5810
5811 mutex_lock(&cfg->usr_sync);
5812 err = __brcmf_cfg80211_down(ifp);
5813 mutex_unlock(&cfg->usr_sync);
5814
5815 return err;
5816 }
5817
5818 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp)
5819 {
5820 struct wireless_dev *wdev = &ifp->vif->wdev;
5821
5822 return wdev->iftype;
5823 }
5824
5825 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg,
5826 unsigned long state)
5827 {
5828 struct brcmf_cfg80211_vif *vif;
5829
5830 list_for_each_entry(vif, &cfg->vif_list, list) {
5831 if (test_bit(state, &vif->sme_state))
5832 return true;
5833 }
5834 return false;
5835 }
5836
5837 static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event,
5838 u8 action)
5839 {
5840 u8 evt_action;
5841
5842 mutex_lock(&event->vif_event_lock);
5843 evt_action = event->action;
5844 mutex_unlock(&event->vif_event_lock);
5845 return evt_action == action;
5846 }
5847
5848 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
5849 struct brcmf_cfg80211_vif *vif)
5850 {
5851 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5852
5853 mutex_lock(&event->vif_event_lock);
5854 event->vif = vif;
5855 event->action = 0;
5856 mutex_unlock(&event->vif_event_lock);
5857 }
5858
5859 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg)
5860 {
5861 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5862 bool armed;
5863
5864 mutex_lock(&event->vif_event_lock);
5865 armed = event->vif != NULL;
5866 mutex_unlock(&event->vif_event_lock);
5867
5868 return armed;
5869 }
5870 int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
5871 u8 action, ulong timeout)
5872 {
5873 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5874
5875 return wait_event_timeout(event->vif_wq,
5876 vif_event_equals(event, action), timeout);
5877 }
5878
5879 static void brcmf_free_wiphy(struct wiphy *wiphy)
5880 {
5881 kfree(wiphy->iface_combinations);
5882 if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
5883 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
5884 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
5885 }
5886 if (wiphy->bands[IEEE80211_BAND_5GHZ]) {
5887 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]->channels);
5888 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]);
5889 }
5890 wiphy_free(wiphy);
5891 }
5892
5893 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
5894 struct device *busdev)
5895 {
5896 struct net_device *ndev = drvr->iflist[0]->ndev;
5897 struct brcmf_cfg80211_info *cfg;
5898 struct wiphy *wiphy;
5899 struct brcmf_cfg80211_vif *vif;
5900 struct brcmf_if *ifp;
5901 s32 err = 0;
5902 s32 io_type;
5903 u16 *cap = NULL;
5904
5905 if (!ndev) {
5906 brcmf_err("ndev is invalid\n");
5907 return NULL;
5908 }
5909
5910 ifp = netdev_priv(ndev);
5911 wiphy = wiphy_new(&wl_cfg80211_ops, sizeof(struct brcmf_cfg80211_info));
5912 if (!wiphy) {
5913 brcmf_err("Could not allocate wiphy device\n");
5914 return NULL;
5915 }
5916 set_wiphy_dev(wiphy, busdev);
5917
5918 cfg = wiphy_priv(wiphy);
5919 cfg->wiphy = wiphy;
5920 cfg->pub = drvr;
5921 init_vif_event(&cfg->vif_event);
5922 INIT_LIST_HEAD(&cfg->vif_list);
5923
5924 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION, false);
5925 if (IS_ERR(vif))
5926 goto wiphy_out;
5927
5928 vif->ifp = ifp;
5929 vif->wdev.netdev = ndev;
5930 ndev->ieee80211_ptr = &vif->wdev;
5931 SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy));
5932
5933 err = wl_init_priv(cfg);
5934 if (err) {
5935 brcmf_err("Failed to init iwm_priv (%d)\n", err);
5936 brcmf_free_vif(vif);
5937 goto wiphy_out;
5938 }
5939 ifp->vif = vif;
5940
5941 /* determine d11 io type before wiphy setup */
5942 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_VERSION, &io_type);
5943 if (err) {
5944 brcmf_err("Failed to get D11 version (%d)\n", err);
5945 goto priv_out;
5946 }
5947 cfg->d11inf.io_type = (u8)io_type;
5948 brcmu_d11_attach(&cfg->d11inf);
5949
5950 err = brcmf_setup_wiphy(wiphy, ifp);
5951 if (err < 0)
5952 goto priv_out;
5953
5954 brcmf_dbg(INFO, "Registering custom regulatory\n");
5955 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
5956 wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom);
5957
5958 /* firmware defaults to 40MHz disabled in 2G band. We signal
5959 * cfg80211 here that we do and have it decide we can enable
5960 * it. But first check if device does support 2G operation.
5961 */
5962 if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
5963 cap = &wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap.cap;
5964 *cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5965 }
5966 err = wiphy_register(wiphy);
5967 if (err < 0) {
5968 brcmf_err("Could not register wiphy device (%d)\n", err);
5969 goto priv_out;
5970 }
5971
5972 /* If cfg80211 didn't disable 40MHz HT CAP in wiphy_register(),
5973 * setup 40MHz in 2GHz band and enable OBSS scanning.
5974 */
5975 if (cap && (*cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) {
5976 err = brcmf_enable_bw40_2g(cfg);
5977 if (!err)
5978 err = brcmf_fil_iovar_int_set(ifp, "obss_coex",
5979 BRCMF_OBSS_COEX_AUTO);
5980 else
5981 *cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5982 }
5983
5984 err = brcmf_p2p_attach(cfg);
5985 if (err) {
5986 brcmf_err("P2P initilisation failed (%d)\n", err);
5987 goto wiphy_unreg_out;
5988 }
5989 err = brcmf_btcoex_attach(cfg);
5990 if (err) {
5991 brcmf_err("BT-coex initialisation failed (%d)\n", err);
5992 brcmf_p2p_detach(&cfg->p2p);
5993 goto wiphy_unreg_out;
5994 }
5995
5996 err = brcmf_fil_iovar_int_set(ifp, "tdls_enable", 1);
5997 if (err) {
5998 brcmf_dbg(INFO, "TDLS not enabled (%d)\n", err);
5999 wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_TDLS;
6000 } else {
6001 brcmf_fweh_register(cfg->pub, BRCMF_E_TDLS_PEER_EVENT,
6002 brcmf_notify_tdls_peer_event);
6003 }
6004
6005 return cfg;
6006
6007 wiphy_unreg_out:
6008 wiphy_unregister(cfg->wiphy);
6009 priv_out:
6010 wl_deinit_priv(cfg);
6011 brcmf_free_vif(vif);
6012 wiphy_out:
6013 brcmf_free_wiphy(wiphy);
6014 return NULL;
6015 }
6016
6017 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
6018 {
6019 if (!cfg)
6020 return;
6021
6022 WARN_ON(!list_empty(&cfg->vif_list));
6023 wiphy_unregister(cfg->wiphy);
6024 brcmf_btcoex_detach(cfg);
6025 brcmf_p2p_detach(&cfg->p2p);
6026 wl_deinit_priv(cfg);
6027 brcmf_free_wiphy(cfg->wiphy);
6028 }
Linux kernel - Deliverables
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