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brcmfmac: remove unnecessary EXPORT_SYMBOL() usage
[deliverable/linux.git] / drivers / net / wireless / brcm80211 / brcmfmac / wl_cfg80211.c
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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 <net/cfg80211.h>
22#include <net/netlink.h>
23
24#include <brcmu_utils.h>
25#include <defs.h>
26#include <brcmu_wifi.h>
27#include "dhd.h"
28#include "dhd_dbg.h"
29#include "tracepoint.h"
30#include "fwil_types.h"
31#include "p2p.h"
32#include "btcoex.h"
33#include "wl_cfg80211.h"
34#include "fwil.h"
35
36#define BRCMF_SCAN_IE_LEN_MAX 2048
37#define BRCMF_PNO_VERSION 2
38#define BRCMF_PNO_TIME 30
39#define BRCMF_PNO_REPEAT 4
40#define BRCMF_PNO_FREQ_EXPO_MAX 3
41#define BRCMF_PNO_MAX_PFN_COUNT 16
42#define BRCMF_PNO_ENABLE_ADAPTSCAN_BIT 6
43#define BRCMF_PNO_HIDDEN_BIT 2
44#define BRCMF_PNO_WPA_AUTH_ANY 0xFFFFFFFF
45#define BRCMF_PNO_SCAN_COMPLETE 1
46#define BRCMF_PNO_SCAN_INCOMPLETE 0
47
48#define BRCMF_IFACE_MAX_CNT 3
49
50#define WPA_OUI "\x00\x50\xF2" /* WPA OUI */
51#define WPA_OUI_TYPE 1
52#define RSN_OUI "\x00\x0F\xAC" /* RSN OUI */
53#define WME_OUI_TYPE 2
54#define WPS_OUI_TYPE 4
55
56#define VS_IE_FIXED_HDR_LEN 6
57#define WPA_IE_VERSION_LEN 2
58#define WPA_IE_MIN_OUI_LEN 4
59#define WPA_IE_SUITE_COUNT_LEN 2
60
61#define WPA_CIPHER_NONE 0 /* None */
62#define WPA_CIPHER_WEP_40 1 /* WEP (40-bit) */
63#define WPA_CIPHER_TKIP 2 /* TKIP: default for WPA */
64#define WPA_CIPHER_AES_CCM 4 /* AES (CCM) */
65#define WPA_CIPHER_WEP_104 5 /* WEP (104-bit) */
66
67#define RSN_AKM_NONE 0 /* None (IBSS) */
68#define RSN_AKM_UNSPECIFIED 1 /* Over 802.1x */
69#define RSN_AKM_PSK 2 /* Pre-shared Key */
70#define RSN_CAP_LEN 2 /* Length of RSN capabilities */
71#define RSN_CAP_PTK_REPLAY_CNTR_MASK 0x000C
72
73#define VNDR_IE_CMD_LEN 4 /* length of the set command
74 * string :"add", "del" (+ NUL)
75 */
76#define VNDR_IE_COUNT_OFFSET 4
77#define VNDR_IE_PKTFLAG_OFFSET 8
78#define VNDR_IE_VSIE_OFFSET 12
79#define VNDR_IE_HDR_SIZE 12
80#define VNDR_IE_PARSE_LIMIT 5
81
82#define DOT11_MGMT_HDR_LEN 24 /* d11 management header len */
83#define DOT11_BCN_PRB_FIXED_LEN 12 /* beacon/probe fixed length */
84
85#define BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS 320
86#define BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS 400
87#define BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS 20
88
89#define BRCMF_ASSOC_PARAMS_FIXED_SIZE \
90 (sizeof(struct brcmf_assoc_params_le) - sizeof(u16))
91
92static bool check_vif_up(struct brcmf_cfg80211_vif *vif)
93{
94 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state)) {
95 brcmf_dbg(INFO, "device is not ready : status (%lu)\n",
96 vif->sme_state);
97 return false;
98 }
99 return true;
100}
101
102#define CHAN2G(_channel, _freq, _flags) { \
103 .band = IEEE80211_BAND_2GHZ, \
104 .center_freq = (_freq), \
105 .hw_value = (_channel), \
106 .flags = (_flags), \
107 .max_antenna_gain = 0, \
108 .max_power = 30, \
109}
110
111#define CHAN5G(_channel, _flags) { \
112 .band = IEEE80211_BAND_5GHZ, \
113 .center_freq = 5000 + (5 * (_channel)), \
114 .hw_value = (_channel), \
115 .flags = (_flags), \
116 .max_antenna_gain = 0, \
117 .max_power = 30, \
118}
119
120#define RATE_TO_BASE100KBPS(rate) (((rate) * 10) / 2)
121#define RATETAB_ENT(_rateid, _flags) \
122 { \
123 .bitrate = RATE_TO_BASE100KBPS(_rateid), \
124 .hw_value = (_rateid), \
125 .flags = (_flags), \
126 }
127
128static struct ieee80211_rate __wl_rates[] = {
129 RATETAB_ENT(BRCM_RATE_1M, 0),
130 RATETAB_ENT(BRCM_RATE_2M, IEEE80211_RATE_SHORT_PREAMBLE),
131 RATETAB_ENT(BRCM_RATE_5M5, IEEE80211_RATE_SHORT_PREAMBLE),
132 RATETAB_ENT(BRCM_RATE_11M, IEEE80211_RATE_SHORT_PREAMBLE),
133 RATETAB_ENT(BRCM_RATE_6M, 0),
134 RATETAB_ENT(BRCM_RATE_9M, 0),
135 RATETAB_ENT(BRCM_RATE_12M, 0),
136 RATETAB_ENT(BRCM_RATE_18M, 0),
137 RATETAB_ENT(BRCM_RATE_24M, 0),
138 RATETAB_ENT(BRCM_RATE_36M, 0),
139 RATETAB_ENT(BRCM_RATE_48M, 0),
140 RATETAB_ENT(BRCM_RATE_54M, 0),
141};
142
143#define wl_a_rates (__wl_rates + 4)
144#define wl_a_rates_size 8
145#define wl_g_rates (__wl_rates + 0)
146#define wl_g_rates_size 12
147
148static struct ieee80211_channel __wl_2ghz_channels[] = {
149 CHAN2G(1, 2412, 0),
150 CHAN2G(2, 2417, 0),
151 CHAN2G(3, 2422, 0),
152 CHAN2G(4, 2427, 0),
153 CHAN2G(5, 2432, 0),
154 CHAN2G(6, 2437, 0),
155 CHAN2G(7, 2442, 0),
156 CHAN2G(8, 2447, 0),
157 CHAN2G(9, 2452, 0),
158 CHAN2G(10, 2457, 0),
159 CHAN2G(11, 2462, 0),
160 CHAN2G(12, 2467, 0),
161 CHAN2G(13, 2472, 0),
162 CHAN2G(14, 2484, 0),
163};
164
165static struct ieee80211_channel __wl_5ghz_a_channels[] = {
166 CHAN5G(34, 0), CHAN5G(36, 0),
167 CHAN5G(38, 0), CHAN5G(40, 0),
168 CHAN5G(42, 0), CHAN5G(44, 0),
169 CHAN5G(46, 0), CHAN5G(48, 0),
170 CHAN5G(52, 0), CHAN5G(56, 0),
171 CHAN5G(60, 0), CHAN5G(64, 0),
172 CHAN5G(100, 0), CHAN5G(104, 0),
173 CHAN5G(108, 0), CHAN5G(112, 0),
174 CHAN5G(116, 0), CHAN5G(120, 0),
175 CHAN5G(124, 0), CHAN5G(128, 0),
176 CHAN5G(132, 0), CHAN5G(136, 0),
177 CHAN5G(140, 0), CHAN5G(149, 0),
178 CHAN5G(153, 0), CHAN5G(157, 0),
179 CHAN5G(161, 0), CHAN5G(165, 0),
180 CHAN5G(184, 0), CHAN5G(188, 0),
181 CHAN5G(192, 0), CHAN5G(196, 0),
182 CHAN5G(200, 0), CHAN5G(204, 0),
183 CHAN5G(208, 0), CHAN5G(212, 0),
184 CHAN5G(216, 0),
185};
186
187static struct ieee80211_supported_band __wl_band_2ghz = {
188 .band = IEEE80211_BAND_2GHZ,
189 .channels = __wl_2ghz_channels,
190 .n_channels = ARRAY_SIZE(__wl_2ghz_channels),
191 .bitrates = wl_g_rates,
192 .n_bitrates = wl_g_rates_size,
193};
194
195static struct ieee80211_supported_band __wl_band_5ghz_a = {
196 .band = IEEE80211_BAND_5GHZ,
197 .channels = __wl_5ghz_a_channels,
198 .n_channels = ARRAY_SIZE(__wl_5ghz_a_channels),
199 .bitrates = wl_a_rates,
200 .n_bitrates = wl_a_rates_size,
201};
202
203/* This is to override regulatory domains defined in cfg80211 module (reg.c)
204 * By default world regulatory domain defined in reg.c puts the flags
205 * NL80211_RRF_PASSIVE_SCAN and NL80211_RRF_NO_IBSS for 5GHz channels (for
206 * 36..48 and 149..165). With respect to these flags, wpa_supplicant doesn't
207 * start p2p operations on 5GHz channels. All the changes in world regulatory
208 * domain are to be done here.
209 */
210static const struct ieee80211_regdomain brcmf_regdom = {
211 .n_reg_rules = 4,
212 .alpha2 = "99",
213 .reg_rules = {
214 /* IEEE 802.11b/g, channels 1..11 */
215 REG_RULE(2412-10, 2472+10, 40, 6, 20, 0),
216 /* If any */
217 /* IEEE 802.11 channel 14 - Only JP enables
218 * this and for 802.11b only
219 */
220 REG_RULE(2484-10, 2484+10, 20, 6, 20, 0),
221 /* IEEE 802.11a, channel 36..64 */
222 REG_RULE(5150-10, 5350+10, 40, 6, 20, 0),
223 /* IEEE 802.11a, channel 100..165 */
224 REG_RULE(5470-10, 5850+10, 40, 6, 20, 0), }
225};
226
227static const u32 __wl_cipher_suites[] = {
228 WLAN_CIPHER_SUITE_WEP40,
229 WLAN_CIPHER_SUITE_WEP104,
230 WLAN_CIPHER_SUITE_TKIP,
231 WLAN_CIPHER_SUITE_CCMP,
232 WLAN_CIPHER_SUITE_AES_CMAC,
233};
234
235/* Vendor specific ie. id = 221, oui and type defines exact ie */
236struct brcmf_vs_tlv {
237 u8 id;
238 u8 len;
239 u8 oui[3];
240 u8 oui_type;
241};
242
243struct parsed_vndr_ie_info {
244 u8 *ie_ptr;
245 u32 ie_len; /* total length including id & length field */
246 struct brcmf_vs_tlv vndrie;
247};
248
249struct parsed_vndr_ies {
250 u32 count;
251 struct parsed_vndr_ie_info ie_info[VNDR_IE_PARSE_LIMIT];
252};
253
254/* Quarter dBm units to mW
255 * Table starts at QDBM_OFFSET, so the first entry is mW for qdBm=153
256 * Table is offset so the last entry is largest mW value that fits in
257 * a u16.
258 */
259
260#define QDBM_OFFSET 153 /* Offset for first entry */
261#define QDBM_TABLE_LEN 40 /* Table size */
262
263/* Smallest mW value that will round up to the first table entry, QDBM_OFFSET.
264 * Value is ( mW(QDBM_OFFSET - 1) + mW(QDBM_OFFSET) ) / 2
265 */
266#define QDBM_TABLE_LOW_BOUND 6493 /* Low bound */
267
268/* Largest mW value that will round down to the last table entry,
269 * QDBM_OFFSET + QDBM_TABLE_LEN-1.
270 * Value is ( mW(QDBM_OFFSET + QDBM_TABLE_LEN - 1) +
271 * mW(QDBM_OFFSET + QDBM_TABLE_LEN) ) / 2.
272 */
273#define QDBM_TABLE_HIGH_BOUND 64938 /* High bound */
274
275static const u16 nqdBm_to_mW_map[QDBM_TABLE_LEN] = {
276/* qdBm: +0 +1 +2 +3 +4 +5 +6 +7 */
277/* 153: */ 6683, 7079, 7499, 7943, 8414, 8913, 9441, 10000,
278/* 161: */ 10593, 11220, 11885, 12589, 13335, 14125, 14962, 15849,
279/* 169: */ 16788, 17783, 18836, 19953, 21135, 22387, 23714, 25119,
280/* 177: */ 26607, 28184, 29854, 31623, 33497, 35481, 37584, 39811,
281/* 185: */ 42170, 44668, 47315, 50119, 53088, 56234, 59566, 63096
282};
283
284static u16 brcmf_qdbm_to_mw(u8 qdbm)
285{
286 uint factor = 1;
287 int idx = qdbm - QDBM_OFFSET;
288
289 if (idx >= QDBM_TABLE_LEN)
290 /* clamp to max u16 mW value */
291 return 0xFFFF;
292
293 /* scale the qdBm index up to the range of the table 0-40
294 * where an offset of 40 qdBm equals a factor of 10 mW.
295 */
296 while (idx < 0) {
297 idx += 40;
298 factor *= 10;
299 }
300
301 /* return the mW value scaled down to the correct factor of 10,
302 * adding in factor/2 to get proper rounding.
303 */
304 return (nqdBm_to_mW_map[idx] + factor / 2) / factor;
305}
306
307static u8 brcmf_mw_to_qdbm(u16 mw)
308{
309 u8 qdbm;
310 int offset;
311 uint mw_uint = mw;
312 uint boundary;
313
314 /* handle boundary case */
315 if (mw_uint <= 1)
316 return 0;
317
318 offset = QDBM_OFFSET;
319
320 /* move mw into the range of the table */
321 while (mw_uint < QDBM_TABLE_LOW_BOUND) {
322 mw_uint *= 10;
323 offset -= 40;
324 }
325
326 for (qdbm = 0; qdbm < QDBM_TABLE_LEN - 1; qdbm++) {
327 boundary = nqdBm_to_mW_map[qdbm] + (nqdBm_to_mW_map[qdbm + 1] -
328 nqdBm_to_mW_map[qdbm]) / 2;
329 if (mw_uint < boundary)
330 break;
331 }
332
333 qdbm += (u8) offset;
334
335 return qdbm;
336}
337
338u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
339 struct ieee80211_channel *ch)
340{
341 struct brcmu_chan ch_inf;
342
343 ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq);
344 ch_inf.bw = BRCMU_CHAN_BW_20;
345 d11inf->encchspec(&ch_inf);
346
347 return ch_inf.chspec;
348}
349
350/* Traverse a string of 1-byte tag/1-byte length/variable-length value
351 * triples, returning a pointer to the substring whose first element
352 * matches tag
353 */
354struct brcmf_tlv *brcmf_parse_tlvs(void *buf, int buflen, uint key)
355{
356 struct brcmf_tlv *elt;
357 int totlen;
358
359 elt = (struct brcmf_tlv *)buf;
360 totlen = buflen;
361
362 /* find tagged parameter */
363 while (totlen >= TLV_HDR_LEN) {
364 int len = elt->len;
365
366 /* validate remaining totlen */
367 if ((elt->id == key) && (totlen >= (len + TLV_HDR_LEN)))
368 return elt;
369
370 elt = (struct brcmf_tlv *)((u8 *)elt + (len + TLV_HDR_LEN));
371 totlen -= (len + TLV_HDR_LEN);
372 }
373
374 return NULL;
375}
376
377/* Is any of the tlvs the expected entry? If
378 * not update the tlvs buffer pointer/length.
379 */
380static bool
381brcmf_tlv_has_ie(u8 *ie, u8 **tlvs, u32 *tlvs_len,
382 u8 *oui, u32 oui_len, u8 type)
383{
384 /* If the contents match the OUI and the type */
385 if (ie[TLV_LEN_OFF] >= oui_len + 1 &&
386 !memcmp(&ie[TLV_BODY_OFF], oui, oui_len) &&
387 type == ie[TLV_BODY_OFF + oui_len]) {
388 return true;
389 }
390
391 if (tlvs == NULL)
392 return false;
393 /* point to the next ie */
394 ie += ie[TLV_LEN_OFF] + TLV_HDR_LEN;
395 /* calculate the length of the rest of the buffer */
396 *tlvs_len -= (int)(ie - *tlvs);
397 /* update the pointer to the start of the buffer */
398 *tlvs = ie;
399
400 return false;
401}
402
403static struct brcmf_vs_tlv *
404brcmf_find_wpaie(u8 *parse, u32 len)
405{
406 struct brcmf_tlv *ie;
407
408 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
409 if (brcmf_tlv_has_ie((u8 *)ie, &parse, &len,
410 WPA_OUI, TLV_OUI_LEN, WPA_OUI_TYPE))
411 return (struct brcmf_vs_tlv *)ie;
412 }
413 return NULL;
414}
415
416static struct brcmf_vs_tlv *
417brcmf_find_wpsie(u8 *parse, u32 len)
418{
419 struct brcmf_tlv *ie;
420
421 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
422 if (brcmf_tlv_has_ie((u8 *)ie, &parse, &len,
423 WPA_OUI, TLV_OUI_LEN, WPS_OUI_TYPE))
424 return (struct brcmf_vs_tlv *)ie;
425 }
426 return NULL;
427}
428
429
430static void convert_key_from_CPU(struct brcmf_wsec_key *key,
431 struct brcmf_wsec_key_le *key_le)
432{
433 key_le->index = cpu_to_le32(key->index);
434 key_le->len = cpu_to_le32(key->len);
435 key_le->algo = cpu_to_le32(key->algo);
436 key_le->flags = cpu_to_le32(key->flags);
437 key_le->rxiv.hi = cpu_to_le32(key->rxiv.hi);
438 key_le->rxiv.lo = cpu_to_le16(key->rxiv.lo);
439 key_le->iv_initialized = cpu_to_le32(key->iv_initialized);
440 memcpy(key_le->data, key->data, sizeof(key->data));
441 memcpy(key_le->ea, key->ea, sizeof(key->ea));
442}
443
444static int
445send_key_to_dongle(struct net_device *ndev, struct brcmf_wsec_key *key)
446{
447 int err;
448 struct brcmf_wsec_key_le key_le;
449
450 convert_key_from_CPU(key, &key_le);
451
452 brcmf_netdev_wait_pend8021x(ndev);
453
454 err = brcmf_fil_bsscfg_data_set(netdev_priv(ndev), "wsec_key", &key_le,
455 sizeof(key_le));
456
457 if (err)
458 brcmf_err("wsec_key error (%d)\n", err);
459 return err;
460}
461
462static s32
463brcmf_configure_arp_offload(struct brcmf_if *ifp, bool enable)
464{
465 s32 err;
466 u32 mode;
467
468 if (enable)
469 mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY;
470 else
471 mode = 0;
472
473 /* Try to set and enable ARP offload feature, this may fail, then it */
474 /* is simply not supported and err 0 will be returned */
475 err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode);
476 if (err) {
477 brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n",
478 mode, err);
479 err = 0;
480 } else {
481 err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable);
482 if (err) {
483 brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n",
484 enable, err);
485 err = 0;
486 } else
487 brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n",
488 enable, mode);
489 }
490
491 return err;
492}
493
494static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
495 const char *name,
496 enum nl80211_iftype type,
497 u32 *flags,
498 struct vif_params *params)
499{
500 brcmf_dbg(TRACE, "enter: %s type %d\n", name, type);
501 switch (type) {
502 case NL80211_IFTYPE_ADHOC:
503 case NL80211_IFTYPE_STATION:
504 case NL80211_IFTYPE_AP:
505 case NL80211_IFTYPE_AP_VLAN:
506 case NL80211_IFTYPE_WDS:
507 case NL80211_IFTYPE_MONITOR:
508 case NL80211_IFTYPE_MESH_POINT:
509 return ERR_PTR(-EOPNOTSUPP);
510 case NL80211_IFTYPE_P2P_CLIENT:
511 case NL80211_IFTYPE_P2P_GO:
512 case NL80211_IFTYPE_P2P_DEVICE:
513 return brcmf_p2p_add_vif(wiphy, name, type, flags, params);
514 case NL80211_IFTYPE_UNSPECIFIED:
515 default:
516 return ERR_PTR(-EINVAL);
517 }
518}
519
520void brcmf_set_mpc(struct brcmf_if *ifp, int mpc)
521{
522 s32 err = 0;
523
524 if (check_vif_up(ifp->vif)) {
525 err = brcmf_fil_iovar_int_set(ifp, "mpc", mpc);
526 if (err) {
527 brcmf_err("fail to set mpc\n");
528 return;
529 }
530 brcmf_dbg(INFO, "MPC : %d\n", mpc);
531 }
532}
533
534s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
535 struct brcmf_if *ifp, bool aborted,
536 bool fw_abort)
537{
538 struct brcmf_scan_params_le params_le;
539 struct cfg80211_scan_request *scan_request;
540 s32 err = 0;
541
542 brcmf_dbg(SCAN, "Enter\n");
543
544 /* clear scan request, because the FW abort can cause a second call */
545 /* to this functon and might cause a double cfg80211_scan_done */
546 scan_request = cfg->scan_request;
547 cfg->scan_request = NULL;
548
549 if (timer_pending(&cfg->escan_timeout))
550 del_timer_sync(&cfg->escan_timeout);
551
552 if (fw_abort) {
553 /* Do a scan abort to stop the driver's scan engine */
554 brcmf_dbg(SCAN, "ABORT scan in firmware\n");
555 memset(&params_le, 0, sizeof(params_le));
556 memset(params_le.bssid, 0xFF, ETH_ALEN);
557 params_le.bss_type = DOT11_BSSTYPE_ANY;
558 params_le.scan_type = 0;
559 params_le.channel_num = cpu_to_le32(1);
560 params_le.nprobes = cpu_to_le32(1);
561 params_le.active_time = cpu_to_le32(-1);
562 params_le.passive_time = cpu_to_le32(-1);
563 params_le.home_time = cpu_to_le32(-1);
564 /* Scan is aborted by setting channel_list[0] to -1 */
565 params_le.channel_list[0] = cpu_to_le16(-1);
566 /* E-Scan (or anyother type) can be aborted by SCAN */
567 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
568 &params_le, sizeof(params_le));
569 if (err)
570 brcmf_err("Scan abort failed\n");
571 }
572 /*
573 * e-scan can be initiated by scheduled scan
574 * which takes precedence.
575 */
576 if (cfg->sched_escan) {
577 brcmf_dbg(SCAN, "scheduled scan completed\n");
578 cfg->sched_escan = false;
579 if (!aborted)
580 cfg80211_sched_scan_results(cfg_to_wiphy(cfg));
581 brcmf_set_mpc(ifp, 1);
582 } else if (scan_request) {
583 brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n",
584 aborted ? "Aborted" : "Done");
585 cfg80211_scan_done(scan_request, aborted);
586 brcmf_set_mpc(ifp, 1);
587 }
588 if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
589 brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n");
590
591 return err;
592}
593
594static
595int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
596{
597 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
598 struct net_device *ndev = wdev->netdev;
599
600 /* vif event pending in firmware */
601 if (brcmf_cfg80211_vif_event_armed(cfg))
602 return -EBUSY;
603
604 if (ndev) {
605 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status) &&
606 cfg->escan_info.ifp == netdev_priv(ndev))
607 brcmf_notify_escan_complete(cfg, netdev_priv(ndev),
608 true, true);
609
610 brcmf_fil_iovar_int_set(netdev_priv(ndev), "mpc", 1);
611 }
612
613 switch (wdev->iftype) {
614 case NL80211_IFTYPE_ADHOC:
615 case NL80211_IFTYPE_STATION:
616 case NL80211_IFTYPE_AP:
617 case NL80211_IFTYPE_AP_VLAN:
618 case NL80211_IFTYPE_WDS:
619 case NL80211_IFTYPE_MONITOR:
620 case NL80211_IFTYPE_MESH_POINT:
621 return -EOPNOTSUPP;
622 case NL80211_IFTYPE_P2P_CLIENT:
623 case NL80211_IFTYPE_P2P_GO:
624 case NL80211_IFTYPE_P2P_DEVICE:
625 return brcmf_p2p_del_vif(wiphy, wdev);
626 case NL80211_IFTYPE_UNSPECIFIED:
627 default:
628 return -EINVAL;
629 }
630 return -EOPNOTSUPP;
631}
632
633static s32
634brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
635 enum nl80211_iftype type, u32 *flags,
636 struct vif_params *params)
637{
638 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
639 struct brcmf_if *ifp = netdev_priv(ndev);
640 struct brcmf_cfg80211_vif *vif = ifp->vif;
641 s32 infra = 0;
642 s32 ap = 0;
643 s32 err = 0;
644
645 brcmf_dbg(TRACE, "Enter, ndev=%p, type=%d\n", ndev, type);
646
647 switch (type) {
648 case NL80211_IFTYPE_MONITOR:
649 case NL80211_IFTYPE_WDS:
650 brcmf_err("type (%d) : currently we do not support this type\n",
651 type);
652 return -EOPNOTSUPP;
653 case NL80211_IFTYPE_ADHOC:
654 vif->mode = WL_MODE_IBSS;
655 infra = 0;
656 break;
657 case NL80211_IFTYPE_STATION:
658 /* Ignore change for p2p IF. Unclear why supplicant does this */
659 if ((vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) ||
660 (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO)) {
661 brcmf_dbg(TRACE, "Ignoring cmd for p2p if\n");
662 /* WAR: It is unexpected to get a change of VIF for P2P
663 * IF, but it happens. The request can not be handled
664 * but returning EPERM causes a crash. Returning 0
665 * without setting ieee80211_ptr->iftype causes trace
666 * (WARN_ON) but it works with wpa_supplicant
667 */
668 return 0;
669 }
670 vif->mode = WL_MODE_BSS;
671 infra = 1;
672 break;
673 case NL80211_IFTYPE_AP:
674 case NL80211_IFTYPE_P2P_GO:
675 vif->mode = WL_MODE_AP;
676 ap = 1;
677 break;
678 default:
679 err = -EINVAL;
680 goto done;
681 }
682
683 if (ap) {
684 if (type == NL80211_IFTYPE_P2P_GO) {
685 brcmf_dbg(INFO, "IF Type = P2P GO\n");
686 err = brcmf_p2p_ifchange(cfg, BRCMF_FIL_P2P_IF_GO);
687 }
688 if (!err) {
689 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &vif->sme_state);
690 brcmf_dbg(INFO, "IF Type = AP\n");
691 }
692 } else {
693 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, infra);
694 if (err) {
695 brcmf_err("WLC_SET_INFRA error (%d)\n", err);
696 err = -EAGAIN;
697 goto done;
698 }
699 brcmf_dbg(INFO, "IF Type = %s\n", (vif->mode == WL_MODE_IBSS) ?
700 "Adhoc" : "Infra");
701 }
702 ndev->ieee80211_ptr->iftype = type;
703
704done:
705 brcmf_dbg(TRACE, "Exit\n");
706
707 return err;
708}
709
710static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
711 struct brcmf_scan_params_le *params_le,
712 struct cfg80211_scan_request *request)
713{
714 u32 n_ssids;
715 u32 n_channels;
716 s32 i;
717 s32 offset;
718 u16 chanspec;
719 char *ptr;
720 struct brcmf_ssid_le ssid_le;
721
722 memset(params_le->bssid, 0xFF, ETH_ALEN);
723 params_le->bss_type = DOT11_BSSTYPE_ANY;
724 params_le->scan_type = 0;
725 params_le->channel_num = 0;
726 params_le->nprobes = cpu_to_le32(-1);
727 params_le->active_time = cpu_to_le32(-1);
728 params_le->passive_time = cpu_to_le32(-1);
729 params_le->home_time = cpu_to_le32(-1);
730 memset(&params_le->ssid_le, 0, sizeof(params_le->ssid_le));
731
732 /* if request is null exit so it will be all channel broadcast scan */
733 if (!request)
734 return;
735
736 n_ssids = request->n_ssids;
737 n_channels = request->n_channels;
738 /* Copy channel array if applicable */
739 brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n",
740 n_channels);
741 if (n_channels > 0) {
742 for (i = 0; i < n_channels; i++) {
743 chanspec = channel_to_chanspec(&cfg->d11inf,
744 request->channels[i]);
745 brcmf_dbg(SCAN, "Chan : %d, Channel spec: %x\n",
746 request->channels[i]->hw_value, chanspec);
747 params_le->channel_list[i] = cpu_to_le16(chanspec);
748 }
749 } else {
750 brcmf_dbg(SCAN, "Scanning all channels\n");
751 }
752 /* Copy ssid array if applicable */
753 brcmf_dbg(SCAN, "### List of SSIDs to scan ### %d\n", n_ssids);
754 if (n_ssids > 0) {
755 offset = offsetof(struct brcmf_scan_params_le, channel_list) +
756 n_channels * sizeof(u16);
757 offset = roundup(offset, sizeof(u32));
758 ptr = (char *)params_le + offset;
759 for (i = 0; i < n_ssids; i++) {
760 memset(&ssid_le, 0, sizeof(ssid_le));
761 ssid_le.SSID_len =
762 cpu_to_le32(request->ssids[i].ssid_len);
763 memcpy(ssid_le.SSID, request->ssids[i].ssid,
764 request->ssids[i].ssid_len);
765 if (!ssid_le.SSID_len)
766 brcmf_dbg(SCAN, "%d: Broadcast scan\n", i);
767 else
768 brcmf_dbg(SCAN, "%d: scan for %s size =%d\n",
769 i, ssid_le.SSID, ssid_le.SSID_len);
770 memcpy(ptr, &ssid_le, sizeof(ssid_le));
771 ptr += sizeof(ssid_le);
772 }
773 } else {
774 brcmf_dbg(SCAN, "Broadcast scan %p\n", request->ssids);
775 if ((request->ssids) && request->ssids->ssid_len) {
776 brcmf_dbg(SCAN, "SSID %s len=%d\n",
777 params_le->ssid_le.SSID,
778 request->ssids->ssid_len);
779 params_le->ssid_le.SSID_len =
780 cpu_to_le32(request->ssids->ssid_len);
781 memcpy(&params_le->ssid_le.SSID, request->ssids->ssid,
782 request->ssids->ssid_len);
783 }
784 }
785 /* Adding mask to channel numbers */
786 params_le->channel_num =
787 cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) |
788 (n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK));
789}
790
791static s32
792brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
793 struct cfg80211_scan_request *request, u16 action)
794{
795 s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
796 offsetof(struct brcmf_escan_params_le, params_le);
797 struct brcmf_escan_params_le *params;
798 s32 err = 0;
799
800 brcmf_dbg(SCAN, "E-SCAN START\n");
801
802 if (request != NULL) {
803 /* Allocate space for populating ssids in struct */
804 params_size += sizeof(u32) * ((request->n_channels + 1) / 2);
805
806 /* Allocate space for populating ssids in struct */
807 params_size += sizeof(struct brcmf_ssid) * request->n_ssids;
808 }
809
810 params = kzalloc(params_size, GFP_KERNEL);
811 if (!params) {
812 err = -ENOMEM;
813 goto exit;
814 }
815 BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN);
816 brcmf_escan_prep(cfg, &params->params_le, request);
817 params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
818 params->action = cpu_to_le16(action);
819 params->sync_id = cpu_to_le16(0x1234);
820
821 err = brcmf_fil_iovar_data_set(ifp, "escan", params, params_size);
822 if (err) {
823 if (err == -EBUSY)
824 brcmf_dbg(INFO, "system busy : escan canceled\n");
825 else
826 brcmf_err("error (%d)\n", err);
827 }
828
829 kfree(params);
830exit:
831 return err;
832}
833
834static s32
835brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
836 struct brcmf_if *ifp, struct cfg80211_scan_request *request)
837{
838 s32 err;
839 u32 passive_scan;
840 struct brcmf_scan_results *results;
841 struct escan_info *escan = &cfg->escan_info;
842
843 brcmf_dbg(SCAN, "Enter\n");
844 escan->ifp = ifp;
845 escan->wiphy = wiphy;
846 escan->escan_state = WL_ESCAN_STATE_SCANNING;
847 passive_scan = cfg->active_scan ? 0 : 1;
848 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
849 passive_scan);
850 if (err) {
851 brcmf_err("error (%d)\n", err);
852 return err;
853 }
854 brcmf_set_mpc(ifp, 0);
855 results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
856 results->version = 0;
857 results->count = 0;
858 results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE;
859
860 err = escan->run(cfg, ifp, request, WL_ESCAN_ACTION_START);
861 if (err)
862 brcmf_set_mpc(ifp, 1);
863 return err;
864}
865
866static s32
867brcmf_cfg80211_escan(struct wiphy *wiphy, struct brcmf_cfg80211_vif *vif,
868 struct cfg80211_scan_request *request,
869 struct cfg80211_ssid *this_ssid)
870{
871 struct brcmf_if *ifp = vif->ifp;
872 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
873 struct cfg80211_ssid *ssids;
874 struct brcmf_cfg80211_scan_req *sr = &cfg->scan_req_int;
875 u32 passive_scan;
876 bool escan_req;
877 bool spec_scan;
878 s32 err;
879 u32 SSID_len;
880
881 brcmf_dbg(SCAN, "START ESCAN\n");
882
883 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
884 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
885 return -EAGAIN;
886 }
887 if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) {
888 brcmf_err("Scanning being aborted: status (%lu)\n",
889 cfg->scan_status);
890 return -EAGAIN;
891 }
892 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
893 brcmf_err("Scanning suppressed: status (%lu)\n",
894 cfg->scan_status);
895 return -EAGAIN;
896 }
897 if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) {
898 brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state);
899 return -EAGAIN;
900 }
901
902 /* If scan req comes for p2p0, send it over primary I/F */
903 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
904 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
905
906 /* Arm scan timeout timer */
907 mod_timer(&cfg->escan_timeout, jiffies +
908 WL_ESCAN_TIMER_INTERVAL_MS * HZ / 1000);
909
910 escan_req = false;
911 if (request) {
912 /* scan bss */
913 ssids = request->ssids;
914 escan_req = true;
915 } else {
916 /* scan in ibss */
917 /* we don't do escan in ibss */
918 ssids = this_ssid;
919 }
920
921 cfg->scan_request = request;
922 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
923 if (escan_req) {
924 cfg->escan_info.run = brcmf_run_escan;
925 err = brcmf_p2p_scan_prep(wiphy, request, vif);
926 if (err)
927 goto scan_out;
928
929 err = brcmf_do_escan(cfg, wiphy, vif->ifp, request);
930 if (err)
931 goto scan_out;
932 } else {
933 brcmf_dbg(SCAN, "ssid \"%s\", ssid_len (%d)\n",
934 ssids->ssid, ssids->ssid_len);
935 memset(&sr->ssid_le, 0, sizeof(sr->ssid_le));
936 SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len);
937 sr->ssid_le.SSID_len = cpu_to_le32(0);
938 spec_scan = false;
939 if (SSID_len) {
940 memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len);
941 sr->ssid_le.SSID_len = cpu_to_le32(SSID_len);
942 spec_scan = true;
943 } else
944 brcmf_dbg(SCAN, "Broadcast scan\n");
945
946 passive_scan = cfg->active_scan ? 0 : 1;
947 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
948 passive_scan);
949 if (err) {
950 brcmf_err("WLC_SET_PASSIVE_SCAN error (%d)\n", err);
951 goto scan_out;
952 }
953 brcmf_set_mpc(ifp, 0);
954 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
955 &sr->ssid_le, sizeof(sr->ssid_le));
956 if (err) {
957 if (err == -EBUSY)
958 brcmf_dbg(INFO, "BUSY: scan for \"%s\" canceled\n",
959 sr->ssid_le.SSID);
960 else
961 brcmf_err("WLC_SCAN error (%d)\n", err);
962
963 brcmf_set_mpc(ifp, 1);
964 goto scan_out;
965 }
966 }
967
968 return 0;
969
970scan_out:
971 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
972 if (timer_pending(&cfg->escan_timeout))
973 del_timer_sync(&cfg->escan_timeout);
974 cfg->scan_request = NULL;
975 return err;
976}
977
978static s32
979brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
980{
981 struct brcmf_cfg80211_vif *vif;
982 s32 err = 0;
983
984 brcmf_dbg(TRACE, "Enter\n");
985 vif = container_of(request->wdev, struct brcmf_cfg80211_vif, wdev);
986 if (!check_vif_up(vif))
987 return -EIO;
988
989 err = brcmf_cfg80211_escan(wiphy, vif, request, NULL);
990
991 if (err)
992 brcmf_err("scan error (%d)\n", err);
993
994 brcmf_dbg(TRACE, "Exit\n");
995 return err;
996}
997
998static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold)
999{
1000 s32 err = 0;
1001
1002 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "rtsthresh",
1003 rts_threshold);
1004 if (err)
1005 brcmf_err("Error (%d)\n", err);
1006
1007 return err;
1008}
1009
1010static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold)
1011{
1012 s32 err = 0;
1013
1014 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "fragthresh",
1015 frag_threshold);
1016 if (err)
1017 brcmf_err("Error (%d)\n", err);
1018
1019 return err;
1020}
1021
1022static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
1023{
1024 s32 err = 0;
1025 u32 cmd = (l ? BRCMF_C_SET_LRL : BRCMF_C_SET_SRL);
1026
1027 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), cmd, retry);
1028 if (err) {
1029 brcmf_err("cmd (%d) , error (%d)\n", cmd, err);
1030 return err;
1031 }
1032 return err;
1033}
1034
1035static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1036{
1037 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1038 struct net_device *ndev = cfg_to_ndev(cfg);
1039 struct brcmf_if *ifp = netdev_priv(ndev);
1040 s32 err = 0;
1041
1042 brcmf_dbg(TRACE, "Enter\n");
1043 if (!check_vif_up(ifp->vif))
1044 return -EIO;
1045
1046 if (changed & WIPHY_PARAM_RTS_THRESHOLD &&
1047 (cfg->conf->rts_threshold != wiphy->rts_threshold)) {
1048 cfg->conf->rts_threshold = wiphy->rts_threshold;
1049 err = brcmf_set_rts(ndev, cfg->conf->rts_threshold);
1050 if (!err)
1051 goto done;
1052 }
1053 if (changed & WIPHY_PARAM_FRAG_THRESHOLD &&
1054 (cfg->conf->frag_threshold != wiphy->frag_threshold)) {
1055 cfg->conf->frag_threshold = wiphy->frag_threshold;
1056 err = brcmf_set_frag(ndev, cfg->conf->frag_threshold);
1057 if (!err)
1058 goto done;
1059 }
1060 if (changed & WIPHY_PARAM_RETRY_LONG
1061 && (cfg->conf->retry_long != wiphy->retry_long)) {
1062 cfg->conf->retry_long = wiphy->retry_long;
1063 err = brcmf_set_retry(ndev, cfg->conf->retry_long, true);
1064 if (!err)
1065 goto done;
1066 }
1067 if (changed & WIPHY_PARAM_RETRY_SHORT
1068 && (cfg->conf->retry_short != wiphy->retry_short)) {
1069 cfg->conf->retry_short = wiphy->retry_short;
1070 err = brcmf_set_retry(ndev, cfg->conf->retry_short, false);
1071 if (!err)
1072 goto done;
1073 }
1074
1075done:
1076 brcmf_dbg(TRACE, "Exit\n");
1077 return err;
1078}
1079
1080static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof)
1081{
1082 memset(prof, 0, sizeof(*prof));
1083}
1084
1085static void brcmf_link_down(struct brcmf_cfg80211_vif *vif)
1086{
1087 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy);
1088 s32 err = 0;
1089
1090 brcmf_dbg(TRACE, "Enter\n");
1091
1092 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state)) {
1093 brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n ");
1094 err = brcmf_fil_cmd_data_set(vif->ifp,
1095 BRCMF_C_DISASSOC, NULL, 0);
1096 if (err) {
1097 brcmf_err("WLC_DISASSOC failed (%d)\n", err);
1098 cfg80211_disconnected(vif->wdev.netdev, 0,
1099 NULL, 0, GFP_KERNEL);
1100 }
1101 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state);
1102 }
1103 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state);
1104 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
1105 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
1106 brcmf_dbg(TRACE, "Exit\n");
1107}
1108
1109static s32
1110brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
1111 struct cfg80211_ibss_params *params)
1112{
1113 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1114 struct brcmf_if *ifp = netdev_priv(ndev);
1115 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1116 struct brcmf_join_params join_params;
1117 size_t join_params_size = 0;
1118 s32 err = 0;
1119 s32 wsec = 0;
1120 s32 bcnprd;
1121 u16 chanspec;
1122
1123 brcmf_dbg(TRACE, "Enter\n");
1124 if (!check_vif_up(ifp->vif))
1125 return -EIO;
1126
1127 if (params->ssid)
1128 brcmf_dbg(CONN, "SSID: %s\n", params->ssid);
1129 else {
1130 brcmf_dbg(CONN, "SSID: NULL, Not supported\n");
1131 return -EOPNOTSUPP;
1132 }
1133
1134 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1135
1136 if (params->bssid)
1137 brcmf_dbg(CONN, "BSSID: %pM\n", params->bssid);
1138 else
1139 brcmf_dbg(CONN, "No BSSID specified\n");
1140
1141 if (params->chandef.chan)
1142 brcmf_dbg(CONN, "channel: %d\n",
1143 params->chandef.chan->center_freq);
1144 else
1145 brcmf_dbg(CONN, "no channel specified\n");
1146
1147 if (params->channel_fixed)
1148 brcmf_dbg(CONN, "fixed channel required\n");
1149 else
1150 brcmf_dbg(CONN, "no fixed channel required\n");
1151
1152 if (params->ie && params->ie_len)
1153 brcmf_dbg(CONN, "ie len: %d\n", params->ie_len);
1154 else
1155 brcmf_dbg(CONN, "no ie specified\n");
1156
1157 if (params->beacon_interval)
1158 brcmf_dbg(CONN, "beacon interval: %d\n",
1159 params->beacon_interval);
1160 else
1161 brcmf_dbg(CONN, "no beacon interval specified\n");
1162
1163 if (params->basic_rates)
1164 brcmf_dbg(CONN, "basic rates: %08X\n", params->basic_rates);
1165 else
1166 brcmf_dbg(CONN, "no basic rates specified\n");
1167
1168 if (params->privacy)
1169 brcmf_dbg(CONN, "privacy required\n");
1170 else
1171 brcmf_dbg(CONN, "no privacy required\n");
1172
1173 /* Configure Privacy for starter */
1174 if (params->privacy)
1175 wsec |= WEP_ENABLED;
1176
1177 err = brcmf_fil_iovar_int_set(ifp, "wsec", wsec);
1178 if (err) {
1179 brcmf_err("wsec failed (%d)\n", err);
1180 goto done;
1181 }
1182
1183 /* Configure Beacon Interval for starter */
1184 if (params->beacon_interval)
1185 bcnprd = params->beacon_interval;
1186 else
1187 bcnprd = 100;
1188
1189 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, bcnprd);
1190 if (err) {
1191 brcmf_err("WLC_SET_BCNPRD failed (%d)\n", err);
1192 goto done;
1193 }
1194
1195 /* Configure required join parameter */
1196 memset(&join_params, 0, sizeof(struct brcmf_join_params));
1197
1198 /* SSID */
1199 profile->ssid.SSID_len = min_t(u32, params->ssid_len, 32);
1200 memcpy(profile->ssid.SSID, params->ssid, profile->ssid.SSID_len);
1201 memcpy(join_params.ssid_le.SSID, params->ssid, profile->ssid.SSID_len);
1202 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1203 join_params_size = sizeof(join_params.ssid_le);
1204
1205 /* BSSID */
1206 if (params->bssid) {
1207 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN);
1208 join_params_size = sizeof(join_params.ssid_le) +
1209 BRCMF_ASSOC_PARAMS_FIXED_SIZE;
1210 memcpy(profile->bssid, params->bssid, ETH_ALEN);
1211 } else {
1212 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1213 memset(profile->bssid, 0, ETH_ALEN);
1214 }
1215
1216 /* Channel */
1217 if (params->chandef.chan) {
1218 u32 target_channel;
1219
1220 cfg->channel =
1221 ieee80211_frequency_to_channel(
1222 params->chandef.chan->center_freq);
1223 if (params->channel_fixed) {
1224 /* adding chanspec */
1225 chanspec = channel_to_chanspec(&cfg->d11inf,
1226 params->chandef.chan);
1227 join_params.params_le.chanspec_list[0] =
1228 cpu_to_le16(chanspec);
1229 join_params.params_le.chanspec_num = cpu_to_le32(1);
1230 join_params_size += sizeof(join_params.params_le);
1231 }
1232
1233 /* set channel for starter */
1234 target_channel = cfg->channel;
1235 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_CHANNEL,
1236 target_channel);
1237 if (err) {
1238 brcmf_err("WLC_SET_CHANNEL failed (%d)\n", err);
1239 goto done;
1240 }
1241 } else
1242 cfg->channel = 0;
1243
1244 cfg->ibss_starter = false;
1245
1246
1247 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1248 &join_params, join_params_size);
1249 if (err) {
1250 brcmf_err("WLC_SET_SSID failed (%d)\n", err);
1251 goto done;
1252 }
1253
1254done:
1255 if (err)
1256 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1257 brcmf_dbg(TRACE, "Exit\n");
1258 return err;
1259}
1260
1261static s32
1262brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
1263{
1264 struct brcmf_if *ifp = netdev_priv(ndev);
1265 s32 err = 0;
1266
1267 brcmf_dbg(TRACE, "Enter\n");
1268 if (!check_vif_up(ifp->vif))
1269 return -EIO;
1270
1271 brcmf_link_down(ifp->vif);
1272
1273 brcmf_dbg(TRACE, "Exit\n");
1274
1275 return err;
1276}
1277
1278static s32 brcmf_set_wpa_version(struct net_device *ndev,
1279 struct cfg80211_connect_params *sme)
1280{
1281 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1282 struct brcmf_cfg80211_security *sec;
1283 s32 val = 0;
1284 s32 err = 0;
1285
1286 if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1)
1287 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED;
1288 else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)
1289 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED;
1290 else
1291 val = WPA_AUTH_DISABLED;
1292 brcmf_dbg(CONN, "setting wpa_auth to 0x%0x\n", val);
1293 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val);
1294 if (err) {
1295 brcmf_err("set wpa_auth failed (%d)\n", err);
1296 return err;
1297 }
1298 sec = &profile->sec;
1299 sec->wpa_versions = sme->crypto.wpa_versions;
1300 return err;
1301}
1302
1303static s32 brcmf_set_auth_type(struct net_device *ndev,
1304 struct cfg80211_connect_params *sme)
1305{
1306 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1307 struct brcmf_cfg80211_security *sec;
1308 s32 val = 0;
1309 s32 err = 0;
1310
1311 switch (sme->auth_type) {
1312 case NL80211_AUTHTYPE_OPEN_SYSTEM:
1313 val = 0;
1314 brcmf_dbg(CONN, "open system\n");
1315 break;
1316 case NL80211_AUTHTYPE_SHARED_KEY:
1317 val = 1;
1318 brcmf_dbg(CONN, "shared key\n");
1319 break;
1320 case NL80211_AUTHTYPE_AUTOMATIC:
1321 val = 2;
1322 brcmf_dbg(CONN, "automatic\n");
1323 break;
1324 case NL80211_AUTHTYPE_NETWORK_EAP:
1325 brcmf_dbg(CONN, "network eap\n");
1326 default:
1327 val = 2;
1328 brcmf_err("invalid auth type (%d)\n", sme->auth_type);
1329 break;
1330 }
1331
1332 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1333 if (err) {
1334 brcmf_err("set auth failed (%d)\n", err);
1335 return err;
1336 }
1337 sec = &profile->sec;
1338 sec->auth_type = sme->auth_type;
1339 return err;
1340}
1341
1342static s32
1343brcmf_set_set_cipher(struct net_device *ndev,
1344 struct cfg80211_connect_params *sme)
1345{
1346 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1347 struct brcmf_cfg80211_security *sec;
1348 s32 pval = 0;
1349 s32 gval = 0;
1350 s32 err = 0;
1351
1352 if (sme->crypto.n_ciphers_pairwise) {
1353 switch (sme->crypto.ciphers_pairwise[0]) {
1354 case WLAN_CIPHER_SUITE_WEP40:
1355 case WLAN_CIPHER_SUITE_WEP104:
1356 pval = WEP_ENABLED;
1357 break;
1358 case WLAN_CIPHER_SUITE_TKIP:
1359 pval = TKIP_ENABLED;
1360 break;
1361 case WLAN_CIPHER_SUITE_CCMP:
1362 pval = AES_ENABLED;
1363 break;
1364 case WLAN_CIPHER_SUITE_AES_CMAC:
1365 pval = AES_ENABLED;
1366 break;
1367 default:
1368 brcmf_err("invalid cipher pairwise (%d)\n",
1369 sme->crypto.ciphers_pairwise[0]);
1370 return -EINVAL;
1371 }
1372 }
1373 if (sme->crypto.cipher_group) {
1374 switch (sme->crypto.cipher_group) {
1375 case WLAN_CIPHER_SUITE_WEP40:
1376 case WLAN_CIPHER_SUITE_WEP104:
1377 gval = WEP_ENABLED;
1378 break;
1379 case WLAN_CIPHER_SUITE_TKIP:
1380 gval = TKIP_ENABLED;
1381 break;
1382 case WLAN_CIPHER_SUITE_CCMP:
1383 gval = AES_ENABLED;
1384 break;
1385 case WLAN_CIPHER_SUITE_AES_CMAC:
1386 gval = AES_ENABLED;
1387 break;
1388 default:
1389 brcmf_err("invalid cipher group (%d)\n",
1390 sme->crypto.cipher_group);
1391 return -EINVAL;
1392 }
1393 }
1394
1395 brcmf_dbg(CONN, "pval (%d) gval (%d)\n", pval, gval);
1396 /* In case of privacy, but no security and WPS then simulate */
1397 /* setting AES. WPS-2.0 allows no security */
1398 if (brcmf_find_wpsie(sme->ie, sme->ie_len) && !pval && !gval &&
1399 sme->privacy)
1400 pval = AES_ENABLED;
1401 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wsec", pval | gval);
1402 if (err) {
1403 brcmf_err("error (%d)\n", err);
1404 return err;
1405 }
1406
1407 sec = &profile->sec;
1408 sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0];
1409 sec->cipher_group = sme->crypto.cipher_group;
1410
1411 return err;
1412}
1413
1414static s32
1415brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
1416{
1417 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1418 struct brcmf_cfg80211_security *sec;
1419 s32 val = 0;
1420 s32 err = 0;
1421
1422 if (sme->crypto.n_akm_suites) {
1423 err = brcmf_fil_bsscfg_int_get(netdev_priv(ndev),
1424 "wpa_auth", &val);
1425 if (err) {
1426 brcmf_err("could not get wpa_auth (%d)\n", err);
1427 return err;
1428 }
1429 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) {
1430 switch (sme->crypto.akm_suites[0]) {
1431 case WLAN_AKM_SUITE_8021X:
1432 val = WPA_AUTH_UNSPECIFIED;
1433 break;
1434 case WLAN_AKM_SUITE_PSK:
1435 val = WPA_AUTH_PSK;
1436 break;
1437 default:
1438 brcmf_err("invalid cipher group (%d)\n",
1439 sme->crypto.cipher_group);
1440 return -EINVAL;
1441 }
1442 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) {
1443 switch (sme->crypto.akm_suites[0]) {
1444 case WLAN_AKM_SUITE_8021X:
1445 val = WPA2_AUTH_UNSPECIFIED;
1446 break;
1447 case WLAN_AKM_SUITE_PSK:
1448 val = WPA2_AUTH_PSK;
1449 break;
1450 default:
1451 brcmf_err("invalid cipher group (%d)\n",
1452 sme->crypto.cipher_group);
1453 return -EINVAL;
1454 }
1455 }
1456
1457 brcmf_dbg(CONN, "setting wpa_auth to %d\n", val);
1458 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev),
1459 "wpa_auth", val);
1460 if (err) {
1461 brcmf_err("could not set wpa_auth (%d)\n", err);
1462 return err;
1463 }
1464 }
1465 sec = &profile->sec;
1466 sec->wpa_auth = sme->crypto.akm_suites[0];
1467
1468 return err;
1469}
1470
1471static s32
1472brcmf_set_sharedkey(struct net_device *ndev,
1473 struct cfg80211_connect_params *sme)
1474{
1475 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1476 struct brcmf_cfg80211_security *sec;
1477 struct brcmf_wsec_key key;
1478 s32 val;
1479 s32 err = 0;
1480
1481 brcmf_dbg(CONN, "key len (%d)\n", sme->key_len);
1482
1483 if (sme->key_len == 0)
1484 return 0;
1485
1486 sec = &profile->sec;
1487 brcmf_dbg(CONN, "wpa_versions 0x%x cipher_pairwise 0x%x\n",
1488 sec->wpa_versions, sec->cipher_pairwise);
1489
1490 if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2))
1491 return 0;
1492
1493 if (!(sec->cipher_pairwise &
1494 (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)))
1495 return 0;
1496
1497 memset(&key, 0, sizeof(key));
1498 key.len = (u32) sme->key_len;
1499 key.index = (u32) sme->key_idx;
1500 if (key.len > sizeof(key.data)) {
1501 brcmf_err("Too long key length (%u)\n", key.len);
1502 return -EINVAL;
1503 }
1504 memcpy(key.data, sme->key, key.len);
1505 key.flags = BRCMF_PRIMARY_KEY;
1506 switch (sec->cipher_pairwise) {
1507 case WLAN_CIPHER_SUITE_WEP40:
1508 key.algo = CRYPTO_ALGO_WEP1;
1509 break;
1510 case WLAN_CIPHER_SUITE_WEP104:
1511 key.algo = CRYPTO_ALGO_WEP128;
1512 break;
1513 default:
1514 brcmf_err("Invalid algorithm (%d)\n",
1515 sme->crypto.ciphers_pairwise[0]);
1516 return -EINVAL;
1517 }
1518 /* Set the new key/index */
1519 brcmf_dbg(CONN, "key length (%d) key index (%d) algo (%d)\n",
1520 key.len, key.index, key.algo);
1521 brcmf_dbg(CONN, "key \"%s\"\n", key.data);
1522 err = send_key_to_dongle(ndev, &key);
1523 if (err)
1524 return err;
1525
1526 if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) {
1527 brcmf_dbg(CONN, "set auth_type to shared key\n");
1528 val = WL_AUTH_SHARED_KEY; /* shared key */
1529 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1530 if (err)
1531 brcmf_err("set auth failed (%d)\n", err);
1532 }
1533 return err;
1534}
1535
1536static
1537enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp,
1538 enum nl80211_auth_type type)
1539{
1540 u32 ci;
1541 if (type == NL80211_AUTHTYPE_AUTOMATIC) {
1542 /* shift to ignore chip revision */
1543 ci = brcmf_get_chip_info(ifp) >> 4;
1544 switch (ci) {
1545 case 43236:
1546 brcmf_dbg(CONN, "43236 WAR: use OPEN instead of AUTO\n");
1547 return NL80211_AUTHTYPE_OPEN_SYSTEM;
1548 default:
1549 break;
1550 }
1551 }
1552 return type;
1553}
1554
1555static s32
1556brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
1557 struct cfg80211_connect_params *sme)
1558{
1559 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1560 struct brcmf_if *ifp = netdev_priv(ndev);
1561 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1562 struct ieee80211_channel *chan = sme->channel;
1563 struct brcmf_join_params join_params;
1564 size_t join_params_size;
1565 struct brcmf_tlv *rsn_ie;
1566 struct brcmf_vs_tlv *wpa_ie;
1567 void *ie;
1568 u32 ie_len;
1569 struct brcmf_ext_join_params_le *ext_join_params;
1570 u16 chanspec;
1571
1572 s32 err = 0;
1573
1574 brcmf_dbg(TRACE, "Enter\n");
1575 if (!check_vif_up(ifp->vif))
1576 return -EIO;
1577
1578 if (!sme->ssid) {
1579 brcmf_err("Invalid ssid\n");
1580 return -EOPNOTSUPP;
1581 }
1582
1583 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) {
1584 /* A normal (non P2P) connection request setup. */
1585 ie = NULL;
1586 ie_len = 0;
1587 /* find the WPA_IE */
1588 wpa_ie = brcmf_find_wpaie((u8 *)sme->ie, sme->ie_len);
1589 if (wpa_ie) {
1590 ie = wpa_ie;
1591 ie_len = wpa_ie->len + TLV_HDR_LEN;
1592 } else {
1593 /* find the RSN_IE */
1594 rsn_ie = brcmf_parse_tlvs((u8 *)sme->ie, sme->ie_len,
1595 WLAN_EID_RSN);
1596 if (rsn_ie) {
1597 ie = rsn_ie;
1598 ie_len = rsn_ie->len + TLV_HDR_LEN;
1599 }
1600 }
1601 brcmf_fil_iovar_data_set(ifp, "wpaie", ie, ie_len);
1602 }
1603
1604 err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG,
1605 sme->ie, sme->ie_len);
1606 if (err)
1607 brcmf_err("Set Assoc REQ IE Failed\n");
1608 else
1609 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n");
1610
1611 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1612
1613 if (chan) {
1614 cfg->channel =
1615 ieee80211_frequency_to_channel(chan->center_freq);
1616 chanspec = channel_to_chanspec(&cfg->d11inf, chan);
1617 brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n",
1618 cfg->channel, chan->center_freq, chanspec);
1619 } else {
1620 cfg->channel = 0;
1621 chanspec = 0;
1622 }
1623
1624 brcmf_dbg(INFO, "ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len);
1625
1626 err = brcmf_set_wpa_version(ndev, sme);
1627 if (err) {
1628 brcmf_err("wl_set_wpa_version failed (%d)\n", err);
1629 goto done;
1630 }
1631
1632 sme->auth_type = brcmf_war_auth_type(ifp, sme->auth_type);
1633 err = brcmf_set_auth_type(ndev, sme);
1634 if (err) {
1635 brcmf_err("wl_set_auth_type failed (%d)\n", err);
1636 goto done;
1637 }
1638
1639 err = brcmf_set_set_cipher(ndev, sme);
1640 if (err) {
1641 brcmf_err("wl_set_set_cipher failed (%d)\n", err);
1642 goto done;
1643 }
1644
1645 err = brcmf_set_key_mgmt(ndev, sme);
1646 if (err) {
1647 brcmf_err("wl_set_key_mgmt failed (%d)\n", err);
1648 goto done;
1649 }
1650
1651 err = brcmf_set_sharedkey(ndev, sme);
1652 if (err) {
1653 brcmf_err("brcmf_set_sharedkey failed (%d)\n", err);
1654 goto done;
1655 }
1656
1657 profile->ssid.SSID_len = min_t(u32, (u32)sizeof(profile->ssid.SSID),
1658 (u32)sme->ssid_len);
1659 memcpy(&profile->ssid.SSID, sme->ssid, profile->ssid.SSID_len);
1660 if (profile->ssid.SSID_len < IEEE80211_MAX_SSID_LEN) {
1661 profile->ssid.SSID[profile->ssid.SSID_len] = 0;
1662 brcmf_dbg(CONN, "SSID \"%s\", len (%d)\n", profile->ssid.SSID,
1663 profile->ssid.SSID_len);
1664 }
1665
1666 /* Join with specific BSSID and cached SSID
1667 * If SSID is zero join based on BSSID only
1668 */
1669 join_params_size = offsetof(struct brcmf_ext_join_params_le, assoc_le) +
1670 offsetof(struct brcmf_assoc_params_le, chanspec_list);
1671 if (cfg->channel)
1672 join_params_size += sizeof(u16);
1673 ext_join_params = kzalloc(join_params_size, GFP_KERNEL);
1674 if (ext_join_params == NULL) {
1675 err = -ENOMEM;
1676 goto done;
1677 }
1678 ext_join_params->ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1679 memcpy(&ext_join_params->ssid_le.SSID, sme->ssid,
1680 profile->ssid.SSID_len);
1681 /*increase dwell time to receive probe response or detect Beacon
1682 * from target AP at a noisy air only during connect command
1683 */
1684 ext_join_params->scan_le.active_time =
1685 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS);
1686 ext_join_params->scan_le.passive_time =
1687 cpu_to_le32(BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS);
1688 /* Set up join scan parameters */
1689 ext_join_params->scan_le.scan_type = -1;
1690 /* to sync with presence period of VSDB GO.
1691 * Send probe request more frequently. Probe request will be stopped
1692 * when it gets probe response from target AP/GO.
1693 */
1694 ext_join_params->scan_le.nprobes =
1695 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS /
1696 BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS);
1697 ext_join_params->scan_le.home_time = cpu_to_le32(-1);
1698
1699 if (sme->bssid)
1700 memcpy(&ext_join_params->assoc_le.bssid, sme->bssid, ETH_ALEN);
1701 else
1702 memset(&ext_join_params->assoc_le.bssid, 0xFF, ETH_ALEN);
1703
1704 if (cfg->channel) {
1705 ext_join_params->assoc_le.chanspec_num = cpu_to_le32(1);
1706
1707 ext_join_params->assoc_le.chanspec_list[0] =
1708 cpu_to_le16(chanspec);
1709 }
1710
1711 err = brcmf_fil_bsscfg_data_set(ifp, "join", ext_join_params,
1712 join_params_size);
1713 kfree(ext_join_params);
1714 if (!err)
1715 /* This is it. join command worked, we are done */
1716 goto done;
1717
1718 /* join command failed, fallback to set ssid */
1719 memset(&join_params, 0, sizeof(join_params));
1720 join_params_size = sizeof(join_params.ssid_le);
1721
1722 memcpy(&join_params.ssid_le.SSID, sme->ssid, profile->ssid.SSID_len);
1723 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1724
1725 if (sme->bssid)
1726 memcpy(join_params.params_le.bssid, sme->bssid, ETH_ALEN);
1727 else
1728 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1729
1730 if (cfg->channel) {
1731 join_params.params_le.chanspec_list[0] = cpu_to_le16(chanspec);
1732 join_params.params_le.chanspec_num = cpu_to_le32(1);
1733 join_params_size += sizeof(join_params.params_le);
1734 }
1735 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1736 &join_params, join_params_size);
1737 if (err)
1738 brcmf_err("BRCMF_C_SET_SSID failed (%d)\n", err);
1739
1740done:
1741 if (err)
1742 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1743 brcmf_dbg(TRACE, "Exit\n");
1744 return err;
1745}
1746
1747static s32
1748brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
1749 u16 reason_code)
1750{
1751 struct brcmf_if *ifp = netdev_priv(ndev);
1752 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1753 struct brcmf_scb_val_le scbval;
1754 s32 err = 0;
1755
1756 brcmf_dbg(TRACE, "Enter. Reason code = %d\n", reason_code);
1757 if (!check_vif_up(ifp->vif))
1758 return -EIO;
1759
1760 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
1761
1762 memcpy(&scbval.ea, &profile->bssid, ETH_ALEN);
1763 scbval.val = cpu_to_le32(reason_code);
1764 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC,
1765 &scbval, sizeof(scbval));
1766 if (err)
1767 brcmf_err("error (%d)\n", err);
1768
1769 brcmf_dbg(TRACE, "Exit\n");
1770 return err;
1771}
1772
1773static s32
1774brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
1775 enum nl80211_tx_power_setting type, s32 mbm)
1776{
1777
1778 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1779 struct net_device *ndev = cfg_to_ndev(cfg);
1780 struct brcmf_if *ifp = netdev_priv(ndev);
1781 u16 txpwrmw;
1782 s32 err = 0;
1783 s32 disable = 0;
1784 s32 dbm = MBM_TO_DBM(mbm);
1785
1786 brcmf_dbg(TRACE, "Enter\n");
1787 if (!check_vif_up(ifp->vif))
1788 return -EIO;
1789
1790 switch (type) {
1791 case NL80211_TX_POWER_AUTOMATIC:
1792 break;
1793 case NL80211_TX_POWER_LIMITED:
1794 case NL80211_TX_POWER_FIXED:
1795 if (dbm < 0) {
1796 brcmf_err("TX_POWER_FIXED - dbm is negative\n");
1797 err = -EINVAL;
1798 goto done;
1799 }
1800 break;
1801 }
1802 /* Make sure radio is off or on as far as software is concerned */
1803 disable = WL_RADIO_SW_DISABLE << 16;
1804 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable);
1805 if (err)
1806 brcmf_err("WLC_SET_RADIO error (%d)\n", err);
1807
1808 if (dbm > 0xffff)
1809 txpwrmw = 0xffff;
1810 else
1811 txpwrmw = (u16) dbm;
1812 err = brcmf_fil_iovar_int_set(ifp, "qtxpower",
1813 (s32)brcmf_mw_to_qdbm(txpwrmw));
1814 if (err)
1815 brcmf_err("qtxpower error (%d)\n", err);
1816 cfg->conf->tx_power = dbm;
1817
1818done:
1819 brcmf_dbg(TRACE, "Exit\n");
1820 return err;
1821}
1822
1823static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy,
1824 struct wireless_dev *wdev,
1825 s32 *dbm)
1826{
1827 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1828 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
1829 s32 txpwrdbm;
1830 u8 result;
1831 s32 err = 0;
1832
1833 brcmf_dbg(TRACE, "Enter\n");
1834 if (!check_vif_up(ifp->vif))
1835 return -EIO;
1836
1837 err = brcmf_fil_iovar_int_get(ifp, "qtxpower", &txpwrdbm);
1838 if (err) {
1839 brcmf_err("error (%d)\n", err);
1840 goto done;
1841 }
1842
1843 result = (u8) (txpwrdbm & ~WL_TXPWR_OVERRIDE);
1844 *dbm = (s32) brcmf_qdbm_to_mw(result);
1845
1846done:
1847 brcmf_dbg(TRACE, "Exit\n");
1848 return err;
1849}
1850
1851static s32
1852brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev,
1853 u8 key_idx, bool unicast, bool multicast)
1854{
1855 struct brcmf_if *ifp = netdev_priv(ndev);
1856 u32 index;
1857 u32 wsec;
1858 s32 err = 0;
1859
1860 brcmf_dbg(TRACE, "Enter\n");
1861 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
1862 if (!check_vif_up(ifp->vif))
1863 return -EIO;
1864
1865 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
1866 if (err) {
1867 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
1868 goto done;
1869 }
1870
1871 if (wsec & WEP_ENABLED) {
1872 /* Just select a new current key */
1873 index = key_idx;
1874 err = brcmf_fil_cmd_int_set(ifp,
1875 BRCMF_C_SET_KEY_PRIMARY, index);
1876 if (err)
1877 brcmf_err("error (%d)\n", err);
1878 }
1879done:
1880 brcmf_dbg(TRACE, "Exit\n");
1881 return err;
1882}
1883
1884static s32
1885brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev,
1886 u8 key_idx, const u8 *mac_addr, struct key_params *params)
1887{
1888 struct brcmf_if *ifp = netdev_priv(ndev);
1889 struct brcmf_wsec_key key;
1890 s32 err = 0;
1891 u8 keybuf[8];
1892
1893 memset(&key, 0, sizeof(key));
1894 key.index = (u32) key_idx;
1895 /* Instead of bcast for ea address for default wep keys,
1896 driver needs it to be Null */
1897 if (!is_multicast_ether_addr(mac_addr))
1898 memcpy((char *)&key.ea, (void *)mac_addr, ETH_ALEN);
1899 key.len = (u32) params->key_len;
1900 /* check for key index change */
1901 if (key.len == 0) {
1902 /* key delete */
1903 err = send_key_to_dongle(ndev, &key);
1904 if (err)
1905 brcmf_err("key delete error (%d)\n", err);
1906 } else {
1907 if (key.len > sizeof(key.data)) {
1908 brcmf_err("Invalid key length (%d)\n", key.len);
1909 return -EINVAL;
1910 }
1911
1912 brcmf_dbg(CONN, "Setting the key index %d\n", key.index);
1913 memcpy(key.data, params->key, key.len);
1914
1915 if ((ifp->vif->mode != WL_MODE_AP) &&
1916 (params->cipher == WLAN_CIPHER_SUITE_TKIP)) {
1917 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
1918 memcpy(keybuf, &key.data[24], sizeof(keybuf));
1919 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
1920 memcpy(&key.data[16], keybuf, sizeof(keybuf));
1921 }
1922
1923 /* if IW_ENCODE_EXT_RX_SEQ_VALID set */
1924 if (params->seq && params->seq_len == 6) {
1925 /* rx iv */
1926 u8 *ivptr;
1927 ivptr = (u8 *) params->seq;
1928 key.rxiv.hi = (ivptr[5] << 24) | (ivptr[4] << 16) |
1929 (ivptr[3] << 8) | ivptr[2];
1930 key.rxiv.lo = (ivptr[1] << 8) | ivptr[0];
1931 key.iv_initialized = true;
1932 }
1933
1934 switch (params->cipher) {
1935 case WLAN_CIPHER_SUITE_WEP40:
1936 key.algo = CRYPTO_ALGO_WEP1;
1937 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
1938 break;
1939 case WLAN_CIPHER_SUITE_WEP104:
1940 key.algo = CRYPTO_ALGO_WEP128;
1941 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
1942 break;
1943 case WLAN_CIPHER_SUITE_TKIP:
1944 key.algo = CRYPTO_ALGO_TKIP;
1945 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
1946 break;
1947 case WLAN_CIPHER_SUITE_AES_CMAC:
1948 key.algo = CRYPTO_ALGO_AES_CCM;
1949 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
1950 break;
1951 case WLAN_CIPHER_SUITE_CCMP:
1952 key.algo = CRYPTO_ALGO_AES_CCM;
1953 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
1954 break;
1955 default:
1956 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
1957 return -EINVAL;
1958 }
1959 err = send_key_to_dongle(ndev, &key);
1960 if (err)
1961 brcmf_err("wsec_key error (%d)\n", err);
1962 }
1963 return err;
1964}
1965
1966static s32
1967brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
1968 u8 key_idx, bool pairwise, const u8 *mac_addr,
1969 struct key_params *params)
1970{
1971 struct brcmf_if *ifp = netdev_priv(ndev);
1972 struct brcmf_wsec_key key;
1973 s32 val;
1974 s32 wsec;
1975 s32 err = 0;
1976 u8 keybuf[8];
1977
1978 brcmf_dbg(TRACE, "Enter\n");
1979 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
1980 if (!check_vif_up(ifp->vif))
1981 return -EIO;
1982
1983 if (mac_addr) {
1984 brcmf_dbg(TRACE, "Exit");
1985 return brcmf_add_keyext(wiphy, ndev, key_idx, mac_addr, params);
1986 }
1987 memset(&key, 0, sizeof(key));
1988
1989 key.len = (u32) params->key_len;
1990 key.index = (u32) key_idx;
1991
1992 if (key.len > sizeof(key.data)) {
1993 brcmf_err("Too long key length (%u)\n", key.len);
1994 err = -EINVAL;
1995 goto done;
1996 }
1997 memcpy(key.data, params->key, key.len);
1998
1999 key.flags = BRCMF_PRIMARY_KEY;
2000 switch (params->cipher) {
2001 case WLAN_CIPHER_SUITE_WEP40:
2002 key.algo = CRYPTO_ALGO_WEP1;
2003 val = WEP_ENABLED;
2004 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2005 break;
2006 case WLAN_CIPHER_SUITE_WEP104:
2007 key.algo = CRYPTO_ALGO_WEP128;
2008 val = WEP_ENABLED;
2009 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2010 break;
2011 case WLAN_CIPHER_SUITE_TKIP:
2012 if (ifp->vif->mode != WL_MODE_AP) {
2013 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
2014 memcpy(keybuf, &key.data[24], sizeof(keybuf));
2015 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
2016 memcpy(&key.data[16], keybuf, sizeof(keybuf));
2017 }
2018 key.algo = CRYPTO_ALGO_TKIP;
2019 val = TKIP_ENABLED;
2020 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2021 break;
2022 case WLAN_CIPHER_SUITE_AES_CMAC:
2023 key.algo = CRYPTO_ALGO_AES_CCM;
2024 val = AES_ENABLED;
2025 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2026 break;
2027 case WLAN_CIPHER_SUITE_CCMP:
2028 key.algo = CRYPTO_ALGO_AES_CCM;
2029 val = AES_ENABLED;
2030 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2031 break;
2032 default:
2033 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2034 err = -EINVAL;
2035 goto done;
2036 }
2037
2038 err = send_key_to_dongle(ndev, &key);
2039 if (err)
2040 goto done;
2041
2042 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2043 if (err) {
2044 brcmf_err("get wsec error (%d)\n", err);
2045 goto done;
2046 }
2047 wsec |= val;
2048 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2049 if (err) {
2050 brcmf_err("set wsec error (%d)\n", err);
2051 goto done;
2052 }
2053
2054done:
2055 brcmf_dbg(TRACE, "Exit\n");
2056 return err;
2057}
2058
2059static s32
2060brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
2061 u8 key_idx, bool pairwise, const u8 *mac_addr)
2062{
2063 struct brcmf_if *ifp = netdev_priv(ndev);
2064 struct brcmf_wsec_key key;
2065 s32 err = 0;
2066
2067 brcmf_dbg(TRACE, "Enter\n");
2068 if (!check_vif_up(ifp->vif))
2069 return -EIO;
2070
2071 if (key_idx >= DOT11_MAX_DEFAULT_KEYS) {
2072 /* we ignore this key index in this case */
2073 brcmf_err("invalid key index (%d)\n", key_idx);
2074 return -EINVAL;
2075 }
2076
2077 memset(&key, 0, sizeof(key));
2078
2079 key.index = (u32) key_idx;
2080 key.flags = BRCMF_PRIMARY_KEY;
2081 key.algo = CRYPTO_ALGO_OFF;
2082
2083 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2084
2085 /* Set the new key/index */
2086 err = send_key_to_dongle(ndev, &key);
2087
2088 brcmf_dbg(TRACE, "Exit\n");
2089 return err;
2090}
2091
2092static s32
2093brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
2094 u8 key_idx, bool pairwise, const u8 *mac_addr, void *cookie,
2095 void (*callback) (void *cookie, struct key_params * params))
2096{
2097 struct key_params params;
2098 struct brcmf_if *ifp = netdev_priv(ndev);
2099 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2100 struct brcmf_cfg80211_security *sec;
2101 s32 wsec;
2102 s32 err = 0;
2103
2104 brcmf_dbg(TRACE, "Enter\n");
2105 brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2106 if (!check_vif_up(ifp->vif))
2107 return -EIO;
2108
2109 memset(&params, 0, sizeof(params));
2110
2111 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2112 if (err) {
2113 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2114 /* Ignore this error, may happen during DISASSOC */
2115 err = -EAGAIN;
2116 goto done;
2117 }
2118 if (wsec & WEP_ENABLED) {
2119 sec = &profile->sec;
2120 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) {
2121 params.cipher = WLAN_CIPHER_SUITE_WEP40;
2122 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2123 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) {
2124 params.cipher = WLAN_CIPHER_SUITE_WEP104;
2125 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2126 }
2127 } else if (wsec & TKIP_ENABLED) {
2128 params.cipher = WLAN_CIPHER_SUITE_TKIP;
2129 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2130 } else if (wsec & AES_ENABLED) {
2131 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
2132 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2133 } else {
2134 brcmf_err("Invalid algo (0x%x)\n", wsec);
2135 err = -EINVAL;
2136 goto done;
2137 }
2138 callback(cookie, &params);
2139
2140done:
2141 brcmf_dbg(TRACE, "Exit\n");
2142 return err;
2143}
2144
2145static s32
2146brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy,
2147 struct net_device *ndev, u8 key_idx)
2148{
2149 brcmf_dbg(INFO, "Not supported\n");
2150
2151 return -EOPNOTSUPP;
2152}
2153
2154static s32
2155brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
2156 u8 *mac, struct station_info *sinfo)
2157{
2158 struct brcmf_if *ifp = netdev_priv(ndev);
2159 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2160 struct brcmf_scb_val_le scb_val;
2161 int rssi;
2162 s32 rate;
2163 s32 err = 0;
2164 u8 *bssid = profile->bssid;
2165 struct brcmf_sta_info_le sta_info_le;
2166
2167 brcmf_dbg(TRACE, "Enter, MAC %pM\n", mac);
2168 if (!check_vif_up(ifp->vif))
2169 return -EIO;
2170
2171 if (ifp->vif->mode == WL_MODE_AP) {
2172 memcpy(&sta_info_le, mac, ETH_ALEN);
2173 err = brcmf_fil_iovar_data_get(ifp, "sta_info",
2174 &sta_info_le,
2175 sizeof(sta_info_le));
2176 if (err < 0) {
2177 brcmf_err("GET STA INFO failed, %d\n", err);
2178 goto done;
2179 }
2180 sinfo->filled = STATION_INFO_INACTIVE_TIME;
2181 sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000;
2182 if (le32_to_cpu(sta_info_le.flags) & BRCMF_STA_ASSOC) {
2183 sinfo->filled |= STATION_INFO_CONNECTED_TIME;
2184 sinfo->connected_time = le32_to_cpu(sta_info_le.in);
2185 }
2186 brcmf_dbg(TRACE, "STA idle time : %d ms, connected time :%d sec\n",
2187 sinfo->inactive_time, sinfo->connected_time);
2188 } else if (ifp->vif->mode == WL_MODE_BSS) {
2189 if (memcmp(mac, bssid, ETH_ALEN)) {
2190 brcmf_err("Wrong Mac address cfg_mac-%pM wl_bssid-%pM\n",
2191 mac, bssid);
2192 err = -ENOENT;
2193 goto done;
2194 }
2195 /* Report the current tx rate */
2196 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate);
2197 if (err) {
2198 brcmf_err("Could not get rate (%d)\n", err);
2199 goto done;
2200 } else {
2201 sinfo->filled |= STATION_INFO_TX_BITRATE;
2202 sinfo->txrate.legacy = rate * 5;
2203 brcmf_dbg(CONN, "Rate %d Mbps\n", rate / 2);
2204 }
2205
2206 if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
2207 &ifp->vif->sme_state)) {
2208 memset(&scb_val, 0, sizeof(scb_val));
2209 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI,
2210 &scb_val, sizeof(scb_val));
2211 if (err) {
2212 brcmf_err("Could not get rssi (%d)\n", err);
2213 goto done;
2214 } else {
2215 rssi = le32_to_cpu(scb_val.val);
2216 sinfo->filled |= STATION_INFO_SIGNAL;
2217 sinfo->signal = rssi;
2218 brcmf_dbg(CONN, "RSSI %d dBm\n", rssi);
2219 }
2220 }
2221 } else
2222 err = -EPERM;
2223done:
2224 brcmf_dbg(TRACE, "Exit\n");
2225 return err;
2226}
2227
2228static s32
2229brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
2230 bool enabled, s32 timeout)
2231{
2232 s32 pm;
2233 s32 err = 0;
2234 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2235 struct brcmf_if *ifp = netdev_priv(ndev);
2236
2237 brcmf_dbg(TRACE, "Enter\n");
2238
2239 /*
2240 * Powersave enable/disable request is coming from the
2241 * cfg80211 even before the interface is up. In that
2242 * scenario, driver will be storing the power save
2243 * preference in cfg struct to apply this to
2244 * FW later while initializing the dongle
2245 */
2246 cfg->pwr_save = enabled;
2247 if (!check_vif_up(ifp->vif)) {
2248
2249 brcmf_dbg(INFO, "Device is not ready, storing the value in cfg_info struct\n");
2250 goto done;
2251 }
2252
2253 pm = enabled ? PM_FAST : PM_OFF;
2254 /* Do not enable the power save after assoc if it is a p2p interface */
2255 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) {
2256 brcmf_dbg(INFO, "Do not enable power save for P2P clients\n");
2257 pm = PM_OFF;
2258 }
2259 brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled"));
2260
2261 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm);
2262 if (err) {
2263 if (err == -ENODEV)
2264 brcmf_err("net_device is not ready yet\n");
2265 else
2266 brcmf_err("error (%d)\n", err);
2267 }
2268done:
2269 brcmf_dbg(TRACE, "Exit\n");
2270 return err;
2271}
2272
2273static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
2274 struct brcmf_bss_info_le *bi)
2275{
2276 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2277 struct ieee80211_channel *notify_channel;
2278 struct cfg80211_bss *bss;
2279 struct ieee80211_supported_band *band;
2280 struct brcmu_chan ch;
2281 s32 err = 0;
2282 u16 channel;
2283 u32 freq;
2284 u16 notify_capability;
2285 u16 notify_interval;
2286 u8 *notify_ie;
2287 size_t notify_ielen;
2288 s32 notify_signal;
2289
2290 if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) {
2291 brcmf_err("Bss info is larger than buffer. Discarding\n");
2292 return 0;
2293 }
2294
2295 if (!bi->ctl_ch) {
2296 ch.chspec = le16_to_cpu(bi->chanspec);
2297 cfg->d11inf.decchspec(&ch);
2298 bi->ctl_ch = ch.chnum;
2299 }
2300 channel = bi->ctl_ch;
2301
2302 if (channel <= CH_MAX_2G_CHANNEL)
2303 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2304 else
2305 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2306
2307 freq = ieee80211_channel_to_frequency(channel, band->band);
2308 notify_channel = ieee80211_get_channel(wiphy, freq);
2309
2310 notify_capability = le16_to_cpu(bi->capability);
2311 notify_interval = le16_to_cpu(bi->beacon_period);
2312 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2313 notify_ielen = le32_to_cpu(bi->ie_length);
2314 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2315
2316 brcmf_dbg(CONN, "bssid: %pM\n", bi->BSSID);
2317 brcmf_dbg(CONN, "Channel: %d(%d)\n", channel, freq);
2318 brcmf_dbg(CONN, "Capability: %X\n", notify_capability);
2319 brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval);
2320 brcmf_dbg(CONN, "Signal: %d\n", notify_signal);
2321
2322 bss = cfg80211_inform_bss(wiphy, notify_channel, (const u8 *)bi->BSSID,
2323 0, notify_capability, notify_interval, notify_ie,
2324 notify_ielen, notify_signal, GFP_KERNEL);
2325
2326 if (!bss)
2327 return -ENOMEM;
2328
2329 cfg80211_put_bss(wiphy, bss);
2330
2331 return err;
2332}
2333
2334static struct brcmf_bss_info_le *
2335next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss)
2336{
2337 if (bss == NULL)
2338 return list->bss_info_le;
2339 return (struct brcmf_bss_info_le *)((unsigned long)bss +
2340 le32_to_cpu(bss->length));
2341}
2342
2343static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg)
2344{
2345 struct brcmf_scan_results *bss_list;
2346 struct brcmf_bss_info_le *bi = NULL; /* must be initialized */
2347 s32 err = 0;
2348 int i;
2349
2350 bss_list = cfg->bss_list;
2351 if (bss_list->count != 0 &&
2352 bss_list->version != BRCMF_BSS_INFO_VERSION) {
2353 brcmf_err("Version %d != WL_BSS_INFO_VERSION\n",
2354 bss_list->version);
2355 return -EOPNOTSUPP;
2356 }
2357 brcmf_dbg(SCAN, "scanned AP count (%d)\n", bss_list->count);
2358 for (i = 0; i < bss_list->count; i++) {
2359 bi = next_bss_le(bss_list, bi);
2360 err = brcmf_inform_single_bss(cfg, bi);
2361 if (err)
2362 break;
2363 }
2364 return err;
2365}
2366
2367static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg,
2368 struct net_device *ndev, const u8 *bssid)
2369{
2370 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2371 struct ieee80211_channel *notify_channel;
2372 struct brcmf_bss_info_le *bi = NULL;
2373 struct ieee80211_supported_band *band;
2374 struct cfg80211_bss *bss;
2375 struct brcmu_chan ch;
2376 u8 *buf = NULL;
2377 s32 err = 0;
2378 u32 freq;
2379 u16 notify_capability;
2380 u16 notify_interval;
2381 u8 *notify_ie;
2382 size_t notify_ielen;
2383 s32 notify_signal;
2384
2385 brcmf_dbg(TRACE, "Enter\n");
2386
2387 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
2388 if (buf == NULL) {
2389 err = -ENOMEM;
2390 goto CleanUp;
2391 }
2392
2393 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
2394
2395 err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO,
2396 buf, WL_BSS_INFO_MAX);
2397 if (err) {
2398 brcmf_err("WLC_GET_BSS_INFO failed: %d\n", err);
2399 goto CleanUp;
2400 }
2401
2402 bi = (struct brcmf_bss_info_le *)(buf + 4);
2403
2404 ch.chspec = le16_to_cpu(bi->chanspec);
2405 cfg->d11inf.decchspec(&ch);
2406
2407 if (ch.band == BRCMU_CHAN_BAND_2G)
2408 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2409 else
2410 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2411
2412 freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
2413 notify_channel = ieee80211_get_channel(wiphy, freq);
2414
2415 notify_capability = le16_to_cpu(bi->capability);
2416 notify_interval = le16_to_cpu(bi->beacon_period);
2417 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2418 notify_ielen = le32_to_cpu(bi->ie_length);
2419 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2420
2421 brcmf_dbg(CONN, "channel: %d(%d)\n", ch.chnum, freq);
2422 brcmf_dbg(CONN, "capability: %X\n", notify_capability);
2423 brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval);
2424 brcmf_dbg(CONN, "signal: %d\n", notify_signal);
2425
2426 bss = cfg80211_inform_bss(wiphy, notify_channel, bssid,
2427 0, notify_capability, notify_interval,
2428 notify_ie, notify_ielen, notify_signal, GFP_KERNEL);
2429
2430 if (!bss) {
2431 err = -ENOMEM;
2432 goto CleanUp;
2433 }
2434
2435 cfg80211_put_bss(wiphy, bss);
2436
2437CleanUp:
2438
2439 kfree(buf);
2440
2441 brcmf_dbg(TRACE, "Exit\n");
2442
2443 return err;
2444}
2445
2446static bool brcmf_is_ibssmode(struct brcmf_cfg80211_vif *vif)
2447{
2448 return vif->mode == WL_MODE_IBSS;
2449}
2450
2451static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg,
2452 struct brcmf_if *ifp)
2453{
2454 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ifp->ndev);
2455 struct brcmf_bss_info_le *bi;
2456 struct brcmf_ssid *ssid;
2457 struct brcmf_tlv *tim;
2458 u16 beacon_interval;
2459 u8 dtim_period;
2460 size_t ie_len;
2461 u8 *ie;
2462 s32 err = 0;
2463
2464 brcmf_dbg(TRACE, "Enter\n");
2465 if (brcmf_is_ibssmode(ifp->vif))
2466 return err;
2467
2468 ssid = &profile->ssid;
2469
2470 *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX);
2471 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
2472 cfg->extra_buf, WL_EXTRA_BUF_MAX);
2473 if (err) {
2474 brcmf_err("Could not get bss info %d\n", err);
2475 goto update_bss_info_out;
2476 }
2477
2478 bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4);
2479 err = brcmf_inform_single_bss(cfg, bi);
2480 if (err)
2481 goto update_bss_info_out;
2482
2483 ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset);
2484 ie_len = le32_to_cpu(bi->ie_length);
2485 beacon_interval = le16_to_cpu(bi->beacon_period);
2486
2487 tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM);
2488 if (tim)
2489 dtim_period = tim->data[1];
2490 else {
2491 /*
2492 * active scan was done so we could not get dtim
2493 * information out of probe response.
2494 * so we speficially query dtim information to dongle.
2495 */
2496 u32 var;
2497 err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var);
2498 if (err) {
2499 brcmf_err("wl dtim_assoc failed (%d)\n", err);
2500 goto update_bss_info_out;
2501 }
2502 dtim_period = (u8)var;
2503 }
2504
2505update_bss_info_out:
2506 brcmf_dbg(TRACE, "Exit");
2507 return err;
2508}
2509
2510void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg)
2511{
2512 struct escan_info *escan = &cfg->escan_info;
2513
2514 set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2515 if (cfg->scan_request) {
2516 escan->escan_state = WL_ESCAN_STATE_IDLE;
2517 brcmf_notify_escan_complete(cfg, escan->ifp, true, true);
2518 }
2519 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2520 clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2521}
2522
2523static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
2524{
2525 struct brcmf_cfg80211_info *cfg =
2526 container_of(work, struct brcmf_cfg80211_info,
2527 escan_timeout_work);
2528
2529 brcmf_notify_escan_complete(cfg, cfg->escan_info.ifp, true, true);
2530}
2531
2532static void brcmf_escan_timeout(unsigned long data)
2533{
2534 struct brcmf_cfg80211_info *cfg =
2535 (struct brcmf_cfg80211_info *)data;
2536
2537 if (cfg->scan_request) {
2538 brcmf_err("timer expired\n");
2539 schedule_work(&cfg->escan_timeout_work);
2540 }
2541}
2542
2543static s32
2544brcmf_compare_update_same_bss(struct brcmf_cfg80211_info *cfg,
2545 struct brcmf_bss_info_le *bss,
2546 struct brcmf_bss_info_le *bss_info_le)
2547{
2548 struct brcmu_chan ch_bss, ch_bss_info_le;
2549
2550 ch_bss.chspec = le16_to_cpu(bss->chanspec);
2551 cfg->d11inf.decchspec(&ch_bss);
2552 ch_bss_info_le.chspec = le16_to_cpu(bss_info_le->chanspec);
2553 cfg->d11inf.decchspec(&ch_bss_info_le);
2554
2555 if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) &&
2556 ch_bss.band == ch_bss_info_le.band &&
2557 bss_info_le->SSID_len == bss->SSID_len &&
2558 !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) {
2559 if ((bss->flags & WLC_BSS_RSSI_ON_CHANNEL) ==
2560 (bss_info_le->flags & WLC_BSS_RSSI_ON_CHANNEL)) {
2561 s16 bss_rssi = le16_to_cpu(bss->RSSI);
2562 s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI);
2563
2564 /* preserve max RSSI if the measurements are
2565 * both on-channel or both off-channel
2566 */
2567 if (bss_info_rssi > bss_rssi)
2568 bss->RSSI = bss_info_le->RSSI;
2569 } else if ((bss->flags & WLC_BSS_RSSI_ON_CHANNEL) &&
2570 (bss_info_le->flags & WLC_BSS_RSSI_ON_CHANNEL) == 0) {
2571 /* preserve the on-channel rssi measurement
2572 * if the new measurement is off channel
2573 */
2574 bss->RSSI = bss_info_le->RSSI;
2575 bss->flags |= WLC_BSS_RSSI_ON_CHANNEL;
2576 }
2577 return 1;
2578 }
2579 return 0;
2580}
2581
2582static s32
2583brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
2584 const struct brcmf_event_msg *e, void *data)
2585{
2586 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
2587 s32 status;
2588 s32 err = 0;
2589 struct brcmf_escan_result_le *escan_result_le;
2590 struct brcmf_bss_info_le *bss_info_le;
2591 struct brcmf_bss_info_le *bss = NULL;
2592 u32 bi_length;
2593 struct brcmf_scan_results *list;
2594 u32 i;
2595 bool aborted;
2596
2597 status = e->status;
2598
2599 if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
2600 brcmf_err("scan not ready, bssidx=%d\n", ifp->bssidx);
2601 return -EPERM;
2602 }
2603
2604 if (status == BRCMF_E_STATUS_PARTIAL) {
2605 brcmf_dbg(SCAN, "ESCAN Partial result\n");
2606 escan_result_le = (struct brcmf_escan_result_le *) data;
2607 if (!escan_result_le) {
2608 brcmf_err("Invalid escan result (NULL pointer)\n");
2609 goto exit;
2610 }
2611 if (le16_to_cpu(escan_result_le->bss_count) != 1) {
2612 brcmf_err("Invalid bss_count %d: ignoring\n",
2613 escan_result_le->bss_count);
2614 goto exit;
2615 }
2616 bss_info_le = &escan_result_le->bss_info_le;
2617
2618 if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le))
2619 goto exit;
2620
2621 if (!cfg->scan_request) {
2622 brcmf_dbg(SCAN, "result without cfg80211 request\n");
2623 goto exit;
2624 }
2625
2626 bi_length = le32_to_cpu(bss_info_le->length);
2627 if (bi_length != (le32_to_cpu(escan_result_le->buflen) -
2628 WL_ESCAN_RESULTS_FIXED_SIZE)) {
2629 brcmf_err("Invalid bss_info length %d: ignoring\n",
2630 bi_length);
2631 goto exit;
2632 }
2633
2634 if (!(cfg_to_wiphy(cfg)->interface_modes &
2635 BIT(NL80211_IFTYPE_ADHOC))) {
2636 if (le16_to_cpu(bss_info_le->capability) &
2637 WLAN_CAPABILITY_IBSS) {
2638 brcmf_err("Ignoring IBSS result\n");
2639 goto exit;
2640 }
2641 }
2642
2643 list = (struct brcmf_scan_results *)
2644 cfg->escan_info.escan_buf;
2645 if (bi_length > WL_ESCAN_BUF_SIZE - list->buflen) {
2646 brcmf_err("Buffer is too small: ignoring\n");
2647 goto exit;
2648 }
2649
2650 for (i = 0; i < list->count; i++) {
2651 bss = bss ? (struct brcmf_bss_info_le *)
2652 ((unsigned char *)bss +
2653 le32_to_cpu(bss->length)) : list->bss_info_le;
2654 if (brcmf_compare_update_same_bss(cfg, bss,
2655 bss_info_le))
2656 goto exit;
2657 }
2658 memcpy(&(cfg->escan_info.escan_buf[list->buflen]),
2659 bss_info_le, bi_length);
2660 list->version = le32_to_cpu(bss_info_le->version);
2661 list->buflen += bi_length;
2662 list->count++;
2663 } else {
2664 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2665 if (brcmf_p2p_scan_finding_common_channel(cfg, NULL))
2666 goto exit;
2667 if (cfg->scan_request) {
2668 cfg->bss_list = (struct brcmf_scan_results *)
2669 cfg->escan_info.escan_buf;
2670 brcmf_inform_bss(cfg);
2671 aborted = status != BRCMF_E_STATUS_SUCCESS;
2672 brcmf_notify_escan_complete(cfg, ifp, aborted,
2673 false);
2674 } else
2675 brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n",
2676 status);
2677 }
2678exit:
2679 return err;
2680}
2681
2682static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg)
2683{
2684 brcmf_fweh_register(cfg->pub, BRCMF_E_ESCAN_RESULT,
2685 brcmf_cfg80211_escan_handler);
2686 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2687 /* Init scan_timeout timer */
2688 init_timer(&cfg->escan_timeout);
2689 cfg->escan_timeout.data = (unsigned long) cfg;
2690 cfg->escan_timeout.function = brcmf_escan_timeout;
2691 INIT_WORK(&cfg->escan_timeout_work,
2692 brcmf_cfg80211_escan_timeout_worker);
2693}
2694
2695static __always_inline void brcmf_delay(u32 ms)
2696{
2697 if (ms < 1000 / HZ) {
2698 cond_resched();
2699 mdelay(ms);
2700 } else {
2701 msleep(ms);
2702 }
2703}
2704
2705static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
2706{
2707 brcmf_dbg(TRACE, "Enter\n");
2708
2709 return 0;
2710}
2711
2712static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
2713 struct cfg80211_wowlan *wow)
2714{
2715 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2716 struct net_device *ndev = cfg_to_ndev(cfg);
2717 struct brcmf_cfg80211_vif *vif;
2718
2719 brcmf_dbg(TRACE, "Enter\n");
2720
2721 /*
2722 * if the primary net_device is not READY there is nothing
2723 * we can do but pray resume goes smoothly.
2724 */
2725 vif = ((struct brcmf_if *)netdev_priv(ndev))->vif;
2726 if (!check_vif_up(vif))
2727 goto exit;
2728
2729 list_for_each_entry(vif, &cfg->vif_list, list) {
2730 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state))
2731 continue;
2732 /*
2733 * While going to suspend if associated with AP disassociate
2734 * from AP to save power while system is in suspended state
2735 */
2736 brcmf_link_down(vif);
2737
2738 /* Make sure WPA_Supplicant receives all the event
2739 * generated due to DISASSOC call to the fw to keep
2740 * the state fw and WPA_Supplicant state consistent
2741 */
2742 brcmf_delay(500);
2743 }
2744
2745 /* end any scanning */
2746 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
2747 brcmf_abort_scanning(cfg);
2748
2749 /* Turn off watchdog timer */
2750 brcmf_set_mpc(netdev_priv(ndev), 1);
2751
2752exit:
2753 brcmf_dbg(TRACE, "Exit\n");
2754 /* clear any scanning activity */
2755 cfg->scan_status = 0;
2756 return 0;
2757}
2758
2759static __used s32
2760brcmf_update_pmklist(struct net_device *ndev,
2761 struct brcmf_cfg80211_pmk_list *pmk_list, s32 err)
2762{
2763 int i, j;
2764 int pmkid_len;
2765
2766 pmkid_len = le32_to_cpu(pmk_list->pmkids.npmkid);
2767
2768 brcmf_dbg(CONN, "No of elements %d\n", pmkid_len);
2769 for (i = 0; i < pmkid_len; i++) {
2770 brcmf_dbg(CONN, "PMKID[%d]: %pM =\n", i,
2771 &pmk_list->pmkids.pmkid[i].BSSID);
2772 for (j = 0; j < WLAN_PMKID_LEN; j++)
2773 brcmf_dbg(CONN, "%02x\n",
2774 pmk_list->pmkids.pmkid[i].PMKID[j]);
2775 }
2776
2777 if (!err)
2778 brcmf_fil_iovar_data_set(netdev_priv(ndev), "pmkid_info",
2779 (char *)pmk_list, sizeof(*pmk_list));
2780
2781 return err;
2782}
2783
2784static s32
2785brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev,
2786 struct cfg80211_pmksa *pmksa)
2787{
2788 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2789 struct brcmf_if *ifp = netdev_priv(ndev);
2790 struct pmkid_list *pmkids = &cfg->pmk_list->pmkids;
2791 s32 err = 0;
2792 int i;
2793 int pmkid_len;
2794
2795 brcmf_dbg(TRACE, "Enter\n");
2796 if (!check_vif_up(ifp->vif))
2797 return -EIO;
2798
2799 pmkid_len = le32_to_cpu(pmkids->npmkid);
2800 for (i = 0; i < pmkid_len; i++)
2801 if (!memcmp(pmksa->bssid, pmkids->pmkid[i].BSSID, ETH_ALEN))
2802 break;
2803 if (i < WL_NUM_PMKIDS_MAX) {
2804 memcpy(pmkids->pmkid[i].BSSID, pmksa->bssid, ETH_ALEN);
2805 memcpy(pmkids->pmkid[i].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
2806 if (i == pmkid_len) {
2807 pmkid_len++;
2808 pmkids->npmkid = cpu_to_le32(pmkid_len);
2809 }
2810 } else
2811 err = -EINVAL;
2812
2813 brcmf_dbg(CONN, "set_pmksa,IW_PMKSA_ADD - PMKID: %pM =\n",
2814 pmkids->pmkid[pmkid_len].BSSID);
2815 for (i = 0; i < WLAN_PMKID_LEN; i++)
2816 brcmf_dbg(CONN, "%02x\n", pmkids->pmkid[pmkid_len].PMKID[i]);
2817
2818 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
2819
2820 brcmf_dbg(TRACE, "Exit\n");
2821 return err;
2822}
2823
2824static s32
2825brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
2826 struct cfg80211_pmksa *pmksa)
2827{
2828 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2829 struct brcmf_if *ifp = netdev_priv(ndev);
2830 struct pmkid_list pmkid;
2831 s32 err = 0;
2832 int i, pmkid_len;
2833
2834 brcmf_dbg(TRACE, "Enter\n");
2835 if (!check_vif_up(ifp->vif))
2836 return -EIO;
2837
2838 memcpy(&pmkid.pmkid[0].BSSID, pmksa->bssid, ETH_ALEN);
2839 memcpy(&pmkid.pmkid[0].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
2840
2841 brcmf_dbg(CONN, "del_pmksa,IW_PMKSA_REMOVE - PMKID: %pM =\n",
2842 &pmkid.pmkid[0].BSSID);
2843 for (i = 0; i < WLAN_PMKID_LEN; i++)
2844 brcmf_dbg(CONN, "%02x\n", pmkid.pmkid[0].PMKID[i]);
2845
2846 pmkid_len = le32_to_cpu(cfg->pmk_list->pmkids.npmkid);
2847 for (i = 0; i < pmkid_len; i++)
2848 if (!memcmp
2849 (pmksa->bssid, &cfg->pmk_list->pmkids.pmkid[i].BSSID,
2850 ETH_ALEN))
2851 break;
2852
2853 if ((pmkid_len > 0)
2854 && (i < pmkid_len)) {
2855 memset(&cfg->pmk_list->pmkids.pmkid[i], 0,
2856 sizeof(struct pmkid));
2857 for (; i < (pmkid_len - 1); i++) {
2858 memcpy(&cfg->pmk_list->pmkids.pmkid[i].BSSID,
2859 &cfg->pmk_list->pmkids.pmkid[i + 1].BSSID,
2860 ETH_ALEN);
2861 memcpy(&cfg->pmk_list->pmkids.pmkid[i].PMKID,
2862 &cfg->pmk_list->pmkids.pmkid[i + 1].PMKID,
2863 WLAN_PMKID_LEN);
2864 }
2865 cfg->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1);
2866 } else
2867 err = -EINVAL;
2868
2869 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
2870
2871 brcmf_dbg(TRACE, "Exit\n");
2872 return err;
2873
2874}
2875
2876static s32
2877brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev)
2878{
2879 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2880 struct brcmf_if *ifp = netdev_priv(ndev);
2881 s32 err = 0;
2882
2883 brcmf_dbg(TRACE, "Enter\n");
2884 if (!check_vif_up(ifp->vif))
2885 return -EIO;
2886
2887 memset(cfg->pmk_list, 0, sizeof(*cfg->pmk_list));
2888 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
2889
2890 brcmf_dbg(TRACE, "Exit\n");
2891 return err;
2892
2893}
2894
2895/*
2896 * PFN result doesn't have all the info which are
2897 * required by the supplicant
2898 * (For e.g IEs) Do a target Escan so that sched scan results are reported
2899 * via wl_inform_single_bss in the required format. Escan does require the
2900 * scan request in the form of cfg80211_scan_request. For timebeing, create
2901 * cfg80211_scan_request one out of the received PNO event.
2902 */
2903static s32
2904brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
2905 const struct brcmf_event_msg *e, void *data)
2906{
2907 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
2908 struct brcmf_pno_net_info_le *netinfo, *netinfo_start;
2909 struct cfg80211_scan_request *request = NULL;
2910 struct cfg80211_ssid *ssid = NULL;
2911 struct ieee80211_channel *channel = NULL;
2912 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2913 int err = 0;
2914 int channel_req = 0;
2915 int band = 0;
2916 struct brcmf_pno_scanresults_le *pfn_result;
2917 u32 result_count;
2918 u32 status;
2919
2920 brcmf_dbg(SCAN, "Enter\n");
2921
2922 if (e->event_code == BRCMF_E_PFN_NET_LOST) {
2923 brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n");
2924 return 0;
2925 }
2926
2927 pfn_result = (struct brcmf_pno_scanresults_le *)data;
2928 result_count = le32_to_cpu(pfn_result->count);
2929 status = le32_to_cpu(pfn_result->status);
2930
2931 /*
2932 * PFN event is limited to fit 512 bytes so we may get
2933 * multiple NET_FOUND events. For now place a warning here.
2934 */
2935 WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE);
2936 brcmf_dbg(SCAN, "PFN NET FOUND event. count: %d\n", result_count);
2937 if (result_count > 0) {
2938 int i;
2939
2940 request = kzalloc(sizeof(*request), GFP_KERNEL);
2941 ssid = kcalloc(result_count, sizeof(*ssid), GFP_KERNEL);
2942 channel = kcalloc(result_count, sizeof(*channel), GFP_KERNEL);
2943 if (!request || !ssid || !channel) {
2944 err = -ENOMEM;
2945 goto out_err;
2946 }
2947
2948 request->wiphy = wiphy;
2949 data += sizeof(struct brcmf_pno_scanresults_le);
2950 netinfo_start = (struct brcmf_pno_net_info_le *)data;
2951
2952 for (i = 0; i < result_count; i++) {
2953 netinfo = &netinfo_start[i];
2954 if (!netinfo) {
2955 brcmf_err("Invalid netinfo ptr. index: %d\n",
2956 i);
2957 err = -EINVAL;
2958 goto out_err;
2959 }
2960
2961 brcmf_dbg(SCAN, "SSID:%s Channel:%d\n",
2962 netinfo->SSID, netinfo->channel);
2963 memcpy(ssid[i].ssid, netinfo->SSID, netinfo->SSID_len);
2964 ssid[i].ssid_len = netinfo->SSID_len;
2965 request->n_ssids++;
2966
2967 channel_req = netinfo->channel;
2968 if (channel_req <= CH_MAX_2G_CHANNEL)
2969 band = NL80211_BAND_2GHZ;
2970 else
2971 band = NL80211_BAND_5GHZ;
2972 channel[i].center_freq =
2973 ieee80211_channel_to_frequency(channel_req,
2974 band);
2975 channel[i].band = band;
2976 channel[i].flags |= IEEE80211_CHAN_NO_HT40;
2977 request->channels[i] = &channel[i];
2978 request->n_channels++;
2979 }
2980
2981 /* assign parsed ssid array */
2982 if (request->n_ssids)
2983 request->ssids = &ssid[0];
2984
2985 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
2986 /* Abort any on-going scan */
2987 brcmf_abort_scanning(cfg);
2988 }
2989
2990 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2991 err = brcmf_do_escan(cfg, wiphy, ifp, request);
2992 if (err) {
2993 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2994 goto out_err;
2995 }
2996 cfg->sched_escan = true;
2997 cfg->scan_request = request;
2998 } else {
2999 brcmf_err("FALSE PNO Event. (pfn_count == 0)\n");
3000 goto out_err;
3001 }
3002
3003 kfree(ssid);
3004 kfree(channel);
3005 kfree(request);
3006 return 0;
3007
3008out_err:
3009 kfree(ssid);
3010 kfree(channel);
3011 kfree(request);
3012 cfg80211_sched_scan_stopped(wiphy);
3013 return err;
3014}
3015
3016static int brcmf_dev_pno_clean(struct net_device *ndev)
3017{
3018 int ret;
3019
3020 /* Disable pfn */
3021 ret = brcmf_fil_iovar_int_set(netdev_priv(ndev), "pfn", 0);
3022 if (ret == 0) {
3023 /* clear pfn */
3024 ret = brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfnclear",
3025 NULL, 0);
3026 }
3027 if (ret < 0)
3028 brcmf_err("failed code %d\n", ret);
3029
3030 return ret;
3031}
3032
3033static int brcmf_dev_pno_config(struct net_device *ndev)
3034{
3035 struct brcmf_pno_param_le pfn_param;
3036
3037 memset(&pfn_param, 0, sizeof(pfn_param));
3038 pfn_param.version = cpu_to_le32(BRCMF_PNO_VERSION);
3039
3040 /* set extra pno params */
3041 pfn_param.flags = cpu_to_le16(1 << BRCMF_PNO_ENABLE_ADAPTSCAN_BIT);
3042 pfn_param.repeat = BRCMF_PNO_REPEAT;
3043 pfn_param.exp = BRCMF_PNO_FREQ_EXPO_MAX;
3044
3045 /* set up pno scan fr */
3046 pfn_param.scan_freq = cpu_to_le32(BRCMF_PNO_TIME);
3047
3048 return brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfn_set",
3049 &pfn_param, sizeof(pfn_param));
3050}
3051
3052static int
3053brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
3054 struct net_device *ndev,
3055 struct cfg80211_sched_scan_request *request)
3056{
3057 struct brcmf_if *ifp = netdev_priv(ndev);
3058 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
3059 struct brcmf_pno_net_param_le pfn;
3060 int i;
3061 int ret = 0;
3062
3063 brcmf_dbg(SCAN, "Enter n_match_sets:%d n_ssids:%d\n",
3064 request->n_match_sets, request->n_ssids);
3065 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3066 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
3067 return -EAGAIN;
3068 }
3069 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
3070 brcmf_err("Scanning suppressed: status (%lu)\n",
3071 cfg->scan_status);
3072 return -EAGAIN;
3073 }
3074
3075 if (!request->n_ssids || !request->n_match_sets) {
3076 brcmf_err("Invalid sched scan req!! n_ssids:%d\n",
3077 request->n_ssids);
3078 return -EINVAL;
3079 }
3080
3081 if (request->n_ssids > 0) {
3082 for (i = 0; i < request->n_ssids; i++) {
3083 /* Active scan req for ssids */
3084 brcmf_dbg(SCAN, ">>> Active scan req for ssid (%s)\n",
3085 request->ssids[i].ssid);
3086
3087 /*
3088 * match_set ssids is a supert set of n_ssid list,
3089 * so we need not add these set seperately.
3090 */
3091 }
3092 }
3093
3094 if (request->n_match_sets > 0) {
3095 /* clean up everything */
3096 ret = brcmf_dev_pno_clean(ndev);
3097 if (ret < 0) {
3098 brcmf_err("failed error=%d\n", ret);
3099 return ret;
3100 }
3101
3102 /* configure pno */
3103 ret = brcmf_dev_pno_config(ndev);
3104 if (ret < 0) {
3105 brcmf_err("PNO setup failed!! ret=%d\n", ret);
3106 return -EINVAL;
3107 }
3108
3109 /* configure each match set */
3110 for (i = 0; i < request->n_match_sets; i++) {
3111 struct cfg80211_ssid *ssid;
3112 u32 ssid_len;
3113
3114 ssid = &request->match_sets[i].ssid;
3115 ssid_len = ssid->ssid_len;
3116
3117 if (!ssid_len) {
3118 brcmf_err("skip broadcast ssid\n");
3119 continue;
3120 }
3121 pfn.auth = cpu_to_le32(WLAN_AUTH_OPEN);
3122 pfn.wpa_auth = cpu_to_le32(BRCMF_PNO_WPA_AUTH_ANY);
3123 pfn.wsec = cpu_to_le32(0);
3124 pfn.infra = cpu_to_le32(1);
3125 pfn.flags = cpu_to_le32(1 << BRCMF_PNO_HIDDEN_BIT);
3126 pfn.ssid.SSID_len = cpu_to_le32(ssid_len);
3127 memcpy(pfn.ssid.SSID, ssid->ssid, ssid_len);
3128 ret = brcmf_fil_iovar_data_set(ifp, "pfn_add", &pfn,
3129 sizeof(pfn));
3130 brcmf_dbg(SCAN, ">>> PNO filter %s for ssid (%s)\n",
3131 ret == 0 ? "set" : "failed", ssid->ssid);
3132 }
3133 /* Enable the PNO */
3134 if (brcmf_fil_iovar_int_set(ifp, "pfn", 1) < 0) {
3135 brcmf_err("PNO enable failed!! ret=%d\n", ret);
3136 return -EINVAL;
3137 }
3138 } else {
3139 return -EINVAL;
3140 }
3141
3142 return 0;
3143}
3144
3145static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy,
3146 struct net_device *ndev)
3147{
3148 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3149
3150 brcmf_dbg(SCAN, "enter\n");
3151 brcmf_dev_pno_clean(ndev);
3152 if (cfg->sched_escan)
3153 brcmf_notify_escan_complete(cfg, netdev_priv(ndev), true, true);
3154 return 0;
3155}
3156
3157#ifdef CONFIG_NL80211_TESTMODE
3158static int brcmf_cfg80211_testmode(struct wiphy *wiphy,
3159 struct wireless_dev *wdev,
3160 void *data, int len)
3161{
3162 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3163 struct net_device *ndev = cfg_to_ndev(cfg);
3164 struct brcmf_dcmd *dcmd = data;
3165 struct sk_buff *reply;
3166 int ret;
3167
3168 brcmf_dbg(TRACE, "cmd %x set %d buf %p len %d\n", dcmd->cmd, dcmd->set,
3169 dcmd->buf, dcmd->len);
3170
3171 if (dcmd->set)
3172 ret = brcmf_fil_cmd_data_set(netdev_priv(ndev), dcmd->cmd,
3173 dcmd->buf, dcmd->len);
3174 else
3175 ret = brcmf_fil_cmd_data_get(netdev_priv(ndev), dcmd->cmd,
3176 dcmd->buf, dcmd->len);
3177 if (ret == 0) {
3178 reply = cfg80211_testmode_alloc_reply_skb(wiphy, sizeof(*dcmd));
3179 nla_put(reply, NL80211_ATTR_TESTDATA, sizeof(*dcmd), dcmd);
3180 ret = cfg80211_testmode_reply(reply);
3181 }
3182 return ret;
3183}
3184#endif
3185
3186static s32 brcmf_configure_opensecurity(struct brcmf_if *ifp)
3187{
3188 s32 err;
3189
3190 /* set auth */
3191 err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0);
3192 if (err < 0) {
3193 brcmf_err("auth error %d\n", err);
3194 return err;
3195 }
3196 /* set wsec */
3197 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0);
3198 if (err < 0) {
3199 brcmf_err("wsec error %d\n", err);
3200 return err;
3201 }
3202 /* set upper-layer auth */
3203 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", WPA_AUTH_NONE);
3204 if (err < 0) {
3205 brcmf_err("wpa_auth error %d\n", err);
3206 return err;
3207 }
3208
3209 return 0;
3210}
3211
3212static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie)
3213{
3214 if (is_rsn_ie)
3215 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0);
3216
3217 return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0);
3218}
3219
3220static s32
3221brcmf_configure_wpaie(struct net_device *ndev, struct brcmf_vs_tlv *wpa_ie,
3222 bool is_rsn_ie)
3223{
3224 struct brcmf_if *ifp = netdev_priv(ndev);
3225 u32 auth = 0; /* d11 open authentication */
3226 u16 count;
3227 s32 err = 0;
3228 s32 len = 0;
3229 u32 i;
3230 u32 wsec;
3231 u32 pval = 0;
3232 u32 gval = 0;
3233 u32 wpa_auth = 0;
3234 u32 offset;
3235 u8 *data;
3236 u16 rsn_cap;
3237 u32 wme_bss_disable;
3238
3239 brcmf_dbg(TRACE, "Enter\n");
3240 if (wpa_ie == NULL)
3241 goto exit;
3242
3243 len = wpa_ie->len + TLV_HDR_LEN;
3244 data = (u8 *)wpa_ie;
3245 offset = TLV_HDR_LEN;
3246 if (!is_rsn_ie)
3247 offset += VS_IE_FIXED_HDR_LEN;
3248 else
3249 offset += WPA_IE_VERSION_LEN;
3250
3251 /* check for multicast cipher suite */
3252 if (offset + WPA_IE_MIN_OUI_LEN > len) {
3253 err = -EINVAL;
3254 brcmf_err("no multicast cipher suite\n");
3255 goto exit;
3256 }
3257
3258 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3259 err = -EINVAL;
3260 brcmf_err("ivalid OUI\n");
3261 goto exit;
3262 }
3263 offset += TLV_OUI_LEN;
3264
3265 /* pick up multicast cipher */
3266 switch (data[offset]) {
3267 case WPA_CIPHER_NONE:
3268 gval = 0;
3269 break;
3270 case WPA_CIPHER_WEP_40:
3271 case WPA_CIPHER_WEP_104:
3272 gval = WEP_ENABLED;
3273 break;
3274 case WPA_CIPHER_TKIP:
3275 gval = TKIP_ENABLED;
3276 break;
3277 case WPA_CIPHER_AES_CCM:
3278 gval = AES_ENABLED;
3279 break;
3280 default:
3281 err = -EINVAL;
3282 brcmf_err("Invalid multi cast cipher info\n");
3283 goto exit;
3284 }
3285
3286 offset++;
3287 /* walk thru unicast cipher list and pick up what we recognize */
3288 count = data[offset] + (data[offset + 1] << 8);
3289 offset += WPA_IE_SUITE_COUNT_LEN;
3290 /* Check for unicast suite(s) */
3291 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3292 err = -EINVAL;
3293 brcmf_err("no unicast cipher suite\n");
3294 goto exit;
3295 }
3296 for (i = 0; i < count; i++) {
3297 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3298 err = -EINVAL;
3299 brcmf_err("ivalid OUI\n");
3300 goto exit;
3301 }
3302 offset += TLV_OUI_LEN;
3303 switch (data[offset]) {
3304 case WPA_CIPHER_NONE:
3305 break;
3306 case WPA_CIPHER_WEP_40:
3307 case WPA_CIPHER_WEP_104:
3308 pval |= WEP_ENABLED;
3309 break;
3310 case WPA_CIPHER_TKIP:
3311 pval |= TKIP_ENABLED;
3312 break;
3313 case WPA_CIPHER_AES_CCM:
3314 pval |= AES_ENABLED;
3315 break;
3316 default:
3317 brcmf_err("Ivalid unicast security info\n");
3318 }
3319 offset++;
3320 }
3321 /* walk thru auth management suite list and pick up what we recognize */
3322 count = data[offset] + (data[offset + 1] << 8);
3323 offset += WPA_IE_SUITE_COUNT_LEN;
3324 /* Check for auth key management suite(s) */
3325 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3326 err = -EINVAL;
3327 brcmf_err("no auth key mgmt suite\n");
3328 goto exit;
3329 }
3330 for (i = 0; i < count; i++) {
3331 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3332 err = -EINVAL;
3333 brcmf_err("ivalid OUI\n");
3334 goto exit;
3335 }
3336 offset += TLV_OUI_LEN;
3337 switch (data[offset]) {
3338 case RSN_AKM_NONE:
3339 brcmf_dbg(TRACE, "RSN_AKM_NONE\n");
3340 wpa_auth |= WPA_AUTH_NONE;
3341 break;
3342 case RSN_AKM_UNSPECIFIED:
3343 brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n");
3344 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) :
3345 (wpa_auth |= WPA_AUTH_UNSPECIFIED);
3346 break;
3347 case RSN_AKM_PSK:
3348 brcmf_dbg(TRACE, "RSN_AKM_PSK\n");
3349 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) :
3350 (wpa_auth |= WPA_AUTH_PSK);
3351 break;
3352 default:
3353 brcmf_err("Ivalid key mgmt info\n");
3354 }
3355 offset++;
3356 }
3357
3358 if (is_rsn_ie) {
3359 wme_bss_disable = 1;
3360 if ((offset + RSN_CAP_LEN) <= len) {
3361 rsn_cap = data[offset] + (data[offset + 1] << 8);
3362 if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK)
3363 wme_bss_disable = 0;
3364 }
3365 /* set wme_bss_disable to sync RSN Capabilities */
3366 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable",
3367 wme_bss_disable);
3368 if (err < 0) {
3369 brcmf_err("wme_bss_disable error %d\n", err);
3370 goto exit;
3371 }
3372 }
3373 /* FOR WPS , set SES_OW_ENABLED */
3374 wsec = (pval | gval | SES_OW_ENABLED);
3375
3376 /* set auth */
3377 err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth);
3378 if (err < 0) {
3379 brcmf_err("auth error %d\n", err);
3380 goto exit;
3381 }
3382 /* set wsec */
3383 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
3384 if (err < 0) {
3385 brcmf_err("wsec error %d\n", err);
3386 goto exit;
3387 }
3388 /* set upper-layer auth */
3389 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth);
3390 if (err < 0) {
3391 brcmf_err("wpa_auth error %d\n", err);
3392 goto exit;
3393 }
3394
3395exit:
3396 return err;
3397}
3398
3399static s32
3400brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len,
3401 struct parsed_vndr_ies *vndr_ies)
3402{
3403 s32 err = 0;
3404 struct brcmf_vs_tlv *vndrie;
3405 struct brcmf_tlv *ie;
3406 struct parsed_vndr_ie_info *parsed_info;
3407 s32 remaining_len;
3408
3409 remaining_len = (s32)vndr_ie_len;
3410 memset(vndr_ies, 0, sizeof(*vndr_ies));
3411
3412 ie = (struct brcmf_tlv *)vndr_ie_buf;
3413 while (ie) {
3414 if (ie->id != WLAN_EID_VENDOR_SPECIFIC)
3415 goto next;
3416 vndrie = (struct brcmf_vs_tlv *)ie;
3417 /* len should be bigger than OUI length + one */
3418 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) {
3419 brcmf_err("invalid vndr ie. length is too small %d\n",
3420 vndrie->len);
3421 goto next;
3422 }
3423 /* if wpa or wme ie, do not add ie */
3424 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) &&
3425 ((vndrie->oui_type == WPA_OUI_TYPE) ||
3426 (vndrie->oui_type == WME_OUI_TYPE))) {
3427 brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n");
3428 goto next;
3429 }
3430
3431 parsed_info = &vndr_ies->ie_info[vndr_ies->count];
3432
3433 /* save vndr ie information */
3434 parsed_info->ie_ptr = (char *)vndrie;
3435 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN;
3436 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie));
3437
3438 vndr_ies->count++;
3439
3440 brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n",
3441 parsed_info->vndrie.oui[0],
3442 parsed_info->vndrie.oui[1],
3443 parsed_info->vndrie.oui[2],
3444 parsed_info->vndrie.oui_type);
3445
3446 if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT)
3447 break;
3448next:
3449 remaining_len -= (ie->len + TLV_HDR_LEN);
3450 if (remaining_len <= TLV_HDR_LEN)
3451 ie = NULL;
3452 else
3453 ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len +
3454 TLV_HDR_LEN);
3455 }
3456 return err;
3457}
3458
3459static u32
3460brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd)
3461{
3462
3463 __le32 iecount_le;
3464 __le32 pktflag_le;
3465
3466 strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1);
3467 iebuf[VNDR_IE_CMD_LEN - 1] = '\0';
3468
3469 iecount_le = cpu_to_le32(1);
3470 memcpy(&iebuf[VNDR_IE_COUNT_OFFSET], &iecount_le, sizeof(iecount_le));
3471
3472 pktflag_le = cpu_to_le32(pktflag);
3473 memcpy(&iebuf[VNDR_IE_PKTFLAG_OFFSET], &pktflag_le, sizeof(pktflag_le));
3474
3475 memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len);
3476
3477 return ie_len + VNDR_IE_HDR_SIZE;
3478}
3479
3480s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
3481 const u8 *vndr_ie_buf, u32 vndr_ie_len)
3482{
3483 struct brcmf_if *ifp;
3484 struct vif_saved_ie *saved_ie;
3485 s32 err = 0;
3486 u8 *iovar_ie_buf;
3487 u8 *curr_ie_buf;
3488 u8 *mgmt_ie_buf = NULL;
3489 int mgmt_ie_buf_len;
3490 u32 *mgmt_ie_len;
3491 u32 del_add_ie_buf_len = 0;
3492 u32 total_ie_buf_len = 0;
3493 u32 parsed_ie_buf_len = 0;
3494 struct parsed_vndr_ies old_vndr_ies;
3495 struct parsed_vndr_ies new_vndr_ies;
3496 struct parsed_vndr_ie_info *vndrie_info;
3497 s32 i;
3498 u8 *ptr;
3499 int remained_buf_len;
3500
3501 if (!vif)
3502 return -ENODEV;
3503 ifp = vif->ifp;
3504 saved_ie = &vif->saved_ie;
3505
3506 brcmf_dbg(TRACE, "bssidx %d, pktflag : 0x%02X\n", ifp->bssidx, pktflag);
3507 iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
3508 if (!iovar_ie_buf)
3509 return -ENOMEM;
3510 curr_ie_buf = iovar_ie_buf;
3511 switch (pktflag) {
3512 case BRCMF_VNDR_IE_PRBREQ_FLAG:
3513 mgmt_ie_buf = saved_ie->probe_req_ie;
3514 mgmt_ie_len = &saved_ie->probe_req_ie_len;
3515 mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie);
3516 break;
3517 case BRCMF_VNDR_IE_PRBRSP_FLAG:
3518 mgmt_ie_buf = saved_ie->probe_res_ie;
3519 mgmt_ie_len = &saved_ie->probe_res_ie_len;
3520 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie);
3521 break;
3522 case BRCMF_VNDR_IE_BEACON_FLAG:
3523 mgmt_ie_buf = saved_ie->beacon_ie;
3524 mgmt_ie_len = &saved_ie->beacon_ie_len;
3525 mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie);
3526 break;
3527 case BRCMF_VNDR_IE_ASSOCREQ_FLAG:
3528 mgmt_ie_buf = saved_ie->assoc_req_ie;
3529 mgmt_ie_len = &saved_ie->assoc_req_ie_len;
3530 mgmt_ie_buf_len = sizeof(saved_ie->assoc_req_ie);
3531 break;
3532 default:
3533 err = -EPERM;
3534 brcmf_err("not suitable type\n");
3535 goto exit;
3536 }
3537
3538 if (vndr_ie_len > mgmt_ie_buf_len) {
3539 err = -ENOMEM;
3540 brcmf_err("extra IE size too big\n");
3541 goto exit;
3542 }
3543
3544 /* parse and save new vndr_ie in curr_ie_buff before comparing it */
3545 if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) {
3546 ptr = curr_ie_buf;
3547 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies);
3548 for (i = 0; i < new_vndr_ies.count; i++) {
3549 vndrie_info = &new_vndr_ies.ie_info[i];
3550 memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr,
3551 vndrie_info->ie_len);
3552 parsed_ie_buf_len += vndrie_info->ie_len;
3553 }
3554 }
3555
3556 if (mgmt_ie_buf && *mgmt_ie_len) {
3557 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) &&
3558 (memcmp(mgmt_ie_buf, curr_ie_buf,
3559 parsed_ie_buf_len) == 0)) {
3560 brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n");
3561 goto exit;
3562 }
3563
3564 /* parse old vndr_ie */
3565 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies);
3566
3567 /* make a command to delete old ie */
3568 for (i = 0; i < old_vndr_ies.count; i++) {
3569 vndrie_info = &old_vndr_ies.ie_info[i];
3570
3571 brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n",
3572 vndrie_info->vndrie.id,
3573 vndrie_info->vndrie.len,
3574 vndrie_info->vndrie.oui[0],
3575 vndrie_info->vndrie.oui[1],
3576 vndrie_info->vndrie.oui[2]);
3577
3578 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3579 vndrie_info->ie_ptr,
3580 vndrie_info->ie_len,
3581 "del");
3582 curr_ie_buf += del_add_ie_buf_len;
3583 total_ie_buf_len += del_add_ie_buf_len;
3584 }
3585 }
3586
3587 *mgmt_ie_len = 0;
3588 /* Add if there is any extra IE */
3589 if (mgmt_ie_buf && parsed_ie_buf_len) {
3590 ptr = mgmt_ie_buf;
3591
3592 remained_buf_len = mgmt_ie_buf_len;
3593
3594 /* make a command to add new ie */
3595 for (i = 0; i < new_vndr_ies.count; i++) {
3596 vndrie_info = &new_vndr_ies.ie_info[i];
3597
3598 /* verify remained buf size before copy data */
3599 if (remained_buf_len < (vndrie_info->vndrie.len +
3600 VNDR_IE_VSIE_OFFSET)) {
3601 brcmf_err("no space in mgmt_ie_buf: len left %d",
3602 remained_buf_len);
3603 break;
3604 }
3605 remained_buf_len -= (vndrie_info->ie_len +
3606 VNDR_IE_VSIE_OFFSET);
3607
3608 brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n",
3609 vndrie_info->vndrie.id,
3610 vndrie_info->vndrie.len,
3611 vndrie_info->vndrie.oui[0],
3612 vndrie_info->vndrie.oui[1],
3613 vndrie_info->vndrie.oui[2]);
3614
3615 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3616 vndrie_info->ie_ptr,
3617 vndrie_info->ie_len,
3618 "add");
3619
3620 /* save the parsed IE in wl struct */
3621 memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr,
3622 vndrie_info->ie_len);
3623 *mgmt_ie_len += vndrie_info->ie_len;
3624
3625 curr_ie_buf += del_add_ie_buf_len;
3626 total_ie_buf_len += del_add_ie_buf_len;
3627 }
3628 }
3629 if (total_ie_buf_len) {
3630 err = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf,
3631 total_ie_buf_len);
3632 if (err)
3633 brcmf_err("vndr ie set error : %d\n", err);
3634 }
3635
3636exit:
3637 kfree(iovar_ie_buf);
3638 return err;
3639}
3640
3641s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif)
3642{
3643 s32 pktflags[] = {
3644 BRCMF_VNDR_IE_PRBREQ_FLAG,
3645 BRCMF_VNDR_IE_PRBRSP_FLAG,
3646 BRCMF_VNDR_IE_BEACON_FLAG
3647 };
3648 int i;
3649
3650 for (i = 0; i < ARRAY_SIZE(pktflags); i++)
3651 brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0);
3652
3653 memset(&vif->saved_ie, 0, sizeof(vif->saved_ie));
3654 return 0;
3655}
3656
3657static s32
3658brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif,
3659 struct cfg80211_beacon_data *beacon)
3660{
3661 s32 err;
3662
3663 /* Set Beacon IEs to FW */
3664 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG,
3665 beacon->tail, beacon->tail_len);
3666 if (err) {
3667 brcmf_err("Set Beacon IE Failed\n");
3668 return err;
3669 }
3670 brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n");
3671
3672 /* Set Probe Response IEs to FW */
3673 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG,
3674 beacon->proberesp_ies,
3675 beacon->proberesp_ies_len);
3676 if (err)
3677 brcmf_err("Set Probe Resp IE Failed\n");
3678 else
3679 brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n");
3680
3681 return err;
3682}
3683
3684static s32
3685brcmf_cfg80211_set_channel(struct brcmf_cfg80211_info *cfg,
3686 struct brcmf_if *ifp,
3687 struct ieee80211_channel *channel)
3688{
3689 u16 chanspec;
3690 s32 err;
3691
3692 brcmf_dbg(TRACE, "band=%d, center_freq=%d\n", channel->band,
3693 channel->center_freq);
3694
3695 chanspec = channel_to_chanspec(&cfg->d11inf, channel);
3696 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
3697
3698 return err;
3699}
3700
3701static s32
3702brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
3703 struct cfg80211_ap_settings *settings)
3704{
3705 s32 ie_offset;
3706 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3707 struct brcmf_if *ifp = netdev_priv(ndev);
3708 struct brcmf_tlv *ssid_ie;
3709 struct brcmf_ssid_le ssid_le;
3710 s32 err = -EPERM;
3711 struct brcmf_tlv *rsn_ie;
3712 struct brcmf_vs_tlv *wpa_ie;
3713 struct brcmf_join_params join_params;
3714 enum nl80211_iftype dev_role;
3715 struct brcmf_fil_bss_enable_le bss_enable;
3716
3717 brcmf_dbg(TRACE, "channel_type=%d, beacon_interval=%d, dtim_period=%d,\n",
3718 cfg80211_get_chandef_type(&settings->chandef),
3719 settings->beacon_interval,
3720 settings->dtim_period);
3721 brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n",
3722 settings->ssid, settings->ssid_len, settings->auth_type,
3723 settings->inactivity_timeout);
3724
3725 dev_role = ifp->vif->wdev.iftype;
3726
3727 memset(&ssid_le, 0, sizeof(ssid_le));
3728 if (settings->ssid == NULL || settings->ssid_len == 0) {
3729 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN;
3730 ssid_ie = brcmf_parse_tlvs(
3731 (u8 *)&settings->beacon.head[ie_offset],
3732 settings->beacon.head_len - ie_offset,
3733 WLAN_EID_SSID);
3734 if (!ssid_ie)
3735 return -EINVAL;
3736
3737 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len);
3738 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len);
3739 brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID);
3740 } else {
3741 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len);
3742 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
3743 }
3744
3745 brcmf_set_mpc(ifp, 0);
3746 brcmf_configure_arp_offload(ifp, false);
3747
3748 /* find the RSN_IE */
3749 rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
3750 settings->beacon.tail_len, WLAN_EID_RSN);
3751
3752 /* find the WPA_IE */
3753 wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail,
3754 settings->beacon.tail_len);
3755
3756 if ((wpa_ie != NULL || rsn_ie != NULL)) {
3757 brcmf_dbg(TRACE, "WPA(2) IE is found\n");
3758 if (wpa_ie != NULL) {
3759 /* WPA IE */
3760 err = brcmf_configure_wpaie(ndev, wpa_ie, false);
3761 if (err < 0)
3762 goto exit;
3763 } else {
3764 /* RSN IE */
3765 err = brcmf_configure_wpaie(ndev,
3766 (struct brcmf_vs_tlv *)rsn_ie, true);
3767 if (err < 0)
3768 goto exit;
3769 }
3770 } else {
3771 brcmf_dbg(TRACE, "No WPA(2) IEs found\n");
3772 brcmf_configure_opensecurity(ifp);
3773 }
3774
3775 brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon);
3776
3777 err = brcmf_cfg80211_set_channel(cfg, ifp, settings->chandef.chan);
3778 if (err < 0) {
3779 brcmf_err("Set Channel failed, %d\n", err);
3780 goto exit;
3781 }
3782
3783 if (settings->beacon_interval) {
3784 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
3785 settings->beacon_interval);
3786 if (err < 0) {
3787 brcmf_err("Beacon Interval Set Error, %d\n", err);
3788 goto exit;
3789 }
3790 }
3791 if (settings->dtim_period) {
3792 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD,
3793 settings->dtim_period);
3794 if (err < 0) {
3795 brcmf_err("DTIM Interval Set Error, %d\n", err);
3796 goto exit;
3797 }
3798 }
3799
3800 if (dev_role == NL80211_IFTYPE_AP) {
3801 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
3802 if (err < 0) {
3803 brcmf_err("BRCMF_C_DOWN error %d\n", err);
3804 goto exit;
3805 }
3806 brcmf_fil_iovar_int_set(ifp, "apsta", 0);
3807 }
3808
3809 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
3810 if (err < 0) {
3811 brcmf_err("SET INFRA error %d\n", err);
3812 goto exit;
3813 }
3814 if (dev_role == NL80211_IFTYPE_AP) {
3815 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
3816 if (err < 0) {
3817 brcmf_err("setting AP mode failed %d\n", err);
3818 goto exit;
3819 }
3820 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
3821 if (err < 0) {
3822 brcmf_err("BRCMF_C_UP error (%d)\n", err);
3823 goto exit;
3824 }
3825
3826 memset(&join_params, 0, sizeof(join_params));
3827 /* join parameters starts with ssid */
3828 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
3829 /* create softap */
3830 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
3831 &join_params, sizeof(join_params));
3832 if (err < 0) {
3833 brcmf_err("SET SSID error (%d)\n", err);
3834 goto exit;
3835 }
3836 brcmf_dbg(TRACE, "AP mode configuration complete\n");
3837 } else {
3838 err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le,
3839 sizeof(ssid_le));
3840 if (err < 0) {
3841 brcmf_err("setting ssid failed %d\n", err);
3842 goto exit;
3843 }
3844 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
3845 bss_enable.enable = cpu_to_le32(1);
3846 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
3847 sizeof(bss_enable));
3848 if (err < 0) {
3849 brcmf_err("bss_enable config failed %d\n", err);
3850 goto exit;
3851 }
3852
3853 brcmf_dbg(TRACE, "GO mode configuration complete\n");
3854 }
3855 clear_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
3856 set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
3857
3858exit:
3859 if (err) {
3860 brcmf_set_mpc(ifp, 1);
3861 brcmf_configure_arp_offload(ifp, true);
3862 }
3863 return err;
3864}
3865
3866static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
3867{
3868 struct brcmf_if *ifp = netdev_priv(ndev);
3869 s32 err;
3870 struct brcmf_fil_bss_enable_le bss_enable;
3871 struct brcmf_join_params join_params;
3872
3873 brcmf_dbg(TRACE, "Enter\n");
3874
3875 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_AP) {
3876 /* Due to most likely deauths outstanding we sleep */
3877 /* first to make sure they get processed by fw. */
3878 msleep(400);
3879
3880 memset(&join_params, 0, sizeof(join_params));
3881 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
3882 &join_params, sizeof(join_params));
3883 if (err < 0)
3884 brcmf_err("SET SSID error (%d)\n", err);
3885 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
3886 if (err < 0)
3887 brcmf_err("BRCMF_C_UP error %d\n", err);
3888 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0);
3889 if (err < 0)
3890 brcmf_err("setting AP mode failed %d\n", err);
3891 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0);
3892 if (err < 0)
3893 brcmf_err("setting INFRA mode failed %d\n", err);
3894 } else {
3895 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
3896 bss_enable.enable = cpu_to_le32(0);
3897 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
3898 sizeof(bss_enable));
3899 if (err < 0)
3900 brcmf_err("bss_enable config failed %d\n", err);
3901 }
3902 brcmf_set_mpc(ifp, 1);
3903 brcmf_configure_arp_offload(ifp, true);
3904 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
3905 clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
3906
3907 return err;
3908}
3909
3910static s32
3911brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev,
3912 struct cfg80211_beacon_data *info)
3913{
3914 struct brcmf_if *ifp = netdev_priv(ndev);
3915 s32 err;
3916
3917 brcmf_dbg(TRACE, "Enter\n");
3918
3919 err = brcmf_config_ap_mgmt_ie(ifp->vif, info);
3920
3921 return err;
3922}
3923
3924static int
3925brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev,
3926 u8 *mac)
3927{
3928 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3929 struct brcmf_scb_val_le scbval;
3930 struct brcmf_if *ifp = netdev_priv(ndev);
3931 s32 err;
3932
3933 if (!mac)
3934 return -EFAULT;
3935
3936 brcmf_dbg(TRACE, "Enter %pM\n", mac);
3937
3938 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
3939 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
3940 if (!check_vif_up(ifp->vif))
3941 return -EIO;
3942
3943 memcpy(&scbval.ea, mac, ETH_ALEN);
3944 scbval.val = cpu_to_le32(WLAN_REASON_DEAUTH_LEAVING);
3945 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON,
3946 &scbval, sizeof(scbval));
3947 if (err)
3948 brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err);
3949
3950 brcmf_dbg(TRACE, "Exit\n");
3951 return err;
3952}
3953
3954
3955static void
3956brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
3957 struct wireless_dev *wdev,
3958 u16 frame_type, bool reg)
3959{
3960 struct brcmf_cfg80211_vif *vif;
3961 u16 mgmt_type;
3962
3963 brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg);
3964
3965 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
3966 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
3967 if (reg)
3968 vif->mgmt_rx_reg |= BIT(mgmt_type);
3969 else
3970 vif->mgmt_rx_reg &= ~BIT(mgmt_type);
3971}
3972
3973
3974static int
3975brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3976 struct ieee80211_channel *chan, bool offchan,
3977 unsigned int wait, const u8 *buf, size_t len,
3978 bool no_cck, bool dont_wait_for_ack, u64 *cookie)
3979{
3980 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3981 const struct ieee80211_mgmt *mgmt;
3982 struct brcmf_cfg80211_vif *vif;
3983 s32 err = 0;
3984 s32 ie_offset;
3985 s32 ie_len;
3986 struct brcmf_fil_action_frame_le *action_frame;
3987 struct brcmf_fil_af_params_le *af_params;
3988 bool ack;
3989 s32 chan_nr;
3990 u32 freq;
3991
3992 brcmf_dbg(TRACE, "Enter\n");
3993
3994 *cookie = 0;
3995
3996 mgmt = (const struct ieee80211_mgmt *)buf;
3997
3998 if (!ieee80211_is_mgmt(mgmt->frame_control)) {
3999 brcmf_err("Driver only allows MGMT packet type\n");
4000 return -EPERM;
4001 }
4002
4003 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4004
4005 if (ieee80211_is_probe_resp(mgmt->frame_control)) {
4006 /* Right now the only reason to get a probe response */
4007 /* is for p2p listen response or for p2p GO from */
4008 /* wpa_supplicant. Unfortunately the probe is send */
4009 /* on primary ndev, while dongle wants it on the p2p */
4010 /* vif. Since this is only reason for a probe */
4011 /* response to be sent, the vif is taken from cfg. */
4012 /* If ever desired to send proberesp for non p2p */
4013 /* response then data should be checked for */
4014 /* "DIRECT-". Note in future supplicant will take */
4015 /* dedicated p2p wdev to do this and then this 'hack'*/
4016 /* is not needed anymore. */
4017 ie_offset = DOT11_MGMT_HDR_LEN +
4018 DOT11_BCN_PRB_FIXED_LEN;
4019 ie_len = len - ie_offset;
4020 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif)
4021 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4022 err = brcmf_vif_set_mgmt_ie(vif,
4023 BRCMF_VNDR_IE_PRBRSP_FLAG,
4024 &buf[ie_offset],
4025 ie_len);
4026 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
4027 GFP_KERNEL);
4028 } else if (ieee80211_is_action(mgmt->frame_control)) {
4029 af_params = kzalloc(sizeof(*af_params), GFP_KERNEL);
4030 if (af_params == NULL) {
4031 brcmf_err("unable to allocate frame\n");
4032 err = -ENOMEM;
4033 goto exit;
4034 }
4035 action_frame = &af_params->action_frame;
4036 /* Add the packet Id */
4037 action_frame->packet_id = cpu_to_le32(*cookie);
4038 /* Add BSSID */
4039 memcpy(&action_frame->da[0], &mgmt->da[0], ETH_ALEN);
4040 memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN);
4041 /* Add the length exepted for 802.11 header */
4042 action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN);
4043 /* Add the channel. Use the one specified as parameter if any or
4044 * the current one (got from the firmware) otherwise
4045 */
4046 if (chan)
4047 freq = chan->center_freq;
4048 else
4049 brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL,
4050 &freq);
4051 chan_nr = ieee80211_frequency_to_channel(freq);
4052 af_params->channel = cpu_to_le32(chan_nr);
4053
4054 memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN],
4055 le16_to_cpu(action_frame->len));
4056
4057 brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n",
4058 *cookie, le16_to_cpu(action_frame->len), freq);
4059
4060 ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg),
4061 af_params);
4062
4063 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack,
4064 GFP_KERNEL);
4065 kfree(af_params);
4066 } else {
4067 brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control);
4068 brcmf_dbg_hex_dump(true, buf, len, "payload, len=%Zu\n", len);
4069 }
4070
4071exit:
4072 return err;
4073}
4074
4075
4076static int
4077brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
4078 struct wireless_dev *wdev,
4079 u64 cookie)
4080{
4081 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4082 struct brcmf_cfg80211_vif *vif;
4083 int err = 0;
4084
4085 brcmf_dbg(TRACE, "Enter p2p listen cancel\n");
4086
4087 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4088 if (vif == NULL) {
4089 brcmf_err("No p2p device available for probe response\n");
4090 err = -ENODEV;
4091 goto exit;
4092 }
4093 brcmf_p2p_cancel_remain_on_channel(vif->ifp);
4094exit:
4095 return err;
4096}
4097
4098static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy,
4099 struct wireless_dev *wdev,
4100 enum nl80211_crit_proto_id proto,
4101 u16 duration)
4102{
4103 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4104 struct brcmf_cfg80211_vif *vif;
4105
4106 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4107
4108 /* only DHCP support for now */
4109 if (proto != NL80211_CRIT_PROTO_DHCP)
4110 return -EINVAL;
4111
4112 /* suppress and abort scanning */
4113 set_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4114 brcmf_abort_scanning(cfg);
4115
4116 return brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_DISABLED, duration);
4117}
4118
4119static void brcmf_cfg80211_crit_proto_stop(struct wiphy *wiphy,
4120 struct wireless_dev *wdev)
4121{
4122 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4123 struct brcmf_cfg80211_vif *vif;
4124
4125 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4126
4127 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
4128 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4129}
4130
4131static int brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper)
4132{
4133 int ret;
4134
4135 switch (oper) {
4136 case NL80211_TDLS_DISCOVERY_REQ:
4137 ret = BRCMF_TDLS_MANUAL_EP_DISCOVERY;
4138 break;
4139 case NL80211_TDLS_SETUP:
4140 ret = BRCMF_TDLS_MANUAL_EP_CREATE;
4141 break;
4142 case NL80211_TDLS_TEARDOWN:
4143 ret = BRCMF_TDLS_MANUAL_EP_DELETE;
4144 break;
4145 default:
4146 brcmf_err("unsupported operation: %d\n", oper);
4147 ret = -EOPNOTSUPP;
4148 }
4149 return ret;
4150}
4151
4152static int brcmf_cfg80211_tdls_oper(struct wiphy *wiphy,
4153 struct net_device *ndev, u8 *peer,
4154 enum nl80211_tdls_operation oper)
4155{
4156 struct brcmf_if *ifp;
4157 struct brcmf_tdls_iovar_le info;
4158 int ret = 0;
4159
4160 ret = brcmf_convert_nl80211_tdls_oper(oper);
4161 if (ret < 0)
4162 return ret;
4163
4164 ifp = netdev_priv(ndev);
4165 memset(&info, 0, sizeof(info));
4166 info.mode = (u8)ret;
4167 if (peer)
4168 memcpy(info.ea, peer, ETH_ALEN);
4169
4170 ret = brcmf_fil_iovar_data_set(ifp, "tdls_endpoint",
4171 &info, sizeof(info));
4172 if (ret < 0)
4173 brcmf_err("tdls_endpoint iovar failed: ret=%d\n", ret);
4174
4175 return ret;
4176}
4177
4178static struct cfg80211_ops wl_cfg80211_ops = {
4179 .add_virtual_intf = brcmf_cfg80211_add_iface,
4180 .del_virtual_intf = brcmf_cfg80211_del_iface,
4181 .change_virtual_intf = brcmf_cfg80211_change_iface,
4182 .scan = brcmf_cfg80211_scan,
4183 .set_wiphy_params = brcmf_cfg80211_set_wiphy_params,
4184 .join_ibss = brcmf_cfg80211_join_ibss,
4185 .leave_ibss = brcmf_cfg80211_leave_ibss,
4186 .get_station = brcmf_cfg80211_get_station,
4187 .set_tx_power = brcmf_cfg80211_set_tx_power,
4188 .get_tx_power = brcmf_cfg80211_get_tx_power,
4189 .add_key = brcmf_cfg80211_add_key,
4190 .del_key = brcmf_cfg80211_del_key,
4191 .get_key = brcmf_cfg80211_get_key,
4192 .set_default_key = brcmf_cfg80211_config_default_key,
4193 .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key,
4194 .set_power_mgmt = brcmf_cfg80211_set_power_mgmt,
4195 .connect = brcmf_cfg80211_connect,
4196 .disconnect = brcmf_cfg80211_disconnect,
4197 .suspend = brcmf_cfg80211_suspend,
4198 .resume = brcmf_cfg80211_resume,
4199 .set_pmksa = brcmf_cfg80211_set_pmksa,
4200 .del_pmksa = brcmf_cfg80211_del_pmksa,
4201 .flush_pmksa = brcmf_cfg80211_flush_pmksa,
4202 .start_ap = brcmf_cfg80211_start_ap,
4203 .stop_ap = brcmf_cfg80211_stop_ap,
4204 .change_beacon = brcmf_cfg80211_change_beacon,
4205 .del_station = brcmf_cfg80211_del_station,
4206 .sched_scan_start = brcmf_cfg80211_sched_scan_start,
4207 .sched_scan_stop = brcmf_cfg80211_sched_scan_stop,
4208 .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register,
4209 .mgmt_tx = brcmf_cfg80211_mgmt_tx,
4210 .remain_on_channel = brcmf_p2p_remain_on_channel,
4211 .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel,
4212 .start_p2p_device = brcmf_p2p_start_device,
4213 .stop_p2p_device = brcmf_p2p_stop_device,
4214 .crit_proto_start = brcmf_cfg80211_crit_proto_start,
4215 .crit_proto_stop = brcmf_cfg80211_crit_proto_stop,
4216 .tdls_oper = brcmf_cfg80211_tdls_oper,
4217 CFG80211_TESTMODE_CMD(brcmf_cfg80211_testmode)
4218};
4219
4220static s32 brcmf_nl80211_iftype_to_mode(enum nl80211_iftype type)
4221{
4222 switch (type) {
4223 case NL80211_IFTYPE_AP_VLAN:
4224 case NL80211_IFTYPE_WDS:
4225 case NL80211_IFTYPE_MONITOR:
4226 case NL80211_IFTYPE_MESH_POINT:
4227 return -ENOTSUPP;
4228 case NL80211_IFTYPE_ADHOC:
4229 return WL_MODE_IBSS;
4230 case NL80211_IFTYPE_STATION:
4231 case NL80211_IFTYPE_P2P_CLIENT:
4232 return WL_MODE_BSS;
4233 case NL80211_IFTYPE_AP:
4234 case NL80211_IFTYPE_P2P_GO:
4235 return WL_MODE_AP;
4236 case NL80211_IFTYPE_P2P_DEVICE:
4237 return WL_MODE_P2P;
4238 case NL80211_IFTYPE_UNSPECIFIED:
4239 default:
4240 break;
4241 }
4242
4243 return -EINVAL;
4244}
4245
4246static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
4247{
4248 /* scheduled scan settings */
4249 wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT;
4250 wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
4251 wiphy->max_sched_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
4252 wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
4253}
4254
4255static const struct ieee80211_iface_limit brcmf_iface_limits[] = {
4256 {
4257 .max = 2,
4258 .types = BIT(NL80211_IFTYPE_STATION) |
4259 BIT(NL80211_IFTYPE_ADHOC) |
4260 BIT(NL80211_IFTYPE_AP)
4261 },
4262 {
4263 .max = 1,
4264 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
4265 BIT(NL80211_IFTYPE_P2P_GO)
4266 },
4267 {
4268 .max = 1,
4269 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
4270 }
4271};
4272static const struct ieee80211_iface_combination brcmf_iface_combos[] = {
4273 {
4274 .max_interfaces = BRCMF_IFACE_MAX_CNT,
4275 .num_different_channels = 2,
4276 .n_limits = ARRAY_SIZE(brcmf_iface_limits),
4277 .limits = brcmf_iface_limits
4278 }
4279};
4280
4281static const struct ieee80211_txrx_stypes
4282brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = {
4283 [NL80211_IFTYPE_STATION] = {
4284 .tx = 0xffff,
4285 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
4286 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
4287 },
4288 [NL80211_IFTYPE_P2P_CLIENT] = {
4289 .tx = 0xffff,
4290 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
4291 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
4292 },
4293 [NL80211_IFTYPE_P2P_GO] = {
4294 .tx = 0xffff,
4295 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
4296 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
4297 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
4298 BIT(IEEE80211_STYPE_DISASSOC >> 4) |
4299 BIT(IEEE80211_STYPE_AUTH >> 4) |
4300 BIT(IEEE80211_STYPE_DEAUTH >> 4) |
4301 BIT(IEEE80211_STYPE_ACTION >> 4)
4302 },
4303 [NL80211_IFTYPE_P2P_DEVICE] = {
4304 .tx = 0xffff,
4305 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
4306 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
4307 }
4308};
4309
4310static struct wiphy *brcmf_setup_wiphy(struct device *phydev)
4311{
4312 struct wiphy *wiphy;
4313 s32 err = 0;
4314
4315 wiphy = wiphy_new(&wl_cfg80211_ops, sizeof(struct brcmf_cfg80211_info));
4316 if (!wiphy) {
4317 brcmf_err("Could not allocate wiphy device\n");
4318 return ERR_PTR(-ENOMEM);
4319 }
4320 set_wiphy_dev(wiphy, phydev);
4321 wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
4322 wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
4323 wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX;
4324 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
4325 BIT(NL80211_IFTYPE_ADHOC) |
4326 BIT(NL80211_IFTYPE_AP) |
4327 BIT(NL80211_IFTYPE_P2P_CLIENT) |
4328 BIT(NL80211_IFTYPE_P2P_GO) |
4329 BIT(NL80211_IFTYPE_P2P_DEVICE);
4330 wiphy->iface_combinations = brcmf_iface_combos;
4331 wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos);
4332 wiphy->bands[IEEE80211_BAND_2GHZ] = &__wl_band_2ghz;
4333 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
4334 wiphy->cipher_suites = __wl_cipher_suites;
4335 wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites);
4336 wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT |
4337 WIPHY_FLAG_OFFCHAN_TX |
4338 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
4339 WIPHY_FLAG_SUPPORTS_TDLS;
4340 wiphy->mgmt_stypes = brcmf_txrx_stypes;
4341 wiphy->max_remain_on_channel_duration = 5000;
4342 brcmf_wiphy_pno_params(wiphy);
4343 brcmf_dbg(INFO, "Registering custom regulatory\n");
4344 wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4345 wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom);
4346 err = wiphy_register(wiphy);
4347 if (err < 0) {
4348 brcmf_err("Could not register wiphy device (%d)\n", err);
4349 wiphy_free(wiphy);
4350 return ERR_PTR(err);
4351 }
4352 return wiphy;
4353}
4354
4355struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
4356 enum nl80211_iftype type,
4357 bool pm_block)
4358{
4359 struct brcmf_cfg80211_vif *vif;
4360
4361 if (cfg->vif_cnt == BRCMF_IFACE_MAX_CNT)
4362 return ERR_PTR(-ENOSPC);
4363
4364 brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n",
4365 sizeof(*vif));
4366 vif = kzalloc(sizeof(*vif), GFP_KERNEL);
4367 if (!vif)
4368 return ERR_PTR(-ENOMEM);
4369
4370 vif->wdev.wiphy = cfg->wiphy;
4371 vif->wdev.iftype = type;
4372
4373 vif->mode = brcmf_nl80211_iftype_to_mode(type);
4374 vif->pm_block = pm_block;
4375 vif->roam_off = -1;
4376
4377 brcmf_init_prof(&vif->profile);
4378
4379 list_add_tail(&vif->list, &cfg->vif_list);
4380 cfg->vif_cnt++;
4381 return vif;
4382}
4383
4384void brcmf_free_vif(struct brcmf_cfg80211_info *cfg,
4385 struct brcmf_cfg80211_vif *vif)
4386{
4387 list_del(&vif->list);
4388 cfg->vif_cnt--;
4389
4390 kfree(vif);
4391 if (!cfg->vif_cnt) {
4392 wiphy_unregister(cfg->wiphy);
4393 wiphy_free(cfg->wiphy);
4394 }
4395}
4396
4397static bool brcmf_is_linkup(const struct brcmf_event_msg *e)
4398{
4399 u32 event = e->event_code;
4400 u32 status = e->status;
4401
4402 if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) {
4403 brcmf_dbg(CONN, "Processing set ssid\n");
4404 return true;
4405 }
4406
4407 return false;
4408}
4409
4410static bool brcmf_is_linkdown(const struct brcmf_event_msg *e)
4411{
4412 u32 event = e->event_code;
4413 u16 flags = e->flags;
4414
4415 if (event == BRCMF_E_LINK && (!(flags & BRCMF_EVENT_MSG_LINK))) {
4416 brcmf_dbg(CONN, "Processing link down\n");
4417 return true;
4418 }
4419 return false;
4420}
4421
4422static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg,
4423 const struct brcmf_event_msg *e)
4424{
4425 u32 event = e->event_code;
4426 u32 status = e->status;
4427
4428 if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) {
4429 brcmf_dbg(CONN, "Processing Link %s & no network found\n",
4430 e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down");
4431 return true;
4432 }
4433
4434 if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) {
4435 brcmf_dbg(CONN, "Processing connecting & no network found\n");
4436 return true;
4437 }
4438
4439 return false;
4440}
4441
4442static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg)
4443{
4444 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4445
4446 kfree(conn_info->req_ie);
4447 conn_info->req_ie = NULL;
4448 conn_info->req_ie_len = 0;
4449 kfree(conn_info->resp_ie);
4450 conn_info->resp_ie = NULL;
4451 conn_info->resp_ie_len = 0;
4452}
4453
4454static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg,
4455 struct brcmf_if *ifp)
4456{
4457 struct brcmf_cfg80211_assoc_ielen_le *assoc_info;
4458 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4459 u32 req_len;
4460 u32 resp_len;
4461 s32 err = 0;
4462
4463 brcmf_clear_assoc_ies(cfg);
4464
4465 err = brcmf_fil_iovar_data_get(ifp, "assoc_info",
4466 cfg->extra_buf, WL_ASSOC_INFO_MAX);
4467 if (err) {
4468 brcmf_err("could not get assoc info (%d)\n", err);
4469 return err;
4470 }
4471 assoc_info =
4472 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf;
4473 req_len = le32_to_cpu(assoc_info->req_len);
4474 resp_len = le32_to_cpu(assoc_info->resp_len);
4475 if (req_len) {
4476 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies",
4477 cfg->extra_buf,
4478 WL_ASSOC_INFO_MAX);
4479 if (err) {
4480 brcmf_err("could not get assoc req (%d)\n", err);
4481 return err;
4482 }
4483 conn_info->req_ie_len = req_len;
4484 conn_info->req_ie =
4485 kmemdup(cfg->extra_buf, conn_info->req_ie_len,
4486 GFP_KERNEL);
4487 } else {
4488 conn_info->req_ie_len = 0;
4489 conn_info->req_ie = NULL;
4490 }
4491 if (resp_len) {
4492 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies",
4493 cfg->extra_buf,
4494 WL_ASSOC_INFO_MAX);
4495 if (err) {
4496 brcmf_err("could not get assoc resp (%d)\n", err);
4497 return err;
4498 }
4499 conn_info->resp_ie_len = resp_len;
4500 conn_info->resp_ie =
4501 kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
4502 GFP_KERNEL);
4503 } else {
4504 conn_info->resp_ie_len = 0;
4505 conn_info->resp_ie = NULL;
4506 }
4507 brcmf_dbg(CONN, "req len (%d) resp len (%d)\n",
4508 conn_info->req_ie_len, conn_info->resp_ie_len);
4509
4510 return err;
4511}
4512
4513static s32
4514brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg,
4515 struct net_device *ndev,
4516 const struct brcmf_event_msg *e)
4517{
4518 struct brcmf_if *ifp = netdev_priv(ndev);
4519 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4520 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4521 struct wiphy *wiphy = cfg_to_wiphy(cfg);
4522 struct ieee80211_channel *notify_channel = NULL;
4523 struct ieee80211_supported_band *band;
4524 struct brcmf_bss_info_le *bi;
4525 struct brcmu_chan ch;
4526 u32 freq;
4527 s32 err = 0;
4528 u8 *buf;
4529
4530 brcmf_dbg(TRACE, "Enter\n");
4531
4532 brcmf_get_assoc_ies(cfg, ifp);
4533 memcpy(profile->bssid, e->addr, ETH_ALEN);
4534 brcmf_update_bss_info(cfg, ifp);
4535
4536 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
4537 if (buf == NULL) {
4538 err = -ENOMEM;
4539 goto done;
4540 }
4541
4542 /* data sent to dongle has to be little endian */
4543 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
4544 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
4545 buf, WL_BSS_INFO_MAX);
4546
4547 if (err)
4548 goto done;
4549
4550 bi = (struct brcmf_bss_info_le *)(buf + 4);
4551 ch.chspec = le16_to_cpu(bi->chanspec);
4552 cfg->d11inf.decchspec(&ch);
4553
4554 if (ch.band == BRCMU_CHAN_BAND_2G)
4555 band = wiphy->bands[IEEE80211_BAND_2GHZ];
4556 else
4557 band = wiphy->bands[IEEE80211_BAND_5GHZ];
4558
4559 freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
4560 notify_channel = ieee80211_get_channel(wiphy, freq);
4561
4562done:
4563 kfree(buf);
4564 cfg80211_roamed(ndev, notify_channel, (u8 *)profile->bssid,
4565 conn_info->req_ie, conn_info->req_ie_len,
4566 conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL);
4567 brcmf_dbg(CONN, "Report roaming result\n");
4568
4569 set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
4570 brcmf_dbg(TRACE, "Exit\n");
4571 return err;
4572}
4573
4574static s32
4575brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
4576 struct net_device *ndev, const struct brcmf_event_msg *e,
4577 bool completed)
4578{
4579 struct brcmf_if *ifp = netdev_priv(ndev);
4580 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4581 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4582 s32 err = 0;
4583
4584 brcmf_dbg(TRACE, "Enter\n");
4585
4586 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4587 &ifp->vif->sme_state)) {
4588 if (completed) {
4589 brcmf_get_assoc_ies(cfg, ifp);
4590 memcpy(profile->bssid, e->addr, ETH_ALEN);
4591 brcmf_update_bss_info(cfg, ifp);
4592 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4593 &ifp->vif->sme_state);
4594 }
4595 cfg80211_connect_result(ndev,
4596 (u8 *)profile->bssid,
4597 conn_info->req_ie,
4598 conn_info->req_ie_len,
4599 conn_info->resp_ie,
4600 conn_info->resp_ie_len,
4601 completed ? WLAN_STATUS_SUCCESS :
4602 WLAN_STATUS_AUTH_TIMEOUT,
4603 GFP_KERNEL);
4604 brcmf_dbg(CONN, "Report connect result - connection %s\n",
4605 completed ? "succeeded" : "failed");
4606 }
4607 brcmf_dbg(TRACE, "Exit\n");
4608 return err;
4609}
4610
4611static s32
4612brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg,
4613 struct net_device *ndev,
4614 const struct brcmf_event_msg *e, void *data)
4615{
4616 static int generation;
4617 u32 event = e->event_code;
4618 u32 reason = e->reason;
4619 struct station_info sinfo;
4620
4621 brcmf_dbg(CONN, "event %d, reason %d\n", event, reason);
4622 if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS &&
4623 ndev != cfg_to_ndev(cfg)) {
4624 brcmf_dbg(CONN, "AP mode link down\n");
4625 complete(&cfg->vif_disabled);
4626 return 0;
4627 }
4628
4629 if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) &&
4630 (reason == BRCMF_E_STATUS_SUCCESS)) {
4631 memset(&sinfo, 0, sizeof(sinfo));
4632 sinfo.filled = STATION_INFO_ASSOC_REQ_IES;
4633 if (!data) {
4634 brcmf_err("No IEs present in ASSOC/REASSOC_IND");
4635 return -EINVAL;
4636 }
4637 sinfo.assoc_req_ies = data;
4638 sinfo.assoc_req_ies_len = e->datalen;
4639 generation++;
4640 sinfo.generation = generation;
4641 cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_KERNEL);
4642 } else if ((event == BRCMF_E_DISASSOC_IND) ||
4643 (event == BRCMF_E_DEAUTH_IND) ||
4644 (event == BRCMF_E_DEAUTH)) {
4645 cfg80211_del_sta(ndev, e->addr, GFP_KERNEL);
4646 }
4647 return 0;
4648}
4649
4650static s32
4651brcmf_notify_connect_status(struct brcmf_if *ifp,
4652 const struct brcmf_event_msg *e, void *data)
4653{
4654 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4655 struct net_device *ndev = ifp->ndev;
4656 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4657 s32 err = 0;
4658
4659 if (ifp->vif->mode == WL_MODE_AP) {
4660 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data);
4661 } else if (brcmf_is_linkup(e)) {
4662 brcmf_dbg(CONN, "Linkup\n");
4663 if (brcmf_is_ibssmode(ifp->vif)) {
4664 memcpy(profile->bssid, e->addr, ETH_ALEN);
4665 wl_inform_ibss(cfg, ndev, e->addr);
4666 cfg80211_ibss_joined(ndev, e->addr, GFP_KERNEL);
4667 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4668 &ifp->vif->sme_state);
4669 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4670 &ifp->vif->sme_state);
4671 } else
4672 brcmf_bss_connect_done(cfg, ndev, e, true);
4673 } else if (brcmf_is_linkdown(e)) {
4674 brcmf_dbg(CONN, "Linkdown\n");
4675 if (!brcmf_is_ibssmode(ifp->vif)) {
4676 brcmf_bss_connect_done(cfg, ndev, e, false);
4677 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTED,
4678 &ifp->vif->sme_state))
4679 cfg80211_disconnected(ndev, 0, NULL, 0,
4680 GFP_KERNEL);
4681 }
4682 brcmf_link_down(ifp->vif);
4683 brcmf_init_prof(ndev_to_prof(ndev));
4684 if (ndev != cfg_to_ndev(cfg))
4685 complete(&cfg->vif_disabled);
4686 } else if (brcmf_is_nonetwork(cfg, e)) {
4687 if (brcmf_is_ibssmode(ifp->vif))
4688 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4689 &ifp->vif->sme_state);
4690 else
4691 brcmf_bss_connect_done(cfg, ndev, e, false);
4692 }
4693
4694 return err;
4695}
4696
4697static s32
4698brcmf_notify_roaming_status(struct brcmf_if *ifp,
4699 const struct brcmf_event_msg *e, void *data)
4700{
4701 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4702 s32 err = 0;
4703 u32 event = e->event_code;
4704 u32 status = e->status;
4705
4706 if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) {
4707 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state))
4708 brcmf_bss_roaming_done(cfg, ifp->ndev, e);
4709 else
4710 brcmf_bss_connect_done(cfg, ifp->ndev, e, true);
4711 }
4712
4713 return err;
4714}
4715
4716static s32
4717brcmf_notify_mic_status(struct brcmf_if *ifp,
4718 const struct brcmf_event_msg *e, void *data)
4719{
4720 u16 flags = e->flags;
4721 enum nl80211_key_type key_type;
4722
4723 if (flags & BRCMF_EVENT_MSG_GROUP)
4724 key_type = NL80211_KEYTYPE_GROUP;
4725 else
4726 key_type = NL80211_KEYTYPE_PAIRWISE;
4727
4728 cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1,
4729 NULL, GFP_KERNEL);
4730
4731 return 0;
4732}
4733
4734static s32 brcmf_notify_vif_event(struct brcmf_if *ifp,
4735 const struct brcmf_event_msg *e, void *data)
4736{
4737 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4738 struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data;
4739 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
4740 struct brcmf_cfg80211_vif *vif;
4741
4742 brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfg %u\n",
4743 ifevent->action, ifevent->flags, ifevent->ifidx,
4744 ifevent->bssidx);
4745
4746 mutex_lock(&event->vif_event_lock);
4747 event->action = ifevent->action;
4748 vif = event->vif;
4749
4750 switch (ifevent->action) {
4751 case BRCMF_E_IF_ADD:
4752 /* waiting process may have timed out */
4753 if (!cfg->vif_event.vif) {
4754 mutex_unlock(&event->vif_event_lock);
4755 return -EBADF;
4756 }
4757
4758 ifp->vif = vif;
4759 vif->ifp = ifp;
4760 if (ifp->ndev) {
4761 vif->wdev.netdev = ifp->ndev;
4762 ifp->ndev->ieee80211_ptr = &vif->wdev;
4763 SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy));
4764 }
4765 mutex_unlock(&event->vif_event_lock);
4766 wake_up(&event->vif_wq);
4767 return 0;
4768
4769 case BRCMF_E_IF_DEL:
4770 mutex_unlock(&event->vif_event_lock);
4771 /* event may not be upon user request */
4772 if (brcmf_cfg80211_vif_event_armed(cfg))
4773 wake_up(&event->vif_wq);
4774 return 0;
4775
4776 case BRCMF_E_IF_CHANGE:
4777 mutex_unlock(&event->vif_event_lock);
4778 wake_up(&event->vif_wq);
4779 return 0;
4780
4781 default:
4782 mutex_unlock(&event->vif_event_lock);
4783 break;
4784 }
4785 return -EINVAL;
4786}
4787
4788static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf)
4789{
4790 conf->frag_threshold = (u32)-1;
4791 conf->rts_threshold = (u32)-1;
4792 conf->retry_short = (u32)-1;
4793 conf->retry_long = (u32)-1;
4794 conf->tx_power = -1;
4795}
4796
4797static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg)
4798{
4799 brcmf_fweh_register(cfg->pub, BRCMF_E_LINK,
4800 brcmf_notify_connect_status);
4801 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND,
4802 brcmf_notify_connect_status);
4803 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH,
4804 brcmf_notify_connect_status);
4805 brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND,
4806 brcmf_notify_connect_status);
4807 brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND,
4808 brcmf_notify_connect_status);
4809 brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND,
4810 brcmf_notify_connect_status);
4811 brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM,
4812 brcmf_notify_roaming_status);
4813 brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR,
4814 brcmf_notify_mic_status);
4815 brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID,
4816 brcmf_notify_connect_status);
4817 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND,
4818 brcmf_notify_sched_scan_results);
4819 brcmf_fweh_register(cfg->pub, BRCMF_E_IF,
4820 brcmf_notify_vif_event);
4821 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG,
4822 brcmf_p2p_notify_rx_mgmt_p2p_probereq);
4823 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE,
4824 brcmf_p2p_notify_listen_complete);
4825 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX,
4826 brcmf_p2p_notify_action_frame_rx);
4827 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE,
4828 brcmf_p2p_notify_action_tx_complete);
4829 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE,
4830 brcmf_p2p_notify_action_tx_complete);
4831}
4832
4833static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg)
4834{
4835 kfree(cfg->conf);
4836 cfg->conf = NULL;
4837 kfree(cfg->escan_ioctl_buf);
4838 cfg->escan_ioctl_buf = NULL;
4839 kfree(cfg->extra_buf);
4840 cfg->extra_buf = NULL;
4841 kfree(cfg->pmk_list);
4842 cfg->pmk_list = NULL;
4843}
4844
4845static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg)
4846{
4847 cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL);
4848 if (!cfg->conf)
4849 goto init_priv_mem_out;
4850 cfg->escan_ioctl_buf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
4851 if (!cfg->escan_ioctl_buf)
4852 goto init_priv_mem_out;
4853 cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
4854 if (!cfg->extra_buf)
4855 goto init_priv_mem_out;
4856 cfg->pmk_list = kzalloc(sizeof(*cfg->pmk_list), GFP_KERNEL);
4857 if (!cfg->pmk_list)
4858 goto init_priv_mem_out;
4859
4860 return 0;
4861
4862init_priv_mem_out:
4863 brcmf_deinit_priv_mem(cfg);
4864
4865 return -ENOMEM;
4866}
4867
4868static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg)
4869{
4870 s32 err = 0;
4871
4872 cfg->scan_request = NULL;
4873 cfg->pwr_save = true;
4874 cfg->roam_on = true; /* roam on & off switch.
4875 we enable roam per default */
4876 cfg->active_scan = true; /* we do active scan for
4877 specific scan per default */
4878 cfg->dongle_up = false; /* dongle is not up yet */
4879 err = brcmf_init_priv_mem(cfg);
4880 if (err)
4881 return err;
4882 brcmf_register_event_handlers(cfg);
4883 mutex_init(&cfg->usr_sync);
4884 brcmf_init_escan(cfg);
4885 brcmf_init_conf(cfg->conf);
4886 init_completion(&cfg->vif_disabled);
4887 return err;
4888}
4889
4890static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg)
4891{
4892 cfg->dongle_up = false; /* dongle down */
4893 brcmf_abort_scanning(cfg);
4894 brcmf_deinit_priv_mem(cfg);
4895}
4896
4897static void init_vif_event(struct brcmf_cfg80211_vif_event *event)
4898{
4899 init_waitqueue_head(&event->vif_wq);
4900 mutex_init(&event->vif_event_lock);
4901}
4902
4903struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
4904 struct device *busdev)
4905{
4906 struct net_device *ndev = drvr->iflist[0]->ndev;
4907 struct brcmf_cfg80211_info *cfg;
4908 struct wiphy *wiphy;
4909 struct brcmf_cfg80211_vif *vif;
4910 struct brcmf_if *ifp;
4911 s32 err = 0;
4912 s32 io_type;
4913
4914 if (!ndev) {
4915 brcmf_err("ndev is invalid\n");
4916 return NULL;
4917 }
4918
4919 ifp = netdev_priv(ndev);
4920 wiphy = brcmf_setup_wiphy(busdev);
4921 if (IS_ERR(wiphy))
4922 return NULL;
4923
4924 cfg = wiphy_priv(wiphy);
4925 cfg->wiphy = wiphy;
4926 cfg->pub = drvr;
4927 init_vif_event(&cfg->vif_event);
4928 INIT_LIST_HEAD(&cfg->vif_list);
4929
4930 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION, false);
4931 if (IS_ERR(vif)) {
4932 wiphy_free(wiphy);
4933 return NULL;
4934 }
4935
4936 vif->ifp = ifp;
4937 vif->wdev.netdev = ndev;
4938 ndev->ieee80211_ptr = &vif->wdev;
4939 SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy));
4940
4941 err = wl_init_priv(cfg);
4942 if (err) {
4943 brcmf_err("Failed to init iwm_priv (%d)\n", err);
4944 goto cfg80211_attach_out;
4945 }
4946 ifp->vif = vif;
4947
4948 err = brcmf_p2p_attach(cfg);
4949 if (err) {
4950 brcmf_err("P2P initilisation failed (%d)\n", err);
4951 goto cfg80211_p2p_attach_out;
4952 }
4953 err = brcmf_btcoex_attach(cfg);
4954 if (err) {
4955 brcmf_err("BT-coex initialisation failed (%d)\n", err);
4956 brcmf_p2p_detach(&cfg->p2p);
4957 goto cfg80211_p2p_attach_out;
4958 }
4959
4960 err = brcmf_fil_iovar_int_set(ifp, "tdls_enable", 1);
4961 if (err) {
4962 brcmf_dbg(INFO, "TDLS not enabled (%d)\n", err);
4963 wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_TDLS;
4964 }
4965
4966 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_VERSION,
4967 &io_type);
4968 if (err) {
4969 brcmf_err("Failed to get D11 version (%d)\n", err);
4970 goto cfg80211_p2p_attach_out;
4971 }
4972 cfg->d11inf.io_type = (u8)io_type;
4973 brcmu_d11_attach(&cfg->d11inf);
4974
4975 return cfg;
4976
4977cfg80211_p2p_attach_out:
4978 wl_deinit_priv(cfg);
4979
4980cfg80211_attach_out:
4981 brcmf_free_vif(cfg, vif);
4982 return NULL;
4983}
4984
4985void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
4986{
4987 struct brcmf_cfg80211_vif *vif;
4988 struct brcmf_cfg80211_vif *tmp;
4989
4990 wl_deinit_priv(cfg);
4991 brcmf_btcoex_detach(cfg);
4992 list_for_each_entry_safe(vif, tmp, &cfg->vif_list, list) {
4993 brcmf_free_vif(cfg, vif);
4994 }
4995}
4996
4997static s32
4998brcmf_dongle_roam(struct brcmf_if *ifp, u32 roamvar, u32 bcn_timeout)
4999{
5000 s32 err = 0;
5001 __le32 roamtrigger[2];
5002 __le32 roam_delta[2];
5003
5004 /*
5005 * Setup timeout if Beacons are lost and roam is
5006 * off to report link down
5007 */
5008 if (roamvar) {
5009 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout);
5010 if (err) {
5011 brcmf_err("bcn_timeout error (%d)\n", err);
5012 goto dongle_rom_out;
5013 }
5014 }
5015
5016 /*
5017 * Enable/Disable built-in roaming to allow supplicant
5018 * to take care of roaming
5019 */
5020 brcmf_dbg(INFO, "Internal Roaming = %s\n", roamvar ? "Off" : "On");
5021 err = brcmf_fil_iovar_int_set(ifp, "roam_off", roamvar);
5022 if (err) {
5023 brcmf_err("roam_off error (%d)\n", err);
5024 goto dongle_rom_out;
5025 }
5026
5027 roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL);
5028 roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL);
5029 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER,
5030 (void *)roamtrigger, sizeof(roamtrigger));
5031 if (err) {
5032 brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err);
5033 goto dongle_rom_out;
5034 }
5035
5036 roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA);
5037 roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL);
5038 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA,
5039 (void *)roam_delta, sizeof(roam_delta));
5040 if (err) {
5041 brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err);
5042 goto dongle_rom_out;
5043 }
5044
5045dongle_rom_out:
5046 return err;
5047}
5048
5049static s32
5050brcmf_dongle_scantime(struct brcmf_if *ifp, s32 scan_assoc_time,
5051 s32 scan_unassoc_time, s32 scan_passive_time)
5052{
5053 s32 err = 0;
5054
5055 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
5056 scan_assoc_time);
5057 if (err) {
5058 if (err == -EOPNOTSUPP)
5059 brcmf_dbg(INFO, "Scan assoc time is not supported\n");
5060 else
5061 brcmf_err("Scan assoc time error (%d)\n", err);
5062 goto dongle_scantime_out;
5063 }
5064 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
5065 scan_unassoc_time);
5066 if (err) {
5067 if (err == -EOPNOTSUPP)
5068 brcmf_dbg(INFO, "Scan unassoc time is not supported\n");
5069 else
5070 brcmf_err("Scan unassoc time error (%d)\n", err);
5071 goto dongle_scantime_out;
5072 }
5073
5074 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME,
5075 scan_passive_time);
5076 if (err) {
5077 if (err == -EOPNOTSUPP)
5078 brcmf_dbg(INFO, "Scan passive time is not supported\n");
5079 else
5080 brcmf_err("Scan passive time error (%d)\n", err);
5081 goto dongle_scantime_out;
5082 }
5083
5084dongle_scantime_out:
5085 return err;
5086}
5087
5088
5089static s32 brcmf_construct_reginfo(struct brcmf_cfg80211_info *cfg, u32 bw_cap)
5090{
5091 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5092 struct ieee80211_channel *band_chan_arr;
5093 struct brcmf_chanspec_list *list;
5094 struct brcmu_chan ch;
5095 s32 err;
5096 u8 *pbuf;
5097 u32 i, j;
5098 u32 total;
5099 enum ieee80211_band band;
5100 u32 channel;
5101 u32 *n_cnt;
5102 bool ht40_allowed;
5103 u32 index;
5104 u32 ht40_flag;
5105 bool update;
5106 u32 array_size;
5107
5108 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5109
5110 if (pbuf == NULL)
5111 return -ENOMEM;
5112
5113 list = (struct brcmf_chanspec_list *)pbuf;
5114
5115 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5116 BRCMF_DCMD_MEDLEN);
5117 if (err) {
5118 brcmf_err("get chanspecs error (%d)\n", err);
5119 goto exit;
5120 }
5121
5122 __wl_band_2ghz.n_channels = 0;
5123 __wl_band_5ghz_a.n_channels = 0;
5124
5125 total = le32_to_cpu(list->count);
5126 for (i = 0; i < total; i++) {
5127 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5128 cfg->d11inf.decchspec(&ch);
5129
5130 if (ch.band == BRCMU_CHAN_BAND_2G) {
5131 band_chan_arr = __wl_2ghz_channels;
5132 array_size = ARRAY_SIZE(__wl_2ghz_channels);
5133 n_cnt = &__wl_band_2ghz.n_channels;
5134 band = IEEE80211_BAND_2GHZ;
5135 ht40_allowed = (bw_cap == WLC_N_BW_40ALL);
5136 } else if (ch.band == BRCMU_CHAN_BAND_5G) {
5137 band_chan_arr = __wl_5ghz_a_channels;
5138 array_size = ARRAY_SIZE(__wl_5ghz_a_channels);
5139 n_cnt = &__wl_band_5ghz_a.n_channels;
5140 band = IEEE80211_BAND_5GHZ;
5141 ht40_allowed = !(bw_cap == WLC_N_BW_20ALL);
5142 } else {
5143 brcmf_err("Invalid channel Sepc. 0x%x.\n", ch.chspec);
5144 continue;
5145 }
5146 if (!ht40_allowed && ch.bw == BRCMU_CHAN_BW_40)
5147 continue;
5148 update = false;
5149 for (j = 0; (j < *n_cnt && (*n_cnt < array_size)); j++) {
5150 if (band_chan_arr[j].hw_value == ch.chnum) {
5151 update = true;
5152 break;
5153 }
5154 }
5155 if (update)
5156 index = j;
5157 else
5158 index = *n_cnt;
5159 if (index < array_size) {
5160 band_chan_arr[index].center_freq =
5161 ieee80211_channel_to_frequency(ch.chnum, band);
5162 band_chan_arr[index].hw_value = ch.chnum;
5163
5164 if (ch.bw == BRCMU_CHAN_BW_40 && ht40_allowed) {
5165 /* assuming the order is HT20, HT40 Upper,
5166 * HT40 lower from chanspecs
5167 */
5168 ht40_flag = band_chan_arr[index].flags &
5169 IEEE80211_CHAN_NO_HT40;
5170 if (ch.sb == BRCMU_CHAN_SB_U) {
5171 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5172 band_chan_arr[index].flags &=
5173 ~IEEE80211_CHAN_NO_HT40;
5174 band_chan_arr[index].flags |=
5175 IEEE80211_CHAN_NO_HT40PLUS;
5176 } else {
5177 /* It should be one of
5178 * IEEE80211_CHAN_NO_HT40 or
5179 * IEEE80211_CHAN_NO_HT40PLUS
5180 */
5181 band_chan_arr[index].flags &=
5182 ~IEEE80211_CHAN_NO_HT40;
5183 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5184 band_chan_arr[index].flags |=
5185 IEEE80211_CHAN_NO_HT40MINUS;
5186 }
5187 } else {
5188 band_chan_arr[index].flags =
5189 IEEE80211_CHAN_NO_HT40;
5190 ch.bw = BRCMU_CHAN_BW_20;
5191 cfg->d11inf.encchspec(&ch);
5192 channel = ch.chspec;
5193 err = brcmf_fil_bsscfg_int_get(ifp,
5194 "per_chan_info",
5195 &channel);
5196 if (!err) {
5197 if (channel & WL_CHAN_RADAR)
5198 band_chan_arr[index].flags |=
5199 (IEEE80211_CHAN_RADAR |
5200 IEEE80211_CHAN_NO_IBSS);
5201 if (channel & WL_CHAN_PASSIVE)
5202 band_chan_arr[index].flags |=
5203 IEEE80211_CHAN_PASSIVE_SCAN;
5204 }
5205 }
5206 if (!update)
5207 (*n_cnt)++;
5208 }
5209 }
5210exit:
5211 kfree(pbuf);
5212 return err;
5213}
5214
5215
5216static s32 brcmf_update_wiphybands(struct brcmf_cfg80211_info *cfg)
5217{
5218 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5219 struct wiphy *wiphy;
5220 s32 phy_list;
5221 u32 band_list[3];
5222 u32 nmode;
5223 u32 bw_cap = 0;
5224 s8 phy;
5225 s32 err;
5226 u32 nband;
5227 s32 i;
5228 struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];
5229 s32 index;
5230
5231 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_PHYLIST,
5232 &phy_list, sizeof(phy_list));
5233 if (err) {
5234 brcmf_err("BRCMF_C_GET_PHYLIST error (%d)\n", err);
5235 return err;
5236 }
5237
5238 phy = ((char *)&phy_list)[0];
5239 brcmf_dbg(INFO, "BRCMF_C_GET_PHYLIST reported: %c phy\n", phy);
5240
5241
5242 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BANDLIST,
5243 &band_list, sizeof(band_list));
5244 if (err) {
5245 brcmf_err("BRCMF_C_GET_BANDLIST error (%d)\n", err);
5246 return err;
5247 }
5248 brcmf_dbg(INFO, "BRCMF_C_GET_BANDLIST reported: 0x%08x 0x%08x 0x%08x phy\n",
5249 band_list[0], band_list[1], band_list[2]);
5250
5251 err = brcmf_fil_iovar_int_get(ifp, "nmode", &nmode);
5252 if (err) {
5253 brcmf_err("nmode error (%d)\n", err);
5254 } else {
5255 err = brcmf_fil_iovar_int_get(ifp, "mimo_bw_cap", &bw_cap);
5256 if (err)
5257 brcmf_err("mimo_bw_cap error (%d)\n", err);
5258 }
5259 brcmf_dbg(INFO, "nmode=%d, mimo_bw_cap=%d\n", nmode, bw_cap);
5260
5261 err = brcmf_construct_reginfo(cfg, bw_cap);
5262 if (err) {
5263 brcmf_err("brcmf_construct_reginfo failed (%d)\n", err);
5264 return err;
5265 }
5266
5267 nband = band_list[0];
5268 memset(bands, 0, sizeof(bands));
5269
5270 for (i = 1; i <= nband && i < ARRAY_SIZE(band_list); i++) {
5271 index = -1;
5272 if ((band_list[i] == WLC_BAND_5G) &&
5273 (__wl_band_5ghz_a.n_channels > 0)) {
5274 index = IEEE80211_BAND_5GHZ;
5275 bands[index] = &__wl_band_5ghz_a;
5276 if ((bw_cap == WLC_N_BW_40ALL) ||
5277 (bw_cap == WLC_N_BW_20IN2G_40IN5G))
5278 bands[index]->ht_cap.cap |=
5279 IEEE80211_HT_CAP_SGI_40;
5280 } else if ((band_list[i] == WLC_BAND_2G) &&
5281 (__wl_band_2ghz.n_channels > 0)) {
5282 index = IEEE80211_BAND_2GHZ;
5283 bands[index] = &__wl_band_2ghz;
5284 if (bw_cap == WLC_N_BW_40ALL)
5285 bands[index]->ht_cap.cap |=
5286 IEEE80211_HT_CAP_SGI_40;
5287 }
5288
5289 if ((index >= 0) && nmode) {
5290 bands[index]->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
5291 bands[index]->ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
5292 bands[index]->ht_cap.ht_supported = true;
5293 bands[index]->ht_cap.ampdu_factor =
5294 IEEE80211_HT_MAX_AMPDU_64K;
5295 bands[index]->ht_cap.ampdu_density =
5296 IEEE80211_HT_MPDU_DENSITY_16;
5297 /* An HT shall support all EQM rates for one spatial
5298 * stream
5299 */
5300 bands[index]->ht_cap.mcs.rx_mask[0] = 0xff;
5301 }
5302 }
5303
5304 wiphy = cfg_to_wiphy(cfg);
5305 wiphy->bands[IEEE80211_BAND_2GHZ] = bands[IEEE80211_BAND_2GHZ];
5306 wiphy->bands[IEEE80211_BAND_5GHZ] = bands[IEEE80211_BAND_5GHZ];
5307 wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom);
5308
5309 return err;
5310}
5311
5312
5313static s32 brcmf_dongle_probecap(struct brcmf_cfg80211_info *cfg)
5314{
5315 return brcmf_update_wiphybands(cfg);
5316}
5317
5318static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)
5319{
5320 struct net_device *ndev;
5321 struct wireless_dev *wdev;
5322 struct brcmf_if *ifp;
5323 s32 power_mode;
5324 s32 err = 0;
5325
5326 if (cfg->dongle_up)
5327 return err;
5328
5329 ndev = cfg_to_ndev(cfg);
5330 wdev = ndev->ieee80211_ptr;
5331 ifp = netdev_priv(ndev);
5332
5333 /* make sure RF is ready for work */
5334 brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
5335
5336 brcmf_dongle_scantime(ifp, WL_SCAN_CHANNEL_TIME,
5337 WL_SCAN_UNASSOC_TIME, WL_SCAN_PASSIVE_TIME);
5338
5339 power_mode = cfg->pwr_save ? PM_FAST : PM_OFF;
5340 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode);
5341 if (err)
5342 goto default_conf_out;
5343 brcmf_dbg(INFO, "power save set to %s\n",
5344 (power_mode ? "enabled" : "disabled"));
5345
5346 err = brcmf_dongle_roam(ifp, (cfg->roam_on ? 0 : 1), WL_BEACON_TIMEOUT);
5347 if (err)
5348 goto default_conf_out;
5349 err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype,
5350 NULL, NULL);
5351 if (err)
5352 goto default_conf_out;
5353 err = brcmf_dongle_probecap(cfg);
5354 if (err)
5355 goto default_conf_out;
5356
5357 brcmf_configure_arp_offload(ifp, true);
5358
5359 cfg->dongle_up = true;
5360default_conf_out:
5361
5362 return err;
5363
5364}
5365
5366static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp)
5367{
5368 set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5369
5370 return brcmf_config_dongle(ifp->drvr->config);
5371}
5372
5373static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp)
5374{
5375 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5376
5377 /*
5378 * While going down, if associated with AP disassociate
5379 * from AP to save power
5380 */
5381 if (check_vif_up(ifp->vif)) {
5382 brcmf_link_down(ifp->vif);
5383
5384 /* Make sure WPA_Supplicant receives all the event
5385 generated due to DISASSOC call to the fw to keep
5386 the state fw and WPA_Supplicant state consistent
5387 */
5388 brcmf_delay(500);
5389 }
5390
5391 brcmf_abort_scanning(cfg);
5392 clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5393
5394 return 0;
5395}
5396
5397s32 brcmf_cfg80211_up(struct net_device *ndev)
5398{
5399 struct brcmf_if *ifp = netdev_priv(ndev);
5400 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5401 s32 err = 0;
5402
5403 mutex_lock(&cfg->usr_sync);
5404 err = __brcmf_cfg80211_up(ifp);
5405 mutex_unlock(&cfg->usr_sync);
5406
5407 return err;
5408}
5409
5410s32 brcmf_cfg80211_down(struct net_device *ndev)
5411{
5412 struct brcmf_if *ifp = netdev_priv(ndev);
5413 struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5414 s32 err = 0;
5415
5416 mutex_lock(&cfg->usr_sync);
5417 err = __brcmf_cfg80211_down(ifp);
5418 mutex_unlock(&cfg->usr_sync);
5419
5420 return err;
5421}
5422
5423enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp)
5424{
5425 struct wireless_dev *wdev = &ifp->vif->wdev;
5426
5427 return wdev->iftype;
5428}
5429
5430u32 wl_get_vif_state_all(struct brcmf_cfg80211_info *cfg, unsigned long state)
5431{
5432 struct brcmf_cfg80211_vif *vif;
5433 bool result = 0;
5434
5435 list_for_each_entry(vif, &cfg->vif_list, list) {
5436 if (test_bit(state, &vif->sme_state))
5437 result++;
5438 }
5439 return result;
5440}
5441
5442static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event,
5443 u8 action)
5444{
5445 u8 evt_action;
5446
5447 mutex_lock(&event->vif_event_lock);
5448 evt_action = event->action;
5449 mutex_unlock(&event->vif_event_lock);
5450 return evt_action == action;
5451}
5452
5453void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
5454 struct brcmf_cfg80211_vif *vif)
5455{
5456 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5457
5458 mutex_lock(&event->vif_event_lock);
5459 event->vif = vif;
5460 event->action = 0;
5461 mutex_unlock(&event->vif_event_lock);
5462}
5463
5464bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg)
5465{
5466 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5467 bool armed;
5468
5469 mutex_lock(&event->vif_event_lock);
5470 armed = event->vif != NULL;
5471 mutex_unlock(&event->vif_event_lock);
5472
5473 return armed;
5474}
5475int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
5476 u8 action, ulong timeout)
5477{
5478 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5479
5480 return wait_event_timeout(event->vif_wq,
5481 vif_event_equals(event, action), timeout);
5482}
5483
Linux kernel - Deliverables
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